1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright 2002-2005, Instant802 Networks, Inc.
4 * Copyright 2005, Devicescape Software, Inc.
5 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
6 * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net>
7 * Copyright 2013-2015 Intel Mobile Communications GmbH
8 * Copyright (C) 2018-2021 Intel Corporation
14 #include <linux/kernel.h>
15 #include <linux/device.h>
16 #include <linux/if_ether.h>
17 #include <linux/interrupt.h>
18 #include <linux/list.h>
19 #include <linux/netdevice.h>
20 #include <linux/skbuff.h>
21 #include <linux/workqueue.h>
22 #include <linux/types.h>
23 #include <linux/spinlock.h>
24 #include <linux/etherdevice.h>
25 #include <linux/leds.h>
26 #include <linux/idr.h>
27 #include <linux/rhashtable.h>
28 #include <linux/rbtree.h>
29 #include <net/ieee80211_radiotap.h>
30 #include <net/cfg80211.h>
31 #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 /* power level hasn't been configured (or set to automatic) */
55 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN
58 * Some APs experience problems when working with U-APSD. Decreasing the
59 * probability of that happening by using legacy mode for all ACs but VO isn't
62 * Cisco 4410N originally forced us to enable VO by default only because it
63 * treated non-VO ACs as legacy.
65 * However some APs (notably Netgear R7000) silently reclassify packets to
66 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval
67 * clients would never see some frames (e.g. ARP responses) or would fetch them
68 * accidentally after a long time.
70 * It makes little sense to enable u-APSD queues by default because it needs
71 * userspace applications to be aware of it to actually take advantage of the
72 * possible additional powersavings. Implicitly depending on driver autotrigger
73 * frame support doesn't make much sense.
75 #define IEEE80211_DEFAULT_UAPSD_QUEUES 0
77 #define IEEE80211_DEFAULT_MAX_SP_LEN \
78 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
80 extern const u8 ieee80211_ac_to_qos_mask
[IEEE80211_NUM_ACS
];
82 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
84 #define IEEE80211_MAX_NAN_INSTANCE_ID 255
86 struct ieee80211_bss
{
87 u32 device_ts_beacon
, device_ts_presp
;
92 #define IEEE80211_MAX_SUPP_RATES 32
93 u8 supp_rates
[IEEE80211_MAX_SUPP_RATES
];
94 size_t supp_rates_len
;
95 struct ieee80211_rate
*beacon_rate
;
100 * During association, we save an ERP value from a probe response so
101 * that we can feed ERP info to the driver when handling the
102 * association completes. these fields probably won't be up-to-date
103 * otherwise, you probably don't want to use them.
108 /* Keep track of the corruption of the last beacon/probe response. */
111 /* Keep track of what bits of information we have valid info for. */
116 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
117 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
118 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
120 * These are bss flags that are attached to a bss in the
121 * @corrupt_data field of &struct ieee80211_bss.
123 enum ieee80211_bss_corrupt_data_flags
{
124 IEEE80211_BSS_CORRUPT_BEACON
= BIT(0),
125 IEEE80211_BSS_CORRUPT_PROBE_RESP
= BIT(1)
129 * enum ieee80211_valid_data_flags - BSS valid data flags
130 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
131 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
132 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
134 * These are bss flags that are attached to a bss in the
135 * @valid_data field of &struct ieee80211_bss. They show which parts
136 * of the data structure were received as a result of an un-corrupted
137 * beacon/probe response.
139 enum ieee80211_bss_valid_data_flags
{
140 IEEE80211_BSS_VALID_WMM
= BIT(1),
141 IEEE80211_BSS_VALID_RATES
= BIT(2),
142 IEEE80211_BSS_VALID_ERP
= BIT(3)
145 typedef unsigned __bitwise ieee80211_tx_result
;
146 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
147 #define TX_DROP ((__force ieee80211_tx_result) 1u)
148 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
150 #define IEEE80211_TX_UNICAST BIT(1)
151 #define IEEE80211_TX_PS_BUFFERED BIT(2)
153 struct ieee80211_tx_data
{
155 struct sk_buff_head skbs
;
156 struct ieee80211_local
*local
;
157 struct ieee80211_sub_if_data
*sdata
;
158 struct sta_info
*sta
;
159 struct ieee80211_key
*key
;
160 struct ieee80211_tx_rate rate
;
166 typedef unsigned __bitwise ieee80211_rx_result
;
167 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
168 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
169 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
170 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
173 * enum ieee80211_packet_rx_flags - packet RX flags
174 * @IEEE80211_RX_AMSDU: a-MSDU packet
175 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
176 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
178 * These are per-frame flags that are attached to a frame in the
179 * @rx_flags field of &struct ieee80211_rx_status.
181 enum ieee80211_packet_rx_flags
{
182 IEEE80211_RX_AMSDU
= BIT(3),
183 IEEE80211_RX_MALFORMED_ACTION_FRM
= BIT(4),
184 IEEE80211_RX_DEFERRED_RELEASE
= BIT(5),
188 * enum ieee80211_rx_flags - RX data flags
190 * @IEEE80211_RX_CMNTR: received on cooked monitor already
191 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
192 * to cfg80211_report_obss_beacon().
194 * These flags are used across handling multiple interfaces
195 * for a single frame.
197 enum ieee80211_rx_flags
{
198 IEEE80211_RX_CMNTR
= BIT(0),
199 IEEE80211_RX_BEACON_REPORTED
= BIT(1),
202 struct ieee80211_rx_data
{
203 struct list_head
*list
;
205 struct ieee80211_local
*local
;
206 struct ieee80211_sub_if_data
*sdata
;
207 struct sta_info
*sta
;
208 struct ieee80211_key
*key
;
213 * Index into sequence numbers array, 0..16
214 * since the last (16) is used for non-QoS,
215 * will be 16 on non-QoS frames.
220 * Index into the security IV/PN arrays, 0..16
221 * since the last (16) is used for CCMP-encrypted
222 * management frames, will be set to 16 on mgmt
223 * frames and 0 on non-QoS frames.
233 u8 pn
[IEEE80211_CCMP_PN_LEN
];
238 struct ieee80211_csa_settings
{
239 const u16
*counter_offsets_beacon
;
240 const u16
*counter_offsets_presp
;
242 int n_counter_offsets_beacon
;
243 int n_counter_offsets_presp
;
248 struct ieee80211_color_change_settings
{
249 u16 counter_offset_beacon
;
250 u16 counter_offset_presp
;
256 int head_len
, tail_len
;
257 struct ieee80211_meshconf_ie
*meshconf
;
258 u16 cntdwn_counter_offsets
[IEEE80211_MAX_CNTDWN_COUNTERS_NUM
];
259 u8 cntdwn_current_counter
;
260 struct rcu_head rcu_head
;
264 struct rcu_head rcu_head
;
266 u16 cntdwn_counter_offsets
[IEEE80211_MAX_CNTDWN_COUNTERS_NUM
];
270 struct fils_discovery_data
{
271 struct rcu_head rcu_head
;
276 struct unsol_bcast_probe_resp_data
{
277 struct rcu_head rcu_head
;
283 /* yes, this looks ugly, but guarantees that we can later use
285 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
286 u8 tim
[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID
+ 1)]
287 __aligned(__alignof__(unsigned long));
288 struct sk_buff_head bc_buf
;
289 atomic_t num_sta_ps
; /* number of stations in PS mode */
294 struct ieee80211_if_ap
{
295 struct beacon_data __rcu
*beacon
;
296 struct probe_resp __rcu
*probe_resp
;
297 struct fils_discovery_data __rcu
*fils_discovery
;
298 struct unsol_bcast_probe_resp_data __rcu
*unsol_bcast_probe_resp
;
300 /* to be used after channel switch. */
301 struct cfg80211_beacon_data
*next_beacon
;
302 struct list_head vlans
; /* write-protected with RTNL and local->mtx */
305 atomic_t num_mcast_sta
; /* number of stations receiving multicast */
307 bool multicast_to_unicast
;
310 struct ieee80211_if_vlan
{
311 struct list_head list
; /* write-protected with RTNL and local->mtx */
313 /* used for all tx if the VLAN is configured to 4-addr mode */
314 struct sta_info __rcu
*sta
;
315 atomic_t num_mcast_sta
; /* number of stations receiving multicast */
319 __u32 fwded_mcast
; /* Mesh forwarded multicast frames */
320 __u32 fwded_unicast
; /* Mesh forwarded unicast frames */
321 __u32 fwded_frames
; /* Mesh total forwarded frames */
322 __u32 dropped_frames_ttl
; /* Not transmitted since mesh_ttl == 0*/
323 __u32 dropped_frames_no_route
; /* Not transmitted, no route found */
324 __u32 dropped_frames_congestion
;/* Not forwarded due to congestion */
327 #define PREQ_Q_F_START 0x1
328 #define PREQ_Q_F_REFRESH 0x2
329 struct mesh_preq_queue
{
330 struct list_head list
;
335 struct ieee80211_roc_work
{
336 struct list_head list
;
338 struct ieee80211_sub_if_data
*sdata
;
340 struct ieee80211_channel
*chan
;
342 bool started
, abort
, hw_begun
, notified
;
345 unsigned long start_time
;
347 u32 duration
, req_duration
;
348 struct sk_buff
*frame
;
349 u64 cookie
, mgmt_tx_cookie
;
350 enum ieee80211_roc_type type
;
353 /* flags used in struct ieee80211_if_managed.flags */
354 enum ieee80211_sta_flags
{
355 IEEE80211_STA_CONNECTION_POLL
= BIT(1),
356 IEEE80211_STA_CONTROL_PORT
= BIT(2),
357 IEEE80211_STA_DISABLE_HT
= BIT(4),
358 IEEE80211_STA_MFP_ENABLED
= BIT(6),
359 IEEE80211_STA_UAPSD_ENABLED
= BIT(7),
360 IEEE80211_STA_NULLFUNC_ACKED
= BIT(8),
361 IEEE80211_STA_RESET_SIGNAL_AVE
= BIT(9),
362 IEEE80211_STA_DISABLE_40MHZ
= BIT(10),
363 IEEE80211_STA_DISABLE_VHT
= BIT(11),
364 IEEE80211_STA_DISABLE_80P80MHZ
= BIT(12),
365 IEEE80211_STA_DISABLE_160MHZ
= BIT(13),
366 IEEE80211_STA_DISABLE_WMM
= BIT(14),
367 IEEE80211_STA_ENABLE_RRM
= BIT(15),
368 IEEE80211_STA_DISABLE_HE
= BIT(16),
371 struct ieee80211_mgd_auth_data
{
372 struct cfg80211_bss
*bss
;
373 unsigned long timeout
;
375 u16 algorithm
, expected_transaction
;
377 u8 key
[WLAN_KEY_LEN_WEP104
];
381 bool timeout_started
;
383 u16 sae_trans
, sae_status
;
388 struct ieee80211_mgd_assoc_data
{
389 struct cfg80211_bss
*bss
;
390 const u8
*supp_rates
;
392 unsigned long timeout
;
396 u8 prev_bssid
[ETH_ALEN
];
397 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
403 bool timeout_started
;
407 struct ieee80211_vht_cap ap_vht_cap
;
409 u8 fils_nonces
[2 * FILS_NONCE_LEN
];
410 u8 fils_kek
[FILS_MAX_KEK_LEN
];
417 struct ieee80211_sta_tx_tspec
{
418 /* timestamp of the first packet in the time slice */
419 unsigned long time_slice_start
;
421 u32 admitted_time
; /* in usecs, unlike over the air */
423 s8 up
; /* signed to be able to invalidate with -1 during teardown */
425 /* consumed TX time in microseconds in the time slice */
426 u32 consumed_tx_time
;
428 TX_TSPEC_ACTION_NONE
= 0,
429 TX_TSPEC_ACTION_DOWNGRADE
,
430 TX_TSPEC_ACTION_STOP_DOWNGRADE
,
435 DECLARE_EWMA(beacon_signal
, 4, 4)
437 struct ieee80211_if_managed
{
438 struct timer_list timer
;
439 struct timer_list conn_mon_timer
;
440 struct timer_list bcn_mon_timer
;
441 struct timer_list chswitch_timer
;
442 struct work_struct monitor_work
;
443 struct work_struct chswitch_work
;
444 struct work_struct beacon_connection_loss_work
;
445 struct work_struct csa_connection_drop_work
;
447 unsigned long beacon_timeout
;
448 unsigned long probe_timeout
;
449 int probe_send_count
;
450 bool nullfunc_failed
;
451 u8 connection_loss
:1,
455 struct cfg80211_bss
*associated
;
456 struct ieee80211_mgd_auth_data
*auth_data
;
457 struct ieee80211_mgd_assoc_data
*assoc_data
;
459 u8 bssid
[ETH_ALEN
] __aligned(2);
461 bool powersave
; /* powersave requested for this iface */
462 bool broken_ap
; /* AP is broken -- turn off powersave */
465 enum ieee80211_smps_mode req_smps
, /* requested smps mode */
466 driver_smps_mode
; /* smps mode request */
468 struct work_struct request_smps_work
;
472 bool csa_waiting_bcn
;
473 bool csa_ignored_same_chan
;
475 bool beacon_crc_valid
;
479 bool status_received
;
483 IEEE80211_MFP_DISABLED
,
484 IEEE80211_MFP_OPTIONAL
,
485 IEEE80211_MFP_REQUIRED
486 } mfp
; /* management frame protection */
489 * Bitmask of enabled u-apsd queues,
490 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
493 unsigned int uapsd_queues
;
496 * Maximum number of buffered frames AP can deliver during a
497 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
498 * Needs a new association to take effect.
500 unsigned int uapsd_max_sp_len
;
502 int wmm_last_param_set
;
503 int mu_edca_last_param_set
;
509 struct ewma_beacon_signal ave_beacon_signal
;
512 * Number of Beacon frames used in ave_beacon_signal. This can be used
513 * to avoid generating less reliable cqm events that would be based
514 * only on couple of received frames.
516 unsigned int count_beacon_signal
;
518 /* Number of times beacon loss was invoked. */
519 unsigned int beacon_loss_count
;
522 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
523 * that triggered a cqm event. 0 indicates that no event has been
524 * generated for the current association.
526 int last_cqm_event_signal
;
529 * State variables for keeping track of RSSI of the AP currently
530 * connected to and informing driver when RSSI has gone
531 * below/above a certain threshold.
533 int rssi_min_thold
, rssi_max_thold
;
534 int last_ave_beacon_signal
;
536 struct ieee80211_ht_cap ht_capa
; /* configured ht-cap over-rides */
537 struct ieee80211_ht_cap ht_capa_mask
; /* Valid parts of ht_capa */
538 struct ieee80211_vht_cap vht_capa
; /* configured VHT overrides */
539 struct ieee80211_vht_cap vht_capa_mask
; /* Valid parts of vht_capa */
540 struct ieee80211_s1g_cap s1g_capa
; /* configured S1G overrides */
541 struct ieee80211_s1g_cap s1g_capa_mask
; /* valid s1g_capa bits */
544 u8 tdls_peer
[ETH_ALEN
] __aligned(2);
545 struct delayed_work tdls_peer_del_work
;
546 struct sk_buff
*orig_teardown_skb
; /* The original teardown skb */
547 struct sk_buff
*teardown_skb
; /* A copy to send through the AP */
548 spinlock_t teardown_lock
; /* To lock changing teardown_skb */
549 bool tdls_chan_switch_prohibited
;
550 bool tdls_wider_bw_prohibited
;
552 /* WMM-AC TSPEC support */
553 struct ieee80211_sta_tx_tspec tx_tspec
[IEEE80211_NUM_ACS
];
554 /* Use a separate work struct so that we can do something here
555 * while the sdata->work is flushing the queues, for example.
556 * otherwise, in scenarios where we hardly get any traffic out
557 * on the BE queue, but there's a lot of VO traffic, we might
558 * get stuck in a downgraded situation and flush takes forever.
560 struct delayed_work tx_tspec_wk
;
562 /* Information elements from the last transmitted (Re)Association
566 size_t assoc_req_ies_len
;
569 struct ieee80211_if_ibss
{
570 struct timer_list timer
;
571 struct work_struct csa_connection_drop_work
;
573 unsigned long last_scan_completed
;
582 bool userspace_handles_dfs
;
584 u8 bssid
[ETH_ALEN
] __aligned(2);
585 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
588 struct cfg80211_chan_def chandef
;
590 unsigned long ibss_join_req
;
591 /* probe response/beacon for IBSS */
592 struct beacon_data __rcu
*presp
;
594 struct ieee80211_ht_cap ht_capa
; /* configured ht-cap over-rides */
595 struct ieee80211_ht_cap ht_capa_mask
; /* Valid parts of ht_capa */
597 spinlock_t incomplete_lock
;
598 struct list_head incomplete_stations
;
601 IEEE80211_IBSS_MLME_SEARCH
,
602 IEEE80211_IBSS_MLME_JOINED
,
607 * struct ieee80211_if_ocb - OCB mode state
609 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
610 * @wrkq_flags: OCB deferred task action
611 * @incomplete_lock: delayed STA insertion lock
612 * @incomplete_stations: list of STAs waiting for delayed insertion
613 * @joined: indication if the interface is connected to an OCB network
615 struct ieee80211_if_ocb
{
616 struct timer_list housekeeping_timer
;
617 unsigned long wrkq_flags
;
619 spinlock_t incomplete_lock
;
620 struct list_head incomplete_stations
;
626 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
628 * these declarations define the interface, which enables
629 * vendor-specific mesh synchronization
632 struct ieee802_11_elems
;
633 struct ieee80211_mesh_sync_ops
{
634 void (*rx_bcn_presp
)(struct ieee80211_sub_if_data
*sdata
,
636 struct ieee80211_mgmt
*mgmt
,
637 struct ieee802_11_elems
*elems
,
638 struct ieee80211_rx_status
*rx_status
);
640 /* should be called with beacon_data under RCU read lock */
641 void (*adjust_tsf
)(struct ieee80211_sub_if_data
*sdata
,
642 struct beacon_data
*beacon
);
643 /* add other framework functions here */
646 struct mesh_csa_settings
{
647 struct rcu_head rcu_head
;
648 struct cfg80211_csa_settings settings
;
654 * @known_gates: list of known mesh gates and their mpaths by the station. The
655 * gate's mpath may or may not be resolved and active.
656 * @gates_lock: protects updates to known_gates
657 * @rhead: the rhashtable containing struct mesh_paths, keyed by dest addr
658 * @walk_head: linked list containing all mesh_path objects
659 * @walk_lock: lock protecting walk_head
660 * @entries: number of entries in the table
663 struct hlist_head known_gates
;
664 spinlock_t gates_lock
;
665 struct rhashtable rhead
;
666 struct hlist_head walk_head
;
667 spinlock_t walk_lock
;
668 atomic_t entries
; /* Up to MAX_MESH_NEIGHBOURS */
671 struct ieee80211_if_mesh
{
672 struct timer_list housekeeping_timer
;
673 struct timer_list mesh_path_timer
;
674 struct timer_list mesh_path_root_timer
;
676 unsigned long wrkq_flags
;
677 unsigned long mbss_changed
;
679 bool userspace_handles_dfs
;
681 u8 mesh_id
[IEEE80211_MAX_MESH_ID_LEN
];
683 /* Active Path Selection Protocol Identifier */
685 /* Active Path Selection Metric Identifier */
687 /* Congestion Control Mode Identifier */
689 /* Synchronization Protocol Identifier */
691 /* Authentication Protocol Identifier */
693 /* Local mesh Sequence Number */
695 /* Last used PREQ ID */
698 /* Timestamp of last SN update */
699 unsigned long last_sn_update
;
700 /* Time when it's ok to send next PERR */
701 unsigned long next_perr
;
702 /* Timestamp of last PREQ sent */
703 unsigned long last_preq
;
704 struct mesh_rmc
*rmc
;
705 spinlock_t mesh_preq_queue_lock
;
706 struct mesh_preq_queue preq_queue
;
708 struct mesh_stats mshstats
;
709 struct mesh_config mshcfg
;
710 atomic_t estab_plinks
;
712 bool accepting_plinks
;
714 struct beacon_data __rcu
*beacon
;
718 IEEE80211_MESH_SEC_NONE
= 0x0,
719 IEEE80211_MESH_SEC_AUTHED
= 0x1,
720 IEEE80211_MESH_SEC_SECURED
= 0x2,
723 /* Extensible Synchronization Framework */
724 const struct ieee80211_mesh_sync_ops
*sync_ops
;
725 s64 sync_offset_clockdrift_max
;
726 spinlock_t sync_offset_lock
;
727 /* mesh power save */
728 enum nl80211_mesh_power_mode nonpeer_pm
;
729 int ps_peers_light_sleep
;
730 int ps_peers_deep_sleep
;
732 /* Channel Switching Support */
733 struct mesh_csa_settings __rcu
*csa
;
735 IEEE80211_MESH_CSA_ROLE_NONE
,
736 IEEE80211_MESH_CSA_ROLE_INIT
,
737 IEEE80211_MESH_CSA_ROLE_REPEATER
,
742 /* offset from skb->data while building IE */
745 struct mesh_table mesh_paths
;
746 struct mesh_table mpp_paths
; /* Store paths for MPP&MAP */
747 int mesh_paths_generation
;
748 int mpp_paths_generation
;
751 #ifdef CONFIG_MAC80211_MESH
752 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
753 do { (msh)->mshstats.name++; } while (0)
755 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
760 * enum ieee80211_sub_if_data_flags - virtual interface flags
762 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
763 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
764 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
765 * associated stations and deliver multicast frames both
766 * back to wireless media and to the local net stack.
767 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
768 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
770 enum ieee80211_sub_if_data_flags
{
771 IEEE80211_SDATA_ALLMULTI
= BIT(0),
772 IEEE80211_SDATA_OPERATING_GMODE
= BIT(2),
773 IEEE80211_SDATA_DONT_BRIDGE_PACKETS
= BIT(3),
774 IEEE80211_SDATA_DISCONNECT_RESUME
= BIT(4),
775 IEEE80211_SDATA_IN_DRIVER
= BIT(5),
779 * enum ieee80211_sdata_state_bits - virtual interface state bits
780 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
781 * mirrors netif_running() but is separate for interface type
782 * change handling while the interface is up
783 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
784 * mode, so queues are stopped
785 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
786 * to offchannel, reset when offchannel returns
788 enum ieee80211_sdata_state_bits
{
790 SDATA_STATE_OFFCHANNEL
,
791 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED
,
795 * enum ieee80211_chanctx_mode - channel context configuration mode
797 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
798 * multiple interfaces
799 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
800 * only by a single interface. This can be used for example for
801 * non-fixed channel IBSS.
803 enum ieee80211_chanctx_mode
{
804 IEEE80211_CHANCTX_SHARED
,
805 IEEE80211_CHANCTX_EXCLUSIVE
809 * enum ieee80211_chanctx_replace_state - channel context replacement state
811 * This is used for channel context in-place reservations that require channel
812 * context switch/swap.
814 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
815 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
816 * by a (not yet registered) channel context pointed by %replace_ctx.
817 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
818 * replaces an existing channel context pointed to by %replace_ctx.
820 enum ieee80211_chanctx_replace_state
{
821 IEEE80211_CHANCTX_REPLACE_NONE
,
822 IEEE80211_CHANCTX_WILL_BE_REPLACED
,
823 IEEE80211_CHANCTX_REPLACES_OTHER
,
826 struct ieee80211_chanctx
{
827 struct list_head list
;
828 struct rcu_head rcu_head
;
830 struct list_head assigned_vifs
;
831 struct list_head reserved_vifs
;
833 enum ieee80211_chanctx_replace_state replace_state
;
834 struct ieee80211_chanctx
*replace_ctx
;
836 enum ieee80211_chanctx_mode mode
;
839 struct ieee80211_chanctx_conf conf
;
842 struct mac80211_qos_map
{
843 struct cfg80211_qos_map qos_map
;
844 struct rcu_head rcu_head
;
847 enum txq_info_flags
{
850 IEEE80211_TXQ_NO_AMSDU
,
851 IEEE80211_TXQ_STOP_NETIF_TX
,
855 * struct txq_info - per tid queue
857 * @tin: contains packets split into multiple flows
858 * @def_flow: used as a fallback flow when a packet destined to @tin hashes to
859 * a fq_flow which is already owned by a different tin
860 * @def_cvars: codel vars for @def_flow
861 * @schedule_order: used with ieee80211_local->active_txqs
862 * @frags: used to keep fragments created after dequeue
866 struct codel_vars def_cvars
;
867 struct codel_stats cstats
;
868 struct rb_node schedule_order
;
870 struct sk_buff_head frags
;
874 struct ieee80211_txq txq
;
877 struct ieee80211_if_mntr
{
879 u8 mu_follow_addr
[ETH_ALEN
] __aligned(2);
881 struct list_head list
;
885 * struct ieee80211_if_nan - NAN state
887 * @conf: current NAN configuration
888 * @func_ids: a bitmap of available instance_id's
890 struct ieee80211_if_nan
{
891 struct cfg80211_nan_conf conf
;
893 /* protects function_inst_ids */
894 spinlock_t func_lock
;
895 struct idr function_inst_ids
;
898 struct ieee80211_sub_if_data
{
899 struct list_head list
;
901 struct wireless_dev wdev
;
904 struct list_head key_list
;
906 /* count for keys needing tailroom space allocation */
907 int crypto_tx_tailroom_needed_cnt
;
908 int crypto_tx_tailroom_pending_dec
;
909 struct delayed_work dec_tailroom_needed_wk
;
911 struct net_device
*dev
;
912 struct ieee80211_local
*local
;
920 struct ieee80211_fragment_cache frags
;
922 /* TID bitmap for NoAck policy */
925 /* bit field of ACM bits (BIT(802.1D tag)) */
928 struct ieee80211_key __rcu
*keys
[NUM_DEFAULT_KEYS
+
929 NUM_DEFAULT_MGMT_KEYS
+
930 NUM_DEFAULT_BEACON_KEYS
];
931 struct ieee80211_key __rcu
*default_unicast_key
;
932 struct ieee80211_key __rcu
*default_multicast_key
;
933 struct ieee80211_key __rcu
*default_mgmt_key
;
934 struct ieee80211_key __rcu
*default_beacon_key
;
937 __be16 control_port_protocol
;
938 bool control_port_no_encrypt
;
939 bool control_port_no_preauth
;
940 bool control_port_over_nl80211
;
941 int encrypt_headroom
;
943 atomic_t num_tx_queued
;
944 struct ieee80211_tx_queue_params tx_conf
[IEEE80211_NUM_ACS
];
945 struct mac80211_qos_map __rcu
*qos_map
;
947 struct airtime_info airtime
[IEEE80211_NUM_ACS
];
949 struct work_struct csa_finalize_work
;
950 bool csa_block_tx
; /* write-protected by sdata_lock and local->mtx */
951 struct cfg80211_chan_def csa_chandef
;
953 struct work_struct color_change_finalize_work
;
955 struct list_head assigned_chanctx_list
; /* protected by chanctx_mtx */
956 struct list_head reserved_chanctx_list
; /* protected by chanctx_mtx */
958 /* context reservation -- protected with chanctx_mtx */
959 struct ieee80211_chanctx
*reserved_chanctx
;
960 struct cfg80211_chan_def reserved_chandef
;
961 bool reserved_radar_required
;
964 /* used to reconfigure hardware SM PS */
965 struct work_struct recalc_smps
;
967 struct work_struct work
;
968 struct sk_buff_head skb_queue
;
969 struct sk_buff_head status_queue
;
972 enum ieee80211_smps_mode smps_mode
;
974 int user_power_level
; /* in dBm */
975 int ap_power_level
; /* in dBm */
978 struct delayed_work dfs_cac_timer_work
;
981 * AP this belongs to: self in AP mode and
982 * corresponding AP in VLAN mode, NULL for
983 * all others (might be needed later in IBSS)
985 struct ieee80211_if_ap
*bss
;
987 /* bitmap of allowed (non-MCS) rate indexes for rate control */
988 u32 rc_rateidx_mask
[NUM_NL80211_BANDS
];
990 bool rc_has_mcs_mask
[NUM_NL80211_BANDS
];
991 u8 rc_rateidx_mcs_mask
[NUM_NL80211_BANDS
][IEEE80211_HT_MCS_MASK_LEN
];
993 bool rc_has_vht_mcs_mask
[NUM_NL80211_BANDS
];
994 u16 rc_rateidx_vht_mcs_mask
[NUM_NL80211_BANDS
][NL80211_VHT_NSS_MAX
];
996 /* Beacon frame (non-MCS) rate (as a bitmap) */
997 u32 beacon_rateidx_mask
[NUM_NL80211_BANDS
];
998 bool beacon_rate_set
;
1001 struct ieee80211_if_ap ap
;
1002 struct ieee80211_if_vlan vlan
;
1003 struct ieee80211_if_managed mgd
;
1004 struct ieee80211_if_ibss ibss
;
1005 struct ieee80211_if_mesh mesh
;
1006 struct ieee80211_if_ocb ocb
;
1007 struct ieee80211_if_mntr mntr
;
1008 struct ieee80211_if_nan nan
;
1011 #ifdef CONFIG_MAC80211_DEBUGFS
1013 struct dentry
*subdir_stations
;
1014 struct dentry
*default_unicast_key
;
1015 struct dentry
*default_multicast_key
;
1016 struct dentry
*default_mgmt_key
;
1017 struct dentry
*default_beacon_key
;
1021 /* must be last, dynamically sized area in this! */
1022 struct ieee80211_vif vif
;
1026 struct ieee80211_sub_if_data
*vif_to_sdata(struct ieee80211_vif
*p
)
1028 return container_of(p
, struct ieee80211_sub_if_data
, vif
);
1031 static inline void sdata_lock(struct ieee80211_sub_if_data
*sdata
)
1032 __acquires(&sdata
->wdev
.mtx
)
1034 mutex_lock(&sdata
->wdev
.mtx
);
1035 __acquire(&sdata
->wdev
.mtx
);
1038 static inline void sdata_unlock(struct ieee80211_sub_if_data
*sdata
)
1039 __releases(&sdata
->wdev
.mtx
)
1041 mutex_unlock(&sdata
->wdev
.mtx
);
1042 __release(&sdata
->wdev
.mtx
);
1045 #define sdata_dereference(p, sdata) \
1046 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
1049 sdata_assert_lock(struct ieee80211_sub_if_data
*sdata
)
1051 lockdep_assert_held(&sdata
->wdev
.mtx
);
1055 ieee80211_chandef_get_shift(struct cfg80211_chan_def
*chandef
)
1057 switch (chandef
->width
) {
1058 case NL80211_CHAN_WIDTH_5
:
1060 case NL80211_CHAN_WIDTH_10
:
1068 ieee80211_vif_get_shift(struct ieee80211_vif
*vif
)
1070 struct ieee80211_chanctx_conf
*chanctx_conf
;
1074 chanctx_conf
= rcu_dereference(vif
->chanctx_conf
);
1076 shift
= ieee80211_chandef_get_shift(&chanctx_conf
->def
);
1083 IEEE80211_RX_MSG
= 1,
1084 IEEE80211_TX_STATUS_MSG
= 2,
1087 enum queue_stop_reason
{
1088 IEEE80211_QUEUE_STOP_REASON_DRIVER
,
1089 IEEE80211_QUEUE_STOP_REASON_PS
,
1090 IEEE80211_QUEUE_STOP_REASON_CSA
,
1091 IEEE80211_QUEUE_STOP_REASON_AGGREGATION
,
1092 IEEE80211_QUEUE_STOP_REASON_SUSPEND
,
1093 IEEE80211_QUEUE_STOP_REASON_SKB_ADD
,
1094 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL
,
1095 IEEE80211_QUEUE_STOP_REASON_FLUSH
,
1096 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN
,
1097 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID
,
1098 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE
,
1100 IEEE80211_QUEUE_STOP_REASONS
,
1103 #ifdef CONFIG_MAC80211_LEDS
1104 struct tpt_led_trigger
{
1106 const struct ieee80211_tpt_blink
*blink_table
;
1107 unsigned int blink_table_len
;
1108 struct timer_list timer
;
1109 struct ieee80211_local
*local
;
1110 unsigned long prev_traffic
;
1111 unsigned long tx_bytes
, rx_bytes
;
1112 unsigned int active
, want
;
1118 * mac80211 scan flags - currently active scan mode
1120 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1121 * well be on the operating channel
1122 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1123 * determine if we are on the operating channel or not
1124 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1125 * channel. This should not interrupt normal traffic.
1126 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1127 * that the scan completed.
1128 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1129 * a scan complete for an aborted scan.
1130 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1136 SCAN_ONCHANNEL_SCANNING
,
1143 * enum mac80211_scan_state - scan state machine states
1145 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1146 * determines if we should keep on scanning or switch back to the
1148 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1149 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1150 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1152 * @SCAN_RESUME: Resume the scan and scan the next channel
1153 * @SCAN_ABORT: Abort the scan and go back to operating channel
1155 enum mac80211_scan_state
{
1165 * struct airtime_sched_info - state used for airtime scheduling and AQL
1167 * @lock: spinlock that protects all the fields in this struct
1168 * @active_txqs: rbtree of currently backlogged queues, sorted by virtual time
1169 * @schedule_pos: the current position maintained while a driver walks the tree
1170 * with ieee80211_next_txq()
1171 * @active_list: list of struct airtime_info structs that were active within
1172 * the last AIRTIME_ACTIVE_DURATION (100 ms), used to compute
1174 * @last_weight_update: used for rate limiting walking active_list
1175 * @last_schedule_time: tracks the last time a transmission was scheduled; used
1176 * for catching up v_t if no stations are eligible for
1178 * @v_t: global virtual time; queues with v_t < this are eligible for
1180 * @weight_sum: total sum of all active stations used for dividing airtime
1181 * @weight_sum_reciprocal: reciprocal of weight_sum (to avoid divisions in fast
1182 * path - see comment above
1183 * IEEE80211_RECIPROCAL_DIVISOR_64)
1184 * @aql_txq_limit_low: AQL limit when total outstanding airtime
1185 * is < IEEE80211_AQL_THRESHOLD
1186 * @aql_txq_limit_high: AQL limit when total outstanding airtime
1187 * is > IEEE80211_AQL_THRESHOLD
1189 struct airtime_sched_info
{
1191 struct rb_root_cached active_txqs
;
1192 struct rb_node
*schedule_pos
;
1193 struct list_head active_list
;
1194 u64 last_weight_update
;
1195 u64 last_schedule_activity
;
1198 u64 weight_sum_reciprocal
;
1199 u32 aql_txq_limit_low
;
1200 u32 aql_txq_limit_high
;
1202 DECLARE_STATIC_KEY_FALSE(aql_disable
);
1204 struct ieee80211_local
{
1205 /* embed the driver visible part.
1206 * don't cast (use the static inlines below), but we keep
1207 * it first anyway so they become a no-op */
1208 struct ieee80211_hw hw
;
1211 struct codel_vars
*cvars
;
1212 struct codel_params cparams
;
1214 /* protects active_txqs and txqi->schedule_order */
1215 struct airtime_sched_info airtime
[IEEE80211_NUM_ACS
];
1218 atomic_t aql_total_pending_airtime
;
1220 const struct ieee80211_ops
*ops
;
1223 * private workqueue to mac80211. mac80211 makes this accessible
1224 * via ieee80211_queue_work()
1226 struct workqueue_struct
*workqueue
;
1228 unsigned long queue_stop_reasons
[IEEE80211_MAX_QUEUES
];
1229 int q_stop_reasons
[IEEE80211_MAX_QUEUES
][IEEE80211_QUEUE_STOP_REASONS
];
1230 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1231 spinlock_t queue_stop_reason_lock
;
1234 int monitors
, cooked_mntrs
;
1235 /* number of interfaces with corresponding FIF_ flags */
1236 int fif_fcsfail
, fif_plcpfail
, fif_control
, fif_other_bss
, fif_pspoll
,
1239 bool rx_mcast_action_reg
;
1240 unsigned int filter_flags
; /* FIF_* */
1242 bool wiphy_ciphers_allocated
;
1246 /* protects the aggregated multicast list and filter calls */
1247 spinlock_t filter_lock
;
1249 /* used for uploading changed mc list */
1250 struct work_struct reconfig_filter
;
1252 /* aggregated multicast list */
1253 struct netdev_hw_addr_list mc_list
;
1255 bool tim_in_locked_section
; /* see ieee80211_beacon_get() */
1258 * suspended is true if we finished all the suspend _and_ we have
1259 * not yet come up from resume. This is to be used by mac80211
1260 * to ensure driver sanity during suspend and mac80211's own
1261 * sanity. It can eventually be used for WoW as well.
1266 * Resuming is true while suspended, but when we're reprogramming the
1267 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1268 * again even though some other parts of the stack are still suspended
1269 * and we still drop received frames to avoid waking the stack.
1274 * quiescing is true during the suspend process _only_ to
1275 * ease timer cancelling etc.
1279 /* device is started */
1282 /* device is during a HW reconfig */
1285 /* wowlan is enabled -- don't reconfig on resume */
1288 struct work_struct radar_detected_work
;
1290 /* number of RX chains the hardware has */
1293 /* bitmap of which sbands were copied */
1296 int tx_headroom
; /* required headroom for hardware/radiotap */
1298 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1299 * added to skb_queue will be processed, but frames in
1300 * skb_queue_unreliable may be dropped if the total length of these
1301 * queues increases over the limit. */
1302 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1303 struct tasklet_struct tasklet
;
1304 struct sk_buff_head skb_queue
;
1305 struct sk_buff_head skb_queue_unreliable
;
1307 spinlock_t rx_path_lock
;
1311 * The mutex only protects the list, hash table and
1312 * counter, reads are done with RCU.
1314 struct mutex sta_mtx
;
1315 spinlock_t tim_lock
;
1316 unsigned long num_sta
;
1317 struct list_head sta_list
;
1318 struct rhltable sta_hash
;
1319 struct timer_list sta_cleanup
;
1322 struct sk_buff_head pending
[IEEE80211_MAX_QUEUES
];
1323 struct tasklet_struct tx_pending_tasklet
;
1324 struct tasklet_struct wake_txqs_tasklet
;
1326 atomic_t agg_queue_stop
[IEEE80211_MAX_QUEUES
];
1328 /* number of interfaces with allmulti RX */
1329 atomic_t iff_allmultis
;
1331 struct rate_control_ref
*rate_ctrl
;
1333 struct arc4_ctx wep_tx_ctx
;
1334 struct arc4_ctx wep_rx_ctx
;
1338 struct list_head interfaces
;
1339 struct list_head mon_list
; /* only that are IFF_UP && !cooked */
1340 struct mutex iflist_mtx
;
1343 * Key mutex, protects sdata's key_list and sta_info's
1344 * key pointers and ptk_idx (write access, they're RCU.)
1346 struct mutex key_mtx
;
1348 /* mutex for scan and work locking */
1351 /* Scanning and BSS list */
1352 unsigned long scanning
;
1353 struct cfg80211_ssid scan_ssid
;
1354 struct cfg80211_scan_request
*int_scan_req
;
1355 struct cfg80211_scan_request __rcu
*scan_req
;
1356 struct ieee80211_scan_request
*hw_scan_req
;
1357 struct cfg80211_chan_def scan_chandef
;
1358 enum nl80211_band hw_scan_band
;
1359 int scan_channel_idx
;
1361 int hw_scan_ies_bufsize
;
1362 struct cfg80211_scan_info scan_info
;
1364 struct work_struct sched_scan_stopped_work
;
1365 struct ieee80211_sub_if_data __rcu
*sched_scan_sdata
;
1366 struct cfg80211_sched_scan_request __rcu
*sched_scan_req
;
1367 u8 scan_addr
[ETH_ALEN
];
1369 unsigned long leave_oper_channel_time
;
1370 enum mac80211_scan_state next_scan_state
;
1371 struct delayed_work scan_work
;
1372 struct ieee80211_sub_if_data __rcu
*scan_sdata
;
1373 /* For backward compatibility only -- do not use */
1374 struct cfg80211_chan_def _oper_chandef
;
1376 /* Temporary remain-on-channel for off-channel operations */
1377 struct ieee80211_channel
*tmp_channel
;
1379 /* channel contexts */
1380 struct list_head chanctx_list
;
1381 struct mutex chanctx_mtx
;
1383 #ifdef CONFIG_MAC80211_LEDS
1384 struct led_trigger tx_led
, rx_led
, assoc_led
, radio_led
;
1385 struct led_trigger tpt_led
;
1386 atomic_t tx_led_active
, rx_led_active
, assoc_led_active
;
1387 atomic_t radio_led_active
, tpt_led_active
;
1388 struct tpt_led_trigger
*tpt_led_trigger
;
1391 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1393 /* dot11CountersTable */
1394 u32 dot11TransmittedFragmentCount
;
1395 u32 dot11MulticastTransmittedFrameCount
;
1396 u32 dot11FailedCount
;
1397 u32 dot11RetryCount
;
1398 u32 dot11MultipleRetryCount
;
1399 u32 dot11FrameDuplicateCount
;
1400 u32 dot11ReceivedFragmentCount
;
1401 u32 dot11MulticastReceivedFrameCount
;
1402 u32 dot11TransmittedFrameCount
;
1404 /* TX/RX handler statistics */
1405 unsigned int tx_handlers_drop
;
1406 unsigned int tx_handlers_queued
;
1407 unsigned int tx_handlers_drop_wep
;
1408 unsigned int tx_handlers_drop_not_assoc
;
1409 unsigned int tx_handlers_drop_unauth_port
;
1410 unsigned int rx_handlers_drop
;
1411 unsigned int rx_handlers_queued
;
1412 unsigned int rx_handlers_drop_nullfunc
;
1413 unsigned int rx_handlers_drop_defrag
;
1414 unsigned int tx_expand_skb_head
;
1415 unsigned int tx_expand_skb_head_cloned
;
1416 unsigned int rx_expand_skb_head_defrag
;
1417 unsigned int rx_handlers_fragments
;
1418 unsigned int tx_status_drop
;
1419 #define I802_DEBUG_INC(c) (c)++
1420 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1421 #define I802_DEBUG_INC(c) do { } while (0)
1422 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1425 int total_ps_buffered
; /* total number of all buffered unicast and
1426 * multicast packets for power saving stations
1431 * PS can only be enabled when we have exactly one managed
1432 * interface (and monitors) in PS, this then points there.
1434 struct ieee80211_sub_if_data
*ps_sdata
;
1435 struct work_struct dynamic_ps_enable_work
;
1436 struct work_struct dynamic_ps_disable_work
;
1437 struct timer_list dynamic_ps_timer
;
1438 struct notifier_block ifa_notifier
;
1439 struct notifier_block ifa6_notifier
;
1442 * The dynamic ps timeout configured from user space via WEXT -
1443 * this will override whatever chosen by mac80211 internally.
1445 int dynamic_ps_forced_timeout
;
1447 int user_power_level
; /* in dBm, for all interfaces */
1449 enum ieee80211_smps_mode smps_mode
;
1451 struct work_struct restart_work
;
1453 #ifdef CONFIG_MAC80211_DEBUGFS
1454 struct local_debugfsdentries
{
1455 struct dentry
*rcdir
;
1456 struct dentry
*keys
;
1458 bool force_tx_status
;
1462 * Remain-on-channel support
1464 struct delayed_work roc_work
;
1465 struct list_head roc_list
;
1466 struct work_struct hw_roc_start
, hw_roc_done
;
1467 unsigned long hw_roc_start_time
;
1468 u64 roc_cookie_counter
;
1470 struct idr ack_status_frames
;
1471 spinlock_t ack_status_lock
;
1473 struct ieee80211_sub_if_data __rcu
*p2p_sdata
;
1475 /* virtual monitor interface */
1476 struct ieee80211_sub_if_data __rcu
*monitor_sdata
;
1477 struct cfg80211_chan_def monitor_chandef
;
1479 /* extended capabilities provided by mac80211 */
1483 static inline struct ieee80211_sub_if_data
*
1484 IEEE80211_DEV_TO_SUB_IF(struct net_device
*dev
)
1486 return netdev_priv(dev
);
1489 static inline struct ieee80211_sub_if_data
*
1490 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev
*wdev
)
1492 return container_of(wdev
, struct ieee80211_sub_if_data
, wdev
);
1495 static inline struct ieee80211_supported_band
*
1496 ieee80211_get_sband(struct ieee80211_sub_if_data
*sdata
)
1498 struct ieee80211_local
*local
= sdata
->local
;
1499 struct ieee80211_chanctx_conf
*chanctx_conf
;
1500 enum nl80211_band band
;
1503 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
1505 if (!chanctx_conf
) {
1510 band
= chanctx_conf
->def
.chan
->band
;
1513 return local
->hw
.wiphy
->bands
[band
];
1516 /* this struct holds the value parsing from channel switch IE */
1517 struct ieee80211_csa_ie
{
1518 struct cfg80211_chan_def chandef
;
1524 u32 max_switch_time
;
1527 /* Parsed Information Elements */
1528 struct ieee802_11_elems
{
1532 /* pointers to IEs */
1533 const struct ieee80211_tdls_lnkie
*lnk_id
;
1534 const struct ieee80211_ch_switch_timing
*ch_sw_timing
;
1535 const u8
*ext_capab
;
1537 const u8
*supp_rates
;
1538 const u8
*ds_params
;
1539 const struct ieee80211_tim_ie
*tim
;
1540 const u8
*challenge
;
1544 const u8
*ext_supp_rates
;
1546 const u8
*wmm_param
;
1547 const struct ieee80211_ht_cap
*ht_cap_elem
;
1548 const struct ieee80211_ht_operation
*ht_operation
;
1549 const struct ieee80211_vht_cap
*vht_cap_elem
;
1550 const struct ieee80211_vht_operation
*vht_operation
;
1551 const struct ieee80211_meshconf_ie
*mesh_config
;
1553 const struct ieee80211_he_operation
*he_operation
;
1554 const struct ieee80211_he_spr
*he_spr
;
1555 const struct ieee80211_mu_edca_param_set
*mu_edca_param_set
;
1556 const struct ieee80211_he_6ghz_capa
*he_6ghz_capa
;
1557 const struct ieee80211_tx_pwr_env
*tx_pwr_env
[IEEE80211_TPE_MAX_IE_COUNT
];
1558 const u8
*uora_element
;
1561 const __le16
*awake_window
;
1565 const struct ieee80211_rann_ie
*rann
;
1566 const struct ieee80211_channel_sw_ie
*ch_switch_ie
;
1567 const struct ieee80211_ext_chansw_ie
*ext_chansw_ie
;
1568 const struct ieee80211_wide_bw_chansw_ie
*wide_bw_chansw_ie
;
1569 const u8
*max_channel_switch_time
;
1570 const u8
*country_elem
;
1571 const u8
*pwr_constr_elem
;
1572 const u8
*cisco_dtpc_elem
;
1573 const struct ieee80211_timeout_interval_ie
*timeout_int
;
1574 const u8
*opmode_notif
;
1575 const struct ieee80211_sec_chan_offs_ie
*sec_chan_offs
;
1576 struct ieee80211_mesh_chansw_params_ie
*mesh_chansw_params_ie
;
1577 const struct ieee80211_bss_max_idle_period_ie
*max_idle_period_ie
;
1578 const struct ieee80211_multiple_bssid_configuration
*mbssid_config_ie
;
1579 const struct ieee80211_bssid_index
*bssid_index
;
1580 u8 max_bssid_indicator
;
1583 const struct ieee80211_addba_ext_ie
*addba_ext_ie
;
1584 const struct ieee80211_s1g_cap
*s1g_capab
;
1585 const struct ieee80211_s1g_oper_ie
*s1g_oper
;
1586 const struct ieee80211_s1g_bcn_compat_ie
*s1g_bcn_compat
;
1587 const struct ieee80211_aid_response_ie
*aid_resp
;
1589 /* length of them, respectively */
1597 u8 ext_supp_rates_len
;
1606 u8 country_elem_len
;
1608 u8 tx_pwr_env_len
[IEEE80211_TPE_MAX_IE_COUNT
];
1611 /* whether a parse error occurred while retrieving these elements */
1615 static inline struct ieee80211_local
*hw_to_local(
1616 struct ieee80211_hw
*hw
)
1618 return container_of(hw
, struct ieee80211_local
, hw
);
1621 static inline struct txq_info
*to_txq_info(struct ieee80211_txq
*txq
)
1623 return container_of(txq
, struct txq_info
, txq
);
1626 static inline bool txq_has_queue(struct ieee80211_txq
*txq
)
1628 struct txq_info
*txqi
= to_txq_info(txq
);
1630 return !(skb_queue_empty(&txqi
->frags
) && !txqi
->tin
.backlog_packets
);
1633 static inline struct airtime_info
*to_airtime_info(struct ieee80211_txq
*txq
)
1635 struct ieee80211_sub_if_data
*sdata
;
1636 struct sta_info
*sta
;
1639 sta
= container_of(txq
->sta
, struct sta_info
, sta
);
1640 return &sta
->airtime
[txq
->ac
];
1643 sdata
= vif_to_sdata(txq
->vif
);
1644 return &sdata
->airtime
[txq
->ac
];
1647 /* To avoid divisions in the fast path, we keep pre-computed reciprocals for
1648 * airtime weight calculations. There are two different weights to keep track
1649 * of: The per-station weight and the sum of weights per phy.
1651 * For the per-station weights (kept in airtime_info below), we use 32-bit
1652 * reciprocals with a devisor of 2^19. This lets us keep the multiplications and
1653 * divisions for the station weights as 32-bit operations at the cost of a bit
1654 * of rounding error for high weights; but the choice of divisor keeps rounding
1655 * errors <10% for weights <2^15, assuming no more than 8ms of airtime is
1656 * reported at a time.
1658 * For the per-phy sum of weights the values can get higher, so we use 64-bit
1659 * operations for those with a 32-bit divisor, which should avoid any
1660 * significant rounding errors.
1662 #define IEEE80211_RECIPROCAL_DIVISOR_64 0x100000000ULL
1663 #define IEEE80211_RECIPROCAL_SHIFT_64 32
1664 #define IEEE80211_RECIPROCAL_DIVISOR_32 0x80000U
1665 #define IEEE80211_RECIPROCAL_SHIFT_32 19
1667 static inline void airtime_weight_set(struct airtime_info
*air_info
, u16 weight
)
1669 if (air_info
->weight
== weight
)
1672 air_info
->weight
= weight
;
1674 air_info
->weight_reciprocal
=
1675 IEEE80211_RECIPROCAL_DIVISOR_32
/ weight
;
1677 air_info
->weight_reciprocal
= 0;
1681 static inline void airtime_weight_sum_set(struct airtime_sched_info
*air_sched
,
1684 if (air_sched
->weight_sum
== weight_sum
)
1687 air_sched
->weight_sum
= weight_sum
;
1688 if (air_sched
->weight_sum
) {
1689 air_sched
->weight_sum_reciprocal
= IEEE80211_RECIPROCAL_DIVISOR_64
;
1690 do_div(air_sched
->weight_sum_reciprocal
, air_sched
->weight_sum
);
1692 air_sched
->weight_sum_reciprocal
= 0;
1696 /* A problem when trying to enforce airtime fairness is that we want to divide
1697 * the airtime between the currently *active* stations. However, basing this on
1698 * the instantaneous queue state of stations doesn't work, as queues tend to
1699 * oscillate very quickly between empty and occupied, leading to the scheduler
1700 * thinking only a single station is active when deciding whether to allow
1701 * transmission (and thus not throttling correctly).
1703 * To fix this we use a timer-based notion of activity: a station is considered
1704 * active if it has been scheduled within the last 100 ms; we keep a separate
1705 * list of all the stations considered active in this manner, and lazily update
1706 * the total weight of active stations from this list (filtering the stations in
1707 * the list by their 'last active' time).
1709 * We add one additional safeguard to guard against stations that manage to get
1710 * scheduled every 100 ms but don't transmit a lot of data, and thus don't use
1711 * up any airtime. Such stations would be able to get priority for an extended
1712 * period of time if they do start transmitting at full capacity again, and so
1713 * we add an explicit maximum for how far behind a station is allowed to fall in
1714 * the virtual airtime domain. This limit is set to a relatively high value of
1715 * 20 ms because the main mechanism for catching up idle stations is the active
1716 * state as described above; i.e., the hard limit should only be hit in
1717 * pathological cases.
1719 #define AIRTIME_ACTIVE_DURATION (100 * NSEC_PER_MSEC)
1720 #define AIRTIME_MAX_BEHIND 20000 /* 20 ms */
1722 static inline bool airtime_is_active(struct airtime_info
*air_info
, u64 now
)
1724 return air_info
->last_scheduled
>= now
- AIRTIME_ACTIVE_DURATION
;
1727 static inline void airtime_set_active(struct airtime_sched_info
*air_sched
,
1728 struct airtime_info
*air_info
, u64 now
)
1730 air_info
->last_scheduled
= now
;
1731 air_sched
->last_schedule_activity
= now
;
1732 list_move_tail(&air_info
->list
, &air_sched
->active_list
);
1735 static inline bool airtime_catchup_v_t(struct airtime_sched_info
*air_sched
,
1738 air_sched
->v_t
= v_t
;
1742 static inline void init_airtime_info(struct airtime_info
*air_info
,
1743 struct airtime_sched_info
*air_sched
)
1745 atomic_set(&air_info
->aql_tx_pending
, 0);
1746 air_info
->aql_limit_low
= air_sched
->aql_txq_limit_low
;
1747 air_info
->aql_limit_high
= air_sched
->aql_txq_limit_high
;
1748 airtime_weight_set(air_info
, IEEE80211_DEFAULT_AIRTIME_WEIGHT
);
1749 INIT_LIST_HEAD(&air_info
->list
);
1752 static inline int ieee80211_bssid_match(const u8
*raddr
, const u8
*addr
)
1754 return ether_addr_equal(raddr
, addr
) ||
1755 is_broadcast_ether_addr(raddr
);
1759 ieee80211_have_rx_timestamp(struct ieee80211_rx_status
*status
)
1761 WARN_ON_ONCE(status
->flag
& RX_FLAG_MACTIME_START
&&
1762 status
->flag
& RX_FLAG_MACTIME_END
);
1763 return !!(status
->flag
& (RX_FLAG_MACTIME_START
| RX_FLAG_MACTIME_END
|
1764 RX_FLAG_MACTIME_PLCP_START
));
1767 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data
*sdata
);
1768 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data
*sdata
);
1770 /* This function returns the number of multicast stations connected to this
1771 * interface. It returns -1 if that number is not tracked, that is for netdevs
1772 * not in AP or AP_VLAN mode or when using 4addr.
1775 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data
*sdata
)
1777 if (sdata
->vif
.type
== NL80211_IFTYPE_AP
)
1778 return atomic_read(&sdata
->u
.ap
.num_mcast_sta
);
1779 if (sdata
->vif
.type
== NL80211_IFTYPE_AP_VLAN
&& !sdata
->u
.vlan
.sta
)
1780 return atomic_read(&sdata
->u
.vlan
.num_mcast_sta
);
1784 u64
ieee80211_calculate_rx_timestamp(struct ieee80211_local
*local
,
1785 struct ieee80211_rx_status
*status
,
1786 unsigned int mpdu_len
,
1787 unsigned int mpdu_offset
);
1788 int ieee80211_hw_config(struct ieee80211_local
*local
, u32 changed
);
1789 void ieee80211_tx_set_protected(struct ieee80211_tx_data
*tx
);
1790 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data
*sdata
,
1792 void ieee80211_configure_filter(struct ieee80211_local
*local
);
1793 u32
ieee80211_reset_erp_info(struct ieee80211_sub_if_data
*sdata
);
1795 u64
ieee80211_mgmt_tx_cookie(struct ieee80211_local
*local
);
1796 int ieee80211_attach_ack_skb(struct ieee80211_local
*local
, struct sk_buff
*skb
,
1797 u64
*cookie
, gfp_t gfp
);
1799 void ieee80211_check_fast_rx(struct sta_info
*sta
);
1800 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data
*sdata
);
1801 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data
*sdata
);
1802 void ieee80211_clear_fast_rx(struct sta_info
*sta
);
1805 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
1806 int ieee80211_mgd_auth(struct ieee80211_sub_if_data
*sdata
,
1807 struct cfg80211_auth_request
*req
);
1808 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data
*sdata
,
1809 struct cfg80211_assoc_request
*req
);
1810 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data
*sdata
,
1811 struct cfg80211_deauth_request
*req
);
1812 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data
*sdata
,
1813 struct cfg80211_disassoc_request
*req
);
1814 void ieee80211_send_pspoll(struct ieee80211_local
*local
,
1815 struct ieee80211_sub_if_data
*sdata
);
1816 void ieee80211_recalc_ps(struct ieee80211_local
*local
);
1817 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data
*sdata
);
1818 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data
*sdata
);
1819 void ieee80211_sta_work(struct ieee80211_sub_if_data
*sdata
);
1820 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1821 struct sk_buff
*skb
);
1822 void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data
*sdata
,
1823 struct sk_buff
*skb
);
1824 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data
*sdata
);
1825 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data
*sdata
);
1826 void ieee80211_mgd_stop(struct ieee80211_sub_if_data
*sdata
);
1827 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data
*sdata
,
1828 __le16 fc
, bool acked
);
1829 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data
*sdata
);
1830 void ieee80211_sta_restart(struct ieee80211_sub_if_data
*sdata
);
1831 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data
*sdata
);
1832 void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data
*sdata
,
1833 u8
*bssid
, u8 reason
, bool tx
);
1836 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local
*local
);
1837 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
1838 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data
*sdata
,
1839 const u8
*bssid
, const u8
*addr
, u32 supp_rates
);
1840 int ieee80211_ibss_join(struct ieee80211_sub_if_data
*sdata
,
1841 struct cfg80211_ibss_params
*params
);
1842 int ieee80211_ibss_leave(struct ieee80211_sub_if_data
*sdata
);
1843 void ieee80211_ibss_work(struct ieee80211_sub_if_data
*sdata
);
1844 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1845 struct sk_buff
*skb
);
1846 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data
*sdata
,
1847 struct cfg80211_csa_settings
*csa_settings
);
1848 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data
*sdata
);
1849 void ieee80211_ibss_stop(struct ieee80211_sub_if_data
*sdata
);
1852 void ieee80211_ocb_work(struct ieee80211_sub_if_data
*sdata
);
1853 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data
*sdata
,
1854 const u8
*bssid
, const u8
*addr
, u32 supp_rates
);
1855 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
1856 int ieee80211_ocb_join(struct ieee80211_sub_if_data
*sdata
,
1857 struct ocb_setup
*setup
);
1858 int ieee80211_ocb_leave(struct ieee80211_sub_if_data
*sdata
);
1861 void ieee80211_mesh_work(struct ieee80211_sub_if_data
*sdata
);
1862 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1863 struct sk_buff
*skb
);
1864 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data
*sdata
,
1865 struct cfg80211_csa_settings
*csa_settings
);
1866 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data
*sdata
);
1868 /* scan/BSS handling */
1869 void ieee80211_scan_work(struct work_struct
*work
);
1870 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data
*sdata
,
1871 const u8
*ssid
, u8 ssid_len
,
1872 struct ieee80211_channel
**channels
,
1873 unsigned int n_channels
,
1874 enum nl80211_bss_scan_width scan_width
);
1875 int ieee80211_request_scan(struct ieee80211_sub_if_data
*sdata
,
1876 struct cfg80211_scan_request
*req
);
1877 void ieee80211_scan_cancel(struct ieee80211_local
*local
);
1878 void ieee80211_run_deferred_scan(struct ieee80211_local
*local
);
1879 void ieee80211_scan_rx(struct ieee80211_local
*local
, struct sk_buff
*skb
);
1881 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local
*local
);
1882 struct ieee80211_bss
*
1883 ieee80211_bss_info_update(struct ieee80211_local
*local
,
1884 struct ieee80211_rx_status
*rx_status
,
1885 struct ieee80211_mgmt
*mgmt
,
1887 struct ieee80211_channel
*channel
);
1888 void ieee80211_rx_bss_put(struct ieee80211_local
*local
,
1889 struct ieee80211_bss
*bss
);
1891 /* scheduled scan handling */
1893 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data
*sdata
,
1894 struct cfg80211_sched_scan_request
*req
);
1895 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data
*sdata
,
1896 struct cfg80211_sched_scan_request
*req
);
1897 int ieee80211_request_sched_scan_stop(struct ieee80211_local
*local
);
1898 void ieee80211_sched_scan_end(struct ieee80211_local
*local
);
1899 void ieee80211_sched_scan_stopped_work(struct work_struct
*work
);
1901 /* off-channel/mgmt-tx */
1902 void ieee80211_offchannel_stop_vifs(struct ieee80211_local
*local
);
1903 void ieee80211_offchannel_return(struct ieee80211_local
*local
);
1904 void ieee80211_roc_setup(struct ieee80211_local
*local
);
1905 void ieee80211_start_next_roc(struct ieee80211_local
*local
);
1906 void ieee80211_roc_purge(struct ieee80211_local
*local
,
1907 struct ieee80211_sub_if_data
*sdata
);
1908 int ieee80211_remain_on_channel(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
1909 struct ieee80211_channel
*chan
,
1910 unsigned int duration
, u64
*cookie
);
1911 int ieee80211_cancel_remain_on_channel(struct wiphy
*wiphy
,
1912 struct wireless_dev
*wdev
, u64 cookie
);
1913 int ieee80211_mgmt_tx(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
1914 struct cfg80211_mgmt_tx_params
*params
, u64
*cookie
);
1915 int ieee80211_mgmt_tx_cancel_wait(struct wiphy
*wiphy
,
1916 struct wireless_dev
*wdev
, u64 cookie
);
1918 /* channel switch handling */
1919 void ieee80211_csa_finalize_work(struct work_struct
*work
);
1920 int ieee80211_channel_switch(struct wiphy
*wiphy
, struct net_device
*dev
,
1921 struct cfg80211_csa_settings
*params
);
1923 /* color change handling */
1924 void ieee80211_color_change_finalize_work(struct work_struct
*work
);
1926 /* interface handling */
1927 #define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
1928 NETIF_F_HW_CSUM | NETIF_F_SG | \
1929 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE)
1930 #define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM)
1931 #define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \
1932 MAC80211_SUPPORTED_FEATURES_RX)
1934 int ieee80211_iface_init(void);
1935 void ieee80211_iface_exit(void);
1936 int ieee80211_if_add(struct ieee80211_local
*local
, const char *name
,
1937 unsigned char name_assign_type
,
1938 struct wireless_dev
**new_wdev
, enum nl80211_iftype type
,
1939 struct vif_params
*params
);
1940 int ieee80211_if_change_type(struct ieee80211_sub_if_data
*sdata
,
1941 enum nl80211_iftype type
);
1942 void ieee80211_if_remove(struct ieee80211_sub_if_data
*sdata
);
1943 void ieee80211_remove_interfaces(struct ieee80211_local
*local
);
1944 u32
ieee80211_idle_off(struct ieee80211_local
*local
);
1945 void ieee80211_recalc_idle(struct ieee80211_local
*local
);
1946 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data
*sdata
,
1948 int ieee80211_do_open(struct wireless_dev
*wdev
, bool coming_up
);
1949 void ieee80211_sdata_stop(struct ieee80211_sub_if_data
*sdata
);
1950 int ieee80211_add_virtual_monitor(struct ieee80211_local
*local
);
1951 void ieee80211_del_virtual_monitor(struct ieee80211_local
*local
);
1953 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data
*sdata
);
1954 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data
*sdata
,
1956 void ieee80211_recalc_offload(struct ieee80211_local
*local
);
1958 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data
*sdata
)
1960 return test_bit(SDATA_STATE_RUNNING
, &sdata
->state
);
1964 void ieee80211_clear_tx_pending(struct ieee80211_local
*local
);
1965 void ieee80211_tx_pending(struct tasklet_struct
*t
);
1966 netdev_tx_t
ieee80211_monitor_start_xmit(struct sk_buff
*skb
,
1967 struct net_device
*dev
);
1968 netdev_tx_t
ieee80211_subif_start_xmit(struct sk_buff
*skb
,
1969 struct net_device
*dev
);
1970 netdev_tx_t
ieee80211_subif_start_xmit_8023(struct sk_buff
*skb
,
1971 struct net_device
*dev
);
1972 void __ieee80211_subif_start_xmit(struct sk_buff
*skb
,
1973 struct net_device
*dev
,
1977 void ieee80211_purge_tx_queue(struct ieee80211_hw
*hw
,
1978 struct sk_buff_head
*skbs
);
1980 ieee80211_build_data_template(struct ieee80211_sub_if_data
*sdata
,
1981 struct sk_buff
*skb
, u32 info_flags
);
1982 void ieee80211_tx_monitor(struct ieee80211_local
*local
, struct sk_buff
*skb
,
1983 struct ieee80211_supported_band
*sband
,
1984 int retry_count
, int shift
, bool send_to_cooked
,
1985 struct ieee80211_tx_status
*status
);
1987 void ieee80211_check_fast_xmit(struct sta_info
*sta
);
1988 void ieee80211_check_fast_xmit_all(struct ieee80211_local
*local
);
1989 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data
*sdata
);
1990 void ieee80211_clear_fast_xmit(struct sta_info
*sta
);
1991 int ieee80211_tx_control_port(struct wiphy
*wiphy
, struct net_device
*dev
,
1992 const u8
*buf
, size_t len
,
1993 const u8
*dest
, __be16 proto
, bool unencrypted
,
1995 int ieee80211_probe_mesh_link(struct wiphy
*wiphy
, struct net_device
*dev
,
1996 const u8
*buf
, size_t len
);
1997 void ieee80211_resort_txq(struct ieee80211_hw
*hw
,
1998 struct ieee80211_txq
*txq
);
1999 void ieee80211_unschedule_txq(struct ieee80211_hw
*hw
,
2000 struct ieee80211_txq
*txq
,
2002 void ieee80211_update_airtime_weight(struct ieee80211_local
*local
,
2003 struct airtime_sched_info
*air_sched
,
2004 u64 now
, bool force
);
2007 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data
*sdata
,
2008 struct ieee80211_sta_ht_cap
*ht_cap
);
2009 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data
*sdata
,
2010 struct ieee80211_supported_band
*sband
,
2011 const struct ieee80211_ht_cap
*ht_cap_ie
,
2012 struct sta_info
*sta
);
2013 void ieee80211_send_delba(struct ieee80211_sub_if_data
*sdata
,
2014 const u8
*da
, u16 tid
,
2015 u16 initiator
, u16 reason_code
);
2016 int ieee80211_send_smps_action(struct ieee80211_sub_if_data
*sdata
,
2017 enum ieee80211_smps_mode smps
, const u8
*da
,
2019 void ieee80211_request_smps_ap_work(struct work_struct
*work
);
2020 void ieee80211_request_smps_mgd_work(struct work_struct
*work
);
2021 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old
,
2022 enum ieee80211_smps_mode smps_mode_new
);
2024 void ___ieee80211_stop_rx_ba_session(struct sta_info
*sta
, u16 tid
,
2025 u16 initiator
, u16 reason
, bool stop
);
2026 void __ieee80211_stop_rx_ba_session(struct sta_info
*sta
, u16 tid
,
2027 u16 initiator
, u16 reason
, bool stop
);
2028 void ___ieee80211_start_rx_ba_session(struct sta_info
*sta
,
2029 u8 dialog_token
, u16 timeout
,
2030 u16 start_seq_num
, u16 ba_policy
, u16 tid
,
2031 u16 buf_size
, bool tx
, bool auto_seq
,
2032 const struct ieee80211_addba_ext_ie
*addbaext
);
2033 void ieee80211_sta_tear_down_BA_sessions(struct sta_info
*sta
,
2034 enum ieee80211_agg_stop_reason reason
);
2035 void ieee80211_process_delba(struct ieee80211_sub_if_data
*sdata
,
2036 struct sta_info
*sta
,
2037 struct ieee80211_mgmt
*mgmt
, size_t len
);
2038 void ieee80211_process_addba_resp(struct ieee80211_local
*local
,
2039 struct sta_info
*sta
,
2040 struct ieee80211_mgmt
*mgmt
,
2042 void ieee80211_process_addba_request(struct ieee80211_local
*local
,
2043 struct sta_info
*sta
,
2044 struct ieee80211_mgmt
*mgmt
,
2047 int __ieee80211_stop_tx_ba_session(struct sta_info
*sta
, u16 tid
,
2048 enum ieee80211_agg_stop_reason reason
);
2049 int ___ieee80211_stop_tx_ba_session(struct sta_info
*sta
, u16 tid
,
2050 enum ieee80211_agg_stop_reason reason
);
2051 void ieee80211_start_tx_ba_cb(struct sta_info
*sta
, int tid
,
2052 struct tid_ampdu_tx
*tid_tx
);
2053 void ieee80211_stop_tx_ba_cb(struct sta_info
*sta
, int tid
,
2054 struct tid_ampdu_tx
*tid_tx
);
2055 void ieee80211_ba_session_work(struct work_struct
*work
);
2056 void ieee80211_tx_ba_session_handle_start(struct sta_info
*sta
, int tid
);
2057 void ieee80211_release_reorder_timeout(struct sta_info
*sta
, int tid
);
2059 u8
ieee80211_mcs_to_chains(const struct ieee80211_mcs_info
*mcs
);
2060 enum nl80211_smps_mode
2061 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps
);
2065 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data
*sdata
,
2066 struct ieee80211_supported_band
*sband
,
2067 const struct ieee80211_vht_cap
*vht_cap_ie
,
2068 struct sta_info
*sta
);
2069 enum ieee80211_sta_rx_bandwidth
ieee80211_sta_cap_rx_bw(struct sta_info
*sta
);
2070 enum ieee80211_sta_rx_bandwidth
ieee80211_sta_cur_vht_bw(struct sta_info
*sta
);
2071 void ieee80211_sta_set_rx_nss(struct sta_info
*sta
);
2072 enum ieee80211_sta_rx_bandwidth
2073 ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width
);
2074 enum nl80211_chan_width
ieee80211_sta_cap_chan_bw(struct sta_info
*sta
);
2075 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data
*sdata
,
2076 struct ieee80211_mgmt
*mgmt
);
2077 u32
__ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data
*sdata
,
2078 struct sta_info
*sta
, u8 opmode
,
2079 enum nl80211_band band
);
2080 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data
*sdata
,
2081 struct sta_info
*sta
, u8 opmode
,
2082 enum nl80211_band band
);
2083 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data
*sdata
,
2084 struct ieee80211_sta_vht_cap
*vht_cap
);
2085 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap
,
2086 u16 vht_mask
[NL80211_VHT_NSS_MAX
]);
2087 enum nl80211_chan_width
2088 ieee80211_sta_rx_bw_to_chan_width(struct sta_info
*sta
);
2092 ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data
*sdata
,
2093 struct ieee80211_supported_band
*sband
,
2094 const u8
*he_cap_ie
, u8 he_cap_len
,
2095 const struct ieee80211_he_6ghz_capa
*he_6ghz_capa
,
2096 struct sta_info
*sta
);
2098 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif
*vif
,
2099 const struct ieee80211_he_spr
*he_spr_ie_elem
);
2102 ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif
*vif
,
2103 const struct ieee80211_he_operation
*he_op_ie_elem
);
2106 void ieee80211_s1g_sta_rate_init(struct sta_info
*sta
);
2107 bool ieee80211_s1g_is_twt_setup(struct sk_buff
*skb
);
2108 void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data
*sdata
,
2109 struct sk_buff
*skb
);
2110 void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data
*sdata
,
2111 struct sk_buff
*skb
);
2113 /* Spectrum management */
2114 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data
*sdata
,
2115 struct ieee80211_mgmt
*mgmt
,
2118 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
2119 * @sdata: the sdata of the interface which has received the frame
2120 * @elems: parsed 802.11 elements received with the frame
2121 * @current_band: indicates the current band
2122 * @vht_cap_info: VHT capabilities of the transmitter
2123 * @sta_flags: contains information about own capabilities and restrictions
2124 * to decide which channel switch announcements can be accepted. Only the
2125 * following subset of &enum ieee80211_sta_flags are evaluated:
2126 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
2127 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
2128 * %IEEE80211_STA_DISABLE_160MHZ.
2129 * @bssid: the currently connected bssid (for reporting)
2130 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
2131 All of them will be filled with if success only.
2132 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
2134 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data
*sdata
,
2135 struct ieee802_11_elems
*elems
,
2136 enum nl80211_band current_band
,
2138 u32 sta_flags
, u8
*bssid
,
2139 struct ieee80211_csa_ie
*csa_ie
);
2141 /* Suspend/resume and hw reconfiguration */
2142 int ieee80211_reconfig(struct ieee80211_local
*local
);
2143 void ieee80211_stop_device(struct ieee80211_local
*local
);
2145 int __ieee80211_suspend(struct ieee80211_hw
*hw
,
2146 struct cfg80211_wowlan
*wowlan
);
2148 static inline int __ieee80211_resume(struct ieee80211_hw
*hw
)
2150 struct ieee80211_local
*local
= hw_to_local(hw
);
2152 WARN(test_bit(SCAN_HW_SCANNING
, &local
->scanning
) &&
2153 !test_bit(SCAN_COMPLETED
, &local
->scanning
),
2154 "%s: resume with hardware scan still in progress\n",
2155 wiphy_name(hw
->wiphy
));
2157 return ieee80211_reconfig(hw_to_local(hw
));
2160 /* utility functions/constants */
2161 extern const void *const mac80211_wiphy_privid
; /* for wiphy privid */
2162 int ieee80211_frame_duration(enum nl80211_band band
, size_t len
,
2163 int rate
, int erp
, int short_preamble
,
2165 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data
*sdata
,
2166 struct ieee80211_tx_queue_params
*qparam
,
2168 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data
*sdata
,
2169 bool bss_notify
, bool enable_qos
);
2170 void ieee80211_xmit(struct ieee80211_sub_if_data
*sdata
,
2171 struct sta_info
*sta
, struct sk_buff
*skb
);
2173 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data
*sdata
,
2174 struct sk_buff
*skb
, int tid
,
2175 enum nl80211_band band
);
2177 /* sta_out needs to be checked for ERR_PTR() before using */
2178 int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data
*sdata
,
2179 struct sk_buff
*skb
,
2180 struct sta_info
**sta_out
);
2183 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data
*sdata
,
2184 struct sk_buff
*skb
, int tid
,
2185 enum nl80211_band band
)
2188 __ieee80211_tx_skb_tid_band(sdata
, skb
, tid
, band
);
2192 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data
*sdata
,
2193 struct sk_buff
*skb
, int tid
)
2195 struct ieee80211_chanctx_conf
*chanctx_conf
;
2198 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
2199 if (WARN_ON(!chanctx_conf
)) {
2205 __ieee80211_tx_skb_tid_band(sdata
, skb
, tid
,
2206 chanctx_conf
->def
.chan
->band
);
2210 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data
*sdata
,
2211 struct sk_buff
*skb
)
2213 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
2214 ieee80211_tx_skb_tid(sdata
, skb
, 7);
2217 u32
ieee802_11_parse_elems_crc(const u8
*start
, size_t len
, bool action
,
2218 struct ieee802_11_elems
*elems
,
2219 u64 filter
, u32 crc
, u8
*transmitter_bssid
,
2221 static inline void ieee802_11_parse_elems(const u8
*start
, size_t len
,
2223 struct ieee802_11_elems
*elems
,
2224 u8
*transmitter_bssid
,
2227 ieee802_11_parse_elems_crc(start
, len
, action
, elems
, 0, 0,
2228 transmitter_bssid
, bss_bssid
);
2232 extern const int ieee802_1d_to_ac
[8];
2234 static inline int ieee80211_ac_from_tid(int tid
)
2236 return ieee802_1d_to_ac
[tid
& 7];
2239 void ieee80211_dynamic_ps_enable_work(struct work_struct
*work
);
2240 void ieee80211_dynamic_ps_disable_work(struct work_struct
*work
);
2241 void ieee80211_dynamic_ps_timer(struct timer_list
*t
);
2242 void ieee80211_send_nullfunc(struct ieee80211_local
*local
,
2243 struct ieee80211_sub_if_data
*sdata
,
2245 void ieee80211_send_4addr_nullfunc(struct ieee80211_local
*local
,
2246 struct ieee80211_sub_if_data
*sdata
);
2247 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data
*sdata
,
2248 struct ieee80211_hdr
*hdr
, bool ack
, u16 tx_time
);
2250 void ieee80211_wake_queues_by_reason(struct ieee80211_hw
*hw
,
2251 unsigned long queues
,
2252 enum queue_stop_reason reason
,
2254 void ieee80211_stop_vif_queues(struct ieee80211_local
*local
,
2255 struct ieee80211_sub_if_data
*sdata
,
2256 enum queue_stop_reason reason
);
2257 void ieee80211_wake_vif_queues(struct ieee80211_local
*local
,
2258 struct ieee80211_sub_if_data
*sdata
,
2259 enum queue_stop_reason reason
);
2260 void ieee80211_stop_queues_by_reason(struct ieee80211_hw
*hw
,
2261 unsigned long queues
,
2262 enum queue_stop_reason reason
,
2264 void ieee80211_wake_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
2265 enum queue_stop_reason reason
,
2267 void ieee80211_stop_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
2268 enum queue_stop_reason reason
,
2270 void ieee80211_propagate_queue_wake(struct ieee80211_local
*local
, int queue
);
2271 void ieee80211_add_pending_skb(struct ieee80211_local
*local
,
2272 struct sk_buff
*skb
);
2273 void ieee80211_add_pending_skbs(struct ieee80211_local
*local
,
2274 struct sk_buff_head
*skbs
);
2275 void ieee80211_flush_queues(struct ieee80211_local
*local
,
2276 struct ieee80211_sub_if_data
*sdata
, bool drop
);
2277 void __ieee80211_flush_queues(struct ieee80211_local
*local
,
2278 struct ieee80211_sub_if_data
*sdata
,
2279 unsigned int queues
, bool drop
);
2281 static inline bool ieee80211_can_run_worker(struct ieee80211_local
*local
)
2284 * It's unsafe to try to do any work during reconfigure flow.
2285 * When the flow ends the work will be requeued.
2287 if (local
->in_reconfig
)
2291 * If quiescing is set, we are racing with __ieee80211_suspend.
2292 * __ieee80211_suspend flushes the workers after setting quiescing,
2293 * and we check quiescing / suspended before enqueing new workers.
2294 * We should abort the worker to avoid the races below.
2296 if (local
->quiescing
)
2300 * We might already be suspended if the following scenario occurs:
2301 * __ieee80211_suspend Control path
2303 * if (local->quiescing)
2305 * local->quiescing = true;
2306 * flush_workqueue();
2308 * local->suspended = true;
2309 * local->quiescing = false;
2310 * worker starts running...
2312 if (local
->suspended
)
2318 int ieee80211_txq_setup_flows(struct ieee80211_local
*local
);
2319 void ieee80211_txq_set_params(struct ieee80211_local
*local
);
2320 void ieee80211_txq_teardown_flows(struct ieee80211_local
*local
);
2321 void ieee80211_txq_init(struct ieee80211_sub_if_data
*sdata
,
2322 struct sta_info
*sta
,
2323 struct txq_info
*txq
, int tid
);
2324 void ieee80211_txq_purge(struct ieee80211_local
*local
,
2325 struct txq_info
*txqi
);
2326 void ieee80211_txq_remove_vlan(struct ieee80211_local
*local
,
2327 struct ieee80211_sub_if_data
*sdata
);
2328 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats
*txqstats
,
2329 struct txq_info
*txqi
);
2330 void ieee80211_wake_txqs(struct tasklet_struct
*t
);
2331 void ieee80211_send_auth(struct ieee80211_sub_if_data
*sdata
,
2332 u16 transaction
, u16 auth_alg
, u16 status
,
2333 const u8
*extra
, size_t extra_len
, const u8
*bssid
,
2334 const u8
*da
, const u8
*key
, u8 key_len
, u8 key_idx
,
2336 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data
*sdata
,
2337 const u8
*da
, const u8
*bssid
,
2338 u16 stype
, u16 reason
,
2339 bool send_frame
, u8
*frame_buf
);
2342 IEEE80211_PROBE_FLAG_DIRECTED
= BIT(0),
2343 IEEE80211_PROBE_FLAG_MIN_CONTENT
= BIT(1),
2344 IEEE80211_PROBE_FLAG_RANDOM_SN
= BIT(2),
2347 int ieee80211_build_preq_ies(struct ieee80211_sub_if_data
*sdata
, u8
*buffer
,
2349 struct ieee80211_scan_ies
*ie_desc
,
2350 const u8
*ie
, size_t ie_len
,
2351 u8 bands_used
, u32
*rate_masks
,
2352 struct cfg80211_chan_def
*chandef
,
2354 struct sk_buff
*ieee80211_build_probe_req(struct ieee80211_sub_if_data
*sdata
,
2355 const u8
*src
, const u8
*dst
,
2357 struct ieee80211_channel
*chan
,
2358 const u8
*ssid
, size_t ssid_len
,
2359 const u8
*ie
, size_t ie_len
,
2361 u32
ieee80211_sta_get_rates(struct ieee80211_sub_if_data
*sdata
,
2362 struct ieee802_11_elems
*elems
,
2363 enum nl80211_band band
, u32
*basic_rates
);
2364 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data
*sdata
,
2365 enum ieee80211_smps_mode smps_mode
);
2366 void ieee80211_recalc_smps(struct ieee80211_sub_if_data
*sdata
);
2367 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data
*sdata
);
2369 size_t ieee80211_ie_split_vendor(const u8
*ies
, size_t ielen
, size_t offset
);
2370 u8
*ieee80211_ie_build_ht_cap(u8
*pos
, struct ieee80211_sta_ht_cap
*ht_cap
,
2372 u8
*ieee80211_ie_build_ht_oper(u8
*pos
, struct ieee80211_sta_ht_cap
*ht_cap
,
2373 const struct cfg80211_chan_def
*chandef
,
2374 u16 prot_mode
, bool rifs_mode
);
2375 void ieee80211_ie_build_wide_bw_cs(u8
*pos
,
2376 const struct cfg80211_chan_def
*chandef
);
2377 u8
*ieee80211_ie_build_vht_cap(u8
*pos
, struct ieee80211_sta_vht_cap
*vht_cap
,
2379 u8
*ieee80211_ie_build_vht_oper(u8
*pos
, struct ieee80211_sta_vht_cap
*vht_cap
,
2380 const struct cfg80211_chan_def
*chandef
);
2381 u8
ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data
*sdata
, u8 iftype
);
2382 u8
*ieee80211_ie_build_he_cap(u8
*pos
,
2383 const struct ieee80211_sta_he_cap
*he_cap
,
2385 void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data
*sdata
,
2386 struct sk_buff
*skb
);
2387 u8
*ieee80211_ie_build_he_oper(u8
*pos
, struct cfg80211_chan_def
*chandef
);
2388 int ieee80211_parse_bitrates(struct cfg80211_chan_def
*chandef
,
2389 const struct ieee80211_supported_band
*sband
,
2390 const u8
*srates
, int srates_len
, u32
*rates
);
2391 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data
*sdata
,
2392 struct sk_buff
*skb
, bool need_basic
,
2393 enum nl80211_band band
);
2394 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data
*sdata
,
2395 struct sk_buff
*skb
, bool need_basic
,
2396 enum nl80211_band band
);
2397 u8
*ieee80211_add_wmm_info_ie(u8
*buf
, u8 qosinfo
);
2398 void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data
*sdata
,
2399 struct ieee80211_sta_s1g_cap
*caps
,
2400 struct sk_buff
*skb
);
2401 void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data
*sdata
,
2402 struct sk_buff
*skb
);
2404 /* channel management */
2405 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation
*ht_oper
,
2406 struct cfg80211_chan_def
*chandef
);
2407 bool ieee80211_chandef_vht_oper(struct ieee80211_hw
*hw
, u32 vht_cap_info
,
2408 const struct ieee80211_vht_operation
*oper
,
2409 const struct ieee80211_ht_operation
*htop
,
2410 struct cfg80211_chan_def
*chandef
);
2411 bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data
*sdata
,
2412 const struct ieee80211_he_operation
*he_oper
,
2413 struct cfg80211_chan_def
*chandef
);
2414 bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie
*oper
,
2415 struct cfg80211_chan_def
*chandef
);
2416 u32
ieee80211_chandef_downgrade(struct cfg80211_chan_def
*c
);
2419 ieee80211_vif_use_channel(struct ieee80211_sub_if_data
*sdata
,
2420 const struct cfg80211_chan_def
*chandef
,
2421 enum ieee80211_chanctx_mode mode
);
2423 ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data
*sdata
,
2424 const struct cfg80211_chan_def
*chandef
,
2425 enum ieee80211_chanctx_mode mode
,
2426 bool radar_required
);
2428 ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data
*sdata
);
2429 int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data
*sdata
);
2432 ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data
*sdata
,
2433 const struct cfg80211_chan_def
*chandef
,
2435 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data
*sdata
);
2436 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data
*sdata
);
2437 void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data
*sdata
,
2439 int ieee80211_chanctx_refcount(struct ieee80211_local
*local
,
2440 struct ieee80211_chanctx
*ctx
);
2442 void ieee80211_recalc_smps_chanctx(struct ieee80211_local
*local
,
2443 struct ieee80211_chanctx
*chanctx
);
2444 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local
*local
,
2445 struct ieee80211_chanctx
*ctx
);
2446 bool ieee80211_is_radar_required(struct ieee80211_local
*local
);
2448 void ieee80211_dfs_cac_timer(unsigned long data
);
2449 void ieee80211_dfs_cac_timer_work(struct work_struct
*work
);
2450 void ieee80211_dfs_cac_cancel(struct ieee80211_local
*local
);
2451 void ieee80211_dfs_radar_detected_work(struct work_struct
*work
);
2452 int ieee80211_send_action_csa(struct ieee80211_sub_if_data
*sdata
,
2453 struct cfg80211_csa_settings
*csa_settings
);
2455 bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme
*cs
);
2456 bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme
*cs
, int n
);
2457 const struct ieee80211_cipher_scheme
*
2458 ieee80211_cs_get(struct ieee80211_local
*local
, u32 cipher
,
2459 enum nl80211_iftype iftype
);
2460 int ieee80211_cs_headroom(struct ieee80211_local
*local
,
2461 struct cfg80211_crypto_settings
*crypto
,
2462 enum nl80211_iftype iftype
);
2463 void ieee80211_recalc_dtim(struct ieee80211_local
*local
,
2464 struct ieee80211_sub_if_data
*sdata
);
2465 int ieee80211_check_combinations(struct ieee80211_sub_if_data
*sdata
,
2466 const struct cfg80211_chan_def
*chandef
,
2467 enum ieee80211_chanctx_mode chanmode
,
2469 int ieee80211_max_num_channels(struct ieee80211_local
*local
);
2470 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local
*local
,
2471 struct ieee80211_chanctx
*ctx
);
2474 int ieee80211_tdls_mgmt(struct wiphy
*wiphy
, struct net_device
*dev
,
2475 const u8
*peer
, u8 action_code
, u8 dialog_token
,
2476 u16 status_code
, u32 peer_capability
,
2477 bool initiator
, const u8
*extra_ies
,
2478 size_t extra_ies_len
);
2479 int ieee80211_tdls_oper(struct wiphy
*wiphy
, struct net_device
*dev
,
2480 const u8
*peer
, enum nl80211_tdls_operation oper
);
2481 void ieee80211_tdls_peer_del_work(struct work_struct
*wk
);
2482 int ieee80211_tdls_channel_switch(struct wiphy
*wiphy
, struct net_device
*dev
,
2483 const u8
*addr
, u8 oper_class
,
2484 struct cfg80211_chan_def
*chandef
);
2485 void ieee80211_tdls_cancel_channel_switch(struct wiphy
*wiphy
,
2486 struct net_device
*dev
,
2488 void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data
*sdata
);
2489 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data
*sdata
,
2490 const u8
*peer
, u16 reason
);
2492 ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data
*sdata
,
2493 struct sk_buff
*skb
);
2496 const char *ieee80211_get_reason_code_string(u16 reason_code
);
2497 u16
ieee80211_encode_usf(int val
);
2498 u8
*ieee80211_get_bssid(struct ieee80211_hdr
*hdr
, size_t len
,
2499 enum nl80211_iftype type
);
2501 extern const struct ethtool_ops ieee80211_ethtool_ops
;
2503 u32
ieee80211_calc_expected_tx_airtime(struct ieee80211_hw
*hw
,
2504 struct ieee80211_vif
*vif
,
2505 struct ieee80211_sta
*pubsta
,
2506 int len
, bool ampdu
);
2507 #ifdef CONFIG_MAC80211_NOINLINE
2508 #define debug_noinline noinline
2510 #define debug_noinline
2513 void ieee80211_init_frag_cache(struct ieee80211_fragment_cache
*cache
);
2514 void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache
*cache
);
2516 #endif /* IEEE80211_I_H */