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>
30 /* ieee80211.o internal definitions, etc. These are not included into
31 * low-level drivers. */
34 #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
35 #endif /* ETH_P_PAE */
37 #define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08)
39 #define IEEE80211_FC(type, subtype) cpu_to_le16(type | subtype)
41 struct ieee80211_local;
43 /* Maximum number of broadcast/multicast frames to buffer when some of the
44 * associated stations are using power saving. */
45 #define AP_MAX_BC_BUFFER 128
47 /* Maximum number of frames buffered to all STAs, including multicast frames.
48 * Note: increasing this limit increases the potential memory requirement. Each
49 * frame can be up to about 2 kB long. */
50 #define TOTAL_MAX_TX_BUFFER 512
52 /* Required encryption head and tailroom */
53 #define IEEE80211_ENCRYPT_HEADROOM 8
54 #define IEEE80211_ENCRYPT_TAILROOM 12
56 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
57 * reception of at least three fragmented frames. This limit can be increased
58 * by changing this define, at the cost of slower frame reassembly and
59 * increased memory use (about 2 kB of RAM per entry). */
60 #define IEEE80211_FRAGMENT_MAX 4
62 struct ieee80211_fragment_entry {
63 unsigned long first_frag_time;
65 unsigned int rx_queue;
66 unsigned int last_frag;
67 unsigned int extra_len;
68 struct sk_buff_head skb_list;
69 int ccmp; /* Whether fragments were encrypted with CCMP */
70 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
74 struct ieee80211_sta_bss {
75 struct list_head list;
76 struct ieee80211_sta_bss *hnext;
82 u8 ssid[IEEE80211_MAX_SSID_LEN];
83 u16 capability; /* host byte order */
84 enum ieee80211_band band;
86 int signal, noise, qual;
97 #ifdef CONFIG_MAC80211_MESH
102 #define IEEE80211_MAX_SUPP_RATES 32
103 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
104 size_t supp_rates_len;
109 unsigned long last_update;
111 /* during assocation, we save an ERP value from a probe response so
112 * that we can feed ERP info to the driver when handling the
113 * association completes. these fields probably won't be up-to-date
114 * otherwise, you probably don't want to use them. */
119 static inline u8 *bss_mesh_cfg(struct ieee80211_sta_bss *bss)
121 #ifdef CONFIG_MAC80211_MESH
122 return bss->mesh_cfg;
127 static inline u8 *bss_mesh_id(struct ieee80211_sta_bss *bss)
129 #ifdef CONFIG_MAC80211_MESH
135 static inline u8 bss_mesh_id_len(struct ieee80211_sta_bss *bss)
137 #ifdef CONFIG_MAC80211_MESH
138 return bss->mesh_id_len;
144 typedef unsigned __bitwise__ ieee80211_tx_result;
145 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
146 #define TX_DROP ((__force ieee80211_tx_result) 1u)
147 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
149 #define IEEE80211_TX_FRAGMENTED BIT(0)
150 #define IEEE80211_TX_UNICAST BIT(1)
151 #define IEEE80211_TX_PS_BUFFERED BIT(2)
152 #define IEEE80211_TX_PROBE_LAST_FRAG BIT(3)
154 struct ieee80211_tx_data {
156 struct net_device *dev;
157 struct ieee80211_local *local;
158 struct ieee80211_sub_if_data *sdata;
159 struct sta_info *sta;
160 struct ieee80211_key *key;
162 struct ieee80211_channel *channel;
164 /* use this rate (if set) for last fragment; rate can
165 * be set to lower rate for the first fragments, e.g.,
166 * when using CTS protection with IEEE 802.11g. */
167 s8 last_frag_rate_idx;
169 /* Extra fragments (in addition to the first fragment
171 struct sk_buff **extra_frag;
179 typedef unsigned __bitwise__ ieee80211_rx_result;
180 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
181 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
182 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
183 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
185 #define IEEE80211_RX_IN_SCAN BIT(0)
186 /* frame is destined to interface currently processed (incl. multicast frames) */
187 #define IEEE80211_RX_RA_MATCH BIT(1)
188 #define IEEE80211_RX_AMSDU BIT(2)
189 #define IEEE80211_RX_CMNTR_REPORTED BIT(3)
190 #define IEEE80211_RX_FRAGMENTED BIT(4)
192 struct ieee80211_rx_data {
194 struct net_device *dev;
195 struct ieee80211_local *local;
196 struct ieee80211_sub_if_data *sdata;
197 struct sta_info *sta;
198 struct ieee80211_key *key;
199 struct ieee80211_rx_status *status;
200 struct ieee80211_rate *rate;
204 int sent_ps_buffered;
210 struct ieee80211_tx_stored_packet {
212 struct sk_buff **extra_frag;
213 s8 last_frag_rate_idx;
215 bool last_frag_rate_ctrl_probe;
220 int head_len, tail_len;
224 struct ieee80211_if_ap {
225 struct beacon_data *beacon;
227 struct list_head vlans;
229 u8 ssid[IEEE80211_MAX_SSID_LEN];
232 /* yes, this looks ugly, but guarantees that we can later use
234 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
235 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
236 struct sk_buff_head ps_bc_buf;
237 atomic_t num_sta_ps; /* number of stations in PS mode */
239 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
240 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
241 int num_beacons; /* number of TXed beacon frames for this BSS */
244 struct ieee80211_if_wds {
245 struct sta_info *sta;
246 u8 remote_addr[ETH_ALEN];
249 struct ieee80211_if_vlan {
250 struct ieee80211_sub_if_data *ap;
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
426 /* Fragment table for host-based reassembly */
427 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
428 unsigned int fragment_next;
430 #define NUM_DEFAULT_KEYS 4
431 struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
432 struct ieee80211_key *default_key;
435 * BSS configuration for this interface.
437 * FIXME: I feel bad putting this here when we already have a
438 * bss pointer, but the bss pointer is just wrong when
439 * you have multiple virtual STA mode interfaces...
440 * This needs to be fixed.
442 struct ieee80211_bss_conf bss_conf;
443 struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
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);
535 #define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
538 IEEE80211_RX_MSG = 1,
539 IEEE80211_TX_STATUS_MSG = 2,
540 IEEE80211_DELBA_MSG = 3,
541 IEEE80211_ADDBA_MSG = 4,
544 struct ieee80211_local {
545 /* embed the driver visible part.
546 * don't cast (use the static inlines below), but we keep
547 * it first anyway so they become a no-op */
548 struct ieee80211_hw hw;
550 const struct ieee80211_ops *ops;
552 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
554 int monitors, cooked_mntrs;
555 /* number of interfaces with corresponding FIF_ flags */
556 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss;
557 unsigned int filter_flags; /* FIF_* */
558 struct iw_statistics wstats;
560 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
561 int tx_headroom; /* required headroom for hardware/radiotap */
564 IEEE80211_DEV_UNINITIALIZED = 0,
565 IEEE80211_DEV_REGISTERED,
566 IEEE80211_DEV_UNREGISTERED,
569 /* Tasklet and skb queue to process calls from IRQ mode. All frames
570 * added to skb_queue will be processed, but frames in
571 * skb_queue_unreliable may be dropped if the total length of these
572 * queues increases over the limit. */
573 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
574 struct tasklet_struct tasklet;
575 struct sk_buff_head skb_queue;
576 struct sk_buff_head skb_queue_unreliable;
580 * The lock only protects the list, hash, timer and counter
581 * against manipulation, reads are done in RCU. Additionally,
582 * the lock protects each BSS's TIM bitmap.
585 unsigned long num_sta;
586 struct list_head sta_list;
587 struct list_head sta_flush_list;
588 struct work_struct sta_flush_work;
589 struct sta_info *sta_hash[STA_HASH_SIZE];
590 struct timer_list sta_cleanup;
592 unsigned long queues_pending[BITS_TO_LONGS(IEEE80211_MAX_QUEUES)];
593 struct ieee80211_tx_stored_packet pending_packet[IEEE80211_MAX_QUEUES];
594 struct tasklet_struct tx_pending_tasklet;
596 /* number of interfaces with corresponding IFF_ flags */
597 atomic_t iff_allmultis, iff_promiscs;
599 struct rate_control_ref *rate_ctrl;
602 int fragmentation_threshold;
603 int short_retry_limit; /* dot11ShortRetryLimit */
604 int long_retry_limit; /* dot11LongRetryLimit */
606 struct crypto_blkcipher *wep_tx_tfm;
607 struct crypto_blkcipher *wep_rx_tfm;
610 int bridge_packets; /* bridge packets between associated stations and
611 * deliver multicast frames both back to wireless
612 * media and to the local net stack */
614 struct list_head interfaces;
617 * Key lock, protects sdata's key_list and sta_info's
618 * key pointers (write access, they're RCU.)
623 bool sta_sw_scanning;
624 bool sta_hw_scanning;
625 int scan_channel_idx;
626 enum ieee80211_band scan_band;
628 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
629 unsigned long last_scan_completed;
630 struct delayed_work scan_work;
631 struct net_device *scan_dev;
632 struct ieee80211_channel *oper_channel, *scan_channel;
633 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
634 size_t scan_ssid_len;
635 struct list_head sta_bss_list;
636 struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
637 spinlock_t sta_bss_lock;
640 /* dot11CountersTable */
641 u32 dot11TransmittedFragmentCount;
642 u32 dot11MulticastTransmittedFrameCount;
643 u32 dot11FailedCount;
645 u32 dot11MultipleRetryCount;
646 u32 dot11FrameDuplicateCount;
647 u32 dot11ReceivedFragmentCount;
648 u32 dot11MulticastReceivedFrameCount;
649 u32 dot11TransmittedFrameCount;
650 u32 dot11WEPUndecryptableCount;
652 #ifdef CONFIG_MAC80211_LEDS
653 int tx_led_counter, rx_led_counter;
654 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
655 char tx_led_name[32], rx_led_name[32],
656 assoc_led_name[32], radio_led_name[32];
659 #ifdef CONFIG_MAC80211_DEBUGFS
660 struct work_struct sta_debugfs_add;
663 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
664 /* TX/RX handler statistics */
665 unsigned int tx_handlers_drop;
666 unsigned int tx_handlers_queued;
667 unsigned int tx_handlers_drop_unencrypted;
668 unsigned int tx_handlers_drop_fragment;
669 unsigned int tx_handlers_drop_wep;
670 unsigned int tx_handlers_drop_not_assoc;
671 unsigned int tx_handlers_drop_unauth_port;
672 unsigned int rx_handlers_drop;
673 unsigned int rx_handlers_queued;
674 unsigned int rx_handlers_drop_nullfunc;
675 unsigned int rx_handlers_drop_defrag;
676 unsigned int rx_handlers_drop_short;
677 unsigned int rx_handlers_drop_passive_scan;
678 unsigned int tx_expand_skb_head;
679 unsigned int tx_expand_skb_head_cloned;
680 unsigned int rx_expand_skb_head;
681 unsigned int rx_expand_skb_head2;
682 unsigned int rx_handlers_fragments;
683 unsigned int tx_status_drop;
684 #define I802_DEBUG_INC(c) (c)++
685 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
686 #define I802_DEBUG_INC(c) do { } while (0)
687 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
690 int total_ps_buffered; /* total number of all buffered unicast and
691 * multicast packets for power saving stations
693 int wifi_wme_noack_test;
694 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
696 #ifdef CONFIG_MAC80211_DEBUGFS
697 struct local_debugfsdentries {
698 struct dentry *frequency;
699 struct dentry *antenna_sel_tx;
700 struct dentry *antenna_sel_rx;
701 struct dentry *bridge_packets;
702 struct dentry *rts_threshold;
703 struct dentry *fragmentation_threshold;
704 struct dentry *short_retry_limit;
705 struct dentry *long_retry_limit;
706 struct dentry *total_ps_buffered;
707 struct dentry *wep_iv;
708 struct dentry *statistics;
709 struct local_debugfsdentries_statsdentries {
710 struct dentry *transmitted_fragment_count;
711 struct dentry *multicast_transmitted_frame_count;
712 struct dentry *failed_count;
713 struct dentry *retry_count;
714 struct dentry *multiple_retry_count;
715 struct dentry *frame_duplicate_count;
716 struct dentry *received_fragment_count;
717 struct dentry *multicast_received_frame_count;
718 struct dentry *transmitted_frame_count;
719 struct dentry *wep_undecryptable_count;
720 struct dentry *num_scans;
721 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
722 struct dentry *tx_handlers_drop;
723 struct dentry *tx_handlers_queued;
724 struct dentry *tx_handlers_drop_unencrypted;
725 struct dentry *tx_handlers_drop_fragment;
726 struct dentry *tx_handlers_drop_wep;
727 struct dentry *tx_handlers_drop_not_assoc;
728 struct dentry *tx_handlers_drop_unauth_port;
729 struct dentry *rx_handlers_drop;
730 struct dentry *rx_handlers_queued;
731 struct dentry *rx_handlers_drop_nullfunc;
732 struct dentry *rx_handlers_drop_defrag;
733 struct dentry *rx_handlers_drop_short;
734 struct dentry *rx_handlers_drop_passive_scan;
735 struct dentry *tx_expand_skb_head;
736 struct dentry *tx_expand_skb_head_cloned;
737 struct dentry *rx_expand_skb_head;
738 struct dentry *rx_expand_skb_head2;
739 struct dentry *rx_handlers_fragments;
740 struct dentry *tx_status_drop;
742 struct dentry *dot11ACKFailureCount;
743 struct dentry *dot11RTSFailureCount;
744 struct dentry *dot11FCSErrorCount;
745 struct dentry *dot11RTSSuccessCount;
747 struct dentry *stations;
753 static inline int ieee80211_is_multiqueue(struct ieee80211_local *local)
755 #ifdef CONFIG_MAC80211_QOS
756 return netif_is_multiqueue(local->mdev);
762 /* this struct represents 802.11n's RA/TID combination */
763 struct ieee80211_ra_tid {
768 /* Parsed Information Elements */
769 struct ieee802_11_elems {
770 /* pointers to IEs */
794 /* length of them, respectively */
806 u8 ext_supp_rates_len;
819 static inline struct ieee80211_local *hw_to_local(
820 struct ieee80211_hw *hw)
822 return container_of(hw, struct ieee80211_local, hw);
825 static inline struct ieee80211_hw *local_to_hw(
826 struct ieee80211_local *local)
831 struct sta_attribute {
832 struct attribute attr;
833 ssize_t (*show)(const struct sta_info *, char *buf);
834 ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
837 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
839 return compare_ether_addr(raddr, addr) == 0 ||
840 is_broadcast_ether_addr(raddr);
845 int ieee80211_hw_config(struct ieee80211_local *local);
846 int ieee80211_if_config(struct net_device *dev);
847 int ieee80211_if_config_beacon(struct net_device *dev);
848 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
849 void ieee80211_if_setup(struct net_device *dev);
850 u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht,
851 struct ieee80211_ht_info *req_ht_cap,
852 struct ieee80211_ht_bss_info *req_bss_cap);
854 /* ieee80211_ioctl.c */
855 extern const struct iw_handler_def ieee80211_iw_handler_def;
856 int ieee80211_set_freq(struct net_device *dev, int freq);
858 /* ieee80211_sta.c */
859 void ieee80211_sta_timer(unsigned long data);
860 void ieee80211_sta_work(struct work_struct *work);
861 void ieee80211_sta_scan_work(struct work_struct *work);
862 void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
863 struct ieee80211_rx_status *rx_status);
864 int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
865 int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
866 int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
867 int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
868 void ieee80211_sta_req_auth(struct net_device *dev,
869 struct ieee80211_if_sta *ifsta);
870 int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
871 ieee80211_rx_result ieee80211_sta_rx_scan(
872 struct net_device *dev, struct sk_buff *skb,
873 struct ieee80211_rx_status *rx_status);
874 void ieee80211_rx_bss_list_init(struct net_device *dev);
875 void ieee80211_rx_bss_list_deinit(struct net_device *dev);
876 int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
877 struct sta_info *ieee80211_ibss_add_sta(struct net_device *dev,
878 struct sk_buff *skb, u8 *bssid,
880 int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
881 int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
882 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
884 void ieee80211_reset_erp_info(struct net_device *dev);
885 int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
886 struct ieee80211_ht_info *ht_info);
887 int ieee80211_ht_addt_info_ie_to_ht_bss_info(
888 struct ieee80211_ht_addt_info *ht_add_info_ie,
889 struct ieee80211_ht_bss_info *bss_info);
890 void ieee80211_send_addba_request(struct net_device *dev, const u8 *da,
891 u16 tid, u8 dialog_token, u16 start_seq_num,
892 u16 agg_size, u16 timeout);
893 void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid,
894 u16 initiator, u16 reason_code);
896 void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *da,
897 u16 tid, u16 initiator, u16 reason);
898 void sta_addba_resp_timer_expired(unsigned long data);
899 void ieee80211_sta_tear_down_BA_sessions(struct net_device *dev, u8 *addr);
900 u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
901 struct ieee802_11_elems *elems,
902 enum ieee80211_band band);
903 void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb,
905 void ieee802_11_parse_elems(u8 *start, size_t len,
906 struct ieee802_11_elems *elems);
908 #ifdef CONFIG_MAC80211_MESH
909 void ieee80211_start_mesh(struct net_device *dev);
911 static inline void ieee80211_start_mesh(struct net_device *dev)
915 /* ieee80211_iface.c */
916 int ieee80211_if_add(struct net_device *dev, const char *name,
917 struct net_device **new_dev, int type,
918 struct vif_params *params);
919 void ieee80211_if_set_type(struct net_device *dev, int type);
920 void ieee80211_if_reinit(struct net_device *dev);
921 void __ieee80211_if_del(struct ieee80211_local *local,
922 struct ieee80211_sub_if_data *sdata);
923 int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
924 void ieee80211_if_free(struct net_device *dev);
925 void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
928 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
929 void ieee80211_tx_pending(unsigned long data);
930 int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
931 int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
932 int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
934 /* utility functions/constants */
935 extern void *mac80211_wiphy_privid; /* for wiphy privid */
936 extern const unsigned char rfc1042_header[6];
937 extern const unsigned char bridge_tunnel_header[6];
938 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
939 enum ieee80211_if_types type);
940 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
941 int rate, int erp, int short_preamble);
942 void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
943 struct ieee80211_hdr *hdr);
945 #endif /* IEEE80211_I_H */