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/cfg80211.h>
27 #include <net/mac80211.h>
31 struct ieee80211_local;
33 /* Maximum number of broadcast/multicast frames to buffer when some of the
34 * associated stations are using power saving. */
35 #define AP_MAX_BC_BUFFER 128
37 /* Maximum number of frames buffered to all STAs, including multicast frames.
38 * Note: increasing this limit increases the potential memory requirement. Each
39 * frame can be up to about 2 kB long. */
40 #define TOTAL_MAX_TX_BUFFER 512
42 /* Required encryption head and tailroom */
43 #define IEEE80211_ENCRYPT_HEADROOM 8
44 #define IEEE80211_ENCRYPT_TAILROOM 18
46 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
47 * reception of at least three fragmented frames. This limit can be increased
48 * by changing this define, at the cost of slower frame reassembly and
49 * increased memory use (about 2 kB of RAM per entry). */
50 #define IEEE80211_FRAGMENT_MAX 4
53 * Time after which we ignore scan results and no longer report/use
56 #define IEEE80211_SCAN_RESULT_EXPIRE (10 * HZ)
58 #define TU_TO_EXP_TIME(x) (jiffies + usecs_to_jiffies((x) * 1024))
60 struct ieee80211_fragment_entry {
61 unsigned long first_frag_time;
63 unsigned int rx_queue;
64 unsigned int last_frag;
65 unsigned int extra_len;
66 struct sk_buff_head skb_list;
67 int ccmp; /* Whether fragments were encrypted with CCMP */
68 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
72 struct ieee80211_bss {
73 /* Yes, this is a hack */
74 struct cfg80211_bss cbss;
76 /* don't want to look up all the time */
78 u8 ssid[IEEE80211_MAX_SSID_LEN];
84 unsigned long last_probe_resp;
86 #ifdef CONFIG_MAC80211_MESH
92 #define IEEE80211_MAX_SUPP_RATES 32
93 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
94 size_t supp_rates_len;
97 * During assocation, we save an ERP value from a probe response so
98 * that we can feed ERP info to the driver when handling the
99 * association completes. these fields probably won't be up-to-date
100 * otherwise, you probably don't want to use them.
106 static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
108 #ifdef CONFIG_MAC80211_MESH
109 return bss->mesh_cfg;
114 static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
116 #ifdef CONFIG_MAC80211_MESH
122 static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
124 #ifdef CONFIG_MAC80211_MESH
125 return bss->mesh_id_len;
131 typedef unsigned __bitwise__ ieee80211_tx_result;
132 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
133 #define TX_DROP ((__force ieee80211_tx_result) 1u)
134 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
136 #define IEEE80211_TX_FRAGMENTED BIT(0)
137 #define IEEE80211_TX_UNICAST BIT(1)
138 #define IEEE80211_TX_PS_BUFFERED BIT(2)
140 struct ieee80211_tx_data {
142 struct net_device *dev;
143 struct ieee80211_local *local;
144 struct ieee80211_sub_if_data *sdata;
145 struct sta_info *sta;
146 struct ieee80211_key *key;
148 struct ieee80211_channel *channel;
155 typedef unsigned __bitwise__ ieee80211_rx_result;
156 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
157 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
158 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
159 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
161 #define IEEE80211_RX_IN_SCAN BIT(0)
162 /* frame is destined to interface currently processed (incl. multicast frames) */
163 #define IEEE80211_RX_RA_MATCH BIT(1)
164 #define IEEE80211_RX_AMSDU BIT(2)
165 #define IEEE80211_RX_CMNTR_REPORTED BIT(3)
166 #define IEEE80211_RX_FRAGMENTED BIT(4)
168 struct ieee80211_rx_data {
170 struct net_device *dev;
171 struct ieee80211_local *local;
172 struct ieee80211_sub_if_data *sdata;
173 struct sta_info *sta;
174 struct ieee80211_key *key;
175 struct ieee80211_rx_status *status;
176 struct ieee80211_rate *rate;
179 int sent_ps_buffered;
187 int head_len, tail_len;
191 struct ieee80211_if_ap {
192 struct beacon_data *beacon;
194 struct list_head vlans;
196 /* yes, this looks ugly, but guarantees that we can later use
198 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
199 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
200 struct sk_buff_head ps_bc_buf;
201 atomic_t num_sta_ps; /* number of stations in PS mode */
205 struct ieee80211_if_wds {
206 struct sta_info *sta;
207 u8 remote_addr[ETH_ALEN];
210 struct ieee80211_if_vlan {
211 struct list_head list;
215 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
216 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
217 __u32 fwded_frames; /* Mesh total forwarded frames */
218 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
219 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
220 atomic_t estab_plinks;
223 #define PREQ_Q_F_START 0x1
224 #define PREQ_Q_F_REFRESH 0x2
225 struct mesh_preq_queue {
226 struct list_head list;
231 enum ieee80211_mgd_state {
232 IEEE80211_MGD_STATE_IDLE,
233 IEEE80211_MGD_STATE_PROBE,
234 IEEE80211_MGD_STATE_AUTH,
235 IEEE80211_MGD_STATE_ASSOC,
238 struct ieee80211_mgd_work {
239 struct list_head list;
240 struct ieee80211_bss *bss;
242 u8 prev_bssid[ETH_ALEN];
243 u8 ssid[IEEE80211_MAX_SSID_LEN];
245 unsigned long timeout;
246 enum ieee80211_mgd_state state;
247 u16 auth_alg, auth_transaction;
251 u8 key[WLAN_KEY_LEN_WEP104];
255 u8 ie[0]; /* for auth or assoc frame, not probe */
258 /* flags used in struct ieee80211_if_managed.flags */
259 enum ieee80211_sta_flags {
260 IEEE80211_STA_BEACON_POLL = BIT(0),
261 IEEE80211_STA_CONNECTION_POLL = BIT(1),
262 IEEE80211_STA_CONTROL_PORT = BIT(2),
263 IEEE80211_STA_WMM_ENABLED = BIT(3),
264 IEEE80211_STA_DISABLE_11N = BIT(4),
265 IEEE80211_STA_CSA_RECEIVED = BIT(5),
266 IEEE80211_STA_MFP_ENABLED = BIT(6),
269 /* flags for MLME request */
270 enum ieee80211_sta_request {
271 IEEE80211_STA_REQ_SCAN,
274 struct ieee80211_if_managed {
275 struct timer_list timer;
276 struct timer_list conn_mon_timer;
277 struct timer_list bcn_mon_timer;
278 struct timer_list chswitch_timer;
279 struct work_struct work;
280 struct work_struct monitor_work;
281 struct work_struct chswitch_work;
282 struct work_struct beacon_loss_work;
284 unsigned long probe_timeout;
285 int probe_send_count;
288 struct ieee80211_bss *associated;
289 struct ieee80211_mgd_work *old_associate_work;
290 struct list_head work_list;
297 struct sk_buff_head skb_queue;
299 unsigned long timers_running; /* used for quiesce/restart */
300 bool powersave; /* powersave requested for this iface */
302 unsigned long request;
309 IEEE80211_MFP_DISABLED,
310 IEEE80211_MFP_OPTIONAL,
311 IEEE80211_MFP_REQUIRED
312 } mfp; /* management frame protection */
314 int wmm_last_param_set;
317 enum ieee80211_ibss_request {
318 IEEE80211_IBSS_REQ_RUN = 0,
321 struct ieee80211_if_ibss {
322 struct timer_list timer;
323 struct work_struct work;
325 struct sk_buff_head skb_queue;
327 unsigned long request;
328 unsigned long last_scan_completed;
337 u8 ssid[IEEE80211_MAX_SSID_LEN];
340 struct ieee80211_channel *channel;
342 unsigned long ibss_join_req;
343 /* probe response/beacon for IBSS */
344 struct sk_buff *presp, *skb;
347 IEEE80211_IBSS_MLME_SEARCH,
348 IEEE80211_IBSS_MLME_JOINED,
352 struct ieee80211_if_mesh {
353 struct work_struct work;
354 struct timer_list housekeeping_timer;
355 struct timer_list mesh_path_timer;
356 struct sk_buff_head skb_queue;
358 unsigned long timers_running;
360 unsigned long wrkq_flags;
362 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
364 /* Active Path Selection Protocol Identifier */
366 /* Active Path Selection Metric Identifier */
368 /* Congestion Control Mode Identifier */
370 /* Synchronization Protocol Identifier */
372 /* Authentication Protocol Identifier */
374 /* Local mesh Destination Sequence Number */
376 /* Last used PREQ ID */
379 /* Timestamp of last DSN update */
380 unsigned long last_dsn_update;
381 /* Timestamp of last DSN sent */
382 unsigned long last_preq;
383 struct mesh_rmc *rmc;
384 spinlock_t mesh_preq_queue_lock;
385 struct mesh_preq_queue preq_queue;
387 struct mesh_stats mshstats;
388 struct mesh_config mshcfg;
390 bool accepting_plinks;
393 #ifdef CONFIG_MAC80211_MESH
394 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
395 do { (msh)->mshstats.name++; } while (0)
397 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
402 * enum ieee80211_sub_if_data_flags - virtual interface flags
404 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
405 * @IEEE80211_SDATA_PROMISC: interface is promisc
406 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
407 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
408 * associated stations and deliver multicast frames both
409 * back to wireless media and to the local net stack.
411 enum ieee80211_sub_if_data_flags {
412 IEEE80211_SDATA_ALLMULTI = BIT(0),
413 IEEE80211_SDATA_PROMISC = BIT(1),
414 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
415 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
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;
434 * keep track of whether the HT opmode (stored in
435 * vif.bss_info.ht_operation_mode) is valid.
437 bool ht_opmode_valid;
439 /* Fragment table for host-based reassembly */
440 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
441 unsigned int fragment_next;
443 #define NUM_DEFAULT_KEYS 4
444 #define NUM_DEFAULT_MGMT_KEYS 2
445 struct ieee80211_key *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
446 struct ieee80211_key *default_key;
447 struct ieee80211_key *default_mgmt_key;
452 * AP this belongs to: self in AP mode and
453 * corresponding AP in VLAN mode, NULL for
454 * all others (might be needed later in IBSS)
456 struct ieee80211_if_ap *bss;
458 int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
459 int max_ratectrl_rateidx; /* max TX rateidx for rate control */
462 struct ieee80211_if_ap ap;
463 struct ieee80211_if_wds wds;
464 struct ieee80211_if_vlan vlan;
465 struct ieee80211_if_managed mgd;
466 struct ieee80211_if_ibss ibss;
467 #ifdef CONFIG_MAC80211_MESH
468 struct ieee80211_if_mesh mesh;
473 #ifdef CONFIG_MAC80211_DEBUGFS
476 struct dentry *default_key;
477 struct dentry *default_mgmt_key;
480 /* must be last, dynamically sized area in this! */
481 struct ieee80211_vif vif;
485 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
487 return container_of(p, struct ieee80211_sub_if_data, vif);
491 ieee80211_sdata_set_mesh_id(struct ieee80211_sub_if_data *sdata,
492 u8 mesh_id_len, u8 *mesh_id)
494 #ifdef CONFIG_MAC80211_MESH
495 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
496 ifmsh->mesh_id_len = mesh_id_len;
497 memcpy(ifmsh->mesh_id, mesh_id, mesh_id_len);
504 IEEE80211_RX_MSG = 1,
505 IEEE80211_TX_STATUS_MSG = 2,
506 IEEE80211_DELBA_MSG = 3,
507 IEEE80211_ADDBA_MSG = 4,
510 enum queue_stop_reason {
511 IEEE80211_QUEUE_STOP_REASON_DRIVER,
512 IEEE80211_QUEUE_STOP_REASON_PS,
513 IEEE80211_QUEUE_STOP_REASON_CSA,
514 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
515 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
516 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
520 * mac80211 scan flags - currently active scan mode
522 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
523 * well be on the operating channel
524 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
525 * determine if we are on the operating channel or not
526 * @SCAN_OFF_CHANNEL: We're off our operating channel for scanning,
527 * gets only set in conjunction with SCAN_SW_SCANNING
536 * enum mac80211_scan_state - scan state machine states
538 * @SCAN_DECISION: Main entry point to the scan state machine, this state
539 * determines if we should keep on scanning or switch back to the
541 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
542 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
543 * @SCAN_LEAVE_OPER_CHANNEL: Leave the operating channel, notify the AP
544 * about us leaving the channel and stop all associated STA interfaces
545 * @SCAN_ENTER_OPER_CHANNEL: Enter the operating channel again, notify the
546 * AP about us being back and restart all associated STA interfaces
548 enum mac80211_scan_state {
552 SCAN_LEAVE_OPER_CHANNEL,
553 SCAN_ENTER_OPER_CHANNEL,
556 struct ieee80211_local {
557 /* embed the driver visible part.
558 * don't cast (use the static inlines below), but we keep
559 * it first anyway so they become a no-op */
560 struct ieee80211_hw hw;
562 const struct ieee80211_ops *ops;
565 * private workqueue to mac80211. mac80211 makes this accessible
566 * via ieee80211_queue_work()
568 struct workqueue_struct *workqueue;
570 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
571 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
572 spinlock_t queue_stop_reason_lock;
575 int monitors, cooked_mntrs;
576 /* number of interfaces with corresponding FIF_ flags */
577 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll;
578 unsigned int filter_flags; /* FIF_* */
579 struct iw_statistics wstats;
581 /* protects the aggregated multicast list and filter calls */
582 spinlock_t filter_lock;
584 /* used for uploading changed mc list */
585 struct work_struct reconfig_filter;
587 /* aggregated multicast list */
588 struct dev_addr_list *mc_list;
591 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
594 * suspended is true if we finished all the suspend _and_ we have
595 * not yet come up from resume. This is to be used by mac80211
596 * to ensure driver sanity during suspend and mac80211's own
597 * sanity. It can eventually be used for WoW as well.
602 * quiescing is true during the suspend process _only_ to
603 * ease timer cancelling etc.
607 /* device is started */
610 int tx_headroom; /* required headroom for hardware/radiotap */
612 /* Tasklet and skb queue to process calls from IRQ mode. All frames
613 * added to skb_queue will be processed, but frames in
614 * skb_queue_unreliable may be dropped if the total length of these
615 * queues increases over the limit. */
616 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
617 struct tasklet_struct tasklet;
618 struct sk_buff_head skb_queue;
619 struct sk_buff_head skb_queue_unreliable;
623 * The lock only protects the list, hash, timer and counter
624 * against manipulation, reads are done in RCU. Additionally,
625 * the lock protects each BSS's TIM bitmap.
628 unsigned long num_sta;
629 struct list_head sta_list;
630 struct sta_info *sta_hash[STA_HASH_SIZE];
631 struct timer_list sta_cleanup;
634 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
635 struct tasklet_struct tx_pending_tasklet;
638 * This lock is used to prevent concurrent A-MPDU
639 * session start/stop processing, this thus also
640 * synchronises the ->ampdu_action() callback to
641 * drivers and limits it to one at a time.
643 spinlock_t ampdu_lock;
645 /* number of interfaces with corresponding IFF_ flags */
646 atomic_t iff_allmultis, iff_promiscs;
648 struct rate_control_ref *rate_ctrl;
650 struct crypto_blkcipher *wep_tx_tfm;
651 struct crypto_blkcipher *wep_rx_tfm;
655 struct list_head interfaces;
656 struct mutex iflist_mtx;
659 * Key lock, protects sdata's key_list and sta_info's
660 * key pointers (write access, they're RCU.)
665 /* Scanning and BSS list */
666 struct mutex scan_mtx;
667 unsigned long scanning;
668 struct cfg80211_ssid scan_ssid;
669 struct cfg80211_scan_request *int_scan_req;
670 struct cfg80211_scan_request *scan_req, *hw_scan_req;
671 struct ieee80211_channel *scan_channel;
672 enum ieee80211_band hw_scan_band;
673 int scan_channel_idx;
676 enum mac80211_scan_state next_scan_state;
677 struct delayed_work scan_work;
678 struct ieee80211_sub_if_data *scan_sdata;
679 enum nl80211_channel_type oper_channel_type;
680 struct ieee80211_channel *oper_channel, *csa_channel;
683 /* dot11CountersTable */
684 u32 dot11TransmittedFragmentCount;
685 u32 dot11MulticastTransmittedFrameCount;
686 u32 dot11FailedCount;
688 u32 dot11MultipleRetryCount;
689 u32 dot11FrameDuplicateCount;
690 u32 dot11ReceivedFragmentCount;
691 u32 dot11MulticastReceivedFrameCount;
692 u32 dot11TransmittedFrameCount;
694 #ifdef CONFIG_MAC80211_LEDS
695 int tx_led_counter, rx_led_counter;
696 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
697 char tx_led_name[32], rx_led_name[32],
698 assoc_led_name[32], radio_led_name[32];
701 #ifdef CONFIG_MAC80211_DEBUGFS
702 struct work_struct sta_debugfs_add;
705 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
706 /* TX/RX handler statistics */
707 unsigned int tx_handlers_drop;
708 unsigned int tx_handlers_queued;
709 unsigned int tx_handlers_drop_unencrypted;
710 unsigned int tx_handlers_drop_fragment;
711 unsigned int tx_handlers_drop_wep;
712 unsigned int tx_handlers_drop_not_assoc;
713 unsigned int tx_handlers_drop_unauth_port;
714 unsigned int rx_handlers_drop;
715 unsigned int rx_handlers_queued;
716 unsigned int rx_handlers_drop_nullfunc;
717 unsigned int rx_handlers_drop_defrag;
718 unsigned int rx_handlers_drop_short;
719 unsigned int rx_handlers_drop_passive_scan;
720 unsigned int tx_expand_skb_head;
721 unsigned int tx_expand_skb_head_cloned;
722 unsigned int rx_expand_skb_head;
723 unsigned int rx_expand_skb_head2;
724 unsigned int rx_handlers_fragments;
725 unsigned int tx_status_drop;
726 #define I802_DEBUG_INC(c) (c)++
727 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
728 #define I802_DEBUG_INC(c) do { } while (0)
729 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
732 int total_ps_buffered; /* total number of all buffered unicast and
733 * multicast packets for power saving stations
735 int wifi_wme_noack_test;
736 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
740 * PS can only be enabled when we have exactly one managed
741 * interface (and monitors) in PS, this then points there.
743 struct ieee80211_sub_if_data *ps_sdata;
744 struct work_struct dynamic_ps_enable_work;
745 struct work_struct dynamic_ps_disable_work;
746 struct timer_list dynamic_ps_timer;
747 struct notifier_block network_latency_notifier;
749 int user_power_level; /* in dBm */
750 int power_constr_level; /* in dBm */
752 struct work_struct restart_work;
754 #ifdef CONFIG_MAC80211_DEBUGFS
755 struct local_debugfsdentries {
756 struct dentry *rcdir;
757 struct dentry *stations;
763 static inline struct ieee80211_sub_if_data *
764 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
766 return netdev_priv(dev);
769 /* this struct represents 802.11n's RA/TID combination */
770 struct ieee80211_ra_tid {
775 /* Parsed Information Elements */
776 struct ieee802_11_elems {
780 /* pointers to IEs */
786 struct ieee80211_tim_ie *tim;
795 struct ieee80211_ht_cap *ht_cap_elem;
796 struct ieee80211_ht_info *ht_info_elem;
806 u8 *quiet_elem; /* first quite element */
809 /* length of them, respectively */
821 u8 ext_supp_rates_len;
830 u8 ch_switch_elem_len;
832 u8 pwr_constr_elem_len;
834 u8 num_of_quiet_elem; /* can be more the one */
838 static inline struct ieee80211_local *hw_to_local(
839 struct ieee80211_hw *hw)
841 return container_of(hw, struct ieee80211_local, hw);
844 static inline struct ieee80211_hw *local_to_hw(
845 struct ieee80211_local *local)
851 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
853 return compare_ether_addr(raddr, addr) == 0 ||
854 is_broadcast_ether_addr(raddr);
858 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
859 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
860 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
862 void ieee80211_configure_filter(struct ieee80211_local *local);
863 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
866 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
867 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
868 struct cfg80211_auth_request *req);
869 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
870 struct cfg80211_assoc_request *req);
871 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
872 struct cfg80211_deauth_request *req,
874 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
875 struct cfg80211_disassoc_request *req,
877 ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata,
878 struct sk_buff *skb);
879 void ieee80211_send_pspoll(struct ieee80211_local *local,
880 struct ieee80211_sub_if_data *sdata);
881 void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
882 int ieee80211_max_network_latency(struct notifier_block *nb,
883 unsigned long data, void *dummy);
884 void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
885 struct ieee80211_channel_sw_ie *sw_elem,
886 struct ieee80211_bss *bss);
887 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
888 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
891 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
892 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
894 ieee80211_ibss_rx_mgmt(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
895 struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
896 u8 *bssid, u8 *addr, u32 supp_rates);
897 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
898 struct cfg80211_ibss_params *params);
899 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
900 void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
901 void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
903 /* scan/BSS handling */
904 void ieee80211_scan_work(struct work_struct *work);
905 int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
906 const u8 *ssid, u8 ssid_len);
907 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
908 struct cfg80211_scan_request *req);
909 void ieee80211_scan_cancel(struct ieee80211_local *local);
911 ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
913 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
914 struct ieee80211_bss *
915 ieee80211_bss_info_update(struct ieee80211_local *local,
916 struct ieee80211_rx_status *rx_status,
917 struct ieee80211_mgmt *mgmt,
919 struct ieee802_11_elems *elems,
920 struct ieee80211_channel *channel,
922 struct ieee80211_bss *
923 ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
924 u8 *ssid, u8 ssid_len);
925 void ieee80211_rx_bss_put(struct ieee80211_local *local,
926 struct ieee80211_bss *bss);
928 /* interface handling */
929 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
930 struct net_device **new_dev, enum nl80211_iftype type,
931 struct vif_params *params);
932 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
933 enum nl80211_iftype type);
934 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
935 void ieee80211_remove_interfaces(struct ieee80211_local *local);
936 u32 __ieee80211_recalc_idle(struct ieee80211_local *local);
937 void ieee80211_recalc_idle(struct ieee80211_local *local);
940 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
941 void ieee80211_tx_pending(unsigned long data);
942 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
943 struct net_device *dev);
944 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
945 struct net_device *dev);
948 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band *sband,
949 struct ieee80211_ht_cap *ht_cap_ie,
950 struct ieee80211_sta_ht_cap *ht_cap);
951 void ieee80211_send_bar(struct ieee80211_sub_if_data *sdata, u8 *ra, u16 tid, u16 ssn);
952 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
953 const u8 *da, u16 tid,
954 u16 initiator, u16 reason_code);
956 void ieee80211_sta_stop_rx_ba_session(struct ieee80211_sub_if_data *sdata, u8 *da,
957 u16 tid, u16 initiator, u16 reason);
958 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
959 u16 initiator, u16 reason);
960 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta);
961 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
962 struct sta_info *sta,
963 struct ieee80211_mgmt *mgmt, size_t len);
964 void ieee80211_process_addba_resp(struct ieee80211_local *local,
965 struct sta_info *sta,
966 struct ieee80211_mgmt *mgmt,
968 void ieee80211_process_addba_request(struct ieee80211_local *local,
969 struct sta_info *sta,
970 struct ieee80211_mgmt *mgmt,
973 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
974 enum ieee80211_back_parties initiator);
976 /* Spectrum management */
977 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
978 struct ieee80211_mgmt *mgmt,
981 /* Suspend/resume and hw reconfiguration */
982 int ieee80211_reconfig(struct ieee80211_local *local);
983 void ieee80211_stop_device(struct ieee80211_local *local);
986 int __ieee80211_suspend(struct ieee80211_hw *hw);
988 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
990 return ieee80211_reconfig(hw_to_local(hw));
993 static inline int __ieee80211_suspend(struct ieee80211_hw *hw)
998 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1004 /* utility functions/constants */
1005 extern void *mac80211_wiphy_privid; /* for wiphy privid */
1006 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
1007 enum nl80211_iftype type);
1008 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
1009 int rate, int erp, int short_preamble);
1010 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
1011 struct ieee80211_hdr *hdr, const u8 *tsc,
1013 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata);
1014 void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
1016 void ieee802_11_parse_elems(u8 *start, size_t len,
1017 struct ieee802_11_elems *elems);
1018 u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
1019 struct ieee802_11_elems *elems,
1020 u64 filter, u32 crc);
1021 u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
1022 enum ieee80211_band band);
1024 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1025 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1026 void ieee80211_dynamic_ps_timer(unsigned long data);
1027 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1028 struct ieee80211_sub_if_data *sdata,
1030 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1031 struct ieee80211_hdr *hdr);
1032 void ieee80211_beacon_loss_work(struct work_struct *work);
1034 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1035 enum queue_stop_reason reason);
1036 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1037 enum queue_stop_reason reason);
1038 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1039 enum queue_stop_reason reason);
1040 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1041 enum queue_stop_reason reason);
1042 void ieee80211_add_pending_skb(struct ieee80211_local *local,
1043 struct sk_buff *skb);
1044 int ieee80211_add_pending_skbs(struct ieee80211_local *local,
1045 struct sk_buff_head *skbs);
1047 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1048 u16 transaction, u16 auth_alg,
1049 u8 *extra, size_t extra_len, const u8 *bssid,
1050 const u8 *key, u8 key_len, u8 key_idx);
1051 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1052 const u8 *ie, size_t ie_len,
1053 enum ieee80211_band band);
1054 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
1055 const u8 *ssid, size_t ssid_len,
1056 const u8 *ie, size_t ie_len);
1058 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1059 const size_t supp_rates_len,
1060 const u8 *supp_rates);
1061 u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1062 struct ieee802_11_elems *elems,
1063 enum ieee80211_band band);
1065 #ifdef CONFIG_MAC80211_NOINLINE
1066 #define debug_noinline noinline
1068 #define debug_noinline
1071 #endif /* IEEE80211_I_H */