1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright 2002-2005, Instant802 Networks, Inc.
4 * Copyright 2005, Devicescape Software, Inc.
5 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
6 * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net>
7 * Copyright 2013-2015 Intel Mobile Communications GmbH
8 * Copyright (C) 2018-2021 Intel Corporation
14 #include <linux/kernel.h>
15 #include <linux/device.h>
16 #include <linux/if_ether.h>
17 #include <linux/interrupt.h>
18 #include <linux/list.h>
19 #include <linux/netdevice.h>
20 #include <linux/skbuff.h>
21 #include <linux/workqueue.h>
22 #include <linux/types.h>
23 #include <linux/spinlock.h>
24 #include <linux/etherdevice.h>
25 #include <linux/leds.h>
26 #include <linux/idr.h>
27 #include <linux/rhashtable.h>
28 #include <linux/rbtree.h>
29 #include <net/ieee80211_radiotap.h>
30 #include <net/cfg80211.h>
31 #include <net/mac80211.h>
37 extern const struct cfg80211_ops mac80211_config_ops;
39 struct ieee80211_local;
41 /* Maximum number of broadcast/multicast frames to buffer when some of the
42 * associated stations are using power saving. */
43 #define AP_MAX_BC_BUFFER 128
45 /* Maximum number of frames buffered to all STAs, including multicast frames.
46 * Note: increasing this limit increases the potential memory requirement. Each
47 * frame can be up to about 2 kB long. */
48 #define TOTAL_MAX_TX_BUFFER 512
50 /* Required encryption head and tailroom */
51 #define IEEE80211_ENCRYPT_HEADROOM 8
52 #define IEEE80211_ENCRYPT_TAILROOM 18
54 /* power level hasn't been configured (or set to automatic) */
55 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN
58 * Some APs experience problems when working with U-APSD. Decreasing the
59 * probability of that happening by using legacy mode for all ACs but VO isn't
62 * Cisco 4410N originally forced us to enable VO by default only because it
63 * treated non-VO ACs as legacy.
65 * However some APs (notably Netgear R7000) silently reclassify packets to
66 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval
67 * clients would never see some frames (e.g. ARP responses) or would fetch them
68 * accidentally after a long time.
70 * It makes little sense to enable u-APSD queues by default because it needs
71 * userspace applications to be aware of it to actually take advantage of the
72 * possible additional powersavings. Implicitly depending on driver autotrigger
73 * frame support doesn't make much sense.
75 #define IEEE80211_DEFAULT_UAPSD_QUEUES 0
77 #define IEEE80211_DEFAULT_MAX_SP_LEN \
78 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
80 extern const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS];
82 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
84 #define IEEE80211_MAX_NAN_INSTANCE_ID 255
86 struct ieee80211_bss {
87 u32 device_ts_beacon, device_ts_presp;
92 #define IEEE80211_MAX_SUPP_RATES 32
93 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
94 size_t supp_rates_len;
95 struct ieee80211_rate *beacon_rate;
100 * During association, we save an ERP value from a probe response so
101 * that we can feed ERP info to the driver when handling the
102 * association completes. these fields probably won't be up-to-date
103 * otherwise, you probably don't want to use them.
108 /* Keep track of the corruption of the last beacon/probe response. */
111 /* Keep track of what bits of information we have valid info for. */
116 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
117 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
118 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
120 * These are bss flags that are attached to a bss in the
121 * @corrupt_data field of &struct ieee80211_bss.
123 enum ieee80211_bss_corrupt_data_flags {
124 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
125 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
129 * enum ieee80211_valid_data_flags - BSS valid data flags
130 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
131 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
132 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
134 * These are bss flags that are attached to a bss in the
135 * @valid_data field of &struct ieee80211_bss. They show which parts
136 * of the data structure were received as a result of an un-corrupted
137 * beacon/probe response.
139 enum ieee80211_bss_valid_data_flags {
140 IEEE80211_BSS_VALID_WMM = BIT(1),
141 IEEE80211_BSS_VALID_RATES = BIT(2),
142 IEEE80211_BSS_VALID_ERP = BIT(3)
145 typedef unsigned __bitwise ieee80211_tx_result;
146 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
147 #define TX_DROP ((__force ieee80211_tx_result) 1u)
148 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
150 #define IEEE80211_TX_UNICAST BIT(1)
151 #define IEEE80211_TX_PS_BUFFERED BIT(2)
153 struct ieee80211_tx_data {
155 struct sk_buff_head skbs;
156 struct ieee80211_local *local;
157 struct ieee80211_sub_if_data *sdata;
158 struct sta_info *sta;
159 struct ieee80211_key *key;
160 struct ieee80211_tx_rate rate;
166 typedef unsigned __bitwise ieee80211_rx_result;
167 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
168 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
169 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
170 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
173 * enum ieee80211_packet_rx_flags - packet RX flags
174 * @IEEE80211_RX_AMSDU: a-MSDU packet
175 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
176 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
178 * These are per-frame flags that are attached to a frame in the
179 * @rx_flags field of &struct ieee80211_rx_status.
181 enum ieee80211_packet_rx_flags {
182 IEEE80211_RX_AMSDU = BIT(3),
183 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
184 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
188 * enum ieee80211_rx_flags - RX data flags
190 * @IEEE80211_RX_CMNTR: received on cooked monitor already
191 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
192 * to cfg80211_report_obss_beacon().
194 * These flags are used across handling multiple interfaces
195 * for a single frame.
197 enum ieee80211_rx_flags {
198 IEEE80211_RX_CMNTR = BIT(0),
199 IEEE80211_RX_BEACON_REPORTED = BIT(1),
202 struct ieee80211_rx_data {
203 struct list_head *list;
205 struct ieee80211_local *local;
206 struct ieee80211_sub_if_data *sdata;
207 struct sta_info *sta;
208 struct ieee80211_key *key;
213 * Index into sequence numbers array, 0..16
214 * since the last (16) is used for non-QoS,
215 * will be 16 on non-QoS frames.
220 * Index into the security IV/PN arrays, 0..16
221 * since the last (16) is used for CCMP-encrypted
222 * management frames, will be set to 16 on mgmt
223 * frames and 0 on non-QoS frames.
233 u8 pn[IEEE80211_CCMP_PN_LEN];
238 struct ieee80211_csa_settings {
239 const u16 *counter_offsets_beacon;
240 const u16 *counter_offsets_presp;
242 int n_counter_offsets_beacon;
243 int n_counter_offsets_presp;
248 struct ieee80211_color_change_settings {
249 u16 counter_offset_beacon;
250 u16 counter_offset_presp;
256 int head_len, tail_len;
257 struct ieee80211_meshconf_ie *meshconf;
258 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
259 u8 cntdwn_current_counter;
260 struct cfg80211_mbssid_elems *mbssid_ies;
261 struct rcu_head rcu_head;
265 struct rcu_head rcu_head;
267 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
271 struct fils_discovery_data {
272 struct rcu_head rcu_head;
277 struct unsol_bcast_probe_resp_data {
278 struct rcu_head rcu_head;
284 /* yes, this looks ugly, but guarantees that we can later use
286 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
287 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
288 __aligned(__alignof__(unsigned long));
289 struct sk_buff_head bc_buf;
290 atomic_t num_sta_ps; /* number of stations in PS mode */
295 struct ieee80211_if_ap {
296 struct beacon_data __rcu *beacon;
297 struct probe_resp __rcu *probe_resp;
298 struct fils_discovery_data __rcu *fils_discovery;
299 struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp;
301 /* to be used after channel switch. */
302 struct cfg80211_beacon_data *next_beacon;
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;
311 struct ieee80211_if_vlan {
312 struct list_head list; /* write-protected with RTNL and local->mtx */
314 /* used for all tx if the VLAN is configured to 4-addr mode */
315 struct sta_info __rcu *sta;
316 atomic_t num_mcast_sta; /* number of stations receiving multicast */
320 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
321 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
322 __u32 fwded_frames; /* Mesh total forwarded frames */
323 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
324 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
325 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
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_DISABLE_HT = BIT(4),
359 IEEE80211_STA_MFP_ENABLED = BIT(6),
360 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
361 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
362 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
363 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
364 IEEE80211_STA_DISABLE_VHT = BIT(11),
365 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
366 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
367 IEEE80211_STA_DISABLE_WMM = BIT(14),
368 IEEE80211_STA_ENABLE_RRM = BIT(15),
369 IEEE80211_STA_DISABLE_HE = BIT(16),
370 IEEE80211_STA_DISABLE_EHT = BIT(17),
371 IEEE80211_STA_DISABLE_320MHZ = BIT(18),
374 struct ieee80211_mgd_auth_data {
375 struct cfg80211_bss *bss;
376 unsigned long timeout;
378 u16 algorithm, expected_transaction;
380 u8 key[WLAN_KEY_LEN_WEP104];
384 bool timeout_started;
386 u16 sae_trans, sae_status;
391 struct ieee80211_mgd_assoc_data {
392 struct cfg80211_bss *bss;
393 const u8 *supp_rates;
395 unsigned long timeout;
399 u8 prev_bssid[ETH_ALEN];
400 u8 ssid[IEEE80211_MAX_SSID_LEN];
406 bool timeout_started;
410 struct ieee80211_vht_cap ap_vht_cap;
412 u8 fils_nonces[2 * FILS_NONCE_LEN];
413 u8 fils_kek[FILS_MAX_KEK_LEN];
420 struct ieee80211_sta_tx_tspec {
421 /* timestamp of the first packet in the time slice */
422 unsigned long time_slice_start;
424 u32 admitted_time; /* in usecs, unlike over the air */
426 s8 up; /* signed to be able to invalidate with -1 during teardown */
428 /* consumed TX time in microseconds in the time slice */
429 u32 consumed_tx_time;
431 TX_TSPEC_ACTION_NONE = 0,
432 TX_TSPEC_ACTION_DOWNGRADE,
433 TX_TSPEC_ACTION_STOP_DOWNGRADE,
438 DECLARE_EWMA(beacon_signal, 4, 4)
440 struct ieee80211_if_managed {
441 struct timer_list timer;
442 struct timer_list conn_mon_timer;
443 struct timer_list bcn_mon_timer;
444 struct timer_list chswitch_timer;
445 struct work_struct monitor_work;
446 struct work_struct chswitch_work;
447 struct work_struct beacon_connection_loss_work;
448 struct work_struct csa_connection_drop_work;
450 unsigned long beacon_timeout;
451 unsigned long probe_timeout;
452 int probe_send_count;
453 bool nullfunc_failed;
454 u8 connection_loss:1,
458 struct cfg80211_bss *associated;
459 struct ieee80211_mgd_auth_data *auth_data;
460 struct ieee80211_mgd_assoc_data *assoc_data;
462 u8 bssid[ETH_ALEN] __aligned(2);
464 bool powersave; /* powersave requested for this iface */
465 bool broken_ap; /* AP is broken -- turn off powersave */
468 enum ieee80211_smps_mode req_smps, /* requested smps mode */
469 driver_smps_mode; /* smps mode request */
471 struct work_struct request_smps_work;
475 bool csa_waiting_bcn;
476 bool csa_ignored_same_chan;
478 bool beacon_crc_valid;
482 bool status_received;
486 IEEE80211_MFP_DISABLED,
487 IEEE80211_MFP_OPTIONAL,
488 IEEE80211_MFP_REQUIRED
489 } mfp; /* management frame protection */
492 * Bitmask of enabled u-apsd queues,
493 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
496 unsigned int uapsd_queues;
499 * Maximum number of buffered frames AP can deliver during a
500 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
501 * Needs a new association to take effect.
503 unsigned int uapsd_max_sp_len;
505 int wmm_last_param_set;
506 int mu_edca_last_param_set;
512 struct ewma_beacon_signal ave_beacon_signal;
515 * Number of Beacon frames used in ave_beacon_signal. This can be used
516 * to avoid generating less reliable cqm events that would be based
517 * only on couple of received frames.
519 unsigned int count_beacon_signal;
521 /* Number of times beacon loss was invoked. */
522 unsigned int beacon_loss_count;
525 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
526 * that triggered a cqm event. 0 indicates that no event has been
527 * generated for the current association.
529 int last_cqm_event_signal;
532 * State variables for keeping track of RSSI of the AP currently
533 * connected to and informing driver when RSSI has gone
534 * below/above a certain threshold.
536 int rssi_min_thold, rssi_max_thold;
537 int last_ave_beacon_signal;
539 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
540 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
541 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
542 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
543 struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */
544 struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */
547 u8 tdls_peer[ETH_ALEN] __aligned(2);
548 struct delayed_work tdls_peer_del_work;
549 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
550 struct sk_buff *teardown_skb; /* A copy to send through the AP */
551 spinlock_t teardown_lock; /* To lock changing teardown_skb */
552 bool tdls_chan_switch_prohibited;
553 bool tdls_wider_bw_prohibited;
555 /* WMM-AC TSPEC support */
556 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
557 /* Use a separate work struct so that we can do something here
558 * while the sdata->work is flushing the queues, for example.
559 * otherwise, in scenarios where we hardly get any traffic out
560 * on the BE queue, but there's a lot of VO traffic, we might
561 * get stuck in a downgraded situation and flush takes forever.
563 struct delayed_work tx_tspec_wk;
565 /* Information elements from the last transmitted (Re)Association
569 size_t assoc_req_ies_len;
572 struct ieee80211_if_ibss {
573 struct timer_list timer;
574 struct work_struct csa_connection_drop_work;
576 unsigned long last_scan_completed;
585 bool userspace_handles_dfs;
587 u8 bssid[ETH_ALEN] __aligned(2);
588 u8 ssid[IEEE80211_MAX_SSID_LEN];
591 struct cfg80211_chan_def chandef;
593 unsigned long ibss_join_req;
594 /* probe response/beacon for IBSS */
595 struct beacon_data __rcu *presp;
597 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
598 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
600 spinlock_t incomplete_lock;
601 struct list_head incomplete_stations;
604 IEEE80211_IBSS_MLME_SEARCH,
605 IEEE80211_IBSS_MLME_JOINED,
610 * struct ieee80211_if_ocb - OCB mode state
612 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
613 * @wrkq_flags: OCB deferred task action
614 * @incomplete_lock: delayed STA insertion lock
615 * @incomplete_stations: list of STAs waiting for delayed insertion
616 * @joined: indication if the interface is connected to an OCB network
618 struct ieee80211_if_ocb {
619 struct timer_list housekeeping_timer;
620 unsigned long wrkq_flags;
622 spinlock_t incomplete_lock;
623 struct list_head incomplete_stations;
629 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
631 * these declarations define the interface, which enables
632 * vendor-specific mesh synchronization
635 struct ieee802_11_elems;
636 struct ieee80211_mesh_sync_ops {
637 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, u16 stype,
638 struct ieee80211_mgmt *mgmt, unsigned int len,
639 const struct ieee80211_meshconf_ie *mesh_cfg,
640 struct ieee80211_rx_status *rx_status);
642 /* should be called with beacon_data under RCU read lock */
643 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata,
644 struct beacon_data *beacon);
645 /* add other framework functions here */
648 struct mesh_csa_settings {
649 struct rcu_head rcu_head;
650 struct cfg80211_csa_settings settings;
656 * @known_gates: list of known mesh gates and their mpaths by the station. The
657 * gate's mpath may or may not be resolved and active.
658 * @gates_lock: protects updates to known_gates
659 * @rhead: the rhashtable containing struct mesh_paths, keyed by dest addr
660 * @walk_head: linked list containing all mesh_path objects
661 * @walk_lock: lock protecting walk_head
662 * @entries: number of entries in the table
665 struct hlist_head known_gates;
666 spinlock_t gates_lock;
667 struct rhashtable rhead;
668 struct hlist_head walk_head;
669 spinlock_t walk_lock;
670 atomic_t entries; /* Up to MAX_MESH_NEIGHBOURS */
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;
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;
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;
753 #ifdef CONFIG_MAC80211_MESH
754 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
755 do { (msh)->mshstats.name++; } while (0)
757 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
762 * enum ieee80211_sub_if_data_flags - virtual interface flags
764 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
765 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
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_OPERATING_GMODE = BIT(2),
777 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
778 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
779 IEEE80211_SDATA_IN_DRIVER = BIT(5),
780 IEEE80211_SDATA_DISCONNECT_HW_RESTART = BIT(6),
784 * enum ieee80211_sdata_state_bits - virtual interface state bits
785 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
786 * mirrors netif_running() but is separate for interface type
787 * change handling while the interface is up
788 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
789 * mode, so queues are stopped
790 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
791 * to offchannel, reset when offchannel returns
793 enum ieee80211_sdata_state_bits {
795 SDATA_STATE_OFFCHANNEL,
796 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
800 * enum ieee80211_chanctx_mode - channel context configuration mode
802 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
803 * multiple interfaces
804 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
805 * only by a single interface. This can be used for example for
806 * non-fixed channel IBSS.
808 enum ieee80211_chanctx_mode {
809 IEEE80211_CHANCTX_SHARED,
810 IEEE80211_CHANCTX_EXCLUSIVE
814 * enum ieee80211_chanctx_replace_state - channel context replacement state
816 * This is used for channel context in-place reservations that require channel
817 * context switch/swap.
819 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
820 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
821 * by a (not yet registered) channel context pointed by %replace_ctx.
822 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
823 * replaces an existing channel context pointed to by %replace_ctx.
825 enum ieee80211_chanctx_replace_state {
826 IEEE80211_CHANCTX_REPLACE_NONE,
827 IEEE80211_CHANCTX_WILL_BE_REPLACED,
828 IEEE80211_CHANCTX_REPLACES_OTHER,
831 struct ieee80211_chanctx {
832 struct list_head list;
833 struct rcu_head rcu_head;
835 struct list_head assigned_vifs;
836 struct list_head reserved_vifs;
838 enum ieee80211_chanctx_replace_state replace_state;
839 struct ieee80211_chanctx *replace_ctx;
841 enum ieee80211_chanctx_mode mode;
844 struct ieee80211_chanctx_conf conf;
847 struct mac80211_qos_map {
848 struct cfg80211_qos_map qos_map;
849 struct rcu_head rcu_head;
852 enum txq_info_flags {
855 IEEE80211_TXQ_NO_AMSDU,
856 IEEE80211_TXQ_STOP_NETIF_TX,
860 * struct txq_info - per tid queue
862 * @tin: contains packets split into multiple flows
863 * @def_flow: used as a fallback flow when a packet destined to @tin hashes to
864 * a fq_flow which is already owned by a different tin
865 * @def_cvars: codel vars for @def_flow
866 * @schedule_order: used with ieee80211_local->active_txqs
867 * @frags: used to keep fragments created after dequeue
871 struct codel_vars def_cvars;
872 struct codel_stats cstats;
873 struct rb_node schedule_order;
875 struct sk_buff_head frags;
879 struct ieee80211_txq txq;
882 struct ieee80211_if_mntr {
884 u8 mu_follow_addr[ETH_ALEN] __aligned(2);
886 struct list_head list;
890 * struct ieee80211_if_nan - NAN state
892 * @conf: current NAN configuration
893 * @func_ids: a bitmap of available instance_id's
895 struct ieee80211_if_nan {
896 struct cfg80211_nan_conf conf;
898 /* protects function_inst_ids */
899 spinlock_t func_lock;
900 struct idr function_inst_ids;
903 struct ieee80211_sub_if_data {
904 struct list_head list;
906 struct wireless_dev wdev;
909 struct list_head key_list;
911 /* count for keys needing tailroom space allocation */
912 int crypto_tx_tailroom_needed_cnt;
913 int crypto_tx_tailroom_pending_dec;
914 struct delayed_work dec_tailroom_needed_wk;
916 struct net_device *dev;
917 struct ieee80211_local *local;
925 struct ieee80211_fragment_cache frags;
927 /* TID bitmap for NoAck policy */
930 /* bit field of ACM bits (BIT(802.1D tag)) */
933 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS +
934 NUM_DEFAULT_MGMT_KEYS +
935 NUM_DEFAULT_BEACON_KEYS];
936 struct ieee80211_key __rcu *default_unicast_key;
937 struct ieee80211_key __rcu *default_multicast_key;
938 struct ieee80211_key __rcu *default_mgmt_key;
939 struct ieee80211_key __rcu *default_beacon_key;
942 __be16 control_port_protocol;
943 bool control_port_no_encrypt;
944 bool control_port_no_preauth;
945 bool control_port_over_nl80211;
946 int encrypt_headroom;
948 atomic_t num_tx_queued;
949 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
950 struct mac80211_qos_map __rcu *qos_map;
952 struct airtime_info airtime[IEEE80211_NUM_ACS];
954 struct work_struct csa_finalize_work;
955 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
956 struct cfg80211_chan_def csa_chandef;
958 struct work_struct color_change_finalize_work;
960 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
961 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
963 /* context reservation -- protected with chanctx_mtx */
964 struct ieee80211_chanctx *reserved_chanctx;
965 struct cfg80211_chan_def reserved_chandef;
966 bool reserved_radar_required;
969 /* used to reconfigure hardware SM PS */
970 struct work_struct recalc_smps;
972 struct work_struct work;
973 struct sk_buff_head skb_queue;
974 struct sk_buff_head status_queue;
977 enum ieee80211_smps_mode smps_mode;
979 int user_power_level; /* in dBm */
980 int ap_power_level; /* in dBm */
983 struct delayed_work dfs_cac_timer_work;
986 * AP this belongs to: self in AP mode and
987 * corresponding AP in VLAN mode, NULL for
988 * all others (might be needed later in IBSS)
990 struct ieee80211_if_ap *bss;
992 /* bitmap of allowed (non-MCS) rate indexes for rate control */
993 u32 rc_rateidx_mask[NUM_NL80211_BANDS];
995 bool rc_has_mcs_mask[NUM_NL80211_BANDS];
996 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
998 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
999 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
1001 /* Beacon frame (non-MCS) rate (as a bitmap) */
1002 u32 beacon_rateidx_mask[NUM_NL80211_BANDS];
1003 bool beacon_rate_set;
1006 struct ieee80211_if_ap ap;
1007 struct ieee80211_if_vlan vlan;
1008 struct ieee80211_if_managed mgd;
1009 struct ieee80211_if_ibss ibss;
1010 struct ieee80211_if_mesh mesh;
1011 struct ieee80211_if_ocb ocb;
1012 struct ieee80211_if_mntr mntr;
1013 struct ieee80211_if_nan nan;
1016 #ifdef CONFIG_MAC80211_DEBUGFS
1018 struct dentry *subdir_stations;
1019 struct dentry *default_unicast_key;
1020 struct dentry *default_multicast_key;
1021 struct dentry *default_mgmt_key;
1022 struct dentry *default_beacon_key;
1026 /* must be last, dynamically sized area in this! */
1027 struct ieee80211_vif vif;
1031 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
1033 return container_of(p, struct ieee80211_sub_if_data, vif);
1036 static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
1037 __acquires(&sdata->wdev.mtx)
1039 mutex_lock(&sdata->wdev.mtx);
1040 __acquire(&sdata->wdev.mtx);
1043 static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
1044 __releases(&sdata->wdev.mtx)
1046 mutex_unlock(&sdata->wdev.mtx);
1047 __release(&sdata->wdev.mtx);
1050 #define sdata_dereference(p, sdata) \
1051 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
1054 sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
1056 lockdep_assert_held(&sdata->wdev.mtx);
1060 ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
1062 switch (chandef->width) {
1063 case NL80211_CHAN_WIDTH_5:
1065 case NL80211_CHAN_WIDTH_10:
1073 ieee80211_vif_get_shift(struct ieee80211_vif *vif)
1075 struct ieee80211_chanctx_conf *chanctx_conf;
1079 chanctx_conf = rcu_dereference(vif->chanctx_conf);
1081 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
1088 ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems *elems)
1095 for (i = 0; i < elems->cnt; i++)
1096 len += elems->elem[i].len;
1102 IEEE80211_RX_MSG = 1,
1103 IEEE80211_TX_STATUS_MSG = 2,
1106 enum queue_stop_reason {
1107 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1108 IEEE80211_QUEUE_STOP_REASON_PS,
1109 IEEE80211_QUEUE_STOP_REASON_CSA,
1110 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1111 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1112 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1113 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1114 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1115 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1116 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1117 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE,
1119 IEEE80211_QUEUE_STOP_REASONS,
1122 #ifdef CONFIG_MAC80211_LEDS
1123 struct tpt_led_trigger {
1125 const struct ieee80211_tpt_blink *blink_table;
1126 unsigned int blink_table_len;
1127 struct timer_list timer;
1128 struct ieee80211_local *local;
1129 unsigned long prev_traffic;
1130 unsigned long tx_bytes, rx_bytes;
1131 unsigned int active, want;
1137 * mac80211 scan flags - currently active scan mode
1139 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1140 * well be on the operating channel
1141 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1142 * determine if we are on the operating channel or not
1143 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1144 * channel. This should not interrupt normal traffic.
1145 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1146 * that the scan completed.
1147 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1148 * a scan complete for an aborted scan.
1149 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1155 SCAN_ONCHANNEL_SCANNING,
1162 * enum mac80211_scan_state - scan state machine states
1164 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1165 * determines if we should keep on scanning or switch back to the
1167 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1168 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1169 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1171 * @SCAN_RESUME: Resume the scan and scan the next channel
1172 * @SCAN_ABORT: Abort the scan and go back to operating channel
1174 enum mac80211_scan_state {
1184 * struct airtime_sched_info - state used for airtime scheduling and AQL
1186 * @lock: spinlock that protects all the fields in this struct
1187 * @active_txqs: rbtree of currently backlogged queues, sorted by virtual time
1188 * @schedule_pos: the current position maintained while a driver walks the tree
1189 * with ieee80211_next_txq()
1190 * @active_list: list of struct airtime_info structs that were active within
1191 * the last AIRTIME_ACTIVE_DURATION (100 ms), used to compute
1193 * @last_weight_update: used for rate limiting walking active_list
1194 * @last_schedule_time: tracks the last time a transmission was scheduled; used
1195 * for catching up v_t if no stations are eligible for
1197 * @v_t: global virtual time; queues with v_t < this are eligible for
1199 * @weight_sum: total sum of all active stations used for dividing airtime
1200 * @weight_sum_reciprocal: reciprocal of weight_sum (to avoid divisions in fast
1201 * path - see comment above
1202 * IEEE80211_RECIPROCAL_DIVISOR_64)
1203 * @aql_txq_limit_low: AQL limit when total outstanding airtime
1204 * is < IEEE80211_AQL_THRESHOLD
1205 * @aql_txq_limit_high: AQL limit when total outstanding airtime
1206 * is > IEEE80211_AQL_THRESHOLD
1208 struct airtime_sched_info {
1210 struct rb_root_cached active_txqs;
1211 struct rb_node *schedule_pos;
1212 struct list_head active_list;
1213 u64 last_weight_update;
1214 u64 last_schedule_activity;
1217 u64 weight_sum_reciprocal;
1218 u32 aql_txq_limit_low;
1219 u32 aql_txq_limit_high;
1221 DECLARE_STATIC_KEY_FALSE(aql_disable);
1223 struct ieee80211_local {
1224 /* embed the driver visible part.
1225 * don't cast (use the static inlines below), but we keep
1226 * it first anyway so they become a no-op */
1227 struct ieee80211_hw hw;
1230 struct codel_vars *cvars;
1231 struct codel_params cparams;
1233 /* protects active_txqs and txqi->schedule_order */
1234 struct airtime_sched_info airtime[IEEE80211_NUM_ACS];
1237 atomic_t aql_total_pending_airtime;
1239 const struct ieee80211_ops *ops;
1242 * private workqueue to mac80211. mac80211 makes this accessible
1243 * via ieee80211_queue_work()
1245 struct workqueue_struct *workqueue;
1247 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1248 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1249 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1250 spinlock_t queue_stop_reason_lock;
1253 int monitors, cooked_mntrs;
1254 /* number of interfaces with corresponding FIF_ flags */
1255 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1258 bool rx_mcast_action_reg;
1259 unsigned int filter_flags; /* FIF_* */
1261 bool wiphy_ciphers_allocated;
1265 /* protects the aggregated multicast list and filter calls */
1266 spinlock_t filter_lock;
1268 /* used for uploading changed mc list */
1269 struct work_struct reconfig_filter;
1271 /* aggregated multicast list */
1272 struct netdev_hw_addr_list mc_list;
1274 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1277 * suspended is true if we finished all the suspend _and_ we have
1278 * not yet come up from resume. This is to be used by mac80211
1279 * to ensure driver sanity during suspend and mac80211's own
1280 * sanity. It can eventually be used for WoW as well.
1284 /* suspending is true during the whole suspend process */
1288 * Resuming is true while suspended, but when we're reprogramming the
1289 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1290 * again even though some other parts of the stack are still suspended
1291 * and we still drop received frames to avoid waking the stack.
1296 * quiescing is true during the suspend process _only_ to
1297 * ease timer cancelling etc.
1301 /* device is started */
1304 /* device is during a HW reconfig */
1307 /* wowlan is enabled -- don't reconfig on resume */
1310 struct work_struct radar_detected_work;
1312 /* number of RX chains the hardware has */
1315 /* bitmap of which sbands were copied */
1318 int tx_headroom; /* required headroom for hardware/radiotap */
1320 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1321 * added to skb_queue will be processed, but frames in
1322 * skb_queue_unreliable may be dropped if the total length of these
1323 * queues increases over the limit. */
1324 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1325 struct tasklet_struct tasklet;
1326 struct sk_buff_head skb_queue;
1327 struct sk_buff_head skb_queue_unreliable;
1329 spinlock_t rx_path_lock;
1333 * The mutex only protects the list, hash table and
1334 * counter, reads are done with RCU.
1336 struct mutex sta_mtx;
1337 spinlock_t tim_lock;
1338 unsigned long num_sta;
1339 struct list_head sta_list;
1340 struct rhltable sta_hash;
1341 struct timer_list sta_cleanup;
1344 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1345 struct tasklet_struct tx_pending_tasklet;
1346 struct tasklet_struct wake_txqs_tasklet;
1348 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1350 /* number of interfaces with allmulti RX */
1351 atomic_t iff_allmultis;
1353 struct rate_control_ref *rate_ctrl;
1355 struct arc4_ctx wep_tx_ctx;
1356 struct arc4_ctx wep_rx_ctx;
1360 struct list_head interfaces;
1361 struct list_head mon_list; /* only that are IFF_UP && !cooked */
1362 struct mutex iflist_mtx;
1365 * Key mutex, protects sdata's key_list and sta_info's
1366 * key pointers and ptk_idx (write access, they're RCU.)
1368 struct mutex key_mtx;
1370 /* mutex for scan and work locking */
1373 /* Scanning and BSS list */
1374 unsigned long scanning;
1375 struct cfg80211_ssid scan_ssid;
1376 struct cfg80211_scan_request *int_scan_req;
1377 struct cfg80211_scan_request __rcu *scan_req;
1378 struct ieee80211_scan_request *hw_scan_req;
1379 struct cfg80211_chan_def scan_chandef;
1380 enum nl80211_band hw_scan_band;
1381 int scan_channel_idx;
1383 int hw_scan_ies_bufsize;
1384 struct cfg80211_scan_info scan_info;
1386 struct work_struct sched_scan_stopped_work;
1387 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1388 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1389 u8 scan_addr[ETH_ALEN];
1391 unsigned long leave_oper_channel_time;
1392 enum mac80211_scan_state next_scan_state;
1393 struct delayed_work scan_work;
1394 struct ieee80211_sub_if_data __rcu *scan_sdata;
1395 /* For backward compatibility only -- do not use */
1396 struct cfg80211_chan_def _oper_chandef;
1398 /* Temporary remain-on-channel for off-channel operations */
1399 struct ieee80211_channel *tmp_channel;
1401 /* channel contexts */
1402 struct list_head chanctx_list;
1403 struct mutex chanctx_mtx;
1405 #ifdef CONFIG_MAC80211_LEDS
1406 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1407 struct led_trigger tpt_led;
1408 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1409 atomic_t radio_led_active, tpt_led_active;
1410 struct tpt_led_trigger *tpt_led_trigger;
1413 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1415 /* dot11CountersTable */
1416 u32 dot11TransmittedFragmentCount;
1417 u32 dot11MulticastTransmittedFrameCount;
1418 u32 dot11FailedCount;
1419 u32 dot11RetryCount;
1420 u32 dot11MultipleRetryCount;
1421 u32 dot11FrameDuplicateCount;
1422 u32 dot11ReceivedFragmentCount;
1423 u32 dot11MulticastReceivedFrameCount;
1424 u32 dot11TransmittedFrameCount;
1426 /* TX/RX handler statistics */
1427 unsigned int tx_handlers_drop;
1428 unsigned int tx_handlers_queued;
1429 unsigned int tx_handlers_drop_wep;
1430 unsigned int tx_handlers_drop_not_assoc;
1431 unsigned int tx_handlers_drop_unauth_port;
1432 unsigned int rx_handlers_drop;
1433 unsigned int rx_handlers_queued;
1434 unsigned int rx_handlers_drop_nullfunc;
1435 unsigned int rx_handlers_drop_defrag;
1436 unsigned int tx_expand_skb_head;
1437 unsigned int tx_expand_skb_head_cloned;
1438 unsigned int rx_expand_skb_head_defrag;
1439 unsigned int rx_handlers_fragments;
1440 unsigned int tx_status_drop;
1441 #define I802_DEBUG_INC(c) (c)++
1442 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1443 #define I802_DEBUG_INC(c) do { } while (0)
1444 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1447 int total_ps_buffered; /* total number of all buffered unicast and
1448 * multicast packets for power saving stations
1453 * PS can only be enabled when we have exactly one managed
1454 * interface (and monitors) in PS, this then points there.
1456 struct ieee80211_sub_if_data *ps_sdata;
1457 struct work_struct dynamic_ps_enable_work;
1458 struct work_struct dynamic_ps_disable_work;
1459 struct timer_list dynamic_ps_timer;
1460 struct notifier_block ifa_notifier;
1461 struct notifier_block ifa6_notifier;
1464 * The dynamic ps timeout configured from user space via WEXT -
1465 * this will override whatever chosen by mac80211 internally.
1467 int dynamic_ps_forced_timeout;
1469 int user_power_level; /* in dBm, for all interfaces */
1471 enum ieee80211_smps_mode smps_mode;
1473 struct work_struct restart_work;
1475 #ifdef CONFIG_MAC80211_DEBUGFS
1476 struct local_debugfsdentries {
1477 struct dentry *rcdir;
1478 struct dentry *keys;
1480 bool force_tx_status;
1484 * Remain-on-channel support
1486 struct delayed_work roc_work;
1487 struct list_head roc_list;
1488 struct work_struct hw_roc_start, hw_roc_done;
1489 unsigned long hw_roc_start_time;
1490 u64 roc_cookie_counter;
1492 struct idr ack_status_frames;
1493 spinlock_t ack_status_lock;
1495 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1497 /* virtual monitor interface */
1498 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1499 struct cfg80211_chan_def monitor_chandef;
1501 /* extended capabilities provided by mac80211 */
1505 static inline struct ieee80211_sub_if_data *
1506 IEEE80211_DEV_TO_SUB_IF(const struct net_device *dev)
1508 return netdev_priv(dev);
1511 static inline struct ieee80211_sub_if_data *
1512 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1514 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1517 static inline struct ieee80211_supported_band *
1518 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata)
1520 struct ieee80211_local *local = sdata->local;
1521 struct ieee80211_chanctx_conf *chanctx_conf;
1522 enum nl80211_band band;
1525 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1527 if (!chanctx_conf) {
1532 band = chanctx_conf->def.chan->band;
1535 return local->hw.wiphy->bands[band];
1538 /* this struct holds the value parsing from channel switch IE */
1539 struct ieee80211_csa_ie {
1540 struct cfg80211_chan_def chandef;
1546 u32 max_switch_time;
1549 /* Parsed Information Elements */
1550 struct ieee802_11_elems {
1555 /* pointers to IEs */
1556 const struct ieee80211_tdls_lnkie *lnk_id;
1557 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1558 const u8 *ext_capab;
1560 const u8 *supp_rates;
1561 const u8 *ds_params;
1562 const struct ieee80211_tim_ie *tim;
1566 const u8 *ext_supp_rates;
1568 const u8 *wmm_param;
1569 const struct ieee80211_ht_cap *ht_cap_elem;
1570 const struct ieee80211_ht_operation *ht_operation;
1571 const struct ieee80211_vht_cap *vht_cap_elem;
1572 const struct ieee80211_vht_operation *vht_operation;
1573 const struct ieee80211_meshconf_ie *mesh_config;
1575 const struct ieee80211_he_operation *he_operation;
1576 const struct ieee80211_he_spr *he_spr;
1577 const struct ieee80211_mu_edca_param_set *mu_edca_param_set;
1578 const struct ieee80211_he_6ghz_capa *he_6ghz_capa;
1579 const struct ieee80211_tx_pwr_env *tx_pwr_env[IEEE80211_TPE_MAX_IE_COUNT];
1580 const u8 *uora_element;
1583 const __le16 *awake_window;
1587 const struct ieee80211_rann_ie *rann;
1588 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1589 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1590 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1591 const u8 *max_channel_switch_time;
1592 const u8 *country_elem;
1593 const u8 *pwr_constr_elem;
1594 const u8 *cisco_dtpc_elem;
1595 const struct ieee80211_timeout_interval_ie *timeout_int;
1596 const u8 *opmode_notif;
1597 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1598 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1599 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie;
1600 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie;
1601 const struct ieee80211_bssid_index *bssid_index;
1602 u8 max_bssid_indicator;
1605 const struct ieee80211_addba_ext_ie *addba_ext_ie;
1606 const struct ieee80211_s1g_cap *s1g_capab;
1607 const struct ieee80211_s1g_oper_ie *s1g_oper;
1608 const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat;
1609 const struct ieee80211_aid_response_ie *aid_resp;
1610 const struct ieee80211_eht_cap_elem *eht_cap;
1611 const struct ieee80211_eht_operation *eht_operation;
1613 /* length of them, respectively */
1620 u8 ext_supp_rates_len;
1629 u8 country_elem_len;
1631 u8 tx_pwr_env_len[IEEE80211_TPE_MAX_IE_COUNT];
1635 /* whether a parse error occurred while retrieving these elements */
1639 static inline struct ieee80211_local *hw_to_local(
1640 struct ieee80211_hw *hw)
1642 return container_of(hw, struct ieee80211_local, hw);
1645 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1647 return container_of(txq, struct txq_info, txq);
1650 static inline bool txq_has_queue(struct ieee80211_txq *txq)
1652 struct txq_info *txqi = to_txq_info(txq);
1654 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets);
1657 static inline struct airtime_info *to_airtime_info(struct ieee80211_txq *txq)
1659 struct ieee80211_sub_if_data *sdata;
1660 struct sta_info *sta;
1663 sta = container_of(txq->sta, struct sta_info, sta);
1664 return &sta->airtime[txq->ac];
1667 sdata = vif_to_sdata(txq->vif);
1668 return &sdata->airtime[txq->ac];
1671 /* To avoid divisions in the fast path, we keep pre-computed reciprocals for
1672 * airtime weight calculations. There are two different weights to keep track
1673 * of: The per-station weight and the sum of weights per phy.
1675 * For the per-station weights (kept in airtime_info below), we use 32-bit
1676 * reciprocals with a devisor of 2^19. This lets us keep the multiplications and
1677 * divisions for the station weights as 32-bit operations at the cost of a bit
1678 * of rounding error for high weights; but the choice of divisor keeps rounding
1679 * errors <10% for weights <2^15, assuming no more than 8ms of airtime is
1680 * reported at a time.
1682 * For the per-phy sum of weights the values can get higher, so we use 64-bit
1683 * operations for those with a 32-bit divisor, which should avoid any
1684 * significant rounding errors.
1686 #define IEEE80211_RECIPROCAL_DIVISOR_64 0x100000000ULL
1687 #define IEEE80211_RECIPROCAL_SHIFT_64 32
1688 #define IEEE80211_RECIPROCAL_DIVISOR_32 0x80000U
1689 #define IEEE80211_RECIPROCAL_SHIFT_32 19
1691 static inline void airtime_weight_set(struct airtime_info *air_info, u16 weight)
1693 if (air_info->weight == weight)
1696 air_info->weight = weight;
1698 air_info->weight_reciprocal =
1699 IEEE80211_RECIPROCAL_DIVISOR_32 / weight;
1701 air_info->weight_reciprocal = 0;
1705 static inline void airtime_weight_sum_set(struct airtime_sched_info *air_sched,
1708 if (air_sched->weight_sum == weight_sum)
1711 air_sched->weight_sum = weight_sum;
1712 if (air_sched->weight_sum) {
1713 air_sched->weight_sum_reciprocal = IEEE80211_RECIPROCAL_DIVISOR_64;
1714 do_div(air_sched->weight_sum_reciprocal, air_sched->weight_sum);
1716 air_sched->weight_sum_reciprocal = 0;
1720 /* A problem when trying to enforce airtime fairness is that we want to divide
1721 * the airtime between the currently *active* stations. However, basing this on
1722 * the instantaneous queue state of stations doesn't work, as queues tend to
1723 * oscillate very quickly between empty and occupied, leading to the scheduler
1724 * thinking only a single station is active when deciding whether to allow
1725 * transmission (and thus not throttling correctly).
1727 * To fix this we use a timer-based notion of activity: a station is considered
1728 * active if it has been scheduled within the last 100 ms; we keep a separate
1729 * list of all the stations considered active in this manner, and lazily update
1730 * the total weight of active stations from this list (filtering the stations in
1731 * the list by their 'last active' time).
1733 * We add one additional safeguard to guard against stations that manage to get
1734 * scheduled every 100 ms but don't transmit a lot of data, and thus don't use
1735 * up any airtime. Such stations would be able to get priority for an extended
1736 * period of time if they do start transmitting at full capacity again, and so
1737 * we add an explicit maximum for how far behind a station is allowed to fall in
1738 * the virtual airtime domain. This limit is set to a relatively high value of
1739 * 20 ms because the main mechanism for catching up idle stations is the active
1740 * state as described above; i.e., the hard limit should only be hit in
1741 * pathological cases.
1743 #define AIRTIME_ACTIVE_DURATION (100 * NSEC_PER_MSEC)
1744 #define AIRTIME_MAX_BEHIND 20000 /* 20 ms */
1746 static inline bool airtime_is_active(struct airtime_info *air_info, u64 now)
1748 return air_info->last_scheduled >= now - AIRTIME_ACTIVE_DURATION;
1751 static inline void airtime_set_active(struct airtime_sched_info *air_sched,
1752 struct airtime_info *air_info, u64 now)
1754 air_info->last_scheduled = now;
1755 air_sched->last_schedule_activity = now;
1756 list_move_tail(&air_info->list, &air_sched->active_list);
1759 static inline bool airtime_catchup_v_t(struct airtime_sched_info *air_sched,
1762 air_sched->v_t = v_t;
1766 static inline void init_airtime_info(struct airtime_info *air_info,
1767 struct airtime_sched_info *air_sched)
1769 atomic_set(&air_info->aql_tx_pending, 0);
1770 air_info->aql_limit_low = air_sched->aql_txq_limit_low;
1771 air_info->aql_limit_high = air_sched->aql_txq_limit_high;
1772 airtime_weight_set(air_info, IEEE80211_DEFAULT_AIRTIME_WEIGHT);
1773 INIT_LIST_HEAD(&air_info->list);
1776 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1778 return ether_addr_equal(raddr, addr) ||
1779 is_broadcast_ether_addr(raddr);
1783 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1785 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1786 status->flag & RX_FLAG_MACTIME_END);
1787 return !!(status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END |
1788 RX_FLAG_MACTIME_PLCP_START));
1791 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
1792 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
1794 /* This function returns the number of multicast stations connected to this
1795 * interface. It returns -1 if that number is not tracked, that is for netdevs
1796 * not in AP or AP_VLAN mode or when using 4addr.
1799 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
1801 if (sdata->vif.type == NL80211_IFTYPE_AP)
1802 return atomic_read(&sdata->u.ap.num_mcast_sta);
1803 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
1804 return atomic_read(&sdata->u.vlan.num_mcast_sta);
1808 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1809 struct ieee80211_rx_status *status,
1810 unsigned int mpdu_len,
1811 unsigned int mpdu_offset);
1812 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1813 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1814 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1816 void ieee80211_configure_filter(struct ieee80211_local *local);
1817 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1819 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
1820 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1821 u64 *cookie, gfp_t gfp);
1823 void ieee80211_check_fast_rx(struct sta_info *sta);
1824 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1825 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1826 void ieee80211_clear_fast_rx(struct sta_info *sta);
1829 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1830 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1831 struct cfg80211_auth_request *req);
1832 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1833 struct cfg80211_assoc_request *req);
1834 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1835 struct cfg80211_deauth_request *req);
1836 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1837 struct cfg80211_disassoc_request *req);
1838 void ieee80211_send_pspoll(struct ieee80211_local *local,
1839 struct ieee80211_sub_if_data *sdata);
1840 void ieee80211_recalc_ps(struct ieee80211_local *local);
1841 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1842 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1843 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1844 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1845 struct sk_buff *skb);
1846 void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata,
1847 struct sk_buff *skb);
1848 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1849 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1850 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1851 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1852 __le16 fc, bool acked);
1853 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1854 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1855 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1856 void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
1857 u8 *bssid, u8 reason, bool tx);
1860 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1861 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1862 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1863 const u8 *bssid, const u8 *addr, u32 supp_rates);
1864 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1865 struct cfg80211_ibss_params *params);
1866 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1867 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1868 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1869 struct sk_buff *skb);
1870 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1871 struct cfg80211_csa_settings *csa_settings);
1872 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
1873 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1876 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1877 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1878 const u8 *bssid, const u8 *addr, u32 supp_rates);
1879 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1880 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1881 struct ocb_setup *setup);
1882 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1885 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1886 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1887 struct sk_buff *skb);
1888 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1889 struct cfg80211_csa_settings *csa_settings);
1890 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
1892 /* scan/BSS handling */
1893 void ieee80211_scan_work(struct work_struct *work);
1894 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1895 const u8 *ssid, u8 ssid_len,
1896 struct ieee80211_channel **channels,
1897 unsigned int n_channels,
1898 enum nl80211_bss_scan_width scan_width);
1899 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1900 struct cfg80211_scan_request *req);
1901 void ieee80211_scan_cancel(struct ieee80211_local *local);
1902 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1903 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1905 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1906 struct ieee80211_bss *
1907 ieee80211_bss_info_update(struct ieee80211_local *local,
1908 struct ieee80211_rx_status *rx_status,
1909 struct ieee80211_mgmt *mgmt,
1911 struct ieee80211_channel *channel);
1912 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1913 struct ieee80211_bss *bss);
1915 /* scheduled scan handling */
1917 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1918 struct cfg80211_sched_scan_request *req);
1919 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1920 struct cfg80211_sched_scan_request *req);
1921 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
1922 void ieee80211_sched_scan_end(struct ieee80211_local *local);
1923 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1925 /* off-channel/mgmt-tx */
1926 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1927 void ieee80211_offchannel_return(struct ieee80211_local *local);
1928 void ieee80211_roc_setup(struct ieee80211_local *local);
1929 void ieee80211_start_next_roc(struct ieee80211_local *local);
1930 void ieee80211_roc_purge(struct ieee80211_local *local,
1931 struct ieee80211_sub_if_data *sdata);
1932 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
1933 struct ieee80211_channel *chan,
1934 unsigned int duration, u64 *cookie);
1935 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1936 struct wireless_dev *wdev, u64 cookie);
1937 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
1938 struct cfg80211_mgmt_tx_params *params, u64 *cookie);
1939 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1940 struct wireless_dev *wdev, u64 cookie);
1942 /* channel switch handling */
1943 void ieee80211_csa_finalize_work(struct work_struct *work);
1944 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1945 struct cfg80211_csa_settings *params);
1947 /* color change handling */
1948 void ieee80211_color_change_finalize_work(struct work_struct *work);
1950 /* interface handling */
1951 #define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
1952 NETIF_F_HW_CSUM | NETIF_F_SG | \
1953 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE)
1954 #define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM)
1955 #define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \
1956 MAC80211_SUPPORTED_FEATURES_RX)
1958 int ieee80211_iface_init(void);
1959 void ieee80211_iface_exit(void);
1960 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1961 unsigned char name_assign_type,
1962 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1963 struct vif_params *params);
1964 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1965 enum nl80211_iftype type);
1966 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1967 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1968 u32 ieee80211_idle_off(struct ieee80211_local *local);
1969 void ieee80211_recalc_idle(struct ieee80211_local *local);
1970 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1972 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1973 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
1974 int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1975 void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
1977 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1978 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
1980 void ieee80211_recalc_offload(struct ieee80211_local *local);
1982 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1984 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1988 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1989 void ieee80211_tx_pending(struct tasklet_struct *t);
1990 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1991 struct net_device *dev);
1992 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1993 struct net_device *dev);
1994 netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb,
1995 struct net_device *dev);
1996 void __ieee80211_subif_start_xmit(struct sk_buff *skb,
1997 struct net_device *dev,
2001 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
2002 struct sk_buff_head *skbs);
2004 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
2005 struct sk_buff *skb, u32 info_flags);
2006 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
2007 struct ieee80211_supported_band *sband,
2008 int retry_count, int shift, bool send_to_cooked,
2009 struct ieee80211_tx_status *status);
2011 void ieee80211_check_fast_xmit(struct sta_info *sta);
2012 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
2013 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
2014 void ieee80211_clear_fast_xmit(struct sta_info *sta);
2015 int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
2016 const u8 *buf, size_t len,
2017 const u8 *dest, __be16 proto, bool unencrypted,
2019 int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev,
2020 const u8 *buf, size_t len);
2021 void ieee80211_resort_txq(struct ieee80211_hw *hw,
2022 struct ieee80211_txq *txq);
2023 void ieee80211_unschedule_txq(struct ieee80211_hw *hw,
2024 struct ieee80211_txq *txq,
2026 void ieee80211_update_airtime_weight(struct ieee80211_local *local,
2027 struct airtime_sched_info *air_sched,
2028 u64 now, bool force);
2031 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
2032 struct ieee80211_sta_ht_cap *ht_cap);
2033 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
2034 struct ieee80211_supported_band *sband,
2035 const struct ieee80211_ht_cap *ht_cap_ie,
2036 struct sta_info *sta);
2037 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
2038 const u8 *da, u16 tid,
2039 u16 initiator, u16 reason_code);
2040 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
2041 enum ieee80211_smps_mode smps, const u8 *da,
2043 void ieee80211_request_smps_ap_work(struct work_struct *work);
2044 void ieee80211_request_smps_mgd_work(struct work_struct *work);
2045 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
2046 enum ieee80211_smps_mode smps_mode_new);
2048 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
2049 u16 initiator, u16 reason, bool stop);
2050 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
2051 u16 initiator, u16 reason, bool stop);
2052 void ___ieee80211_start_rx_ba_session(struct sta_info *sta,
2053 u8 dialog_token, u16 timeout,
2054 u16 start_seq_num, u16 ba_policy, u16 tid,
2055 u16 buf_size, bool tx, bool auto_seq,
2056 const struct ieee80211_addba_ext_ie *addbaext);
2057 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
2058 enum ieee80211_agg_stop_reason reason);
2059 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
2060 struct sta_info *sta,
2061 struct ieee80211_mgmt *mgmt, size_t len);
2062 void ieee80211_process_addba_resp(struct ieee80211_local *local,
2063 struct sta_info *sta,
2064 struct ieee80211_mgmt *mgmt,
2066 void ieee80211_process_addba_request(struct ieee80211_local *local,
2067 struct sta_info *sta,
2068 struct ieee80211_mgmt *mgmt,
2071 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
2072 enum ieee80211_agg_stop_reason reason);
2073 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
2074 enum ieee80211_agg_stop_reason reason);
2075 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid,
2076 struct tid_ampdu_tx *tid_tx);
2077 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
2078 struct tid_ampdu_tx *tid_tx);
2079 void ieee80211_ba_session_work(struct work_struct *work);
2080 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
2081 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
2083 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
2084 enum nl80211_smps_mode
2085 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps);
2089 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
2090 struct ieee80211_supported_band *sband,
2091 const struct ieee80211_vht_cap *vht_cap_ie,
2092 struct sta_info *sta);
2093 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta);
2094 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
2095 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
2096 enum ieee80211_sta_rx_bandwidth
2097 ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
2098 enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta);
2099 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
2100 struct ieee80211_mgmt *mgmt);
2101 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2102 struct sta_info *sta, u8 opmode,
2103 enum nl80211_band band);
2104 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2105 struct sta_info *sta, u8 opmode,
2106 enum nl80211_band band);
2107 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
2108 struct ieee80211_sta_vht_cap *vht_cap);
2109 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
2110 u16 vht_mask[NL80211_VHT_NSS_MAX]);
2111 enum nl80211_chan_width
2112 ieee80211_sta_rx_bw_to_chan_width(struct sta_info *sta);
2116 ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
2117 struct ieee80211_supported_band *sband,
2118 const u8 *he_cap_ie, u8 he_cap_len,
2119 const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
2120 struct sta_info *sta);
2122 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif,
2123 const struct ieee80211_he_spr *he_spr_ie_elem);
2126 ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif,
2127 const struct ieee80211_he_operation *he_op_ie_elem);
2130 void ieee80211_s1g_sta_rate_init(struct sta_info *sta);
2131 bool ieee80211_s1g_is_twt_setup(struct sk_buff *skb);
2132 void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata,
2133 struct sk_buff *skb);
2134 void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata,
2135 struct sk_buff *skb);
2137 /* Spectrum management */
2138 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
2139 struct ieee80211_mgmt *mgmt,
2142 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
2143 * @sdata: the sdata of the interface which has received the frame
2144 * @elems: parsed 802.11 elements received with the frame
2145 * @current_band: indicates the current band
2146 * @vht_cap_info: VHT capabilities of the transmitter
2147 * @sta_flags: contains information about own capabilities and restrictions
2148 * to decide which channel switch announcements can be accepted. Only the
2149 * following subset of &enum ieee80211_sta_flags are evaluated:
2150 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
2151 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
2152 * %IEEE80211_STA_DISABLE_160MHZ.
2153 * @bssid: the currently connected bssid (for reporting)
2154 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
2155 All of them will be filled with if success only.
2156 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
2158 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
2159 struct ieee802_11_elems *elems,
2160 enum nl80211_band current_band,
2162 u32 sta_flags, u8 *bssid,
2163 struct ieee80211_csa_ie *csa_ie);
2165 /* Suspend/resume and hw reconfiguration */
2166 int ieee80211_reconfig(struct ieee80211_local *local);
2167 void ieee80211_stop_device(struct ieee80211_local *local);
2169 int __ieee80211_suspend(struct ieee80211_hw *hw,
2170 struct cfg80211_wowlan *wowlan);
2172 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
2174 struct ieee80211_local *local = hw_to_local(hw);
2176 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
2177 !test_bit(SCAN_COMPLETED, &local->scanning),
2178 "%s: resume with hardware scan still in progress\n",
2179 wiphy_name(hw->wiphy));
2181 return ieee80211_reconfig(hw_to_local(hw));
2184 /* utility functions/constants */
2185 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
2186 int ieee80211_frame_duration(enum nl80211_band band, size_t len,
2187 int rate, int erp, int short_preamble,
2189 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
2190 struct ieee80211_tx_queue_params *qparam,
2192 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
2193 bool bss_notify, bool enable_qos);
2194 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
2195 struct sta_info *sta, struct sk_buff *skb);
2197 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2198 struct sk_buff *skb, int tid,
2199 enum nl80211_band band);
2201 /* sta_out needs to be checked for ERR_PTR() before using */
2202 int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
2203 struct sk_buff *skb,
2204 struct sta_info **sta_out);
2207 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2208 struct sk_buff *skb, int tid,
2209 enum nl80211_band band)
2212 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
2216 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
2217 struct sk_buff *skb, int tid)
2219 struct ieee80211_chanctx_conf *chanctx_conf;
2222 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
2223 if (WARN_ON(!chanctx_conf)) {
2229 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
2230 chanctx_conf->def.chan->band);
2234 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
2235 struct sk_buff *skb)
2237 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
2238 ieee80211_tx_skb_tid(sdata, skb, 7);
2241 struct ieee802_11_elems *ieee802_11_parse_elems_crc(const u8 *start, size_t len,
2243 u64 filter, u32 crc,
2244 const u8 *transmitter_bssid,
2245 const u8 *bss_bssid);
2246 static inline struct ieee802_11_elems *
2247 ieee802_11_parse_elems(const u8 *start, size_t len, bool action,
2248 const u8 *transmitter_bssid,
2249 const u8 *bss_bssid)
2251 return ieee802_11_parse_elems_crc(start, len, action, 0, 0,
2252 transmitter_bssid, bss_bssid);
2256 extern const int ieee802_1d_to_ac[8];
2258 static inline int ieee80211_ac_from_tid(int tid)
2260 return ieee802_1d_to_ac[tid & 7];
2263 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
2264 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
2265 void ieee80211_dynamic_ps_timer(struct timer_list *t);
2266 void ieee80211_send_nullfunc(struct ieee80211_local *local,
2267 struct ieee80211_sub_if_data *sdata,
2269 void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local,
2270 struct ieee80211_sub_if_data *sdata);
2271 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
2272 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
2274 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
2275 unsigned long queues,
2276 enum queue_stop_reason reason,
2278 void ieee80211_stop_vif_queues(struct ieee80211_local *local,
2279 struct ieee80211_sub_if_data *sdata,
2280 enum queue_stop_reason reason);
2281 void ieee80211_wake_vif_queues(struct ieee80211_local *local,
2282 struct ieee80211_sub_if_data *sdata,
2283 enum queue_stop_reason reason);
2284 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
2285 unsigned long queues,
2286 enum queue_stop_reason reason,
2288 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
2289 enum queue_stop_reason reason,
2291 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
2292 enum queue_stop_reason reason,
2294 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
2295 void ieee80211_add_pending_skb(struct ieee80211_local *local,
2296 struct sk_buff *skb);
2297 void ieee80211_add_pending_skbs(struct ieee80211_local *local,
2298 struct sk_buff_head *skbs);
2299 void ieee80211_flush_queues(struct ieee80211_local *local,
2300 struct ieee80211_sub_if_data *sdata, bool drop);
2301 void __ieee80211_flush_queues(struct ieee80211_local *local,
2302 struct ieee80211_sub_if_data *sdata,
2303 unsigned int queues, bool drop);
2305 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
2308 * It's unsafe to try to do any work during reconfigure flow.
2309 * When the flow ends the work will be requeued.
2311 if (local->in_reconfig)
2315 * If quiescing is set, we are racing with __ieee80211_suspend.
2316 * __ieee80211_suspend flushes the workers after setting quiescing,
2317 * and we check quiescing / suspended before enqueing new workers.
2318 * We should abort the worker to avoid the races below.
2320 if (local->quiescing)
2324 * We might already be suspended if the following scenario occurs:
2325 * __ieee80211_suspend Control path
2327 * if (local->quiescing)
2329 * local->quiescing = true;
2330 * flush_workqueue();
2332 * local->suspended = true;
2333 * local->quiescing = false;
2334 * worker starts running...
2336 if (local->suspended)
2342 int ieee80211_txq_setup_flows(struct ieee80211_local *local);
2343 void ieee80211_txq_set_params(struct ieee80211_local *local);
2344 void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
2345 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
2346 struct sta_info *sta,
2347 struct txq_info *txq, int tid);
2348 void ieee80211_txq_purge(struct ieee80211_local *local,
2349 struct txq_info *txqi);
2350 void ieee80211_txq_remove_vlan(struct ieee80211_local *local,
2351 struct ieee80211_sub_if_data *sdata);
2352 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
2353 struct txq_info *txqi);
2354 void ieee80211_wake_txqs(struct tasklet_struct *t);
2355 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
2356 u16 transaction, u16 auth_alg, u16 status,
2357 const u8 *extra, size_t extra_len, const u8 *bssid,
2358 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
2360 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
2361 const u8 *da, const u8 *bssid,
2362 u16 stype, u16 reason,
2363 bool send_frame, u8 *frame_buf);
2366 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0),
2367 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1),
2368 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2),
2371 int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer,
2373 struct ieee80211_scan_ies *ie_desc,
2374 const u8 *ie, size_t ie_len,
2375 u8 bands_used, u32 *rate_masks,
2376 struct cfg80211_chan_def *chandef,
2378 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
2379 const u8 *src, const u8 *dst,
2381 struct ieee80211_channel *chan,
2382 const u8 *ssid, size_t ssid_len,
2383 const u8 *ie, size_t ie_len,
2385 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
2386 struct ieee802_11_elems *elems,
2387 enum nl80211_band band, u32 *basic_rates);
2388 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2389 enum ieee80211_smps_mode smps_mode);
2390 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
2391 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
2393 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
2394 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2396 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2397 const struct cfg80211_chan_def *chandef,
2398 u16 prot_mode, bool rifs_mode);
2399 void ieee80211_ie_build_wide_bw_cs(u8 *pos,
2400 const struct cfg80211_chan_def *chandef);
2401 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2403 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2404 const struct cfg80211_chan_def *chandef);
2405 u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype);
2406 u8 *ieee80211_ie_build_he_cap(u32 disable_flags, u8 *pos,
2407 const struct ieee80211_sta_he_cap *he_cap,
2409 void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data *sdata,
2410 struct sk_buff *skb);
2411 u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef);
2412 int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
2413 const struct ieee80211_supported_band *sband,
2414 const u8 *srates, int srates_len, u32 *rates);
2415 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
2416 struct sk_buff *skb, bool need_basic,
2417 enum nl80211_band band);
2418 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
2419 struct sk_buff *skb, bool need_basic,
2420 enum nl80211_band band);
2421 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
2422 void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata,
2423 struct ieee80211_sta_s1g_cap *caps,
2424 struct sk_buff *skb);
2425 void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata,
2426 struct sk_buff *skb);
2428 /* channel management */
2429 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2430 struct cfg80211_chan_def *chandef);
2431 bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
2432 const struct ieee80211_vht_operation *oper,
2433 const struct ieee80211_ht_operation *htop,
2434 struct cfg80211_chan_def *chandef);
2435 bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
2436 const struct ieee80211_he_operation *he_oper,
2437 const struct ieee80211_eht_operation *eht_oper,
2438 struct cfg80211_chan_def *chandef);
2439 bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper,
2440 struct cfg80211_chan_def *chandef);
2441 u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
2444 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
2445 const struct cfg80211_chan_def *chandef,
2446 enum ieee80211_chanctx_mode mode);
2448 ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
2449 const struct cfg80211_chan_def *chandef,
2450 enum ieee80211_chanctx_mode mode,
2451 bool radar_required);
2453 ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata);
2454 int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);
2457 ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
2458 const struct cfg80211_chan_def *chandef,
2460 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
2461 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
2462 void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
2464 int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2465 struct ieee80211_chanctx *ctx);
2467 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2468 struct ieee80211_chanctx *chanctx);
2469 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2470 struct ieee80211_chanctx *ctx);
2471 bool ieee80211_is_radar_required(struct ieee80211_local *local);
2473 void ieee80211_dfs_cac_timer(unsigned long data);
2474 void ieee80211_dfs_cac_timer_work(struct work_struct *work);
2475 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2476 void ieee80211_dfs_radar_detected_work(struct work_struct *work);
2477 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2478 struct cfg80211_csa_settings *csa_settings);
2480 bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs);
2481 bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n);
2482 const struct ieee80211_cipher_scheme *
2483 ieee80211_cs_get(struct ieee80211_local *local, u32 cipher,
2484 enum nl80211_iftype iftype);
2485 int ieee80211_cs_headroom(struct ieee80211_local *local,
2486 struct cfg80211_crypto_settings *crypto,
2487 enum nl80211_iftype iftype);
2488 void ieee80211_recalc_dtim(struct ieee80211_local *local,
2489 struct ieee80211_sub_if_data *sdata);
2490 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2491 const struct cfg80211_chan_def *chandef,
2492 enum ieee80211_chanctx_mode chanmode,
2494 int ieee80211_max_num_channels(struct ieee80211_local *local);
2495 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2496 struct ieee80211_chanctx *ctx);
2499 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2500 const u8 *peer, u8 action_code, u8 dialog_token,
2501 u16 status_code, u32 peer_capability,
2502 bool initiator, const u8 *extra_ies,
2503 size_t extra_ies_len);
2504 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2505 const u8 *peer, enum nl80211_tdls_operation oper);
2506 void ieee80211_tdls_peer_del_work(struct work_struct *wk);
2507 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2508 const u8 *addr, u8 oper_class,
2509 struct cfg80211_chan_def *chandef);
2510 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2511 struct net_device *dev,
2513 void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
2514 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
2515 const u8 *peer, u16 reason);
2517 ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata,
2518 struct sk_buff *skb);
2521 const char *ieee80211_get_reason_code_string(u16 reason_code);
2522 u16 ieee80211_encode_usf(int val);
2523 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
2524 enum nl80211_iftype type);
2526 extern const struct ethtool_ops ieee80211_ethtool_ops;
2528 u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw,
2529 struct ieee80211_vif *vif,
2530 struct ieee80211_sta *pubsta,
2531 int len, bool ampdu);
2532 #ifdef CONFIG_MAC80211_NOINLINE
2533 #define debug_noinline noinline
2535 #define debug_noinline
2538 void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache);
2539 void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache);
2541 u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata, u8 iftype);
2542 u8 *ieee80211_ie_build_eht_cap(u8 *pos,
2543 const struct ieee80211_sta_he_cap *he_cap,
2544 const struct ieee80211_sta_eht_cap *eht_cap,
2548 ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata,
2549 struct ieee80211_supported_band *sband,
2550 const u8 *he_cap_ie, u8 he_cap_len,
2551 const struct ieee80211_eht_cap_elem *eht_cap_ie_elem,
2552 u8 eht_cap_len, struct sta_info *sta);
2553 #endif /* IEEE80211_I_H */