1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright 2002-2005, Instant802 Networks, Inc.
4 * Copyright 2005, Devicescape Software, Inc.
5 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
6 * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net>
7 * Copyright 2013-2015 Intel Mobile Communications GmbH
8 * Copyright (C) 2018-2020 Intel Corporation
14 #include <linux/kernel.h>
15 #include <linux/device.h>
16 #include <linux/if_ether.h>
17 #include <linux/interrupt.h>
18 #include <linux/list.h>
19 #include <linux/netdevice.h>
20 #include <linux/skbuff.h>
21 #include <linux/workqueue.h>
22 #include <linux/types.h>
23 #include <linux/spinlock.h>
24 #include <linux/etherdevice.h>
25 #include <linux/leds.h>
26 #include <linux/idr.h>
27 #include <linux/rhashtable.h>
28 #include <net/ieee80211_radiotap.h>
29 #include <net/cfg80211.h>
30 #include <net/mac80211.h>
36 extern const struct cfg80211_ops mac80211_config_ops;
38 struct ieee80211_local;
40 /* Maximum number of broadcast/multicast frames to buffer when some of the
41 * associated stations are using power saving. */
42 #define AP_MAX_BC_BUFFER 128
44 /* Maximum number of frames buffered to all STAs, including multicast frames.
45 * Note: increasing this limit increases the potential memory requirement. Each
46 * frame can be up to about 2 kB long. */
47 #define TOTAL_MAX_TX_BUFFER 512
49 /* Required encryption head and tailroom */
50 #define IEEE80211_ENCRYPT_HEADROOM 8
51 #define IEEE80211_ENCRYPT_TAILROOM 18
53 /* power level hasn't been configured (or set to automatic) */
54 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN
57 * Some APs experience problems when working with U-APSD. Decreasing the
58 * probability of that happening by using legacy mode for all ACs but VO isn't
61 * Cisco 4410N originally forced us to enable VO by default only because it
62 * treated non-VO ACs as legacy.
64 * However some APs (notably Netgear R7000) silently reclassify packets to
65 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval
66 * clients would never see some frames (e.g. ARP responses) or would fetch them
67 * accidentally after a long time.
69 * It makes little sense to enable u-APSD queues by default because it needs
70 * userspace applications to be aware of it to actually take advantage of the
71 * possible additional powersavings. Implicitly depending on driver autotrigger
72 * frame support doesn't make much sense.
74 #define IEEE80211_DEFAULT_UAPSD_QUEUES 0
76 #define IEEE80211_DEFAULT_MAX_SP_LEN \
77 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
79 extern const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS];
81 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
83 #define IEEE80211_MAX_NAN_INSTANCE_ID 255
85 struct ieee80211_bss {
86 u32 device_ts_beacon, device_ts_presp;
91 #define IEEE80211_MAX_SUPP_RATES 32
92 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
93 size_t supp_rates_len;
94 struct ieee80211_rate *beacon_rate;
99 * During association, we save an ERP value from a probe response so
100 * that we can feed ERP info to the driver when handling the
101 * association completes. these fields probably won't be up-to-date
102 * otherwise, you probably don't want to use them.
107 /* Keep track of the corruption of the last beacon/probe response. */
110 /* Keep track of what bits of information we have valid info for. */
115 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
116 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
117 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
119 * These are bss flags that are attached to a bss in the
120 * @corrupt_data field of &struct ieee80211_bss.
122 enum ieee80211_bss_corrupt_data_flags {
123 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
124 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
128 * enum ieee80211_valid_data_flags - BSS valid data flags
129 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
130 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
131 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
133 * These are bss flags that are attached to a bss in the
134 * @valid_data field of &struct ieee80211_bss. They show which parts
135 * of the data structure were received as a result of an un-corrupted
136 * beacon/probe response.
138 enum ieee80211_bss_valid_data_flags {
139 IEEE80211_BSS_VALID_WMM = BIT(1),
140 IEEE80211_BSS_VALID_RATES = BIT(2),
141 IEEE80211_BSS_VALID_ERP = BIT(3)
144 typedef unsigned __bitwise ieee80211_tx_result;
145 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
146 #define TX_DROP ((__force ieee80211_tx_result) 1u)
147 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
149 #define IEEE80211_TX_UNICAST BIT(1)
150 #define IEEE80211_TX_PS_BUFFERED BIT(2)
152 struct ieee80211_tx_data {
154 struct sk_buff_head skbs;
155 struct ieee80211_local *local;
156 struct ieee80211_sub_if_data *sdata;
157 struct sta_info *sta;
158 struct ieee80211_key *key;
159 struct ieee80211_tx_rate rate;
165 typedef unsigned __bitwise ieee80211_rx_result;
166 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
167 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
168 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
169 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
172 * enum ieee80211_packet_rx_flags - packet RX flags
173 * @IEEE80211_RX_AMSDU: a-MSDU packet
174 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
175 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
177 * These are per-frame flags that are attached to a frame in the
178 * @rx_flags field of &struct ieee80211_rx_status.
180 enum ieee80211_packet_rx_flags {
181 IEEE80211_RX_AMSDU = BIT(3),
182 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
183 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
187 * enum ieee80211_rx_flags - RX data flags
189 * @IEEE80211_RX_CMNTR: received on cooked monitor already
190 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
191 * to cfg80211_report_obss_beacon().
193 * These flags are used across handling multiple interfaces
194 * for a single frame.
196 enum ieee80211_rx_flags {
197 IEEE80211_RX_CMNTR = BIT(0),
198 IEEE80211_RX_BEACON_REPORTED = BIT(1),
201 struct ieee80211_rx_data {
202 struct list_head *list;
204 struct ieee80211_local *local;
205 struct ieee80211_sub_if_data *sdata;
206 struct sta_info *sta;
207 struct ieee80211_key *key;
212 * Index into sequence numbers array, 0..16
213 * since the last (16) is used for non-QoS,
214 * will be 16 on non-QoS frames.
219 * Index into the security IV/PN arrays, 0..16
220 * since the last (16) is used for CCMP-encrypted
221 * management frames, will be set to 16 on mgmt
222 * frames and 0 on non-QoS frames.
232 u8 pn[IEEE80211_CCMP_PN_LEN];
237 struct ieee80211_csa_settings {
238 const u16 *counter_offsets_beacon;
239 const u16 *counter_offsets_presp;
241 int n_counter_offsets_beacon;
242 int n_counter_offsets_presp;
249 int head_len, tail_len;
250 struct ieee80211_meshconf_ie *meshconf;
251 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
252 u8 cntdwn_current_counter;
253 struct rcu_head rcu_head;
257 struct rcu_head rcu_head;
259 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
263 struct fils_discovery_data {
264 struct rcu_head rcu_head;
269 struct unsol_bcast_probe_resp_data {
270 struct rcu_head rcu_head;
276 /* yes, this looks ugly, but guarantees that we can later use
278 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
279 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
280 __aligned(__alignof__(unsigned long));
281 struct sk_buff_head bc_buf;
282 atomic_t num_sta_ps; /* number of stations in PS mode */
287 struct ieee80211_if_ap {
288 struct beacon_data __rcu *beacon;
289 struct probe_resp __rcu *probe_resp;
290 struct fils_discovery_data __rcu *fils_discovery;
291 struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp;
293 /* to be used after channel switch. */
294 struct cfg80211_beacon_data *next_beacon;
295 struct list_head vlans; /* write-protected with RTNL and local->mtx */
298 atomic_t num_mcast_sta; /* number of stations receiving multicast */
300 bool multicast_to_unicast;
303 struct ieee80211_if_vlan {
304 struct list_head list; /* write-protected with RTNL and local->mtx */
306 /* used for all tx if the VLAN is configured to 4-addr mode */
307 struct sta_info __rcu *sta;
308 atomic_t num_mcast_sta; /* number of stations receiving multicast */
312 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
313 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
314 __u32 fwded_frames; /* Mesh total forwarded frames */
315 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
316 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
317 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
320 #define PREQ_Q_F_START 0x1
321 #define PREQ_Q_F_REFRESH 0x2
322 struct mesh_preq_queue {
323 struct list_head list;
328 struct ieee80211_roc_work {
329 struct list_head list;
331 struct ieee80211_sub_if_data *sdata;
333 struct ieee80211_channel *chan;
335 bool started, abort, hw_begun, notified;
338 unsigned long 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),
361 IEEE80211_STA_DISABLE_HE = BIT(16),
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];
374 bool timeout_started;
376 u16 sae_trans, sae_status;
381 struct ieee80211_mgd_assoc_data {
382 struct cfg80211_bss *bss;
383 const u8 *supp_rates;
385 unsigned long timeout;
389 u8 prev_bssid[ETH_ALEN];
390 u8 ssid[IEEE80211_MAX_SSID_LEN];
396 bool timeout_started;
400 struct ieee80211_vht_cap ap_vht_cap;
402 u8 fils_nonces[2 * FILS_NONCE_LEN];
403 u8 fils_kek[FILS_MAX_KEK_LEN];
410 struct ieee80211_sta_tx_tspec {
411 /* timestamp of the first packet in the time slice */
412 unsigned long time_slice_start;
414 u32 admitted_time; /* in usecs, unlike over the air */
416 s8 up; /* signed to be able to invalidate with -1 during teardown */
418 /* consumed TX time in microseconds in the time slice */
419 u32 consumed_tx_time;
421 TX_TSPEC_ACTION_NONE = 0,
422 TX_TSPEC_ACTION_DOWNGRADE,
423 TX_TSPEC_ACTION_STOP_DOWNGRADE,
428 DECLARE_EWMA(beacon_signal, 4, 4)
430 struct ieee80211_if_managed {
431 struct timer_list timer;
432 struct timer_list conn_mon_timer;
433 struct timer_list bcn_mon_timer;
434 struct timer_list chswitch_timer;
435 struct work_struct monitor_work;
436 struct work_struct chswitch_work;
437 struct work_struct beacon_connection_loss_work;
438 struct work_struct csa_connection_drop_work;
440 unsigned long beacon_timeout;
441 unsigned long probe_timeout;
442 int probe_send_count;
443 bool nullfunc_failed;
444 u8 connection_loss:1,
448 struct cfg80211_bss *associated;
449 struct ieee80211_mgd_auth_data *auth_data;
450 struct ieee80211_mgd_assoc_data *assoc_data;
452 u8 bssid[ETH_ALEN] __aligned(2);
454 bool powersave; /* powersave requested for this iface */
455 bool broken_ap; /* AP is broken -- turn off powersave */
458 enum ieee80211_smps_mode req_smps, /* requested smps mode */
459 driver_smps_mode; /* smps mode request */
461 struct work_struct request_smps_work;
465 bool csa_waiting_bcn;
466 bool csa_ignored_same_chan;
468 bool beacon_crc_valid;
472 bool status_received;
476 IEEE80211_MFP_DISABLED,
477 IEEE80211_MFP_OPTIONAL,
478 IEEE80211_MFP_REQUIRED
479 } mfp; /* management frame protection */
482 * Bitmask of enabled u-apsd queues,
483 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
486 unsigned int uapsd_queues;
489 * Maximum number of buffered frames AP can deliver during a
490 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
491 * Needs a new association to take effect.
493 unsigned int uapsd_max_sp_len;
495 int wmm_last_param_set;
496 int mu_edca_last_param_set;
502 struct ewma_beacon_signal ave_beacon_signal;
505 * Number of Beacon frames used in ave_beacon_signal. This can be used
506 * to avoid generating less reliable cqm events that would be based
507 * only on couple of received frames.
509 unsigned int count_beacon_signal;
511 /* Number of times beacon loss was invoked. */
512 unsigned int beacon_loss_count;
515 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
516 * that triggered a cqm event. 0 indicates that no event has been
517 * generated for the current association.
519 int last_cqm_event_signal;
522 * State variables for keeping track of RSSI of the AP currently
523 * connected to and informing driver when RSSI has gone
524 * below/above a certain threshold.
526 int rssi_min_thold, rssi_max_thold;
527 int last_ave_beacon_signal;
529 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
530 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
531 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
532 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
533 struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */
534 struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */
537 u8 tdls_peer[ETH_ALEN] __aligned(2);
538 struct delayed_work tdls_peer_del_work;
539 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
540 struct sk_buff *teardown_skb; /* A copy to send through the AP */
541 spinlock_t teardown_lock; /* To lock changing teardown_skb */
542 bool tdls_chan_switch_prohibited;
543 bool tdls_wider_bw_prohibited;
545 /* WMM-AC TSPEC support */
546 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
547 /* Use a separate work struct so that we can do something here
548 * while the sdata->work is flushing the queues, for example.
549 * otherwise, in scenarios where we hardly get any traffic out
550 * on the BE queue, but there's a lot of VO traffic, we might
551 * get stuck in a downgraded situation and flush takes forever.
553 struct delayed_work tx_tspec_wk;
555 /* Information elements from the last transmitted (Re)Association
559 size_t assoc_req_ies_len;
562 struct ieee80211_if_ibss {
563 struct timer_list timer;
564 struct work_struct csa_connection_drop_work;
566 unsigned long last_scan_completed;
575 bool userspace_handles_dfs;
577 u8 bssid[ETH_ALEN] __aligned(2);
578 u8 ssid[IEEE80211_MAX_SSID_LEN];
581 struct cfg80211_chan_def chandef;
583 unsigned long ibss_join_req;
584 /* probe response/beacon for IBSS */
585 struct beacon_data __rcu *presp;
587 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
588 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
590 spinlock_t incomplete_lock;
591 struct list_head incomplete_stations;
594 IEEE80211_IBSS_MLME_SEARCH,
595 IEEE80211_IBSS_MLME_JOINED,
600 * struct ieee80211_if_ocb - OCB mode state
602 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
603 * @wrkq_flags: OCB deferred task action
604 * @incomplete_lock: delayed STA insertion lock
605 * @incomplete_stations: list of STAs waiting for delayed insertion
606 * @joined: indication if the interface is connected to an OCB network
608 struct ieee80211_if_ocb {
609 struct timer_list housekeeping_timer;
610 unsigned long wrkq_flags;
612 spinlock_t incomplete_lock;
613 struct list_head incomplete_stations;
619 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
621 * these declarations define the interface, which enables
622 * vendor-specific mesh synchronization
625 struct ieee802_11_elems;
626 struct ieee80211_mesh_sync_ops {
627 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
629 struct ieee80211_mgmt *mgmt,
630 struct ieee802_11_elems *elems,
631 struct ieee80211_rx_status *rx_status);
633 /* should be called with beacon_data under RCU read lock */
634 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata,
635 struct beacon_data *beacon);
636 /* add other framework functions here */
639 struct mesh_csa_settings {
640 struct rcu_head rcu_head;
641 struct cfg80211_csa_settings settings;
644 struct ieee80211_if_mesh {
645 struct timer_list housekeeping_timer;
646 struct timer_list mesh_path_timer;
647 struct timer_list mesh_path_root_timer;
649 unsigned long wrkq_flags;
650 unsigned long mbss_changed;
652 bool userspace_handles_dfs;
654 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
656 /* Active Path Selection Protocol Identifier */
658 /* Active Path Selection Metric Identifier */
660 /* Congestion Control Mode Identifier */
662 /* Synchronization Protocol Identifier */
664 /* Authentication Protocol Identifier */
666 /* Local mesh Sequence Number */
668 /* Last used PREQ ID */
671 /* Timestamp of last SN update */
672 unsigned long last_sn_update;
673 /* Time when it's ok to send next PERR */
674 unsigned long next_perr;
675 /* Timestamp of last PREQ sent */
676 unsigned long last_preq;
677 struct mesh_rmc *rmc;
678 spinlock_t mesh_preq_queue_lock;
679 struct mesh_preq_queue preq_queue;
681 struct mesh_stats mshstats;
682 struct mesh_config mshcfg;
683 atomic_t estab_plinks;
685 bool accepting_plinks;
687 struct beacon_data __rcu *beacon;
691 IEEE80211_MESH_SEC_NONE = 0x0,
692 IEEE80211_MESH_SEC_AUTHED = 0x1,
693 IEEE80211_MESH_SEC_SECURED = 0x2,
696 /* Extensible Synchronization Framework */
697 const struct ieee80211_mesh_sync_ops *sync_ops;
698 s64 sync_offset_clockdrift_max;
699 spinlock_t sync_offset_lock;
700 /* mesh power save */
701 enum nl80211_mesh_power_mode nonpeer_pm;
702 int ps_peers_light_sleep;
703 int ps_peers_deep_sleep;
705 /* Channel Switching Support */
706 struct mesh_csa_settings __rcu *csa;
708 IEEE80211_MESH_CSA_ROLE_NONE,
709 IEEE80211_MESH_CSA_ROLE_INIT,
710 IEEE80211_MESH_CSA_ROLE_REPEATER,
715 /* offset from skb->data while building IE */
718 struct mesh_table *mesh_paths;
719 struct mesh_table *mpp_paths; /* Store paths for MPP&MAP */
720 int mesh_paths_generation;
721 int mpp_paths_generation;
724 #ifdef CONFIG_MAC80211_MESH
725 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
726 do { (msh)->mshstats.name++; } while (0)
728 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
733 * enum ieee80211_sub_if_data_flags - virtual interface flags
735 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
736 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
737 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
738 * associated stations and deliver multicast frames both
739 * back to wireless media and to the local net stack.
740 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
741 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
743 enum ieee80211_sub_if_data_flags {
744 IEEE80211_SDATA_ALLMULTI = BIT(0),
745 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
746 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
747 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
748 IEEE80211_SDATA_IN_DRIVER = BIT(5),
752 * enum ieee80211_sdata_state_bits - virtual interface state bits
753 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
754 * mirrors netif_running() but is separate for interface type
755 * change handling while the interface is up
756 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
757 * mode, so queues are stopped
758 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
759 * to offchannel, reset when offchannel returns
761 enum ieee80211_sdata_state_bits {
763 SDATA_STATE_OFFCHANNEL,
764 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
768 * enum ieee80211_chanctx_mode - channel context configuration mode
770 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
771 * multiple interfaces
772 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
773 * only by a single interface. This can be used for example for
774 * non-fixed channel IBSS.
776 enum ieee80211_chanctx_mode {
777 IEEE80211_CHANCTX_SHARED,
778 IEEE80211_CHANCTX_EXCLUSIVE
782 * enum ieee80211_chanctx_replace_state - channel context replacement state
784 * This is used for channel context in-place reservations that require channel
785 * context switch/swap.
787 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
788 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
789 * by a (not yet registered) channel context pointed by %replace_ctx.
790 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
791 * replaces an existing channel context pointed to by %replace_ctx.
793 enum ieee80211_chanctx_replace_state {
794 IEEE80211_CHANCTX_REPLACE_NONE,
795 IEEE80211_CHANCTX_WILL_BE_REPLACED,
796 IEEE80211_CHANCTX_REPLACES_OTHER,
799 struct ieee80211_chanctx {
800 struct list_head list;
801 struct rcu_head rcu_head;
803 struct list_head assigned_vifs;
804 struct list_head reserved_vifs;
806 enum ieee80211_chanctx_replace_state replace_state;
807 struct ieee80211_chanctx *replace_ctx;
809 enum ieee80211_chanctx_mode mode;
812 struct ieee80211_chanctx_conf conf;
815 struct mac80211_qos_map {
816 struct cfg80211_qos_map qos_map;
817 struct rcu_head rcu_head;
820 enum txq_info_flags {
823 IEEE80211_TXQ_NO_AMSDU,
824 IEEE80211_TXQ_STOP_NETIF_TX,
828 * struct txq_info - per tid queue
830 * @tin: contains packets split into multiple flows
831 * @def_flow: used as a fallback flow when a packet destined to @tin hashes to
832 * a fq_flow which is already owned by a different tin
833 * @def_cvars: codel vars for @def_flow
834 * @frags: used to keep fragments created after dequeue
835 * @schedule_order: used with ieee80211_local->active_txqs
836 * @schedule_round: counter to prevent infinite loops on TXQ scheduling
840 struct codel_vars def_cvars;
841 struct codel_stats cstats;
842 struct sk_buff_head frags;
843 struct list_head schedule_order;
848 struct ieee80211_txq txq;
851 struct ieee80211_if_mntr {
853 u8 mu_follow_addr[ETH_ALEN] __aligned(2);
855 struct list_head list;
859 * struct ieee80211_if_nan - NAN state
861 * @conf: current NAN configuration
862 * @func_ids: a bitmap of available instance_id's
864 struct ieee80211_if_nan {
865 struct cfg80211_nan_conf conf;
867 /* protects function_inst_ids */
868 spinlock_t func_lock;
869 struct idr function_inst_ids;
872 struct ieee80211_sub_if_data {
873 struct list_head list;
875 struct wireless_dev wdev;
878 struct list_head key_list;
880 /* count for keys needing tailroom space allocation */
881 int crypto_tx_tailroom_needed_cnt;
882 int crypto_tx_tailroom_pending_dec;
883 struct delayed_work dec_tailroom_needed_wk;
885 struct net_device *dev;
886 struct ieee80211_local *local;
894 struct ieee80211_fragment_cache frags;
896 /* TID bitmap for NoAck policy */
899 /* bit field of ACM bits (BIT(802.1D tag)) */
902 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS +
903 NUM_DEFAULT_MGMT_KEYS +
904 NUM_DEFAULT_BEACON_KEYS];
905 struct ieee80211_key __rcu *default_unicast_key;
906 struct ieee80211_key __rcu *default_multicast_key;
907 struct ieee80211_key __rcu *default_mgmt_key;
908 struct ieee80211_key __rcu *default_beacon_key;
911 __be16 control_port_protocol;
912 bool control_port_no_encrypt;
913 bool control_port_no_preauth;
914 bool control_port_over_nl80211;
915 int encrypt_headroom;
917 atomic_t num_tx_queued;
918 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
919 struct mac80211_qos_map __rcu *qos_map;
921 struct work_struct csa_finalize_work;
922 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
923 struct cfg80211_chan_def csa_chandef;
925 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
926 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
928 /* context reservation -- protected with chanctx_mtx */
929 struct ieee80211_chanctx *reserved_chanctx;
930 struct cfg80211_chan_def reserved_chandef;
931 bool reserved_radar_required;
934 /* used to reconfigure hardware SM PS */
935 struct work_struct recalc_smps;
937 struct work_struct work;
938 struct sk_buff_head skb_queue;
941 enum ieee80211_smps_mode smps_mode;
943 int user_power_level; /* in dBm */
944 int ap_power_level; /* in dBm */
947 struct delayed_work dfs_cac_timer_work;
950 * AP this belongs to: self in AP mode and
951 * corresponding AP in VLAN mode, NULL for
952 * all others (might be needed later in IBSS)
954 struct ieee80211_if_ap *bss;
956 /* bitmap of allowed (non-MCS) rate indexes for rate control */
957 u32 rc_rateidx_mask[NUM_NL80211_BANDS];
959 bool rc_has_mcs_mask[NUM_NL80211_BANDS];
960 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
962 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
963 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
965 /* Beacon frame (non-MCS) rate (as a bitmap) */
966 u32 beacon_rateidx_mask[NUM_NL80211_BANDS];
967 bool beacon_rate_set;
970 struct ieee80211_if_ap ap;
971 struct ieee80211_if_vlan vlan;
972 struct ieee80211_if_managed mgd;
973 struct ieee80211_if_ibss ibss;
974 struct ieee80211_if_mesh mesh;
975 struct ieee80211_if_ocb ocb;
976 struct ieee80211_if_mntr mntr;
977 struct ieee80211_if_nan nan;
980 #ifdef CONFIG_MAC80211_DEBUGFS
982 struct dentry *subdir_stations;
983 struct dentry *default_unicast_key;
984 struct dentry *default_multicast_key;
985 struct dentry *default_mgmt_key;
986 struct dentry *default_beacon_key;
990 /* must be last, dynamically sized area in this! */
991 struct ieee80211_vif vif;
995 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
997 return container_of(p, struct ieee80211_sub_if_data, vif);
1000 static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
1001 __acquires(&sdata->wdev.mtx)
1003 mutex_lock(&sdata->wdev.mtx);
1004 __acquire(&sdata->wdev.mtx);
1007 static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
1008 __releases(&sdata->wdev.mtx)
1010 mutex_unlock(&sdata->wdev.mtx);
1011 __release(&sdata->wdev.mtx);
1014 #define sdata_dereference(p, sdata) \
1015 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
1018 sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
1020 lockdep_assert_held(&sdata->wdev.mtx);
1024 ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
1026 switch (chandef->width) {
1027 case NL80211_CHAN_WIDTH_5:
1029 case NL80211_CHAN_WIDTH_10:
1037 ieee80211_vif_get_shift(struct ieee80211_vif *vif)
1039 struct ieee80211_chanctx_conf *chanctx_conf;
1043 chanctx_conf = rcu_dereference(vif->chanctx_conf);
1045 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
1052 IEEE80211_RX_MSG = 1,
1053 IEEE80211_TX_STATUS_MSG = 2,
1056 enum queue_stop_reason {
1057 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1058 IEEE80211_QUEUE_STOP_REASON_PS,
1059 IEEE80211_QUEUE_STOP_REASON_CSA,
1060 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1061 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1062 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1063 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1064 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1065 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1066 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1067 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE,
1069 IEEE80211_QUEUE_STOP_REASONS,
1072 #ifdef CONFIG_MAC80211_LEDS
1073 struct tpt_led_trigger {
1075 const struct ieee80211_tpt_blink *blink_table;
1076 unsigned int blink_table_len;
1077 struct timer_list timer;
1078 struct ieee80211_local *local;
1079 unsigned long prev_traffic;
1080 unsigned long tx_bytes, rx_bytes;
1081 unsigned int active, want;
1087 * mac80211 scan flags - currently active scan mode
1089 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1090 * well be on the operating channel
1091 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1092 * determine if we are on the operating channel or not
1093 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1094 * channel. This should not interrupt normal traffic.
1095 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1096 * that the scan completed.
1097 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1098 * a scan complete for an aborted scan.
1099 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1105 SCAN_ONCHANNEL_SCANNING,
1112 * enum mac80211_scan_state - scan state machine states
1114 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1115 * determines if we should keep on scanning or switch back to the
1117 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1118 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1119 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1121 * @SCAN_RESUME: Resume the scan and scan the next channel
1122 * @SCAN_ABORT: Abort the scan and go back to operating channel
1124 enum mac80211_scan_state {
1133 DECLARE_STATIC_KEY_FALSE(aql_disable);
1135 struct ieee80211_local {
1136 /* embed the driver visible part.
1137 * don't cast (use the static inlines below), but we keep
1138 * it first anyway so they become a no-op */
1139 struct ieee80211_hw hw;
1142 struct codel_vars *cvars;
1143 struct codel_params cparams;
1145 /* protects active_txqs and txqi->schedule_order */
1146 spinlock_t active_txq_lock[IEEE80211_NUM_ACS];
1147 struct list_head active_txqs[IEEE80211_NUM_ACS];
1148 u16 schedule_round[IEEE80211_NUM_ACS];
1151 u32 aql_txq_limit_low[IEEE80211_NUM_ACS];
1152 u32 aql_txq_limit_high[IEEE80211_NUM_ACS];
1154 atomic_t aql_total_pending_airtime;
1156 const struct ieee80211_ops *ops;
1159 * private workqueue to mac80211. mac80211 makes this accessible
1160 * via ieee80211_queue_work()
1162 struct workqueue_struct *workqueue;
1164 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1165 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1166 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1167 spinlock_t queue_stop_reason_lock;
1170 int monitors, cooked_mntrs;
1171 /* number of interfaces with corresponding FIF_ flags */
1172 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1175 bool rx_mcast_action_reg;
1176 unsigned int filter_flags; /* FIF_* */
1178 bool wiphy_ciphers_allocated;
1182 /* protects the aggregated multicast list and filter calls */
1183 spinlock_t filter_lock;
1185 /* used for uploading changed mc list */
1186 struct work_struct reconfig_filter;
1188 /* aggregated multicast list */
1189 struct netdev_hw_addr_list mc_list;
1191 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1194 * suspended is true if we finished all the suspend _and_ we have
1195 * not yet come up from resume. This is to be used by mac80211
1196 * to ensure driver sanity during suspend and mac80211's own
1197 * sanity. It can eventually be used for WoW as well.
1202 * Resuming is true while suspended, but when we're reprogramming the
1203 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1204 * again even though some other parts of the stack are still suspended
1205 * and we still drop received frames to avoid waking the stack.
1210 * quiescing is true during the suspend process _only_ to
1211 * ease timer cancelling etc.
1215 /* device is started */
1218 /* device is during a HW reconfig */
1221 /* wowlan is enabled -- don't reconfig on resume */
1224 struct work_struct radar_detected_work;
1226 /* number of RX chains the hardware has */
1229 /* bitmap of which sbands were copied */
1232 int tx_headroom; /* required headroom for hardware/radiotap */
1234 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1235 * added to skb_queue will be processed, but frames in
1236 * skb_queue_unreliable may be dropped if the total length of these
1237 * queues increases over the limit. */
1238 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1239 struct tasklet_struct tasklet;
1240 struct sk_buff_head skb_queue;
1241 struct sk_buff_head skb_queue_unreliable;
1243 spinlock_t rx_path_lock;
1247 * The mutex only protects the list, hash table and
1248 * counter, reads are done with RCU.
1250 struct mutex sta_mtx;
1251 spinlock_t tim_lock;
1252 unsigned long num_sta;
1253 struct list_head sta_list;
1254 struct rhltable sta_hash;
1255 struct timer_list sta_cleanup;
1258 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1259 struct tasklet_struct tx_pending_tasklet;
1260 struct tasklet_struct wake_txqs_tasklet;
1262 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1264 /* number of interfaces with allmulti RX */
1265 atomic_t iff_allmultis;
1267 struct rate_control_ref *rate_ctrl;
1269 struct arc4_ctx wep_tx_ctx;
1270 struct arc4_ctx wep_rx_ctx;
1274 struct list_head interfaces;
1275 struct list_head mon_list; /* only that are IFF_UP && !cooked */
1276 struct mutex iflist_mtx;
1279 * Key mutex, protects sdata's key_list and sta_info's
1280 * key pointers and ptk_idx (write access, they're RCU.)
1282 struct mutex key_mtx;
1284 /* mutex for scan and work locking */
1287 /* Scanning and BSS list */
1288 unsigned long scanning;
1289 struct cfg80211_ssid scan_ssid;
1290 struct cfg80211_scan_request *int_scan_req;
1291 struct cfg80211_scan_request __rcu *scan_req;
1292 struct ieee80211_scan_request *hw_scan_req;
1293 struct cfg80211_chan_def scan_chandef;
1294 enum nl80211_band hw_scan_band;
1295 int scan_channel_idx;
1297 int hw_scan_ies_bufsize;
1298 struct cfg80211_scan_info scan_info;
1300 struct work_struct sched_scan_stopped_work;
1301 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1302 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1303 u8 scan_addr[ETH_ALEN];
1305 unsigned long leave_oper_channel_time;
1306 enum mac80211_scan_state next_scan_state;
1307 struct delayed_work scan_work;
1308 struct ieee80211_sub_if_data __rcu *scan_sdata;
1309 /* For backward compatibility only -- do not use */
1310 struct cfg80211_chan_def _oper_chandef;
1312 /* Temporary remain-on-channel for off-channel operations */
1313 struct ieee80211_channel *tmp_channel;
1315 /* channel contexts */
1316 struct list_head chanctx_list;
1317 struct mutex chanctx_mtx;
1319 #ifdef CONFIG_MAC80211_LEDS
1320 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1321 struct led_trigger tpt_led;
1322 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1323 atomic_t radio_led_active, tpt_led_active;
1324 struct tpt_led_trigger *tpt_led_trigger;
1327 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1329 /* dot11CountersTable */
1330 u32 dot11TransmittedFragmentCount;
1331 u32 dot11MulticastTransmittedFrameCount;
1332 u32 dot11FailedCount;
1333 u32 dot11RetryCount;
1334 u32 dot11MultipleRetryCount;
1335 u32 dot11FrameDuplicateCount;
1336 u32 dot11ReceivedFragmentCount;
1337 u32 dot11MulticastReceivedFrameCount;
1338 u32 dot11TransmittedFrameCount;
1340 /* TX/RX handler statistics */
1341 unsigned int tx_handlers_drop;
1342 unsigned int tx_handlers_queued;
1343 unsigned int tx_handlers_drop_wep;
1344 unsigned int tx_handlers_drop_not_assoc;
1345 unsigned int tx_handlers_drop_unauth_port;
1346 unsigned int rx_handlers_drop;
1347 unsigned int rx_handlers_queued;
1348 unsigned int rx_handlers_drop_nullfunc;
1349 unsigned int rx_handlers_drop_defrag;
1350 unsigned int tx_expand_skb_head;
1351 unsigned int tx_expand_skb_head_cloned;
1352 unsigned int rx_expand_skb_head_defrag;
1353 unsigned int rx_handlers_fragments;
1354 unsigned int tx_status_drop;
1355 #define I802_DEBUG_INC(c) (c)++
1356 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1357 #define I802_DEBUG_INC(c) do { } while (0)
1358 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1361 int total_ps_buffered; /* total number of all buffered unicast and
1362 * multicast packets for power saving stations
1367 * PS can only be enabled when we have exactly one managed
1368 * interface (and monitors) in PS, this then points there.
1370 struct ieee80211_sub_if_data *ps_sdata;
1371 struct work_struct dynamic_ps_enable_work;
1372 struct work_struct dynamic_ps_disable_work;
1373 struct timer_list dynamic_ps_timer;
1374 struct notifier_block ifa_notifier;
1375 struct notifier_block ifa6_notifier;
1378 * The dynamic ps timeout configured from user space via WEXT -
1379 * this will override whatever chosen by mac80211 internally.
1381 int dynamic_ps_forced_timeout;
1383 int user_power_level; /* in dBm, for all interfaces */
1385 enum ieee80211_smps_mode smps_mode;
1387 struct work_struct restart_work;
1389 #ifdef CONFIG_MAC80211_DEBUGFS
1390 struct local_debugfsdentries {
1391 struct dentry *rcdir;
1392 struct dentry *keys;
1394 bool force_tx_status;
1398 * Remain-on-channel support
1400 struct delayed_work roc_work;
1401 struct list_head roc_list;
1402 struct work_struct hw_roc_start, hw_roc_done;
1403 unsigned long hw_roc_start_time;
1404 u64 roc_cookie_counter;
1406 struct idr ack_status_frames;
1407 spinlock_t ack_status_lock;
1409 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1411 /* virtual monitor interface */
1412 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1413 struct cfg80211_chan_def monitor_chandef;
1415 /* extended capabilities provided by mac80211 */
1418 /* TDLS channel switch */
1419 struct work_struct tdls_chsw_work;
1420 struct sk_buff_head skb_queue_tdls_chsw;
1423 static inline struct ieee80211_sub_if_data *
1424 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1426 return netdev_priv(dev);
1429 static inline struct ieee80211_sub_if_data *
1430 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1432 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1435 static inline struct ieee80211_supported_band *
1436 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata)
1438 struct ieee80211_local *local = sdata->local;
1439 struct ieee80211_chanctx_conf *chanctx_conf;
1440 enum nl80211_band band;
1443 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1445 if (!chanctx_conf) {
1450 band = chanctx_conf->def.chan->band;
1453 return local->hw.wiphy->bands[band];
1456 /* this struct holds the value parsing from channel switch IE */
1457 struct ieee80211_csa_ie {
1458 struct cfg80211_chan_def chandef;
1464 u32 max_switch_time;
1467 /* Parsed Information Elements */
1468 struct ieee802_11_elems {
1472 /* pointers to IEs */
1473 const struct ieee80211_tdls_lnkie *lnk_id;
1474 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1475 const u8 *ext_capab;
1477 const u8 *supp_rates;
1478 const u8 *ds_params;
1479 const struct ieee80211_tim_ie *tim;
1480 const u8 *challenge;
1484 const u8 *ext_supp_rates;
1486 const u8 *wmm_param;
1487 const struct ieee80211_ht_cap *ht_cap_elem;
1488 const struct ieee80211_ht_operation *ht_operation;
1489 const struct ieee80211_vht_cap *vht_cap_elem;
1490 const struct ieee80211_vht_operation *vht_operation;
1491 const struct ieee80211_meshconf_ie *mesh_config;
1493 const struct ieee80211_he_operation *he_operation;
1494 const struct ieee80211_he_spr *he_spr;
1495 const struct ieee80211_mu_edca_param_set *mu_edca_param_set;
1496 const struct ieee80211_he_6ghz_capa *he_6ghz_capa;
1497 const u8 *uora_element;
1500 const __le16 *awake_window;
1504 const struct ieee80211_rann_ie *rann;
1505 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1506 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1507 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1508 const u8 *max_channel_switch_time;
1509 const u8 *country_elem;
1510 const u8 *pwr_constr_elem;
1511 const u8 *cisco_dtpc_elem;
1512 const struct ieee80211_timeout_interval_ie *timeout_int;
1513 const u8 *opmode_notif;
1514 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1515 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1516 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie;
1517 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie;
1518 const struct ieee80211_bssid_index *bssid_index;
1519 u8 max_bssid_indicator;
1522 const struct ieee80211_addba_ext_ie *addba_ext_ie;
1523 const struct ieee80211_s1g_cap *s1g_capab;
1524 const struct ieee80211_s1g_oper_ie *s1g_oper;
1525 const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat;
1526 const struct ieee80211_aid_response_ie *aid_resp;
1528 /* length of them, respectively */
1536 u8 ext_supp_rates_len;
1545 u8 country_elem_len;
1548 /* whether a parse error occurred while retrieving these elements */
1552 static inline struct ieee80211_local *hw_to_local(
1553 struct ieee80211_hw *hw)
1555 return container_of(hw, struct ieee80211_local, hw);
1558 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1560 return container_of(txq, struct txq_info, txq);
1563 static inline bool txq_has_queue(struct ieee80211_txq *txq)
1565 struct txq_info *txqi = to_txq_info(txq);
1567 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets);
1570 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1572 return ether_addr_equal(raddr, addr) ||
1573 is_broadcast_ether_addr(raddr);
1577 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1579 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1580 status->flag & RX_FLAG_MACTIME_END);
1581 return !!(status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END |
1582 RX_FLAG_MACTIME_PLCP_START));
1585 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
1586 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
1588 /* This function returns the number of multicast stations connected to this
1589 * interface. It returns -1 if that number is not tracked, that is for netdevs
1590 * not in AP or AP_VLAN mode or when using 4addr.
1593 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
1595 if (sdata->vif.type == NL80211_IFTYPE_AP)
1596 return atomic_read(&sdata->u.ap.num_mcast_sta);
1597 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
1598 return atomic_read(&sdata->u.vlan.num_mcast_sta);
1602 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1603 struct ieee80211_rx_status *status,
1604 unsigned int mpdu_len,
1605 unsigned int mpdu_offset);
1606 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1607 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1608 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1610 void ieee80211_configure_filter(struct ieee80211_local *local);
1611 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1613 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
1614 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1615 u64 *cookie, gfp_t gfp);
1617 void ieee80211_check_fast_rx(struct sta_info *sta);
1618 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1619 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1620 void ieee80211_clear_fast_rx(struct sta_info *sta);
1623 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1624 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1625 struct cfg80211_auth_request *req);
1626 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1627 struct cfg80211_assoc_request *req);
1628 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1629 struct cfg80211_deauth_request *req);
1630 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1631 struct cfg80211_disassoc_request *req);
1632 void ieee80211_send_pspoll(struct ieee80211_local *local,
1633 struct ieee80211_sub_if_data *sdata);
1634 void ieee80211_recalc_ps(struct ieee80211_local *local);
1635 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1636 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1637 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1638 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1639 struct sk_buff *skb);
1640 void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata,
1641 struct sk_buff *skb);
1642 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1643 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1644 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1645 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1646 __le16 fc, bool acked);
1647 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1648 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1649 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1650 void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
1651 u8 *bssid, u8 reason, bool tx);
1654 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1655 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1656 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1657 const u8 *bssid, const u8 *addr, u32 supp_rates);
1658 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1659 struct cfg80211_ibss_params *params);
1660 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1661 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1662 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1663 struct sk_buff *skb);
1664 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1665 struct cfg80211_csa_settings *csa_settings);
1666 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
1667 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1670 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1671 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1672 const u8 *bssid, const u8 *addr, u32 supp_rates);
1673 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1674 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1675 struct ocb_setup *setup);
1676 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1679 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1680 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1681 struct sk_buff *skb);
1682 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1683 struct cfg80211_csa_settings *csa_settings);
1684 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
1686 /* scan/BSS handling */
1687 void ieee80211_scan_work(struct work_struct *work);
1688 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1689 const u8 *ssid, u8 ssid_len,
1690 struct ieee80211_channel **channels,
1691 unsigned int n_channels,
1692 enum nl80211_bss_scan_width scan_width);
1693 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1694 struct cfg80211_scan_request *req);
1695 void ieee80211_scan_cancel(struct ieee80211_local *local);
1696 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1697 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1699 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1700 struct ieee80211_bss *
1701 ieee80211_bss_info_update(struct ieee80211_local *local,
1702 struct ieee80211_rx_status *rx_status,
1703 struct ieee80211_mgmt *mgmt,
1705 struct ieee80211_channel *channel);
1706 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1707 struct ieee80211_bss *bss);
1709 /* scheduled scan handling */
1711 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1712 struct cfg80211_sched_scan_request *req);
1713 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1714 struct cfg80211_sched_scan_request *req);
1715 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
1716 void ieee80211_sched_scan_end(struct ieee80211_local *local);
1717 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1719 /* off-channel/mgmt-tx */
1720 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1721 void ieee80211_offchannel_return(struct ieee80211_local *local);
1722 void ieee80211_roc_setup(struct ieee80211_local *local);
1723 void ieee80211_start_next_roc(struct ieee80211_local *local);
1724 void ieee80211_roc_purge(struct ieee80211_local *local,
1725 struct ieee80211_sub_if_data *sdata);
1726 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
1727 struct ieee80211_channel *chan,
1728 unsigned int duration, u64 *cookie);
1729 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1730 struct wireless_dev *wdev, u64 cookie);
1731 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
1732 struct cfg80211_mgmt_tx_params *params, u64 *cookie);
1733 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1734 struct wireless_dev *wdev, u64 cookie);
1736 /* channel switch handling */
1737 void ieee80211_csa_finalize_work(struct work_struct *work);
1738 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1739 struct cfg80211_csa_settings *params);
1741 /* interface handling */
1742 #define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
1743 NETIF_F_HW_CSUM | NETIF_F_SG | \
1744 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE)
1745 #define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM)
1746 #define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \
1747 MAC80211_SUPPORTED_FEATURES_RX)
1749 int ieee80211_iface_init(void);
1750 void ieee80211_iface_exit(void);
1751 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1752 unsigned char name_assign_type,
1753 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1754 struct vif_params *params);
1755 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1756 enum nl80211_iftype type);
1757 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1758 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1759 u32 ieee80211_idle_off(struct ieee80211_local *local);
1760 void ieee80211_recalc_idle(struct ieee80211_local *local);
1761 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1763 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1764 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
1765 int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1766 void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
1768 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1769 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
1771 void ieee80211_recalc_offload(struct ieee80211_local *local);
1773 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1775 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1779 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1780 void ieee80211_tx_pending(struct tasklet_struct *t);
1781 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1782 struct net_device *dev);
1783 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1784 struct net_device *dev);
1785 netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb,
1786 struct net_device *dev);
1787 void __ieee80211_subif_start_xmit(struct sk_buff *skb,
1788 struct net_device *dev,
1792 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1793 struct sk_buff_head *skbs);
1795 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
1796 struct sk_buff *skb, u32 info_flags);
1797 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
1798 struct ieee80211_supported_band *sband,
1799 int retry_count, int shift, bool send_to_cooked,
1800 struct ieee80211_tx_status *status);
1802 void ieee80211_check_fast_xmit(struct sta_info *sta);
1803 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
1804 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
1805 void ieee80211_clear_fast_xmit(struct sta_info *sta);
1806 int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
1807 const u8 *buf, size_t len,
1808 const u8 *dest, __be16 proto, bool unencrypted,
1810 int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev,
1811 const u8 *buf, size_t len);
1814 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1815 struct ieee80211_sta_ht_cap *ht_cap);
1816 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1817 struct ieee80211_supported_band *sband,
1818 const struct ieee80211_ht_cap *ht_cap_ie,
1819 struct sta_info *sta);
1820 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1821 const u8 *da, u16 tid,
1822 u16 initiator, u16 reason_code);
1823 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1824 enum ieee80211_smps_mode smps, const u8 *da,
1826 void ieee80211_request_smps_ap_work(struct work_struct *work);
1827 void ieee80211_request_smps_mgd_work(struct work_struct *work);
1828 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
1829 enum ieee80211_smps_mode smps_mode_new);
1831 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1832 u16 initiator, u16 reason, bool stop);
1833 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1834 u16 initiator, u16 reason, bool stop);
1835 void ___ieee80211_start_rx_ba_session(struct sta_info *sta,
1836 u8 dialog_token, u16 timeout,
1837 u16 start_seq_num, u16 ba_policy, u16 tid,
1838 u16 buf_size, bool tx, bool auto_seq,
1839 const struct ieee80211_addba_ext_ie *addbaext);
1840 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1841 enum ieee80211_agg_stop_reason reason);
1842 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1843 struct sta_info *sta,
1844 struct ieee80211_mgmt *mgmt, size_t len);
1845 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1846 struct sta_info *sta,
1847 struct ieee80211_mgmt *mgmt,
1849 void ieee80211_process_addba_request(struct ieee80211_local *local,
1850 struct sta_info *sta,
1851 struct ieee80211_mgmt *mgmt,
1854 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1855 enum ieee80211_agg_stop_reason reason);
1856 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1857 enum ieee80211_agg_stop_reason reason);
1858 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid,
1859 struct tid_ampdu_tx *tid_tx);
1860 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
1861 struct tid_ampdu_tx *tid_tx);
1862 void ieee80211_ba_session_work(struct work_struct *work);
1863 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1864 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1866 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1867 enum nl80211_smps_mode
1868 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps);
1872 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1873 struct ieee80211_supported_band *sband,
1874 const struct ieee80211_vht_cap *vht_cap_ie,
1875 struct sta_info *sta);
1876 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta);
1877 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
1878 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
1879 enum ieee80211_sta_rx_bandwidth
1880 ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
1881 enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta);
1882 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
1883 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
1884 struct ieee80211_mgmt *mgmt);
1885 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1886 struct sta_info *sta, u8 opmode,
1887 enum nl80211_band band);
1888 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1889 struct sta_info *sta, u8 opmode,
1890 enum nl80211_band band);
1891 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
1892 struct ieee80211_sta_vht_cap *vht_cap);
1893 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
1894 u16 vht_mask[NL80211_VHT_NSS_MAX]);
1895 enum nl80211_chan_width
1896 ieee80211_sta_rx_bw_to_chan_width(struct sta_info *sta);
1900 ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
1901 struct ieee80211_supported_band *sband,
1902 const u8 *he_cap_ie, u8 he_cap_len,
1903 const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
1904 struct sta_info *sta);
1906 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif,
1907 const struct ieee80211_he_spr *he_spr_ie_elem);
1910 ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif,
1911 const struct ieee80211_he_operation *he_op_ie_elem);
1914 void ieee80211_s1g_sta_rate_init(struct sta_info *sta);
1916 /* Spectrum management */
1917 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1918 struct ieee80211_mgmt *mgmt,
1921 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
1922 * @sdata: the sdata of the interface which has received the frame
1923 * @elems: parsed 802.11 elements received with the frame
1924 * @current_band: indicates the current band
1925 * @vht_cap_info: VHT capabilities of the transmitter
1926 * @sta_flags: contains information about own capabilities and restrictions
1927 * to decide which channel switch announcements can be accepted. Only the
1928 * following subset of &enum ieee80211_sta_flags are evaluated:
1929 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
1930 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
1931 * %IEEE80211_STA_DISABLE_160MHZ.
1932 * @bssid: the currently connected bssid (for reporting)
1933 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
1934 All of them will be filled with if success only.
1935 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
1937 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
1938 struct ieee802_11_elems *elems,
1939 enum nl80211_band current_band,
1941 u32 sta_flags, u8 *bssid,
1942 struct ieee80211_csa_ie *csa_ie);
1944 /* Suspend/resume and hw reconfiguration */
1945 int ieee80211_reconfig(struct ieee80211_local *local);
1946 void ieee80211_stop_device(struct ieee80211_local *local);
1948 int __ieee80211_suspend(struct ieee80211_hw *hw,
1949 struct cfg80211_wowlan *wowlan);
1951 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1953 struct ieee80211_local *local = hw_to_local(hw);
1955 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
1956 !test_bit(SCAN_COMPLETED, &local->scanning),
1957 "%s: resume with hardware scan still in progress\n",
1958 wiphy_name(hw->wiphy));
1960 return ieee80211_reconfig(hw_to_local(hw));
1963 /* utility functions/constants */
1964 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
1965 int ieee80211_frame_duration(enum nl80211_band band, size_t len,
1966 int rate, int erp, int short_preamble,
1968 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
1969 struct ieee80211_tx_queue_params *qparam,
1971 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1972 bool bss_notify, bool enable_qos);
1973 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
1974 struct sta_info *sta, struct sk_buff *skb);
1976 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1977 struct sk_buff *skb, int tid,
1978 enum nl80211_band band);
1980 /* sta_out needs to be checked for ERR_PTR() before using */
1981 int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
1982 struct sk_buff *skb,
1983 struct sta_info **sta_out);
1986 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1987 struct sk_buff *skb, int tid,
1988 enum nl80211_band band)
1991 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1995 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1996 struct sk_buff *skb, int tid)
1998 struct ieee80211_chanctx_conf *chanctx_conf;
2001 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
2002 if (WARN_ON(!chanctx_conf)) {
2008 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
2009 chanctx_conf->def.chan->band);
2013 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
2014 struct sk_buff *skb)
2016 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
2017 ieee80211_tx_skb_tid(sdata, skb, 7);
2020 u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
2021 struct ieee802_11_elems *elems,
2022 u64 filter, u32 crc, u8 *transmitter_bssid,
2024 static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
2026 struct ieee802_11_elems *elems,
2027 u8 *transmitter_bssid,
2030 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0,
2031 transmitter_bssid, bss_bssid);
2035 extern const int ieee802_1d_to_ac[8];
2037 static inline int ieee80211_ac_from_tid(int tid)
2039 return ieee802_1d_to_ac[tid & 7];
2042 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
2043 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
2044 void ieee80211_dynamic_ps_timer(struct timer_list *t);
2045 void ieee80211_send_nullfunc(struct ieee80211_local *local,
2046 struct ieee80211_sub_if_data *sdata,
2048 void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local,
2049 struct ieee80211_sub_if_data *sdata);
2050 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
2051 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
2053 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
2054 unsigned long queues,
2055 enum queue_stop_reason reason,
2057 void ieee80211_stop_vif_queues(struct ieee80211_local *local,
2058 struct ieee80211_sub_if_data *sdata,
2059 enum queue_stop_reason reason);
2060 void ieee80211_wake_vif_queues(struct ieee80211_local *local,
2061 struct ieee80211_sub_if_data *sdata,
2062 enum queue_stop_reason reason);
2063 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
2064 unsigned long queues,
2065 enum queue_stop_reason reason,
2067 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
2068 enum queue_stop_reason reason,
2070 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
2071 enum queue_stop_reason reason,
2073 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
2074 void ieee80211_add_pending_skb(struct ieee80211_local *local,
2075 struct sk_buff *skb);
2076 void ieee80211_add_pending_skbs(struct ieee80211_local *local,
2077 struct sk_buff_head *skbs);
2078 void ieee80211_flush_queues(struct ieee80211_local *local,
2079 struct ieee80211_sub_if_data *sdata, bool drop);
2080 void __ieee80211_flush_queues(struct ieee80211_local *local,
2081 struct ieee80211_sub_if_data *sdata,
2082 unsigned int queues, bool drop);
2084 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
2087 * It's unsafe to try to do any work during reconfigure flow.
2088 * When the flow ends the work will be requeued.
2090 if (local->in_reconfig)
2094 * If quiescing is set, we are racing with __ieee80211_suspend.
2095 * __ieee80211_suspend flushes the workers after setting quiescing,
2096 * and we check quiescing / suspended before enqueing new workers.
2097 * We should abort the worker to avoid the races below.
2099 if (local->quiescing)
2103 * We might already be suspended if the following scenario occurs:
2104 * __ieee80211_suspend Control path
2106 * if (local->quiescing)
2108 * local->quiescing = true;
2109 * flush_workqueue();
2111 * local->suspended = true;
2112 * local->quiescing = false;
2113 * worker starts running...
2115 if (local->suspended)
2121 int ieee80211_txq_setup_flows(struct ieee80211_local *local);
2122 void ieee80211_txq_set_params(struct ieee80211_local *local);
2123 void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
2124 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
2125 struct sta_info *sta,
2126 struct txq_info *txq, int tid);
2127 void ieee80211_txq_purge(struct ieee80211_local *local,
2128 struct txq_info *txqi);
2129 void ieee80211_txq_remove_vlan(struct ieee80211_local *local,
2130 struct ieee80211_sub_if_data *sdata);
2131 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
2132 struct txq_info *txqi);
2133 void ieee80211_wake_txqs(struct tasklet_struct *t);
2134 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
2135 u16 transaction, u16 auth_alg, u16 status,
2136 const u8 *extra, size_t extra_len, const u8 *bssid,
2137 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
2139 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
2140 const u8 *da, const u8 *bssid,
2141 u16 stype, u16 reason,
2142 bool send_frame, u8 *frame_buf);
2145 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0),
2146 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1),
2147 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2),
2150 int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer,
2152 struct ieee80211_scan_ies *ie_desc,
2153 const u8 *ie, size_t ie_len,
2154 u8 bands_used, u32 *rate_masks,
2155 struct cfg80211_chan_def *chandef,
2157 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
2158 const u8 *src, const u8 *dst,
2160 struct ieee80211_channel *chan,
2161 const u8 *ssid, size_t ssid_len,
2162 const u8 *ie, size_t ie_len,
2164 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
2165 struct ieee802_11_elems *elems,
2166 enum nl80211_band band, u32 *basic_rates);
2167 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2168 enum ieee80211_smps_mode smps_mode);
2169 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
2170 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
2172 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
2173 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2175 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2176 const struct cfg80211_chan_def *chandef,
2177 u16 prot_mode, bool rifs_mode);
2178 void ieee80211_ie_build_wide_bw_cs(u8 *pos,
2179 const struct cfg80211_chan_def *chandef);
2180 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2182 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2183 const struct cfg80211_chan_def *chandef);
2184 u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype);
2185 u8 *ieee80211_ie_build_he_cap(u8 *pos,
2186 const struct ieee80211_sta_he_cap *he_cap,
2188 void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data *sdata,
2189 struct sk_buff *skb);
2190 u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef);
2191 int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
2192 const struct ieee80211_supported_band *sband,
2193 const u8 *srates, int srates_len, u32 *rates);
2194 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
2195 struct sk_buff *skb, bool need_basic,
2196 enum nl80211_band band);
2197 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
2198 struct sk_buff *skb, bool need_basic,
2199 enum nl80211_band band);
2200 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
2201 void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata,
2202 struct ieee80211_sta_s1g_cap *caps,
2203 struct sk_buff *skb);
2204 void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata,
2205 struct sk_buff *skb);
2207 /* channel management */
2208 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2209 struct cfg80211_chan_def *chandef);
2210 bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
2211 const struct ieee80211_vht_operation *oper,
2212 const struct ieee80211_ht_operation *htop,
2213 struct cfg80211_chan_def *chandef);
2214 bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
2215 const struct ieee80211_he_operation *he_oper,
2216 struct cfg80211_chan_def *chandef);
2217 bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper,
2218 struct cfg80211_chan_def *chandef);
2219 u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
2222 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
2223 const struct cfg80211_chan_def *chandef,
2224 enum ieee80211_chanctx_mode mode);
2226 ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
2227 const struct cfg80211_chan_def *chandef,
2228 enum ieee80211_chanctx_mode mode,
2229 bool radar_required);
2231 ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata);
2232 int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);
2235 ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
2236 const struct cfg80211_chan_def *chandef,
2238 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
2239 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
2240 void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
2242 int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2243 struct ieee80211_chanctx *ctx);
2245 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2246 struct ieee80211_chanctx *chanctx);
2247 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2248 struct ieee80211_chanctx *ctx);
2249 bool ieee80211_is_radar_required(struct ieee80211_local *local);
2251 void ieee80211_dfs_cac_timer(unsigned long data);
2252 void ieee80211_dfs_cac_timer_work(struct work_struct *work);
2253 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2254 void ieee80211_dfs_radar_detected_work(struct work_struct *work);
2255 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2256 struct cfg80211_csa_settings *csa_settings);
2258 bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs);
2259 bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n);
2260 const struct ieee80211_cipher_scheme *
2261 ieee80211_cs_get(struct ieee80211_local *local, u32 cipher,
2262 enum nl80211_iftype iftype);
2263 int ieee80211_cs_headroom(struct ieee80211_local *local,
2264 struct cfg80211_crypto_settings *crypto,
2265 enum nl80211_iftype iftype);
2266 void ieee80211_recalc_dtim(struct ieee80211_local *local,
2267 struct ieee80211_sub_if_data *sdata);
2268 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2269 const struct cfg80211_chan_def *chandef,
2270 enum ieee80211_chanctx_mode chanmode,
2272 int ieee80211_max_num_channels(struct ieee80211_local *local);
2273 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2274 struct ieee80211_chanctx *ctx);
2277 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2278 const u8 *peer, u8 action_code, u8 dialog_token,
2279 u16 status_code, u32 peer_capability,
2280 bool initiator, const u8 *extra_ies,
2281 size_t extra_ies_len);
2282 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2283 const u8 *peer, enum nl80211_tdls_operation oper);
2284 void ieee80211_tdls_peer_del_work(struct work_struct *wk);
2285 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2286 const u8 *addr, u8 oper_class,
2287 struct cfg80211_chan_def *chandef);
2288 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2289 struct net_device *dev,
2291 void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
2292 void ieee80211_tdls_chsw_work(struct work_struct *wk);
2293 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
2294 const u8 *peer, u16 reason);
2295 const char *ieee80211_get_reason_code_string(u16 reason_code);
2296 u16 ieee80211_encode_usf(int val);
2297 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
2298 enum nl80211_iftype type);
2300 extern const struct ethtool_ops ieee80211_ethtool_ops;
2302 u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw,
2303 struct ieee80211_vif *vif,
2304 struct ieee80211_sta *pubsta,
2305 int len, bool ampdu);
2306 #ifdef CONFIG_MAC80211_NOINLINE
2307 #define debug_noinline noinline
2309 #define debug_noinline
2312 void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache);
2313 void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache);
2315 #endif /* IEEE80211_I_H */