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 struct sk_buff_head skb_list;
88 unsigned long first_frag_time;
93 bool 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 DECLARE_EWMA(beacon_signal, 16, 4)
424 struct ieee80211_if_managed {
425 struct timer_list timer;
426 struct timer_list conn_mon_timer;
427 struct timer_list bcn_mon_timer;
428 struct timer_list chswitch_timer;
429 struct work_struct monitor_work;
430 struct work_struct chswitch_work;
431 struct work_struct beacon_connection_loss_work;
432 struct work_struct csa_connection_drop_work;
434 unsigned long beacon_timeout;
435 unsigned long probe_timeout;
436 int probe_send_count;
437 bool nullfunc_failed;
438 bool connection_loss;
440 struct cfg80211_bss *associated;
441 struct ieee80211_mgd_auth_data *auth_data;
442 struct ieee80211_mgd_assoc_data *assoc_data;
448 bool powersave; /* powersave requested for this iface */
449 bool broken_ap; /* AP is broken -- turn off powersave */
452 enum ieee80211_smps_mode req_smps, /* requested smps mode */
453 driver_smps_mode; /* smps mode request */
455 struct work_struct request_smps_work;
459 bool csa_waiting_bcn;
460 bool csa_ignored_same_chan;
462 bool beacon_crc_valid;
466 bool status_received;
470 IEEE80211_MFP_DISABLED,
471 IEEE80211_MFP_OPTIONAL,
472 IEEE80211_MFP_REQUIRED
473 } mfp; /* management frame protection */
476 * Bitmask of enabled u-apsd queues,
477 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
480 unsigned int uapsd_queues;
483 * Maximum number of buffered frames AP can deliver during a
484 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
485 * Needs a new association to take effect.
487 unsigned int uapsd_max_sp_len;
489 int wmm_last_param_set;
495 struct ewma_beacon_signal ave_beacon_signal;
498 * Number of Beacon frames used in ave_beacon_signal. This can be used
499 * to avoid generating less reliable cqm events that would be based
500 * only on couple of received frames.
502 unsigned int count_beacon_signal;
505 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
506 * that triggered a cqm event. 0 indicates that no event has been
507 * generated for the current association.
509 int last_cqm_event_signal;
512 * State variables for keeping track of RSSI of the AP currently
513 * connected to and informing driver when RSSI has gone
514 * below/above a certain threshold.
516 int rssi_min_thold, rssi_max_thold;
517 int last_ave_beacon_signal;
519 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
520 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
521 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
522 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
525 u8 tdls_peer[ETH_ALEN] __aligned(2);
526 struct delayed_work tdls_peer_del_work;
527 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
528 struct sk_buff *teardown_skb; /* A copy to send through the AP */
529 spinlock_t teardown_lock; /* To lock changing teardown_skb */
530 bool tdls_chan_switch_prohibited;
531 bool tdls_wider_bw_prohibited;
533 /* WMM-AC TSPEC support */
534 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
535 /* Use a separate work struct so that we can do something here
536 * while the sdata->work is flushing the queues, for example.
537 * otherwise, in scenarios where we hardly get any traffic out
538 * on the BE queue, but there's a lot of VO traffic, we might
539 * get stuck in a downgraded situation and flush takes forever.
541 struct delayed_work tx_tspec_wk;
544 struct ieee80211_if_ibss {
545 struct timer_list timer;
546 struct work_struct csa_connection_drop_work;
548 unsigned long last_scan_completed;
557 bool userspace_handles_dfs;
559 u8 bssid[ETH_ALEN] __aligned(2);
560 u8 ssid[IEEE80211_MAX_SSID_LEN];
563 struct cfg80211_chan_def chandef;
565 unsigned long ibss_join_req;
566 /* probe response/beacon for IBSS */
567 struct beacon_data __rcu *presp;
569 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
570 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
572 spinlock_t incomplete_lock;
573 struct list_head incomplete_stations;
576 IEEE80211_IBSS_MLME_SEARCH,
577 IEEE80211_IBSS_MLME_JOINED,
582 * struct ieee80211_if_ocb - OCB mode state
584 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
585 * @wrkq_flags: OCB deferred task action
586 * @incomplete_lock: delayed STA insertion lock
587 * @incomplete_stations: list of STAs waiting for delayed insertion
588 * @joined: indication if the interface is connected to an OCB network
590 struct ieee80211_if_ocb {
591 struct timer_list housekeeping_timer;
592 unsigned long wrkq_flags;
594 spinlock_t incomplete_lock;
595 struct list_head incomplete_stations;
601 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
603 * these declarations define the interface, which enables
604 * vendor-specific mesh synchronization
607 struct ieee802_11_elems;
608 struct ieee80211_mesh_sync_ops {
609 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
611 struct ieee80211_mgmt *mgmt,
612 struct ieee802_11_elems *elems,
613 struct ieee80211_rx_status *rx_status);
615 /* should be called with beacon_data under RCU read lock */
616 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata,
617 struct beacon_data *beacon);
618 /* add other framework functions here */
621 struct mesh_csa_settings {
622 struct rcu_head rcu_head;
623 struct cfg80211_csa_settings settings;
626 struct ieee80211_if_mesh {
627 struct timer_list housekeeping_timer;
628 struct timer_list mesh_path_timer;
629 struct timer_list mesh_path_root_timer;
631 unsigned long wrkq_flags;
632 unsigned long mbss_changed;
634 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
636 /* Active Path Selection Protocol Identifier */
638 /* Active Path Selection Metric Identifier */
640 /* Congestion Control Mode Identifier */
642 /* Synchronization Protocol Identifier */
644 /* Authentication Protocol Identifier */
646 /* Local mesh Sequence Number */
648 /* Last used PREQ ID */
651 /* Timestamp of last SN update */
652 unsigned long last_sn_update;
653 /* Time when it's ok to send next PERR */
654 unsigned long next_perr;
655 /* Timestamp of last PREQ sent */
656 unsigned long last_preq;
657 struct mesh_rmc *rmc;
658 spinlock_t mesh_preq_queue_lock;
659 struct mesh_preq_queue preq_queue;
661 struct mesh_stats mshstats;
662 struct mesh_config mshcfg;
663 atomic_t estab_plinks;
665 bool accepting_plinks;
667 struct beacon_data __rcu *beacon;
671 IEEE80211_MESH_SEC_NONE = 0x0,
672 IEEE80211_MESH_SEC_AUTHED = 0x1,
673 IEEE80211_MESH_SEC_SECURED = 0x2,
676 /* Extensible Synchronization Framework */
677 const struct ieee80211_mesh_sync_ops *sync_ops;
678 s64 sync_offset_clockdrift_max;
679 spinlock_t sync_offset_lock;
681 /* mesh power save */
682 enum nl80211_mesh_power_mode nonpeer_pm;
683 int ps_peers_light_sleep;
684 int ps_peers_deep_sleep;
686 /* Channel Switching Support */
687 struct mesh_csa_settings __rcu *csa;
689 IEEE80211_MESH_CSA_ROLE_NONE,
690 IEEE80211_MESH_CSA_ROLE_INIT,
691 IEEE80211_MESH_CSA_ROLE_REPEATER,
696 /* offset from skb->data while building IE */
700 #ifdef CONFIG_MAC80211_MESH
701 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
702 do { (msh)->mshstats.name++; } while (0)
704 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
709 * enum ieee80211_sub_if_data_flags - virtual interface flags
711 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
712 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
713 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
714 * associated stations and deliver multicast frames both
715 * back to wireless media and to the local net stack.
716 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
717 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
718 * @IEEE80211_SDATA_MU_MIMO_OWNER: indicates interface owns MU-MIMO capability
720 enum ieee80211_sub_if_data_flags {
721 IEEE80211_SDATA_ALLMULTI = BIT(0),
722 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
723 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
724 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
725 IEEE80211_SDATA_IN_DRIVER = BIT(5),
726 IEEE80211_SDATA_MU_MIMO_OWNER = BIT(6),
730 * enum ieee80211_sdata_state_bits - virtual interface state bits
731 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
732 * mirrors netif_running() but is separate for interface type
733 * change handling while the interface is up
734 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
735 * mode, so queues are stopped
736 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
737 * to offchannel, reset when offchannel returns
739 enum ieee80211_sdata_state_bits {
741 SDATA_STATE_OFFCHANNEL,
742 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
746 * enum ieee80211_chanctx_mode - channel context configuration mode
748 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
749 * multiple interfaces
750 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
751 * only by a single interface. This can be used for example for
752 * non-fixed channel IBSS.
754 enum ieee80211_chanctx_mode {
755 IEEE80211_CHANCTX_SHARED,
756 IEEE80211_CHANCTX_EXCLUSIVE
760 * enum ieee80211_chanctx_replace_state - channel context replacement state
762 * This is used for channel context in-place reservations that require channel
763 * context switch/swap.
765 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
766 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
767 * by a (not yet registered) channel context pointed by %replace_ctx.
768 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
769 * replaces an existing channel context pointed to by %replace_ctx.
771 enum ieee80211_chanctx_replace_state {
772 IEEE80211_CHANCTX_REPLACE_NONE,
773 IEEE80211_CHANCTX_WILL_BE_REPLACED,
774 IEEE80211_CHANCTX_REPLACES_OTHER,
777 struct ieee80211_chanctx {
778 struct list_head list;
779 struct rcu_head rcu_head;
781 struct list_head assigned_vifs;
782 struct list_head reserved_vifs;
784 enum ieee80211_chanctx_replace_state replace_state;
785 struct ieee80211_chanctx *replace_ctx;
787 enum ieee80211_chanctx_mode mode;
790 struct ieee80211_chanctx_conf conf;
793 struct mac80211_qos_map {
794 struct cfg80211_qos_map qos_map;
795 struct rcu_head rcu_head;
798 enum txq_info_flags {
804 struct sk_buff_head queue;
808 struct ieee80211_txq txq;
811 struct ieee80211_sub_if_data {
812 struct list_head list;
814 struct wireless_dev wdev;
817 struct list_head key_list;
819 /* count for keys needing tailroom space allocation */
820 int crypto_tx_tailroom_needed_cnt;
821 int crypto_tx_tailroom_pending_dec;
822 struct delayed_work dec_tailroom_needed_wk;
824 struct net_device *dev;
825 struct ieee80211_local *local;
833 /* Fragment table for host-based reassembly */
834 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
835 unsigned int fragment_next;
837 /* TID bitmap for NoAck policy */
840 /* bit field of ACM bits (BIT(802.1D tag)) */
843 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
844 struct ieee80211_key __rcu *default_unicast_key;
845 struct ieee80211_key __rcu *default_multicast_key;
846 struct ieee80211_key __rcu *default_mgmt_key;
849 __be16 control_port_protocol;
850 bool control_port_no_encrypt;
851 int encrypt_headroom;
853 atomic_t txqs_len[IEEE80211_NUM_ACS];
854 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
855 struct mac80211_qos_map __rcu *qos_map;
857 struct work_struct csa_finalize_work;
858 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
859 struct cfg80211_chan_def csa_chandef;
861 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
862 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
864 /* context reservation -- protected with chanctx_mtx */
865 struct ieee80211_chanctx *reserved_chanctx;
866 struct cfg80211_chan_def reserved_chandef;
867 bool reserved_radar_required;
870 /* used to reconfigure hardware SM PS */
871 struct work_struct recalc_smps;
873 struct work_struct work;
874 struct sk_buff_head skb_queue;
877 enum ieee80211_smps_mode smps_mode;
879 int user_power_level; /* in dBm */
880 int ap_power_level; /* in dBm */
883 struct delayed_work dfs_cac_timer_work;
886 * AP this belongs to: self in AP mode and
887 * corresponding AP in VLAN mode, NULL for
888 * all others (might be needed later in IBSS)
890 struct ieee80211_if_ap *bss;
892 /* bitmap of allowed (non-MCS) rate indexes for rate control */
893 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
895 bool rc_has_mcs_mask[IEEE80211_NUM_BANDS];
896 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
898 bool rc_has_vht_mcs_mask[IEEE80211_NUM_BANDS];
899 u16 rc_rateidx_vht_mcs_mask[IEEE80211_NUM_BANDS][NL80211_VHT_NSS_MAX];
902 struct ieee80211_if_ap ap;
903 struct ieee80211_if_wds wds;
904 struct ieee80211_if_vlan vlan;
905 struct ieee80211_if_managed mgd;
906 struct ieee80211_if_ibss ibss;
907 struct ieee80211_if_mesh mesh;
908 struct ieee80211_if_ocb ocb;
912 #ifdef CONFIG_MAC80211_DEBUGFS
914 struct dentry *subdir_stations;
915 struct dentry *default_unicast_key;
916 struct dentry *default_multicast_key;
917 struct dentry *default_mgmt_key;
921 /* must be last, dynamically sized area in this! */
922 struct ieee80211_vif vif;
926 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
928 return container_of(p, struct ieee80211_sub_if_data, vif);
931 static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
932 __acquires(&sdata->wdev.mtx)
934 mutex_lock(&sdata->wdev.mtx);
935 __acquire(&sdata->wdev.mtx);
938 static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
939 __releases(&sdata->wdev.mtx)
941 mutex_unlock(&sdata->wdev.mtx);
942 __release(&sdata->wdev.mtx);
945 #define sdata_dereference(p, sdata) \
946 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
949 sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
951 lockdep_assert_held(&sdata->wdev.mtx);
954 static inline enum ieee80211_band
955 ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
957 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
958 struct ieee80211_chanctx_conf *chanctx_conf;
961 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
962 if (!WARN_ON(!chanctx_conf))
963 band = chanctx_conf->def.chan->band;
970 ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
972 switch (chandef->width) {
973 case NL80211_CHAN_WIDTH_5:
975 case NL80211_CHAN_WIDTH_10:
983 ieee80211_vif_get_shift(struct ieee80211_vif *vif)
985 struct ieee80211_chanctx_conf *chanctx_conf;
989 chanctx_conf = rcu_dereference(vif->chanctx_conf);
991 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
997 struct ieee80211_rx_agg {
1002 enum sdata_queue_type {
1003 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
1004 IEEE80211_SDATA_QUEUE_AGG_START = 1,
1005 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
1006 IEEE80211_SDATA_QUEUE_RX_AGG_START = 3,
1007 IEEE80211_SDATA_QUEUE_RX_AGG_STOP = 4,
1011 IEEE80211_RX_MSG = 1,
1012 IEEE80211_TX_STATUS_MSG = 2,
1015 enum queue_stop_reason {
1016 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1017 IEEE80211_QUEUE_STOP_REASON_PS,
1018 IEEE80211_QUEUE_STOP_REASON_CSA,
1019 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1020 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1021 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1022 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1023 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1024 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1025 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1027 IEEE80211_QUEUE_STOP_REASONS,
1030 #ifdef CONFIG_MAC80211_LEDS
1031 struct tpt_led_trigger {
1033 const struct ieee80211_tpt_blink *blink_table;
1034 unsigned int blink_table_len;
1035 struct timer_list timer;
1036 unsigned long prev_traffic;
1037 unsigned long tx_bytes, rx_bytes;
1038 unsigned int active, want;
1044 * mac80211 scan flags - currently active scan mode
1046 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1047 * well be on the operating channel
1048 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1049 * determine if we are on the operating channel or not
1050 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1051 * channel. This should not interrupt normal traffic.
1052 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1053 * that the scan completed.
1054 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1055 * a scan complete for an aborted scan.
1056 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1062 SCAN_ONCHANNEL_SCANNING,
1069 * enum mac80211_scan_state - scan state machine states
1071 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1072 * determines if we should keep on scanning or switch back to the
1074 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1075 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1076 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1078 * @SCAN_RESUME: Resume the scan and scan the next channel
1079 * @SCAN_ABORT: Abort the scan and go back to operating channel
1081 enum mac80211_scan_state {
1090 struct ieee80211_local {
1091 /* embed the driver visible part.
1092 * don't cast (use the static inlines below), but we keep
1093 * it first anyway so they become a no-op */
1094 struct ieee80211_hw hw;
1096 const struct ieee80211_ops *ops;
1099 * private workqueue to mac80211. mac80211 makes this accessible
1100 * via ieee80211_queue_work()
1102 struct workqueue_struct *workqueue;
1104 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1105 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1106 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1107 spinlock_t queue_stop_reason_lock;
1110 int monitors, cooked_mntrs;
1111 /* number of interfaces with corresponding FIF_ flags */
1112 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1115 unsigned int filter_flags; /* FIF_* */
1117 bool wiphy_ciphers_allocated;
1121 /* protects the aggregated multicast list and filter calls */
1122 spinlock_t filter_lock;
1124 /* used for uploading changed mc list */
1125 struct work_struct reconfig_filter;
1127 /* aggregated multicast list */
1128 struct netdev_hw_addr_list mc_list;
1130 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1133 * suspended is true if we finished all the suspend _and_ we have
1134 * not yet come up from resume. This is to be used by mac80211
1135 * to ensure driver sanity during suspend and mac80211's own
1136 * sanity. It can eventually be used for WoW as well.
1141 * Resuming is true while suspended, but when we're reprogramming the
1142 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1143 * again even though some other parts of the stack are still suspended
1144 * and we still drop received frames to avoid waking the stack.
1149 * quiescing is true during the suspend process _only_ to
1150 * ease timer cancelling etc.
1154 /* device is started */
1157 /* device is during a HW reconfig */
1160 /* wowlan is enabled -- don't reconfig on resume */
1163 struct work_struct radar_detected_work;
1165 /* number of RX chains the hardware has */
1168 int tx_headroom; /* required headroom for hardware/radiotap */
1170 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1171 * added to skb_queue will be processed, but frames in
1172 * skb_queue_unreliable may be dropped if the total length of these
1173 * queues increases over the limit. */
1174 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1175 struct tasklet_struct tasklet;
1176 struct sk_buff_head skb_queue;
1177 struct sk_buff_head skb_queue_unreliable;
1179 spinlock_t rx_path_lock;
1183 * The mutex only protects the list, hash table and
1184 * counter, reads are done with RCU.
1186 struct mutex sta_mtx;
1187 spinlock_t tim_lock;
1188 unsigned long num_sta;
1189 struct list_head sta_list;
1190 struct rhashtable sta_hash;
1191 struct timer_list sta_cleanup;
1194 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1195 struct tasklet_struct tx_pending_tasklet;
1197 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1199 /* number of interfaces with allmulti RX */
1200 atomic_t iff_allmultis;
1202 struct rate_control_ref *rate_ctrl;
1204 struct crypto_cipher *wep_tx_tfm;
1205 struct crypto_cipher *wep_rx_tfm;
1209 struct list_head interfaces;
1210 struct mutex iflist_mtx;
1213 * Key mutex, protects sdata's key_list and sta_info's
1214 * key pointers (write access, they're RCU.)
1216 struct mutex key_mtx;
1218 /* mutex for scan and work locking */
1221 /* Scanning and BSS list */
1222 unsigned long scanning;
1223 struct cfg80211_ssid scan_ssid;
1224 struct cfg80211_scan_request *int_scan_req;
1225 struct cfg80211_scan_request __rcu *scan_req;
1226 struct ieee80211_scan_request *hw_scan_req;
1227 struct cfg80211_chan_def scan_chandef;
1228 enum ieee80211_band hw_scan_band;
1229 int scan_channel_idx;
1231 int hw_scan_ies_bufsize;
1233 struct work_struct sched_scan_stopped_work;
1234 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1235 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1236 u8 scan_addr[ETH_ALEN];
1238 unsigned long leave_oper_channel_time;
1239 enum mac80211_scan_state next_scan_state;
1240 struct delayed_work scan_work;
1241 struct ieee80211_sub_if_data __rcu *scan_sdata;
1242 /* For backward compatibility only -- do not use */
1243 struct cfg80211_chan_def _oper_chandef;
1245 /* Temporary remain-on-channel for off-channel operations */
1246 struct ieee80211_channel *tmp_channel;
1248 /* channel contexts */
1249 struct list_head chanctx_list;
1250 struct mutex chanctx_mtx;
1252 #ifdef CONFIG_MAC80211_LEDS
1253 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1254 struct led_trigger tpt_led;
1255 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1256 atomic_t radio_led_active, tpt_led_active;
1257 struct tpt_led_trigger *tpt_led_trigger;
1260 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1262 /* dot11CountersTable */
1263 u32 dot11TransmittedFragmentCount;
1264 u32 dot11MulticastTransmittedFrameCount;
1265 u32 dot11FailedCount;
1266 u32 dot11RetryCount;
1267 u32 dot11MultipleRetryCount;
1268 u32 dot11FrameDuplicateCount;
1269 u32 dot11ReceivedFragmentCount;
1270 u32 dot11MulticastReceivedFrameCount;
1271 u32 dot11TransmittedFrameCount;
1273 /* TX/RX handler statistics */
1274 unsigned int tx_handlers_drop;
1275 unsigned int tx_handlers_queued;
1276 unsigned int tx_handlers_drop_wep;
1277 unsigned int tx_handlers_drop_not_assoc;
1278 unsigned int tx_handlers_drop_unauth_port;
1279 unsigned int rx_handlers_drop;
1280 unsigned int rx_handlers_queued;
1281 unsigned int rx_handlers_drop_nullfunc;
1282 unsigned int rx_handlers_drop_defrag;
1283 unsigned int tx_expand_skb_head;
1284 unsigned int tx_expand_skb_head_cloned;
1285 unsigned int rx_expand_skb_head_defrag;
1286 unsigned int rx_handlers_fragments;
1287 unsigned int tx_status_drop;
1288 #define I802_DEBUG_INC(c) (c)++
1289 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1290 #define I802_DEBUG_INC(c) do { } while (0)
1291 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1294 int total_ps_buffered; /* total number of all buffered unicast and
1295 * multicast packets for power saving stations
1299 bool offchannel_ps_enabled;
1301 * PS can only be enabled when we have exactly one managed
1302 * interface (and monitors) in PS, this then points there.
1304 struct ieee80211_sub_if_data *ps_sdata;
1305 struct work_struct dynamic_ps_enable_work;
1306 struct work_struct dynamic_ps_disable_work;
1307 struct timer_list dynamic_ps_timer;
1308 struct notifier_block network_latency_notifier;
1309 struct notifier_block ifa_notifier;
1310 struct notifier_block ifa6_notifier;
1313 * The dynamic ps timeout configured from user space via WEXT -
1314 * this will override whatever chosen by mac80211 internally.
1316 int dynamic_ps_forced_timeout;
1318 int user_power_level; /* in dBm, for all interfaces */
1320 enum ieee80211_smps_mode smps_mode;
1322 struct work_struct restart_work;
1324 #ifdef CONFIG_MAC80211_DEBUGFS
1325 struct local_debugfsdentries {
1326 struct dentry *rcdir;
1327 struct dentry *keys;
1332 * Remain-on-channel support
1334 struct list_head roc_list;
1335 struct work_struct hw_roc_start, hw_roc_done;
1336 unsigned long hw_roc_start_time;
1337 u64 roc_cookie_counter;
1339 struct idr ack_status_frames;
1340 spinlock_t ack_status_lock;
1342 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1344 /* virtual monitor interface */
1345 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1346 struct cfg80211_chan_def monitor_chandef;
1348 /* extended capabilities provided by mac80211 */
1351 /* TDLS channel switch */
1352 struct work_struct tdls_chsw_work;
1353 struct sk_buff_head skb_queue_tdls_chsw;
1356 static inline struct ieee80211_sub_if_data *
1357 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1359 return netdev_priv(dev);
1362 static inline struct ieee80211_sub_if_data *
1363 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1365 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1368 /* this struct represents 802.11n's RA/TID combination */
1369 struct ieee80211_ra_tid {
1374 /* this struct holds the value parsing from channel switch IE */
1375 struct ieee80211_csa_ie {
1376 struct cfg80211_chan_def chandef;
1383 /* Parsed Information Elements */
1384 struct ieee802_11_elems {
1388 /* pointers to IEs */
1389 const struct ieee80211_tdls_lnkie *lnk_id;
1390 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1391 const u8 *ext_capab;
1393 const u8 *supp_rates;
1394 const u8 *ds_params;
1395 const struct ieee80211_tim_ie *tim;
1396 const u8 *challenge;
1399 const u8 *ext_supp_rates;
1401 const u8 *wmm_param;
1402 const struct ieee80211_ht_cap *ht_cap_elem;
1403 const struct ieee80211_ht_operation *ht_operation;
1404 const struct ieee80211_vht_cap *vht_cap_elem;
1405 const struct ieee80211_vht_operation *vht_operation;
1406 const struct ieee80211_meshconf_ie *mesh_config;
1409 const __le16 *awake_window;
1413 const struct ieee80211_rann_ie *rann;
1414 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1415 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1416 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1417 const u8 *country_elem;
1418 const u8 *pwr_constr_elem;
1419 const u8 *cisco_dtpc_elem;
1420 const struct ieee80211_timeout_interval_ie *timeout_int;
1421 const u8 *opmode_notif;
1422 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1423 const struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1425 /* length of them, respectively */
1432 u8 ext_supp_rates_len;
1440 u8 country_elem_len;
1442 /* whether a parse error occurred while retrieving these elements */
1446 static inline struct ieee80211_local *hw_to_local(
1447 struct ieee80211_hw *hw)
1449 return container_of(hw, struct ieee80211_local, hw);
1452 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1454 return container_of(txq, struct txq_info, txq);
1457 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1459 return ether_addr_equal(raddr, addr) ||
1460 is_broadcast_ether_addr(raddr);
1464 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1466 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1467 status->flag & RX_FLAG_MACTIME_END);
1468 return status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END);
1471 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1472 struct ieee80211_rx_status *status,
1473 unsigned int mpdu_len,
1474 unsigned int mpdu_offset);
1475 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1476 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1477 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1479 void ieee80211_configure_filter(struct ieee80211_local *local);
1480 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1483 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1484 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1485 struct cfg80211_auth_request *req);
1486 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1487 struct cfg80211_assoc_request *req);
1488 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1489 struct cfg80211_deauth_request *req);
1490 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1491 struct cfg80211_disassoc_request *req);
1492 void ieee80211_send_pspoll(struct ieee80211_local *local,
1493 struct ieee80211_sub_if_data *sdata);
1494 void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
1495 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1496 int ieee80211_max_network_latency(struct notifier_block *nb,
1497 unsigned long data, void *dummy);
1498 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1499 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1500 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1501 struct sk_buff *skb);
1502 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1503 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1504 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1505 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1506 __le16 fc, bool acked);
1507 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1508 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1509 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1512 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1513 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1514 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1515 const u8 *bssid, const u8 *addr, u32 supp_rates);
1516 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1517 struct cfg80211_ibss_params *params);
1518 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1519 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1520 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1521 struct sk_buff *skb);
1522 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1523 struct cfg80211_csa_settings *csa_settings);
1524 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
1525 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1528 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1529 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1530 const u8 *bssid, const u8 *addr, u32 supp_rates);
1531 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1532 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1533 struct ocb_setup *setup);
1534 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1537 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1538 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1539 struct sk_buff *skb);
1540 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1541 struct cfg80211_csa_settings *csa_settings);
1542 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
1544 /* scan/BSS handling */
1545 void ieee80211_scan_work(struct work_struct *work);
1546 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1547 const u8 *ssid, u8 ssid_len,
1548 struct ieee80211_channel **channels,
1549 unsigned int n_channels,
1550 enum nl80211_bss_scan_width scan_width);
1551 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1552 struct cfg80211_scan_request *req);
1553 void ieee80211_scan_cancel(struct ieee80211_local *local);
1554 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1555 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1557 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1558 struct ieee80211_bss *
1559 ieee80211_bss_info_update(struct ieee80211_local *local,
1560 struct ieee80211_rx_status *rx_status,
1561 struct ieee80211_mgmt *mgmt,
1563 struct ieee802_11_elems *elems,
1564 struct ieee80211_channel *channel);
1565 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1566 struct ieee80211_bss *bss);
1568 /* scheduled scan handling */
1570 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1571 struct cfg80211_sched_scan_request *req);
1572 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1573 struct cfg80211_sched_scan_request *req);
1574 int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
1575 void ieee80211_sched_scan_end(struct ieee80211_local *local);
1576 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1578 /* off-channel helpers */
1579 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1580 void ieee80211_offchannel_return(struct ieee80211_local *local);
1581 void ieee80211_roc_setup(struct ieee80211_local *local);
1582 void ieee80211_start_next_roc(struct ieee80211_local *local);
1583 void ieee80211_roc_purge(struct ieee80211_local *local,
1584 struct ieee80211_sub_if_data *sdata);
1585 void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc, bool free);
1586 void ieee80211_sw_roc_work(struct work_struct *work);
1587 void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
1589 /* channel switch handling */
1590 void ieee80211_csa_finalize_work(struct work_struct *work);
1591 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1592 struct cfg80211_csa_settings *params);
1594 /* interface handling */
1595 int ieee80211_iface_init(void);
1596 void ieee80211_iface_exit(void);
1597 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1598 unsigned char name_assign_type,
1599 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1600 struct vif_params *params);
1601 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1602 enum nl80211_iftype type);
1603 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1604 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1605 u32 ieee80211_idle_off(struct ieee80211_local *local);
1606 void ieee80211_recalc_idle(struct ieee80211_local *local);
1607 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1609 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1610 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
1611 int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1612 void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
1614 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1615 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
1618 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1620 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1624 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1625 void ieee80211_tx_pending(unsigned long data);
1626 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1627 struct net_device *dev);
1628 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1629 struct net_device *dev);
1630 void __ieee80211_subif_start_xmit(struct sk_buff *skb,
1631 struct net_device *dev,
1633 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1634 struct sk_buff_head *skbs);
1636 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
1637 struct sk_buff *skb, u32 info_flags);
1638 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
1639 struct ieee80211_supported_band *sband,
1640 int retry_count, int shift, bool send_to_cooked);
1642 void ieee80211_check_fast_xmit(struct sta_info *sta);
1643 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
1644 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
1645 void ieee80211_clear_fast_xmit(struct sta_info *sta);
1648 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1649 struct ieee80211_sta_ht_cap *ht_cap);
1650 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1651 struct ieee80211_supported_band *sband,
1652 const struct ieee80211_ht_cap *ht_cap_ie,
1653 struct sta_info *sta);
1654 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1655 const u8 *da, u16 tid,
1656 u16 initiator, u16 reason_code);
1657 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1658 enum ieee80211_smps_mode smps, const u8 *da,
1660 void ieee80211_request_smps_ap_work(struct work_struct *work);
1661 void ieee80211_request_smps_mgd_work(struct work_struct *work);
1662 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
1663 enum ieee80211_smps_mode smps_mode_new);
1665 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1666 u16 initiator, u16 reason, bool stop);
1667 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1668 u16 initiator, u16 reason, bool stop);
1669 void __ieee80211_start_rx_ba_session(struct sta_info *sta,
1670 u8 dialog_token, u16 timeout,
1671 u16 start_seq_num, u16 ba_policy, u16 tid,
1672 u16 buf_size, bool tx, bool auto_seq);
1673 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1674 enum ieee80211_agg_stop_reason reason);
1675 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1676 struct sta_info *sta,
1677 struct ieee80211_mgmt *mgmt, size_t len);
1678 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1679 struct sta_info *sta,
1680 struct ieee80211_mgmt *mgmt,
1682 void ieee80211_process_addba_request(struct ieee80211_local *local,
1683 struct sta_info *sta,
1684 struct ieee80211_mgmt *mgmt,
1687 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1688 enum ieee80211_agg_stop_reason reason);
1689 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1690 enum ieee80211_agg_stop_reason reason);
1691 void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1692 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
1693 void ieee80211_ba_session_work(struct work_struct *work);
1694 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1695 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1697 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1701 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1702 struct ieee80211_supported_band *sband,
1703 const struct ieee80211_vht_cap *vht_cap_ie,
1704 struct sta_info *sta);
1705 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta);
1706 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
1707 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
1708 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1709 struct sta_info *sta, u8 opmode,
1710 enum ieee80211_band band, bool nss_only);
1711 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1712 struct sta_info *sta, u8 opmode,
1713 enum ieee80211_band band, bool nss_only);
1714 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
1715 struct ieee80211_sta_vht_cap *vht_cap);
1716 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
1717 u16 vht_mask[NL80211_VHT_NSS_MAX]);
1719 /* Spectrum management */
1720 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1721 struct ieee80211_mgmt *mgmt,
1724 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
1725 * @sdata: the sdata of the interface which has received the frame
1726 * @elems: parsed 802.11 elements received with the frame
1727 * @current_band: indicates the current band
1728 * @sta_flags: contains information about own capabilities and restrictions
1729 * to decide which channel switch announcements can be accepted. Only the
1730 * following subset of &enum ieee80211_sta_flags are evaluated:
1731 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
1732 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
1733 * %IEEE80211_STA_DISABLE_160MHZ.
1734 * @bssid: the currently connected bssid (for reporting)
1735 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
1736 All of them will be filled with if success only.
1737 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
1739 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
1740 struct ieee802_11_elems *elems,
1741 enum ieee80211_band current_band,
1742 u32 sta_flags, u8 *bssid,
1743 struct ieee80211_csa_ie *csa_ie);
1745 /* Suspend/resume and hw reconfiguration */
1746 int ieee80211_reconfig(struct ieee80211_local *local);
1747 void ieee80211_stop_device(struct ieee80211_local *local);
1749 int __ieee80211_suspend(struct ieee80211_hw *hw,
1750 struct cfg80211_wowlan *wowlan);
1752 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1754 struct ieee80211_local *local = hw_to_local(hw);
1756 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
1757 !test_bit(SCAN_COMPLETED, &local->scanning),
1758 "%s: resume with hardware scan still in progress\n",
1759 wiphy_name(hw->wiphy));
1761 return ieee80211_reconfig(hw_to_local(hw));
1764 /* utility functions/constants */
1765 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
1766 int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
1767 int rate, int erp, int short_preamble,
1769 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
1770 struct ieee80211_hdr *hdr, const u8 *tsc,
1772 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1774 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
1775 struct sta_info *sta, struct sk_buff *skb);
1777 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1778 struct sk_buff *skb, int tid,
1779 enum ieee80211_band band);
1782 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1783 struct sk_buff *skb, int tid,
1784 enum ieee80211_band band)
1787 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1791 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1792 struct sk_buff *skb, int tid)
1794 struct ieee80211_chanctx_conf *chanctx_conf;
1797 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1798 if (WARN_ON(!chanctx_conf)) {
1804 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
1805 chanctx_conf->def.chan->band);
1809 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
1810 struct sk_buff *skb)
1812 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1813 ieee80211_tx_skb_tid(sdata, skb, 7);
1816 u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
1817 struct ieee802_11_elems *elems,
1818 u64 filter, u32 crc);
1819 static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
1821 struct ieee802_11_elems *elems)
1823 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
1826 static inline bool ieee80211_rx_reorder_ready(struct sk_buff_head *frames)
1828 struct sk_buff *tail = skb_peek_tail(frames);
1829 struct ieee80211_rx_status *status;
1834 status = IEEE80211_SKB_RXCB(tail);
1835 if (status->flag & RX_FLAG_AMSDU_MORE)
1841 extern const int ieee802_1d_to_ac[8];
1843 static inline int ieee80211_ac_from_tid(int tid)
1845 return ieee802_1d_to_ac[tid & 7];
1848 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1849 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1850 void ieee80211_dynamic_ps_timer(unsigned long data);
1851 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1852 struct ieee80211_sub_if_data *sdata,
1854 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1855 struct ieee80211_hdr *hdr);
1856 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
1857 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
1859 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1860 unsigned long queues,
1861 enum queue_stop_reason reason,
1863 void ieee80211_stop_vif_queues(struct ieee80211_local *local,
1864 struct ieee80211_sub_if_data *sdata,
1865 enum queue_stop_reason reason);
1866 void ieee80211_wake_vif_queues(struct ieee80211_local *local,
1867 struct ieee80211_sub_if_data *sdata,
1868 enum queue_stop_reason reason);
1869 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1870 unsigned long queues,
1871 enum queue_stop_reason reason,
1873 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1874 enum queue_stop_reason reason,
1876 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1877 enum queue_stop_reason reason,
1879 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
1880 void ieee80211_add_pending_skb(struct ieee80211_local *local,
1881 struct sk_buff *skb);
1882 void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1883 struct sk_buff_head *skbs);
1884 void ieee80211_flush_queues(struct ieee80211_local *local,
1885 struct ieee80211_sub_if_data *sdata, bool drop);
1886 void __ieee80211_flush_queues(struct ieee80211_local *local,
1887 struct ieee80211_sub_if_data *sdata,
1888 unsigned int queues, bool drop);
1890 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
1893 * If quiescing is set, we are racing with __ieee80211_suspend.
1894 * __ieee80211_suspend flushes the workers after setting quiescing,
1895 * and we check quiescing / suspended before enqueing new workers.
1896 * We should abort the worker to avoid the races below.
1898 if (local->quiescing)
1902 * We might already be suspended if the following scenario occurs:
1903 * __ieee80211_suspend Control path
1905 * if (local->quiescing)
1907 * local->quiescing = true;
1908 * flush_workqueue();
1910 * local->suspended = true;
1911 * local->quiescing = false;
1912 * worker starts running...
1914 if (local->suspended)
1920 void ieee80211_init_tx_queue(struct ieee80211_sub_if_data *sdata,
1921 struct sta_info *sta,
1922 struct txq_info *txq, int tid);
1923 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1924 u16 transaction, u16 auth_alg, u16 status,
1925 const u8 *extra, size_t extra_len, const u8 *bssid,
1926 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
1928 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
1929 const u8 *bssid, u16 stype, u16 reason,
1930 bool send_frame, u8 *frame_buf);
1931 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1933 struct ieee80211_scan_ies *ie_desc,
1934 const u8 *ie, size_t ie_len,
1935 u8 bands_used, u32 *rate_masks,
1936 struct cfg80211_chan_def *chandef);
1937 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
1938 const u8 *src, const u8 *dst,
1940 struct ieee80211_channel *chan,
1941 const u8 *ssid, size_t ssid_len,
1942 const u8 *ie, size_t ie_len,
1944 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata,
1945 const u8 *src, const u8 *dst,
1946 const u8 *ssid, size_t ssid_len,
1947 const u8 *ie, size_t ie_len,
1948 u32 ratemask, bool directed, u32 tx_flags,
1949 struct ieee80211_channel *channel, bool scan);
1951 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
1952 struct ieee802_11_elems *elems,
1953 enum ieee80211_band band, u32 *basic_rates);
1954 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
1955 enum ieee80211_smps_mode smps_mode);
1956 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
1957 enum ieee80211_smps_mode smps_mode);
1958 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
1959 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
1961 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
1962 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1964 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1965 const struct cfg80211_chan_def *chandef,
1967 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1969 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1970 const struct cfg80211_chan_def *chandef);
1971 int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
1972 const struct ieee80211_supported_band *sband,
1973 const u8 *srates, int srates_len, u32 *rates);
1974 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
1975 struct sk_buff *skb, bool need_basic,
1976 enum ieee80211_band band);
1977 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
1978 struct sk_buff *skb, bool need_basic,
1979 enum ieee80211_band band);
1980 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
1982 /* channel management */
1983 void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
1984 const struct ieee80211_ht_operation *ht_oper,
1985 struct cfg80211_chan_def *chandef);
1986 void ieee80211_vht_oper_to_chandef(struct ieee80211_channel *control_chan,
1987 const struct ieee80211_vht_operation *oper,
1988 struct cfg80211_chan_def *chandef);
1989 u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
1992 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
1993 const struct cfg80211_chan_def *chandef,
1994 enum ieee80211_chanctx_mode mode);
1996 ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
1997 const struct cfg80211_chan_def *chandef,
1998 enum ieee80211_chanctx_mode mode,
1999 bool radar_required);
2001 ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata);
2002 int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);
2005 ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
2006 const struct cfg80211_chan_def *chandef,
2008 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
2009 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
2010 void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
2012 int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2013 struct ieee80211_chanctx *ctx);
2015 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2016 struct ieee80211_chanctx *chanctx);
2017 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2018 struct ieee80211_chanctx *ctx);
2019 bool ieee80211_is_radar_required(struct ieee80211_local *local);
2021 void ieee80211_dfs_cac_timer(unsigned long data);
2022 void ieee80211_dfs_cac_timer_work(struct work_struct *work);
2023 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2024 void ieee80211_dfs_radar_detected_work(struct work_struct *work);
2025 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2026 struct cfg80211_csa_settings *csa_settings);
2028 bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs);
2029 bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n);
2030 const struct ieee80211_cipher_scheme *
2031 ieee80211_cs_get(struct ieee80211_local *local, u32 cipher,
2032 enum nl80211_iftype iftype);
2033 int ieee80211_cs_headroom(struct ieee80211_local *local,
2034 struct cfg80211_crypto_settings *crypto,
2035 enum nl80211_iftype iftype);
2036 void ieee80211_recalc_dtim(struct ieee80211_local *local,
2037 struct ieee80211_sub_if_data *sdata);
2038 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2039 const struct cfg80211_chan_def *chandef,
2040 enum ieee80211_chanctx_mode chanmode,
2042 int ieee80211_max_num_channels(struct ieee80211_local *local);
2043 enum nl80211_chan_width ieee80211_get_sta_bw(struct ieee80211_sta *sta);
2044 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2045 struct ieee80211_chanctx *ctx);
2048 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2049 const u8 *peer, u8 action_code, u8 dialog_token,
2050 u16 status_code, u32 peer_capability,
2051 bool initiator, const u8 *extra_ies,
2052 size_t extra_ies_len);
2053 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2054 const u8 *peer, enum nl80211_tdls_operation oper);
2055 void ieee80211_tdls_peer_del_work(struct work_struct *wk);
2056 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2057 const u8 *addr, u8 oper_class,
2058 struct cfg80211_chan_def *chandef);
2059 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2060 struct net_device *dev,
2062 void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
2063 void ieee80211_tdls_chsw_work(struct work_struct *wk);
2065 extern const struct ethtool_ops ieee80211_ethtool_ops;
2067 #ifdef CONFIG_MAC80211_NOINLINE
2068 #define debug_noinline noinline
2070 #define debug_noinline
2073 #endif /* IEEE80211_I_H */