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_UNICAST BIT(1)
168 #define IEEE80211_TX_PS_BUFFERED BIT(2)
170 struct ieee80211_tx_data {
172 struct sk_buff_head skbs;
173 struct ieee80211_local *local;
174 struct ieee80211_sub_if_data *sdata;
175 struct sta_info *sta;
176 struct ieee80211_key *key;
177 struct ieee80211_tx_rate rate;
183 typedef unsigned __bitwise ieee80211_rx_result;
184 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
185 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
186 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
187 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
190 * enum ieee80211_packet_rx_flags - packet RX flags
191 * @IEEE80211_RX_AMSDU: a-MSDU packet
192 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
193 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
195 * These are per-frame flags that are attached to a frame in the
196 * @rx_flags field of &struct ieee80211_rx_status.
198 enum ieee80211_packet_rx_flags {
199 IEEE80211_RX_AMSDU = BIT(3),
200 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
201 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
205 * enum ieee80211_rx_flags - RX data flags
207 * @IEEE80211_RX_CMNTR: received on cooked monitor already
208 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
209 * to cfg80211_report_obss_beacon().
211 * These flags are used across handling multiple interfaces
212 * for a single frame.
214 enum ieee80211_rx_flags {
215 IEEE80211_RX_CMNTR = BIT(0),
216 IEEE80211_RX_BEACON_REPORTED = BIT(1),
219 struct ieee80211_rx_data {
220 struct list_head *list;
222 struct ieee80211_local *local;
223 struct ieee80211_sub_if_data *sdata;
224 struct sta_info *sta;
225 struct ieee80211_key *key;
230 * Index into sequence numbers array, 0..16
231 * since the last (16) is used for non-QoS,
232 * will be 16 on non-QoS frames.
237 * Index into the security IV/PN arrays, 0..16
238 * since the last (16) is used for CCMP-encrypted
239 * management frames, will be set to 16 on mgmt
240 * frames and 0 on non-QoS frames.
248 struct ieee80211_csa_settings {
249 const u16 *counter_offsets_beacon;
250 const u16 *counter_offsets_presp;
252 int n_counter_offsets_beacon;
253 int n_counter_offsets_presp;
260 int head_len, tail_len;
261 struct ieee80211_meshconf_ie *meshconf;
262 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
263 u8 cntdwn_current_counter;
264 struct rcu_head rcu_head;
268 struct rcu_head rcu_head;
270 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
274 struct fils_discovery_data {
275 struct rcu_head rcu_head;
280 struct unsol_bcast_probe_resp_data {
281 struct rcu_head rcu_head;
287 /* yes, this looks ugly, but guarantees that we can later use
289 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
290 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
291 __aligned(__alignof__(unsigned long));
292 struct sk_buff_head bc_buf;
293 atomic_t num_sta_ps; /* number of stations in PS mode */
298 struct ieee80211_if_ap {
299 struct beacon_data __rcu *beacon;
300 struct probe_resp __rcu *probe_resp;
301 struct fils_discovery_data __rcu *fils_discovery;
302 struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp;
304 /* to be used after channel switch. */
305 struct cfg80211_beacon_data *next_beacon;
306 struct list_head vlans; /* write-protected with RTNL and local->mtx */
309 atomic_t num_mcast_sta; /* number of stations receiving multicast */
311 bool multicast_to_unicast;
314 struct ieee80211_if_vlan {
315 struct list_head list; /* write-protected with RTNL and local->mtx */
317 /* used for all tx if the VLAN is configured to 4-addr mode */
318 struct sta_info __rcu *sta;
319 atomic_t num_mcast_sta; /* number of stations receiving multicast */
323 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
324 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
325 __u32 fwded_frames; /* Mesh total forwarded frames */
326 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
327 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
328 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
331 #define PREQ_Q_F_START 0x1
332 #define PREQ_Q_F_REFRESH 0x2
333 struct mesh_preq_queue {
334 struct list_head list;
339 struct ieee80211_roc_work {
340 struct list_head list;
342 struct ieee80211_sub_if_data *sdata;
344 struct ieee80211_channel *chan;
346 bool started, abort, hw_begun, notified;
349 unsigned long start_time;
351 u32 duration, req_duration;
352 struct sk_buff *frame;
353 u64 cookie, mgmt_tx_cookie;
354 enum ieee80211_roc_type type;
357 /* flags used in struct ieee80211_if_managed.flags */
358 enum ieee80211_sta_flags {
359 IEEE80211_STA_CONNECTION_POLL = BIT(1),
360 IEEE80211_STA_CONTROL_PORT = BIT(2),
361 IEEE80211_STA_DISABLE_HT = BIT(4),
362 IEEE80211_STA_MFP_ENABLED = BIT(6),
363 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
364 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
365 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
366 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
367 IEEE80211_STA_DISABLE_VHT = BIT(11),
368 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
369 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
370 IEEE80211_STA_DISABLE_WMM = BIT(14),
371 IEEE80211_STA_ENABLE_RRM = BIT(15),
372 IEEE80211_STA_DISABLE_HE = BIT(16),
375 struct ieee80211_mgd_auth_data {
376 struct cfg80211_bss *bss;
377 unsigned long timeout;
379 u16 algorithm, expected_transaction;
381 u8 key[WLAN_KEY_LEN_WEP104];
385 bool timeout_started;
387 u16 sae_trans, sae_status;
392 struct ieee80211_mgd_assoc_data {
393 struct cfg80211_bss *bss;
394 const u8 *supp_rates;
396 unsigned long timeout;
400 u8 prev_bssid[ETH_ALEN];
401 u8 ssid[IEEE80211_MAX_SSID_LEN];
407 bool timeout_started;
411 struct ieee80211_vht_cap ap_vht_cap;
413 u8 fils_nonces[2 * FILS_NONCE_LEN];
414 u8 fils_kek[FILS_MAX_KEK_LEN];
421 struct ieee80211_sta_tx_tspec {
422 /* timestamp of the first packet in the time slice */
423 unsigned long time_slice_start;
425 u32 admitted_time; /* in usecs, unlike over the air */
427 s8 up; /* signed to be able to invalidate with -1 during teardown */
429 /* consumed TX time in microseconds in the time slice */
430 u32 consumed_tx_time;
432 TX_TSPEC_ACTION_NONE = 0,
433 TX_TSPEC_ACTION_DOWNGRADE,
434 TX_TSPEC_ACTION_STOP_DOWNGRADE,
439 DECLARE_EWMA(beacon_signal, 4, 4)
441 struct ieee80211_if_managed {
442 struct timer_list timer;
443 struct timer_list conn_mon_timer;
444 struct timer_list bcn_mon_timer;
445 struct timer_list chswitch_timer;
446 struct work_struct monitor_work;
447 struct work_struct chswitch_work;
448 struct work_struct beacon_connection_loss_work;
449 struct work_struct csa_connection_drop_work;
451 unsigned long beacon_timeout;
452 unsigned long probe_timeout;
453 int probe_send_count;
454 bool nullfunc_failed;
455 u8 connection_loss:1,
459 struct cfg80211_bss *associated;
460 struct ieee80211_mgd_auth_data *auth_data;
461 struct ieee80211_mgd_assoc_data *assoc_data;
463 u8 bssid[ETH_ALEN] __aligned(2);
465 bool powersave; /* powersave requested for this iface */
466 bool broken_ap; /* AP is broken -- turn off powersave */
469 enum ieee80211_smps_mode req_smps, /* requested smps mode */
470 driver_smps_mode; /* smps mode request */
472 struct work_struct request_smps_work;
476 bool csa_waiting_bcn;
477 bool csa_ignored_same_chan;
479 bool beacon_crc_valid;
483 bool status_received;
487 IEEE80211_MFP_DISABLED,
488 IEEE80211_MFP_OPTIONAL,
489 IEEE80211_MFP_REQUIRED
490 } mfp; /* management frame protection */
493 * Bitmask of enabled u-apsd queues,
494 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
497 unsigned int uapsd_queues;
500 * Maximum number of buffered frames AP can deliver during a
501 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
502 * Needs a new association to take effect.
504 unsigned int uapsd_max_sp_len;
506 int wmm_last_param_set;
507 int mu_edca_last_param_set;
513 struct ewma_beacon_signal ave_beacon_signal;
516 * Number of Beacon frames used in ave_beacon_signal. This can be used
517 * to avoid generating less reliable cqm events that would be based
518 * only on couple of received frames.
520 unsigned int count_beacon_signal;
522 /* Number of times beacon loss was invoked. */
523 unsigned int beacon_loss_count;
526 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
527 * that triggered a cqm event. 0 indicates that no event has been
528 * generated for the current association.
530 int last_cqm_event_signal;
533 * State variables for keeping track of RSSI of the AP currently
534 * connected to and informing driver when RSSI has gone
535 * below/above a certain threshold.
537 int rssi_min_thold, rssi_max_thold;
538 int last_ave_beacon_signal;
540 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
541 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
542 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
543 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
544 struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */
545 struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */
548 u8 tdls_peer[ETH_ALEN] __aligned(2);
549 struct delayed_work tdls_peer_del_work;
550 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
551 struct sk_buff *teardown_skb; /* A copy to send through the AP */
552 spinlock_t teardown_lock; /* To lock changing teardown_skb */
553 bool tdls_chan_switch_prohibited;
554 bool tdls_wider_bw_prohibited;
556 /* WMM-AC TSPEC support */
557 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
558 /* Use a separate work struct so that we can do something here
559 * while the sdata->work is flushing the queues, for example.
560 * otherwise, in scenarios where we hardly get any traffic out
561 * on the BE queue, but there's a lot of VO traffic, we might
562 * get stuck in a downgraded situation and flush takes forever.
564 struct delayed_work tx_tspec_wk;
566 /* Information elements from the last transmitted (Re)Association
570 size_t assoc_req_ies_len;
573 struct ieee80211_if_ibss {
574 struct timer_list timer;
575 struct work_struct csa_connection_drop_work;
577 unsigned long last_scan_completed;
586 bool userspace_handles_dfs;
588 u8 bssid[ETH_ALEN] __aligned(2);
589 u8 ssid[IEEE80211_MAX_SSID_LEN];
592 struct cfg80211_chan_def chandef;
594 unsigned long ibss_join_req;
595 /* probe response/beacon for IBSS */
596 struct beacon_data __rcu *presp;
598 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
599 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
601 spinlock_t incomplete_lock;
602 struct list_head incomplete_stations;
605 IEEE80211_IBSS_MLME_SEARCH,
606 IEEE80211_IBSS_MLME_JOINED,
611 * struct ieee80211_if_ocb - OCB mode state
613 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
614 * @wrkq_flags: OCB deferred task action
615 * @incomplete_lock: delayed STA insertion lock
616 * @incomplete_stations: list of STAs waiting for delayed insertion
617 * @joined: indication if the interface is connected to an OCB network
619 struct ieee80211_if_ocb {
620 struct timer_list housekeeping_timer;
621 unsigned long wrkq_flags;
623 spinlock_t incomplete_lock;
624 struct list_head incomplete_stations;
630 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
632 * these declarations define the interface, which enables
633 * vendor-specific mesh synchronization
636 struct ieee802_11_elems;
637 struct ieee80211_mesh_sync_ops {
638 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
640 struct ieee80211_mgmt *mgmt,
641 struct ieee802_11_elems *elems,
642 struct ieee80211_rx_status *rx_status);
644 /* should be called with beacon_data under RCU read lock */
645 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata,
646 struct beacon_data *beacon);
647 /* add other framework functions here */
650 struct mesh_csa_settings {
651 struct rcu_head rcu_head;
652 struct cfg80211_csa_settings settings;
655 struct ieee80211_if_mesh {
656 struct timer_list housekeeping_timer;
657 struct timer_list mesh_path_timer;
658 struct timer_list mesh_path_root_timer;
660 unsigned long wrkq_flags;
661 unsigned long mbss_changed;
663 bool userspace_handles_dfs;
665 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
667 /* Active Path Selection Protocol Identifier */
669 /* Active Path Selection Metric Identifier */
671 /* Congestion Control Mode Identifier */
673 /* Synchronization Protocol Identifier */
675 /* Authentication Protocol Identifier */
677 /* Local mesh Sequence Number */
679 /* Last used PREQ ID */
682 /* Timestamp of last SN update */
683 unsigned long last_sn_update;
684 /* Time when it's ok to send next PERR */
685 unsigned long next_perr;
686 /* Timestamp of last PREQ sent */
687 unsigned long last_preq;
688 struct mesh_rmc *rmc;
689 spinlock_t mesh_preq_queue_lock;
690 struct mesh_preq_queue preq_queue;
692 struct mesh_stats mshstats;
693 struct mesh_config mshcfg;
694 atomic_t estab_plinks;
696 bool accepting_plinks;
698 struct beacon_data __rcu *beacon;
702 IEEE80211_MESH_SEC_NONE = 0x0,
703 IEEE80211_MESH_SEC_AUTHED = 0x1,
704 IEEE80211_MESH_SEC_SECURED = 0x2,
707 /* Extensible Synchronization Framework */
708 const struct ieee80211_mesh_sync_ops *sync_ops;
709 s64 sync_offset_clockdrift_max;
710 spinlock_t sync_offset_lock;
711 /* mesh power save */
712 enum nl80211_mesh_power_mode nonpeer_pm;
713 int ps_peers_light_sleep;
714 int ps_peers_deep_sleep;
716 /* Channel Switching Support */
717 struct mesh_csa_settings __rcu *csa;
719 IEEE80211_MESH_CSA_ROLE_NONE,
720 IEEE80211_MESH_CSA_ROLE_INIT,
721 IEEE80211_MESH_CSA_ROLE_REPEATER,
726 /* offset from skb->data while building IE */
729 struct mesh_table *mesh_paths;
730 struct mesh_table *mpp_paths; /* Store paths for MPP&MAP */
731 int mesh_paths_generation;
732 int mpp_paths_generation;
735 #ifdef CONFIG_MAC80211_MESH
736 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
737 do { (msh)->mshstats.name++; } while (0)
739 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
744 * enum ieee80211_sub_if_data_flags - virtual interface flags
746 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
747 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
748 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
749 * associated stations and deliver multicast frames both
750 * back to wireless media and to the local net stack.
751 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
752 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
754 enum ieee80211_sub_if_data_flags {
755 IEEE80211_SDATA_ALLMULTI = BIT(0),
756 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
757 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
758 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
759 IEEE80211_SDATA_IN_DRIVER = BIT(5),
763 * enum ieee80211_sdata_state_bits - virtual interface state bits
764 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
765 * mirrors netif_running() but is separate for interface type
766 * change handling while the interface is up
767 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
768 * mode, so queues are stopped
769 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
770 * to offchannel, reset when offchannel returns
772 enum ieee80211_sdata_state_bits {
774 SDATA_STATE_OFFCHANNEL,
775 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
779 * enum ieee80211_chanctx_mode - channel context configuration mode
781 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
782 * multiple interfaces
783 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
784 * only by a single interface. This can be used for example for
785 * non-fixed channel IBSS.
787 enum ieee80211_chanctx_mode {
788 IEEE80211_CHANCTX_SHARED,
789 IEEE80211_CHANCTX_EXCLUSIVE
793 * enum ieee80211_chanctx_replace_state - channel context replacement state
795 * This is used for channel context in-place reservations that require channel
796 * context switch/swap.
798 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
799 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
800 * by a (not yet registered) channel context pointed by %replace_ctx.
801 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
802 * replaces an existing channel context pointed to by %replace_ctx.
804 enum ieee80211_chanctx_replace_state {
805 IEEE80211_CHANCTX_REPLACE_NONE,
806 IEEE80211_CHANCTX_WILL_BE_REPLACED,
807 IEEE80211_CHANCTX_REPLACES_OTHER,
810 struct ieee80211_chanctx {
811 struct list_head list;
812 struct rcu_head rcu_head;
814 struct list_head assigned_vifs;
815 struct list_head reserved_vifs;
817 enum ieee80211_chanctx_replace_state replace_state;
818 struct ieee80211_chanctx *replace_ctx;
820 enum ieee80211_chanctx_mode mode;
823 struct ieee80211_chanctx_conf conf;
826 struct mac80211_qos_map {
827 struct cfg80211_qos_map qos_map;
828 struct rcu_head rcu_head;
831 enum txq_info_flags {
834 IEEE80211_TXQ_NO_AMSDU,
835 IEEE80211_TXQ_STOP_NETIF_TX,
839 * struct txq_info - per tid queue
841 * @tin: contains packets split into multiple flows
842 * @def_flow: used as a fallback flow when a packet destined to @tin hashes to
843 * a fq_flow which is already owned by a different tin
844 * @def_cvars: codel vars for @def_flow
845 * @frags: used to keep fragments created after dequeue
846 * @schedule_order: used with ieee80211_local->active_txqs
847 * @schedule_round: counter to prevent infinite loops on TXQ scheduling
851 struct codel_vars def_cvars;
852 struct codel_stats cstats;
853 struct sk_buff_head frags;
854 struct list_head schedule_order;
859 struct ieee80211_txq txq;
862 struct ieee80211_if_mntr {
864 u8 mu_follow_addr[ETH_ALEN] __aligned(2);
866 struct list_head list;
870 * struct ieee80211_if_nan - NAN state
872 * @conf: current NAN configuration
873 * @func_ids: a bitmap of available instance_id's
875 struct ieee80211_if_nan {
876 struct cfg80211_nan_conf conf;
878 /* protects function_inst_ids */
879 spinlock_t func_lock;
880 struct idr function_inst_ids;
883 struct ieee80211_sub_if_data {
884 struct list_head list;
886 struct wireless_dev wdev;
889 struct list_head key_list;
891 /* count for keys needing tailroom space allocation */
892 int crypto_tx_tailroom_needed_cnt;
893 int crypto_tx_tailroom_pending_dec;
894 struct delayed_work dec_tailroom_needed_wk;
896 struct net_device *dev;
897 struct ieee80211_local *local;
905 /* Fragment table for host-based reassembly */
906 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
907 unsigned int fragment_next;
909 /* TID bitmap for NoAck policy */
912 /* bit field of ACM bits (BIT(802.1D tag)) */
915 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS +
916 NUM_DEFAULT_MGMT_KEYS +
917 NUM_DEFAULT_BEACON_KEYS];
918 struct ieee80211_key __rcu *default_unicast_key;
919 struct ieee80211_key __rcu *default_multicast_key;
920 struct ieee80211_key __rcu *default_mgmt_key;
921 struct ieee80211_key __rcu *default_beacon_key;
924 __be16 control_port_protocol;
925 bool control_port_no_encrypt;
926 bool control_port_no_preauth;
927 bool control_port_over_nl80211;
928 int encrypt_headroom;
930 atomic_t num_tx_queued;
931 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
932 struct mac80211_qos_map __rcu *qos_map;
934 struct work_struct csa_finalize_work;
935 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
936 struct cfg80211_chan_def csa_chandef;
938 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
939 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
941 /* context reservation -- protected with chanctx_mtx */
942 struct ieee80211_chanctx *reserved_chanctx;
943 struct cfg80211_chan_def reserved_chandef;
944 bool reserved_radar_required;
947 /* used to reconfigure hardware SM PS */
948 struct work_struct recalc_smps;
950 struct work_struct work;
951 struct sk_buff_head skb_queue;
954 enum ieee80211_smps_mode smps_mode;
956 int user_power_level; /* in dBm */
957 int ap_power_level; /* in dBm */
960 struct delayed_work dfs_cac_timer_work;
963 * AP this belongs to: self in AP mode and
964 * corresponding AP in VLAN mode, NULL for
965 * all others (might be needed later in IBSS)
967 struct ieee80211_if_ap *bss;
969 /* bitmap of allowed (non-MCS) rate indexes for rate control */
970 u32 rc_rateidx_mask[NUM_NL80211_BANDS];
972 bool rc_has_mcs_mask[NUM_NL80211_BANDS];
973 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
975 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
976 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
978 /* Beacon frame (non-MCS) rate (as a bitmap) */
979 u32 beacon_rateidx_mask[NUM_NL80211_BANDS];
980 bool beacon_rate_set;
983 struct ieee80211_if_ap ap;
984 struct ieee80211_if_vlan vlan;
985 struct ieee80211_if_managed mgd;
986 struct ieee80211_if_ibss ibss;
987 struct ieee80211_if_mesh mesh;
988 struct ieee80211_if_ocb ocb;
989 struct ieee80211_if_mntr mntr;
990 struct ieee80211_if_nan nan;
993 #ifdef CONFIG_MAC80211_DEBUGFS
995 struct dentry *subdir_stations;
996 struct dentry *default_unicast_key;
997 struct dentry *default_multicast_key;
998 struct dentry *default_mgmt_key;
999 struct dentry *default_beacon_key;
1003 /* must be last, dynamically sized area in this! */
1004 struct ieee80211_vif vif;
1008 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
1010 return container_of(p, struct ieee80211_sub_if_data, vif);
1013 static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
1014 __acquires(&sdata->wdev.mtx)
1016 mutex_lock(&sdata->wdev.mtx);
1017 __acquire(&sdata->wdev.mtx);
1020 static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
1021 __releases(&sdata->wdev.mtx)
1023 mutex_unlock(&sdata->wdev.mtx);
1024 __release(&sdata->wdev.mtx);
1027 #define sdata_dereference(p, sdata) \
1028 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
1031 sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
1033 lockdep_assert_held(&sdata->wdev.mtx);
1037 ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
1039 switch (chandef->width) {
1040 case NL80211_CHAN_WIDTH_5:
1042 case NL80211_CHAN_WIDTH_10:
1050 ieee80211_vif_get_shift(struct ieee80211_vif *vif)
1052 struct ieee80211_chanctx_conf *chanctx_conf;
1056 chanctx_conf = rcu_dereference(vif->chanctx_conf);
1058 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
1065 IEEE80211_RX_MSG = 1,
1066 IEEE80211_TX_STATUS_MSG = 2,
1069 enum queue_stop_reason {
1070 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1071 IEEE80211_QUEUE_STOP_REASON_PS,
1072 IEEE80211_QUEUE_STOP_REASON_CSA,
1073 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1074 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1075 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1076 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1077 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1078 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1079 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1080 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE,
1082 IEEE80211_QUEUE_STOP_REASONS,
1085 #ifdef CONFIG_MAC80211_LEDS
1086 struct tpt_led_trigger {
1088 const struct ieee80211_tpt_blink *blink_table;
1089 unsigned int blink_table_len;
1090 struct timer_list timer;
1091 struct ieee80211_local *local;
1092 unsigned long prev_traffic;
1093 unsigned long tx_bytes, rx_bytes;
1094 unsigned int active, want;
1100 * mac80211 scan flags - currently active scan mode
1102 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1103 * well be on the operating channel
1104 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1105 * determine if we are on the operating channel or not
1106 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1107 * channel. This should not interrupt normal traffic.
1108 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1109 * that the scan completed.
1110 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1111 * a scan complete for an aborted scan.
1112 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1118 SCAN_ONCHANNEL_SCANNING,
1125 * enum mac80211_scan_state - scan state machine states
1127 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1128 * determines if we should keep on scanning or switch back to the
1130 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1131 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1132 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1134 * @SCAN_RESUME: Resume the scan and scan the next channel
1135 * @SCAN_ABORT: Abort the scan and go back to operating channel
1137 enum mac80211_scan_state {
1146 DECLARE_STATIC_KEY_FALSE(aql_disable);
1148 struct ieee80211_local {
1149 /* embed the driver visible part.
1150 * don't cast (use the static inlines below), but we keep
1151 * it first anyway so they become a no-op */
1152 struct ieee80211_hw hw;
1155 struct codel_vars *cvars;
1156 struct codel_params cparams;
1158 /* protects active_txqs and txqi->schedule_order */
1159 spinlock_t active_txq_lock[IEEE80211_NUM_ACS];
1160 struct list_head active_txqs[IEEE80211_NUM_ACS];
1161 u16 schedule_round[IEEE80211_NUM_ACS];
1164 u32 aql_txq_limit_low[IEEE80211_NUM_ACS];
1165 u32 aql_txq_limit_high[IEEE80211_NUM_ACS];
1167 atomic_t aql_total_pending_airtime;
1169 const struct ieee80211_ops *ops;
1172 * private workqueue to mac80211. mac80211 makes this accessible
1173 * via ieee80211_queue_work()
1175 struct workqueue_struct *workqueue;
1177 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1178 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1179 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1180 spinlock_t queue_stop_reason_lock;
1183 int monitors, cooked_mntrs;
1184 /* number of interfaces with corresponding FIF_ flags */
1185 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1188 bool rx_mcast_action_reg;
1189 unsigned int filter_flags; /* FIF_* */
1191 bool wiphy_ciphers_allocated;
1195 /* protects the aggregated multicast list and filter calls */
1196 spinlock_t filter_lock;
1198 /* used for uploading changed mc list */
1199 struct work_struct reconfig_filter;
1201 /* aggregated multicast list */
1202 struct netdev_hw_addr_list mc_list;
1204 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1207 * suspended is true if we finished all the suspend _and_ we have
1208 * not yet come up from resume. This is to be used by mac80211
1209 * to ensure driver sanity during suspend and mac80211's own
1210 * sanity. It can eventually be used for WoW as well.
1215 * Resuming is true while suspended, but when we're reprogramming the
1216 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1217 * again even though some other parts of the stack are still suspended
1218 * and we still drop received frames to avoid waking the stack.
1223 * quiescing is true during the suspend process _only_ to
1224 * ease timer cancelling etc.
1228 /* device is started */
1231 /* device is during a HW reconfig */
1234 /* wowlan is enabled -- don't reconfig on resume */
1237 struct work_struct radar_detected_work;
1239 /* number of RX chains the hardware has */
1242 /* bitmap of which sbands were copied */
1245 int tx_headroom; /* required headroom for hardware/radiotap */
1247 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1248 * added to skb_queue will be processed, but frames in
1249 * skb_queue_unreliable may be dropped if the total length of these
1250 * queues increases over the limit. */
1251 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1252 struct tasklet_struct tasklet;
1253 struct sk_buff_head skb_queue;
1254 struct sk_buff_head skb_queue_unreliable;
1256 spinlock_t rx_path_lock;
1260 * The mutex only protects the list, hash table and
1261 * counter, reads are done with RCU.
1263 struct mutex sta_mtx;
1264 spinlock_t tim_lock;
1265 unsigned long num_sta;
1266 struct list_head sta_list;
1267 struct rhltable sta_hash;
1268 struct timer_list sta_cleanup;
1271 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1272 struct tasklet_struct tx_pending_tasklet;
1273 struct tasklet_struct wake_txqs_tasklet;
1275 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1277 /* number of interfaces with allmulti RX */
1278 atomic_t iff_allmultis;
1280 struct rate_control_ref *rate_ctrl;
1282 struct arc4_ctx wep_tx_ctx;
1283 struct arc4_ctx wep_rx_ctx;
1287 struct list_head interfaces;
1288 struct list_head mon_list; /* only that are IFF_UP && !cooked */
1289 struct mutex iflist_mtx;
1292 * Key mutex, protects sdata's key_list and sta_info's
1293 * key pointers and ptk_idx (write access, they're RCU.)
1295 struct mutex key_mtx;
1297 /* mutex for scan and work locking */
1300 /* Scanning and BSS list */
1301 unsigned long scanning;
1302 struct cfg80211_ssid scan_ssid;
1303 struct cfg80211_scan_request *int_scan_req;
1304 struct cfg80211_scan_request __rcu *scan_req;
1305 struct ieee80211_scan_request *hw_scan_req;
1306 struct cfg80211_chan_def scan_chandef;
1307 enum nl80211_band hw_scan_band;
1308 int scan_channel_idx;
1310 int hw_scan_ies_bufsize;
1311 struct cfg80211_scan_info scan_info;
1313 struct work_struct sched_scan_stopped_work;
1314 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1315 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1316 u8 scan_addr[ETH_ALEN];
1318 unsigned long leave_oper_channel_time;
1319 enum mac80211_scan_state next_scan_state;
1320 struct delayed_work scan_work;
1321 struct ieee80211_sub_if_data __rcu *scan_sdata;
1322 /* For backward compatibility only -- do not use */
1323 struct cfg80211_chan_def _oper_chandef;
1325 /* Temporary remain-on-channel for off-channel operations */
1326 struct ieee80211_channel *tmp_channel;
1328 /* channel contexts */
1329 struct list_head chanctx_list;
1330 struct mutex chanctx_mtx;
1332 #ifdef CONFIG_MAC80211_LEDS
1333 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1334 struct led_trigger tpt_led;
1335 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1336 atomic_t radio_led_active, tpt_led_active;
1337 struct tpt_led_trigger *tpt_led_trigger;
1340 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1342 /* dot11CountersTable */
1343 u32 dot11TransmittedFragmentCount;
1344 u32 dot11MulticastTransmittedFrameCount;
1345 u32 dot11FailedCount;
1346 u32 dot11RetryCount;
1347 u32 dot11MultipleRetryCount;
1348 u32 dot11FrameDuplicateCount;
1349 u32 dot11ReceivedFragmentCount;
1350 u32 dot11MulticastReceivedFrameCount;
1351 u32 dot11TransmittedFrameCount;
1353 /* TX/RX handler statistics */
1354 unsigned int tx_handlers_drop;
1355 unsigned int tx_handlers_queued;
1356 unsigned int tx_handlers_drop_wep;
1357 unsigned int tx_handlers_drop_not_assoc;
1358 unsigned int tx_handlers_drop_unauth_port;
1359 unsigned int rx_handlers_drop;
1360 unsigned int rx_handlers_queued;
1361 unsigned int rx_handlers_drop_nullfunc;
1362 unsigned int rx_handlers_drop_defrag;
1363 unsigned int tx_expand_skb_head;
1364 unsigned int tx_expand_skb_head_cloned;
1365 unsigned int rx_expand_skb_head_defrag;
1366 unsigned int rx_handlers_fragments;
1367 unsigned int tx_status_drop;
1368 #define I802_DEBUG_INC(c) (c)++
1369 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1370 #define I802_DEBUG_INC(c) do { } while (0)
1371 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1374 int total_ps_buffered; /* total number of all buffered unicast and
1375 * multicast packets for power saving stations
1380 * PS can only be enabled when we have exactly one managed
1381 * interface (and monitors) in PS, this then points there.
1383 struct ieee80211_sub_if_data *ps_sdata;
1384 struct work_struct dynamic_ps_enable_work;
1385 struct work_struct dynamic_ps_disable_work;
1386 struct timer_list dynamic_ps_timer;
1387 struct notifier_block ifa_notifier;
1388 struct notifier_block ifa6_notifier;
1391 * The dynamic ps timeout configured from user space via WEXT -
1392 * this will override whatever chosen by mac80211 internally.
1394 int dynamic_ps_forced_timeout;
1396 int user_power_level; /* in dBm, for all interfaces */
1398 enum ieee80211_smps_mode smps_mode;
1400 struct work_struct restart_work;
1402 #ifdef CONFIG_MAC80211_DEBUGFS
1403 struct local_debugfsdentries {
1404 struct dentry *rcdir;
1405 struct dentry *keys;
1407 bool force_tx_status;
1411 * Remain-on-channel support
1413 struct delayed_work roc_work;
1414 struct list_head roc_list;
1415 struct work_struct hw_roc_start, hw_roc_done;
1416 unsigned long hw_roc_start_time;
1417 u64 roc_cookie_counter;
1419 struct idr ack_status_frames;
1420 spinlock_t ack_status_lock;
1422 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1424 /* virtual monitor interface */
1425 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1426 struct cfg80211_chan_def monitor_chandef;
1428 /* extended capabilities provided by mac80211 */
1431 /* TDLS channel switch */
1432 struct work_struct tdls_chsw_work;
1433 struct sk_buff_head skb_queue_tdls_chsw;
1436 static inline struct ieee80211_sub_if_data *
1437 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1439 return netdev_priv(dev);
1442 static inline struct ieee80211_sub_if_data *
1443 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1445 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1448 static inline struct ieee80211_supported_band *
1449 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata)
1451 struct ieee80211_local *local = sdata->local;
1452 struct ieee80211_chanctx_conf *chanctx_conf;
1453 enum nl80211_band band;
1456 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1458 if (WARN_ON_ONCE(!chanctx_conf)) {
1463 band = chanctx_conf->def.chan->band;
1466 return local->hw.wiphy->bands[band];
1469 /* this struct holds the value parsing from channel switch IE */
1470 struct ieee80211_csa_ie {
1471 struct cfg80211_chan_def chandef;
1477 u32 max_switch_time;
1480 /* Parsed Information Elements */
1481 struct ieee802_11_elems {
1485 /* pointers to IEs */
1486 const struct ieee80211_tdls_lnkie *lnk_id;
1487 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1488 const u8 *ext_capab;
1490 const u8 *supp_rates;
1491 const u8 *ds_params;
1492 const struct ieee80211_tim_ie *tim;
1493 const u8 *challenge;
1497 const u8 *ext_supp_rates;
1499 const u8 *wmm_param;
1500 const struct ieee80211_ht_cap *ht_cap_elem;
1501 const struct ieee80211_ht_operation *ht_operation;
1502 const struct ieee80211_vht_cap *vht_cap_elem;
1503 const struct ieee80211_vht_operation *vht_operation;
1504 const struct ieee80211_meshconf_ie *mesh_config;
1506 const struct ieee80211_he_operation *he_operation;
1507 const struct ieee80211_he_spr *he_spr;
1508 const struct ieee80211_mu_edca_param_set *mu_edca_param_set;
1509 const struct ieee80211_he_6ghz_capa *he_6ghz_capa;
1510 const u8 *uora_element;
1513 const __le16 *awake_window;
1517 const struct ieee80211_rann_ie *rann;
1518 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1519 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1520 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1521 const u8 *max_channel_switch_time;
1522 const u8 *country_elem;
1523 const u8 *pwr_constr_elem;
1524 const u8 *cisco_dtpc_elem;
1525 const struct ieee80211_timeout_interval_ie *timeout_int;
1526 const u8 *opmode_notif;
1527 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1528 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1529 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie;
1530 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie;
1531 const struct ieee80211_bssid_index *bssid_index;
1532 u8 max_bssid_indicator;
1535 const struct ieee80211_addba_ext_ie *addba_ext_ie;
1536 const struct ieee80211_s1g_cap *s1g_capab;
1537 const struct ieee80211_s1g_oper_ie *s1g_oper;
1538 const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat;
1539 const struct ieee80211_aid_response_ie *aid_resp;
1541 /* length of them, respectively */
1549 u8 ext_supp_rates_len;
1558 u8 country_elem_len;
1561 /* whether a parse error occurred while retrieving these elements */
1565 static inline struct ieee80211_local *hw_to_local(
1566 struct ieee80211_hw *hw)
1568 return container_of(hw, struct ieee80211_local, hw);
1571 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1573 return container_of(txq, struct txq_info, txq);
1576 static inline bool txq_has_queue(struct ieee80211_txq *txq)
1578 struct txq_info *txqi = to_txq_info(txq);
1580 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets);
1583 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1585 return ether_addr_equal(raddr, addr) ||
1586 is_broadcast_ether_addr(raddr);
1590 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1592 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1593 status->flag & RX_FLAG_MACTIME_END);
1594 return !!(status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END |
1595 RX_FLAG_MACTIME_PLCP_START));
1598 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
1599 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
1601 /* This function returns the number of multicast stations connected to this
1602 * interface. It returns -1 if that number is not tracked, that is for netdevs
1603 * not in AP or AP_VLAN mode or when using 4addr.
1606 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
1608 if (sdata->vif.type == NL80211_IFTYPE_AP)
1609 return atomic_read(&sdata->u.ap.num_mcast_sta);
1610 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
1611 return atomic_read(&sdata->u.vlan.num_mcast_sta);
1615 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1616 struct ieee80211_rx_status *status,
1617 unsigned int mpdu_len,
1618 unsigned int mpdu_offset);
1619 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1620 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1621 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1623 void ieee80211_configure_filter(struct ieee80211_local *local);
1624 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1626 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
1627 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1628 u64 *cookie, gfp_t gfp);
1630 void ieee80211_check_fast_rx(struct sta_info *sta);
1631 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1632 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1633 void ieee80211_clear_fast_rx(struct sta_info *sta);
1636 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1637 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1638 struct cfg80211_auth_request *req);
1639 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1640 struct cfg80211_assoc_request *req);
1641 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1642 struct cfg80211_deauth_request *req);
1643 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1644 struct cfg80211_disassoc_request *req);
1645 void ieee80211_send_pspoll(struct ieee80211_local *local,
1646 struct ieee80211_sub_if_data *sdata);
1647 void ieee80211_recalc_ps(struct ieee80211_local *local);
1648 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1649 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1650 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1651 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1652 struct sk_buff *skb);
1653 void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata,
1654 struct sk_buff *skb);
1655 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1656 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1657 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1658 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1659 __le16 fc, bool acked);
1660 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1661 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1662 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1663 void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
1664 u8 *bssid, u8 reason, bool tx);
1667 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1668 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1669 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1670 const u8 *bssid, const u8 *addr, u32 supp_rates);
1671 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1672 struct cfg80211_ibss_params *params);
1673 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1674 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1675 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1676 struct sk_buff *skb);
1677 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1678 struct cfg80211_csa_settings *csa_settings);
1679 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
1680 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1683 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1684 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1685 const u8 *bssid, const u8 *addr, u32 supp_rates);
1686 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1687 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1688 struct ocb_setup *setup);
1689 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1692 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1693 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1694 struct sk_buff *skb);
1695 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1696 struct cfg80211_csa_settings *csa_settings);
1697 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
1699 /* scan/BSS handling */
1700 void ieee80211_scan_work(struct work_struct *work);
1701 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1702 const u8 *ssid, u8 ssid_len,
1703 struct ieee80211_channel **channels,
1704 unsigned int n_channels,
1705 enum nl80211_bss_scan_width scan_width);
1706 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1707 struct cfg80211_scan_request *req);
1708 void ieee80211_scan_cancel(struct ieee80211_local *local);
1709 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1710 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1712 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1713 struct ieee80211_bss *
1714 ieee80211_bss_info_update(struct ieee80211_local *local,
1715 struct ieee80211_rx_status *rx_status,
1716 struct ieee80211_mgmt *mgmt,
1718 struct ieee80211_channel *channel);
1719 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1720 struct ieee80211_bss *bss);
1722 /* scheduled scan handling */
1724 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1725 struct cfg80211_sched_scan_request *req);
1726 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1727 struct cfg80211_sched_scan_request *req);
1728 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
1729 void ieee80211_sched_scan_end(struct ieee80211_local *local);
1730 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1732 /* off-channel/mgmt-tx */
1733 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1734 void ieee80211_offchannel_return(struct ieee80211_local *local);
1735 void ieee80211_roc_setup(struct ieee80211_local *local);
1736 void ieee80211_start_next_roc(struct ieee80211_local *local);
1737 void ieee80211_roc_purge(struct ieee80211_local *local,
1738 struct ieee80211_sub_if_data *sdata);
1739 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
1740 struct ieee80211_channel *chan,
1741 unsigned int duration, u64 *cookie);
1742 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1743 struct wireless_dev *wdev, u64 cookie);
1744 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
1745 struct cfg80211_mgmt_tx_params *params, u64 *cookie);
1746 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1747 struct wireless_dev *wdev, u64 cookie);
1749 /* channel switch handling */
1750 void ieee80211_csa_finalize_work(struct work_struct *work);
1751 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1752 struct cfg80211_csa_settings *params);
1754 /* interface handling */
1755 #define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
1756 NETIF_F_HW_CSUM | NETIF_F_SG | \
1757 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE)
1758 #define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM)
1759 #define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \
1760 MAC80211_SUPPORTED_FEATURES_RX)
1762 int ieee80211_iface_init(void);
1763 void ieee80211_iface_exit(void);
1764 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1765 unsigned char name_assign_type,
1766 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1767 struct vif_params *params);
1768 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1769 enum nl80211_iftype type);
1770 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1771 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1772 u32 ieee80211_idle_off(struct ieee80211_local *local);
1773 void ieee80211_recalc_idle(struct ieee80211_local *local);
1774 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1776 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1777 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
1778 int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1779 void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
1781 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1782 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
1784 void ieee80211_recalc_offload(struct ieee80211_local *local);
1786 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1788 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1792 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1793 void ieee80211_tx_pending(struct tasklet_struct *t);
1794 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1795 struct net_device *dev);
1796 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1797 struct net_device *dev);
1798 netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb,
1799 struct net_device *dev);
1800 void __ieee80211_subif_start_xmit(struct sk_buff *skb,
1801 struct net_device *dev,
1805 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1806 struct sk_buff_head *skbs);
1808 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
1809 struct sk_buff *skb, u32 info_flags);
1810 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
1811 struct ieee80211_supported_band *sband,
1812 int retry_count, int shift, bool send_to_cooked,
1813 struct ieee80211_tx_status *status);
1815 void ieee80211_check_fast_xmit(struct sta_info *sta);
1816 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
1817 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
1818 void ieee80211_clear_fast_xmit(struct sta_info *sta);
1819 int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
1820 const u8 *buf, size_t len,
1821 const u8 *dest, __be16 proto, bool unencrypted,
1823 int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev,
1824 const u8 *buf, size_t len);
1827 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1828 struct ieee80211_sta_ht_cap *ht_cap);
1829 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1830 struct ieee80211_supported_band *sband,
1831 const struct ieee80211_ht_cap *ht_cap_ie,
1832 struct sta_info *sta);
1833 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1834 const u8 *da, u16 tid,
1835 u16 initiator, u16 reason_code);
1836 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1837 enum ieee80211_smps_mode smps, const u8 *da,
1839 void ieee80211_request_smps_ap_work(struct work_struct *work);
1840 void ieee80211_request_smps_mgd_work(struct work_struct *work);
1841 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
1842 enum ieee80211_smps_mode smps_mode_new);
1844 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1845 u16 initiator, u16 reason, bool stop);
1846 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1847 u16 initiator, u16 reason, bool stop);
1848 void ___ieee80211_start_rx_ba_session(struct sta_info *sta,
1849 u8 dialog_token, u16 timeout,
1850 u16 start_seq_num, u16 ba_policy, u16 tid,
1851 u16 buf_size, bool tx, bool auto_seq,
1852 const struct ieee80211_addba_ext_ie *addbaext);
1853 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1854 enum ieee80211_agg_stop_reason reason);
1855 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1856 struct sta_info *sta,
1857 struct ieee80211_mgmt *mgmt, size_t len);
1858 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1859 struct sta_info *sta,
1860 struct ieee80211_mgmt *mgmt,
1862 void ieee80211_process_addba_request(struct ieee80211_local *local,
1863 struct sta_info *sta,
1864 struct ieee80211_mgmt *mgmt,
1867 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1868 enum ieee80211_agg_stop_reason reason);
1869 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1870 enum ieee80211_agg_stop_reason reason);
1871 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid,
1872 struct tid_ampdu_tx *tid_tx);
1873 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
1874 struct tid_ampdu_tx *tid_tx);
1875 void ieee80211_ba_session_work(struct work_struct *work);
1876 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1877 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1879 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1880 enum nl80211_smps_mode
1881 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps);
1885 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1886 struct ieee80211_supported_band *sband,
1887 const struct ieee80211_vht_cap *vht_cap_ie,
1888 struct sta_info *sta);
1889 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta);
1890 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
1891 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
1892 enum ieee80211_sta_rx_bandwidth
1893 ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
1894 enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta);
1895 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
1896 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
1897 struct ieee80211_mgmt *mgmt);
1898 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1899 struct sta_info *sta, u8 opmode,
1900 enum nl80211_band band);
1901 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1902 struct sta_info *sta, u8 opmode,
1903 enum nl80211_band band);
1904 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
1905 struct ieee80211_sta_vht_cap *vht_cap);
1906 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
1907 u16 vht_mask[NL80211_VHT_NSS_MAX]);
1908 enum nl80211_chan_width
1909 ieee80211_sta_rx_bw_to_chan_width(struct sta_info *sta);
1913 ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
1914 struct ieee80211_supported_band *sband,
1915 const u8 *he_cap_ie, u8 he_cap_len,
1916 const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
1917 struct sta_info *sta);
1919 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif,
1920 const struct ieee80211_he_spr *he_spr_ie_elem);
1923 ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif,
1924 const struct ieee80211_he_operation *he_op_ie_elem);
1927 void ieee80211_s1g_sta_rate_init(struct sta_info *sta);
1929 /* Spectrum management */
1930 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1931 struct ieee80211_mgmt *mgmt,
1934 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
1935 * @sdata: the sdata of the interface which has received the frame
1936 * @elems: parsed 802.11 elements received with the frame
1937 * @current_band: indicates the current band
1938 * @vht_cap_info: VHT capabilities of the transmitter
1939 * @sta_flags: contains information about own capabilities and restrictions
1940 * to decide which channel switch announcements can be accepted. Only the
1941 * following subset of &enum ieee80211_sta_flags are evaluated:
1942 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
1943 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
1944 * %IEEE80211_STA_DISABLE_160MHZ.
1945 * @bssid: the currently connected bssid (for reporting)
1946 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
1947 All of them will be filled with if success only.
1948 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
1950 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
1951 struct ieee802_11_elems *elems,
1952 enum nl80211_band current_band,
1954 u32 sta_flags, u8 *bssid,
1955 struct ieee80211_csa_ie *csa_ie);
1957 /* Suspend/resume and hw reconfiguration */
1958 int ieee80211_reconfig(struct ieee80211_local *local);
1959 void ieee80211_stop_device(struct ieee80211_local *local);
1961 int __ieee80211_suspend(struct ieee80211_hw *hw,
1962 struct cfg80211_wowlan *wowlan);
1964 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1966 struct ieee80211_local *local = hw_to_local(hw);
1968 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
1969 !test_bit(SCAN_COMPLETED, &local->scanning),
1970 "%s: resume with hardware scan still in progress\n",
1971 wiphy_name(hw->wiphy));
1973 return ieee80211_reconfig(hw_to_local(hw));
1976 /* utility functions/constants */
1977 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
1978 int ieee80211_frame_duration(enum nl80211_band band, size_t len,
1979 int rate, int erp, int short_preamble,
1981 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
1982 struct ieee80211_tx_queue_params *qparam,
1984 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1985 bool bss_notify, bool enable_qos);
1986 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
1987 struct sta_info *sta, struct sk_buff *skb);
1989 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1990 struct sk_buff *skb, int tid,
1991 enum nl80211_band band);
1993 /* sta_out needs to be checked for ERR_PTR() before using */
1994 int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
1995 struct sk_buff *skb,
1996 struct sta_info **sta_out);
1999 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2000 struct sk_buff *skb, int tid,
2001 enum nl80211_band band)
2004 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
2008 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
2009 struct sk_buff *skb, int tid)
2011 struct ieee80211_chanctx_conf *chanctx_conf;
2014 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
2015 if (WARN_ON(!chanctx_conf)) {
2021 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
2022 chanctx_conf->def.chan->band);
2026 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
2027 struct sk_buff *skb)
2029 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
2030 ieee80211_tx_skb_tid(sdata, skb, 7);
2033 u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
2034 struct ieee802_11_elems *elems,
2035 u64 filter, u32 crc, u8 *transmitter_bssid,
2037 static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
2039 struct ieee802_11_elems *elems,
2040 u8 *transmitter_bssid,
2043 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0,
2044 transmitter_bssid, bss_bssid);
2048 extern const int ieee802_1d_to_ac[8];
2050 static inline int ieee80211_ac_from_tid(int tid)
2052 return ieee802_1d_to_ac[tid & 7];
2055 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
2056 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
2057 void ieee80211_dynamic_ps_timer(struct timer_list *t);
2058 void ieee80211_send_nullfunc(struct ieee80211_local *local,
2059 struct ieee80211_sub_if_data *sdata,
2061 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
2062 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
2064 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
2065 unsigned long queues,
2066 enum queue_stop_reason reason,
2068 void ieee80211_stop_vif_queues(struct ieee80211_local *local,
2069 struct ieee80211_sub_if_data *sdata,
2070 enum queue_stop_reason reason);
2071 void ieee80211_wake_vif_queues(struct ieee80211_local *local,
2072 struct ieee80211_sub_if_data *sdata,
2073 enum queue_stop_reason reason);
2074 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
2075 unsigned long queues,
2076 enum queue_stop_reason reason,
2078 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
2079 enum queue_stop_reason reason,
2081 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
2082 enum queue_stop_reason reason,
2084 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
2085 void ieee80211_add_pending_skb(struct ieee80211_local *local,
2086 struct sk_buff *skb);
2087 void ieee80211_add_pending_skbs(struct ieee80211_local *local,
2088 struct sk_buff_head *skbs);
2089 void ieee80211_flush_queues(struct ieee80211_local *local,
2090 struct ieee80211_sub_if_data *sdata, bool drop);
2091 void __ieee80211_flush_queues(struct ieee80211_local *local,
2092 struct ieee80211_sub_if_data *sdata,
2093 unsigned int queues, bool drop);
2095 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
2098 * It's unsafe to try to do any work during reconfigure flow.
2099 * When the flow ends the work will be requeued.
2101 if (local->in_reconfig)
2105 * If quiescing is set, we are racing with __ieee80211_suspend.
2106 * __ieee80211_suspend flushes the workers after setting quiescing,
2107 * and we check quiescing / suspended before enqueing new workers.
2108 * We should abort the worker to avoid the races below.
2110 if (local->quiescing)
2114 * We might already be suspended if the following scenario occurs:
2115 * __ieee80211_suspend Control path
2117 * if (local->quiescing)
2119 * local->quiescing = true;
2120 * flush_workqueue();
2122 * local->suspended = true;
2123 * local->quiescing = false;
2124 * worker starts running...
2126 if (local->suspended)
2132 int ieee80211_txq_setup_flows(struct ieee80211_local *local);
2133 void ieee80211_txq_set_params(struct ieee80211_local *local);
2134 void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
2135 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
2136 struct sta_info *sta,
2137 struct txq_info *txq, int tid);
2138 void ieee80211_txq_purge(struct ieee80211_local *local,
2139 struct txq_info *txqi);
2140 void ieee80211_txq_remove_vlan(struct ieee80211_local *local,
2141 struct ieee80211_sub_if_data *sdata);
2142 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
2143 struct txq_info *txqi);
2144 void ieee80211_wake_txqs(struct tasklet_struct *t);
2145 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
2146 u16 transaction, u16 auth_alg, u16 status,
2147 const u8 *extra, size_t extra_len, const u8 *bssid,
2148 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
2150 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
2151 const u8 *da, const u8 *bssid,
2152 u16 stype, u16 reason,
2153 bool send_frame, u8 *frame_buf);
2156 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0),
2157 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1),
2158 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2),
2161 int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer,
2163 struct ieee80211_scan_ies *ie_desc,
2164 const u8 *ie, size_t ie_len,
2165 u8 bands_used, u32 *rate_masks,
2166 struct cfg80211_chan_def *chandef,
2168 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
2169 const u8 *src, const u8 *dst,
2171 struct ieee80211_channel *chan,
2172 const u8 *ssid, size_t ssid_len,
2173 const u8 *ie, size_t ie_len,
2175 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
2176 struct ieee802_11_elems *elems,
2177 enum nl80211_band band, u32 *basic_rates);
2178 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2179 enum ieee80211_smps_mode smps_mode);
2180 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
2181 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
2183 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
2184 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2186 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2187 const struct cfg80211_chan_def *chandef,
2188 u16 prot_mode, bool rifs_mode);
2189 void ieee80211_ie_build_wide_bw_cs(u8 *pos,
2190 const struct cfg80211_chan_def *chandef);
2191 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2193 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2194 const struct cfg80211_chan_def *chandef);
2195 u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype);
2196 u8 *ieee80211_ie_build_he_cap(u8 *pos,
2197 const struct ieee80211_sta_he_cap *he_cap,
2199 void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data *sdata,
2200 struct sk_buff *skb);
2201 u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef);
2202 int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
2203 const struct ieee80211_supported_band *sband,
2204 const u8 *srates, int srates_len, u32 *rates);
2205 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
2206 struct sk_buff *skb, bool need_basic,
2207 enum nl80211_band band);
2208 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
2209 struct sk_buff *skb, bool need_basic,
2210 enum nl80211_band band);
2211 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
2212 void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata,
2213 struct ieee80211_sta_s1g_cap *caps,
2214 struct sk_buff *skb);
2215 void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata,
2216 struct sk_buff *skb);
2218 /* channel management */
2219 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2220 struct cfg80211_chan_def *chandef);
2221 bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
2222 const struct ieee80211_vht_operation *oper,
2223 const struct ieee80211_ht_operation *htop,
2224 struct cfg80211_chan_def *chandef);
2225 bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
2226 const struct ieee80211_he_operation *he_oper,
2227 struct cfg80211_chan_def *chandef);
2228 bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper,
2229 struct cfg80211_chan_def *chandef);
2230 u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
2233 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
2234 const struct cfg80211_chan_def *chandef,
2235 enum ieee80211_chanctx_mode mode);
2237 ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
2238 const struct cfg80211_chan_def *chandef,
2239 enum ieee80211_chanctx_mode mode,
2240 bool radar_required);
2242 ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata);
2243 int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);
2246 ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
2247 const struct cfg80211_chan_def *chandef,
2249 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
2250 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
2251 void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
2253 int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2254 struct ieee80211_chanctx *ctx);
2256 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2257 struct ieee80211_chanctx *chanctx);
2258 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2259 struct ieee80211_chanctx *ctx);
2260 bool ieee80211_is_radar_required(struct ieee80211_local *local);
2262 void ieee80211_dfs_cac_timer(unsigned long data);
2263 void ieee80211_dfs_cac_timer_work(struct work_struct *work);
2264 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2265 void ieee80211_dfs_radar_detected_work(struct work_struct *work);
2266 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2267 struct cfg80211_csa_settings *csa_settings);
2269 bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs);
2270 bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n);
2271 const struct ieee80211_cipher_scheme *
2272 ieee80211_cs_get(struct ieee80211_local *local, u32 cipher,
2273 enum nl80211_iftype iftype);
2274 int ieee80211_cs_headroom(struct ieee80211_local *local,
2275 struct cfg80211_crypto_settings *crypto,
2276 enum nl80211_iftype iftype);
2277 void ieee80211_recalc_dtim(struct ieee80211_local *local,
2278 struct ieee80211_sub_if_data *sdata);
2279 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2280 const struct cfg80211_chan_def *chandef,
2281 enum ieee80211_chanctx_mode chanmode,
2283 int ieee80211_max_num_channels(struct ieee80211_local *local);
2284 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2285 struct ieee80211_chanctx *ctx);
2288 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2289 const u8 *peer, u8 action_code, u8 dialog_token,
2290 u16 status_code, u32 peer_capability,
2291 bool initiator, const u8 *extra_ies,
2292 size_t extra_ies_len);
2293 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2294 const u8 *peer, enum nl80211_tdls_operation oper);
2295 void ieee80211_tdls_peer_del_work(struct work_struct *wk);
2296 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2297 const u8 *addr, u8 oper_class,
2298 struct cfg80211_chan_def *chandef);
2299 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2300 struct net_device *dev,
2302 void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
2303 void ieee80211_tdls_chsw_work(struct work_struct *wk);
2304 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
2305 const u8 *peer, u16 reason);
2306 const char *ieee80211_get_reason_code_string(u16 reason_code);
2307 u16 ieee80211_encode_usf(int val);
2308 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
2309 enum nl80211_iftype type);
2311 extern const struct ethtool_ops ieee80211_ethtool_ops;
2313 u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw,
2314 struct ieee80211_vif *vif,
2315 struct ieee80211_sta *pubsta,
2316 int len, bool ampdu);
2317 #ifdef CONFIG_MAC80211_NOINLINE
2318 #define debug_noinline noinline
2320 #define debug_noinline
2323 #endif /* IEEE80211_I_H */