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 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
56 * reception of at least three fragmented frames. This limit can be increased
57 * by changing this define, at the cost of slower frame reassembly and
58 * increased memory use (about 2 kB of RAM per entry). */
59 #define IEEE80211_FRAGMENT_MAX 4
61 /* power level hasn't been configured (or set to automatic) */
62 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN
65 * Some APs experience problems when working with U-APSD. Decreasing the
66 * probability of that happening by using legacy mode for all ACs but VO isn't
69 * Cisco 4410N originally forced us to enable VO by default only because it
70 * treated non-VO ACs as legacy.
72 * However some APs (notably Netgear R7000) silently reclassify packets to
73 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval
74 * clients would never see some frames (e.g. ARP responses) or would fetch them
75 * accidentally after a long time.
77 * It makes little sense to enable u-APSD queues by default because it needs
78 * userspace applications to be aware of it to actually take advantage of the
79 * possible additional powersavings. Implicitly depending on driver autotrigger
80 * frame support doesn't make much sense.
82 #define IEEE80211_DEFAULT_UAPSD_QUEUES 0
84 #define IEEE80211_DEFAULT_MAX_SP_LEN \
85 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
87 extern const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS];
89 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
91 #define IEEE80211_MAX_NAN_INSTANCE_ID 255
93 struct ieee80211_fragment_entry {
94 struct sk_buff_head skb_list;
95 unsigned long first_frag_time;
100 bool check_sequential_pn; /* needed for CCMP/GCMP */
101 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
105 struct ieee80211_bss {
106 u32 device_ts_beacon, device_ts_presp;
109 bool uapsd_supported;
111 #define IEEE80211_MAX_SUPP_RATES 32
112 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
113 size_t supp_rates_len;
114 struct ieee80211_rate *beacon_rate;
117 * During association, we save an ERP value from a probe response so
118 * that we can feed ERP info to the driver when handling the
119 * association completes. these fields probably won't be up-to-date
120 * otherwise, you probably don't want to use them.
125 /* Keep track of the corruption of the last beacon/probe response. */
128 /* Keep track of what bits of information we have valid info for. */
133 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
134 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
135 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
137 * These are bss flags that are attached to a bss in the
138 * @corrupt_data field of &struct ieee80211_bss.
140 enum ieee80211_bss_corrupt_data_flags {
141 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
142 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
146 * enum ieee80211_valid_data_flags - BSS valid data flags
147 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
148 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
149 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
151 * These are bss flags that are attached to a bss in the
152 * @valid_data field of &struct ieee80211_bss. They show which parts
153 * of the data structure were received as a result of an un-corrupted
154 * beacon/probe response.
156 enum ieee80211_bss_valid_data_flags {
157 IEEE80211_BSS_VALID_WMM = BIT(1),
158 IEEE80211_BSS_VALID_RATES = BIT(2),
159 IEEE80211_BSS_VALID_ERP = BIT(3)
162 typedef unsigned __bitwise ieee80211_tx_result;
163 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
164 #define TX_DROP ((__force ieee80211_tx_result) 1u)
165 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
167 #define IEEE80211_TX_UNICAST BIT(1)
168 #define IEEE80211_TX_PS_BUFFERED BIT(2)
170 struct ieee80211_tx_data {
172 struct sk_buff_head skbs;
173 struct ieee80211_local *local;
174 struct ieee80211_sub_if_data *sdata;
175 struct sta_info *sta;
176 struct ieee80211_key *key;
177 struct ieee80211_tx_rate rate;
183 typedef unsigned __bitwise ieee80211_rx_result;
184 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
185 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
186 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
187 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
190 * enum ieee80211_packet_rx_flags - packet RX flags
191 * @IEEE80211_RX_AMSDU: a-MSDU packet
192 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
193 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
195 * These are per-frame flags that are attached to a frame in the
196 * @rx_flags field of &struct ieee80211_rx_status.
198 enum ieee80211_packet_rx_flags {
199 IEEE80211_RX_AMSDU = BIT(3),
200 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
201 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
205 * enum ieee80211_rx_flags - RX data flags
207 * @IEEE80211_RX_CMNTR: received on cooked monitor already
208 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
209 * to cfg80211_report_obss_beacon().
211 * These flags are used across handling multiple interfaces
212 * for a single frame.
214 enum ieee80211_rx_flags {
215 IEEE80211_RX_CMNTR = BIT(0),
216 IEEE80211_RX_BEACON_REPORTED = BIT(1),
219 struct ieee80211_rx_data {
220 struct napi_struct *napi;
222 struct ieee80211_local *local;
223 struct ieee80211_sub_if_data *sdata;
224 struct sta_info *sta;
225 struct ieee80211_key *key;
230 * Index into sequence numbers array, 0..16
231 * since the last (16) is used for non-QoS,
232 * will be 16 on non-QoS frames.
237 * Index into the security IV/PN arrays, 0..16
238 * since the last (16) is used for CCMP-encrypted
239 * management frames, will be set to 16 on mgmt
240 * frames and 0 on non-QoS frames.
248 struct ieee80211_csa_settings {
249 const u16 *counter_offsets_beacon;
250 const u16 *counter_offsets_presp;
252 int n_counter_offsets_beacon;
253 int n_counter_offsets_presp;
260 int head_len, tail_len;
261 struct ieee80211_meshconf_ie *meshconf;
262 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
263 u8 csa_current_counter;
264 struct rcu_head rcu_head;
268 struct rcu_head rcu_head;
270 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
275 /* yes, this looks ugly, but guarantees that we can later use
277 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
278 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
279 __aligned(__alignof__(unsigned long));
280 struct sk_buff_head bc_buf;
281 atomic_t num_sta_ps; /* number of stations in PS mode */
286 struct ieee80211_if_ap {
287 struct beacon_data __rcu *beacon;
288 struct probe_resp __rcu *probe_resp;
290 /* to be used after channel switch. */
291 struct cfg80211_beacon_data *next_beacon;
292 struct list_head vlans; /* write-protected with RTNL and local->mtx */
295 atomic_t num_mcast_sta; /* number of stations receiving multicast */
296 enum ieee80211_smps_mode req_smps, /* requested smps mode */
297 driver_smps_mode; /* smps mode request */
299 struct work_struct request_smps_work;
300 bool multicast_to_unicast;
303 struct ieee80211_if_wds {
304 struct sta_info *sta;
305 u8 remote_addr[ETH_ALEN];
308 struct ieee80211_if_vlan {
309 struct list_head list; /* write-protected with RTNL and local->mtx */
311 /* used for all tx if the VLAN is configured to 4-addr mode */
312 struct sta_info __rcu *sta;
313 atomic_t num_mcast_sta; /* number of stations receiving multicast */
317 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
318 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
319 __u32 fwded_frames; /* Mesh total forwarded frames */
320 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
321 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
322 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
325 #define PREQ_Q_F_START 0x1
326 #define PREQ_Q_F_REFRESH 0x2
327 struct mesh_preq_queue {
328 struct list_head list;
333 struct ieee80211_roc_work {
334 struct list_head list;
336 struct ieee80211_sub_if_data *sdata;
338 struct ieee80211_channel *chan;
340 bool started, abort, hw_begun, notified;
343 unsigned long start_time;
345 u32 duration, req_duration;
346 struct sk_buff *frame;
347 u64 cookie, mgmt_tx_cookie;
348 enum ieee80211_roc_type type;
351 /* flags used in struct ieee80211_if_managed.flags */
352 enum ieee80211_sta_flags {
353 IEEE80211_STA_CONNECTION_POLL = BIT(1),
354 IEEE80211_STA_CONTROL_PORT = BIT(2),
355 IEEE80211_STA_DISABLE_HT = BIT(4),
356 IEEE80211_STA_MFP_ENABLED = BIT(6),
357 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
358 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
359 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
360 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
361 IEEE80211_STA_DISABLE_VHT = BIT(11),
362 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
363 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
364 IEEE80211_STA_DISABLE_WMM = BIT(14),
365 IEEE80211_STA_ENABLE_RRM = BIT(15),
368 struct ieee80211_mgd_auth_data {
369 struct cfg80211_bss *bss;
370 unsigned long timeout;
372 u16 algorithm, expected_transaction;
374 u8 key[WLAN_KEY_LEN_WEP104];
377 bool timeout_started;
379 u16 sae_trans, sae_status;
384 struct ieee80211_mgd_assoc_data {
385 struct cfg80211_bss *bss;
386 const u8 *supp_rates;
388 unsigned long timeout;
392 u8 prev_bssid[ETH_ALEN];
393 u8 ssid[IEEE80211_MAX_SSID_LEN];
399 bool timeout_started;
403 struct ieee80211_vht_cap ap_vht_cap;
405 u8 fils_nonces[2 * FILS_NONCE_LEN];
406 u8 fils_kek[FILS_MAX_KEK_LEN];
413 struct ieee80211_sta_tx_tspec {
414 /* timestamp of the first packet in the time slice */
415 unsigned long time_slice_start;
417 u32 admitted_time; /* in usecs, unlike over the air */
419 s8 up; /* signed to be able to invalidate with -1 during teardown */
421 /* consumed TX time in microseconds in the time slice */
422 u32 consumed_tx_time;
424 TX_TSPEC_ACTION_NONE = 0,
425 TX_TSPEC_ACTION_DOWNGRADE,
426 TX_TSPEC_ACTION_STOP_DOWNGRADE,
431 DECLARE_EWMA(beacon_signal, 4, 4)
433 struct ieee80211_if_managed {
434 struct timer_list timer;
435 struct timer_list conn_mon_timer;
436 struct timer_list bcn_mon_timer;
437 struct timer_list chswitch_timer;
438 struct work_struct monitor_work;
439 struct work_struct chswitch_work;
440 struct work_struct beacon_connection_loss_work;
441 struct work_struct csa_connection_drop_work;
443 unsigned long beacon_timeout;
444 unsigned long probe_timeout;
445 int probe_send_count;
446 bool nullfunc_failed;
447 bool connection_loss;
449 struct cfg80211_bss *associated;
450 struct ieee80211_mgd_auth_data *auth_data;
451 struct ieee80211_mgd_assoc_data *assoc_data;
453 u8 bssid[ETH_ALEN] __aligned(2);
457 bool powersave; /* powersave requested for this iface */
458 bool broken_ap; /* AP is broken -- turn off powersave */
461 enum ieee80211_smps_mode req_smps, /* requested smps mode */
462 driver_smps_mode; /* smps mode request */
464 struct work_struct request_smps_work;
468 bool csa_waiting_bcn;
469 bool csa_ignored_same_chan;
471 bool beacon_crc_valid;
475 bool status_received;
479 IEEE80211_MFP_DISABLED,
480 IEEE80211_MFP_OPTIONAL,
481 IEEE80211_MFP_REQUIRED
482 } mfp; /* management frame protection */
485 * Bitmask of enabled u-apsd queues,
486 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
489 unsigned int uapsd_queues;
492 * Maximum number of buffered frames AP can deliver during a
493 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
494 * Needs a new association to take effect.
496 unsigned int uapsd_max_sp_len;
498 int wmm_last_param_set;
504 struct ewma_beacon_signal ave_beacon_signal;
507 * Number of Beacon frames used in ave_beacon_signal. This can be used
508 * to avoid generating less reliable cqm events that would be based
509 * only on couple of received frames.
511 unsigned int count_beacon_signal;
513 /* Number of times beacon loss was invoked. */
514 unsigned int beacon_loss_count;
517 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
518 * that triggered a cqm event. 0 indicates that no event has been
519 * generated for the current association.
521 int last_cqm_event_signal;
524 * State variables for keeping track of RSSI of the AP currently
525 * connected to and informing driver when RSSI has gone
526 * below/above a certain threshold.
528 int rssi_min_thold, rssi_max_thold;
529 int last_ave_beacon_signal;
531 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
532 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
533 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
534 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
537 u8 tdls_peer[ETH_ALEN] __aligned(2);
538 struct delayed_work tdls_peer_del_work;
539 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
540 struct sk_buff *teardown_skb; /* A copy to send through the AP */
541 spinlock_t teardown_lock; /* To lock changing teardown_skb */
542 bool tdls_chan_switch_prohibited;
543 bool tdls_wider_bw_prohibited;
545 /* WMM-AC TSPEC support */
546 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
547 /* Use a separate work struct so that we can do something here
548 * while the sdata->work is flushing the queues, for example.
549 * otherwise, in scenarios where we hardly get any traffic out
550 * on the BE queue, but there's a lot of VO traffic, we might
551 * get stuck in a downgraded situation and flush takes forever.
553 struct delayed_work tx_tspec_wk;
556 struct ieee80211_if_ibss {
557 struct timer_list timer;
558 struct work_struct csa_connection_drop_work;
560 unsigned long last_scan_completed;
569 bool userspace_handles_dfs;
571 u8 bssid[ETH_ALEN] __aligned(2);
572 u8 ssid[IEEE80211_MAX_SSID_LEN];
575 struct cfg80211_chan_def chandef;
577 unsigned long ibss_join_req;
578 /* probe response/beacon for IBSS */
579 struct beacon_data __rcu *presp;
581 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
582 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
584 spinlock_t incomplete_lock;
585 struct list_head incomplete_stations;
588 IEEE80211_IBSS_MLME_SEARCH,
589 IEEE80211_IBSS_MLME_JOINED,
594 * struct ieee80211_if_ocb - OCB mode state
596 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
597 * @wrkq_flags: OCB deferred task action
598 * @incomplete_lock: delayed STA insertion lock
599 * @incomplete_stations: list of STAs waiting for delayed insertion
600 * @joined: indication if the interface is connected to an OCB network
602 struct ieee80211_if_ocb {
603 struct timer_list housekeeping_timer;
604 unsigned long wrkq_flags;
606 spinlock_t incomplete_lock;
607 struct list_head incomplete_stations;
613 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
615 * these declarations define the interface, which enables
616 * vendor-specific mesh synchronization
619 struct ieee802_11_elems;
620 struct ieee80211_mesh_sync_ops {
621 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
623 struct ieee80211_mgmt *mgmt,
624 struct ieee802_11_elems *elems,
625 struct ieee80211_rx_status *rx_status);
627 /* should be called with beacon_data under RCU read lock */
628 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata,
629 struct beacon_data *beacon);
630 /* add other framework functions here */
633 struct mesh_csa_settings {
634 struct rcu_head rcu_head;
635 struct cfg80211_csa_settings settings;
638 struct ieee80211_if_mesh {
639 struct timer_list housekeeping_timer;
640 struct timer_list mesh_path_timer;
641 struct timer_list mesh_path_root_timer;
643 unsigned long wrkq_flags;
644 unsigned long mbss_changed;
646 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
648 /* Active Path Selection Protocol Identifier */
650 /* Active Path Selection Metric Identifier */
652 /* Congestion Control Mode Identifier */
654 /* Synchronization Protocol Identifier */
656 /* Authentication Protocol Identifier */
658 /* Local mesh Sequence Number */
660 /* Last used PREQ ID */
663 /* Timestamp of last SN update */
664 unsigned long last_sn_update;
665 /* Time when it's ok to send next PERR */
666 unsigned long next_perr;
667 /* Timestamp of last PREQ sent */
668 unsigned long last_preq;
669 struct mesh_rmc *rmc;
670 spinlock_t mesh_preq_queue_lock;
671 struct mesh_preq_queue preq_queue;
673 struct mesh_stats mshstats;
674 struct mesh_config mshcfg;
675 atomic_t estab_plinks;
677 bool accepting_plinks;
679 struct beacon_data __rcu *beacon;
683 IEEE80211_MESH_SEC_NONE = 0x0,
684 IEEE80211_MESH_SEC_AUTHED = 0x1,
685 IEEE80211_MESH_SEC_SECURED = 0x2,
688 /* Extensible Synchronization Framework */
689 const struct ieee80211_mesh_sync_ops *sync_ops;
690 s64 sync_offset_clockdrift_max;
691 spinlock_t sync_offset_lock;
692 /* mesh power save */
693 enum nl80211_mesh_power_mode nonpeer_pm;
694 int ps_peers_light_sleep;
695 int ps_peers_deep_sleep;
697 /* Channel Switching Support */
698 struct mesh_csa_settings __rcu *csa;
700 IEEE80211_MESH_CSA_ROLE_NONE,
701 IEEE80211_MESH_CSA_ROLE_INIT,
702 IEEE80211_MESH_CSA_ROLE_REPEATER,
707 /* offset from skb->data while building IE */
710 struct mesh_table *mesh_paths;
711 struct mesh_table *mpp_paths; /* Store paths for MPP&MAP */
712 int mesh_paths_generation;
713 int mpp_paths_generation;
716 #ifdef CONFIG_MAC80211_MESH
717 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
718 do { (msh)->mshstats.name++; } while (0)
720 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
725 * enum ieee80211_sub_if_data_flags - virtual interface flags
727 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
728 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
729 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
730 * associated stations and deliver multicast frames both
731 * back to wireless media and to the local net stack.
732 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
733 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
735 enum ieee80211_sub_if_data_flags {
736 IEEE80211_SDATA_ALLMULTI = BIT(0),
737 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
738 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
739 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
740 IEEE80211_SDATA_IN_DRIVER = BIT(5),
744 * enum ieee80211_sdata_state_bits - virtual interface state bits
745 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
746 * mirrors netif_running() but is separate for interface type
747 * change handling while the interface is up
748 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
749 * mode, so queues are stopped
750 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
751 * to offchannel, reset when offchannel returns
753 enum ieee80211_sdata_state_bits {
755 SDATA_STATE_OFFCHANNEL,
756 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
760 * enum ieee80211_chanctx_mode - channel context configuration mode
762 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
763 * multiple interfaces
764 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
765 * only by a single interface. This can be used for example for
766 * non-fixed channel IBSS.
768 enum ieee80211_chanctx_mode {
769 IEEE80211_CHANCTX_SHARED,
770 IEEE80211_CHANCTX_EXCLUSIVE
774 * enum ieee80211_chanctx_replace_state - channel context replacement state
776 * This is used for channel context in-place reservations that require channel
777 * context switch/swap.
779 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
780 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
781 * by a (not yet registered) channel context pointed by %replace_ctx.
782 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
783 * replaces an existing channel context pointed to by %replace_ctx.
785 enum ieee80211_chanctx_replace_state {
786 IEEE80211_CHANCTX_REPLACE_NONE,
787 IEEE80211_CHANCTX_WILL_BE_REPLACED,
788 IEEE80211_CHANCTX_REPLACES_OTHER,
791 struct ieee80211_chanctx {
792 struct list_head list;
793 struct rcu_head rcu_head;
795 struct list_head assigned_vifs;
796 struct list_head reserved_vifs;
798 enum ieee80211_chanctx_replace_state replace_state;
799 struct ieee80211_chanctx *replace_ctx;
801 enum ieee80211_chanctx_mode mode;
804 struct ieee80211_chanctx_conf conf;
807 struct mac80211_qos_map {
808 struct cfg80211_qos_map qos_map;
809 struct rcu_head rcu_head;
812 enum txq_info_flags {
815 IEEE80211_TXQ_NO_AMSDU,
819 * struct txq_info - per tid queue
821 * @tin: contains packets split into multiple flows
822 * @def_flow: used as a fallback flow when a packet destined to @tin hashes to
823 * a fq_flow which is already owned by a different tin
824 * @def_cvars: codel vars for @def_flow
825 * @frags: used to keep fragments created after dequeue
829 struct fq_flow def_flow;
830 struct codel_vars def_cvars;
831 struct codel_stats cstats;
832 struct sk_buff_head frags;
836 struct ieee80211_txq txq;
839 struct ieee80211_if_mntr {
841 u8 mu_follow_addr[ETH_ALEN] __aligned(2);
843 struct list_head list;
847 * struct ieee80211_if_nan - NAN state
849 * @conf: current NAN configuration
850 * @func_ids: a bitmap of available instance_id's
852 struct ieee80211_if_nan {
853 struct cfg80211_nan_conf conf;
855 /* protects function_inst_ids */
856 spinlock_t func_lock;
857 struct idr function_inst_ids;
860 struct ieee80211_sub_if_data {
861 struct list_head list;
863 struct wireless_dev wdev;
866 struct list_head key_list;
868 /* count for keys needing tailroom space allocation */
869 int crypto_tx_tailroom_needed_cnt;
870 int crypto_tx_tailroom_pending_dec;
871 struct delayed_work dec_tailroom_needed_wk;
873 struct net_device *dev;
874 struct ieee80211_local *local;
882 /* Fragment table for host-based reassembly */
883 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
884 unsigned int fragment_next;
886 /* TID bitmap for NoAck policy */
889 /* bit field of ACM bits (BIT(802.1D tag)) */
892 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
893 struct ieee80211_key __rcu *default_unicast_key;
894 struct ieee80211_key __rcu *default_multicast_key;
895 struct ieee80211_key __rcu *default_mgmt_key;
898 __be16 control_port_protocol;
899 bool control_port_no_encrypt;
900 int encrypt_headroom;
902 atomic_t num_tx_queued;
903 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
904 struct mac80211_qos_map __rcu *qos_map;
906 struct work_struct csa_finalize_work;
907 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
908 struct cfg80211_chan_def csa_chandef;
910 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
911 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
913 /* context reservation -- protected with chanctx_mtx */
914 struct ieee80211_chanctx *reserved_chanctx;
915 struct cfg80211_chan_def reserved_chandef;
916 bool reserved_radar_required;
919 /* used to reconfigure hardware SM PS */
920 struct work_struct recalc_smps;
922 struct work_struct work;
923 struct sk_buff_head skb_queue;
926 enum ieee80211_smps_mode smps_mode;
928 int user_power_level; /* in dBm */
929 int ap_power_level; /* in dBm */
932 struct delayed_work dfs_cac_timer_work;
935 * AP this belongs to: self in AP mode and
936 * corresponding AP in VLAN mode, NULL for
937 * all others (might be needed later in IBSS)
939 struct ieee80211_if_ap *bss;
941 /* bitmap of allowed (non-MCS) rate indexes for rate control */
942 u32 rc_rateidx_mask[NUM_NL80211_BANDS];
944 bool rc_has_mcs_mask[NUM_NL80211_BANDS];
945 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
947 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
948 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
951 struct ieee80211_if_ap ap;
952 struct ieee80211_if_wds wds;
953 struct ieee80211_if_vlan vlan;
954 struct ieee80211_if_managed mgd;
955 struct ieee80211_if_ibss ibss;
956 struct ieee80211_if_mesh mesh;
957 struct ieee80211_if_ocb ocb;
958 struct ieee80211_if_mntr mntr;
959 struct ieee80211_if_nan nan;
962 #ifdef CONFIG_MAC80211_DEBUGFS
964 struct dentry *subdir_stations;
965 struct dentry *default_unicast_key;
966 struct dentry *default_multicast_key;
967 struct dentry *default_mgmt_key;
971 /* must be last, dynamically sized area in this! */
972 struct ieee80211_vif vif;
976 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
978 return container_of(p, struct ieee80211_sub_if_data, vif);
981 static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
982 __acquires(&sdata->wdev.mtx)
984 mutex_lock(&sdata->wdev.mtx);
985 __acquire(&sdata->wdev.mtx);
988 static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
989 __releases(&sdata->wdev.mtx)
991 mutex_unlock(&sdata->wdev.mtx);
992 __release(&sdata->wdev.mtx);
995 #define sdata_dereference(p, sdata) \
996 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
999 sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
1001 lockdep_assert_held(&sdata->wdev.mtx);
1004 static inline enum nl80211_band
1005 ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
1007 enum nl80211_band band = NL80211_BAND_2GHZ;
1008 struct ieee80211_chanctx_conf *chanctx_conf;
1011 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1012 if (!WARN_ON(!chanctx_conf))
1013 band = chanctx_conf->def.chan->band;
1020 ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
1022 switch (chandef->width) {
1023 case NL80211_CHAN_WIDTH_5:
1025 case NL80211_CHAN_WIDTH_10:
1033 ieee80211_vif_get_shift(struct ieee80211_vif *vif)
1035 struct ieee80211_chanctx_conf *chanctx_conf;
1039 chanctx_conf = rcu_dereference(vif->chanctx_conf);
1041 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
1047 struct ieee80211_rx_agg {
1052 enum sdata_queue_type {
1053 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
1054 IEEE80211_SDATA_QUEUE_AGG_START = 1,
1055 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
1056 IEEE80211_SDATA_QUEUE_RX_AGG_START = 3,
1057 IEEE80211_SDATA_QUEUE_RX_AGG_STOP = 4,
1061 IEEE80211_RX_MSG = 1,
1062 IEEE80211_TX_STATUS_MSG = 2,
1065 enum queue_stop_reason {
1066 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1067 IEEE80211_QUEUE_STOP_REASON_PS,
1068 IEEE80211_QUEUE_STOP_REASON_CSA,
1069 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1070 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1071 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1072 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1073 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1074 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1075 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1077 IEEE80211_QUEUE_STOP_REASONS,
1080 #ifdef CONFIG_MAC80211_LEDS
1081 struct tpt_led_trigger {
1083 const struct ieee80211_tpt_blink *blink_table;
1084 unsigned int blink_table_len;
1085 struct timer_list timer;
1086 unsigned long prev_traffic;
1087 unsigned long tx_bytes, rx_bytes;
1088 unsigned int active, want;
1094 * mac80211 scan flags - currently active scan mode
1096 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1097 * well be on the operating channel
1098 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1099 * determine if we are on the operating channel or not
1100 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1101 * channel. This should not interrupt normal traffic.
1102 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1103 * that the scan completed.
1104 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1105 * a scan complete for an aborted scan.
1106 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1112 SCAN_ONCHANNEL_SCANNING,
1119 * enum mac80211_scan_state - scan state machine states
1121 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1122 * determines if we should keep on scanning or switch back to the
1124 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1125 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1126 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1128 * @SCAN_RESUME: Resume the scan and scan the next channel
1129 * @SCAN_ABORT: Abort the scan and go back to operating channel
1131 enum mac80211_scan_state {
1140 struct ieee80211_local {
1141 /* embed the driver visible part.
1142 * don't cast (use the static inlines below), but we keep
1143 * it first anyway so they become a no-op */
1144 struct ieee80211_hw hw;
1147 struct codel_vars *cvars;
1148 struct codel_params cparams;
1150 const struct ieee80211_ops *ops;
1153 * private workqueue to mac80211. mac80211 makes this accessible
1154 * via ieee80211_queue_work()
1156 struct workqueue_struct *workqueue;
1158 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1159 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1160 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1161 spinlock_t queue_stop_reason_lock;
1164 int monitors, cooked_mntrs;
1165 /* number of interfaces with corresponding FIF_ flags */
1166 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1169 unsigned int filter_flags; /* FIF_* */
1171 bool wiphy_ciphers_allocated;
1175 /* protects the aggregated multicast list and filter calls */
1176 spinlock_t filter_lock;
1178 /* used for uploading changed mc list */
1179 struct work_struct reconfig_filter;
1181 /* aggregated multicast list */
1182 struct netdev_hw_addr_list mc_list;
1184 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1187 * suspended is true if we finished all the suspend _and_ we have
1188 * not yet come up from resume. This is to be used by mac80211
1189 * to ensure driver sanity during suspend and mac80211's own
1190 * sanity. It can eventually be used for WoW as well.
1195 * Resuming is true while suspended, but when we're reprogramming the
1196 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1197 * again even though some other parts of the stack are still suspended
1198 * and we still drop received frames to avoid waking the stack.
1203 * quiescing is true during the suspend process _only_ to
1204 * ease timer cancelling etc.
1208 /* device is started */
1211 /* device is during a HW reconfig */
1214 /* wowlan is enabled -- don't reconfig on resume */
1217 struct work_struct radar_detected_work;
1219 /* number of RX chains the hardware has */
1222 int tx_headroom; /* required headroom for hardware/radiotap */
1224 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1225 * added to skb_queue will be processed, but frames in
1226 * skb_queue_unreliable may be dropped if the total length of these
1227 * queues increases over the limit. */
1228 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1229 struct tasklet_struct tasklet;
1230 struct sk_buff_head skb_queue;
1231 struct sk_buff_head skb_queue_unreliable;
1233 spinlock_t rx_path_lock;
1237 * The mutex only protects the list, hash table and
1238 * counter, reads are done with RCU.
1240 struct mutex sta_mtx;
1241 spinlock_t tim_lock;
1242 unsigned long num_sta;
1243 struct list_head sta_list;
1244 struct rhltable sta_hash;
1245 struct timer_list sta_cleanup;
1248 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1249 struct tasklet_struct tx_pending_tasklet;
1251 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1253 /* number of interfaces with allmulti RX */
1254 atomic_t iff_allmultis;
1256 struct rate_control_ref *rate_ctrl;
1258 struct crypto_cipher *wep_tx_tfm;
1259 struct crypto_cipher *wep_rx_tfm;
1263 struct list_head interfaces;
1264 struct list_head mon_list; /* only that are IFF_UP && !cooked */
1265 struct mutex iflist_mtx;
1268 * Key mutex, protects sdata's key_list and sta_info's
1269 * key pointers (write access, they're RCU.)
1271 struct mutex key_mtx;
1273 /* mutex for scan and work locking */
1276 /* Scanning and BSS list */
1277 unsigned long scanning;
1278 struct cfg80211_ssid scan_ssid;
1279 struct cfg80211_scan_request *int_scan_req;
1280 struct cfg80211_scan_request __rcu *scan_req;
1281 struct ieee80211_scan_request *hw_scan_req;
1282 struct cfg80211_chan_def scan_chandef;
1283 enum nl80211_band hw_scan_band;
1284 int scan_channel_idx;
1286 int hw_scan_ies_bufsize;
1287 struct cfg80211_scan_info scan_info;
1289 struct work_struct sched_scan_stopped_work;
1290 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1291 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1292 u8 scan_addr[ETH_ALEN];
1294 unsigned long leave_oper_channel_time;
1295 enum mac80211_scan_state next_scan_state;
1296 struct delayed_work scan_work;
1297 struct ieee80211_sub_if_data __rcu *scan_sdata;
1298 /* For backward compatibility only -- do not use */
1299 struct cfg80211_chan_def _oper_chandef;
1301 /* Temporary remain-on-channel for off-channel operations */
1302 struct ieee80211_channel *tmp_channel;
1304 /* channel contexts */
1305 struct list_head chanctx_list;
1306 struct mutex chanctx_mtx;
1308 #ifdef CONFIG_MAC80211_LEDS
1309 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1310 struct led_trigger tpt_led;
1311 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1312 atomic_t radio_led_active, tpt_led_active;
1313 struct tpt_led_trigger *tpt_led_trigger;
1316 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1318 /* dot11CountersTable */
1319 u32 dot11TransmittedFragmentCount;
1320 u32 dot11MulticastTransmittedFrameCount;
1321 u32 dot11FailedCount;
1322 u32 dot11RetryCount;
1323 u32 dot11MultipleRetryCount;
1324 u32 dot11FrameDuplicateCount;
1325 u32 dot11ReceivedFragmentCount;
1326 u32 dot11MulticastReceivedFrameCount;
1327 u32 dot11TransmittedFrameCount;
1329 /* TX/RX handler statistics */
1330 unsigned int tx_handlers_drop;
1331 unsigned int tx_handlers_queued;
1332 unsigned int tx_handlers_drop_wep;
1333 unsigned int tx_handlers_drop_not_assoc;
1334 unsigned int tx_handlers_drop_unauth_port;
1335 unsigned int rx_handlers_drop;
1336 unsigned int rx_handlers_queued;
1337 unsigned int rx_handlers_drop_nullfunc;
1338 unsigned int rx_handlers_drop_defrag;
1339 unsigned int tx_expand_skb_head;
1340 unsigned int tx_expand_skb_head_cloned;
1341 unsigned int rx_expand_skb_head_defrag;
1342 unsigned int rx_handlers_fragments;
1343 unsigned int tx_status_drop;
1344 #define I802_DEBUG_INC(c) (c)++
1345 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1346 #define I802_DEBUG_INC(c) do { } while (0)
1347 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1350 int total_ps_buffered; /* total number of all buffered unicast and
1351 * multicast packets for power saving stations
1355 bool offchannel_ps_enabled;
1357 * PS can only be enabled when we have exactly one managed
1358 * interface (and monitors) in PS, this then points there.
1360 struct ieee80211_sub_if_data *ps_sdata;
1361 struct work_struct dynamic_ps_enable_work;
1362 struct work_struct dynamic_ps_disable_work;
1363 struct timer_list dynamic_ps_timer;
1364 struct notifier_block ifa_notifier;
1365 struct notifier_block ifa6_notifier;
1368 * The dynamic ps timeout configured from user space via WEXT -
1369 * this will override whatever chosen by mac80211 internally.
1371 int dynamic_ps_forced_timeout;
1373 int user_power_level; /* in dBm, for all interfaces */
1375 enum ieee80211_smps_mode smps_mode;
1377 struct work_struct restart_work;
1379 #ifdef CONFIG_MAC80211_DEBUGFS
1380 struct local_debugfsdentries {
1381 struct dentry *rcdir;
1382 struct dentry *keys;
1387 * Remain-on-channel support
1389 struct delayed_work roc_work;
1390 struct list_head roc_list;
1391 struct work_struct hw_roc_start, hw_roc_done;
1392 unsigned long hw_roc_start_time;
1393 u64 roc_cookie_counter;
1395 struct idr ack_status_frames;
1396 spinlock_t ack_status_lock;
1398 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1400 /* virtual monitor interface */
1401 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1402 struct cfg80211_chan_def monitor_chandef;
1404 /* extended capabilities provided by mac80211 */
1407 /* TDLS channel switch */
1408 struct work_struct tdls_chsw_work;
1409 struct sk_buff_head skb_queue_tdls_chsw;
1412 static inline struct ieee80211_sub_if_data *
1413 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1415 return netdev_priv(dev);
1418 static inline struct ieee80211_sub_if_data *
1419 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1421 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1424 /* this struct represents 802.11n's RA/TID combination */
1425 struct ieee80211_ra_tid {
1430 /* this struct holds the value parsing from channel switch IE */
1431 struct ieee80211_csa_ie {
1432 struct cfg80211_chan_def chandef;
1439 /* Parsed Information Elements */
1440 struct ieee802_11_elems {
1444 /* pointers to IEs */
1445 const struct ieee80211_tdls_lnkie *lnk_id;
1446 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1447 const u8 *ext_capab;
1449 const u8 *supp_rates;
1450 const u8 *ds_params;
1451 const struct ieee80211_tim_ie *tim;
1452 const u8 *challenge;
1455 const u8 *ext_supp_rates;
1457 const u8 *wmm_param;
1458 const struct ieee80211_ht_cap *ht_cap_elem;
1459 const struct ieee80211_ht_operation *ht_operation;
1460 const struct ieee80211_vht_cap *vht_cap_elem;
1461 const struct ieee80211_vht_operation *vht_operation;
1462 const struct ieee80211_meshconf_ie *mesh_config;
1465 const __le16 *awake_window;
1469 const struct ieee80211_rann_ie *rann;
1470 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1471 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1472 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1473 const u8 *country_elem;
1474 const u8 *pwr_constr_elem;
1475 const u8 *cisco_dtpc_elem;
1476 const struct ieee80211_timeout_interval_ie *timeout_int;
1477 const u8 *opmode_notif;
1478 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1479 const struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1481 /* length of them, respectively */
1488 u8 ext_supp_rates_len;
1496 u8 country_elem_len;
1498 /* whether a parse error occurred while retrieving these elements */
1502 static inline struct ieee80211_local *hw_to_local(
1503 struct ieee80211_hw *hw)
1505 return container_of(hw, struct ieee80211_local, hw);
1508 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1510 return container_of(txq, struct txq_info, txq);
1513 static inline bool txq_has_queue(struct ieee80211_txq *txq)
1515 struct txq_info *txqi = to_txq_info(txq);
1517 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets);
1520 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1522 return ether_addr_equal(raddr, addr) ||
1523 is_broadcast_ether_addr(raddr);
1527 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1529 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1530 status->flag & RX_FLAG_MACTIME_END);
1531 if (status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END))
1533 /* can't handle HT/VHT preamble yet */
1534 if (status->flag & RX_FLAG_MACTIME_PLCP_START &&
1535 !(status->enc_flags & (RX_ENC_FLAG_HT | RX_ENC_FLAG_VHT)))
1540 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
1541 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
1543 /* This function returns the number of multicast stations connected to this
1544 * interface. It returns -1 if that number is not tracked, that is for netdevs
1545 * not in AP or AP_VLAN mode or when using 4addr.
1548 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
1550 if (sdata->vif.type == NL80211_IFTYPE_AP)
1551 return atomic_read(&sdata->u.ap.num_mcast_sta);
1552 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
1553 return atomic_read(&sdata->u.vlan.num_mcast_sta);
1557 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1558 struct ieee80211_rx_status *status,
1559 unsigned int mpdu_len,
1560 unsigned int mpdu_offset);
1561 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1562 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1563 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1565 void ieee80211_configure_filter(struct ieee80211_local *local);
1566 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1568 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
1569 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1570 u64 *cookie, gfp_t gfp);
1572 void ieee80211_check_fast_rx(struct sta_info *sta);
1573 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1574 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1575 void ieee80211_clear_fast_rx(struct sta_info *sta);
1578 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1579 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1580 struct cfg80211_auth_request *req);
1581 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1582 struct cfg80211_assoc_request *req);
1583 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1584 struct cfg80211_deauth_request *req);
1585 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1586 struct cfg80211_disassoc_request *req);
1587 void ieee80211_send_pspoll(struct ieee80211_local *local,
1588 struct ieee80211_sub_if_data *sdata);
1589 void ieee80211_recalc_ps(struct ieee80211_local *local);
1590 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1591 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1592 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1593 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1594 struct sk_buff *skb);
1595 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1596 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1597 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1598 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1599 __le16 fc, bool acked);
1600 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1601 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1602 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1605 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1606 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1607 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1608 const u8 *bssid, const u8 *addr, u32 supp_rates);
1609 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1610 struct cfg80211_ibss_params *params);
1611 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1612 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1613 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1614 struct sk_buff *skb);
1615 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1616 struct cfg80211_csa_settings *csa_settings);
1617 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
1618 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1621 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1622 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1623 const u8 *bssid, const u8 *addr, u32 supp_rates);
1624 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1625 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1626 struct ocb_setup *setup);
1627 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1630 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1631 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1632 struct sk_buff *skb);
1633 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1634 struct cfg80211_csa_settings *csa_settings);
1635 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
1637 /* scan/BSS handling */
1638 void ieee80211_scan_work(struct work_struct *work);
1639 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1640 const u8 *ssid, u8 ssid_len,
1641 struct ieee80211_channel **channels,
1642 unsigned int n_channels,
1643 enum nl80211_bss_scan_width scan_width);
1644 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1645 struct cfg80211_scan_request *req);
1646 void ieee80211_scan_cancel(struct ieee80211_local *local);
1647 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1648 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1650 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1651 struct ieee80211_bss *
1652 ieee80211_bss_info_update(struct ieee80211_local *local,
1653 struct ieee80211_rx_status *rx_status,
1654 struct ieee80211_mgmt *mgmt,
1656 struct ieee802_11_elems *elems,
1657 struct ieee80211_channel *channel);
1658 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1659 struct ieee80211_bss *bss);
1661 /* scheduled scan handling */
1663 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1664 struct cfg80211_sched_scan_request *req);
1665 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1666 struct cfg80211_sched_scan_request *req);
1667 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
1668 void ieee80211_sched_scan_end(struct ieee80211_local *local);
1669 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1671 /* off-channel/mgmt-tx */
1672 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1673 void ieee80211_offchannel_return(struct ieee80211_local *local);
1674 void ieee80211_roc_setup(struct ieee80211_local *local);
1675 void ieee80211_start_next_roc(struct ieee80211_local *local);
1676 void ieee80211_roc_purge(struct ieee80211_local *local,
1677 struct ieee80211_sub_if_data *sdata);
1678 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
1679 struct ieee80211_channel *chan,
1680 unsigned int duration, u64 *cookie);
1681 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1682 struct wireless_dev *wdev, u64 cookie);
1683 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
1684 struct cfg80211_mgmt_tx_params *params, u64 *cookie);
1685 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1686 struct wireless_dev *wdev, u64 cookie);
1688 /* channel switch handling */
1689 void ieee80211_csa_finalize_work(struct work_struct *work);
1690 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1691 struct cfg80211_csa_settings *params);
1693 /* interface handling */
1694 int ieee80211_iface_init(void);
1695 void ieee80211_iface_exit(void);
1696 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1697 unsigned char name_assign_type,
1698 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1699 struct vif_params *params);
1700 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1701 enum nl80211_iftype type);
1702 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1703 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1704 u32 ieee80211_idle_off(struct ieee80211_local *local);
1705 void ieee80211_recalc_idle(struct ieee80211_local *local);
1706 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1708 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1709 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
1710 int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1711 void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
1713 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1714 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
1717 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1719 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1723 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1724 void ieee80211_tx_pending(unsigned long data);
1725 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1726 struct net_device *dev);
1727 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1728 struct net_device *dev);
1729 void __ieee80211_subif_start_xmit(struct sk_buff *skb,
1730 struct net_device *dev,
1732 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1733 struct sk_buff_head *skbs);
1735 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
1736 struct sk_buff *skb, u32 info_flags);
1737 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
1738 struct ieee80211_supported_band *sband,
1739 int retry_count, int shift, bool send_to_cooked);
1741 void ieee80211_check_fast_xmit(struct sta_info *sta);
1742 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
1743 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
1744 void ieee80211_clear_fast_xmit(struct sta_info *sta);
1747 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1748 struct ieee80211_sta_ht_cap *ht_cap);
1749 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1750 struct ieee80211_supported_band *sband,
1751 const struct ieee80211_ht_cap *ht_cap_ie,
1752 struct sta_info *sta);
1753 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1754 const u8 *da, u16 tid,
1755 u16 initiator, u16 reason_code);
1756 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1757 enum ieee80211_smps_mode smps, const u8 *da,
1759 void ieee80211_request_smps_ap_work(struct work_struct *work);
1760 void ieee80211_request_smps_mgd_work(struct work_struct *work);
1761 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
1762 enum ieee80211_smps_mode smps_mode_new);
1764 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1765 u16 initiator, u16 reason, bool stop);
1766 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1767 u16 initiator, u16 reason, bool stop);
1768 void __ieee80211_start_rx_ba_session(struct sta_info *sta,
1769 u8 dialog_token, u16 timeout,
1770 u16 start_seq_num, u16 ba_policy, u16 tid,
1771 u16 buf_size, bool tx, bool auto_seq);
1772 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1773 enum ieee80211_agg_stop_reason reason);
1774 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1775 struct sta_info *sta,
1776 struct ieee80211_mgmt *mgmt, size_t len);
1777 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1778 struct sta_info *sta,
1779 struct ieee80211_mgmt *mgmt,
1781 void ieee80211_process_addba_request(struct ieee80211_local *local,
1782 struct sta_info *sta,
1783 struct ieee80211_mgmt *mgmt,
1786 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1787 enum ieee80211_agg_stop_reason reason);
1788 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1789 enum ieee80211_agg_stop_reason reason);
1790 void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1791 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
1792 void ieee80211_ba_session_work(struct work_struct *work);
1793 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1794 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1796 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1800 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1801 struct ieee80211_supported_band *sband,
1802 const struct ieee80211_vht_cap *vht_cap_ie,
1803 struct sta_info *sta);
1804 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta);
1805 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
1806 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
1807 enum ieee80211_sta_rx_bandwidth
1808 ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
1809 enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta);
1810 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
1811 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
1812 struct ieee80211_mgmt *mgmt);
1813 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1814 struct sta_info *sta, u8 opmode,
1815 enum nl80211_band band);
1816 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1817 struct sta_info *sta, u8 opmode,
1818 enum nl80211_band band);
1819 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
1820 struct ieee80211_sta_vht_cap *vht_cap);
1821 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
1822 u16 vht_mask[NL80211_VHT_NSS_MAX]);
1824 /* Spectrum management */
1825 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1826 struct ieee80211_mgmt *mgmt,
1829 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
1830 * @sdata: the sdata of the interface which has received the frame
1831 * @elems: parsed 802.11 elements received with the frame
1832 * @current_band: indicates the current band
1833 * @sta_flags: contains information about own capabilities and restrictions
1834 * to decide which channel switch announcements can be accepted. Only the
1835 * following subset of &enum ieee80211_sta_flags are evaluated:
1836 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
1837 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
1838 * %IEEE80211_STA_DISABLE_160MHZ.
1839 * @bssid: the currently connected bssid (for reporting)
1840 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
1841 All of them will be filled with if success only.
1842 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
1844 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
1845 struct ieee802_11_elems *elems,
1846 enum nl80211_band current_band,
1847 u32 sta_flags, u8 *bssid,
1848 struct ieee80211_csa_ie *csa_ie);
1850 /* Suspend/resume and hw reconfiguration */
1851 int ieee80211_reconfig(struct ieee80211_local *local);
1852 void ieee80211_stop_device(struct ieee80211_local *local);
1854 int __ieee80211_suspend(struct ieee80211_hw *hw,
1855 struct cfg80211_wowlan *wowlan);
1857 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1859 struct ieee80211_local *local = hw_to_local(hw);
1861 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
1862 !test_bit(SCAN_COMPLETED, &local->scanning),
1863 "%s: resume with hardware scan still in progress\n",
1864 wiphy_name(hw->wiphy));
1866 return ieee80211_reconfig(hw_to_local(hw));
1869 /* utility functions/constants */
1870 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
1871 int ieee80211_frame_duration(enum nl80211_band band, size_t len,
1872 int rate, int erp, int short_preamble,
1874 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1875 bool bss_notify, bool enable_qos);
1876 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
1877 struct sta_info *sta, struct sk_buff *skb);
1879 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1880 struct sk_buff *skb, int tid,
1881 enum nl80211_band band);
1884 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1885 struct sk_buff *skb, int tid,
1886 enum nl80211_band band)
1889 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1893 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1894 struct sk_buff *skb, int tid)
1896 struct ieee80211_chanctx_conf *chanctx_conf;
1899 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1900 if (WARN_ON(!chanctx_conf)) {
1906 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
1907 chanctx_conf->def.chan->band);
1911 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
1912 struct sk_buff *skb)
1914 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1915 ieee80211_tx_skb_tid(sdata, skb, 7);
1918 u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
1919 struct ieee802_11_elems *elems,
1920 u64 filter, u32 crc);
1921 static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
1923 struct ieee802_11_elems *elems)
1925 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
1929 extern const int ieee802_1d_to_ac[8];
1931 static inline int ieee80211_ac_from_tid(int tid)
1933 return ieee802_1d_to_ac[tid & 7];
1936 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1937 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1938 void ieee80211_dynamic_ps_timer(unsigned long data);
1939 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1940 struct ieee80211_sub_if_data *sdata,
1942 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1943 struct ieee80211_hdr *hdr);
1944 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
1945 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
1947 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1948 unsigned long queues,
1949 enum queue_stop_reason reason,
1951 void ieee80211_stop_vif_queues(struct ieee80211_local *local,
1952 struct ieee80211_sub_if_data *sdata,
1953 enum queue_stop_reason reason);
1954 void ieee80211_wake_vif_queues(struct ieee80211_local *local,
1955 struct ieee80211_sub_if_data *sdata,
1956 enum queue_stop_reason reason);
1957 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1958 unsigned long queues,
1959 enum queue_stop_reason reason,
1961 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1962 enum queue_stop_reason reason,
1964 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1965 enum queue_stop_reason reason,
1967 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
1968 void ieee80211_add_pending_skb(struct ieee80211_local *local,
1969 struct sk_buff *skb);
1970 void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1971 struct sk_buff_head *skbs);
1972 void ieee80211_flush_queues(struct ieee80211_local *local,
1973 struct ieee80211_sub_if_data *sdata, bool drop);
1974 void __ieee80211_flush_queues(struct ieee80211_local *local,
1975 struct ieee80211_sub_if_data *sdata,
1976 unsigned int queues, bool drop);
1978 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
1981 * If quiescing is set, we are racing with __ieee80211_suspend.
1982 * __ieee80211_suspend flushes the workers after setting quiescing,
1983 * and we check quiescing / suspended before enqueing new workers.
1984 * We should abort the worker to avoid the races below.
1986 if (local->quiescing)
1990 * We might already be suspended if the following scenario occurs:
1991 * __ieee80211_suspend Control path
1993 * if (local->quiescing)
1995 * local->quiescing = true;
1996 * flush_workqueue();
1998 * local->suspended = true;
1999 * local->quiescing = false;
2000 * worker starts running...
2002 if (local->suspended)
2008 int ieee80211_txq_setup_flows(struct ieee80211_local *local);
2009 void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
2010 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
2011 struct sta_info *sta,
2012 struct txq_info *txq, int tid);
2013 void ieee80211_txq_purge(struct ieee80211_local *local,
2014 struct txq_info *txqi);
2015 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
2016 u16 transaction, u16 auth_alg, u16 status,
2017 const u8 *extra, size_t extra_len, const u8 *bssid,
2018 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
2020 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
2021 const u8 *bssid, u16 stype, u16 reason,
2022 bool send_frame, u8 *frame_buf);
2023 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
2025 struct ieee80211_scan_ies *ie_desc,
2026 const u8 *ie, size_t ie_len,
2027 u8 bands_used, u32 *rate_masks,
2028 struct cfg80211_chan_def *chandef);
2029 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
2030 const u8 *src, const u8 *dst,
2032 struct ieee80211_channel *chan,
2033 const u8 *ssid, size_t ssid_len,
2034 const u8 *ie, size_t ie_len,
2036 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata,
2037 const u8 *src, const u8 *dst,
2038 const u8 *ssid, size_t ssid_len,
2039 const u8 *ie, size_t ie_len,
2040 u32 ratemask, bool directed, u32 tx_flags,
2041 struct ieee80211_channel *channel, bool scan);
2043 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
2044 struct ieee802_11_elems *elems,
2045 enum nl80211_band band, u32 *basic_rates);
2046 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2047 enum ieee80211_smps_mode smps_mode);
2048 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2049 enum ieee80211_smps_mode smps_mode);
2050 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
2051 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
2053 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
2054 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2056 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2057 const struct cfg80211_chan_def *chandef,
2058 u16 prot_mode, bool rifs_mode);
2059 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2061 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2062 const struct cfg80211_chan_def *chandef);
2063 int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
2064 const struct ieee80211_supported_band *sband,
2065 const u8 *srates, int srates_len, u32 *rates);
2066 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
2067 struct sk_buff *skb, bool need_basic,
2068 enum nl80211_band band);
2069 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
2070 struct sk_buff *skb, bool need_basic,
2071 enum nl80211_band band);
2072 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
2074 /* channel management */
2075 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2076 struct cfg80211_chan_def *chandef);
2077 bool ieee80211_chandef_vht_oper(const struct ieee80211_vht_operation *oper,
2078 struct cfg80211_chan_def *chandef);
2079 u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
2082 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
2083 const struct cfg80211_chan_def *chandef,
2084 enum ieee80211_chanctx_mode mode);
2086 ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
2087 const struct cfg80211_chan_def *chandef,
2088 enum ieee80211_chanctx_mode mode,
2089 bool radar_required);
2091 ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata);
2092 int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);
2095 ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
2096 const struct cfg80211_chan_def *chandef,
2098 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
2099 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
2100 void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
2102 int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2103 struct ieee80211_chanctx *ctx);
2105 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2106 struct ieee80211_chanctx *chanctx);
2107 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2108 struct ieee80211_chanctx *ctx);
2109 bool ieee80211_is_radar_required(struct ieee80211_local *local);
2111 void ieee80211_dfs_cac_timer(unsigned long data);
2112 void ieee80211_dfs_cac_timer_work(struct work_struct *work);
2113 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2114 void ieee80211_dfs_radar_detected_work(struct work_struct *work);
2115 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2116 struct cfg80211_csa_settings *csa_settings);
2118 bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs);
2119 bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n);
2120 const struct ieee80211_cipher_scheme *
2121 ieee80211_cs_get(struct ieee80211_local *local, u32 cipher,
2122 enum nl80211_iftype iftype);
2123 int ieee80211_cs_headroom(struct ieee80211_local *local,
2124 struct cfg80211_crypto_settings *crypto,
2125 enum nl80211_iftype iftype);
2126 void ieee80211_recalc_dtim(struct ieee80211_local *local,
2127 struct ieee80211_sub_if_data *sdata);
2128 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2129 const struct cfg80211_chan_def *chandef,
2130 enum ieee80211_chanctx_mode chanmode,
2132 int ieee80211_max_num_channels(struct ieee80211_local *local);
2133 enum nl80211_chan_width ieee80211_get_sta_bw(struct ieee80211_sta *sta);
2134 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2135 struct ieee80211_chanctx *ctx);
2138 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2139 const u8 *peer, u8 action_code, u8 dialog_token,
2140 u16 status_code, u32 peer_capability,
2141 bool initiator, const u8 *extra_ies,
2142 size_t extra_ies_len);
2143 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2144 const u8 *peer, enum nl80211_tdls_operation oper);
2145 void ieee80211_tdls_peer_del_work(struct work_struct *wk);
2146 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2147 const u8 *addr, u8 oper_class,
2148 struct cfg80211_chan_def *chandef);
2149 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2150 struct net_device *dev,
2152 void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
2153 void ieee80211_tdls_chsw_work(struct work_struct *wk);
2155 extern const struct ethtool_ops ieee80211_ethtool_ops;
2157 #ifdef CONFIG_MAC80211_NOINLINE
2158 #define debug_noinline noinline
2160 #define debug_noinline
2163 #endif /* IEEE80211_I_H */