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. */
36 #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
37 #endif /* ETH_P_PAE */
39 #define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08)
41 #define IEEE80211_FC(type, subtype) cpu_to_le16(type | subtype)
43 struct ieee80211_local;
45 /* Maximum number of broadcast/multicast frames to buffer when some of the
46 * associated stations are using power saving. */
47 #define AP_MAX_BC_BUFFER 128
49 /* Maximum number of frames buffered to all STAs, including multicast frames.
50 * Note: increasing this limit increases the potential memory requirement. Each
51 * frame can be up to about 2 kB long. */
52 #define TOTAL_MAX_TX_BUFFER 512
54 /* Required encryption head and tailroom */
55 #define IEEE80211_ENCRYPT_HEADROOM 8
56 #define IEEE80211_ENCRYPT_TAILROOM 12
58 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
59 * reception of at least three fragmented frames. This limit can be increased
60 * by changing this define, at the cost of slower frame reassembly and
61 * increased memory use (about 2 kB of RAM per entry). */
62 #define IEEE80211_FRAGMENT_MAX 4
64 struct ieee80211_fragment_entry {
65 unsigned long first_frag_time;
67 unsigned int rx_queue;
68 unsigned int last_frag;
69 unsigned int extra_len;
70 struct sk_buff_head skb_list;
71 int ccmp; /* Whether fragments were encrypted with CCMP */
72 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
76 struct ieee80211_sta_bss {
77 struct list_head list;
78 struct ieee80211_sta_bss *hnext;
84 u8 ssid[IEEE80211_MAX_SSID_LEN];
86 u16 capability; /* host byte order */
87 enum ieee80211_band band;
89 int signal, noise, qual;
100 #ifdef CONFIG_MAC80211_MESH
105 #define IEEE80211_MAX_SUPP_RATES 32
106 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
107 size_t supp_rates_len;
112 unsigned long last_update;
114 /* during assocation, we save an ERP value from a probe response so
115 * that we can feed ERP info to the driver when handling the
116 * association completes. these fields probably won't be up-to-date
117 * otherwise, you probably don't want to use them. */
122 static inline u8 *bss_mesh_cfg(struct ieee80211_sta_bss *bss)
124 #ifdef CONFIG_MAC80211_MESH
125 return bss->mesh_cfg;
130 static inline u8 *bss_mesh_id(struct ieee80211_sta_bss *bss)
132 #ifdef CONFIG_MAC80211_MESH
138 static inline u8 bss_mesh_id_len(struct ieee80211_sta_bss *bss)
140 #ifdef CONFIG_MAC80211_MESH
141 return bss->mesh_id_len;
147 typedef unsigned __bitwise__ ieee80211_tx_result;
148 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
149 #define TX_DROP ((__force ieee80211_tx_result) 1u)
150 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
152 #define IEEE80211_TX_FRAGMENTED BIT(0)
153 #define IEEE80211_TX_UNICAST BIT(1)
154 #define IEEE80211_TX_PS_BUFFERED BIT(2)
155 #define IEEE80211_TX_PROBE_LAST_FRAG BIT(3)
157 struct ieee80211_tx_data {
159 struct net_device *dev;
160 struct ieee80211_local *local;
161 struct ieee80211_sub_if_data *sdata;
162 struct sta_info *sta;
163 struct ieee80211_key *key;
165 struct ieee80211_channel *channel;
167 /* use this rate (if set) for last fragment; rate can
168 * be set to lower rate for the first fragments, e.g.,
169 * when using CTS protection with IEEE 802.11g. */
170 s8 last_frag_rate_idx;
172 /* Extra fragments (in addition to the first fragment
174 struct sk_buff **extra_frag;
182 typedef unsigned __bitwise__ ieee80211_rx_result;
183 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
184 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
185 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
186 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
188 #define IEEE80211_RX_IN_SCAN BIT(0)
189 /* frame is destined to interface currently processed (incl. multicast frames) */
190 #define IEEE80211_RX_RA_MATCH BIT(1)
191 #define IEEE80211_RX_AMSDU BIT(2)
192 #define IEEE80211_RX_CMNTR_REPORTED BIT(3)
193 #define IEEE80211_RX_FRAGMENTED BIT(4)
195 struct ieee80211_rx_data {
197 struct net_device *dev;
198 struct ieee80211_local *local;
199 struct ieee80211_sub_if_data *sdata;
200 struct sta_info *sta;
201 struct ieee80211_key *key;
202 struct ieee80211_rx_status *status;
203 struct ieee80211_rate *rate;
207 int sent_ps_buffered;
213 struct ieee80211_tx_stored_packet {
215 struct sk_buff **extra_frag;
216 s8 last_frag_rate_idx;
218 bool last_frag_rate_ctrl_probe;
223 int head_len, tail_len;
227 struct ieee80211_if_ap {
228 struct beacon_data *beacon;
230 struct list_head vlans;
232 u8 ssid[IEEE80211_MAX_SSID_LEN];
235 /* yes, this looks ugly, but guarantees that we can later use
237 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
238 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
239 struct sk_buff_head ps_bc_buf;
240 atomic_t num_sta_ps; /* number of stations in PS mode */
242 int num_beacons; /* number of TXed beacon frames for this BSS */
245 struct ieee80211_if_wds {
246 struct sta_info *sta;
247 u8 remote_addr[ETH_ALEN];
250 struct ieee80211_if_vlan {
251 struct list_head list;
255 __u32 fwded_frames; /* Mesh forwarded frames */
256 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
257 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
258 atomic_t estab_plinks;
261 #define PREQ_Q_F_START 0x1
262 #define PREQ_Q_F_REFRESH 0x2
263 struct mesh_preq_queue {
264 struct list_head list;
271 /* Mesh plink management parameters */
272 u16 dot11MeshRetryTimeout;
273 u16 dot11MeshConfirmTimeout;
274 u16 dot11MeshHoldingTimeout;
275 u16 dot11MeshMaxPeerLinks;
276 u8 dot11MeshMaxRetries;
278 bool auto_open_plinks;
279 /* HWMP parameters */
280 u8 dot11MeshHWMPmaxPREQretries;
281 u32 path_refresh_time;
282 u16 min_discovery_timeout;
283 u32 dot11MeshHWMPactivePathTimeout;
284 u16 dot11MeshHWMPpreqMinInterval;
285 u16 dot11MeshHWMPnetDiameterTraversalTime;
289 /* flags used in struct ieee80211_if_sta.flags */
290 #define IEEE80211_STA_SSID_SET BIT(0)
291 #define IEEE80211_STA_BSSID_SET BIT(1)
292 #define IEEE80211_STA_PREV_BSSID_SET BIT(2)
293 #define IEEE80211_STA_AUTHENTICATED BIT(3)
294 #define IEEE80211_STA_ASSOCIATED BIT(4)
295 #define IEEE80211_STA_PROBEREQ_POLL BIT(5)
296 #define IEEE80211_STA_CREATE_IBSS BIT(6)
297 #define IEEE80211_STA_MIXED_CELL BIT(7)
298 #define IEEE80211_STA_WMM_ENABLED BIT(8)
299 #define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
300 #define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
301 #define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
302 #define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
303 struct ieee80211_if_sta {
304 struct timer_list timer;
305 struct work_struct work;
306 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
307 u8 ssid[IEEE80211_MAX_SSID_LEN];
309 IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
310 IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
311 IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED,
315 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
316 size_t scan_ssid_len;
317 #ifdef CONFIG_MAC80211_MESH
318 struct timer_list mesh_path_timer;
319 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
321 /* Active Path Selection Protocol Identifier */
323 /* Active Path Selection Metric Identifier */
325 /* Congestion Control Mode Identifier */
327 /* Local mesh Destination Sequence Number */
329 /* Last used PREQ ID */
332 /* Timestamp of last DSN update */
333 unsigned long last_dsn_update;
334 /* Timestamp of last DSN sent */
335 unsigned long last_preq;
336 struct mesh_rmc *rmc;
337 spinlock_t mesh_preq_queue_lock;
338 struct mesh_preq_queue preq_queue;
340 struct mesh_stats mshstats;
341 struct mesh_config mshcfg;
343 bool accepting_plinks;
347 u8 *extra_ie; /* to be added to the end of AssocReq */
350 /* The last AssocReq/Resp IEs */
351 u8 *assocreq_ies, *assocresp_ies;
352 size_t assocreq_ies_len, assocresp_ies_len;
354 struct sk_buff_head skb_queue;
356 int auth_tries, assoc_tries;
358 unsigned long request;
360 unsigned long last_probe;
363 #define IEEE80211_STA_REQ_SCAN 0
364 #define IEEE80211_STA_REQ_AUTH 1
365 #define IEEE80211_STA_REQ_RUN 2
367 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
368 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
369 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
370 unsigned int auth_algs; /* bitfield of allowed auth algs */
371 int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
372 int auth_transaction;
374 unsigned long ibss_join_req;
375 struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
376 u32 supp_rates_bits[IEEE80211_NUM_BANDS];
378 int wmm_last_param_set;
379 int num_beacons; /* number of TXed beacon frames by this STA */
382 static inline void ieee80211_if_sta_set_mesh_id(struct ieee80211_if_sta *ifsta,
383 u8 mesh_id_len, u8 *mesh_id)
385 #ifdef CONFIG_MAC80211_MESH
386 ifsta->mesh_id_len = mesh_id_len;
387 memcpy(ifsta->mesh_id, mesh_id, mesh_id_len);
391 #ifdef CONFIG_MAC80211_MESH
392 #define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
393 do { (sta)->mshstats.name++; } while (0)
395 #define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
399 /* flags used in struct ieee80211_sub_if_data.flags */
400 #define IEEE80211_SDATA_ALLMULTI BIT(0)
401 #define IEEE80211_SDATA_PROMISC BIT(1)
402 #define IEEE80211_SDATA_USERSPACE_MLME BIT(2)
403 #define IEEE80211_SDATA_OPERATING_GMODE BIT(3)
404 struct ieee80211_sub_if_data {
405 struct list_head list;
407 struct wireless_dev wdev;
410 struct list_head key_list;
412 struct net_device *dev;
413 struct ieee80211_local *local;
417 int drop_unencrypted;
420 * basic rates of this AP or the AP we're associated to
424 /* Fragment table for host-based reassembly */
425 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
426 unsigned int fragment_next;
428 #define NUM_DEFAULT_KEYS 4
429 struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
430 struct ieee80211_key *default_key;
432 /* BSS configuration for this interface. */
433 struct ieee80211_bss_conf bss_conf;
436 * AP this belongs to: self in AP mode and
437 * corresponding AP in VLAN mode, NULL for
438 * all others (might be needed later in IBSS)
440 struct ieee80211_if_ap *bss;
442 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
443 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
446 struct ieee80211_if_ap ap;
447 struct ieee80211_if_wds wds;
448 struct ieee80211_if_vlan vlan;
449 struct ieee80211_if_sta sta;
453 #ifdef CONFIG_MAC80211_DEBUGFS
454 struct dentry *debugfsdir;
457 struct dentry *drop_unencrypted;
458 struct dentry *state;
459 struct dentry *bssid;
460 struct dentry *prev_bssid;
461 struct dentry *ssid_len;
463 struct dentry *ap_capab;
464 struct dentry *capab;
465 struct dentry *extra_ie_len;
466 struct dentry *auth_tries;
467 struct dentry *assoc_tries;
468 struct dentry *auth_algs;
469 struct dentry *auth_alg;
470 struct dentry *auth_transaction;
471 struct dentry *flags;
472 struct dentry *num_beacons_sta;
475 struct dentry *drop_unencrypted;
476 struct dentry *num_sta_ps;
477 struct dentry *dtim_count;
478 struct dentry *num_beacons;
479 struct dentry *force_unicast_rateidx;
480 struct dentry *max_ratectrl_rateidx;
481 struct dentry *num_buffered_multicast;
484 struct dentry *drop_unencrypted;
488 struct dentry *drop_unencrypted;
493 struct dentry *default_key;
496 #ifdef CONFIG_MAC80211_MESH
497 struct dentry *mesh_stats_dir;
499 struct dentry *fwded_frames;
500 struct dentry *dropped_frames_ttl;
501 struct dentry *dropped_frames_no_route;
502 struct dentry *estab_plinks;
503 struct timer_list mesh_path_timer;
506 struct dentry *mesh_config_dir;
508 struct dentry *dot11MeshRetryTimeout;
509 struct dentry *dot11MeshConfirmTimeout;
510 struct dentry *dot11MeshHoldingTimeout;
511 struct dentry *dot11MeshMaxRetries;
512 struct dentry *dot11MeshTTL;
513 struct dentry *auto_open_plinks;
514 struct dentry *dot11MeshMaxPeerLinks;
515 struct dentry *dot11MeshHWMPactivePathTimeout;
516 struct dentry *dot11MeshHWMPpreqMinInterval;
517 struct dentry *dot11MeshHWMPnetDiameterTraversalTime;
518 struct dentry *dot11MeshHWMPmaxPREQretries;
519 struct dentry *path_refresh_time;
520 struct dentry *min_discovery_timeout;
525 /* must be last, dynamically sized area in this! */
526 struct ieee80211_vif vif;
530 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
532 return container_of(p, struct ieee80211_sub_if_data, vif);
536 IEEE80211_RX_MSG = 1,
537 IEEE80211_TX_STATUS_MSG = 2,
538 IEEE80211_DELBA_MSG = 3,
539 IEEE80211_ADDBA_MSG = 4,
542 /* maximum number of hardware queues we support. */
543 #define QD_MAX_QUEUES (IEEE80211_MAX_AMPDU_QUEUES + IEEE80211_MAX_QUEUES)
545 struct ieee80211_local {
546 /* embed the driver visible part.
547 * don't cast (use the static inlines below), but we keep
548 * it first anyway so they become a no-op */
549 struct ieee80211_hw hw;
551 const struct ieee80211_ops *ops;
553 unsigned long queue_pool[BITS_TO_LONGS(QD_MAX_QUEUES)];
555 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
557 int monitors, cooked_mntrs;
558 /* number of interfaces with corresponding FIF_ flags */
559 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss;
560 unsigned int filter_flags; /* FIF_* */
561 struct iw_statistics wstats;
563 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
564 int tx_headroom; /* required headroom for hardware/radiotap */
566 /* Tasklet and skb queue to process calls from IRQ mode. All frames
567 * added to skb_queue will be processed, but frames in
568 * skb_queue_unreliable may be dropped if the total length of these
569 * queues increases over the limit. */
570 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
571 struct tasklet_struct tasklet;
572 struct sk_buff_head skb_queue;
573 struct sk_buff_head skb_queue_unreliable;
577 * The lock only protects the list, hash, timer and counter
578 * against manipulation, reads are done in RCU. Additionally,
579 * the lock protects each BSS's TIM bitmap.
582 unsigned long num_sta;
583 struct list_head sta_list;
584 struct list_head sta_flush_list;
585 struct work_struct sta_flush_work;
586 struct sta_info *sta_hash[STA_HASH_SIZE];
587 struct timer_list sta_cleanup;
589 unsigned long queues_pending[BITS_TO_LONGS(IEEE80211_MAX_QUEUES)];
590 unsigned long queues_pending_run[BITS_TO_LONGS(IEEE80211_MAX_QUEUES)];
591 struct ieee80211_tx_stored_packet pending_packet[IEEE80211_MAX_QUEUES];
592 struct tasklet_struct tx_pending_tasklet;
594 /* number of interfaces with corresponding IFF_ flags */
595 atomic_t iff_allmultis, iff_promiscs;
597 struct rate_control_ref *rate_ctrl;
600 int fragmentation_threshold;
601 int short_retry_limit; /* dot11ShortRetryLimit */
602 int long_retry_limit; /* dot11LongRetryLimit */
604 struct crypto_blkcipher *wep_tx_tfm;
605 struct crypto_blkcipher *wep_rx_tfm;
608 int bridge_packets; /* bridge packets between associated stations and
609 * deliver multicast frames both back to wireless
610 * media and to the local net stack */
612 struct list_head interfaces;
615 * Key lock, protects sdata's key_list and sta_info's
616 * key pointers (write access, they're RCU.)
621 bool sta_sw_scanning;
622 bool sta_hw_scanning;
623 int scan_channel_idx;
624 enum ieee80211_band scan_band;
626 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
627 unsigned long last_scan_completed;
628 struct delayed_work scan_work;
629 struct net_device *scan_dev;
630 struct ieee80211_channel *oper_channel, *scan_channel;
631 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
632 size_t scan_ssid_len;
633 struct list_head sta_bss_list;
634 struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
635 spinlock_t sta_bss_lock;
638 /* dot11CountersTable */
639 u32 dot11TransmittedFragmentCount;
640 u32 dot11MulticastTransmittedFrameCount;
641 u32 dot11FailedCount;
643 u32 dot11MultipleRetryCount;
644 u32 dot11FrameDuplicateCount;
645 u32 dot11ReceivedFragmentCount;
646 u32 dot11MulticastReceivedFrameCount;
647 u32 dot11TransmittedFrameCount;
648 u32 dot11WEPUndecryptableCount;
650 #ifdef CONFIG_MAC80211_LEDS
651 int tx_led_counter, rx_led_counter;
652 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
653 char tx_led_name[32], rx_led_name[32],
654 assoc_led_name[32], radio_led_name[32];
657 #ifdef CONFIG_MAC80211_DEBUGFS
658 struct work_struct sta_debugfs_add;
661 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
662 /* TX/RX handler statistics */
663 unsigned int tx_handlers_drop;
664 unsigned int tx_handlers_queued;
665 unsigned int tx_handlers_drop_unencrypted;
666 unsigned int tx_handlers_drop_fragment;
667 unsigned int tx_handlers_drop_wep;
668 unsigned int tx_handlers_drop_not_assoc;
669 unsigned int tx_handlers_drop_unauth_port;
670 unsigned int rx_handlers_drop;
671 unsigned int rx_handlers_queued;
672 unsigned int rx_handlers_drop_nullfunc;
673 unsigned int rx_handlers_drop_defrag;
674 unsigned int rx_handlers_drop_short;
675 unsigned int rx_handlers_drop_passive_scan;
676 unsigned int tx_expand_skb_head;
677 unsigned int tx_expand_skb_head_cloned;
678 unsigned int rx_expand_skb_head;
679 unsigned int rx_expand_skb_head2;
680 unsigned int rx_handlers_fragments;
681 unsigned int tx_status_drop;
682 #define I802_DEBUG_INC(c) (c)++
683 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
684 #define I802_DEBUG_INC(c) do { } while (0)
685 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
688 int total_ps_buffered; /* total number of all buffered unicast and
689 * multicast packets for power saving stations
691 int wifi_wme_noack_test;
692 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
694 #ifdef CONFIG_MAC80211_DEBUGFS
695 struct local_debugfsdentries {
696 struct dentry *frequency;
697 struct dentry *antenna_sel_tx;
698 struct dentry *antenna_sel_rx;
699 struct dentry *bridge_packets;
700 struct dentry *rts_threshold;
701 struct dentry *fragmentation_threshold;
702 struct dentry *short_retry_limit;
703 struct dentry *long_retry_limit;
704 struct dentry *total_ps_buffered;
705 struct dentry *wep_iv;
706 struct dentry *statistics;
707 struct local_debugfsdentries_statsdentries {
708 struct dentry *transmitted_fragment_count;
709 struct dentry *multicast_transmitted_frame_count;
710 struct dentry *failed_count;
711 struct dentry *retry_count;
712 struct dentry *multiple_retry_count;
713 struct dentry *frame_duplicate_count;
714 struct dentry *received_fragment_count;
715 struct dentry *multicast_received_frame_count;
716 struct dentry *transmitted_frame_count;
717 struct dentry *wep_undecryptable_count;
718 struct dentry *num_scans;
719 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
720 struct dentry *tx_handlers_drop;
721 struct dentry *tx_handlers_queued;
722 struct dentry *tx_handlers_drop_unencrypted;
723 struct dentry *tx_handlers_drop_fragment;
724 struct dentry *tx_handlers_drop_wep;
725 struct dentry *tx_handlers_drop_not_assoc;
726 struct dentry *tx_handlers_drop_unauth_port;
727 struct dentry *rx_handlers_drop;
728 struct dentry *rx_handlers_queued;
729 struct dentry *rx_handlers_drop_nullfunc;
730 struct dentry *rx_handlers_drop_defrag;
731 struct dentry *rx_handlers_drop_short;
732 struct dentry *rx_handlers_drop_passive_scan;
733 struct dentry *tx_expand_skb_head;
734 struct dentry *tx_expand_skb_head_cloned;
735 struct dentry *rx_expand_skb_head;
736 struct dentry *rx_expand_skb_head2;
737 struct dentry *rx_handlers_fragments;
738 struct dentry *tx_status_drop;
740 struct dentry *dot11ACKFailureCount;
741 struct dentry *dot11RTSFailureCount;
742 struct dentry *dot11FCSErrorCount;
743 struct dentry *dot11RTSSuccessCount;
745 struct dentry *stations;
751 static inline struct ieee80211_sub_if_data *
752 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
754 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
756 BUG_ON(!local || local->mdev == dev);
758 return netdev_priv(dev);
761 /* this struct represents 802.11n's RA/TID combination */
762 struct ieee80211_ra_tid {
767 /* Parsed Information Elements */
768 struct ieee802_11_elems {
769 /* pointers to IEs */
795 u8 *quiet_elem; /* first quite element */
797 /* length of them, respectively */
809 u8 ext_supp_rates_len;
820 u8 ch_switch_elem_len;
822 u8 pwr_constr_elem_len;
824 u8 num_of_quiet_elem; /* can be more the one */
827 static inline struct ieee80211_local *hw_to_local(
828 struct ieee80211_hw *hw)
830 return container_of(hw, struct ieee80211_local, hw);
833 static inline struct ieee80211_hw *local_to_hw(
834 struct ieee80211_local *local)
839 struct sta_attribute {
840 struct attribute attr;
841 ssize_t (*show)(const struct sta_info *, char *buf);
842 ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
845 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
847 return compare_ether_addr(raddr, addr) == 0 ||
848 is_broadcast_ether_addr(raddr);
853 int ieee80211_hw_config(struct ieee80211_local *local);
854 int ieee80211_if_config(struct ieee80211_sub_if_data *sdata, u32 changed);
855 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
856 u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht,
857 struct ieee80211_ht_info *req_ht_cap,
858 struct ieee80211_ht_bss_info *req_bss_cap);
860 /* ieee80211_ioctl.c */
861 extern const struct iw_handler_def ieee80211_iw_handler_def;
862 int ieee80211_set_freq(struct net_device *dev, int freq);
864 /* ieee80211_sta.c */
865 void ieee80211_sta_timer(unsigned long data);
866 void ieee80211_sta_work(struct work_struct *work);
867 void ieee80211_sta_scan_work(struct work_struct *work);
868 void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
869 struct ieee80211_rx_status *rx_status);
870 int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
871 int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
872 int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
873 int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
874 void ieee80211_sta_req_auth(struct net_device *dev,
875 struct ieee80211_if_sta *ifsta);
876 int ieee80211_sta_scan_results(struct net_device *dev,
877 struct iw_request_info *info,
878 char *buf, size_t len);
879 ieee80211_rx_result ieee80211_sta_rx_scan(
880 struct net_device *dev, struct sk_buff *skb,
881 struct ieee80211_rx_status *rx_status);
882 void ieee80211_rx_bss_list_init(struct ieee80211_local *local);
883 void ieee80211_rx_bss_list_deinit(struct ieee80211_local *local);
884 int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
885 struct sta_info *ieee80211_ibss_add_sta(struct net_device *dev,
886 struct sk_buff *skb, u8 *bssid,
887 u8 *addr, u64 supp_rates);
888 int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
889 int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
890 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
892 u32 ieee80211_reset_erp_info(struct net_device *dev);
893 int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
894 struct ieee80211_ht_info *ht_info);
895 int ieee80211_ht_addt_info_ie_to_ht_bss_info(
896 struct ieee80211_ht_addt_info *ht_add_info_ie,
897 struct ieee80211_ht_bss_info *bss_info);
898 void ieee80211_send_addba_request(struct net_device *dev, const u8 *da,
899 u16 tid, u8 dialog_token, u16 start_seq_num,
900 u16 agg_size, u16 timeout);
901 void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid,
902 u16 initiator, u16 reason_code);
903 void ieee80211_send_bar(struct net_device *dev, u8 *ra, u16 tid, u16 ssn);
905 void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *da,
906 u16 tid, u16 initiator, u16 reason);
907 void sta_addba_resp_timer_expired(unsigned long data);
908 void ieee80211_sta_tear_down_BA_sessions(struct net_device *dev, u8 *addr);
909 u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
910 struct ieee802_11_elems *elems,
911 enum ieee80211_band band);
912 void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb,
914 void ieee802_11_parse_elems(u8 *start, size_t len,
915 struct ieee802_11_elems *elems);
917 #ifdef CONFIG_MAC80211_MESH
918 void ieee80211_start_mesh(struct net_device *dev);
920 static inline void ieee80211_start_mesh(struct net_device *dev)
924 /* interface handling */
925 void ieee80211_if_setup(struct net_device *dev);
926 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
927 struct net_device **new_dev, enum ieee80211_if_types type,
928 struct vif_params *params);
929 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
930 enum ieee80211_if_types type);
931 void ieee80211_if_remove(struct net_device *dev);
932 void ieee80211_remove_interfaces(struct ieee80211_local *local);
935 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
936 void ieee80211_tx_pending(unsigned long data);
937 int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
938 int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
939 int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
941 /* utility functions/constants */
942 extern void *mac80211_wiphy_privid; /* for wiphy privid */
943 extern const unsigned char rfc1042_header[6];
944 extern const unsigned char bridge_tunnel_header[6];
945 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
946 enum ieee80211_if_types type);
947 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
948 int rate, int erp, int short_preamble);
949 void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
950 struct ieee80211_hdr *hdr);
952 #ifdef CONFIG_MAC80211_NOINLINE
953 #define debug_noinline noinline
955 #define debug_noinline
958 #endif /* IEEE80211_I_H */