PKG_NAME:=mac80211
PKG_RELEASE:=1
+PKG_VERSION:=2008-04-06
+PKG_SOURCE:=compat-wireless-$(PKG_VERSION).tar.bz2
+PKG_SOURCE_URL:=http://linuxwireless.org/download/compat-wireless-2.6/
+PKG_BUILD_DIR:=$(BUILD_DIR)/compat-wireless-$(PKG_VERSION)
+
include $(INCLUDE_DIR)/package.mk
define KernelPackage/mac80211
SUBMENU:=Wireless Drivers
TITLE:=Linux 802.11 Wireless Networking Stack
- DEPENDS:=@LINUX_2_6_23 +kmod-crypto-arc4 +kmod-crypto-aes +wireless-tools
+ DEPENDS:=@LINUX_2_6_23||@LINUX_2_6_24 +kmod-crypto-arc4 +kmod-crypto-aes +wireless-tools
FILES:= \
$(PKG_BUILD_DIR)/net/mac80211/mac80211.$(LINUX_KMOD_SUFFIX) \
$(PKG_BUILD_DIR)/net/wireless/cfg80211.$(LINUX_KMOD_SUFFIX)
CONFIG_MAC80211_RC_PID=y \
CONFIG_MAC80211_LEDS=$(CONFIG_LEDS_TRIGGERS) \
LINUXINCLUDE="-I$(PKG_BUILD_DIR)/include -I$(LINUX_DIR)/include -include linux/autoconf.h" \
+ KLIB_BUILD="$(LINUX_DIR)" \
define Build/Prepare
rm -rf $(PKG_BUILD_DIR)
mkdir -p $(PKG_BUILD_DIR)
- $(CP) ./src/* $(PKG_BUILD_DIR)/
- $(Build/Patch)
+ $(PKG_UNPACK)
$(if $(QUILT),touch $(PKG_BUILD_DIR)/.quilt_used)
endef
define Build/Compile
- $(MAKE) -C "$(LINUX_DIR)" $(MAKE_OPTS) SUBDIRS="$(PKG_BUILD_DIR)/net/wireless" modules
- $(MAKE) -C "$(LINUX_DIR)" $(MAKE_OPTS) SUBDIRS="$(PKG_BUILD_DIR)/net/mac80211" modules
+ $(MAKE) -C "$(PKG_BUILD_DIR)" $(MAKE_OPTS) all
endef
-ifeq ($(CONFIG_LINUX_2_6_23),y)
- define Build/InstallDev
+define Build/InstallDev
mkdir -p $(1)/usr/include/mac80211
$(CP) $(PKG_BUILD_DIR)/net/mac80211/*.h $(PKG_BUILD_DIR)/include/* $(1)/usr/include/mac80211/
- endef
+endef
- define KernelPackage/mac80211/install
+define KernelPackage/mac80211/install
$(INSTALL_DIR) $(1)/lib/wifi
$(INSTALL_DATA) ./files/lib/wifi/mac80211.sh $(1)/lib/wifi
- endef
-endif
+endef
$(eval $(call KernelPackage,mac80211))
+++ /dev/null
-Index: mac80211/net/mac80211/ieee80211.c
-===================================================================
---- mac80211.orig/net/mac80211/ieee80211.c 2008-02-15 22:20:53.000000000 +0100
-+++ mac80211/net/mac80211/ieee80211.c 2008-02-15 22:21:01.000000000 +0100
-@@ -21,7 +21,6 @@
- #include <linux/wireless.h>
- #include <linux/rtnetlink.h>
- #include <linux/bitmap.h>
--#include <net/net_namespace.h>
- #include <net/cfg80211.h>
-
- #include "ieee80211_i.h"
-@@ -36,6 +35,15 @@
-
- #define SUPP_MCS_SET_LEN 16
-
-+
-+char *print_mac(char *buf, const u8 *addr)
-+{
-+ sprintf(buf, MAC_FMT,
-+ addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
-+ return buf;
-+}
-+
-+
- /*
- * For seeing transmitted packets on monitor interfaces
- * we have a radiotap header too.
-@@ -48,11 +56,13 @@ struct ieee80211_tx_status_rtap_hdr {
-
- /* common interface routines */
-
-+#if 0
- static int header_parse_80211(const struct sk_buff *skb, unsigned char *haddr)
- {
- memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */
- return ETH_ALEN;
- }
-+#endif
-
- /* must be called under mdev tx lock */
- static void ieee80211_configure_filter(struct ieee80211_local *local)
-@@ -800,6 +810,7 @@ static void ieee80211_set_multicast_list
- dev_mc_sync(local->mdev, dev);
- }
-
-+#if 0
- static const struct header_ops ieee80211_header_ops = {
- .create = eth_header,
- .parse = header_parse_80211,
-@@ -807,6 +818,7 @@ static const struct header_ops ieee80211
- .cache = eth_header_cache,
- .cache_update = eth_header_cache_update,
- };
-+#endif
-
- /* Must not be called for mdev */
- void ieee80211_if_setup(struct net_device *dev)
-@@ -1455,7 +1467,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(
- mdev->open = ieee80211_master_open;
- mdev->stop = ieee80211_master_stop;
- mdev->type = ARPHRD_IEEE80211;
-- mdev->header_ops = &ieee80211_header_ops;
-+// mdev->header_ops = &ieee80211_header_ops;
- mdev->set_multicast_list = ieee80211_master_set_multicast_list;
-
- sdata->vif.type = IEEE80211_IF_TYPE_AP;
-Index: mac80211/net/mac80211/ieee80211_i.h
-===================================================================
---- mac80211.orig/net/mac80211/ieee80211_i.h 2008-02-15 22:20:53.000000000 +0100
-+++ mac80211/net/mac80211/ieee80211_i.h 2008-02-15 22:21:37.000000000 +0100
-@@ -26,6 +26,16 @@
- #include "ieee80211_key.h"
- #include "sta_info.h"
-
-+
-+#define BIT(nr) (1 << (nr))
-+
-+#define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
-+extern char *print_mac(char *buf, const u8 *addr);
-+#define DECLARE_MAC_BUF(var) char var[18] __maybe_unused
-+
-+#define CONFIG_MAC80211_RC_DEFAULT __stringify(__CONFIG_MAC80211_RC_DEFAULT)
-+
-+
- /* ieee80211.o internal definitions, etc. These are not included into
- * low-level drivers. */
-
-Index: mac80211/net/mac80211/ieee80211_ioctl.c
-===================================================================
---- mac80211.orig/net/mac80211/ieee80211_ioctl.c 2008-02-15 22:20:53.000000000 +0100
-+++ mac80211/net/mac80211/ieee80211_ioctl.c 2008-02-15 22:21:01.000000000 +0100
-@@ -207,7 +207,7 @@ static int ieee80211_ioctl_giwrange(stru
- IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
- IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
-
-- range->scan_capa |= IW_SCAN_CAPA_ESSID;
-+// range->scan_capa |= IW_SCAN_CAPA_ESSID;
-
- return 0;
- }
-Index: mac80211/net/wireless/core.c
-===================================================================
---- mac80211.orig/net/wireless/core.c 2008-02-15 22:20:53.000000000 +0100
-+++ mac80211/net/wireless/core.c 2008-02-15 22:21:01.000000000 +0100
-@@ -69,7 +69,7 @@ __cfg80211_drv_from_info(struct genl_inf
-
- if (info->attrs[NL80211_ATTR_IFINDEX]) {
- ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
-- dev = dev_get_by_index(&init_net, ifindex);
-+ dev = dev_get_by_index(ifindex);
- if (dev) {
- if (dev->ieee80211_ptr)
- byifidx =
-@@ -120,7 +120,7 @@ cfg80211_get_dev_from_ifindex(int ifinde
- struct net_device *dev;
-
- mutex_lock(&cfg80211_drv_mutex);
-- dev = dev_get_by_index(&init_net, ifindex);
-+ dev = dev_get_by_index(ifindex);
- if (!dev)
- goto out;
- if (dev->ieee80211_ptr) {
-Index: mac80211/net/wireless/nl80211.c
-===================================================================
---- mac80211.orig/net/wireless/nl80211.c 2008-02-15 22:20:53.000000000 +0100
-+++ mac80211/net/wireless/nl80211.c 2008-02-15 22:21:01.000000000 +0100
-@@ -39,7 +39,7 @@ static int get_drv_dev_by_info_ifindex(s
- return -EINVAL;
-
- ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
-- *dev = dev_get_by_index(&init_net, ifindex);
-+ *dev = dev_get_by_index(ifindex);
- if (!*dev)
- return -ENODEV;
-
-@@ -959,7 +959,7 @@ static int get_vlan(struct nlattr *vlana
- *vlan = NULL;
-
- if (vlanattr) {
-- *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr));
-+ *vlan = dev_get_by_index(nla_get_u32(vlanattr));
- if (!*vlan)
- return -ENODEV;
- if (!(*vlan)->ieee80211_ptr)
-Index: mac80211/net/mac80211/cfg.c
-===================================================================
---- mac80211.orig/net/mac80211/cfg.c 2008-02-15 22:20:53.000000000 +0100
-+++ mac80211/net/mac80211/cfg.c 2008-02-15 22:21:01.000000000 +0100
-@@ -9,7 +9,6 @@
- #include <linux/ieee80211.h>
- #include <linux/nl80211.h>
- #include <linux/rtnetlink.h>
--#include <net/net_namespace.h>
- #include <linux/rcupdate.h>
- #include <net/cfg80211.h>
- #include "ieee80211_i.h"
-@@ -68,7 +67,7 @@ static int ieee80211_del_iface(struct wi
- return -ENODEV;
-
- /* we're under RTNL */
-- dev = __dev_get_by_index(&init_net, ifindex);
-+ dev = __dev_get_by_index(ifindex);
- if (!dev)
- return 0;
-
-@@ -89,7 +88,7 @@ static int ieee80211_change_iface(struct
- return -ENODEV;
-
- /* we're under RTNL */
-- dev = __dev_get_by_index(&init_net, ifindex);
-+ dev = __dev_get_by_index(ifindex);
- if (!dev)
- return -ENODEV;
-
-Index: mac80211/net/mac80211/tx.c
-===================================================================
---- mac80211.orig/net/mac80211/tx.c 2008-02-15 22:20:53.000000000 +0100
-+++ mac80211/net/mac80211/tx.c 2008-02-15 22:21:01.000000000 +0100
-@@ -18,7 +18,6 @@
- #include <linux/etherdevice.h>
- #include <linux/bitmap.h>
- #include <linux/rcupdate.h>
--#include <net/net_namespace.h>
- #include <net/ieee80211_radiotap.h>
- #include <net/cfg80211.h>
- #include <net/mac80211.h>
-@@ -1051,7 +1050,7 @@ static int ieee80211_tx_prepare(struct i
- struct net_device *dev;
-
- pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
-- dev = dev_get_by_index(&init_net, pkt_data->ifindex);
-+ dev = dev_get_by_index(pkt_data->ifindex);
- if (unlikely(dev && !is_ieee80211_device(dev, mdev))) {
- dev_put(dev);
- dev = NULL;
-@@ -1265,7 +1264,7 @@ int ieee80211_master_start_xmit(struct s
- memset(&control, 0, sizeof(struct ieee80211_tx_control));
-
- if (pkt_data->ifindex)
-- odev = dev_get_by_index(&init_net, pkt_data->ifindex);
-+ odev = dev_get_by_index(pkt_data->ifindex);
- if (unlikely(odev && !is_ieee80211_device(odev, dev))) {
- dev_put(odev);
- odev = NULL;
-Index: mac80211/net/mac80211/util.c
-===================================================================
---- mac80211.orig/net/mac80211/util.c 2008-02-15 22:20:53.000000000 +0100
-+++ mac80211/net/mac80211/util.c 2008-02-15 22:21:01.000000000 +0100
-@@ -20,7 +20,6 @@
- #include <linux/if_arp.h>
- #include <linux/wireless.h>
- #include <linux/bitmap.h>
--#include <net/net_namespace.h>
- #include <net/cfg80211.h>
- #include <net/rtnetlink.h>
-
-Index: mac80211/net/wireless/sysfs.c
-===================================================================
---- mac80211.orig/net/wireless/sysfs.c 2008-02-15 22:20:53.000000000 +0100
-+++ mac80211/net/wireless/sysfs.c 2008-02-15 22:21:01.000000000 +0100
-@@ -53,7 +53,8 @@ static void wiphy_dev_release(struct dev
- }
-
- #ifdef CONFIG_HOTPLUG
--static int wiphy_uevent(struct device *dev, struct kobj_uevent_env *env)
-+static int wiphy_uevent(struct device *dev, char **envp, int num_envp,
-+ char *buffer, int buffer_size)
- {
- /* TODO, we probably need stuff here */
- return 0;
+++ /dev/null
-Subject: mac80211: allow AP and VLAN modes
-
-This adds AP/VLAN modes to the list of modes that a mac80211
-interface can be created in/switched into.
-
-Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
----
- net/mac80211/cfg.c | 4 ++++
- 1 file changed, 4 insertions(+)
-
-Index: mac80211/net/mac80211/cfg.c
-===================================================================
---- mac80211.orig/net/mac80211/cfg.c 2008-02-16 20:16:09.000000000 +0100
-+++ mac80211/net/mac80211/cfg.c 2008-02-16 20:16:39.000000000 +0100
-@@ -27,6 +27,10 @@ nl80211_type_to_mac80211_type(enum nl802
- return IEEE80211_IF_TYPE_STA;
- case NL80211_IFTYPE_MONITOR:
- return IEEE80211_IF_TYPE_MNTR;
-+ case NL80211_IFTYPE_AP:
-+ return IEEE80211_IF_TYPE_AP;
-+ case NL80211_IFTYPE_AP_VLAN:
-+ return IEEE80211_IF_TYPE_VLAN;
- default:
- return IEEE80211_IF_TYPE_INVALID;
- }
+++ /dev/null
-/*
- * IEEE 802.11 defines
- *
- * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
- * <jkmaline@cc.hut.fi>
- * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
- * Copyright (c) 2005, Devicescape Software, Inc.
- * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef IEEE80211_H
-#define IEEE80211_H
-
-#include <linux/types.h>
-#include <asm/byteorder.h>
-
-#define FCS_LEN 4
-
-#define IEEE80211_FCTL_VERS 0x0003
-#define IEEE80211_FCTL_FTYPE 0x000c
-#define IEEE80211_FCTL_STYPE 0x00f0
-#define IEEE80211_FCTL_TODS 0x0100
-#define IEEE80211_FCTL_FROMDS 0x0200
-#define IEEE80211_FCTL_MOREFRAGS 0x0400
-#define IEEE80211_FCTL_RETRY 0x0800
-#define IEEE80211_FCTL_PM 0x1000
-#define IEEE80211_FCTL_MOREDATA 0x2000
-#define IEEE80211_FCTL_PROTECTED 0x4000
-#define IEEE80211_FCTL_ORDER 0x8000
-
-#define IEEE80211_SCTL_FRAG 0x000F
-#define IEEE80211_SCTL_SEQ 0xFFF0
-
-#define IEEE80211_FTYPE_MGMT 0x0000
-#define IEEE80211_FTYPE_CTL 0x0004
-#define IEEE80211_FTYPE_DATA 0x0008
-
-/* management */
-#define IEEE80211_STYPE_ASSOC_REQ 0x0000
-#define IEEE80211_STYPE_ASSOC_RESP 0x0010
-#define IEEE80211_STYPE_REASSOC_REQ 0x0020
-#define IEEE80211_STYPE_REASSOC_RESP 0x0030
-#define IEEE80211_STYPE_PROBE_REQ 0x0040
-#define IEEE80211_STYPE_PROBE_RESP 0x0050
-#define IEEE80211_STYPE_BEACON 0x0080
-#define IEEE80211_STYPE_ATIM 0x0090
-#define IEEE80211_STYPE_DISASSOC 0x00A0
-#define IEEE80211_STYPE_AUTH 0x00B0
-#define IEEE80211_STYPE_DEAUTH 0x00C0
-#define IEEE80211_STYPE_ACTION 0x00D0
-
-/* control */
-#define IEEE80211_STYPE_BACK_REQ 0x0080
-#define IEEE80211_STYPE_BACK 0x0090
-#define IEEE80211_STYPE_PSPOLL 0x00A0
-#define IEEE80211_STYPE_RTS 0x00B0
-#define IEEE80211_STYPE_CTS 0x00C0
-#define IEEE80211_STYPE_ACK 0x00D0
-#define IEEE80211_STYPE_CFEND 0x00E0
-#define IEEE80211_STYPE_CFENDACK 0x00F0
-
-/* data */
-#define IEEE80211_STYPE_DATA 0x0000
-#define IEEE80211_STYPE_DATA_CFACK 0x0010
-#define IEEE80211_STYPE_DATA_CFPOLL 0x0020
-#define IEEE80211_STYPE_DATA_CFACKPOLL 0x0030
-#define IEEE80211_STYPE_NULLFUNC 0x0040
-#define IEEE80211_STYPE_CFACK 0x0050
-#define IEEE80211_STYPE_CFPOLL 0x0060
-#define IEEE80211_STYPE_CFACKPOLL 0x0070
-#define IEEE80211_STYPE_QOS_DATA 0x0080
-#define IEEE80211_STYPE_QOS_DATA_CFACK 0x0090
-#define IEEE80211_STYPE_QOS_DATA_CFPOLL 0x00A0
-#define IEEE80211_STYPE_QOS_DATA_CFACKPOLL 0x00B0
-#define IEEE80211_STYPE_QOS_NULLFUNC 0x00C0
-#define IEEE80211_STYPE_QOS_CFACK 0x00D0
-#define IEEE80211_STYPE_QOS_CFPOLL 0x00E0
-#define IEEE80211_STYPE_QOS_CFACKPOLL 0x00F0
-
-
-/* miscellaneous IEEE 802.11 constants */
-#define IEEE80211_MAX_FRAG_THRESHOLD 2352
-#define IEEE80211_MAX_RTS_THRESHOLD 2353
-#define IEEE80211_MAX_AID 2007
-#define IEEE80211_MAX_TIM_LEN 251
-/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
- 6.2.1.1.2.
-
- 802.11e clarifies the figure in section 7.1.2. The frame body is
- up to 2304 octets long (maximum MSDU size) plus any crypt overhead. */
-#define IEEE80211_MAX_DATA_LEN 2304
-/* 30 byte 4 addr hdr, 2 byte QoS, 2304 byte MSDU, 12 byte crypt, 4 byte FCS */
-#define IEEE80211_MAX_FRAME_LEN 2352
-
-#define IEEE80211_MAX_SSID_LEN 32
-
-struct ieee80211_hdr {
- __le16 frame_control;
- __le16 duration_id;
- u8 addr1[6];
- u8 addr2[6];
- u8 addr3[6];
- __le16 seq_ctrl;
- u8 addr4[6];
-} __attribute__ ((packed));
-
-
-struct ieee80211_mgmt {
- __le16 frame_control;
- __le16 duration;
- u8 da[6];
- u8 sa[6];
- u8 bssid[6];
- __le16 seq_ctrl;
- union {
- struct {
- __le16 auth_alg;
- __le16 auth_transaction;
- __le16 status_code;
- /* possibly followed by Challenge text */
- u8 variable[0];
- } __attribute__ ((packed)) auth;
- struct {
- __le16 reason_code;
- } __attribute__ ((packed)) deauth;
- struct {
- __le16 capab_info;
- __le16 listen_interval;
- /* followed by SSID and Supported rates */
- u8 variable[0];
- } __attribute__ ((packed)) assoc_req;
- struct {
- __le16 capab_info;
- __le16 status_code;
- __le16 aid;
- /* followed by Supported rates */
- u8 variable[0];
- } __attribute__ ((packed)) assoc_resp, reassoc_resp;
- struct {
- __le16 capab_info;
- __le16 listen_interval;
- u8 current_ap[6];
- /* followed by SSID and Supported rates */
- u8 variable[0];
- } __attribute__ ((packed)) reassoc_req;
- struct {
- __le16 reason_code;
- } __attribute__ ((packed)) disassoc;
- struct {
- __le64 timestamp;
- __le16 beacon_int;
- __le16 capab_info;
- /* followed by some of SSID, Supported rates,
- * FH Params, DS Params, CF Params, IBSS Params, TIM */
- u8 variable[0];
- } __attribute__ ((packed)) beacon;
- struct {
- /* only variable items: SSID, Supported rates */
- u8 variable[0];
- } __attribute__ ((packed)) probe_req;
- struct {
- __le64 timestamp;
- __le16 beacon_int;
- __le16 capab_info;
- /* followed by some of SSID, Supported rates,
- * FH Params, DS Params, CF Params, IBSS Params */
- u8 variable[0];
- } __attribute__ ((packed)) probe_resp;
- struct {
- u8 category;
- union {
- struct {
- u8 action_code;
- u8 dialog_token;
- u8 status_code;
- u8 variable[0];
- } __attribute__ ((packed)) wme_action;
- struct{
- u8 action_code;
- u8 element_id;
- u8 length;
- u8 switch_mode;
- u8 new_chan;
- u8 switch_count;
- } __attribute__((packed)) chan_switch;
- struct{
- u8 action_code;
- u8 dialog_token;
- __le16 capab;
- __le16 timeout;
- __le16 start_seq_num;
- } __attribute__((packed)) addba_req;
- struct{
- u8 action_code;
- u8 dialog_token;
- __le16 status;
- __le16 capab;
- __le16 timeout;
- } __attribute__((packed)) addba_resp;
- struct{
- u8 action_code;
- __le16 params;
- __le16 reason_code;
- } __attribute__((packed)) delba;
- } u;
- } __attribute__ ((packed)) action;
- } u;
-} __attribute__ ((packed));
-
-
-/* Control frames */
-struct ieee80211_rts {
- __le16 frame_control;
- __le16 duration;
- u8 ra[6];
- u8 ta[6];
-} __attribute__ ((packed));
-
-struct ieee80211_cts {
- __le16 frame_control;
- __le16 duration;
- u8 ra[6];
-} __attribute__ ((packed));
-
-/**
- * struct ieee80211_bar - HT Block Ack Request
- *
- * This structure refers to "HT BlockAckReq" as
- * described in 802.11n draft section 7.2.1.7.1
- */
-struct ieee80211_bar {
- __le16 frame_control;
- __le16 duration;
- __u8 ra[6];
- __u8 ta[6];
- __le16 control;
- __le16 start_seq_num;
-} __attribute__((packed));
-
-/**
- * struct ieee80211_ht_cap - HT capabilities
- *
- * This structure refers to "HT capabilities element" as
- * described in 802.11n draft section 7.3.2.52
- */
-struct ieee80211_ht_cap {
- __le16 cap_info;
- u8 ampdu_params_info;
- u8 supp_mcs_set[16];
- __le16 extended_ht_cap_info;
- __le32 tx_BF_cap_info;
- u8 antenna_selection_info;
-} __attribute__ ((packed));
-
-/**
- * struct ieee80211_ht_cap - HT additional information
- *
- * This structure refers to "HT information element" as
- * described in 802.11n draft section 7.3.2.53
- */
-struct ieee80211_ht_addt_info {
- u8 control_chan;
- u8 ht_param;
- __le16 operation_mode;
- __le16 stbc_param;
- u8 basic_set[16];
-} __attribute__ ((packed));
-
-/* 802.11n HT capabilities masks */
-#define IEEE80211_HT_CAP_SUP_WIDTH 0x0002
-#define IEEE80211_HT_CAP_MIMO_PS 0x000C
-#define IEEE80211_HT_CAP_GRN_FLD 0x0010
-#define IEEE80211_HT_CAP_SGI_20 0x0020
-#define IEEE80211_HT_CAP_SGI_40 0x0040
-#define IEEE80211_HT_CAP_DELAY_BA 0x0400
-#define IEEE80211_HT_CAP_MAX_AMSDU 0x0800
-#define IEEE80211_HT_CAP_AMPDU_FACTOR 0x03
-#define IEEE80211_HT_CAP_AMPDU_DENSITY 0x1C
-/* 802.11n HT IE masks */
-#define IEEE80211_HT_IE_CHA_SEC_OFFSET 0x03
-#define IEEE80211_HT_IE_CHA_WIDTH 0x04
-#define IEEE80211_HT_IE_HT_PROTECTION 0x0003
-#define IEEE80211_HT_IE_NON_GF_STA_PRSNT 0x0004
-#define IEEE80211_HT_IE_NON_HT_STA_PRSNT 0x0010
-
-/* MIMO Power Save Modes */
-#define WLAN_HT_CAP_MIMO_PS_STATIC 0
-#define WLAN_HT_CAP_MIMO_PS_DYNAMIC 1
-#define WLAN_HT_CAP_MIMO_PS_INVALID 2
-#define WLAN_HT_CAP_MIMO_PS_DISABLED 3
-
-/* Authentication algorithms */
-#define WLAN_AUTH_OPEN 0
-#define WLAN_AUTH_SHARED_KEY 1
-#define WLAN_AUTH_FAST_BSS_TRANSITION 2
-#define WLAN_AUTH_LEAP 128
-
-#define WLAN_AUTH_CHALLENGE_LEN 128
-
-#define WLAN_CAPABILITY_ESS (1<<0)
-#define WLAN_CAPABILITY_IBSS (1<<1)
-#define WLAN_CAPABILITY_CF_POLLABLE (1<<2)
-#define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)
-#define WLAN_CAPABILITY_PRIVACY (1<<4)
-#define WLAN_CAPABILITY_SHORT_PREAMBLE (1<<5)
-#define WLAN_CAPABILITY_PBCC (1<<6)
-#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)
-/* 802.11h */
-#define WLAN_CAPABILITY_SPECTRUM_MGMT (1<<8)
-#define WLAN_CAPABILITY_QOS (1<<9)
-#define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)
-#define WLAN_CAPABILITY_DSSS_OFDM (1<<13)
-
-/* 802.11g ERP information element */
-#define WLAN_ERP_NON_ERP_PRESENT (1<<0)
-#define WLAN_ERP_USE_PROTECTION (1<<1)
-#define WLAN_ERP_BARKER_PREAMBLE (1<<2)
-
-/* WLAN_ERP_BARKER_PREAMBLE values */
-enum {
- WLAN_ERP_PREAMBLE_SHORT = 0,
- WLAN_ERP_PREAMBLE_LONG = 1,
-};
-
-/* Status codes */
-enum ieee80211_statuscode {
- WLAN_STATUS_SUCCESS = 0,
- WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
- WLAN_STATUS_CAPS_UNSUPPORTED = 10,
- WLAN_STATUS_REASSOC_NO_ASSOC = 11,
- WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
- WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
- WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
- WLAN_STATUS_CHALLENGE_FAIL = 15,
- WLAN_STATUS_AUTH_TIMEOUT = 16,
- WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
- WLAN_STATUS_ASSOC_DENIED_RATES = 18,
- /* 802.11b */
- WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
- WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
- WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
- /* 802.11h */
- WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
- WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
- WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
- /* 802.11g */
- WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
- WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
- /* 802.11i */
- WLAN_STATUS_INVALID_IE = 40,
- WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
- WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
- WLAN_STATUS_INVALID_AKMP = 43,
- WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
- WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
- WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
- /* 802.11e */
- WLAN_STATUS_UNSPECIFIED_QOS = 32,
- WLAN_STATUS_ASSOC_DENIED_NOBANDWIDTH = 33,
- WLAN_STATUS_ASSOC_DENIED_LOWACK = 34,
- WLAN_STATUS_ASSOC_DENIED_UNSUPP_QOS = 35,
- WLAN_STATUS_REQUEST_DECLINED = 37,
- WLAN_STATUS_INVALID_QOS_PARAM = 38,
- WLAN_STATUS_CHANGE_TSPEC = 39,
- WLAN_STATUS_WAIT_TS_DELAY = 47,
- WLAN_STATUS_NO_DIRECT_LINK = 48,
- WLAN_STATUS_STA_NOT_PRESENT = 49,
- WLAN_STATUS_STA_NOT_QSTA = 50,
-};
-
-
-/* Reason codes */
-enum ieee80211_reasoncode {
- WLAN_REASON_UNSPECIFIED = 1,
- WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
- WLAN_REASON_DEAUTH_LEAVING = 3,
- WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
- WLAN_REASON_DISASSOC_AP_BUSY = 5,
- WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
- WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
- WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
- WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
- /* 802.11h */
- WLAN_REASON_DISASSOC_BAD_POWER = 10,
- WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
- /* 802.11i */
- WLAN_REASON_INVALID_IE = 13,
- WLAN_REASON_MIC_FAILURE = 14,
- WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
- WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
- WLAN_REASON_IE_DIFFERENT = 17,
- WLAN_REASON_INVALID_GROUP_CIPHER = 18,
- WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
- WLAN_REASON_INVALID_AKMP = 20,
- WLAN_REASON_UNSUPP_RSN_VERSION = 21,
- WLAN_REASON_INVALID_RSN_IE_CAP = 22,
- WLAN_REASON_IEEE8021X_FAILED = 23,
- WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
- /* 802.11e */
- WLAN_REASON_DISASSOC_UNSPECIFIED_QOS = 32,
- WLAN_REASON_DISASSOC_QAP_NO_BANDWIDTH = 33,
- WLAN_REASON_DISASSOC_LOW_ACK = 34,
- WLAN_REASON_DISASSOC_QAP_EXCEED_TXOP = 35,
- WLAN_REASON_QSTA_LEAVE_QBSS = 36,
- WLAN_REASON_QSTA_NOT_USE = 37,
- WLAN_REASON_QSTA_REQUIRE_SETUP = 38,
- WLAN_REASON_QSTA_TIMEOUT = 39,
- WLAN_REASON_QSTA_CIPHER_NOT_SUPP = 45,
-};
-
-
-/* Information Element IDs */
-enum ieee80211_eid {
- WLAN_EID_SSID = 0,
- WLAN_EID_SUPP_RATES = 1,
- WLAN_EID_FH_PARAMS = 2,
- WLAN_EID_DS_PARAMS = 3,
- WLAN_EID_CF_PARAMS = 4,
- WLAN_EID_TIM = 5,
- WLAN_EID_IBSS_PARAMS = 6,
- WLAN_EID_CHALLENGE = 16,
- /* 802.11d */
- WLAN_EID_COUNTRY = 7,
- WLAN_EID_HP_PARAMS = 8,
- WLAN_EID_HP_TABLE = 9,
- WLAN_EID_REQUEST = 10,
- /* 802.11e */
- WLAN_EID_QBSS_LOAD = 11,
- WLAN_EID_EDCA_PARAM_SET = 12,
- WLAN_EID_TSPEC = 13,
- WLAN_EID_TCLAS = 14,
- WLAN_EID_SCHEDULE = 15,
- WLAN_EID_TS_DELAY = 43,
- WLAN_EID_TCLAS_PROCESSING = 44,
- WLAN_EID_QOS_CAPA = 46,
- /* 802.11h */
- WLAN_EID_PWR_CONSTRAINT = 32,
- WLAN_EID_PWR_CAPABILITY = 33,
- WLAN_EID_TPC_REQUEST = 34,
- WLAN_EID_TPC_REPORT = 35,
- WLAN_EID_SUPPORTED_CHANNELS = 36,
- WLAN_EID_CHANNEL_SWITCH = 37,
- WLAN_EID_MEASURE_REQUEST = 38,
- WLAN_EID_MEASURE_REPORT = 39,
- WLAN_EID_QUIET = 40,
- WLAN_EID_IBSS_DFS = 41,
- /* 802.11g */
- WLAN_EID_ERP_INFO = 42,
- WLAN_EID_EXT_SUPP_RATES = 50,
- /* 802.11n */
- WLAN_EID_HT_CAPABILITY = 45,
- WLAN_EID_HT_EXTRA_INFO = 61,
- /* 802.11i */
- WLAN_EID_RSN = 48,
- WLAN_EID_WPA = 221,
- WLAN_EID_GENERIC = 221,
- WLAN_EID_VENDOR_SPECIFIC = 221,
- WLAN_EID_QOS_PARAMETER = 222
-};
-
-/* Action category code */
-enum ieee80211_category {
- WLAN_CATEGORY_SPECTRUM_MGMT = 0,
- WLAN_CATEGORY_QOS = 1,
- WLAN_CATEGORY_DLS = 2,
- WLAN_CATEGORY_BACK = 3,
- WLAN_CATEGORY_WMM = 17,
-};
-
-/* BACK action code */
-enum ieee80211_back_actioncode {
- WLAN_ACTION_ADDBA_REQ = 0,
- WLAN_ACTION_ADDBA_RESP = 1,
- WLAN_ACTION_DELBA = 2,
-};
-
-/* BACK (block-ack) parties */
-enum ieee80211_back_parties {
- WLAN_BACK_RECIPIENT = 0,
- WLAN_BACK_INITIATOR = 1,
- WLAN_BACK_TIMER = 2,
-};
-
-/* A-MSDU 802.11n */
-#define IEEE80211_QOS_CONTROL_A_MSDU_PRESENT 0x0080
-
-/* cipher suite selectors */
-#define WLAN_CIPHER_SUITE_USE_GROUP 0x000FAC00
-#define WLAN_CIPHER_SUITE_WEP40 0x000FAC01
-#define WLAN_CIPHER_SUITE_TKIP 0x000FAC02
-/* reserved: 0x000FAC03 */
-#define WLAN_CIPHER_SUITE_CCMP 0x000FAC04
-#define WLAN_CIPHER_SUITE_WEP104 0x000FAC05
-
-#define WLAN_MAX_KEY_LEN 32
-
-/**
- * ieee80211_get_SA - get pointer to SA
- *
- * Given an 802.11 frame, this function returns the offset
- * to the source address (SA). It does not verify that the
- * header is long enough to contain the address, and the
- * header must be long enough to contain the frame control
- * field.
- *
- * @hdr: the frame
- */
-static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)
-{
- u8 *raw = (u8 *) hdr;
- u8 tofrom = (*(raw+1)) & 3; /* get the TODS and FROMDS bits */
-
- switch (tofrom) {
- case 2:
- return hdr->addr3;
- case 3:
- return hdr->addr4;
- }
- return hdr->addr2;
-}
-
-/**
- * ieee80211_get_DA - get pointer to DA
- *
- * Given an 802.11 frame, this function returns the offset
- * to the destination address (DA). It does not verify that
- * the header is long enough to contain the address, and the
- * header must be long enough to contain the frame control
- * field.
- *
- * @hdr: the frame
- */
-static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)
-{
- u8 *raw = (u8 *) hdr;
- u8 to_ds = (*(raw+1)) & 1; /* get the TODS bit */
-
- if (to_ds)
- return hdr->addr3;
- return hdr->addr1;
-}
-
-/**
- * ieee80211_get_morefrag - determine whether the MOREFRAGS bit is set
- *
- * This function determines whether the "more fragments" bit is set
- * in the frame.
- *
- * @hdr: the frame
- */
-static inline int ieee80211_get_morefrag(struct ieee80211_hdr *hdr)
-{
- return (le16_to_cpu(hdr->frame_control) &
- IEEE80211_FCTL_MOREFRAGS) != 0;
-}
-
-#endif /* IEEE80211_H */
+++ /dev/null
-#ifndef __LINUX_NL80211_H
-#define __LINUX_NL80211_H
-/*
- * 802.11 netlink interface public header
- *
- * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
- */
-
-/**
- * DOC: Station handling
- *
- * Stations are added per interface, but a special case exists with VLAN
- * interfaces. When a station is bound to an AP interface, it may be moved
- * into a VLAN identified by a VLAN interface index (%NL80211_ATTR_STA_VLAN).
- * The station is still assumed to belong to the AP interface it was added
- * to.
- *
- * TODO: need more info?
- */
-
-/**
- * enum nl80211_commands - supported nl80211 commands
- *
- * @NL80211_CMD_UNSPEC: unspecified command to catch errors
- *
- * @NL80211_CMD_GET_WIPHY: request information about a wiphy or dump request
- * to get a list of all present wiphys.
- * @NL80211_CMD_SET_WIPHY: set wiphy name, needs %NL80211_ATTR_WIPHY and
- * %NL80211_ATTR_WIPHY_NAME.
- * @NL80211_CMD_NEW_WIPHY: Newly created wiphy, response to get request
- * or rename notification. Has attributes %NL80211_ATTR_WIPHY and
- * %NL80211_ATTR_WIPHY_NAME.
- * @NL80211_CMD_DEL_WIPHY: Wiphy deleted. Has attributes
- * %NL80211_ATTR_WIPHY and %NL80211_ATTR_WIPHY_NAME.
- *
- * @NL80211_CMD_GET_INTERFACE: Request an interface's configuration;
- * either a dump request on a %NL80211_ATTR_WIPHY or a specific get
- * on an %NL80211_ATTR_IFINDEX is supported.
- * @NL80211_CMD_SET_INTERFACE: Set type of a virtual interface, requires
- * %NL80211_ATTR_IFINDEX and %NL80211_ATTR_IFTYPE.
- * @NL80211_CMD_NEW_INTERFACE: Newly created virtual interface or response
- * to %NL80211_CMD_GET_INTERFACE. Has %NL80211_ATTR_IFINDEX,
- * %NL80211_ATTR_WIPHY and %NL80211_ATTR_IFTYPE attributes. Can also
- * be sent from userspace to request creation of a new virtual interface,
- * then requires attributes %NL80211_ATTR_WIPHY, %NL80211_ATTR_IFTYPE and
- * %NL80211_ATTR_IFNAME.
- * @NL80211_CMD_DEL_INTERFACE: Virtual interface was deleted, has attributes
- * %NL80211_ATTR_IFINDEX and %NL80211_ATTR_WIPHY. Can also be sent from
- * userspace to request deletion of a virtual interface, then requires
- * attribute %NL80211_ATTR_IFINDEX.
- *
- * @NL80211_CMD_GET_KEY: Get sequence counter information for a key specified
- * by %NL80211_ATTR_KEY_IDX and/or %NL80211_ATTR_MAC.
- * @NL80211_CMD_SET_KEY: Set key attributes %NL80211_ATTR_KEY_DEFAULT or
- * %NL80211_ATTR_KEY_THRESHOLD.
- * @NL80211_CMD_NEW_KEY: add a key with given %NL80211_ATTR_KEY_DATA,
- * %NL80211_ATTR_KEY_IDX, %NL80211_ATTR_MAC and %NL80211_ATTR_KEY_CIPHER
- * attributes.
- * @NL80211_CMD_DEL_KEY: delete a key identified by %NL80211_ATTR_KEY_IDX
- * or %NL80211_ATTR_MAC.
- *
- * @NL80211_CMD_GET_BEACON: retrieve beacon information (returned in a
- * %NL80222_CMD_NEW_BEACON message)
- * @NL80211_CMD_SET_BEACON: set the beacon on an access point interface
- * using the %NL80211_ATTR_BEACON_INTERVAL, %NL80211_ATTR_DTIM_PERIOD,
- * %NL80211_BEACON_HEAD and %NL80211_BEACON_TAIL attributes.
- * @NL80211_CMD_NEW_BEACON: add a new beacon to an access point interface,
- * parameters are like for %NL80211_CMD_SET_BEACON.
- * @NL80211_CMD_DEL_BEACON: remove the beacon, stop sending it
- *
- * @NL80211_CMD_GET_STATION: Get station attributes for station identified by
- * %NL80211_ATTR_MAC on the interface identified by %NL80211_ATTR_IFINDEX.
- * @NL80211_CMD_SET_STATION: Set station attributes for station identified by
- * %NL80211_ATTR_MAC on the interface identified by %NL80211_ATTR_IFINDEX.
- * @NL80211_CMD_NEW_STATION: Add a station with given attributes to the
- * the interface identified by %NL80211_ATTR_IFINDEX.
- * @NL80211_CMD_DEL_STATION: Remove a station identified by %NL80211_ATTR_MAC
- * or, if no MAC address given, all stations, on the interface identified
- * by %NL80211_ATTR_IFINDEX.
- *
- * @NL80211_CMD_MAX: highest used command number
- * @__NL80211_CMD_AFTER_LAST: internal use
- */
-enum nl80211_commands {
-/* don't change the order or add anything inbetween, this is ABI! */
- NL80211_CMD_UNSPEC,
-
- NL80211_CMD_GET_WIPHY, /* can dump */
- NL80211_CMD_SET_WIPHY,
- NL80211_CMD_NEW_WIPHY,
- NL80211_CMD_DEL_WIPHY,
-
- NL80211_CMD_GET_INTERFACE, /* can dump */
- NL80211_CMD_SET_INTERFACE,
- NL80211_CMD_NEW_INTERFACE,
- NL80211_CMD_DEL_INTERFACE,
-
- NL80211_CMD_GET_KEY,
- NL80211_CMD_SET_KEY,
- NL80211_CMD_NEW_KEY,
- NL80211_CMD_DEL_KEY,
-
- NL80211_CMD_GET_BEACON,
- NL80211_CMD_SET_BEACON,
- NL80211_CMD_NEW_BEACON,
- NL80211_CMD_DEL_BEACON,
-
- NL80211_CMD_GET_STATION,
- NL80211_CMD_SET_STATION,
- NL80211_CMD_NEW_STATION,
- NL80211_CMD_DEL_STATION,
-
- /* add commands here */
-
- /* used to define NL80211_CMD_MAX below */
- __NL80211_CMD_AFTER_LAST,
- NL80211_CMD_MAX = __NL80211_CMD_AFTER_LAST - 1
-};
-
-
-/**
- * enum nl80211_attrs - nl80211 netlink attributes
- *
- * @NL80211_ATTR_UNSPEC: unspecified attribute to catch errors
- *
- * @NL80211_ATTR_WIPHY: index of wiphy to operate on, cf.
- * /sys/class/ieee80211/<phyname>/index
- * @NL80211_ATTR_WIPHY_NAME: wiphy name (used for renaming)
- *
- * @NL80211_ATTR_IFINDEX: network interface index of the device to operate on
- * @NL80211_ATTR_IFNAME: network interface name
- * @NL80211_ATTR_IFTYPE: type of virtual interface, see &enum nl80211_iftype
- *
- * @NL80211_ATTR_MAC: MAC address (various uses)
- *
- * @NL80211_ATTR_KEY_DATA: (temporal) key data; for TKIP this consists of
- * 16 bytes encryption key followed by 8 bytes each for TX and RX MIC
- * keys
- * @NL80211_ATTR_KEY_IDX: key ID (u8, 0-3)
- * @NL80211_ATTR_KEY_CIPHER: key cipher suite (u32, as defined by IEEE 802.11
- * section 7.3.2.25.1, e.g. 0x000FAC04)
- * @NL80211_ATTR_KEY_SEQ: transmit key sequence number (IV/PN) for TKIP and
- * CCMP keys, each six bytes in little endian
- *
- * @NL80211_ATTR_BEACON_INTERVAL: beacon interval in TU
- * @NL80211_ATTR_DTIM_PERIOD: DTIM period for beaconing
- * @NL80211_ATTR_BEACON_HEAD: portion of the beacon before the TIM IE
- * @NL80211_ATTR_BEACON_TAIL: portion of the beacon after the TIM IE
- *
- * @NL80211_ATTR_STA_AID: Association ID for the station (u16)
- * @NL80211_ATTR_STA_FLAGS: flags, nested element with NLA_FLAG attributes of
- * &enum nl80211_sta_flags.
- * @NL80211_ATTR_STA_LISTEN_INTERVAL: listen interval as defined by
- * IEEE 802.11 7.3.1.6 (u16).
- * @NL80211_ATTR_STA_SUPPORTED_RATES: supported rates, array of supported
- * rates as defined by IEEE 802.11 7.3.2.2 but without the length
- * restriction (at most %NL80211_MAX_SUPP_RATES).
- * @NL80211_ATTR_STA_VLAN: interface index of VLAN interface to move station
- * to, or the AP interface the station was originally added to to.
- * @NL80211_ATTR_STA_STATS: statistics for a station, part of station info
- * given for %NL80211_CMD_GET_STATION, nested attribute containing
- * info as possible, see &enum nl80211_sta_stats.
- *
- * @NL80211_ATTR_WIPHY_BANDS: Information about an operating bands,
- * consisting of a nested array.
- *
- * @NL80211_ATTR_MNTR_FLAGS: flags, nested element with NLA_FLAG attributes of
- * &enum nl80211_mntr_flags.
- *
- * @NL80211_ATTR_MAX: highest attribute number currently defined
- * @__NL80211_ATTR_AFTER_LAST: internal use
- */
-enum nl80211_attrs {
-/* don't change the order or add anything inbetween, this is ABI! */
- NL80211_ATTR_UNSPEC,
-
- NL80211_ATTR_WIPHY,
- NL80211_ATTR_WIPHY_NAME,
-
- NL80211_ATTR_IFINDEX,
- NL80211_ATTR_IFNAME,
- NL80211_ATTR_IFTYPE,
-
- NL80211_ATTR_MAC,
-
- NL80211_ATTR_KEY_DATA,
- NL80211_ATTR_KEY_IDX,
- NL80211_ATTR_KEY_CIPHER,
- NL80211_ATTR_KEY_SEQ,
- NL80211_ATTR_KEY_DEFAULT,
-
- NL80211_ATTR_BEACON_INTERVAL,
- NL80211_ATTR_DTIM_PERIOD,
- NL80211_ATTR_BEACON_HEAD,
- NL80211_ATTR_BEACON_TAIL,
-
- NL80211_ATTR_STA_AID,
- NL80211_ATTR_STA_FLAGS,
- NL80211_ATTR_STA_LISTEN_INTERVAL,
- NL80211_ATTR_STA_SUPPORTED_RATES,
- NL80211_ATTR_STA_VLAN,
- NL80211_ATTR_STA_STATS,
-
- NL80211_ATTR_WIPHY_BANDS,
-
- NL80211_ATTR_MNTR_FLAGS,
-
- /* add attributes here, update the policy in nl80211.c */
-
- __NL80211_ATTR_AFTER_LAST,
- NL80211_ATTR_MAX = __NL80211_ATTR_AFTER_LAST - 1
-};
-
-#define NL80211_MAX_SUPP_RATES 32
-
-/**
- * enum nl80211_iftype - (virtual) interface types
- *
- * @NL80211_IFTYPE_UNSPECIFIED: unspecified type, driver decides
- * @NL80211_IFTYPE_ADHOC: independent BSS member
- * @NL80211_IFTYPE_STATION: managed BSS member
- * @NL80211_IFTYPE_AP: access point
- * @NL80211_IFTYPE_AP_VLAN: VLAN interface for access points
- * @NL80211_IFTYPE_WDS: wireless distribution interface
- * @NL80211_IFTYPE_MONITOR: monitor interface receiving all frames
- * @NL80211_IFTYPE_MAX: highest interface type number currently defined
- * @__NL80211_IFTYPE_AFTER_LAST: internal use
- *
- * These values are used with the %NL80211_ATTR_IFTYPE
- * to set the type of an interface.
- *
- */
-enum nl80211_iftype {
- NL80211_IFTYPE_UNSPECIFIED,
- NL80211_IFTYPE_ADHOC,
- NL80211_IFTYPE_STATION,
- NL80211_IFTYPE_AP,
- NL80211_IFTYPE_AP_VLAN,
- NL80211_IFTYPE_WDS,
- NL80211_IFTYPE_MONITOR,
-
- /* keep last */
- __NL80211_IFTYPE_AFTER_LAST,
- NL80211_IFTYPE_MAX = __NL80211_IFTYPE_AFTER_LAST - 1
-};
-
-/**
- * enum nl80211_sta_flags - station flags
- *
- * Station flags. When a station is added to an AP interface, it is
- * assumed to be already associated (and hence authenticated.)
- *
- * @NL80211_STA_FLAG_AUTHORIZED: station is authorized (802.1X)
- * @NL80211_STA_FLAG_SHORT_PREAMBLE: station is capable of receiving frames
- * with short barker preamble
- * @NL80211_STA_FLAG_WME: station is WME/QoS capable
- */
-enum nl80211_sta_flags {
- __NL80211_STA_FLAG_INVALID,
- NL80211_STA_FLAG_AUTHORIZED,
- NL80211_STA_FLAG_SHORT_PREAMBLE,
- NL80211_STA_FLAG_WME,
-
- /* keep last */
- __NL80211_STA_FLAG_AFTER_LAST,
- NL80211_STA_FLAG_MAX = __NL80211_STA_FLAG_AFTER_LAST - 1
-};
-
-/**
- * enum nl80211_sta_stats - station statistics
- *
- * These attribute types are used with %NL80211_ATTR_STA_STATS
- * when getting information about a station.
- *
- * @__NL80211_STA_STAT_INVALID: attribute number 0 is reserved
- * @NL80211_STA_STAT_INACTIVE_TIME: time since last activity (u32, msecs)
- * @NL80211_STA_STAT_RX_BYTES: total received bytes (u32, from this station)
- * @NL80211_STA_STAT_TX_BYTES: total transmitted bytes (u32, to this station)
- * @__NL80211_STA_STAT_AFTER_LAST: internal
- * @NL80211_STA_STAT_MAX: highest possible station stats attribute
- */
-enum nl80211_sta_stats {
- __NL80211_STA_STAT_INVALID,
- NL80211_STA_STAT_INACTIVE_TIME,
- NL80211_STA_STAT_RX_BYTES,
- NL80211_STA_STAT_TX_BYTES,
-
- /* keep last */
- __NL80211_STA_STAT_AFTER_LAST,
- NL80211_STA_STAT_MAX = __NL80211_STA_STAT_AFTER_LAST - 1
-};
-
-/**
- * enum nl80211_band_attr - band attributes
- * @__NL80211_BAND_ATTR_INVALID: attribute number 0 is reserved
- * @NL80211_BAND_ATTR_FREQS: supported frequencies in this band,
- * an array of nested frequency attributes
- * @NL80211_BAND_ATTR_RATES: supported bitrates in this band,
- * an array of nested bitrate attributes
- */
-enum nl80211_band_attr {
- __NL80211_BAND_ATTR_INVALID,
- NL80211_BAND_ATTR_FREQS,
- NL80211_BAND_ATTR_RATES,
-
- /* keep last */
- __NL80211_BAND_ATTR_AFTER_LAST,
- NL80211_BAND_ATTR_MAX = __NL80211_BAND_ATTR_AFTER_LAST - 1
-};
-
-/**
- * enum nl80211_frequency_attr - frequency attributes
- * @NL80211_FREQUENCY_ATTR_FREQ: Frequency in MHz
- * @NL80211_FREQUENCY_ATTR_DISABLED: Channel is disabled in current
- * regulatory domain.
- * @NL80211_FREQUENCY_ATTR_PASSIVE_SCAN: Only passive scanning is
- * permitted on this channel in current regulatory domain.
- * @NL80211_FREQUENCY_ATTR_NO_IBSS: IBSS networks are not permitted
- * on this channel in current regulatory domain.
- * @NL80211_FREQUENCY_ATTR_RADAR: Radar detection is mandatory
- * on this channel in current regulatory domain.
- */
-enum nl80211_frequency_attr {
- __NL80211_FREQUENCY_ATTR_INVALID,
- NL80211_FREQUENCY_ATTR_FREQ,
- NL80211_FREQUENCY_ATTR_DISABLED,
- NL80211_FREQUENCY_ATTR_PASSIVE_SCAN,
- NL80211_FREQUENCY_ATTR_NO_IBSS,
- NL80211_FREQUENCY_ATTR_RADAR,
-
- /* keep last */
- __NL80211_FREQUENCY_ATTR_AFTER_LAST,
- NL80211_FREQUENCY_ATTR_MAX = __NL80211_FREQUENCY_ATTR_AFTER_LAST - 1
-};
-
-/**
- * enum nl80211_bitrate_attr - bitrate attributes
- * @NL80211_BITRATE_ATTR_RATE: Bitrate in units of 100 kbps
- * @NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE: Short preamble supported
- * in 2.4 GHz band.
- */
-enum nl80211_bitrate_attr {
- __NL80211_BITRATE_ATTR_INVALID,
- NL80211_BITRATE_ATTR_RATE,
- NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE,
-
- /* keep last */
- __NL80211_BITRATE_ATTR_AFTER_LAST,
- NL80211_BITRATE_ATTR_MAX = __NL80211_BITRATE_ATTR_AFTER_LAST - 1
-};
-
-/**
- * enum nl80211_mntr_flags - monitor configuration flags
- *
- * Monitor configuration flags.
- *
- * @__NL80211_MNTR_FLAG_INVALID: reserved
- *
- * @NL80211_MNTR_FLAG_FCSFAIL: pass frames with bad FCS
- * @NL80211_MNTR_FLAG_PLCPFAIL: pass frames with bad PLCP
- * @NL80211_MNTR_FLAG_CONTROL: pass control frames
- * @NL80211_MNTR_FLAG_OTHER_BSS: disable BSSID filtering
- * @NL80211_MNTR_FLAG_COOK_FRAMES: report frames after processing.
- * overrides all other flags.
- *
- * @__NL80211_MNTR_FLAG_AFTER_LAST: internal use
- * @NL80211_MNTR_FLAG_MAX: highest possible monitor flag
- */
-enum nl80211_mntr_flags {
- __NL80211_MNTR_FLAG_INVALID,
- NL80211_MNTR_FLAG_FCSFAIL,
- NL80211_MNTR_FLAG_PLCPFAIL,
- NL80211_MNTR_FLAG_CONTROL,
- NL80211_MNTR_FLAG_OTHER_BSS,
- NL80211_MNTR_FLAG_COOK_FRAMES,
-
- /* keep last */
- __NL80211_MNTR_FLAG_AFTER_LAST,
- NL80211_MNTR_FLAG_MAX = __NL80211_MNTR_FLAG_AFTER_LAST - 1
-};
-
-#endif /* __LINUX_NL80211_H */
+++ /dev/null
-#ifndef __NET_CFG80211_H
-#define __NET_CFG80211_H
-
-#include <linux/netlink.h>
-#include <linux/skbuff.h>
-#include <linux/nl80211.h>
-#include <net/genetlink.h>
-
-/*
- * 802.11 configuration in-kernel interface
- *
- * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
- */
-
-/* Radiotap header iteration
- * implemented in net/wireless/radiotap.c
- * docs in Documentation/networking/radiotap-headers.txt
- */
-/**
- * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
- * @rtheader: pointer to the radiotap header we are walking through
- * @max_length: length of radiotap header in cpu byte ordering
- * @this_arg_index: IEEE80211_RADIOTAP_... index of current arg
- * @this_arg: pointer to current radiotap arg
- * @arg_index: internal next argument index
- * @arg: internal next argument pointer
- * @next_bitmap: internal pointer to next present u32
- * @bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
- */
-
-struct ieee80211_radiotap_iterator {
- struct ieee80211_radiotap_header *rtheader;
- int max_length;
- int this_arg_index;
- u8 *this_arg;
-
- int arg_index;
- u8 *arg;
- __le32 *next_bitmap;
- u32 bitmap_shifter;
-};
-
-extern int ieee80211_radiotap_iterator_init(
- struct ieee80211_radiotap_iterator *iterator,
- struct ieee80211_radiotap_header *radiotap_header,
- int max_length);
-
-extern int ieee80211_radiotap_iterator_next(
- struct ieee80211_radiotap_iterator *iterator);
-
-
- /**
- * struct key_params - key information
- *
- * Information about a key
- *
- * @key: key material
- * @key_len: length of key material
- * @cipher: cipher suite selector
- * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
- * with the get_key() callback, must be in little endian,
- * length given by @seq_len.
- */
-struct key_params {
- u8 *key;
- u8 *seq;
- int key_len;
- int seq_len;
- u32 cipher;
-};
-
-/**
- * struct beacon_parameters - beacon parameters
- *
- * Used to configure the beacon for an interface.
- *
- * @head: head portion of beacon (before TIM IE)
- * or %NULL if not changed
- * @tail: tail portion of beacon (after TIM IE)
- * or %NULL if not changed
- * @interval: beacon interval or zero if not changed
- * @dtim_period: DTIM period or zero if not changed
- * @head_len: length of @head
- * @tail_len: length of @tail
- */
-struct beacon_parameters {
- u8 *head, *tail;
- int interval, dtim_period;
- int head_len, tail_len;
-};
-
-/**
- * enum station_flags - station flags
- *
- * Station capability flags. Note that these must be the bits
- * according to the nl80211 flags.
- *
- * @STATION_FLAG_CHANGED: station flags were changed
- * @STATION_FLAG_AUTHORIZED: station is authorized to send frames (802.1X)
- * @STATION_FLAG_SHORT_PREAMBLE: station is capable of receiving frames
- * with short preambles
- * @STATION_FLAG_WME: station is WME/QoS capable
- */
-enum station_flags {
- STATION_FLAG_CHANGED = 1<<0,
- STATION_FLAG_AUTHORIZED = 1<<NL80211_STA_FLAG_AUTHORIZED,
- STATION_FLAG_SHORT_PREAMBLE = 1<<NL80211_STA_FLAG_SHORT_PREAMBLE,
- STATION_FLAG_WME = 1<<NL80211_STA_FLAG_WME,
-};
-
-/**
- * struct station_parameters - station parameters
- *
- * Used to change and create a new station.
- *
- * @vlan: vlan interface station should belong to
- * @supported_rates: supported rates in IEEE 802.11 format
- * (or NULL for no change)
- * @supported_rates_len: number of supported rates
- * @station_flags: station flags (see &enum station_flags)
- * @listen_interval: listen interval or -1 for no change
- * @aid: AID or zero for no change
- */
-struct station_parameters {
- u8 *supported_rates;
- struct net_device *vlan;
- u32 station_flags;
- int listen_interval;
- u16 aid;
- u8 supported_rates_len;
-};
-
-/**
- * enum station_stats_flags - station statistics flags
- *
- * Used by the driver to indicate which info in &struct station_stats
- * it has filled in during get_station().
- *
- * @STATION_STAT_INACTIVE_TIME: @inactive_time filled
- * @STATION_STAT_RX_BYTES: @rx_bytes filled
- * @STATION_STAT_TX_BYTES: @tx_bytes filled
- */
-enum station_stats_flags {
- STATION_STAT_INACTIVE_TIME = 1<<0,
- STATION_STAT_RX_BYTES = 1<<1,
- STATION_STAT_TX_BYTES = 1<<2,
-};
-
-/**
- * struct station_stats - station statistics
- *
- * Station information filled by driver for get_station().
- *
- * @filled: bitflag of flags from &enum station_stats_flags
- * @inactive_time: time since last station activity (tx/rx) in milliseconds
- * @rx_bytes: bytes received from this station
- * @tx_bytes: bytes transmitted to this station
- */
-struct station_stats {
- u32 filled;
- u32 inactive_time;
- u32 rx_bytes;
- u32 tx_bytes;
-};
-
-/**
- * enum monitor_flags - monitor flags
- *
- * Monitor interface configuration flags. Note that these must be the bits
- * according to the nl80211 flags.
- *
- * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
- * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
- * @MONITOR_FLAG_CONTROL: pass control frames
- * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
- * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
- */
-enum monitor_flags {
- MONITOR_FLAG_FCSFAIL = 1<<NL80211_MNTR_FLAG_FCSFAIL,
- MONITOR_FLAG_PLCPFAIL = 1<<NL80211_MNTR_FLAG_PLCPFAIL,
- MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL,
- MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS,
- MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
-};
-
-/* from net/wireless.h */
-struct wiphy;
-
-/**
- * struct cfg80211_ops - backend description for wireless configuration
- *
- * This struct is registered by fullmac card drivers and/or wireless stacks
- * in order to handle configuration requests on their interfaces.
- *
- * All callbacks except where otherwise noted should return 0
- * on success or a negative error code.
- *
- * All operations are currently invoked under rtnl for consistency with the
- * wireless extensions but this is subject to reevaluation as soon as this
- * code is used more widely and we have a first user without wext.
- *
- * @add_virtual_intf: create a new virtual interface with the given name
- *
- * @del_virtual_intf: remove the virtual interface determined by ifindex.
- *
- * @change_virtual_intf: change type of virtual interface
- *
- * @add_key: add a key with the given parameters. @mac_addr will be %NULL
- * when adding a group key.
- *
- * @get_key: get information about the key with the given parameters.
- * @mac_addr will be %NULL when requesting information for a group
- * key. All pointers given to the @callback function need not be valid
- * after it returns.
- *
- * @del_key: remove a key given the @mac_addr (%NULL for a group key)
- * and @key_index
- *
- * @set_default_key: set the default key on an interface
- *
- * @add_beacon: Add a beacon with given parameters, @head, @interval
- * and @dtim_period will be valid, @tail is optional.
- * @set_beacon: Change the beacon parameters for an access point mode
- * interface. This should reject the call when no beacon has been
- * configured.
- * @del_beacon: Remove beacon configuration and stop sending the beacon.
- *
- * @add_station: Add a new station.
- *
- * @del_station: Remove a station; @mac may be NULL to remove all stations.
- *
- * @change_station: Modify a given station.
- */
-struct cfg80211_ops {
- int (*add_virtual_intf)(struct wiphy *wiphy, char *name,
- enum nl80211_iftype type, u32 *flags);
- int (*del_virtual_intf)(struct wiphy *wiphy, int ifindex);
- int (*change_virtual_intf)(struct wiphy *wiphy, int ifindex,
- enum nl80211_iftype type, u32 *flags);
-
- int (*add_key)(struct wiphy *wiphy, struct net_device *netdev,
- u8 key_index, u8 *mac_addr,
- struct key_params *params);
- int (*get_key)(struct wiphy *wiphy, struct net_device *netdev,
- u8 key_index, u8 *mac_addr, void *cookie,
- void (*callback)(void *cookie, struct key_params*));
- int (*del_key)(struct wiphy *wiphy, struct net_device *netdev,
- u8 key_index, u8 *mac_addr);
- int (*set_default_key)(struct wiphy *wiphy,
- struct net_device *netdev,
- u8 key_index);
-
- int (*add_beacon)(struct wiphy *wiphy, struct net_device *dev,
- struct beacon_parameters *info);
- int (*set_beacon)(struct wiphy *wiphy, struct net_device *dev,
- struct beacon_parameters *info);
- int (*del_beacon)(struct wiphy *wiphy, struct net_device *dev);
-
-
- int (*add_station)(struct wiphy *wiphy, struct net_device *dev,
- u8 *mac, struct station_parameters *params);
- int (*del_station)(struct wiphy *wiphy, struct net_device *dev,
- u8 *mac);
- int (*change_station)(struct wiphy *wiphy, struct net_device *dev,
- u8 *mac, struct station_parameters *params);
- int (*get_station)(struct wiphy *wiphy, struct net_device *dev,
- u8 *mac, struct station_stats *stats);
-};
-
-#endif /* __NET_CFG80211_H */
+++ /dev/null
-/* $FreeBSD: src/sys/net80211/ieee80211_radiotap.h,v 1.5 2005/01/22 20:12:05 sam Exp $ */
-/* $NetBSD: ieee80211_radiotap.h,v 1.11 2005/06/22 06:16:02 dyoung Exp $ */
-
-/*-
- * Copyright (c) 2003, 2004 David Young. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. The name of David Young may not be used to endorse or promote
- * products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY DAVID YOUNG ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
- * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DAVID
- * YOUNG BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
- * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
- * OF SUCH DAMAGE.
- */
-
-/*
- * Modifications to fit into the linux IEEE 802.11 stack,
- * Mike Kershaw (dragorn@kismetwireless.net)
- */
-
-#ifndef IEEE80211RADIOTAP_H
-#define IEEE80211RADIOTAP_H
-
-#include <linux/if_ether.h>
-#include <linux/kernel.h>
-#include <asm/unaligned.h>
-
-/* Radiotap header version (from official NetBSD feed) */
-#define IEEE80211RADIOTAP_VERSION "1.5"
-/* Base version of the radiotap packet header data */
-#define PKTHDR_RADIOTAP_VERSION 0
-
-/* A generic radio capture format is desirable. There is one for
- * Linux, but it is neither rigidly defined (there were not even
- * units given for some fields) nor easily extensible.
- *
- * I suggest the following extensible radio capture format. It is
- * based on a bitmap indicating which fields are present.
- *
- * I am trying to describe precisely what the application programmer
- * should expect in the following, and for that reason I tell the
- * units and origin of each measurement (where it applies), or else I
- * use sufficiently weaselly language ("is a monotonically nondecreasing
- * function of...") that I cannot set false expectations for lawyerly
- * readers.
- */
-
-/* XXX tcpdump/libpcap do not tolerate variable-length headers,
- * yet, so we pad every radiotap header to 64 bytes. Ugh.
- */
-#define IEEE80211_RADIOTAP_HDRLEN 64
-
-/* The radio capture header precedes the 802.11 header.
- * All data in the header is little endian on all platforms.
- */
-struct ieee80211_radiotap_header {
- u8 it_version; /* Version 0. Only increases
- * for drastic changes,
- * introduction of compatible
- * new fields does not count.
- */
- u8 it_pad;
- __le16 it_len; /* length of the whole
- * header in bytes, including
- * it_version, it_pad,
- * it_len, and data fields.
- */
- __le32 it_present; /* A bitmap telling which
- * fields are present. Set bit 31
- * (0x80000000) to extend the
- * bitmap by another 32 bits.
- * Additional extensions are made
- * by setting bit 31.
- */
-};
-
-/* Name Data type Units
- * ---- --------- -----
- *
- * IEEE80211_RADIOTAP_TSFT __le64 microseconds
- *
- * Value in microseconds of the MAC's 64-bit 802.11 Time
- * Synchronization Function timer when the first bit of the
- * MPDU arrived at the MAC. For received frames, only.
- *
- * IEEE80211_RADIOTAP_CHANNEL 2 x __le16 MHz, bitmap
- *
- * Tx/Rx frequency in MHz, followed by flags (see below).
- *
- * IEEE80211_RADIOTAP_FHSS __le16 see below
- *
- * For frequency-hopping radios, the hop set (first byte)
- * and pattern (second byte).
- *
- * IEEE80211_RADIOTAP_RATE u8 500kb/s
- *
- * Tx/Rx data rate
- *
- * IEEE80211_RADIOTAP_DBM_ANTSIGNAL s8 decibels from
- * one milliwatt (dBm)
- *
- * RF signal power at the antenna, decibel difference from
- * one milliwatt.
- *
- * IEEE80211_RADIOTAP_DBM_ANTNOISE s8 decibels from
- * one milliwatt (dBm)
- *
- * RF noise power at the antenna, decibel difference from one
- * milliwatt.
- *
- * IEEE80211_RADIOTAP_DB_ANTSIGNAL u8 decibel (dB)
- *
- * RF signal power at the antenna, decibel difference from an
- * arbitrary, fixed reference.
- *
- * IEEE80211_RADIOTAP_DB_ANTNOISE u8 decibel (dB)
- *
- * RF noise power at the antenna, decibel difference from an
- * arbitrary, fixed reference point.
- *
- * IEEE80211_RADIOTAP_LOCK_QUALITY __le16 unitless
- *
- * Quality of Barker code lock. Unitless. Monotonically
- * nondecreasing with "better" lock strength. Called "Signal
- * Quality" in datasheets. (Is there a standard way to measure
- * this?)
- *
- * IEEE80211_RADIOTAP_TX_ATTENUATION __le16 unitless
- *
- * Transmit power expressed as unitless distance from max
- * power set at factory calibration. 0 is max power.
- * Monotonically nondecreasing with lower power levels.
- *
- * IEEE80211_RADIOTAP_DB_TX_ATTENUATION __le16 decibels (dB)
- *
- * Transmit power expressed as decibel distance from max power
- * set at factory calibration. 0 is max power. Monotonically
- * nondecreasing with lower power levels.
- *
- * IEEE80211_RADIOTAP_DBM_TX_POWER s8 decibels from
- * one milliwatt (dBm)
- *
- * Transmit power expressed as dBm (decibels from a 1 milliwatt
- * reference). This is the absolute power level measured at
- * the antenna port.
- *
- * IEEE80211_RADIOTAP_FLAGS u8 bitmap
- *
- * Properties of transmitted and received frames. See flags
- * defined below.
- *
- * IEEE80211_RADIOTAP_ANTENNA u8 antenna index
- *
- * Unitless indication of the Rx/Tx antenna for this packet.
- * The first antenna is antenna 0.
- *
- * IEEE80211_RADIOTAP_RX_FLAGS __le16 bitmap
- *
- * Properties of received frames. See flags defined below.
- *
- * IEEE80211_RADIOTAP_TX_FLAGS __le16 bitmap
- *
- * Properties of transmitted frames. See flags defined below.
- *
- * IEEE80211_RADIOTAP_RTS_RETRIES u8 data
- *
- * Number of rts retries a transmitted frame used.
- *
- * IEEE80211_RADIOTAP_DATA_RETRIES u8 data
- *
- * Number of unicast retries a transmitted frame used.
- *
- */
-enum ieee80211_radiotap_type {
- IEEE80211_RADIOTAP_TSFT = 0,
- IEEE80211_RADIOTAP_FLAGS = 1,
- IEEE80211_RADIOTAP_RATE = 2,
- IEEE80211_RADIOTAP_CHANNEL = 3,
- IEEE80211_RADIOTAP_FHSS = 4,
- IEEE80211_RADIOTAP_DBM_ANTSIGNAL = 5,
- IEEE80211_RADIOTAP_DBM_ANTNOISE = 6,
- IEEE80211_RADIOTAP_LOCK_QUALITY = 7,
- IEEE80211_RADIOTAP_TX_ATTENUATION = 8,
- IEEE80211_RADIOTAP_DB_TX_ATTENUATION = 9,
- IEEE80211_RADIOTAP_DBM_TX_POWER = 10,
- IEEE80211_RADIOTAP_ANTENNA = 11,
- IEEE80211_RADIOTAP_DB_ANTSIGNAL = 12,
- IEEE80211_RADIOTAP_DB_ANTNOISE = 13,
- IEEE80211_RADIOTAP_RX_FLAGS = 14,
- IEEE80211_RADIOTAP_TX_FLAGS = 15,
- IEEE80211_RADIOTAP_RTS_RETRIES = 16,
- IEEE80211_RADIOTAP_DATA_RETRIES = 17,
- IEEE80211_RADIOTAP_EXT = 31
-};
-
-/* Channel flags. */
-#define IEEE80211_CHAN_TURBO 0x0010 /* Turbo channel */
-#define IEEE80211_CHAN_CCK 0x0020 /* CCK channel */
-#define IEEE80211_CHAN_OFDM 0x0040 /* OFDM channel */
-#define IEEE80211_CHAN_2GHZ 0x0080 /* 2 GHz spectrum channel. */
-#define IEEE80211_CHAN_5GHZ 0x0100 /* 5 GHz spectrum channel */
-#define IEEE80211_CHAN_PASSIVE 0x0200 /* Only passive scan allowed */
-#define IEEE80211_CHAN_DYN 0x0400 /* Dynamic CCK-OFDM channel */
-#define IEEE80211_CHAN_GFSK 0x0800 /* GFSK channel (FHSS PHY) */
-
-/* For IEEE80211_RADIOTAP_FLAGS */
-#define IEEE80211_RADIOTAP_F_CFP 0x01 /* sent/received
- * during CFP
- */
-#define IEEE80211_RADIOTAP_F_SHORTPRE 0x02 /* sent/received
- * with short
- * preamble
- */
-#define IEEE80211_RADIOTAP_F_WEP 0x04 /* sent/received
- * with WEP encryption
- */
-#define IEEE80211_RADIOTAP_F_FRAG 0x08 /* sent/received
- * with fragmentation
- */
-#define IEEE80211_RADIOTAP_F_FCS 0x10 /* frame includes FCS */
-#define IEEE80211_RADIOTAP_F_DATAPAD 0x20 /* frame has padding between
- * 802.11 header and payload
- * (to 32-bit boundary)
- */
-/* For IEEE80211_RADIOTAP_RX_FLAGS */
-#define IEEE80211_RADIOTAP_F_RX_BADFCS 0x0001 /* frame failed crc check */
-
-/* For IEEE80211_RADIOTAP_TX_FLAGS */
-#define IEEE80211_RADIOTAP_F_TX_FAIL 0x0001 /* failed due to excessive
- * retries */
-#define IEEE80211_RADIOTAP_F_TX_CTS 0x0002 /* used cts 'protection' */
-#define IEEE80211_RADIOTAP_F_TX_RTS 0x0004 /* used rts/cts handshake */
-
-/* Ugly macro to convert literal channel numbers into their mhz equivalents
- * There are certianly some conditions that will break this (like feeding it '30')
- * but they shouldn't arise since nothing talks on channel 30. */
-#define ieee80211chan2mhz(x) \
- (((x) <= 14) ? \
- (((x) == 14) ? 2484 : ((x) * 5) + 2407) : \
- ((x) + 1000) * 5)
-
-/* helpers */
-static inline int ieee80211_get_radiotap_len(unsigned char *data)
-{
- struct ieee80211_radiotap_header *hdr =
- (struct ieee80211_radiotap_header *)data;
-
- return le16_to_cpu(get_unaligned(&hdr->it_len));
-}
-
-#endif /* IEEE80211_RADIOTAP_H */
+++ /dev/null
-/*
- * mac80211 <-> driver interface
- *
- * Copyright 2002-2005, Devicescape Software, Inc.
- * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef MAC80211_H
-#define MAC80211_H
-
-#include <linux/kernel.h>
-#include <linux/if_ether.h>
-#include <linux/skbuff.h>
-#include <linux/wireless.h>
-#include <linux/device.h>
-#include <linux/ieee80211.h>
-#include <net/wireless.h>
-#include <net/cfg80211.h>
-
-/**
- * DOC: Introduction
- *
- * mac80211 is the Linux stack for 802.11 hardware that implements
- * only partial functionality in hard- or firmware. This document
- * defines the interface between mac80211 and low-level hardware
- * drivers.
- */
-
-/**
- * DOC: Calling mac80211 from interrupts
- *
- * Only ieee80211_tx_status_irqsafe() and ieee80211_rx_irqsafe() can be
- * called in hardware interrupt context. The low-level driver must not call any
- * other functions in hardware interrupt context. If there is a need for such
- * call, the low-level driver should first ACK the interrupt and perform the
- * IEEE 802.11 code call after this, e.g. from a scheduled workqueue function.
- */
-
-/**
- * DOC: Warning
- *
- * If you're reading this document and not the header file itself, it will
- * be incomplete because not all documentation has been converted yet.
- */
-
-/**
- * DOC: Frame format
- *
- * As a general rule, when frames are passed between mac80211 and the driver,
- * they start with the IEEE 802.11 header and include the same octets that are
- * sent over the air except for the FCS which should be calculated by the
- * hardware.
- *
- * There are, however, various exceptions to this rule for advanced features:
- *
- * The first exception is for hardware encryption and decryption offload
- * where the IV/ICV may or may not be generated in hardware.
- *
- * Secondly, when the hardware handles fragmentation, the frame handed to
- * the driver from mac80211 is the MSDU, not the MPDU.
- *
- * Finally, for received frames, the driver is able to indicate that it has
- * filled a radiotap header and put that in front of the frame; if it does
- * not do so then mac80211 may add this under certain circumstances.
- */
-
-/**
- * struct ieee80211_ht_bss_info - describing BSS's HT characteristics
- *
- * This structure describes most essential parameters needed
- * to describe 802.11n HT characteristics in a BSS
- *
- * @primary_channel: channel number of primery channel
- * @bss_cap: 802.11n's general BSS capabilities (e.g. channel width)
- * @bss_op_mode: 802.11n's BSS operation modes (e.g. HT protection)
- */
-struct ieee80211_ht_bss_info {
- u8 primary_channel;
- u8 bss_cap; /* use IEEE80211_HT_IE_CHA_ */
- u8 bss_op_mode; /* use IEEE80211_HT_IE_ */
-};
-
-/**
- * struct ieee80211_tx_queue_params - transmit queue configuration
- *
- * The information provided in this structure is required for QoS
- * transmit queue configuration.
- *
- * @aifs: arbitration interface space [0..255, -1: use default]
- * @cw_min: minimum contention window [will be a value of the form
- * 2^n-1 in the range 1..1023; 0: use default]
- * @cw_max: maximum contention window [like @cw_min]
- * @burst_time: maximum burst time in units of 0.1ms, 0 meaning disabled
- */
-struct ieee80211_tx_queue_params {
- int aifs;
- int cw_min;
- int cw_max;
- int burst_time;
-};
-
-/**
- * struct ieee80211_tx_queue_stats_data - transmit queue statistics
- *
- * @len: number of packets in queue
- * @limit: queue length limit
- * @count: number of frames sent
- */
-struct ieee80211_tx_queue_stats_data {
- unsigned int len;
- unsigned int limit;
- unsigned int count;
-};
-
-/**
- * enum ieee80211_tx_queue - transmit queue number
- *
- * These constants are used with some callbacks that take a
- * queue number to set parameters for a queue.
- *
- * @IEEE80211_TX_QUEUE_DATA0: data queue 0
- * @IEEE80211_TX_QUEUE_DATA1: data queue 1
- * @IEEE80211_TX_QUEUE_DATA2: data queue 2
- * @IEEE80211_TX_QUEUE_DATA3: data queue 3
- * @IEEE80211_TX_QUEUE_DATA4: data queue 4
- * @IEEE80211_TX_QUEUE_SVP: ??
- * @NUM_TX_DATA_QUEUES: number of data queues
- * @IEEE80211_TX_QUEUE_AFTER_BEACON: transmit queue for frames to be
- * sent after a beacon
- * @IEEE80211_TX_QUEUE_BEACON: transmit queue for beacon frames
- * @NUM_TX_DATA_QUEUES_AMPDU: adding more queues for A-MPDU
- */
-enum ieee80211_tx_queue {
- IEEE80211_TX_QUEUE_DATA0,
- IEEE80211_TX_QUEUE_DATA1,
- IEEE80211_TX_QUEUE_DATA2,
- IEEE80211_TX_QUEUE_DATA3,
- IEEE80211_TX_QUEUE_DATA4,
- IEEE80211_TX_QUEUE_SVP,
-
- NUM_TX_DATA_QUEUES,
-
-/* due to stupidity in the sub-ioctl userspace interface, the items in
- * this struct need to have fixed values. As soon as it is removed, we can
- * fix these entries. */
- IEEE80211_TX_QUEUE_AFTER_BEACON = 6,
- IEEE80211_TX_QUEUE_BEACON = 7,
- NUM_TX_DATA_QUEUES_AMPDU = 16
-};
-
-struct ieee80211_tx_queue_stats {
- struct ieee80211_tx_queue_stats_data data[NUM_TX_DATA_QUEUES_AMPDU];
-};
-
-struct ieee80211_low_level_stats {
- unsigned int dot11ACKFailureCount;
- unsigned int dot11RTSFailureCount;
- unsigned int dot11FCSErrorCount;
- unsigned int dot11RTSSuccessCount;
-};
-
-/**
- * enum ieee80211_bss_change - BSS change notification flags
- *
- * These flags are used with the bss_info_changed() callback
- * to indicate which BSS parameter changed.
- *
- * @BSS_CHANGED_ASSOC: association status changed (associated/disassociated),
- * also implies a change in the AID.
- * @BSS_CHANGED_ERP_CTS_PROT: CTS protection changed
- * @BSS_CHANGED_ERP_PREAMBLE: preamble changed
- */
-enum ieee80211_bss_change {
- BSS_CHANGED_ASSOC = 1<<0,
- BSS_CHANGED_ERP_CTS_PROT = 1<<1,
- BSS_CHANGED_ERP_PREAMBLE = 1<<2,
-};
-
-/**
- * struct ieee80211_bss_conf - holds the BSS's changing parameters
- *
- * This structure keeps information about a BSS (and an association
- * to that BSS) that can change during the lifetime of the BSS.
- *
- * @assoc: association status
- * @aid: association ID number, valid only when @assoc is true
- * @use_cts_prot: use CTS protection
- * @use_short_preamble: use 802.11b short preamble
- */
-struct ieee80211_bss_conf {
- /* association related data */
- bool assoc;
- u16 aid;
- /* erp related data */
- bool use_cts_prot;
- bool use_short_preamble;
-};
-
-/* Transmit control fields. This data structure is passed to low-level driver
- * with each TX frame. The low-level driver is responsible for configuring
- * the hardware to use given values (depending on what is supported). */
-
-struct ieee80211_tx_control {
- struct ieee80211_vif *vif;
- struct ieee80211_rate *tx_rate;
-
- /* Transmit rate for RTS/CTS frame */
- struct ieee80211_rate *rts_cts_rate;
-
- /* retry rate for the last retries */
- struct ieee80211_rate *alt_retry_rate;
-
-#define IEEE80211_TXCTL_REQ_TX_STATUS (1<<0)/* request TX status callback for
- * this frame */
-#define IEEE80211_TXCTL_DO_NOT_ENCRYPT (1<<1) /* send this frame without
- * encryption; e.g., for EAPOL
- * frames */
-#define IEEE80211_TXCTL_USE_RTS_CTS (1<<2) /* use RTS-CTS before sending
- * frame */
-#define IEEE80211_TXCTL_USE_CTS_PROTECT (1<<3) /* use CTS protection for the
- * frame (e.g., for combined
- * 802.11g / 802.11b networks) */
-#define IEEE80211_TXCTL_NO_ACK (1<<4) /* tell the low level not to
- * wait for an ack */
-#define IEEE80211_TXCTL_RATE_CTRL_PROBE (1<<5)
-#define IEEE80211_TXCTL_CLEAR_DST_MASK (1<<6)
-#define IEEE80211_TXCTL_REQUEUE (1<<7)
-#define IEEE80211_TXCTL_FIRST_FRAGMENT (1<<8) /* this is a first fragment of
- * the frame */
-#define IEEE80211_TXCTL_SHORT_PREAMBLE (1<<9)
-#define IEEE80211_TXCTL_LONG_RETRY_LIMIT (1<<10) /* this frame should be send
- * using the through
- * set_retry_limit configured
- * long retry value */
-#define IEEE80211_TXCTL_EAPOL_FRAME (1<<11) /* internal to mac80211 */
-#define IEEE80211_TXCTL_SEND_AFTER_DTIM (1<<12) /* send this frame after DTIM
- * beacon */
-#define IEEE80211_TXCTL_AMPDU (1<<13) /* this frame should be sent
- * as part of an A-MPDU */
- u32 flags; /* tx control flags defined
- * above */
- u8 key_idx; /* keyidx from hw->set_key(), undefined if
- * IEEE80211_TXCTL_DO_NOT_ENCRYPT is set */
- u8 retry_limit; /* 1 = only first attempt, 2 = one retry, ..
- * This could be used when set_retry_limit
- * is not implemented by the driver */
- u8 antenna_sel_tx; /* 0 = default/diversity, 1 = Ant0, 2 = Ant1 */
- u8 icv_len; /* length of the ICV/MIC field in octets */
- u8 iv_len; /* length of the IV field in octets */
- u8 queue; /* hardware queue to use for this frame;
- * 0 = highest, hw->queues-1 = lowest */
- int type; /* internal */
-};
-
-
-/**
- * enum mac80211_rx_flags - receive flags
- *
- * These flags are used with the @flag member of &struct ieee80211_rx_status.
- * @RX_FLAG_MMIC_ERROR: Michael MIC error was reported on this frame.
- * Use together with %RX_FLAG_MMIC_STRIPPED.
- * @RX_FLAG_DECRYPTED: This frame was decrypted in hardware.
- * @RX_FLAG_RADIOTAP: This frame starts with a radiotap header.
- * @RX_FLAG_MMIC_STRIPPED: the Michael MIC is stripped off this frame,
- * verification has been done by the hardware.
- * @RX_FLAG_IV_STRIPPED: The IV/ICV are stripped from this frame.
- * If this flag is set, the stack cannot do any replay detection
- * hence the driver or hardware will have to do that.
- * @RX_FLAG_FAILED_FCS_CRC: Set this flag if the FCS check failed on
- * the frame.
- * @RX_FLAG_FAILED_PLCP_CRC: Set this flag if the PCLP check failed on
- * the frame.
- * @RX_FLAG_TSFT: The timestamp passed in the RX status (@mactime field)
- * is valid.
- */
-enum mac80211_rx_flags {
- RX_FLAG_MMIC_ERROR = 1<<0,
- RX_FLAG_DECRYPTED = 1<<1,
- RX_FLAG_RADIOTAP = 1<<2,
- RX_FLAG_MMIC_STRIPPED = 1<<3,
- RX_FLAG_IV_STRIPPED = 1<<4,
- RX_FLAG_FAILED_FCS_CRC = 1<<5,
- RX_FLAG_FAILED_PLCP_CRC = 1<<6,
- RX_FLAG_TSFT = 1<<7,
-};
-
-/**
- * struct ieee80211_rx_status - receive status
- *
- * The low-level driver should provide this information (the subset
- * supported by hardware) to the 802.11 code with each received
- * frame.
- * @mactime: MAC timestamp as defined by 802.11
- * @band: the active band when this frame was received
- * @freq: frequency the radio was tuned to when receiving this frame, in MHz
- * @ssi: signal strength when receiving this frame
- * @signal: used as 'qual' in statistics reporting
- * @noise: PHY noise when receiving this frame
- * @antenna: antenna used
- * @rate_idx: index of data rate into band's supported rates
- * @flag: %RX_FLAG_*
- */
-struct ieee80211_rx_status {
- u64 mactime;
- enum ieee80211_band band;
- int freq;
- int ssi;
- int signal;
- int noise;
- int antenna;
- int rate_idx;
- int flag;
-};
-
-/**
- * enum ieee80211_tx_status_flags - transmit status flags
- *
- * Status flags to indicate various transmit conditions.
- *
- * @IEEE80211_TX_STATUS_TX_FILTERED: The frame was not transmitted
- * because the destination STA was in powersave mode.
- * @IEEE80211_TX_STATUS_ACK: Frame was acknowledged
- * @IEEE80211_TX_STATUS_AMPDU: The frame was aggregated, so status
- * is for the whole aggregation.
- */
-enum ieee80211_tx_status_flags {
- IEEE80211_TX_STATUS_TX_FILTERED = 1<<0,
- IEEE80211_TX_STATUS_ACK = 1<<1,
- IEEE80211_TX_STATUS_AMPDU = 1<<2,
-};
-
-/**
- * struct ieee80211_tx_status - transmit status
- *
- * As much information as possible should be provided for each transmitted
- * frame with ieee80211_tx_status().
- *
- * @control: a copy of the &struct ieee80211_tx_control passed to the driver
- * in the tx() callback.
- * @flags: transmit status flags, defined above
- * @retry_count: number of retries
- * @excessive_retries: set to 1 if the frame was retried many times
- * but not acknowledged
- * @ampdu_ack_len: number of aggregated frames.
- * relevant only if IEEE80211_TX_STATUS_AMPDU was set.
- * @ampdu_ack_map: block ack bit map for the aggregation.
- * relevant only if IEEE80211_TX_STATUS_AMPDU was set.
- * @ack_signal: signal strength of the ACK frame
- * @queue_length: ?? REMOVE
- * @queue_number: ?? REMOVE
- */
-struct ieee80211_tx_status {
- struct ieee80211_tx_control control;
- u8 flags;
- u8 retry_count;
- bool excessive_retries;
- u8 ampdu_ack_len;
- u64 ampdu_ack_map;
- int ack_signal;
- int queue_length;
- int queue_number;
-};
-
-/**
- * enum ieee80211_conf_flags - configuration flags
- *
- * Flags to define PHY configuration options
- *
- * @IEEE80211_CONF_SHORT_SLOT_TIME: use 802.11g short slot time
- * @IEEE80211_CONF_RADIOTAP: add radiotap header at receive time (if supported)
- * @IEEE80211_CONF_SUPPORT_HT_MODE: use 802.11n HT capabilities (if supported)
- */
-enum ieee80211_conf_flags {
- IEEE80211_CONF_SHORT_SLOT_TIME = (1<<0),
- IEEE80211_CONF_RADIOTAP = (1<<1),
- IEEE80211_CONF_SUPPORT_HT_MODE = (1<<2),
-};
-
-/**
- * struct ieee80211_conf - configuration of the device
- *
- * This struct indicates how the driver shall configure the hardware.
- *
- * @radio_enabled: when zero, driver is required to switch off the radio.
- * TODO make a flag
- * @beacon_int: beacon interval (TODO make interface config)
- * @flags: configuration flags defined above
- * @power_level: requested transmit power (in dBm)
- * @max_antenna_gain: maximum antenna gain (in dBi)
- * @antenna_sel_tx: transmit antenna selection, 0: default/diversity,
- * 1/2: antenna 0/1
- * @antenna_sel_rx: receive antenna selection, like @antenna_sel_tx
- * @ht_conf: describes current self configuration of 802.11n HT capabilies
- * @ht_bss_conf: describes current BSS configuration of 802.11n HT parameters
- * @channel: the channel to tune to
- */
-struct ieee80211_conf {
- unsigned int regulatory_domain;
- int radio_enabled;
-
- int beacon_int;
- u32 flags;
- int power_level;
- int max_antenna_gain;
- u8 antenna_sel_tx;
- u8 antenna_sel_rx;
-
- struct ieee80211_channel *channel;
-
- struct ieee80211_ht_info ht_conf;
- struct ieee80211_ht_bss_info ht_bss_conf;
-};
-
-/**
- * enum ieee80211_if_types - types of 802.11 network interfaces
- *
- * @IEEE80211_IF_TYPE_INVALID: invalid interface type, not used
- * by mac80211 itself
- * @IEEE80211_IF_TYPE_AP: interface in AP mode.
- * @IEEE80211_IF_TYPE_MGMT: special interface for communication with hostap
- * daemon. Drivers should never see this type.
- * @IEEE80211_IF_TYPE_STA: interface in STA (client) mode.
- * @IEEE80211_IF_TYPE_IBSS: interface in IBSS (ad-hoc) mode.
- * @IEEE80211_IF_TYPE_MNTR: interface in monitor (rfmon) mode.
- * @IEEE80211_IF_TYPE_WDS: interface in WDS mode.
- * @IEEE80211_IF_TYPE_VLAN: VLAN interface bound to an AP, drivers
- * will never see this type.
- */
-enum ieee80211_if_types {
- IEEE80211_IF_TYPE_INVALID,
- IEEE80211_IF_TYPE_AP,
- IEEE80211_IF_TYPE_STA,
- IEEE80211_IF_TYPE_IBSS,
- IEEE80211_IF_TYPE_MNTR,
- IEEE80211_IF_TYPE_WDS,
- IEEE80211_IF_TYPE_VLAN,
-};
-
-/**
- * struct ieee80211_vif - per-interface data
- *
- * Data in this structure is continually present for driver
- * use during the life of a virtual interface.
- *
- * @type: type of this virtual interface
- * @drv_priv: data area for driver use, will always be aligned to
- * sizeof(void *).
- */
-struct ieee80211_vif {
- enum ieee80211_if_types type;
- /* must be last */
- u8 drv_priv[0] __attribute__((__aligned__(sizeof(void *))));
-};
-
-/**
- * struct ieee80211_if_init_conf - initial configuration of an interface
- *
- * @vif: pointer to a driver-use per-interface structure. The pointer
- * itself is also used for various functions including
- * ieee80211_beacon_get() and ieee80211_get_buffered_bc().
- * @type: one of &enum ieee80211_if_types constants. Determines the type of
- * added/removed interface.
- * @mac_addr: pointer to MAC address of the interface. This pointer is valid
- * until the interface is removed (i.e. it cannot be used after
- * remove_interface() callback was called for this interface).
- *
- * This structure is used in add_interface() and remove_interface()
- * callbacks of &struct ieee80211_hw.
- *
- * When you allow multiple interfaces to be added to your PHY, take care
- * that the hardware can actually handle multiple MAC addresses. However,
- * also take care that when there's no interface left with mac_addr != %NULL
- * you remove the MAC address from the device to avoid acknowledging packets
- * in pure monitor mode.
- */
-struct ieee80211_if_init_conf {
- enum ieee80211_if_types type;
- struct ieee80211_vif *vif;
- void *mac_addr;
-};
-
-/**
- * struct ieee80211_if_conf - configuration of an interface
- *
- * @type: type of the interface. This is always the same as was specified in
- * &struct ieee80211_if_init_conf. The type of an interface never changes
- * during the life of the interface; this field is present only for
- * convenience.
- * @bssid: BSSID of the network we are associated to/creating.
- * @ssid: used (together with @ssid_len) by drivers for hardware that
- * generate beacons independently. The pointer is valid only during the
- * config_interface() call, so copy the value somewhere if you need
- * it.
- * @ssid_len: length of the @ssid field.
- * @beacon: beacon template. Valid only if @host_gen_beacon_template in
- * &struct ieee80211_hw is set. The driver is responsible of freeing
- * the sk_buff.
- * @beacon_control: tx_control for the beacon template, this field is only
- * valid when the @beacon field was set.
- *
- * This structure is passed to the config_interface() callback of
- * &struct ieee80211_hw.
- */
-struct ieee80211_if_conf {
- int type;
- u8 *bssid;
- u8 *ssid;
- size_t ssid_len;
- struct sk_buff *beacon;
- struct ieee80211_tx_control *beacon_control;
-};
-
-/**
- * enum ieee80211_key_alg - key algorithm
- * @ALG_WEP: WEP40 or WEP104
- * @ALG_TKIP: TKIP
- * @ALG_CCMP: CCMP (AES)
- */
-enum ieee80211_key_alg {
- ALG_WEP,
- ALG_TKIP,
- ALG_CCMP,
-};
-
-
-/**
- * enum ieee80211_key_flags - key flags
- *
- * These flags are used for communication about keys between the driver
- * and mac80211, with the @flags parameter of &struct ieee80211_key_conf.
- *
- * @IEEE80211_KEY_FLAG_WMM_STA: Set by mac80211, this flag indicates
- * that the STA this key will be used with could be using QoS.
- * @IEEE80211_KEY_FLAG_GENERATE_IV: This flag should be set by the
- * driver to indicate that it requires IV generation for this
- * particular key.
- * @IEEE80211_KEY_FLAG_GENERATE_MMIC: This flag should be set by
- * the driver for a TKIP key if it requires Michael MIC
- * generation in software.
- */
-enum ieee80211_key_flags {
- IEEE80211_KEY_FLAG_WMM_STA = 1<<0,
- IEEE80211_KEY_FLAG_GENERATE_IV = 1<<1,
- IEEE80211_KEY_FLAG_GENERATE_MMIC= 1<<2,
-};
-
-/**
- * struct ieee80211_key_conf - key information
- *
- * This key information is given by mac80211 to the driver by
- * the set_key() callback in &struct ieee80211_ops.
- *
- * @hw_key_idx: To be set by the driver, this is the key index the driver
- * wants to be given when a frame is transmitted and needs to be
- * encrypted in hardware.
- * @alg: The key algorithm.
- * @flags: key flags, see &enum ieee80211_key_flags.
- * @keyidx: the key index (0-3)
- * @keylen: key material length
- * @key: key material
- */
-struct ieee80211_key_conf {
- enum ieee80211_key_alg alg;
- u8 hw_key_idx;
- u8 flags;
- s8 keyidx;
- u8 keylen;
- u8 key[0];
-};
-
-/**
- * enum set_key_cmd - key command
- *
- * Used with the set_key() callback in &struct ieee80211_ops, this
- * indicates whether a key is being removed or added.
- *
- * @SET_KEY: a key is set
- * @DISABLE_KEY: a key must be disabled
- */
-enum set_key_cmd {
- SET_KEY, DISABLE_KEY,
-};
-
-/**
- * enum sta_notify_cmd - sta notify command
- *
- * Used with the sta_notify() callback in &struct ieee80211_ops, this
- * indicates addition and removal of a station to station table
- *
- * @STA_NOTIFY_ADD: a station was added to the station table
- * @STA_NOTIFY_REMOVE: a station being removed from the station table
- */
-enum sta_notify_cmd {
- STA_NOTIFY_ADD, STA_NOTIFY_REMOVE
-};
-
-/**
- * enum ieee80211_hw_flags - hardware flags
- *
- * These flags are used to indicate hardware capabilities to
- * the stack. Generally, flags here should have their meaning
- * done in a way that the simplest hardware doesn't need setting
- * any particular flags. There are some exceptions to this rule,
- * however, so you are advised to review these flags carefully.
- *
- * @IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE:
- * The device only needs to be supplied with a beacon template.
- * If you need the host to generate each beacon then don't use
- * this flag and call ieee80211_beacon_get() when you need the
- * next beacon frame. Note that if you set this flag, you must
- * implement the set_tim() callback for powersave mode to work
- * properly.
- * This flag is only relevant for access-point mode.
- *
- * @IEEE80211_HW_RX_INCLUDES_FCS:
- * Indicates that received frames passed to the stack include
- * the FCS at the end.
- *
- * @IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING:
- * Some wireless LAN chipsets buffer broadcast/multicast frames
- * for power saving stations in the hardware/firmware and others
- * rely on the host system for such buffering. This option is used
- * to configure the IEEE 802.11 upper layer to buffer broadcast and
- * multicast frames when there are power saving stations so that
- * the driver can fetch them with ieee80211_get_buffered_bc(). Note
- * that not setting this flag works properly only when the
- * %IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE is also not set because
- * otherwise the stack will not know when the DTIM beacon was sent.
- *
- * @IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE:
- * Hardware is not capable of short slot operation on the 2.4 GHz band.
- *
- * @IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE:
- * Hardware is not capable of receiving frames with short preamble on
- * the 2.4 GHz band.
- */
-enum ieee80211_hw_flags {
- IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE = 1<<0,
- IEEE80211_HW_RX_INCLUDES_FCS = 1<<1,
- IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING = 1<<2,
- IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE = 1<<3,
- IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE = 1<<4,
-};
-
-/**
- * struct ieee80211_hw - hardware information and state
- *
- * This structure contains the configuration and hardware
- * information for an 802.11 PHY.
- *
- * @wiphy: This points to the &struct wiphy allocated for this
- * 802.11 PHY. You must fill in the @perm_addr and @dev
- * members of this structure using SET_IEEE80211_DEV()
- * and SET_IEEE80211_PERM_ADDR(). Additionally, all supported
- * bands (with channels, bitrates) are registered here.
- *
- * @conf: &struct ieee80211_conf, device configuration, don't use.
- *
- * @workqueue: single threaded workqueue available for driver use,
- * allocated by mac80211 on registration and flushed on
- * unregistration.
- *
- * @priv: pointer to private area that was allocated for driver use
- * along with this structure.
- *
- * @flags: hardware flags, see &enum ieee80211_hw_flags.
- *
- * @extra_tx_headroom: headroom to reserve in each transmit skb
- * for use by the driver (e.g. for transmit headers.)
- *
- * @channel_change_time: time (in microseconds) it takes to change channels.
- *
- * @max_rssi: Maximum value for ssi in RX information, use
- * negative numbers for dBm and 0 to indicate no support.
- *
- * @max_signal: like @max_rssi, but for the signal value.
- *
- * @max_noise: like @max_rssi, but for the noise value.
- *
- * @queues: number of available hardware transmit queues for
- * data packets. WMM/QoS requires at least four.
- *
- * @rate_control_algorithm: rate control algorithm for this hardware.
- * If unset (NULL), the default algorithm will be used. Must be
- * set before calling ieee80211_register_hw().
- *
- * @vif_data_size: size (in bytes) of the drv_priv data area
- * within &struct ieee80211_vif.
- */
-struct ieee80211_hw {
- struct ieee80211_conf conf;
- struct wiphy *wiphy;
- struct workqueue_struct *workqueue;
- const char *rate_control_algorithm;
- void *priv;
- u32 flags;
- unsigned int extra_tx_headroom;
- int channel_change_time;
- int vif_data_size;
- u8 queues;
- s8 max_rssi;
- s8 max_signal;
- s8 max_noise;
-};
-
-/**
- * SET_IEEE80211_DEV - set device for 802.11 hardware
- *
- * @hw: the &struct ieee80211_hw to set the device for
- * @dev: the &struct device of this 802.11 device
- */
-static inline void SET_IEEE80211_DEV(struct ieee80211_hw *hw, struct device *dev)
-{
- set_wiphy_dev(hw->wiphy, dev);
-}
-
-/**
- * SET_IEEE80211_PERM_ADDR - set the permanenet MAC address for 802.11 hardware
- *
- * @hw: the &struct ieee80211_hw to set the MAC address for
- * @addr: the address to set
- */
-static inline void SET_IEEE80211_PERM_ADDR(struct ieee80211_hw *hw, u8 *addr)
-{
- memcpy(hw->wiphy->perm_addr, addr, ETH_ALEN);
-}
-
-/**
- * DOC: Hardware crypto acceleration
- *
- * mac80211 is capable of taking advantage of many hardware
- * acceleration designs for encryption and decryption operations.
- *
- * The set_key() callback in the &struct ieee80211_ops for a given
- * device is called to enable hardware acceleration of encryption and
- * decryption. The callback takes an @address parameter that will be
- * the broadcast address for default keys, the other station's hardware
- * address for individual keys or the zero address for keys that will
- * be used only for transmission.
- * Multiple transmission keys with the same key index may be used when
- * VLANs are configured for an access point.
- *
- * The @local_address parameter will always be set to our own address,
- * this is only relevant if you support multiple local addresses.
- *
- * When transmitting, the TX control data will use the @hw_key_idx
- * selected by the driver by modifying the &struct ieee80211_key_conf
- * pointed to by the @key parameter to the set_key() function.
- *
- * The set_key() call for the %SET_KEY command should return 0 if
- * the key is now in use, -%EOPNOTSUPP or -%ENOSPC if it couldn't be
- * added; if you return 0 then hw_key_idx must be assigned to the
- * hardware key index, you are free to use the full u8 range.
- *
- * When the cmd is %DISABLE_KEY then it must succeed.
- *
- * Note that it is permissible to not decrypt a frame even if a key
- * for it has been uploaded to hardware, the stack will not make any
- * decision based on whether a key has been uploaded or not but rather
- * based on the receive flags.
- *
- * The &struct ieee80211_key_conf structure pointed to by the @key
- * parameter is guaranteed to be valid until another call to set_key()
- * removes it, but it can only be used as a cookie to differentiate
- * keys.
- */
-
-/**
- * DOC: Frame filtering
- *
- * mac80211 requires to see many management frames for proper
- * operation, and users may want to see many more frames when
- * in monitor mode. However, for best CPU usage and power consumption,
- * having as few frames as possible percolate through the stack is
- * desirable. Hence, the hardware should filter as much as possible.
- *
- * To achieve this, mac80211 uses filter flags (see below) to tell
- * the driver's configure_filter() function which frames should be
- * passed to mac80211 and which should be filtered out.
- *
- * The configure_filter() callback is invoked with the parameters
- * @mc_count and @mc_list for the combined multicast address list
- * of all virtual interfaces, @changed_flags telling which flags
- * were changed and @total_flags with the new flag states.
- *
- * If your device has no multicast address filters your driver will
- * need to check both the %FIF_ALLMULTI flag and the @mc_count
- * parameter to see whether multicast frames should be accepted
- * or dropped.
- *
- * All unsupported flags in @total_flags must be cleared, i.e. you
- * should clear all bits except those you honoured.
- */
-
-/**
- * enum ieee80211_filter_flags - hardware filter flags
- *
- * These flags determine what the filter in hardware should be
- * programmed to let through and what should not be passed to the
- * stack. It is always safe to pass more frames than requested,
- * but this has negative impact on power consumption.
- *
- * @FIF_PROMISC_IN_BSS: promiscuous mode within your BSS,
- * think of the BSS as your network segment and then this corresponds
- * to the regular ethernet device promiscuous mode.
- *
- * @FIF_ALLMULTI: pass all multicast frames, this is used if requested
- * by the user or if the hardware is not capable of filtering by
- * multicast address.
- *
- * @FIF_FCSFAIL: pass frames with failed FCS (but you need to set the
- * %RX_FLAG_FAILED_FCS_CRC for them)
- *
- * @FIF_PLCPFAIL: pass frames with failed PLCP CRC (but you need to set
- * the %RX_FLAG_FAILED_PLCP_CRC for them
- *
- * @FIF_BCN_PRBRESP_PROMISC: This flag is set during scanning to indicate
- * to the hardware that it should not filter beacons or probe responses
- * by BSSID. Filtering them can greatly reduce the amount of processing
- * mac80211 needs to do and the amount of CPU wakeups, so you should
- * honour this flag if possible.
- *
- * @FIF_CONTROL: pass control frames, if PROMISC_IN_BSS is not set then
- * only those addressed to this station
- *
- * @FIF_OTHER_BSS: pass frames destined to other BSSes
- */
-enum ieee80211_filter_flags {
- FIF_PROMISC_IN_BSS = 1<<0,
- FIF_ALLMULTI = 1<<1,
- FIF_FCSFAIL = 1<<2,
- FIF_PLCPFAIL = 1<<3,
- FIF_BCN_PRBRESP_PROMISC = 1<<4,
- FIF_CONTROL = 1<<5,
- FIF_OTHER_BSS = 1<<6,
-};
-
-/**
- * enum ieee80211_ampdu_mlme_action - A-MPDU actions
- *
- * These flags are used with the ampdu_action() callback in
- * &struct ieee80211_ops to indicate which action is needed.
- * @IEEE80211_AMPDU_RX_START: start Rx aggregation
- * @IEEE80211_AMPDU_RX_STOP: stop Rx aggregation
- * @IEEE80211_AMPDU_TX_START: start Tx aggregation
- * @IEEE80211_AMPDU_TX_STOP: stop Tx aggregation
- */
-enum ieee80211_ampdu_mlme_action {
- IEEE80211_AMPDU_RX_START,
- IEEE80211_AMPDU_RX_STOP,
- IEEE80211_AMPDU_TX_START,
- IEEE80211_AMPDU_TX_STOP,
-};
-
-/**
- * struct ieee80211_ops - callbacks from mac80211 to the driver
- *
- * This structure contains various callbacks that the driver may
- * handle or, in some cases, must handle, for example to configure
- * the hardware to a new channel or to transmit a frame.
- *
- * @tx: Handler that 802.11 module calls for each transmitted frame.
- * skb contains the buffer starting from the IEEE 802.11 header.
- * The low-level driver should send the frame out based on
- * configuration in the TX control data. Must be implemented and
- * atomic.
- *
- * @start: Called before the first netdevice attached to the hardware
- * is enabled. This should turn on the hardware and must turn on
- * frame reception (for possibly enabled monitor interfaces.)
- * Returns negative error codes, these may be seen in userspace,
- * or zero.
- * When the device is started it should not have a MAC address
- * to avoid acknowledging frames before a non-monitor device
- * is added.
- * Must be implemented.
- *
- * @stop: Called after last netdevice attached to the hardware
- * is disabled. This should turn off the hardware (at least
- * it must turn off frame reception.)
- * May be called right after add_interface if that rejects
- * an interface.
- * Must be implemented.
- *
- * @add_interface: Called when a netdevice attached to the hardware is
- * enabled. Because it is not called for monitor mode devices, @open
- * and @stop must be implemented.
- * The driver should perform any initialization it needs before
- * the device can be enabled. The initial configuration for the
- * interface is given in the conf parameter.
- * The callback may refuse to add an interface by returning a
- * negative error code (which will be seen in userspace.)
- * Must be implemented.
- *
- * @remove_interface: Notifies a driver that an interface is going down.
- * The @stop callback is called after this if it is the last interface
- * and no monitor interfaces are present.
- * When all interfaces are removed, the MAC address in the hardware
- * must be cleared so the device no longer acknowledges packets,
- * the mac_addr member of the conf structure is, however, set to the
- * MAC address of the device going away.
- * Hence, this callback must be implemented.
- *
- * @config: Handler for configuration requests. IEEE 802.11 code calls this
- * function to change hardware configuration, e.g., channel.
- *
- * @config_interface: Handler for configuration requests related to interfaces
- * (e.g. BSSID changes.)
- *
- * @bss_info_changed: Handler for configuration requests related to BSS
- * parameters that may vary during BSS's lifespan, and may affect low
- * level driver (e.g. assoc/disassoc status, erp parameters).
- * This function should not be used if no BSS has been set, unless
- * for association indication. The @changed parameter indicates which
- * of the bss parameters has changed when a call is made. This callback
- * has to be atomic.
- *
- * @configure_filter: Configure the device's RX filter.
- * See the section "Frame filtering" for more information.
- * This callback must be implemented and atomic.
- *
- * @set_tim: Set TIM bit. If the hardware/firmware takes care of beacon
- * generation (that is, %IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE is set)
- * mac80211 calls this function when a TIM bit must be set or cleared
- * for a given AID. Must be atomic.
- *
- * @set_key: See the section "Hardware crypto acceleration"
- * This callback can sleep, and is only called between add_interface
- * and remove_interface calls, i.e. while the interface with the
- * given local_address is enabled.
- *
- * @hw_scan: Ask the hardware to service the scan request, no need to start
- * the scan state machine in stack. The scan must honour the channel
- * configuration done by the regulatory agent in the wiphy's registered
- * bands.
- *
- * @get_stats: return low-level statistics
- *
- * @get_tkip_seq: If your device implements TKIP encryption in hardware this
- * callback should be provided to read the TKIP transmit IVs (both IV32
- * and IV16) for the given key from hardware.
- *
- * @set_rts_threshold: Configuration of RTS threshold (if device needs it)
- *
- * @set_frag_threshold: Configuration of fragmentation threshold. Assign this if
- * the device does fragmentation by itself; if this method is assigned then
- * the stack will not do fragmentation.
- *
- * @set_retry_limit: Configuration of retry limits (if device needs it)
- *
- * @sta_notify: Notifies low level driver about addition or removal
- * of assocaited station or AP.
- *
- * @conf_tx: Configure TX queue parameters (EDCF (aifs, cw_min, cw_max),
- * bursting) for a hardware TX queue. The @queue parameter uses the
- * %IEEE80211_TX_QUEUE_* constants. Must be atomic.
- *
- * @get_tx_stats: Get statistics of the current TX queue status. This is used
- * to get number of currently queued packets (queue length), maximum queue
- * size (limit), and total number of packets sent using each TX queue
- * (count). This information is used for WMM to find out which TX
- * queues have room for more packets and by hostapd to provide
- * statistics about the current queueing state to external programs.
- *
- * @get_tsf: Get the current TSF timer value from firmware/hardware. Currently,
- * this is only used for IBSS mode debugging and, as such, is not a
- * required function. Must be atomic.
- *
- * @reset_tsf: Reset the TSF timer and allow firmware/hardware to synchronize
- * with other STAs in the IBSS. This is only used in IBSS mode. This
- * function is optional if the firmware/hardware takes full care of
- * TSF synchronization.
- *
- * @beacon_update: Setup beacon data for IBSS beacons. Unlike access point,
- * IBSS uses a fixed beacon frame which is configured using this
- * function.
- * If the driver returns success (0) from this callback, it owns
- * the skb. That means the driver is responsible to kfree_skb() it.
- * The control structure is not dynamically allocated. That means the
- * driver does not own the pointer and if it needs it somewhere
- * outside of the context of this function, it must copy it
- * somewhere else.
- * This handler is required only for IBSS mode.
- *
- * @tx_last_beacon: Determine whether the last IBSS beacon was sent by us.
- * This is needed only for IBSS mode and the result of this function is
- * used to determine whether to reply to Probe Requests.
- *
- * @conf_ht: Configures low level driver with 802.11n HT data. Must be atomic.
- *
- * @ampdu_action: Perform a certain A-MPDU action
- * The RA/TID combination determines the destination and TID we want
- * the ampdu action to be performed for. The action is defined through
- * ieee80211_ampdu_mlme_action. Starting sequence number (@ssn)
- * is the first frame we expect to perform the action on. notice
- * that TX/RX_STOP can pass NULL for this parameter.
- */
-struct ieee80211_ops {
- int (*tx)(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_tx_control *control);
- int (*start)(struct ieee80211_hw *hw);
- void (*stop)(struct ieee80211_hw *hw);
- int (*add_interface)(struct ieee80211_hw *hw,
- struct ieee80211_if_init_conf *conf);
- void (*remove_interface)(struct ieee80211_hw *hw,
- struct ieee80211_if_init_conf *conf);
- int (*config)(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
- int (*config_interface)(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_if_conf *conf);
- void (*bss_info_changed)(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_bss_conf *info,
- u32 changed);
- void (*configure_filter)(struct ieee80211_hw *hw,
- unsigned int changed_flags,
- unsigned int *total_flags,
- int mc_count, struct dev_addr_list *mc_list);
- int (*set_tim)(struct ieee80211_hw *hw, int aid, int set);
- int (*set_key)(struct ieee80211_hw *hw, enum set_key_cmd cmd,
- const u8 *local_address, const u8 *address,
- struct ieee80211_key_conf *key);
- int (*hw_scan)(struct ieee80211_hw *hw, u8 *ssid, size_t len);
- int (*get_stats)(struct ieee80211_hw *hw,
- struct ieee80211_low_level_stats *stats);
- void (*get_tkip_seq)(struct ieee80211_hw *hw, u8 hw_key_idx,
- u32 *iv32, u16 *iv16);
- int (*set_rts_threshold)(struct ieee80211_hw *hw, u32 value);
- int (*set_frag_threshold)(struct ieee80211_hw *hw, u32 value);
- int (*set_retry_limit)(struct ieee80211_hw *hw,
- u32 short_retry, u32 long_retr);
- void (*sta_notify)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
- enum sta_notify_cmd, const u8 *addr);
- int (*conf_tx)(struct ieee80211_hw *hw, int queue,
- const struct ieee80211_tx_queue_params *params);
- int (*get_tx_stats)(struct ieee80211_hw *hw,
- struct ieee80211_tx_queue_stats *stats);
- u64 (*get_tsf)(struct ieee80211_hw *hw);
- void (*reset_tsf)(struct ieee80211_hw *hw);
- int (*beacon_update)(struct ieee80211_hw *hw,
- struct sk_buff *skb,
- struct ieee80211_tx_control *control);
- int (*tx_last_beacon)(struct ieee80211_hw *hw);
- int (*conf_ht)(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
- int (*ampdu_action)(struct ieee80211_hw *hw,
- enum ieee80211_ampdu_mlme_action action,
- const u8 *addr, u16 tid, u16 *ssn);
-};
-
-/**
- * ieee80211_alloc_hw - Allocate a new hardware device
- *
- * This must be called once for each hardware device. The returned pointer
- * must be used to refer to this device when calling other functions.
- * mac80211 allocates a private data area for the driver pointed to by
- * @priv in &struct ieee80211_hw, the size of this area is given as
- * @priv_data_len.
- *
- * @priv_data_len: length of private data
- * @ops: callbacks for this device
- */
-struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
- const struct ieee80211_ops *ops);
-
-/**
- * ieee80211_register_hw - Register hardware device
- *
- * You must call this function before any other functions
- * except ieee80211_register_hwmode.
- *
- * @hw: the device to register as returned by ieee80211_alloc_hw()
- */
-int ieee80211_register_hw(struct ieee80211_hw *hw);
-
-#ifdef CONFIG_MAC80211_LEDS
-extern char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw);
-extern char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw);
-extern char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw);
-extern char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw);
-#endif
-/**
- * ieee80211_get_tx_led_name - get name of TX LED
- *
- * mac80211 creates a transmit LED trigger for each wireless hardware
- * that can be used to drive LEDs if your driver registers a LED device.
- * This function returns the name (or %NULL if not configured for LEDs)
- * of the trigger so you can automatically link the LED device.
- *
- * @hw: the hardware to get the LED trigger name for
- */
-static inline char *ieee80211_get_tx_led_name(struct ieee80211_hw *hw)
-{
-#ifdef CONFIG_MAC80211_LEDS
- return __ieee80211_get_tx_led_name(hw);
-#else
- return NULL;
-#endif
-}
-
-/**
- * ieee80211_get_rx_led_name - get name of RX LED
- *
- * mac80211 creates a receive LED trigger for each wireless hardware
- * that can be used to drive LEDs if your driver registers a LED device.
- * This function returns the name (or %NULL if not configured for LEDs)
- * of the trigger so you can automatically link the LED device.
- *
- * @hw: the hardware to get the LED trigger name for
- */
-static inline char *ieee80211_get_rx_led_name(struct ieee80211_hw *hw)
-{
-#ifdef CONFIG_MAC80211_LEDS
- return __ieee80211_get_rx_led_name(hw);
-#else
- return NULL;
-#endif
-}
-
-/**
- * ieee80211_get_assoc_led_name - get name of association LED
- *
- * mac80211 creates a association LED trigger for each wireless hardware
- * that can be used to drive LEDs if your driver registers a LED device.
- * This function returns the name (or %NULL if not configured for LEDs)
- * of the trigger so you can automatically link the LED device.
- *
- * @hw: the hardware to get the LED trigger name for
- */
-static inline char *ieee80211_get_assoc_led_name(struct ieee80211_hw *hw)
-{
-#ifdef CONFIG_MAC80211_LEDS
- return __ieee80211_get_assoc_led_name(hw);
-#else
- return NULL;
-#endif
-}
-
-/**
- * ieee80211_get_radio_led_name - get name of radio LED
- *
- * mac80211 creates a radio change LED trigger for each wireless hardware
- * that can be used to drive LEDs if your driver registers a LED device.
- * This function returns the name (or %NULL if not configured for LEDs)
- * of the trigger so you can automatically link the LED device.
- *
- * @hw: the hardware to get the LED trigger name for
- */
-static inline char *ieee80211_get_radio_led_name(struct ieee80211_hw *hw)
-{
-#ifdef CONFIG_MAC80211_LEDS
- return __ieee80211_get_radio_led_name(hw);
-#else
- return NULL;
-#endif
-}
-
-/**
- * ieee80211_unregister_hw - Unregister a hardware device
- *
- * This function instructs mac80211 to free allocated resources
- * and unregister netdevices from the networking subsystem.
- *
- * @hw: the hardware to unregister
- */
-void ieee80211_unregister_hw(struct ieee80211_hw *hw);
-
-/**
- * ieee80211_free_hw - free hardware descriptor
- *
- * This function frees everything that was allocated, including the
- * private data for the driver. You must call ieee80211_unregister_hw()
- * before calling this function
- *
- * @hw: the hardware to free
- */
-void ieee80211_free_hw(struct ieee80211_hw *hw);
-
-/* trick to avoid symbol clashes with the ieee80211 subsystem */
-void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_rx_status *status);
-
-/**
- * ieee80211_rx - receive frame
- *
- * Use this function to hand received frames to mac80211. The receive
- * buffer in @skb must start with an IEEE 802.11 header or a radiotap
- * header if %RX_FLAG_RADIOTAP is set in the @status flags.
- *
- * This function may not be called in IRQ context.
- *
- * @hw: the hardware this frame came in on
- * @skb: the buffer to receive, owned by mac80211 after this call
- * @status: status of this frame; the status pointer need not be valid
- * after this function returns
- */
-static inline void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_rx_status *status)
-{
- __ieee80211_rx(hw, skb, status);
-}
-
-/**
- * ieee80211_rx_irqsafe - receive frame
- *
- * Like ieee80211_rx() but can be called in IRQ context
- * (internally defers to a workqueue.)
- *
- * @hw: the hardware this frame came in on
- * @skb: the buffer to receive, owned by mac80211 after this call
- * @status: status of this frame; the status pointer need not be valid
- * after this function returns and is not freed by mac80211,
- * it is recommended that it points to a stack area
- */
-void ieee80211_rx_irqsafe(struct ieee80211_hw *hw,
- struct sk_buff *skb,
- struct ieee80211_rx_status *status);
-
-/**
- * ieee80211_tx_status - transmit status callback
- *
- * Call this function for all transmitted frames after they have been
- * transmitted. It is permissible to not call this function for
- * multicast frames but this can affect statistics.
- *
- * @hw: the hardware the frame was transmitted by
- * @skb: the frame that was transmitted, owned by mac80211 after this call
- * @status: status information for this frame; the status pointer need not
- * be valid after this function returns and is not freed by mac80211,
- * it is recommended that it points to a stack area
- */
-void ieee80211_tx_status(struct ieee80211_hw *hw,
- struct sk_buff *skb,
- struct ieee80211_tx_status *status);
-void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw,
- struct sk_buff *skb,
- struct ieee80211_tx_status *status);
-
-/**
- * ieee80211_beacon_get - beacon generation function
- * @hw: pointer obtained from ieee80211_alloc_hw().
- * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
- * @control: will be filled with information needed to send this beacon.
- *
- * If the beacon frames are generated by the host system (i.e., not in
- * hardware/firmware), the low-level driver uses this function to receive
- * the next beacon frame from the 802.11 code. The low-level is responsible
- * for calling this function before beacon data is needed (e.g., based on
- * hardware interrupt). Returned skb is used only once and low-level driver
- * is responsible of freeing it.
- */
-struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_tx_control *control);
-
-/**
- * ieee80211_rts_get - RTS frame generation function
- * @hw: pointer obtained from ieee80211_alloc_hw().
- * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
- * @frame: pointer to the frame that is going to be protected by the RTS.
- * @frame_len: the frame length (in octets).
- * @frame_txctl: &struct ieee80211_tx_control of the frame.
- * @rts: The buffer where to store the RTS frame.
- *
- * If the RTS frames are generated by the host system (i.e., not in
- * hardware/firmware), the low-level driver uses this function to receive
- * the next RTS frame from the 802.11 code. The low-level is responsible
- * for calling this function before and RTS frame is needed.
- */
-void ieee80211_rts_get(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
- const void *frame, size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl,
- struct ieee80211_rts *rts);
-
-/**
- * ieee80211_rts_duration - Get the duration field for an RTS frame
- * @hw: pointer obtained from ieee80211_alloc_hw().
- * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
- * @frame_len: the length of the frame that is going to be protected by the RTS.
- * @frame_txctl: &struct ieee80211_tx_control of the frame.
- *
- * If the RTS is generated in firmware, but the host system must provide
- * the duration field, the low-level driver uses this function to receive
- * the duration field value in little-endian byteorder.
- */
-__le16 ieee80211_rts_duration(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif, size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl);
-
-/**
- * ieee80211_ctstoself_get - CTS-to-self frame generation function
- * @hw: pointer obtained from ieee80211_alloc_hw().
- * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
- * @frame: pointer to the frame that is going to be protected by the CTS-to-self.
- * @frame_len: the frame length (in octets).
- * @frame_txctl: &struct ieee80211_tx_control of the frame.
- * @cts: The buffer where to store the CTS-to-self frame.
- *
- * If the CTS-to-self frames are generated by the host system (i.e., not in
- * hardware/firmware), the low-level driver uses this function to receive
- * the next CTS-to-self frame from the 802.11 code. The low-level is responsible
- * for calling this function before and CTS-to-self frame is needed.
- */
-void ieee80211_ctstoself_get(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- const void *frame, size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl,
- struct ieee80211_cts *cts);
-
-/**
- * ieee80211_ctstoself_duration - Get the duration field for a CTS-to-self frame
- * @hw: pointer obtained from ieee80211_alloc_hw().
- * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
- * @frame_len: the length of the frame that is going to be protected by the CTS-to-self.
- * @frame_txctl: &struct ieee80211_tx_control of the frame.
- *
- * If the CTS-to-self is generated in firmware, but the host system must provide
- * the duration field, the low-level driver uses this function to receive
- * the duration field value in little-endian byteorder.
- */
-__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl);
-
-/**
- * ieee80211_generic_frame_duration - Calculate the duration field for a frame
- * @hw: pointer obtained from ieee80211_alloc_hw().
- * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
- * @frame_len: the length of the frame.
- * @rate: the rate at which the frame is going to be transmitted.
- *
- * Calculate the duration field of some generic frame, given its
- * length and transmission rate (in 100kbps).
- */
-__le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- size_t frame_len,
- struct ieee80211_rate *rate);
-
-/**
- * ieee80211_get_buffered_bc - accessing buffered broadcast and multicast frames
- * @hw: pointer as obtained from ieee80211_alloc_hw().
- * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf.
- * @control: will be filled with information needed to send returned frame.
- *
- * Function for accessing buffered broadcast and multicast frames. If
- * hardware/firmware does not implement buffering of broadcast/multicast
- * frames when power saving is used, 802.11 code buffers them in the host
- * memory. The low-level driver uses this function to fetch next buffered
- * frame. In most cases, this is used when generating beacon frame. This
- * function returns a pointer to the next buffered skb or NULL if no more
- * buffered frames are available.
- *
- * Note: buffered frames are returned only after DTIM beacon frame was
- * generated with ieee80211_beacon_get() and the low-level driver must thus
- * call ieee80211_beacon_get() first. ieee80211_get_buffered_bc() returns
- * NULL if the previous generated beacon was not DTIM, so the low-level driver
- * does not need to check for DTIM beacons separately and should be able to
- * use common code for all beacons.
- */
-struct sk_buff *
-ieee80211_get_buffered_bc(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
- struct ieee80211_tx_control *control);
-
-/**
- * ieee80211_get_hdrlen_from_skb - get header length from data
- *
- * Given an skb with a raw 802.11 header at the data pointer this function
- * returns the 802.11 header length in bytes (not including encryption
- * headers). If the data in the sk_buff is too short to contain a valid 802.11
- * header the function returns 0.
- *
- * @skb: the frame
- */
-int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);
-
-/**
- * ieee80211_get_hdrlen - get header length from frame control
- *
- * This function returns the 802.11 header length in bytes (not including
- * encryption headers.)
- *
- * @fc: the frame control field (in CPU endianness)
- */
-int ieee80211_get_hdrlen(u16 fc);
-
-/**
- * ieee80211_wake_queue - wake specific queue
- * @hw: pointer as obtained from ieee80211_alloc_hw().
- * @queue: queue number (counted from zero).
- *
- * Drivers should use this function instead of netif_wake_queue.
- */
-void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue);
-
-/**
- * ieee80211_stop_queue - stop specific queue
- * @hw: pointer as obtained from ieee80211_alloc_hw().
- * @queue: queue number (counted from zero).
- *
- * Drivers should use this function instead of netif_stop_queue.
- */
-void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue);
-
-/**
- * ieee80211_start_queues - start all queues
- * @hw: pointer to as obtained from ieee80211_alloc_hw().
- *
- * Drivers should use this function instead of netif_start_queue.
- */
-void ieee80211_start_queues(struct ieee80211_hw *hw);
-
-/**
- * ieee80211_stop_queues - stop all queues
- * @hw: pointer as obtained from ieee80211_alloc_hw().
- *
- * Drivers should use this function instead of netif_stop_queue.
- */
-void ieee80211_stop_queues(struct ieee80211_hw *hw);
-
-/**
- * ieee80211_wake_queues - wake all queues
- * @hw: pointer as obtained from ieee80211_alloc_hw().
- *
- * Drivers should use this function instead of netif_wake_queue.
- */
-void ieee80211_wake_queues(struct ieee80211_hw *hw);
-
-/**
- * ieee80211_scan_completed - completed hardware scan
- *
- * When hardware scan offload is used (i.e. the hw_scan() callback is
- * assigned) this function needs to be called by the driver to notify
- * mac80211 that the scan finished.
- *
- * @hw: the hardware that finished the scan
- */
-void ieee80211_scan_completed(struct ieee80211_hw *hw);
-
-/**
- * ieee80211_iterate_active_interfaces - iterate active interfaces
- *
- * This function iterates over the interfaces associated with a given
- * hardware that are currently active and calls the callback for them.
- *
- * @hw: the hardware struct of which the interfaces should be iterated over
- * @iterator: the iterator function to call, cannot sleep
- * @data: first argument of the iterator function
- */
-void ieee80211_iterate_active_interfaces(struct ieee80211_hw *hw,
- void (*iterator)(void *data, u8 *mac,
- struct ieee80211_vif *vif),
- void *data);
-
-/**
- * ieee80211_start_tx_ba_session - Start a tx Block Ack session.
- * @hw: pointer as obtained from ieee80211_alloc_hw().
- * @ra: receiver address of the BA session recipient
- * @tid: the TID to BA on.
- * @return: success if addBA request was sent, failure otherwise
- *
- * Although mac80211/low level driver/user space application can estimate
- * the need to start aggregation on a certain RA/TID, the session level
- * will be managed by the mac80211.
- */
-int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid);
-
-/**
- * ieee80211_start_tx_ba_cb - low level driver ready to aggregate.
- * @hw: pointer as obtained from ieee80211_alloc_hw().
- * @ra: receiver address of the BA session recipient.
- * @tid: the TID to BA on.
- *
- * This function must be called by low level driver once it has
- * finished with preparations for the BA session.
- */
-void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid);
-
-/**
- * ieee80211_start_tx_ba_cb_irqsafe - low level driver ready to aggregate.
- * @hw: pointer as obtained from ieee80211_alloc_hw().
- * @ra: receiver address of the BA session recipient.
- * @tid: the TID to BA on.
- *
- * This function must be called by low level driver once it has
- * finished with preparations for the BA session.
- * This version of the function is irq safe.
- */
-void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, const u8 *ra,
- u16 tid);
-
-/**
- * ieee80211_stop_tx_ba_session - Stop a Block Ack session.
- * @hw: pointer as obtained from ieee80211_alloc_hw().
- * @ra: receiver address of the BA session recipient
- * @tid: the TID to stop BA.
- * @initiator: if indicates initiator DELBA frame will be sent.
- * @return: error if no sta with matching da found, success otherwise
- *
- * Although mac80211/low level driver/user space application can estimate
- * the need to stop aggregation on a certain RA/TID, the session level
- * will be managed by the mac80211.
- */
-int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw,
- u8 *ra, u16 tid,
- enum ieee80211_back_parties initiator);
-
-/**
- * ieee80211_stop_tx_ba_cb - low level driver ready to stop aggregate.
- * @hw: pointer as obtained from ieee80211_alloc_hw().
- * @ra: receiver address of the BA session recipient.
- * @tid: the desired TID to BA on.
- *
- * This function must be called by low level driver once it has
- * finished with preparations for the BA session tear down.
- */
-void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid);
-
-/**
- * ieee80211_stop_tx_ba_cb_irqsafe - low level driver ready to stop aggregate.
- * @hw: pointer as obtained from ieee80211_alloc_hw().
- * @ra: receiver address of the BA session recipient.
- * @tid: the desired TID to BA on.
- *
- * This function must be called by low level driver once it has
- * finished with preparations for the BA session tear down.
- * This version of the function is irq safe.
- */
-void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, const u8 *ra,
- u16 tid);
-
-#endif /* MAC80211_H */
+++ /dev/null
-#ifndef __NET_WIRELESS_H
-#define __NET_WIRELESS_H
-
-/*
- * 802.11 device management
- *
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- */
-
-#include <linux/netdevice.h>
-#include <linux/debugfs.h>
-#include <linux/list.h>
-#include <net/cfg80211.h>
-
-/**
- * enum ieee80211_band - supported frequency bands
- *
- * The bands are assigned this way because the supported
- * bitrates differ in these bands.
- *
- * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
- * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
- */
-enum ieee80211_band {
- IEEE80211_BAND_2GHZ,
- IEEE80211_BAND_5GHZ,
-
- /* keep last */
- IEEE80211_NUM_BANDS
-};
-
-/**
- * enum ieee80211_channel_flags - channel flags
- *
- * Channel flags set by the regulatory control code.
- *
- * @IEEE80211_CHAN_DISABLED: This channel is disabled.
- * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted
- * on this channel.
- * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel.
- * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
- */
-enum ieee80211_channel_flags {
- IEEE80211_CHAN_DISABLED = 1<<0,
- IEEE80211_CHAN_PASSIVE_SCAN = 1<<1,
- IEEE80211_CHAN_NO_IBSS = 1<<2,
- IEEE80211_CHAN_RADAR = 1<<3,
-};
-
-/**
- * struct ieee80211_channel - channel definition
- *
- * This structure describes a single channel for use
- * with cfg80211.
- *
- * @center_freq: center frequency in MHz
- * @hw_value: hardware-specific value for the channel
- * @flags: channel flags from &enum ieee80211_channel_flags.
- * @orig_flags: channel flags at registration time, used by regulatory
- * code to support devices with additional restrictions
- * @band: band this channel belongs to.
- * @max_antenna_gain: maximum antenna gain in dBi
- * @max_power: maximum transmission power (in dBm)
- * @orig_mag: internal use
- * @orig_mpwr: internal use
- */
-struct ieee80211_channel {
- enum ieee80211_band band;
- u16 center_freq;
- u16 hw_value;
- u32 flags;
- int max_antenna_gain;
- int max_power;
- u32 orig_flags;
- int orig_mag, orig_mpwr;
-};
-
-/**
- * enum ieee80211_rate_flags - rate flags
- *
- * Hardware/specification flags for rates. These are structured
- * in a way that allows using the same bitrate structure for
- * different bands/PHY modes.
- *
- * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
- * preamble on this bitrate; only relevant in 2.4GHz band and
- * with CCK rates.
- * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
- * when used with 802.11a (on the 5 GHz band); filled by the
- * core code when registering the wiphy.
- * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
- * when used with 802.11b (on the 2.4 GHz band); filled by the
- * core code when registering the wiphy.
- * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
- * when used with 802.11g (on the 2.4 GHz band); filled by the
- * core code when registering the wiphy.
- * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
- */
-enum ieee80211_rate_flags {
- IEEE80211_RATE_SHORT_PREAMBLE = 1<<0,
- IEEE80211_RATE_MANDATORY_A = 1<<1,
- IEEE80211_RATE_MANDATORY_B = 1<<2,
- IEEE80211_RATE_MANDATORY_G = 1<<3,
- IEEE80211_RATE_ERP_G = 1<<4,
-};
-
-/**
- * struct ieee80211_rate - bitrate definition
- *
- * This structure describes a bitrate that an 802.11 PHY can
- * operate with. The two values @hw_value and @hw_value_short
- * are only for driver use when pointers to this structure are
- * passed around.
- *
- * @flags: rate-specific flags
- * @bitrate: bitrate in units of 100 Kbps
- * @hw_value: driver/hardware value for this rate
- * @hw_value_short: driver/hardware value for this rate when
- * short preamble is used
- */
-struct ieee80211_rate {
- u32 flags;
- u16 bitrate;
- u16 hw_value, hw_value_short;
-};
-
-/**
- * struct ieee80211_ht_info - describing STA's HT capabilities
- *
- * This structure describes most essential parameters needed
- * to describe 802.11n HT capabilities for an STA.
- *
- * @ht_supported: is HT supported by STA, 0: no, 1: yes
- * @cap: HT capabilities map as described in 802.11n spec
- * @ampdu_factor: Maximum A-MPDU length factor
- * @ampdu_density: Minimum A-MPDU spacing
- * @supp_mcs_set: Supported MCS set as described in 802.11n spec
- */
-struct ieee80211_ht_info {
- u16 cap; /* use IEEE80211_HT_CAP_ */
- u8 ht_supported;
- u8 ampdu_factor;
- u8 ampdu_density;
- u8 supp_mcs_set[16];
-};
-
-/**
- * struct ieee80211_supported_band - frequency band definition
- *
- * This structure describes a frequency band a wiphy
- * is able to operate in.
- *
- * @channels: Array of channels the hardware can operate in
- * in this band.
- * @band: the band this structure represents
- * @n_channels: Number of channels in @channels
- * @bitrates: Array of bitrates the hardware can operate with
- * in this band. Must be sorted to give a valid "supported
- * rates" IE, i.e. CCK rates first, then OFDM.
- * @n_bitrates: Number of bitrates in @bitrates
- */
-struct ieee80211_supported_band {
- struct ieee80211_channel *channels;
- struct ieee80211_rate *bitrates;
- enum ieee80211_band band;
- int n_channels;
- int n_bitrates;
- struct ieee80211_ht_info ht_info;
-};
-
-/**
- * struct wiphy - wireless hardware description
- * @idx: the wiphy index assigned to this item
- * @class_dev: the class device representing /sys/class/ieee80211/<wiphy-name>
- */
-struct wiphy {
- /* assign these fields before you register the wiphy */
-
- /* permanent MAC address */
- u8 perm_addr[ETH_ALEN];
-
- /* If multiple wiphys are registered and you're handed e.g.
- * a regular netdev with assigned ieee80211_ptr, you won't
- * know whether it points to a wiphy your driver has registered
- * or not. Assign this to something global to your driver to
- * help determine whether you own this wiphy or not. */
- void *privid;
-
- struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS];
-
- /* fields below are read-only, assigned by cfg80211 */
-
- /* the item in /sys/class/ieee80211/ points to this,
- * you need use set_wiphy_dev() (see below) */
- struct device dev;
-
- /* dir in debugfs: ieee80211/<wiphyname> */
- struct dentry *debugfsdir;
-
- char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
-};
-
-/** struct wireless_dev - wireless per-netdev state
- *
- * This structure must be allocated by the driver/stack
- * that uses the ieee80211_ptr field in struct net_device
- * (this is intentional so it can be allocated along with
- * the netdev.)
- *
- * @wiphy: pointer to hardware description
- */
-struct wireless_dev {
- struct wiphy *wiphy;
-
- /* private to the generic wireless code */
- struct list_head list;
- struct net_device *netdev;
-};
-
-/**
- * wiphy_priv - return priv from wiphy
- */
-static inline void *wiphy_priv(struct wiphy *wiphy)
-{
- BUG_ON(!wiphy);
- return &wiphy->priv;
-}
-
-/**
- * set_wiphy_dev - set device pointer for wiphy
- */
-static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev)
-{
- wiphy->dev.parent = dev;
-}
-
-/**
- * wiphy_dev - get wiphy dev pointer
- */
-static inline struct device *wiphy_dev(struct wiphy *wiphy)
-{
- return wiphy->dev.parent;
-}
-
-/**
- * wiphy_name - get wiphy name
- */
-static inline char *wiphy_name(struct wiphy *wiphy)
-{
- return wiphy->dev.bus_id;
-}
-
-/**
- * wdev_priv - return wiphy priv from wireless_dev
- */
-static inline void *wdev_priv(struct wireless_dev *wdev)
-{
- BUG_ON(!wdev);
- return wiphy_priv(wdev->wiphy);
-}
-
-/**
- * wiphy_new - create a new wiphy for use with cfg80211
- *
- * create a new wiphy and associate the given operations with it.
- * @sizeof_priv bytes are allocated for private use.
- *
- * the returned pointer must be assigned to each netdev's
- * ieee80211_ptr for proper operation.
- */
-struct wiphy *wiphy_new(struct cfg80211_ops *ops, int sizeof_priv);
-
-/**
- * wiphy_register - register a wiphy with cfg80211
- *
- * register the given wiphy
- *
- * Returns a non-negative wiphy index or a negative error code.
- */
-extern int wiphy_register(struct wiphy *wiphy);
-
-/**
- * wiphy_unregister - deregister a wiphy from cfg80211
- *
- * unregister a device with the given priv pointer.
- * After this call, no more requests can be made with this priv
- * pointer, but the call may sleep to wait for an outstanding
- * request that is being handled.
- */
-extern void wiphy_unregister(struct wiphy *wiphy);
-
-/**
- * wiphy_free - free wiphy
- */
-extern void wiphy_free(struct wiphy *wiphy);
-
-/**
- * ieee80211_channel_to_frequency - convert channel number to frequency
- */
-extern int ieee80211_channel_to_frequency(int chan);
-
-/**
- * ieee80211_frequency_to_channel - convert frequency to channel number
- */
-extern int ieee80211_frequency_to_channel(int freq);
-
-#endif /* __NET_WIRELESS_H */
+++ /dev/null
-config MAC80211
- tristate "Generic IEEE 802.11 Networking Stack (mac80211)"
- select CRYPTO
- select CRYPTO_ECB
- select CRYPTO_ARC4
- select CRYPTO_AES
- select CRC32
- select WIRELESS_EXT
- select CFG80211
- select NET_SCH_FIFO
- ---help---
- This option enables the hardware independent IEEE 802.11
- networking stack.
-
-menu "Rate control algorithm selection"
- depends on MAC80211 != n
-
-choice
- prompt "Default rate control algorithm"
- default MAC80211_RC_DEFAULT_PID
- ---help---
- This option selects the default rate control algorithm
- mac80211 will use. Note that this default can still be
- overriden through the ieee80211_default_rc_algo module
- parameter if different algorithms are available.
-
-config MAC80211_RC_DEFAULT_PID
- bool "PID controller based rate control algorithm"
- select MAC80211_RC_PID
- ---help---
- Select the PID controller based rate control as the
- default rate control algorithm. You should choose
- this unless you know what you are doing.
-
-config MAC80211_RC_DEFAULT_SIMPLE
- bool "Simple rate control algorithm"
- select MAC80211_RC_SIMPLE
- ---help---
- Select the simple rate control as the default rate
- control algorithm. Note that this is a non-responsive,
- dumb algorithm. You should choose the PID rate control
- instead.
-
-config MAC80211_RC_DEFAULT_NONE
- bool "No default algorithm"
- depends on EMBEDDED
- help
- Selecting this option will select no default algorithm
- and allow you to not build any. Do not choose this
- option unless you know your driver comes with another
- suitable algorithm.
-endchoice
-
-comment "Selecting 'y' for an algorithm will"
-comment "build the algorithm into mac80211."
-
-config MAC80211_RC_DEFAULT
- string
- default "pid" if MAC80211_RC_DEFAULT_PID
- default "simple" if MAC80211_RC_DEFAULT_SIMPLE
- default ""
-
-config MAC80211_RC_PID
- tristate "PID controller based rate control algorithm"
- ---help---
- This option enables a TX rate control algorithm for
- mac80211 that uses a PID controller to select the TX
- rate.
-
- Say Y or M unless you're sure you want to use a
- different rate control algorithm.
-
-config MAC80211_RC_SIMPLE
- tristate "Simple rate control algorithm (DEPRECATED)"
- ---help---
- This option enables a very simple, non-responsive TX
- rate control algorithm. This algorithm is deprecated
- and will be removed from the kernel in the near future.
- It has been replaced by the PID algorithm.
-
- Say N unless you know what you are doing.
-endmenu
-
-config MAC80211_LEDS
- bool "Enable LED triggers"
- depends on MAC80211 && LEDS_TRIGGERS
- ---help---
- This option enables a few LED triggers for different
- packet receive/transmit events.
-
-config MAC80211_DEBUGFS
- bool "Export mac80211 internals in DebugFS"
- depends on MAC80211 && DEBUG_FS
- ---help---
- Select this to see extensive information about
- the internal state of mac80211 in debugfs.
-
- Say N unless you know you need this.
-
-config MAC80211_DEBUG_PACKET_ALIGNMENT
- bool "Enable packet alignment debugging"
- depends on MAC80211
- help
- This option is recommended for driver authors and strongly
- discouraged for everybody else, it will trigger a warning
- when a driver hands mac80211 a buffer that is aligned in
- a way that will cause problems with the IP stack on some
- architectures.
-
- Say N unless you're writing a mac80211 based driver.
-
-config MAC80211_DEBUG
- bool "Enable debugging output"
- depends on MAC80211
- ---help---
- This option will enable debug tracing output for the
- ieee80211 network stack.
-
- If you are not trying to debug or develop the ieee80211
- subsystem, you most likely want to say N here.
-
-config MAC80211_HT_DEBUG
- bool "Enable HT debugging output"
- depends on MAC80211_DEBUG
- ---help---
- This option enables 802.11n High Throughput features
- debug tracing output.
-
- If you are not trying to debug of develop the ieee80211
- subsystem, you most likely want to say N here.
-
-config MAC80211_VERBOSE_DEBUG
- bool "Verbose debugging output"
- depends on MAC80211_DEBUG
-
-config MAC80211_LOWTX_FRAME_DUMP
- bool "Debug frame dumping"
- depends on MAC80211_DEBUG
- ---help---
- Selecting this option will cause the stack to
- print a message for each frame that is handed
- to the lowlevel driver for transmission. This
- message includes all MAC addresses and the
- frame control field.
-
- If unsure, say N and insert the debugging code
- you require into the driver you are debugging.
-
-config TKIP_DEBUG
- bool "TKIP debugging"
- depends on MAC80211_DEBUG
-
-config MAC80211_DEBUG_COUNTERS
- bool "Extra statistics for TX/RX debugging"
- depends on MAC80211_DEBUG
-
-config MAC80211_IBSS_DEBUG
- bool "Support for IBSS testing"
- depends on MAC80211_DEBUG
- ---help---
- Say Y here if you intend to debug the IBSS code.
-
-config MAC80211_VERBOSE_PS_DEBUG
- bool "Verbose powersave mode debugging"
- depends on MAC80211_DEBUG
- ---help---
- Say Y here to print out verbose powersave
- mode debug messages.
+++ /dev/null
-obj-$(CONFIG_MAC80211) += mac80211.o
-
-# objects for PID algorithm
-rc80211_pid-y := rc80211_pid_algo.o
-rc80211_pid-$(CONFIG_MAC80211_DEBUGFS) += rc80211_pid_debugfs.o
-
-# build helper for PID algorithm
-rc-pid-y := $(rc80211_pid-y)
-rc-pid-m := rc80211_pid.o
-
-# mac80211 objects
-mac80211-y := \
- ieee80211.o \
- ieee80211_ioctl.o \
- sta_info.o \
- wep.o \
- wpa.o \
- ieee80211_sta.o \
- ieee80211_iface.o \
- ieee80211_rate.o \
- michael.o \
- tkip.o \
- aes_ccm.o \
- cfg.o \
- rx.o \
- tx.o \
- key.o \
- util.o \
- event.o
-
-mac80211-$(CONFIG_MAC80211_LEDS) += ieee80211_led.o
-mac80211-$(CONFIG_NET_SCHED) += wme.o
-mac80211-$(CONFIG_MAC80211_DEBUGFS) += \
- debugfs.o \
- debugfs_sta.o \
- debugfs_netdev.o \
- debugfs_key.o
-
-
-# Build rate control algorithm(s)
-CFLAGS_rc80211_simple.o += -DRC80211_SIMPLE_COMPILE
-CFLAGS_rc80211_pid_algo.o += -DRC80211_PID_COMPILE
-mac80211-$(CONFIG_MAC80211_RC_SIMPLE) += rc80211_simple.o
-mac80211-$(CONFIG_MAC80211_RC_PID) += $(rc-pid-$(CONFIG_MAC80211_RC_PID))
-
-# Modular rate algorithms are assigned to mac80211-m - make separate modules
-obj-m += $(mac80211-m)
+++ /dev/null
-/*
- * Copyright 2003-2004, Instant802 Networks, Inc.
- * Copyright 2005-2006, Devicescape Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/crypto.h>
-#include <linux/err.h>
-
-#include <net/mac80211.h>
-#include "ieee80211_key.h"
-#include "aes_ccm.h"
-
-
-static void ieee80211_aes_encrypt(struct crypto_cipher *tfm,
- const u8 pt[16], u8 ct[16])
-{
- crypto_cipher_encrypt_one(tfm, ct, pt);
-}
-
-
-static inline void aes_ccm_prepare(struct crypto_cipher *tfm, u8 *b_0, u8 *aad,
- u8 *b, u8 *s_0, u8 *a)
-{
- int i;
-
- ieee80211_aes_encrypt(tfm, b_0, b);
-
- /* Extra Authenticate-only data (always two AES blocks) */
- for (i = 0; i < AES_BLOCK_LEN; i++)
- aad[i] ^= b[i];
- ieee80211_aes_encrypt(tfm, aad, b);
-
- aad += AES_BLOCK_LEN;
-
- for (i = 0; i < AES_BLOCK_LEN; i++)
- aad[i] ^= b[i];
- ieee80211_aes_encrypt(tfm, aad, a);
-
- /* Mask out bits from auth-only-b_0 */
- b_0[0] &= 0x07;
-
- /* S_0 is used to encrypt T (= MIC) */
- b_0[14] = 0;
- b_0[15] = 0;
- ieee80211_aes_encrypt(tfm, b_0, s_0);
-}
-
-
-void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch,
- u8 *b_0, u8 *aad, u8 *data, size_t data_len,
- u8 *cdata, u8 *mic)
-{
- int i, j, last_len, num_blocks;
- u8 *pos, *cpos, *b, *s_0, *e;
-
- b = scratch;
- s_0 = scratch + AES_BLOCK_LEN;
- e = scratch + 2 * AES_BLOCK_LEN;
-
- num_blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN);
- last_len = data_len % AES_BLOCK_LEN;
- aes_ccm_prepare(tfm, b_0, aad, b, s_0, b);
-
- /* Process payload blocks */
- pos = data;
- cpos = cdata;
- for (j = 1; j <= num_blocks; j++) {
- int blen = (j == num_blocks && last_len) ?
- last_len : AES_BLOCK_LEN;
-
- /* Authentication followed by encryption */
- for (i = 0; i < blen; i++)
- b[i] ^= pos[i];
- ieee80211_aes_encrypt(tfm, b, b);
-
- b_0[14] = (j >> 8) & 0xff;
- b_0[15] = j & 0xff;
- ieee80211_aes_encrypt(tfm, b_0, e);
- for (i = 0; i < blen; i++)
- *cpos++ = *pos++ ^ e[i];
- }
-
- for (i = 0; i < CCMP_MIC_LEN; i++)
- mic[i] = b[i] ^ s_0[i];
-}
-
-
-int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch,
- u8 *b_0, u8 *aad, u8 *cdata, size_t data_len,
- u8 *mic, u8 *data)
-{
- int i, j, last_len, num_blocks;
- u8 *pos, *cpos, *b, *s_0, *a;
-
- b = scratch;
- s_0 = scratch + AES_BLOCK_LEN;
- a = scratch + 2 * AES_BLOCK_LEN;
-
- num_blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN);
- last_len = data_len % AES_BLOCK_LEN;
- aes_ccm_prepare(tfm, b_0, aad, b, s_0, a);
-
- /* Process payload blocks */
- cpos = cdata;
- pos = data;
- for (j = 1; j <= num_blocks; j++) {
- int blen = (j == num_blocks && last_len) ?
- last_len : AES_BLOCK_LEN;
-
- /* Decryption followed by authentication */
- b_0[14] = (j >> 8) & 0xff;
- b_0[15] = j & 0xff;
- ieee80211_aes_encrypt(tfm, b_0, b);
- for (i = 0; i < blen; i++) {
- *pos = *cpos++ ^ b[i];
- a[i] ^= *pos++;
- }
-
- ieee80211_aes_encrypt(tfm, a, a);
- }
-
- for (i = 0; i < CCMP_MIC_LEN; i++) {
- if ((mic[i] ^ s_0[i]) != a[i])
- return -1;
- }
-
- return 0;
-}
-
-
-struct crypto_cipher * ieee80211_aes_key_setup_encrypt(const u8 key[])
-{
- struct crypto_cipher *tfm;
-
- tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
- if (IS_ERR(tfm))
- return NULL;
-
- crypto_cipher_setkey(tfm, key, ALG_CCMP_KEY_LEN);
-
- return tfm;
-}
-
-
-void ieee80211_aes_key_free(struct crypto_cipher *tfm)
-{
- if (tfm)
- crypto_free_cipher(tfm);
-}
+++ /dev/null
-/*
- * Copyright 2003-2004, Instant802 Networks, Inc.
- * Copyright 2006, Devicescape Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef AES_CCM_H
-#define AES_CCM_H
-
-#include <linux/crypto.h>
-
-#define AES_BLOCK_LEN 16
-
-struct crypto_cipher * ieee80211_aes_key_setup_encrypt(const u8 key[]);
-void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch,
- u8 *b_0, u8 *aad, u8 *data, size_t data_len,
- u8 *cdata, u8 *mic);
-int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch,
- u8 *b_0, u8 *aad, u8 *cdata, size_t data_len,
- u8 *mic, u8 *data);
-void ieee80211_aes_key_free(struct crypto_cipher *tfm);
-
-#endif /* AES_CCM_H */
+++ /dev/null
-/*
- * mac80211 configuration hooks for cfg80211
- *
- * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
- *
- * This file is GPLv2 as found in COPYING.
- */
-
-#include <linux/ieee80211.h>
-#include <linux/nl80211.h>
-#include <linux/rtnetlink.h>
-#include <net/net_namespace.h>
-#include <linux/rcupdate.h>
-#include <net/cfg80211.h>
-#include "ieee80211_i.h"
-#include "cfg.h"
-#include "ieee80211_rate.h"
-
-static enum ieee80211_if_types
-nl80211_type_to_mac80211_type(enum nl80211_iftype type)
-{
- switch (type) {
- case NL80211_IFTYPE_UNSPECIFIED:
- return IEEE80211_IF_TYPE_STA;
- case NL80211_IFTYPE_ADHOC:
- return IEEE80211_IF_TYPE_IBSS;
- case NL80211_IFTYPE_STATION:
- return IEEE80211_IF_TYPE_STA;
- case NL80211_IFTYPE_MONITOR:
- return IEEE80211_IF_TYPE_MNTR;
- default:
- return IEEE80211_IF_TYPE_INVALID;
- }
-}
-
-static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
- enum nl80211_iftype type, u32 *flags)
-{
- struct ieee80211_local *local = wiphy_priv(wiphy);
- enum ieee80211_if_types itype;
- struct net_device *dev;
- struct ieee80211_sub_if_data *sdata;
- int err;
-
- if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
- return -ENODEV;
-
- itype = nl80211_type_to_mac80211_type(type);
- if (itype == IEEE80211_IF_TYPE_INVALID)
- return -EINVAL;
-
- err = ieee80211_if_add(local->mdev, name, &dev, itype);
- if (err || itype != IEEE80211_IF_TYPE_MNTR || !flags)
- return err;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- sdata->u.mntr_flags = *flags;
- return 0;
-}
-
-static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex)
-{
- struct ieee80211_local *local = wiphy_priv(wiphy);
- struct net_device *dev;
- char *name;
-
- if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
- return -ENODEV;
-
- /* we're under RTNL */
- dev = __dev_get_by_index(&init_net, ifindex);
- if (!dev)
- return 0;
-
- name = dev->name;
-
- return ieee80211_if_remove(local->mdev, name, -1);
-}
-
-static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
- enum nl80211_iftype type, u32 *flags)
-{
- struct ieee80211_local *local = wiphy_priv(wiphy);
- struct net_device *dev;
- enum ieee80211_if_types itype;
- struct ieee80211_sub_if_data *sdata;
-
- if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
- return -ENODEV;
-
- /* we're under RTNL */
- dev = __dev_get_by_index(&init_net, ifindex);
- if (!dev)
- return -ENODEV;
-
- if (netif_running(dev))
- return -EBUSY;
-
- itype = nl80211_type_to_mac80211_type(type);
- if (itype == IEEE80211_IF_TYPE_INVALID)
- return -EINVAL;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
- return -EOPNOTSUPP;
-
- ieee80211_if_reinit(dev);
- ieee80211_if_set_type(dev, itype);
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_MNTR || !flags)
- return 0;
-
- sdata->u.mntr_flags = *flags;
- return 0;
-}
-
-static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
- u8 key_idx, u8 *mac_addr,
- struct key_params *params)
-{
- struct ieee80211_sub_if_data *sdata;
- struct sta_info *sta = NULL;
- enum ieee80211_key_alg alg;
- int ret;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- switch (params->cipher) {
- case WLAN_CIPHER_SUITE_WEP40:
- case WLAN_CIPHER_SUITE_WEP104:
- alg = ALG_WEP;
- break;
- case WLAN_CIPHER_SUITE_TKIP:
- alg = ALG_TKIP;
- break;
- case WLAN_CIPHER_SUITE_CCMP:
- alg = ALG_CCMP;
- break;
- default:
- return -EINVAL;
- }
-
- if (mac_addr) {
- sta = sta_info_get(sdata->local, mac_addr);
- if (!sta)
- return -ENOENT;
- }
-
- ret = 0;
- if (!ieee80211_key_alloc(sdata, sta, alg, key_idx,
- params->key_len, params->key))
- ret = -ENOMEM;
-
- if (sta)
- sta_info_put(sta);
-
- return ret;
-}
-
-static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
- u8 key_idx, u8 *mac_addr)
-{
- struct ieee80211_sub_if_data *sdata;
- struct sta_info *sta;
- int ret;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (mac_addr) {
- sta = sta_info_get(sdata->local, mac_addr);
- if (!sta)
- return -ENOENT;
-
- ret = 0;
- if (sta->key)
- ieee80211_key_free(sta->key);
- else
- ret = -ENOENT;
-
- sta_info_put(sta);
- return ret;
- }
-
- if (!sdata->keys[key_idx])
- return -ENOENT;
-
- ieee80211_key_free(sdata->keys[key_idx]);
-
- return 0;
-}
-
-static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
- u8 key_idx, u8 *mac_addr, void *cookie,
- void (*callback)(void *cookie,
- struct key_params *params))
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct sta_info *sta = NULL;
- u8 seq[6] = {0};
- struct key_params params;
- struct ieee80211_key *key;
- u32 iv32;
- u16 iv16;
- int err = -ENOENT;
-
- if (mac_addr) {
- sta = sta_info_get(sdata->local, mac_addr);
- if (!sta)
- goto out;
-
- key = sta->key;
- } else
- key = sdata->keys[key_idx];
-
- if (!key)
- goto out;
-
- memset(¶ms, 0, sizeof(params));
-
- switch (key->conf.alg) {
- case ALG_TKIP:
- params.cipher = WLAN_CIPHER_SUITE_TKIP;
-
- iv32 = key->u.tkip.iv32;
- iv16 = key->u.tkip.iv16;
-
- if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
- sdata->local->ops->get_tkip_seq)
- sdata->local->ops->get_tkip_seq(
- local_to_hw(sdata->local),
- key->conf.hw_key_idx,
- &iv32, &iv16);
-
- seq[0] = iv16 & 0xff;
- seq[1] = (iv16 >> 8) & 0xff;
- seq[2] = iv32 & 0xff;
- seq[3] = (iv32 >> 8) & 0xff;
- seq[4] = (iv32 >> 16) & 0xff;
- seq[5] = (iv32 >> 24) & 0xff;
- params.seq = seq;
- params.seq_len = 6;
- break;
- case ALG_CCMP:
- params.cipher = WLAN_CIPHER_SUITE_CCMP;
- seq[0] = key->u.ccmp.tx_pn[5];
- seq[1] = key->u.ccmp.tx_pn[4];
- seq[2] = key->u.ccmp.tx_pn[3];
- seq[3] = key->u.ccmp.tx_pn[2];
- seq[4] = key->u.ccmp.tx_pn[1];
- seq[5] = key->u.ccmp.tx_pn[0];
- params.seq = seq;
- params.seq_len = 6;
- break;
- case ALG_WEP:
- if (key->conf.keylen == 5)
- params.cipher = WLAN_CIPHER_SUITE_WEP40;
- else
- params.cipher = WLAN_CIPHER_SUITE_WEP104;
- break;
- }
-
- params.key = key->conf.key;
- params.key_len = key->conf.keylen;
-
- callback(cookie, ¶ms);
- err = 0;
-
- out:
- if (sta)
- sta_info_put(sta);
- return err;
-}
-
-static int ieee80211_config_default_key(struct wiphy *wiphy,
- struct net_device *dev,
- u8 key_idx)
-{
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- ieee80211_set_default_key(sdata, key_idx);
-
- return 0;
-}
-
-static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
- u8 *mac, struct station_stats *stats)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
-
- sta = sta_info_get(local, mac);
- if (!sta)
- return -ENOENT;
-
- /* XXX: verify sta->dev == dev */
-
- stats->filled = STATION_STAT_INACTIVE_TIME |
- STATION_STAT_RX_BYTES |
- STATION_STAT_TX_BYTES;
-
- stats->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
- stats->rx_bytes = sta->rx_bytes;
- stats->tx_bytes = sta->tx_bytes;
-
- sta_info_put(sta);
-
- return 0;
-}
-
-/*
- * This handles both adding a beacon and setting new beacon info
- */
-static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
- struct beacon_parameters *params)
-{
- struct beacon_data *new, *old;
- int new_head_len, new_tail_len;
- int size;
- int err = -EINVAL;
-
- old = sdata->u.ap.beacon;
-
- /* head must not be zero-length */
- if (params->head && !params->head_len)
- return -EINVAL;
-
- /*
- * This is a kludge. beacon interval should really be part
- * of the beacon information.
- */
- if (params->interval) {
- sdata->local->hw.conf.beacon_int = params->interval;
- if (ieee80211_hw_config(sdata->local))
- return -EINVAL;
- /*
- * We updated some parameter so if below bails out
- * it's not an error.
- */
- err = 0;
- }
-
- /* Need to have a beacon head if we don't have one yet */
- if (!params->head && !old)
- return err;
-
- /* sorry, no way to start beaconing without dtim period */
- if (!params->dtim_period && !old)
- return err;
-
- /* new or old head? */
- if (params->head)
- new_head_len = params->head_len;
- else
- new_head_len = old->head_len;
-
- /* new or old tail? */
- if (params->tail || !old)
- /* params->tail_len will be zero for !params->tail */
- new_tail_len = params->tail_len;
- else
- new_tail_len = old->tail_len;
-
- size = sizeof(*new) + new_head_len + new_tail_len;
-
- new = kzalloc(size, GFP_KERNEL);
- if (!new)
- return -ENOMEM;
-
- /* start filling the new info now */
-
- /* new or old dtim period? */
- if (params->dtim_period)
- new->dtim_period = params->dtim_period;
- else
- new->dtim_period = old->dtim_period;
-
- /*
- * pointers go into the block we allocated,
- * memory is | beacon_data | head | tail |
- */
- new->head = ((u8 *) new) + sizeof(*new);
- new->tail = new->head + new_head_len;
- new->head_len = new_head_len;
- new->tail_len = new_tail_len;
-
- /* copy in head */
- if (params->head)
- memcpy(new->head, params->head, new_head_len);
- else
- memcpy(new->head, old->head, new_head_len);
-
- /* copy in optional tail */
- if (params->tail)
- memcpy(new->tail, params->tail, new_tail_len);
- else
- if (old)
- memcpy(new->tail, old->tail, new_tail_len);
-
- rcu_assign_pointer(sdata->u.ap.beacon, new);
-
- synchronize_rcu();
-
- kfree(old);
-
- return ieee80211_if_config_beacon(sdata->dev);
-}
-
-static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
- struct beacon_parameters *params)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct beacon_data *old;
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_AP)
- return -EINVAL;
-
- old = sdata->u.ap.beacon;
-
- if (old)
- return -EALREADY;
-
- return ieee80211_config_beacon(sdata, params);
-}
-
-static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
- struct beacon_parameters *params)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct beacon_data *old;
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_AP)
- return -EINVAL;
-
- old = sdata->u.ap.beacon;
-
- if (!old)
- return -ENOENT;
-
- return ieee80211_config_beacon(sdata, params);
-}
-
-static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct beacon_data *old;
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_AP)
- return -EINVAL;
-
- old = sdata->u.ap.beacon;
-
- if (!old)
- return -ENOENT;
-
- rcu_assign_pointer(sdata->u.ap.beacon, NULL);
- synchronize_rcu();
- kfree(old);
-
- return ieee80211_if_config_beacon(dev);
-}
-
-/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
-struct iapp_layer2_update {
- u8 da[ETH_ALEN]; /* broadcast */
- u8 sa[ETH_ALEN]; /* STA addr */
- __be16 len; /* 6 */
- u8 dsap; /* 0 */
- u8 ssap; /* 0 */
- u8 control;
- u8 xid_info[3];
-} __attribute__ ((packed));
-
-static void ieee80211_send_layer2_update(struct sta_info *sta)
-{
- struct iapp_layer2_update *msg;
- struct sk_buff *skb;
-
- /* Send Level 2 Update Frame to update forwarding tables in layer 2
- * bridge devices */
-
- skb = dev_alloc_skb(sizeof(*msg));
- if (!skb)
- return;
- msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
-
- /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
- * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
-
- memset(msg->da, 0xff, ETH_ALEN);
- memcpy(msg->sa, sta->addr, ETH_ALEN);
- msg->len = htons(6);
- msg->dsap = 0;
- msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
- msg->control = 0xaf; /* XID response lsb.1111F101.
- * F=0 (no poll command; unsolicited frame) */
- msg->xid_info[0] = 0x81; /* XID format identifier */
- msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
- msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
-
- skb->dev = sta->dev;
- skb->protocol = eth_type_trans(skb, sta->dev);
- memset(skb->cb, 0, sizeof(skb->cb));
- netif_rx(skb);
-}
-
-static void sta_apply_parameters(struct ieee80211_local *local,
- struct sta_info *sta,
- struct station_parameters *params)
-{
- u32 rates;
- int i, j;
- struct ieee80211_supported_band *sband;
-
- if (params->station_flags & STATION_FLAG_CHANGED) {
- sta->flags &= ~WLAN_STA_AUTHORIZED;
- if (params->station_flags & STATION_FLAG_AUTHORIZED)
- sta->flags |= WLAN_STA_AUTHORIZED;
-
- sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
- if (params->station_flags & STATION_FLAG_SHORT_PREAMBLE)
- sta->flags |= WLAN_STA_SHORT_PREAMBLE;
-
- sta->flags &= ~WLAN_STA_WME;
- if (params->station_flags & STATION_FLAG_WME)
- sta->flags |= WLAN_STA_WME;
- }
-
- if (params->aid) {
- sta->aid = params->aid;
- if (sta->aid > IEEE80211_MAX_AID)
- sta->aid = 0; /* XXX: should this be an error? */
- }
-
- if (params->listen_interval >= 0)
- sta->listen_interval = params->listen_interval;
-
- if (params->supported_rates) {
- rates = 0;
- sband = local->hw.wiphy->bands[local->oper_channel->band];
-
- for (i = 0; i < params->supported_rates_len; i++) {
- int rate = (params->supported_rates[i] & 0x7f) * 5;
- for (j = 0; j < sband->n_bitrates; j++) {
- if (sband->bitrates[j].bitrate == rate)
- rates |= BIT(j);
- }
- }
- sta->supp_rates[local->oper_channel->band] = rates;
- }
-}
-
-static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
- u8 *mac, struct station_parameters *params)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
- struct ieee80211_sub_if_data *sdata;
-
- /* Prevent a race with changing the rate control algorithm */
- if (!netif_running(dev))
- return -ENETDOWN;
-
- /* XXX: get sta belonging to dev */
- sta = sta_info_get(local, mac);
- if (sta) {
- sta_info_put(sta);
- return -EEXIST;
- }
-
- if (params->vlan) {
- sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_VLAN ||
- sdata->vif.type != IEEE80211_IF_TYPE_AP)
- return -EINVAL;
- } else
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- sta = sta_info_add(local, dev, mac, GFP_KERNEL);
- if (!sta)
- return -ENOMEM;
-
- sta->dev = sdata->dev;
- if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN ||
- sdata->vif.type == IEEE80211_IF_TYPE_AP)
- ieee80211_send_layer2_update(sta);
-
- sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
-
- sta_apply_parameters(local, sta, params);
-
- rate_control_rate_init(sta, local);
-
- sta_info_put(sta);
-
- return 0;
-}
-
-static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
- u8 *mac)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
-
- if (mac) {
- /* XXX: get sta belonging to dev */
- sta = sta_info_get(local, mac);
- if (!sta)
- return -ENOENT;
-
- sta_info_free(sta);
- sta_info_put(sta);
- } else
- sta_info_flush(local, dev);
-
- return 0;
-}
-
-static int ieee80211_change_station(struct wiphy *wiphy,
- struct net_device *dev,
- u8 *mac,
- struct station_parameters *params)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
- struct ieee80211_sub_if_data *vlansdata;
-
- /* XXX: get sta belonging to dev */
- sta = sta_info_get(local, mac);
- if (!sta)
- return -ENOENT;
-
- if (params->vlan && params->vlan != sta->dev) {
- vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
-
- if (vlansdata->vif.type != IEEE80211_IF_TYPE_VLAN ||
- vlansdata->vif.type != IEEE80211_IF_TYPE_AP)
- return -EINVAL;
-
- sta->dev = params->vlan;
- ieee80211_send_layer2_update(sta);
- }
-
- sta_apply_parameters(local, sta, params);
-
- sta_info_put(sta);
-
- return 0;
-}
-
-struct cfg80211_ops mac80211_config_ops = {
- .add_virtual_intf = ieee80211_add_iface,
- .del_virtual_intf = ieee80211_del_iface,
- .change_virtual_intf = ieee80211_change_iface,
- .add_key = ieee80211_add_key,
- .del_key = ieee80211_del_key,
- .get_key = ieee80211_get_key,
- .set_default_key = ieee80211_config_default_key,
- .add_beacon = ieee80211_add_beacon,
- .set_beacon = ieee80211_set_beacon,
- .del_beacon = ieee80211_del_beacon,
- .add_station = ieee80211_add_station,
- .del_station = ieee80211_del_station,
- .change_station = ieee80211_change_station,
- .get_station = ieee80211_get_station,
-};
+++ /dev/null
-/*
- * mac80211 configuration hooks for cfg80211
- */
-#ifndef __CFG_H
-#define __CFG_H
-
-extern struct cfg80211_ops mac80211_config_ops;
-
-#endif /* __CFG_H */
+++ /dev/null
-/*
- * mac80211 debugfs for wireless PHYs
- *
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- *
- * GPLv2
- *
- */
-
-#include <linux/debugfs.h>
-#include <linux/rtnetlink.h>
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-#include "debugfs.h"
-
-int mac80211_open_file_generic(struct inode *inode, struct file *file)
-{
- file->private_data = inode->i_private;
- return 0;
-}
-
-#define DEBUGFS_READONLY_FILE(name, buflen, fmt, value...) \
-static ssize_t name## _read(struct file *file, char __user *userbuf, \
- size_t count, loff_t *ppos) \
-{ \
- struct ieee80211_local *local = file->private_data; \
- char buf[buflen]; \
- int res; \
- \
- res = scnprintf(buf, buflen, fmt "\n", ##value); \
- return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
-} \
- \
-static const struct file_operations name## _ops = { \
- .read = name## _read, \
- .open = mac80211_open_file_generic, \
-};
-
-#define DEBUGFS_ADD(name) \
- local->debugfs.name = debugfs_create_file(#name, 0444, phyd, \
- local, &name## _ops);
-
-#define DEBUGFS_DEL(name) \
- debugfs_remove(local->debugfs.name); \
- local->debugfs.name = NULL;
-
-
-DEBUGFS_READONLY_FILE(frequency, 20, "%d",
- local->hw.conf.channel->center_freq);
-DEBUGFS_READONLY_FILE(antenna_sel_tx, 20, "%d",
- local->hw.conf.antenna_sel_tx);
-DEBUGFS_READONLY_FILE(antenna_sel_rx, 20, "%d",
- local->hw.conf.antenna_sel_rx);
-DEBUGFS_READONLY_FILE(bridge_packets, 20, "%d",
- local->bridge_packets);
-DEBUGFS_READONLY_FILE(rts_threshold, 20, "%d",
- local->rts_threshold);
-DEBUGFS_READONLY_FILE(fragmentation_threshold, 20, "%d",
- local->fragmentation_threshold);
-DEBUGFS_READONLY_FILE(short_retry_limit, 20, "%d",
- local->short_retry_limit);
-DEBUGFS_READONLY_FILE(long_retry_limit, 20, "%d",
- local->long_retry_limit);
-DEBUGFS_READONLY_FILE(total_ps_buffered, 20, "%d",
- local->total_ps_buffered);
-DEBUGFS_READONLY_FILE(wep_iv, 20, "%#06x",
- local->wep_iv & 0xffffff);
-DEBUGFS_READONLY_FILE(rate_ctrl_alg, 100, "%s",
- local->rate_ctrl ? local->rate_ctrl->ops->name : "<unset>");
-
-/* statistics stuff */
-
-static inline int rtnl_lock_local(struct ieee80211_local *local)
-{
- rtnl_lock();
- if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) {
- rtnl_unlock();
- return -ENODEV;
- }
- return 0;
-}
-
-#define DEBUGFS_STATS_FILE(name, buflen, fmt, value...) \
- DEBUGFS_READONLY_FILE(stats_ ##name, buflen, fmt, ##value)
-
-static ssize_t format_devstat_counter(struct ieee80211_local *local,
- char __user *userbuf,
- size_t count, loff_t *ppos,
- int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf,
- int buflen))
-{
- struct ieee80211_low_level_stats stats;
- char buf[20];
- int res;
-
- if (!local->ops->get_stats)
- return -EOPNOTSUPP;
-
- res = rtnl_lock_local(local);
- if (res)
- return res;
-
- res = local->ops->get_stats(local_to_hw(local), &stats);
- rtnl_unlock();
- if (!res)
- res = printvalue(&stats, buf, sizeof(buf));
- return simple_read_from_buffer(userbuf, count, ppos, buf, res);
-}
-
-#define DEBUGFS_DEVSTATS_FILE(name) \
-static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
- char *buf, int buflen) \
-{ \
- return scnprintf(buf, buflen, "%u\n", stats->name); \
-} \
-static ssize_t stats_ ##name## _read(struct file *file, \
- char __user *userbuf, \
- size_t count, loff_t *ppos) \
-{ \
- return format_devstat_counter(file->private_data, \
- userbuf, \
- count, \
- ppos, \
- print_devstats_##name); \
-} \
- \
-static const struct file_operations stats_ ##name## _ops = { \
- .read = stats_ ##name## _read, \
- .open = mac80211_open_file_generic, \
-};
-
-#define DEBUGFS_STATS_ADD(name) \
- local->debugfs.stats.name = debugfs_create_file(#name, 0444, statsd,\
- local, &stats_ ##name## _ops);
-
-#define DEBUGFS_STATS_DEL(name) \
- debugfs_remove(local->debugfs.stats.name); \
- local->debugfs.stats.name = NULL;
-
-DEBUGFS_STATS_FILE(transmitted_fragment_count, 20, "%u",
- local->dot11TransmittedFragmentCount);
-DEBUGFS_STATS_FILE(multicast_transmitted_frame_count, 20, "%u",
- local->dot11MulticastTransmittedFrameCount);
-DEBUGFS_STATS_FILE(failed_count, 20, "%u",
- local->dot11FailedCount);
-DEBUGFS_STATS_FILE(retry_count, 20, "%u",
- local->dot11RetryCount);
-DEBUGFS_STATS_FILE(multiple_retry_count, 20, "%u",
- local->dot11MultipleRetryCount);
-DEBUGFS_STATS_FILE(frame_duplicate_count, 20, "%u",
- local->dot11FrameDuplicateCount);
-DEBUGFS_STATS_FILE(received_fragment_count, 20, "%u",
- local->dot11ReceivedFragmentCount);
-DEBUGFS_STATS_FILE(multicast_received_frame_count, 20, "%u",
- local->dot11MulticastReceivedFrameCount);
-DEBUGFS_STATS_FILE(transmitted_frame_count, 20, "%u",
- local->dot11TransmittedFrameCount);
-DEBUGFS_STATS_FILE(wep_undecryptable_count, 20, "%u",
- local->dot11WEPUndecryptableCount);
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
-DEBUGFS_STATS_FILE(tx_handlers_drop, 20, "%u",
- local->tx_handlers_drop);
-DEBUGFS_STATS_FILE(tx_handlers_queued, 20, "%u",
- local->tx_handlers_queued);
-DEBUGFS_STATS_FILE(tx_handlers_drop_unencrypted, 20, "%u",
- local->tx_handlers_drop_unencrypted);
-DEBUGFS_STATS_FILE(tx_handlers_drop_fragment, 20, "%u",
- local->tx_handlers_drop_fragment);
-DEBUGFS_STATS_FILE(tx_handlers_drop_wep, 20, "%u",
- local->tx_handlers_drop_wep);
-DEBUGFS_STATS_FILE(tx_handlers_drop_not_assoc, 20, "%u",
- local->tx_handlers_drop_not_assoc);
-DEBUGFS_STATS_FILE(tx_handlers_drop_unauth_port, 20, "%u",
- local->tx_handlers_drop_unauth_port);
-DEBUGFS_STATS_FILE(rx_handlers_drop, 20, "%u",
- local->rx_handlers_drop);
-DEBUGFS_STATS_FILE(rx_handlers_queued, 20, "%u",
- local->rx_handlers_queued);
-DEBUGFS_STATS_FILE(rx_handlers_drop_nullfunc, 20, "%u",
- local->rx_handlers_drop_nullfunc);
-DEBUGFS_STATS_FILE(rx_handlers_drop_defrag, 20, "%u",
- local->rx_handlers_drop_defrag);
-DEBUGFS_STATS_FILE(rx_handlers_drop_short, 20, "%u",
- local->rx_handlers_drop_short);
-DEBUGFS_STATS_FILE(rx_handlers_drop_passive_scan, 20, "%u",
- local->rx_handlers_drop_passive_scan);
-DEBUGFS_STATS_FILE(tx_expand_skb_head, 20, "%u",
- local->tx_expand_skb_head);
-DEBUGFS_STATS_FILE(tx_expand_skb_head_cloned, 20, "%u",
- local->tx_expand_skb_head_cloned);
-DEBUGFS_STATS_FILE(rx_expand_skb_head, 20, "%u",
- local->rx_expand_skb_head);
-DEBUGFS_STATS_FILE(rx_expand_skb_head2, 20, "%u",
- local->rx_expand_skb_head2);
-DEBUGFS_STATS_FILE(rx_handlers_fragments, 20, "%u",
- local->rx_handlers_fragments);
-DEBUGFS_STATS_FILE(tx_status_drop, 20, "%u",
- local->tx_status_drop);
-
-static ssize_t stats_wme_rx_queue_read(struct file *file,
- char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- struct ieee80211_local *local = file->private_data;
- char buf[NUM_RX_DATA_QUEUES*15], *p = buf;
- int i;
-
- for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
- p += scnprintf(p, sizeof(buf)+buf-p,
- "%u\n", local->wme_rx_queue[i]);
-
- return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf);
-}
-
-static const struct file_operations stats_wme_rx_queue_ops = {
- .read = stats_wme_rx_queue_read,
- .open = mac80211_open_file_generic,
-};
-
-static ssize_t stats_wme_tx_queue_read(struct file *file,
- char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- struct ieee80211_local *local = file->private_data;
- char buf[NUM_TX_DATA_QUEUES*15], *p = buf;
- int i;
-
- for (i = 0; i < NUM_TX_DATA_QUEUES; i++)
- p += scnprintf(p, sizeof(buf)+buf-p,
- "%u\n", local->wme_tx_queue[i]);
-
- return simple_read_from_buffer(userbuf, count, ppos, buf, p-buf);
-}
-
-static const struct file_operations stats_wme_tx_queue_ops = {
- .read = stats_wme_tx_queue_read,
- .open = mac80211_open_file_generic,
-};
-#endif
-
-DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
-DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
-DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
-DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
-
-
-void debugfs_hw_add(struct ieee80211_local *local)
-{
- struct dentry *phyd = local->hw.wiphy->debugfsdir;
- struct dentry *statsd;
-
- if (!phyd)
- return;
-
- local->debugfs.stations = debugfs_create_dir("stations", phyd);
- local->debugfs.keys = debugfs_create_dir("keys", phyd);
-
- DEBUGFS_ADD(frequency);
- DEBUGFS_ADD(antenna_sel_tx);
- DEBUGFS_ADD(antenna_sel_rx);
- DEBUGFS_ADD(bridge_packets);
- DEBUGFS_ADD(rts_threshold);
- DEBUGFS_ADD(fragmentation_threshold);
- DEBUGFS_ADD(short_retry_limit);
- DEBUGFS_ADD(long_retry_limit);
- DEBUGFS_ADD(total_ps_buffered);
- DEBUGFS_ADD(wep_iv);
-
- statsd = debugfs_create_dir("statistics", phyd);
- local->debugfs.statistics = statsd;
-
- /* if the dir failed, don't put all the other things into the root! */
- if (!statsd)
- return;
-
- DEBUGFS_STATS_ADD(transmitted_fragment_count);
- DEBUGFS_STATS_ADD(multicast_transmitted_frame_count);
- DEBUGFS_STATS_ADD(failed_count);
- DEBUGFS_STATS_ADD(retry_count);
- DEBUGFS_STATS_ADD(multiple_retry_count);
- DEBUGFS_STATS_ADD(frame_duplicate_count);
- DEBUGFS_STATS_ADD(received_fragment_count);
- DEBUGFS_STATS_ADD(multicast_received_frame_count);
- DEBUGFS_STATS_ADD(transmitted_frame_count);
- DEBUGFS_STATS_ADD(wep_undecryptable_count);
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- DEBUGFS_STATS_ADD(tx_handlers_drop);
- DEBUGFS_STATS_ADD(tx_handlers_queued);
- DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted);
- DEBUGFS_STATS_ADD(tx_handlers_drop_fragment);
- DEBUGFS_STATS_ADD(tx_handlers_drop_wep);
- DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc);
- DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port);
- DEBUGFS_STATS_ADD(rx_handlers_drop);
- DEBUGFS_STATS_ADD(rx_handlers_queued);
- DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc);
- DEBUGFS_STATS_ADD(rx_handlers_drop_defrag);
- DEBUGFS_STATS_ADD(rx_handlers_drop_short);
- DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan);
- DEBUGFS_STATS_ADD(tx_expand_skb_head);
- DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned);
- DEBUGFS_STATS_ADD(rx_expand_skb_head);
- DEBUGFS_STATS_ADD(rx_expand_skb_head2);
- DEBUGFS_STATS_ADD(rx_handlers_fragments);
- DEBUGFS_STATS_ADD(tx_status_drop);
- DEBUGFS_STATS_ADD(wme_tx_queue);
- DEBUGFS_STATS_ADD(wme_rx_queue);
-#endif
- DEBUGFS_STATS_ADD(dot11ACKFailureCount);
- DEBUGFS_STATS_ADD(dot11RTSFailureCount);
- DEBUGFS_STATS_ADD(dot11FCSErrorCount);
- DEBUGFS_STATS_ADD(dot11RTSSuccessCount);
-}
-
-void debugfs_hw_del(struct ieee80211_local *local)
-{
- DEBUGFS_DEL(frequency);
- DEBUGFS_DEL(antenna_sel_tx);
- DEBUGFS_DEL(antenna_sel_rx);
- DEBUGFS_DEL(bridge_packets);
- DEBUGFS_DEL(rts_threshold);
- DEBUGFS_DEL(fragmentation_threshold);
- DEBUGFS_DEL(short_retry_limit);
- DEBUGFS_DEL(long_retry_limit);
- DEBUGFS_DEL(total_ps_buffered);
- DEBUGFS_DEL(wep_iv);
-
- DEBUGFS_STATS_DEL(transmitted_fragment_count);
- DEBUGFS_STATS_DEL(multicast_transmitted_frame_count);
- DEBUGFS_STATS_DEL(failed_count);
- DEBUGFS_STATS_DEL(retry_count);
- DEBUGFS_STATS_DEL(multiple_retry_count);
- DEBUGFS_STATS_DEL(frame_duplicate_count);
- DEBUGFS_STATS_DEL(received_fragment_count);
- DEBUGFS_STATS_DEL(multicast_received_frame_count);
- DEBUGFS_STATS_DEL(transmitted_frame_count);
- DEBUGFS_STATS_DEL(wep_undecryptable_count);
- DEBUGFS_STATS_DEL(num_scans);
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- DEBUGFS_STATS_DEL(tx_handlers_drop);
- DEBUGFS_STATS_DEL(tx_handlers_queued);
- DEBUGFS_STATS_DEL(tx_handlers_drop_unencrypted);
- DEBUGFS_STATS_DEL(tx_handlers_drop_fragment);
- DEBUGFS_STATS_DEL(tx_handlers_drop_wep);
- DEBUGFS_STATS_DEL(tx_handlers_drop_not_assoc);
- DEBUGFS_STATS_DEL(tx_handlers_drop_unauth_port);
- DEBUGFS_STATS_DEL(rx_handlers_drop);
- DEBUGFS_STATS_DEL(rx_handlers_queued);
- DEBUGFS_STATS_DEL(rx_handlers_drop_nullfunc);
- DEBUGFS_STATS_DEL(rx_handlers_drop_defrag);
- DEBUGFS_STATS_DEL(rx_handlers_drop_short);
- DEBUGFS_STATS_DEL(rx_handlers_drop_passive_scan);
- DEBUGFS_STATS_DEL(tx_expand_skb_head);
- DEBUGFS_STATS_DEL(tx_expand_skb_head_cloned);
- DEBUGFS_STATS_DEL(rx_expand_skb_head);
- DEBUGFS_STATS_DEL(rx_expand_skb_head2);
- DEBUGFS_STATS_DEL(rx_handlers_fragments);
- DEBUGFS_STATS_DEL(tx_status_drop);
- DEBUGFS_STATS_DEL(wme_tx_queue);
- DEBUGFS_STATS_DEL(wme_rx_queue);
-#endif
- DEBUGFS_STATS_DEL(dot11ACKFailureCount);
- DEBUGFS_STATS_DEL(dot11RTSFailureCount);
- DEBUGFS_STATS_DEL(dot11FCSErrorCount);
- DEBUGFS_STATS_DEL(dot11RTSSuccessCount);
-
- debugfs_remove(local->debugfs.statistics);
- local->debugfs.statistics = NULL;
- debugfs_remove(local->debugfs.stations);
- local->debugfs.stations = NULL;
- debugfs_remove(local->debugfs.keys);
- local->debugfs.keys = NULL;
-}
+++ /dev/null
-#ifndef __MAC80211_DEBUGFS_H
-#define __MAC80211_DEBUGFS_H
-
-#ifdef CONFIG_MAC80211_DEBUGFS
-extern void debugfs_hw_add(struct ieee80211_local *local);
-extern void debugfs_hw_del(struct ieee80211_local *local);
-extern int mac80211_open_file_generic(struct inode *inode, struct file *file);
-#else
-static inline void debugfs_hw_add(struct ieee80211_local *local)
-{
- return;
-}
-static inline void debugfs_hw_del(struct ieee80211_local *local) {}
-#endif
-
-#endif /* __MAC80211_DEBUGFS_H */
+++ /dev/null
-/*
- * Copyright 2003-2005 Devicescape Software, Inc.
- * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kobject.h>
-#include "ieee80211_i.h"
-#include "ieee80211_key.h"
-#include "debugfs.h"
-#include "debugfs_key.h"
-
-#define KEY_READ(name, prop, buflen, format_string) \
-static ssize_t key_##name##_read(struct file *file, \
- char __user *userbuf, \
- size_t count, loff_t *ppos) \
-{ \
- char buf[buflen]; \
- struct ieee80211_key *key = file->private_data; \
- int res = scnprintf(buf, buflen, format_string, key->prop); \
- return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
-}
-#define KEY_READ_D(name) KEY_READ(name, name, 20, "%d\n")
-#define KEY_READ_X(name) KEY_READ(name, name, 20, "0x%x\n")
-
-#define KEY_OPS(name) \
-static const struct file_operations key_ ##name## _ops = { \
- .read = key_##name##_read, \
- .open = mac80211_open_file_generic, \
-}
-
-#define KEY_FILE(name, format) \
- KEY_READ_##format(name) \
- KEY_OPS(name)
-
-#define KEY_CONF_READ(name, buflen, format_string) \
- KEY_READ(conf_##name, conf.name, buflen, format_string)
-#define KEY_CONF_READ_D(name) KEY_CONF_READ(name, 20, "%d\n")
-
-#define KEY_CONF_OPS(name) \
-static const struct file_operations key_ ##name## _ops = { \
- .read = key_conf_##name##_read, \
- .open = mac80211_open_file_generic, \
-}
-
-#define KEY_CONF_FILE(name, format) \
- KEY_CONF_READ_##format(name) \
- KEY_CONF_OPS(name)
-
-KEY_CONF_FILE(keylen, D);
-KEY_CONF_FILE(keyidx, D);
-KEY_CONF_FILE(hw_key_idx, D);
-KEY_FILE(flags, X);
-KEY_FILE(tx_rx_count, D);
-KEY_READ(ifindex, sdata->dev->ifindex, 20, "%d\n");
-KEY_OPS(ifindex);
-
-static ssize_t key_algorithm_read(struct file *file,
- char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- char *alg;
- struct ieee80211_key *key = file->private_data;
-
- switch (key->conf.alg) {
- case ALG_WEP:
- alg = "WEP\n";
- break;
- case ALG_TKIP:
- alg = "TKIP\n";
- break;
- case ALG_CCMP:
- alg = "CCMP\n";
- break;
- default:
- return 0;
- }
- return simple_read_from_buffer(userbuf, count, ppos, alg, strlen(alg));
-}
-KEY_OPS(algorithm);
-
-static ssize_t key_tx_spec_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- const u8 *tpn;
- char buf[20];
- int len;
- struct ieee80211_key *key = file->private_data;
-
- switch (key->conf.alg) {
- case ALG_WEP:
- len = scnprintf(buf, sizeof(buf), "\n");
- break;
- case ALG_TKIP:
- len = scnprintf(buf, sizeof(buf), "%08x %04x\n",
- key->u.tkip.iv32,
- key->u.tkip.iv16);
- break;
- case ALG_CCMP:
- tpn = key->u.ccmp.tx_pn;
- len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
- tpn[0], tpn[1], tpn[2], tpn[3], tpn[4], tpn[5]);
- break;
- default:
- return 0;
- }
- return simple_read_from_buffer(userbuf, count, ppos, buf, len);
-}
-KEY_OPS(tx_spec);
-
-static ssize_t key_rx_spec_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- struct ieee80211_key *key = file->private_data;
- char buf[14*NUM_RX_DATA_QUEUES+1], *p = buf;
- int i, len;
- const u8 *rpn;
-
- switch (key->conf.alg) {
- case ALG_WEP:
- len = scnprintf(buf, sizeof(buf), "\n");
- break;
- case ALG_TKIP:
- for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
- p += scnprintf(p, sizeof(buf)+buf-p,
- "%08x %04x\n",
- key->u.tkip.iv32_rx[i],
- key->u.tkip.iv16_rx[i]);
- len = p - buf;
- break;
- case ALG_CCMP:
- for (i = 0; i < NUM_RX_DATA_QUEUES; i++) {
- rpn = key->u.ccmp.rx_pn[i];
- p += scnprintf(p, sizeof(buf)+buf-p,
- "%02x%02x%02x%02x%02x%02x\n",
- rpn[0], rpn[1], rpn[2],
- rpn[3], rpn[4], rpn[5]);
- }
- len = p - buf;
- break;
- default:
- return 0;
- }
- return simple_read_from_buffer(userbuf, count, ppos, buf, len);
-}
-KEY_OPS(rx_spec);
-
-static ssize_t key_replays_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- struct ieee80211_key *key = file->private_data;
- char buf[20];
- int len;
-
- if (key->conf.alg != ALG_CCMP)
- return 0;
- len = scnprintf(buf, sizeof(buf), "%u\n", key->u.ccmp.replays);
- return simple_read_from_buffer(userbuf, count, ppos, buf, len);
-}
-KEY_OPS(replays);
-
-static ssize_t key_key_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- struct ieee80211_key *key = file->private_data;
- int i, res, bufsize = 2 * key->conf.keylen + 2;
- char *buf = kmalloc(bufsize, GFP_KERNEL);
- char *p = buf;
-
- for (i = 0; i < key->conf.keylen; i++)
- p += scnprintf(p, bufsize + buf - p, "%02x", key->conf.key[i]);
- p += scnprintf(p, bufsize+buf-p, "\n");
- res = simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
- kfree(buf);
- return res;
-}
-KEY_OPS(key);
-
-#define DEBUGFS_ADD(name) \
- key->debugfs.name = debugfs_create_file(#name, 0400,\
- key->debugfs.dir, key, &key_##name##_ops);
-
-void ieee80211_debugfs_key_add(struct ieee80211_local *local,
- struct ieee80211_key *key)
-{
- static int keycount;
- char buf[20];
-
- if (!local->debugfs.keys)
- return;
-
- sprintf(buf, "%d", keycount);
- keycount++;
- key->debugfs.dir = debugfs_create_dir(buf,
- local->debugfs.keys);
-
- if (!key->debugfs.dir)
- return;
-
- DEBUGFS_ADD(keylen);
- DEBUGFS_ADD(flags);
- DEBUGFS_ADD(keyidx);
- DEBUGFS_ADD(hw_key_idx);
- DEBUGFS_ADD(tx_rx_count);
- DEBUGFS_ADD(algorithm);
- DEBUGFS_ADD(tx_spec);
- DEBUGFS_ADD(rx_spec);
- DEBUGFS_ADD(replays);
- DEBUGFS_ADD(key);
- DEBUGFS_ADD(ifindex);
-};
-
-#define DEBUGFS_DEL(name) \
- debugfs_remove(key->debugfs.name); key->debugfs.name = NULL;
-
-void ieee80211_debugfs_key_remove(struct ieee80211_key *key)
-{
- if (!key)
- return;
-
- DEBUGFS_DEL(keylen);
- DEBUGFS_DEL(flags);
- DEBUGFS_DEL(keyidx);
- DEBUGFS_DEL(hw_key_idx);
- DEBUGFS_DEL(tx_rx_count);
- DEBUGFS_DEL(algorithm);
- DEBUGFS_DEL(tx_spec);
- DEBUGFS_DEL(rx_spec);
- DEBUGFS_DEL(replays);
- DEBUGFS_DEL(key);
- DEBUGFS_DEL(ifindex);
-
- debugfs_remove(key->debugfs.stalink);
- key->debugfs.stalink = NULL;
- debugfs_remove(key->debugfs.dir);
- key->debugfs.dir = NULL;
-}
-void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata)
-{
- char buf[50];
-
- if (!sdata->debugfsdir)
- return;
-
- sprintf(buf, "../keys/%d", sdata->default_key->conf.keyidx);
- sdata->debugfs.default_key =
- debugfs_create_symlink("default_key", sdata->debugfsdir, buf);
-}
-void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata)
-{
- if (!sdata)
- return;
-
- debugfs_remove(sdata->debugfs.default_key);
- sdata->debugfs.default_key = NULL;
-}
-void ieee80211_debugfs_key_sta_link(struct ieee80211_key *key,
- struct sta_info *sta)
-{
- char buf[50];
- DECLARE_MAC_BUF(mac);
-
- if (!key->debugfs.dir)
- return;
-
- sprintf(buf, "../../stations/%s", print_mac(mac, sta->addr));
- key->debugfs.stalink =
- debugfs_create_symlink("station", key->debugfs.dir, buf);
-}
-
-void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
- struct sta_info *sta)
-{
- debugfs_remove(key->debugfs.stalink);
- key->debugfs.stalink = NULL;
-}
+++ /dev/null
-#ifndef __MAC80211_DEBUGFS_KEY_H
-#define __MAC80211_DEBUGFS_KEY_H
-
-#ifdef CONFIG_MAC80211_DEBUGFS
-void ieee80211_debugfs_key_add(struct ieee80211_local *local,
- struct ieee80211_key *key);
-void ieee80211_debugfs_key_remove(struct ieee80211_key *key);
-void ieee80211_debugfs_key_add_default(struct ieee80211_sub_if_data *sdata);
-void ieee80211_debugfs_key_remove_default(struct ieee80211_sub_if_data *sdata);
-void ieee80211_debugfs_key_sta_link(struct ieee80211_key *key,
- struct sta_info *sta);
-void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
- struct sta_info *sta);
-#else
-static inline void ieee80211_debugfs_key_add(struct ieee80211_local *local,
- struct ieee80211_key *key)
-{}
-static inline void ieee80211_debugfs_key_remove(struct ieee80211_key *key)
-{}
-static inline void ieee80211_debugfs_key_add_default(
- struct ieee80211_sub_if_data *sdata)
-{}
-static inline void ieee80211_debugfs_key_remove_default(
- struct ieee80211_sub_if_data *sdata)
-{}
-static inline void ieee80211_debugfs_key_sta_link(
- struct ieee80211_key *key, struct sta_info *sta)
-{}
-static inline void ieee80211_debugfs_key_sta_del(struct ieee80211_key *key,
- struct sta_info *sta)
-{}
-#endif
-
-#endif /* __MAC80211_DEBUGFS_KEY_H */
+++ /dev/null
-/*
- * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/device.h>
-#include <linux/if.h>
-#include <linux/interrupt.h>
-#include <linux/netdevice.h>
-#include <linux/rtnetlink.h>
-#include <linux/notifier.h>
-#include <net/mac80211.h>
-#include <net/cfg80211.h>
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-#include "debugfs.h"
-#include "debugfs_netdev.h"
-
-static ssize_t ieee80211_if_read(
- struct ieee80211_sub_if_data *sdata,
- char __user *userbuf,
- size_t count, loff_t *ppos,
- ssize_t (*format)(const struct ieee80211_sub_if_data *, char *, int))
-{
- char buf[70];
- ssize_t ret = -EINVAL;
-
- read_lock(&dev_base_lock);
- if (sdata->dev->reg_state == NETREG_REGISTERED) {
- ret = (*format)(sdata, buf, sizeof(buf));
- ret = simple_read_from_buffer(userbuf, count, ppos, buf, ret);
- }
- read_unlock(&dev_base_lock);
- return ret;
-}
-
-#define IEEE80211_IF_FMT(name, field, format_string) \
-static ssize_t ieee80211_if_fmt_##name( \
- const struct ieee80211_sub_if_data *sdata, char *buf, \
- int buflen) \
-{ \
- return scnprintf(buf, buflen, format_string, sdata->field); \
-}
-#define IEEE80211_IF_FMT_DEC(name, field) \
- IEEE80211_IF_FMT(name, field, "%d\n")
-#define IEEE80211_IF_FMT_HEX(name, field) \
- IEEE80211_IF_FMT(name, field, "%#x\n")
-#define IEEE80211_IF_FMT_SIZE(name, field) \
- IEEE80211_IF_FMT(name, field, "%zd\n")
-
-#define IEEE80211_IF_FMT_ATOMIC(name, field) \
-static ssize_t ieee80211_if_fmt_##name( \
- const struct ieee80211_sub_if_data *sdata, \
- char *buf, int buflen) \
-{ \
- return scnprintf(buf, buflen, "%d\n", atomic_read(&sdata->field));\
-}
-
-#define IEEE80211_IF_FMT_MAC(name, field) \
-static ssize_t ieee80211_if_fmt_##name( \
- const struct ieee80211_sub_if_data *sdata, char *buf, \
- int buflen) \
-{ \
- DECLARE_MAC_BUF(mac); \
- return scnprintf(buf, buflen, "%s\n", print_mac(mac, sdata->field));\
-}
-
-#define __IEEE80211_IF_FILE(name) \
-static ssize_t ieee80211_if_read_##name(struct file *file, \
- char __user *userbuf, \
- size_t count, loff_t *ppos) \
-{ \
- return ieee80211_if_read(file->private_data, \
- userbuf, count, ppos, \
- ieee80211_if_fmt_##name); \
-} \
-static const struct file_operations name##_ops = { \
- .read = ieee80211_if_read_##name, \
- .open = mac80211_open_file_generic, \
-}
-
-#define IEEE80211_IF_FILE(name, field, format) \
- IEEE80211_IF_FMT_##format(name, field) \
- __IEEE80211_IF_FILE(name)
-
-/* common attributes */
-IEEE80211_IF_FILE(channel_use, channel_use, DEC);
-IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
-
-/* STA/IBSS attributes */
-IEEE80211_IF_FILE(state, u.sta.state, DEC);
-IEEE80211_IF_FILE(bssid, u.sta.bssid, MAC);
-IEEE80211_IF_FILE(prev_bssid, u.sta.prev_bssid, MAC);
-IEEE80211_IF_FILE(ssid_len, u.sta.ssid_len, SIZE);
-IEEE80211_IF_FILE(aid, u.sta.aid, DEC);
-IEEE80211_IF_FILE(ap_capab, u.sta.ap_capab, HEX);
-IEEE80211_IF_FILE(capab, u.sta.capab, HEX);
-IEEE80211_IF_FILE(extra_ie_len, u.sta.extra_ie_len, SIZE);
-IEEE80211_IF_FILE(auth_tries, u.sta.auth_tries, DEC);
-IEEE80211_IF_FILE(assoc_tries, u.sta.assoc_tries, DEC);
-IEEE80211_IF_FILE(auth_algs, u.sta.auth_algs, HEX);
-IEEE80211_IF_FILE(auth_alg, u.sta.auth_alg, DEC);
-IEEE80211_IF_FILE(auth_transaction, u.sta.auth_transaction, DEC);
-
-static ssize_t ieee80211_if_fmt_flags(
- const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
-{
- return scnprintf(buf, buflen, "%s%s%s%s%s%s%s\n",
- sdata->u.sta.flags & IEEE80211_STA_SSID_SET ? "SSID\n" : "",
- sdata->u.sta.flags & IEEE80211_STA_BSSID_SET ? "BSSID\n" : "",
- sdata->u.sta.flags & IEEE80211_STA_PREV_BSSID_SET ? "prev BSSID\n" : "",
- sdata->u.sta.flags & IEEE80211_STA_AUTHENTICATED ? "AUTH\n" : "",
- sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED ? "ASSOC\n" : "",
- sdata->u.sta.flags & IEEE80211_STA_PROBEREQ_POLL ? "PROBEREQ POLL\n" : "",
- sdata->bss_conf.use_cts_prot ? "CTS prot\n" : "");
-}
-__IEEE80211_IF_FILE(flags);
-
-/* AP attributes */
-IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
-IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);
-IEEE80211_IF_FILE(num_beacons, u.ap.num_beacons, DEC);
-IEEE80211_IF_FILE(force_unicast_rateidx, u.ap.force_unicast_rateidx, DEC);
-IEEE80211_IF_FILE(max_ratectrl_rateidx, u.ap.max_ratectrl_rateidx, DEC);
-
-static ssize_t ieee80211_if_fmt_num_buffered_multicast(
- const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
-{
- return scnprintf(buf, buflen, "%u\n",
- skb_queue_len(&sdata->u.ap.ps_bc_buf));
-}
-__IEEE80211_IF_FILE(num_buffered_multicast);
-
-/* WDS attributes */
-IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
-
-#define DEBUGFS_ADD(name, type)\
- sdata->debugfs.type.name = debugfs_create_file(#name, 0444,\
- sdata->debugfsdir, sdata, &name##_ops);
-
-static void add_sta_files(struct ieee80211_sub_if_data *sdata)
-{
- DEBUGFS_ADD(channel_use, sta);
- DEBUGFS_ADD(drop_unencrypted, sta);
- DEBUGFS_ADD(state, sta);
- DEBUGFS_ADD(bssid, sta);
- DEBUGFS_ADD(prev_bssid, sta);
- DEBUGFS_ADD(ssid_len, sta);
- DEBUGFS_ADD(aid, sta);
- DEBUGFS_ADD(ap_capab, sta);
- DEBUGFS_ADD(capab, sta);
- DEBUGFS_ADD(extra_ie_len, sta);
- DEBUGFS_ADD(auth_tries, sta);
- DEBUGFS_ADD(assoc_tries, sta);
- DEBUGFS_ADD(auth_algs, sta);
- DEBUGFS_ADD(auth_alg, sta);
- DEBUGFS_ADD(auth_transaction, sta);
- DEBUGFS_ADD(flags, sta);
-}
-
-static void add_ap_files(struct ieee80211_sub_if_data *sdata)
-{
- DEBUGFS_ADD(channel_use, ap);
- DEBUGFS_ADD(drop_unencrypted, ap);
- DEBUGFS_ADD(num_sta_ps, ap);
- DEBUGFS_ADD(dtim_count, ap);
- DEBUGFS_ADD(num_beacons, ap);
- DEBUGFS_ADD(force_unicast_rateidx, ap);
- DEBUGFS_ADD(max_ratectrl_rateidx, ap);
- DEBUGFS_ADD(num_buffered_multicast, ap);
-}
-
-static void add_wds_files(struct ieee80211_sub_if_data *sdata)
-{
- DEBUGFS_ADD(channel_use, wds);
- DEBUGFS_ADD(drop_unencrypted, wds);
- DEBUGFS_ADD(peer, wds);
-}
-
-static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
-{
- DEBUGFS_ADD(channel_use, vlan);
- DEBUGFS_ADD(drop_unencrypted, vlan);
-}
-
-static void add_monitor_files(struct ieee80211_sub_if_data *sdata)
-{
-}
-
-static void add_files(struct ieee80211_sub_if_data *sdata)
-{
- if (!sdata->debugfsdir)
- return;
-
- switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- add_sta_files(sdata);
- break;
- case IEEE80211_IF_TYPE_AP:
- add_ap_files(sdata);
- break;
- case IEEE80211_IF_TYPE_WDS:
- add_wds_files(sdata);
- break;
- case IEEE80211_IF_TYPE_MNTR:
- add_monitor_files(sdata);
- break;
- case IEEE80211_IF_TYPE_VLAN:
- add_vlan_files(sdata);
- break;
- default:
- break;
- }
-}
-
-#define DEBUGFS_DEL(name, type) \
- do { \
- debugfs_remove(sdata->debugfs.type.name); \
- sdata->debugfs.type.name = NULL; \
- } while (0)
-
-static void del_sta_files(struct ieee80211_sub_if_data *sdata)
-{
- DEBUGFS_DEL(channel_use, sta);
- DEBUGFS_DEL(drop_unencrypted, sta);
- DEBUGFS_DEL(state, sta);
- DEBUGFS_DEL(bssid, sta);
- DEBUGFS_DEL(prev_bssid, sta);
- DEBUGFS_DEL(ssid_len, sta);
- DEBUGFS_DEL(aid, sta);
- DEBUGFS_DEL(ap_capab, sta);
- DEBUGFS_DEL(capab, sta);
- DEBUGFS_DEL(extra_ie_len, sta);
- DEBUGFS_DEL(auth_tries, sta);
- DEBUGFS_DEL(assoc_tries, sta);
- DEBUGFS_DEL(auth_algs, sta);
- DEBUGFS_DEL(auth_alg, sta);
- DEBUGFS_DEL(auth_transaction, sta);
- DEBUGFS_DEL(flags, sta);
-}
-
-static void del_ap_files(struct ieee80211_sub_if_data *sdata)
-{
- DEBUGFS_DEL(channel_use, ap);
- DEBUGFS_DEL(drop_unencrypted, ap);
- DEBUGFS_DEL(num_sta_ps, ap);
- DEBUGFS_DEL(dtim_count, ap);
- DEBUGFS_DEL(num_beacons, ap);
- DEBUGFS_DEL(force_unicast_rateidx, ap);
- DEBUGFS_DEL(max_ratectrl_rateidx, ap);
- DEBUGFS_DEL(num_buffered_multicast, ap);
-}
-
-static void del_wds_files(struct ieee80211_sub_if_data *sdata)
-{
- DEBUGFS_DEL(channel_use, wds);
- DEBUGFS_DEL(drop_unencrypted, wds);
- DEBUGFS_DEL(peer, wds);
-}
-
-static void del_vlan_files(struct ieee80211_sub_if_data *sdata)
-{
- DEBUGFS_DEL(channel_use, vlan);
- DEBUGFS_DEL(drop_unencrypted, vlan);
-}
-
-static void del_monitor_files(struct ieee80211_sub_if_data *sdata)
-{
-}
-
-static void del_files(struct ieee80211_sub_if_data *sdata, int type)
-{
- if (!sdata->debugfsdir)
- return;
-
- switch (type) {
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- del_sta_files(sdata);
- break;
- case IEEE80211_IF_TYPE_AP:
- del_ap_files(sdata);
- break;
- case IEEE80211_IF_TYPE_WDS:
- del_wds_files(sdata);
- break;
- case IEEE80211_IF_TYPE_MNTR:
- del_monitor_files(sdata);
- break;
- case IEEE80211_IF_TYPE_VLAN:
- del_vlan_files(sdata);
- break;
- default:
- break;
- }
-}
-
-static int notif_registered;
-
-void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
-{
- char buf[10+IFNAMSIZ];
-
- if (!notif_registered)
- return;
-
- sprintf(buf, "netdev:%s", sdata->dev->name);
- sdata->debugfsdir = debugfs_create_dir(buf,
- sdata->local->hw.wiphy->debugfsdir);
-}
-
-void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
-{
- del_files(sdata, sdata->vif.type);
- debugfs_remove(sdata->debugfsdir);
- sdata->debugfsdir = NULL;
-}
-
-void ieee80211_debugfs_change_if_type(struct ieee80211_sub_if_data *sdata,
- int oldtype)
-{
- del_files(sdata, oldtype);
- add_files(sdata);
-}
-
-static int netdev_notify(struct notifier_block * nb,
- unsigned long state,
- void *ndev)
-{
- struct net_device *dev = ndev;
- struct dentry *dir;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- char buf[10+IFNAMSIZ];
-
- if (state != NETDEV_CHANGENAME)
- return 0;
-
- if (!dev->ieee80211_ptr || !dev->ieee80211_ptr->wiphy)
- return 0;
-
- if (dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid)
- return 0;
-
- sprintf(buf, "netdev:%s", dev->name);
- dir = sdata->debugfsdir;
- if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf))
- printk(KERN_ERR "mac80211: debugfs: failed to rename debugfs "
- "dir to %s\n", buf);
-
- return 0;
-}
-
-static struct notifier_block mac80211_debugfs_netdev_notifier = {
- .notifier_call = netdev_notify,
-};
-
-void ieee80211_debugfs_netdev_init(void)
-{
- int err;
-
- err = register_netdevice_notifier(&mac80211_debugfs_netdev_notifier);
- if (err) {
- printk(KERN_ERR
- "mac80211: failed to install netdev notifier,"
- " disabling per-netdev debugfs!\n");
- } else
- notif_registered = 1;
-}
-
-void ieee80211_debugfs_netdev_exit(void)
-{
- unregister_netdevice_notifier(&mac80211_debugfs_netdev_notifier);
- notif_registered = 0;
-}
+++ /dev/null
-/* routines exported for debugfs handling */
-
-#ifndef __IEEE80211_DEBUGFS_NETDEV_H
-#define __IEEE80211_DEBUGFS_NETDEV_H
-
-#ifdef CONFIG_MAC80211_DEBUGFS
-void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata);
-void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata);
-void ieee80211_debugfs_change_if_type(struct ieee80211_sub_if_data *sdata,
- int oldtype);
-void ieee80211_debugfs_netdev_init(void);
-void ieee80211_debugfs_netdev_exit(void);
-#else
-static inline void ieee80211_debugfs_add_netdev(
- struct ieee80211_sub_if_data *sdata)
-{}
-static inline void ieee80211_debugfs_remove_netdev(
- struct ieee80211_sub_if_data *sdata)
-{}
-static inline void ieee80211_debugfs_change_if_type(
- struct ieee80211_sub_if_data *sdata, int oldtype)
-{}
-static inline void ieee80211_debugfs_netdev_init(void)
-{}
-
-static inline void ieee80211_debugfs_netdev_exit(void)
-{}
-#endif
-
-#endif /* __IEEE80211_DEBUGFS_NETDEV_H */
+++ /dev/null
-/*
- * Copyright 2003-2005 Devicescape Software, Inc.
- * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/debugfs.h>
-#include <linux/ieee80211.h>
-#include "ieee80211_i.h"
-#include "debugfs.h"
-#include "debugfs_sta.h"
-#include "sta_info.h"
-
-/* sta attributtes */
-
-#define STA_READ(name, buflen, field, format_string) \
-static ssize_t sta_ ##name## _read(struct file *file, \
- char __user *userbuf, \
- size_t count, loff_t *ppos) \
-{ \
- int res; \
- struct sta_info *sta = file->private_data; \
- char buf[buflen]; \
- res = scnprintf(buf, buflen, format_string, sta->field); \
- return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
-}
-#define STA_READ_D(name, field) STA_READ(name, 20, field, "%d\n")
-#define STA_READ_U(name, field) STA_READ(name, 20, field, "%u\n")
-#define STA_READ_LU(name, field) STA_READ(name, 20, field, "%lu\n")
-#define STA_READ_S(name, field) STA_READ(name, 20, field, "%s\n")
-
-#define STA_OPS(name) \
-static const struct file_operations sta_ ##name## _ops = { \
- .read = sta_##name##_read, \
- .open = mac80211_open_file_generic, \
-}
-
-#define STA_OPS_WR(name) \
-static const struct file_operations sta_ ##name## _ops = { \
- .read = sta_##name##_read, \
- .write = sta_##name##_write, \
- .open = mac80211_open_file_generic, \
-}
-
-#define STA_FILE(name, field, format) \
- STA_READ_##format(name, field) \
- STA_OPS(name)
-
-STA_FILE(aid, aid, D);
-STA_FILE(dev, dev->name, S);
-STA_FILE(rx_packets, rx_packets, LU);
-STA_FILE(tx_packets, tx_packets, LU);
-STA_FILE(rx_bytes, rx_bytes, LU);
-STA_FILE(tx_bytes, tx_bytes, LU);
-STA_FILE(rx_duplicates, num_duplicates, LU);
-STA_FILE(rx_fragments, rx_fragments, LU);
-STA_FILE(rx_dropped, rx_dropped, LU);
-STA_FILE(tx_fragments, tx_fragments, LU);
-STA_FILE(tx_filtered, tx_filtered_count, LU);
-STA_FILE(tx_retry_failed, tx_retry_failed, LU);
-STA_FILE(tx_retry_count, tx_retry_count, LU);
-STA_FILE(last_rssi, last_rssi, D);
-STA_FILE(last_signal, last_signal, D);
-STA_FILE(last_noise, last_noise, D);
-STA_FILE(channel_use, channel_use, D);
-STA_FILE(wep_weak_iv_count, wep_weak_iv_count, D);
-
-static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- char buf[100];
- struct sta_info *sta = file->private_data;
- int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s",
- sta->flags & WLAN_STA_AUTH ? "AUTH\n" : "",
- sta->flags & WLAN_STA_ASSOC ? "ASSOC\n" : "",
- sta->flags & WLAN_STA_PS ? "PS\n" : "",
- sta->flags & WLAN_STA_TIM ? "TIM\n" : "",
- sta->flags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "",
- sta->flags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "",
- sta->flags & WLAN_STA_WME ? "WME\n" : "",
- sta->flags & WLAN_STA_WDS ? "WDS\n" : "");
- return simple_read_from_buffer(userbuf, count, ppos, buf, res);
-}
-STA_OPS(flags);
-
-static ssize_t sta_num_ps_buf_frames_read(struct file *file,
- char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- char buf[20];
- struct sta_info *sta = file->private_data;
- int res = scnprintf(buf, sizeof(buf), "%u\n",
- skb_queue_len(&sta->ps_tx_buf));
- return simple_read_from_buffer(userbuf, count, ppos, buf, res);
-}
-STA_OPS(num_ps_buf_frames);
-
-static ssize_t sta_last_ack_rssi_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- char buf[100];
- struct sta_info *sta = file->private_data;
- int res = scnprintf(buf, sizeof(buf), "%d %d %d\n",
- sta->last_ack_rssi[0],
- sta->last_ack_rssi[1],
- sta->last_ack_rssi[2]);
- return simple_read_from_buffer(userbuf, count, ppos, buf, res);
-}
-STA_OPS(last_ack_rssi);
-
-static ssize_t sta_last_ack_ms_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- char buf[20];
- struct sta_info *sta = file->private_data;
- int res = scnprintf(buf, sizeof(buf), "%d\n",
- sta->last_ack ?
- jiffies_to_msecs(jiffies - sta->last_ack) : -1);
- return simple_read_from_buffer(userbuf, count, ppos, buf, res);
-}
-STA_OPS(last_ack_ms);
-
-static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- char buf[20];
- struct sta_info *sta = file->private_data;
- int res = scnprintf(buf, sizeof(buf), "%d\n",
- jiffies_to_msecs(jiffies - sta->last_rx));
- return simple_read_from_buffer(userbuf, count, ppos, buf, res);
-}
-STA_OPS(inactive_ms);
-
-static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
- int i;
- struct sta_info *sta = file->private_data;
- for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
- p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
- le16_to_cpu(sta->last_seq_ctrl[i]));
- p += scnprintf(p, sizeof(buf)+buf-p, "\n");
- return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
-}
-STA_OPS(last_seq_ctrl);
-
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
-static ssize_t sta_wme_rx_queue_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
- int i;
- struct sta_info *sta = file->private_data;
- for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
- p += scnprintf(p, sizeof(buf)+buf-p, "%u ",
- sta->wme_rx_queue[i]);
- p += scnprintf(p, sizeof(buf)+buf-p, "\n");
- return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
-}
-STA_OPS(wme_rx_queue);
-
-static ssize_t sta_wme_tx_queue_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- char buf[15*NUM_TX_DATA_QUEUES], *p = buf;
- int i;
- struct sta_info *sta = file->private_data;
- for (i = 0; i < NUM_TX_DATA_QUEUES; i++)
- p += scnprintf(p, sizeof(buf)+buf-p, "%u ",
- sta->wme_tx_queue[i]);
- p += scnprintf(p, sizeof(buf)+buf-p, "\n");
- return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
-}
-STA_OPS(wme_tx_queue);
-#endif
-
-static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- char buf[768], *p = buf;
- int i;
- struct sta_info *sta = file->private_data;
- p += scnprintf(p, sizeof(buf)+buf-p, "Agg state for STA is:\n");
- p += scnprintf(p, sizeof(buf)+buf-p, " STA next dialog_token is %d \n "
- "TIDs info is: \n TID :",
- (sta->ampdu_mlme.dialog_token_allocator + 1));
- for (i = 0; i < STA_TID_NUM; i++)
- p += scnprintf(p, sizeof(buf)+buf-p, "%5d", i);
-
- p += scnprintf(p, sizeof(buf)+buf-p, "\n RX :");
- for (i = 0; i < STA_TID_NUM; i++)
- p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
- sta->ampdu_mlme.tid_rx[i].state);
-
- p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:");
- for (i = 0; i < STA_TID_NUM; i++)
- p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
- sta->ampdu_mlme.tid_rx[i].dialog_token);
-
- p += scnprintf(p, sizeof(buf)+buf-p, "\n TX :");
- for (i = 0; i < STA_TID_NUM; i++)
- p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
- sta->ampdu_mlme.tid_tx[i].state);
-
- p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:");
- for (i = 0; i < STA_TID_NUM; i++)
- p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
- sta->ampdu_mlme.tid_tx[i].dialog_token);
-
- p += scnprintf(p, sizeof(buf)+buf-p, "\n SSN :");
- for (i = 0; i < STA_TID_NUM; i++)
- p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
- sta->ampdu_mlme.tid_tx[i].ssn);
-
- p += scnprintf(p, sizeof(buf)+buf-p, "\n");
-
- return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
-}
-
-static ssize_t sta_agg_status_write(struct file *file,
- const char __user *user_buf, size_t count, loff_t *ppos)
-{
- struct sta_info *sta = file->private_data;
- struct net_device *dev = sta->dev;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- u8 *da = sta->addr;
- static int tid_static_tx[16] = {0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0};
- static int tid_static_rx[16] = {1, 1, 1, 1, 1, 1, 1, 1,
- 1, 1, 1, 1, 1, 1, 1, 1};
- char *endp;
- char buf[32];
- int buf_size, rs;
- unsigned int tid_num;
- char state[4];
-
- memset(buf, 0x00, sizeof(buf));
- buf_size = min(count, (sizeof(buf)-1));
- if (copy_from_user(buf, user_buf, buf_size))
- return -EFAULT;
-
- tid_num = simple_strtoul(buf, &endp, 0);
- if (endp == buf)
- return -EINVAL;
-
- if ((tid_num >= 100) && (tid_num <= 115)) {
- /* toggle Rx aggregation command */
- tid_num = tid_num - 100;
- if (tid_static_rx[tid_num] == 1) {
- strcpy(state, "off ");
- ieee80211_sta_stop_rx_ba_session(dev, da, tid_num, 0,
- WLAN_REASON_QSTA_REQUIRE_SETUP);
- sta->ampdu_mlme.tid_rx[tid_num].buf_size = 0xFF;
- tid_static_rx[tid_num] = 0;
- } else {
- strcpy(state, "on ");
- sta->ampdu_mlme.tid_rx[tid_num].buf_size = 0x00;
- tid_static_rx[tid_num] = 1;
- }
- printk(KERN_DEBUG "debugfs - try switching tid %u %s\n",
- tid_num, state);
- } else if ((tid_num >= 0) && (tid_num <= 15)) {
- /* toggle Tx aggregation command */
- if (tid_static_tx[tid_num] == 0) {
- strcpy(state, "on ");
- rs = ieee80211_start_tx_ba_session(hw, da, tid_num);
- if (rs == 0)
- tid_static_tx[tid_num] = 1;
- } else {
- strcpy(state, "off");
- rs = ieee80211_stop_tx_ba_session(hw, da, tid_num, 1);
- if (rs == 0)
- tid_static_tx[tid_num] = 0;
- }
- printk(KERN_DEBUG "debugfs - switching tid %u %s, return=%d\n",
- tid_num, state, rs);
- }
-
- return count;
-}
-STA_OPS_WR(agg_status);
-
-#define DEBUGFS_ADD(name) \
- sta->debugfs.name = debugfs_create_file(#name, 0444, \
- sta->debugfs.dir, sta, &sta_ ##name## _ops);
-
-#define DEBUGFS_DEL(name) \
- debugfs_remove(sta->debugfs.name);\
- sta->debugfs.name = NULL;
-
-
-void ieee80211_sta_debugfs_add(struct sta_info *sta)
-{
- struct dentry *stations_dir = sta->local->debugfs.stations;
- DECLARE_MAC_BUF(mac);
-
- if (!stations_dir)
- return;
-
- print_mac(mac, sta->addr);
-
- sta->debugfs.dir = debugfs_create_dir(mac, stations_dir);
- if (!sta->debugfs.dir)
- return;
-
- DEBUGFS_ADD(flags);
- DEBUGFS_ADD(num_ps_buf_frames);
- DEBUGFS_ADD(last_ack_rssi);
- DEBUGFS_ADD(last_ack_ms);
- DEBUGFS_ADD(inactive_ms);
- DEBUGFS_ADD(last_seq_ctrl);
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- DEBUGFS_ADD(wme_rx_queue);
- DEBUGFS_ADD(wme_tx_queue);
-#endif
- DEBUGFS_ADD(agg_status);
-}
-
-void ieee80211_sta_debugfs_remove(struct sta_info *sta)
-{
- DEBUGFS_DEL(flags);
- DEBUGFS_DEL(num_ps_buf_frames);
- DEBUGFS_DEL(last_ack_rssi);
- DEBUGFS_DEL(last_ack_ms);
- DEBUGFS_DEL(inactive_ms);
- DEBUGFS_DEL(last_seq_ctrl);
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- DEBUGFS_DEL(wme_rx_queue);
- DEBUGFS_DEL(wme_tx_queue);
-#endif
- DEBUGFS_DEL(agg_status);
-
- debugfs_remove(sta->debugfs.dir);
- sta->debugfs.dir = NULL;
-}
+++ /dev/null
-#ifndef __MAC80211_DEBUGFS_STA_H
-#define __MAC80211_DEBUGFS_STA_H
-
-#ifdef CONFIG_MAC80211_DEBUGFS
-void ieee80211_sta_debugfs_add(struct sta_info *sta);
-void ieee80211_sta_debugfs_remove(struct sta_info *sta);
-#else
-static inline void ieee80211_sta_debugfs_add(struct sta_info *sta) {}
-static inline void ieee80211_sta_debugfs_remove(struct sta_info *sta) {}
-#endif
-
-#endif /* __MAC80211_DEBUGFS_STA_H */
+++ /dev/null
-/*
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * mac80211 - events
- */
-
-#include <linux/netdevice.h>
-#include <net/iw_handler.h>
-#include "ieee80211_i.h"
-
-/*
- * indicate a failed Michael MIC to userspace; the passed packet
- * (in the variable hdr) must be long enough to extract the TKIP
- * fields like TSC
- */
-void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
- struct ieee80211_hdr *hdr)
-{
- union iwreq_data wrqu;
- char *buf = kmalloc(128, GFP_ATOMIC);
- DECLARE_MAC_BUF(mac);
-
- if (buf) {
- /* TODO: needed parameters: count, key type, TSC */
- sprintf(buf, "MLME-MICHAELMICFAILURE.indication("
- "keyid=%d %scast addr=%s)",
- keyidx, hdr->addr1[0] & 0x01 ? "broad" : "uni",
- print_mac(mac, hdr->addr2));
- memset(&wrqu, 0, sizeof(wrqu));
- wrqu.data.length = strlen(buf);
- wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
- kfree(buf);
- }
-
- /*
- * TODO: re-add support for sending MIC failure indication
- * with all info via nl80211
- */
-}
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005-2006, Devicescape Software, Inc.
- * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <net/mac80211.h>
-#include <net/ieee80211_radiotap.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-#include <linux/etherdevice.h>
-#include <linux/if_arp.h>
-#include <linux/wireless.h>
-#include <linux/rtnetlink.h>
-#include <linux/bitmap.h>
-#include <net/net_namespace.h>
-#include <net/cfg80211.h>
-
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-#include "wep.h"
-#include "wme.h"
-#include "aes_ccm.h"
-#include "ieee80211_led.h"
-#include "cfg.h"
-#include "debugfs.h"
-#include "debugfs_netdev.h"
-
-#define SUPP_MCS_SET_LEN 16
-
-/*
- * For seeing transmitted packets on monitor interfaces
- * we have a radiotap header too.
- */
-struct ieee80211_tx_status_rtap_hdr {
- struct ieee80211_radiotap_header hdr;
- __le16 tx_flags;
- u8 data_retries;
-} __attribute__ ((packed));
-
-/* common interface routines */
-
-static int header_parse_80211(const struct sk_buff *skb, unsigned char *haddr)
-{
- memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */
- return ETH_ALEN;
-}
-
-/* must be called under mdev tx lock */
-static void ieee80211_configure_filter(struct ieee80211_local *local)
-{
- unsigned int changed_flags;
- unsigned int new_flags = 0;
-
- if (atomic_read(&local->iff_promiscs))
- new_flags |= FIF_PROMISC_IN_BSS;
-
- if (atomic_read(&local->iff_allmultis))
- new_flags |= FIF_ALLMULTI;
-
- if (local->monitors)
- new_flags |= FIF_BCN_PRBRESP_PROMISC;
-
- if (local->fif_fcsfail)
- new_flags |= FIF_FCSFAIL;
-
- if (local->fif_plcpfail)
- new_flags |= FIF_PLCPFAIL;
-
- if (local->fif_control)
- new_flags |= FIF_CONTROL;
-
- if (local->fif_other_bss)
- new_flags |= FIF_OTHER_BSS;
-
- changed_flags = local->filter_flags ^ new_flags;
-
- /* be a bit nasty */
- new_flags |= (1<<31);
-
- local->ops->configure_filter(local_to_hw(local),
- changed_flags, &new_flags,
- local->mdev->mc_count,
- local->mdev->mc_list);
-
- WARN_ON(new_flags & (1<<31));
-
- local->filter_flags = new_flags & ~(1<<31);
-}
-
-/* master interface */
-
-static int ieee80211_master_open(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata;
- int res = -EOPNOTSUPP;
-
- /* we hold the RTNL here so can safely walk the list */
- list_for_each_entry(sdata, &local->interfaces, list) {
- if (sdata->dev != dev && netif_running(sdata->dev)) {
- res = 0;
- break;
- }
- }
- return res;
-}
-
-static int ieee80211_master_stop(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata;
-
- /* we hold the RTNL here so can safely walk the list */
- list_for_each_entry(sdata, &local->interfaces, list)
- if (sdata->dev != dev && netif_running(sdata->dev))
- dev_close(sdata->dev);
-
- return 0;
-}
-
-static void ieee80211_master_set_multicast_list(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- ieee80211_configure_filter(local);
-}
-
-/* regular interfaces */
-
-static int ieee80211_change_mtu(struct net_device *dev, int new_mtu)
-{
- /* FIX: what would be proper limits for MTU?
- * This interface uses 802.3 frames. */
- if (new_mtu < 256 || new_mtu > IEEE80211_MAX_DATA_LEN - 24 - 6) {
- printk(KERN_WARNING "%s: invalid MTU %d\n",
- dev->name, new_mtu);
- return -EINVAL;
- }
-
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: setting MTU %d\n", dev->name, new_mtu);
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- dev->mtu = new_mtu;
- return 0;
-}
-
-static inline int identical_mac_addr_allowed(int type1, int type2)
-{
- return (type1 == IEEE80211_IF_TYPE_MNTR ||
- type2 == IEEE80211_IF_TYPE_MNTR ||
- (type1 == IEEE80211_IF_TYPE_AP &&
- type2 == IEEE80211_IF_TYPE_WDS) ||
- (type1 == IEEE80211_IF_TYPE_WDS &&
- (type2 == IEEE80211_IF_TYPE_WDS ||
- type2 == IEEE80211_IF_TYPE_AP)) ||
- (type1 == IEEE80211_IF_TYPE_AP &&
- type2 == IEEE80211_IF_TYPE_VLAN) ||
- (type1 == IEEE80211_IF_TYPE_VLAN &&
- (type2 == IEEE80211_IF_TYPE_AP ||
- type2 == IEEE80211_IF_TYPE_VLAN)));
-}
-
-static int ieee80211_open(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata, *nsdata;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_if_init_conf conf;
- int res;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- /* we hold the RTNL here so can safely walk the list */
- list_for_each_entry(nsdata, &local->interfaces, list) {
- struct net_device *ndev = nsdata->dev;
-
- if (ndev != dev && ndev != local->mdev && netif_running(ndev) &&
- compare_ether_addr(dev->dev_addr, ndev->dev_addr) == 0) {
- /*
- * check whether it may have the same address
- */
- if (!identical_mac_addr_allowed(sdata->vif.type,
- nsdata->vif.type))
- return -ENOTUNIQ;
-
- /*
- * can only add VLANs to enabled APs
- */
- if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN &&
- nsdata->vif.type == IEEE80211_IF_TYPE_AP &&
- netif_running(nsdata->dev))
- sdata->u.vlan.ap = nsdata;
- }
- }
-
- switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_WDS:
- if (is_zero_ether_addr(sdata->u.wds.remote_addr))
- return -ENOLINK;
- break;
- case IEEE80211_IF_TYPE_VLAN:
- if (!sdata->u.vlan.ap)
- return -ENOLINK;
- break;
- case IEEE80211_IF_TYPE_AP:
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_MNTR:
- case IEEE80211_IF_TYPE_IBSS:
- /* no special treatment */
- break;
- case IEEE80211_IF_TYPE_INVALID:
- /* cannot happen */
- WARN_ON(1);
- break;
- }
-
- if (local->open_count == 0) {
- res = 0;
- if (local->ops->start)
- res = local->ops->start(local_to_hw(local));
- if (res)
- return res;
- ieee80211_hw_config(local);
- ieee80211_led_radio(local, local->hw.conf.radio_enabled);
- }
-
- switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_VLAN:
- list_add(&sdata->u.vlan.list, &sdata->u.vlan.ap->u.ap.vlans);
- /* no need to tell driver */
- break;
- case IEEE80211_IF_TYPE_MNTR:
- if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) {
- local->cooked_mntrs++;
- break;
- }
-
- /* must be before the call to ieee80211_configure_filter */
- local->monitors++;
- if (local->monitors == 1)
- local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
-
- if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL)
- local->fif_fcsfail++;
- if (sdata->u.mntr_flags & MONITOR_FLAG_PLCPFAIL)
- local->fif_plcpfail++;
- if (sdata->u.mntr_flags & MONITOR_FLAG_CONTROL)
- local->fif_control++;
- if (sdata->u.mntr_flags & MONITOR_FLAG_OTHER_BSS)
- local->fif_other_bss++;
-
- netif_tx_lock_bh(local->mdev);
- ieee80211_configure_filter(local);
- netif_tx_unlock_bh(local->mdev);
- break;
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- sdata->u.sta.flags &= ~IEEE80211_STA_PREV_BSSID_SET;
- /* fall through */
- default:
- conf.vif = &sdata->vif;
- conf.type = sdata->vif.type;
- conf.mac_addr = dev->dev_addr;
- res = local->ops->add_interface(local_to_hw(local), &conf);
- if (res && !local->open_count && local->ops->stop)
- local->ops->stop(local_to_hw(local));
- if (res)
- return res;
-
- ieee80211_if_config(dev);
- ieee80211_reset_erp_info(dev);
- ieee80211_enable_keys(sdata);
-
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA &&
- !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
- netif_carrier_off(dev);
- else
- netif_carrier_on(dev);
- }
-
- if (local->open_count == 0) {
- res = dev_open(local->mdev);
- WARN_ON(res);
- tasklet_enable(&local->tx_pending_tasklet);
- tasklet_enable(&local->tasklet);
- }
-
- /*
- * set_multicast_list will be invoked by the networking core
- * which will check whether any increments here were done in
- * error and sync them down to the hardware as filter flags.
- */
- if (sdata->flags & IEEE80211_SDATA_ALLMULTI)
- atomic_inc(&local->iff_allmultis);
-
- if (sdata->flags & IEEE80211_SDATA_PROMISC)
- atomic_inc(&local->iff_promiscs);
-
- local->open_count++;
-
- netif_start_queue(dev);
-
- return 0;
-}
-
-static int ieee80211_stop(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_if_init_conf conf;
- struct sta_info *sta;
- int i;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- list_for_each_entry(sta, &local->sta_list, list) {
- if (sta->dev == dev)
- for (i = 0; i < STA_TID_NUM; i++)
- ieee80211_sta_stop_rx_ba_session(sta->dev,
- sta->addr, i,
- WLAN_BACK_RECIPIENT,
- WLAN_REASON_QSTA_LEAVE_QBSS);
- }
-
- netif_stop_queue(dev);
-
- /*
- * Don't count this interface for promisc/allmulti while it
- * is down. dev_mc_unsync() will invoke set_multicast_list
- * on the master interface which will sync these down to the
- * hardware as filter flags.
- */
- if (sdata->flags & IEEE80211_SDATA_ALLMULTI)
- atomic_dec(&local->iff_allmultis);
-
- if (sdata->flags & IEEE80211_SDATA_PROMISC)
- atomic_dec(&local->iff_promiscs);
-
- dev_mc_unsync(local->mdev, dev);
-
- /* APs need special treatment */
- if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
- struct ieee80211_sub_if_data *vlan, *tmp;
- struct beacon_data *old_beacon = sdata->u.ap.beacon;
-
- /* remove beacon */
- rcu_assign_pointer(sdata->u.ap.beacon, NULL);
- synchronize_rcu();
- kfree(old_beacon);
-
- /* down all dependent devices, that is VLANs */
- list_for_each_entry_safe(vlan, tmp, &sdata->u.ap.vlans,
- u.vlan.list)
- dev_close(vlan->dev);
- WARN_ON(!list_empty(&sdata->u.ap.vlans));
- }
-
- local->open_count--;
-
- switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_VLAN:
- list_del(&sdata->u.vlan.list);
- sdata->u.vlan.ap = NULL;
- /* no need to tell driver */
- break;
- case IEEE80211_IF_TYPE_MNTR:
- if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) {
- local->cooked_mntrs--;
- break;
- }
-
- local->monitors--;
- if (local->monitors == 0)
- local->hw.conf.flags &= ~IEEE80211_CONF_RADIOTAP;
-
- if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL)
- local->fif_fcsfail--;
- if (sdata->u.mntr_flags & MONITOR_FLAG_PLCPFAIL)
- local->fif_plcpfail--;
- if (sdata->u.mntr_flags & MONITOR_FLAG_CONTROL)
- local->fif_control--;
- if (sdata->u.mntr_flags & MONITOR_FLAG_OTHER_BSS)
- local->fif_other_bss--;
-
- netif_tx_lock_bh(local->mdev);
- ieee80211_configure_filter(local);
- netif_tx_unlock_bh(local->mdev);
- break;
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- sdata->u.sta.state = IEEE80211_DISABLED;
- del_timer_sync(&sdata->u.sta.timer);
- /*
- * When we get here, the interface is marked down.
- * Call synchronize_rcu() to wait for the RX path
- * should it be using the interface and enqueuing
- * frames at this very time on another CPU.
- */
- synchronize_rcu();
- skb_queue_purge(&sdata->u.sta.skb_queue);
-
- if (local->scan_dev == sdata->dev) {
- if (!local->ops->hw_scan) {
- local->sta_sw_scanning = 0;
- cancel_delayed_work(&local->scan_work);
- } else
- local->sta_hw_scanning = 0;
- }
-
- flush_workqueue(local->hw.workqueue);
-
- sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
- kfree(sdata->u.sta.extra_ie);
- sdata->u.sta.extra_ie = NULL;
- sdata->u.sta.extra_ie_len = 0;
- /* fall through */
- default:
- conf.vif = &sdata->vif;
- conf.type = sdata->vif.type;
- conf.mac_addr = dev->dev_addr;
- /* disable all keys for as long as this netdev is down */
- ieee80211_disable_keys(sdata);
- local->ops->remove_interface(local_to_hw(local), &conf);
- }
-
- if (local->open_count == 0) {
- if (netif_running(local->mdev))
- dev_close(local->mdev);
-
- if (local->ops->stop)
- local->ops->stop(local_to_hw(local));
-
- ieee80211_led_radio(local, 0);
-
- tasklet_disable(&local->tx_pending_tasklet);
- tasklet_disable(&local->tasklet);
- }
-
- return 0;
-}
-
-int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct sta_info *sta;
- struct ieee80211_sub_if_data *sdata;
- u16 start_seq_num = 0;
- u8 *state;
- int ret;
- DECLARE_MAC_BUF(mac);
-
- if (tid >= STA_TID_NUM)
- return -EINVAL;
-
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "Open BA session requested for %s tid %u\n",
- print_mac(mac, ra), tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-
- sta = sta_info_get(local, ra);
- if (!sta) {
- printk(KERN_DEBUG "Could not find the station\n");
- return -ENOENT;
- }
-
- spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
-
- /* we have tried too many times, receiver does not want A-MPDU */
- if (sta->ampdu_mlme.tid_tx[tid].addba_req_num > HT_AGG_MAX_RETRIES) {
- ret = -EBUSY;
- goto start_ba_exit;
- }
-
- state = &sta->ampdu_mlme.tid_tx[tid].state;
- /* check if the TID is not in aggregation flow already */
- if (*state != HT_AGG_STATE_IDLE) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "BA request denied - session is not "
- "idle on tid %u\n", tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
- ret = -EAGAIN;
- goto start_ba_exit;
- }
-
- /* ensure that TX flow won't interrupt us
- * until the end of the call to requeue function */
- spin_lock_bh(&local->mdev->queue_lock);
-
- /* create a new queue for this aggregation */
- ret = ieee80211_ht_agg_queue_add(local, sta, tid);
-
- /* case no queue is available to aggregation
- * don't switch to aggregation */
- if (ret) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "BA request denied - no queue available for"
- " tid %d\n", tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
- spin_unlock_bh(&local->mdev->queue_lock);
- goto start_ba_exit;
- }
- sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
-
- /* Ok, the Addba frame hasn't been sent yet, but if the driver calls the
- * call back right away, it must see that the flow has begun */
- *state |= HT_ADDBA_REQUESTED_MSK;
-
- if (local->ops->ampdu_action)
- ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_START,
- ra, tid, &start_seq_num);
-
- if (ret) {
- /* No need to requeue the packets in the agg queue, since we
- * held the tx lock: no packet could be enqueued to the newly
- * allocated queue */
- ieee80211_ht_agg_queue_remove(local, sta, tid, 0);
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "BA request denied - HW or queue unavailable"
- " for tid %d\n", tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
- spin_unlock_bh(&local->mdev->queue_lock);
- *state = HT_AGG_STATE_IDLE;
- goto start_ba_exit;
- }
-
- /* Will put all the packets in the new SW queue */
- ieee80211_requeue(local, ieee802_1d_to_ac[tid]);
- spin_unlock_bh(&local->mdev->queue_lock);
-
- /* We have most probably almost emptied the legacy queue */
- /* ieee80211_wake_queue(local_to_hw(local), ieee802_1d_to_ac[tid]); */
-
- /* send an addBA request */
- sta->ampdu_mlme.dialog_token_allocator++;
- sta->ampdu_mlme.tid_tx[tid].dialog_token =
- sta->ampdu_mlme.dialog_token_allocator;
- sta->ampdu_mlme.tid_tx[tid].ssn = start_seq_num;
-
- ieee80211_send_addba_request(sta->dev, ra, tid,
- sta->ampdu_mlme.tid_tx[tid].dialog_token,
- sta->ampdu_mlme.tid_tx[tid].ssn,
- 0x40, 5000);
-
- /* activate the timer for the recipient's addBA response */
- sta->ampdu_mlme.tid_tx[tid].addba_resp_timer.expires =
- jiffies + ADDBA_RESP_INTERVAL;
- add_timer(&sta->ampdu_mlme.tid_tx[tid].addba_resp_timer);
- printk(KERN_DEBUG "activated addBA response timer on tid %d\n", tid);
-
-start_ba_exit:
- spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
- sta_info_put(sta);
- return ret;
-}
-EXPORT_SYMBOL(ieee80211_start_tx_ba_session);
-
-int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw,
- u8 *ra, u16 tid,
- enum ieee80211_back_parties initiator)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct sta_info *sta;
- u8 *state;
- int ret = 0;
- DECLARE_MAC_BUF(mac);
-
- if (tid >= STA_TID_NUM)
- return -EINVAL;
-
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "Stop a BA session requested for %s tid %u\n",
- print_mac(mac, ra), tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-
- sta = sta_info_get(local, ra);
- if (!sta)
- return -ENOENT;
-
- /* check if the TID is in aggregation */
- state = &sta->ampdu_mlme.tid_tx[tid].state;
- spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
-
- if (*state != HT_AGG_STATE_OPERATIONAL) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "Try to stop Tx aggregation on"
- " non active TID\n");
-#endif /* CONFIG_MAC80211_HT_DEBUG */
- ret = -ENOENT;
- goto stop_BA_exit;
- }
-
- ieee80211_stop_queue(hw, sta->tid_to_tx_q[tid]);
-
- *state = HT_AGG_STATE_REQ_STOP_BA_MSK |
- (initiator << HT_AGG_STATE_INITIATOR_SHIFT);
-
- if (local->ops->ampdu_action)
- ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_TX_STOP,
- ra, tid, NULL);
-
- /* case HW denied going back to legacy */
- if (ret) {
- WARN_ON(ret != -EBUSY);
- *state = HT_AGG_STATE_OPERATIONAL;
- ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
- goto stop_BA_exit;
- }
-
-stop_BA_exit:
- spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
- sta_info_put(sta);
- return ret;
-}
-EXPORT_SYMBOL(ieee80211_stop_tx_ba_session);
-
-void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct sta_info *sta;
- u8 *state;
- DECLARE_MAC_BUF(mac);
-
- if (tid >= STA_TID_NUM) {
- printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n",
- tid, STA_TID_NUM);
- return;
- }
-
- sta = sta_info_get(local, ra);
- if (!sta) {
- printk(KERN_DEBUG "Could not find station: %s\n",
- print_mac(mac, ra));
- return;
- }
-
- state = &sta->ampdu_mlme.tid_tx[tid].state;
- spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
-
- if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
- printk(KERN_DEBUG "addBA was not requested yet, state is %d\n",
- *state);
- spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
- sta_info_put(sta);
- return;
- }
-
- WARN_ON_ONCE(*state & HT_ADDBA_DRV_READY_MSK);
-
- *state |= HT_ADDBA_DRV_READY_MSK;
-
- if (*state == HT_AGG_STATE_OPERATIONAL) {
- printk(KERN_DEBUG "Aggregation is on for tid %d \n", tid);
- ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
- }
- spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
- sta_info_put(sta);
-}
-EXPORT_SYMBOL(ieee80211_start_tx_ba_cb);
-
-void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct sta_info *sta;
- u8 *state;
- int agg_queue;
- DECLARE_MAC_BUF(mac);
-
- if (tid >= STA_TID_NUM) {
- printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n",
- tid, STA_TID_NUM);
- return;
- }
-
- printk(KERN_DEBUG "Stop a BA session requested on DA %s tid %d\n",
- print_mac(mac, ra), tid);
-
- sta = sta_info_get(local, ra);
- if (!sta) {
- printk(KERN_DEBUG "Could not find station: %s\n",
- print_mac(mac, ra));
- return;
- }
- state = &sta->ampdu_mlme.tid_tx[tid].state;
-
- spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
- if ((*state & HT_AGG_STATE_REQ_STOP_BA_MSK) == 0) {
- printk(KERN_DEBUG "unexpected callback to A-MPDU stop\n");
- sta_info_put(sta);
- spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
- return;
- }
-
- if (*state & HT_AGG_STATE_INITIATOR_MSK)
- ieee80211_send_delba(sta->dev, ra, tid,
- WLAN_BACK_INITIATOR, WLAN_REASON_QSTA_NOT_USE);
-
- agg_queue = sta->tid_to_tx_q[tid];
-
- /* avoid ordering issues: we are the only one that can modify
- * the content of the qdiscs */
- spin_lock_bh(&local->mdev->queue_lock);
- /* remove the queue for this aggregation */
- ieee80211_ht_agg_queue_remove(local, sta, tid, 1);
- spin_unlock_bh(&local->mdev->queue_lock);
-
- /* we just requeued the all the frames that were in the removed
- * queue, and since we might miss a softirq we do netif_schedule.
- * ieee80211_wake_queue is not used here as this queue is not
- * necessarily stopped */
- netif_schedule(local->mdev);
- *state = HT_AGG_STATE_IDLE;
- sta->ampdu_mlme.tid_tx[tid].addba_req_num = 0;
- spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
-
- sta_info_put(sta);
-}
-EXPORT_SYMBOL(ieee80211_stop_tx_ba_cb);
-
-void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_hw *hw,
- const u8 *ra, u16 tid)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_ra_tid *ra_tid;
- struct sk_buff *skb = dev_alloc_skb(0);
-
- if (unlikely(!skb)) {
- if (net_ratelimit())
- printk(KERN_WARNING "%s: Not enough memory, "
- "dropping start BA session", skb->dev->name);
- return;
- }
- ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
- memcpy(&ra_tid->ra, ra, ETH_ALEN);
- ra_tid->tid = tid;
-
- skb->pkt_type = IEEE80211_ADDBA_MSG;
- skb_queue_tail(&local->skb_queue, skb);
- tasklet_schedule(&local->tasklet);
-}
-EXPORT_SYMBOL(ieee80211_start_tx_ba_cb_irqsafe);
-
-void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_hw *hw,
- const u8 *ra, u16 tid)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_ra_tid *ra_tid;
- struct sk_buff *skb = dev_alloc_skb(0);
-
- if (unlikely(!skb)) {
- if (net_ratelimit())
- printk(KERN_WARNING "%s: Not enough memory, "
- "dropping stop BA session", skb->dev->name);
- return;
- }
- ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
- memcpy(&ra_tid->ra, ra, ETH_ALEN);
- ra_tid->tid = tid;
-
- skb->pkt_type = IEEE80211_DELBA_MSG;
- skb_queue_tail(&local->skb_queue, skb);
- tasklet_schedule(&local->tasklet);
-}
-EXPORT_SYMBOL(ieee80211_stop_tx_ba_cb_irqsafe);
-
-static void ieee80211_set_multicast_list(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- int allmulti, promisc, sdata_allmulti, sdata_promisc;
-
- allmulti = !!(dev->flags & IFF_ALLMULTI);
- promisc = !!(dev->flags & IFF_PROMISC);
- sdata_allmulti = !!(sdata->flags & IEEE80211_SDATA_ALLMULTI);
- sdata_promisc = !!(sdata->flags & IEEE80211_SDATA_PROMISC);
-
- if (allmulti != sdata_allmulti) {
- if (dev->flags & IFF_ALLMULTI)
- atomic_inc(&local->iff_allmultis);
- else
- atomic_dec(&local->iff_allmultis);
- sdata->flags ^= IEEE80211_SDATA_ALLMULTI;
- }
-
- if (promisc != sdata_promisc) {
- if (dev->flags & IFF_PROMISC)
- atomic_inc(&local->iff_promiscs);
- else
- atomic_dec(&local->iff_promiscs);
- sdata->flags ^= IEEE80211_SDATA_PROMISC;
- }
-
- dev_mc_sync(local->mdev, dev);
-}
-
-static const struct header_ops ieee80211_header_ops = {
- .create = eth_header,
- .parse = header_parse_80211,
- .rebuild = eth_rebuild_header,
- .cache = eth_header_cache,
- .cache_update = eth_header_cache_update,
-};
-
-/* Must not be called for mdev */
-void ieee80211_if_setup(struct net_device *dev)
-{
- ether_setup(dev);
- dev->hard_start_xmit = ieee80211_subif_start_xmit;
- dev->wireless_handlers = &ieee80211_iw_handler_def;
- dev->set_multicast_list = ieee80211_set_multicast_list;
- dev->change_mtu = ieee80211_change_mtu;
- dev->open = ieee80211_open;
- dev->stop = ieee80211_stop;
- dev->destructor = ieee80211_if_free;
-}
-
-/* WDS specialties */
-
-int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct sta_info *sta;
- DECLARE_MAC_BUF(mac);
-
- if (compare_ether_addr(remote_addr, sdata->u.wds.remote_addr) == 0)
- return 0;
-
- /* Create STA entry for the new peer */
- sta = sta_info_add(local, dev, remote_addr, GFP_KERNEL);
- if (!sta)
- return -ENOMEM;
-
- sta->flags |= WLAN_STA_AUTHORIZED;
-
- sta_info_put(sta);
-
- /* Remove STA entry for the old peer */
- sta = sta_info_get(local, sdata->u.wds.remote_addr);
- if (sta) {
- sta_info_free(sta);
- sta_info_put(sta);
- } else {
- printk(KERN_DEBUG "%s: could not find STA entry for WDS link "
- "peer %s\n",
- dev->name, print_mac(mac, sdata->u.wds.remote_addr));
- }
-
- /* Update WDS link data */
- memcpy(&sdata->u.wds.remote_addr, remote_addr, ETH_ALEN);
-
- return 0;
-}
-
-/* everything else */
-
-static int __ieee80211_if_config(struct net_device *dev,
- struct sk_buff *beacon,
- struct ieee80211_tx_control *control)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_if_conf conf;
-
- if (!local->ops->config_interface || !netif_running(dev))
- return 0;
-
- memset(&conf, 0, sizeof(conf));
- conf.type = sdata->vif.type;
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
- conf.bssid = sdata->u.sta.bssid;
- conf.ssid = sdata->u.sta.ssid;
- conf.ssid_len = sdata->u.sta.ssid_len;
- } else if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
- conf.ssid = sdata->u.ap.ssid;
- conf.ssid_len = sdata->u.ap.ssid_len;
- conf.beacon = beacon;
- conf.beacon_control = control;
- }
- return local->ops->config_interface(local_to_hw(local),
- &sdata->vif, &conf);
-}
-
-int ieee80211_if_config(struct net_device *dev)
-{
- return __ieee80211_if_config(dev, NULL, NULL);
-}
-
-int ieee80211_if_config_beacon(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_tx_control control;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct sk_buff *skb;
-
- if (!(local->hw.flags & IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE))
- return 0;
- skb = ieee80211_beacon_get(local_to_hw(local), &sdata->vif,
- &control);
- if (!skb)
- return -ENOMEM;
- return __ieee80211_if_config(dev, skb, &control);
-}
-
-int ieee80211_hw_config(struct ieee80211_local *local)
-{
- struct ieee80211_channel *chan;
- int ret = 0;
-
- if (local->sta_sw_scanning)
- chan = local->scan_channel;
- else
- chan = local->oper_channel;
-
- local->hw.conf.channel = chan;
-
- if (!local->hw.conf.power_level)
- local->hw.conf.power_level = chan->max_power;
- else
- local->hw.conf.power_level = min(chan->max_power,
- local->hw.conf.power_level);
-
- local->hw.conf.max_antenna_gain = chan->max_antenna_gain;
-
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: HW CONFIG: freq=%d\n",
- wiphy_name(local->hw.wiphy), chan->center_freq);
-#endif
-
- if (local->open_count)
- ret = local->ops->config(local_to_hw(local), &local->hw.conf);
-
- return ret;
-}
-
-/**
- * ieee80211_hw_config_ht should be used only after legacy configuration
- * has been determined, as ht configuration depends upon the hardware's
- * HT abilities for a _specific_ band.
- */
-int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht,
- struct ieee80211_ht_info *req_ht_cap,
- struct ieee80211_ht_bss_info *req_bss_cap)
-{
- struct ieee80211_conf *conf = &local->hw.conf;
- struct ieee80211_supported_band *sband;
- int i;
-
- sband = local->hw.wiphy->bands[conf->channel->band];
-
- /* HT is not supported */
- if (!sband->ht_info.ht_supported) {
- conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE;
- return -EOPNOTSUPP;
- }
-
- /* disable HT */
- if (!enable_ht) {
- conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE;
- } else {
- conf->flags |= IEEE80211_CONF_SUPPORT_HT_MODE;
- conf->ht_conf.cap = req_ht_cap->cap & sband->ht_info.cap;
- conf->ht_conf.cap &= ~(IEEE80211_HT_CAP_MIMO_PS);
- conf->ht_conf.cap |=
- sband->ht_info.cap & IEEE80211_HT_CAP_MIMO_PS;
- conf->ht_bss_conf.primary_channel =
- req_bss_cap->primary_channel;
- conf->ht_bss_conf.bss_cap = req_bss_cap->bss_cap;
- conf->ht_bss_conf.bss_op_mode = req_bss_cap->bss_op_mode;
- for (i = 0; i < SUPP_MCS_SET_LEN; i++)
- conf->ht_conf.supp_mcs_set[i] =
- sband->ht_info.supp_mcs_set[i] &
- req_ht_cap->supp_mcs_set[i];
-
- /* In STA mode, this gives us indication
- * to the AP's mode of operation */
- conf->ht_conf.ht_supported = 1;
- conf->ht_conf.ampdu_factor = req_ht_cap->ampdu_factor;
- conf->ht_conf.ampdu_density = req_ht_cap->ampdu_density;
- }
-
- local->ops->conf_ht(local_to_hw(local), &local->hw.conf);
-
- return 0;
-}
-
-void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
- u32 changed)
-{
- struct ieee80211_local *local = sdata->local;
-
- if (!changed)
- return;
-
- if (local->ops->bss_info_changed)
- local->ops->bss_info_changed(local_to_hw(local),
- &sdata->vif,
- &sdata->bss_conf,
- changed);
-}
-
-void ieee80211_reset_erp_info(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- sdata->bss_conf.use_cts_prot = 0;
- sdata->bss_conf.use_short_preamble = 0;
- ieee80211_bss_info_change_notify(sdata,
- BSS_CHANGED_ERP_CTS_PROT |
- BSS_CHANGED_ERP_PREAMBLE);
-}
-
-void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw,
- struct sk_buff *skb,
- struct ieee80211_tx_status *status)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_tx_status *saved;
- int tmp;
-
- skb->dev = local->mdev;
- saved = kmalloc(sizeof(struct ieee80211_tx_status), GFP_ATOMIC);
- if (unlikely(!saved)) {
- if (net_ratelimit())
- printk(KERN_WARNING "%s: Not enough memory, "
- "dropping tx status", skb->dev->name);
- /* should be dev_kfree_skb_irq, but due to this function being
- * named _irqsafe instead of just _irq we can't be sure that
- * people won't call it from non-irq contexts */
- dev_kfree_skb_any(skb);
- return;
- }
- memcpy(saved, status, sizeof(struct ieee80211_tx_status));
- /* copy pointer to saved status into skb->cb for use by tasklet */
- memcpy(skb->cb, &saved, sizeof(saved));
-
- skb->pkt_type = IEEE80211_TX_STATUS_MSG;
- skb_queue_tail(status->control.flags & IEEE80211_TXCTL_REQ_TX_STATUS ?
- &local->skb_queue : &local->skb_queue_unreliable, skb);
- tmp = skb_queue_len(&local->skb_queue) +
- skb_queue_len(&local->skb_queue_unreliable);
- while (tmp > IEEE80211_IRQSAFE_QUEUE_LIMIT &&
- (skb = skb_dequeue(&local->skb_queue_unreliable))) {
- memcpy(&saved, skb->cb, sizeof(saved));
- kfree(saved);
- dev_kfree_skb_irq(skb);
- tmp--;
- I802_DEBUG_INC(local->tx_status_drop);
- }
- tasklet_schedule(&local->tasklet);
-}
-EXPORT_SYMBOL(ieee80211_tx_status_irqsafe);
-
-static void ieee80211_tasklet_handler(unsigned long data)
-{
- struct ieee80211_local *local = (struct ieee80211_local *) data;
- struct sk_buff *skb;
- struct ieee80211_rx_status rx_status;
- struct ieee80211_tx_status *tx_status;
- struct ieee80211_ra_tid *ra_tid;
-
- while ((skb = skb_dequeue(&local->skb_queue)) ||
- (skb = skb_dequeue(&local->skb_queue_unreliable))) {
- switch (skb->pkt_type) {
- case IEEE80211_RX_MSG:
- /* status is in skb->cb */
- memcpy(&rx_status, skb->cb, sizeof(rx_status));
- /* Clear skb->pkt_type in order to not confuse kernel
- * netstack. */
- skb->pkt_type = 0;
- __ieee80211_rx(local_to_hw(local), skb, &rx_status);
- break;
- case IEEE80211_TX_STATUS_MSG:
- /* get pointer to saved status out of skb->cb */
- memcpy(&tx_status, skb->cb, sizeof(tx_status));
- skb->pkt_type = 0;
- ieee80211_tx_status(local_to_hw(local),
- skb, tx_status);
- kfree(tx_status);
- break;
- case IEEE80211_DELBA_MSG:
- ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
- ieee80211_stop_tx_ba_cb(local_to_hw(local),
- ra_tid->ra, ra_tid->tid);
- dev_kfree_skb(skb);
- break;
- case IEEE80211_ADDBA_MSG:
- ra_tid = (struct ieee80211_ra_tid *) &skb->cb;
- ieee80211_start_tx_ba_cb(local_to_hw(local),
- ra_tid->ra, ra_tid->tid);
- dev_kfree_skb(skb);
- break ;
- default: /* should never get here! */
- printk(KERN_ERR "%s: Unknown message type (%d)\n",
- wiphy_name(local->hw.wiphy), skb->pkt_type);
- dev_kfree_skb(skb);
- break;
- }
- }
-}
-
-/* Remove added headers (e.g., QoS control), encryption header/MIC, etc. to
- * make a prepared TX frame (one that has been given to hw) to look like brand
- * new IEEE 802.11 frame that is ready to go through TX processing again.
- * Also, tx_packet_data in cb is restored from tx_control. */
-static void ieee80211_remove_tx_extra(struct ieee80211_local *local,
- struct ieee80211_key *key,
- struct sk_buff *skb,
- struct ieee80211_tx_control *control)
-{
- int hdrlen, iv_len, mic_len;
- struct ieee80211_tx_packet_data *pkt_data;
-
- pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
- pkt_data->ifindex = vif_to_sdata(control->vif)->dev->ifindex;
- pkt_data->flags = 0;
- if (control->flags & IEEE80211_TXCTL_REQ_TX_STATUS)
- pkt_data->flags |= IEEE80211_TXPD_REQ_TX_STATUS;
- if (control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT)
- pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
- if (control->flags & IEEE80211_TXCTL_REQUEUE)
- pkt_data->flags |= IEEE80211_TXPD_REQUEUE;
- if (control->flags & IEEE80211_TXCTL_EAPOL_FRAME)
- pkt_data->flags |= IEEE80211_TXPD_EAPOL_FRAME;
- pkt_data->queue = control->queue;
-
- hdrlen = ieee80211_get_hdrlen_from_skb(skb);
-
- if (!key)
- goto no_key;
-
- switch (key->conf.alg) {
- case ALG_WEP:
- iv_len = WEP_IV_LEN;
- mic_len = WEP_ICV_LEN;
- break;
- case ALG_TKIP:
- iv_len = TKIP_IV_LEN;
- mic_len = TKIP_ICV_LEN;
- break;
- case ALG_CCMP:
- iv_len = CCMP_HDR_LEN;
- mic_len = CCMP_MIC_LEN;
- break;
- default:
- goto no_key;
- }
-
- if (skb->len >= mic_len &&
- !(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
- skb_trim(skb, skb->len - mic_len);
- if (skb->len >= iv_len && skb->len > hdrlen) {
- memmove(skb->data + iv_len, skb->data, hdrlen);
- skb_pull(skb, iv_len);
- }
-
-no_key:
- {
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u16 fc = le16_to_cpu(hdr->frame_control);
- if ((fc & 0x8C) == 0x88) /* QoS Control Field */ {
- fc &= ~IEEE80211_STYPE_QOS_DATA;
- hdr->frame_control = cpu_to_le16(fc);
- memmove(skb->data + 2, skb->data, hdrlen - 2);
- skb_pull(skb, 2);
- }
- }
-}
-
-void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_tx_status *status)
-{
- struct sk_buff *skb2;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct ieee80211_local *local = hw_to_local(hw);
- u16 frag, type;
- struct ieee80211_tx_status_rtap_hdr *rthdr;
- struct ieee80211_sub_if_data *sdata;
- struct net_device *prev_dev = NULL;
-
- if (!status) {
- printk(KERN_ERR
- "%s: ieee80211_tx_status called with NULL status\n",
- wiphy_name(local->hw.wiphy));
- dev_kfree_skb(skb);
- return;
- }
-
- if (status->excessive_retries) {
- struct sta_info *sta;
- sta = sta_info_get(local, hdr->addr1);
- if (sta) {
- if (sta->flags & WLAN_STA_PS) {
- /* The STA is in power save mode, so assume
- * that this TX packet failed because of that.
- */
- status->excessive_retries = 0;
- status->flags |= IEEE80211_TX_STATUS_TX_FILTERED;
- }
- sta_info_put(sta);
- }
- }
-
- if (status->flags & IEEE80211_TX_STATUS_TX_FILTERED) {
- struct sta_info *sta;
- sta = sta_info_get(local, hdr->addr1);
- if (sta) {
- sta->tx_filtered_count++;
-
- /* Clear the TX filter mask for this STA when sending
- * the next packet. If the STA went to power save mode,
- * this will happen when it is waking up for the next
- * time. */
- sta->clear_dst_mask = 1;
-
- /* TODO: Is the WLAN_STA_PS flag always set here or is
- * the race between RX and TX status causing some
- * packets to be filtered out before 80211.o gets an
- * update for PS status? This seems to be the case, so
- * no changes are likely to be needed. */
- if (sta->flags & WLAN_STA_PS &&
- skb_queue_len(&sta->tx_filtered) <
- STA_MAX_TX_BUFFER) {
- ieee80211_remove_tx_extra(local, sta->key,
- skb,
- &status->control);
- skb_queue_tail(&sta->tx_filtered, skb);
- } else if (!(sta->flags & WLAN_STA_PS) &&
- !(status->control.flags & IEEE80211_TXCTL_REQUEUE)) {
- /* Software retry the packet once */
- status->control.flags |= IEEE80211_TXCTL_REQUEUE;
- ieee80211_remove_tx_extra(local, sta->key,
- skb,
- &status->control);
- dev_queue_xmit(skb);
- } else {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: dropped TX "
- "filtered frame queue_len=%d "
- "PS=%d @%lu\n",
- wiphy_name(local->hw.wiphy),
- skb_queue_len(
- &sta->tx_filtered),
- !!(sta->flags & WLAN_STA_PS),
- jiffies);
- }
- dev_kfree_skb(skb);
- }
- sta_info_put(sta);
- return;
- }
- } else
- rate_control_tx_status(local->mdev, skb, status);
-
- ieee80211_led_tx(local, 0);
-
- /* SNMP counters
- * Fragments are passed to low-level drivers as separate skbs, so these
- * are actually fragments, not frames. Update frame counters only for
- * the first fragment of the frame. */
-
- frag = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG;
- type = le16_to_cpu(hdr->frame_control) & IEEE80211_FCTL_FTYPE;
-
- if (status->flags & IEEE80211_TX_STATUS_ACK) {
- if (frag == 0) {
- local->dot11TransmittedFrameCount++;
- if (is_multicast_ether_addr(hdr->addr1))
- local->dot11MulticastTransmittedFrameCount++;
- if (status->retry_count > 0)
- local->dot11RetryCount++;
- if (status->retry_count > 1)
- local->dot11MultipleRetryCount++;
- }
-
- /* This counter shall be incremented for an acknowledged MPDU
- * with an individual address in the address 1 field or an MPDU
- * with a multicast address in the address 1 field of type Data
- * or Management. */
- if (!is_multicast_ether_addr(hdr->addr1) ||
- type == IEEE80211_FTYPE_DATA ||
- type == IEEE80211_FTYPE_MGMT)
- local->dot11TransmittedFragmentCount++;
- } else {
- if (frag == 0)
- local->dot11FailedCount++;
- }
-
- /* this was a transmitted frame, but now we want to reuse it */
- skb_orphan(skb);
-
- /*
- * This is a bit racy but we can avoid a lot of work
- * with this test...
- */
- if (!local->monitors && !local->cooked_mntrs) {
- dev_kfree_skb(skb);
- return;
- }
-
- /* send frame to monitor interfaces now */
-
- if (skb_headroom(skb) < sizeof(*rthdr)) {
- printk(KERN_ERR "ieee80211_tx_status: headroom too small\n");
- dev_kfree_skb(skb);
- return;
- }
-
- rthdr = (struct ieee80211_tx_status_rtap_hdr*)
- skb_push(skb, sizeof(*rthdr));
-
- memset(rthdr, 0, sizeof(*rthdr));
- rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr));
- rthdr->hdr.it_present =
- cpu_to_le32((1 << IEEE80211_RADIOTAP_TX_FLAGS) |
- (1 << IEEE80211_RADIOTAP_DATA_RETRIES));
-
- if (!(status->flags & IEEE80211_TX_STATUS_ACK) &&
- !is_multicast_ether_addr(hdr->addr1))
- rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_FAIL);
-
- if ((status->control.flags & IEEE80211_TXCTL_USE_RTS_CTS) &&
- (status->control.flags & IEEE80211_TXCTL_USE_CTS_PROTECT))
- rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_CTS);
- else if (status->control.flags & IEEE80211_TXCTL_USE_RTS_CTS)
- rthdr->tx_flags |= cpu_to_le16(IEEE80211_RADIOTAP_F_TX_RTS);
-
- rthdr->data_retries = status->retry_count;
-
- /* XXX: is this sufficient for BPF? */
- skb_set_mac_header(skb, 0);
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- skb->pkt_type = PACKET_OTHERHOST;
- skb->protocol = htons(ETH_P_802_2);
- memset(skb->cb, 0, sizeof(skb->cb));
-
- rcu_read_lock();
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
- if (sdata->vif.type == IEEE80211_IF_TYPE_MNTR) {
- if (!netif_running(sdata->dev))
- continue;
-
- if (prev_dev) {
- skb2 = skb_clone(skb, GFP_ATOMIC);
- if (skb2) {
- skb2->dev = prev_dev;
- netif_rx(skb2);
- }
- }
-
- prev_dev = sdata->dev;
- }
- }
- if (prev_dev) {
- skb->dev = prev_dev;
- netif_rx(skb);
- skb = NULL;
- }
- rcu_read_unlock();
- dev_kfree_skb(skb);
-}
-EXPORT_SYMBOL(ieee80211_tx_status);
-
-struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
- const struct ieee80211_ops *ops)
-{
- struct net_device *mdev;
- struct ieee80211_local *local;
- struct ieee80211_sub_if_data *sdata;
- int priv_size;
- struct wiphy *wiphy;
-
- /* Ensure 32-byte alignment of our private data and hw private data.
- * We use the wiphy priv data for both our ieee80211_local and for
- * the driver's private data
- *
- * In memory it'll be like this:
- *
- * +-------------------------+
- * | struct wiphy |
- * +-------------------------+
- * | struct ieee80211_local |
- * +-------------------------+
- * | driver's private data |
- * +-------------------------+
- *
- */
- priv_size = ((sizeof(struct ieee80211_local) +
- NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST) +
- priv_data_len;
-
- wiphy = wiphy_new(&mac80211_config_ops, priv_size);
-
- if (!wiphy)
- return NULL;
-
- wiphy->privid = mac80211_wiphy_privid;
-
- local = wiphy_priv(wiphy);
- local->hw.wiphy = wiphy;
-
- local->hw.priv = (char *)local +
- ((sizeof(struct ieee80211_local) +
- NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST);
-
- BUG_ON(!ops->tx);
- BUG_ON(!ops->start);
- BUG_ON(!ops->stop);
- BUG_ON(!ops->config);
- BUG_ON(!ops->add_interface);
- BUG_ON(!ops->remove_interface);
- BUG_ON(!ops->configure_filter);
- local->ops = ops;
-
- /* for now, mdev needs sub_if_data :/ */
- mdev = alloc_netdev(sizeof(struct ieee80211_sub_if_data),
- "wmaster%d", ether_setup);
- if (!mdev) {
- wiphy_free(wiphy);
- return NULL;
- }
-
- sdata = IEEE80211_DEV_TO_SUB_IF(mdev);
- mdev->ieee80211_ptr = &sdata->wdev;
- sdata->wdev.wiphy = wiphy;
-
- local->hw.queues = 1; /* default */
-
- local->mdev = mdev;
-
- local->bridge_packets = 1;
-
- local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
- local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
- local->short_retry_limit = 7;
- local->long_retry_limit = 4;
- local->hw.conf.radio_enabled = 1;
-
- INIT_LIST_HEAD(&local->interfaces);
-
- INIT_DELAYED_WORK(&local->scan_work, ieee80211_sta_scan_work);
- ieee80211_rx_bss_list_init(mdev);
-
- sta_info_init(local);
-
- mdev->hard_start_xmit = ieee80211_master_start_xmit;
- mdev->open = ieee80211_master_open;
- mdev->stop = ieee80211_master_stop;
- mdev->type = ARPHRD_IEEE80211;
- mdev->header_ops = &ieee80211_header_ops;
- mdev->set_multicast_list = ieee80211_master_set_multicast_list;
-
- sdata->vif.type = IEEE80211_IF_TYPE_AP;
- sdata->dev = mdev;
- sdata->local = local;
- sdata->u.ap.force_unicast_rateidx = -1;
- sdata->u.ap.max_ratectrl_rateidx = -1;
- ieee80211_if_sdata_init(sdata);
- /* no RCU needed since we're still during init phase */
- list_add_tail(&sdata->list, &local->interfaces);
-
- tasklet_init(&local->tx_pending_tasklet, ieee80211_tx_pending,
- (unsigned long)local);
- tasklet_disable(&local->tx_pending_tasklet);
-
- tasklet_init(&local->tasklet,
- ieee80211_tasklet_handler,
- (unsigned long) local);
- tasklet_disable(&local->tasklet);
-
- skb_queue_head_init(&local->skb_queue);
- skb_queue_head_init(&local->skb_queue_unreliable);
-
- return local_to_hw(local);
-}
-EXPORT_SYMBOL(ieee80211_alloc_hw);
-
-int ieee80211_register_hw(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- const char *name;
- int result;
- enum ieee80211_band band;
-
- /*
- * generic code guarantees at least one band,
- * set this very early because much code assumes
- * that hw.conf.channel is assigned
- */
- for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
- struct ieee80211_supported_band *sband;
-
- sband = local->hw.wiphy->bands[band];
- if (sband) {
- /* init channel we're on */
- local->hw.conf.channel =
- local->oper_channel =
- local->scan_channel = &sband->channels[0];
- break;
- }
- }
-
- result = wiphy_register(local->hw.wiphy);
- if (result < 0)
- return result;
-
- name = wiphy_dev(local->hw.wiphy)->driver->name;
- local->hw.workqueue = create_singlethread_workqueue(name);
- if (!local->hw.workqueue) {
- result = -ENOMEM;
- goto fail_workqueue;
- }
-
- /*
- * The hardware needs headroom for sending the frame,
- * and we need some headroom for passing the frame to monitor
- * interfaces, but never both at the same time.
- */
- local->tx_headroom = max_t(unsigned int , local->hw.extra_tx_headroom,
- sizeof(struct ieee80211_tx_status_rtap_hdr));
-
- debugfs_hw_add(local);
-
- local->hw.conf.beacon_int = 1000;
-
- local->wstats_flags |= local->hw.max_rssi ?
- IW_QUAL_LEVEL_UPDATED : IW_QUAL_LEVEL_INVALID;
- local->wstats_flags |= local->hw.max_signal ?
- IW_QUAL_QUAL_UPDATED : IW_QUAL_QUAL_INVALID;
- local->wstats_flags |= local->hw.max_noise ?
- IW_QUAL_NOISE_UPDATED : IW_QUAL_NOISE_INVALID;
- if (local->hw.max_rssi < 0 || local->hw.max_noise < 0)
- local->wstats_flags |= IW_QUAL_DBM;
-
- result = sta_info_start(local);
- if (result < 0)
- goto fail_sta_info;
-
- rtnl_lock();
- result = dev_alloc_name(local->mdev, local->mdev->name);
- if (result < 0)
- goto fail_dev;
-
- memcpy(local->mdev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN);
- SET_NETDEV_DEV(local->mdev, wiphy_dev(local->hw.wiphy));
-
- result = register_netdevice(local->mdev);
- if (result < 0)
- goto fail_dev;
-
- ieee80211_debugfs_add_netdev(IEEE80211_DEV_TO_SUB_IF(local->mdev));
- ieee80211_if_set_type(local->mdev, IEEE80211_IF_TYPE_AP);
-
- result = ieee80211_init_rate_ctrl_alg(local,
- hw->rate_control_algorithm);
- if (result < 0) {
- printk(KERN_DEBUG "%s: Failed to initialize rate control "
- "algorithm\n", wiphy_name(local->hw.wiphy));
- goto fail_rate;
- }
-
- result = ieee80211_wep_init(local);
-
- if (result < 0) {
- printk(KERN_DEBUG "%s: Failed to initialize wep\n",
- wiphy_name(local->hw.wiphy));
- goto fail_wep;
- }
-
- ieee80211_install_qdisc(local->mdev);
-
- /* add one default STA interface */
- result = ieee80211_if_add(local->mdev, "wlan%d", NULL,
- IEEE80211_IF_TYPE_STA);
- if (result)
- printk(KERN_WARNING "%s: Failed to add default virtual iface\n",
- wiphy_name(local->hw.wiphy));
-
- local->reg_state = IEEE80211_DEV_REGISTERED;
- rtnl_unlock();
-
- ieee80211_led_init(local);
-
- return 0;
-
-fail_wep:
- rate_control_deinitialize(local);
-fail_rate:
- ieee80211_debugfs_remove_netdev(IEEE80211_DEV_TO_SUB_IF(local->mdev));
- unregister_netdevice(local->mdev);
-fail_dev:
- rtnl_unlock();
- sta_info_stop(local);
-fail_sta_info:
- debugfs_hw_del(local);
- destroy_workqueue(local->hw.workqueue);
-fail_workqueue:
- wiphy_unregister(local->hw.wiphy);
- return result;
-}
-EXPORT_SYMBOL(ieee80211_register_hw);
-
-void ieee80211_unregister_hw(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_sub_if_data *sdata, *tmp;
-
- tasklet_kill(&local->tx_pending_tasklet);
- tasklet_kill(&local->tasklet);
-
- rtnl_lock();
-
- BUG_ON(local->reg_state != IEEE80211_DEV_REGISTERED);
-
- local->reg_state = IEEE80211_DEV_UNREGISTERED;
-
- /*
- * At this point, interface list manipulations are fine
- * because the driver cannot be handing us frames any
- * more and the tasklet is killed.
- */
-
- /*
- * First, we remove all non-master interfaces. Do this because they
- * may have bss pointer dependency on the master, and when we free
- * the master these would be freed as well, breaking our list
- * iteration completely.
- */
- list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
- if (sdata->dev == local->mdev)
- continue;
- list_del(&sdata->list);
- __ieee80211_if_del(local, sdata);
- }
-
- /* then, finally, remove the master interface */
- __ieee80211_if_del(local, IEEE80211_DEV_TO_SUB_IF(local->mdev));
-
- rtnl_unlock();
-
- ieee80211_rx_bss_list_deinit(local->mdev);
- ieee80211_clear_tx_pending(local);
- sta_info_stop(local);
- rate_control_deinitialize(local);
- debugfs_hw_del(local);
-
- if (skb_queue_len(&local->skb_queue)
- || skb_queue_len(&local->skb_queue_unreliable))
- printk(KERN_WARNING "%s: skb_queue not empty\n",
- wiphy_name(local->hw.wiphy));
- skb_queue_purge(&local->skb_queue);
- skb_queue_purge(&local->skb_queue_unreliable);
-
- destroy_workqueue(local->hw.workqueue);
- wiphy_unregister(local->hw.wiphy);
- ieee80211_wep_free(local);
- ieee80211_led_exit(local);
-}
-EXPORT_SYMBOL(ieee80211_unregister_hw);
-
-void ieee80211_free_hw(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
-
- ieee80211_if_free(local->mdev);
- wiphy_free(local->hw.wiphy);
-}
-EXPORT_SYMBOL(ieee80211_free_hw);
-
-static int __init ieee80211_init(void)
-{
- struct sk_buff *skb;
- int ret;
-
- BUILD_BUG_ON(sizeof(struct ieee80211_tx_packet_data) > sizeof(skb->cb));
-
- ret = rc80211_simple_init();
- if (ret)
- goto out;
-
- ret = rc80211_pid_init();
- if (ret)
- goto out_cleanup_simple;
-
- ret = ieee80211_wme_register();
- if (ret) {
- printk(KERN_DEBUG "ieee80211_init: failed to "
- "initialize WME (err=%d)\n", ret);
- goto out_cleanup_pid;
- }
-
- ieee80211_debugfs_netdev_init();
-
- return 0;
-
- out_cleanup_pid:
- rc80211_pid_exit();
- out_cleanup_simple:
- rc80211_simple_exit();
- out:
- return ret;
-}
-
-static void __exit ieee80211_exit(void)
-{
- rc80211_simple_exit();
- rc80211_pid_exit();
-
- ieee80211_wme_unregister();
- ieee80211_debugfs_netdev_exit();
-}
-
-
-subsys_initcall(ieee80211_init);
-module_exit(ieee80211_exit);
-
-MODULE_DESCRIPTION("IEEE 802.11 subsystem");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005, Devicescape Software, Inc.
- * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef IEEE80211_I_H
-#define IEEE80211_I_H
-
-#include <linux/kernel.h>
-#include <linux/device.h>
-#include <linux/if_ether.h>
-#include <linux/interrupt.h>
-#include <linux/list.h>
-#include <linux/netdevice.h>
-#include <linux/skbuff.h>
-#include <linux/workqueue.h>
-#include <linux/types.h>
-#include <linux/spinlock.h>
-#include <linux/etherdevice.h>
-#include <net/wireless.h>
-#include "ieee80211_key.h"
-#include "sta_info.h"
-
-/* ieee80211.o internal definitions, etc. These are not included into
- * low-level drivers. */
-
-#ifndef ETH_P_PAE
-#define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
-#endif /* ETH_P_PAE */
-
-#define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08)
-
-struct ieee80211_local;
-
-#define IEEE80211_ALIGN32_PAD(a) ((4 - ((a) & 3)) & 3)
-
-/* Maximum number of broadcast/multicast frames to buffer when some of the
- * associated stations are using power saving. */
-#define AP_MAX_BC_BUFFER 128
-
-/* Maximum number of frames buffered to all STAs, including multicast frames.
- * Note: increasing this limit increases the potential memory requirement. Each
- * frame can be up to about 2 kB long. */
-#define TOTAL_MAX_TX_BUFFER 512
-
-/* Required encryption head and tailroom */
-#define IEEE80211_ENCRYPT_HEADROOM 8
-#define IEEE80211_ENCRYPT_TAILROOM 12
-
-/* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
- * reception of at least three fragmented frames. This limit can be increased
- * by changing this define, at the cost of slower frame reassembly and
- * increased memory use (about 2 kB of RAM per entry). */
-#define IEEE80211_FRAGMENT_MAX 4
-
-struct ieee80211_fragment_entry {
- unsigned long first_frag_time;
- unsigned int seq;
- unsigned int rx_queue;
- unsigned int last_frag;
- unsigned int extra_len;
- struct sk_buff_head skb_list;
- int ccmp; /* Whether fragments were encrypted with CCMP */
- u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
-};
-
-
-struct ieee80211_sta_bss {
- struct list_head list;
- struct ieee80211_sta_bss *hnext;
- atomic_t users;
-
- u8 bssid[ETH_ALEN];
- u8 ssid[IEEE80211_MAX_SSID_LEN];
- size_t ssid_len;
- u16 capability; /* host byte order */
- enum ieee80211_band band;
- int freq;
- int rssi, signal, noise;
- u8 *wpa_ie;
- size_t wpa_ie_len;
- u8 *rsn_ie;
- size_t rsn_ie_len;
- u8 *wmm_ie;
- size_t wmm_ie_len;
- u8 *ht_ie;
- size_t ht_ie_len;
-#define IEEE80211_MAX_SUPP_RATES 32
- u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
- size_t supp_rates_len;
- int beacon_int;
- u64 timestamp;
-
- int probe_resp;
- unsigned long last_update;
-
- /* during assocation, we save an ERP value from a probe response so
- * that we can feed ERP info to the driver when handling the
- * association completes. these fields probably won't be up-to-date
- * otherwise, you probably don't want to use them. */
- int has_erp_value;
- u8 erp_value;
-};
-
-
-typedef unsigned __bitwise__ ieee80211_tx_result;
-#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
-#define TX_DROP ((__force ieee80211_tx_result) 1u)
-#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
-
-typedef unsigned __bitwise__ ieee80211_rx_result;
-#define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
-#define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
-#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
-#define RX_QUEUED ((__force ieee80211_rx_result) 3u)
-
-
-/* flags used in struct ieee80211_txrx_data.flags */
-/* whether the MSDU was fragmented */
-#define IEEE80211_TXRXD_FRAGMENTED BIT(0)
-#define IEEE80211_TXRXD_TXUNICAST BIT(1)
-#define IEEE80211_TXRXD_TXPS_BUFFERED BIT(2)
-#define IEEE80211_TXRXD_TXPROBE_LAST_FRAG BIT(3)
-#define IEEE80211_TXRXD_RXIN_SCAN BIT(4)
-/* frame is destined to interface currently processed (incl. multicast frames) */
-#define IEEE80211_TXRXD_RXRA_MATCH BIT(5)
-#define IEEE80211_TXRXD_TX_INJECTED BIT(6)
-#define IEEE80211_TXRXD_RX_AMSDU BIT(7)
-#define IEEE80211_TXRXD_RX_CMNTR_REPORTED BIT(8)
-struct ieee80211_txrx_data {
- struct sk_buff *skb;
- struct net_device *dev;
- struct ieee80211_local *local;
- struct ieee80211_sub_if_data *sdata;
- struct sta_info *sta;
- u16 fc, ethertype;
- struct ieee80211_key *key;
- unsigned int flags;
- union {
- struct {
- struct ieee80211_tx_control *control;
- struct ieee80211_channel *channel;
- struct ieee80211_rate *rate;
- /* use this rate (if set) for last fragment; rate can
- * be set to lower rate for the first fragments, e.g.,
- * when using CTS protection with IEEE 802.11g. */
- struct ieee80211_rate *last_frag_rate;
-
- /* Extra fragments (in addition to the first fragment
- * in skb) */
- int num_extra_frag;
- struct sk_buff **extra_frag;
- } tx;
- struct {
- struct ieee80211_rx_status *status;
- struct ieee80211_rate *rate;
- int sent_ps_buffered;
- int queue;
- int load;
- u32 tkip_iv32;
- u16 tkip_iv16;
- } rx;
- } u;
-};
-
-/* flags used in struct ieee80211_tx_packet_data.flags */
-#define IEEE80211_TXPD_REQ_TX_STATUS BIT(0)
-#define IEEE80211_TXPD_DO_NOT_ENCRYPT BIT(1)
-#define IEEE80211_TXPD_REQUEUE BIT(2)
-#define IEEE80211_TXPD_EAPOL_FRAME BIT(3)
-#define IEEE80211_TXPD_AMPDU BIT(4)
-/* Stored in sk_buff->cb */
-struct ieee80211_tx_packet_data {
- int ifindex;
- unsigned long jiffies;
- unsigned int flags;
- u8 queue;
-};
-
-struct ieee80211_tx_stored_packet {
- struct ieee80211_tx_control control;
- struct sk_buff *skb;
- int num_extra_frag;
- struct sk_buff **extra_frag;
- struct ieee80211_rate *last_frag_rate;
- unsigned int last_frag_rate_ctrl_probe;
-};
-
-struct beacon_data {
- u8 *head, *tail;
- int head_len, tail_len;
- int dtim_period;
-};
-
-struct ieee80211_if_ap {
- struct beacon_data *beacon;
-
- struct list_head vlans;
-
- u8 ssid[IEEE80211_MAX_SSID_LEN];
- size_t ssid_len;
-
- /* yes, this looks ugly, but guarantees that we can later use
- * bitmap_empty :)
- * NB: don't ever use set_bit, use bss_tim_set/bss_tim_clear! */
- u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
- atomic_t num_sta_ps; /* number of stations in PS mode */
- struct sk_buff_head ps_bc_buf;
- int dtim_count;
- int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
- int max_ratectrl_rateidx; /* max TX rateidx for rate control */
- int num_beacons; /* number of TXed beacon frames for this BSS */
-};
-
-struct ieee80211_if_wds {
- u8 remote_addr[ETH_ALEN];
- struct sta_info *sta;
-};
-
-struct ieee80211_if_vlan {
- struct ieee80211_sub_if_data *ap;
- struct list_head list;
-};
-
-/* flags used in struct ieee80211_if_sta.flags */
-#define IEEE80211_STA_SSID_SET BIT(0)
-#define IEEE80211_STA_BSSID_SET BIT(1)
-#define IEEE80211_STA_PREV_BSSID_SET BIT(2)
-#define IEEE80211_STA_AUTHENTICATED BIT(3)
-#define IEEE80211_STA_ASSOCIATED BIT(4)
-#define IEEE80211_STA_PROBEREQ_POLL BIT(5)
-#define IEEE80211_STA_CREATE_IBSS BIT(6)
-#define IEEE80211_STA_MIXED_CELL BIT(7)
-#define IEEE80211_STA_WMM_ENABLED BIT(8)
-#define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
-#define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
-#define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
-#define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
-struct ieee80211_if_sta {
- enum {
- IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
- IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
- IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
- } state;
- struct timer_list timer;
- struct work_struct work;
- u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
- u8 ssid[IEEE80211_MAX_SSID_LEN];
- size_t ssid_len;
- u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
- size_t scan_ssid_len;
- u16 aid;
- u16 ap_capab, capab;
- u8 *extra_ie; /* to be added to the end of AssocReq */
- size_t extra_ie_len;
-
- /* The last AssocReq/Resp IEs */
- u8 *assocreq_ies, *assocresp_ies;
- size_t assocreq_ies_len, assocresp_ies_len;
-
- int auth_tries, assoc_tries;
-
- unsigned int flags;
-#define IEEE80211_STA_REQ_SCAN 0
-#define IEEE80211_STA_REQ_AUTH 1
-#define IEEE80211_STA_REQ_RUN 2
- unsigned long request;
- struct sk_buff_head skb_queue;
-
- unsigned long last_probe;
-
-#define IEEE80211_AUTH_ALG_OPEN BIT(0)
-#define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
-#define IEEE80211_AUTH_ALG_LEAP BIT(2)
- unsigned int auth_algs; /* bitfield of allowed auth algs */
- int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
- int auth_transaction;
-
- unsigned long ibss_join_req;
- struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
- u32 supp_rates_bits[IEEE80211_NUM_BANDS];
-
- int wmm_last_param_set;
-};
-
-
-/* flags used in struct ieee80211_sub_if_data.flags */
-#define IEEE80211_SDATA_ALLMULTI BIT(0)
-#define IEEE80211_SDATA_PROMISC BIT(1)
-#define IEEE80211_SDATA_USERSPACE_MLME BIT(2)
-#define IEEE80211_SDATA_OPERATING_GMODE BIT(3)
-struct ieee80211_sub_if_data {
- struct list_head list;
-
- struct wireless_dev wdev;
-
- /* keys */
- struct list_head key_list;
-
- struct net_device *dev;
- struct ieee80211_local *local;
-
- unsigned int flags;
-
- int drop_unencrypted;
-
- /*
- * basic rates of this AP or the AP we're associated to
- */
- u64 basic_rates;
-
- u16 sequence;
-
- /* Fragment table for host-based reassembly */
- struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
- unsigned int fragment_next;
-
-#define NUM_DEFAULT_KEYS 4
- struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
- struct ieee80211_key *default_key;
-
- /*
- * BSS configuration for this interface.
- *
- * FIXME: I feel bad putting this here when we already have a
- * bss pointer, but the bss pointer is just wrong when
- * you have multiple virtual STA mode interfaces...
- * This needs to be fixed.
- */
- struct ieee80211_bss_conf bss_conf;
- struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
-
- union {
- struct ieee80211_if_ap ap;
- struct ieee80211_if_wds wds;
- struct ieee80211_if_vlan vlan;
- struct ieee80211_if_sta sta;
- u32 mntr_flags;
- } u;
- int channel_use;
- int channel_use_raw;
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct dentry *debugfsdir;
- union {
- struct {
- struct dentry *channel_use;
- struct dentry *drop_unencrypted;
- struct dentry *state;
- struct dentry *bssid;
- struct dentry *prev_bssid;
- struct dentry *ssid_len;
- struct dentry *aid;
- struct dentry *ap_capab;
- struct dentry *capab;
- struct dentry *extra_ie_len;
- struct dentry *auth_tries;
- struct dentry *assoc_tries;
- struct dentry *auth_algs;
- struct dentry *auth_alg;
- struct dentry *auth_transaction;
- struct dentry *flags;
- } sta;
- struct {
- struct dentry *channel_use;
- struct dentry *drop_unencrypted;
- struct dentry *num_sta_ps;
- struct dentry *dtim_count;
- struct dentry *num_beacons;
- struct dentry *force_unicast_rateidx;
- struct dentry *max_ratectrl_rateidx;
- struct dentry *num_buffered_multicast;
- } ap;
- struct {
- struct dentry *channel_use;
- struct dentry *drop_unencrypted;
- struct dentry *peer;
- } wds;
- struct {
- struct dentry *channel_use;
- struct dentry *drop_unencrypted;
- } vlan;
- struct {
- struct dentry *mode;
- } monitor;
- struct dentry *default_key;
- } debugfs;
-#endif
- /* must be last, dynamically sized area in this! */
- struct ieee80211_vif vif;
-};
-
-static inline
-struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
-{
- return container_of(p, struct ieee80211_sub_if_data, vif);
-}
-
-#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
-
-enum {
- IEEE80211_RX_MSG = 1,
- IEEE80211_TX_STATUS_MSG = 2,
- IEEE80211_DELBA_MSG = 3,
- IEEE80211_ADDBA_MSG = 4,
-};
-
-struct ieee80211_local {
- /* embed the driver visible part.
- * don't cast (use the static inlines below), but we keep
- * it first anyway so they become a no-op */
- struct ieee80211_hw hw;
-
- const struct ieee80211_ops *ops;
-
- struct net_device *mdev; /* wmaster# - "master" 802.11 device */
- int open_count;
- int monitors, cooked_mntrs;
- /* number of interfaces with corresponding FIF_ flags */
- int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss;
- unsigned int filter_flags; /* FIF_* */
- struct iw_statistics wstats;
- u8 wstats_flags;
- int tx_headroom; /* required headroom for hardware/radiotap */
-
- enum {
- IEEE80211_DEV_UNINITIALIZED = 0,
- IEEE80211_DEV_REGISTERED,
- IEEE80211_DEV_UNREGISTERED,
- } reg_state;
-
- /* Tasklet and skb queue to process calls from IRQ mode. All frames
- * added to skb_queue will be processed, but frames in
- * skb_queue_unreliable may be dropped if the total length of these
- * queues increases over the limit. */
-#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
- struct tasklet_struct tasklet;
- struct sk_buff_head skb_queue;
- struct sk_buff_head skb_queue_unreliable;
-
- /* Station data structures */
- rwlock_t sta_lock; /* protects STA data structures */
- int num_sta; /* number of stations in sta_list */
- struct list_head sta_list;
- struct sta_info *sta_hash[STA_HASH_SIZE];
- struct timer_list sta_cleanup;
-
- unsigned long state[NUM_TX_DATA_QUEUES_AMPDU];
- struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES_AMPDU];
- struct tasklet_struct tx_pending_tasklet;
-
- /* number of interfaces with corresponding IFF_ flags */
- atomic_t iff_allmultis, iff_promiscs;
-
- struct rate_control_ref *rate_ctrl;
-
- int rts_threshold;
- int fragmentation_threshold;
- int short_retry_limit; /* dot11ShortRetryLimit */
- int long_retry_limit; /* dot11LongRetryLimit */
-
- struct crypto_blkcipher *wep_tx_tfm;
- struct crypto_blkcipher *wep_rx_tfm;
- u32 wep_iv;
-
- int bridge_packets; /* bridge packets between associated stations and
- * deliver multicast frames both back to wireless
- * media and to the local net stack */
-
- struct list_head interfaces;
-
- bool sta_sw_scanning;
- bool sta_hw_scanning;
- int scan_channel_idx;
- enum ieee80211_band scan_band;
-
- enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
- unsigned long last_scan_completed;
- struct delayed_work scan_work;
- struct net_device *scan_dev;
- struct ieee80211_channel *oper_channel, *scan_channel;
- u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
- size_t scan_ssid_len;
- struct list_head sta_bss_list;
- struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
- spinlock_t sta_bss_lock;
-
- /* SNMP counters */
- /* dot11CountersTable */
- u32 dot11TransmittedFragmentCount;
- u32 dot11MulticastTransmittedFrameCount;
- u32 dot11FailedCount;
- u32 dot11RetryCount;
- u32 dot11MultipleRetryCount;
- u32 dot11FrameDuplicateCount;
- u32 dot11ReceivedFragmentCount;
- u32 dot11MulticastReceivedFrameCount;
- u32 dot11TransmittedFrameCount;
- u32 dot11WEPUndecryptableCount;
-
-#ifdef CONFIG_MAC80211_LEDS
- int tx_led_counter, rx_led_counter;
- struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
- char tx_led_name[32], rx_led_name[32],
- assoc_led_name[32], radio_led_name[32];
-#endif
-
- u32 channel_use;
- u32 channel_use_raw;
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct work_struct sta_debugfs_add;
-#endif
-
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- /* TX/RX handler statistics */
- unsigned int tx_handlers_drop;
- unsigned int tx_handlers_queued;
- unsigned int tx_handlers_drop_unencrypted;
- unsigned int tx_handlers_drop_fragment;
- unsigned int tx_handlers_drop_wep;
- unsigned int tx_handlers_drop_not_assoc;
- unsigned int tx_handlers_drop_unauth_port;
- unsigned int rx_handlers_drop;
- unsigned int rx_handlers_queued;
- unsigned int rx_handlers_drop_nullfunc;
- unsigned int rx_handlers_drop_defrag;
- unsigned int rx_handlers_drop_short;
- unsigned int rx_handlers_drop_passive_scan;
- unsigned int tx_expand_skb_head;
- unsigned int tx_expand_skb_head_cloned;
- unsigned int rx_expand_skb_head;
- unsigned int rx_expand_skb_head2;
- unsigned int rx_handlers_fragments;
- unsigned int tx_status_drop;
- unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
- unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
-#define I802_DEBUG_INC(c) (c)++
-#else /* CONFIG_MAC80211_DEBUG_COUNTERS */
-#define I802_DEBUG_INC(c) do { } while (0)
-#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
-
-
- int total_ps_buffered; /* total number of all buffered unicast and
- * multicast packets for power saving stations
- */
- int wifi_wme_noack_test;
- unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct local_debugfsdentries {
- struct dentry *frequency;
- struct dentry *antenna_sel_tx;
- struct dentry *antenna_sel_rx;
- struct dentry *bridge_packets;
- struct dentry *rts_threshold;
- struct dentry *fragmentation_threshold;
- struct dentry *short_retry_limit;
- struct dentry *long_retry_limit;
- struct dentry *total_ps_buffered;
- struct dentry *wep_iv;
- struct dentry *statistics;
- struct local_debugfsdentries_statsdentries {
- struct dentry *transmitted_fragment_count;
- struct dentry *multicast_transmitted_frame_count;
- struct dentry *failed_count;
- struct dentry *retry_count;
- struct dentry *multiple_retry_count;
- struct dentry *frame_duplicate_count;
- struct dentry *received_fragment_count;
- struct dentry *multicast_received_frame_count;
- struct dentry *transmitted_frame_count;
- struct dentry *wep_undecryptable_count;
- struct dentry *num_scans;
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- struct dentry *tx_handlers_drop;
- struct dentry *tx_handlers_queued;
- struct dentry *tx_handlers_drop_unencrypted;
- struct dentry *tx_handlers_drop_fragment;
- struct dentry *tx_handlers_drop_wep;
- struct dentry *tx_handlers_drop_not_assoc;
- struct dentry *tx_handlers_drop_unauth_port;
- struct dentry *rx_handlers_drop;
- struct dentry *rx_handlers_queued;
- struct dentry *rx_handlers_drop_nullfunc;
- struct dentry *rx_handlers_drop_defrag;
- struct dentry *rx_handlers_drop_short;
- struct dentry *rx_handlers_drop_passive_scan;
- struct dentry *tx_expand_skb_head;
- struct dentry *tx_expand_skb_head_cloned;
- struct dentry *rx_expand_skb_head;
- struct dentry *rx_expand_skb_head2;
- struct dentry *rx_handlers_fragments;
- struct dentry *tx_status_drop;
- struct dentry *wme_tx_queue;
- struct dentry *wme_rx_queue;
-#endif
- struct dentry *dot11ACKFailureCount;
- struct dentry *dot11RTSFailureCount;
- struct dentry *dot11FCSErrorCount;
- struct dentry *dot11RTSSuccessCount;
- } stats;
- struct dentry *stations;
- struct dentry *keys;
- } debugfs;
-#endif
-};
-
-/* this struct represents 802.11n's RA/TID combination */
-struct ieee80211_ra_tid {
- u8 ra[ETH_ALEN];
- u16 tid;
-};
-
-static inline struct ieee80211_local *hw_to_local(
- struct ieee80211_hw *hw)
-{
- return container_of(hw, struct ieee80211_local, hw);
-}
-
-static inline struct ieee80211_hw *local_to_hw(
- struct ieee80211_local *local)
-{
- return &local->hw;
-}
-
-enum ieee80211_link_state_t {
- IEEE80211_LINK_STATE_XOFF = 0,
- IEEE80211_LINK_STATE_PENDING,
-};
-
-struct sta_attribute {
- struct attribute attr;
- ssize_t (*show)(const struct sta_info *, char *buf);
- ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
-};
-
-static inline void __bss_tim_set(struct ieee80211_if_ap *bss, u16 aid)
-{
- /*
- * This format has been mandated by the IEEE specifications,
- * so this line may not be changed to use the __set_bit() format.
- */
- bss->tim[aid / 8] |= (1 << (aid % 8));
-}
-
-static inline void bss_tim_set(struct ieee80211_local *local,
- struct ieee80211_if_ap *bss, u16 aid)
-{
- read_lock_bh(&local->sta_lock);
- __bss_tim_set(bss, aid);
- read_unlock_bh(&local->sta_lock);
-}
-
-static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, u16 aid)
-{
- /*
- * This format has been mandated by the IEEE specifications,
- * so this line may not be changed to use the __clear_bit() format.
- */
- bss->tim[aid / 8] &= ~(1 << (aid % 8));
-}
-
-static inline void bss_tim_clear(struct ieee80211_local *local,
- struct ieee80211_if_ap *bss, u16 aid)
-{
- read_lock_bh(&local->sta_lock);
- __bss_tim_clear(bss, aid);
- read_unlock_bh(&local->sta_lock);
-}
-
-static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
-{
- return compare_ether_addr(raddr, addr) == 0 ||
- is_broadcast_ether_addr(raddr);
-}
-
-
-/* ieee80211.c */
-int ieee80211_hw_config(struct ieee80211_local *local);
-int ieee80211_if_config(struct net_device *dev);
-int ieee80211_if_config_beacon(struct net_device *dev);
-void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
-int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
-void ieee80211_if_setup(struct net_device *dev);
-int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht,
- struct ieee80211_ht_info *req_ht_cap,
- struct ieee80211_ht_bss_info *req_bss_cap);
-
-/* ieee80211_ioctl.c */
-extern const struct iw_handler_def ieee80211_iw_handler_def;
-
-
-/* Least common multiple of the used rates (in 100 kbps). This is used to
- * calculate rate_inv values for each rate so that only integers are needed. */
-#define CHAN_UTIL_RATE_LCM 95040
-/* 1 usec is 1/8 * (95040/10) = 1188 */
-#define CHAN_UTIL_PER_USEC 1188
-/* Amount of bits to shift the result right to scale the total utilization
- * to values that will not wrap around 32-bit integers. */
-#define CHAN_UTIL_SHIFT 9
-/* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
- * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
- * raw value with about 23 should give utilization in 10th of a percentage
- * (1/1000). However, utilization is only estimated and not all intervals
- * between frames etc. are calculated. 18 seems to give numbers that are closer
- * to the real maximum. */
-#define CHAN_UTIL_PER_10MS 18
-#define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
-#define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
-
-
-/* ieee80211_ioctl.c */
-int ieee80211_set_compression(struct ieee80211_local *local,
- struct net_device *dev, struct sta_info *sta);
-int ieee80211_set_freq(struct ieee80211_local *local, int freq);
-/* ieee80211_sta.c */
-void ieee80211_sta_timer(unsigned long data);
-void ieee80211_sta_work(struct work_struct *work);
-void ieee80211_sta_scan_work(struct work_struct *work);
-void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
- struct ieee80211_rx_status *rx_status);
-int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
-int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
-int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
-int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
-void ieee80211_sta_req_auth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta);
-int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
-ieee80211_rx_result ieee80211_sta_rx_scan(
- struct net_device *dev, struct sk_buff *skb,
- struct ieee80211_rx_status *rx_status);
-void ieee80211_rx_bss_list_init(struct net_device *dev);
-void ieee80211_rx_bss_list_deinit(struct net_device *dev);
-int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
-struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
- struct sk_buff *skb, u8 *bssid,
- u8 *addr);
-int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
-int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
-void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
- u32 changed);
-void ieee80211_reset_erp_info(struct net_device *dev);
-int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
- struct ieee80211_ht_info *ht_info);
-int ieee80211_ht_addt_info_ie_to_ht_bss_info(
- struct ieee80211_ht_addt_info *ht_add_info_ie,
- struct ieee80211_ht_bss_info *bss_info);
-void ieee80211_send_addba_request(struct net_device *dev, const u8 *da,
- u16 tid, u8 dialog_token, u16 start_seq_num,
- u16 agg_size, u16 timeout);
-void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid,
- u16 initiator, u16 reason_code);
-void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *da,
- u16 tid, u16 initiator, u16 reason);
-void sta_rx_agg_session_timer_expired(unsigned long data);
-void sta_addba_resp_timer_expired(unsigned long data);
-/* ieee80211_iface.c */
-int ieee80211_if_add(struct net_device *dev, const char *name,
- struct net_device **new_dev, int type);
-void ieee80211_if_set_type(struct net_device *dev, int type);
-void ieee80211_if_reinit(struct net_device *dev);
-void __ieee80211_if_del(struct ieee80211_local *local,
- struct ieee80211_sub_if_data *sdata);
-int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
-void ieee80211_if_free(struct net_device *dev);
-void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
-
-/* tx handling */
-void ieee80211_clear_tx_pending(struct ieee80211_local *local);
-void ieee80211_tx_pending(unsigned long data);
-int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
-int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
-int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
-
-/* utility functions/constants */
-extern void *mac80211_wiphy_privid; /* for wiphy privid */
-extern const unsigned char rfc1042_header[6];
-extern const unsigned char bridge_tunnel_header[6];
-u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
- enum ieee80211_if_types type);
-int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
- int rate, int erp, int short_preamble);
-void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
- struct ieee80211_hdr *hdr);
-
-#endif /* IEEE80211_I_H */
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005-2006, Devicescape Software, Inc.
- * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/kernel.h>
-#include <linux/if_arp.h>
-#include <linux/netdevice.h>
-#include <linux/rtnetlink.h>
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-#include "sta_info.h"
-#include "debugfs_netdev.h"
-
-void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata)
-{
- int i;
-
- /* Default values for sub-interface parameters */
- sdata->drop_unencrypted = 0;
- for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++)
- skb_queue_head_init(&sdata->fragments[i].skb_list);
-
- INIT_LIST_HEAD(&sdata->key_list);
-}
-
-static void ieee80211_if_sdata_deinit(struct ieee80211_sub_if_data *sdata)
-{
- int i;
-
- for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) {
- __skb_queue_purge(&sdata->fragments[i].skb_list);
- }
-}
-
-/* Must be called with rtnl lock held. */
-int ieee80211_if_add(struct net_device *dev, const char *name,
- struct net_device **new_dev, int type)
-{
- struct net_device *ndev;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = NULL;
- int ret;
-
- ASSERT_RTNL();
- ndev = alloc_netdev(sizeof(*sdata) + local->hw.vif_data_size,
- name, ieee80211_if_setup);
- if (!ndev)
- return -ENOMEM;
-
- ret = dev_alloc_name(ndev, ndev->name);
- if (ret < 0)
- goto fail;
-
- memcpy(ndev->dev_addr, local->hw.wiphy->perm_addr, ETH_ALEN);
- ndev->base_addr = dev->base_addr;
- ndev->irq = dev->irq;
- ndev->mem_start = dev->mem_start;
- ndev->mem_end = dev->mem_end;
- SET_NETDEV_DEV(ndev, wiphy_dev(local->hw.wiphy));
-
- sdata = IEEE80211_DEV_TO_SUB_IF(ndev);
- ndev->ieee80211_ptr = &sdata->wdev;
- sdata->wdev.wiphy = local->hw.wiphy;
- sdata->vif.type = IEEE80211_IF_TYPE_AP;
- sdata->dev = ndev;
- sdata->local = local;
- ieee80211_if_sdata_init(sdata);
-
- ret = register_netdevice(ndev);
- if (ret)
- goto fail;
-
- ieee80211_debugfs_add_netdev(sdata);
- ieee80211_if_set_type(ndev, type);
-
- /* we're under RTNL so all this is fine */
- if (unlikely(local->reg_state == IEEE80211_DEV_UNREGISTERED)) {
- __ieee80211_if_del(local, sdata);
- return -ENODEV;
- }
- list_add_tail_rcu(&sdata->list, &local->interfaces);
-
- if (new_dev)
- *new_dev = ndev;
-
- return 0;
-
-fail:
- free_netdev(ndev);
- return ret;
-}
-
-void ieee80211_if_set_type(struct net_device *dev, int type)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- int oldtype = sdata->vif.type;
-
- /*
- * We need to call this function on the master interface
- * which already has a hard_start_xmit routine assigned
- * which must not be changed.
- */
- if (dev != sdata->local->mdev)
- dev->hard_start_xmit = ieee80211_subif_start_xmit;
-
- /*
- * Called even when register_netdevice fails, it would
- * oops if assigned before initialising the rest.
- */
- dev->uninit = ieee80211_if_reinit;
-
- /* most have no BSS pointer */
- sdata->bss = NULL;
- sdata->vif.type = type;
-
- sdata->basic_rates = 0;
-
- switch (type) {
- case IEEE80211_IF_TYPE_WDS:
- /* nothing special */
- break;
- case IEEE80211_IF_TYPE_VLAN:
- sdata->u.vlan.ap = NULL;
- break;
- case IEEE80211_IF_TYPE_AP:
- sdata->u.ap.force_unicast_rateidx = -1;
- sdata->u.ap.max_ratectrl_rateidx = -1;
- skb_queue_head_init(&sdata->u.ap.ps_bc_buf);
- sdata->bss = &sdata->u.ap;
- INIT_LIST_HEAD(&sdata->u.ap.vlans);
- break;
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS: {
- struct ieee80211_sub_if_data *msdata;
- struct ieee80211_if_sta *ifsta;
-
- ifsta = &sdata->u.sta;
- INIT_WORK(&ifsta->work, ieee80211_sta_work);
- setup_timer(&ifsta->timer, ieee80211_sta_timer,
- (unsigned long) sdata);
- skb_queue_head_init(&ifsta->skb_queue);
-
- ifsta->capab = WLAN_CAPABILITY_ESS;
- ifsta->auth_algs = IEEE80211_AUTH_ALG_OPEN |
- IEEE80211_AUTH_ALG_SHARED_KEY;
- ifsta->flags |= IEEE80211_STA_CREATE_IBSS |
- IEEE80211_STA_WMM_ENABLED |
- IEEE80211_STA_AUTO_BSSID_SEL |
- IEEE80211_STA_AUTO_CHANNEL_SEL;
-
- msdata = IEEE80211_DEV_TO_SUB_IF(sdata->local->mdev);
- sdata->bss = &msdata->u.ap;
- break;
- }
- case IEEE80211_IF_TYPE_MNTR:
- dev->type = ARPHRD_IEEE80211_RADIOTAP;
- dev->hard_start_xmit = ieee80211_monitor_start_xmit;
- sdata->u.mntr_flags = MONITOR_FLAG_CONTROL |
- MONITOR_FLAG_OTHER_BSS;
- break;
- default:
- printk(KERN_WARNING "%s: %s: Unknown interface type 0x%x",
- dev->name, __FUNCTION__, type);
- }
- ieee80211_debugfs_change_if_type(sdata, oldtype);
-}
-
-/* Must be called with rtnl lock held. */
-void ieee80211_if_reinit(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct sta_info *sta;
- struct sk_buff *skb;
-
- ASSERT_RTNL();
-
- ieee80211_free_keys(sdata);
-
- ieee80211_if_sdata_deinit(sdata);
-
- switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_INVALID:
- /* cannot happen */
- WARN_ON(1);
- break;
- case IEEE80211_IF_TYPE_AP: {
- /* Remove all virtual interfaces that use this BSS
- * as their sdata->bss */
- struct ieee80211_sub_if_data *tsdata, *n;
-
- list_for_each_entry_safe(tsdata, n, &local->interfaces, list) {
- if (tsdata != sdata && tsdata->bss == &sdata->u.ap) {
- printk(KERN_DEBUG "%s: removing virtual "
- "interface %s because its BSS interface"
- " is being removed\n",
- sdata->dev->name, tsdata->dev->name);
- list_del_rcu(&tsdata->list);
- /*
- * We have lots of time and can afford
- * to sync for each interface
- */
- synchronize_rcu();
- __ieee80211_if_del(local, tsdata);
- }
- }
-
- kfree(sdata->u.ap.beacon);
-
- while ((skb = skb_dequeue(&sdata->u.ap.ps_bc_buf))) {
- local->total_ps_buffered--;
- dev_kfree_skb(skb);
- }
-
- break;
- }
- case IEEE80211_IF_TYPE_WDS:
- sta = sta_info_get(local, sdata->u.wds.remote_addr);
- if (sta) {
- sta_info_free(sta);
- sta_info_put(sta);
- } else {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: Someone had deleted my STA "
- "entry for the WDS link\n", dev->name);
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- }
- break;
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- kfree(sdata->u.sta.extra_ie);
- sdata->u.sta.extra_ie = NULL;
- kfree(sdata->u.sta.assocreq_ies);
- sdata->u.sta.assocreq_ies = NULL;
- kfree(sdata->u.sta.assocresp_ies);
- sdata->u.sta.assocresp_ies = NULL;
- if (sdata->u.sta.probe_resp) {
- dev_kfree_skb(sdata->u.sta.probe_resp);
- sdata->u.sta.probe_resp = NULL;
- }
-
- break;
- case IEEE80211_IF_TYPE_MNTR:
- dev->type = ARPHRD_ETHER;
- break;
- case IEEE80211_IF_TYPE_VLAN:
- sdata->u.vlan.ap = NULL;
- break;
- }
-
- /* remove all STAs that are bound to this virtual interface */
- sta_info_flush(local, dev);
-
- memset(&sdata->u, 0, sizeof(sdata->u));
- ieee80211_if_sdata_init(sdata);
-}
-
-/* Must be called with rtnl lock held. */
-void __ieee80211_if_del(struct ieee80211_local *local,
- struct ieee80211_sub_if_data *sdata)
-{
- struct net_device *dev = sdata->dev;
-
- ieee80211_debugfs_remove_netdev(sdata);
- unregister_netdevice(dev);
- /* Except master interface, the net_device will be freed by
- * net_device->destructor (i. e. ieee80211_if_free). */
-}
-
-/* Must be called with rtnl lock held. */
-int ieee80211_if_remove(struct net_device *dev, const char *name, int id)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata, *n;
-
- ASSERT_RTNL();
-
- list_for_each_entry_safe(sdata, n, &local->interfaces, list) {
- if ((sdata->vif.type == id || id == -1) &&
- strcmp(name, sdata->dev->name) == 0 &&
- sdata->dev != local->mdev) {
- list_del_rcu(&sdata->list);
- synchronize_rcu();
- __ieee80211_if_del(local, sdata);
- return 0;
- }
- }
- return -ENODEV;
-}
-
-void ieee80211_if_free(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- ieee80211_if_sdata_deinit(sdata);
- free_netdev(dev);
-}
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005-2006, Devicescape Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-#include <linux/etherdevice.h>
-#include <linux/if_arp.h>
-#include <linux/wireless.h>
-#include <net/iw_handler.h>
-#include <asm/uaccess.h>
-
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-#include "ieee80211_led.h"
-#include "ieee80211_rate.h"
-#include "wpa.h"
-#include "aes_ccm.h"
-
-
-static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
- int idx, int alg, int remove,
- int set_tx_key, const u8 *_key,
- size_t key_len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- int ret = 0;
- struct sta_info *sta;
- struct ieee80211_key *key;
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (idx < 0 || idx >= NUM_DEFAULT_KEYS) {
- printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n",
- dev->name, idx);
- return -EINVAL;
- }
-
- if (is_broadcast_ether_addr(sta_addr)) {
- sta = NULL;
- key = sdata->keys[idx];
- } else {
- set_tx_key = 0;
- /*
- * According to the standard, the key index of a pairwise
- * key must be zero. However, some AP are broken when it
- * comes to WEP key indices, so we work around this.
- */
- if (idx != 0 && alg != ALG_WEP) {
- printk(KERN_DEBUG "%s: set_encrypt - non-zero idx for "
- "individual key\n", dev->name);
- return -EINVAL;
- }
-
- sta = sta_info_get(local, sta_addr);
- if (!sta) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- DECLARE_MAC_BUF(mac);
- printk(KERN_DEBUG "%s: set_encrypt - unknown addr "
- "%s\n",
- dev->name, print_mac(mac, sta_addr));
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
-
- return -ENOENT;
- }
-
- key = sta->key;
- }
-
- if (remove) {
- ieee80211_key_free(key);
- key = NULL;
- } else {
- /*
- * Automatically frees any old key if present.
- */
- key = ieee80211_key_alloc(sdata, sta, alg, idx, key_len, _key);
- if (!key) {
- ret = -ENOMEM;
- goto err_out;
- }
- }
-
- if (set_tx_key || (!sta && !sdata->default_key && key))
- ieee80211_set_default_key(sdata, idx);
-
- ret = 0;
- err_out:
- if (sta)
- sta_info_put(sta);
- return ret;
-}
-
-static int ieee80211_ioctl_siwgenie(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)
- return -EOPNOTSUPP;
-
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
- int ret = ieee80211_sta_set_extra_ie(dev, extra, data->length);
- if (ret)
- return ret;
- sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
- ieee80211_sta_req_auth(dev, &sdata->u.sta);
- return 0;
- }
-
- return -EOPNOTSUPP;
-}
-
-static int ieee80211_ioctl_giwname(struct net_device *dev,
- struct iw_request_info *info,
- char *name, char *extra)
-{
- strcpy(name, "IEEE 802.11");
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_giwrange(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct iw_range *range = (struct iw_range *) extra;
- enum ieee80211_band band;
- int c = 0;
-
- data->length = sizeof(struct iw_range);
- memset(range, 0, sizeof(struct iw_range));
-
- range->we_version_compiled = WIRELESS_EXT;
- range->we_version_source = 21;
- range->retry_capa = IW_RETRY_LIMIT;
- range->retry_flags = IW_RETRY_LIMIT;
- range->min_retry = 0;
- range->max_retry = 255;
- range->min_rts = 0;
- range->max_rts = 2347;
- range->min_frag = 256;
- range->max_frag = 2346;
-
- range->encoding_size[0] = 5;
- range->encoding_size[1] = 13;
- range->num_encoding_sizes = 2;
- range->max_encoding_tokens = NUM_DEFAULT_KEYS;
-
- range->max_qual.qual = local->hw.max_signal;
- range->max_qual.level = local->hw.max_rssi;
- range->max_qual.noise = local->hw.max_noise;
- range->max_qual.updated = local->wstats_flags;
-
- range->avg_qual.qual = local->hw.max_signal/2;
- range->avg_qual.level = 0;
- range->avg_qual.noise = 0;
- range->avg_qual.updated = local->wstats_flags;
-
- range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
- IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
-
-
- for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
- int i;
- struct ieee80211_supported_band *sband;
-
- sband = local->hw.wiphy->bands[band];
-
- if (!sband)
- continue;
-
- for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
- struct ieee80211_channel *chan = &sband->channels[i];
-
- if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
- range->freq[c].i =
- ieee80211_frequency_to_channel(
- chan->center_freq);
- range->freq[c].m = chan->center_freq;
- range->freq[c].e = 6;
- c++;
- }
- }
- }
- range->num_channels = c;
- range->num_frequency = c;
-
- IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
- IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
- IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
- IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
-
- range->scan_capa |= IW_SCAN_CAPA_ESSID;
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_siwmode(struct net_device *dev,
- struct iw_request_info *info,
- __u32 *mode, char *extra)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- int type;
-
- if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
- return -EOPNOTSUPP;
-
- switch (*mode) {
- case IW_MODE_INFRA:
- type = IEEE80211_IF_TYPE_STA;
- break;
- case IW_MODE_ADHOC:
- type = IEEE80211_IF_TYPE_IBSS;
- break;
- case IW_MODE_MONITOR:
- type = IEEE80211_IF_TYPE_MNTR;
- break;
- default:
- return -EINVAL;
- }
-
- if (type == sdata->vif.type)
- return 0;
- if (netif_running(dev))
- return -EBUSY;
-
- ieee80211_if_reinit(dev);
- ieee80211_if_set_type(dev, type);
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_giwmode(struct net_device *dev,
- struct iw_request_info *info,
- __u32 *mode, char *extra)
-{
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_AP:
- *mode = IW_MODE_MASTER;
- break;
- case IEEE80211_IF_TYPE_STA:
- *mode = IW_MODE_INFRA;
- break;
- case IEEE80211_IF_TYPE_IBSS:
- *mode = IW_MODE_ADHOC;
- break;
- case IEEE80211_IF_TYPE_MNTR:
- *mode = IW_MODE_MONITOR;
- break;
- case IEEE80211_IF_TYPE_WDS:
- *mode = IW_MODE_REPEAT;
- break;
- case IEEE80211_IF_TYPE_VLAN:
- *mode = IW_MODE_SECOND; /* FIXME */
- break;
- default:
- *mode = IW_MODE_AUTO;
- break;
- }
- return 0;
-}
-
-int ieee80211_set_freq(struct ieee80211_local *local, int freqMHz)
-{
- int set = 0;
- int ret = -EINVAL;
- enum ieee80211_band band;
- struct ieee80211_supported_band *sband;
- int i;
-
- for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
- sband = local->hw.wiphy->bands[band];
-
- if (!sband)
- continue;
-
- for (i = 0; i < sband->n_channels; i++) {
- struct ieee80211_channel *chan = &sband->channels[i];
-
- if (chan->flags & IEEE80211_CHAN_DISABLED)
- continue;
-
- if (chan->center_freq == freqMHz) {
- set = 1;
- local->oper_channel = chan;
- break;
- }
- }
- if (set)
- break;
- }
-
- if (set) {
- if (local->sta_sw_scanning)
- ret = 0;
- else
- ret = ieee80211_hw_config(local);
-
- rate_control_clear(local);
- }
-
- return ret;
-}
-
-static int ieee80211_ioctl_siwfreq(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_freq *freq, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
- sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
-
- /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
- if (freq->e == 0) {
- if (freq->m < 0) {
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
- sdata->u.sta.flags |=
- IEEE80211_STA_AUTO_CHANNEL_SEL;
- return 0;
- } else
- return ieee80211_set_freq(local,
- ieee80211_channel_to_frequency(freq->m));
- } else {
- int i, div = 1000000;
- for (i = 0; i < freq->e; i++)
- div /= 10;
- if (div > 0)
- return ieee80211_set_freq(local, freq->m / div);
- else
- return -EINVAL;
- }
-}
-
-
-static int ieee80211_ioctl_giwfreq(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_freq *freq, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- freq->m = local->hw.conf.channel->center_freq;
- freq->e = 6;
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_siwessid(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *data, char *ssid)
-{
- struct ieee80211_sub_if_data *sdata;
- size_t len = data->length;
-
- /* iwconfig uses nul termination in SSID.. */
- if (len > 0 && ssid[len - 1] == '\0')
- len--;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
- int ret;
- if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
- if (len > IEEE80211_MAX_SSID_LEN)
- return -EINVAL;
- memcpy(sdata->u.sta.ssid, ssid, len);
- sdata->u.sta.ssid_len = len;
- return 0;
- }
- if (data->flags)
- sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
- else
- sdata->u.sta.flags |= IEEE80211_STA_AUTO_SSID_SEL;
- ret = ieee80211_sta_set_ssid(dev, ssid, len);
- if (ret)
- return ret;
- ieee80211_sta_req_auth(dev, &sdata->u.sta);
- return 0;
- }
-
- if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
- memcpy(sdata->u.ap.ssid, ssid, len);
- memset(sdata->u.ap.ssid + len, 0,
- IEEE80211_MAX_SSID_LEN - len);
- sdata->u.ap.ssid_len = len;
- return ieee80211_if_config(dev);
- }
- return -EOPNOTSUPP;
-}
-
-
-static int ieee80211_ioctl_giwessid(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *data, char *ssid)
-{
- size_t len;
-
- struct ieee80211_sub_if_data *sdata;
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
- int res = ieee80211_sta_get_ssid(dev, ssid, &len);
- if (res == 0) {
- data->length = len;
- data->flags = 1;
- } else
- data->flags = 0;
- return res;
- }
-
- if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
- len = sdata->u.ap.ssid_len;
- if (len > IW_ESSID_MAX_SIZE)
- len = IW_ESSID_MAX_SIZE;
- memcpy(ssid, sdata->u.ap.ssid, len);
- data->length = len;
- data->flags = 1;
- return 0;
- }
- return -EOPNOTSUPP;
-}
-
-
-static int ieee80211_ioctl_siwap(struct net_device *dev,
- struct iw_request_info *info,
- struct sockaddr *ap_addr, char *extra)
-{
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
- int ret;
- if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
- memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
- ETH_ALEN);
- return 0;
- }
- if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
- sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL |
- IEEE80211_STA_AUTO_CHANNEL_SEL;
- else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
- sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL;
- else
- sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
- ret = ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data);
- if (ret)
- return ret;
- ieee80211_sta_req_auth(dev, &sdata->u.sta);
- return 0;
- } else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) {
- if (memcmp(sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
- ETH_ALEN) == 0)
- return 0;
- return ieee80211_if_update_wds(dev, (u8 *) &ap_addr->sa_data);
- }
-
- return -EOPNOTSUPP;
-}
-
-
-static int ieee80211_ioctl_giwap(struct net_device *dev,
- struct iw_request_info *info,
- struct sockaddr *ap_addr, char *extra)
-{
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
- ap_addr->sa_family = ARPHRD_ETHER;
- memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
- return 0;
- } else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) {
- ap_addr->sa_family = ARPHRD_ETHER;
- memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
- return 0;
- }
-
- return -EOPNOTSUPP;
-}
-
-
-static int ieee80211_ioctl_siwscan(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *wrqu, char *extra)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct iw_scan_req *req = NULL;
- u8 *ssid = NULL;
- size_t ssid_len = 0;
-
- if (!netif_running(dev))
- return -ENETDOWN;
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
- sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
- sdata->vif.type != IEEE80211_IF_TYPE_AP)
- return -EOPNOTSUPP;
-
- /* if SSID was specified explicitly then use that */
- if (wrqu->data.length == sizeof(struct iw_scan_req) &&
- wrqu->data.flags & IW_SCAN_THIS_ESSID) {
- req = (struct iw_scan_req *)extra;
- ssid = req->essid;
- ssid_len = req->essid_len;
- }
-
- return ieee80211_sta_req_scan(dev, ssid, ssid_len);
-}
-
-
-static int ieee80211_ioctl_giwscan(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- int res;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- if (local->sta_sw_scanning || local->sta_hw_scanning)
- return -EAGAIN;
-
- res = ieee80211_sta_scan_results(dev, extra, data->length);
- if (res >= 0) {
- data->length = res;
- return 0;
- }
- data->length = 0;
- return res;
-}
-
-
-static int ieee80211_ioctl_siwrate(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *rate, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- int i, err = -EINVAL;
- u32 target_rate = rate->value / 100000;
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_supported_band *sband;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (!sdata->bss)
- return -ENODEV;
-
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
- /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
- * target_rate = X, rate->fixed = 1 means only rate X
- * target_rate = X, rate->fixed = 0 means all rates <= X */
- sdata->bss->max_ratectrl_rateidx = -1;
- sdata->bss->force_unicast_rateidx = -1;
- if (rate->value < 0)
- return 0;
-
- for (i=0; i< sband->n_bitrates; i++) {
- struct ieee80211_rate *brate = &sband->bitrates[i];
- int this_rate = brate->bitrate;
-
- if (target_rate == this_rate) {
- sdata->bss->max_ratectrl_rateidx = i;
- if (rate->fixed)
- sdata->bss->force_unicast_rateidx = i;
- err = 0;
- break;
- }
- }
- return err;
-}
-
-static int ieee80211_ioctl_giwrate(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *rate, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_supported_band *sband;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
- sta = sta_info_get(local, sdata->u.sta.bssid);
- else
- return -EOPNOTSUPP;
- if (!sta)
- return -ENODEV;
-
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
- if (sta->txrate_idx < sband->n_bitrates)
- rate->value = sband->bitrates[sta->txrate_idx].bitrate;
- else
- rate->value = 0;
- rate->value *= 100000;
- sta_info_put(sta);
- return 0;
-}
-
-static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *data, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- bool need_reconfig = 0;
- int new_power_level;
-
- if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
- return -EINVAL;
- if (data->txpower.flags & IW_TXPOW_RANGE)
- return -EINVAL;
-
- if (data->txpower.fixed) {
- new_power_level = data->txpower.value;
- } else {
- /*
- * Automatic power level. Use maximum power for the current
- * channel. Should be part of rate control.
- */
- struct ieee80211_channel* chan = local->hw.conf.channel;
- if (!chan)
- return -EINVAL;
-
- new_power_level = chan->max_power;
- }
-
- if (local->hw.conf.power_level != new_power_level) {
- local->hw.conf.power_level = new_power_level;
- need_reconfig = 1;
- }
-
- if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
- local->hw.conf.radio_enabled = !(data->txpower.disabled);
- need_reconfig = 1;
- ieee80211_led_radio(local, local->hw.conf.radio_enabled);
- }
-
- if (need_reconfig) {
- ieee80211_hw_config(local);
- /* The return value of hw_config is not of big interest here,
- * as it doesn't say that it failed because of _this_ config
- * change or something else. Ignore it. */
- }
-
- return 0;
-}
-
-static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
- struct iw_request_info *info,
- union iwreq_data *data, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- data->txpower.fixed = 1;
- data->txpower.disabled = !(local->hw.conf.radio_enabled);
- data->txpower.value = local->hw.conf.power_level;
- data->txpower.flags = IW_TXPOW_DBM;
-
- return 0;
-}
-
-static int ieee80211_ioctl_siwrts(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *rts, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- if (rts->disabled)
- local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
- else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
- return -EINVAL;
- else
- local->rts_threshold = rts->value;
-
- /* If the wlan card performs RTS/CTS in hardware/firmware,
- * configure it here */
-
- if (local->ops->set_rts_threshold)
- local->ops->set_rts_threshold(local_to_hw(local),
- local->rts_threshold);
-
- return 0;
-}
-
-static int ieee80211_ioctl_giwrts(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *rts, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- rts->value = local->rts_threshold;
- rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
- rts->fixed = 1;
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_siwfrag(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *frag, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- if (frag->disabled)
- local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
- else if (frag->value < 256 ||
- frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
- return -EINVAL;
- else {
- /* Fragment length must be even, so strip LSB. */
- local->fragmentation_threshold = frag->value & ~0x1;
- }
-
- /* If the wlan card performs fragmentation in hardware/firmware,
- * configure it here */
-
- if (local->ops->set_frag_threshold)
- local->ops->set_frag_threshold(
- local_to_hw(local),
- local->fragmentation_threshold);
-
- return 0;
-}
-
-static int ieee80211_ioctl_giwfrag(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *frag, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- frag->value = local->fragmentation_threshold;
- frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD);
- frag->fixed = 1;
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_siwretry(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *retry, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- if (retry->disabled ||
- (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
- return -EINVAL;
-
- if (retry->flags & IW_RETRY_MAX)
- local->long_retry_limit = retry->value;
- else if (retry->flags & IW_RETRY_MIN)
- local->short_retry_limit = retry->value;
- else {
- local->long_retry_limit = retry->value;
- local->short_retry_limit = retry->value;
- }
-
- if (local->ops->set_retry_limit) {
- return local->ops->set_retry_limit(
- local_to_hw(local),
- local->short_retry_limit,
- local->long_retry_limit);
- }
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_giwretry(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *retry, char *extra)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- retry->disabled = 0;
- if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
- /* first return min value, iwconfig will ask max value
- * later if needed */
- retry->flags |= IW_RETRY_LIMIT;
- retry->value = local->short_retry_limit;
- if (local->long_retry_limit != local->short_retry_limit)
- retry->flags |= IW_RETRY_MIN;
- return 0;
- }
- if (retry->flags & IW_RETRY_MAX) {
- retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
- retry->value = local->long_retry_limit;
- }
-
- return 0;
-}
-
-static int ieee80211_ioctl_siwmlme(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- struct ieee80211_sub_if_data *sdata;
- struct iw_mlme *mlme = (struct iw_mlme *) extra;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
- sdata->vif.type != IEEE80211_IF_TYPE_IBSS)
- return -EINVAL;
-
- switch (mlme->cmd) {
- case IW_MLME_DEAUTH:
- /* TODO: mlme->addr.sa_data */
- return ieee80211_sta_deauthenticate(dev, mlme->reason_code);
- case IW_MLME_DISASSOC:
- /* TODO: mlme->addr.sa_data */
- return ieee80211_sta_disassociate(dev, mlme->reason_code);
- default:
- return -EOPNOTSUPP;
- }
-}
-
-
-static int ieee80211_ioctl_siwencode(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *erq, char *keybuf)
-{
- struct ieee80211_sub_if_data *sdata;
- int idx, i, alg = ALG_WEP;
- u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
- int remove = 0;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- idx = erq->flags & IW_ENCODE_INDEX;
- if (idx == 0) {
- if (sdata->default_key)
- for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
- if (sdata->default_key == sdata->keys[i]) {
- idx = i;
- break;
- }
- }
- } else if (idx < 1 || idx > 4)
- return -EINVAL;
- else
- idx--;
-
- if (erq->flags & IW_ENCODE_DISABLED)
- remove = 1;
- else if (erq->length == 0) {
- /* No key data - just set the default TX key index */
- ieee80211_set_default_key(sdata, idx);
- return 0;
- }
-
- return ieee80211_set_encryption(
- dev, bcaddr,
- idx, alg, remove,
- !sdata->default_key,
- keybuf, erq->length);
-}
-
-
-static int ieee80211_ioctl_giwencode(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *erq, char *key)
-{
- struct ieee80211_sub_if_data *sdata;
- int idx, i;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- idx = erq->flags & IW_ENCODE_INDEX;
- if (idx < 1 || idx > 4) {
- idx = -1;
- if (!sdata->default_key)
- idx = 0;
- else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
- if (sdata->default_key == sdata->keys[i]) {
- idx = i;
- break;
- }
- }
- if (idx < 0)
- return -EINVAL;
- } else
- idx--;
-
- erq->flags = idx + 1;
-
- if (!sdata->keys[idx]) {
- erq->length = 0;
- erq->flags |= IW_ENCODE_DISABLED;
- return 0;
- }
-
- memcpy(key, sdata->keys[idx]->conf.key,
- min_t(int, erq->length, sdata->keys[idx]->conf.keylen));
- erq->length = sdata->keys[idx]->conf.keylen;
- erq->flags |= IW_ENCODE_ENABLED;
-
- return 0;
-}
-
-static int ieee80211_ioctl_siwauth(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *data, char *extra)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- int ret = 0;
-
- switch (data->flags & IW_AUTH_INDEX) {
- case IW_AUTH_WPA_VERSION:
- case IW_AUTH_CIPHER_PAIRWISE:
- case IW_AUTH_CIPHER_GROUP:
- case IW_AUTH_WPA_ENABLED:
- case IW_AUTH_RX_UNENCRYPTED_EAPOL:
- case IW_AUTH_KEY_MGMT:
- break;
- case IW_AUTH_DROP_UNENCRYPTED:
- sdata->drop_unencrypted = !!data->value;
- break;
- case IW_AUTH_PRIVACY_INVOKED:
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
- ret = -EINVAL;
- else {
- sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
- /*
- * Privacy invoked by wpa_supplicant, store the
- * value and allow associating to a protected
- * network without having a key up front.
- */
- if (data->value)
- sdata->u.sta.flags |=
- IEEE80211_STA_PRIVACY_INVOKED;
- }
- break;
- case IW_AUTH_80211_AUTH_ALG:
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
- sdata->u.sta.auth_algs = data->value;
- else
- ret = -EOPNOTSUPP;
- break;
- default:
- ret = -EOPNOTSUPP;
- break;
- }
- return ret;
-}
-
-/* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
-static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct iw_statistics *wstats = &local->wstats;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct sta_info *sta = NULL;
-
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
- sta = sta_info_get(local, sdata->u.sta.bssid);
- if (!sta) {
- wstats->discard.fragment = 0;
- wstats->discard.misc = 0;
- wstats->qual.qual = 0;
- wstats->qual.level = 0;
- wstats->qual.noise = 0;
- wstats->qual.updated = IW_QUAL_ALL_INVALID;
- } else {
- wstats->qual.level = sta->last_rssi;
- wstats->qual.qual = sta->last_signal;
- wstats->qual.noise = sta->last_noise;
- wstats->qual.updated = local->wstats_flags;
- sta_info_put(sta);
- }
- return wstats;
-}
-
-static int ieee80211_ioctl_giwauth(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *data, char *extra)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- int ret = 0;
-
- switch (data->flags & IW_AUTH_INDEX) {
- case IW_AUTH_80211_AUTH_ALG:
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
- data->value = sdata->u.sta.auth_algs;
- else
- ret = -EOPNOTSUPP;
- break;
- default:
- ret = -EOPNOTSUPP;
- break;
- }
- return ret;
-}
-
-
-static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *erq, char *extra)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
- int uninitialized_var(alg), idx, i, remove = 0;
-
- switch (ext->alg) {
- case IW_ENCODE_ALG_NONE:
- remove = 1;
- break;
- case IW_ENCODE_ALG_WEP:
- alg = ALG_WEP;
- break;
- case IW_ENCODE_ALG_TKIP:
- alg = ALG_TKIP;
- break;
- case IW_ENCODE_ALG_CCMP:
- alg = ALG_CCMP;
- break;
- default:
- return -EOPNOTSUPP;
- }
-
- if (erq->flags & IW_ENCODE_DISABLED)
- remove = 1;
-
- idx = erq->flags & IW_ENCODE_INDEX;
- if (idx < 1 || idx > 4) {
- idx = -1;
- if (!sdata->default_key)
- idx = 0;
- else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
- if (sdata->default_key == sdata->keys[i]) {
- idx = i;
- break;
- }
- }
- if (idx < 0)
- return -EINVAL;
- } else
- idx--;
-
- return ieee80211_set_encryption(dev, ext->addr.sa_data, idx, alg,
- remove,
- ext->ext_flags &
- IW_ENCODE_EXT_SET_TX_KEY,
- ext->key, ext->key_len);
-}
-
-
-/* Structures to export the Wireless Handlers */
-
-static const iw_handler ieee80211_handler[] =
-{
- (iw_handler) NULL, /* SIOCSIWCOMMIT */
- (iw_handler) ieee80211_ioctl_giwname, /* SIOCGIWNAME */
- (iw_handler) NULL, /* SIOCSIWNWID */
- (iw_handler) NULL, /* SIOCGIWNWID */
- (iw_handler) ieee80211_ioctl_siwfreq, /* SIOCSIWFREQ */
- (iw_handler) ieee80211_ioctl_giwfreq, /* SIOCGIWFREQ */
- (iw_handler) ieee80211_ioctl_siwmode, /* SIOCSIWMODE */
- (iw_handler) ieee80211_ioctl_giwmode, /* SIOCGIWMODE */
- (iw_handler) NULL, /* SIOCSIWSENS */
- (iw_handler) NULL, /* SIOCGIWSENS */
- (iw_handler) NULL /* not used */, /* SIOCSIWRANGE */
- (iw_handler) ieee80211_ioctl_giwrange, /* SIOCGIWRANGE */
- (iw_handler) NULL /* not used */, /* SIOCSIWPRIV */
- (iw_handler) NULL /* kernel code */, /* SIOCGIWPRIV */
- (iw_handler) NULL /* not used */, /* SIOCSIWSTATS */
- (iw_handler) NULL /* kernel code */, /* SIOCGIWSTATS */
- (iw_handler) NULL, /* SIOCSIWSPY */
- (iw_handler) NULL, /* SIOCGIWSPY */
- (iw_handler) NULL, /* SIOCSIWTHRSPY */
- (iw_handler) NULL, /* SIOCGIWTHRSPY */
- (iw_handler) ieee80211_ioctl_siwap, /* SIOCSIWAP */
- (iw_handler) ieee80211_ioctl_giwap, /* SIOCGIWAP */
- (iw_handler) ieee80211_ioctl_siwmlme, /* SIOCSIWMLME */
- (iw_handler) NULL, /* SIOCGIWAPLIST */
- (iw_handler) ieee80211_ioctl_siwscan, /* SIOCSIWSCAN */
- (iw_handler) ieee80211_ioctl_giwscan, /* SIOCGIWSCAN */
- (iw_handler) ieee80211_ioctl_siwessid, /* SIOCSIWESSID */
- (iw_handler) ieee80211_ioctl_giwessid, /* SIOCGIWESSID */
- (iw_handler) NULL, /* SIOCSIWNICKN */
- (iw_handler) NULL, /* SIOCGIWNICKN */
- (iw_handler) NULL, /* -- hole -- */
- (iw_handler) NULL, /* -- hole -- */
- (iw_handler) ieee80211_ioctl_siwrate, /* SIOCSIWRATE */
- (iw_handler) ieee80211_ioctl_giwrate, /* SIOCGIWRATE */
- (iw_handler) ieee80211_ioctl_siwrts, /* SIOCSIWRTS */
- (iw_handler) ieee80211_ioctl_giwrts, /* SIOCGIWRTS */
- (iw_handler) ieee80211_ioctl_siwfrag, /* SIOCSIWFRAG */
- (iw_handler) ieee80211_ioctl_giwfrag, /* SIOCGIWFRAG */
- (iw_handler) ieee80211_ioctl_siwtxpower, /* SIOCSIWTXPOW */
- (iw_handler) ieee80211_ioctl_giwtxpower, /* SIOCGIWTXPOW */
- (iw_handler) ieee80211_ioctl_siwretry, /* SIOCSIWRETRY */
- (iw_handler) ieee80211_ioctl_giwretry, /* SIOCGIWRETRY */
- (iw_handler) ieee80211_ioctl_siwencode, /* SIOCSIWENCODE */
- (iw_handler) ieee80211_ioctl_giwencode, /* SIOCGIWENCODE */
- (iw_handler) NULL, /* SIOCSIWPOWER */
- (iw_handler) NULL, /* SIOCGIWPOWER */
- (iw_handler) NULL, /* -- hole -- */
- (iw_handler) NULL, /* -- hole -- */
- (iw_handler) ieee80211_ioctl_siwgenie, /* SIOCSIWGENIE */
- (iw_handler) NULL, /* SIOCGIWGENIE */
- (iw_handler) ieee80211_ioctl_siwauth, /* SIOCSIWAUTH */
- (iw_handler) ieee80211_ioctl_giwauth, /* SIOCGIWAUTH */
- (iw_handler) ieee80211_ioctl_siwencodeext, /* SIOCSIWENCODEEXT */
- (iw_handler) NULL, /* SIOCGIWENCODEEXT */
- (iw_handler) NULL, /* SIOCSIWPMKSA */
- (iw_handler) NULL, /* -- hole -- */
-};
-
-const struct iw_handler_def ieee80211_iw_handler_def =
-{
- .num_standard = ARRAY_SIZE(ieee80211_handler),
- .standard = (iw_handler *) ieee80211_handler,
- .get_wireless_stats = ieee80211_get_wireless_stats,
-};
+++ /dev/null
-/*
- * Copyright 2002-2004, Instant802 Networks, Inc.
- * Copyright 2005, Devicescape Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef IEEE80211_KEY_H
-#define IEEE80211_KEY_H
-
-#include <linux/types.h>
-#include <linux/list.h>
-#include <linux/crypto.h>
-#include <net/mac80211.h>
-
-/* ALG_TKIP
- * struct ieee80211_key::key is encoded as a 256-bit (32 byte) data block:
- * Temporal Encryption Key (128 bits)
- * Temporal Authenticator Tx MIC Key (64 bits)
- * Temporal Authenticator Rx MIC Key (64 bits)
- */
-
-#define WEP_IV_LEN 4
-#define WEP_ICV_LEN 4
-
-#define ALG_TKIP_KEY_LEN 32
-/* Starting offsets for each key */
-#define ALG_TKIP_TEMP_ENCR_KEY 0
-#define ALG_TKIP_TEMP_AUTH_TX_MIC_KEY 16
-#define ALG_TKIP_TEMP_AUTH_RX_MIC_KEY 24
-#define TKIP_IV_LEN 8
-#define TKIP_ICV_LEN 4
-
-#define ALG_CCMP_KEY_LEN 16
-#define CCMP_HDR_LEN 8
-#define CCMP_MIC_LEN 8
-#define CCMP_TK_LEN 16
-#define CCMP_PN_LEN 6
-
-#define NUM_RX_DATA_QUEUES 17
-
-struct ieee80211_local;
-struct ieee80211_sub_if_data;
-struct sta_info;
-
-#define KEY_FLAG_UPLOADED_TO_HARDWARE (1<<0)
-
-struct ieee80211_key {
- struct ieee80211_local *local;
- struct ieee80211_sub_if_data *sdata;
- struct sta_info *sta;
-
- struct list_head list;
-
- unsigned int flags;
-
- union {
- struct {
- /* last used TSC */
- u32 iv32;
- u16 iv16;
- u16 p1k[5];
- int tx_initialized;
-
- /* last received RSC */
- u32 iv32_rx[NUM_RX_DATA_QUEUES];
- u16 iv16_rx[NUM_RX_DATA_QUEUES];
- u16 p1k_rx[NUM_RX_DATA_QUEUES][5];
- int rx_initialized[NUM_RX_DATA_QUEUES];
- } tkip;
- struct {
- u8 tx_pn[6];
- u8 rx_pn[NUM_RX_DATA_QUEUES][6];
- struct crypto_cipher *tfm;
- u32 replays; /* dot11RSNAStatsCCMPReplays */
- /* scratch buffers for virt_to_page() (crypto API) */
-#ifndef AES_BLOCK_LEN
-#define AES_BLOCK_LEN 16
-#endif
- u8 tx_crypto_buf[6 * AES_BLOCK_LEN];
- u8 rx_crypto_buf[6 * AES_BLOCK_LEN];
- } ccmp;
- } u;
-
- /* number of times this key has been used */
- int tx_rx_count;
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct {
- struct dentry *stalink;
- struct dentry *dir;
- struct dentry *keylen;
- struct dentry *flags;
- struct dentry *keyidx;
- struct dentry *hw_key_idx;
- struct dentry *tx_rx_count;
- struct dentry *algorithm;
- struct dentry *tx_spec;
- struct dentry *rx_spec;
- struct dentry *replays;
- struct dentry *key;
- struct dentry *ifindex;
- } debugfs;
-#endif
-
- /*
- * key config, must be last because it contains key
- * material as variable length member
- */
- struct ieee80211_key_conf conf;
-};
-
-struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
- struct sta_info *sta,
- enum ieee80211_key_alg alg,
- int idx,
- size_t key_len,
- const u8 *key_data);
-void ieee80211_key_free(struct ieee80211_key *key);
-void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx);
-void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata);
-void ieee80211_enable_keys(struct ieee80211_sub_if_data *sdata);
-void ieee80211_disable_keys(struct ieee80211_sub_if_data *sdata);
-
-#endif /* IEEE80211_KEY_H */
+++ /dev/null
-/*
- * Copyright 2006, Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/* just for IFNAMSIZ */
-#include <linux/if.h>
-#include "ieee80211_led.h"
-
-void ieee80211_led_rx(struct ieee80211_local *local)
-{
- if (unlikely(!local->rx_led))
- return;
- if (local->rx_led_counter++ % 2 == 0)
- led_trigger_event(local->rx_led, LED_OFF);
- else
- led_trigger_event(local->rx_led, LED_FULL);
-}
-
-/* q is 1 if a packet was enqueued, 0 if it has been transmitted */
-void ieee80211_led_tx(struct ieee80211_local *local, int q)
-{
- if (unlikely(!local->tx_led))
- return;
- /* not sure how this is supposed to work ... */
- local->tx_led_counter += 2*q-1;
- if (local->tx_led_counter % 2 == 0)
- led_trigger_event(local->tx_led, LED_OFF);
- else
- led_trigger_event(local->tx_led, LED_FULL);
-}
-
-void ieee80211_led_assoc(struct ieee80211_local *local, bool associated)
-{
- if (unlikely(!local->assoc_led))
- return;
- if (associated)
- led_trigger_event(local->assoc_led, LED_FULL);
- else
- led_trigger_event(local->assoc_led, LED_OFF);
-}
-
-void ieee80211_led_radio(struct ieee80211_local *local, bool enabled)
-{
- if (unlikely(!local->radio_led))
- return;
- if (enabled)
- led_trigger_event(local->radio_led, LED_FULL);
- else
- led_trigger_event(local->radio_led, LED_OFF);
-}
-
-void ieee80211_led_init(struct ieee80211_local *local)
-{
- local->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
- if (local->rx_led) {
- snprintf(local->rx_led_name, sizeof(local->rx_led_name),
- "%srx", wiphy_name(local->hw.wiphy));
- local->rx_led->name = local->rx_led_name;
- if (led_trigger_register(local->rx_led)) {
- kfree(local->rx_led);
- local->rx_led = NULL;
- }
- }
-
- local->tx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
- if (local->tx_led) {
- snprintf(local->tx_led_name, sizeof(local->tx_led_name),
- "%stx", wiphy_name(local->hw.wiphy));
- local->tx_led->name = local->tx_led_name;
- if (led_trigger_register(local->tx_led)) {
- kfree(local->tx_led);
- local->tx_led = NULL;
- }
- }
-
- local->assoc_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
- if (local->assoc_led) {
- snprintf(local->assoc_led_name, sizeof(local->assoc_led_name),
- "%sassoc", wiphy_name(local->hw.wiphy));
- local->assoc_led->name = local->assoc_led_name;
- if (led_trigger_register(local->assoc_led)) {
- kfree(local->assoc_led);
- local->assoc_led = NULL;
- }
- }
-
- local->radio_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
- if (local->radio_led) {
- snprintf(local->radio_led_name, sizeof(local->radio_led_name),
- "%sradio", wiphy_name(local->hw.wiphy));
- local->radio_led->name = local->radio_led_name;
- if (led_trigger_register(local->radio_led)) {
- kfree(local->radio_led);
- local->radio_led = NULL;
- }
- }
-}
-
-void ieee80211_led_exit(struct ieee80211_local *local)
-{
- if (local->radio_led) {
- led_trigger_unregister(local->radio_led);
- kfree(local->radio_led);
- }
- if (local->assoc_led) {
- led_trigger_unregister(local->assoc_led);
- kfree(local->assoc_led);
- }
- if (local->tx_led) {
- led_trigger_unregister(local->tx_led);
- kfree(local->tx_led);
- }
- if (local->rx_led) {
- led_trigger_unregister(local->rx_led);
- kfree(local->rx_led);
- }
-}
-
-char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
-
- if (local->radio_led)
- return local->radio_led_name;
- return NULL;
-}
-EXPORT_SYMBOL(__ieee80211_get_radio_led_name);
-
-char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
-
- if (local->assoc_led)
- return local->assoc_led_name;
- return NULL;
-}
-EXPORT_SYMBOL(__ieee80211_get_assoc_led_name);
-
-char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
-
- if (local->tx_led)
- return local->tx_led_name;
- return NULL;
-}
-EXPORT_SYMBOL(__ieee80211_get_tx_led_name);
-
-char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
-
- if (local->rx_led)
- return local->rx_led_name;
- return NULL;
-}
-EXPORT_SYMBOL(__ieee80211_get_rx_led_name);
+++ /dev/null
-/*
- * Copyright 2006, Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/list.h>
-#include <linux/spinlock.h>
-#include <linux/leds.h>
-#include "ieee80211_i.h"
-
-#ifdef CONFIG_MAC80211_LEDS
-extern void ieee80211_led_rx(struct ieee80211_local *local);
-extern void ieee80211_led_tx(struct ieee80211_local *local, int q);
-extern void ieee80211_led_assoc(struct ieee80211_local *local,
- bool associated);
-extern void ieee80211_led_radio(struct ieee80211_local *local,
- bool enabled);
-extern void ieee80211_led_init(struct ieee80211_local *local);
-extern void ieee80211_led_exit(struct ieee80211_local *local);
-#else
-static inline void ieee80211_led_rx(struct ieee80211_local *local)
-{
-}
-static inline void ieee80211_led_tx(struct ieee80211_local *local, int q)
-{
-}
-static inline void ieee80211_led_assoc(struct ieee80211_local *local,
- bool associated)
-{
-}
-static inline void ieee80211_led_radio(struct ieee80211_local *local,
- bool enabled)
-{
-}
-static inline void ieee80211_led_init(struct ieee80211_local *local)
-{
-}
-static inline void ieee80211_led_exit(struct ieee80211_local *local)
-{
-}
-#endif
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005-2006, Devicescape Software, Inc.
- * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/rtnetlink.h>
-#include "ieee80211_rate.h"
-#include "ieee80211_i.h"
-
-struct rate_control_alg {
- struct list_head list;
- struct rate_control_ops *ops;
-};
-
-static LIST_HEAD(rate_ctrl_algs);
-static DEFINE_MUTEX(rate_ctrl_mutex);
-
-static char *ieee80211_default_rc_algo = CONFIG_MAC80211_RC_DEFAULT;
-module_param(ieee80211_default_rc_algo, charp, 0644);
-MODULE_PARM_DESC(ieee80211_default_rc_algo,
- "Default rate control algorithm for mac80211 to use");
-
-int ieee80211_rate_control_register(struct rate_control_ops *ops)
-{
- struct rate_control_alg *alg;
-
- if (!ops->name)
- return -EINVAL;
-
- mutex_lock(&rate_ctrl_mutex);
- list_for_each_entry(alg, &rate_ctrl_algs, list) {
- if (!strcmp(alg->ops->name, ops->name)) {
- /* don't register an algorithm twice */
- WARN_ON(1);
- mutex_unlock(&rate_ctrl_mutex);
- return -EALREADY;
- }
- }
-
- alg = kzalloc(sizeof(*alg), GFP_KERNEL);
- if (alg == NULL) {
- mutex_unlock(&rate_ctrl_mutex);
- return -ENOMEM;
- }
- alg->ops = ops;
-
- list_add_tail(&alg->list, &rate_ctrl_algs);
- mutex_unlock(&rate_ctrl_mutex);
-
- return 0;
-}
-EXPORT_SYMBOL(ieee80211_rate_control_register);
-
-void ieee80211_rate_control_unregister(struct rate_control_ops *ops)
-{
- struct rate_control_alg *alg;
-
- mutex_lock(&rate_ctrl_mutex);
- list_for_each_entry(alg, &rate_ctrl_algs, list) {
- if (alg->ops == ops) {
- list_del(&alg->list);
- kfree(alg);
- break;
- }
- }
- mutex_unlock(&rate_ctrl_mutex);
-}
-EXPORT_SYMBOL(ieee80211_rate_control_unregister);
-
-static struct rate_control_ops *
-ieee80211_try_rate_control_ops_get(const char *name)
-{
- struct rate_control_alg *alg;
- struct rate_control_ops *ops = NULL;
-
- if (!name)
- return NULL;
-
- mutex_lock(&rate_ctrl_mutex);
- list_for_each_entry(alg, &rate_ctrl_algs, list) {
- if (!strcmp(alg->ops->name, name))
- if (try_module_get(alg->ops->module)) {
- ops = alg->ops;
- break;
- }
- }
- mutex_unlock(&rate_ctrl_mutex);
- return ops;
-}
-
-/* Get the rate control algorithm. */
-static struct rate_control_ops *
-ieee80211_rate_control_ops_get(const char *name)
-{
- struct rate_control_ops *ops;
- const char *alg_name;
-
- if (!name)
- alg_name = ieee80211_default_rc_algo;
- else
- alg_name = name;
-
- ops = ieee80211_try_rate_control_ops_get(alg_name);
- if (!ops) {
- request_module("rc80211_%s", alg_name);
- ops = ieee80211_try_rate_control_ops_get(alg_name);
- }
- if (!ops && name)
- /* try default if specific alg requested but not found */
- ops = ieee80211_try_rate_control_ops_get(ieee80211_default_rc_algo);
-
- /* try built-in one if specific alg requested but not found */
- if (!ops && strlen(CONFIG_MAC80211_RC_DEFAULT))
- ops = ieee80211_try_rate_control_ops_get(CONFIG_MAC80211_RC_DEFAULT);
-
- return ops;
-}
-
-static void ieee80211_rate_control_ops_put(struct rate_control_ops *ops)
-{
- module_put(ops->module);
-}
-
-struct rate_control_ref *rate_control_alloc(const char *name,
- struct ieee80211_local *local)
-{
- struct rate_control_ref *ref;
-
- ref = kmalloc(sizeof(struct rate_control_ref), GFP_KERNEL);
- if (!ref)
- goto fail_ref;
- kref_init(&ref->kref);
- ref->ops = ieee80211_rate_control_ops_get(name);
- if (!ref->ops)
- goto fail_ops;
- ref->priv = ref->ops->alloc(local);
- if (!ref->priv)
- goto fail_priv;
- return ref;
-
-fail_priv:
- ieee80211_rate_control_ops_put(ref->ops);
-fail_ops:
- kfree(ref);
-fail_ref:
- return NULL;
-}
-
-static void rate_control_release(struct kref *kref)
-{
- struct rate_control_ref *ctrl_ref;
-
- ctrl_ref = container_of(kref, struct rate_control_ref, kref);
- ctrl_ref->ops->free(ctrl_ref->priv);
- ieee80211_rate_control_ops_put(ctrl_ref->ops);
- kfree(ctrl_ref);
-}
-
-void rate_control_get_rate(struct net_device *dev,
- struct ieee80211_supported_band *sband,
- struct sk_buff *skb,
- struct rate_selection *sel)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct rate_control_ref *ref = local->rate_ctrl;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct sta_info *sta = sta_info_get(local, hdr->addr1);
- int i;
-
- memset(sel, 0, sizeof(struct rate_selection));
-
- ref->ops->get_rate(ref->priv, dev, sband, skb, sel);
-
- /* Select a non-ERP backup rate. */
- if (!sel->nonerp) {
- for (i = 0; i < sband->n_bitrates; i++) {
- struct ieee80211_rate *rate = &sband->bitrates[i];
- if (sel->rate->bitrate < rate->bitrate)
- break;
-
- if (rate_supported(sta, sband->band, i) &&
- !(rate->flags & IEEE80211_RATE_ERP_G))
- sel->nonerp = rate;
- }
- }
-
- if (sta)
- sta_info_put(sta);
-}
-
-struct rate_control_ref *rate_control_get(struct rate_control_ref *ref)
-{
- kref_get(&ref->kref);
- return ref;
-}
-
-void rate_control_put(struct rate_control_ref *ref)
-{
- kref_put(&ref->kref, rate_control_release);
-}
-
-int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
- const char *name)
-{
- struct rate_control_ref *ref, *old;
-
- ASSERT_RTNL();
- if (local->open_count || netif_running(local->mdev))
- return -EBUSY;
-
- ref = rate_control_alloc(name, local);
- if (!ref) {
- printk(KERN_WARNING "%s: Failed to select rate control "
- "algorithm\n", wiphy_name(local->hw.wiphy));
- return -ENOENT;
- }
-
- old = local->rate_ctrl;
- local->rate_ctrl = ref;
- if (old) {
- rate_control_put(old);
- sta_info_flush(local, NULL);
- }
-
- printk(KERN_DEBUG "%s: Selected rate control "
- "algorithm '%s'\n", wiphy_name(local->hw.wiphy),
- ref->ops->name);
-
-
- return 0;
-}
-
-void rate_control_deinitialize(struct ieee80211_local *local)
-{
- struct rate_control_ref *ref;
-
- ref = local->rate_ctrl;
- local->rate_ctrl = NULL;
- rate_control_put(ref);
-}
-
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005, Devicescape Software, Inc.
- * Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef IEEE80211_RATE_H
-#define IEEE80211_RATE_H
-
-#include <linux/netdevice.h>
-#include <linux/skbuff.h>
-#include <linux/types.h>
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-#include "sta_info.h"
-
-/* TODO: kdoc */
-struct rate_selection {
- /* Selected transmission rate */
- struct ieee80211_rate *rate;
- /* Non-ERP rate to use if mac80211 decides it cannot use an ERP rate */
- struct ieee80211_rate *nonerp;
- /* probe with this rate, or NULL for no probing */
- struct ieee80211_rate *probe;
-};
-
-struct rate_control_ops {
- struct module *module;
- const char *name;
- void (*tx_status)(void *priv, struct net_device *dev,
- struct sk_buff *skb,
- struct ieee80211_tx_status *status);
- void (*get_rate)(void *priv, struct net_device *dev,
- struct ieee80211_supported_band *band,
- struct sk_buff *skb,
- struct rate_selection *sel);
- void (*rate_init)(void *priv, void *priv_sta,
- struct ieee80211_local *local, struct sta_info *sta);
- void (*clear)(void *priv);
-
- void *(*alloc)(struct ieee80211_local *local);
- void (*free)(void *priv);
- void *(*alloc_sta)(void *priv, gfp_t gfp);
- void (*free_sta)(void *priv, void *priv_sta);
-
- int (*add_attrs)(void *priv, struct kobject *kobj);
- void (*remove_attrs)(void *priv, struct kobject *kobj);
- void (*add_sta_debugfs)(void *priv, void *priv_sta,
- struct dentry *dir);
- void (*remove_sta_debugfs)(void *priv, void *priv_sta);
-};
-
-struct rate_control_ref {
- struct rate_control_ops *ops;
- void *priv;
- struct kref kref;
-};
-
-int ieee80211_rate_control_register(struct rate_control_ops *ops);
-void ieee80211_rate_control_unregister(struct rate_control_ops *ops);
-
-/* Get a reference to the rate control algorithm. If `name' is NULL, get the
- * first available algorithm. */
-struct rate_control_ref *rate_control_alloc(const char *name,
- struct ieee80211_local *local);
-void rate_control_get_rate(struct net_device *dev,
- struct ieee80211_supported_band *sband,
- struct sk_buff *skb,
- struct rate_selection *sel);
-struct rate_control_ref *rate_control_get(struct rate_control_ref *ref);
-void rate_control_put(struct rate_control_ref *ref);
-
-static inline void rate_control_tx_status(struct net_device *dev,
- struct sk_buff *skb,
- struct ieee80211_tx_status *status)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct rate_control_ref *ref = local->rate_ctrl;
-
- ref->ops->tx_status(ref->priv, dev, skb, status);
-}
-
-
-static inline void rate_control_rate_init(struct sta_info *sta,
- struct ieee80211_local *local)
-{
- struct rate_control_ref *ref = sta->rate_ctrl;
- ref->ops->rate_init(ref->priv, sta->rate_ctrl_priv, local, sta);
-}
-
-
-static inline void rate_control_clear(struct ieee80211_local *local)
-{
- struct rate_control_ref *ref = local->rate_ctrl;
- ref->ops->clear(ref->priv);
-}
-
-static inline void *rate_control_alloc_sta(struct rate_control_ref *ref,
- gfp_t gfp)
-{
- return ref->ops->alloc_sta(ref->priv, gfp);
-}
-
-static inline void rate_control_free_sta(struct rate_control_ref *ref,
- void *priv)
-{
- ref->ops->free_sta(ref->priv, priv);
-}
-
-static inline void rate_control_add_sta_debugfs(struct sta_info *sta)
-{
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct rate_control_ref *ref = sta->rate_ctrl;
- if (sta->debugfs.dir && ref->ops->add_sta_debugfs)
- ref->ops->add_sta_debugfs(ref->priv, sta->rate_ctrl_priv,
- sta->debugfs.dir);
-#endif
-}
-
-static inline void rate_control_remove_sta_debugfs(struct sta_info *sta)
-{
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct rate_control_ref *ref = sta->rate_ctrl;
- if (ref->ops->remove_sta_debugfs)
- ref->ops->remove_sta_debugfs(ref->priv, sta->rate_ctrl_priv);
-#endif
-}
-
-static inline int rate_supported(struct sta_info *sta,
- enum ieee80211_band band,
- int index)
-{
- return (sta == NULL || sta->supp_rates[band] & BIT(index));
-}
-
-static inline int
-rate_lowest_index(struct ieee80211_local *local,
- struct ieee80211_supported_band *sband,
- struct sta_info *sta)
-{
- int i;
-
- for (i = 0; i < sband->n_bitrates; i++)
- if (rate_supported(sta, sband->band, i))
- return i;
-
- /* warn when we cannot find a rate. */
- WARN_ON(1);
-
- return 0;
-}
-
-static inline struct ieee80211_rate *
-rate_lowest(struct ieee80211_local *local,
- struct ieee80211_supported_band *sband,
- struct sta_info *sta)
-{
- return &sband->bitrates[rate_lowest_index(local, sband, sta)];
-}
-
-
-/* functions for rate control related to a device */
-int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
- const char *name);
-void rate_control_deinitialize(struct ieee80211_local *local);
-
-
-/* Rate control algorithms */
-#if defined(RC80211_SIMPLE_COMPILE) || \
- (defined(CONFIG_MAC80211_RC_SIMPLE) && \
- !defined(CONFIG_MAC80211_RC_SIMPLE_MODULE))
-extern int rc80211_simple_init(void);
-extern void rc80211_simple_exit(void);
-#else
-static inline int rc80211_simple_init(void)
-{
- return 0;
-}
-static inline void rc80211_simple_exit(void)
-{
-}
-#endif
-
-#if defined(RC80211_PID_COMPILE) || \
- (defined(CONFIG_MAC80211_RC_PID) && \
- !defined(CONFIG_MAC80211_RC_PID_MODULE))
-extern int rc80211_pid_init(void);
-extern void rc80211_pid_exit(void);
-#else
-static inline int rc80211_pid_init(void)
-{
- return 0;
-}
-static inline void rc80211_pid_exit(void)
-{
-}
-#endif
-
-#endif /* IEEE80211_RATE_H */
+++ /dev/null
-/*
- * BSS client mode implementation
- * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi>
- * Copyright 2004, Instant802 Networks, Inc.
- * Copyright 2005, Devicescape Software, Inc.
- * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
- * Copyright 2007, Michael Wu <flamingice@sourmilk.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/* TODO:
- * order BSS list by RSSI(?) ("quality of AP")
- * scan result table filtering (by capability (privacy, IBSS/BSS, WPA/RSN IE,
- * SSID)
- */
-#include <linux/delay.h>
-#include <linux/if_ether.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/if_arp.h>
-#include <linux/wireless.h>
-#include <linux/random.h>
-#include <linux/etherdevice.h>
-#include <net/iw_handler.h>
-#include <asm/types.h>
-
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-#include "ieee80211_led.h"
-
-#define IEEE80211_AUTH_TIMEOUT (HZ / 5)
-#define IEEE80211_AUTH_MAX_TRIES 3
-#define IEEE80211_ASSOC_TIMEOUT (HZ / 5)
-#define IEEE80211_ASSOC_MAX_TRIES 3
-#define IEEE80211_MONITORING_INTERVAL (2 * HZ)
-#define IEEE80211_PROBE_INTERVAL (60 * HZ)
-#define IEEE80211_RETRY_AUTH_INTERVAL (1 * HZ)
-#define IEEE80211_SCAN_INTERVAL (2 * HZ)
-#define IEEE80211_SCAN_INTERVAL_SLOW (15 * HZ)
-#define IEEE80211_IBSS_JOIN_TIMEOUT (20 * HZ)
-
-#define IEEE80211_PROBE_DELAY (HZ / 33)
-#define IEEE80211_CHANNEL_TIME (HZ / 33)
-#define IEEE80211_PASSIVE_CHANNEL_TIME (HZ / 5)
-#define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
-#define IEEE80211_IBSS_MERGE_INTERVAL (30 * HZ)
-#define IEEE80211_IBSS_INACTIVITY_LIMIT (60 * HZ)
-
-#define IEEE80211_IBSS_MAX_STA_ENTRIES 128
-
-
-#define IEEE80211_FC(type, stype) cpu_to_le16(type | stype)
-
-#define ERP_INFO_USE_PROTECTION BIT(1)
-
-/* mgmt header + 1 byte action code */
-#define IEEE80211_MIN_ACTION_SIZE (24 + 1)
-
-#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
-#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
-#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
-#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
-#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
-
-/* next values represent the buffer size for A-MPDU frame.
- * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2) */
-#define IEEE80211_MIN_AMPDU_BUF 0x8
-#define IEEE80211_MAX_AMPDU_BUF 0x40
-
-static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst,
- u8 *ssid, size_t ssid_len);
-static struct ieee80211_sta_bss *
-ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid, int freq,
- u8 *ssid, u8 ssid_len);
-static void ieee80211_rx_bss_put(struct net_device *dev,
- struct ieee80211_sta_bss *bss);
-static int ieee80211_sta_find_ibss(struct net_device *dev,
- struct ieee80211_if_sta *ifsta);
-static int ieee80211_sta_wep_configured(struct net_device *dev);
-static int ieee80211_sta_start_scan(struct net_device *dev,
- u8 *ssid, size_t ssid_len);
-static int ieee80211_sta_config_auth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta);
-
-
-/* Parsed Information Elements */
-struct ieee802_11_elems {
- /* pointers to IEs */
- u8 *ssid;
- u8 *supp_rates;
- u8 *fh_params;
- u8 *ds_params;
- u8 *cf_params;
- u8 *tim;
- u8 *ibss_params;
- u8 *challenge;
- u8 *wpa;
- u8 *rsn;
- u8 *erp_info;
- u8 *ext_supp_rates;
- u8 *wmm_info;
- u8 *wmm_param;
- u8 *ht_cap_elem;
- u8 *ht_info_elem;
- /* length of them, respectively */
- u8 ssid_len;
- u8 supp_rates_len;
- u8 fh_params_len;
- u8 ds_params_len;
- u8 cf_params_len;
- u8 tim_len;
- u8 ibss_params_len;
- u8 challenge_len;
- u8 wpa_len;
- u8 rsn_len;
- u8 erp_info_len;
- u8 ext_supp_rates_len;
- u8 wmm_info_len;
- u8 wmm_param_len;
- u8 ht_cap_elem_len;
- u8 ht_info_elem_len;
-};
-
-static void ieee802_11_parse_elems(u8 *start, size_t len,
- struct ieee802_11_elems *elems)
-{
- size_t left = len;
- u8 *pos = start;
-
- memset(elems, 0, sizeof(*elems));
-
- while (left >= 2) {
- u8 id, elen;
-
- id = *pos++;
- elen = *pos++;
- left -= 2;
-
- if (elen > left)
- return;
-
- switch (id) {
- case WLAN_EID_SSID:
- elems->ssid = pos;
- elems->ssid_len = elen;
- break;
- case WLAN_EID_SUPP_RATES:
- elems->supp_rates = pos;
- elems->supp_rates_len = elen;
- break;
- case WLAN_EID_FH_PARAMS:
- elems->fh_params = pos;
- elems->fh_params_len = elen;
- break;
- case WLAN_EID_DS_PARAMS:
- elems->ds_params = pos;
- elems->ds_params_len = elen;
- break;
- case WLAN_EID_CF_PARAMS:
- elems->cf_params = pos;
- elems->cf_params_len = elen;
- break;
- case WLAN_EID_TIM:
- elems->tim = pos;
- elems->tim_len = elen;
- break;
- case WLAN_EID_IBSS_PARAMS:
- elems->ibss_params = pos;
- elems->ibss_params_len = elen;
- break;
- case WLAN_EID_CHALLENGE:
- elems->challenge = pos;
- elems->challenge_len = elen;
- break;
- case WLAN_EID_WPA:
- if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 &&
- pos[2] == 0xf2) {
- /* Microsoft OUI (00:50:F2) */
- if (pos[3] == 1) {
- /* OUI Type 1 - WPA IE */
- elems->wpa = pos;
- elems->wpa_len = elen;
- } else if (elen >= 5 && pos[3] == 2) {
- if (pos[4] == 0) {
- elems->wmm_info = pos;
- elems->wmm_info_len = elen;
- } else if (pos[4] == 1) {
- elems->wmm_param = pos;
- elems->wmm_param_len = elen;
- }
- }
- }
- break;
- case WLAN_EID_RSN:
- elems->rsn = pos;
- elems->rsn_len = elen;
- break;
- case WLAN_EID_ERP_INFO:
- elems->erp_info = pos;
- elems->erp_info_len = elen;
- break;
- case WLAN_EID_EXT_SUPP_RATES:
- elems->ext_supp_rates = pos;
- elems->ext_supp_rates_len = elen;
- break;
- case WLAN_EID_HT_CAPABILITY:
- elems->ht_cap_elem = pos;
- elems->ht_cap_elem_len = elen;
- break;
- case WLAN_EID_HT_EXTRA_INFO:
- elems->ht_info_elem = pos;
- elems->ht_info_elem_len = elen;
- break;
- default:
- break;
- }
-
- left -= elen;
- pos += elen;
- }
-}
-
-
-static int ecw2cw(int ecw)
-{
- int cw = 1;
- while (ecw > 0) {
- cw <<= 1;
- ecw--;
- }
- return cw - 1;
-}
-
-static void ieee80211_sta_wmm_params(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- u8 *wmm_param, size_t wmm_param_len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_tx_queue_params params;
- size_t left;
- int count;
- u8 *pos;
-
- if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1)
- return;
- count = wmm_param[6] & 0x0f;
- if (count == ifsta->wmm_last_param_set)
- return;
- ifsta->wmm_last_param_set = count;
-
- pos = wmm_param + 8;
- left = wmm_param_len - 8;
-
- memset(¶ms, 0, sizeof(params));
-
- if (!local->ops->conf_tx)
- return;
-
- local->wmm_acm = 0;
- for (; left >= 4; left -= 4, pos += 4) {
- int aci = (pos[0] >> 5) & 0x03;
- int acm = (pos[0] >> 4) & 0x01;
- int queue;
-
- switch (aci) {
- case 1:
- queue = IEEE80211_TX_QUEUE_DATA3;
- if (acm) {
- local->wmm_acm |= BIT(0) | BIT(3);
- }
- break;
- case 2:
- queue = IEEE80211_TX_QUEUE_DATA1;
- if (acm) {
- local->wmm_acm |= BIT(4) | BIT(5);
- }
- break;
- case 3:
- queue = IEEE80211_TX_QUEUE_DATA0;
- if (acm) {
- local->wmm_acm |= BIT(6) | BIT(7);
- }
- break;
- case 0:
- default:
- queue = IEEE80211_TX_QUEUE_DATA2;
- if (acm) {
- local->wmm_acm |= BIT(1) | BIT(2);
- }
- break;
- }
-
- params.aifs = pos[0] & 0x0f;
- params.cw_max = ecw2cw((pos[1] & 0xf0) >> 4);
- params.cw_min = ecw2cw(pos[1] & 0x0f);
- /* TXOP is in units of 32 usec; burst_time in 0.1 ms */
- params.burst_time = (pos[2] | (pos[3] << 8)) * 32 / 100;
- printk(KERN_DEBUG "%s: WMM queue=%d aci=%d acm=%d aifs=%d "
- "cWmin=%d cWmax=%d burst=%d\n",
- dev->name, queue, aci, acm, params.aifs, params.cw_min,
- params.cw_max, params.burst_time);
- /* TODO: handle ACM (block TX, fallback to next lowest allowed
- * AC for now) */
- if (local->ops->conf_tx(local_to_hw(local), queue, ¶ms)) {
- printk(KERN_DEBUG "%s: failed to set TX queue "
- "parameters for queue %d\n", dev->name, queue);
- }
- }
-}
-
-
-static u32 ieee80211_handle_erp_ie(struct ieee80211_sub_if_data *sdata,
- u8 erp_value)
-{
- struct ieee80211_bss_conf *bss_conf = &sdata->bss_conf;
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- bool use_protection = (erp_value & WLAN_ERP_USE_PROTECTION) != 0;
- bool preamble_mode = (erp_value & WLAN_ERP_BARKER_PREAMBLE) != 0;
- DECLARE_MAC_BUF(mac);
- u32 changed = 0;
-
- if (use_protection != bss_conf->use_cts_prot) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: CTS protection %s (BSSID="
- "%s)\n",
- sdata->dev->name,
- use_protection ? "enabled" : "disabled",
- print_mac(mac, ifsta->bssid));
- }
- bss_conf->use_cts_prot = use_protection;
- changed |= BSS_CHANGED_ERP_CTS_PROT;
- }
-
- if (preamble_mode != bss_conf->use_short_preamble) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: switched to %s barker preamble"
- " (BSSID=%s)\n",
- sdata->dev->name,
- (preamble_mode == WLAN_ERP_PREAMBLE_SHORT) ?
- "short" : "long",
- print_mac(mac, ifsta->bssid));
- }
- bss_conf->use_short_preamble = preamble_mode;
- changed |= BSS_CHANGED_ERP_PREAMBLE;
- }
-
- return changed;
-}
-
-int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
- struct ieee80211_ht_info *ht_info)
-{
-
- if (ht_info == NULL)
- return -EINVAL;
-
- memset(ht_info, 0, sizeof(*ht_info));
-
- if (ht_cap_ie) {
- u8 ampdu_info = ht_cap_ie->ampdu_params_info;
-
- ht_info->ht_supported = 1;
- ht_info->cap = le16_to_cpu(ht_cap_ie->cap_info);
- ht_info->ampdu_factor =
- ampdu_info & IEEE80211_HT_CAP_AMPDU_FACTOR;
- ht_info->ampdu_density =
- (ampdu_info & IEEE80211_HT_CAP_AMPDU_DENSITY) >> 2;
- memcpy(ht_info->supp_mcs_set, ht_cap_ie->supp_mcs_set, 16);
- } else
- ht_info->ht_supported = 0;
-
- return 0;
-}
-
-int ieee80211_ht_addt_info_ie_to_ht_bss_info(
- struct ieee80211_ht_addt_info *ht_add_info_ie,
- struct ieee80211_ht_bss_info *bss_info)
-{
- if (bss_info == NULL)
- return -EINVAL;
-
- memset(bss_info, 0, sizeof(*bss_info));
-
- if (ht_add_info_ie) {
- u16 op_mode;
- op_mode = le16_to_cpu(ht_add_info_ie->operation_mode);
-
- bss_info->primary_channel = ht_add_info_ie->control_chan;
- bss_info->bss_cap = ht_add_info_ie->ht_param;
- bss_info->bss_op_mode = (u8)(op_mode & 0xff);
- }
-
- return 0;
-}
-
-static void ieee80211_sta_send_associnfo(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- char *buf;
- size_t len;
- int i;
- union iwreq_data wrqu;
-
- if (!ifsta->assocreq_ies && !ifsta->assocresp_ies)
- return;
-
- buf = kmalloc(50 + 2 * (ifsta->assocreq_ies_len +
- ifsta->assocresp_ies_len), GFP_KERNEL);
- if (!buf)
- return;
-
- len = sprintf(buf, "ASSOCINFO(");
- if (ifsta->assocreq_ies) {
- len += sprintf(buf + len, "ReqIEs=");
- for (i = 0; i < ifsta->assocreq_ies_len; i++) {
- len += sprintf(buf + len, "%02x",
- ifsta->assocreq_ies[i]);
- }
- }
- if (ifsta->assocresp_ies) {
- if (ifsta->assocreq_ies)
- len += sprintf(buf + len, " ");
- len += sprintf(buf + len, "RespIEs=");
- for (i = 0; i < ifsta->assocresp_ies_len; i++) {
- len += sprintf(buf + len, "%02x",
- ifsta->assocresp_ies[i]);
- }
- }
- len += sprintf(buf + len, ")");
-
- if (len > IW_CUSTOM_MAX) {
- len = sprintf(buf, "ASSOCRESPIE=");
- for (i = 0; i < ifsta->assocresp_ies_len; i++) {
- len += sprintf(buf + len, "%02x",
- ifsta->assocresp_ies[i]);
- }
- }
-
- memset(&wrqu, 0, sizeof(wrqu));
- wrqu.data.length = len;
- wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
-
- kfree(buf);
-}
-
-
-static void ieee80211_set_associated(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- bool assoc)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_local *local = sdata->local;
- union iwreq_data wrqu;
- u32 changed = BSS_CHANGED_ASSOC;
-
- if (assoc) {
- struct ieee80211_sta_bss *bss;
-
- ifsta->flags |= IEEE80211_STA_ASSOCIATED;
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
- return;
-
- bss = ieee80211_rx_bss_get(dev, ifsta->bssid,
- local->hw.conf.channel->center_freq,
- ifsta->ssid, ifsta->ssid_len);
- if (bss) {
- if (bss->has_erp_value)
- changed |= ieee80211_handle_erp_ie(
- sdata, bss->erp_value);
- ieee80211_rx_bss_put(dev, bss);
- }
-
- netif_carrier_on(dev);
- ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET;
- memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN);
- memcpy(wrqu.ap_addr.sa_data, sdata->u.sta.bssid, ETH_ALEN);
- ieee80211_sta_send_associnfo(dev, ifsta);
- } else {
- ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
-
- netif_carrier_off(dev);
- ieee80211_reset_erp_info(dev);
- memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
- }
- wrqu.ap_addr.sa_family = ARPHRD_ETHER;
- wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
- ifsta->last_probe = jiffies;
- ieee80211_led_assoc(local, assoc);
-
- sdata->bss_conf.assoc = assoc;
- ieee80211_bss_info_change_notify(sdata, changed);
-}
-
-static void ieee80211_set_disassoc(struct net_device *dev,
- struct ieee80211_if_sta *ifsta, int deauth)
-{
- if (deauth)
- ifsta->auth_tries = 0;
- ifsta->assoc_tries = 0;
- ieee80211_set_associated(dev, ifsta, 0);
-}
-
-static void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb,
- int encrypt)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_tx_packet_data *pkt_data;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- skb->dev = sdata->local->mdev;
- skb_set_mac_header(skb, 0);
- skb_set_network_header(skb, 0);
- skb_set_transport_header(skb, 0);
-
- pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
- memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data));
- pkt_data->ifindex = sdata->dev->ifindex;
- if (!encrypt)
- pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
-
- dev_queue_xmit(skb);
-}
-
-
-static void ieee80211_send_auth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- int transaction, u8 *extra, size_t extra_len,
- int encrypt)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
-
- skb = dev_alloc_skb(local->hw.extra_tx_headroom +
- sizeof(*mgmt) + 6 + extra_len);
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for auth "
- "frame\n", dev->name);
- return;
- }
- skb_reserve(skb, local->hw.extra_tx_headroom);
-
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24 + 6);
- memset(mgmt, 0, 24 + 6);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_AUTH);
- if (encrypt)
- mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
- memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->u.auth.auth_alg = cpu_to_le16(ifsta->auth_alg);
- mgmt->u.auth.auth_transaction = cpu_to_le16(transaction);
- ifsta->auth_transaction = transaction + 1;
- mgmt->u.auth.status_code = cpu_to_le16(0);
- if (extra)
- memcpy(skb_put(skb, extra_len), extra, extra_len);
-
- ieee80211_sta_tx(dev, skb, encrypt);
-}
-
-
-static void ieee80211_authenticate(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- DECLARE_MAC_BUF(mac);
-
- ifsta->auth_tries++;
- if (ifsta->auth_tries > IEEE80211_AUTH_MAX_TRIES) {
- printk(KERN_DEBUG "%s: authentication with AP %s"
- " timed out\n",
- dev->name, print_mac(mac, ifsta->bssid));
- ifsta->state = IEEE80211_DISABLED;
- return;
- }
-
- ifsta->state = IEEE80211_AUTHENTICATE;
- printk(KERN_DEBUG "%s: authenticate with AP %s\n",
- dev->name, print_mac(mac, ifsta->bssid));
-
- ieee80211_send_auth(dev, ifsta, 1, NULL, 0, 0);
-
- mod_timer(&ifsta->timer, jiffies + IEEE80211_AUTH_TIMEOUT);
-}
-
-
-static void ieee80211_send_assoc(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
- u8 *pos, *ies;
- int i, len;
- u16 capab;
- struct ieee80211_sta_bss *bss;
- int wmm = 0;
- struct ieee80211_supported_band *sband;
-
- skb = dev_alloc_skb(local->hw.extra_tx_headroom +
- sizeof(*mgmt) + 200 + ifsta->extra_ie_len +
- ifsta->ssid_len);
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for assoc "
- "frame\n", dev->name);
- return;
- }
- skb_reserve(skb, local->hw.extra_tx_headroom);
-
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
- capab = ifsta->capab;
-
- if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ) {
- if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
- capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
- if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
- capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
- }
-
- bss = ieee80211_rx_bss_get(dev, ifsta->bssid,
- local->hw.conf.channel->center_freq,
- ifsta->ssid, ifsta->ssid_len);
- if (bss) {
- if (bss->capability & WLAN_CAPABILITY_PRIVACY)
- capab |= WLAN_CAPABILITY_PRIVACY;
- if (bss->wmm_ie) {
- wmm = 1;
- }
- ieee80211_rx_bss_put(dev, bss);
- }
-
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
-
- if (ifsta->flags & IEEE80211_STA_PREV_BSSID_SET) {
- skb_put(skb, 10);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_REASSOC_REQ);
- mgmt->u.reassoc_req.capab_info = cpu_to_le16(capab);
- mgmt->u.reassoc_req.listen_interval = cpu_to_le16(1);
- memcpy(mgmt->u.reassoc_req.current_ap, ifsta->prev_bssid,
- ETH_ALEN);
- } else {
- skb_put(skb, 4);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_ASSOC_REQ);
- mgmt->u.assoc_req.capab_info = cpu_to_le16(capab);
- mgmt->u.assoc_req.listen_interval = cpu_to_le16(1);
- }
-
- /* SSID */
- ies = pos = skb_put(skb, 2 + ifsta->ssid_len);
- *pos++ = WLAN_EID_SSID;
- *pos++ = ifsta->ssid_len;
- memcpy(pos, ifsta->ssid, ifsta->ssid_len);
-
- len = sband->n_bitrates;
- if (len > 8)
- len = 8;
- pos = skb_put(skb, len + 2);
- *pos++ = WLAN_EID_SUPP_RATES;
- *pos++ = len;
- for (i = 0; i < len; i++) {
- int rate = sband->bitrates[i].bitrate;
- *pos++ = (u8) (rate / 5);
- }
-
- if (sband->n_bitrates > len) {
- pos = skb_put(skb, sband->n_bitrates - len + 2);
- *pos++ = WLAN_EID_EXT_SUPP_RATES;
- *pos++ = sband->n_bitrates - len;
- for (i = len; i < sband->n_bitrates; i++) {
- int rate = sband->bitrates[i].bitrate;
- *pos++ = (u8) (rate / 5);
- }
- }
-
- if (ifsta->extra_ie) {
- pos = skb_put(skb, ifsta->extra_ie_len);
- memcpy(pos, ifsta->extra_ie, ifsta->extra_ie_len);
- }
-
- if (wmm && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
- pos = skb_put(skb, 9);
- *pos++ = WLAN_EID_VENDOR_SPECIFIC;
- *pos++ = 7; /* len */
- *pos++ = 0x00; /* Microsoft OUI 00:50:F2 */
- *pos++ = 0x50;
- *pos++ = 0xf2;
- *pos++ = 2; /* WME */
- *pos++ = 0; /* WME info */
- *pos++ = 1; /* WME ver */
- *pos++ = 0;
- }
- /* wmm support is a must to HT */
- if (wmm && sband->ht_info.ht_supported) {
- __le16 tmp = cpu_to_le16(sband->ht_info.cap);
- pos = skb_put(skb, sizeof(struct ieee80211_ht_cap)+2);
- *pos++ = WLAN_EID_HT_CAPABILITY;
- *pos++ = sizeof(struct ieee80211_ht_cap);
- memset(pos, 0, sizeof(struct ieee80211_ht_cap));
- memcpy(pos, &tmp, sizeof(u16));
- pos += sizeof(u16);
- /* TODO: needs a define here for << 2 */
- *pos++ = sband->ht_info.ampdu_factor |
- (sband->ht_info.ampdu_density << 2);
- memcpy(pos, sband->ht_info.supp_mcs_set, 16);
- }
-
- kfree(ifsta->assocreq_ies);
- ifsta->assocreq_ies_len = (skb->data + skb->len) - ies;
- ifsta->assocreq_ies = kmalloc(ifsta->assocreq_ies_len, GFP_KERNEL);
- if (ifsta->assocreq_ies)
- memcpy(ifsta->assocreq_ies, ies, ifsta->assocreq_ies_len);
-
- ieee80211_sta_tx(dev, skb, 0);
-}
-
-
-static void ieee80211_send_deauth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta, u16 reason)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
-
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for deauth "
- "frame\n", dev->name);
- return;
- }
- skb_reserve(skb, local->hw.extra_tx_headroom);
-
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_DEAUTH);
- skb_put(skb, 2);
- mgmt->u.deauth.reason_code = cpu_to_le16(reason);
-
- ieee80211_sta_tx(dev, skb, 0);
-}
-
-
-static void ieee80211_send_disassoc(struct net_device *dev,
- struct ieee80211_if_sta *ifsta, u16 reason)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
-
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for disassoc "
- "frame\n", dev->name);
- return;
- }
- skb_reserve(skb, local->hw.extra_tx_headroom);
-
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, ifsta->bssid, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_DISASSOC);
- skb_put(skb, 2);
- mgmt->u.disassoc.reason_code = cpu_to_le16(reason);
-
- ieee80211_sta_tx(dev, skb, 0);
-}
-
-
-static int ieee80211_privacy_mismatch(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sta_bss *bss;
- int bss_privacy;
- int wep_privacy;
- int privacy_invoked;
-
- if (!ifsta || (ifsta->flags & IEEE80211_STA_MIXED_CELL))
- return 0;
-
- bss = ieee80211_rx_bss_get(dev, ifsta->bssid,
- local->hw.conf.channel->center_freq,
- ifsta->ssid, ifsta->ssid_len);
- if (!bss)
- return 0;
-
- bss_privacy = !!(bss->capability & WLAN_CAPABILITY_PRIVACY);
- wep_privacy = !!ieee80211_sta_wep_configured(dev);
- privacy_invoked = !!(ifsta->flags & IEEE80211_STA_PRIVACY_INVOKED);
-
- ieee80211_rx_bss_put(dev, bss);
-
- if ((bss_privacy == wep_privacy) || (bss_privacy == privacy_invoked))
- return 0;
-
- return 1;
-}
-
-
-static void ieee80211_associate(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- DECLARE_MAC_BUF(mac);
-
- ifsta->assoc_tries++;
- if (ifsta->assoc_tries > IEEE80211_ASSOC_MAX_TRIES) {
- printk(KERN_DEBUG "%s: association with AP %s"
- " timed out\n",
- dev->name, print_mac(mac, ifsta->bssid));
- ifsta->state = IEEE80211_DISABLED;
- return;
- }
-
- ifsta->state = IEEE80211_ASSOCIATE;
- printk(KERN_DEBUG "%s: associate with AP %s\n",
- dev->name, print_mac(mac, ifsta->bssid));
- if (ieee80211_privacy_mismatch(dev, ifsta)) {
- printk(KERN_DEBUG "%s: mismatch in privacy configuration and "
- "mixed-cell disabled - abort association\n", dev->name);
- ifsta->state = IEEE80211_DISABLED;
- return;
- }
-
- ieee80211_send_assoc(dev, ifsta);
-
- mod_timer(&ifsta->timer, jiffies + IEEE80211_ASSOC_TIMEOUT);
-}
-
-
-static void ieee80211_associated(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
- int disassoc;
- DECLARE_MAC_BUF(mac);
-
- /* TODO: start monitoring current AP signal quality and number of
- * missed beacons. Scan other channels every now and then and search
- * for better APs. */
- /* TODO: remove expired BSSes */
-
- ifsta->state = IEEE80211_ASSOCIATED;
-
- sta = sta_info_get(local, ifsta->bssid);
- if (!sta) {
- printk(KERN_DEBUG "%s: No STA entry for own AP %s\n",
- dev->name, print_mac(mac, ifsta->bssid));
- disassoc = 1;
- } else {
- disassoc = 0;
- if (time_after(jiffies,
- sta->last_rx + IEEE80211_MONITORING_INTERVAL)) {
- if (ifsta->flags & IEEE80211_STA_PROBEREQ_POLL) {
- printk(KERN_DEBUG "%s: No ProbeResp from "
- "current AP %s - assume out of "
- "range\n",
- dev->name, print_mac(mac, ifsta->bssid));
- disassoc = 1;
- sta_info_free(sta);
- } else
- ieee80211_send_probe_req(dev, ifsta->bssid,
- local->scan_ssid,
- local->scan_ssid_len);
- ifsta->flags ^= IEEE80211_STA_PROBEREQ_POLL;
- } else {
- ifsta->flags &= ~IEEE80211_STA_PROBEREQ_POLL;
- if (time_after(jiffies, ifsta->last_probe +
- IEEE80211_PROBE_INTERVAL)) {
- ifsta->last_probe = jiffies;
- ieee80211_send_probe_req(dev, ifsta->bssid,
- ifsta->ssid,
- ifsta->ssid_len);
- }
- }
- sta_info_put(sta);
- }
- if (disassoc) {
- ifsta->state = IEEE80211_DISABLED;
- ieee80211_set_associated(dev, ifsta, 0);
- } else {
- mod_timer(&ifsta->timer, jiffies +
- IEEE80211_MONITORING_INTERVAL);
- }
-}
-
-
-static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst,
- u8 *ssid, size_t ssid_len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_supported_band *sband;
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
- u8 *pos, *supp_rates, *esupp_rates = NULL;
- int i;
-
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt) + 200);
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
- "request\n", dev->name);
- return;
- }
- skb_reserve(skb, local->hw.extra_tx_headroom);
-
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_PROBE_REQ);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- if (dst) {
- memcpy(mgmt->da, dst, ETH_ALEN);
- memcpy(mgmt->bssid, dst, ETH_ALEN);
- } else {
- memset(mgmt->da, 0xff, ETH_ALEN);
- memset(mgmt->bssid, 0xff, ETH_ALEN);
- }
- pos = skb_put(skb, 2 + ssid_len);
- *pos++ = WLAN_EID_SSID;
- *pos++ = ssid_len;
- memcpy(pos, ssid, ssid_len);
-
- supp_rates = skb_put(skb, 2);
- supp_rates[0] = WLAN_EID_SUPP_RATES;
- supp_rates[1] = 0;
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
- for (i = 0; i < sband->n_bitrates; i++) {
- struct ieee80211_rate *rate = &sband->bitrates[i];
- if (esupp_rates) {
- pos = skb_put(skb, 1);
- esupp_rates[1]++;
- } else if (supp_rates[1] == 8) {
- esupp_rates = skb_put(skb, 3);
- esupp_rates[0] = WLAN_EID_EXT_SUPP_RATES;
- esupp_rates[1] = 1;
- pos = &esupp_rates[2];
- } else {
- pos = skb_put(skb, 1);
- supp_rates[1]++;
- }
- *pos = rate->bitrate / 5;
- }
-
- ieee80211_sta_tx(dev, skb, 0);
-}
-
-
-static int ieee80211_sta_wep_configured(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (!sdata || !sdata->default_key ||
- sdata->default_key->conf.alg != ALG_WEP)
- return 0;
- return 1;
-}
-
-
-static void ieee80211_auth_completed(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- printk(KERN_DEBUG "%s: authenticated\n", dev->name);
- ifsta->flags |= IEEE80211_STA_AUTHENTICATED;
- ieee80211_associate(dev, ifsta);
-}
-
-
-static void ieee80211_auth_challenge(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len)
-{
- u8 *pos;
- struct ieee802_11_elems elems;
-
- printk(KERN_DEBUG "%s: replying to auth challenge\n", dev->name);
- pos = mgmt->u.auth.variable;
- ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
- if (!elems.challenge) {
- printk(KERN_DEBUG "%s: no challenge IE in shared key auth "
- "frame\n", dev->name);
- return;
- }
- ieee80211_send_auth(dev, ifsta, 3, elems.challenge - 2,
- elems.challenge_len + 2, 1);
-}
-
-static void ieee80211_send_addba_resp(struct net_device *dev, u8 *da, u16 tid,
- u8 dialog_token, u16 status, u16 policy,
- u16 buf_size, u16 timeout)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
- u16 capab;
-
- skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom + 1 +
- sizeof(mgmt->u.action.u.addba_resp));
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer "
- "for addba resp frame\n", dev->name);
- return;
- }
-
- skb_reserve(skb, local->hw.extra_tx_headroom);
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, da, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- if (sdata->vif.type == IEEE80211_IF_TYPE_AP)
- memcpy(mgmt->bssid, dev->dev_addr, ETH_ALEN);
- else
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_ACTION);
-
- skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_resp));
- mgmt->u.action.category = WLAN_CATEGORY_BACK;
- mgmt->u.action.u.addba_resp.action_code = WLAN_ACTION_ADDBA_RESP;
- mgmt->u.action.u.addba_resp.dialog_token = dialog_token;
-
- capab = (u16)(policy << 1); /* bit 1 aggregation policy */
- capab |= (u16)(tid << 2); /* bit 5:2 TID number */
- capab |= (u16)(buf_size << 6); /* bit 15:6 max size of aggregation */
-
- mgmt->u.action.u.addba_resp.capab = cpu_to_le16(capab);
- mgmt->u.action.u.addba_resp.timeout = cpu_to_le16(timeout);
- mgmt->u.action.u.addba_resp.status = cpu_to_le16(status);
-
- ieee80211_sta_tx(dev, skb, 0);
-
- return;
-}
-
-void ieee80211_send_addba_request(struct net_device *dev, const u8 *da,
- u16 tid, u8 dialog_token, u16 start_seq_num,
- u16 agg_size, u16 timeout)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
- u16 capab;
-
- skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom + 1 +
- sizeof(mgmt->u.action.u.addba_req));
-
-
- if (!skb) {
- printk(KERN_ERR "%s: failed to allocate buffer "
- "for addba request frame\n", dev->name);
- return;
- }
- skb_reserve(skb, local->hw.extra_tx_headroom);
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, da, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- if (sdata->vif.type == IEEE80211_IF_TYPE_AP)
- memcpy(mgmt->bssid, dev->dev_addr, ETH_ALEN);
- else
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
-
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_ACTION);
-
- skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_req));
-
- mgmt->u.action.category = WLAN_CATEGORY_BACK;
- mgmt->u.action.u.addba_req.action_code = WLAN_ACTION_ADDBA_REQ;
-
- mgmt->u.action.u.addba_req.dialog_token = dialog_token;
- capab = (u16)(1 << 1); /* bit 1 aggregation policy */
- capab |= (u16)(tid << 2); /* bit 5:2 TID number */
- capab |= (u16)(agg_size << 6); /* bit 15:6 max size of aggergation */
-
- mgmt->u.action.u.addba_req.capab = cpu_to_le16(capab);
-
- mgmt->u.action.u.addba_req.timeout = cpu_to_le16(timeout);
- mgmt->u.action.u.addba_req.start_seq_num =
- cpu_to_le16(start_seq_num << 4);
-
- ieee80211_sta_tx(dev, skb, 0);
-}
-
-static void ieee80211_sta_process_addba_request(struct net_device *dev,
- struct ieee80211_mgmt *mgmt,
- size_t len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- struct ieee80211_conf *conf = &hw->conf;
- struct sta_info *sta;
- struct tid_ampdu_rx *tid_agg_rx;
- u16 capab, tid, timeout, ba_policy, buf_size, start_seq_num, status;
- u8 dialog_token;
- int ret = -EOPNOTSUPP;
- DECLARE_MAC_BUF(mac);
-
- sta = sta_info_get(local, mgmt->sa);
- if (!sta)
- return;
-
- /* extract session parameters from addba request frame */
- dialog_token = mgmt->u.action.u.addba_req.dialog_token;
- timeout = le16_to_cpu(mgmt->u.action.u.addba_req.timeout);
- start_seq_num =
- le16_to_cpu(mgmt->u.action.u.addba_req.start_seq_num) >> 4;
-
- capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab);
- ba_policy = (capab & IEEE80211_ADDBA_PARAM_POLICY_MASK) >> 1;
- tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
- buf_size = (capab & IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK) >> 6;
-
- status = WLAN_STATUS_REQUEST_DECLINED;
-
- /* sanity check for incoming parameters:
- * check if configuration can support the BA policy
- * and if buffer size does not exceeds max value */
- if (((ba_policy != 1)
- && (!(conf->ht_conf.cap & IEEE80211_HT_CAP_DELAY_BA)))
- || (buf_size > IEEE80211_MAX_AMPDU_BUF)) {
- status = WLAN_STATUS_INVALID_QOS_PARAM;
-#ifdef CONFIG_MAC80211_HT_DEBUG
- if (net_ratelimit())
- printk(KERN_DEBUG "Block Ack Req with bad params from "
- "%s on tid %u. policy %d, buffer size %d\n",
- print_mac(mac, mgmt->sa), tid, ba_policy,
- buf_size);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
- goto end_no_lock;
- }
- /* determine default buffer size */
- if (buf_size == 0) {
- struct ieee80211_supported_band *sband;
-
- sband = local->hw.wiphy->bands[conf->channel->band];
- buf_size = IEEE80211_MIN_AMPDU_BUF;
- buf_size = buf_size << sband->ht_info.ampdu_factor;
- }
-
- tid_agg_rx = &sta->ampdu_mlme.tid_rx[tid];
-
- /* examine state machine */
- spin_lock_bh(&sta->ampdu_mlme.ampdu_rx);
-
- if (tid_agg_rx->state != HT_AGG_STATE_IDLE) {
-#ifdef CONFIG_MAC80211_HT_DEBUG
- if (net_ratelimit())
- printk(KERN_DEBUG "unexpected Block Ack Req from "
- "%s on tid %u\n",
- print_mac(mac, mgmt->sa), tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
- goto end;
- }
-
- /* prepare reordering buffer */
- tid_agg_rx->reorder_buf =
- kmalloc(buf_size * sizeof(struct sk_buf *), GFP_ATOMIC);
- if ((!tid_agg_rx->reorder_buf) && net_ratelimit()) {
- printk(KERN_ERR "can not allocate reordering buffer "
- "to tid %d\n", tid);
- goto end;
- }
- memset(tid_agg_rx->reorder_buf, 0,
- buf_size * sizeof(struct sk_buf *));
-
- if (local->ops->ampdu_action)
- ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_START,
- sta->addr, tid, &start_seq_num);
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "Rx A-MPDU on tid %d result %d", tid, ret);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-
- if (ret) {
- kfree(tid_agg_rx->reorder_buf);
- goto end;
- }
-
- /* change state and send addba resp */
- tid_agg_rx->state = HT_AGG_STATE_OPERATIONAL;
- tid_agg_rx->dialog_token = dialog_token;
- tid_agg_rx->ssn = start_seq_num;
- tid_agg_rx->head_seq_num = start_seq_num;
- tid_agg_rx->buf_size = buf_size;
- tid_agg_rx->timeout = timeout;
- tid_agg_rx->stored_mpdu_num = 0;
- status = WLAN_STATUS_SUCCESS;
-end:
- spin_unlock_bh(&sta->ampdu_mlme.ampdu_rx);
-
-end_no_lock:
- ieee80211_send_addba_resp(sta->dev, sta->addr, tid, dialog_token,
- status, 1, buf_size, timeout);
- sta_info_put(sta);
-}
-
-static void ieee80211_sta_process_addba_resp(struct net_device *dev,
- struct ieee80211_mgmt *mgmt,
- size_t len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- struct sta_info *sta;
- u16 capab;
- u16 tid;
- u8 *state;
-
- sta = sta_info_get(local, mgmt->sa);
- if (!sta)
- return;
-
- capab = le16_to_cpu(mgmt->u.action.u.addba_resp.capab);
- tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
-
- state = &sta->ampdu_mlme.tid_tx[tid].state;
-
- spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
-
- if (mgmt->u.action.u.addba_resp.dialog_token !=
- sta->ampdu_mlme.tid_tx[tid].dialog_token) {
- spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "wrong addBA response token, tid %d\n", tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
- sta_info_put(sta);
- return;
- }
-
- del_timer_sync(&sta->ampdu_mlme.tid_tx[tid].addba_resp_timer);
-#ifdef CONFIG_MAC80211_HT_DEBUG
- printk(KERN_DEBUG "switched off addBA timer for tid %d \n", tid);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
- if (le16_to_cpu(mgmt->u.action.u.addba_resp.status)
- == WLAN_STATUS_SUCCESS) {
- if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
- spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
- printk(KERN_DEBUG "state not HT_ADDBA_REQUESTED_MSK:"
- "%d\n", *state);
- sta_info_put(sta);
- return;
- }
-
- if (*state & HT_ADDBA_RECEIVED_MSK)
- printk(KERN_DEBUG "double addBA response\n");
-
- *state |= HT_ADDBA_RECEIVED_MSK;
- sta->ampdu_mlme.tid_tx[tid].addba_req_num = 0;
-
- if (*state == HT_AGG_STATE_OPERATIONAL) {
- printk(KERN_DEBUG "Aggregation on for tid %d \n", tid);
- ieee80211_wake_queue(hw, sta->tid_to_tx_q[tid]);
- }
-
- spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
- printk(KERN_DEBUG "recipient accepted agg: tid %d \n", tid);
- } else {
- printk(KERN_DEBUG "recipient rejected agg: tid %d \n", tid);
-
- sta->ampdu_mlme.tid_tx[tid].addba_req_num++;
- /* this will allow the state check in stop_BA_session */
- *state = HT_AGG_STATE_OPERATIONAL;
- spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
- ieee80211_stop_tx_ba_session(hw, sta->addr, tid,
- WLAN_BACK_INITIATOR);
- }
- sta_info_put(sta);
-}
-
-void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid,
- u16 initiator, u16 reason_code)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
- u16 params;
-
- skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom + 1 +
- sizeof(mgmt->u.action.u.delba));
-
- if (!skb) {
- printk(KERN_ERR "%s: failed to allocate buffer "
- "for delba frame\n", dev->name);
- return;
- }
-
- skb_reserve(skb, local->hw.extra_tx_headroom);
- mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
- memset(mgmt, 0, 24);
- memcpy(mgmt->da, da, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- if (sdata->vif.type == IEEE80211_IF_TYPE_AP)
- memcpy(mgmt->bssid, dev->dev_addr, ETH_ALEN);
- else
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_ACTION);
-
- skb_put(skb, 1 + sizeof(mgmt->u.action.u.delba));
-
- mgmt->u.action.category = WLAN_CATEGORY_BACK;
- mgmt->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
- params = (u16)(initiator << 11); /* bit 11 initiator */
- params |= (u16)(tid << 12); /* bit 15:12 TID number */
-
- mgmt->u.action.u.delba.params = cpu_to_le16(params);
- mgmt->u.action.u.delba.reason_code = cpu_to_le16(reason_code);
-
- ieee80211_sta_tx(dev, skb, 0);
-}
-
-void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *ra, u16 tid,
- u16 initiator, u16 reason)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- struct sta_info *sta;
- int ret, i;
-
- sta = sta_info_get(local, ra);
- if (!sta)
- return;
-
- /* check if TID is in operational state */
- spin_lock_bh(&sta->ampdu_mlme.ampdu_rx);
- if (sta->ampdu_mlme.tid_rx[tid].state
- != HT_AGG_STATE_OPERATIONAL) {
- spin_unlock_bh(&sta->ampdu_mlme.ampdu_rx);
- sta_info_put(sta);
- return;
- }
- sta->ampdu_mlme.tid_rx[tid].state =
- HT_AGG_STATE_REQ_STOP_BA_MSK |
- (initiator << HT_AGG_STATE_INITIATOR_SHIFT);
- spin_unlock_bh(&sta->ampdu_mlme.ampdu_rx);
-
- /* stop HW Rx aggregation. ampdu_action existence
- * already verified in session init so we add the BUG_ON */
- BUG_ON(!local->ops->ampdu_action);
-
- ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_STOP,
- ra, tid, NULL);
- if (ret)
- printk(KERN_DEBUG "HW problem - can not stop rx "
- "aggergation for tid %d\n", tid);
-
- /* shutdown timer has not expired */
- if (initiator != WLAN_BACK_TIMER)
- del_timer_sync(&sta->ampdu_mlme.tid_rx[tid].
- session_timer);
-
- /* check if this is a self generated aggregation halt */
- if (initiator == WLAN_BACK_RECIPIENT || initiator == WLAN_BACK_TIMER)
- ieee80211_send_delba(dev, ra, tid, 0, reason);
-
- /* free the reordering buffer */
- for (i = 0; i < sta->ampdu_mlme.tid_rx[tid].buf_size; i++) {
- if (sta->ampdu_mlme.tid_rx[tid].reorder_buf[i]) {
- /* release the reordered frames */
- dev_kfree_skb(sta->ampdu_mlme.tid_rx[tid].reorder_buf[i]);
- sta->ampdu_mlme.tid_rx[tid].stored_mpdu_num--;
- sta->ampdu_mlme.tid_rx[tid].reorder_buf[i] = NULL;
- }
- }
- kfree(sta->ampdu_mlme.tid_rx[tid].reorder_buf);
-
- sta->ampdu_mlme.tid_rx[tid].state = HT_AGG_STATE_IDLE;
- sta_info_put(sta);
-}
-
-
-static void ieee80211_sta_process_delba(struct net_device *dev,
- struct ieee80211_mgmt *mgmt, size_t len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
- u16 tid, params;
- u16 initiator;
- DECLARE_MAC_BUF(mac);
-
- sta = sta_info_get(local, mgmt->sa);
- if (!sta)
- return;
-
- params = le16_to_cpu(mgmt->u.action.u.delba.params);
- tid = (params & IEEE80211_DELBA_PARAM_TID_MASK) >> 12;
- initiator = (params & IEEE80211_DELBA_PARAM_INITIATOR_MASK) >> 11;
-
-#ifdef CONFIG_MAC80211_HT_DEBUG
- if (net_ratelimit())
- printk(KERN_DEBUG "delba from %s (%s) tid %d reason code %d\n",
- print_mac(mac, mgmt->sa),
- initiator ? "recipient" : "initiator", tid,
- mgmt->u.action.u.delba.reason_code);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
-
- if (initiator == WLAN_BACK_INITIATOR)
- ieee80211_sta_stop_rx_ba_session(dev, sta->addr, tid,
- WLAN_BACK_INITIATOR, 0);
- else { /* WLAN_BACK_RECIPIENT */
- spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
- sta->ampdu_mlme.tid_tx[tid].state =
- HT_AGG_STATE_OPERATIONAL;
- spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
- ieee80211_stop_tx_ba_session(&local->hw, sta->addr, tid,
- WLAN_BACK_RECIPIENT);
- }
- sta_info_put(sta);
-}
-
-/*
- * After sending add Block Ack request we activated a timer until
- * add Block Ack response will arrive from the recipient.
- * If this timer expires sta_addba_resp_timer_expired will be executed.
- */
-void sta_addba_resp_timer_expired(unsigned long data)
-{
- /* not an elegant detour, but there is no choice as the timer passes
- * only one argument, and both sta_info and TID are needed, so init
- * flow in sta_info_add gives the TID as data, while the timer_to_id
- * array gives the sta through container_of */
- u16 tid = *(int *)data;
- struct sta_info *temp_sta = container_of((void *)data,
- struct sta_info, timer_to_tid[tid]);
-
- struct ieee80211_local *local = temp_sta->local;
- struct ieee80211_hw *hw = &local->hw;
- struct sta_info *sta;
- u8 *state;
-
- sta = sta_info_get(local, temp_sta->addr);
- if (!sta)
- return;
-
- state = &sta->ampdu_mlme.tid_tx[tid].state;
- /* check if the TID waits for addBA response */
- spin_lock_bh(&sta->ampdu_mlme.ampdu_tx);
- if (!(*state & HT_ADDBA_REQUESTED_MSK)) {
- spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
- *state = HT_AGG_STATE_IDLE;
- printk(KERN_DEBUG "timer expired on tid %d but we are not "
- "expecting addBA response there", tid);
- goto timer_expired_exit;
- }
-
- printk(KERN_DEBUG "addBA response timer expired on tid %d\n", tid);
-
- /* go through the state check in stop_BA_session */
- *state = HT_AGG_STATE_OPERATIONAL;
- spin_unlock_bh(&sta->ampdu_mlme.ampdu_tx);
- ieee80211_stop_tx_ba_session(hw, temp_sta->addr, tid,
- WLAN_BACK_INITIATOR);
-
-timer_expired_exit:
- sta_info_put(sta);
-}
-
-/*
- * After receiving Block Ack Request (BAR) we activated a
- * timer after each frame arrives from the originator.
- * if this timer expires ieee80211_sta_stop_rx_ba_session will be executed.
- */
-void sta_rx_agg_session_timer_expired(unsigned long data)
-{
- /* not an elegant detour, but there is no choice as the timer passes
- * only one argument, and verious sta_info are needed here, so init
- * flow in sta_info_add gives the TID as data, while the timer_to_id
- * array gives the sta through container_of */
- u8 *ptid = (u8 *)data;
- u8 *timer_to_id = ptid - *ptid;
- struct sta_info *sta = container_of(timer_to_id, struct sta_info,
- timer_to_tid[0]);
-
- printk(KERN_DEBUG "rx session timer expired on tid %d\n", (u16)*ptid);
- ieee80211_sta_stop_rx_ba_session(sta->dev, sta->addr, (u16)*ptid,
- WLAN_BACK_TIMER,
- WLAN_REASON_QSTA_TIMEOUT);
-}
-
-
-static void ieee80211_rx_mgmt_auth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- u16 auth_alg, auth_transaction, status_code;
- DECLARE_MAC_BUF(mac);
-
- if (ifsta->state != IEEE80211_AUTHENTICATE &&
- sdata->vif.type != IEEE80211_IF_TYPE_IBSS) {
- printk(KERN_DEBUG "%s: authentication frame received from "
- "%s, but not in authenticate state - ignored\n",
- dev->name, print_mac(mac, mgmt->sa));
- return;
- }
-
- if (len < 24 + 6) {
- printk(KERN_DEBUG "%s: too short (%zd) authentication frame "
- "received from %s - ignored\n",
- dev->name, len, print_mac(mac, mgmt->sa));
- return;
- }
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
- memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
- printk(KERN_DEBUG "%s: authentication frame received from "
- "unknown AP (SA=%s BSSID=%s) - "
- "ignored\n", dev->name, print_mac(mac, mgmt->sa),
- print_mac(mac, mgmt->bssid));
- return;
- }
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
- memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0) {
- printk(KERN_DEBUG "%s: authentication frame received from "
- "unknown BSSID (SA=%s BSSID=%s) - "
- "ignored\n", dev->name, print_mac(mac, mgmt->sa),
- print_mac(mac, mgmt->bssid));
- return;
- }
-
- auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg);
- auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction);
- status_code = le16_to_cpu(mgmt->u.auth.status_code);
-
- printk(KERN_DEBUG "%s: RX authentication from %s (alg=%d "
- "transaction=%d status=%d)\n",
- dev->name, print_mac(mac, mgmt->sa), auth_alg,
- auth_transaction, status_code);
-
- if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
- /* IEEE 802.11 standard does not require authentication in IBSS
- * networks and most implementations do not seem to use it.
- * However, try to reply to authentication attempts if someone
- * has actually implemented this.
- * TODO: Could implement shared key authentication. */
- if (auth_alg != WLAN_AUTH_OPEN || auth_transaction != 1) {
- printk(KERN_DEBUG "%s: unexpected IBSS authentication "
- "frame (alg=%d transaction=%d)\n",
- dev->name, auth_alg, auth_transaction);
- return;
- }
- ieee80211_send_auth(dev, ifsta, 2, NULL, 0, 0);
- }
-
- if (auth_alg != ifsta->auth_alg ||
- auth_transaction != ifsta->auth_transaction) {
- printk(KERN_DEBUG "%s: unexpected authentication frame "
- "(alg=%d transaction=%d)\n",
- dev->name, auth_alg, auth_transaction);
- return;
- }
-
- if (status_code != WLAN_STATUS_SUCCESS) {
- printk(KERN_DEBUG "%s: AP denied authentication (auth_alg=%d "
- "code=%d)\n", dev->name, ifsta->auth_alg, status_code);
- if (status_code == WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG) {
- u8 algs[3];
- const int num_algs = ARRAY_SIZE(algs);
- int i, pos;
- algs[0] = algs[1] = algs[2] = 0xff;
- if (ifsta->auth_algs & IEEE80211_AUTH_ALG_OPEN)
- algs[0] = WLAN_AUTH_OPEN;
- if (ifsta->auth_algs & IEEE80211_AUTH_ALG_SHARED_KEY)
- algs[1] = WLAN_AUTH_SHARED_KEY;
- if (ifsta->auth_algs & IEEE80211_AUTH_ALG_LEAP)
- algs[2] = WLAN_AUTH_LEAP;
- if (ifsta->auth_alg == WLAN_AUTH_OPEN)
- pos = 0;
- else if (ifsta->auth_alg == WLAN_AUTH_SHARED_KEY)
- pos = 1;
- else
- pos = 2;
- for (i = 0; i < num_algs; i++) {
- pos++;
- if (pos >= num_algs)
- pos = 0;
- if (algs[pos] == ifsta->auth_alg ||
- algs[pos] == 0xff)
- continue;
- if (algs[pos] == WLAN_AUTH_SHARED_KEY &&
- !ieee80211_sta_wep_configured(dev))
- continue;
- ifsta->auth_alg = algs[pos];
- printk(KERN_DEBUG "%s: set auth_alg=%d for "
- "next try\n",
- dev->name, ifsta->auth_alg);
- break;
- }
- }
- return;
- }
-
- switch (ifsta->auth_alg) {
- case WLAN_AUTH_OPEN:
- case WLAN_AUTH_LEAP:
- ieee80211_auth_completed(dev, ifsta);
- break;
- case WLAN_AUTH_SHARED_KEY:
- if (ifsta->auth_transaction == 4)
- ieee80211_auth_completed(dev, ifsta);
- else
- ieee80211_auth_challenge(dev, ifsta, mgmt, len);
- break;
- }
-}
-
-
-static void ieee80211_rx_mgmt_deauth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len)
-{
- u16 reason_code;
- DECLARE_MAC_BUF(mac);
-
- if (len < 24 + 2) {
- printk(KERN_DEBUG "%s: too short (%zd) deauthentication frame "
- "received from %s - ignored\n",
- dev->name, len, print_mac(mac, mgmt->sa));
- return;
- }
-
- if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
- printk(KERN_DEBUG "%s: deauthentication frame received from "
- "unknown AP (SA=%s BSSID=%s) - "
- "ignored\n", dev->name, print_mac(mac, mgmt->sa),
- print_mac(mac, mgmt->bssid));
- return;
- }
-
- reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
-
- printk(KERN_DEBUG "%s: RX deauthentication from %s"
- " (reason=%d)\n",
- dev->name, print_mac(mac, mgmt->sa), reason_code);
-
- if (ifsta->flags & IEEE80211_STA_AUTHENTICATED) {
- printk(KERN_DEBUG "%s: deauthenticated\n", dev->name);
- }
-
- if (ifsta->state == IEEE80211_AUTHENTICATE ||
- ifsta->state == IEEE80211_ASSOCIATE ||
- ifsta->state == IEEE80211_ASSOCIATED) {
- ifsta->state = IEEE80211_AUTHENTICATE;
- mod_timer(&ifsta->timer, jiffies +
- IEEE80211_RETRY_AUTH_INTERVAL);
- }
-
- ieee80211_set_disassoc(dev, ifsta, 1);
- ifsta->flags &= ~IEEE80211_STA_AUTHENTICATED;
-}
-
-
-static void ieee80211_rx_mgmt_disassoc(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len)
-{
- u16 reason_code;
- DECLARE_MAC_BUF(mac);
-
- if (len < 24 + 2) {
- printk(KERN_DEBUG "%s: too short (%zd) disassociation frame "
- "received from %s - ignored\n",
- dev->name, len, print_mac(mac, mgmt->sa));
- return;
- }
-
- if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
- printk(KERN_DEBUG "%s: disassociation frame received from "
- "unknown AP (SA=%s BSSID=%s) - "
- "ignored\n", dev->name, print_mac(mac, mgmt->sa),
- print_mac(mac, mgmt->bssid));
- return;
- }
-
- reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
-
- printk(KERN_DEBUG "%s: RX disassociation from %s"
- " (reason=%d)\n",
- dev->name, print_mac(mac, mgmt->sa), reason_code);
-
- if (ifsta->flags & IEEE80211_STA_ASSOCIATED)
- printk(KERN_DEBUG "%s: disassociated\n", dev->name);
-
- if (ifsta->state == IEEE80211_ASSOCIATED) {
- ifsta->state = IEEE80211_ASSOCIATE;
- mod_timer(&ifsta->timer, jiffies +
- IEEE80211_RETRY_AUTH_INTERVAL);
- }
-
- ieee80211_set_disassoc(dev, ifsta, 0);
-}
-
-
-static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- int reassoc)
-{
- struct ieee80211_local *local = sdata->local;
- struct net_device *dev = sdata->dev;
- struct ieee80211_supported_band *sband;
- struct sta_info *sta;
- u64 rates, basic_rates;
- u16 capab_info, status_code, aid;
- struct ieee802_11_elems elems;
- struct ieee80211_bss_conf *bss_conf = &sdata->bss_conf;
- u8 *pos;
- int i, j;
- DECLARE_MAC_BUF(mac);
- bool have_higher_than_11mbit = false;
-
- /* AssocResp and ReassocResp have identical structure, so process both
- * of them in this function. */
-
- if (ifsta->state != IEEE80211_ASSOCIATE) {
- printk(KERN_DEBUG "%s: association frame received from "
- "%s, but not in associate state - ignored\n",
- dev->name, print_mac(mac, mgmt->sa));
- return;
- }
-
- if (len < 24 + 6) {
- printk(KERN_DEBUG "%s: too short (%zd) association frame "
- "received from %s - ignored\n",
- dev->name, len, print_mac(mac, mgmt->sa));
- return;
- }
-
- if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
- printk(KERN_DEBUG "%s: association frame received from "
- "unknown AP (SA=%s BSSID=%s) - "
- "ignored\n", dev->name, print_mac(mac, mgmt->sa),
- print_mac(mac, mgmt->bssid));
- return;
- }
-
- capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info);
- status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code);
- aid = le16_to_cpu(mgmt->u.assoc_resp.aid);
-
- printk(KERN_DEBUG "%s: RX %sssocResp from %s (capab=0x%x "
- "status=%d aid=%d)\n",
- dev->name, reassoc ? "Rea" : "A", print_mac(mac, mgmt->sa),
- capab_info, status_code, (u16)(aid & ~(BIT(15) | BIT(14))));
-
- if (status_code != WLAN_STATUS_SUCCESS) {
- printk(KERN_DEBUG "%s: AP denied association (code=%d)\n",
- dev->name, status_code);
- /* if this was a reassociation, ensure we try a "full"
- * association next time. This works around some broken APs
- * which do not correctly reject reassociation requests. */
- ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
- return;
- }
-
- if ((aid & (BIT(15) | BIT(14))) != (BIT(15) | BIT(14)))
- printk(KERN_DEBUG "%s: invalid aid value %d; bits 15:14 not "
- "set\n", dev->name, aid);
- aid &= ~(BIT(15) | BIT(14));
-
- pos = mgmt->u.assoc_resp.variable;
- ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
-
- if (!elems.supp_rates) {
- printk(KERN_DEBUG "%s: no SuppRates element in AssocResp\n",
- dev->name);
- return;
- }
-
- printk(KERN_DEBUG "%s: associated\n", dev->name);
- ifsta->aid = aid;
- ifsta->ap_capab = capab_info;
-
- kfree(ifsta->assocresp_ies);
- ifsta->assocresp_ies_len = len - (pos - (u8 *) mgmt);
- ifsta->assocresp_ies = kmalloc(ifsta->assocresp_ies_len, GFP_KERNEL);
- if (ifsta->assocresp_ies)
- memcpy(ifsta->assocresp_ies, pos, ifsta->assocresp_ies_len);
-
- /* Add STA entry for the AP */
- sta = sta_info_get(local, ifsta->bssid);
- if (!sta) {
- struct ieee80211_sta_bss *bss;
- sta = sta_info_add(local, dev, ifsta->bssid, GFP_KERNEL);
- if (!sta) {
- printk(KERN_DEBUG "%s: failed to add STA entry for the"
- " AP\n", dev->name);
- return;
- }
- bss = ieee80211_rx_bss_get(dev, ifsta->bssid,
- local->hw.conf.channel->center_freq,
- ifsta->ssid, ifsta->ssid_len);
- if (bss) {
- sta->last_rssi = bss->rssi;
- sta->last_signal = bss->signal;
- sta->last_noise = bss->noise;
- ieee80211_rx_bss_put(dev, bss);
- }
- }
-
- sta->dev = dev;
- sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC | WLAN_STA_ASSOC_AP |
- WLAN_STA_AUTHORIZED;
-
- rates = 0;
- basic_rates = 0;
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
- for (i = 0; i < elems.supp_rates_len; i++) {
- int rate = (elems.supp_rates[i] & 0x7f) * 5;
-
- if (rate > 110)
- have_higher_than_11mbit = true;
-
- for (j = 0; j < sband->n_bitrates; j++) {
- if (sband->bitrates[j].bitrate == rate)
- rates |= BIT(j);
- if (elems.supp_rates[i] & 0x80)
- basic_rates |= BIT(j);
- }
- }
-
- for (i = 0; i < elems.ext_supp_rates_len; i++) {
- int rate = (elems.ext_supp_rates[i] & 0x7f) * 5;
-
- if (rate > 110)
- have_higher_than_11mbit = true;
-
- for (j = 0; j < sband->n_bitrates; j++) {
- if (sband->bitrates[j].bitrate == rate)
- rates |= BIT(j);
- if (elems.ext_supp_rates[i] & 0x80)
- basic_rates |= BIT(j);
- }
- }
-
- sta->supp_rates[local->hw.conf.channel->band] = rates;
- sdata->basic_rates = basic_rates;
-
- /* cf. IEEE 802.11 9.2.12 */
- if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
- have_higher_than_11mbit)
- sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
- else
- sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
-
- if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param &&
- local->ops->conf_ht) {
- struct ieee80211_ht_bss_info bss_info;
-
- ieee80211_ht_cap_ie_to_ht_info(
- (struct ieee80211_ht_cap *)
- elems.ht_cap_elem, &sta->ht_info);
- ieee80211_ht_addt_info_ie_to_ht_bss_info(
- (struct ieee80211_ht_addt_info *)
- elems.ht_info_elem, &bss_info);
- ieee80211_hw_config_ht(local, 1, &sta->ht_info, &bss_info);
- }
-
- rate_control_rate_init(sta, local);
-
- if (elems.wmm_param && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
- sta->flags |= WLAN_STA_WME;
- ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param,
- elems.wmm_param_len);
- }
-
- /* set AID, ieee80211_set_associated() will tell the driver */
- bss_conf->aid = aid;
- ieee80211_set_associated(dev, ifsta, 1);
-
- sta_info_put(sta);
-
- ieee80211_associated(dev, ifsta);
-}
-
-
-/* Caller must hold local->sta_bss_lock */
-static void __ieee80211_rx_bss_hash_add(struct net_device *dev,
- struct ieee80211_sta_bss *bss)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- bss->hnext = local->sta_bss_hash[STA_HASH(bss->bssid)];
- local->sta_bss_hash[STA_HASH(bss->bssid)] = bss;
-}
-
-
-/* Caller must hold local->sta_bss_lock */
-static void __ieee80211_rx_bss_hash_del(struct net_device *dev,
- struct ieee80211_sta_bss *bss)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sta_bss *b, *prev = NULL;
- b = local->sta_bss_hash[STA_HASH(bss->bssid)];
- while (b) {
- if (b == bss) {
- if (!prev)
- local->sta_bss_hash[STA_HASH(bss->bssid)] =
- bss->hnext;
- else
- prev->hnext = bss->hnext;
- break;
- }
- prev = b;
- b = b->hnext;
- }
-}
-
-
-static struct ieee80211_sta_bss *
-ieee80211_rx_bss_add(struct net_device *dev, u8 *bssid, int freq,
- u8 *ssid, u8 ssid_len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sta_bss *bss;
-
- bss = kzalloc(sizeof(*bss), GFP_ATOMIC);
- if (!bss)
- return NULL;
- atomic_inc(&bss->users);
- atomic_inc(&bss->users);
- memcpy(bss->bssid, bssid, ETH_ALEN);
- bss->freq = freq;
- if (ssid && ssid_len <= IEEE80211_MAX_SSID_LEN) {
- memcpy(bss->ssid, ssid, ssid_len);
- bss->ssid_len = ssid_len;
- }
-
- spin_lock_bh(&local->sta_bss_lock);
- /* TODO: order by RSSI? */
- list_add_tail(&bss->list, &local->sta_bss_list);
- __ieee80211_rx_bss_hash_add(dev, bss);
- spin_unlock_bh(&local->sta_bss_lock);
- return bss;
-}
-
-
-static struct ieee80211_sta_bss *
-ieee80211_rx_bss_get(struct net_device *dev, u8 *bssid, int freq,
- u8 *ssid, u8 ssid_len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sta_bss *bss;
-
- spin_lock_bh(&local->sta_bss_lock);
- bss = local->sta_bss_hash[STA_HASH(bssid)];
- while (bss) {
- if (!memcmp(bss->bssid, bssid, ETH_ALEN) &&
- bss->freq == freq &&
- bss->ssid_len == ssid_len &&
- (ssid_len == 0 || !memcmp(bss->ssid, ssid, ssid_len))) {
- atomic_inc(&bss->users);
- break;
- }
- bss = bss->hnext;
- }
- spin_unlock_bh(&local->sta_bss_lock);
- return bss;
-}
-
-
-static void ieee80211_rx_bss_free(struct ieee80211_sta_bss *bss)
-{
- kfree(bss->wpa_ie);
- kfree(bss->rsn_ie);
- kfree(bss->wmm_ie);
- kfree(bss->ht_ie);
- kfree(bss);
-}
-
-
-static void ieee80211_rx_bss_put(struct net_device *dev,
- struct ieee80211_sta_bss *bss)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- if (!atomic_dec_and_test(&bss->users))
- return;
-
- spin_lock_bh(&local->sta_bss_lock);
- __ieee80211_rx_bss_hash_del(dev, bss);
- list_del(&bss->list);
- spin_unlock_bh(&local->sta_bss_lock);
- ieee80211_rx_bss_free(bss);
-}
-
-
-void ieee80211_rx_bss_list_init(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- spin_lock_init(&local->sta_bss_lock);
- INIT_LIST_HEAD(&local->sta_bss_list);
-}
-
-
-void ieee80211_rx_bss_list_deinit(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sta_bss *bss, *tmp;
-
- list_for_each_entry_safe(bss, tmp, &local->sta_bss_list, list)
- ieee80211_rx_bss_put(dev, bss);
-}
-
-
-static void ieee80211_rx_bss_info(struct net_device *dev,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status,
- int beacon)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee802_11_elems elems;
- size_t baselen;
- int freq, clen;
- struct ieee80211_sta_bss *bss;
- struct sta_info *sta;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- u64 timestamp;
- DECLARE_MAC_BUF(mac);
- DECLARE_MAC_BUF(mac2);
-
- if (!beacon && memcmp(mgmt->da, dev->dev_addr, ETH_ALEN))
- return; /* ignore ProbeResp to foreign address */
-
-#if 0
- printk(KERN_DEBUG "%s: RX %s from %s to %s\n",
- dev->name, beacon ? "Beacon" : "Probe Response",
- print_mac(mac, mgmt->sa), print_mac(mac2, mgmt->da));
-#endif
-
- baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt;
- if (baselen > len)
- return;
-
- timestamp = le64_to_cpu(mgmt->u.beacon.timestamp);
-
- if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && beacon &&
- memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0) {
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- static unsigned long last_tsf_debug = 0;
- u64 tsf;
- if (local->ops->get_tsf)
- tsf = local->ops->get_tsf(local_to_hw(local));
- else
- tsf = -1LLU;
- if (time_after(jiffies, last_tsf_debug + 5 * HZ)) {
- printk(KERN_DEBUG "RX beacon SA=%s BSSID="
- "%s TSF=0x%llx BCN=0x%llx diff=%lld "
- "@%lu\n",
- print_mac(mac, mgmt->sa), print_mac(mac2, mgmt->bssid),
- (unsigned long long)tsf,
- (unsigned long long)timestamp,
- (unsigned long long)(tsf - timestamp),
- jiffies);
- last_tsf_debug = jiffies;
- }
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
- }
-
- ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
-
- if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && elems.supp_rates &&
- memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0 &&
- (sta = sta_info_get(local, mgmt->sa))) {
- struct ieee80211_supported_band *sband;
- struct ieee80211_rate *bitrates;
- size_t num_rates;
- u64 supp_rates, prev_rates;
- int i, j;
-
- sband = local->hw.wiphy->bands[rx_status->band];
-
- if (!sband) {
- WARN_ON(1);
- sband = local->hw.wiphy->bands[
- local->hw.conf.channel->band];
- }
-
- bitrates = sband->bitrates;
- num_rates = sband->n_bitrates;
-
- supp_rates = 0;
- for (i = 0; i < elems.supp_rates_len +
- elems.ext_supp_rates_len; i++) {
- u8 rate = 0;
- int own_rate;
- if (i < elems.supp_rates_len)
- rate = elems.supp_rates[i];
- else if (elems.ext_supp_rates)
- rate = elems.ext_supp_rates
- [i - elems.supp_rates_len];
- own_rate = 5 * (rate & 0x7f);
- for (j = 0; j < num_rates; j++)
- if (bitrates[j].bitrate == own_rate)
- supp_rates |= BIT(j);
- }
-
- prev_rates = sta->supp_rates[rx_status->band];
- sta->supp_rates[rx_status->band] &= supp_rates;
- if (sta->supp_rates[rx_status->band] == 0) {
- /* No matching rates - this should not really happen.
- * Make sure that at least one rate is marked
- * supported to avoid issues with TX rate ctrl. */
- sta->supp_rates[rx_status->band] =
- sdata->u.sta.supp_rates_bits[rx_status->band];
- }
- if (sta->supp_rates[rx_status->band] != prev_rates) {
- printk(KERN_DEBUG "%s: updated supp_rates set for "
- "%s based on beacon info (0x%llx & 0x%llx -> "
- "0x%llx)\n",
- dev->name, print_mac(mac, sta->addr),
- (unsigned long long) prev_rates,
- (unsigned long long) supp_rates,
- (unsigned long long) sta->supp_rates[rx_status->band]);
- }
- sta_info_put(sta);
- }
-
- if (!elems.ssid)
- return;
-
- if (elems.ds_params && elems.ds_params_len == 1)
- freq = ieee80211_channel_to_frequency(elems.ds_params[0]);
- else
- freq = rx_status->freq;
-
- bss = ieee80211_rx_bss_get(dev, mgmt->bssid, freq,
- elems.ssid, elems.ssid_len);
- if (!bss) {
- bss = ieee80211_rx_bss_add(dev, mgmt->bssid, freq,
- elems.ssid, elems.ssid_len);
- if (!bss)
- return;
- } else {
-#if 0
- /* TODO: order by RSSI? */
- spin_lock_bh(&local->sta_bss_lock);
- list_move_tail(&bss->list, &local->sta_bss_list);
- spin_unlock_bh(&local->sta_bss_lock);
-#endif
- }
-
- bss->band = rx_status->band;
-
- if (bss->probe_resp && beacon) {
- /* Do not allow beacon to override data from Probe Response. */
- ieee80211_rx_bss_put(dev, bss);
- return;
- }
-
- /* save the ERP value so that it is available at association time */
- if (elems.erp_info && elems.erp_info_len >= 1) {
- bss->erp_value = elems.erp_info[0];
- bss->has_erp_value = 1;
- }
-
- bss->beacon_int = le16_to_cpu(mgmt->u.beacon.beacon_int);
- bss->capability = le16_to_cpu(mgmt->u.beacon.capab_info);
-
- bss->supp_rates_len = 0;
- if (elems.supp_rates) {
- clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
- if (clen > elems.supp_rates_len)
- clen = elems.supp_rates_len;
- memcpy(&bss->supp_rates[bss->supp_rates_len], elems.supp_rates,
- clen);
- bss->supp_rates_len += clen;
- }
- if (elems.ext_supp_rates) {
- clen = IEEE80211_MAX_SUPP_RATES - bss->supp_rates_len;
- if (clen > elems.ext_supp_rates_len)
- clen = elems.ext_supp_rates_len;
- memcpy(&bss->supp_rates[bss->supp_rates_len],
- elems.ext_supp_rates, clen);
- bss->supp_rates_len += clen;
- }
-
- if (elems.wpa &&
- (!bss->wpa_ie || bss->wpa_ie_len != elems.wpa_len ||
- memcmp(bss->wpa_ie, elems.wpa, elems.wpa_len))) {
- kfree(bss->wpa_ie);
- bss->wpa_ie = kmalloc(elems.wpa_len + 2, GFP_ATOMIC);
- if (bss->wpa_ie) {
- memcpy(bss->wpa_ie, elems.wpa - 2, elems.wpa_len + 2);
- bss->wpa_ie_len = elems.wpa_len + 2;
- } else
- bss->wpa_ie_len = 0;
- } else if (!elems.wpa && bss->wpa_ie) {
- kfree(bss->wpa_ie);
- bss->wpa_ie = NULL;
- bss->wpa_ie_len = 0;
- }
-
- if (elems.rsn &&
- (!bss->rsn_ie || bss->rsn_ie_len != elems.rsn_len ||
- memcmp(bss->rsn_ie, elems.rsn, elems.rsn_len))) {
- kfree(bss->rsn_ie);
- bss->rsn_ie = kmalloc(elems.rsn_len + 2, GFP_ATOMIC);
- if (bss->rsn_ie) {
- memcpy(bss->rsn_ie, elems.rsn - 2, elems.rsn_len + 2);
- bss->rsn_ie_len = elems.rsn_len + 2;
- } else
- bss->rsn_ie_len = 0;
- } else if (!elems.rsn && bss->rsn_ie) {
- kfree(bss->rsn_ie);
- bss->rsn_ie = NULL;
- bss->rsn_ie_len = 0;
- }
-
- if (elems.wmm_param &&
- (!bss->wmm_ie || bss->wmm_ie_len != elems.wmm_param_len ||
- memcmp(bss->wmm_ie, elems.wmm_param, elems.wmm_param_len))) {
- kfree(bss->wmm_ie);
- bss->wmm_ie = kmalloc(elems.wmm_param_len + 2, GFP_ATOMIC);
- if (bss->wmm_ie) {
- memcpy(bss->wmm_ie, elems.wmm_param - 2,
- elems.wmm_param_len + 2);
- bss->wmm_ie_len = elems.wmm_param_len + 2;
- } else
- bss->wmm_ie_len = 0;
- } else if (!elems.wmm_param && bss->wmm_ie) {
- kfree(bss->wmm_ie);
- bss->wmm_ie = NULL;
- bss->wmm_ie_len = 0;
- }
- if (elems.ht_cap_elem &&
- (!bss->ht_ie || bss->ht_ie_len != elems.ht_cap_elem_len ||
- memcmp(bss->ht_ie, elems.ht_cap_elem, elems.ht_cap_elem_len))) {
- kfree(bss->ht_ie);
- bss->ht_ie = kmalloc(elems.ht_cap_elem_len + 2, GFP_ATOMIC);
- if (bss->ht_ie) {
- memcpy(bss->ht_ie, elems.ht_cap_elem - 2,
- elems.ht_cap_elem_len + 2);
- bss->ht_ie_len = elems.ht_cap_elem_len + 2;
- } else
- bss->ht_ie_len = 0;
- } else if (!elems.ht_cap_elem && bss->ht_ie) {
- kfree(bss->ht_ie);
- bss->ht_ie = NULL;
- bss->ht_ie_len = 0;
- }
-
- bss->timestamp = timestamp;
- bss->last_update = jiffies;
- bss->rssi = rx_status->ssi;
- bss->signal = rx_status->signal;
- bss->noise = rx_status->noise;
- if (!beacon)
- bss->probe_resp++;
- ieee80211_rx_bss_put(dev, bss);
-}
-
-
-static void ieee80211_rx_mgmt_probe_resp(struct net_device *dev,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- ieee80211_rx_bss_info(dev, mgmt, len, rx_status, 0);
-}
-
-
-static void ieee80211_rx_mgmt_beacon(struct net_device *dev,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_if_sta *ifsta;
- size_t baselen;
- struct ieee802_11_elems elems;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_conf *conf = &local->hw.conf;
- u32 changed = 0;
-
- ieee80211_rx_bss_info(dev, mgmt, len, rx_status, 1);
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
- return;
- ifsta = &sdata->u.sta;
-
- if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED) ||
- memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0)
- return;
-
- /* Process beacon from the current BSS */
- baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt;
- if (baselen > len)
- return;
-
- ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
-
- if (elems.erp_info && elems.erp_info_len >= 1)
- changed |= ieee80211_handle_erp_ie(sdata, elems.erp_info[0]);
-
- if (elems.ht_cap_elem && elems.ht_info_elem &&
- elems.wmm_param && local->ops->conf_ht &&
- conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) {
- struct ieee80211_ht_bss_info bss_info;
-
- ieee80211_ht_addt_info_ie_to_ht_bss_info(
- (struct ieee80211_ht_addt_info *)
- elems.ht_info_elem, &bss_info);
- /* check if AP changed bss inforamation */
- if ((conf->ht_bss_conf.primary_channel !=
- bss_info.primary_channel) ||
- (conf->ht_bss_conf.bss_cap != bss_info.bss_cap) ||
- (conf->ht_bss_conf.bss_op_mode != bss_info.bss_op_mode))
- ieee80211_hw_config_ht(local, 1, &conf->ht_conf,
- &bss_info);
- }
-
- if (elems.wmm_param && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
- ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param,
- elems.wmm_param_len);
- }
-
- ieee80211_bss_info_change_notify(sdata, changed);
-}
-
-
-static void ieee80211_rx_mgmt_probe_req(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- int tx_last_beacon;
- struct sk_buff *skb;
- struct ieee80211_mgmt *resp;
- u8 *pos, *end;
- DECLARE_MAC_BUF(mac);
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- DECLARE_MAC_BUF(mac2);
- DECLARE_MAC_BUF(mac3);
-#endif
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS ||
- ifsta->state != IEEE80211_IBSS_JOINED ||
- len < 24 + 2 || !ifsta->probe_resp)
- return;
-
- if (local->ops->tx_last_beacon)
- tx_last_beacon = local->ops->tx_last_beacon(local_to_hw(local));
- else
- tx_last_beacon = 1;
-
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- printk(KERN_DEBUG "%s: RX ProbeReq SA=%s DA=%s BSSID="
- "%s (tx_last_beacon=%d)\n",
- dev->name, print_mac(mac, mgmt->sa), print_mac(mac2, mgmt->da),
- print_mac(mac3, mgmt->bssid), tx_last_beacon);
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
-
- if (!tx_last_beacon)
- return;
-
- if (memcmp(mgmt->bssid, ifsta->bssid, ETH_ALEN) != 0 &&
- memcmp(mgmt->bssid, "\xff\xff\xff\xff\xff\xff", ETH_ALEN) != 0)
- return;
-
- end = ((u8 *) mgmt) + len;
- pos = mgmt->u.probe_req.variable;
- if (pos[0] != WLAN_EID_SSID ||
- pos + 2 + pos[1] > end) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: Invalid SSID IE in ProbeReq "
- "from %s\n",
- dev->name, print_mac(mac, mgmt->sa));
- }
- return;
- }
- if (pos[1] != 0 &&
- (pos[1] != ifsta->ssid_len ||
- memcmp(pos + 2, ifsta->ssid, ifsta->ssid_len) != 0)) {
- /* Ignore ProbeReq for foreign SSID */
- return;
- }
-
- /* Reply with ProbeResp */
- skb = skb_copy(ifsta->probe_resp, GFP_KERNEL);
- if (!skb)
- return;
-
- resp = (struct ieee80211_mgmt *) skb->data;
- memcpy(resp->da, mgmt->sa, ETH_ALEN);
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- printk(KERN_DEBUG "%s: Sending ProbeResp to %s\n",
- dev->name, print_mac(mac, resp->da));
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
- ieee80211_sta_tx(dev, skb, 0);
-}
-
-static void ieee80211_rx_mgmt_action(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len)
-{
- if (len < IEEE80211_MIN_ACTION_SIZE)
- return;
-
- switch (mgmt->u.action.category) {
- case WLAN_CATEGORY_BACK:
- switch (mgmt->u.action.u.addba_req.action_code) {
- case WLAN_ACTION_ADDBA_REQ:
- if (len < (IEEE80211_MIN_ACTION_SIZE +
- sizeof(mgmt->u.action.u.addba_req)))
- break;
- ieee80211_sta_process_addba_request(dev, mgmt, len);
- break;
- case WLAN_ACTION_ADDBA_RESP:
- if (len < (IEEE80211_MIN_ACTION_SIZE +
- sizeof(mgmt->u.action.u.addba_resp)))
- break;
- ieee80211_sta_process_addba_resp(dev, mgmt, len);
- break;
- case WLAN_ACTION_DELBA:
- if (len < (IEEE80211_MIN_ACTION_SIZE +
- sizeof(mgmt->u.action.u.delba)))
- break;
- ieee80211_sta_process_delba(dev, mgmt, len);
- break;
- default:
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: Rx unknown A-MPDU action\n",
- dev->name);
- break;
- }
- break;
- default:
- break;
- }
-}
-
-void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
- struct ieee80211_rx_status *rx_status)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_if_sta *ifsta;
- struct ieee80211_mgmt *mgmt;
- u16 fc;
-
- if (skb->len < 24)
- goto fail;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- ifsta = &sdata->u.sta;
-
- mgmt = (struct ieee80211_mgmt *) skb->data;
- fc = le16_to_cpu(mgmt->frame_control);
-
- switch (fc & IEEE80211_FCTL_STYPE) {
- case IEEE80211_STYPE_PROBE_REQ:
- case IEEE80211_STYPE_PROBE_RESP:
- case IEEE80211_STYPE_BEACON:
- memcpy(skb->cb, rx_status, sizeof(*rx_status));
- case IEEE80211_STYPE_AUTH:
- case IEEE80211_STYPE_ASSOC_RESP:
- case IEEE80211_STYPE_REASSOC_RESP:
- case IEEE80211_STYPE_DEAUTH:
- case IEEE80211_STYPE_DISASSOC:
- case IEEE80211_STYPE_ACTION:
- skb_queue_tail(&ifsta->skb_queue, skb);
- queue_work(local->hw.workqueue, &ifsta->work);
- return;
- default:
- printk(KERN_DEBUG "%s: received unknown management frame - "
- "stype=%d\n", dev->name,
- (fc & IEEE80211_FCTL_STYPE) >> 4);
- break;
- }
-
- fail:
- kfree_skb(skb);
-}
-
-
-static void ieee80211_sta_rx_queued_mgmt(struct net_device *dev,
- struct sk_buff *skb)
-{
- struct ieee80211_rx_status *rx_status;
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_if_sta *ifsta;
- struct ieee80211_mgmt *mgmt;
- u16 fc;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- ifsta = &sdata->u.sta;
-
- rx_status = (struct ieee80211_rx_status *) skb->cb;
- mgmt = (struct ieee80211_mgmt *) skb->data;
- fc = le16_to_cpu(mgmt->frame_control);
-
- switch (fc & IEEE80211_FCTL_STYPE) {
- case IEEE80211_STYPE_PROBE_REQ:
- ieee80211_rx_mgmt_probe_req(dev, ifsta, mgmt, skb->len,
- rx_status);
- break;
- case IEEE80211_STYPE_PROBE_RESP:
- ieee80211_rx_mgmt_probe_resp(dev, mgmt, skb->len, rx_status);
- break;
- case IEEE80211_STYPE_BEACON:
- ieee80211_rx_mgmt_beacon(dev, mgmt, skb->len, rx_status);
- break;
- case IEEE80211_STYPE_AUTH:
- ieee80211_rx_mgmt_auth(dev, ifsta, mgmt, skb->len);
- break;
- case IEEE80211_STYPE_ASSOC_RESP:
- ieee80211_rx_mgmt_assoc_resp(sdata, ifsta, mgmt, skb->len, 0);
- break;
- case IEEE80211_STYPE_REASSOC_RESP:
- ieee80211_rx_mgmt_assoc_resp(sdata, ifsta, mgmt, skb->len, 1);
- break;
- case IEEE80211_STYPE_DEAUTH:
- ieee80211_rx_mgmt_deauth(dev, ifsta, mgmt, skb->len);
- break;
- case IEEE80211_STYPE_DISASSOC:
- ieee80211_rx_mgmt_disassoc(dev, ifsta, mgmt, skb->len);
- break;
- case IEEE80211_STYPE_ACTION:
- ieee80211_rx_mgmt_action(dev, ifsta, mgmt, skb->len);
- break;
- }
-
- kfree_skb(skb);
-}
-
-
-ieee80211_rx_result
-ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb,
- struct ieee80211_rx_status *rx_status)
-{
- struct ieee80211_mgmt *mgmt;
- u16 fc;
-
- if (skb->len < 2)
- return RX_DROP_UNUSABLE;
-
- mgmt = (struct ieee80211_mgmt *) skb->data;
- fc = le16_to_cpu(mgmt->frame_control);
-
- if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL)
- return RX_CONTINUE;
-
- if (skb->len < 24)
- return RX_DROP_MONITOR;
-
- if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) {
- if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP) {
- ieee80211_rx_mgmt_probe_resp(dev, mgmt,
- skb->len, rx_status);
- dev_kfree_skb(skb);
- return RX_QUEUED;
- } else if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON) {
- ieee80211_rx_mgmt_beacon(dev, mgmt, skb->len,
- rx_status);
- dev_kfree_skb(skb);
- return RX_QUEUED;
- }
- }
- return RX_CONTINUE;
-}
-
-
-static int ieee80211_sta_active_ibss(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- int active = 0;
- struct sta_info *sta;
-
- read_lock_bh(&local->sta_lock);
- list_for_each_entry(sta, &local->sta_list, list) {
- if (sta->dev == dev &&
- time_after(sta->last_rx + IEEE80211_IBSS_MERGE_INTERVAL,
- jiffies)) {
- active++;
- break;
- }
- }
- read_unlock_bh(&local->sta_lock);
-
- return active;
-}
-
-
-static void ieee80211_sta_expire(struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta, *tmp;
- LIST_HEAD(tmp_list);
- DECLARE_MAC_BUF(mac);
-
- write_lock_bh(&local->sta_lock);
- list_for_each_entry_safe(sta, tmp, &local->sta_list, list)
- if (time_after(jiffies, sta->last_rx +
- IEEE80211_IBSS_INACTIVITY_LIMIT)) {
- printk(KERN_DEBUG "%s: expiring inactive STA %s\n",
- dev->name, print_mac(mac, sta->addr));
- __sta_info_get(sta);
- sta_info_remove(sta);
- list_add(&sta->list, &tmp_list);
- }
- write_unlock_bh(&local->sta_lock);
-
- list_for_each_entry_safe(sta, tmp, &tmp_list, list) {
- sta_info_free(sta);
- sta_info_put(sta);
- }
-}
-
-
-static void ieee80211_sta_merge_ibss(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
-
- ieee80211_sta_expire(dev);
- if (ieee80211_sta_active_ibss(dev))
- return;
-
- printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other "
- "IBSS networks with same SSID (merge)\n", dev->name);
- ieee80211_sta_req_scan(dev, ifsta->ssid, ifsta->ssid_len);
-}
-
-
-void ieee80211_sta_timer(unsigned long data)
-{
- struct ieee80211_sub_if_data *sdata =
- (struct ieee80211_sub_if_data *) data;
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- struct ieee80211_local *local = wdev_priv(&sdata->wdev);
-
- set_bit(IEEE80211_STA_REQ_RUN, &ifsta->request);
- queue_work(local->hw.workqueue, &ifsta->work);
-}
-
-
-void ieee80211_sta_work(struct work_struct *work)
-{
- struct ieee80211_sub_if_data *sdata =
- container_of(work, struct ieee80211_sub_if_data, u.sta.work);
- struct net_device *dev = sdata->dev;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_if_sta *ifsta;
- struct sk_buff *skb;
-
- if (!netif_running(dev))
- return;
-
- if (local->sta_sw_scanning || local->sta_hw_scanning)
- return;
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
- sdata->vif.type != IEEE80211_IF_TYPE_IBSS) {
- printk(KERN_DEBUG "%s: ieee80211_sta_work: non-STA interface "
- "(type=%d)\n", dev->name, sdata->vif.type);
- return;
- }
- ifsta = &sdata->u.sta;
-
- while ((skb = skb_dequeue(&ifsta->skb_queue)))
- ieee80211_sta_rx_queued_mgmt(dev, skb);
-
- if (ifsta->state != IEEE80211_AUTHENTICATE &&
- ifsta->state != IEEE80211_ASSOCIATE &&
- test_and_clear_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request)) {
- if (ifsta->scan_ssid_len)
- ieee80211_sta_start_scan(dev, ifsta->scan_ssid, ifsta->scan_ssid_len);
- else
- ieee80211_sta_start_scan(dev, NULL, 0);
- return;
- }
-
- if (test_and_clear_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request)) {
- if (ieee80211_sta_config_auth(dev, ifsta))
- return;
- clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request);
- } else if (!test_and_clear_bit(IEEE80211_STA_REQ_RUN, &ifsta->request))
- return;
-
- switch (ifsta->state) {
- case IEEE80211_DISABLED:
- break;
- case IEEE80211_AUTHENTICATE:
- ieee80211_authenticate(dev, ifsta);
- break;
- case IEEE80211_ASSOCIATE:
- ieee80211_associate(dev, ifsta);
- break;
- case IEEE80211_ASSOCIATED:
- ieee80211_associated(dev, ifsta);
- break;
- case IEEE80211_IBSS_SEARCH:
- ieee80211_sta_find_ibss(dev, ifsta);
- break;
- case IEEE80211_IBSS_JOINED:
- ieee80211_sta_merge_ibss(dev, ifsta);
- break;
- default:
- printk(KERN_DEBUG "ieee80211_sta_work: Unknown state %d\n",
- ifsta->state);
- break;
- }
-
- if (ieee80211_privacy_mismatch(dev, ifsta)) {
- printk(KERN_DEBUG "%s: privacy configuration mismatch and "
- "mixed-cell disabled - disassociate\n", dev->name);
-
- ieee80211_send_disassoc(dev, ifsta, WLAN_REASON_UNSPECIFIED);
- ieee80211_set_disassoc(dev, ifsta, 0);
- }
-}
-
-
-static void ieee80211_sta_reset_auth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- if (local->ops->reset_tsf) {
- /* Reset own TSF to allow time synchronization work. */
- local->ops->reset_tsf(local_to_hw(local));
- }
-
- ifsta->wmm_last_param_set = -1; /* allow any WMM update */
-
-
- if (ifsta->auth_algs & IEEE80211_AUTH_ALG_OPEN)
- ifsta->auth_alg = WLAN_AUTH_OPEN;
- else if (ifsta->auth_algs & IEEE80211_AUTH_ALG_SHARED_KEY)
- ifsta->auth_alg = WLAN_AUTH_SHARED_KEY;
- else if (ifsta->auth_algs & IEEE80211_AUTH_ALG_LEAP)
- ifsta->auth_alg = WLAN_AUTH_LEAP;
- else
- ifsta->auth_alg = WLAN_AUTH_OPEN;
- printk(KERN_DEBUG "%s: Initial auth_alg=%d\n", dev->name,
- ifsta->auth_alg);
- ifsta->auth_transaction = -1;
- ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
- ifsta->auth_tries = ifsta->assoc_tries = 0;
- netif_carrier_off(dev);
-}
-
-
-void ieee80211_sta_req_auth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
- return;
-
- if ((ifsta->flags & (IEEE80211_STA_BSSID_SET |
- IEEE80211_STA_AUTO_BSSID_SEL)) &&
- (ifsta->flags & (IEEE80211_STA_SSID_SET |
- IEEE80211_STA_AUTO_SSID_SEL))) {
- set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
- queue_work(local->hw.workqueue, &ifsta->work);
- }
-}
-
-static int ieee80211_sta_match_ssid(struct ieee80211_if_sta *ifsta,
- const char *ssid, int ssid_len)
-{
- int tmp, hidden_ssid;
-
- if (ssid_len == ifsta->ssid_len &&
- !memcmp(ifsta->ssid, ssid, ssid_len))
- return 1;
-
- if (ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL)
- return 0;
-
- hidden_ssid = 1;
- tmp = ssid_len;
- while (tmp--) {
- if (ssid[tmp] != '\0') {
- hidden_ssid = 0;
- break;
- }
- }
-
- if (hidden_ssid && ifsta->ssid_len == ssid_len)
- return 1;
-
- if (ssid_len == 1 && ssid[0] == ' ')
- return 1;
-
- return 0;
-}
-
-static int ieee80211_sta_config_auth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_sta_bss *bss, *selected = NULL;
- int top_rssi = 0, freq;
-
- if (!(ifsta->flags & (IEEE80211_STA_AUTO_SSID_SEL |
- IEEE80211_STA_AUTO_BSSID_SEL | IEEE80211_STA_AUTO_CHANNEL_SEL))) {
- ifsta->state = IEEE80211_AUTHENTICATE;
- ieee80211_sta_reset_auth(dev, ifsta);
- return 0;
- }
-
- spin_lock_bh(&local->sta_bss_lock);
- freq = local->oper_channel->center_freq;
- list_for_each_entry(bss, &local->sta_bss_list, list) {
- if (!(bss->capability & WLAN_CAPABILITY_ESS))
- continue;
-
- if (!!(bss->capability & WLAN_CAPABILITY_PRIVACY) ^
- !!sdata->default_key)
- continue;
-
- if (!(ifsta->flags & IEEE80211_STA_AUTO_CHANNEL_SEL) &&
- bss->freq != freq)
- continue;
-
- if (!(ifsta->flags & IEEE80211_STA_AUTO_BSSID_SEL) &&
- memcmp(bss->bssid, ifsta->bssid, ETH_ALEN))
- continue;
-
- if (!(ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL) &&
- !ieee80211_sta_match_ssid(ifsta, bss->ssid, bss->ssid_len))
- continue;
-
- if (!selected || top_rssi < bss->rssi) {
- selected = bss;
- top_rssi = bss->rssi;
- }
- }
- if (selected)
- atomic_inc(&selected->users);
- spin_unlock_bh(&local->sta_bss_lock);
-
- if (selected) {
- ieee80211_set_freq(local, selected->freq);
- if (!(ifsta->flags & IEEE80211_STA_SSID_SET))
- ieee80211_sta_set_ssid(dev, selected->ssid,
- selected->ssid_len);
- ieee80211_sta_set_bssid(dev, selected->bssid);
- ieee80211_rx_bss_put(dev, selected);
- ifsta->state = IEEE80211_AUTHENTICATE;
- ieee80211_sta_reset_auth(dev, ifsta);
- return 0;
- } else {
- if (ifsta->state != IEEE80211_AUTHENTICATE) {
- if (ifsta->flags & IEEE80211_STA_AUTO_SSID_SEL)
- ieee80211_sta_start_scan(dev, NULL, 0);
- else
- ieee80211_sta_start_scan(dev, ifsta->ssid,
- ifsta->ssid_len);
- ifsta->state = IEEE80211_AUTHENTICATE;
- set_bit(IEEE80211_STA_REQ_AUTH, &ifsta->request);
- } else
- ifsta->state = IEEE80211_DISABLED;
- }
- return -1;
-}
-
-static int ieee80211_sta_join_ibss(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_sta_bss *bss)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- int res, rates, i, j;
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
- struct ieee80211_tx_control control;
- struct rate_selection ratesel;
- u8 *pos;
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_supported_band *sband;
-
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
- /* Remove possible STA entries from other IBSS networks. */
- sta_info_flush(local, NULL);
-
- if (local->ops->reset_tsf) {
- /* Reset own TSF to allow time synchronization work. */
- local->ops->reset_tsf(local_to_hw(local));
- }
- memcpy(ifsta->bssid, bss->bssid, ETH_ALEN);
- res = ieee80211_if_config(dev);
- if (res)
- return res;
-
- local->hw.conf.beacon_int = bss->beacon_int >= 10 ? bss->beacon_int : 10;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- sdata->drop_unencrypted = bss->capability &
- WLAN_CAPABILITY_PRIVACY ? 1 : 0;
-
- res = ieee80211_set_freq(local, bss->freq);
-
- if (local->oper_channel->flags & IEEE80211_CHAN_NO_IBSS) {
- printk(KERN_DEBUG "%s: IBSS not allowed on frequency "
- "%d MHz\n", dev->name, local->oper_channel->center_freq);
- return -1;
- }
-
- /* Set beacon template based on scan results */
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + 400);
- do {
- if (!skb)
- break;
-
- skb_reserve(skb, local->hw.extra_tx_headroom);
-
- mgmt = (struct ieee80211_mgmt *)
- skb_put(skb, 24 + sizeof(mgmt->u.beacon));
- memset(mgmt, 0, 24 + sizeof(mgmt->u.beacon));
- mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_BEACON);
- memset(mgmt->da, 0xff, ETH_ALEN);
- memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
- memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
- mgmt->u.beacon.beacon_int =
- cpu_to_le16(local->hw.conf.beacon_int);
- mgmt->u.beacon.capab_info = cpu_to_le16(bss->capability);
-
- pos = skb_put(skb, 2 + ifsta->ssid_len);
- *pos++ = WLAN_EID_SSID;
- *pos++ = ifsta->ssid_len;
- memcpy(pos, ifsta->ssid, ifsta->ssid_len);
-
- rates = bss->supp_rates_len;
- if (rates > 8)
- rates = 8;
- pos = skb_put(skb, 2 + rates);
- *pos++ = WLAN_EID_SUPP_RATES;
- *pos++ = rates;
- memcpy(pos, bss->supp_rates, rates);
-
- if (bss->band == IEEE80211_BAND_2GHZ) {
- pos = skb_put(skb, 2 + 1);
- *pos++ = WLAN_EID_DS_PARAMS;
- *pos++ = 1;
- *pos++ = ieee80211_frequency_to_channel(bss->freq);
- }
-
- pos = skb_put(skb, 2 + 2);
- *pos++ = WLAN_EID_IBSS_PARAMS;
- *pos++ = 2;
- /* FIX: set ATIM window based on scan results */
- *pos++ = 0;
- *pos++ = 0;
-
- if (bss->supp_rates_len > 8) {
- rates = bss->supp_rates_len - 8;
- pos = skb_put(skb, 2 + rates);
- *pos++ = WLAN_EID_EXT_SUPP_RATES;
- *pos++ = rates;
- memcpy(pos, &bss->supp_rates[8], rates);
- }
-
- memset(&control, 0, sizeof(control));
- rate_control_get_rate(dev, sband, skb, &ratesel);
- if (!ratesel.rate) {
- printk(KERN_DEBUG "%s: Failed to determine TX rate "
- "for IBSS beacon\n", dev->name);
- break;
- }
- control.vif = &sdata->vif;
- control.tx_rate = ratesel.rate;
- if (sdata->bss_conf.use_short_preamble &&
- ratesel.rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
- control.flags |= IEEE80211_TXCTL_SHORT_PREAMBLE;
- control.antenna_sel_tx = local->hw.conf.antenna_sel_tx;
- control.flags |= IEEE80211_TXCTL_NO_ACK;
- control.retry_limit = 1;
-
- ifsta->probe_resp = skb_copy(skb, GFP_ATOMIC);
- if (ifsta->probe_resp) {
- mgmt = (struct ieee80211_mgmt *)
- ifsta->probe_resp->data;
- mgmt->frame_control =
- IEEE80211_FC(IEEE80211_FTYPE_MGMT,
- IEEE80211_STYPE_PROBE_RESP);
- } else {
- printk(KERN_DEBUG "%s: Could not allocate ProbeResp "
- "template for IBSS\n", dev->name);
- }
-
- if (local->ops->beacon_update &&
- local->ops->beacon_update(local_to_hw(local),
- skb, &control) == 0) {
- printk(KERN_DEBUG "%s: Configured IBSS beacon "
- "template based on scan results\n", dev->name);
- skb = NULL;
- }
-
- rates = 0;
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
- for (i = 0; i < bss->supp_rates_len; i++) {
- int bitrate = (bss->supp_rates[i] & 0x7f) * 5;
- for (j = 0; j < sband->n_bitrates; j++)
- if (sband->bitrates[j].bitrate == bitrate)
- rates |= BIT(j);
- }
- ifsta->supp_rates_bits[local->hw.conf.channel->band] = rates;
- } while (0);
-
- if (skb) {
- printk(KERN_DEBUG "%s: Failed to configure IBSS beacon "
- "template\n", dev->name);
- dev_kfree_skb(skb);
- }
-
- ifsta->state = IEEE80211_IBSS_JOINED;
- mod_timer(&ifsta->timer, jiffies + IEEE80211_IBSS_MERGE_INTERVAL);
-
- ieee80211_rx_bss_put(dev, bss);
-
- return res;
-}
-
-
-static int ieee80211_sta_create_ibss(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sta_bss *bss;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_supported_band *sband;
- u8 bssid[ETH_ALEN], *pos;
- int i;
- DECLARE_MAC_BUF(mac);
-
-#if 0
- /* Easier testing, use fixed BSSID. */
- memset(bssid, 0xfe, ETH_ALEN);
-#else
- /* Generate random, not broadcast, locally administered BSSID. Mix in
- * own MAC address to make sure that devices that do not have proper
- * random number generator get different BSSID. */
- get_random_bytes(bssid, ETH_ALEN);
- for (i = 0; i < ETH_ALEN; i++)
- bssid[i] ^= dev->dev_addr[i];
- bssid[0] &= ~0x01;
- bssid[0] |= 0x02;
-#endif
-
- printk(KERN_DEBUG "%s: Creating new IBSS network, BSSID %s\n",
- dev->name, print_mac(mac, bssid));
-
- bss = ieee80211_rx_bss_add(dev, bssid,
- local->hw.conf.channel->center_freq,
- sdata->u.sta.ssid, sdata->u.sta.ssid_len);
- if (!bss)
- return -ENOMEM;
-
- bss->band = local->hw.conf.channel->band;
- sband = local->hw.wiphy->bands[bss->band];
-
- if (local->hw.conf.beacon_int == 0)
- local->hw.conf.beacon_int = 100;
- bss->beacon_int = local->hw.conf.beacon_int;
- bss->last_update = jiffies;
- bss->capability = WLAN_CAPABILITY_IBSS;
- if (sdata->default_key) {
- bss->capability |= WLAN_CAPABILITY_PRIVACY;
- } else
- sdata->drop_unencrypted = 0;
- bss->supp_rates_len = sband->n_bitrates;
- pos = bss->supp_rates;
- for (i = 0; i < sband->n_bitrates; i++) {
- int rate = sband->bitrates[i].bitrate;
- *pos++ = (u8) (rate / 5);
- }
-
- return ieee80211_sta_join_ibss(dev, ifsta, bss);
-}
-
-
-static int ieee80211_sta_find_ibss(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sta_bss *bss;
- int found = 0;
- u8 bssid[ETH_ALEN];
- int active_ibss;
- DECLARE_MAC_BUF(mac);
- DECLARE_MAC_BUF(mac2);
-
- if (ifsta->ssid_len == 0)
- return -EINVAL;
-
- active_ibss = ieee80211_sta_active_ibss(dev);
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- printk(KERN_DEBUG "%s: sta_find_ibss (active_ibss=%d)\n",
- dev->name, active_ibss);
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
- spin_lock_bh(&local->sta_bss_lock);
- list_for_each_entry(bss, &local->sta_bss_list, list) {
- if (ifsta->ssid_len != bss->ssid_len ||
- memcmp(ifsta->ssid, bss->ssid, bss->ssid_len) != 0
- || !(bss->capability & WLAN_CAPABILITY_IBSS))
- continue;
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- printk(KERN_DEBUG " bssid=%s found\n",
- print_mac(mac, bss->bssid));
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
- memcpy(bssid, bss->bssid, ETH_ALEN);
- found = 1;
- if (active_ibss || memcmp(bssid, ifsta->bssid, ETH_ALEN) != 0)
- break;
- }
- spin_unlock_bh(&local->sta_bss_lock);
-
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- printk(KERN_DEBUG " sta_find_ibss: selected %s current "
- "%s\n", print_mac(mac, bssid), print_mac(mac2, ifsta->bssid));
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
- if (found && memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0 &&
- (bss = ieee80211_rx_bss_get(dev, bssid,
- local->hw.conf.channel->center_freq,
- ifsta->ssid, ifsta->ssid_len))) {
- printk(KERN_DEBUG "%s: Selected IBSS BSSID %s"
- " based on configured SSID\n",
- dev->name, print_mac(mac, bssid));
- return ieee80211_sta_join_ibss(dev, ifsta, bss);
- }
-#ifdef CONFIG_MAC80211_IBSS_DEBUG
- printk(KERN_DEBUG " did not try to join ibss\n");
-#endif /* CONFIG_MAC80211_IBSS_DEBUG */
-
- /* Selected IBSS not found in current scan results - try to scan */
- if (ifsta->state == IEEE80211_IBSS_JOINED &&
- !ieee80211_sta_active_ibss(dev)) {
- mod_timer(&ifsta->timer, jiffies +
- IEEE80211_IBSS_MERGE_INTERVAL);
- } else if (time_after(jiffies, local->last_scan_completed +
- IEEE80211_SCAN_INTERVAL)) {
- printk(KERN_DEBUG "%s: Trigger new scan to find an IBSS to "
- "join\n", dev->name);
- return ieee80211_sta_req_scan(dev, ifsta->ssid,
- ifsta->ssid_len);
- } else if (ifsta->state != IEEE80211_IBSS_JOINED) {
- int interval = IEEE80211_SCAN_INTERVAL;
-
- if (time_after(jiffies, ifsta->ibss_join_req +
- IEEE80211_IBSS_JOIN_TIMEOUT)) {
- if ((ifsta->flags & IEEE80211_STA_CREATE_IBSS) &&
- (!(local->oper_channel->flags &
- IEEE80211_CHAN_NO_IBSS)))
- return ieee80211_sta_create_ibss(dev, ifsta);
- if (ifsta->flags & IEEE80211_STA_CREATE_IBSS) {
- printk(KERN_DEBUG "%s: IBSS not allowed on"
- " %d MHz\n", dev->name,
- local->hw.conf.channel->center_freq);
- }
-
- /* No IBSS found - decrease scan interval and continue
- * scanning. */
- interval = IEEE80211_SCAN_INTERVAL_SLOW;
- }
-
- ifsta->state = IEEE80211_IBSS_SEARCH;
- mod_timer(&ifsta->timer, jiffies + interval);
- return 0;
- }
-
- return 0;
-}
-
-
-int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- if (len > IEEE80211_MAX_SSID_LEN)
- return -EINVAL;
-
- /* TODO: This should always be done for IBSS, even if IEEE80211_QOS is
- * not defined. */
- if (local->ops->conf_tx) {
- struct ieee80211_tx_queue_params qparam;
- int i;
-
- memset(&qparam, 0, sizeof(qparam));
-
- qparam.aifs = 2;
-
- if (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ &&
- !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE))
- qparam.cw_min = 31;
- else
- qparam.cw_min = 15;
-
- qparam.cw_max = 1023;
- qparam.burst_time = 0;
-
- for (i = IEEE80211_TX_QUEUE_DATA0; i < NUM_TX_DATA_QUEUES; i++)
- local->ops->conf_tx(local_to_hw(local),
- i + IEEE80211_TX_QUEUE_DATA0,
- &qparam);
-
- /* IBSS uses different parameters for Beacon sending */
- qparam.cw_min++;
- qparam.cw_min *= 2;
- qparam.cw_min--;
- local->ops->conf_tx(local_to_hw(local),
- IEEE80211_TX_QUEUE_BEACON, &qparam);
- }
-
- ifsta = &sdata->u.sta;
-
- if (ifsta->ssid_len != len || memcmp(ifsta->ssid, ssid, len) != 0)
- ifsta->flags &= ~IEEE80211_STA_PREV_BSSID_SET;
- memcpy(ifsta->ssid, ssid, len);
- memset(ifsta->ssid + len, 0, IEEE80211_MAX_SSID_LEN - len);
- ifsta->ssid_len = len;
-
- if (len)
- ifsta->flags |= IEEE80211_STA_SSID_SET;
- else
- ifsta->flags &= ~IEEE80211_STA_SSID_SET;
- if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
- !(ifsta->flags & IEEE80211_STA_BSSID_SET)) {
- ifsta->ibss_join_req = jiffies;
- ifsta->state = IEEE80211_IBSS_SEARCH;
- return ieee80211_sta_find_ibss(dev, ifsta);
- }
- return 0;
-}
-
-
-int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- memcpy(ssid, ifsta->ssid, ifsta->ssid_len);
- *len = ifsta->ssid_len;
- return 0;
-}
-
-
-int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_if_sta *ifsta;
- int res;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- ifsta = &sdata->u.sta;
-
- if (memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0) {
- memcpy(ifsta->bssid, bssid, ETH_ALEN);
- res = ieee80211_if_config(dev);
- if (res) {
- printk(KERN_DEBUG "%s: Failed to config new BSSID to "
- "the low-level driver\n", dev->name);
- return res;
- }
- }
-
- if (is_valid_ether_addr(bssid))
- ifsta->flags |= IEEE80211_STA_BSSID_SET;
- else
- ifsta->flags &= ~IEEE80211_STA_BSSID_SET;
-
- return 0;
-}
-
-
-static void ieee80211_send_nullfunc(struct ieee80211_local *local,
- struct ieee80211_sub_if_data *sdata,
- int powersave)
-{
- struct sk_buff *skb;
- struct ieee80211_hdr *nullfunc;
- u16 fc;
-
- skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24);
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for nullfunc "
- "frame\n", sdata->dev->name);
- return;
- }
- skb_reserve(skb, local->hw.extra_tx_headroom);
-
- nullfunc = (struct ieee80211_hdr *) skb_put(skb, 24);
- memset(nullfunc, 0, 24);
- fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
- IEEE80211_FCTL_TODS;
- if (powersave)
- fc |= IEEE80211_FCTL_PM;
- nullfunc->frame_control = cpu_to_le16(fc);
- memcpy(nullfunc->addr1, sdata->u.sta.bssid, ETH_ALEN);
- memcpy(nullfunc->addr2, sdata->dev->dev_addr, ETH_ALEN);
- memcpy(nullfunc->addr3, sdata->u.sta.bssid, ETH_ALEN);
-
- ieee80211_sta_tx(sdata->dev, skb, 0);
-}
-
-
-void ieee80211_scan_completed(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct net_device *dev = local->scan_dev;
- struct ieee80211_sub_if_data *sdata;
- union iwreq_data wrqu;
-
- local->last_scan_completed = jiffies;
- memset(&wrqu, 0, sizeof(wrqu));
- wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
-
- if (local->sta_hw_scanning) {
- local->sta_hw_scanning = 0;
- goto done;
- }
-
- local->sta_sw_scanning = 0;
- if (ieee80211_hw_config(local))
- printk(KERN_DEBUG "%s: failed to restore operational "
- "channel after scan\n", dev->name);
-
-
- netif_tx_lock_bh(local->mdev);
- local->filter_flags &= ~FIF_BCN_PRBRESP_PROMISC;
- local->ops->configure_filter(local_to_hw(local),
- FIF_BCN_PRBRESP_PROMISC,
- &local->filter_flags,
- local->mdev->mc_count,
- local->mdev->mc_list);
-
- netif_tx_unlock_bh(local->mdev);
-
- rcu_read_lock();
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
-
- /* No need to wake the master device. */
- if (sdata->dev == local->mdev)
- continue;
-
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA) {
- if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED)
- ieee80211_send_nullfunc(local, sdata, 0);
- ieee80211_sta_timer((unsigned long)sdata);
- }
-
- netif_wake_queue(sdata->dev);
- }
- rcu_read_unlock();
-
-done:
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- if (!(ifsta->flags & IEEE80211_STA_BSSID_SET) ||
- (!ifsta->state == IEEE80211_IBSS_JOINED &&
- !ieee80211_sta_active_ibss(dev)))
- ieee80211_sta_find_ibss(dev, ifsta);
- }
-}
-EXPORT_SYMBOL(ieee80211_scan_completed);
-
-void ieee80211_sta_scan_work(struct work_struct *work)
-{
- struct ieee80211_local *local =
- container_of(work, struct ieee80211_local, scan_work.work);
- struct net_device *dev = local->scan_dev;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_supported_band *sband;
- struct ieee80211_channel *chan;
- int skip;
- unsigned long next_delay = 0;
-
- if (!local->sta_sw_scanning)
- return;
-
- switch (local->scan_state) {
- case SCAN_SET_CHANNEL:
- /*
- * Get current scan band. scan_band may be IEEE80211_NUM_BANDS
- * after we successfully scanned the last channel of the last
- * band (and the last band is supported by the hw)
- */
- if (local->scan_band < IEEE80211_NUM_BANDS)
- sband = local->hw.wiphy->bands[local->scan_band];
- else
- sband = NULL;
-
- /*
- * If we are at an unsupported band and have more bands
- * left to scan, advance to the next supported one.
- */
- while (!sband && local->scan_band < IEEE80211_NUM_BANDS - 1) {
- local->scan_band++;
- sband = local->hw.wiphy->bands[local->scan_band];
- local->scan_channel_idx = 0;
- }
-
- /* if no more bands/channels left, complete scan */
- if (!sband || local->scan_channel_idx >= sband->n_channels) {
- ieee80211_scan_completed(local_to_hw(local));
- return;
- }
- skip = 0;
- chan = &sband->channels[local->scan_channel_idx];
-
- if (chan->flags & IEEE80211_CHAN_DISABLED ||
- (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
- chan->flags & IEEE80211_CHAN_NO_IBSS))
- skip = 1;
-
- if (!skip) {
- local->scan_channel = chan;
- if (ieee80211_hw_config(local)) {
- printk(KERN_DEBUG "%s: failed to set freq to "
- "%d MHz for scan\n", dev->name,
- chan->center_freq);
- skip = 1;
- }
- }
-
- /* advance state machine to next channel/band */
- local->scan_channel_idx++;
- if (local->scan_channel_idx >= sband->n_channels) {
- /*
- * scan_band may end up == IEEE80211_NUM_BANDS, but
- * we'll catch that case above and complete the scan
- * if that is the case.
- */
- local->scan_band++;
- local->scan_channel_idx = 0;
- }
-
- if (skip)
- break;
-
- next_delay = IEEE80211_PROBE_DELAY +
- usecs_to_jiffies(local->hw.channel_change_time);
- local->scan_state = SCAN_SEND_PROBE;
- break;
- case SCAN_SEND_PROBE:
- next_delay = IEEE80211_PASSIVE_CHANNEL_TIME;
- local->scan_state = SCAN_SET_CHANNEL;
-
- if (local->scan_channel->flags & IEEE80211_CHAN_PASSIVE_SCAN)
- break;
- ieee80211_send_probe_req(dev, NULL, local->scan_ssid,
- local->scan_ssid_len);
- next_delay = IEEE80211_CHANNEL_TIME;
- break;
- }
-
- if (local->sta_sw_scanning)
- queue_delayed_work(local->hw.workqueue, &local->scan_work,
- next_delay);
-}
-
-
-static int ieee80211_sta_start_scan(struct net_device *dev,
- u8 *ssid, size_t ssid_len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata;
-
- if (ssid_len > IEEE80211_MAX_SSID_LEN)
- return -EINVAL;
-
- /* MLME-SCAN.request (page 118) page 144 (11.1.3.1)
- * BSSType: INFRASTRUCTURE, INDEPENDENT, ANY_BSS
- * BSSID: MACAddress
- * SSID
- * ScanType: ACTIVE, PASSIVE
- * ProbeDelay: delay (in microseconds) to be used prior to transmitting
- * a Probe frame during active scanning
- * ChannelList
- * MinChannelTime (>= ProbeDelay), in TU
- * MaxChannelTime: (>= MinChannelTime), in TU
- */
-
- /* MLME-SCAN.confirm
- * BSSDescriptionSet
- * ResultCode: SUCCESS, INVALID_PARAMETERS
- */
-
- if (local->sta_sw_scanning || local->sta_hw_scanning) {
- if (local->scan_dev == dev)
- return 0;
- return -EBUSY;
- }
-
- if (local->ops->hw_scan) {
- int rc = local->ops->hw_scan(local_to_hw(local),
- ssid, ssid_len);
- if (!rc) {
- local->sta_hw_scanning = 1;
- local->scan_dev = dev;
- }
- return rc;
- }
-
- local->sta_sw_scanning = 1;
-
- rcu_read_lock();
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
-
- /* Don't stop the master interface, otherwise we can't transmit
- * probes! */
- if (sdata->dev == local->mdev)
- continue;
-
- netif_stop_queue(sdata->dev);
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA &&
- (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED))
- ieee80211_send_nullfunc(local, sdata, 1);
- }
- rcu_read_unlock();
-
- if (ssid) {
- local->scan_ssid_len = ssid_len;
- memcpy(local->scan_ssid, ssid, ssid_len);
- } else
- local->scan_ssid_len = 0;
- local->scan_state = SCAN_SET_CHANNEL;
- local->scan_channel_idx = 0;
- local->scan_band = IEEE80211_BAND_2GHZ;
- local->scan_dev = dev;
-
- netif_tx_lock_bh(local->mdev);
- local->filter_flags |= FIF_BCN_PRBRESP_PROMISC;
- local->ops->configure_filter(local_to_hw(local),
- FIF_BCN_PRBRESP_PROMISC,
- &local->filter_flags,
- local->mdev->mc_count,
- local->mdev->mc_list);
- netif_tx_unlock_bh(local->mdev);
-
- /* TODO: start scan as soon as all nullfunc frames are ACKed */
- queue_delayed_work(local->hw.workqueue, &local->scan_work,
- IEEE80211_CHANNEL_TIME);
-
- return 0;
-}
-
-
-int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
- return ieee80211_sta_start_scan(dev, ssid, ssid_len);
-
- if (local->sta_sw_scanning || local->sta_hw_scanning) {
- if (local->scan_dev == dev)
- return 0;
- return -EBUSY;
- }
-
- ifsta->scan_ssid_len = ssid_len;
- if (ssid_len)
- memcpy(ifsta->scan_ssid, ssid, ssid_len);
- set_bit(IEEE80211_STA_REQ_SCAN, &ifsta->request);
- queue_work(local->hw.workqueue, &ifsta->work);
- return 0;
-}
-
-static char *
-ieee80211_sta_scan_result(struct net_device *dev,
- struct ieee80211_sta_bss *bss,
- char *current_ev, char *end_buf)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct iw_event iwe;
-
- if (time_after(jiffies,
- bss->last_update + IEEE80211_SCAN_RESULT_EXPIRE))
- return current_ev;
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = SIOCGIWAP;
- iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
- memcpy(iwe.u.ap_addr.sa_data, bss->bssid, ETH_ALEN);
- current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
- IW_EV_ADDR_LEN);
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = SIOCGIWESSID;
- iwe.u.data.length = bss->ssid_len;
- iwe.u.data.flags = 1;
- current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
- bss->ssid);
-
- if (bss->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = SIOCGIWMODE;
- if (bss->capability & WLAN_CAPABILITY_ESS)
- iwe.u.mode = IW_MODE_MASTER;
- else
- iwe.u.mode = IW_MODE_ADHOC;
- current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
- IW_EV_UINT_LEN);
- }
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = SIOCGIWFREQ;
- iwe.u.freq.m = bss->freq;
- iwe.u.freq.e = 6;
- current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
- IW_EV_FREQ_LEN);
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = SIOCGIWFREQ;
- iwe.u.freq.m = ieee80211_frequency_to_channel(bss->freq);
- iwe.u.freq.e = 0;
- current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
- IW_EV_FREQ_LEN);
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVQUAL;
- iwe.u.qual.qual = bss->signal;
- iwe.u.qual.level = bss->rssi;
- iwe.u.qual.noise = bss->noise;
- iwe.u.qual.updated = local->wstats_flags;
- current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
- IW_EV_QUAL_LEN);
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = SIOCGIWENCODE;
- if (bss->capability & WLAN_CAPABILITY_PRIVACY)
- iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
- else
- iwe.u.data.flags = IW_ENCODE_DISABLED;
- iwe.u.data.length = 0;
- current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, "");
-
- if (bss && bss->wpa_ie) {
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVGENIE;
- iwe.u.data.length = bss->wpa_ie_len;
- current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
- bss->wpa_ie);
- }
-
- if (bss && bss->rsn_ie) {
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVGENIE;
- iwe.u.data.length = bss->rsn_ie_len;
- current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
- bss->rsn_ie);
- }
-
- if (bss && bss->supp_rates_len > 0) {
- /* display all supported rates in readable format */
- char *p = current_ev + IW_EV_LCP_LEN;
- int i;
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = SIOCGIWRATE;
- /* Those two flags are ignored... */
- iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
-
- for (i = 0; i < bss->supp_rates_len; i++) {
- iwe.u.bitrate.value = ((bss->supp_rates[i] &
- 0x7f) * 500000);
- p = iwe_stream_add_value(current_ev, p,
- end_buf, &iwe, IW_EV_PARAM_LEN);
- }
- current_ev = p;
- }
-
- if (bss) {
- char *buf;
- buf = kmalloc(30, GFP_ATOMIC);
- if (buf) {
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVCUSTOM;
- sprintf(buf, "tsf=%016llx", (unsigned long long)(bss->timestamp));
- iwe.u.data.length = strlen(buf);
- current_ev = iwe_stream_add_point(current_ev, end_buf,
- &iwe, buf);
- kfree(buf);
- }
- }
-
- return current_ev;
-}
-
-
-int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- char *current_ev = buf;
- char *end_buf = buf + len;
- struct ieee80211_sta_bss *bss;
-
- spin_lock_bh(&local->sta_bss_lock);
- list_for_each_entry(bss, &local->sta_bss_list, list) {
- if (buf + len - current_ev <= IW_EV_ADDR_LEN) {
- spin_unlock_bh(&local->sta_bss_lock);
- return -E2BIG;
- }
- current_ev = ieee80211_sta_scan_result(dev, bss, current_ev,
- end_buf);
- }
- spin_unlock_bh(&local->sta_bss_lock);
- return current_ev - buf;
-}
-
-
-int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- kfree(ifsta->extra_ie);
- if (len == 0) {
- ifsta->extra_ie = NULL;
- ifsta->extra_ie_len = 0;
- return 0;
- }
- ifsta->extra_ie = kmalloc(len, GFP_KERNEL);
- if (!ifsta->extra_ie) {
- ifsta->extra_ie_len = 0;
- return -ENOMEM;
- }
- memcpy(ifsta->extra_ie, ie, len);
- ifsta->extra_ie_len = len;
- return 0;
-}
-
-
-struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
- struct sk_buff *skb, u8 *bssid,
- u8 *addr)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- DECLARE_MAC_BUF(mac);
-
- /* TODO: Could consider removing the least recently used entry and
- * allow new one to be added. */
- if (local->num_sta >= IEEE80211_IBSS_MAX_STA_ENTRIES) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: No room for a new IBSS STA "
- "entry %s\n", dev->name, print_mac(mac, addr));
- }
- return NULL;
- }
-
- printk(KERN_DEBUG "%s: Adding new IBSS station %s (dev=%s)\n",
- wiphy_name(local->hw.wiphy), print_mac(mac, addr), dev->name);
-
- sta = sta_info_add(local, dev, addr, GFP_ATOMIC);
- if (!sta)
- return NULL;
-
- sta->flags |= WLAN_STA_AUTHORIZED;
-
- sta->supp_rates[local->hw.conf.channel->band] =
- sdata->u.sta.supp_rates_bits[local->hw.conf.channel->band];
-
- rate_control_rate_init(sta, local);
-
- return sta; /* caller will call sta_info_put() */
-}
-
-
-int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
-
- printk(KERN_DEBUG "%s: deauthenticate(reason=%d)\n",
- dev->name, reason);
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
- sdata->vif.type != IEEE80211_IF_TYPE_IBSS)
- return -EINVAL;
-
- ieee80211_send_deauth(dev, ifsta, reason);
- ieee80211_set_disassoc(dev, ifsta, 1);
- return 0;
-}
-
-
-int ieee80211_sta_disassociate(struct net_device *dev, u16 reason)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
-
- printk(KERN_DEBUG "%s: disassociate(reason=%d)\n",
- dev->name, reason);
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
- return -EINVAL;
-
- if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED))
- return -1;
-
- ieee80211_send_disassoc(dev, ifsta, reason);
- ieee80211_set_disassoc(dev, ifsta, 0);
- return 0;
-}
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005-2006, Devicescape Software, Inc.
- * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/if_ether.h>
-#include <linux/etherdevice.h>
-#include <linux/list.h>
-#include <linux/rcupdate.h>
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-#include "debugfs_key.h"
-#include "aes_ccm.h"
-
-
-/*
- * Key handling basics
- *
- * Key handling in mac80211 is done based on per-interface (sub_if_data)
- * keys and per-station keys. Since each station belongs to an interface,
- * each station key also belongs to that interface.
- *
- * Hardware acceleration is done on a best-effort basis, for each key
- * that is eligible the hardware is asked to enable that key but if
- * it cannot do that they key is simply kept for software encryption.
- * There is currently no way of knowing this except by looking into
- * debugfs.
- *
- * All operations here are called under RTNL so no extra locking is
- * required.
- */
-
-static const u8 bcast_addr[ETH_ALEN] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
-static const u8 zero_addr[ETH_ALEN];
-
-static const u8 *get_mac_for_key(struct ieee80211_key *key)
-{
- const u8 *addr = bcast_addr;
-
- /*
- * If we're an AP we won't ever receive frames with a non-WEP
- * group key so we tell the driver that by using the zero MAC
- * address to indicate a transmit-only key.
- */
- if (key->conf.alg != ALG_WEP &&
- (key->sdata->vif.type == IEEE80211_IF_TYPE_AP ||
- key->sdata->vif.type == IEEE80211_IF_TYPE_VLAN))
- addr = zero_addr;
-
- if (key->sta)
- addr = key->sta->addr;
-
- return addr;
-}
-
-static void ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
-{
- const u8 *addr;
- int ret;
- DECLARE_MAC_BUF(mac);
-
- if (!key->local->ops->set_key)
- return;
-
- addr = get_mac_for_key(key);
-
- ret = key->local->ops->set_key(local_to_hw(key->local), SET_KEY,
- key->sdata->dev->dev_addr, addr,
- &key->conf);
-
- if (!ret)
- key->flags |= KEY_FLAG_UPLOADED_TO_HARDWARE;
-
- if (ret && ret != -ENOSPC && ret != -EOPNOTSUPP)
- printk(KERN_ERR "mac80211-%s: failed to set key "
- "(%d, %s) to hardware (%d)\n",
- wiphy_name(key->local->hw.wiphy),
- key->conf.keyidx, print_mac(mac, addr), ret);
-}
-
-static void ieee80211_key_disable_hw_accel(struct ieee80211_key *key)
-{
- const u8 *addr;
- int ret;
- DECLARE_MAC_BUF(mac);
-
- if (!key->local->ops->set_key)
- return;
-
- if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
- return;
-
- addr = get_mac_for_key(key);
-
- ret = key->local->ops->set_key(local_to_hw(key->local), DISABLE_KEY,
- key->sdata->dev->dev_addr, addr,
- &key->conf);
-
- if (ret)
- printk(KERN_ERR "mac80211-%s: failed to remove key "
- "(%d, %s) from hardware (%d)\n",
- wiphy_name(key->local->hw.wiphy),
- key->conf.keyidx, print_mac(mac, addr), ret);
-
- key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE;
-}
-
-struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
- struct sta_info *sta,
- enum ieee80211_key_alg alg,
- int idx,
- size_t key_len,
- const u8 *key_data)
-{
- struct ieee80211_key *key;
-
- BUG_ON(idx < 0 || idx >= NUM_DEFAULT_KEYS);
-
- key = kzalloc(sizeof(struct ieee80211_key) + key_len, GFP_KERNEL);
- if (!key)
- return NULL;
-
- /*
- * Default to software encryption; we'll later upload the
- * key to the hardware if possible.
- */
- key->conf.flags = 0;
- key->flags = 0;
-
- key->conf.alg = alg;
- key->conf.keyidx = idx;
- key->conf.keylen = key_len;
- memcpy(key->conf.key, key_data, key_len);
-
- key->local = sdata->local;
- key->sdata = sdata;
- key->sta = sta;
-
- if (alg == ALG_CCMP) {
- /*
- * Initialize AES key state here as an optimization so that
- * it does not need to be initialized for every packet.
- */
- key->u.ccmp.tfm = ieee80211_aes_key_setup_encrypt(key_data);
- if (!key->u.ccmp.tfm) {
- ieee80211_key_free(key);
- return NULL;
- }
- }
-
- ieee80211_debugfs_key_add(key->local, key);
-
- /* remove key first */
- if (sta)
- ieee80211_key_free(sta->key);
- else
- ieee80211_key_free(sdata->keys[idx]);
-
- if (sta) {
- ieee80211_debugfs_key_sta_link(key, sta);
-
- /*
- * some hardware cannot handle TKIP with QoS, so
- * we indicate whether QoS could be in use.
- */
- if (sta->flags & WLAN_STA_WME)
- key->conf.flags |= IEEE80211_KEY_FLAG_WMM_STA;
- } else {
- if (sdata->vif.type == IEEE80211_IF_TYPE_STA) {
- struct sta_info *ap;
-
- /* same here, the AP could be using QoS */
- ap = sta_info_get(key->local, key->sdata->u.sta.bssid);
- if (ap) {
- if (ap->flags & WLAN_STA_WME)
- key->conf.flags |=
- IEEE80211_KEY_FLAG_WMM_STA;
- sta_info_put(ap);
- }
- }
- }
-
- /* enable hwaccel if appropriate */
- if (netif_running(key->sdata->dev))
- ieee80211_key_enable_hw_accel(key);
-
- if (sta)
- rcu_assign_pointer(sta->key, key);
- else
- rcu_assign_pointer(sdata->keys[idx], key);
-
- list_add(&key->list, &sdata->key_list);
-
- return key;
-}
-
-void ieee80211_key_free(struct ieee80211_key *key)
-{
- if (!key)
- return;
-
- if (key->sta) {
- rcu_assign_pointer(key->sta->key, NULL);
- } else {
- if (key->sdata->default_key == key)
- ieee80211_set_default_key(key->sdata, -1);
- if (key->conf.keyidx >= 0 &&
- key->conf.keyidx < NUM_DEFAULT_KEYS)
- rcu_assign_pointer(key->sdata->keys[key->conf.keyidx],
- NULL);
- else
- WARN_ON(1);
- }
-
- /* wait for all key users to complete */
- synchronize_rcu();
-
- /* remove from hwaccel if appropriate */
- ieee80211_key_disable_hw_accel(key);
-
- if (key->conf.alg == ALG_CCMP)
- ieee80211_aes_key_free(key->u.ccmp.tfm);
- ieee80211_debugfs_key_remove(key);
-
- list_del(&key->list);
-
- kfree(key);
-}
-
-void ieee80211_set_default_key(struct ieee80211_sub_if_data *sdata, int idx)
-{
- struct ieee80211_key *key = NULL;
-
- if (idx >= 0 && idx < NUM_DEFAULT_KEYS)
- key = sdata->keys[idx];
-
- if (sdata->default_key != key) {
- ieee80211_debugfs_key_remove_default(sdata);
-
- rcu_assign_pointer(sdata->default_key, key);
-
- if (sdata->default_key)
- ieee80211_debugfs_key_add_default(sdata);
- }
-}
-
-void ieee80211_free_keys(struct ieee80211_sub_if_data *sdata)
-{
- struct ieee80211_key *key, *tmp;
-
- list_for_each_entry_safe(key, tmp, &sdata->key_list, list)
- ieee80211_key_free(key);
-}
-
-void ieee80211_enable_keys(struct ieee80211_sub_if_data *sdata)
-{
- struct ieee80211_key *key;
-
- WARN_ON(!netif_running(sdata->dev));
- if (!netif_running(sdata->dev))
- return;
-
- list_for_each_entry(key, &sdata->key_list, list)
- ieee80211_key_enable_hw_accel(key);
-}
-
-void ieee80211_disable_keys(struct ieee80211_sub_if_data *sdata)
-{
- struct ieee80211_key *key;
-
- list_for_each_entry(key, &sdata->key_list, list)
- ieee80211_key_disable_hw_accel(key);
-}
+++ /dev/null
-/*
- * Michael MIC implementation - optimized for TKIP MIC operations
- * Copyright 2002-2003, Instant802 Networks, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/types.h>
-
-#include "michael.h"
-
-static inline u32 rotr(u32 val, int bits)
-{
- return (val >> bits) | (val << (32 - bits));
-}
-
-
-static inline u32 rotl(u32 val, int bits)
-{
- return (val << bits) | (val >> (32 - bits));
-}
-
-
-static inline u32 xswap(u32 val)
-{
- return ((val & 0xff00ff00) >> 8) | ((val & 0x00ff00ff) << 8);
-}
-
-
-#define michael_block(l, r) \
-do { \
- r ^= rotl(l, 17); \
- l += r; \
- r ^= xswap(l); \
- l += r; \
- r ^= rotl(l, 3); \
- l += r; \
- r ^= rotr(l, 2); \
- l += r; \
-} while (0)
-
-
-static inline u32 michael_get32(u8 *data)
-{
- return data[0] | (data[1] << 8) | (data[2] << 16) | (data[3] << 24);
-}
-
-
-static inline void michael_put32(u32 val, u8 *data)
-{
- data[0] = val & 0xff;
- data[1] = (val >> 8) & 0xff;
- data[2] = (val >> 16) & 0xff;
- data[3] = (val >> 24) & 0xff;
-}
-
-
-void michael_mic(u8 *key, u8 *da, u8 *sa, u8 priority,
- u8 *data, size_t data_len, u8 *mic)
-{
- u32 l, r, val;
- size_t block, blocks, left;
-
- l = michael_get32(key);
- r = michael_get32(key + 4);
-
- /* A pseudo header (DA, SA, Priority, 0, 0, 0) is used in Michael MIC
- * calculation, but it is _not_ transmitted */
- l ^= michael_get32(da);
- michael_block(l, r);
- l ^= da[4] | (da[5] << 8) | (sa[0] << 16) | (sa[1] << 24);
- michael_block(l, r);
- l ^= michael_get32(&sa[2]);
- michael_block(l, r);
- l ^= priority;
- michael_block(l, r);
-
- /* Real data */
- blocks = data_len / 4;
- left = data_len % 4;
-
- for (block = 0; block < blocks; block++) {
- l ^= michael_get32(&data[block * 4]);
- michael_block(l, r);
- }
-
- /* Partial block of 0..3 bytes and padding: 0x5a + 4..7 zeros to make
- * total length a multiple of 4. */
- val = 0x5a;
- while (left > 0) {
- val <<= 8;
- left--;
- val |= data[blocks * 4 + left];
- }
- l ^= val;
- michael_block(l, r);
- /* last block is zero, so l ^ 0 = l */
- michael_block(l, r);
-
- michael_put32(l, mic);
- michael_put32(r, mic + 4);
-}
+++ /dev/null
-/*
- * Michael MIC implementation - optimized for TKIP MIC operations
- * Copyright 2002-2003, Instant802 Networks, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef MICHAEL_H
-#define MICHAEL_H
-
-#include <linux/types.h>
-
-#define MICHAEL_MIC_LEN 8
-
-void michael_mic(u8 *key, u8 *da, u8 *sa, u8 priority,
- u8 *data, size_t data_len, u8 *mic);
-
-#endif /* MICHAEL_H */
+++ /dev/null
-/*
- * Copyright 2007, Mattias Nissler <mattias.nissler@gmx.de>
- * Copyright 2007, Stefano Brivio <stefano.brivio@polimi.it>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef RC80211_PID_H
-#define RC80211_PID_H
-
-/* Sampling period for measuring percentage of failed frames in ms. */
-#define RC_PID_INTERVAL 125
-
-/* Exponential averaging smoothness (used for I part of PID controller) */
-#define RC_PID_SMOOTHING_SHIFT 3
-#define RC_PID_SMOOTHING (1 << RC_PID_SMOOTHING_SHIFT)
-
-/* Sharpening factor (used for D part of PID controller) */
-#define RC_PID_SHARPENING_FACTOR 0
-#define RC_PID_SHARPENING_DURATION 0
-
-/* Fixed point arithmetic shifting amount. */
-#define RC_PID_ARITH_SHIFT 8
-
-/* Fixed point arithmetic factor. */
-#define RC_PID_ARITH_FACTOR (1 << RC_PID_ARITH_SHIFT)
-
-/* Proportional PID component coefficient. */
-#define RC_PID_COEFF_P 15
-/* Integral PID component coefficient. */
-#define RC_PID_COEFF_I 9
-/* Derivative PID component coefficient. */
-#define RC_PID_COEFF_D 15
-
-/* Target failed frames rate for the PID controller. NB: This effectively gives
- * maximum failed frames percentage we're willing to accept. If the wireless
- * link quality is good, the controller will fail to adjust failed frames
- * percentage to the target. This is intentional.
- */
-#define RC_PID_TARGET_PF 14
-
-/* Rate behaviour normalization quantity over time. */
-#define RC_PID_NORM_OFFSET 3
-
-/* Push high rates right after loading. */
-#define RC_PID_FAST_START 0
-
-/* Arithmetic right shift for positive and negative values for ISO C. */
-#define RC_PID_DO_ARITH_RIGHT_SHIFT(x, y) \
- (x) < 0 ? -((-(x)) >> (y)) : (x) >> (y)
-
-enum rc_pid_event_type {
- RC_PID_EVENT_TYPE_TX_STATUS,
- RC_PID_EVENT_TYPE_RATE_CHANGE,
- RC_PID_EVENT_TYPE_TX_RATE,
- RC_PID_EVENT_TYPE_PF_SAMPLE,
-};
-
-union rc_pid_event_data {
- /* RC_PID_EVENT_TX_STATUS */
- struct {
- struct ieee80211_tx_status tx_status;
- };
- /* RC_PID_EVENT_TYPE_RATE_CHANGE */
- /* RC_PID_EVENT_TYPE_TX_RATE */
- struct {
- int index;
- int rate;
- };
- /* RC_PID_EVENT_TYPE_PF_SAMPLE */
- struct {
- s32 pf_sample;
- s32 prop_err;
- s32 int_err;
- s32 der_err;
- };
-};
-
-struct rc_pid_event {
- /* The time when the event occured */
- unsigned long timestamp;
-
- /* Event ID number */
- unsigned int id;
-
- /* Type of event */
- enum rc_pid_event_type type;
-
- /* type specific data */
- union rc_pid_event_data data;
-};
-
-/* Size of the event ring buffer. */
-#define RC_PID_EVENT_RING_SIZE 32
-
-struct rc_pid_event_buffer {
- /* Counter that generates event IDs */
- unsigned int ev_count;
-
- /* Ring buffer of events */
- struct rc_pid_event ring[RC_PID_EVENT_RING_SIZE];
-
- /* Index to the entry in events_buf to be reused */
- unsigned int next_entry;
-
- /* Lock that guards against concurrent access to this buffer struct */
- spinlock_t lock;
-
- /* Wait queue for poll/select and blocking I/O */
- wait_queue_head_t waitqueue;
-};
-
-struct rc_pid_events_file_info {
- /* The event buffer we read */
- struct rc_pid_event_buffer *events;
-
- /* The entry we have should read next */
- unsigned int next_entry;
-};
-
-/**
- * struct rc_pid_debugfs_entries - tunable parameters
- *
- * Algorithm parameters, tunable via debugfs.
- * @dir: the debugfs directory for a specific phy
- * @target: target percentage for failed frames
- * @sampling_period: error sampling interval in milliseconds
- * @coeff_p: absolute value of the proportional coefficient
- * @coeff_i: absolute value of the integral coefficient
- * @coeff_d: absolute value of the derivative coefficient
- * @smoothing_shift: absolute value of the integral smoothing factor (i.e.
- * amount of smoothing introduced by the exponential moving average)
- * @sharpen_factor: absolute value of the derivative sharpening factor (i.e.
- * amount of emphasis given to the derivative term after low activity
- * events)
- * @sharpen_duration: duration of the sharpening effect after the detected low
- * activity event, relative to sampling_period
- * @norm_offset: amount of normalization periodically performed on the learnt
- * rate behaviour values (lower means we should trust more what we learnt
- * about behaviour of rates, higher means we should trust more the natural
- * ordering of rates)
- * @fast_start: if Y, push high rates right after initialization
- */
-struct rc_pid_debugfs_entries {
- struct dentry *dir;
- struct dentry *target;
- struct dentry *sampling_period;
- struct dentry *coeff_p;
- struct dentry *coeff_i;
- struct dentry *coeff_d;
- struct dentry *smoothing_shift;
- struct dentry *sharpen_factor;
- struct dentry *sharpen_duration;
- struct dentry *norm_offset;
- struct dentry *fast_start;
-};
-
-void rate_control_pid_event_tx_status(struct rc_pid_event_buffer *buf,
- struct ieee80211_tx_status *stat);
-
-void rate_control_pid_event_rate_change(struct rc_pid_event_buffer *buf,
- int index, int rate);
-
-void rate_control_pid_event_tx_rate(struct rc_pid_event_buffer *buf,
- int index, int rate);
-
-void rate_control_pid_event_pf_sample(struct rc_pid_event_buffer *buf,
- s32 pf_sample, s32 prop_err,
- s32 int_err, s32 der_err);
-
-void rate_control_pid_add_sta_debugfs(void *priv, void *priv_sta,
- struct dentry *dir);
-
-void rate_control_pid_remove_sta_debugfs(void *priv, void *priv_sta);
-
-struct rc_pid_sta_info {
- unsigned long last_change;
- unsigned long last_sample;
-
- u32 tx_num_failed;
- u32 tx_num_xmit;
-
- /* Average failed frames percentage error (i.e. actual vs. target
- * percentage), scaled by RC_PID_SMOOTHING. This value is computed
- * using using an exponential weighted average technique:
- *
- * (RC_PID_SMOOTHING - 1) * err_avg_old + err
- * err_avg = ------------------------------------------
- * RC_PID_SMOOTHING
- *
- * where err_avg is the new approximation, err_avg_old the previous one
- * and err is the error w.r.t. to the current failed frames percentage
- * sample. Note that the bigger RC_PID_SMOOTHING the more weight is
- * given to the previous estimate, resulting in smoother behavior (i.e.
- * corresponding to a longer integration window).
- *
- * For computation, we actually don't use the above formula, but this
- * one:
- *
- * err_avg_scaled = err_avg_old_scaled - err_avg_old + err
- *
- * where:
- * err_avg_scaled = err * RC_PID_SMOOTHING
- * err_avg_old_scaled = err_avg_old * RC_PID_SMOOTHING
- *
- * This avoids floating point numbers and the per_failed_old value can
- * easily be obtained by shifting per_failed_old_scaled right by
- * RC_PID_SMOOTHING_SHIFT.
- */
- s32 err_avg_sc;
-
- /* Last framed failes percentage sample. */
- u32 last_pf;
-
- /* Sharpening needed. */
- u8 sharp_cnt;
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- /* Event buffer */
- struct rc_pid_event_buffer events;
-
- /* Events debugfs file entry */
- struct dentry *events_entry;
-#endif
-};
-
-/* Algorithm parameters. We keep them on a per-algorithm approach, so they can
- * be tuned individually for each interface.
- */
-struct rc_pid_rateinfo {
-
- /* Map sorted rates to rates in ieee80211_hw_mode. */
- int index;
-
- /* Map rates in ieee80211_hw_mode to sorted rates. */
- int rev_index;
-
- /* Did we do any measurement on this rate? */
- bool valid;
-
- /* Comparison with the lowest rate. */
- int diff;
-};
-
-struct rc_pid_info {
-
- /* The failed frames percentage target. */
- unsigned int target;
-
- /* Rate at which failed frames percentage is sampled in 0.001s. */
- unsigned int sampling_period;
-
- /* P, I and D coefficients. */
- int coeff_p;
- int coeff_i;
- int coeff_d;
-
- /* Exponential averaging shift. */
- unsigned int smoothing_shift;
-
- /* Sharpening factor and duration. */
- unsigned int sharpen_factor;
- unsigned int sharpen_duration;
-
- /* Normalization offset. */
- unsigned int norm_offset;
-
- /* Fast starst parameter. */
- unsigned int fast_start;
-
- /* Rates information. */
- struct rc_pid_rateinfo *rinfo;
-
- /* Index of the last used rate. */
- int oldrate;
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- /* Debugfs entries created for the parameters above. */
- struct rc_pid_debugfs_entries dentries;
-#endif
-};
-
-#endif /* RC80211_PID_H */
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005, Devicescape Software, Inc.
- * Copyright 2007, Mattias Nissler <mattias.nissler@gmx.de>
- * Copyright 2007-2008, Stefano Brivio <stefano.brivio@polimi.it>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/skbuff.h>
-#include <linux/debugfs.h>
-#include <net/mac80211.h>
-#include "ieee80211_rate.h"
-
-#include "rc80211_pid.h"
-
-
-/* This is an implementation of a TX rate control algorithm that uses a PID
- * controller. Given a target failed frames rate, the controller decides about
- * TX rate changes to meet the target failed frames rate.
- *
- * The controller basically computes the following:
- *
- * adj = CP * err + CI * err_avg + CD * (err - last_err) * (1 + sharpening)
- *
- * where
- * adj adjustment value that is used to switch TX rate (see below)
- * err current error: target vs. current failed frames percentage
- * last_err last error
- * err_avg average (i.e. poor man's integral) of recent errors
- * sharpening non-zero when fast response is needed (i.e. right after
- * association or no frames sent for a long time), heading
- * to zero over time
- * CP Proportional coefficient
- * CI Integral coefficient
- * CD Derivative coefficient
- *
- * CP, CI, CD are subject to careful tuning.
- *
- * The integral component uses a exponential moving average approach instead of
- * an actual sliding window. The advantage is that we don't need to keep an
- * array of the last N error values and computation is easier.
- *
- * Once we have the adj value, we map it to a rate by means of a learning
- * algorithm. This algorithm keeps the state of the percentual failed frames
- * difference between rates. The behaviour of the lowest available rate is kept
- * as a reference value, and every time we switch between two rates, we compute
- * the difference between the failed frames each rate exhibited. By doing so,
- * we compare behaviours which different rates exhibited in adjacent timeslices,
- * thus the comparison is minimally affected by external conditions. This
- * difference gets propagated to the whole set of measurements, so that the
- * reference is always the same. Periodically, we normalize this set so that
- * recent events weigh the most. By comparing the adj value with this set, we
- * avoid pejorative switches to lower rates and allow for switches to higher
- * rates if they behaved well.
- *
- * Note that for the computations we use a fixed-point representation to avoid
- * floating point arithmetic. Hence, all values are shifted left by
- * RC_PID_ARITH_SHIFT.
- */
-
-
-/* Adjust the rate while ensuring that we won't switch to a lower rate if it
- * exhibited a worse failed frames behaviour and we'll choose the highest rate
- * whose failed frames behaviour is not worse than the one of the original rate
- * target. While at it, check that the new rate is valid. */
-static void rate_control_pid_adjust_rate(struct ieee80211_local *local,
- struct sta_info *sta, int adj,
- struct rc_pid_rateinfo *rinfo)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_supported_band *sband;
- int cur_sorted, new_sorted, probe, tmp, n_bitrates, band;
- int cur = sta->txrate_idx;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
- band = sband->band;
- n_bitrates = sband->n_bitrates;
-
- /* Map passed arguments to sorted values. */
- cur_sorted = rinfo[cur].rev_index;
- new_sorted = cur_sorted + adj;
-
- /* Check limits. */
- if (new_sorted < 0)
- new_sorted = rinfo[0].rev_index;
- else if (new_sorted >= n_bitrates)
- new_sorted = rinfo[n_bitrates - 1].rev_index;
-
- tmp = new_sorted;
-
- if (adj < 0) {
- /* Ensure that the rate decrease isn't disadvantageous. */
- for (probe = cur_sorted; probe >= new_sorted; probe--)
- if (rinfo[probe].diff <= rinfo[cur_sorted].diff &&
- rate_supported(sta, band, rinfo[probe].index))
- tmp = probe;
- } else {
- /* Look for rate increase with zero (or below) cost. */
- for (probe = new_sorted + 1; probe < n_bitrates; probe++)
- if (rinfo[probe].diff <= rinfo[new_sorted].diff &&
- rate_supported(sta, band, rinfo[probe].index))
- tmp = probe;
- }
-
- /* Fit the rate found to the nearest supported rate. */
- do {
- if (rate_supported(sta, band, rinfo[tmp].index)) {
- sta->txrate_idx = rinfo[tmp].index;
- break;
- }
- if (adj < 0)
- tmp--;
- else
- tmp++;
- } while (tmp < n_bitrates && tmp >= 0);
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- rate_control_pid_event_rate_change(
- &((struct rc_pid_sta_info *)sta->rate_ctrl_priv)->events,
- sta->txrate_idx, sband->bitrates[sta->txrate_idx].bitrate);
-#endif
-}
-
-/* Normalize the failed frames per-rate differences. */
-static void rate_control_pid_normalize(struct rc_pid_info *pinfo, int l)
-{
- int i, norm_offset = pinfo->norm_offset;
- struct rc_pid_rateinfo *r = pinfo->rinfo;
-
- if (r[0].diff > norm_offset)
- r[0].diff -= norm_offset;
- else if (r[0].diff < -norm_offset)
- r[0].diff += norm_offset;
- for (i = 0; i < l - 1; i++)
- if (r[i + 1].diff > r[i].diff + norm_offset)
- r[i + 1].diff -= norm_offset;
- else if (r[i + 1].diff <= r[i].diff)
- r[i + 1].diff += norm_offset;
-}
-
-static void rate_control_pid_sample(struct rc_pid_info *pinfo,
- struct ieee80211_local *local,
- struct sta_info *sta)
-{
- struct rc_pid_sta_info *spinfo = sta->rate_ctrl_priv;
- struct rc_pid_rateinfo *rinfo = pinfo->rinfo;
- struct ieee80211_supported_band *sband;
- u32 pf;
- s32 err_avg;
- u32 err_prop;
- u32 err_int;
- u32 err_der;
- int adj, i, j, tmp;
- unsigned long period;
-
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
- spinfo = sta->rate_ctrl_priv;
-
- /* In case nothing happened during the previous control interval, turn
- * the sharpening factor on. */
- period = (HZ * pinfo->sampling_period + 500) / 1000;
- if (!period)
- period = 1;
- if (jiffies - spinfo->last_sample > 2 * period)
- spinfo->sharp_cnt = pinfo->sharpen_duration;
-
- spinfo->last_sample = jiffies;
-
- /* This should never happen, but in case, we assume the old sample is
- * still a good measurement and copy it. */
- if (unlikely(spinfo->tx_num_xmit == 0))
- pf = spinfo->last_pf;
- else {
- pf = spinfo->tx_num_failed * 100 / spinfo->tx_num_xmit;
- pf <<= RC_PID_ARITH_SHIFT;
- }
-
- spinfo->tx_num_xmit = 0;
- spinfo->tx_num_failed = 0;
-
- /* If we just switched rate, update the rate behaviour info. */
- if (pinfo->oldrate != sta->txrate_idx) {
-
- i = rinfo[pinfo->oldrate].rev_index;
- j = rinfo[sta->txrate_idx].rev_index;
-
- tmp = (pf - spinfo->last_pf);
- tmp = RC_PID_DO_ARITH_RIGHT_SHIFT(tmp, RC_PID_ARITH_SHIFT);
-
- rinfo[j].diff = rinfo[i].diff + tmp;
- pinfo->oldrate = sta->txrate_idx;
- }
- rate_control_pid_normalize(pinfo, sband->n_bitrates);
-
- /* Compute the proportional, integral and derivative errors. */
- err_prop = (pinfo->target << RC_PID_ARITH_SHIFT) - pf;
-
- err_avg = spinfo->err_avg_sc >> pinfo->smoothing_shift;
- spinfo->err_avg_sc = spinfo->err_avg_sc - err_avg + err_prop;
- err_int = spinfo->err_avg_sc >> pinfo->smoothing_shift;
-
- err_der = (pf - spinfo->last_pf) *
- (1 + pinfo->sharpen_factor * spinfo->sharp_cnt);
- spinfo->last_pf = pf;
- if (spinfo->sharp_cnt)
- spinfo->sharp_cnt--;
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- rate_control_pid_event_pf_sample(&spinfo->events, pf, err_prop, err_int,
- err_der);
-#endif
-
- /* Compute the controller output. */
- adj = (err_prop * pinfo->coeff_p + err_int * pinfo->coeff_i
- + err_der * pinfo->coeff_d);
- adj = RC_PID_DO_ARITH_RIGHT_SHIFT(adj, 2 * RC_PID_ARITH_SHIFT);
-
- /* Change rate. */
- if (adj)
- rate_control_pid_adjust_rate(local, sta, adj, rinfo);
-}
-
-static void rate_control_pid_tx_status(void *priv, struct net_device *dev,
- struct sk_buff *skb,
- struct ieee80211_tx_status *status)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct ieee80211_sub_if_data *sdata;
- struct rc_pid_info *pinfo = priv;
- struct sta_info *sta;
- struct rc_pid_sta_info *spinfo;
- unsigned long period;
- struct ieee80211_supported_band *sband;
-
- sta = sta_info_get(local, hdr->addr1);
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
- if (!sta)
- return;
-
- /* Don't update the state if we're not controlling the rate. */
- sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
- if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) {
- sta->txrate_idx = sdata->bss->max_ratectrl_rateidx;
- return;
- }
-
- /* Ignore all frames that were sent with a different rate than the rate
- * we currently advise mac80211 to use. */
- if (status->control.tx_rate != &sband->bitrates[sta->txrate_idx])
- goto ignore;
-
- spinfo = sta->rate_ctrl_priv;
- spinfo->tx_num_xmit++;
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- rate_control_pid_event_tx_status(&spinfo->events, status);
-#endif
-
- /* We count frames that totally failed to be transmitted as two bad
- * frames, those that made it out but had some retries as one good and
- * one bad frame. */
- if (status->excessive_retries) {
- spinfo->tx_num_failed += 2;
- spinfo->tx_num_xmit++;
- } else if (status->retry_count) {
- spinfo->tx_num_failed++;
- spinfo->tx_num_xmit++;
- }
-
- if (status->excessive_retries) {
- sta->tx_retry_failed++;
- sta->tx_num_consecutive_failures++;
- sta->tx_num_mpdu_fail++;
- } else {
- sta->last_ack_rssi[0] = sta->last_ack_rssi[1];
- sta->last_ack_rssi[1] = sta->last_ack_rssi[2];
- sta->last_ack_rssi[2] = status->ack_signal;
- sta->tx_num_consecutive_failures = 0;
- sta->tx_num_mpdu_ok++;
- }
- sta->tx_retry_count += status->retry_count;
- sta->tx_num_mpdu_fail += status->retry_count;
-
- /* Update PID controller state. */
- period = (HZ * pinfo->sampling_period + 500) / 1000;
- if (!period)
- period = 1;
- if (time_after(jiffies, spinfo->last_sample + period))
- rate_control_pid_sample(pinfo, local, sta);
-
-ignore:
- sta_info_put(sta);
-}
-
-static void rate_control_pid_get_rate(void *priv, struct net_device *dev,
- struct ieee80211_supported_band *sband,
- struct sk_buff *skb,
- struct rate_selection *sel)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct ieee80211_sub_if_data *sdata;
- struct sta_info *sta;
- int rateidx;
- u16 fc;
-
- sta = sta_info_get(local, hdr->addr1);
-
- /* Send management frames and broadcast/multicast data using lowest
- * rate. */
- fc = le16_to_cpu(hdr->frame_control);
- if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
- is_multicast_ether_addr(hdr->addr1) || !sta) {
- sel->rate = rate_lowest(local, sband, sta);
- if (sta)
- sta_info_put(sta);
- return;
- }
-
- /* If a forced rate is in effect, select it. */
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->bss && sdata->bss->force_unicast_rateidx > -1)
- sta->txrate_idx = sdata->bss->force_unicast_rateidx;
-
- rateidx = sta->txrate_idx;
-
- if (rateidx >= sband->n_bitrates)
- rateidx = sband->n_bitrates - 1;
-
- sta->last_txrate_idx = rateidx;
-
- sta_info_put(sta);
-
- sel->rate = &sband->bitrates[rateidx];
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- rate_control_pid_event_tx_rate(
- &((struct rc_pid_sta_info *) sta->rate_ctrl_priv)->events,
- rateidx, sband->bitrates[rateidx].bitrate);
-#endif
-}
-
-static void rate_control_pid_rate_init(void *priv, void *priv_sta,
- struct ieee80211_local *local,
- struct sta_info *sta)
-{
- /* TODO: This routine should consider using RSSI from previous packets
- * as we need to have IEEE 802.1X auth succeed immediately after assoc..
- * Until that method is implemented, we will use the lowest supported
- * rate as a workaround. */
- struct ieee80211_supported_band *sband;
-
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
- sta->txrate_idx = rate_lowest_index(local, sband, sta);
-}
-
-static void *rate_control_pid_alloc(struct ieee80211_local *local)
-{
- struct rc_pid_info *pinfo;
- struct rc_pid_rateinfo *rinfo;
- struct ieee80211_supported_band *sband;
- int i, j, tmp;
- bool s;
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct rc_pid_debugfs_entries *de;
-#endif
-
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
- pinfo = kmalloc(sizeof(*pinfo), GFP_ATOMIC);
- if (!pinfo)
- return NULL;
-
- /* We can safely assume that sband won't change unless we get
- * reinitialized. */
- rinfo = kmalloc(sizeof(*rinfo) * sband->n_bitrates, GFP_ATOMIC);
- if (!rinfo) {
- kfree(pinfo);
- return NULL;
- }
-
- /* Sort the rates. This is optimized for the most common case (i.e.
- * almost-sorted CCK+OFDM rates). Kind of bubble-sort with reversed
- * mapping too. */
- for (i = 0; i < sband->n_bitrates; i++) {
- rinfo[i].index = i;
- rinfo[i].rev_index = i;
- if (pinfo->fast_start)
- rinfo[i].diff = 0;
- else
- rinfo[i].diff = i * pinfo->norm_offset;
- }
- for (i = 1; i < sband->n_bitrates; i++) {
- s = 0;
- for (j = 0; j < sband->n_bitrates - i; j++)
- if (unlikely(sband->bitrates[rinfo[j].index].bitrate >
- sband->bitrates[rinfo[j + 1].index].bitrate)) {
- tmp = rinfo[j].index;
- rinfo[j].index = rinfo[j + 1].index;
- rinfo[j + 1].index = tmp;
- rinfo[rinfo[j].index].rev_index = j;
- rinfo[rinfo[j + 1].index].rev_index = j + 1;
- s = 1;
- }
- if (!s)
- break;
- }
-
- pinfo->target = RC_PID_TARGET_PF;
- pinfo->sampling_period = RC_PID_INTERVAL;
- pinfo->coeff_p = RC_PID_COEFF_P;
- pinfo->coeff_i = RC_PID_COEFF_I;
- pinfo->coeff_d = RC_PID_COEFF_D;
- pinfo->smoothing_shift = RC_PID_SMOOTHING_SHIFT;
- pinfo->sharpen_factor = RC_PID_SHARPENING_FACTOR;
- pinfo->sharpen_duration = RC_PID_SHARPENING_DURATION;
- pinfo->norm_offset = RC_PID_NORM_OFFSET;
- pinfo->fast_start = RC_PID_FAST_START;
- pinfo->rinfo = rinfo;
- pinfo->oldrate = 0;
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- de = &pinfo->dentries;
- de->dir = debugfs_create_dir("rc80211_pid",
- local->hw.wiphy->debugfsdir);
- de->target = debugfs_create_u32("target_pf", S_IRUSR | S_IWUSR,
- de->dir, &pinfo->target);
- de->sampling_period = debugfs_create_u32("sampling_period",
- S_IRUSR | S_IWUSR, de->dir,
- &pinfo->sampling_period);
- de->coeff_p = debugfs_create_u32("coeff_p", S_IRUSR | S_IWUSR,
- de->dir, &pinfo->coeff_p);
- de->coeff_i = debugfs_create_u32("coeff_i", S_IRUSR | S_IWUSR,
- de->dir, &pinfo->coeff_i);
- de->coeff_d = debugfs_create_u32("coeff_d", S_IRUSR | S_IWUSR,
- de->dir, &pinfo->coeff_d);
- de->smoothing_shift = debugfs_create_u32("smoothing_shift",
- S_IRUSR | S_IWUSR, de->dir,
- &pinfo->smoothing_shift);
- de->sharpen_factor = debugfs_create_u32("sharpen_factor",
- S_IRUSR | S_IWUSR, de->dir,
- &pinfo->sharpen_factor);
- de->sharpen_duration = debugfs_create_u32("sharpen_duration",
- S_IRUSR | S_IWUSR, de->dir,
- &pinfo->sharpen_duration);
- de->norm_offset = debugfs_create_u32("norm_offset",
- S_IRUSR | S_IWUSR, de->dir,
- &pinfo->norm_offset);
- de->fast_start = debugfs_create_bool("fast_start",
- S_IRUSR | S_IWUSR, de->dir,
- &pinfo->fast_start);
-#endif
-
- return pinfo;
-}
-
-static void rate_control_pid_free(void *priv)
-{
- struct rc_pid_info *pinfo = priv;
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct rc_pid_debugfs_entries *de = &pinfo->dentries;
-
- debugfs_remove(de->fast_start);
- debugfs_remove(de->norm_offset);
- debugfs_remove(de->sharpen_duration);
- debugfs_remove(de->sharpen_factor);
- debugfs_remove(de->smoothing_shift);
- debugfs_remove(de->coeff_d);
- debugfs_remove(de->coeff_i);
- debugfs_remove(de->coeff_p);
- debugfs_remove(de->sampling_period);
- debugfs_remove(de->target);
- debugfs_remove(de->dir);
-#endif
-
- kfree(pinfo->rinfo);
- kfree(pinfo);
-}
-
-static void rate_control_pid_clear(void *priv)
-{
-}
-
-static void *rate_control_pid_alloc_sta(void *priv, gfp_t gfp)
-{
- struct rc_pid_sta_info *spinfo;
-
- spinfo = kzalloc(sizeof(*spinfo), gfp);
- if (spinfo == NULL)
- return NULL;
-
- spinfo->last_sample = jiffies;
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- spin_lock_init(&spinfo->events.lock);
- init_waitqueue_head(&spinfo->events.waitqueue);
-#endif
-
- return spinfo;
-}
-
-static void rate_control_pid_free_sta(void *priv, void *priv_sta)
-{
- struct rc_pid_sta_info *spinfo = priv_sta;
- kfree(spinfo);
-}
-
-static struct rate_control_ops mac80211_rcpid = {
- .name = "pid",
- .tx_status = rate_control_pid_tx_status,
- .get_rate = rate_control_pid_get_rate,
- .rate_init = rate_control_pid_rate_init,
- .clear = rate_control_pid_clear,
- .alloc = rate_control_pid_alloc,
- .free = rate_control_pid_free,
- .alloc_sta = rate_control_pid_alloc_sta,
- .free_sta = rate_control_pid_free_sta,
-#ifdef CONFIG_MAC80211_DEBUGFS
- .add_sta_debugfs = rate_control_pid_add_sta_debugfs,
- .remove_sta_debugfs = rate_control_pid_remove_sta_debugfs,
-#endif
-};
-
-MODULE_DESCRIPTION("PID controller based rate control algorithm");
-MODULE_AUTHOR("Stefano Brivio");
-MODULE_AUTHOR("Mattias Nissler");
-MODULE_LICENSE("GPL");
-
-int __init rc80211_pid_init(void)
-{
- return ieee80211_rate_control_register(&mac80211_rcpid);
-}
-
-void rc80211_pid_exit(void)
-{
- ieee80211_rate_control_unregister(&mac80211_rcpid);
-}
-
-#ifdef CONFIG_MAC80211_RC_PID_MODULE
-module_init(rc80211_pid_init);
-module_exit(rc80211_pid_exit);
-#endif
+++ /dev/null
-/*
- * Copyright 2007, Mattias Nissler <mattias.nissler@gmx.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/spinlock.h>
-#include <linux/poll.h>
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/skbuff.h>
-
-#include <net/mac80211.h>
-#include "ieee80211_rate.h"
-
-#include "rc80211_pid.h"
-
-static void rate_control_pid_event(struct rc_pid_event_buffer *buf,
- enum rc_pid_event_type type,
- union rc_pid_event_data *data)
-{
- struct rc_pid_event *ev;
- unsigned long status;
-
- spin_lock_irqsave(&buf->lock, status);
- ev = &(buf->ring[buf->next_entry]);
- buf->next_entry = (buf->next_entry + 1) % RC_PID_EVENT_RING_SIZE;
-
- ev->timestamp = jiffies;
- ev->id = buf->ev_count++;
- ev->type = type;
- ev->data = *data;
-
- spin_unlock_irqrestore(&buf->lock, status);
-
- wake_up_all(&buf->waitqueue);
-}
-
-void rate_control_pid_event_tx_status(struct rc_pid_event_buffer *buf,
- struct ieee80211_tx_status *stat)
-{
- union rc_pid_event_data evd;
-
- memcpy(&evd.tx_status, stat, sizeof(struct ieee80211_tx_status));
- rate_control_pid_event(buf, RC_PID_EVENT_TYPE_TX_STATUS, &evd);
-}
-
-void rate_control_pid_event_rate_change(struct rc_pid_event_buffer *buf,
- int index, int rate)
-{
- union rc_pid_event_data evd;
-
- evd.index = index;
- evd.rate = rate;
- rate_control_pid_event(buf, RC_PID_EVENT_TYPE_RATE_CHANGE, &evd);
-}
-
-void rate_control_pid_event_tx_rate(struct rc_pid_event_buffer *buf,
- int index, int rate)
-{
- union rc_pid_event_data evd;
-
- evd.index = index;
- evd.rate = rate;
- rate_control_pid_event(buf, RC_PID_EVENT_TYPE_TX_RATE, &evd);
-}
-
-void rate_control_pid_event_pf_sample(struct rc_pid_event_buffer *buf,
- s32 pf_sample, s32 prop_err,
- s32 int_err, s32 der_err)
-{
- union rc_pid_event_data evd;
-
- evd.pf_sample = pf_sample;
- evd.prop_err = prop_err;
- evd.int_err = int_err;
- evd.der_err = der_err;
- rate_control_pid_event(buf, RC_PID_EVENT_TYPE_PF_SAMPLE, &evd);
-}
-
-static int rate_control_pid_events_open(struct inode *inode, struct file *file)
-{
- struct rc_pid_sta_info *sinfo = inode->i_private;
- struct rc_pid_event_buffer *events = &sinfo->events;
- struct rc_pid_events_file_info *file_info;
- unsigned int status;
-
- /* Allocate a state struct */
- file_info = kmalloc(sizeof(*file_info), GFP_KERNEL);
- if (file_info == NULL)
- return -ENOMEM;
-
- spin_lock_irqsave(&events->lock, status);
-
- file_info->next_entry = events->next_entry;
- file_info->events = events;
-
- spin_unlock_irqrestore(&events->lock, status);
-
- file->private_data = file_info;
-
- return 0;
-}
-
-static int rate_control_pid_events_release(struct inode *inode,
- struct file *file)
-{
- struct rc_pid_events_file_info *file_info = file->private_data;
-
- kfree(file_info);
-
- return 0;
-}
-
-static unsigned int rate_control_pid_events_poll(struct file *file,
- poll_table *wait)
-{
- struct rc_pid_events_file_info *file_info = file->private_data;
-
- poll_wait(file, &file_info->events->waitqueue, wait);
-
- return POLLIN | POLLRDNORM;
-}
-
-#define RC_PID_PRINT_BUF_SIZE 64
-
-static ssize_t rate_control_pid_events_read(struct file *file, char __user *buf,
- size_t length, loff_t *offset)
-{
- struct rc_pid_events_file_info *file_info = file->private_data;
- struct rc_pid_event_buffer *events = file_info->events;
- struct rc_pid_event *ev;
- char pb[RC_PID_PRINT_BUF_SIZE];
- int ret;
- int p;
- unsigned int status;
-
- /* Check if there is something to read. */
- if (events->next_entry == file_info->next_entry) {
- if (file->f_flags & O_NONBLOCK)
- return -EAGAIN;
-
- /* Wait */
- ret = wait_event_interruptible(events->waitqueue,
- events->next_entry != file_info->next_entry);
-
- if (ret)
- return ret;
- }
-
- /* Write out one event per call. I don't care whether it's a little
- * inefficient, this is debugging code anyway. */
- spin_lock_irqsave(&events->lock, status);
-
- /* Get an event */
- ev = &(events->ring[file_info->next_entry]);
- file_info->next_entry = (file_info->next_entry + 1) %
- RC_PID_EVENT_RING_SIZE;
-
- /* Print information about the event. Note that userpace needs to
- * provide large enough buffers. */
- length = length < RC_PID_PRINT_BUF_SIZE ?
- length : RC_PID_PRINT_BUF_SIZE;
- p = snprintf(pb, length, "%u %lu ", ev->id, ev->timestamp);
- switch (ev->type) {
- case RC_PID_EVENT_TYPE_TX_STATUS:
- p += snprintf(pb + p, length - p, "tx_status %u %u",
- ev->data.tx_status.excessive_retries,
- ev->data.tx_status.retry_count);
- break;
- case RC_PID_EVENT_TYPE_RATE_CHANGE:
- p += snprintf(pb + p, length - p, "rate_change %d %d",
- ev->data.index, ev->data.rate);
- break;
- case RC_PID_EVENT_TYPE_TX_RATE:
- p += snprintf(pb + p, length - p, "tx_rate %d %d",
- ev->data.index, ev->data.rate);
- break;
- case RC_PID_EVENT_TYPE_PF_SAMPLE:
- p += snprintf(pb + p, length - p,
- "pf_sample %d %d %d %d",
- ev->data.pf_sample, ev->data.prop_err,
- ev->data.int_err, ev->data.der_err);
- break;
- }
- p += snprintf(pb + p, length - p, "\n");
-
- spin_unlock_irqrestore(&events->lock, status);
-
- if (copy_to_user(buf, pb, p))
- return -EFAULT;
-
- return p;
-}
-
-#undef RC_PID_PRINT_BUF_SIZE
-
-static struct file_operations rc_pid_fop_events = {
- .owner = THIS_MODULE,
- .read = rate_control_pid_events_read,
- .poll = rate_control_pid_events_poll,
- .open = rate_control_pid_events_open,
- .release = rate_control_pid_events_release,
-};
-
-void rate_control_pid_add_sta_debugfs(void *priv, void *priv_sta,
- struct dentry *dir)
-{
- struct rc_pid_sta_info *spinfo = priv_sta;
-
- spinfo->events_entry = debugfs_create_file("rc_pid_events", S_IRUGO,
- dir, spinfo,
- &rc_pid_fop_events);
-}
-
-void rate_control_pid_remove_sta_debugfs(void *priv, void *priv_sta)
-{
- struct rc_pid_sta_info *spinfo = priv_sta;
-
- debugfs_remove(spinfo->events_entry);
-}
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005, Devicescape Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-#include <linux/compiler.h>
-#include <linux/module.h>
-
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-#include "debugfs.h"
-
-
-/* This is a minimal implementation of TX rate controlling that can be used
- * as the default when no improved mechanisms are available. */
-
-#define RATE_CONTROL_NUM_DOWN 20
-#define RATE_CONTROL_NUM_UP 15
-
-#define RATE_CONTROL_EMERG_DEC 2
-#define RATE_CONTROL_INTERVAL (HZ / 20)
-#define RATE_CONTROL_MIN_TX 10
-
-static void rate_control_rate_inc(struct ieee80211_local *local,
- struct sta_info *sta)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_supported_band *sband;
- int i = sta->txrate_idx;
- int maxrate;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
- if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) {
- /* forced unicast rate - do not change STA rate */
- return;
- }
-
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
- maxrate = sdata->bss ? sdata->bss->max_ratectrl_rateidx : -1;
-
- if (i > sband->n_bitrates)
- i = sband->n_bitrates - 2;
-
- while (i + 1 < sband->n_bitrates) {
- i++;
- if (rate_supported(sta, sband->band, i) &&
- (maxrate < 0 || i <= maxrate)) {
- sta->txrate_idx = i;
- break;
- }
- }
-}
-
-
-static void rate_control_rate_dec(struct ieee80211_local *local,
- struct sta_info *sta)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_supported_band *sband;
- int i = sta->txrate_idx;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
- if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) {
- /* forced unicast rate - do not change STA rate */
- return;
- }
-
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
- if (i > sband->n_bitrates)
- i = sband->n_bitrates;
-
- while (i > 0) {
- i--;
- if (rate_supported(sta, sband->band, i)) {
- sta->txrate_idx = i;
- break;
- }
- }
-}
-
-struct global_rate_control {
- int dummy;
-};
-
-struct sta_rate_control {
- unsigned long last_rate_change;
- u32 tx_num_failures;
- u32 tx_num_xmit;
-
- unsigned long avg_rate_update;
- u32 tx_avg_rate_sum;
- u32 tx_avg_rate_num;
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct dentry *tx_avg_rate_sum_dentry;
- struct dentry *tx_avg_rate_num_dentry;
-#endif
-};
-
-
-static void rate_control_simple_tx_status(void *priv, struct net_device *dev,
- struct sk_buff *skb,
- struct ieee80211_tx_status *status)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct sta_info *sta;
- struct sta_rate_control *srctrl;
-
- sta = sta_info_get(local, hdr->addr1);
-
- if (!sta)
- return;
-
- srctrl = sta->rate_ctrl_priv;
- srctrl->tx_num_xmit++;
- if (status->excessive_retries) {
- srctrl->tx_num_failures++;
- sta->tx_retry_failed++;
- sta->tx_num_consecutive_failures++;
- sta->tx_num_mpdu_fail++;
- } else {
- sta->last_ack_rssi[0] = sta->last_ack_rssi[1];
- sta->last_ack_rssi[1] = sta->last_ack_rssi[2];
- sta->last_ack_rssi[2] = status->ack_signal;
- sta->tx_num_consecutive_failures = 0;
- sta->tx_num_mpdu_ok++;
- }
- sta->tx_retry_count += status->retry_count;
- sta->tx_num_mpdu_fail += status->retry_count;
-
- if (time_after(jiffies,
- srctrl->last_rate_change + RATE_CONTROL_INTERVAL) &&
- srctrl->tx_num_xmit > RATE_CONTROL_MIN_TX) {
- u32 per_failed;
- srctrl->last_rate_change = jiffies;
-
- per_failed = (100 * sta->tx_num_mpdu_fail) /
- (sta->tx_num_mpdu_fail + sta->tx_num_mpdu_ok);
- /* TODO: calculate average per_failed to make adjusting
- * parameters easier */
-#if 0
- if (net_ratelimit()) {
- printk(KERN_DEBUG "MPDU fail=%d ok=%d per_failed=%d\n",
- sta->tx_num_mpdu_fail, sta->tx_num_mpdu_ok,
- per_failed);
- }
-#endif
-
- /*
- * XXX: Make these configurable once we have an
- * interface to the rate control algorithms
- */
- if (per_failed > RATE_CONTROL_NUM_DOWN) {
- rate_control_rate_dec(local, sta);
- } else if (per_failed < RATE_CONTROL_NUM_UP) {
- rate_control_rate_inc(local, sta);
- }
- srctrl->tx_avg_rate_sum += status->control.tx_rate->bitrate;
- srctrl->tx_avg_rate_num++;
- srctrl->tx_num_failures = 0;
- srctrl->tx_num_xmit = 0;
- } else if (sta->tx_num_consecutive_failures >=
- RATE_CONTROL_EMERG_DEC) {
- rate_control_rate_dec(local, sta);
- }
-
- if (srctrl->avg_rate_update + 60 * HZ < jiffies) {
- srctrl->avg_rate_update = jiffies;
- if (srctrl->tx_avg_rate_num > 0) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- DECLARE_MAC_BUF(mac);
- printk(KERN_DEBUG "%s: STA %s Average rate: "
- "%d (%d/%d)\n",
- dev->name, print_mac(mac, sta->addr),
- srctrl->tx_avg_rate_sum /
- srctrl->tx_avg_rate_num,
- srctrl->tx_avg_rate_sum,
- srctrl->tx_avg_rate_num);
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- srctrl->tx_avg_rate_sum = 0;
- srctrl->tx_avg_rate_num = 0;
- }
- }
-
- sta_info_put(sta);
-}
-
-
-static void
-rate_control_simple_get_rate(void *priv, struct net_device *dev,
- struct ieee80211_supported_band *sband,
- struct sk_buff *skb,
- struct rate_selection *sel)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct ieee80211_sub_if_data *sdata;
- struct sta_info *sta;
- int rateidx;
- u16 fc;
-
- sta = sta_info_get(local, hdr->addr1);
-
- /* Send management frames and broadcast/multicast data using lowest
- * rate. */
- fc = le16_to_cpu(hdr->frame_control);
- if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
- is_multicast_ether_addr(hdr->addr1) || !sta) {
- sel->rate = rate_lowest(local, sband, sta);
- if (sta)
- sta_info_put(sta);
- return;
- }
-
- /* If a forced rate is in effect, select it. */
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->bss && sdata->bss->force_unicast_rateidx > -1)
- sta->txrate_idx = sdata->bss->force_unicast_rateidx;
-
- rateidx = sta->txrate_idx;
-
- if (rateidx >= sband->n_bitrates)
- rateidx = sband->n_bitrates - 1;
-
- sta->last_txrate_idx = rateidx;
-
- sta_info_put(sta);
-
- sel->rate = &sband->bitrates[rateidx];
-}
-
-
-static void rate_control_simple_rate_init(void *priv, void *priv_sta,
- struct ieee80211_local *local,
- struct sta_info *sta)
-{
- struct ieee80211_supported_band *sband;
-
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
- /* TODO: This routine should consider using RSSI from previous packets
- * as we need to have IEEE 802.1X auth succeed immediately after assoc..
- * Until that method is implemented, we will use the lowest supported rate
- * as a workaround, */
- sta->txrate_idx = rate_lowest_index(local, sband, sta);
-}
-
-
-static void * rate_control_simple_alloc(struct ieee80211_local *local)
-{
- struct global_rate_control *rctrl;
-
- rctrl = kzalloc(sizeof(*rctrl), GFP_ATOMIC);
-
- return rctrl;
-}
-
-
-static void rate_control_simple_free(void *priv)
-{
- struct global_rate_control *rctrl = priv;
- kfree(rctrl);
-}
-
-
-static void rate_control_simple_clear(void *priv)
-{
-}
-
-
-static void * rate_control_simple_alloc_sta(void *priv, gfp_t gfp)
-{
- struct sta_rate_control *rctrl;
-
- rctrl = kzalloc(sizeof(*rctrl), gfp);
-
- return rctrl;
-}
-
-
-static void rate_control_simple_free_sta(void *priv, void *priv_sta)
-{
- struct sta_rate_control *rctrl = priv_sta;
- kfree(rctrl);
-}
-
-#ifdef CONFIG_MAC80211_DEBUGFS
-
-static int open_file_generic(struct inode *inode, struct file *file)
-{
- file->private_data = inode->i_private;
- return 0;
-}
-
-static ssize_t sta_tx_avg_rate_sum_read(struct file *file,
- char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- struct sta_rate_control *srctrl = file->private_data;
- char buf[20];
-
- sprintf(buf, "%d\n", srctrl->tx_avg_rate_sum);
- return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
-}
-
-static const struct file_operations sta_tx_avg_rate_sum_ops = {
- .read = sta_tx_avg_rate_sum_read,
- .open = open_file_generic,
-};
-
-static ssize_t sta_tx_avg_rate_num_read(struct file *file,
- char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- struct sta_rate_control *srctrl = file->private_data;
- char buf[20];
-
- sprintf(buf, "%d\n", srctrl->tx_avg_rate_num);
- return simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf));
-}
-
-static const struct file_operations sta_tx_avg_rate_num_ops = {
- .read = sta_tx_avg_rate_num_read,
- .open = open_file_generic,
-};
-
-static void rate_control_simple_add_sta_debugfs(void *priv, void *priv_sta,
- struct dentry *dir)
-{
- struct sta_rate_control *srctrl = priv_sta;
-
- srctrl->tx_avg_rate_num_dentry =
- debugfs_create_file("rc_simple_sta_tx_avg_rate_num", 0400,
- dir, srctrl, &sta_tx_avg_rate_num_ops);
- srctrl->tx_avg_rate_sum_dentry =
- debugfs_create_file("rc_simple_sta_tx_avg_rate_sum", 0400,
- dir, srctrl, &sta_tx_avg_rate_sum_ops);
-}
-
-static void rate_control_simple_remove_sta_debugfs(void *priv, void *priv_sta)
-{
- struct sta_rate_control *srctrl = priv_sta;
-
- debugfs_remove(srctrl->tx_avg_rate_sum_dentry);
- debugfs_remove(srctrl->tx_avg_rate_num_dentry);
-}
-#endif
-
-static struct rate_control_ops mac80211_rcsimple = {
- .name = "simple",
- .tx_status = rate_control_simple_tx_status,
- .get_rate = rate_control_simple_get_rate,
- .rate_init = rate_control_simple_rate_init,
- .clear = rate_control_simple_clear,
- .alloc = rate_control_simple_alloc,
- .free = rate_control_simple_free,
- .alloc_sta = rate_control_simple_alloc_sta,
- .free_sta = rate_control_simple_free_sta,
-#ifdef CONFIG_MAC80211_DEBUGFS
- .add_sta_debugfs = rate_control_simple_add_sta_debugfs,
- .remove_sta_debugfs = rate_control_simple_remove_sta_debugfs,
-#endif
-};
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Simple rate control algorithm");
-
-int __init rc80211_simple_init(void)
-{
- return ieee80211_rate_control_register(&mac80211_rcsimple);
-}
-
-void rc80211_simple_exit(void)
-{
- ieee80211_rate_control_unregister(&mac80211_rcsimple);
-}
-
-#ifdef CONFIG_MAC80211_RC_SIMPLE_MODULE
-module_init(rc80211_simple_init);
-module_exit(rc80211_simple_exit);
-#endif
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005-2006, Devicescape Software, Inc.
- * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/rcupdate.h>
-#include <net/mac80211.h>
-#include <net/ieee80211_radiotap.h>
-
-#include "ieee80211_i.h"
-#include "ieee80211_led.h"
-#include "wep.h"
-#include "wpa.h"
-#include "tkip.h"
-#include "wme.h"
-
-u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
- struct tid_ampdu_rx *tid_agg_rx,
- struct sk_buff *skb, u16 mpdu_seq_num,
- int bar_req);
-/*
- * monitor mode reception
- *
- * This function cleans up the SKB, i.e. it removes all the stuff
- * only useful for monitoring.
- */
-static struct sk_buff *remove_monitor_info(struct ieee80211_local *local,
- struct sk_buff *skb,
- int rtap_len)
-{
- skb_pull(skb, rtap_len);
-
- if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) {
- if (likely(skb->len > FCS_LEN))
- skb_trim(skb, skb->len - FCS_LEN);
- else {
- /* driver bug */
- WARN_ON(1);
- dev_kfree_skb(skb);
- skb = NULL;
- }
- }
-
- return skb;
-}
-
-static inline int should_drop_frame(struct ieee80211_rx_status *status,
- struct sk_buff *skb,
- int present_fcs_len,
- int radiotap_len)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-
- if (status->flag & (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC))
- return 1;
- if (unlikely(skb->len < 16 + present_fcs_len + radiotap_len))
- return 1;
- if (((hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
- cpu_to_le16(IEEE80211_FTYPE_CTL)) &&
- ((hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_STYPE)) !=
- cpu_to_le16(IEEE80211_STYPE_PSPOLL)) &&
- ((hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_STYPE)) !=
- cpu_to_le16(IEEE80211_STYPE_BACK_REQ)))
- return 1;
- return 0;
-}
-
-/*
- * This function copies a received frame to all monitor interfaces and
- * returns a cleaned-up SKB that no longer includes the FCS nor the
- * radiotap header the driver might have added.
- */
-static struct sk_buff *
-ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
- struct ieee80211_rx_status *status,
- struct ieee80211_rate *rate)
-{
- struct ieee80211_sub_if_data *sdata;
- int needed_headroom = 0;
- struct ieee80211_radiotap_header *rthdr;
- __le64 *rttsft = NULL;
- struct ieee80211_rtap_fixed_data {
- u8 flags;
- u8 rate;
- __le16 chan_freq;
- __le16 chan_flags;
- u8 antsignal;
- u8 padding_for_rxflags;
- __le16 rx_flags;
- } __attribute__ ((packed)) *rtfixed;
- struct sk_buff *skb, *skb2;
- struct net_device *prev_dev = NULL;
- int present_fcs_len = 0;
- int rtap_len = 0;
-
- /*
- * First, we may need to make a copy of the skb because
- * (1) we need to modify it for radiotap (if not present), and
- * (2) the other RX handlers will modify the skb we got.
- *
- * We don't need to, of course, if we aren't going to return
- * the SKB because it has a bad FCS/PLCP checksum.
- */
- if (status->flag & RX_FLAG_RADIOTAP)
- rtap_len = ieee80211_get_radiotap_len(origskb->data);
- else
- /* room for radiotap header, always present fields and TSFT */
- needed_headroom = sizeof(*rthdr) + sizeof(*rtfixed) + 8;
-
- if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
- present_fcs_len = FCS_LEN;
-
- if (!local->monitors) {
- if (should_drop_frame(status, origskb, present_fcs_len,
- rtap_len)) {
- dev_kfree_skb(origskb);
- return NULL;
- }
-
- return remove_monitor_info(local, origskb, rtap_len);
- }
-
- if (should_drop_frame(status, origskb, present_fcs_len, rtap_len)) {
- /* only need to expand headroom if necessary */
- skb = origskb;
- origskb = NULL;
-
- /*
- * This shouldn't trigger often because most devices have an
- * RX header they pull before we get here, and that should
- * be big enough for our radiotap information. We should
- * probably export the length to drivers so that we can have
- * them allocate enough headroom to start with.
- */
- if (skb_headroom(skb) < needed_headroom &&
- pskb_expand_head(skb, needed_headroom, 0, GFP_ATOMIC)) {
- dev_kfree_skb(skb);
- return NULL;
- }
- } else {
- /*
- * Need to make a copy and possibly remove radiotap header
- * and FCS from the original.
- */
- skb = skb_copy_expand(origskb, needed_headroom, 0, GFP_ATOMIC);
-
- origskb = remove_monitor_info(local, origskb, rtap_len);
-
- if (!skb)
- return origskb;
- }
-
- /* if necessary, prepend radiotap information */
- if (!(status->flag & RX_FLAG_RADIOTAP)) {
- rtfixed = (void *) skb_push(skb, sizeof(*rtfixed));
- rtap_len = sizeof(*rthdr) + sizeof(*rtfixed);
- if (status->flag & RX_FLAG_TSFT) {
- rttsft = (void *) skb_push(skb, sizeof(*rttsft));
- rtap_len += 8;
- }
- rthdr = (void *) skb_push(skb, sizeof(*rthdr));
- memset(rthdr, 0, sizeof(*rthdr));
- memset(rtfixed, 0, sizeof(*rtfixed));
- rthdr->it_present =
- cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
- (1 << IEEE80211_RADIOTAP_RATE) |
- (1 << IEEE80211_RADIOTAP_CHANNEL) |
- (1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL) |
- (1 << IEEE80211_RADIOTAP_RX_FLAGS));
- rtfixed->flags = 0;
- if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
- rtfixed->flags |= IEEE80211_RADIOTAP_F_FCS;
-
- if (rttsft) {
- *rttsft = cpu_to_le64(status->mactime);
- rthdr->it_present |=
- cpu_to_le32(1 << IEEE80211_RADIOTAP_TSFT);
- }
-
- /* FIXME: when radiotap gets a 'bad PLCP' flag use it here */
- rtfixed->rx_flags = 0;
- if (status->flag &
- (RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC))
- rtfixed->rx_flags |=
- cpu_to_le16(IEEE80211_RADIOTAP_F_RX_BADFCS);
-
- rtfixed->rate = rate->bitrate / 5;
-
- rtfixed->chan_freq = cpu_to_le16(status->freq);
-
- if (status->band == IEEE80211_BAND_5GHZ)
- rtfixed->chan_flags =
- cpu_to_le16(IEEE80211_CHAN_OFDM |
- IEEE80211_CHAN_5GHZ);
- else
- rtfixed->chan_flags =
- cpu_to_le16(IEEE80211_CHAN_DYN |
- IEEE80211_CHAN_2GHZ);
-
- rtfixed->antsignal = status->ssi;
- rthdr->it_len = cpu_to_le16(rtap_len);
- }
-
- skb_reset_mac_header(skb);
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- skb->pkt_type = PACKET_OTHERHOST;
- skb->protocol = htons(ETH_P_802_2);
-
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
- if (!netif_running(sdata->dev))
- continue;
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_MNTR)
- continue;
-
- if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES)
- continue;
-
- if (prev_dev) {
- skb2 = skb_clone(skb, GFP_ATOMIC);
- if (skb2) {
- skb2->dev = prev_dev;
- netif_rx(skb2);
- }
- }
-
- prev_dev = sdata->dev;
- sdata->dev->stats.rx_packets++;
- sdata->dev->stats.rx_bytes += skb->len;
- }
-
- if (prev_dev) {
- skb->dev = prev_dev;
- netif_rx(skb);
- } else
- dev_kfree_skb(skb);
-
- return origskb;
-}
-
-
-static void ieee80211_parse_qos(struct ieee80211_txrx_data *rx)
-{
- u8 *data = rx->skb->data;
- int tid;
-
- /* does the frame have a qos control field? */
- if (WLAN_FC_IS_QOS_DATA(rx->fc)) {
- u8 *qc = data + ieee80211_get_hdrlen(rx->fc) - QOS_CONTROL_LEN;
- /* frame has qos control */
- tid = qc[0] & QOS_CONTROL_TID_MASK;
- if (qc[0] & IEEE80211_QOS_CONTROL_A_MSDU_PRESENT)
- rx->flags |= IEEE80211_TXRXD_RX_AMSDU;
- else
- rx->flags &= ~IEEE80211_TXRXD_RX_AMSDU;
- } else {
- if (unlikely((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)) {
- /* Separate TID for management frames */
- tid = NUM_RX_DATA_QUEUES - 1;
- } else {
- /* no qos control present */
- tid = 0; /* 802.1d - Best Effort */
- }
- }
-
- I802_DEBUG_INC(rx->local->wme_rx_queue[tid]);
- /* only a debug counter, sta might not be assigned properly yet */
- if (rx->sta)
- I802_DEBUG_INC(rx->sta->wme_rx_queue[tid]);
-
- rx->u.rx.queue = tid;
- /* Set skb->priority to 1d tag if highest order bit of TID is not set.
- * For now, set skb->priority to 0 for other cases. */
- rx->skb->priority = (tid > 7) ? 0 : tid;
-}
-
-static void ieee80211_verify_ip_alignment(struct ieee80211_txrx_data *rx)
-{
-#ifdef CONFIG_MAC80211_DEBUG_PACKET_ALIGNMENT
- int hdrlen;
-
- if (!WLAN_FC_DATA_PRESENT(rx->fc))
- return;
-
- /*
- * Drivers are required to align the payload data in a way that
- * guarantees that the contained IP header is aligned to a four-
- * byte boundary. In the case of regular frames, this simply means
- * aligning the payload to a four-byte boundary (because either
- * the IP header is directly contained, or IV/RFC1042 headers that
- * have a length divisible by four are in front of it.
- *
- * With A-MSDU frames, however, the payload data address must
- * yield two modulo four because there are 14-byte 802.3 headers
- * within the A-MSDU frames that push the IP header further back
- * to a multiple of four again. Thankfully, the specs were sane
- * enough this time around to require padding each A-MSDU subframe
- * to a length that is a multiple of four.
- *
- * Padding like atheros hardware adds which is inbetween the 802.11
- * header and the payload is not supported, the driver is required
- * to move the 802.11 header further back in that case.
- */
- hdrlen = ieee80211_get_hdrlen(rx->fc);
- if (rx->flags & IEEE80211_TXRXD_RX_AMSDU)
- hdrlen += ETH_HLEN;
- WARN_ON_ONCE(((unsigned long)(rx->skb->data + hdrlen)) & 3);
-#endif
-}
-
-
-static u32 ieee80211_rx_load_stats(struct ieee80211_local *local,
- struct sk_buff *skb,
- struct ieee80211_rx_status *status,
- struct ieee80211_rate *rate)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u32 load = 0, hdrtime;
-
- /* Estimate total channel use caused by this frame */
-
- /* 1 bit at 1 Mbit/s takes 1 usec; in channel_use values,
- * 1 usec = 1/8 * (1080 / 10) = 13.5 */
-
- if (status->band == IEEE80211_BAND_5GHZ ||
- (status->band == IEEE80211_BAND_5GHZ &&
- rate->flags & IEEE80211_RATE_ERP_G))
- hdrtime = CHAN_UTIL_HDR_SHORT;
- else
- hdrtime = CHAN_UTIL_HDR_LONG;
-
- load = hdrtime;
- if (!is_multicast_ether_addr(hdr->addr1))
- load += hdrtime;
-
- /* TODO: optimise again */
- load += skb->len * CHAN_UTIL_RATE_LCM / rate->bitrate;
-
- /* Divide channel_use by 8 to avoid wrapping around the counter */
- load >>= CHAN_UTIL_SHIFT;
-
- return load;
-}
-
-/* rx handlers */
-
-static ieee80211_rx_result
-ieee80211_rx_h_if_stats(struct ieee80211_txrx_data *rx)
-{
- if (rx->sta)
- rx->sta->channel_use_raw += rx->u.rx.load;
- rx->sdata->channel_use_raw += rx->u.rx.load;
- return RX_CONTINUE;
-}
-
-static ieee80211_rx_result
-ieee80211_rx_h_passive_scan(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_local *local = rx->local;
- struct sk_buff *skb = rx->skb;
-
- if (unlikely(local->sta_hw_scanning))
- return ieee80211_sta_rx_scan(rx->dev, skb, rx->u.rx.status);
-
- if (unlikely(local->sta_sw_scanning)) {
- /* drop all the other packets during a software scan anyway */
- if (ieee80211_sta_rx_scan(rx->dev, skb, rx->u.rx.status)
- != RX_QUEUED)
- dev_kfree_skb(skb);
- return RX_QUEUED;
- }
-
- if (unlikely(rx->flags & IEEE80211_TXRXD_RXIN_SCAN)) {
- /* scanning finished during invoking of handlers */
- I802_DEBUG_INC(local->rx_handlers_drop_passive_scan);
- return RX_DROP_UNUSABLE;
- }
-
- return RX_CONTINUE;
-}
-
-static ieee80211_rx_result
-ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_hdr *hdr;
- hdr = (struct ieee80211_hdr *) rx->skb->data;
-
- /* Drop duplicate 802.11 retransmissions (IEEE 802.11 Chap. 9.2.9) */
- if (rx->sta && !is_multicast_ether_addr(hdr->addr1)) {
- if (unlikely(rx->fc & IEEE80211_FCTL_RETRY &&
- rx->sta->last_seq_ctrl[rx->u.rx.queue] ==
- hdr->seq_ctrl)) {
- if (rx->flags & IEEE80211_TXRXD_RXRA_MATCH) {
- rx->local->dot11FrameDuplicateCount++;
- rx->sta->num_duplicates++;
- }
- return RX_DROP_MONITOR;
- } else
- rx->sta->last_seq_ctrl[rx->u.rx.queue] = hdr->seq_ctrl;
- }
-
- if (unlikely(rx->skb->len < 16)) {
- I802_DEBUG_INC(rx->local->rx_handlers_drop_short);
- return RX_DROP_MONITOR;
- }
-
- /* Drop disallowed frame classes based on STA auth/assoc state;
- * IEEE 802.11, Chap 5.5.
- *
- * 80211.o does filtering only based on association state, i.e., it
- * drops Class 3 frames from not associated stations. hostapd sends
- * deauth/disassoc frames when needed. In addition, hostapd is
- * responsible for filtering on both auth and assoc states.
- */
- if (unlikely(((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA ||
- ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL &&
- (rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)) &&
- rx->sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
- (!rx->sta || !(rx->sta->flags & WLAN_STA_ASSOC)))) {
- if ((!(rx->fc & IEEE80211_FCTL_FROMDS) &&
- !(rx->fc & IEEE80211_FCTL_TODS) &&
- (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)
- || !(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) {
- /* Drop IBSS frames and frames for other hosts
- * silently. */
- return RX_DROP_MONITOR;
- }
-
- return RX_DROP_MONITOR;
- }
-
- return RX_CONTINUE;
-}
-
-
-static ieee80211_rx_result
-ieee80211_rx_h_decrypt(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
- int keyidx;
- int hdrlen;
- ieee80211_rx_result result = RX_DROP_UNUSABLE;
- struct ieee80211_key *stakey = NULL;
-
- /*
- * Key selection 101
- *
- * There are three types of keys:
- * - GTK (group keys)
- * - PTK (pairwise keys)
- * - STK (station-to-station pairwise keys)
- *
- * When selecting a key, we have to distinguish between multicast
- * (including broadcast) and unicast frames, the latter can only
- * use PTKs and STKs while the former always use GTKs. Unless, of
- * course, actual WEP keys ("pre-RSNA") are used, then unicast
- * frames can also use key indizes like GTKs. Hence, if we don't
- * have a PTK/STK we check the key index for a WEP key.
- *
- * Note that in a regular BSS, multicast frames are sent by the
- * AP only, associated stations unicast the frame to the AP first
- * which then multicasts it on their behalf.
- *
- * There is also a slight problem in IBSS mode: GTKs are negotiated
- * with each station, that is something we don't currently handle.
- * The spec seems to expect that one negotiates the same key with
- * every station but there's no such requirement; VLANs could be
- * possible.
- */
-
- if (!(rx->fc & IEEE80211_FCTL_PROTECTED))
- return RX_CONTINUE;
-
- /*
- * No point in finding a key and decrypting if the frame is neither
- * addressed to us nor a multicast frame.
- */
- if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
- return RX_CONTINUE;
-
- if (rx->sta)
- stakey = rcu_dereference(rx->sta->key);
-
- if (!is_multicast_ether_addr(hdr->addr1) && stakey) {
- rx->key = stakey;
- } else {
- /*
- * The device doesn't give us the IV so we won't be
- * able to look up the key. That's ok though, we
- * don't need to decrypt the frame, we just won't
- * be able to keep statistics accurate.
- * Except for key threshold notifications, should
- * we somehow allow the driver to tell us which key
- * the hardware used if this flag is set?
- */
- if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
- (rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED))
- return RX_CONTINUE;
-
- hdrlen = ieee80211_get_hdrlen(rx->fc);
-
- if (rx->skb->len < 8 + hdrlen)
- return RX_DROP_UNUSABLE; /* TODO: count this? */
-
- /*
- * no need to call ieee80211_wep_get_keyidx,
- * it verifies a bunch of things we've done already
- */
- keyidx = rx->skb->data[hdrlen + 3] >> 6;
-
- rx->key = rcu_dereference(rx->sdata->keys[keyidx]);
-
- /*
- * RSNA-protected unicast frames should always be sent with
- * pairwise or station-to-station keys, but for WEP we allow
- * using a key index as well.
- */
- if (rx->key && rx->key->conf.alg != ALG_WEP &&
- !is_multicast_ether_addr(hdr->addr1))
- rx->key = NULL;
- }
-
- if (rx->key) {
- rx->key->tx_rx_count++;
- /* TODO: add threshold stuff again */
- } else {
-#ifdef CONFIG_MAC80211_DEBUG
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: RX protected frame,"
- " but have no key\n", rx->dev->name);
-#endif /* CONFIG_MAC80211_DEBUG */
- return RX_DROP_MONITOR;
- }
-
- /* Check for weak IVs if possible */
- if (rx->sta && rx->key->conf.alg == ALG_WEP &&
- ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) &&
- (!(rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED) ||
- !(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) &&
- ieee80211_wep_is_weak_iv(rx->skb, rx->key))
- rx->sta->wep_weak_iv_count++;
-
- switch (rx->key->conf.alg) {
- case ALG_WEP:
- result = ieee80211_crypto_wep_decrypt(rx);
- break;
- case ALG_TKIP:
- result = ieee80211_crypto_tkip_decrypt(rx);
- break;
- case ALG_CCMP:
- result = ieee80211_crypto_ccmp_decrypt(rx);
- break;
- }
-
- /* either the frame has been decrypted or will be dropped */
- rx->u.rx.status->flag |= RX_FLAG_DECRYPTED;
-
- return result;
-}
-
-static void ap_sta_ps_start(struct net_device *dev, struct sta_info *sta)
-{
- struct ieee80211_sub_if_data *sdata;
- DECLARE_MAC_BUF(mac);
-
- sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
-
- if (sdata->bss)
- atomic_inc(&sdata->bss->num_sta_ps);
- sta->flags |= WLAN_STA_PS;
- sta->pspoll = 0;
-#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "%s: STA %s aid %d enters power save mode\n",
- dev->name, print_mac(mac, sta->addr), sta->aid);
-#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
-}
-
-static int ap_sta_ps_end(struct net_device *dev, struct sta_info *sta)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sk_buff *skb;
- int sent = 0;
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_tx_packet_data *pkt_data;
- DECLARE_MAC_BUF(mac);
-
- sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
- if (sdata->bss)
- atomic_dec(&sdata->bss->num_sta_ps);
- sta->flags &= ~(WLAN_STA_PS | WLAN_STA_TIM);
- sta->pspoll = 0;
- if (!skb_queue_empty(&sta->ps_tx_buf)) {
- if (local->ops->set_tim)
- local->ops->set_tim(local_to_hw(local), sta->aid, 0);
- if (sdata->bss)
- bss_tim_clear(local, sdata->bss, sta->aid);
- }
-#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "%s: STA %s aid %d exits power save mode\n",
- dev->name, print_mac(mac, sta->addr), sta->aid);
-#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
- /* Send all buffered frames to the station */
- while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
- pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
- sent++;
- pkt_data->flags |= IEEE80211_TXPD_REQUEUE;
- dev_queue_xmit(skb);
- }
- while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
- pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
- local->total_ps_buffered--;
- sent++;
-#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "%s: STA %s aid %d send PS frame "
- "since STA not sleeping anymore\n", dev->name,
- print_mac(mac, sta->addr), sta->aid);
-#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
- pkt_data->flags |= IEEE80211_TXPD_REQUEUE;
- dev_queue_xmit(skb);
- }
-
- return sent;
-}
-
-static ieee80211_rx_result
-ieee80211_rx_h_sta_process(struct ieee80211_txrx_data *rx)
-{
- struct sta_info *sta = rx->sta;
- struct net_device *dev = rx->dev;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
-
- if (!sta)
- return RX_CONTINUE;
-
- /* Update last_rx only for IBSS packets which are for the current
- * BSSID to avoid keeping the current IBSS network alive in cases where
- * other STAs are using different BSSID. */
- if (rx->sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
- u8 *bssid = ieee80211_get_bssid(hdr, rx->skb->len,
- IEEE80211_IF_TYPE_IBSS);
- if (compare_ether_addr(bssid, rx->sdata->u.sta.bssid) == 0)
- sta->last_rx = jiffies;
- } else
- if (!is_multicast_ether_addr(hdr->addr1) ||
- rx->sdata->vif.type == IEEE80211_IF_TYPE_STA) {
- /* Update last_rx only for unicast frames in order to prevent
- * the Probe Request frames (the only broadcast frames from a
- * STA in infrastructure mode) from keeping a connection alive.
- */
- sta->last_rx = jiffies;
- }
-
- if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
- return RX_CONTINUE;
-
- sta->rx_fragments++;
- sta->rx_bytes += rx->skb->len;
- sta->last_rssi = rx->u.rx.status->ssi;
- sta->last_signal = rx->u.rx.status->signal;
- sta->last_noise = rx->u.rx.status->noise;
-
- if (!(rx->fc & IEEE80211_FCTL_MOREFRAGS)) {
- /* Change STA power saving mode only in the end of a frame
- * exchange sequence */
- if ((sta->flags & WLAN_STA_PS) && !(rx->fc & IEEE80211_FCTL_PM))
- rx->u.rx.sent_ps_buffered += ap_sta_ps_end(dev, sta);
- else if (!(sta->flags & WLAN_STA_PS) &&
- (rx->fc & IEEE80211_FCTL_PM))
- ap_sta_ps_start(dev, sta);
- }
-
- /* Drop data::nullfunc frames silently, since they are used only to
- * control station power saving mode. */
- if ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
- (rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_NULLFUNC) {
- I802_DEBUG_INC(rx->local->rx_handlers_drop_nullfunc);
- /* Update counter and free packet here to avoid counting this
- * as a dropped packed. */
- sta->rx_packets++;
- dev_kfree_skb(rx->skb);
- return RX_QUEUED;
- }
-
- return RX_CONTINUE;
-} /* ieee80211_rx_h_sta_process */
-
-static inline struct ieee80211_fragment_entry *
-ieee80211_reassemble_add(struct ieee80211_sub_if_data *sdata,
- unsigned int frag, unsigned int seq, int rx_queue,
- struct sk_buff **skb)
-{
- struct ieee80211_fragment_entry *entry;
- int idx;
-
- idx = sdata->fragment_next;
- entry = &sdata->fragments[sdata->fragment_next++];
- if (sdata->fragment_next >= IEEE80211_FRAGMENT_MAX)
- sdata->fragment_next = 0;
-
- if (!skb_queue_empty(&entry->skb_list)) {
-#ifdef CONFIG_MAC80211_DEBUG
- struct ieee80211_hdr *hdr =
- (struct ieee80211_hdr *) entry->skb_list.next->data;
- DECLARE_MAC_BUF(mac);
- DECLARE_MAC_BUF(mac2);
- printk(KERN_DEBUG "%s: RX reassembly removed oldest "
- "fragment entry (idx=%d age=%lu seq=%d last_frag=%d "
- "addr1=%s addr2=%s\n",
- sdata->dev->name, idx,
- jiffies - entry->first_frag_time, entry->seq,
- entry->last_frag, print_mac(mac, hdr->addr1),
- print_mac(mac2, hdr->addr2));
-#endif /* CONFIG_MAC80211_DEBUG */
- __skb_queue_purge(&entry->skb_list);
- }
-
- __skb_queue_tail(&entry->skb_list, *skb); /* no need for locking */
- *skb = NULL;
- entry->first_frag_time = jiffies;
- entry->seq = seq;
- entry->rx_queue = rx_queue;
- entry->last_frag = frag;
- entry->ccmp = 0;
- entry->extra_len = 0;
-
- return entry;
-}
-
-static inline struct ieee80211_fragment_entry *
-ieee80211_reassemble_find(struct ieee80211_sub_if_data *sdata,
- u16 fc, unsigned int frag, unsigned int seq,
- int rx_queue, struct ieee80211_hdr *hdr)
-{
- struct ieee80211_fragment_entry *entry;
- int i, idx;
-
- idx = sdata->fragment_next;
- for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++) {
- struct ieee80211_hdr *f_hdr;
- u16 f_fc;
-
- idx--;
- if (idx < 0)
- idx = IEEE80211_FRAGMENT_MAX - 1;
-
- entry = &sdata->fragments[idx];
- if (skb_queue_empty(&entry->skb_list) || entry->seq != seq ||
- entry->rx_queue != rx_queue ||
- entry->last_frag + 1 != frag)
- continue;
-
- f_hdr = (struct ieee80211_hdr *) entry->skb_list.next->data;
- f_fc = le16_to_cpu(f_hdr->frame_control);
-
- if ((fc & IEEE80211_FCTL_FTYPE) != (f_fc & IEEE80211_FCTL_FTYPE) ||
- compare_ether_addr(hdr->addr1, f_hdr->addr1) != 0 ||
- compare_ether_addr(hdr->addr2, f_hdr->addr2) != 0)
- continue;
-
- if (entry->first_frag_time + 2 * HZ < jiffies) {
- __skb_queue_purge(&entry->skb_list);
- continue;
- }
- return entry;
- }
-
- return NULL;
-}
-
-static ieee80211_rx_result
-ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_hdr *hdr;
- u16 sc;
- unsigned int frag, seq;
- struct ieee80211_fragment_entry *entry;
- struct sk_buff *skb;
- DECLARE_MAC_BUF(mac);
-
- hdr = (struct ieee80211_hdr *) rx->skb->data;
- sc = le16_to_cpu(hdr->seq_ctrl);
- frag = sc & IEEE80211_SCTL_FRAG;
-
- if (likely((!(rx->fc & IEEE80211_FCTL_MOREFRAGS) && frag == 0) ||
- (rx->skb)->len < 24 ||
- is_multicast_ether_addr(hdr->addr1))) {
- /* not fragmented */
- goto out;
- }
- I802_DEBUG_INC(rx->local->rx_handlers_fragments);
-
- seq = (sc & IEEE80211_SCTL_SEQ) >> 4;
-
- if (frag == 0) {
- /* This is the first fragment of a new frame. */
- entry = ieee80211_reassemble_add(rx->sdata, frag, seq,
- rx->u.rx.queue, &(rx->skb));
- if (rx->key && rx->key->conf.alg == ALG_CCMP &&
- (rx->fc & IEEE80211_FCTL_PROTECTED)) {
- /* Store CCMP PN so that we can verify that the next
- * fragment has a sequential PN value. */
- entry->ccmp = 1;
- memcpy(entry->last_pn,
- rx->key->u.ccmp.rx_pn[rx->u.rx.queue],
- CCMP_PN_LEN);
- }
- return RX_QUEUED;
- }
-
- /* This is a fragment for a frame that should already be pending in
- * fragment cache. Add this fragment to the end of the pending entry.
- */
- entry = ieee80211_reassemble_find(rx->sdata, rx->fc, frag, seq,
- rx->u.rx.queue, hdr);
- if (!entry) {
- I802_DEBUG_INC(rx->local->rx_handlers_drop_defrag);
- return RX_DROP_MONITOR;
- }
-
- /* Verify that MPDUs within one MSDU have sequential PN values.
- * (IEEE 802.11i, 8.3.3.4.5) */
- if (entry->ccmp) {
- int i;
- u8 pn[CCMP_PN_LEN], *rpn;
- if (!rx->key || rx->key->conf.alg != ALG_CCMP)
- return RX_DROP_UNUSABLE;
- memcpy(pn, entry->last_pn, CCMP_PN_LEN);
- for (i = CCMP_PN_LEN - 1; i >= 0; i--) {
- pn[i]++;
- if (pn[i])
- break;
- }
- rpn = rx->key->u.ccmp.rx_pn[rx->u.rx.queue];
- if (memcmp(pn, rpn, CCMP_PN_LEN) != 0) {
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: defrag: CCMP PN not "
- "sequential A2=%s"
- " PN=%02x%02x%02x%02x%02x%02x "
- "(expected %02x%02x%02x%02x%02x%02x)\n",
- rx->dev->name, print_mac(mac, hdr->addr2),
- rpn[0], rpn[1], rpn[2], rpn[3], rpn[4],
- rpn[5], pn[0], pn[1], pn[2], pn[3],
- pn[4], pn[5]);
- return RX_DROP_UNUSABLE;
- }
- memcpy(entry->last_pn, pn, CCMP_PN_LEN);
- }
-
- skb_pull(rx->skb, ieee80211_get_hdrlen(rx->fc));
- __skb_queue_tail(&entry->skb_list, rx->skb);
- entry->last_frag = frag;
- entry->extra_len += rx->skb->len;
- if (rx->fc & IEEE80211_FCTL_MOREFRAGS) {
- rx->skb = NULL;
- return RX_QUEUED;
- }
-
- rx->skb = __skb_dequeue(&entry->skb_list);
- if (skb_tailroom(rx->skb) < entry->extra_len) {
- I802_DEBUG_INC(rx->local->rx_expand_skb_head2);
- if (unlikely(pskb_expand_head(rx->skb, 0, entry->extra_len,
- GFP_ATOMIC))) {
- I802_DEBUG_INC(rx->local->rx_handlers_drop_defrag);
- __skb_queue_purge(&entry->skb_list);
- return RX_DROP_UNUSABLE;
- }
- }
- while ((skb = __skb_dequeue(&entry->skb_list))) {
- memcpy(skb_put(rx->skb, skb->len), skb->data, skb->len);
- dev_kfree_skb(skb);
- }
-
- /* Complete frame has been reassembled - process it now */
- rx->flags |= IEEE80211_TXRXD_FRAGMENTED;
-
- out:
- if (rx->sta)
- rx->sta->rx_packets++;
- if (is_multicast_ether_addr(hdr->addr1))
- rx->local->dot11MulticastReceivedFrameCount++;
- else
- ieee80211_led_rx(rx->local);
- return RX_CONTINUE;
-}
-
-static ieee80211_rx_result
-ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
- struct sk_buff *skb;
- int no_pending_pkts;
- DECLARE_MAC_BUF(mac);
-
- if (likely(!rx->sta ||
- (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_CTL ||
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PSPOLL ||
- !(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)))
- return RX_CONTINUE;
-
- if ((sdata->vif.type != IEEE80211_IF_TYPE_AP) &&
- (sdata->vif.type != IEEE80211_IF_TYPE_VLAN))
- return RX_DROP_UNUSABLE;
-
- skb = skb_dequeue(&rx->sta->tx_filtered);
- if (!skb) {
- skb = skb_dequeue(&rx->sta->ps_tx_buf);
- if (skb)
- rx->local->total_ps_buffered--;
- }
- no_pending_pkts = skb_queue_empty(&rx->sta->tx_filtered) &&
- skb_queue_empty(&rx->sta->ps_tx_buf);
-
- if (skb) {
- struct ieee80211_hdr *hdr =
- (struct ieee80211_hdr *) skb->data;
-
- /* tell TX path to send one frame even though the STA may
- * still remain is PS mode after this frame exchange */
- rx->sta->pspoll = 1;
-
-#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "STA %s aid %d: PS Poll (entries after %d)\n",
- print_mac(mac, rx->sta->addr), rx->sta->aid,
- skb_queue_len(&rx->sta->ps_tx_buf));
-#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
-
- /* Use MoreData flag to indicate whether there are more
- * buffered frames for this STA */
- if (no_pending_pkts) {
- hdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREDATA);
- rx->sta->flags &= ~WLAN_STA_TIM;
- } else
- hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREDATA);
-
- dev_queue_xmit(skb);
-
- if (no_pending_pkts) {
- if (rx->local->ops->set_tim)
- rx->local->ops->set_tim(local_to_hw(rx->local),
- rx->sta->aid, 0);
- if (rx->sdata->bss)
- bss_tim_clear(rx->local, rx->sdata->bss, rx->sta->aid);
- }
-#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- } else if (!rx->u.rx.sent_ps_buffered) {
- printk(KERN_DEBUG "%s: STA %s sent PS Poll even "
- "though there is no buffered frames for it\n",
- rx->dev->name, print_mac(mac, rx->sta->addr));
-#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
-
- }
-
- /* Free PS Poll skb here instead of returning RX_DROP that would
- * count as an dropped frame. */
- dev_kfree_skb(rx->skb);
-
- return RX_QUEUED;
-}
-
-static ieee80211_rx_result
-ieee80211_rx_h_remove_qos_control(struct ieee80211_txrx_data *rx)
-{
- u16 fc = rx->fc;
- u8 *data = rx->skb->data;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) data;
-
- if (!WLAN_FC_IS_QOS_DATA(fc))
- return RX_CONTINUE;
-
- /* remove the qos control field, update frame type and meta-data */
- memmove(data + 2, data, ieee80211_get_hdrlen(fc) - 2);
- hdr = (struct ieee80211_hdr *) skb_pull(rx->skb, 2);
- /* change frame type to non QOS */
- rx->fc = fc &= ~IEEE80211_STYPE_QOS_DATA;
- hdr->frame_control = cpu_to_le16(fc);
-
- return RX_CONTINUE;
-}
-
-static int
-ieee80211_802_1x_port_control(struct ieee80211_txrx_data *rx)
-{
- if (unlikely(!rx->sta || !(rx->sta->flags & WLAN_STA_AUTHORIZED))) {
-#ifdef CONFIG_MAC80211_DEBUG
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: dropped frame "
- "(unauthorized port)\n", rx->dev->name);
-#endif /* CONFIG_MAC80211_DEBUG */
- return -EACCES;
- }
-
- return 0;
-}
-
-static int
-ieee80211_drop_unencrypted(struct ieee80211_txrx_data *rx)
-{
- /*
- * Pass through unencrypted frames if the hardware has
- * decrypted them already.
- */
- if (rx->u.rx.status->flag & RX_FLAG_DECRYPTED)
- return 0;
-
- /* Drop unencrypted frames if key is set. */
- if (unlikely(!(rx->fc & IEEE80211_FCTL_PROTECTED) &&
- (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_NULLFUNC &&
- (rx->key || rx->sdata->drop_unencrypted))) {
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: RX non-WEP frame, but expected "
- "encryption\n", rx->dev->name);
- return -EACCES;
- }
- return 0;
-}
-
-static int
-ieee80211_data_to_8023(struct ieee80211_txrx_data *rx)
-{
- struct net_device *dev = rx->dev;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
- u16 fc, hdrlen, ethertype;
- u8 *payload;
- u8 dst[ETH_ALEN];
- u8 src[ETH_ALEN];
- struct sk_buff *skb = rx->skb;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- DECLARE_MAC_BUF(mac);
- DECLARE_MAC_BUF(mac2);
- DECLARE_MAC_BUF(mac3);
- DECLARE_MAC_BUF(mac4);
-
- fc = rx->fc;
-
- if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
- return -1;
-
- hdrlen = ieee80211_get_hdrlen(fc);
-
- /* convert IEEE 802.11 header + possible LLC headers into Ethernet
- * header
- * IEEE 802.11 address fields:
- * ToDS FromDS Addr1 Addr2 Addr3 Addr4
- * 0 0 DA SA BSSID n/a
- * 0 1 DA BSSID SA n/a
- * 1 0 BSSID SA DA n/a
- * 1 1 RA TA DA SA
- */
-
- switch (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
- case IEEE80211_FCTL_TODS:
- /* BSSID SA DA */
- memcpy(dst, hdr->addr3, ETH_ALEN);
- memcpy(src, hdr->addr2, ETH_ALEN);
-
- if (unlikely(sdata->vif.type != IEEE80211_IF_TYPE_AP &&
- sdata->vif.type != IEEE80211_IF_TYPE_VLAN)) {
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: dropped ToDS frame "
- "(BSSID=%s SA=%s DA=%s)\n",
- dev->name,
- print_mac(mac, hdr->addr1),
- print_mac(mac2, hdr->addr2),
- print_mac(mac3, hdr->addr3));
- return -1;
- }
- break;
- case (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS):
- /* RA TA DA SA */
- memcpy(dst, hdr->addr3, ETH_ALEN);
- memcpy(src, hdr->addr4, ETH_ALEN);
-
- if (unlikely(sdata->vif.type != IEEE80211_IF_TYPE_WDS)) {
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: dropped FromDS&ToDS "
- "frame (RA=%s TA=%s DA=%s SA=%s)\n",
- rx->dev->name,
- print_mac(mac, hdr->addr1),
- print_mac(mac2, hdr->addr2),
- print_mac(mac3, hdr->addr3),
- print_mac(mac4, hdr->addr4));
- return -1;
- }
- break;
- case IEEE80211_FCTL_FROMDS:
- /* DA BSSID SA */
- memcpy(dst, hdr->addr1, ETH_ALEN);
- memcpy(src, hdr->addr3, ETH_ALEN);
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_STA ||
- (is_multicast_ether_addr(dst) &&
- !compare_ether_addr(src, dev->dev_addr)))
- return -1;
- break;
- case 0:
- /* DA SA BSSID */
- memcpy(dst, hdr->addr1, ETH_ALEN);
- memcpy(src, hdr->addr2, ETH_ALEN);
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: dropped IBSS frame "
- "(DA=%s SA=%s BSSID=%s)\n",
- dev->name,
- print_mac(mac, hdr->addr1),
- print_mac(mac2, hdr->addr2),
- print_mac(mac3, hdr->addr3));
- }
- return -1;
- }
- break;
- }
-
- if (unlikely(skb->len - hdrlen < 8)) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: RX too short data frame "
- "payload\n", dev->name);
- }
- return -1;
- }
-
- payload = skb->data + hdrlen;
- ethertype = (payload[6] << 8) | payload[7];
-
- if (likely((compare_ether_addr(payload, rfc1042_header) == 0 &&
- ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
- compare_ether_addr(payload, bridge_tunnel_header) == 0)) {
- /* remove RFC1042 or Bridge-Tunnel encapsulation and
- * replace EtherType */
- skb_pull(skb, hdrlen + 6);
- memcpy(skb_push(skb, ETH_ALEN), src, ETH_ALEN);
- memcpy(skb_push(skb, ETH_ALEN), dst, ETH_ALEN);
- } else {
- struct ethhdr *ehdr;
- __be16 len;
-
- skb_pull(skb, hdrlen);
- len = htons(skb->len);
- ehdr = (struct ethhdr *) skb_push(skb, sizeof(struct ethhdr));
- memcpy(ehdr->h_dest, dst, ETH_ALEN);
- memcpy(ehdr->h_source, src, ETH_ALEN);
- ehdr->h_proto = len;
- }
- return 0;
-}
-
-/*
- * requires that rx->skb is a frame with ethernet header
- */
-static bool ieee80211_frame_allowed(struct ieee80211_txrx_data *rx)
-{
- static const u8 pae_group_addr[ETH_ALEN]
- = { 0x01, 0x80, 0xC2, 0x00, 0x00, 0x03 };
- struct ethhdr *ehdr = (struct ethhdr *) rx->skb->data;
-
- /*
- * Allow EAPOL frames to us/the PAE group address regardless
- * of whether the frame was encrypted or not.
- */
- if (ehdr->h_proto == htons(ETH_P_PAE) &&
- (compare_ether_addr(ehdr->h_dest, rx->dev->dev_addr) == 0 ||
- compare_ether_addr(ehdr->h_dest, pae_group_addr) == 0))
- return true;
-
- if (ieee80211_802_1x_port_control(rx) ||
- ieee80211_drop_unencrypted(rx))
- return false;
-
- return true;
-}
-
-/*
- * requires that rx->skb is a frame with ethernet header
- */
-static void
-ieee80211_deliver_skb(struct ieee80211_txrx_data *rx)
-{
- struct net_device *dev = rx->dev;
- struct ieee80211_local *local = rx->local;
- struct sk_buff *skb, *xmit_skb;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ethhdr *ehdr = (struct ethhdr *) rx->skb->data;
- struct sta_info *dsta;
-
- skb = rx->skb;
- xmit_skb = NULL;
-
- if (local->bridge_packets && (sdata->vif.type == IEEE80211_IF_TYPE_AP ||
- sdata->vif.type == IEEE80211_IF_TYPE_VLAN) &&
- (rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) {
- if (is_multicast_ether_addr(ehdr->h_dest)) {
- /*
- * send multicast frames both to higher layers in
- * local net stack and back to the wireless medium
- */
- xmit_skb = skb_copy(skb, GFP_ATOMIC);
- if (!xmit_skb && net_ratelimit())
- printk(KERN_DEBUG "%s: failed to clone "
- "multicast frame\n", dev->name);
- } else {
- dsta = sta_info_get(local, skb->data);
- if (dsta && dsta->dev == dev) {
- /*
- * The destination station is associated to
- * this AP (in this VLAN), so send the frame
- * directly to it and do not pass it to local
- * net stack.
- */
- xmit_skb = skb;
- skb = NULL;
- }
- if (dsta)
- sta_info_put(dsta);
- }
- }
-
- if (skb) {
- /* deliver to local stack */
- skb->protocol = eth_type_trans(skb, dev);
- memset(skb->cb, 0, sizeof(skb->cb));
- netif_rx(skb);
- }
-
- if (xmit_skb) {
- /* send to wireless media */
- xmit_skb->protocol = __constant_htons(ETH_P_802_3);
- skb_reset_network_header(xmit_skb);
- skb_reset_mac_header(xmit_skb);
- dev_queue_xmit(xmit_skb);
- }
-}
-
-static ieee80211_rx_result
-ieee80211_rx_h_amsdu(struct ieee80211_txrx_data *rx)
-{
- struct net_device *dev = rx->dev;
- struct ieee80211_local *local = rx->local;
- u16 fc, ethertype;
- u8 *payload;
- struct sk_buff *skb = rx->skb, *frame = NULL;
- const struct ethhdr *eth;
- int remaining, err;
- u8 dst[ETH_ALEN];
- u8 src[ETH_ALEN];
- DECLARE_MAC_BUF(mac);
-
- fc = rx->fc;
- if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA))
- return RX_CONTINUE;
-
- if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
- return RX_DROP_MONITOR;
-
- if (!(rx->flags & IEEE80211_TXRXD_RX_AMSDU))
- return RX_CONTINUE;
-
- err = ieee80211_data_to_8023(rx);
- if (unlikely(err))
- return RX_DROP_UNUSABLE;
-
- skb->dev = dev;
-
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += skb->len;
-
- /* skip the wrapping header */
- eth = (struct ethhdr *) skb_pull(skb, sizeof(struct ethhdr));
- if (!eth)
- return RX_DROP_UNUSABLE;
-
- while (skb != frame) {
- u8 padding;
- __be16 len = eth->h_proto;
- unsigned int subframe_len = sizeof(struct ethhdr) + ntohs(len);
-
- remaining = skb->len;
- memcpy(dst, eth->h_dest, ETH_ALEN);
- memcpy(src, eth->h_source, ETH_ALEN);
-
- padding = ((4 - subframe_len) & 0x3);
- /* the last MSDU has no padding */
- if (subframe_len > remaining) {
- printk(KERN_DEBUG "%s: wrong buffer size", dev->name);
- return RX_DROP_UNUSABLE;
- }
-
- skb_pull(skb, sizeof(struct ethhdr));
- /* if last subframe reuse skb */
- if (remaining <= subframe_len + padding)
- frame = skb;
- else {
- frame = dev_alloc_skb(local->hw.extra_tx_headroom +
- subframe_len);
-
- if (frame == NULL)
- return RX_DROP_UNUSABLE;
-
- skb_reserve(frame, local->hw.extra_tx_headroom +
- sizeof(struct ethhdr));
- memcpy(skb_put(frame, ntohs(len)), skb->data,
- ntohs(len));
-
- eth = (struct ethhdr *) skb_pull(skb, ntohs(len) +
- padding);
- if (!eth) {
- printk(KERN_DEBUG "%s: wrong buffer size ",
- dev->name);
- dev_kfree_skb(frame);
- return RX_DROP_UNUSABLE;
- }
- }
-
- skb_reset_network_header(frame);
- frame->dev = dev;
- frame->priority = skb->priority;
- rx->skb = frame;
-
- payload = frame->data;
- ethertype = (payload[6] << 8) | payload[7];
-
- if (likely((compare_ether_addr(payload, rfc1042_header) == 0 &&
- ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
- compare_ether_addr(payload,
- bridge_tunnel_header) == 0)) {
- /* remove RFC1042 or Bridge-Tunnel
- * encapsulation and replace EtherType */
- skb_pull(frame, 6);
- memcpy(skb_push(frame, ETH_ALEN), src, ETH_ALEN);
- memcpy(skb_push(frame, ETH_ALEN), dst, ETH_ALEN);
- } else {
- memcpy(skb_push(frame, sizeof(__be16)),
- &len, sizeof(__be16));
- memcpy(skb_push(frame, ETH_ALEN), src, ETH_ALEN);
- memcpy(skb_push(frame, ETH_ALEN), dst, ETH_ALEN);
- }
-
- if (!ieee80211_frame_allowed(rx)) {
- if (skb == frame) /* last frame */
- return RX_DROP_UNUSABLE;
- dev_kfree_skb(frame);
- continue;
- }
-
- ieee80211_deliver_skb(rx);
- }
-
- return RX_QUEUED;
-}
-
-static ieee80211_rx_result
-ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
-{
- struct net_device *dev = rx->dev;
- u16 fc;
- int err;
-
- fc = rx->fc;
- if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA))
- return RX_CONTINUE;
-
- if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
- return RX_DROP_MONITOR;
-
- err = ieee80211_data_to_8023(rx);
- if (unlikely(err))
- return RX_DROP_UNUSABLE;
-
- if (!ieee80211_frame_allowed(rx))
- return RX_DROP_MONITOR;
-
- rx->skb->dev = dev;
-
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += rx->skb->len;
-
- ieee80211_deliver_skb(rx);
-
- return RX_QUEUED;
-}
-
-static ieee80211_rx_result
-ieee80211_rx_h_ctrl(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_local *local = rx->local;
- struct ieee80211_hw *hw = &local->hw;
- struct sk_buff *skb = rx->skb;
- struct ieee80211_bar *bar = (struct ieee80211_bar *) skb->data;
- struct tid_ampdu_rx *tid_agg_rx;
- u16 start_seq_num;
- u16 tid;
-
- if (likely((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_CTL))
- return RX_CONTINUE;
-
- if ((rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BACK_REQ) {
- if (!rx->sta)
- return RX_CONTINUE;
- tid = le16_to_cpu(bar->control) >> 12;
- tid_agg_rx = &(rx->sta->ampdu_mlme.tid_rx[tid]);
- if (tid_agg_rx->state != HT_AGG_STATE_OPERATIONAL)
- return RX_CONTINUE;
-
- start_seq_num = le16_to_cpu(bar->start_seq_num) >> 4;
-
- /* reset session timer */
- if (tid_agg_rx->timeout) {
- unsigned long expires =
- jiffies + (tid_agg_rx->timeout / 1000) * HZ;
- mod_timer(&tid_agg_rx->session_timer, expires);
- }
-
- /* manage reordering buffer according to requested */
- /* sequence number */
- rcu_read_lock();
- ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, NULL,
- start_seq_num, 1);
- rcu_read_unlock();
- return RX_DROP_UNUSABLE;
- }
-
- return RX_CONTINUE;
-}
-
-static ieee80211_rx_result
-ieee80211_rx_h_mgmt(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_sub_if_data *sdata;
-
- if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
- return RX_DROP_MONITOR;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
- if ((sdata->vif.type == IEEE80211_IF_TYPE_STA ||
- sdata->vif.type == IEEE80211_IF_TYPE_IBSS) &&
- !(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
- ieee80211_sta_rx_mgmt(rx->dev, rx->skb, rx->u.rx.status);
- else
- return RX_DROP_MONITOR;
-
- return RX_QUEUED;
-}
-
-static void ieee80211_rx_michael_mic_report(struct net_device *dev,
- struct ieee80211_hdr *hdr,
- struct ieee80211_txrx_data *rx)
-{
- int keyidx, hdrlen;
- DECLARE_MAC_BUF(mac);
- DECLARE_MAC_BUF(mac2);
-
- hdrlen = ieee80211_get_hdrlen_from_skb(rx->skb);
- if (rx->skb->len >= hdrlen + 4)
- keyidx = rx->skb->data[hdrlen + 3] >> 6;
- else
- keyidx = -1;
-
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: TKIP hwaccel reported Michael MIC "
- "failure from %s to %s keyidx=%d\n",
- dev->name, print_mac(mac, hdr->addr2),
- print_mac(mac2, hdr->addr1), keyidx);
-
- if (!rx->sta) {
- /*
- * Some hardware seem to generate incorrect Michael MIC
- * reports; ignore them to avoid triggering countermeasures.
- */
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: ignored spurious Michael MIC "
- "error for unknown address %s\n",
- dev->name, print_mac(mac, hdr->addr2));
- goto ignore;
- }
-
- if (!(rx->fc & IEEE80211_FCTL_PROTECTED)) {
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: ignored spurious Michael MIC "
- "error for a frame with no PROTECTED flag (src "
- "%s)\n", dev->name, print_mac(mac, hdr->addr2));
- goto ignore;
- }
-
- if (rx->sdata->vif.type == IEEE80211_IF_TYPE_AP && keyidx) {
- /*
- * APs with pairwise keys should never receive Michael MIC
- * errors for non-zero keyidx because these are reserved for
- * group keys and only the AP is sending real multicast
- * frames in the BSS.
- */
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: ignored Michael MIC error for "
- "a frame with non-zero keyidx (%d)"
- " (src %s)\n", dev->name, keyidx,
- print_mac(mac, hdr->addr2));
- goto ignore;
- }
-
- if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA &&
- ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH)) {
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: ignored spurious Michael MIC "
- "error for a frame that cannot be encrypted "
- "(fc=0x%04x) (src %s)\n",
- dev->name, rx->fc, print_mac(mac, hdr->addr2));
- goto ignore;
- }
-
- mac80211_ev_michael_mic_failure(rx->dev, keyidx, hdr);
- ignore:
- dev_kfree_skb(rx->skb);
- rx->skb = NULL;
-}
-
-static void ieee80211_rx_cooked_monitor(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_local *local = rx->local;
- struct ieee80211_rtap_hdr {
- struct ieee80211_radiotap_header hdr;
- u8 flags;
- u8 rate;
- __le16 chan_freq;
- __le16 chan_flags;
- } __attribute__ ((packed)) *rthdr;
- struct sk_buff *skb = rx->skb, *skb2;
- struct net_device *prev_dev = NULL;
- struct ieee80211_rx_status *status = rx->u.rx.status;
-
- if (rx->flags & IEEE80211_TXRXD_RX_CMNTR_REPORTED)
- goto out_free_skb;
-
- if (skb_headroom(skb) < sizeof(*rthdr) &&
- pskb_expand_head(skb, sizeof(*rthdr), 0, GFP_ATOMIC))
- goto out_free_skb;
-
- rthdr = (void *)skb_push(skb, sizeof(*rthdr));
- memset(rthdr, 0, sizeof(*rthdr));
- rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr));
- rthdr->hdr.it_present =
- cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
- (1 << IEEE80211_RADIOTAP_RATE) |
- (1 << IEEE80211_RADIOTAP_CHANNEL));
-
- rthdr->rate = rx->u.rx.rate->bitrate / 5;
- rthdr->chan_freq = cpu_to_le16(status->freq);
-
- if (status->band == IEEE80211_BAND_5GHZ)
- rthdr->chan_flags = cpu_to_le16(IEEE80211_CHAN_OFDM |
- IEEE80211_CHAN_5GHZ);
- else
- rthdr->chan_flags = cpu_to_le16(IEEE80211_CHAN_DYN |
- IEEE80211_CHAN_2GHZ);
-
- skb_set_mac_header(skb, 0);
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- skb->pkt_type = PACKET_OTHERHOST;
- skb->protocol = htons(ETH_P_802_2);
-
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
- if (!netif_running(sdata->dev))
- continue;
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_MNTR ||
- !(sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
- continue;
-
- if (prev_dev) {
- skb2 = skb_clone(skb, GFP_ATOMIC);
- if (skb2) {
- skb2->dev = prev_dev;
- netif_rx(skb2);
- }
- }
-
- prev_dev = sdata->dev;
- sdata->dev->stats.rx_packets++;
- sdata->dev->stats.rx_bytes += skb->len;
- }
-
- if (prev_dev) {
- skb->dev = prev_dev;
- netif_rx(skb);
- skb = NULL;
- } else
- goto out_free_skb;
-
- rx->flags |= IEEE80211_TXRXD_RX_CMNTR_REPORTED;
- return;
-
- out_free_skb:
- dev_kfree_skb(skb);
-}
-
-typedef ieee80211_rx_result (*ieee80211_rx_handler)(struct ieee80211_txrx_data *);
-static ieee80211_rx_handler ieee80211_rx_handlers[] =
-{
- ieee80211_rx_h_if_stats,
- ieee80211_rx_h_passive_scan,
- ieee80211_rx_h_check,
- ieee80211_rx_h_decrypt,
- ieee80211_rx_h_sta_process,
- ieee80211_rx_h_defragment,
- ieee80211_rx_h_ps_poll,
- ieee80211_rx_h_michael_mic_verify,
- /* this must be after decryption - so header is counted in MPDU mic
- * must be before pae and data, so QOS_DATA format frames
- * are not passed to user space by these functions
- */
- ieee80211_rx_h_remove_qos_control,
- ieee80211_rx_h_amsdu,
- ieee80211_rx_h_data,
- ieee80211_rx_h_ctrl,
- ieee80211_rx_h_mgmt,
- NULL
-};
-
-static void ieee80211_invoke_rx_handlers(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_txrx_data *rx,
- struct sk_buff *skb)
-{
- ieee80211_rx_handler *handler;
- ieee80211_rx_result res = RX_DROP_MONITOR;
-
- rx->skb = skb;
- rx->sdata = sdata;
- rx->dev = sdata->dev;
-
- for (handler = ieee80211_rx_handlers; *handler != NULL; handler++) {
- res = (*handler)(rx);
-
- switch (res) {
- case RX_CONTINUE:
- continue;
- case RX_DROP_UNUSABLE:
- case RX_DROP_MONITOR:
- I802_DEBUG_INC(sdata->local->rx_handlers_drop);
- if (rx->sta)
- rx->sta->rx_dropped++;
- break;
- case RX_QUEUED:
- I802_DEBUG_INC(sdata->local->rx_handlers_queued);
- break;
- }
- break;
- }
-
- switch (res) {
- case RX_CONTINUE:
- case RX_DROP_MONITOR:
- ieee80211_rx_cooked_monitor(rx);
- break;
- case RX_DROP_UNUSABLE:
- dev_kfree_skb(rx->skb);
- break;
- }
-}
-
-/* main receive path */
-
-static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
- u8 *bssid, struct ieee80211_txrx_data *rx,
- struct ieee80211_hdr *hdr)
-{
- int multicast = is_multicast_ether_addr(hdr->addr1);
-
- switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_STA:
- if (!bssid)
- return 0;
- if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
- if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
- return 0;
- rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
- } else if (!multicast &&
- compare_ether_addr(sdata->dev->dev_addr,
- hdr->addr1) != 0) {
- if (!(sdata->dev->flags & IFF_PROMISC))
- return 0;
- rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
- }
- break;
- case IEEE80211_IF_TYPE_IBSS:
- if (!bssid)
- return 0;
- if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
- if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
- return 0;
- rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
- } else if (!multicast &&
- compare_ether_addr(sdata->dev->dev_addr,
- hdr->addr1) != 0) {
- if (!(sdata->dev->flags & IFF_PROMISC))
- return 0;
- rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
- } else if (!rx->sta)
- rx->sta = ieee80211_ibss_add_sta(sdata->dev, rx->skb,
- bssid, hdr->addr2);
- break;
- case IEEE80211_IF_TYPE_VLAN:
- case IEEE80211_IF_TYPE_AP:
- if (!bssid) {
- if (compare_ether_addr(sdata->dev->dev_addr,
- hdr->addr1))
- return 0;
- } else if (!ieee80211_bssid_match(bssid,
- sdata->dev->dev_addr)) {
- if (!(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
- return 0;
- rx->flags &= ~IEEE80211_TXRXD_RXRA_MATCH;
- }
- if (sdata->dev == sdata->local->mdev &&
- !(rx->flags & IEEE80211_TXRXD_RXIN_SCAN))
- /* do not receive anything via
- * master device when not scanning */
- return 0;
- break;
- case IEEE80211_IF_TYPE_WDS:
- if (bssid ||
- (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
- return 0;
- if (compare_ether_addr(sdata->u.wds.remote_addr, hdr->addr2))
- return 0;
- break;
- case IEEE80211_IF_TYPE_MNTR:
- /* take everything */
- break;
- case IEEE80211_IF_TYPE_INVALID:
- /* should never get here */
- WARN_ON(1);
- break;
- }
-
- return 1;
-}
-
-/*
- * This is the actual Rx frames handler. as it blongs to Rx path it must
- * be called with rcu_read_lock protection.
- */
-static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
- struct sk_buff *skb,
- struct ieee80211_rx_status *status,
- u32 load,
- struct ieee80211_rate *rate)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_hdr *hdr;
- struct ieee80211_txrx_data rx;
- u16 type;
- int prepares;
- struct ieee80211_sub_if_data *prev = NULL;
- struct sk_buff *skb_new;
- u8 *bssid;
-
- hdr = (struct ieee80211_hdr *) skb->data;
- memset(&rx, 0, sizeof(rx));
- rx.skb = skb;
- rx.local = local;
-
- rx.u.rx.status = status;
- rx.u.rx.load = load;
- rx.u.rx.rate = rate;
- rx.fc = le16_to_cpu(hdr->frame_control);
- type = rx.fc & IEEE80211_FCTL_FTYPE;
-
- if (type == IEEE80211_FTYPE_DATA || type == IEEE80211_FTYPE_MGMT)
- local->dot11ReceivedFragmentCount++;
-
- rx.sta = sta_info_get(local, hdr->addr2);
- if (rx.sta) {
- rx.dev = rx.sta->dev;
- rx.sdata = IEEE80211_DEV_TO_SUB_IF(rx.dev);
- }
-
- if ((status->flag & RX_FLAG_MMIC_ERROR)) {
- ieee80211_rx_michael_mic_report(local->mdev, hdr, &rx);
- goto end;
- }
-
- if (unlikely(local->sta_sw_scanning || local->sta_hw_scanning))
- rx.flags |= IEEE80211_TXRXD_RXIN_SCAN;
-
- ieee80211_parse_qos(&rx);
- ieee80211_verify_ip_alignment(&rx);
-
- skb = rx.skb;
-
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
- if (!netif_running(sdata->dev))
- continue;
-
- if (sdata->vif.type == IEEE80211_IF_TYPE_MNTR)
- continue;
-
- bssid = ieee80211_get_bssid(hdr, skb->len, sdata->vif.type);
- rx.flags |= IEEE80211_TXRXD_RXRA_MATCH;
- prepares = prepare_for_handlers(sdata, bssid, &rx, hdr);
-
- if (!prepares)
- continue;
-
- /*
- * frame is destined for this interface, but if it's not
- * also for the previous one we handle that after the
- * loop to avoid copying the SKB once too much
- */
-
- if (!prev) {
- prev = sdata;
- continue;
- }
-
- /*
- * frame was destined for the previous interface
- * so invoke RX handlers for it
- */
-
- skb_new = skb_copy(skb, GFP_ATOMIC);
- if (!skb_new) {
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: failed to copy "
- "multicast frame for %s",
- wiphy_name(local->hw.wiphy),
- prev->dev->name);
- continue;
- }
- rx.fc = le16_to_cpu(hdr->frame_control);
- ieee80211_invoke_rx_handlers(prev, &rx, skb_new);
- prev = sdata;
- }
- if (prev) {
- rx.fc = le16_to_cpu(hdr->frame_control);
- ieee80211_invoke_rx_handlers(prev, &rx, skb);
- } else
- dev_kfree_skb(skb);
-
- end:
- if (rx.sta)
- sta_info_put(rx.sta);
-}
-
-#define SEQ_MODULO 0x1000
-#define SEQ_MASK 0xfff
-
-static inline int seq_less(u16 sq1, u16 sq2)
-{
- return (((sq1 - sq2) & SEQ_MASK) > (SEQ_MODULO >> 1));
-}
-
-static inline u16 seq_inc(u16 sq)
-{
- return ((sq + 1) & SEQ_MASK);
-}
-
-static inline u16 seq_sub(u16 sq1, u16 sq2)
-{
- return ((sq1 - sq2) & SEQ_MASK);
-}
-
-
-/*
- * As it function blongs to Rx path it must be called with
- * the proper rcu_read_lock protection for its flow.
- */
-u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
- struct tid_ampdu_rx *tid_agg_rx,
- struct sk_buff *skb, u16 mpdu_seq_num,
- int bar_req)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_rx_status status;
- u16 head_seq_num, buf_size;
- int index;
- u32 pkt_load;
- struct ieee80211_supported_band *sband;
- struct ieee80211_rate *rate;
-
- buf_size = tid_agg_rx->buf_size;
- head_seq_num = tid_agg_rx->head_seq_num;
-
- /* frame with out of date sequence number */
- if (seq_less(mpdu_seq_num, head_seq_num)) {
- dev_kfree_skb(skb);
- return 1;
- }
-
- /* if frame sequence number exceeds our buffering window size or
- * block Ack Request arrived - release stored frames */
- if ((!seq_less(mpdu_seq_num, head_seq_num + buf_size)) || (bar_req)) {
- /* new head to the ordering buffer */
- if (bar_req)
- head_seq_num = mpdu_seq_num;
- else
- head_seq_num =
- seq_inc(seq_sub(mpdu_seq_num, buf_size));
- /* release stored frames up to new head to stack */
- while (seq_less(tid_agg_rx->head_seq_num, head_seq_num)) {
- index = seq_sub(tid_agg_rx->head_seq_num,
- tid_agg_rx->ssn)
- % tid_agg_rx->buf_size;
-
- if (tid_agg_rx->reorder_buf[index]) {
- /* release the reordered frames to stack */
- memcpy(&status,
- tid_agg_rx->reorder_buf[index]->cb,
- sizeof(status));
- sband = local->hw.wiphy->bands[status.band];
- rate = &sband->bitrates[status.rate_idx];
- pkt_load = ieee80211_rx_load_stats(local,
- tid_agg_rx->reorder_buf[index],
- &status, rate);
- __ieee80211_rx_handle_packet(hw,
- tid_agg_rx->reorder_buf[index],
- &status, pkt_load, rate);
- tid_agg_rx->stored_mpdu_num--;
- tid_agg_rx->reorder_buf[index] = NULL;
- }
- tid_agg_rx->head_seq_num =
- seq_inc(tid_agg_rx->head_seq_num);
- }
- if (bar_req)
- return 1;
- }
-
- /* now the new frame is always in the range of the reordering */
- /* buffer window */
- index = seq_sub(mpdu_seq_num, tid_agg_rx->ssn)
- % tid_agg_rx->buf_size;
- /* check if we already stored this frame */
- if (tid_agg_rx->reorder_buf[index]) {
- dev_kfree_skb(skb);
- return 1;
- }
-
- /* if arrived mpdu is in the right order and nothing else stored */
- /* release it immediately */
- if (mpdu_seq_num == tid_agg_rx->head_seq_num &&
- tid_agg_rx->stored_mpdu_num == 0) {
- tid_agg_rx->head_seq_num =
- seq_inc(tid_agg_rx->head_seq_num);
- return 0;
- }
-
- /* put the frame in the reordering buffer */
- tid_agg_rx->reorder_buf[index] = skb;
- tid_agg_rx->stored_mpdu_num++;
- /* release the buffer until next missing frame */
- index = seq_sub(tid_agg_rx->head_seq_num, tid_agg_rx->ssn)
- % tid_agg_rx->buf_size;
- while (tid_agg_rx->reorder_buf[index]) {
- /* release the reordered frame back to stack */
- memcpy(&status, tid_agg_rx->reorder_buf[index]->cb,
- sizeof(status));
- sband = local->hw.wiphy->bands[status.band];
- rate = &sband->bitrates[status.rate_idx];
- pkt_load = ieee80211_rx_load_stats(local,
- tid_agg_rx->reorder_buf[index],
- &status, rate);
- __ieee80211_rx_handle_packet(hw, tid_agg_rx->reorder_buf[index],
- &status, pkt_load, rate);
- tid_agg_rx->stored_mpdu_num--;
- tid_agg_rx->reorder_buf[index] = NULL;
- tid_agg_rx->head_seq_num = seq_inc(tid_agg_rx->head_seq_num);
- index = seq_sub(tid_agg_rx->head_seq_num,
- tid_agg_rx->ssn) % tid_agg_rx->buf_size;
- }
- return 1;
-}
-
-static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local,
- struct sk_buff *skb)
-{
- struct ieee80211_hw *hw = &local->hw;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct sta_info *sta;
- struct tid_ampdu_rx *tid_agg_rx;
- u16 fc, sc;
- u16 mpdu_seq_num;
- u8 ret = 0, *qc;
- int tid;
-
- sta = sta_info_get(local, hdr->addr2);
- if (!sta)
- return ret;
-
- fc = le16_to_cpu(hdr->frame_control);
-
- /* filter the QoS data rx stream according to
- * STA/TID and check if this STA/TID is on aggregation */
- if (!WLAN_FC_IS_QOS_DATA(fc))
- goto end_reorder;
-
- qc = skb->data + ieee80211_get_hdrlen(fc) - QOS_CONTROL_LEN;
- tid = qc[0] & QOS_CONTROL_TID_MASK;
- tid_agg_rx = &(sta->ampdu_mlme.tid_rx[tid]);
-
- if (tid_agg_rx->state != HT_AGG_STATE_OPERATIONAL)
- goto end_reorder;
-
- /* null data frames are excluded */
- if (unlikely(fc & IEEE80211_STYPE_NULLFUNC))
- goto end_reorder;
-
- /* new un-ordered ampdu frame - process it */
-
- /* reset session timer */
- if (tid_agg_rx->timeout) {
- unsigned long expires =
- jiffies + (tid_agg_rx->timeout / 1000) * HZ;
- mod_timer(&tid_agg_rx->session_timer, expires);
- }
-
- /* if this mpdu is fragmented - terminate rx aggregation session */
- sc = le16_to_cpu(hdr->seq_ctrl);
- if (sc & IEEE80211_SCTL_FRAG) {
- ieee80211_sta_stop_rx_ba_session(sta->dev, sta->addr,
- tid, 0, WLAN_REASON_QSTA_REQUIRE_SETUP);
- ret = 1;
- goto end_reorder;
- }
-
- /* according to mpdu sequence number deal with reordering buffer */
- mpdu_seq_num = (sc & IEEE80211_SCTL_SEQ) >> 4;
- ret = ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, skb,
- mpdu_seq_num, 0);
-end_reorder:
- if (sta)
- sta_info_put(sta);
- return ret;
-}
-
-/*
- * This is the receive path handler. It is called by a low level driver when an
- * 802.11 MPDU is received from the hardware.
- */
-void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_rx_status *status)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- u32 pkt_load;
- struct ieee80211_rate *rate = NULL;
- struct ieee80211_supported_band *sband;
-
- if (status->band < 0 ||
- status->band > IEEE80211_NUM_BANDS) {
- WARN_ON(1);
- return;
- }
-
- sband = local->hw.wiphy->bands[status->band];
-
- if (!sband ||
- status->rate_idx < 0 ||
- status->rate_idx >= sband->n_bitrates) {
- WARN_ON(1);
- return;
- }
-
- rate = &sband->bitrates[status->rate_idx];
-
- /*
- * key references and virtual interfaces are protected using RCU
- * and this requires that we are in a read-side RCU section during
- * receive processing
- */
- rcu_read_lock();
-
- /*
- * Frames with failed FCS/PLCP checksum are not returned,
- * all other frames are returned without radiotap header
- * if it was previously present.
- * Also, frames with less than 16 bytes are dropped.
- */
- skb = ieee80211_rx_monitor(local, skb, status, rate);
- if (!skb) {
- rcu_read_unlock();
- return;
- }
-
- pkt_load = ieee80211_rx_load_stats(local, skb, status, rate);
- local->channel_use_raw += pkt_load;
-
- if (!ieee80211_rx_reorder_ampdu(local, skb))
- __ieee80211_rx_handle_packet(hw, skb, status, pkt_load, rate);
-
- rcu_read_unlock();
-}
-EXPORT_SYMBOL(__ieee80211_rx);
-
-/* This is a version of the rx handler that can be called from hard irq
- * context. Post the skb on the queue and schedule the tasklet */
-void ieee80211_rx_irqsafe(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_rx_status *status)
-{
- struct ieee80211_local *local = hw_to_local(hw);
-
- BUILD_BUG_ON(sizeof(struct ieee80211_rx_status) > sizeof(skb->cb));
-
- skb->dev = local->mdev;
- /* copy status into skb->cb for use by tasklet */
- memcpy(skb->cb, status, sizeof(*status));
- skb->pkt_type = IEEE80211_RX_MSG;
- skb_queue_tail(&local->skb_queue, skb);
- tasklet_schedule(&local->tasklet);
-}
-EXPORT_SYMBOL(ieee80211_rx_irqsafe);
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-#include <linux/if_arp.h>
-#include <linux/timer.h>
-
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-#include "sta_info.h"
-#include "debugfs_sta.h"
-
-/* Caller must hold local->sta_lock */
-static void sta_info_hash_add(struct ieee80211_local *local,
- struct sta_info *sta)
-{
- sta->hnext = local->sta_hash[STA_HASH(sta->addr)];
- local->sta_hash[STA_HASH(sta->addr)] = sta;
-}
-
-
-/* Caller must hold local->sta_lock */
-static int sta_info_hash_del(struct ieee80211_local *local,
- struct sta_info *sta)
-{
- struct sta_info *s;
-
- s = local->sta_hash[STA_HASH(sta->addr)];
- if (!s)
- return -ENOENT;
- if (s == sta) {
- local->sta_hash[STA_HASH(sta->addr)] = s->hnext;
- return 0;
- }
-
- while (s->hnext && s->hnext != sta)
- s = s->hnext;
- if (s->hnext) {
- s->hnext = sta->hnext;
- return 0;
- }
-
- return -ENOENT;
-}
-
-struct sta_info *sta_info_get(struct ieee80211_local *local, u8 *addr)
-{
- struct sta_info *sta;
-
- read_lock_bh(&local->sta_lock);
- sta = local->sta_hash[STA_HASH(addr)];
- while (sta) {
- if (memcmp(sta->addr, addr, ETH_ALEN) == 0) {
- __sta_info_get(sta);
- break;
- }
- sta = sta->hnext;
- }
- read_unlock_bh(&local->sta_lock);
-
- return sta;
-}
-EXPORT_SYMBOL(sta_info_get);
-
-
-static void sta_info_release(struct kref *kref)
-{
- struct sta_info *sta = container_of(kref, struct sta_info, kref);
- struct ieee80211_local *local = sta->local;
- struct sk_buff *skb;
- int i;
-
- /* free sta structure; it has already been removed from
- * hash table etc. external structures. Make sure that all
- * buffered frames are release (one might have been added
- * after sta_info_free() was called). */
- while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
- local->total_ps_buffered--;
- dev_kfree_skb_any(skb);
- }
- while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
- dev_kfree_skb_any(skb);
- }
- for (i = 0; i < STA_TID_NUM; i++) {
- del_timer_sync(&sta->ampdu_mlme.tid_rx[i].session_timer);
- del_timer_sync(&sta->ampdu_mlme.tid_tx[i].addba_resp_timer);
- }
- rate_control_free_sta(sta->rate_ctrl, sta->rate_ctrl_priv);
- rate_control_put(sta->rate_ctrl);
- kfree(sta);
-}
-
-
-void sta_info_put(struct sta_info *sta)
-{
- kref_put(&sta->kref, sta_info_release);
-}
-EXPORT_SYMBOL(sta_info_put);
-
-
-struct sta_info * sta_info_add(struct ieee80211_local *local,
- struct net_device *dev, u8 *addr, gfp_t gfp)
-{
- struct sta_info *sta;
- int i;
- DECLARE_MAC_BUF(mac);
-
- sta = kzalloc(sizeof(*sta), gfp);
- if (!sta)
- return NULL;
-
- kref_init(&sta->kref);
-
- sta->rate_ctrl = rate_control_get(local->rate_ctrl);
- sta->rate_ctrl_priv = rate_control_alloc_sta(sta->rate_ctrl, gfp);
- if (!sta->rate_ctrl_priv) {
- rate_control_put(sta->rate_ctrl);
- kfree(sta);
- return NULL;
- }
-
- memcpy(sta->addr, addr, ETH_ALEN);
- sta->local = local;
- sta->dev = dev;
- spin_lock_init(&sta->ampdu_mlme.ampdu_rx);
- spin_lock_init(&sta->ampdu_mlme.ampdu_tx);
- for (i = 0; i < STA_TID_NUM; i++) {
- /* timer_to_tid must be initialized with identity mapping to
- * enable session_timer's data differentiation. refer to
- * sta_rx_agg_session_timer_expired for useage */
- sta->timer_to_tid[i] = i;
- /* tid to tx queue: initialize according to HW (0 is valid) */
- sta->tid_to_tx_q[i] = local->hw.queues;
- /* rx timers */
- sta->ampdu_mlme.tid_rx[i].session_timer.function =
- sta_rx_agg_session_timer_expired;
- sta->ampdu_mlme.tid_rx[i].session_timer.data =
- (unsigned long)&sta->timer_to_tid[i];
- init_timer(&sta->ampdu_mlme.tid_rx[i].session_timer);
- /* tx timers */
- sta->ampdu_mlme.tid_tx[i].addba_resp_timer.function =
- sta_addba_resp_timer_expired;
- sta->ampdu_mlme.tid_tx[i].addba_resp_timer.data =
- (unsigned long)&sta->timer_to_tid[i];
- init_timer(&sta->ampdu_mlme.tid_tx[i].addba_resp_timer);
- }
- skb_queue_head_init(&sta->ps_tx_buf);
- skb_queue_head_init(&sta->tx_filtered);
- __sta_info_get(sta); /* sta used by caller, decremented by
- * sta_info_put() */
- write_lock_bh(&local->sta_lock);
- list_add(&sta->list, &local->sta_list);
- local->num_sta++;
- sta_info_hash_add(local, sta);
- if (local->ops->sta_notify) {
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
- sdata = sdata->u.vlan.ap;
-
- local->ops->sta_notify(local_to_hw(local), &sdata->vif,
- STA_NOTIFY_ADD, addr);
- }
- write_unlock_bh(&local->sta_lock);
-
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: Added STA %s\n",
- wiphy_name(local->hw.wiphy), print_mac(mac, addr));
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- /* debugfs entry adding might sleep, so schedule process
- * context task for adding entry for STAs that do not yet
- * have one. */
- queue_work(local->hw.workqueue, &local->sta_debugfs_add);
-#endif
-
- return sta;
-}
-
-/* Caller must hold local->sta_lock */
-void sta_info_remove(struct sta_info *sta)
-{
- struct ieee80211_local *local = sta->local;
- struct ieee80211_sub_if_data *sdata;
-
- /* don't do anything if we've been removed already */
- if (sta_info_hash_del(local, sta))
- return;
-
- list_del(&sta->list);
- sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
- if (sta->flags & WLAN_STA_PS) {
- sta->flags &= ~WLAN_STA_PS;
- if (sdata->bss)
- atomic_dec(&sdata->bss->num_sta_ps);
- }
- local->num_sta--;
- sta_info_remove_aid_ptr(sta);
-
-}
-
-void sta_info_free(struct sta_info *sta)
-{
- struct sk_buff *skb;
- struct ieee80211_local *local = sta->local;
- DECLARE_MAC_BUF(mac);
-
- might_sleep();
-
- write_lock_bh(&local->sta_lock);
- sta_info_remove(sta);
- write_unlock_bh(&local->sta_lock);
-
- while ((skb = skb_dequeue(&sta->ps_tx_buf)) != NULL) {
- local->total_ps_buffered--;
- dev_kfree_skb(skb);
- }
- while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
- dev_kfree_skb(skb);
- }
-
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: Removed STA %s\n",
- wiphy_name(local->hw.wiphy), print_mac(mac, sta->addr));
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
-
- ieee80211_key_free(sta->key);
- sta->key = NULL;
-
- if (local->ops->sta_notify) {
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
-
- if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
- sdata = sdata->u.vlan.ap;
-
- local->ops->sta_notify(local_to_hw(local), &sdata->vif,
- STA_NOTIFY_REMOVE, sta->addr);
- }
-
- rate_control_remove_sta_debugfs(sta);
- ieee80211_sta_debugfs_remove(sta);
-
- sta_info_put(sta);
-}
-
-
-static inline int sta_info_buffer_expired(struct ieee80211_local *local,
- struct sta_info *sta,
- struct sk_buff *skb)
-{
- struct ieee80211_tx_packet_data *pkt_data;
- int timeout;
-
- if (!skb)
- return 0;
-
- pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
-
- /* Timeout: (2 * listen_interval * beacon_int * 1024 / 1000000) sec */
- timeout = (sta->listen_interval * local->hw.conf.beacon_int * 32 /
- 15625) * HZ;
- if (timeout < STA_TX_BUFFER_EXPIRE)
- timeout = STA_TX_BUFFER_EXPIRE;
- return time_after(jiffies, pkt_data->jiffies + timeout);
-}
-
-
-static void sta_info_cleanup_expire_buffered(struct ieee80211_local *local,
- struct sta_info *sta)
-{
- unsigned long flags;
- struct sk_buff *skb;
- DECLARE_MAC_BUF(mac);
-
- if (skb_queue_empty(&sta->ps_tx_buf))
- return;
-
- for (;;) {
- spin_lock_irqsave(&sta->ps_tx_buf.lock, flags);
- skb = skb_peek(&sta->ps_tx_buf);
- if (sta_info_buffer_expired(local, sta, skb)) {
- skb = __skb_dequeue(&sta->ps_tx_buf);
- if (skb_queue_empty(&sta->ps_tx_buf))
- sta->flags &= ~WLAN_STA_TIM;
- } else
- skb = NULL;
- spin_unlock_irqrestore(&sta->ps_tx_buf.lock, flags);
-
- if (skb) {
- local->total_ps_buffered--;
- printk(KERN_DEBUG "Buffered frame expired (STA "
- "%s)\n", print_mac(mac, sta->addr));
- dev_kfree_skb(skb);
- } else
- break;
- }
-}
-
-
-static void sta_info_cleanup(unsigned long data)
-{
- struct ieee80211_local *local = (struct ieee80211_local *) data;
- struct sta_info *sta;
-
- read_lock_bh(&local->sta_lock);
- list_for_each_entry(sta, &local->sta_list, list) {
- __sta_info_get(sta);
- sta_info_cleanup_expire_buffered(local, sta);
- sta_info_put(sta);
- }
- read_unlock_bh(&local->sta_lock);
-
- local->sta_cleanup.expires =
- round_jiffies(jiffies + STA_INFO_CLEANUP_INTERVAL);
- add_timer(&local->sta_cleanup);
-}
-
-#ifdef CONFIG_MAC80211_DEBUGFS
-static void sta_info_debugfs_add_task(struct work_struct *work)
-{
- struct ieee80211_local *local =
- container_of(work, struct ieee80211_local, sta_debugfs_add);
- struct sta_info *sta, *tmp;
-
- while (1) {
- sta = NULL;
- read_lock_bh(&local->sta_lock);
- list_for_each_entry(tmp, &local->sta_list, list) {
- if (!tmp->debugfs.dir) {
- sta = tmp;
- __sta_info_get(sta);
- break;
- }
- }
- read_unlock_bh(&local->sta_lock);
-
- if (!sta)
- break;
-
- ieee80211_sta_debugfs_add(sta);
- rate_control_add_sta_debugfs(sta);
- sta_info_put(sta);
- }
-}
-#endif
-
-void sta_info_init(struct ieee80211_local *local)
-{
- rwlock_init(&local->sta_lock);
- INIT_LIST_HEAD(&local->sta_list);
-
- init_timer(&local->sta_cleanup);
- local->sta_cleanup.expires =
- round_jiffies(jiffies + STA_INFO_CLEANUP_INTERVAL);
- local->sta_cleanup.data = (unsigned long) local;
- local->sta_cleanup.function = sta_info_cleanup;
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- INIT_WORK(&local->sta_debugfs_add, sta_info_debugfs_add_task);
-#endif
-}
-
-int sta_info_start(struct ieee80211_local *local)
-{
- add_timer(&local->sta_cleanup);
- return 0;
-}
-
-void sta_info_stop(struct ieee80211_local *local)
-{
- del_timer(&local->sta_cleanup);
- sta_info_flush(local, NULL);
-}
-
-void sta_info_remove_aid_ptr(struct sta_info *sta)
-{
- struct ieee80211_sub_if_data *sdata;
-
- if (sta->aid <= 0)
- return;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
-
- if (sdata->local->ops->set_tim)
- sdata->local->ops->set_tim(local_to_hw(sdata->local),
- sta->aid, 0);
- if (sdata->bss)
- __bss_tim_clear(sdata->bss, sta->aid);
-}
-
-
-/**
- * sta_info_flush - flush matching STA entries from the STA table
- * @local: local interface data
- * @dev: matching rule for the net device (sta->dev) or %NULL to match all STAs
- */
-void sta_info_flush(struct ieee80211_local *local, struct net_device *dev)
-{
- struct sta_info *sta, *tmp;
- LIST_HEAD(tmp_list);
-
- write_lock_bh(&local->sta_lock);
- list_for_each_entry_safe(sta, tmp, &local->sta_list, list)
- if (!dev || dev == sta->dev) {
- __sta_info_get(sta);
- sta_info_remove(sta);
- list_add_tail(&sta->list, &tmp_list);
- }
- write_unlock_bh(&local->sta_lock);
-
- list_for_each_entry_safe(sta, tmp, &tmp_list, list) {
- sta_info_free(sta);
- sta_info_put(sta);
- }
-}
+++ /dev/null
-/*
- * Copyright 2002-2005, Devicescape Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef STA_INFO_H
-#define STA_INFO_H
-
-#include <linux/list.h>
-#include <linux/types.h>
-#include <linux/if_ether.h>
-#include <linux/kref.h>
-#include "ieee80211_key.h"
-
-/**
- * enum ieee80211_sta_info_flags - Stations flags
- *
- * These flags are used with &struct sta_info's @flags member.
- *
- * @WLAN_STA_AUTH: Station is authenticated.
- * @WLAN_STA_ASSOC: Station is associated.
- * @WLAN_STA_PS: Station is in power-save mode
- * @WLAN_STA_TIM: TIM bit is on for this PS station (traffic buffered)
- * @WLAN_STA_AUTHORIZED: Station is authorized to send/receive traffic.
- * This bit is always checked so needs to be enabled for all stations
- * when virtual port control is not in use.
- * @WLAN_STA_SHORT_PREAMBLE: Station is capable of receiving short-preamble
- * frames.
- * @WLAN_STA_ASSOC_AP: We're associated to that station, it is an AP.
- * @WLAN_STA_WME: Station is a QoS-STA.
- * @WLAN_STA_WDS: Station is one of our WDS peers.
- */
-enum ieee80211_sta_info_flags {
- WLAN_STA_AUTH = 1<<0,
- WLAN_STA_ASSOC = 1<<1,
- WLAN_STA_PS = 1<<2,
- WLAN_STA_TIM = 1<<3,
- WLAN_STA_AUTHORIZED = 1<<4,
- WLAN_STA_SHORT_PREAMBLE = 1<<5,
- WLAN_STA_ASSOC_AP = 1<<6,
- WLAN_STA_WME = 1<<7,
- WLAN_STA_WDS = 1<<8,
-};
-
-#define STA_TID_NUM 16
-#define ADDBA_RESP_INTERVAL HZ
-#define HT_AGG_MAX_RETRIES (0x3)
-
-#define HT_AGG_STATE_INITIATOR_SHIFT (4)
-
-#define HT_ADDBA_REQUESTED_MSK BIT(0)
-#define HT_ADDBA_DRV_READY_MSK BIT(1)
-#define HT_ADDBA_RECEIVED_MSK BIT(2)
-#define HT_AGG_STATE_REQ_STOP_BA_MSK BIT(3)
-#define HT_AGG_STATE_INITIATOR_MSK BIT(HT_AGG_STATE_INITIATOR_SHIFT)
-#define HT_AGG_STATE_IDLE (0x0)
-#define HT_AGG_STATE_OPERATIONAL (HT_ADDBA_REQUESTED_MSK | \
- HT_ADDBA_DRV_READY_MSK | \
- HT_ADDBA_RECEIVED_MSK)
-
-/**
- * struct tid_ampdu_tx - TID aggregation information (Tx).
- *
- * @state: TID's state in session state machine.
- * @dialog_token: dialog token for aggregation session
- * @ssn: Starting Sequence Number expected to be aggregated.
- * @addba_resp_timer: timer for peer's response to addba request
- * @addba_req_num: number of times addBA request has been sent.
- */
-struct tid_ampdu_tx {
- u8 state;
- u8 dialog_token;
- u16 ssn;
- struct timer_list addba_resp_timer;
- u8 addba_req_num;
-};
-
-/**
- * struct tid_ampdu_rx - TID aggregation information (Rx).
- *
- * @state: TID's state in session state machine.
- * @dialog_token: dialog token for aggregation session
- * @ssn: Starting Sequence Number expected to be aggregated.
- * @buf_size: buffer size for incoming A-MPDUs
- * @timeout: reset timer value.
- * @head_seq_num: head sequence number in reordering buffer.
- * @stored_mpdu_num: number of MPDUs in reordering buffer
- * @reorder_buf: buffer to reorder incoming aggregated MPDUs
- * @session_timer: check if peer keeps Tx-ing on the TID (by timeout value)
- */
-struct tid_ampdu_rx {
- u8 state;
- u8 dialog_token;
- u16 ssn;
- u16 buf_size;
- u16 timeout;
- u16 head_seq_num;
- u16 stored_mpdu_num;
- struct sk_buff **reorder_buf;
- struct timer_list session_timer;
-};
-
-/**
- * struct sta_ampdu_mlme - STA aggregation information.
- *
- * @tid_rx: aggregation info for Rx per TID
- * @tid_tx: aggregation info for Tx per TID
- * @ampdu_rx: for locking sections in aggregation Rx flow
- * @ampdu_tx: for locking sectionsi in aggregation Tx flow
- * @dialog_token_allocator: dialog token enumerator for each new session;
- */
-struct sta_ampdu_mlme {
- struct tid_ampdu_rx tid_rx[STA_TID_NUM];
- struct tid_ampdu_tx tid_tx[STA_TID_NUM];
- spinlock_t ampdu_rx;
- spinlock_t ampdu_tx;
- u8 dialog_token_allocator;
-};
-
-struct sta_info {
- struct kref kref;
- struct list_head list;
- struct sta_info *hnext; /* next entry in hash table list */
-
- struct ieee80211_local *local;
-
- u8 addr[ETH_ALEN];
- u16 aid; /* STA's unique AID (1..2007), 0 = not yet assigned */
- u32 flags; /* WLAN_STA_ */
-
- struct sk_buff_head ps_tx_buf; /* buffer of TX frames for station in
- * power saving state */
- int pspoll; /* whether STA has send a PS Poll frame */
- struct sk_buff_head tx_filtered; /* buffer of TX frames that were
- * already given to low-level driver,
- * but were filtered */
- int clear_dst_mask;
-
- unsigned long rx_packets, tx_packets; /* number of RX/TX MSDUs */
- unsigned long rx_bytes, tx_bytes;
- unsigned long tx_retry_failed, tx_retry_count;
- unsigned long tx_filtered_count;
-
- unsigned int wep_weak_iv_count; /* number of RX frames with weak IV */
-
- unsigned long last_rx;
- /* bitmap of supported rates per band */
- u64 supp_rates[IEEE80211_NUM_BANDS];
- int txrate_idx;
- /* last rates used to send a frame to this STA */
- int last_txrate_idx, last_nonerp_txrate_idx;
-
- struct net_device *dev; /* which net device is this station associated
- * to */
-
- struct ieee80211_key *key;
-
- u32 tx_num_consecutive_failures;
- u32 tx_num_mpdu_ok;
- u32 tx_num_mpdu_fail;
-
- struct rate_control_ref *rate_ctrl;
- void *rate_ctrl_priv;
-
- /* last received seq/frag number from this STA (per RX queue) */
- __le16 last_seq_ctrl[NUM_RX_DATA_QUEUES];
- unsigned long num_duplicates; /* number of duplicate frames received
- * from this STA */
- unsigned long tx_fragments; /* number of transmitted MPDUs */
- unsigned long rx_fragments; /* number of received MPDUs */
- unsigned long rx_dropped; /* number of dropped MPDUs from this STA */
-
- int last_rssi; /* RSSI of last received frame from this STA */
- int last_signal; /* signal of last received frame from this STA */
- int last_noise; /* noise of last received frame from this STA */
- int last_ack_rssi[3]; /* RSSI of last received ACKs from this STA */
- unsigned long last_ack;
- int channel_use;
- int channel_use_raw;
-
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
- unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
-#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
-
- u16 listen_interval;
-
- struct ieee80211_ht_info ht_info; /* 802.11n HT capabilities
- of this STA */
- struct sta_ampdu_mlme ampdu_mlme;
- u8 timer_to_tid[STA_TID_NUM]; /* convert timer id to tid */
- u8 tid_to_tx_q[STA_TID_NUM]; /* map tid to tx queue */
-
-#ifdef CONFIG_MAC80211_DEBUGFS
- struct sta_info_debugfsdentries {
- struct dentry *dir;
- struct dentry *flags;
- struct dentry *num_ps_buf_frames;
- struct dentry *last_ack_rssi;
- struct dentry *last_ack_ms;
- struct dentry *inactive_ms;
- struct dentry *last_seq_ctrl;
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- struct dentry *wme_rx_queue;
- struct dentry *wme_tx_queue;
-#endif
- struct dentry *agg_status;
- } debugfs;
-#endif
-};
-
-
-/* Maximum number of concurrently registered stations */
-#define MAX_STA_COUNT 2007
-
-#define STA_HASH_SIZE 256
-#define STA_HASH(sta) (sta[5])
-
-
-/* Maximum number of frames to buffer per power saving station */
-#define STA_MAX_TX_BUFFER 128
-
-/* Minimum buffered frame expiry time. If STA uses listen interval that is
- * smaller than this value, the minimum value here is used instead. */
-#define STA_TX_BUFFER_EXPIRE (10 * HZ)
-
-/* How often station data is cleaned up (e.g., expiration of buffered frames)
- */
-#define STA_INFO_CLEANUP_INTERVAL (10 * HZ)
-
-static inline void __sta_info_get(struct sta_info *sta)
-{
- kref_get(&sta->kref);
-}
-
-struct sta_info * sta_info_get(struct ieee80211_local *local, u8 *addr);
-void sta_info_put(struct sta_info *sta);
-struct sta_info * sta_info_add(struct ieee80211_local *local,
- struct net_device *dev, u8 *addr, gfp_t gfp);
-void sta_info_remove(struct sta_info *sta);
-void sta_info_free(struct sta_info *sta);
-void sta_info_init(struct ieee80211_local *local);
-int sta_info_start(struct ieee80211_local *local);
-void sta_info_stop(struct ieee80211_local *local);
-void sta_info_remove_aid_ptr(struct sta_info *sta);
-void sta_info_flush(struct ieee80211_local *local, struct net_device *dev);
-
-#endif /* STA_INFO_H */
+++ /dev/null
-/*
- * Copyright 2002-2004, Instant802 Networks, Inc.
- * Copyright 2005, Devicescape Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/netdevice.h>
-
-#include <net/mac80211.h>
-#include "ieee80211_key.h"
-#include "tkip.h"
-#include "wep.h"
-
-
-/* TKIP key mixing functions */
-
-
-#define PHASE1_LOOP_COUNT 8
-
-
-/* 2-byte by 2-byte subset of the full AES S-box table; second part of this
- * table is identical to first part but byte-swapped */
-static const u16 tkip_sbox[256] =
-{
- 0xC6A5, 0xF884, 0xEE99, 0xF68D, 0xFF0D, 0xD6BD, 0xDEB1, 0x9154,
- 0x6050, 0x0203, 0xCEA9, 0x567D, 0xE719, 0xB562, 0x4DE6, 0xEC9A,
- 0x8F45, 0x1F9D, 0x8940, 0xFA87, 0xEF15, 0xB2EB, 0x8EC9, 0xFB0B,
- 0x41EC, 0xB367, 0x5FFD, 0x45EA, 0x23BF, 0x53F7, 0xE496, 0x9B5B,
- 0x75C2, 0xE11C, 0x3DAE, 0x4C6A, 0x6C5A, 0x7E41, 0xF502, 0x834F,
- 0x685C, 0x51F4, 0xD134, 0xF908, 0xE293, 0xAB73, 0x6253, 0x2A3F,
- 0x080C, 0x9552, 0x4665, 0x9D5E, 0x3028, 0x37A1, 0x0A0F, 0x2FB5,
- 0x0E09, 0x2436, 0x1B9B, 0xDF3D, 0xCD26, 0x4E69, 0x7FCD, 0xEA9F,
- 0x121B, 0x1D9E, 0x5874, 0x342E, 0x362D, 0xDCB2, 0xB4EE, 0x5BFB,
- 0xA4F6, 0x764D, 0xB761, 0x7DCE, 0x527B, 0xDD3E, 0x5E71, 0x1397,
- 0xA6F5, 0xB968, 0x0000, 0xC12C, 0x4060, 0xE31F, 0x79C8, 0xB6ED,
- 0xD4BE, 0x8D46, 0x67D9, 0x724B, 0x94DE, 0x98D4, 0xB0E8, 0x854A,
- 0xBB6B, 0xC52A, 0x4FE5, 0xED16, 0x86C5, 0x9AD7, 0x6655, 0x1194,
- 0x8ACF, 0xE910, 0x0406, 0xFE81, 0xA0F0, 0x7844, 0x25BA, 0x4BE3,
- 0xA2F3, 0x5DFE, 0x80C0, 0x058A, 0x3FAD, 0x21BC, 0x7048, 0xF104,
- 0x63DF, 0x77C1, 0xAF75, 0x4263, 0x2030, 0xE51A, 0xFD0E, 0xBF6D,
- 0x814C, 0x1814, 0x2635, 0xC32F, 0xBEE1, 0x35A2, 0x88CC, 0x2E39,
- 0x9357, 0x55F2, 0xFC82, 0x7A47, 0xC8AC, 0xBAE7, 0x322B, 0xE695,
- 0xC0A0, 0x1998, 0x9ED1, 0xA37F, 0x4466, 0x547E, 0x3BAB, 0x0B83,
- 0x8CCA, 0xC729, 0x6BD3, 0x283C, 0xA779, 0xBCE2, 0x161D, 0xAD76,
- 0xDB3B, 0x6456, 0x744E, 0x141E, 0x92DB, 0x0C0A, 0x486C, 0xB8E4,
- 0x9F5D, 0xBD6E, 0x43EF, 0xC4A6, 0x39A8, 0x31A4, 0xD337, 0xF28B,
- 0xD532, 0x8B43, 0x6E59, 0xDAB7, 0x018C, 0xB164, 0x9CD2, 0x49E0,
- 0xD8B4, 0xACFA, 0xF307, 0xCF25, 0xCAAF, 0xF48E, 0x47E9, 0x1018,
- 0x6FD5, 0xF088, 0x4A6F, 0x5C72, 0x3824, 0x57F1, 0x73C7, 0x9751,
- 0xCB23, 0xA17C, 0xE89C, 0x3E21, 0x96DD, 0x61DC, 0x0D86, 0x0F85,
- 0xE090, 0x7C42, 0x71C4, 0xCCAA, 0x90D8, 0x0605, 0xF701, 0x1C12,
- 0xC2A3, 0x6A5F, 0xAEF9, 0x69D0, 0x1791, 0x9958, 0x3A27, 0x27B9,
- 0xD938, 0xEB13, 0x2BB3, 0x2233, 0xD2BB, 0xA970, 0x0789, 0x33A7,
- 0x2DB6, 0x3C22, 0x1592, 0xC920, 0x8749, 0xAAFF, 0x5078, 0xA57A,
- 0x038F, 0x59F8, 0x0980, 0x1A17, 0x65DA, 0xD731, 0x84C6, 0xD0B8,
- 0x82C3, 0x29B0, 0x5A77, 0x1E11, 0x7BCB, 0xA8FC, 0x6DD6, 0x2C3A,
-};
-
-
-static inline u16 Mk16(u8 x, u8 y)
-{
- return ((u16) x << 8) | (u16) y;
-}
-
-
-static inline u8 Hi8(u16 v)
-{
- return v >> 8;
-}
-
-
-static inline u8 Lo8(u16 v)
-{
- return v & 0xff;
-}
-
-
-static inline u16 Hi16(u32 v)
-{
- return v >> 16;
-}
-
-
-static inline u16 Lo16(u32 v)
-{
- return v & 0xffff;
-}
-
-
-static inline u16 RotR1(u16 v)
-{
- return (v >> 1) | ((v & 0x0001) << 15);
-}
-
-
-static inline u16 tkip_S(u16 val)
-{
- u16 a = tkip_sbox[Hi8(val)];
-
- return tkip_sbox[Lo8(val)] ^ Hi8(a) ^ (Lo8(a) << 8);
-}
-
-
-
-/* P1K := Phase1(TA, TK, TSC)
- * TA = transmitter address (48 bits)
- * TK = dot11DefaultKeyValue or dot11KeyMappingValue (128 bits)
- * TSC = TKIP sequence counter (48 bits, only 32 msb bits used)
- * P1K: 80 bits
- */
-static void tkip_mixing_phase1(const u8 *ta, const u8 *tk, u32 tsc_IV32,
- u16 *p1k)
-{
- int i, j;
-
- p1k[0] = Lo16(tsc_IV32);
- p1k[1] = Hi16(tsc_IV32);
- p1k[2] = Mk16(ta[1], ta[0]);
- p1k[3] = Mk16(ta[3], ta[2]);
- p1k[4] = Mk16(ta[5], ta[4]);
-
- for (i = 0; i < PHASE1_LOOP_COUNT; i++) {
- j = 2 * (i & 1);
- p1k[0] += tkip_S(p1k[4] ^ Mk16(tk[ 1 + j], tk[ 0 + j]));
- p1k[1] += tkip_S(p1k[0] ^ Mk16(tk[ 5 + j], tk[ 4 + j]));
- p1k[2] += tkip_S(p1k[1] ^ Mk16(tk[ 9 + j], tk[ 8 + j]));
- p1k[3] += tkip_S(p1k[2] ^ Mk16(tk[13 + j], tk[12 + j]));
- p1k[4] += tkip_S(p1k[3] ^ Mk16(tk[ 1 + j], tk[ 0 + j])) + i;
- }
-}
-
-
-static void tkip_mixing_phase2(const u16 *p1k, const u8 *tk, u16 tsc_IV16,
- u8 *rc4key)
-{
- u16 ppk[6];
- int i;
-
- ppk[0] = p1k[0];
- ppk[1] = p1k[1];
- ppk[2] = p1k[2];
- ppk[3] = p1k[3];
- ppk[4] = p1k[4];
- ppk[5] = p1k[4] + tsc_IV16;
-
- ppk[0] += tkip_S(ppk[5] ^ Mk16(tk[ 1], tk[ 0]));
- ppk[1] += tkip_S(ppk[0] ^ Mk16(tk[ 3], tk[ 2]));
- ppk[2] += tkip_S(ppk[1] ^ Mk16(tk[ 5], tk[ 4]));
- ppk[3] += tkip_S(ppk[2] ^ Mk16(tk[ 7], tk[ 6]));
- ppk[4] += tkip_S(ppk[3] ^ Mk16(tk[ 9], tk[ 8]));
- ppk[5] += tkip_S(ppk[4] ^ Mk16(tk[11], tk[10]));
- ppk[0] += RotR1(ppk[5] ^ Mk16(tk[13], tk[12]));
- ppk[1] += RotR1(ppk[0] ^ Mk16(tk[15], tk[14]));
- ppk[2] += RotR1(ppk[1]);
- ppk[3] += RotR1(ppk[2]);
- ppk[4] += RotR1(ppk[3]);
- ppk[5] += RotR1(ppk[4]);
-
- rc4key[0] = Hi8(tsc_IV16);
- rc4key[1] = (Hi8(tsc_IV16) | 0x20) & 0x7f;
- rc4key[2] = Lo8(tsc_IV16);
- rc4key[3] = Lo8((ppk[5] ^ Mk16(tk[1], tk[0])) >> 1);
-
- for (i = 0; i < 6; i++) {
- rc4key[4 + 2 * i] = Lo8(ppk[i]);
- rc4key[5 + 2 * i] = Hi8(ppk[i]);
- }
-}
-
-
-/* Add TKIP IV and Ext. IV at @pos. @iv0, @iv1, and @iv2 are the first octets
- * of the IV. Returns pointer to the octet following IVs (i.e., beginning of
- * the packet payload). */
-u8 * ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key,
- u8 iv0, u8 iv1, u8 iv2)
-{
- *pos++ = iv0;
- *pos++ = iv1;
- *pos++ = iv2;
- *pos++ = (key->conf.keyidx << 6) | (1 << 5) /* Ext IV */;
- *pos++ = key->u.tkip.iv32 & 0xff;
- *pos++ = (key->u.tkip.iv32 >> 8) & 0xff;
- *pos++ = (key->u.tkip.iv32 >> 16) & 0xff;
- *pos++ = (key->u.tkip.iv32 >> 24) & 0xff;
- return pos;
-}
-
-
-void ieee80211_tkip_gen_phase1key(struct ieee80211_key *key, u8 *ta,
- u16 *phase1key)
-{
- tkip_mixing_phase1(ta, &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
- key->u.tkip.iv32, phase1key);
-}
-
-void ieee80211_tkip_gen_rc4key(struct ieee80211_key *key, u8 *ta,
- u8 *rc4key)
-{
- /* Calculate per-packet key */
- if (key->u.tkip.iv16 == 0 || !key->u.tkip.tx_initialized) {
- /* IV16 wrapped around - perform TKIP phase 1 */
- tkip_mixing_phase1(ta, &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
- key->u.tkip.iv32, key->u.tkip.p1k);
- key->u.tkip.tx_initialized = 1;
- }
-
- tkip_mixing_phase2(key->u.tkip.p1k,
- &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
- key->u.tkip.iv16, rc4key);
-}
-
-/* Encrypt packet payload with TKIP using @key. @pos is a pointer to the
- * beginning of the buffer containing payload. This payload must include
- * headroom of eight octets for IV and Ext. IV and taildroom of four octets
- * for ICV. @payload_len is the length of payload (_not_ including extra
- * headroom and tailroom). @ta is the transmitter addresses. */
-void ieee80211_tkip_encrypt_data(struct crypto_blkcipher *tfm,
- struct ieee80211_key *key,
- u8 *pos, size_t payload_len, u8 *ta)
-{
- u8 rc4key[16];
-
- ieee80211_tkip_gen_rc4key(key, ta, rc4key);
- pos = ieee80211_tkip_add_iv(pos, key, rc4key[0], rc4key[1], rc4key[2]);
- ieee80211_wep_encrypt_data(tfm, rc4key, 16, pos, payload_len);
-}
-
-
-/* Decrypt packet payload with TKIP using @key. @pos is a pointer to the
- * beginning of the buffer containing IEEE 802.11 header payload, i.e.,
- * including IV, Ext. IV, real data, Michael MIC, ICV. @payload_len is the
- * length of payload, including IV, Ext. IV, MIC, ICV. */
-int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
- struct ieee80211_key *key,
- u8 *payload, size_t payload_len, u8 *ta,
- int only_iv, int queue,
- u32 *out_iv32, u16 *out_iv16)
-{
- u32 iv32;
- u32 iv16;
- u8 rc4key[16], keyid, *pos = payload;
- int res;
-
- if (payload_len < 12)
- return -1;
-
- iv16 = (pos[0] << 8) | pos[2];
- keyid = pos[3];
- iv32 = pos[4] | (pos[5] << 8) | (pos[6] << 16) | (pos[7] << 24);
- pos += 8;
-#ifdef CONFIG_TKIP_DEBUG
- {
- int i;
- printk(KERN_DEBUG "TKIP decrypt: data(len=%zd)", payload_len);
- for (i = 0; i < payload_len; i++)
- printk(" %02x", payload[i]);
- printk("\n");
- printk(KERN_DEBUG "TKIP decrypt: iv16=%04x iv32=%08x\n",
- iv16, iv32);
- }
-#endif /* CONFIG_TKIP_DEBUG */
-
- if (!(keyid & (1 << 5)))
- return TKIP_DECRYPT_NO_EXT_IV;
-
- if ((keyid >> 6) != key->conf.keyidx)
- return TKIP_DECRYPT_INVALID_KEYIDX;
-
- if (key->u.tkip.rx_initialized[queue] &&
- (iv32 < key->u.tkip.iv32_rx[queue] ||
- (iv32 == key->u.tkip.iv32_rx[queue] &&
- iv16 <= key->u.tkip.iv16_rx[queue]))) {
-#ifdef CONFIG_TKIP_DEBUG
- DECLARE_MAC_BUF(mac);
- printk(KERN_DEBUG "TKIP replay detected for RX frame from "
- "%s (RX IV (%04x,%02x) <= prev. IV (%04x,%02x)\n",
- print_mac(mac, ta),
- iv32, iv16, key->u.tkip.iv32_rx[queue],
- key->u.tkip.iv16_rx[queue]);
-#endif /* CONFIG_TKIP_DEBUG */
- return TKIP_DECRYPT_REPLAY;
- }
-
- if (only_iv) {
- res = TKIP_DECRYPT_OK;
- key->u.tkip.rx_initialized[queue] = 1;
- goto done;
- }
-
- if (!key->u.tkip.rx_initialized[queue] ||
- key->u.tkip.iv32_rx[queue] != iv32) {
- key->u.tkip.rx_initialized[queue] = 1;
- /* IV16 wrapped around - perform TKIP phase 1 */
- tkip_mixing_phase1(ta, &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
- iv32, key->u.tkip.p1k_rx[queue]);
-#ifdef CONFIG_TKIP_DEBUG
- {
- int i;
- DECLARE_MAC_BUF(mac);
- printk(KERN_DEBUG "TKIP decrypt: Phase1 TA=%s"
- " TK=", print_mac(mac, ta));
- for (i = 0; i < 16; i++)
- printk("%02x ",
- key->conf.key[
- ALG_TKIP_TEMP_ENCR_KEY + i]);
- printk("\n");
- printk(KERN_DEBUG "TKIP decrypt: P1K=");
- for (i = 0; i < 5; i++)
- printk("%04x ", key->u.tkip.p1k_rx[queue][i]);
- printk("\n");
- }
-#endif /* CONFIG_TKIP_DEBUG */
- }
-
- tkip_mixing_phase2(key->u.tkip.p1k_rx[queue],
- &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY],
- iv16, rc4key);
-#ifdef CONFIG_TKIP_DEBUG
- {
- int i;
- printk(KERN_DEBUG "TKIP decrypt: Phase2 rc4key=");
- for (i = 0; i < 16; i++)
- printk("%02x ", rc4key[i]);
- printk("\n");
- }
-#endif /* CONFIG_TKIP_DEBUG */
-
- res = ieee80211_wep_decrypt_data(tfm, rc4key, 16, pos, payload_len - 12);
- done:
- if (res == TKIP_DECRYPT_OK) {
- /*
- * Record previously received IV, will be copied into the
- * key information after MIC verification. It is possible
- * that we don't catch replays of fragments but that's ok
- * because the Michael MIC verication will then fail.
- */
- *out_iv32 = iv32;
- *out_iv16 = iv16;
- }
-
- return res;
-}
-
-
+++ /dev/null
-/*
- * Copyright 2002-2004, Instant802 Networks, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef TKIP_H
-#define TKIP_H
-
-#include <linux/types.h>
-#include <linux/crypto.h>
-#include "ieee80211_key.h"
-
-u8 * ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key,
- u8 iv0, u8 iv1, u8 iv2);
-void ieee80211_tkip_gen_phase1key(struct ieee80211_key *key, u8 *ta,
- u16 *phase1key);
-void ieee80211_tkip_gen_rc4key(struct ieee80211_key *key, u8 *ta,
- u8 *rc4key);
-void ieee80211_tkip_encrypt_data(struct crypto_blkcipher *tfm,
- struct ieee80211_key *key,
- u8 *pos, size_t payload_len, u8 *ta);
-enum {
- TKIP_DECRYPT_OK = 0,
- TKIP_DECRYPT_NO_EXT_IV = -1,
- TKIP_DECRYPT_INVALID_KEYIDX = -2,
- TKIP_DECRYPT_REPLAY = -3,
-};
-int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
- struct ieee80211_key *key,
- u8 *payload, size_t payload_len, u8 *ta,
- int only_iv, int queue,
- u32 *out_iv32, u16 *out_iv16);
-
-#endif /* TKIP_H */
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005-2006, Devicescape Software, Inc.
- * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- *
- * Transmit and frame generation functions.
- */
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-#include <linux/etherdevice.h>
-#include <linux/bitmap.h>
-#include <linux/rcupdate.h>
-#include <net/net_namespace.h>
-#include <net/ieee80211_radiotap.h>
-#include <net/cfg80211.h>
-#include <net/mac80211.h>
-#include <asm/unaligned.h>
-
-#include "ieee80211_i.h"
-#include "ieee80211_led.h"
-#include "wep.h"
-#include "wpa.h"
-#include "wme.h"
-#include "ieee80211_rate.h"
-
-#define IEEE80211_TX_OK 0
-#define IEEE80211_TX_AGAIN 1
-#define IEEE80211_TX_FRAG_AGAIN 2
-
-/* misc utils */
-
-static inline void ieee80211_include_sequence(struct ieee80211_sub_if_data *sdata,
- struct ieee80211_hdr *hdr)
-{
- /* Set the sequence number for this frame. */
- hdr->seq_ctrl = cpu_to_le16(sdata->sequence);
-
- /* Increase the sequence number. */
- sdata->sequence = (sdata->sequence + 0x10) & IEEE80211_SCTL_SEQ;
-}
-
-#ifdef CONFIG_MAC80211_LOWTX_FRAME_DUMP
-static void ieee80211_dump_frame(const char *ifname, const char *title,
- const struct sk_buff *skb)
-{
- const struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u16 fc;
- int hdrlen;
- DECLARE_MAC_BUF(mac);
-
- printk(KERN_DEBUG "%s: %s (len=%d)", ifname, title, skb->len);
- if (skb->len < 4) {
- printk("\n");
- return;
- }
-
- fc = le16_to_cpu(hdr->frame_control);
- hdrlen = ieee80211_get_hdrlen(fc);
- if (hdrlen > skb->len)
- hdrlen = skb->len;
- if (hdrlen >= 4)
- printk(" FC=0x%04x DUR=0x%04x",
- fc, le16_to_cpu(hdr->duration_id));
- if (hdrlen >= 10)
- printk(" A1=%s", print_mac(mac, hdr->addr1));
- if (hdrlen >= 16)
- printk(" A2=%s", print_mac(mac, hdr->addr2));
- if (hdrlen >= 24)
- printk(" A3=%s", print_mac(mac, hdr->addr3));
- if (hdrlen >= 30)
- printk(" A4=%s", print_mac(mac, hdr->addr4));
- printk("\n");
-}
-#else /* CONFIG_MAC80211_LOWTX_FRAME_DUMP */
-static inline void ieee80211_dump_frame(const char *ifname, const char *title,
- struct sk_buff *skb)
-{
-}
-#endif /* CONFIG_MAC80211_LOWTX_FRAME_DUMP */
-
-static u16 ieee80211_duration(struct ieee80211_txrx_data *tx, int group_addr,
- int next_frag_len)
-{
- int rate, mrate, erp, dur, i;
- struct ieee80211_rate *txrate = tx->u.tx.rate;
- struct ieee80211_local *local = tx->local;
- struct ieee80211_supported_band *sband;
-
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
- erp = 0;
- if (tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
- erp = txrate->flags & IEEE80211_RATE_ERP_G;
-
- /*
- * data and mgmt (except PS Poll):
- * - during CFP: 32768
- * - during contention period:
- * if addr1 is group address: 0
- * if more fragments = 0 and addr1 is individual address: time to
- * transmit one ACK plus SIFS
- * if more fragments = 1 and addr1 is individual address: time to
- * transmit next fragment plus 2 x ACK plus 3 x SIFS
- *
- * IEEE 802.11, 9.6:
- * - control response frame (CTS or ACK) shall be transmitted using the
- * same rate as the immediately previous frame in the frame exchange
- * sequence, if this rate belongs to the PHY mandatory rates, or else
- * at the highest possible rate belonging to the PHY rates in the
- * BSSBasicRateSet
- */
-
- if ((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) {
- /* TODO: These control frames are not currently sent by
- * 80211.o, but should they be implemented, this function
- * needs to be updated to support duration field calculation.
- *
- * RTS: time needed to transmit pending data/mgmt frame plus
- * one CTS frame plus one ACK frame plus 3 x SIFS
- * CTS: duration of immediately previous RTS minus time
- * required to transmit CTS and its SIFS
- * ACK: 0 if immediately previous directed data/mgmt had
- * more=0, with more=1 duration in ACK frame is duration
- * from previous frame minus time needed to transmit ACK
- * and its SIFS
- * PS Poll: BIT(15) | BIT(14) | aid
- */
- return 0;
- }
-
- /* data/mgmt */
- if (0 /* FIX: data/mgmt during CFP */)
- return 32768;
-
- if (group_addr) /* Group address as the destination - no ACK */
- return 0;
-
- /* Individual destination address:
- * IEEE 802.11, Ch. 9.6 (after IEEE 802.11g changes)
- * CTS and ACK frames shall be transmitted using the highest rate in
- * basic rate set that is less than or equal to the rate of the
- * immediately previous frame and that is using the same modulation
- * (CCK or OFDM). If no basic rate set matches with these requirements,
- * the highest mandatory rate of the PHY that is less than or equal to
- * the rate of the previous frame is used.
- * Mandatory rates for IEEE 802.11g PHY: 1, 2, 5.5, 11, 6, 12, 24 Mbps
- */
- rate = -1;
- /* use lowest available if everything fails */
- mrate = sband->bitrates[0].bitrate;
- for (i = 0; i < sband->n_bitrates; i++) {
- struct ieee80211_rate *r = &sband->bitrates[i];
-
- if (r->bitrate > txrate->bitrate)
- break;
-
- if (tx->sdata->basic_rates & BIT(i))
- rate = r->bitrate;
-
- switch (sband->band) {
- case IEEE80211_BAND_2GHZ: {
- u32 flag;
- if (tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
- flag = IEEE80211_RATE_MANDATORY_G;
- else
- flag = IEEE80211_RATE_MANDATORY_B;
- if (r->flags & flag)
- mrate = r->bitrate;
- break;
- }
- case IEEE80211_BAND_5GHZ:
- if (r->flags & IEEE80211_RATE_MANDATORY_A)
- mrate = r->bitrate;
- break;
- case IEEE80211_NUM_BANDS:
- WARN_ON(1);
- break;
- }
- }
- if (rate == -1) {
- /* No matching basic rate found; use highest suitable mandatory
- * PHY rate */
- rate = mrate;
- }
-
- /* Time needed to transmit ACK
- * (10 bytes + 4-byte FCS = 112 bits) plus SIFS; rounded up
- * to closest integer */
-
- dur = ieee80211_frame_duration(local, 10, rate, erp,
- tx->sdata->bss_conf.use_short_preamble);
-
- if (next_frag_len) {
- /* Frame is fragmented: duration increases with time needed to
- * transmit next fragment plus ACK and 2 x SIFS. */
- dur *= 2; /* ACK + SIFS */
- /* next fragment */
- dur += ieee80211_frame_duration(local, next_frag_len,
- txrate->bitrate, erp,
- tx->sdata->bss_conf.use_short_preamble);
- }
-
- return dur;
-}
-
-static inline int __ieee80211_queue_stopped(const struct ieee80211_local *local,
- int queue)
-{
- return test_bit(IEEE80211_LINK_STATE_XOFF, &local->state[queue]);
-}
-
-static inline int __ieee80211_queue_pending(const struct ieee80211_local *local,
- int queue)
-{
- return test_bit(IEEE80211_LINK_STATE_PENDING, &local->state[queue]);
-}
-
-static int inline is_ieee80211_device(struct net_device *dev,
- struct net_device *master)
-{
- return (wdev_priv(dev->ieee80211_ptr) ==
- wdev_priv(master->ieee80211_ptr));
-}
-
-/* tx handlers */
-
-static ieee80211_tx_result
-ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx)
-{
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- struct sk_buff *skb = tx->skb;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- u32 sta_flags;
-
- if (unlikely(tx->flags & IEEE80211_TXRXD_TX_INJECTED))
- return TX_CONTINUE;
-
- if (unlikely(tx->local->sta_sw_scanning) &&
- ((tx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
- (tx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PROBE_REQ))
- return TX_DROP;
-
- if (tx->flags & IEEE80211_TXRXD_TXPS_BUFFERED)
- return TX_CONTINUE;
-
- sta_flags = tx->sta ? tx->sta->flags : 0;
-
- if (likely(tx->flags & IEEE80211_TXRXD_TXUNICAST)) {
- if (unlikely(!(sta_flags & WLAN_STA_ASSOC) &&
- tx->sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
- (tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- DECLARE_MAC_BUF(mac);
- printk(KERN_DEBUG "%s: dropped data frame to not "
- "associated station %s\n",
- tx->dev->name, print_mac(mac, hdr->addr1));
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- I802_DEBUG_INC(tx->local->tx_handlers_drop_not_assoc);
- return TX_DROP;
- }
- } else {
- if (unlikely((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
- tx->local->num_sta == 0 &&
- tx->sdata->vif.type != IEEE80211_IF_TYPE_IBSS)) {
- /*
- * No associated STAs - no need to send multicast
- * frames.
- */
- return TX_DROP;
- }
- return TX_CONTINUE;
- }
-
- return TX_CONTINUE;
-}
-
-static ieee80211_tx_result
-ieee80211_tx_h_sequence(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
-
- if (ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control)) >= 24)
- ieee80211_include_sequence(tx->sdata, hdr);
-
- return TX_CONTINUE;
-}
-
-/* This function is called whenever the AP is about to exceed the maximum limit
- * of buffered frames for power saving STAs. This situation should not really
- * happen often during normal operation, so dropping the oldest buffered packet
- * from each queue should be OK to make some room for new frames. */
-static void purge_old_ps_buffers(struct ieee80211_local *local)
-{
- int total = 0, purged = 0;
- struct sk_buff *skb;
- struct ieee80211_sub_if_data *sdata;
- struct sta_info *sta;
-
- /*
- * virtual interfaces are protected by RCU
- */
- rcu_read_lock();
-
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
- struct ieee80211_if_ap *ap;
- if (sdata->dev == local->mdev ||
- sdata->vif.type != IEEE80211_IF_TYPE_AP)
- continue;
- ap = &sdata->u.ap;
- skb = skb_dequeue(&ap->ps_bc_buf);
- if (skb) {
- purged++;
- dev_kfree_skb(skb);
- }
- total += skb_queue_len(&ap->ps_bc_buf);
- }
- rcu_read_unlock();
-
- read_lock_bh(&local->sta_lock);
- list_for_each_entry(sta, &local->sta_list, list) {
- skb = skb_dequeue(&sta->ps_tx_buf);
- if (skb) {
- purged++;
- dev_kfree_skb(skb);
- }
- total += skb_queue_len(&sta->ps_tx_buf);
- }
- read_unlock_bh(&local->sta_lock);
-
- local->total_ps_buffered = total;
- printk(KERN_DEBUG "%s: PS buffers full - purged %d frames\n",
- wiphy_name(local->hw.wiphy), purged);
-}
-
-static ieee80211_tx_result
-ieee80211_tx_h_multicast_ps_buf(struct ieee80211_txrx_data *tx)
-{
- /*
- * broadcast/multicast frame
- *
- * If any of the associated stations is in power save mode,
- * the frame is buffered to be sent after DTIM beacon frame.
- * This is done either by the hardware or us.
- */
-
- /* not AP/IBSS or ordered frame */
- if (!tx->sdata->bss || (tx->fc & IEEE80211_FCTL_ORDER))
- return TX_CONTINUE;
-
- /* no stations in PS mode */
- if (!atomic_read(&tx->sdata->bss->num_sta_ps))
- return TX_CONTINUE;
-
- /* buffered in mac80211 */
- if (tx->local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING) {
- if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)
- purge_old_ps_buffers(tx->local);
- if (skb_queue_len(&tx->sdata->bss->ps_bc_buf) >=
- AP_MAX_BC_BUFFER) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: BC TX buffer full - "
- "dropping the oldest frame\n",
- tx->dev->name);
- }
- dev_kfree_skb(skb_dequeue(&tx->sdata->bss->ps_bc_buf));
- } else
- tx->local->total_ps_buffered++;
- skb_queue_tail(&tx->sdata->bss->ps_bc_buf, tx->skb);
- return TX_QUEUED;
- }
-
- /* buffered in hardware */
- tx->u.tx.control->flags |= IEEE80211_TXCTL_SEND_AFTER_DTIM;
-
- return TX_CONTINUE;
-}
-
-static ieee80211_tx_result
-ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx)
-{
- struct sta_info *sta = tx->sta;
- DECLARE_MAC_BUF(mac);
-
- if (unlikely(!sta ||
- ((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT &&
- (tx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP)))
- return TX_CONTINUE;
-
- if (unlikely((sta->flags & WLAN_STA_PS) && !sta->pspoll)) {
- struct ieee80211_tx_packet_data *pkt_data;
-#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "STA %s aid %d: PS buffer (entries "
- "before %d)\n",
- print_mac(mac, sta->addr), sta->aid,
- skb_queue_len(&sta->ps_tx_buf));
-#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
- sta->flags |= WLAN_STA_TIM;
- if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)
- purge_old_ps_buffers(tx->local);
- if (skb_queue_len(&sta->ps_tx_buf) >= STA_MAX_TX_BUFFER) {
- struct sk_buff *old = skb_dequeue(&sta->ps_tx_buf);
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: STA %s TX "
- "buffer full - dropping oldest frame\n",
- tx->dev->name, print_mac(mac, sta->addr));
- }
- dev_kfree_skb(old);
- } else
- tx->local->total_ps_buffered++;
- /* Queue frame to be sent after STA sends an PS Poll frame */
- if (skb_queue_empty(&sta->ps_tx_buf)) {
- if (tx->local->ops->set_tim)
- tx->local->ops->set_tim(local_to_hw(tx->local),
- sta->aid, 1);
- if (tx->sdata->bss)
- bss_tim_set(tx->local, tx->sdata->bss, sta->aid);
- }
- pkt_data = (struct ieee80211_tx_packet_data *)tx->skb->cb;
- pkt_data->jiffies = jiffies;
- skb_queue_tail(&sta->ps_tx_buf, tx->skb);
- return TX_QUEUED;
- }
-#ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
- else if (unlikely(sta->flags & WLAN_STA_PS)) {
- printk(KERN_DEBUG "%s: STA %s in PS mode, but pspoll "
- "set -> send frame\n", tx->dev->name,
- print_mac(mac, sta->addr));
- }
-#endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
- sta->pspoll = 0;
-
- return TX_CONTINUE;
-}
-
-static ieee80211_tx_result
-ieee80211_tx_h_ps_buf(struct ieee80211_txrx_data *tx)
-{
- if (unlikely(tx->flags & IEEE80211_TXRXD_TXPS_BUFFERED))
- return TX_CONTINUE;
-
- if (tx->flags & IEEE80211_TXRXD_TXUNICAST)
- return ieee80211_tx_h_unicast_ps_buf(tx);
- else
- return ieee80211_tx_h_multicast_ps_buf(tx);
-}
-
-static ieee80211_tx_result
-ieee80211_tx_h_select_key(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_key *key;
- u16 fc = tx->fc;
-
- if (unlikely(tx->u.tx.control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT))
- tx->key = NULL;
- else if (tx->sta && (key = rcu_dereference(tx->sta->key)))
- tx->key = key;
- else if ((key = rcu_dereference(tx->sdata->default_key)))
- tx->key = key;
- else if (tx->sdata->drop_unencrypted &&
- !(tx->u.tx.control->flags & IEEE80211_TXCTL_EAPOL_FRAME) &&
- !(tx->flags & IEEE80211_TXRXD_TX_INJECTED)) {
- I802_DEBUG_INC(tx->local->tx_handlers_drop_unencrypted);
- return TX_DROP;
- } else
- tx->key = NULL;
-
- if (tx->key) {
- u16 ftype, stype;
-
- tx->key->tx_rx_count++;
- /* TODO: add threshold stuff again */
-
- switch (tx->key->conf.alg) {
- case ALG_WEP:
- ftype = fc & IEEE80211_FCTL_FTYPE;
- stype = fc & IEEE80211_FCTL_STYPE;
-
- if (ftype == IEEE80211_FTYPE_MGMT &&
- stype == IEEE80211_STYPE_AUTH)
- break;
- case ALG_TKIP:
- case ALG_CCMP:
- if (!WLAN_FC_DATA_PRESENT(fc))
- tx->key = NULL;
- break;
- }
- }
-
- if (!tx->key || !(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
- tx->u.tx.control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
-
- return TX_CONTINUE;
-}
-
-static ieee80211_tx_result
-ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
- size_t hdrlen, per_fragm, num_fragm, payload_len, left;
- struct sk_buff **frags, *first, *frag;
- int i;
- u16 seq;
- u8 *pos;
- int frag_threshold = tx->local->fragmentation_threshold;
-
- if (!(tx->flags & IEEE80211_TXRXD_FRAGMENTED))
- return TX_CONTINUE;
-
- first = tx->skb;
-
- hdrlen = ieee80211_get_hdrlen(tx->fc);
- payload_len = first->len - hdrlen;
- per_fragm = frag_threshold - hdrlen - FCS_LEN;
- num_fragm = DIV_ROUND_UP(payload_len, per_fragm);
-
- frags = kzalloc(num_fragm * sizeof(struct sk_buff *), GFP_ATOMIC);
- if (!frags)
- goto fail;
-
- hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_MOREFRAGS);
- seq = le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_SEQ;
- pos = first->data + hdrlen + per_fragm;
- left = payload_len - per_fragm;
- for (i = 0; i < num_fragm - 1; i++) {
- struct ieee80211_hdr *fhdr;
- size_t copylen;
-
- if (left <= 0)
- goto fail;
-
- /* reserve enough extra head and tail room for possible
- * encryption */
- frag = frags[i] =
- dev_alloc_skb(tx->local->tx_headroom +
- frag_threshold +
- IEEE80211_ENCRYPT_HEADROOM +
- IEEE80211_ENCRYPT_TAILROOM);
- if (!frag)
- goto fail;
- /* Make sure that all fragments use the same priority so
- * that they end up using the same TX queue */
- frag->priority = first->priority;
- skb_reserve(frag, tx->local->tx_headroom +
- IEEE80211_ENCRYPT_HEADROOM);
- fhdr = (struct ieee80211_hdr *) skb_put(frag, hdrlen);
- memcpy(fhdr, first->data, hdrlen);
- if (i == num_fragm - 2)
- fhdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_MOREFRAGS);
- fhdr->seq_ctrl = cpu_to_le16(seq | ((i + 1) & IEEE80211_SCTL_FRAG));
- copylen = left > per_fragm ? per_fragm : left;
- memcpy(skb_put(frag, copylen), pos, copylen);
-
- pos += copylen;
- left -= copylen;
- }
- skb_trim(first, hdrlen + per_fragm);
-
- tx->u.tx.num_extra_frag = num_fragm - 1;
- tx->u.tx.extra_frag = frags;
-
- return TX_CONTINUE;
-
- fail:
- printk(KERN_DEBUG "%s: failed to fragment frame\n", tx->dev->name);
- if (frags) {
- for (i = 0; i < num_fragm - 1; i++)
- if (frags[i])
- dev_kfree_skb(frags[i]);
- kfree(frags);
- }
- I802_DEBUG_INC(tx->local->tx_handlers_drop_fragment);
- return TX_DROP;
-}
-
-static ieee80211_tx_result
-ieee80211_tx_h_encrypt(struct ieee80211_txrx_data *tx)
-{
- if (!tx->key)
- return TX_CONTINUE;
-
- switch (tx->key->conf.alg) {
- case ALG_WEP:
- return ieee80211_crypto_wep_encrypt(tx);
- case ALG_TKIP:
- return ieee80211_crypto_tkip_encrypt(tx);
- case ALG_CCMP:
- return ieee80211_crypto_ccmp_encrypt(tx);
- }
-
- /* not reached */
- WARN_ON(1);
- return TX_DROP;
-}
-
-static ieee80211_tx_result
-ieee80211_tx_h_rate_ctrl(struct ieee80211_txrx_data *tx)
-{
- struct rate_selection rsel;
- struct ieee80211_supported_band *sband;
-
- sband = tx->local->hw.wiphy->bands[tx->local->hw.conf.channel->band];
-
- if (likely(!tx->u.tx.rate)) {
- rate_control_get_rate(tx->dev, sband, tx->skb, &rsel);
- tx->u.tx.rate = rsel.rate;
- if (unlikely(rsel.probe)) {
- tx->u.tx.control->flags |=
- IEEE80211_TXCTL_RATE_CTRL_PROBE;
- tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
- tx->u.tx.control->alt_retry_rate = tx->u.tx.rate;
- tx->u.tx.rate = rsel.probe;
- } else
- tx->u.tx.control->alt_retry_rate = NULL;
-
- if (!tx->u.tx.rate)
- return TX_DROP;
- } else
- tx->u.tx.control->alt_retry_rate = NULL;
-
- if (tx->sdata->bss_conf.use_cts_prot &&
- (tx->flags & IEEE80211_TXRXD_FRAGMENTED) && rsel.nonerp) {
- tx->u.tx.last_frag_rate = tx->u.tx.rate;
- if (rsel.probe)
- tx->flags &= ~IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
- else
- tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
- tx->u.tx.rate = rsel.nonerp;
- tx->u.tx.control->tx_rate = rsel.nonerp;
- tx->u.tx.control->flags &= ~IEEE80211_TXCTL_RATE_CTRL_PROBE;
- } else {
- tx->u.tx.last_frag_rate = tx->u.tx.rate;
- tx->u.tx.control->tx_rate = tx->u.tx.rate;
- }
- tx->u.tx.control->tx_rate = tx->u.tx.rate;
-
- return TX_CONTINUE;
-}
-
-static ieee80211_tx_result
-ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
- u16 fc = le16_to_cpu(hdr->frame_control);
- u16 dur;
- struct ieee80211_tx_control *control = tx->u.tx.control;
-
- if (!control->retry_limit) {
- if (!is_multicast_ether_addr(hdr->addr1)) {
- if (tx->skb->len + FCS_LEN > tx->local->rts_threshold
- && tx->local->rts_threshold <
- IEEE80211_MAX_RTS_THRESHOLD) {
- control->flags |=
- IEEE80211_TXCTL_USE_RTS_CTS;
- control->flags |=
- IEEE80211_TXCTL_LONG_RETRY_LIMIT;
- control->retry_limit =
- tx->local->long_retry_limit;
- } else {
- control->retry_limit =
- tx->local->short_retry_limit;
- }
- } else {
- control->retry_limit = 1;
- }
- }
-
- if (tx->flags & IEEE80211_TXRXD_FRAGMENTED) {
- /* Do not use multiple retry rates when sending fragmented
- * frames.
- * TODO: The last fragment could still use multiple retry
- * rates. */
- control->alt_retry_rate = NULL;
- }
-
- /* Use CTS protection for unicast frames sent using extended rates if
- * there are associated non-ERP stations and RTS/CTS is not configured
- * for the frame. */
- if ((tx->sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) &&
- (tx->u.tx.rate->flags & IEEE80211_RATE_ERP_G) &&
- (tx->flags & IEEE80211_TXRXD_TXUNICAST) &&
- tx->sdata->bss_conf.use_cts_prot &&
- !(control->flags & IEEE80211_TXCTL_USE_RTS_CTS))
- control->flags |= IEEE80211_TXCTL_USE_CTS_PROTECT;
-
- /* Transmit data frames using short preambles if the driver supports
- * short preambles at the selected rate and short preambles are
- * available on the network at the current point in time. */
- if (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) &&
- (tx->u.tx.rate->flags & IEEE80211_RATE_SHORT_PREAMBLE) &&
- tx->sdata->bss_conf.use_short_preamble &&
- (!tx->sta || (tx->sta->flags & WLAN_STA_SHORT_PREAMBLE))) {
- tx->u.tx.control->flags |= IEEE80211_TXCTL_SHORT_PREAMBLE;
- }
-
- /* Setup duration field for the first fragment of the frame. Duration
- * for remaining fragments will be updated when they are being sent
- * to low-level driver in ieee80211_tx(). */
- dur = ieee80211_duration(tx, is_multicast_ether_addr(hdr->addr1),
- (tx->flags & IEEE80211_TXRXD_FRAGMENTED) ?
- tx->u.tx.extra_frag[0]->len : 0);
- hdr->duration_id = cpu_to_le16(dur);
-
- if ((control->flags & IEEE80211_TXCTL_USE_RTS_CTS) ||
- (control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)) {
- struct ieee80211_supported_band *sband;
- struct ieee80211_rate *rate, *baserate;
- int idx;
-
- sband = tx->local->hw.wiphy->bands[
- tx->local->hw.conf.channel->band];
-
- /* Do not use multiple retry rates when using RTS/CTS */
- control->alt_retry_rate = NULL;
-
- /* Use min(data rate, max base rate) as CTS/RTS rate */
- rate = tx->u.tx.rate;
- baserate = NULL;
-
- for (idx = 0; idx < sband->n_bitrates; idx++) {
- if (sband->bitrates[idx].bitrate > rate->bitrate)
- continue;
- if (tx->sdata->basic_rates & BIT(idx) &&
- (!baserate ||
- (baserate->bitrate < sband->bitrates[idx].bitrate)))
- baserate = &sband->bitrates[idx];
- }
-
- if (baserate)
- control->rts_cts_rate = baserate;
- else
- control->rts_cts_rate = &sband->bitrates[0];
- }
-
- if (tx->sta) {
- tx->sta->tx_packets++;
- tx->sta->tx_fragments++;
- tx->sta->tx_bytes += tx->skb->len;
- if (tx->u.tx.extra_frag) {
- int i;
- tx->sta->tx_fragments += tx->u.tx.num_extra_frag;
- for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
- tx->sta->tx_bytes +=
- tx->u.tx.extra_frag[i]->len;
- }
- }
- }
-
- return TX_CONTINUE;
-}
-
-static ieee80211_tx_result
-ieee80211_tx_h_load_stats(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_local *local = tx->local;
- struct sk_buff *skb = tx->skb;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u32 load = 0, hdrtime;
- struct ieee80211_rate *rate = tx->u.tx.rate;
-
- /* TODO: this could be part of tx_status handling, so that the number
- * of retries would be known; TX rate should in that case be stored
- * somewhere with the packet */
-
- /* Estimate total channel use caused by this frame */
-
- /* 1 bit at 1 Mbit/s takes 1 usec; in channel_use values,
- * 1 usec = 1/8 * (1080 / 10) = 13.5 */
-
- if (tx->u.tx.channel->band == IEEE80211_BAND_5GHZ ||
- (tx->u.tx.channel->band == IEEE80211_BAND_2GHZ &&
- rate->flags & IEEE80211_RATE_ERP_G))
- hdrtime = CHAN_UTIL_HDR_SHORT;
- else
- hdrtime = CHAN_UTIL_HDR_LONG;
-
- load = hdrtime;
- if (!is_multicast_ether_addr(hdr->addr1))
- load += hdrtime;
-
- if (tx->u.tx.control->flags & IEEE80211_TXCTL_USE_RTS_CTS)
- load += 2 * hdrtime;
- else if (tx->u.tx.control->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)
- load += hdrtime;
-
- /* TODO: optimise again */
- load += skb->len * CHAN_UTIL_RATE_LCM / rate->bitrate;
-
- if (tx->u.tx.extra_frag) {
- int i;
- for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
- load += 2 * hdrtime;
- load += tx->u.tx.extra_frag[i]->len *
- tx->u.tx.rate->bitrate;
- }
- }
-
- /* Divide channel_use by 8 to avoid wrapping around the counter */
- load >>= CHAN_UTIL_SHIFT;
- local->channel_use_raw += load;
- if (tx->sta)
- tx->sta->channel_use_raw += load;
- tx->sdata->channel_use_raw += load;
-
- return TX_CONTINUE;
-}
-
-
-typedef ieee80211_tx_result (*ieee80211_tx_handler)(struct ieee80211_txrx_data *);
-static ieee80211_tx_handler ieee80211_tx_handlers[] =
-{
- ieee80211_tx_h_check_assoc,
- ieee80211_tx_h_sequence,
- ieee80211_tx_h_ps_buf,
- ieee80211_tx_h_select_key,
- ieee80211_tx_h_michael_mic_add,
- ieee80211_tx_h_fragment,
- ieee80211_tx_h_encrypt,
- ieee80211_tx_h_rate_ctrl,
- ieee80211_tx_h_misc,
- ieee80211_tx_h_load_stats,
- NULL
-};
-
-/* actual transmit path */
-
-/*
- * deal with packet injection down monitor interface
- * with Radiotap Header -- only called for monitor mode interface
- */
-static ieee80211_tx_result
-__ieee80211_parse_tx_radiotap(struct ieee80211_txrx_data *tx,
- struct sk_buff *skb)
-{
- /*
- * this is the moment to interpret and discard the radiotap header that
- * must be at the start of the packet injected in Monitor mode
- *
- * Need to take some care with endian-ness since radiotap
- * args are little-endian
- */
-
- struct ieee80211_radiotap_iterator iterator;
- struct ieee80211_radiotap_header *rthdr =
- (struct ieee80211_radiotap_header *) skb->data;
- struct ieee80211_supported_band *sband;
- int ret = ieee80211_radiotap_iterator_init(&iterator, rthdr, skb->len);
- struct ieee80211_tx_control *control = tx->u.tx.control;
-
- sband = tx->local->hw.wiphy->bands[tx->local->hw.conf.channel->band];
-
- control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
- tx->flags |= IEEE80211_TXRXD_TX_INJECTED;
- tx->flags &= ~IEEE80211_TXRXD_FRAGMENTED;
-
- /*
- * for every radiotap entry that is present
- * (ieee80211_radiotap_iterator_next returns -ENOENT when no more
- * entries present, or -EINVAL on error)
- */
-
- while (!ret) {
- int i, target_rate;
-
- ret = ieee80211_radiotap_iterator_next(&iterator);
-
- if (ret)
- continue;
-
- /* see if this argument is something we can use */
- switch (iterator.this_arg_index) {
- /*
- * You must take care when dereferencing iterator.this_arg
- * for multibyte types... the pointer is not aligned. Use
- * get_unaligned((type *)iterator.this_arg) to dereference
- * iterator.this_arg for type "type" safely on all arches.
- */
- case IEEE80211_RADIOTAP_RATE:
- /*
- * radiotap rate u8 is in 500kbps units eg, 0x02=1Mbps
- * ieee80211 rate int is in 100kbps units eg, 0x0a=1Mbps
- */
- target_rate = (*iterator.this_arg) * 5;
- for (i = 0; i < sband->n_bitrates; i++) {
- struct ieee80211_rate *r;
-
- r = &sband->bitrates[i];
-
- if (r->bitrate == target_rate) {
- tx->u.tx.rate = r;
- break;
- }
- }
- break;
-
- case IEEE80211_RADIOTAP_ANTENNA:
- /*
- * radiotap uses 0 for 1st ant, mac80211 is 1 for
- * 1st ant
- */
- control->antenna_sel_tx = (*iterator.this_arg) + 1;
- break;
-
-#if 0
- case IEEE80211_RADIOTAP_DBM_TX_POWER:
- control->power_level = *iterator.this_arg;
- break;
-#endif
-
- case IEEE80211_RADIOTAP_FLAGS:
- if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FCS) {
- /*
- * this indicates that the skb we have been
- * handed has the 32-bit FCS CRC at the end...
- * we should react to that by snipping it off
- * because it will be recomputed and added
- * on transmission
- */
- if (skb->len < (iterator.max_length + FCS_LEN))
- return TX_DROP;
-
- skb_trim(skb, skb->len - FCS_LEN);
- }
- if (*iterator.this_arg & IEEE80211_RADIOTAP_F_WEP)
- control->flags &=
- ~IEEE80211_TXCTL_DO_NOT_ENCRYPT;
- if (*iterator.this_arg & IEEE80211_RADIOTAP_F_FRAG)
- tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
- break;
-
- /*
- * Please update the file
- * Documentation/networking/mac80211-injection.txt
- * when parsing new fields here.
- */
-
- default:
- break;
- }
- }
-
- if (ret != -ENOENT) /* ie, if we didn't simply run out of fields */
- return TX_DROP;
-
- /*
- * remove the radiotap header
- * iterator->max_length was sanity-checked against
- * skb->len by iterator init
- */
- skb_pull(skb, iterator.max_length);
-
- return TX_CONTINUE;
-}
-
-/*
- * initialises @tx
- */
-static ieee80211_tx_result
-__ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
- struct sk_buff *skb,
- struct net_device *dev,
- struct ieee80211_tx_control *control)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hdr *hdr;
- struct ieee80211_sub_if_data *sdata;
-
- int hdrlen;
-
- memset(tx, 0, sizeof(*tx));
- tx->skb = skb;
- tx->dev = dev; /* use original interface */
- tx->local = local;
- tx->sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- tx->u.tx.control = control;
- /*
- * Set this flag (used below to indicate "automatic fragmentation"),
- * it will be cleared/left by radiotap as desired.
- */
- tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
-
- /* process and remove the injection radiotap header */
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (unlikely(sdata->vif.type == IEEE80211_IF_TYPE_MNTR)) {
- if (__ieee80211_parse_tx_radiotap(tx, skb) == TX_DROP)
- return TX_DROP;
-
- /*
- * __ieee80211_parse_tx_radiotap has now removed
- * the radiotap header that was present and pre-filled
- * 'tx' with tx control information.
- */
- }
-
- hdr = (struct ieee80211_hdr *) skb->data;
-
- tx->sta = sta_info_get(local, hdr->addr1);
- tx->fc = le16_to_cpu(hdr->frame_control);
-
- if (is_multicast_ether_addr(hdr->addr1)) {
- tx->flags &= ~IEEE80211_TXRXD_TXUNICAST;
- control->flags |= IEEE80211_TXCTL_NO_ACK;
- } else {
- tx->flags |= IEEE80211_TXRXD_TXUNICAST;
- control->flags &= ~IEEE80211_TXCTL_NO_ACK;
- }
-
- if (tx->flags & IEEE80211_TXRXD_FRAGMENTED) {
- if ((tx->flags & IEEE80211_TXRXD_TXUNICAST) &&
- skb->len + FCS_LEN > local->fragmentation_threshold &&
- !local->ops->set_frag_threshold)
- tx->flags |= IEEE80211_TXRXD_FRAGMENTED;
- else
- tx->flags &= ~IEEE80211_TXRXD_FRAGMENTED;
- }
-
- if (!tx->sta)
- control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
- else if (tx->sta->clear_dst_mask) {
- control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
- tx->sta->clear_dst_mask = 0;
- }
-
- hdrlen = ieee80211_get_hdrlen(tx->fc);
- if (skb->len > hdrlen + sizeof(rfc1042_header) + 2) {
- u8 *pos = &skb->data[hdrlen + sizeof(rfc1042_header)];
- tx->ethertype = (pos[0] << 8) | pos[1];
- }
- control->flags |= IEEE80211_TXCTL_FIRST_FRAGMENT;
-
- return TX_CONTINUE;
-}
-
-/*
- * NB: @tx is uninitialised when passed in here
- */
-static int ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
- struct sk_buff *skb,
- struct net_device *mdev,
- struct ieee80211_tx_control *control)
-{
- struct ieee80211_tx_packet_data *pkt_data;
- struct net_device *dev;
-
- pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
- dev = dev_get_by_index(&init_net, pkt_data->ifindex);
- if (unlikely(dev && !is_ieee80211_device(dev, mdev))) {
- dev_put(dev);
- dev = NULL;
- }
- if (unlikely(!dev))
- return -ENODEV;
- /* initialises tx with control */
- __ieee80211_tx_prepare(tx, skb, dev, control);
- dev_put(dev);
- return 0;
-}
-
-static int __ieee80211_tx(struct ieee80211_local *local, struct sk_buff *skb,
- struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_tx_control *control = tx->u.tx.control;
- int ret, i;
-
- if (!ieee80211_qdisc_installed(local->mdev) &&
- __ieee80211_queue_stopped(local, 0)) {
- netif_stop_queue(local->mdev);
- return IEEE80211_TX_AGAIN;
- }
- if (skb) {
- ieee80211_dump_frame(wiphy_name(local->hw.wiphy),
- "TX to low-level driver", skb);
- ret = local->ops->tx(local_to_hw(local), skb, control);
- if (ret)
- return IEEE80211_TX_AGAIN;
- local->mdev->trans_start = jiffies;
- ieee80211_led_tx(local, 1);
- }
- if (tx->u.tx.extra_frag) {
- control->flags &= ~(IEEE80211_TXCTL_USE_RTS_CTS |
- IEEE80211_TXCTL_USE_CTS_PROTECT |
- IEEE80211_TXCTL_CLEAR_DST_MASK |
- IEEE80211_TXCTL_FIRST_FRAGMENT);
- for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
- if (!tx->u.tx.extra_frag[i])
- continue;
- if (__ieee80211_queue_stopped(local, control->queue))
- return IEEE80211_TX_FRAG_AGAIN;
- if (i == tx->u.tx.num_extra_frag) {
- control->tx_rate = tx->u.tx.last_frag_rate;
-
- if (tx->flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG)
- control->flags |=
- IEEE80211_TXCTL_RATE_CTRL_PROBE;
- else
- control->flags &=
- ~IEEE80211_TXCTL_RATE_CTRL_PROBE;
- }
-
- ieee80211_dump_frame(wiphy_name(local->hw.wiphy),
- "TX to low-level driver",
- tx->u.tx.extra_frag[i]);
- ret = local->ops->tx(local_to_hw(local),
- tx->u.tx.extra_frag[i],
- control);
- if (ret)
- return IEEE80211_TX_FRAG_AGAIN;
- local->mdev->trans_start = jiffies;
- ieee80211_led_tx(local, 1);
- tx->u.tx.extra_frag[i] = NULL;
- }
- kfree(tx->u.tx.extra_frag);
- tx->u.tx.extra_frag = NULL;
- }
- return IEEE80211_TX_OK;
-}
-
-static int ieee80211_tx(struct net_device *dev, struct sk_buff *skb,
- struct ieee80211_tx_control *control)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct sta_info *sta;
- ieee80211_tx_handler *handler;
- struct ieee80211_txrx_data tx;
- ieee80211_tx_result res = TX_DROP, res_prepare;
- int ret, i;
-
- WARN_ON(__ieee80211_queue_pending(local, control->queue));
-
- if (unlikely(skb->len < 10)) {
- dev_kfree_skb(skb);
- return 0;
- }
-
- /* initialises tx */
- res_prepare = __ieee80211_tx_prepare(&tx, skb, dev, control);
-
- if (res_prepare == TX_DROP) {
- dev_kfree_skb(skb);
- return 0;
- }
-
- /*
- * key references are protected using RCU and this requires that
- * we are in a read-site RCU section during receive processing
- */
- rcu_read_lock();
-
- sta = tx.sta;
- tx.u.tx.channel = local->hw.conf.channel;
-
- for (handler = ieee80211_tx_handlers; *handler != NULL;
- handler++) {
- res = (*handler)(&tx);
- if (res != TX_CONTINUE)
- break;
- }
-
- skb = tx.skb; /* handlers are allowed to change skb */
-
- if (sta)
- sta_info_put(sta);
-
- if (unlikely(res == TX_DROP)) {
- I802_DEBUG_INC(local->tx_handlers_drop);
- goto drop;
- }
-
- if (unlikely(res == TX_QUEUED)) {
- I802_DEBUG_INC(local->tx_handlers_queued);
- rcu_read_unlock();
- return 0;
- }
-
- if (tx.u.tx.extra_frag) {
- for (i = 0; i < tx.u.tx.num_extra_frag; i++) {
- int next_len, dur;
- struct ieee80211_hdr *hdr =
- (struct ieee80211_hdr *)
- tx.u.tx.extra_frag[i]->data;
-
- if (i + 1 < tx.u.tx.num_extra_frag) {
- next_len = tx.u.tx.extra_frag[i + 1]->len;
- } else {
- next_len = 0;
- tx.u.tx.rate = tx.u.tx.last_frag_rate;
- }
- dur = ieee80211_duration(&tx, 0, next_len);
- hdr->duration_id = cpu_to_le16(dur);
- }
- }
-
-retry:
- ret = __ieee80211_tx(local, skb, &tx);
- if (ret) {
- struct ieee80211_tx_stored_packet *store =
- &local->pending_packet[control->queue];
-
- if (ret == IEEE80211_TX_FRAG_AGAIN)
- skb = NULL;
- set_bit(IEEE80211_LINK_STATE_PENDING,
- &local->state[control->queue]);
- smp_mb();
- /* When the driver gets out of buffers during sending of
- * fragments and calls ieee80211_stop_queue, there is
- * a small window between IEEE80211_LINK_STATE_XOFF and
- * IEEE80211_LINK_STATE_PENDING flags are set. If a buffer
- * gets available in that window (i.e. driver calls
- * ieee80211_wake_queue), we would end up with ieee80211_tx
- * called with IEEE80211_LINK_STATE_PENDING. Prevent this by
- * continuing transmitting here when that situation is
- * possible to have happened. */
- if (!__ieee80211_queue_stopped(local, control->queue)) {
- clear_bit(IEEE80211_LINK_STATE_PENDING,
- &local->state[control->queue]);
- goto retry;
- }
- memcpy(&store->control, control,
- sizeof(struct ieee80211_tx_control));
- store->skb = skb;
- store->extra_frag = tx.u.tx.extra_frag;
- store->num_extra_frag = tx.u.tx.num_extra_frag;
- store->last_frag_rate = tx.u.tx.last_frag_rate;
- store->last_frag_rate_ctrl_probe =
- !!(tx.flags & IEEE80211_TXRXD_TXPROBE_LAST_FRAG);
- }
- rcu_read_unlock();
- return 0;
-
- drop:
- if (skb)
- dev_kfree_skb(skb);
- for (i = 0; i < tx.u.tx.num_extra_frag; i++)
- if (tx.u.tx.extra_frag[i])
- dev_kfree_skb(tx.u.tx.extra_frag[i]);
- kfree(tx.u.tx.extra_frag);
- rcu_read_unlock();
- return 0;
-}
-
-/* device xmit handlers */
-
-int ieee80211_master_start_xmit(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct ieee80211_tx_control control;
- struct ieee80211_tx_packet_data *pkt_data;
- struct net_device *odev = NULL;
- struct ieee80211_sub_if_data *osdata;
- int headroom;
- int ret;
-
- /*
- * copy control out of the skb so other people can use skb->cb
- */
- pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
- memset(&control, 0, sizeof(struct ieee80211_tx_control));
-
- if (pkt_data->ifindex)
- odev = dev_get_by_index(&init_net, pkt_data->ifindex);
- if (unlikely(odev && !is_ieee80211_device(odev, dev))) {
- dev_put(odev);
- odev = NULL;
- }
- if (unlikely(!odev)) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: Discarded packet with nonexistent "
- "originating device\n", dev->name);
-#endif
- dev_kfree_skb(skb);
- return 0;
- }
- osdata = IEEE80211_DEV_TO_SUB_IF(odev);
-
- headroom = osdata->local->tx_headroom + IEEE80211_ENCRYPT_HEADROOM;
- if (skb_headroom(skb) < headroom) {
- if (pskb_expand_head(skb, headroom, 0, GFP_ATOMIC)) {
- dev_kfree_skb(skb);
- dev_put(odev);
- return 0;
- }
- }
-
- control.vif = &osdata->vif;
- control.type = osdata->vif.type;
- if (pkt_data->flags & IEEE80211_TXPD_REQ_TX_STATUS)
- control.flags |= IEEE80211_TXCTL_REQ_TX_STATUS;
- if (pkt_data->flags & IEEE80211_TXPD_DO_NOT_ENCRYPT)
- control.flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
- if (pkt_data->flags & IEEE80211_TXPD_REQUEUE)
- control.flags |= IEEE80211_TXCTL_REQUEUE;
- if (pkt_data->flags & IEEE80211_TXPD_EAPOL_FRAME)
- control.flags |= IEEE80211_TXCTL_EAPOL_FRAME;
- if (pkt_data->flags & IEEE80211_TXPD_AMPDU)
- control.flags |= IEEE80211_TXCTL_AMPDU;
- control.queue = pkt_data->queue;
-
- ret = ieee80211_tx(odev, skb, &control);
- dev_put(odev);
-
- return ret;
-}
-
-int ieee80211_monitor_start_xmit(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_tx_packet_data *pkt_data;
- struct ieee80211_radiotap_header *prthdr =
- (struct ieee80211_radiotap_header *)skb->data;
- u16 len_rthdr;
-
- /* check for not even having the fixed radiotap header part */
- if (unlikely(skb->len < sizeof(struct ieee80211_radiotap_header)))
- goto fail; /* too short to be possibly valid */
-
- /* is it a header version we can trust to find length from? */
- if (unlikely(prthdr->it_version))
- goto fail; /* only version 0 is supported */
-
- /* then there must be a radiotap header with a length we can use */
- len_rthdr = ieee80211_get_radiotap_len(skb->data);
-
- /* does the skb contain enough to deliver on the alleged length? */
- if (unlikely(skb->len < len_rthdr))
- goto fail; /* skb too short for claimed rt header extent */
-
- skb->dev = local->mdev;
-
- pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
- memset(pkt_data, 0, sizeof(*pkt_data));
- /* needed because we set skb device to master */
- pkt_data->ifindex = dev->ifindex;
-
- pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
-
- /*
- * fix up the pointers accounting for the radiotap
- * header still being in there. We are being given
- * a precooked IEEE80211 header so no need for
- * normal processing
- */
- skb_set_mac_header(skb, len_rthdr);
- /*
- * these are just fixed to the end of the rt area since we
- * don't have any better information and at this point, nobody cares
- */
- skb_set_network_header(skb, len_rthdr);
- skb_set_transport_header(skb, len_rthdr);
-
- /* pass the radiotap header up to the next stage intact */
- dev_queue_xmit(skb);
- return NETDEV_TX_OK;
-
-fail:
- dev_kfree_skb(skb);
- return NETDEV_TX_OK; /* meaning, we dealt with the skb */
-}
-
-/**
- * ieee80211_subif_start_xmit - netif start_xmit function for Ethernet-type
- * subinterfaces (wlan#, WDS, and VLAN interfaces)
- * @skb: packet to be sent
- * @dev: incoming interface
- *
- * Returns: 0 on success (and frees skb in this case) or 1 on failure (skb will
- * not be freed, and caller is responsible for either retrying later or freeing
- * skb).
- *
- * This function takes in an Ethernet header and encapsulates it with suitable
- * IEEE 802.11 header based on which interface the packet is coming in. The
- * encapsulated packet will then be passed to master interface, wlan#.11, for
- * transmission (through low-level driver).
- */
-int ieee80211_subif_start_xmit(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_tx_packet_data *pkt_data;
- struct ieee80211_sub_if_data *sdata;
- int ret = 1, head_need;
- u16 ethertype, hdrlen, fc;
- struct ieee80211_hdr hdr;
- const u8 *encaps_data;
- int encaps_len, skip_header_bytes;
- int nh_pos, h_pos;
- struct sta_info *sta;
- u32 sta_flags = 0;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (unlikely(skb->len < ETH_HLEN)) {
- printk(KERN_DEBUG "%s: short skb (len=%d)\n",
- dev->name, skb->len);
- ret = 0;
- goto fail;
- }
-
- nh_pos = skb_network_header(skb) - skb->data;
- h_pos = skb_transport_header(skb) - skb->data;
-
- /* convert Ethernet header to proper 802.11 header (based on
- * operation mode) */
- ethertype = (skb->data[12] << 8) | skb->data[13];
- fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA;
-
- switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_AP:
- case IEEE80211_IF_TYPE_VLAN:
- fc |= IEEE80211_FCTL_FROMDS;
- /* DA BSSID SA */
- memcpy(hdr.addr1, skb->data, ETH_ALEN);
- memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN);
- memcpy(hdr.addr3, skb->data + ETH_ALEN, ETH_ALEN);
- hdrlen = 24;
- break;
- case IEEE80211_IF_TYPE_WDS:
- fc |= IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS;
- /* RA TA DA SA */
- memcpy(hdr.addr1, sdata->u.wds.remote_addr, ETH_ALEN);
- memcpy(hdr.addr2, dev->dev_addr, ETH_ALEN);
- memcpy(hdr.addr3, skb->data, ETH_ALEN);
- memcpy(hdr.addr4, skb->data + ETH_ALEN, ETH_ALEN);
- hdrlen = 30;
- break;
- case IEEE80211_IF_TYPE_STA:
- fc |= IEEE80211_FCTL_TODS;
- /* BSSID SA DA */
- memcpy(hdr.addr1, sdata->u.sta.bssid, ETH_ALEN);
- memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
- memcpy(hdr.addr3, skb->data, ETH_ALEN);
- hdrlen = 24;
- break;
- case IEEE80211_IF_TYPE_IBSS:
- /* DA SA BSSID */
- memcpy(hdr.addr1, skb->data, ETH_ALEN);
- memcpy(hdr.addr2, skb->data + ETH_ALEN, ETH_ALEN);
- memcpy(hdr.addr3, sdata->u.sta.bssid, ETH_ALEN);
- hdrlen = 24;
- break;
- default:
- ret = 0;
- goto fail;
- }
-
- /*
- * There's no need to try to look up the destination
- * if it is a multicast address (which can only happen
- * in AP mode)
- */
- if (!is_multicast_ether_addr(hdr.addr1)) {
- sta = sta_info_get(local, hdr.addr1);
- if (sta) {
- sta_flags = sta->flags;
- sta_info_put(sta);
- }
- }
-
- /* receiver is QoS enabled, use a QoS type frame */
- if (sta_flags & WLAN_STA_WME) {
- fc |= IEEE80211_STYPE_QOS_DATA;
- hdrlen += 2;
- }
-
- /*
- * Drop unicast frames to unauthorised stations unless they are
- * EAPOL frames from the local station.
- */
- if (unlikely(!is_multicast_ether_addr(hdr.addr1) &&
- !(sta_flags & WLAN_STA_AUTHORIZED) &&
- !(ethertype == ETH_P_PAE &&
- compare_ether_addr(dev->dev_addr,
- skb->data + ETH_ALEN) == 0))) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- DECLARE_MAC_BUF(mac);
-
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: dropped frame to %s"
- " (unauthorized port)\n", dev->name,
- print_mac(mac, hdr.addr1));
-#endif
-
- I802_DEBUG_INC(local->tx_handlers_drop_unauth_port);
-
- ret = 0;
- goto fail;
- }
-
- hdr.frame_control = cpu_to_le16(fc);
- hdr.duration_id = 0;
- hdr.seq_ctrl = 0;
-
- skip_header_bytes = ETH_HLEN;
- if (ethertype == ETH_P_AARP || ethertype == ETH_P_IPX) {
- encaps_data = bridge_tunnel_header;
- encaps_len = sizeof(bridge_tunnel_header);
- skip_header_bytes -= 2;
- } else if (ethertype >= 0x600) {
- encaps_data = rfc1042_header;
- encaps_len = sizeof(rfc1042_header);
- skip_header_bytes -= 2;
- } else {
- encaps_data = NULL;
- encaps_len = 0;
- }
-
- skb_pull(skb, skip_header_bytes);
- nh_pos -= skip_header_bytes;
- h_pos -= skip_header_bytes;
-
- /* TODO: implement support for fragments so that there is no need to
- * reallocate and copy payload; it might be enough to support one
- * extra fragment that would be copied in the beginning of the frame
- * data.. anyway, it would be nice to include this into skb structure
- * somehow
- *
- * There are few options for this:
- * use skb->cb as an extra space for 802.11 header
- * allocate new buffer if not enough headroom
- * make sure that there is enough headroom in every skb by increasing
- * build in headroom in __dev_alloc_skb() (linux/skbuff.h) and
- * alloc_skb() (net/core/skbuff.c)
- */
- head_need = hdrlen + encaps_len + local->tx_headroom;
- head_need -= skb_headroom(skb);
-
- /* We are going to modify skb data, so make a copy of it if happens to
- * be cloned. This could happen, e.g., with Linux bridge code passing
- * us broadcast frames. */
-
- if (head_need > 0 || skb_cloned(skb)) {
-#if 0
- printk(KERN_DEBUG "%s: need to reallocate buffer for %d bytes "
- "of headroom\n", dev->name, head_need);
-#endif
-
- if (skb_cloned(skb))
- I802_DEBUG_INC(local->tx_expand_skb_head_cloned);
- else
- I802_DEBUG_INC(local->tx_expand_skb_head);
- /* Since we have to reallocate the buffer, make sure that there
- * is enough room for possible WEP IV/ICV and TKIP (8 bytes
- * before payload and 12 after). */
- if (pskb_expand_head(skb, (head_need > 0 ? head_need + 8 : 8),
- 12, GFP_ATOMIC)) {
- printk(KERN_DEBUG "%s: failed to reallocate TX buffer"
- "\n", dev->name);
- goto fail;
- }
- }
-
- if (encaps_data) {
- memcpy(skb_push(skb, encaps_len), encaps_data, encaps_len);
- nh_pos += encaps_len;
- h_pos += encaps_len;
- }
-
- if (fc & IEEE80211_STYPE_QOS_DATA) {
- __le16 *qos_control;
-
- qos_control = (__le16*) skb_push(skb, 2);
- memcpy(skb_push(skb, hdrlen - 2), &hdr, hdrlen - 2);
- /*
- * Maybe we could actually set some fields here, for now just
- * initialise to zero to indicate no special operation.
- */
- *qos_control = 0;
- } else
- memcpy(skb_push(skb, hdrlen), &hdr, hdrlen);
-
- nh_pos += hdrlen;
- h_pos += hdrlen;
-
- pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
- memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data));
- pkt_data->ifindex = dev->ifindex;
- if (ethertype == ETH_P_PAE)
- pkt_data->flags |= IEEE80211_TXPD_EAPOL_FRAME;
-
- skb->dev = local->mdev;
- dev->stats.tx_packets++;
- dev->stats.tx_bytes += skb->len;
-
- /* Update skb pointers to various headers since this modified frame
- * is going to go through Linux networking code that may potentially
- * need things like pointer to IP header. */
- skb_set_mac_header(skb, 0);
- skb_set_network_header(skb, nh_pos);
- skb_set_transport_header(skb, h_pos);
-
- dev->trans_start = jiffies;
- dev_queue_xmit(skb);
-
- return 0;
-
- fail:
- if (!ret)
- dev_kfree_skb(skb);
-
- return ret;
-}
-
-/* helper functions for pending packets for when queues are stopped */
-
-void ieee80211_clear_tx_pending(struct ieee80211_local *local)
-{
- int i, j;
- struct ieee80211_tx_stored_packet *store;
-
- for (i = 0; i < local->hw.queues; i++) {
- if (!__ieee80211_queue_pending(local, i))
- continue;
- store = &local->pending_packet[i];
- kfree_skb(store->skb);
- for (j = 0; j < store->num_extra_frag; j++)
- kfree_skb(store->extra_frag[j]);
- kfree(store->extra_frag);
- clear_bit(IEEE80211_LINK_STATE_PENDING, &local->state[i]);
- }
-}
-
-void ieee80211_tx_pending(unsigned long data)
-{
- struct ieee80211_local *local = (struct ieee80211_local *)data;
- struct net_device *dev = local->mdev;
- struct ieee80211_tx_stored_packet *store;
- struct ieee80211_txrx_data tx;
- int i, ret, reschedule = 0;
-
- netif_tx_lock_bh(dev);
- for (i = 0; i < local->hw.queues; i++) {
- if (__ieee80211_queue_stopped(local, i))
- continue;
- if (!__ieee80211_queue_pending(local, i)) {
- reschedule = 1;
- continue;
- }
- store = &local->pending_packet[i];
- tx.u.tx.control = &store->control;
- tx.u.tx.extra_frag = store->extra_frag;
- tx.u.tx.num_extra_frag = store->num_extra_frag;
- tx.u.tx.last_frag_rate = store->last_frag_rate;
- tx.flags = 0;
- if (store->last_frag_rate_ctrl_probe)
- tx.flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
- ret = __ieee80211_tx(local, store->skb, &tx);
- if (ret) {
- if (ret == IEEE80211_TX_FRAG_AGAIN)
- store->skb = NULL;
- } else {
- clear_bit(IEEE80211_LINK_STATE_PENDING,
- &local->state[i]);
- reschedule = 1;
- }
- }
- netif_tx_unlock_bh(dev);
- if (reschedule) {
- if (!ieee80211_qdisc_installed(dev)) {
- if (!__ieee80211_queue_stopped(local, 0))
- netif_wake_queue(dev);
- } else
- netif_schedule(dev);
- }
-}
-
-/* functions for drivers to get certain frames */
-
-static void ieee80211_beacon_add_tim(struct ieee80211_local *local,
- struct ieee80211_if_ap *bss,
- struct sk_buff *skb,
- struct beacon_data *beacon)
-{
- u8 *pos, *tim;
- int aid0 = 0;
- int i, have_bits = 0, n1, n2;
-
- /* Generate bitmap for TIM only if there are any STAs in power save
- * mode. */
- read_lock_bh(&local->sta_lock);
- if (atomic_read(&bss->num_sta_ps) > 0)
- /* in the hope that this is faster than
- * checking byte-for-byte */
- have_bits = !bitmap_empty((unsigned long*)bss->tim,
- IEEE80211_MAX_AID+1);
-
- if (bss->dtim_count == 0)
- bss->dtim_count = beacon->dtim_period - 1;
- else
- bss->dtim_count--;
-
- tim = pos = (u8 *) skb_put(skb, 6);
- *pos++ = WLAN_EID_TIM;
- *pos++ = 4;
- *pos++ = bss->dtim_count;
- *pos++ = beacon->dtim_period;
-
- if (bss->dtim_count == 0 && !skb_queue_empty(&bss->ps_bc_buf))
- aid0 = 1;
-
- if (have_bits) {
- /* Find largest even number N1 so that bits numbered 1 through
- * (N1 x 8) - 1 in the bitmap are 0 and number N2 so that bits
- * (N2 + 1) x 8 through 2007 are 0. */
- n1 = 0;
- for (i = 0; i < IEEE80211_MAX_TIM_LEN; i++) {
- if (bss->tim[i]) {
- n1 = i & 0xfe;
- break;
- }
- }
- n2 = n1;
- for (i = IEEE80211_MAX_TIM_LEN - 1; i >= n1; i--) {
- if (bss->tim[i]) {
- n2 = i;
- break;
- }
- }
-
- /* Bitmap control */
- *pos++ = n1 | aid0;
- /* Part Virt Bitmap */
- memcpy(pos, bss->tim + n1, n2 - n1 + 1);
-
- tim[1] = n2 - n1 + 4;
- skb_put(skb, n2 - n1);
- } else {
- *pos++ = aid0; /* Bitmap control */
- *pos++ = 0; /* Part Virt Bitmap */
- }
- read_unlock_bh(&local->sta_lock);
-}
-
-struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_tx_control *control)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct sk_buff *skb;
- struct net_device *bdev;
- struct ieee80211_sub_if_data *sdata = NULL;
- struct ieee80211_if_ap *ap = NULL;
- struct rate_selection rsel;
- struct beacon_data *beacon;
- struct ieee80211_supported_band *sband;
-
- sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
-
- rcu_read_lock();
-
- sdata = vif_to_sdata(vif);
- bdev = sdata->dev;
- ap = &sdata->u.ap;
-
- beacon = rcu_dereference(ap->beacon);
-
- if (!ap || sdata->vif.type != IEEE80211_IF_TYPE_AP || !beacon) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- if (net_ratelimit())
- printk(KERN_DEBUG "no beacon data avail for %s\n",
- bdev->name);
-#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- skb = NULL;
- goto out;
- }
-
- /* headroom, head length, tail length and maximum TIM length */
- skb = dev_alloc_skb(local->tx_headroom + beacon->head_len +
- beacon->tail_len + 256);
- if (!skb)
- goto out;
-
- skb_reserve(skb, local->tx_headroom);
- memcpy(skb_put(skb, beacon->head_len), beacon->head,
- beacon->head_len);
-
- ieee80211_include_sequence(sdata, (struct ieee80211_hdr *)skb->data);
-
- ieee80211_beacon_add_tim(local, ap, skb, beacon);
-
- if (beacon->tail)
- memcpy(skb_put(skb, beacon->tail_len), beacon->tail,
- beacon->tail_len);
-
- if (control) {
- rate_control_get_rate(local->mdev, sband, skb, &rsel);
- if (!rsel.rate) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: ieee80211_beacon_get: "
- "no rate found\n",
- wiphy_name(local->hw.wiphy));
- }
- dev_kfree_skb(skb);
- skb = NULL;
- goto out;
- }
-
- control->vif = vif;
- control->tx_rate = rsel.rate;
- if (sdata->bss_conf.use_short_preamble &&
- rsel.rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
- control->flags |= IEEE80211_TXCTL_SHORT_PREAMBLE;
- control->antenna_sel_tx = local->hw.conf.antenna_sel_tx;
- control->flags |= IEEE80211_TXCTL_NO_ACK;
- control->retry_limit = 1;
- control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
- }
-
- ap->num_beacons++;
-
- out:
- rcu_read_unlock();
- return skb;
-}
-EXPORT_SYMBOL(ieee80211_beacon_get);
-
-void ieee80211_rts_get(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
- const void *frame, size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl,
- struct ieee80211_rts *rts)
-{
- const struct ieee80211_hdr *hdr = frame;
- u16 fctl;
-
- fctl = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS;
- rts->frame_control = cpu_to_le16(fctl);
- rts->duration = ieee80211_rts_duration(hw, vif, frame_len,
- frame_txctl);
- memcpy(rts->ra, hdr->addr1, sizeof(rts->ra));
- memcpy(rts->ta, hdr->addr2, sizeof(rts->ta));
-}
-EXPORT_SYMBOL(ieee80211_rts_get);
-
-void ieee80211_ctstoself_get(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
- const void *frame, size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl,
- struct ieee80211_cts *cts)
-{
- const struct ieee80211_hdr *hdr = frame;
- u16 fctl;
-
- fctl = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS;
- cts->frame_control = cpu_to_le16(fctl);
- cts->duration = ieee80211_ctstoself_duration(hw, vif,
- frame_len, frame_txctl);
- memcpy(cts->ra, hdr->addr1, sizeof(cts->ra));
-}
-EXPORT_SYMBOL(ieee80211_ctstoself_get);
-
-struct sk_buff *
-ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct ieee80211_tx_control *control)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct sk_buff *skb;
- struct sta_info *sta;
- ieee80211_tx_handler *handler;
- struct ieee80211_txrx_data tx;
- ieee80211_tx_result res = TX_DROP;
- struct net_device *bdev;
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_if_ap *bss = NULL;
- struct beacon_data *beacon;
-
- sdata = vif_to_sdata(vif);
- bdev = sdata->dev;
-
-
- if (!bss)
- return NULL;
-
- rcu_read_lock();
- beacon = rcu_dereference(bss->beacon);
-
- if (sdata->vif.type != IEEE80211_IF_TYPE_AP || !beacon ||
- !beacon->head) {
- rcu_read_unlock();
- return NULL;
- }
- rcu_read_unlock();
-
- if (bss->dtim_count != 0)
- return NULL; /* send buffered bc/mc only after DTIM beacon */
- memset(control, 0, sizeof(*control));
- while (1) {
- skb = skb_dequeue(&bss->ps_bc_buf);
- if (!skb)
- return NULL;
- local->total_ps_buffered--;
-
- if (!skb_queue_empty(&bss->ps_bc_buf) && skb->len >= 2) {
- struct ieee80211_hdr *hdr =
- (struct ieee80211_hdr *) skb->data;
- /* more buffered multicast/broadcast frames ==> set
- * MoreData flag in IEEE 802.11 header to inform PS
- * STAs */
- hdr->frame_control |=
- cpu_to_le16(IEEE80211_FCTL_MOREDATA);
- }
-
- if (!ieee80211_tx_prepare(&tx, skb, local->mdev, control))
- break;
- dev_kfree_skb_any(skb);
- }
- sta = tx.sta;
- tx.flags |= IEEE80211_TXRXD_TXPS_BUFFERED;
- tx.u.tx.channel = local->hw.conf.channel;
-
- for (handler = ieee80211_tx_handlers; *handler != NULL; handler++) {
- res = (*handler)(&tx);
- if (res == TX_DROP || res == TX_QUEUED)
- break;
- }
- skb = tx.skb; /* handlers are allowed to change skb */
-
- if (res == TX_DROP) {
- I802_DEBUG_INC(local->tx_handlers_drop);
- dev_kfree_skb(skb);
- skb = NULL;
- } else if (res == TX_QUEUED) {
- I802_DEBUG_INC(local->tx_handlers_queued);
- skb = NULL;
- }
-
- if (sta)
- sta_info_put(sta);
-
- return skb;
-}
-EXPORT_SYMBOL(ieee80211_get_buffered_bc);
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005-2006, Devicescape Software, Inc.
- * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * utilities for mac80211
- */
-
-#include <net/mac80211.h>
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-#include <linux/etherdevice.h>
-#include <linux/if_arp.h>
-#include <linux/wireless.h>
-#include <linux/bitmap.h>
-#include <net/net_namespace.h>
-#include <net/cfg80211.h>
-#include <net/rtnetlink.h>
-
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-#include "wme.h"
-
-/* privid for wiphys to determine whether they belong to us or not */
-void *mac80211_wiphy_privid = &mac80211_wiphy_privid;
-
-/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
-/* Ethernet-II snap header (RFC1042 for most EtherTypes) */
-const unsigned char rfc1042_header[] =
- { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
-
-/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
-const unsigned char bridge_tunnel_header[] =
- { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
-
-
-u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
- enum ieee80211_if_types type)
-{
- u16 fc;
-
- /* drop ACK/CTS frames and incorrect hdr len (ctrl) */
- if (len < 16)
- return NULL;
-
- fc = le16_to_cpu(hdr->frame_control);
-
- switch (fc & IEEE80211_FCTL_FTYPE) {
- case IEEE80211_FTYPE_DATA:
- if (len < 24) /* drop incorrect hdr len (data) */
- return NULL;
- switch (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
- case IEEE80211_FCTL_TODS:
- return hdr->addr1;
- case (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS):
- return NULL;
- case IEEE80211_FCTL_FROMDS:
- return hdr->addr2;
- case 0:
- return hdr->addr3;
- }
- break;
- case IEEE80211_FTYPE_MGMT:
- if (len < 24) /* drop incorrect hdr len (mgmt) */
- return NULL;
- return hdr->addr3;
- case IEEE80211_FTYPE_CTL:
- if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)
- return hdr->addr1;
- else if ((fc & IEEE80211_FCTL_STYPE) ==
- IEEE80211_STYPE_BACK_REQ) {
- switch (type) {
- case IEEE80211_IF_TYPE_STA:
- return hdr->addr2;
- case IEEE80211_IF_TYPE_AP:
- case IEEE80211_IF_TYPE_VLAN:
- return hdr->addr1;
- default:
- return NULL;
- }
- }
- else
- return NULL;
- }
-
- return NULL;
-}
-
-int ieee80211_get_hdrlen(u16 fc)
-{
- int hdrlen = 24;
-
- switch (fc & IEEE80211_FCTL_FTYPE) {
- case IEEE80211_FTYPE_DATA:
- if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
- hdrlen = 30; /* Addr4 */
- /*
- * The QoS Control field is two bytes and its presence is
- * indicated by the IEEE80211_STYPE_QOS_DATA bit. Add 2 to
- * hdrlen if that bit is set.
- * This works by masking out the bit and shifting it to
- * bit position 1 so the result has the value 0 or 2.
- */
- hdrlen += (fc & IEEE80211_STYPE_QOS_DATA)
- >> (ilog2(IEEE80211_STYPE_QOS_DATA)-1);
- break;
- case IEEE80211_FTYPE_CTL:
- /*
- * ACK and CTS are 10 bytes, all others 16. To see how
- * to get this condition consider
- * subtype mask: 0b0000000011110000 (0x00F0)
- * ACK subtype: 0b0000000011010000 (0x00D0)
- * CTS subtype: 0b0000000011000000 (0x00C0)
- * bits that matter: ^^^ (0x00E0)
- * value of those: 0b0000000011000000 (0x00C0)
- */
- if ((fc & 0xE0) == 0xC0)
- hdrlen = 10;
- else
- hdrlen = 16;
- break;
- }
-
- return hdrlen;
-}
-EXPORT_SYMBOL(ieee80211_get_hdrlen);
-
-int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
-{
- const struct ieee80211_hdr *hdr = (const struct ieee80211_hdr *) skb->data;
- int hdrlen;
-
- if (unlikely(skb->len < 10))
- return 0;
- hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control));
- if (unlikely(hdrlen > skb->len))
- return 0;
- return hdrlen;
-}
-EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb);
-
-void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
-
- hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
- if (tx->u.tx.extra_frag) {
- struct ieee80211_hdr *fhdr;
- int i;
- for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
- fhdr = (struct ieee80211_hdr *)
- tx->u.tx.extra_frag[i]->data;
- fhdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
- }
- }
-}
-
-int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
- int rate, int erp, int short_preamble)
-{
- int dur;
-
- /* calculate duration (in microseconds, rounded up to next higher
- * integer if it includes a fractional microsecond) to send frame of
- * len bytes (does not include FCS) at the given rate. Duration will
- * also include SIFS.
- *
- * rate is in 100 kbps, so divident is multiplied by 10 in the
- * DIV_ROUND_UP() operations.
- */
-
- if (local->hw.conf.channel->band == IEEE80211_BAND_5GHZ || erp) {
- /*
- * OFDM:
- *
- * N_DBPS = DATARATE x 4
- * N_SYM = Ceiling((16+8xLENGTH+6) / N_DBPS)
- * (16 = SIGNAL time, 6 = tail bits)
- * TXTIME = T_PREAMBLE + T_SIGNAL + T_SYM x N_SYM + Signal Ext
- *
- * T_SYM = 4 usec
- * 802.11a - 17.5.2: aSIFSTime = 16 usec
- * 802.11g - 19.8.4: aSIFSTime = 10 usec +
- * signal ext = 6 usec
- */
- dur = 16; /* SIFS + signal ext */
- dur += 16; /* 17.3.2.3: T_PREAMBLE = 16 usec */
- dur += 4; /* 17.3.2.3: T_SIGNAL = 4 usec */
- dur += 4 * DIV_ROUND_UP((16 + 8 * (len + 4) + 6) * 10,
- 4 * rate); /* T_SYM x N_SYM */
- } else {
- /*
- * 802.11b or 802.11g with 802.11b compatibility:
- * 18.3.4: TXTIME = PreambleLength + PLCPHeaderTime +
- * Ceiling(((LENGTH+PBCC)x8)/DATARATE). PBCC=0.
- *
- * 802.11 (DS): 15.3.3, 802.11b: 18.3.4
- * aSIFSTime = 10 usec
- * aPreambleLength = 144 usec or 72 usec with short preamble
- * aPLCPHeaderLength = 48 usec or 24 usec with short preamble
- */
- dur = 10; /* aSIFSTime = 10 usec */
- dur += short_preamble ? (72 + 24) : (144 + 48);
-
- dur += DIV_ROUND_UP(8 * (len + 4) * 10, rate);
- }
-
- return dur;
-}
-
-/* Exported duration function for driver use */
-__le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- size_t frame_len,
- struct ieee80211_rate *rate)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
- u16 dur;
- int erp;
-
- erp = 0;
- if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
- erp = rate->flags & IEEE80211_RATE_ERP_G;
-
- dur = ieee80211_frame_duration(local, frame_len, rate->bitrate, erp,
- sdata->bss_conf.use_short_preamble);
-
- return cpu_to_le16(dur);
-}
-EXPORT_SYMBOL(ieee80211_generic_frame_duration);
-
-__le16 ieee80211_rts_duration(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif, size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_rate *rate;
- struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
- bool short_preamble;
- int erp;
- u16 dur;
-
- short_preamble = sdata->bss_conf.use_short_preamble;
-
- rate = frame_txctl->rts_cts_rate;
-
- erp = 0;
- if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
- erp = rate->flags & IEEE80211_RATE_ERP_G;
-
- /* CTS duration */
- dur = ieee80211_frame_duration(local, 10, rate->bitrate,
- erp, short_preamble);
- /* Data frame duration */
- dur += ieee80211_frame_duration(local, frame_len, rate->bitrate,
- erp, short_preamble);
- /* ACK duration */
- dur += ieee80211_frame_duration(local, 10, rate->bitrate,
- erp, short_preamble);
-
- return cpu_to_le16(dur);
-}
-EXPORT_SYMBOL(ieee80211_rts_duration);
-
-__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- size_t frame_len,
- const struct ieee80211_tx_control *frame_txctl)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_rate *rate;
- struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
- bool short_preamble;
- int erp;
- u16 dur;
-
- short_preamble = sdata->bss_conf.use_short_preamble;
-
- rate = frame_txctl->rts_cts_rate;
- erp = 0;
- if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE)
- erp = rate->flags & IEEE80211_RATE_ERP_G;
-
- /* Data frame duration */
- dur = ieee80211_frame_duration(local, frame_len, rate->bitrate,
- erp, short_preamble);
- if (!(frame_txctl->flags & IEEE80211_TXCTL_NO_ACK)) {
- /* ACK duration */
- dur += ieee80211_frame_duration(local, 10, rate->bitrate,
- erp, short_preamble);
- }
-
- return cpu_to_le16(dur);
-}
-EXPORT_SYMBOL(ieee80211_ctstoself_duration);
-
-void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue)
-{
- struct ieee80211_local *local = hw_to_local(hw);
-
- if (test_and_clear_bit(IEEE80211_LINK_STATE_XOFF,
- &local->state[queue])) {
- if (test_bit(IEEE80211_LINK_STATE_PENDING,
- &local->state[queue]))
- tasklet_schedule(&local->tx_pending_tasklet);
- else
- if (!ieee80211_qdisc_installed(local->mdev)) {
- if (queue == 0)
- netif_wake_queue(local->mdev);
- } else
- __netif_schedule(local->mdev);
- }
-}
-EXPORT_SYMBOL(ieee80211_wake_queue);
-
-void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue)
-{
- struct ieee80211_local *local = hw_to_local(hw);
-
- if (!ieee80211_qdisc_installed(local->mdev) && queue == 0)
- netif_stop_queue(local->mdev);
- set_bit(IEEE80211_LINK_STATE_XOFF, &local->state[queue]);
-}
-EXPORT_SYMBOL(ieee80211_stop_queue);
-
-void ieee80211_start_queues(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- int i;
-
- for (i = 0; i < local->hw.queues; i++)
- clear_bit(IEEE80211_LINK_STATE_XOFF, &local->state[i]);
- if (!ieee80211_qdisc_installed(local->mdev))
- netif_start_queue(local->mdev);
-}
-EXPORT_SYMBOL(ieee80211_start_queues);
-
-void ieee80211_stop_queues(struct ieee80211_hw *hw)
-{
- int i;
-
- for (i = 0; i < hw->queues; i++)
- ieee80211_stop_queue(hw, i);
-}
-EXPORT_SYMBOL(ieee80211_stop_queues);
-
-void ieee80211_wake_queues(struct ieee80211_hw *hw)
-{
- int i;
-
- for (i = 0; i < hw->queues; i++)
- ieee80211_wake_queue(hw, i);
-}
-EXPORT_SYMBOL(ieee80211_wake_queues);
-
-void ieee80211_iterate_active_interfaces(
- struct ieee80211_hw *hw,
- void (*iterator)(void *data, u8 *mac,
- struct ieee80211_vif *vif),
- void *data)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_sub_if_data *sdata;
-
- rcu_read_lock();
-
- list_for_each_entry_rcu(sdata, &local->interfaces, list) {
- switch (sdata->vif.type) {
- case IEEE80211_IF_TYPE_INVALID:
- case IEEE80211_IF_TYPE_MNTR:
- case IEEE80211_IF_TYPE_VLAN:
- continue;
- case IEEE80211_IF_TYPE_AP:
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- case IEEE80211_IF_TYPE_WDS:
- break;
- }
- if (sdata->dev == local->mdev)
- continue;
- if (netif_running(sdata->dev))
- iterator(data, sdata->dev->dev_addr,
- &sdata->vif);
- }
-
- rcu_read_unlock();
-}
-EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces);
+++ /dev/null
-/*
- * Software WEP encryption implementation
- * Copyright 2002, Jouni Malinen <jkmaline@cc.hut.fi>
- * Copyright 2003, Instant802 Networks, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/random.h>
-#include <linux/compiler.h>
-#include <linux/crc32.h>
-#include <linux/crypto.h>
-#include <linux/err.h>
-#include <linux/mm.h>
-#include <linux/scatterlist.h>
-
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-#include "wep.h"
-
-
-int ieee80211_wep_init(struct ieee80211_local *local)
-{
- /* start WEP IV from a random value */
- get_random_bytes(&local->wep_iv, WEP_IV_LEN);
-
- local->wep_tx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0,
- CRYPTO_ALG_ASYNC);
- if (IS_ERR(local->wep_tx_tfm))
- return -ENOMEM;
-
- local->wep_rx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0,
- CRYPTO_ALG_ASYNC);
- if (IS_ERR(local->wep_rx_tfm)) {
- crypto_free_blkcipher(local->wep_tx_tfm);
- return -ENOMEM;
- }
-
- return 0;
-}
-
-void ieee80211_wep_free(struct ieee80211_local *local)
-{
- crypto_free_blkcipher(local->wep_tx_tfm);
- crypto_free_blkcipher(local->wep_rx_tfm);
-}
-
-static inline int ieee80211_wep_weak_iv(u32 iv, int keylen)
-{
- /* Fluhrer, Mantin, and Shamir have reported weaknesses in the
- * key scheduling algorithm of RC4. At least IVs (KeyByte + 3,
- * 0xff, N) can be used to speedup attacks, so avoid using them. */
- if ((iv & 0xff00) == 0xff00) {
- u8 B = (iv >> 16) & 0xff;
- if (B >= 3 && B < 3 + keylen)
- return 1;
- }
- return 0;
-}
-
-
-static void ieee80211_wep_get_iv(struct ieee80211_local *local,
- struct ieee80211_key *key, u8 *iv)
-{
- local->wep_iv++;
- if (ieee80211_wep_weak_iv(local->wep_iv, key->conf.keylen))
- local->wep_iv += 0x0100;
-
- if (!iv)
- return;
-
- *iv++ = (local->wep_iv >> 16) & 0xff;
- *iv++ = (local->wep_iv >> 8) & 0xff;
- *iv++ = local->wep_iv & 0xff;
- *iv++ = key->conf.keyidx << 6;
-}
-
-
-static u8 *ieee80211_wep_add_iv(struct ieee80211_local *local,
- struct sk_buff *skb,
- struct ieee80211_key *key)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u16 fc;
- int hdrlen;
- u8 *newhdr;
-
- fc = le16_to_cpu(hdr->frame_control);
- fc |= IEEE80211_FCTL_PROTECTED;
- hdr->frame_control = cpu_to_le16(fc);
-
- if ((skb_headroom(skb) < WEP_IV_LEN ||
- skb_tailroom(skb) < WEP_ICV_LEN)) {
- I802_DEBUG_INC(local->tx_expand_skb_head);
- if (unlikely(pskb_expand_head(skb, WEP_IV_LEN, WEP_ICV_LEN,
- GFP_ATOMIC)))
- return NULL;
- }
-
- hdrlen = ieee80211_get_hdrlen(fc);
- newhdr = skb_push(skb, WEP_IV_LEN);
- memmove(newhdr, newhdr + WEP_IV_LEN, hdrlen);
- ieee80211_wep_get_iv(local, key, newhdr + hdrlen);
- return newhdr + hdrlen;
-}
-
-
-static void ieee80211_wep_remove_iv(struct ieee80211_local *local,
- struct sk_buff *skb,
- struct ieee80211_key *key)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u16 fc;
- int hdrlen;
-
- fc = le16_to_cpu(hdr->frame_control);
- hdrlen = ieee80211_get_hdrlen(fc);
- memmove(skb->data + WEP_IV_LEN, skb->data, hdrlen);
- skb_pull(skb, WEP_IV_LEN);
-}
-
-
-/* Perform WEP encryption using given key. data buffer must have tailroom
- * for 4-byte ICV. data_len must not include this ICV. Note: this function
- * does _not_ add IV. data = RC4(data | CRC32(data)) */
-void ieee80211_wep_encrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
- size_t klen, u8 *data, size_t data_len)
-{
- struct blkcipher_desc desc = { .tfm = tfm };
- struct scatterlist sg;
- __le32 *icv;
-
- icv = (__le32 *)(data + data_len);
- *icv = cpu_to_le32(~crc32_le(~0, data, data_len));
-
- crypto_blkcipher_setkey(tfm, rc4key, klen);
- sg_init_one(&sg, data, data_len + WEP_ICV_LEN);
- crypto_blkcipher_encrypt(&desc, &sg, &sg, sg.length);
-}
-
-
-/* Perform WEP encryption on given skb. 4 bytes of extra space (IV) in the
- * beginning of the buffer 4 bytes of extra space (ICV) in the end of the
- * buffer will be added. Both IV and ICV will be transmitted, so the
- * payload length increases with 8 bytes.
- *
- * WEP frame payload: IV + TX key idx, RC4(data), ICV = RC4(CRC32(data))
- */
-int ieee80211_wep_encrypt(struct ieee80211_local *local, struct sk_buff *skb,
- struct ieee80211_key *key)
-{
- u32 klen;
- u8 *rc4key, *iv;
- size_t len;
-
- if (!key || key->conf.alg != ALG_WEP)
- return -1;
-
- klen = 3 + key->conf.keylen;
- rc4key = kmalloc(klen, GFP_ATOMIC);
- if (!rc4key)
- return -1;
-
- iv = ieee80211_wep_add_iv(local, skb, key);
- if (!iv) {
- kfree(rc4key);
- return -1;
- }
-
- len = skb->len - (iv + WEP_IV_LEN - skb->data);
-
- /* Prepend 24-bit IV to RC4 key */
- memcpy(rc4key, iv, 3);
-
- /* Copy rest of the WEP key (the secret part) */
- memcpy(rc4key + 3, key->conf.key, key->conf.keylen);
-
- /* Add room for ICV */
- skb_put(skb, WEP_ICV_LEN);
-
- ieee80211_wep_encrypt_data(local->wep_tx_tfm, rc4key, klen,
- iv + WEP_IV_LEN, len);
-
- kfree(rc4key);
-
- return 0;
-}
-
-
-/* Perform WEP decryption using given key. data buffer includes encrypted
- * payload, including 4-byte ICV, but _not_ IV. data_len must not include ICV.
- * Return 0 on success and -1 on ICV mismatch. */
-int ieee80211_wep_decrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
- size_t klen, u8 *data, size_t data_len)
-{
- struct blkcipher_desc desc = { .tfm = tfm };
- struct scatterlist sg;
- __le32 crc;
-
- crypto_blkcipher_setkey(tfm, rc4key, klen);
- sg_init_one(&sg, data, data_len + WEP_ICV_LEN);
- crypto_blkcipher_decrypt(&desc, &sg, &sg, sg.length);
-
- crc = cpu_to_le32(~crc32_le(~0, data, data_len));
- if (memcmp(&crc, data + data_len, WEP_ICV_LEN) != 0)
- /* ICV mismatch */
- return -1;
-
- return 0;
-}
-
-
-/* Perform WEP decryption on given skb. Buffer includes whole WEP part of
- * the frame: IV (4 bytes), encrypted payload (including SNAP header),
- * ICV (4 bytes). skb->len includes both IV and ICV.
- *
- * Returns 0 if frame was decrypted successfully and ICV was correct and -1 on
- * failure. If frame is OK, IV and ICV will be removed, i.e., decrypted payload
- * is moved to the beginning of the skb and skb length will be reduced.
- */
-int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb,
- struct ieee80211_key *key)
-{
- u32 klen;
- u8 *rc4key;
- u8 keyidx;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u16 fc;
- int hdrlen;
- size_t len;
- int ret = 0;
-
- fc = le16_to_cpu(hdr->frame_control);
- if (!(fc & IEEE80211_FCTL_PROTECTED))
- return -1;
-
- hdrlen = ieee80211_get_hdrlen(fc);
-
- if (skb->len < 8 + hdrlen)
- return -1;
-
- len = skb->len - hdrlen - 8;
-
- keyidx = skb->data[hdrlen + 3] >> 6;
-
- if (!key || keyidx != key->conf.keyidx || key->conf.alg != ALG_WEP)
- return -1;
-
- klen = 3 + key->conf.keylen;
-
- rc4key = kmalloc(klen, GFP_ATOMIC);
- if (!rc4key)
- return -1;
-
- /* Prepend 24-bit IV to RC4 key */
- memcpy(rc4key, skb->data + hdrlen, 3);
-
- /* Copy rest of the WEP key (the secret part) */
- memcpy(rc4key + 3, key->conf.key, key->conf.keylen);
-
- if (ieee80211_wep_decrypt_data(local->wep_rx_tfm, rc4key, klen,
- skb->data + hdrlen + WEP_IV_LEN,
- len)) {
- if (net_ratelimit())
- printk(KERN_DEBUG "WEP decrypt failed (ICV)\n");
- ret = -1;
- }
-
- kfree(rc4key);
-
- /* Trim ICV */
- skb_trim(skb, skb->len - WEP_ICV_LEN);
-
- /* Remove IV */
- memmove(skb->data + WEP_IV_LEN, skb->data, hdrlen);
- skb_pull(skb, WEP_IV_LEN);
-
- return ret;
-}
-
-
-u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u16 fc;
- int hdrlen;
- u8 *ivpos;
- u32 iv;
-
- fc = le16_to_cpu(hdr->frame_control);
- if (!(fc & IEEE80211_FCTL_PROTECTED))
- return NULL;
-
- hdrlen = ieee80211_get_hdrlen(fc);
- ivpos = skb->data + hdrlen;
- iv = (ivpos[0] << 16) | (ivpos[1] << 8) | ivpos[2];
-
- if (ieee80211_wep_weak_iv(iv, key->conf.keylen))
- return ivpos;
-
- return NULL;
-}
-
-ieee80211_rx_result
-ieee80211_crypto_wep_decrypt(struct ieee80211_txrx_data *rx)
-{
- if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA &&
- ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH))
- return RX_CONTINUE;
-
- if (!(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) {
- if (ieee80211_wep_decrypt(rx->local, rx->skb, rx->key)) {
-#ifdef CONFIG_MAC80211_DEBUG
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: RX WEP frame, decrypt "
- "failed\n", rx->dev->name);
-#endif /* CONFIG_MAC80211_DEBUG */
- return RX_DROP_UNUSABLE;
- }
- } else if (!(rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED)) {
- ieee80211_wep_remove_iv(rx->local, rx->skb, rx->key);
- /* remove ICV */
- skb_trim(rx->skb, rx->skb->len - 4);
- }
-
- return RX_CONTINUE;
-}
-
-static int wep_encrypt_skb(struct ieee80211_txrx_data *tx, struct sk_buff *skb)
-{
- if (!(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) {
- if (ieee80211_wep_encrypt(tx->local, skb, tx->key))
- return -1;
- } else {
- tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
- if (tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) {
- if (!ieee80211_wep_add_iv(tx->local, skb, tx->key))
- return -1;
- }
- }
- return 0;
-}
-
-ieee80211_tx_result
-ieee80211_crypto_wep_encrypt(struct ieee80211_txrx_data *tx)
-{
- tx->u.tx.control->iv_len = WEP_IV_LEN;
- tx->u.tx.control->icv_len = WEP_ICV_LEN;
- ieee80211_tx_set_iswep(tx);
-
- if (wep_encrypt_skb(tx, tx->skb) < 0) {
- I802_DEBUG_INC(tx->local->tx_handlers_drop_wep);
- return TX_DROP;
- }
-
- if (tx->u.tx.extra_frag) {
- int i;
- for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
- if (wep_encrypt_skb(tx, tx->u.tx.extra_frag[i]) < 0) {
- I802_DEBUG_INC(tx->local->
- tx_handlers_drop_wep);
- return TX_DROP;
- }
- }
- }
-
- return TX_CONTINUE;
-}
+++ /dev/null
-/*
- * Software WEP encryption implementation
- * Copyright 2002, Jouni Malinen <jkmaline@cc.hut.fi>
- * Copyright 2003, Instant802 Networks, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef WEP_H
-#define WEP_H
-
-#include <linux/skbuff.h>
-#include <linux/types.h>
-#include "ieee80211_i.h"
-#include "ieee80211_key.h"
-
-int ieee80211_wep_init(struct ieee80211_local *local);
-void ieee80211_wep_free(struct ieee80211_local *local);
-void ieee80211_wep_encrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
- size_t klen, u8 *data, size_t data_len);
-int ieee80211_wep_decrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
- size_t klen, u8 *data, size_t data_len);
-int ieee80211_wep_encrypt(struct ieee80211_local *local, struct sk_buff *skb,
- struct ieee80211_key *key);
-int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb,
- struct ieee80211_key *key);
-u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key);
-
-ieee80211_rx_result
-ieee80211_crypto_wep_decrypt(struct ieee80211_txrx_data *rx);
-ieee80211_tx_result
-ieee80211_crypto_wep_encrypt(struct ieee80211_txrx_data *tx);
-
-#endif /* WEP_H */
+++ /dev/null
-/*
- * Copyright 2004, Instant802 Networks, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/netdevice.h>
-#include <linux/skbuff.h>
-#include <linux/module.h>
-#include <linux/if_arp.h>
-#include <linux/types.h>
-#include <net/ip.h>
-#include <net/pkt_sched.h>
-
-#include <net/mac80211.h>
-#include "ieee80211_i.h"
-#include "wme.h"
-
-/* maximum number of hardware queues we support. */
-#define TC_80211_MAX_QUEUES 16
-
-const int ieee802_1d_to_ac[8] = { 2, 3, 3, 2, 1, 1, 0, 0 };
-
-struct ieee80211_sched_data
-{
- unsigned long qdisc_pool;
- struct tcf_proto *filter_list;
- struct Qdisc *queues[TC_80211_MAX_QUEUES];
- struct sk_buff_head requeued[TC_80211_MAX_QUEUES];
-};
-
-static const char llc_ip_hdr[8] = {0xAA, 0xAA, 0x3, 0, 0, 0, 0x08, 0};
-
-/* given a data frame determine the 802.1p/1d tag to use */
-static inline unsigned classify_1d(struct sk_buff *skb, struct Qdisc *qd)
-{
- struct iphdr *ip;
- int dscp;
- int offset;
-
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct tcf_result res = { -1, 0 };
-
- /* if there is a user set filter list, call out to that */
- if (q->filter_list) {
- tc_classify(skb, q->filter_list, &res);
- if (res.class != -1)
- return res.class;
- }
-
- /* skb->priority values from 256->263 are magic values to
- * directly indicate a specific 802.1d priority.
- * This is used to allow 802.1d priority to be passed directly in
- * from VLAN tags, etc. */
- if (skb->priority >= 256 && skb->priority <= 263)
- return skb->priority - 256;
-
- /* check there is a valid IP header present */
- offset = ieee80211_get_hdrlen_from_skb(skb);
- if (skb->len < offset + sizeof(llc_ip_hdr) + sizeof(*ip) ||
- memcmp(skb->data + offset, llc_ip_hdr, sizeof(llc_ip_hdr)))
- return 0;
-
- ip = (struct iphdr *) (skb->data + offset + sizeof(llc_ip_hdr));
-
- dscp = ip->tos & 0xfc;
- if (dscp & 0x1c)
- return 0;
- return dscp >> 5;
-}
-
-
-static inline int wme_downgrade_ac(struct sk_buff *skb)
-{
- switch (skb->priority) {
- case 6:
- case 7:
- skb->priority = 5; /* VO -> VI */
- return 0;
- case 4:
- case 5:
- skb->priority = 3; /* VI -> BE */
- return 0;
- case 0:
- case 3:
- skb->priority = 2; /* BE -> BK */
- return 0;
- default:
- return -1;
- }
-}
-
-
-/* positive return value indicates which queue to use
- * negative return value indicates to drop the frame */
-static inline int classify80211(struct sk_buff *skb, struct Qdisc *qd)
-{
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- unsigned short fc = le16_to_cpu(hdr->frame_control);
- int qos;
-
- /* see if frame is data or non data frame */
- if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)) {
- /* management frames go on AC_VO queue, but are sent
- * without QoS control fields */
- return IEEE80211_TX_QUEUE_DATA0;
- }
-
- if (0 /* injected */) {
- /* use AC from radiotap */
- }
-
- /* is this a QoS frame? */
- qos = fc & IEEE80211_STYPE_QOS_DATA;
-
- if (!qos) {
- skb->priority = 0; /* required for correct WPA/11i MIC */
- return ieee802_1d_to_ac[skb->priority];
- }
-
- /* use the data classifier to determine what 802.1d tag the
- * data frame has */
- skb->priority = classify_1d(skb, qd);
-
- /* in case we are a client verify acm is not set for this ac */
- while (unlikely(local->wmm_acm & BIT(skb->priority))) {
- if (wme_downgrade_ac(skb)) {
- /* No AC with lower priority has acm=0, drop packet. */
- return -1;
- }
- }
-
- /* look up which queue to use for frames with this 1d tag */
- return ieee802_1d_to_ac[skb->priority];
-}
-
-
-static int wme_qdiscop_enqueue(struct sk_buff *skb, struct Qdisc* qd)
-{
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_tx_packet_data *pkt_data =
- (struct ieee80211_tx_packet_data *) skb->cb;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- unsigned short fc = le16_to_cpu(hdr->frame_control);
- struct Qdisc *qdisc;
- int err, queue;
- struct sta_info *sta;
- u8 tid;
-
- if (pkt_data->flags & IEEE80211_TXPD_REQUEUE) {
- queue = pkt_data->queue;
- sta = sta_info_get(local, hdr->addr1);
- tid = skb->priority & QOS_CONTROL_TAG1D_MASK;
- if (sta) {
- int ampdu_queue = sta->tid_to_tx_q[tid];
- if ((ampdu_queue < local->hw.queues) &&
- test_bit(ampdu_queue, &q->qdisc_pool)) {
- queue = ampdu_queue;
- pkt_data->flags |= IEEE80211_TXPD_AMPDU;
- } else {
- pkt_data->flags &= ~IEEE80211_TXPD_AMPDU;
- }
- sta_info_put(sta);
- }
- skb_queue_tail(&q->requeued[queue], skb);
- qd->q.qlen++;
- return 0;
- }
-
- queue = classify80211(skb, qd);
-
- /* now we know the 1d priority, fill in the QoS header if there is one
- */
- if (WLAN_FC_IS_QOS_DATA(fc)) {
- u8 *p = skb->data + ieee80211_get_hdrlen(fc) - 2;
- u8 ack_policy = 0;
- tid = skb->priority & QOS_CONTROL_TAG1D_MASK;
- if (local->wifi_wme_noack_test)
- ack_policy |= QOS_CONTROL_ACK_POLICY_NOACK <<
- QOS_CONTROL_ACK_POLICY_SHIFT;
- /* qos header is 2 bytes, second reserved */
- *p = ack_policy | tid;
- p++;
- *p = 0;
-
- sta = sta_info_get(local, hdr->addr1);
- if (sta) {
- int ampdu_queue = sta->tid_to_tx_q[tid];
- if ((ampdu_queue < local->hw.queues) &&
- test_bit(ampdu_queue, &q->qdisc_pool)) {
- queue = ampdu_queue;
- pkt_data->flags |= IEEE80211_TXPD_AMPDU;
- } else {
- pkt_data->flags &= ~IEEE80211_TXPD_AMPDU;
- }
- sta_info_put(sta);
- }
- }
-
- if (unlikely(queue >= local->hw.queues)) {
-#if 0
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s - queue=%d (hw does not "
- "support) -> %d\n",
- __func__, queue, local->hw.queues - 1);
- }
-#endif
- queue = local->hw.queues - 1;
- }
-
- if (unlikely(queue < 0)) {
- kfree_skb(skb);
- err = NET_XMIT_DROP;
- } else {
- tid = skb->priority & QOS_CONTROL_TAG1D_MASK;
- pkt_data->queue = (unsigned int) queue;
- qdisc = q->queues[queue];
- err = qdisc->enqueue(skb, qdisc);
- if (err == NET_XMIT_SUCCESS) {
- qd->q.qlen++;
- qd->bstats.bytes += skb->len;
- qd->bstats.packets++;
- return NET_XMIT_SUCCESS;
- }
- }
- qd->qstats.drops++;
- return err;
-}
-
-
-/* TODO: clean up the cases where master_hard_start_xmit
- * returns non 0 - it shouldn't ever do that. Once done we
- * can remove this function */
-static int wme_qdiscop_requeue(struct sk_buff *skb, struct Qdisc* qd)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_tx_packet_data *pkt_data =
- (struct ieee80211_tx_packet_data *) skb->cb;
- struct Qdisc *qdisc;
- int err;
-
- /* we recorded which queue to use earlier! */
- qdisc = q->queues[pkt_data->queue];
-
- if ((err = qdisc->ops->requeue(skb, qdisc)) == 0) {
- qd->q.qlen++;
- return 0;
- }
- qd->qstats.drops++;
- return err;
-}
-
-
-static struct sk_buff *wme_qdiscop_dequeue(struct Qdisc* qd)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct net_device *dev = qd->dev;
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- struct sk_buff *skb;
- struct Qdisc *qdisc;
- int queue;
-
- /* check all the h/w queues in numeric/priority order */
- for (queue = 0; queue < hw->queues; queue++) {
- /* see if there is room in this hardware queue */
- if ((test_bit(IEEE80211_LINK_STATE_XOFF,
- &local->state[queue])) ||
- (test_bit(IEEE80211_LINK_STATE_PENDING,
- &local->state[queue])) ||
- (!test_bit(queue, &q->qdisc_pool)))
- continue;
-
- /* there is space - try and get a frame */
- skb = skb_dequeue(&q->requeued[queue]);
- if (skb) {
- qd->q.qlen--;
- return skb;
- }
-
- qdisc = q->queues[queue];
- skb = qdisc->dequeue(qdisc);
- if (skb) {
- qd->q.qlen--;
- return skb;
- }
- }
- /* returning a NULL here when all the h/w queues are full means we
- * never need to call netif_stop_queue in the driver */
- return NULL;
-}
-
-
-static void wme_qdiscop_reset(struct Qdisc* qd)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- int queue;
-
- /* QUESTION: should we have some hardware flush functionality here? */
-
- for (queue = 0; queue < hw->queues; queue++) {
- skb_queue_purge(&q->requeued[queue]);
- qdisc_reset(q->queues[queue]);
- }
- qd->q.qlen = 0;
-}
-
-
-static void wme_qdiscop_destroy(struct Qdisc* qd)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- int queue;
-
- tcf_destroy_chain(q->filter_list);
- q->filter_list = NULL;
-
- for (queue=0; queue < hw->queues; queue++) {
- skb_queue_purge(&q->requeued[queue]);
- qdisc_destroy(q->queues[queue]);
- q->queues[queue] = &noop_qdisc;
- }
-}
-
-
-/* called whenever parameters are updated on existing qdisc */
-static int wme_qdiscop_tune(struct Qdisc *qd, struct rtattr *opt)
-{
-/* struct ieee80211_sched_data *q = qdisc_priv(qd);
-*/
- /* check our options block is the right size */
- /* copy any options to our local structure */
-/* Ignore options block for now - always use static mapping
- struct tc_ieee80211_qopt *qopt = RTA_DATA(opt);
-
- if (opt->rta_len < RTA_LENGTH(sizeof(*qopt)))
- return -EINVAL;
- memcpy(q->tag2queue, qopt->tag2queue, sizeof(qopt->tag2queue));
-*/
- return 0;
-}
-
-
-/* called during initial creation of qdisc on device */
-static int wme_qdiscop_init(struct Qdisc *qd, struct rtattr *opt)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct net_device *dev = qd->dev;
- struct ieee80211_local *local;
- int queues;
- int err = 0, i;
-
- /* check that device is a mac80211 device */
- if (!dev->ieee80211_ptr ||
- dev->ieee80211_ptr->wiphy->privid != mac80211_wiphy_privid)
- return -EINVAL;
-
- /* check this device is an ieee80211 master type device */
- if (dev->type != ARPHRD_IEEE80211)
- return -EINVAL;
-
- /* check that there is no qdisc currently attached to device
- * this ensures that we will be the root qdisc. (I can't find a better
- * way to test this explicitly) */
- if (dev->qdisc_sleeping != &noop_qdisc)
- return -EINVAL;
-
- if (qd->flags & TCQ_F_INGRESS)
- return -EINVAL;
-
- local = wdev_priv(dev->ieee80211_ptr);
- queues = local->hw.queues;
-
- /* if options were passed in, set them */
- if (opt) {
- err = wme_qdiscop_tune(qd, opt);
- }
-
- /* create child queues */
- for (i = 0; i < queues; i++) {
- skb_queue_head_init(&q->requeued[i]);
- q->queues[i] = qdisc_create_dflt(qd->dev, &pfifo_qdisc_ops,
- qd->handle);
- if (!q->queues[i]) {
- q->queues[i] = &noop_qdisc;
- printk(KERN_ERR "%s child qdisc %i creation failed", dev->name, i);
- }
- }
-
- /* reserve all legacy QoS queues */
- for (i = 0; i < min(IEEE80211_TX_QUEUE_DATA4, queues); i++)
- set_bit(i, &q->qdisc_pool);
-
- return err;
-}
-
-static int wme_qdiscop_dump(struct Qdisc *qd, struct sk_buff *skb)
-{
-/* struct ieee80211_sched_data *q = qdisc_priv(qd);
- unsigned char *p = skb->tail;
- struct tc_ieee80211_qopt opt;
-
- memcpy(&opt.tag2queue, q->tag2queue, TC_80211_MAX_TAG + 1);
- RTA_PUT(skb, TCA_OPTIONS, sizeof(opt), &opt);
-*/ return skb->len;
-/*
-rtattr_failure:
- skb_trim(skb, p - skb->data);*/
- return -1;
-}
-
-
-static int wme_classop_graft(struct Qdisc *qd, unsigned long arg,
- struct Qdisc *new, struct Qdisc **old)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- unsigned long queue = arg - 1;
-
- if (queue >= hw->queues)
- return -EINVAL;
-
- if (!new)
- new = &noop_qdisc;
-
- sch_tree_lock(qd);
- *old = q->queues[queue];
- q->queues[queue] = new;
- qdisc_reset(*old);
- sch_tree_unlock(qd);
-
- return 0;
-}
-
-
-static struct Qdisc *
-wme_classop_leaf(struct Qdisc *qd, unsigned long arg)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- unsigned long queue = arg - 1;
-
- if (queue >= hw->queues)
- return NULL;
-
- return q->queues[queue];
-}
-
-
-static unsigned long wme_classop_get(struct Qdisc *qd, u32 classid)
-{
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- unsigned long queue = TC_H_MIN(classid);
-
- if (queue - 1 >= hw->queues)
- return 0;
-
- return queue;
-}
-
-
-static unsigned long wme_classop_bind(struct Qdisc *qd, unsigned long parent,
- u32 classid)
-{
- return wme_classop_get(qd, classid);
-}
-
-
-static void wme_classop_put(struct Qdisc *q, unsigned long cl)
-{
-}
-
-
-static int wme_classop_change(struct Qdisc *qd, u32 handle, u32 parent,
- struct rtattr **tca, unsigned long *arg)
-{
- unsigned long cl = *arg;
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
-
- if (cl - 1 > hw->queues)
- return -ENOENT;
-
- /* TODO: put code to program hardware queue parameters here,
- * to allow programming from tc command line */
-
- return 0;
-}
-
-
-/* we don't support deleting hardware queues
- * when we add WMM-SA support - TSPECs may be deleted here */
-static int wme_classop_delete(struct Qdisc *qd, unsigned long cl)
-{
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
-
- if (cl - 1 > hw->queues)
- return -ENOENT;
- return 0;
-}
-
-
-static int wme_classop_dump_class(struct Qdisc *qd, unsigned long cl,
- struct sk_buff *skb, struct tcmsg *tcm)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
-
- if (cl - 1 > hw->queues)
- return -ENOENT;
- tcm->tcm_handle = TC_H_MIN(cl);
- tcm->tcm_parent = qd->handle;
- tcm->tcm_info = q->queues[cl-1]->handle; /* do we need this? */
- return 0;
-}
-
-
-static void wme_classop_walk(struct Qdisc *qd, struct qdisc_walker *arg)
-{
- struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
- struct ieee80211_hw *hw = &local->hw;
- int queue;
-
- if (arg->stop)
- return;
-
- for (queue = 0; queue < hw->queues; queue++) {
- if (arg->count < arg->skip) {
- arg->count++;
- continue;
- }
- /* we should return classids for our internal queues here
- * as well as the external ones */
- if (arg->fn(qd, queue+1, arg) < 0) {
- arg->stop = 1;
- break;
- }
- arg->count++;
- }
-}
-
-
-static struct tcf_proto ** wme_classop_find_tcf(struct Qdisc *qd,
- unsigned long cl)
-{
- struct ieee80211_sched_data *q = qdisc_priv(qd);
-
- if (cl)
- return NULL;
-
- return &q->filter_list;
-}
-
-
-/* this qdisc is classful (i.e. has classes, some of which may have leaf qdiscs attached)
- * - these are the operations on the classes */
-static struct Qdisc_class_ops class_ops =
-{
- .graft = wme_classop_graft,
- .leaf = wme_classop_leaf,
-
- .get = wme_classop_get,
- .put = wme_classop_put,
- .change = wme_classop_change,
- .delete = wme_classop_delete,
- .walk = wme_classop_walk,
-
- .tcf_chain = wme_classop_find_tcf,
- .bind_tcf = wme_classop_bind,
- .unbind_tcf = wme_classop_put,
-
- .dump = wme_classop_dump_class,
-};
-
-
-/* queueing discipline operations */
-static struct Qdisc_ops wme_qdisc_ops =
-{
- .next = NULL,
- .cl_ops = &class_ops,
- .id = "ieee80211",
- .priv_size = sizeof(struct ieee80211_sched_data),
-
- .enqueue = wme_qdiscop_enqueue,
- .dequeue = wme_qdiscop_dequeue,
- .requeue = wme_qdiscop_requeue,
- .drop = NULL, /* drop not needed since we are always the root qdisc */
-
- .init = wme_qdiscop_init,
- .reset = wme_qdiscop_reset,
- .destroy = wme_qdiscop_destroy,
- .change = wme_qdiscop_tune,
-
- .dump = wme_qdiscop_dump,
-};
-
-
-void ieee80211_install_qdisc(struct net_device *dev)
-{
- struct Qdisc *qdisc;
-
- qdisc = qdisc_create_dflt(dev, &wme_qdisc_ops, TC_H_ROOT);
- if (!qdisc) {
- printk(KERN_ERR "%s: qdisc installation failed\n", dev->name);
- return;
- }
-
- /* same handle as would be allocated by qdisc_alloc_handle() */
- qdisc->handle = 0x80010000;
-
- qdisc_lock_tree(dev);
- list_add_tail(&qdisc->list, &dev->qdisc_list);
- dev->qdisc_sleeping = qdisc;
- qdisc_unlock_tree(dev);
-}
-
-
-int ieee80211_qdisc_installed(struct net_device *dev)
-{
- return dev->qdisc_sleeping->ops == &wme_qdisc_ops;
-}
-
-
-int ieee80211_wme_register(void)
-{
- return register_qdisc(&wme_qdisc_ops);
-}
-
-
-void ieee80211_wme_unregister(void)
-{
- unregister_qdisc(&wme_qdisc_ops);
-}
-
-int ieee80211_ht_agg_queue_add(struct ieee80211_local *local,
- struct sta_info *sta, u16 tid)
-{
- int i;
- struct ieee80211_sched_data *q =
- qdisc_priv(local->mdev->qdisc_sleeping);
- DECLARE_MAC_BUF(mac);
-
- /* prepare the filter and save it for the SW queue
- * matching the recieved HW queue */
-
- /* try to get a Qdisc from the pool */
- for (i = IEEE80211_TX_QUEUE_BEACON; i < local->hw.queues; i++)
- if (!test_and_set_bit(i, &q->qdisc_pool)) {
- ieee80211_stop_queue(local_to_hw(local), i);
- sta->tid_to_tx_q[tid] = i;
-
- /* IF there are already pending packets
- * on this tid first we need to drain them
- * on the previous queue
- * since HT is strict in order */
-#ifdef CONFIG_MAC80211_HT_DEBUG
- if (net_ratelimit())
- printk(KERN_DEBUG "allocated aggregation queue"
- " %d tid %d addr %s pool=0x%lX\n",
- i, tid, print_mac(mac, sta->addr),
- q->qdisc_pool);
-#endif /* CONFIG_MAC80211_HT_DEBUG */
- return 0;
- }
-
- return -EAGAIN;
-}
-
-/**
- * the caller needs to hold local->mdev->queue_lock
- */
-void ieee80211_ht_agg_queue_remove(struct ieee80211_local *local,
- struct sta_info *sta, u16 tid,
- u8 requeue)
-{
- struct ieee80211_sched_data *q =
- qdisc_priv(local->mdev->qdisc_sleeping);
- int agg_queue = sta->tid_to_tx_q[tid];
-
- /* return the qdisc to the pool */
- clear_bit(agg_queue, &q->qdisc_pool);
- sta->tid_to_tx_q[tid] = local->hw.queues;
-
- if (requeue)
- ieee80211_requeue(local, agg_queue);
- else
- q->queues[agg_queue]->ops->reset(q->queues[agg_queue]);
-}
-
-void ieee80211_requeue(struct ieee80211_local *local, int queue)
-{
- struct Qdisc *root_qd = local->mdev->qdisc_sleeping;
- struct ieee80211_sched_data *q = qdisc_priv(root_qd);
- struct Qdisc *qdisc = q->queues[queue];
- struct sk_buff *skb = NULL;
- u32 len = qdisc->q.qlen;
-
- if (!qdisc || !qdisc->dequeue)
- return;
-
- printk(KERN_DEBUG "requeue: qlen = %d\n", qdisc->q.qlen);
- for (len = qdisc->q.qlen; len > 0; len--) {
- skb = qdisc->dequeue(qdisc);
- root_qd->q.qlen--;
- /* packet will be classified again and */
- /* skb->packet_data->queue will be overridden if needed */
- if (skb)
- wme_qdiscop_enqueue(skb, root_qd);
- }
-}
+++ /dev/null
-/*
- * IEEE 802.11 driver (80211.o) - QoS datatypes
- * Copyright 2004, Instant802 Networks, Inc.
- * Copyright 2005, Devicescape Software, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef _WME_H
-#define _WME_H
-
-#include <linux/netdevice.h>
-#include "ieee80211_i.h"
-
-#define QOS_CONTROL_LEN 2
-
-#define QOS_CONTROL_ACK_POLICY_NORMAL 0
-#define QOS_CONTROL_ACK_POLICY_NOACK 1
-
-#define QOS_CONTROL_TID_MASK 0x0f
-#define QOS_CONTROL_ACK_POLICY_SHIFT 5
-
-#define QOS_CONTROL_TAG1D_MASK 0x07
-
-extern const int ieee802_1d_to_ac[8];
-
-static inline int WLAN_FC_IS_QOS_DATA(u16 fc)
-{
- return (fc & 0x8C) == 0x88;
-}
-
-#ifdef CONFIG_NET_SCHED
-void ieee80211_install_qdisc(struct net_device *dev);
-int ieee80211_qdisc_installed(struct net_device *dev);
-int ieee80211_ht_agg_queue_add(struct ieee80211_local *local,
- struct sta_info *sta, u16 tid);
-void ieee80211_ht_agg_queue_remove(struct ieee80211_local *local,
- struct sta_info *sta, u16 tid,
- u8 requeue);
-void ieee80211_requeue(struct ieee80211_local *local, int queue);
-int ieee80211_wme_register(void);
-void ieee80211_wme_unregister(void);
-#else
-static inline void ieee80211_install_qdisc(struct net_device *dev)
-{
-}
-static inline int ieee80211_qdisc_installed(struct net_device *dev)
-{
- return 0;
-}
-static inline int ieee80211_ht_agg_queue_add(struct ieee80211_local *local,
- struct sta_info *sta, u16 tid)
-{
- return -EAGAIN;
-}
-static inline void ieee80211_ht_agg_queue_remove(struct ieee80211_local *local,
- struct sta_info *sta, u16 tid,
- u8 requeue)
-{
-}
-static inline void ieee80211_requeue(struct ieee80211_local *local, int queue)
-{
-}
-static inline int ieee80211_wme_register(void)
-{
- return 0;
-}
-static inline void ieee80211_wme_unregister(void)
-{
-}
-#endif /* CONFIG_NET_SCHED */
-
-#endif /* _WME_H */
+++ /dev/null
-/*
- * Copyright 2002-2004, Instant802 Networks, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-#include <linux/compiler.h>
-#include <net/mac80211.h>
-
-#include "ieee80211_i.h"
-#include "michael.h"
-#include "tkip.h"
-#include "aes_ccm.h"
-#include "wpa.h"
-
-static int ieee80211_get_hdr_info(const struct sk_buff *skb, u8 **sa, u8 **da,
- u8 *qos_tid, u8 **data, size_t *data_len)
-{
- struct ieee80211_hdr *hdr;
- size_t hdrlen;
- u16 fc;
- int a4_included;
- u8 *pos;
-
- hdr = (struct ieee80211_hdr *) skb->data;
- fc = le16_to_cpu(hdr->frame_control);
-
- hdrlen = 24;
- if ((fc & (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) ==
- (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
- hdrlen += ETH_ALEN;
- *sa = hdr->addr4;
- *da = hdr->addr3;
- } else if (fc & IEEE80211_FCTL_FROMDS) {
- *sa = hdr->addr3;
- *da = hdr->addr1;
- } else if (fc & IEEE80211_FCTL_TODS) {
- *sa = hdr->addr2;
- *da = hdr->addr3;
- } else {
- *sa = hdr->addr2;
- *da = hdr->addr1;
- }
-
- if (fc & 0x80)
- hdrlen += 2;
-
- *data = skb->data + hdrlen;
- *data_len = skb->len - hdrlen;
-
- a4_included = (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
- (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
- if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
- fc & IEEE80211_STYPE_QOS_DATA) {
- pos = (u8 *) &hdr->addr4;
- if (a4_included)
- pos += 6;
- *qos_tid = pos[0] & 0x0f;
- *qos_tid |= 0x80; /* qos_included flag */
- } else
- *qos_tid = 0;
-
- return skb->len < hdrlen ? -1 : 0;
-}
-
-
-ieee80211_tx_result
-ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx)
-{
- u8 *data, *sa, *da, *key, *mic, qos_tid;
- size_t data_len;
- u16 fc;
- struct sk_buff *skb = tx->skb;
- int authenticator;
- int wpa_test = 0;
-
- fc = tx->fc;
-
- if (!tx->key || tx->key->conf.alg != ALG_TKIP || skb->len < 24 ||
- !WLAN_FC_DATA_PRESENT(fc))
- return TX_CONTINUE;
-
- if (ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len))
- return TX_DROP;
-
- if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) &&
- !(tx->flags & IEEE80211_TXRXD_FRAGMENTED) &&
- !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) &&
- !wpa_test) {
- /* hwaccel - with no need for preallocated room for Michael MIC
- */
- return TX_CONTINUE;
- }
-
- if (skb_tailroom(skb) < MICHAEL_MIC_LEN) {
- I802_DEBUG_INC(tx->local->tx_expand_skb_head);
- if (unlikely(pskb_expand_head(skb, TKIP_IV_LEN,
- MICHAEL_MIC_LEN + TKIP_ICV_LEN,
- GFP_ATOMIC))) {
- printk(KERN_DEBUG "%s: failed to allocate more memory "
- "for Michael MIC\n", tx->dev->name);
- return TX_DROP;
- }
- }
-
-#if 0
- authenticator = fc & IEEE80211_FCTL_FROMDS; /* FIX */
-#else
- authenticator = 1;
-#endif
- key = &tx->key->conf.key[authenticator ? ALG_TKIP_TEMP_AUTH_TX_MIC_KEY :
- ALG_TKIP_TEMP_AUTH_RX_MIC_KEY];
- mic = skb_put(skb, MICHAEL_MIC_LEN);
- michael_mic(key, da, sa, qos_tid & 0x0f, data, data_len, mic);
-
- return TX_CONTINUE;
-}
-
-
-ieee80211_rx_result
-ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx)
-{
- u8 *data, *sa, *da, *key = NULL, qos_tid;
- size_t data_len;
- u16 fc;
- u8 mic[MICHAEL_MIC_LEN];
- struct sk_buff *skb = rx->skb;
- int authenticator = 1, wpa_test = 0;
- DECLARE_MAC_BUF(mac);
-
- fc = rx->fc;
-
- /*
- * No way to verify the MIC if the hardware stripped it
- */
- if (rx->u.rx.status->flag & RX_FLAG_MMIC_STRIPPED)
- return RX_CONTINUE;
-
- if (!rx->key || rx->key->conf.alg != ALG_TKIP ||
- !(rx->fc & IEEE80211_FCTL_PROTECTED) || !WLAN_FC_DATA_PRESENT(fc))
- return RX_CONTINUE;
-
- if (ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len)
- || data_len < MICHAEL_MIC_LEN)
- return RX_DROP_UNUSABLE;
-
- data_len -= MICHAEL_MIC_LEN;
-
-#if 0
- authenticator = fc & IEEE80211_FCTL_TODS; /* FIX */
-#else
- authenticator = 1;
-#endif
- key = &rx->key->conf.key[authenticator ? ALG_TKIP_TEMP_AUTH_RX_MIC_KEY :
- ALG_TKIP_TEMP_AUTH_TX_MIC_KEY];
- michael_mic(key, da, sa, qos_tid & 0x0f, data, data_len, mic);
- if (memcmp(mic, data + data_len, MICHAEL_MIC_LEN) != 0 || wpa_test) {
- if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
- return RX_DROP_UNUSABLE;
-
- printk(KERN_DEBUG "%s: invalid Michael MIC in data frame from "
- "%s\n", rx->dev->name, print_mac(mac, sa));
-
- mac80211_ev_michael_mic_failure(rx->dev, rx->key->conf.keyidx,
- (void *) skb->data);
- return RX_DROP_UNUSABLE;
- }
-
- /* remove Michael MIC from payload */
- skb_trim(skb, skb->len - MICHAEL_MIC_LEN);
-
- /* update IV in key information to be able to detect replays */
- rx->key->u.tkip.iv32_rx[rx->u.rx.queue] = rx->u.rx.tkip_iv32;
- rx->key->u.tkip.iv16_rx[rx->u.rx.queue] = rx->u.rx.tkip_iv16;
-
- return RX_CONTINUE;
-}
-
-
-static int tkip_encrypt_skb(struct ieee80211_txrx_data *tx,
- struct sk_buff *skb, int test)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct ieee80211_key *key = tx->key;
- int hdrlen, len, tailneed;
- u16 fc;
- u8 *pos;
-
- fc = le16_to_cpu(hdr->frame_control);
- hdrlen = ieee80211_get_hdrlen(fc);
- len = skb->len - hdrlen;
-
- if (tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
- tailneed = 0;
- else
- tailneed = TKIP_ICV_LEN;
-
- if ((skb_headroom(skb) < TKIP_IV_LEN ||
- skb_tailroom(skb) < tailneed)) {
- I802_DEBUG_INC(tx->local->tx_expand_skb_head);
- if (unlikely(pskb_expand_head(skb, TKIP_IV_LEN, tailneed,
- GFP_ATOMIC)))
- return -1;
- }
-
- pos = skb_push(skb, TKIP_IV_LEN);
- memmove(pos, pos + TKIP_IV_LEN, hdrlen);
- pos += hdrlen;
-
- /* Increase IV for the frame */
- key->u.tkip.iv16++;
- if (key->u.tkip.iv16 == 0)
- key->u.tkip.iv32++;
-
- if (tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
- hdr = (struct ieee80211_hdr *)skb->data;
-
- /* hwaccel - with preallocated room for IV */
- ieee80211_tkip_add_iv(pos, key,
- (u8) (key->u.tkip.iv16 >> 8),
- (u8) (((key->u.tkip.iv16 >> 8) | 0x20) &
- 0x7f),
- (u8) key->u.tkip.iv16);
-
- tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
- return 0;
- }
-
- /* Add room for ICV */
- skb_put(skb, TKIP_ICV_LEN);
-
- hdr = (struct ieee80211_hdr *) skb->data;
- ieee80211_tkip_encrypt_data(tx->local->wep_tx_tfm,
- key, pos, len, hdr->addr2);
- return 0;
-}
-
-
-ieee80211_tx_result
-ieee80211_crypto_tkip_encrypt(struct ieee80211_txrx_data *tx)
-{
- struct sk_buff *skb = tx->skb;
- int wpa_test = 0, test = 0;
-
- tx->u.tx.control->icv_len = TKIP_ICV_LEN;
- tx->u.tx.control->iv_len = TKIP_IV_LEN;
- ieee80211_tx_set_iswep(tx);
-
- if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) &&
- !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) &&
- !wpa_test) {
- /* hwaccel - with no need for preallocated room for IV/ICV */
- tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
- return TX_CONTINUE;
- }
-
- if (tkip_encrypt_skb(tx, skb, test) < 0)
- return TX_DROP;
-
- if (tx->u.tx.extra_frag) {
- int i;
- for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
- if (tkip_encrypt_skb(tx, tx->u.tx.extra_frag[i], test)
- < 0)
- return TX_DROP;
- }
- }
-
- return TX_CONTINUE;
-}
-
-
-ieee80211_rx_result
-ieee80211_crypto_tkip_decrypt(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
- u16 fc;
- int hdrlen, res, hwaccel = 0, wpa_test = 0;
- struct ieee80211_key *key = rx->key;
- struct sk_buff *skb = rx->skb;
- DECLARE_MAC_BUF(mac);
-
- fc = le16_to_cpu(hdr->frame_control);
- hdrlen = ieee80211_get_hdrlen(fc);
-
- if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
- return RX_CONTINUE;
-
- if (!rx->sta || skb->len - hdrlen < 12)
- return RX_DROP_UNUSABLE;
-
- if (rx->u.rx.status->flag & RX_FLAG_DECRYPTED) {
- if (rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED) {
- /*
- * Hardware took care of all processing, including
- * replay protection, and stripped the ICV/IV so
- * we cannot do any checks here.
- */
- return RX_CONTINUE;
- }
-
- /* let TKIP code verify IV, but skip decryption */
- hwaccel = 1;
- }
-
- res = ieee80211_tkip_decrypt_data(rx->local->wep_rx_tfm,
- key, skb->data + hdrlen,
- skb->len - hdrlen, rx->sta->addr,
- hwaccel, rx->u.rx.queue,
- &rx->u.rx.tkip_iv32,
- &rx->u.rx.tkip_iv16);
- if (res != TKIP_DECRYPT_OK || wpa_test) {
-#ifdef CONFIG_MAC80211_DEBUG
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: TKIP decrypt failed for RX "
- "frame from %s (res=%d)\n", rx->dev->name,
- print_mac(mac, rx->sta->addr), res);
-#endif /* CONFIG_MAC80211_DEBUG */
- return RX_DROP_UNUSABLE;
- }
-
- /* Trim ICV */
- skb_trim(skb, skb->len - TKIP_ICV_LEN);
-
- /* Remove IV */
- memmove(skb->data + TKIP_IV_LEN, skb->data, hdrlen);
- skb_pull(skb, TKIP_IV_LEN);
-
- return RX_CONTINUE;
-}
-
-
-static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *b_0, u8 *aad,
- int encrypted)
-{
- u16 fc;
- int a4_included, qos_included;
- u8 qos_tid, *fc_pos, *data, *sa, *da;
- int len_a;
- size_t data_len;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-
- fc_pos = (u8 *) &hdr->frame_control;
- fc = fc_pos[0] ^ (fc_pos[1] << 8);
- a4_included = (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
- (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
-
- ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len);
- data_len -= CCMP_HDR_LEN + (encrypted ? CCMP_MIC_LEN : 0);
- if (qos_tid & 0x80) {
- qos_included = 1;
- qos_tid &= 0x0f;
- } else
- qos_included = 0;
- /* First block, b_0 */
-
- b_0[0] = 0x59; /* flags: Adata: 1, M: 011, L: 001 */
- /* Nonce: QoS Priority | A2 | PN */
- b_0[1] = qos_tid;
- memcpy(&b_0[2], hdr->addr2, 6);
- memcpy(&b_0[8], pn, CCMP_PN_LEN);
- /* l(m) */
- b_0[14] = (data_len >> 8) & 0xff;
- b_0[15] = data_len & 0xff;
-
-
- /* AAD (extra authenticate-only data) / masked 802.11 header
- * FC | A1 | A2 | A3 | SC | [A4] | [QC] */
-
- len_a = a4_included ? 28 : 22;
- if (qos_included)
- len_a += 2;
-
- aad[0] = 0; /* (len_a >> 8) & 0xff; */
- aad[1] = len_a & 0xff;
- /* Mask FC: zero subtype b4 b5 b6 */
- aad[2] = fc_pos[0] & ~(BIT(4) | BIT(5) | BIT(6));
- /* Retry, PwrMgt, MoreData; set Protected */
- aad[3] = (fc_pos[1] & ~(BIT(3) | BIT(4) | BIT(5))) | BIT(6);
- memcpy(&aad[4], &hdr->addr1, 18);
-
- /* Mask Seq#, leave Frag# */
- aad[22] = *((u8 *) &hdr->seq_ctrl) & 0x0f;
- aad[23] = 0;
- if (a4_included) {
- memcpy(&aad[24], hdr->addr4, 6);
- aad[30] = 0;
- aad[31] = 0;
- } else
- memset(&aad[24], 0, 8);
- if (qos_included) {
- u8 *dpos = &aad[a4_included ? 30 : 24];
-
- /* Mask QoS Control field */
- dpos[0] = qos_tid;
- dpos[1] = 0;
- }
-}
-
-
-static inline void ccmp_pn2hdr(u8 *hdr, u8 *pn, int key_id)
-{
- hdr[0] = pn[5];
- hdr[1] = pn[4];
- hdr[2] = 0;
- hdr[3] = 0x20 | (key_id << 6);
- hdr[4] = pn[3];
- hdr[5] = pn[2];
- hdr[6] = pn[1];
- hdr[7] = pn[0];
-}
-
-
-static inline int ccmp_hdr2pn(u8 *pn, u8 *hdr)
-{
- pn[0] = hdr[7];
- pn[1] = hdr[6];
- pn[2] = hdr[5];
- pn[3] = hdr[4];
- pn[4] = hdr[1];
- pn[5] = hdr[0];
- return (hdr[3] >> 6) & 0x03;
-}
-
-
-static int ccmp_encrypt_skb(struct ieee80211_txrx_data *tx,
- struct sk_buff *skb, int test)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct ieee80211_key *key = tx->key;
- int hdrlen, len, tailneed;
- u16 fc;
- u8 *pos, *pn, *b_0, *aad, *scratch;
- int i;
-
- scratch = key->u.ccmp.tx_crypto_buf;
- b_0 = scratch + 3 * AES_BLOCK_LEN;
- aad = scratch + 4 * AES_BLOCK_LEN;
-
- fc = le16_to_cpu(hdr->frame_control);
- hdrlen = ieee80211_get_hdrlen(fc);
- len = skb->len - hdrlen;
-
- if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
- tailneed = 0;
- else
- tailneed = CCMP_MIC_LEN;
-
- if ((skb_headroom(skb) < CCMP_HDR_LEN ||
- skb_tailroom(skb) < tailneed)) {
- I802_DEBUG_INC(tx->local->tx_expand_skb_head);
- if (unlikely(pskb_expand_head(skb, CCMP_HDR_LEN, tailneed,
- GFP_ATOMIC)))
- return -1;
- }
-
- pos = skb_push(skb, CCMP_HDR_LEN);
- memmove(pos, pos + CCMP_HDR_LEN, hdrlen);
- hdr = (struct ieee80211_hdr *) pos;
- pos += hdrlen;
-
- /* PN = PN + 1 */
- pn = key->u.ccmp.tx_pn;
-
- for (i = CCMP_PN_LEN - 1; i >= 0; i--) {
- pn[i]++;
- if (pn[i])
- break;
- }
-
- ccmp_pn2hdr(pos, pn, key->conf.keyidx);
-
- if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
- /* hwaccel - with preallocated room for CCMP header */
- tx->u.tx.control->key_idx = key->conf.hw_key_idx;
- return 0;
- }
-
- pos += CCMP_HDR_LEN;
- ccmp_special_blocks(skb, pn, b_0, aad, 0);
- ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, scratch, b_0, aad, pos, len,
- pos, skb_put(skb, CCMP_MIC_LEN));
-
- return 0;
-}
-
-
-ieee80211_tx_result
-ieee80211_crypto_ccmp_encrypt(struct ieee80211_txrx_data *tx)
-{
- struct sk_buff *skb = tx->skb;
- int test = 0;
-
- tx->u.tx.control->icv_len = CCMP_MIC_LEN;
- tx->u.tx.control->iv_len = CCMP_HDR_LEN;
- ieee80211_tx_set_iswep(tx);
-
- if ((tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) &&
- !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
- /* hwaccel - with no need for preallocated room for CCMP "
- * header or MIC fields */
- tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
- return TX_CONTINUE;
- }
-
- if (ccmp_encrypt_skb(tx, skb, test) < 0)
- return TX_DROP;
-
- if (tx->u.tx.extra_frag) {
- int i;
- for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
- if (ccmp_encrypt_skb(tx, tx->u.tx.extra_frag[i], test)
- < 0)
- return TX_DROP;
- }
- }
-
- return TX_CONTINUE;
-}
-
-
-ieee80211_rx_result
-ieee80211_crypto_ccmp_decrypt(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
- u16 fc;
- int hdrlen;
- struct ieee80211_key *key = rx->key;
- struct sk_buff *skb = rx->skb;
- u8 pn[CCMP_PN_LEN];
- int data_len;
- DECLARE_MAC_BUF(mac);
-
- fc = le16_to_cpu(hdr->frame_control);
- hdrlen = ieee80211_get_hdrlen(fc);
-
- if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
- return RX_CONTINUE;
-
- data_len = skb->len - hdrlen - CCMP_HDR_LEN - CCMP_MIC_LEN;
- if (!rx->sta || data_len < 0)
- return RX_DROP_UNUSABLE;
-
- if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
- (rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED))
- return RX_CONTINUE;
-
- (void) ccmp_hdr2pn(pn, skb->data + hdrlen);
-
- if (memcmp(pn, key->u.ccmp.rx_pn[rx->u.rx.queue], CCMP_PN_LEN) <= 0) {
-#ifdef CONFIG_MAC80211_DEBUG
- u8 *ppn = key->u.ccmp.rx_pn[rx->u.rx.queue];
-
- printk(KERN_DEBUG "%s: CCMP replay detected for RX frame from "
- "%s (RX PN %02x%02x%02x%02x%02x%02x <= prev. PN "
- "%02x%02x%02x%02x%02x%02x)\n", rx->dev->name,
- print_mac(mac, rx->sta->addr),
- pn[0], pn[1], pn[2], pn[3], pn[4], pn[5],
- ppn[0], ppn[1], ppn[2], ppn[3], ppn[4], ppn[5]);
-#endif /* CONFIG_MAC80211_DEBUG */
- key->u.ccmp.replays++;
- return RX_DROP_UNUSABLE;
- }
-
- if (!(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) {
- /* hardware didn't decrypt/verify MIC */
- u8 *scratch, *b_0, *aad;
-
- scratch = key->u.ccmp.rx_crypto_buf;
- b_0 = scratch + 3 * AES_BLOCK_LEN;
- aad = scratch + 4 * AES_BLOCK_LEN;
-
- ccmp_special_blocks(skb, pn, b_0, aad, 1);
-
- if (ieee80211_aes_ccm_decrypt(
- key->u.ccmp.tfm, scratch, b_0, aad,
- skb->data + hdrlen + CCMP_HDR_LEN, data_len,
- skb->data + skb->len - CCMP_MIC_LEN,
- skb->data + hdrlen + CCMP_HDR_LEN)) {
-#ifdef CONFIG_MAC80211_DEBUG
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: CCMP decrypt failed "
- "for RX frame from %s\n", rx->dev->name,
- print_mac(mac, rx->sta->addr));
-#endif /* CONFIG_MAC80211_DEBUG */
- return RX_DROP_UNUSABLE;
- }
- }
-
- memcpy(key->u.ccmp.rx_pn[rx->u.rx.queue], pn, CCMP_PN_LEN);
-
- /* Remove CCMP header and MIC */
- skb_trim(skb, skb->len - CCMP_MIC_LEN);
- memmove(skb->data + CCMP_HDR_LEN, skb->data, hdrlen);
- skb_pull(skb, CCMP_HDR_LEN);
-
- return RX_CONTINUE;
-}
+++ /dev/null
-/*
- * Copyright 2002-2004, Instant802 Networks, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef WPA_H
-#define WPA_H
-
-#include <linux/skbuff.h>
-#include <linux/types.h>
-#include "ieee80211_i.h"
-
-ieee80211_tx_result
-ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx);
-ieee80211_rx_result
-ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx);
-
-ieee80211_tx_result
-ieee80211_crypto_tkip_encrypt(struct ieee80211_txrx_data *tx);
-ieee80211_rx_result
-ieee80211_crypto_tkip_decrypt(struct ieee80211_txrx_data *rx);
-
-ieee80211_tx_result
-ieee80211_crypto_ccmp_encrypt(struct ieee80211_txrx_data *tx);
-ieee80211_rx_result
-ieee80211_crypto_ccmp_decrypt(struct ieee80211_txrx_data *rx);
-
-#endif /* WPA_H */
+++ /dev/null
-config CFG80211
- tristate "Improved wireless configuration API"
-
-config NL80211
- bool "nl80211 new netlink interface support"
- depends on CFG80211
- default y
- ---help---
- This option turns on the new netlink interface
- (nl80211) support in cfg80211.
-
- If =n, drivers using mac80211 will be configured via
- wireless extension support provided by that subsystem.
-
- If unsure, say Y.
-
-config WIRELESS_EXT
- bool "Wireless extensions"
- default n
- ---help---
- This option enables the legacy wireless extensions
- (wireless network interface configuration via ioctls.)
-
- Wireless extensions will be replaced by cfg80211 and
- will be required only by legacy drivers that implement
- wireless extension handlers. This option does not
- affect the wireless-extension backward compatibility
- code in cfg80211.
-
- Say N (if you can) unless you know you need wireless
- extensions for external modules.
+++ /dev/null
-obj-$(CONFIG_WIRELESS_EXT) += wext.o
-obj-$(CONFIG_CFG80211) += cfg80211.o
-
-cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o
-cfg80211-$(CONFIG_NL80211) += nl80211.o
+++ /dev/null
-/*
- * This is the linux wireless configuration interface.
- *
- * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
- */
-
-#include <linux/if.h>
-#include <linux/module.h>
-#include <linux/err.h>
-#include <linux/mutex.h>
-#include <linux/list.h>
-#include <linux/nl80211.h>
-#include <linux/debugfs.h>
-#include <linux/notifier.h>
-#include <linux/device.h>
-#include <net/genetlink.h>
-#include <net/cfg80211.h>
-#include <net/wireless.h>
-#include "nl80211.h"
-#include "core.h"
-#include "sysfs.h"
-
-/* name for sysfs, %d is appended */
-#define PHY_NAME "phy"
-
-MODULE_AUTHOR("Johannes Berg");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("wireless configuration support");
-
-/* RCU might be appropriate here since we usually
- * only read the list, and that can happen quite
- * often because we need to do it for each command */
-LIST_HEAD(cfg80211_drv_list);
-DEFINE_MUTEX(cfg80211_drv_mutex);
-static int wiphy_counter;
-
-/* for debugfs */
-static struct dentry *ieee80211_debugfs_dir;
-
-/* requires cfg80211_drv_mutex to be held! */
-static struct cfg80211_registered_device *cfg80211_drv_by_wiphy(int wiphy)
-{
- struct cfg80211_registered_device *result = NULL, *drv;
-
- list_for_each_entry(drv, &cfg80211_drv_list, list) {
- if (drv->idx == wiphy) {
- result = drv;
- break;
- }
- }
-
- return result;
-}
-
-/* requires cfg80211_drv_mutex to be held! */
-static struct cfg80211_registered_device *
-__cfg80211_drv_from_info(struct genl_info *info)
-{
- int ifindex;
- struct cfg80211_registered_device *bywiphy = NULL, *byifidx = NULL;
- struct net_device *dev;
- int err = -EINVAL;
-
- if (info->attrs[NL80211_ATTR_WIPHY]) {
- bywiphy = cfg80211_drv_by_wiphy(
- nla_get_u32(info->attrs[NL80211_ATTR_WIPHY]));
- err = -ENODEV;
- }
-
- if (info->attrs[NL80211_ATTR_IFINDEX]) {
- ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
- dev = dev_get_by_index(&init_net, ifindex);
- if (dev) {
- if (dev->ieee80211_ptr)
- byifidx =
- wiphy_to_dev(dev->ieee80211_ptr->wiphy);
- dev_put(dev);
- }
- err = -ENODEV;
- }
-
- if (bywiphy && byifidx) {
- if (bywiphy != byifidx)
- return ERR_PTR(-EINVAL);
- else
- return bywiphy; /* == byifidx */
- }
- if (bywiphy)
- return bywiphy;
-
- if (byifidx)
- return byifidx;
-
- return ERR_PTR(err);
-}
-
-struct cfg80211_registered_device *
-cfg80211_get_dev_from_info(struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
-
- mutex_lock(&cfg80211_drv_mutex);
- drv = __cfg80211_drv_from_info(info);
-
- /* if it is not an error we grab the lock on
- * it to assure it won't be going away while
- * we operate on it */
- if (!IS_ERR(drv))
- mutex_lock(&drv->mtx);
-
- mutex_unlock(&cfg80211_drv_mutex);
-
- return drv;
-}
-
-struct cfg80211_registered_device *
-cfg80211_get_dev_from_ifindex(int ifindex)
-{
- struct cfg80211_registered_device *drv = ERR_PTR(-ENODEV);
- struct net_device *dev;
-
- mutex_lock(&cfg80211_drv_mutex);
- dev = dev_get_by_index(&init_net, ifindex);
- if (!dev)
- goto out;
- if (dev->ieee80211_ptr) {
- drv = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
- mutex_lock(&drv->mtx);
- } else
- drv = ERR_PTR(-ENODEV);
- dev_put(dev);
- out:
- mutex_unlock(&cfg80211_drv_mutex);
- return drv;
-}
-
-void cfg80211_put_dev(struct cfg80211_registered_device *drv)
-{
- BUG_ON(IS_ERR(drv));
- mutex_unlock(&drv->mtx);
-}
-
-int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
- char *newname)
-{
- int idx, taken = -1, result, digits;
-
- /* prohibit calling the thing phy%d when %d is not its number */
- sscanf(newname, PHY_NAME "%d%n", &idx, &taken);
- if (taken == strlen(newname) && idx != rdev->idx) {
- /* count number of places needed to print idx */
- digits = 1;
- while (idx /= 10)
- digits++;
- /*
- * deny the name if it is phy<idx> where <idx> is printed
- * without leading zeroes. taken == strlen(newname) here
- */
- if (taken == strlen(PHY_NAME) + digits)
- return -EINVAL;
- }
-
- /* this will check for collisions */
- result = device_rename(&rdev->wiphy.dev, newname);
- if (result)
- return result;
-
- if (!debugfs_rename(rdev->wiphy.debugfsdir->d_parent,
- rdev->wiphy.debugfsdir,
- rdev->wiphy.debugfsdir->d_parent,
- newname))
- printk(KERN_ERR "cfg80211: failed to rename debugfs dir to %s!\n",
- newname);
-
- nl80211_notify_dev_rename(rdev);
-
- return 0;
-}
-
-/* exported functions */
-
-struct wiphy *wiphy_new(struct cfg80211_ops *ops, int sizeof_priv)
-{
- struct cfg80211_registered_device *drv;
- int alloc_size;
-
- WARN_ON(!ops->add_key && ops->del_key);
- WARN_ON(ops->add_key && !ops->del_key);
-
- alloc_size = sizeof(*drv) + sizeof_priv;
-
- drv = kzalloc(alloc_size, GFP_KERNEL);
- if (!drv)
- return NULL;
-
- drv->ops = ops;
-
- mutex_lock(&cfg80211_drv_mutex);
-
- drv->idx = wiphy_counter;
-
- /* now increase counter for the next device unless
- * it has wrapped previously */
- if (wiphy_counter >= 0)
- wiphy_counter++;
-
- mutex_unlock(&cfg80211_drv_mutex);
-
- if (unlikely(drv->idx < 0)) {
- /* ugh, wrapped! */
- kfree(drv);
- return NULL;
- }
-
- /* give it a proper name */
- snprintf(drv->wiphy.dev.bus_id, BUS_ID_SIZE,
- PHY_NAME "%d", drv->idx);
-
- mutex_init(&drv->mtx);
- mutex_init(&drv->devlist_mtx);
- INIT_LIST_HEAD(&drv->netdev_list);
-
- device_initialize(&drv->wiphy.dev);
- drv->wiphy.dev.class = &ieee80211_class;
- drv->wiphy.dev.platform_data = drv;
-
- return &drv->wiphy;
-}
-EXPORT_SYMBOL(wiphy_new);
-
-int wiphy_register(struct wiphy *wiphy)
-{
- struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
- int res;
- enum ieee80211_band band;
- struct ieee80211_supported_band *sband;
- bool have_band = false;
- int i;
-
- /* sanity check supported bands/channels */
- for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
- sband = wiphy->bands[band];
- if (!sband)
- continue;
-
- sband->band = band;
-
- if (!sband->n_channels || !sband->n_bitrates) {
- WARN_ON(1);
- return -EINVAL;
- }
-
- for (i = 0; i < sband->n_channels; i++) {
- sband->channels[i].orig_flags =
- sband->channels[i].flags;
- sband->channels[i].orig_mag =
- sband->channels[i].max_antenna_gain;
- sband->channels[i].orig_mpwr =
- sband->channels[i].max_power;
- sband->channels[i].band = band;
- }
-
- have_band = true;
- }
-
- if (!have_band) {
- WARN_ON(1);
- return -EINVAL;
- }
-
- /* check and set up bitrates */
- ieee80211_set_bitrate_flags(wiphy);
-
- /* set up regulatory info */
- wiphy_update_regulatory(wiphy);
-
- mutex_lock(&cfg80211_drv_mutex);
-
- res = device_add(&drv->wiphy.dev);
- if (res)
- goto out_unlock;
-
- list_add(&drv->list, &cfg80211_drv_list);
-
- /* add to debugfs */
- drv->wiphy.debugfsdir =
- debugfs_create_dir(wiphy_name(&drv->wiphy),
- ieee80211_debugfs_dir);
-
- res = 0;
-out_unlock:
- mutex_unlock(&cfg80211_drv_mutex);
- return res;
-}
-EXPORT_SYMBOL(wiphy_register);
-
-void wiphy_unregister(struct wiphy *wiphy)
-{
- struct cfg80211_registered_device *drv = wiphy_to_dev(wiphy);
-
- /* protect the device list */
- mutex_lock(&cfg80211_drv_mutex);
-
- BUG_ON(!list_empty(&drv->netdev_list));
-
- /*
- * Try to grab drv->mtx. If a command is still in progress,
- * hopefully the driver will refuse it since it's tearing
- * down the device already. We wait for this command to complete
- * before unlinking the item from the list.
- * Note: as codified by the BUG_ON above we cannot get here if
- * a virtual interface is still associated. Hence, we can only
- * get to lock contention here if userspace issues a command
- * that identified the hardware by wiphy index.
- */
- mutex_lock(&drv->mtx);
- /* unlock again before freeing */
- mutex_unlock(&drv->mtx);
-
- list_del(&drv->list);
- device_del(&drv->wiphy.dev);
- debugfs_remove(drv->wiphy.debugfsdir);
-
- mutex_unlock(&cfg80211_drv_mutex);
-}
-EXPORT_SYMBOL(wiphy_unregister);
-
-void cfg80211_dev_free(struct cfg80211_registered_device *drv)
-{
- mutex_destroy(&drv->mtx);
- mutex_destroy(&drv->devlist_mtx);
- kfree(drv);
-}
-
-void wiphy_free(struct wiphy *wiphy)
-{
- put_device(&wiphy->dev);
-}
-EXPORT_SYMBOL(wiphy_free);
-
-static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
- unsigned long state,
- void *ndev)
-{
- struct net_device *dev = ndev;
- struct cfg80211_registered_device *rdev;
-
- if (!dev->ieee80211_ptr)
- return 0;
-
- rdev = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
-
- switch (state) {
- case NETDEV_REGISTER:
- mutex_lock(&rdev->devlist_mtx);
- list_add(&dev->ieee80211_ptr->list, &rdev->netdev_list);
- if (sysfs_create_link(&dev->dev.kobj, &rdev->wiphy.dev.kobj,
- "phy80211")) {
- printk(KERN_ERR "wireless: failed to add phy80211 "
- "symlink to netdev!\n");
- }
- dev->ieee80211_ptr->netdev = dev;
- mutex_unlock(&rdev->devlist_mtx);
- break;
- case NETDEV_UNREGISTER:
- mutex_lock(&rdev->devlist_mtx);
- if (!list_empty(&dev->ieee80211_ptr->list)) {
- sysfs_remove_link(&dev->dev.kobj, "phy80211");
- list_del_init(&dev->ieee80211_ptr->list);
- }
- mutex_unlock(&rdev->devlist_mtx);
- break;
- }
-
- return 0;
-}
-
-static struct notifier_block cfg80211_netdev_notifier = {
- .notifier_call = cfg80211_netdev_notifier_call,
-};
-
-static int cfg80211_init(void)
-{
- int err = wiphy_sysfs_init();
- if (err)
- goto out_fail_sysfs;
-
- err = register_netdevice_notifier(&cfg80211_netdev_notifier);
- if (err)
- goto out_fail_notifier;
-
- err = nl80211_init();
- if (err)
- goto out_fail_nl80211;
-
- ieee80211_debugfs_dir = debugfs_create_dir("ieee80211", NULL);
-
- return 0;
-
-out_fail_nl80211:
- unregister_netdevice_notifier(&cfg80211_netdev_notifier);
-out_fail_notifier:
- wiphy_sysfs_exit();
-out_fail_sysfs:
- return err;
-}
-subsys_initcall(cfg80211_init);
-
-static void cfg80211_exit(void)
-{
- debugfs_remove(ieee80211_debugfs_dir);
- nl80211_exit();
- unregister_netdevice_notifier(&cfg80211_netdev_notifier);
- wiphy_sysfs_exit();
-}
-module_exit(cfg80211_exit);
+++ /dev/null
-/*
- * Wireless configuration interface internals.
- *
- * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
- */
-#ifndef __NET_WIRELESS_CORE_H
-#define __NET_WIRELESS_CORE_H
-#include <linux/mutex.h>
-#include <linux/list.h>
-#include <linux/netdevice.h>
-#include <net/genetlink.h>
-#include <net/wireless.h>
-#include <net/cfg80211.h>
-
-struct cfg80211_registered_device {
- struct cfg80211_ops *ops;
- struct list_head list;
- /* we hold this mutex during any call so that
- * we cannot do multiple calls at once, and also
- * to avoid the deregister call to proceed while
- * any call is in progress */
- struct mutex mtx;
-
- /* wiphy index, internal only */
- int idx;
-
- /* associate netdev list */
- struct mutex devlist_mtx;
- struct list_head netdev_list;
-
- /* must be last because of the way we do wiphy_priv(),
- * and it should at least be aligned to NETDEV_ALIGN */
- struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN)));
-};
-
-static inline
-struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy)
-{
- BUG_ON(!wiphy);
- return container_of(wiphy, struct cfg80211_registered_device, wiphy);
-}
-
-extern struct mutex cfg80211_drv_mutex;
-extern struct list_head cfg80211_drv_list;
-
-/*
- * This function returns a pointer to the driver
- * that the genl_info item that is passed refers to.
- * If successful, it returns non-NULL and also locks
- * the driver's mutex!
- *
- * This means that you need to call cfg80211_put_dev()
- * before being allowed to acquire &cfg80211_drv_mutex!
- *
- * This is necessary because we need to lock the global
- * mutex to get an item off the list safely, and then
- * we lock the drv mutex so it doesn't go away under us.
- *
- * We don't want to keep cfg80211_drv_mutex locked
- * for all the time in order to allow requests on
- * other interfaces to go through at the same time.
- *
- * The result of this can be a PTR_ERR and hence must
- * be checked with IS_ERR() for errors.
- */
-extern struct cfg80211_registered_device *
-cfg80211_get_dev_from_info(struct genl_info *info);
-
-/* identical to cfg80211_get_dev_from_info but only operate on ifindex */
-extern struct cfg80211_registered_device *
-cfg80211_get_dev_from_ifindex(int ifindex);
-
-extern void cfg80211_put_dev(struct cfg80211_registered_device *drv);
-
-/* free object */
-extern void cfg80211_dev_free(struct cfg80211_registered_device *drv);
-
-extern int cfg80211_dev_rename(struct cfg80211_registered_device *drv,
- char *newname);
-
-void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
-void wiphy_update_regulatory(struct wiphy *wiphy);
-
-#endif /* __NET_WIRELESS_CORE_H */
+++ /dev/null
-/*
- * This is the new netlink-based wireless configuration interface.
- *
- * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
- */
-
-#include <linux/if.h>
-#include <linux/module.h>
-#include <linux/err.h>
-#include <linux/mutex.h>
-#include <linux/list.h>
-#include <linux/if_ether.h>
-#include <linux/ieee80211.h>
-#include <linux/nl80211.h>
-#include <linux/rtnetlink.h>
-#include <linux/netlink.h>
-#include <net/genetlink.h>
-#include <net/cfg80211.h>
-#include "core.h"
-#include "nl80211.h"
-
-/* the netlink family */
-static struct genl_family nl80211_fam = {
- .id = GENL_ID_GENERATE, /* don't bother with a hardcoded ID */
- .name = "nl80211", /* have users key off the name instead */
- .hdrsize = 0, /* no private header */
- .version = 1, /* no particular meaning now */
- .maxattr = NL80211_ATTR_MAX,
-};
-
-/* internal helper: get drv and dev */
-static int get_drv_dev_by_info_ifindex(struct genl_info *info,
- struct cfg80211_registered_device **drv,
- struct net_device **dev)
-{
- int ifindex;
-
- if (!info->attrs[NL80211_ATTR_IFINDEX])
- return -EINVAL;
-
- ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
- *dev = dev_get_by_index(&init_net, ifindex);
- if (!*dev)
- return -ENODEV;
-
- *drv = cfg80211_get_dev_from_ifindex(ifindex);
- if (IS_ERR(*drv)) {
- dev_put(*dev);
- return PTR_ERR(*drv);
- }
-
- return 0;
-}
-
-/* policy for the attributes */
-static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
- [NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
- [NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
- .len = BUS_ID_SIZE-1 },
-
- [NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
- [NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
- [NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
-
- [NL80211_ATTR_MAC] = { .type = NLA_BINARY, .len = ETH_ALEN },
-
- [NL80211_ATTR_KEY_DATA] = { .type = NLA_BINARY,
- .len = WLAN_MAX_KEY_LEN },
- [NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
- [NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
- [NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
-
- [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
- [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
- [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
- .len = IEEE80211_MAX_DATA_LEN },
- [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
- .len = IEEE80211_MAX_DATA_LEN },
- [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
- [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
- [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
- [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
- .len = NL80211_MAX_SUPP_RATES },
- [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
- [NL80211_ATTR_MNTR_FLAGS] = { .type = NLA_NESTED },
-};
-
-/* message building helper */
-static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
- int flags, u8 cmd)
-{
- /* since there is no private header just add the generic one */
- return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
-}
-
-/* netlink command implementations */
-
-static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
- struct cfg80211_registered_device *dev)
-{
- void *hdr;
- struct nlattr *nl_bands, *nl_band;
- struct nlattr *nl_freqs, *nl_freq;
- struct nlattr *nl_rates, *nl_rate;
- enum ieee80211_band band;
- struct ieee80211_channel *chan;
- struct ieee80211_rate *rate;
- int i;
-
- hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
- if (!hdr)
- return -1;
-
- NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx);
- NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
-
- nl_bands = nla_nest_start(msg, NL80211_ATTR_WIPHY_BANDS);
- if (!nl_bands)
- goto nla_put_failure;
-
- for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
- if (!dev->wiphy.bands[band])
- continue;
-
- nl_band = nla_nest_start(msg, band);
- if (!nl_band)
- goto nla_put_failure;
-
- /* add frequencies */
- nl_freqs = nla_nest_start(msg, NL80211_BAND_ATTR_FREQS);
- if (!nl_freqs)
- goto nla_put_failure;
-
- for (i = 0; i < dev->wiphy.bands[band]->n_channels; i++) {
- nl_freq = nla_nest_start(msg, i);
- if (!nl_freq)
- goto nla_put_failure;
-
- chan = &dev->wiphy.bands[band]->channels[i];
- NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
- chan->center_freq);
-
- if (chan->flags & IEEE80211_CHAN_DISABLED)
- NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
- if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
- NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
- if (chan->flags & IEEE80211_CHAN_NO_IBSS)
- NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
- if (chan->flags & IEEE80211_CHAN_RADAR)
- NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
-
- nla_nest_end(msg, nl_freq);
- }
-
- nla_nest_end(msg, nl_freqs);
-
- /* add bitrates */
- nl_rates = nla_nest_start(msg, NL80211_BAND_ATTR_RATES);
- if (!nl_rates)
- goto nla_put_failure;
-
- for (i = 0; i < dev->wiphy.bands[band]->n_bitrates; i++) {
- nl_rate = nla_nest_start(msg, i);
- if (!nl_rate)
- goto nla_put_failure;
-
- rate = &dev->wiphy.bands[band]->bitrates[i];
- NLA_PUT_U32(msg, NL80211_BITRATE_ATTR_RATE,
- rate->bitrate);
- if (rate->flags & IEEE80211_RATE_SHORT_PREAMBLE)
- NLA_PUT_FLAG(msg,
- NL80211_BITRATE_ATTR_2GHZ_SHORTPREAMBLE);
-
- nla_nest_end(msg, nl_rate);
- }
-
- nla_nest_end(msg, nl_rates);
-
- nla_nest_end(msg, nl_band);
- }
- nla_nest_end(msg, nl_bands);
-
- return genlmsg_end(msg, hdr);
-
- nla_put_failure:
- return genlmsg_cancel(msg, hdr);
-}
-
-static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
-{
- int idx = 0;
- int start = cb->args[0];
- struct cfg80211_registered_device *dev;
-
- mutex_lock(&cfg80211_drv_mutex);
- list_for_each_entry(dev, &cfg80211_drv_list, list) {
- if (++idx < start)
- continue;
- if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
- cb->nlh->nlmsg_seq, NLM_F_MULTI,
- dev) < 0)
- break;
- }
- mutex_unlock(&cfg80211_drv_mutex);
-
- cb->args[0] = idx;
-
- return skb->len;
-}
-
-static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
-{
- struct sk_buff *msg;
- struct cfg80211_registered_device *dev;
-
- dev = cfg80211_get_dev_from_info(info);
- if (IS_ERR(dev))
- return PTR_ERR(dev);
-
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
- if (!msg)
- goto out_err;
-
- if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
- goto out_free;
-
- cfg80211_put_dev(dev);
-
- return genlmsg_unicast(msg, info->snd_pid);
-
- out_free:
- nlmsg_free(msg);
- out_err:
- cfg80211_put_dev(dev);
- return -ENOBUFS;
-}
-
-static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *rdev;
- int result;
-
- if (!info->attrs[NL80211_ATTR_WIPHY_NAME])
- return -EINVAL;
-
- rdev = cfg80211_get_dev_from_info(info);
- if (IS_ERR(rdev))
- return PTR_ERR(rdev);
-
- result = cfg80211_dev_rename(rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
-
- cfg80211_put_dev(rdev);
- return result;
-}
-
-
-static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
- struct net_device *dev)
-{
- void *hdr;
-
- hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
- if (!hdr)
- return -1;
-
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
- NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
- /* TODO: interface type */
- return genlmsg_end(msg, hdr);
-
- nla_put_failure:
- return genlmsg_cancel(msg, hdr);
-}
-
-static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
-{
- int wp_idx = 0;
- int if_idx = 0;
- int wp_start = cb->args[0];
- int if_start = cb->args[1];
- struct cfg80211_registered_device *dev;
- struct wireless_dev *wdev;
-
- mutex_lock(&cfg80211_drv_mutex);
- list_for_each_entry(dev, &cfg80211_drv_list, list) {
- if (++wp_idx < wp_start)
- continue;
- if_idx = 0;
-
- mutex_lock(&dev->devlist_mtx);
- list_for_each_entry(wdev, &dev->netdev_list, list) {
- if (++if_idx < if_start)
- continue;
- if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
- cb->nlh->nlmsg_seq, NLM_F_MULTI,
- wdev->netdev) < 0)
- break;
- }
- mutex_unlock(&dev->devlist_mtx);
- }
- mutex_unlock(&cfg80211_drv_mutex);
-
- cb->args[0] = wp_idx;
- cb->args[1] = if_idx;
-
- return skb->len;
-}
-
-static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
-{
- struct sk_buff *msg;
- struct cfg80211_registered_device *dev;
- struct net_device *netdev;
- int err;
-
- err = get_drv_dev_by_info_ifindex(info, &dev, &netdev);
- if (err)
- return err;
-
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
- if (!msg)
- goto out_err;
-
- if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0)
- goto out_free;
-
- dev_put(netdev);
- cfg80211_put_dev(dev);
-
- return genlmsg_unicast(msg, info->snd_pid);
-
- out_free:
- nlmsg_free(msg);
- out_err:
- dev_put(netdev);
- cfg80211_put_dev(dev);
- return -ENOBUFS;
-}
-
-static const struct nla_policy mntr_flags_policy[NL80211_MNTR_FLAG_MAX + 1] = {
- [NL80211_MNTR_FLAG_FCSFAIL] = { .type = NLA_FLAG },
- [NL80211_MNTR_FLAG_PLCPFAIL] = { .type = NLA_FLAG },
- [NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
- [NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
- [NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
-};
-
-static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
-{
- struct nlattr *flags[NL80211_MNTR_FLAG_MAX + 1];
- int flag;
-
- *mntrflags = 0;
-
- if (!nla)
- return -EINVAL;
-
- if (nla_parse_nested(flags, NL80211_MNTR_FLAG_MAX,
- nla, mntr_flags_policy))
- return -EINVAL;
-
- for (flag = 1; flag <= NL80211_MNTR_FLAG_MAX; flag++)
- if (flags[flag])
- *mntrflags |= (1<<flag);
-
- return 0;
-}
-
-static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
- int err, ifindex;
- enum nl80211_iftype type;
- struct net_device *dev;
- u32 flags;
-
- if (info->attrs[NL80211_ATTR_IFTYPE]) {
- type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
- if (type > NL80211_IFTYPE_MAX)
- return -EINVAL;
- } else
- return -EINVAL;
-
- err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
- if (err)
- return err;
- ifindex = dev->ifindex;
- dev_put(dev);
-
- if (!drv->ops->change_virtual_intf) {
- err = -EOPNOTSUPP;
- goto unlock;
- }
-
- rtnl_lock();
- err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
- info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
- &flags);
- err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex,
- type, err ? NULL : &flags);
- rtnl_unlock();
-
- unlock:
- cfg80211_put_dev(drv);
- return err;
-}
-
-static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
- int err;
- enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
- u32 flags;
-
- if (!info->attrs[NL80211_ATTR_IFNAME])
- return -EINVAL;
-
- if (info->attrs[NL80211_ATTR_IFTYPE]) {
- type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
- if (type > NL80211_IFTYPE_MAX)
- return -EINVAL;
- }
-
- drv = cfg80211_get_dev_from_info(info);
- if (IS_ERR(drv))
- return PTR_ERR(drv);
-
- if (!drv->ops->add_virtual_intf) {
- err = -EOPNOTSUPP;
- goto unlock;
- }
-
- rtnl_lock();
- err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
- info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
- &flags);
- err = drv->ops->add_virtual_intf(&drv->wiphy,
- nla_data(info->attrs[NL80211_ATTR_IFNAME]),
- type, err ? NULL : &flags);
- rtnl_unlock();
-
- unlock:
- cfg80211_put_dev(drv);
- return err;
-}
-
-static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
- int ifindex, err;
- struct net_device *dev;
-
- err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
- if (err)
- return err;
- ifindex = dev->ifindex;
- dev_put(dev);
-
- if (!drv->ops->del_virtual_intf) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- rtnl_lock();
- err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex);
- rtnl_unlock();
-
- out:
- cfg80211_put_dev(drv);
- return err;
-}
-
-struct get_key_cookie {
- struct sk_buff *msg;
- int error;
-};
-
-static void get_key_callback(void *c, struct key_params *params)
-{
- struct get_key_cookie *cookie = c;
-
- if (params->key)
- NLA_PUT(cookie->msg, NL80211_ATTR_KEY_DATA,
- params->key_len, params->key);
-
- if (params->seq)
- NLA_PUT(cookie->msg, NL80211_ATTR_KEY_SEQ,
- params->seq_len, params->seq);
-
- if (params->cipher)
- NLA_PUT_U32(cookie->msg, NL80211_ATTR_KEY_CIPHER,
- params->cipher);
-
- return;
- nla_put_failure:
- cookie->error = 1;
-}
-
-static int nl80211_get_key(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
- int err;
- struct net_device *dev;
- u8 key_idx = 0;
- u8 *mac_addr = NULL;
- struct get_key_cookie cookie = {
- .error = 0,
- };
- void *hdr;
- struct sk_buff *msg;
-
- if (info->attrs[NL80211_ATTR_KEY_IDX])
- key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
-
- if (key_idx > 3)
- return -EINVAL;
-
- if (info->attrs[NL80211_ATTR_MAC])
- mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
-
- err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
- if (err)
- return err;
-
- if (!drv->ops->get_key) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
- if (!msg) {
- err = -ENOMEM;
- goto out;
- }
-
- hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
- NL80211_CMD_NEW_KEY);
-
- if (IS_ERR(hdr)) {
- err = PTR_ERR(hdr);
- goto out;
- }
-
- cookie.msg = msg;
-
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
- NLA_PUT_U8(msg, NL80211_ATTR_KEY_IDX, key_idx);
- if (mac_addr)
- NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
-
- rtnl_lock();
- err = drv->ops->get_key(&drv->wiphy, dev, key_idx, mac_addr,
- &cookie, get_key_callback);
- rtnl_unlock();
-
- if (err)
- goto out;
-
- if (cookie.error)
- goto nla_put_failure;
-
- genlmsg_end(msg, hdr);
- err = genlmsg_unicast(msg, info->snd_pid);
- goto out;
-
- nla_put_failure:
- err = -ENOBUFS;
- nlmsg_free(msg);
- out:
- cfg80211_put_dev(drv);
- dev_put(dev);
- return err;
-}
-
-static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
- int err;
- struct net_device *dev;
- u8 key_idx;
-
- if (!info->attrs[NL80211_ATTR_KEY_IDX])
- return -EINVAL;
-
- key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
-
- if (key_idx > 3)
- return -EINVAL;
-
- /* currently only support setting default key */
- if (!info->attrs[NL80211_ATTR_KEY_DEFAULT])
- return -EINVAL;
-
- err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
- if (err)
- return err;
-
- if (!drv->ops->set_default_key) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- rtnl_lock();
- err = drv->ops->set_default_key(&drv->wiphy, dev, key_idx);
- rtnl_unlock();
-
- out:
- cfg80211_put_dev(drv);
- dev_put(dev);
- return err;
-}
-
-static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
- int err;
- struct net_device *dev;
- struct key_params params;
- u8 key_idx = 0;
- u8 *mac_addr = NULL;
-
- memset(¶ms, 0, sizeof(params));
-
- if (!info->attrs[NL80211_ATTR_KEY_CIPHER])
- return -EINVAL;
-
- if (info->attrs[NL80211_ATTR_KEY_DATA]) {
- params.key = nla_data(info->attrs[NL80211_ATTR_KEY_DATA]);
- params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]);
- }
-
- if (info->attrs[NL80211_ATTR_KEY_IDX])
- key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
-
- params.cipher = nla_get_u32(info->attrs[NL80211_ATTR_KEY_CIPHER]);
-
- if (info->attrs[NL80211_ATTR_MAC])
- mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
-
- if (key_idx > 3)
- return -EINVAL;
-
- /*
- * Disallow pairwise keys with non-zero index unless it's WEP
- * (because current deployments use pairwise WEP keys with
- * non-zero indizes but 802.11i clearly specifies to use zero)
- */
- if (mac_addr && key_idx &&
- params.cipher != WLAN_CIPHER_SUITE_WEP40 &&
- params.cipher != WLAN_CIPHER_SUITE_WEP104)
- return -EINVAL;
-
- /* TODO: add definitions for the lengths to linux/ieee80211.h */
- switch (params.cipher) {
- case WLAN_CIPHER_SUITE_WEP40:
- if (params.key_len != 5)
- return -EINVAL;
- break;
- case WLAN_CIPHER_SUITE_TKIP:
- if (params.key_len != 32)
- return -EINVAL;
- break;
- case WLAN_CIPHER_SUITE_CCMP:
- if (params.key_len != 16)
- return -EINVAL;
- break;
- case WLAN_CIPHER_SUITE_WEP104:
- if (params.key_len != 13)
- return -EINVAL;
- break;
- default:
- return -EINVAL;
- }
-
- err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
- if (err)
- return err;
-
- if (!drv->ops->add_key) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- rtnl_lock();
- err = drv->ops->add_key(&drv->wiphy, dev, key_idx, mac_addr, ¶ms);
- rtnl_unlock();
-
- out:
- cfg80211_put_dev(drv);
- dev_put(dev);
- return err;
-}
-
-static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
- int err;
- struct net_device *dev;
- u8 key_idx = 0;
- u8 *mac_addr = NULL;
-
- if (info->attrs[NL80211_ATTR_KEY_IDX])
- key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]);
-
- if (key_idx > 3)
- return -EINVAL;
-
- if (info->attrs[NL80211_ATTR_MAC])
- mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
-
- err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
- if (err)
- return err;
-
- if (!drv->ops->del_key) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- rtnl_lock();
- err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr);
- rtnl_unlock();
-
- out:
- cfg80211_put_dev(drv);
- dev_put(dev);
- return err;
-}
-
-static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
-{
- int (*call)(struct wiphy *wiphy, struct net_device *dev,
- struct beacon_parameters *info);
- struct cfg80211_registered_device *drv;
- int err;
- struct net_device *dev;
- struct beacon_parameters params;
- int haveinfo = 0;
-
- err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
- if (err)
- return err;
-
- switch (info->genlhdr->cmd) {
- case NL80211_CMD_NEW_BEACON:
- /* these are required for NEW_BEACON */
- if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
- !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
- !info->attrs[NL80211_ATTR_BEACON_HEAD]) {
- err = -EINVAL;
- goto out;
- }
-
- call = drv->ops->add_beacon;
- break;
- case NL80211_CMD_SET_BEACON:
- call = drv->ops->set_beacon;
- break;
- default:
- WARN_ON(1);
- err = -EOPNOTSUPP;
- goto out;
- }
-
- if (!call) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- memset(¶ms, 0, sizeof(params));
-
- if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
- params.interval =
- nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
- haveinfo = 1;
- }
-
- if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
- params.dtim_period =
- nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
- haveinfo = 1;
- }
-
- if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
- params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
- params.head_len =
- nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
- haveinfo = 1;
- }
-
- if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
- params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
- params.tail_len =
- nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
- haveinfo = 1;
- }
-
- if (!haveinfo) {
- err = -EINVAL;
- goto out;
- }
-
- rtnl_lock();
- err = call(&drv->wiphy, dev, ¶ms);
- rtnl_unlock();
-
- out:
- cfg80211_put_dev(drv);
- dev_put(dev);
- return err;
-}
-
-static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
- int err;
- struct net_device *dev;
-
- err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
- if (err)
- return err;
-
- if (!drv->ops->del_beacon) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- rtnl_lock();
- err = drv->ops->del_beacon(&drv->wiphy, dev);
- rtnl_unlock();
-
- out:
- cfg80211_put_dev(drv);
- dev_put(dev);
- return err;
-}
-
-static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = {
- [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
- [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
- [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
-};
-
-static int parse_station_flags(struct nlattr *nla, u32 *staflags)
-{
- struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
- int flag;
-
- *staflags = 0;
-
- if (!nla)
- return 0;
-
- if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
- nla, sta_flags_policy))
- return -EINVAL;
-
- *staflags = STATION_FLAG_CHANGED;
-
- for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
- if (flags[flag])
- *staflags |= (1<<flag);
-
- return 0;
-}
-
-static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq,
- int flags, struct net_device *dev,
- u8 *mac_addr, struct station_stats *stats)
-{
- void *hdr;
- struct nlattr *statsattr;
-
- hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION);
- if (!hdr)
- return -1;
-
- NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
- NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr);
-
- statsattr = nla_nest_start(msg, NL80211_ATTR_STA_STATS);
- if (!statsattr)
- goto nla_put_failure;
- if (stats->filled & STATION_STAT_INACTIVE_TIME)
- NLA_PUT_U32(msg, NL80211_STA_STAT_INACTIVE_TIME,
- stats->inactive_time);
- if (stats->filled & STATION_STAT_RX_BYTES)
- NLA_PUT_U32(msg, NL80211_STA_STAT_RX_BYTES,
- stats->rx_bytes);
- if (stats->filled & STATION_STAT_TX_BYTES)
- NLA_PUT_U32(msg, NL80211_STA_STAT_TX_BYTES,
- stats->tx_bytes);
-
- nla_nest_end(msg, statsattr);
-
- return genlmsg_end(msg, hdr);
-
- nla_put_failure:
- return genlmsg_cancel(msg, hdr);
-}
-
-
-static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
- int err;
- struct net_device *dev;
- struct station_stats stats;
- struct sk_buff *msg;
- u8 *mac_addr = NULL;
-
- memset(&stats, 0, sizeof(stats));
-
- if (!info->attrs[NL80211_ATTR_MAC])
- return -EINVAL;
-
- mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
-
- err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
- if (err)
- return err;
-
- if (!drv->ops->get_station) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- rtnl_lock();
- err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &stats);
- rtnl_unlock();
-
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
- if (!msg)
- goto out;
-
- if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0,
- dev, mac_addr, &stats) < 0)
- goto out_free;
-
- err = genlmsg_unicast(msg, info->snd_pid);
- goto out;
-
- out_free:
- nlmsg_free(msg);
-
- out:
- cfg80211_put_dev(drv);
- dev_put(dev);
- return err;
-}
-
-/*
- * Get vlan interface making sure it is on the right wiphy.
- */
-static int get_vlan(struct nlattr *vlanattr,
- struct cfg80211_registered_device *rdev,
- struct net_device **vlan)
-{
- *vlan = NULL;
-
- if (vlanattr) {
- *vlan = dev_get_by_index(&init_net, nla_get_u32(vlanattr));
- if (!*vlan)
- return -ENODEV;
- if (!(*vlan)->ieee80211_ptr)
- return -EINVAL;
- if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
- return -EINVAL;
- }
- return 0;
-}
-
-static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
- int err;
- struct net_device *dev;
- struct station_parameters params;
- u8 *mac_addr = NULL;
-
- memset(¶ms, 0, sizeof(params));
-
- params.listen_interval = -1;
-
- if (info->attrs[NL80211_ATTR_STA_AID])
- return -EINVAL;
-
- if (!info->attrs[NL80211_ATTR_MAC])
- return -EINVAL;
-
- mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
-
- if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
- params.supported_rates =
- nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
- params.supported_rates_len =
- nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
- }
-
- if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
- params.listen_interval =
- nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
-
- if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
- ¶ms.station_flags))
- return -EINVAL;
-
- err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
- if (err)
- return err;
-
- err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan);
- if (err)
- goto out;
-
- if (!drv->ops->change_station) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- rtnl_lock();
- err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, ¶ms);
- rtnl_unlock();
-
- out:
- if (params.vlan)
- dev_put(params.vlan);
- cfg80211_put_dev(drv);
- dev_put(dev);
- return err;
-}
-
-static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
- int err;
- struct net_device *dev;
- struct station_parameters params;
- u8 *mac_addr = NULL;
-
- memset(¶ms, 0, sizeof(params));
-
- if (!info->attrs[NL80211_ATTR_MAC])
- return -EINVAL;
-
- if (!info->attrs[NL80211_ATTR_STA_AID])
- return -EINVAL;
-
- if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
- return -EINVAL;
-
- if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
- return -EINVAL;
-
- mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
- params.supported_rates =
- nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
- params.supported_rates_len =
- nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
- params.listen_interval =
- nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
- params.listen_interval = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
-
- if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
- ¶ms.station_flags))
- return -EINVAL;
-
- err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
- if (err)
- return err;
-
- err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan);
- if (err)
- goto out;
-
- if (!drv->ops->add_station) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- rtnl_lock();
- err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, ¶ms);
- rtnl_unlock();
-
- out:
- if (params.vlan)
- dev_put(params.vlan);
- cfg80211_put_dev(drv);
- dev_put(dev);
- return err;
-}
-
-static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
-{
- struct cfg80211_registered_device *drv;
- int err;
- struct net_device *dev;
- u8 *mac_addr = NULL;
-
- if (info->attrs[NL80211_ATTR_MAC])
- mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
-
- err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
- if (err)
- return err;
-
- if (!drv->ops->del_station) {
- err = -EOPNOTSUPP;
- goto out;
- }
-
- rtnl_lock();
- err = drv->ops->del_station(&drv->wiphy, dev, mac_addr);
- rtnl_unlock();
-
- out:
- cfg80211_put_dev(drv);
- dev_put(dev);
- return err;
-}
-
-static struct genl_ops nl80211_ops[] = {
- {
- .cmd = NL80211_CMD_GET_WIPHY,
- .doit = nl80211_get_wiphy,
- .dumpit = nl80211_dump_wiphy,
- .policy = nl80211_policy,
- /* can be retrieved by unprivileged users */
- },
- {
- .cmd = NL80211_CMD_SET_WIPHY,
- .doit = nl80211_set_wiphy,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_GET_INTERFACE,
- .doit = nl80211_get_interface,
- .dumpit = nl80211_dump_interface,
- .policy = nl80211_policy,
- /* can be retrieved by unprivileged users */
- },
- {
- .cmd = NL80211_CMD_SET_INTERFACE,
- .doit = nl80211_set_interface,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_NEW_INTERFACE,
- .doit = nl80211_new_interface,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_DEL_INTERFACE,
- .doit = nl80211_del_interface,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_GET_KEY,
- .doit = nl80211_get_key,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_SET_KEY,
- .doit = nl80211_set_key,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_NEW_KEY,
- .doit = nl80211_new_key,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_DEL_KEY,
- .doit = nl80211_del_key,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_SET_BEACON,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- .doit = nl80211_addset_beacon,
- },
- {
- .cmd = NL80211_CMD_NEW_BEACON,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- .doit = nl80211_addset_beacon,
- },
- {
- .cmd = NL80211_CMD_DEL_BEACON,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- .doit = nl80211_del_beacon,
- },
- {
- .cmd = NL80211_CMD_GET_STATION,
- .doit = nl80211_get_station,
- /* TODO: implement dumpit */
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_SET_STATION,
- .doit = nl80211_set_station,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_NEW_STATION,
- .doit = nl80211_new_station,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
- {
- .cmd = NL80211_CMD_DEL_STATION,
- .doit = nl80211_del_station,
- .policy = nl80211_policy,
- .flags = GENL_ADMIN_PERM,
- },
-};
-
-/* multicast groups */
-static struct genl_multicast_group nl80211_config_mcgrp = {
- .name = "config",
-};
-
-/* notification functions */
-
-void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
-{
- struct sk_buff *msg;
-
- msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
- if (!msg)
- return;
-
- if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
- nlmsg_free(msg);
- return;
- }
-
- genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
-}
-
-/* initialisation/exit functions */
-
-int nl80211_init(void)
-{
- int err, i;
-
- err = genl_register_family(&nl80211_fam);
- if (err)
- return err;
-
- for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) {
- err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]);
- if (err)
- goto err_out;
- }
-
- err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
- if (err)
- goto err_out;
-
- return 0;
- err_out:
- genl_unregister_family(&nl80211_fam);
- return err;
-}
-
-void nl80211_exit(void)
-{
- genl_unregister_family(&nl80211_fam);
-}
+++ /dev/null
-#ifndef __NET_WIRELESS_NL80211_H
-#define __NET_WIRELESS_NL80211_H
-
-#include "core.h"
-
-#ifdef CONFIG_NL80211
-extern int nl80211_init(void);
-extern void nl80211_exit(void);
-extern void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev);
-#else
-static inline int nl80211_init(void)
-{
- return 0;
-}
-static inline void nl80211_exit(void)
-{
-}
-static inline void nl80211_notify_dev_rename(
- struct cfg80211_registered_device *rdev)
-{
-}
-#endif /* CONFIG_NL80211 */
-
-#endif /* __NET_WIRELESS_NL80211_H */
+++ /dev/null
-/*
- * Radiotap parser
- *
- * Copyright 2007 Andy Green <andy@warmcat.com>
- */
-
-#include <net/cfg80211.h>
-#include <net/ieee80211_radiotap.h>
-#include <asm/unaligned.h>
-
-/* function prototypes and related defs are in include/net/cfg80211.h */
-
-/**
- * ieee80211_radiotap_iterator_init - radiotap parser iterator initialization
- * @iterator: radiotap_iterator to initialize
- * @radiotap_header: radiotap header to parse
- * @max_length: total length we can parse into (eg, whole packet length)
- *
- * Returns: 0 or a negative error code if there is a problem.
- *
- * This function initializes an opaque iterator struct which can then
- * be passed to ieee80211_radiotap_iterator_next() to visit every radiotap
- * argument which is present in the header. It knows about extended
- * present headers and handles them.
- *
- * How to use:
- * call __ieee80211_radiotap_iterator_init() to init a semi-opaque iterator
- * struct ieee80211_radiotap_iterator (no need to init the struct beforehand)
- * checking for a good 0 return code. Then loop calling
- * __ieee80211_radiotap_iterator_next()... it returns either 0,
- * -ENOENT if there are no more args to parse, or -EINVAL if there is a problem.
- * The iterator's @this_arg member points to the start of the argument
- * associated with the current argument index that is present, which can be
- * found in the iterator's @this_arg_index member. This arg index corresponds
- * to the IEEE80211_RADIOTAP_... defines.
- *
- * Radiotap header length:
- * You can find the CPU-endian total radiotap header length in
- * iterator->max_length after executing ieee80211_radiotap_iterator_init()
- * successfully.
- *
- * Alignment Gotcha:
- * You must take care when dereferencing iterator.this_arg
- * for multibyte types... the pointer is not aligned. Use
- * get_unaligned((type *)iterator.this_arg) to dereference
- * iterator.this_arg for type "type" safely on all arches.
- *
- * Example code:
- * See Documentation/networking/radiotap-headers.txt
- */
-
-int ieee80211_radiotap_iterator_init(
- struct ieee80211_radiotap_iterator *iterator,
- struct ieee80211_radiotap_header *radiotap_header,
- int max_length)
-{
- /* Linux only supports version 0 radiotap format */
- if (radiotap_header->it_version)
- return -EINVAL;
-
- /* sanity check for allowed length and radiotap length field */
- if (max_length < le16_to_cpu(get_unaligned(&radiotap_header->it_len)))
- return -EINVAL;
-
- iterator->rtheader = radiotap_header;
- iterator->max_length = le16_to_cpu(get_unaligned(
- &radiotap_header->it_len));
- iterator->arg_index = 0;
- iterator->bitmap_shifter = le32_to_cpu(get_unaligned(
- &radiotap_header->it_present));
- iterator->arg = (u8 *)radiotap_header + sizeof(*radiotap_header);
- iterator->this_arg = NULL;
-
- /* find payload start allowing for extended bitmap(s) */
-
- if (unlikely(iterator->bitmap_shifter & (1<<IEEE80211_RADIOTAP_EXT))) {
- while (le32_to_cpu(get_unaligned((__le32 *)iterator->arg)) &
- (1<<IEEE80211_RADIOTAP_EXT)) {
- iterator->arg += sizeof(u32);
-
- /*
- * check for insanity where the present bitmaps
- * keep claiming to extend up to or even beyond the
- * stated radiotap header length
- */
-
- if (((ulong)iterator->arg -
- (ulong)iterator->rtheader) > iterator->max_length)
- return -EINVAL;
- }
-
- iterator->arg += sizeof(u32);
-
- /*
- * no need to check again for blowing past stated radiotap
- * header length, because ieee80211_radiotap_iterator_next
- * checks it before it is dereferenced
- */
- }
-
- /* we are all initialized happily */
-
- return 0;
-}
-EXPORT_SYMBOL(ieee80211_radiotap_iterator_init);
-
-
-/**
- * ieee80211_radiotap_iterator_next - return next radiotap parser iterator arg
- * @iterator: radiotap_iterator to move to next arg (if any)
- *
- * Returns: 0 if there is an argument to handle,
- * -ENOENT if there are no more args or -EINVAL
- * if there is something else wrong.
- *
- * This function provides the next radiotap arg index (IEEE80211_RADIOTAP_*)
- * in @this_arg_index and sets @this_arg to point to the
- * payload for the field. It takes care of alignment handling and extended
- * present fields. @this_arg can be changed by the caller (eg,
- * incremented to move inside a compound argument like
- * IEEE80211_RADIOTAP_CHANNEL). The args pointed to are in
- * little-endian format whatever the endianess of your CPU.
- *
- * Alignment Gotcha:
- * You must take care when dereferencing iterator.this_arg
- * for multibyte types... the pointer is not aligned. Use
- * get_unaligned((type *)iterator.this_arg) to dereference
- * iterator.this_arg for type "type" safely on all arches.
- */
-
-int ieee80211_radiotap_iterator_next(
- struct ieee80211_radiotap_iterator *iterator)
-{
-
- /*
- * small length lookup table for all radiotap types we heard of
- * starting from b0 in the bitmap, so we can walk the payload
- * area of the radiotap header
- *
- * There is a requirement to pad args, so that args
- * of a given length must begin at a boundary of that length
- * -- but note that compound args are allowed (eg, 2 x u16
- * for IEEE80211_RADIOTAP_CHANNEL) so total arg length is not
- * a reliable indicator of alignment requirement.
- *
- * upper nybble: content alignment for arg
- * lower nybble: content length for arg
- */
-
- static const u8 rt_sizes[] = {
- [IEEE80211_RADIOTAP_TSFT] = 0x88,
- [IEEE80211_RADIOTAP_FLAGS] = 0x11,
- [IEEE80211_RADIOTAP_RATE] = 0x11,
- [IEEE80211_RADIOTAP_CHANNEL] = 0x24,
- [IEEE80211_RADIOTAP_FHSS] = 0x22,
- [IEEE80211_RADIOTAP_DBM_ANTSIGNAL] = 0x11,
- [IEEE80211_RADIOTAP_DBM_ANTNOISE] = 0x11,
- [IEEE80211_RADIOTAP_LOCK_QUALITY] = 0x22,
- [IEEE80211_RADIOTAP_TX_ATTENUATION] = 0x22,
- [IEEE80211_RADIOTAP_DB_TX_ATTENUATION] = 0x22,
- [IEEE80211_RADIOTAP_DBM_TX_POWER] = 0x11,
- [IEEE80211_RADIOTAP_ANTENNA] = 0x11,
- [IEEE80211_RADIOTAP_DB_ANTSIGNAL] = 0x11,
- [IEEE80211_RADIOTAP_DB_ANTNOISE] = 0x11,
- [IEEE80211_RADIOTAP_RX_FLAGS] = 0x22,
- [IEEE80211_RADIOTAP_TX_FLAGS] = 0x22,
- [IEEE80211_RADIOTAP_RTS_RETRIES] = 0x11,
- [IEEE80211_RADIOTAP_DATA_RETRIES] = 0x11,
- /*
- * add more here as they are defined in
- * include/net/ieee80211_radiotap.h
- */
- };
-
- /*
- * for every radiotap entry we can at
- * least skip (by knowing the length)...
- */
-
- while (iterator->arg_index < sizeof(rt_sizes)) {
- int hit = 0;
- int pad;
-
- if (!(iterator->bitmap_shifter & 1))
- goto next_entry; /* arg not present */
-
- /*
- * arg is present, account for alignment padding
- * 8-bit args can be at any alignment
- * 16-bit args must start on 16-bit boundary
- * 32-bit args must start on 32-bit boundary
- * 64-bit args must start on 64-bit boundary
- *
- * note that total arg size can differ from alignment of
- * elements inside arg, so we use upper nybble of length
- * table to base alignment on
- *
- * also note: these alignments are ** relative to the
- * start of the radiotap header **. There is no guarantee
- * that the radiotap header itself is aligned on any
- * kind of boundary.
- *
- * the above is why get_unaligned() is used to dereference
- * multibyte elements from the radiotap area
- */
-
- pad = (((ulong)iterator->arg) -
- ((ulong)iterator->rtheader)) &
- ((rt_sizes[iterator->arg_index] >> 4) - 1);
-
- if (pad)
- iterator->arg +=
- (rt_sizes[iterator->arg_index] >> 4) - pad;
-
- /*
- * this is what we will return to user, but we need to
- * move on first so next call has something fresh to test
- */
- iterator->this_arg_index = iterator->arg_index;
- iterator->this_arg = iterator->arg;
- hit = 1;
-
- /* internally move on the size of this arg */
- iterator->arg += rt_sizes[iterator->arg_index] & 0x0f;
-
- /*
- * check for insanity where we are given a bitmap that
- * claims to have more arg content than the length of the
- * radiotap section. We will normally end up equalling this
- * max_length on the last arg, never exceeding it.
- */
-
- if (((ulong)iterator->arg - (ulong)iterator->rtheader) >
- iterator->max_length)
- return -EINVAL;
-
- next_entry:
- iterator->arg_index++;
- if (unlikely((iterator->arg_index & 31) == 0)) {
- /* completed current u32 bitmap */
- if (iterator->bitmap_shifter & 1) {
- /* b31 was set, there is more */
- /* move to next u32 bitmap */
- iterator->bitmap_shifter = le32_to_cpu(
- get_unaligned(iterator->next_bitmap));
- iterator->next_bitmap++;
- } else
- /* no more bitmaps: end */
- iterator->arg_index = sizeof(rt_sizes);
- } else /* just try the next bit */
- iterator->bitmap_shifter >>= 1;
-
- /* if we found a valid arg earlier, return it now */
- if (hit)
- return 0;
- }
-
- /* we don't know how to handle any more args, we're done */
- return -ENOENT;
-}
-EXPORT_SYMBOL(ieee80211_radiotap_iterator_next);
+++ /dev/null
-/*
- * Copyright 2002-2005, Instant802 Networks, Inc.
- * Copyright 2005-2006, Devicescape Software, Inc.
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-/*
- * This regulatory domain control implementation is highly incomplete, it
- * only exists for the purpose of not regressing mac80211.
- *
- * For now, drivers can restrict the set of allowed channels by either
- * not registering those channels or setting the IEEE80211_CHAN_DISABLED
- * flag; that flag will only be *set* by this code, never *cleared.
- *
- * The usual implementation is for a driver to read a device EEPROM to
- * determine which regulatory domain it should be operating under, then
- * looking up the allowable channels in a driver-local table and finally
- * registering those channels in the wiphy structure.
- *
- * Alternatively, drivers that trust the regulatory domain control here
- * will register a complete set of capabilities and the control code
- * will restrict the set by setting the IEEE80211_CHAN_* flags.
- */
-#include <linux/kernel.h>
-#include <net/wireless.h>
-#include "core.h"
-
-static char *ieee80211_regdom = "US";
-module_param(ieee80211_regdom, charp, 0444);
-MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain code");
-
-struct ieee80211_channel_range {
- short start_freq;
- short end_freq;
- int max_power;
- int max_antenna_gain;
- u32 flags;
-};
-
-struct ieee80211_regdomain {
- const char *code;
- const struct ieee80211_channel_range *ranges;
- int n_ranges;
-};
-
-#define RANGE_PWR(_start, _end, _pwr, _ag, _flags) \
- { _start, _end, _pwr, _ag, _flags }
-
-
-/*
- * Ideally, in the future, these definitions will be loaded from a
- * userspace table via some daemon.
- */
-static const struct ieee80211_channel_range ieee80211_US_channels[] = {
- /* IEEE 802.11b/g, channels 1..11 */
- RANGE_PWR(2412, 2462, 27, 6, 0),
- /* IEEE 802.11a, channels 52..64 */
- RANGE_PWR(5260, 5320, 23, 6, 0),
- /* IEEE 802.11a, channels 149..165, outdoor */
- RANGE_PWR(5745, 5825, 30, 6, 0),
-};
-
-static const struct ieee80211_channel_range ieee80211_JP_channels[] = {
- /* IEEE 802.11b/g, channels 1..14 */
- RANGE_PWR(2412, 2484, 20, 6, 0),
- /* IEEE 802.11a, channels 34..48 */
- RANGE_PWR(5170, 5240, 20, 6, IEEE80211_CHAN_PASSIVE_SCAN),
- /* IEEE 802.11a, channels 52..64 */
- RANGE_PWR(5260, 5320, 20, 6, IEEE80211_CHAN_NO_IBSS |
- IEEE80211_CHAN_RADAR),
-};
-
-#define REGDOM(_code) \
- { \
- .code = __stringify(_code), \
- .ranges = ieee80211_ ##_code## _channels, \
- .n_ranges = ARRAY_SIZE(ieee80211_ ##_code## _channels), \
- }
-
-static const struct ieee80211_regdomain ieee80211_regdoms[] = {
- REGDOM(US),
- REGDOM(JP),
-};
-
-
-static const struct ieee80211_regdomain *get_regdom(void)
-{
- static const struct ieee80211_channel_range
- ieee80211_world_channels[] = {
- /* IEEE 802.11b/g, channels 1..11 */
- RANGE_PWR(2412, 2462, 27, 6, 0),
- };
- static const struct ieee80211_regdomain regdom_world = REGDOM(world);
- int i;
-
- for (i = 0; i < ARRAY_SIZE(ieee80211_regdoms); i++)
- if (strcmp(ieee80211_regdom, ieee80211_regdoms[i].code) == 0)
- return &ieee80211_regdoms[i];
-
- return ®dom_world;
-}
-
-
-static void handle_channel(struct ieee80211_channel *chan,
- const struct ieee80211_regdomain *rd)
-{
- int i;
- u32 flags = chan->orig_flags;
- const struct ieee80211_channel_range *rg = NULL;
-
- for (i = 0; i < rd->n_ranges; i++) {
- if (rd->ranges[i].start_freq <= chan->center_freq &&
- chan->center_freq <= rd->ranges[i].end_freq) {
- rg = &rd->ranges[i];
- break;
- }
- }
-
- if (!rg) {
- /* not found */
- flags |= IEEE80211_CHAN_DISABLED;
- chan->flags = flags;
- return;
- }
-
- chan->flags = flags;
- chan->max_antenna_gain = min(chan->orig_mag,
- rg->max_antenna_gain);
- chan->max_power = min(chan->orig_mpwr, rg->max_power);
-}
-
-static void handle_band(struct ieee80211_supported_band *sband,
- const struct ieee80211_regdomain *rd)
-{
- int i;
-
- for (i = 0; i < sband->n_channels; i++)
- handle_channel(&sband->channels[i], rd);
-}
-
-void wiphy_update_regulatory(struct wiphy *wiphy)
-{
- enum ieee80211_band band;
- const struct ieee80211_regdomain *rd = get_regdom();
-
- for (band = 0; band < IEEE80211_NUM_BANDS; band++)
- if (wiphy->bands[band])
- handle_band(wiphy->bands[band], rd);
-}
+++ /dev/null
-/*
- * This file provides /sys/class/ieee80211/<wiphy name>/
- * and some default attributes.
- *
- * Copyright 2005-2006 Jiri Benc <jbenc@suse.cz>
- * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
- *
- * This file is GPLv2 as found in COPYING.
- */
-
-#include <linux/device.h>
-#include <linux/module.h>
-#include <linux/netdevice.h>
-#include <linux/nl80211.h>
-#include <linux/rtnetlink.h>
-#include <net/cfg80211.h>
-#include "sysfs.h"
-#include "core.h"
-
-static inline struct cfg80211_registered_device *dev_to_rdev(
- struct device *dev)
-{
- return container_of(dev, struct cfg80211_registered_device, wiphy.dev);
-}
-
-static ssize_t _show_index(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- return sprintf(buf, "%d\n", dev_to_rdev(dev)->idx);
-}
-
-static ssize_t _show_permaddr(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned char *addr = dev_to_rdev(dev)->wiphy.perm_addr;
-
- return sprintf(buf, "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
- addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
-}
-
-static struct device_attribute ieee80211_dev_attrs[] = {
- __ATTR(index, S_IRUGO, _show_index, NULL),
- __ATTR(macaddress, S_IRUGO, _show_permaddr, NULL),
- {}
-};
-
-static void wiphy_dev_release(struct device *dev)
-{
- struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
-
- cfg80211_dev_free(rdev);
-}
-
-#ifdef CONFIG_HOTPLUG
-static int wiphy_uevent(struct device *dev, struct kobj_uevent_env *env)
-{
- /* TODO, we probably need stuff here */
- return 0;
-}
-#endif
-
-struct class ieee80211_class = {
- .name = "ieee80211",
- .owner = THIS_MODULE,
- .dev_release = wiphy_dev_release,
- .dev_attrs = ieee80211_dev_attrs,
-#ifdef CONFIG_HOTPLUG
- .dev_uevent = wiphy_uevent,
-#endif
-};
-
-int wiphy_sysfs_init(void)
-{
- return class_register(&ieee80211_class);
-}
-
-void wiphy_sysfs_exit(void)
-{
- class_unregister(&ieee80211_class);
-}
+++ /dev/null
-#ifndef __WIRELESS_SYSFS_H
-#define __WIRELESS_SYSFS_H
-
-extern int wiphy_sysfs_init(void);
-extern void wiphy_sysfs_exit(void);
-
-extern struct class ieee80211_class;
-
-#endif /* __WIRELESS_SYSFS_H */
+++ /dev/null
-/*
- * Wireless utility functions
- *
- * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
- */
-#include <net/wireless.h>
-#include <asm/bitops.h>
-#include "core.h"
-
-int ieee80211_channel_to_frequency(int chan)
-{
- if (chan < 14)
- return 2407 + chan * 5;
-
- if (chan == 14)
- return 2484;
-
- /* FIXME: 802.11j 17.3.8.3.2 */
- return (chan + 1000) * 5;
-}
-EXPORT_SYMBOL(ieee80211_channel_to_frequency);
-
-int ieee80211_frequency_to_channel(int freq)
-{
- if (freq == 2484)
- return 14;
-
- if (freq < 2484)
- return (freq - 2407) / 5;
-
- /* FIXME: 802.11j 17.3.8.3.2 */
- return freq/5 - 1000;
-}
-EXPORT_SYMBOL(ieee80211_frequency_to_channel);
-
-static void set_mandatory_flags_band(struct ieee80211_supported_band *sband,
- enum ieee80211_band band)
-{
- int i, want;
-
- switch (band) {
- case IEEE80211_BAND_5GHZ:
- want = 3;
- for (i = 0; i < sband->n_bitrates; i++) {
- if (sband->bitrates[i].bitrate == 60 ||
- sband->bitrates[i].bitrate == 120 ||
- sband->bitrates[i].bitrate == 240) {
- sband->bitrates[i].flags |=
- IEEE80211_RATE_MANDATORY_A;
- want--;
- }
- }
- WARN_ON(want);
- break;
- case IEEE80211_BAND_2GHZ:
- want = 7;
- for (i = 0; i < sband->n_bitrates; i++) {
- if (sband->bitrates[i].bitrate == 10) {
- sband->bitrates[i].flags |=
- IEEE80211_RATE_MANDATORY_B |
- IEEE80211_RATE_MANDATORY_G;
- want--;
- }
-
- if (sband->bitrates[i].bitrate == 20 ||
- sband->bitrates[i].bitrate == 55 ||
- sband->bitrates[i].bitrate == 110 ||
- sband->bitrates[i].bitrate == 60 ||
- sband->bitrates[i].bitrate == 120 ||
- sband->bitrates[i].bitrate == 240) {
- sband->bitrates[i].flags |=
- IEEE80211_RATE_MANDATORY_G;
- want--;
- }
-
- if (sband->bitrates[i].bitrate != 10 &&
- sband->bitrates[i].bitrate != 20 &&
- sband->bitrates[i].bitrate != 55 &&
- sband->bitrates[i].bitrate != 110)
- sband->bitrates[i].flags |=
- IEEE80211_RATE_ERP_G;
- }
- WARN_ON(want != 0 && want != 3 && want != 6);
- break;
- case IEEE80211_NUM_BANDS:
- WARN_ON(1);
- break;
- }
-}
-
-void ieee80211_set_bitrate_flags(struct wiphy *wiphy)
-{
- enum ieee80211_band band;
-
- for (band = 0; band < IEEE80211_NUM_BANDS; band++)
- if (wiphy->bands[band])
- set_mandatory_flags_band(wiphy->bands[band], band);
-}
+++ /dev/null
-/*
- * This file implement the Wireless Extensions APIs.
- *
- * Authors : Jean Tourrilhes - HPL - <jt@hpl.hp.com>
- * Copyright (c) 1997-2007 Jean Tourrilhes, All Rights Reserved.
- *
- * (As all part of the Linux kernel, this file is GPL)
- */
-
-/************************** DOCUMENTATION **************************/
-/*
- * API definition :
- * --------------
- * See <linux/wireless.h> for details of the APIs and the rest.
- *
- * History :
- * -------
- *
- * v1 - 5.12.01 - Jean II
- * o Created this file.
- *
- * v2 - 13.12.01 - Jean II
- * o Move /proc/net/wireless stuff from net/core/dev.c to here
- * o Make Wireless Extension IOCTLs go through here
- * o Added iw_handler handling ;-)
- * o Added standard ioctl description
- * o Initial dumb commit strategy based on orinoco.c
- *
- * v3 - 19.12.01 - Jean II
- * o Make sure we don't go out of standard_ioctl[] in ioctl_standard_call
- * o Add event dispatcher function
- * o Add event description
- * o Propagate events as rtnetlink IFLA_WIRELESS option
- * o Generate event on selected SET requests
- *
- * v4 - 18.04.02 - Jean II
- * o Fix stupid off by one in iw_ioctl_description : IW_ESSID_MAX_SIZE + 1
- *
- * v5 - 21.06.02 - Jean II
- * o Add IW_PRIV_TYPE_ADDR in priv_type_size (+cleanup)
- * o Reshuffle IW_HEADER_TYPE_XXX to map IW_PRIV_TYPE_XXX changes
- * o Add IWEVCUSTOM for driver specific event/scanning token
- * o Turn on WE_STRICT_WRITE by default + kernel warning
- * o Fix WE_STRICT_WRITE in ioctl_export_private() (32 => iw_num)
- * o Fix off-by-one in test (extra_size <= IFNAMSIZ)
- *
- * v6 - 9.01.03 - Jean II
- * o Add common spy support : iw_handler_set_spy(), wireless_spy_update()
- * o Add enhanced spy support : iw_handler_set_thrspy() and event.
- * o Add WIRELESS_EXT version display in /proc/net/wireless
- *
- * v6 - 18.06.04 - Jean II
- * o Change get_spydata() method for added safety
- * o Remove spy #ifdef, they are always on -> cleaner code
- * o Allow any size GET request if user specifies length > max
- * and if request has IW_DESCR_FLAG_NOMAX flag or is SIOCGIWPRIV
- * o Start migrating get_wireless_stats to struct iw_handler_def
- * o Add wmb() in iw_handler_set_spy() for non-coherent archs/cpus
- * Based on patch from Pavel Roskin <proski@gnu.org> :
- * o Fix kernel data leak to user space in private handler handling
- *
- * v7 - 18.3.05 - Jean II
- * o Remove (struct iw_point *)->pointer from events and streams
- * o Remove spy_offset from struct iw_handler_def
- * o Start deprecating dev->get_wireless_stats, output a warning
- * o If IW_QUAL_DBM is set, show dBm values in /proc/net/wireless
- * o Don't loose INVALID/DBM flags when clearing UPDATED flags (iwstats)
- *
- * v8 - 17.02.06 - Jean II
- * o RtNetlink requests support (SET/GET)
- *
- * v8b - 03.08.06 - Herbert Xu
- * o Fix Wireless Event locking issues.
- *
- * v9 - 14.3.06 - Jean II
- * o Change length in ESSID and NICK to strlen() instead of strlen()+1
- * o Make standard_ioctl_num and standard_event_num unsigned
- * o Remove (struct net_device *)->get_wireless_stats()
- *
- * v10 - 16.3.07 - Jean II
- * o Prevent leaking of kernel space in stream on 64 bits.
- */
-
-/***************************** INCLUDES *****************************/
-
-#include <linux/module.h>
-#include <linux/types.h> /* off_t */
-#include <linux/netdevice.h> /* struct ifreq, dev_get_by_name() */
-#include <linux/proc_fs.h>
-#include <linux/rtnetlink.h> /* rtnetlink stuff */
-#include <linux/seq_file.h>
-#include <linux/init.h> /* for __init */
-#include <linux/if_arp.h> /* ARPHRD_ETHER */
-#include <linux/etherdevice.h> /* compare_ether_addr */
-#include <linux/interrupt.h>
-#include <net/net_namespace.h>
-
-#include <linux/wireless.h> /* Pretty obvious */
-#include <net/iw_handler.h> /* New driver API */
-#include <net/netlink.h>
-#include <net/wext.h>
-
-#include <asm/uaccess.h> /* copy_to_user() */
-
-/************************* GLOBAL VARIABLES *************************/
-/*
- * You should not use global variables, because of re-entrancy.
- * On our case, it's only const, so it's OK...
- */
-/*
- * Meta-data about all the standard Wireless Extension request we
- * know about.
- */
-static const struct iw_ioctl_description standard_ioctl[] = {
- [SIOCSIWCOMMIT - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_NULL,
- },
- [SIOCGIWNAME - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_CHAR,
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWNWID - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- .flags = IW_DESCR_FLAG_EVENT,
- },
- [SIOCGIWNWID - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWFREQ - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_FREQ,
- .flags = IW_DESCR_FLAG_EVENT,
- },
- [SIOCGIWFREQ - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_FREQ,
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWMODE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_UINT,
- .flags = IW_DESCR_FLAG_EVENT,
- },
- [SIOCGIWMODE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_UINT,
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWSENS - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWSENS - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWRANGE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_NULL,
- },
- [SIOCGIWRANGE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = sizeof(struct iw_range),
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWPRIV - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_NULL,
- },
- [SIOCGIWPRIV - SIOCIWFIRST] = { /* (handled directly by us) */
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = sizeof(struct iw_priv_args),
- .max_tokens = 16,
- .flags = IW_DESCR_FLAG_NOMAX,
- },
- [SIOCSIWSTATS - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_NULL,
- },
- [SIOCGIWSTATS - SIOCIWFIRST] = { /* (handled directly by us) */
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = sizeof(struct iw_statistics),
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWSPY - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = sizeof(struct sockaddr),
- .max_tokens = IW_MAX_SPY,
- },
- [SIOCGIWSPY - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = sizeof(struct sockaddr) +
- sizeof(struct iw_quality),
- .max_tokens = IW_MAX_SPY,
- },
- [SIOCSIWTHRSPY - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = sizeof(struct iw_thrspy),
- .min_tokens = 1,
- .max_tokens = 1,
- },
- [SIOCGIWTHRSPY - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = sizeof(struct iw_thrspy),
- .min_tokens = 1,
- .max_tokens = 1,
- },
- [SIOCSIWAP - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_ADDR,
- },
- [SIOCGIWAP - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_ADDR,
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWMLME - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .min_tokens = sizeof(struct iw_mlme),
- .max_tokens = sizeof(struct iw_mlme),
- },
- [SIOCGIWAPLIST - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = sizeof(struct sockaddr) +
- sizeof(struct iw_quality),
- .max_tokens = IW_MAX_AP,
- .flags = IW_DESCR_FLAG_NOMAX,
- },
- [SIOCSIWSCAN - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .min_tokens = 0,
- .max_tokens = sizeof(struct iw_scan_req),
- },
- [SIOCGIWSCAN - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_SCAN_MAX_DATA,
- .flags = IW_DESCR_FLAG_NOMAX,
- },
- [SIOCSIWESSID - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_ESSID_MAX_SIZE,
- .flags = IW_DESCR_FLAG_EVENT,
- },
- [SIOCGIWESSID - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_ESSID_MAX_SIZE,
- .flags = IW_DESCR_FLAG_DUMP,
- },
- [SIOCSIWNICKN - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_ESSID_MAX_SIZE,
- },
- [SIOCGIWNICKN - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_ESSID_MAX_SIZE,
- },
- [SIOCSIWRATE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWRATE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWRTS - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWRTS - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWFRAG - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWFRAG - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWTXPOW - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWTXPOW - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWRETRY - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWRETRY - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWENCODE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_ENCODING_TOKEN_MAX,
- .flags = IW_DESCR_FLAG_EVENT | IW_DESCR_FLAG_RESTRICT,
- },
- [SIOCGIWENCODE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_ENCODING_TOKEN_MAX,
- .flags = IW_DESCR_FLAG_DUMP | IW_DESCR_FLAG_RESTRICT,
- },
- [SIOCSIWPOWER - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWPOWER - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWGENIE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_GENERIC_IE_MAX,
- },
- [SIOCGIWGENIE - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_GENERIC_IE_MAX,
- },
- [SIOCSIWAUTH - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCGIWAUTH - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_PARAM,
- },
- [SIOCSIWENCODEEXT - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .min_tokens = sizeof(struct iw_encode_ext),
- .max_tokens = sizeof(struct iw_encode_ext) +
- IW_ENCODING_TOKEN_MAX,
- },
- [SIOCGIWENCODEEXT - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .min_tokens = sizeof(struct iw_encode_ext),
- .max_tokens = sizeof(struct iw_encode_ext) +
- IW_ENCODING_TOKEN_MAX,
- },
- [SIOCSIWPMKSA - SIOCIWFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .min_tokens = sizeof(struct iw_pmksa),
- .max_tokens = sizeof(struct iw_pmksa),
- },
-};
-static const unsigned standard_ioctl_num = ARRAY_SIZE(standard_ioctl);
-
-/*
- * Meta-data about all the additional standard Wireless Extension events
- * we know about.
- */
-static const struct iw_ioctl_description standard_event[] = {
- [IWEVTXDROP - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_ADDR,
- },
- [IWEVQUAL - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_QUAL,
- },
- [IWEVCUSTOM - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_CUSTOM_MAX,
- },
- [IWEVREGISTERED - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_ADDR,
- },
- [IWEVEXPIRED - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_ADDR,
- },
- [IWEVGENIE - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_GENERIC_IE_MAX,
- },
- [IWEVMICHAELMICFAILURE - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = sizeof(struct iw_michaelmicfailure),
- },
- [IWEVASSOCREQIE - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_GENERIC_IE_MAX,
- },
- [IWEVASSOCRESPIE - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = IW_GENERIC_IE_MAX,
- },
- [IWEVPMKIDCAND - IWEVFIRST] = {
- .header_type = IW_HEADER_TYPE_POINT,
- .token_size = 1,
- .max_tokens = sizeof(struct iw_pmkid_cand),
- },
-};
-static const unsigned standard_event_num = ARRAY_SIZE(standard_event);
-
-/* Size (in bytes) of the various private data types */
-static const char iw_priv_type_size[] = {
- 0, /* IW_PRIV_TYPE_NONE */
- 1, /* IW_PRIV_TYPE_BYTE */
- 1, /* IW_PRIV_TYPE_CHAR */
- 0, /* Not defined */
- sizeof(__u32), /* IW_PRIV_TYPE_INT */
- sizeof(struct iw_freq), /* IW_PRIV_TYPE_FLOAT */
- sizeof(struct sockaddr), /* IW_PRIV_TYPE_ADDR */
- 0, /* Not defined */
-};
-
-/* Size (in bytes) of various events */
-static const int event_type_size[] = {
- IW_EV_LCP_LEN, /* IW_HEADER_TYPE_NULL */
- 0,
- IW_EV_CHAR_LEN, /* IW_HEADER_TYPE_CHAR */
- 0,
- IW_EV_UINT_LEN, /* IW_HEADER_TYPE_UINT */
- IW_EV_FREQ_LEN, /* IW_HEADER_TYPE_FREQ */
- IW_EV_ADDR_LEN, /* IW_HEADER_TYPE_ADDR */
- 0,
- IW_EV_POINT_LEN, /* Without variable payload */
- IW_EV_PARAM_LEN, /* IW_HEADER_TYPE_PARAM */
- IW_EV_QUAL_LEN, /* IW_HEADER_TYPE_QUAL */
-};
-
-
-/************************ COMMON SUBROUTINES ************************/
-/*
- * Stuff that may be used in various place or doesn't fit in one
- * of the section below.
- */
-
-/* ---------------------------------------------------------------- */
-/*
- * Return the driver handler associated with a specific Wireless Extension.
- */
-static iw_handler get_handler(struct net_device *dev, unsigned int cmd)
-{
- /* Don't "optimise" the following variable, it will crash */
- unsigned int index; /* *MUST* be unsigned */
-
- /* Check if we have some wireless handlers defined */
- if (dev->wireless_handlers == NULL)
- return NULL;
-
- /* Try as a standard command */
- index = cmd - SIOCIWFIRST;
- if (index < dev->wireless_handlers->num_standard)
- return dev->wireless_handlers->standard[index];
-
- /* Try as a private command */
- index = cmd - SIOCIWFIRSTPRIV;
- if (index < dev->wireless_handlers->num_private)
- return dev->wireless_handlers->private[index];
-
- /* Not found */
- return NULL;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Get statistics out of the driver
- */
-static struct iw_statistics *get_wireless_stats(struct net_device *dev)
-{
- /* New location */
- if ((dev->wireless_handlers != NULL) &&
- (dev->wireless_handlers->get_wireless_stats != NULL))
- return dev->wireless_handlers->get_wireless_stats(dev);
-
- /* Not found */
- return NULL;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Call the commit handler in the driver
- * (if exist and if conditions are right)
- *
- * Note : our current commit strategy is currently pretty dumb,
- * but we will be able to improve on that...
- * The goal is to try to agreagate as many changes as possible
- * before doing the commit. Drivers that will define a commit handler
- * are usually those that need a reset after changing parameters, so
- * we want to minimise the number of reset.
- * A cool idea is to use a timer : at each "set" command, we re-set the
- * timer, when the timer eventually fires, we call the driver.
- * Hopefully, more on that later.
- *
- * Also, I'm waiting to see how many people will complain about the
- * netif_running(dev) test. I'm open on that one...
- * Hopefully, the driver will remember to do a commit in "open()" ;-)
- */
-static int call_commit_handler(struct net_device *dev)
-{
- if ((netif_running(dev)) &&
- (dev->wireless_handlers->standard[0] != NULL))
- /* Call the commit handler on the driver */
- return dev->wireless_handlers->standard[0](dev, NULL,
- NULL, NULL);
- else
- return 0; /* Command completed successfully */
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Calculate size of private arguments
- */
-static inline int get_priv_size(__u16 args)
-{
- int num = args & IW_PRIV_SIZE_MASK;
- int type = (args & IW_PRIV_TYPE_MASK) >> 12;
-
- return num * iw_priv_type_size[type];
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Re-calculate the size of private arguments
- */
-static inline int adjust_priv_size(__u16 args,
- union iwreq_data * wrqu)
-{
- int num = wrqu->data.length;
- int max = args & IW_PRIV_SIZE_MASK;
- int type = (args & IW_PRIV_TYPE_MASK) >> 12;
-
- /* Make sure the driver doesn't goof up */
- if (max < num)
- num = max;
-
- return num * iw_priv_type_size[type];
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Standard Wireless Handler : get wireless stats
- * Allow programatic access to /proc/net/wireless even if /proc
- * doesn't exist... Also more efficient...
- */
-static int iw_handler_get_iwstats(struct net_device * dev,
- struct iw_request_info * info,
- union iwreq_data * wrqu,
- char * extra)
-{
- /* Get stats from the driver */
- struct iw_statistics *stats;
-
- stats = get_wireless_stats(dev);
- if (stats) {
- /* Copy statistics to extra */
- memcpy(extra, stats, sizeof(struct iw_statistics));
- wrqu->data.length = sizeof(struct iw_statistics);
-
- /* Check if we need to clear the updated flag */
- if (wrqu->data.flags != 0)
- stats->qual.updated &= ~IW_QUAL_ALL_UPDATED;
- return 0;
- } else
- return -EOPNOTSUPP;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Standard Wireless Handler : get iwpriv definitions
- * Export the driver private handler definition
- * They will be picked up by tools like iwpriv...
- */
-static int iw_handler_get_private(struct net_device * dev,
- struct iw_request_info * info,
- union iwreq_data * wrqu,
- char * extra)
-{
- /* Check if the driver has something to export */
- if ((dev->wireless_handlers->num_private_args == 0) ||
- (dev->wireless_handlers->private_args == NULL))
- return -EOPNOTSUPP;
-
- /* Check if there is enough buffer up there */
- if (wrqu->data.length < dev->wireless_handlers->num_private_args) {
- /* User space can't know in advance how large the buffer
- * needs to be. Give it a hint, so that we can support
- * any size buffer we want somewhat efficiently... */
- wrqu->data.length = dev->wireless_handlers->num_private_args;
- return -E2BIG;
- }
-
- /* Set the number of available ioctls. */
- wrqu->data.length = dev->wireless_handlers->num_private_args;
-
- /* Copy structure to the user buffer. */
- memcpy(extra, dev->wireless_handlers->private_args,
- sizeof(struct iw_priv_args) * wrqu->data.length);
-
- return 0;
-}
-
-
-/******************** /proc/net/wireless SUPPORT ********************/
-/*
- * The /proc/net/wireless file is a human readable user-space interface
- * exporting various wireless specific statistics from the wireless devices.
- * This is the most popular part of the Wireless Extensions ;-)
- *
- * This interface is a pure clone of /proc/net/dev (in net/core/dev.c).
- * The content of the file is basically the content of "struct iw_statistics".
- */
-
-#ifdef CONFIG_PROC_FS
-
-/* ---------------------------------------------------------------- */
-/*
- * Print one entry (line) of /proc/net/wireless
- */
-static void wireless_seq_printf_stats(struct seq_file *seq,
- struct net_device *dev)
-{
- /* Get stats from the driver */
- struct iw_statistics *stats = get_wireless_stats(dev);
-
- if (stats) {
- seq_printf(seq, "%6s: %04x %3d%c %3d%c %3d%c %6d %6d %6d "
- "%6d %6d %6d\n",
- dev->name, stats->status, stats->qual.qual,
- stats->qual.updated & IW_QUAL_QUAL_UPDATED
- ? '.' : ' ',
- ((__s32) stats->qual.level) -
- ((stats->qual.updated & IW_QUAL_DBM) ? 0x100 : 0),
- stats->qual.updated & IW_QUAL_LEVEL_UPDATED
- ? '.' : ' ',
- ((__s32) stats->qual.noise) -
- ((stats->qual.updated & IW_QUAL_DBM) ? 0x100 : 0),
- stats->qual.updated & IW_QUAL_NOISE_UPDATED
- ? '.' : ' ',
- stats->discard.nwid, stats->discard.code,
- stats->discard.fragment, stats->discard.retries,
- stats->discard.misc, stats->miss.beacon);
- stats->qual.updated &= ~IW_QUAL_ALL_UPDATED;
- }
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Print info for /proc/net/wireless (print all entries)
- */
-static int wireless_seq_show(struct seq_file *seq, void *v)
-{
- if (v == SEQ_START_TOKEN)
- seq_printf(seq, "Inter-| sta-| Quality | Discarded "
- "packets | Missed | WE\n"
- " face | tus | link level noise | nwid "
- "crypt frag retry misc | beacon | %d\n",
- WIRELESS_EXT);
- else
- wireless_seq_printf_stats(seq, v);
- return 0;
-}
-
-static const struct seq_operations wireless_seq_ops = {
- .start = dev_seq_start,
- .next = dev_seq_next,
- .stop = dev_seq_stop,
- .show = wireless_seq_show,
-};
-
-static int wireless_seq_open(struct inode *inode, struct file *file)
-{
- struct seq_file *seq;
- int res;
- res = seq_open(file, &wireless_seq_ops);
- if (!res) {
- seq = file->private_data;
- seq->private = get_proc_net(inode);
- if (!seq->private) {
- seq_release(inode, file);
- res = -ENXIO;
- }
- }
- return res;
-}
-
-static int wireless_seq_release(struct inode *inode, struct file *file)
-{
- struct seq_file *seq = file->private_data;
- struct net *net = seq->private;
- put_net(net);
- return seq_release(inode, file);
-}
-
-static const struct file_operations wireless_seq_fops = {
- .owner = THIS_MODULE,
- .open = wireless_seq_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = wireless_seq_release,
-};
-
-int wext_proc_init(struct net *net)
-{
- /* Create /proc/net/wireless entry */
- if (!proc_net_fops_create(net, "wireless", S_IRUGO, &wireless_seq_fops))
- return -ENOMEM;
-
- return 0;
-}
-
-void wext_proc_exit(struct net *net)
-{
- proc_net_remove(net, "wireless");
-}
-#endif /* CONFIG_PROC_FS */
-
-/************************** IOCTL SUPPORT **************************/
-/*
- * The original user space API to configure all those Wireless Extensions
- * is through IOCTLs.
- * In there, we check if we need to call the new driver API (iw_handler)
- * or just call the driver ioctl handler.
- */
-
-/* ---------------------------------------------------------------- */
-/*
- * Wrapper to call a standard Wireless Extension handler.
- * We do various checks and also take care of moving data between
- * user space and kernel space.
- */
-static int ioctl_standard_call(struct net_device * dev,
- struct ifreq * ifr,
- unsigned int cmd,
- iw_handler handler)
-{
- struct iwreq * iwr = (struct iwreq *) ifr;
- const struct iw_ioctl_description * descr;
- struct iw_request_info info;
- int ret = -EINVAL;
-
- /* Get the description of the IOCTL */
- if ((cmd - SIOCIWFIRST) >= standard_ioctl_num)
- return -EOPNOTSUPP;
- descr = &(standard_ioctl[cmd - SIOCIWFIRST]);
-
- /* Prepare the call */
- info.cmd = cmd;
- info.flags = 0;
-
- /* Check if we have a pointer to user space data or not */
- if (descr->header_type != IW_HEADER_TYPE_POINT) {
-
- /* No extra arguments. Trivial to handle */
- ret = handler(dev, &info, &(iwr->u), NULL);
-
- /* Generate an event to notify listeners of the change */
- if ((descr->flags & IW_DESCR_FLAG_EVENT) &&
- ((ret == 0) || (ret == -EIWCOMMIT)))
- wireless_send_event(dev, cmd, &(iwr->u), NULL);
- } else {
- char * extra;
- int extra_size;
- int user_length = 0;
- int err;
- int essid_compat = 0;
-
- /* Calculate space needed by arguments. Always allocate
- * for max space. Easier, and won't last long... */
- extra_size = descr->max_tokens * descr->token_size;
-
- /* Check need for ESSID compatibility for WE < 21 */
- switch (cmd) {
- case SIOCSIWESSID:
- case SIOCGIWESSID:
- case SIOCSIWNICKN:
- case SIOCGIWNICKN:
- if (iwr->u.data.length == descr->max_tokens + 1)
- essid_compat = 1;
- else if (IW_IS_SET(cmd) && (iwr->u.data.length != 0)) {
- char essid[IW_ESSID_MAX_SIZE + 1];
-
- err = copy_from_user(essid, iwr->u.data.pointer,
- iwr->u.data.length *
- descr->token_size);
- if (err)
- return -EFAULT;
-
- if (essid[iwr->u.data.length - 1] == '\0')
- essid_compat = 1;
- }
- break;
- default:
- break;
- }
-
- iwr->u.data.length -= essid_compat;
-
- /* Check what user space is giving us */
- if (IW_IS_SET(cmd)) {
- /* Check NULL pointer */
- if ((iwr->u.data.pointer == NULL) &&
- (iwr->u.data.length != 0))
- return -EFAULT;
- /* Check if number of token fits within bounds */
- if (iwr->u.data.length > descr->max_tokens)
- return -E2BIG;
- if (iwr->u.data.length < descr->min_tokens)
- return -EINVAL;
- } else {
- /* Check NULL pointer */
- if (iwr->u.data.pointer == NULL)
- return -EFAULT;
- /* Save user space buffer size for checking */
- user_length = iwr->u.data.length;
-
- /* Don't check if user_length > max to allow forward
- * compatibility. The test user_length < min is
- * implied by the test at the end. */
-
- /* Support for very large requests */
- if ((descr->flags & IW_DESCR_FLAG_NOMAX) &&
- (user_length > descr->max_tokens)) {
- /* Allow userspace to GET more than max so
- * we can support any size GET requests.
- * There is still a limit : -ENOMEM. */
- extra_size = user_length * descr->token_size;
- /* Note : user_length is originally a __u16,
- * and token_size is controlled by us,
- * so extra_size won't get negative and
- * won't overflow... */
- }
- }
-
- /* Create the kernel buffer */
- /* kzalloc ensures NULL-termination for essid_compat */
- extra = kzalloc(extra_size, GFP_KERNEL);
- if (extra == NULL)
- return -ENOMEM;
-
- /* If it is a SET, get all the extra data in here */
- if (IW_IS_SET(cmd) && (iwr->u.data.length != 0)) {
- err = copy_from_user(extra, iwr->u.data.pointer,
- iwr->u.data.length *
- descr->token_size);
- if (err) {
- kfree(extra);
- return -EFAULT;
- }
- }
-
- /* Call the handler */
- ret = handler(dev, &info, &(iwr->u), extra);
-
- iwr->u.data.length += essid_compat;
-
- /* If we have something to return to the user */
- if (!ret && IW_IS_GET(cmd)) {
- /* Check if there is enough buffer up there */
- if (user_length < iwr->u.data.length) {
- kfree(extra);
- return -E2BIG;
- }
-
- err = copy_to_user(iwr->u.data.pointer, extra,
- iwr->u.data.length *
- descr->token_size);
- if (err)
- ret = -EFAULT;
- }
-
- /* Generate an event to notify listeners of the change */
- if ((descr->flags & IW_DESCR_FLAG_EVENT) &&
- ((ret == 0) || (ret == -EIWCOMMIT))) {
- if (descr->flags & IW_DESCR_FLAG_RESTRICT)
- /* If the event is restricted, don't
- * export the payload */
- wireless_send_event(dev, cmd, &(iwr->u), NULL);
- else
- wireless_send_event(dev, cmd, &(iwr->u),
- extra);
- }
-
- /* Cleanup - I told you it wasn't that long ;-) */
- kfree(extra);
- }
-
- /* Call commit handler if needed and defined */
- if (ret == -EIWCOMMIT)
- ret = call_commit_handler(dev);
-
- /* Here, we will generate the appropriate event if needed */
-
- return ret;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Wrapper to call a private Wireless Extension handler.
- * We do various checks and also take care of moving data between
- * user space and kernel space.
- * It's not as nice and slimline as the standard wrapper. The cause
- * is struct iw_priv_args, which was not really designed for the
- * job we are going here.
- *
- * IMPORTANT : This function prevent to set and get data on the same
- * IOCTL and enforce the SET/GET convention. Not doing it would be
- * far too hairy...
- * If you need to set and get data at the same time, please don't use
- * a iw_handler but process it in your ioctl handler (i.e. use the
- * old driver API).
- */
-static int ioctl_private_call(struct net_device *dev, struct ifreq *ifr,
- unsigned int cmd, iw_handler handler)
-{
- struct iwreq * iwr = (struct iwreq *) ifr;
- const struct iw_priv_args * descr = NULL;
- struct iw_request_info info;
- int extra_size = 0;
- int i;
- int ret = -EINVAL;
-
- /* Get the description of the IOCTL */
- for (i = 0; i < dev->wireless_handlers->num_private_args; i++)
- if (cmd == dev->wireless_handlers->private_args[i].cmd) {
- descr = &(dev->wireless_handlers->private_args[i]);
- break;
- }
-
- /* Compute the size of the set/get arguments */
- if (descr != NULL) {
- if (IW_IS_SET(cmd)) {
- int offset = 0; /* For sub-ioctls */
- /* Check for sub-ioctl handler */
- if (descr->name[0] == '\0')
- /* Reserve one int for sub-ioctl index */
- offset = sizeof(__u32);
-
- /* Size of set arguments */
- extra_size = get_priv_size(descr->set_args);
-
- /* Does it fits in iwr ? */
- if ((descr->set_args & IW_PRIV_SIZE_FIXED) &&
- ((extra_size + offset) <= IFNAMSIZ))
- extra_size = 0;
- } else {
- /* Size of get arguments */
- extra_size = get_priv_size(descr->get_args);
-
- /* Does it fits in iwr ? */
- if ((descr->get_args & IW_PRIV_SIZE_FIXED) &&
- (extra_size <= IFNAMSIZ))
- extra_size = 0;
- }
- }
-
- /* Prepare the call */
- info.cmd = cmd;
- info.flags = 0;
-
- /* Check if we have a pointer to user space data or not. */
- if (extra_size == 0) {
- /* No extra arguments. Trivial to handle */
- ret = handler(dev, &info, &(iwr->u), (char *) &(iwr->u));
- } else {
- char * extra;
- int err;
-
- /* Check what user space is giving us */
- if (IW_IS_SET(cmd)) {
- /* Check NULL pointer */
- if ((iwr->u.data.pointer == NULL) &&
- (iwr->u.data.length != 0))
- return -EFAULT;
-
- /* Does it fits within bounds ? */
- if (iwr->u.data.length > (descr->set_args &
- IW_PRIV_SIZE_MASK))
- return -E2BIG;
- } else if (iwr->u.data.pointer == NULL)
- return -EFAULT;
-
- /* Always allocate for max space. Easier, and won't last
- * long... */
- extra = kmalloc(extra_size, GFP_KERNEL);
- if (extra == NULL)
- return -ENOMEM;
-
- /* If it is a SET, get all the extra data in here */
- if (IW_IS_SET(cmd) && (iwr->u.data.length != 0)) {
- err = copy_from_user(extra, iwr->u.data.pointer,
- extra_size);
- if (err) {
- kfree(extra);
- return -EFAULT;
- }
- }
-
- /* Call the handler */
- ret = handler(dev, &info, &(iwr->u), extra);
-
- /* If we have something to return to the user */
- if (!ret && IW_IS_GET(cmd)) {
-
- /* Adjust for the actual length if it's variable,
- * avoid leaking kernel bits outside. */
- if (!(descr->get_args & IW_PRIV_SIZE_FIXED)) {
- extra_size = adjust_priv_size(descr->get_args,
- &(iwr->u));
- }
-
- err = copy_to_user(iwr->u.data.pointer, extra,
- extra_size);
- if (err)
- ret = -EFAULT;
- }
-
- /* Cleanup - I told you it wasn't that long ;-) */
- kfree(extra);
- }
-
-
- /* Call commit handler if needed and defined */
- if (ret == -EIWCOMMIT)
- ret = call_commit_handler(dev);
-
- return ret;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Main IOCTl dispatcher.
- * Check the type of IOCTL and call the appropriate wrapper...
- */
-static int wireless_process_ioctl(struct net *net, struct ifreq *ifr, unsigned int cmd)
-{
- struct net_device *dev;
- iw_handler handler;
-
- /* Permissions are already checked in dev_ioctl() before calling us.
- * The copy_to/from_user() of ifr is also dealt with in there */
-
- /* Make sure the device exist */
- if ((dev = __dev_get_by_name(net, ifr->ifr_name)) == NULL)
- return -ENODEV;
-
- /* A bunch of special cases, then the generic case...
- * Note that 'cmd' is already filtered in dev_ioctl() with
- * (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST) */
- if (cmd == SIOCGIWSTATS)
- return ioctl_standard_call(dev, ifr, cmd,
- &iw_handler_get_iwstats);
-
- if (cmd == SIOCGIWPRIV && dev->wireless_handlers)
- return ioctl_standard_call(dev, ifr, cmd,
- &iw_handler_get_private);
-
- /* Basic check */
- if (!netif_device_present(dev))
- return -ENODEV;
-
- /* New driver API : try to find the handler */
- handler = get_handler(dev, cmd);
- if (handler) {
- /* Standard and private are not the same */
- if (cmd < SIOCIWFIRSTPRIV)
- return ioctl_standard_call(dev, ifr, cmd, handler);
- else
- return ioctl_private_call(dev, ifr, cmd, handler);
- }
- /* Old driver API : call driver ioctl handler */
- if (dev->do_ioctl)
- return dev->do_ioctl(dev, ifr, cmd);
- return -EOPNOTSUPP;
-}
-
-/* entry point from dev ioctl */
-int wext_handle_ioctl(struct net *net, struct ifreq *ifr, unsigned int cmd,
- void __user *arg)
-{
- int ret;
-
- /* If command is `set a parameter', or
- * `get the encoding parameters', check if
- * the user has the right to do it */
- if ((IW_IS_SET(cmd) || cmd == SIOCGIWENCODE || cmd == SIOCGIWENCODEEXT)
- && !capable(CAP_NET_ADMIN))
- return -EPERM;
-
- dev_load(net, ifr->ifr_name);
- rtnl_lock();
- ret = wireless_process_ioctl(net, ifr, cmd);
- rtnl_unlock();
- if (IW_IS_GET(cmd) && copy_to_user(arg, ifr, sizeof(struct iwreq)))
- return -EFAULT;
- return ret;
-}
-
-/************************* EVENT PROCESSING *************************/
-/*
- * Process events generated by the wireless layer or the driver.
- * Most often, the event will be propagated through rtnetlink
- */
-
-/* ---------------------------------------------------------------- */
-/*
- * Locking...
- * ----------
- *
- * Thanks to Herbert Xu <herbert@gondor.apana.org.au> for fixing
- * the locking issue in here and implementing this code !
- *
- * The issue : wireless_send_event() is often called in interrupt context,
- * while the Netlink layer can never be called in interrupt context.
- * The fully formed RtNetlink events are queued, and then a tasklet is run
- * to feed those to Netlink.
- * The skb_queue is interrupt safe, and its lock is not held while calling
- * Netlink, so there is no possibility of dealock.
- * Jean II
- */
-
-static struct sk_buff_head wireless_nlevent_queue;
-
-static int __init wireless_nlevent_init(void)
-{
- skb_queue_head_init(&wireless_nlevent_queue);
- return 0;
-}
-
-subsys_initcall(wireless_nlevent_init);
-
-static void wireless_nlevent_process(unsigned long data)
-{
- struct sk_buff *skb;
-
- while ((skb = skb_dequeue(&wireless_nlevent_queue)))
- rtnl_notify(skb, 0, RTNLGRP_LINK, NULL, GFP_ATOMIC);
-}
-
-static DECLARE_TASKLET(wireless_nlevent_tasklet, wireless_nlevent_process, 0);
-
-/* ---------------------------------------------------------------- */
-/*
- * Fill a rtnetlink message with our event data.
- * Note that we propage only the specified event and don't dump the
- * current wireless config. Dumping the wireless config is far too
- * expensive (for each parameter, the driver need to query the hardware).
- */
-static int rtnetlink_fill_iwinfo(struct sk_buff *skb, struct net_device *dev,
- int type, char *event, int event_len)
-{
- struct ifinfomsg *r;
- struct nlmsghdr *nlh;
-
- nlh = nlmsg_put(skb, 0, 0, type, sizeof(*r), 0);
- if (nlh == NULL)
- return -EMSGSIZE;
-
- r = nlmsg_data(nlh);
- r->ifi_family = AF_UNSPEC;
- r->__ifi_pad = 0;
- r->ifi_type = dev->type;
- r->ifi_index = dev->ifindex;
- r->ifi_flags = dev_get_flags(dev);
- r->ifi_change = 0; /* Wireless changes don't affect those flags */
-
- /* Add the wireless events in the netlink packet */
- NLA_PUT(skb, IFLA_WIRELESS, event_len, event);
-
- return nlmsg_end(skb, nlh);
-
-nla_put_failure:
- nlmsg_cancel(skb, nlh);
- return -EMSGSIZE;
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Create and broadcast and send it on the standard rtnetlink socket
- * This is a pure clone rtmsg_ifinfo() in net/core/rtnetlink.c
- * Andrzej Krzysztofowicz mandated that I used a IFLA_XXX field
- * within a RTM_NEWLINK event.
- */
-static void rtmsg_iwinfo(struct net_device *dev, char *event, int event_len)
-{
- struct sk_buff *skb;
- int err;
-
- skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
- if (!skb)
- return;
-
- err = rtnetlink_fill_iwinfo(skb, dev, RTM_NEWLINK, event, event_len);
- if (err < 0) {
- WARN_ON(err == -EMSGSIZE);
- kfree_skb(skb);
- return;
- }
-
- NETLINK_CB(skb).dst_group = RTNLGRP_LINK;
- skb_queue_tail(&wireless_nlevent_queue, skb);
- tasklet_schedule(&wireless_nlevent_tasklet);
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Main event dispatcher. Called from other parts and drivers.
- * Send the event on the appropriate channels.
- * May be called from interrupt context.
- */
-void wireless_send_event(struct net_device * dev,
- unsigned int cmd,
- union iwreq_data * wrqu,
- char * extra)
-{
- const struct iw_ioctl_description * descr = NULL;
- int extra_len = 0;
- struct iw_event *event; /* Mallocated whole event */
- int event_len; /* Its size */
- int hdr_len; /* Size of the event header */
- int wrqu_off = 0; /* Offset in wrqu */
- /* Don't "optimise" the following variable, it will crash */
- unsigned cmd_index; /* *MUST* be unsigned */
-
- /* Get the description of the Event */
- if (cmd <= SIOCIWLAST) {
- cmd_index = cmd - SIOCIWFIRST;
- if (cmd_index < standard_ioctl_num)
- descr = &(standard_ioctl[cmd_index]);
- } else {
- cmd_index = cmd - IWEVFIRST;
- if (cmd_index < standard_event_num)
- descr = &(standard_event[cmd_index]);
- }
- /* Don't accept unknown events */
- if (descr == NULL) {
- /* Note : we don't return an error to the driver, because
- * the driver would not know what to do about it. It can't
- * return an error to the user, because the event is not
- * initiated by a user request.
- * The best the driver could do is to log an error message.
- * We will do it ourselves instead...
- */
- printk(KERN_ERR "%s (WE) : Invalid/Unknown Wireless Event (0x%04X)\n",
- dev->name, cmd);
- return;
- }
-
- /* Check extra parameters and set extra_len */
- if (descr->header_type == IW_HEADER_TYPE_POINT) {
- /* Check if number of token fits within bounds */
- if (wrqu->data.length > descr->max_tokens) {
- printk(KERN_ERR "%s (WE) : Wireless Event too big (%d)\n", dev->name, wrqu->data.length);
- return;
- }
- if (wrqu->data.length < descr->min_tokens) {
- printk(KERN_ERR "%s (WE) : Wireless Event too small (%d)\n", dev->name, wrqu->data.length);
- return;
- }
- /* Calculate extra_len - extra is NULL for restricted events */
- if (extra != NULL)
- extra_len = wrqu->data.length * descr->token_size;
- /* Always at an offset in wrqu */
- wrqu_off = IW_EV_POINT_OFF;
- }
-
- /* Total length of the event */
- hdr_len = event_type_size[descr->header_type];
- event_len = hdr_len + extra_len;
-
- /* Create temporary buffer to hold the event */
- event = kmalloc(event_len, GFP_ATOMIC);
- if (event == NULL)
- return;
-
- /* Fill event */
- event->len = event_len;
- event->cmd = cmd;
- memcpy(&event->u, ((char *) wrqu) + wrqu_off, hdr_len - IW_EV_LCP_LEN);
- if (extra)
- memcpy(((char *) event) + hdr_len, extra, extra_len);
-
- /* Send via the RtNetlink event channel */
- rtmsg_iwinfo(dev, (char *) event, event_len);
-
- /* Cleanup */
- kfree(event);
-
- return; /* Always success, I guess ;-) */
-}
-EXPORT_SYMBOL(wireless_send_event);
-
-/********************** ENHANCED IWSPY SUPPORT **********************/
-/*
- * In the old days, the driver was handling spy support all by itself.
- * Now, the driver can delegate this task to Wireless Extensions.
- * It needs to use those standard spy iw_handler in struct iw_handler_def,
- * push data to us via wireless_spy_update() and include struct iw_spy_data
- * in its private part (and export it in net_device->wireless_data->spy_data).
- * One of the main advantage of centralising spy support here is that
- * it becomes much easier to improve and extend it without having to touch
- * the drivers. One example is the addition of the Spy-Threshold events.
- */
-
-/* ---------------------------------------------------------------- */
-/*
- * Return the pointer to the spy data in the driver.
- * Because this is called on the Rx path via wireless_spy_update(),
- * we want it to be efficient...
- */
-static inline struct iw_spy_data *get_spydata(struct net_device *dev)
-{
- /* This is the new way */
- if (dev->wireless_data)
- return dev->wireless_data->spy_data;
- return NULL;
-}
-
-/*------------------------------------------------------------------*/
-/*
- * Standard Wireless Handler : set Spy List
- */
-int iw_handler_set_spy(struct net_device * dev,
- struct iw_request_info * info,
- union iwreq_data * wrqu,
- char * extra)
-{
- struct iw_spy_data * spydata = get_spydata(dev);
- struct sockaddr * address = (struct sockaddr *) extra;
-
- /* Make sure driver is not buggy or using the old API */
- if (!spydata)
- return -EOPNOTSUPP;
-
- /* Disable spy collection while we copy the addresses.
- * While we copy addresses, any call to wireless_spy_update()
- * will NOP. This is OK, as anyway the addresses are changing. */
- spydata->spy_number = 0;
-
- /* We want to operate without locking, because wireless_spy_update()
- * most likely will happen in the interrupt handler, and therefore
- * have its own locking constraints and needs performance.
- * The rtnl_lock() make sure we don't race with the other iw_handlers.
- * This make sure wireless_spy_update() "see" that the spy list
- * is temporarily disabled. */
- smp_wmb();
-
- /* Are there are addresses to copy? */
- if (wrqu->data.length > 0) {
- int i;
-
- /* Copy addresses */
- for (i = 0; i < wrqu->data.length; i++)
- memcpy(spydata->spy_address[i], address[i].sa_data,
- ETH_ALEN);
- /* Reset stats */
- memset(spydata->spy_stat, 0,
- sizeof(struct iw_quality) * IW_MAX_SPY);
- }
-
- /* Make sure above is updated before re-enabling */
- smp_wmb();
-
- /* Enable addresses */
- spydata->spy_number = wrqu->data.length;
-
- return 0;
-}
-EXPORT_SYMBOL(iw_handler_set_spy);
-
-/*------------------------------------------------------------------*/
-/*
- * Standard Wireless Handler : get Spy List
- */
-int iw_handler_get_spy(struct net_device * dev,
- struct iw_request_info * info,
- union iwreq_data * wrqu,
- char * extra)
-{
- struct iw_spy_data * spydata = get_spydata(dev);
- struct sockaddr * address = (struct sockaddr *) extra;
- int i;
-
- /* Make sure driver is not buggy or using the old API */
- if (!spydata)
- return -EOPNOTSUPP;
-
- wrqu->data.length = spydata->spy_number;
-
- /* Copy addresses. */
- for (i = 0; i < spydata->spy_number; i++) {
- memcpy(address[i].sa_data, spydata->spy_address[i], ETH_ALEN);
- address[i].sa_family = AF_UNIX;
- }
- /* Copy stats to the user buffer (just after). */
- if (spydata->spy_number > 0)
- memcpy(extra + (sizeof(struct sockaddr) *spydata->spy_number),
- spydata->spy_stat,
- sizeof(struct iw_quality) * spydata->spy_number);
- /* Reset updated flags. */
- for (i = 0; i < spydata->spy_number; i++)
- spydata->spy_stat[i].updated &= ~IW_QUAL_ALL_UPDATED;
- return 0;
-}
-EXPORT_SYMBOL(iw_handler_get_spy);
-
-/*------------------------------------------------------------------*/
-/*
- * Standard Wireless Handler : set spy threshold
- */
-int iw_handler_set_thrspy(struct net_device * dev,
- struct iw_request_info *info,
- union iwreq_data * wrqu,
- char * extra)
-{
- struct iw_spy_data * spydata = get_spydata(dev);
- struct iw_thrspy * threshold = (struct iw_thrspy *) extra;
-
- /* Make sure driver is not buggy or using the old API */
- if (!spydata)
- return -EOPNOTSUPP;
-
- /* Just do it */
- memcpy(&(spydata->spy_thr_low), &(threshold->low),
- 2 * sizeof(struct iw_quality));
-
- /* Clear flag */
- memset(spydata->spy_thr_under, '\0', sizeof(spydata->spy_thr_under));
-
- return 0;
-}
-EXPORT_SYMBOL(iw_handler_set_thrspy);
-
-/*------------------------------------------------------------------*/
-/*
- * Standard Wireless Handler : get spy threshold
- */
-int iw_handler_get_thrspy(struct net_device * dev,
- struct iw_request_info *info,
- union iwreq_data * wrqu,
- char * extra)
-{
- struct iw_spy_data * spydata = get_spydata(dev);
- struct iw_thrspy * threshold = (struct iw_thrspy *) extra;
-
- /* Make sure driver is not buggy or using the old API */
- if (!spydata)
- return -EOPNOTSUPP;
-
- /* Just do it */
- memcpy(&(threshold->low), &(spydata->spy_thr_low),
- 2 * sizeof(struct iw_quality));
-
- return 0;
-}
-EXPORT_SYMBOL(iw_handler_get_thrspy);
-
-/*------------------------------------------------------------------*/
-/*
- * Prepare and send a Spy Threshold event
- */
-static void iw_send_thrspy_event(struct net_device * dev,
- struct iw_spy_data * spydata,
- unsigned char * address,
- struct iw_quality * wstats)
-{
- union iwreq_data wrqu;
- struct iw_thrspy threshold;
-
- /* Init */
- wrqu.data.length = 1;
- wrqu.data.flags = 0;
- /* Copy address */
- memcpy(threshold.addr.sa_data, address, ETH_ALEN);
- threshold.addr.sa_family = ARPHRD_ETHER;
- /* Copy stats */
- memcpy(&(threshold.qual), wstats, sizeof(struct iw_quality));
- /* Copy also thresholds */
- memcpy(&(threshold.low), &(spydata->spy_thr_low),
- 2 * sizeof(struct iw_quality));
-
- /* Send event to user space */
- wireless_send_event(dev, SIOCGIWTHRSPY, &wrqu, (char *) &threshold);
-}
-
-/* ---------------------------------------------------------------- */
-/*
- * Call for the driver to update the spy data.
- * For now, the spy data is a simple array. As the size of the array is
- * small, this is good enough. If we wanted to support larger number of
- * spy addresses, we should use something more efficient...
- */
-void wireless_spy_update(struct net_device * dev,
- unsigned char * address,
- struct iw_quality * wstats)
-{
- struct iw_spy_data * spydata = get_spydata(dev);
- int i;
- int match = -1;
-
- /* Make sure driver is not buggy or using the old API */
- if (!spydata)
- return;
-
- /* Update all records that match */
- for (i = 0; i < spydata->spy_number; i++)
- if (!compare_ether_addr(address, spydata->spy_address[i])) {
- memcpy(&(spydata->spy_stat[i]), wstats,
- sizeof(struct iw_quality));
- match = i;
- }
-
- /* Generate an event if we cross the spy threshold.
- * To avoid event storms, we have a simple hysteresis : we generate
- * event only when we go under the low threshold or above the
- * high threshold. */
- if (match >= 0) {
- if (spydata->spy_thr_under[match]) {
- if (wstats->level > spydata->spy_thr_high.level) {
- spydata->spy_thr_under[match] = 0;
- iw_send_thrspy_event(dev, spydata,
- address, wstats);
- }
- } else {
- if (wstats->level < spydata->spy_thr_low.level) {
- spydata->spy_thr_under[match] = 1;
- iw_send_thrspy_event(dev, spydata,
- address, wstats);
- }
- }
- }
-}
-EXPORT_SYMBOL(wireless_spy_update);
projects / openwrt / openwrt.git / commitdiff