2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005, Devicescape Software, Inc.
4 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
5 * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net>
6 * Copyright 2013-2015 Intel Mobile Communications GmbH
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
16 #include <linux/kernel.h>
17 #include <linux/device.h>
18 #include <linux/if_ether.h>
19 #include <linux/interrupt.h>
20 #include <linux/list.h>
21 #include <linux/netdevice.h>
22 #include <linux/skbuff.h>
23 #include <linux/workqueue.h>
24 #include <linux/types.h>
25 #include <linux/spinlock.h>
26 #include <linux/etherdevice.h>
27 #include <linux/leds.h>
28 #include <linux/idr.h>
29 #include <linux/rhashtable.h>
30 #include <net/ieee80211_radiotap.h>
31 #include <net/cfg80211.h>
32 #include <net/mac80211.h>
38 extern const struct cfg80211_ops mac80211_config_ops;
40 struct ieee80211_local;
42 /* Maximum number of broadcast/multicast frames to buffer when some of the
43 * associated stations are using power saving. */
44 #define AP_MAX_BC_BUFFER 128
46 /* Maximum number of frames buffered to all STAs, including multicast frames.
47 * Note: increasing this limit increases the potential memory requirement. Each
48 * frame can be up to about 2 kB long. */
49 #define TOTAL_MAX_TX_BUFFER 512
51 /* Required encryption head and tailroom */
52 #define IEEE80211_ENCRYPT_HEADROOM 8
53 #define IEEE80211_ENCRYPT_TAILROOM 18
55 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
56 * reception of at least three fragmented frames. This limit can be increased
57 * by changing this define, at the cost of slower frame reassembly and
58 * increased memory use (about 2 kB of RAM per entry). */
59 #define IEEE80211_FRAGMENT_MAX 4
61 /* power level hasn't been configured (or set to automatic) */
62 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN
65 * Some APs experience problems when working with U-APSD. Decreasing the
66 * probability of that happening by using legacy mode for all ACs but VO isn't
69 * Cisco 4410N originally forced us to enable VO by default only because it
70 * treated non-VO ACs as legacy.
72 * However some APs (notably Netgear R7000) silently reclassify packets to
73 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval
74 * clients would never see some frames (e.g. ARP responses) or would fetch them
75 * accidentally after a long time.
77 * It makes little sense to enable u-APSD queues by default because it needs
78 * userspace applications to be aware of it to actually take advantage of the
79 * possible additional powersavings. Implicitly depending on driver autotrigger
80 * frame support doesn't make much sense.
82 #define IEEE80211_DEFAULT_UAPSD_QUEUES 0
84 #define IEEE80211_DEFAULT_MAX_SP_LEN \
85 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
87 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
89 #define IEEE80211_MAX_NAN_INSTANCE_ID 255
91 struct ieee80211_fragment_entry {
92 struct sk_buff_head skb_list;
93 unsigned long first_frag_time;
98 bool check_sequential_pn; /* needed for CCMP/GCMP */
99 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
103 struct ieee80211_bss {
104 u32 device_ts_beacon, device_ts_presp;
107 bool uapsd_supported;
109 #define IEEE80211_MAX_SUPP_RATES 32
110 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
111 size_t supp_rates_len;
112 struct ieee80211_rate *beacon_rate;
115 * During association, we save an ERP value from a probe response so
116 * that we can feed ERP info to the driver when handling the
117 * association completes. these fields probably won't be up-to-date
118 * otherwise, you probably don't want to use them.
123 /* Keep track of the corruption of the last beacon/probe response. */
126 /* Keep track of what bits of information we have valid info for. */
131 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
132 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
133 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
135 * These are bss flags that are attached to a bss in the
136 * @corrupt_data field of &struct ieee80211_bss.
138 enum ieee80211_bss_corrupt_data_flags {
139 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
140 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
144 * enum ieee80211_valid_data_flags - BSS valid data flags
145 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
146 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
147 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
149 * These are bss flags that are attached to a bss in the
150 * @valid_data field of &struct ieee80211_bss. They show which parts
151 * of the data structure were received as a result of an un-corrupted
152 * beacon/probe response.
154 enum ieee80211_bss_valid_data_flags {
155 IEEE80211_BSS_VALID_WMM = BIT(1),
156 IEEE80211_BSS_VALID_RATES = BIT(2),
157 IEEE80211_BSS_VALID_ERP = BIT(3)
160 typedef unsigned __bitwise__ ieee80211_tx_result;
161 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
162 #define TX_DROP ((__force ieee80211_tx_result) 1u)
163 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
165 #define IEEE80211_TX_UNICAST BIT(1)
166 #define IEEE80211_TX_PS_BUFFERED BIT(2)
168 struct ieee80211_tx_data {
170 struct sk_buff_head skbs;
171 struct ieee80211_local *local;
172 struct ieee80211_sub_if_data *sdata;
173 struct sta_info *sta;
174 struct ieee80211_key *key;
175 struct ieee80211_tx_rate rate;
181 typedef unsigned __bitwise__ ieee80211_rx_result;
182 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
183 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
184 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
185 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
188 * enum ieee80211_packet_rx_flags - packet RX flags
189 * @IEEE80211_RX_AMSDU: a-MSDU packet
190 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
191 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
193 * These are per-frame flags that are attached to a frame in the
194 * @rx_flags field of &struct ieee80211_rx_status.
196 enum ieee80211_packet_rx_flags {
197 IEEE80211_RX_AMSDU = BIT(3),
198 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
199 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
203 * enum ieee80211_rx_flags - RX data flags
205 * @IEEE80211_RX_CMNTR: received on cooked monitor already
206 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
207 * to cfg80211_report_obss_beacon().
209 * These flags are used across handling multiple interfaces
210 * for a single frame.
212 enum ieee80211_rx_flags {
213 IEEE80211_RX_CMNTR = BIT(0),
214 IEEE80211_RX_BEACON_REPORTED = BIT(1),
217 struct ieee80211_rx_data {
218 struct napi_struct *napi;
220 struct ieee80211_local *local;
221 struct ieee80211_sub_if_data *sdata;
222 struct sta_info *sta;
223 struct ieee80211_key *key;
228 * Index into sequence numbers array, 0..16
229 * since the last (16) is used for non-QoS,
230 * will be 16 on non-QoS frames.
235 * Index into the security IV/PN arrays, 0..16
236 * since the last (16) is used for CCMP-encrypted
237 * management frames, will be set to 16 on mgmt
238 * frames and 0 on non-QoS frames.
246 struct ieee80211_csa_settings {
247 const u16 *counter_offsets_beacon;
248 const u16 *counter_offsets_presp;
250 int n_counter_offsets_beacon;
251 int n_counter_offsets_presp;
258 int head_len, tail_len;
259 struct ieee80211_meshconf_ie *meshconf;
260 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
261 u8 csa_current_counter;
262 struct rcu_head rcu_head;
266 struct rcu_head rcu_head;
268 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
273 /* yes, this looks ugly, but guarantees that we can later use
275 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
276 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
277 __aligned(__alignof__(unsigned long));
278 struct sk_buff_head bc_buf;
279 atomic_t num_sta_ps; /* number of stations in PS mode */
284 struct ieee80211_if_ap {
285 struct beacon_data __rcu *beacon;
286 struct probe_resp __rcu *probe_resp;
288 /* to be used after channel switch. */
289 struct cfg80211_beacon_data *next_beacon;
290 struct list_head vlans; /* write-protected with RTNL and local->mtx */
293 atomic_t num_mcast_sta; /* number of stations receiving multicast */
294 enum ieee80211_smps_mode req_smps, /* requested smps mode */
295 driver_smps_mode; /* smps mode request */
297 struct work_struct request_smps_work;
300 struct ieee80211_if_wds {
301 struct sta_info *sta;
302 u8 remote_addr[ETH_ALEN];
305 struct ieee80211_if_vlan {
306 struct list_head list; /* write-protected with RTNL and local->mtx */
308 /* used for all tx if the VLAN is configured to 4-addr mode */
309 struct sta_info __rcu *sta;
313 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
314 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
315 __u32 fwded_frames; /* Mesh total forwarded frames */
316 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
317 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
318 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
321 #define PREQ_Q_F_START 0x1
322 #define PREQ_Q_F_REFRESH 0x2
323 struct mesh_preq_queue {
324 struct list_head list;
329 struct ieee80211_roc_work {
330 struct list_head list;
332 struct ieee80211_sub_if_data *sdata;
334 struct ieee80211_channel *chan;
336 bool started, abort, hw_begun, notified;
339 unsigned long start_time;
341 u32 duration, req_duration;
342 struct sk_buff *frame;
343 u64 cookie, mgmt_tx_cookie;
344 enum ieee80211_roc_type type;
347 /* flags used in struct ieee80211_if_managed.flags */
348 enum ieee80211_sta_flags {
349 IEEE80211_STA_CONNECTION_POLL = BIT(1),
350 IEEE80211_STA_CONTROL_PORT = BIT(2),
351 IEEE80211_STA_DISABLE_HT = BIT(4),
352 IEEE80211_STA_MFP_ENABLED = BIT(6),
353 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
354 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
355 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
356 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
357 IEEE80211_STA_DISABLE_VHT = BIT(11),
358 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
359 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
360 IEEE80211_STA_DISABLE_WMM = BIT(14),
361 IEEE80211_STA_ENABLE_RRM = BIT(15),
364 struct ieee80211_mgd_auth_data {
365 struct cfg80211_bss *bss;
366 unsigned long timeout;
368 u16 algorithm, expected_transaction;
370 u8 key[WLAN_KEY_LEN_WEP104];
373 bool timeout_started;
375 u16 sae_trans, sae_status;
380 struct ieee80211_mgd_assoc_data {
381 struct cfg80211_bss *bss;
382 const u8 *supp_rates;
384 unsigned long timeout;
388 u8 prev_bssid[ETH_ALEN];
389 u8 ssid[IEEE80211_MAX_SSID_LEN];
395 bool timeout_started;
399 struct ieee80211_vht_cap ap_vht_cap;
405 struct ieee80211_sta_tx_tspec {
406 /* timestamp of the first packet in the time slice */
407 unsigned long time_slice_start;
409 u32 admitted_time; /* in usecs, unlike over the air */
411 s8 up; /* signed to be able to invalidate with -1 during teardown */
413 /* consumed TX time in microseconds in the time slice */
414 u32 consumed_tx_time;
416 TX_TSPEC_ACTION_NONE = 0,
417 TX_TSPEC_ACTION_DOWNGRADE,
418 TX_TSPEC_ACTION_STOP_DOWNGRADE,
423 DECLARE_EWMA(beacon_signal, 16, 4)
425 struct ieee80211_if_managed {
426 struct timer_list timer;
427 struct timer_list conn_mon_timer;
428 struct timer_list bcn_mon_timer;
429 struct timer_list chswitch_timer;
430 struct work_struct monitor_work;
431 struct work_struct chswitch_work;
432 struct work_struct beacon_connection_loss_work;
433 struct work_struct csa_connection_drop_work;
435 unsigned long beacon_timeout;
436 unsigned long probe_timeout;
437 int probe_send_count;
438 bool nullfunc_failed;
439 bool connection_loss;
441 struct cfg80211_bss *associated;
442 struct ieee80211_mgd_auth_data *auth_data;
443 struct ieee80211_mgd_assoc_data *assoc_data;
449 bool powersave; /* powersave requested for this iface */
450 bool broken_ap; /* AP is broken -- turn off powersave */
453 enum ieee80211_smps_mode req_smps, /* requested smps mode */
454 driver_smps_mode; /* smps mode request */
456 struct work_struct request_smps_work;
460 bool csa_waiting_bcn;
461 bool csa_ignored_same_chan;
463 bool beacon_crc_valid;
467 bool status_received;
471 IEEE80211_MFP_DISABLED,
472 IEEE80211_MFP_OPTIONAL,
473 IEEE80211_MFP_REQUIRED
474 } mfp; /* management frame protection */
477 * Bitmask of enabled u-apsd queues,
478 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
481 unsigned int uapsd_queues;
484 * Maximum number of buffered frames AP can deliver during a
485 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
486 * Needs a new association to take effect.
488 unsigned int uapsd_max_sp_len;
490 int wmm_last_param_set;
496 struct ewma_beacon_signal ave_beacon_signal;
499 * Number of Beacon frames used in ave_beacon_signal. This can be used
500 * to avoid generating less reliable cqm events that would be based
501 * only on couple of received frames.
503 unsigned int count_beacon_signal;
505 /* Number of times beacon loss was invoked. */
506 unsigned int beacon_loss_count;
509 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
510 * that triggered a cqm event. 0 indicates that no event has been
511 * generated for the current association.
513 int last_cqm_event_signal;
516 * State variables for keeping track of RSSI of the AP currently
517 * connected to and informing driver when RSSI has gone
518 * below/above a certain threshold.
520 int rssi_min_thold, rssi_max_thold;
521 int last_ave_beacon_signal;
523 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
524 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
525 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
526 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
529 u8 tdls_peer[ETH_ALEN] __aligned(2);
530 struct delayed_work tdls_peer_del_work;
531 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
532 struct sk_buff *teardown_skb; /* A copy to send through the AP */
533 spinlock_t teardown_lock; /* To lock changing teardown_skb */
534 bool tdls_chan_switch_prohibited;
535 bool tdls_wider_bw_prohibited;
537 /* WMM-AC TSPEC support */
538 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
539 /* Use a separate work struct so that we can do something here
540 * while the sdata->work is flushing the queues, for example.
541 * otherwise, in scenarios where we hardly get any traffic out
542 * on the BE queue, but there's a lot of VO traffic, we might
543 * get stuck in a downgraded situation and flush takes forever.
545 struct delayed_work tx_tspec_wk;
548 struct ieee80211_if_ibss {
549 struct timer_list timer;
550 struct work_struct csa_connection_drop_work;
552 unsigned long last_scan_completed;
561 bool userspace_handles_dfs;
563 u8 bssid[ETH_ALEN] __aligned(2);
564 u8 ssid[IEEE80211_MAX_SSID_LEN];
567 struct cfg80211_chan_def chandef;
569 unsigned long ibss_join_req;
570 /* probe response/beacon for IBSS */
571 struct beacon_data __rcu *presp;
573 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
574 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
576 spinlock_t incomplete_lock;
577 struct list_head incomplete_stations;
580 IEEE80211_IBSS_MLME_SEARCH,
581 IEEE80211_IBSS_MLME_JOINED,
586 * struct ieee80211_if_ocb - OCB mode state
588 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
589 * @wrkq_flags: OCB deferred task action
590 * @incomplete_lock: delayed STA insertion lock
591 * @incomplete_stations: list of STAs waiting for delayed insertion
592 * @joined: indication if the interface is connected to an OCB network
594 struct ieee80211_if_ocb {
595 struct timer_list housekeeping_timer;
596 unsigned long wrkq_flags;
598 spinlock_t incomplete_lock;
599 struct list_head incomplete_stations;
605 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
607 * these declarations define the interface, which enables
608 * vendor-specific mesh synchronization
611 struct ieee802_11_elems;
612 struct ieee80211_mesh_sync_ops {
613 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
615 struct ieee80211_mgmt *mgmt,
616 struct ieee802_11_elems *elems,
617 struct ieee80211_rx_status *rx_status);
619 /* should be called with beacon_data under RCU read lock */
620 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata,
621 struct beacon_data *beacon);
622 /* add other framework functions here */
625 struct mesh_csa_settings {
626 struct rcu_head rcu_head;
627 struct cfg80211_csa_settings settings;
630 struct ieee80211_if_mesh {
631 struct timer_list housekeeping_timer;
632 struct timer_list mesh_path_timer;
633 struct timer_list mesh_path_root_timer;
635 unsigned long wrkq_flags;
636 unsigned long mbss_changed;
638 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
640 /* Active Path Selection Protocol Identifier */
642 /* Active Path Selection Metric Identifier */
644 /* Congestion Control Mode Identifier */
646 /* Synchronization Protocol Identifier */
648 /* Authentication Protocol Identifier */
650 /* Local mesh Sequence Number */
652 /* Last used PREQ ID */
655 /* Timestamp of last SN update */
656 unsigned long last_sn_update;
657 /* Time when it's ok to send next PERR */
658 unsigned long next_perr;
659 /* Timestamp of last PREQ sent */
660 unsigned long last_preq;
661 struct mesh_rmc *rmc;
662 spinlock_t mesh_preq_queue_lock;
663 struct mesh_preq_queue preq_queue;
665 struct mesh_stats mshstats;
666 struct mesh_config mshcfg;
667 atomic_t estab_plinks;
669 bool accepting_plinks;
671 struct beacon_data __rcu *beacon;
675 IEEE80211_MESH_SEC_NONE = 0x0,
676 IEEE80211_MESH_SEC_AUTHED = 0x1,
677 IEEE80211_MESH_SEC_SECURED = 0x2,
680 /* Extensible Synchronization Framework */
681 const struct ieee80211_mesh_sync_ops *sync_ops;
682 s64 sync_offset_clockdrift_max;
683 spinlock_t sync_offset_lock;
685 /* mesh power save */
686 enum nl80211_mesh_power_mode nonpeer_pm;
687 int ps_peers_light_sleep;
688 int ps_peers_deep_sleep;
690 /* Channel Switching Support */
691 struct mesh_csa_settings __rcu *csa;
693 IEEE80211_MESH_CSA_ROLE_NONE,
694 IEEE80211_MESH_CSA_ROLE_INIT,
695 IEEE80211_MESH_CSA_ROLE_REPEATER,
700 /* offset from skb->data while building IE */
703 struct mesh_table *mesh_paths;
704 struct mesh_table *mpp_paths; /* Store paths for MPP&MAP */
705 int mesh_paths_generation;
706 int mpp_paths_generation;
709 #ifdef CONFIG_MAC80211_MESH
710 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
711 do { (msh)->mshstats.name++; } while (0)
713 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
718 * enum ieee80211_sub_if_data_flags - virtual interface flags
720 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
721 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
722 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
723 * associated stations and deliver multicast frames both
724 * back to wireless media and to the local net stack.
725 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
726 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
728 enum ieee80211_sub_if_data_flags {
729 IEEE80211_SDATA_ALLMULTI = BIT(0),
730 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
731 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
732 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
733 IEEE80211_SDATA_IN_DRIVER = BIT(5),
737 * enum ieee80211_sdata_state_bits - virtual interface state bits
738 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
739 * mirrors netif_running() but is separate for interface type
740 * change handling while the interface is up
741 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
742 * mode, so queues are stopped
743 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
744 * to offchannel, reset when offchannel returns
746 enum ieee80211_sdata_state_bits {
748 SDATA_STATE_OFFCHANNEL,
749 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
753 * enum ieee80211_chanctx_mode - channel context configuration mode
755 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
756 * multiple interfaces
757 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
758 * only by a single interface. This can be used for example for
759 * non-fixed channel IBSS.
761 enum ieee80211_chanctx_mode {
762 IEEE80211_CHANCTX_SHARED,
763 IEEE80211_CHANCTX_EXCLUSIVE
767 * enum ieee80211_chanctx_replace_state - channel context replacement state
769 * This is used for channel context in-place reservations that require channel
770 * context switch/swap.
772 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
773 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
774 * by a (not yet registered) channel context pointed by %replace_ctx.
775 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
776 * replaces an existing channel context pointed to by %replace_ctx.
778 enum ieee80211_chanctx_replace_state {
779 IEEE80211_CHANCTX_REPLACE_NONE,
780 IEEE80211_CHANCTX_WILL_BE_REPLACED,
781 IEEE80211_CHANCTX_REPLACES_OTHER,
784 struct ieee80211_chanctx {
785 struct list_head list;
786 struct rcu_head rcu_head;
788 struct list_head assigned_vifs;
789 struct list_head reserved_vifs;
791 enum ieee80211_chanctx_replace_state replace_state;
792 struct ieee80211_chanctx *replace_ctx;
794 enum ieee80211_chanctx_mode mode;
797 struct ieee80211_chanctx_conf conf;
800 struct mac80211_qos_map {
801 struct cfg80211_qos_map qos_map;
802 struct rcu_head rcu_head;
805 enum txq_info_flags {
808 IEEE80211_TXQ_NO_AMSDU,
812 * struct txq_info - per tid queue
814 * @tin: contains packets split into multiple flows
815 * @def_flow: used as a fallback flow when a packet destined to @tin hashes to
816 * a fq_flow which is already owned by a different tin
817 * @def_cvars: codel vars for @def_flow
821 struct fq_flow def_flow;
822 struct codel_vars def_cvars;
823 struct codel_stats cstats;
827 struct ieee80211_txq txq;
830 struct ieee80211_if_mntr {
832 u8 mu_follow_addr[ETH_ALEN] __aligned(2);
836 * struct ieee80211_if_nan - NAN state
838 * @conf: current NAN configuration
839 * @func_ids: a bitmap of available instance_id's
841 struct ieee80211_if_nan {
842 struct cfg80211_nan_conf conf;
844 /* protects function_inst_ids */
845 spinlock_t func_lock;
846 struct idr function_inst_ids;
849 struct ieee80211_sub_if_data {
850 struct list_head list;
852 struct wireless_dev wdev;
855 struct list_head key_list;
857 /* count for keys needing tailroom space allocation */
858 int crypto_tx_tailroom_needed_cnt;
859 int crypto_tx_tailroom_pending_dec;
860 struct delayed_work dec_tailroom_needed_wk;
862 struct net_device *dev;
863 struct ieee80211_local *local;
871 /* Fragment table for host-based reassembly */
872 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
873 unsigned int fragment_next;
875 /* TID bitmap for NoAck policy */
878 /* bit field of ACM bits (BIT(802.1D tag)) */
881 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
882 struct ieee80211_key __rcu *default_unicast_key;
883 struct ieee80211_key __rcu *default_multicast_key;
884 struct ieee80211_key __rcu *default_mgmt_key;
887 __be16 control_port_protocol;
888 bool control_port_no_encrypt;
889 int encrypt_headroom;
891 atomic_t num_tx_queued;
892 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
893 struct mac80211_qos_map __rcu *qos_map;
895 struct work_struct csa_finalize_work;
896 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
897 struct cfg80211_chan_def csa_chandef;
899 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
900 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
902 /* context reservation -- protected with chanctx_mtx */
903 struct ieee80211_chanctx *reserved_chanctx;
904 struct cfg80211_chan_def reserved_chandef;
905 bool reserved_radar_required;
908 /* used to reconfigure hardware SM PS */
909 struct work_struct recalc_smps;
911 struct work_struct work;
912 struct sk_buff_head skb_queue;
915 enum ieee80211_smps_mode smps_mode;
917 int user_power_level; /* in dBm */
918 int ap_power_level; /* in dBm */
921 struct delayed_work dfs_cac_timer_work;
924 * AP this belongs to: self in AP mode and
925 * corresponding AP in VLAN mode, NULL for
926 * all others (might be needed later in IBSS)
928 struct ieee80211_if_ap *bss;
930 /* bitmap of allowed (non-MCS) rate indexes for rate control */
931 u32 rc_rateidx_mask[NUM_NL80211_BANDS];
933 bool rc_has_mcs_mask[NUM_NL80211_BANDS];
934 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
936 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
937 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
940 struct ieee80211_if_ap ap;
941 struct ieee80211_if_wds wds;
942 struct ieee80211_if_vlan vlan;
943 struct ieee80211_if_managed mgd;
944 struct ieee80211_if_ibss ibss;
945 struct ieee80211_if_mesh mesh;
946 struct ieee80211_if_ocb ocb;
947 struct ieee80211_if_mntr mntr;
948 struct ieee80211_if_nan nan;
951 #ifdef CONFIG_MAC80211_DEBUGFS
953 struct dentry *subdir_stations;
954 struct dentry *default_unicast_key;
955 struct dentry *default_multicast_key;
956 struct dentry *default_mgmt_key;
960 /* must be last, dynamically sized area in this! */
961 struct ieee80211_vif vif;
965 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
967 return container_of(p, struct ieee80211_sub_if_data, vif);
970 static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
971 __acquires(&sdata->wdev.mtx)
973 mutex_lock(&sdata->wdev.mtx);
974 __acquire(&sdata->wdev.mtx);
977 static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
978 __releases(&sdata->wdev.mtx)
980 mutex_unlock(&sdata->wdev.mtx);
981 __release(&sdata->wdev.mtx);
984 #define sdata_dereference(p, sdata) \
985 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
988 sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
990 lockdep_assert_held(&sdata->wdev.mtx);
993 static inline enum nl80211_band
994 ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
996 enum nl80211_band band = NL80211_BAND_2GHZ;
997 struct ieee80211_chanctx_conf *chanctx_conf;
1000 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1001 if (!WARN_ON(!chanctx_conf))
1002 band = chanctx_conf->def.chan->band;
1009 ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
1011 switch (chandef->width) {
1012 case NL80211_CHAN_WIDTH_5:
1014 case NL80211_CHAN_WIDTH_10:
1022 ieee80211_vif_get_shift(struct ieee80211_vif *vif)
1024 struct ieee80211_chanctx_conf *chanctx_conf;
1028 chanctx_conf = rcu_dereference(vif->chanctx_conf);
1030 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
1036 struct ieee80211_rx_agg {
1041 enum sdata_queue_type {
1042 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
1043 IEEE80211_SDATA_QUEUE_AGG_START = 1,
1044 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
1045 IEEE80211_SDATA_QUEUE_RX_AGG_START = 3,
1046 IEEE80211_SDATA_QUEUE_RX_AGG_STOP = 4,
1050 IEEE80211_RX_MSG = 1,
1051 IEEE80211_TX_STATUS_MSG = 2,
1054 enum queue_stop_reason {
1055 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1056 IEEE80211_QUEUE_STOP_REASON_PS,
1057 IEEE80211_QUEUE_STOP_REASON_CSA,
1058 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1059 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1060 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1061 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1062 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1063 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1064 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1066 IEEE80211_QUEUE_STOP_REASONS,
1069 #ifdef CONFIG_MAC80211_LEDS
1070 struct tpt_led_trigger {
1072 const struct ieee80211_tpt_blink *blink_table;
1073 unsigned int blink_table_len;
1074 struct timer_list timer;
1075 unsigned long prev_traffic;
1076 unsigned long tx_bytes, rx_bytes;
1077 unsigned int active, want;
1083 * mac80211 scan flags - currently active scan mode
1085 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1086 * well be on the operating channel
1087 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1088 * determine if we are on the operating channel or not
1089 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1090 * channel. This should not interrupt normal traffic.
1091 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1092 * that the scan completed.
1093 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1094 * a scan complete for an aborted scan.
1095 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1101 SCAN_ONCHANNEL_SCANNING,
1108 * enum mac80211_scan_state - scan state machine states
1110 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1111 * determines if we should keep on scanning or switch back to the
1113 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1114 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1115 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1117 * @SCAN_RESUME: Resume the scan and scan the next channel
1118 * @SCAN_ABORT: Abort the scan and go back to operating channel
1120 enum mac80211_scan_state {
1129 struct ieee80211_local {
1130 /* embed the driver visible part.
1131 * don't cast (use the static inlines below), but we keep
1132 * it first anyway so they become a no-op */
1133 struct ieee80211_hw hw;
1136 struct codel_vars *cvars;
1137 struct codel_params cparams;
1139 const struct ieee80211_ops *ops;
1142 * private workqueue to mac80211. mac80211 makes this accessible
1143 * via ieee80211_queue_work()
1145 struct workqueue_struct *workqueue;
1147 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1148 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1149 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1150 spinlock_t queue_stop_reason_lock;
1153 int monitors, cooked_mntrs;
1154 /* number of interfaces with corresponding FIF_ flags */
1155 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1158 unsigned int filter_flags; /* FIF_* */
1160 bool wiphy_ciphers_allocated;
1164 /* protects the aggregated multicast list and filter calls */
1165 spinlock_t filter_lock;
1167 /* used for uploading changed mc list */
1168 struct work_struct reconfig_filter;
1170 /* aggregated multicast list */
1171 struct netdev_hw_addr_list mc_list;
1173 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1176 * suspended is true if we finished all the suspend _and_ we have
1177 * not yet come up from resume. This is to be used by mac80211
1178 * to ensure driver sanity during suspend and mac80211's own
1179 * sanity. It can eventually be used for WoW as well.
1184 * Resuming is true while suspended, but when we're reprogramming the
1185 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1186 * again even though some other parts of the stack are still suspended
1187 * and we still drop received frames to avoid waking the stack.
1192 * quiescing is true during the suspend process _only_ to
1193 * ease timer cancelling etc.
1197 /* device is started */
1200 /* device is during a HW reconfig */
1203 /* wowlan is enabled -- don't reconfig on resume */
1206 struct work_struct radar_detected_work;
1208 /* number of RX chains the hardware has */
1211 int tx_headroom; /* required headroom for hardware/radiotap */
1213 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1214 * added to skb_queue will be processed, but frames in
1215 * skb_queue_unreliable may be dropped if the total length of these
1216 * queues increases over the limit. */
1217 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1218 struct tasklet_struct tasklet;
1219 struct sk_buff_head skb_queue;
1220 struct sk_buff_head skb_queue_unreliable;
1222 spinlock_t rx_path_lock;
1226 * The mutex only protects the list, hash table and
1227 * counter, reads are done with RCU.
1229 struct mutex sta_mtx;
1230 spinlock_t tim_lock;
1231 unsigned long num_sta;
1232 struct list_head sta_list;
1233 struct rhashtable sta_hash;
1234 struct timer_list sta_cleanup;
1237 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1238 struct tasklet_struct tx_pending_tasklet;
1240 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1242 /* number of interfaces with allmulti RX */
1243 atomic_t iff_allmultis;
1245 struct rate_control_ref *rate_ctrl;
1247 struct crypto_cipher *wep_tx_tfm;
1248 struct crypto_cipher *wep_rx_tfm;
1252 struct list_head interfaces;
1253 struct mutex iflist_mtx;
1256 * Key mutex, protects sdata's key_list and sta_info's
1257 * key pointers (write access, they're RCU.)
1259 struct mutex key_mtx;
1261 /* mutex for scan and work locking */
1264 /* Scanning and BSS list */
1265 unsigned long scanning;
1266 struct cfg80211_ssid scan_ssid;
1267 struct cfg80211_scan_request *int_scan_req;
1268 struct cfg80211_scan_request __rcu *scan_req;
1269 struct ieee80211_scan_request *hw_scan_req;
1270 struct cfg80211_chan_def scan_chandef;
1271 enum nl80211_band hw_scan_band;
1272 int scan_channel_idx;
1274 int hw_scan_ies_bufsize;
1275 struct cfg80211_scan_info scan_info;
1277 struct work_struct sched_scan_stopped_work;
1278 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1279 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1280 u8 scan_addr[ETH_ALEN];
1282 unsigned long leave_oper_channel_time;
1283 enum mac80211_scan_state next_scan_state;
1284 struct delayed_work scan_work;
1285 struct ieee80211_sub_if_data __rcu *scan_sdata;
1286 /* For backward compatibility only -- do not use */
1287 struct cfg80211_chan_def _oper_chandef;
1289 /* Temporary remain-on-channel for off-channel operations */
1290 struct ieee80211_channel *tmp_channel;
1292 /* channel contexts */
1293 struct list_head chanctx_list;
1294 struct mutex chanctx_mtx;
1296 #ifdef CONFIG_MAC80211_LEDS
1297 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1298 struct led_trigger tpt_led;
1299 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1300 atomic_t radio_led_active, tpt_led_active;
1301 struct tpt_led_trigger *tpt_led_trigger;
1304 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1306 /* dot11CountersTable */
1307 u32 dot11TransmittedFragmentCount;
1308 u32 dot11MulticastTransmittedFrameCount;
1309 u32 dot11FailedCount;
1310 u32 dot11RetryCount;
1311 u32 dot11MultipleRetryCount;
1312 u32 dot11FrameDuplicateCount;
1313 u32 dot11ReceivedFragmentCount;
1314 u32 dot11MulticastReceivedFrameCount;
1315 u32 dot11TransmittedFrameCount;
1317 /* TX/RX handler statistics */
1318 unsigned int tx_handlers_drop;
1319 unsigned int tx_handlers_queued;
1320 unsigned int tx_handlers_drop_wep;
1321 unsigned int tx_handlers_drop_not_assoc;
1322 unsigned int tx_handlers_drop_unauth_port;
1323 unsigned int rx_handlers_drop;
1324 unsigned int rx_handlers_queued;
1325 unsigned int rx_handlers_drop_nullfunc;
1326 unsigned int rx_handlers_drop_defrag;
1327 unsigned int tx_expand_skb_head;
1328 unsigned int tx_expand_skb_head_cloned;
1329 unsigned int rx_expand_skb_head_defrag;
1330 unsigned int rx_handlers_fragments;
1331 unsigned int tx_status_drop;
1332 #define I802_DEBUG_INC(c) (c)++
1333 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1334 #define I802_DEBUG_INC(c) do { } while (0)
1335 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1338 int total_ps_buffered; /* total number of all buffered unicast and
1339 * multicast packets for power saving stations
1343 bool offchannel_ps_enabled;
1345 * PS can only be enabled when we have exactly one managed
1346 * interface (and monitors) in PS, this then points there.
1348 struct ieee80211_sub_if_data *ps_sdata;
1349 struct work_struct dynamic_ps_enable_work;
1350 struct work_struct dynamic_ps_disable_work;
1351 struct timer_list dynamic_ps_timer;
1352 struct notifier_block ifa_notifier;
1353 struct notifier_block ifa6_notifier;
1356 * The dynamic ps timeout configured from user space via WEXT -
1357 * this will override whatever chosen by mac80211 internally.
1359 int dynamic_ps_forced_timeout;
1361 int user_power_level; /* in dBm, for all interfaces */
1363 enum ieee80211_smps_mode smps_mode;
1365 struct work_struct restart_work;
1367 #ifdef CONFIG_MAC80211_DEBUGFS
1368 struct local_debugfsdentries {
1369 struct dentry *rcdir;
1370 struct dentry *keys;
1375 * Remain-on-channel support
1377 struct delayed_work roc_work;
1378 struct list_head roc_list;
1379 struct work_struct hw_roc_start, hw_roc_done;
1380 unsigned long hw_roc_start_time;
1381 u64 roc_cookie_counter;
1383 struct idr ack_status_frames;
1384 spinlock_t ack_status_lock;
1386 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1388 /* virtual monitor interface */
1389 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1390 struct cfg80211_chan_def monitor_chandef;
1392 /* extended capabilities provided by mac80211 */
1395 /* TDLS channel switch */
1396 struct work_struct tdls_chsw_work;
1397 struct sk_buff_head skb_queue_tdls_chsw;
1400 static inline struct ieee80211_sub_if_data *
1401 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1403 return netdev_priv(dev);
1406 static inline struct ieee80211_sub_if_data *
1407 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1409 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1412 /* this struct represents 802.11n's RA/TID combination */
1413 struct ieee80211_ra_tid {
1418 /* this struct holds the value parsing from channel switch IE */
1419 struct ieee80211_csa_ie {
1420 struct cfg80211_chan_def chandef;
1427 /* Parsed Information Elements */
1428 struct ieee802_11_elems {
1432 /* pointers to IEs */
1433 const struct ieee80211_tdls_lnkie *lnk_id;
1434 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1435 const u8 *ext_capab;
1437 const u8 *supp_rates;
1438 const u8 *ds_params;
1439 const struct ieee80211_tim_ie *tim;
1440 const u8 *challenge;
1443 const u8 *ext_supp_rates;
1445 const u8 *wmm_param;
1446 const struct ieee80211_ht_cap *ht_cap_elem;
1447 const struct ieee80211_ht_operation *ht_operation;
1448 const struct ieee80211_vht_cap *vht_cap_elem;
1449 const struct ieee80211_vht_operation *vht_operation;
1450 const struct ieee80211_meshconf_ie *mesh_config;
1453 const __le16 *awake_window;
1457 const struct ieee80211_rann_ie *rann;
1458 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1459 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1460 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1461 const u8 *country_elem;
1462 const u8 *pwr_constr_elem;
1463 const u8 *cisco_dtpc_elem;
1464 const struct ieee80211_timeout_interval_ie *timeout_int;
1465 const u8 *opmode_notif;
1466 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1467 const struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1469 /* length of them, respectively */
1476 u8 ext_supp_rates_len;
1484 u8 country_elem_len;
1486 /* whether a parse error occurred while retrieving these elements */
1490 static inline struct ieee80211_local *hw_to_local(
1491 struct ieee80211_hw *hw)
1493 return container_of(hw, struct ieee80211_local, hw);
1496 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1498 return container_of(txq, struct txq_info, txq);
1501 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1503 return ether_addr_equal(raddr, addr) ||
1504 is_broadcast_ether_addr(raddr);
1508 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1510 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1511 status->flag & RX_FLAG_MACTIME_END);
1512 if (status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END))
1514 /* can't handle HT/VHT preamble yet */
1515 if (status->flag & RX_FLAG_MACTIME_PLCP_START &&
1516 !(status->flag & (RX_FLAG_HT | RX_FLAG_VHT)))
1521 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1522 struct ieee80211_rx_status *status,
1523 unsigned int mpdu_len,
1524 unsigned int mpdu_offset);
1525 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1526 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1527 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1529 void ieee80211_configure_filter(struct ieee80211_local *local);
1530 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1532 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
1533 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1534 u64 *cookie, gfp_t gfp);
1536 void ieee80211_check_fast_rx(struct sta_info *sta);
1537 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1538 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1539 void ieee80211_clear_fast_rx(struct sta_info *sta);
1542 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1543 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1544 struct cfg80211_auth_request *req);
1545 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1546 struct cfg80211_assoc_request *req);
1547 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1548 struct cfg80211_deauth_request *req);
1549 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1550 struct cfg80211_disassoc_request *req);
1551 void ieee80211_send_pspoll(struct ieee80211_local *local,
1552 struct ieee80211_sub_if_data *sdata);
1553 void ieee80211_recalc_ps(struct ieee80211_local *local);
1554 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1555 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1556 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1557 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1558 struct sk_buff *skb);
1559 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1560 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1561 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1562 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1563 __le16 fc, bool acked);
1564 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1565 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1566 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1569 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1570 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1571 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1572 const u8 *bssid, const u8 *addr, u32 supp_rates);
1573 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1574 struct cfg80211_ibss_params *params);
1575 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1576 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1577 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1578 struct sk_buff *skb);
1579 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1580 struct cfg80211_csa_settings *csa_settings);
1581 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
1582 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1585 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1586 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1587 const u8 *bssid, const u8 *addr, u32 supp_rates);
1588 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1589 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1590 struct ocb_setup *setup);
1591 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1594 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1595 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1596 struct sk_buff *skb);
1597 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1598 struct cfg80211_csa_settings *csa_settings);
1599 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
1601 /* scan/BSS handling */
1602 void ieee80211_scan_work(struct work_struct *work);
1603 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1604 const u8 *ssid, u8 ssid_len,
1605 struct ieee80211_channel **channels,
1606 unsigned int n_channels,
1607 enum nl80211_bss_scan_width scan_width);
1608 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1609 struct cfg80211_scan_request *req);
1610 void ieee80211_scan_cancel(struct ieee80211_local *local);
1611 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1612 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1614 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1615 struct ieee80211_bss *
1616 ieee80211_bss_info_update(struct ieee80211_local *local,
1617 struct ieee80211_rx_status *rx_status,
1618 struct ieee80211_mgmt *mgmt,
1620 struct ieee802_11_elems *elems,
1621 struct ieee80211_channel *channel);
1622 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1623 struct ieee80211_bss *bss);
1625 /* scheduled scan handling */
1627 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1628 struct cfg80211_sched_scan_request *req);
1629 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1630 struct cfg80211_sched_scan_request *req);
1631 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
1632 void ieee80211_sched_scan_end(struct ieee80211_local *local);
1633 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1635 /* off-channel/mgmt-tx */
1636 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1637 void ieee80211_offchannel_return(struct ieee80211_local *local);
1638 void ieee80211_roc_setup(struct ieee80211_local *local);
1639 void ieee80211_start_next_roc(struct ieee80211_local *local);
1640 void ieee80211_roc_purge(struct ieee80211_local *local,
1641 struct ieee80211_sub_if_data *sdata);
1642 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
1643 struct ieee80211_channel *chan,
1644 unsigned int duration, u64 *cookie);
1645 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1646 struct wireless_dev *wdev, u64 cookie);
1647 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
1648 struct cfg80211_mgmt_tx_params *params, u64 *cookie);
1649 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1650 struct wireless_dev *wdev, u64 cookie);
1652 /* channel switch handling */
1653 void ieee80211_csa_finalize_work(struct work_struct *work);
1654 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1655 struct cfg80211_csa_settings *params);
1657 /* interface handling */
1658 int ieee80211_iface_init(void);
1659 void ieee80211_iface_exit(void);
1660 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1661 unsigned char name_assign_type,
1662 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1663 struct vif_params *params);
1664 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1665 enum nl80211_iftype type);
1666 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1667 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1668 u32 ieee80211_idle_off(struct ieee80211_local *local);
1669 void ieee80211_recalc_idle(struct ieee80211_local *local);
1670 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1672 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1673 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
1674 int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1675 void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
1677 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1678 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
1681 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1683 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1687 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1688 void ieee80211_tx_pending(unsigned long data);
1689 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1690 struct net_device *dev);
1691 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1692 struct net_device *dev);
1693 void __ieee80211_subif_start_xmit(struct sk_buff *skb,
1694 struct net_device *dev,
1696 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1697 struct sk_buff_head *skbs);
1699 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
1700 struct sk_buff *skb, u32 info_flags);
1701 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
1702 struct ieee80211_supported_band *sband,
1703 int retry_count, int shift, bool send_to_cooked);
1705 void ieee80211_check_fast_xmit(struct sta_info *sta);
1706 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
1707 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
1708 void ieee80211_clear_fast_xmit(struct sta_info *sta);
1711 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1712 struct ieee80211_sta_ht_cap *ht_cap);
1713 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1714 struct ieee80211_supported_band *sband,
1715 const struct ieee80211_ht_cap *ht_cap_ie,
1716 struct sta_info *sta);
1717 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1718 const u8 *da, u16 tid,
1719 u16 initiator, u16 reason_code);
1720 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1721 enum ieee80211_smps_mode smps, const u8 *da,
1723 void ieee80211_request_smps_ap_work(struct work_struct *work);
1724 void ieee80211_request_smps_mgd_work(struct work_struct *work);
1725 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
1726 enum ieee80211_smps_mode smps_mode_new);
1728 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1729 u16 initiator, u16 reason, bool stop);
1730 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1731 u16 initiator, u16 reason, bool stop);
1732 void __ieee80211_start_rx_ba_session(struct sta_info *sta,
1733 u8 dialog_token, u16 timeout,
1734 u16 start_seq_num, u16 ba_policy, u16 tid,
1735 u16 buf_size, bool tx, bool auto_seq);
1736 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1737 enum ieee80211_agg_stop_reason reason);
1738 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1739 struct sta_info *sta,
1740 struct ieee80211_mgmt *mgmt, size_t len);
1741 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1742 struct sta_info *sta,
1743 struct ieee80211_mgmt *mgmt,
1745 void ieee80211_process_addba_request(struct ieee80211_local *local,
1746 struct sta_info *sta,
1747 struct ieee80211_mgmt *mgmt,
1750 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1751 enum ieee80211_agg_stop_reason reason);
1752 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1753 enum ieee80211_agg_stop_reason reason);
1754 void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1755 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
1756 void ieee80211_ba_session_work(struct work_struct *work);
1757 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1758 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1760 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1764 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1765 struct ieee80211_supported_band *sband,
1766 const struct ieee80211_vht_cap *vht_cap_ie,
1767 struct sta_info *sta);
1768 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta);
1769 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
1770 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
1771 enum ieee80211_sta_rx_bandwidth
1772 ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
1773 enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta);
1774 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
1775 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
1776 struct ieee80211_mgmt *mgmt);
1777 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1778 struct sta_info *sta, u8 opmode,
1779 enum nl80211_band band);
1780 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1781 struct sta_info *sta, u8 opmode,
1782 enum nl80211_band band);
1783 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
1784 struct ieee80211_sta_vht_cap *vht_cap);
1785 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
1786 u16 vht_mask[NL80211_VHT_NSS_MAX]);
1788 /* Spectrum management */
1789 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1790 struct ieee80211_mgmt *mgmt,
1793 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
1794 * @sdata: the sdata of the interface which has received the frame
1795 * @elems: parsed 802.11 elements received with the frame
1796 * @current_band: indicates the current band
1797 * @sta_flags: contains information about own capabilities and restrictions
1798 * to decide which channel switch announcements can be accepted. Only the
1799 * following subset of &enum ieee80211_sta_flags are evaluated:
1800 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
1801 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
1802 * %IEEE80211_STA_DISABLE_160MHZ.
1803 * @bssid: the currently connected bssid (for reporting)
1804 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
1805 All of them will be filled with if success only.
1806 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
1808 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
1809 struct ieee802_11_elems *elems,
1810 enum nl80211_band current_band,
1811 u32 sta_flags, u8 *bssid,
1812 struct ieee80211_csa_ie *csa_ie);
1814 /* Suspend/resume and hw reconfiguration */
1815 int ieee80211_reconfig(struct ieee80211_local *local);
1816 void ieee80211_stop_device(struct ieee80211_local *local);
1818 int __ieee80211_suspend(struct ieee80211_hw *hw,
1819 struct cfg80211_wowlan *wowlan);
1821 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1823 struct ieee80211_local *local = hw_to_local(hw);
1825 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
1826 !test_bit(SCAN_COMPLETED, &local->scanning),
1827 "%s: resume with hardware scan still in progress\n",
1828 wiphy_name(hw->wiphy));
1830 return ieee80211_reconfig(hw_to_local(hw));
1833 /* utility functions/constants */
1834 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
1835 int ieee80211_frame_duration(enum nl80211_band band, size_t len,
1836 int rate, int erp, int short_preamble,
1838 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1839 bool bss_notify, bool enable_qos);
1840 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
1841 struct sta_info *sta, struct sk_buff *skb);
1843 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1844 struct sk_buff *skb, int tid,
1845 enum nl80211_band band);
1848 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1849 struct sk_buff *skb, int tid,
1850 enum nl80211_band band)
1853 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1857 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1858 struct sk_buff *skb, int tid)
1860 struct ieee80211_chanctx_conf *chanctx_conf;
1863 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1864 if (WARN_ON(!chanctx_conf)) {
1870 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
1871 chanctx_conf->def.chan->band);
1875 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
1876 struct sk_buff *skb)
1878 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1879 ieee80211_tx_skb_tid(sdata, skb, 7);
1882 u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
1883 struct ieee802_11_elems *elems,
1884 u64 filter, u32 crc);
1885 static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
1887 struct ieee802_11_elems *elems)
1889 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
1893 extern const int ieee802_1d_to_ac[8];
1895 static inline int ieee80211_ac_from_tid(int tid)
1897 return ieee802_1d_to_ac[tid & 7];
1900 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1901 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1902 void ieee80211_dynamic_ps_timer(unsigned long data);
1903 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1904 struct ieee80211_sub_if_data *sdata,
1906 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1907 struct ieee80211_hdr *hdr);
1908 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
1909 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
1911 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1912 unsigned long queues,
1913 enum queue_stop_reason reason,
1915 void ieee80211_stop_vif_queues(struct ieee80211_local *local,
1916 struct ieee80211_sub_if_data *sdata,
1917 enum queue_stop_reason reason);
1918 void ieee80211_wake_vif_queues(struct ieee80211_local *local,
1919 struct ieee80211_sub_if_data *sdata,
1920 enum queue_stop_reason reason);
1921 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1922 unsigned long queues,
1923 enum queue_stop_reason reason,
1925 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1926 enum queue_stop_reason reason,
1928 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1929 enum queue_stop_reason reason,
1931 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
1932 void ieee80211_add_pending_skb(struct ieee80211_local *local,
1933 struct sk_buff *skb);
1934 void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1935 struct sk_buff_head *skbs);
1936 void ieee80211_flush_queues(struct ieee80211_local *local,
1937 struct ieee80211_sub_if_data *sdata, bool drop);
1938 void __ieee80211_flush_queues(struct ieee80211_local *local,
1939 struct ieee80211_sub_if_data *sdata,
1940 unsigned int queues, bool drop);
1942 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
1945 * If quiescing is set, we are racing with __ieee80211_suspend.
1946 * __ieee80211_suspend flushes the workers after setting quiescing,
1947 * and we check quiescing / suspended before enqueing new workers.
1948 * We should abort the worker to avoid the races below.
1950 if (local->quiescing)
1954 * We might already be suspended if the following scenario occurs:
1955 * __ieee80211_suspend Control path
1957 * if (local->quiescing)
1959 * local->quiescing = true;
1960 * flush_workqueue();
1962 * local->suspended = true;
1963 * local->quiescing = false;
1964 * worker starts running...
1966 if (local->suspended)
1972 int ieee80211_txq_setup_flows(struct ieee80211_local *local);
1973 void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
1974 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
1975 struct sta_info *sta,
1976 struct txq_info *txq, int tid);
1977 void ieee80211_txq_purge(struct ieee80211_local *local,
1978 struct txq_info *txqi);
1979 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1980 u16 transaction, u16 auth_alg, u16 status,
1981 const u8 *extra, size_t extra_len, const u8 *bssid,
1982 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
1984 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
1985 const u8 *bssid, u16 stype, u16 reason,
1986 bool send_frame, u8 *frame_buf);
1987 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1989 struct ieee80211_scan_ies *ie_desc,
1990 const u8 *ie, size_t ie_len,
1991 u8 bands_used, u32 *rate_masks,
1992 struct cfg80211_chan_def *chandef);
1993 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
1994 const u8 *src, const u8 *dst,
1996 struct ieee80211_channel *chan,
1997 const u8 *ssid, size_t ssid_len,
1998 const u8 *ie, size_t ie_len,
2000 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata,
2001 const u8 *src, const u8 *dst,
2002 const u8 *ssid, size_t ssid_len,
2003 const u8 *ie, size_t ie_len,
2004 u32 ratemask, bool directed, u32 tx_flags,
2005 struct ieee80211_channel *channel, bool scan);
2007 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
2008 struct ieee802_11_elems *elems,
2009 enum nl80211_band band, u32 *basic_rates);
2010 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2011 enum ieee80211_smps_mode smps_mode);
2012 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2013 enum ieee80211_smps_mode smps_mode);
2014 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
2015 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
2017 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
2018 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2020 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2021 const struct cfg80211_chan_def *chandef,
2022 u16 prot_mode, bool rifs_mode);
2023 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2025 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2026 const struct cfg80211_chan_def *chandef);
2027 int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
2028 const struct ieee80211_supported_band *sband,
2029 const u8 *srates, int srates_len, u32 *rates);
2030 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
2031 struct sk_buff *skb, bool need_basic,
2032 enum nl80211_band band);
2033 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
2034 struct sk_buff *skb, bool need_basic,
2035 enum nl80211_band band);
2036 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
2038 /* channel management */
2039 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2040 struct cfg80211_chan_def *chandef);
2041 bool ieee80211_chandef_vht_oper(const struct ieee80211_vht_operation *oper,
2042 struct cfg80211_chan_def *chandef);
2043 u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
2046 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
2047 const struct cfg80211_chan_def *chandef,
2048 enum ieee80211_chanctx_mode mode);
2050 ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
2051 const struct cfg80211_chan_def *chandef,
2052 enum ieee80211_chanctx_mode mode,
2053 bool radar_required);
2055 ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata);
2056 int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);
2059 ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
2060 const struct cfg80211_chan_def *chandef,
2062 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
2063 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
2064 void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
2066 int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2067 struct ieee80211_chanctx *ctx);
2069 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2070 struct ieee80211_chanctx *chanctx);
2071 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2072 struct ieee80211_chanctx *ctx);
2073 bool ieee80211_is_radar_required(struct ieee80211_local *local);
2075 void ieee80211_dfs_cac_timer(unsigned long data);
2076 void ieee80211_dfs_cac_timer_work(struct work_struct *work);
2077 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2078 void ieee80211_dfs_radar_detected_work(struct work_struct *work);
2079 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2080 struct cfg80211_csa_settings *csa_settings);
2082 bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs);
2083 bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n);
2084 const struct ieee80211_cipher_scheme *
2085 ieee80211_cs_get(struct ieee80211_local *local, u32 cipher,
2086 enum nl80211_iftype iftype);
2087 int ieee80211_cs_headroom(struct ieee80211_local *local,
2088 struct cfg80211_crypto_settings *crypto,
2089 enum nl80211_iftype iftype);
2090 void ieee80211_recalc_dtim(struct ieee80211_local *local,
2091 struct ieee80211_sub_if_data *sdata);
2092 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2093 const struct cfg80211_chan_def *chandef,
2094 enum ieee80211_chanctx_mode chanmode,
2096 int ieee80211_max_num_channels(struct ieee80211_local *local);
2097 enum nl80211_chan_width ieee80211_get_sta_bw(struct ieee80211_sta *sta);
2098 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2099 struct ieee80211_chanctx *ctx);
2102 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2103 const u8 *peer, u8 action_code, u8 dialog_token,
2104 u16 status_code, u32 peer_capability,
2105 bool initiator, const u8 *extra_ies,
2106 size_t extra_ies_len);
2107 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2108 const u8 *peer, enum nl80211_tdls_operation oper);
2109 void ieee80211_tdls_peer_del_work(struct work_struct *wk);
2110 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2111 const u8 *addr, u8 oper_class,
2112 struct cfg80211_chan_def *chandef);
2113 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2114 struct net_device *dev,
2116 void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
2117 void ieee80211_tdls_chsw_work(struct work_struct *wk);
2119 extern const struct ethtool_ops ieee80211_ethtool_ops;
2121 #ifdef CONFIG_MAC80211_NOINLINE
2122 #define debug_noinline noinline
2124 #define debug_noinline
2127 #endif /* IEEE80211_I_H */