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 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
54 * reception of at least three fragmented frames. This limit can be increased
55 * by changing this define, at the cost of slower frame reassembly and
56 * increased memory use (about 2 kB of RAM per entry). */
57 #define IEEE80211_FRAGMENT_MAX 4
59 /* power level hasn't been configured (or set to automatic) */
60 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN
63 * Some APs experience problems when working with U-APSD. Decreasing the
64 * probability of that happening by using legacy mode for all ACs but VO isn't
67 * Cisco 4410N originally forced us to enable VO by default only because it
68 * treated non-VO ACs as legacy.
70 * However some APs (notably Netgear R7000) silently reclassify packets to
71 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval
72 * clients would never see some frames (e.g. ARP responses) or would fetch them
73 * accidentally after a long time.
75 * It makes little sense to enable u-APSD queues by default because it needs
76 * userspace applications to be aware of it to actually take advantage of the
77 * possible additional powersavings. Implicitly depending on driver autotrigger
78 * frame support doesn't make much sense.
80 #define IEEE80211_DEFAULT_UAPSD_QUEUES 0
82 #define IEEE80211_DEFAULT_MAX_SP_LEN \
83 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
85 extern const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS];
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;
117 * During association, we save an ERP value from a probe response so
118 * that we can feed ERP info to the driver when handling the
119 * association completes. these fields probably won't be up-to-date
120 * otherwise, you probably don't want to use them.
125 /* Keep track of the corruption of the last beacon/probe response. */
128 /* Keep track of what bits of information we have valid info for. */
133 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
134 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
135 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
137 * These are bss flags that are attached to a bss in the
138 * @corrupt_data field of &struct ieee80211_bss.
140 enum ieee80211_bss_corrupt_data_flags {
141 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
142 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
146 * enum ieee80211_valid_data_flags - BSS valid data flags
147 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
148 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
149 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
151 * These are bss flags that are attached to a bss in the
152 * @valid_data field of &struct ieee80211_bss. They show which parts
153 * of the data structure were received as a result of an un-corrupted
154 * beacon/probe response.
156 enum ieee80211_bss_valid_data_flags {
157 IEEE80211_BSS_VALID_WMM = BIT(1),
158 IEEE80211_BSS_VALID_RATES = BIT(2),
159 IEEE80211_BSS_VALID_ERP = BIT(3)
162 typedef unsigned __bitwise ieee80211_tx_result;
163 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
164 #define TX_DROP ((__force ieee80211_tx_result) 1u)
165 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
167 #define IEEE80211_TX_NO_SEQNO BIT(0)
168 #define IEEE80211_TX_UNICAST BIT(1)
169 #define IEEE80211_TX_PS_BUFFERED BIT(2)
171 struct ieee80211_tx_data {
173 struct sk_buff_head skbs;
174 struct ieee80211_local *local;
175 struct ieee80211_sub_if_data *sdata;
176 struct sta_info *sta;
177 struct ieee80211_key *key;
178 struct ieee80211_tx_rate rate;
184 typedef unsigned __bitwise ieee80211_rx_result;
185 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
186 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
187 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
188 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
191 * enum ieee80211_packet_rx_flags - packet RX flags
192 * @IEEE80211_RX_AMSDU: a-MSDU packet
193 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
194 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
196 * These are per-frame flags that are attached to a frame in the
197 * @rx_flags field of &struct ieee80211_rx_status.
199 enum ieee80211_packet_rx_flags {
200 IEEE80211_RX_AMSDU = BIT(3),
201 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
202 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
206 * enum ieee80211_rx_flags - RX data flags
208 * @IEEE80211_RX_CMNTR: received on cooked monitor already
209 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
210 * to cfg80211_report_obss_beacon().
212 * These flags are used across handling multiple interfaces
213 * for a single frame.
215 enum ieee80211_rx_flags {
216 IEEE80211_RX_CMNTR = BIT(0),
217 IEEE80211_RX_BEACON_REPORTED = BIT(1),
220 struct ieee80211_rx_data {
221 struct napi_struct *napi;
223 struct ieee80211_local *local;
224 struct ieee80211_sub_if_data *sdata;
225 struct sta_info *sta;
226 struct ieee80211_key *key;
231 * Index into sequence numbers array, 0..16
232 * since the last (16) is used for non-QoS,
233 * will be 16 on non-QoS frames.
238 * Index into the security IV/PN arrays, 0..16
239 * since the last (16) is used for CCMP-encrypted
240 * management frames, will be set to 16 on mgmt
241 * frames and 0 on non-QoS frames.
249 struct ieee80211_csa_settings {
250 const u16 *counter_offsets_beacon;
251 const u16 *counter_offsets_presp;
253 int n_counter_offsets_beacon;
254 int n_counter_offsets_presp;
261 int head_len, tail_len;
262 struct ieee80211_meshconf_ie *meshconf;
263 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
264 u8 csa_current_counter;
265 struct rcu_head rcu_head;
269 struct rcu_head rcu_head;
271 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
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;
291 /* to be used after channel switch. */
292 struct cfg80211_beacon_data *next_beacon;
293 struct list_head vlans; /* write-protected with RTNL and local->mtx */
296 atomic_t num_mcast_sta; /* number of stations receiving multicast */
298 bool multicast_to_unicast;
301 struct ieee80211_if_wds {
302 struct sta_info *sta;
303 u8 remote_addr[ETH_ALEN];
306 struct ieee80211_if_vlan {
307 struct list_head list; /* write-protected with RTNL and local->mtx */
309 /* used for all tx if the VLAN is configured to 4-addr mode */
310 struct sta_info __rcu *sta;
311 atomic_t num_mcast_sta; /* number of stations receiving multicast */
315 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
316 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
317 __u32 fwded_frames; /* Mesh total forwarded frames */
318 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
319 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
320 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
323 #define PREQ_Q_F_START 0x1
324 #define PREQ_Q_F_REFRESH 0x2
325 struct mesh_preq_queue {
326 struct list_head list;
331 struct ieee80211_roc_work {
332 struct list_head list;
334 struct ieee80211_sub_if_data *sdata;
336 struct ieee80211_channel *chan;
338 bool started, abort, hw_begun, notified;
341 unsigned long start_time;
343 u32 duration, req_duration;
344 struct sk_buff *frame;
345 u64 cookie, mgmt_tx_cookie;
346 enum ieee80211_roc_type type;
349 /* flags used in struct ieee80211_if_managed.flags */
350 enum ieee80211_sta_flags {
351 IEEE80211_STA_CONNECTION_POLL = BIT(1),
352 IEEE80211_STA_CONTROL_PORT = BIT(2),
353 IEEE80211_STA_DISABLE_HT = BIT(4),
354 IEEE80211_STA_MFP_ENABLED = BIT(6),
355 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
356 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
357 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
358 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
359 IEEE80211_STA_DISABLE_VHT = BIT(11),
360 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
361 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
362 IEEE80211_STA_DISABLE_WMM = BIT(14),
363 IEEE80211_STA_ENABLE_RRM = BIT(15),
364 IEEE80211_STA_DISABLE_HE = BIT(16),
367 struct ieee80211_mgd_auth_data {
368 struct cfg80211_bss *bss;
369 unsigned long timeout;
371 u16 algorithm, expected_transaction;
373 u8 key[WLAN_KEY_LEN_WEP104];
377 bool timeout_started;
379 u16 sae_trans, sae_status;
384 struct ieee80211_mgd_assoc_data {
385 struct cfg80211_bss *bss;
386 const u8 *supp_rates;
388 unsigned long timeout;
392 u8 prev_bssid[ETH_ALEN];
393 u8 ssid[IEEE80211_MAX_SSID_LEN];
399 bool timeout_started;
403 struct ieee80211_vht_cap ap_vht_cap;
405 u8 fils_nonces[2 * FILS_NONCE_LEN];
406 u8 fils_kek[FILS_MAX_KEK_LEN];
413 struct ieee80211_sta_tx_tspec {
414 /* timestamp of the first packet in the time slice */
415 unsigned long time_slice_start;
417 u32 admitted_time; /* in usecs, unlike over the air */
419 s8 up; /* signed to be able to invalidate with -1 during teardown */
421 /* consumed TX time in microseconds in the time slice */
422 u32 consumed_tx_time;
424 TX_TSPEC_ACTION_NONE = 0,
425 TX_TSPEC_ACTION_DOWNGRADE,
426 TX_TSPEC_ACTION_STOP_DOWNGRADE,
431 DECLARE_EWMA(beacon_signal, 4, 4)
433 struct ieee80211_if_managed {
434 struct timer_list timer;
435 struct timer_list conn_mon_timer;
436 struct timer_list bcn_mon_timer;
437 struct timer_list chswitch_timer;
438 struct work_struct monitor_work;
439 struct work_struct chswitch_work;
440 struct work_struct beacon_connection_loss_work;
441 struct work_struct csa_connection_drop_work;
443 unsigned long beacon_timeout;
444 unsigned long probe_timeout;
445 int probe_send_count;
446 bool nullfunc_failed;
447 bool connection_loss;
449 struct cfg80211_bss *associated;
450 struct ieee80211_mgd_auth_data *auth_data;
451 struct ieee80211_mgd_assoc_data *assoc_data;
453 u8 bssid[ETH_ALEN] __aligned(2);
455 bool powersave; /* powersave requested for this iface */
456 bool broken_ap; /* AP is broken -- turn off powersave */
459 enum ieee80211_smps_mode req_smps, /* requested smps mode */
460 driver_smps_mode; /* smps mode request */
462 struct work_struct request_smps_work;
466 bool csa_waiting_bcn;
467 bool csa_ignored_same_chan;
469 bool beacon_crc_valid;
473 bool status_received;
477 IEEE80211_MFP_DISABLED,
478 IEEE80211_MFP_OPTIONAL,
479 IEEE80211_MFP_REQUIRED
480 } mfp; /* management frame protection */
483 * Bitmask of enabled u-apsd queues,
484 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
487 unsigned int uapsd_queues;
490 * Maximum number of buffered frames AP can deliver during a
491 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
492 * Needs a new association to take effect.
494 unsigned int uapsd_max_sp_len;
496 int wmm_last_param_set;
497 int mu_edca_last_param_set;
503 struct ewma_beacon_signal ave_beacon_signal;
506 * Number of Beacon frames used in ave_beacon_signal. This can be used
507 * to avoid generating less reliable cqm events that would be based
508 * only on couple of received frames.
510 unsigned int count_beacon_signal;
512 /* Number of times beacon loss was invoked. */
513 unsigned int beacon_loss_count;
516 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
517 * that triggered a cqm event. 0 indicates that no event has been
518 * generated for the current association.
520 int last_cqm_event_signal;
523 * State variables for keeping track of RSSI of the AP currently
524 * connected to and informing driver when RSSI has gone
525 * below/above a certain threshold.
527 int rssi_min_thold, rssi_max_thold;
528 int last_ave_beacon_signal;
530 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
531 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
532 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
533 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
536 u8 tdls_peer[ETH_ALEN] __aligned(2);
537 struct delayed_work tdls_peer_del_work;
538 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
539 struct sk_buff *teardown_skb; /* A copy to send through the AP */
540 spinlock_t teardown_lock; /* To lock changing teardown_skb */
541 bool tdls_chan_switch_prohibited;
542 bool tdls_wider_bw_prohibited;
544 /* WMM-AC TSPEC support */
545 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
546 /* Use a separate work struct so that we can do something here
547 * while the sdata->work is flushing the queues, for example.
548 * otherwise, in scenarios where we hardly get any traffic out
549 * on the BE queue, but there's a lot of VO traffic, we might
550 * get stuck in a downgraded situation and flush takes forever.
552 struct delayed_work tx_tspec_wk;
554 /* Information elements from the last transmitted (Re)Association
558 size_t assoc_req_ies_len;
561 struct ieee80211_if_ibss {
562 struct timer_list timer;
563 struct work_struct csa_connection_drop_work;
565 unsigned long last_scan_completed;
574 bool userspace_handles_dfs;
576 u8 bssid[ETH_ALEN] __aligned(2);
577 u8 ssid[IEEE80211_MAX_SSID_LEN];
580 struct cfg80211_chan_def chandef;
582 unsigned long ibss_join_req;
583 /* probe response/beacon for IBSS */
584 struct beacon_data __rcu *presp;
586 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
587 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
589 spinlock_t incomplete_lock;
590 struct list_head incomplete_stations;
593 IEEE80211_IBSS_MLME_SEARCH,
594 IEEE80211_IBSS_MLME_JOINED,
599 * struct ieee80211_if_ocb - OCB mode state
601 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
602 * @wrkq_flags: OCB deferred task action
603 * @incomplete_lock: delayed STA insertion lock
604 * @incomplete_stations: list of STAs waiting for delayed insertion
605 * @joined: indication if the interface is connected to an OCB network
607 struct ieee80211_if_ocb {
608 struct timer_list housekeeping_timer;
609 unsigned long wrkq_flags;
611 spinlock_t incomplete_lock;
612 struct list_head incomplete_stations;
618 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
620 * these declarations define the interface, which enables
621 * vendor-specific mesh synchronization
624 struct ieee802_11_elems;
625 struct ieee80211_mesh_sync_ops {
626 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
628 struct ieee80211_mgmt *mgmt,
629 struct ieee802_11_elems *elems,
630 struct ieee80211_rx_status *rx_status);
632 /* should be called with beacon_data under RCU read lock */
633 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata,
634 struct beacon_data *beacon);
635 /* add other framework functions here */
638 struct mesh_csa_settings {
639 struct rcu_head rcu_head;
640 struct cfg80211_csa_settings settings;
643 struct ieee80211_if_mesh {
644 struct timer_list housekeeping_timer;
645 struct timer_list mesh_path_timer;
646 struct timer_list mesh_path_root_timer;
648 unsigned long wrkq_flags;
649 unsigned long mbss_changed;
651 bool userspace_handles_dfs;
653 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
655 /* Active Path Selection Protocol Identifier */
657 /* Active Path Selection Metric Identifier */
659 /* Congestion Control Mode Identifier */
661 /* Synchronization Protocol Identifier */
663 /* Authentication Protocol Identifier */
665 /* Local mesh Sequence Number */
667 /* Last used PREQ ID */
670 /* Timestamp of last SN update */
671 unsigned long last_sn_update;
672 /* Time when it's ok to send next PERR */
673 unsigned long next_perr;
674 /* Timestamp of last PREQ sent */
675 unsigned long last_preq;
676 struct mesh_rmc *rmc;
677 spinlock_t mesh_preq_queue_lock;
678 struct mesh_preq_queue preq_queue;
680 struct mesh_stats mshstats;
681 struct mesh_config mshcfg;
682 atomic_t estab_plinks;
684 bool accepting_plinks;
686 struct beacon_data __rcu *beacon;
690 IEEE80211_MESH_SEC_NONE = 0x0,
691 IEEE80211_MESH_SEC_AUTHED = 0x1,
692 IEEE80211_MESH_SEC_SECURED = 0x2,
695 /* Extensible Synchronization Framework */
696 const struct ieee80211_mesh_sync_ops *sync_ops;
697 s64 sync_offset_clockdrift_max;
698 spinlock_t sync_offset_lock;
699 /* mesh power save */
700 enum nl80211_mesh_power_mode nonpeer_pm;
701 int ps_peers_light_sleep;
702 int ps_peers_deep_sleep;
704 /* Channel Switching Support */
705 struct mesh_csa_settings __rcu *csa;
707 IEEE80211_MESH_CSA_ROLE_NONE,
708 IEEE80211_MESH_CSA_ROLE_INIT,
709 IEEE80211_MESH_CSA_ROLE_REPEATER,
714 /* offset from skb->data while building IE */
717 struct mesh_table *mesh_paths;
718 struct mesh_table *mpp_paths; /* Store paths for MPP&MAP */
719 int mesh_paths_generation;
720 int mpp_paths_generation;
723 #ifdef CONFIG_MAC80211_MESH
724 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
725 do { (msh)->mshstats.name++; } while (0)
727 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
732 * enum ieee80211_sub_if_data_flags - virtual interface flags
734 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
735 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
736 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
737 * associated stations and deliver multicast frames both
738 * back to wireless media and to the local net stack.
739 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
740 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
742 enum ieee80211_sub_if_data_flags {
743 IEEE80211_SDATA_ALLMULTI = BIT(0),
744 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
745 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
746 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
747 IEEE80211_SDATA_IN_DRIVER = BIT(5),
751 * enum ieee80211_sdata_state_bits - virtual interface state bits
752 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
753 * mirrors netif_running() but is separate for interface type
754 * change handling while the interface is up
755 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
756 * mode, so queues are stopped
757 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
758 * to offchannel, reset when offchannel returns
760 enum ieee80211_sdata_state_bits {
762 SDATA_STATE_OFFCHANNEL,
763 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
767 * enum ieee80211_chanctx_mode - channel context configuration mode
769 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
770 * multiple interfaces
771 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
772 * only by a single interface. This can be used for example for
773 * non-fixed channel IBSS.
775 enum ieee80211_chanctx_mode {
776 IEEE80211_CHANCTX_SHARED,
777 IEEE80211_CHANCTX_EXCLUSIVE
781 * enum ieee80211_chanctx_replace_state - channel context replacement state
783 * This is used for channel context in-place reservations that require channel
784 * context switch/swap.
786 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
787 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
788 * by a (not yet registered) channel context pointed by %replace_ctx.
789 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
790 * replaces an existing channel context pointed to by %replace_ctx.
792 enum ieee80211_chanctx_replace_state {
793 IEEE80211_CHANCTX_REPLACE_NONE,
794 IEEE80211_CHANCTX_WILL_BE_REPLACED,
795 IEEE80211_CHANCTX_REPLACES_OTHER,
798 struct ieee80211_chanctx {
799 struct list_head list;
800 struct rcu_head rcu_head;
802 struct list_head assigned_vifs;
803 struct list_head reserved_vifs;
805 enum ieee80211_chanctx_replace_state replace_state;
806 struct ieee80211_chanctx *replace_ctx;
808 enum ieee80211_chanctx_mode mode;
811 struct ieee80211_chanctx_conf conf;
814 struct mac80211_qos_map {
815 struct cfg80211_qos_map qos_map;
816 struct rcu_head rcu_head;
819 enum txq_info_flags {
822 IEEE80211_TXQ_NO_AMSDU,
823 IEEE80211_TXQ_STOP_NETIF_TX,
827 * struct txq_info - per tid queue
829 * @tin: contains packets split into multiple flows
830 * @def_flow: used as a fallback flow when a packet destined to @tin hashes to
831 * a fq_flow which is already owned by a different tin
832 * @def_cvars: codel vars for @def_flow
833 * @frags: used to keep fragments created after dequeue
834 * @schedule_order: used with ieee80211_local->active_txqs
835 * @schedule_round: counter to prevent infinite loops on TXQ scheduling
839 struct fq_flow def_flow;
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 /* Fragment table for host-based reassembly */
895 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
896 unsigned int fragment_next;
898 /* TID bitmap for NoAck policy */
901 /* bit field of ACM bits (BIT(802.1D tag)) */
904 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS +
905 NUM_DEFAULT_MGMT_KEYS +
906 NUM_DEFAULT_BEACON_KEYS];
907 struct ieee80211_key __rcu *default_unicast_key;
908 struct ieee80211_key __rcu *default_multicast_key;
909 struct ieee80211_key __rcu *default_mgmt_key;
910 struct ieee80211_key __rcu *default_beacon_key;
913 __be16 control_port_protocol;
914 bool control_port_no_encrypt;
915 bool control_port_no_preauth;
916 bool control_port_over_nl80211;
917 int encrypt_headroom;
919 atomic_t num_tx_queued;
920 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
921 struct mac80211_qos_map __rcu *qos_map;
923 struct work_struct csa_finalize_work;
924 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
925 struct cfg80211_chan_def csa_chandef;
927 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
928 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
930 /* context reservation -- protected with chanctx_mtx */
931 struct ieee80211_chanctx *reserved_chanctx;
932 struct cfg80211_chan_def reserved_chandef;
933 bool reserved_radar_required;
936 /* used to reconfigure hardware SM PS */
937 struct work_struct recalc_smps;
939 struct work_struct work;
940 struct sk_buff_head skb_queue;
943 enum ieee80211_smps_mode smps_mode;
945 int user_power_level; /* in dBm */
946 int ap_power_level; /* in dBm */
949 struct delayed_work dfs_cac_timer_work;
952 * AP this belongs to: self in AP mode and
953 * corresponding AP in VLAN mode, NULL for
954 * all others (might be needed later in IBSS)
956 struct ieee80211_if_ap *bss;
958 /* bitmap of allowed (non-MCS) rate indexes for rate control */
959 u32 rc_rateidx_mask[NUM_NL80211_BANDS];
961 bool rc_has_mcs_mask[NUM_NL80211_BANDS];
962 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
964 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
965 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
967 /* Beacon frame (non-MCS) rate (as a bitmap) */
968 u32 beacon_rateidx_mask[NUM_NL80211_BANDS];
969 bool beacon_rate_set;
972 struct ieee80211_if_ap ap;
973 struct ieee80211_if_wds wds;
974 struct ieee80211_if_vlan vlan;
975 struct ieee80211_if_managed mgd;
976 struct ieee80211_if_ibss ibss;
977 struct ieee80211_if_mesh mesh;
978 struct ieee80211_if_ocb ocb;
979 struct ieee80211_if_mntr mntr;
980 struct ieee80211_if_nan nan;
983 #ifdef CONFIG_MAC80211_DEBUGFS
985 struct dentry *subdir_stations;
986 struct dentry *default_unicast_key;
987 struct dentry *default_multicast_key;
988 struct dentry *default_mgmt_key;
989 struct dentry *default_beacon_key;
995 /* must be last, dynamically sized area in this! */
996 struct ieee80211_vif vif;
1000 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
1002 return container_of(p, struct ieee80211_sub_if_data, vif);
1005 static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
1006 __acquires(&sdata->wdev.mtx)
1008 mutex_lock(&sdata->wdev.mtx);
1009 __acquire(&sdata->wdev.mtx);
1012 static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
1013 __releases(&sdata->wdev.mtx)
1015 mutex_unlock(&sdata->wdev.mtx);
1016 __release(&sdata->wdev.mtx);
1019 #define sdata_dereference(p, sdata) \
1020 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
1023 sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
1025 lockdep_assert_held(&sdata->wdev.mtx);
1029 ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
1031 switch (chandef->width) {
1032 case NL80211_CHAN_WIDTH_5:
1034 case NL80211_CHAN_WIDTH_10:
1042 ieee80211_vif_get_shift(struct ieee80211_vif *vif)
1044 struct ieee80211_chanctx_conf *chanctx_conf;
1048 chanctx_conf = rcu_dereference(vif->chanctx_conf);
1050 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
1057 IEEE80211_RX_MSG = 1,
1058 IEEE80211_TX_STATUS_MSG = 2,
1061 enum queue_stop_reason {
1062 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1063 IEEE80211_QUEUE_STOP_REASON_PS,
1064 IEEE80211_QUEUE_STOP_REASON_CSA,
1065 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1066 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1067 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1068 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1069 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1070 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1071 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1073 IEEE80211_QUEUE_STOP_REASONS,
1076 #ifdef CONFIG_MAC80211_LEDS
1077 struct tpt_led_trigger {
1079 const struct ieee80211_tpt_blink *blink_table;
1080 unsigned int blink_table_len;
1081 struct timer_list timer;
1082 struct ieee80211_local *local;
1083 unsigned long prev_traffic;
1084 unsigned long tx_bytes, rx_bytes;
1085 unsigned int active, want;
1091 * mac80211 scan flags - currently active scan mode
1093 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1094 * well be on the operating channel
1095 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1096 * determine if we are on the operating channel or not
1097 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1098 * channel. This should not interrupt normal traffic.
1099 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1100 * that the scan completed.
1101 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1102 * a scan complete for an aborted scan.
1103 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1109 SCAN_ONCHANNEL_SCANNING,
1116 * enum mac80211_scan_state - scan state machine states
1118 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1119 * determines if we should keep on scanning or switch back to the
1121 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1122 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1123 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1125 * @SCAN_RESUME: Resume the scan and scan the next channel
1126 * @SCAN_ABORT: Abort the scan and go back to operating channel
1128 enum mac80211_scan_state {
1137 struct ieee80211_local {
1138 /* embed the driver visible part.
1139 * don't cast (use the static inlines below), but we keep
1140 * it first anyway so they become a no-op */
1141 struct ieee80211_hw hw;
1144 struct codel_vars *cvars;
1145 struct codel_params cparams;
1147 /* protects active_txqs and txqi->schedule_order */
1148 spinlock_t active_txq_lock[IEEE80211_NUM_ACS];
1149 struct list_head active_txqs[IEEE80211_NUM_ACS];
1150 u16 schedule_round[IEEE80211_NUM_ACS];
1153 u32 aql_txq_limit_low[IEEE80211_NUM_ACS];
1154 u32 aql_txq_limit_high[IEEE80211_NUM_ACS];
1156 atomic_t aql_total_pending_airtime;
1158 const struct ieee80211_ops *ops;
1161 * private workqueue to mac80211. mac80211 makes this accessible
1162 * via ieee80211_queue_work()
1164 struct workqueue_struct *workqueue;
1166 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1167 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1168 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1169 spinlock_t queue_stop_reason_lock;
1172 int monitors, cooked_mntrs;
1173 /* number of interfaces with corresponding FIF_ flags */
1174 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1177 bool rx_mcast_action_reg;
1178 unsigned int filter_flags; /* FIF_* */
1180 bool wiphy_ciphers_allocated;
1184 /* protects the aggregated multicast list and filter calls */
1185 spinlock_t filter_lock;
1187 /* used for uploading changed mc list */
1188 struct work_struct reconfig_filter;
1190 /* aggregated multicast list */
1191 struct netdev_hw_addr_list mc_list;
1193 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1196 * suspended is true if we finished all the suspend _and_ we have
1197 * not yet come up from resume. This is to be used by mac80211
1198 * to ensure driver sanity during suspend and mac80211's own
1199 * sanity. It can eventually be used for WoW as well.
1204 * Resuming is true while suspended, but when we're reprogramming the
1205 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1206 * again even though some other parts of the stack are still suspended
1207 * and we still drop received frames to avoid waking the stack.
1212 * quiescing is true during the suspend process _only_ to
1213 * ease timer cancelling etc.
1217 /* device is started */
1220 /* device is during a HW reconfig */
1223 /* wowlan is enabled -- don't reconfig on resume */
1226 struct work_struct radar_detected_work;
1228 /* number of RX chains the hardware has */
1231 /* bitmap of which sbands were copied */
1234 int tx_headroom; /* required headroom for hardware/radiotap */
1236 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1237 * added to skb_queue will be processed, but frames in
1238 * skb_queue_unreliable may be dropped if the total length of these
1239 * queues increases over the limit. */
1240 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1241 struct tasklet_struct tasklet;
1242 struct sk_buff_head skb_queue;
1243 struct sk_buff_head skb_queue_unreliable;
1245 spinlock_t rx_path_lock;
1249 * The mutex only protects the list, hash table and
1250 * counter, reads are done with RCU.
1252 struct mutex sta_mtx;
1253 spinlock_t tim_lock;
1254 unsigned long num_sta;
1255 struct list_head sta_list;
1256 struct rhltable sta_hash;
1257 struct timer_list sta_cleanup;
1260 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1261 struct tasklet_struct tx_pending_tasklet;
1262 struct tasklet_struct wake_txqs_tasklet;
1264 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1266 /* number of interfaces with allmulti RX */
1267 atomic_t iff_allmultis;
1269 struct rate_control_ref *rate_ctrl;
1271 struct arc4_ctx wep_tx_ctx;
1272 struct arc4_ctx wep_rx_ctx;
1276 struct list_head interfaces;
1277 struct list_head mon_list; /* only that are IFF_UP && !cooked */
1278 struct mutex iflist_mtx;
1281 * Key mutex, protects sdata's key_list and sta_info's
1282 * key pointers and ptk_idx (write access, they're RCU.)
1284 struct mutex key_mtx;
1286 /* mutex for scan and work locking */
1289 /* Scanning and BSS list */
1290 unsigned long scanning;
1291 struct cfg80211_ssid scan_ssid;
1292 struct cfg80211_scan_request *int_scan_req;
1293 struct cfg80211_scan_request __rcu *scan_req;
1294 struct ieee80211_scan_request *hw_scan_req;
1295 struct cfg80211_chan_def scan_chandef;
1296 enum nl80211_band hw_scan_band;
1297 int scan_channel_idx;
1299 int hw_scan_ies_bufsize;
1300 struct cfg80211_scan_info scan_info;
1302 struct work_struct sched_scan_stopped_work;
1303 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1304 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1305 u8 scan_addr[ETH_ALEN];
1307 unsigned long leave_oper_channel_time;
1308 enum mac80211_scan_state next_scan_state;
1309 struct delayed_work scan_work;
1310 struct ieee80211_sub_if_data __rcu *scan_sdata;
1311 /* For backward compatibility only -- do not use */
1312 struct cfg80211_chan_def _oper_chandef;
1314 /* Temporary remain-on-channel for off-channel operations */
1315 struct ieee80211_channel *tmp_channel;
1317 /* channel contexts */
1318 struct list_head chanctx_list;
1319 struct mutex chanctx_mtx;
1321 #ifdef CONFIG_MAC80211_LEDS
1322 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1323 struct led_trigger tpt_led;
1324 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1325 atomic_t radio_led_active, tpt_led_active;
1326 struct tpt_led_trigger *tpt_led_trigger;
1329 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1331 /* dot11CountersTable */
1332 u32 dot11TransmittedFragmentCount;
1333 u32 dot11MulticastTransmittedFrameCount;
1334 u32 dot11FailedCount;
1335 u32 dot11RetryCount;
1336 u32 dot11MultipleRetryCount;
1337 u32 dot11FrameDuplicateCount;
1338 u32 dot11ReceivedFragmentCount;
1339 u32 dot11MulticastReceivedFrameCount;
1340 u32 dot11TransmittedFrameCount;
1342 /* TX/RX handler statistics */
1343 unsigned int tx_handlers_drop;
1344 unsigned int tx_handlers_queued;
1345 unsigned int tx_handlers_drop_wep;
1346 unsigned int tx_handlers_drop_not_assoc;
1347 unsigned int tx_handlers_drop_unauth_port;
1348 unsigned int rx_handlers_drop;
1349 unsigned int rx_handlers_queued;
1350 unsigned int rx_handlers_drop_nullfunc;
1351 unsigned int rx_handlers_drop_defrag;
1352 unsigned int tx_expand_skb_head;
1353 unsigned int tx_expand_skb_head_cloned;
1354 unsigned int rx_expand_skb_head_defrag;
1355 unsigned int rx_handlers_fragments;
1356 unsigned int tx_status_drop;
1357 #define I802_DEBUG_INC(c) (c)++
1358 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1359 #define I802_DEBUG_INC(c) do { } while (0)
1360 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1363 int total_ps_buffered; /* total number of all buffered unicast and
1364 * multicast packets for power saving stations
1368 bool offchannel_ps_enabled;
1370 * PS can only be enabled when we have exactly one managed
1371 * interface (and monitors) in PS, this then points there.
1373 struct ieee80211_sub_if_data *ps_sdata;
1374 struct work_struct dynamic_ps_enable_work;
1375 struct work_struct dynamic_ps_disable_work;
1376 struct timer_list dynamic_ps_timer;
1377 struct notifier_block ifa_notifier;
1378 struct notifier_block ifa6_notifier;
1381 * The dynamic ps timeout configured from user space via WEXT -
1382 * this will override whatever chosen by mac80211 internally.
1384 int dynamic_ps_forced_timeout;
1386 int user_power_level; /* in dBm, for all interfaces */
1388 enum ieee80211_smps_mode smps_mode;
1390 struct work_struct restart_work;
1392 #ifdef CONFIG_MAC80211_DEBUGFS
1393 struct local_debugfsdentries {
1394 struct dentry *rcdir;
1395 struct dentry *keys;
1397 bool force_tx_status;
1401 * Remain-on-channel support
1403 struct delayed_work roc_work;
1404 struct list_head roc_list;
1405 struct work_struct hw_roc_start, hw_roc_done;
1406 unsigned long hw_roc_start_time;
1407 u64 roc_cookie_counter;
1409 struct idr ack_status_frames;
1410 spinlock_t ack_status_lock;
1412 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1414 /* virtual monitor interface */
1415 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1416 struct cfg80211_chan_def monitor_chandef;
1418 /* extended capabilities provided by mac80211 */
1421 /* TDLS channel switch */
1422 struct work_struct tdls_chsw_work;
1423 struct sk_buff_head skb_queue_tdls_chsw;
1426 static inline struct ieee80211_sub_if_data *
1427 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1429 return netdev_priv(dev);
1432 static inline struct ieee80211_sub_if_data *
1433 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1435 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1438 static inline struct ieee80211_supported_band *
1439 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata)
1441 struct ieee80211_local *local = sdata->local;
1442 struct ieee80211_chanctx_conf *chanctx_conf;
1443 enum nl80211_band band;
1446 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1448 if (WARN_ON_ONCE(!chanctx_conf)) {
1453 band = chanctx_conf->def.chan->band;
1456 return local->hw.wiphy->bands[band];
1459 /* this struct holds the value parsing from channel switch IE */
1460 struct ieee80211_csa_ie {
1461 struct cfg80211_chan_def chandef;
1467 u32 max_switch_time;
1470 /* Parsed Information Elements */
1471 struct ieee802_11_elems {
1475 /* pointers to IEs */
1476 const struct ieee80211_tdls_lnkie *lnk_id;
1477 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1478 const u8 *ext_capab;
1480 const u8 *supp_rates;
1481 const u8 *ds_params;
1482 const struct ieee80211_tim_ie *tim;
1483 const u8 *challenge;
1487 const u8 *ext_supp_rates;
1489 const u8 *wmm_param;
1490 const struct ieee80211_ht_cap *ht_cap_elem;
1491 const struct ieee80211_ht_operation *ht_operation;
1492 const struct ieee80211_vht_cap *vht_cap_elem;
1493 const struct ieee80211_vht_operation *vht_operation;
1494 const struct ieee80211_meshconf_ie *mesh_config;
1496 const struct ieee80211_he_operation *he_operation;
1497 const struct ieee80211_he_spr *he_spr;
1498 const struct ieee80211_mu_edca_param_set *mu_edca_param_set;
1499 const struct ieee80211_he_6ghz_capa *he_6ghz_capa;
1500 const u8 *uora_element;
1503 const __le16 *awake_window;
1507 const struct ieee80211_rann_ie *rann;
1508 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1509 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1510 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1511 const u8 *max_channel_switch_time;
1512 const u8 *country_elem;
1513 const u8 *pwr_constr_elem;
1514 const u8 *cisco_dtpc_elem;
1515 const struct ieee80211_timeout_interval_ie *timeout_int;
1516 const u8 *opmode_notif;
1517 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1518 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1519 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie;
1520 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie;
1521 const struct ieee80211_bssid_index *bssid_index;
1522 u8 max_bssid_indicator;
1525 const struct ieee80211_addba_ext_ie *addba_ext_ie;
1527 /* length of them, respectively */
1535 u8 ext_supp_rates_len;
1544 u8 country_elem_len;
1547 /* whether a parse error occurred while retrieving these elements */
1551 static inline struct ieee80211_local *hw_to_local(
1552 struct ieee80211_hw *hw)
1554 return container_of(hw, struct ieee80211_local, hw);
1557 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1559 return container_of(txq, struct txq_info, txq);
1562 static inline bool txq_has_queue(struct ieee80211_txq *txq)
1564 struct txq_info *txqi = to_txq_info(txq);
1566 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets);
1569 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1571 return ether_addr_equal(raddr, addr) ||
1572 is_broadcast_ether_addr(raddr);
1576 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1578 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1579 status->flag & RX_FLAG_MACTIME_END);
1580 if (status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END))
1582 /* can't handle non-legacy preamble yet */
1583 if (status->flag & RX_FLAG_MACTIME_PLCP_START &&
1584 status->encoding == RX_ENC_LEGACY)
1589 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
1590 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
1592 /* This function returns the number of multicast stations connected to this
1593 * interface. It returns -1 if that number is not tracked, that is for netdevs
1594 * not in AP or AP_VLAN mode or when using 4addr.
1597 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
1599 if (sdata->vif.type == NL80211_IFTYPE_AP)
1600 return atomic_read(&sdata->u.ap.num_mcast_sta);
1601 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
1602 return atomic_read(&sdata->u.vlan.num_mcast_sta);
1606 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1607 struct ieee80211_rx_status *status,
1608 unsigned int mpdu_len,
1609 unsigned int mpdu_offset);
1610 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1611 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1612 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1614 void ieee80211_configure_filter(struct ieee80211_local *local);
1615 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1617 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
1618 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1619 u64 *cookie, gfp_t gfp);
1621 void ieee80211_check_fast_rx(struct sta_info *sta);
1622 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1623 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1624 void ieee80211_clear_fast_rx(struct sta_info *sta);
1627 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1628 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1629 struct cfg80211_auth_request *req);
1630 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1631 struct cfg80211_assoc_request *req);
1632 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1633 struct cfg80211_deauth_request *req);
1634 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1635 struct cfg80211_disassoc_request *req);
1636 void ieee80211_send_pspoll(struct ieee80211_local *local,
1637 struct ieee80211_sub_if_data *sdata);
1638 void ieee80211_recalc_ps(struct ieee80211_local *local);
1639 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1640 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1641 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1642 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1643 struct sk_buff *skb);
1644 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1645 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1646 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1647 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1648 __le16 fc, bool acked);
1649 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1650 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1651 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
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,
1772 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1774 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1778 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1779 void ieee80211_tx_pending(unsigned long data);
1780 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1781 struct net_device *dev);
1782 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1783 struct net_device *dev);
1784 netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb,
1785 struct net_device *dev);
1786 void __ieee80211_subif_start_xmit(struct sk_buff *skb,
1787 struct net_device *dev,
1791 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1792 struct sk_buff_head *skbs);
1794 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
1795 struct sk_buff *skb, u32 info_flags);
1796 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
1797 struct ieee80211_supported_band *sband,
1798 int retry_count, int shift, bool send_to_cooked,
1799 struct ieee80211_tx_status *status);
1801 void ieee80211_check_fast_xmit(struct sta_info *sta);
1802 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
1803 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
1804 void ieee80211_clear_fast_xmit(struct sta_info *sta);
1805 int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
1806 const u8 *buf, size_t len,
1807 const u8 *dest, __be16 proto, bool unencrypted,
1809 int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev,
1810 const u8 *buf, size_t len);
1813 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1814 struct ieee80211_sta_ht_cap *ht_cap);
1815 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1816 struct ieee80211_supported_band *sband,
1817 const struct ieee80211_ht_cap *ht_cap_ie,
1818 struct sta_info *sta);
1819 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1820 const u8 *da, u16 tid,
1821 u16 initiator, u16 reason_code);
1822 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1823 enum ieee80211_smps_mode smps, const u8 *da,
1825 void ieee80211_request_smps_ap_work(struct work_struct *work);
1826 void ieee80211_request_smps_mgd_work(struct work_struct *work);
1827 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
1828 enum ieee80211_smps_mode smps_mode_new);
1830 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1831 u16 initiator, u16 reason, bool stop);
1832 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1833 u16 initiator, u16 reason, bool stop);
1834 void ___ieee80211_start_rx_ba_session(struct sta_info *sta,
1835 u8 dialog_token, u16 timeout,
1836 u16 start_seq_num, u16 ba_policy, u16 tid,
1837 u16 buf_size, bool tx, bool auto_seq,
1838 const struct ieee80211_addba_ext_ie *addbaext);
1839 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1840 enum ieee80211_agg_stop_reason reason);
1841 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1842 struct sta_info *sta,
1843 struct ieee80211_mgmt *mgmt, size_t len);
1844 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1845 struct sta_info *sta,
1846 struct ieee80211_mgmt *mgmt,
1848 void ieee80211_process_addba_request(struct ieee80211_local *local,
1849 struct sta_info *sta,
1850 struct ieee80211_mgmt *mgmt,
1853 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1854 enum ieee80211_agg_stop_reason reason);
1855 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1856 enum ieee80211_agg_stop_reason reason);
1857 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid,
1858 struct tid_ampdu_tx *tid_tx);
1859 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
1860 struct tid_ampdu_tx *tid_tx);
1861 void ieee80211_ba_session_work(struct work_struct *work);
1862 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1863 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1865 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1866 enum nl80211_smps_mode
1867 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps);
1871 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1872 struct ieee80211_supported_band *sband,
1873 const struct ieee80211_vht_cap *vht_cap_ie,
1874 struct sta_info *sta);
1875 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta);
1876 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
1877 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
1878 enum ieee80211_sta_rx_bandwidth
1879 ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
1880 enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta);
1881 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
1882 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
1883 struct ieee80211_mgmt *mgmt);
1884 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1885 struct sta_info *sta, u8 opmode,
1886 enum nl80211_band band);
1887 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1888 struct sta_info *sta, u8 opmode,
1889 enum nl80211_band band);
1890 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
1891 struct ieee80211_sta_vht_cap *vht_cap);
1892 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
1893 u16 vht_mask[NL80211_VHT_NSS_MAX]);
1894 enum nl80211_chan_width
1895 ieee80211_sta_rx_bw_to_chan_width(struct sta_info *sta);
1899 ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
1900 struct ieee80211_supported_band *sband,
1901 const u8 *he_cap_ie, u8 he_cap_len,
1902 const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
1903 struct sta_info *sta);
1905 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif,
1906 const struct ieee80211_he_spr *he_spr_ie_elem);
1909 ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif,
1910 const struct ieee80211_he_operation *he_op_ie_elem);
1912 /* Spectrum management */
1913 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1914 struct ieee80211_mgmt *mgmt,
1917 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
1918 * @sdata: the sdata of the interface which has received the frame
1919 * @elems: parsed 802.11 elements received with the frame
1920 * @current_band: indicates the current band
1921 * @vht_cap_info: VHT capabilities of the transmitter
1922 * @sta_flags: contains information about own capabilities and restrictions
1923 * to decide which channel switch announcements can be accepted. Only the
1924 * following subset of &enum ieee80211_sta_flags are evaluated:
1925 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
1926 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
1927 * %IEEE80211_STA_DISABLE_160MHZ.
1928 * @bssid: the currently connected bssid (for reporting)
1929 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
1930 All of them will be filled with if success only.
1931 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
1933 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
1934 struct ieee802_11_elems *elems,
1935 enum nl80211_band current_band,
1937 u32 sta_flags, u8 *bssid,
1938 struct ieee80211_csa_ie *csa_ie);
1940 /* Suspend/resume and hw reconfiguration */
1941 int ieee80211_reconfig(struct ieee80211_local *local);
1942 void ieee80211_stop_device(struct ieee80211_local *local);
1944 int __ieee80211_suspend(struct ieee80211_hw *hw,
1945 struct cfg80211_wowlan *wowlan);
1947 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1949 struct ieee80211_local *local = hw_to_local(hw);
1951 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
1952 !test_bit(SCAN_COMPLETED, &local->scanning),
1953 "%s: resume with hardware scan still in progress\n",
1954 wiphy_name(hw->wiphy));
1956 return ieee80211_reconfig(hw_to_local(hw));
1959 /* utility functions/constants */
1960 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
1961 int ieee80211_frame_duration(enum nl80211_band band, size_t len,
1962 int rate, int erp, int short_preamble,
1964 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
1965 struct ieee80211_tx_queue_params *qparam,
1967 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1968 bool bss_notify, bool enable_qos);
1969 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
1970 struct sta_info *sta, struct sk_buff *skb,
1973 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1974 struct sk_buff *skb, int tid,
1975 enum nl80211_band band, u32 txdata_flags);
1977 /* sta_out needs to be checked for ERR_PTR() before using */
1978 int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
1979 struct sk_buff *skb,
1980 struct sta_info **sta_out);
1983 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1984 struct sk_buff *skb, int tid,
1985 enum nl80211_band band, u32 txdata_flags)
1988 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band, txdata_flags);
1992 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1993 struct sk_buff *skb, int tid)
1995 struct ieee80211_chanctx_conf *chanctx_conf;
1998 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1999 if (WARN_ON(!chanctx_conf)) {
2005 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
2006 chanctx_conf->def.chan->band, 0);
2010 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
2011 struct sk_buff *skb)
2013 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
2014 ieee80211_tx_skb_tid(sdata, skb, 7);
2017 u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
2018 struct ieee802_11_elems *elems,
2019 u64 filter, u32 crc, u8 *transmitter_bssid,
2021 static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
2023 struct ieee802_11_elems *elems,
2024 u8 *transmitter_bssid,
2027 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0,
2028 transmitter_bssid, bss_bssid);
2032 extern const int ieee802_1d_to_ac[8];
2034 static inline int ieee80211_ac_from_tid(int tid)
2036 return ieee802_1d_to_ac[tid & 7];
2039 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
2040 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
2041 void ieee80211_dynamic_ps_timer(struct timer_list *t);
2042 void ieee80211_send_nullfunc(struct ieee80211_local *local,
2043 struct ieee80211_sub_if_data *sdata,
2045 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
2046 struct ieee80211_hdr *hdr);
2047 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
2048 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
2050 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
2051 unsigned long queues,
2052 enum queue_stop_reason reason,
2054 void ieee80211_stop_vif_queues(struct ieee80211_local *local,
2055 struct ieee80211_sub_if_data *sdata,
2056 enum queue_stop_reason reason);
2057 void ieee80211_wake_vif_queues(struct ieee80211_local *local,
2058 struct ieee80211_sub_if_data *sdata,
2059 enum queue_stop_reason reason);
2060 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
2061 unsigned long queues,
2062 enum queue_stop_reason reason,
2064 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
2065 enum queue_stop_reason reason,
2067 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
2068 enum queue_stop_reason reason,
2070 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
2071 void ieee80211_add_pending_skb(struct ieee80211_local *local,
2072 struct sk_buff *skb);
2073 void ieee80211_add_pending_skbs(struct ieee80211_local *local,
2074 struct sk_buff_head *skbs);
2075 void ieee80211_flush_queues(struct ieee80211_local *local,
2076 struct ieee80211_sub_if_data *sdata, bool drop);
2077 void __ieee80211_flush_queues(struct ieee80211_local *local,
2078 struct ieee80211_sub_if_data *sdata,
2079 unsigned int queues, bool drop);
2081 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
2084 * It's unsafe to try to do any work during reconfigure flow.
2085 * When the flow ends the work will be requeued.
2087 if (local->in_reconfig)
2091 * If quiescing is set, we are racing with __ieee80211_suspend.
2092 * __ieee80211_suspend flushes the workers after setting quiescing,
2093 * and we check quiescing / suspended before enqueing new workers.
2094 * We should abort the worker to avoid the races below.
2096 if (local->quiescing)
2100 * We might already be suspended if the following scenario occurs:
2101 * __ieee80211_suspend Control path
2103 * if (local->quiescing)
2105 * local->quiescing = true;
2106 * flush_workqueue();
2108 * local->suspended = true;
2109 * local->quiescing = false;
2110 * worker starts running...
2112 if (local->suspended)
2118 int ieee80211_txq_setup_flows(struct ieee80211_local *local);
2119 void ieee80211_txq_set_params(struct ieee80211_local *local);
2120 void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
2121 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
2122 struct sta_info *sta,
2123 struct txq_info *txq, int tid);
2124 void ieee80211_txq_purge(struct ieee80211_local *local,
2125 struct txq_info *txqi);
2126 void ieee80211_txq_remove_vlan(struct ieee80211_local *local,
2127 struct ieee80211_sub_if_data *sdata);
2128 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
2129 struct txq_info *txqi);
2130 void ieee80211_wake_txqs(unsigned long data);
2131 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
2132 u16 transaction, u16 auth_alg, u16 status,
2133 const u8 *extra, size_t extra_len, const u8 *bssid,
2134 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
2136 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
2137 const u8 *da, const u8 *bssid,
2138 u16 stype, u16 reason,
2139 bool send_frame, u8 *frame_buf);
2142 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0),
2143 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1),
2144 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2),
2147 int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer,
2149 struct ieee80211_scan_ies *ie_desc,
2150 const u8 *ie, size_t ie_len,
2151 u8 bands_used, u32 *rate_masks,
2152 struct cfg80211_chan_def *chandef,
2154 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
2155 const u8 *src, const u8 *dst,
2157 struct ieee80211_channel *chan,
2158 const u8 *ssid, size_t ssid_len,
2159 const u8 *ie, size_t ie_len,
2161 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
2162 struct ieee802_11_elems *elems,
2163 enum nl80211_band band, u32 *basic_rates);
2164 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2165 enum ieee80211_smps_mode smps_mode);
2166 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
2167 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
2169 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
2170 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2172 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2173 const struct cfg80211_chan_def *chandef,
2174 u16 prot_mode, bool rifs_mode);
2175 void ieee80211_ie_build_wide_bw_cs(u8 *pos,
2176 const struct cfg80211_chan_def *chandef);
2177 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2179 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2180 const struct cfg80211_chan_def *chandef);
2181 u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype);
2182 u8 *ieee80211_ie_build_he_cap(u8 *pos,
2183 const struct ieee80211_sta_he_cap *he_cap,
2185 void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data *sdata,
2186 struct sk_buff *skb);
2187 u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef);
2188 int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
2189 const struct ieee80211_supported_band *sband,
2190 const u8 *srates, int srates_len, u32 *rates);
2191 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
2192 struct sk_buff *skb, bool need_basic,
2193 enum nl80211_band band);
2194 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
2195 struct sk_buff *skb, bool need_basic,
2196 enum nl80211_band band);
2197 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
2199 /* channel management */
2200 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2201 struct cfg80211_chan_def *chandef);
2202 bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
2203 const struct ieee80211_vht_operation *oper,
2204 const struct ieee80211_ht_operation *htop,
2205 struct cfg80211_chan_def *chandef);
2206 bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
2207 const struct ieee80211_he_operation *he_oper,
2208 struct cfg80211_chan_def *chandef);
2209 u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
2212 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
2213 const struct cfg80211_chan_def *chandef,
2214 enum ieee80211_chanctx_mode mode);
2216 ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
2217 const struct cfg80211_chan_def *chandef,
2218 enum ieee80211_chanctx_mode mode,
2219 bool radar_required);
2221 ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata);
2222 int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);
2225 ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
2226 const struct cfg80211_chan_def *chandef,
2228 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
2229 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
2230 void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
2232 int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2233 struct ieee80211_chanctx *ctx);
2235 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2236 struct ieee80211_chanctx *chanctx);
2237 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2238 struct ieee80211_chanctx *ctx);
2239 bool ieee80211_is_radar_required(struct ieee80211_local *local);
2241 void ieee80211_dfs_cac_timer(unsigned long data);
2242 void ieee80211_dfs_cac_timer_work(struct work_struct *work);
2243 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2244 void ieee80211_dfs_radar_detected_work(struct work_struct *work);
2245 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2246 struct cfg80211_csa_settings *csa_settings);
2248 bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs);
2249 bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n);
2250 const struct ieee80211_cipher_scheme *
2251 ieee80211_cs_get(struct ieee80211_local *local, u32 cipher,
2252 enum nl80211_iftype iftype);
2253 int ieee80211_cs_headroom(struct ieee80211_local *local,
2254 struct cfg80211_crypto_settings *crypto,
2255 enum nl80211_iftype iftype);
2256 void ieee80211_recalc_dtim(struct ieee80211_local *local,
2257 struct ieee80211_sub_if_data *sdata);
2258 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2259 const struct cfg80211_chan_def *chandef,
2260 enum ieee80211_chanctx_mode chanmode,
2262 int ieee80211_max_num_channels(struct ieee80211_local *local);
2263 enum nl80211_chan_width ieee80211_get_sta_bw(struct ieee80211_sta *sta);
2264 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2265 struct ieee80211_chanctx *ctx);
2268 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2269 const u8 *peer, u8 action_code, u8 dialog_token,
2270 u16 status_code, u32 peer_capability,
2271 bool initiator, const u8 *extra_ies,
2272 size_t extra_ies_len);
2273 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2274 const u8 *peer, enum nl80211_tdls_operation oper);
2275 void ieee80211_tdls_peer_del_work(struct work_struct *wk);
2276 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2277 const u8 *addr, u8 oper_class,
2278 struct cfg80211_chan_def *chandef);
2279 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2280 struct net_device *dev,
2282 void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
2283 void ieee80211_tdls_chsw_work(struct work_struct *wk);
2284 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
2285 const u8 *peer, u16 reason);
2286 const char *ieee80211_get_reason_code_string(u16 reason_code);
2288 extern const struct ethtool_ops ieee80211_ethtool_ops;
2290 u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw,
2291 struct ieee80211_vif *vif,
2292 struct ieee80211_sta *pubsta,
2294 #ifdef CONFIG_MAC80211_NOINLINE
2295 #define debug_noinline noinline
2297 #define debug_noinline
2300 #endif /* IEEE80211_I_H */