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 2013-2014 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>
37 extern const struct cfg80211_ops mac80211_config_ops
;
39 struct ieee80211_local
;
41 /* Maximum number of broadcast/multicast frames to buffer when some of the
42 * associated stations are using power saving. */
43 #define AP_MAX_BC_BUFFER 128
45 /* Maximum number of frames buffered to all STAs, including multicast frames.
46 * Note: increasing this limit increases the potential memory requirement. Each
47 * frame can be up to about 2 kB long. */
48 #define TOTAL_MAX_TX_BUFFER 512
50 /* Required encryption head and tailroom */
51 #define IEEE80211_ENCRYPT_HEADROOM 8
52 #define IEEE80211_ENCRYPT_TAILROOM 18
54 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
55 * reception of at least three fragmented frames. This limit can be increased
56 * by changing this define, at the cost of slower frame reassembly and
57 * increased memory use (about 2 kB of RAM per entry). */
58 #define IEEE80211_FRAGMENT_MAX 4
60 /* power level hasn't been configured (or set to automatic) */
61 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN
64 * Some APs experience problems when working with U-APSD. Decreasing the
65 * probability of that happening by using legacy mode for all ACs but VO isn't
68 * Cisco 4410N originally forced us to enable VO by default only because it
69 * treated non-VO ACs as legacy.
71 * However some APs (notably Netgear R7000) silently reclassify packets to
72 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval
73 * clients would never see some frames (e.g. ARP responses) or would fetch them
74 * accidentally after a long time.
76 * It makes little sense to enable u-APSD queues by default because it needs
77 * userspace applications to be aware of it to actually take advantage of the
78 * possible additional powersavings. Implicitly depending on driver autotrigger
79 * frame support doesn't make much sense.
81 #define IEEE80211_DEFAULT_UAPSD_QUEUES 0
83 #define IEEE80211_DEFAULT_MAX_SP_LEN \
84 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
86 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
88 struct ieee80211_fragment_entry
{
89 struct sk_buff_head skb_list
;
90 unsigned long first_frag_time
;
95 bool check_sequential_pn
; /* needed for CCMP/GCMP */
96 u8 last_pn
[6]; /* PN of the last fragment if CCMP was used */
100 struct ieee80211_bss
{
101 u32 device_ts_beacon
, device_ts_presp
;
104 bool uapsd_supported
;
106 #define IEEE80211_MAX_SUPP_RATES 32
107 u8 supp_rates
[IEEE80211_MAX_SUPP_RATES
];
108 size_t supp_rates_len
;
109 struct ieee80211_rate
*beacon_rate
;
112 * During association, we save an ERP value from a probe response so
113 * that we can feed ERP info to the driver when handling the
114 * association completes. these fields probably won't be up-to-date
115 * otherwise, you probably don't want to use them.
120 /* Keep track of the corruption of the last beacon/probe response. */
123 /* Keep track of what bits of information we have valid info for. */
128 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
129 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
130 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
132 * These are bss flags that are attached to a bss in the
133 * @corrupt_data field of &struct ieee80211_bss.
135 enum ieee80211_bss_corrupt_data_flags
{
136 IEEE80211_BSS_CORRUPT_BEACON
= BIT(0),
137 IEEE80211_BSS_CORRUPT_PROBE_RESP
= BIT(1)
141 * enum ieee80211_valid_data_flags - BSS valid data flags
142 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
143 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
144 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
146 * These are bss flags that are attached to a bss in the
147 * @valid_data field of &struct ieee80211_bss. They show which parts
148 * of the data structure were received as a result of an un-corrupted
149 * beacon/probe response.
151 enum ieee80211_bss_valid_data_flags
{
152 IEEE80211_BSS_VALID_WMM
= BIT(1),
153 IEEE80211_BSS_VALID_RATES
= BIT(2),
154 IEEE80211_BSS_VALID_ERP
= BIT(3)
157 typedef unsigned __bitwise__ ieee80211_tx_result
;
158 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
159 #define TX_DROP ((__force ieee80211_tx_result) 1u)
160 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
162 #define IEEE80211_TX_UNICAST BIT(1)
163 #define IEEE80211_TX_PS_BUFFERED BIT(2)
165 struct ieee80211_tx_data
{
167 struct sk_buff_head skbs
;
168 struct ieee80211_local
*local
;
169 struct ieee80211_sub_if_data
*sdata
;
170 struct sta_info
*sta
;
171 struct ieee80211_key
*key
;
172 struct ieee80211_tx_rate rate
;
178 typedef unsigned __bitwise__ ieee80211_rx_result
;
179 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
180 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
181 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
182 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
185 * enum ieee80211_packet_rx_flags - packet RX flags
186 * @IEEE80211_RX_AMSDU: a-MSDU packet
187 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
188 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
190 * These are per-frame flags that are attached to a frame in the
191 * @rx_flags field of &struct ieee80211_rx_status.
193 enum ieee80211_packet_rx_flags
{
194 IEEE80211_RX_AMSDU
= BIT(3),
195 IEEE80211_RX_MALFORMED_ACTION_FRM
= BIT(4),
196 IEEE80211_RX_DEFERRED_RELEASE
= BIT(5),
200 * enum ieee80211_rx_flags - RX data flags
202 * @IEEE80211_RX_CMNTR: received on cooked monitor already
203 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
204 * to cfg80211_report_obss_beacon().
206 * These flags are used across handling multiple interfaces
207 * for a single frame.
209 enum ieee80211_rx_flags
{
210 IEEE80211_RX_CMNTR
= BIT(0),
211 IEEE80211_RX_BEACON_REPORTED
= BIT(1),
214 struct ieee80211_rx_data
{
215 struct napi_struct
*napi
;
217 struct ieee80211_local
*local
;
218 struct ieee80211_sub_if_data
*sdata
;
219 struct sta_info
*sta
;
220 struct ieee80211_key
*key
;
225 * Index into sequence numbers array, 0..16
226 * since the last (16) is used for non-QoS,
227 * will be 16 on non-QoS frames.
232 * Index into the security IV/PN arrays, 0..16
233 * since the last (16) is used for CCMP-encrypted
234 * management frames, will be set to 16 on mgmt
235 * frames and 0 on non-QoS frames.
243 struct ieee80211_csa_settings
{
244 const u16
*counter_offsets_beacon
;
245 const u16
*counter_offsets_presp
;
247 int n_counter_offsets_beacon
;
248 int n_counter_offsets_presp
;
255 int head_len
, tail_len
;
256 struct ieee80211_meshconf_ie
*meshconf
;
257 u16 csa_counter_offsets
[IEEE80211_MAX_CSA_COUNTERS_NUM
];
258 u8 csa_current_counter
;
259 struct rcu_head rcu_head
;
263 struct rcu_head rcu_head
;
265 u16 csa_counter_offsets
[IEEE80211_MAX_CSA_COUNTERS_NUM
];
270 /* yes, this looks ugly, but guarantees that we can later use
272 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
273 u8 tim
[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID
+ 1)]
274 __aligned(__alignof__(unsigned long));
275 struct sk_buff_head bc_buf
;
276 atomic_t num_sta_ps
; /* number of stations in PS mode */
281 struct ieee80211_if_ap
{
282 struct beacon_data __rcu
*beacon
;
283 struct probe_resp __rcu
*probe_resp
;
285 /* to be used after channel switch. */
286 struct cfg80211_beacon_data
*next_beacon
;
287 struct list_head vlans
; /* write-protected with RTNL and local->mtx */
290 atomic_t num_mcast_sta
; /* number of stations receiving multicast */
291 enum ieee80211_smps_mode req_smps
, /* requested smps mode */
292 driver_smps_mode
; /* smps mode request */
294 struct work_struct request_smps_work
;
297 struct ieee80211_if_wds
{
298 struct sta_info
*sta
;
299 u8 remote_addr
[ETH_ALEN
];
302 struct ieee80211_if_vlan
{
303 struct list_head list
; /* write-protected with RTNL and local->mtx */
305 /* used for all tx if the VLAN is configured to 4-addr mode */
306 struct sta_info __rcu
*sta
;
310 __u32 fwded_mcast
; /* Mesh forwarded multicast frames */
311 __u32 fwded_unicast
; /* Mesh forwarded unicast frames */
312 __u32 fwded_frames
; /* Mesh total forwarded frames */
313 __u32 dropped_frames_ttl
; /* Not transmitted since mesh_ttl == 0*/
314 __u32 dropped_frames_no_route
; /* Not transmitted, no route found */
315 __u32 dropped_frames_congestion
;/* Not forwarded due to congestion */
318 #define PREQ_Q_F_START 0x1
319 #define PREQ_Q_F_REFRESH 0x2
320 struct mesh_preq_queue
{
321 struct list_head list
;
326 struct ieee80211_roc_work
{
327 struct list_head list
;
329 struct ieee80211_sub_if_data
*sdata
;
331 struct ieee80211_channel
*chan
;
333 bool started
, abort
, hw_begun
, notified
;
336 unsigned long start_time
;
338 u32 duration
, req_duration
;
339 struct sk_buff
*frame
;
340 u64 cookie
, mgmt_tx_cookie
;
341 enum ieee80211_roc_type type
;
344 /* flags used in struct ieee80211_if_managed.flags */
345 enum ieee80211_sta_flags
{
346 IEEE80211_STA_CONNECTION_POLL
= BIT(1),
347 IEEE80211_STA_CONTROL_PORT
= BIT(2),
348 IEEE80211_STA_DISABLE_HT
= BIT(4),
349 IEEE80211_STA_MFP_ENABLED
= BIT(6),
350 IEEE80211_STA_UAPSD_ENABLED
= BIT(7),
351 IEEE80211_STA_NULLFUNC_ACKED
= BIT(8),
352 IEEE80211_STA_RESET_SIGNAL_AVE
= BIT(9),
353 IEEE80211_STA_DISABLE_40MHZ
= BIT(10),
354 IEEE80211_STA_DISABLE_VHT
= BIT(11),
355 IEEE80211_STA_DISABLE_80P80MHZ
= BIT(12),
356 IEEE80211_STA_DISABLE_160MHZ
= BIT(13),
357 IEEE80211_STA_DISABLE_WMM
= BIT(14),
358 IEEE80211_STA_ENABLE_RRM
= BIT(15),
361 struct ieee80211_mgd_auth_data
{
362 struct cfg80211_bss
*bss
;
363 unsigned long timeout
;
365 u16 algorithm
, expected_transaction
;
367 u8 key
[WLAN_KEY_LEN_WEP104
];
370 bool timeout_started
;
372 u16 sae_trans
, sae_status
;
377 struct ieee80211_mgd_assoc_data
{
378 struct cfg80211_bss
*bss
;
379 const u8
*supp_rates
;
381 unsigned long timeout
;
385 u8 prev_bssid
[ETH_ALEN
];
386 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
392 bool timeout_started
;
396 struct ieee80211_vht_cap ap_vht_cap
;
402 struct ieee80211_sta_tx_tspec
{
403 /* timestamp of the first packet in the time slice */
404 unsigned long time_slice_start
;
406 u32 admitted_time
; /* in usecs, unlike over the air */
408 s8 up
; /* signed to be able to invalidate with -1 during teardown */
410 /* consumed TX time in microseconds in the time slice */
411 u32 consumed_tx_time
;
413 TX_TSPEC_ACTION_NONE
= 0,
414 TX_TSPEC_ACTION_DOWNGRADE
,
415 TX_TSPEC_ACTION_STOP_DOWNGRADE
,
420 DECLARE_EWMA(beacon_signal
, 16, 4)
422 struct ieee80211_if_managed
{
423 struct timer_list timer
;
424 struct timer_list conn_mon_timer
;
425 struct timer_list bcn_mon_timer
;
426 struct timer_list chswitch_timer
;
427 struct work_struct monitor_work
;
428 struct work_struct chswitch_work
;
429 struct work_struct beacon_connection_loss_work
;
430 struct work_struct csa_connection_drop_work
;
432 unsigned long beacon_timeout
;
433 unsigned long probe_timeout
;
434 int probe_send_count
;
435 bool nullfunc_failed
;
436 bool connection_loss
;
438 struct cfg80211_bss
*associated
;
439 struct ieee80211_mgd_auth_data
*auth_data
;
440 struct ieee80211_mgd_assoc_data
*assoc_data
;
446 bool powersave
; /* powersave requested for this iface */
447 bool broken_ap
; /* AP is broken -- turn off powersave */
450 enum ieee80211_smps_mode req_smps
, /* requested smps mode */
451 driver_smps_mode
; /* smps mode request */
453 struct work_struct request_smps_work
;
457 bool csa_waiting_bcn
;
458 bool csa_ignored_same_chan
;
460 bool beacon_crc_valid
;
464 bool status_received
;
468 IEEE80211_MFP_DISABLED
,
469 IEEE80211_MFP_OPTIONAL
,
470 IEEE80211_MFP_REQUIRED
471 } mfp
; /* management frame protection */
474 * Bitmask of enabled u-apsd queues,
475 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
478 unsigned int uapsd_queues
;
481 * Maximum number of buffered frames AP can deliver during a
482 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
483 * Needs a new association to take effect.
485 unsigned int uapsd_max_sp_len
;
487 int wmm_last_param_set
;
493 struct ewma_beacon_signal ave_beacon_signal
;
496 * Number of Beacon frames used in ave_beacon_signal. This can be used
497 * to avoid generating less reliable cqm events that would be based
498 * only on couple of received frames.
500 unsigned int count_beacon_signal
;
502 /* Number of times beacon loss was invoked. */
503 unsigned int beacon_loss_count
;
506 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
507 * that triggered a cqm event. 0 indicates that no event has been
508 * generated for the current association.
510 int last_cqm_event_signal
;
513 * State variables for keeping track of RSSI of the AP currently
514 * connected to and informing driver when RSSI has gone
515 * below/above a certain threshold.
517 int rssi_min_thold
, rssi_max_thold
;
518 int last_ave_beacon_signal
;
520 struct ieee80211_ht_cap ht_capa
; /* configured ht-cap over-rides */
521 struct ieee80211_ht_cap ht_capa_mask
; /* Valid parts of ht_capa */
522 struct ieee80211_vht_cap vht_capa
; /* configured VHT overrides */
523 struct ieee80211_vht_cap vht_capa_mask
; /* Valid parts of vht_capa */
526 u8 tdls_peer
[ETH_ALEN
] __aligned(2);
527 struct delayed_work tdls_peer_del_work
;
528 struct sk_buff
*orig_teardown_skb
; /* The original teardown skb */
529 struct sk_buff
*teardown_skb
; /* A copy to send through the AP */
530 spinlock_t teardown_lock
; /* To lock changing teardown_skb */
531 bool tdls_chan_switch_prohibited
;
532 bool tdls_wider_bw_prohibited
;
534 /* WMM-AC TSPEC support */
535 struct ieee80211_sta_tx_tspec tx_tspec
[IEEE80211_NUM_ACS
];
536 /* Use a separate work struct so that we can do something here
537 * while the sdata->work is flushing the queues, for example.
538 * otherwise, in scenarios where we hardly get any traffic out
539 * on the BE queue, but there's a lot of VO traffic, we might
540 * get stuck in a downgraded situation and flush takes forever.
542 struct delayed_work tx_tspec_wk
;
545 struct ieee80211_if_ibss
{
546 struct timer_list timer
;
547 struct work_struct csa_connection_drop_work
;
549 unsigned long last_scan_completed
;
558 bool userspace_handles_dfs
;
560 u8 bssid
[ETH_ALEN
] __aligned(2);
561 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
564 struct cfg80211_chan_def chandef
;
566 unsigned long ibss_join_req
;
567 /* probe response/beacon for IBSS */
568 struct beacon_data __rcu
*presp
;
570 struct ieee80211_ht_cap ht_capa
; /* configured ht-cap over-rides */
571 struct ieee80211_ht_cap ht_capa_mask
; /* Valid parts of ht_capa */
573 spinlock_t incomplete_lock
;
574 struct list_head incomplete_stations
;
577 IEEE80211_IBSS_MLME_SEARCH
,
578 IEEE80211_IBSS_MLME_JOINED
,
583 * struct ieee80211_if_ocb - OCB mode state
585 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
586 * @wrkq_flags: OCB deferred task action
587 * @incomplete_lock: delayed STA insertion lock
588 * @incomplete_stations: list of STAs waiting for delayed insertion
589 * @joined: indication if the interface is connected to an OCB network
591 struct ieee80211_if_ocb
{
592 struct timer_list housekeeping_timer
;
593 unsigned long wrkq_flags
;
595 spinlock_t incomplete_lock
;
596 struct list_head incomplete_stations
;
602 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
604 * these declarations define the interface, which enables
605 * vendor-specific mesh synchronization
608 struct ieee802_11_elems
;
609 struct ieee80211_mesh_sync_ops
{
610 void (*rx_bcn_presp
)(struct ieee80211_sub_if_data
*sdata
,
612 struct ieee80211_mgmt
*mgmt
,
613 struct ieee802_11_elems
*elems
,
614 struct ieee80211_rx_status
*rx_status
);
616 /* should be called with beacon_data under RCU read lock */
617 void (*adjust_tbtt
)(struct ieee80211_sub_if_data
*sdata
,
618 struct beacon_data
*beacon
);
619 /* add other framework functions here */
622 struct mesh_csa_settings
{
623 struct rcu_head rcu_head
;
624 struct cfg80211_csa_settings settings
;
627 struct ieee80211_if_mesh
{
628 struct timer_list housekeeping_timer
;
629 struct timer_list mesh_path_timer
;
630 struct timer_list mesh_path_root_timer
;
632 unsigned long wrkq_flags
;
633 unsigned long mbss_changed
;
635 u8 mesh_id
[IEEE80211_MAX_MESH_ID_LEN
];
637 /* Active Path Selection Protocol Identifier */
639 /* Active Path Selection Metric Identifier */
641 /* Congestion Control Mode Identifier */
643 /* Synchronization Protocol Identifier */
645 /* Authentication Protocol Identifier */
647 /* Local mesh Sequence Number */
649 /* Last used PREQ ID */
652 /* Timestamp of last SN update */
653 unsigned long last_sn_update
;
654 /* Time when it's ok to send next PERR */
655 unsigned long next_perr
;
656 /* Timestamp of last PREQ sent */
657 unsigned long last_preq
;
658 struct mesh_rmc
*rmc
;
659 spinlock_t mesh_preq_queue_lock
;
660 struct mesh_preq_queue preq_queue
;
662 struct mesh_stats mshstats
;
663 struct mesh_config mshcfg
;
664 atomic_t estab_plinks
;
666 bool accepting_plinks
;
668 struct beacon_data __rcu
*beacon
;
672 IEEE80211_MESH_SEC_NONE
= 0x0,
673 IEEE80211_MESH_SEC_AUTHED
= 0x1,
674 IEEE80211_MESH_SEC_SECURED
= 0x2,
677 /* Extensible Synchronization Framework */
678 const struct ieee80211_mesh_sync_ops
*sync_ops
;
679 s64 sync_offset_clockdrift_max
;
680 spinlock_t sync_offset_lock
;
682 /* mesh power save */
683 enum nl80211_mesh_power_mode nonpeer_pm
;
684 int ps_peers_light_sleep
;
685 int ps_peers_deep_sleep
;
687 /* Channel Switching Support */
688 struct mesh_csa_settings __rcu
*csa
;
690 IEEE80211_MESH_CSA_ROLE_NONE
,
691 IEEE80211_MESH_CSA_ROLE_INIT
,
692 IEEE80211_MESH_CSA_ROLE_REPEATER
,
697 /* offset from skb->data while building IE */
701 #ifdef CONFIG_MAC80211_MESH
702 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
703 do { (msh)->mshstats.name++; } while (0)
705 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
710 * enum ieee80211_sub_if_data_flags - virtual interface flags
712 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
713 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
714 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
715 * associated stations and deliver multicast frames both
716 * back to wireless media and to the local net stack.
717 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
718 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
719 * @IEEE80211_SDATA_MU_MIMO_OWNER: indicates interface owns MU-MIMO capability
721 enum ieee80211_sub_if_data_flags
{
722 IEEE80211_SDATA_ALLMULTI
= BIT(0),
723 IEEE80211_SDATA_OPERATING_GMODE
= BIT(2),
724 IEEE80211_SDATA_DONT_BRIDGE_PACKETS
= BIT(3),
725 IEEE80211_SDATA_DISCONNECT_RESUME
= BIT(4),
726 IEEE80211_SDATA_IN_DRIVER
= BIT(5),
727 IEEE80211_SDATA_MU_MIMO_OWNER
= BIT(6),
731 * enum ieee80211_sdata_state_bits - virtual interface state bits
732 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
733 * mirrors netif_running() but is separate for interface type
734 * change handling while the interface is up
735 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
736 * mode, so queues are stopped
737 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
738 * to offchannel, reset when offchannel returns
740 enum ieee80211_sdata_state_bits
{
742 SDATA_STATE_OFFCHANNEL
,
743 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED
,
747 * enum ieee80211_chanctx_mode - channel context configuration mode
749 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
750 * multiple interfaces
751 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
752 * only by a single interface. This can be used for example for
753 * non-fixed channel IBSS.
755 enum ieee80211_chanctx_mode
{
756 IEEE80211_CHANCTX_SHARED
,
757 IEEE80211_CHANCTX_EXCLUSIVE
761 * enum ieee80211_chanctx_replace_state - channel context replacement state
763 * This is used for channel context in-place reservations that require channel
764 * context switch/swap.
766 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
767 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
768 * by a (not yet registered) channel context pointed by %replace_ctx.
769 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
770 * replaces an existing channel context pointed to by %replace_ctx.
772 enum ieee80211_chanctx_replace_state
{
773 IEEE80211_CHANCTX_REPLACE_NONE
,
774 IEEE80211_CHANCTX_WILL_BE_REPLACED
,
775 IEEE80211_CHANCTX_REPLACES_OTHER
,
778 struct ieee80211_chanctx
{
779 struct list_head list
;
780 struct rcu_head rcu_head
;
782 struct list_head assigned_vifs
;
783 struct list_head reserved_vifs
;
785 enum ieee80211_chanctx_replace_state replace_state
;
786 struct ieee80211_chanctx
*replace_ctx
;
788 enum ieee80211_chanctx_mode mode
;
791 struct ieee80211_chanctx_conf conf
;
794 struct mac80211_qos_map
{
795 struct cfg80211_qos_map qos_map
;
796 struct rcu_head rcu_head
;
799 enum txq_info_flags
{
805 struct sk_buff_head queue
;
809 struct ieee80211_txq txq
;
812 struct ieee80211_sub_if_data
{
813 struct list_head list
;
815 struct wireless_dev wdev
;
818 struct list_head key_list
;
820 /* count for keys needing tailroom space allocation */
821 int crypto_tx_tailroom_needed_cnt
;
822 int crypto_tx_tailroom_pending_dec
;
823 struct delayed_work dec_tailroom_needed_wk
;
825 struct net_device
*dev
;
826 struct ieee80211_local
*local
;
834 /* Fragment table for host-based reassembly */
835 struct ieee80211_fragment_entry fragments
[IEEE80211_FRAGMENT_MAX
];
836 unsigned int fragment_next
;
838 /* TID bitmap for NoAck policy */
841 /* bit field of ACM bits (BIT(802.1D tag)) */
844 struct ieee80211_key __rcu
*keys
[NUM_DEFAULT_KEYS
+ NUM_DEFAULT_MGMT_KEYS
];
845 struct ieee80211_key __rcu
*default_unicast_key
;
846 struct ieee80211_key __rcu
*default_multicast_key
;
847 struct ieee80211_key __rcu
*default_mgmt_key
;
850 __be16 control_port_protocol
;
851 bool control_port_no_encrypt
;
852 int encrypt_headroom
;
854 atomic_t txqs_len
[IEEE80211_NUM_ACS
];
855 struct ieee80211_tx_queue_params tx_conf
[IEEE80211_NUM_ACS
];
856 struct mac80211_qos_map __rcu
*qos_map
;
858 struct work_struct csa_finalize_work
;
859 bool csa_block_tx
; /* write-protected by sdata_lock and local->mtx */
860 struct cfg80211_chan_def csa_chandef
;
862 struct list_head assigned_chanctx_list
; /* protected by chanctx_mtx */
863 struct list_head reserved_chanctx_list
; /* protected by chanctx_mtx */
865 /* context reservation -- protected with chanctx_mtx */
866 struct ieee80211_chanctx
*reserved_chanctx
;
867 struct cfg80211_chan_def reserved_chandef
;
868 bool reserved_radar_required
;
871 /* used to reconfigure hardware SM PS */
872 struct work_struct recalc_smps
;
874 struct work_struct work
;
875 struct sk_buff_head skb_queue
;
878 enum ieee80211_smps_mode smps_mode
;
880 int user_power_level
; /* in dBm */
881 int ap_power_level
; /* in dBm */
884 struct delayed_work dfs_cac_timer_work
;
887 * AP this belongs to: self in AP mode and
888 * corresponding AP in VLAN mode, NULL for
889 * all others (might be needed later in IBSS)
891 struct ieee80211_if_ap
*bss
;
893 /* bitmap of allowed (non-MCS) rate indexes for rate control */
894 u32 rc_rateidx_mask
[IEEE80211_NUM_BANDS
];
896 bool rc_has_mcs_mask
[IEEE80211_NUM_BANDS
];
897 u8 rc_rateidx_mcs_mask
[IEEE80211_NUM_BANDS
][IEEE80211_HT_MCS_MASK_LEN
];
899 bool rc_has_vht_mcs_mask
[IEEE80211_NUM_BANDS
];
900 u16 rc_rateidx_vht_mcs_mask
[IEEE80211_NUM_BANDS
][NL80211_VHT_NSS_MAX
];
903 struct ieee80211_if_ap ap
;
904 struct ieee80211_if_wds wds
;
905 struct ieee80211_if_vlan vlan
;
906 struct ieee80211_if_managed mgd
;
907 struct ieee80211_if_ibss ibss
;
908 struct ieee80211_if_mesh mesh
;
909 struct ieee80211_if_ocb ocb
;
913 #ifdef CONFIG_MAC80211_DEBUGFS
915 struct dentry
*subdir_stations
;
916 struct dentry
*default_unicast_key
;
917 struct dentry
*default_multicast_key
;
918 struct dentry
*default_mgmt_key
;
922 /* must be last, dynamically sized area in this! */
923 struct ieee80211_vif vif
;
927 struct ieee80211_sub_if_data
*vif_to_sdata(struct ieee80211_vif
*p
)
929 return container_of(p
, struct ieee80211_sub_if_data
, vif
);
932 static inline void sdata_lock(struct ieee80211_sub_if_data
*sdata
)
933 __acquires(&sdata
->wdev
.mtx
)
935 mutex_lock(&sdata
->wdev
.mtx
);
936 __acquire(&sdata
->wdev
.mtx
);
939 static inline void sdata_unlock(struct ieee80211_sub_if_data
*sdata
)
940 __releases(&sdata
->wdev
.mtx
)
942 mutex_unlock(&sdata
->wdev
.mtx
);
943 __release(&sdata
->wdev
.mtx
);
946 #define sdata_dereference(p, sdata) \
947 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
950 sdata_assert_lock(struct ieee80211_sub_if_data
*sdata
)
952 lockdep_assert_held(&sdata
->wdev
.mtx
);
955 static inline enum ieee80211_band
956 ieee80211_get_sdata_band(struct ieee80211_sub_if_data
*sdata
)
958 enum ieee80211_band band
= IEEE80211_BAND_2GHZ
;
959 struct ieee80211_chanctx_conf
*chanctx_conf
;
962 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
963 if (!WARN_ON(!chanctx_conf
))
964 band
= chanctx_conf
->def
.chan
->band
;
971 ieee80211_chandef_get_shift(struct cfg80211_chan_def
*chandef
)
973 switch (chandef
->width
) {
974 case NL80211_CHAN_WIDTH_5
:
976 case NL80211_CHAN_WIDTH_10
:
984 ieee80211_vif_get_shift(struct ieee80211_vif
*vif
)
986 struct ieee80211_chanctx_conf
*chanctx_conf
;
990 chanctx_conf
= rcu_dereference(vif
->chanctx_conf
);
992 shift
= ieee80211_chandef_get_shift(&chanctx_conf
->def
);
998 struct ieee80211_rx_agg
{
1003 enum sdata_queue_type
{
1004 IEEE80211_SDATA_QUEUE_TYPE_FRAME
= 0,
1005 IEEE80211_SDATA_QUEUE_AGG_START
= 1,
1006 IEEE80211_SDATA_QUEUE_AGG_STOP
= 2,
1007 IEEE80211_SDATA_QUEUE_RX_AGG_START
= 3,
1008 IEEE80211_SDATA_QUEUE_RX_AGG_STOP
= 4,
1012 IEEE80211_RX_MSG
= 1,
1013 IEEE80211_TX_STATUS_MSG
= 2,
1016 enum queue_stop_reason
{
1017 IEEE80211_QUEUE_STOP_REASON_DRIVER
,
1018 IEEE80211_QUEUE_STOP_REASON_PS
,
1019 IEEE80211_QUEUE_STOP_REASON_CSA
,
1020 IEEE80211_QUEUE_STOP_REASON_AGGREGATION
,
1021 IEEE80211_QUEUE_STOP_REASON_SUSPEND
,
1022 IEEE80211_QUEUE_STOP_REASON_SKB_ADD
,
1023 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL
,
1024 IEEE80211_QUEUE_STOP_REASON_FLUSH
,
1025 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN
,
1026 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID
,
1028 IEEE80211_QUEUE_STOP_REASONS
,
1031 #ifdef CONFIG_MAC80211_LEDS
1032 struct tpt_led_trigger
{
1034 const struct ieee80211_tpt_blink
*blink_table
;
1035 unsigned int blink_table_len
;
1036 struct timer_list timer
;
1037 unsigned long prev_traffic
;
1038 unsigned long tx_bytes
, rx_bytes
;
1039 unsigned int active
, want
;
1045 * mac80211 scan flags - currently active scan mode
1047 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1048 * well be on the operating channel
1049 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1050 * determine if we are on the operating channel or not
1051 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1052 * channel. This should not interrupt normal traffic.
1053 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1054 * that the scan completed.
1055 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1056 * a scan complete for an aborted scan.
1057 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1063 SCAN_ONCHANNEL_SCANNING
,
1070 * enum mac80211_scan_state - scan state machine states
1072 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1073 * determines if we should keep on scanning or switch back to the
1075 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1076 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1077 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1079 * @SCAN_RESUME: Resume the scan and scan the next channel
1080 * @SCAN_ABORT: Abort the scan and go back to operating channel
1082 enum mac80211_scan_state
{
1091 struct ieee80211_local
{
1092 /* embed the driver visible part.
1093 * don't cast (use the static inlines below), but we keep
1094 * it first anyway so they become a no-op */
1095 struct ieee80211_hw hw
;
1097 const struct ieee80211_ops
*ops
;
1100 * private workqueue to mac80211. mac80211 makes this accessible
1101 * via ieee80211_queue_work()
1103 struct workqueue_struct
*workqueue
;
1105 unsigned long queue_stop_reasons
[IEEE80211_MAX_QUEUES
];
1106 int q_stop_reasons
[IEEE80211_MAX_QUEUES
][IEEE80211_QUEUE_STOP_REASONS
];
1107 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1108 spinlock_t queue_stop_reason_lock
;
1111 int monitors
, cooked_mntrs
;
1112 /* number of interfaces with corresponding FIF_ flags */
1113 int fif_fcsfail
, fif_plcpfail
, fif_control
, fif_other_bss
, fif_pspoll
,
1116 unsigned int filter_flags
; /* FIF_* */
1118 bool wiphy_ciphers_allocated
;
1122 /* protects the aggregated multicast list and filter calls */
1123 spinlock_t filter_lock
;
1125 /* used for uploading changed mc list */
1126 struct work_struct reconfig_filter
;
1128 /* aggregated multicast list */
1129 struct netdev_hw_addr_list mc_list
;
1131 bool tim_in_locked_section
; /* see ieee80211_beacon_get() */
1134 * suspended is true if we finished all the suspend _and_ we have
1135 * not yet come up from resume. This is to be used by mac80211
1136 * to ensure driver sanity during suspend and mac80211's own
1137 * sanity. It can eventually be used for WoW as well.
1142 * Resuming is true while suspended, but when we're reprogramming the
1143 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1144 * again even though some other parts of the stack are still suspended
1145 * and we still drop received frames to avoid waking the stack.
1150 * quiescing is true during the suspend process _only_ to
1151 * ease timer cancelling etc.
1155 /* device is started */
1158 /* device is during a HW reconfig */
1161 /* wowlan is enabled -- don't reconfig on resume */
1164 struct work_struct radar_detected_work
;
1166 /* number of RX chains the hardware has */
1169 int tx_headroom
; /* required headroom for hardware/radiotap */
1171 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1172 * added to skb_queue will be processed, but frames in
1173 * skb_queue_unreliable may be dropped if the total length of these
1174 * queues increases over the limit. */
1175 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1176 struct tasklet_struct tasklet
;
1177 struct sk_buff_head skb_queue
;
1178 struct sk_buff_head skb_queue_unreliable
;
1180 spinlock_t rx_path_lock
;
1184 * The mutex only protects the list, hash table and
1185 * counter, reads are done with RCU.
1187 struct mutex sta_mtx
;
1188 spinlock_t tim_lock
;
1189 unsigned long num_sta
;
1190 struct list_head sta_list
;
1191 struct rhashtable sta_hash
;
1192 struct timer_list sta_cleanup
;
1195 struct sk_buff_head pending
[IEEE80211_MAX_QUEUES
];
1196 struct tasklet_struct tx_pending_tasklet
;
1198 atomic_t agg_queue_stop
[IEEE80211_MAX_QUEUES
];
1200 /* number of interfaces with allmulti RX */
1201 atomic_t iff_allmultis
;
1203 struct rate_control_ref
*rate_ctrl
;
1205 struct crypto_cipher
*wep_tx_tfm
;
1206 struct crypto_cipher
*wep_rx_tfm
;
1210 struct list_head interfaces
;
1211 struct mutex iflist_mtx
;
1214 * Key mutex, protects sdata's key_list and sta_info's
1215 * key pointers (write access, they're RCU.)
1217 struct mutex key_mtx
;
1219 /* mutex for scan and work locking */
1222 /* Scanning and BSS list */
1223 unsigned long scanning
;
1224 struct cfg80211_ssid scan_ssid
;
1225 struct cfg80211_scan_request
*int_scan_req
;
1226 struct cfg80211_scan_request __rcu
*scan_req
;
1227 struct ieee80211_scan_request
*hw_scan_req
;
1228 struct cfg80211_chan_def scan_chandef
;
1229 enum ieee80211_band hw_scan_band
;
1230 int scan_channel_idx
;
1232 int hw_scan_ies_bufsize
;
1234 struct work_struct sched_scan_stopped_work
;
1235 struct ieee80211_sub_if_data __rcu
*sched_scan_sdata
;
1236 struct cfg80211_sched_scan_request __rcu
*sched_scan_req
;
1237 u8 scan_addr
[ETH_ALEN
];
1239 unsigned long leave_oper_channel_time
;
1240 enum mac80211_scan_state next_scan_state
;
1241 struct delayed_work scan_work
;
1242 struct ieee80211_sub_if_data __rcu
*scan_sdata
;
1243 /* For backward compatibility only -- do not use */
1244 struct cfg80211_chan_def _oper_chandef
;
1246 /* Temporary remain-on-channel for off-channel operations */
1247 struct ieee80211_channel
*tmp_channel
;
1249 /* channel contexts */
1250 struct list_head chanctx_list
;
1251 struct mutex chanctx_mtx
;
1253 #ifdef CONFIG_MAC80211_LEDS
1254 struct led_trigger tx_led
, rx_led
, assoc_led
, radio_led
;
1255 struct led_trigger tpt_led
;
1256 atomic_t tx_led_active
, rx_led_active
, assoc_led_active
;
1257 atomic_t radio_led_active
, tpt_led_active
;
1258 struct tpt_led_trigger
*tpt_led_trigger
;
1261 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1263 /* dot11CountersTable */
1264 u32 dot11TransmittedFragmentCount
;
1265 u32 dot11MulticastTransmittedFrameCount
;
1266 u32 dot11FailedCount
;
1267 u32 dot11RetryCount
;
1268 u32 dot11MultipleRetryCount
;
1269 u32 dot11FrameDuplicateCount
;
1270 u32 dot11ReceivedFragmentCount
;
1271 u32 dot11MulticastReceivedFrameCount
;
1272 u32 dot11TransmittedFrameCount
;
1274 /* TX/RX handler statistics */
1275 unsigned int tx_handlers_drop
;
1276 unsigned int tx_handlers_queued
;
1277 unsigned int tx_handlers_drop_wep
;
1278 unsigned int tx_handlers_drop_not_assoc
;
1279 unsigned int tx_handlers_drop_unauth_port
;
1280 unsigned int rx_handlers_drop
;
1281 unsigned int rx_handlers_queued
;
1282 unsigned int rx_handlers_drop_nullfunc
;
1283 unsigned int rx_handlers_drop_defrag
;
1284 unsigned int tx_expand_skb_head
;
1285 unsigned int tx_expand_skb_head_cloned
;
1286 unsigned int rx_expand_skb_head_defrag
;
1287 unsigned int rx_handlers_fragments
;
1288 unsigned int tx_status_drop
;
1289 #define I802_DEBUG_INC(c) (c)++
1290 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1291 #define I802_DEBUG_INC(c) do { } while (0)
1292 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1295 int total_ps_buffered
; /* total number of all buffered unicast and
1296 * multicast packets for power saving stations
1300 bool offchannel_ps_enabled
;
1302 * PS can only be enabled when we have exactly one managed
1303 * interface (and monitors) in PS, this then points there.
1305 struct ieee80211_sub_if_data
*ps_sdata
;
1306 struct work_struct dynamic_ps_enable_work
;
1307 struct work_struct dynamic_ps_disable_work
;
1308 struct timer_list dynamic_ps_timer
;
1309 struct notifier_block ifa_notifier
;
1310 struct notifier_block ifa6_notifier
;
1313 * The dynamic ps timeout configured from user space via WEXT -
1314 * this will override whatever chosen by mac80211 internally.
1316 int dynamic_ps_forced_timeout
;
1318 int user_power_level
; /* in dBm, for all interfaces */
1320 enum ieee80211_smps_mode smps_mode
;
1322 struct work_struct restart_work
;
1324 #ifdef CONFIG_MAC80211_DEBUGFS
1325 struct local_debugfsdentries
{
1326 struct dentry
*rcdir
;
1327 struct dentry
*keys
;
1332 * Remain-on-channel support
1334 struct delayed_work roc_work
;
1335 struct list_head roc_list
;
1336 struct work_struct hw_roc_start
, hw_roc_done
;
1337 unsigned long hw_roc_start_time
;
1338 u64 roc_cookie_counter
;
1340 struct idr ack_status_frames
;
1341 spinlock_t ack_status_lock
;
1343 struct ieee80211_sub_if_data __rcu
*p2p_sdata
;
1345 /* virtual monitor interface */
1346 struct ieee80211_sub_if_data __rcu
*monitor_sdata
;
1347 struct cfg80211_chan_def monitor_chandef
;
1349 /* extended capabilities provided by mac80211 */
1352 /* TDLS channel switch */
1353 struct work_struct tdls_chsw_work
;
1354 struct sk_buff_head skb_queue_tdls_chsw
;
1357 static inline struct ieee80211_sub_if_data
*
1358 IEEE80211_DEV_TO_SUB_IF(struct net_device
*dev
)
1360 return netdev_priv(dev
);
1363 static inline struct ieee80211_sub_if_data
*
1364 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev
*wdev
)
1366 return container_of(wdev
, struct ieee80211_sub_if_data
, wdev
);
1369 /* this struct represents 802.11n's RA/TID combination */
1370 struct ieee80211_ra_tid
{
1375 /* this struct holds the value parsing from channel switch IE */
1376 struct ieee80211_csa_ie
{
1377 struct cfg80211_chan_def chandef
;
1384 /* Parsed Information Elements */
1385 struct ieee802_11_elems
{
1389 /* pointers to IEs */
1390 const struct ieee80211_tdls_lnkie
*lnk_id
;
1391 const struct ieee80211_ch_switch_timing
*ch_sw_timing
;
1392 const u8
*ext_capab
;
1394 const u8
*supp_rates
;
1395 const u8
*ds_params
;
1396 const struct ieee80211_tim_ie
*tim
;
1397 const u8
*challenge
;
1400 const u8
*ext_supp_rates
;
1402 const u8
*wmm_param
;
1403 const struct ieee80211_ht_cap
*ht_cap_elem
;
1404 const struct ieee80211_ht_operation
*ht_operation
;
1405 const struct ieee80211_vht_cap
*vht_cap_elem
;
1406 const struct ieee80211_vht_operation
*vht_operation
;
1407 const struct ieee80211_meshconf_ie
*mesh_config
;
1410 const __le16
*awake_window
;
1414 const struct ieee80211_rann_ie
*rann
;
1415 const struct ieee80211_channel_sw_ie
*ch_switch_ie
;
1416 const struct ieee80211_ext_chansw_ie
*ext_chansw_ie
;
1417 const struct ieee80211_wide_bw_chansw_ie
*wide_bw_chansw_ie
;
1418 const u8
*country_elem
;
1419 const u8
*pwr_constr_elem
;
1420 const u8
*cisco_dtpc_elem
;
1421 const struct ieee80211_timeout_interval_ie
*timeout_int
;
1422 const u8
*opmode_notif
;
1423 const struct ieee80211_sec_chan_offs_ie
*sec_chan_offs
;
1424 const struct ieee80211_mesh_chansw_params_ie
*mesh_chansw_params_ie
;
1426 /* length of them, respectively */
1433 u8 ext_supp_rates_len
;
1441 u8 country_elem_len
;
1443 /* whether a parse error occurred while retrieving these elements */
1447 static inline struct ieee80211_local
*hw_to_local(
1448 struct ieee80211_hw
*hw
)
1450 return container_of(hw
, struct ieee80211_local
, hw
);
1453 static inline struct txq_info
*to_txq_info(struct ieee80211_txq
*txq
)
1455 return container_of(txq
, struct txq_info
, txq
);
1458 static inline int ieee80211_bssid_match(const u8
*raddr
, const u8
*addr
)
1460 return ether_addr_equal(raddr
, addr
) ||
1461 is_broadcast_ether_addr(raddr
);
1465 ieee80211_have_rx_timestamp(struct ieee80211_rx_status
*status
)
1467 WARN_ON_ONCE(status
->flag
& RX_FLAG_MACTIME_START
&&
1468 status
->flag
& RX_FLAG_MACTIME_END
);
1469 return status
->flag
& (RX_FLAG_MACTIME_START
| RX_FLAG_MACTIME_END
);
1472 u64
ieee80211_calculate_rx_timestamp(struct ieee80211_local
*local
,
1473 struct ieee80211_rx_status
*status
,
1474 unsigned int mpdu_len
,
1475 unsigned int mpdu_offset
);
1476 int ieee80211_hw_config(struct ieee80211_local
*local
, u32 changed
);
1477 void ieee80211_tx_set_protected(struct ieee80211_tx_data
*tx
);
1478 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data
*sdata
,
1480 void ieee80211_configure_filter(struct ieee80211_local
*local
);
1481 u32
ieee80211_reset_erp_info(struct ieee80211_sub_if_data
*sdata
);
1483 u64
ieee80211_mgmt_tx_cookie(struct ieee80211_local
*local
);
1484 int ieee80211_attach_ack_skb(struct ieee80211_local
*local
, struct sk_buff
*skb
,
1485 u64
*cookie
, gfp_t gfp
);
1488 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
1489 int ieee80211_mgd_auth(struct ieee80211_sub_if_data
*sdata
,
1490 struct cfg80211_auth_request
*req
);
1491 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data
*sdata
,
1492 struct cfg80211_assoc_request
*req
);
1493 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data
*sdata
,
1494 struct cfg80211_deauth_request
*req
);
1495 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data
*sdata
,
1496 struct cfg80211_disassoc_request
*req
);
1497 void ieee80211_send_pspoll(struct ieee80211_local
*local
,
1498 struct ieee80211_sub_if_data
*sdata
);
1499 void ieee80211_recalc_ps(struct ieee80211_local
*local
);
1500 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data
*sdata
);
1501 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data
*sdata
);
1502 void ieee80211_sta_work(struct ieee80211_sub_if_data
*sdata
);
1503 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1504 struct sk_buff
*skb
);
1505 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data
*sdata
);
1506 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data
*sdata
);
1507 void ieee80211_mgd_stop(struct ieee80211_sub_if_data
*sdata
);
1508 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data
*sdata
,
1509 __le16 fc
, bool acked
);
1510 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data
*sdata
);
1511 void ieee80211_sta_restart(struct ieee80211_sub_if_data
*sdata
);
1512 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data
*sdata
);
1515 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local
*local
);
1516 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
1517 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data
*sdata
,
1518 const u8
*bssid
, const u8
*addr
, u32 supp_rates
);
1519 int ieee80211_ibss_join(struct ieee80211_sub_if_data
*sdata
,
1520 struct cfg80211_ibss_params
*params
);
1521 int ieee80211_ibss_leave(struct ieee80211_sub_if_data
*sdata
);
1522 void ieee80211_ibss_work(struct ieee80211_sub_if_data
*sdata
);
1523 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1524 struct sk_buff
*skb
);
1525 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data
*sdata
,
1526 struct cfg80211_csa_settings
*csa_settings
);
1527 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data
*sdata
);
1528 void ieee80211_ibss_stop(struct ieee80211_sub_if_data
*sdata
);
1531 void ieee80211_ocb_work(struct ieee80211_sub_if_data
*sdata
);
1532 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data
*sdata
,
1533 const u8
*bssid
, const u8
*addr
, u32 supp_rates
);
1534 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
1535 int ieee80211_ocb_join(struct ieee80211_sub_if_data
*sdata
,
1536 struct ocb_setup
*setup
);
1537 int ieee80211_ocb_leave(struct ieee80211_sub_if_data
*sdata
);
1540 void ieee80211_mesh_work(struct ieee80211_sub_if_data
*sdata
);
1541 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1542 struct sk_buff
*skb
);
1543 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data
*sdata
,
1544 struct cfg80211_csa_settings
*csa_settings
);
1545 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data
*sdata
);
1547 /* scan/BSS handling */
1548 void ieee80211_scan_work(struct work_struct
*work
);
1549 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data
*sdata
,
1550 const u8
*ssid
, u8 ssid_len
,
1551 struct ieee80211_channel
**channels
,
1552 unsigned int n_channels
,
1553 enum nl80211_bss_scan_width scan_width
);
1554 int ieee80211_request_scan(struct ieee80211_sub_if_data
*sdata
,
1555 struct cfg80211_scan_request
*req
);
1556 void ieee80211_scan_cancel(struct ieee80211_local
*local
);
1557 void ieee80211_run_deferred_scan(struct ieee80211_local
*local
);
1558 void ieee80211_scan_rx(struct ieee80211_local
*local
, struct sk_buff
*skb
);
1560 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local
*local
);
1561 struct ieee80211_bss
*
1562 ieee80211_bss_info_update(struct ieee80211_local
*local
,
1563 struct ieee80211_rx_status
*rx_status
,
1564 struct ieee80211_mgmt
*mgmt
,
1566 struct ieee802_11_elems
*elems
,
1567 struct ieee80211_channel
*channel
);
1568 void ieee80211_rx_bss_put(struct ieee80211_local
*local
,
1569 struct ieee80211_bss
*bss
);
1571 /* scheduled scan handling */
1573 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data
*sdata
,
1574 struct cfg80211_sched_scan_request
*req
);
1575 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data
*sdata
,
1576 struct cfg80211_sched_scan_request
*req
);
1577 int ieee80211_request_sched_scan_stop(struct ieee80211_local
*local
);
1578 void ieee80211_sched_scan_end(struct ieee80211_local
*local
);
1579 void ieee80211_sched_scan_stopped_work(struct work_struct
*work
);
1581 /* off-channel/mgmt-tx */
1582 void ieee80211_offchannel_stop_vifs(struct ieee80211_local
*local
);
1583 void ieee80211_offchannel_return(struct ieee80211_local
*local
);
1584 void ieee80211_roc_setup(struct ieee80211_local
*local
);
1585 void ieee80211_start_next_roc(struct ieee80211_local
*local
);
1586 void ieee80211_roc_purge(struct ieee80211_local
*local
,
1587 struct ieee80211_sub_if_data
*sdata
);
1588 int ieee80211_remain_on_channel(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
1589 struct ieee80211_channel
*chan
,
1590 unsigned int duration
, u64
*cookie
);
1591 int ieee80211_cancel_remain_on_channel(struct wiphy
*wiphy
,
1592 struct wireless_dev
*wdev
, u64 cookie
);
1593 int ieee80211_mgmt_tx(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
1594 struct cfg80211_mgmt_tx_params
*params
, u64
*cookie
);
1595 int ieee80211_mgmt_tx_cancel_wait(struct wiphy
*wiphy
,
1596 struct wireless_dev
*wdev
, u64 cookie
);
1598 /* channel switch handling */
1599 void ieee80211_csa_finalize_work(struct work_struct
*work
);
1600 int ieee80211_channel_switch(struct wiphy
*wiphy
, struct net_device
*dev
,
1601 struct cfg80211_csa_settings
*params
);
1603 /* interface handling */
1604 int ieee80211_iface_init(void);
1605 void ieee80211_iface_exit(void);
1606 int ieee80211_if_add(struct ieee80211_local
*local
, const char *name
,
1607 unsigned char name_assign_type
,
1608 struct wireless_dev
**new_wdev
, enum nl80211_iftype type
,
1609 struct vif_params
*params
);
1610 int ieee80211_if_change_type(struct ieee80211_sub_if_data
*sdata
,
1611 enum nl80211_iftype type
);
1612 void ieee80211_if_remove(struct ieee80211_sub_if_data
*sdata
);
1613 void ieee80211_remove_interfaces(struct ieee80211_local
*local
);
1614 u32
ieee80211_idle_off(struct ieee80211_local
*local
);
1615 void ieee80211_recalc_idle(struct ieee80211_local
*local
);
1616 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data
*sdata
,
1618 int ieee80211_do_open(struct wireless_dev
*wdev
, bool coming_up
);
1619 void ieee80211_sdata_stop(struct ieee80211_sub_if_data
*sdata
);
1620 int ieee80211_add_virtual_monitor(struct ieee80211_local
*local
);
1621 void ieee80211_del_virtual_monitor(struct ieee80211_local
*local
);
1623 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data
*sdata
);
1624 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data
*sdata
,
1627 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data
*sdata
)
1629 return test_bit(SDATA_STATE_RUNNING
, &sdata
->state
);
1633 void ieee80211_clear_tx_pending(struct ieee80211_local
*local
);
1634 void ieee80211_tx_pending(unsigned long data
);
1635 netdev_tx_t
ieee80211_monitor_start_xmit(struct sk_buff
*skb
,
1636 struct net_device
*dev
);
1637 netdev_tx_t
ieee80211_subif_start_xmit(struct sk_buff
*skb
,
1638 struct net_device
*dev
);
1639 void __ieee80211_subif_start_xmit(struct sk_buff
*skb
,
1640 struct net_device
*dev
,
1642 void ieee80211_purge_tx_queue(struct ieee80211_hw
*hw
,
1643 struct sk_buff_head
*skbs
);
1645 ieee80211_build_data_template(struct ieee80211_sub_if_data
*sdata
,
1646 struct sk_buff
*skb
, u32 info_flags
);
1647 void ieee80211_tx_monitor(struct ieee80211_local
*local
, struct sk_buff
*skb
,
1648 struct ieee80211_supported_band
*sband
,
1649 int retry_count
, int shift
, bool send_to_cooked
);
1651 void ieee80211_check_fast_xmit(struct sta_info
*sta
);
1652 void ieee80211_check_fast_xmit_all(struct ieee80211_local
*local
);
1653 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data
*sdata
);
1654 void ieee80211_clear_fast_xmit(struct sta_info
*sta
);
1657 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data
*sdata
,
1658 struct ieee80211_sta_ht_cap
*ht_cap
);
1659 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data
*sdata
,
1660 struct ieee80211_supported_band
*sband
,
1661 const struct ieee80211_ht_cap
*ht_cap_ie
,
1662 struct sta_info
*sta
);
1663 void ieee80211_send_delba(struct ieee80211_sub_if_data
*sdata
,
1664 const u8
*da
, u16 tid
,
1665 u16 initiator
, u16 reason_code
);
1666 int ieee80211_send_smps_action(struct ieee80211_sub_if_data
*sdata
,
1667 enum ieee80211_smps_mode smps
, const u8
*da
,
1669 void ieee80211_request_smps_ap_work(struct work_struct
*work
);
1670 void ieee80211_request_smps_mgd_work(struct work_struct
*work
);
1671 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old
,
1672 enum ieee80211_smps_mode smps_mode_new
);
1674 void ___ieee80211_stop_rx_ba_session(struct sta_info
*sta
, u16 tid
,
1675 u16 initiator
, u16 reason
, bool stop
);
1676 void __ieee80211_stop_rx_ba_session(struct sta_info
*sta
, u16 tid
,
1677 u16 initiator
, u16 reason
, bool stop
);
1678 void __ieee80211_start_rx_ba_session(struct sta_info
*sta
,
1679 u8 dialog_token
, u16 timeout
,
1680 u16 start_seq_num
, u16 ba_policy
, u16 tid
,
1681 u16 buf_size
, bool tx
, bool auto_seq
);
1682 void ieee80211_sta_tear_down_BA_sessions(struct sta_info
*sta
,
1683 enum ieee80211_agg_stop_reason reason
);
1684 void ieee80211_process_delba(struct ieee80211_sub_if_data
*sdata
,
1685 struct sta_info
*sta
,
1686 struct ieee80211_mgmt
*mgmt
, size_t len
);
1687 void ieee80211_process_addba_resp(struct ieee80211_local
*local
,
1688 struct sta_info
*sta
,
1689 struct ieee80211_mgmt
*mgmt
,
1691 void ieee80211_process_addba_request(struct ieee80211_local
*local
,
1692 struct sta_info
*sta
,
1693 struct ieee80211_mgmt
*mgmt
,
1696 int __ieee80211_stop_tx_ba_session(struct sta_info
*sta
, u16 tid
,
1697 enum ieee80211_agg_stop_reason reason
);
1698 int ___ieee80211_stop_tx_ba_session(struct sta_info
*sta
, u16 tid
,
1699 enum ieee80211_agg_stop_reason reason
);
1700 void ieee80211_start_tx_ba_cb(struct ieee80211_vif
*vif
, u8
*ra
, u16 tid
);
1701 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif
*vif
, u8
*ra
, u8 tid
);
1702 void ieee80211_ba_session_work(struct work_struct
*work
);
1703 void ieee80211_tx_ba_session_handle_start(struct sta_info
*sta
, int tid
);
1704 void ieee80211_release_reorder_timeout(struct sta_info
*sta
, int tid
);
1706 u8
ieee80211_mcs_to_chains(const struct ieee80211_mcs_info
*mcs
);
1710 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data
*sdata
,
1711 struct ieee80211_supported_band
*sband
,
1712 const struct ieee80211_vht_cap
*vht_cap_ie
,
1713 struct sta_info
*sta
);
1714 enum ieee80211_sta_rx_bandwidth
ieee80211_sta_cap_rx_bw(struct sta_info
*sta
);
1715 enum ieee80211_sta_rx_bandwidth
ieee80211_sta_cur_vht_bw(struct sta_info
*sta
);
1716 void ieee80211_sta_set_rx_nss(struct sta_info
*sta
);
1717 u32
__ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data
*sdata
,
1718 struct sta_info
*sta
, u8 opmode
,
1719 enum ieee80211_band band
);
1720 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data
*sdata
,
1721 struct sta_info
*sta
, u8 opmode
,
1722 enum ieee80211_band band
);
1723 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data
*sdata
,
1724 struct ieee80211_sta_vht_cap
*vht_cap
);
1725 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap
,
1726 u16 vht_mask
[NL80211_VHT_NSS_MAX
]);
1728 /* Spectrum management */
1729 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data
*sdata
,
1730 struct ieee80211_mgmt
*mgmt
,
1733 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
1734 * @sdata: the sdata of the interface which has received the frame
1735 * @elems: parsed 802.11 elements received with the frame
1736 * @current_band: indicates the current band
1737 * @sta_flags: contains information about own capabilities and restrictions
1738 * to decide which channel switch announcements can be accepted. Only the
1739 * following subset of &enum ieee80211_sta_flags are evaluated:
1740 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
1741 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
1742 * %IEEE80211_STA_DISABLE_160MHZ.
1743 * @bssid: the currently connected bssid (for reporting)
1744 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
1745 All of them will be filled with if success only.
1746 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
1748 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data
*sdata
,
1749 struct ieee802_11_elems
*elems
,
1750 enum ieee80211_band current_band
,
1751 u32 sta_flags
, u8
*bssid
,
1752 struct ieee80211_csa_ie
*csa_ie
);
1754 /* Suspend/resume and hw reconfiguration */
1755 int ieee80211_reconfig(struct ieee80211_local
*local
);
1756 void ieee80211_stop_device(struct ieee80211_local
*local
);
1758 int __ieee80211_suspend(struct ieee80211_hw
*hw
,
1759 struct cfg80211_wowlan
*wowlan
);
1761 static inline int __ieee80211_resume(struct ieee80211_hw
*hw
)
1763 struct ieee80211_local
*local
= hw_to_local(hw
);
1765 WARN(test_bit(SCAN_HW_SCANNING
, &local
->scanning
) &&
1766 !test_bit(SCAN_COMPLETED
, &local
->scanning
),
1767 "%s: resume with hardware scan still in progress\n",
1768 wiphy_name(hw
->wiphy
));
1770 return ieee80211_reconfig(hw_to_local(hw
));
1773 /* utility functions/constants */
1774 extern const void *const mac80211_wiphy_privid
; /* for wiphy privid */
1775 int ieee80211_frame_duration(enum ieee80211_band band
, size_t len
,
1776 int rate
, int erp
, int short_preamble
,
1778 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data
*sdata
,
1779 bool bss_notify
, bool enable_qos
);
1780 void ieee80211_xmit(struct ieee80211_sub_if_data
*sdata
,
1781 struct sta_info
*sta
, struct sk_buff
*skb
);
1783 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data
*sdata
,
1784 struct sk_buff
*skb
, int tid
,
1785 enum ieee80211_band band
);
1788 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data
*sdata
,
1789 struct sk_buff
*skb
, int tid
,
1790 enum ieee80211_band band
)
1793 __ieee80211_tx_skb_tid_band(sdata
, skb
, tid
, band
);
1797 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data
*sdata
,
1798 struct sk_buff
*skb
, int tid
)
1800 struct ieee80211_chanctx_conf
*chanctx_conf
;
1803 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
1804 if (WARN_ON(!chanctx_conf
)) {
1810 __ieee80211_tx_skb_tid_band(sdata
, skb
, tid
,
1811 chanctx_conf
->def
.chan
->band
);
1815 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data
*sdata
,
1816 struct sk_buff
*skb
)
1818 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1819 ieee80211_tx_skb_tid(sdata
, skb
, 7);
1822 u32
ieee802_11_parse_elems_crc(const u8
*start
, size_t len
, bool action
,
1823 struct ieee802_11_elems
*elems
,
1824 u64 filter
, u32 crc
);
1825 static inline void ieee802_11_parse_elems(const u8
*start
, size_t len
,
1827 struct ieee802_11_elems
*elems
)
1829 ieee802_11_parse_elems_crc(start
, len
, action
, elems
, 0, 0);
1832 static inline bool ieee80211_rx_reorder_ready(struct sk_buff_head
*frames
)
1834 struct sk_buff
*tail
= skb_peek_tail(frames
);
1835 struct ieee80211_rx_status
*status
;
1840 status
= IEEE80211_SKB_RXCB(tail
);
1841 if (status
->flag
& RX_FLAG_AMSDU_MORE
)
1847 extern const int ieee802_1d_to_ac
[8];
1849 static inline int ieee80211_ac_from_tid(int tid
)
1851 return ieee802_1d_to_ac
[tid
& 7];
1854 void ieee80211_dynamic_ps_enable_work(struct work_struct
*work
);
1855 void ieee80211_dynamic_ps_disable_work(struct work_struct
*work
);
1856 void ieee80211_dynamic_ps_timer(unsigned long data
);
1857 void ieee80211_send_nullfunc(struct ieee80211_local
*local
,
1858 struct ieee80211_sub_if_data
*sdata
,
1860 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data
*sdata
,
1861 struct ieee80211_hdr
*hdr
);
1862 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data
*sdata
,
1863 struct ieee80211_hdr
*hdr
, bool ack
, u16 tx_time
);
1865 void ieee80211_wake_queues_by_reason(struct ieee80211_hw
*hw
,
1866 unsigned long queues
,
1867 enum queue_stop_reason reason
,
1869 void ieee80211_stop_vif_queues(struct ieee80211_local
*local
,
1870 struct ieee80211_sub_if_data
*sdata
,
1871 enum queue_stop_reason reason
);
1872 void ieee80211_wake_vif_queues(struct ieee80211_local
*local
,
1873 struct ieee80211_sub_if_data
*sdata
,
1874 enum queue_stop_reason reason
);
1875 void ieee80211_stop_queues_by_reason(struct ieee80211_hw
*hw
,
1876 unsigned long queues
,
1877 enum queue_stop_reason reason
,
1879 void ieee80211_wake_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1880 enum queue_stop_reason reason
,
1882 void ieee80211_stop_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1883 enum queue_stop_reason reason
,
1885 void ieee80211_propagate_queue_wake(struct ieee80211_local
*local
, int queue
);
1886 void ieee80211_add_pending_skb(struct ieee80211_local
*local
,
1887 struct sk_buff
*skb
);
1888 void ieee80211_add_pending_skbs(struct ieee80211_local
*local
,
1889 struct sk_buff_head
*skbs
);
1890 void ieee80211_flush_queues(struct ieee80211_local
*local
,
1891 struct ieee80211_sub_if_data
*sdata
, bool drop
);
1892 void __ieee80211_flush_queues(struct ieee80211_local
*local
,
1893 struct ieee80211_sub_if_data
*sdata
,
1894 unsigned int queues
, bool drop
);
1896 static inline bool ieee80211_can_run_worker(struct ieee80211_local
*local
)
1899 * If quiescing is set, we are racing with __ieee80211_suspend.
1900 * __ieee80211_suspend flushes the workers after setting quiescing,
1901 * and we check quiescing / suspended before enqueing new workers.
1902 * We should abort the worker to avoid the races below.
1904 if (local
->quiescing
)
1908 * We might already be suspended if the following scenario occurs:
1909 * __ieee80211_suspend Control path
1911 * if (local->quiescing)
1913 * local->quiescing = true;
1914 * flush_workqueue();
1916 * local->suspended = true;
1917 * local->quiescing = false;
1918 * worker starts running...
1920 if (local
->suspended
)
1926 void ieee80211_init_tx_queue(struct ieee80211_sub_if_data
*sdata
,
1927 struct sta_info
*sta
,
1928 struct txq_info
*txq
, int tid
);
1929 void ieee80211_send_auth(struct ieee80211_sub_if_data
*sdata
,
1930 u16 transaction
, u16 auth_alg
, u16 status
,
1931 const u8
*extra
, size_t extra_len
, const u8
*bssid
,
1932 const u8
*da
, const u8
*key
, u8 key_len
, u8 key_idx
,
1934 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data
*sdata
,
1935 const u8
*bssid
, u16 stype
, u16 reason
,
1936 bool send_frame
, u8
*frame_buf
);
1937 int ieee80211_build_preq_ies(struct ieee80211_local
*local
, u8
*buffer
,
1939 struct ieee80211_scan_ies
*ie_desc
,
1940 const u8
*ie
, size_t ie_len
,
1941 u8 bands_used
, u32
*rate_masks
,
1942 struct cfg80211_chan_def
*chandef
);
1943 struct sk_buff
*ieee80211_build_probe_req(struct ieee80211_sub_if_data
*sdata
,
1944 const u8
*src
, const u8
*dst
,
1946 struct ieee80211_channel
*chan
,
1947 const u8
*ssid
, size_t ssid_len
,
1948 const u8
*ie
, size_t ie_len
,
1950 void ieee80211_send_probe_req(struct ieee80211_sub_if_data
*sdata
,
1951 const u8
*src
, const u8
*dst
,
1952 const u8
*ssid
, size_t ssid_len
,
1953 const u8
*ie
, size_t ie_len
,
1954 u32 ratemask
, bool directed
, u32 tx_flags
,
1955 struct ieee80211_channel
*channel
, bool scan
);
1957 u32
ieee80211_sta_get_rates(struct ieee80211_sub_if_data
*sdata
,
1958 struct ieee802_11_elems
*elems
,
1959 enum ieee80211_band band
, u32
*basic_rates
);
1960 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data
*sdata
,
1961 enum ieee80211_smps_mode smps_mode
);
1962 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data
*sdata
,
1963 enum ieee80211_smps_mode smps_mode
);
1964 void ieee80211_recalc_smps(struct ieee80211_sub_if_data
*sdata
);
1965 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data
*sdata
);
1967 size_t ieee80211_ie_split_vendor(const u8
*ies
, size_t ielen
, size_t offset
);
1968 u8
*ieee80211_ie_build_ht_cap(u8
*pos
, struct ieee80211_sta_ht_cap
*ht_cap
,
1970 u8
*ieee80211_ie_build_ht_oper(u8
*pos
, struct ieee80211_sta_ht_cap
*ht_cap
,
1971 const struct cfg80211_chan_def
*chandef
,
1972 u16 prot_mode
, bool rifs_mode
);
1973 u8
*ieee80211_ie_build_vht_cap(u8
*pos
, struct ieee80211_sta_vht_cap
*vht_cap
,
1975 u8
*ieee80211_ie_build_vht_oper(u8
*pos
, struct ieee80211_sta_vht_cap
*vht_cap
,
1976 const struct cfg80211_chan_def
*chandef
);
1977 int ieee80211_parse_bitrates(struct cfg80211_chan_def
*chandef
,
1978 const struct ieee80211_supported_band
*sband
,
1979 const u8
*srates
, int srates_len
, u32
*rates
);
1980 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data
*sdata
,
1981 struct sk_buff
*skb
, bool need_basic
,
1982 enum ieee80211_band band
);
1983 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data
*sdata
,
1984 struct sk_buff
*skb
, bool need_basic
,
1985 enum ieee80211_band band
);
1986 u8
*ieee80211_add_wmm_info_ie(u8
*buf
, u8 qosinfo
);
1988 /* channel management */
1989 void ieee80211_ht_oper_to_chandef(struct ieee80211_channel
*control_chan
,
1990 const struct ieee80211_ht_operation
*ht_oper
,
1991 struct cfg80211_chan_def
*chandef
);
1992 void ieee80211_vht_oper_to_chandef(struct ieee80211_channel
*control_chan
,
1993 const struct ieee80211_vht_operation
*oper
,
1994 struct cfg80211_chan_def
*chandef
);
1995 u32
ieee80211_chandef_downgrade(struct cfg80211_chan_def
*c
);
1998 ieee80211_vif_use_channel(struct ieee80211_sub_if_data
*sdata
,
1999 const struct cfg80211_chan_def
*chandef
,
2000 enum ieee80211_chanctx_mode mode
);
2002 ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data
*sdata
,
2003 const struct cfg80211_chan_def
*chandef
,
2004 enum ieee80211_chanctx_mode mode
,
2005 bool radar_required
);
2007 ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data
*sdata
);
2008 int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data
*sdata
);
2011 ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data
*sdata
,
2012 const struct cfg80211_chan_def
*chandef
,
2014 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data
*sdata
);
2015 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data
*sdata
);
2016 void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data
*sdata
,
2018 int ieee80211_chanctx_refcount(struct ieee80211_local
*local
,
2019 struct ieee80211_chanctx
*ctx
);
2021 void ieee80211_recalc_smps_chanctx(struct ieee80211_local
*local
,
2022 struct ieee80211_chanctx
*chanctx
);
2023 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local
*local
,
2024 struct ieee80211_chanctx
*ctx
);
2025 bool ieee80211_is_radar_required(struct ieee80211_local
*local
);
2027 void ieee80211_dfs_cac_timer(unsigned long data
);
2028 void ieee80211_dfs_cac_timer_work(struct work_struct
*work
);
2029 void ieee80211_dfs_cac_cancel(struct ieee80211_local
*local
);
2030 void ieee80211_dfs_radar_detected_work(struct work_struct
*work
);
2031 int ieee80211_send_action_csa(struct ieee80211_sub_if_data
*sdata
,
2032 struct cfg80211_csa_settings
*csa_settings
);
2034 bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme
*cs
);
2035 bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme
*cs
, int n
);
2036 const struct ieee80211_cipher_scheme
*
2037 ieee80211_cs_get(struct ieee80211_local
*local
, u32 cipher
,
2038 enum nl80211_iftype iftype
);
2039 int ieee80211_cs_headroom(struct ieee80211_local
*local
,
2040 struct cfg80211_crypto_settings
*crypto
,
2041 enum nl80211_iftype iftype
);
2042 void ieee80211_recalc_dtim(struct ieee80211_local
*local
,
2043 struct ieee80211_sub_if_data
*sdata
);
2044 int ieee80211_check_combinations(struct ieee80211_sub_if_data
*sdata
,
2045 const struct cfg80211_chan_def
*chandef
,
2046 enum ieee80211_chanctx_mode chanmode
,
2048 int ieee80211_max_num_channels(struct ieee80211_local
*local
);
2049 enum nl80211_chan_width
ieee80211_get_sta_bw(struct ieee80211_sta
*sta
);
2050 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local
*local
,
2051 struct ieee80211_chanctx
*ctx
);
2054 int ieee80211_tdls_mgmt(struct wiphy
*wiphy
, struct net_device
*dev
,
2055 const u8
*peer
, u8 action_code
, u8 dialog_token
,
2056 u16 status_code
, u32 peer_capability
,
2057 bool initiator
, const u8
*extra_ies
,
2058 size_t extra_ies_len
);
2059 int ieee80211_tdls_oper(struct wiphy
*wiphy
, struct net_device
*dev
,
2060 const u8
*peer
, enum nl80211_tdls_operation oper
);
2061 void ieee80211_tdls_peer_del_work(struct work_struct
*wk
);
2062 int ieee80211_tdls_channel_switch(struct wiphy
*wiphy
, struct net_device
*dev
,
2063 const u8
*addr
, u8 oper_class
,
2064 struct cfg80211_chan_def
*chandef
);
2065 void ieee80211_tdls_cancel_channel_switch(struct wiphy
*wiphy
,
2066 struct net_device
*dev
,
2068 void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data
*sdata
);
2069 void ieee80211_tdls_chsw_work(struct work_struct
*wk
);
2071 extern const struct ethtool_ops ieee80211_ethtool_ops
;
2073 #ifdef CONFIG_MAC80211_NOINLINE
2074 #define debug_noinline noinline
2076 #define debug_noinline
2079 #endif /* IEEE80211_I_H */