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) 2018-2022 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>
38 extern const struct cfg80211_ops mac80211_config_ops;
40 struct ieee80211_local;
41 struct ieee80211_mesh_fast_tx;
43 /* Maximum number of broadcast/multicast frames to buffer when some of the
44 * associated stations are using power saving. */
45 #define AP_MAX_BC_BUFFER 128
47 /* Maximum number of frames buffered to all STAs, including multicast frames.
48 * Note: increasing this limit increases the potential memory requirement. Each
49 * frame can be up to about 2 kB long. */
50 #define TOTAL_MAX_TX_BUFFER 512
52 /* Required encryption head and tailroom */
53 #define IEEE80211_ENCRYPT_HEADROOM 8
54 #define IEEE80211_ENCRYPT_TAILROOM 18
56 /* power level hasn't been configured (or set to automatic) */
57 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN
60 * Some APs experience problems when working with U-APSD. Decreasing the
61 * probability of that happening by using legacy mode for all ACs but VO isn't
64 * Cisco 4410N originally forced us to enable VO by default only because it
65 * treated non-VO ACs as legacy.
67 * However some APs (notably Netgear R7000) silently reclassify packets to
68 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval
69 * clients would never see some frames (e.g. ARP responses) or would fetch them
70 * accidentally after a long time.
72 * It makes little sense to enable u-APSD queues by default because it needs
73 * userspace applications to be aware of it to actually take advantage of the
74 * possible additional powersavings. Implicitly depending on driver autotrigger
75 * frame support doesn't make much sense.
77 #define IEEE80211_DEFAULT_UAPSD_QUEUES 0
79 #define IEEE80211_DEFAULT_MAX_SP_LEN \
80 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
82 extern const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS];
84 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
86 #define IEEE80211_MAX_NAN_INSTANCE_ID 255
90 * Keep a station's queues on the active list for deficit accounting purposes
91 * if it was active or queued during the last 100ms
93 #define AIRTIME_ACTIVE_DURATION (HZ / 10)
95 struct ieee80211_bss {
96 u32 device_ts_beacon, device_ts_presp;
101 #define IEEE80211_MAX_SUPP_RATES 32
102 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
103 size_t supp_rates_len;
104 struct ieee80211_rate *beacon_rate;
109 * During association, we save an ERP value from a probe response so
110 * that we can feed ERP info to the driver when handling the
111 * association completes. these fields probably won't be up-to-date
112 * otherwise, you probably don't want to use them.
117 /* Keep track of the corruption of the last beacon/probe response. */
120 /* Keep track of what bits of information we have valid info for. */
125 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
126 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
127 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
129 * These are bss flags that are attached to a bss in the
130 * @corrupt_data field of &struct ieee80211_bss.
132 enum ieee80211_bss_corrupt_data_flags {
133 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
134 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
138 * enum ieee80211_valid_data_flags - BSS valid data flags
139 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
140 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
141 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
143 * These are bss flags that are attached to a bss in the
144 * @valid_data field of &struct ieee80211_bss. They show which parts
145 * of the data structure were received as a result of an un-corrupted
146 * beacon/probe response.
148 enum ieee80211_bss_valid_data_flags {
149 IEEE80211_BSS_VALID_WMM = BIT(1),
150 IEEE80211_BSS_VALID_RATES = BIT(2),
151 IEEE80211_BSS_VALID_ERP = BIT(3)
154 typedef unsigned __bitwise ieee80211_tx_result;
155 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
156 #define TX_DROP ((__force ieee80211_tx_result) 1u)
157 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
159 #define IEEE80211_TX_UNICAST BIT(1)
160 #define IEEE80211_TX_PS_BUFFERED BIT(2)
162 struct ieee80211_tx_data {
164 struct sk_buff_head skbs;
165 struct ieee80211_local *local;
166 struct ieee80211_sub_if_data *sdata;
167 struct sta_info *sta;
168 struct ieee80211_key *key;
169 struct ieee80211_tx_rate rate;
175 * enum ieee80211_packet_rx_flags - packet RX flags
176 * @IEEE80211_RX_AMSDU: a-MSDU packet
177 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
178 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
180 * These are per-frame flags that are attached to a frame in the
181 * @rx_flags field of &struct ieee80211_rx_status.
183 enum ieee80211_packet_rx_flags {
184 IEEE80211_RX_AMSDU = BIT(3),
185 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
186 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
190 * enum ieee80211_rx_flags - RX data flags
192 * @IEEE80211_RX_CMNTR: received on cooked monitor already
193 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
194 * to cfg80211_report_obss_beacon().
196 * These flags are used across handling multiple interfaces
197 * for a single frame.
199 enum ieee80211_rx_flags {
200 IEEE80211_RX_CMNTR = BIT(0),
201 IEEE80211_RX_BEACON_REPORTED = BIT(1),
204 struct ieee80211_rx_data {
205 struct list_head *list;
207 struct ieee80211_local *local;
208 struct ieee80211_sub_if_data *sdata;
209 struct ieee80211_link_data *link;
210 struct sta_info *sta;
211 struct link_sta_info *link_sta;
212 struct ieee80211_key *key;
217 * Index into sequence numbers array, 0..16
218 * since the last (16) is used for non-QoS,
219 * will be 16 on non-QoS frames.
224 * Index into the security IV/PN arrays, 0..16
225 * since the last (16) is used for CCMP-encrypted
226 * management frames, will be set to 16 on mgmt
227 * frames and 0 on non-QoS frames.
239 u8 pn[IEEE80211_CCMP_PN_LEN];
244 struct ieee80211_csa_settings {
245 const u16 *counter_offsets_beacon;
246 const u16 *counter_offsets_presp;
248 int n_counter_offsets_beacon;
249 int n_counter_offsets_presp;
254 struct ieee80211_color_change_settings {
255 u16 counter_offset_beacon;
256 u16 counter_offset_presp;
262 int head_len, tail_len;
263 struct ieee80211_meshconf_ie *meshconf;
264 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
265 u8 cntdwn_current_counter;
266 struct cfg80211_mbssid_elems *mbssid_ies;
267 struct cfg80211_rnr_elems *rnr_ies;
268 struct rcu_head rcu_head;
272 struct rcu_head rcu_head;
274 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
278 struct fils_discovery_data {
279 struct rcu_head rcu_head;
284 struct unsol_bcast_probe_resp_data {
285 struct rcu_head rcu_head;
291 /* yes, this looks ugly, but guarantees that we can later use
293 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
294 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
295 __aligned(__alignof__(unsigned long));
296 struct sk_buff_head bc_buf;
297 atomic_t num_sta_ps; /* number of stations in PS mode */
302 struct ieee80211_if_ap {
303 struct list_head vlans; /* write-protected with RTNL and local->mtx */
306 atomic_t num_mcast_sta; /* number of stations receiving multicast */
308 bool multicast_to_unicast;
312 struct ieee80211_if_vlan {
313 struct list_head list; /* write-protected with RTNL and local->mtx */
315 /* used for all tx if the VLAN is configured to 4-addr mode */
316 struct sta_info __rcu *sta;
317 atomic_t num_mcast_sta; /* number of stations receiving multicast */
321 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
322 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
323 __u32 fwded_frames; /* Mesh total forwarded frames */
324 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
325 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
328 #define PREQ_Q_F_START 0x1
329 #define PREQ_Q_F_REFRESH 0x2
330 struct mesh_preq_queue {
331 struct list_head list;
336 struct ieee80211_roc_work {
337 struct list_head list;
339 struct ieee80211_sub_if_data *sdata;
341 struct ieee80211_channel *chan;
343 bool started, abort, hw_begun, notified;
346 unsigned long start_time;
348 u32 duration, req_duration;
349 struct sk_buff *frame;
350 u64 cookie, mgmt_tx_cookie;
351 enum ieee80211_roc_type type;
354 /* flags used in struct ieee80211_if_managed.flags */
355 enum ieee80211_sta_flags {
356 IEEE80211_STA_CONNECTION_POLL = BIT(1),
357 IEEE80211_STA_CONTROL_PORT = BIT(2),
358 IEEE80211_STA_MFP_ENABLED = BIT(6),
359 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
360 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
361 IEEE80211_STA_ENABLE_RRM = BIT(15),
364 typedef u32 __bitwise ieee80211_conn_flags_t;
366 enum ieee80211_conn_flags {
367 IEEE80211_CONN_DISABLE_HT = (__force ieee80211_conn_flags_t)BIT(0),
368 IEEE80211_CONN_DISABLE_40MHZ = (__force ieee80211_conn_flags_t)BIT(1),
369 IEEE80211_CONN_DISABLE_VHT = (__force ieee80211_conn_flags_t)BIT(2),
370 IEEE80211_CONN_DISABLE_80P80MHZ = (__force ieee80211_conn_flags_t)BIT(3),
371 IEEE80211_CONN_DISABLE_160MHZ = (__force ieee80211_conn_flags_t)BIT(4),
372 IEEE80211_CONN_DISABLE_HE = (__force ieee80211_conn_flags_t)BIT(5),
373 IEEE80211_CONN_DISABLE_EHT = (__force ieee80211_conn_flags_t)BIT(6),
374 IEEE80211_CONN_DISABLE_320MHZ = (__force ieee80211_conn_flags_t)BIT(7),
377 struct ieee80211_mgd_auth_data {
378 struct cfg80211_bss *bss;
379 unsigned long timeout;
381 u16 algorithm, expected_transaction;
383 u8 key[WLAN_KEY_LEN_WEP104];
387 bool timeout_started;
390 u8 ap_addr[ETH_ALEN] __aligned(2);
392 u16 sae_trans, sae_status;
397 struct ieee80211_mgd_assoc_data {
399 struct cfg80211_bss *bss;
401 u8 addr[ETH_ALEN] __aligned(2);
405 struct ieee80211_vht_cap ap_vht_cap;
408 u8 *elems; /* pointing to inside ie[] below */
410 ieee80211_conn_flags_t conn_flags;
415 } link[IEEE80211_MLD_MAX_NUM_LINKS];
417 u8 ap_addr[ETH_ALEN] __aligned(2);
419 /* this is for a workaround, so we use it only for non-MLO */
420 const u8 *supp_rates;
423 unsigned long timeout;
426 u8 prev_ap_addr[ETH_ALEN];
427 u8 ssid[IEEE80211_MAX_SSID_LEN];
432 bool timeout_started;
435 unsigned int assoc_link_id;
437 u8 fils_nonces[2 * FILS_NONCE_LEN];
438 u8 fils_kek[FILS_MAX_KEK_LEN];
442 u8 *ie_pos; /* used to fill ie[] with link[].elems */
446 struct ieee80211_sta_tx_tspec {
447 /* timestamp of the first packet in the time slice */
448 unsigned long time_slice_start;
450 u32 admitted_time; /* in usecs, unlike over the air */
452 s8 up; /* signed to be able to invalidate with -1 during teardown */
454 /* consumed TX time in microseconds in the time slice */
455 u32 consumed_tx_time;
457 TX_TSPEC_ACTION_NONE = 0,
458 TX_TSPEC_ACTION_DOWNGRADE,
459 TX_TSPEC_ACTION_STOP_DOWNGRADE,
464 DECLARE_EWMA(beacon_signal, 4, 4)
466 struct ieee80211_if_managed {
467 struct timer_list timer;
468 struct timer_list conn_mon_timer;
469 struct timer_list bcn_mon_timer;
470 struct work_struct monitor_work;
471 struct wiphy_work beacon_connection_loss_work;
472 struct wiphy_work csa_connection_drop_work;
474 unsigned long beacon_timeout;
475 unsigned long probe_timeout;
476 int probe_send_count;
477 bool nullfunc_failed;
478 u8 connection_loss:1,
483 struct ieee80211_mgd_auth_data *auth_data;
484 struct ieee80211_mgd_assoc_data *assoc_data;
486 bool powersave; /* powersave requested for this iface */
487 bool broken_ap; /* AP is broken -- turn off powersave */
492 bool status_received;
496 IEEE80211_MFP_DISABLED,
497 IEEE80211_MFP_OPTIONAL,
498 IEEE80211_MFP_REQUIRED
499 } mfp; /* management frame protection */
502 * Bitmask of enabled u-apsd queues,
503 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
506 unsigned int uapsd_queues;
509 * Maximum number of buffered frames AP can deliver during a
510 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
511 * Needs a new association to take effect.
513 unsigned int uapsd_max_sp_len;
518 * State variables for keeping track of RSSI of the AP currently
519 * connected to and informing driver when RSSI has gone
520 * below/above a certain threshold.
522 int rssi_min_thold, rssi_max_thold;
524 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
525 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
526 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
527 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
528 struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */
529 struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */
532 u8 tdls_peer[ETH_ALEN] __aligned(2);
533 struct delayed_work tdls_peer_del_work;
534 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
535 struct sk_buff *teardown_skb; /* A copy to send through the AP */
536 spinlock_t teardown_lock; /* To lock changing teardown_skb */
537 bool tdls_wider_bw_prohibited;
539 /* WMM-AC TSPEC support */
540 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
541 /* Use a separate work struct so that we can do something here
542 * while the sdata->work is flushing the queues, for example.
543 * otherwise, in scenarios where we hardly get any traffic out
544 * on the BE queue, but there's a lot of VO traffic, we might
545 * get stuck in a downgraded situation and flush takes forever.
547 struct delayed_work tx_tspec_wk;
549 /* Information elements from the last transmitted (Re)Association
553 size_t assoc_req_ies_len;
555 struct wiphy_delayed_work ml_reconf_work;
559 struct ieee80211_if_ibss {
560 struct timer_list timer;
561 struct wiphy_work csa_connection_drop_work;
563 unsigned long last_scan_completed;
572 bool userspace_handles_dfs;
574 u8 bssid[ETH_ALEN] __aligned(2);
575 u8 ssid[IEEE80211_MAX_SSID_LEN];
578 struct cfg80211_chan_def chandef;
580 unsigned long ibss_join_req;
581 /* probe response/beacon for IBSS */
582 struct beacon_data __rcu *presp;
584 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
585 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
587 spinlock_t incomplete_lock;
588 struct list_head incomplete_stations;
591 IEEE80211_IBSS_MLME_SEARCH,
592 IEEE80211_IBSS_MLME_JOINED,
597 * struct ieee80211_if_ocb - OCB mode state
599 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
600 * @wrkq_flags: OCB deferred task action
601 * @incomplete_lock: delayed STA insertion lock
602 * @incomplete_stations: list of STAs waiting for delayed insertion
603 * @joined: indication if the interface is connected to an OCB network
605 struct ieee80211_if_ocb {
606 struct timer_list housekeeping_timer;
607 unsigned long wrkq_flags;
609 spinlock_t incomplete_lock;
610 struct list_head incomplete_stations;
616 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
618 * these declarations define the interface, which enables
619 * vendor-specific mesh synchronization
622 struct ieee802_11_elems;
623 struct ieee80211_mesh_sync_ops {
624 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, u16 stype,
625 struct ieee80211_mgmt *mgmt, unsigned int len,
626 const struct ieee80211_meshconf_ie *mesh_cfg,
627 struct ieee80211_rx_status *rx_status);
629 /* should be called with beacon_data under RCU read lock */
630 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata,
631 struct beacon_data *beacon);
632 /* add other framework functions here */
635 struct mesh_csa_settings {
636 struct rcu_head rcu_head;
637 struct cfg80211_csa_settings settings;
643 * @known_gates: list of known mesh gates and their mpaths by the station. The
644 * gate's mpath may or may not be resolved and active.
645 * @gates_lock: protects updates to known_gates
646 * @rhead: the rhashtable containing struct mesh_paths, keyed by dest addr
647 * @walk_head: linked list containing all mesh_path objects
648 * @walk_lock: lock protecting walk_head
649 * @entries: number of entries in the table
652 struct hlist_head known_gates;
653 spinlock_t gates_lock;
654 struct rhashtable rhead;
655 struct hlist_head walk_head;
656 spinlock_t walk_lock;
657 atomic_t entries; /* Up to MAX_MESH_NEIGHBOURS */
661 * struct mesh_tx_cache - mesh fast xmit header cache
663 * @rht: hash table containing struct ieee80211_mesh_fast_tx, using skb DA as key
664 * @walk_head: linked list containing all ieee80211_mesh_fast_tx objects
665 * @walk_lock: lock protecting walk_head and rht
667 struct mesh_tx_cache {
668 struct rhashtable rht;
669 struct hlist_head walk_head;
670 spinlock_t walk_lock;
673 struct ieee80211_if_mesh {
674 struct timer_list housekeeping_timer;
675 struct timer_list mesh_path_timer;
676 struct timer_list mesh_path_root_timer;
678 unsigned long wrkq_flags;
679 unsigned long mbss_changed[64 / BITS_PER_LONG];
681 bool userspace_handles_dfs;
683 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
685 /* Active Path Selection Protocol Identifier */
687 /* Active Path Selection Metric Identifier */
689 /* Congestion Control Mode Identifier */
691 /* Synchronization Protocol Identifier */
693 /* Authentication Protocol Identifier */
695 /* Local mesh Sequence Number */
697 /* Last used PREQ ID */
700 /* Timestamp of last SN update */
701 unsigned long last_sn_update;
702 /* Time when it's ok to send next PERR */
703 unsigned long next_perr;
704 /* Timestamp of last PREQ sent */
705 unsigned long last_preq;
706 struct mesh_rmc *rmc;
707 spinlock_t mesh_preq_queue_lock;
708 struct mesh_preq_queue preq_queue;
710 struct mesh_stats mshstats;
711 struct mesh_config mshcfg;
712 atomic_t estab_plinks;
713 atomic_t mesh_seqnum;
714 bool accepting_plinks;
716 struct beacon_data __rcu *beacon;
720 IEEE80211_MESH_SEC_NONE = 0x0,
721 IEEE80211_MESH_SEC_AUTHED = 0x1,
722 IEEE80211_MESH_SEC_SECURED = 0x2,
725 /* Extensible Synchronization Framework */
726 const struct ieee80211_mesh_sync_ops *sync_ops;
727 s64 sync_offset_clockdrift_max;
728 spinlock_t sync_offset_lock;
729 /* mesh power save */
730 enum nl80211_mesh_power_mode nonpeer_pm;
731 int ps_peers_light_sleep;
732 int ps_peers_deep_sleep;
734 /* Channel Switching Support */
735 struct mesh_csa_settings __rcu *csa;
737 IEEE80211_MESH_CSA_ROLE_NONE,
738 IEEE80211_MESH_CSA_ROLE_INIT,
739 IEEE80211_MESH_CSA_ROLE_REPEATER,
744 /* offset from skb->data while building IE */
747 struct mesh_table mesh_paths;
748 struct mesh_table mpp_paths; /* Store paths for MPP&MAP */
749 int mesh_paths_generation;
750 int mpp_paths_generation;
751 struct mesh_tx_cache tx_cache;
754 #ifdef CONFIG_MAC80211_MESH
755 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
756 do { (msh)->mshstats.name++; } while (0)
758 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
763 * enum ieee80211_sub_if_data_flags - virtual interface flags
765 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
766 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
767 * associated stations and deliver multicast frames both
768 * back to wireless media and to the local net stack.
769 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
770 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
771 * @IEEE80211_SDATA_DISCONNECT_HW_RESTART: Disconnect after hardware restart
774 enum ieee80211_sub_if_data_flags {
775 IEEE80211_SDATA_ALLMULTI = BIT(0),
776 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
777 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
778 IEEE80211_SDATA_IN_DRIVER = BIT(5),
779 IEEE80211_SDATA_DISCONNECT_HW_RESTART = BIT(6),
783 * enum ieee80211_sdata_state_bits - virtual interface state bits
784 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
785 * mirrors netif_running() but is separate for interface type
786 * change handling while the interface is up
787 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
788 * mode, so queues are stopped
789 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
790 * to offchannel, reset when offchannel returns
792 enum ieee80211_sdata_state_bits {
794 SDATA_STATE_OFFCHANNEL,
795 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
799 * enum ieee80211_chanctx_mode - channel context configuration mode
801 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
802 * multiple interfaces
803 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
804 * only by a single interface. This can be used for example for
805 * non-fixed channel IBSS.
807 enum ieee80211_chanctx_mode {
808 IEEE80211_CHANCTX_SHARED,
809 IEEE80211_CHANCTX_EXCLUSIVE
813 * enum ieee80211_chanctx_replace_state - channel context replacement state
815 * This is used for channel context in-place reservations that require channel
816 * context switch/swap.
818 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
819 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
820 * by a (not yet registered) channel context pointed by %replace_ctx.
821 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
822 * replaces an existing channel context pointed to by %replace_ctx.
824 enum ieee80211_chanctx_replace_state {
825 IEEE80211_CHANCTX_REPLACE_NONE,
826 IEEE80211_CHANCTX_WILL_BE_REPLACED,
827 IEEE80211_CHANCTX_REPLACES_OTHER,
830 struct ieee80211_chanctx {
831 struct list_head list;
832 struct rcu_head rcu_head;
834 struct list_head assigned_links;
835 struct list_head reserved_links;
837 enum ieee80211_chanctx_replace_state replace_state;
838 struct ieee80211_chanctx *replace_ctx;
840 enum ieee80211_chanctx_mode mode;
843 struct ieee80211_chanctx_conf conf;
846 struct mac80211_qos_map {
847 struct cfg80211_qos_map qos_map;
848 struct rcu_head rcu_head;
851 enum txq_info_flags {
854 IEEE80211_TXQ_NO_AMSDU,
859 * struct txq_info - per tid queue
861 * @tin: contains packets split into multiple flows
862 * @def_flow: used as a fallback flow when a packet destined to @tin hashes to
863 * a fq_flow which is already owned by a different tin
864 * @def_cvars: codel vars for @def_flow
865 * @frags: used to keep fragments created after dequeue
866 * @schedule_order: used with ieee80211_local->active_txqs
867 * @schedule_round: counter to prevent infinite loops on TXQ scheduling
871 struct codel_vars def_cvars;
872 struct codel_stats cstats;
875 struct list_head schedule_order;
877 struct sk_buff_head frags;
882 struct ieee80211_txq txq;
885 struct ieee80211_if_mntr {
887 u8 mu_follow_addr[ETH_ALEN] __aligned(2);
889 struct list_head list;
893 * struct ieee80211_if_nan - NAN state
895 * @conf: current NAN configuration
896 * @func_ids: a bitmap of available instance_id's
898 struct ieee80211_if_nan {
899 struct cfg80211_nan_conf conf;
901 /* protects function_inst_ids */
902 spinlock_t func_lock;
903 struct idr function_inst_ids;
906 struct ieee80211_link_data_managed {
907 u8 bssid[ETH_ALEN] __aligned(2);
910 enum ieee80211_smps_mode req_smps, /* requested smps mode */
911 driver_smps_mode; /* smps mode request */
913 ieee80211_conn_flags_t conn_flags;
917 bool tdls_chan_switch_prohibited;
920 bool tracking_signal_avg;
921 bool disable_wmm_tracking;
922 bool operating_11g_mode;
924 bool csa_waiting_bcn;
925 bool csa_ignored_same_chan;
926 struct wiphy_delayed_work chswitch_work;
928 struct wiphy_work request_smps_work;
929 bool beacon_crc_valid;
931 struct ewma_beacon_signal ave_beacon_signal;
932 int last_ave_beacon_signal;
935 * Number of Beacon frames used in ave_beacon_signal. This can be used
936 * to avoid generating less reliable cqm events that would be based
937 * only on couple of received frames.
939 unsigned int count_beacon_signal;
941 /* Number of times beacon loss was invoked. */
942 unsigned int beacon_loss_count;
945 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
946 * that triggered a cqm event. 0 indicates that no event has been
947 * generated for the current association.
949 int last_cqm_event_signal;
951 int wmm_last_param_set;
952 int mu_edca_last_param_set;
956 struct cfg80211_bss *bss;
959 struct ieee80211_link_data_ap {
960 struct beacon_data __rcu *beacon;
961 struct probe_resp __rcu *probe_resp;
962 struct fils_discovery_data __rcu *fils_discovery;
963 struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp;
965 /* to be used after channel switch. */
966 struct cfg80211_beacon_data *next_beacon;
969 struct ieee80211_link_data {
970 struct ieee80211_sub_if_data *sdata;
971 unsigned int link_id;
973 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
974 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
976 /* multicast keys only */
977 struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS +
978 NUM_DEFAULT_MGMT_KEYS +
979 NUM_DEFAULT_BEACON_KEYS];
980 struct ieee80211_key __rcu *default_multicast_key;
981 struct ieee80211_key __rcu *default_mgmt_key;
982 struct ieee80211_key __rcu *default_beacon_key;
984 struct work_struct csa_finalize_work;
985 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
987 bool operating_11g_mode;
989 struct cfg80211_chan_def csa_chandef;
991 struct work_struct color_change_finalize_work;
992 struct delayed_work color_collision_detect_work;
995 /* context reservation -- protected with chanctx_mtx */
996 struct ieee80211_chanctx *reserved_chanctx;
997 struct cfg80211_chan_def reserved_chandef;
998 bool reserved_radar_required;
1001 u8 needed_rx_chains;
1002 enum ieee80211_smps_mode smps_mode;
1004 int user_power_level; /* in dBm */
1005 int ap_power_level; /* in dBm */
1007 bool radar_required;
1008 struct delayed_work dfs_cac_timer_work;
1011 struct ieee80211_link_data_managed mgd;
1012 struct ieee80211_link_data_ap ap;
1015 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
1017 struct ieee80211_bss_conf *conf;
1019 #ifdef CONFIG_MAC80211_DEBUGFS
1020 struct dentry *debugfs_dir;
1024 struct ieee80211_sub_if_data {
1025 struct list_head list;
1027 struct wireless_dev wdev;
1030 struct list_head key_list;
1032 /* count for keys needing tailroom space allocation */
1033 int crypto_tx_tailroom_needed_cnt;
1034 int crypto_tx_tailroom_pending_dec;
1035 struct delayed_work dec_tailroom_needed_wk;
1037 struct net_device *dev;
1038 struct ieee80211_local *local;
1042 unsigned long state;
1044 char name[IFNAMSIZ];
1046 struct ieee80211_fragment_cache frags;
1048 /* TID bitmap for NoAck policy */
1051 /* bit field of ACM bits (BIT(802.1D tag)) */
1054 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS];
1055 struct ieee80211_key __rcu *default_unicast_key;
1057 u16 sequence_number;
1059 __be16 control_port_protocol;
1060 bool control_port_no_encrypt;
1061 bool control_port_no_preauth;
1062 bool control_port_over_nl80211;
1064 atomic_t num_tx_queued;
1065 struct mac80211_qos_map __rcu *qos_map;
1067 /* used to reconfigure hardware SM PS */
1068 struct work_struct recalc_smps;
1070 struct wiphy_work work;
1071 struct sk_buff_head skb_queue;
1072 struct sk_buff_head status_queue;
1075 * AP this belongs to: self in AP mode and
1076 * corresponding AP in VLAN mode, NULL for
1077 * all others (might be needed later in IBSS)
1079 struct ieee80211_if_ap *bss;
1081 /* bitmap of allowed (non-MCS) rate indexes for rate control */
1082 u32 rc_rateidx_mask[NUM_NL80211_BANDS];
1084 bool rc_has_mcs_mask[NUM_NL80211_BANDS];
1085 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
1087 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
1088 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
1090 /* Beacon frame (non-MCS) rate (as a bitmap) */
1091 u32 beacon_rateidx_mask[NUM_NL80211_BANDS];
1092 bool beacon_rate_set;
1095 struct ieee80211_if_ap ap;
1096 struct ieee80211_if_vlan vlan;
1097 struct ieee80211_if_managed mgd;
1098 struct ieee80211_if_ibss ibss;
1099 struct ieee80211_if_mesh mesh;
1100 struct ieee80211_if_ocb ocb;
1101 struct ieee80211_if_mntr mntr;
1102 struct ieee80211_if_nan nan;
1105 struct ieee80211_link_data deflink;
1106 struct ieee80211_link_data __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS];
1108 /* for ieee80211_set_active_links_async() */
1109 struct work_struct activate_links_work;
1110 u16 desired_active_links;
1112 #ifdef CONFIG_MAC80211_DEBUGFS
1114 struct dentry *subdir_stations;
1115 struct dentry *default_unicast_key;
1116 struct dentry *default_multicast_key;
1117 struct dentry *default_mgmt_key;
1118 struct dentry *default_beacon_key;
1122 /* must be last, dynamically sized area in this! */
1123 struct ieee80211_vif vif;
1127 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
1129 return container_of(p, struct ieee80211_sub_if_data, vif);
1132 static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
1133 __acquires(&sdata->wdev.mtx)
1135 mutex_lock(&sdata->wdev.mtx);
1136 __acquire(&sdata->wdev.mtx);
1139 static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
1140 __releases(&sdata->wdev.mtx)
1142 mutex_unlock(&sdata->wdev.mtx);
1143 __release(&sdata->wdev.mtx);
1146 #define sdata_dereference(p, sdata) \
1147 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
1150 sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
1152 lockdep_assert_held(&sdata->wdev.mtx);
1156 ieee80211_chanwidth_get_shift(enum nl80211_chan_width width)
1159 case NL80211_CHAN_WIDTH_5:
1161 case NL80211_CHAN_WIDTH_10:
1169 ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
1171 return ieee80211_chanwidth_get_shift(chandef->width);
1175 ieee80211_vif_get_shift(struct ieee80211_vif *vif)
1177 struct ieee80211_chanctx_conf *chanctx_conf;
1181 chanctx_conf = rcu_dereference(vif->bss_conf.chanctx_conf);
1183 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
1190 ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems *elems,
1191 struct cfg80211_rnr_elems *rnr_elems,
1196 if (!elems || !elems->cnt || i > elems->cnt)
1199 if (i < elems->cnt) {
1200 len = elems->elem[i].len;
1202 len += rnr_elems->elem[i].len;
1203 for (i = elems->cnt; i < rnr_elems->cnt; i++)
1204 len += rnr_elems->elem[i].len;
1209 /* i == elems->cnt, calculate total length of all MBSSID elements */
1210 for (i = 0; i < elems->cnt; i++)
1211 len += elems->elem[i].len;
1214 for (i = 0; i < rnr_elems->cnt; i++)
1215 len += rnr_elems->elem[i].len;
1222 IEEE80211_RX_MSG = 1,
1223 IEEE80211_TX_STATUS_MSG = 2,
1226 enum queue_stop_reason {
1227 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1228 IEEE80211_QUEUE_STOP_REASON_PS,
1229 IEEE80211_QUEUE_STOP_REASON_CSA,
1230 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1231 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1232 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1233 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1234 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1235 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1236 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1237 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE,
1239 IEEE80211_QUEUE_STOP_REASONS,
1242 #ifdef CONFIG_MAC80211_LEDS
1243 struct tpt_led_trigger {
1245 const struct ieee80211_tpt_blink *blink_table;
1246 unsigned int blink_table_len;
1247 struct timer_list timer;
1248 struct ieee80211_local *local;
1249 unsigned long prev_traffic;
1250 unsigned long tx_bytes, rx_bytes;
1251 unsigned int active, want;
1257 * mac80211 scan flags - currently active scan mode
1259 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1260 * well be on the operating channel
1261 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1262 * determine if we are on the operating channel or not
1263 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1264 * channel. This should not interrupt normal traffic.
1265 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1266 * that the scan completed.
1267 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1268 * a scan complete for an aborted scan.
1269 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1271 * @SCAN_BEACON_WAIT: Set whenever we're passive scanning because of radar/no-IR
1272 * and could send a probe request after receiving a beacon.
1273 * @SCAN_BEACON_DONE: Beacon received, we can now send a probe request
1278 SCAN_ONCHANNEL_SCANNING,
1287 * enum mac80211_scan_state - scan state machine states
1289 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1290 * determines if we should keep on scanning or switch back to the
1292 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1293 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1294 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1296 * @SCAN_RESUME: Resume the scan and scan the next channel
1297 * @SCAN_ABORT: Abort the scan and go back to operating channel
1299 enum mac80211_scan_state {
1308 DECLARE_STATIC_KEY_FALSE(aql_disable);
1310 struct ieee80211_local {
1311 /* embed the driver visible part.
1312 * don't cast (use the static inlines below), but we keep
1313 * it first anyway so they become a no-op */
1314 struct ieee80211_hw hw;
1317 struct codel_vars *cvars;
1318 struct codel_params cparams;
1320 /* protects active_txqs and txqi->schedule_order */
1321 spinlock_t active_txq_lock[IEEE80211_NUM_ACS];
1322 struct list_head active_txqs[IEEE80211_NUM_ACS];
1323 u16 schedule_round[IEEE80211_NUM_ACS];
1325 /* serializes ieee80211_handle_wake_tx_queue */
1326 spinlock_t handle_wake_tx_queue_lock;
1329 u32 aql_txq_limit_low[IEEE80211_NUM_ACS];
1330 u32 aql_txq_limit_high[IEEE80211_NUM_ACS];
1332 atomic_t aql_total_pending_airtime;
1333 atomic_t aql_ac_pending_airtime[IEEE80211_NUM_ACS];
1335 const struct ieee80211_ops *ops;
1338 * private workqueue to mac80211. mac80211 makes this accessible
1339 * via ieee80211_queue_work()
1341 struct workqueue_struct *workqueue;
1343 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1344 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1345 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1346 spinlock_t queue_stop_reason_lock;
1349 int monitors, cooked_mntrs;
1350 /* number of interfaces with corresponding FIF_ flags */
1351 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1354 bool rx_mcast_action_reg;
1355 unsigned int filter_flags; /* FIF_* */
1357 bool wiphy_ciphers_allocated;
1361 /* protects the aggregated multicast list and filter calls */
1362 spinlock_t filter_lock;
1364 /* used for uploading changed mc list */
1365 struct work_struct reconfig_filter;
1367 /* aggregated multicast list */
1368 struct netdev_hw_addr_list mc_list;
1370 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1373 * suspended is true if we finished all the suspend _and_ we have
1374 * not yet come up from resume. This is to be used by mac80211
1375 * to ensure driver sanity during suspend and mac80211's own
1376 * sanity. It can eventually be used for WoW as well.
1380 /* suspending is true during the whole suspend process */
1384 * Resuming is true while suspended, but when we're reprogramming the
1385 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1386 * again even though some other parts of the stack are still suspended
1387 * and we still drop received frames to avoid waking the stack.
1392 * quiescing is true during the suspend process _only_ to
1393 * ease timer cancelling etc.
1397 /* device is started */
1400 /* device is during a HW reconfig */
1403 /* reconfiguration failed ... suppress some warnings etc. */
1404 bool reconfig_failure;
1406 /* wowlan is enabled -- don't reconfig on resume */
1409 struct work_struct radar_detected_work;
1411 /* number of RX chains the hardware has */
1414 /* bitmap of which sbands were copied */
1417 int tx_headroom; /* required headroom for hardware/radiotap */
1419 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1420 * added to skb_queue will be processed, but frames in
1421 * skb_queue_unreliable may be dropped if the total length of these
1422 * queues increases over the limit. */
1423 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1424 struct tasklet_struct tasklet;
1425 struct sk_buff_head skb_queue;
1426 struct sk_buff_head skb_queue_unreliable;
1428 spinlock_t rx_path_lock;
1432 * The mutex only protects the list, hash table and
1433 * counter, reads are done with RCU.
1435 struct mutex sta_mtx;
1436 spinlock_t tim_lock;
1437 unsigned long num_sta;
1438 struct list_head sta_list;
1439 struct rhltable sta_hash;
1440 struct rhltable link_sta_hash;
1441 struct timer_list sta_cleanup;
1444 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1445 struct tasklet_struct tx_pending_tasklet;
1446 struct tasklet_struct wake_txqs_tasklet;
1448 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1450 /* number of interfaces with allmulti RX */
1451 atomic_t iff_allmultis;
1453 struct rate_control_ref *rate_ctrl;
1455 struct arc4_ctx wep_tx_ctx;
1456 struct arc4_ctx wep_rx_ctx;
1460 struct list_head interfaces;
1461 struct list_head mon_list; /* only that are IFF_UP && !cooked */
1462 struct mutex iflist_mtx;
1465 * Key mutex, protects sdata's key_list and sta_info's
1466 * key pointers and ptk_idx (write access, they're RCU.)
1468 struct mutex key_mtx;
1470 /* mutex for scan and work locking */
1473 /* Scanning and BSS list */
1474 unsigned long scanning;
1475 struct cfg80211_ssid scan_ssid;
1476 struct cfg80211_scan_request *int_scan_req;
1477 struct cfg80211_scan_request __rcu *scan_req;
1478 struct ieee80211_scan_request *hw_scan_req;
1479 struct cfg80211_chan_def scan_chandef;
1480 enum nl80211_band hw_scan_band;
1481 int scan_channel_idx;
1483 int hw_scan_ies_bufsize;
1484 struct cfg80211_scan_info scan_info;
1486 struct work_struct sched_scan_stopped_work;
1487 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1488 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1489 u8 scan_addr[ETH_ALEN];
1491 unsigned long leave_oper_channel_time;
1492 enum mac80211_scan_state next_scan_state;
1493 struct delayed_work scan_work;
1494 struct ieee80211_sub_if_data __rcu *scan_sdata;
1495 /* For backward compatibility only -- do not use */
1496 struct cfg80211_chan_def _oper_chandef;
1498 /* Temporary remain-on-channel for off-channel operations */
1499 struct ieee80211_channel *tmp_channel;
1501 /* channel contexts */
1502 struct list_head chanctx_list;
1503 struct mutex chanctx_mtx;
1505 #ifdef CONFIG_MAC80211_LEDS
1506 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1507 struct led_trigger tpt_led;
1508 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1509 atomic_t radio_led_active, tpt_led_active;
1510 struct tpt_led_trigger *tpt_led_trigger;
1513 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1515 /* dot11CountersTable */
1516 u32 dot11TransmittedFragmentCount;
1517 u32 dot11MulticastTransmittedFrameCount;
1518 u32 dot11FailedCount;
1519 u32 dot11RetryCount;
1520 u32 dot11MultipleRetryCount;
1521 u32 dot11FrameDuplicateCount;
1522 u32 dot11ReceivedFragmentCount;
1523 u32 dot11MulticastReceivedFrameCount;
1524 u32 dot11TransmittedFrameCount;
1526 /* TX/RX handler statistics */
1527 unsigned int tx_handlers_drop;
1528 unsigned int tx_handlers_queued;
1529 unsigned int tx_handlers_drop_wep;
1530 unsigned int tx_handlers_drop_not_assoc;
1531 unsigned int tx_handlers_drop_unauth_port;
1532 unsigned int rx_handlers_drop;
1533 unsigned int rx_handlers_queued;
1534 unsigned int rx_handlers_drop_nullfunc;
1535 unsigned int rx_handlers_drop_defrag;
1536 unsigned int tx_expand_skb_head;
1537 unsigned int tx_expand_skb_head_cloned;
1538 unsigned int rx_expand_skb_head_defrag;
1539 unsigned int rx_handlers_fragments;
1540 unsigned int tx_status_drop;
1541 #define I802_DEBUG_INC(c) (c)++
1542 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1543 #define I802_DEBUG_INC(c) do { } while (0)
1544 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1547 int total_ps_buffered; /* total number of all buffered unicast and
1548 * multicast packets for power saving stations
1553 * PS can only be enabled when we have exactly one managed
1554 * interface (and monitors) in PS, this then points there.
1556 struct ieee80211_sub_if_data *ps_sdata;
1557 struct work_struct dynamic_ps_enable_work;
1558 struct work_struct dynamic_ps_disable_work;
1559 struct timer_list dynamic_ps_timer;
1560 struct notifier_block ifa_notifier;
1561 struct notifier_block ifa6_notifier;
1564 * The dynamic ps timeout configured from user space via WEXT -
1565 * this will override whatever chosen by mac80211 internally.
1567 int dynamic_ps_forced_timeout;
1569 int user_power_level; /* in dBm, for all interfaces */
1571 enum ieee80211_smps_mode smps_mode;
1573 struct work_struct restart_work;
1575 #ifdef CONFIG_MAC80211_DEBUGFS
1576 struct local_debugfsdentries {
1577 struct dentry *rcdir;
1578 struct dentry *keys;
1580 bool force_tx_status;
1584 * Remain-on-channel support
1586 struct delayed_work roc_work;
1587 struct list_head roc_list;
1588 struct work_struct hw_roc_start, hw_roc_done;
1589 unsigned long hw_roc_start_time;
1590 u64 roc_cookie_counter;
1592 struct idr ack_status_frames;
1593 spinlock_t ack_status_lock;
1595 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1597 /* virtual monitor interface */
1598 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1599 struct cfg80211_chan_def monitor_chandef;
1601 /* extended capabilities provided by mac80211 */
1605 static inline struct ieee80211_sub_if_data *
1606 IEEE80211_DEV_TO_SUB_IF(const struct net_device *dev)
1608 return netdev_priv(dev);
1611 static inline struct ieee80211_sub_if_data *
1612 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1614 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1617 static inline struct ieee80211_supported_band *
1618 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata)
1620 struct ieee80211_local *local = sdata->local;
1621 struct ieee80211_chanctx_conf *chanctx_conf;
1622 enum nl80211_band band;
1624 WARN_ON(ieee80211_vif_is_mld(&sdata->vif));
1627 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
1629 if (!chanctx_conf) {
1634 band = chanctx_conf->def.chan->band;
1637 return local->hw.wiphy->bands[band];
1640 static inline struct ieee80211_supported_band *
1641 ieee80211_get_link_sband(struct ieee80211_link_data *link)
1643 struct ieee80211_local *local = link->sdata->local;
1644 struct ieee80211_chanctx_conf *chanctx_conf;
1645 enum nl80211_band band;
1648 chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
1649 if (!chanctx_conf) {
1654 band = chanctx_conf->def.chan->band;
1657 return local->hw.wiphy->bands[band];
1660 /* this struct holds the value parsing from channel switch IE */
1661 struct ieee80211_csa_ie {
1662 struct cfg80211_chan_def chandef;
1668 u32 max_switch_time;
1671 /* Parsed Information Elements */
1672 struct ieee802_11_elems {
1677 /* pointers to IEs */
1678 const struct ieee80211_tdls_lnkie *lnk_id;
1679 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1680 const u8 *ext_capab;
1682 const u8 *supp_rates;
1683 const u8 *ds_params;
1684 const struct ieee80211_tim_ie *tim;
1688 const u8 *ext_supp_rates;
1690 const u8 *wmm_param;
1691 const struct ieee80211_ht_cap *ht_cap_elem;
1692 const struct ieee80211_ht_operation *ht_operation;
1693 const struct ieee80211_vht_cap *vht_cap_elem;
1694 const struct ieee80211_vht_operation *vht_operation;
1695 const struct ieee80211_meshconf_ie *mesh_config;
1697 const struct ieee80211_he_operation *he_operation;
1698 const struct ieee80211_he_spr *he_spr;
1699 const struct ieee80211_mu_edca_param_set *mu_edca_param_set;
1700 const struct ieee80211_he_6ghz_capa *he_6ghz_capa;
1701 const struct ieee80211_tx_pwr_env *tx_pwr_env[IEEE80211_TPE_MAX_IE_COUNT];
1702 const u8 *uora_element;
1705 const __le16 *awake_window;
1709 const struct ieee80211_rann_ie *rann;
1710 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1711 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1712 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1713 const u8 *max_channel_switch_time;
1714 const u8 *country_elem;
1715 const u8 *pwr_constr_elem;
1716 const u8 *cisco_dtpc_elem;
1717 const struct ieee80211_timeout_interval_ie *timeout_int;
1718 const u8 *opmode_notif;
1719 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1720 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1721 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie;
1722 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie;
1723 const struct ieee80211_bssid_index *bssid_index;
1724 u8 max_bssid_indicator;
1727 const struct ieee80211_addba_ext_ie *addba_ext_ie;
1728 const struct ieee80211_s1g_cap *s1g_capab;
1729 const struct ieee80211_s1g_oper_ie *s1g_oper;
1730 const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat;
1731 const struct ieee80211_aid_response_ie *aid_resp;
1732 const struct ieee80211_eht_cap_elem *eht_cap;
1733 const struct ieee80211_eht_operation *eht_operation;
1734 const struct ieee80211_multi_link_elem *ml_basic;
1735 const struct ieee80211_multi_link_elem *ml_reconf;
1737 /* length of them, respectively */
1744 u8 ext_supp_rates_len;
1753 u8 country_elem_len;
1755 u8 tx_pwr_env_len[IEEE80211_TPE_MAX_IE_COUNT];
1759 /* mult-link element can be de-fragmented and thus u8 is not sufficient */
1760 size_t ml_basic_len;
1761 size_t ml_reconf_len;
1763 /* The basic Multi-Link element in the original IEs */
1764 const struct element *ml_basic_elem;
1766 /* The reconfiguration Multi-Link element in the original IEs */
1767 const struct element *ml_reconf_elem;
1770 * store the per station profile pointer and length in case that the
1771 * parsing also handled Multi-Link element parsing for a specific link
1774 struct ieee80211_mle_per_sta_profile *prof;
1775 size_t sta_prof_len;
1777 /* whether a parse error occurred while retrieving these elements */
1781 * scratch buffer that can be used for various element parsing related
1782 * tasks, e.g., element de-fragmentation etc.
1789 static inline struct ieee80211_local *hw_to_local(
1790 struct ieee80211_hw *hw)
1792 return container_of(hw, struct ieee80211_local, hw);
1795 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1797 return container_of(txq, struct txq_info, txq);
1800 static inline bool txq_has_queue(struct ieee80211_txq *txq)
1802 struct txq_info *txqi = to_txq_info(txq);
1804 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets);
1808 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1810 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1811 status->flag & RX_FLAG_MACTIME_END);
1812 return !!(status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END |
1813 RX_FLAG_MACTIME_PLCP_START));
1816 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
1817 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
1819 /* This function returns the number of multicast stations connected to this
1820 * interface. It returns -1 if that number is not tracked, that is for netdevs
1821 * not in AP or AP_VLAN mode or when using 4addr.
1824 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
1826 if (sdata->vif.type == NL80211_IFTYPE_AP)
1827 return atomic_read(&sdata->u.ap.num_mcast_sta);
1828 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
1829 return atomic_read(&sdata->u.vlan.num_mcast_sta);
1833 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1834 struct ieee80211_rx_status *status,
1835 unsigned int mpdu_len,
1836 unsigned int mpdu_offset);
1837 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1838 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1839 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1841 void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata,
1843 void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata,
1844 struct ieee80211_link_data *link,
1846 void ieee80211_configure_filter(struct ieee80211_local *local);
1847 u64 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1849 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
1850 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1851 u64 *cookie, gfp_t gfp);
1853 void ieee80211_check_fast_rx(struct sta_info *sta);
1854 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1855 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1856 void ieee80211_clear_fast_rx(struct sta_info *sta);
1858 bool ieee80211_is_our_addr(struct ieee80211_sub_if_data *sdata,
1859 const u8 *addr, int *out_link_id);
1862 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1863 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1864 struct cfg80211_auth_request *req);
1865 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1866 struct cfg80211_assoc_request *req);
1867 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1868 struct cfg80211_deauth_request *req);
1869 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1870 struct cfg80211_disassoc_request *req);
1871 void ieee80211_send_pspoll(struct ieee80211_local *local,
1872 struct ieee80211_sub_if_data *sdata);
1873 void ieee80211_recalc_ps(struct ieee80211_local *local);
1874 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1875 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1876 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1877 struct sk_buff *skb);
1878 void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata,
1879 struct sk_buff *skb);
1880 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1881 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1882 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1883 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1884 __le16 fc, bool acked);
1885 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1886 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1887 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1888 void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
1889 u8 reason, bool tx);
1890 void ieee80211_mgd_setup_link(struct ieee80211_link_data *link);
1891 void ieee80211_mgd_stop_link(struct ieee80211_link_data *link);
1892 void ieee80211_mgd_set_link_qos_params(struct ieee80211_link_data *link);
1895 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1896 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1897 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1898 const u8 *bssid, const u8 *addr, u32 supp_rates);
1899 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1900 struct cfg80211_ibss_params *params);
1901 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1902 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1903 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1904 struct sk_buff *skb);
1905 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1906 struct cfg80211_csa_settings *csa_settings,
1908 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata,
1910 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1913 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1914 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1915 const u8 *bssid, const u8 *addr, u32 supp_rates);
1916 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1917 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1918 struct ocb_setup *setup);
1919 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1922 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1923 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1924 struct sk_buff *skb);
1925 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1926 struct cfg80211_csa_settings *csa_settings,
1928 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata,
1931 /* scan/BSS handling */
1932 void ieee80211_scan_work(struct work_struct *work);
1933 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1934 const u8 *ssid, u8 ssid_len,
1935 struct ieee80211_channel **channels,
1936 unsigned int n_channels,
1937 enum nl80211_bss_scan_width scan_width);
1938 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1939 struct cfg80211_scan_request *req);
1940 void ieee80211_scan_cancel(struct ieee80211_local *local);
1941 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1942 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1944 void ieee80211_inform_bss(struct wiphy *wiphy, struct cfg80211_bss *bss,
1945 const struct cfg80211_bss_ies *ies, void *data);
1947 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1948 struct ieee80211_bss *
1949 ieee80211_bss_info_update(struct ieee80211_local *local,
1950 struct ieee80211_rx_status *rx_status,
1951 struct ieee80211_mgmt *mgmt,
1953 struct ieee80211_channel *channel);
1954 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1955 struct ieee80211_bss *bss);
1957 /* scheduled scan handling */
1959 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1960 struct cfg80211_sched_scan_request *req);
1961 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1962 struct cfg80211_sched_scan_request *req);
1963 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
1964 void ieee80211_sched_scan_end(struct ieee80211_local *local);
1965 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1967 /* off-channel/mgmt-tx */
1968 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1969 void ieee80211_offchannel_return(struct ieee80211_local *local);
1970 void ieee80211_roc_setup(struct ieee80211_local *local);
1971 void ieee80211_start_next_roc(struct ieee80211_local *local);
1972 void ieee80211_roc_purge(struct ieee80211_local *local,
1973 struct ieee80211_sub_if_data *sdata);
1974 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
1975 struct ieee80211_channel *chan,
1976 unsigned int duration, u64 *cookie);
1977 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1978 struct wireless_dev *wdev, u64 cookie);
1979 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
1980 struct cfg80211_mgmt_tx_params *params, u64 *cookie);
1981 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1982 struct wireless_dev *wdev, u64 cookie);
1984 /* channel switch handling */
1985 void ieee80211_csa_finalize_work(struct work_struct *work);
1986 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1987 struct cfg80211_csa_settings *params);
1989 /* color change handling */
1990 void ieee80211_color_change_finalize_work(struct work_struct *work);
1991 void ieee80211_color_collision_detection_work(struct work_struct *work);
1993 /* interface handling */
1994 #define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
1995 NETIF_F_HW_CSUM | NETIF_F_SG | \
1996 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE | \
1998 #define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM)
1999 #define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \
2000 MAC80211_SUPPORTED_FEATURES_RX)
2002 int ieee80211_iface_init(void);
2003 void ieee80211_iface_exit(void);
2004 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
2005 unsigned char name_assign_type,
2006 struct wireless_dev **new_wdev, enum nl80211_iftype type,
2007 struct vif_params *params);
2008 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
2009 enum nl80211_iftype type);
2010 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
2011 void ieee80211_remove_interfaces(struct ieee80211_local *local);
2012 u32 ieee80211_idle_off(struct ieee80211_local *local);
2013 void ieee80211_recalc_idle(struct ieee80211_local *local);
2014 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
2016 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
2017 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
2018 int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
2019 void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
2021 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
2022 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
2024 void ieee80211_recalc_offload(struct ieee80211_local *local);
2026 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
2028 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
2032 void ieee80211_link_setup(struct ieee80211_link_data *link);
2033 void ieee80211_link_init(struct ieee80211_sub_if_data *sdata,
2035 struct ieee80211_link_data *link,
2036 struct ieee80211_bss_conf *link_conf);
2037 void ieee80211_link_stop(struct ieee80211_link_data *link);
2038 int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata,
2039 u16 new_links, u16 dormant_links);
2040 void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata);
2041 int __ieee80211_set_active_links(struct ieee80211_vif *vif, u16 active_links);
2044 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
2045 void ieee80211_tx_pending(struct tasklet_struct *t);
2046 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
2047 struct net_device *dev);
2048 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
2049 struct net_device *dev);
2050 netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb,
2051 struct net_device *dev);
2052 void __ieee80211_subif_start_xmit(struct sk_buff *skb,
2053 struct net_device *dev,
2057 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
2058 struct sk_buff_head *skbs);
2060 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
2061 struct sk_buff *skb, u32 info_flags);
2062 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
2063 int retry_count, int shift, bool send_to_cooked,
2064 struct ieee80211_tx_status *status);
2066 void ieee80211_check_fast_xmit(struct sta_info *sta);
2067 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
2068 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
2069 void ieee80211_clear_fast_xmit(struct sta_info *sta);
2070 int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
2071 const u8 *buf, size_t len,
2072 const u8 *dest, __be16 proto, bool unencrypted,
2073 int link_id, u64 *cookie);
2074 int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev,
2075 const u8 *buf, size_t len);
2076 void __ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
2077 struct sta_info *sta,
2078 struct ieee80211_fast_tx *fast_tx,
2079 struct sk_buff *skb, bool ampdu,
2080 const u8 *da, const u8 *sa);
2081 void ieee80211_aggr_check(struct ieee80211_sub_if_data *sdata,
2082 struct sta_info *sta, struct sk_buff *skb);
2085 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
2086 struct ieee80211_sta_ht_cap *ht_cap);
2087 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
2088 struct ieee80211_supported_band *sband,
2089 const struct ieee80211_ht_cap *ht_cap_ie,
2090 struct link_sta_info *link_sta);
2091 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
2092 const u8 *da, u16 tid,
2093 u16 initiator, u16 reason_code);
2094 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
2095 enum ieee80211_smps_mode smps, const u8 *da,
2097 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
2098 enum ieee80211_smps_mode smps_mode_new);
2100 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
2101 u16 initiator, u16 reason, bool stop);
2102 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
2103 u16 initiator, u16 reason, bool stop);
2104 void ___ieee80211_start_rx_ba_session(struct sta_info *sta,
2105 u8 dialog_token, u16 timeout,
2106 u16 start_seq_num, u16 ba_policy, u16 tid,
2107 u16 buf_size, bool tx, bool auto_seq,
2108 const struct ieee80211_addba_ext_ie *addbaext);
2109 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
2110 enum ieee80211_agg_stop_reason reason);
2111 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
2112 struct sta_info *sta,
2113 struct ieee80211_mgmt *mgmt, size_t len);
2114 void ieee80211_process_addba_resp(struct ieee80211_local *local,
2115 struct sta_info *sta,
2116 struct ieee80211_mgmt *mgmt,
2118 void ieee80211_process_addba_request(struct ieee80211_local *local,
2119 struct sta_info *sta,
2120 struct ieee80211_mgmt *mgmt,
2123 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
2124 enum ieee80211_agg_stop_reason reason);
2125 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
2126 enum ieee80211_agg_stop_reason reason);
2127 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid,
2128 struct tid_ampdu_tx *tid_tx);
2129 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
2130 struct tid_ampdu_tx *tid_tx);
2131 void ieee80211_ba_session_work(struct work_struct *work);
2132 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
2133 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
2135 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
2136 enum nl80211_smps_mode
2137 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps);
2141 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
2142 struct ieee80211_supported_band *sband,
2143 const struct ieee80211_vht_cap *vht_cap_ie,
2144 const struct ieee80211_vht_cap *vht_cap_ie2,
2145 struct link_sta_info *link_sta);
2146 enum ieee80211_sta_rx_bandwidth
2147 ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta);
2148 enum ieee80211_sta_rx_bandwidth
2149 ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta);
2150 void ieee80211_sta_set_rx_nss(struct link_sta_info *link_sta);
2151 enum ieee80211_sta_rx_bandwidth
2152 ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
2153 enum nl80211_chan_width
2154 ieee80211_sta_cap_chan_bw(struct link_sta_info *link_sta);
2155 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
2156 struct ieee80211_link_data *link,
2157 struct ieee80211_mgmt *mgmt);
2158 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2159 struct link_sta_info *sta,
2160 u8 opmode, enum nl80211_band band);
2161 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2162 struct link_sta_info *sta,
2163 u8 opmode, enum nl80211_band band);
2164 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
2165 struct ieee80211_sta_vht_cap *vht_cap);
2166 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
2167 u16 vht_mask[NL80211_VHT_NSS_MAX]);
2168 enum nl80211_chan_width
2169 ieee80211_sta_rx_bw_to_chan_width(struct link_sta_info *sta);
2173 ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
2174 struct ieee80211_supported_band *sband,
2175 const u8 *he_cap_ie, u8 he_cap_len,
2176 const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
2177 struct link_sta_info *link_sta);
2179 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif,
2180 const struct ieee80211_he_spr *he_spr_ie_elem);
2183 ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif,
2184 const struct ieee80211_he_operation *he_op_ie_elem);
2187 void ieee80211_s1g_sta_rate_init(struct sta_info *sta);
2188 bool ieee80211_s1g_is_twt_setup(struct sk_buff *skb);
2189 void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata,
2190 struct sk_buff *skb);
2191 void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata,
2192 struct sk_buff *skb);
2194 /* Spectrum management */
2195 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
2196 struct ieee80211_mgmt *mgmt,
2199 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
2200 * @sdata: the sdata of the interface which has received the frame
2201 * @elems: parsed 802.11 elements received with the frame
2202 * @current_band: indicates the current band
2203 * @vht_cap_info: VHT capabilities of the transmitter
2204 * @conn_flags: contains information about own capabilities and restrictions
2205 * to decide which channel switch announcements can be accepted, using
2206 * flags from &enum ieee80211_conn_flags.
2207 * @bssid: the currently connected bssid (for reporting)
2208 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
2209 All of them will be filled with if success only.
2210 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
2212 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
2213 struct ieee802_11_elems *elems,
2214 enum nl80211_band current_band,
2216 ieee80211_conn_flags_t conn_flags, u8 *bssid,
2217 struct ieee80211_csa_ie *csa_ie);
2219 /* Suspend/resume and hw reconfiguration */
2220 int ieee80211_reconfig(struct ieee80211_local *local);
2221 void ieee80211_stop_device(struct ieee80211_local *local);
2223 int __ieee80211_suspend(struct ieee80211_hw *hw,
2224 struct cfg80211_wowlan *wowlan);
2226 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
2228 struct ieee80211_local *local = hw_to_local(hw);
2230 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
2231 !test_bit(SCAN_COMPLETED, &local->scanning),
2232 "%s: resume with hardware scan still in progress\n",
2233 wiphy_name(hw->wiphy));
2235 return ieee80211_reconfig(hw_to_local(hw));
2238 /* utility functions/constants */
2239 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
2240 int ieee80211_frame_duration(enum nl80211_band band, size_t len,
2241 int rate, int erp, int short_preamble,
2243 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
2244 struct ieee80211_tx_queue_params *qparam,
2246 void ieee80211_set_wmm_default(struct ieee80211_link_data *link,
2247 bool bss_notify, bool enable_qos);
2248 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
2249 struct sta_info *sta, struct sk_buff *skb);
2251 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2252 struct sk_buff *skb, int tid, int link_id,
2253 enum nl80211_band band);
2255 /* sta_out needs to be checked for ERR_PTR() before using */
2256 int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
2257 struct sk_buff *skb,
2258 struct sta_info **sta_out);
2261 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2262 struct sk_buff *skb, int tid,
2263 enum nl80211_band band)
2266 __ieee80211_tx_skb_tid_band(sdata, skb, tid, -1, band);
2270 void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
2271 struct sk_buff *skb, int tid, int link_id);
2273 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
2274 struct sk_buff *skb)
2276 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
2277 ieee80211_tx_skb_tid(sdata, skb, 7, -1);
2281 * struct ieee80211_elems_parse_params - element parsing parameters
2282 * @start: pointer to the elements
2283 * @len: length of the elements
2284 * @action: %true if the elements came from an action frame
2285 * @filter: bitmap of element IDs to filter out while calculating
2287 * @crc: CRC starting value
2288 * @bss: the BSS to parse this as, for multi-BSSID cases this can
2289 * represent a non-transmitting BSS in which case the data
2290 * for that non-transmitting BSS is returned
2291 * @link_id: the link ID to parse elements for, if a STA profile
2292 * is present in the multi-link element, or -1 to ignore;
2293 * note that the code currently assumes parsing an association
2294 * (or re-association) response frame if this is given
2295 * @from_ap: frame is received from an AP (currently used only
2296 * for EHT capabilities parsing)
2298 struct ieee80211_elems_parse_params {
2304 struct cfg80211_bss *bss;
2309 struct ieee802_11_elems *
2310 ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params);
2312 static inline struct ieee802_11_elems *
2313 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
2314 u64 filter, u32 crc,
2315 struct cfg80211_bss *bss)
2317 struct ieee80211_elems_parse_params params = {
2327 return ieee802_11_parse_elems_full(¶ms);
2330 static inline struct ieee802_11_elems *
2331 ieee802_11_parse_elems(const u8 *start, size_t len, bool action,
2332 struct cfg80211_bss *bss)
2334 return ieee802_11_parse_elems_crc(start, len, action, 0, 0, bss);
2337 void ieee80211_fragment_element(struct sk_buff *skb, u8 *len_pos, u8 frag_id);
2339 extern const int ieee802_1d_to_ac[8];
2341 static inline int ieee80211_ac_from_tid(int tid)
2343 return ieee802_1d_to_ac[tid & 7];
2346 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
2347 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
2348 void ieee80211_dynamic_ps_timer(struct timer_list *t);
2349 void ieee80211_send_nullfunc(struct ieee80211_local *local,
2350 struct ieee80211_sub_if_data *sdata,
2352 void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local,
2353 struct ieee80211_sub_if_data *sdata);
2354 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
2355 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
2357 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
2358 unsigned long queues,
2359 enum queue_stop_reason reason,
2361 void ieee80211_stop_vif_queues(struct ieee80211_local *local,
2362 struct ieee80211_sub_if_data *sdata,
2363 enum queue_stop_reason reason);
2364 void ieee80211_wake_vif_queues(struct ieee80211_local *local,
2365 struct ieee80211_sub_if_data *sdata,
2366 enum queue_stop_reason reason);
2367 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
2368 unsigned long queues,
2369 enum queue_stop_reason reason,
2371 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
2372 enum queue_stop_reason reason,
2374 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
2375 enum queue_stop_reason reason,
2377 void ieee80211_add_pending_skb(struct ieee80211_local *local,
2378 struct sk_buff *skb);
2379 void ieee80211_add_pending_skbs(struct ieee80211_local *local,
2380 struct sk_buff_head *skbs);
2381 void ieee80211_flush_queues(struct ieee80211_local *local,
2382 struct ieee80211_sub_if_data *sdata, bool drop);
2383 void __ieee80211_flush_queues(struct ieee80211_local *local,
2384 struct ieee80211_sub_if_data *sdata,
2385 unsigned int queues, bool drop);
2387 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
2390 * It's unsafe to try to do any work during reconfigure flow.
2391 * When the flow ends the work will be requeued.
2393 if (local->in_reconfig)
2397 * If quiescing is set, we are racing with __ieee80211_suspend.
2398 * __ieee80211_suspend flushes the workers after setting quiescing,
2399 * and we check quiescing / suspended before enqueing new workers.
2400 * We should abort the worker to avoid the races below.
2402 if (local->quiescing)
2406 * We might already be suspended if the following scenario occurs:
2407 * __ieee80211_suspend Control path
2409 * if (local->quiescing)
2411 * local->quiescing = true;
2412 * flush_workqueue();
2414 * local->suspended = true;
2415 * local->quiescing = false;
2416 * worker starts running...
2418 if (local->suspended)
2424 int ieee80211_txq_setup_flows(struct ieee80211_local *local);
2425 void ieee80211_txq_set_params(struct ieee80211_local *local);
2426 void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
2427 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
2428 struct sta_info *sta,
2429 struct txq_info *txq, int tid);
2430 void ieee80211_txq_purge(struct ieee80211_local *local,
2431 struct txq_info *txqi);
2432 void ieee80211_txq_remove_vlan(struct ieee80211_local *local,
2433 struct ieee80211_sub_if_data *sdata);
2434 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
2435 struct txq_info *txqi);
2436 void ieee80211_wake_txqs(struct tasklet_struct *t);
2437 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
2438 u16 transaction, u16 auth_alg, u16 status,
2439 const u8 *extra, size_t extra_len, const u8 *bssid,
2440 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
2442 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
2443 const u8 *da, const u8 *bssid,
2444 u16 stype, u16 reason,
2445 bool send_frame, u8 *frame_buf);
2446 u8 *ieee80211_write_he_6ghz_cap(u8 *pos, __le16 cap, u8 *end);
2449 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0),
2450 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1),
2451 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2),
2454 int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer,
2456 struct ieee80211_scan_ies *ie_desc,
2457 const u8 *ie, size_t ie_len,
2458 u8 bands_used, u32 *rate_masks,
2459 struct cfg80211_chan_def *chandef,
2461 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
2462 const u8 *src, const u8 *dst,
2464 struct ieee80211_channel *chan,
2465 const u8 *ssid, size_t ssid_len,
2466 const u8 *ie, size_t ie_len,
2468 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
2469 struct ieee802_11_elems *elems,
2470 enum nl80211_band band, u32 *basic_rates);
2471 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2472 struct ieee80211_link_data *link,
2473 enum ieee80211_smps_mode smps_mode);
2474 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata,
2475 struct ieee80211_link_data *link);
2476 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata,
2479 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
2480 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2482 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2483 const struct cfg80211_chan_def *chandef,
2484 u16 prot_mode, bool rifs_mode);
2485 void ieee80211_ie_build_wide_bw_cs(u8 *pos,
2486 const struct cfg80211_chan_def *chandef);
2487 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2489 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2490 const struct cfg80211_chan_def *chandef);
2491 u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype);
2492 u8 *ieee80211_ie_build_he_cap(ieee80211_conn_flags_t disable_flags, u8 *pos,
2493 const struct ieee80211_sta_he_cap *he_cap,
2495 void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data *sdata,
2496 enum ieee80211_smps_mode smps_mode,
2497 struct sk_buff *skb);
2498 u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef);
2499 u8 *ieee80211_ie_build_eht_oper(u8 *pos, struct cfg80211_chan_def *chandef,
2500 const struct ieee80211_sta_eht_cap *eht_cap);
2501 int ieee80211_parse_bitrates(enum nl80211_chan_width width,
2502 const struct ieee80211_supported_band *sband,
2503 const u8 *srates, int srates_len, u32 *rates);
2504 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
2505 struct sk_buff *skb, bool need_basic,
2506 enum nl80211_band band);
2507 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
2508 struct sk_buff *skb, bool need_basic,
2509 enum nl80211_band band);
2510 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
2511 void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata,
2512 struct ieee80211_sta_s1g_cap *caps,
2513 struct sk_buff *skb);
2514 void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata,
2515 struct sk_buff *skb);
2516 u8 *ieee80211_ie_build_s1g_cap(u8 *pos, struct ieee80211_sta_s1g_cap *s1g_cap);
2518 /* channel management */
2519 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2520 struct cfg80211_chan_def *chandef);
2521 bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
2522 const struct ieee80211_vht_operation *oper,
2523 const struct ieee80211_ht_operation *htop,
2524 struct cfg80211_chan_def *chandef);
2525 void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation *eht_oper,
2526 bool support_160, bool support_320,
2527 struct cfg80211_chan_def *chandef);
2528 bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
2529 const struct ieee80211_he_operation *he_oper,
2530 const struct ieee80211_eht_operation *eht_oper,
2531 struct cfg80211_chan_def *chandef);
2532 bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper,
2533 struct cfg80211_chan_def *chandef);
2534 ieee80211_conn_flags_t ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
2537 ieee80211_link_use_channel(struct ieee80211_link_data *link,
2538 const struct cfg80211_chan_def *chandef,
2539 enum ieee80211_chanctx_mode mode);
2541 ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link,
2542 const struct cfg80211_chan_def *chandef,
2543 enum ieee80211_chanctx_mode mode,
2544 bool radar_required);
2546 ieee80211_link_use_reserved_context(struct ieee80211_link_data *link);
2547 int ieee80211_link_unreserve_chanctx(struct ieee80211_link_data *link);
2550 ieee80211_link_change_bandwidth(struct ieee80211_link_data *link,
2551 const struct cfg80211_chan_def *chandef,
2553 void ieee80211_link_release_channel(struct ieee80211_link_data *link);
2554 void ieee80211_link_vlan_copy_chanctx(struct ieee80211_link_data *link);
2555 void ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link,
2557 int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2558 struct ieee80211_chanctx *ctx);
2560 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2561 struct ieee80211_chanctx *chanctx);
2562 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2563 struct ieee80211_chanctx *ctx,
2564 struct ieee80211_link_data *rsvd_for);
2565 bool ieee80211_is_radar_required(struct ieee80211_local *local);
2567 void ieee80211_dfs_cac_timer_work(struct work_struct *work);
2568 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2569 void ieee80211_dfs_radar_detected_work(struct work_struct *work);
2570 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2571 struct cfg80211_csa_settings *csa_settings);
2573 void ieee80211_recalc_dtim(struct ieee80211_local *local,
2574 struct ieee80211_sub_if_data *sdata);
2575 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2576 const struct cfg80211_chan_def *chandef,
2577 enum ieee80211_chanctx_mode chanmode,
2579 int ieee80211_max_num_channels(struct ieee80211_local *local);
2580 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2581 struct ieee80211_chanctx *ctx);
2584 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2585 const u8 *peer, int link_id,
2586 u8 action_code, u8 dialog_token, u16 status_code,
2587 u32 peer_capability, bool initiator,
2588 const u8 *extra_ies, size_t extra_ies_len);
2589 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2590 const u8 *peer, enum nl80211_tdls_operation oper);
2591 void ieee80211_tdls_peer_del_work(struct work_struct *wk);
2592 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2593 const u8 *addr, u8 oper_class,
2594 struct cfg80211_chan_def *chandef);
2595 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2596 struct net_device *dev,
2598 void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
2599 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
2600 const u8 *peer, u16 reason);
2602 ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata,
2603 struct sk_buff *skb);
2606 const char *ieee80211_get_reason_code_string(u16 reason_code);
2607 u16 ieee80211_encode_usf(int val);
2608 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
2609 enum nl80211_iftype type);
2611 extern const struct ethtool_ops ieee80211_ethtool_ops;
2613 u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw,
2614 struct ieee80211_vif *vif,
2615 struct ieee80211_sta *pubsta,
2616 int len, bool ampdu);
2617 #ifdef CONFIG_MAC80211_NOINLINE
2618 #define debug_noinline noinline
2620 #define debug_noinline
2623 void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache);
2624 void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache);
2626 u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata, u8 iftype);
2627 u8 *ieee80211_ie_build_eht_cap(u8 *pos,
2628 const struct ieee80211_sta_he_cap *he_cap,
2629 const struct ieee80211_sta_eht_cap *eht_cap,
2634 ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata,
2635 struct ieee80211_supported_band *sband,
2636 const u8 *he_cap_ie, u8 he_cap_len,
2637 const struct ieee80211_eht_cap_elem *eht_cap_ie_elem,
2639 struct link_sta_info *link_sta);
2640 #endif /* IEEE80211_I_H */