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 2013-2014 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>
37 struct ieee80211_local;
39 /* Maximum number of broadcast/multicast frames to buffer when some of the
40 * associated stations are using power saving. */
41 #define AP_MAX_BC_BUFFER 128
43 /* Maximum number of frames buffered to all STAs, including multicast frames.
44 * Note: increasing this limit increases the potential memory requirement. Each
45 * frame can be up to about 2 kB long. */
46 #define TOTAL_MAX_TX_BUFFER 512
48 /* Required encryption head and tailroom */
49 #define IEEE80211_ENCRYPT_HEADROOM 8
50 #define IEEE80211_ENCRYPT_TAILROOM 18
52 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
53 * reception of at least three fragmented frames. This limit can be increased
54 * by changing this define, at the cost of slower frame reassembly and
55 * increased memory use (about 2 kB of RAM per entry). */
56 #define IEEE80211_FRAGMENT_MAX 4
58 /* power level hasn't been configured (or set to automatic) */
59 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN
62 * Some APs experience problems when working with U-APSD. Decreasing the
63 * probability of that happening by using legacy mode for all ACs but VO isn't
66 * Cisco 4410N originally forced us to enable VO by default only because it
67 * treated non-VO ACs as legacy.
69 * However some APs (notably Netgear R7000) silently reclassify packets to
70 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval
71 * clients would never see some frames (e.g. ARP responses) or would fetch them
72 * accidentally after a long time.
74 * It makes little sense to enable u-APSD queues by default because it needs
75 * userspace applications to be aware of it to actually take advantage of the
76 * possible additional powersavings. Implicitly depending on driver autotrigger
77 * frame support doesn't make much sense.
79 #define IEEE80211_DEFAULT_UAPSD_QUEUES 0
81 #define IEEE80211_DEFAULT_MAX_SP_LEN \
82 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
84 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
86 struct ieee80211_fragment_entry {
87 unsigned long first_frag_time;
89 unsigned int rx_queue;
90 unsigned int last_frag;
91 unsigned int extra_len;
92 struct sk_buff_head skb_list;
93 int ccmp; /* Whether fragments were encrypted with CCMP */
94 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
98 struct ieee80211_bss {
99 u32 device_ts_beacon, device_ts_presp;
102 bool uapsd_supported;
104 #define IEEE80211_MAX_SUPP_RATES 32
105 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
106 size_t supp_rates_len;
107 struct ieee80211_rate *beacon_rate;
110 * During association, we save an ERP value from a probe response so
111 * that we can feed ERP info to the driver when handling the
112 * association completes. these fields probably won't be up-to-date
113 * otherwise, you probably don't want to use them.
118 /* Keep track of the corruption of the last beacon/probe response. */
121 /* Keep track of what bits of information we have valid info for. */
126 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
127 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
128 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
130 * These are bss flags that are attached to a bss in the
131 * @corrupt_data field of &struct ieee80211_bss.
133 enum ieee80211_bss_corrupt_data_flags {
134 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
135 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
139 * enum ieee80211_valid_data_flags - BSS valid data flags
140 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
141 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
142 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
144 * These are bss flags that are attached to a bss in the
145 * @valid_data field of &struct ieee80211_bss. They show which parts
146 * of the data structure were received as a result of an un-corrupted
147 * beacon/probe response.
149 enum ieee80211_bss_valid_data_flags {
150 IEEE80211_BSS_VALID_WMM = BIT(1),
151 IEEE80211_BSS_VALID_RATES = BIT(2),
152 IEEE80211_BSS_VALID_ERP = BIT(3)
155 typedef unsigned __bitwise__ ieee80211_tx_result;
156 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
157 #define TX_DROP ((__force ieee80211_tx_result) 1u)
158 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
160 #define IEEE80211_TX_UNICAST BIT(1)
161 #define IEEE80211_TX_PS_BUFFERED BIT(2)
163 struct ieee80211_tx_data {
165 struct sk_buff_head skbs;
166 struct ieee80211_local *local;
167 struct ieee80211_sub_if_data *sdata;
168 struct sta_info *sta;
169 struct ieee80211_key *key;
170 struct ieee80211_tx_rate rate;
176 typedef unsigned __bitwise__ ieee80211_rx_result;
177 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
178 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
179 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
180 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
183 * enum ieee80211_packet_rx_flags - packet RX flags
184 * @IEEE80211_RX_AMSDU: a-MSDU packet
185 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
186 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
188 * These are per-frame flags that are attached to a frame in the
189 * @rx_flags field of &struct ieee80211_rx_status.
191 enum ieee80211_packet_rx_flags {
192 IEEE80211_RX_AMSDU = BIT(3),
193 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
194 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
198 * enum ieee80211_rx_flags - RX data flags
200 * @IEEE80211_RX_CMNTR: received on cooked monitor already
201 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
202 * to cfg80211_report_obss_beacon().
204 * These flags are used across handling multiple interfaces
205 * for a single frame.
207 enum ieee80211_rx_flags {
208 IEEE80211_RX_CMNTR = BIT(0),
209 IEEE80211_RX_BEACON_REPORTED = BIT(1),
212 struct ieee80211_rx_data {
213 struct napi_struct *napi;
215 struct ieee80211_local *local;
216 struct ieee80211_sub_if_data *sdata;
217 struct sta_info *sta;
218 struct ieee80211_key *key;
223 * Index into sequence numbers array, 0..16
224 * since the last (16) is used for non-QoS,
225 * will be 16 on non-QoS frames.
230 * Index into the security IV/PN arrays, 0..16
231 * since the last (16) is used for CCMP-encrypted
232 * management frames, will be set to 16 on mgmt
233 * frames and 0 on non-QoS frames.
241 struct ieee80211_csa_settings {
242 const u16 *counter_offsets_beacon;
243 const u16 *counter_offsets_presp;
245 int n_counter_offsets_beacon;
246 int n_counter_offsets_presp;
253 int head_len, tail_len;
254 struct ieee80211_meshconf_ie *meshconf;
255 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
256 u8 csa_current_counter;
257 struct rcu_head rcu_head;
261 struct rcu_head rcu_head;
263 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
268 /* yes, this looks ugly, but guarantees that we can later use
270 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
271 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
272 __aligned(__alignof__(unsigned long));
273 struct sk_buff_head bc_buf;
274 atomic_t num_sta_ps; /* number of stations in PS mode */
279 struct ieee80211_if_ap {
280 struct beacon_data __rcu *beacon;
281 struct probe_resp __rcu *probe_resp;
283 /* to be used after channel switch. */
284 struct cfg80211_beacon_data *next_beacon;
285 struct list_head vlans; /* write-protected with RTNL and local->mtx */
288 atomic_t num_mcast_sta; /* number of stations receiving multicast */
289 enum ieee80211_smps_mode req_smps, /* requested smps mode */
290 driver_smps_mode; /* smps mode request */
292 struct work_struct request_smps_work;
295 struct ieee80211_if_wds {
296 struct sta_info *sta;
297 u8 remote_addr[ETH_ALEN];
300 struct ieee80211_if_vlan {
301 struct list_head list; /* write-protected with RTNL and local->mtx */
303 /* used for all tx if the VLAN is configured to 4-addr mode */
304 struct sta_info __rcu *sta;
308 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
309 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
310 __u32 fwded_frames; /* Mesh total forwarded frames */
311 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
312 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
313 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
316 #define PREQ_Q_F_START 0x1
317 #define PREQ_Q_F_REFRESH 0x2
318 struct mesh_preq_queue {
319 struct list_head list;
324 struct ieee80211_roc_work {
325 struct list_head list;
326 struct list_head dependents;
328 struct delayed_work work;
330 struct ieee80211_sub_if_data *sdata;
332 struct ieee80211_channel *chan;
334 bool started, abort, hw_begun, notified;
338 unsigned long hw_start_time;
340 u32 duration, req_duration;
341 struct sk_buff *frame;
342 u64 cookie, mgmt_tx_cookie;
343 enum ieee80211_roc_type type;
346 /* flags used in struct ieee80211_if_managed.flags */
347 enum ieee80211_sta_flags {
348 IEEE80211_STA_CONNECTION_POLL = BIT(1),
349 IEEE80211_STA_CONTROL_PORT = BIT(2),
350 IEEE80211_STA_DISABLE_HT = BIT(4),
351 IEEE80211_STA_MFP_ENABLED = BIT(6),
352 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
353 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
354 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
355 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
356 IEEE80211_STA_DISABLE_VHT = BIT(11),
357 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
358 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
359 IEEE80211_STA_DISABLE_WMM = BIT(14),
360 IEEE80211_STA_ENABLE_RRM = BIT(15),
363 struct ieee80211_mgd_auth_data {
364 struct cfg80211_bss *bss;
365 unsigned long timeout;
367 u16 algorithm, expected_transaction;
369 u8 key[WLAN_KEY_LEN_WEP104];
372 bool timeout_started;
374 u16 sae_trans, sae_status;
379 struct ieee80211_mgd_assoc_data {
380 struct cfg80211_bss *bss;
381 const u8 *supp_rates;
383 unsigned long timeout;
387 u8 prev_bssid[ETH_ALEN];
388 u8 ssid[IEEE80211_MAX_SSID_LEN];
394 bool timeout_started;
398 struct ieee80211_vht_cap ap_vht_cap;
404 struct ieee80211_sta_tx_tspec {
405 /* timestamp of the first packet in the time slice */
406 unsigned long time_slice_start;
408 u32 admitted_time; /* in usecs, unlike over the air */
410 s8 up; /* signed to be able to invalidate with -1 during teardown */
412 /* consumed TX time in microseconds in the time slice */
413 u32 consumed_tx_time;
415 TX_TSPEC_ACTION_NONE = 0,
416 TX_TSPEC_ACTION_DOWNGRADE,
417 TX_TSPEC_ACTION_STOP_DOWNGRADE,
422 struct ieee80211_if_managed {
423 struct timer_list timer;
424 struct timer_list conn_mon_timer;
425 struct timer_list bcn_mon_timer;
426 struct timer_list chswitch_timer;
427 struct work_struct monitor_work;
428 struct work_struct chswitch_work;
429 struct work_struct beacon_connection_loss_work;
430 struct work_struct csa_connection_drop_work;
432 unsigned long beacon_timeout;
433 unsigned long probe_timeout;
434 int probe_send_count;
435 bool nullfunc_failed;
436 bool connection_loss;
438 struct cfg80211_bss *associated;
439 struct ieee80211_mgd_auth_data *auth_data;
440 struct ieee80211_mgd_assoc_data *assoc_data;
446 bool powersave; /* powersave requested for this iface */
447 bool broken_ap; /* AP is broken -- turn off powersave */
450 enum ieee80211_smps_mode req_smps, /* requested smps mode */
451 driver_smps_mode; /* smps mode request */
453 struct work_struct request_smps_work;
457 bool csa_waiting_bcn;
458 bool csa_ignored_same_chan;
460 bool beacon_crc_valid;
464 bool status_received;
468 IEEE80211_MFP_DISABLED,
469 IEEE80211_MFP_OPTIONAL,
470 IEEE80211_MFP_REQUIRED
471 } mfp; /* management frame protection */
474 * Bitmask of enabled u-apsd queues,
475 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
478 unsigned int uapsd_queues;
481 * Maximum number of buffered frames AP can deliver during a
482 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
483 * Needs a new association to take effect.
485 unsigned int uapsd_max_sp_len;
487 int wmm_last_param_set;
493 /* Signal strength from the last Beacon frame in the current BSS. */
494 int last_beacon_signal;
497 * Weighted average of the signal strength from Beacon frames in the
498 * current BSS. This is in units of 1/16 of the signal unit to maintain
499 * accuracy and to speed up calculations, i.e., the value need to be
500 * divided by 16 to get the actual value.
502 int ave_beacon_signal;
505 * Number of Beacon frames used in ave_beacon_signal. This can be used
506 * to avoid generating less reliable cqm events that would be based
507 * only on couple of received frames.
509 unsigned int count_beacon_signal;
512 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
513 * that triggered a cqm event. 0 indicates that no event has been
514 * generated for the current association.
516 int last_cqm_event_signal;
519 * State variables for keeping track of RSSI of the AP currently
520 * connected to and informing driver when RSSI has gone
521 * below/above a certain threshold.
523 int rssi_min_thold, rssi_max_thold;
524 int last_ave_beacon_signal;
526 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
527 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
528 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
529 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
532 u8 tdls_peer[ETH_ALEN] __aligned(2);
533 struct delayed_work tdls_peer_del_work;
534 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
535 struct sk_buff *teardown_skb; /* A copy to send through the AP */
536 spinlock_t teardown_lock; /* To lock changing teardown_skb */
537 bool tdls_chan_switch_prohibited;
539 /* WMM-AC TSPEC support */
540 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
541 /* Use a separate work struct so that we can do something here
542 * while the sdata->work is flushing the queues, for example.
543 * otherwise, in scenarios where we hardly get any traffic out
544 * on the BE queue, but there's a lot of VO traffic, we might
545 * get stuck in a downgraded situation and flush takes forever.
547 struct delayed_work tx_tspec_wk;
550 struct ieee80211_if_ibss {
551 struct timer_list timer;
552 struct work_struct csa_connection_drop_work;
554 unsigned long last_scan_completed;
563 bool userspace_handles_dfs;
565 u8 bssid[ETH_ALEN] __aligned(2);
566 u8 ssid[IEEE80211_MAX_SSID_LEN];
569 struct cfg80211_chan_def chandef;
571 unsigned long ibss_join_req;
572 /* probe response/beacon for IBSS */
573 struct beacon_data __rcu *presp;
575 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
576 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
578 spinlock_t incomplete_lock;
579 struct list_head incomplete_stations;
582 IEEE80211_IBSS_MLME_SEARCH,
583 IEEE80211_IBSS_MLME_JOINED,
588 * struct ieee80211_if_ocb - OCB mode state
590 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
591 * @wrkq_flags: OCB deferred task action
592 * @incomplete_lock: delayed STA insertion lock
593 * @incomplete_stations: list of STAs waiting for delayed insertion
594 * @joined: indication if the interface is connected to an OCB network
596 struct ieee80211_if_ocb {
597 struct timer_list housekeeping_timer;
598 unsigned long wrkq_flags;
600 spinlock_t incomplete_lock;
601 struct list_head incomplete_stations;
607 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
609 * these declarations define the interface, which enables
610 * vendor-specific mesh synchronization
613 struct ieee802_11_elems;
614 struct ieee80211_mesh_sync_ops {
615 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
617 struct ieee80211_mgmt *mgmt,
618 struct ieee802_11_elems *elems,
619 struct ieee80211_rx_status *rx_status);
621 /* should be called with beacon_data under RCU read lock */
622 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata,
623 struct beacon_data *beacon);
624 /* add other framework functions here */
627 struct mesh_csa_settings {
628 struct rcu_head rcu_head;
629 struct cfg80211_csa_settings settings;
632 struct ieee80211_if_mesh {
633 struct timer_list housekeeping_timer;
634 struct timer_list mesh_path_timer;
635 struct timer_list mesh_path_root_timer;
637 unsigned long wrkq_flags;
638 unsigned long mbss_changed;
640 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
642 /* Active Path Selection Protocol Identifier */
644 /* Active Path Selection Metric Identifier */
646 /* Congestion Control Mode Identifier */
648 /* Synchronization Protocol Identifier */
650 /* Authentication Protocol Identifier */
652 /* Local mesh Sequence Number */
654 /* Last used PREQ ID */
657 /* Timestamp of last SN update */
658 unsigned long last_sn_update;
659 /* Time when it's ok to send next PERR */
660 unsigned long next_perr;
661 /* Timestamp of last PREQ sent */
662 unsigned long last_preq;
663 struct mesh_rmc *rmc;
664 spinlock_t mesh_preq_queue_lock;
665 struct mesh_preq_queue preq_queue;
667 struct mesh_stats mshstats;
668 struct mesh_config mshcfg;
669 atomic_t estab_plinks;
671 bool accepting_plinks;
673 struct beacon_data __rcu *beacon;
677 IEEE80211_MESH_SEC_NONE = 0x0,
678 IEEE80211_MESH_SEC_AUTHED = 0x1,
679 IEEE80211_MESH_SEC_SECURED = 0x2,
682 /* Extensible Synchronization Framework */
683 const struct ieee80211_mesh_sync_ops *sync_ops;
684 s64 sync_offset_clockdrift_max;
685 spinlock_t sync_offset_lock;
687 /* mesh power save */
688 enum nl80211_mesh_power_mode nonpeer_pm;
689 int ps_peers_light_sleep;
690 int ps_peers_deep_sleep;
692 /* Channel Switching Support */
693 struct mesh_csa_settings __rcu *csa;
695 IEEE80211_MESH_CSA_ROLE_NONE,
696 IEEE80211_MESH_CSA_ROLE_INIT,
697 IEEE80211_MESH_CSA_ROLE_REPEATER,
702 /* offset from skb->data while building IE */
706 #ifdef CONFIG_MAC80211_MESH
707 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
708 do { (msh)->mshstats.name++; } while (0)
710 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
715 * enum ieee80211_sub_if_data_flags - virtual interface flags
717 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
718 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
719 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
720 * associated stations and deliver multicast frames both
721 * back to wireless media and to the local net stack.
722 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
723 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
725 enum ieee80211_sub_if_data_flags {
726 IEEE80211_SDATA_ALLMULTI = BIT(0),
727 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
728 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
729 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
730 IEEE80211_SDATA_IN_DRIVER = BIT(5),
734 * enum ieee80211_sdata_state_bits - virtual interface state bits
735 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
736 * mirrors netif_running() but is separate for interface type
737 * change handling while the interface is up
738 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
739 * mode, so queues are stopped
740 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
741 * to offchannel, reset when offchannel returns
743 enum ieee80211_sdata_state_bits {
745 SDATA_STATE_OFFCHANNEL,
746 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
750 * enum ieee80211_chanctx_mode - channel context configuration mode
752 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
753 * multiple interfaces
754 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
755 * only by a single interface. This can be used for example for
756 * non-fixed channel IBSS.
758 enum ieee80211_chanctx_mode {
759 IEEE80211_CHANCTX_SHARED,
760 IEEE80211_CHANCTX_EXCLUSIVE
764 * enum ieee80211_chanctx_replace_state - channel context replacement state
766 * This is used for channel context in-place reservations that require channel
767 * context switch/swap.
769 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
770 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
771 * by a (not yet registered) channel context pointed by %replace_ctx.
772 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
773 * replaces an existing channel context pointed to by %replace_ctx.
775 enum ieee80211_chanctx_replace_state {
776 IEEE80211_CHANCTX_REPLACE_NONE,
777 IEEE80211_CHANCTX_WILL_BE_REPLACED,
778 IEEE80211_CHANCTX_REPLACES_OTHER,
781 struct ieee80211_chanctx {
782 struct list_head list;
783 struct rcu_head rcu_head;
785 struct list_head assigned_vifs;
786 struct list_head reserved_vifs;
788 enum ieee80211_chanctx_replace_state replace_state;
789 struct ieee80211_chanctx *replace_ctx;
791 enum ieee80211_chanctx_mode mode;
794 struct ieee80211_chanctx_conf conf;
797 struct mac80211_qos_map {
798 struct cfg80211_qos_map qos_map;
799 struct rcu_head rcu_head;
802 enum txq_info_flags {
808 struct sk_buff_head queue;
812 struct ieee80211_txq txq;
815 struct ieee80211_sub_if_data {
816 struct list_head list;
818 struct wireless_dev wdev;
821 struct list_head key_list;
823 /* count for keys needing tailroom space allocation */
824 int crypto_tx_tailroom_needed_cnt;
825 int crypto_tx_tailroom_pending_dec;
826 struct delayed_work dec_tailroom_needed_wk;
828 struct net_device *dev;
829 struct ieee80211_local *local;
837 /* Fragment table for host-based reassembly */
838 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
839 unsigned int fragment_next;
841 /* TID bitmap for NoAck policy */
844 /* bit field of ACM bits (BIT(802.1D tag)) */
847 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
848 struct ieee80211_key __rcu *default_unicast_key;
849 struct ieee80211_key __rcu *default_multicast_key;
850 struct ieee80211_key __rcu *default_mgmt_key;
853 __be16 control_port_protocol;
854 bool control_port_no_encrypt;
855 int encrypt_headroom;
857 atomic_t txqs_len[IEEE80211_NUM_ACS];
858 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
859 struct mac80211_qos_map __rcu *qos_map;
861 struct work_struct csa_finalize_work;
862 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
863 struct cfg80211_chan_def csa_chandef;
865 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
866 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
868 /* context reservation -- protected with chanctx_mtx */
869 struct ieee80211_chanctx *reserved_chanctx;
870 struct cfg80211_chan_def reserved_chandef;
871 bool reserved_radar_required;
874 /* used to reconfigure hardware SM PS */
875 struct work_struct recalc_smps;
877 struct work_struct work;
878 struct sk_buff_head skb_queue;
881 enum ieee80211_smps_mode smps_mode;
883 int user_power_level; /* in dBm */
884 int ap_power_level; /* in dBm */
887 struct delayed_work dfs_cac_timer_work;
890 * AP this belongs to: self in AP mode and
891 * corresponding AP in VLAN mode, NULL for
892 * all others (might be needed later in IBSS)
894 struct ieee80211_if_ap *bss;
896 /* bitmap of allowed (non-MCS) rate indexes for rate control */
897 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
899 bool rc_has_mcs_mask[IEEE80211_NUM_BANDS];
900 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
903 struct ieee80211_if_ap ap;
904 struct ieee80211_if_wds wds;
905 struct ieee80211_if_vlan vlan;
906 struct ieee80211_if_managed mgd;
907 struct ieee80211_if_ibss ibss;
908 struct ieee80211_if_mesh mesh;
909 struct ieee80211_if_ocb ocb;
913 #ifdef CONFIG_MAC80211_DEBUGFS
915 struct dentry *subdir_stations;
916 struct dentry *default_unicast_key;
917 struct dentry *default_multicast_key;
918 struct dentry *default_mgmt_key;
922 /* must be last, dynamically sized area in this! */
923 struct ieee80211_vif vif;
927 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
929 return container_of(p, struct ieee80211_sub_if_data, vif);
932 static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
933 __acquires(&sdata->wdev.mtx)
935 mutex_lock(&sdata->wdev.mtx);
936 __acquire(&sdata->wdev.mtx);
939 static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
940 __releases(&sdata->wdev.mtx)
942 mutex_unlock(&sdata->wdev.mtx);
943 __release(&sdata->wdev.mtx);
946 #define sdata_dereference(p, sdata) \
947 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
950 sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
952 lockdep_assert_held(&sdata->wdev.mtx);
955 static inline enum ieee80211_band
956 ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
958 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
959 struct ieee80211_chanctx_conf *chanctx_conf;
962 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
963 if (!WARN_ON(!chanctx_conf))
964 band = chanctx_conf->def.chan->band;
971 ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
973 switch (chandef->width) {
974 case NL80211_CHAN_WIDTH_5:
976 case NL80211_CHAN_WIDTH_10:
984 ieee80211_vif_get_shift(struct ieee80211_vif *vif)
986 struct ieee80211_chanctx_conf *chanctx_conf;
990 chanctx_conf = rcu_dereference(vif->chanctx_conf);
992 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
998 struct ieee80211_rx_agg {
1003 enum sdata_queue_type {
1004 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
1005 IEEE80211_SDATA_QUEUE_AGG_START = 1,
1006 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
1007 IEEE80211_SDATA_QUEUE_RX_AGG_START = 3,
1008 IEEE80211_SDATA_QUEUE_RX_AGG_STOP = 4,
1009 IEEE80211_SDATA_QUEUE_TDLS_CHSW = 5,
1013 IEEE80211_RX_MSG = 1,
1014 IEEE80211_TX_STATUS_MSG = 2,
1017 enum queue_stop_reason {
1018 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1019 IEEE80211_QUEUE_STOP_REASON_PS,
1020 IEEE80211_QUEUE_STOP_REASON_CSA,
1021 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1022 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1023 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1024 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1025 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1026 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1027 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1029 IEEE80211_QUEUE_STOP_REASONS,
1032 #ifdef CONFIG_MAC80211_LEDS
1033 struct tpt_led_trigger {
1035 const struct ieee80211_tpt_blink *blink_table;
1036 unsigned int blink_table_len;
1037 struct timer_list timer;
1038 unsigned long prev_traffic;
1039 unsigned long tx_bytes, rx_bytes;
1040 unsigned int active, want;
1046 * mac80211 scan flags - currently active scan mode
1048 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1049 * well be on the operating channel
1050 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1051 * determine if we are on the operating channel or not
1052 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1053 * channel. This should not interrupt normal traffic.
1054 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1055 * that the scan completed.
1056 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1057 * a scan complete for an aborted scan.
1058 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1064 SCAN_ONCHANNEL_SCANNING,
1071 * enum mac80211_scan_state - scan state machine states
1073 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1074 * determines if we should keep on scanning or switch back to the
1076 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1077 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1078 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1080 * @SCAN_RESUME: Resume the scan and scan the next channel
1081 * @SCAN_ABORT: Abort the scan and go back to operating channel
1083 enum mac80211_scan_state {
1092 struct ieee80211_local {
1093 /* embed the driver visible part.
1094 * don't cast (use the static inlines below), but we keep
1095 * it first anyway so they become a no-op */
1096 struct ieee80211_hw hw;
1098 const struct ieee80211_ops *ops;
1101 * private workqueue to mac80211. mac80211 makes this accessible
1102 * via ieee80211_queue_work()
1104 struct workqueue_struct *workqueue;
1106 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1107 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1108 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1109 spinlock_t queue_stop_reason_lock;
1112 int monitors, cooked_mntrs;
1113 /* number of interfaces with corresponding FIF_ flags */
1114 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1117 unsigned int filter_flags; /* FIF_* */
1119 bool wiphy_ciphers_allocated;
1123 /* protects the aggregated multicast list and filter calls */
1124 spinlock_t filter_lock;
1126 /* used for uploading changed mc list */
1127 struct work_struct reconfig_filter;
1129 /* aggregated multicast list */
1130 struct netdev_hw_addr_list mc_list;
1132 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1135 * suspended is true if we finished all the suspend _and_ we have
1136 * not yet come up from resume. This is to be used by mac80211
1137 * to ensure driver sanity during suspend and mac80211's own
1138 * sanity. It can eventually be used for WoW as well.
1143 * Resuming is true while suspended, but when we're reprogramming the
1144 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1145 * again even though some other parts of the stack are still suspended
1146 * and we still drop received frames to avoid waking the stack.
1151 * quiescing is true during the suspend process _only_ to
1152 * ease timer cancelling etc.
1156 /* device is started */
1159 /* device is during a HW reconfig */
1162 /* wowlan is enabled -- don't reconfig on resume */
1165 struct work_struct radar_detected_work;
1167 /* number of RX chains the hardware has */
1170 int tx_headroom; /* required headroom for hardware/radiotap */
1172 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1173 * added to skb_queue will be processed, but frames in
1174 * skb_queue_unreliable may be dropped if the total length of these
1175 * queues increases over the limit. */
1176 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1177 struct tasklet_struct tasklet;
1178 struct sk_buff_head skb_queue;
1179 struct sk_buff_head skb_queue_unreliable;
1181 spinlock_t rx_path_lock;
1185 * The mutex only protects the list, hash table and
1186 * counter, reads are done with RCU.
1188 struct mutex sta_mtx;
1189 spinlock_t tim_lock;
1190 unsigned long num_sta;
1191 struct list_head sta_list;
1192 struct rhashtable sta_hash;
1193 struct timer_list sta_cleanup;
1196 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1197 struct tasklet_struct tx_pending_tasklet;
1199 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1201 /* number of interfaces with allmulti RX */
1202 atomic_t iff_allmultis;
1204 struct rate_control_ref *rate_ctrl;
1206 struct crypto_cipher *wep_tx_tfm;
1207 struct crypto_cipher *wep_rx_tfm;
1211 struct list_head interfaces;
1212 struct mutex iflist_mtx;
1215 * Key mutex, protects sdata's key_list and sta_info's
1216 * key pointers (write access, they're RCU.)
1218 struct mutex key_mtx;
1220 /* mutex for scan and work locking */
1223 /* Scanning and BSS list */
1224 unsigned long scanning;
1225 struct cfg80211_ssid scan_ssid;
1226 struct cfg80211_scan_request *int_scan_req;
1227 struct cfg80211_scan_request __rcu *scan_req;
1228 struct ieee80211_scan_request *hw_scan_req;
1229 struct cfg80211_chan_def scan_chandef;
1230 enum ieee80211_band hw_scan_band;
1231 int scan_channel_idx;
1233 int hw_scan_ies_bufsize;
1235 struct work_struct sched_scan_stopped_work;
1236 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1237 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1238 u8 scan_addr[ETH_ALEN];
1240 unsigned long leave_oper_channel_time;
1241 enum mac80211_scan_state next_scan_state;
1242 struct delayed_work scan_work;
1243 struct ieee80211_sub_if_data __rcu *scan_sdata;
1244 /* For backward compatibility only -- do not use */
1245 struct cfg80211_chan_def _oper_chandef;
1247 /* Temporary remain-on-channel for off-channel operations */
1248 struct ieee80211_channel *tmp_channel;
1250 /* channel contexts */
1251 struct list_head chanctx_list;
1252 struct mutex chanctx_mtx;
1254 #ifdef CONFIG_MAC80211_LEDS
1255 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1256 struct led_trigger tpt_led;
1257 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1258 atomic_t radio_led_active, tpt_led_active;
1259 struct tpt_led_trigger *tpt_led_trigger;
1262 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1264 /* dot11CountersTable */
1265 u32 dot11TransmittedFragmentCount;
1266 u32 dot11MulticastTransmittedFrameCount;
1267 u32 dot11FailedCount;
1268 u32 dot11RetryCount;
1269 u32 dot11MultipleRetryCount;
1270 u32 dot11FrameDuplicateCount;
1271 u32 dot11ReceivedFragmentCount;
1272 u32 dot11MulticastReceivedFrameCount;
1273 u32 dot11TransmittedFrameCount;
1275 /* TX/RX handler statistics */
1276 unsigned int tx_handlers_drop;
1277 unsigned int tx_handlers_queued;
1278 unsigned int tx_handlers_drop_wep;
1279 unsigned int tx_handlers_drop_not_assoc;
1280 unsigned int tx_handlers_drop_unauth_port;
1281 unsigned int rx_handlers_drop;
1282 unsigned int rx_handlers_queued;
1283 unsigned int rx_handlers_drop_nullfunc;
1284 unsigned int rx_handlers_drop_defrag;
1285 unsigned int tx_expand_skb_head;
1286 unsigned int tx_expand_skb_head_cloned;
1287 unsigned int rx_expand_skb_head_defrag;
1288 unsigned int rx_handlers_fragments;
1289 unsigned int tx_status_drop;
1290 #define I802_DEBUG_INC(c) (c)++
1291 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1292 #define I802_DEBUG_INC(c) do { } while (0)
1293 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1296 int total_ps_buffered; /* total number of all buffered unicast and
1297 * multicast packets for power saving stations
1301 bool offchannel_ps_enabled;
1303 * PS can only be enabled when we have exactly one managed
1304 * interface (and monitors) in PS, this then points there.
1306 struct ieee80211_sub_if_data *ps_sdata;
1307 struct work_struct dynamic_ps_enable_work;
1308 struct work_struct dynamic_ps_disable_work;
1309 struct timer_list dynamic_ps_timer;
1310 struct notifier_block network_latency_notifier;
1311 struct notifier_block ifa_notifier;
1312 struct notifier_block ifa6_notifier;
1315 * The dynamic ps timeout configured from user space via WEXT -
1316 * this will override whatever chosen by mac80211 internally.
1318 int dynamic_ps_forced_timeout;
1320 int user_power_level; /* in dBm, for all interfaces */
1322 enum ieee80211_smps_mode smps_mode;
1324 struct work_struct restart_work;
1326 #ifdef CONFIG_MAC80211_DEBUGFS
1327 struct local_debugfsdentries {
1328 struct dentry *rcdir;
1329 struct dentry *keys;
1334 * Remain-on-channel support
1336 struct list_head roc_list;
1337 struct work_struct hw_roc_start, hw_roc_done;
1338 unsigned long hw_roc_start_time;
1339 u64 roc_cookie_counter;
1341 struct idr ack_status_frames;
1342 spinlock_t ack_status_lock;
1344 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1346 /* virtual monitor interface */
1347 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1348 struct cfg80211_chan_def monitor_chandef;
1350 /* extended capabilities provided by mac80211 */
1354 static inline struct ieee80211_sub_if_data *
1355 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1357 return netdev_priv(dev);
1360 static inline struct ieee80211_sub_if_data *
1361 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1363 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1366 /* this struct represents 802.11n's RA/TID combination */
1367 struct ieee80211_ra_tid {
1372 /* this struct holds the value parsing from channel switch IE */
1373 struct ieee80211_csa_ie {
1374 struct cfg80211_chan_def chandef;
1381 /* Parsed Information Elements */
1382 struct ieee802_11_elems {
1386 /* pointers to IEs */
1387 const struct ieee80211_tdls_lnkie *lnk_id;
1388 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1389 const u8 *ext_capab;
1391 const u8 *supp_rates;
1392 const u8 *ds_params;
1393 const struct ieee80211_tim_ie *tim;
1394 const u8 *challenge;
1397 const u8 *ext_supp_rates;
1399 const u8 *wmm_param;
1400 const struct ieee80211_ht_cap *ht_cap_elem;
1401 const struct ieee80211_ht_operation *ht_operation;
1402 const struct ieee80211_vht_cap *vht_cap_elem;
1403 const struct ieee80211_vht_operation *vht_operation;
1404 const struct ieee80211_meshconf_ie *mesh_config;
1407 const __le16 *awake_window;
1411 const struct ieee80211_rann_ie *rann;
1412 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1413 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1414 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1415 const u8 *country_elem;
1416 const u8 *pwr_constr_elem;
1417 const u8 *cisco_dtpc_elem;
1418 const struct ieee80211_timeout_interval_ie *timeout_int;
1419 const u8 *opmode_notif;
1420 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1421 const struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1423 /* length of them, respectively */
1430 u8 ext_supp_rates_len;
1438 u8 country_elem_len;
1440 /* whether a parse error occurred while retrieving these elements */
1444 static inline struct ieee80211_local *hw_to_local(
1445 struct ieee80211_hw *hw)
1447 return container_of(hw, struct ieee80211_local, hw);
1450 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1452 return container_of(txq, struct txq_info, txq);
1455 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1457 return ether_addr_equal(raddr, addr) ||
1458 is_broadcast_ether_addr(raddr);
1462 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1464 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1465 status->flag & RX_FLAG_MACTIME_END);
1466 return status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END);
1469 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1470 struct ieee80211_rx_status *status,
1471 unsigned int mpdu_len,
1472 unsigned int mpdu_offset);
1473 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1474 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1475 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1477 void ieee80211_configure_filter(struct ieee80211_local *local);
1478 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1481 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1482 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1483 struct cfg80211_auth_request *req);
1484 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1485 struct cfg80211_assoc_request *req);
1486 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1487 struct cfg80211_deauth_request *req);
1488 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1489 struct cfg80211_disassoc_request *req);
1490 void ieee80211_send_pspoll(struct ieee80211_local *local,
1491 struct ieee80211_sub_if_data *sdata);
1492 void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
1493 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1494 int ieee80211_max_network_latency(struct notifier_block *nb,
1495 unsigned long data, void *dummy);
1496 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1497 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1498 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1499 struct sk_buff *skb);
1500 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1501 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1502 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1503 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1504 __le16 fc, bool acked);
1505 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1506 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1507 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1510 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1511 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1512 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1513 const u8 *bssid, const u8 *addr, u32 supp_rates);
1514 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1515 struct cfg80211_ibss_params *params);
1516 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1517 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1518 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1519 struct sk_buff *skb);
1520 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1521 struct cfg80211_csa_settings *csa_settings);
1522 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
1523 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1526 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1527 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1528 const u8 *bssid, const u8 *addr, u32 supp_rates);
1529 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1530 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1531 struct ocb_setup *setup);
1532 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1535 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1536 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1537 struct sk_buff *skb);
1538 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1539 struct cfg80211_csa_settings *csa_settings);
1540 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
1542 /* scan/BSS handling */
1543 void ieee80211_scan_work(struct work_struct *work);
1544 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1545 const u8 *ssid, u8 ssid_len,
1546 struct ieee80211_channel **channels,
1547 unsigned int n_channels,
1548 enum nl80211_bss_scan_width scan_width);
1549 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1550 struct cfg80211_scan_request *req);
1551 void ieee80211_scan_cancel(struct ieee80211_local *local);
1552 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1553 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1555 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1556 struct ieee80211_bss *
1557 ieee80211_bss_info_update(struct ieee80211_local *local,
1558 struct ieee80211_rx_status *rx_status,
1559 struct ieee80211_mgmt *mgmt,
1561 struct ieee802_11_elems *elems,
1562 struct ieee80211_channel *channel);
1563 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1564 struct ieee80211_bss *bss);
1566 /* scheduled scan handling */
1568 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1569 struct cfg80211_sched_scan_request *req);
1570 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1571 struct cfg80211_sched_scan_request *req);
1572 int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
1573 void ieee80211_sched_scan_end(struct ieee80211_local *local);
1574 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1576 /* off-channel helpers */
1577 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1578 void ieee80211_offchannel_return(struct ieee80211_local *local);
1579 void ieee80211_roc_setup(struct ieee80211_local *local);
1580 void ieee80211_start_next_roc(struct ieee80211_local *local);
1581 void ieee80211_roc_purge(struct ieee80211_local *local,
1582 struct ieee80211_sub_if_data *sdata);
1583 void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc, bool free);
1584 void ieee80211_sw_roc_work(struct work_struct *work);
1585 void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
1587 /* channel switch handling */
1588 void ieee80211_csa_finalize_work(struct work_struct *work);
1589 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1590 struct cfg80211_csa_settings *params);
1592 /* interface handling */
1593 int ieee80211_iface_init(void);
1594 void ieee80211_iface_exit(void);
1595 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1596 unsigned char name_assign_type,
1597 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1598 struct vif_params *params);
1599 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1600 enum nl80211_iftype type);
1601 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1602 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1603 u32 ieee80211_idle_off(struct ieee80211_local *local);
1604 void ieee80211_recalc_idle(struct ieee80211_local *local);
1605 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1607 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1608 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
1609 int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1610 void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
1612 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1613 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
1616 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1618 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1622 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1623 void ieee80211_tx_pending(unsigned long data);
1624 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1625 struct net_device *dev);
1626 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1627 struct net_device *dev);
1628 void __ieee80211_subif_start_xmit(struct sk_buff *skb,
1629 struct net_device *dev,
1631 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1632 struct sk_buff_head *skbs);
1634 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
1635 struct sk_buff *skb, u32 info_flags);
1637 void ieee80211_check_fast_xmit(struct sta_info *sta);
1638 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
1639 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
1640 void ieee80211_clear_fast_xmit(struct sta_info *sta);
1643 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1644 struct ieee80211_sta_ht_cap *ht_cap);
1645 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1646 struct ieee80211_supported_band *sband,
1647 const struct ieee80211_ht_cap *ht_cap_ie,
1648 struct sta_info *sta);
1649 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1650 const u8 *da, u16 tid,
1651 u16 initiator, u16 reason_code);
1652 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1653 enum ieee80211_smps_mode smps, const u8 *da,
1655 void ieee80211_request_smps_ap_work(struct work_struct *work);
1656 void ieee80211_request_smps_mgd_work(struct work_struct *work);
1657 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
1658 enum ieee80211_smps_mode smps_mode_new);
1660 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1661 u16 initiator, u16 reason, bool stop);
1662 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1663 u16 initiator, u16 reason, bool stop);
1664 void __ieee80211_start_rx_ba_session(struct sta_info *sta,
1665 u8 dialog_token, u16 timeout,
1666 u16 start_seq_num, u16 ba_policy, u16 tid,
1667 u16 buf_size, bool tx, bool auto_seq);
1668 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1669 enum ieee80211_agg_stop_reason reason);
1670 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1671 struct sta_info *sta,
1672 struct ieee80211_mgmt *mgmt, size_t len);
1673 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1674 struct sta_info *sta,
1675 struct ieee80211_mgmt *mgmt,
1677 void ieee80211_process_addba_request(struct ieee80211_local *local,
1678 struct sta_info *sta,
1679 struct ieee80211_mgmt *mgmt,
1682 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1683 enum ieee80211_agg_stop_reason reason);
1684 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1685 enum ieee80211_agg_stop_reason reason);
1686 void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1687 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
1688 void ieee80211_ba_session_work(struct work_struct *work);
1689 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1690 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1692 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1696 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1697 struct ieee80211_supported_band *sband,
1698 const struct ieee80211_vht_cap *vht_cap_ie,
1699 struct sta_info *sta);
1700 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta);
1701 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
1702 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
1703 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1704 struct sta_info *sta, u8 opmode,
1705 enum ieee80211_band band, bool nss_only);
1706 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1707 struct sta_info *sta, u8 opmode,
1708 enum ieee80211_band band, bool nss_only);
1709 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
1710 struct ieee80211_sta_vht_cap *vht_cap);
1712 /* Spectrum management */
1713 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1714 struct ieee80211_mgmt *mgmt,
1717 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
1718 * @sdata: the sdata of the interface which has received the frame
1719 * @elems: parsed 802.11 elements received with the frame
1720 * @current_band: indicates the current band
1721 * @sta_flags: contains information about own capabilities and restrictions
1722 * to decide which channel switch announcements can be accepted. Only the
1723 * following subset of &enum ieee80211_sta_flags are evaluated:
1724 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
1725 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
1726 * %IEEE80211_STA_DISABLE_160MHZ.
1727 * @bssid: the currently connected bssid (for reporting)
1728 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
1729 All of them will be filled with if success only.
1730 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
1732 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
1733 struct ieee802_11_elems *elems,
1734 enum ieee80211_band current_band,
1735 u32 sta_flags, u8 *bssid,
1736 struct ieee80211_csa_ie *csa_ie);
1738 /* Suspend/resume and hw reconfiguration */
1739 int ieee80211_reconfig(struct ieee80211_local *local);
1740 void ieee80211_stop_device(struct ieee80211_local *local);
1742 int __ieee80211_suspend(struct ieee80211_hw *hw,
1743 struct cfg80211_wowlan *wowlan);
1745 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1747 struct ieee80211_local *local = hw_to_local(hw);
1749 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
1750 !test_bit(SCAN_COMPLETED, &local->scanning),
1751 "%s: resume with hardware scan still in progress\n",
1752 wiphy_name(hw->wiphy));
1754 return ieee80211_reconfig(hw_to_local(hw));
1757 /* utility functions/constants */
1758 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
1759 int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
1760 int rate, int erp, int short_preamble,
1762 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
1763 struct ieee80211_hdr *hdr, const u8 *tsc,
1765 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1767 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
1768 struct sta_info *sta, struct sk_buff *skb);
1770 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1771 struct sk_buff *skb, int tid,
1772 enum ieee80211_band band);
1775 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1776 struct sk_buff *skb, int tid,
1777 enum ieee80211_band band)
1780 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1784 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1785 struct sk_buff *skb, int tid)
1787 struct ieee80211_chanctx_conf *chanctx_conf;
1790 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1791 if (WARN_ON(!chanctx_conf)) {
1797 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
1798 chanctx_conf->def.chan->band);
1802 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
1803 struct sk_buff *skb)
1805 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1806 ieee80211_tx_skb_tid(sdata, skb, 7);
1809 u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
1810 struct ieee802_11_elems *elems,
1811 u64 filter, u32 crc);
1812 static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
1814 struct ieee802_11_elems *elems)
1816 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
1819 static inline bool ieee80211_rx_reorder_ready(struct sk_buff_head *frames)
1821 struct sk_buff *tail = skb_peek_tail(frames);
1822 struct ieee80211_rx_status *status;
1827 status = IEEE80211_SKB_RXCB(tail);
1828 if (status->flag & RX_FLAG_AMSDU_MORE)
1834 extern const int ieee802_1d_to_ac[8];
1836 static inline int ieee80211_ac_from_tid(int tid)
1838 return ieee802_1d_to_ac[tid & 7];
1841 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1842 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1843 void ieee80211_dynamic_ps_timer(unsigned long data);
1844 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1845 struct ieee80211_sub_if_data *sdata,
1847 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1848 struct ieee80211_hdr *hdr);
1849 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
1850 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
1852 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1853 unsigned long queues,
1854 enum queue_stop_reason reason,
1856 void ieee80211_stop_vif_queues(struct ieee80211_local *local,
1857 struct ieee80211_sub_if_data *sdata,
1858 enum queue_stop_reason reason);
1859 void ieee80211_wake_vif_queues(struct ieee80211_local *local,
1860 struct ieee80211_sub_if_data *sdata,
1861 enum queue_stop_reason reason);
1862 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1863 unsigned long queues,
1864 enum queue_stop_reason reason,
1866 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1867 enum queue_stop_reason reason,
1869 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1870 enum queue_stop_reason reason,
1872 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
1873 void ieee80211_add_pending_skb(struct ieee80211_local *local,
1874 struct sk_buff *skb);
1875 void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1876 struct sk_buff_head *skbs);
1877 void ieee80211_flush_queues(struct ieee80211_local *local,
1878 struct ieee80211_sub_if_data *sdata, bool drop);
1879 void __ieee80211_flush_queues(struct ieee80211_local *local,
1880 struct ieee80211_sub_if_data *sdata,
1881 unsigned int queues, bool drop);
1883 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
1886 * If quiescing is set, we are racing with __ieee80211_suspend.
1887 * __ieee80211_suspend flushes the workers after setting quiescing,
1888 * and we check quiescing / suspended before enqueing new workers.
1889 * We should abort the worker to avoid the races below.
1891 if (local->quiescing)
1895 * We might already be suspended if the following scenario occurs:
1896 * __ieee80211_suspend Control path
1898 * if (local->quiescing)
1900 * local->quiescing = true;
1901 * flush_workqueue();
1903 * local->suspended = true;
1904 * local->quiescing = false;
1905 * worker starts running...
1907 if (local->suspended)
1913 void ieee80211_init_tx_queue(struct ieee80211_sub_if_data *sdata,
1914 struct sta_info *sta,
1915 struct txq_info *txq, int tid);
1916 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1917 u16 transaction, u16 auth_alg, u16 status,
1918 const u8 *extra, size_t extra_len, const u8 *bssid,
1919 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
1921 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
1922 const u8 *bssid, u16 stype, u16 reason,
1923 bool send_frame, u8 *frame_buf);
1924 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1926 struct ieee80211_scan_ies *ie_desc,
1927 const u8 *ie, size_t ie_len,
1928 u8 bands_used, u32 *rate_masks,
1929 struct cfg80211_chan_def *chandef);
1930 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
1931 const u8 *src, const u8 *dst,
1933 struct ieee80211_channel *chan,
1934 const u8 *ssid, size_t ssid_len,
1935 const u8 *ie, size_t ie_len,
1937 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata,
1938 const u8 *src, const u8 *dst,
1939 const u8 *ssid, size_t ssid_len,
1940 const u8 *ie, size_t ie_len,
1941 u32 ratemask, bool directed, u32 tx_flags,
1942 struct ieee80211_channel *channel, bool scan);
1944 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
1945 struct ieee802_11_elems *elems,
1946 enum ieee80211_band band, u32 *basic_rates);
1947 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
1948 enum ieee80211_smps_mode smps_mode);
1949 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
1950 enum ieee80211_smps_mode smps_mode);
1951 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
1952 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
1954 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
1955 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1957 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1958 const struct cfg80211_chan_def *chandef,
1960 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1962 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1963 const struct cfg80211_chan_def *chandef);
1964 int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
1965 const struct ieee80211_supported_band *sband,
1966 const u8 *srates, int srates_len, u32 *rates);
1967 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
1968 struct sk_buff *skb, bool need_basic,
1969 enum ieee80211_band band);
1970 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
1971 struct sk_buff *skb, bool need_basic,
1972 enum ieee80211_band band);
1973 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
1975 /* channel management */
1976 void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
1977 const struct ieee80211_ht_operation *ht_oper,
1978 struct cfg80211_chan_def *chandef);
1979 void ieee80211_vht_oper_to_chandef(struct ieee80211_channel *control_chan,
1980 const struct ieee80211_vht_operation *oper,
1981 struct cfg80211_chan_def *chandef);
1982 u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
1985 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
1986 const struct cfg80211_chan_def *chandef,
1987 enum ieee80211_chanctx_mode mode);
1989 ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
1990 const struct cfg80211_chan_def *chandef,
1991 enum ieee80211_chanctx_mode mode,
1992 bool radar_required);
1994 ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata);
1995 int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);
1998 ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
1999 const struct cfg80211_chan_def *chandef,
2001 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
2002 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
2003 void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
2005 int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2006 struct ieee80211_chanctx *ctx);
2008 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2009 struct ieee80211_chanctx *chanctx);
2010 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2011 struct ieee80211_chanctx *ctx);
2012 bool ieee80211_is_radar_required(struct ieee80211_local *local);
2014 void ieee80211_dfs_cac_timer(unsigned long data);
2015 void ieee80211_dfs_cac_timer_work(struct work_struct *work);
2016 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2017 void ieee80211_dfs_radar_detected_work(struct work_struct *work);
2018 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2019 struct cfg80211_csa_settings *csa_settings);
2021 bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs);
2022 bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n);
2023 const struct ieee80211_cipher_scheme *
2024 ieee80211_cs_get(struct ieee80211_local *local, u32 cipher,
2025 enum nl80211_iftype iftype);
2026 int ieee80211_cs_headroom(struct ieee80211_local *local,
2027 struct cfg80211_crypto_settings *crypto,
2028 enum nl80211_iftype iftype);
2029 void ieee80211_recalc_dtim(struct ieee80211_local *local,
2030 struct ieee80211_sub_if_data *sdata);
2031 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2032 const struct cfg80211_chan_def *chandef,
2033 enum ieee80211_chanctx_mode chanmode,
2035 int ieee80211_max_num_channels(struct ieee80211_local *local);
2036 enum nl80211_chan_width ieee80211_get_sta_bw(struct ieee80211_sta *sta);
2037 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2038 struct ieee80211_chanctx *ctx);
2041 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2042 const u8 *peer, u8 action_code, u8 dialog_token,
2043 u16 status_code, u32 peer_capability,
2044 bool initiator, const u8 *extra_ies,
2045 size_t extra_ies_len);
2046 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2047 const u8 *peer, enum nl80211_tdls_operation oper);
2048 void ieee80211_tdls_peer_del_work(struct work_struct *wk);
2049 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2050 const u8 *addr, u8 oper_class,
2051 struct cfg80211_chan_def *chandef);
2052 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2053 struct net_device *dev,
2055 void ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata,
2056 struct sk_buff *skb);
2058 extern const struct ethtool_ops ieee80211_ethtool_ops;
2060 #ifdef CONFIG_MAC80211_NOINLINE
2061 #define debug_noinline noinline
2063 #define debug_noinline
2066 #endif /* IEEE80211_I_H */