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 struct ieee80211_local;
34 /* Maximum number of broadcast/multicast frames to buffer when some of the
35 * associated stations are using power saving. */
36 #define AP_MAX_BC_BUFFER 128
38 /* Maximum number of frames buffered to all STAs, including multicast frames.
39 * Note: increasing this limit increases the potential memory requirement. Each
40 * frame can be up to about 2 kB long. */
41 #define TOTAL_MAX_TX_BUFFER 512
43 /* Required encryption head and tailroom */
44 #define IEEE80211_ENCRYPT_HEADROOM 8
45 #define IEEE80211_ENCRYPT_TAILROOM 12
47 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
48 * reception of at least three fragmented frames. This limit can be increased
49 * by changing this define, at the cost of slower frame reassembly and
50 * increased memory use (about 2 kB of RAM per entry). */
51 #define IEEE80211_FRAGMENT_MAX 4
54 * Time after which we ignore scan results and no longer report/use
57 #define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
59 struct ieee80211_fragment_entry {
60 unsigned long first_frag_time;
62 unsigned int rx_queue;
63 unsigned int last_frag;
64 unsigned int extra_len;
65 struct sk_buff_head skb_list;
66 int ccmp; /* Whether fragments were encrypted with CCMP */
67 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
71 struct ieee80211_bss {
72 struct list_head list;
73 struct ieee80211_bss *hnext;
79 u8 ssid[IEEE80211_MAX_SSID_LEN];
81 u16 capability; /* host byte order */
82 enum ieee80211_band band;
84 int signal, noise, qual;
85 u8 *ies; /* all information elements from the last Beacon or Probe
86 * Response frames; note Beacon frame is not allowed to
87 * override values from Probe Response */
90 #ifdef CONFIG_MAC80211_MESH
95 #define IEEE80211_MAX_SUPP_RATES 32
96 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
97 size_t supp_rates_len;
101 unsigned long last_probe_resp;
102 unsigned long last_update;
104 /* during assocation, we save an ERP value from a probe response so
105 * that we can feed ERP info to the driver when handling the
106 * association completes. these fields probably won't be up-to-date
107 * otherwise, you probably don't want to use them. */
112 static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
114 #ifdef CONFIG_MAC80211_MESH
115 return bss->mesh_cfg;
120 static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
122 #ifdef CONFIG_MAC80211_MESH
128 static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
130 #ifdef CONFIG_MAC80211_MESH
131 return bss->mesh_id_len;
137 typedef unsigned __bitwise__ ieee80211_tx_result;
138 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
139 #define TX_DROP ((__force ieee80211_tx_result) 1u)
140 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
142 #define IEEE80211_TX_FRAGMENTED BIT(0)
143 #define IEEE80211_TX_UNICAST BIT(1)
144 #define IEEE80211_TX_PS_BUFFERED BIT(2)
145 #define IEEE80211_TX_PROBE_LAST_FRAG BIT(3)
147 struct ieee80211_tx_data {
149 struct net_device *dev;
150 struct ieee80211_local *local;
151 struct ieee80211_sub_if_data *sdata;
152 struct sta_info *sta;
153 struct ieee80211_key *key;
155 struct ieee80211_channel *channel;
157 /* use this rate (if set) for last fragment; rate can
158 * be set to lower rate for the first fragments, e.g.,
159 * when using CTS protection with IEEE 802.11g. */
160 s8 last_frag_rate_idx;
162 /* Extra fragments (in addition to the first fragment
164 struct sk_buff **extra_frag;
172 typedef unsigned __bitwise__ ieee80211_rx_result;
173 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
174 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
175 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
176 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
178 #define IEEE80211_RX_IN_SCAN BIT(0)
179 /* frame is destined to interface currently processed (incl. multicast frames) */
180 #define IEEE80211_RX_RA_MATCH BIT(1)
181 #define IEEE80211_RX_AMSDU BIT(2)
182 #define IEEE80211_RX_CMNTR_REPORTED BIT(3)
183 #define IEEE80211_RX_FRAGMENTED BIT(4)
185 struct ieee80211_rx_data {
187 struct net_device *dev;
188 struct ieee80211_local *local;
189 struct ieee80211_sub_if_data *sdata;
190 struct sta_info *sta;
191 struct ieee80211_key *key;
192 struct ieee80211_rx_status *status;
193 struct ieee80211_rate *rate;
197 int sent_ps_buffered;
203 struct ieee80211_tx_stored_packet {
205 struct sk_buff **extra_frag;
206 s8 last_frag_rate_idx;
208 bool last_frag_rate_ctrl_probe;
213 int head_len, tail_len;
217 struct ieee80211_if_ap {
218 struct beacon_data *beacon;
220 struct list_head vlans;
222 u8 ssid[IEEE80211_MAX_SSID_LEN];
225 /* yes, this looks ugly, but guarantees that we can later use
227 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
228 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
229 struct sk_buff_head ps_bc_buf;
230 atomic_t num_sta_ps; /* number of stations in PS mode */
234 struct ieee80211_if_wds {
235 struct sta_info *sta;
236 u8 remote_addr[ETH_ALEN];
239 struct ieee80211_if_vlan {
240 struct list_head list;
244 __u32 fwded_frames; /* Mesh forwarded frames */
245 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
246 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
247 atomic_t estab_plinks;
250 #define PREQ_Q_F_START 0x1
251 #define PREQ_Q_F_REFRESH 0x2
252 struct mesh_preq_queue {
253 struct list_head list;
260 /* Mesh plink management parameters */
261 u16 dot11MeshRetryTimeout;
262 u16 dot11MeshConfirmTimeout;
263 u16 dot11MeshHoldingTimeout;
264 u16 dot11MeshMaxPeerLinks;
265 u8 dot11MeshMaxRetries;
267 bool auto_open_plinks;
268 /* HWMP parameters */
269 u8 dot11MeshHWMPmaxPREQretries;
270 u32 path_refresh_time;
271 u16 min_discovery_timeout;
272 u32 dot11MeshHWMPactivePathTimeout;
273 u16 dot11MeshHWMPpreqMinInterval;
274 u16 dot11MeshHWMPnetDiameterTraversalTime;
278 /* flags used in struct ieee80211_if_sta.flags */
279 #define IEEE80211_STA_SSID_SET BIT(0)
280 #define IEEE80211_STA_BSSID_SET BIT(1)
281 #define IEEE80211_STA_PREV_BSSID_SET BIT(2)
282 #define IEEE80211_STA_AUTHENTICATED BIT(3)
283 #define IEEE80211_STA_ASSOCIATED BIT(4)
284 #define IEEE80211_STA_PROBEREQ_POLL BIT(5)
285 #define IEEE80211_STA_CREATE_IBSS BIT(6)
286 #define IEEE80211_STA_MIXED_CELL BIT(7)
287 #define IEEE80211_STA_WMM_ENABLED BIT(8)
288 #define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
289 #define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
290 #define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
291 #define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
292 /* flags for MLME request */
293 #define IEEE80211_STA_REQ_SCAN 0
294 #define IEEE80211_STA_REQ_DIRECT_PROBE 1
295 #define IEEE80211_STA_REQ_AUTH 2
296 #define IEEE80211_STA_REQ_RUN 3
298 /* STA/IBSS MLME states */
299 enum ieee80211_sta_mlme_state {
300 IEEE80211_STA_MLME_DISABLED,
301 IEEE80211_STA_MLME_DIRECT_PROBE,
302 IEEE80211_STA_MLME_AUTHENTICATE,
303 IEEE80211_STA_MLME_ASSOCIATE,
304 IEEE80211_STA_MLME_ASSOCIATED,
305 IEEE80211_STA_MLME_IBSS_SEARCH,
306 IEEE80211_STA_MLME_IBSS_JOINED,
309 /* bitfield of allowed auth algs */
310 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
311 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
312 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
314 struct ieee80211_if_sta {
315 struct timer_list timer;
316 struct work_struct work;
317 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
318 u8 ssid[IEEE80211_MAX_SSID_LEN];
319 enum ieee80211_sta_mlme_state state;
321 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
322 size_t scan_ssid_len;
325 u8 *extra_ie; /* to be added to the end of AssocReq */
328 /* The last AssocReq/Resp IEs */
329 u8 *assocreq_ies, *assocresp_ies;
330 size_t assocreq_ies_len, assocresp_ies_len;
332 struct sk_buff_head skb_queue;
334 int assoc_scan_tries; /* number of scans done pre-association */
335 int direct_probe_tries; /* retries for direct probes */
336 int auth_tries; /* retries for auth req */
337 int assoc_tries; /* retries for assoc req */
339 unsigned long request;
341 unsigned long last_probe;
345 unsigned int auth_algs; /* bitfield of allowed auth algs */
346 int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
347 int auth_transaction;
349 unsigned long ibss_join_req;
350 struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
351 u32 supp_rates_bits[IEEE80211_NUM_BANDS];
353 int wmm_last_param_set;
356 struct ieee80211_if_mesh {
357 struct work_struct work;
358 struct timer_list housekeeping_timer;
359 struct timer_list mesh_path_timer;
360 struct sk_buff_head skb_queue;
364 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
366 /* Active Path Selection Protocol Identifier */
368 /* Active Path Selection Metric Identifier */
370 /* Congestion Control Mode Identifier */
372 /* Local mesh Destination Sequence Number */
374 /* Last used PREQ ID */
377 /* Timestamp of last DSN update */
378 unsigned long last_dsn_update;
379 /* Timestamp of last DSN sent */
380 unsigned long last_preq;
381 struct mesh_rmc *rmc;
382 spinlock_t mesh_preq_queue_lock;
383 struct mesh_preq_queue preq_queue;
385 struct mesh_stats mshstats;
386 struct mesh_config mshcfg;
388 bool accepting_plinks;
391 #ifdef CONFIG_MAC80211_MESH
392 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
393 do { (msh)->mshstats.name++; } while (0)
395 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
400 * enum ieee80211_sub_if_data_flags - virtual interface flags
402 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
403 * @IEEE80211_SDATA_PROMISC: interface is promisc
404 * @IEEE80211_SDATA_USERSPACE_MLME: userspace MLME is active
405 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
406 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
407 * associated stations and deliver multicast frames both
408 * back to wireless media and to the local net stack.
410 enum ieee80211_sub_if_data_flags {
411 IEEE80211_SDATA_ALLMULTI = BIT(0),
412 IEEE80211_SDATA_PROMISC = BIT(1),
413 IEEE80211_SDATA_USERSPACE_MLME = BIT(2),
414 IEEE80211_SDATA_OPERATING_GMODE = BIT(3),
415 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(4),
418 struct ieee80211_sub_if_data {
419 struct list_head list;
421 struct wireless_dev wdev;
424 struct list_head key_list;
426 struct net_device *dev;
427 struct ieee80211_local *local;
431 int drop_unencrypted;
433 /* Fragment table for host-based reassembly */
434 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
435 unsigned int fragment_next;
437 #define NUM_DEFAULT_KEYS 4
438 struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
439 struct ieee80211_key *default_key;
443 /* BSS configuration for this interface. */
444 struct ieee80211_bss_conf bss_conf;
447 * AP this belongs to: self in AP mode and
448 * corresponding AP in VLAN mode, NULL for
449 * all others (might be needed later in IBSS)
451 struct ieee80211_if_ap *bss;
453 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
454 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
457 struct ieee80211_if_ap ap;
458 struct ieee80211_if_wds wds;
459 struct ieee80211_if_vlan vlan;
460 struct ieee80211_if_sta sta;
461 #ifdef CONFIG_MAC80211_MESH
462 struct ieee80211_if_mesh mesh;
467 #ifdef CONFIG_MAC80211_DEBUGFS
468 struct dentry *debugfsdir;
471 struct dentry *drop_unencrypted;
472 struct dentry *state;
473 struct dentry *bssid;
474 struct dentry *prev_bssid;
475 struct dentry *ssid_len;
477 struct dentry *ap_capab;
478 struct dentry *capab;
479 struct dentry *extra_ie_len;
480 struct dentry *auth_tries;
481 struct dentry *assoc_tries;
482 struct dentry *auth_algs;
483 struct dentry *auth_alg;
484 struct dentry *auth_transaction;
485 struct dentry *flags;
486 struct dentry *force_unicast_rateidx;
487 struct dentry *max_ratectrl_rateidx;
490 struct dentry *drop_unencrypted;
491 struct dentry *num_sta_ps;
492 struct dentry *dtim_count;
493 struct dentry *force_unicast_rateidx;
494 struct dentry *max_ratectrl_rateidx;
495 struct dentry *num_buffered_multicast;
498 struct dentry *drop_unencrypted;
500 struct dentry *force_unicast_rateidx;
501 struct dentry *max_ratectrl_rateidx;
504 struct dentry *drop_unencrypted;
505 struct dentry *force_unicast_rateidx;
506 struct dentry *max_ratectrl_rateidx;
513 struct dentry *default_key;
516 #ifdef CONFIG_MAC80211_MESH
517 struct dentry *mesh_stats_dir;
519 struct dentry *fwded_frames;
520 struct dentry *dropped_frames_ttl;
521 struct dentry *dropped_frames_no_route;
522 struct dentry *estab_plinks;
523 struct timer_list mesh_path_timer;
526 struct dentry *mesh_config_dir;
528 struct dentry *dot11MeshRetryTimeout;
529 struct dentry *dot11MeshConfirmTimeout;
530 struct dentry *dot11MeshHoldingTimeout;
531 struct dentry *dot11MeshMaxRetries;
532 struct dentry *dot11MeshTTL;
533 struct dentry *auto_open_plinks;
534 struct dentry *dot11MeshMaxPeerLinks;
535 struct dentry *dot11MeshHWMPactivePathTimeout;
536 struct dentry *dot11MeshHWMPpreqMinInterval;
537 struct dentry *dot11MeshHWMPnetDiameterTraversalTime;
538 struct dentry *dot11MeshHWMPmaxPREQretries;
539 struct dentry *path_refresh_time;
540 struct dentry *min_discovery_timeout;
545 /* must be last, dynamically sized area in this! */
546 struct ieee80211_vif vif;
550 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
552 return container_of(p, struct ieee80211_sub_if_data, vif);
556 ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data *sdata,
557 u8 mesh_id_len, u8 *mesh_id)
559 #ifdef CONFIG_MAC80211_MESH
560 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
561 ifmsh->mesh_id_len = mesh_id_len;
562 memcpy(ifmsh->mesh_id, mesh_id, mesh_id_len);
569 IEEE80211_RX_MSG = 1,
570 IEEE80211_TX_STATUS_MSG = 2,
571 IEEE80211_DELBA_MSG = 3,
572 IEEE80211_ADDBA_MSG = 4,
575 /* maximum number of hardware queues we support. */
576 #define QD_MAX_QUEUES (IEEE80211_MAX_AMPDU_QUEUES + IEEE80211_MAX_QUEUES)
578 struct ieee80211_master_priv {
579 struct ieee80211_local *local;
582 struct ieee80211_local {
583 /* embed the driver visible part.
584 * don't cast (use the static inlines below), but we keep
585 * it first anyway so they become a no-op */
586 struct ieee80211_hw hw;
588 const struct ieee80211_ops *ops;
590 unsigned long queue_pool[BITS_TO_LONGS(QD_MAX_QUEUES)];
592 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
594 int monitors, cooked_mntrs;
595 /* number of interfaces with corresponding FIF_ flags */
596 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss;
597 unsigned int filter_flags; /* FIF_* */
598 struct iw_statistics wstats;
600 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
601 int tx_headroom; /* required headroom for hardware/radiotap */
603 /* Tasklet and skb queue to process calls from IRQ mode. All frames
604 * added to skb_queue will be processed, but frames in
605 * skb_queue_unreliable may be dropped if the total length of these
606 * queues increases over the limit. */
607 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
608 struct tasklet_struct tasklet;
609 struct sk_buff_head skb_queue;
610 struct sk_buff_head skb_queue_unreliable;
614 * The lock only protects the list, hash, timer and counter
615 * against manipulation, reads are done in RCU. Additionally,
616 * the lock protects each BSS's TIM bitmap.
619 unsigned long num_sta;
620 struct list_head sta_list;
621 struct list_head sta_flush_list;
622 struct work_struct sta_flush_work;
623 struct sta_info *sta_hash[STA_HASH_SIZE];
624 struct timer_list sta_cleanup;
626 unsigned long queues_pending[BITS_TO_LONGS(IEEE80211_MAX_QUEUES)];
627 unsigned long queues_pending_run[BITS_TO_LONGS(IEEE80211_MAX_QUEUES)];
628 struct ieee80211_tx_stored_packet pending_packet[IEEE80211_MAX_QUEUES];
629 struct tasklet_struct tx_pending_tasklet;
631 /* number of interfaces with corresponding IFF_ flags */
632 atomic_t iff_allmultis, iff_promiscs;
634 struct rate_control_ref *rate_ctrl;
637 int fragmentation_threshold;
638 int short_retry_limit; /* dot11ShortRetryLimit */
639 int long_retry_limit; /* dot11LongRetryLimit */
641 struct crypto_blkcipher *wep_tx_tfm;
642 struct crypto_blkcipher *wep_rx_tfm;
645 struct list_head interfaces;
648 * Key lock, protects sdata's key_list and sta_info's
649 * key pointers (write access, they're RCU.)
654 /* Scanning and BSS list */
655 bool sw_scanning, hw_scanning;
656 int scan_channel_idx;
657 enum ieee80211_band scan_band;
659 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
660 unsigned long last_scan_completed;
661 struct delayed_work scan_work;
662 struct ieee80211_sub_if_data *scan_sdata;
663 struct ieee80211_channel *oper_channel, *scan_channel;
664 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
665 size_t scan_ssid_len;
666 struct list_head bss_list;
667 struct ieee80211_bss *bss_hash[STA_HASH_SIZE];
671 /* dot11CountersTable */
672 u32 dot11TransmittedFragmentCount;
673 u32 dot11MulticastTransmittedFrameCount;
674 u32 dot11FailedCount;
676 u32 dot11MultipleRetryCount;
677 u32 dot11FrameDuplicateCount;
678 u32 dot11ReceivedFragmentCount;
679 u32 dot11MulticastReceivedFrameCount;
680 u32 dot11TransmittedFrameCount;
681 u32 dot11WEPUndecryptableCount;
683 #ifdef CONFIG_MAC80211_LEDS
684 int tx_led_counter, rx_led_counter;
685 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
686 char tx_led_name[32], rx_led_name[32],
687 assoc_led_name[32], radio_led_name[32];
690 #ifdef CONFIG_MAC80211_DEBUGFS
691 struct work_struct sta_debugfs_add;
694 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
695 /* TX/RX handler statistics */
696 unsigned int tx_handlers_drop;
697 unsigned int tx_handlers_queued;
698 unsigned int tx_handlers_drop_unencrypted;
699 unsigned int tx_handlers_drop_fragment;
700 unsigned int tx_handlers_drop_wep;
701 unsigned int tx_handlers_drop_not_assoc;
702 unsigned int tx_handlers_drop_unauth_port;
703 unsigned int rx_handlers_drop;
704 unsigned int rx_handlers_queued;
705 unsigned int rx_handlers_drop_nullfunc;
706 unsigned int rx_handlers_drop_defrag;
707 unsigned int rx_handlers_drop_short;
708 unsigned int rx_handlers_drop_passive_scan;
709 unsigned int tx_expand_skb_head;
710 unsigned int tx_expand_skb_head_cloned;
711 unsigned int rx_expand_skb_head;
712 unsigned int rx_expand_skb_head2;
713 unsigned int rx_handlers_fragments;
714 unsigned int tx_status_drop;
715 #define I802_DEBUG_INC(c) (c)++
716 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
717 #define I802_DEBUG_INC(c) do { } while (0)
718 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
721 int total_ps_buffered; /* total number of all buffered unicast and
722 * multicast packets for power saving stations
724 int wifi_wme_noack_test;
725 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
727 #ifdef CONFIG_MAC80211_DEBUGFS
728 struct local_debugfsdentries {
729 struct dentry *rcdir;
730 struct dentry *rcname;
731 struct dentry *frequency;
732 struct dentry *rts_threshold;
733 struct dentry *fragmentation_threshold;
734 struct dentry *short_retry_limit;
735 struct dentry *long_retry_limit;
736 struct dentry *total_ps_buffered;
737 struct dentry *wep_iv;
738 struct dentry *statistics;
739 struct local_debugfsdentries_statsdentries {
740 struct dentry *transmitted_fragment_count;
741 struct dentry *multicast_transmitted_frame_count;
742 struct dentry *failed_count;
743 struct dentry *retry_count;
744 struct dentry *multiple_retry_count;
745 struct dentry *frame_duplicate_count;
746 struct dentry *received_fragment_count;
747 struct dentry *multicast_received_frame_count;
748 struct dentry *transmitted_frame_count;
749 struct dentry *wep_undecryptable_count;
750 struct dentry *num_scans;
751 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
752 struct dentry *tx_handlers_drop;
753 struct dentry *tx_handlers_queued;
754 struct dentry *tx_handlers_drop_unencrypted;
755 struct dentry *tx_handlers_drop_fragment;
756 struct dentry *tx_handlers_drop_wep;
757 struct dentry *tx_handlers_drop_not_assoc;
758 struct dentry *tx_handlers_drop_unauth_port;
759 struct dentry *rx_handlers_drop;
760 struct dentry *rx_handlers_queued;
761 struct dentry *rx_handlers_drop_nullfunc;
762 struct dentry *rx_handlers_drop_defrag;
763 struct dentry *rx_handlers_drop_short;
764 struct dentry *rx_handlers_drop_passive_scan;
765 struct dentry *tx_expand_skb_head;
766 struct dentry *tx_expand_skb_head_cloned;
767 struct dentry *rx_expand_skb_head;
768 struct dentry *rx_expand_skb_head2;
769 struct dentry *rx_handlers_fragments;
770 struct dentry *tx_status_drop;
772 struct dentry *dot11ACKFailureCount;
773 struct dentry *dot11RTSFailureCount;
774 struct dentry *dot11FCSErrorCount;
775 struct dentry *dot11RTSSuccessCount;
777 struct dentry *stations;
783 static inline struct ieee80211_sub_if_data *
784 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
786 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
788 BUG_ON(!local || local->mdev == dev);
790 return netdev_priv(dev);
793 /* this struct represents 802.11n's RA/TID combination */
794 struct ieee80211_ra_tid {
799 /* Parsed Information Elements */
800 struct ieee802_11_elems {
804 /* pointers to IEs */
819 struct ieee80211_ht_cap *ht_cap_elem;
820 struct ieee80211_ht_info *ht_info_elem;
830 u8 *quiet_elem; /* first quite element */
832 /* length of them, respectively */
844 u8 ext_supp_rates_len;
853 u8 ch_switch_elem_len;
855 u8 pwr_constr_elem_len;
857 u8 num_of_quiet_elem; /* can be more the one */
860 static inline struct ieee80211_local *hw_to_local(
861 struct ieee80211_hw *hw)
863 return container_of(hw, struct ieee80211_local, hw);
866 static inline struct ieee80211_hw *local_to_hw(
867 struct ieee80211_local *local)
873 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
875 return compare_ether_addr(raddr, addr) == 0 ||
876 is_broadcast_ether_addr(raddr);
880 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
881 int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed);
882 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
883 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
885 void ieee80211_configure_filter(struct ieee80211_local *local);
887 /* wireless extensions */
888 extern const struct iw_handler_def ieee80211_iw_handler_def;
891 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
892 void ieee80211_scan_work(struct work_struct *work);
893 void ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
894 struct ieee80211_rx_status *rx_status);
895 int ieee80211_sta_set_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t len);
896 int ieee80211_sta_get_ssid(struct ieee80211_sub_if_data *sdata, char *ssid, size_t *len);
897 int ieee80211_sta_set_bssid(struct ieee80211_sub_if_data *sdata, u8 *bssid);
898 void ieee80211_sta_req_auth(struct ieee80211_sub_if_data *sdata,
899 struct ieee80211_if_sta *ifsta);
900 struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
901 struct sk_buff *skb, u8 *bssid,
902 u8 *addr, u64 supp_rates);
903 int ieee80211_sta_deauthenticate(struct ieee80211_sub_if_data *sdata, u16 reason);
904 int ieee80211_sta_disassociate(struct ieee80211_sub_if_data *sdata, u16 reason);
905 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
906 u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
907 struct ieee802_11_elems *elems,
908 enum ieee80211_band band);
909 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
910 u8 *ssid, size_t ssid_len);
912 /* scan/BSS handling */
913 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
914 u8 *ssid, size_t ssid_len);
915 int ieee80211_scan_results(struct ieee80211_local *local,
916 struct iw_request_info *info,
917 char *buf, size_t len);
919 ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata,
921 struct ieee80211_rx_status *rx_status);
922 void ieee80211_rx_bss_list_init(struct ieee80211_local *local);
923 void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local);
924 int ieee80211_sta_set_extra_ie(struct ieee80211_sub_if_data *sdata,
925 char *ie, size_t len);
927 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
928 int ieee80211_start_scan(struct ieee80211_sub_if_data *scan_sdata,
929 u8 *ssid, size_t ssid_len);
930 struct ieee80211_bss *
931 ieee80211_bss_info_update(struct ieee80211_local *local,
932 struct ieee80211_rx_status *rx_status,
933 struct ieee80211_mgmt *mgmt,
935 struct ieee802_11_elems *elems,
936 int freq, bool beacon);
937 struct ieee80211_bss *
938 ieee80211_rx_bss_add(struct ieee80211_local *local, u8 *bssid, int freq,
939 u8 *ssid, u8 ssid_len);
940 struct ieee80211_bss *
941 ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
942 u8 *ssid, u8 ssid_len);
943 void ieee80211_rx_bss_put(struct ieee80211_local *local,
944 struct ieee80211_bss *bss);
946 /* interface handling */
947 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
948 struct net_device **new_dev, enum nl80211_iftype type,
949 struct vif_params *params);
950 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
951 enum nl80211_iftype type);
952 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
953 void ieee80211_remove_interfaces(struct ieee80211_local *local);
956 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
957 void ieee80211_tx_pending(unsigned long data);
958 int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
959 int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
960 int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
963 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_ht_cap *ht_cap_ie,
964 struct ieee80211_sta_ht_cap *ht_cap);
965 void ieee80211_ht_info_ie_to_ht_bss_info(
966 struct ieee80211_ht_info *ht_add_info_ie,
967 struct ieee80211_ht_bss_info *bss_info);
968 u32 ieee80211_handle_ht(struct ieee80211_local *local,
969 struct ieee80211_sta_ht_cap *req_ht_cap,
970 struct ieee80211_ht_bss_info *req_bss_cap);
971 void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
973 void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
974 u16 tid, u16 initiator, u16 reason);
975 void ieee80211_sta_tear_down_BA_sessions(struct ieee80211_sub_if_data *sdata, u8 *addr);
976 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
977 struct sta_info *sta,
978 struct ieee80211_mgmt *mgmt, size_t len);
979 void ieee80211_process_addba_resp(struct ieee80211_local *local,
980 struct sta_info *sta,
981 struct ieee80211_mgmt *mgmt,
983 void ieee80211_process_addba_request(struct ieee80211_local *local,
984 struct sta_info *sta,
985 struct ieee80211_mgmt *mgmt,
988 /* Spectrum management */
989 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
990 struct ieee80211_mgmt *mgmt,
993 /* utility functions/constants */
994 extern void *mac80211_wiphy_privid; /* for wiphy privid */
995 extern const unsigned char rfc1042_header[6];
996 extern const unsigned char bridge_tunnel_header[6];
997 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
998 enum nl80211_iftype type);
999 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
1000 int rate, int erp, int short_preamble);
1001 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
1002 struct ieee80211_hdr *hdr);
1003 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata);
1004 void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
1006 void ieee802_11_parse_elems(u8 *start, size_t len,
1007 struct ieee802_11_elems *elems);
1008 int ieee80211_set_freq(struct ieee80211_sub_if_data *sdata, int freq);
1009 u64 ieee80211_mandatory_rates(struct ieee80211_local *local,
1010 enum ieee80211_band band);
1012 #ifdef CONFIG_MAC80211_NOINLINE
1013 #define debug_noinline noinline
1015 #define debug_noinline
1018 #endif /* IEEE80211_I_H */