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;
413 } link[IEEE80211_MLD_MAX_NUM_LINKS];
415 u8 ap_addr[ETH_ALEN] __aligned(2);
417 /* this is for a workaround, so we use it only for non-MLO */
418 const u8 *supp_rates;
421 unsigned long timeout;
424 u8 prev_ap_addr[ETH_ALEN];
425 u8 ssid[IEEE80211_MAX_SSID_LEN];
430 bool timeout_started;
433 unsigned int assoc_link_id;
435 u8 fils_nonces[2 * FILS_NONCE_LEN];
436 u8 fils_kek[FILS_MAX_KEK_LEN];
440 u8 *ie_pos; /* used to fill ie[] with link[].elems */
444 struct ieee80211_sta_tx_tspec {
445 /* timestamp of the first packet in the time slice */
446 unsigned long time_slice_start;
448 u32 admitted_time; /* in usecs, unlike over the air */
450 s8 up; /* signed to be able to invalidate with -1 during teardown */
452 /* consumed TX time in microseconds in the time slice */
453 u32 consumed_tx_time;
455 TX_TSPEC_ACTION_NONE = 0,
456 TX_TSPEC_ACTION_DOWNGRADE,
457 TX_TSPEC_ACTION_STOP_DOWNGRADE,
462 DECLARE_EWMA(beacon_signal, 4, 4)
464 struct ieee80211_if_managed {
465 struct timer_list timer;
466 struct timer_list conn_mon_timer;
467 struct timer_list bcn_mon_timer;
468 struct work_struct monitor_work;
469 struct wiphy_work beacon_connection_loss_work;
470 struct wiphy_work csa_connection_drop_work;
472 unsigned long beacon_timeout;
473 unsigned long probe_timeout;
474 int probe_send_count;
475 bool nullfunc_failed;
476 u8 connection_loss:1,
481 struct ieee80211_mgd_auth_data *auth_data;
482 struct ieee80211_mgd_assoc_data *assoc_data;
484 bool powersave; /* powersave requested for this iface */
485 bool broken_ap; /* AP is broken -- turn off powersave */
490 bool status_received;
494 IEEE80211_MFP_DISABLED,
495 IEEE80211_MFP_OPTIONAL,
496 IEEE80211_MFP_REQUIRED
497 } mfp; /* management frame protection */
500 * Bitmask of enabled u-apsd queues,
501 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
504 unsigned int uapsd_queues;
507 * Maximum number of buffered frames AP can deliver during a
508 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
509 * Needs a new association to take effect.
511 unsigned int uapsd_max_sp_len;
516 * State variables for keeping track of RSSI of the AP currently
517 * connected to and informing driver when RSSI has gone
518 * below/above a certain threshold.
520 int rssi_min_thold, rssi_max_thold;
522 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
523 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
524 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
525 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
526 struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */
527 struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */
530 u8 tdls_peer[ETH_ALEN] __aligned(2);
531 struct delayed_work tdls_peer_del_work;
532 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
533 struct sk_buff *teardown_skb; /* A copy to send through the AP */
534 spinlock_t teardown_lock; /* To lock changing teardown_skb */
535 bool tdls_wider_bw_prohibited;
537 /* WMM-AC TSPEC support */
538 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
539 /* Use a separate work struct so that we can do something here
540 * while the sdata->work is flushing the queues, for example.
541 * otherwise, in scenarios where we hardly get any traffic out
542 * on the BE queue, but there's a lot of VO traffic, we might
543 * get stuck in a downgraded situation and flush takes forever.
545 struct delayed_work tx_tspec_wk;
547 /* Information elements from the last transmitted (Re)Association
551 size_t assoc_req_ies_len;
554 struct ieee80211_if_ibss {
555 struct timer_list timer;
556 struct wiphy_work csa_connection_drop_work;
558 unsigned long last_scan_completed;
567 bool userspace_handles_dfs;
569 u8 bssid[ETH_ALEN] __aligned(2);
570 u8 ssid[IEEE80211_MAX_SSID_LEN];
573 struct cfg80211_chan_def chandef;
575 unsigned long ibss_join_req;
576 /* probe response/beacon for IBSS */
577 struct beacon_data __rcu *presp;
579 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
580 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
582 spinlock_t incomplete_lock;
583 struct list_head incomplete_stations;
586 IEEE80211_IBSS_MLME_SEARCH,
587 IEEE80211_IBSS_MLME_JOINED,
592 * struct ieee80211_if_ocb - OCB mode state
594 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
595 * @wrkq_flags: OCB deferred task action
596 * @incomplete_lock: delayed STA insertion lock
597 * @incomplete_stations: list of STAs waiting for delayed insertion
598 * @joined: indication if the interface is connected to an OCB network
600 struct ieee80211_if_ocb {
601 struct timer_list housekeeping_timer;
602 unsigned long wrkq_flags;
604 spinlock_t incomplete_lock;
605 struct list_head incomplete_stations;
611 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
613 * these declarations define the interface, which enables
614 * vendor-specific mesh synchronization
617 struct ieee802_11_elems;
618 struct ieee80211_mesh_sync_ops {
619 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, u16 stype,
620 struct ieee80211_mgmt *mgmt, unsigned int len,
621 const struct ieee80211_meshconf_ie *mesh_cfg,
622 struct ieee80211_rx_status *rx_status);
624 /* should be called with beacon_data under RCU read lock */
625 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata,
626 struct beacon_data *beacon);
627 /* add other framework functions here */
630 struct mesh_csa_settings {
631 struct rcu_head rcu_head;
632 struct cfg80211_csa_settings settings;
638 * @known_gates: list of known mesh gates and their mpaths by the station. The
639 * gate's mpath may or may not be resolved and active.
640 * @gates_lock: protects updates to known_gates
641 * @rhead: the rhashtable containing struct mesh_paths, keyed by dest addr
642 * @walk_head: linked list containing all mesh_path objects
643 * @walk_lock: lock protecting walk_head
644 * @entries: number of entries in the table
647 struct hlist_head known_gates;
648 spinlock_t gates_lock;
649 struct rhashtable rhead;
650 struct hlist_head walk_head;
651 spinlock_t walk_lock;
652 atomic_t entries; /* Up to MAX_MESH_NEIGHBOURS */
656 * struct mesh_tx_cache - mesh fast xmit header cache
658 * @rht: hash table containing struct ieee80211_mesh_fast_tx, using skb DA as key
659 * @walk_head: linked list containing all ieee80211_mesh_fast_tx objects
660 * @walk_lock: lock protecting walk_head and rht
662 struct mesh_tx_cache {
663 struct rhashtable rht;
664 struct hlist_head walk_head;
665 spinlock_t walk_lock;
668 struct ieee80211_if_mesh {
669 struct timer_list housekeeping_timer;
670 struct timer_list mesh_path_timer;
671 struct timer_list mesh_path_root_timer;
673 unsigned long wrkq_flags;
674 unsigned long mbss_changed;
676 bool userspace_handles_dfs;
678 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
680 /* Active Path Selection Protocol Identifier */
682 /* Active Path Selection Metric Identifier */
684 /* Congestion Control Mode Identifier */
686 /* Synchronization Protocol Identifier */
688 /* Authentication Protocol Identifier */
690 /* Local mesh Sequence Number */
692 /* Last used PREQ ID */
695 /* Timestamp of last SN update */
696 unsigned long last_sn_update;
697 /* Time when it's ok to send next PERR */
698 unsigned long next_perr;
699 /* Timestamp of last PREQ sent */
700 unsigned long last_preq;
701 struct mesh_rmc *rmc;
702 spinlock_t mesh_preq_queue_lock;
703 struct mesh_preq_queue preq_queue;
705 struct mesh_stats mshstats;
706 struct mesh_config mshcfg;
707 atomic_t estab_plinks;
708 atomic_t mesh_seqnum;
709 bool accepting_plinks;
711 struct beacon_data __rcu *beacon;
715 IEEE80211_MESH_SEC_NONE = 0x0,
716 IEEE80211_MESH_SEC_AUTHED = 0x1,
717 IEEE80211_MESH_SEC_SECURED = 0x2,
720 /* Extensible Synchronization Framework */
721 const struct ieee80211_mesh_sync_ops *sync_ops;
722 s64 sync_offset_clockdrift_max;
723 spinlock_t sync_offset_lock;
724 /* mesh power save */
725 enum nl80211_mesh_power_mode nonpeer_pm;
726 int ps_peers_light_sleep;
727 int ps_peers_deep_sleep;
729 /* Channel Switching Support */
730 struct mesh_csa_settings __rcu *csa;
732 IEEE80211_MESH_CSA_ROLE_NONE,
733 IEEE80211_MESH_CSA_ROLE_INIT,
734 IEEE80211_MESH_CSA_ROLE_REPEATER,
739 /* offset from skb->data while building IE */
742 struct mesh_table mesh_paths;
743 struct mesh_table mpp_paths; /* Store paths for MPP&MAP */
744 int mesh_paths_generation;
745 int mpp_paths_generation;
746 struct mesh_tx_cache tx_cache;
749 #ifdef CONFIG_MAC80211_MESH
750 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
751 do { (msh)->mshstats.name++; } while (0)
753 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
758 * enum ieee80211_sub_if_data_flags - virtual interface flags
760 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
761 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
762 * associated stations and deliver multicast frames both
763 * back to wireless media and to the local net stack.
764 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
765 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
766 * @IEEE80211_SDATA_DISCONNECT_HW_RESTART: Disconnect after hardware restart
769 enum ieee80211_sub_if_data_flags {
770 IEEE80211_SDATA_ALLMULTI = BIT(0),
771 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
772 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
773 IEEE80211_SDATA_IN_DRIVER = BIT(5),
774 IEEE80211_SDATA_DISCONNECT_HW_RESTART = BIT(6),
778 * enum ieee80211_sdata_state_bits - virtual interface state bits
779 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
780 * mirrors netif_running() but is separate for interface type
781 * change handling while the interface is up
782 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
783 * mode, so queues are stopped
784 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
785 * to offchannel, reset when offchannel returns
787 enum ieee80211_sdata_state_bits {
789 SDATA_STATE_OFFCHANNEL,
790 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
794 * enum ieee80211_chanctx_mode - channel context configuration mode
796 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
797 * multiple interfaces
798 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
799 * only by a single interface. This can be used for example for
800 * non-fixed channel IBSS.
802 enum ieee80211_chanctx_mode {
803 IEEE80211_CHANCTX_SHARED,
804 IEEE80211_CHANCTX_EXCLUSIVE
808 * enum ieee80211_chanctx_replace_state - channel context replacement state
810 * This is used for channel context in-place reservations that require channel
811 * context switch/swap.
813 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
814 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
815 * by a (not yet registered) channel context pointed by %replace_ctx.
816 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
817 * replaces an existing channel context pointed to by %replace_ctx.
819 enum ieee80211_chanctx_replace_state {
820 IEEE80211_CHANCTX_REPLACE_NONE,
821 IEEE80211_CHANCTX_WILL_BE_REPLACED,
822 IEEE80211_CHANCTX_REPLACES_OTHER,
825 struct ieee80211_chanctx {
826 struct list_head list;
827 struct rcu_head rcu_head;
829 struct list_head assigned_links;
830 struct list_head reserved_links;
832 enum ieee80211_chanctx_replace_state replace_state;
833 struct ieee80211_chanctx *replace_ctx;
835 enum ieee80211_chanctx_mode mode;
838 struct ieee80211_chanctx_conf conf;
841 struct mac80211_qos_map {
842 struct cfg80211_qos_map qos_map;
843 struct rcu_head rcu_head;
846 enum txq_info_flags {
849 IEEE80211_TXQ_NO_AMSDU,
854 * struct txq_info - per tid queue
856 * @tin: contains packets split into multiple flows
857 * @def_flow: used as a fallback flow when a packet destined to @tin hashes to
858 * a fq_flow which is already owned by a different tin
859 * @def_cvars: codel vars for @def_flow
860 * @frags: used to keep fragments created after dequeue
861 * @schedule_order: used with ieee80211_local->active_txqs
862 * @schedule_round: counter to prevent infinite loops on TXQ scheduling
866 struct codel_vars def_cvars;
867 struct codel_stats cstats;
870 struct list_head schedule_order;
872 struct sk_buff_head frags;
877 struct ieee80211_txq txq;
880 struct ieee80211_if_mntr {
882 u8 mu_follow_addr[ETH_ALEN] __aligned(2);
884 struct list_head list;
888 * struct ieee80211_if_nan - NAN state
890 * @conf: current NAN configuration
891 * @func_ids: a bitmap of available instance_id's
893 struct ieee80211_if_nan {
894 struct cfg80211_nan_conf conf;
896 /* protects function_inst_ids */
897 spinlock_t func_lock;
898 struct idr function_inst_ids;
901 struct ieee80211_link_data_managed {
902 u8 bssid[ETH_ALEN] __aligned(2);
905 enum ieee80211_smps_mode req_smps, /* requested smps mode */
906 driver_smps_mode; /* smps mode request */
908 ieee80211_conn_flags_t conn_flags;
912 bool tdls_chan_switch_prohibited;
915 bool tracking_signal_avg;
916 bool disable_wmm_tracking;
917 bool operating_11g_mode;
919 bool csa_waiting_bcn;
920 bool csa_ignored_same_chan;
921 struct wiphy_delayed_work chswitch_work;
923 struct wiphy_work request_smps_work;
924 bool beacon_crc_valid;
926 struct ewma_beacon_signal ave_beacon_signal;
927 int last_ave_beacon_signal;
930 * Number of Beacon frames used in ave_beacon_signal. This can be used
931 * to avoid generating less reliable cqm events that would be based
932 * only on couple of received frames.
934 unsigned int count_beacon_signal;
936 /* Number of times beacon loss was invoked. */
937 unsigned int beacon_loss_count;
940 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
941 * that triggered a cqm event. 0 indicates that no event has been
942 * generated for the current association.
944 int last_cqm_event_signal;
946 int wmm_last_param_set;
947 int mu_edca_last_param_set;
949 struct cfg80211_bss *bss;
952 struct ieee80211_link_data_ap {
953 struct beacon_data __rcu *beacon;
954 struct probe_resp __rcu *probe_resp;
955 struct fils_discovery_data __rcu *fils_discovery;
956 struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp;
958 /* to be used after channel switch. */
959 struct cfg80211_beacon_data *next_beacon;
962 struct ieee80211_link_data {
963 struct ieee80211_sub_if_data *sdata;
964 unsigned int link_id;
966 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
967 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
969 /* multicast keys only */
970 struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS +
971 NUM_DEFAULT_MGMT_KEYS +
972 NUM_DEFAULT_BEACON_KEYS];
973 struct ieee80211_key __rcu *default_multicast_key;
974 struct ieee80211_key __rcu *default_mgmt_key;
975 struct ieee80211_key __rcu *default_beacon_key;
977 struct work_struct csa_finalize_work;
978 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
980 bool operating_11g_mode;
982 struct cfg80211_chan_def csa_chandef;
984 struct work_struct color_change_finalize_work;
985 struct delayed_work color_collision_detect_work;
988 /* context reservation -- protected with chanctx_mtx */
989 struct ieee80211_chanctx *reserved_chanctx;
990 struct cfg80211_chan_def reserved_chandef;
991 bool reserved_radar_required;
995 enum ieee80211_smps_mode smps_mode;
997 int user_power_level; /* in dBm */
998 int ap_power_level; /* in dBm */
1000 bool radar_required;
1001 struct delayed_work dfs_cac_timer_work;
1004 struct ieee80211_link_data_managed mgd;
1005 struct ieee80211_link_data_ap ap;
1008 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
1010 struct ieee80211_bss_conf *conf;
1012 #ifdef CONFIG_MAC80211_DEBUGFS
1013 struct dentry *debugfs_dir;
1017 struct ieee80211_sub_if_data {
1018 struct list_head list;
1020 struct wireless_dev wdev;
1023 struct list_head key_list;
1025 /* count for keys needing tailroom space allocation */
1026 int crypto_tx_tailroom_needed_cnt;
1027 int crypto_tx_tailroom_pending_dec;
1028 struct delayed_work dec_tailroom_needed_wk;
1030 struct net_device *dev;
1031 struct ieee80211_local *local;
1035 unsigned long state;
1037 char name[IFNAMSIZ];
1039 struct ieee80211_fragment_cache frags;
1041 /* TID bitmap for NoAck policy */
1044 /* bit field of ACM bits (BIT(802.1D tag)) */
1047 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS];
1048 struct ieee80211_key __rcu *default_unicast_key;
1050 u16 sequence_number;
1052 __be16 control_port_protocol;
1053 bool control_port_no_encrypt;
1054 bool control_port_no_preauth;
1055 bool control_port_over_nl80211;
1057 atomic_t num_tx_queued;
1058 struct mac80211_qos_map __rcu *qos_map;
1060 /* used to reconfigure hardware SM PS */
1061 struct work_struct recalc_smps;
1063 struct wiphy_work work;
1064 struct sk_buff_head skb_queue;
1065 struct sk_buff_head status_queue;
1068 * AP this belongs to: self in AP mode and
1069 * corresponding AP in VLAN mode, NULL for
1070 * all others (might be needed later in IBSS)
1072 struct ieee80211_if_ap *bss;
1074 /* bitmap of allowed (non-MCS) rate indexes for rate control */
1075 u32 rc_rateidx_mask[NUM_NL80211_BANDS];
1077 bool rc_has_mcs_mask[NUM_NL80211_BANDS];
1078 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
1080 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
1081 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
1083 /* Beacon frame (non-MCS) rate (as a bitmap) */
1084 u32 beacon_rateidx_mask[NUM_NL80211_BANDS];
1085 bool beacon_rate_set;
1088 struct ieee80211_if_ap ap;
1089 struct ieee80211_if_vlan vlan;
1090 struct ieee80211_if_managed mgd;
1091 struct ieee80211_if_ibss ibss;
1092 struct ieee80211_if_mesh mesh;
1093 struct ieee80211_if_ocb ocb;
1094 struct ieee80211_if_mntr mntr;
1095 struct ieee80211_if_nan nan;
1098 struct ieee80211_link_data deflink;
1099 struct ieee80211_link_data __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS];
1101 /* for ieee80211_set_active_links_async() */
1102 struct work_struct activate_links_work;
1103 u16 desired_active_links;
1105 #ifdef CONFIG_MAC80211_DEBUGFS
1107 struct dentry *subdir_stations;
1108 struct dentry *default_unicast_key;
1109 struct dentry *default_multicast_key;
1110 struct dentry *default_mgmt_key;
1111 struct dentry *default_beacon_key;
1115 /* must be last, dynamically sized area in this! */
1116 struct ieee80211_vif vif;
1120 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
1122 return container_of(p, struct ieee80211_sub_if_data, vif);
1125 static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
1126 __acquires(&sdata->wdev.mtx)
1128 mutex_lock(&sdata->wdev.mtx);
1129 __acquire(&sdata->wdev.mtx);
1132 static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
1133 __releases(&sdata->wdev.mtx)
1135 mutex_unlock(&sdata->wdev.mtx);
1136 __release(&sdata->wdev.mtx);
1139 #define sdata_dereference(p, sdata) \
1140 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
1143 sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
1145 lockdep_assert_held(&sdata->wdev.mtx);
1149 ieee80211_chanwidth_get_shift(enum nl80211_chan_width width)
1152 case NL80211_CHAN_WIDTH_5:
1154 case NL80211_CHAN_WIDTH_10:
1162 ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
1164 return ieee80211_chanwidth_get_shift(chandef->width);
1168 ieee80211_vif_get_shift(struct ieee80211_vif *vif)
1170 struct ieee80211_chanctx_conf *chanctx_conf;
1174 chanctx_conf = rcu_dereference(vif->bss_conf.chanctx_conf);
1176 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
1183 ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems *elems,
1184 struct cfg80211_rnr_elems *rnr_elems,
1189 if (!elems || !elems->cnt || i > elems->cnt)
1192 if (i < elems->cnt) {
1193 len = elems->elem[i].len;
1195 len += rnr_elems->elem[i].len;
1196 for (i = elems->cnt; i < rnr_elems->cnt; i++)
1197 len += rnr_elems->elem[i].len;
1202 /* i == elems->cnt, calculate total length of all MBSSID elements */
1203 for (i = 0; i < elems->cnt; i++)
1204 len += elems->elem[i].len;
1207 for (i = 0; i < rnr_elems->cnt; i++)
1208 len += rnr_elems->elem[i].len;
1215 IEEE80211_RX_MSG = 1,
1216 IEEE80211_TX_STATUS_MSG = 2,
1219 enum queue_stop_reason {
1220 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1221 IEEE80211_QUEUE_STOP_REASON_PS,
1222 IEEE80211_QUEUE_STOP_REASON_CSA,
1223 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1224 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1225 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1226 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1227 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1228 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1229 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1230 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE,
1232 IEEE80211_QUEUE_STOP_REASONS,
1235 #ifdef CONFIG_MAC80211_LEDS
1236 struct tpt_led_trigger {
1238 const struct ieee80211_tpt_blink *blink_table;
1239 unsigned int blink_table_len;
1240 struct timer_list timer;
1241 struct ieee80211_local *local;
1242 unsigned long prev_traffic;
1243 unsigned long tx_bytes, rx_bytes;
1244 unsigned int active, want;
1250 * mac80211 scan flags - currently active scan mode
1252 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1253 * well be on the operating channel
1254 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1255 * determine if we are on the operating channel or not
1256 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1257 * channel. This should not interrupt normal traffic.
1258 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1259 * that the scan completed.
1260 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1261 * a scan complete for an aborted scan.
1262 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1264 * @SCAN_BEACON_WAIT: Set whenever we're passive scanning because of radar/no-IR
1265 * and could send a probe request after receiving a beacon.
1266 * @SCAN_BEACON_DONE: Beacon received, we can now send a probe request
1271 SCAN_ONCHANNEL_SCANNING,
1280 * enum mac80211_scan_state - scan state machine states
1282 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1283 * determines if we should keep on scanning or switch back to the
1285 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1286 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1287 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1289 * @SCAN_RESUME: Resume the scan and scan the next channel
1290 * @SCAN_ABORT: Abort the scan and go back to operating channel
1292 enum mac80211_scan_state {
1301 DECLARE_STATIC_KEY_FALSE(aql_disable);
1303 struct ieee80211_local {
1304 /* embed the driver visible part.
1305 * don't cast (use the static inlines below), but we keep
1306 * it first anyway so they become a no-op */
1307 struct ieee80211_hw hw;
1310 struct codel_vars *cvars;
1311 struct codel_params cparams;
1313 /* protects active_txqs and txqi->schedule_order */
1314 spinlock_t active_txq_lock[IEEE80211_NUM_ACS];
1315 struct list_head active_txqs[IEEE80211_NUM_ACS];
1316 u16 schedule_round[IEEE80211_NUM_ACS];
1318 /* serializes ieee80211_handle_wake_tx_queue */
1319 spinlock_t handle_wake_tx_queue_lock;
1322 u32 aql_txq_limit_low[IEEE80211_NUM_ACS];
1323 u32 aql_txq_limit_high[IEEE80211_NUM_ACS];
1325 atomic_t aql_total_pending_airtime;
1326 atomic_t aql_ac_pending_airtime[IEEE80211_NUM_ACS];
1328 const struct ieee80211_ops *ops;
1331 * private workqueue to mac80211. mac80211 makes this accessible
1332 * via ieee80211_queue_work()
1334 struct workqueue_struct *workqueue;
1336 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1337 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1338 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1339 spinlock_t queue_stop_reason_lock;
1342 int monitors, cooked_mntrs;
1343 /* number of interfaces with corresponding FIF_ flags */
1344 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1347 bool rx_mcast_action_reg;
1348 unsigned int filter_flags; /* FIF_* */
1350 bool wiphy_ciphers_allocated;
1354 /* protects the aggregated multicast list and filter calls */
1355 spinlock_t filter_lock;
1357 /* used for uploading changed mc list */
1358 struct work_struct reconfig_filter;
1360 /* aggregated multicast list */
1361 struct netdev_hw_addr_list mc_list;
1363 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1366 * suspended is true if we finished all the suspend _and_ we have
1367 * not yet come up from resume. This is to be used by mac80211
1368 * to ensure driver sanity during suspend and mac80211's own
1369 * sanity. It can eventually be used for WoW as well.
1373 /* suspending is true during the whole suspend process */
1377 * Resuming is true while suspended, but when we're reprogramming the
1378 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1379 * again even though some other parts of the stack are still suspended
1380 * and we still drop received frames to avoid waking the stack.
1385 * quiescing is true during the suspend process _only_ to
1386 * ease timer cancelling etc.
1390 /* device is started */
1393 /* device is during a HW reconfig */
1396 /* reconfiguration failed ... suppress some warnings etc. */
1397 bool reconfig_failure;
1399 /* wowlan is enabled -- don't reconfig on resume */
1402 struct work_struct radar_detected_work;
1404 /* number of RX chains the hardware has */
1407 /* bitmap of which sbands were copied */
1410 int tx_headroom; /* required headroom for hardware/radiotap */
1412 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1413 * added to skb_queue will be processed, but frames in
1414 * skb_queue_unreliable may be dropped if the total length of these
1415 * queues increases over the limit. */
1416 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1417 struct tasklet_struct tasklet;
1418 struct sk_buff_head skb_queue;
1419 struct sk_buff_head skb_queue_unreliable;
1421 spinlock_t rx_path_lock;
1425 * The mutex only protects the list, hash table and
1426 * counter, reads are done with RCU.
1428 struct mutex sta_mtx;
1429 spinlock_t tim_lock;
1430 unsigned long num_sta;
1431 struct list_head sta_list;
1432 struct rhltable sta_hash;
1433 struct rhltable link_sta_hash;
1434 struct timer_list sta_cleanup;
1437 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1438 struct tasklet_struct tx_pending_tasklet;
1439 struct tasklet_struct wake_txqs_tasklet;
1441 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1443 /* number of interfaces with allmulti RX */
1444 atomic_t iff_allmultis;
1446 struct rate_control_ref *rate_ctrl;
1448 struct arc4_ctx wep_tx_ctx;
1449 struct arc4_ctx wep_rx_ctx;
1453 struct list_head interfaces;
1454 struct list_head mon_list; /* only that are IFF_UP && !cooked */
1455 struct mutex iflist_mtx;
1458 * Key mutex, protects sdata's key_list and sta_info's
1459 * key pointers and ptk_idx (write access, they're RCU.)
1461 struct mutex key_mtx;
1463 /* mutex for scan and work locking */
1466 /* Scanning and BSS list */
1467 unsigned long scanning;
1468 struct cfg80211_ssid scan_ssid;
1469 struct cfg80211_scan_request *int_scan_req;
1470 struct cfg80211_scan_request __rcu *scan_req;
1471 struct ieee80211_scan_request *hw_scan_req;
1472 struct cfg80211_chan_def scan_chandef;
1473 enum nl80211_band hw_scan_band;
1474 int scan_channel_idx;
1476 int hw_scan_ies_bufsize;
1477 struct cfg80211_scan_info scan_info;
1479 struct work_struct sched_scan_stopped_work;
1480 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1481 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1482 u8 scan_addr[ETH_ALEN];
1484 unsigned long leave_oper_channel_time;
1485 enum mac80211_scan_state next_scan_state;
1486 struct delayed_work scan_work;
1487 struct ieee80211_sub_if_data __rcu *scan_sdata;
1488 /* For backward compatibility only -- do not use */
1489 struct cfg80211_chan_def _oper_chandef;
1491 /* Temporary remain-on-channel for off-channel operations */
1492 struct ieee80211_channel *tmp_channel;
1494 /* channel contexts */
1495 struct list_head chanctx_list;
1496 struct mutex chanctx_mtx;
1498 #ifdef CONFIG_MAC80211_LEDS
1499 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1500 struct led_trigger tpt_led;
1501 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1502 atomic_t radio_led_active, tpt_led_active;
1503 struct tpt_led_trigger *tpt_led_trigger;
1506 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1508 /* dot11CountersTable */
1509 u32 dot11TransmittedFragmentCount;
1510 u32 dot11MulticastTransmittedFrameCount;
1511 u32 dot11FailedCount;
1512 u32 dot11RetryCount;
1513 u32 dot11MultipleRetryCount;
1514 u32 dot11FrameDuplicateCount;
1515 u32 dot11ReceivedFragmentCount;
1516 u32 dot11MulticastReceivedFrameCount;
1517 u32 dot11TransmittedFrameCount;
1519 /* TX/RX handler statistics */
1520 unsigned int tx_handlers_drop;
1521 unsigned int tx_handlers_queued;
1522 unsigned int tx_handlers_drop_wep;
1523 unsigned int tx_handlers_drop_not_assoc;
1524 unsigned int tx_handlers_drop_unauth_port;
1525 unsigned int rx_handlers_drop;
1526 unsigned int rx_handlers_queued;
1527 unsigned int rx_handlers_drop_nullfunc;
1528 unsigned int rx_handlers_drop_defrag;
1529 unsigned int tx_expand_skb_head;
1530 unsigned int tx_expand_skb_head_cloned;
1531 unsigned int rx_expand_skb_head_defrag;
1532 unsigned int rx_handlers_fragments;
1533 unsigned int tx_status_drop;
1534 #define I802_DEBUG_INC(c) (c)++
1535 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1536 #define I802_DEBUG_INC(c) do { } while (0)
1537 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1540 int total_ps_buffered; /* total number of all buffered unicast and
1541 * multicast packets for power saving stations
1546 * PS can only be enabled when we have exactly one managed
1547 * interface (and monitors) in PS, this then points there.
1549 struct ieee80211_sub_if_data *ps_sdata;
1550 struct work_struct dynamic_ps_enable_work;
1551 struct work_struct dynamic_ps_disable_work;
1552 struct timer_list dynamic_ps_timer;
1553 struct notifier_block ifa_notifier;
1554 struct notifier_block ifa6_notifier;
1557 * The dynamic ps timeout configured from user space via WEXT -
1558 * this will override whatever chosen by mac80211 internally.
1560 int dynamic_ps_forced_timeout;
1562 int user_power_level; /* in dBm, for all interfaces */
1564 enum ieee80211_smps_mode smps_mode;
1566 struct work_struct restart_work;
1568 #ifdef CONFIG_MAC80211_DEBUGFS
1569 struct local_debugfsdentries {
1570 struct dentry *rcdir;
1571 struct dentry *keys;
1573 bool force_tx_status;
1577 * Remain-on-channel support
1579 struct delayed_work roc_work;
1580 struct list_head roc_list;
1581 struct work_struct hw_roc_start, hw_roc_done;
1582 unsigned long hw_roc_start_time;
1583 u64 roc_cookie_counter;
1585 struct idr ack_status_frames;
1586 spinlock_t ack_status_lock;
1588 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1590 /* virtual monitor interface */
1591 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1592 struct cfg80211_chan_def monitor_chandef;
1594 /* extended capabilities provided by mac80211 */
1598 static inline struct ieee80211_sub_if_data *
1599 IEEE80211_DEV_TO_SUB_IF(const struct net_device *dev)
1601 return netdev_priv(dev);
1604 static inline struct ieee80211_sub_if_data *
1605 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1607 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1610 static inline struct ieee80211_supported_band *
1611 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata)
1613 struct ieee80211_local *local = sdata->local;
1614 struct ieee80211_chanctx_conf *chanctx_conf;
1615 enum nl80211_band band;
1617 WARN_ON(sdata->vif.valid_links);
1620 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
1622 if (!chanctx_conf) {
1627 band = chanctx_conf->def.chan->band;
1630 return local->hw.wiphy->bands[band];
1633 static inline struct ieee80211_supported_band *
1634 ieee80211_get_link_sband(struct ieee80211_link_data *link)
1636 struct ieee80211_local *local = link->sdata->local;
1637 struct ieee80211_chanctx_conf *chanctx_conf;
1638 enum nl80211_band band;
1641 chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
1642 if (!chanctx_conf) {
1647 band = chanctx_conf->def.chan->band;
1650 return local->hw.wiphy->bands[band];
1653 /* this struct holds the value parsing from channel switch IE */
1654 struct ieee80211_csa_ie {
1655 struct cfg80211_chan_def chandef;
1661 u32 max_switch_time;
1664 /* Parsed Information Elements */
1665 struct ieee802_11_elems {
1670 /* pointers to IEs */
1671 const struct ieee80211_tdls_lnkie *lnk_id;
1672 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1673 const u8 *ext_capab;
1675 const u8 *supp_rates;
1676 const u8 *ds_params;
1677 const struct ieee80211_tim_ie *tim;
1681 const u8 *ext_supp_rates;
1683 const u8 *wmm_param;
1684 const struct ieee80211_ht_cap *ht_cap_elem;
1685 const struct ieee80211_ht_operation *ht_operation;
1686 const struct ieee80211_vht_cap *vht_cap_elem;
1687 const struct ieee80211_vht_operation *vht_operation;
1688 const struct ieee80211_meshconf_ie *mesh_config;
1690 const struct ieee80211_he_operation *he_operation;
1691 const struct ieee80211_he_spr *he_spr;
1692 const struct ieee80211_mu_edca_param_set *mu_edca_param_set;
1693 const struct ieee80211_he_6ghz_capa *he_6ghz_capa;
1694 const struct ieee80211_tx_pwr_env *tx_pwr_env[IEEE80211_TPE_MAX_IE_COUNT];
1695 const u8 *uora_element;
1698 const __le16 *awake_window;
1702 const struct ieee80211_rann_ie *rann;
1703 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1704 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1705 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1706 const u8 *max_channel_switch_time;
1707 const u8 *country_elem;
1708 const u8 *pwr_constr_elem;
1709 const u8 *cisco_dtpc_elem;
1710 const struct ieee80211_timeout_interval_ie *timeout_int;
1711 const u8 *opmode_notif;
1712 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1713 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1714 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie;
1715 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie;
1716 const struct ieee80211_bssid_index *bssid_index;
1717 u8 max_bssid_indicator;
1720 const struct ieee80211_addba_ext_ie *addba_ext_ie;
1721 const struct ieee80211_s1g_cap *s1g_capab;
1722 const struct ieee80211_s1g_oper_ie *s1g_oper;
1723 const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat;
1724 const struct ieee80211_aid_response_ie *aid_resp;
1725 const struct ieee80211_eht_cap_elem *eht_cap;
1726 const struct ieee80211_eht_operation *eht_operation;
1727 const struct ieee80211_multi_link_elem *multi_link;
1729 /* length of them, respectively */
1736 u8 ext_supp_rates_len;
1745 u8 country_elem_len;
1747 u8 tx_pwr_env_len[IEEE80211_TPE_MAX_IE_COUNT];
1751 /* mult-link element can be de-fragmented and thus u8 is not sufficient */
1752 size_t multi_link_len;
1755 * store the per station profile pointer and length in case that the
1756 * parsing also handled Multi-Link element parsing for a specific link
1759 struct ieee80211_mle_per_sta_profile *prof;
1760 size_t sta_prof_len;
1762 /* whether a parse error occurred while retrieving these elements */
1766 * scratch buffer that can be used for various element parsing related
1767 * tasks, e.g., element de-fragmentation etc.
1774 static inline struct ieee80211_local *hw_to_local(
1775 struct ieee80211_hw *hw)
1777 return container_of(hw, struct ieee80211_local, hw);
1780 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1782 return container_of(txq, struct txq_info, txq);
1785 static inline bool txq_has_queue(struct ieee80211_txq *txq)
1787 struct txq_info *txqi = to_txq_info(txq);
1789 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets);
1793 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1795 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1796 status->flag & RX_FLAG_MACTIME_END);
1797 return !!(status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END |
1798 RX_FLAG_MACTIME_PLCP_START));
1801 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
1802 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
1804 /* This function returns the number of multicast stations connected to this
1805 * interface. It returns -1 if that number is not tracked, that is for netdevs
1806 * not in AP or AP_VLAN mode or when using 4addr.
1809 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
1811 if (sdata->vif.type == NL80211_IFTYPE_AP)
1812 return atomic_read(&sdata->u.ap.num_mcast_sta);
1813 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
1814 return atomic_read(&sdata->u.vlan.num_mcast_sta);
1818 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1819 struct ieee80211_rx_status *status,
1820 unsigned int mpdu_len,
1821 unsigned int mpdu_offset);
1822 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1823 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1824 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1826 void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata,
1828 void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata,
1829 struct ieee80211_link_data *link,
1831 void ieee80211_configure_filter(struct ieee80211_local *local);
1832 u64 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1834 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
1835 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1836 u64 *cookie, gfp_t gfp);
1838 void ieee80211_check_fast_rx(struct sta_info *sta);
1839 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1840 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1841 void ieee80211_clear_fast_rx(struct sta_info *sta);
1843 bool ieee80211_is_our_addr(struct ieee80211_sub_if_data *sdata,
1844 const u8 *addr, int *out_link_id);
1847 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1848 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1849 struct cfg80211_auth_request *req);
1850 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1851 struct cfg80211_assoc_request *req);
1852 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1853 struct cfg80211_deauth_request *req);
1854 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1855 struct cfg80211_disassoc_request *req);
1856 void ieee80211_send_pspoll(struct ieee80211_local *local,
1857 struct ieee80211_sub_if_data *sdata);
1858 void ieee80211_recalc_ps(struct ieee80211_local *local);
1859 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1860 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1861 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1862 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1863 struct sk_buff *skb);
1864 void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata,
1865 struct sk_buff *skb);
1866 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1867 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1868 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1869 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1870 __le16 fc, bool acked);
1871 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1872 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1873 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1874 void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
1875 u8 reason, bool tx);
1876 void ieee80211_mgd_setup_link(struct ieee80211_link_data *link);
1877 void ieee80211_mgd_stop_link(struct ieee80211_link_data *link);
1878 void ieee80211_mgd_set_link_qos_params(struct ieee80211_link_data *link);
1881 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1882 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1883 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1884 const u8 *bssid, const u8 *addr, u32 supp_rates);
1885 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1886 struct cfg80211_ibss_params *params);
1887 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1888 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1889 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1890 struct sk_buff *skb);
1891 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1892 struct cfg80211_csa_settings *csa_settings,
1894 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata,
1896 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1899 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1900 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1901 const u8 *bssid, const u8 *addr, u32 supp_rates);
1902 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1903 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1904 struct ocb_setup *setup);
1905 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1908 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1909 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1910 struct sk_buff *skb);
1911 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1912 struct cfg80211_csa_settings *csa_settings,
1914 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata,
1917 /* scan/BSS handling */
1918 void ieee80211_scan_work(struct work_struct *work);
1919 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1920 const u8 *ssid, u8 ssid_len,
1921 struct ieee80211_channel **channels,
1922 unsigned int n_channels,
1923 enum nl80211_bss_scan_width scan_width);
1924 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1925 struct cfg80211_scan_request *req);
1926 void ieee80211_scan_cancel(struct ieee80211_local *local);
1927 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1928 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1930 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1931 struct ieee80211_bss *
1932 ieee80211_bss_info_update(struct ieee80211_local *local,
1933 struct ieee80211_rx_status *rx_status,
1934 struct ieee80211_mgmt *mgmt,
1936 struct ieee80211_channel *channel);
1937 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1938 struct ieee80211_bss *bss);
1940 /* scheduled scan handling */
1942 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1943 struct cfg80211_sched_scan_request *req);
1944 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1945 struct cfg80211_sched_scan_request *req);
1946 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
1947 void ieee80211_sched_scan_end(struct ieee80211_local *local);
1948 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1950 /* off-channel/mgmt-tx */
1951 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1952 void ieee80211_offchannel_return(struct ieee80211_local *local);
1953 void ieee80211_roc_setup(struct ieee80211_local *local);
1954 void ieee80211_start_next_roc(struct ieee80211_local *local);
1955 void ieee80211_roc_purge(struct ieee80211_local *local,
1956 struct ieee80211_sub_if_data *sdata);
1957 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
1958 struct ieee80211_channel *chan,
1959 unsigned int duration, u64 *cookie);
1960 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1961 struct wireless_dev *wdev, u64 cookie);
1962 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
1963 struct cfg80211_mgmt_tx_params *params, u64 *cookie);
1964 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1965 struct wireless_dev *wdev, u64 cookie);
1967 /* channel switch handling */
1968 void ieee80211_csa_finalize_work(struct work_struct *work);
1969 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1970 struct cfg80211_csa_settings *params);
1972 /* color change handling */
1973 void ieee80211_color_change_finalize_work(struct work_struct *work);
1974 void ieee80211_color_collision_detection_work(struct work_struct *work);
1976 /* interface handling */
1977 #define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
1978 NETIF_F_HW_CSUM | NETIF_F_SG | \
1979 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE | \
1981 #define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM)
1982 #define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \
1983 MAC80211_SUPPORTED_FEATURES_RX)
1985 int ieee80211_iface_init(void);
1986 void ieee80211_iface_exit(void);
1987 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1988 unsigned char name_assign_type,
1989 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1990 struct vif_params *params);
1991 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1992 enum nl80211_iftype type);
1993 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1994 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1995 u32 ieee80211_idle_off(struct ieee80211_local *local);
1996 void ieee80211_recalc_idle(struct ieee80211_local *local);
1997 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1999 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
2000 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
2001 int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
2002 void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
2004 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
2005 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
2007 void ieee80211_recalc_offload(struct ieee80211_local *local);
2009 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
2011 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
2015 void ieee80211_link_setup(struct ieee80211_link_data *link);
2016 void ieee80211_link_init(struct ieee80211_sub_if_data *sdata,
2018 struct ieee80211_link_data *link,
2019 struct ieee80211_bss_conf *link_conf);
2020 void ieee80211_link_stop(struct ieee80211_link_data *link);
2021 int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata,
2023 void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata);
2026 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
2027 void ieee80211_tx_pending(struct tasklet_struct *t);
2028 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
2029 struct net_device *dev);
2030 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
2031 struct net_device *dev);
2032 netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb,
2033 struct net_device *dev);
2034 void __ieee80211_subif_start_xmit(struct sk_buff *skb,
2035 struct net_device *dev,
2039 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
2040 struct sk_buff_head *skbs);
2042 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
2043 struct sk_buff *skb, u32 info_flags);
2044 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
2045 int retry_count, int shift, bool send_to_cooked,
2046 struct ieee80211_tx_status *status);
2048 void ieee80211_check_fast_xmit(struct sta_info *sta);
2049 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
2050 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
2051 void ieee80211_clear_fast_xmit(struct sta_info *sta);
2052 int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
2053 const u8 *buf, size_t len,
2054 const u8 *dest, __be16 proto, bool unencrypted,
2055 int link_id, u64 *cookie);
2056 int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev,
2057 const u8 *buf, size_t len);
2058 void __ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata,
2059 struct sta_info *sta,
2060 struct ieee80211_fast_tx *fast_tx,
2061 struct sk_buff *skb, bool ampdu,
2062 const u8 *da, const u8 *sa);
2063 void ieee80211_aggr_check(struct ieee80211_sub_if_data *sdata,
2064 struct sta_info *sta, struct sk_buff *skb);
2067 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
2068 struct ieee80211_sta_ht_cap *ht_cap);
2069 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
2070 struct ieee80211_supported_band *sband,
2071 const struct ieee80211_ht_cap *ht_cap_ie,
2072 struct link_sta_info *link_sta);
2073 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
2074 const u8 *da, u16 tid,
2075 u16 initiator, u16 reason_code);
2076 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
2077 enum ieee80211_smps_mode smps, const u8 *da,
2079 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
2080 enum ieee80211_smps_mode smps_mode_new);
2082 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
2083 u16 initiator, u16 reason, bool stop);
2084 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
2085 u16 initiator, u16 reason, bool stop);
2086 void ___ieee80211_start_rx_ba_session(struct sta_info *sta,
2087 u8 dialog_token, u16 timeout,
2088 u16 start_seq_num, u16 ba_policy, u16 tid,
2089 u16 buf_size, bool tx, bool auto_seq,
2090 const struct ieee80211_addba_ext_ie *addbaext);
2091 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
2092 enum ieee80211_agg_stop_reason reason);
2093 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
2094 struct sta_info *sta,
2095 struct ieee80211_mgmt *mgmt, size_t len);
2096 void ieee80211_process_addba_resp(struct ieee80211_local *local,
2097 struct sta_info *sta,
2098 struct ieee80211_mgmt *mgmt,
2100 void ieee80211_process_addba_request(struct ieee80211_local *local,
2101 struct sta_info *sta,
2102 struct ieee80211_mgmt *mgmt,
2105 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
2106 enum ieee80211_agg_stop_reason reason);
2107 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
2108 enum ieee80211_agg_stop_reason reason);
2109 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid,
2110 struct tid_ampdu_tx *tid_tx);
2111 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
2112 struct tid_ampdu_tx *tid_tx);
2113 void ieee80211_ba_session_work(struct work_struct *work);
2114 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
2115 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
2117 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
2118 enum nl80211_smps_mode
2119 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps);
2123 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
2124 struct ieee80211_supported_band *sband,
2125 const struct ieee80211_vht_cap *vht_cap_ie,
2126 struct link_sta_info *link_sta);
2127 enum ieee80211_sta_rx_bandwidth
2128 ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta);
2129 enum ieee80211_sta_rx_bandwidth
2130 ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta);
2131 void ieee80211_sta_set_rx_nss(struct link_sta_info *link_sta);
2132 enum ieee80211_sta_rx_bandwidth
2133 ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
2134 enum nl80211_chan_width
2135 ieee80211_sta_cap_chan_bw(struct link_sta_info *link_sta);
2136 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
2137 struct ieee80211_link_data *link,
2138 struct ieee80211_mgmt *mgmt);
2139 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2140 struct link_sta_info *sta,
2141 u8 opmode, enum nl80211_band band);
2142 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2143 struct link_sta_info *sta,
2144 u8 opmode, enum nl80211_band band);
2145 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
2146 struct ieee80211_sta_vht_cap *vht_cap);
2147 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
2148 u16 vht_mask[NL80211_VHT_NSS_MAX]);
2149 enum nl80211_chan_width
2150 ieee80211_sta_rx_bw_to_chan_width(struct link_sta_info *sta);
2154 ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
2155 struct ieee80211_supported_band *sband,
2156 const u8 *he_cap_ie, u8 he_cap_len,
2157 const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
2158 struct link_sta_info *link_sta);
2160 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif,
2161 const struct ieee80211_he_spr *he_spr_ie_elem);
2164 ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif,
2165 const struct ieee80211_he_operation *he_op_ie_elem);
2168 void ieee80211_s1g_sta_rate_init(struct sta_info *sta);
2169 bool ieee80211_s1g_is_twt_setup(struct sk_buff *skb);
2170 void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata,
2171 struct sk_buff *skb);
2172 void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata,
2173 struct sk_buff *skb);
2175 /* Spectrum management */
2176 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
2177 struct ieee80211_mgmt *mgmt,
2180 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
2181 * @sdata: the sdata of the interface which has received the frame
2182 * @elems: parsed 802.11 elements received with the frame
2183 * @current_band: indicates the current band
2184 * @vht_cap_info: VHT capabilities of the transmitter
2185 * @conn_flags: contains information about own capabilities and restrictions
2186 * to decide which channel switch announcements can be accepted, using
2187 * flags from &enum ieee80211_conn_flags.
2188 * @bssid: the currently connected bssid (for reporting)
2189 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
2190 All of them will be filled with if success only.
2191 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
2193 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
2194 struct ieee802_11_elems *elems,
2195 enum nl80211_band current_band,
2197 ieee80211_conn_flags_t conn_flags, u8 *bssid,
2198 struct ieee80211_csa_ie *csa_ie);
2200 /* Suspend/resume and hw reconfiguration */
2201 int ieee80211_reconfig(struct ieee80211_local *local);
2202 void ieee80211_stop_device(struct ieee80211_local *local);
2204 int __ieee80211_suspend(struct ieee80211_hw *hw,
2205 struct cfg80211_wowlan *wowlan);
2207 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
2209 struct ieee80211_local *local = hw_to_local(hw);
2211 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
2212 !test_bit(SCAN_COMPLETED, &local->scanning),
2213 "%s: resume with hardware scan still in progress\n",
2214 wiphy_name(hw->wiphy));
2216 return ieee80211_reconfig(hw_to_local(hw));
2219 /* utility functions/constants */
2220 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
2221 int ieee80211_frame_duration(enum nl80211_band band, size_t len,
2222 int rate, int erp, int short_preamble,
2224 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
2225 struct ieee80211_tx_queue_params *qparam,
2227 void ieee80211_set_wmm_default(struct ieee80211_link_data *link,
2228 bool bss_notify, bool enable_qos);
2229 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
2230 struct sta_info *sta, struct sk_buff *skb);
2232 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2233 struct sk_buff *skb, int tid, int link_id,
2234 enum nl80211_band band);
2236 /* sta_out needs to be checked for ERR_PTR() before using */
2237 int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
2238 struct sk_buff *skb,
2239 struct sta_info **sta_out);
2242 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2243 struct sk_buff *skb, int tid,
2244 enum nl80211_band band)
2247 __ieee80211_tx_skb_tid_band(sdata, skb, tid, -1, band);
2251 void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
2252 struct sk_buff *skb, int tid, int link_id);
2254 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
2255 struct sk_buff *skb)
2257 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
2258 ieee80211_tx_skb_tid(sdata, skb, 7, -1);
2262 * struct ieee80211_elems_parse_params - element parsing parameters
2263 * @start: pointer to the elements
2264 * @len: length of the elements
2265 * @action: %true if the elements came from an action frame
2266 * @filter: bitmap of element IDs to filter out while calculating
2268 * @crc: CRC starting value
2269 * @bss: the BSS to parse this as, for multi-BSSID cases this can
2270 * represent a non-transmitting BSS in which case the data
2271 * for that non-transmitting BSS is returned
2272 * @link_id: the link ID to parse elements for, if a STA profile
2273 * is present in the multi-link element, or -1 to ignore;
2274 * note that the code currently assumes parsing an association
2275 * (or re-association) response frame if this is given
2276 * @from_ap: frame is received from an AP (currently used only
2277 * for EHT capabilities parsing)
2279 struct ieee80211_elems_parse_params {
2285 struct cfg80211_bss *bss;
2290 struct ieee802_11_elems *
2291 ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params);
2293 static inline struct ieee802_11_elems *
2294 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
2295 u64 filter, u32 crc,
2296 struct cfg80211_bss *bss)
2298 struct ieee80211_elems_parse_params params = {
2308 return ieee802_11_parse_elems_full(¶ms);
2311 static inline struct ieee802_11_elems *
2312 ieee802_11_parse_elems(const u8 *start, size_t len, bool action,
2313 struct cfg80211_bss *bss)
2315 return ieee802_11_parse_elems_crc(start, len, action, 0, 0, bss);
2318 void ieee80211_fragment_element(struct sk_buff *skb, u8 *len_pos);
2320 extern const int ieee802_1d_to_ac[8];
2322 static inline int ieee80211_ac_from_tid(int tid)
2324 return ieee802_1d_to_ac[tid & 7];
2327 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
2328 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
2329 void ieee80211_dynamic_ps_timer(struct timer_list *t);
2330 void ieee80211_send_nullfunc(struct ieee80211_local *local,
2331 struct ieee80211_sub_if_data *sdata,
2333 void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local,
2334 struct ieee80211_sub_if_data *sdata);
2335 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
2336 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
2338 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
2339 unsigned long queues,
2340 enum queue_stop_reason reason,
2342 void ieee80211_stop_vif_queues(struct ieee80211_local *local,
2343 struct ieee80211_sub_if_data *sdata,
2344 enum queue_stop_reason reason);
2345 void ieee80211_wake_vif_queues(struct ieee80211_local *local,
2346 struct ieee80211_sub_if_data *sdata,
2347 enum queue_stop_reason reason);
2348 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
2349 unsigned long queues,
2350 enum queue_stop_reason reason,
2352 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
2353 enum queue_stop_reason reason,
2355 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
2356 enum queue_stop_reason reason,
2358 void ieee80211_add_pending_skb(struct ieee80211_local *local,
2359 struct sk_buff *skb);
2360 void ieee80211_add_pending_skbs(struct ieee80211_local *local,
2361 struct sk_buff_head *skbs);
2362 void ieee80211_flush_queues(struct ieee80211_local *local,
2363 struct ieee80211_sub_if_data *sdata, bool drop);
2364 void __ieee80211_flush_queues(struct ieee80211_local *local,
2365 struct ieee80211_sub_if_data *sdata,
2366 unsigned int queues, bool drop);
2368 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
2371 * It's unsafe to try to do any work during reconfigure flow.
2372 * When the flow ends the work will be requeued.
2374 if (local->in_reconfig)
2378 * If quiescing is set, we are racing with __ieee80211_suspend.
2379 * __ieee80211_suspend flushes the workers after setting quiescing,
2380 * and we check quiescing / suspended before enqueing new workers.
2381 * We should abort the worker to avoid the races below.
2383 if (local->quiescing)
2387 * We might already be suspended if the following scenario occurs:
2388 * __ieee80211_suspend Control path
2390 * if (local->quiescing)
2392 * local->quiescing = true;
2393 * flush_workqueue();
2395 * local->suspended = true;
2396 * local->quiescing = false;
2397 * worker starts running...
2399 if (local->suspended)
2405 int ieee80211_txq_setup_flows(struct ieee80211_local *local);
2406 void ieee80211_txq_set_params(struct ieee80211_local *local);
2407 void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
2408 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
2409 struct sta_info *sta,
2410 struct txq_info *txq, int tid);
2411 void ieee80211_txq_purge(struct ieee80211_local *local,
2412 struct txq_info *txqi);
2413 void ieee80211_txq_remove_vlan(struct ieee80211_local *local,
2414 struct ieee80211_sub_if_data *sdata);
2415 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
2416 struct txq_info *txqi);
2417 void ieee80211_wake_txqs(struct tasklet_struct *t);
2418 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
2419 u16 transaction, u16 auth_alg, u16 status,
2420 const u8 *extra, size_t extra_len, const u8 *bssid,
2421 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
2423 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
2424 const u8 *da, const u8 *bssid,
2425 u16 stype, u16 reason,
2426 bool send_frame, u8 *frame_buf);
2429 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0),
2430 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1),
2431 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2),
2434 int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer,
2436 struct ieee80211_scan_ies *ie_desc,
2437 const u8 *ie, size_t ie_len,
2438 u8 bands_used, u32 *rate_masks,
2439 struct cfg80211_chan_def *chandef,
2441 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
2442 const u8 *src, const u8 *dst,
2444 struct ieee80211_channel *chan,
2445 const u8 *ssid, size_t ssid_len,
2446 const u8 *ie, size_t ie_len,
2448 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
2449 struct ieee802_11_elems *elems,
2450 enum nl80211_band band, u32 *basic_rates);
2451 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2452 struct ieee80211_link_data *link,
2453 enum ieee80211_smps_mode smps_mode);
2454 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata,
2455 struct ieee80211_link_data *link);
2456 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata,
2459 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
2460 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2462 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2463 const struct cfg80211_chan_def *chandef,
2464 u16 prot_mode, bool rifs_mode);
2465 void ieee80211_ie_build_wide_bw_cs(u8 *pos,
2466 const struct cfg80211_chan_def *chandef);
2467 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2469 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2470 const struct cfg80211_chan_def *chandef);
2471 u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype);
2472 u8 *ieee80211_ie_build_he_cap(ieee80211_conn_flags_t disable_flags, u8 *pos,
2473 const struct ieee80211_sta_he_cap *he_cap,
2475 void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data *sdata,
2476 enum ieee80211_smps_mode smps_mode,
2477 struct sk_buff *skb);
2478 u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef);
2479 u8 *ieee80211_ie_build_eht_oper(u8 *pos, struct cfg80211_chan_def *chandef,
2480 const struct ieee80211_sta_eht_cap *eht_cap);
2481 int ieee80211_parse_bitrates(enum nl80211_chan_width width,
2482 const struct ieee80211_supported_band *sband,
2483 const u8 *srates, int srates_len, u32 *rates);
2484 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
2485 struct sk_buff *skb, bool need_basic,
2486 enum nl80211_band band);
2487 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
2488 struct sk_buff *skb, bool need_basic,
2489 enum nl80211_band band);
2490 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
2491 void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata,
2492 struct ieee80211_sta_s1g_cap *caps,
2493 struct sk_buff *skb);
2494 void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata,
2495 struct sk_buff *skb);
2496 u8 *ieee80211_ie_build_s1g_cap(u8 *pos, struct ieee80211_sta_s1g_cap *s1g_cap);
2498 /* channel management */
2499 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2500 struct cfg80211_chan_def *chandef);
2501 bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
2502 const struct ieee80211_vht_operation *oper,
2503 const struct ieee80211_ht_operation *htop,
2504 struct cfg80211_chan_def *chandef);
2505 void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation *eht_oper,
2506 bool support_160, bool support_320,
2507 struct cfg80211_chan_def *chandef);
2508 bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
2509 const struct ieee80211_he_operation *he_oper,
2510 const struct ieee80211_eht_operation *eht_oper,
2511 struct cfg80211_chan_def *chandef);
2512 bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper,
2513 struct cfg80211_chan_def *chandef);
2514 ieee80211_conn_flags_t ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
2517 ieee80211_link_use_channel(struct ieee80211_link_data *link,
2518 const struct cfg80211_chan_def *chandef,
2519 enum ieee80211_chanctx_mode mode);
2521 ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link,
2522 const struct cfg80211_chan_def *chandef,
2523 enum ieee80211_chanctx_mode mode,
2524 bool radar_required);
2526 ieee80211_link_use_reserved_context(struct ieee80211_link_data *link);
2527 int ieee80211_link_unreserve_chanctx(struct ieee80211_link_data *link);
2530 ieee80211_link_change_bandwidth(struct ieee80211_link_data *link,
2531 const struct cfg80211_chan_def *chandef,
2533 void ieee80211_link_release_channel(struct ieee80211_link_data *link);
2534 void ieee80211_link_vlan_copy_chanctx(struct ieee80211_link_data *link);
2535 void ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link,
2537 int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2538 struct ieee80211_chanctx *ctx);
2540 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2541 struct ieee80211_chanctx *chanctx);
2542 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2543 struct ieee80211_chanctx *ctx,
2544 struct ieee80211_link_data *rsvd_for);
2545 bool ieee80211_is_radar_required(struct ieee80211_local *local);
2547 void ieee80211_dfs_cac_timer(unsigned long data);
2548 void ieee80211_dfs_cac_timer_work(struct work_struct *work);
2549 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2550 void ieee80211_dfs_radar_detected_work(struct work_struct *work);
2551 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2552 struct cfg80211_csa_settings *csa_settings);
2554 void ieee80211_recalc_dtim(struct ieee80211_local *local,
2555 struct ieee80211_sub_if_data *sdata);
2556 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2557 const struct cfg80211_chan_def *chandef,
2558 enum ieee80211_chanctx_mode chanmode,
2560 int ieee80211_max_num_channels(struct ieee80211_local *local);
2561 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2562 struct ieee80211_chanctx *ctx);
2565 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2566 const u8 *peer, u8 action_code, u8 dialog_token,
2567 u16 status_code, u32 peer_capability,
2568 bool initiator, const u8 *extra_ies,
2569 size_t extra_ies_len);
2570 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2571 const u8 *peer, enum nl80211_tdls_operation oper);
2572 void ieee80211_tdls_peer_del_work(struct work_struct *wk);
2573 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2574 const u8 *addr, u8 oper_class,
2575 struct cfg80211_chan_def *chandef);
2576 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2577 struct net_device *dev,
2579 void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
2580 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
2581 const u8 *peer, u16 reason);
2583 ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata,
2584 struct sk_buff *skb);
2587 const char *ieee80211_get_reason_code_string(u16 reason_code);
2588 u16 ieee80211_encode_usf(int val);
2589 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
2590 enum nl80211_iftype type);
2592 extern const struct ethtool_ops ieee80211_ethtool_ops;
2594 u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw,
2595 struct ieee80211_vif *vif,
2596 struct ieee80211_sta *pubsta,
2597 int len, bool ampdu);
2598 #ifdef CONFIG_MAC80211_NOINLINE
2599 #define debug_noinline noinline
2601 #define debug_noinline
2604 void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache);
2605 void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache);
2607 u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata, u8 iftype);
2608 u8 *ieee80211_ie_build_eht_cap(u8 *pos,
2609 const struct ieee80211_sta_he_cap *he_cap,
2610 const struct ieee80211_sta_eht_cap *eht_cap,
2615 ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata,
2616 struct ieee80211_supported_band *sband,
2617 const u8 *he_cap_ie, u8 he_cap_len,
2618 const struct ieee80211_eht_cap_elem *eht_cap_ie_elem,
2620 struct link_sta_info *link_sta);
2621 #endif /* IEEE80211_I_H */