openwrt/target/linux/package/ieee80211-dscape/src/ieee80211_i.h

   1 /*
   2  * Copyright 2002-2005, Instant802 Networks, Inc.
   3  * Copyright 2005, Devicescape Software, Inc.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  */
   9
  10 #ifndef IEEE80211_I_H
  11 #define IEEE80211_I_H
  12
  13 /* ieee80211.o internal definitions, etc. These are not included into
  14  * low-level drivers. */
  15
  16 #ifndef ETH_P_PAE
  17 #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
  18 #endif /* ETH_P_PAE */
  19
  20 #define IEEE80211_MAX_SSID_LEN 32
  21
  22 struct ieee80211_local;
  23
  24 #include "ieee80211_key.h"
  25 #include "sta_info.h"
  26
  27 #define BIT(x) (1 << (x))
  28
  29 #define IEEE80211_ALIGN32_PAD(a) ((4 - ((a) & 3)) & 3)
  30
  31
  32 /* Maximum number of broadcast/multicast frames to buffer when some of the
  33  * associated stations are using power saving. */
  34 #define AP_MAX_BC_BUFFER 128
  35
  36 /* Maximum number of frames buffered to all STAs, including multicast frames.
  37  * Note: increasing this limit increases the potential memory requirement. Each
  38  * frame can be up to about 2 kB long. */
  39 #define TOTAL_MAX_TX_BUFFER 512
  40
  41
  42 #define MAC2STR(a) ((a)[0] & 0xff), ((a)[1] & 0xff), ((a)[2] & 0xff), \
  43                    ((a)[3] & 0xff), ((a)[4] & 0xff), ((a)[5] & 0xff)
  44 #define MACSTR "%02x:%02x:%02x:%02x:%02x:%02x"
  45
  46 #define MULTICAST_ADDR(a) ((a)[0] & 0x01)
  47
  48
  49 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
  50  * reception of at least three fragmented frames. This limit can be increased
  51  * by changing this define, at the cost of slower frame reassembly and
  52  * increased memory use (about 2 kB of RAM per entry). */
  53 #define IEEE80211_FRAGMENT_MAX 4
  54
  55 struct ieee80211_fragment_entry {
  56         unsigned long first_frag_time;
  57         unsigned int seq;
  58         unsigned int rx_queue;
  59         unsigned int last_frag;
  60         struct sk_buff *skb;
  61         int ccmp; /* Whether fragments were encrypted with CCMP */
  62         u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
  63 };
  64
  65
  66 struct ieee80211_sta_bss {
  67         struct list_head list;
  68         struct ieee80211_sta_bss *hnext;
  69         atomic_t users;
  70
  71         u8 bssid[ETH_ALEN];
  72         u8 ssid[IEEE80211_MAX_SSID_LEN];
  73         size_t ssid_len;
  74         u16 capability; /* host byte order */
  75         int hw_mode;
  76         int channel;
  77         int freq;
  78         int rssi;
  79         u8 *wpa_ie;
  80         size_t wpa_ie_len;
  81         u8 *rsn_ie;
  82         size_t rsn_ie_len;
  83         u8 *wmm_ie;
  84         size_t wmm_ie_len;
  85 #define IEEE80211_MAX_SUPP_RATES 32
  86         u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
  87         size_t supp_rates_len;
  88         int beacon_int;
  89         u64 timestamp;
  90
  91         int probe_resp;
  92         unsigned long last_update;
  93
  94 };
  95
  96
  97 typedef enum {
  98         TXRX_CONTINUE, TXRX_DROP, TXRX_QUEUED
  99 } ieee80211_txrx_result;
 100
 101 struct ieee80211_txrx_data {
 102         struct sk_buff *skb;
 103         struct net_device *dev;
 104         struct ieee80211_local *local;
 105         struct ieee80211_sub_if_data *sdata;
 106         struct sta_info *sta;
 107         u16 fc, ethertype;
 108         struct ieee80211_key *key;
 109         unsigned int fragmented:1; /* whether the MSDU was fragmented */
 110         union {
 111                 struct {
 112                         struct ieee80211_tx_control *control;
 113                         int unicast:1;
 114                         int ps_buffered:1;
 115                         int short_preamble:1;
 116                         int probe_last_frag:1;
 117                         struct ieee80211_rate *rate;
 118                         /* use this rate (if set) for last fragment; rate can
 119                          * be set to lower rate for the first fragments, e.g.,
 120                          * when using CTS protection with IEEE 802.11g. */
 121                         struct ieee80211_rate *last_frag_rate;
 122                         int last_frag_rateidx;
 123                         int mgmt_interface;
 124
 125                         /* Extra fragments (in addition to the first fragment
 126                          * in skb) */
 127                         int num_extra_frag;
 128                         struct sk_buff **extra_frag;
 129                 } tx;
 130                 struct {
 131                         struct ieee80211_rx_status *status;
 132                         int sent_ps_buffered;
 133                         int queue;
 134                 } rx;
 135         } u;
 136 #ifdef CONFIG_HOSTAPD_WPA_TESTING
 137         int wpa_test;
 138 #endif /* CONFIG_HOSTAPD_WPA_TESTING */
 139 };
 140
 141 struct ieee80211_passive_scan {
 142         unsigned int in_scan:1; /* this must be cleared before calling
 143                                  * netif_oper(WAKEUP) */
 144         unsigned int our_mode_only:1; /* only scan our physical mode a/b/g/etc
 145                                        */
 146         int interval; /* time in seconds between scans */
 147         int time; /* time in microseconds to scan for */
 148         int channel; /* channel to be scanned */
 149         int tries;
 150
 151         int mode_idx;
 152         int chan_idx;
 153
 154         int freq;
 155         int rx_packets;
 156         int rx_beacon;
 157         int txrx_count;
 158
 159         struct timer_list timer;
 160
 161         struct sk_buff *skb; /* skb to transmit before changing channels,
 162                               * maybe null for none */
 163         struct ieee80211_tx_control tx_control;
 164
 165         unsigned int num_scans;
 166 };
 167
 168 typedef ieee80211_txrx_result (*ieee80211_tx_handler)
 169 (struct ieee80211_txrx_data *tx);
 170
 171 typedef ieee80211_txrx_result (*ieee80211_rx_handler)
 172 (struct ieee80211_txrx_data *rx);
 173
 174 struct ieee80211_if_norm {
 175         u8 *beacon_head, *beacon_tail;
 176         int beacon_head_len, beacon_tail_len;
 177
 178         /* TODO: sta_aid could be replaced by 2008-bit large bitfield of
 179          * that could be used in TIM element generation. This would also
 180          * make TIM element generation a bit faster. */
 181         /* AID mapping to station data. NULL, if AID is free. AID is in the
 182          * range 1..2007 and sta_aid[i] corresponds to AID i+1. */
 183         struct sta_info *sta_aid[MAX_AID_TABLE_SIZE];
 184         int max_aid; /* largest aid currently in use */
 185         atomic_t num_sta_ps; /* number of stations in PS mode */
 186         struct sk_buff_head ps_bc_buf;
 187         int dtim_period, dtim_count;
 188         int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
 189         int max_ratectrl_rateidx; /* max TX rateidx for rate control */
 190         int num_beacons; /* number of TXed beacon frames for this BSS */
 191 };
 192
 193 struct ieee80211_if_wds {
 194         u8 remote_addr[ETH_ALEN];
 195         struct sta_info *sta;
 196 };
 197
 198 struct ieee80211_if_vlan {
 199         u8 id;
 200 };
 201
 202 struct ieee80211_if_sta {
 203         enum {
 204                 IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
 205                 IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
 206                 IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
 207         } state;
 208         struct timer_list timer;
 209         u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
 210         u8 ssid[IEEE80211_MAX_SSID_LEN];
 211         size_t ssid_len;
 212         u16 aid;
 213         u16 ap_capab, capab;
 214         u8 *extra_ie; /* to be added to the end of AssocReq */
 215         size_t extra_ie_len;
 216
 217         /* The last AssocReq/Resp IEs */
 218         u8 *assocreq_ies, *assocresp_ies;
 219         size_t assocreq_ies_len, assocresp_ies_len;
 220
 221         int auth_tries, assoc_tries;
 222
 223         int ssid_set:1;
 224         int bssid_set:1;
 225         int prev_bssid_set:1;
 226         int authenticated:1;
 227         int associated:1;
 228         int probereq_poll:1;
 229         int use_protection:1;
 230         int create_ibss:1;
 231         int mixed_cell:1;
 232         int wmm_enabled:1;
 233
 234         int key_mgmt;
 235         unsigned long last_probe;
 236
 237 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
 238 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
 239 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
 240         unsigned int auth_algs; /* bitfield of allowed auth algs */
 241         int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
 242         int auth_transaction;
 243
 244         unsigned long ibss_join_req;
 245         struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
 246         u32 supp_rates_bits;
 247
 248         int wmm_last_param_set;
 249 };
 250
 251
 252 #define IEEE80211_SUB_IF_TYPE_NORM 0x00000000
 253 #define IEEE80211_SUB_IF_TYPE_MGMT 0x00000001
 254 #define IEEE80211_SUB_IF_TYPE_STA  0x00000002
 255 #define IEEE80211_SUB_IF_TYPE_WDS  0x5A580211
 256 #define IEEE80211_SUB_IF_TYPE_VLAN 0x00080211
 257
 258 struct ieee80211_sub_if_data {
 259         struct list_head list;
 260         unsigned int type;
 261
 262         struct net_device *dev;
 263         struct net_device *master;
 264         struct ieee80211_local *local;
 265
 266         struct net_device_stats stats;
 267         int drop_unencrypted;
 268         int eapol; /* 0 = process EAPOL frames as normal data frames,
 269                     * 1 = send EAPOL frames through wlan#ap to hostapd
 270                     *     (default) */
 271         int ieee802_1x; /* IEEE 802.1X PAE - drop packet to/from unauthorized
 272                          * port */
 273
 274 #define NUM_DEFAULT_KEYS 4
 275         struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
 276         struct ieee80211_key *default_key;
 277
 278         struct ieee80211_if_norm *bss; /* BSS that this device belongs to */
 279
 280         union {
 281                 struct ieee80211_if_norm norm;
 282                 struct ieee80211_if_wds wds;
 283                 struct ieee80211_if_vlan vlan;
 284                 struct ieee80211_if_sta sta;
 285         } u;
 286         int channel_use;
 287         int channel_use_raw;
 288 };
 289
 290 #define IEEE80211_DEV_TO_SUB_IF(dev) ((struct ieee80211_sub_if_data *) \
 291                      (((long)dev + sizeof(struct net_device) + 3) & ~3))
 292
 293
 294 struct ieee80211_local {
 295         struct ieee80211_hw *hw;
 296         void *hw_priv;
 297         struct net_device *mdev; /* wlan#.11 - "master" 802.11 device */
 298         struct net_device *wdev; /* wlan# - default Ethernet (data) devide */
 299         struct net_device *apdev; /* wlan#ap - management frames (hostapd) */
 300         int open_count;
 301         struct ieee80211_conf conf;
 302
 303         /* Tasklet and skb queue to process calls from IRQ mode. All frames
 304          * added to skb_queue will be processed, but frames in
 305          * skb_queue_unreliable may be dropped if the total length of these
 306          * queues increases over the limit. */
 307 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
 308         struct tasklet_struct tasklet;
 309         struct sk_buff_head skb_queue;
 310         struct sk_buff_head skb_queue_unreliable;
 311         enum {
 312                 ieee80211_rx_msg = 1,
 313                 ieee80211_tx_status_msg = 2
 314         } ieee80211_msg_enum;
 315
 316         spinlock_t generic_lock;
 317         /* Station data structures */
 318         spinlock_t sta_lock; /* mutex for STA data structures */
 319         int num_sta; /* number of stations in sta_list */
 320         struct list_head sta_list;
 321         struct sta_info *sta_hash[STA_HASH_SIZE];
 322         struct timer_list sta_cleanup;
 323
 324         /* Current rate table. This is a pointer to hw->modes structure. */
 325         struct ieee80211_rate *curr_rates;
 326         int num_curr_rates;
 327
 328         void *rate_ctrl_priv;
 329         struct rate_control_ops *rate_ctrl;
 330
 331         int next_mode; /* MODE_IEEE80211*
 332                         * The mode preference for next channel change. This is
 333                         * used to select .11g vs. .11b channels (or 4.9 GHz vs.
 334                         * .11a) when the channel number is not unique. */
 335
 336         /* Supported and basic rate filters for different modes. These are
 337          * pointers to -1 terminated lists and rates in 100 kbps units. */
 338         int *supp_rates[NUM_IEEE80211_MODES];
 339         int *basic_rates[NUM_IEEE80211_MODES];
 340
 341         int rts_threshold;
 342         int cts_protect_erp_frames;
 343         int fragmentation_threshold;
 344         int short_retry_limit; /* dot11ShortRetryLimit */
 345         int long_retry_limit; /* dot11LongRetryLimit */
 346         int short_preamble; /* use short preamble with IEEE 802.11b */
 347
 348         u32 wep_iv;
 349         int key_tx_rx_threshold; /* number of times any key can be used in TX
 350                                   * or RX before generating a rekey
 351                                   * notification; 0 = notification disabled. */
 352
 353         /* Fragment table for host-based reassembly */
 354         struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
 355         unsigned int fragment_next;
 356
 357         int bridge_packets; /* bridge packets between associated stations and
 358                              * deliver multicast frames both back to wireless
 359                              * media and to the local net stack */
 360
 361         struct ieee80211_passive_scan scan;
 362
 363
 364         ieee80211_rx_handler *rx_handlers;
 365         ieee80211_tx_handler *tx_handlers;
 366
 367         spinlock_t sub_if_lock; /* mutex for STA data structures */
 368         struct list_head sub_if_list;
 369         struct net_device **bss_devs; /* pointer to IF_TYPE_NORM devices for
 370                                        * quick access to BSS data */
 371         int bss_dev_count; /* number of used entries in bss_devs; note: the
 372                             * total size of bss_devs array is stored in
 373                             * conf.bss_count */
 374         struct net_device **sta_devs; /* pointer to IF_TYPE_STA devices */
 375         int sta_dev_count; /* number of used entries in sta_devs */
 376         int sta_scanning;
 377         int scan_hw_mode_idx;
 378         int scan_channel_idx;
 379         enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
 380         unsigned long last_scan_completed;
 381         struct timer_list scan_timer;
 382         int scan_oper_channel;
 383         int scan_oper_channel_val;
 384         int scan_oper_power_level;
 385         int scan_oper_freq;
 386         int scan_oper_phymode;
 387         int scan_oper_antenna_max;
 388         u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
 389         size_t scan_ssid_len;
 390         int scan_skip_11b;
 391         struct list_head sta_bss_list;
 392         struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
 393         spinlock_t sta_bss_lock;
 394 #define IEEE80211_SCAN_MATCH_SSID BIT(0)
 395 #define IEEE80211_SCAN_WPA_ONLY BIT(1)
 396 #define IEEE80211_SCAN_EXTRA_INFO BIT(2)
 397         int scan_flags;
 398
 399 #ifdef CONFIG_HOSTAPD_WPA_TESTING
 400         u32 wpa_trigger;
 401 #endif /* CONFIG_HOSTAPD_WPA_TESTING */
 402         /* SNMP counters */
 403         /* dot11CountersTable */
 404         u32 dot11TransmittedFragmentCount;
 405         u32 dot11MulticastTransmittedFrameCount;
 406         u32 dot11FailedCount;
 407         u32 dot11RetryCount;
 408         u32 dot11MultipleRetryCount;
 409         u32 dot11FrameDuplicateCount;
 410         u32 dot11ReceivedFragmentCount;
 411         u32 dot11MulticastReceivedFrameCount;
 412         u32 dot11TransmittedFrameCount;
 413         u32 dot11WEPUndecryptableCount;
 414
 415         int tx_led_counter;
 416
 417         u32 channel_use;
 418         u32 channel_use_raw;
 419         u32 stat_time;
 420         struct timer_list stat_timer;
 421
 422         u8 bssid[ETH_ALEN]; /* BSSID for STA modes (Adhoc/Managed) */
 423         struct timer_list rate_limit_timer;
 424         u32 rate_limit;
 425         u32 rate_limit_burst;
 426         u32 rate_limit_bucket;
 427         struct proc_dir_entry *proc, *proc_sta, *proc_iface;
 428
 429         struct work_struct sta_proc_add;
 430
 431         enum {
 432                 STA_ANTENNA_SEL_AUTO = 0,
 433                 STA_ANTENNA_SEL_SW_CTRL = 1,
 434                 STA_ANTENNA_SEL_SW_CTRL_DEBUG = 2
 435         } sta_antenna_sel;
 436
 437         int rate_ctrl_num_up, rate_ctrl_num_down;
 438
 439 #ifdef CONFIG_IEEE80211_DEBUG_COUNTERS
 440         /* TX/RX handler statistics */
 441         unsigned int tx_handlers_drop;
 442         unsigned int tx_handlers_queued;
 443         unsigned int tx_handlers_drop_unencrypted;
 444         unsigned int tx_handlers_drop_fragment;
 445         unsigned int tx_handlers_drop_wep;
 446         unsigned int tx_handlers_drop_rate_limit;
 447         unsigned int tx_handlers_drop_not_assoc;
 448         unsigned int tx_handlers_drop_unauth_port;
 449         unsigned int rx_handlers_drop;
 450         unsigned int rx_handlers_queued;
 451         unsigned int rx_handlers_drop_nullfunc;
 452         unsigned int rx_handlers_drop_defrag;
 453         unsigned int rx_handlers_drop_short;
 454         unsigned int rx_handlers_drop_passive_scan;
 455         unsigned int tx_expand_skb_head;
 456         unsigned int tx_expand_skb_head_cloned;
 457         unsigned int rx_expand_skb_head;
 458         unsigned int rx_expand_skb_head2;
 459         unsigned int rx_handlers_fragments;
 460         unsigned int tx_status_drop;
 461         unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
 462         unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
 463 #define I802_DEBUG_INC(c) (c)++
 464 #else /* CONFIG_IEEE80211_DEBUG_COUNTERS */
 465 #define I802_DEBUG_INC(c) do { } while (0)
 466 #endif /* CONFIG_IEEE80211_DEBUG_COUNTERS */
 467
 468
 469         int default_wep_only; /* only default WEP keys are used with this
 470                                * interface; this is used to decide when hwaccel
 471                                * can be used with default keys */
 472         int total_ps_buffered; /* total number of all buffered unicast and
 473                                 * multicast packets for power saving stations
 474                                 */
 475         int allow_broadcast_always; /* whether to allow TX of broadcast frames
 476                                      * even when there are no associated STAs
 477                                      */
 478
 479         int wifi_wme_noack_test;
 480         unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
 481
 482         unsigned int hw_modes; /* bitfield of allowed hardware modes;
 483                                 * (1 << MODE_*) */
 484 };
 485
 486
 487 /* ieee80211.c */
 488 int ieee80211_hw_config(struct net_device *dev);
 489 struct ieee80211_key_conf *
 490 ieee80211_key_data2conf(struct ieee80211_local *local,
 491                         struct ieee80211_key *data);
 492 void ieee80211_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
 493                        struct ieee80211_rx_status *status, u32 msg_type);
 494 void ieee80211_prepare_rates(struct net_device *dev);
 495 void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
 496 int ieee80211_if_add_wds(struct net_device *dev,
 497                          char *name,
 498                          struct ieee80211_if_wds *wds, int locked);
 499 int ieee80211_if_add_vlan(struct net_device *dev, char *name,
 500                           struct ieee80211_if_vlan *vlan, int locked);
 501 int ieee80211_if_add_norm(struct net_device *dev, char *name, u8 *bssid,
 502                           int locked);
 503
 504 int ieee80211_if_remove_wds(struct net_device *dev, char *name, int locked);
 505 int ieee80211_if_remove_vlan(struct net_device *dev, char *name, int locked);
 506 int ieee80211_if_remove_norm(struct net_device *dev, char *name, int locked);
 507 int ieee80211_if_flush(struct net_device *dev, int locked);
 508 int ieee80211_if_update_wds(struct net_device *dev, char *name,
 509                             struct ieee80211_if_wds *wds, int locked);
 510
 511 /* ieee80211_ioctl.c */
 512 int ieee80211_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
 513 /* Set hw encryption from ieee80211 */
 514 int ieee80211_set_hw_encryption(struct net_device *dev,
 515                                 struct sta_info *sta, u8 addr[ETH_ALEN],
 516                                 struct ieee80211_key *key);
 517
 518 /* ieee80211_scan.c */
 519 void ieee80211_init_scan(struct net_device *dev);
 520 void ieee80211_stop_scan(struct net_device *dev);
 521
 522
 523
 524 /* Least common multiple of the used rates (in 100 kbps). This is used to
 525  * calculate rate_inv values for each rate so that only integers are needed. */
 526 #define CHAN_UTIL_RATE_LCM 95040
 527 /* 1 usec is 1/8 * (95040/10) = 1188 */
 528 #define CHAN_UTIL_PER_USEC 1188
 529 /* Amount of bits to shift the result right to scale the total utilization
 530  * to values that will not wrap around 32-bit integers. */
 531 #define CHAN_UTIL_SHIFT 9
 532 /* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
 533  * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
 534  * raw value with about 23 should give utilization in 10th of a percentage
 535  * (1/1000). However, utilization is only estimated and not all intervals
 536  * between frames etc. are calculated. 18 seems to give numbers that are closer
 537  * to the real maximum. */
 538 #define CHAN_UTIL_PER_10MS 18
 539 #define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
 540 #define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
 541
 542
 543
 544 /* ieee80211.c */
 545 int ieee80211_if_add_sta(struct net_device *dev, char *name, int locked);
 546 int ieee80211_if_remove_sta(struct net_device *dev, char *name, int locked);
 547 /* ieee80211_ioctl.c */
 548 int ieee80211_set_compression(struct ieee80211_local *local,
 549                               struct net_device *dev, struct sta_info *sta);
 550 /* ieee80211_sta.c */
 551 void ieee80211_sta_timer(unsigned long ptr);
 552 void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
 553                            struct ieee80211_rx_status *rx_status);
 554 int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
 555 int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
 556 int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
 557 int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
 558 int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
 559 void ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb,
 560                            struct ieee80211_rx_status *rx_status);
 561 void ieee80211_rx_bss_list_init(struct net_device *dev);
 562 void ieee80211_rx_bss_list_deinit(struct net_device *dev);
 563 int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
 564 struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
 565                                          struct sk_buff *skb, u8 *bssid,
 566                                          u8 *addr);
 567 int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
 568 int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
 569
 570
 571 #endif /* IEEE80211_I_H */