+++ /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
-
-/* 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
-
-struct ieee80211_local;
-
-#include "ieee80211_key.h"
-#include "sta_info.h"
-
-#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
-
-
-#define MAC2STR(a) ((a)[0] & 0xff), ((a)[1] & 0xff), ((a)[2] & 0xff), \
- ((a)[3] & 0xff), ((a)[4] & 0xff), ((a)[5] & 0xff)
-#define MACSTR "%02x:%02x:%02x:%02x:%02x:%02x"
-
-#define MULTICAST_ADDR(a) ((a)[0] & 0x01)
-
-
-/* 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;
- struct sk_buff *skb;
- 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;
- int unicast:1;
- int ps_buffered:1;
- int short_preamble:1;
- 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 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;
- } rx;
- } u;
-#ifdef CONFIG_HOSTAPD_WPA_TESTING
- int wpa_test;
-#endif /* CONFIG_HOSTAPD_WPA_TESTING */
-};
-
-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;
-
- int mode_idx;
- 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_norm {
- u8 *beacon_head, *beacon_tail;
- int beacon_head_len, beacon_tail_len;
-
- /* TODO: sta_aid could be replaced by 2008-bit large bitfield of
- * that could be used in TIM element generation. This would also
- * make TIM element generation a bit faster. */
- /* AID mapping to station data. NULL, if AID is free. AID is in the
- * range 1..2007 and sta_aid[i] corresponds to AID i+1. */
- struct sta_info *sta_aid[MAX_AID_TABLE_SIZE];
- int max_aid; /* largest aid currently in use */
- 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 timer_list timer;
- 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;
-
- int ssid_set:1;
- int bssid_set:1;
- int prev_bssid_set:1;
- int authenticated:1;
- int associated:1;
- int probereq_poll:1;
- int use_protection:1;
- int create_ibss:1;
- int mixed_cell:1;
- 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;
-};
-
-
-#define IEEE80211_SUB_IF_TYPE_NORM 0x00000000
-#define IEEE80211_SUB_IF_TYPE_MGMT 0x00000001
-#define IEEE80211_SUB_IF_TYPE_STA 0x00000002
-#define IEEE80211_SUB_IF_TYPE_WDS 0x5A580211
-#define IEEE80211_SUB_IF_TYPE_VLAN 0x00080211
-
-struct ieee80211_sub_if_data {
- struct list_head list;
- unsigned int type;
-
- struct net_device *dev;
- struct net_device *master;
- struct ieee80211_local *local;
-
- 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 */
-
-#define NUM_DEFAULT_KEYS 4
- struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
- struct ieee80211_key *default_key;
-
- struct ieee80211_if_norm *bss; /* BSS that this device belongs to */
-
- union {
- struct ieee80211_if_norm norm;
- struct ieee80211_if_wds wds;
- struct ieee80211_if_vlan vlan;
- struct ieee80211_if_sta sta;
- } u;
- int channel_use;
- int channel_use_raw;
-};
-
-#define IEEE80211_DEV_TO_SUB_IF(dev) ((struct ieee80211_sub_if_data *) \
- (((long)dev + sizeof(struct net_device) + 3) & ~3))
-
-
-struct ieee80211_local {
- struct ieee80211_hw *hw;
- void *hw_priv;
- struct net_device *mdev; /* wlan#.11 - "master" 802.11 device */
- struct net_device *wdev; /* wlan# - default Ethernet (data) devide */
- struct net_device *apdev; /* wlan#ap - management frames (hostapd) */
- int open_count;
- struct ieee80211_conf conf;
-
- /* 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 */
- spinlock_t sta_lock; /* mutex for STA data structures */
- int num_sta; /* number of stations in sta_list */
- struct list_head sta_list;
- struct sta_info *sta_hash[STA_HASH_SIZE];
- struct timer_list sta_cleanup;
-
- /* Current rate table. This is a pointer to hw->modes structure. */
- struct ieee80211_rate *curr_rates;
- int num_curr_rates;
-
- void *rate_ctrl_priv;
- struct rate_control_ops *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 */
-
- 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. */
-
- /* Fragment table for host-based reassembly */
- struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
- unsigned int fragment_next;
-
- 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_handlers;
- ieee80211_tx_handler *tx_handlers;
-
- spinlock_t sub_if_lock; /* mutex for STA data structures */
- struct list_head sub_if_list;
- struct net_device **bss_devs; /* pointer to IF_TYPE_NORM devices for
- * quick access to BSS data */
- int bss_dev_count; /* number of used entries in bss_devs; note: the
- * total size of bss_devs array is stored in
- * conf.bss_count */
- struct net_device **sta_devs; /* pointer to IF_TYPE_STA devices */
- int sta_dev_count; /* number of used entries in sta_devs */
- int sta_scanning;
- int scan_hw_mode_idx;
- int scan_channel_idx;
- enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
- unsigned long last_scan_completed;
- struct timer_list scan_timer;
- 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;
- int scan_skip_11b;
- 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;
-
- int tx_led_counter;
-
- u32 channel_use;
- u32 channel_use_raw;
- u32 stat_time;
- struct timer_list stat_timer;
-
- u8 bssid[ETH_ALEN]; /* BSSID for STA modes (Adhoc/Managed) */
- struct timer_list rate_limit_timer;
- u32 rate_limit;
- u32 rate_limit_burst;
- u32 rate_limit_bucket;
- 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_IEEE80211_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_rate_limit;
- 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_IEEE80211_DEBUG_COUNTERS */
-#define I802_DEBUG_INC(c) do { } while (0)
-#endif /* CONFIG_IEEE80211_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 hw_modes; /* bitfield of allowed hardware modes;
- * (1 << MODE_*) */
-};
-
-
-/* ieee80211.c */
-int ieee80211_hw_config(struct net_device *dev);
-struct ieee80211_key_conf *
-ieee80211_key_data2conf(struct ieee80211_local *local,
- struct ieee80211_key *data);
-void ieee80211_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
- struct ieee80211_rx_status *status, u32 msg_type);
-void ieee80211_prepare_rates(struct net_device *dev);
-void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
-int ieee80211_if_add_wds(struct net_device *dev,
- char *name,
- struct ieee80211_if_wds *wds, int locked);
-int ieee80211_if_add_vlan(struct net_device *dev, char *name,
- struct ieee80211_if_vlan *vlan, int locked);
-int ieee80211_if_add_norm(struct net_device *dev, char *name, u8 *bssid,
- int locked);
-
-int ieee80211_if_remove_wds(struct net_device *dev, char *name, int locked);
-int ieee80211_if_remove_vlan(struct net_device *dev, char *name, int locked);
-int ieee80211_if_remove_norm(struct net_device *dev, char *name, int locked);
-int ieee80211_if_flush(struct net_device *dev, int locked);
-int ieee80211_if_update_wds(struct net_device *dev, char *name,
- struct ieee80211_if_wds *wds, int locked);
-
-/* ieee80211_ioctl.c */
-int ieee80211_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
-/* 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);
-
-/* ieee80211_scan.c */
-void ieee80211_init_scan(struct net_device *dev);
-void ieee80211_stop_scan(struct net_device *dev);
-
-
-
-/* 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.c */
-int ieee80211_if_add_sta(struct net_device *dev, char *name, int locked);
-int ieee80211_if_remove_sta(struct net_device *dev, char *name, int locked);
-/* ieee80211_ioctl.c */
-int ieee80211_set_compression(struct ieee80211_local *local,
- struct net_device *dev, struct sta_info *sta);
-/* ieee80211_sta.c */
-void ieee80211_sta_timer(unsigned long ptr);
-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);
-
-
-#endif /* IEEE80211_I_H */
projects / openwrt / staging / mkresin.git / blobdiff