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>
6 * Copyright 2013-2015 Intel Mobile Communications GmbH
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
16 #include <linux/kernel.h>
17 #include <linux/device.h>
18 #include <linux/if_ether.h>
19 #include <linux/interrupt.h>
20 #include <linux/list.h>
21 #include <linux/netdevice.h>
22 #include <linux/skbuff.h>
23 #include <linux/workqueue.h>
24 #include <linux/types.h>
25 #include <linux/spinlock.h>
26 #include <linux/etherdevice.h>
27 #include <linux/leds.h>
28 #include <linux/idr.h>
29 #include <linux/rhashtable.h>
30 #include <net/ieee80211_radiotap.h>
31 #include <net/cfg80211.h>
32 #include <net/mac80211.h>
38 extern const struct cfg80211_ops mac80211_config_ops
;
40 struct ieee80211_local
;
42 /* Maximum number of broadcast/multicast frames to buffer when some of the
43 * associated stations are using power saving. */
44 #define AP_MAX_BC_BUFFER 128
46 /* Maximum number of frames buffered to all STAs, including multicast frames.
47 * Note: increasing this limit increases the potential memory requirement. Each
48 * frame can be up to about 2 kB long. */
49 #define TOTAL_MAX_TX_BUFFER 512
51 /* Required encryption head and tailroom */
52 #define IEEE80211_ENCRYPT_HEADROOM 8
53 #define IEEE80211_ENCRYPT_TAILROOM 18
55 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
56 * reception of at least three fragmented frames. This limit can be increased
57 * by changing this define, at the cost of slower frame reassembly and
58 * increased memory use (about 2 kB of RAM per entry). */
59 #define IEEE80211_FRAGMENT_MAX 4
61 /* power level hasn't been configured (or set to automatic) */
62 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN
65 * Some APs experience problems when working with U-APSD. Decreasing the
66 * probability of that happening by using legacy mode for all ACs but VO isn't
69 * Cisco 4410N originally forced us to enable VO by default only because it
70 * treated non-VO ACs as legacy.
72 * However some APs (notably Netgear R7000) silently reclassify packets to
73 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval
74 * clients would never see some frames (e.g. ARP responses) or would fetch them
75 * accidentally after a long time.
77 * It makes little sense to enable u-APSD queues by default because it needs
78 * userspace applications to be aware of it to actually take advantage of the
79 * possible additional powersavings. Implicitly depending on driver autotrigger
80 * frame support doesn't make much sense.
82 #define IEEE80211_DEFAULT_UAPSD_QUEUES 0
84 #define IEEE80211_DEFAULT_MAX_SP_LEN \
85 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
87 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
89 struct ieee80211_fragment_entry
{
90 struct sk_buff_head skb_list
;
91 unsigned long first_frag_time
;
96 bool check_sequential_pn
; /* needed for CCMP/GCMP */
97 u8 last_pn
[6]; /* PN of the last fragment if CCMP was used */
101 struct ieee80211_bss
{
102 u32 device_ts_beacon
, device_ts_presp
;
105 bool uapsd_supported
;
107 #define IEEE80211_MAX_SUPP_RATES 32
108 u8 supp_rates
[IEEE80211_MAX_SUPP_RATES
];
109 size_t supp_rates_len
;
110 struct ieee80211_rate
*beacon_rate
;
113 * During association, we save an ERP value from a probe response so
114 * that we can feed ERP info to the driver when handling the
115 * association completes. these fields probably won't be up-to-date
116 * otherwise, you probably don't want to use them.
121 /* Keep track of the corruption of the last beacon/probe response. */
124 /* Keep track of what bits of information we have valid info for. */
129 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
130 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
131 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
133 * These are bss flags that are attached to a bss in the
134 * @corrupt_data field of &struct ieee80211_bss.
136 enum ieee80211_bss_corrupt_data_flags
{
137 IEEE80211_BSS_CORRUPT_BEACON
= BIT(0),
138 IEEE80211_BSS_CORRUPT_PROBE_RESP
= BIT(1)
142 * enum ieee80211_valid_data_flags - BSS valid data flags
143 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
144 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
145 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
147 * These are bss flags that are attached to a bss in the
148 * @valid_data field of &struct ieee80211_bss. They show which parts
149 * of the data structure were received as a result of an un-corrupted
150 * beacon/probe response.
152 enum ieee80211_bss_valid_data_flags
{
153 IEEE80211_BSS_VALID_WMM
= BIT(1),
154 IEEE80211_BSS_VALID_RATES
= BIT(2),
155 IEEE80211_BSS_VALID_ERP
= BIT(3)
158 typedef unsigned __bitwise__ ieee80211_tx_result
;
159 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
160 #define TX_DROP ((__force ieee80211_tx_result) 1u)
161 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
163 #define IEEE80211_TX_UNICAST BIT(1)
164 #define IEEE80211_TX_PS_BUFFERED BIT(2)
166 struct ieee80211_tx_data
{
168 struct sk_buff_head skbs
;
169 struct ieee80211_local
*local
;
170 struct ieee80211_sub_if_data
*sdata
;
171 struct sta_info
*sta
;
172 struct ieee80211_key
*key
;
173 struct ieee80211_tx_rate rate
;
179 typedef unsigned __bitwise__ ieee80211_rx_result
;
180 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
181 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
182 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
183 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
186 * enum ieee80211_packet_rx_flags - packet RX flags
187 * @IEEE80211_RX_AMSDU: a-MSDU packet
188 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
189 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
191 * These are per-frame flags that are attached to a frame in the
192 * @rx_flags field of &struct ieee80211_rx_status.
194 enum ieee80211_packet_rx_flags
{
195 IEEE80211_RX_AMSDU
= BIT(3),
196 IEEE80211_RX_MALFORMED_ACTION_FRM
= BIT(4),
197 IEEE80211_RX_DEFERRED_RELEASE
= BIT(5),
201 * enum ieee80211_rx_flags - RX data flags
203 * @IEEE80211_RX_CMNTR: received on cooked monitor already
204 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
205 * to cfg80211_report_obss_beacon().
207 * These flags are used across handling multiple interfaces
208 * for a single frame.
210 enum ieee80211_rx_flags
{
211 IEEE80211_RX_CMNTR
= BIT(0),
212 IEEE80211_RX_BEACON_REPORTED
= BIT(1),
215 struct ieee80211_rx_data
{
216 struct napi_struct
*napi
;
218 struct ieee80211_local
*local
;
219 struct ieee80211_sub_if_data
*sdata
;
220 struct sta_info
*sta
;
221 struct ieee80211_key
*key
;
226 * Index into sequence numbers array, 0..16
227 * since the last (16) is used for non-QoS,
228 * will be 16 on non-QoS frames.
233 * Index into the security IV/PN arrays, 0..16
234 * since the last (16) is used for CCMP-encrypted
235 * management frames, will be set to 16 on mgmt
236 * frames and 0 on non-QoS frames.
244 struct ieee80211_csa_settings
{
245 const u16
*counter_offsets_beacon
;
246 const u16
*counter_offsets_presp
;
248 int n_counter_offsets_beacon
;
249 int n_counter_offsets_presp
;
256 int head_len
, tail_len
;
257 struct ieee80211_meshconf_ie
*meshconf
;
258 u16 csa_counter_offsets
[IEEE80211_MAX_CSA_COUNTERS_NUM
];
259 u8 csa_current_counter
;
260 struct rcu_head rcu_head
;
264 struct rcu_head rcu_head
;
266 u16 csa_counter_offsets
[IEEE80211_MAX_CSA_COUNTERS_NUM
];
271 /* yes, this looks ugly, but guarantees that we can later use
273 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
274 u8 tim
[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID
+ 1)]
275 __aligned(__alignof__(unsigned long));
276 struct sk_buff_head bc_buf
;
277 atomic_t num_sta_ps
; /* number of stations in PS mode */
282 struct ieee80211_if_ap
{
283 struct beacon_data __rcu
*beacon
;
284 struct probe_resp __rcu
*probe_resp
;
286 /* to be used after channel switch. */
287 struct cfg80211_beacon_data
*next_beacon
;
288 struct list_head vlans
; /* write-protected with RTNL and local->mtx */
291 atomic_t num_mcast_sta
; /* number of stations receiving multicast */
292 enum ieee80211_smps_mode req_smps
, /* requested smps mode */
293 driver_smps_mode
; /* smps mode request */
295 struct work_struct request_smps_work
;
298 struct ieee80211_if_wds
{
299 struct sta_info
*sta
;
300 u8 remote_addr
[ETH_ALEN
];
303 struct ieee80211_if_vlan
{
304 struct list_head list
; /* write-protected with RTNL and local->mtx */
306 /* used for all tx if the VLAN is configured to 4-addr mode */
307 struct sta_info __rcu
*sta
;
311 __u32 fwded_mcast
; /* Mesh forwarded multicast frames */
312 __u32 fwded_unicast
; /* Mesh forwarded unicast frames */
313 __u32 fwded_frames
; /* Mesh total forwarded frames */
314 __u32 dropped_frames_ttl
; /* Not transmitted since mesh_ttl == 0*/
315 __u32 dropped_frames_no_route
; /* Not transmitted, no route found */
316 __u32 dropped_frames_congestion
;/* Not forwarded due to congestion */
319 #define PREQ_Q_F_START 0x1
320 #define PREQ_Q_F_REFRESH 0x2
321 struct mesh_preq_queue
{
322 struct list_head list
;
327 struct ieee80211_roc_work
{
328 struct list_head list
;
330 struct ieee80211_sub_if_data
*sdata
;
332 struct ieee80211_channel
*chan
;
334 bool started
, abort
, hw_begun
, notified
;
337 unsigned long start_time
;
339 u32 duration
, req_duration
;
340 struct sk_buff
*frame
;
341 u64 cookie
, mgmt_tx_cookie
;
342 enum ieee80211_roc_type type
;
345 /* flags used in struct ieee80211_if_managed.flags */
346 enum ieee80211_sta_flags
{
347 IEEE80211_STA_CONNECTION_POLL
= BIT(1),
348 IEEE80211_STA_CONTROL_PORT
= BIT(2),
349 IEEE80211_STA_DISABLE_HT
= BIT(4),
350 IEEE80211_STA_MFP_ENABLED
= BIT(6),
351 IEEE80211_STA_UAPSD_ENABLED
= BIT(7),
352 IEEE80211_STA_NULLFUNC_ACKED
= BIT(8),
353 IEEE80211_STA_RESET_SIGNAL_AVE
= BIT(9),
354 IEEE80211_STA_DISABLE_40MHZ
= BIT(10),
355 IEEE80211_STA_DISABLE_VHT
= BIT(11),
356 IEEE80211_STA_DISABLE_80P80MHZ
= BIT(12),
357 IEEE80211_STA_DISABLE_160MHZ
= BIT(13),
358 IEEE80211_STA_DISABLE_WMM
= BIT(14),
359 IEEE80211_STA_ENABLE_RRM
= BIT(15),
362 struct ieee80211_mgd_auth_data
{
363 struct cfg80211_bss
*bss
;
364 unsigned long timeout
;
366 u16 algorithm
, expected_transaction
;
368 u8 key
[WLAN_KEY_LEN_WEP104
];
371 bool timeout_started
;
373 u16 sae_trans
, sae_status
;
378 struct ieee80211_mgd_assoc_data
{
379 struct cfg80211_bss
*bss
;
380 const u8
*supp_rates
;
382 unsigned long timeout
;
386 u8 prev_bssid
[ETH_ALEN
];
387 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
393 bool timeout_started
;
397 struct ieee80211_vht_cap ap_vht_cap
;
403 struct ieee80211_sta_tx_tspec
{
404 /* timestamp of the first packet in the time slice */
405 unsigned long time_slice_start
;
407 u32 admitted_time
; /* in usecs, unlike over the air */
409 s8 up
; /* signed to be able to invalidate with -1 during teardown */
411 /* consumed TX time in microseconds in the time slice */
412 u32 consumed_tx_time
;
414 TX_TSPEC_ACTION_NONE
= 0,
415 TX_TSPEC_ACTION_DOWNGRADE
,
416 TX_TSPEC_ACTION_STOP_DOWNGRADE
,
421 DECLARE_EWMA(beacon_signal
, 16, 4)
423 struct ieee80211_if_managed
{
424 struct timer_list timer
;
425 struct timer_list conn_mon_timer
;
426 struct timer_list bcn_mon_timer
;
427 struct timer_list chswitch_timer
;
428 struct work_struct monitor_work
;
429 struct work_struct chswitch_work
;
430 struct work_struct beacon_connection_loss_work
;
431 struct work_struct csa_connection_drop_work
;
433 unsigned long beacon_timeout
;
434 unsigned long probe_timeout
;
435 int probe_send_count
;
436 bool nullfunc_failed
;
437 bool connection_loss
;
439 struct cfg80211_bss
*associated
;
440 struct ieee80211_mgd_auth_data
*auth_data
;
441 struct ieee80211_mgd_assoc_data
*assoc_data
;
447 bool powersave
; /* powersave requested for this iface */
448 bool broken_ap
; /* AP is broken -- turn off powersave */
451 enum ieee80211_smps_mode req_smps
, /* requested smps mode */
452 driver_smps_mode
; /* smps mode request */
454 struct work_struct request_smps_work
;
458 bool csa_waiting_bcn
;
459 bool csa_ignored_same_chan
;
461 bool beacon_crc_valid
;
465 bool status_received
;
469 IEEE80211_MFP_DISABLED
,
470 IEEE80211_MFP_OPTIONAL
,
471 IEEE80211_MFP_REQUIRED
472 } mfp
; /* management frame protection */
475 * Bitmask of enabled u-apsd queues,
476 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
479 unsigned int uapsd_queues
;
482 * Maximum number of buffered frames AP can deliver during a
483 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
484 * Needs a new association to take effect.
486 unsigned int uapsd_max_sp_len
;
488 int wmm_last_param_set
;
494 struct ewma_beacon_signal ave_beacon_signal
;
497 * Number of Beacon frames used in ave_beacon_signal. This can be used
498 * to avoid generating less reliable cqm events that would be based
499 * only on couple of received frames.
501 unsigned int count_beacon_signal
;
503 /* Number of times beacon loss was invoked. */
504 unsigned int beacon_loss_count
;
507 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
508 * that triggered a cqm event. 0 indicates that no event has been
509 * generated for the current association.
511 int last_cqm_event_signal
;
514 * State variables for keeping track of RSSI of the AP currently
515 * connected to and informing driver when RSSI has gone
516 * below/above a certain threshold.
518 int rssi_min_thold
, rssi_max_thold
;
519 int last_ave_beacon_signal
;
521 struct ieee80211_ht_cap ht_capa
; /* configured ht-cap over-rides */
522 struct ieee80211_ht_cap ht_capa_mask
; /* Valid parts of ht_capa */
523 struct ieee80211_vht_cap vht_capa
; /* configured VHT overrides */
524 struct ieee80211_vht_cap vht_capa_mask
; /* Valid parts of vht_capa */
527 u8 tdls_peer
[ETH_ALEN
] __aligned(2);
528 struct delayed_work tdls_peer_del_work
;
529 struct sk_buff
*orig_teardown_skb
; /* The original teardown skb */
530 struct sk_buff
*teardown_skb
; /* A copy to send through the AP */
531 spinlock_t teardown_lock
; /* To lock changing teardown_skb */
532 bool tdls_chan_switch_prohibited
;
533 bool tdls_wider_bw_prohibited
;
535 /* WMM-AC TSPEC support */
536 struct ieee80211_sta_tx_tspec tx_tspec
[IEEE80211_NUM_ACS
];
537 /* Use a separate work struct so that we can do something here
538 * while the sdata->work is flushing the queues, for example.
539 * otherwise, in scenarios where we hardly get any traffic out
540 * on the BE queue, but there's a lot of VO traffic, we might
541 * get stuck in a downgraded situation and flush takes forever.
543 struct delayed_work tx_tspec_wk
;
546 struct ieee80211_if_ibss
{
547 struct timer_list timer
;
548 struct work_struct csa_connection_drop_work
;
550 unsigned long last_scan_completed
;
559 bool userspace_handles_dfs
;
561 u8 bssid
[ETH_ALEN
] __aligned(2);
562 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
565 struct cfg80211_chan_def chandef
;
567 unsigned long ibss_join_req
;
568 /* probe response/beacon for IBSS */
569 struct beacon_data __rcu
*presp
;
571 struct ieee80211_ht_cap ht_capa
; /* configured ht-cap over-rides */
572 struct ieee80211_ht_cap ht_capa_mask
; /* Valid parts of ht_capa */
574 spinlock_t incomplete_lock
;
575 struct list_head incomplete_stations
;
578 IEEE80211_IBSS_MLME_SEARCH
,
579 IEEE80211_IBSS_MLME_JOINED
,
584 * struct ieee80211_if_ocb - OCB mode state
586 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
587 * @wrkq_flags: OCB deferred task action
588 * @incomplete_lock: delayed STA insertion lock
589 * @incomplete_stations: list of STAs waiting for delayed insertion
590 * @joined: indication if the interface is connected to an OCB network
592 struct ieee80211_if_ocb
{
593 struct timer_list housekeeping_timer
;
594 unsigned long wrkq_flags
;
596 spinlock_t incomplete_lock
;
597 struct list_head incomplete_stations
;
603 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
605 * these declarations define the interface, which enables
606 * vendor-specific mesh synchronization
609 struct ieee802_11_elems
;
610 struct ieee80211_mesh_sync_ops
{
611 void (*rx_bcn_presp
)(struct ieee80211_sub_if_data
*sdata
,
613 struct ieee80211_mgmt
*mgmt
,
614 struct ieee802_11_elems
*elems
,
615 struct ieee80211_rx_status
*rx_status
);
617 /* should be called with beacon_data under RCU read lock */
618 void (*adjust_tbtt
)(struct ieee80211_sub_if_data
*sdata
,
619 struct beacon_data
*beacon
);
620 /* add other framework functions here */
623 struct mesh_csa_settings
{
624 struct rcu_head rcu_head
;
625 struct cfg80211_csa_settings settings
;
628 struct ieee80211_if_mesh
{
629 struct timer_list housekeeping_timer
;
630 struct timer_list mesh_path_timer
;
631 struct timer_list mesh_path_root_timer
;
633 unsigned long wrkq_flags
;
634 unsigned long mbss_changed
;
636 u8 mesh_id
[IEEE80211_MAX_MESH_ID_LEN
];
638 /* Active Path Selection Protocol Identifier */
640 /* Active Path Selection Metric Identifier */
642 /* Congestion Control Mode Identifier */
644 /* Synchronization Protocol Identifier */
646 /* Authentication Protocol Identifier */
648 /* Local mesh Sequence Number */
650 /* Last used PREQ ID */
653 /* Timestamp of last SN update */
654 unsigned long last_sn_update
;
655 /* Time when it's ok to send next PERR */
656 unsigned long next_perr
;
657 /* Timestamp of last PREQ sent */
658 unsigned long last_preq
;
659 struct mesh_rmc
*rmc
;
660 spinlock_t mesh_preq_queue_lock
;
661 struct mesh_preq_queue preq_queue
;
663 struct mesh_stats mshstats
;
664 struct mesh_config mshcfg
;
665 atomic_t estab_plinks
;
667 bool accepting_plinks
;
669 struct beacon_data __rcu
*beacon
;
673 IEEE80211_MESH_SEC_NONE
= 0x0,
674 IEEE80211_MESH_SEC_AUTHED
= 0x1,
675 IEEE80211_MESH_SEC_SECURED
= 0x2,
678 /* Extensible Synchronization Framework */
679 const struct ieee80211_mesh_sync_ops
*sync_ops
;
680 s64 sync_offset_clockdrift_max
;
681 spinlock_t sync_offset_lock
;
683 /* mesh power save */
684 enum nl80211_mesh_power_mode nonpeer_pm
;
685 int ps_peers_light_sleep
;
686 int ps_peers_deep_sleep
;
688 /* Channel Switching Support */
689 struct mesh_csa_settings __rcu
*csa
;
691 IEEE80211_MESH_CSA_ROLE_NONE
,
692 IEEE80211_MESH_CSA_ROLE_INIT
,
693 IEEE80211_MESH_CSA_ROLE_REPEATER
,
698 /* offset from skb->data while building IE */
701 struct mesh_table
*mesh_paths
;
702 struct mesh_table
*mpp_paths
; /* Store paths for MPP&MAP */
703 int mesh_paths_generation
;
704 int mpp_paths_generation
;
707 #ifdef CONFIG_MAC80211_MESH
708 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
709 do { (msh)->mshstats.name++; } while (0)
711 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
716 * enum ieee80211_sub_if_data_flags - virtual interface flags
718 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
719 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
720 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
721 * associated stations and deliver multicast frames both
722 * back to wireless media and to the local net stack.
723 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
724 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
726 enum ieee80211_sub_if_data_flags
{
727 IEEE80211_SDATA_ALLMULTI
= BIT(0),
728 IEEE80211_SDATA_OPERATING_GMODE
= BIT(2),
729 IEEE80211_SDATA_DONT_BRIDGE_PACKETS
= BIT(3),
730 IEEE80211_SDATA_DISCONNECT_RESUME
= BIT(4),
731 IEEE80211_SDATA_IN_DRIVER
= BIT(5),
735 * enum ieee80211_sdata_state_bits - virtual interface state bits
736 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
737 * mirrors netif_running() but is separate for interface type
738 * change handling while the interface is up
739 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
740 * mode, so queues are stopped
741 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
742 * to offchannel, reset when offchannel returns
744 enum ieee80211_sdata_state_bits
{
746 SDATA_STATE_OFFCHANNEL
,
747 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED
,
751 * enum ieee80211_chanctx_mode - channel context configuration mode
753 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
754 * multiple interfaces
755 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
756 * only by a single interface. This can be used for example for
757 * non-fixed channel IBSS.
759 enum ieee80211_chanctx_mode
{
760 IEEE80211_CHANCTX_SHARED
,
761 IEEE80211_CHANCTX_EXCLUSIVE
765 * enum ieee80211_chanctx_replace_state - channel context replacement state
767 * This is used for channel context in-place reservations that require channel
768 * context switch/swap.
770 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
771 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
772 * by a (not yet registered) channel context pointed by %replace_ctx.
773 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
774 * replaces an existing channel context pointed to by %replace_ctx.
776 enum ieee80211_chanctx_replace_state
{
777 IEEE80211_CHANCTX_REPLACE_NONE
,
778 IEEE80211_CHANCTX_WILL_BE_REPLACED
,
779 IEEE80211_CHANCTX_REPLACES_OTHER
,
782 struct ieee80211_chanctx
{
783 struct list_head list
;
784 struct rcu_head rcu_head
;
786 struct list_head assigned_vifs
;
787 struct list_head reserved_vifs
;
789 enum ieee80211_chanctx_replace_state replace_state
;
790 struct ieee80211_chanctx
*replace_ctx
;
792 enum ieee80211_chanctx_mode mode
;
795 struct ieee80211_chanctx_conf conf
;
798 struct mac80211_qos_map
{
799 struct cfg80211_qos_map qos_map
;
800 struct rcu_head rcu_head
;
803 enum txq_info_flags
{
806 IEEE80211_TXQ_NO_AMSDU
,
810 * struct txq_info - per tid queue
812 * @tin: contains packets split into multiple flows
813 * @def_flow: used as a fallback flow when a packet destined to @tin hashes to
814 * a fq_flow which is already owned by a different tin
815 * @def_cvars: codel vars for @def_flow
819 struct fq_flow def_flow
;
820 struct codel_vars def_cvars
;
824 struct ieee80211_txq txq
;
827 struct ieee80211_if_mntr
{
829 u8 mu_follow_addr
[ETH_ALEN
] __aligned(2);
832 struct ieee80211_sub_if_data
{
833 struct list_head list
;
835 struct wireless_dev wdev
;
838 struct list_head key_list
;
840 /* count for keys needing tailroom space allocation */
841 int crypto_tx_tailroom_needed_cnt
;
842 int crypto_tx_tailroom_pending_dec
;
843 struct delayed_work dec_tailroom_needed_wk
;
845 struct net_device
*dev
;
846 struct ieee80211_local
*local
;
854 /* Fragment table for host-based reassembly */
855 struct ieee80211_fragment_entry fragments
[IEEE80211_FRAGMENT_MAX
];
856 unsigned int fragment_next
;
858 /* TID bitmap for NoAck policy */
861 /* bit field of ACM bits (BIT(802.1D tag)) */
864 struct ieee80211_key __rcu
*keys
[NUM_DEFAULT_KEYS
+ NUM_DEFAULT_MGMT_KEYS
];
865 struct ieee80211_key __rcu
*default_unicast_key
;
866 struct ieee80211_key __rcu
*default_multicast_key
;
867 struct ieee80211_key __rcu
*default_mgmt_key
;
870 __be16 control_port_protocol
;
871 bool control_port_no_encrypt
;
872 int encrypt_headroom
;
874 atomic_t num_tx_queued
;
875 struct ieee80211_tx_queue_params tx_conf
[IEEE80211_NUM_ACS
];
876 struct mac80211_qos_map __rcu
*qos_map
;
878 struct work_struct csa_finalize_work
;
879 bool csa_block_tx
; /* write-protected by sdata_lock and local->mtx */
880 struct cfg80211_chan_def csa_chandef
;
882 struct list_head assigned_chanctx_list
; /* protected by chanctx_mtx */
883 struct list_head reserved_chanctx_list
; /* protected by chanctx_mtx */
885 /* context reservation -- protected with chanctx_mtx */
886 struct ieee80211_chanctx
*reserved_chanctx
;
887 struct cfg80211_chan_def reserved_chandef
;
888 bool reserved_radar_required
;
891 /* used to reconfigure hardware SM PS */
892 struct work_struct recalc_smps
;
894 struct work_struct work
;
895 struct sk_buff_head skb_queue
;
898 enum ieee80211_smps_mode smps_mode
;
900 int user_power_level
; /* in dBm */
901 int ap_power_level
; /* in dBm */
904 struct delayed_work dfs_cac_timer_work
;
907 * AP this belongs to: self in AP mode and
908 * corresponding AP in VLAN mode, NULL for
909 * all others (might be needed later in IBSS)
911 struct ieee80211_if_ap
*bss
;
913 /* bitmap of allowed (non-MCS) rate indexes for rate control */
914 u32 rc_rateidx_mask
[NUM_NL80211_BANDS
];
916 bool rc_has_mcs_mask
[NUM_NL80211_BANDS
];
917 u8 rc_rateidx_mcs_mask
[NUM_NL80211_BANDS
][IEEE80211_HT_MCS_MASK_LEN
];
919 bool rc_has_vht_mcs_mask
[NUM_NL80211_BANDS
];
920 u16 rc_rateidx_vht_mcs_mask
[NUM_NL80211_BANDS
][NL80211_VHT_NSS_MAX
];
923 struct ieee80211_if_ap ap
;
924 struct ieee80211_if_wds wds
;
925 struct ieee80211_if_vlan vlan
;
926 struct ieee80211_if_managed mgd
;
927 struct ieee80211_if_ibss ibss
;
928 struct ieee80211_if_mesh mesh
;
929 struct ieee80211_if_ocb ocb
;
930 struct ieee80211_if_mntr mntr
;
933 #ifdef CONFIG_MAC80211_DEBUGFS
935 struct dentry
*subdir_stations
;
936 struct dentry
*default_unicast_key
;
937 struct dentry
*default_multicast_key
;
938 struct dentry
*default_mgmt_key
;
942 /* must be last, dynamically sized area in this! */
943 struct ieee80211_vif vif
;
947 struct ieee80211_sub_if_data
*vif_to_sdata(struct ieee80211_vif
*p
)
949 return container_of(p
, struct ieee80211_sub_if_data
, vif
);
952 static inline void sdata_lock(struct ieee80211_sub_if_data
*sdata
)
953 __acquires(&sdata
->wdev
.mtx
)
955 mutex_lock(&sdata
->wdev
.mtx
);
956 __acquire(&sdata
->wdev
.mtx
);
959 static inline void sdata_unlock(struct ieee80211_sub_if_data
*sdata
)
960 __releases(&sdata
->wdev
.mtx
)
962 mutex_unlock(&sdata
->wdev
.mtx
);
963 __release(&sdata
->wdev
.mtx
);
966 #define sdata_dereference(p, sdata) \
967 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
970 sdata_assert_lock(struct ieee80211_sub_if_data
*sdata
)
972 lockdep_assert_held(&sdata
->wdev
.mtx
);
975 static inline enum nl80211_band
976 ieee80211_get_sdata_band(struct ieee80211_sub_if_data
*sdata
)
978 enum nl80211_band band
= NL80211_BAND_2GHZ
;
979 struct ieee80211_chanctx_conf
*chanctx_conf
;
982 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
983 if (!WARN_ON(!chanctx_conf
))
984 band
= chanctx_conf
->def
.chan
->band
;
991 ieee80211_chandef_get_shift(struct cfg80211_chan_def
*chandef
)
993 switch (chandef
->width
) {
994 case NL80211_CHAN_WIDTH_5
:
996 case NL80211_CHAN_WIDTH_10
:
1004 ieee80211_vif_get_shift(struct ieee80211_vif
*vif
)
1006 struct ieee80211_chanctx_conf
*chanctx_conf
;
1010 chanctx_conf
= rcu_dereference(vif
->chanctx_conf
);
1012 shift
= ieee80211_chandef_get_shift(&chanctx_conf
->def
);
1018 struct ieee80211_rx_agg
{
1023 enum sdata_queue_type
{
1024 IEEE80211_SDATA_QUEUE_TYPE_FRAME
= 0,
1025 IEEE80211_SDATA_QUEUE_AGG_START
= 1,
1026 IEEE80211_SDATA_QUEUE_AGG_STOP
= 2,
1027 IEEE80211_SDATA_QUEUE_RX_AGG_START
= 3,
1028 IEEE80211_SDATA_QUEUE_RX_AGG_STOP
= 4,
1032 IEEE80211_RX_MSG
= 1,
1033 IEEE80211_TX_STATUS_MSG
= 2,
1036 enum queue_stop_reason
{
1037 IEEE80211_QUEUE_STOP_REASON_DRIVER
,
1038 IEEE80211_QUEUE_STOP_REASON_PS
,
1039 IEEE80211_QUEUE_STOP_REASON_CSA
,
1040 IEEE80211_QUEUE_STOP_REASON_AGGREGATION
,
1041 IEEE80211_QUEUE_STOP_REASON_SUSPEND
,
1042 IEEE80211_QUEUE_STOP_REASON_SKB_ADD
,
1043 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL
,
1044 IEEE80211_QUEUE_STOP_REASON_FLUSH
,
1045 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN
,
1046 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID
,
1048 IEEE80211_QUEUE_STOP_REASONS
,
1051 #ifdef CONFIG_MAC80211_LEDS
1052 struct tpt_led_trigger
{
1054 const struct ieee80211_tpt_blink
*blink_table
;
1055 unsigned int blink_table_len
;
1056 struct timer_list timer
;
1057 unsigned long prev_traffic
;
1058 unsigned long tx_bytes
, rx_bytes
;
1059 unsigned int active
, want
;
1065 * mac80211 scan flags - currently active scan mode
1067 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1068 * well be on the operating channel
1069 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1070 * determine if we are on the operating channel or not
1071 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1072 * channel. This should not interrupt normal traffic.
1073 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1074 * that the scan completed.
1075 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1076 * a scan complete for an aborted scan.
1077 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1083 SCAN_ONCHANNEL_SCANNING
,
1090 * enum mac80211_scan_state - scan state machine states
1092 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1093 * determines if we should keep on scanning or switch back to the
1095 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1096 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1097 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1099 * @SCAN_RESUME: Resume the scan and scan the next channel
1100 * @SCAN_ABORT: Abort the scan and go back to operating channel
1102 enum mac80211_scan_state
{
1111 struct ieee80211_local
{
1112 /* embed the driver visible part.
1113 * don't cast (use the static inlines below), but we keep
1114 * it first anyway so they become a no-op */
1115 struct ieee80211_hw hw
;
1118 struct codel_vars
*cvars
;
1119 struct codel_params cparams
;
1120 struct codel_stats cstats
;
1122 const struct ieee80211_ops
*ops
;
1125 * private workqueue to mac80211. mac80211 makes this accessible
1126 * via ieee80211_queue_work()
1128 struct workqueue_struct
*workqueue
;
1130 unsigned long queue_stop_reasons
[IEEE80211_MAX_QUEUES
];
1131 int q_stop_reasons
[IEEE80211_MAX_QUEUES
][IEEE80211_QUEUE_STOP_REASONS
];
1132 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1133 spinlock_t queue_stop_reason_lock
;
1136 int monitors
, cooked_mntrs
;
1137 /* number of interfaces with corresponding FIF_ flags */
1138 int fif_fcsfail
, fif_plcpfail
, fif_control
, fif_other_bss
, fif_pspoll
,
1141 unsigned int filter_flags
; /* FIF_* */
1143 bool wiphy_ciphers_allocated
;
1147 /* protects the aggregated multicast list and filter calls */
1148 spinlock_t filter_lock
;
1150 /* used for uploading changed mc list */
1151 struct work_struct reconfig_filter
;
1153 /* aggregated multicast list */
1154 struct netdev_hw_addr_list mc_list
;
1156 bool tim_in_locked_section
; /* see ieee80211_beacon_get() */
1159 * suspended is true if we finished all the suspend _and_ we have
1160 * not yet come up from resume. This is to be used by mac80211
1161 * to ensure driver sanity during suspend and mac80211's own
1162 * sanity. It can eventually be used for WoW as well.
1167 * Resuming is true while suspended, but when we're reprogramming the
1168 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1169 * again even though some other parts of the stack are still suspended
1170 * and we still drop received frames to avoid waking the stack.
1175 * quiescing is true during the suspend process _only_ to
1176 * ease timer cancelling etc.
1180 /* device is started */
1183 /* device is during a HW reconfig */
1186 /* wowlan is enabled -- don't reconfig on resume */
1189 struct work_struct radar_detected_work
;
1191 /* number of RX chains the hardware has */
1194 int tx_headroom
; /* required headroom for hardware/radiotap */
1196 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1197 * added to skb_queue will be processed, but frames in
1198 * skb_queue_unreliable may be dropped if the total length of these
1199 * queues increases over the limit. */
1200 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1201 struct tasklet_struct tasklet
;
1202 struct sk_buff_head skb_queue
;
1203 struct sk_buff_head skb_queue_unreliable
;
1205 spinlock_t rx_path_lock
;
1209 * The mutex only protects the list, hash table and
1210 * counter, reads are done with RCU.
1212 struct mutex sta_mtx
;
1213 spinlock_t tim_lock
;
1214 unsigned long num_sta
;
1215 struct list_head sta_list
;
1216 struct rhashtable sta_hash
;
1217 struct timer_list sta_cleanup
;
1220 struct sk_buff_head pending
[IEEE80211_MAX_QUEUES
];
1221 struct tasklet_struct tx_pending_tasklet
;
1223 atomic_t agg_queue_stop
[IEEE80211_MAX_QUEUES
];
1225 /* number of interfaces with allmulti RX */
1226 atomic_t iff_allmultis
;
1228 struct rate_control_ref
*rate_ctrl
;
1230 struct crypto_cipher
*wep_tx_tfm
;
1231 struct crypto_cipher
*wep_rx_tfm
;
1235 struct list_head interfaces
;
1236 struct mutex iflist_mtx
;
1239 * Key mutex, protects sdata's key_list and sta_info's
1240 * key pointers (write access, they're RCU.)
1242 struct mutex key_mtx
;
1244 /* mutex for scan and work locking */
1247 /* Scanning and BSS list */
1248 unsigned long scanning
;
1249 struct cfg80211_ssid scan_ssid
;
1250 struct cfg80211_scan_request
*int_scan_req
;
1251 struct cfg80211_scan_request __rcu
*scan_req
;
1252 struct ieee80211_scan_request
*hw_scan_req
;
1253 struct cfg80211_chan_def scan_chandef
;
1254 enum nl80211_band hw_scan_band
;
1255 int scan_channel_idx
;
1257 int hw_scan_ies_bufsize
;
1258 struct cfg80211_scan_info scan_info
;
1260 struct work_struct sched_scan_stopped_work
;
1261 struct ieee80211_sub_if_data __rcu
*sched_scan_sdata
;
1262 struct cfg80211_sched_scan_request __rcu
*sched_scan_req
;
1263 u8 scan_addr
[ETH_ALEN
];
1265 unsigned long leave_oper_channel_time
;
1266 enum mac80211_scan_state next_scan_state
;
1267 struct delayed_work scan_work
;
1268 struct ieee80211_sub_if_data __rcu
*scan_sdata
;
1269 /* For backward compatibility only -- do not use */
1270 struct cfg80211_chan_def _oper_chandef
;
1272 /* Temporary remain-on-channel for off-channel operations */
1273 struct ieee80211_channel
*tmp_channel
;
1275 /* channel contexts */
1276 struct list_head chanctx_list
;
1277 struct mutex chanctx_mtx
;
1279 #ifdef CONFIG_MAC80211_LEDS
1280 struct led_trigger tx_led
, rx_led
, assoc_led
, radio_led
;
1281 struct led_trigger tpt_led
;
1282 atomic_t tx_led_active
, rx_led_active
, assoc_led_active
;
1283 atomic_t radio_led_active
, tpt_led_active
;
1284 struct tpt_led_trigger
*tpt_led_trigger
;
1287 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1289 /* dot11CountersTable */
1290 u32 dot11TransmittedFragmentCount
;
1291 u32 dot11MulticastTransmittedFrameCount
;
1292 u32 dot11FailedCount
;
1293 u32 dot11RetryCount
;
1294 u32 dot11MultipleRetryCount
;
1295 u32 dot11FrameDuplicateCount
;
1296 u32 dot11ReceivedFragmentCount
;
1297 u32 dot11MulticastReceivedFrameCount
;
1298 u32 dot11TransmittedFrameCount
;
1300 /* TX/RX handler statistics */
1301 unsigned int tx_handlers_drop
;
1302 unsigned int tx_handlers_queued
;
1303 unsigned int tx_handlers_drop_wep
;
1304 unsigned int tx_handlers_drop_not_assoc
;
1305 unsigned int tx_handlers_drop_unauth_port
;
1306 unsigned int rx_handlers_drop
;
1307 unsigned int rx_handlers_queued
;
1308 unsigned int rx_handlers_drop_nullfunc
;
1309 unsigned int rx_handlers_drop_defrag
;
1310 unsigned int tx_expand_skb_head
;
1311 unsigned int tx_expand_skb_head_cloned
;
1312 unsigned int rx_expand_skb_head_defrag
;
1313 unsigned int rx_handlers_fragments
;
1314 unsigned int tx_status_drop
;
1315 #define I802_DEBUG_INC(c) (c)++
1316 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1317 #define I802_DEBUG_INC(c) do { } while (0)
1318 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1321 int total_ps_buffered
; /* total number of all buffered unicast and
1322 * multicast packets for power saving stations
1326 bool offchannel_ps_enabled
;
1328 * PS can only be enabled when we have exactly one managed
1329 * interface (and monitors) in PS, this then points there.
1331 struct ieee80211_sub_if_data
*ps_sdata
;
1332 struct work_struct dynamic_ps_enable_work
;
1333 struct work_struct dynamic_ps_disable_work
;
1334 struct timer_list dynamic_ps_timer
;
1335 struct notifier_block ifa_notifier
;
1336 struct notifier_block ifa6_notifier
;
1339 * The dynamic ps timeout configured from user space via WEXT -
1340 * this will override whatever chosen by mac80211 internally.
1342 int dynamic_ps_forced_timeout
;
1344 int user_power_level
; /* in dBm, for all interfaces */
1346 enum ieee80211_smps_mode smps_mode
;
1348 struct work_struct restart_work
;
1350 #ifdef CONFIG_MAC80211_DEBUGFS
1351 struct local_debugfsdentries
{
1352 struct dentry
*rcdir
;
1353 struct dentry
*keys
;
1358 * Remain-on-channel support
1360 struct delayed_work roc_work
;
1361 struct list_head roc_list
;
1362 struct work_struct hw_roc_start
, hw_roc_done
;
1363 unsigned long hw_roc_start_time
;
1364 u64 roc_cookie_counter
;
1366 struct idr ack_status_frames
;
1367 spinlock_t ack_status_lock
;
1369 struct ieee80211_sub_if_data __rcu
*p2p_sdata
;
1371 /* virtual monitor interface */
1372 struct ieee80211_sub_if_data __rcu
*monitor_sdata
;
1373 struct cfg80211_chan_def monitor_chandef
;
1375 /* extended capabilities provided by mac80211 */
1378 /* TDLS channel switch */
1379 struct work_struct tdls_chsw_work
;
1380 struct sk_buff_head skb_queue_tdls_chsw
;
1383 static inline struct ieee80211_sub_if_data
*
1384 IEEE80211_DEV_TO_SUB_IF(struct net_device
*dev
)
1386 return netdev_priv(dev
);
1389 static inline struct ieee80211_sub_if_data
*
1390 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev
*wdev
)
1392 return container_of(wdev
, struct ieee80211_sub_if_data
, wdev
);
1395 /* this struct represents 802.11n's RA/TID combination */
1396 struct ieee80211_ra_tid
{
1401 /* this struct holds the value parsing from channel switch IE */
1402 struct ieee80211_csa_ie
{
1403 struct cfg80211_chan_def chandef
;
1410 /* Parsed Information Elements */
1411 struct ieee802_11_elems
{
1415 /* pointers to IEs */
1416 const struct ieee80211_tdls_lnkie
*lnk_id
;
1417 const struct ieee80211_ch_switch_timing
*ch_sw_timing
;
1418 const u8
*ext_capab
;
1420 const u8
*supp_rates
;
1421 const u8
*ds_params
;
1422 const struct ieee80211_tim_ie
*tim
;
1423 const u8
*challenge
;
1426 const u8
*ext_supp_rates
;
1428 const u8
*wmm_param
;
1429 const struct ieee80211_ht_cap
*ht_cap_elem
;
1430 const struct ieee80211_ht_operation
*ht_operation
;
1431 const struct ieee80211_vht_cap
*vht_cap_elem
;
1432 const struct ieee80211_vht_operation
*vht_operation
;
1433 const struct ieee80211_meshconf_ie
*mesh_config
;
1436 const __le16
*awake_window
;
1440 const struct ieee80211_rann_ie
*rann
;
1441 const struct ieee80211_channel_sw_ie
*ch_switch_ie
;
1442 const struct ieee80211_ext_chansw_ie
*ext_chansw_ie
;
1443 const struct ieee80211_wide_bw_chansw_ie
*wide_bw_chansw_ie
;
1444 const u8
*country_elem
;
1445 const u8
*pwr_constr_elem
;
1446 const u8
*cisco_dtpc_elem
;
1447 const struct ieee80211_timeout_interval_ie
*timeout_int
;
1448 const u8
*opmode_notif
;
1449 const struct ieee80211_sec_chan_offs_ie
*sec_chan_offs
;
1450 const struct ieee80211_mesh_chansw_params_ie
*mesh_chansw_params_ie
;
1452 /* length of them, respectively */
1459 u8 ext_supp_rates_len
;
1467 u8 country_elem_len
;
1469 /* whether a parse error occurred while retrieving these elements */
1473 static inline struct ieee80211_local
*hw_to_local(
1474 struct ieee80211_hw
*hw
)
1476 return container_of(hw
, struct ieee80211_local
, hw
);
1479 static inline struct txq_info
*to_txq_info(struct ieee80211_txq
*txq
)
1481 return container_of(txq
, struct txq_info
, txq
);
1484 static inline int ieee80211_bssid_match(const u8
*raddr
, const u8
*addr
)
1486 return ether_addr_equal(raddr
, addr
) ||
1487 is_broadcast_ether_addr(raddr
);
1491 ieee80211_have_rx_timestamp(struct ieee80211_rx_status
*status
)
1493 WARN_ON_ONCE(status
->flag
& RX_FLAG_MACTIME_START
&&
1494 status
->flag
& RX_FLAG_MACTIME_END
);
1495 if (status
->flag
& (RX_FLAG_MACTIME_START
| RX_FLAG_MACTIME_END
))
1497 /* can't handle HT/VHT preamble yet */
1498 if (status
->flag
& RX_FLAG_MACTIME_PLCP_START
&&
1499 !(status
->flag
& (RX_FLAG_HT
| RX_FLAG_VHT
)))
1504 u64
ieee80211_calculate_rx_timestamp(struct ieee80211_local
*local
,
1505 struct ieee80211_rx_status
*status
,
1506 unsigned int mpdu_len
,
1507 unsigned int mpdu_offset
);
1508 int ieee80211_hw_config(struct ieee80211_local
*local
, u32 changed
);
1509 void ieee80211_tx_set_protected(struct ieee80211_tx_data
*tx
);
1510 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data
*sdata
,
1512 void ieee80211_configure_filter(struct ieee80211_local
*local
);
1513 u32
ieee80211_reset_erp_info(struct ieee80211_sub_if_data
*sdata
);
1515 u64
ieee80211_mgmt_tx_cookie(struct ieee80211_local
*local
);
1516 int ieee80211_attach_ack_skb(struct ieee80211_local
*local
, struct sk_buff
*skb
,
1517 u64
*cookie
, gfp_t gfp
);
1519 void ieee80211_check_fast_rx(struct sta_info
*sta
);
1520 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data
*sdata
);
1521 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data
*sdata
);
1522 void ieee80211_clear_fast_rx(struct sta_info
*sta
);
1525 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
1526 int ieee80211_mgd_auth(struct ieee80211_sub_if_data
*sdata
,
1527 struct cfg80211_auth_request
*req
);
1528 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data
*sdata
,
1529 struct cfg80211_assoc_request
*req
);
1530 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data
*sdata
,
1531 struct cfg80211_deauth_request
*req
);
1532 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data
*sdata
,
1533 struct cfg80211_disassoc_request
*req
);
1534 void ieee80211_send_pspoll(struct ieee80211_local
*local
,
1535 struct ieee80211_sub_if_data
*sdata
);
1536 void ieee80211_recalc_ps(struct ieee80211_local
*local
);
1537 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data
*sdata
);
1538 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data
*sdata
);
1539 void ieee80211_sta_work(struct ieee80211_sub_if_data
*sdata
);
1540 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1541 struct sk_buff
*skb
);
1542 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data
*sdata
);
1543 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data
*sdata
);
1544 void ieee80211_mgd_stop(struct ieee80211_sub_if_data
*sdata
);
1545 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data
*sdata
,
1546 __le16 fc
, bool acked
);
1547 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data
*sdata
);
1548 void ieee80211_sta_restart(struct ieee80211_sub_if_data
*sdata
);
1549 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data
*sdata
);
1552 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local
*local
);
1553 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
1554 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data
*sdata
,
1555 const u8
*bssid
, const u8
*addr
, u32 supp_rates
);
1556 int ieee80211_ibss_join(struct ieee80211_sub_if_data
*sdata
,
1557 struct cfg80211_ibss_params
*params
);
1558 int ieee80211_ibss_leave(struct ieee80211_sub_if_data
*sdata
);
1559 void ieee80211_ibss_work(struct ieee80211_sub_if_data
*sdata
);
1560 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1561 struct sk_buff
*skb
);
1562 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data
*sdata
,
1563 struct cfg80211_csa_settings
*csa_settings
);
1564 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data
*sdata
);
1565 void ieee80211_ibss_stop(struct ieee80211_sub_if_data
*sdata
);
1568 void ieee80211_ocb_work(struct ieee80211_sub_if_data
*sdata
);
1569 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data
*sdata
,
1570 const u8
*bssid
, const u8
*addr
, u32 supp_rates
);
1571 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
1572 int ieee80211_ocb_join(struct ieee80211_sub_if_data
*sdata
,
1573 struct ocb_setup
*setup
);
1574 int ieee80211_ocb_leave(struct ieee80211_sub_if_data
*sdata
);
1577 void ieee80211_mesh_work(struct ieee80211_sub_if_data
*sdata
);
1578 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1579 struct sk_buff
*skb
);
1580 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data
*sdata
,
1581 struct cfg80211_csa_settings
*csa_settings
);
1582 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data
*sdata
);
1584 /* scan/BSS handling */
1585 void ieee80211_scan_work(struct work_struct
*work
);
1586 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data
*sdata
,
1587 const u8
*ssid
, u8 ssid_len
,
1588 struct ieee80211_channel
**channels
,
1589 unsigned int n_channels
,
1590 enum nl80211_bss_scan_width scan_width
);
1591 int ieee80211_request_scan(struct ieee80211_sub_if_data
*sdata
,
1592 struct cfg80211_scan_request
*req
);
1593 void ieee80211_scan_cancel(struct ieee80211_local
*local
);
1594 void ieee80211_run_deferred_scan(struct ieee80211_local
*local
);
1595 void ieee80211_scan_rx(struct ieee80211_local
*local
, struct sk_buff
*skb
);
1597 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local
*local
);
1598 struct ieee80211_bss
*
1599 ieee80211_bss_info_update(struct ieee80211_local
*local
,
1600 struct ieee80211_rx_status
*rx_status
,
1601 struct ieee80211_mgmt
*mgmt
,
1603 struct ieee802_11_elems
*elems
,
1604 struct ieee80211_channel
*channel
);
1605 void ieee80211_rx_bss_put(struct ieee80211_local
*local
,
1606 struct ieee80211_bss
*bss
);
1608 /* scheduled scan handling */
1610 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data
*sdata
,
1611 struct cfg80211_sched_scan_request
*req
);
1612 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data
*sdata
,
1613 struct cfg80211_sched_scan_request
*req
);
1614 int ieee80211_request_sched_scan_stop(struct ieee80211_local
*local
);
1615 void ieee80211_sched_scan_end(struct ieee80211_local
*local
);
1616 void ieee80211_sched_scan_stopped_work(struct work_struct
*work
);
1618 /* off-channel/mgmt-tx */
1619 void ieee80211_offchannel_stop_vifs(struct ieee80211_local
*local
);
1620 void ieee80211_offchannel_return(struct ieee80211_local
*local
);
1621 void ieee80211_roc_setup(struct ieee80211_local
*local
);
1622 void ieee80211_start_next_roc(struct ieee80211_local
*local
);
1623 void ieee80211_roc_purge(struct ieee80211_local
*local
,
1624 struct ieee80211_sub_if_data
*sdata
);
1625 int ieee80211_remain_on_channel(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
1626 struct ieee80211_channel
*chan
,
1627 unsigned int duration
, u64
*cookie
);
1628 int ieee80211_cancel_remain_on_channel(struct wiphy
*wiphy
,
1629 struct wireless_dev
*wdev
, u64 cookie
);
1630 int ieee80211_mgmt_tx(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
1631 struct cfg80211_mgmt_tx_params
*params
, u64
*cookie
);
1632 int ieee80211_mgmt_tx_cancel_wait(struct wiphy
*wiphy
,
1633 struct wireless_dev
*wdev
, u64 cookie
);
1635 /* channel switch handling */
1636 void ieee80211_csa_finalize_work(struct work_struct
*work
);
1637 int ieee80211_channel_switch(struct wiphy
*wiphy
, struct net_device
*dev
,
1638 struct cfg80211_csa_settings
*params
);
1640 /* interface handling */
1641 int ieee80211_iface_init(void);
1642 void ieee80211_iface_exit(void);
1643 int ieee80211_if_add(struct ieee80211_local
*local
, const char *name
,
1644 unsigned char name_assign_type
,
1645 struct wireless_dev
**new_wdev
, enum nl80211_iftype type
,
1646 struct vif_params
*params
);
1647 int ieee80211_if_change_type(struct ieee80211_sub_if_data
*sdata
,
1648 enum nl80211_iftype type
);
1649 void ieee80211_if_remove(struct ieee80211_sub_if_data
*sdata
);
1650 void ieee80211_remove_interfaces(struct ieee80211_local
*local
);
1651 u32
ieee80211_idle_off(struct ieee80211_local
*local
);
1652 void ieee80211_recalc_idle(struct ieee80211_local
*local
);
1653 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data
*sdata
,
1655 int ieee80211_do_open(struct wireless_dev
*wdev
, bool coming_up
);
1656 void ieee80211_sdata_stop(struct ieee80211_sub_if_data
*sdata
);
1657 int ieee80211_add_virtual_monitor(struct ieee80211_local
*local
);
1658 void ieee80211_del_virtual_monitor(struct ieee80211_local
*local
);
1660 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data
*sdata
);
1661 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data
*sdata
,
1664 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data
*sdata
)
1666 return test_bit(SDATA_STATE_RUNNING
, &sdata
->state
);
1670 void ieee80211_clear_tx_pending(struct ieee80211_local
*local
);
1671 void ieee80211_tx_pending(unsigned long data
);
1672 netdev_tx_t
ieee80211_monitor_start_xmit(struct sk_buff
*skb
,
1673 struct net_device
*dev
);
1674 netdev_tx_t
ieee80211_subif_start_xmit(struct sk_buff
*skb
,
1675 struct net_device
*dev
);
1676 void __ieee80211_subif_start_xmit(struct sk_buff
*skb
,
1677 struct net_device
*dev
,
1679 void ieee80211_purge_tx_queue(struct ieee80211_hw
*hw
,
1680 struct sk_buff_head
*skbs
);
1682 ieee80211_build_data_template(struct ieee80211_sub_if_data
*sdata
,
1683 struct sk_buff
*skb
, u32 info_flags
);
1684 void ieee80211_tx_monitor(struct ieee80211_local
*local
, struct sk_buff
*skb
,
1685 struct ieee80211_supported_band
*sband
,
1686 int retry_count
, int shift
, bool send_to_cooked
);
1688 void ieee80211_check_fast_xmit(struct sta_info
*sta
);
1689 void ieee80211_check_fast_xmit_all(struct ieee80211_local
*local
);
1690 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data
*sdata
);
1691 void ieee80211_clear_fast_xmit(struct sta_info
*sta
);
1694 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data
*sdata
,
1695 struct ieee80211_sta_ht_cap
*ht_cap
);
1696 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data
*sdata
,
1697 struct ieee80211_supported_band
*sband
,
1698 const struct ieee80211_ht_cap
*ht_cap_ie
,
1699 struct sta_info
*sta
);
1700 void ieee80211_send_delba(struct ieee80211_sub_if_data
*sdata
,
1701 const u8
*da
, u16 tid
,
1702 u16 initiator
, u16 reason_code
);
1703 int ieee80211_send_smps_action(struct ieee80211_sub_if_data
*sdata
,
1704 enum ieee80211_smps_mode smps
, const u8
*da
,
1706 void ieee80211_request_smps_ap_work(struct work_struct
*work
);
1707 void ieee80211_request_smps_mgd_work(struct work_struct
*work
);
1708 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old
,
1709 enum ieee80211_smps_mode smps_mode_new
);
1711 void ___ieee80211_stop_rx_ba_session(struct sta_info
*sta
, u16 tid
,
1712 u16 initiator
, u16 reason
, bool stop
);
1713 void __ieee80211_stop_rx_ba_session(struct sta_info
*sta
, u16 tid
,
1714 u16 initiator
, u16 reason
, bool stop
);
1715 void __ieee80211_start_rx_ba_session(struct sta_info
*sta
,
1716 u8 dialog_token
, u16 timeout
,
1717 u16 start_seq_num
, u16 ba_policy
, u16 tid
,
1718 u16 buf_size
, bool tx
, bool auto_seq
);
1719 void ieee80211_sta_tear_down_BA_sessions(struct sta_info
*sta
,
1720 enum ieee80211_agg_stop_reason reason
);
1721 void ieee80211_process_delba(struct ieee80211_sub_if_data
*sdata
,
1722 struct sta_info
*sta
,
1723 struct ieee80211_mgmt
*mgmt
, size_t len
);
1724 void ieee80211_process_addba_resp(struct ieee80211_local
*local
,
1725 struct sta_info
*sta
,
1726 struct ieee80211_mgmt
*mgmt
,
1728 void ieee80211_process_addba_request(struct ieee80211_local
*local
,
1729 struct sta_info
*sta
,
1730 struct ieee80211_mgmt
*mgmt
,
1733 int __ieee80211_stop_tx_ba_session(struct sta_info
*sta
, u16 tid
,
1734 enum ieee80211_agg_stop_reason reason
);
1735 int ___ieee80211_stop_tx_ba_session(struct sta_info
*sta
, u16 tid
,
1736 enum ieee80211_agg_stop_reason reason
);
1737 void ieee80211_start_tx_ba_cb(struct ieee80211_vif
*vif
, u8
*ra
, u16 tid
);
1738 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif
*vif
, u8
*ra
, u8 tid
);
1739 void ieee80211_ba_session_work(struct work_struct
*work
);
1740 void ieee80211_tx_ba_session_handle_start(struct sta_info
*sta
, int tid
);
1741 void ieee80211_release_reorder_timeout(struct sta_info
*sta
, int tid
);
1743 u8
ieee80211_mcs_to_chains(const struct ieee80211_mcs_info
*mcs
);
1747 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data
*sdata
,
1748 struct ieee80211_supported_band
*sband
,
1749 const struct ieee80211_vht_cap
*vht_cap_ie
,
1750 struct sta_info
*sta
);
1751 enum ieee80211_sta_rx_bandwidth
ieee80211_sta_cap_rx_bw(struct sta_info
*sta
);
1752 enum ieee80211_sta_rx_bandwidth
ieee80211_sta_cur_vht_bw(struct sta_info
*sta
);
1753 void ieee80211_sta_set_rx_nss(struct sta_info
*sta
);
1754 enum ieee80211_sta_rx_bandwidth
1755 ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width
);
1756 enum nl80211_chan_width
ieee80211_sta_cap_chan_bw(struct sta_info
*sta
);
1757 void ieee80211_sta_set_rx_nss(struct sta_info
*sta
);
1758 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data
*sdata
,
1759 struct ieee80211_mgmt
*mgmt
);
1760 u32
__ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data
*sdata
,
1761 struct sta_info
*sta
, u8 opmode
,
1762 enum nl80211_band band
);
1763 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data
*sdata
,
1764 struct sta_info
*sta
, u8 opmode
,
1765 enum nl80211_band band
);
1766 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data
*sdata
,
1767 struct ieee80211_sta_vht_cap
*vht_cap
);
1768 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap
,
1769 u16 vht_mask
[NL80211_VHT_NSS_MAX
]);
1771 /* Spectrum management */
1772 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data
*sdata
,
1773 struct ieee80211_mgmt
*mgmt
,
1776 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
1777 * @sdata: the sdata of the interface which has received the frame
1778 * @elems: parsed 802.11 elements received with the frame
1779 * @current_band: indicates the current band
1780 * @sta_flags: contains information about own capabilities and restrictions
1781 * to decide which channel switch announcements can be accepted. Only the
1782 * following subset of &enum ieee80211_sta_flags are evaluated:
1783 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
1784 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
1785 * %IEEE80211_STA_DISABLE_160MHZ.
1786 * @bssid: the currently connected bssid (for reporting)
1787 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
1788 All of them will be filled with if success only.
1789 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
1791 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data
*sdata
,
1792 struct ieee802_11_elems
*elems
,
1793 enum nl80211_band current_band
,
1794 u32 sta_flags
, u8
*bssid
,
1795 struct ieee80211_csa_ie
*csa_ie
);
1797 /* Suspend/resume and hw reconfiguration */
1798 int ieee80211_reconfig(struct ieee80211_local
*local
);
1799 void ieee80211_stop_device(struct ieee80211_local
*local
);
1801 int __ieee80211_suspend(struct ieee80211_hw
*hw
,
1802 struct cfg80211_wowlan
*wowlan
);
1804 static inline int __ieee80211_resume(struct ieee80211_hw
*hw
)
1806 struct ieee80211_local
*local
= hw_to_local(hw
);
1808 WARN(test_bit(SCAN_HW_SCANNING
, &local
->scanning
) &&
1809 !test_bit(SCAN_COMPLETED
, &local
->scanning
),
1810 "%s: resume with hardware scan still in progress\n",
1811 wiphy_name(hw
->wiphy
));
1813 return ieee80211_reconfig(hw_to_local(hw
));
1816 /* utility functions/constants */
1817 extern const void *const mac80211_wiphy_privid
; /* for wiphy privid */
1818 int ieee80211_frame_duration(enum nl80211_band band
, size_t len
,
1819 int rate
, int erp
, int short_preamble
,
1821 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data
*sdata
,
1822 bool bss_notify
, bool enable_qos
);
1823 void ieee80211_xmit(struct ieee80211_sub_if_data
*sdata
,
1824 struct sta_info
*sta
, struct sk_buff
*skb
);
1826 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data
*sdata
,
1827 struct sk_buff
*skb
, int tid
,
1828 enum nl80211_band band
);
1831 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data
*sdata
,
1832 struct sk_buff
*skb
, int tid
,
1833 enum nl80211_band band
)
1836 __ieee80211_tx_skb_tid_band(sdata
, skb
, tid
, band
);
1840 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data
*sdata
,
1841 struct sk_buff
*skb
, int tid
)
1843 struct ieee80211_chanctx_conf
*chanctx_conf
;
1846 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
1847 if (WARN_ON(!chanctx_conf
)) {
1853 __ieee80211_tx_skb_tid_band(sdata
, skb
, tid
,
1854 chanctx_conf
->def
.chan
->band
);
1858 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data
*sdata
,
1859 struct sk_buff
*skb
)
1861 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1862 ieee80211_tx_skb_tid(sdata
, skb
, 7);
1865 u32
ieee802_11_parse_elems_crc(const u8
*start
, size_t len
, bool action
,
1866 struct ieee802_11_elems
*elems
,
1867 u64 filter
, u32 crc
);
1868 static inline void ieee802_11_parse_elems(const u8
*start
, size_t len
,
1870 struct ieee802_11_elems
*elems
)
1872 ieee802_11_parse_elems_crc(start
, len
, action
, elems
, 0, 0);
1876 extern const int ieee802_1d_to_ac
[8];
1878 static inline int ieee80211_ac_from_tid(int tid
)
1880 return ieee802_1d_to_ac
[tid
& 7];
1883 void ieee80211_dynamic_ps_enable_work(struct work_struct
*work
);
1884 void ieee80211_dynamic_ps_disable_work(struct work_struct
*work
);
1885 void ieee80211_dynamic_ps_timer(unsigned long data
);
1886 void ieee80211_send_nullfunc(struct ieee80211_local
*local
,
1887 struct ieee80211_sub_if_data
*sdata
,
1889 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data
*sdata
,
1890 struct ieee80211_hdr
*hdr
);
1891 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data
*sdata
,
1892 struct ieee80211_hdr
*hdr
, bool ack
, u16 tx_time
);
1894 void ieee80211_wake_queues_by_reason(struct ieee80211_hw
*hw
,
1895 unsigned long queues
,
1896 enum queue_stop_reason reason
,
1898 void ieee80211_stop_vif_queues(struct ieee80211_local
*local
,
1899 struct ieee80211_sub_if_data
*sdata
,
1900 enum queue_stop_reason reason
);
1901 void ieee80211_wake_vif_queues(struct ieee80211_local
*local
,
1902 struct ieee80211_sub_if_data
*sdata
,
1903 enum queue_stop_reason reason
);
1904 void ieee80211_stop_queues_by_reason(struct ieee80211_hw
*hw
,
1905 unsigned long queues
,
1906 enum queue_stop_reason reason
,
1908 void ieee80211_wake_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1909 enum queue_stop_reason reason
,
1911 void ieee80211_stop_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1912 enum queue_stop_reason reason
,
1914 void ieee80211_propagate_queue_wake(struct ieee80211_local
*local
, int queue
);
1915 void ieee80211_add_pending_skb(struct ieee80211_local
*local
,
1916 struct sk_buff
*skb
);
1917 void ieee80211_add_pending_skbs(struct ieee80211_local
*local
,
1918 struct sk_buff_head
*skbs
);
1919 void ieee80211_flush_queues(struct ieee80211_local
*local
,
1920 struct ieee80211_sub_if_data
*sdata
, bool drop
);
1921 void __ieee80211_flush_queues(struct ieee80211_local
*local
,
1922 struct ieee80211_sub_if_data
*sdata
,
1923 unsigned int queues
, bool drop
);
1925 static inline bool ieee80211_can_run_worker(struct ieee80211_local
*local
)
1928 * If quiescing is set, we are racing with __ieee80211_suspend.
1929 * __ieee80211_suspend flushes the workers after setting quiescing,
1930 * and we check quiescing / suspended before enqueing new workers.
1931 * We should abort the worker to avoid the races below.
1933 if (local
->quiescing
)
1937 * We might already be suspended if the following scenario occurs:
1938 * __ieee80211_suspend Control path
1940 * if (local->quiescing)
1942 * local->quiescing = true;
1943 * flush_workqueue();
1945 * local->suspended = true;
1946 * local->quiescing = false;
1947 * worker starts running...
1949 if (local
->suspended
)
1955 int ieee80211_txq_setup_flows(struct ieee80211_local
*local
);
1956 void ieee80211_txq_teardown_flows(struct ieee80211_local
*local
);
1957 void ieee80211_txq_init(struct ieee80211_sub_if_data
*sdata
,
1958 struct sta_info
*sta
,
1959 struct txq_info
*txq
, int tid
);
1960 void ieee80211_txq_purge(struct ieee80211_local
*local
,
1961 struct txq_info
*txqi
);
1962 void ieee80211_send_auth(struct ieee80211_sub_if_data
*sdata
,
1963 u16 transaction
, u16 auth_alg
, u16 status
,
1964 const u8
*extra
, size_t extra_len
, const u8
*bssid
,
1965 const u8
*da
, const u8
*key
, u8 key_len
, u8 key_idx
,
1967 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data
*sdata
,
1968 const u8
*bssid
, u16 stype
, u16 reason
,
1969 bool send_frame
, u8
*frame_buf
);
1970 int ieee80211_build_preq_ies(struct ieee80211_local
*local
, u8
*buffer
,
1972 struct ieee80211_scan_ies
*ie_desc
,
1973 const u8
*ie
, size_t ie_len
,
1974 u8 bands_used
, u32
*rate_masks
,
1975 struct cfg80211_chan_def
*chandef
);
1976 struct sk_buff
*ieee80211_build_probe_req(struct ieee80211_sub_if_data
*sdata
,
1977 const u8
*src
, const u8
*dst
,
1979 struct ieee80211_channel
*chan
,
1980 const u8
*ssid
, size_t ssid_len
,
1981 const u8
*ie
, size_t ie_len
,
1983 void ieee80211_send_probe_req(struct ieee80211_sub_if_data
*sdata
,
1984 const u8
*src
, const u8
*dst
,
1985 const u8
*ssid
, size_t ssid_len
,
1986 const u8
*ie
, size_t ie_len
,
1987 u32 ratemask
, bool directed
, u32 tx_flags
,
1988 struct ieee80211_channel
*channel
, bool scan
);
1990 u32
ieee80211_sta_get_rates(struct ieee80211_sub_if_data
*sdata
,
1991 struct ieee802_11_elems
*elems
,
1992 enum nl80211_band band
, u32
*basic_rates
);
1993 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data
*sdata
,
1994 enum ieee80211_smps_mode smps_mode
);
1995 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data
*sdata
,
1996 enum ieee80211_smps_mode smps_mode
);
1997 void ieee80211_recalc_smps(struct ieee80211_sub_if_data
*sdata
);
1998 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data
*sdata
);
2000 size_t ieee80211_ie_split_vendor(const u8
*ies
, size_t ielen
, size_t offset
);
2001 u8
*ieee80211_ie_build_ht_cap(u8
*pos
, struct ieee80211_sta_ht_cap
*ht_cap
,
2003 u8
*ieee80211_ie_build_ht_oper(u8
*pos
, struct ieee80211_sta_ht_cap
*ht_cap
,
2004 const struct cfg80211_chan_def
*chandef
,
2005 u16 prot_mode
, bool rifs_mode
);
2006 u8
*ieee80211_ie_build_vht_cap(u8
*pos
, struct ieee80211_sta_vht_cap
*vht_cap
,
2008 u8
*ieee80211_ie_build_vht_oper(u8
*pos
, struct ieee80211_sta_vht_cap
*vht_cap
,
2009 const struct cfg80211_chan_def
*chandef
);
2010 int ieee80211_parse_bitrates(struct cfg80211_chan_def
*chandef
,
2011 const struct ieee80211_supported_band
*sband
,
2012 const u8
*srates
, int srates_len
, u32
*rates
);
2013 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data
*sdata
,
2014 struct sk_buff
*skb
, bool need_basic
,
2015 enum nl80211_band band
);
2016 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data
*sdata
,
2017 struct sk_buff
*skb
, bool need_basic
,
2018 enum nl80211_band band
);
2019 u8
*ieee80211_add_wmm_info_ie(u8
*buf
, u8 qosinfo
);
2021 /* channel management */
2022 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation
*ht_oper
,
2023 struct cfg80211_chan_def
*chandef
);
2024 bool ieee80211_chandef_vht_oper(const struct ieee80211_vht_operation
*oper
,
2025 struct cfg80211_chan_def
*chandef
);
2026 u32
ieee80211_chandef_downgrade(struct cfg80211_chan_def
*c
);
2029 ieee80211_vif_use_channel(struct ieee80211_sub_if_data
*sdata
,
2030 const struct cfg80211_chan_def
*chandef
,
2031 enum ieee80211_chanctx_mode mode
);
2033 ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data
*sdata
,
2034 const struct cfg80211_chan_def
*chandef
,
2035 enum ieee80211_chanctx_mode mode
,
2036 bool radar_required
);
2038 ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data
*sdata
);
2039 int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data
*sdata
);
2042 ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data
*sdata
,
2043 const struct cfg80211_chan_def
*chandef
,
2045 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data
*sdata
);
2046 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data
*sdata
);
2047 void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data
*sdata
,
2049 int ieee80211_chanctx_refcount(struct ieee80211_local
*local
,
2050 struct ieee80211_chanctx
*ctx
);
2052 void ieee80211_recalc_smps_chanctx(struct ieee80211_local
*local
,
2053 struct ieee80211_chanctx
*chanctx
);
2054 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local
*local
,
2055 struct ieee80211_chanctx
*ctx
);
2056 bool ieee80211_is_radar_required(struct ieee80211_local
*local
);
2058 void ieee80211_dfs_cac_timer(unsigned long data
);
2059 void ieee80211_dfs_cac_timer_work(struct work_struct
*work
);
2060 void ieee80211_dfs_cac_cancel(struct ieee80211_local
*local
);
2061 void ieee80211_dfs_radar_detected_work(struct work_struct
*work
);
2062 int ieee80211_send_action_csa(struct ieee80211_sub_if_data
*sdata
,
2063 struct cfg80211_csa_settings
*csa_settings
);
2065 bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme
*cs
);
2066 bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme
*cs
, int n
);
2067 const struct ieee80211_cipher_scheme
*
2068 ieee80211_cs_get(struct ieee80211_local
*local
, u32 cipher
,
2069 enum nl80211_iftype iftype
);
2070 int ieee80211_cs_headroom(struct ieee80211_local
*local
,
2071 struct cfg80211_crypto_settings
*crypto
,
2072 enum nl80211_iftype iftype
);
2073 void ieee80211_recalc_dtim(struct ieee80211_local
*local
,
2074 struct ieee80211_sub_if_data
*sdata
);
2075 int ieee80211_check_combinations(struct ieee80211_sub_if_data
*sdata
,
2076 const struct cfg80211_chan_def
*chandef
,
2077 enum ieee80211_chanctx_mode chanmode
,
2079 int ieee80211_max_num_channels(struct ieee80211_local
*local
);
2080 enum nl80211_chan_width
ieee80211_get_sta_bw(struct ieee80211_sta
*sta
);
2081 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local
*local
,
2082 struct ieee80211_chanctx
*ctx
);
2085 int ieee80211_tdls_mgmt(struct wiphy
*wiphy
, struct net_device
*dev
,
2086 const u8
*peer
, u8 action_code
, u8 dialog_token
,
2087 u16 status_code
, u32 peer_capability
,
2088 bool initiator
, const u8
*extra_ies
,
2089 size_t extra_ies_len
);
2090 int ieee80211_tdls_oper(struct wiphy
*wiphy
, struct net_device
*dev
,
2091 const u8
*peer
, enum nl80211_tdls_operation oper
);
2092 void ieee80211_tdls_peer_del_work(struct work_struct
*wk
);
2093 int ieee80211_tdls_channel_switch(struct wiphy
*wiphy
, struct net_device
*dev
,
2094 const u8
*addr
, u8 oper_class
,
2095 struct cfg80211_chan_def
*chandef
);
2096 void ieee80211_tdls_cancel_channel_switch(struct wiphy
*wiphy
,
2097 struct net_device
*dev
,
2099 void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data
*sdata
);
2100 void ieee80211_tdls_chsw_work(struct work_struct
*wk
);
2102 extern const struct ethtool_ops ieee80211_ethtool_ops
;
2104 #ifdef CONFIG_MAC80211_NOINLINE
2105 #define debug_noinline noinline
2107 #define debug_noinline
2110 #endif /* IEEE80211_I_H */