+++ /dev/null
-#
-# Copyright (C) 2006 OpenWrt.org
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
-# $Id$
-
-include $(TOPDIR)/rules.mk
-include $(INCLUDE_DIR)/kernel.mk
-
-PKG_NAME:=kmod-d80211
-PKG_VERSION:=20070201
-
-include $(INCLUDE_DIR)/package.mk
-
-define KernelPackage/d80211
- SUBMENU:=Wireless Drivers
- DEPENDS:=@LINUX_2_6 kmod-crypto
- TITLE:=DeviceScape 802.11 stack
- DESCRIPTION:=DeviceScape 802.11 stack
- VERSION:=$(LINUX_VERSION)+$(PKG_VERSION)-$(BOARD)-$(LINUX_RELEASE)
- FILES:=$(PKG_BUILD_DIR)/*.ko
- AUTOLOAD:=$(call AutoLoad,20,d80211 rc80211_simple)
-endef
-
-define Build/Prepare
- mkdir -p $(PKG_BUILD_DIR)
- $(CP) ./src/* $(PKG_BUILD_DIR)/
- $(SED) 's,INIT_WORK(,INIT_WORK_NEW(,g' $(PKG_BUILD_DIR)/*.[ch]
-endef
-
-define Build/Compile
- $(MAKE) -C "$(LINUX_DIR)" \
- CROSS_COMPILE="$(TARGET_CROSS)" \
- ARCH="$(LINUX_KARCH)" \
- SUBDIRS="$(PKG_BUILD_DIR)" \
- EXTRA_CFLAGS="-I$(PKG_BUILD_DIR)/include -include compat_hacks.h" \
- modules
-endef
-
-define Build/InstallDev
- mkdir -p $(STAGING_DIR)/usr/include
- $(CP) ./src/include/* $(STAGING_DIR)/usr/include/
-endef
-
-define Build/UninstallDev
- rm -f $(STAGING_DIR)/usr/include/net/d80211*
- rm -f $(STAGING_DIR)/usr/include/compat_hacks.h
- rm -f $(STAGING_DIR)/usr/include/linux/ieee80211*
-endef
-
-$(eval $(call KernelPackage,d80211))
+++ /dev/null
-config D80211
- tristate "Generic IEEE 802.11 Networking Stack (dscape)"
- select CRYPTO
- select CRYPTO_ECB
- select CRYPTO_ARC4
- select CRYPTO_AES
- select WIRELESS_EXT
- ---help---
- This option enables the hardware independent IEEE 802.11
- networking stack.
-
-config D80211_LEDS
- bool "Enable LED triggers"
- depends on D80211
- select NEW_LEDS
- select LEDS_TRIGGERS
- ---help---
- This option enables a few LED triggers for different
- packet receive/transmit events.
-
-config D80211_DEBUG
- bool "Enable debugging output"
- depends on D80211
- ---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 D80211_VERBOSE_DEBUG
- bool "Verbose debugging output"
- depends on D80211_DEBUG
-
-config D80211_LOWTX_FRAME_DUMP
- bool "Debug frame dumping"
- depends on D80211_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 D80211_DEBUG
-
-config D80211_DEBUG_COUNTERS
- bool "Extra statistics for TX/RX debugging"
- depends on D80211_DEBUG
-
-config HOSTAPD_WPA_TESTING
- bool "Support for TKIP countermeasures testing"
- depends on D80211_DEBUG
-
-config D80211_IBSS_DEBUG
- bool "Support for IBSS testing"
- depends on D80211_DEBUG
- ---help---
- Say Y here if you intend to debug the IBSS code.
-
-config D80211_VERBOSE_PS_DEBUG
- bool "Verbose powersave mode debugging"
- depends on D80211_DEBUG
- ---help---
- Say Y here to print out verbose powersave
- mode debug messages.
+++ /dev/null
-obj-m += 80211.o rc80211_simple.o
-
-80211-objs := \
- ieee80211.o \
- ieee80211_ioctl.o \
- sta_info.o \
- wep.o \
- wpa.o \
- ieee80211_scan.o \
- ieee80211_sta.o \
- ieee80211_dev.o \
- ieee80211_iface.o \
- ieee80211_rate.o \
- ieee80211_sysfs.o \
- ieee80211_sysfs_sta.o \
- michael.o \
- tkip.o \
- aes_ccm.o \
- wme.o \
- fifo_qdisc.o
+++ /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/types.h>
-#include <linux/crypto.h>
-#include <linux/err.h>
-#include <asm/scatterlist.h>
-
-#include <net/d80211.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 = (data_len + AES_BLOCK_LEN - 1) / 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 = (data_len + AES_BLOCK_LEN - 1) / 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
-/*
- * 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.
- *
- * If building without CONFIG_NET_SCHED we need a simple
- * fifo qdisc to install by default as the sub-qdisc.
- * This is a simple replacement for sch_fifo.
- */
-
-#include <linux/skbuff.h>
-#include <net/pkt_sched.h>
-#include <net/d80211.h>
-#include "ieee80211_i.h"
-#include "wme.h"
-
-static int pfifo_enqueue(struct sk_buff *skb, struct Qdisc* qd)
-{
- struct sk_buff_head *q = qdisc_priv(qd);
-
- if (skb_queue_len(q) > qd->dev->tx_queue_len) {
- qd->qstats.drops++;
- kfree_skb(skb);
- return NET_XMIT_DROP;
- }
-
- skb_queue_tail(q, skb);
- qd->q.qlen++;
- qd->bstats.bytes += skb->len;
- qd->bstats.packets++;
-
- return NET_XMIT_SUCCESS;
-}
-
-
-static int pfifo_requeue(struct sk_buff *skb, struct Qdisc* qd)
-{
- struct sk_buff_head *q = qdisc_priv(qd);
-
- skb_queue_head(q, skb);
- qd->q.qlen++;
- qd->bstats.bytes += skb->len;
- qd->bstats.packets++;
-
- return NET_XMIT_SUCCESS;
-}
-
-
-static struct sk_buff *pfifo_dequeue(struct Qdisc* qd)
-{
- struct sk_buff_head *q = qdisc_priv(qd);
-
- return skb_dequeue(q);
-}
-
-
-static int pfifo_init(struct Qdisc* qd, struct rtattr *opt)
-{
- struct sk_buff_head *q = qdisc_priv(qd);
-
- skb_queue_head_init(q);
- return 0;
-}
-
-
-static void pfifo_reset(struct Qdisc* qd)
-{
- struct sk_buff_head *q = qdisc_priv(qd);
-
- skb_queue_purge(q);
- qd->q.qlen = 0;
-}
-
-
-static int pfifo_dump(struct Qdisc *qd, struct sk_buff *skb)
-{
- return skb->len;
-}
-
-
-struct Qdisc_ops pfifo_qdisc_ops =
-{
- .next = NULL,
- .cl_ops = NULL,
- .id = "ieee80211_pfifo",
- .priv_size = sizeof(struct sk_buff_head),
-
- .enqueue = pfifo_enqueue,
- .dequeue = pfifo_dequeue,
- .requeue = pfifo_requeue,
- .drop = NULL,
-
- .init = pfifo_init,
- .reset = pfifo_reset,
- .destroy = NULL,
- .change = NULL,
-
- .dump = pfifo_dump,
-};
-
+++ /dev/null
-/*
- * Host AP (software wireless LAN access point) user space daemon for
- * Host AP kernel driver
- * Copyright 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
- * 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 HOSTAPD_IOCTL_H
-#define HOSTAPD_IOCTL_H
-
-#ifdef __KERNEL__
-#include <linux/types.h>
-#endif /* __KERNEL__ */
-
-#define PRISM2_IOCTL_PRISM2_PARAM (SIOCIWFIRSTPRIV + 0)
-#define PRISM2_IOCTL_GET_PRISM2_PARAM (SIOCIWFIRSTPRIV + 1)
-#define PRISM2_IOCTL_HOSTAPD (SIOCIWFIRSTPRIV + 3)
-#define PRISM2_IOCTL_TEST_PARAM (SIOCIWFIRSTPRIV + 4)
-
-/* PRISM2_IOCTL_PRISM2_PARAM ioctl() subtypes: */
-enum {
- PRISM2_PARAM_PTYPE = 1,
- PRISM2_PARAM_TXRATECTRL = 2,
- PRISM2_PARAM_BEACON_INT = 3,
- PRISM2_PARAM_PSEUDO_IBSS = 4,
- PRISM2_PARAM_ALC = 5,
- PRISM2_PARAM_TXPOWER = 6,
- PRISM2_PARAM_DUMP = 7,
- PRISM2_PARAM_OTHER_AP_POLICY = 8,
- PRISM2_PARAM_AP_MAX_INACTIVITY = 9,
- PRISM2_PARAM_AP_BRIDGE_PACKETS = 10,
- PRISM2_PARAM_DTIM_PERIOD = 11,
- PRISM2_PARAM_AP_NULLFUNC_ACK = 12,
- PRISM2_PARAM_MAX_WDS = 13,
- PRISM2_PARAM_AP_AUTOM_AP_WDS = 14,
- PRISM2_PARAM_AP_AUTH_ALGS = 15,
- PRISM2_PARAM_MONITOR_ALLOW_FCSERR = 16,
- PRISM2_PARAM_HOST_ENCRYPT = 17,
- PRISM2_PARAM_HOST_DECRYPT = 18,
- PRISM2_PARAM_BUS_MASTER_THRESHOLD_RX = 19,
- PRISM2_PARAM_BUS_MASTER_THRESHOLD_TX = 20,
- PRISM2_PARAM_HOST_ROAMING = 21,
- PRISM2_PARAM_BCRX_STA_KEY = 22,
- PRISM2_PARAM_IEEE_802_1X = 23,
- PRISM2_PARAM_ANTSEL_TX = 24,
- PRISM2_PARAM_ANTSEL_RX = 25,
- PRISM2_PARAM_MONITOR_TYPE = 26,
- PRISM2_PARAM_WDS_TYPE = 27,
- PRISM2_PARAM_HOSTSCAN = 28,
- PRISM2_PARAM_AP_SCAN = 29,
-
- /* Instant802 additions */
- PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES = 1001,
- PRISM2_PARAM_DROP_UNENCRYPTED = 1002,
- PRISM2_PARAM_PREAMBLE = 1003,
- PRISM2_PARAM_RATE_LIMIT = 1004, /* no longer used */
- PRISM2_PARAM_RATE_LIMIT_BURST = 1005, /* no longer used */
- PRISM2_PARAM_SHORT_SLOT_TIME = 1006,
- PRISM2_PARAM_TEST_MODE = 1007,
- PRISM2_PARAM_NEXT_MODE = 1008,
- PRISM2_PARAM_CLEAR_KEYS = 1009,
- PRISM2_PARAM_RADIO_ENABLED = 1010,
- PRISM2_PARAM_ANTENNA_SEL = 1011,
- PRISM2_PARAM_CALIB_INT = 1012,
- PRISM2_PARAM_ANTENNA_MODE = 1013,
- PRISM2_PARAM_PRIVACY_INVOKED = 1014,
- PRISM2_PARAM_BROADCAST_SSID = 1015,
- PRISM2_PARAM_STAT_TIME = 1016,
- PRISM2_PARAM_STA_ANTENNA_SEL = 1017,
- PRISM2_PARAM_FORCE_UNICAST_RATE = 1018,
- PRISM2_PARAM_RATE_CTRL_NUM_UP = 1019,
- PRISM2_PARAM_RATE_CTRL_NUM_DOWN = 1020,
- PRISM2_PARAM_MAX_RATECTRL_RATE = 1021,
- PRISM2_PARAM_TX_POWER_REDUCTION = 1022,
- PRISM2_PARAM_EAPOL = 1023,
- PRISM2_PARAM_KEY_TX_RX_THRESHOLD = 1024,
- PRISM2_PARAM_KEY_INDEX = 1025,
- PRISM2_PARAM_DEFAULT_WEP_ONLY = 1026,
- PRISM2_PARAM_WIFI_WME_NOACK_TEST = 1033,
- PRISM2_PARAM_ALLOW_BROADCAST_ALWAYS = 1034,
- PRISM2_PARAM_SCAN_FLAGS = 1035,
- PRISM2_PARAM_HW_MODES = 1036,
- PRISM2_PARAM_CREATE_IBSS = 1037,
- PRISM2_PARAM_WMM_ENABLED = 1038,
- PRISM2_PARAM_MIXED_CELL = 1039,
- PRISM2_PARAM_KEY_MGMT = 1040,
- PRISM2_PARAM_RADAR_DETECT = 1043,
- PRISM2_PARAM_SPECTRUM_MGMT = 1044,
- PRISM2_PARAM_USER_SPACE_MLME = 1045,
- PRISM2_PARAM_MGMT_IF = 1046,
- /* NOTE: Please try to coordinate with other active development
- * branches before allocating new param numbers so that each new param
- * will be unique within all branches and the allocated number will not
- * need to be changed when merging new features. Existing numbers in
- * the mainline (or main devel branch) must not be changed when merging
- * in new features. */
-};
-
-/* PRISM2_IOCTL_HOSTAPD ioctl() cmd: */
-enum {
- PRISM2_HOSTAPD_FLUSH = 1,
- PRISM2_HOSTAPD_ADD_STA = 2,
- PRISM2_HOSTAPD_REMOVE_STA = 3,
- PRISM2_HOSTAPD_GET_INFO_STA = 4,
- /* REMOVED: PRISM2_HOSTAPD_RESET_TXEXC_STA = 5, */
- PRISM2_SET_ENCRYPTION = 6,
- PRISM2_GET_ENCRYPTION = 7,
- PRISM2_HOSTAPD_SET_FLAGS_STA = 8,
- PRISM2_HOSTAPD_GET_RID = 9,
- PRISM2_HOSTAPD_SET_RID = 10,
- PRISM2_HOSTAPD_SET_ASSOC_AP_ADDR = 11,
- PRISM2_HOSTAPD_MLME = 13,
-
- /* Instant802 additions */
- PRISM2_HOSTAPD_SET_BEACON = 1001,
- PRISM2_HOSTAPD_GET_HW_FEATURES = 1002,
- PRISM2_HOSTAPD_SCAN = 1003,
- PRISM2_HOSTAPD_WPA_TRIGGER = 1004,
- PRISM2_HOSTAPD_SET_RATE_SETS = 1005,
- PRISM2_HOSTAPD_ADD_IF = 1006,
- PRISM2_HOSTAPD_REMOVE_IF = 1007,
- PRISM2_HOSTAPD_GET_DOT11COUNTERSTABLE = 1008,
- PRISM2_HOSTAPD_GET_LOAD_STATS = 1009,
- PRISM2_HOSTAPD_SET_STA_VLAN = 1010,
- PRISM2_HOSTAPD_SET_GENERIC_INFO_ELEM = 1011,
- PRISM2_HOSTAPD_SET_CHANNEL_FLAG = 1012,
- PRISM2_HOSTAPD_SET_REGULATORY_DOMAIN = 1013,
- PRISM2_HOSTAPD_SET_TX_QUEUE_PARAMS = 1014,
- PRISM2_HOSTAPD_GET_TX_STATS = 1016,
- PRISM2_HOSTAPD_UPDATE_IF = 1017,
- PRISM2_HOSTAPD_SCAN_REQ = 1019,
- PRISM2_STA_GET_STATE = 1020,
- PRISM2_HOSTAPD_FLUSH_IFS = 1021,
- PRISM2_HOSTAPD_SET_RADAR_PARAMS = 1023,
- PRISM2_HOSTAPD_SET_QUIET_PARAMS = 1024,
- PRISM2_HOSTAPD_GET_TX_POWER = 1025,
- /* NOTE: Please try to coordinate with other active development
- * branches before allocating new param numbers so that each new param
- * will be unique within all branches and the allocated number will not
- * need to be changed when merging new features. Existing numbers in
- * the mainline (or main devel branch) must not be changed when merging
- * in new features. */
-};
-
- /* these definitions mirror the ieee80211_i.h
- * IEEE80211_DISABLED, ... IEEE80211_ASSOCIATED enumeration */
-enum {
- PRISM2_PARAM_STA_DISABLED,
- PRISM2_PARAM_STA_AUTHENTICATE,
- PRISM2_PARAM_STA_ASSOCIATE,
- PRISM2_PARAM_STA_ASSOCIATED,
-};
-
-#define PRISM2_HOSTAPD_MAX_BUF_SIZE 2048
-#define HOSTAP_CRYPT_ALG_NAME_LEN 16
-
-/* Use this to make sure that structure elements are correctly aligned
- * for access as other types. Most commonly, this affects the placeholder
- * types used for data at the end of a structure in this union.
- */
-#ifdef __GNUC__
-#undef ALIGNED
-#define ALIGNED __attribute__ ((aligned))
-#else
-/* Check if it has been defined elsewhere */
-#ifndef ALIGNED
-#error "Must define ALIGNED to generate aligned structure elements"
-#endif
-#endif
-
-struct prism2_hostapd_param {
- u32 cmd;
- u8 sta_addr[ETH_ALEN];
- u8 pad[2];
- union {
- struct {
- u16 aid;
- u16 capability;
- u8 supp_rates[32];
- u8 wds_flags;
-#define IEEE80211_STA_DYNAMIC_ENC BIT(0)
- u8 enc_flags;
- u16 listen_interval;
- } add_sta;
- struct {
- u32 inactive_msec;
- u32 rx_packets;
- u32 tx_packets;
- u32 rx_bytes;
- u32 tx_bytes;
- u32 current_tx_rate; /* in 100 kbps */
- u32 channel_use;
- u32 flags;
- u32 num_ps_buf_frames;
- u32 tx_retry_failed;
- u32 tx_retry_count;
- u32 last_rssi;
- u32 last_ack_rssi;
- } get_info_sta;
- struct {
- char alg[HOSTAP_CRYPT_ALG_NAME_LEN];
- u32 flags;
- u32 err;
- u8 idx;
-#define HOSTAP_SEQ_COUNTER_SIZE 8
- u8 seq_counter[HOSTAP_SEQ_COUNTER_SIZE];
- u16 key_len;
- u8 key[0] ALIGNED;
- } crypt;
- struct {
- u32 flags_and;
- u32 flags_or;
- } set_flags_sta;
- struct {
- u16 rid;
- u16 len;
- u8 data[0] ALIGNED;
- } rid;
- struct {
- u16 head_len;
- u16 tail_len;
- u8 data[0] ALIGNED; /* head_len + tail_len bytes */
- } beacon;
- struct {
- u16 num_modes;
- u16 flags;
- u8 data[0] ALIGNED; /* num_modes * feature data */
- } hw_features;
- struct {
- u8 now;
- s8 our_mode_only;
- s16 last_rx;
- u16 channel;
- s16 interval; /* seconds */
- s32 listen; /* microseconds */
- } scan;
- struct {
-#define WPA_TRIGGER_FAIL_TX_MIC BIT(0)
-#define WPA_TRIGGER_FAIL_TX_ICV BIT(1)
-#define WPA_TRIGGER_FAIL_RX_MIC BIT(2)
-#define WPA_TRIGGER_FAIL_RX_ICV BIT(3)
-#define WPA_TRIGGER_TX_REPLAY BIT(4)
-#define WPA_TRIGGER_TX_REPLAY_FRAG BIT(5)
-#define WPA_TRIGGER_TX_SKIP_SEQ BIT(6)
- u32 trigger;
- } wpa_trigger;
- struct {
- u16 mode; /* MODE_* */
- u16 num_supported_rates;
- u16 num_basic_rates;
- u8 data[0] ALIGNED; /* num_supported_rates * u16 +
- * num_basic_rates * u16 */
- } set_rate_sets;
- struct {
- u8 type; /* WDS, VLAN, etc */
- u8 name[IFNAMSIZ];
- u8 data[0] ALIGNED;
- } if_info;
- struct dot11_counters {
- u32 dot11TransmittedFragmentCount;
- u32 dot11MulticastTransmittedFrameCount;
- u32 dot11FailedCount;
- u32 dot11ReceivedFragmentCount;
- u32 dot11MulticastReceivedFrameCount;
- u32 dot11FCSErrorCount;
- u32 dot11TransmittedFrameCount;
- u32 dot11WEPUndecryptableCount;
- u32 dot11ACKFailureCount;
- u32 dot11RTSFailureCount;
- u32 dot11RTSSuccessCount;
- } dot11CountersTable;
- struct {
-#define LOAD_STATS_CLEAR BIT(1)
- u32 flags;
- u32 channel_use;
- } get_load_stats;
- struct {
- char vlan_name[IFNAMSIZ];
- int vlan_id;
- } set_sta_vlan;
- struct {
- u8 len;
- u8 data[0] ALIGNED;
- } set_generic_info_elem;
- struct {
- u16 mode; /* MODE_* */
- u16 chan;
- u32 flag;
- u8 power_level; /* regulatory limit in dBm */
- u8 antenna_max;
- } set_channel_flag;
- struct {
- u32 rd;
- } set_regulatory_domain;
- struct {
- u32 queue;
- s32 aifs;
- u32 cw_min;
- u32 cw_max;
- u32 burst_time; /* maximum burst time in 0.1 ms, i.e.,
- * 10 = 1 ms */
- } tx_queue_params;
- struct {
- u32 bss_count;
- u8 bssid_mask[ETH_ALEN];
- } set_bss;
- struct ieee80211_tx_stats {
- struct {
- unsigned int len; /* num packets in queue */
- unsigned int limit; /* queue len (soft) limit
- */
- unsigned int count; /* total num frames sent */
- } data[4];
- } get_tx_stats;
- struct {
- u8 ssid_len;
- u8 ssid[0] ALIGNED;
- } scan_req;
- struct {
- u32 state;
- } sta_get_state;
- struct {
-#define MLME_STA_DEAUTH 0
-#define MLME_STA_DISASSOC 1
- u16 cmd;
- u16 reason_code;
- } mlme;
- struct {
- u8 radar_firpwr_threshold;
- u8 radar_rssi_threshold;
- u8 pulse_height_threshold;
- u8 pulse_rssi_threshold;
- u8 pulse_inband_threshold;
- } radar;
- struct {
- unsigned int period;
- unsigned int offset;
- unsigned int duration;
- } quiet;
- struct {
- unsigned int tx_power_min;
- unsigned int tx_power_max;
- } tx_power;
- struct {
- u8 dummy[80]; /* Make sizeof() this struct large enough
- * with some compiler versions. */
- } dummy;
- } u;
-};
-
-
-#ifndef IEEE80211_TX_QUEUE_NUMS
-#define IEEE80211_TX_QUEUE_NUMS
-/* TODO: these need to be synchronized with ieee80211.h; make a shared header
- * file that can be included into low-level drivers, 80211.o, and hostapd */
-/* tx_queue_params - queue */
-enum {
- IEEE80211_TX_QUEUE_DATA0 = 0, /* used for EDCA AC_VO data */
- IEEE80211_TX_QUEUE_DATA1 = 1, /* used for EDCA AC_VI data */
- IEEE80211_TX_QUEUE_DATA2 = 2, /* used for EDCA AC_BE data */
- IEEE80211_TX_QUEUE_DATA3 = 3, /* used for EDCA AC_BK data */
- IEEE80211_TX_QUEUE_DATA4 = 4,
- IEEE80211_TX_QUEUE_AFTER_BEACON = 6,
- IEEE80211_TX_QUEUE_BEACON = 7
-};
-#endif /* IEEE80211_TX_QUEUE_NUMS */
-
-
-#define HOSTAP_CRYPT_FLAG_SET_TX_KEY BIT(0)
-#define HOSTAP_CRYPT_FLAG_PERMANENT BIT(1)
-
-#define HOSTAP_CRYPT_ERR_UNKNOWN_ALG 2
-#define HOSTAP_CRYPT_ERR_UNKNOWN_ADDR 3
-#define HOSTAP_CRYPT_ERR_CRYPT_INIT_FAILED 4
-#define HOSTAP_CRYPT_ERR_KEY_SET_FAILED 5
-#define HOSTAP_CRYPT_ERR_TX_KEY_SET_FAILED 6
-#define HOSTAP_CRYPT_ERR_CARD_CONF_FAILED 7
-
-#define HOSTAP_HW_FLAG_NULLFUNC_OK BIT(0)
-
-enum {
- IEEE80211_KEY_MGMT_NONE = 0,
- IEEE80211_KEY_MGMT_IEEE8021X = 1,
- IEEE80211_KEY_MGMT_WPA_PSK = 2,
- IEEE80211_KEY_MGMT_WPA_EAP = 3,
-};
-
-
-/* Data structures used for get_hw_features ioctl */
-struct hostapd_ioctl_hw_modes_hdr {
- int mode;
- int num_channels;
- int num_rates;
-};
-
-struct ieee80211_channel_data {
- short chan; /* channel number (IEEE 802.11) */
- short freq; /* frequency in MHz */
- int flag; /* flag for hostapd use (IEEE80211_CHAN_*) */
-};
-
-struct ieee80211_rate_data {
- int rate; /* rate in 100 kbps */
- int flags; /* IEEE80211_RATE_ flags */
-};
-
-
-/* ADD_IF, REMOVE_IF, and UPDATE_IF 'type' argument */
-enum {
- HOSTAP_IF_WDS = 1, HOSTAP_IF_VLAN = 2, HOSTAP_IF_BSS = 3,
- HOSTAP_IF_STA = 4
-};
-
-struct hostapd_if_wds {
- u8 remote_addr[ETH_ALEN];
-};
-
-struct hostapd_if_vlan {
- u8 id;
-};
-
-struct hostapd_if_bss {
- u8 bssid[ETH_ALEN];
-};
-
-struct hostapd_if_sta {
-};
-
-#endif /* HOSTAPD_IOCTL_H */
+++ /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 <net/d80211.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 <net/iw_handler.h>
-#include <linux/compiler.h>
-#include <linux/bitmap.h>
-
-#include "ieee80211_common.h"
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-#include "wep.h"
-#include "wpa.h"
-#include "tkip.h"
-#include "wme.h"
-#include "aes_ccm.h"
-#include "ieee80211_led.h"
-
-/* See IEEE 802.1H for LLC/SNAP encapsulation/decapsulation */
-/* Ethernet-II snap header (RFC1042 for most EtherTypes) */
-static unsigned char rfc1042_header[] =
-{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
-/* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
-static unsigned char bridge_tunnel_header[] =
-{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
-/* No encapsulation header if EtherType < 0x600 (=length) */
-
-static unsigned char eapol_header[] =
-{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00, 0x88, 0x8e };
-
-
-static u8 * ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len);
-
-static int ieee80211_mgmt_start_xmit(struct sk_buff *skb,
- struct net_device *dev);
-
-struct ieee80211_key_conf *
-ieee80211_key_data2conf(struct ieee80211_local *local,
- struct ieee80211_key *data)
-{
- struct ieee80211_key_conf *conf;
-
- conf = kmalloc(sizeof(*conf) + data->keylen, GFP_ATOMIC);
- if (!conf)
- return NULL;
-
- conf->hw_key_idx = data->hw_key_idx;
- conf->alg = data->alg;
- conf->keylen = data->keylen;
- conf->flags = 0;
- if (data->force_sw_encrypt)
- conf->flags |= IEEE80211_KEY_FORCE_SW_ENCRYPT;
- conf->keyidx = data->keyidx;
- if (data->default_tx_key)
- conf->flags |= IEEE80211_KEY_DEFAULT_TX_KEY;
- if (local->default_wep_only)
- conf->flags |= IEEE80211_KEY_DEFAULT_WEP_ONLY;
- memcpy(conf->key, data->key, data->keylen);
-
- return conf;
-}
-
-struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
- int idx, size_t key_len, gfp_t flags)
-{
- struct ieee80211_key *key;
- int res;
-
- key = kzalloc(sizeof(struct ieee80211_key) + key_len, flags);
- if (!key)
- return NULL;
- if (sdata)
- res = kobject_set_name(&key->kobj, "%d", idx);
- else
- res = kobject_set_name(&key->kobj, "key");
- if (res) {
- kfree(key);
- return NULL;
- }
- ieee80211_key_sysfs_set_kset(key, sdata ? &sdata->key_kset : NULL);
- kobject_init(&key->kobj);
- return key;
-}
-
-void ieee80211_key_free(struct ieee80211_key *key)
-{
- if (key)
- kobject_put(&key->kobj);
-}
-
-void ieee80211_key_release(struct kobject *kobj)
-{
- struct ieee80211_key *key;
-
- key = container_of(kobj, struct ieee80211_key, kobj);
- if (key->alg == ALG_CCMP)
- ieee80211_aes_key_free(key->u.ccmp.tfm);
- kfree(key);
-}
-
-static int rate_list_match(int *rate_list, int rate)
-{
- int i;
-
- if (!rate_list)
- return 0;
-
- for (i = 0; rate_list[i] >= 0; i++)
- if (rate_list[i] == rate)
- return 1;
-
- return 0;
-}
-
-
-void ieee80211_prepare_rates(struct ieee80211_local *local)
-{
- int i;
-
- for (i = 0; i < local->num_curr_rates; i++) {
- struct ieee80211_rate *rate = &local->curr_rates[i];
-
- rate->flags &= ~(IEEE80211_RATE_SUPPORTED |
- IEEE80211_RATE_BASIC);
-
- if (local->supp_rates[local->hw.conf.phymode]) {
- if (!rate_list_match(local->supp_rates
- [local->hw.conf.phymode],
- rate->rate))
- continue;
- }
-
- rate->flags |= IEEE80211_RATE_SUPPORTED;
-
- /* Use configured basic rate set if it is available. If not,
- * use defaults that are sane for most cases. */
- if (local->basic_rates[local->hw.conf.phymode]) {
- if (rate_list_match(local->basic_rates
- [local->hw.conf.phymode],
- rate->rate))
- rate->flags |= IEEE80211_RATE_BASIC;
- } else switch (local->hw.conf.phymode) {
- case MODE_IEEE80211A:
- if (rate->rate == 60 || rate->rate == 120 ||
- rate->rate == 240)
- rate->flags |= IEEE80211_RATE_BASIC;
- break;
- case MODE_IEEE80211B:
- if (rate->rate == 10 || rate->rate == 20)
- rate->flags |= IEEE80211_RATE_BASIC;
- break;
- case MODE_ATHEROS_TURBO:
- if (rate->rate == 120 || rate->rate == 240 ||
- rate->rate == 480)
- rate->flags |= IEEE80211_RATE_BASIC;
- break;
- case MODE_IEEE80211G:
- if (rate->rate == 10 || rate->rate == 20 ||
- rate->rate == 55 || rate->rate == 110)
- rate->flags |= IEEE80211_RATE_BASIC;
- break;
- }
-
- /* Set ERP and MANDATORY flags based on phymode */
- switch (local->hw.conf.phymode) {
- case MODE_IEEE80211A:
- if (rate->rate == 60 || rate->rate == 120 ||
- rate->rate == 240)
- rate->flags |= IEEE80211_RATE_MANDATORY;
- break;
- case MODE_IEEE80211B:
- if (rate->rate == 10)
- rate->flags |= IEEE80211_RATE_MANDATORY;
- break;
- case MODE_ATHEROS_TURBO:
- break;
- case MODE_IEEE80211G:
- if (rate->rate == 10 || rate->rate == 20 ||
- rate->rate == 55 || rate->rate == 110 ||
- rate->rate == 60 || rate->rate == 120 ||
- rate->rate == 240)
- rate->flags |= IEEE80211_RATE_MANDATORY;
- if (rate->rate != 10 && rate->rate != 20 &&
- rate->rate != 55 && rate->rate != 110)
- rate->flags |= IEEE80211_RATE_ERP;
- break;
- }
- }
-}
-
-
-static void ieee80211_key_threshold_notify(struct net_device *dev,
- struct ieee80211_key *key,
- struct sta_info *sta)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct sk_buff *skb;
- struct ieee80211_msg_key_notification *msg;
-
- /* if no one will get it anyway, don't even allocate it.
- * unlikely because this is only relevant for APs
- * where the device must be open... */
- if (unlikely(!local->apdev))
- return;
-
- skb = dev_alloc_skb(sizeof(struct ieee80211_frame_info) +
- sizeof(struct ieee80211_msg_key_notification));
- if (!skb)
- return;
-
- skb_reserve(skb, sizeof(struct ieee80211_frame_info));
- msg = (struct ieee80211_msg_key_notification *)
- skb_put(skb, sizeof(struct ieee80211_msg_key_notification));
- msg->tx_rx_count = key->tx_rx_count;
- memcpy(msg->ifname, dev->name, IFNAMSIZ);
- if (sta)
- memcpy(msg->addr, sta->addr, ETH_ALEN);
- else
- memset(msg->addr, 0xff, ETH_ALEN);
-
- key->tx_rx_count = 0;
-
- ieee80211_rx_mgmt(local, skb, NULL,
- ieee80211_msg_key_threshold_notification);
-}
-
-
-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 */
- if (fc & IEEE80211_STYPE_QOS_DATA)
- hdrlen += 2; /* QoS Control Field */
- break;
- case IEEE80211_FTYPE_CTL:
- switch (fc & IEEE80211_FCTL_STYPE) {
- case IEEE80211_STYPE_CTS:
- case IEEE80211_STYPE_ACK:
- hdrlen = 10;
- break;
- default:
- hdrlen = 16;
- break;
- }
- break;
- }
-
- return hdrlen;
-}
-EXPORT_SYMBOL(ieee80211_get_hdrlen);
-
-int ieee80211_get_hdrlen_from_skb(struct sk_buff *skb)
-{
- struct ieee80211_hdr *hdr = (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);
-
-#ifdef CONFIG_D80211_LOWTX_FRAME_DUMP
-static void ieee80211_dump_frame(const char *ifname, const char *title,
- struct sk_buff *skb)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u16 fc;
- int hdrlen;
-
- 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=" MAC_FMT, MAC_ARG(hdr->addr1));
- if (hdrlen >= 16)
- printk(" A2=" MAC_FMT, MAC_ARG(hdr->addr2));
- if (hdrlen >= 24)
- printk(" A3=" MAC_FMT, MAC_ARG(hdr->addr3));
- if (hdrlen >= 30)
- printk(" A4=" MAC_FMT, MAC_ARG(hdr->addr4));
- printk("\n");
-}
-#else /* CONFIG_D80211_LOWTX_FRAME_DUMP */
-static inline void ieee80211_dump_frame(const char *ifname, const char *title,
- struct sk_buff *skb)
-{
-}
-#endif /* CONFIG_D80211_LOWTX_FRAME_DUMP */
-
-
-static int ieee80211_is_eapol(struct sk_buff *skb)
-{
- struct ieee80211_hdr *hdr;
- u16 fc;
- int hdrlen;
-
- if (unlikely(skb->len < 10))
- return 0;
-
- hdr = (struct ieee80211_hdr *) skb->data;
- fc = le16_to_cpu(hdr->frame_control);
-
- if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
- return 0;
-
- hdrlen = ieee80211_get_hdrlen(fc);
-
- if (unlikely(skb->len >= hdrlen + sizeof(eapol_header) &&
- memcmp(skb->data + hdrlen, eapol_header,
- sizeof(eapol_header)) == 0))
- return 1;
-
- return 0;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_tx_h_rate_ctrl(struct ieee80211_txrx_data *tx)
-{
- struct rate_control_extra extra;
-
- memset(&extra, 0, sizeof(extra));
- extra.mgmt_data = tx->sdata &&
- tx->sdata->type == IEEE80211_IF_TYPE_MGMT;
- extra.ethertype = tx->ethertype;
- extra.startidx = 0;
- extra.endidx = tx->local->num_curr_rates;
-
- tx->u.tx.rate = rate_control_get_rate(tx->local, tx->dev, tx->skb,
- &extra);
- if (unlikely(extra.probe != NULL)) {
- tx->u.tx.control->flags |= IEEE80211_TXCTL_RATE_CTRL_PROBE;
- tx->u.tx.probe_last_frag = 1;
- tx->u.tx.control->alt_retry_rate = tx->u.tx.rate->val;
- tx->u.tx.rate = extra.probe;
- } else {
- tx->u.tx.control->alt_retry_rate = -1;
- }
- if (!tx->u.tx.rate)
- return TXRX_DROP;
- if (tx->local->hw.conf.phymode == MODE_IEEE80211G &&
- tx->local->cts_protect_erp_frames && tx->fragmented &&
- extra.nonerp) {
- tx->u.tx.last_frag_rate = tx->u.tx.rate;
- tx->u.tx.last_frag_rateidx = extra.rateidx;
- tx->u.tx.probe_last_frag = extra.probe ? 1 : 0;
-
- tx->u.tx.rate = extra.nonerp;
- tx->u.tx.control->rateidx = extra.nonerp_idx;
- tx->u.tx.control->flags &= ~IEEE80211_TXCTL_RATE_CTRL_PROBE;
- } else {
- tx->u.tx.last_frag_rate = tx->u.tx.rate;
- tx->u.tx.last_frag_rateidx = extra.rateidx;
- tx->u.tx.control->rateidx = extra.rateidx;
- }
- tx->u.tx.control->tx_rate = tx->u.tx.rate->val;
- if ((tx->u.tx.rate->flags & IEEE80211_RATE_PREAMBLE2) &&
- tx->local->short_preamble &&
- (!tx->sta || (tx->sta->flags & WLAN_STA_SHORT_PREAMBLE))) {
- tx->u.tx.short_preamble = 1;
- tx->u.tx.control->tx_rate = tx->u.tx.rate->val2;
- }
-
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_tx_h_select_key(struct ieee80211_txrx_data *tx)
-{
- if (tx->sta)
- tx->u.tx.control->key_idx = tx->sta->key_idx_compression;
- else
- tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID;
-
- if (unlikely(tx->u.tx.control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT))
- tx->key = NULL;
- else if (tx->sta && tx->sta->key)
- tx->key = tx->sta->key;
- else if (tx->sdata->default_key)
- tx->key = tx->sdata->default_key;
- else if (tx->sdata->drop_unencrypted &&
- !(tx->sdata->eapol && ieee80211_is_eapol(tx->skb))) {
- I802_DEBUG_INC(tx->local->tx_handlers_drop_unencrypted);
- return TXRX_DROP;
- } else
- tx->key = NULL;
-
- if (tx->key) {
- tx->key->tx_rx_count++;
- if (unlikely(tx->local->key_tx_rx_threshold &&
- tx->key->tx_rx_count >
- tx->local->key_tx_rx_threshold)) {
- ieee80211_key_threshold_notify(tx->dev, tx->key,
- tx->sta);
- }
- }
-
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_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;
- u8 *pos;
- int frag_threshold = tx->local->fragmentation_threshold;
-
- if (!tx->fragmented)
- return TXRX_CONTINUE;
-
- first = tx->skb;
-
- hdrlen = ieee80211_get_hdrlen(tx->fc);
- payload_len = first->len - hdrlen;
- per_fragm = frag_threshold - hdrlen - FCS_LEN;
- num_fragm = (payload_len + per_fragm - 1) / 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);
- 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 */
-#define IEEE80211_ENCRYPT_HEADROOM 8
-#define IEEE80211_ENCRYPT_TAILROOM 12
- frag = frags[i] =
- dev_alloc_skb(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, 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(i + 1);
- 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 TXRX_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 TXRX_DROP;
-}
-
-
-static int wep_encrypt_skb(struct ieee80211_txrx_data *tx, struct sk_buff *skb)
-{
- if (tx->key->force_sw_encrypt) {
- if (ieee80211_wep_encrypt(tx->local, skb, tx->key))
- return -1;
- } else {
- tx->u.tx.control->key_idx = tx->key->hw_key_idx;
- if (tx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) {
- if (ieee80211_wep_add_iv(tx->local, skb, tx->key) ==
- NULL)
- return -1;
- }
- }
- return 0;
-}
-
-
-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);
- }
- }
-}
-
-
-static ieee80211_txrx_result
-ieee80211_tx_h_wep_encrypt(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
- u16 fc;
-
- fc = le16_to_cpu(hdr->frame_control);
-
- if (!tx->key || tx->key->alg != ALG_WEP ||
- ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA &&
- ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
- (fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH)))
- return TXRX_CONTINUE;
-
- 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 TXRX_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 TXRX_DROP;
- }
- }
- }
-
- return TXRX_CONTINUE;
-}
-
-
-static inline int ceiling_div(int dividend, int divisor)
-{
- return ((dividend + divisor - 1) / divisor);
-}
-
-
-static 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
- * ceiling_div() operations.
- */
-
- if (local->hw.conf.phymode == MODE_IEEE80211A || erp ||
- local->hw.conf.phymode == MODE_ATHEROS_TURBO) {
- /*
- * 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
- */
- /* FIX: Atheros Turbo may have different (shorter) duration? */
- 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 * ceiling_div((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 += ceiling_div(8 * (len + 4) * 10, rate);
- }
-
- return dur;
-}
-
-
-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;
-
- erp = txrate->flags & IEEE80211_RATE_ERP;
-
- /*
- * 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;
- mrate = 10; /* use 1 Mbps if everything fails */
- for (i = 0; i < local->num_curr_rates; i++) {
- struct ieee80211_rate *r = &local->curr_rates[i];
- if (r->rate > txrate->rate)
- break;
-
- if (IEEE80211_RATE_MODULATION(txrate->flags) !=
- IEEE80211_RATE_MODULATION(r->flags))
- continue;
-
- if (r->flags & IEEE80211_RATE_BASIC)
- rate = r->rate;
- else if (r->flags & IEEE80211_RATE_MANDATORY)
- mrate = r->rate;
- }
- 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,
- local->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->rate, erp,
- local->short_preamble);
- }
-
- return dur;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
- u16 dur;
- struct ieee80211_tx_control *control = tx->u.tx.control;
-
- 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->retry_limit =
- tx->local->long_retry_limit;
- } else {
- control->retry_limit =
- tx->local->short_retry_limit;
- }
- } else {
- control->retry_limit = 1;
- }
-
- if (tx->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 = -1;
- }
-
- /* 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->local->hw.conf.phymode == MODE_IEEE80211G &&
- (tx->u.tx.rate->flags & IEEE80211_RATE_ERP) &&
- tx->u.tx.unicast &&
- tx->local->cts_protect_erp_frames &&
- !(control->flags & IEEE80211_TXCTL_USE_RTS_CTS))
- control->flags |= IEEE80211_TXCTL_USE_CTS_PROTECT;
-
- /* 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->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_rate *rate;
- int erp = tx->u.tx.rate->flags & IEEE80211_RATE_ERP;
-
- /* Do not use multiple retry rates when using RTS/CTS */
- control->alt_retry_rate = -1;
-
- /* Use min(data rate, max base rate) as CTS/RTS rate */
- rate = tx->u.tx.rate;
- while (rate > tx->local->curr_rates &&
- !(rate->flags & IEEE80211_RATE_BASIC))
- rate--;
-
- if (control->flags & IEEE80211_TXCTL_USE_RTS_CTS)
- dur += ieee80211_frame_duration(tx->local, 10,
- rate->rate, erp,
- tx->local->
- short_preamble);
- dur += ieee80211_frame_duration(tx->local, tx->skb->len,
- tx->u.tx.rate->rate, erp,
- tx->u.tx.short_preamble);
- control->rts_cts_duration = dur;
- control->rts_cts_rate = rate->val;
- }
-
- 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;
- }
- }
- }
- tx->local->scan.txrx_count++;
-
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx)
-{
-#ifdef CONFIG_D80211_VERBOSE_DEBUG
- struct sk_buff *skb = tx->skb;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-#endif /* CONFIG_D80211_VERBOSE_DEBUG */
- u32 sta_flags;
-
- if (unlikely(tx->local->sta_scanning != 0) &&
- ((tx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
- (tx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PROBE_REQ))
- return TXRX_DROP;
-
- if (tx->u.tx.ps_buffered)
- return TXRX_CONTINUE;
-
- sta_flags = tx->sta ? tx->sta->flags : 0;
-
- if (likely(tx->u.tx.unicast)) {
- if (unlikely(!(sta_flags & WLAN_STA_ASSOC) &&
- tx->sdata->type != IEEE80211_IF_TYPE_IBSS &&
- (tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) {
-#ifdef CONFIG_D80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: dropped data frame to not "
- "associated station " MAC_FMT "\n",
- tx->dev->name, MAC_ARG(hdr->addr1));
-#endif /* CONFIG_D80211_VERBOSE_DEBUG */
- I802_DEBUG_INC(tx->local->tx_handlers_drop_not_assoc);
- return TXRX_DROP;
- }
- } else {
- if (unlikely((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
- tx->local->num_sta == 0 &&
- !tx->local->allow_broadcast_always &&
- tx->sdata->type != IEEE80211_IF_TYPE_IBSS)) {
- /*
- * No associated STAs - no need to send multicast
- * frames.
- */
- return TXRX_DROP;
- }
- return TXRX_CONTINUE;
- }
-
- if (unlikely(!tx->u.tx.mgmt_interface && tx->sdata->ieee802_1x &&
- !(sta_flags & WLAN_STA_AUTHORIZED))) {
-#ifdef CONFIG_D80211_DEBUG
- struct ieee80211_hdr *hdr =
- (struct ieee80211_hdr *) tx->skb->data;
- printk(KERN_DEBUG "%s: dropped frame to " MAC_FMT
- " (unauthorized port)\n", tx->dev->name,
- MAC_ARG(hdr->addr1));
-#endif
- I802_DEBUG_INC(tx->local->tx_handlers_drop_unauth_port);
- return TXRX_DROP;
- }
-
- return TXRX_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;
-
- spin_lock_bh(&local->sub_if_lock);
- list_for_each_entry(sdata, &local->sub_if_list, list) {
- struct ieee80211_if_ap *ap;
- if (sdata->dev == local->mdev ||
- sdata->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);
- }
- spin_unlock_bh(&local->sub_if_lock);
-
- spin_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);
- }
- spin_unlock_bh(&local->sta_lock);
-
- local->total_ps_buffered = total;
- printk(KERN_DEBUG "%s: PS buffers full - purged %d frames\n",
- local->mdev->name, purged);
-}
-
-
-static inline ieee80211_txrx_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 */
- if ((tx->local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING) &&
- tx->sdata->type != IEEE80211_IF_TYPE_WDS &&
- tx->sdata->bss && atomic_read(&tx->sdata->bss->num_sta_ps) &&
- !(tx->fc & IEEE80211_FCTL_ORDER)) {
- 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 TXRX_QUEUED;
- }
-
- return TXRX_CONTINUE;
-}
-
-
-static inline ieee80211_txrx_result
-ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx)
-{
- struct sta_info *sta = tx->sta;
-
- if (unlikely(!sta ||
- ((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT &&
- (tx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP)))
- return TXRX_CONTINUE;
-
- if (unlikely((sta->flags & WLAN_STA_PS) && !sta->pspoll)) {
- struct ieee80211_tx_packet_data *pkt_data;
-#ifdef CONFIG_D80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "STA " MAC_FMT " aid %d: PS buffer (entries "
- "before %d)\n",
- MAC_ARG(sta->addr), sta->aid,
- skb_queue_len(&sta->ps_tx_buf));
-#endif /* CONFIG_D80211_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 " MAC_FMT " TX "
- "buffer full - dropping oldest frame\n",
- tx->dev->name, MAC_ARG(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 TXRX_QUEUED;
- }
-#ifdef CONFIG_D80211_VERBOSE_PS_DEBUG
- else if (unlikely(sta->flags & WLAN_STA_PS)) {
- printk(KERN_DEBUG "%s: STA " MAC_FMT " in PS mode, but pspoll "
- "set -> send frame\n", tx->dev->name,
- MAC_ARG(sta->addr));
- }
-#endif /* CONFIG_D80211_VERBOSE_PS_DEBUG */
- sta->pspoll = 0;
-
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_tx_h_ps_buf(struct ieee80211_txrx_data *tx)
-{
- if (unlikely(tx->u.tx.ps_buffered))
- return TXRX_CONTINUE;
-
- if (tx->u.tx.unicast)
- return ieee80211_tx_h_unicast_ps_buf(tx);
- else
- return ieee80211_tx_h_multicast_ps_buf(tx);
-}
-
-
-static void inline
-__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 = dev->ieee80211_ptr;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- 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->sta = sta_info_get(local, hdr->addr1);
- tx->fc = le16_to_cpu(hdr->frame_control);
- control->power_level = local->hw.conf.power_level;
- tx->u.tx.control = control;
- tx->u.tx.unicast = !is_multicast_ether_addr(hdr->addr1);
- if (is_multicast_ether_addr(hdr->addr1))
- control->flags |= IEEE80211_TXCTL_NO_ACK;
- else
- control->flags &= ~IEEE80211_TXCTL_NO_ACK;
- tx->fragmented = local->fragmentation_threshold <
- IEEE80211_MAX_FRAG_THRESHOLD && tx->u.tx.unicast &&
- skb->len + FCS_LEN > local->fragmentation_threshold &&
- (!local->ops->set_frag_threshold);
- 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;
- }
- control->antenna_sel = local->hw.conf.antenna_sel;
- if (local->sta_antenna_sel != STA_ANTENNA_SEL_AUTO && tx->sta)
- control->antenna_sel = tx->sta->antenna_sel;
- 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;
-
-}
-
-static int inline is_ieee80211_device(struct net_device *dev,
- struct net_device *master)
-{
- return (dev->ieee80211_ptr == master->ieee80211_ptr);
-}
-
-/* Device in tx->dev has a reference added; use dev_put(tx->dev) when
- * finished with it. */
-static void inline 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(pkt_data->ifindex);
- if (unlikely(dev && !is_ieee80211_device(dev, mdev))) {
- dev_put(dev);
- dev = NULL;
- }
- if (unlikely(!dev)) {
- printk(KERN_WARNING "%s: NULL ifindex in pkt_data\n",
- mdev->name);
- dev = mdev;
- dev_hold(dev);
- }
- __ieee80211_tx_prepare(tx, skb, dev, control);
-}
-
-static inline int __ieee80211_queue_stopped(struct ieee80211_local *local,
- int queue)
-{
- return test_bit(IEEE80211_LINK_STATE_XOFF, &local->state[queue]);
-}
-
-static inline int __ieee80211_queue_pending(struct ieee80211_local *local,
- int queue)
-{
- return test_bit(IEEE80211_LINK_STATE_PENDING, &local->state[queue]);
-}
-
-#define IEEE80211_TX_OK 0
-#define IEEE80211_TX_AGAIN 1
-#define IEEE80211_TX_FRAG_AGAIN 2
-
-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 (skb) {
- ieee80211_dump_frame(local->mdev->name, "TX to low-level driver", skb);
- ret = local->ops->tx(local_to_hw(local), skb, control);
- if (ret)
- return IEEE80211_TX_AGAIN;
- 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_hwrate;
- control->rateidx = tx->u.tx.last_frag_rateidx;
- if (tx->u.tx.probe_last_frag)
- control->flags |=
- IEEE80211_TXCTL_RATE_CTRL_PROBE;
- else
- control->flags &=
- ~IEEE80211_TXCTL_RATE_CTRL_PROBE;
- }
-
- ieee80211_dump_frame(local->mdev->name,
- "TX to low-level driver", skb);
- ret = local->ops->tx(local_to_hw(local),
- tx->u.tx.extra_frag[i],
- control);
- if (ret)
- return IEEE80211_TX_FRAG_AGAIN;
- 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, int mgmt)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct sta_info *sta;
- ieee80211_tx_handler *handler;
- struct ieee80211_txrx_data tx;
- ieee80211_txrx_result res = TXRX_DROP;
- int ret, i;
-
- WARN_ON(__ieee80211_queue_pending(local, control->queue));
-
- if (unlikely(skb->len < 10)) {
- dev_kfree_skb(skb);
- return 0;
- }
-
- __ieee80211_tx_prepare(&tx, skb, dev, control);
- sta = tx.sta;
- tx.u.tx.mgmt_interface = mgmt;
-
- for (handler = local->tx_handlers; *handler != NULL; handler++) {
- res = (*handler)(&tx);
- if (res != TXRX_CONTINUE)
- break;
- }
-
- skb = tx.skb; /* handlers are allowed to change skb */
-
- if (sta)
- sta_info_put(sta);
-
- if (unlikely(res == TXRX_DROP)) {
- I802_DEBUG_INC(local->tx_handlers_drop);
- goto drop;
- }
-
- if (unlikely(res == TXRX_QUEUED)) {
- I802_DEBUG_INC(local->tx_handlers_queued);
- 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;
- tx.u.tx.last_frag_hwrate = tx.u.tx.rate->val;
- }
- 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_hwrate = tx.u.tx.last_frag_hwrate;
- store->last_frag_rateidx = tx.u.tx.last_frag_rateidx;
- store->last_frag_rate_ctrl_probe = tx.u.tx.probe_last_frag;
- }
- 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);
- return 0;
-}
-
-static 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_hwrate = store->last_frag_hwrate;
- tx.u.tx.last_frag_rateidx = store->last_frag_rateidx;
- tx.u.tx.probe_last_frag = store->last_frag_rate_ctrl_probe;
- 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)
- netif_schedule(dev);
-}
-
-static 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]);
- }
-}
-
-static 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 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(pkt_data->ifindex);
- if (unlikely(odev && !is_ieee80211_device(odev, dev))) {
- dev_put(odev);
- odev = NULL;
- }
- if (unlikely(!odev)) {
-#ifdef CONFIG_D80211_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);
-
- control.ifindex = odev->ifindex;
- control.type = osdata->type;
- if (pkt_data->req_tx_status)
- control.flags |= IEEE80211_TXCTL_REQ_TX_STATUS;
- if (pkt_data->do_not_encrypt)
- control.flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
- if (pkt_data->requeue)
- control.flags |= IEEE80211_TXCTL_REQUEUE;
- control.queue = pkt_data->queue;
-
- ret = ieee80211_tx(odev, skb, &control,
- control.type == IEEE80211_IF_TYPE_MGMT);
- dev_put(odev);
-
- return ret;
-}
-
-
-/**
- * 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).
- */
-static int ieee80211_subif_start_xmit(struct sk_buff *skb,
- struct net_device *dev)
-{
- struct ieee80211_local *local = 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;
- u8 *encaps_data;
- int encaps_len, skip_header_bytes;
- int nh_pos, h_pos, no_encrypt = 0;
- struct sta_info *sta;
-
- 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->nh.raw - skb->data;
- h_pos = skb->h.raw - skb->data;
-
- /* convert Ethernet header to proper 802.11 header (based on
- * operation mode) */
- ethertype = (skb->data[12] << 8) | skb->data[13];
- /* TODO: handling for 802.1x authorized/unauthorized port */
- fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA;
-
- if (likely(sdata->type == IEEE80211_IF_TYPE_AP ||
- sdata->type == 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;
- } else if (sdata->type == 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;
- } else if (sdata->type == 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;
- } else if (sdata->type == 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;
- } else {
- ret = 0;
- goto fail;
- }
-
- /* receiver is QoS enabled, use a QoS type frame */
- sta = sta_info_get(local, hdr.addr1);
- if (sta) {
- if (sta->flags & WLAN_STA_WME) {
- fc |= IEEE80211_STYPE_QOS_DATA;
- hdrlen += 2;
- }
- sta_info_put(sta);
- }
-
- 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->hw.extra_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;
- }
- 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 = sdata->dev->ifindex;
- pkt_data->mgmt_iface = (sdata->type == IEEE80211_IF_TYPE_MGMT);
- pkt_data->do_not_encrypt = no_encrypt;
-
- skb->dev = local->mdev;
- sdata->stats.tx_packets++;
- sdata->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->mac.raw = skb->data;
- skb->nh.raw = skb->data + nh_pos;
- skb->h.raw = skb->data + h_pos;
-
- dev_queue_xmit(skb);
-
- return 0;
-
- fail:
- if (!ret)
- dev_kfree_skb(skb);
-
- return ret;
-}
-
-
-/*
- * This is the transmit routine for the 802.11 type interfaces
- * called by upper layers of the linux networking
- * stack when it has a frame to transmit
- */
-static int
-ieee80211_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_tx_packet_data *pkt_data;
- struct ieee80211_hdr *hdr;
- u16 fc;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (skb->len < 10) {
- dev_kfree_skb(skb);
- return 0;
- }
-
- hdr = (struct ieee80211_hdr *) skb->data;
- fc = le16_to_cpu(hdr->frame_control);
-
- 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;
- pkt_data->mgmt_iface = (sdata->type == IEEE80211_IF_TYPE_MGMT);
-
- skb->priority = 20; /* use hardcoded priority for mgmt TX queue */
- skb->dev = sdata->local->mdev;
-
- /*
- * We're using the protocol field of the the frame control header
- * to request TX callback for hostapd. BIT(1) is checked.
- */
- if ((fc & BIT(1)) == BIT(1)) {
- pkt_data->req_tx_status = 1;
- fc &= ~BIT(1);
- hdr->frame_control = cpu_to_le16(fc);
- }
-
- pkt_data->do_not_encrypt = !(fc & IEEE80211_FCTL_PROTECTED);
-
- sdata->stats.tx_packets++;
- sdata->stats.tx_bytes += skb->len;
-
- dev_queue_xmit(skb);
-
- return 0;
-}
-
-
-static void ieee80211_beacon_add_tim(struct ieee80211_local *local,
- struct ieee80211_if_ap *bss,
- struct sk_buff *skb)
-{
- 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. */
- spin_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 = bss->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++ = bss->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 */
- }
- spin_unlock_bh(&local->sta_lock);
-}
-
-
-struct sk_buff * ieee80211_beacon_get(struct ieee80211_hw *hw, int if_id,
- 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 ieee80211_rate *rate;
- struct rate_control_extra extra;
- u8 *b_head, *b_tail;
- int bh_len, bt_len;
-
- bdev = dev_get_by_index(if_id);
- if (bdev) {
- sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
- ap = &sdata->u.ap;
- dev_put(bdev);
- }
-
- if (!ap || sdata->type != IEEE80211_IF_TYPE_AP ||
- !ap->beacon_head) {
-#ifdef CONFIG_D80211_VERBOSE_DEBUG
- if (net_ratelimit())
- printk(KERN_DEBUG "no beacon data avail for idx=%d "
- "(%s)\n", if_id, bdev ? bdev->name : "N/A");
-#endif /* CONFIG_D80211_VERBOSE_DEBUG */
- return NULL;
- }
-
- /* Assume we are generating the normal beacon locally */
- b_head = ap->beacon_head;
- b_tail = ap->beacon_tail;
- bh_len = ap->beacon_head_len;
- bt_len = ap->beacon_tail_len;
-
- skb = dev_alloc_skb(bh_len + bt_len + 256 /* maximum TIM len */);
- if (!skb)
- return NULL;
-
- memcpy(skb_put(skb, bh_len), b_head, bh_len);
-
- ieee80211_beacon_add_tim(local, ap, skb);
-
- if (b_tail) {
- memcpy(skb_put(skb, bt_len), b_tail, bt_len);
- }
-
- if (control) {
- memset(&extra, 0, sizeof(extra));
- extra.endidx = local->num_curr_rates;
-
- rate = rate_control_get_rate(local, local->mdev, skb, &extra);
- if (!rate) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: ieee80211_beacon_get: no rate "
- "found\n", local->mdev->name);
- }
- dev_kfree_skb(skb);
- return NULL;
- }
-
- control->tx_rate = (local->short_preamble &&
- (rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
- rate->val2 : rate->val;
- control->antenna_sel = local->hw.conf.antenna_sel;
- control->power_level = local->hw.conf.power_level;
- control->flags |= IEEE80211_TXCTL_NO_ACK;
- control->retry_limit = 1;
- control->rts_cts_duration = 0;
- control->flags |= IEEE80211_TXCTL_CLEAR_DST_MASK;
- }
-
- ap->num_beacons++;
- return skb;
-}
-EXPORT_SYMBOL(ieee80211_beacon_get);
-
-struct sk_buff *
-ieee80211_get_buffered_bc(struct ieee80211_hw *hw, int if_id,
- 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_txrx_result res = TXRX_DROP;
- struct net_device *bdev;
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_if_ap *bss = NULL;
-
- bdev = dev_get_by_index(if_id);
- if (bdev) {
- sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
- bss = &sdata->u.ap;
- dev_put(bdev);
- }
- if (!bss || sdata->type != IEEE80211_IF_TYPE_AP || !bss->beacon_head)
- return NULL;
-
- if (bss->dtim_count != 0)
- return NULL; /* send buffered bc/mc only after DTIM beacon */
- skb = skb_dequeue(&bss->ps_bc_buf);
- memset(control, 0, sizeof(*control));
- 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);
- }
-
- ieee80211_tx_prepare(&tx, skb, local->mdev, control);
- sta = tx.sta;
- tx.u.tx.ps_buffered = 1;
-
- for (handler = local->tx_handlers; *handler != NULL; handler++) {
- res = (*handler)(&tx);
- if (res == TXRX_DROP || res == TXRX_QUEUED)
- break;
- }
- dev_put(tx.dev);
- skb = tx.skb; /* handlers are allowed to change skb */
-
- if (res == TXRX_DROP) {
- I802_DEBUG_INC(local->tx_handlers_drop);
- dev_kfree_skb(skb);
- skb = NULL;
- } else if (res == TXRX_QUEUED) {
- I802_DEBUG_INC(local->tx_handlers_queued);
- skb = NULL;
- }
-
- if (sta)
- sta_info_put(sta);
-
- return skb;
-}
-EXPORT_SYMBOL(ieee80211_get_buffered_bc);
-
-static int __ieee80211_if_config(struct net_device *dev,
- struct sk_buff *beacon)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_local *local = 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->type;
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->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;
- conf.generic_elem = sdata->u.sta.extra_ie;
- conf.generic_elem_len = sdata->u.sta.extra_ie_len;
- } else if (sdata->type == IEEE80211_IF_TYPE_AP) {
- conf.ssid = sdata->u.ap.ssid;
- conf.ssid_len = sdata->u.ap.ssid_len;
- conf.generic_elem = sdata->u.ap.generic_elem;
- conf.generic_elem_len = sdata->u.ap.generic_elem_len;
- conf.beacon = beacon;
- }
- return local->ops->config_interface(local_to_hw(local),
- dev->ifindex, &conf);
-}
-
-int ieee80211_if_config(struct net_device *dev)
-{
- return __ieee80211_if_config(dev, NULL);
-}
-
-int ieee80211_if_config_beacon(struct net_device *dev)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct sk_buff *skb;
-
- if (!(local->hw.flags & IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE))
- return 0;
- skb = ieee80211_beacon_get(local_to_hw(local), dev->ifindex, NULL);
- if (!skb)
- return -ENOMEM;
- return __ieee80211_if_config(dev, skb);
-}
-
-int ieee80211_hw_config(struct ieee80211_local *local)
-{
- struct ieee80211_hw_mode *mode;
- int ret = 0;
-
-#ifdef CONFIG_D80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "HW CONFIG: channel=%d freq=%d "
- "phymode=%d\n", local->hw.conf.channel, local->hw.conf.freq,
- local->hw.conf.phymode);
-#endif /* CONFIG_D80211_VERBOSE_DEBUG */
-
- if (local->ops->config)
- ret = local->ops->config(local_to_hw(local), &local->hw.conf);
-
- list_for_each_entry(mode, &local->modes_list, list) {
- if (mode->mode == local->hw.conf.phymode) {
- if (local->curr_rates != mode->rates)
- rate_control_clear(local);
- local->curr_rates = mode->rates;
- local->num_curr_rates = mode->num_rates;
- ieee80211_prepare_rates(local);
- break;
- }
- }
-
- return ret;
-}
-
-
-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_D80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: setting MTU %d\n", dev->name, new_mtu);
-#endif /* CONFIG_D80211_VERBOSE_DEBUG */
- dev->mtu = new_mtu;
- return 0;
-}
-
-
-static int ieee80211_change_mtu_apdev(struct net_device *dev, int new_mtu)
-{
- /* FIX: what would be proper limits for MTU?
- * This interface uses 802.11 frames. */
- if (new_mtu < 256 || new_mtu > IEEE80211_MAX_DATA_LEN) {
- printk(KERN_WARNING "%s: invalid MTU %d\n",
- dev->name, new_mtu);
- return -EINVAL;
- }
-
-#ifdef CONFIG_D80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: setting MTU %d\n", dev->name, new_mtu);
-#endif /* CONFIG_D80211_VERBOSE_DEBUG */
- dev->mtu = new_mtu;
- return 0;
-}
-
-
-static void ieee80211_tx_timeout(struct net_device *dev)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
-
- printk(KERN_WARNING "%s: resetting interface.\n", dev->name);
-
- if (local->ops->reset(local_to_hw(local)))
- printk(KERN_ERR "%s: failed to reset interface.\n", dev->name);
- else
- netif_wake_queue(dev);
-}
-
-
-static int ieee80211_set_mac_address(struct net_device *dev, void *addr)
-{
- struct sockaddr *a = addr;
-
- if (netif_running(dev))
- return -EBUSY;
-
- memcpy(dev->dev_addr, a->sa_data, ETH_ALEN);
- return 0;
-}
-
-static void ieee80211_set_multicast_list(struct net_device *dev)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- unsigned short flags;
-
- if (((dev->flags & IFF_ALLMULTI) != 0) ^ (sdata->allmulti != 0)) {
- if (sdata->allmulti) {
- sdata->allmulti = 0;
- local->iff_allmultis--;
- } else {
- sdata->allmulti = 1;
- local->iff_allmultis++;
- }
- }
- if (((dev->flags & IFF_PROMISC) != 0) ^ (sdata->promisc != 0)) {
- if (sdata->promisc) {
- sdata->promisc = 0;
- local->iff_promiscs--;
- } else {
- sdata->promisc = 1;
- local->iff_promiscs++;
- }
- }
- if (dev->mc_count != sdata->mc_count) {
- local->mc_count = local->mc_count - sdata->mc_count +
- dev->mc_count;
- sdata->mc_count = dev->mc_count;
- }
- if (local->ops->set_multicast_list) {
- flags = local->mdev->flags;
- if (local->iff_allmultis)
- flags |= IFF_ALLMULTI;
- if (local->iff_promiscs)
- flags |= IFF_PROMISC;
- local->ops->set_multicast_list(local_to_hw(local), flags,
- local->mc_count);
- }
-}
-
-struct dev_mc_list *ieee80211_get_mc_list_item(struct ieee80211_hw *hw,
- struct dev_mc_list *prev,
- void **ptr)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_sub_if_data *sdata = *ptr;
- struct dev_mc_list *mc;
-
- if (!prev) {
- WARN_ON(sdata);
- sdata = NULL;
- }
- if (!prev || !prev->next) {
- if (sdata)
- sdata = list_entry(sdata->list.next,
- struct ieee80211_sub_if_data, list);
- else
- sdata = list_entry(local->sub_if_list.next,
- struct ieee80211_sub_if_data, list);
- if (&sdata->list != &local->sub_if_list)
- mc = sdata->dev->mc_list;
- else
- mc = NULL;
- } else
- mc = prev->next;
-
- *ptr = sdata;
- return mc;
-}
-EXPORT_SYMBOL(ieee80211_get_mc_list_item);
-
-static struct net_device_stats *ieee80211_get_stats(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata;
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- return &(sdata->stats);
-}
-
-void ieee80211_if_shutdown(struct net_device *dev)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- ASSERT_RTNL();
- switch (sdata->type) {
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- sdata->u.sta.state = IEEE80211_DISABLED;
- cancel_delayed_work(&sdata->u.sta.work);
- if (!local->ops->hw_scan &&
- local->scan_dev == sdata->dev) {
- local->sta_scanning = 0;
- cancel_delayed_work(&local->scan_work);
- flush_scheduled_work();
- /* see comment in ieee80211_unregister_hw to
- * understand why this works */
- local->scan_dev = NULL;
- } else
- flush_scheduled_work();
- break;
- }
-}
-
-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_master_open(struct net_device *dev)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_sub_if_data *sdata;
- int res = -EOPNOTSUPP;
-
- list_for_each_entry(sdata, &local->sub_if_list, list) {
- if (sdata->dev != dev && netif_running(sdata->dev)) {
- res = 0;
- tasklet_enable(&local->tx_pending_tasklet);
- break;
- }
- }
- return res;
-}
-
-static int ieee80211_master_stop(struct net_device *dev)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_sub_if_data *sdata;
-
- tasklet_disable(&local->tx_pending_tasklet);
- list_for_each_entry(sdata, &local->sub_if_list, list) {
- if (sdata->dev != dev && netif_running(sdata->dev))
- return -EOPNOTSUPP;
- }
- return 0;
-}
-
-static int ieee80211_mgmt_open(struct net_device *dev)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
-
- if (!netif_running(local->mdev))
- return -EOPNOTSUPP;
- return 0;
-}
-
-static int ieee80211_mgmt_stop(struct net_device *dev)
-{
- return 0;
-}
-
-/* Check if running monitor interfaces should go to a "soft monitor" mode
- * and switch them if necessary. */
-static inline void ieee80211_start_soft_monitor(struct ieee80211_local *local)
-{
- struct ieee80211_if_init_conf conf;
-
- if (local->open_count && local->open_count == local->monitors &&
- !(local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER) &&
- local->ops->remove_interface) {
- conf.if_id = -1;
- conf.type = IEEE80211_IF_TYPE_MNTR;
- conf.mac_addr = NULL;
- local->ops->remove_interface(local_to_hw(local), &conf);
- }
-}
-
-/* Check if running monitor interfaces should go to a "hard monitor" mode
- * and switch them if necessary. */
-static void ieee80211_start_hard_monitor(struct ieee80211_local *local)
-{
- struct ieee80211_if_init_conf conf;
-
- if (local->open_count && local->open_count == local->monitors &&
- !(local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER) &&
- local->ops->add_interface) {
- conf.if_id = -1;
- conf.type = IEEE80211_IF_TYPE_MNTR;
- conf.mac_addr = NULL;
- local->ops->add_interface(local_to_hw(local), &conf);
- }
-}
-
-static int ieee80211_open(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata, *nsdata;
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_if_init_conf conf;
- int res;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- list_for_each_entry(nsdata, &local->sub_if_list, list) {
- struct net_device *ndev = nsdata->dev;
-
- if (ndev != dev && ndev != local->mdev &&
- netif_running(ndev) &&
- memcmp(dev->dev_addr, ndev->dev_addr, ETH_ALEN) == 0 &&
- !identical_mac_addr_allowed(sdata->type, nsdata->type)) {
- return -ENOTUNIQ;
- }
- }
- if (sdata->type == IEEE80211_IF_TYPE_WDS &&
- memcmp(sdata->u.wds.remote_addr, "\0\0\0\0\0\0", ETH_ALEN) == 0)
- return -ENOLINK;
-
- if (sdata->type == IEEE80211_IF_TYPE_MNTR && local->open_count &&
- !(local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER)) {
- /* run the interface in a "soft monitor" mode */
- local->monitors++;
- local->open_count++;
- return 0;
- }
- ieee80211_start_soft_monitor(local);
-
- if (local->ops->add_interface) {
- conf.if_id = dev->ifindex;
- conf.type = sdata->type;
- conf.mac_addr = dev->dev_addr;
- res = local->ops->add_interface(local_to_hw(local), &conf);
- if (res) {
- if (sdata->type == IEEE80211_IF_TYPE_MNTR)
- ieee80211_start_hard_monitor(local);
- return res;
- }
- } else {
- if (sdata->type != IEEE80211_IF_TYPE_STA)
- return -EOPNOTSUPP;
- if (local->open_count > 0)
- return -ENOBUFS;
- }
-
- if (local->open_count == 0) {
- res = 0;
- if (local->ops->open)
- res = local->ops->open(local_to_hw(local));
- if (res == 0) {
- res = dev_open(local->mdev);
- if (res) {
- if (local->ops->stop)
- local->ops->stop(local_to_hw(local));
- } else if (local->apdev)
- dev_open(local->apdev);
- }
- if (res) {
- if (local->ops->remove_interface)
- local->ops->remove_interface(local_to_hw(local),
- &conf);
- return res;
- }
- ieee80211_init_scan(local);
- }
- local->open_count++;
-
- if (sdata->type == IEEE80211_IF_TYPE_MNTR)
- local->monitors++;
- else
- ieee80211_if_config(dev);
-
- netif_start_queue(dev);
- return 0;
-}
-
-
-static int ieee80211_stop(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_local *local = dev->ieee80211_ptr;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (sdata->type == IEEE80211_IF_TYPE_MNTR &&
- local->open_count > 1 &&
- !(local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER)) {
- /* remove "soft monitor" interface */
- local->open_count--;
- local->monitors--;
- return 0;
- }
-
- netif_stop_queue(dev);
-
- if (sdata->type == IEEE80211_IF_TYPE_MNTR)
- local->monitors--;
-
- local->open_count--;
- if (local->open_count == 0) {
- ieee80211_stop_scan(local);
- dev_close(local->mdev);
- if (local->apdev)
- dev_close(local->apdev);
- if (local->ops->stop)
- local->ops->stop(local_to_hw(local));
- }
- if (local->ops->remove_interface) {
- struct ieee80211_if_init_conf conf;
-
- conf.if_id = dev->ifindex;
- conf.type = sdata->type;
- conf.mac_addr = dev->dev_addr;
- local->ops->remove_interface(local_to_hw(local), &conf);
- }
- ieee80211_if_shutdown(dev);
-
- ieee80211_start_hard_monitor(local);
-
- return 0;
-}
-
-
-static int header_parse_80211(struct sk_buff *skb, unsigned char *haddr)
-{
- memcpy(haddr, skb->mac.raw + 10, ETH_ALEN); /* addr2 */
- return ETH_ALEN;
-}
-
-static inline int ieee80211_bssid_match(u8 *raddr, u8 *addr)
-{
- return memcmp(raddr, addr, ETH_ALEN) == 0 ||
- is_broadcast_ether_addr(raddr);
-}
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
-{
- struct net_device *dev = rx->dev;
- struct ieee80211_local *local = rx->local;
- 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, *skb2;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- fc = rx->fc;
- if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA))
- return TXRX_CONTINUE;
-
- if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
- return TXRX_DROP;
-
- 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->type != IEEE80211_IF_TYPE_AP &&
- sdata->type != IEEE80211_IF_TYPE_VLAN)) {
- printk(KERN_DEBUG "%s: dropped ToDS frame (BSSID="
- MAC_FMT " SA=" MAC_FMT " DA=" MAC_FMT ")\n",
- dev->name, MAC_ARG(hdr->addr1),
- MAC_ARG(hdr->addr2), MAC_ARG(hdr->addr3));
- return TXRX_DROP;
- }
- 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->type != IEEE80211_IF_TYPE_WDS)) {
- printk(KERN_DEBUG "%s: dropped FromDS&ToDS frame (RA="
- MAC_FMT " TA=" MAC_FMT " DA=" MAC_FMT " SA="
- MAC_FMT ")\n",
- rx->dev->name, MAC_ARG(hdr->addr1),
- MAC_ARG(hdr->addr2), MAC_ARG(hdr->addr3),
- MAC_ARG(hdr->addr4));
- return TXRX_DROP;
- }
- break;
- case IEEE80211_FCTL_FROMDS:
- /* DA BSSID SA */
- memcpy(dst, hdr->addr1, ETH_ALEN);
- memcpy(src, hdr->addr3, ETH_ALEN);
-
- if (sdata->type != IEEE80211_IF_TYPE_STA) {
- return TXRX_DROP;
- }
- break;
- case 0:
- /* DA SA BSSID */
- memcpy(dst, hdr->addr1, ETH_ALEN);
- memcpy(src, hdr->addr2, ETH_ALEN);
-
- if (sdata->type != IEEE80211_IF_TYPE_IBSS) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: dropped IBSS frame (DA="
- MAC_FMT " SA=" MAC_FMT " BSSID=" MAC_FMT
- ")\n",
- dev->name, MAC_ARG(hdr->addr1),
- MAC_ARG(hdr->addr2),
- MAC_ARG(hdr->addr3));
- }
- return TXRX_DROP;
- }
- break;
- }
-
- payload = skb->data + hdrlen;
-
- if (unlikely(skb->len - hdrlen < 8)) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: RX too short data frame "
- "payload\n", dev->name);
- }
- return TXRX_DROP;
- }
-
- ethertype = (payload[6] << 8) | payload[7];
-
- if (likely((memcmp(payload, rfc1042_header, 6) == 0 &&
- ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
- memcmp(payload, bridge_tunnel_header, 6) == 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;
- }
- skb->dev = dev;
-
- skb2 = NULL;
-
- sdata->stats.rx_packets++;
- sdata->stats.rx_bytes += skb->len;
-
- if (local->bridge_packets && (sdata->type == IEEE80211_IF_TYPE_AP
- || sdata->type == IEEE80211_IF_TYPE_VLAN) && rx->u.rx.ra_match) {
- if (is_multicast_ether_addr(skb->data)) {
- /* send multicast frames both to higher layers in
- * local net stack and back to the wireless media */
- skb2 = skb_copy(skb, GFP_ATOMIC);
- if (!skb2)
- printk(KERN_DEBUG "%s: failed to clone "
- "multicast frame\n", dev->name);
- } else {
- struct sta_info *dsta;
- dsta = sta_info_get(local, skb->data);
- if (dsta && !dsta->dev) {
- printk(KERN_DEBUG "Station with null dev "
- "structure!\n");
- } else if (dsta && dsta->dev == dev) {
- /* Destination station is associated to this
- * AP, so send the frame directly to it and
- * do not pass the frame to local net stack.
- */
- skb2 = 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 (skb2) {
- /* send to wireless media */
- skb2->protocol = __constant_htons(ETH_P_802_3);
- skb2->mac.raw = skb2->nh.raw = skb2->data;
- dev_queue_xmit(skb2);
- }
-
- return TXRX_QUEUED;
-}
-
-
-static struct ieee80211_rate *
-ieee80211_get_rate(struct ieee80211_local *local, int phymode, int hw_rate)
-{
- struct ieee80211_hw_mode *mode;
- int r;
-
- list_for_each_entry(mode, &local->modes_list, list) {
- if (mode->mode != phymode)
- continue;
- for (r = 0; r < mode->num_rates; r++) {
- struct ieee80211_rate *rate = &mode->rates[r];
- if (rate->val == hw_rate ||
- (rate->flags & IEEE80211_RATE_PREAMBLE2 &&
- rate->val2 == hw_rate))
- return rate;
- }
- }
-
- return NULL;
-}
-
-void
-ieee80211_fill_frame_info(struct ieee80211_local *local,
- struct ieee80211_frame_info *fi,
- struct ieee80211_rx_status *status)
-{
- if (status) {
- struct timespec ts;
- struct ieee80211_rate *rate;
-
- jiffies_to_timespec(status->hosttime, &ts);
- fi->hosttime = cpu_to_be64((u64) ts.tv_sec * 1000000 +
- ts.tv_nsec / 1000);
- fi->mactime = cpu_to_be64(status->mactime);
- switch (status->phymode) {
- case MODE_IEEE80211A:
- fi->phytype = htonl(ieee80211_phytype_ofdm_dot11_a);
- break;
- case MODE_IEEE80211B:
- fi->phytype = htonl(ieee80211_phytype_dsss_dot11_b);
- break;
- case MODE_IEEE80211G:
- fi->phytype = htonl(ieee80211_phytype_pbcc_dot11_g);
- break;
- case MODE_ATHEROS_TURBO:
- fi->phytype =
- htonl(ieee80211_phytype_dsss_dot11_turbo);
- break;
- default:
- fi->phytype = 0xAAAAAAAA;
- break;
- }
- fi->channel = htonl(status->channel);
- rate = ieee80211_get_rate(local, status->phymode,
- status->rate);
- if (rate) {
- fi->datarate = htonl(rate->rate);
- if (rate->flags & IEEE80211_RATE_PREAMBLE2) {
- if (status->rate == rate->val)
- fi->preamble = htonl(2); /* long */
- else if (status->rate == rate->val2)
- fi->preamble = htonl(1); /* short */
- } else
- fi->preamble = htonl(0);
- } else {
- fi->datarate = htonl(0);
- fi->preamble = htonl(0);
- }
-
- fi->antenna = htonl(status->antenna);
- fi->priority = 0xffffffff; /* no clue */
- fi->ssi_type = htonl(ieee80211_ssi_raw);
- fi->ssi_signal = htonl(status->ssi);
- fi->ssi_noise = 0x00000000;
- fi->encoding = 0;
- } else {
- /* clear everything because we really don't know.
- * the msg_type field isn't present on monitor frames
- * so we don't know whether it will be present or not,
- * but it's ok to not clear it since it'll be assigned
- * anyway */
- memset(fi, 0, sizeof(*fi) - sizeof(fi->msg_type));
-
- fi->ssi_type = htonl(ieee80211_ssi_none);
- }
- fi->version = htonl(IEEE80211_FI_VERSION);
- fi->length = cpu_to_be32(sizeof(*fi) - sizeof(fi->msg_type));
-}
-
-/* this routine is actually not just for this, but also
- * for pushing fake 'management' frames into userspace.
- * it shall be replaced by a netlink-based system. */
-void
-ieee80211_rx_mgmt(struct ieee80211_local *local, struct sk_buff *skb,
- struct ieee80211_rx_status *status, u32 msg_type)
-{
- struct ieee80211_frame_info *fi;
- const size_t hlen = sizeof(struct ieee80211_frame_info);
- struct ieee80211_sub_if_data *sdata;
-
- skb->dev = local->apdev;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(local->apdev);
-
- if (skb_headroom(skb) < hlen) {
- I802_DEBUG_INC(local->rx_expand_skb_head);
- if (pskb_expand_head(skb, hlen, 0, GFP_ATOMIC)) {
- dev_kfree_skb(skb);
- return;
- }
- }
-
- fi = (struct ieee80211_frame_info *) skb_push(skb, hlen);
-
- ieee80211_fill_frame_info(local, fi, status);
- fi->msg_type = htonl(msg_type);
-
- sdata->stats.rx_packets++;
- sdata->stats.rx_bytes += skb->len;
-
- skb->mac.raw = skb->data;
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- skb->pkt_type = PACKET_OTHERHOST;
- skb->protocol = htons(ETH_P_802_2);
- memset(skb->cb, 0, sizeof(skb->cb));
- netif_rx(skb);
-}
-
-void
-ieee80211_rx_monitor(struct net_device *dev, struct sk_buff *skb,
- struct ieee80211_rx_status *status)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_frame_info *fi;
- struct ieee80211_sub_if_data *sdata;
- const size_t hlen = sizeof(struct ieee80211_frame_info)
- - sizeof(fi->msg_type);
-
- skb->dev = dev;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (skb_headroom(skb) < hlen) {
- I802_DEBUG_INC(local->rx_expand_skb_head);
- if (pskb_expand_head(skb, hlen, 0, GFP_ATOMIC)) {
- dev_kfree_skb(skb);
- return;
- }
- }
-
- fi = (struct ieee80211_frame_info *) skb_push(skb, hlen);
-
- ieee80211_fill_frame_info(local, fi, status);
- sdata->stats.rx_packets++;
- sdata->stats.rx_bytes += skb->len;
-
- skb->mac.raw = skb->data;
- skb->ip_summed = CHECKSUM_UNNECESSARY;
- skb->pkt_type = PACKET_OTHERHOST;
- skb->protocol = htons(ETH_P_802_2);
- memset(skb->cb, 0, sizeof(skb->cb));
- netif_rx(skb);
-}
-
-int ieee80211_radar_status(struct ieee80211_hw *hw, int channel,
- int radar, int radar_type)
-{
- struct sk_buff *skb;
- struct ieee80211_radar_info *msg;
- struct ieee80211_local *local = hw_to_local(hw);
-
- if (!local->apdev)
- return 0;
-
- skb = dev_alloc_skb(sizeof(struct ieee80211_frame_info) +
- sizeof(struct ieee80211_radar_info));
-
- if (!skb)
- return -ENOMEM;
- skb_reserve(skb, sizeof(struct ieee80211_frame_info));
-
- msg = (struct ieee80211_radar_info *)
- skb_put(skb, sizeof(struct ieee80211_radar_info));
- msg->channel = channel;
- msg->radar = radar;
- msg->radar_type = radar_type;
-
- ieee80211_rx_mgmt(local, skb, NULL, ieee80211_msg_radar);
- return 0;
-}
-EXPORT_SYMBOL(ieee80211_radar_status);
-
-int ieee80211_set_aid_for_sta(struct ieee80211_hw *hw, u8 *peer_address,
- u16 aid)
-{
- struct sk_buff *skb;
- struct ieee80211_msg_set_aid_for_sta *msg;
- struct ieee80211_local *local = hw_to_local(hw);
-
- /* unlikely because if this event only happens for APs,
- * which require an open ap device. */
- if (unlikely(!local->apdev))
- return 0;
-
- skb = dev_alloc_skb(sizeof(struct ieee80211_frame_info) +
- sizeof(struct ieee80211_msg_set_aid_for_sta));
-
- if (!skb)
- return -ENOMEM;
- skb_reserve(skb, sizeof(struct ieee80211_frame_info));
-
- msg = (struct ieee80211_msg_set_aid_for_sta *)
- skb_put(skb, sizeof(struct ieee80211_msg_set_aid_for_sta));
- memcpy(msg->sta_address, peer_address, ETH_ALEN);
- msg->aid = aid;
-
- ieee80211_rx_mgmt(local, skb, NULL, ieee80211_msg_set_aid_for_sta);
- return 0;
-}
-EXPORT_SYMBOL(ieee80211_set_aid_for_sta);
-
-static void ap_sta_ps_start(struct net_device *dev, struct sta_info *sta)
-{
- struct ieee80211_sub_if_data *sdata;
- 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_D80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "%s: STA " MAC_FMT " aid %d enters power "
- "save mode\n", dev->name, MAC_ARG(sta->addr), sta->aid);
-#endif /* CONFIG_D80211_VERBOSE_PS_DEBUG */
-}
-
-
-static int ap_sta_ps_end(struct net_device *dev, struct sta_info *sta)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct sk_buff *skb;
- int sent = 0;
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_tx_packet_data *pkt_data;
-
- 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_D80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "%s: STA " MAC_FMT " aid %d exits power "
- "save mode\n", dev->name, MAC_ARG(sta->addr), sta->aid);
-#endif /* CONFIG_D80211_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->requeue = 1;
- 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_D80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "%s: STA " MAC_FMT " aid %d send PS frame "
- "since STA not sleeping anymore\n", dev->name,
- MAC_ARG(sta->addr), sta->aid);
-#endif /* CONFIG_D80211_VERBOSE_PS_DEBUG */
- pkt_data->requeue = 1;
- dev_queue_xmit(skb);
- }
-
- return sent;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx)
-{
- struct sk_buff *skb;
- int no_pending_pkts;
-
- if (likely(!rx->sta ||
- (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_CTL ||
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PSPOLL ||
- !rx->u.rx.ra_match))
- return TXRX_CONTINUE;
-
- 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_D80211_VERBOSE_PS_DEBUG
- printk(KERN_DEBUG "STA " MAC_FMT " aid %d: PS Poll (entries "
- "after %d)\n",
- MAC_ARG(rx->sta->addr), rx->sta->aid,
- skb_queue_len(&rx->sta->ps_tx_buf));
-#endif /* CONFIG_D80211_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_D80211_VERBOSE_PS_DEBUG
- } else if (!rx->u.rx.sent_ps_buffered) {
- printk(KERN_DEBUG "%s: STA " MAC_FMT " sent PS Poll even "
- "though there is no buffered frames for it\n",
- rx->dev->name, MAC_ARG(rx->sta->addr));
-#endif /* CONFIG_D80211_VERBOSE_PS_DEBUG */
-
- }
-
- /* Free PS Poll skb here instead of returning TXRX_DROP that would
- * count as an dropped frame. */
- dev_kfree_skb(rx->skb);
-
- return TXRX_QUEUED;
-}
-
-
-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_D80211_DEBUG
- struct ieee80211_hdr *hdr =
- (struct ieee80211_hdr *) entry->skb_list.next->data;
- printk(KERN_DEBUG "%s: RX reassembly removed oldest "
- "fragment entry (idx=%d age=%lu seq=%d last_frag=%d "
- "addr1=" MAC_FMT " addr2=" MAC_FMT "\n",
- sdata->dev->name, idx,
- jiffies - entry->first_frag_time, entry->seq,
- entry->last_frag, MAC_ARG(hdr->addr1),
- MAC_ARG(hdr->addr2));
-#endif /* CONFIG_D80211_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) ||
- memcmp(hdr->addr1, f_hdr->addr1, ETH_ALEN) != 0 ||
- memcmp(hdr->addr2, f_hdr->addr2, ETH_ALEN) != 0)
- continue;
-
- if (entry->first_frag_time + 2 * HZ < jiffies) {
- __skb_queue_purge(&entry->skb_list);
- continue;
- }
- return entry;
- }
-
- return NULL;
-}
-
-
-static ieee80211_txrx_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;
-
- 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->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 TXRX_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 TXRX_DROP;
- }
-
- /* 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->alg != ALG_CCMP)
- return TXRX_DROP;
- 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) {
- printk(KERN_DEBUG "%s: defrag: CCMP PN not sequential"
- " A2=" MAC_FMT " PN=%02x%02x%02x%02x%02x%02x "
- "(expected %02x%02x%02x%02x%02x%02x)\n",
- rx->dev->name, MAC_ARG(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 TXRX_DROP;
- }
- 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 TXRX_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 TXRX_DROP;
- }
- }
- while ((skb = __skb_dequeue(&entry->skb_list)))
- memcpy(skb_put(rx->skb, skb->len), skb->data, skb->len);
-
- /* Complete frame has been reassembled - process it now */
- rx->fragmented = 1;
-
- 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 TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_monitor(struct ieee80211_txrx_data *rx)
-{
- if (rx->sdata->type == IEEE80211_IF_TYPE_MNTR) {
- ieee80211_rx_monitor(rx->dev, rx->skb, rx->u.rx.status);
- return TXRX_QUEUED;
- }
-
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_hdr *hdr;
- int always_sta_key;
- 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->u.rx.ra_match) {
- rx->local->dot11FrameDuplicateCount++;
- rx->sta->num_duplicates++;
- }
- return TXRX_DROP;
- } else
- rx->sta->last_seq_ctrl[rx->u.rx.queue] = hdr->seq_ctrl;
- }
-
- if ((rx->local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) &&
- rx->skb->len > FCS_LEN)
- skb_trim(rx->skb, rx->skb->len - FCS_LEN);
-
- if (unlikely(rx->skb->len < 16)) {
- I802_DEBUG_INC(rx->local->rx_handlers_drop_short);
- return TXRX_DROP;
- }
-
- if (!rx->u.rx.ra_match)
- rx->skb->pkt_type = PACKET_OTHERHOST;
- else if (memcmp(rx->dev->dev_addr, hdr->addr1, ETH_ALEN) == 0)
- rx->skb->pkt_type = PACKET_HOST;
- else if (is_multicast_ether_addr(hdr->addr1)) {
- if (is_broadcast_ether_addr(hdr->addr1))
- rx->skb->pkt_type = PACKET_BROADCAST;
- else
- rx->skb->pkt_type = PACKET_MULTICAST;
- } else
- rx->skb->pkt_type = PACKET_OTHERHOST;
-
- /* 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->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->u.rx.ra_match) {
- /* Drop IBSS frames and frames for other hosts
- * silently. */
- return TXRX_DROP;
- }
-
- if (!rx->local->apdev)
- return TXRX_DROP;
-
- ieee80211_rx_mgmt(rx->local, rx->skb, rx->u.rx.status,
- ieee80211_msg_sta_not_assoc);
- return TXRX_QUEUED;
- }
-
- if (rx->sdata->type == IEEE80211_IF_TYPE_STA)
- always_sta_key = 0;
- else
- always_sta_key = 1;
-
- if (rx->sta && rx->sta->key && always_sta_key) {
- rx->key = rx->sta->key;
- } else {
- if (rx->sta && rx->sta->key)
- rx->key = rx->sta->key;
- else
- rx->key = rx->sdata->default_key;
-
- if ((rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) &&
- rx->fc & IEEE80211_FCTL_PROTECTED) {
- int keyidx = ieee80211_wep_get_keyidx(rx->skb);
-
- if (keyidx >= 0 && keyidx < NUM_DEFAULT_KEYS &&
- (!rx->sta || !rx->sta->key || keyidx > 0))
- rx->key = rx->sdata->keys[keyidx];
-
- if (!rx->key) {
- if (!rx->u.rx.ra_match)
- return TXRX_DROP;
- printk(KERN_DEBUG "%s: RX WEP frame with "
- "unknown keyidx %d (A1=" MAC_FMT " A2="
- MAC_FMT " A3=" MAC_FMT ")\n",
- rx->dev->name, keyidx,
- MAC_ARG(hdr->addr1),
- MAC_ARG(hdr->addr2),
- MAC_ARG(hdr->addr3));
- if (!rx->local->apdev)
- return TXRX_DROP;
- ieee80211_rx_mgmt(
- rx->local, rx->skb, rx->u.rx.status,
- ieee80211_msg_wep_frame_unknown_key);
- return TXRX_QUEUED;
- }
- }
- }
-
- if (rx->fc & IEEE80211_FCTL_PROTECTED && rx->key && rx->u.rx.ra_match) {
- rx->key->tx_rx_count++;
- if (unlikely(rx->local->key_tx_rx_threshold &&
- rx->key->tx_rx_count >
- rx->local->key_tx_rx_threshold)) {
- ieee80211_key_threshold_notify(rx->dev, rx->key,
- rx->sta);
- }
- }
-
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_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 TXRX_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->type == IEEE80211_IF_TYPE_IBSS) {
- u8 *bssid = ieee80211_get_bssid(hdr, rx->skb->len);
- if (memcmp(bssid, rx->sdata->u.sta.bssid, ETH_ALEN) == 0)
- sta->last_rx = jiffies;
- } else
- if (!is_multicast_ether_addr(hdr->addr1) ||
- rx->sdata->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->u.rx.ra_match)
- return TXRX_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 TXRX_QUEUED;
- }
-
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_wep_weak_iv_detection(struct ieee80211_txrx_data *rx)
-{
- if (!rx->sta || !(rx->fc & IEEE80211_FCTL_PROTECTED) ||
- (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
- !rx->key || rx->key->alg != ALG_WEP || !rx->u.rx.ra_match)
- return TXRX_CONTINUE;
-
- /* Check for weak IVs, if hwaccel did not remove IV from the frame */
- if ((rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) ||
- rx->key->force_sw_encrypt) {
- u8 *iv = ieee80211_wep_is_weak_iv(rx->skb, rx->key);
- if (iv) {
- rx->sta->wep_weak_iv_count++;
- }
- }
-
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_wep_decrypt(struct ieee80211_txrx_data *rx)
-{
- /* If the device handles decryption totally, skip this test */
- if (rx->local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP)
- return TXRX_CONTINUE;
-
- if ((rx->key && rx->key->alg != ALG_WEP) ||
- !(rx->fc & IEEE80211_FCTL_PROTECTED) ||
- ((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 TXRX_CONTINUE;
-
- if (!rx->key) {
- printk(KERN_DEBUG "%s: RX WEP frame, but no key set\n",
- rx->dev->name);
- return TXRX_DROP;
- }
-
- if (!(rx->u.rx.status->flag & RX_FLAG_DECRYPTED) ||
- rx->key->force_sw_encrypt) {
- if (ieee80211_wep_decrypt(rx->local, rx->skb, rx->key)) {
- printk(KERN_DEBUG "%s: RX WEP frame, decrypt "
- "failed\n", rx->dev->name);
- return TXRX_DROP;
- }
- } else if (rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) {
- ieee80211_wep_remove_iv(rx->local, rx->skb, rx->key);
- /* remove ICV */
- skb_trim(rx->skb, rx->skb->len - 4);
- }
-
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_802_1x_pae(struct ieee80211_txrx_data *rx)
-{
- if (rx->sdata->eapol && ieee80211_is_eapol(rx->skb) &&
- rx->sdata->type != IEEE80211_IF_TYPE_STA && rx->u.rx.ra_match) {
- /* Pass both encrypted and unencrypted EAPOL frames to user
- * space for processing. */
- if (!rx->local->apdev)
- return TXRX_DROP;
- ieee80211_rx_mgmt(rx->local, rx->skb, rx->u.rx.status,
- ieee80211_msg_normal);
- return TXRX_QUEUED;
- }
-
- if (unlikely(rx->sdata->ieee802_1x &&
- (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_NULLFUNC &&
- (!rx->sta || !(rx->sta->flags & WLAN_STA_AUTHORIZED)) &&
- !ieee80211_is_eapol(rx->skb))) {
-#ifdef CONFIG_D80211_DEBUG
- struct ieee80211_hdr *hdr =
- (struct ieee80211_hdr *) rx->skb->data;
- printk(KERN_DEBUG "%s: dropped frame from " MAC_FMT
- " (unauthorized port)\n", rx->dev->name,
- MAC_ARG(hdr->addr2));
-#endif /* CONFIG_D80211_DEBUG */
- return TXRX_DROP;
- }
-
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_drop_unencrypted(struct ieee80211_txrx_data *rx)
-{
- /* If the device handles decryption totally, skip this test */
- if (rx->local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP)
- return TXRX_CONTINUE;
-
- /* 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) &&
- (rx->sdata->eapol == 0 ||
- !ieee80211_is_eapol(rx->skb)))) {
- printk(KERN_DEBUG "%s: RX non-WEP frame, but expected "
- "encryption\n", rx->dev->name);
- return TXRX_DROP;
- }
- return TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_mgmt(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_sub_if_data *sdata;
-
- if (!rx->u.rx.ra_match)
- return TXRX_DROP;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
- if ((sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) &&
- !rx->local->user_space_mlme) {
- ieee80211_sta_rx_mgmt(rx->dev, rx->skb, rx->u.rx.status);
- } else {
- /* Management frames are sent to hostapd for processing */
- if (!rx->local->apdev)
- return TXRX_DROP;
- ieee80211_rx_mgmt(rx->local, rx->skb, rx->u.rx.status,
- ieee80211_msg_normal);
- }
- return TXRX_QUEUED;
-}
-
-
-static ieee80211_txrx_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_scanning != 0)) {
- ieee80211_sta_rx_scan(rx->dev, skb, rx->u.rx.status);
- return TXRX_QUEUED;
- }
-
- if ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)
- local->scan.txrx_count++;
- if (unlikely(local->scan.in_scan != 0 &&
- rx->u.rx.status->freq == local->scan.freq)) {
- struct ieee80211_hdr *hdr;
- u16 fc;
-
- local->scan.rx_packets++;
-
- hdr = (struct ieee80211_hdr *) skb->data;
- fc = le16_to_cpu(hdr->frame_control);
-
- if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT &&
- (fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON &&
- rx->dev == local->mdev) {
- local->scan.rx_beacon++;
- /* Need to trim FCS here because it is normally
- * removed only after this passive scan handler. */
- if ((rx->local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) &&
- rx->skb->len > FCS_LEN)
- skb_trim(rx->skb, rx->skb->len - FCS_LEN);
-
- if (!rx->local->apdev)
- return TXRX_DROP;
- ieee80211_rx_mgmt(rx->local, rx->skb,
- rx->u.rx.status,
- ieee80211_msg_passive_scan);
- return TXRX_QUEUED;
- } else {
- I802_DEBUG_INC(local->rx_handlers_drop_passive_scan);
- return TXRX_DROP;
- }
- }
-
- if (unlikely(rx->u.rx.in_scan)) {
- /* scanning finished during invoking of handlers */
- I802_DEBUG_INC(local->rx_handlers_drop_passive_scan);
- return TXRX_DROP;
- }
-
- return TXRX_CONTINUE;
-}
-
-
-static u8 * ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len)
-{
- u16 fc;
-
- if (len < 24)
- return NULL;
-
- fc = le16_to_cpu(hdr->frame_control);
-
- switch (fc & IEEE80211_FCTL_FTYPE) {
- case IEEE80211_FTYPE_DATA:
- 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:
- return hdr->addr3;
- case IEEE80211_FTYPE_CTL:
- if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)
- return hdr->addr1;
- else
- return NULL;
- }
-
- return NULL;
-}
-
-static void ieee80211_rx_michael_mic_report(struct net_device *dev,
- struct ieee80211_hdr *hdr,
- struct sta_info *sta,
- struct ieee80211_txrx_data *rx)
-{
- int keyidx, hdrlen;
-
- hdrlen = ieee80211_get_hdrlen_from_skb(rx->skb);
- if (rx->skb->len >= hdrlen + 4)
- keyidx = rx->skb->data[hdrlen + 3] >> 6;
- else
- keyidx = -1;
-
- /* TODO: verify that this is not triggered by fragmented
- * frames (hw does not verify MIC for them). */
- printk(KERN_DEBUG "%s: TKIP hwaccel reported Michael MIC "
- "failure from " MAC_FMT " to " MAC_FMT " keyidx=%d\n",
- dev->name, MAC_ARG(hdr->addr2), MAC_ARG(hdr->addr1), keyidx);
-
- if (!sta) {
- /* Some hardware versions seem to generate incorrect
- * Michael MIC reports; ignore them to avoid triggering
- * countermeasures. */
- printk(KERN_DEBUG "%s: ignored spurious Michael MIC "
- "error for unknown address " MAC_FMT "\n",
- dev->name, MAC_ARG(hdr->addr2));
- goto ignore;
- }
-
- if (!(rx->fc & IEEE80211_FCTL_PROTECTED)) {
- printk(KERN_DEBUG "%s: ignored spurious Michael MIC "
- "error for a frame with no ISWEP flag (src "
- MAC_FMT ")\n", dev->name, MAC_ARG(hdr->addr2));
- goto ignore;
- }
-
- if ((rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) &&
- rx->sdata->type == IEEE80211_IF_TYPE_AP) {
- int keyidx = ieee80211_wep_get_keyidx(rx->skb);
- /* AP with Pairwise keys support 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 BSS. */
- if (keyidx) {
- printk(KERN_DEBUG "%s: ignored Michael MIC error for "
- "a frame with non-zero keyidx (%d) (src " MAC_FMT
- ")\n", dev->name, keyidx, MAC_ARG(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)) {
- printk(KERN_DEBUG "%s: ignored spurious Michael MIC "
- "error for a frame that cannot be encrypted "
- "(fc=0x%04x) (src " MAC_FMT ")\n",
- dev->name, rx->fc, MAC_ARG(hdr->addr2));
- goto ignore;
- }
-
- do {
- union iwreq_data wrqu;
- char *buf = kmalloc(128, GFP_ATOMIC);
- if (!buf)
- break;
-
- /* TODO: needed parameters: count, key type, TSC */
- sprintf(buf, "MLME-MICHAELMICFAILURE.indication("
- "keyid=%d %scast addr=" MAC_FMT ")",
- keyidx, hdr->addr1[0] & 0x01 ? "broad" : "uni",
- MAC_ARG(hdr->addr2));
- memset(&wrqu, 0, sizeof(wrqu));
- wrqu.data.length = strlen(buf);
- wireless_send_event(rx->dev, IWEVCUSTOM, &wrqu, buf);
- kfree(buf);
- } while (0);
-
- /* TODO: consider verifying the MIC error report with software
- * implementation if we get too many spurious reports from the
- * hardware. */
- if (!rx->local->apdev)
- goto ignore;
- ieee80211_rx_mgmt(rx->local, rx->skb, rx->u.rx.status,
- ieee80211_msg_michael_mic_failure);
- return;
-
- ignore:
- dev_kfree_skb(rx->skb);
- rx->skb = NULL;
-}
-
-static inline ieee80211_txrx_result __ieee80211_invoke_rx_handlers(
- struct ieee80211_local *local,
- ieee80211_rx_handler *handlers,
- struct ieee80211_txrx_data *rx,
- struct sta_info *sta)
-{
- ieee80211_rx_handler *handler;
- ieee80211_txrx_result res = TXRX_DROP;
-
- for (handler = handlers; *handler != NULL; handler++) {
- res = (*handler)(rx);
- if (res != TXRX_CONTINUE) {
- if (res == TXRX_DROP) {
- I802_DEBUG_INC(local->rx_handlers_drop);
- if (sta)
- sta->rx_dropped++;
- }
- if (res == TXRX_QUEUED)
- I802_DEBUG_INC(local->rx_handlers_queued);
- break;
- }
- }
-
- if (res == TXRX_DROP) {
- dev_kfree_skb(rx->skb);
- }
- return res;
-}
-
-static inline void ieee80211_invoke_rx_handlers(struct ieee80211_local *local,
- ieee80211_rx_handler *handlers,
- struct ieee80211_txrx_data *rx,
- struct sta_info *sta)
-{
- if (__ieee80211_invoke_rx_handlers(local, handlers, rx, sta) ==
- TXRX_CONTINUE)
- dev_kfree_skb(rx->skb);
-}
-
-/*
- * 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);
- struct ieee80211_sub_if_data *sdata;
- struct sta_info *sta;
- struct ieee80211_hdr *hdr;
- struct ieee80211_txrx_data rx;
- u16 type;
- int multicast;
-
- hdr = (struct ieee80211_hdr *) skb->data;
- memset(&rx, 0, sizeof(rx));
- rx.skb = skb;
- rx.local = local;
-
- rx.u.rx.status = status;
- rx.fc = skb->len >= 2 ? le16_to_cpu(hdr->frame_control) : 0;
- type = rx.fc & IEEE80211_FCTL_FTYPE;
- if (type == IEEE80211_FTYPE_DATA || type == IEEE80211_FTYPE_MGMT)
- local->dot11ReceivedFragmentCount++;
- multicast = is_multicast_ether_addr(hdr->addr1);
-
- if (skb->len >= 16)
- sta = rx.sta = sta_info_get(local, hdr->addr2);
- else
- sta = rx.sta = NULL;
-
- if (sta) {
- rx.dev = 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, sta, &rx);
- goto end;
- }
-
- if (unlikely(local->sta_scanning || local->scan.in_scan))
- rx.u.rx.in_scan = 1;
-
- if (__ieee80211_invoke_rx_handlers(local, local->rx_pre_handlers, &rx,
- sta) != TXRX_CONTINUE)
- goto end;
- skb = rx.skb;
-
- if (sta && !sta->assoc_ap && !(sta->flags & WLAN_STA_WDS) &&
- !local->iff_promiscs && !multicast) {
- rx.u.rx.ra_match = 1;
- ieee80211_invoke_rx_handlers(local, local->rx_handlers, &rx,
- sta);
- } else {
- struct ieee80211_sub_if_data *prev = NULL;
- struct sk_buff *skb_new;
- u8 *bssid = ieee80211_get_bssid(hdr, skb->len);
-
- list_for_each_entry(sdata, &local->sub_if_list, list) {
- rx.u.rx.ra_match = 1;
- switch (sdata->type) {
- case IEEE80211_IF_TYPE_STA:
- if (!bssid)
- continue;
- if (!ieee80211_bssid_match(bssid,
- sdata->u.sta.bssid)) {
- if (!rx.u.rx.in_scan)
- continue;
- rx.u.rx.ra_match = 0;
- } else if (!multicast &&
- memcmp(sdata->dev->dev_addr,
- hdr->addr1, ETH_ALEN) != 0) {
- if (!sdata->promisc)
- continue;
- rx.u.rx.ra_match = 0;
- }
- break;
- case IEEE80211_IF_TYPE_IBSS:
- if (!bssid)
- continue;
- if (!ieee80211_bssid_match(bssid,
- sdata->u.sta.bssid)) {
- if (!rx.u.rx.in_scan)
- continue;
- rx.u.rx.ra_match = 0;
- } else if (!multicast &&
- memcmp(sdata->dev->dev_addr,
- hdr->addr1, ETH_ALEN) != 0) {
- if (!sdata->promisc)
- continue;
- rx.u.rx.ra_match = 0;
- } else if (!sta)
- sta = rx.sta =
- ieee80211_ibss_add_sta(local->mdev,
- skb, bssid,
- hdr->addr2);
- /* FIXME: call with sdata->dev */
- break;
- case IEEE80211_IF_TYPE_AP:
- if (!bssid) {
- if (memcmp(sdata->dev->dev_addr,
- hdr->addr1, ETH_ALEN) != 0)
- continue;
- } else if (!ieee80211_bssid_match(bssid,
- sdata->dev->dev_addr)) {
- if (!rx.u.rx.in_scan)
- continue;
- rx.u.rx.ra_match = 0;
- }
- if (sdata->dev == local->mdev &&
- !rx.u.rx.in_scan)
- /* do not receive anything via
- * master device when not scanning */
- continue;
- break;
- case IEEE80211_IF_TYPE_WDS:
- if (bssid ||
- (rx.fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
- continue;
- if (memcmp(sdata->u.wds.remote_addr,
- hdr->addr2, ETH_ALEN) != 0)
- continue;
- break;
- }
-
- if (prev) {
- skb_new = skb_copy(skb, GFP_ATOMIC);
- if (!skb_new) {
- if (net_ratelimit())
- printk(KERN_DEBUG "%s: failed to copy "
- "multicast frame for %s",
- local->mdev->name, prev->dev->name);
- continue;
- }
- rx.skb = skb_new;
- rx.dev = prev->dev;
- rx.sdata = prev;
- ieee80211_invoke_rx_handlers(local,
- local->rx_handlers,
- &rx, sta);
- }
- prev = sdata;
- }
- if (prev) {
- rx.skb = skb;
- rx.dev = prev->dev;
- rx.sdata = prev;
- ieee80211_invoke_rx_handlers(local, local->rx_handlers,
- &rx, sta);
- } else
- dev_kfree_skb(skb);
- }
-
- end:
- if (sta)
- sta_info_put(sta);
-}
-EXPORT_SYMBOL(__ieee80211_rx);
-
-static ieee80211_txrx_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;
-
- /* 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 (local->hw.conf.phymode == MODE_IEEE80211A ||
- local->hw.conf.phymode == MODE_ATHEROS_TURBO ||
- local->hw.conf.phymode == MODE_ATHEROS_TURBOG ||
- (local->hw.conf.phymode == MODE_IEEE80211G &&
- tx->u.tx.rate->flags & IEEE80211_RATE_ERP))
- 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;
-
- load += skb->len * tx->u.tx.rate->rate_inv;
-
- 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->rate;
- }
- }
-
- /* 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 TXRX_CONTINUE;
-}
-
-
-static ieee80211_txrx_result
-ieee80211_rx_h_load_stats(struct ieee80211_txrx_data *rx)
-{
- struct ieee80211_local *local = rx->local;
- struct sk_buff *skb = rx->skb;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u32 load = 0, hdrtime;
- struct ieee80211_rate *rate;
- int i;
-
- /* Estimate total channel use caused by this frame */
-
- if (unlikely(local->num_curr_rates < 0))
- return TXRX_CONTINUE;
-
- rate = &local->curr_rates[0];
- for (i = 0; i < local->num_curr_rates; i++) {
- if (local->curr_rates[i].val == rx->u.rx.status->rate) {
- rate = &local->curr_rates[i];
- break;
- }
- }
-
- /* 1 bit at 1 Mbit/s takes 1 usec; in channel_use values,
- * 1 usec = 1/8 * (1080 / 10) = 13.5 */
-
- if (local->hw.conf.phymode == MODE_IEEE80211A ||
- local->hw.conf.phymode == MODE_ATHEROS_TURBO ||
- local->hw.conf.phymode == MODE_ATHEROS_TURBOG ||
- (local->hw.conf.phymode == MODE_IEEE80211G &&
- rate->flags & IEEE80211_RATE_ERP))
- hdrtime = CHAN_UTIL_HDR_SHORT;
- else
- hdrtime = CHAN_UTIL_HDR_LONG;
-
- load = hdrtime;
- if (!is_multicast_ether_addr(hdr->addr1))
- load += hdrtime;
-
- load += skb->len * rate->rate_inv;
-
- /* Divide channel_use by 8 to avoid wrapping around the counter */
- load >>= CHAN_UTIL_SHIFT;
- local->channel_use_raw += load;
- if (rx->sta)
- rx->sta->channel_use_raw += load;
- rx->u.rx.load = load;
-
- return TXRX_CONTINUE;
-}
-
-static ieee80211_txrx_result
-ieee80211_rx_h_if_stats(struct ieee80211_txrx_data *rx)
-{
- rx->sdata->channel_use_raw += rx->u.rx.load;
- return TXRX_CONTINUE;
-}
-
-static void ieee80211_stat_refresh(unsigned long data)
-{
- struct ieee80211_local *local = (struct ieee80211_local *) data;
- struct sta_info *sta;
- struct ieee80211_sub_if_data *sdata;
-
- if (!local->stat_time)
- return;
-
- /* go through all stations */
- spin_lock_bh(&local->sta_lock);
- list_for_each_entry(sta, &local->sta_list, list) {
- sta->channel_use = (sta->channel_use_raw / local->stat_time) /
- CHAN_UTIL_PER_10MS;
- sta->channel_use_raw = 0;
- }
- spin_unlock_bh(&local->sta_lock);
-
- /* go through all subinterfaces */
- list_for_each_entry(sdata, &local->sub_if_list, list) {
- sdata->channel_use = (sdata->channel_use_raw /
- local->stat_time) / CHAN_UTIL_PER_10MS;
- sdata->channel_use_raw = 0;
- }
-
- /* hardware interface */
- local->channel_use = (local->channel_use_raw /
- local->stat_time) / CHAN_UTIL_PER_10MS;
- local->channel_use_raw = 0;
-
- local->stat_timer.expires = jiffies + HZ * local->stat_time / 100;
- add_timer(&local->stat_timer);
-}
-
-
-/* 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_rx_status *saved;
- struct ieee80211_local *local = hw_to_local(hw);
-
- skb->dev = local->mdev;
- saved = kmalloc(sizeof(struct ieee80211_rx_status), GFP_ATOMIC);
- if (unlikely(!saved)) {
- if (net_ratelimit())
- printk(KERN_WARNING "%s: Not enough memory, "
- "dropping packet", 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_rx_status));
- /* copy pointer to saved status into skb->cb for use by tasklet */
- memcpy(skb->cb, &saved, sizeof(saved));
-
- skb->pkt_type = ieee80211_rx_msg;
- skb_queue_tail(&local->skb_queue, skb);
- tasklet_schedule(&local->tasklet);
-}
-EXPORT_SYMBOL(ieee80211_rx_irqsafe);
-
-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;
-
- while ((skb = skb_dequeue(&local->skb_queue)) ||
- (skb = skb_dequeue(&local->skb_queue_unreliable))) {
- switch (skb->pkt_type) {
- case ieee80211_rx_msg:
- /* get pointer to saved status out of skb->cb */
- memcpy(&rx_status, skb->cb, sizeof(rx_status));
- /* Clear skb->type in order to not confuse kernel
- * netstack. */
- skb->pkt_type = 0;
- __ieee80211_rx(local_to_hw(local), skb, rx_status);
- kfree(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;
- default: /* should never get here! */
- printk(KERN_ERR "%s: Unknown message type (%d)\n",
- local->mdev->name, 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 = control->ifindex;
- pkt_data->mgmt_iface = (control->type == IEEE80211_IF_TYPE_MGMT);
- pkt_data->req_tx_status = !!(control->flags & IEEE80211_TXCTL_REQ_TX_STATUS);
- pkt_data->do_not_encrypt = !!(control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT);
- pkt_data->requeue = !!(control->flags & IEEE80211_TXCTL_REQUEUE);
- pkt_data->queue = control->queue;
-
- hdrlen = ieee80211_get_hdrlen_from_skb(skb);
-
- if (!key)
- goto no_key;
-
- switch (key->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->force_sw_encrypt)
- 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;
- u32 msg_type;
-
- if (!status) {
- printk(KERN_ERR
- "%s: ieee80211_tx_status called with NULL status\n",
- local->mdev->name);
- 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",
- local->mdev->name,
- skb_queue_len(
- &sta->tx_filtered),
- !!(sta->flags & WLAN_STA_PS),
- jiffies);
- }
- dev_kfree_skb(skb);
- }
- sta_info_put(sta);
- return;
- }
- } else {
- /* FIXME: STUPID to call this with both local and local->mdev */
- rate_control_tx_status(local, 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++;
- }
-
- if (!(status->control.flags & IEEE80211_TXCTL_REQ_TX_STATUS)
- || unlikely(!local->apdev)) {
- dev_kfree_skb(skb);
- return;
- }
-
- msg_type = (status->flags & IEEE80211_TX_STATUS_ACK) ?
- ieee80211_msg_tx_callback_ack : ieee80211_msg_tx_callback_fail;
-
- /* skb was the original skb used for TX. Clone it and give the clone
- * to netif_rx(). Free original skb. */
- skb2 = skb_copy(skb, GFP_ATOMIC);
- if (!skb2) {
- dev_kfree_skb(skb);
- return;
- }
- dev_kfree_skb(skb);
- skb = skb2;
-
- /* Send frame to hostapd */
- ieee80211_rx_mgmt(local, skb, NULL, msg_type);
-}
-EXPORT_SYMBOL(ieee80211_tx_status);
-
-/* TODO: implement register/unregister functions for adding TX/RX handlers
- * into ordered list */
-
-/* rx_pre handlers don't have dev and sdata fields available in
- * ieee80211_txrx_data */
-static ieee80211_rx_handler ieee80211_rx_pre_handlers[] =
-{
- ieee80211_rx_h_parse_qos,
- ieee80211_rx_h_load_stats,
- NULL
-};
-
-static ieee80211_rx_handler ieee80211_rx_handlers[] =
-{
- ieee80211_rx_h_if_stats,
- ieee80211_rx_h_monitor,
- ieee80211_rx_h_passive_scan,
- ieee80211_rx_h_check,
- ieee80211_rx_h_sta_process,
- ieee80211_rx_h_ccmp_decrypt,
- ieee80211_rx_h_tkip_decrypt,
- ieee80211_rx_h_wep_weak_iv_detection,
- ieee80211_rx_h_wep_decrypt,
- 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_802_1x_pae,
- ieee80211_rx_h_drop_unencrypted,
- ieee80211_rx_h_data,
- ieee80211_rx_h_mgmt,
- NULL
-};
-
-static ieee80211_tx_handler ieee80211_tx_handlers[] =
-{
- ieee80211_tx_h_check_assoc,
- ieee80211_tx_h_ps_buf,
- ieee80211_tx_h_select_key,
- ieee80211_tx_h_michael_mic_add,
- ieee80211_tx_h_fragment,
- ieee80211_tx_h_tkip_encrypt,
- ieee80211_tx_h_ccmp_encrypt,
- ieee80211_tx_h_wep_encrypt,
- ieee80211_tx_h_rate_ctrl,
- ieee80211_tx_h_misc,
- ieee80211_tx_h_load_stats,
- NULL
-};
-
-
-int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct sta_info *sta;
-
- /* Remove STA entry for the old peer */
- sta = sta_info_get(local, sdata->u.wds.remote_addr);
- if (sta) {
- sta_info_put(sta);
- sta_info_free(sta, 0);
- } else {
- printk(KERN_DEBUG "%s: could not find STA entry for WDS link "
- "peer " MAC_FMT "\n",
- dev->name, MAC_ARG(sdata->u.wds.remote_addr));
- }
-
- /* Update WDS link data */
- memcpy(&sdata->u.wds.remote_addr, remote_addr, ETH_ALEN);
-
- return 0;
-}
-
-/* Must not be called for mdev and apdev */
-void ieee80211_if_setup(struct net_device *dev)
-{
- ether_setup(dev);
- dev->hard_start_xmit = ieee80211_subif_start_xmit;
- dev->wireless_handlers =
- (struct iw_handler_def *) &ieee80211_iw_handler_def;
- dev->do_ioctl = ieee80211_ioctl;
- dev->set_mac_address = ieee80211_set_mac_address;
- dev->set_multicast_list = ieee80211_set_multicast_list;
- dev->change_mtu = ieee80211_change_mtu;
- dev->tx_timeout = ieee80211_tx_timeout;
- dev->get_stats = ieee80211_get_stats;
- dev->open = ieee80211_open;
- dev->stop = ieee80211_stop;
- dev->tx_queue_len = 0;
- dev->uninit = ieee80211_if_reinit;
- dev->destructor = ieee80211_if_free;
-}
-
-void ieee80211_if_mgmt_setup(struct net_device *dev)
-{
- ether_setup(dev);
- dev->hard_start_xmit = ieee80211_mgmt_start_xmit;
- dev->change_mtu = ieee80211_change_mtu_apdev;
- dev->get_stats = ieee80211_get_stats;
- dev->open = ieee80211_mgmt_open;
- dev->stop = ieee80211_mgmt_stop;
- dev->type = ARPHRD_IEEE80211_PRISM;
- dev->hard_header_parse = header_parse_80211;
- dev->tx_queue_len = 0;
- dev->uninit = ieee80211_if_reinit;
- dev->destructor = ieee80211_if_free;
-}
-
-int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
- const char *name)
-{
- struct rate_control_ref *ref, *old;
- int res;
-
- ASSERT_RTNL();
- if (local->open_count || netif_running(local->mdev) ||
- (local->apdev && netif_running(local->apdev)))
- return -EBUSY;
-
- ref = rate_control_alloc(name, local);
- if (!ref) {
- printk(KERN_WARNING "%s: Failed to select rate control "
- "algorithm\n", local->mdev->name);
- return -ENOENT;
- }
- res = rate_control_add_attrs(ref, &local->class_dev.kobj);
- if (res < 0) {
- printk(KERN_DEBUG "%s: Failed to register sysfs attributes "
- "for rate control\n", local->mdev->name);
- rate_control_put(ref);
- return res;
- }
-
- old = local->rate_ctrl;
- local->rate_ctrl = ref;
- if (old) {
- rate_control_remove_attrs(ref, &local->class_dev.kobj);
- rate_control_put(old);
- sta_info_flush(local, NULL);
- }
-
- printk(KERN_DEBUG "%s: Selected rate control "
- "algorithm '%s'\n", local->mdev->name,
- ref->ops->name);
-
-
- return 0;
-}
-
-static void rate_control_deinitialize(struct ieee80211_local *local)
-{
- struct rate_control_ref *ref;
-
- ref = local->rate_ctrl;
- local->rate_ctrl = NULL;
- rate_control_remove_attrs(ref, &local->class_dev.kobj);
- rate_control_put(ref);
-}
-
-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;
-
- local = ieee80211_dev_alloc(GFP_KERNEL);
- if (!local)
- return NULL;
-
- local->ops = ops;
-
- /* Ensure 32-byte alignment of our private data and hw private data.
- * Each net_device is followed by a sub_if_data which is used for
- * interface specific information.
- *
- * Sample memory map looks something like:
- *
- * 0000 *****************
- * * net_dev *
- * 0160 *****************
- * * sub_if *
- * 0b80 *****************
- * * hw_priv *
- * 1664 *****************
- */
- priv_size = ((sizeof(struct ieee80211_sub_if_data) +
- NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST) +
- priv_data_len;
- mdev = alloc_netdev(priv_size, "wmaster%d", ether_setup);
- if (!mdev) {
- ieee80211_dev_free(local);
- return NULL;
- }
-
- mdev->ieee80211_ptr = local;
- local->hw.priv = (char *)mdev->priv +
- ((sizeof(struct ieee80211_sub_if_data) +
- NETDEV_ALIGN_CONST) & ~NETDEV_ALIGN_CONST);
- local->hw.queues = 1; /* default */
-
- local->mdev = mdev;
- local->rx_pre_handlers = ieee80211_rx_pre_handlers;
- local->rx_handlers = ieee80211_rx_handlers;
- local->tx_handlers = ieee80211_tx_handlers;
-
- 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;
- local->rate_ctrl_num_up = RATE_CONTROL_NUM_UP;
- local->rate_ctrl_num_down = RATE_CONTROL_NUM_DOWN;
-
- local->scan.in_scan = 0;
- local->enabled_modes = (unsigned int) -1;
-
- init_timer(&local->scan.timer); /* clear it out */
-
- INIT_LIST_HEAD(&local->modes_list);
-
- spin_lock_init(&local->sub_if_lock);
- INIT_LIST_HEAD(&local->sub_if_list);
-
- spin_lock_init(&local->generic_lock);
- INIT_DELAYED_WORK(&local->scan_work, ieee80211_sta_scan_work);
- init_timer(&local->stat_timer);
- local->stat_timer.function = ieee80211_stat_refresh;
- local->stat_timer.data = (unsigned long) local;
- ieee80211_rx_bss_list_init(mdev);
-
- sta_info_init(local);
-
- mdev->hard_start_xmit = ieee80211_master_start_xmit;
- mdev->wireless_handlers =
- (struct iw_handler_def *) &ieee80211_iw_master_handler_def;
- mdev->do_ioctl = ieee80211_ioctl;
- mdev->change_mtu = ieee80211_change_mtu;
- mdev->tx_timeout = ieee80211_tx_timeout;
- mdev->get_stats = ieee80211_get_stats;
- mdev->open = ieee80211_master_open;
- mdev->stop = ieee80211_master_stop;
- mdev->type = ARPHRD_IEEE80211;
- mdev->hard_header_parse = header_parse_80211;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(mdev);
- sdata->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);
- list_add_tail(&sdata->list, &local->sub_if_list);
-
- 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);
- 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);
- struct net_device *sta_dev;
- int result;
-
- result = ieee80211_dev_alloc_index(local);
- if (result < 0)
- return -1;
-
- local->class_dev.dev = local->hw.dev;
-
- result = ieee80211_dev_sysfs_add(local);
- if (result < 0)
- goto fail_sysfs;
-
- local->hw.conf.beacon_int = 1000;
-
- result = sta_info_start(local);
- if (result < 0)
- goto fail_sta_info;
-
- if (hw->flags & IEEE80211_HW_FRAGLIST)
- local->mdev->features |= NETIF_F_FRAGLIST;
- rtnl_lock();
- result = dev_alloc_name(local->mdev, local->mdev->name);
- if (result < 0) {
- rtnl_unlock();
- goto fail_dev;
- }
-
- memcpy(local->mdev->dev_addr, local->hw.perm_addr, ETH_ALEN);
- SET_NETDEV_DEV(local->mdev, local->hw.dev);
-
- result = register_netdevice(local->mdev);
- if (result < 0) {
- rtnl_unlock();
- goto fail_dev;
- }
- result = sysfs_create_link(&local->class_dev.kobj,
- &local->mdev->class_dev.kobj,
- "master");
- if (result < 0) {
- rtnl_unlock();
- goto fail_masterlink;
- }
- result = ieee80211_sysfs_add_netdevice(local->mdev);
- if (result < 0) {
- rtnl_unlock();
- goto fail_if_sysfs;
- }
-
- result = ieee80211_init_rate_ctrl_alg(local, NULL);
- rtnl_unlock();
- if (result < 0) {
- printk(KERN_DEBUG "%s: Failed to initialize rate control "
- "algorithm\n", local->mdev->name);
- goto fail_rate;
- }
-
- result = ieee80211_wep_init(local);
-
- if (result < 0) {
- printk(KERN_DEBUG "%s: Failed to initialize wep\n",
- local->mdev->name);
- goto fail_wep;
- }
-
- /* TODO: add rtnl locking around device creation and qdisc install */
- ieee80211_install_qdisc(local->mdev);
-
- /* add one default STA interface */
- rtnl_lock();
- result = ieee80211_if_add(local->mdev, "wlan%d", 1, &sta_dev);
- if (result == 0)
- ieee80211_if_set_type(sta_dev, IEEE80211_IF_TYPE_STA);
-
- local->reg_state = IEEE80211_DEV_REGISTERED;
- rtnl_unlock();
-
- ieee80211_led_init(local);
-
- return 0;
-
-fail_wep:
- rate_control_deinitialize(local);
-fail_rate:
- ieee80211_sysfs_remove_netdevice(local->mdev);
-fail_if_sysfs:
- sysfs_remove_link(&local->class_dev.kobj, "master");
-fail_masterlink:
- unregister_netdev(local->mdev);
-fail_dev:
- sta_info_stop(local);
-fail_sta_info:
- ieee80211_dev_sysfs_del(local);
-fail_sysfs:
- ieee80211_dev_free_index(local);
- return result;
-}
-EXPORT_SYMBOL(ieee80211_register_hw);
-
-int ieee80211_register_hwmode(struct ieee80211_hw *hw,
- struct ieee80211_hw_mode *mode)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_rate *rate;
- int i;
-
- INIT_LIST_HEAD(&mode->list);
- list_add_tail(&mode->list, &local->modes_list);
-
- local->hw_modes |= (1 << mode->mode);
- for (i = 0; i < mode->num_rates; i++) {
- rate = &(mode->rates[i]);
- rate->rate_inv = CHAN_UTIL_RATE_LCM / rate->rate;
- }
-
- if (!local->curr_rates) {
- /* Default to this mode */
- local->hw.conf.phymode = mode->mode;
- local->curr_rates = mode->rates;
- local->num_curr_rates = mode->num_rates;
- ieee80211_prepare_rates(local);
- local->hw.conf.freq = mode->channels[0].freq;
- local->hw.conf.channel = mode->channels[0].chan;
- local->hw.conf.channel_val = mode->channels[0].val;
- }
-
- ieee80211_init_client(local->mdev);
-
- return 0;
-}
-EXPORT_SYMBOL(ieee80211_register_hwmode);
-
-void ieee80211_unregister_hw(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct ieee80211_sub_if_data *sdata, *tmp;
- int i;
-
- tasklet_disable(&local->tasklet);
- /* TODO: skb_queue should be empty here, no need to do anything? */
-
- rtnl_lock();
- local->reg_state = IEEE80211_DEV_UNREGISTERED;
- if (local->apdev)
- ieee80211_if_del_mgmt(local);
-
- sysfs_remove_link(&local->class_dev.kobj, "master");
-
- list_for_each_entry_safe(sdata, tmp, &local->sub_if_list, list)
- __ieee80211_if_del(local, sdata);
-
- rtnl_unlock();
-
- if (local->stat_time)
- del_timer_sync(&local->stat_timer);
- if (!local->ops->hw_scan && local->scan_dev) {
- local->sta_scanning = 0;
- cancel_delayed_work(&local->scan_work);
- flush_scheduled_work();
- /* The scan_work is guaranteed not to be called at this
- * point. It is not scheduled and not running now. It can be
- * scheduled again only by sta_work (stopped by now) or under
- * rtnl lock. */
- }
-
- ieee80211_rx_bss_list_deinit(local->mdev);
- ieee80211_clear_tx_pending(local);
- sta_info_stop(local);
- rate_control_deinitialize(local);
- ieee80211_dev_sysfs_del(local);
-
- for (i = 0; i < NUM_IEEE80211_MODES; i++) {
- kfree(local->supp_rates[i]);
- kfree(local->basic_rates[i]);
- }
-
- if (skb_queue_len(&local->skb_queue)
- || skb_queue_len(&local->skb_queue_unreliable))
- printk(KERN_WARNING "%s: skb_queue not empty\n",
- local->mdev->name);
- skb_queue_purge(&local->skb_queue);
- skb_queue_purge(&local->skb_queue_unreliable);
-
- ieee80211_dev_free_index(local);
- 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);
- ieee80211_dev_free(local);
-}
-EXPORT_SYMBOL(ieee80211_free_hw);
-
-void ieee80211_release_hw(struct ieee80211_local *local)
-{
- kfree(local);
-}
-
-/* Perform netif operations on all configured interfaces */
-int ieee80211_netif_oper(struct ieee80211_hw *hw, Netif_Oper op)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- struct net_device *dev = local->mdev;
-
- switch (op) {
- case NETIF_ATTACH:
- netif_device_attach(dev);
- break;
- case NETIF_DETACH:
- netif_device_detach(dev);
- break;
- case NETIF_START:
- netif_start_queue(dev);
- break;
- case NETIF_STOP:
- break;
- case NETIF_WAKE:
- if (local->scan.in_scan == 0) {
- netif_wake_queue(dev);
-#if 1
- if (/* FIX: 802.11 qdisc in use */ 1)
- __netif_schedule(dev);
-#endif
- }
- break;
- case NETIF_IS_STOPPED:
- if (netif_queue_stopped(dev))
- return 1;
- break;
- case NETIF_UPDATE_TX_START:
- dev->trans_start = jiffies;
- break;
- }
-
- return 0;
-}
-EXPORT_SYMBOL(ieee80211_netif_oper);
-
-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
- __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);
-
- 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]);
-}
-EXPORT_SYMBOL(ieee80211_start_queues);
-
-void ieee80211_stop_queues(struct ieee80211_hw *hw)
-{
- struct ieee80211_local *local = hw_to_local(hw);
- int i;
-
- for (i = 0; i < local->hw.queues; i++)
- ieee80211_stop_queue(hw, i);
-}
-EXPORT_SYMBOL(ieee80211_stop_queues);
-
-struct net_device_stats *ieee80211_dev_stats(struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata;
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- return &sdata->stats;
-}
-
-static int __init ieee80211_init(void)
-{
- struct sk_buff *skb;
- int ret;
-
- BUILD_BUG_ON(sizeof(struct ieee80211_tx_packet_data) > sizeof(skb->cb));
-
- if ((ret = ieee80211_sysfs_init())) {
- printk(KERN_WARNING "ieee80211_init: sysfs initialization "
- "failed\n");
- return ret;
- }
-
- {
- ret = ieee80211_wme_register();
- if (ret) {
- printk(KERN_DEBUG "ieee80211_init: failed to "
- "initialize WME (err=%d)\n", ret);
- ieee80211_sysfs_deinit();
- return ret;
- }
- }
-
- return 0;
-}
-
-
-static void __exit ieee80211_exit(void)
-{
- ieee80211_wme_unregister();
- ieee80211_sysfs_deinit();
-}
-
-
-module_init(ieee80211_init);
-module_exit(ieee80211_exit);
-
-MODULE_DESCRIPTION("IEEE 802.11 subsystem");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * IEEE 802.11 driver (80211.o) -- hostapd interface
- * 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 IEEE80211_COMMON_H
-#define IEEE80211_COMMON_H
-
-#include <linux/types.h>
-
-/*
- * This is common header information with user space. It is used on all
- * frames sent to wlan#ap interface.
- */
-
-#define IEEE80211_FI_VERSION 0x80211001
-
-struct ieee80211_frame_info {
- __be32 version;
- __be32 length;
- __be64 mactime;
- __be64 hosttime;
- __be32 phytype;
- __be32 channel;
- __be32 datarate;
- __be32 antenna;
- __be32 priority;
- __be32 ssi_type;
- __be32 ssi_signal;
- __be32 ssi_noise;
- __be32 preamble;
- __be32 encoding;
-
- /* Note: this structure is otherwise identical to capture format used
- * in linux-wlan-ng, but this additional field is used to provide meta
- * data about the frame to hostapd. This was the easiest method for
- * providing this information, but this might change in the future. */
- __be32 msg_type;
-} __attribute__ ((packed));
-
-
-enum ieee80211_msg_type {
- ieee80211_msg_normal = 0,
- ieee80211_msg_tx_callback_ack = 1,
- ieee80211_msg_tx_callback_fail = 2,
- ieee80211_msg_passive_scan = 3,
- ieee80211_msg_wep_frame_unknown_key = 4,
- ieee80211_msg_michael_mic_failure = 5,
- /* hole at 6, was monitor but never sent to userspace */
- ieee80211_msg_sta_not_assoc = 7,
- ieee80211_msg_set_aid_for_sta = 8 /* used by Intersil MVC driver */,
- ieee80211_msg_key_threshold_notification = 9,
- ieee80211_msg_radar = 11,
-};
-
-struct ieee80211_msg_set_aid_for_sta {
- char sta_address[ETH_ALEN];
- u16 aid;
-};
-
-struct ieee80211_msg_key_notification {
- int tx_rx_count;
- char ifname[IFNAMSIZ];
- u8 addr[ETH_ALEN]; /* ff:ff:ff:ff:ff:ff for broadcast keys */
-};
-
-
-enum ieee80211_phytype {
- ieee80211_phytype_fhss_dot11_97 = 1,
- ieee80211_phytype_dsss_dot11_97 = 2,
- ieee80211_phytype_irbaseband = 3,
- ieee80211_phytype_dsss_dot11_b = 4,
- ieee80211_phytype_pbcc_dot11_b = 5,
- ieee80211_phytype_ofdm_dot11_g = 6,
- ieee80211_phytype_pbcc_dot11_g = 7,
- ieee80211_phytype_ofdm_dot11_a = 8,
- ieee80211_phytype_dsss_dot11_turbog = 255,
- ieee80211_phytype_dsss_dot11_turbo = 256,
-};
-
-enum ieee80211_ssi_type {
- ieee80211_ssi_none = 0,
- ieee80211_ssi_norm = 1, /* normalized, 0-1000 */
- ieee80211_ssi_dbm = 2,
- ieee80211_ssi_raw = 3, /* raw SSI */
-};
-
-struct ieee80211_radar_info {
- int channel;
- int radar;
- int radar_type;
-};
-
-#endif /* IEEE80211_COMMON_H */
+++ /dev/null
-/*
- * 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/interrupt.h>
-#include <linux/if.h>
-#include <linux/if_ether.h>
-#include <linux/netdevice.h>
-#include <net/d80211.h>
-#include "ieee80211_i.h"
-#include "ieee80211_led.h"
-
-struct ieee80211_dev_list {
- struct list_head list;
- int dev_index;
- struct ieee80211_local *local;
-};
-
-static LIST_HEAD(dev_list);
-static DEFINE_SPINLOCK(dev_list_lock);
-
-
-/* Caller must hold dev_list_lock */
-static struct ieee80211_dev_list *__ieee80211_dev_find(int index)
-{
- struct ieee80211_dev_list *dev_item;
-
- list_for_each_entry(dev_item, &dev_list, list) {
- if (dev_item->dev_index == index)
- return dev_item;
- }
- return NULL;
-}
-
-int ieee80211_dev_alloc_index(struct ieee80211_local *local)
-{
- struct ieee80211_dev_list *dev_item, *new;
- int index = 0;
-
- new = kmalloc(sizeof(struct ieee80211_dev_list), GFP_KERNEL);
- if (!new)
- return -ENOMEM;
- new->local = local;
- spin_lock(&dev_list_lock);
- list_for_each_entry(dev_item, &dev_list, list) {
- if (index < dev_item->dev_index)
- break;
- index++;
- }
- new->dev_index = index;
- list_add_tail(&new->list, &dev_item->list);
- spin_unlock(&dev_list_lock);
- local->hw.index = index;
- return index;
-}
-
-void ieee80211_dev_free_index(struct ieee80211_local *local)
-{
- struct ieee80211_dev_list *dev_item;
-
- spin_lock(&dev_list_lock);
- dev_item = __ieee80211_dev_find(local->hw.index);
- if (dev_item)
- list_del(&dev_item->list);
- spin_unlock(&dev_list_lock);
- if (dev_item)
- kfree(dev_item);
- local->hw.index = -1;
-}
-
-struct ieee80211_local *ieee80211_dev_find(int index)
-{
- struct ieee80211_dev_list *dev_item;
-
- spin_lock(&dev_list_lock);
- dev_item = __ieee80211_dev_find(index);
- spin_unlock(&dev_list_lock);
- return dev_item ? dev_item->local : NULL;
-}
-
-int ieee80211_dev_find_index(struct ieee80211_local *local)
-{
- struct ieee80211_dev_list *dev_item;
- int index = -1;
-
- spin_lock(&dev_list_lock);
- list_for_each_entry(dev_item, &dev_list, list) {
- if (dev_item->local == local) {
- index = dev_item->dev_index;
- break;
- }
- }
- spin_unlock(&dev_list_lock);
- return index;
-}
-
-struct ieee80211_local *ieee80211_dev_alloc(gfp_t flags)
-{
- struct ieee80211_local *local;
-
- local = kzalloc(sizeof(struct ieee80211_local), flags);
- if (!local)
- return NULL;
- local->hw.index = -1;
- ieee80211_dev_sysfs_init(local);
- return local;
-}
-
-void ieee80211_dev_free(struct ieee80211_local *local)
-{
- ieee80211_dev_sysfs_put(local);
-}
+++ /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.
- */
-
-#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 "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 IEEE80211_MAX_SSID_LEN 32
-
-#define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08)
-
-struct ieee80211_local;
-
-#define BIT(x) (1 << (x))
-
-#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
-
-
-/* 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 */
- int hw_mode;
- int channel;
- int freq;
- int rssi;
- u8 *wpa_ie;
- size_t wpa_ie_len;
- u8 *rsn_ie;
- size_t rsn_ie_len;
- u8 *wmm_ie;
- size_t wmm_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;
-
-};
-
-
-typedef enum {
- TXRX_CONTINUE, TXRX_DROP, TXRX_QUEUED
-} ieee80211_txrx_result;
-
-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 fragmented:1; /* whether the MSDU was fragmented */
- union {
- struct {
- struct ieee80211_tx_control *control;
- unsigned int unicast:1;
- unsigned int ps_buffered:1;
- unsigned int short_preamble:1;
- unsigned int probe_last_frag:1;
- 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;
- int last_frag_rateidx;
- int last_frag_hwrate;
- int mgmt_interface;
-
- /* 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;
- int sent_ps_buffered;
- int queue;
- int load;
- unsigned int in_scan:1;
- /* frame is destined to interface currently processed
- * (including multicast frames) */
- unsigned int ra_match:1;
- } rx;
- } u;
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- int wpa_test;
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-};
-
-/* Stored in sk_buff->cb */
-struct ieee80211_tx_packet_data {
- int ifindex;
- unsigned long jiffies;
- unsigned int req_tx_status:1;
- unsigned int do_not_encrypt:1;
- unsigned int requeue:1;
- unsigned int mgmt_iface:1;
- unsigned int queue:4;
-};
-
-struct ieee80211_tx_stored_packet {
- struct ieee80211_tx_control control;
- struct sk_buff *skb;
- int num_extra_frag;
- struct sk_buff **extra_frag;
- int last_frag_rateidx;
- int last_frag_hwrate;
- unsigned int last_frag_rate_ctrl_probe:1;
-};
-
-struct ieee80211_passive_scan {
- unsigned int in_scan:1; /* this must be cleared before calling
- * netif_oper(WAKEUP) */
- unsigned int our_mode_only:1; /* only scan our physical mode a/b/g/etc
- */
- int interval; /* time in seconds between scans */
- int time; /* time in microseconds to scan for */
- int channel; /* channel to be scanned */
- int tries;
-
- struct ieee80211_hw_mode *mode;
- int chan_idx;
-
- int freq;
- int rx_packets;
- int rx_beacon;
- int txrx_count;
-
- struct timer_list timer;
-
- struct sk_buff *skb; /* skb to transmit before changing channels,
- * maybe null for none */
- struct ieee80211_tx_control tx_control;
-
- unsigned int num_scans;
-};
-
-typedef ieee80211_txrx_result (*ieee80211_tx_handler)
-(struct ieee80211_txrx_data *tx);
-
-typedef ieee80211_txrx_result (*ieee80211_rx_handler)
-(struct ieee80211_txrx_data *rx);
-
-struct ieee80211_if_ap {
- u8 *beacon_head, *beacon_tail;
- int beacon_head_len, beacon_tail_len;
-
- u8 ssid[IEEE80211_MAX_SSID_LEN];
- size_t ssid_len;
- u8 *generic_elem;
- size_t generic_elem_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_period, 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 {
- u8 id;
-};
-
-struct ieee80211_if_sta {
- enum {
- IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
- IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
- IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
- } state;
- struct delayed_work work;
- u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
- u8 ssid[IEEE80211_MAX_SSID_LEN];
- size_t 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 ssid_set:1;
- unsigned int bssid_set:1;
- unsigned int prev_bssid_set:1;
- unsigned int authenticated:1;
- unsigned int associated:1;
- unsigned int probereq_poll:1;
- unsigned int use_protection:1;
- unsigned int create_ibss:1;
- unsigned int mixed_cell:1;
- unsigned int wmm_enabled:1;
-
- int key_mgmt;
- 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;
-
- int wmm_last_param_set;
-};
-
-
-struct ieee80211_sub_if_data {
- struct list_head list;
- unsigned int type;
-
- struct net_device *dev;
- struct ieee80211_local *local;
-
- int mc_count;
- unsigned int allmulti:1;
- unsigned int promisc:1;
-
- struct net_device_stats stats;
- int drop_unencrypted;
- int eapol; /* 0 = process EAPOL frames as normal data frames,
- * 1 = send EAPOL frames through wlan#ap to hostapd
- * (default) */
- int ieee802_1x; /* IEEE 802.1X PAE - drop packet to/from unauthorized
- * port */
-
- /* 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;
- struct kset key_kset;
-
- 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;
- } u;
- int channel_use;
- int channel_use_raw;
-
- struct attribute_group *sysfs_group;
-};
-
-#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
-
-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;
-
- /* List of registered struct ieee80211_hw_mode */
- struct list_head modes_list;
-
- struct net_device *mdev; /* wmaster# - "master" 802.11 device */
- struct net_device *apdev; /* wlan#ap - management frames (hostapd) */
- int open_count;
- int monitors;
- struct iw_statistics wstats;
-
- struct class_device class_dev;
-
- enum {
- IEEE80211_DEV_UNITIALIZED = 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;
- enum {
- ieee80211_rx_msg = 1,
- ieee80211_tx_status_msg = 2
- } ieee80211_msg_enum;
-
- spinlock_t generic_lock;
- /* Station data structures */
- struct kset sta_kset;
- spinlock_t sta_lock; /* mutex for STA data structures */
- int num_sta; /* number of stations in sta_list */
- struct list_head sta_list;
- struct list_head deleted_sta_list;
- struct sta_info *sta_hash[STA_HASH_SIZE];
- struct timer_list sta_cleanup;
-
- unsigned long state[NUM_TX_DATA_QUEUES];
- struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES];
- struct tasklet_struct tx_pending_tasklet;
-
- int mc_count; /* total count of multicast entries in all interfaces */
- int iff_allmultis, iff_promiscs;
- /* number of interfaces with corresponding IFF_ flags */
-
- /* Current rate table. This is a pointer to hw->modes structure. */
- struct ieee80211_rate *curr_rates;
- int num_curr_rates;
-
- struct rate_control_ref *rate_ctrl;
-
- int next_mode; /* MODE_IEEE80211*
- * The mode preference for next channel change. This is
- * used to select .11g vs. .11b channels (or 4.9 GHz vs.
- * .11a) when the channel number is not unique. */
-
- /* Supported and basic rate filters for different modes. These are
- * pointers to -1 terminated lists and rates in 100 kbps units. */
- int *supp_rates[NUM_IEEE80211_MODES];
- int *basic_rates[NUM_IEEE80211_MODES];
-
- int rts_threshold;
- int cts_protect_erp_frames;
- int fragmentation_threshold;
- int short_retry_limit; /* dot11ShortRetryLimit */
- int long_retry_limit; /* dot11LongRetryLimit */
- int short_preamble; /* use short preamble with IEEE 802.11b */
-
- struct crypto_blkcipher *wep_tx_tfm;
- struct crypto_blkcipher *wep_rx_tfm;
- u32 wep_iv;
- int key_tx_rx_threshold; /* number of times any key can be used in TX
- * or RX before generating a rekey
- * notification; 0 = notification disabled. */
-
- int bridge_packets; /* bridge packets between associated stations and
- * deliver multicast frames both back to wireless
- * media and to the local net stack */
-
- struct ieee80211_passive_scan scan;
-
-
- ieee80211_rx_handler *rx_pre_handlers;
- ieee80211_rx_handler *rx_handlers;
- ieee80211_tx_handler *tx_handlers;
-
- spinlock_t sub_if_lock; /* mutex for STA data structures */
- struct list_head sub_if_list;
- int sta_scanning;
- struct ieee80211_hw_mode *scan_hw_mode;
- int scan_channel_idx;
- enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
- unsigned long last_scan_completed;
- struct delayed_work scan_work;
- struct net_device *scan_dev;
- int scan_oper_channel;
- int scan_oper_channel_val;
- int scan_oper_power_level;
- int scan_oper_freq;
- int scan_oper_phymode;
- int scan_oper_antenna_max;
- 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;
-#define IEEE80211_SCAN_MATCH_SSID BIT(0)
-#define IEEE80211_SCAN_WPA_ONLY BIT(1)
-#define IEEE80211_SCAN_EXTRA_INFO BIT(2)
- int scan_flags;
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- u32 wpa_trigger;
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
- /* 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_D80211_LEDS
- int tx_led_counter, rx_led_counter;
- struct led_trigger *tx_led, *rx_led;
- char tx_led_name[32], rx_led_name[32];
-#endif
-
- u32 channel_use;
- u32 channel_use_raw;
- u32 stat_time;
- struct timer_list stat_timer;
-
- struct proc_dir_entry *proc, *proc_sta, *proc_iface;
-
- struct work_struct sta_proc_add;
-
- enum {
- STA_ANTENNA_SEL_AUTO = 0,
- STA_ANTENNA_SEL_SW_CTRL = 1,
- STA_ANTENNA_SEL_SW_CTRL_DEBUG = 2
- } sta_antenna_sel;
-
- int rate_ctrl_num_up, rate_ctrl_num_down;
-
-#ifdef CONFIG_D80211_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_D80211_DEBUG_COUNTERS */
-#define I802_DEBUG_INC(c) do { } while (0)
-#endif /* CONFIG_D80211_DEBUG_COUNTERS */
-
-
- int default_wep_only; /* only default WEP keys are used with this
- * interface; this is used to decide when hwaccel
- * can be used with default keys */
- int total_ps_buffered; /* total number of all buffered unicast and
- * multicast packets for power saving stations
- */
- int allow_broadcast_always; /* whether to allow TX of broadcast frames
- * even when there are no associated STAs
- */
-
- int wifi_wme_noack_test;
- unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
-
- unsigned int enabled_modes; /* bitfield of allowed modes;
- * (1 << MODE_*) */
- unsigned int hw_modes; /* bitfield of supported hardware modes;
- * (1 << MODE_*) */
-
- int user_space_mlme;
-};
-
-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, int aid)
-{
- /*
- * This format has ben 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, int aid)
-{
- spin_lock_bh(&local->sta_lock);
- __bss_tim_set(bss, aid);
- spin_unlock_bh(&local->sta_lock);
-}
-
-static inline void __bss_tim_clear(struct ieee80211_if_ap *bss, int aid)
-{
- /*
- * This format has ben 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, int aid)
-{
- spin_lock_bh(&local->sta_lock);
- __bss_tim_clear(bss, aid);
- spin_unlock_bh(&local->sta_lock);
-}
-
-/* ieee80211.c */
-void ieee80211_release_hw(struct ieee80211_local *local);
-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);
-struct ieee80211_key_conf *
-ieee80211_key_data2conf(struct ieee80211_local *local,
- struct ieee80211_key *data);
-struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
- int idx, size_t key_len, gfp_t flags);
-void ieee80211_key_free(struct ieee80211_key *key);
-void ieee80211_key_release(struct kobject *kobj);
-void ieee80211_rx_mgmt(struct ieee80211_local *local, struct sk_buff *skb,
- struct ieee80211_rx_status *status, u32 msg_type);
-void ieee80211_prepare_rates(struct ieee80211_local *local);
-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);
-void ieee80211_if_mgmt_setup(struct net_device *dev);
-void ieee80211_if_shutdown(struct net_device *dev);
-int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
- const char *name);
-struct net_device_stats *ieee80211_dev_stats(struct net_device *dev);
-
-/* ieee80211_ioctl.c */
-int ieee80211_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
-extern const struct iw_handler_def ieee80211_iw_handler_def;
-extern const struct iw_handler_def ieee80211_iw_master_handler_def;
-
-/* Set hw encryption from ieee80211 */
-int ieee80211_set_hw_encryption(struct net_device *dev,
- struct sta_info *sta, u8 addr[ETH_ALEN],
- struct ieee80211_key *key);
-void ieee80211_update_default_wep_only(struct ieee80211_local *local);
-
-/* ieee80211_scan.c */
-void ieee80211_init_scan(struct ieee80211_local *local);
-void ieee80211_stop_scan(struct ieee80211_local *local);
-
-
-
-/* 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_init_client(struct net_device *dev);
-/* ieee80211_sta.c */
-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);
-int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
-void 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);
-
-/* ieee80211_dev.c */
-int ieee80211_dev_alloc_index(struct ieee80211_local *local);
-void ieee80211_dev_free_index(struct ieee80211_local *local);
-struct ieee80211_local *ieee80211_dev_find(int index);
-int ieee80211_dev_find_index(struct ieee80211_local *local);
-struct ieee80211_local *ieee80211_dev_alloc(gfp_t flags);
-void ieee80211_dev_free(struct ieee80211_local *local);
-
-/* ieee80211_iface.c */
-int ieee80211_if_add(struct net_device *dev, const char *name,
- int format, struct net_device **new_dev);
-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);
-void ieee80211_if_del(struct net_device *dev);
-int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
-void ieee80211_if_free(struct net_device *dev);
-void ieee80211_if_flush(struct net_device *dev);
-void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
-int ieee80211_if_add_mgmt(struct ieee80211_local *local);
-void ieee80211_if_del_mgmt(struct ieee80211_local *local);
-
-/* ieee80211_sysfs.c */
-int ieee80211_sysfs_add_netdevice(struct net_device *dev);
-void ieee80211_sysfs_remove_netdevice(struct net_device *dev);
-void ieee80211_dev_sysfs_init(struct ieee80211_local *local);
-void ieee80211_dev_sysfs_put(struct ieee80211_local *local);
-int ieee80211_dev_sysfs_add(struct ieee80211_local *local);
-void ieee80211_dev_sysfs_del(struct ieee80211_local *local);
-int ieee80211_sysfs_init(void);
-void ieee80211_sysfs_deinit(void);
-int ieee80211_sysfs_change_if_type(struct net_device *dev);
-
-/* ieee80211_sysfs_sta.c */
-int ieee80211_sta_kset_sysfs_register(struct ieee80211_local *local);
-void ieee80211_sta_kset_sysfs_unregister(struct ieee80211_local *local);
-int ieee80211_sta_sysfs_add(struct sta_info *sta);
-void ieee80211_sta_sysfs_remove(struct sta_info *sta);
-int ieee80211_key_kset_sysfs_register(struct ieee80211_sub_if_data *sdata);
-void ieee80211_key_kset_sysfs_unregister(struct ieee80211_sub_if_data *sdata);
-void ieee80211_key_sysfs_set_kset(struct ieee80211_key *key, struct kset *kset);
-int ieee80211_key_sysfs_add(struct ieee80211_key *key);
-void ieee80211_key_sysfs_remove(struct ieee80211_key *key);
-int ieee80211_key_sysfs_add_default(struct ieee80211_sub_if_data *sdata);
-void ieee80211_key_sysfs_remove_default(struct ieee80211_sub_if_data *sdata);
-
-#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/d80211.h>
-#include "ieee80211_i.h"
-#include "sta_info.h"
-
-void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata)
-{
- int i;
-
- /* Default values for sub-interface parameters */
- sdata->drop_unencrypted = 0;
- sdata->eapol = 1;
- for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++)
- skb_queue_head_init(&sdata->fragments[i].skb_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,
- int format, struct net_device **new_dev)
-{
- struct net_device *ndev, *tmp_dev;
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_sub_if_data *sdata = NULL;
- int ret;
- int i;
-
- ASSERT_RTNL();
- ndev = *new_dev = alloc_netdev(sizeof(struct ieee80211_sub_if_data),
- "", ieee80211_if_setup);
- if (!ndev)
- return -ENOMEM;
-
- ndev->ieee80211_ptr = local;
- if (strlen(name) == 0) {
- i = 0;
- do {
- snprintf(ndev->name, sizeof(ndev->name), "%s.%d",
- dev->name, i++);
- tmp_dev = dev_get_by_name(ndev->name);
- if (!tmp_dev)
- break;
- dev_put(tmp_dev);
- } while (i < 10000);
- } else if (format) {
- ret = dev_alloc_name(ndev, name);
- if (ret < 0)
- goto fail;
- } else {
- snprintf(ndev->name, IFNAMSIZ, "%s", name);
- }
-
- memcpy(ndev->dev_addr, local->hw.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;
- ndev->flags = dev->flags & IFF_MULTICAST;
- SET_NETDEV_DEV(ndev, local->hw.dev);
-
- sdata = IEEE80211_DEV_TO_SUB_IF(ndev);
- sdata->type = IEEE80211_IF_TYPE_AP;
- sdata->dev = ndev;
- sdata->local = local;
- ieee80211_if_sdata_init(sdata);
-
- ret = register_netdevice(ndev);
- if (ret)
- goto fail;
- ret = ieee80211_sysfs_add_netdevice(ndev);
- if (ret) {
- /* ndev will be freed by ndev->destructor */
- unregister_netdevice(ndev);
- *new_dev = NULL;
- return ret;
- }
-
- list_add(&sdata->list, &local->sub_if_list);
- ieee80211_update_default_wep_only(local);
-
- return 0;
-
-fail:
- free_netdev(ndev);
- *new_dev = NULL;
- return ret;
-}
-
-int ieee80211_if_add_mgmt(struct ieee80211_local *local)
-{
- struct net_device *ndev;
- struct ieee80211_sub_if_data *nsdata;
- int ret;
-
- ASSERT_RTNL();
-
- ndev = alloc_netdev(sizeof(struct ieee80211_sub_if_data), "",
- ieee80211_if_mgmt_setup);
- if (!ndev)
- return -ENOMEM;
- ret = dev_alloc_name(ndev, "wmgmt%d");
- if (ret < 0)
- goto fail;
-
- ndev->ieee80211_ptr = local;
- memcpy(ndev->dev_addr, local->hw.perm_addr, ETH_ALEN);
- SET_NETDEV_DEV(ndev, local->hw.dev);
-
- nsdata = IEEE80211_DEV_TO_SUB_IF(ndev);
- nsdata->type = IEEE80211_IF_TYPE_MGMT;
- nsdata->dev = ndev;
- nsdata->local = local;
- ieee80211_if_sdata_init(nsdata);
-
- ret = register_netdevice(ndev);
- if (ret)
- goto fail;
- ret = ieee80211_sysfs_add_netdevice(ndev);
- if (ret)
- goto fail_sysfs;
- if (local->open_count > 0)
- dev_open(ndev);
- local->apdev = ndev;
- return 0;
-
-fail_sysfs:
- unregister_netdevice(ndev);
-fail:
- free_netdev(ndev);
- return ret;
-}
-
-void ieee80211_if_del_mgmt(struct ieee80211_local *local)
-{
- struct net_device *apdev;
-
- ASSERT_RTNL();
- apdev = local->apdev;
- ieee80211_sysfs_remove_netdevice(apdev);
- local->apdev = NULL;
- unregister_netdevice(apdev);
-}
-
-void ieee80211_if_set_type(struct net_device *dev, int type)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct ieee80211_local *local = dev->ieee80211_ptr;
-
- sdata->type = type;
- switch (type) {
- case IEEE80211_IF_TYPE_WDS:
- sdata->bss = NULL;
- break;
- case IEEE80211_IF_TYPE_VLAN:
- break;
- case IEEE80211_IF_TYPE_AP:
- sdata->u.ap.dtim_period = 2;
- 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;
- 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_DELAYED_WORK(&ifsta->work, ieee80211_sta_work);
-
- ifsta->capab = WLAN_CAPABILITY_ESS;
- ifsta->auth_algs = IEEE80211_AUTH_ALG_OPEN |
- IEEE80211_AUTH_ALG_SHARED_KEY;
- ifsta->create_ibss = 1;
- ifsta->wmm_enabled = 1;
-
- msdata = IEEE80211_DEV_TO_SUB_IF(sdata->local->mdev);
- sdata->bss = &msdata->u.ap;
- break;
- }
- case IEEE80211_IF_TYPE_MNTR:
- dev->type = ARPHRD_IEEE80211_PRISM;
- break;
- default:
- printk(KERN_WARNING "%s: %s: Unknown interface type 0x%x",
- dev->name, __FUNCTION__, type);
- }
- ieee80211_sysfs_change_if_type(dev);
- ieee80211_update_default_wep_only(local);
-}
-
-/* Must be called with rtnl lock held. */
-void ieee80211_if_reinit(struct net_device *dev)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- struct sta_info *sta;
- int i;
-
- ASSERT_RTNL();
- ieee80211_if_sdata_deinit(sdata);
- for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
- if (!sdata->keys[i])
- continue;
-#if 0
- /* The interface is down at the moment, so there is not
- * really much point in disabling the keys at this point. */
- memset(addr, 0xff, ETH_ALEN);
- if (local->ops->set_key)
- local->ops->set_key(local_to_hw(local), DISABLE_KEY, addr,
- local->keys[i], 0);
-#endif
- ieee80211_key_free(sdata->keys[i]);
- sdata->keys[i] = NULL;
- }
-
- switch (sdata->type) {
- 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->sub_if_list, 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);
- __ieee80211_if_del(local, tsdata);
- }
- }
-
- kfree(sdata->u.ap.beacon_head);
- kfree(sdata->u.ap.beacon_tail);
- kfree(sdata->u.ap.generic_elem);
-
- if (dev != local->mdev) {
- struct sk_buff *skb;
- 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_put(sta);
- sta_info_free(sta, 0);
- } else {
-#ifdef CONFIG_D80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: Someone had deleted my STA "
- "entry for the WDS link\n", dev->name);
-#endif /* CONFIG_D80211_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;
- }
-
- /* 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;
-
- list_del(&sdata->list);
- ieee80211_sysfs_remove_netdevice(dev);
- 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 = dev->ieee80211_ptr;
- struct ieee80211_sub_if_data *sdata, *n;
-
- ASSERT_RTNL();
-
- list_for_each_entry_safe(sdata, n, &local->sub_if_list, list) {
- if ((sdata->type == id || id == -1) &&
- strcmp(name, sdata->dev->name) == 0 &&
- sdata->dev != local->mdev) {
- __ieee80211_if_del(local, sdata);
- ieee80211_update_default_wep_only(local);
- return 0;
- }
- }
- return -ENODEV;
-}
-
-void ieee80211_if_free(struct net_device *dev)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- /* local->apdev must be NULL when freeing management interface */
- BUG_ON(dev == local->apdev);
- ieee80211_if_sdata_deinit(sdata);
- free_netdev(dev);
-}
-
-/* Must be called with rtnl lock held. */
-void ieee80211_if_flush(struct net_device *dev)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_sub_if_data *sdata, *n;
-
- ASSERT_RTNL();
- list_for_each_entry_safe(sdata, n, &local->sub_if_list, list) {
- __ieee80211_if_del(local, sdata);
- }
-}
-
-void ieee80211_if_del(struct net_device *dev)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- rtnl_lock();
- if (sdata->type == IEEE80211_IF_TYPE_MGMT)
- ieee80211_if_del_mgmt(local);
- else
- __ieee80211_if_del(local, sdata);
- rtnl_unlock();
-}
+++ /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/d80211.h>
-#include "ieee80211_i.h"
-#include "hostapd_ioctl.h"
-#include "ieee80211_rate.h"
-#include "wpa.h"
-#include "aes_ccm.h"
-
-
-static int ieee80211_regdom = 0x10; /* FCC */
-module_param(ieee80211_regdom, int, 0444);
-MODULE_PARM_DESC(ieee80211_regdom, "IEEE 802.11 regulatory domain; 64=MKK");
-
-/*
- * If firmware is upgraded by the vendor, additional channels can be used based
- * on the new Japanese regulatory rules. This is indicated by setting
- * ieee80211_japan_5ghz module parameter to one when loading the 80211 kernel
- * module.
- */
-static int ieee80211_japan_5ghz /* = 0 */;
-module_param(ieee80211_japan_5ghz, int, 0444);
-MODULE_PARM_DESC(ieee80211_japan_5ghz, "Vendor-updated firmware for 5 GHz");
-
-
-static int ieee80211_ioctl_set_beacon(struct net_device *dev,
- struct prism2_hostapd_param *param,
- int param_len,
- int flag)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_if_ap *ap;
- u8 **b_head, **b_tail;
- int *b_head_len, *b_tail_len;
- int len;
-
- len = ((char *) param->u.beacon.data - (char *) param) +
- param->u.beacon.head_len + param->u.beacon.tail_len;
-
- if (param_len > len)
- param_len = len;
- else if (param_len != len)
- return -EINVAL;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type != IEEE80211_IF_TYPE_AP)
- return -EINVAL;
- ap = &sdata->u.ap;
-
- switch (flag) {
- case 0:
- b_head = &ap->beacon_head;
- b_tail = &ap->beacon_tail;
- b_head_len = &ap->beacon_head_len;
- b_tail_len = &ap->beacon_tail_len;
- break;
- default:
- printk(KERN_DEBUG "%s: unknown beacon flag %d\n",
- dev->name, flag);
- return -EINVAL;
- }
-
- kfree(*b_head);
- kfree(*b_tail);
- *b_head = NULL;
- *b_tail = NULL;
-
- *b_head_len = param->u.beacon.head_len;
- *b_tail_len = param->u.beacon.tail_len;
-
- *b_head = kmalloc(*b_head_len, GFP_KERNEL);
- if (*b_head)
- memcpy(*b_head, param->u.beacon.data, *b_head_len);
- else {
- printk(KERN_DEBUG "%s: failed to allocate beacon_head\n",
- dev->name);
- return -ENOMEM;
- }
-
- if (*b_tail_len > 0) {
- *b_tail = kmalloc(*b_tail_len, GFP_KERNEL);
- if (*b_tail)
- memcpy(*b_tail, param->u.beacon.data + (*b_head_len),
- (*b_tail_len));
- else {
- printk(KERN_DEBUG "%s: failed to allocate "
- "beacon_tail\n", dev->name);
- return -ENOMEM;
- }
- }
-
- return ieee80211_if_config_beacon(dev);
-}
-
-
-static int ieee80211_ioctl_get_hw_features(struct net_device *dev,
- struct prism2_hostapd_param *param,
- int param_len)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- u8 *pos = param->u.hw_features.data;
- int left = param_len - (pos - (u8 *) param);
- int i;
- struct hostapd_ioctl_hw_modes_hdr *hdr;
- struct ieee80211_rate_data *rate;
- struct ieee80211_channel_data *chan;
- struct ieee80211_hw_mode *mode;
-
- param->u.hw_features.flags = 0;
- if (local->hw.flags & IEEE80211_HW_DATA_NULLFUNC_ACK)
- param->u.hw_features.flags |= HOSTAP_HW_FLAG_NULLFUNC_OK;
-
- param->u.hw_features.num_modes = 0;
- list_for_each_entry(mode, &local->modes_list, list) {
- int clen, rlen;
-
- param->u.hw_features.num_modes++;
- clen = mode->num_channels * sizeof(struct ieee80211_channel_data);
- rlen = mode->num_rates * sizeof(struct ieee80211_rate_data);
- if (left < sizeof(*hdr) + clen + rlen)
- return -E2BIG;
- left -= sizeof(*hdr) + clen + rlen;
-
- hdr = (struct hostapd_ioctl_hw_modes_hdr *) pos;
- hdr->mode = mode->mode;
- hdr->num_channels = mode->num_channels;
- hdr->num_rates = mode->num_rates;
-
- pos = (u8 *) (hdr + 1);
- chan = (struct ieee80211_channel_data *) pos;
- for (i = 0; i < mode->num_channels; i++) {
- chan[i].chan = mode->channels[i].chan;
- chan[i].freq = mode->channels[i].freq;
- chan[i].flag = mode->channels[i].flag;
- }
- pos += clen;
-
- rate = (struct ieee80211_rate_data *) pos;
- for (i = 0; i < mode->num_rates; i++) {
- rate[i].rate = mode->rates[i].rate;
- rate[i].flags = mode->rates[i].flags;
- }
- pos += rlen;
- }
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_scan(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
-
- if (!local->ops->passive_scan)
- return -EOPNOTSUPP;
-
- if ((param->u.scan.now == 1) && (local->scan.in_scan == 1))
- return -EBUSY;
-
- if (param->u.scan.our_mode_only >= 0)
- local->scan.our_mode_only = param->u.scan.our_mode_only;
- if (param->u.scan.interval >= 0)
- local->scan.interval = param->u.scan.interval;
- if (param->u.scan.listen >= 0)
- local->scan.time = param->u.scan.listen;
- if (param->u.scan.channel > 0)
- local->scan.channel = param->u.scan.channel;
- if (param->u.scan.now == 1) {
- local->scan.in_scan = 0;
- mod_timer(&local->scan.timer, jiffies);
- }
-
- param->u.scan.our_mode_only = local->scan.our_mode_only;
- param->u.scan.interval = local->scan.interval;
- param->u.scan.listen = local->scan.time;
- if (local->scan.in_scan == 1)
- param->u.scan.last_rx = -1;
- else {
- param->u.scan.last_rx = local->scan.rx_packets;
- local->scan.rx_packets = -1;
- }
- param->u.scan.channel =
- local->scan.mode->channels[local->scan.chan_idx].chan;
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_flush(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- sta_info_flush(local, NULL);
- return 0;
-}
-
-
-/* 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 net_device *dev,
- const u8 *addr)
-{
- 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, 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 = dev;
- skb->protocol = eth_type_trans(skb, dev);
- memset(skb->cb, 0, sizeof(skb->cb));
- netif_rx(skb);
-}
-
-
-static int ieee80211_ioctl_add_sta(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct sta_info *sta;
- u32 rates;
- int i, j;
- struct ieee80211_sub_if_data *sdata;
- int add_key_entry = 1;
-
- /* Prevent a race with changing the rate control algorithm */
- if (!netif_running(dev))
- return -ENETDOWN;
-
- sta = sta_info_get(local, param->sta_addr);
-
- if (!sta) {
- sta = sta_info_add(local, dev, param->sta_addr, GFP_KERNEL);
- if (!sta)
- return -ENOMEM;
- }
-
- if (sta->dev != dev) {
- /* Binding STA to a new interface, so remove all references to
- * the old BSS. */
- spin_lock_bh(&local->sta_lock);
- sta_info_remove_aid_ptr(sta);
- spin_unlock_bh(&local->sta_lock);
- }
-
- /* TODO
- * We "steal" the device in case someone owns it
- * This will hurt WDS links and such when we have a
- * WDS link and a client associating from the same station
- */
- sta->dev = dev;
- sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
-
- sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
- sta->aid = param->u.add_sta.aid;
- if (sta->aid > IEEE80211_MAX_AID)
- sta->aid = 0;
- sta->listen_interval = param->u.add_sta.listen_interval;
-
- rates = 0;
- for (i = 0; i < sizeof(param->u.add_sta.supp_rates); i++) {
- int rate = (param->u.add_sta.supp_rates[i] & 0x7f) * 5;
- if (local->hw.conf.phymode == MODE_ATHEROS_TURBO ||
- local->hw.conf.phymode == MODE_ATHEROS_TURBOG)
- rate *= 2;
- for (j = 0; j < local->num_curr_rates; j++) {
- if (local->curr_rates[j].rate == rate)
- rates |= BIT(j);
- }
-
- }
- sta->supp_rates = rates;
-
- rate_control_rate_init(sta, local);
-
- if (param->u.add_sta.wds_flags & 0x01)
- sta->flags |= WLAN_STA_WDS;
- else
- sta->flags &= ~WLAN_STA_WDS;
-
- if (add_key_entry && !sta->key && !sdata->default_key &&
- local->ops->set_key) {
- struct ieee80211_key_conf conf;
- /* Add key cache entry with NULL key type because this may used
- * for TX filtering. */
- memset(&conf, 0, sizeof(conf));
- conf.hw_key_idx = HW_KEY_IDX_INVALID;
- conf.alg = ALG_NULL;
- conf.flags |= IEEE80211_KEY_FORCE_SW_ENCRYPT;
- if (local->ops->set_key(local_to_hw(local), SET_KEY,
- sta->addr, &conf, sta->aid)) {
- sta->key_idx_compression = HW_KEY_IDX_INVALID;
- } else {
- sta->key_idx_compression = conf.hw_key_idx;
- }
- }
-
- sta_info_put(sta);
-
- if (sdata->type == IEEE80211_IF_TYPE_AP ||
- sdata->type == IEEE80211_IF_TYPE_VLAN)
- ieee80211_send_layer2_update(dev, param->sta_addr);
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_remove_sta(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct sta_info *sta;
-
- sta = sta_info_get(local, param->sta_addr);
- if (sta) {
- sta_info_put(sta);
- sta_info_free(sta, 0);
- }
-
- return sta ? 0 : -ENOENT;
-}
-
-
-static int ieee80211_ioctl_get_dot11counterstable(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_low_level_stats stats;
-
- memset(&stats, 0, sizeof(stats));
- if (local->ops->get_stats)
- local->ops->get_stats(local_to_hw(local), &stats);
- param->u.dot11CountersTable.dot11TransmittedFragmentCount =
- local->dot11TransmittedFragmentCount;
- param->u.dot11CountersTable.dot11MulticastTransmittedFrameCount =
- local->dot11MulticastTransmittedFrameCount;
- param->u.dot11CountersTable.dot11ReceivedFragmentCount =
- local->dot11ReceivedFragmentCount;
- param->u.dot11CountersTable.dot11MulticastReceivedFrameCount =
- local->dot11MulticastReceivedFrameCount;
- param->u.dot11CountersTable.dot11TransmittedFrameCount =
- local->dot11TransmittedFrameCount;
- param->u.dot11CountersTable.dot11FCSErrorCount =
- stats.dot11FCSErrorCount;
- param->u.dot11CountersTable.dot11ACKFailureCount =
- stats.dot11ACKFailureCount;
- param->u.dot11CountersTable.dot11RTSFailureCount =
- stats.dot11RTSFailureCount;
- param->u.dot11CountersTable.dot11RTSSuccessCount =
- stats.dot11RTSSuccessCount;
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_get_info_sta(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct sta_info *sta;
-
- if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
- param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
- param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
- struct net_device_stats *stats;
-
- stats = ieee80211_dev_stats(local->mdev);
- param->u.get_info_sta.rx_bytes = stats->rx_bytes;
- param->u.get_info_sta.tx_bytes = stats->tx_bytes;
- /* go through all STAs and get STA with lowest max. rate */
- param->u.get_info_sta.current_tx_rate =
- local->curr_rates[sta_info_min_txrate_get(local)].rate;
- return 0;
- }
-
- sta = sta_info_get(local, param->sta_addr);
-
- if (!sta)
- return -ENOENT;
-
- param->u.get_info_sta.inactive_msec =
- jiffies_to_msecs(jiffies - sta->last_rx);
- param->u.get_info_sta.rx_packets = sta->rx_packets;
- param->u.get_info_sta.tx_packets = sta->tx_packets;
- param->u.get_info_sta.rx_bytes = sta->rx_bytes;
- param->u.get_info_sta.tx_bytes = sta->tx_bytes;
- param->u.get_info_sta.channel_use = sta->channel_use;
- param->u.get_info_sta.flags = sta->flags;
- if (sta->txrate >= 0 && sta->txrate < local->num_curr_rates)
- param->u.get_info_sta.current_tx_rate =
- local->curr_rates[sta->txrate].rate;
- param->u.get_info_sta.num_ps_buf_frames =
- skb_queue_len(&sta->ps_tx_buf);
- param->u.get_info_sta.tx_retry_failed = sta->tx_retry_failed;
- param->u.get_info_sta.tx_retry_count = sta->tx_retry_count;
- param->u.get_info_sta.last_rssi = sta->last_rssi;
- param->u.get_info_sta.last_ack_rssi = sta->last_ack_rssi[2];
-
- sta_info_put(sta);
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_set_flags_sta(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct sta_info *sta;
-
- sta = sta_info_get(local, param->sta_addr);
- if (sta) {
- sta->flags |= param->u.set_flags_sta.flags_or;
- sta->flags &= param->u.set_flags_sta.flags_and;
- if (local->ops->set_port_auth &&
- (param->u.set_flags_sta.flags_or & WLAN_STA_AUTHORIZED) &&
- local->ops->set_port_auth(local_to_hw(local), sta->addr, 1))
- printk(KERN_DEBUG "%s: failed to set low-level driver "
- "PAE state (authorized) for " MAC_FMT "\n",
- dev->name, MAC_ARG(sta->addr));
- if (local->ops->set_port_auth &&
- !(param->u.set_flags_sta.flags_and & WLAN_STA_AUTHORIZED) &&
- local->ops->set_port_auth(local_to_hw(local), sta->addr, 0))
- printk(KERN_DEBUG "%s: failed to set low-level driver "
- "PAE state (unauthorized) for " MAC_FMT "\n",
- dev->name, MAC_ARG(sta->addr));
- sta_info_put(sta);
- }
-
- return sta ? 0 : -ENOENT;
-}
-
-
-int ieee80211_set_hw_encryption(struct net_device *dev,
- struct sta_info *sta, u8 addr[ETH_ALEN],
- struct ieee80211_key *key)
-{
- struct ieee80211_key_conf *keyconf = NULL;
- struct ieee80211_local *local = dev->ieee80211_ptr;
- int rc = 0;
-
- /* default to sw encryption; this will be cleared by low-level
- * driver if the hw supports requested encryption */
- if (key)
- key->force_sw_encrypt = 1;
-
- if (key && local->ops->set_key &&
- (keyconf = ieee80211_key_data2conf(local, key))) {
- if (local->ops->set_key(local_to_hw(local), SET_KEY, addr,
- keyconf, sta ? sta->aid : 0)) {
- rc = HOSTAP_CRYPT_ERR_KEY_SET_FAILED;
- key->force_sw_encrypt = 1;
- key->hw_key_idx = HW_KEY_IDX_INVALID;
- } else {
- key->force_sw_encrypt =
- !!(keyconf->flags & IEEE80211_KEY_FORCE_SW_ENCRYPT);
- key->hw_key_idx =
- keyconf->hw_key_idx;
-
- }
- }
- kfree(keyconf);
-
- return rc;
-}
-
-
-static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
- int idx, int alg, int set_tx_key, int *err,
- const u8 *_key, size_t key_len)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- int ret = 0;
- struct sta_info *sta;
- struct ieee80211_key *key, *old_key;
- int try_hwaccel = 1;
- struct ieee80211_key_conf *keyconf;
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (sta_addr[0] == 0xff && sta_addr[1] == 0xff &&
- sta_addr[2] == 0xff && sta_addr[3] == 0xff &&
- sta_addr[4] == 0xff && sta_addr[5] == 0xff) {
- sta = NULL;
- if (idx >= NUM_DEFAULT_KEYS) {
- printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n",
- dev->name, idx);
- return -EINVAL;
- }
- key = sdata->keys[idx];
-
- /* TODO: consider adding hwaccel support for these; at least
- * Atheros key cache should be able to handle this since AP is
- * only transmitting frames with default keys. */
- /* FIX: hw key cache can be used when only one virtual
- * STA is associated with each AP. If more than one STA
- * is associated to the same AP, software encryption
- * must be used. This should be done automatically
- * based on configured station devices. For the time
- * being, this can be only set at compile time. */
- } else {
- set_tx_key = 0;
- if (idx != 0) {
- 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) {
- if (err)
- *err = HOSTAP_CRYPT_ERR_UNKNOWN_ADDR;
-#ifdef CONFIG_D80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: set_encrypt - unknown addr "
- MAC_FMT "\n",
- dev->name, MAC_ARG(sta_addr));
-#endif /* CONFIG_D80211_VERBOSE_DEBUG */
-
- return -ENOENT;
- }
-
- key = sta->key;
- }
-
- /* FIX:
- * Cannot configure default hwaccel keys with WEP algorithm, if
- * any of the virtual interfaces is using static WEP
- * configuration because hwaccel would otherwise try to decrypt
- * these frames.
- *
- * For now, just disable WEP hwaccel for broadcast when there is
- * possibility of conflict with default keys. This can maybe later be
- * optimized by using non-default keys (at least with Atheros ar521x).
- */
- if (!sta && alg == ALG_WEP && !local->default_wep_only &&
- sdata->type != IEEE80211_IF_TYPE_IBSS &&
- sdata->type != IEEE80211_IF_TYPE_AP) {
- try_hwaccel = 0;
- }
-
- if (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP) {
- /* Software encryption cannot be used with devices that hide
- * encryption from the host system, so always try to use
- * hardware acceleration with such devices. */
- try_hwaccel = 1;
- }
-
- if ((local->hw.flags & IEEE80211_HW_NO_TKIP_WMM_HWACCEL) &&
- alg == ALG_TKIP) {
- if (sta && (sta->flags & WLAN_STA_WME)) {
- /* Hardware does not support hwaccel with TKIP when using WMM.
- */
- try_hwaccel = 0;
- }
- else if (sdata->type == IEEE80211_IF_TYPE_STA) {
- sta = sta_info_get(local, sdata->u.sta.bssid);
- if (sta) {
- if (sta->flags & WLAN_STA_WME) {
- try_hwaccel = 0;
- }
- sta_info_put(sta);
- sta = NULL;
- }
- }
- }
-
- if (alg == ALG_NONE) {
- keyconf = NULL;
- if (try_hwaccel && key &&
- key->hw_key_idx != HW_KEY_IDX_INVALID &&
- local->ops->set_key &&
- (keyconf = ieee80211_key_data2conf(local, key)) != NULL &&
- local->ops->set_key(local_to_hw(local), DISABLE_KEY,
- sta_addr, keyconf, sta ? sta->aid : 0)) {
- if (err)
- *err = HOSTAP_CRYPT_ERR_KEY_SET_FAILED;
- printk(KERN_DEBUG "%s: set_encrypt - low-level disable"
- " failed\n", dev->name);
- ret = -EINVAL;
- }
- kfree(keyconf);
-
- if (key && sdata->default_key == key) {
- ieee80211_key_sysfs_remove_default(sdata);
- sdata->default_key = NULL;
- }
- ieee80211_key_sysfs_remove(key);
- if (sta)
- sta->key = NULL;
- else
- sdata->keys[idx] = NULL;
- ieee80211_key_free(key);
- key = NULL;
- } else {
- old_key = key;
- key = ieee80211_key_alloc(sta ? NULL : sdata, idx, key_len,
- GFP_KERNEL);
- if (!key) {
- ret = -ENOMEM;
- goto err_out;
- }
-
- /* default to sw encryption; low-level driver sets these if the
- * requested encryption is supported */
- key->hw_key_idx = HW_KEY_IDX_INVALID;
- key->force_sw_encrypt = 1;
-
- key->alg = alg;
- key->keyidx = idx;
- key->keylen = key_len;
- memcpy(key->key, _key, key_len);
- if (set_tx_key)
- key->default_tx_key = 1;
-
- 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->key);
- if (!key->u.ccmp.tfm) {
- ret = -ENOMEM;
- goto err_free;
- }
- }
-
- if (old_key && sdata->default_key == old_key) {
- ieee80211_key_sysfs_remove_default(sdata);
- sdata->default_key = NULL;
- }
- ieee80211_key_sysfs_remove(old_key);
- if (sta)
- sta->key = key;
- else
- sdata->keys[idx] = key;
- ieee80211_key_free(old_key);
- if (sta)
- key->kobj.parent = &sta->kobj;
- ret = ieee80211_key_sysfs_add(key);
- if (ret)
- goto err_null;
-
- if (try_hwaccel &&
- (alg == ALG_WEP || alg == ALG_TKIP || alg == ALG_CCMP)) {
- int e = ieee80211_set_hw_encryption(dev, sta, sta_addr,
- key);
- if (err)
- *err = e;
- }
- }
-
- if (set_tx_key || (!sta && !sdata->default_key && key)) {
- sdata->default_key = key;
- if (ieee80211_key_sysfs_add_default(sdata))
- printk(KERN_WARNING "%s: cannot create symlink to "
- "default key\n", dev->name);
- if (local->ops->set_key_idx &&
- local->ops->set_key_idx(local_to_hw(local), idx))
- printk(KERN_DEBUG "%s: failed to set TX key idx for "
- "low-level driver\n", dev->name);
- }
-
- if (sta)
- sta_info_put(sta);
-
- return 0;
-
-err_null:
- if (sta)
- sta->key = NULL;
- else
- sdata->keys[idx] = NULL;
-err_free:
- ieee80211_key_free(key);
-err_out:
- if (sta)
- sta_info_put(sta);
- return ret;
-}
-
-
-static int ieee80211_ioctl_set_encryption(struct net_device *dev,
- struct prism2_hostapd_param *param,
- int param_len)
-{
- int alg;
-
- param->u.crypt.err = 0;
- param->u.crypt.alg[HOSTAP_CRYPT_ALG_NAME_LEN - 1] = '\0';
-
- if (param_len <
- (int) ((char *) param->u.crypt.key - (char *) param) +
- param->u.crypt.key_len) {
- printk(KERN_DEBUG "%s: set_encrypt - invalid param_lem\n",
- dev->name);
- return -EINVAL;
- }
-
- if (strcmp(param->u.crypt.alg, "none") == 0)
- alg = ALG_NONE;
- else if (strcmp(param->u.crypt.alg, "WEP") == 0)
- alg = ALG_WEP;
- else if (strcmp(param->u.crypt.alg, "TKIP") == 0) {
- if (param->u.crypt.key_len != ALG_TKIP_KEY_LEN) {
- printk(KERN_DEBUG "%s: set_encrypt - invalid TKIP key "
- "length %d\n", dev->name,
- param->u.crypt.key_len);
- return -EINVAL;
- }
- alg = ALG_TKIP;
- } else if (strcmp(param->u.crypt.alg, "CCMP") == 0) {
- if (param->u.crypt.key_len != ALG_CCMP_KEY_LEN) {
- printk(KERN_DEBUG "%s: set_encrypt - invalid CCMP key "
- "length %d\n", dev->name,
- param->u.crypt.key_len);
- return -EINVAL;
- }
- alg = ALG_CCMP;
- } else {
- param->u.crypt.err = HOSTAP_CRYPT_ERR_UNKNOWN_ALG;
- printk(KERN_DEBUG "%s: set_encrypt - unknown alg\n",
- dev->name);
- return -EINVAL;
- }
-
- return ieee80211_set_encryption(
- dev, param->sta_addr,
- param->u.crypt.idx, alg,
- param->u.crypt.flags & HOSTAP_CRYPT_FLAG_SET_TX_KEY,
- ¶m->u.crypt.err, param->u.crypt.key,
- param->u.crypt.key_len);
-}
-
-
-static int ieee80211_ioctl_get_encryption(struct net_device *dev,
- struct prism2_hostapd_param *param,
- int param_len)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- int ret = 0;
- struct sta_info *sta;
- struct ieee80211_key **key;
- int max_key_len;
- struct ieee80211_sub_if_data *sdata;
- u8 *pos;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- param->u.crypt.err = 0;
-
- max_key_len = param_len -
- (int) ((char *) param->u.crypt.key - (char *) param);
- if (max_key_len < 0)
- return -EINVAL;
-
- if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
- param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
- param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
- sta = NULL;
- if (param->u.crypt.idx >= NUM_DEFAULT_KEYS) {
- param->u.crypt.idx = sdata->default_key ?
- sdata->default_key->keyidx : 0;
- return 0;
- } else
- key = &sdata->keys[param->u.crypt.idx];
- } else {
- sta = sta_info_get(local, param->sta_addr);
- if (!sta) {
- param->u.crypt.err = HOSTAP_CRYPT_ERR_UNKNOWN_ADDR;
- return -EINVAL;
- }
-
- key = &sta->key;
- }
-
- memset(param->u.crypt.seq_counter, 0, HOSTAP_SEQ_COUNTER_SIZE);
- if (!*key) {
- memcpy(param->u.crypt.alg, "none", 5);
- param->u.crypt.key_len = 0;
- param->u.crypt.idx = 0xff;
- } else {
- switch ((*key)->alg) {
- case ALG_WEP:
- memcpy(param->u.crypt.alg, "WEP", 4);
- break;
- case ALG_TKIP:
- {
- u32 iv32;
- u16 iv16;
-
- memcpy(param->u.crypt.alg, "TKIP", 5);
- if (local->ops->get_sequence_counter) {
- /* Get transmit counter from low level driver */
- if (local->ops->get_sequence_counter(
- local_to_hw(local),
- param->sta_addr,
- (*key)->keyidx,
- IEEE80211_SEQ_COUNTER_TX,
- &iv32,
- &iv16)) {
- /* Error getting value from device */
- return -EIO;
- }
- } else {
- /* Get it from our own local data */
- iv32 = (*key)->u.tkip.iv32;
- iv16 = (*key)->u.tkip.iv16;
- }
- pos = param->u.crypt.seq_counter;
- *pos++ = iv16 & 0xff;
- *pos++ = (iv16 >> 8) & 0xff;
- *pos++ = iv32 & 0xff;
- *pos++ = (iv32 >> 8) & 0xff;
- *pos++ = (iv32 >> 16) & 0xff;
- *pos++ = (iv32 >> 24) & 0xff;
- break;
- }
- case ALG_CCMP:
- {
- u8 *pn;
- memcpy(param->u.crypt.alg, "CCMP", 5);
- pos = param->u.crypt.seq_counter;
- pn = (*key)->u.ccmp.tx_pn;
- *pos++ = pn[5];
- *pos++ = pn[4];
- *pos++ = pn[3];
- *pos++ = pn[2];
- *pos++ = pn[1];
- *pos++ = pn[0];
- break;
- }
- default:
- memcpy(param->u.crypt.alg, "unknown", 8);
- break;
- }
-
- if (max_key_len < (*key)->keylen)
- ret = -E2BIG;
- else {
- param->u.crypt.key_len = (*key)->keylen;
- memcpy(param->u.crypt.key, (*key)->key,
- (*key)->keylen);
- }
- }
-
- if (sta)
- sta_info_put(sta);
-
- return ret;
-}
-
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-static int ieee80211_ioctl_wpa_trigger(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct sta_info *sta;
-
- if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
- param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
- param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
- local->wpa_trigger = param->u.wpa_trigger.trigger;
- return 0;
- }
-
- sta = sta_info_get(local, param->sta_addr);
- if (!sta) {
- printk(KERN_DEBUG "%s: wpa_trigger - unknown addr\n",
- dev->name);
- return -EINVAL;
- }
-
- sta->wpa_trigger = param->u.wpa_trigger.trigger;
-
- sta_info_put(sta);
- return 0;
-}
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
-
-static int ieee80211_ioctl_set_rate_sets(struct net_device *dev,
- struct prism2_hostapd_param *param,
- int param_len)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- u16 *pos = (u16 *) param->u.set_rate_sets.data;
- int left = param_len - ((u8 *) pos - (u8 *) param);
- int i, mode, num_supp, num_basic, *supp, *basic, *prev;
-
- mode = param->u.set_rate_sets.mode;
- num_supp = param->u.set_rate_sets.num_supported_rates;
- num_basic = param->u.set_rate_sets.num_basic_rates;
-
- if (left < (num_supp + num_basic) * 2) {
- printk(KERN_WARNING "%s: invalid length in hostapd set rate "
- "sets ioctl (%d != %d)\n", dev->name, left,
- (num_supp + num_basic) * 2);
- return -EINVAL;
- }
-
- supp = (int *) kmalloc((num_supp + 1) * sizeof(int), GFP_KERNEL);
- basic = (int *) kmalloc((num_basic + 1) * sizeof(int), GFP_KERNEL);
-
- if (!supp || !basic) {
- kfree(supp);
- kfree(basic);
- return -ENOMEM;
- }
-
- for (i = 0; i < num_supp; i++)
- supp[i] = *pos++;
- supp[i] = -1;
-
- for (i = 0; i < num_basic; i++)
- basic[i] = *pos++;
- basic[i] = -1;
-
- if (num_supp == 0) {
- kfree(supp);
- supp = NULL;
- }
-
- if (num_basic == 0) {
- kfree(basic);
- basic = NULL;
- }
-
- prev = local->supp_rates[mode];
- local->supp_rates[mode] = supp;
- kfree(prev);
-
- prev = local->basic_rates[mode];
- local->basic_rates[mode] = basic;
- kfree(prev);
-
- if (mode == local->hw.conf.phymode) {
- /* TODO: should update STA TX rates and remove STAs if they
- * do not have any remaining supported rates after the change
- */
- ieee80211_prepare_rates(local);
- }
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_add_if(struct net_device *dev,
- struct prism2_hostapd_param *param,
- int param_len)
-{
- u8 *pos = param->u.if_info.data;
- int left = param_len - ((u8 *) pos - (u8 *) param);
- struct net_device *new_dev;
- int res;
- struct hostapd_if_wds *wds;
- struct hostapd_if_bss *bss;
-
- printk(KERN_WARNING "PRISM2_HOSTAPD_ADD_IF ioctl is deprecated!");
- switch (param->u.if_info.type) {
- case HOSTAP_IF_WDS:
- wds = (struct hostapd_if_wds *) param->u.if_info.data;
-
- if (left < sizeof(struct hostapd_if_wds))
- return -EPROTO;
-
- res = ieee80211_if_add(dev, param->u.if_info.name, 0, &new_dev);
- if (res)
- return res;
- ieee80211_if_set_type(new_dev, IEEE80211_IF_TYPE_WDS);
- res = ieee80211_if_update_wds(new_dev, wds->remote_addr);
- if (res)
- __ieee80211_if_del(dev->ieee80211_ptr,
- IEEE80211_DEV_TO_SUB_IF(new_dev));
- return res;
- case HOSTAP_IF_VLAN:
- if (left < sizeof(struct hostapd_if_vlan))
- return -EPROTO;
-
- res = ieee80211_if_add(dev, param->u.if_info.name, 0, &new_dev);
- if (res)
- return res;
- ieee80211_if_set_type(new_dev, IEEE80211_IF_TYPE_VLAN);
-#if 0
- res = ieee80211_if_update_vlan(new_dev, vlan->id);
- if (res)
- __ieee80211_if_del(dev->ieee80211_ptr,
- IEEE80211_DEV_TO_SUB_IF(new_dev));
-#endif
- return res;
- case HOSTAP_IF_BSS:
- bss = (struct hostapd_if_bss *) param->u.if_info.data;
-
- if (left < sizeof(struct hostapd_if_bss))
- return -EPROTO;
-
- res = ieee80211_if_add(dev, param->u.if_info.name, 0, &new_dev);
- if (res)
- return res;
- ieee80211_if_set_type(new_dev, IEEE80211_IF_TYPE_AP);
- memcpy(new_dev->dev_addr, bss->bssid, ETH_ALEN);
- return 0;
- case HOSTAP_IF_STA:
- if (left < sizeof(struct hostapd_if_sta))
- return -EPROTO;
-
- res = ieee80211_if_add(dev, param->u.if_info.name, 0, &new_dev);
- if (res)
- return res;
- ieee80211_if_set_type(new_dev, IEEE80211_IF_TYPE_STA);
- return 0;
- default:
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int ieee80211_ioctl_remove_if(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- unsigned int type;
-
- switch (param->u.if_info.type) {
- case HOSTAP_IF_WDS:
- type = IEEE80211_IF_TYPE_WDS;
- break;
- case HOSTAP_IF_VLAN:
- type = IEEE80211_IF_TYPE_VLAN;
- break;
- case HOSTAP_IF_BSS:
- type = IEEE80211_IF_TYPE_AP;
- break;
- case HOSTAP_IF_STA:
- type = IEEE80211_IF_TYPE_STA;
- break;
- default:
- return -EINVAL;
- }
-
- return ieee80211_if_remove(dev, param->u.if_info.name, type);
-}
-
-static int ieee80211_ioctl_update_if(struct net_device *dev,
- struct prism2_hostapd_param *param,
- int param_len)
-{
- u8 *pos = param->u.if_info.data;
- int left = param_len - ((u8 *) pos - (u8 *) param);
-
- if (param->u.if_info.type == HOSTAP_IF_WDS) {
- struct hostapd_if_wds *wds =
- (struct hostapd_if_wds *) param->u.if_info.data;
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct net_device *wds_dev = NULL;
- struct ieee80211_sub_if_data *sdata;
-
- if (left < sizeof(struct ieee80211_if_wds))
- return -EPROTO;
-
- list_for_each_entry(sdata, &local->sub_if_list, list) {
- if (strcmp(param->u.if_info.name,
- sdata->dev->name) == 0) {
- wds_dev = sdata->dev;
- break;
- }
- }
-
- if (!wds_dev || sdata->type != IEEE80211_IF_TYPE_WDS)
- return -ENODEV;
-
- return ieee80211_if_update_wds(wds_dev, wds->remote_addr);
- } else {
- return -EOPNOTSUPP;
- }
-}
-
-
-static int ieee80211_ioctl_flush_ifs(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- ieee80211_if_flush(dev);
- return 0;
-}
-
-
-static int ieee80211_ioctl_scan_req(struct net_device *dev,
- struct prism2_hostapd_param *param,
- int param_len)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- u8 *pos = param->u.scan_req.ssid;
- int left = param_len - ((u8 *) pos - (u8 *) param);
- int len = param->u.scan_req.ssid_len;
-
- if (local->user_space_mlme)
- return -EOPNOTSUPP;
-
- if (!netif_running(dev))
- return -ENETDOWN;
-
- if (left < len || len > IEEE80211_MAX_SSID_LEN)
- return -EINVAL;
-
- return ieee80211_sta_req_scan(dev, pos, len);
-}
-
-
-static int ieee80211_ioctl_sta_get_state(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type != IEEE80211_IF_TYPE_STA &&
- sdata->type != IEEE80211_IF_TYPE_IBSS)
- return -EINVAL;
- param->u.sta_get_state.state = sdata->u.sta.state;
- return 0;
-}
-
-
-static int ieee80211_ioctl_mlme(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_sub_if_data *sdata;
-
- if (local->user_space_mlme)
- return -EOPNOTSUPP;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type != IEEE80211_IF_TYPE_STA &&
- sdata->type != IEEE80211_IF_TYPE_IBSS)
- return -EINVAL;
- switch (param->u.mlme.cmd) {
- case MLME_STA_DEAUTH:
- return ieee80211_sta_deauthenticate(dev, param->u.mlme.reason_code);
- case MLME_STA_DISASSOC:
- return ieee80211_sta_disassociate(dev, param->u.mlme.reason_code);
- }
- return 0;
-}
-
-
-static int ieee80211_ioctl_get_load_stats(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
-
- param->u.get_load_stats.channel_use = local->channel_use;
-/* if (param->u.get_load_stats.flags & LOAD_STATS_CLEAR)
- local->channel_use = 0; */ /* now it's not raw counter */
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_set_sta_vlan(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct sta_info *sta;
-
- sta = sta_info_get(local, param->sta_addr);
- if (sta) {
- struct net_device *new_vlan_dev;
- new_vlan_dev =
- dev_get_by_name(param->u.set_sta_vlan.vlan_name);
- if (new_vlan_dev) {
-#if 0
- printk("%s: Station " MAC_FMT " moved to vlan: %s\n",
- dev->name, MAC_ARG(param->sta_addr),
- new_vlan_dev->name);
-#endif
- if (sta->dev != new_vlan_dev) {
- ieee80211_send_layer2_update(new_vlan_dev,
- sta->addr);
- }
- sta->dev = new_vlan_dev;
- sta->vlan_id = param->u.set_sta_vlan.vlan_id;
- dev_put(new_vlan_dev);
- }
- sta_info_put(sta);
- }
-
- return sta ? 0 : -ENOENT;
-}
-
-
-static int ieee80211_set_gen_ie(struct net_device *dev, u8 *ie, size_t len)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_local *local = dev->ieee80211_ptr;
-
- if (local->user_space_mlme)
- return -EOPNOTSUPP;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS)
- return ieee80211_sta_set_extra_ie(dev, ie, len);
-
- if (sdata->type == IEEE80211_IF_TYPE_AP) {
- kfree(sdata->u.ap.generic_elem);
- sdata->u.ap.generic_elem = kmalloc(len, GFP_KERNEL);
- if (!sdata->u.ap.generic_elem)
- return -ENOMEM;
- memcpy(sdata->u.ap.generic_elem, ie, len);
- sdata->u.ap.generic_elem_len = len;
- return ieee80211_if_config(dev);
- }
- return -EOPNOTSUPP;
-}
-
-
-static int
-ieee80211_ioctl_set_generic_info_elem(struct net_device *dev,
- struct prism2_hostapd_param *param,
- int param_len)
-{
- u8 *pos = param->u.set_generic_info_elem.data;
- int left = param_len - ((u8 *) pos - (u8 *) param);
- int len = param->u.set_generic_info_elem.len;
-
- if (left < len)
- return -EINVAL;
-
- return ieee80211_set_gen_ie(dev, pos, len);
-}
-
-
-static int ieee80211_ioctl_set_regulatory_domain(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_conf *conf = &local->hw.conf;
- conf->regulatory_domain = param->u.set_regulatory_domain.rd;
- return 0;
-}
-
-
-static int ieee80211_ioctl_set_radio_enabled(struct net_device *dev,
- int val)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_conf *conf = &local->hw.conf;
-
- conf->radio_enabled = val;
- return ieee80211_hw_config(dev->ieee80211_ptr);
-}
-
-static int
-ieee80211_ioctl_set_tx_queue_params(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_tx_queue_params qparam;
-
- if (!local->ops->conf_tx) {
- printk(KERN_DEBUG "%s: low-level driver does not support TX "
- "queue configuration\n", dev->name);
- return -EOPNOTSUPP;
- }
-
- memset(&qparam, 0, sizeof(qparam));
- qparam.aifs = param->u.tx_queue_params.aifs;
- qparam.cw_min = param->u.tx_queue_params.cw_min;
- qparam.cw_max = param->u.tx_queue_params.cw_max;
- qparam.burst_time = param->u.tx_queue_params.burst_time;
-
- return local->ops->conf_tx(local_to_hw(local),
- param->u.tx_queue_params.queue,
- &qparam);
-}
-
-
-static int ieee80211_ioctl_get_tx_stats(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_tx_queue_stats stats;
- int ret, i;
-
- if (!local->ops->get_tx_stats)
- return -EOPNOTSUPP;
-
- memset(&stats, 0, sizeof(stats));
- ret = local->ops->get_tx_stats(local_to_hw(local), &stats);
- if (ret)
- return ret;
-
- for (i = 0; i < 4; i++) {
- param->u.get_tx_stats.data[i].len = stats.data[i].len;
- param->u.get_tx_stats.data[i].limit = stats.data[i].limit;
- param->u.get_tx_stats.data[i].count = stats.data[i].count;
- }
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_set_channel_flag(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_hw_mode *mode;
- struct ieee80211_channel *chan = NULL;
- int i;
-
- list_for_each_entry(mode, &local->modes_list, list) {
- if (mode->mode == param->u.set_channel_flag.mode)
- goto found;
- }
- return -ENOENT;
-found:
-
- for (i = 0; i < mode->num_channels; i++) {
- chan = &mode->channels[i];
- if (chan->chan == param->u.set_channel_flag.chan)
- break;
- chan = NULL;
- }
-
- if (!chan)
- return -ENOENT;
-
- chan->flag = param->u.set_channel_flag.flag;
- chan->power_level = param->u.set_channel_flag.power_level;
- chan->antenna_max = param->u.set_channel_flag.antenna_max;
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_set_quiet_params(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_conf *conf = &local->hw.conf;
-
- conf->quiet_duration = param->u.quiet.duration;
- conf->quiet_offset = param->u.quiet.offset;
- conf->quiet_period = param->u.quiet.period;
- return 0;
-}
-
-
-static int ieee80211_ioctl_set_radar_params(struct net_device *dev,
- struct prism2_hostapd_param *param)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_conf *conf = &local->hw.conf;
-
- conf->radar_firpwr_threshold = param->u.radar.radar_firpwr_threshold;
- conf->radar_rssi_threshold = param->u.radar.radar_rssi_threshold;
- conf->pulse_height_threshold = param->u.radar.pulse_height_threshold;
- conf->pulse_rssi_threshold = param->u.radar.pulse_rssi_threshold;
- conf->pulse_inband_threshold = param->u.radar.pulse_inband_threshold;
- return 0;
-}
-
-
-static int ieee80211_ioctl_priv_hostapd(struct net_device *dev,
- struct iw_point *p)
-{
- struct prism2_hostapd_param *param;
- int ret = 0;
-
- if (p->length < sizeof(struct prism2_hostapd_param) ||
- p->length > PRISM2_HOSTAPD_MAX_BUF_SIZE || !p->pointer) {
- printk(KERN_DEBUG "%s: hostapd ioctl: ptr=%p len=%d min=%d "
- "max=%d\n", dev->name, p->pointer, p->length,
- (int)sizeof(struct prism2_hostapd_param),
- PRISM2_HOSTAPD_MAX_BUF_SIZE);
- return -EINVAL;
- }
-
- param = (struct prism2_hostapd_param *) kmalloc(p->length, GFP_KERNEL);
- if (!param)
- return -ENOMEM;
-
- if (copy_from_user(param, p->pointer, p->length)) {
- ret = -EFAULT;
- goto out;
- }
-
- switch (param->cmd) {
- case PRISM2_HOSTAPD_FLUSH:
- ret = ieee80211_ioctl_flush(dev, param);
- break;
- case PRISM2_HOSTAPD_ADD_STA:
- ret = ieee80211_ioctl_add_sta(dev, param);
- break;
- case PRISM2_HOSTAPD_REMOVE_STA:
- ret = ieee80211_ioctl_remove_sta(dev, param);
- break;
- case PRISM2_HOSTAPD_GET_INFO_STA:
- ret = ieee80211_ioctl_get_info_sta(dev, param);
- break;
- case PRISM2_SET_ENCRYPTION:
- ret = ieee80211_ioctl_set_encryption(dev, param, p->length);
- break;
- case PRISM2_GET_ENCRYPTION:
- ret = ieee80211_ioctl_get_encryption(dev, param, p->length);
- break;
- case PRISM2_HOSTAPD_SET_FLAGS_STA:
- ret = ieee80211_ioctl_set_flags_sta(dev, param);
- break;
- case PRISM2_HOSTAPD_SET_BEACON:
- ret = ieee80211_ioctl_set_beacon(dev, param, p->length, 0);
- break;
- case PRISM2_HOSTAPD_GET_HW_FEATURES:
- ret = ieee80211_ioctl_get_hw_features(dev, param, p->length);
- break;
- case PRISM2_HOSTAPD_SCAN:
- ret = ieee80211_ioctl_scan(dev, param);
- break;
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- case PRISM2_HOSTAPD_WPA_TRIGGER:
- ret = ieee80211_ioctl_wpa_trigger(dev, param);
- break;
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
- case PRISM2_HOSTAPD_SET_RATE_SETS:
- ret = ieee80211_ioctl_set_rate_sets(dev, param, p->length);
- break;
- case PRISM2_HOSTAPD_ADD_IF:
- ret = ieee80211_ioctl_add_if(dev, param, p->length);
- break;
- case PRISM2_HOSTAPD_REMOVE_IF:
- ret = ieee80211_ioctl_remove_if(dev, param);
- break;
- case PRISM2_HOSTAPD_GET_DOT11COUNTERSTABLE:
- ret = ieee80211_ioctl_get_dot11counterstable(dev, param);
- break;
- case PRISM2_HOSTAPD_GET_LOAD_STATS:
- ret = ieee80211_ioctl_get_load_stats(dev, param);
- break;
- case PRISM2_HOSTAPD_SET_STA_VLAN:
- ret = ieee80211_ioctl_set_sta_vlan(dev, param);
- break;
- case PRISM2_HOSTAPD_SET_GENERIC_INFO_ELEM:
- ret = ieee80211_ioctl_set_generic_info_elem(dev, param,
- p->length);
- break;
- case PRISM2_HOSTAPD_SET_CHANNEL_FLAG:
- ret = ieee80211_ioctl_set_channel_flag(dev, param);
- break;
- case PRISM2_HOSTAPD_SET_REGULATORY_DOMAIN:
- ret = ieee80211_ioctl_set_regulatory_domain(dev, param);
- break;
- case PRISM2_HOSTAPD_SET_TX_QUEUE_PARAMS:
- ret = ieee80211_ioctl_set_tx_queue_params(dev, param);
- break;
- case PRISM2_HOSTAPD_GET_TX_STATS:
- ret = ieee80211_ioctl_get_tx_stats(dev, param);
- break;
- case PRISM2_HOSTAPD_UPDATE_IF:
- ret = ieee80211_ioctl_update_if(dev, param, p->length);
- break;
- case PRISM2_HOSTAPD_SCAN_REQ:
- ret = ieee80211_ioctl_scan_req(dev, param, p->length);
- break;
- case PRISM2_STA_GET_STATE:
- ret = ieee80211_ioctl_sta_get_state(dev, param);
- break;
- case PRISM2_HOSTAPD_MLME:
- ret = ieee80211_ioctl_mlme(dev, param);
- break;
- case PRISM2_HOSTAPD_FLUSH_IFS:
- ret = ieee80211_ioctl_flush_ifs(dev, param);
- break;
- case PRISM2_HOSTAPD_SET_RADAR_PARAMS:
- ret = ieee80211_ioctl_set_radar_params(dev, param);
- break;
- case PRISM2_HOSTAPD_SET_QUIET_PARAMS:
- ret = ieee80211_ioctl_set_quiet_params(dev, param);
- break;
- default:
- ret = -EOPNOTSUPP;
- break;
- }
-
- if (copy_to_user(p->pointer, param, p->length))
- ret = -EFAULT;
-
- out:
- kfree(param);
-
- return ret;
-}
-
-
-static int ieee80211_ioctl_giwname(struct net_device *dev,
- struct iw_request_info *info,
- char *name, char *extra)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
-
- switch (local->hw.conf.phymode) {
- case MODE_IEEE80211A:
- strcpy(name, "IEEE 802.11a");
- break;
- case MODE_IEEE80211B:
- strcpy(name, "IEEE 802.11b");
- break;
- case MODE_IEEE80211G:
- strcpy(name, "IEEE 802.11g");
- break;
- case MODE_ATHEROS_TURBO:
- strcpy(name, "5GHz Turbo");
- break;
- default:
- strcpy(name, "IEEE 802.11");
- break;
- }
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_giwrange(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- struct iw_range *range = (struct iw_range *) extra;
-
- data->length = sizeof(struct iw_range);
- memset(range, 0, sizeof(struct iw_range));
-
- range->we_version_compiled = WIRELESS_EXT;
- range->we_version_source = 14;
- 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->max_qual.qual = 100;
- range->max_qual.level = 146; /* set floor at -110 dBm (146 - 256) */
- range->max_qual.noise = 146;
- range->max_qual.updated = IW_QUAL_ALL_UPDATED;
-
- range->avg_qual.qual = 50;
- range->avg_qual.level = 0;
- range->avg_qual.noise = 0;
- range->avg_qual.updated = IW_QUAL_ALL_UPDATED;
-
- return 0;
-}
-
-
-struct ieee80211_channel_range {
- short start_freq;
- short end_freq;
- unsigned char power_level;
- unsigned char antenna_max;
-};
-
-static const struct ieee80211_channel_range ieee80211_fcc_channels[] = {
- { 2412, 2462, 27, 6 } /* IEEE 802.11b/g, channels 1..11 */,
- { 5180, 5240, 17, 6 } /* IEEE 802.11a, channels 36..48 */,
- { 5260, 5320, 23, 6 } /* IEEE 802.11a, channels 52..64 */,
- { 5745, 5825, 30, 6 } /* IEEE 802.11a, channels 149..165, outdoor */,
- { 0 }
-};
-
-static const struct ieee80211_channel_range ieee80211_mkk_channels[] = {
- { 2412, 2472, 20, 6 } /* IEEE 802.11b/g, channels 1..13 */,
- { 5170, 5240, 20, 6 } /* IEEE 802.11a, channels 34..48 */,
- { 5260, 5320, 20, 6 } /* IEEE 802.11a, channels 52..64 */,
- { 0 }
-};
-
-
-static const struct ieee80211_channel_range *channel_range =
- ieee80211_fcc_channels;
-
-
-static void ieee80211_unmask_channel(struct net_device *dev, int mode,
- struct ieee80211_channel *chan)
-{
- int i;
-
- chan->flag = 0;
-
- if (ieee80211_regdom == 64 &&
- (mode == MODE_ATHEROS_TURBO || mode == MODE_ATHEROS_TURBOG)) {
- /* Do not allow Turbo modes in Japan. */
- return;
- }
-
- for (i = 0; channel_range[i].start_freq; i++) {
- const struct ieee80211_channel_range *r = &channel_range[i];
- if (r->start_freq <= chan->freq && r->end_freq >= chan->freq) {
- if (ieee80211_regdom == 64 && !ieee80211_japan_5ghz &&
- chan->freq >= 5260 && chan->freq <= 5320) {
- /*
- * Skip new channels in Japan since the
- * firmware was not marked having been upgraded
- * by the vendor.
- */
- continue;
- }
-
- if (ieee80211_regdom == 0x10 &&
- (chan->freq == 5190 || chan->freq == 5210 ||
- chan->freq == 5230)) {
- /* Skip MKK channels when in FCC domain. */
- continue;
- }
-
- chan->flag |= IEEE80211_CHAN_W_SCAN |
- IEEE80211_CHAN_W_ACTIVE_SCAN |
- IEEE80211_CHAN_W_IBSS;
- chan->power_level = r->power_level;
- chan->antenna_max = r->antenna_max;
-
- if (ieee80211_regdom == 64 &&
- (chan->freq == 5170 || chan->freq == 5190 ||
- chan->freq == 5210 || chan->freq == 5230)) {
- /*
- * New regulatory rules in Japan have backwards
- * compatibility with old channels in 5.15-5.25
- * GHz band, but the station is not allowed to
- * use active scan on these old channels.
- */
- chan->flag &= ~IEEE80211_CHAN_W_ACTIVE_SCAN;
- }
-
- if (ieee80211_regdom == 64 &&
- (chan->freq == 5260 || chan->freq == 5280 ||
- chan->freq == 5300 || chan->freq == 5320)) {
- /*
- * IBSS is not allowed on 5.25-5.35 GHz band
- * due to radar detection requirements.
- */
- chan->flag &= ~IEEE80211_CHAN_W_IBSS;
- }
-
- break;
- }
- }
-}
-
-
-static int ieee80211_unmask_channels(struct net_device *dev)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_hw_mode *mode;
- int c;
-
- list_for_each_entry(mode, &local->modes_list, list) {
- for (c = 0; c < mode->num_channels; c++) {
- ieee80211_unmask_channel(dev, mode->mode,
- &mode->channels[c]);
- }
- }
- return 0;
-}
-
-
-int ieee80211_init_client(struct net_device *dev)
-{
- if (ieee80211_regdom == 0x40)
- channel_range = ieee80211_mkk_channels;
- ieee80211_unmask_channels(dev);
- 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->type == IEEE80211_IF_TYPE_VLAN)
- return -EOPNOTSUPP;
- if (netif_running(dev))
- return -EBUSY;
-
- switch (*mode) {
- case IW_MODE_MASTER:
- type = IEEE80211_IF_TYPE_AP;
- break;
- 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;
- case IW_MODE_REPEAT:
- type = IEEE80211_IF_TYPE_WDS;
- break;
- default:
- return -EINVAL;
- }
-
- if (type != sdata->type) {
- 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->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_ioctl_siwfreq(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_freq *freq, char *extra)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_hw_mode *mode;
- int c, nfreq, set = 0;
-
- /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
- if (freq->e == 0)
- nfreq = -1;
- else {
- int i, div = 1000000;
- for (i = 0; i < freq->e; i++)
- div /= 10;
- if (div > 0)
- nfreq = freq->m / div;
- else
- return -EINVAL;
- }
-
- list_for_each_entry(mode, &local->modes_list, list) {
- for (c = 0; c < mode->num_channels; c++) {
- struct ieee80211_channel *chan = &mode->channels[c];
- if (chan->flag & IEEE80211_CHAN_W_SCAN &&
- ((freq->e == 0 && chan->chan == freq->m) ||
- (freq->e > 0 && nfreq == chan->freq)) &&
- (local->enabled_modes & (1 << mode->mode))) {
- /* Use next_mode as the mode preference to
- * resolve non-unique channel numbers. */
- if (set && mode->mode != local->next_mode)
- continue;
-
- local->hw.conf.channel = chan->chan;
- local->hw.conf.channel_val = chan->val;
- local->hw.conf.power_level = chan->power_level;
- local->hw.conf.freq = chan->freq;
- local->hw.conf.phymode = mode->mode;
- local->hw.conf.antenna_max = chan->antenna_max;
- set++;
- }
- }
- }
-
- if (set) {
- local->sta_scanning = 0; /* Abort possible scan */
- return ieee80211_hw_config(local);
- }
-
- 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 = dev->ieee80211_ptr;
-
- /* TODO: in station mode (Managed/Ad-hoc) might need to poll low-level
- * driver for the current channel with firmware-based management */
-
- freq->m = local->hw.conf.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_local *local = dev->ieee80211_ptr;
- 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->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
- if (local->user_space_mlme) {
- if (len > IEEE80211_MAX_SSID_LEN)
- return -EINVAL;
- memcpy(sdata->u.sta.ssid, ssid, len);
- sdata->u.sta.ssid_len = len;
- return 0;
- }
- return ieee80211_sta_set_ssid(dev, ssid, len);
- }
-
- if (sdata->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->type == IEEE80211_IF_TYPE_STA ||
- sdata->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->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_local *local = dev->ieee80211_ptr;
- struct ieee80211_sub_if_data *sdata;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
- if (local->user_space_mlme) {
- memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
- ETH_ALEN);
- return 0;
- }
- return ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data);
- } else if (sdata->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->type == IEEE80211_IF_TYPE_STA ||
- sdata->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->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,
- struct iw_point *data, char *extra)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- u8 *ssid = NULL;
- size_t ssid_len = 0;
-
- if (!netif_running(dev))
- return -ENETDOWN;
-
- if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
- ssid = sdata->u.sta.ssid;
- ssid_len = sdata->u.sta.ssid_len;
- } else if (sdata->type == IEEE80211_IF_TYPE_AP) {
- ssid = sdata->u.ap.ssid;
- ssid_len = sdata->u.ap.ssid_len;
- } else
- return -EINVAL;
- }
- 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 = dev->ieee80211_ptr;
- if (local->sta_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_siwrts(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *rts, char *extra)
-{
- struct ieee80211_local *local = 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 = 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 = 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 = 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 = 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 = dev->ieee80211_ptr;
-
- retry->disabled = 0;
- if ((retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
- return -EINVAL;
- if (retry->flags & IW_RETRY_MAX) {
- retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
- retry->value = local->long_retry_limit;
- } else {
- 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;
-}
-
-
-static void ieee80211_ioctl_unmask_channels(struct ieee80211_local *local)
-{
- struct ieee80211_hw_mode *mode;
- int c;
-
- list_for_each_entry(mode, &local->modes_list, list) {
- for (c = 0; c < mode->num_channels; c++) {
- struct ieee80211_channel *chan = &mode->channels[c];
- chan->flag |= IEEE80211_CHAN_W_SCAN;
- }
- }
-}
-
-
-static int ieee80211_ioctl_test_mode(struct net_device *dev, int mode)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- int ret = -EOPNOTSUPP;
-
- if (mode == IEEE80211_TEST_UNMASK_CHANNELS) {
- ieee80211_ioctl_unmask_channels(local);
- ret = 0;
- }
-
- if (local->ops->test_mode)
- ret = local->ops->test_mode(local_to_hw(local), mode);
-
- return ret;
-}
-
-
-static int ieee80211_ioctl_clear_keys(struct net_device *dev)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_key_conf key;
- int i;
- u8 addr[ETH_ALEN];
- struct ieee80211_key_conf *keyconf;
- struct ieee80211_sub_if_data *sdata;
- struct sta_info *sta;
-
- memset(addr, 0xff, ETH_ALEN);
- list_for_each_entry(sdata, &local->sub_if_list, list) {
- for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
- keyconf = NULL;
- if (sdata->keys[i] &&
- !sdata->keys[i]->force_sw_encrypt &&
- local->ops->set_key &&
- (keyconf = ieee80211_key_data2conf(local,
- sdata->keys[i])))
- local->ops->set_key(local_to_hw(local),
- DISABLE_KEY, addr,
- keyconf, 0);
- kfree(keyconf);
- ieee80211_key_free(sdata->keys[i]);
- sdata->keys[i] = NULL;
- }
- sdata->default_key = NULL;
- }
-
- spin_lock_bh(&local->sta_lock);
- list_for_each_entry(sta, &local->sta_list, list) {
- keyconf = NULL;
- if (sta->key && !sta->key->force_sw_encrypt &&
- local->ops->set_key &&
- (keyconf = ieee80211_key_data2conf(local, sta->key)))
- local->ops->set_key(local_to_hw(local), DISABLE_KEY,
- sta->addr, keyconf, sta->aid);
- kfree(keyconf);
- ieee80211_key_free(sta->key);
- sta->key = NULL;
- }
- spin_unlock_bh(&local->sta_lock);
-
- memset(&key, 0, sizeof(key));
- if (local->ops->set_key &&
- local->ops->set_key(local_to_hw(local), REMOVE_ALL_KEYS,
- NULL, &key, 0))
- printk(KERN_DEBUG "%s: failed to remove hwaccel keys\n",
- dev->name);
-
- return 0;
-}
-
-
-static int
-ieee80211_ioctl_force_unicast_rate(struct net_device *dev,
- struct ieee80211_sub_if_data *sdata,
- int rate)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- int i;
-
- if (sdata->type != IEEE80211_IF_TYPE_AP)
- return -ENOENT;
-
- if (rate == 0) {
- sdata->u.ap.force_unicast_rateidx = -1;
- return 0;
- }
-
- for (i = 0; i < local->num_curr_rates; i++) {
- if (local->curr_rates[i].rate == rate) {
- sdata->u.ap.force_unicast_rateidx = i;
- return 0;
- }
- }
- return -EINVAL;
-}
-
-
-static int
-ieee80211_ioctl_max_ratectrl_rate(struct net_device *dev,
- struct ieee80211_sub_if_data *sdata,
- int rate)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- int i;
-
- if (sdata->type != IEEE80211_IF_TYPE_AP)
- return -ENOENT;
-
- if (rate == 0) {
- sdata->u.ap.max_ratectrl_rateidx = -1;
- return 0;
- }
-
- for (i = 0; i < local->num_curr_rates; i++) {
- if (local->curr_rates[i].rate == rate) {
- sdata->u.ap.max_ratectrl_rateidx = i;
- return 0;
- }
- }
- return -EINVAL;
-}
-
-
-static void ieee80211_key_enable_hwaccel(struct ieee80211_local *local,
- struct ieee80211_key *key)
-{
- struct ieee80211_key_conf *keyconf;
- u8 addr[ETH_ALEN];
-
- if (!key || key->alg != ALG_WEP || !key->force_sw_encrypt ||
- (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP))
- return;
-
- memset(addr, 0xff, ETH_ALEN);
- keyconf = ieee80211_key_data2conf(local, key);
- if (keyconf && local->ops->set_key &&
- local->ops->set_key(local_to_hw(local),
- SET_KEY, addr, keyconf, 0) == 0) {
- key->force_sw_encrypt =
- !!(keyconf->flags & IEEE80211_KEY_FORCE_SW_ENCRYPT);
- key->hw_key_idx = keyconf->hw_key_idx;
- }
- kfree(keyconf);
-}
-
-
-static void ieee80211_key_disable_hwaccel(struct ieee80211_local *local,
- struct ieee80211_key *key)
-{
- struct ieee80211_key_conf *keyconf;
- u8 addr[ETH_ALEN];
-
- if (!key || key->alg != ALG_WEP || key->force_sw_encrypt ||
- (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP))
- return;
-
- memset(addr, 0xff, ETH_ALEN);
- keyconf = ieee80211_key_data2conf(local, key);
- if (keyconf && local->ops->set_key)
- local->ops->set_key(local_to_hw(local), DISABLE_KEY,
- addr, keyconf, 0);
- kfree(keyconf);
- key->force_sw_encrypt = 1;
-}
-
-
-static int ieee80211_ioctl_default_wep_only(struct ieee80211_local *local,
- int value)
-{
- int i;
- struct ieee80211_sub_if_data *sdata;
-
- local->default_wep_only = value;
- list_for_each_entry(sdata, &local->sub_if_list, list)
- for (i = 0; i < NUM_DEFAULT_KEYS; i++)
- if (value)
- ieee80211_key_enable_hwaccel(local,
- sdata->keys[i]);
- else
- ieee80211_key_disable_hwaccel(local,
- sdata->keys[i]);
-
- return 0;
-}
-
-
-void ieee80211_update_default_wep_only(struct ieee80211_local *local)
-{
- int i = 0;
- struct ieee80211_sub_if_data *sdata;
-
- spin_lock_bh(&local->sub_if_lock);
- list_for_each_entry(sdata, &local->sub_if_list, list) {
-
- if (sdata->dev == local->mdev)
- continue;
-
- /* If there is an AP interface then depend on userspace to
- set default_wep_only correctly. */
- if (sdata->type == IEEE80211_IF_TYPE_AP) {
- spin_unlock_bh(&local->sub_if_lock);
- return;
- }
-
- i++;
- }
-
- if (i <= 1)
- ieee80211_ioctl_default_wep_only(local, 1);
- else
- ieee80211_ioctl_default_wep_only(local, 0);
-
- spin_unlock_bh(&local->sub_if_lock);
-}
-
-
-static int ieee80211_ioctl_prism2_param(struct net_device *dev,
- struct iw_request_info *info,
- void *wrqu, char *extra)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_sub_if_data *sdata;
- int *i = (int *) extra;
- int param = *i;
- int value = *(i + 1);
- int ret = 0;
-
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- switch (param) {
- case PRISM2_PARAM_HOST_ENCRYPT:
- case PRISM2_PARAM_HOST_DECRYPT:
- /* TODO: implement these; return success now to prevent
- * hostapd from aborting */
- break;
-
- case PRISM2_PARAM_BEACON_INT:
- local->hw.conf.beacon_int = value;
- if (ieee80211_hw_config(local))
- ret = -EINVAL;
- break;
-
- case PRISM2_PARAM_AP_BRIDGE_PACKETS:
- local->bridge_packets = value;
- break;
-
- case PRISM2_PARAM_AP_AUTH_ALGS:
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
- sdata->u.sta.auth_algs = value;
- } else
- ret = -EOPNOTSUPP;
- break;
-
- case PRISM2_PARAM_DTIM_PERIOD:
- if (value < 1)
- ret = -EINVAL;
- else if (sdata->type != IEEE80211_IF_TYPE_AP)
- ret = -ENOENT;
- else
- sdata->u.ap.dtim_period = value;
- break;
-
- case PRISM2_PARAM_IEEE_802_1X:
- sdata->ieee802_1x = value;
- if (local->ops->set_ieee8021x &&
- local->ops->set_ieee8021x(local_to_hw(local), value))
- printk(KERN_DEBUG "%s: failed to set IEEE 802.1X (%d) "
- "for low-level driver\n", dev->name, value);
- break;
-
- case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES:
- local->cts_protect_erp_frames = value;
- break;
-
- case PRISM2_PARAM_DROP_UNENCRYPTED:
- sdata->drop_unencrypted = value;
- break;
-
- case PRISM2_PARAM_PREAMBLE:
- local->short_preamble = value;
- break;
-
- case PRISM2_PARAM_STAT_TIME:
- if (!local->stat_time && value) {
- local->stat_timer.expires = jiffies + HZ * value / 100;
- add_timer(&local->stat_timer);
- } else if (local->stat_time && !value) {
- del_timer_sync(&local->stat_timer);
- }
- local->stat_time = value;
- break;
- case PRISM2_PARAM_SHORT_SLOT_TIME:
- if (value)
- local->hw.conf.flags |= IEEE80211_CONF_SHORT_SLOT_TIME;
- else
- local->hw.conf.flags &= ~IEEE80211_CONF_SHORT_SLOT_TIME;
- if (ieee80211_hw_config(local))
- ret = -EINVAL;
- break;
-
- case PRISM2_PARAM_PRIVACY_INVOKED:
- if (local->ops->set_privacy_invoked)
- ret = local->ops->set_privacy_invoked(
- local_to_hw(local), value);
- break;
-
- case PRISM2_PARAM_TEST_MODE:
- ret = ieee80211_ioctl_test_mode(dev, value);
- break;
-
- case PRISM2_PARAM_NEXT_MODE:
- local->next_mode = value;
- break;
-
- case PRISM2_PARAM_CLEAR_KEYS:
- ret = ieee80211_ioctl_clear_keys(dev);
- break;
-
- case PRISM2_PARAM_RADIO_ENABLED:
- ret = ieee80211_ioctl_set_radio_enabled(dev, value);
- break;
-
- case PRISM2_PARAM_ANTENNA_SEL:
- local->hw.conf.antenna_sel = value;
- if (ieee80211_hw_config(local))
- ret = -EINVAL;
- break;
-
- case PRISM2_PARAM_ANTENNA_MODE:
- local->hw.conf.antenna_mode = value;
- if (ieee80211_hw_config(local))
- ret = -EINVAL;
- break;
-
- case PRISM2_PARAM_BROADCAST_SSID:
- if ((value < 0) || (value > 1))
- ret = -EINVAL;
- else if (value)
- local->hw.conf.flags |= IEEE80211_CONF_SSID_HIDDEN;
- else
- local->hw.conf.flags &= ~IEEE80211_CONF_SSID_HIDDEN;
- break;
-
- case PRISM2_PARAM_STA_ANTENNA_SEL:
- local->sta_antenna_sel = value;
- break;
-
- case PRISM2_PARAM_FORCE_UNICAST_RATE:
- ret = ieee80211_ioctl_force_unicast_rate(dev, sdata, value);
- break;
-
- case PRISM2_PARAM_MAX_RATECTRL_RATE:
- ret = ieee80211_ioctl_max_ratectrl_rate(dev, sdata, value);
- break;
-
- case PRISM2_PARAM_RATE_CTRL_NUM_UP:
- local->rate_ctrl_num_up = value;
- break;
-
- case PRISM2_PARAM_RATE_CTRL_NUM_DOWN:
- local->rate_ctrl_num_down = value;
- break;
-
- case PRISM2_PARAM_TX_POWER_REDUCTION:
- if (value < 0)
- ret = -EINVAL;
- else
- local->hw.conf.tx_power_reduction = value;
- break;
-
- case PRISM2_PARAM_EAPOL:
- sdata->eapol = value;
- break;
-
- case PRISM2_PARAM_KEY_TX_RX_THRESHOLD:
- local->key_tx_rx_threshold = value;
- break;
-
- case PRISM2_PARAM_KEY_INDEX:
- if (value < 0 || value >= NUM_DEFAULT_KEYS)
- ret = -EINVAL;
- else if (!sdata->keys[value])
- ret = -ENOENT;
- else
- sdata->default_key = sdata->keys[value];
- break;
-
- case PRISM2_PARAM_DEFAULT_WEP_ONLY:
- ret = ieee80211_ioctl_default_wep_only(local, value);
- break;
-
- case PRISM2_PARAM_WIFI_WME_NOACK_TEST:
- local->wifi_wme_noack_test = value;
- break;
-
- case PRISM2_PARAM_ALLOW_BROADCAST_ALWAYS:
- local->allow_broadcast_always = value;
- break;
-
- case PRISM2_PARAM_SCAN_FLAGS:
- local->scan_flags = value;
- break;
-
- case PRISM2_PARAM_MIXED_CELL:
- if (sdata->type != IEEE80211_IF_TYPE_STA &&
- sdata->type != IEEE80211_IF_TYPE_IBSS)
- ret = -EINVAL;
- else
- sdata->u.sta.mixed_cell = !!value;
- break;
-
- case PRISM2_PARAM_KEY_MGMT:
- if (sdata->type != IEEE80211_IF_TYPE_STA)
- ret = -EINVAL;
- else
- sdata->u.sta.key_mgmt = value;
- break;
-
- case PRISM2_PARAM_HW_MODES:
- local->enabled_modes = value;
- break;
-
- case PRISM2_PARAM_CREATE_IBSS:
- if (sdata->type != IEEE80211_IF_TYPE_IBSS)
- ret = -EINVAL;
- else
- sdata->u.sta.create_ibss = !!value;
- break;
- case PRISM2_PARAM_WMM_ENABLED:
- if (sdata->type != IEEE80211_IF_TYPE_STA &&
- sdata->type != IEEE80211_IF_TYPE_IBSS)
- ret = -EINVAL;
- else
- sdata->u.sta.wmm_enabled = !!value;
- break;
- case PRISM2_PARAM_RADAR_DETECT:
- local->hw.conf.radar_detect = value;
- break;
- case PRISM2_PARAM_SPECTRUM_MGMT:
- local->hw.conf.spect_mgmt = value;
- break;
- case PRISM2_PARAM_MGMT_IF:
- if (value == 1) {
- if (!local->apdev)
- ret = ieee80211_if_add_mgmt(local);
- } else if (value == 0) {
- if (local->apdev)
- ieee80211_if_del_mgmt(local);
- } else
- ret = -EINVAL;
- break;
- case PRISM2_PARAM_USER_SPACE_MLME:
- local->user_space_mlme = value;
- break;
- default:
- ret = -EOPNOTSUPP;
- break;
- }
-
- return ret;
-}
-
-
-static int ieee80211_ioctl_get_prism2_param(struct net_device *dev,
- struct iw_request_info *info,
- void *wrqu, char *extra)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_sub_if_data *sdata;
- int *param = (int *) extra;
- int ret = 0;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- switch (*param) {
- case PRISM2_PARAM_BEACON_INT:
- *param = local->hw.conf.beacon_int;
- break;
-
- case PRISM2_PARAM_AP_BRIDGE_PACKETS:
- *param = local->bridge_packets;
- break;
-
- case PRISM2_PARAM_AP_AUTH_ALGS:
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
- *param = sdata->u.sta.auth_algs;
- } else
- ret = -EOPNOTSUPP;
- break;
-
- case PRISM2_PARAM_DTIM_PERIOD:
- if (sdata->type != IEEE80211_IF_TYPE_AP)
- ret = -ENOENT;
- else
- *param = sdata->u.ap.dtim_period;
- break;
-
- case PRISM2_PARAM_IEEE_802_1X:
- *param = sdata->ieee802_1x;
- break;
-
- case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES:
- *param = local->cts_protect_erp_frames;
- break;
-
- case PRISM2_PARAM_DROP_UNENCRYPTED:
- *param = sdata->drop_unencrypted;
- break;
-
- case PRISM2_PARAM_PREAMBLE:
- *param = local->short_preamble;
- break;
-
- case PRISM2_PARAM_STAT_TIME:
- *param = local->stat_time;
- break;
- case PRISM2_PARAM_SHORT_SLOT_TIME:
- *param = !!(local->hw.conf.flags & IEEE80211_CONF_SHORT_SLOT_TIME);
- break;
-
- case PRISM2_PARAM_NEXT_MODE:
- *param = local->next_mode;
- break;
-
- case PRISM2_PARAM_ANTENNA_SEL:
- *param = local->hw.conf.antenna_sel;
- break;
-
- case PRISM2_PARAM_ANTENNA_MODE:
- *param = local->hw.conf.antenna_mode;
- break;
-
- case PRISM2_PARAM_BROADCAST_SSID:
- *param = !!(local->hw.conf.flags & IEEE80211_CONF_SSID_HIDDEN);
- break;
-
- case PRISM2_PARAM_STA_ANTENNA_SEL:
- *param = local->sta_antenna_sel;
- break;
-
- case PRISM2_PARAM_RATE_CTRL_NUM_UP:
- *param = local->rate_ctrl_num_up;
- break;
-
- case PRISM2_PARAM_RATE_CTRL_NUM_DOWN:
- *param = local->rate_ctrl_num_down;
- break;
-
- case PRISM2_PARAM_TX_POWER_REDUCTION:
- *param = local->hw.conf.tx_power_reduction;
- break;
-
- case PRISM2_PARAM_EAPOL:
- *param = sdata->eapol;
- break;
-
- case PRISM2_PARAM_KEY_TX_RX_THRESHOLD:
- *param = local->key_tx_rx_threshold;
- break;
-
- case PRISM2_PARAM_KEY_INDEX:
- if (!sdata->default_key)
- ret = -ENOENT;
- else if (sdata->default_key == sdata->keys[0])
- *param = 0;
- else if (sdata->default_key == sdata->keys[1])
- *param = 1;
- else if (sdata->default_key == sdata->keys[2])
- *param = 2;
- else if (sdata->default_key == sdata->keys[3])
- *param = 3;
- else
- ret = -ENOENT;
- break;
-
- case PRISM2_PARAM_DEFAULT_WEP_ONLY:
- *param = local->default_wep_only;
- break;
-
- case PRISM2_PARAM_WIFI_WME_NOACK_TEST:
- *param = local->wifi_wme_noack_test;
- break;
-
- case PRISM2_PARAM_ALLOW_BROADCAST_ALWAYS:
- *param = local->allow_broadcast_always;
- break;
-
- case PRISM2_PARAM_SCAN_FLAGS:
- *param = local->scan_flags;
- break;
-
- case PRISM2_PARAM_HW_MODES:
- *param = local->enabled_modes;
- break;
-
- case PRISM2_PARAM_CREATE_IBSS:
- if (sdata->type != IEEE80211_IF_TYPE_IBSS)
- ret = -EINVAL;
- else
- *param = !!sdata->u.sta.create_ibss;
- break;
-
- case PRISM2_PARAM_MIXED_CELL:
- if (sdata->type != IEEE80211_IF_TYPE_STA &&
- sdata->type != IEEE80211_IF_TYPE_IBSS)
- ret = -EINVAL;
- else
- *param = !!sdata->u.sta.mixed_cell;
- break;
-
- case PRISM2_PARAM_KEY_MGMT:
- if (sdata->type != IEEE80211_IF_TYPE_STA)
- ret = -EINVAL;
- else
- *param = sdata->u.sta.key_mgmt;
- break;
- case PRISM2_PARAM_WMM_ENABLED:
- if (sdata->type != IEEE80211_IF_TYPE_STA &&
- sdata->type != IEEE80211_IF_TYPE_IBSS)
- ret = -EINVAL;
- else
- *param = !!sdata->u.sta.wmm_enabled;
- break;
- case PRISM2_PARAM_MGMT_IF:
- if (local->apdev)
- *param = local->apdev->ifindex;
- else
- ret = -ENOENT;
- break;
- case PRISM2_PARAM_USER_SPACE_MLME:
- *param = local->user_space_mlme;
- break;
-
- default:
- ret = -EOPNOTSUPP;
- break;
- }
-
- return ret;
-}
-
-
-static int ieee80211_ioctl_test_param(struct net_device *dev,
- struct iw_request_info *info,
- void *wrqu, char *extra)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- int *i = (int *) extra;
- int param = *i;
- int value = *(i + 1);
-
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
-
- if (local->ops->test_param)
- return local->ops->test_param(local_to_hw(local),
- param, value);
-
- return -EOPNOTSUPP;
-}
-
-
-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->type != IEEE80211_IF_TYPE_STA &&
- sdata->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 };
-
- 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--;
-
- if (erq->flags & IW_ENCODE_DISABLED)
- alg = ALG_NONE;
- else if (erq->length == 0) {
- /* No key data - just set the default TX key index */
- if (sdata->default_key != sdata->keys[idx]) {
- if (sdata->default_key)
- ieee80211_key_sysfs_remove_default(sdata);
- sdata->default_key = sdata->keys[idx];
- if (sdata->default_key)
- ieee80211_key_sysfs_add_default(sdata);
- }
- return 0;
- }
-
- return ieee80211_set_encryption(
- dev, bcaddr,
- idx, alg,
- !sdata->default_key,
- NULL, 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]->key,
- min((int)erq->length, sdata->keys[idx]->keylen));
- erq->length = sdata->keys[idx]->keylen;
- erq->flags |= IW_ENCODE_ENABLED;
-
- return 0;
-}
-
-
-static int ieee80211_ioctl_siwgenie(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_point *data, char *extra)
-{
- return ieee80211_set_gen_ie(dev, extra, data->length);
-}
-
-
-static int ieee80211_ioctl_siwauth(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_param *data, char *extra)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- 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:
- break;
- case IW_AUTH_KEY_MGMT:
- if (sdata->type != IEEE80211_IF_TYPE_STA)
- ret = -EINVAL;
- else {
- /*
- * TODO: sdata->u.sta.key_mgmt does not match with WE18
- * value completely; could consider modifying this to
- * be closer to WE18. For now, this value is not really
- * used for anything else than Privacy matching, so the
- * current code here should be more or less OK.
- */
- if (data->value & IW_AUTH_KEY_MGMT_802_1X) {
- sdata->u.sta.key_mgmt =
- IEEE80211_KEY_MGMT_WPA_EAP;
- } else if (data->value & IW_AUTH_KEY_MGMT_PSK) {
- sdata->u.sta.key_mgmt =
- IEEE80211_KEY_MGMT_WPA_PSK;
- } else {
- sdata->u.sta.key_mgmt =
- IEEE80211_KEY_MGMT_NONE;
- }
- }
- break;
- case IW_AUTH_80211_AUTH_ALG:
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS)
- sdata->u.sta.auth_algs = data->value;
- else
- ret = -EOPNOTSUPP;
- break;
- case IW_AUTH_PRIVACY_INVOKED:
- if (local->ops->set_privacy_invoked)
- ret = local->ops->set_privacy_invoked(
- local_to_hw(local), data->value);
- 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 *net_dev)
-{
- struct ieee80211_local *local = net_dev->ieee80211_ptr;
- struct iw_statistics * wstats = &local->wstats;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(net_dev);
- struct sta_info *sta;
- static int tmp_level = 0;
- static int tmp_qual = 0;
-
- 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 {
- if (!tmp_level) { /* get initial values */
- tmp_level = sta->last_signal;
- tmp_qual = sta->last_rssi;
- } else { /* smooth results */
- tmp_level = (15 * tmp_level + sta->last_signal)/16;
- tmp_qual = (15 * tmp_qual + sta->last_rssi)/16;
- }
- wstats->qual.level = tmp_level;
- wstats->qual.qual = 100*tmp_qual/local->hw.maxssi;
- wstats->qual.noise = sta->last_noise;
- wstats->qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
- 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->type == IEEE80211_IF_TYPE_STA ||
- sdata->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 alg, idx, i;
-
- switch (ext->alg) {
- case IW_ENCODE_ALG_NONE:
- alg = ALG_NONE;
- 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)
- alg = ALG_NONE;
-
- 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,
- ext->ext_flags &
- IW_ENCODE_EXT_SET_TX_KEY,
- NULL, ext->key, ext->key_len);
-}
-
-
-static const struct iw_priv_args ieee80211_ioctl_priv[] = {
- { PRISM2_IOCTL_PRISM2_PARAM,
- IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "param" },
- { PRISM2_IOCTL_GET_PRISM2_PARAM,
- IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
- IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_param" },
- { PRISM2_IOCTL_TEST_PARAM,
- IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "test_param" },
-};
-
-
-int ieee80211_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
-{
- struct iwreq *wrq = (struct iwreq *) rq;
- int ret = 0;
-
- switch (cmd) {
- /* Private ioctls (iwpriv) that have not yet been converted
- * into new wireless extensions API */
- case PRISM2_IOCTL_TEST_PARAM:
- ret = ieee80211_ioctl_test_param(dev, NULL, &wrq->u,
- (char *) &wrq->u);
- break;
- case PRISM2_IOCTL_HOSTAPD:
- if (!capable(CAP_NET_ADMIN)) ret = -EPERM;
- else ret = ieee80211_ioctl_priv_hostapd(dev, &wrq->u.data);
- break;
- default:
- ret = -EOPNOTSUPP;
- break;
- }
-
- return ret;
-}
-
-
-/* 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_set_spy, /* SIOCSIWSPY */
- iw_handler_get_spy, /* SIOCGIWSPY */
- iw_handler_set_thrspy, /* SIOCSIWTHRSPY */
- iw_handler_get_thrspy, /* 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) NULL, /* SIOCSIWRATE */
- (iw_handler) NULL, /* 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) NULL, /* SIOCSIWTXPOW */
- (iw_handler) NULL, /* 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 -- */
-};
-
-static const iw_handler ieee80211_private_handler[] =
-{ /* SIOCIWFIRSTPRIV + */
- (iw_handler) ieee80211_ioctl_prism2_param, /* 0 */
- (iw_handler) ieee80211_ioctl_get_prism2_param, /* 1 */
-};
-
-const struct iw_handler_def ieee80211_iw_handler_def =
-{
- .num_standard = sizeof(ieee80211_handler) / sizeof(iw_handler),
- .num_private = sizeof(ieee80211_private_handler) /
- sizeof(iw_handler),
- .num_private_args = sizeof(ieee80211_ioctl_priv) /
- sizeof(struct iw_priv_args),
- .standard = (iw_handler *) ieee80211_handler,
- .private = (iw_handler *) ieee80211_private_handler,
- .private_args = (struct iw_priv_args *) ieee80211_ioctl_priv,
- .get_wireless_stats = ieee80211_get_wireless_stats,
-};
-
-/* Wireless handlers for master interface */
-
-static const iw_handler ieee80211_master_handler[] =
-{
- [SIOCGIWNAME - SIOCIWFIRST] = (iw_handler) ieee80211_ioctl_giwname,
- [SIOCSIWFREQ - SIOCIWFIRST] = (iw_handler) ieee80211_ioctl_siwfreq,
- [SIOCGIWFREQ - SIOCIWFIRST] = (iw_handler) ieee80211_ioctl_giwfreq,
- [SIOCGIWRANGE - SIOCIWFIRST] = (iw_handler) ieee80211_ioctl_giwrange,
- [SIOCSIWRTS - SIOCIWFIRST] = (iw_handler) ieee80211_ioctl_siwrts,
- [SIOCGIWRTS - SIOCIWFIRST] = (iw_handler) ieee80211_ioctl_giwrts,
- [SIOCSIWFRAG - SIOCIWFIRST] = (iw_handler) ieee80211_ioctl_siwfrag,
- [SIOCGIWFRAG - SIOCIWFIRST] = (iw_handler) ieee80211_ioctl_giwfrag,
- [SIOCSIWRETRY - SIOCIWFIRST] = (iw_handler) ieee80211_ioctl_siwretry,
- [SIOCGIWRETRY - SIOCIWFIRST] = (iw_handler) ieee80211_ioctl_giwretry,
-};
-
-const struct iw_handler_def ieee80211_iw_master_handler_def =
-{
- .num_standard = sizeof(ieee80211_master_handler) / sizeof(iw_handler),
- .standard = ieee80211_master_handler,
-};
+++ /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/kobject.h>
-#include <linux/crypto.h>
-#include <net/d80211.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_key {
- struct kobject kobj;
-
- int hw_key_idx; /* filled and used by low-level driver */
- ieee80211_key_alg alg;
- 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;
- int tx_rx_count; /* number of times this key has been used */
- int keylen;
-
- /* if the low level driver can provide hardware acceleration it should
- * clear this flag */
- unsigned int force_sw_encrypt:1;
- int keyidx:8; /* WEP key index */
- unsigned int default_tx_key:1; /* This key is the new default TX key
- * (used only for broadcast keys). */
-
- u8 key[0];
-};
-
-#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_init(struct ieee80211_local *local)
-{
- local->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
- if (!local->rx_led)
- return;
- snprintf(local->rx_led_name, sizeof(local->rx_led_name),
- "wiphy%drx", local->hw.index);
- 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)
- return;
- snprintf(local->tx_led_name, sizeof(local->tx_led_name),
- "wiphy%dtx", local->hw.index);
- local->tx_led->name = local->tx_led_name;
- if (led_trigger_register(local->tx_led)) {
- kfree(local->tx_led);
- local->tx_led = NULL;
- }
-}
-
-void ieee80211_led_exit(struct ieee80211_local *local)
-{
- 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_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_D80211_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_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_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 "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);
-
-int ieee80211_rate_control_register(struct rate_control_ops *ops)
-{
- struct rate_control_alg *alg;
-
- alg = kmalloc(sizeof(*alg), GFP_KERNEL);
- if (alg == NULL) {
- return -ENOMEM;
- }
- memset(alg, 0, sizeof(*alg));
- alg->ops = ops;
-
- mutex_lock(&rate_ctrl_mutex);
- 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);
- break;
- }
- }
- mutex_unlock(&rate_ctrl_mutex);
- kfree(alg);
-}
-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;
-
- mutex_lock(&rate_ctrl_mutex);
- list_for_each_entry(alg, &rate_ctrl_algs, list) {
- if (!name || !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. If `name' is NULL, get the first
- * available algorithm. */
-static struct rate_control_ops *
-ieee80211_rate_control_ops_get(const char *name)
-{
- struct rate_control_ops *ops;
-
- ops = ieee80211_try_rate_control_ops_get(name);
- if (!ops) {
- request_module("rc80211_%s", name ? name : "default");
- ops = ieee80211_try_rate_control_ops_get(name);
- }
- 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);
-}
-
-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);
-}
+++ /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/d80211.h>
-#include "ieee80211_i.h"
-#include "sta_info.h"
-
-#define RATE_CONTROL_NUM_DOWN 20
-#define RATE_CONTROL_NUM_UP 15
-
-
-struct rate_control_extra {
- /* values from rate_control_get_rate() to the caller: */
- struct ieee80211_rate *probe; /* probe with this rate, or NULL for no
- * probing */
- int startidx, endidx, rateidx;
- struct ieee80211_rate *nonerp;
- int nonerp_idx;
-
- /* parameters from the caller to rate_control_get_rate(): */
- int mgmt_data; /* this is data frame that is used for management
- * (e.g., IEEE 802.1X EAPOL) */
- u16 ethertype;
-};
-
-
-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);
- struct ieee80211_rate *(*get_rate)(void *priv, struct net_device *dev,
- struct sk_buff *skb,
- struct rate_control_extra *extra);
- 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);
- int (*add_sta_attrs)(void *priv, void *priv_sta,
- struct kobject *kobj);
- void (*remove_sta_attrs)(void *priv, void *priv_sta,
- struct kobject *kobj);
-};
-
-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);
-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 ieee80211_local *local,
- struct net_device *dev,
- struct sk_buff *skb,
- struct ieee80211_tx_status *status)
-{
- struct rate_control_ref *ref = local->rate_ctrl;
- ref->ops->tx_status(ref->priv, dev, skb, status);
-}
-
-
-static inline struct ieee80211_rate *
-rate_control_get_rate(struct ieee80211_local *local, struct net_device *dev,
- struct sk_buff *skb, struct rate_control_extra *extra)
-{
- struct rate_control_ref *ref = local->rate_ctrl;
- return ref->ops->get_rate(ref->priv, dev, skb, extra);
-}
-
-
-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 int rate_control_add_attrs(struct rate_control_ref *ref,
- struct kobject *kobj)
-{
- if (ref->ops->add_attrs)
- return ref->ops->add_attrs(ref->priv, kobj);
- return 0;
-}
-
-static inline void rate_control_remove_attrs(struct rate_control_ref *ref,
- struct kobject *kobj)
-{
- if (ref->ops->remove_attrs)
- ref->ops->remove_attrs(ref->priv, kobj);
-}
-
-static inline int rate_control_add_sta_attrs(struct sta_info *sta,
- struct kobject *kobj)
-{
- struct rate_control_ref *ref = sta->rate_ctrl;
- if (ref->ops->add_sta_attrs)
- return ref->ops->add_sta_attrs(ref->priv, sta->rate_ctrl_priv,
- kobj);
- return 0;
-}
-
-static inline void rate_control_remove_sta_attrs(struct sta_info *sta,
- struct kobject *kobj)
-{
- struct rate_control_ref *ref = sta->rate_ctrl;
- if (ref->ops->remove_sta_attrs)
- ref->ops->remove_sta_attrs(ref->priv, sta->rate_ctrl_priv,
- kobj);
-}
-
-#endif /* IEEE80211_RATE_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/module.h>
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-
-#include <net/d80211.h>
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-
-
-/* Maximum number of seconds to wait for the traffic load to get below
- * threshold before forcing a passive scan. */
-#define MAX_SCAN_WAIT 60
-/* Threshold (pkts/sec TX or RX) for delaying passive scan */
-#define SCAN_TXRX_THRESHOLD 75
-
-static void get_channel_params(struct ieee80211_local *local, int channel,
- struct ieee80211_hw_mode **mode,
- struct ieee80211_channel **chan)
-{
- struct ieee80211_hw_mode *m;
-
- list_for_each_entry(m, &local->modes_list, list) {
- *mode = m;
- if (m->mode == local->hw.conf.phymode)
- break;
- }
- local->scan.mode = m;
- local->scan.chan_idx = 0;
- do {
- *chan = &m->channels[local->scan.chan_idx];
- if ((*chan)->chan == channel)
- return;
- local->scan.chan_idx++;
- } while (local->scan.chan_idx < m->num_channels);
- *chan = NULL;
-}
-
-
-static void next_chan_same_mode(struct ieee80211_local *local,
- struct ieee80211_hw_mode **mode,
- struct ieee80211_channel **chan)
-{
- struct ieee80211_hw_mode *m;
- int prev;
-
- list_for_each_entry(m, &local->modes_list, list) {
- *mode = m;
- if (m->mode == local->hw.conf.phymode)
- break;
- }
- local->scan.mode = m;
-
- /* Select next channel - scan only channels marked with W_SCAN flag */
- prev = local->scan.chan_idx;
- do {
- local->scan.chan_idx++;
- if (local->scan.chan_idx >= m->num_channels)
- local->scan.chan_idx = 0;
- *chan = &m->channels[local->scan.chan_idx];
- if ((*chan)->flag & IEEE80211_CHAN_W_SCAN)
- break;
- } while (local->scan.chan_idx != prev);
-}
-
-
-static void next_chan_all_modes(struct ieee80211_local *local,
- struct ieee80211_hw_mode **mode,
- struct ieee80211_channel **chan)
-{
- struct ieee80211_hw_mode *prev_m;
- int prev;
-
- /* Select next channel - scan only channels marked with W_SCAN flag */
- prev = local->scan.chan_idx;
- prev_m = local->scan.mode;
- do {
- *mode = local->scan.mode;
- local->scan.chan_idx++;
- if (local->scan.chan_idx >= (*mode)->num_channels) {
- struct list_head *next;
-
- local->scan.chan_idx = 0;
- next = (*mode)->list.next;
- if (next == &local->modes_list)
- next = next->next;
- *mode = list_entry(next,
- struct ieee80211_hw_mode,
- list);
- local->scan.mode = *mode;
- }
- *chan = &(*mode)->channels[local->scan.chan_idx];
- if ((*chan)->flag & IEEE80211_CHAN_W_SCAN)
- break;
- } while (local->scan.chan_idx != prev ||
- local->scan.mode != prev_m);
-}
-
-
-static void ieee80211_scan_start(struct ieee80211_local *local,
- struct ieee80211_scan_conf *conf)
-{
- struct ieee80211_hw_mode *old_mode = local->scan.mode;
- int old_chan_idx = local->scan.chan_idx;
- struct ieee80211_hw_mode *mode = NULL;
- struct ieee80211_channel *chan = NULL;
- int ret;
-
- if (!local->ops->passive_scan) {
- printk(KERN_DEBUG "%s: Scan handler called, yet the hardware "
- "does not support passive scanning. Disabled.\n",
- local->mdev->name);
- return;
- }
-
- if ((local->scan.tries < MAX_SCAN_WAIT &&
- local->scan.txrx_count > SCAN_TXRX_THRESHOLD)) {
- local->scan.tries++;
- /* Count TX/RX packets during one second interval and allow
- * scan to start only if the number of packets is below the
- * threshold. */
- local->scan.txrx_count = 0;
- local->scan.timer.expires = jiffies + HZ;
- add_timer(&local->scan.timer);
- return;
- }
-
- if (!local->scan.skb) {
- printk(KERN_DEBUG "%s: Scan start called even though scan.skb "
- "is not set\n", local->mdev->name);
- }
-
- if (local->scan.our_mode_only) {
- if (local->scan.channel > 0) {
- get_channel_params(local, local->scan.channel, &mode,
- &chan);
- } else
- next_chan_same_mode(local, &mode, &chan);
- }
- else
- next_chan_all_modes(local, &mode, &chan);
-
- conf->scan_channel = chan->chan;
- conf->scan_freq = chan->freq;
- conf->scan_channel_val = chan->val;
- conf->scan_phymode = mode->mode;
- conf->scan_power_level = chan->power_level;
- conf->scan_antenna_max = chan->antenna_max;
- conf->scan_time = 2 * local->hw.channel_change_time +
- local->scan.time; /* 10ms scan time+hardware changes */
- conf->skb = local->scan.skb ?
- skb_clone(local->scan.skb, GFP_ATOMIC) : NULL;
- conf->tx_control = &local->scan.tx_control;
-#if 0
- printk(KERN_DEBUG "%s: Doing scan on mode: %d freq: %d chan: %d "
- "for %d ms\n",
- local->mdev->name, conf->scan_phymode, conf->scan_freq,
- conf->scan_channel, conf->scan_time);
-#endif
- local->scan.rx_packets = 0;
- local->scan.rx_beacon = 0;
- local->scan.freq = chan->freq;
- local->scan.in_scan = 1;
-
- ieee80211_netif_oper(local_to_hw(local), NETIF_STOP);
-
- ret = local->ops->passive_scan(local_to_hw(local),
- IEEE80211_SCAN_START, conf);
-
- if (ret == 0) {
- long usec = local->hw.channel_change_time +
- local->scan.time;
- usec += 1000000L / HZ - 1;
- usec /= 1000000L / HZ;
- local->scan.timer.expires = jiffies + usec;
- } else {
- local->scan.in_scan = 0;
- if (conf->skb)
- dev_kfree_skb(conf->skb);
- ieee80211_netif_oper(local_to_hw(local), NETIF_WAKE);
- if (ret == -EAGAIN) {
- local->scan.timer.expires = jiffies +
- (local->scan.interval * HZ / 100);
- local->scan.mode = old_mode;
- local->scan.chan_idx = old_chan_idx;
- } else {
- printk(KERN_DEBUG "%s: Got unknown error from "
- "passive_scan %d\n", local->mdev->name, ret);
- local->scan.timer.expires = jiffies +
- (local->scan.interval * HZ);
- }
- local->scan.in_scan = 0;
- }
-
- add_timer(&local->scan.timer);
-}
-
-
-static void ieee80211_scan_stop(struct ieee80211_local *local,
- struct ieee80211_scan_conf *conf)
-{
- struct ieee80211_hw_mode *mode;
- struct ieee80211_channel *chan;
- int wait;
-
- if (!local->ops->passive_scan)
- return;
-
- mode = local->scan.mode;
-
- if (local->scan.chan_idx >= mode->num_channels)
- local->scan.chan_idx = 0;
-
- chan = &mode->channels[local->scan.chan_idx];
-
- local->ops->passive_scan(local_to_hw(local), IEEE80211_SCAN_END,
- conf);
-
-#ifdef CONFIG_D80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: Did scan on mode: %d freq: %d chan: %d "
- "GOT: %d Beacon: %d (%d)\n",
- local->mdev->name,
- mode->mode, chan->freq, chan->chan,
- local->scan.rx_packets, local->scan.rx_beacon,
- local->scan.tries);
-#endif /* CONFIG_D80211_VERBOSE_DEBUG */
- local->scan.num_scans++;
-
- local->scan.in_scan = 0;
- ieee80211_netif_oper(local_to_hw(local), NETIF_WAKE);
-
- local->scan.tries = 0;
- /* Use random interval of scan.interval .. 2 * scan.interval */
- wait = (local->scan.interval * HZ * ((net_random() & 127) + 128)) /
- 128;
- local->scan.timer.expires = jiffies + wait;
-
- add_timer(&local->scan.timer);
-}
-
-
-static void ieee80211_scan_handler(unsigned long ullocal)
-{
- struct ieee80211_local *local = (struct ieee80211_local *) ullocal;
- struct ieee80211_scan_conf conf;
-
- if (local->scan.interval == 0 && !local->scan.in_scan) {
- /* Passive scanning is disabled - keep the timer always
- * running to make code cleaner. */
- local->scan.timer.expires = jiffies + 10 * HZ;
- add_timer(&local->scan.timer);
- return;
- }
-
- memset(&conf, 0, sizeof(struct ieee80211_scan_conf));
- conf.running_freq = local->hw.conf.freq;
- conf.running_channel = local->hw.conf.channel;
- conf.running_phymode = local->hw.conf.phymode;
- conf.running_channel_val = local->hw.conf.channel_val;
- conf.running_power_level = local->hw.conf.power_level;
- conf.running_antenna_max = local->hw.conf.antenna_max;
-
- if (local->scan.in_scan == 0)
- ieee80211_scan_start(local, &conf);
- else
- ieee80211_scan_stop(local, &conf);
-}
-
-
-void ieee80211_init_scan(struct ieee80211_local *local)
-{
- struct ieee80211_hdr hdr;
- u16 fc;
- int len = 10;
- struct rate_control_extra extra;
-
- /* Only initialize passive scanning if the hardware supports it */
- if (!local->ops->passive_scan) {
- local->scan.skb = NULL;
- memset(&local->scan.tx_control, 0,
- sizeof(local->scan.tx_control));
- printk(KERN_DEBUG "%s: Does not support passive scan, "
- "disabled\n", local->mdev->name);
- return;
- }
-
- local->scan.interval = 0;
- local->scan.our_mode_only = 1;
- local->scan.time = 10000;
- local->scan.timer.function = ieee80211_scan_handler;
- local->scan.timer.data = (unsigned long) local;
- local->scan.timer.expires = jiffies + local->scan.interval * HZ;
- add_timer(&local->scan.timer);
-
- /* Create a CTS from for broadcasting before
- * the low level changes channels */
- local->scan.skb = alloc_skb(len, GFP_KERNEL);
- if (!local->scan.skb) {
- printk(KERN_WARNING "%s: Failed to allocate CTS packet for "
- "passive scan\n", local->mdev->name);
- return;
- }
-
- fc = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS;
- hdr.frame_control = cpu_to_le16(fc);
- hdr.duration_id =
- cpu_to_le16(2 * local->hw.channel_change_time +
- local->scan.time);
- memcpy(hdr.addr1, local->mdev->dev_addr, ETH_ALEN); /* DA */
- hdr.seq_ctrl = 0;
-
- memcpy(skb_put(local->scan.skb, len), &hdr, len);
-
- memset(&local->scan.tx_control, 0, sizeof(local->scan.tx_control));
- local->scan.tx_control.key_idx = HW_KEY_IDX_INVALID;
- local->scan.tx_control.flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
- memset(&extra, 0, sizeof(extra));
- extra.endidx = local->num_curr_rates;
- local->scan.tx_control.tx_rate =
- rate_control_get_rate(local, local->mdev,
- local->scan.skb, &extra)->val;
- local->scan.tx_control.flags |= IEEE80211_TXCTL_NO_ACK;
-}
-
-
-void ieee80211_stop_scan(struct ieee80211_local *local)
-{
- if (local->ops->passive_scan) {
- del_timer_sync(&local->scan.timer);
- dev_kfree_skb(local->scan.skb);
- local->scan.skb = NULL;
- }
-}
+++ /dev/null
-/*
- * BSS client mode implementation
- * Copyright 2003, Jouni Malinen <jkmaline@cc.hut.fi>
- * 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.
- */
-
-/* TODO:
- * BSS table: use <BSSID,SSID> as the key to support multi-SSID APs
- * order BSS list by RSSI(?) ("quality of AP")
- * scan result table filtering (by capability (privacy, IBSS/BSS, WPA/RSN IE,
- * SSID)
- */
-#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 <net/iw_handler.h>
-#include <asm/types.h>
-#include <asm/delay.h>
-
-#include <net/d80211.h>
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-#include "hostapd_ioctl.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)
-
-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);
-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);
-
-
-/* Parsed Information Elements */
-struct ieee802_11_elems {
- u8 *ssid;
- u8 ssid_len;
- u8 *supp_rates;
- u8 supp_rates_len;
- u8 *fh_params;
- u8 fh_params_len;
- u8 *ds_params;
- u8 ds_params_len;
- u8 *cf_params;
- u8 cf_params_len;
- u8 *tim;
- u8 tim_len;
- u8 *ibss_params;
- u8 ibss_params_len;
- u8 *challenge;
- u8 challenge_len;
- u8 *wpa;
- u8 wpa_len;
- u8 *rsn;
- u8 rsn_len;
- u8 *erp_info;
- u8 erp_info_len;
- u8 *ext_supp_rates;
- u8 ext_supp_rates_len;
- u8 *wmm_info;
- u8 wmm_info_len;
- u8 *wmm_param;
- u8 wmm_param_len;
-};
-
-typedef enum { ParseOK = 0, ParseUnknown = 1, ParseFailed = -1 } ParseRes;
-
-
-static ParseRes ieee802_11_parse_elems(u8 *start, size_t len,
- struct ieee802_11_elems *elems)
-{
- size_t left = len;
- u8 *pos = start;
- int unknown = 0;
-
- memset(elems, 0, sizeof(*elems));
-
- while (left >= 2) {
- u8 id, elen;
-
- id = *pos++;
- elen = *pos++;
- left -= 2;
-
- if (elen > left) {
-#if 0
- if (net_ratelimit())
- printk(KERN_DEBUG "IEEE 802.11 element parse "
- "failed (id=%d elen=%d left=%d)\n",
- id, elen, left);
-#endif
- return ParseFailed;
- }
-
- 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;
- default:
-#if 0
- printk(KERN_DEBUG "IEEE 802.11 element parse ignored "
- "unknown element (id=%d elen=%d)\n",
- id, elen);
-#endif
- unknown++;
- break;
- }
-
- left -= elen;
- pos += elen;
- }
-
- /* Do not trigger error if left == 1 as Apple Airport base stations
- * send AssocResps that are one spurious byte too long. */
-
- return unknown ? ParseUnknown : ParseOK;
-}
-
-
-
-
-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 = 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(1) | BIT(2);
- }
- 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(0) | BIT(3);
- }
- 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 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_ATOMIC);
- 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, int assoc)
-{
- union iwreq_data wrqu;
-
- if (ifsta->associated == assoc)
- return;
-
- ifsta->associated = assoc;
-
- if (assoc) {
- struct ieee80211_sub_if_data *sdata;
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type != IEEE80211_IF_TYPE_STA)
- return;
- ifsta->prev_bssid_set = 1;
- 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 {
- 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;
-}
-
-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->mac.raw = skb->nh.raw = skb->h.raw = skb->data;
-
- 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;
- pkt_data->mgmt_iface = (sdata->type == IEEE80211_IF_TYPE_MGMT);
- pkt_data->do_not_encrypt = !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 sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
-
- skb = dev_alloc_skb(sizeof(*mgmt) + 6 + extra_len);
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for auth "
- "frame\n", dev->name);
- return;
- }
-
- 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)
-{
- ifsta->auth_tries++;
- if (ifsta->auth_tries > IEEE80211_AUTH_MAX_TRIES) {
- printk(KERN_DEBUG "%s: authentication with AP " MAC_FMT
- " timed out\n",
- dev->name, MAC_ARG(ifsta->bssid));
- return;
- }
-
- ifsta->state = IEEE80211_AUTHENTICATE;
- printk(KERN_DEBUG "%s: authenticate with AP " MAC_FMT "\n",
- dev->name, MAC_ARG(ifsta->bssid));
-
- ieee80211_send_auth(dev, ifsta, 1, NULL, 0, 0);
-
- schedule_delayed_work(&ifsta->work, IEEE80211_AUTH_TIMEOUT);
-}
-
-
-static void ieee80211_send_assoc(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = 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;
-
- skb = dev_alloc_skb(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;
- }
-
- capab = ifsta->capab;
- if (local->hw.conf.phymode == MODE_IEEE80211G) {
- capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME |
- WLAN_CAPABILITY_SHORT_PREAMBLE;
- }
- bss = ieee80211_rx_bss_get(dev, ifsta->bssid);
- 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->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 = local->num_curr_rates;
- 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 = local->curr_rates[i].rate;
- if (local->hw.conf.phymode == MODE_ATHEROS_TURBO)
- rate /= 2;
- *pos++ = (u8) (rate / 5);
- }
-
- if (local->num_curr_rates > len) {
- pos = skb_put(skb, local->num_curr_rates - len + 2);
- *pos++ = WLAN_EID_EXT_SUPP_RATES;
- *pos++ = local->num_curr_rates - len;
- for (i = len; i < local->num_curr_rates; i++) {
- int rate = local->curr_rates[i].rate;
- if (local->hw.conf.phymode == MODE_ATHEROS_TURBO)
- rate /= 2;
- *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->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;
- }
-
- kfree(ifsta->assocreq_ies);
- ifsta->assocreq_ies_len = (skb->data + skb->len) - ies;
- ifsta->assocreq_ies = kmalloc(ifsta->assocreq_ies_len, GFP_ATOMIC);
- 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 sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
-
- skb = dev_alloc_skb(sizeof(*mgmt));
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for deauth "
- "frame\n", dev->name);
- return;
- }
-
- 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 sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
-
- skb = dev_alloc_skb(sizeof(*mgmt));
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for disassoc "
- "frame\n", dev->name);
- return;
- }
-
- 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_sta_bss *bss;
- int res = 0;
-
- if (!ifsta || ifsta->mixed_cell ||
- ifsta->key_mgmt != IEEE80211_KEY_MGMT_NONE)
- return 0;
-
- bss = ieee80211_rx_bss_get(dev, ifsta->bssid);
- if (!bss)
- return 0;
-
- if (ieee80211_sta_wep_configured(dev) !=
- !!(bss->capability & WLAN_CAPABILITY_PRIVACY))
- res = 1;
-
- ieee80211_rx_bss_put(dev, bss);
-
- return res;
-}
-
-
-static void ieee80211_associate(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- ifsta->assoc_tries++;
- if (ifsta->assoc_tries > IEEE80211_ASSOC_MAX_TRIES) {
- printk(KERN_DEBUG "%s: association with AP " MAC_FMT
- " timed out\n",
- dev->name, MAC_ARG(ifsta->bssid));
- return;
- }
-
- ifsta->state = IEEE80211_ASSOCIATE;
- printk(KERN_DEBUG "%s: associate with AP " MAC_FMT "\n",
- dev->name, MAC_ARG(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);
- return;
- }
-
- ieee80211_send_assoc(dev, ifsta);
-
- schedule_delayed_work(&ifsta->work, IEEE80211_ASSOC_TIMEOUT);
-}
-
-
-static void ieee80211_associated(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct sta_info *sta;
- int disassoc;
-
- /* 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 " MAC_FMT "\n",
- dev->name, MAC_ARG(ifsta->bssid));
- disassoc = 1;
- } else {
- disassoc = 0;
- if (time_after(jiffies,
- sta->last_rx + IEEE80211_MONITORING_INTERVAL)) {
- if (ifsta->probereq_poll) {
- printk(KERN_DEBUG "%s: No ProbeResp from "
- "current AP " MAC_FMT " - assume out of "
- "range\n",
- dev->name, MAC_ARG(ifsta->bssid));
- disassoc = 1;
- sta_info_free(sta, 0);
- ifsta->probereq_poll = 0;
- } else {
- ieee80211_send_probe_req(dev, ifsta->bssid,
- local->scan_ssid,
- local->scan_ssid_len);
- ifsta->probereq_poll = 1;
- }
- } else {
- ifsta->probereq_poll = 0;
- 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) {
- union iwreq_data wrqu;
- memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
- wrqu.ap_addr.sa_family = ARPHRD_ETHER;
- wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
- schedule_delayed_work(&ifsta->work,
- IEEE80211_MONITORING_INTERVAL + 30 * HZ);
- } else {
- schedule_delayed_work(&ifsta->work,
- 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 = dev->ieee80211_ptr;
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
- u8 *pos, *supp_rates, *esupp_rates = NULL;
- int i;
-
- skb = dev_alloc_skb(sizeof(*mgmt) + 200);
- if (!skb) {
- printk(KERN_DEBUG "%s: failed to allocate buffer for probe "
- "request\n", dev->name);
- return;
- }
-
- 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;
- for (i = 0; i < local->num_curr_rates; i++) {
- struct ieee80211_rate *rate = &local->curr_rates[i];
- if (!(rate->flags & IEEE80211_RATE_SUPPORTED))
- continue;
- 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]++;
- }
- if (local->hw.conf.phymode == MODE_ATHEROS_TURBO)
- *pos = rate->rate / 10;
- else
- *pos = rate->rate / 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->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->authenticated = 1;
- 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,
- struct ieee80211_rx_status *rx_status)
-{
- u8 *pos;
- struct ieee802_11_elems elems;
-
- printk(KERN_DEBUG "%s: replying to auth challenge\n", dev->name);
- pos = mgmt->u.auth.variable;
- if (ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems)
- == ParseFailed) {
- printk(KERN_DEBUG "%s: failed to parse Auth(challenge)\n",
- dev->name);
- return;
- }
- 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_rx_mgmt_auth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- u16 auth_alg, auth_transaction, status_code;
-
- if (ifsta->state != IEEE80211_AUTHENTICATE &&
- sdata->type != IEEE80211_IF_TYPE_IBSS) {
- printk(KERN_DEBUG "%s: authentication frame received from "
- MAC_FMT ", but not in authenticate state - ignored\n",
- dev->name, MAC_ARG(mgmt->sa));
- return;
- }
-
- if (len < 24 + 6) {
- printk(KERN_DEBUG "%s: too short (%zd) authentication frame "
- "received from " MAC_FMT " - ignored\n",
- dev->name, len, MAC_ARG(mgmt->sa));
- return;
- }
-
- if (sdata->type != IEEE80211_IF_TYPE_IBSS &&
- memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
- printk(KERN_DEBUG "%s: authentication frame received from "
- "unknown AP (SA=" MAC_FMT " BSSID=" MAC_FMT ") - "
- "ignored\n", dev->name, MAC_ARG(mgmt->sa),
- MAC_ARG(mgmt->bssid));
- return;
- }
-
- if (sdata->type != IEEE80211_IF_TYPE_IBSS &&
- memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0) {
- printk(KERN_DEBUG "%s: authentication frame received from "
- "unknown BSSID (SA=" MAC_FMT " BSSID=" MAC_FMT ") - "
- "ignored\n", dev->name, MAC_ARG(mgmt->sa),
- MAC_ARG(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 " MAC_FMT " (alg=%d "
- "transaction=%d status=%d)\n",
- dev->name, MAC_ARG(mgmt->sa), auth_alg,
- auth_transaction, status_code);
-
- if (sdata->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,
- rx_status);
- break;
- }
-}
-
-
-static void ieee80211_rx_mgmt_deauth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- u16 reason_code;
-
- if (len < 24 + 2) {
- printk(KERN_DEBUG "%s: too short (%zd) deauthentication frame "
- "received from " MAC_FMT " - ignored\n",
- dev->name, len, MAC_ARG(mgmt->sa));
- return;
- }
-
- if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
- printk(KERN_DEBUG "%s: deauthentication frame received from "
- "unknown AP (SA=" MAC_FMT " BSSID=" MAC_FMT ") - "
- "ignored\n", dev->name, MAC_ARG(mgmt->sa),
- MAC_ARG(mgmt->bssid));
- return;
- }
-
- reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
-
- printk(KERN_DEBUG "%s: RX deauthentication from " MAC_FMT
- " (reason=%d)\n",
- dev->name, MAC_ARG(mgmt->sa), reason_code);
-
- if (ifsta->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;
- schedule_delayed_work(&ifsta->work,
- IEEE80211_RETRY_AUTH_INTERVAL);
- }
-
- ieee80211_set_disassoc(dev, ifsta, 1);
- ifsta->authenticated = 0;
-}
-
-
-static void ieee80211_rx_mgmt_disassoc(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status)
-{
- u16 reason_code;
-
- if (len < 24 + 2) {
- printk(KERN_DEBUG "%s: too short (%zd) disassociation frame "
- "received from " MAC_FMT " - ignored\n",
- dev->name, len, MAC_ARG(mgmt->sa));
- return;
- }
-
- if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
- printk(KERN_DEBUG "%s: disassociation frame received from "
- "unknown AP (SA=" MAC_FMT " BSSID=" MAC_FMT ") - "
- "ignored\n", dev->name, MAC_ARG(mgmt->sa),
- MAC_ARG(mgmt->bssid));
- return;
- }
-
- reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
-
- printk(KERN_DEBUG "%s: RX disassociation from " MAC_FMT
- " (reason=%d)\n",
- dev->name, MAC_ARG(mgmt->sa), reason_code);
-
- if (ifsta->associated)
- printk(KERN_DEBUG "%s: disassociated\n", dev->name);
-
- if (ifsta->state == IEEE80211_ASSOCIATED) {
- ifsta->state = IEEE80211_ASSOCIATE;
- schedule_delayed_work(&ifsta->work,
- IEEE80211_RETRY_AUTH_INTERVAL);
- }
-
- ieee80211_set_disassoc(dev, ifsta, 0);
-}
-
-
-static void ieee80211_rx_mgmt_assoc_resp(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_mgmt *mgmt,
- size_t len,
- struct ieee80211_rx_status *rx_status,
- int reassoc)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct sta_info *sta;
- u32 rates;
- u16 capab_info, status_code, aid;
- struct ieee802_11_elems elems;
- u8 *pos;
- int i, j;
-
- /* 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 "
- MAC_FMT ", but not in associate state - ignored\n",
- dev->name, MAC_ARG(mgmt->sa));
- return;
- }
-
- if (len < 24 + 6) {
- printk(KERN_DEBUG "%s: too short (%zd) association frame "
- "received from " MAC_FMT " - ignored\n",
- dev->name, len, MAC_ARG(mgmt->sa));
- return;
- }
-
- if (memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
- printk(KERN_DEBUG "%s: association frame received from "
- "unknown AP (SA=" MAC_FMT " BSSID=" MAC_FMT ") - "
- "ignored\n", dev->name, MAC_ARG(mgmt->sa),
- MAC_ARG(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);
- 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));
-
- printk(KERN_DEBUG "%s: RX %sssocResp from " MAC_FMT " (capab=0x%x "
- "status=%d aid=%d)\n",
- dev->name, reassoc ? "Rea" : "A", MAC_ARG(mgmt->sa),
- capab_info, status_code, aid);
-
- if (status_code != WLAN_STATUS_SUCCESS) {
- printk(KERN_DEBUG "%s: AP denied association (code=%d)\n",
- dev->name, status_code);
- return;
- }
-
- pos = mgmt->u.assoc_resp.variable;
- if (ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems)
- == ParseFailed) {
- printk(KERN_DEBUG "%s: failed to parse AssocResp\n",
- dev->name);
- return;
- }
-
- 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_ATOMIC);
- if (ifsta->assocresp_ies)
- memcpy(ifsta->assocresp_ies, pos, ifsta->assocresp_ies_len);
-
- ieee80211_set_associated(dev, ifsta, 1);
-
- /* Add STA entry for the AP */
- sta = sta_info_get(local, ifsta->bssid);
- if (!sta) {
- sta = sta_info_add(local, dev, ifsta->bssid, GFP_ATOMIC);
- if (!sta) {
- printk(KERN_DEBUG "%s: failed to add STA entry for the"
- " AP\n", dev->name);
- return;
- }
- }
-
- sta->dev = dev;
- sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
- sta->assoc_ap = 1;
-
- rates = 0;
- for (i = 0; i < elems.supp_rates_len; i++) {
- int rate = (elems.supp_rates[i] & 0x7f) * 5;
- if (local->hw.conf.phymode == MODE_ATHEROS_TURBO)
- rate *= 2;
- for (j = 0; j < local->num_curr_rates; j++)
- if (local->curr_rates[j].rate == rate)
- rates |= BIT(j);
- }
- for (i = 0; i < elems.ext_supp_rates_len; i++) {
- int rate = (elems.ext_supp_rates[i] & 0x7f) * 5;
- if (local->hw.conf.phymode == MODE_ATHEROS_TURBO)
- rate *= 2;
- for (j = 0; j < local->num_curr_rates; j++)
- if (local->curr_rates[j].rate == rate)
- rates |= BIT(j);
- }
- sta->supp_rates = rates;
-
- rate_control_rate_init(sta, local);
-
- if (elems.wmm_param && ifsta->wmm_enabled) {
- sta->flags |= WLAN_STA_WME;
- ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param,
- elems.wmm_param_len);
- }
-
-
- 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 = 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 = 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)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_sta_bss *bss;
-
- bss = kmalloc(sizeof(*bss), GFP_ATOMIC);
- if (!bss)
- return NULL;
- memset(bss, 0, sizeof(*bss));
- atomic_inc(&bss->users);
- atomic_inc(&bss->users);
- memcpy(bss->bssid, bssid, ETH_ALEN);
-
- 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)
-{
- struct ieee80211_local *local = 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) == 0) {
- 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);
-}
-
-
-static void ieee80211_rx_bss_put(struct net_device *dev,
- struct ieee80211_sta_bss *bss)
-{
- struct ieee80211_local *local = 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 = 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 = 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 = dev->ieee80211_ptr;
- struct ieee802_11_elems elems;
- size_t baselen;
- int channel, invalid = 0, clen;
- struct ieee80211_sta_bss *bss;
- struct sta_info *sta;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- u64 timestamp;
-
- 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 " MAC_FMT " to " MAC_FMT "\n",
- dev->name, beacon ? "Beacon" : "Probe Response",
- MAC_ARG(mgmt->sa), MAC_ARG(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->type == IEEE80211_IF_TYPE_IBSS && beacon &&
- memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0) {
-#ifdef CONFIG_D80211_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=" MAC_FMT " BSSID="
- MAC_FMT " TSF=0x%llx BCN=0x%llx diff=%lld "
- "@%lu\n",
- MAC_ARG(mgmt->sa), MAC_ARG(mgmt->bssid),
- (unsigned long long)tsf,
- (unsigned long long)timestamp,
- (unsigned long long)(tsf - timestamp),
- jiffies);
- last_tsf_debug = jiffies;
- }
-#endif /* CONFIG_D80211_IBSS_DEBUG */
- }
-
- if (ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen,
- &elems) == ParseFailed)
- invalid = 1;
-
- if (sdata->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_hw_mode *mode;
- struct ieee80211_rate *rates;
- size_t num_rates;
- u32 supp_rates, prev_rates;
- int i, j, oper_mode;
-
- rates = local->curr_rates;
- num_rates = local->num_curr_rates;
- oper_mode = local->sta_scanning ? local->scan_oper_phymode :
- local->hw.conf.phymode;
- list_for_each_entry(mode, &local->modes_list, list) {
- if (oper_mode == mode->mode) {
- rates = mode->rates;
- num_rates = mode->num_rates;
- break;
- }
- }
-
- 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);
- if (oper_mode == MODE_ATHEROS_TURBO)
- own_rate *= 2;
- for (j = 0; j < num_rates; j++)
- if (rates[j].rate == own_rate)
- supp_rates |= BIT(j);
- }
-
- prev_rates = sta->supp_rates;
- sta->supp_rates &= supp_rates;
- if (sta->supp_rates == 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 = sdata->u.sta.supp_rates_bits;
- }
- if (sta->supp_rates != prev_rates) {
- printk(KERN_DEBUG "%s: updated supp_rates set for "
- MAC_FMT " based on beacon info (0x%x & 0x%x -> "
- "0x%x)\n",
- dev->name, MAC_ARG(sta->addr), prev_rates,
- supp_rates, sta->supp_rates);
- }
- sta_info_put(sta);
- }
-
- if (!elems.ssid)
- return;
-
- if (elems.ds_params && elems.ds_params_len == 1)
- channel = elems.ds_params[0];
- else
- channel = rx_status->channel;
-
- bss = ieee80211_rx_bss_get(dev, mgmt->bssid);
- if (!bss) {
- bss = ieee80211_rx_bss_add(dev, mgmt->bssid);
- 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
- }
-
- if (bss->probe_resp && beacon) {
- /* Do not allow beacon to override data from Probe Response. */
- ieee80211_rx_bss_put(dev, bss);
- return;
- }
-
- bss->beacon_int = le16_to_cpu(mgmt->u.beacon.beacon_int);
- bss->capability = le16_to_cpu(mgmt->u.beacon.capab_info);
- if (elems.ssid && elems.ssid_len <= IEEE80211_MAX_SSID_LEN) {
- memcpy(bss->ssid, elems.ssid, elems.ssid_len);
- bss->ssid_len = elems.ssid_len;
- }
-
- 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;
- }
-
-
- bss->hw_mode = rx_status->phymode;
- bss->channel = channel;
- bss->freq = rx_status->freq;
- if (channel != rx_status->channel &&
- (bss->hw_mode == MODE_IEEE80211G ||
- bss->hw_mode == MODE_IEEE80211B) &&
- channel >= 1 && channel <= 14) {
- static const int freq_list[] = {
- 2412, 2417, 2422, 2427, 2432, 2437, 2442,
- 2447, 2452, 2457, 2462, 2467, 2472, 2484
- };
- /* IEEE 802.11g/b mode can receive packets from neighboring
- * channels, so map the channel into frequency. */
- bss->freq = freq_list[channel - 1];
- }
- bss->timestamp = timestamp;
- bss->last_update = jiffies;
- bss->rssi = rx_status->ssi;
- 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_local *local = dev->ieee80211_ptr;
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_if_sta *ifsta;
- int use_protection;
- size_t baselen;
- struct ieee802_11_elems elems;
-
- ieee80211_rx_bss_info(dev, mgmt, len, rx_status, 1);
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type != IEEE80211_IF_TYPE_STA)
- return;
- ifsta = &sdata->u.sta;
-
- if (!ifsta->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;
-
- if (ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen,
- &elems) == ParseFailed)
- return;
-
- use_protection = 0;
- if (elems.erp_info && elems.erp_info_len >= 1) {
- use_protection =
- (elems.erp_info[0] & ERP_INFO_USE_PROTECTION) != 0;
- }
-
- if (use_protection != !!ifsta->use_protection) {
- if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: CTS protection %s (BSSID="
- MAC_FMT ")\n",
- dev->name,
- use_protection ? "enabled" : "disabled",
- MAC_ARG(ifsta->bssid));
- }
- ifsta->use_protection = use_protection ? 1 : 0;
- local->cts_protect_erp_frames = use_protection;
- }
-
- if (elems.wmm_param && ifsta->wmm_enabled) {
- ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param,
- elems.wmm_param_len);
- }
-}
-
-
-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 = 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;
-
- if (sdata->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_D80211_IBSS_DEBUG
- printk(KERN_DEBUG "%s: RX ProbeReq SA=" MAC_FMT " DA=" MAC_FMT " BSSID="
- MAC_FMT " (tx_last_beacon=%d)\n",
- dev->name, MAC_ARG(mgmt->sa), MAC_ARG(mgmt->da),
- MAC_ARG(mgmt->bssid), tx_last_beacon);
-#endif /* CONFIG_D80211_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 " MAC_FMT "\n",
- dev->name, MAC_ARG(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_ATOMIC);
- if (!skb)
- return;
-
- resp = (struct ieee80211_mgmt *) skb->data;
- memcpy(resp->da, mgmt->sa, ETH_ALEN);
-#ifdef CONFIG_D80211_IBSS_DEBUG
- printk(KERN_DEBUG "%s: Sending ProbeResp to " MAC_FMT "\n",
- dev->name, MAC_ARG(resp->da));
-#endif /* CONFIG_D80211_IBSS_DEBUG */
- ieee80211_sta_tx(dev, skb, 0);
-}
-
-
-void ieee80211_sta_rx_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;
-
- 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:
- 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, rx_status);
- break;
- case IEEE80211_STYPE_ASSOC_RESP:
- ieee80211_rx_mgmt_assoc_resp(dev, ifsta, mgmt, skb->len,
- rx_status, 0);
- break;
- case IEEE80211_STYPE_REASSOC_RESP:
- ieee80211_rx_mgmt_assoc_resp(dev, ifsta, mgmt, skb->len,
- rx_status, 1);
- break;
- case IEEE80211_STYPE_DEAUTH:
- ieee80211_rx_mgmt_deauth(dev, ifsta, mgmt, skb->len,
- rx_status);
- break;
- case IEEE80211_STYPE_DISASSOC:
- ieee80211_rx_mgmt_disassoc(dev, ifsta, mgmt, skb->len,
- rx_status);
- break;
- default:
- printk(KERN_DEBUG "%s: received unknown management frame - "
- "stype=%d\n", dev->name,
- (fc & IEEE80211_FCTL_STYPE) >> 4);
- break;
- }
-
- fail:
- dev_kfree_skb(skb);
-}
-
-
-void 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 < 24) {
- dev_kfree_skb(skb);
- return;
- }
-
- mgmt = (struct ieee80211_mgmt *) skb->data;
- fc = le16_to_cpu(mgmt->frame_control);
-
- 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);
- } else if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON) {
- ieee80211_rx_mgmt_beacon(dev, mgmt, skb->len,
- rx_status);
- }
- }
-
- dev_kfree_skb(skb);
-}
-
-
-static int ieee80211_sta_active_ibss(struct net_device *dev)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- int active = 0;
- struct sta_info *sta;
-
- spin_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;
- }
- }
- spin_unlock_bh(&local->sta_lock);
-
- return active;
-}
-
-
-static void ieee80211_sta_expire(struct net_device *dev)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct sta_info *sta, *tmp;
-
- spin_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 " MAC_FMT
- "\n", dev->name, MAC_ARG(sta->addr));
- sta_info_free(sta, 1);
- }
- spin_unlock_bh(&local->sta_lock);
-}
-
-
-static void ieee80211_sta_merge_ibss(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- schedule_delayed_work(&ifsta->work, 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_work(struct work_struct *work)
-{
- struct ieee80211_sub_if_data *sdata =
- container_of(work, struct ieee80211_sub_if_data, u.sta.work.work);
- struct net_device *dev = sdata->dev;
- struct ieee80211_if_sta *ifsta;
-
- if (!netif_running(dev))
- return;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type != IEEE80211_IF_TYPE_STA &&
- sdata->type != IEEE80211_IF_TYPE_IBSS) {
- printk(KERN_DEBUG "%s: ieee80211_sta_work: non-STA interface "
- "(type=%d)\n", dev->name, sdata->type);
- return;
- }
- ifsta = &sdata->u.sta;
-
- 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_new_auth(struct net_device *dev,
- struct ieee80211_if_sta *ifsta)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (sdata->type != IEEE80211_IF_TYPE_STA)
- return;
-
- 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->associated = ifsta->auth_tries = ifsta->assoc_tries = 0;
- ieee80211_authenticate(dev, ifsta);
-}
-
-
-static int ieee80211_ibss_allowed(struct ieee80211_local *local)
-{
- struct ieee80211_hw_mode *mode;
- int c;
-
- list_for_each_entry(mode, &local->modes_list, list) {
- if (mode->mode != local->hw.conf.phymode)
- continue;
- for (c = 0; c < mode->num_channels; c++) {
- struct ieee80211_channel *chan = &mode->channels[c];
- if (chan->flag & IEEE80211_CHAN_W_SCAN &&
- chan->chan == local->hw.conf.channel) {
- if (chan->flag & IEEE80211_CHAN_W_IBSS)
- return 1;
- break;
- }
- }
- }
-
- return 0;
-}
-
-
-extern int ieee80211_ioctl_siwfreq(struct net_device *dev,
- struct iw_request_info *info,
- struct iw_freq *freq, char *extra);
-
-static int ieee80211_sta_join_ibss(struct net_device *dev,
- struct ieee80211_if_sta *ifsta,
- struct ieee80211_sta_bss *bss)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct iw_freq rq;
- int res, rates, i, j;
- struct sk_buff *skb;
- struct ieee80211_mgmt *mgmt;
- struct ieee80211_tx_control control;
- struct ieee80211_rate *rate;
- struct rate_control_extra extra;
- u8 *pos;
- struct ieee80211_sub_if_data *sdata;
-
- /* 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;
-
- memset(&rq, 0, sizeof(rq));
- rq.m = bss->freq * 100000;
- rq.e = 1;
- res = ieee80211_ioctl_siwfreq(dev, NULL, &rq, NULL);
-
- if (!ieee80211_ibss_allowed(local)) {
- printk(KERN_DEBUG "%s: IBSS not allowed on channel %d "
- "(%d MHz)\n", dev->name, local->hw.conf.channel,
- local->hw.conf.freq);
- return -1;
- }
-
- /* Set beacon template based on scan results */
- skb = dev_alloc_skb(400);
- do {
- if (!skb)
- break;
-
- 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);
-
- pos = skb_put(skb, 2 + 1);
- *pos++ = WLAN_EID_DS_PARAMS;
- *pos++ = 1;
- *pos++ = bss->channel;
-
- 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));
- memset(&extra, 0, sizeof(extra));
- extra.endidx = local->num_curr_rates;
- rate = rate_control_get_rate(local, dev, skb, &extra);
- if (!rate) {
- printk(KERN_DEBUG "%s: Failed to determine TX rate "
- "for IBSS beacon\n", dev->name);
- break;
- }
- control.tx_rate = (local->short_preamble &&
- (rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
- rate->val2 : rate->val;
- control.antenna_sel = local->hw.conf.antenna_sel;
- control.power_level = local->hw.conf.power_level;
- control.flags |= IEEE80211_TXCTL_NO_ACK;
- control.retry_limit = 1;
- control.rts_cts_duration = 0;
-
- 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;
- for (i = 0; i < bss->supp_rates_len; i++) {
- int rate = (bss->supp_rates[i] & 0x7f) * 5;
- if (local->hw.conf.phymode == MODE_ATHEROS_TURBO)
- rate *= 2;
- for (j = 0; j < local->num_curr_rates; j++)
- if (local->curr_rates[j].rate == rate)
- rates |= BIT(j);
- }
- ifsta->supp_rates_bits = 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;
- schedule_delayed_work(&ifsta->work, 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 = dev->ieee80211_ptr;
- struct ieee80211_sta_bss *bss;
- struct ieee80211_sub_if_data *sdata;
- u8 bssid[ETH_ALEN], *pos;
- int i;
-
-#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 " MAC_FMT "\n",
- dev->name, MAC_ARG(bssid));
-
- bss = ieee80211_rx_bss_add(dev, bssid);
- if (!bss)
- return -ENOMEM;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (local->hw.conf.beacon_int == 0)
- local->hw.conf.beacon_int = 100;
- bss->beacon_int = local->hw.conf.beacon_int;
- bss->hw_mode = local->hw.conf.phymode;
- bss->channel = local->hw.conf.channel;
- bss->freq = local->hw.conf.freq;
- 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 = local->num_curr_rates;
- pos = bss->supp_rates;
- for (i = 0; i < local->num_curr_rates; i++) {
- int rate = local->curr_rates[i].rate;
- if (local->hw.conf.phymode == MODE_ATHEROS_TURBO)
- rate /= 2;
- *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 = dev->ieee80211_ptr;
- struct ieee80211_sta_bss *bss;
- int found = 0;
- u8 bssid[ETH_ALEN];
- int active_ibss;
-
- if (ifsta->ssid_len == 0)
- return -EINVAL;
-
- active_ibss = ieee80211_sta_active_ibss(dev);
-#ifdef CONFIG_D80211_IBSS_DEBUG
- printk(KERN_DEBUG "%s: sta_find_ibss (active_ibss=%d)\n",
- dev->name, active_ibss);
-#endif /* CONFIG_D80211_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_D80211_IBSS_DEBUG
- printk(KERN_DEBUG " bssid=" MAC_FMT " found\n",
- MAC_ARG(bss->bssid));
-#endif /* CONFIG_D80211_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_D80211_IBSS_DEBUG
- printk(KERN_DEBUG " sta_find_ibss: selected " MAC_FMT " current "
- MAC_FMT "\n", MAC_ARG(bssid), MAC_ARG(ifsta->bssid));
-#endif /* CONFIG_D80211_IBSS_DEBUG */
- if (found && memcmp(ifsta->bssid, bssid, ETH_ALEN) != 0 &&
- (bss = ieee80211_rx_bss_get(dev, bssid))) {
- printk(KERN_DEBUG "%s: Selected IBSS BSSID " MAC_FMT
- " based on configured SSID\n",
- dev->name, MAC_ARG(bssid));
- return ieee80211_sta_join_ibss(dev, ifsta, bss);
- }
-#ifdef CONFIG_D80211_IBSS_DEBUG
- printk(KERN_DEBUG " did not try to join ibss\n");
-#endif /* CONFIG_D80211_IBSS_DEBUG */
-
- /* Selected IBSS not found in current scan results - try to scan */
- if (ifsta->state == IEEE80211_IBSS_JOINED &&
- !ieee80211_sta_active_ibss(dev)) {
- schedule_delayed_work(&ifsta->work,
- 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->create_ibss &&
- ieee80211_ibss_allowed(local))
- return ieee80211_sta_create_ibss(dev, ifsta);
- if (ifsta->create_ibss) {
- printk(KERN_DEBUG "%s: IBSS not allowed on the"
- " configured channel %d (%d MHz)\n",
- dev->name, local->hw.conf.channel,
- local->hw.conf.freq);
- }
-
- /* No IBSS found - decrease scan interval and continue
- * scanning. */
- interval = IEEE80211_SCAN_INTERVAL_SLOW;
- }
-
- ifsta->state = IEEE80211_IBSS_SEARCH;
- schedule_delayed_work(&ifsta->work, 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;
- struct ieee80211_if_sta *ifsta;
- struct ieee80211_local *local = 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));
- /* TODO: are these ok defaults for all hw_modes? */
- qparam.aifs = 2;
- qparam.cw_min =
- local->hw.conf.phymode == MODE_IEEE80211B ? 31 : 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);
- }
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- ifsta = &sdata->u.sta;
-
- if (ifsta->ssid_len != len || memcmp(ifsta->ssid, ssid, len) != 0)
- ifsta->prev_bssid_set = 0;
- memcpy(ifsta->ssid, ssid, len);
- memset(ifsta->ssid + len, 0, IEEE80211_MAX_SSID_LEN - len);
- ifsta->ssid_len = len;
-
- ifsta->ssid_set = 1;
- if (sdata->type == IEEE80211_IF_TYPE_IBSS && !ifsta->bssid_set) {
- ifsta->ibss_join_req = jiffies;
- ifsta->state = IEEE80211_IBSS_SEARCH;
- return ieee80211_sta_find_ibss(dev, ifsta);
- }
-
- if (ifsta->bssid_set && ifsta->state != IEEE80211_AUTHENTICATE)
- ieee80211_sta_new_auth(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 (memcmp(bssid, "\x00\x00\x00\x00\x00\x00", ETH_ALEN) == 0)
- ifsta->bssid_set = 0;
- else
- ifsta->bssid_set = 1;
- if (ifsta->ssid_set && ifsta->state != IEEE80211_AUTHENTICATE)
- ieee80211_sta_new_auth(dev, ifsta);
-
- return 0;
-}
-
-
-static void ieee80211_sta_save_oper_chan(struct net_device *dev)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- local->scan_oper_channel = local->hw.conf.channel;
- local->scan_oper_channel_val = local->hw.conf.channel_val;
- local->scan_oper_power_level = local->hw.conf.power_level;
- local->scan_oper_freq = local->hw.conf.freq;
- local->scan_oper_phymode = local->hw.conf.phymode;
- local->scan_oper_antenna_max = local->hw.conf.antenna_max;
-}
-
-
-static int ieee80211_sta_restore_oper_chan(struct net_device *dev)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- local->hw.conf.channel = local->scan_oper_channel;
- local->hw.conf.channel_val = local->scan_oper_channel_val;
- local->hw.conf.power_level = local->scan_oper_power_level;
- local->hw.conf.freq = local->scan_oper_freq;
- local->hw.conf.phymode = local->scan_oper_phymode;
- local->hw.conf.antenna_max = local->scan_oper_antenna_max;
- return ieee80211_hw_config(local);
-}
-
-
-static int ieee80211_active_scan(struct ieee80211_local *local)
-{
- struct ieee80211_hw_mode *mode;
- int c;
-
- list_for_each_entry(mode, &local->modes_list, list) {
- if (mode->mode != local->hw.conf.phymode)
- continue;
- for (c = 0; c < mode->num_channels; c++) {
- struct ieee80211_channel *chan = &mode->channels[c];
- if (chan->flag & IEEE80211_CHAN_W_SCAN &&
- chan->chan == local->hw.conf.channel) {
- if (chan->flag & IEEE80211_CHAN_W_ACTIVE_SCAN)
- return 1;
- break;
- }
- }
- }
-
- return 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 = IEEE80211_DEV_TO_SUB_IF(dev);
- union iwreq_data wrqu;
-
- printk(KERN_DEBUG "%s: scan completed\n", dev->name);
- local->sta_scanning = 0;
- local->last_scan_completed = jiffies;
-
- memset(&wrqu, 0, sizeof(wrqu));
- wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
-
- if (sdata->type == IEEE80211_IF_TYPE_IBSS) {
- struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- if (!ifsta->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_hw_mode *mode;
- struct ieee80211_channel *chan;
- int skip;
- unsigned long next_delay = 0;
-
- if (!local->sta_scanning)
- return;
-
- switch (local->scan_state) {
- case SCAN_SET_CHANNEL:
- mode = local->scan_hw_mode;
- if (local->scan_hw_mode->list.next == &local->modes_list &&
- local->scan_channel_idx >= mode->num_channels) {
- if (ieee80211_sta_restore_oper_chan(dev)) {
- printk(KERN_DEBUG "%s: failed to restore "
- "operational channel after scan\n",
- dev->name);
- }
-
- ieee80211_scan_completed(local_to_hw(local));
- return;
- }
- skip = !(local->enabled_modes & (1 << mode->mode));
- chan = &mode->channels[local->scan_channel_idx];
- if (!(chan->flag & IEEE80211_CHAN_W_SCAN) ||
- (sdata->type == IEEE80211_IF_TYPE_IBSS &&
- !(chan->flag & IEEE80211_CHAN_W_IBSS)) ||
- (local->hw_modes & local->enabled_modes &
- (1 << MODE_IEEE80211G) && mode->mode == MODE_IEEE80211B))
- skip = 1;
-
- if (!skip) {
-#if 0
- printk(KERN_DEBUG "%s: scan channel %d (%d MHz)\n",
- dev->name, chan->chan, chan->freq);
-#endif
-
- local->hw.conf.channel = chan->chan;
- local->hw.conf.channel_val = chan->val;
- local->hw.conf.power_level = chan->power_level;
- local->hw.conf.freq = chan->freq;
- local->hw.conf.phymode = mode->mode;
- local->hw.conf.antenna_max = chan->antenna_max;
- if (ieee80211_hw_config(local)) {
- printk(KERN_DEBUG "%s: failed to set channel "
- "%d (%d MHz) for scan\n", dev->name,
- chan->chan, chan->freq);
- skip = 1;
- }
- }
-
- local->scan_channel_idx++;
- if (local->scan_channel_idx >= local->scan_hw_mode->num_channels) {
- if (local->scan_hw_mode->list.next != &local->modes_list) {
- local->scan_hw_mode = list_entry(local->scan_hw_mode->list.next,
- struct ieee80211_hw_mode,
- list);
- 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:
- if (ieee80211_active_scan(local)) {
- ieee80211_send_probe_req(dev, NULL, local->scan_ssid,
- local->scan_ssid_len);
- next_delay = IEEE80211_CHANNEL_TIME;
- } else
- next_delay = IEEE80211_PASSIVE_CHANNEL_TIME;
- local->scan_state = SCAN_SET_CHANNEL;
- break;
- }
-
- if (local->sta_scanning) {
- if (next_delay)
- schedule_delayed_work(&local->scan_work, next_delay);
- else
- schedule_work(&local->scan_work.work);
- }
-}
-
-
-int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
-
- 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
- */
-
- /* TODO: if assoc, move to power save mode for the duration of the
- * scan */
-
- if (local->sta_scanning) {
- if (local->scan_dev == dev)
- return 0;
- return -EBUSY;
- }
-
- printk(KERN_DEBUG "%s: starting scan\n", dev->name);
-
- if (local->ops->hw_scan) {
- int rc = local->ops->hw_scan(local_to_hw(local),
- ssid, ssid_len);
- if (!rc) {
- local->sta_scanning = 1;
- local->scan_dev = dev;
- }
- return rc;
- }
-
- ieee80211_sta_save_oper_chan(dev);
-
- local->sta_scanning = 1;
- /* TODO: stop TX queue? */
-
- 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_hw_mode = list_entry(local->modes_list.next,
- struct ieee80211_hw_mode,
- list);
- local->scan_channel_idx = 0;
- local->scan_dev = dev;
- schedule_work(&local->scan_work.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 = dev->ieee80211_ptr;
- struct iw_event iwe;
-
- if (time_after(jiffies,
- bss->last_update + IEEE80211_SCAN_RESULT_EXPIRE))
- return current_ev;
-
- if (!(local->enabled_modes & (1 << bss->hw_mode)))
- return current_ev;
-
- if (local->scan_flags & IEEE80211_SCAN_WPA_ONLY &&
- !bss->wpa_ie && !bss->rsn_ie)
- return current_ev;
-
- if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID &&
- (local->scan_ssid_len != bss->ssid_len ||
- memcmp(local->scan_ssid, bss->ssid, bss->ssid_len) != 0))
- 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 * 100000;
- iwe.u.freq.e = 1;
- current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe,
- IW_EV_FREQ_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) {
- char *buf, *p;
- int i;
- buf = kmalloc(30 + bss->wpa_ie_len * 2, GFP_ATOMIC);
- if (buf) {
- p = buf;
- p += sprintf(p, "wpa_ie=");
- for (i = 0; i < bss->wpa_ie_len; i++)
- p+= sprintf(p, "%02x", bss->wpa_ie[i]);
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVCUSTOM;
- iwe.u.data.length = strlen(buf);
- current_ev = iwe_stream_add_point(current_ev, end_buf,
- &iwe, buf);
- kfree(buf);
- }
- }
-
- if (bss && bss->rsn_ie) {
- char *buf, *p;
- int i;
- buf = kmalloc(30 + bss->rsn_ie_len * 2, GFP_ATOMIC);
- if (buf) {
- p = buf;
- p += sprintf(p, "rsn_ie=");
- for (i = 0; i < bss->rsn_ie_len; i++)
- p+= sprintf(p, "%02x", bss->rsn_ie[i]);
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVCUSTOM;
- iwe.u.data.length = strlen(buf);
- current_ev = iwe_stream_add_point(current_ev, end_buf,
- &iwe, buf);
- kfree(buf);
- }
- }
-
- 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);
- }
- }
-
- do {
- char *buf, *p;
- int i;
-
- if (!(local->scan_flags & IEEE80211_SCAN_EXTRA_INFO))
- break;
-
- buf = kmalloc(100, GFP_ATOMIC);
- if (!buf)
- break;
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVCUSTOM;
- sprintf(buf, "bcn_int=%d", bss->beacon_int);
- iwe.u.data.length = strlen(buf);
- current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
- buf);
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVCUSTOM;
- sprintf(buf, "rssi=%d", bss->rssi);
- iwe.u.data.length = strlen(buf);
- current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
- buf);
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVCUSTOM;
- sprintf(buf, "capab=0x%04x", bss->capability);
- iwe.u.data.length = strlen(buf);
- current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
- buf);
-
- /* dispaly all support rates in readable format */
- p = current_ev + IW_EV_LCP_LEN;
- 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);
- }
- /* Check if we added any rate */
- if((p - current_ev) > IW_EV_LCP_LEN)
- current_ev = p;
-
- kfree(buf);
- break;
- } while (0);
-
- return current_ev;
-}
-
-
-int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len)
-{
- struct ieee80211_local *local = 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;
- if (ifsta->bssid_set && ifsta->ssid_set &&
- ifsta->state != IEEE80211_AUTHENTICATE)
- ieee80211_sta_new_auth(dev, ifsta);
- 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 = dev->ieee80211_ptr;
- struct sta_info *sta;
- struct ieee80211_sub_if_data *sdata = NULL;
- struct net_device *sta_dev = NULL;
-
- /* 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 " MAC_FMT "\n", dev->name, MAC_ARG(addr));
- }
- return NULL;
- }
-
- spin_lock_bh(&local->sub_if_lock);
- list_for_each_entry(sdata, &local->sub_if_list, list)
- if (sdata->type == IEEE80211_IF_TYPE_IBSS &&
- memcmp(bssid, sdata->u.sta.bssid, ETH_ALEN) == 0) {
- sta_dev = sdata->dev;
- break;
- }
- spin_unlock_bh(&local->sub_if_lock);
-
- if (!sta_dev)
- return NULL;
-
- printk(KERN_DEBUG "%s: Adding new IBSS station " MAC_FMT " (dev=%s)\n",
- dev->name, MAC_ARG(addr), sta_dev->name);
-
- sta = sta_info_add(local, dev, addr, GFP_ATOMIC);
- if (!sta)
- return NULL;
-
- sta->dev = sta_dev;
- sta->supp_rates = sdata->u.sta.supp_rates_bits;
-
- 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->type != IEEE80211_IF_TYPE_STA &&
- sdata->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->type != IEEE80211_IF_TYPE_STA)
- return -EINVAL;
-
- if (!ifsta->associated)
- return -1;
-
- ieee80211_send_disassoc(dev, ifsta, reason);
- ieee80211_set_disassoc(dev, ifsta, 0);
- return 0;
-}
+++ /dev/null
-/*
- * 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/device.h>
-#include <linux/if.h>
-#include <linux/interrupt.h>
-#include <linux/netdevice.h>
-#include <linux/rtnetlink.h>
-#include <net/d80211.h>
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-
-#define to_ieee80211_local(class) \
- container_of(class, struct ieee80211_local, class_dev)
-#define to_net_dev(class) \
- container_of(class, struct net_device, class_dev)
-
-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;
-}
-
-static const char *ieee80211_mode_str_short(int mode)
-{
- switch (mode) {
- case MODE_IEEE80211A:
- return "802.11a";
- case MODE_IEEE80211B:
- return "802.11b";
- case MODE_IEEE80211G:
- return "802.11g";
- case MODE_ATHEROS_TURBO:
- return "AtherosTurbo";
- default:
- return "UNKNOWN";
- }
-}
-
-static const char *ieee80211_mode_str(int mode)
-{
- switch (mode) {
- case MODE_IEEE80211A:
- return "IEEE 802.11a";
- case MODE_IEEE80211B:
- return "IEEE 802.11b";
- case MODE_IEEE80211G:
- return "IEEE 802.11g";
- case MODE_ATHEROS_TURBO:
- return "Atheros Turbo (5 GHz)";
- default:
- return "UNKNOWN";
- }
-}
-
-/* attributes in /sys/class/ieee80211/phyX/ */
-
-static ssize_t store_add_iface(struct class_device *dev,
- const char *buf, size_t len)
-{
- struct ieee80211_local *local = to_ieee80211_local(dev);
- struct net_device *new_dev;
- int res;
-
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
- if (len > IFNAMSIZ)
- return -EINVAL;
- res = rtnl_lock_local(local);
- if (res)
- return res;
- res = ieee80211_if_add(local->mdev, buf, 0, &new_dev);
- if (res == 0)
- ieee80211_if_set_type(new_dev, IEEE80211_IF_TYPE_STA);
- rtnl_unlock();
- return res < 0 ? res : len;
-}
-
-static ssize_t store_remove_iface(struct class_device *dev,
- const char *buf, size_t len)
-{
- struct ieee80211_local *local = to_ieee80211_local(dev);
- int res;
-
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
- if (len > IFNAMSIZ)
- return -EINVAL;
- res = rtnl_lock_local(local);
- if (res)
- return res;
- res = ieee80211_if_remove(local->mdev, buf, -1);
- rtnl_unlock();
- return res < 0 ? res : len;
-}
-
-static ssize_t store_rate_ctrl_alg(struct class_device *dev,
- const char *buf, size_t len)
-{
- struct ieee80211_local *local = to_ieee80211_local(dev);
- int res;
-
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
- res = rtnl_lock_local(local);
- if (res)
- return res;
- res = ieee80211_init_rate_ctrl_alg(local, buf);
- rtnl_unlock();
- return res < 0 ? res : len;
-}
-
-static ssize_t ieee80211_local_show(struct class_device *dev, char *buf,
- ssize_t (*format)(struct ieee80211_local *, char *))
-{
- struct ieee80211_local *local = to_ieee80211_local(dev);
- ssize_t ret = -EINVAL;
-
- if (local->reg_state == IEEE80211_DEV_REGISTERED)
- ret = (*format)(local, buf);
- return ret;
-}
-
-#define IEEE80211_LOCAL_FMT(name, field, format_string) \
-static ssize_t ieee80211_local_fmt_##name(struct ieee80211_local *local,\
- char *buf) \
-{ \
- return sprintf(buf, format_string, local->field); \
-}
-
-#define __IEEE80211_LOCAL_SHOW(name) \
-static ssize_t ieee80211_local_show_##name(struct class_device *cd, \
- char *buf) \
-{ \
- return ieee80211_local_show(cd, buf, \
- ieee80211_local_fmt_##name); \
-}
-
-#define IEEE80211_LOCAL_SHOW(name, field, format) \
- IEEE80211_LOCAL_FMT(name, field, format "\n") \
- __IEEE80211_LOCAL_SHOW(name)
-
-IEEE80211_LOCAL_SHOW(channel, hw.conf.channel, "%d");
-IEEE80211_LOCAL_SHOW(frequency, hw.conf.freq, "%d");
-IEEE80211_LOCAL_SHOW(radar_detect, hw.conf.radar_detect, "%d");
-IEEE80211_LOCAL_SHOW(antenna_sel, hw.conf.antenna_sel, "%d");
-IEEE80211_LOCAL_SHOW(bridge_packets, bridge_packets, "%d");
-IEEE80211_LOCAL_SHOW(key_tx_rx_threshold, key_tx_rx_threshold, "%d");
-IEEE80211_LOCAL_SHOW(rts_threshold, rts_threshold, "%d");
-IEEE80211_LOCAL_SHOW(fragmentation_threshold, fragmentation_threshold, "%d");
-IEEE80211_LOCAL_SHOW(short_retry_limit, short_retry_limit, "%d");
-IEEE80211_LOCAL_SHOW(long_retry_limit, long_retry_limit, "%d");
-IEEE80211_LOCAL_SHOW(total_ps_buffered, total_ps_buffered, "%d");
-
-static ssize_t ieee80211_local_fmt_mode(struct ieee80211_local *local,
- char *buf)
-{
- return sprintf(buf, "%s\n", ieee80211_mode_str(local->hw.conf.phymode));
-}
-__IEEE80211_LOCAL_SHOW(mode);
-
-static ssize_t ieee80211_local_fmt_wep_iv(struct ieee80211_local *local,
- char *buf)
-{
- return sprintf(buf, "%#06x\n", local->wep_iv & 0xffffff);
-}
-__IEEE80211_LOCAL_SHOW(wep_iv);
-
-static ssize_t ieee80211_local_fmt_tx_power_reduction(struct ieee80211_local
- *local, char *buf)
-{
- short tx_power_reduction = local->hw.conf.tx_power_reduction;
-
- return sprintf(buf, "%d.%d dBm\n", tx_power_reduction / 10,
- tx_power_reduction % 10);
-}
-__IEEE80211_LOCAL_SHOW(tx_power_reduction);
-
-static ssize_t ieee80211_local_fmt_modes(struct ieee80211_local *local,
- char *buf)
-{
- struct ieee80211_hw_mode *mode;
- char *p = buf;
-
- /* FIXME: Locking? Could register a mode in the meantime. */
- list_for_each_entry(mode, &local->modes_list, list)
- p += sprintf(p, "%s\n", ieee80211_mode_str_short(mode->mode));
-
- return (p - buf);
-}
-__IEEE80211_LOCAL_SHOW(modes);
-
-static ssize_t ieee80211_local_fmt_rate_ctrl_alg(struct ieee80211_local *local,
- char *buf)
-{
- struct rate_control_ref *ref = local->rate_ctrl;
- if (ref)
- return sprintf(buf, "%s\n", ref->ops->name);
- return 0;
-}
-__IEEE80211_LOCAL_SHOW(rate_ctrl_alg);
-
-static struct class_device_attribute ieee80211_class_dev_attrs[] = {
- __ATTR(add_iface, S_IWUGO, NULL, store_add_iface),
- __ATTR(remove_iface, S_IWUGO, NULL, store_remove_iface),
- __ATTR(channel, S_IRUGO, ieee80211_local_show_channel, NULL),
- __ATTR(frequency, S_IRUGO, ieee80211_local_show_frequency, NULL),
- __ATTR(radar_detect, S_IRUGO, ieee80211_local_show_radar_detect, NULL),
- __ATTR(antenna_sel, S_IRUGO, ieee80211_local_show_antenna_sel, NULL),
- __ATTR(bridge_packets, S_IRUGO, ieee80211_local_show_bridge_packets, NULL),
- __ATTR(key_tx_rx_threshold, S_IRUGO, ieee80211_local_show_key_tx_rx_threshold, NULL),
- __ATTR(rts_threshold, S_IRUGO, ieee80211_local_show_rts_threshold, NULL),
- __ATTR(fragmentation_threshold, S_IRUGO, ieee80211_local_show_fragmentation_threshold, NULL),
- __ATTR(short_retry_limit, S_IRUGO, ieee80211_local_show_short_retry_limit, NULL),
- __ATTR(long_retry_limit, S_IRUGO, ieee80211_local_show_long_retry_limit, NULL),
- __ATTR(total_ps_buffered, S_IRUGO, ieee80211_local_show_total_ps_buffered, NULL),
- __ATTR(mode, S_IRUGO, ieee80211_local_show_mode, NULL),
- __ATTR(wep_iv, S_IRUGO, ieee80211_local_show_wep_iv, NULL),
- __ATTR(tx_power_reduction, S_IRUGO, ieee80211_local_show_tx_power_reduction, NULL),
- __ATTR(modes, S_IRUGO, ieee80211_local_show_modes, NULL),
- __ATTR(rate_ctrl_alg, S_IRUGO | S_IWUGO, ieee80211_local_show_rate_ctrl_alg, store_rate_ctrl_alg),
- {}
-};
-
-/* attributes in /sys/class/ieee80211/phyX/statistics/ */
-
-#define IEEE80211_LOCAL_ATTR(name, field, format) \
-IEEE80211_LOCAL_SHOW(name, field, format) \
-static CLASS_DEVICE_ATTR(name, S_IRUGO, ieee80211_local_show_##name, NULL);
-
-IEEE80211_LOCAL_ATTR(transmitted_fragment_count, dot11TransmittedFragmentCount, "%u");
-IEEE80211_LOCAL_ATTR(multicast_transmitted_frame_count, dot11MulticastTransmittedFrameCount, "%u");
-IEEE80211_LOCAL_ATTR(failed_count, dot11FailedCount, "%u");
-IEEE80211_LOCAL_ATTR(retry_count, dot11RetryCount, "%u");
-IEEE80211_LOCAL_ATTR(multiple_retry_count, dot11MultipleRetryCount, "%u");
-IEEE80211_LOCAL_ATTR(frame_duplicate_count, dot11FrameDuplicateCount, "%u");
-IEEE80211_LOCAL_ATTR(received_fragment_count, dot11ReceivedFragmentCount, "%u");
-IEEE80211_LOCAL_ATTR(multicast_received_frame_count, dot11MulticastReceivedFrameCount, "%u");
-IEEE80211_LOCAL_ATTR(transmitted_frame_count, dot11TransmittedFrameCount, "%u");
-IEEE80211_LOCAL_ATTR(wep_undecryptable_count, dot11WEPUndecryptableCount, "%u");
-IEEE80211_LOCAL_ATTR(num_scans, scan.num_scans, "%u");
-
-#ifdef CONFIG_D80211_DEBUG_COUNTERS
-IEEE80211_LOCAL_ATTR(tx_handlers_drop, tx_handlers_drop, "%u");
-IEEE80211_LOCAL_ATTR(tx_handlers_queued, tx_handlers_queued, "%u");
-IEEE80211_LOCAL_ATTR(tx_handlers_drop_unencrypted, tx_handlers_drop_unencrypted, "%u");
-IEEE80211_LOCAL_ATTR(tx_handlers_drop_fragment, tx_handlers_drop_fragment, "%u");
-IEEE80211_LOCAL_ATTR(tx_handlers_drop_wep, tx_handlers_drop_wep, "%u");
-IEEE80211_LOCAL_ATTR(tx_handlers_drop_not_assoc, tx_handlers_drop_not_assoc, "%u");
-IEEE80211_LOCAL_ATTR(tx_handlers_drop_unauth_port, tx_handlers_drop_unauth_port, "%u");
-IEEE80211_LOCAL_ATTR(rx_handlers_drop, rx_handlers_drop, "%u");
-IEEE80211_LOCAL_ATTR(rx_handlers_queued, rx_handlers_queued, "%u");
-IEEE80211_LOCAL_ATTR(rx_handlers_drop_nullfunc, rx_handlers_drop_nullfunc, "%u");
-IEEE80211_LOCAL_ATTR(rx_handlers_drop_defrag, rx_handlers_drop_defrag, "%u");
-IEEE80211_LOCAL_ATTR(rx_handlers_drop_short, rx_handlers_drop_short, "%u");
-IEEE80211_LOCAL_ATTR(rx_handlers_drop_passive_scan, rx_handlers_drop_passive_scan, "%u");
-IEEE80211_LOCAL_ATTR(tx_expand_skb_head, tx_expand_skb_head, "%u");
-IEEE80211_LOCAL_ATTR(tx_expand_skb_head_cloned, tx_expand_skb_head_cloned, "%u");
-IEEE80211_LOCAL_ATTR(rx_expand_skb_head, rx_expand_skb_head, "%u");
-IEEE80211_LOCAL_ATTR(rx_expand_skb_head2, rx_expand_skb_head2, "%u");
-IEEE80211_LOCAL_ATTR(rx_handlers_fragments, rx_handlers_fragments, "%u");
-IEEE80211_LOCAL_ATTR(tx_status_drop, tx_status_drop, "%u");
-
-static ssize_t ieee80211_local_fmt_wme_rx_queue(struct ieee80211_local *local,
- char *buf)
-{
- int i;
- char *p = buf;
-
- for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
- p += sprintf(p, "%u\n", local->wme_rx_queue[i]);
- return (p - buf);
-}
-__IEEE80211_LOCAL_SHOW(wme_rx_queue);
-static CLASS_DEVICE_ATTR(wme_rx_queue, S_IRUGO,
- ieee80211_local_show_wme_rx_queue, NULL);
-
-static ssize_t ieee80211_local_fmt_wme_tx_queue(struct ieee80211_local *local,
- char *buf)
-{
- int i;
- char *p = buf;
-
- for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
- p += sprintf(p, "%u\n", local->wme_tx_queue[i]);
- return (p - buf);
-}
-__IEEE80211_LOCAL_SHOW(wme_tx_queue);
-static CLASS_DEVICE_ATTR(wme_tx_queue, S_IRUGO,
- ieee80211_local_show_wme_tx_queue, NULL);
-#endif
-
-static ssize_t ieee80211_stats_show(struct class_device *dev, char *buf,
- ssize_t (*format)(struct ieee80211_low_level_stats *, char *))
-{
- struct ieee80211_local *local = to_ieee80211_local(dev);
- struct ieee80211_low_level_stats stats;
- ssize_t ret = -EINVAL;
-
- if (!local->ops->get_stats)
- return -EOPNOTSUPP;
- ret = rtnl_lock_local(local);
- if (ret)
- return ret;
- ret = local->ops->get_stats(local_to_hw(local), &stats);
- rtnl_unlock();
- if (!ret)
- ret = (*format)(&stats, buf);
- return ret;
-}
-
-#define IEEE80211_STATS_FMT(name, field, format_string) \
-static ssize_t ieee80211_stats_fmt_##name(struct ieee80211_low_level_stats \
- *stats, char *buf) \
-{ \
- return sprintf(buf, format_string, stats->field); \
-}
-
-#define __IEEE80211_STATS_SHOW(name) \
-static ssize_t ieee80211_stats_show_##name(struct class_device *cd, \
- char *buf) \
-{ \
- return ieee80211_stats_show(cd, buf, \
- ieee80211_stats_fmt_##name); \
-}
-
-#define IEEE80211_STATS_ATTR(name, field, format) \
-IEEE80211_STATS_FMT(name, field, format "\n") \
-__IEEE80211_STATS_SHOW(name) \
-static CLASS_DEVICE_ATTR(name, S_IRUGO, ieee80211_stats_show_##name, NULL);
-
-IEEE80211_STATS_ATTR(ack_failure_count, dot11ACKFailureCount, "%u");
-IEEE80211_STATS_ATTR(rts_failure_count, dot11RTSFailureCount, "%u");
-IEEE80211_STATS_ATTR(fcs_error_count, dot11FCSErrorCount, "%u");
-IEEE80211_STATS_ATTR(rts_success_count, dot11RTSSuccessCount, "%u");
-
-static struct attribute *ieee80211_stats_attrs[] = {
- &class_device_attr_transmitted_fragment_count.attr,
- &class_device_attr_multicast_transmitted_frame_count.attr,
- &class_device_attr_failed_count.attr,
- &class_device_attr_retry_count.attr,
- &class_device_attr_multiple_retry_count.attr,
- &class_device_attr_frame_duplicate_count.attr,
- &class_device_attr_received_fragment_count.attr,
- &class_device_attr_multicast_received_frame_count.attr,
- &class_device_attr_transmitted_frame_count.attr,
- &class_device_attr_wep_undecryptable_count.attr,
- &class_device_attr_ack_failure_count.attr,
- &class_device_attr_rts_failure_count.attr,
- &class_device_attr_fcs_error_count.attr,
- &class_device_attr_rts_success_count.attr,
- &class_device_attr_num_scans.attr,
-#ifdef CONFIG_D80211_DEBUG_COUNTERS
- &class_device_attr_tx_handlers_drop.attr,
- &class_device_attr_tx_handlers_queued.attr,
- &class_device_attr_tx_handlers_drop_unencrypted.attr,
- &class_device_attr_tx_handlers_drop_fragment.attr,
- &class_device_attr_tx_handlers_drop_wep.attr,
- &class_device_attr_tx_handlers_drop_not_assoc.attr,
- &class_device_attr_tx_handlers_drop_unauth_port.attr,
- &class_device_attr_rx_handlers_drop.attr,
- &class_device_attr_rx_handlers_queued.attr,
- &class_device_attr_rx_handlers_drop_nullfunc.attr,
- &class_device_attr_rx_handlers_drop_defrag.attr,
- &class_device_attr_rx_handlers_drop_short.attr,
- &class_device_attr_rx_handlers_drop_passive_scan.attr,
- &class_device_attr_tx_expand_skb_head.attr,
- &class_device_attr_tx_expand_skb_head_cloned.attr,
- &class_device_attr_rx_expand_skb_head.attr,
- &class_device_attr_rx_expand_skb_head2.attr,
- &class_device_attr_rx_handlers_fragments.attr,
- &class_device_attr_tx_status_drop.attr,
- &class_device_attr_wme_rx_queue.attr,
- &class_device_attr_wme_tx_queue.attr,
-#endif
- NULL,
-};
-
-static struct attribute_group ieee80211_stats_group = {
- .name = "statistics",
- .attrs = ieee80211_stats_attrs,
-};
-
-/* attributes in /sys/class/net/X/ */
-
-static ssize_t ieee80211_if_show(struct class_device *cd, char *buf,
- ssize_t (*format)(const struct ieee80211_sub_if_data *,
- char *))
-{
- struct net_device *dev = to_net_dev(cd);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- ssize_t ret = -EINVAL;
-
- read_lock(&dev_base_lock);
- if (dev->reg_state == NETREG_REGISTERED) {
- ret = (*format)(sdata, buf);
- }
- 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) \
-{ \
- return sprintf(buf, 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) \
-{ \
- return sprintf(buf, "%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) \
-{ \
- return sprintf(buf, MAC_FMT "\n", MAC_ARG(sdata->field)); \
-}
-
-#define __IEEE80211_IF_SHOW(name) \
-static ssize_t ieee80211_if_show_##name(struct class_device *cd, \
- char *buf) \
-{ \
- return ieee80211_if_show(cd, buf, ieee80211_if_fmt_##name); \
-} \
-static CLASS_DEVICE_ATTR(name, S_IRUGO, ieee80211_if_show_##name, NULL);
-
-#define IEEE80211_IF_SHOW(name, field, format) \
- IEEE80211_IF_FMT_##format(name, field) \
- __IEEE80211_IF_SHOW(name)
-
-/* common attributes */
-IEEE80211_IF_SHOW(channel_use, channel_use, DEC);
-IEEE80211_IF_SHOW(drop_unencrypted, drop_unencrypted, DEC);
-IEEE80211_IF_SHOW(eapol, eapol, DEC);
-IEEE80211_IF_SHOW(ieee8021_x, ieee802_1x, DEC);
-
-/* STA/IBSS attributes */
-IEEE80211_IF_SHOW(state, u.sta.state, DEC);
-IEEE80211_IF_SHOW(bssid, u.sta.bssid, MAC);
-IEEE80211_IF_SHOW(prev_bssid, u.sta.prev_bssid, MAC);
-IEEE80211_IF_SHOW(ssid_len, u.sta.ssid_len, SIZE);
-IEEE80211_IF_SHOW(aid, u.sta.aid, DEC);
-IEEE80211_IF_SHOW(ap_capab, u.sta.ap_capab, HEX);
-IEEE80211_IF_SHOW(capab, u.sta.capab, HEX);
-IEEE80211_IF_SHOW(extra_ie_len, u.sta.extra_ie_len, SIZE);
-IEEE80211_IF_SHOW(auth_tries, u.sta.auth_tries, DEC);
-IEEE80211_IF_SHOW(assoc_tries, u.sta.assoc_tries, DEC);
-IEEE80211_IF_SHOW(auth_algs, u.sta.auth_algs, HEX);
-IEEE80211_IF_SHOW(auth_alg, u.sta.auth_alg, DEC);
-IEEE80211_IF_SHOW(auth_transaction, u.sta.auth_transaction, DEC);
-
-static ssize_t ieee80211_if_fmt_flags(const struct
- ieee80211_sub_if_data *sdata, char *buf)
-{
- return sprintf(buf, "%s%s%s%s%s%s%s\n",
- sdata->u.sta.ssid_set ? "SSID\n" : "",
- sdata->u.sta.bssid_set ? "BSSID\n" : "",
- sdata->u.sta.prev_bssid_set ? "prev BSSID\n" : "",
- sdata->u.sta.authenticated ? "AUTH\n" : "",
- sdata->u.sta.associated ? "ASSOC\n" : "",
- sdata->u.sta.probereq_poll ? "PROBEREQ POLL\n" : "",
- sdata->u.sta.use_protection ? "CTS prot\n" : "");
-}
-__IEEE80211_IF_SHOW(flags);
-
-/* AP attributes */
-IEEE80211_IF_SHOW(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
-IEEE80211_IF_SHOW(dtim_period, u.ap.dtim_period, DEC);
-IEEE80211_IF_SHOW(dtim_count, u.ap.dtim_count, DEC);
-IEEE80211_IF_SHOW(num_beacons, u.ap.num_beacons, DEC);
-IEEE80211_IF_SHOW(force_unicast_rateidx, u.ap.force_unicast_rateidx, DEC);
-IEEE80211_IF_SHOW(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)
-{
- return sprintf(buf, "%u\n", skb_queue_len(&sdata->u.ap.ps_bc_buf));
-}
-__IEEE80211_IF_SHOW(num_buffered_multicast);
-
-static ssize_t ieee80211_if_fmt_beacon_head_len(const struct
- ieee80211_sub_if_data *sdata, char *buf)
-{
- if (sdata->u.ap.beacon_head)
- return sprintf(buf, "%d\n", sdata->u.ap.beacon_head_len);
- return sprintf(buf, "\n");
-}
-__IEEE80211_IF_SHOW(beacon_head_len);
-
-static ssize_t ieee80211_if_fmt_beacon_tail_len(const struct
- ieee80211_sub_if_data *sdata, char *buf)
-{
- if (sdata->u.ap.beacon_tail)
- return sprintf(buf, "%d\n", sdata->u.ap.beacon_tail_len);
- return sprintf(buf, "\n");
-}
-__IEEE80211_IF_SHOW(beacon_tail_len);
-
-/* WDS attributes */
-IEEE80211_IF_SHOW(peer, u.wds.remote_addr, MAC);
-
-/* VLAN attributes */
-IEEE80211_IF_SHOW(vlan_id, u.vlan.id, DEC);
-
-/* MONITOR attributes */
-static ssize_t ieee80211_if_fmt_mode(const struct
- ieee80211_sub_if_data *sdata, char *buf)
-{
- struct ieee80211_local *local = sdata->local;
-
- return sprintf(buf, "%s\n",
- ((local->hw.flags & IEEE80211_HW_MONITOR_DURING_OPER) ||
- local->open_count == local->monitors) ?
- "hard" : "soft");
-}
-__IEEE80211_IF_SHOW(mode);
-
-static struct attribute *ieee80211_sta_attrs[] = {
- &class_device_attr_channel_use.attr,
- &class_device_attr_drop_unencrypted.attr,
- &class_device_attr_eapol.attr,
- &class_device_attr_ieee8021_x.attr,
- &class_device_attr_state.attr,
- &class_device_attr_bssid.attr,
- &class_device_attr_prev_bssid.attr,
- &class_device_attr_ssid_len.attr,
- &class_device_attr_aid.attr,
- &class_device_attr_ap_capab.attr,
- &class_device_attr_capab.attr,
- &class_device_attr_extra_ie_len.attr,
- &class_device_attr_auth_tries.attr,
- &class_device_attr_assoc_tries.attr,
- &class_device_attr_auth_algs.attr,
- &class_device_attr_auth_alg.attr,
- &class_device_attr_auth_transaction.attr,
- &class_device_attr_flags.attr,
- NULL
-};
-
-static struct attribute *ieee80211_ap_attrs[] = {
- &class_device_attr_channel_use.attr,
- &class_device_attr_drop_unencrypted.attr,
- &class_device_attr_eapol.attr,
- &class_device_attr_ieee8021_x.attr,
- &class_device_attr_num_sta_ps.attr,
- &class_device_attr_dtim_period.attr,
- &class_device_attr_dtim_count.attr,
- &class_device_attr_num_beacons.attr,
- &class_device_attr_force_unicast_rateidx.attr,
- &class_device_attr_max_ratectrl_rateidx.attr,
- &class_device_attr_num_buffered_multicast.attr,
- &class_device_attr_beacon_head_len.attr,
- &class_device_attr_beacon_tail_len.attr,
- NULL
-};
-
-static struct attribute *ieee80211_wds_attrs[] = {
- &class_device_attr_channel_use.attr,
- &class_device_attr_drop_unencrypted.attr,
- &class_device_attr_eapol.attr,
- &class_device_attr_ieee8021_x.attr,
- &class_device_attr_peer.attr,
- NULL
-};
-
-static struct attribute *ieee80211_vlan_attrs[] = {
- &class_device_attr_channel_use.attr,
- &class_device_attr_drop_unencrypted.attr,
- &class_device_attr_eapol.attr,
- &class_device_attr_ieee8021_x.attr,
- &class_device_attr_vlan_id.attr,
- NULL
-};
-
-static struct attribute *ieee80211_monitor_attrs[] = {
- &class_device_attr_mode.attr,
- NULL
-};
-
-static struct attribute_group ieee80211_sta_group = {
- .name = "sta",
- .attrs = ieee80211_sta_attrs,
-};
-
-static struct attribute_group ieee80211_ap_group = {
- .name = "ap",
- .attrs = ieee80211_ap_attrs,
-};
-
-static struct attribute_group ieee80211_wds_group = {
- .name = "wds",
- .attrs = ieee80211_wds_attrs,
-};
-
-static struct attribute_group ieee80211_vlan_group = {
- .name = "vlan",
- .attrs = ieee80211_vlan_attrs,
-};
-
-static struct attribute_group ieee80211_monitor_group = {
- .name = "monitor",
- .attrs = ieee80211_monitor_attrs,
-};
-
-/* /sys/class/ieee80211/phyX functions */
-
-static void ieee80211_class_dev_release(struct class_device *dev)
-{
- ieee80211_release_hw(to_ieee80211_local(dev));
-}
-
-#ifdef CONFIG_HOTPLUG
-static int ieee80211_uevent(struct class_device *cd, char **envp,
- int num_envp, char *buf, int size)
-{
- struct ieee80211_local *local = to_ieee80211_local(cd);
-
- if (num_envp < 2)
- return -ENOMEM;
- envp[0] = buf;
- if (snprintf(buf, size, "IEEE80211_DEV=phy%d",
- local->hw.index) + 1 >= size)
- return -ENOMEM;
- envp[1] = NULL;
- return 0;
-}
-#endif
-
-static struct class ieee80211_class = {
- .name = "ieee80211",
- .class_dev_attrs = ieee80211_class_dev_attrs,
- .release = ieee80211_class_dev_release,
-#ifdef CONFIG_HOTPLUG
- .uevent = ieee80211_uevent,
-#endif
-};
-
-void ieee80211_dev_sysfs_init(struct ieee80211_local *local)
-{
- local->class_dev.class = &ieee80211_class;
- local->class_dev.class_data = local;
- class_device_initialize(&local->class_dev);
-}
-
-void ieee80211_dev_sysfs_put(struct ieee80211_local *local)
-{
- class_device_put(&local->class_dev);
-}
-
-int ieee80211_dev_sysfs_add(struct ieee80211_local *local)
-{
- int res;
-
- snprintf(local->class_dev.class_id, BUS_ID_SIZE,
- "phy%d", local->hw.index);
- res = class_device_add(&local->class_dev);
- if (res)
- return res;
- res = sysfs_create_group(&local->class_dev.kobj,
- &ieee80211_stats_group);
- if (res)
- class_device_del(&local->class_dev);
- return res;
-}
-
-void ieee80211_dev_sysfs_del(struct ieee80211_local *local)
-{
- sysfs_remove_group(&local->class_dev.kobj, &ieee80211_stats_group);
- class_device_del(&local->class_dev);
-}
-
-/* /sys/class/net/X functions */
-
-static void __ieee80211_remove_if_group(struct kobject *kobj,
- struct ieee80211_sub_if_data *sdata)
-{
- if (sdata->sysfs_group) {
- sysfs_remove_group(kobj, sdata->sysfs_group);
- sdata->sysfs_group = NULL;
- }
-}
-
-static inline void ieee80211_remove_if_group(struct kobject *kobj,
- struct net_device *dev)
-{
- __ieee80211_remove_if_group(kobj, IEEE80211_DEV_TO_SUB_IF(dev));
-}
-
-static int ieee80211_add_if_group(struct kobject *kobj,
- struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- int res = 0;
-
- __ieee80211_remove_if_group(kobj, sdata);
- switch (sdata->type) {
- case IEEE80211_IF_TYPE_STA:
- sdata->sysfs_group = &ieee80211_sta_group;
- break;
- case IEEE80211_IF_TYPE_AP:
- sdata->sysfs_group = &ieee80211_ap_group;
- break;
- case IEEE80211_IF_TYPE_WDS:
- sdata->sysfs_group = &ieee80211_wds_group;
- break;
- case IEEE80211_IF_TYPE_VLAN:
- sdata->sysfs_group = &ieee80211_vlan_group;
- break;
- case IEEE80211_IF_TYPE_MNTR:
- sdata->sysfs_group = &ieee80211_monitor_group;
- break;
- default:
- goto out;
- }
- res = sysfs_create_group(kobj, sdata->sysfs_group);
- if (res)
- sdata->sysfs_group = NULL;
-out:
- return res;
-}
-
-int ieee80211_sysfs_change_if_type(struct net_device *dev)
-{
- return ieee80211_add_if_group(&dev->class_dev.kobj, dev);
-}
-
-int ieee80211_sysfs_add_netdevice(struct net_device *dev)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- int res;
-
- res = sysfs_create_link(&dev->class_dev.kobj, &local->class_dev.kobj,
- "hw");
- if (res)
- goto err_out;
- res = ieee80211_add_if_group(&dev->class_dev.kobj, dev);
- if (res)
- goto err_link;
- res = ieee80211_key_kset_sysfs_register(IEEE80211_DEV_TO_SUB_IF(dev));
- return res;
-
-err_link:
- sysfs_remove_link(&dev->class_dev.kobj, "hw");
-err_out:
- return res;
-}
-
-void ieee80211_sysfs_remove_netdevice(struct net_device *dev)
-{
- ieee80211_key_kset_sysfs_unregister(IEEE80211_DEV_TO_SUB_IF(dev));
- ieee80211_remove_if_group(&dev->class_dev.kobj, dev);
- sysfs_remove_link(&dev->class_dev.kobj, "hw");
-}
-
-/* general module functions */
-
-int ieee80211_sysfs_init(void)
-{
- return class_register(&ieee80211_class);
-}
-
-void ieee80211_sysfs_deinit(void)
-{
- class_unregister(&ieee80211_class);
-}
+++ /dev/null
-/*
- * Copyright 2003-2005, 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.
- */
-
-#include <linux/kobject.h>
-#include <linux/sysfs.h>
-#include "ieee80211_i.h"
-#include "ieee80211_key.h"
-#include "sta_info.h"
-
-static ssize_t sta_sysfs_show(struct kobject *, struct attribute *, char *);
-static ssize_t key_sysfs_show(struct kobject *, struct attribute *, char *);
-
-static struct sysfs_ops sta_ktype_ops = {
- .show = sta_sysfs_show,
-};
-
-static struct sysfs_ops key_ktype_ops = {
- .show = key_sysfs_show,
-};
-
-/* sta attributtes */
-
-#define STA_SHOW(name, field, format_string) \
-static ssize_t show_sta_##name(const struct sta_info *sta, char *buf) \
-{ \
- return sprintf(buf, format_string, sta->field); \
-}
-#define STA_SHOW_D(name, field) STA_SHOW(name, field, "%d\n")
-#define STA_SHOW_U(name, field) STA_SHOW(name, field, "%u\n")
-#define STA_SHOW_LU(name, field) STA_SHOW(name, field, "%lu\n")
-#define STA_SHOW_S(name, field) STA_SHOW(name, field, "%s\n")
-
-#define STA_SHOW_RATE(name, field) \
-static ssize_t show_sta_##name(const struct sta_info *sta, char *buf) \
-{ \
- struct ieee80211_local *local = sta->dev->ieee80211_ptr; \
- return sprintf(buf, "%d\n", \
- (sta->field >= 0 && \
- sta->field < local->num_curr_rates) ? \
- local->curr_rates[sta->field].rate : -1); \
-}
-
-#define __STA_ATTR(name) \
-static struct sta_attribute sta_attr_##name = \
- __ATTR(name, S_IRUGO, show_sta_##name, NULL)
-
-#define STA_ATTR(name, field, format) \
- STA_SHOW_##format(name, field) \
- __STA_ATTR(name)
-
-STA_ATTR(aid, aid, D);
-STA_ATTR(key_idx_compression, key_idx_compression, D);
-STA_ATTR(dev, dev->name, S);
-STA_ATTR(vlan_id, vlan_id, D);
-STA_ATTR(rx_packets, rx_packets, LU);
-STA_ATTR(tx_packets, tx_packets, LU);
-STA_ATTR(rx_bytes, rx_bytes, LU);
-STA_ATTR(tx_bytes, tx_bytes, LU);
-STA_ATTR(rx_duplicates, num_duplicates, LU);
-STA_ATTR(rx_fragments, rx_fragments, LU);
-STA_ATTR(rx_dropped, rx_dropped, LU);
-STA_ATTR(tx_fragments, tx_fragments, LU);
-STA_ATTR(tx_filtered, tx_filtered_count, LU);
-STA_ATTR(txrate, txrate, RATE);
-STA_ATTR(last_txrate, last_txrate, RATE);
-STA_ATTR(tx_retry_failed, tx_retry_failed, LU);
-STA_ATTR(tx_retry_count, tx_retry_count, LU);
-STA_ATTR(last_rssi, last_rssi, D);
-STA_ATTR(last_signal, last_signal, D);
-STA_ATTR(last_noise, last_noise, D);
-STA_ATTR(channel_use, channel_use, D);
-STA_ATTR(wep_weak_iv_count, wep_weak_iv_count, D);
-
-static ssize_t show_sta_flags(const struct sta_info *sta, char *buf)
-{
- return sprintf(buf, "%s%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_PERM ? "PERM\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" : "");
-}
-__STA_ATTR(flags);
-
-static ssize_t show_sta_num_ps_buf_frames(const struct sta_info *sta, char *buf)
-{
- return sprintf(buf, "%u\n", skb_queue_len(&sta->ps_tx_buf));
-}
-__STA_ATTR(num_ps_buf_frames);
-
-static ssize_t show_sta_last_ack_rssi(const struct sta_info *sta, char *buf)
-{
- return sprintf(buf, "%d %d %d\n", sta->last_ack_rssi[0],
- sta->last_ack_rssi[1], sta->last_ack_rssi[2]);
-}
-__STA_ATTR(last_ack_rssi);
-
-static ssize_t show_sta_last_ack_ms(const struct sta_info *sta, char *buf)
-{
- return sprintf(buf, "%d\n", sta->last_ack ?
- jiffies_to_msecs(jiffies - sta->last_ack) : -1);
-}
-__STA_ATTR(last_ack_ms);
-
-static ssize_t show_sta_inactive_ms(const struct sta_info *sta, char *buf)
-{
- return sprintf(buf, "%d\n", jiffies_to_msecs(jiffies - sta->last_rx));
-}
-__STA_ATTR(inactive_ms);
-
-static ssize_t show_sta_last_seq_ctrl(const struct sta_info *sta, char *buf)
-{
- int i;
- char *p = buf;
-
- for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
- p += sprintf(p, "%x ", sta->last_seq_ctrl[i]);
- p += sprintf(p, "\n");
- return (p - buf);
-}
-__STA_ATTR(last_seq_ctrl);
-
-#ifdef CONFIG_D80211_DEBUG_COUNTERS
-static ssize_t show_sta_wme_rx_queue(const struct sta_info *sta, char *buf)
-{
- int i;
- char *p = buf;
-
- for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
- p += sprintf(p, "%u ", sta->wme_rx_queue[i]);
- p += sprintf(p, "\n");
- return (p - buf);
-}
-__STA_ATTR(wme_rx_queue);
-
-static ssize_t show_sta_wme_tx_queue(const struct sta_info *sta, char *buf)
-{
- int i;
- char *p = buf;
-
- for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
- p += sprintf(p, "%u ", sta->wme_tx_queue[i]);
- p += sprintf(p, "\n");
- return (p - buf);
-}
-__STA_ATTR(wme_tx_queue);
-#endif
-
-static struct attribute *sta_ktype_attrs[] = {
- &sta_attr_aid.attr,
- &sta_attr_key_idx_compression.attr,
- &sta_attr_dev.attr,
- &sta_attr_vlan_id.attr,
- &sta_attr_rx_packets.attr,
- &sta_attr_tx_packets.attr,
- &sta_attr_rx_bytes.attr,
- &sta_attr_tx_bytes.attr,
- &sta_attr_rx_duplicates.attr,
- &sta_attr_rx_fragments.attr,
- &sta_attr_rx_dropped.attr,
- &sta_attr_tx_fragments.attr,
- &sta_attr_tx_filtered.attr,
- &sta_attr_txrate.attr,
- &sta_attr_last_txrate.attr,
- &sta_attr_tx_retry_failed.attr,
- &sta_attr_tx_retry_count.attr,
- &sta_attr_last_rssi.attr,
- &sta_attr_last_signal.attr,
- &sta_attr_last_noise.attr,
- &sta_attr_channel_use.attr,
- &sta_attr_wep_weak_iv_count.attr,
-
- &sta_attr_flags.attr,
- &sta_attr_num_ps_buf_frames.attr,
- &sta_attr_last_ack_rssi.attr,
- &sta_attr_last_ack_ms.attr,
- &sta_attr_inactive_ms.attr,
- &sta_attr_last_seq_ctrl.attr,
-#ifdef CONFIG_D80211_DEBUG_COUNTERS
- &sta_attr_wme_rx_queue.attr,
- &sta_attr_wme_tx_queue.attr,
-#endif
- NULL
-};
-
-/* keys attributtes */
-
-struct key_attribute {
- struct attribute attr;
- ssize_t (*show)(const struct ieee80211_key *, char *buf);
- ssize_t (*store)(struct ieee80211_key *, const char *buf,
- size_t count);
-};
-
-#define KEY_SHOW(name, field, format_string) \
-static ssize_t show_key_##name(const struct ieee80211_key *key, char *buf)\
-{ \
- return sprintf(buf, format_string, key->field); \
-}
-#define KEY_SHOW_D(name, field) KEY_SHOW(name, field, "%d\n")
-
-#define __KEY_ATTR(name) \
-static struct key_attribute key_attr_##name = \
- __ATTR(name, S_IRUSR, show_key_##name, NULL)
-
-#define KEY_ATTR(name, field, format) \
- KEY_SHOW_##format(name, field) \
- __KEY_ATTR(name)
-
-KEY_ATTR(length, keylen, D);
-KEY_ATTR(sw_encrypt, force_sw_encrypt, D);
-KEY_ATTR(index, keyidx, D);
-KEY_ATTR(hw_index, hw_key_idx, D);
-KEY_ATTR(tx_rx_count, tx_rx_count, D);
-
-static ssize_t show_key_algorithm(const struct ieee80211_key *key, char *buf)
-{
- char *alg;
-
- switch (key->alg) {
- case ALG_WEP:
- alg = "WEP";
- break;
- case ALG_TKIP:
- alg = "TKIP";
- break;
- case ALG_CCMP:
- alg = "CCMP";
- break;
- default:
- return 0;
- }
- return sprintf(buf, "%s\n", alg);
-}
-__KEY_ATTR(algorithm);
-
-static ssize_t show_key_tx_spec(const struct ieee80211_key *key, char *buf)
-{
- const u8 *tpn;
-
- switch (key->alg) {
- case ALG_WEP:
- return sprintf(buf, "\n");
- case ALG_TKIP:
- return sprintf(buf, "%08x %04x\n", key->u.tkip.iv32,
- key->u.tkip.iv16);
- case ALG_CCMP:
- tpn = key->u.ccmp.tx_pn;
- return sprintf(buf, "%02x%02x%02x%02x%02x%02x\n", tpn[0],
- tpn[1], tpn[2], tpn[3], tpn[4], tpn[5]);
- default:
- return 0;
- }
-}
-__KEY_ATTR(tx_spec);
-
-static ssize_t show_key_rx_spec(const struct ieee80211_key *key, char *buf)
-{
- int i;
- const u8 *rpn;
- char *p = buf;
-
- switch (key->alg) {
- case ALG_WEP:
- return sprintf(buf, "\n");
- case ALG_TKIP:
- for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
- p += sprintf(p, "%08x %04x\n",
- key->u.tkip.iv32_rx[i],
- key->u.tkip.iv16_rx[i]);
- return (p - buf);
- case ALG_CCMP:
- for (i = 0; i < NUM_RX_DATA_QUEUES; i++) {
- rpn = key->u.ccmp.rx_pn[i];
- p += sprintf(p, "%02x%02x%02x%02x%02x%02x\n", rpn[0],
- rpn[1], rpn[2], rpn[3], rpn[4], rpn[5]);
- }
- return (p - buf);
- default:
- return 0;
- }
-}
-__KEY_ATTR(rx_spec);
-
-static ssize_t show_key_replays(const struct ieee80211_key *key, char *buf)
-{
- if (key->alg != ALG_CCMP)
- return 0;
- return sprintf(buf, "%u\n", key->u.ccmp.replays);
-}
-__KEY_ATTR(replays);
-
-static ssize_t show_key_key(const struct ieee80211_key *key, char *buf)
-{
- int i;
- char *p = buf;
-
- for (i = 0; i < key->keylen; i++)
- p += sprintf(p, "%02x", key->key[i]);
- p += sprintf(p, "\n");
- return (p - buf);
-}
-__KEY_ATTR(key);
-
-static struct attribute *key_ktype_attrs[] = {
- &key_attr_length.attr,
- &key_attr_sw_encrypt.attr,
- &key_attr_index.attr,
- &key_attr_hw_index.attr,
- &key_attr_tx_rx_count.attr,
- &key_attr_algorithm.attr,
- &key_attr_tx_spec.attr,
- &key_attr_rx_spec.attr,
- &key_attr_replays.attr,
- &key_attr_key.attr,
- NULL
-};
-
-/* structures and functions */
-
-static struct kobj_type sta_ktype = {
- .release = sta_info_release,
- .sysfs_ops = &sta_ktype_ops,
- .default_attrs = sta_ktype_attrs,
-};
-
-static struct kobj_type key_ktype = {
- .release = ieee80211_key_release,
- .sysfs_ops = &key_ktype_ops,
- .default_attrs = key_ktype_attrs,
-};
-
-static ssize_t sta_sysfs_show(struct kobject *kobj, struct attribute *attr,
- char *buf)
-{
- struct sta_attribute *sta_attr;
- struct sta_info *sta;
-
- sta_attr = container_of(attr, struct sta_attribute, attr);
- sta = container_of(kobj, struct sta_info, kobj);
- return sta_attr->show(sta, buf);
-}
-
-static ssize_t key_sysfs_show(struct kobject *kobj, struct attribute *attr,
- char *buf)
-{
- struct key_attribute *key_attr;
- struct ieee80211_key *key;
-
- key_attr = container_of(attr, struct key_attribute, attr);
- key = container_of(kobj, struct ieee80211_key, kobj);
- return key_attr->show(key, buf);
-}
-
-int ieee80211_sta_kset_sysfs_register(struct ieee80211_local *local)
-{
- int res;
-
- res = kobject_set_name(&local->sta_kset.kobj, "sta");
- if (res)
- return res;
- local->sta_kset.kobj.parent = &local->class_dev.kobj;
- local->sta_kset.ktype = &sta_ktype;
- return kset_register(&local->sta_kset);
-}
-
-void ieee80211_sta_kset_sysfs_unregister(struct ieee80211_local *local)
-{
- kset_unregister(&local->sta_kset);
-}
-
-int ieee80211_key_kset_sysfs_register(struct ieee80211_sub_if_data *sdata)
-{
- int res;
-
- res = kobject_set_name(&sdata->key_kset.kobj, "keys");
- if (res)
- return res;
- sdata->key_kset.kobj.parent = &sdata->dev->class_dev.kobj;
- sdata->key_kset.ktype = &key_ktype;
- return kset_register(&sdata->key_kset);
-}
-
-void ieee80211_key_kset_sysfs_unregister(struct ieee80211_sub_if_data *sdata)
-{
- kset_unregister(&sdata->key_kset);
-}
-
-int ieee80211_sta_sysfs_add(struct sta_info *sta)
-{
- return kobject_add(&sta->kobj);
-}
-
-void ieee80211_sta_sysfs_remove(struct sta_info *sta)
-{
- kobject_del(&sta->kobj);
-}
-
-void ieee80211_key_sysfs_set_kset(struct ieee80211_key *key, struct kset *kset)
-{
- key->kobj.kset = kset;
- if (!kset)
- key->kobj.ktype = &key_ktype;
-}
-
-int ieee80211_key_sysfs_add(struct ieee80211_key *key)
-{
- return kobject_add(&key->kobj);
-}
-
-void ieee80211_key_sysfs_remove(struct ieee80211_key *key)
-{
- if (key)
- kobject_del(&key->kobj);
-}
-
-int ieee80211_key_sysfs_add_default(struct ieee80211_sub_if_data *sdata)
-{
- return sysfs_create_link(&sdata->key_kset.kobj,
- &sdata->default_key->kobj, "default");
-}
-
-void ieee80211_key_sysfs_remove_default(struct ieee80211_sub_if_data *sdata)
-{
- sysfs_remove_link(&sdata->key_kset.kobj, "default");
-}
+++ /dev/null
-#ifndef __COMPAT_HACKS
-#define __COMPAT_HACKS
-
-#include <linux/types.h>
-#include <linux/workqueue.h>
-#include <net/sch_generic.h>
-
-struct delayed_work {
- struct work_struct work;
-};
-
-#define INIT_DELAYED_WORK(_work, _func) \
- INIT_WORK(&(_work)->work, _func, &(_work)->work)
-
-#define INIT_WORK_NEW(_work, _func) INIT_WORK(_work, _func, _work)
-
-#define schedule_delayed_work(_work, interval) schedule_delayed_work(&(_work)->work, interval)
-#define cancel_delayed_work(_work) cancel_delayed_work(&(_work)->work)
-
-static inline struct Qdisc *_qdisc_create_dflt(struct net_device *dev, struct Qdisc_ops *ops)
-{
- return qdisc_create_dflt(dev, ops);
-}
-
-#define qdisc_create_dflt(_dev, _ops, _handle) \
- _qdisc_create_dflt(_dev, _ops)
-
-#endif
+++ /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>
-
-#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_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 2346
-#define IEEE80211_MAX_RTS_THRESHOLD 2347
-#define IEEE80211_MAX_AID 2007
-#define IEEE80211_MAX_TIM_LEN 251
-#define IEEE80211_MAX_DATA_LEN 2304
-/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
- 6.2.1.1.2.
-
- The figure in section 7.1.2 suggests a body size of up to 2312
- bytes is allowed, which is a bit confusing, I suspect this
- represents the 2304 bytes of real data, plus a possible 8 bytes of
- WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
-
-
-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;
- } u;
- } __attribute__ ((packed)) action;
- } u;
-} __attribute__ ((packed));
-
-
-/* Authentication algorithms */
-#define WLAN_AUTH_OPEN 0
-#define WLAN_AUTH_SHARED_KEY 1
-#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)
-
-/* 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,
-};
-
-
-/* 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,
-};
-
-
-/* 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,
- /* 802.11h */
- 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,
- /* 802.11i */
- WLAN_EID_RSN = 48,
- WLAN_EID_WPA = 221,
- WLAN_EID_GENERIC = 221,
- WLAN_EID_VENDOR_SPECIFIC = 221,
- WLAN_EID_QOS_PARAMETER = 222
-};
-
-#endif /* IEEE80211_H */
+++ /dev/null
-/*
- * Low-level hardware driver -- IEEE 802.11 driver (80211.o) interface
- * 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 D80211_H
-#define D80211_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>
-
-/* Note! 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 tasklet (in
- * software interrupt context).
- */
-
-/*
- * Frame format used when passing frame between low-level hardware drivers
- * and IEEE 802.11 driver the same as used in the wireless media, i.e.,
- * buffers start with IEEE 802.11 header and include the same octets that
- * are sent over air.
- *
- * If hardware uses IEEE 802.3 headers (and perform 802.3 <-> 802.11
- * conversion in firmware), upper layer 802.11 code needs to be changed to
- * support this.
- *
- * If the receive frame format is not the same as the real frame sent
- * on the wireless media (e.g., due to padding etc.), upper layer 802.11 code
- * could be updated to provide support for such format assuming this would
- * optimize the performance, e.g., by removing need to re-allocation and
- * copying of the data.
- */
-
-/* Interface version (used for compatibility verification) */
-#define IEEE80211_VERSION 2
-
-
-#define IEEE80211_CHAN_W_SCAN 0x00000001
-#define IEEE80211_CHAN_W_ACTIVE_SCAN 0x00000002
-#define IEEE80211_CHAN_W_IBSS 0x00000004
-
-/* Channel information structure. Low-level driver is expected to fill in chan,
- * freq, and val fields. Other fields will be filled in by 80211.o based on
- * hostapd information and low-level driver does not need to use them. The
- * limits for each channel will be provided in 'struct ieee80211_conf' when
- * configuring the low-level driver with hw->config callback. */
-struct ieee80211_channel {
- short chan; /* channel number (IEEE 802.11) */
- short freq; /* frequency in MHz */
- int val; /* hw specific value for the channel */
- int flag; /* flag for hostapd use (IEEE80211_CHAN_*) */
- unsigned char power_level;
- unsigned char antenna_max;
-};
-
-#define IEEE80211_RATE_ERP 0x00000001
-#define IEEE80211_RATE_BASIC 0x00000002
-#define IEEE80211_RATE_PREAMBLE2 0x00000004
-#define IEEE80211_RATE_SUPPORTED 0x00000010
-#define IEEE80211_RATE_OFDM 0x00000020
-#define IEEE80211_RATE_CCK 0x00000040
-#define IEEE80211_RATE_TURBO 0x00000080
-#define IEEE80211_RATE_MANDATORY 0x00000100
-
-#define IEEE80211_RATE_CCK_2 (IEEE80211_RATE_CCK | IEEE80211_RATE_PREAMBLE2)
-#define IEEE80211_RATE_MODULATION(f) \
-(f & (IEEE80211_RATE_CCK | IEEE80211_RATE_OFDM))
-
-/* Low-level driver should set PREAMBLE2, OFDM, CCK, and TURBO flags.
- * BASIC, SUPPORTED, ERP, and MANDATORY flags are set in 80211.o based on the
- * configuration. */
-struct ieee80211_rate {
- int rate; /* rate in 100 kbps */
- int val; /* hw specific value for the rate */
- int flags; /* IEEE80211_RATE_ flags */
- int val2; /* hw specific value for the rate when using short preamble
- * (only when IEEE80211_RATE_PREAMBLE2 flag is set, i.e., for
- * 2, 5.5, and 11 Mbps) */
- signed char min_rssi_ack;
- unsigned char min_rssi_ack_delta;
-
- /* following fields are set by 80211.o and need not be filled by the
- * low-level driver */
- int rate_inv; /* inverse of the rate (LCM(all rates) / rate) for
- * optimizing channel utilization estimates */
-};
-
-/* 802.11g is backwards-compatible with 802.11b, so a wlan card can
- * actually be both in 11b and 11g modes at the same time. */
-enum {
- MODE_IEEE80211A = 0 /* IEEE 802.11a */,
- MODE_IEEE80211B = 1 /* IEEE 802.11b only */,
- MODE_ATHEROS_TURBO = 2 /* Atheros Turbo mode (2x.11a at 5 GHz) */,
- MODE_IEEE80211G = 3 /* IEEE 802.11g (and 802.11b compatibility) */,
- MODE_ATHEROS_TURBOG = 4 /* Atheros Turbo mode (2x.11g at 2.4 GHz) */,
- NUM_IEEE80211_MODES = 5
-};
-
-struct ieee80211_hw_mode {
- int mode; /* MODE_IEEE80211... */
- int num_channels; /* Number of channels (below) */
- struct ieee80211_channel *channels; /* Array of supported channels */
- int num_rates; /* Number of rates (below) */
- struct ieee80211_rate *rates; /* Array of supported rates */
-
- struct list_head list; /* Internal, don't touch */
-};
-
-struct ieee80211_tx_queue_params {
- int aifs; /* 0 .. 255; -1 = use default */
- int cw_min; /* 2^n-1: 1, 3, 7, .. , 1023; 0 = use default */
- int cw_max; /* 2^n-1: 1, 3, 7, .. , 1023; 0 = use default */
- int burst_time; /* maximum burst time in 0.1 ms (i.e., 10 = 1 ms);
- * 0 = disabled */
-};
-
-#define NUM_TX_DATA_QUEUES 6
-
-struct ieee80211_tx_queue_stats_data {
- unsigned int len; /* num packets in queue */
- unsigned int limit; /* queue len (soft) limit */
- unsigned int count; /* total num frames sent */
-};
-
-struct ieee80211_tx_queue_stats {
- struct ieee80211_tx_queue_stats_data data[NUM_TX_DATA_QUEUES];
-};
-
-#ifndef IEEE80211_TX_QUEUE_NUMS
-#define IEEE80211_TX_QUEUE_NUMS
-/* TODO: these need to be synchronized with hostapd_ioctl.h; make a shared
- * header file that can be included into low-level drivers, 80211.o, and
- * hostapd */
-enum {
- IEEE80211_TX_QUEUE_DATA0 = 0,
- IEEE80211_TX_QUEUE_DATA1 = 1,
- IEEE80211_TX_QUEUE_DATA2 = 2,
- IEEE80211_TX_QUEUE_DATA3 = 3,
- IEEE80211_TX_QUEUE_DATA4 = 4,
- IEEE80211_TX_QUEUE_SVP = 5,
- IEEE80211_TX_QUEUE_AFTER_BEACON = 6,
- IEEE80211_TX_QUEUE_BEACON = 7
-};
-#endif /* IEEE80211_TX_QUEUE_NUMS */
-
-
-struct ieee80211_low_level_stats {
- unsigned int dot11ACKFailureCount;
- unsigned int dot11RTSFailureCount;
- unsigned int dot11FCSErrorCount;
- unsigned int dot11RTSSuccessCount;
-};
-
-/* 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). */
-#define HW_KEY_IDX_INVALID -1
-
-struct ieee80211_tx_control {
- int tx_rate; /* Transmit rate, given as the hw specific value for the
- * rate (from struct ieee80211_rate) */
- int rts_cts_rate; /* Transmit rate for RTS/CTS frame, given as the hw
- * specific value for the rate (from
- * struct ieee80211_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_TKIP_NEW_PHASE1_KEY (1<<9)
- u32 flags; /* tx control flags defined
- * above */
- u16 rts_cts_duration; /* duration field for RTS/CTS frame */
- u8 retry_limit; /* 1 = only first attempt, 2 = one retry, .. */
- u8 power_level; /* per-packet transmit power level, in dBm */
- u8 antenna_sel; /* 0 = default/diversity, 1 = Ant0, 2 = Ant1 */
- s8 key_idx; /* -1 = do not encrypt, >= 0 keyidx from
- * hw->set_key() */
- u8 icv_len; /* length of the ICV/MIC field in octets */
- u8 iv_len; /* length of the IV field in octets */
- u8 tkip_key[16]; /* generated phase2/phase1 key for hw TKIP */
- u8 queue; /* hardware queue to use for this frame;
- * 0 = highest, hw->queues-1 = lowest */
- u8 sw_retry_attempt; /* number of times hw has tried to
- * transmit frame (not incl. hw retries) */
-
- int rateidx; /* internal 80211.o rateidx */
- int alt_retry_rate; /* retry rate for the last retries, given as the
- * hw specific value for the rate (from
- * struct ieee80211_rate). To be used to limit
- * packet dropping when probing higher rates, if hw
- * supports multiple retry rates. -1 = not used */
- int type; /* internal */
- int ifindex; /* internal */
-};
-
-#define RX_FLAG_MMIC_ERROR 0x1
-#define RX_FLAG_DECRYPTED 0x2
-
-/* Receive status. The low-level driver should provide this information
- * (the subset supported by hardware) to the 802.11 code with each received
- * frame. */
-struct ieee80211_rx_status {
- u64 hosttime;
- u64 mactime;
- int freq; /* receive frequency in Mhz */
- int channel;
- int phymode;
- int ssi;
- int signal;
- int noise;
- int antenna;
- int rate;
- int flag;
-};
-
-/* Transmit status. The low-level driver should provide this information
- * (the subset supported by hardware) to the 802.11 code for each transmit
- * frame. */
-struct ieee80211_tx_status {
- /* copied ieee80211_tx_control structure */
- struct ieee80211_tx_control control;
-
-#define IEEE80211_TX_STATUS_TX_FILTERED (1<<0)
-#define IEEE80211_TX_STATUS_ACK (1<<1) /* whether the TX frame was ACKed */
- u32 flags; /* tx staus flags defined above */
-
- int ack_signal; /* measured signal strength of the ACK frame */
- int excessive_retries;
- int retry_count;
-
- int queue_length; /* information about TX queue */
- int queue_number;
-};
-
-
-/**
- * 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.
- */
-struct ieee80211_conf {
- int channel; /* IEEE 802.11 channel number */
- int freq; /* MHz */
- int channel_val; /* hw specific value for the channel */
-
- int phymode; /* MODE_IEEE80211A, .. */
- unsigned int regulatory_domain;
- int radio_enabled;
-
- int beacon_int;
-
-#define IEEE80211_CONF_SHORT_SLOT_TIME (1<<0) /* use IEEE 802.11g Short Slot
- * Time */
-#define IEEE80211_CONF_SSID_HIDDEN (1<<1) /* do not broadcast the ssid */
- u32 flags; /* configuration flags defined above */
-
- u8 power_level; /* transmit power limit for current
- * regulatory domain; in dBm */
- u8 antenna_max; /* maximum antenna gain */
- short tx_power_reduction; /* in 0.1 dBm */
-
- int antenna_sel; /* default antenna conf:
- * 0 = default/diversity,
- * 1 = Ant0,
- * 2 = Ant1 */
-
- int antenna_def;
- int antenna_mode;
-
- /* Following five fields are used for IEEE 802.11H */
- unsigned int radar_detect;
- unsigned int spect_mgmt;
- unsigned int quiet_duration; /* duration of quiet period */
- unsigned int quiet_offset; /* how far into the beacon is the quiet
- * period */
- unsigned int quiet_period;
- u8 radar_firpwr_threshold;
- u8 radar_rssi_threshold;
- u8 pulse_height_threshold;
- u8 pulse_rssi_threshold;
- u8 pulse_inband_threshold;
-};
-
-/**
- * enum ieee80211_if_types - types of 802.11 network interfaces
- *
- * @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: not used.
- */
-enum ieee80211_if_types {
- IEEE80211_IF_TYPE_AP = 0x00000000,
- IEEE80211_IF_TYPE_MGMT = 0x00000001,
- IEEE80211_IF_TYPE_STA = 0x00000002,
- IEEE80211_IF_TYPE_IBSS = 0x00000003,
- IEEE80211_IF_TYPE_MNTR = 0x00000004,
- IEEE80211_IF_TYPE_WDS = 0x5A580211,
- IEEE80211_IF_TYPE_VLAN = 0x00080211,
-};
-
-/**
- * struct ieee80211_if_init_conf - initial configuration of an interface
- *
- * @if_id: internal interface ID. This number has no particular meaning to
- * drivers and the only allowed usage is to pass it to
- * ieee80211_beacon_get() and ieee80211_get_buffered_bc() functions.
- * This field is not valid for monitor interfaces
- * (interfaces of %IEEE80211_IF_TYPE_MNTR type).
- * @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.
- */
-struct ieee80211_if_init_conf {
- int if_id;
- int type;
- 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.
- * @generic_elem: used (together with @generic_elem_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.
- * @generic_elem_len: length of the generic element.
- * @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.
- *
- * 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;
- u8 *generic_elem;
- size_t generic_elem_len;
- struct sk_buff *beacon;
-};
-
-typedef enum { ALG_NONE, ALG_WEP, ALG_TKIP, ALG_CCMP, ALG_NULL }
-ieee80211_key_alg;
-
-
-struct ieee80211_key_conf {
-
- int hw_key_idx; /* filled + used by low-level driver */
- ieee80211_key_alg alg;
- int keylen;
-
-#define IEEE80211_KEY_FORCE_SW_ENCRYPT (1<<0) /* to be cleared by low-level
- driver */
-#define IEEE80211_KEY_DEFAULT_TX_KEY (1<<1) /* This key is the new default TX
- key (used only for broadcast
- keys). */
-#define IEEE80211_KEY_DEFAULT_WEP_ONLY (1<<2) /* static WEP is the only
- configured security policy;
- this allows some low-level
- drivers to determine when
- hwaccel can be used */
- u32 flags; /* key configuration flags defined above */
-
- s8 keyidx; /* WEP key index */
- u8 key[0];
-};
-
-#define IEEE80211_SCAN_START 1
-#define IEEE80211_SCAN_END 2
-
-struct ieee80211_scan_conf {
- int scan_channel; /* IEEE 802.11 channel number to do passive scan
- * on */
- int scan_freq; /* new freq in MHz to switch to for passive scan
- */
- int scan_channel_val; /* hw specific value for the channel */
- int scan_phymode; /* MODE_IEEE80211A, .. */
- unsigned char scan_power_level;
- unsigned char scan_antenna_max;
-
-
- int running_channel; /* IEEE 802.11 channel number we operate on
- * normally */
- int running_freq; /* freq in MHz we're operating on normally */
- int running_channel_val; /* hw specific value for the channel */
- int running_phymode;
- unsigned char running_power_level;
- unsigned char running_antenna_max;
-
- int scan_time; /* time a scan will take in us */
- int tries;
-
- struct sk_buff *skb; /* skb to transmit before changing channels, maybe
- * NULL for none */
- struct ieee80211_tx_control *tx_control;
-
-};
-
-#define IEEE80211_SEQ_COUNTER_RX 0
-#define IEEE80211_SEQ_COUNTER_TX 1
-
-typedef enum {
- SET_KEY, DISABLE_KEY, REMOVE_ALL_KEYS,
-} set_key_cmd;
-
-/* This is driver-visible part of the per-hw state the stack keeps. */
-struct ieee80211_hw {
- /* these are assigned by d80211, don't write */
- int index;
- struct ieee80211_conf conf;
-
- /* Pointer to the private area that was
- * allocated with this struct for you. */
- void *priv;
-
- /* The rest is information about your hardware */
-
- struct device *dev;
-
- /* permanent mac address */
- u8 perm_addr[ETH_ALEN];
-
- /* TODO: frame_type 802.11/802.3, sw_encryption requirements */
-
- /* Some wireless LAN chipsets generate beacons in the hardware/firmware
- * and others rely on host generated beacons. This option is used to
- * configure the upper layer IEEE 802.11 module to generate beacons.
- * The low-level driver can use ieee80211_beacon_get() to fetch the
- * next beacon frame. */
-#define IEEE80211_HW_HOST_GEN_BEACON (1<<0)
-
- /* The device needs to be supplied with a beacon template only. */
-#define IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE (1<<1)
-
- /* Some devices handle decryption internally and do not
- * indicate whether the frame was encrypted (unencrypted frames
- * will be dropped by the hardware, unless specifically allowed
- * through) */
-#define IEEE80211_HW_DEVICE_HIDES_WEP (1<<2)
-
- /* Whether RX frames passed to ieee80211_rx() include FCS in the end */
-#define IEEE80211_HW_RX_INCLUDES_FCS (1<<3)
-
- /* 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/multicast
- * frames when there are power saving stations so that low-level driver
- * can fetch them with ieee80211_get_buffered_bc(). */
-#define IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING (1<<4)
-
-#define IEEE80211_HW_WEP_INCLUDE_IV (1<<5)
-
- /* will data nullfunc frames get proper TX status callback */
-#define IEEE80211_HW_DATA_NULLFUNC_ACK (1<<6)
-
- /* Force software encryption for TKIP packets if WMM is enabled. */
-#define IEEE80211_HW_NO_TKIP_WMM_HWACCEL (1<<7)
-
- /* Some devices handle Michael MIC internally and do not include MIC in
- * the received packets passed up. device_strips_mic must be set
- * for such devices. The 'encryption' frame control bit is expected to
- * be still set in the IEEE 802.11 header with this option unlike with
- * the device_hides_wep configuration option.
- */
-#define IEEE80211_HW_DEVICE_STRIPS_MIC (1<<8)
-
- /* Device is capable of performing full monitor mode even during
- * normal operation. */
-#define IEEE80211_HW_MONITOR_DURING_OPER (1<<9)
-
- /* Set if the low-level driver supports skb fraglist (NETIF_F_FRAGLIST),
- * i.e. more than one skb per frame */
-#define IEEE80211_HW_FRAGLIST (1<<10)
-
- /* calculate Michael MIC for an MSDU when doing hwcrypto */
-#define IEEE80211_HW_TKIP_INCLUDE_MMIC (1<<12)
- /* Do TKIP phase1 key mixing in stack to support cards only do
- * phase2 key mixing when doing hwcrypto */
-#define IEEE80211_HW_TKIP_REQ_PHASE1_KEY (1<<13)
- /* Do TKIP phase1 and phase2 key mixing in stack and send the generated
- * per-packet RC4 key with each TX frame when doing hwcrypto */
-#define IEEE80211_HW_TKIP_REQ_PHASE2_KEY (1<<14)
-
- u32 flags; /* hardware flags defined above */
-
- /* Set to the size of a needed device specific skb headroom for TX skbs. */
- unsigned int extra_tx_headroom;
-
- /* This is the time in us to change channels
- */
- int channel_change_time;
- /* This is maximum value for rssi reported by this device */
- int maxssi;
-
- /* Number of available hardware TX queues for data packets.
- * WMM requires at least four queues. */
- int queues;
-};
-
-/* Configuration block used by the low-level driver to tell the 802.11 code
- * about supported hardware features and to pass function pointers to callback
- * functions. */
-struct ieee80211_ops {
- /* 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. */
- int (*tx)(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_tx_control *control);
-
- /* Handler for performing hardware reset. */
- int (*reset)(struct ieee80211_hw *hw);
-
- /* Handler that is called when any netdevice attached to the hardware
- * device is set UP for the first time. This can be used, e.g., to
- * enable interrupts and beacon sending. */
- int (*open)(struct ieee80211_hw *hw);
-
- /* Handler that is called when the last netdevice attached to the
- * hardware device is set DOWN. This can be used, e.g., to disable
- * interrupts and beacon sending. */
- int (*stop)(struct ieee80211_hw *hw);
-
- /* Handler for asking a driver if a new interface can be added (or,
- * more exactly, set UP). If the handler returns zero, the interface
- * is added. Driver should perform any initialization it needs prior
- * to returning zero. By returning non-zero addition of the interface
- * is inhibited. Unless monitor_during_oper is set, it is guaranteed
- * that monitor interfaces and normal interfaces are mutually
- * exclusive. The open() handler is called after add_interface()
- * if this is the first device added. At least one of the open()
- * open() and add_interface() callbacks has to be assigned. If
- * add_interface() is NULL, one STA interface is permitted only. */
- int (*add_interface)(struct ieee80211_hw *hw,
- struct ieee80211_if_init_conf *conf);
-
- /* Notify a driver that an interface is going down. The stop() handler
- * is called prior to this if this is a last interface. */
- void (*remove_interface)(struct ieee80211_hw *hw,
- struct ieee80211_if_init_conf *conf);
-
- /* Handler for configuration requests. IEEE 802.11 code calls this
- * function to change hardware configuration, e.g., channel. */
- int (*config)(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
-
- /* Handler for configuration requests related to interfaces (e.g.
- * BSSID). */
- int (*config_interface)(struct ieee80211_hw *hw,
- int if_id, struct ieee80211_if_conf *conf);
-
- /* ieee80211 drivers do not have access to the &struct net_device
- * that is (are) connected with their device. Hence (and because
- * we need to combine the multicast lists and flags for multiple
- * virtual interfaces), they cannot assign set_multicast_list.
- * The parameters here replace dev->flags and dev->mc_count,
- * dev->mc_list is replaced by calling ieee80211_get_mc_list_item. */
- void (*set_multicast_list)(struct ieee80211_hw *hw,
- unsigned short flags, int mc_count);
-
- /* Set TIM bit handler. If the hardware/firmware takes care of beacon
- * generation, IEEE 802.11 code uses this function to tell the
- * low-level to set (or clear if set==0) TIM bit for the given aid. If
- * host system is used to generate beacons, this handler is not used
- * and low-level driver should set it to NULL. */
- int (*set_tim)(struct ieee80211_hw *hw, int aid, int set);
-
- /* Set encryption key. IEEE 802.11 module calls this function to set
- * encryption keys. addr is ff:ff:ff:ff:ff:ff for default keys and
- * station hwaddr for individual keys. aid of the station is given
- * to help low-level driver in selecting which key->hw_key_idx to use
- * for this key. TX control data will use the hw_key_idx selected by
- * the low-level driver. */
- int (*set_key)(struct ieee80211_hw *hw, set_key_cmd cmd,
- u8 *addr, struct ieee80211_key_conf *key, int aid);
-
- /* Set TX key index for default/broadcast keys. This is needed in cases
- * where wlan card is doing full WEP/TKIP encapsulation (wep_include_iv
- * is not set), in other cases, this function pointer can be set to
- * NULL since the IEEE 802. 11 module takes care of selecting the key
- * index for each TX frame. */
- int (*set_key_idx)(struct ieee80211_hw *hw, int idx);
-
- /* Enable/disable IEEE 802.1X. This item requests wlan card to pass
- * unencrypted EAPOL-Key frames even when encryption is configured.
- * If the wlan card does not require such a configuration, this
- * function pointer can be set to NULL. */
- int (*set_ieee8021x)(struct ieee80211_hw *hw, int use_ieee8021x);
-
- /* Set port authorization state (IEEE 802.1X PAE) to be authorized
- * (authorized=1) or unauthorized (authorized=0). This function can be
- * used if the wlan hardware or low-level driver implements PAE.
- * 80211.o module will anyway filter frames based on authorization
- * state, so this function pointer can be NULL if low-level driver does
- * not require event notification about port state changes. */
- int (*set_port_auth)(struct ieee80211_hw *hw, u8 *addr,
- int authorized);
-
- /* Ask the hardware to do a passive scan on a new channel. The hardware
- * will do what ever is required to nicely leave the current channel
- * including transmit any CTS packets, etc. */
- int (*passive_scan)(struct ieee80211_hw *hw, int state,
- struct ieee80211_scan_conf *conf);
-
- /* Ask the hardware to service the scan request, no need to start
- * the scan state machine in stack. */
- int (*hw_scan)(struct ieee80211_hw *hw, u8 *ssid, size_t len);
-
- /* return low-level statistics */
- int (*get_stats)(struct ieee80211_hw *hw,
- struct ieee80211_low_level_stats *stats);
-
- /* Enable/disable test modes; mode = IEEE80211_TEST_* */
- int (*test_mode)(struct ieee80211_hw *hw, int mode);
-
- /* Configuration of test parameters */
- int (*test_param)(struct ieee80211_hw *hw, int param, int value);
-
- /* For devices that generate their own beacons and probe response
- * or association responses this updates the state of privacy_invoked
- * returns 0 for success or an error number */
- int (*set_privacy_invoked)(struct ieee80211_hw *hw,
- int privacy_invoked);
-
- /* For devices that have internal sequence counters, allow 802.11
- * code to access the current value of a counter */
- int (*get_sequence_counter)(struct ieee80211_hw *hw,
- u8* addr, u8 keyidx, u8 txrx,
- u32* iv32, u16* iv16);
-
- /* Configuration of RTS threshold (if device needs it) */
- int (*set_rts_threshold)(struct ieee80211_hw *hw, u32 value);
-
- /* 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. */
- int (*set_frag_threshold)(struct ieee80211_hw *hw, u32 value);
-
- /* Configuration of retry limits (if device needs it) */
- int (*set_retry_limit)(struct ieee80211_hw *hw,
- u32 short_retry, u32 long_retr);
-
- /* Number of STAs in STA table notification (NULL = disabled) */
- void (*sta_table_notification)(struct ieee80211_hw *hw,
- int num_sta);
-
- /* Configure TX queue parameters (EDCF (aifs, cw_min, cw_max),
- * bursting) for a hardware TX queue.
- * queue = IEEE80211_TX_QUEUE_*. */
- int (*conf_tx)(struct ieee80211_hw *hw, int queue,
- const struct ieee80211_tx_queue_params *params);
-
- /* 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. */
- int (*get_tx_stats)(struct ieee80211_hw *hw,
- struct ieee80211_tx_queue_stats *stats);
-
- /* 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. */
- u64 (*get_tsf)(struct ieee80211_hw *hw);
-
- /* 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. */
- void (*reset_tsf)(struct ieee80211_hw *hw);
-
- /* Setup beacon data for IBSS beacons. Unlike access point (Master),
- * IBSS uses a fixed beacon frame which is configured using this
- * function. This handler is required only for IBSS mode. */
- int (*beacon_update)(struct ieee80211_hw *hw,
- struct sk_buff *skb,
- struct ieee80211_tx_control *control);
-
- /* 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. */
- int (*tx_last_beacon)(struct ieee80211_hw *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. 802.11 code allocates a private data
- * area for the low-level driver. The size of this area is given as
- * priv_data_len.
- */
-struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
- const struct ieee80211_ops *ops);
-
-/* Register hardware device to the IEEE 802.11 code and kernel. Low-level
- * drivers must call this function before using any other IEEE 802.11
- * function except ieee80211_register_hwmode. */
-int ieee80211_register_hw(struct ieee80211_hw *hw);
-
-/* driver can use this and ieee80211_get_rx_led_name to get the
- * name of the registered LEDs after ieee80211_register_hw
- * was called.
- * This is useful to set the default trigger on the LED class
- * device that your driver should export for each LED the device
- * has, that way the default behaviour will be as expected but
- * the user can still change it/turn off the LED etc.
- */
-#ifdef CONFIG_D80211_LEDS
-extern char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw);
-extern char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw);
-#endif
-static inline char *ieee80211_get_tx_led_name(struct ieee80211_hw *hw)
-{
-#ifdef CONFIG_D80211_LEDS
- return __ieee80211_get_tx_led_name(hw);
-#else
- return NULL;
-#endif
-}
-
-static inline char *ieee80211_get_rx_led_name(struct ieee80211_hw *hw)
-{
-#ifdef CONFIG_D80211_LEDS
- return __ieee80211_get_rx_led_name(hw);
-#else
- return NULL;
-#endif
-}
-
-/* Register a new hardware PHYMODE capability to the stack. */
-int ieee80211_register_hwmode(struct ieee80211_hw *hw,
- struct ieee80211_hw_mode *mode);
-
-/* Unregister a hardware device. This function instructs 802.11 code to free
- * allocated resources and unregister netdevices from the kernel. */
-void ieee80211_unregister_hw(struct ieee80211_hw *hw);
-
-/* Free everything that was allocated including private data of a driver. */
-void ieee80211_free_hw(struct ieee80211_hw *hw);
-
-/* Receive frame callback function. The low-level driver uses this function to
- * send received frames to the IEEE 802.11 code. Receive buffer (skb) must
- * start with IEEE 802.11 header. */
-void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_rx_status *status);
-void ieee80211_rx_irqsafe(struct ieee80211_hw *hw,
- struct sk_buff *skb,
- struct ieee80211_rx_status *status);
-
-/* Transmit status callback function. The low-level driver must call this
- * function to report transmit status for all the TX frames that had
- * req_tx_status set in the transmit control fields. In addition, this should
- * be called at least for all unicast frames to provide information for TX rate
- * control algorithm. In order to maintain all statistics, this function is
- * recommended to be called after each frame, including multicast/broadcast, is
- * sent. */
-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().
- * @if_id: interface ID 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,
- int if_id,
- struct ieee80211_tx_control *control);
-
-/**
- * ieee80211_get_buffered_bc - accessing buffered broadcast and multicast frames
- * @hw: pointer as obtained from ieee80211_alloc_hw().
- * @if_id: interface ID 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, int if_id,
- struct ieee80211_tx_control *control);
-
-/* Low level drivers that have their own MLME and MAC indicate
- * the aid for an associating station with this call */
-int ieee80211_set_aid_for_sta(struct ieee80211_hw *hw,
- u8 *peer_address, u16 aid);
-
-
-/* Given an sk_buff 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.
- */
-int ieee80211_get_hdrlen_from_skb(struct sk_buff *skb);
-
-/* Like ieee80211_get_hdrlen_from_skb() but takes a FC in CPU order. */
-int ieee80211_get_hdrlen(u16 fc);
-
-/* Function for net interface operation. IEEE 802.11 may use multiple kernel
- * netdevices for each hardware device. The low-level driver does not "see"
- * these interfaces, so it should use this function to perform netif
- * operations on all interface. */
-/* This function is deprecated. */
-typedef enum {
- NETIF_ATTACH, NETIF_DETACH, NETIF_START, NETIF_STOP, NETIF_WAKE,
- NETIF_IS_STOPPED, NETIF_UPDATE_TX_START
-} Netif_Oper;
-int ieee80211_netif_oper(struct ieee80211_hw *hw, Netif_Oper op);
-
-/**
- * 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_get_mc_list_item - iteration over items in multicast list
- * @hw: pointer as obtained from ieee80211_alloc_hw().
- * @prev: value returned by previous call to ieee80211_get_mc_list_item() or
- * NULL to start a new iteration.
- * @ptr: pointer to buffer of void * type for internal usage of
- * ieee80211_get_mc_list_item().
- *
- * Iterates over items in multicast list of given device. To get the first
- * item, pass NULL in @prev and in *@ptr. In subsequent calls, pass the
- * value returned by previous call in @prev. Don't alter *@ptr during
- * iteration. When there are no more items, NULL is returned.
- */
-struct dev_mc_list *
-ieee80211_get_mc_list_item(struct ieee80211_hw *hw,
- struct dev_mc_list *prev,
- void **ptr);
-
-/* called by driver to notify scan status completed */
-void ieee80211_scan_completed(struct ieee80211_hw *hw);
-
-/* Function to indicate Radar Detection. The low level driver must call this
- * function to indicate the presence of radar in the current channel.
- * Additionally the radar type also could be sent */
-int ieee80211_radar_status(struct ieee80211_hw *hw, int channel,
- int radar, int radar_type);
-
-/* Test modes */
-enum {
- IEEE80211_TEST_DISABLE = 0 /* terminate testing */,
- IEEE80211_TEST_UNMASK_CHANNELS = 1 /* allow all channels to be used */,
- IEEE80211_TEST_CONTINUOUS_TX = 2,
-};
-
-/* Test parameters */
-enum {
- /* TX power in hardware specific raw value */
- IEEE80211_TEST_PARAM_TX_POWER_RAW = 0,
- /* TX rate in hardware specific raw value */
- IEEE80211_TEST_PARAM_TX_RATE_RAW = 1,
- /* Continuous TX pattern (32-bit) */
- IEEE80211_TEST_PARAM_TX_PATTERN = 2,
- /* TX power in 0.1 dBm, 100 = 10 dBm */
- IEEE80211_TEST_PARAM_TX_POWER = 3,
- /* TX rate in 100 kbps, 540 = 54 Mbps */
- IEEE80211_TEST_PARAM_TX_RATE = 4,
- IEEE80211_TEST_PARAM_TX_ANT_SEL_RAW = 5,
-};
-
-/* return a pointer to the source address (SA) */
-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;
-}
-
-/* return a pointer to the destination address (DA) */
-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;
-}
-
-static inline int ieee80211_get_morefrag(struct ieee80211_hdr *hdr)
-{
- return (le16_to_cpu(hdr->frame_control) &
- IEEE80211_FCTL_MOREFRAGS) != 0;
-}
-
-#define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
-#define MAC_ARG(x) ((u8*)(x))[0], ((u8*)(x))[1], ((u8*)(x))[2], \
- ((u8*)(x))[3], ((u8*)(x))[4], ((u8*)(x))[5]
-
-#endif /* D80211_H */
+++ /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 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/module.h>
-#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 <net/d80211.h>
-#include "ieee80211_i.h"
-#include "ieee80211_rate.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_EMERG_DEC 2
-#define RATE_CONTROL_INTERVAL (HZ / 20)
-#define RATE_CONTROL_MIN_TX 10
-
-MODULE_ALIAS("rc80211_default");
-
-static void rate_control_rate_inc(struct ieee80211_local *local,
- struct sta_info *sta)
-{
- struct ieee80211_sub_if_data *sdata;
- int i = sta->txrate;
- 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;
- }
-
- maxrate = sdata->bss ? sdata->bss->max_ratectrl_rateidx : -1;
-
- if (i > local->num_curr_rates)
- i = local->num_curr_rates - 2;
-
- while (i + 1 < local->num_curr_rates) {
- i++;
- if (sta->supp_rates & BIT(i) &&
- local->curr_rates[i].flags & IEEE80211_RATE_SUPPORTED &&
- (maxrate < 0 || i <= maxrate)) {
- sta->txrate = i;
- break;
- }
- }
-}
-
-
-static void rate_control_rate_dec(struct ieee80211_local *local,
- struct sta_info *sta)
-{
- struct ieee80211_sub_if_data *sdata;
- int i = sta->txrate;
-
- 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;
- }
-
- if (i > local->num_curr_rates)
- i = local->num_curr_rates;
-
- while (i > 0) {
- i--;
- if (sta->supp_rates & BIT(i) &&
- local->curr_rates[i].flags & IEEE80211_RATE_SUPPORTED) {
- sta->txrate = i;
- break;
- }
- }
-}
-
-
-static struct ieee80211_rate *
-rate_control_lowest_rate(struct ieee80211_local *local)
-{
- int i;
-
- for (i = 0; i < local->num_curr_rates; i++) {
- struct ieee80211_rate *rate = &local->curr_rates[i];
-
- if (rate->flags & IEEE80211_RATE_SUPPORTED
- )
- return rate;
- }
-
- printk(KERN_DEBUG "rate_control_lowest_rate - no supported rates "
- "found\n");
- return &local->curr_rates[0];
-}
-
-
-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;
-};
-
-
-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 = 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) {
- sta->antenna_sel = sta->antenna_sel == 1 ? 2 : 1;
- if (local->sta_antenna_sel == STA_ANTENNA_SEL_SW_CTRL_DEBUG) {
- printk(KERN_DEBUG "%s: " MAC_FMT " TX antenna --> %d "
- "(@%lu)\n",
- dev->name, MAC_ARG(hdr->addr1),
- sta->antenna_sel, jiffies);
- }
- 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
-
- if (per_failed > local->rate_ctrl_num_down) {
- rate_control_rate_dec(local, sta);
- } else if (per_failed < local->rate_ctrl_num_up) {
- rate_control_rate_inc(local, sta);
- }
- srctrl->tx_avg_rate_sum += local->curr_rates[sta->txrate].rate;
- 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_D80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: STA " MAC_FMT " Average rate: "
- "%d (%d/%d)\n",
- dev->name, MAC_ARG(sta->addr),
- srctrl->tx_avg_rate_sum /
- srctrl->tx_avg_rate_num,
- srctrl->tx_avg_rate_sum,
- srctrl->tx_avg_rate_num);
-#endif /* CONFIG_D80211_VERBOSE_DEBUG */
- srctrl->tx_avg_rate_sum = 0;
- srctrl->tx_avg_rate_num = 0;
- }
- }
-
- sta_info_put(sta);
-}
-
-
-static struct ieee80211_rate *
-rate_control_simple_get_rate(void *priv, struct net_device *dev,
- struct sk_buff *skb,
- struct rate_control_extra *extra)
-{
- struct ieee80211_local *local = dev->ieee80211_ptr;
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct sta_info *sta;
- int rateidx, nonerp_idx;
- u16 fc;
-
- memset(extra, 0, sizeof(*extra));
-
- fc = le16_to_cpu(hdr->frame_control);
- if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
- (hdr->addr1[0] & 0x01)) {
- /* Send management frames and broadcast/multicast data using
- * lowest rate. */
- /* TODO: this could probably be improved.. */
- return rate_control_lowest_rate(local);
- }
-
- sta = sta_info_get(local, hdr->addr1);
-
- if (!sta)
- return rate_control_lowest_rate(local);
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->bss && sdata->bss->force_unicast_rateidx > -1)
- sta->txrate = sdata->bss->force_unicast_rateidx;
-
- rateidx = sta->txrate;
-
- if (rateidx >= local->num_curr_rates)
- rateidx = local->num_curr_rates - 1;
-
- sta->last_txrate = rateidx;
- nonerp_idx = rateidx;
- while (nonerp_idx > 0 &&
- ((local->curr_rates[nonerp_idx].flags & IEEE80211_RATE_ERP) ||
- !(local->curr_rates[nonerp_idx].flags &
- IEEE80211_RATE_SUPPORTED) ||
- !(sta->supp_rates & BIT(nonerp_idx))))
- nonerp_idx--;
- extra->nonerp_idx = nonerp_idx;
- extra->nonerp = &local->curr_rates[extra->nonerp_idx];
-
- sta_info_put(sta);
-
- return &local->curr_rates[rateidx];
-}
-
-
-static void rate_control_simple_rate_init(void *priv, void *priv_sta,
- struct ieee80211_local *local,
- struct sta_info *sta)
-{
- int i;
- sta->txrate = 0;
- /* TODO: what is a good starting rate for STA? About middle? Maybe not
- * the lowest or the highest rate.. Could consider using RSSI from
- * previous packets? Need to have IEEE 802.1X auth succeed immediately
- * after assoc.. */
- for (i = 0; i < local->num_curr_rates; i++) {
- if ((sta->supp_rates & BIT(i)) &&
- (local->curr_rates[i].flags & IEEE80211_RATE_SUPPORTED))
- sta->txrate = i;
- }
-}
-
-
-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);
-}
-
-static ssize_t show_sta_tx_avg_rate_sum(const struct sta_info *sta, char *buf)
-{
- struct sta_rate_control *srctrl = sta->rate_ctrl_priv;
-
- return sprintf(buf, "%d\n", srctrl->tx_avg_rate_sum);
-}
-
-static ssize_t show_sta_tx_avg_rate_num(const struct sta_info *sta, char *buf)
-{
- struct sta_rate_control *srctrl = sta->rate_ctrl_priv;
-
- return sprintf(buf, "%d\n", srctrl->tx_avg_rate_num);
-}
-
-static struct sta_attribute sta_attr_tx_avg_rate_sum =
- __ATTR(tx_avg_rate_sum, S_IRUSR, show_sta_tx_avg_rate_sum, NULL);
-static struct sta_attribute sta_attr_tx_avg_rate_num =
- __ATTR(tx_avg_rate_num, S_IRUSR, show_sta_tx_avg_rate_num, NULL);
-
-static struct attribute *rate_control_simple_sta_attrs[] = {
- &sta_attr_tx_avg_rate_sum.attr,
- &sta_attr_tx_avg_rate_num.attr,
- NULL,
-};
-
-static struct attribute_group rate_control_simple_sta_group = {
- .name = "rate_control_simple",
- .attrs = rate_control_simple_sta_attrs,
-};
-
-static int rate_control_simple_add_sta_attrs(void *priv, void *priv_sta,
- struct kobject *kobj)
-{
- return sysfs_create_group(kobj, &rate_control_simple_sta_group);
-}
-
-static void rate_control_simple_remove_sta_attrs(void *priv, void *priv_sta,
- struct kobject *kobj)
-{
- sysfs_remove_group(kobj, &rate_control_simple_sta_group);
-}
-
-static struct rate_control_ops rate_control_simple = {
- .module = THIS_MODULE,
- .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,
- .add_sta_attrs = rate_control_simple_add_sta_attrs,
- .remove_sta_attrs = rate_control_simple_remove_sta_attrs,
-};
-
-
-static int __init rate_control_simple_init(void)
-{
- return ieee80211_rate_control_register(&rate_control_simple);
-}
-
-
-static void __exit rate_control_simple_exit(void)
-{
- ieee80211_rate_control_unregister(&rate_control_simple);
-}
-
-
-module_init(rate_control_simple_init);
-module_exit(rate_control_simple_exit);
-
-MODULE_DESCRIPTION("Simple rate control algorithm for ieee80211");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/*
- * Copyright 2002-2005, 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/module.h>
-#include <linux/init.h>
-#include <linux/kobject.h>
-#include <linux/netdevice.h>
-#include <linux/types.h>
-#include <linux/slab.h>
-#include <linux/skbuff.h>
-#include <linux/if_arp.h>
-
-#include <net/d80211.h>
-#include "ieee80211_i.h"
-#include "ieee80211_rate.h"
-#include "sta_info.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 void 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;
- if (memcmp(s->addr, sta->addr, ETH_ALEN) == 0) {
- local->sta_hash[STA_HASH(sta->addr)] = s->hnext;
- return;
- }
-
- while (s->hnext && memcmp(s->hnext->addr, sta->addr, ETH_ALEN) != 0)
- s = s->hnext;
- if (s->hnext)
- s->hnext = s->hnext->hnext;
- else
- printk(KERN_ERR "%s: could not remove STA " MAC_FMT " from "
- "hash table\n", local->mdev->name, MAC_ARG(sta->addr));
-}
-
-static inline struct sta_info *__sta_info_get(struct sta_info *sta)
-{
- return kobject_get(&sta->kobj) ? sta : NULL;
-}
-
-struct sta_info * sta_info_get(struct ieee80211_local *local, u8 *addr)
-{
- struct sta_info *sta;
-
- spin_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;
- }
- spin_unlock_bh(&local->sta_lock);
-
- return sta;
-}
-EXPORT_SYMBOL(sta_info_get);
-
-int sta_info_min_txrate_get(struct ieee80211_local *local)
-{
- struct sta_info *sta;
- int min_txrate = 9999999;
- int i;
-
- spin_lock_bh(&local->sta_lock);
- for (i = 0; i < STA_HASH_SIZE; i++) {
- sta = local->sta_hash[i];
- while (sta) {
- if (sta->txrate < min_txrate)
- min_txrate = sta->txrate;
- sta = sta->hnext;
- }
- }
- spin_unlock_bh(&local->sta_lock);
- if (min_txrate == 9999999)
- min_txrate = 0;
-
- return min_txrate;
-}
-
-
-void sta_info_put(struct sta_info *sta)
-{
- kobject_put(&sta->kobj);
-}
-EXPORT_SYMBOL(sta_info_put);
-
-void sta_info_release(struct kobject *kobj)
-{
- struct sta_info *sta = container_of(kobj, struct sta_info, kobj);
- struct ieee80211_local *local = sta->local;
- struct sk_buff *skb;
-
- /* 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);
- }
- rate_control_free_sta(sta->rate_ctrl, sta->rate_ctrl_priv);
- rate_control_put(sta->rate_ctrl);
- kfree(sta);
-}
-
-
-struct sta_info * sta_info_add(struct ieee80211_local *local,
- struct net_device *dev, u8 *addr, gfp_t gfp)
-{
- struct sta_info *sta;
-
- sta = kzalloc(sizeof(*sta), gfp);
- if (!sta)
- return NULL;
-
- if (kobject_set_name(&sta->kobj, MAC_FMT, MAC_ARG(addr))) {
- kfree(sta);
- return NULL;
- }
- sta->kobj.kset = &local->sta_kset;
- kobject_init(&sta->kobj);
-
- 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);
- kobject_put(&sta->kobj);
- kfree(sta);
- return NULL;
- }
-
- memcpy(sta->addr, addr, ETH_ALEN);
- sta->local = local;
- sta->dev = dev;
- 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() */
- spin_lock_bh(&local->sta_lock);
- list_add(&sta->list, &local->sta_list);
- local->num_sta++;
- sta_info_hash_add(local, sta);
- spin_unlock_bh(&local->sta_lock);
- if (local->ops->sta_table_notification)
- local->ops->sta_table_notification(local_to_hw(local),
- local->num_sta);
- sta->key_idx_compression = HW_KEY_IDX_INVALID;
-
-#ifdef CONFIG_D80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: Added STA " MAC_FMT "\n",
- local->mdev->name, MAC_ARG(addr));
-#endif /* CONFIG_D80211_VERBOSE_DEBUG */
-
- if (!in_interrupt()) {
- sta->sysfs_registered = 1;
- ieee80211_sta_sysfs_add(sta);
- rate_control_add_sta_attrs(sta, &sta->kobj);
- } else {
- /* procfs entry adding might sleep, so schedule process context
- * task for adding proc entry for STAs that do not yet have
- * one. */
- schedule_work(&local->sta_proc_add);
- }
-
- return sta;
-}
-
-static void finish_sta_info_free(struct ieee80211_local *local,
- struct sta_info *sta)
-{
-#ifdef CONFIG_D80211_VERBOSE_DEBUG
- printk(KERN_DEBUG "%s: Removed STA " MAC_FMT "\n",
- local->mdev->name, MAC_ARG(sta->addr));
-#endif /* CONFIG_D80211_VERBOSE_DEBUG */
-
- if (sta->key) {
- ieee80211_key_sysfs_remove(sta->key);
- ieee80211_key_free(sta->key);
- sta->key = NULL;
- }
-
- rate_control_remove_sta_attrs(sta, &sta->kobj);
- ieee80211_sta_sysfs_remove(sta);
-
- sta_info_put(sta);
-}
-
-void sta_info_free(struct sta_info *sta, int locked)
-{
- struct sk_buff *skb;
- struct ieee80211_local *local = sta->local;
- struct ieee80211_sub_if_data *sdata;
-
- if (!locked)
- spin_lock_bh(&local->sta_lock);
- sta_info_hash_del(local, sta);
- 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);
- if (!locked)
- spin_unlock_bh(&local->sta_lock);
- if (local->ops->sta_table_notification)
- local->ops->sta_table_notification(local_to_hw(local),
- local->num_sta);
-
- 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);
- }
-
- if (sta->key) {
- if (local->ops->set_key) {
- struct ieee80211_key_conf *key;
- key = ieee80211_key_data2conf(local, sta->key);
- if (key) {
- local->ops->set_key(local_to_hw(local),
- DISABLE_KEY,
- sta->addr, key, sta->aid);
- kfree(key);
- }
- }
- } else if (sta->key_idx_compression != HW_KEY_IDX_INVALID) {
- struct ieee80211_key_conf conf;
- memset(&conf, 0, sizeof(conf));
- conf.hw_key_idx = sta->key_idx_compression;
- conf.alg = ALG_NULL;
- conf.flags |= IEEE80211_KEY_FORCE_SW_ENCRYPT;
- local->ops->set_key(local_to_hw(local), DISABLE_KEY,
- sta->addr, &conf, sta->aid);
- sta->key_idx_compression = HW_KEY_IDX_INVALID;
- }
-
- if (in_atomic()) {
- list_add(&sta->list, &local->deleted_sta_list);
- schedule_work(&local->sta_proc_add);
- } else
- finish_sta_info_free(local, 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;
-
- 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 "
- MAC_FMT ")\n", MAC_ARG(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;
-
- spin_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);
- }
- spin_unlock_bh(&local->sta_lock);
-
- local->sta_cleanup.expires = jiffies + STA_INFO_CLEANUP_INTERVAL;
- add_timer(&local->sta_cleanup);
-}
-
-
-static void sta_info_proc_add_task(struct work_struct *work)
-{
- struct ieee80211_local *local =
- container_of(work, struct ieee80211_local, sta_proc_add);
- struct sta_info *sta, *tmp;
-
- while (1) {
- spin_lock_bh(&local->sta_lock);
- if (!list_empty(&local->deleted_sta_list)) {
- sta = list_entry(local->deleted_sta_list.next,
- struct sta_info, list);
- list_del(local->deleted_sta_list.next);
- } else
- sta = NULL;
- spin_unlock_bh(&local->sta_lock);
- if (!sta)
- break;
- finish_sta_info_free(local, sta);
- }
-
- while (1) {
- sta = NULL;
- spin_lock_bh(&local->sta_lock);
- list_for_each_entry(tmp, &local->sta_list, list) {
- if (!tmp->sysfs_registered) {
- sta = tmp;
- __sta_info_get(sta);
- break;
- }
- }
- spin_unlock_bh(&local->sta_lock);
-
- if (!sta)
- break;
-
- sta->sysfs_registered = 1;
- ieee80211_sta_sysfs_add(sta);
- rate_control_add_sta_attrs(sta, &sta->kobj);
- sta_info_put(sta);
- }
-}
-
-
-void sta_info_init(struct ieee80211_local *local)
-{
- spin_lock_init(&local->sta_lock);
- INIT_LIST_HEAD(&local->sta_list);
- INIT_LIST_HEAD(&local->deleted_sta_list);
-
- init_timer(&local->sta_cleanup);
- local->sta_cleanup.expires = jiffies + STA_INFO_CLEANUP_INTERVAL;
- local->sta_cleanup.data = (unsigned long) local;
- local->sta_cleanup.function = sta_info_cleanup;
-
- INIT_WORK(&local->sta_proc_add, sta_info_proc_add_task);
-}
-
-int sta_info_start(struct ieee80211_local *local)
-{
- int res;
-
- res = ieee80211_sta_kset_sysfs_register(local);
- if (res)
- return res;
- add_timer(&local->sta_cleanup);
- return 0;
-}
-
-void sta_info_stop(struct ieee80211_local *local)
-{
- struct sta_info *sta, *tmp;
-
- del_timer(&local->sta_cleanup);
-
- list_for_each_entry_safe(sta, tmp, &local->sta_list, list) {
- /* sta_info_free must be called with 0 as the last
- * parameter to ensure all sysfs sta entries are
- * unregistered. We don't need locking at this
- * point. */
- sta_info_free(sta, 0);
- }
- ieee80211_sta_kset_sysfs_unregister(local);
-}
-
-
-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;
-
- spin_lock_bh(&local->sta_lock);
- list_for_each_entry_safe(sta, tmp, &local->sta_list, list)
- if (!dev || dev == sta->dev)
- sta_info_free(sta, 1);
- spin_unlock_bh(&local->sta_lock);
-}
+++ /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 "ieee80211_key.h"
-
-/* Stations flags (struct sta_info::flags) */
-#define WLAN_STA_AUTH BIT(0)
-#define WLAN_STA_ASSOC BIT(1)
-#define WLAN_STA_PS BIT(2)
-#define WLAN_STA_TIM BIT(3) /* TIM bit is on for PS stations */
-#define WLAN_STA_PERM BIT(4) /* permanent; do not remove entry on expiration */
-#define WLAN_STA_AUTHORIZED BIT(5) /* If 802.1X is used, this flag is
- * controlling whether STA is authorized to
- * send and receive non-IEEE 802.1X frames
- */
-#define WLAN_STA_SHORT_PREAMBLE BIT(7)
-#define WLAN_STA_WME BIT(9)
-#define WLAN_STA_WDS BIT(27)
-
-
-struct sta_info {
- struct list_head list;
- struct kobject kobj;
- 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;
- u32 supp_rates; /* bitmap of supported rates in local->curr_rates */
- int txrate; /* index in local->curr_rates */
- int last_txrate; /* last rate used to send a frame to this STA */
- int last_nonerp_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;
-
- int antenna_sel;
-
-
- int key_idx_compression; /* key table index for compression and TX
- * filtering; used only if sta->key is not
- * set */
-
- unsigned int sysfs_registered:1;
- unsigned int assoc_ap:1; /* whether this is an AP that we are
- * associated with as a client */
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- u32 wpa_trigger;
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
-#ifdef CONFIG_D80211_DEBUG_COUNTERS
- unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
- unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
-#endif /* CONFIG_D80211_DEBUG_COUNTERS */
-
- int vlan_id;
-
- u16 listen_interval;
-};
-
-
-/* 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)
-
-struct sta_info * sta_info_get(struct ieee80211_local *local, u8 *addr);
-int sta_info_min_txrate_get(struct ieee80211_local *local);
-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_free(struct sta_info *sta, int locked);
-void sta_info_release(struct kobject *kobj);
-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/d80211.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->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->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->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->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 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->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
- printk(KERN_DEBUG "TKIP replay detected for RX frame from "
- MAC_FMT " (RX IV (%04x,%02x) <= prev. IV (%04x,%02x)\n",
- MAC_ARG(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->key[ALG_TKIP_TEMP_ENCR_KEY],
- iv32, key->u.tkip.p1k_rx[queue]);
-#ifdef CONFIG_TKIP_DEBUG
- {
- int i;
- printk(KERN_DEBUG "TKIP decrypt: Phase1 TA=" MAC_FMT
- " TK=", MAC_ARG(ta));
- for (i = 0; i < 16; i++)
- printk("%02x ",
- key->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->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) {
- /* FIX: these should be updated only after Michael MIC has been
- * verified */
- /* Record previously received IV */
- key->u.tkip.iv32_rx[queue] = iv32;
- key->u.tkip.iv16_rx[queue] = 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);
-
-#endif /* TKIP_H */
+++ /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 <asm/scatterlist.h>
-
-#include <net/d80211.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;
-}
-
-
-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->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->keyidx << 6;
-}
-
-
-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;
-}
-
-
-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.page = virt_to_page(data);
- sg.offset = offset_in_page(data);
- sg.length = 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->alg != ALG_WEP)
- return -1;
-
- klen = 3 + key->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->key, key->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.page = virt_to_page(data);
- sg.offset = offset_in_page(data);
- sg.length = 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->keyidx || key->alg != ALG_WEP)
- return -1;
-
- klen = 3 + key->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->key, key->keylen);
-
- if (ieee80211_wep_decrypt_data(local->wep_rx_tfm, rc4key, klen,
- skb->data + hdrlen + WEP_IV_LEN,
- len)) {
- 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;
-}
-
-
-int ieee80211_wep_get_keyidx(struct sk_buff *skb)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- u16 fc;
- int hdrlen;
-
- 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;
-
- return skb->data[hdrlen + 3] >> 6;
-}
-
-
-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->keylen))
- return ivpos;
-
- return NULL;
-}
+++ /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_get_iv(struct ieee80211_local *local,
- struct ieee80211_key *key, u8 *iv);
-u8 * ieee80211_wep_add_iv(struct ieee80211_local *local,
- struct sk_buff *skb,
- struct ieee80211_key *key);
-void ieee80211_wep_remove_iv(struct ieee80211_local *local,
- struct sk_buff *skb,
- struct ieee80211_key *key);
-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);
-int ieee80211_wep_get_keyidx(struct sk_buff *skb);
-u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key);
-
-#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/d80211.h>
-#include "ieee80211_i.h"
-#include "wme.h"
-
-#define CHILD_QDISC_OPS pfifo_qdisc_ops
-
-static inline int WLAN_FC_IS_QOS_DATA(u16 fc)
-{
- return (fc & 0x8C) == 0x88;
-}
-
-
-ieee80211_txrx_result
-ieee80211_rx_h_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;
- } 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 */
- }
- }
-#ifdef CONFIG_D80211_DEBUG_COUNTERS
- I802_DEBUG_INC(rx->local->wme_rx_queue[tid]);
- if (rx->sta) {
- I802_DEBUG_INC(rx->sta->wme_rx_queue[tid]);
- }
-#endif /* CONFIG_D80211_DEBUG_COUNTERS */
-
- 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;
-
- return TXRX_CONTINUE;
-}
-
-
-ieee80211_txrx_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 TXRX_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 TXRX_CONTINUE;
-}
-
-
-/* maximum number of hardware queues we support. */
-#define TC_80211_MAX_QUEUES 8
-
-struct ieee80211_sched_data
-{
- struct tcf_proto *filter_list;
- struct Qdisc *queues[TC_80211_MAX_QUEUES];
- struct sk_buff_head requeued[TC_80211_MAX_QUEUES];
-};
-
-
-/* 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;
-
-#ifdef CONFIG_NET_SCHED
- 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;
- }
-#endif /* CONFIG_NET_SCHED */
-
- /* 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) + 8 /* LLC + proto */;
- if (skb->protocol != __constant_htons(ETH_P_IP) ||
- skb->len < offset + sizeof(*ip))
- return 0;
-
- ip = (struct iphdr *) (skb->data + offset);
-
- 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 = qd->dev->ieee80211_ptr;
- 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);
- int qos;
- const int ieee802_1d_to_ac[8] = { 2, 3, 3, 2, 1, 1, 0, 0 };
-
- /* 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 (unlikely(pkt_data->mgmt_iface)) {
- /* Data frames from hostapd (mainly, EAPOL) use AC_VO
- * and they will include QoS control fields if
- * the target STA is using WME. */
- skb->priority = 7;
- return ieee802_1d_to_ac[skb->priority];
- }
-
- /* 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);
-
- /* incase 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 = 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;
-
- if (pkt_data->requeue) {
- skb_queue_tail(&q->requeued[pkt_data->queue], skb);
- 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 qos_hdr = skb->priority & QOS_CONTROL_TAG1D_MASK;
- if (local->wifi_wme_noack_test)
- qos_hdr |= QOS_CONTROL_ACK_POLICY_NOACK <<
- QOS_CONTROL_ACK_POLICY_SHIFT;
- /* qos header is 2 bytes, second reserved */
- *p = qos_hdr;
- p++;
- *p = 0;
- }
-
- 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 {
- 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 = 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]))
- continue;
-
- /* there is space - try and get a frame */
- skb = skb_dequeue(&q->requeued[queue]);
- if (skb)
- 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 = 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 = qd->dev->ieee80211_ptr;
- struct ieee80211_hw *hw = &local->hw;
- struct tcf_proto *tp;
- int queue;
-
- while ((tp = q->filter_list) != NULL) {
- q->filter_list = tp->next;
- tp->ops->destroy(tp);
- }
-
- 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 = dev->ieee80211_ptr;
- int queues = local->hw.queues;
- int err = 0, i;
-
- /* 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;
-
- /* 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, &CHILD_QDISC_OPS,
- qd->handle);
- if (q->queues[i] == 0) {
- q->queues[i] = &noop_qdisc;
- printk(KERN_ERR "%s child qdisc %i creation failed", dev->name, i);
- }
- }
-
- 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 = 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 = 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 = 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)
-{
- /* printk(KERN_DEBUG "entering %s\n", __func__); */
-}
-
-
-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 = qd->dev->ieee80211_ptr;
- struct ieee80211_hw *hw = &local->hw;
- /* printk(KERN_DEBUG "entering %s\n", __func__); */
-
- 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 = qd->dev->ieee80211_ptr;
- struct ieee80211_hw *hw = &local->hw;
- /* printk(KERN_DEBUG "entering %s\n", __func__); */
-
- 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 = qd->dev->ieee80211_ptr;
- struct ieee80211_hw *hw = &local->hw;
- /* printk(KERN_DEBUG "entering %s\n", __func__); */
-
- 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 = qd->dev->ieee80211_ptr;
- struct ieee80211_hw *hw = &local->hw;
- int queue;
- /* printk(KERN_DEBUG "entering %s\n", __func__); */
-
- 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);
- /* printk("entering %s\n", __func__); */
-
- 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_wme_register(void)
-{
- int err = 0;
-
-#ifdef CONFIG_NET_SCHED
- err = register_qdisc(&wme_qdisc_ops);
-#endif
- return err;
-}
-
-
-void ieee80211_wme_unregister(void)
-{
-#ifdef CONFIG_NET_SCHED
- unregister_qdisc(&wme_qdisc_ops);
-#endif
-}
+++ /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
-
-ieee80211_txrx_result
-ieee80211_rx_h_parse_qos(struct ieee80211_txrx_data *rx);
-
-ieee80211_txrx_result
-ieee80211_rx_h_remove_qos_control(struct ieee80211_txrx_data *rx);
-
-void ieee80211_install_qdisc(struct net_device *dev);
-
-int ieee80211_wme_register(void);
-void ieee80211_wme_unregister(void);
-
-#endif
+++ /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/iw_handler.h>
-
-#include <net/d80211.h>
-#include "ieee80211_common.h"
-#include "ieee80211_i.h"
-#include "michael.h"
-#include "tkip.h"
-#include "aes_ccm.h"
-#include "wpa.h"
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
-#include "hostapd_ioctl.h"
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
-
-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_txrx_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->alg != ALG_TKIP || skb->len < 24 ||
- !WLAN_FC_DATA_PRESENT(fc))
- return TXRX_CONTINUE;
-
- if (ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len))
- return TXRX_DROP;
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if ((tx->sta && tx->sta->wpa_trigger & WPA_TRIGGER_FAIL_TX_MIC) ||
- (!tx->u.tx.unicast &&
- tx->local->wpa_trigger & WPA_TRIGGER_FAIL_TX_MIC)) {
- wpa_test = 1;
- }
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
- if (!tx->key->force_sw_encrypt &&
- !tx->fragmented &&
- !(tx->local->hw.flags & IEEE80211_HW_TKIP_INCLUDE_MMIC) &&
- !wpa_test) {
- /* hwaccel - with no need for preallocated room for Michael MIC
- */
- return TXRX_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 TXRX_DROP;
- }
- }
-
-#if 0
- authenticator = fc & IEEE80211_FCTL_FROMDS; /* FIX */
-#else
- authenticator = 1;
-#endif
- key = &tx->key->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);
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (tx->sta && tx->sta->wpa_trigger & WPA_TRIGGER_FAIL_TX_MIC) {
- printk(KERN_INFO "%s: WPA testing - corrupting TX Michael MIC "
- "for STA " MAC_FMT "\n",
- tx->dev->name, MAC_ARG(tx->sta->addr));
- tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID;
- tx->sta->wpa_trigger &= ~WPA_TRIGGER_FAIL_TX_MIC;
- tx->wpa_test = 1;
- mic[0]++;
- } else if (!tx->u.tx.unicast &&
- tx->local->wpa_trigger & WPA_TRIGGER_FAIL_TX_MIC) {
- printk(KERN_INFO "%s: WPA testing - corrupting TX Michael MIC "
- "for Group Key\n", tx->dev->name);
- tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID;
- tx->local->wpa_trigger &= ~WPA_TRIGGER_FAIL_TX_MIC;
- tx->wpa_test = 1;
- mic[0]++;
- }
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
- return TXRX_CONTINUE;
-}
-
-
-ieee80211_txrx_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;
-
- fc = rx->fc;
-
- /* If device handles decryption totally, skip this check */
- if ((rx->local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP) ||
- (rx->local->hw.flags & IEEE80211_HW_DEVICE_STRIPS_MIC))
- return TXRX_CONTINUE;
-
- if (!rx->key || rx->key->alg != ALG_TKIP ||
- !(rx->fc & IEEE80211_FCTL_PROTECTED) || !WLAN_FC_DATA_PRESENT(fc))
- return TXRX_CONTINUE;
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (rx->sta && rx->sta->wpa_trigger & WPA_TRIGGER_FAIL_RX_MIC) {
- wpa_test = 1;
- }
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
- if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
- !rx->key->force_sw_encrypt) {
- if (rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) {
- if (skb->len < MICHAEL_MIC_LEN)
- return TXRX_DROP;
- }
- /* Need to verify Michael MIC sometimes in software even when
- * hwaccel is used. Atheros ar5212: fragmented frames and QoS
- * frames. */
- if (!rx->fragmented && !wpa_test)
- goto remove_mic;
- }
-
- if (ieee80211_get_hdr_info(skb, &sa, &da, &qos_tid, &data, &data_len)
- || data_len < MICHAEL_MIC_LEN)
- return TXRX_DROP;
-
- data_len -= MICHAEL_MIC_LEN;
-
-#if 0
- authenticator = fc & IEEE80211_FCTL_TODS; /* FIX */
-#else
- authenticator = 1;
-#endif
- key = &rx->key->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);
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (rx->sta && rx->sta->wpa_trigger & WPA_TRIGGER_FAIL_RX_MIC) {
- printk(KERN_INFO "%s: WPA testing - corrupting RX Michael MIC "
- "for STA " MAC_FMT "\n",
- rx->dev->name, MAC_ARG(rx->sta->addr));
- rx->sta->wpa_trigger &= ~WPA_TRIGGER_FAIL_RX_MIC;
- mic[0]++;
- }
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
- if (memcmp(mic, data + data_len, MICHAEL_MIC_LEN) != 0 || wpa_test) {
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- int i;
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
- if (!rx->u.rx.ra_match)
- return TXRX_DROP;
-
- printk(KERN_DEBUG "%s: invalid Michael MIC in data frame from "
- MAC_FMT "\n", rx->dev->name, MAC_ARG(sa));
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- printk(KERN_DEBUG " received");
- for (i = 0; i < MICHAEL_MIC_LEN; i++)
- printk(" %02x", data[data_len + i]);
- printk(" expected");
- for (i = 0; i < MICHAEL_MIC_LEN; i++)
- printk(" %02x", mic[i]);
- printk("\n");
- printk(KERN_DEBUG " SA=" MAC_FMT " DA=" MAC_FMT " key",
- MAC_ARG(sa), MAC_ARG(da));
- for (i = 0; i < 8; i++)
- printk(" %02x", key[i]);
- printk(" (%d)\n", authenticator);
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
- do {
- struct ieee80211_hdr *hdr;
- union iwreq_data wrqu;
- char *buf = kmalloc(128, GFP_ATOMIC);
- if (!buf)
- break;
-
- /* TODO: needed parameters: count, key type, TSC */
- hdr = (struct ieee80211_hdr *) skb->data;
- sprintf(buf, "MLME-MICHAELMICFAILURE.indication("
- "keyid=%d %scast addr=" MAC_FMT ")",
- rx->key->keyidx,
- hdr->addr1[0] & 0x01 ? "broad" : "uni",
- MAC_ARG(hdr->addr2));
- memset(&wrqu, 0, sizeof(wrqu));
- wrqu.data.length = strlen(buf);
- wireless_send_event(rx->dev, IWEVCUSTOM, &wrqu, buf);
- kfree(buf);
- } while (0);
-
- if (!rx->local->apdev)
- return TXRX_DROP;
-
- ieee80211_rx_mgmt(rx->local, rx->skb, rx->u.rx.status,
- ieee80211_msg_michael_mic_failure);
-
- return TXRX_QUEUED;
- }
-
- remove_mic:
- /* remove Michael MIC from payload */
- skb_trim(skb, skb->len - MICHAEL_MIC_LEN);
-
- return TXRX_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;
-
- tailneed = !tx->key->force_sw_encrypt ? 0 : 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;
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (test & WPA_TRIGGER_TX_REPLAY)
- goto skip_iv_inc;
-iv_inc:
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
- /* Increase IV for the frame */
- key->u.tkip.iv16++;
- if (key->u.tkip.iv16 == 0)
- key->u.tkip.iv32++;
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (test & WPA_TRIGGER_TX_SKIP_SEQ) {
- test = 0;
- goto iv_inc;
- }
-skip_iv_inc:
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
- if (!tx->key->force_sw_encrypt
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- && !tx->wpa_test
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
- ) {
- u32 flags = tx->local->hw.flags;
- 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);
-
- if (flags & IEEE80211_HW_TKIP_REQ_PHASE2_KEY)
- ieee80211_tkip_gen_rc4key(key, hdr->addr2,
- tx->u.tx.control->tkip_key);
- else if (flags & IEEE80211_HW_TKIP_REQ_PHASE1_KEY) {
- if (key->u.tkip.iv16 == 0 ||
- !key->u.tkip.tx_initialized) {
- ieee80211_tkip_gen_phase1key(key, hdr->addr2,
- (u16 *)tx->u.tx.control->tkip_key);
- key->u.tkip.tx_initialized = 1;
- tx->u.tx.control->flags |=
- IEEE80211_TXCTL_TKIP_NEW_PHASE1_KEY;
- } else
- tx->u.tx.control->flags &=
- ~IEEE80211_TXCTL_TKIP_NEW_PHASE1_KEY;
- }
-
- tx->u.tx.control->key_idx = tx->key->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_txrx_result
-ieee80211_tx_h_tkip_encrypt(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
- u16 fc;
- struct ieee80211_key *key = tx->key;
- struct sk_buff *skb = tx->skb;
- int wpa_test = 0, test = 0;
-
- fc = le16_to_cpu(hdr->frame_control);
-
- if (!key || key->alg != ALG_TKIP || !WLAN_FC_DATA_PRESENT(fc))
- return TXRX_CONTINUE;
-
- tx->u.tx.control->icv_len = TKIP_ICV_LEN;
- tx->u.tx.control->iv_len = TKIP_IV_LEN;
- ieee80211_tx_set_iswep(tx);
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if ((tx->sta && tx->sta->wpa_trigger & WPA_TRIGGER_FAIL_TX_ICV) ||
- (!tx->u.tx.unicast &&
- tx->local->wpa_trigger & WPA_TRIGGER_FAIL_TX_ICV)) {
- wpa_test = 1;
- }
-
- if (tx->sta) {
- test = tx->sta->wpa_trigger;
- tx->sta->wpa_trigger &=
- ~(WPA_TRIGGER_TX_REPLAY | WPA_TRIGGER_TX_REPLAY_FRAG |
- WPA_TRIGGER_TX_SKIP_SEQ);
- } else {
- test = tx->local->wpa_trigger;
- tx->local->wpa_trigger &=
- ~(WPA_TRIGGER_TX_REPLAY | WPA_TRIGGER_TX_REPLAY_FRAG |
- WPA_TRIGGER_TX_SKIP_SEQ);
- }
- if (test &
- (WPA_TRIGGER_TX_REPLAY | WPA_TRIGGER_TX_REPLAY_FRAG |
- WPA_TRIGGER_TX_SKIP_SEQ)) {
- printk(KERN_INFO "%s: WPA testing - TKIP TX packet number "
- "%s%s%s%s\n", tx->dev->name,
- tx->sta ? "[UNICAST]" : "[MULTICAST]",
- test & WPA_TRIGGER_TX_REPLAY ? "[REPLAY]" : "",
- test & WPA_TRIGGER_TX_REPLAY_FRAG ?
- "[REPLAY FRAG]" : "",
- test & WPA_TRIGGER_TX_SKIP_SEQ ? "[SKIP SEQ]" : "");
- }
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
- if (!tx->key->force_sw_encrypt &&
- !(tx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV) &&
- !wpa_test) {
- /* hwaccel - with no need for preallocated room for IV/ICV */
- tx->u.tx.control->key_idx = tx->key->hw_key_idx;
- return TXRX_CONTINUE;
- }
-
- if (tkip_encrypt_skb(tx, skb, test) < 0)
- return TXRX_DROP;
-
- if (tx->u.tx.extra_frag) {
- int i;
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (test & WPA_TRIGGER_TX_REPLAY_FRAG)
- test |= WPA_TRIGGER_TX_REPLAY;
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
- 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 TXRX_DROP;
- }
- }
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (tx->sta && tx->sta->wpa_trigger & WPA_TRIGGER_FAIL_TX_ICV) {
- printk(KERN_INFO "%s: WPA testing - corrupting TX TKIP ICV "
- "for STA " MAC_FMT "\n",
- tx->dev->name, MAC_ARG(tx->sta->addr));
- tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID;
- tx->sta->wpa_trigger &= ~WPA_TRIGGER_FAIL_TX_ICV;
- skb->data[skb->len - 1]++;
- } else if (!tx->u.tx.unicast &&
- tx->local->wpa_trigger & WPA_TRIGGER_FAIL_TX_ICV) {
- printk(KERN_INFO "%s: WPA testing - corrupting TX TKIP ICV "
- "for Group Key\n",
- tx->dev->name);
- tx->u.tx.control->key_idx = HW_KEY_IDX_INVALID;
- tx->local->wpa_trigger &= ~WPA_TRIGGER_FAIL_TX_ICV;
- skb->data[skb->len - 1]++;
- }
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
- return TXRX_CONTINUE;
-}
-
-
-ieee80211_txrx_result
-ieee80211_rx_h_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;
-
- fc = le16_to_cpu(hdr->frame_control);
- hdrlen = ieee80211_get_hdrlen(fc);
-
- if (!rx->key || rx->key->alg != ALG_TKIP ||
- !(rx->fc & IEEE80211_FCTL_PROTECTED) ||
- (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
- return TXRX_CONTINUE;
-
- if (!rx->sta || skb->len - hdrlen < 12)
- return TXRX_DROP;
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (rx->sta && rx->sta->wpa_trigger & WPA_TRIGGER_FAIL_RX_ICV) {
- printk(KERN_INFO "%s: WPA testing - corrupting RX TKIP ICV "
- "for STA " MAC_FMT "\n",
- rx->dev->name, MAC_ARG(rx->sta->addr));
- rx->sta->wpa_trigger &= ~WPA_TRIGGER_FAIL_RX_ICV;
- skb->data[skb->len - 1]++;
- wpa_test = 1;
- }
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
- if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
- !rx->key->force_sw_encrypt) {
- if (!(rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV)) {
- /* Hardware takes care of all processing, including
- * replay protection, so no need to continue here. */
- return TXRX_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);
- if (res != TKIP_DECRYPT_OK || wpa_test) {
- printk(KERN_DEBUG "%s: TKIP decrypt failed for RX frame from "
- MAC_FMT " (res=%d)\n",
- rx->dev->name, MAC_ARG(rx->sta->addr), res);
- return TXRX_DROP;
- }
-
- /* 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 TXRX_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;
-
- tailneed = !key->force_sw_encrypt ? 0 : 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;
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (test & WPA_TRIGGER_TX_REPLAY)
- goto skip_pn_inc;
-pn_inc:
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
- for (i = CCMP_PN_LEN - 1; i >= 0; i--) {
- pn[i]++;
- if (pn[i])
- break;
- }
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (test & WPA_TRIGGER_TX_SKIP_SEQ) {
- test = 0;
- goto pn_inc;
- }
-skip_pn_inc:
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
- ccmp_pn2hdr(pos, pn, key->keyidx);
-
- if (!key->force_sw_encrypt) {
- /* hwaccel - with preallocated room for CCMP header */
- tx->u.tx.control->key_idx = key->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_txrx_result
-ieee80211_tx_h_ccmp_encrypt(struct ieee80211_txrx_data *tx)
-{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
- struct ieee80211_key *key = tx->key;
- u16 fc;
- struct sk_buff *skb = tx->skb;
- int test = 0;
-
- fc = le16_to_cpu(hdr->frame_control);
-
- if (!key || key->alg != ALG_CCMP || !WLAN_FC_DATA_PRESENT(fc))
- return TXRX_CONTINUE;
-
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (tx->sta) {
- test = tx->sta->wpa_trigger;
- tx->sta->wpa_trigger = 0;
- } else {
- test = tx->local->wpa_trigger;
- tx->local->wpa_trigger = 0;
- }
- if (test &
- (WPA_TRIGGER_TX_REPLAY | WPA_TRIGGER_TX_REPLAY_FRAG |
- WPA_TRIGGER_TX_SKIP_SEQ)) {
- printk(KERN_INFO "%s: WPA testing - CCMP TX packet number "
- "%s%s%s%s\n", tx->dev->name,
- tx->sta ? "[UNICAST]" : "[MULTICAST]",
- test & WPA_TRIGGER_TX_REPLAY ? "[REPLAY]" : "",
- test & WPA_TRIGGER_TX_REPLAY_FRAG ?
- "[REPLAY FRAG]" : "",
- test & WPA_TRIGGER_TX_SKIP_SEQ ? "[SKIP SEQ]" : "");
- }
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-
- 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->force_sw_encrypt &&
- !(tx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV)) {
- /* hwaccel - with no need for preallocated room for CCMP "
- * header or MIC fields */
- tx->u.tx.control->key_idx = tx->key->hw_key_idx;
- return TXRX_CONTINUE;
- }
-
- if (ccmp_encrypt_skb(tx, skb, test) < 0)
- return TXRX_DROP;
-
- if (tx->u.tx.extra_frag) {
- int i;
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- if (test & WPA_TRIGGER_TX_REPLAY_FRAG)
- test |= WPA_TRIGGER_TX_REPLAY;
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
- 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 TXRX_DROP;
- }
- }
-
- return TXRX_CONTINUE;
-}
-
-
-ieee80211_txrx_result
-ieee80211_rx_h_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;
-
- fc = le16_to_cpu(hdr->frame_control);
- hdrlen = ieee80211_get_hdrlen(fc);
-
- if (!key || key->alg != ALG_CCMP ||
- !(rx->fc & IEEE80211_FCTL_PROTECTED) ||
- (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
- return TXRX_CONTINUE;
-
- data_len = skb->len - hdrlen - CCMP_HDR_LEN - CCMP_MIC_LEN;
- if (!rx->sta || data_len < 0)
- return TXRX_DROP;
-
- if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
- !key->force_sw_encrypt &&
- !(rx->local->hw.flags & IEEE80211_HW_WEP_INCLUDE_IV))
- return TXRX_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_D80211_DEBUG
- u8 *ppn = key->u.ccmp.rx_pn[rx->u.rx.queue];
- printk(KERN_DEBUG "%s: CCMP replay detected for RX frame from "
- MAC_FMT " (RX PN %02x%02x%02x%02x%02x%02x <= prev. PN "
- "%02x%02x%02x%02x%02x%02x)\n", rx->dev->name,
- MAC_ARG(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_D80211_DEBUG */
- key->u.ccmp.replays++;
- return TXRX_DROP;
- }
-
- if ((rx->u.rx.status->flag & RX_FLAG_DECRYPTED) &&
- !key->force_sw_encrypt) {
- /* hwaccel has already decrypted frame and verified MIC */
- } else {
- 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)) {
- printk(KERN_DEBUG "%s: CCMP decrypt failed for RX "
- "frame from " MAC_FMT "\n", rx->dev->name,
- MAC_ARG(rx->sta->addr));
- return TXRX_DROP;
- }
- }
-
- 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 TXRX_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_txrx_result
-ieee80211_tx_h_michael_mic_add(struct ieee80211_txrx_data *tx);
-ieee80211_txrx_result
-ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx);
-
-ieee80211_txrx_result
-ieee80211_tx_h_tkip_encrypt(struct ieee80211_txrx_data *tx);
-ieee80211_txrx_result
-ieee80211_rx_h_tkip_decrypt(struct ieee80211_txrx_data *rx);
-
-ieee80211_txrx_result
-ieee80211_tx_h_ccmp_encrypt(struct ieee80211_txrx_data *tx);
-ieee80211_txrx_result
-ieee80211_rx_h_ccmp_decrypt(struct ieee80211_txrx_data *rx);
-
-int ieee80211_get_hdr_info(const struct sk_buff *skb, u8 **sa, u8 **da,
- u8 *qos_tid, u8 **data, size_t *data_len);
-
-#endif /* WPA_H */
projects / openwrt / staging / chunkeey.git / commitdiff