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>
31 /* ieee80211.o internal definitions, etc. These are not included into
32 * low-level drivers. */
35 #define ETH_P_PAE 0x888E /* Port Access Entity (IEEE 802.1X) */
36 #endif /* ETH_P_PAE */
38 #define WLAN_FC_DATA_PRESENT(fc) (((fc) & 0x4c) == 0x08)
40 #define IEEE80211_FC(type, subtype) cpu_to_le16(type | subtype)
42 struct ieee80211_local;
44 /* Maximum number of broadcast/multicast frames to buffer when some of the
45 * associated stations are using power saving. */
46 #define AP_MAX_BC_BUFFER 128
48 /* Maximum number of frames buffered to all STAs, including multicast frames.
49 * Note: increasing this limit increases the potential memory requirement. Each
50 * frame can be up to about 2 kB long. */
51 #define TOTAL_MAX_TX_BUFFER 512
53 /* Required encryption head and tailroom */
54 #define IEEE80211_ENCRYPT_HEADROOM 8
55 #define IEEE80211_ENCRYPT_TAILROOM 12
57 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
58 * reception of at least three fragmented frames. This limit can be increased
59 * by changing this define, at the cost of slower frame reassembly and
60 * increased memory use (about 2 kB of RAM per entry). */
61 #define IEEE80211_FRAGMENT_MAX 4
63 struct ieee80211_fragment_entry {
64 unsigned long first_frag_time;
66 unsigned int rx_queue;
67 unsigned int last_frag;
68 unsigned int extra_len;
69 struct sk_buff_head skb_list;
70 int ccmp; /* Whether fragments were encrypted with CCMP */
71 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
75 struct ieee80211_sta_bss {
76 struct list_head list;
77 struct ieee80211_sta_bss *hnext;
83 u8 ssid[IEEE80211_MAX_SSID_LEN];
84 u16 capability; /* host byte order */
85 enum ieee80211_band band;
87 int signal, noise, qual;
98 #ifdef CONFIG_MAC80211_MESH
103 #define IEEE80211_MAX_SUPP_RATES 32
104 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
105 size_t supp_rates_len;
110 unsigned long last_update;
112 /* during assocation, we save an ERP value from a probe response so
113 * that we can feed ERP info to the driver when handling the
114 * association completes. these fields probably won't be up-to-date
115 * otherwise, you probably don't want to use them. */
120 static inline u8 *bss_mesh_cfg(struct ieee80211_sta_bss *bss)
122 #ifdef CONFIG_MAC80211_MESH
123 return bss->mesh_cfg;
128 static inline u8 *bss_mesh_id(struct ieee80211_sta_bss *bss)
130 #ifdef CONFIG_MAC80211_MESH
136 static inline u8 bss_mesh_id_len(struct ieee80211_sta_bss *bss)
138 #ifdef CONFIG_MAC80211_MESH
139 return bss->mesh_id_len;
145 typedef unsigned __bitwise__ ieee80211_tx_result;
146 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
147 #define TX_DROP ((__force ieee80211_tx_result) 1u)
148 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
150 #define IEEE80211_TX_FRAGMENTED BIT(0)
151 #define IEEE80211_TX_UNICAST BIT(1)
152 #define IEEE80211_TX_PS_BUFFERED BIT(2)
153 #define IEEE80211_TX_PROBE_LAST_FRAG BIT(3)
155 struct ieee80211_tx_data {
157 struct net_device *dev;
158 struct ieee80211_local *local;
159 struct ieee80211_sub_if_data *sdata;
160 struct sta_info *sta;
161 struct ieee80211_key *key;
163 struct ieee80211_channel *channel;
165 /* use this rate (if set) for last fragment; rate can
166 * be set to lower rate for the first fragments, e.g.,
167 * when using CTS protection with IEEE 802.11g. */
168 s8 last_frag_rate_idx;
170 /* Extra fragments (in addition to the first fragment
172 struct sk_buff **extra_frag;
180 typedef unsigned __bitwise__ ieee80211_rx_result;
181 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
182 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
183 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
184 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
186 #define IEEE80211_RX_IN_SCAN BIT(0)
187 /* frame is destined to interface currently processed (incl. multicast frames) */
188 #define IEEE80211_RX_RA_MATCH BIT(1)
189 #define IEEE80211_RX_AMSDU BIT(2)
190 #define IEEE80211_RX_CMNTR_REPORTED BIT(3)
191 #define IEEE80211_RX_FRAGMENTED BIT(4)
193 struct ieee80211_rx_data {
195 struct net_device *dev;
196 struct ieee80211_local *local;
197 struct ieee80211_sub_if_data *sdata;
198 struct sta_info *sta;
199 struct ieee80211_key *key;
200 struct ieee80211_rx_status *status;
201 struct ieee80211_rate *rate;
205 int sent_ps_buffered;
211 struct ieee80211_tx_stored_packet {
213 struct sk_buff **extra_frag;
214 s8 last_frag_rate_idx;
216 bool last_frag_rate_ctrl_probe;
221 int head_len, tail_len;
225 struct ieee80211_if_ap {
226 struct beacon_data *beacon;
228 struct list_head vlans;
230 u8 ssid[IEEE80211_MAX_SSID_LEN];
233 /* yes, this looks ugly, but guarantees that we can later use
235 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
236 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
237 struct sk_buff_head ps_bc_buf;
238 atomic_t num_sta_ps; /* number of stations in PS mode */
240 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
241 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
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 ieee80211_sub_if_data *ap;
252 struct list_head list;
256 __u32 fwded_frames; /* Mesh forwarded frames */
257 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
258 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
259 atomic_t estab_plinks;
262 #define PREQ_Q_F_START 0x1
263 #define PREQ_Q_F_REFRESH 0x2
264 struct mesh_preq_queue {
265 struct list_head list;
272 /* Mesh plink management parameters */
273 u16 dot11MeshRetryTimeout;
274 u16 dot11MeshConfirmTimeout;
275 u16 dot11MeshHoldingTimeout;
276 u16 dot11MeshMaxPeerLinks;
277 u8 dot11MeshMaxRetries;
279 bool auto_open_plinks;
280 /* HWMP parameters */
281 u8 dot11MeshHWMPmaxPREQretries;
282 u32 path_refresh_time;
283 u16 min_discovery_timeout;
284 u32 dot11MeshHWMPactivePathTimeout;
285 u16 dot11MeshHWMPpreqMinInterval;
286 u16 dot11MeshHWMPnetDiameterTraversalTime;
290 /* flags used in struct ieee80211_if_sta.flags */
291 #define IEEE80211_STA_SSID_SET BIT(0)
292 #define IEEE80211_STA_BSSID_SET BIT(1)
293 #define IEEE80211_STA_PREV_BSSID_SET BIT(2)
294 #define IEEE80211_STA_AUTHENTICATED BIT(3)
295 #define IEEE80211_STA_ASSOCIATED BIT(4)
296 #define IEEE80211_STA_PROBEREQ_POLL BIT(5)
297 #define IEEE80211_STA_CREATE_IBSS BIT(6)
298 #define IEEE80211_STA_MIXED_CELL BIT(7)
299 #define IEEE80211_STA_WMM_ENABLED BIT(8)
300 #define IEEE80211_STA_AUTO_SSID_SEL BIT(10)
301 #define IEEE80211_STA_AUTO_BSSID_SEL BIT(11)
302 #define IEEE80211_STA_AUTO_CHANNEL_SEL BIT(12)
303 #define IEEE80211_STA_PRIVACY_INVOKED BIT(13)
304 struct ieee80211_if_sta {
305 struct timer_list timer;
306 struct work_struct work;
307 u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
308 u8 ssid[IEEE80211_MAX_SSID_LEN];
310 IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
311 IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
312 IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED,
316 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
317 size_t scan_ssid_len;
318 #ifdef CONFIG_MAC80211_MESH
319 struct timer_list mesh_path_timer;
320 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
322 /* Active Path Selection Protocol Identifier */
324 /* Active Path Selection Metric Identifier */
326 /* Congestion Control Mode Identifier */
328 /* Local mesh Destination Sequence Number */
330 /* Last used PREQ ID */
333 /* Timestamp of last DSN update */
334 unsigned long last_dsn_update;
335 /* Timestamp of last DSN sent */
336 unsigned long last_preq;
337 struct mesh_rmc *rmc;
338 spinlock_t mesh_preq_queue_lock;
339 struct mesh_preq_queue preq_queue;
341 struct mesh_stats mshstats;
342 struct mesh_config mshcfg;
344 bool accepting_plinks;
348 u8 *extra_ie; /* to be added to the end of AssocReq */
351 /* The last AssocReq/Resp IEs */
352 u8 *assocreq_ies, *assocresp_ies;
353 size_t assocreq_ies_len, assocresp_ies_len;
355 struct sk_buff_head skb_queue;
357 int auth_tries, assoc_tries;
359 unsigned long request;
361 unsigned long last_probe;
364 #define IEEE80211_STA_REQ_SCAN 0
365 #define IEEE80211_STA_REQ_AUTH 1
366 #define IEEE80211_STA_REQ_RUN 2
368 #define IEEE80211_AUTH_ALG_OPEN BIT(0)
369 #define IEEE80211_AUTH_ALG_SHARED_KEY BIT(1)
370 #define IEEE80211_AUTH_ALG_LEAP BIT(2)
371 unsigned int auth_algs; /* bitfield of allowed auth algs */
372 int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
373 int auth_transaction;
375 unsigned long ibss_join_req;
376 struct sk_buff *probe_resp; /* ProbeResp template for IBSS */
377 u32 supp_rates_bits[IEEE80211_NUM_BANDS];
379 int wmm_last_param_set;
380 int num_beacons; /* number of TXed beacon frames by this STA */
383 static inline void ieee80211_if_sta_set_mesh_id(struct ieee80211_if_sta *ifsta,
384 u8 mesh_id_len, u8 *mesh_id)
386 #ifdef CONFIG_MAC80211_MESH
387 ifsta->mesh_id_len = mesh_id_len;
388 memcpy(ifsta->mesh_id, mesh_id, mesh_id_len);
392 #ifdef CONFIG_MAC80211_MESH
393 #define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
394 do { (sta)->mshstats.name++; } while (0)
396 #define IEEE80211_IFSTA_MESH_CTR_INC(sta, name) \
400 /* flags used in struct ieee80211_sub_if_data.flags */
401 #define IEEE80211_SDATA_ALLMULTI BIT(0)
402 #define IEEE80211_SDATA_PROMISC BIT(1)
403 #define IEEE80211_SDATA_USERSPACE_MLME BIT(2)
404 #define IEEE80211_SDATA_OPERATING_GMODE BIT(3)
405 struct ieee80211_sub_if_data {
406 struct list_head list;
408 struct wireless_dev wdev;
411 struct list_head key_list;
413 struct net_device *dev;
414 struct ieee80211_local *local;
418 int drop_unencrypted;
421 * basic rates of this AP or the AP we're associated to
427 /* Fragment table for host-based reassembly */
428 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
429 unsigned int fragment_next;
431 #define NUM_DEFAULT_KEYS 4
432 struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
433 struct ieee80211_key *default_key;
436 * BSS configuration for this interface.
438 * FIXME: I feel bad putting this here when we already have a
439 * bss pointer, but the bss pointer is just wrong when
440 * you have multiple virtual STA mode interfaces...
441 * This needs to be fixed.
443 struct ieee80211_bss_conf bss_conf;
444 struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
447 struct ieee80211_if_ap ap;
448 struct ieee80211_if_wds wds;
449 struct ieee80211_if_vlan vlan;
450 struct ieee80211_if_sta sta;
454 #ifdef CONFIG_MAC80211_DEBUGFS
455 struct dentry *debugfsdir;
458 struct dentry *drop_unencrypted;
459 struct dentry *state;
460 struct dentry *bssid;
461 struct dentry *prev_bssid;
462 struct dentry *ssid_len;
464 struct dentry *ap_capab;
465 struct dentry *capab;
466 struct dentry *extra_ie_len;
467 struct dentry *auth_tries;
468 struct dentry *assoc_tries;
469 struct dentry *auth_algs;
470 struct dentry *auth_alg;
471 struct dentry *auth_transaction;
472 struct dentry *flags;
473 struct dentry *num_beacons_sta;
476 struct dentry *drop_unencrypted;
477 struct dentry *num_sta_ps;
478 struct dentry *dtim_count;
479 struct dentry *num_beacons;
480 struct dentry *force_unicast_rateidx;
481 struct dentry *max_ratectrl_rateidx;
482 struct dentry *num_buffered_multicast;
485 struct dentry *drop_unencrypted;
489 struct dentry *drop_unencrypted;
494 struct dentry *default_key;
497 #ifdef CONFIG_MAC80211_MESH
498 struct dentry *mesh_stats_dir;
500 struct dentry *fwded_frames;
501 struct dentry *dropped_frames_ttl;
502 struct dentry *dropped_frames_no_route;
503 struct dentry *estab_plinks;
504 struct timer_list mesh_path_timer;
507 struct dentry *mesh_config_dir;
509 struct dentry *dot11MeshRetryTimeout;
510 struct dentry *dot11MeshConfirmTimeout;
511 struct dentry *dot11MeshHoldingTimeout;
512 struct dentry *dot11MeshMaxRetries;
513 struct dentry *dot11MeshTTL;
514 struct dentry *auto_open_plinks;
515 struct dentry *dot11MeshMaxPeerLinks;
516 struct dentry *dot11MeshHWMPactivePathTimeout;
517 struct dentry *dot11MeshHWMPpreqMinInterval;
518 struct dentry *dot11MeshHWMPnetDiameterTraversalTime;
519 struct dentry *dot11MeshHWMPmaxPREQretries;
520 struct dentry *path_refresh_time;
521 struct dentry *min_discovery_timeout;
526 /* must be last, dynamically sized area in this! */
527 struct ieee80211_vif vif;
531 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
533 return container_of(p, struct ieee80211_sub_if_data, vif);
536 #define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
539 IEEE80211_RX_MSG = 1,
540 IEEE80211_TX_STATUS_MSG = 2,
541 IEEE80211_DELBA_MSG = 3,
542 IEEE80211_ADDBA_MSG = 4,
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 struct net_device *mdev; /* wmaster# - "master" 802.11 device */
555 int monitors, cooked_mntrs;
556 /* number of interfaces with corresponding FIF_ flags */
557 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss;
558 unsigned int filter_flags; /* FIF_* */
559 struct iw_statistics wstats;
561 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
562 int tx_headroom; /* required headroom for hardware/radiotap */
565 IEEE80211_DEV_UNINITIALIZED = 0,
566 IEEE80211_DEV_REGISTERED,
567 IEEE80211_DEV_UNREGISTERED,
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 struct ieee80211_tx_stored_packet pending_packet[IEEE80211_MAX_QUEUES];
595 struct tasklet_struct tx_pending_tasklet;
597 /* number of interfaces with corresponding IFF_ flags */
598 atomic_t iff_allmultis, iff_promiscs;
600 struct rate_control_ref *rate_ctrl;
603 int fragmentation_threshold;
604 int short_retry_limit; /* dot11ShortRetryLimit */
605 int long_retry_limit; /* dot11LongRetryLimit */
607 struct crypto_blkcipher *wep_tx_tfm;
608 struct crypto_blkcipher *wep_rx_tfm;
611 int bridge_packets; /* bridge packets between associated stations and
612 * deliver multicast frames both back to wireless
613 * media and to the local net stack */
615 struct list_head interfaces;
618 * Key lock, protects sdata's key_list and sta_info's
619 * key pointers (write access, they're RCU.)
624 bool sta_sw_scanning;
625 bool sta_hw_scanning;
626 int scan_channel_idx;
627 enum ieee80211_band scan_band;
629 enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
630 unsigned long last_scan_completed;
631 struct delayed_work scan_work;
632 struct net_device *scan_dev;
633 struct ieee80211_channel *oper_channel, *scan_channel;
634 u8 scan_ssid[IEEE80211_MAX_SSID_LEN];
635 size_t scan_ssid_len;
636 struct list_head sta_bss_list;
637 struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
638 spinlock_t sta_bss_lock;
641 /* dot11CountersTable */
642 u32 dot11TransmittedFragmentCount;
643 u32 dot11MulticastTransmittedFrameCount;
644 u32 dot11FailedCount;
646 u32 dot11MultipleRetryCount;
647 u32 dot11FrameDuplicateCount;
648 u32 dot11ReceivedFragmentCount;
649 u32 dot11MulticastReceivedFrameCount;
650 u32 dot11TransmittedFrameCount;
651 u32 dot11WEPUndecryptableCount;
653 #ifdef CONFIG_MAC80211_LEDS
654 int tx_led_counter, rx_led_counter;
655 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
656 char tx_led_name[32], rx_led_name[32],
657 assoc_led_name[32], radio_led_name[32];
660 #ifdef CONFIG_MAC80211_DEBUGFS
661 struct work_struct sta_debugfs_add;
664 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
665 /* TX/RX handler statistics */
666 unsigned int tx_handlers_drop;
667 unsigned int tx_handlers_queued;
668 unsigned int tx_handlers_drop_unencrypted;
669 unsigned int tx_handlers_drop_fragment;
670 unsigned int tx_handlers_drop_wep;
671 unsigned int tx_handlers_drop_not_assoc;
672 unsigned int tx_handlers_drop_unauth_port;
673 unsigned int rx_handlers_drop;
674 unsigned int rx_handlers_queued;
675 unsigned int rx_handlers_drop_nullfunc;
676 unsigned int rx_handlers_drop_defrag;
677 unsigned int rx_handlers_drop_short;
678 unsigned int rx_handlers_drop_passive_scan;
679 unsigned int tx_expand_skb_head;
680 unsigned int tx_expand_skb_head_cloned;
681 unsigned int rx_expand_skb_head;
682 unsigned int rx_expand_skb_head2;
683 unsigned int rx_handlers_fragments;
684 unsigned int tx_status_drop;
685 #define I802_DEBUG_INC(c) (c)++
686 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
687 #define I802_DEBUG_INC(c) do { } while (0)
688 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
691 int total_ps_buffered; /* total number of all buffered unicast and
692 * multicast packets for power saving stations
694 int wifi_wme_noack_test;
695 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
697 #ifdef CONFIG_MAC80211_DEBUGFS
698 struct local_debugfsdentries {
699 struct dentry *frequency;
700 struct dentry *antenna_sel_tx;
701 struct dentry *antenna_sel_rx;
702 struct dentry *bridge_packets;
703 struct dentry *rts_threshold;
704 struct dentry *fragmentation_threshold;
705 struct dentry *short_retry_limit;
706 struct dentry *long_retry_limit;
707 struct dentry *total_ps_buffered;
708 struct dentry *wep_iv;
709 struct dentry *statistics;
710 struct local_debugfsdentries_statsdentries {
711 struct dentry *transmitted_fragment_count;
712 struct dentry *multicast_transmitted_frame_count;
713 struct dentry *failed_count;
714 struct dentry *retry_count;
715 struct dentry *multiple_retry_count;
716 struct dentry *frame_duplicate_count;
717 struct dentry *received_fragment_count;
718 struct dentry *multicast_received_frame_count;
719 struct dentry *transmitted_frame_count;
720 struct dentry *wep_undecryptable_count;
721 struct dentry *num_scans;
722 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
723 struct dentry *tx_handlers_drop;
724 struct dentry *tx_handlers_queued;
725 struct dentry *tx_handlers_drop_unencrypted;
726 struct dentry *tx_handlers_drop_fragment;
727 struct dentry *tx_handlers_drop_wep;
728 struct dentry *tx_handlers_drop_not_assoc;
729 struct dentry *tx_handlers_drop_unauth_port;
730 struct dentry *rx_handlers_drop;
731 struct dentry *rx_handlers_queued;
732 struct dentry *rx_handlers_drop_nullfunc;
733 struct dentry *rx_handlers_drop_defrag;
734 struct dentry *rx_handlers_drop_short;
735 struct dentry *rx_handlers_drop_passive_scan;
736 struct dentry *tx_expand_skb_head;
737 struct dentry *tx_expand_skb_head_cloned;
738 struct dentry *rx_expand_skb_head;
739 struct dentry *rx_expand_skb_head2;
740 struct dentry *rx_handlers_fragments;
741 struct dentry *tx_status_drop;
743 struct dentry *dot11ACKFailureCount;
744 struct dentry *dot11RTSFailureCount;
745 struct dentry *dot11FCSErrorCount;
746 struct dentry *dot11RTSSuccessCount;
748 struct dentry *stations;
754 static inline int ieee80211_is_multiqueue(struct ieee80211_local *local)
756 #ifdef CONFIG_MAC80211_QOS
757 return netif_is_multiqueue(local->mdev);
763 /* this struct represents 802.11n's RA/TID combination */
764 struct ieee80211_ra_tid {
769 /* Parsed Information Elements */
770 struct ieee802_11_elems {
771 /* pointers to IEs */
795 /* length of them, respectively */
807 u8 ext_supp_rates_len;
820 static inline struct ieee80211_local *hw_to_local(
821 struct ieee80211_hw *hw)
823 return container_of(hw, struct ieee80211_local, hw);
826 static inline struct ieee80211_hw *local_to_hw(
827 struct ieee80211_local *local)
832 struct sta_attribute {
833 struct attribute attr;
834 ssize_t (*show)(const struct sta_info *, char *buf);
835 ssize_t (*store)(struct sta_info *, const char *buf, size_t count);
838 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
840 return compare_ether_addr(raddr, addr) == 0 ||
841 is_broadcast_ether_addr(raddr);
846 int ieee80211_hw_config(struct ieee80211_local *local);
847 int ieee80211_if_config(struct net_device *dev);
848 int ieee80211_if_config_beacon(struct net_device *dev);
849 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
850 void ieee80211_if_setup(struct net_device *dev);
851 u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht,
852 struct ieee80211_ht_info *req_ht_cap,
853 struct ieee80211_ht_bss_info *req_bss_cap);
855 /* ieee80211_ioctl.c */
856 extern const struct iw_handler_def ieee80211_iw_handler_def;
857 int ieee80211_set_freq(struct net_device *dev, int freq);
859 /* ieee80211_sta.c */
860 void ieee80211_sta_timer(unsigned long data);
861 void ieee80211_sta_work(struct work_struct *work);
862 void ieee80211_sta_scan_work(struct work_struct *work);
863 void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
864 struct ieee80211_rx_status *rx_status);
865 int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len);
866 int ieee80211_sta_get_ssid(struct net_device *dev, char *ssid, size_t *len);
867 int ieee80211_sta_set_bssid(struct net_device *dev, u8 *bssid);
868 int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
869 void ieee80211_sta_req_auth(struct net_device *dev,
870 struct ieee80211_if_sta *ifsta);
871 int ieee80211_sta_scan_results(struct net_device *dev,
872 struct iw_request_info *info,
873 char *buf, size_t len);
874 ieee80211_rx_result ieee80211_sta_rx_scan(
875 struct net_device *dev, struct sk_buff *skb,
876 struct ieee80211_rx_status *rx_status);
877 void ieee80211_rx_bss_list_init(struct net_device *dev);
878 void ieee80211_rx_bss_list_deinit(struct net_device *dev);
879 int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
880 struct sta_info *ieee80211_ibss_add_sta(struct net_device *dev,
881 struct sk_buff *skb, u8 *bssid,
882 u8 *addr, u64 supp_rates);
883 int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
884 int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
885 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
887 void ieee80211_reset_erp_info(struct net_device *dev);
888 int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
889 struct ieee80211_ht_info *ht_info);
890 int ieee80211_ht_addt_info_ie_to_ht_bss_info(
891 struct ieee80211_ht_addt_info *ht_add_info_ie,
892 struct ieee80211_ht_bss_info *bss_info);
893 void ieee80211_send_addba_request(struct net_device *dev, const u8 *da,
894 u16 tid, u8 dialog_token, u16 start_seq_num,
895 u16 agg_size, u16 timeout);
896 void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid,
897 u16 initiator, u16 reason_code);
899 void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *da,
900 u16 tid, u16 initiator, u16 reason);
901 void sta_addba_resp_timer_expired(unsigned long data);
902 void ieee80211_sta_tear_down_BA_sessions(struct net_device *dev, u8 *addr);
903 u64 ieee80211_sta_get_rates(struct ieee80211_local *local,
904 struct ieee802_11_elems *elems,
905 enum ieee80211_band band);
906 void ieee80211_sta_tx(struct net_device *dev, struct sk_buff *skb,
908 void ieee802_11_parse_elems(u8 *start, size_t len,
909 struct ieee802_11_elems *elems);
911 #ifdef CONFIG_MAC80211_MESH
912 void ieee80211_start_mesh(struct net_device *dev);
914 static inline void ieee80211_start_mesh(struct net_device *dev)
918 /* ieee80211_iface.c */
919 int ieee80211_if_add(struct net_device *dev, const char *name,
920 struct net_device **new_dev, int type,
921 struct vif_params *params);
922 void ieee80211_if_set_type(struct net_device *dev, int type);
923 void ieee80211_if_reinit(struct net_device *dev);
924 void __ieee80211_if_del(struct ieee80211_local *local,
925 struct ieee80211_sub_if_data *sdata);
926 int ieee80211_if_remove(struct net_device *dev, const char *name, int id);
927 void ieee80211_if_free(struct net_device *dev);
928 void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata);
931 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
932 void ieee80211_tx_pending(unsigned long data);
933 int ieee80211_master_start_xmit(struct sk_buff *skb, struct net_device *dev);
934 int ieee80211_monitor_start_xmit(struct sk_buff *skb, struct net_device *dev);
935 int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
937 /* utility functions/constants */
938 extern void *mac80211_wiphy_privid; /* for wiphy privid */
939 extern const unsigned char rfc1042_header[6];
940 extern const unsigned char bridge_tunnel_header[6];
941 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
942 enum ieee80211_if_types type);
943 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
944 int rate, int erp, int short_preamble);
945 void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
946 struct ieee80211_hdr *hdr);
948 #endif /* IEEE80211_I_H */