2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005, Devicescape Software, Inc.
4 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
14 #include <linux/kernel.h>
15 #include <linux/device.h>
16 #include <linux/if_ether.h>
17 #include <linux/interrupt.h>
18 #include <linux/list.h>
19 #include <linux/netdevice.h>
20 #include <linux/skbuff.h>
21 #include <linux/workqueue.h>
22 #include <linux/types.h>
23 #include <linux/spinlock.h>
24 #include <linux/etherdevice.h>
25 #include <net/wireless.h>
26 #include "ieee80211_key.h"
29 /* ieee80211.o internal definitions, etc. These are not included into
30 * low-level drivers. */
33 #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
34 #endif /* ETH_P_PAE */
36 #define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08)
38 struct ieee80211_local;
40 #define IEEE80211_ALIGN32_PAD(a) ((4 - ((a) & 3)) & 3)
42 /* Maximum number of broadcast/multicast frames to buffer when some of the
43 * associated stations are using power saving. */
44 #define AP_MAX_BC_BUFFER 128
46 /* Maximum number of frames buffered to all STAs, including multicast frames.
47 * Note: increasing this limit increases the potential memory requirement. Each
48 * frame can be up to about 2 kB long. */
49 #define TOTAL_MAX_TX_BUFFER 512
51 /* Required encryption head and tailroom */
52 #define IEEE80211_ENCRYPT_HEADROOM 8
53 #define IEEE80211_ENCRYPT_TAILROOM 12
55 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
56 * reception of at least three fragmented frames. This limit can be increased
57 * by changing this define, at the cost of slower frame reassembly and
58 * increased memory use (about 2 kB of RAM per entry). */
59 #define IEEE80211_FRAGMENT_MAX 4
61 struct ieee80211_fragment_entry {
62 unsigned long first_frag_time;
64 unsigned int rx_queue;
65 unsigned int last_frag;
66 unsigned int extra_len;
67 struct sk_buff_head skb_list;
68 int ccmp; /* Whether fragments were encrypted with CCMP */
69 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
73 struct ieee80211_sta_bss {
74 struct list_head list;
75 struct ieee80211_sta_bss *hnext;
79 u8 ssid[IEEE80211_MAX_SSID_LEN];
81 u16 capability; /* host byte order */
82 enum ieee80211_band band;
84 int rssi, signal, noise;
93 #define IEEE80211_MAX_SUPP_RATES 32
94 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
95 size_t supp_rates_len;
100 unsigned long last_update;
102 /* during assocation, we save an ERP value from a probe response so
103 * that we can feed ERP info to the driver when handling the
104 * association completes. these fields probably won't be up-to-date
105 * otherwise, you probably don't want to use them. */
111 typedef unsigned __bitwise__ ieee80211_tx_result;
112 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
113 #define TX_DROP ((__force ieee80211_tx_result) 1u)
114 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
116 typedef unsigned __bitwise__ ieee80211_rx_result;
117 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
118 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
119 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
120 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
123 /* flags used in struct ieee80211_txrx_data.flags */
124 /* whether the MSDU was fragmented */
125 #define IEEE80211_TXRXD_FRAGMENTED BIT(0)
126 #define IEEE80211_TXRXD_TXUNICAST BIT(1)
127 #define IEEE80211_TXRXD_TXPS_BUFFERED BIT(2)
128 #define IEEE80211_TXRXD_TXPROBE_LAST_FRAG BIT(3)
129 #define IEEE80211_TXRXD_RXIN_SCAN BIT(4)
130 /* frame is destined to interface currently processed (incl. multicast frames) */
131 #define IEEE80211_TXRXD_RXRA_MATCH BIT(5)
132 #define IEEE80211_TXRXD_TX_INJECTED BIT(6)
133 #define IEEE80211_TXRXD_RX_AMSDU BIT(7)
134 #define IEEE80211_TXRXD_RX_CMNTR_REPORTED BIT(8)
135 struct ieee80211_txrx_data {
137 struct net_device *dev;
138 struct ieee80211_local *local;
139 struct ieee80211_sub_if_data *sdata;
140 struct sta_info *sta;
142 struct ieee80211_key *key;
146 struct ieee80211_tx_control *control;
147 struct ieee80211_channel *channel;
148 struct ieee80211_rate *rate;
149 /* use this rate (if set) for last fragment; rate can
150 * be set to lower rate for the first fragments, e.g.,
151 * when using CTS protection with IEEE 802.11g. */
152 struct ieee80211_rate *last_frag_rate;
154 /* Extra fragments (in addition to the first fragment
157 struct sk_buff **extra_frag;
160 struct ieee80211_rx_status *status;
161 struct ieee80211_rate *rate;
162 int sent_ps_buffered;
171 /* flags used in struct ieee80211_tx_packet_data.flags */
172 #define IEEE80211_TXPD_REQ_TX_STATUS BIT(0)
173 #define IEEE80211_TXPD_DO_NOT_ENCRYPT BIT(1)
174 #define IEEE80211_TXPD_REQUEUE BIT(2)
175 #define IEEE80211_TXPD_EAPOL_FRAME BIT(3)
176 #define IEEE80211_TXPD_AMPDU BIT(4)
177 /* Stored in sk_buff->cb */
178 struct ieee80211_tx_packet_data {
180 unsigned long jiffies;
185 struct ieee80211_tx_stored_packet {
186 struct ieee80211_tx_control control;
189 struct sk_buff **extra_frag;
190 struct ieee80211_rate *last_frag_rate;
191 unsigned int last_frag_rate_ctrl_probe;
196 int head_len, tail_len;
200 struct ieee80211_if_ap {
201 struct beacon_data *beacon;
203 struct list_head vlans;
205 u8 ssid[IEEE80211_MAX_SSID_LEN];
208 /* yes, this looks ugly, but guarantees that we can later use
210 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
211 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
212 atomic_t num_sta_ps; /* number of stations in PS mode */
213 struct sk_buff_head ps_bc_buf;
215 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
216 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
217 int num_beacons; /* number of TXed beacon frames for this BSS */
220 struct ieee80211_if_wds {
221 u8 remote_addr[ETH_ALEN];
222 struct sta_info *sta;
225 struct ieee80211_if_vlan {
226 struct ieee80211_sub_if_data *ap;
227 struct list_head list;
230 /* flags used in struct ieee80211_if_sta.flags */
231 #define IEEE80211_STA_SSID_SET BIT(0)
232 #define IEEE80211_STA_BSSID_SET BIT(1)
233 #define IEEE80211_STA_PREV_BSSID_SET BIT(2)
234 #define IEEE80211_STA_AUTHENTICATED BIT(3)
235 #define IEEE80211_STA_ASSOCIATED BIT(4)
236 #define IEEE80211_STA_PROBEREQ_POLL BIT(5)
237 #define IEEE80211_STA_CREATE_IBSS BIT(6)
238 #define IEEE80211_STA_MIXED_CELL BIT(7)
239 #define IEEE80211_STA_WMM_ENABLED BIT(8)
240 #define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
241 #define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
242 #define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
243 #define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
244 struct ieee80211_if_sta {
246 IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
247 IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
248 IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
250 struct timer_list timer;
251 struct work_struct work;
252 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
253 u8 ssid[IEEE80211_MAX_SSID_LEN];
255 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
256 size_t scan_ssid_len;
259 u8 *extra_ie; /* to be added to the end of AssocReq */
262 /* The last AssocReq/Resp IEs */
263 u8 *assocreq_ies, *assocresp_ies;
264 size_t assocreq_ies_len, assocresp_ies_len;
266 int auth_tries, assoc_tries;
269 #define IEEE80211_STA_REQ_SCAN 0
270 #define IEEE80211_STA_REQ_AUTH 1
271 #define IEEE80211_STA_REQ_RUN 2
272 unsigned long request;
273 struct sk_buff_head skb_queue;
275 unsigned long last_probe;
277 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
278 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
279 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
280 unsigned int auth_algs; /* bitfield of allowed auth algs */
281 int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
282 int auth_transaction;
284 unsigned long ibss_join_req;
285 struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
286 u32 supp_rates_bits[IEEE80211_NUM_BANDS];
288 int wmm_last_param_set;
292 /* flags used in struct ieee80211_sub_if_data.flags */
293 #define IEEE80211_SDATA_ALLMULTI BIT(0)
294 #define IEEE80211_SDATA_PROMISC BIT(1)
295 #define IEEE80211_SDATA_USERSPACE_MLME BIT(2)
296 #define IEEE80211_SDATA_OPERATING_GMODE BIT(3)
297 struct ieee80211_sub_if_data {
298 struct list_head list;
300 struct wireless_dev wdev;
303 struct list_head key_list;
305 struct net_device *dev;
306 struct ieee80211_local *local;
310 int drop_unencrypted;
313 * basic rates of this AP or the AP we're associated to
319 /* Fragment table for host-based reassembly */
320 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
321 unsigned int fragment_next;
323 #define NUM_DEFAULT_KEYS 4
324 struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
325 struct ieee80211_key *default_key;
328 * BSS configuration for this interface.
330 * FIXME: I feel bad putting this here when we already have a
331 * bss pointer, but the bss pointer is just wrong when
332 * you have multiple virtual STA mode interfaces...
333 * This needs to be fixed.
335 struct ieee80211_bss_conf bss_conf;
336 struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
339 struct ieee80211_if_ap ap;
340 struct ieee80211_if_wds wds;
341 struct ieee80211_if_vlan vlan;
342 struct ieee80211_if_sta sta;
348 #ifdef CONFIG_MAC80211_DEBUGFS
349 struct dentry *debugfsdir;
352 struct dentry *channel_use;
353 struct dentry *drop_unencrypted;
354 struct dentry *state;
355 struct dentry *bssid;
356 struct dentry *prev_bssid;
357 struct dentry *ssid_len;
359 struct dentry *ap_capab;
360 struct dentry *capab;
361 struct dentry *extra_ie_len;
362 struct dentry *auth_tries;
363 struct dentry *assoc_tries;
364 struct dentry *auth_algs;
365 struct dentry *auth_alg;
366 struct dentry *auth_transaction;
367 struct dentry *flags;
370 struct dentry *channel_use;
371 struct dentry *drop_unencrypted;
372 struct dentry *num_sta_ps;
373 struct dentry *dtim_count;
374 struct dentry *num_beacons;
375 struct dentry *force_unicast_rateidx;
376 struct dentry *max_ratectrl_rateidx;
377 struct dentry *num_buffered_multicast;
380 struct dentry *channel_use;
381 struct dentry *drop_unencrypted;
385 struct dentry *channel_use;
386 struct dentry *drop_unencrypted;
391 struct dentry *default_key;
394 /* must be last, dynamically sized area in this! */
395 struct ieee80211_vif vif;
399 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
401 return container_of(p, struct ieee80211_sub_if_data, vif);
404 #define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
407 IEEE80211_RX_MSG = 1,
408 IEEE80211_TX_STATUS_MSG = 2,
409 IEEE80211_DELBA_MSG = 3,
410 IEEE80211_ADDBA_MSG = 4,
413 struct ieee80211_local {
414 /* embed the driver visible part.
415 * don't cast (use the static inlines below), but we keep
416 * it first anyway so they become a no-op */
417 struct ieee80211_hw hw;
419 const struct ieee80211_ops *ops;
421 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
423 int monitors, cooked_mntrs;
424 /* number of interfaces with corresponding FIF_ flags */
425 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss;
426 unsigned int filter_flags; /* FIF_* */
427 struct iw_statistics wstats;
429 int tx_headroom; /* required headroom for hardware/radiotap */
432 IEEE80211_DEV_UNINITIALIZED = 0,
433 IEEE80211_DEV_REGISTERED,
434 IEEE80211_DEV_UNREGISTERED,
437 /* Tasklet and skb queue to process calls from IRQ mode. All frames
438 * added to skb_queue will be processed, but frames in
439 * skb_queue_unreliable may be dropped if the total length of these
440 * queues increases over the limit. */
441 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
442 struct tasklet_struct tasklet;
443 struct sk_buff_head skb_queue;
444 struct sk_buff_head skb_queue_unreliable;
446 /* Station data structures */
447 rwlock_t sta_lock; /* protects STA data structures */
448 int num_sta; /* number of stations in sta_list */
449 struct list_head sta_list;
450 struct sta_info *sta_hash[STA_HASH_SIZE];
451 struct timer_list sta_cleanup;
453 unsigned long state[NUM_TX_DATA_QUEUES_AMPDU];
454 struct ieee80211_tx_stored_packet pending_packet[NUM_TX_DATA_QUEUES_AMPDU];
455 struct tasklet_struct tx_pending_tasklet;
457 /* number of interfaces with corresponding IFF_ flags */
458 atomic_t iff_allmultis, iff_promiscs;
460 struct rate_control_ref *rate_ctrl;
463 int fragmentation_threshold;
464 int short_retry_limit; /* dot11ShortRetryLimit */
465 int long_retry_limit; /* dot11LongRetryLimit */
467 struct crypto_blkcipher *wep_tx_tfm;
468 struct crypto_blkcipher *wep_rx_tfm;
471 int bridge_packets; /* bridge packets between associated stations and
472 * deliver multicast frames both back to wireless
473 * media and to the local net stack */
475 struct list_head interfaces;
477 bool sta_sw_scanning;
478 bool sta_hw_scanning;
479 int scan_channel_idx;
480 enum ieee80211_band scan_band;
482 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
483 unsigned long last_scan_completed;
484 struct delayed_work scan_work;
485 struct net_device *scan_dev;
486 struct ieee80211_channel *oper_channel, *scan_channel;
487 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
488 size_t scan_ssid_len;
489 struct list_head sta_bss_list;
490 struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
491 spinlock_t sta_bss_lock;
494 /* dot11CountersTable */
495 u32 dot11TransmittedFragmentCount;
496 u32 dot11MulticastTransmittedFrameCount;
497 u32 dot11FailedCount;
499 u32 dot11MultipleRetryCount;
500 u32 dot11FrameDuplicateCount;
501 u32 dot11ReceivedFragmentCount;
502 u32 dot11MulticastReceivedFrameCount;
503 u32 dot11TransmittedFrameCount;
504 u32 dot11WEPUndecryptableCount;
506 #ifdef CONFIG_MAC80211_LEDS
507 int tx_led_counter, rx_led_counter;
508 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
509 char tx_led_name[32], rx_led_name[32],
510 assoc_led_name[32], radio_led_name[32];
516 #ifdef CONFIG_MAC80211_DEBUGFS
517 struct work_struct sta_debugfs_add;
520 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
521 /* TX/RX handler statistics */
522 unsigned int tx_handlers_drop;
523 unsigned int tx_handlers_queued;
524 unsigned int tx_handlers_drop_unencrypted;
525 unsigned int tx_handlers_drop_fragment;
526 unsigned int tx_handlers_drop_wep;
527 unsigned int tx_handlers_drop_not_assoc;
528 unsigned int tx_handlers_drop_unauth_port;
529 unsigned int rx_handlers_drop;
530 unsigned int rx_handlers_queued;
531 unsigned int rx_handlers_drop_nullfunc;
532 unsigned int rx_handlers_drop_defrag;
533 unsigned int rx_handlers_drop_short;
534 unsigned int rx_handlers_drop_passive_scan;
535 unsigned int tx_expand_skb_head;
536 unsigned int tx_expand_skb_head_cloned;
537 unsigned int rx_expand_skb_head;
538 unsigned int rx_expand_skb_head2;
539 unsigned int rx_handlers_fragments;
540 unsigned int tx_status_drop;
541 unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
542 unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
543 #define I802_DEBUG_INC(c) (c)++
544 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
545 #define I802_DEBUG_INC(c) do { } while (0)
546 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
549 int total_ps_buffered; /* total number of all buffered unicast and
550 * multicast packets for power saving stations
552 int wifi_wme_noack_test;
553 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
555 #ifdef CONFIG_MAC80211_DEBUGFS
556 struct local_debugfsdentries {
557 struct dentry *frequency;
558 struct dentry *antenna_sel_tx;
559 struct dentry *antenna_sel_rx;
560 struct dentry *bridge_packets;
561 struct dentry *rts_threshold;
562 struct dentry *fragmentation_threshold;
563 struct dentry *short_retry_limit;
564 struct dentry *long_retry_limit;
565 struct dentry *total_ps_buffered;
566 struct dentry *wep_iv;
567 struct dentry *statistics;
568 struct local_debugfsdentries_statsdentries {
569 struct dentry *transmitted_fragment_count;
570 struct dentry *multicast_transmitted_frame_count;
571 struct dentry *failed_count;
572 struct dentry *retry_count;
573 struct dentry *multiple_retry_count;
574 struct dentry *frame_duplicate_count;
575 struct dentry *received_fragment_count;
576 struct dentry *multicast_received_frame_count;
577 struct dentry *transmitted_frame_count;
578 struct dentry *wep_undecryptable_count;
579 struct dentry *num_scans;
580 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
581 struct dentry *tx_handlers_drop;
582 struct dentry *tx_handlers_queued;
583 struct dentry *tx_handlers_drop_unencrypted;
584 struct dentry *tx_handlers_drop_fragment;
585 struct dentry *tx_handlers_drop_wep;
586 struct dentry *tx_handlers_drop_not_assoc;
587 struct dentry *tx_handlers_drop_unauth_port;
588 struct dentry *rx_handlers_drop;
589 struct dentry *rx_handlers_queued;
590 struct dentry *rx_handlers_drop_nullfunc;
591 struct dentry *rx_handlers_drop_defrag;
592 struct dentry *rx_handlers_drop_short;
593 struct dentry *rx_handlers_drop_passive_scan;
594 struct dentry *tx_expand_skb_head;
595 struct dentry *tx_expand_skb_head_cloned;
596 struct dentry *rx_expand_skb_head;
597 struct dentry *rx_expand_skb_head2;
598 struct dentry *rx_handlers_fragments;
599 struct dentry *tx_status_drop;
600 struct dentry *wme_tx_queue;
601 struct dentry *wme_rx_queue;
603 struct dentry *dot11ACKFailureCount;
604 struct dentry *dot11RTSFailureCount;
605 struct dentry *dot11FCSErrorCount;
606 struct dentry *dot11RTSSuccessCount;
608 struct dentry *stations;
614 /* this struct represents 802.11n's RA/TID combination */
615 struct ieee80211_ra_tid {
620 static inline struct ieee80211_local *hw_to_local(
621 struct ieee80211_hw *hw)
623 return container_of(hw, struct ieee80211_local, hw);
626 static inline struct ieee80211_hw *local_to_hw(
627 struct ieee80211_local *local)
632 enum ieee80211_link_state_t {
633 IEEE80211_LINK_STATE_XOFF = 0,
634 IEEE80211_LINK_STATE_PENDING,
637 struct sta_attribute {
638 struct attribute attr;
639 ssize_t (*show)(const struct sta_info *, char *buf);
640 ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
643 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
645 return compare_ether_addr(raddr, addr) == 0 ||
646 is_broadcast_ether_addr(raddr);
651 int ieee80211_hw_config(struct ieee80211_local *local);
652 int ieee80211_if_config(struct net_device *dev);
653 int ieee80211_if_config_beacon(struct net_device *dev);
654 void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx);
655 int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
656 void ieee80211_if_setup(struct net_device *dev);
657 int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht,
658 struct ieee80211_ht_info *req_ht_cap,
659 struct ieee80211_ht_bss_info *req_bss_cap);
661 /* ieee80211_ioctl.c */
662 extern const struct iw_handler_def ieee80211_iw_handler_def;
665 /* Least common multiple of the used rates (in 100 kbps). This is used to
666 * calculate rate_inv values for each rate so that only integers are needed. */
667 #define CHAN_UTIL_RATE_LCM 95040
668 /* 1 usec is 1/8 * (95040/10) = 1188 */
669 #define CHAN_UTIL_PER_USEC 1188
670 /* Amount of bits to shift the result right to scale the total utilization
671 * to values that will not wrap around 32-bit integers. */
672 #define CHAN_UTIL_SHIFT 9
673 /* Theoretical maximum of channel utilization counter in 10 ms (stat_time=1):
674 * (CHAN_UTIL_PER_USEC * 10000) >> CHAN_UTIL_SHIFT = 23203. So dividing the
675 * raw value with about 23 should give utilization in 10th of a percentage
676 * (1/1000). However, utilization is only estimated and not all intervals
677 * between frames etc. are calculated. 18 seems to give numbers that are closer
678 * to the real maximum. */
679 #define CHAN_UTIL_PER_10MS 18
680 #define CHAN_UTIL_HDR_LONG (202 * CHAN_UTIL_PER_USEC)
681 #define CHAN_UTIL_HDR_SHORT (40 * CHAN_UTIL_PER_USEC)
684 /* ieee80211_ioctl.c */
685 int ieee80211_set_compression(struct ieee80211_local *local,
686 struct net_device *dev, struct sta_info *sta);
687 int ieee80211_set_freq(struct ieee80211_local *local, int freq);
688 /* ieee80211_sta.c */
689 void ieee80211_sta_timer(unsigned long data);
690 void ieee80211_sta_work(struct work_struct *work);
691 void ieee80211_sta_scan_work(struct work_struct *work);
692 void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
693 struct ieee80211_rx_status *rx_status);
694 int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
695 int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
696 int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
697 int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
698 void ieee80211_sta_req_auth(struct net_device *dev,
699 struct ieee80211_if_sta *ifsta);
700 int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
701 ieee80211_rx_result ieee80211_sta_rx_scan(
702 struct net_device *dev, struct sk_buff *skb,
703 struct ieee80211_rx_status *rx_status);
704 void ieee80211_rx_bss_list_init(struct net_device *dev);
705 void ieee80211_rx_bss_list_deinit(struct net_device *dev);
706 int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
707 struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
708 struct sk_buff *skb, u8 *bssid,
710 int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
711 int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
712 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
714 void ieee80211_reset_erp_info(struct net_device *dev);
715 int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
716 struct ieee80211_ht_info *ht_info);
717 int ieee80211_ht_addt_info_ie_to_ht_bss_info(
718 struct ieee80211_ht_addt_info *ht_add_info_ie,
719 struct ieee80211_ht_bss_info *bss_info);
720 void ieee80211_send_addba_request(struct net_device *dev, const u8 *da,
721 u16 tid, u8 dialog_token, u16 start_seq_num,
722 u16 agg_size, u16 timeout);
723 void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid,
724 u16 initiator, u16 reason_code);
725 void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *da,
726 u16 tid, u16 initiator, u16 reason);
727 void sta_rx_agg_session_timer_expired(unsigned long data);
728 void sta_addba_resp_timer_expired(unsigned long data);
729 /* ieee80211_iface.c */
730 int ieee80211_if_add(struct net_device *dev, const char *name,
731 struct net_device **new_dev, int type);
732 void ieee80211_if_set_type(struct net_device *dev, int type);
733 void ieee80211_if_reinit(struct net_device *dev);
734 void __ieee80211_if_del(struct ieee80211_local *local,
735 struct ieee80211_sub_if_data *sdata);
736 int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
737 void ieee80211_if_free(struct net_device *dev);
738 void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
741 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
742 void ieee80211_tx_pending(unsigned long data);
743 int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
744 int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
745 int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
747 /* utility functions/constants */
748 extern void *mac80211_wiphy_privid; /* for wiphy privid */
749 extern const unsigned char rfc1042_header[6];
750 extern const unsigned char bridge_tunnel_header[6];
751 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
752 enum ieee80211_if_types type);
753 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
754 int rate, int erp, int short_preamble);
755 void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
756 struct ieee80211_hdr *hdr);
758 #endif /* IEEE80211_I_H */