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
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
16 #include <linux/kernel.h>
17 #include <linux/device.h>
18 #include <linux/if_ether.h>
19 #include <linux/interrupt.h>
20 #include <linux/list.h>
21 #include <linux/netdevice.h>
22 #include <linux/skbuff.h>
23 #include <linux/workqueue.h>
24 #include <linux/types.h>
25 #include <linux/spinlock.h>
26 #include <linux/etherdevice.h>
27 #include <linux/leds.h>
28 #include <linux/idr.h>
29 #include <linux/rhashtable.h>
30 #include <net/ieee80211_radiotap.h>
31 #include <net/cfg80211.h>
32 #include <net/mac80211.h>
38 extern const struct cfg80211_ops mac80211_config_ops;
40 struct ieee80211_local;
42 /* Maximum number of broadcast/multicast frames to buffer when some of the
43 * associated stations are using power saving. */
44 #define AP_MAX_BC_BUFFER 128
46 /* Maximum number of frames buffered to all STAs, including multicast frames.
47 * Note: increasing this limit increases the potential memory requirement. Each
48 * frame can be up to about 2 kB long. */
49 #define TOTAL_MAX_TX_BUFFER 512
51 /* Required encryption head and tailroom */
52 #define IEEE80211_ENCRYPT_HEADROOM 8
53 #define IEEE80211_ENCRYPT_TAILROOM 18
55 /* power level hasn't been configured (or set to automatic) */
56 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN
59 * Some APs experience problems when working with U-APSD. Decreasing the
60 * probability of that happening by using legacy mode for all ACs but VO isn't
63 * Cisco 4410N originally forced us to enable VO by default only because it
64 * treated non-VO ACs as legacy.
66 * However some APs (notably Netgear R7000) silently reclassify packets to
67 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval
68 * clients would never see some frames (e.g. ARP responses) or would fetch them
69 * accidentally after a long time.
71 * It makes little sense to enable u-APSD queues by default because it needs
72 * userspace applications to be aware of it to actually take advantage of the
73 * possible additional powersavings. Implicitly depending on driver autotrigger
74 * frame support doesn't make much sense.
76 #define IEEE80211_DEFAULT_UAPSD_QUEUES 0
78 #define IEEE80211_DEFAULT_MAX_SP_LEN \
79 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
81 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
83 #define IEEE80211_MAX_NAN_INSTANCE_ID 255
85 struct ieee80211_bss {
86 u32 device_ts_beacon, device_ts_presp;
91 #define IEEE80211_MAX_SUPP_RATES 32
92 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
93 size_t supp_rates_len;
94 struct ieee80211_rate *beacon_rate;
97 * During association, we save an ERP value from a probe response so
98 * that we can feed ERP info to the driver when handling the
99 * association completes. these fields probably won't be up-to-date
100 * otherwise, you probably don't want to use them.
105 /* Keep track of the corruption of the last beacon/probe response. */
108 /* Keep track of what bits of information we have valid info for. */
113 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
114 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
115 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
117 * These are bss flags that are attached to a bss in the
118 * @corrupt_data field of &struct ieee80211_bss.
120 enum ieee80211_bss_corrupt_data_flags {
121 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
122 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
126 * enum ieee80211_valid_data_flags - BSS valid data flags
127 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
128 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
129 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
131 * These are bss flags that are attached to a bss in the
132 * @valid_data field of &struct ieee80211_bss. They show which parts
133 * of the data structure were received as a result of an un-corrupted
134 * beacon/probe response.
136 enum ieee80211_bss_valid_data_flags {
137 IEEE80211_BSS_VALID_WMM = BIT(1),
138 IEEE80211_BSS_VALID_RATES = BIT(2),
139 IEEE80211_BSS_VALID_ERP = BIT(3)
142 typedef unsigned __bitwise__ ieee80211_tx_result;
143 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
144 #define TX_DROP ((__force ieee80211_tx_result) 1u)
145 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
147 #define IEEE80211_TX_UNICAST BIT(1)
148 #define IEEE80211_TX_PS_BUFFERED BIT(2)
150 struct ieee80211_tx_data {
152 struct sk_buff_head skbs;
153 struct ieee80211_local *local;
154 struct ieee80211_sub_if_data *sdata;
155 struct sta_info *sta;
156 struct ieee80211_key *key;
157 struct ieee80211_tx_rate rate;
163 typedef unsigned __bitwise__ ieee80211_rx_result;
164 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
165 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
166 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
167 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
170 * enum ieee80211_packet_rx_flags - packet RX flags
171 * @IEEE80211_RX_AMSDU: a-MSDU packet
172 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
173 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
175 * These are per-frame flags that are attached to a frame in the
176 * @rx_flags field of &struct ieee80211_rx_status.
178 enum ieee80211_packet_rx_flags {
179 IEEE80211_RX_AMSDU = BIT(3),
180 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
181 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
185 * enum ieee80211_rx_flags - RX data flags
187 * @IEEE80211_RX_CMNTR: received on cooked monitor already
188 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
189 * to cfg80211_report_obss_beacon().
191 * These flags are used across handling multiple interfaces
192 * for a single frame.
194 enum ieee80211_rx_flags {
195 IEEE80211_RX_CMNTR = BIT(0),
196 IEEE80211_RX_BEACON_REPORTED = BIT(1),
199 struct ieee80211_rx_data {
200 struct napi_struct *napi;
202 struct ieee80211_local *local;
203 struct ieee80211_sub_if_data *sdata;
204 struct sta_info *sta;
205 struct ieee80211_key *key;
210 * Index into sequence numbers array, 0..16
211 * since the last (16) is used for non-QoS,
212 * will be 16 on non-QoS frames.
217 * Index into the security IV/PN arrays, 0..16
218 * since the last (16) is used for CCMP-encrypted
219 * management frames, will be set to 16 on mgmt
220 * frames and 0 on non-QoS frames.
230 u8 pn[IEEE80211_CCMP_PN_LEN];
235 struct ieee80211_csa_settings {
236 const u16 *counter_offsets_beacon;
237 const u16 *counter_offsets_presp;
239 int n_counter_offsets_beacon;
240 int n_counter_offsets_presp;
247 int head_len, tail_len;
248 struct ieee80211_meshconf_ie *meshconf;
249 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
250 u8 csa_current_counter;
251 struct rcu_head rcu_head;
255 struct rcu_head rcu_head;
257 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
262 /* yes, this looks ugly, but guarantees that we can later use
264 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
265 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
266 __aligned(__alignof__(unsigned long));
267 struct sk_buff_head bc_buf;
268 atomic_t num_sta_ps; /* number of stations in PS mode */
273 struct ieee80211_if_ap {
274 struct beacon_data __rcu *beacon;
275 struct probe_resp __rcu *probe_resp;
277 /* to be used after channel switch. */
278 struct cfg80211_beacon_data *next_beacon;
279 struct list_head vlans; /* write-protected with RTNL and local->mtx */
282 atomic_t num_mcast_sta; /* number of stations receiving multicast */
283 enum ieee80211_smps_mode req_smps, /* requested smps mode */
284 driver_smps_mode; /* smps mode request */
286 struct work_struct request_smps_work;
289 struct ieee80211_if_wds {
290 struct sta_info *sta;
291 u8 remote_addr[ETH_ALEN];
294 struct ieee80211_if_vlan {
295 struct list_head list; /* write-protected with RTNL and local->mtx */
297 /* used for all tx if the VLAN is configured to 4-addr mode */
298 struct sta_info __rcu *sta;
302 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
303 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
304 __u32 fwded_frames; /* Mesh total forwarded frames */
305 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
306 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
307 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
310 #define PREQ_Q_F_START 0x1
311 #define PREQ_Q_F_REFRESH 0x2
312 struct mesh_preq_queue {
313 struct list_head list;
318 struct ieee80211_roc_work {
319 struct list_head list;
321 struct ieee80211_sub_if_data *sdata;
323 struct ieee80211_channel *chan;
325 bool started, abort, hw_begun, notified;
328 unsigned long start_time;
330 u32 duration, req_duration;
331 struct sk_buff *frame;
332 u64 cookie, mgmt_tx_cookie;
333 enum ieee80211_roc_type type;
336 /* flags used in struct ieee80211_if_managed.flags */
337 enum ieee80211_sta_flags {
338 IEEE80211_STA_CONNECTION_POLL = BIT(1),
339 IEEE80211_STA_CONTROL_PORT = BIT(2),
340 IEEE80211_STA_DISABLE_HT = BIT(4),
341 IEEE80211_STA_MFP_ENABLED = BIT(6),
342 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
343 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
344 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
345 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
346 IEEE80211_STA_DISABLE_VHT = BIT(11),
347 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
348 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
349 IEEE80211_STA_DISABLE_WMM = BIT(14),
350 IEEE80211_STA_ENABLE_RRM = BIT(15),
353 struct ieee80211_mgd_auth_data {
354 struct cfg80211_bss *bss;
355 unsigned long timeout;
357 u16 algorithm, expected_transaction;
359 u8 key[WLAN_KEY_LEN_WEP104];
362 bool timeout_started;
364 u16 sae_trans, sae_status;
369 struct ieee80211_mgd_assoc_data {
370 struct cfg80211_bss *bss;
371 const u8 *supp_rates;
373 unsigned long timeout;
377 u8 prev_bssid[ETH_ALEN];
378 u8 ssid[IEEE80211_MAX_SSID_LEN];
384 bool timeout_started;
388 struct ieee80211_vht_cap ap_vht_cap;
394 struct ieee80211_sta_tx_tspec {
395 /* timestamp of the first packet in the time slice */
396 unsigned long time_slice_start;
398 u32 admitted_time; /* in usecs, unlike over the air */
400 s8 up; /* signed to be able to invalidate with -1 during teardown */
402 /* consumed TX time in microseconds in the time slice */
403 u32 consumed_tx_time;
405 TX_TSPEC_ACTION_NONE = 0,
406 TX_TSPEC_ACTION_DOWNGRADE,
407 TX_TSPEC_ACTION_STOP_DOWNGRADE,
412 DECLARE_EWMA(beacon_signal, 16, 4)
414 struct ieee80211_if_managed {
415 struct timer_list timer;
416 struct timer_list conn_mon_timer;
417 struct timer_list bcn_mon_timer;
418 struct timer_list chswitch_timer;
419 struct work_struct monitor_work;
420 struct work_struct chswitch_work;
421 struct work_struct beacon_connection_loss_work;
422 struct work_struct csa_connection_drop_work;
424 unsigned long beacon_timeout;
425 unsigned long probe_timeout;
426 int probe_send_count;
427 bool nullfunc_failed;
428 bool connection_loss;
430 struct cfg80211_bss *associated;
431 struct ieee80211_mgd_auth_data *auth_data;
432 struct ieee80211_mgd_assoc_data *assoc_data;
438 bool powersave; /* powersave requested for this iface */
439 bool broken_ap; /* AP is broken -- turn off powersave */
442 enum ieee80211_smps_mode req_smps, /* requested smps mode */
443 driver_smps_mode; /* smps mode request */
445 struct work_struct request_smps_work;
449 bool csa_waiting_bcn;
450 bool csa_ignored_same_chan;
452 bool beacon_crc_valid;
456 bool status_received;
460 IEEE80211_MFP_DISABLED,
461 IEEE80211_MFP_OPTIONAL,
462 IEEE80211_MFP_REQUIRED
463 } mfp; /* management frame protection */
466 * Bitmask of enabled u-apsd queues,
467 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
470 unsigned int uapsd_queues;
473 * Maximum number of buffered frames AP can deliver during a
474 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
475 * Needs a new association to take effect.
477 unsigned int uapsd_max_sp_len;
479 int wmm_last_param_set;
485 struct ewma_beacon_signal ave_beacon_signal;
488 * Number of Beacon frames used in ave_beacon_signal. This can be used
489 * to avoid generating less reliable cqm events that would be based
490 * only on couple of received frames.
492 unsigned int count_beacon_signal;
494 /* Number of times beacon loss was invoked. */
495 unsigned int beacon_loss_count;
498 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
499 * that triggered a cqm event. 0 indicates that no event has been
500 * generated for the current association.
502 int last_cqm_event_signal;
505 * State variables for keeping track of RSSI of the AP currently
506 * connected to and informing driver when RSSI has gone
507 * below/above a certain threshold.
509 int rssi_min_thold, rssi_max_thold;
510 int last_ave_beacon_signal;
512 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
513 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
514 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
515 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
518 u8 tdls_peer[ETH_ALEN] __aligned(2);
519 struct delayed_work tdls_peer_del_work;
520 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
521 struct sk_buff *teardown_skb; /* A copy to send through the AP */
522 spinlock_t teardown_lock; /* To lock changing teardown_skb */
523 bool tdls_chan_switch_prohibited;
524 bool tdls_wider_bw_prohibited;
526 /* WMM-AC TSPEC support */
527 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
528 /* Use a separate work struct so that we can do something here
529 * while the sdata->work is flushing the queues, for example.
530 * otherwise, in scenarios where we hardly get any traffic out
531 * on the BE queue, but there's a lot of VO traffic, we might
532 * get stuck in a downgraded situation and flush takes forever.
534 struct delayed_work tx_tspec_wk;
537 struct ieee80211_if_ibss {
538 struct timer_list timer;
539 struct work_struct csa_connection_drop_work;
541 unsigned long last_scan_completed;
550 bool userspace_handles_dfs;
552 u8 bssid[ETH_ALEN] __aligned(2);
553 u8 ssid[IEEE80211_MAX_SSID_LEN];
556 struct cfg80211_chan_def chandef;
558 unsigned long ibss_join_req;
559 /* probe response/beacon for IBSS */
560 struct beacon_data __rcu *presp;
562 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
563 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
565 spinlock_t incomplete_lock;
566 struct list_head incomplete_stations;
569 IEEE80211_IBSS_MLME_SEARCH,
570 IEEE80211_IBSS_MLME_JOINED,
575 * struct ieee80211_if_ocb - OCB mode state
577 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
578 * @wrkq_flags: OCB deferred task action
579 * @incomplete_lock: delayed STA insertion lock
580 * @incomplete_stations: list of STAs waiting for delayed insertion
581 * @joined: indication if the interface is connected to an OCB network
583 struct ieee80211_if_ocb {
584 struct timer_list housekeeping_timer;
585 unsigned long wrkq_flags;
587 spinlock_t incomplete_lock;
588 struct list_head incomplete_stations;
594 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
596 * these declarations define the interface, which enables
597 * vendor-specific mesh synchronization
600 struct ieee802_11_elems;
601 struct ieee80211_mesh_sync_ops {
602 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
604 struct ieee80211_mgmt *mgmt,
605 struct ieee802_11_elems *elems,
606 struct ieee80211_rx_status *rx_status);
608 /* should be called with beacon_data under RCU read lock */
609 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata,
610 struct beacon_data *beacon);
611 /* add other framework functions here */
614 struct mesh_csa_settings {
615 struct rcu_head rcu_head;
616 struct cfg80211_csa_settings settings;
619 struct ieee80211_if_mesh {
620 struct timer_list housekeeping_timer;
621 struct timer_list mesh_path_timer;
622 struct timer_list mesh_path_root_timer;
624 unsigned long wrkq_flags;
625 unsigned long mbss_changed;
627 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
629 /* Active Path Selection Protocol Identifier */
631 /* Active Path Selection Metric Identifier */
633 /* Congestion Control Mode Identifier */
635 /* Synchronization Protocol Identifier */
637 /* Authentication Protocol Identifier */
639 /* Local mesh Sequence Number */
641 /* Last used PREQ ID */
644 /* Timestamp of last SN update */
645 unsigned long last_sn_update;
646 /* Time when it's ok to send next PERR */
647 unsigned long next_perr;
648 /* Timestamp of last PREQ sent */
649 unsigned long last_preq;
650 struct mesh_rmc *rmc;
651 spinlock_t mesh_preq_queue_lock;
652 struct mesh_preq_queue preq_queue;
654 struct mesh_stats mshstats;
655 struct mesh_config mshcfg;
656 atomic_t estab_plinks;
658 bool accepting_plinks;
660 struct beacon_data __rcu *beacon;
664 IEEE80211_MESH_SEC_NONE = 0x0,
665 IEEE80211_MESH_SEC_AUTHED = 0x1,
666 IEEE80211_MESH_SEC_SECURED = 0x2,
669 /* Extensible Synchronization Framework */
670 const struct ieee80211_mesh_sync_ops *sync_ops;
671 s64 sync_offset_clockdrift_max;
672 spinlock_t sync_offset_lock;
673 /* mesh power save */
674 enum nl80211_mesh_power_mode nonpeer_pm;
675 int ps_peers_light_sleep;
676 int ps_peers_deep_sleep;
678 /* Channel Switching Support */
679 struct mesh_csa_settings __rcu *csa;
681 IEEE80211_MESH_CSA_ROLE_NONE,
682 IEEE80211_MESH_CSA_ROLE_INIT,
683 IEEE80211_MESH_CSA_ROLE_REPEATER,
688 /* offset from skb->data while building IE */
691 struct mesh_table *mesh_paths;
692 struct mesh_table *mpp_paths; /* Store paths for MPP&MAP */
693 int mesh_paths_generation;
694 int mpp_paths_generation;
697 #ifdef CONFIG_MAC80211_MESH
698 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
699 do { (msh)->mshstats.name++; } while (0)
701 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
706 * enum ieee80211_sub_if_data_flags - virtual interface flags
708 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
709 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
710 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
711 * associated stations and deliver multicast frames both
712 * back to wireless media and to the local net stack.
713 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
714 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
716 enum ieee80211_sub_if_data_flags {
717 IEEE80211_SDATA_ALLMULTI = BIT(0),
718 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
719 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
720 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
721 IEEE80211_SDATA_IN_DRIVER = BIT(5),
725 * enum ieee80211_sdata_state_bits - virtual interface state bits
726 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
727 * mirrors netif_running() but is separate for interface type
728 * change handling while the interface is up
729 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
730 * mode, so queues are stopped
731 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
732 * to offchannel, reset when offchannel returns
734 enum ieee80211_sdata_state_bits {
736 SDATA_STATE_OFFCHANNEL,
737 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
741 * enum ieee80211_chanctx_mode - channel context configuration mode
743 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
744 * multiple interfaces
745 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
746 * only by a single interface. This can be used for example for
747 * non-fixed channel IBSS.
749 enum ieee80211_chanctx_mode {
750 IEEE80211_CHANCTX_SHARED,
751 IEEE80211_CHANCTX_EXCLUSIVE
755 * enum ieee80211_chanctx_replace_state - channel context replacement state
757 * This is used for channel context in-place reservations that require channel
758 * context switch/swap.
760 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
761 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
762 * by a (not yet registered) channel context pointed by %replace_ctx.
763 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
764 * replaces an existing channel context pointed to by %replace_ctx.
766 enum ieee80211_chanctx_replace_state {
767 IEEE80211_CHANCTX_REPLACE_NONE,
768 IEEE80211_CHANCTX_WILL_BE_REPLACED,
769 IEEE80211_CHANCTX_REPLACES_OTHER,
772 struct ieee80211_chanctx {
773 struct list_head list;
774 struct rcu_head rcu_head;
776 struct list_head assigned_vifs;
777 struct list_head reserved_vifs;
779 enum ieee80211_chanctx_replace_state replace_state;
780 struct ieee80211_chanctx *replace_ctx;
782 enum ieee80211_chanctx_mode mode;
785 struct ieee80211_chanctx_conf conf;
788 struct mac80211_qos_map {
789 struct cfg80211_qos_map qos_map;
790 struct rcu_head rcu_head;
793 enum txq_info_flags {
796 IEEE80211_TXQ_NO_AMSDU,
800 * struct txq_info - per tid queue
802 * @tin: contains packets split into multiple flows
803 * @def_flow: used as a fallback flow when a packet destined to @tin hashes to
804 * a fq_flow which is already owned by a different tin
805 * @def_cvars: codel vars for @def_flow
806 * @frags: used to keep fragments created after dequeue
810 struct fq_flow def_flow;
811 struct codel_vars def_cvars;
812 struct codel_stats cstats;
813 struct sk_buff_head frags;
817 struct ieee80211_txq txq;
820 struct ieee80211_if_mntr {
822 u8 mu_follow_addr[ETH_ALEN] __aligned(2);
826 * struct ieee80211_if_nan - NAN state
828 * @conf: current NAN configuration
829 * @func_ids: a bitmap of available instance_id's
831 struct ieee80211_if_nan {
832 struct cfg80211_nan_conf conf;
834 /* protects function_inst_ids */
835 spinlock_t func_lock;
836 struct idr function_inst_ids;
839 struct ieee80211_sub_if_data {
840 struct list_head list;
842 struct wireless_dev wdev;
845 struct list_head key_list;
847 /* count for keys needing tailroom space allocation */
848 int crypto_tx_tailroom_needed_cnt;
849 int crypto_tx_tailroom_pending_dec;
850 struct delayed_work dec_tailroom_needed_wk;
852 struct net_device *dev;
853 struct ieee80211_local *local;
861 struct ieee80211_fragment_cache frags;
863 /* TID bitmap for NoAck policy */
866 /* bit field of ACM bits (BIT(802.1D tag)) */
869 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
870 struct ieee80211_key __rcu *default_unicast_key;
871 struct ieee80211_key __rcu *default_multicast_key;
872 struct ieee80211_key __rcu *default_mgmt_key;
875 __be16 control_port_protocol;
876 bool control_port_no_encrypt;
877 int encrypt_headroom;
879 atomic_t num_tx_queued;
880 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
881 struct mac80211_qos_map __rcu *qos_map;
883 struct work_struct csa_finalize_work;
884 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
885 struct cfg80211_chan_def csa_chandef;
887 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
888 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
890 /* context reservation -- protected with chanctx_mtx */
891 struct ieee80211_chanctx *reserved_chanctx;
892 struct cfg80211_chan_def reserved_chandef;
893 bool reserved_radar_required;
896 /* used to reconfigure hardware SM PS */
897 struct work_struct recalc_smps;
899 struct work_struct work;
900 struct sk_buff_head skb_queue;
903 enum ieee80211_smps_mode smps_mode;
905 int user_power_level; /* in dBm */
906 int ap_power_level; /* in dBm */
909 struct delayed_work dfs_cac_timer_work;
912 * AP this belongs to: self in AP mode and
913 * corresponding AP in VLAN mode, NULL for
914 * all others (might be needed later in IBSS)
916 struct ieee80211_if_ap *bss;
918 /* bitmap of allowed (non-MCS) rate indexes for rate control */
919 u32 rc_rateidx_mask[NUM_NL80211_BANDS];
921 bool rc_has_mcs_mask[NUM_NL80211_BANDS];
922 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
924 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
925 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
928 struct ieee80211_if_ap ap;
929 struct ieee80211_if_wds wds;
930 struct ieee80211_if_vlan vlan;
931 struct ieee80211_if_managed mgd;
932 struct ieee80211_if_ibss ibss;
933 struct ieee80211_if_mesh mesh;
934 struct ieee80211_if_ocb ocb;
935 struct ieee80211_if_mntr mntr;
936 struct ieee80211_if_nan nan;
939 #ifdef CONFIG_MAC80211_DEBUGFS
941 struct dentry *subdir_stations;
942 struct dentry *default_unicast_key;
943 struct dentry *default_multicast_key;
944 struct dentry *default_mgmt_key;
948 /* must be last, dynamically sized area in this! */
949 struct ieee80211_vif vif;
953 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
955 return container_of(p, struct ieee80211_sub_if_data, vif);
958 static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
959 __acquires(&sdata->wdev.mtx)
961 mutex_lock(&sdata->wdev.mtx);
962 __acquire(&sdata->wdev.mtx);
965 static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
966 __releases(&sdata->wdev.mtx)
968 mutex_unlock(&sdata->wdev.mtx);
969 __release(&sdata->wdev.mtx);
972 #define sdata_dereference(p, sdata) \
973 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
976 sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
978 lockdep_assert_held(&sdata->wdev.mtx);
982 ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
984 switch (chandef->width) {
985 case NL80211_CHAN_WIDTH_5:
987 case NL80211_CHAN_WIDTH_10:
995 ieee80211_vif_get_shift(struct ieee80211_vif *vif)
997 struct ieee80211_chanctx_conf *chanctx_conf;
1001 chanctx_conf = rcu_dereference(vif->chanctx_conf);
1003 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
1009 struct ieee80211_rx_agg {
1014 enum sdata_queue_type {
1015 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
1016 IEEE80211_SDATA_QUEUE_RX_AGG_START = 3,
1017 IEEE80211_SDATA_QUEUE_RX_AGG_STOP = 4,
1021 IEEE80211_RX_MSG = 1,
1022 IEEE80211_TX_STATUS_MSG = 2,
1025 enum queue_stop_reason {
1026 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1027 IEEE80211_QUEUE_STOP_REASON_PS,
1028 IEEE80211_QUEUE_STOP_REASON_CSA,
1029 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1030 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1031 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1032 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1033 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1034 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1035 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1036 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE,
1038 IEEE80211_QUEUE_STOP_REASONS,
1041 #ifdef CONFIG_MAC80211_LEDS
1042 struct tpt_led_trigger {
1044 const struct ieee80211_tpt_blink *blink_table;
1045 unsigned int blink_table_len;
1046 struct timer_list timer;
1047 unsigned long prev_traffic;
1048 unsigned long tx_bytes, rx_bytes;
1049 unsigned int active, want;
1055 * mac80211 scan flags - currently active scan mode
1057 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1058 * well be on the operating channel
1059 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1060 * determine if we are on the operating channel or not
1061 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1062 * channel. This should not interrupt normal traffic.
1063 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1064 * that the scan completed.
1065 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1066 * a scan complete for an aborted scan.
1067 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1073 SCAN_ONCHANNEL_SCANNING,
1080 * enum mac80211_scan_state - scan state machine states
1082 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1083 * determines if we should keep on scanning or switch back to the
1085 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1086 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1087 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1089 * @SCAN_RESUME: Resume the scan and scan the next channel
1090 * @SCAN_ABORT: Abort the scan and go back to operating channel
1092 enum mac80211_scan_state {
1101 struct ieee80211_local {
1102 /* embed the driver visible part.
1103 * don't cast (use the static inlines below), but we keep
1104 * it first anyway so they become a no-op */
1105 struct ieee80211_hw hw;
1108 struct codel_vars *cvars;
1109 struct codel_params cparams;
1111 const struct ieee80211_ops *ops;
1114 * private workqueue to mac80211. mac80211 makes this accessible
1115 * via ieee80211_queue_work()
1117 struct workqueue_struct *workqueue;
1119 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1120 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1121 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1122 spinlock_t queue_stop_reason_lock;
1125 int monitors, cooked_mntrs;
1126 /* number of interfaces with corresponding FIF_ flags */
1127 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1130 unsigned int filter_flags; /* FIF_* */
1132 bool wiphy_ciphers_allocated;
1136 /* protects the aggregated multicast list and filter calls */
1137 spinlock_t filter_lock;
1139 /* used for uploading changed mc list */
1140 struct work_struct reconfig_filter;
1142 /* aggregated multicast list */
1143 struct netdev_hw_addr_list mc_list;
1145 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1148 * suspended is true if we finished all the suspend _and_ we have
1149 * not yet come up from resume. This is to be used by mac80211
1150 * to ensure driver sanity during suspend and mac80211's own
1151 * sanity. It can eventually be used for WoW as well.
1156 * Resuming is true while suspended, but when we're reprogramming the
1157 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1158 * again even though some other parts of the stack are still suspended
1159 * and we still drop received frames to avoid waking the stack.
1164 * quiescing is true during the suspend process _only_ to
1165 * ease timer cancelling etc.
1169 /* device is started */
1172 /* device is during a HW reconfig */
1175 /* wowlan is enabled -- don't reconfig on resume */
1178 struct work_struct radar_detected_work;
1180 /* number of RX chains the hardware has */
1183 int tx_headroom; /* required headroom for hardware/radiotap */
1185 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1186 * added to skb_queue will be processed, but frames in
1187 * skb_queue_unreliable may be dropped if the total length of these
1188 * queues increases over the limit. */
1189 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1190 struct tasklet_struct tasklet;
1191 struct sk_buff_head skb_queue;
1192 struct sk_buff_head skb_queue_unreliable;
1194 spinlock_t rx_path_lock;
1198 * The mutex only protects the list, hash table and
1199 * counter, reads are done with RCU.
1201 struct mutex sta_mtx;
1202 spinlock_t tim_lock;
1203 unsigned long num_sta;
1204 struct list_head sta_list;
1205 struct rhltable sta_hash;
1206 struct timer_list sta_cleanup;
1209 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1210 struct tasklet_struct tx_pending_tasklet;
1212 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1214 /* number of interfaces with allmulti RX */
1215 atomic_t iff_allmultis;
1217 struct rate_control_ref *rate_ctrl;
1219 struct crypto_cipher *wep_tx_tfm;
1220 struct crypto_cipher *wep_rx_tfm;
1224 struct list_head interfaces;
1225 struct mutex iflist_mtx;
1228 * Key mutex, protects sdata's key_list and sta_info's
1229 * key pointers (write access, they're RCU.)
1231 struct mutex key_mtx;
1233 /* mutex for scan and work locking */
1236 /* Scanning and BSS list */
1237 unsigned long scanning;
1238 struct cfg80211_ssid scan_ssid;
1239 struct cfg80211_scan_request *int_scan_req;
1240 struct cfg80211_scan_request __rcu *scan_req;
1241 struct ieee80211_scan_request *hw_scan_req;
1242 struct cfg80211_chan_def scan_chandef;
1243 enum nl80211_band hw_scan_band;
1244 int scan_channel_idx;
1246 int hw_scan_ies_bufsize;
1247 struct cfg80211_scan_info scan_info;
1249 struct work_struct sched_scan_stopped_work;
1250 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1251 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1252 u8 scan_addr[ETH_ALEN];
1254 unsigned long leave_oper_channel_time;
1255 enum mac80211_scan_state next_scan_state;
1256 struct delayed_work scan_work;
1257 struct ieee80211_sub_if_data __rcu *scan_sdata;
1258 /* For backward compatibility only -- do not use */
1259 struct cfg80211_chan_def _oper_chandef;
1261 /* Temporary remain-on-channel for off-channel operations */
1262 struct ieee80211_channel *tmp_channel;
1264 /* channel contexts */
1265 struct list_head chanctx_list;
1266 struct mutex chanctx_mtx;
1268 #ifdef CONFIG_MAC80211_LEDS
1269 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1270 struct led_trigger tpt_led;
1271 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1272 atomic_t radio_led_active, tpt_led_active;
1273 struct tpt_led_trigger *tpt_led_trigger;
1276 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1278 /* dot11CountersTable */
1279 u32 dot11TransmittedFragmentCount;
1280 u32 dot11MulticastTransmittedFrameCount;
1281 u32 dot11FailedCount;
1282 u32 dot11RetryCount;
1283 u32 dot11MultipleRetryCount;
1284 u32 dot11FrameDuplicateCount;
1285 u32 dot11ReceivedFragmentCount;
1286 u32 dot11MulticastReceivedFrameCount;
1287 u32 dot11TransmittedFrameCount;
1289 /* TX/RX handler statistics */
1290 unsigned int tx_handlers_drop;
1291 unsigned int tx_handlers_queued;
1292 unsigned int tx_handlers_drop_wep;
1293 unsigned int tx_handlers_drop_not_assoc;
1294 unsigned int tx_handlers_drop_unauth_port;
1295 unsigned int rx_handlers_drop;
1296 unsigned int rx_handlers_queued;
1297 unsigned int rx_handlers_drop_nullfunc;
1298 unsigned int rx_handlers_drop_defrag;
1299 unsigned int tx_expand_skb_head;
1300 unsigned int tx_expand_skb_head_cloned;
1301 unsigned int rx_expand_skb_head_defrag;
1302 unsigned int rx_handlers_fragments;
1303 unsigned int tx_status_drop;
1304 #define I802_DEBUG_INC(c) (c)++
1305 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1306 #define I802_DEBUG_INC(c) do { } while (0)
1307 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1310 int total_ps_buffered; /* total number of all buffered unicast and
1311 * multicast packets for power saving stations
1315 bool offchannel_ps_enabled;
1317 * PS can only be enabled when we have exactly one managed
1318 * interface (and monitors) in PS, this then points there.
1320 struct ieee80211_sub_if_data *ps_sdata;
1321 struct work_struct dynamic_ps_enable_work;
1322 struct work_struct dynamic_ps_disable_work;
1323 struct timer_list dynamic_ps_timer;
1324 struct notifier_block ifa_notifier;
1325 struct notifier_block ifa6_notifier;
1328 * The dynamic ps timeout configured from user space via WEXT -
1329 * this will override whatever chosen by mac80211 internally.
1331 int dynamic_ps_forced_timeout;
1333 int user_power_level; /* in dBm, for all interfaces */
1335 enum ieee80211_smps_mode smps_mode;
1337 struct work_struct restart_work;
1339 #ifdef CONFIG_MAC80211_DEBUGFS
1340 struct local_debugfsdentries {
1341 struct dentry *rcdir;
1342 struct dentry *keys;
1347 * Remain-on-channel support
1349 struct delayed_work roc_work;
1350 struct list_head roc_list;
1351 struct work_struct hw_roc_start, hw_roc_done;
1352 unsigned long hw_roc_start_time;
1353 u64 roc_cookie_counter;
1355 struct idr ack_status_frames;
1356 spinlock_t ack_status_lock;
1358 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1360 /* virtual monitor interface */
1361 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1362 struct cfg80211_chan_def monitor_chandef;
1364 /* extended capabilities provided by mac80211 */
1367 /* TDLS channel switch */
1368 struct work_struct tdls_chsw_work;
1369 struct sk_buff_head skb_queue_tdls_chsw;
1372 static inline struct ieee80211_sub_if_data *
1373 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1375 return netdev_priv(dev);
1378 static inline struct ieee80211_sub_if_data *
1379 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1381 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1384 static inline struct ieee80211_supported_band *
1385 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata)
1387 struct ieee80211_local *local = sdata->local;
1388 struct ieee80211_chanctx_conf *chanctx_conf;
1389 enum nl80211_band band;
1392 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1394 if (!chanctx_conf) {
1399 band = chanctx_conf->def.chan->band;
1402 return local->hw.wiphy->bands[band];
1405 /* this struct holds the value parsing from channel switch IE */
1406 struct ieee80211_csa_ie {
1407 struct cfg80211_chan_def chandef;
1414 /* Parsed Information Elements */
1415 struct ieee802_11_elems {
1419 /* pointers to IEs */
1420 const struct ieee80211_tdls_lnkie *lnk_id;
1421 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1422 const u8 *ext_capab;
1424 const u8 *supp_rates;
1425 const u8 *ds_params;
1426 const struct ieee80211_tim_ie *tim;
1427 const u8 *challenge;
1430 const u8 *ext_supp_rates;
1432 const u8 *wmm_param;
1433 const struct ieee80211_ht_cap *ht_cap_elem;
1434 const struct ieee80211_ht_operation *ht_operation;
1435 const struct ieee80211_vht_cap *vht_cap_elem;
1436 const struct ieee80211_vht_operation *vht_operation;
1437 const struct ieee80211_meshconf_ie *mesh_config;
1440 const __le16 *awake_window;
1444 const struct ieee80211_rann_ie *rann;
1445 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1446 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1447 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1448 const u8 *country_elem;
1449 const u8 *pwr_constr_elem;
1450 const u8 *cisco_dtpc_elem;
1451 const struct ieee80211_timeout_interval_ie *timeout_int;
1452 const u8 *opmode_notif;
1453 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1454 const struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1456 /* length of them, respectively */
1463 u8 ext_supp_rates_len;
1471 u8 country_elem_len;
1473 /* whether a parse error occurred while retrieving these elements */
1477 static inline struct ieee80211_local *hw_to_local(
1478 struct ieee80211_hw *hw)
1480 return container_of(hw, struct ieee80211_local, hw);
1483 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1485 return container_of(txq, struct txq_info, txq);
1488 static inline bool txq_has_queue(struct ieee80211_txq *txq)
1490 struct txq_info *txqi = to_txq_info(txq);
1492 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets);
1495 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1497 return ether_addr_equal(raddr, addr) ||
1498 is_broadcast_ether_addr(raddr);
1502 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1504 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1505 status->flag & RX_FLAG_MACTIME_END);
1506 if (status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END))
1508 /* can't handle HT/VHT preamble yet */
1509 if (status->flag & RX_FLAG_MACTIME_PLCP_START &&
1510 !(status->flag & (RX_FLAG_HT | RX_FLAG_VHT)))
1515 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1516 struct ieee80211_rx_status *status,
1517 unsigned int mpdu_len,
1518 unsigned int mpdu_offset);
1519 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1520 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1521 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1523 void ieee80211_configure_filter(struct ieee80211_local *local);
1524 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1526 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
1527 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1528 u64 *cookie, gfp_t gfp);
1530 void ieee80211_check_fast_rx(struct sta_info *sta);
1531 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1532 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1533 void ieee80211_clear_fast_rx(struct sta_info *sta);
1536 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1537 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1538 struct cfg80211_auth_request *req);
1539 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1540 struct cfg80211_assoc_request *req);
1541 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1542 struct cfg80211_deauth_request *req);
1543 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1544 struct cfg80211_disassoc_request *req);
1545 void ieee80211_send_pspoll(struct ieee80211_local *local,
1546 struct ieee80211_sub_if_data *sdata);
1547 void ieee80211_recalc_ps(struct ieee80211_local *local);
1548 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1549 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1550 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1551 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1552 struct sk_buff *skb);
1553 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1554 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1555 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1556 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1557 __le16 fc, bool acked);
1558 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1559 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1560 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1563 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1564 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1565 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1566 const u8 *bssid, const u8 *addr, u32 supp_rates);
1567 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1568 struct cfg80211_ibss_params *params);
1569 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1570 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1571 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1572 struct sk_buff *skb);
1573 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1574 struct cfg80211_csa_settings *csa_settings);
1575 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
1576 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1579 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1580 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1581 const u8 *bssid, const u8 *addr, u32 supp_rates);
1582 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1583 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1584 struct ocb_setup *setup);
1585 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1588 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1589 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1590 struct sk_buff *skb);
1591 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1592 struct cfg80211_csa_settings *csa_settings);
1593 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
1595 /* scan/BSS handling */
1596 void ieee80211_scan_work(struct work_struct *work);
1597 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1598 const u8 *ssid, u8 ssid_len,
1599 struct ieee80211_channel **channels,
1600 unsigned int n_channels,
1601 enum nl80211_bss_scan_width scan_width);
1602 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1603 struct cfg80211_scan_request *req);
1604 void ieee80211_scan_cancel(struct ieee80211_local *local);
1605 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1606 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1608 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1609 struct ieee80211_bss *
1610 ieee80211_bss_info_update(struct ieee80211_local *local,
1611 struct ieee80211_rx_status *rx_status,
1612 struct ieee80211_mgmt *mgmt,
1614 struct ieee802_11_elems *elems,
1615 struct ieee80211_channel *channel);
1616 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1617 struct ieee80211_bss *bss);
1619 /* scheduled scan handling */
1621 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1622 struct cfg80211_sched_scan_request *req);
1623 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1624 struct cfg80211_sched_scan_request *req);
1625 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
1626 void ieee80211_sched_scan_end(struct ieee80211_local *local);
1627 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1629 /* off-channel/mgmt-tx */
1630 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1631 void ieee80211_offchannel_return(struct ieee80211_local *local);
1632 void ieee80211_roc_setup(struct ieee80211_local *local);
1633 void ieee80211_start_next_roc(struct ieee80211_local *local);
1634 void ieee80211_roc_purge(struct ieee80211_local *local,
1635 struct ieee80211_sub_if_data *sdata);
1636 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
1637 struct ieee80211_channel *chan,
1638 unsigned int duration, u64 *cookie);
1639 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1640 struct wireless_dev *wdev, u64 cookie);
1641 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
1642 struct cfg80211_mgmt_tx_params *params, u64 *cookie);
1643 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1644 struct wireless_dev *wdev, u64 cookie);
1646 /* channel switch handling */
1647 void ieee80211_csa_finalize_work(struct work_struct *work);
1648 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1649 struct cfg80211_csa_settings *params);
1651 /* interface handling */
1652 int ieee80211_iface_init(void);
1653 void ieee80211_iface_exit(void);
1654 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1655 unsigned char name_assign_type,
1656 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1657 struct vif_params *params);
1658 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1659 enum nl80211_iftype type);
1660 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1661 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1662 u32 ieee80211_idle_off(struct ieee80211_local *local);
1663 void ieee80211_recalc_idle(struct ieee80211_local *local);
1664 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1666 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1667 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
1668 int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1669 void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
1671 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1672 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
1675 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1677 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1681 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1682 void ieee80211_tx_pending(unsigned long data);
1683 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1684 struct net_device *dev);
1685 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1686 struct net_device *dev);
1687 void __ieee80211_subif_start_xmit(struct sk_buff *skb,
1688 struct net_device *dev,
1690 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1691 struct sk_buff_head *skbs);
1693 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
1694 struct sk_buff *skb, u32 info_flags);
1695 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
1696 struct ieee80211_supported_band *sband,
1697 int retry_count, int shift, bool send_to_cooked);
1699 void ieee80211_check_fast_xmit(struct sta_info *sta);
1700 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
1701 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
1702 void ieee80211_clear_fast_xmit(struct sta_info *sta);
1705 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1706 struct ieee80211_sta_ht_cap *ht_cap);
1707 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1708 struct ieee80211_supported_band *sband,
1709 const struct ieee80211_ht_cap *ht_cap_ie,
1710 struct sta_info *sta);
1711 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1712 const u8 *da, u16 tid,
1713 u16 initiator, u16 reason_code);
1714 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1715 enum ieee80211_smps_mode smps, const u8 *da,
1717 void ieee80211_request_smps_ap_work(struct work_struct *work);
1718 void ieee80211_request_smps_mgd_work(struct work_struct *work);
1719 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
1720 enum ieee80211_smps_mode smps_mode_new);
1722 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1723 u16 initiator, u16 reason, bool stop);
1724 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1725 u16 initiator, u16 reason, bool stop);
1726 void __ieee80211_start_rx_ba_session(struct sta_info *sta,
1727 u8 dialog_token, u16 timeout,
1728 u16 start_seq_num, u16 ba_policy, u16 tid,
1729 u16 buf_size, bool tx, bool auto_seq);
1730 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1731 enum ieee80211_agg_stop_reason reason);
1732 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1733 struct sta_info *sta,
1734 struct ieee80211_mgmt *mgmt, size_t len);
1735 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1736 struct sta_info *sta,
1737 struct ieee80211_mgmt *mgmt,
1739 void ieee80211_process_addba_request(struct ieee80211_local *local,
1740 struct sta_info *sta,
1741 struct ieee80211_mgmt *mgmt,
1744 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1745 enum ieee80211_agg_stop_reason reason);
1746 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1747 enum ieee80211_agg_stop_reason reason);
1748 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid,
1749 struct tid_ampdu_tx *tid_tx);
1750 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
1751 struct tid_ampdu_tx *tid_tx);
1752 void ieee80211_ba_session_work(struct work_struct *work);
1753 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1754 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1756 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1760 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1761 struct ieee80211_supported_band *sband,
1762 const struct ieee80211_vht_cap *vht_cap_ie,
1763 struct sta_info *sta);
1764 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta);
1765 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
1766 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
1767 enum ieee80211_sta_rx_bandwidth
1768 ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
1769 enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta);
1770 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
1771 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
1772 struct ieee80211_mgmt *mgmt);
1773 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1774 struct sta_info *sta, u8 opmode,
1775 enum nl80211_band band);
1776 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1777 struct sta_info *sta, u8 opmode,
1778 enum nl80211_band band);
1779 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
1780 struct ieee80211_sta_vht_cap *vht_cap);
1781 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
1782 u16 vht_mask[NL80211_VHT_NSS_MAX]);
1784 /* Spectrum management */
1785 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1786 struct ieee80211_mgmt *mgmt,
1789 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
1790 * @sdata: the sdata of the interface which has received the frame
1791 * @elems: parsed 802.11 elements received with the frame
1792 * @current_band: indicates the current band
1793 * @sta_flags: contains information about own capabilities and restrictions
1794 * to decide which channel switch announcements can be accepted. Only the
1795 * following subset of &enum ieee80211_sta_flags are evaluated:
1796 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
1797 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
1798 * %IEEE80211_STA_DISABLE_160MHZ.
1799 * @bssid: the currently connected bssid (for reporting)
1800 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
1801 All of them will be filled with if success only.
1802 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
1804 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
1805 struct ieee802_11_elems *elems,
1806 enum nl80211_band current_band,
1807 u32 sta_flags, u8 *bssid,
1808 struct ieee80211_csa_ie *csa_ie);
1810 /* Suspend/resume and hw reconfiguration */
1811 int ieee80211_reconfig(struct ieee80211_local *local);
1812 void ieee80211_stop_device(struct ieee80211_local *local);
1814 int __ieee80211_suspend(struct ieee80211_hw *hw,
1815 struct cfg80211_wowlan *wowlan);
1817 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1819 struct ieee80211_local *local = hw_to_local(hw);
1821 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
1822 !test_bit(SCAN_COMPLETED, &local->scanning),
1823 "%s: resume with hardware scan still in progress\n",
1824 wiphy_name(hw->wiphy));
1826 return ieee80211_reconfig(hw_to_local(hw));
1829 /* utility functions/constants */
1830 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
1831 int ieee80211_frame_duration(enum nl80211_band band, size_t len,
1832 int rate, int erp, int short_preamble,
1834 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1835 bool bss_notify, bool enable_qos);
1836 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
1837 struct sta_info *sta, struct sk_buff *skb);
1839 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1840 struct sk_buff *skb, int tid,
1841 enum nl80211_band band);
1844 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1845 struct sk_buff *skb, int tid,
1846 enum nl80211_band band)
1849 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1853 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1854 struct sk_buff *skb, int tid)
1856 struct ieee80211_chanctx_conf *chanctx_conf;
1859 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1860 if (WARN_ON(!chanctx_conf)) {
1866 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
1867 chanctx_conf->def.chan->band);
1871 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
1872 struct sk_buff *skb)
1874 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1875 ieee80211_tx_skb_tid(sdata, skb, 7);
1878 u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
1879 struct ieee802_11_elems *elems,
1880 u64 filter, u32 crc);
1881 static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
1883 struct ieee802_11_elems *elems)
1885 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
1889 extern const int ieee802_1d_to_ac[8];
1891 static inline int ieee80211_ac_from_tid(int tid)
1893 return ieee802_1d_to_ac[tid & 7];
1896 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1897 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1898 void ieee80211_dynamic_ps_timer(unsigned long data);
1899 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1900 struct ieee80211_sub_if_data *sdata,
1902 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1903 struct ieee80211_hdr *hdr);
1904 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
1905 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
1907 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1908 unsigned long queues,
1909 enum queue_stop_reason reason,
1911 void ieee80211_stop_vif_queues(struct ieee80211_local *local,
1912 struct ieee80211_sub_if_data *sdata,
1913 enum queue_stop_reason reason);
1914 void ieee80211_wake_vif_queues(struct ieee80211_local *local,
1915 struct ieee80211_sub_if_data *sdata,
1916 enum queue_stop_reason reason);
1917 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1918 unsigned long queues,
1919 enum queue_stop_reason reason,
1921 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1922 enum queue_stop_reason reason,
1924 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1925 enum queue_stop_reason reason,
1927 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
1928 void ieee80211_add_pending_skb(struct ieee80211_local *local,
1929 struct sk_buff *skb);
1930 void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1931 struct sk_buff_head *skbs);
1932 void ieee80211_flush_queues(struct ieee80211_local *local,
1933 struct ieee80211_sub_if_data *sdata, bool drop);
1934 void __ieee80211_flush_queues(struct ieee80211_local *local,
1935 struct ieee80211_sub_if_data *sdata,
1936 unsigned int queues, bool drop);
1938 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
1941 * If quiescing is set, we are racing with __ieee80211_suspend.
1942 * __ieee80211_suspend flushes the workers after setting quiescing,
1943 * and we check quiescing / suspended before enqueing new workers.
1944 * We should abort the worker to avoid the races below.
1946 if (local->quiescing)
1950 * We might already be suspended if the following scenario occurs:
1951 * __ieee80211_suspend Control path
1953 * if (local->quiescing)
1955 * local->quiescing = true;
1956 * flush_workqueue();
1958 * local->suspended = true;
1959 * local->quiescing = false;
1960 * worker starts running...
1962 if (local->suspended)
1968 int ieee80211_txq_setup_flows(struct ieee80211_local *local);
1969 void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
1970 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
1971 struct sta_info *sta,
1972 struct txq_info *txq, int tid);
1973 void ieee80211_txq_purge(struct ieee80211_local *local,
1974 struct txq_info *txqi);
1975 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1976 u16 transaction, u16 auth_alg, u16 status,
1977 const u8 *extra, size_t extra_len, const u8 *bssid,
1978 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
1980 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
1981 const u8 *bssid, u16 stype, u16 reason,
1982 bool send_frame, u8 *frame_buf);
1983 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1985 struct ieee80211_scan_ies *ie_desc,
1986 const u8 *ie, size_t ie_len,
1987 u8 bands_used, u32 *rate_masks,
1988 struct cfg80211_chan_def *chandef);
1989 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
1990 const u8 *src, const u8 *dst,
1992 struct ieee80211_channel *chan,
1993 const u8 *ssid, size_t ssid_len,
1994 const u8 *ie, size_t ie_len,
1996 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata,
1997 const u8 *src, const u8 *dst,
1998 const u8 *ssid, size_t ssid_len,
1999 const u8 *ie, size_t ie_len,
2000 u32 ratemask, bool directed, u32 tx_flags,
2001 struct ieee80211_channel *channel, bool scan);
2003 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
2004 struct ieee802_11_elems *elems,
2005 enum nl80211_band band, u32 *basic_rates);
2006 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2007 enum ieee80211_smps_mode smps_mode);
2008 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2009 enum ieee80211_smps_mode smps_mode);
2010 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
2011 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
2013 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
2014 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2016 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2017 const struct cfg80211_chan_def *chandef,
2018 u16 prot_mode, bool rifs_mode);
2019 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2021 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2022 const struct cfg80211_chan_def *chandef);
2023 int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
2024 const struct ieee80211_supported_band *sband,
2025 const u8 *srates, int srates_len, u32 *rates);
2026 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
2027 struct sk_buff *skb, bool need_basic,
2028 enum nl80211_band band);
2029 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
2030 struct sk_buff *skb, bool need_basic,
2031 enum nl80211_band band);
2032 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
2034 /* channel management */
2035 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2036 struct cfg80211_chan_def *chandef);
2037 bool ieee80211_chandef_vht_oper(const struct ieee80211_vht_operation *oper,
2038 struct cfg80211_chan_def *chandef);
2039 u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
2042 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
2043 const struct cfg80211_chan_def *chandef,
2044 enum ieee80211_chanctx_mode mode);
2046 ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
2047 const struct cfg80211_chan_def *chandef,
2048 enum ieee80211_chanctx_mode mode,
2049 bool radar_required);
2051 ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata);
2052 int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);
2055 ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
2056 const struct cfg80211_chan_def *chandef,
2058 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
2059 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
2060 void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
2062 int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2063 struct ieee80211_chanctx *ctx);
2065 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2066 struct ieee80211_chanctx *chanctx);
2067 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2068 struct ieee80211_chanctx *ctx);
2069 bool ieee80211_is_radar_required(struct ieee80211_local *local);
2071 void ieee80211_dfs_cac_timer(unsigned long data);
2072 void ieee80211_dfs_cac_timer_work(struct work_struct *work);
2073 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2074 void ieee80211_dfs_radar_detected_work(struct work_struct *work);
2075 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2076 struct cfg80211_csa_settings *csa_settings);
2078 bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs);
2079 bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n);
2080 const struct ieee80211_cipher_scheme *
2081 ieee80211_cs_get(struct ieee80211_local *local, u32 cipher,
2082 enum nl80211_iftype iftype);
2083 int ieee80211_cs_headroom(struct ieee80211_local *local,
2084 struct cfg80211_crypto_settings *crypto,
2085 enum nl80211_iftype iftype);
2086 void ieee80211_recalc_dtim(struct ieee80211_local *local,
2087 struct ieee80211_sub_if_data *sdata);
2088 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2089 const struct cfg80211_chan_def *chandef,
2090 enum ieee80211_chanctx_mode chanmode,
2092 int ieee80211_max_num_channels(struct ieee80211_local *local);
2093 enum nl80211_chan_width ieee80211_get_sta_bw(struct ieee80211_sta *sta);
2094 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2095 struct ieee80211_chanctx *ctx);
2098 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2099 const u8 *peer, u8 action_code, u8 dialog_token,
2100 u16 status_code, u32 peer_capability,
2101 bool initiator, const u8 *extra_ies,
2102 size_t extra_ies_len);
2103 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2104 const u8 *peer, enum nl80211_tdls_operation oper);
2105 void ieee80211_tdls_peer_del_work(struct work_struct *wk);
2106 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2107 const u8 *addr, u8 oper_class,
2108 struct cfg80211_chan_def *chandef);
2109 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2110 struct net_device *dev,
2112 void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
2113 void ieee80211_tdls_chsw_work(struct work_struct *wk);
2114 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
2115 const u8 *peer, u16 reason);
2116 const char *ieee80211_get_reason_code_string(u16 reason_code);
2118 extern const struct ethtool_ops ieee80211_ethtool_ops;
2120 #ifdef CONFIG_MAC80211_NOINLINE
2121 #define debug_noinline noinline
2123 #define debug_noinline
2126 void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache);
2127 void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache);
2129 #endif /* IEEE80211_I_H */