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 <net/ieee80211_radiotap.h>
28 #include <net/cfg80211.h>
29 #include <net/mac80211.h>
33 struct ieee80211_local
;
35 /* Maximum number of broadcast/multicast frames to buffer when some of the
36 * associated stations are using power saving. */
37 #define AP_MAX_BC_BUFFER 128
39 /* Maximum number of frames buffered to all STAs, including multicast frames.
40 * Note: increasing this limit increases the potential memory requirement. Each
41 * frame can be up to about 2 kB long. */
42 #define TOTAL_MAX_TX_BUFFER 512
44 /* Required encryption head and tailroom */
45 #define IEEE80211_ENCRYPT_HEADROOM 8
46 #define IEEE80211_ENCRYPT_TAILROOM 18
48 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
49 * reception of at least three fragmented frames. This limit can be increased
50 * by changing this define, at the cost of slower frame reassembly and
51 * increased memory use (about 2 kB of RAM per entry). */
52 #define IEEE80211_FRAGMENT_MAX 4
54 #define TU_TO_EXP_TIME(x) (jiffies + usecs_to_jiffies((x) * 1024))
56 #define IEEE80211_DEFAULT_UAPSD_QUEUES \
57 (IEEE80211_WMM_IE_STA_QOSINFO_AC_BK | \
58 IEEE80211_WMM_IE_STA_QOSINFO_AC_BE | \
59 IEEE80211_WMM_IE_STA_QOSINFO_AC_VI | \
60 IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
62 #define IEEE80211_DEFAULT_MAX_SP_LEN \
63 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
65 struct ieee80211_fragment_entry
{
66 unsigned long first_frag_time
;
68 unsigned int rx_queue
;
69 unsigned int last_frag
;
70 unsigned int extra_len
;
71 struct sk_buff_head skb_list
;
72 int ccmp
; /* Whether fragments were encrypted with CCMP */
73 u8 last_pn
[6]; /* PN of the last fragment if CCMP was used */
77 struct ieee80211_bss
{
78 /* don't want to look up all the time */
80 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
87 unsigned long last_probe_resp
;
89 #ifdef CONFIG_MAC80211_MESH
95 #define IEEE80211_MAX_SUPP_RATES 32
96 u8 supp_rates
[IEEE80211_MAX_SUPP_RATES
];
97 size_t supp_rates_len
;
100 * During association, we save an ERP value from a probe response so
101 * that we can feed ERP info to the driver when handling the
102 * association completes. these fields probably won't be up-to-date
103 * otherwise, you probably don't want to use them.
109 static inline u8
*bss_mesh_cfg(struct ieee80211_bss
*bss
)
111 #ifdef CONFIG_MAC80211_MESH
112 return bss
->mesh_cfg
;
117 static inline u8
*bss_mesh_id(struct ieee80211_bss
*bss
)
119 #ifdef CONFIG_MAC80211_MESH
125 static inline u8
bss_mesh_id_len(struct ieee80211_bss
*bss
)
127 #ifdef CONFIG_MAC80211_MESH
128 return bss
->mesh_id_len
;
134 typedef unsigned __bitwise__ ieee80211_tx_result
;
135 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
136 #define TX_DROP ((__force ieee80211_tx_result) 1u)
137 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
139 #define IEEE80211_TX_UNICAST BIT(1)
140 #define IEEE80211_TX_PS_BUFFERED BIT(2)
142 struct ieee80211_tx_data
{
144 struct ieee80211_local
*local
;
145 struct ieee80211_sub_if_data
*sdata
;
146 struct sta_info
*sta
;
147 struct ieee80211_key
*key
;
149 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)
162 * enum ieee80211_packet_rx_flags - packet RX flags
163 * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
164 * (incl. multicast frames)
165 * @IEEE80211_RX_IN_SCAN: received while scanning
166 * @IEEE80211_RX_FRAGMENTED: fragmented frame
167 * @IEEE80211_RX_AMSDU: a-MSDU packet
168 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
169 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
171 * These are per-frame flags that are attached to a frame in the
172 * @rx_flags field of &struct ieee80211_rx_status.
174 enum ieee80211_packet_rx_flags
{
175 IEEE80211_RX_IN_SCAN
= BIT(0),
176 IEEE80211_RX_RA_MATCH
= BIT(1),
177 IEEE80211_RX_FRAGMENTED
= BIT(2),
178 IEEE80211_RX_AMSDU
= BIT(3),
179 IEEE80211_RX_MALFORMED_ACTION_FRM
= BIT(4),
180 IEEE80211_RX_DEFERRED_RELEASE
= BIT(5),
184 * enum ieee80211_rx_flags - RX data flags
186 * @IEEE80211_RX_CMNTR: received on cooked monitor already
188 * These flags are used across handling multiple interfaces
189 * for a single frame.
191 enum ieee80211_rx_flags
{
192 IEEE80211_RX_CMNTR
= BIT(0),
195 struct ieee80211_rx_data
{
197 struct ieee80211_local
*local
;
198 struct ieee80211_sub_if_data
*sdata
;
199 struct sta_info
*sta
;
200 struct ieee80211_key
*key
;
205 * Index into sequence numbers array, 0..16
206 * since the last (16) is used for non-QoS,
207 * will be 16 on non-QoS frames.
212 * Index into the security IV/PN arrays, 0..16
213 * since the last (16) is used for CCMP-encrypted
214 * management frames, will be set to 16 on mgmt
215 * frames and 0 on non-QoS frames.
225 int head_len
, tail_len
;
229 struct ieee80211_if_ap
{
230 struct beacon_data __rcu
*beacon
;
232 struct list_head vlans
;
234 /* yes, this looks ugly, but guarantees that we can later use
236 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
237 u8 tim
[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID
+ 1)];
238 struct sk_buff_head ps_bc_buf
;
239 atomic_t num_sta_ps
; /* number of stations in PS mode */
244 struct ieee80211_if_wds
{
245 struct sta_info
*sta
;
246 u8 remote_addr
[ETH_ALEN
];
249 struct ieee80211_if_vlan
{
250 struct list_head list
;
252 /* used for all tx if the VLAN is configured to 4-addr mode */
253 struct sta_info __rcu
*sta
;
257 __u32 fwded_mcast
; /* Mesh forwarded multicast frames */
258 __u32 fwded_unicast
; /* Mesh forwarded unicast frames */
259 __u32 fwded_frames
; /* Mesh total forwarded frames */
260 __u32 dropped_frames_ttl
; /* Not transmitted since mesh_ttl == 0*/
261 __u32 dropped_frames_no_route
; /* Not transmitted, no route found */
262 __u32 dropped_frames_congestion
;/* Not forwarded due to congestion */
263 atomic_t estab_plinks
;
266 #define PREQ_Q_F_START 0x1
267 #define PREQ_Q_F_REFRESH 0x2
268 struct mesh_preq_queue
{
269 struct list_head list
;
274 enum ieee80211_work_type
{
275 IEEE80211_WORK_ABORT
,
276 IEEE80211_WORK_DIRECT_PROBE
,
278 IEEE80211_WORK_ASSOC_BEACON_WAIT
,
279 IEEE80211_WORK_ASSOC
,
280 IEEE80211_WORK_REMAIN_ON_CHANNEL
,
281 IEEE80211_WORK_OFFCHANNEL_TX
,
285 * enum work_done_result - indicates what to do after work was done
287 * @WORK_DONE_DESTROY: This work item is no longer needed, destroy.
288 * @WORK_DONE_REQUEUE: This work item was reset to be reused, and
289 * should be requeued.
291 enum work_done_result
{
296 struct ieee80211_work
{
297 struct list_head list
;
299 struct rcu_head rcu_head
;
301 struct ieee80211_sub_if_data
*sdata
;
303 enum work_done_result (*done
)(struct ieee80211_work
*wk
,
304 struct sk_buff
*skb
);
306 struct ieee80211_channel
*chan
;
307 enum nl80211_channel_type chan_type
;
309 unsigned long timeout
;
310 enum ieee80211_work_type type
;
312 u8 filter_ta
[ETH_ALEN
];
319 u16 algorithm
, transaction
;
320 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
322 u8 key
[WLAN_KEY_LEN_WEP104
];
328 struct cfg80211_bss
*bss
;
329 const u8
*supp_rates
;
330 const u8
*ht_information_ie
;
331 enum ieee80211_smps_mode smps
;
334 u8 prev_bssid
[ETH_ALEN
];
335 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
338 bool wmm_used
, use_11n
, uapsd_used
;
345 struct sk_buff
*frame
;
356 /* flags used in struct ieee80211_if_managed.flags */
357 enum ieee80211_sta_flags
{
358 IEEE80211_STA_BEACON_POLL
= BIT(0),
359 IEEE80211_STA_CONNECTION_POLL
= BIT(1),
360 IEEE80211_STA_CONTROL_PORT
= BIT(2),
361 IEEE80211_STA_DISABLE_11N
= BIT(4),
362 IEEE80211_STA_CSA_RECEIVED
= BIT(5),
363 IEEE80211_STA_MFP_ENABLED
= BIT(6),
364 IEEE80211_STA_UAPSD_ENABLED
= BIT(7),
365 IEEE80211_STA_NULLFUNC_ACKED
= BIT(8),
366 IEEE80211_STA_RESET_SIGNAL_AVE
= BIT(9),
369 struct ieee80211_if_managed
{
370 struct timer_list timer
;
371 struct timer_list conn_mon_timer
;
372 struct timer_list bcn_mon_timer
;
373 struct timer_list chswitch_timer
;
374 struct work_struct monitor_work
;
375 struct work_struct chswitch_work
;
376 struct work_struct beacon_connection_loss_work
;
378 unsigned long beacon_timeout
;
379 unsigned long probe_timeout
;
380 int probe_send_count
;
381 bool nullfunc_failed
;
384 struct cfg80211_bss
*associated
;
390 unsigned long timers_running
; /* used for quiesce/restart */
391 bool powersave
; /* powersave requested for this iface */
392 enum ieee80211_smps_mode req_smps
, /* requested smps mode */
393 ap_smps
, /* smps mode AP thinks we're in */
394 driver_smps_mode
; /* smps mode request */
396 struct work_struct request_smps_work
;
400 bool beacon_crc_valid
;
404 IEEE80211_MFP_DISABLED
,
405 IEEE80211_MFP_OPTIONAL
,
406 IEEE80211_MFP_REQUIRED
407 } mfp
; /* management frame protection */
409 int wmm_last_param_set
;
413 /* Signal strength from the last Beacon frame in the current BSS. */
414 int last_beacon_signal
;
417 * Weighted average of the signal strength from Beacon frames in the
418 * current BSS. This is in units of 1/16 of the signal unit to maintain
419 * accuracy and to speed up calculations, i.e., the value need to be
420 * divided by 16 to get the actual value.
422 int ave_beacon_signal
;
425 * Number of Beacon frames used in ave_beacon_signal. This can be used
426 * to avoid generating less reliable cqm events that would be based
427 * only on couple of received frames.
429 unsigned int count_beacon_signal
;
432 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
433 * that triggered a cqm event. 0 indicates that no event has been
434 * generated for the current association.
436 int last_cqm_event_signal
;
439 * State variables for keeping track of RSSI of the AP currently
440 * connected to and informing driver when RSSI has gone
441 * below/above a certain threshold.
443 int rssi_min_thold
, rssi_max_thold
;
444 int last_ave_beacon_signal
;
447 struct ieee80211_if_ibss
{
448 struct timer_list timer
;
452 unsigned long last_scan_completed
;
463 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
466 struct ieee80211_channel
*channel
;
468 unsigned long ibss_join_req
;
469 /* probe response/beacon for IBSS */
470 struct sk_buff __rcu
*presp
;
474 IEEE80211_IBSS_MLME_SEARCH
,
475 IEEE80211_IBSS_MLME_JOINED
,
479 struct ieee80211_if_mesh
{
480 struct timer_list housekeeping_timer
;
481 struct timer_list mesh_path_timer
;
482 struct timer_list mesh_path_root_timer
;
484 unsigned long timers_running
;
486 unsigned long wrkq_flags
;
488 u8 mesh_id
[IEEE80211_MAX_MESH_ID_LEN
];
490 /* Active Path Selection Protocol Identifier */
492 /* Active Path Selection Metric Identifier */
494 /* Congestion Control Mode Identifier */
496 /* Synchronization Protocol Identifier */
498 /* Authentication Protocol Identifier */
500 /* Local mesh Sequence Number */
502 /* Last used PREQ ID */
505 /* Timestamp of last SN update */
506 unsigned long last_sn_update
;
507 /* Timestamp of last SN sent */
508 unsigned long last_preq
;
509 struct mesh_rmc
*rmc
;
510 spinlock_t mesh_preq_queue_lock
;
511 struct mesh_preq_queue preq_queue
;
513 struct mesh_stats mshstats
;
514 struct mesh_config mshcfg
;
516 bool accepting_plinks
;
521 IEEE80211_MESH_SEC_NONE
= 0x0,
522 IEEE80211_MESH_SEC_AUTHED
= 0x1,
523 IEEE80211_MESH_SEC_SECURED
= 0x2,
527 #ifdef CONFIG_MAC80211_MESH
528 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
529 do { (msh)->mshstats.name++; } while (0)
531 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
536 * enum ieee80211_sub_if_data_flags - virtual interface flags
538 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
539 * @IEEE80211_SDATA_PROMISC: interface is promisc
540 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
541 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
542 * associated stations and deliver multicast frames both
543 * back to wireless media and to the local net stack.
544 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
546 enum ieee80211_sub_if_data_flags
{
547 IEEE80211_SDATA_ALLMULTI
= BIT(0),
548 IEEE80211_SDATA_PROMISC
= BIT(1),
549 IEEE80211_SDATA_OPERATING_GMODE
= BIT(2),
550 IEEE80211_SDATA_DONT_BRIDGE_PACKETS
= BIT(3),
551 IEEE80211_SDATA_DISCONNECT_RESUME
= BIT(4),
555 * enum ieee80211_sdata_state_bits - virtual interface state bits
556 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
557 * mirrors netif_running() but is separate for interface type
558 * change handling while the interface is up
559 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
560 * mode, so queues are stopped
562 enum ieee80211_sdata_state_bits
{
564 SDATA_STATE_OFFCHANNEL
,
567 struct ieee80211_sub_if_data
{
568 struct list_head list
;
570 struct wireless_dev wdev
;
573 struct list_head key_list
;
575 /* count for keys needing tailroom space allocation */
576 int crypto_tx_tailroom_needed_cnt
;
578 struct net_device
*dev
;
579 struct ieee80211_local
*local
;
585 int drop_unencrypted
;
590 * keep track of whether the HT opmode (stored in
591 * vif.bss_info.ht_operation_mode) is valid.
593 bool ht_opmode_valid
;
595 /* to detect idle changes */
598 /* Fragment table for host-based reassembly */
599 struct ieee80211_fragment_entry fragments
[IEEE80211_FRAGMENT_MAX
];
600 unsigned int fragment_next
;
602 struct ieee80211_key __rcu
*keys
[NUM_DEFAULT_KEYS
+ NUM_DEFAULT_MGMT_KEYS
];
603 struct ieee80211_key __rcu
*default_unicast_key
;
604 struct ieee80211_key __rcu
*default_multicast_key
;
605 struct ieee80211_key __rcu
*default_mgmt_key
;
608 __be16 control_port_protocol
;
609 bool control_port_no_encrypt
;
611 struct ieee80211_tx_queue_params tx_conf
[IEEE80211_MAX_QUEUES
];
613 struct work_struct work
;
614 struct sk_buff_head skb_queue
;
616 bool arp_filter_state
;
619 * AP this belongs to: self in AP mode and
620 * corresponding AP in VLAN mode, NULL for
621 * all others (might be needed later in IBSS)
623 struct ieee80211_if_ap
*bss
;
625 /* bitmap of allowed (non-MCS) rate indexes for rate control */
626 u32 rc_rateidx_mask
[IEEE80211_NUM_BANDS
];
629 struct ieee80211_if_ap ap
;
630 struct ieee80211_if_wds wds
;
631 struct ieee80211_if_vlan vlan
;
632 struct ieee80211_if_managed mgd
;
633 struct ieee80211_if_ibss ibss
;
634 struct ieee80211_if_mesh mesh
;
638 #ifdef CONFIG_MAC80211_DEBUGFS
641 struct dentry
*subdir_stations
;
642 struct dentry
*default_unicast_key
;
643 struct dentry
*default_multicast_key
;
644 struct dentry
*default_mgmt_key
;
647 /* must be last, dynamically sized area in this! */
648 struct ieee80211_vif vif
;
652 struct ieee80211_sub_if_data
*vif_to_sdata(struct ieee80211_vif
*p
)
654 return container_of(p
, struct ieee80211_sub_if_data
, vif
);
657 enum sdata_queue_type
{
658 IEEE80211_SDATA_QUEUE_TYPE_FRAME
= 0,
659 IEEE80211_SDATA_QUEUE_AGG_START
= 1,
660 IEEE80211_SDATA_QUEUE_AGG_STOP
= 2,
664 IEEE80211_RX_MSG
= 1,
665 IEEE80211_TX_STATUS_MSG
= 2,
666 IEEE80211_EOSP_MSG
= 3,
669 struct skb_eosp_msg_data
{
670 u8 sta
[ETH_ALEN
], iface
[ETH_ALEN
];
673 enum queue_stop_reason
{
674 IEEE80211_QUEUE_STOP_REASON_DRIVER
,
675 IEEE80211_QUEUE_STOP_REASON_PS
,
676 IEEE80211_QUEUE_STOP_REASON_CSA
,
677 IEEE80211_QUEUE_STOP_REASON_AGGREGATION
,
678 IEEE80211_QUEUE_STOP_REASON_SUSPEND
,
679 IEEE80211_QUEUE_STOP_REASON_SKB_ADD
,
680 IEEE80211_QUEUE_STOP_REASON_CHTYPE_CHANGE
,
683 #ifdef CONFIG_MAC80211_LEDS
684 struct tpt_led_trigger
{
685 struct led_trigger trig
;
687 const struct ieee80211_tpt_blink
*blink_table
;
688 unsigned int blink_table_len
;
689 struct timer_list timer
;
690 unsigned long prev_traffic
;
691 unsigned long tx_bytes
, rx_bytes
;
692 unsigned int active
, want
;
698 * mac80211 scan flags - currently active scan mode
700 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
701 * well be on the operating channel
702 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
703 * determine if we are on the operating channel or not
704 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
705 * that the scan completed.
706 * @SCAN_ABORTED: Set for our scan work function when the driver reported
707 * a scan complete for an aborted scan.
717 * enum mac80211_scan_state - scan state machine states
719 * @SCAN_DECISION: Main entry point to the scan state machine, this state
720 * determines if we should keep on scanning or switch back to the
722 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
723 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
724 * @SCAN_LEAVE_OPER_CHANNEL: Leave the operating channel, notify the AP
725 * about us leaving the channel and stop all associated STA interfaces
726 * @SCAN_ENTER_OPER_CHANNEL: Enter the operating channel again, notify the
727 * AP about us being back and restart all associated STA interfaces
729 enum mac80211_scan_state
{
733 SCAN_LEAVE_OPER_CHANNEL
,
734 SCAN_ENTER_OPER_CHANNEL
,
737 struct ieee80211_local
{
738 /* embed the driver visible part.
739 * don't cast (use the static inlines below), but we keep
740 * it first anyway so they become a no-op */
741 struct ieee80211_hw hw
;
743 const struct ieee80211_ops
*ops
;
746 * work stuff, potentially off-channel (in the future)
748 struct list_head work_list
;
749 struct timer_list work_timer
;
750 struct work_struct work_work
;
751 struct sk_buff_head work_skb_queue
;
754 * private workqueue to mac80211. mac80211 makes this accessible
755 * via ieee80211_queue_work()
757 struct workqueue_struct
*workqueue
;
759 unsigned long queue_stop_reasons
[IEEE80211_MAX_QUEUES
];
760 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
761 spinlock_t queue_stop_reason_lock
;
764 int monitors
, cooked_mntrs
;
765 /* number of interfaces with corresponding FIF_ flags */
766 int fif_fcsfail
, fif_plcpfail
, fif_control
, fif_other_bss
, fif_pspoll
,
769 unsigned int filter_flags
; /* FIF_* */
771 bool wiphy_ciphers_allocated
;
773 /* protects the aggregated multicast list and filter calls */
774 spinlock_t filter_lock
;
776 /* used for uploading changed mc list */
777 struct work_struct reconfig_filter
;
779 /* used to reconfigure hardware SM PS */
780 struct work_struct recalc_smps
;
782 /* aggregated multicast list */
783 struct netdev_hw_addr_list mc_list
;
785 bool tim_in_locked_section
; /* see ieee80211_beacon_get() */
788 * suspended is true if we finished all the suspend _and_ we have
789 * not yet come up from resume. This is to be used by mac80211
790 * to ensure driver sanity during suspend and mac80211's own
791 * sanity. It can eventually be used for WoW as well.
796 * Resuming is true while suspended, but when we're reprogramming the
797 * hardware -- at that time it's allowed to use ieee80211_queue_work()
798 * again even though some other parts of the stack are still suspended
799 * and we still drop received frames to avoid waking the stack.
804 * quiescing is true during the suspend process _only_ to
805 * ease timer cancelling etc.
809 /* device is started */
812 /* wowlan is enabled -- don't reconfig on resume */
815 int tx_headroom
; /* required headroom for hardware/radiotap */
817 /* Tasklet and skb queue to process calls from IRQ mode. All frames
818 * added to skb_queue will be processed, but frames in
819 * skb_queue_unreliable may be dropped if the total length of these
820 * queues increases over the limit. */
821 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
822 struct tasklet_struct tasklet
;
823 struct sk_buff_head skb_queue
;
824 struct sk_buff_head skb_queue_unreliable
;
827 * Internal FIFO queue which is shared between multiple rx path
828 * stages. Its main task is to provide a serialization mechanism,
829 * so all rx handlers can enjoy having exclusive access to their
830 * private data structures.
832 struct sk_buff_head rx_skb_queue
;
833 bool running_rx_handler
; /* protected by rx_skb_queue.lock */
837 * The mutex only protects the list and counter,
838 * reads are done in RCU.
839 * Additionally, the lock protects the hash table,
840 * the pending list and each BSS's TIM bitmap.
842 struct mutex sta_mtx
;
844 unsigned long num_sta
;
845 struct list_head sta_list
, sta_pending_list
;
846 struct sta_info __rcu
*sta_hash
[STA_HASH_SIZE
];
847 struct timer_list sta_cleanup
;
848 struct work_struct sta_finish_work
;
851 struct sk_buff_head pending
[IEEE80211_MAX_QUEUES
];
852 struct tasklet_struct tx_pending_tasklet
;
854 atomic_t agg_queue_stop
[IEEE80211_MAX_QUEUES
];
856 /* number of interfaces with corresponding IFF_ flags */
857 atomic_t iff_allmultis
, iff_promiscs
;
859 struct rate_control_ref
*rate_ctrl
;
861 struct crypto_cipher
*wep_tx_tfm
;
862 struct crypto_cipher
*wep_rx_tfm
;
866 struct list_head interfaces
;
867 struct mutex iflist_mtx
;
870 * Key mutex, protects sdata's key_list and sta_info's
871 * key pointers (write access, they're RCU.)
873 struct mutex key_mtx
;
875 /* mutex for scan and work locking */
878 /* Scanning and BSS list */
879 unsigned long scanning
;
880 struct cfg80211_ssid scan_ssid
;
881 struct cfg80211_scan_request
*int_scan_req
;
882 struct cfg80211_scan_request
*scan_req
, *hw_scan_req
;
883 struct ieee80211_channel
*scan_channel
;
884 enum ieee80211_band hw_scan_band
;
885 int scan_channel_idx
;
889 struct ieee80211_sched_scan_ies sched_scan_ies
;
890 struct work_struct sched_scan_stopped_work
;
892 unsigned long leave_oper_channel_time
;
893 enum mac80211_scan_state next_scan_state
;
894 struct delayed_work scan_work
;
895 struct ieee80211_sub_if_data
*scan_sdata
;
896 enum nl80211_channel_type _oper_channel_type
;
897 struct ieee80211_channel
*oper_channel
, *csa_channel
;
899 /* Temporary remain-on-channel for off-channel operations */
900 struct ieee80211_channel
*tmp_channel
;
901 enum nl80211_channel_type tmp_channel_type
;
904 /* dot11CountersTable */
905 u32 dot11TransmittedFragmentCount
;
906 u32 dot11MulticastTransmittedFrameCount
;
907 u32 dot11FailedCount
;
909 u32 dot11MultipleRetryCount
;
910 u32 dot11FrameDuplicateCount
;
911 u32 dot11ReceivedFragmentCount
;
912 u32 dot11MulticastReceivedFrameCount
;
913 u32 dot11TransmittedFrameCount
;
915 #ifdef CONFIG_MAC80211_LEDS
916 int tx_led_counter
, rx_led_counter
;
917 struct led_trigger
*tx_led
, *rx_led
, *assoc_led
, *radio_led
;
918 struct tpt_led_trigger
*tpt_led_trigger
;
919 char tx_led_name
[32], rx_led_name
[32],
920 assoc_led_name
[32], radio_led_name
[32];
923 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
924 /* TX/RX handler statistics */
925 unsigned int tx_handlers_drop
;
926 unsigned int tx_handlers_queued
;
927 unsigned int tx_handlers_drop_unencrypted
;
928 unsigned int tx_handlers_drop_fragment
;
929 unsigned int tx_handlers_drop_wep
;
930 unsigned int tx_handlers_drop_not_assoc
;
931 unsigned int tx_handlers_drop_unauth_port
;
932 unsigned int rx_handlers_drop
;
933 unsigned int rx_handlers_queued
;
934 unsigned int rx_handlers_drop_nullfunc
;
935 unsigned int rx_handlers_drop_defrag
;
936 unsigned int rx_handlers_drop_short
;
937 unsigned int rx_handlers_drop_passive_scan
;
938 unsigned int tx_expand_skb_head
;
939 unsigned int tx_expand_skb_head_cloned
;
940 unsigned int rx_expand_skb_head
;
941 unsigned int rx_expand_skb_head2
;
942 unsigned int rx_handlers_fragments
;
943 unsigned int tx_status_drop
;
944 #define I802_DEBUG_INC(c) (c)++
945 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
946 #define I802_DEBUG_INC(c) do { } while (0)
947 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
950 int total_ps_buffered
; /* total number of all buffered unicast and
951 * multicast packets for power saving stations
953 int wifi_wme_noack_test
;
954 unsigned int wmm_acm
; /* bit field of ACM bits (BIT(802.1D tag)) */
957 * Bitmask of enabled u-apsd queues,
958 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
961 unsigned int uapsd_queues
;
964 * Maximum number of buffered frames AP can deliver during a
965 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
966 * Needs a new association to take effect.
968 unsigned int uapsd_max_sp_len
;
971 bool offchannel_ps_enabled
;
973 * PS can only be enabled when we have exactly one managed
974 * interface (and monitors) in PS, this then points there.
976 struct ieee80211_sub_if_data
*ps_sdata
;
977 struct work_struct dynamic_ps_enable_work
;
978 struct work_struct dynamic_ps_disable_work
;
979 struct timer_list dynamic_ps_timer
;
980 struct notifier_block network_latency_notifier
;
981 struct notifier_block ifa_notifier
;
984 * The dynamic ps timeout configured from user space via WEXT -
985 * this will override whatever chosen by mac80211 internally.
987 int dynamic_ps_forced_timeout
;
988 int dynamic_ps_user_timeout
;
989 bool disable_dynamic_ps
;
991 int user_power_level
; /* in dBm */
992 int power_constr_level
; /* in dBm */
994 enum ieee80211_smps_mode smps_mode
;
996 struct work_struct restart_work
;
998 #ifdef CONFIG_MAC80211_DEBUGFS
999 struct local_debugfsdentries
{
1000 struct dentry
*rcdir
;
1001 struct dentry
*keys
;
1005 struct ieee80211_channel
*hw_roc_channel
;
1006 struct net_device
*hw_roc_dev
;
1007 struct sk_buff
*hw_roc_skb
, *hw_roc_skb_for_status
;
1008 struct work_struct hw_roc_start
, hw_roc_done
;
1009 enum nl80211_channel_type hw_roc_channel_type
;
1010 unsigned int hw_roc_duration
;
1014 /* dummy netdev for use w/ NAPI */
1015 struct net_device napi_dev
;
1017 struct napi_struct napi
;
1020 static inline struct ieee80211_sub_if_data
*
1021 IEEE80211_DEV_TO_SUB_IF(struct net_device
*dev
)
1023 return netdev_priv(dev
);
1026 /* this struct represents 802.11n's RA/TID combination */
1027 struct ieee80211_ra_tid
{
1032 static inline struct ieee80211_local
*hw_to_local(
1033 struct ieee80211_hw
*hw
)
1035 return container_of(hw
, struct ieee80211_local
, hw
);
1038 static inline struct ieee80211_hw
*local_to_hw(
1039 struct ieee80211_local
*local
)
1045 static inline int ieee80211_bssid_match(const u8
*raddr
, const u8
*addr
)
1047 return compare_ether_addr(raddr
, addr
) == 0 ||
1048 is_broadcast_ether_addr(raddr
);
1052 int ieee80211_hw_config(struct ieee80211_local
*local
, u32 changed
);
1053 void ieee80211_tx_set_protected(struct ieee80211_tx_data
*tx
);
1054 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data
*sdata
,
1056 void ieee80211_configure_filter(struct ieee80211_local
*local
);
1057 u32
ieee80211_reset_erp_info(struct ieee80211_sub_if_data
*sdata
);
1060 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
1061 int ieee80211_mgd_auth(struct ieee80211_sub_if_data
*sdata
,
1062 struct cfg80211_auth_request
*req
);
1063 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data
*sdata
,
1064 struct cfg80211_assoc_request
*req
);
1065 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data
*sdata
,
1066 struct cfg80211_deauth_request
*req
,
1068 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data
*sdata
,
1069 struct cfg80211_disassoc_request
*req
,
1071 void ieee80211_send_pspoll(struct ieee80211_local
*local
,
1072 struct ieee80211_sub_if_data
*sdata
);
1073 void ieee80211_recalc_ps(struct ieee80211_local
*local
, s32 latency
);
1074 int ieee80211_max_network_latency(struct notifier_block
*nb
,
1075 unsigned long data
, void *dummy
);
1076 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data
*sdata
);
1077 void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data
*sdata
,
1078 struct ieee80211_channel_sw_ie
*sw_elem
,
1079 struct ieee80211_bss
*bss
,
1081 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data
*sdata
);
1082 void ieee80211_sta_restart(struct ieee80211_sub_if_data
*sdata
);
1083 void ieee80211_sta_work(struct ieee80211_sub_if_data
*sdata
);
1084 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1085 struct sk_buff
*skb
);
1086 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data
*sdata
);
1087 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data
*sdata
);
1090 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local
*local
);
1091 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
1092 struct sta_info
*ieee80211_ibss_add_sta(struct ieee80211_sub_if_data
*sdata
,
1093 u8
*bssid
, u8
*addr
, u32 supp_rates
,
1095 int ieee80211_ibss_join(struct ieee80211_sub_if_data
*sdata
,
1096 struct cfg80211_ibss_params
*params
);
1097 int ieee80211_ibss_leave(struct ieee80211_sub_if_data
*sdata
);
1098 void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data
*sdata
);
1099 void ieee80211_ibss_restart(struct ieee80211_sub_if_data
*sdata
);
1100 void ieee80211_ibss_work(struct ieee80211_sub_if_data
*sdata
);
1101 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1102 struct sk_buff
*skb
);
1105 void ieee80211_mesh_work(struct ieee80211_sub_if_data
*sdata
);
1106 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1107 struct sk_buff
*skb
);
1109 /* scan/BSS handling */
1110 void ieee80211_scan_work(struct work_struct
*work
);
1111 int ieee80211_request_internal_scan(struct ieee80211_sub_if_data
*sdata
,
1112 const u8
*ssid
, u8 ssid_len
,
1113 struct ieee80211_channel
*chan
);
1114 int ieee80211_request_scan(struct ieee80211_sub_if_data
*sdata
,
1115 struct cfg80211_scan_request
*req
);
1116 void ieee80211_scan_cancel(struct ieee80211_local
*local
);
1118 ieee80211_scan_rx(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
);
1120 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local
*local
);
1121 struct ieee80211_bss
*
1122 ieee80211_bss_info_update(struct ieee80211_local
*local
,
1123 struct ieee80211_rx_status
*rx_status
,
1124 struct ieee80211_mgmt
*mgmt
,
1126 struct ieee802_11_elems
*elems
,
1127 struct ieee80211_channel
*channel
,
1129 struct ieee80211_bss
*
1130 ieee80211_rx_bss_get(struct ieee80211_local
*local
, u8
*bssid
, int freq
,
1131 u8
*ssid
, u8 ssid_len
);
1132 void ieee80211_rx_bss_put(struct ieee80211_local
*local
,
1133 struct ieee80211_bss
*bss
);
1135 /* scheduled scan handling */
1136 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data
*sdata
,
1137 struct cfg80211_sched_scan_request
*req
);
1138 int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data
*sdata
);
1139 void ieee80211_sched_scan_stopped_work(struct work_struct
*work
);
1141 /* off-channel helpers */
1142 bool ieee80211_cfg_on_oper_channel(struct ieee80211_local
*local
);
1143 void ieee80211_offchannel_enable_all_ps(struct ieee80211_local
*local
,
1145 void ieee80211_offchannel_stop_vifs(struct ieee80211_local
*local
,
1146 bool offchannel_ps_enable
);
1147 void ieee80211_offchannel_return(struct ieee80211_local
*local
,
1148 bool enable_beaconing
,
1149 bool offchannel_ps_disable
);
1150 void ieee80211_hw_roc_setup(struct ieee80211_local
*local
);
1152 /* interface handling */
1153 int ieee80211_iface_init(void);
1154 void ieee80211_iface_exit(void);
1155 int ieee80211_if_add(struct ieee80211_local
*local
, const char *name
,
1156 struct net_device
**new_dev
, enum nl80211_iftype type
,
1157 struct vif_params
*params
);
1158 int ieee80211_if_change_type(struct ieee80211_sub_if_data
*sdata
,
1159 enum nl80211_iftype type
);
1160 void ieee80211_if_remove(struct ieee80211_sub_if_data
*sdata
);
1161 void ieee80211_remove_interfaces(struct ieee80211_local
*local
);
1162 u32
__ieee80211_recalc_idle(struct ieee80211_local
*local
);
1163 void ieee80211_recalc_idle(struct ieee80211_local
*local
);
1164 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data
*sdata
,
1167 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data
*sdata
)
1169 return test_bit(SDATA_STATE_RUNNING
, &sdata
->state
);
1173 void ieee80211_clear_tx_pending(struct ieee80211_local
*local
);
1174 void ieee80211_tx_pending(unsigned long data
);
1175 netdev_tx_t
ieee80211_monitor_start_xmit(struct sk_buff
*skb
,
1176 struct net_device
*dev
);
1177 netdev_tx_t
ieee80211_subif_start_xmit(struct sk_buff
*skb
,
1178 struct net_device
*dev
);
1181 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_supported_band
*sband
,
1182 struct ieee80211_ht_cap
*ht_cap_ie
,
1183 struct ieee80211_sta_ht_cap
*ht_cap
);
1184 void ieee80211_send_delba(struct ieee80211_sub_if_data
*sdata
,
1185 const u8
*da
, u16 tid
,
1186 u16 initiator
, u16 reason_code
);
1187 int ieee80211_send_smps_action(struct ieee80211_sub_if_data
*sdata
,
1188 enum ieee80211_smps_mode smps
, const u8
*da
,
1190 void ieee80211_request_smps_work(struct work_struct
*work
);
1192 void ___ieee80211_stop_rx_ba_session(struct sta_info
*sta
, u16 tid
,
1193 u16 initiator
, u16 reason
, bool stop
);
1194 void __ieee80211_stop_rx_ba_session(struct sta_info
*sta
, u16 tid
,
1195 u16 initiator
, u16 reason
, bool stop
);
1196 void ieee80211_sta_tear_down_BA_sessions(struct sta_info
*sta
, bool tx
);
1197 void ieee80211_process_delba(struct ieee80211_sub_if_data
*sdata
,
1198 struct sta_info
*sta
,
1199 struct ieee80211_mgmt
*mgmt
, size_t len
);
1200 void ieee80211_process_addba_resp(struct ieee80211_local
*local
,
1201 struct sta_info
*sta
,
1202 struct ieee80211_mgmt
*mgmt
,
1204 void ieee80211_process_addba_request(struct ieee80211_local
*local
,
1205 struct sta_info
*sta
,
1206 struct ieee80211_mgmt
*mgmt
,
1209 int __ieee80211_stop_tx_ba_session(struct sta_info
*sta
, u16 tid
,
1210 enum ieee80211_back_parties initiator
,
1212 int ___ieee80211_stop_tx_ba_session(struct sta_info
*sta
, u16 tid
,
1213 enum ieee80211_back_parties initiator
,
1215 void ieee80211_start_tx_ba_cb(struct ieee80211_vif
*vif
, u8
*ra
, u16 tid
);
1216 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif
*vif
, u8
*ra
, u8 tid
);
1217 void ieee80211_ba_session_work(struct work_struct
*work
);
1218 void ieee80211_tx_ba_session_handle_start(struct sta_info
*sta
, int tid
);
1219 void ieee80211_release_reorder_timeout(struct sta_info
*sta
, int tid
);
1221 /* Spectrum management */
1222 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data
*sdata
,
1223 struct ieee80211_mgmt
*mgmt
,
1226 /* Suspend/resume and hw reconfiguration */
1227 int ieee80211_reconfig(struct ieee80211_local
*local
);
1228 void ieee80211_stop_device(struct ieee80211_local
*local
);
1231 int __ieee80211_suspend(struct ieee80211_hw
*hw
,
1232 struct cfg80211_wowlan
*wowlan
);
1234 static inline int __ieee80211_resume(struct ieee80211_hw
*hw
)
1236 struct ieee80211_local
*local
= hw_to_local(hw
);
1238 WARN(test_bit(SCAN_HW_SCANNING
, &local
->scanning
),
1239 "%s: resume with hardware scan still in progress\n",
1240 wiphy_name(hw
->wiphy
));
1242 return ieee80211_reconfig(hw_to_local(hw
));
1245 static inline int __ieee80211_suspend(struct ieee80211_hw
*hw
,
1246 struct cfg80211_wowlan
*wowlan
)
1251 static inline int __ieee80211_resume(struct ieee80211_hw
*hw
)
1257 /* utility functions/constants */
1258 extern void *mac80211_wiphy_privid
; /* for wiphy privid */
1259 u8
*ieee80211_get_bssid(struct ieee80211_hdr
*hdr
, size_t len
,
1260 enum nl80211_iftype type
);
1261 int ieee80211_frame_duration(struct ieee80211_local
*local
, size_t len
,
1262 int rate
, int erp
, int short_preamble
);
1263 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data
*sdata
, int keyidx
,
1264 struct ieee80211_hdr
*hdr
, const u8
*tsc
,
1266 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data
*sdata
);
1267 void ieee80211_xmit(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
);
1268 void ieee80211_tx_skb(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
);
1269 void ieee802_11_parse_elems(u8
*start
, size_t len
,
1270 struct ieee802_11_elems
*elems
);
1271 u32
ieee802_11_parse_elems_crc(u8
*start
, size_t len
,
1272 struct ieee802_11_elems
*elems
,
1273 u64 filter
, u32 crc
);
1274 u32
ieee80211_mandatory_rates(struct ieee80211_local
*local
,
1275 enum ieee80211_band band
);
1277 void ieee80211_dynamic_ps_enable_work(struct work_struct
*work
);
1278 void ieee80211_dynamic_ps_disable_work(struct work_struct
*work
);
1279 void ieee80211_dynamic_ps_timer(unsigned long data
);
1280 void ieee80211_send_nullfunc(struct ieee80211_local
*local
,
1281 struct ieee80211_sub_if_data
*sdata
,
1283 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data
*sdata
,
1284 struct ieee80211_hdr
*hdr
);
1285 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data
*sdata
,
1286 struct ieee80211_hdr
*hdr
, bool ack
);
1287 void ieee80211_beacon_connection_loss_work(struct work_struct
*work
);
1289 void ieee80211_wake_queues_by_reason(struct ieee80211_hw
*hw
,
1290 enum queue_stop_reason reason
);
1291 void ieee80211_stop_queues_by_reason(struct ieee80211_hw
*hw
,
1292 enum queue_stop_reason reason
);
1293 void ieee80211_wake_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1294 enum queue_stop_reason reason
);
1295 void ieee80211_stop_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1296 enum queue_stop_reason reason
);
1297 void ieee80211_add_pending_skb(struct ieee80211_local
*local
,
1298 struct sk_buff
*skb
);
1299 void ieee80211_add_pending_skbs(struct ieee80211_local
*local
,
1300 struct sk_buff_head
*skbs
);
1301 void ieee80211_add_pending_skbs_fn(struct ieee80211_local
*local
,
1302 struct sk_buff_head
*skbs
,
1303 void (*fn
)(void *data
), void *data
);
1305 void ieee80211_send_auth(struct ieee80211_sub_if_data
*sdata
,
1306 u16 transaction
, u16 auth_alg
,
1307 u8
*extra
, size_t extra_len
, const u8
*bssid
,
1308 const u8
*key
, u8 key_len
, u8 key_idx
);
1309 int ieee80211_build_preq_ies(struct ieee80211_local
*local
, u8
*buffer
,
1310 const u8
*ie
, size_t ie_len
,
1311 enum ieee80211_band band
, u32 rate_mask
,
1313 struct sk_buff
*ieee80211_build_probe_req(struct ieee80211_sub_if_data
*sdata
,
1314 u8
*dst
, u32 ratemask
,
1315 const u8
*ssid
, size_t ssid_len
,
1316 const u8
*ie
, size_t ie_len
,
1318 void ieee80211_send_probe_req(struct ieee80211_sub_if_data
*sdata
, u8
*dst
,
1319 const u8
*ssid
, size_t ssid_len
,
1320 const u8
*ie
, size_t ie_len
,
1321 u32 ratemask
, bool directed
, bool no_cck
);
1323 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data
*sdata
,
1324 const size_t supp_rates_len
,
1325 const u8
*supp_rates
);
1326 u32
ieee80211_sta_get_rates(struct ieee80211_local
*local
,
1327 struct ieee802_11_elems
*elems
,
1328 enum ieee80211_band band
);
1329 int __ieee80211_request_smps(struct ieee80211_sub_if_data
*sdata
,
1330 enum ieee80211_smps_mode smps_mode
);
1331 void ieee80211_recalc_smps(struct ieee80211_local
*local
);
1333 size_t ieee80211_ie_split(const u8
*ies
, size_t ielen
,
1334 const u8
*ids
, int n_ids
, size_t offset
);
1335 size_t ieee80211_ie_split_vendor(const u8
*ies
, size_t ielen
, size_t offset
);
1337 /* internal work items */
1338 void ieee80211_work_init(struct ieee80211_local
*local
);
1339 void ieee80211_add_work(struct ieee80211_work
*wk
);
1340 void free_work(struct ieee80211_work
*wk
);
1341 void ieee80211_work_purge(struct ieee80211_sub_if_data
*sdata
);
1342 ieee80211_rx_result
ieee80211_work_rx_mgmt(struct ieee80211_sub_if_data
*sdata
,
1343 struct sk_buff
*skb
);
1344 int ieee80211_wk_remain_on_channel(struct ieee80211_sub_if_data
*sdata
,
1345 struct ieee80211_channel
*chan
,
1346 enum nl80211_channel_type channel_type
,
1347 unsigned int duration
, u64
*cookie
);
1348 int ieee80211_wk_cancel_remain_on_channel(
1349 struct ieee80211_sub_if_data
*sdata
, u64 cookie
);
1351 /* channel management */
1352 enum ieee80211_chan_mode
{
1353 CHAN_MODE_UNDEFINED
,
1358 enum ieee80211_chan_mode
1359 ieee80211_get_channel_mode(struct ieee80211_local
*local
,
1360 struct ieee80211_sub_if_data
*ignore
);
1361 bool ieee80211_set_channel_type(struct ieee80211_local
*local
,
1362 struct ieee80211_sub_if_data
*sdata
,
1363 enum nl80211_channel_type chantype
);
1365 #ifdef CONFIG_MAC80211_NOINLINE
1366 #define debug_noinline noinline
1368 #define debug_noinline
1371 #endif /* IEEE80211_I_H */