2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005, Devicescape Software, Inc.
4 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
5 * Copyright 2007-2010 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 <linux/leds.h>
27 #include <linux/idr.h>
28 #include <net/ieee80211_radiotap.h>
29 #include <net/cfg80211.h>
30 #include <net/mac80211.h>
34 struct ieee80211_local;
36 /* Maximum number of broadcast/multicast frames to buffer when some of the
37 * associated stations are using power saving. */
38 #define AP_MAX_BC_BUFFER 128
40 /* Maximum number of frames buffered to all STAs, including multicast frames.
41 * Note: increasing this limit increases the potential memory requirement. Each
42 * frame can be up to about 2 kB long. */
43 #define TOTAL_MAX_TX_BUFFER 512
45 /* Required encryption head and tailroom */
46 #define IEEE80211_ENCRYPT_HEADROOM 8
47 #define IEEE80211_ENCRYPT_TAILROOM 18
49 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
50 * reception of at least three fragmented frames. This limit can be increased
51 * by changing this define, at the cost of slower frame reassembly and
52 * increased memory use (about 2 kB of RAM per entry). */
53 #define IEEE80211_FRAGMENT_MAX 4
55 #define TU_TO_EXP_TIME(x) (jiffies + usecs_to_jiffies((x) * 1024))
57 #define IEEE80211_DEFAULT_UAPSD_QUEUES \
58 (IEEE80211_WMM_IE_STA_QOSINFO_AC_BK | \
59 IEEE80211_WMM_IE_STA_QOSINFO_AC_BE | \
60 IEEE80211_WMM_IE_STA_QOSINFO_AC_VI | \
61 IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
63 #define IEEE80211_DEFAULT_MAX_SP_LEN \
64 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
66 struct ieee80211_fragment_entry {
67 unsigned long first_frag_time;
69 unsigned int rx_queue;
70 unsigned int last_frag;
71 unsigned int extra_len;
72 struct sk_buff_head skb_list;
73 int ccmp; /* Whether fragments were encrypted with CCMP */
74 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
78 struct ieee80211_bss {
79 /* don't want to look up all the time */
81 u8 ssid[IEEE80211_MAX_SSID_LEN];
88 unsigned long last_probe_resp;
90 #ifdef CONFIG_MAC80211_MESH
96 #define IEEE80211_MAX_SUPP_RATES 32
97 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
98 size_t supp_rates_len;
101 * During association, we save an ERP value from a probe response so
102 * that we can feed ERP info to the driver when handling the
103 * association completes. these fields probably won't be up-to-date
104 * otherwise, you probably don't want to use them.
110 static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
112 #ifdef CONFIG_MAC80211_MESH
113 return bss->mesh_cfg;
118 static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
120 #ifdef CONFIG_MAC80211_MESH
126 static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
128 #ifdef CONFIG_MAC80211_MESH
129 return bss->mesh_id_len;
135 typedef unsigned __bitwise__ ieee80211_tx_result;
136 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
137 #define TX_DROP ((__force ieee80211_tx_result) 1u)
138 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
140 #define IEEE80211_TX_UNICAST BIT(1)
141 #define IEEE80211_TX_PS_BUFFERED BIT(2)
143 struct ieee80211_tx_data {
145 struct sk_buff_head skbs;
146 struct ieee80211_local *local;
147 struct ieee80211_sub_if_data *sdata;
148 struct sta_info *sta;
149 struct ieee80211_key *key;
151 struct ieee80211_channel *channel;
157 typedef unsigned __bitwise__ ieee80211_rx_result;
158 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
159 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
160 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
161 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
164 * enum ieee80211_packet_rx_flags - packet RX flags
165 * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
166 * (incl. multicast frames)
167 * @IEEE80211_RX_IN_SCAN: received while scanning
168 * @IEEE80211_RX_FRAGMENTED: fragmented frame
169 * @IEEE80211_RX_AMSDU: a-MSDU packet
170 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
171 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
173 * These are per-frame flags that are attached to a frame in the
174 * @rx_flags field of &struct ieee80211_rx_status.
176 enum ieee80211_packet_rx_flags {
177 IEEE80211_RX_IN_SCAN = BIT(0),
178 IEEE80211_RX_RA_MATCH = BIT(1),
179 IEEE80211_RX_FRAGMENTED = BIT(2),
180 IEEE80211_RX_AMSDU = BIT(3),
181 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
182 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
186 * enum ieee80211_rx_flags - RX data flags
188 * @IEEE80211_RX_CMNTR: received on cooked monitor already
189 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
190 * to cfg80211_report_obss_beacon().
192 * These flags are used across handling multiple interfaces
193 * for a single frame.
195 enum ieee80211_rx_flags {
196 IEEE80211_RX_CMNTR = BIT(0),
197 IEEE80211_RX_BEACON_REPORTED = BIT(1),
200 struct ieee80211_rx_data {
202 struct ieee80211_local *local;
203 struct ieee80211_sub_if_data *sdata;
204 struct sta_info *sta;
205 struct ieee80211_key *key;
210 * Index into sequence numbers array, 0..16
211 * since the last (16) is used for non-QoS,
212 * will be 16 on non-QoS frames.
217 * Index into the security IV/PN arrays, 0..16
218 * since the last (16) is used for CCMP-encrypted
219 * management frames, will be set to 16 on mgmt
220 * frames and 0 on non-QoS frames.
230 int head_len, tail_len;
234 struct ieee80211_if_ap {
235 struct beacon_data __rcu *beacon;
236 struct sk_buff __rcu *probe_resp;
238 struct list_head vlans;
240 /* yes, this looks ugly, but guarantees that we can later use
242 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
243 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
244 struct sk_buff_head ps_bc_buf;
245 atomic_t num_sta_ps; /* number of stations in PS mode */
250 struct ieee80211_if_wds {
251 struct sta_info *sta;
252 u8 remote_addr[ETH_ALEN];
255 struct ieee80211_if_vlan {
256 struct list_head list;
258 /* used for all tx if the VLAN is configured to 4-addr mode */
259 struct sta_info __rcu *sta;
263 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
264 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
265 __u32 fwded_frames; /* Mesh total forwarded frames */
266 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
267 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
268 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
269 atomic_t estab_plinks;
272 #define PREQ_Q_F_START 0x1
273 #define PREQ_Q_F_REFRESH 0x2
274 struct mesh_preq_queue {
275 struct list_head list;
280 enum ieee80211_work_type {
281 IEEE80211_WORK_ABORT,
282 IEEE80211_WORK_DIRECT_PROBE,
284 IEEE80211_WORK_ASSOC_BEACON_WAIT,
285 IEEE80211_WORK_ASSOC,
286 IEEE80211_WORK_REMAIN_ON_CHANNEL,
287 IEEE80211_WORK_OFFCHANNEL_TX,
291 * enum work_done_result - indicates what to do after work was done
293 * @WORK_DONE_DESTROY: This work item is no longer needed, destroy.
294 * @WORK_DONE_REQUEUE: This work item was reset to be reused, and
295 * should be requeued.
297 enum work_done_result {
302 struct ieee80211_work {
303 struct list_head list;
305 struct rcu_head rcu_head;
307 struct ieee80211_sub_if_data *sdata;
309 enum work_done_result (*done)(struct ieee80211_work *wk,
310 struct sk_buff *skb);
312 struct ieee80211_channel *chan;
313 enum nl80211_channel_type chan_type;
315 unsigned long timeout;
316 enum ieee80211_work_type type;
318 u8 filter_ta[ETH_ALEN];
325 u16 algorithm, transaction;
326 u8 ssid[IEEE80211_MAX_SSID_LEN];
328 u8 key[WLAN_KEY_LEN_WEP104];
334 struct cfg80211_bss *bss;
335 const u8 *supp_rates;
336 const u8 *ht_information_ie;
337 enum ieee80211_smps_mode smps;
340 u8 prev_bssid[ETH_ALEN];
341 u8 ssid[IEEE80211_MAX_SSID_LEN];
344 bool wmm_used, use_11n, uapsd_used;
351 struct sk_buff *frame;
362 /* flags used in struct ieee80211_if_managed.flags */
363 enum ieee80211_sta_flags {
364 IEEE80211_STA_BEACON_POLL = BIT(0),
365 IEEE80211_STA_CONNECTION_POLL = BIT(1),
366 IEEE80211_STA_CONTROL_PORT = BIT(2),
367 IEEE80211_STA_DISABLE_11N = BIT(4),
368 IEEE80211_STA_CSA_RECEIVED = BIT(5),
369 IEEE80211_STA_MFP_ENABLED = BIT(6),
370 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
371 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
372 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
375 struct ieee80211_if_managed {
376 struct timer_list timer;
377 struct timer_list conn_mon_timer;
378 struct timer_list bcn_mon_timer;
379 struct timer_list chswitch_timer;
380 struct work_struct monitor_work;
381 struct work_struct chswitch_work;
382 struct work_struct beacon_connection_loss_work;
384 unsigned long beacon_timeout;
385 unsigned long probe_timeout;
386 int probe_send_count;
387 bool nullfunc_failed;
390 struct cfg80211_bss *associated;
396 unsigned long timers_running; /* used for quiesce/restart */
397 bool powersave; /* powersave requested for this iface */
398 bool broken_ap; /* AP is broken -- turn off powersave */
399 enum ieee80211_smps_mode req_smps, /* requested smps mode */
400 ap_smps, /* smps mode AP thinks we're in */
401 driver_smps_mode; /* smps mode request */
403 struct work_struct request_smps_work;
407 bool beacon_crc_valid;
411 IEEE80211_MFP_DISABLED,
412 IEEE80211_MFP_OPTIONAL,
413 IEEE80211_MFP_REQUIRED
414 } mfp; /* management frame protection */
416 int wmm_last_param_set;
420 /* Signal strength from the last Beacon frame in the current BSS. */
421 int last_beacon_signal;
424 * Weighted average of the signal strength from Beacon frames in the
425 * current BSS. This is in units of 1/16 of the signal unit to maintain
426 * accuracy and to speed up calculations, i.e., the value need to be
427 * divided by 16 to get the actual value.
429 int ave_beacon_signal;
432 * Number of Beacon frames used in ave_beacon_signal. This can be used
433 * to avoid generating less reliable cqm events that would be based
434 * only on couple of received frames.
436 unsigned int count_beacon_signal;
439 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
440 * that triggered a cqm event. 0 indicates that no event has been
441 * generated for the current association.
443 int last_cqm_event_signal;
446 * State variables for keeping track of RSSI of the AP currently
447 * connected to and informing driver when RSSI has gone
448 * below/above a certain threshold.
450 int rssi_min_thold, rssi_max_thold;
451 int last_ave_beacon_signal;
453 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
454 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
457 struct ieee80211_if_ibss {
458 struct timer_list timer;
462 unsigned long last_scan_completed;
473 u8 ssid[IEEE80211_MAX_SSID_LEN];
476 struct ieee80211_channel *channel;
478 unsigned long ibss_join_req;
479 /* probe response/beacon for IBSS */
480 struct sk_buff __rcu *presp;
484 IEEE80211_IBSS_MLME_SEARCH,
485 IEEE80211_IBSS_MLME_JOINED,
489 struct ieee80211_if_mesh {
490 struct timer_list housekeeping_timer;
491 struct timer_list mesh_path_timer;
492 struct timer_list mesh_path_root_timer;
494 unsigned long timers_running;
496 unsigned long wrkq_flags;
498 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
500 /* Active Path Selection Protocol Identifier */
502 /* Active Path Selection Metric Identifier */
504 /* Congestion Control Mode Identifier */
506 /* Synchronization Protocol Identifier */
508 /* Authentication Protocol Identifier */
510 /* Local mesh Sequence Number */
512 /* Last used PREQ ID */
515 /* Timestamp of last SN update */
516 unsigned long last_sn_update;
517 /* Timestamp of last SN sent */
518 unsigned long last_preq;
519 struct mesh_rmc *rmc;
520 spinlock_t mesh_preq_queue_lock;
521 struct mesh_preq_queue preq_queue;
523 struct mesh_stats mshstats;
524 struct mesh_config mshcfg;
526 bool accepting_plinks;
531 IEEE80211_MESH_SEC_NONE = 0x0,
532 IEEE80211_MESH_SEC_AUTHED = 0x1,
533 IEEE80211_MESH_SEC_SECURED = 0x2,
537 #ifdef CONFIG_MAC80211_MESH
538 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
539 do { (msh)->mshstats.name++; } while (0)
541 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
546 * enum ieee80211_sub_if_data_flags - virtual interface flags
548 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
549 * @IEEE80211_SDATA_PROMISC: interface is promisc
550 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
551 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
552 * associated stations and deliver multicast frames both
553 * back to wireless media and to the local net stack.
554 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
555 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
557 enum ieee80211_sub_if_data_flags {
558 IEEE80211_SDATA_ALLMULTI = BIT(0),
559 IEEE80211_SDATA_PROMISC = BIT(1),
560 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
561 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
562 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
563 IEEE80211_SDATA_IN_DRIVER = BIT(5),
567 * enum ieee80211_sdata_state_bits - virtual interface state bits
568 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
569 * mirrors netif_running() but is separate for interface type
570 * change handling while the interface is up
571 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
572 * mode, so queues are stopped
574 enum ieee80211_sdata_state_bits {
576 SDATA_STATE_OFFCHANNEL,
579 struct ieee80211_sub_if_data {
580 struct list_head list;
582 struct wireless_dev wdev;
585 struct list_head key_list;
587 /* count for keys needing tailroom space allocation */
588 int crypto_tx_tailroom_needed_cnt;
590 struct net_device *dev;
591 struct ieee80211_local *local;
597 int drop_unencrypted;
602 * keep track of whether the HT opmode (stored in
603 * vif.bss_info.ht_operation_mode) is valid.
605 bool ht_opmode_valid;
607 /* to detect idle changes */
610 /* Fragment table for host-based reassembly */
611 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
612 unsigned int fragment_next;
614 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
615 struct ieee80211_key __rcu *default_unicast_key;
616 struct ieee80211_key __rcu *default_multicast_key;
617 struct ieee80211_key __rcu *default_mgmt_key;
620 __be16 control_port_protocol;
621 bool control_port_no_encrypt;
623 struct ieee80211_tx_queue_params tx_conf[IEEE80211_MAX_QUEUES];
625 struct work_struct work;
626 struct sk_buff_head skb_queue;
628 bool arp_filter_state;
631 * AP this belongs to: self in AP mode and
632 * corresponding AP in VLAN mode, NULL for
633 * all others (might be needed later in IBSS)
635 struct ieee80211_if_ap *bss;
637 /* bitmap of allowed (non-MCS) rate indexes for rate control */
638 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
641 struct ieee80211_if_ap ap;
642 struct ieee80211_if_wds wds;
643 struct ieee80211_if_vlan vlan;
644 struct ieee80211_if_managed mgd;
645 struct ieee80211_if_ibss ibss;
646 struct ieee80211_if_mesh mesh;
650 #ifdef CONFIG_MAC80211_DEBUGFS
653 struct dentry *subdir_stations;
654 struct dentry *default_unicast_key;
655 struct dentry *default_multicast_key;
656 struct dentry *default_mgmt_key;
659 /* must be last, dynamically sized area in this! */
660 struct ieee80211_vif vif;
664 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
666 return container_of(p, struct ieee80211_sub_if_data, vif);
669 enum sdata_queue_type {
670 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
671 IEEE80211_SDATA_QUEUE_AGG_START = 1,
672 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
676 IEEE80211_RX_MSG = 1,
677 IEEE80211_TX_STATUS_MSG = 2,
678 IEEE80211_EOSP_MSG = 3,
681 struct skb_eosp_msg_data {
682 u8 sta[ETH_ALEN], iface[ETH_ALEN];
685 enum queue_stop_reason {
686 IEEE80211_QUEUE_STOP_REASON_DRIVER,
687 IEEE80211_QUEUE_STOP_REASON_PS,
688 IEEE80211_QUEUE_STOP_REASON_CSA,
689 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
690 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
691 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
692 IEEE80211_QUEUE_STOP_REASON_CHTYPE_CHANGE,
695 #ifdef CONFIG_MAC80211_LEDS
696 struct tpt_led_trigger {
697 struct led_trigger trig;
699 const struct ieee80211_tpt_blink *blink_table;
700 unsigned int blink_table_len;
701 struct timer_list timer;
702 unsigned long prev_traffic;
703 unsigned long tx_bytes, rx_bytes;
704 unsigned int active, want;
710 * mac80211 scan flags - currently active scan mode
712 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
713 * well be on the operating channel
714 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
715 * determine if we are on the operating channel or not
716 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
717 * that the scan completed.
718 * @SCAN_ABORTED: Set for our scan work function when the driver reported
719 * a scan complete for an aborted scan.
729 * enum mac80211_scan_state - scan state machine states
731 * @SCAN_DECISION: Main entry point to the scan state machine, this state
732 * determines if we should keep on scanning or switch back to the
734 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
735 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
736 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
738 * @SCAN_RESUME: Resume the scan and scan the next channel
740 enum mac80211_scan_state {
748 struct ieee80211_local {
749 /* embed the driver visible part.
750 * don't cast (use the static inlines below), but we keep
751 * it first anyway so they become a no-op */
752 struct ieee80211_hw hw;
754 const struct ieee80211_ops *ops;
757 * work stuff, potentially off-channel (in the future)
759 struct list_head work_list;
760 struct timer_list work_timer;
761 struct work_struct work_work;
762 struct sk_buff_head work_skb_queue;
765 * private workqueue to mac80211. mac80211 makes this accessible
766 * via ieee80211_queue_work()
768 struct workqueue_struct *workqueue;
770 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
771 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
772 spinlock_t queue_stop_reason_lock;
775 int monitors, cooked_mntrs;
776 /* number of interfaces with corresponding FIF_ flags */
777 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
780 unsigned int filter_flags; /* FIF_* */
782 bool wiphy_ciphers_allocated;
784 /* protects the aggregated multicast list and filter calls */
785 spinlock_t filter_lock;
787 /* used for uploading changed mc list */
788 struct work_struct reconfig_filter;
790 /* used to reconfigure hardware SM PS */
791 struct work_struct recalc_smps;
793 /* aggregated multicast list */
794 struct netdev_hw_addr_list mc_list;
796 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
799 * suspended is true if we finished all the suspend _and_ we have
800 * not yet come up from resume. This is to be used by mac80211
801 * to ensure driver sanity during suspend and mac80211's own
802 * sanity. It can eventually be used for WoW as well.
807 * Resuming is true while suspended, but when we're reprogramming the
808 * hardware -- at that time it's allowed to use ieee80211_queue_work()
809 * again even though some other parts of the stack are still suspended
810 * and we still drop received frames to avoid waking the stack.
815 * quiescing is true during the suspend process _only_ to
816 * ease timer cancelling etc.
820 /* device is started */
823 /* wowlan is enabled -- don't reconfig on resume */
826 int tx_headroom; /* required headroom for hardware/radiotap */
828 /* Tasklet and skb queue to process calls from IRQ mode. All frames
829 * added to skb_queue will be processed, but frames in
830 * skb_queue_unreliable may be dropped if the total length of these
831 * queues increases over the limit. */
832 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
833 struct tasklet_struct tasklet;
834 struct sk_buff_head skb_queue;
835 struct sk_buff_head skb_queue_unreliable;
838 * Internal FIFO queue which is shared between multiple rx path
839 * stages. Its main task is to provide a serialization mechanism,
840 * so all rx handlers can enjoy having exclusive access to their
841 * private data structures.
843 struct sk_buff_head rx_skb_queue;
844 bool running_rx_handler; /* protected by rx_skb_queue.lock */
848 * The mutex only protects the list and counter,
849 * reads are done in RCU.
850 * Additionally, the lock protects the hash table,
851 * the pending list and each BSS's TIM bitmap.
853 struct mutex sta_mtx;
855 unsigned long num_sta;
856 struct list_head sta_list, sta_pending_list;
857 struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
858 struct timer_list sta_cleanup;
859 struct work_struct sta_finish_work;
862 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
863 struct tasklet_struct tx_pending_tasklet;
865 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
867 /* number of interfaces with corresponding IFF_ flags */
868 atomic_t iff_allmultis, iff_promiscs;
870 struct rate_control_ref *rate_ctrl;
872 struct crypto_cipher *wep_tx_tfm;
873 struct crypto_cipher *wep_rx_tfm;
877 struct list_head interfaces;
878 struct mutex iflist_mtx;
881 * Key mutex, protects sdata's key_list and sta_info's
882 * key pointers (write access, they're RCU.)
884 struct mutex key_mtx;
886 /* mutex for scan and work locking */
889 /* Scanning and BSS list */
890 unsigned long scanning;
891 struct cfg80211_ssid scan_ssid;
892 struct cfg80211_scan_request *int_scan_req;
893 struct cfg80211_scan_request *scan_req, *hw_scan_req;
894 struct ieee80211_channel *scan_channel;
895 enum ieee80211_band hw_scan_band;
896 int scan_channel_idx;
900 struct ieee80211_sched_scan_ies sched_scan_ies;
901 struct work_struct sched_scan_stopped_work;
903 unsigned long leave_oper_channel_time;
904 enum mac80211_scan_state next_scan_state;
905 struct delayed_work scan_work;
906 struct ieee80211_sub_if_data *scan_sdata;
907 enum nl80211_channel_type _oper_channel_type;
908 struct ieee80211_channel *oper_channel, *csa_channel;
910 /* Temporary remain-on-channel for off-channel operations */
911 struct ieee80211_channel *tmp_channel;
912 enum nl80211_channel_type tmp_channel_type;
915 /* dot11CountersTable */
916 u32 dot11TransmittedFragmentCount;
917 u32 dot11MulticastTransmittedFrameCount;
918 u32 dot11FailedCount;
920 u32 dot11MultipleRetryCount;
921 u32 dot11FrameDuplicateCount;
922 u32 dot11ReceivedFragmentCount;
923 u32 dot11MulticastReceivedFrameCount;
924 u32 dot11TransmittedFrameCount;
926 #ifdef CONFIG_MAC80211_LEDS
927 int tx_led_counter, rx_led_counter;
928 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
929 struct tpt_led_trigger *tpt_led_trigger;
930 char tx_led_name[32], rx_led_name[32],
931 assoc_led_name[32], radio_led_name[32];
934 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
935 /* TX/RX handler statistics */
936 unsigned int tx_handlers_drop;
937 unsigned int tx_handlers_queued;
938 unsigned int tx_handlers_drop_unencrypted;
939 unsigned int tx_handlers_drop_fragment;
940 unsigned int tx_handlers_drop_wep;
941 unsigned int tx_handlers_drop_not_assoc;
942 unsigned int tx_handlers_drop_unauth_port;
943 unsigned int rx_handlers_drop;
944 unsigned int rx_handlers_queued;
945 unsigned int rx_handlers_drop_nullfunc;
946 unsigned int rx_handlers_drop_defrag;
947 unsigned int rx_handlers_drop_short;
948 unsigned int rx_handlers_drop_passive_scan;
949 unsigned int tx_expand_skb_head;
950 unsigned int tx_expand_skb_head_cloned;
951 unsigned int rx_expand_skb_head;
952 unsigned int rx_expand_skb_head2;
953 unsigned int rx_handlers_fragments;
954 unsigned int tx_status_drop;
955 #define I802_DEBUG_INC(c) (c)++
956 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
957 #define I802_DEBUG_INC(c) do { } while (0)
958 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
961 int total_ps_buffered; /* total number of all buffered unicast and
962 * multicast packets for power saving stations
964 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
967 * Bitmask of enabled u-apsd queues,
968 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
971 unsigned int uapsd_queues;
974 * Maximum number of buffered frames AP can deliver during a
975 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
976 * Needs a new association to take effect.
978 unsigned int uapsd_max_sp_len;
981 bool offchannel_ps_enabled;
983 * PS can only be enabled when we have exactly one managed
984 * interface (and monitors) in PS, this then points there.
986 struct ieee80211_sub_if_data *ps_sdata;
987 struct work_struct dynamic_ps_enable_work;
988 struct work_struct dynamic_ps_disable_work;
989 struct timer_list dynamic_ps_timer;
990 struct notifier_block network_latency_notifier;
991 struct notifier_block ifa_notifier;
994 * The dynamic ps timeout configured from user space via WEXT -
995 * this will override whatever chosen by mac80211 internally.
997 int dynamic_ps_forced_timeout;
998 int dynamic_ps_user_timeout;
999 bool disable_dynamic_ps;
1001 int user_power_level; /* in dBm */
1002 int power_constr_level; /* in dBm */
1004 enum ieee80211_smps_mode smps_mode;
1006 struct work_struct restart_work;
1008 #ifdef CONFIG_MAC80211_DEBUGFS
1009 struct local_debugfsdentries {
1010 struct dentry *rcdir;
1011 struct dentry *keys;
1015 struct ieee80211_channel *hw_roc_channel;
1016 struct net_device *hw_roc_dev;
1017 struct sk_buff *hw_roc_skb, *hw_roc_skb_for_status;
1018 struct work_struct hw_roc_start, hw_roc_done;
1019 enum nl80211_channel_type hw_roc_channel_type;
1020 unsigned int hw_roc_duration;
1024 struct idr ack_status_frames;
1025 spinlock_t ack_status_lock;
1027 /* dummy netdev for use w/ NAPI */
1028 struct net_device napi_dev;
1030 struct napi_struct napi;
1033 static inline struct ieee80211_sub_if_data *
1034 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1036 return netdev_priv(dev);
1039 /* this struct represents 802.11n's RA/TID combination */
1040 struct ieee80211_ra_tid {
1045 /* Parsed Information Elements */
1046 struct ieee802_11_elems {
1050 /* pointers to IEs */
1056 struct ieee80211_tim_ie *tim;
1065 struct ieee80211_ht_cap *ht_cap_elem;
1066 struct ieee80211_ht_info *ht_info_elem;
1067 struct ieee80211_meshconf_ie *mesh_config;
1073 struct ieee80211_rann_ie *rann;
1076 u8 *pwr_constr_elem;
1077 u8 *quiet_elem; /* first quite element */
1080 /* length of them, respectively */
1092 u8 ext_supp_rates_len;
1100 u8 ch_switch_elem_len;
1101 u8 country_elem_len;
1102 u8 pwr_constr_elem_len;
1104 u8 num_of_quiet_elem; /* can be more the one */
1108 static inline struct ieee80211_local *hw_to_local(
1109 struct ieee80211_hw *hw)
1111 return container_of(hw, struct ieee80211_local, hw);
1114 static inline struct ieee80211_hw *local_to_hw(
1115 struct ieee80211_local *local)
1121 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1123 return compare_ether_addr(raddr, addr) == 0 ||
1124 is_broadcast_ether_addr(raddr);
1128 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1129 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1130 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1132 void ieee80211_configure_filter(struct ieee80211_local *local);
1133 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1136 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1137 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1138 struct cfg80211_auth_request *req);
1139 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1140 struct cfg80211_assoc_request *req);
1141 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1142 struct cfg80211_deauth_request *req,
1144 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1145 struct cfg80211_disassoc_request *req,
1147 void ieee80211_send_pspoll(struct ieee80211_local *local,
1148 struct ieee80211_sub_if_data *sdata);
1149 void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
1150 int ieee80211_max_network_latency(struct notifier_block *nb,
1151 unsigned long data, void *dummy);
1152 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1153 void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
1154 struct ieee80211_channel_sw_ie *sw_elem,
1155 struct ieee80211_bss *bss,
1157 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
1158 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1159 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1160 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1161 struct sk_buff *skb);
1162 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1163 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1166 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1167 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1168 struct sta_info *ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata,
1169 u8 *bssid, u8 *addr, u32 supp_rates,
1171 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1172 struct cfg80211_ibss_params *params);
1173 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1174 void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
1175 void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
1176 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1177 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1178 struct sk_buff *skb);
1181 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1182 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1183 struct sk_buff *skb);
1185 /* scan/BSS handling */
1186 void ieee80211_scan_work(struct work_struct *work);
1187 int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
1188 const u8 *ssid, u8 ssid_len,
1189 struct ieee80211_channel *chan);
1190 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1191 struct cfg80211_scan_request *req);
1192 void ieee80211_scan_cancel(struct ieee80211_local *local);
1194 ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
1196 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1197 struct ieee80211_bss *
1198 ieee80211_bss_info_update(struct ieee80211_local *local,
1199 struct ieee80211_rx_status *rx_status,
1200 struct ieee80211_mgmt *mgmt,
1202 struct ieee802_11_elems *elems,
1203 struct ieee80211_channel *channel,
1205 struct ieee80211_bss *
1206 ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
1207 u8 *ssid, u8 ssid_len);
1208 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1209 struct ieee80211_bss *bss);
1211 /* scheduled scan handling */
1212 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1213 struct cfg80211_sched_scan_request *req);
1214 int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
1215 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1217 /* off-channel helpers */
1218 bool ieee80211_cfg_on_oper_channel(struct ieee80211_local *local);
1219 void ieee80211_offchannel_enable_all_ps(struct ieee80211_local *local,
1221 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local,
1222 bool offchannel_ps_enable);
1223 void ieee80211_offchannel_return(struct ieee80211_local *local,
1224 bool enable_beaconing,
1225 bool offchannel_ps_disable);
1226 void ieee80211_hw_roc_setup(struct ieee80211_local *local);
1228 /* interface handling */
1229 int ieee80211_iface_init(void);
1230 void ieee80211_iface_exit(void);
1231 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1232 struct net_device **new_dev, enum nl80211_iftype type,
1233 struct vif_params *params);
1234 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1235 enum nl80211_iftype type);
1236 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1237 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1238 u32 __ieee80211_recalc_idle(struct ieee80211_local *local);
1239 void ieee80211_recalc_idle(struct ieee80211_local *local);
1240 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1243 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1245 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1249 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1250 void ieee80211_tx_pending(unsigned long data);
1251 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1252 struct net_device *dev);
1253 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1254 struct net_device *dev);
1257 bool ieee80111_cfg_override_disables_ht40(struct ieee80211_sub_if_data *sdata);
1258 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1259 struct ieee80211_sta_ht_cap *ht_cap);
1260 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1261 struct ieee80211_supported_band *sband,
1262 struct ieee80211_ht_cap *ht_cap_ie,
1263 struct ieee80211_sta_ht_cap *ht_cap);
1264 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1265 const u8 *da, u16 tid,
1266 u16 initiator, u16 reason_code);
1267 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1268 enum ieee80211_smps_mode smps, const u8 *da,
1270 void ieee80211_request_smps_work(struct work_struct *work);
1272 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1273 u16 initiator, u16 reason, bool stop);
1274 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1275 u16 initiator, u16 reason, bool stop);
1276 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, bool tx);
1277 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1278 struct sta_info *sta,
1279 struct ieee80211_mgmt *mgmt, size_t len);
1280 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1281 struct sta_info *sta,
1282 struct ieee80211_mgmt *mgmt,
1284 void ieee80211_process_addba_request(struct ieee80211_local *local,
1285 struct sta_info *sta,
1286 struct ieee80211_mgmt *mgmt,
1289 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1290 enum ieee80211_back_parties initiator,
1292 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1293 enum ieee80211_back_parties initiator,
1295 void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1296 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
1297 void ieee80211_ba_session_work(struct work_struct *work);
1298 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1299 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1301 /* Spectrum management */
1302 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1303 struct ieee80211_mgmt *mgmt,
1306 /* Suspend/resume and hw reconfiguration */
1307 int ieee80211_reconfig(struct ieee80211_local *local);
1308 void ieee80211_stop_device(struct ieee80211_local *local);
1311 int __ieee80211_suspend(struct ieee80211_hw *hw,
1312 struct cfg80211_wowlan *wowlan);
1314 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1316 struct ieee80211_local *local = hw_to_local(hw);
1318 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
1319 "%s: resume with hardware scan still in progress\n",
1320 wiphy_name(hw->wiphy));
1322 return ieee80211_reconfig(hw_to_local(hw));
1325 static inline int __ieee80211_suspend(struct ieee80211_hw *hw,
1326 struct cfg80211_wowlan *wowlan)
1331 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1337 /* utility functions/constants */
1338 extern void *mac80211_wiphy_privid; /* for wiphy privid */
1339 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
1340 enum nl80211_iftype type);
1341 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
1342 int rate, int erp, int short_preamble);
1343 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
1344 struct ieee80211_hdr *hdr, const u8 *tsc,
1346 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata);
1347 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
1348 void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
1349 void ieee802_11_parse_elems(u8 *start, size_t len,
1350 struct ieee802_11_elems *elems);
1351 u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
1352 struct ieee802_11_elems *elems,
1353 u64 filter, u32 crc);
1354 u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
1355 enum ieee80211_band band);
1357 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1358 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1359 void ieee80211_dynamic_ps_timer(unsigned long data);
1360 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1361 struct ieee80211_sub_if_data *sdata,
1363 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1364 struct ieee80211_hdr *hdr);
1365 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
1366 struct ieee80211_hdr *hdr, bool ack);
1367 void ieee80211_beacon_connection_loss_work(struct work_struct *work);
1369 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1370 enum queue_stop_reason reason);
1371 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1372 enum queue_stop_reason reason);
1373 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1374 enum queue_stop_reason reason);
1375 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1376 enum queue_stop_reason reason);
1377 void ieee80211_add_pending_skb(struct ieee80211_local *local,
1378 struct sk_buff *skb);
1379 void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1380 struct sk_buff_head *skbs);
1381 void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
1382 struct sk_buff_head *skbs,
1383 void (*fn)(void *data), void *data);
1385 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1386 u16 transaction, u16 auth_alg,
1387 u8 *extra, size_t extra_len, const u8 *bssid,
1388 const u8 *key, u8 key_len, u8 key_idx);
1389 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1390 const u8 *ie, size_t ie_len,
1391 enum ieee80211_band band, u32 rate_mask,
1393 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
1394 u8 *dst, u32 ratemask,
1395 const u8 *ssid, size_t ssid_len,
1396 const u8 *ie, size_t ie_len,
1398 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
1399 const u8 *ssid, size_t ssid_len,
1400 const u8 *ie, size_t ie_len,
1401 u32 ratemask, bool directed, bool no_cck);
1403 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1404 const size_t supp_rates_len,
1405 const u8 *supp_rates);
1406 u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1407 struct ieee802_11_elems *elems,
1408 enum ieee80211_band band);
1409 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1410 enum ieee80211_smps_mode smps_mode);
1411 void ieee80211_recalc_smps(struct ieee80211_local *local);
1413 size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
1414 const u8 *ids, int n_ids, size_t offset);
1415 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
1416 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1418 u8 *ieee80211_ie_build_ht_info(u8 *pos,
1419 struct ieee80211_sta_ht_cap *ht_cap,
1420 struct ieee80211_channel *channel,
1421 enum nl80211_channel_type channel_type);
1423 /* internal work items */
1424 void ieee80211_work_init(struct ieee80211_local *local);
1425 void ieee80211_add_work(struct ieee80211_work *wk);
1426 void free_work(struct ieee80211_work *wk);
1427 void ieee80211_work_purge(struct ieee80211_sub_if_data *sdata);
1428 ieee80211_rx_result ieee80211_work_rx_mgmt(struct ieee80211_sub_if_data *sdata,
1429 struct sk_buff *skb);
1430 int ieee80211_wk_remain_on_channel(struct ieee80211_sub_if_data *sdata,
1431 struct ieee80211_channel *chan,
1432 enum nl80211_channel_type channel_type,
1433 unsigned int duration, u64 *cookie);
1434 int ieee80211_wk_cancel_remain_on_channel(
1435 struct ieee80211_sub_if_data *sdata, u64 cookie);
1437 /* channel management */
1438 enum ieee80211_chan_mode {
1439 CHAN_MODE_UNDEFINED,
1444 enum ieee80211_chan_mode
1445 ieee80211_get_channel_mode(struct ieee80211_local *local,
1446 struct ieee80211_sub_if_data *ignore);
1447 bool ieee80211_set_channel_type(struct ieee80211_local *local,
1448 struct ieee80211_sub_if_data *sdata,
1449 enum nl80211_channel_type chantype);
1450 enum nl80211_channel_type
1451 ieee80211_ht_info_to_channel_type(struct ieee80211_ht_info *ht_info);
1453 #ifdef CONFIG_MAC80211_NOINLINE
1454 #define debug_noinline noinline
1456 #define debug_noinline
1459 #endif /* IEEE80211_I_H */