2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005, Devicescape Software, Inc.
4 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
5 * Copyright 2007-2008 Johannes Berg <johannes@sipsolutions.net>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
15 #include <linux/kernel.h>
16 #include <linux/device.h>
17 #include <linux/if_ether.h>
18 #include <linux/interrupt.h>
19 #include <linux/list.h>
20 #include <linux/netdevice.h>
21 #include <linux/skbuff.h>
22 #include <linux/workqueue.h>
23 #include <linux/types.h>
24 #include <linux/spinlock.h>
25 #include <linux/etherdevice.h>
26 #include <net/wireless.h>
27 #include <net/iw_handler.h>
28 #include <net/mac80211.h>
32 /* ieee80211.o internal definitions, etc. These are not included into
33 * low-level drivers. */
35 struct ieee80211_local;
37 /* Maximum number of broadcast/multicast frames to buffer when some of the
38 * associated stations are using power saving. */
39 #define AP_MAX_BC_BUFFER 128
41 /* Maximum number of frames buffered to all STAs, including multicast frames.
42 * Note: increasing this limit increases the potential memory requirement. Each
43 * frame can be up to about 2 kB long. */
44 #define TOTAL_MAX_TX_BUFFER 512
46 /* Required encryption head and tailroom */
47 #define IEEE80211_ENCRYPT_HEADROOM 8
48 #define IEEE80211_ENCRYPT_TAILROOM 12
50 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
51 * reception of at least three fragmented frames. This limit can be increased
52 * by changing this define, at the cost of slower frame reassembly and
53 * increased memory use (about 2 kB of RAM per entry). */
54 #define IEEE80211_FRAGMENT_MAX 4
56 struct ieee80211_fragment_entry {
57 unsigned long first_frag_time;
59 unsigned int rx_queue;
60 unsigned int last_frag;
61 unsigned int extra_len;
62 struct sk_buff_head skb_list;
63 int ccmp; /* Whether fragments were encrypted with CCMP */
64 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
68 struct ieee80211_sta_bss {
69 struct list_head list;
70 struct ieee80211_sta_bss *hnext;
76 u8 ssid[IEEE80211_MAX_SSID_LEN];
78 u16 capability; /* host byte order */
79 enum ieee80211_band band;
81 int signal, noise, qual;
92 #ifdef CONFIG_MAC80211_MESH
97 #define IEEE80211_MAX_SUPP_RATES 32
98 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
99 size_t supp_rates_len;
104 unsigned long last_update;
106 /* during assocation, we save an ERP value from a probe response so
107 * that we can feed ERP info to the driver when handling the
108 * association completes. these fields probably won't be up-to-date
109 * otherwise, you probably don't want to use them. */
114 static inline u8 *bss_mesh_cfg(struct ieee80211_sta_bss *bss)
116 #ifdef CONFIG_MAC80211_MESH
117 return bss->mesh_cfg;
122 static inline u8 *bss_mesh_id(struct ieee80211_sta_bss *bss)
124 #ifdef CONFIG_MAC80211_MESH
130 static inline u8 bss_mesh_id_len(struct ieee80211_sta_bss *bss)
132 #ifdef CONFIG_MAC80211_MESH
133 return bss->mesh_id_len;
139 typedef unsigned __bitwise__ ieee80211_tx_result;
140 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
141 #define TX_DROP ((__force ieee80211_tx_result) 1u)
142 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
144 #define IEEE80211_TX_FRAGMENTED BIT(0)
145 #define IEEE80211_TX_UNICAST BIT(1)
146 #define IEEE80211_TX_PS_BUFFERED BIT(2)
147 #define IEEE80211_TX_PROBE_LAST_FRAG BIT(3)
149 struct ieee80211_tx_data {
151 struct net_device *dev;
152 struct ieee80211_local *local;
153 struct ieee80211_sub_if_data *sdata;
154 struct sta_info *sta;
155 struct ieee80211_key *key;
157 struct ieee80211_channel *channel;
159 /* use this rate (if set) for last fragment; rate can
160 * be set to lower rate for the first fragments, e.g.,
161 * when using CTS protection with IEEE 802.11g. */
162 s8 last_frag_rate_idx;
164 /* Extra fragments (in addition to the first fragment
166 struct sk_buff **extra_frag;
174 typedef unsigned __bitwise__ ieee80211_rx_result;
175 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
176 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
177 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
178 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
180 #define IEEE80211_RX_IN_SCAN BIT(0)
181 /* frame is destined to interface currently processed (incl. multicast frames) */
182 #define IEEE80211_RX_RA_MATCH BIT(1)
183 #define IEEE80211_RX_AMSDU BIT(2)
184 #define IEEE80211_RX_CMNTR_REPORTED BIT(3)
185 #define IEEE80211_RX_FRAGMENTED BIT(4)
187 struct ieee80211_rx_data {
189 struct net_device *dev;
190 struct ieee80211_local *local;
191 struct ieee80211_sub_if_data *sdata;
192 struct sta_info *sta;
193 struct ieee80211_key *key;
194 struct ieee80211_rx_status *status;
195 struct ieee80211_rate *rate;
199 int sent_ps_buffered;
205 struct ieee80211_tx_stored_packet {
207 struct sk_buff **extra_frag;
208 s8 last_frag_rate_idx;
210 bool last_frag_rate_ctrl_probe;
215 int head_len, tail_len;
219 struct ieee80211_if_ap {
220 struct beacon_data *beacon;
222 struct list_head vlans;
224 u8 ssid[IEEE80211_MAX_SSID_LEN];
227 /* yes, this looks ugly, but guarantees that we can later use
229 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
230 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
231 struct sk_buff_head ps_bc_buf;
232 atomic_t num_sta_ps; /* number of stations in PS mode */
234 int num_beacons; /* number of TXed beacon frames for this BSS */
237 struct ieee80211_if_wds {
238 struct sta_info *sta;
239 u8 remote_addr[ETH_ALEN];
242 struct ieee80211_if_vlan {
243 struct list_head list;
247 __u32 fwded_frames; /* Mesh forwarded frames */
248 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
249 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
250 atomic_t estab_plinks;
253 #define PREQ_Q_F_START 0x1
254 #define PREQ_Q_F_REFRESH 0x2
255 struct mesh_preq_queue {
256 struct list_head list;
263 /* Mesh plink management parameters */
264 u16 dot11MeshRetryTimeout;
265 u16 dot11MeshConfirmTimeout;
266 u16 dot11MeshHoldingTimeout;
267 u16 dot11MeshMaxPeerLinks;
268 u8 dot11MeshMaxRetries;
270 bool auto_open_plinks;
271 /* HWMP parameters */
272 u8 dot11MeshHWMPmaxPREQretries;
273 u32 path_refresh_time;
274 u16 min_discovery_timeout;
275 u32 dot11MeshHWMPactivePathTimeout;
276 u16 dot11MeshHWMPpreqMinInterval;
277 u16 dot11MeshHWMPnetDiameterTraversalTime;
281 /* flags used in struct ieee80211_if_sta.flags */
282 #define IEEE80211_STA_SSID_SET BIT(0)
283 #define IEEE80211_STA_BSSID_SET BIT(1)
284 #define IEEE80211_STA_PREV_BSSID_SET BIT(2)
285 #define IEEE80211_STA_AUTHENTICATED BIT(3)
286 #define IEEE80211_STA_ASSOCIATED BIT(4)
287 #define IEEE80211_STA_PROBEREQ_POLL BIT(5)
288 #define IEEE80211_STA_CREATE_IBSS BIT(6)
289 #define IEEE80211_STA_MIXED_CELL BIT(7)
290 #define IEEE80211_STA_WMM_ENABLED BIT(8)
291 #define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
292 #define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
293 #define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
294 #define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
295 /* flags for MLME request*/
296 #define IEEE80211_STA_REQ_SCAN 0
297 #define IEEE80211_STA_REQ_AUTH 1
298 #define IEEE80211_STA_REQ_RUN 2
300 /* flags used for setting mlme state */
301 enum ieee80211_sta_mlme_state {
302 IEEE80211_STA_MLME_DISABLED,
303 IEEE80211_STA_MLME_AUTHENTICATE,
304 IEEE80211_STA_MLME_ASSOCIATE,
305 IEEE80211_STA_MLME_ASSOCIATED,
306 IEEE80211_STA_MLME_IBSS_SEARCH,
307 IEEE80211_STA_MLME_IBSS_JOINED,
308 IEEE80211_STA_MLME_MESH_UP
311 /* bitfield of allowed auth algs */
312 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
313 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
314 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
316 struct ieee80211_if_sta {
317 struct timer_list timer;
318 struct work_struct work;
319 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
320 u8 ssid[IEEE80211_MAX_SSID_LEN];
321 enum ieee80211_sta_mlme_state state;
323 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
324 size_t scan_ssid_len;
325 #ifdef CONFIG_MAC80211_MESH
326 struct timer_list mesh_path_timer;
327 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
329 /* Active Path Selection Protocol Identifier */
331 /* Active Path Selection Metric Identifier */
333 /* Congestion Control Mode Identifier */
335 /* Local mesh Destination Sequence Number */
337 /* Last used PREQ ID */
340 /* Timestamp of last DSN update */
341 unsigned long last_dsn_update;
342 /* Timestamp of last DSN sent */
343 unsigned long last_preq;
344 struct mesh_rmc *rmc;
345 spinlock_t mesh_preq_queue_lock;
346 struct mesh_preq_queue preq_queue;
348 struct mesh_stats mshstats;
349 struct mesh_config mshcfg;
351 bool accepting_plinks;
355 u8 *extra_ie; /* to be added to the end of AssocReq */
358 /* The last AssocReq/Resp IEs */
359 u8 *assocreq_ies, *assocresp_ies;
360 size_t assocreq_ies_len, assocresp_ies_len;
362 struct sk_buff_head skb_queue;
364 int assoc_scan_tries; /* number of scans done pre-association */
365 int auth_tries; /* retries for auth req */
366 int assoc_tries; /* retries for assoc req */
368 unsigned long request;
370 unsigned long last_probe;
374 unsigned int auth_algs; /* bitfield of allowed auth algs */
375 int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
376 int auth_transaction;
378 unsigned long ibss_join_req;
379 struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
380 u32 supp_rates_bits[IEEE80211_NUM_BANDS];
382 int wmm_last_param_set;
383 int num_beacons; /* number of TXed beacon frames by this STA */
386 static inline void ieee80211_if_sta_set_mesh_id(struct ieee80211_if_sta *ifsta,
387 u8 mesh_id_len, u8 *mesh_id)
389 #ifdef CONFIG_MAC80211_MESH
390 ifsta->mesh_id_len = mesh_id_len;
391 memcpy(ifsta->mesh_id, mesh_id, mesh_id_len);
395 #ifdef CONFIG_MAC80211_MESH
396 #define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
397 do { (sta)->mshstats.name++; } while (0)
399 #define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
403 /* flags used in struct ieee80211_sub_if_data.flags */
404 #define IEEE80211_SDATA_ALLMULTI BIT(0)
405 #define IEEE80211_SDATA_PROMISC BIT(1)
406 #define IEEE80211_SDATA_USERSPACE_MLME BIT(2)
407 #define IEEE80211_SDATA_OPERATING_GMODE BIT(3)
408 struct ieee80211_sub_if_data {
409 struct list_head list;
411 struct wireless_dev wdev;
414 struct list_head key_list;
416 struct net_device *dev;
417 struct ieee80211_local *local;
421 int drop_unencrypted;
424 * basic rates of this AP or the AP we're associated to
428 /* Fragment table for host-based reassembly */
429 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
430 unsigned int fragment_next;
432 #define NUM_DEFAULT_KEYS 4
433 struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
434 struct ieee80211_key *default_key;
436 /* BSS configuration for this interface. */
437 struct ieee80211_bss_conf bss_conf;
440 * AP this belongs to: self in AP mode and
441 * corresponding AP in VLAN mode, NULL for
442 * all others (might be needed later in IBSS)
444 struct ieee80211_if_ap *bss;
446 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
447 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
450 struct ieee80211_if_ap ap;
451 struct ieee80211_if_wds wds;
452 struct ieee80211_if_vlan vlan;
453 struct ieee80211_if_sta sta;
457 #ifdef CONFIG_MAC80211_DEBUGFS
458 struct dentry *debugfsdir;
461 struct dentry *drop_unencrypted;
462 struct dentry *state;
463 struct dentry *bssid;
464 struct dentry *prev_bssid;
465 struct dentry *ssid_len;
467 struct dentry *ap_capab;
468 struct dentry *capab;
469 struct dentry *extra_ie_len;
470 struct dentry *auth_tries;
471 struct dentry *assoc_tries;
472 struct dentry *auth_algs;
473 struct dentry *auth_alg;
474 struct dentry *auth_transaction;
475 struct dentry *flags;
476 struct dentry *num_beacons_sta;
479 struct dentry *drop_unencrypted;
480 struct dentry *num_sta_ps;
481 struct dentry *dtim_count;
482 struct dentry *num_beacons;
483 struct dentry *force_unicast_rateidx;
484 struct dentry *max_ratectrl_rateidx;
485 struct dentry *num_buffered_multicast;
488 struct dentry *drop_unencrypted;
492 struct dentry *drop_unencrypted;
497 struct dentry *default_key;
500 #ifdef CONFIG_MAC80211_MESH
501 struct dentry *mesh_stats_dir;
503 struct dentry *fwded_frames;
504 struct dentry *dropped_frames_ttl;
505 struct dentry *dropped_frames_no_route;
506 struct dentry *estab_plinks;
507 struct timer_list mesh_path_timer;
510 struct dentry *mesh_config_dir;
512 struct dentry *dot11MeshRetryTimeout;
513 struct dentry *dot11MeshConfirmTimeout;
514 struct dentry *dot11MeshHoldingTimeout;
515 struct dentry *dot11MeshMaxRetries;
516 struct dentry *dot11MeshTTL;
517 struct dentry *auto_open_plinks;
518 struct dentry *dot11MeshMaxPeerLinks;
519 struct dentry *dot11MeshHWMPactivePathTimeout;
520 struct dentry *dot11MeshHWMPpreqMinInterval;
521 struct dentry *dot11MeshHWMPnetDiameterTraversalTime;
522 struct dentry *dot11MeshHWMPmaxPREQretries;
523 struct dentry *path_refresh_time;
524 struct dentry *min_discovery_timeout;
529 /* must be last, dynamically sized area in this! */
530 struct ieee80211_vif vif;
534 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
536 return container_of(p, struct ieee80211_sub_if_data, vif);
540 IEEE80211_RX_MSG = 1,
541 IEEE80211_TX_STATUS_MSG = 2,
542 IEEE80211_DELBA_MSG = 3,
543 IEEE80211_ADDBA_MSG = 4,
546 /* maximum number of hardware queues we support. */
547 #define QD_MAX_QUEUES (IEEE80211_MAX_AMPDU_QUEUES + IEEE80211_MAX_QUEUES)
549 struct ieee80211_local {
550 /* embed the driver visible part.
551 * don't cast (use the static inlines below), but we keep
552 * it first anyway so they become a no-op */
553 struct ieee80211_hw hw;
555 const struct ieee80211_ops *ops;
557 unsigned long queue_pool[BITS_TO_LONGS(QD_MAX_QUEUES)];
559 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
561 int monitors, cooked_mntrs;
562 /* number of interfaces with corresponding FIF_ flags */
563 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss;
564 unsigned int filter_flags; /* FIF_* */
565 struct iw_statistics wstats;
567 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
568 int tx_headroom; /* required headroom for hardware/radiotap */
570 /* Tasklet and skb queue to process calls from IRQ mode. All frames
571 * added to skb_queue will be processed, but frames in
572 * skb_queue_unreliable may be dropped if the total length of these
573 * queues increases over the limit. */
574 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
575 struct tasklet_struct tasklet;
576 struct sk_buff_head skb_queue;
577 struct sk_buff_head skb_queue_unreliable;
581 * The lock only protects the list, hash, timer and counter
582 * against manipulation, reads are done in RCU. Additionally,
583 * the lock protects each BSS's TIM bitmap.
586 unsigned long num_sta;
587 struct list_head sta_list;
588 struct list_head sta_flush_list;
589 struct work_struct sta_flush_work;
590 struct sta_info *sta_hash[STA_HASH_SIZE];
591 struct timer_list sta_cleanup;
593 unsigned long queues_pending[BITS_TO_LONGS(IEEE80211_MAX_QUEUES)];
594 unsigned long queues_pending_run[BITS_TO_LONGS(IEEE80211_MAX_QUEUES)];
595 struct ieee80211_tx_stored_packet pending_packet[IEEE80211_MAX_QUEUES];
596 struct tasklet_struct tx_pending_tasklet;
598 /* number of interfaces with corresponding IFF_ flags */
599 atomic_t iff_allmultis, iff_promiscs;
601 struct rate_control_ref *rate_ctrl;
604 int fragmentation_threshold;
605 int short_retry_limit; /* dot11ShortRetryLimit */
606 int long_retry_limit; /* dot11LongRetryLimit */
608 struct crypto_blkcipher *wep_tx_tfm;
609 struct crypto_blkcipher *wep_rx_tfm;
612 int bridge_packets; /* bridge packets between associated stations and
613 * deliver multicast frames both back to wireless
614 * media and to the local net stack */
616 struct list_head interfaces;
619 * Key lock, protects sdata's key_list and sta_info's
620 * key pointers (write access, they're RCU.)
625 bool sta_sw_scanning;
626 bool sta_hw_scanning;
627 int scan_channel_idx;
628 enum ieee80211_band scan_band;
630 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
631 unsigned long last_scan_completed;
632 struct delayed_work scan_work;
633 struct net_device *scan_dev;
634 struct ieee80211_channel *oper_channel, *scan_channel;
635 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
636 size_t scan_ssid_len;
637 struct list_head sta_bss_list;
638 struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
639 spinlock_t sta_bss_lock;
642 /* dot11CountersTable */
643 u32 dot11TransmittedFragmentCount;
644 u32 dot11MulticastTransmittedFrameCount;
645 u32 dot11FailedCount;
647 u32 dot11MultipleRetryCount;
648 u32 dot11FrameDuplicateCount;
649 u32 dot11ReceivedFragmentCount;
650 u32 dot11MulticastReceivedFrameCount;
651 u32 dot11TransmittedFrameCount;
652 u32 dot11WEPUndecryptableCount;
654 #ifdef CONFIG_MAC80211_LEDS
655 int tx_led_counter, rx_led_counter;
656 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
657 char tx_led_name[32], rx_led_name[32],
658 assoc_led_name[32], radio_led_name[32];
661 #ifdef CONFIG_MAC80211_DEBUGFS
662 struct work_struct sta_debugfs_add;
665 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
666 /* TX/RX handler statistics */
667 unsigned int tx_handlers_drop;
668 unsigned int tx_handlers_queued;
669 unsigned int tx_handlers_drop_unencrypted;
670 unsigned int tx_handlers_drop_fragment;
671 unsigned int tx_handlers_drop_wep;
672 unsigned int tx_handlers_drop_not_assoc;
673 unsigned int tx_handlers_drop_unauth_port;
674 unsigned int rx_handlers_drop;
675 unsigned int rx_handlers_queued;
676 unsigned int rx_handlers_drop_nullfunc;
677 unsigned int rx_handlers_drop_defrag;
678 unsigned int rx_handlers_drop_short;
679 unsigned int rx_handlers_drop_passive_scan;
680 unsigned int tx_expand_skb_head;
681 unsigned int tx_expand_skb_head_cloned;
682 unsigned int rx_expand_skb_head;
683 unsigned int rx_expand_skb_head2;
684 unsigned int rx_handlers_fragments;
685 unsigned int tx_status_drop;
686 #define I802_DEBUG_INC(c) (c)++
687 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
688 #define I802_DEBUG_INC(c) do { } while (0)
689 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
692 int total_ps_buffered; /* total number of all buffered unicast and
693 * multicast packets for power saving stations
695 int wifi_wme_noack_test;
696 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
698 #ifdef CONFIG_MAC80211_DEBUGFS
699 struct local_debugfsdentries {
700 struct dentry *frequency;
701 struct dentry *antenna_sel_tx;
702 struct dentry *antenna_sel_rx;
703 struct dentry *bridge_packets;
704 struct dentry *rts_threshold;
705 struct dentry *fragmentation_threshold;
706 struct dentry *short_retry_limit;
707 struct dentry *long_retry_limit;
708 struct dentry *total_ps_buffered;
709 struct dentry *wep_iv;
710 struct dentry *statistics;
711 struct local_debugfsdentries_statsdentries {
712 struct dentry *transmitted_fragment_count;
713 struct dentry *multicast_transmitted_frame_count;
714 struct dentry *failed_count;
715 struct dentry *retry_count;
716 struct dentry *multiple_retry_count;
717 struct dentry *frame_duplicate_count;
718 struct dentry *received_fragment_count;
719 struct dentry *multicast_received_frame_count;
720 struct dentry *transmitted_frame_count;
721 struct dentry *wep_undecryptable_count;
722 struct dentry *num_scans;
723 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
724 struct dentry *tx_handlers_drop;
725 struct dentry *tx_handlers_queued;
726 struct dentry *tx_handlers_drop_unencrypted;
727 struct dentry *tx_handlers_drop_fragment;
728 struct dentry *tx_handlers_drop_wep;
729 struct dentry *tx_handlers_drop_not_assoc;
730 struct dentry *tx_handlers_drop_unauth_port;
731 struct dentry *rx_handlers_drop;
732 struct dentry *rx_handlers_queued;
733 struct dentry *rx_handlers_drop_nullfunc;
734 struct dentry *rx_handlers_drop_defrag;
735 struct dentry *rx_handlers_drop_short;
736 struct dentry *rx_handlers_drop_passive_scan;
737 struct dentry *tx_expand_skb_head;
738 struct dentry *tx_expand_skb_head_cloned;
739 struct dentry *rx_expand_skb_head;
740 struct dentry *rx_expand_skb_head2;
741 struct dentry *rx_handlers_fragments;
742 struct dentry *tx_status_drop;
744 struct dentry *dot11ACKFailureCount;
745 struct dentry *dot11RTSFailureCount;
746 struct dentry *dot11FCSErrorCount;
747 struct dentry *dot11RTSSuccessCount;
749 struct dentry *stations;
755 static inline struct ieee80211_sub_if_data *
756 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
758 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
760 BUG_ON(!local || local->mdev == dev);
762 return netdev_priv(dev);
765 /* this struct represents 802.11n's RA/TID combination */
766 struct ieee80211_ra_tid {
771 /* Parsed Information Elements */
772 struct ieee802_11_elems {
773 /* pointers to IEs */
799 u8 *quiet_elem; /* first quite element */
801 /* length of them, respectively */
813 u8 ext_supp_rates_len;
824 u8 ch_switch_elem_len;
826 u8 pwr_constr_elem_len;
828 u8 num_of_quiet_elem; /* can be more the one */
831 static inline struct ieee80211_local *hw_to_local(
832 struct ieee80211_hw *hw)
834 return container_of(hw, struct ieee80211_local, hw);
837 static inline struct ieee80211_hw *local_to_hw(
838 struct ieee80211_local *local)
843 struct sta_attribute {
844 struct attribute attr;
845 ssize_t (*show)(const struct sta_info *, char *buf);
846 ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
849 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
851 return compare_ether_addr(raddr, addr) == 0 ||
852 is_broadcast_ether_addr(raddr);
857 int ieee80211_hw_config(struct ieee80211_local *local);
858 int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed);
859 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
860 u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht,
861 struct ieee80211_ht_info *req_ht_cap,
862 struct ieee80211_ht_bss_info *req_bss_cap);
864 /* ieee80211_ioctl.c */
865 extern const struct iw_handler_def ieee80211_iw_handler_def;
866 int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freq);
868 /* ieee80211_sta.c */
869 void ieee80211_sta_timer(unsigned long data);
870 void ieee80211_sta_work(struct work_struct *work);
871 void ieee80211_sta_scan_work(struct work_struct *work);
872 void ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
873 struct ieee80211_rx_status *rx_status);
874 int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len);
875 int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len);
876 int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid);
877 int ieee80211_sta_req_scan(struct ieee80211_sub_if_data *sdata, u8 *ssid, size_t ssid_len);
878 void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata,
879 struct ieee80211_if_sta *ifsta);
880 int ieee80211_sta_scan_results(struct ieee80211_local *local,
881 struct iw_request_info *info,
882 char *buf, size_t len);
883 ieee80211_rx_result ieee80211_sta_rx_scan(
884 struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
885 struct ieee80211_rx_status *rx_status);
886 void ieee80211_rx_bss_list_init(struct ieee80211_local *local);
887 void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local);
888 int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata, char *ie, size_t len);
889 struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
890 struct sk_buff *skb, u8 *bssid,
891 u8 *addr, u64 supp_rates);
892 int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason);
893 int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason);
894 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
896 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
897 int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
898 struct ieee80211_ht_info *ht_info);
899 int ieee80211_ht_addt_info_ie_to_ht_bss_info(
900 struct ieee80211_ht_addt_info *ht_add_info_ie,
901 struct ieee80211_ht_bss_info *bss_info);
902 void ieee80211_send_addba_request(struct ieee80211_sub_if_data *sdata, const u8 *da,
903 u16 tid, u8 dialog_token, u16 start_seq_num,
904 u16 agg_size, u16 timeout);
905 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, const u8 *da, u16 tid,
906 u16 initiator, u16 reason_code);
907 void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
909 void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
910 u16 tid, u16 initiator, u16 reason);
911 void sta_addba_resp_timer_expired(unsigned long data);
912 void ieee80211_sta_tear_down_BA_sessions(struct ieee80211_sub_if_data *sdata, u8 *addr);
913 u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
914 struct ieee802_11_elems *elems,
915 enum ieee80211_band band);
916 void ieee80211_sta_tx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
918 void ieee802_11_parse_elems(u8 *start, size_t len,
919 struct ieee802_11_elems *elems);
921 #ifdef CONFIG_MAC80211_MESH
922 void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata);
924 static inline void ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata)
928 /* interface handling */
929 void ieee80211_if_setup(struct net_device *dev);
930 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
931 struct net_device **new_dev, enum ieee80211_if_types type,
932 struct vif_params *params);
933 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
934 enum ieee80211_if_types type);
935 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
936 void ieee80211_remove_interfaces(struct ieee80211_local *local);
939 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
940 void ieee80211_tx_pending(unsigned long data);
941 int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
942 int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
943 int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
945 /* utility functions/constants */
946 extern void *mac80211_wiphy_privid; /* for wiphy privid */
947 extern const unsigned char rfc1042_header[6];
948 extern const unsigned char bridge_tunnel_header[6];
949 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
950 enum ieee80211_if_types type);
951 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
952 int rate, int erp, int short_preamble);
953 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
954 struct ieee80211_hdr *hdr);
956 #ifdef CONFIG_MAC80211_NOINLINE
957 #define debug_noinline noinline
959 #define debug_noinline
962 #endif /* IEEE80211_I_H */