2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005, Devicescape Software, Inc.
4 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
5 * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net>
6 * Copyright 2013-2015 Intel Mobile Communications GmbH
7 * Copyright (C) 2018 Intel Corporation
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
17 #include <linux/kernel.h>
18 #include <linux/device.h>
19 #include <linux/if_ether.h>
20 #include <linux/interrupt.h>
21 #include <linux/list.h>
22 #include <linux/netdevice.h>
23 #include <linux/skbuff.h>
24 #include <linux/workqueue.h>
25 #include <linux/types.h>
26 #include <linux/spinlock.h>
27 #include <linux/etherdevice.h>
28 #include <linux/leds.h>
29 #include <linux/idr.h>
30 #include <linux/rhashtable.h>
31 #include <net/ieee80211_radiotap.h>
32 #include <net/cfg80211.h>
33 #include <net/mac80211.h>
39 extern const struct cfg80211_ops mac80211_config_ops;
41 struct ieee80211_local;
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 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
57 * reception of at least three fragmented frames. This limit can be increased
58 * by changing this define, at the cost of slower frame reassembly and
59 * increased memory use (about 2 kB of RAM per entry). */
60 #define IEEE80211_FRAGMENT_MAX 4
62 /* power level hasn't been configured (or set to automatic) */
63 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN
66 * Some APs experience problems when working with U-APSD. Decreasing the
67 * probability of that happening by using legacy mode for all ACs but VO isn't
70 * Cisco 4410N originally forced us to enable VO by default only because it
71 * treated non-VO ACs as legacy.
73 * However some APs (notably Netgear R7000) silently reclassify packets to
74 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval
75 * clients would never see some frames (e.g. ARP responses) or would fetch them
76 * accidentally after a long time.
78 * It makes little sense to enable u-APSD queues by default because it needs
79 * userspace applications to be aware of it to actually take advantage of the
80 * possible additional powersavings. Implicitly depending on driver autotrigger
81 * frame support doesn't make much sense.
83 #define IEEE80211_DEFAULT_UAPSD_QUEUES 0
85 #define IEEE80211_DEFAULT_MAX_SP_LEN \
86 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
88 extern const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS];
90 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
92 #define IEEE80211_MAX_NAN_INSTANCE_ID 255
94 struct ieee80211_fragment_entry {
95 struct sk_buff_head skb_list;
96 unsigned long first_frag_time;
101 bool check_sequential_pn; /* needed for CCMP/GCMP */
102 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
106 struct ieee80211_bss {
107 u32 device_ts_beacon, device_ts_presp;
110 bool uapsd_supported;
112 #define IEEE80211_MAX_SUPP_RATES 32
113 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
114 size_t supp_rates_len;
115 struct ieee80211_rate *beacon_rate;
118 * During association, we save an ERP value from a probe response so
119 * that we can feed ERP info to the driver when handling the
120 * association completes. these fields probably won't be up-to-date
121 * otherwise, you probably don't want to use them.
126 /* Keep track of the corruption of the last beacon/probe response. */
129 /* Keep track of what bits of information we have valid info for. */
134 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
135 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
136 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
138 * These are bss flags that are attached to a bss in the
139 * @corrupt_data field of &struct ieee80211_bss.
141 enum ieee80211_bss_corrupt_data_flags {
142 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
143 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
147 * enum ieee80211_valid_data_flags - BSS valid data flags
148 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
149 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
150 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
152 * These are bss flags that are attached to a bss in the
153 * @valid_data field of &struct ieee80211_bss. They show which parts
154 * of the data structure were received as a result of an un-corrupted
155 * beacon/probe response.
157 enum ieee80211_bss_valid_data_flags {
158 IEEE80211_BSS_VALID_WMM = BIT(1),
159 IEEE80211_BSS_VALID_RATES = BIT(2),
160 IEEE80211_BSS_VALID_ERP = BIT(3)
163 typedef unsigned __bitwise ieee80211_tx_result;
164 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
165 #define TX_DROP ((__force ieee80211_tx_result) 1u)
166 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
168 #define IEEE80211_TX_UNICAST BIT(1)
169 #define IEEE80211_TX_PS_BUFFERED BIT(2)
171 struct ieee80211_tx_data {
173 struct sk_buff_head skbs;
174 struct ieee80211_local *local;
175 struct ieee80211_sub_if_data *sdata;
176 struct sta_info *sta;
177 struct ieee80211_key *key;
178 struct ieee80211_tx_rate rate;
184 typedef unsigned __bitwise ieee80211_rx_result;
185 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
186 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
187 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
188 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
191 * enum ieee80211_packet_rx_flags - packet RX flags
192 * @IEEE80211_RX_AMSDU: a-MSDU packet
193 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
194 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
196 * These are per-frame flags that are attached to a frame in the
197 * @rx_flags field of &struct ieee80211_rx_status.
199 enum ieee80211_packet_rx_flags {
200 IEEE80211_RX_AMSDU = BIT(3),
201 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
202 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
206 * enum ieee80211_rx_flags - RX data flags
208 * @IEEE80211_RX_CMNTR: received on cooked monitor already
209 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
210 * to cfg80211_report_obss_beacon().
212 * These flags are used across handling multiple interfaces
213 * for a single frame.
215 enum ieee80211_rx_flags {
216 IEEE80211_RX_CMNTR = BIT(0),
217 IEEE80211_RX_BEACON_REPORTED = BIT(1),
220 struct ieee80211_rx_data {
221 struct napi_struct *napi;
223 struct ieee80211_local *local;
224 struct ieee80211_sub_if_data *sdata;
225 struct sta_info *sta;
226 struct ieee80211_key *key;
231 * Index into sequence numbers array, 0..16
232 * since the last (16) is used for non-QoS,
233 * will be 16 on non-QoS frames.
238 * Index into the security IV/PN arrays, 0..16
239 * since the last (16) is used for CCMP-encrypted
240 * management frames, will be set to 16 on mgmt
241 * frames and 0 on non-QoS frames.
249 struct ieee80211_csa_settings {
250 const u16 *counter_offsets_beacon;
251 const u16 *counter_offsets_presp;
253 int n_counter_offsets_beacon;
254 int n_counter_offsets_presp;
261 int head_len, tail_len;
262 struct ieee80211_meshconf_ie *meshconf;
263 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
264 u8 csa_current_counter;
265 struct rcu_head rcu_head;
269 struct rcu_head rcu_head;
271 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
276 /* yes, this looks ugly, but guarantees that we can later use
278 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
279 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
280 __aligned(__alignof__(unsigned long));
281 struct sk_buff_head bc_buf;
282 atomic_t num_sta_ps; /* number of stations in PS mode */
287 struct ieee80211_if_ap {
288 struct beacon_data __rcu *beacon;
289 struct probe_resp __rcu *probe_resp;
291 /* to be used after channel switch. */
292 struct cfg80211_beacon_data *next_beacon;
293 struct list_head vlans; /* write-protected with RTNL and local->mtx */
296 atomic_t num_mcast_sta; /* number of stations receiving multicast */
297 enum ieee80211_smps_mode req_smps, /* requested smps mode */
298 driver_smps_mode; /* smps mode request */
300 struct work_struct request_smps_work;
301 bool multicast_to_unicast;
304 struct ieee80211_if_wds {
305 struct sta_info *sta;
306 u8 remote_addr[ETH_ALEN];
309 struct ieee80211_if_vlan {
310 struct list_head list; /* write-protected with RTNL and local->mtx */
312 /* used for all tx if the VLAN is configured to 4-addr mode */
313 struct sta_info __rcu *sta;
314 atomic_t num_mcast_sta; /* number of stations receiving multicast */
318 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
319 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
320 __u32 fwded_frames; /* Mesh total forwarded frames */
321 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
322 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
323 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
326 #define PREQ_Q_F_START 0x1
327 #define PREQ_Q_F_REFRESH 0x2
328 struct mesh_preq_queue {
329 struct list_head list;
334 struct ieee80211_roc_work {
335 struct list_head list;
337 struct ieee80211_sub_if_data *sdata;
339 struct ieee80211_channel *chan;
341 bool started, abort, hw_begun, notified;
344 unsigned long start_time;
346 u32 duration, req_duration;
347 struct sk_buff *frame;
348 u64 cookie, mgmt_tx_cookie;
349 enum ieee80211_roc_type type;
352 /* flags used in struct ieee80211_if_managed.flags */
353 enum ieee80211_sta_flags {
354 IEEE80211_STA_CONNECTION_POLL = BIT(1),
355 IEEE80211_STA_CONTROL_PORT = BIT(2),
356 IEEE80211_STA_DISABLE_HT = BIT(4),
357 IEEE80211_STA_MFP_ENABLED = BIT(6),
358 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
359 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
360 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
361 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
362 IEEE80211_STA_DISABLE_VHT = BIT(11),
363 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
364 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
365 IEEE80211_STA_DISABLE_WMM = BIT(14),
366 IEEE80211_STA_ENABLE_RRM = BIT(15),
369 struct ieee80211_mgd_auth_data {
370 struct cfg80211_bss *bss;
371 unsigned long timeout;
373 u16 algorithm, expected_transaction;
375 u8 key[WLAN_KEY_LEN_WEP104];
378 bool timeout_started;
380 u16 sae_trans, sae_status;
385 struct ieee80211_mgd_assoc_data {
386 struct cfg80211_bss *bss;
387 const u8 *supp_rates;
389 unsigned long timeout;
393 u8 prev_bssid[ETH_ALEN];
394 u8 ssid[IEEE80211_MAX_SSID_LEN];
400 bool timeout_started;
404 struct ieee80211_vht_cap ap_vht_cap;
406 u8 fils_nonces[2 * FILS_NONCE_LEN];
407 u8 fils_kek[FILS_MAX_KEK_LEN];
414 struct ieee80211_sta_tx_tspec {
415 /* timestamp of the first packet in the time slice */
416 unsigned long time_slice_start;
418 u32 admitted_time; /* in usecs, unlike over the air */
420 s8 up; /* signed to be able to invalidate with -1 during teardown */
422 /* consumed TX time in microseconds in the time slice */
423 u32 consumed_tx_time;
425 TX_TSPEC_ACTION_NONE = 0,
426 TX_TSPEC_ACTION_DOWNGRADE,
427 TX_TSPEC_ACTION_STOP_DOWNGRADE,
432 DECLARE_EWMA(beacon_signal, 4, 4)
434 struct ieee80211_if_managed {
435 struct timer_list timer;
436 struct timer_list conn_mon_timer;
437 struct timer_list bcn_mon_timer;
438 struct timer_list chswitch_timer;
439 struct work_struct monitor_work;
440 struct work_struct chswitch_work;
441 struct work_struct beacon_connection_loss_work;
442 struct work_struct csa_connection_drop_work;
444 unsigned long beacon_timeout;
445 unsigned long probe_timeout;
446 int probe_send_count;
447 bool nullfunc_failed;
448 bool connection_loss;
450 struct cfg80211_bss *associated;
451 struct ieee80211_mgd_auth_data *auth_data;
452 struct ieee80211_mgd_assoc_data *assoc_data;
454 u8 bssid[ETH_ALEN] __aligned(2);
458 bool powersave; /* powersave requested for this iface */
459 bool broken_ap; /* AP is broken -- turn off powersave */
462 enum ieee80211_smps_mode req_smps, /* requested smps mode */
463 driver_smps_mode; /* smps mode request */
465 struct work_struct request_smps_work;
469 bool csa_waiting_bcn;
470 bool csa_ignored_same_chan;
472 bool beacon_crc_valid;
476 bool status_received;
480 IEEE80211_MFP_DISABLED,
481 IEEE80211_MFP_OPTIONAL,
482 IEEE80211_MFP_REQUIRED
483 } mfp; /* management frame protection */
486 * Bitmask of enabled u-apsd queues,
487 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
490 unsigned int uapsd_queues;
493 * Maximum number of buffered frames AP can deliver during a
494 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
495 * Needs a new association to take effect.
497 unsigned int uapsd_max_sp_len;
499 int wmm_last_param_set;
505 struct ewma_beacon_signal ave_beacon_signal;
508 * Number of Beacon frames used in ave_beacon_signal. This can be used
509 * to avoid generating less reliable cqm events that would be based
510 * only on couple of received frames.
512 unsigned int count_beacon_signal;
514 /* Number of times beacon loss was invoked. */
515 unsigned int beacon_loss_count;
518 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
519 * that triggered a cqm event. 0 indicates that no event has been
520 * generated for the current association.
522 int last_cqm_event_signal;
525 * State variables for keeping track of RSSI of the AP currently
526 * connected to and informing driver when RSSI has gone
527 * below/above a certain threshold.
529 int rssi_min_thold, rssi_max_thold;
530 int last_ave_beacon_signal;
532 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
533 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
534 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
535 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
538 u8 tdls_peer[ETH_ALEN] __aligned(2);
539 struct delayed_work tdls_peer_del_work;
540 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
541 struct sk_buff *teardown_skb; /* A copy to send through the AP */
542 spinlock_t teardown_lock; /* To lock changing teardown_skb */
543 bool tdls_chan_switch_prohibited;
544 bool tdls_wider_bw_prohibited;
546 /* WMM-AC TSPEC support */
547 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
548 /* Use a separate work struct so that we can do something here
549 * while the sdata->work is flushing the queues, for example.
550 * otherwise, in scenarios where we hardly get any traffic out
551 * on the BE queue, but there's a lot of VO traffic, we might
552 * get stuck in a downgraded situation and flush takes forever.
554 struct delayed_work tx_tspec_wk;
557 struct ieee80211_if_ibss {
558 struct timer_list timer;
559 struct work_struct csa_connection_drop_work;
561 unsigned long last_scan_completed;
570 bool userspace_handles_dfs;
572 u8 bssid[ETH_ALEN] __aligned(2);
573 u8 ssid[IEEE80211_MAX_SSID_LEN];
576 struct cfg80211_chan_def chandef;
578 unsigned long ibss_join_req;
579 /* probe response/beacon for IBSS */
580 struct beacon_data __rcu *presp;
582 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
583 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
585 spinlock_t incomplete_lock;
586 struct list_head incomplete_stations;
589 IEEE80211_IBSS_MLME_SEARCH,
590 IEEE80211_IBSS_MLME_JOINED,
595 * struct ieee80211_if_ocb - OCB mode state
597 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
598 * @wrkq_flags: OCB deferred task action
599 * @incomplete_lock: delayed STA insertion lock
600 * @incomplete_stations: list of STAs waiting for delayed insertion
601 * @joined: indication if the interface is connected to an OCB network
603 struct ieee80211_if_ocb {
604 struct timer_list housekeeping_timer;
605 unsigned long wrkq_flags;
607 spinlock_t incomplete_lock;
608 struct list_head incomplete_stations;
614 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
616 * these declarations define the interface, which enables
617 * vendor-specific mesh synchronization
620 struct ieee802_11_elems;
621 struct ieee80211_mesh_sync_ops {
622 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
624 struct ieee80211_mgmt *mgmt,
625 struct ieee802_11_elems *elems,
626 struct ieee80211_rx_status *rx_status);
628 /* should be called with beacon_data under RCU read lock */
629 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata,
630 struct beacon_data *beacon);
631 /* add other framework functions here */
634 struct mesh_csa_settings {
635 struct rcu_head rcu_head;
636 struct cfg80211_csa_settings settings;
639 struct ieee80211_if_mesh {
640 struct timer_list housekeeping_timer;
641 struct timer_list mesh_path_timer;
642 struct timer_list mesh_path_root_timer;
644 unsigned long wrkq_flags;
645 unsigned long mbss_changed;
647 bool userspace_handles_dfs;
649 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
651 /* Active Path Selection Protocol Identifier */
653 /* Active Path Selection Metric Identifier */
655 /* Congestion Control Mode Identifier */
657 /* Synchronization Protocol Identifier */
659 /* Authentication Protocol Identifier */
661 /* Local mesh Sequence Number */
663 /* Last used PREQ ID */
666 /* Timestamp of last SN update */
667 unsigned long last_sn_update;
668 /* Time when it's ok to send next PERR */
669 unsigned long next_perr;
670 /* Timestamp of last PREQ sent */
671 unsigned long last_preq;
672 struct mesh_rmc *rmc;
673 spinlock_t mesh_preq_queue_lock;
674 struct mesh_preq_queue preq_queue;
676 struct mesh_stats mshstats;
677 struct mesh_config mshcfg;
678 atomic_t estab_plinks;
680 bool accepting_plinks;
682 struct beacon_data __rcu *beacon;
686 IEEE80211_MESH_SEC_NONE = 0x0,
687 IEEE80211_MESH_SEC_AUTHED = 0x1,
688 IEEE80211_MESH_SEC_SECURED = 0x2,
691 /* Extensible Synchronization Framework */
692 const struct ieee80211_mesh_sync_ops *sync_ops;
693 s64 sync_offset_clockdrift_max;
694 spinlock_t sync_offset_lock;
695 /* mesh power save */
696 enum nl80211_mesh_power_mode nonpeer_pm;
697 int ps_peers_light_sleep;
698 int ps_peers_deep_sleep;
700 /* Channel Switching Support */
701 struct mesh_csa_settings __rcu *csa;
703 IEEE80211_MESH_CSA_ROLE_NONE,
704 IEEE80211_MESH_CSA_ROLE_INIT,
705 IEEE80211_MESH_CSA_ROLE_REPEATER,
710 /* offset from skb->data while building IE */
713 struct mesh_table *mesh_paths;
714 struct mesh_table *mpp_paths; /* Store paths for MPP&MAP */
715 int mesh_paths_generation;
716 int mpp_paths_generation;
719 #ifdef CONFIG_MAC80211_MESH
720 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
721 do { (msh)->mshstats.name++; } while (0)
723 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
728 * enum ieee80211_sub_if_data_flags - virtual interface flags
730 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
731 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
732 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
733 * associated stations and deliver multicast frames both
734 * back to wireless media and to the local net stack.
735 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
736 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
738 enum ieee80211_sub_if_data_flags {
739 IEEE80211_SDATA_ALLMULTI = BIT(0),
740 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
741 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
742 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
743 IEEE80211_SDATA_IN_DRIVER = BIT(5),
747 * enum ieee80211_sdata_state_bits - virtual interface state bits
748 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
749 * mirrors netif_running() but is separate for interface type
750 * change handling while the interface is up
751 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
752 * mode, so queues are stopped
753 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
754 * to offchannel, reset when offchannel returns
756 enum ieee80211_sdata_state_bits {
758 SDATA_STATE_OFFCHANNEL,
759 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
763 * enum ieee80211_chanctx_mode - channel context configuration mode
765 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
766 * multiple interfaces
767 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
768 * only by a single interface. This can be used for example for
769 * non-fixed channel IBSS.
771 enum ieee80211_chanctx_mode {
772 IEEE80211_CHANCTX_SHARED,
773 IEEE80211_CHANCTX_EXCLUSIVE
777 * enum ieee80211_chanctx_replace_state - channel context replacement state
779 * This is used for channel context in-place reservations that require channel
780 * context switch/swap.
782 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
783 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
784 * by a (not yet registered) channel context pointed by %replace_ctx.
785 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
786 * replaces an existing channel context pointed to by %replace_ctx.
788 enum ieee80211_chanctx_replace_state {
789 IEEE80211_CHANCTX_REPLACE_NONE,
790 IEEE80211_CHANCTX_WILL_BE_REPLACED,
791 IEEE80211_CHANCTX_REPLACES_OTHER,
794 struct ieee80211_chanctx {
795 struct list_head list;
796 struct rcu_head rcu_head;
798 struct list_head assigned_vifs;
799 struct list_head reserved_vifs;
801 enum ieee80211_chanctx_replace_state replace_state;
802 struct ieee80211_chanctx *replace_ctx;
804 enum ieee80211_chanctx_mode mode;
807 struct ieee80211_chanctx_conf conf;
810 struct mac80211_qos_map {
811 struct cfg80211_qos_map qos_map;
812 struct rcu_head rcu_head;
815 enum txq_info_flags {
818 IEEE80211_TXQ_NO_AMSDU,
822 * struct txq_info - per tid queue
824 * @tin: contains packets split into multiple flows
825 * @def_flow: used as a fallback flow when a packet destined to @tin hashes to
826 * a fq_flow which is already owned by a different tin
827 * @def_cvars: codel vars for @def_flow
828 * @frags: used to keep fragments created after dequeue
832 struct fq_flow def_flow;
833 struct codel_vars def_cvars;
834 struct codel_stats cstats;
835 struct sk_buff_head frags;
839 struct ieee80211_txq txq;
842 struct ieee80211_if_mntr {
844 u8 mu_follow_addr[ETH_ALEN] __aligned(2);
846 struct list_head list;
850 * struct ieee80211_if_nan - NAN state
852 * @conf: current NAN configuration
853 * @func_ids: a bitmap of available instance_id's
855 struct ieee80211_if_nan {
856 struct cfg80211_nan_conf conf;
858 /* protects function_inst_ids */
859 spinlock_t func_lock;
860 struct idr function_inst_ids;
863 struct ieee80211_sub_if_data {
864 struct list_head list;
866 struct wireless_dev wdev;
869 struct list_head key_list;
871 /* count for keys needing tailroom space allocation */
872 int crypto_tx_tailroom_needed_cnt;
873 int crypto_tx_tailroom_pending_dec;
874 struct delayed_work dec_tailroom_needed_wk;
876 struct net_device *dev;
877 struct ieee80211_local *local;
885 /* Fragment table for host-based reassembly */
886 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
887 unsigned int fragment_next;
889 /* TID bitmap for NoAck policy */
892 /* bit field of ACM bits (BIT(802.1D tag)) */
895 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
896 struct ieee80211_key __rcu *default_unicast_key;
897 struct ieee80211_key __rcu *default_multicast_key;
898 struct ieee80211_key __rcu *default_mgmt_key;
901 __be16 control_port_protocol;
902 bool control_port_no_encrypt;
903 bool control_port_over_nl80211;
904 int encrypt_headroom;
906 atomic_t num_tx_queued;
907 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
908 struct mac80211_qos_map __rcu *qos_map;
910 struct work_struct csa_finalize_work;
911 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
912 struct cfg80211_chan_def csa_chandef;
914 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
915 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
917 /* context reservation -- protected with chanctx_mtx */
918 struct ieee80211_chanctx *reserved_chanctx;
919 struct cfg80211_chan_def reserved_chandef;
920 bool reserved_radar_required;
923 /* used to reconfigure hardware SM PS */
924 struct work_struct recalc_smps;
926 struct work_struct work;
927 struct sk_buff_head skb_queue;
930 enum ieee80211_smps_mode smps_mode;
932 int user_power_level; /* in dBm */
933 int ap_power_level; /* in dBm */
936 struct delayed_work dfs_cac_timer_work;
939 * AP this belongs to: self in AP mode and
940 * corresponding AP in VLAN mode, NULL for
941 * all others (might be needed later in IBSS)
943 struct ieee80211_if_ap *bss;
945 /* bitmap of allowed (non-MCS) rate indexes for rate control */
946 u32 rc_rateidx_mask[NUM_NL80211_BANDS];
948 bool rc_has_mcs_mask[NUM_NL80211_BANDS];
949 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
951 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
952 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
955 struct ieee80211_if_ap ap;
956 struct ieee80211_if_wds wds;
957 struct ieee80211_if_vlan vlan;
958 struct ieee80211_if_managed mgd;
959 struct ieee80211_if_ibss ibss;
960 struct ieee80211_if_mesh mesh;
961 struct ieee80211_if_ocb ocb;
962 struct ieee80211_if_mntr mntr;
963 struct ieee80211_if_nan nan;
966 #ifdef CONFIG_MAC80211_DEBUGFS
968 struct dentry *subdir_stations;
969 struct dentry *default_unicast_key;
970 struct dentry *default_multicast_key;
971 struct dentry *default_mgmt_key;
975 /* must be last, dynamically sized area in this! */
976 struct ieee80211_vif vif;
980 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
982 return container_of(p, struct ieee80211_sub_if_data, vif);
985 static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
986 __acquires(&sdata->wdev.mtx)
988 mutex_lock(&sdata->wdev.mtx);
989 __acquire(&sdata->wdev.mtx);
992 static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
993 __releases(&sdata->wdev.mtx)
995 mutex_unlock(&sdata->wdev.mtx);
996 __release(&sdata->wdev.mtx);
999 #define sdata_dereference(p, sdata) \
1000 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
1003 sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
1005 lockdep_assert_held(&sdata->wdev.mtx);
1009 ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
1011 switch (chandef->width) {
1012 case NL80211_CHAN_WIDTH_5:
1014 case NL80211_CHAN_WIDTH_10:
1022 ieee80211_vif_get_shift(struct ieee80211_vif *vif)
1024 struct ieee80211_chanctx_conf *chanctx_conf;
1028 chanctx_conf = rcu_dereference(vif->chanctx_conf);
1030 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
1037 IEEE80211_RX_MSG = 1,
1038 IEEE80211_TX_STATUS_MSG = 2,
1041 enum queue_stop_reason {
1042 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1043 IEEE80211_QUEUE_STOP_REASON_PS,
1044 IEEE80211_QUEUE_STOP_REASON_CSA,
1045 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1046 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1047 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1048 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1049 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1050 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1051 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1053 IEEE80211_QUEUE_STOP_REASONS,
1056 #ifdef CONFIG_MAC80211_LEDS
1057 struct tpt_led_trigger {
1059 const struct ieee80211_tpt_blink *blink_table;
1060 unsigned int blink_table_len;
1061 struct timer_list timer;
1062 struct ieee80211_local *local;
1063 unsigned long prev_traffic;
1064 unsigned long tx_bytes, rx_bytes;
1065 unsigned int active, want;
1071 * mac80211 scan flags - currently active scan mode
1073 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1074 * well be on the operating channel
1075 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1076 * determine if we are on the operating channel or not
1077 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1078 * channel. This should not interrupt normal traffic.
1079 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1080 * that the scan completed.
1081 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1082 * a scan complete for an aborted scan.
1083 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1089 SCAN_ONCHANNEL_SCANNING,
1096 * enum mac80211_scan_state - scan state machine states
1098 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1099 * determines if we should keep on scanning or switch back to the
1101 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1102 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1103 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1105 * @SCAN_RESUME: Resume the scan and scan the next channel
1106 * @SCAN_ABORT: Abort the scan and go back to operating channel
1108 enum mac80211_scan_state {
1117 struct ieee80211_local {
1118 /* embed the driver visible part.
1119 * don't cast (use the static inlines below), but we keep
1120 * it first anyway so they become a no-op */
1121 struct ieee80211_hw hw;
1124 struct codel_vars *cvars;
1125 struct codel_params cparams;
1127 const struct ieee80211_ops *ops;
1130 * private workqueue to mac80211. mac80211 makes this accessible
1131 * via ieee80211_queue_work()
1133 struct workqueue_struct *workqueue;
1135 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1136 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1137 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1138 spinlock_t queue_stop_reason_lock;
1141 int monitors, cooked_mntrs;
1142 /* number of interfaces with corresponding FIF_ flags */
1143 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1146 unsigned int filter_flags; /* FIF_* */
1148 bool wiphy_ciphers_allocated;
1152 /* protects the aggregated multicast list and filter calls */
1153 spinlock_t filter_lock;
1155 /* used for uploading changed mc list */
1156 struct work_struct reconfig_filter;
1158 /* aggregated multicast list */
1159 struct netdev_hw_addr_list mc_list;
1161 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1164 * suspended is true if we finished all the suspend _and_ we have
1165 * not yet come up from resume. This is to be used by mac80211
1166 * to ensure driver sanity during suspend and mac80211's own
1167 * sanity. It can eventually be used for WoW as well.
1172 * Resuming is true while suspended, but when we're reprogramming the
1173 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1174 * again even though some other parts of the stack are still suspended
1175 * and we still drop received frames to avoid waking the stack.
1180 * quiescing is true during the suspend process _only_ to
1181 * ease timer cancelling etc.
1185 /* device is started */
1188 /* device is during a HW reconfig */
1191 /* wowlan is enabled -- don't reconfig on resume */
1194 struct work_struct radar_detected_work;
1196 /* number of RX chains the hardware has */
1199 int tx_headroom; /* required headroom for hardware/radiotap */
1201 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1202 * added to skb_queue will be processed, but frames in
1203 * skb_queue_unreliable may be dropped if the total length of these
1204 * queues increases over the limit. */
1205 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1206 struct tasklet_struct tasklet;
1207 struct sk_buff_head skb_queue;
1208 struct sk_buff_head skb_queue_unreliable;
1210 spinlock_t rx_path_lock;
1214 * The mutex only protects the list, hash table and
1215 * counter, reads are done with RCU.
1217 struct mutex sta_mtx;
1218 spinlock_t tim_lock;
1219 unsigned long num_sta;
1220 struct list_head sta_list;
1221 struct rhltable sta_hash;
1222 struct timer_list sta_cleanup;
1225 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1226 struct tasklet_struct tx_pending_tasklet;
1228 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1230 /* number of interfaces with allmulti RX */
1231 atomic_t iff_allmultis;
1233 struct rate_control_ref *rate_ctrl;
1235 struct crypto_cipher *wep_tx_tfm;
1236 struct crypto_cipher *wep_rx_tfm;
1240 struct list_head interfaces;
1241 struct list_head mon_list; /* only that are IFF_UP && !cooked */
1242 struct mutex iflist_mtx;
1245 * Key mutex, protects sdata's key_list and sta_info's
1246 * key pointers (write access, they're RCU.)
1248 struct mutex key_mtx;
1250 /* mutex for scan and work locking */
1253 /* Scanning and BSS list */
1254 unsigned long scanning;
1255 struct cfg80211_ssid scan_ssid;
1256 struct cfg80211_scan_request *int_scan_req;
1257 struct cfg80211_scan_request __rcu *scan_req;
1258 struct ieee80211_scan_request *hw_scan_req;
1259 struct cfg80211_chan_def scan_chandef;
1260 enum nl80211_band hw_scan_band;
1261 int scan_channel_idx;
1263 int hw_scan_ies_bufsize;
1264 struct cfg80211_scan_info scan_info;
1266 struct work_struct sched_scan_stopped_work;
1267 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1268 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1269 u8 scan_addr[ETH_ALEN];
1271 unsigned long leave_oper_channel_time;
1272 enum mac80211_scan_state next_scan_state;
1273 struct delayed_work scan_work;
1274 struct ieee80211_sub_if_data __rcu *scan_sdata;
1275 /* For backward compatibility only -- do not use */
1276 struct cfg80211_chan_def _oper_chandef;
1278 /* Temporary remain-on-channel for off-channel operations */
1279 struct ieee80211_channel *tmp_channel;
1281 /* channel contexts */
1282 struct list_head chanctx_list;
1283 struct mutex chanctx_mtx;
1285 #ifdef CONFIG_MAC80211_LEDS
1286 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1287 struct led_trigger tpt_led;
1288 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1289 atomic_t radio_led_active, tpt_led_active;
1290 struct tpt_led_trigger *tpt_led_trigger;
1293 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1295 /* dot11CountersTable */
1296 u32 dot11TransmittedFragmentCount;
1297 u32 dot11MulticastTransmittedFrameCount;
1298 u32 dot11FailedCount;
1299 u32 dot11RetryCount;
1300 u32 dot11MultipleRetryCount;
1301 u32 dot11FrameDuplicateCount;
1302 u32 dot11ReceivedFragmentCount;
1303 u32 dot11MulticastReceivedFrameCount;
1304 u32 dot11TransmittedFrameCount;
1306 /* TX/RX handler statistics */
1307 unsigned int tx_handlers_drop;
1308 unsigned int tx_handlers_queued;
1309 unsigned int tx_handlers_drop_wep;
1310 unsigned int tx_handlers_drop_not_assoc;
1311 unsigned int tx_handlers_drop_unauth_port;
1312 unsigned int rx_handlers_drop;
1313 unsigned int rx_handlers_queued;
1314 unsigned int rx_handlers_drop_nullfunc;
1315 unsigned int rx_handlers_drop_defrag;
1316 unsigned int tx_expand_skb_head;
1317 unsigned int tx_expand_skb_head_cloned;
1318 unsigned int rx_expand_skb_head_defrag;
1319 unsigned int rx_handlers_fragments;
1320 unsigned int tx_status_drop;
1321 #define I802_DEBUG_INC(c) (c)++
1322 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1323 #define I802_DEBUG_INC(c) do { } while (0)
1324 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1327 int total_ps_buffered; /* total number of all buffered unicast and
1328 * multicast packets for power saving stations
1332 bool offchannel_ps_enabled;
1334 * PS can only be enabled when we have exactly one managed
1335 * interface (and monitors) in PS, this then points there.
1337 struct ieee80211_sub_if_data *ps_sdata;
1338 struct work_struct dynamic_ps_enable_work;
1339 struct work_struct dynamic_ps_disable_work;
1340 struct timer_list dynamic_ps_timer;
1341 struct notifier_block ifa_notifier;
1342 struct notifier_block ifa6_notifier;
1345 * The dynamic ps timeout configured from user space via WEXT -
1346 * this will override whatever chosen by mac80211 internally.
1348 int dynamic_ps_forced_timeout;
1350 int user_power_level; /* in dBm, for all interfaces */
1352 enum ieee80211_smps_mode smps_mode;
1354 struct work_struct restart_work;
1356 #ifdef CONFIG_MAC80211_DEBUGFS
1357 struct local_debugfsdentries {
1358 struct dentry *rcdir;
1359 struct dentry *keys;
1364 * Remain-on-channel support
1366 struct delayed_work roc_work;
1367 struct list_head roc_list;
1368 struct work_struct hw_roc_start, hw_roc_done;
1369 unsigned long hw_roc_start_time;
1370 u64 roc_cookie_counter;
1372 struct idr ack_status_frames;
1373 spinlock_t ack_status_lock;
1375 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1377 /* virtual monitor interface */
1378 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1379 struct cfg80211_chan_def monitor_chandef;
1381 /* extended capabilities provided by mac80211 */
1384 /* TDLS channel switch */
1385 struct work_struct tdls_chsw_work;
1386 struct sk_buff_head skb_queue_tdls_chsw;
1389 static inline struct ieee80211_sub_if_data *
1390 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1392 return netdev_priv(dev);
1395 static inline struct ieee80211_sub_if_data *
1396 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1398 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1401 static inline struct ieee80211_supported_band *
1402 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata)
1404 struct ieee80211_local *local = sdata->local;
1405 struct ieee80211_chanctx_conf *chanctx_conf;
1406 enum nl80211_band band;
1409 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1411 if (WARN_ON(!chanctx_conf)) {
1416 band = chanctx_conf->def.chan->band;
1419 return local->hw.wiphy->bands[band];
1422 /* this struct holds the value parsing from channel switch IE */
1423 struct ieee80211_csa_ie {
1424 struct cfg80211_chan_def chandef;
1432 /* Parsed Information Elements */
1433 struct ieee802_11_elems {
1437 /* pointers to IEs */
1438 const struct ieee80211_tdls_lnkie *lnk_id;
1439 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1440 const u8 *ext_capab;
1442 const u8 *supp_rates;
1443 const u8 *ds_params;
1444 const struct ieee80211_tim_ie *tim;
1445 const u8 *challenge;
1448 const u8 *ext_supp_rates;
1450 const u8 *wmm_param;
1451 const struct ieee80211_ht_cap *ht_cap_elem;
1452 const struct ieee80211_ht_operation *ht_operation;
1453 const struct ieee80211_vht_cap *vht_cap_elem;
1454 const struct ieee80211_vht_operation *vht_operation;
1455 const struct ieee80211_meshconf_ie *mesh_config;
1458 const __le16 *awake_window;
1462 const struct ieee80211_rann_ie *rann;
1463 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1464 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1465 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1466 const u8 *country_elem;
1467 const u8 *pwr_constr_elem;
1468 const u8 *cisco_dtpc_elem;
1469 const struct ieee80211_timeout_interval_ie *timeout_int;
1470 const u8 *opmode_notif;
1471 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1472 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1473 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie;
1475 /* length of them, respectively */
1482 u8 ext_supp_rates_len;
1490 u8 country_elem_len;
1492 /* whether a parse error occurred while retrieving these elements */
1496 static inline struct ieee80211_local *hw_to_local(
1497 struct ieee80211_hw *hw)
1499 return container_of(hw, struct ieee80211_local, hw);
1502 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1504 return container_of(txq, struct txq_info, txq);
1507 static inline bool txq_has_queue(struct ieee80211_txq *txq)
1509 struct txq_info *txqi = to_txq_info(txq);
1511 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets);
1514 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1516 return ether_addr_equal(raddr, addr) ||
1517 is_broadcast_ether_addr(raddr);
1521 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1523 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1524 status->flag & RX_FLAG_MACTIME_END);
1525 if (status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END))
1527 /* can't handle non-legacy preamble yet */
1528 if (status->flag & RX_FLAG_MACTIME_PLCP_START &&
1529 status->encoding == RX_ENC_LEGACY)
1534 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
1535 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
1537 /* This function returns the number of multicast stations connected to this
1538 * interface. It returns -1 if that number is not tracked, that is for netdevs
1539 * not in AP or AP_VLAN mode or when using 4addr.
1542 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
1544 if (sdata->vif.type == NL80211_IFTYPE_AP)
1545 return atomic_read(&sdata->u.ap.num_mcast_sta);
1546 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
1547 return atomic_read(&sdata->u.vlan.num_mcast_sta);
1551 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1552 struct ieee80211_rx_status *status,
1553 unsigned int mpdu_len,
1554 unsigned int mpdu_offset);
1555 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1556 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1557 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1559 void ieee80211_configure_filter(struct ieee80211_local *local);
1560 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1562 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
1563 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1564 u64 *cookie, gfp_t gfp);
1566 void ieee80211_check_fast_rx(struct sta_info *sta);
1567 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1568 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1569 void ieee80211_clear_fast_rx(struct sta_info *sta);
1572 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1573 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1574 struct cfg80211_auth_request *req);
1575 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1576 struct cfg80211_assoc_request *req);
1577 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1578 struct cfg80211_deauth_request *req);
1579 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1580 struct cfg80211_disassoc_request *req);
1581 void ieee80211_send_pspoll(struct ieee80211_local *local,
1582 struct ieee80211_sub_if_data *sdata);
1583 void ieee80211_recalc_ps(struct ieee80211_local *local);
1584 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1585 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1586 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1587 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1588 struct sk_buff *skb);
1589 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1590 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1591 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1592 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1593 __le16 fc, bool acked);
1594 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1595 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1596 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1599 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1600 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1601 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1602 const u8 *bssid, const u8 *addr, u32 supp_rates);
1603 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1604 struct cfg80211_ibss_params *params);
1605 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1606 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1607 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1608 struct sk_buff *skb);
1609 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1610 struct cfg80211_csa_settings *csa_settings);
1611 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
1612 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1615 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1616 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1617 const u8 *bssid, const u8 *addr, u32 supp_rates);
1618 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1619 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1620 struct ocb_setup *setup);
1621 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1624 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1625 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1626 struct sk_buff *skb);
1627 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1628 struct cfg80211_csa_settings *csa_settings);
1629 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
1631 /* scan/BSS handling */
1632 void ieee80211_scan_work(struct work_struct *work);
1633 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1634 const u8 *ssid, u8 ssid_len,
1635 struct ieee80211_channel **channels,
1636 unsigned int n_channels,
1637 enum nl80211_bss_scan_width scan_width);
1638 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1639 struct cfg80211_scan_request *req);
1640 void ieee80211_scan_cancel(struct ieee80211_local *local);
1641 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1642 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1644 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1645 struct ieee80211_bss *
1646 ieee80211_bss_info_update(struct ieee80211_local *local,
1647 struct ieee80211_rx_status *rx_status,
1648 struct ieee80211_mgmt *mgmt,
1650 struct ieee802_11_elems *elems,
1651 struct ieee80211_channel *channel);
1652 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1653 struct ieee80211_bss *bss);
1655 /* scheduled scan handling */
1657 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1658 struct cfg80211_sched_scan_request *req);
1659 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1660 struct cfg80211_sched_scan_request *req);
1661 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
1662 void ieee80211_sched_scan_end(struct ieee80211_local *local);
1663 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1665 /* off-channel/mgmt-tx */
1666 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1667 void ieee80211_offchannel_return(struct ieee80211_local *local);
1668 void ieee80211_roc_setup(struct ieee80211_local *local);
1669 void ieee80211_start_next_roc(struct ieee80211_local *local);
1670 void ieee80211_roc_purge(struct ieee80211_local *local,
1671 struct ieee80211_sub_if_data *sdata);
1672 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
1673 struct ieee80211_channel *chan,
1674 unsigned int duration, u64 *cookie);
1675 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1676 struct wireless_dev *wdev, u64 cookie);
1677 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
1678 struct cfg80211_mgmt_tx_params *params, u64 *cookie);
1679 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1680 struct wireless_dev *wdev, u64 cookie);
1682 /* channel switch handling */
1683 void ieee80211_csa_finalize_work(struct work_struct *work);
1684 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1685 struct cfg80211_csa_settings *params);
1687 /* interface handling */
1688 int ieee80211_iface_init(void);
1689 void ieee80211_iface_exit(void);
1690 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1691 unsigned char name_assign_type,
1692 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1693 struct vif_params *params);
1694 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1695 enum nl80211_iftype type);
1696 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1697 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1698 u32 ieee80211_idle_off(struct ieee80211_local *local);
1699 void ieee80211_recalc_idle(struct ieee80211_local *local);
1700 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1702 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1703 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
1704 int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1705 void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
1707 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1708 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
1711 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1713 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1717 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1718 void ieee80211_tx_pending(unsigned long data);
1719 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1720 struct net_device *dev);
1721 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1722 struct net_device *dev);
1723 void __ieee80211_subif_start_xmit(struct sk_buff *skb,
1724 struct net_device *dev,
1726 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1727 struct sk_buff_head *skbs);
1729 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
1730 struct sk_buff *skb, u32 info_flags);
1731 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
1732 struct ieee80211_supported_band *sband,
1733 int retry_count, int shift, bool send_to_cooked);
1735 void ieee80211_check_fast_xmit(struct sta_info *sta);
1736 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
1737 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
1738 void ieee80211_clear_fast_xmit(struct sta_info *sta);
1739 int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
1740 const u8 *buf, size_t len,
1741 const u8 *dest, __be16 proto, bool unencrypted);
1744 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1745 struct ieee80211_sta_ht_cap *ht_cap);
1746 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1747 struct ieee80211_supported_band *sband,
1748 const struct ieee80211_ht_cap *ht_cap_ie,
1749 struct sta_info *sta);
1750 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1751 const u8 *da, u16 tid,
1752 u16 initiator, u16 reason_code);
1753 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1754 enum ieee80211_smps_mode smps, const u8 *da,
1756 void ieee80211_request_smps_ap_work(struct work_struct *work);
1757 void ieee80211_request_smps_mgd_work(struct work_struct *work);
1758 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
1759 enum ieee80211_smps_mode smps_mode_new);
1761 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1762 u16 initiator, u16 reason, bool stop);
1763 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1764 u16 initiator, u16 reason, bool stop);
1765 void ___ieee80211_start_rx_ba_session(struct sta_info *sta,
1766 u8 dialog_token, u16 timeout,
1767 u16 start_seq_num, u16 ba_policy, u16 tid,
1768 u16 buf_size, bool tx, bool auto_seq);
1769 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1770 enum ieee80211_agg_stop_reason reason);
1771 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1772 struct sta_info *sta,
1773 struct ieee80211_mgmt *mgmt, size_t len);
1774 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1775 struct sta_info *sta,
1776 struct ieee80211_mgmt *mgmt,
1778 void ieee80211_process_addba_request(struct ieee80211_local *local,
1779 struct sta_info *sta,
1780 struct ieee80211_mgmt *mgmt,
1783 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1784 enum ieee80211_agg_stop_reason reason);
1785 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1786 enum ieee80211_agg_stop_reason reason);
1787 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid,
1788 struct tid_ampdu_tx *tid_tx);
1789 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
1790 struct tid_ampdu_tx *tid_tx);
1791 void ieee80211_ba_session_work(struct work_struct *work);
1792 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1793 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1795 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1796 enum nl80211_smps_mode
1797 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps);
1801 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1802 struct ieee80211_supported_band *sband,
1803 const struct ieee80211_vht_cap *vht_cap_ie,
1804 struct sta_info *sta);
1805 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta);
1806 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
1807 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
1808 enum ieee80211_sta_rx_bandwidth
1809 ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
1810 enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta);
1811 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
1812 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
1813 struct ieee80211_mgmt *mgmt);
1814 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1815 struct sta_info *sta, u8 opmode,
1816 enum nl80211_band band);
1817 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1818 struct sta_info *sta, u8 opmode,
1819 enum nl80211_band band);
1820 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
1821 struct ieee80211_sta_vht_cap *vht_cap);
1822 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
1823 u16 vht_mask[NL80211_VHT_NSS_MAX]);
1824 enum nl80211_chan_width
1825 ieee80211_sta_rx_bw_to_chan_width(struct sta_info *sta);
1827 /* Spectrum management */
1828 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1829 struct ieee80211_mgmt *mgmt,
1832 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
1833 * @sdata: the sdata of the interface which has received the frame
1834 * @elems: parsed 802.11 elements received with the frame
1835 * @current_band: indicates the current band
1836 * @sta_flags: contains information about own capabilities and restrictions
1837 * to decide which channel switch announcements can be accepted. Only the
1838 * following subset of &enum ieee80211_sta_flags are evaluated:
1839 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
1840 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
1841 * %IEEE80211_STA_DISABLE_160MHZ.
1842 * @bssid: the currently connected bssid (for reporting)
1843 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
1844 All of them will be filled with if success only.
1845 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
1847 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
1848 struct ieee802_11_elems *elems,
1849 enum nl80211_band current_band,
1850 u32 sta_flags, u8 *bssid,
1851 struct ieee80211_csa_ie *csa_ie);
1853 /* Suspend/resume and hw reconfiguration */
1854 int ieee80211_reconfig(struct ieee80211_local *local);
1855 void ieee80211_stop_device(struct ieee80211_local *local);
1857 int __ieee80211_suspend(struct ieee80211_hw *hw,
1858 struct cfg80211_wowlan *wowlan);
1860 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1862 struct ieee80211_local *local = hw_to_local(hw);
1864 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
1865 !test_bit(SCAN_COMPLETED, &local->scanning),
1866 "%s: resume with hardware scan still in progress\n",
1867 wiphy_name(hw->wiphy));
1869 return ieee80211_reconfig(hw_to_local(hw));
1872 /* utility functions/constants */
1873 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
1874 int ieee80211_frame_duration(enum nl80211_band band, size_t len,
1875 int rate, int erp, int short_preamble,
1877 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
1878 struct ieee80211_tx_queue_params *qparam,
1880 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1881 bool bss_notify, bool enable_qos);
1882 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
1883 struct sta_info *sta, struct sk_buff *skb);
1885 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1886 struct sk_buff *skb, int tid,
1887 enum nl80211_band band);
1890 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1891 struct sk_buff *skb, int tid,
1892 enum nl80211_band band)
1895 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1899 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1900 struct sk_buff *skb, int tid)
1902 struct ieee80211_chanctx_conf *chanctx_conf;
1905 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1906 if (WARN_ON(!chanctx_conf)) {
1912 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
1913 chanctx_conf->def.chan->band);
1917 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
1918 struct sk_buff *skb)
1920 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1921 ieee80211_tx_skb_tid(sdata, skb, 7);
1924 u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
1925 struct ieee802_11_elems *elems,
1926 u64 filter, u32 crc);
1927 static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
1929 struct ieee802_11_elems *elems)
1931 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
1935 extern const int ieee802_1d_to_ac[8];
1937 static inline int ieee80211_ac_from_tid(int tid)
1939 return ieee802_1d_to_ac[tid & 7];
1942 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1943 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1944 void ieee80211_dynamic_ps_timer(struct timer_list *t);
1945 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1946 struct ieee80211_sub_if_data *sdata,
1948 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1949 struct ieee80211_hdr *hdr);
1950 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
1951 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
1953 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1954 unsigned long queues,
1955 enum queue_stop_reason reason,
1957 void ieee80211_stop_vif_queues(struct ieee80211_local *local,
1958 struct ieee80211_sub_if_data *sdata,
1959 enum queue_stop_reason reason);
1960 void ieee80211_wake_vif_queues(struct ieee80211_local *local,
1961 struct ieee80211_sub_if_data *sdata,
1962 enum queue_stop_reason reason);
1963 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1964 unsigned long queues,
1965 enum queue_stop_reason reason,
1967 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1968 enum queue_stop_reason reason,
1970 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1971 enum queue_stop_reason reason,
1973 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
1974 void ieee80211_add_pending_skb(struct ieee80211_local *local,
1975 struct sk_buff *skb);
1976 void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1977 struct sk_buff_head *skbs);
1978 void ieee80211_flush_queues(struct ieee80211_local *local,
1979 struct ieee80211_sub_if_data *sdata, bool drop);
1980 void __ieee80211_flush_queues(struct ieee80211_local *local,
1981 struct ieee80211_sub_if_data *sdata,
1982 unsigned int queues, bool drop);
1984 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
1987 * If quiescing is set, we are racing with __ieee80211_suspend.
1988 * __ieee80211_suspend flushes the workers after setting quiescing,
1989 * and we check quiescing / suspended before enqueing new workers.
1990 * We should abort the worker to avoid the races below.
1992 if (local->quiescing)
1996 * We might already be suspended if the following scenario occurs:
1997 * __ieee80211_suspend Control path
1999 * if (local->quiescing)
2001 * local->quiescing = true;
2002 * flush_workqueue();
2004 * local->suspended = true;
2005 * local->quiescing = false;
2006 * worker starts running...
2008 if (local->suspended)
2014 int ieee80211_txq_setup_flows(struct ieee80211_local *local);
2015 void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
2016 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
2017 struct sta_info *sta,
2018 struct txq_info *txq, int tid);
2019 void ieee80211_txq_purge(struct ieee80211_local *local,
2020 struct txq_info *txqi);
2021 void ieee80211_txq_remove_vlan(struct ieee80211_local *local,
2022 struct ieee80211_sub_if_data *sdata);
2023 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
2024 u16 transaction, u16 auth_alg, u16 status,
2025 const u8 *extra, size_t extra_len, const u8 *bssid,
2026 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
2028 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
2029 const u8 *bssid, u16 stype, u16 reason,
2030 bool send_frame, u8 *frame_buf);
2031 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
2033 struct ieee80211_scan_ies *ie_desc,
2034 const u8 *ie, size_t ie_len,
2035 u8 bands_used, u32 *rate_masks,
2036 struct cfg80211_chan_def *chandef);
2037 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
2038 const u8 *src, const u8 *dst,
2040 struct ieee80211_channel *chan,
2041 const u8 *ssid, size_t ssid_len,
2042 const u8 *ie, size_t ie_len,
2044 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata,
2045 const u8 *src, const u8 *dst,
2046 const u8 *ssid, size_t ssid_len,
2047 const u8 *ie, size_t ie_len,
2048 u32 ratemask, bool directed, u32 tx_flags,
2049 struct ieee80211_channel *channel, bool scan);
2051 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
2052 struct ieee802_11_elems *elems,
2053 enum nl80211_band band, u32 *basic_rates);
2054 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2055 enum ieee80211_smps_mode smps_mode);
2056 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2057 enum ieee80211_smps_mode smps_mode);
2058 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
2059 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
2061 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
2062 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2064 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2065 const struct cfg80211_chan_def *chandef,
2066 u16 prot_mode, bool rifs_mode);
2067 void ieee80211_ie_build_wide_bw_cs(u8 *pos,
2068 const struct cfg80211_chan_def *chandef);
2069 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2071 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2072 const struct cfg80211_chan_def *chandef);
2073 int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
2074 const struct ieee80211_supported_band *sband,
2075 const u8 *srates, int srates_len, u32 *rates);
2076 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
2077 struct sk_buff *skb, bool need_basic,
2078 enum nl80211_band band);
2079 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
2080 struct sk_buff *skb, bool need_basic,
2081 enum nl80211_band band);
2082 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
2084 /* channel management */
2085 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2086 struct cfg80211_chan_def *chandef);
2087 bool ieee80211_chandef_vht_oper(const struct ieee80211_vht_operation *oper,
2088 struct cfg80211_chan_def *chandef);
2089 u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
2092 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
2093 const struct cfg80211_chan_def *chandef,
2094 enum ieee80211_chanctx_mode mode);
2096 ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
2097 const struct cfg80211_chan_def *chandef,
2098 enum ieee80211_chanctx_mode mode,
2099 bool radar_required);
2101 ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata);
2102 int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);
2105 ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
2106 const struct cfg80211_chan_def *chandef,
2108 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
2109 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
2110 void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
2112 int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2113 struct ieee80211_chanctx *ctx);
2115 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2116 struct ieee80211_chanctx *chanctx);
2117 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2118 struct ieee80211_chanctx *ctx);
2119 bool ieee80211_is_radar_required(struct ieee80211_local *local);
2121 void ieee80211_dfs_cac_timer(unsigned long data);
2122 void ieee80211_dfs_cac_timer_work(struct work_struct *work);
2123 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2124 void ieee80211_dfs_radar_detected_work(struct work_struct *work);
2125 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2126 struct cfg80211_csa_settings *csa_settings);
2128 bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs);
2129 bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n);
2130 const struct ieee80211_cipher_scheme *
2131 ieee80211_cs_get(struct ieee80211_local *local, u32 cipher,
2132 enum nl80211_iftype iftype);
2133 int ieee80211_cs_headroom(struct ieee80211_local *local,
2134 struct cfg80211_crypto_settings *crypto,
2135 enum nl80211_iftype iftype);
2136 void ieee80211_recalc_dtim(struct ieee80211_local *local,
2137 struct ieee80211_sub_if_data *sdata);
2138 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2139 const struct cfg80211_chan_def *chandef,
2140 enum ieee80211_chanctx_mode chanmode,
2142 int ieee80211_max_num_channels(struct ieee80211_local *local);
2143 enum nl80211_chan_width ieee80211_get_sta_bw(struct ieee80211_sta *sta);
2144 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2145 struct ieee80211_chanctx *ctx);
2148 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2149 const u8 *peer, u8 action_code, u8 dialog_token,
2150 u16 status_code, u32 peer_capability,
2151 bool initiator, const u8 *extra_ies,
2152 size_t extra_ies_len);
2153 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2154 const u8 *peer, enum nl80211_tdls_operation oper);
2155 void ieee80211_tdls_peer_del_work(struct work_struct *wk);
2156 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2157 const u8 *addr, u8 oper_class,
2158 struct cfg80211_chan_def *chandef);
2159 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2160 struct net_device *dev,
2162 void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
2163 void ieee80211_tdls_chsw_work(struct work_struct *wk);
2165 extern const struct ethtool_ops ieee80211_ethtool_ops;
2167 #ifdef CONFIG_MAC80211_NOINLINE
2168 #define debug_noinline noinline
2170 #define debug_noinline
2173 #endif /* IEEE80211_I_H */