2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005, Devicescape Software, Inc.
4 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
5 * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
15 #include <linux/kernel.h>
16 #include <linux/device.h>
17 #include <linux/if_ether.h>
18 #include <linux/interrupt.h>
19 #include <linux/list.h>
20 #include <linux/netdevice.h>
21 #include <linux/skbuff.h>
22 #include <linux/workqueue.h>
23 #include <linux/types.h>
24 #include <linux/spinlock.h>
25 #include <linux/etherdevice.h>
26 #include <linux/leds.h>
27 #include <linux/idr.h>
28 #include <net/ieee80211_radiotap.h>
29 #include <net/cfg80211.h>
30 #include <net/mac80211.h>
35 struct ieee80211_local
;
37 /* Maximum number of broadcast/multicast frames to buffer when some of the
38 * associated stations are using power saving. */
39 #define AP_MAX_BC_BUFFER 128
41 /* Maximum number of frames buffered to all STAs, including multicast frames.
42 * Note: increasing this limit increases the potential memory requirement. Each
43 * frame can be up to about 2 kB long. */
44 #define TOTAL_MAX_TX_BUFFER 512
46 /* Required encryption head and tailroom */
47 #define IEEE80211_ENCRYPT_HEADROOM 8
48 #define IEEE80211_ENCRYPT_TAILROOM 18
50 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
51 * reception of at least three fragmented frames. This limit can be increased
52 * by changing this define, at the cost of slower frame reassembly and
53 * increased memory use (about 2 kB of RAM per entry). */
54 #define IEEE80211_FRAGMENT_MAX 4
56 /* power level hasn't been configured (or set to automatic) */
57 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN
60 * Some APs experience problems when working with U-APSD. Decrease the
61 * probability of that happening by using legacy mode for all ACs but VO.
62 * The AP that caused us trouble was a Cisco 4410N. It ignores our
63 * setting, and always treats non-VO ACs as legacy.
65 #define IEEE80211_DEFAULT_UAPSD_QUEUES \
66 IEEE80211_WMM_IE_STA_QOSINFO_AC_VO
68 #define IEEE80211_DEFAULT_MAX_SP_LEN \
69 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
71 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
73 struct ieee80211_fragment_entry
{
74 unsigned long first_frag_time
;
76 unsigned int rx_queue
;
77 unsigned int last_frag
;
78 unsigned int extra_len
;
79 struct sk_buff_head skb_list
;
80 int ccmp
; /* Whether fragments were encrypted with CCMP */
81 u8 last_pn
[6]; /* PN of the last fragment if CCMP was used */
85 struct ieee80211_bss
{
86 u32 device_ts_beacon
, device_ts_presp
;
91 #define IEEE80211_MAX_SUPP_RATES 32
92 u8 supp_rates
[IEEE80211_MAX_SUPP_RATES
];
93 size_t supp_rates_len
;
94 struct ieee80211_rate
*beacon_rate
;
97 * During association, we save an ERP value from a probe response so
98 * that we can feed ERP info to the driver when handling the
99 * association completes. these fields probably won't be up-to-date
100 * otherwise, you probably don't want to use them.
105 /* Keep track of the corruption of the last beacon/probe response. */
108 /* Keep track of what bits of information we have valid info for. */
113 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
114 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
115 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
117 * These are bss flags that are attached to a bss in the
118 * @corrupt_data field of &struct ieee80211_bss.
120 enum ieee80211_bss_corrupt_data_flags
{
121 IEEE80211_BSS_CORRUPT_BEACON
= BIT(0),
122 IEEE80211_BSS_CORRUPT_PROBE_RESP
= BIT(1)
126 * enum ieee80211_valid_data_flags - BSS valid data flags
127 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
128 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
129 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
131 * These are bss flags that are attached to a bss in the
132 * @valid_data field of &struct ieee80211_bss. They show which parts
133 * of the data structure were recieved as a result of an un-corrupted
134 * beacon/probe response.
136 enum ieee80211_bss_valid_data_flags
{
137 IEEE80211_BSS_VALID_WMM
= BIT(1),
138 IEEE80211_BSS_VALID_RATES
= BIT(2),
139 IEEE80211_BSS_VALID_ERP
= BIT(3)
142 typedef unsigned __bitwise__ ieee80211_tx_result
;
143 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
144 #define TX_DROP ((__force ieee80211_tx_result) 1u)
145 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
147 #define IEEE80211_TX_UNICAST BIT(1)
148 #define IEEE80211_TX_PS_BUFFERED BIT(2)
150 struct ieee80211_tx_data
{
152 struct sk_buff_head skbs
;
153 struct ieee80211_local
*local
;
154 struct ieee80211_sub_if_data
*sdata
;
155 struct sta_info
*sta
;
156 struct ieee80211_key
*key
;
157 struct ieee80211_tx_rate rate
;
163 typedef unsigned __bitwise__ ieee80211_rx_result
;
164 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
165 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
166 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
167 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
170 * enum ieee80211_packet_rx_flags - packet RX flags
171 * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
172 * (incl. multicast frames)
173 * @IEEE80211_RX_FRAGMENTED: fragmented frame
174 * @IEEE80211_RX_AMSDU: a-MSDU packet
175 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
176 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
178 * These are per-frame flags that are attached to a frame in the
179 * @rx_flags field of &struct ieee80211_rx_status.
181 enum ieee80211_packet_rx_flags
{
182 IEEE80211_RX_RA_MATCH
= BIT(1),
183 IEEE80211_RX_FRAGMENTED
= BIT(2),
184 IEEE80211_RX_AMSDU
= BIT(3),
185 IEEE80211_RX_MALFORMED_ACTION_FRM
= BIT(4),
186 IEEE80211_RX_DEFERRED_RELEASE
= BIT(5),
190 * enum ieee80211_rx_flags - RX data flags
192 * @IEEE80211_RX_CMNTR: received on cooked monitor already
193 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
194 * to cfg80211_report_obss_beacon().
196 * These flags are used across handling multiple interfaces
197 * for a single frame.
199 enum ieee80211_rx_flags
{
200 IEEE80211_RX_CMNTR
= BIT(0),
201 IEEE80211_RX_BEACON_REPORTED
= BIT(1),
204 struct ieee80211_rx_data
{
206 struct ieee80211_local
*local
;
207 struct ieee80211_sub_if_data
*sdata
;
208 struct sta_info
*sta
;
209 struct ieee80211_key
*key
;
214 * Index into sequence numbers array, 0..16
215 * since the last (16) is used for non-QoS,
216 * will be 16 on non-QoS frames.
221 * Index into the security IV/PN arrays, 0..16
222 * since the last (16) is used for CCMP-encrypted
223 * management frames, will be set to 16 on mgmt
224 * frames and 0 on non-QoS frames.
232 struct ieee80211_csa_settings
{
233 const u16
*counter_offsets_beacon
;
234 const u16
*counter_offsets_presp
;
236 int n_counter_offsets_beacon
;
237 int n_counter_offsets_presp
;
244 int head_len
, tail_len
;
245 struct ieee80211_meshconf_ie
*meshconf
;
246 u16 csa_counter_offsets
[IEEE80211_MAX_CSA_COUNTERS_NUM
];
247 u8 csa_current_counter
;
248 struct rcu_head rcu_head
;
252 struct rcu_head rcu_head
;
254 u16 csa_counter_offsets
[IEEE80211_MAX_CSA_COUNTERS_NUM
];
259 /* yes, this looks ugly, but guarantees that we can later use
261 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
262 u8 tim
[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID
+ 1)]
263 __aligned(__alignof__(unsigned long));
264 struct sk_buff_head bc_buf
;
265 atomic_t num_sta_ps
; /* number of stations in PS mode */
270 struct ieee80211_if_ap
{
271 struct beacon_data __rcu
*beacon
;
272 struct probe_resp __rcu
*probe_resp
;
274 /* to be used after channel switch. */
275 struct cfg80211_beacon_data
*next_beacon
;
276 struct list_head vlans
; /* write-protected with RTNL and local->mtx */
279 atomic_t num_mcast_sta
; /* number of stations receiving multicast */
280 enum ieee80211_smps_mode req_smps
, /* requested smps mode */
281 driver_smps_mode
; /* smps mode request */
283 struct work_struct request_smps_work
;
286 struct ieee80211_if_wds
{
287 struct sta_info
*sta
;
288 u8 remote_addr
[ETH_ALEN
];
291 struct ieee80211_if_vlan
{
292 struct list_head list
; /* write-protected with RTNL and local->mtx */
294 /* used for all tx if the VLAN is configured to 4-addr mode */
295 struct sta_info __rcu
*sta
;
299 __u32 fwded_mcast
; /* Mesh forwarded multicast frames */
300 __u32 fwded_unicast
; /* Mesh forwarded unicast frames */
301 __u32 fwded_frames
; /* Mesh total forwarded frames */
302 __u32 dropped_frames_ttl
; /* Not transmitted since mesh_ttl == 0*/
303 __u32 dropped_frames_no_route
; /* Not transmitted, no route found */
304 __u32 dropped_frames_congestion
;/* Not forwarded due to congestion */
307 #define PREQ_Q_F_START 0x1
308 #define PREQ_Q_F_REFRESH 0x2
309 struct mesh_preq_queue
{
310 struct list_head list
;
316 #define IEEE80211_ROC_MIN_LEFT 1
318 #define IEEE80211_ROC_MIN_LEFT (HZ/100)
321 struct ieee80211_roc_work
{
322 struct list_head list
;
323 struct list_head dependents
;
325 struct delayed_work work
;
327 struct ieee80211_sub_if_data
*sdata
;
329 struct ieee80211_channel
*chan
;
331 bool started
, abort
, hw_begun
, notified
;
335 unsigned long hw_start_time
;
337 u32 duration
, req_duration
;
338 struct sk_buff
*frame
;
339 u64 cookie
, mgmt_tx_cookie
;
340 enum ieee80211_roc_type type
;
343 /* flags used in struct ieee80211_if_managed.flags */
344 enum ieee80211_sta_flags
{
345 IEEE80211_STA_CONNECTION_POLL
= BIT(1),
346 IEEE80211_STA_CONTROL_PORT
= BIT(2),
347 IEEE80211_STA_DISABLE_HT
= BIT(4),
348 IEEE80211_STA_CSA_RECEIVED
= BIT(5),
349 IEEE80211_STA_MFP_ENABLED
= BIT(6),
350 IEEE80211_STA_UAPSD_ENABLED
= BIT(7),
351 IEEE80211_STA_NULLFUNC_ACKED
= BIT(8),
352 IEEE80211_STA_RESET_SIGNAL_AVE
= BIT(9),
353 IEEE80211_STA_DISABLE_40MHZ
= BIT(10),
354 IEEE80211_STA_DISABLE_VHT
= BIT(11),
355 IEEE80211_STA_DISABLE_80P80MHZ
= BIT(12),
356 IEEE80211_STA_DISABLE_160MHZ
= BIT(13),
357 IEEE80211_STA_DISABLE_WMM
= BIT(14),
360 struct ieee80211_mgd_auth_data
{
361 struct cfg80211_bss
*bss
;
362 unsigned long timeout
;
364 u16 algorithm
, expected_transaction
;
366 u8 key
[WLAN_KEY_LEN_WEP104
];
369 bool timeout_started
;
371 u16 sae_trans
, sae_status
;
376 struct ieee80211_mgd_assoc_data
{
377 struct cfg80211_bss
*bss
;
378 const u8
*supp_rates
;
380 unsigned long timeout
;
384 u8 prev_bssid
[ETH_ALEN
];
385 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
391 bool timeout_started
;
395 struct ieee80211_vht_cap ap_vht_cap
;
401 struct ieee80211_if_managed
{
402 struct timer_list timer
;
403 struct timer_list conn_mon_timer
;
404 struct timer_list bcn_mon_timer
;
405 struct timer_list chswitch_timer
;
406 struct work_struct monitor_work
;
407 struct work_struct chswitch_work
;
408 struct work_struct beacon_connection_loss_work
;
409 struct work_struct csa_connection_drop_work
;
411 unsigned long beacon_timeout
;
412 unsigned long probe_timeout
;
413 int probe_send_count
;
414 bool nullfunc_failed
;
415 bool connection_loss
;
417 struct cfg80211_bss
*associated
;
418 struct ieee80211_mgd_auth_data
*auth_data
;
419 struct ieee80211_mgd_assoc_data
*assoc_data
;
425 bool powersave
; /* powersave requested for this iface */
426 bool broken_ap
; /* AP is broken -- turn off powersave */
429 enum ieee80211_smps_mode req_smps
, /* requested smps mode */
430 driver_smps_mode
; /* smps mode request */
432 struct work_struct request_smps_work
;
436 bool beacon_crc_valid
;
440 bool status_received
;
444 IEEE80211_MFP_DISABLED
,
445 IEEE80211_MFP_OPTIONAL
,
446 IEEE80211_MFP_REQUIRED
447 } mfp
; /* management frame protection */
450 * Bitmask of enabled u-apsd queues,
451 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
454 unsigned int uapsd_queues
;
457 * Maximum number of buffered frames AP can deliver during a
458 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
459 * Needs a new association to take effect.
461 unsigned int uapsd_max_sp_len
;
463 int wmm_last_param_set
;
469 /* Signal strength from the last Beacon frame in the current BSS. */
470 int last_beacon_signal
;
473 * Weighted average of the signal strength from Beacon frames in the
474 * current BSS. This is in units of 1/16 of the signal unit to maintain
475 * accuracy and to speed up calculations, i.e., the value need to be
476 * divided by 16 to get the actual value.
478 int ave_beacon_signal
;
481 * Number of Beacon frames used in ave_beacon_signal. This can be used
482 * to avoid generating less reliable cqm events that would be based
483 * only on couple of received frames.
485 unsigned int count_beacon_signal
;
488 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
489 * that triggered a cqm event. 0 indicates that no event has been
490 * generated for the current association.
492 int last_cqm_event_signal
;
495 * State variables for keeping track of RSSI of the AP currently
496 * connected to and informing driver when RSSI has gone
497 * below/above a certain threshold.
499 int rssi_min_thold
, rssi_max_thold
;
500 int last_ave_beacon_signal
;
502 struct ieee80211_ht_cap ht_capa
; /* configured ht-cap over-rides */
503 struct ieee80211_ht_cap ht_capa_mask
; /* Valid parts of ht_capa */
504 struct ieee80211_vht_cap vht_capa
; /* configured VHT overrides */
505 struct ieee80211_vht_cap vht_capa_mask
; /* Valid parts of vht_capa */
508 struct ieee80211_if_ibss
{
509 struct timer_list timer
;
510 struct work_struct csa_connection_drop_work
;
512 unsigned long last_scan_completed
;
521 bool userspace_handles_dfs
;
523 u8 bssid
[ETH_ALEN
] __aligned(2);
524 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
527 struct cfg80211_chan_def chandef
;
529 unsigned long ibss_join_req
;
530 /* probe response/beacon for IBSS */
531 struct beacon_data __rcu
*presp
;
533 struct ieee80211_ht_cap ht_capa
; /* configured ht-cap over-rides */
534 struct ieee80211_ht_cap ht_capa_mask
; /* Valid parts of ht_capa */
536 spinlock_t incomplete_lock
;
537 struct list_head incomplete_stations
;
540 IEEE80211_IBSS_MLME_SEARCH
,
541 IEEE80211_IBSS_MLME_JOINED
,
546 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
548 * these declarations define the interface, which enables
549 * vendor-specific mesh synchronization
552 struct ieee802_11_elems
;
553 struct ieee80211_mesh_sync_ops
{
554 void (*rx_bcn_presp
)(struct ieee80211_sub_if_data
*sdata
,
556 struct ieee80211_mgmt
*mgmt
,
557 struct ieee802_11_elems
*elems
,
558 struct ieee80211_rx_status
*rx_status
);
560 /* should be called with beacon_data under RCU read lock */
561 void (*adjust_tbtt
)(struct ieee80211_sub_if_data
*sdata
,
562 struct beacon_data
*beacon
);
563 /* add other framework functions here */
566 struct mesh_csa_settings
{
567 struct rcu_head rcu_head
;
568 struct cfg80211_csa_settings settings
;
571 struct ieee80211_if_mesh
{
572 struct timer_list housekeeping_timer
;
573 struct timer_list mesh_path_timer
;
574 struct timer_list mesh_path_root_timer
;
576 unsigned long wrkq_flags
;
577 unsigned long mbss_changed
;
579 u8 mesh_id
[IEEE80211_MAX_MESH_ID_LEN
];
581 /* Active Path Selection Protocol Identifier */
583 /* Active Path Selection Metric Identifier */
585 /* Congestion Control Mode Identifier */
587 /* Synchronization Protocol Identifier */
589 /* Authentication Protocol Identifier */
591 /* Local mesh Sequence Number */
593 /* Last used PREQ ID */
596 /* Timestamp of last SN update */
597 unsigned long last_sn_update
;
598 /* Time when it's ok to send next PERR */
599 unsigned long next_perr
;
600 /* Timestamp of last PREQ sent */
601 unsigned long last_preq
;
602 struct mesh_rmc
*rmc
;
603 spinlock_t mesh_preq_queue_lock
;
604 struct mesh_preq_queue preq_queue
;
606 struct mesh_stats mshstats
;
607 struct mesh_config mshcfg
;
608 atomic_t estab_plinks
;
610 bool accepting_plinks
;
612 struct beacon_data __rcu
*beacon
;
616 IEEE80211_MESH_SEC_NONE
= 0x0,
617 IEEE80211_MESH_SEC_AUTHED
= 0x1,
618 IEEE80211_MESH_SEC_SECURED
= 0x2,
621 /* Extensible Synchronization Framework */
622 const struct ieee80211_mesh_sync_ops
*sync_ops
;
623 s64 sync_offset_clockdrift_max
;
624 spinlock_t sync_offset_lock
;
626 /* mesh power save */
627 enum nl80211_mesh_power_mode nonpeer_pm
;
628 int ps_peers_light_sleep
;
629 int ps_peers_deep_sleep
;
631 /* Channel Switching Support */
632 struct mesh_csa_settings __rcu
*csa
;
634 IEEE80211_MESH_CSA_ROLE_NONE
,
635 IEEE80211_MESH_CSA_ROLE_INIT
,
636 IEEE80211_MESH_CSA_ROLE_REPEATER
,
641 /* offset from skb->data while building IE */
645 #ifdef CONFIG_MAC80211_MESH
646 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
647 do { (msh)->mshstats.name++; } while (0)
649 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
654 * enum ieee80211_sub_if_data_flags - virtual interface flags
656 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
657 * @IEEE80211_SDATA_PROMISC: interface is promisc
658 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
659 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
660 * associated stations and deliver multicast frames both
661 * back to wireless media and to the local net stack.
662 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
663 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
665 enum ieee80211_sub_if_data_flags
{
666 IEEE80211_SDATA_ALLMULTI
= BIT(0),
667 IEEE80211_SDATA_PROMISC
= BIT(1),
668 IEEE80211_SDATA_OPERATING_GMODE
= BIT(2),
669 IEEE80211_SDATA_DONT_BRIDGE_PACKETS
= BIT(3),
670 IEEE80211_SDATA_DISCONNECT_RESUME
= BIT(4),
671 IEEE80211_SDATA_IN_DRIVER
= BIT(5),
675 * enum ieee80211_sdata_state_bits - virtual interface state bits
676 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
677 * mirrors netif_running() but is separate for interface type
678 * change handling while the interface is up
679 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
680 * mode, so queues are stopped
681 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
682 * to offchannel, reset when offchannel returns
684 enum ieee80211_sdata_state_bits
{
686 SDATA_STATE_OFFCHANNEL
,
687 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED
,
691 * enum ieee80211_chanctx_mode - channel context configuration mode
693 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
694 * multiple interfaces
695 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
696 * only by a single interface. This can be used for example for
697 * non-fixed channel IBSS.
699 enum ieee80211_chanctx_mode
{
700 IEEE80211_CHANCTX_SHARED
,
701 IEEE80211_CHANCTX_EXCLUSIVE
704 struct ieee80211_chanctx
{
705 struct list_head list
;
706 struct rcu_head rcu_head
;
708 struct list_head assigned_vifs
;
709 struct list_head reserved_vifs
;
711 enum ieee80211_chanctx_mode mode
;
714 struct ieee80211_chanctx_conf conf
;
717 struct mac80211_qos_map
{
718 struct cfg80211_qos_map qos_map
;
719 struct rcu_head rcu_head
;
722 struct ieee80211_sub_if_data
{
723 struct list_head list
;
725 struct wireless_dev wdev
;
728 struct list_head key_list
;
730 /* count for keys needing tailroom space allocation */
731 int crypto_tx_tailroom_needed_cnt
;
732 int crypto_tx_tailroom_pending_dec
;
733 struct delayed_work dec_tailroom_needed_wk
;
735 struct net_device
*dev
;
736 struct ieee80211_local
*local
;
742 int drop_unencrypted
;
746 /* Fragment table for host-based reassembly */
747 struct ieee80211_fragment_entry fragments
[IEEE80211_FRAGMENT_MAX
];
748 unsigned int fragment_next
;
750 /* TID bitmap for NoAck policy */
753 /* bit field of ACM bits (BIT(802.1D tag)) */
756 struct ieee80211_key __rcu
*keys
[NUM_DEFAULT_KEYS
+ NUM_DEFAULT_MGMT_KEYS
];
757 struct ieee80211_key __rcu
*default_unicast_key
;
758 struct ieee80211_key __rcu
*default_multicast_key
;
759 struct ieee80211_key __rcu
*default_mgmt_key
;
762 __be16 control_port_protocol
;
763 bool control_port_no_encrypt
;
764 int encrypt_headroom
;
766 struct ieee80211_tx_queue_params tx_conf
[IEEE80211_NUM_ACS
];
767 struct mac80211_qos_map __rcu
*qos_map
;
769 struct work_struct csa_finalize_work
;
770 bool csa_radar_required
;
771 bool csa_block_tx
; /* write-protected by sdata_lock and local->mtx */
772 struct cfg80211_chan_def csa_chandef
;
774 struct list_head assigned_chanctx_list
; /* protected by chanctx_mtx */
775 struct list_head reserved_chanctx_list
; /* protected by chanctx_mtx */
777 /* context reservation -- protected with chanctx_mtx */
778 struct ieee80211_chanctx
*reserved_chanctx
;
779 struct cfg80211_chan_def reserved_chandef
;
780 bool reserved_radar_required
;
782 /* used to reconfigure hardware SM PS */
783 struct work_struct recalc_smps
;
785 struct work_struct work
;
786 struct sk_buff_head skb_queue
;
789 enum ieee80211_smps_mode smps_mode
;
791 int user_power_level
; /* in dBm */
792 int ap_power_level
; /* in dBm */
795 struct delayed_work dfs_cac_timer_work
;
798 * AP this belongs to: self in AP mode and
799 * corresponding AP in VLAN mode, NULL for
800 * all others (might be needed later in IBSS)
802 struct ieee80211_if_ap
*bss
;
804 /* bitmap of allowed (non-MCS) rate indexes for rate control */
805 u32 rc_rateidx_mask
[IEEE80211_NUM_BANDS
];
807 bool rc_has_mcs_mask
[IEEE80211_NUM_BANDS
];
808 u8 rc_rateidx_mcs_mask
[IEEE80211_NUM_BANDS
][IEEE80211_HT_MCS_MASK_LEN
];
811 struct ieee80211_if_ap ap
;
812 struct ieee80211_if_wds wds
;
813 struct ieee80211_if_vlan vlan
;
814 struct ieee80211_if_managed mgd
;
815 struct ieee80211_if_ibss ibss
;
816 struct ieee80211_if_mesh mesh
;
820 #ifdef CONFIG_MAC80211_DEBUGFS
822 struct dentry
*subdir_stations
;
823 struct dentry
*default_unicast_key
;
824 struct dentry
*default_multicast_key
;
825 struct dentry
*default_mgmt_key
;
829 /* must be last, dynamically sized area in this! */
830 struct ieee80211_vif vif
;
834 struct ieee80211_sub_if_data
*vif_to_sdata(struct ieee80211_vif
*p
)
836 return container_of(p
, struct ieee80211_sub_if_data
, vif
);
839 static inline void sdata_lock(struct ieee80211_sub_if_data
*sdata
)
840 __acquires(&sdata
->wdev
.mtx
)
842 mutex_lock(&sdata
->wdev
.mtx
);
843 __acquire(&sdata
->wdev
.mtx
);
846 static inline void sdata_unlock(struct ieee80211_sub_if_data
*sdata
)
847 __releases(&sdata
->wdev
.mtx
)
849 mutex_unlock(&sdata
->wdev
.mtx
);
850 __release(&sdata
->wdev
.mtx
);
853 #define sdata_dereference(p, sdata) \
854 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
857 sdata_assert_lock(struct ieee80211_sub_if_data
*sdata
)
859 lockdep_assert_held(&sdata
->wdev
.mtx
);
862 static inline enum ieee80211_band
863 ieee80211_get_sdata_band(struct ieee80211_sub_if_data
*sdata
)
865 enum ieee80211_band band
= IEEE80211_BAND_2GHZ
;
866 struct ieee80211_chanctx_conf
*chanctx_conf
;
869 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
870 if (!WARN_ON(!chanctx_conf
))
871 band
= chanctx_conf
->def
.chan
->band
;
878 ieee80211_chandef_get_shift(struct cfg80211_chan_def
*chandef
)
880 switch (chandef
->width
) {
881 case NL80211_CHAN_WIDTH_5
:
883 case NL80211_CHAN_WIDTH_10
:
891 ieee80211_vif_get_shift(struct ieee80211_vif
*vif
)
893 struct ieee80211_chanctx_conf
*chanctx_conf
;
897 chanctx_conf
= rcu_dereference(vif
->chanctx_conf
);
899 shift
= ieee80211_chandef_get_shift(&chanctx_conf
->def
);
905 enum sdata_queue_type
{
906 IEEE80211_SDATA_QUEUE_TYPE_FRAME
= 0,
907 IEEE80211_SDATA_QUEUE_AGG_START
= 1,
908 IEEE80211_SDATA_QUEUE_AGG_STOP
= 2,
912 IEEE80211_RX_MSG
= 1,
913 IEEE80211_TX_STATUS_MSG
= 2,
916 enum queue_stop_reason
{
917 IEEE80211_QUEUE_STOP_REASON_DRIVER
,
918 IEEE80211_QUEUE_STOP_REASON_PS
,
919 IEEE80211_QUEUE_STOP_REASON_CSA
,
920 IEEE80211_QUEUE_STOP_REASON_AGGREGATION
,
921 IEEE80211_QUEUE_STOP_REASON_SUSPEND
,
922 IEEE80211_QUEUE_STOP_REASON_SKB_ADD
,
923 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL
,
924 IEEE80211_QUEUE_STOP_REASON_FLUSH
,
927 #ifdef CONFIG_MAC80211_LEDS
928 struct tpt_led_trigger
{
929 struct led_trigger trig
;
931 const struct ieee80211_tpt_blink
*blink_table
;
932 unsigned int blink_table_len
;
933 struct timer_list timer
;
934 unsigned long prev_traffic
;
935 unsigned long tx_bytes
, rx_bytes
;
936 unsigned int active
, want
;
942 * struct ieee80211_tx_latency_bin_ranges - Tx latency statistics bins ranges
944 * Measuring Tx latency statistics. Counts how many Tx frames transmitted in a
945 * certain latency range (in Milliseconds). Each station that uses these
946 * ranges will have bins to count the amount of frames received in that range.
947 * The user can configure the ranges via debugfs.
948 * If ranges is NULL then Tx latency statistics bins are disabled for all
951 * @n_ranges: number of ranges that are taken in account
952 * @ranges: the ranges that the user requested or NULL if disabled.
954 struct ieee80211_tx_latency_bin_ranges
{
960 * mac80211 scan flags - currently active scan mode
962 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
963 * well be on the operating channel
964 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
965 * determine if we are on the operating channel or not
966 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
967 * channel. This should not interrupt normal traffic.
968 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
969 * that the scan completed.
970 * @SCAN_ABORTED: Set for our scan work function when the driver reported
971 * a scan complete for an aborted scan.
972 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
978 SCAN_ONCHANNEL_SCANNING
,
985 * enum mac80211_scan_state - scan state machine states
987 * @SCAN_DECISION: Main entry point to the scan state machine, this state
988 * determines if we should keep on scanning or switch back to the
990 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
991 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
992 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
994 * @SCAN_RESUME: Resume the scan and scan the next channel
995 * @SCAN_ABORT: Abort the scan and go back to operating channel
997 enum mac80211_scan_state
{
1006 struct ieee80211_local
{
1007 /* embed the driver visible part.
1008 * don't cast (use the static inlines below), but we keep
1009 * it first anyway so they become a no-op */
1010 struct ieee80211_hw hw
;
1012 const struct ieee80211_ops
*ops
;
1015 * private workqueue to mac80211. mac80211 makes this accessible
1016 * via ieee80211_queue_work()
1018 struct workqueue_struct
*workqueue
;
1020 unsigned long queue_stop_reasons
[IEEE80211_MAX_QUEUES
];
1021 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1022 spinlock_t queue_stop_reason_lock
;
1025 int monitors
, cooked_mntrs
;
1026 /* number of interfaces with corresponding FIF_ flags */
1027 int fif_fcsfail
, fif_plcpfail
, fif_control
, fif_other_bss
, fif_pspoll
,
1030 unsigned int filter_flags
; /* FIF_* */
1032 bool wiphy_ciphers_allocated
;
1036 /* protects the aggregated multicast list and filter calls */
1037 spinlock_t filter_lock
;
1039 /* used for uploading changed mc list */
1040 struct work_struct reconfig_filter
;
1042 /* aggregated multicast list */
1043 struct netdev_hw_addr_list mc_list
;
1045 bool tim_in_locked_section
; /* see ieee80211_beacon_get() */
1048 * suspended is true if we finished all the suspend _and_ we have
1049 * not yet come up from resume. This is to be used by mac80211
1050 * to ensure driver sanity during suspend and mac80211's own
1051 * sanity. It can eventually be used for WoW as well.
1056 * Resuming is true while suspended, but when we're reprogramming the
1057 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1058 * again even though some other parts of the stack are still suspended
1059 * and we still drop received frames to avoid waking the stack.
1064 * quiescing is true during the suspend process _only_ to
1065 * ease timer cancelling etc.
1069 /* device is started */
1072 /* device is during a HW reconfig */
1075 /* wowlan is enabled -- don't reconfig on resume */
1078 /* DFS/radar detection is enabled */
1079 bool radar_detect_enabled
;
1080 struct work_struct radar_detected_work
;
1082 /* number of RX chains the hardware has */
1085 int tx_headroom
; /* required headroom for hardware/radiotap */
1087 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1088 * added to skb_queue will be processed, but frames in
1089 * skb_queue_unreliable may be dropped if the total length of these
1090 * queues increases over the limit. */
1091 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1092 struct tasklet_struct tasklet
;
1093 struct sk_buff_head skb_queue
;
1094 struct sk_buff_head skb_queue_unreliable
;
1096 spinlock_t rx_path_lock
;
1100 * The mutex only protects the list, hash table and
1101 * counter, reads are done with RCU.
1103 struct mutex sta_mtx
;
1104 spinlock_t tim_lock
;
1105 unsigned long num_sta
;
1106 struct list_head sta_list
;
1107 struct sta_info __rcu
*sta_hash
[STA_HASH_SIZE
];
1108 struct timer_list sta_cleanup
;
1112 * Tx latency statistics parameters for all stations.
1113 * Can enable via debugfs (NULL when disabled).
1115 struct ieee80211_tx_latency_bin_ranges __rcu
*tx_latency
;
1117 struct sk_buff_head pending
[IEEE80211_MAX_QUEUES
];
1118 struct tasklet_struct tx_pending_tasklet
;
1120 atomic_t agg_queue_stop
[IEEE80211_MAX_QUEUES
];
1122 /* number of interfaces with corresponding IFF_ flags */
1123 atomic_t iff_allmultis
, iff_promiscs
;
1125 struct rate_control_ref
*rate_ctrl
;
1127 struct crypto_cipher
*wep_tx_tfm
;
1128 struct crypto_cipher
*wep_rx_tfm
;
1132 struct list_head interfaces
;
1133 struct mutex iflist_mtx
;
1136 * Key mutex, protects sdata's key_list and sta_info's
1137 * key pointers (write access, they're RCU.)
1139 struct mutex key_mtx
;
1141 /* mutex for scan and work locking */
1144 /* Scanning and BSS list */
1145 unsigned long scanning
;
1146 struct cfg80211_ssid scan_ssid
;
1147 struct cfg80211_scan_request
*int_scan_req
;
1148 struct cfg80211_scan_request
*scan_req
, *hw_scan_req
;
1149 struct cfg80211_chan_def scan_chandef
;
1150 enum ieee80211_band hw_scan_band
;
1151 int scan_channel_idx
;
1153 int hw_scan_ies_bufsize
;
1155 struct work_struct sched_scan_stopped_work
;
1156 struct ieee80211_sub_if_data __rcu
*sched_scan_sdata
;
1157 struct cfg80211_sched_scan_request
*sched_scan_req
;
1159 unsigned long leave_oper_channel_time
;
1160 enum mac80211_scan_state next_scan_state
;
1161 struct delayed_work scan_work
;
1162 struct ieee80211_sub_if_data __rcu
*scan_sdata
;
1163 /* For backward compatibility only -- do not use */
1164 struct cfg80211_chan_def _oper_chandef
;
1166 /* Temporary remain-on-channel for off-channel operations */
1167 struct ieee80211_channel
*tmp_channel
;
1169 /* channel contexts */
1170 struct list_head chanctx_list
;
1171 struct mutex chanctx_mtx
;
1174 /* dot11CountersTable */
1175 u32 dot11TransmittedFragmentCount
;
1176 u32 dot11MulticastTransmittedFrameCount
;
1177 u32 dot11FailedCount
;
1178 u32 dot11RetryCount
;
1179 u32 dot11MultipleRetryCount
;
1180 u32 dot11FrameDuplicateCount
;
1181 u32 dot11ReceivedFragmentCount
;
1182 u32 dot11MulticastReceivedFrameCount
;
1183 u32 dot11TransmittedFrameCount
;
1185 #ifdef CONFIG_MAC80211_LEDS
1186 struct led_trigger
*tx_led
, *rx_led
, *assoc_led
, *radio_led
;
1187 struct tpt_led_trigger
*tpt_led_trigger
;
1188 char tx_led_name
[32], rx_led_name
[32],
1189 assoc_led_name
[32], radio_led_name
[32];
1192 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1193 /* TX/RX handler statistics */
1194 unsigned int tx_handlers_drop
;
1195 unsigned int tx_handlers_queued
;
1196 unsigned int tx_handlers_drop_unencrypted
;
1197 unsigned int tx_handlers_drop_fragment
;
1198 unsigned int tx_handlers_drop_wep
;
1199 unsigned int tx_handlers_drop_not_assoc
;
1200 unsigned int tx_handlers_drop_unauth_port
;
1201 unsigned int rx_handlers_drop
;
1202 unsigned int rx_handlers_queued
;
1203 unsigned int rx_handlers_drop_nullfunc
;
1204 unsigned int rx_handlers_drop_defrag
;
1205 unsigned int rx_handlers_drop_short
;
1206 unsigned int tx_expand_skb_head
;
1207 unsigned int tx_expand_skb_head_cloned
;
1208 unsigned int rx_expand_skb_head
;
1209 unsigned int rx_expand_skb_head2
;
1210 unsigned int rx_handlers_fragments
;
1211 unsigned int tx_status_drop
;
1212 #define I802_DEBUG_INC(c) (c)++
1213 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1214 #define I802_DEBUG_INC(c) do { } while (0)
1215 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1218 int total_ps_buffered
; /* total number of all buffered unicast and
1219 * multicast packets for power saving stations
1223 bool offchannel_ps_enabled
;
1225 * PS can only be enabled when we have exactly one managed
1226 * interface (and monitors) in PS, this then points there.
1228 struct ieee80211_sub_if_data
*ps_sdata
;
1229 struct work_struct dynamic_ps_enable_work
;
1230 struct work_struct dynamic_ps_disable_work
;
1231 struct timer_list dynamic_ps_timer
;
1232 struct notifier_block network_latency_notifier
;
1233 struct notifier_block ifa_notifier
;
1234 struct notifier_block ifa6_notifier
;
1237 * The dynamic ps timeout configured from user space via WEXT -
1238 * this will override whatever chosen by mac80211 internally.
1240 int dynamic_ps_forced_timeout
;
1242 int user_power_level
; /* in dBm, for all interfaces */
1244 enum ieee80211_smps_mode smps_mode
;
1246 struct work_struct restart_work
;
1248 #ifdef CONFIG_MAC80211_DEBUGFS
1249 struct local_debugfsdentries
{
1250 struct dentry
*rcdir
;
1251 struct dentry
*keys
;
1256 * Remain-on-channel support
1258 struct list_head roc_list
;
1259 struct work_struct hw_roc_start
, hw_roc_done
;
1260 unsigned long hw_roc_start_time
;
1261 u64 roc_cookie_counter
;
1263 struct idr ack_status_frames
;
1264 spinlock_t ack_status_lock
;
1266 struct ieee80211_sub_if_data __rcu
*p2p_sdata
;
1268 struct napi_struct
*napi
;
1270 /* virtual monitor interface */
1271 struct ieee80211_sub_if_data __rcu
*monitor_sdata
;
1272 struct cfg80211_chan_def monitor_chandef
;
1275 static inline struct ieee80211_sub_if_data
*
1276 IEEE80211_DEV_TO_SUB_IF(struct net_device
*dev
)
1278 return netdev_priv(dev
);
1281 static inline struct ieee80211_sub_if_data
*
1282 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev
*wdev
)
1284 return container_of(wdev
, struct ieee80211_sub_if_data
, wdev
);
1287 /* this struct represents 802.11n's RA/TID combination */
1288 struct ieee80211_ra_tid
{
1293 /* this struct holds the value parsing from channel switch IE */
1294 struct ieee80211_csa_ie
{
1295 struct cfg80211_chan_def chandef
;
1302 /* Parsed Information Elements */
1303 struct ieee802_11_elems
{
1307 /* pointers to IEs */
1309 const u8
*supp_rates
;
1310 const u8
*ds_params
;
1311 const struct ieee80211_tim_ie
*tim
;
1312 const u8
*challenge
;
1315 const u8
*ext_supp_rates
;
1317 const u8
*wmm_param
;
1318 const struct ieee80211_ht_cap
*ht_cap_elem
;
1319 const struct ieee80211_ht_operation
*ht_operation
;
1320 const struct ieee80211_vht_cap
*vht_cap_elem
;
1321 const struct ieee80211_vht_operation
*vht_operation
;
1322 const struct ieee80211_meshconf_ie
*mesh_config
;
1325 const __le16
*awake_window
;
1329 const struct ieee80211_rann_ie
*rann
;
1330 const struct ieee80211_channel_sw_ie
*ch_switch_ie
;
1331 const struct ieee80211_ext_chansw_ie
*ext_chansw_ie
;
1332 const struct ieee80211_wide_bw_chansw_ie
*wide_bw_chansw_ie
;
1333 const u8
*country_elem
;
1334 const u8
*pwr_constr_elem
;
1335 const struct ieee80211_timeout_interval_ie
*timeout_int
;
1336 const u8
*opmode_notif
;
1337 const struct ieee80211_sec_chan_offs_ie
*sec_chan_offs
;
1338 const struct ieee80211_mesh_chansw_params_ie
*mesh_chansw_params_ie
;
1340 /* length of them, respectively */
1346 u8 ext_supp_rates_len
;
1354 u8 country_elem_len
;
1356 /* whether a parse error occurred while retrieving these elements */
1360 static inline struct ieee80211_local
*hw_to_local(
1361 struct ieee80211_hw
*hw
)
1363 return container_of(hw
, struct ieee80211_local
, hw
);
1367 static inline int ieee80211_bssid_match(const u8
*raddr
, const u8
*addr
)
1369 return ether_addr_equal(raddr
, addr
) ||
1370 is_broadcast_ether_addr(raddr
);
1374 ieee80211_have_rx_timestamp(struct ieee80211_rx_status
*status
)
1376 WARN_ON_ONCE(status
->flag
& RX_FLAG_MACTIME_START
&&
1377 status
->flag
& RX_FLAG_MACTIME_END
);
1378 return status
->flag
& (RX_FLAG_MACTIME_START
| RX_FLAG_MACTIME_END
);
1381 u64
ieee80211_calculate_rx_timestamp(struct ieee80211_local
*local
,
1382 struct ieee80211_rx_status
*status
,
1383 unsigned int mpdu_len
,
1384 unsigned int mpdu_offset
);
1385 int ieee80211_hw_config(struct ieee80211_local
*local
, u32 changed
);
1386 void ieee80211_tx_set_protected(struct ieee80211_tx_data
*tx
);
1387 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data
*sdata
,
1389 void ieee80211_configure_filter(struct ieee80211_local
*local
);
1390 u32
ieee80211_reset_erp_info(struct ieee80211_sub_if_data
*sdata
);
1393 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
1394 int ieee80211_mgd_auth(struct ieee80211_sub_if_data
*sdata
,
1395 struct cfg80211_auth_request
*req
);
1396 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data
*sdata
,
1397 struct cfg80211_assoc_request
*req
);
1398 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data
*sdata
,
1399 struct cfg80211_deauth_request
*req
);
1400 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data
*sdata
,
1401 struct cfg80211_disassoc_request
*req
);
1402 void ieee80211_send_pspoll(struct ieee80211_local
*local
,
1403 struct ieee80211_sub_if_data
*sdata
);
1404 void ieee80211_recalc_ps(struct ieee80211_local
*local
, s32 latency
);
1405 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data
*sdata
);
1406 int ieee80211_max_network_latency(struct notifier_block
*nb
,
1407 unsigned long data
, void *dummy
);
1408 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data
*sdata
);
1409 void ieee80211_sta_work(struct ieee80211_sub_if_data
*sdata
);
1410 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1411 struct sk_buff
*skb
);
1412 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data
*sdata
);
1413 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data
*sdata
);
1414 void ieee80211_mgd_stop(struct ieee80211_sub_if_data
*sdata
);
1415 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data
*sdata
,
1416 __le16 fc
, bool acked
);
1417 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data
*sdata
);
1418 void ieee80211_sta_restart(struct ieee80211_sub_if_data
*sdata
);
1421 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local
*local
);
1422 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
1423 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data
*sdata
,
1424 const u8
*bssid
, const u8
*addr
, u32 supp_rates
);
1425 int ieee80211_ibss_join(struct ieee80211_sub_if_data
*sdata
,
1426 struct cfg80211_ibss_params
*params
);
1427 int ieee80211_ibss_leave(struct ieee80211_sub_if_data
*sdata
);
1428 void ieee80211_ibss_work(struct ieee80211_sub_if_data
*sdata
);
1429 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1430 struct sk_buff
*skb
);
1431 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data
*sdata
,
1432 struct cfg80211_csa_settings
*csa_settings
);
1433 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data
*sdata
);
1434 void ieee80211_ibss_stop(struct ieee80211_sub_if_data
*sdata
);
1437 void ieee80211_mesh_work(struct ieee80211_sub_if_data
*sdata
);
1438 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1439 struct sk_buff
*skb
);
1440 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data
*sdata
,
1441 struct cfg80211_csa_settings
*csa_settings
);
1442 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data
*sdata
);
1444 /* scan/BSS handling */
1445 void ieee80211_scan_work(struct work_struct
*work
);
1446 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data
*sdata
,
1447 const u8
*ssid
, u8 ssid_len
,
1448 struct ieee80211_channel
*chan
,
1449 enum nl80211_bss_scan_width scan_width
);
1450 int ieee80211_request_scan(struct ieee80211_sub_if_data
*sdata
,
1451 struct cfg80211_scan_request
*req
);
1452 void ieee80211_scan_cancel(struct ieee80211_local
*local
);
1453 void ieee80211_run_deferred_scan(struct ieee80211_local
*local
);
1454 void ieee80211_scan_rx(struct ieee80211_local
*local
, struct sk_buff
*skb
);
1456 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local
*local
);
1457 struct ieee80211_bss
*
1458 ieee80211_bss_info_update(struct ieee80211_local
*local
,
1459 struct ieee80211_rx_status
*rx_status
,
1460 struct ieee80211_mgmt
*mgmt
,
1462 struct ieee802_11_elems
*elems
,
1463 struct ieee80211_channel
*channel
);
1464 void ieee80211_rx_bss_put(struct ieee80211_local
*local
,
1465 struct ieee80211_bss
*bss
);
1467 /* scheduled scan handling */
1469 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data
*sdata
,
1470 struct cfg80211_sched_scan_request
*req
);
1471 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data
*sdata
,
1472 struct cfg80211_sched_scan_request
*req
);
1473 int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data
*sdata
);
1474 void ieee80211_sched_scan_end(struct ieee80211_local
*local
);
1475 void ieee80211_sched_scan_stopped_work(struct work_struct
*work
);
1477 /* off-channel helpers */
1478 void ieee80211_offchannel_stop_vifs(struct ieee80211_local
*local
);
1479 void ieee80211_offchannel_return(struct ieee80211_local
*local
);
1480 void ieee80211_roc_setup(struct ieee80211_local
*local
);
1481 void ieee80211_start_next_roc(struct ieee80211_local
*local
);
1482 void ieee80211_roc_purge(struct ieee80211_local
*local
,
1483 struct ieee80211_sub_if_data
*sdata
);
1484 void ieee80211_roc_notify_destroy(struct ieee80211_roc_work
*roc
, bool free
);
1485 void ieee80211_sw_roc_work(struct work_struct
*work
);
1486 void ieee80211_handle_roc_started(struct ieee80211_roc_work
*roc
);
1488 /* channel switch handling */
1489 bool ieee80211_csa_needs_block_tx(struct ieee80211_local
*local
);
1490 void ieee80211_csa_finalize_work(struct work_struct
*work
);
1491 int ieee80211_channel_switch(struct wiphy
*wiphy
, struct net_device
*dev
,
1492 struct cfg80211_csa_settings
*params
);
1494 /* interface handling */
1495 int ieee80211_iface_init(void);
1496 void ieee80211_iface_exit(void);
1497 int ieee80211_if_add(struct ieee80211_local
*local
, const char *name
,
1498 struct wireless_dev
**new_wdev
, enum nl80211_iftype type
,
1499 struct vif_params
*params
);
1500 int ieee80211_if_change_type(struct ieee80211_sub_if_data
*sdata
,
1501 enum nl80211_iftype type
);
1502 void ieee80211_if_remove(struct ieee80211_sub_if_data
*sdata
);
1503 void ieee80211_remove_interfaces(struct ieee80211_local
*local
);
1504 u32
ieee80211_idle_off(struct ieee80211_local
*local
);
1505 void ieee80211_recalc_idle(struct ieee80211_local
*local
);
1506 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data
*sdata
,
1508 int ieee80211_do_open(struct wireless_dev
*wdev
, bool coming_up
);
1509 void ieee80211_sdata_stop(struct ieee80211_sub_if_data
*sdata
);
1510 int ieee80211_add_virtual_monitor(struct ieee80211_local
*local
);
1511 void ieee80211_del_virtual_monitor(struct ieee80211_local
*local
);
1513 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data
*sdata
);
1514 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data
*sdata
);
1516 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data
*sdata
)
1518 return test_bit(SDATA_STATE_RUNNING
, &sdata
->state
);
1522 void ieee80211_clear_tx_pending(struct ieee80211_local
*local
);
1523 void ieee80211_tx_pending(unsigned long data
);
1524 netdev_tx_t
ieee80211_monitor_start_xmit(struct sk_buff
*skb
,
1525 struct net_device
*dev
);
1526 netdev_tx_t
ieee80211_subif_start_xmit(struct sk_buff
*skb
,
1527 struct net_device
*dev
);
1528 void ieee80211_purge_tx_queue(struct ieee80211_hw
*hw
,
1529 struct sk_buff_head
*skbs
);
1532 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data
*sdata
,
1533 struct ieee80211_sta_ht_cap
*ht_cap
);
1534 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data
*sdata
,
1535 struct ieee80211_supported_band
*sband
,
1536 const struct ieee80211_ht_cap
*ht_cap_ie
,
1537 struct sta_info
*sta
);
1538 void ieee80211_send_delba(struct ieee80211_sub_if_data
*sdata
,
1539 const u8
*da
, u16 tid
,
1540 u16 initiator
, u16 reason_code
);
1541 int ieee80211_send_smps_action(struct ieee80211_sub_if_data
*sdata
,
1542 enum ieee80211_smps_mode smps
, const u8
*da
,
1544 void ieee80211_request_smps_ap_work(struct work_struct
*work
);
1545 void ieee80211_request_smps_mgd_work(struct work_struct
*work
);
1546 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old
,
1547 enum ieee80211_smps_mode smps_mode_new
);
1549 void ___ieee80211_stop_rx_ba_session(struct sta_info
*sta
, u16 tid
,
1550 u16 initiator
, u16 reason
, bool stop
);
1551 void __ieee80211_stop_rx_ba_session(struct sta_info
*sta
, u16 tid
,
1552 u16 initiator
, u16 reason
, bool stop
);
1553 void ieee80211_sta_tear_down_BA_sessions(struct sta_info
*sta
,
1554 enum ieee80211_agg_stop_reason reason
);
1555 void ieee80211_process_delba(struct ieee80211_sub_if_data
*sdata
,
1556 struct sta_info
*sta
,
1557 struct ieee80211_mgmt
*mgmt
, size_t len
);
1558 void ieee80211_process_addba_resp(struct ieee80211_local
*local
,
1559 struct sta_info
*sta
,
1560 struct ieee80211_mgmt
*mgmt
,
1562 void ieee80211_process_addba_request(struct ieee80211_local
*local
,
1563 struct sta_info
*sta
,
1564 struct ieee80211_mgmt
*mgmt
,
1567 int __ieee80211_stop_tx_ba_session(struct sta_info
*sta
, u16 tid
,
1568 enum ieee80211_agg_stop_reason reason
);
1569 int ___ieee80211_stop_tx_ba_session(struct sta_info
*sta
, u16 tid
,
1570 enum ieee80211_agg_stop_reason reason
);
1571 void ieee80211_start_tx_ba_cb(struct ieee80211_vif
*vif
, u8
*ra
, u16 tid
);
1572 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif
*vif
, u8
*ra
, u8 tid
);
1573 void ieee80211_ba_session_work(struct work_struct
*work
);
1574 void ieee80211_tx_ba_session_handle_start(struct sta_info
*sta
, int tid
);
1575 void ieee80211_release_reorder_timeout(struct sta_info
*sta
, int tid
);
1577 u8
ieee80211_mcs_to_chains(const struct ieee80211_mcs_info
*mcs
);
1581 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data
*sdata
,
1582 struct ieee80211_supported_band
*sband
,
1583 const struct ieee80211_vht_cap
*vht_cap_ie
,
1584 struct sta_info
*sta
);
1585 enum ieee80211_sta_rx_bandwidth
ieee80211_sta_cur_vht_bw(struct sta_info
*sta
);
1586 void ieee80211_sta_set_rx_nss(struct sta_info
*sta
);
1587 u32
__ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data
*sdata
,
1588 struct sta_info
*sta
, u8 opmode
,
1589 enum ieee80211_band band
, bool nss_only
);
1590 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data
*sdata
,
1591 struct sta_info
*sta
, u8 opmode
,
1592 enum ieee80211_band band
, bool nss_only
);
1593 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data
*sdata
,
1594 struct ieee80211_sta_vht_cap
*vht_cap
);
1596 /* Spectrum management */
1597 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data
*sdata
,
1598 struct ieee80211_mgmt
*mgmt
,
1601 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
1602 * @sdata: the sdata of the interface which has received the frame
1603 * @elems: parsed 802.11 elements received with the frame
1604 * @beacon: indicates if the frame was a beacon or probe response
1605 * @current_band: indicates the current band
1606 * @sta_flags: contains information about own capabilities and restrictions
1607 * to decide which channel switch announcements can be accepted. Only the
1608 * following subset of &enum ieee80211_sta_flags are evaluated:
1609 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
1610 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
1611 * %IEEE80211_STA_DISABLE_160MHZ.
1612 * @bssid: the currently connected bssid (for reporting)
1613 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
1614 All of them will be filled with if success only.
1615 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
1617 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data
*sdata
,
1618 struct ieee802_11_elems
*elems
, bool beacon
,
1619 enum ieee80211_band current_band
,
1620 u32 sta_flags
, u8
*bssid
,
1621 struct ieee80211_csa_ie
*csa_ie
);
1623 /* Suspend/resume and hw reconfiguration */
1624 int ieee80211_reconfig(struct ieee80211_local
*local
);
1625 void ieee80211_stop_device(struct ieee80211_local
*local
);
1627 int __ieee80211_suspend(struct ieee80211_hw
*hw
,
1628 struct cfg80211_wowlan
*wowlan
);
1630 static inline int __ieee80211_resume(struct ieee80211_hw
*hw
)
1632 struct ieee80211_local
*local
= hw_to_local(hw
);
1634 WARN(test_bit(SCAN_HW_SCANNING
, &local
->scanning
),
1635 "%s: resume with hardware scan still in progress\n",
1636 wiphy_name(hw
->wiphy
));
1638 return ieee80211_reconfig(hw_to_local(hw
));
1641 /* utility functions/constants */
1642 extern const void *const mac80211_wiphy_privid
; /* for wiphy privid */
1643 u8
*ieee80211_get_bssid(struct ieee80211_hdr
*hdr
, size_t len
,
1644 enum nl80211_iftype type
);
1645 int ieee80211_frame_duration(enum ieee80211_band band
, size_t len
,
1646 int rate
, int erp
, int short_preamble
,
1648 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data
*sdata
, int keyidx
,
1649 struct ieee80211_hdr
*hdr
, const u8
*tsc
,
1651 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data
*sdata
,
1653 void ieee80211_xmit(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
,
1654 enum ieee80211_band band
);
1656 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data
*sdata
,
1657 struct sk_buff
*skb
, int tid
,
1658 enum ieee80211_band band
);
1661 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data
*sdata
,
1662 struct sk_buff
*skb
, int tid
,
1663 enum ieee80211_band band
)
1666 __ieee80211_tx_skb_tid_band(sdata
, skb
, tid
, band
);
1670 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data
*sdata
,
1671 struct sk_buff
*skb
, int tid
)
1673 struct ieee80211_chanctx_conf
*chanctx_conf
;
1676 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
1677 if (WARN_ON(!chanctx_conf
)) {
1683 __ieee80211_tx_skb_tid_band(sdata
, skb
, tid
,
1684 chanctx_conf
->def
.chan
->band
);
1688 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data
*sdata
,
1689 struct sk_buff
*skb
)
1691 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1692 ieee80211_tx_skb_tid(sdata
, skb
, 7);
1695 u32
ieee802_11_parse_elems_crc(const u8
*start
, size_t len
, bool action
,
1696 struct ieee802_11_elems
*elems
,
1697 u64 filter
, u32 crc
);
1698 static inline void ieee802_11_parse_elems(const u8
*start
, size_t len
,
1700 struct ieee802_11_elems
*elems
)
1702 ieee802_11_parse_elems_crc(start
, len
, action
, elems
, 0, 0);
1705 void ieee80211_dynamic_ps_enable_work(struct work_struct
*work
);
1706 void ieee80211_dynamic_ps_disable_work(struct work_struct
*work
);
1707 void ieee80211_dynamic_ps_timer(unsigned long data
);
1708 void ieee80211_send_nullfunc(struct ieee80211_local
*local
,
1709 struct ieee80211_sub_if_data
*sdata
,
1711 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data
*sdata
,
1712 struct ieee80211_hdr
*hdr
);
1713 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data
*sdata
,
1714 struct ieee80211_hdr
*hdr
, bool ack
);
1716 void ieee80211_wake_queues_by_reason(struct ieee80211_hw
*hw
,
1717 unsigned long queues
,
1718 enum queue_stop_reason reason
);
1719 void ieee80211_stop_queues_by_reason(struct ieee80211_hw
*hw
,
1720 unsigned long queues
,
1721 enum queue_stop_reason reason
);
1722 void ieee80211_wake_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1723 enum queue_stop_reason reason
);
1724 void ieee80211_stop_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1725 enum queue_stop_reason reason
);
1726 void ieee80211_propagate_queue_wake(struct ieee80211_local
*local
, int queue
);
1727 void ieee80211_add_pending_skb(struct ieee80211_local
*local
,
1728 struct sk_buff
*skb
);
1729 void ieee80211_add_pending_skbs(struct ieee80211_local
*local
,
1730 struct sk_buff_head
*skbs
);
1731 void ieee80211_flush_queues(struct ieee80211_local
*local
,
1732 struct ieee80211_sub_if_data
*sdata
);
1734 void ieee80211_send_auth(struct ieee80211_sub_if_data
*sdata
,
1735 u16 transaction
, u16 auth_alg
, u16 status
,
1736 const u8
*extra
, size_t extra_len
, const u8
*bssid
,
1737 const u8
*da
, const u8
*key
, u8 key_len
, u8 key_idx
,
1739 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data
*sdata
,
1740 const u8
*bssid
, u16 stype
, u16 reason
,
1741 bool send_frame
, u8
*frame_buf
);
1742 int ieee80211_build_preq_ies(struct ieee80211_local
*local
, u8
*buffer
,
1743 size_t buffer_len
, const u8
*ie
, size_t ie_len
,
1744 enum ieee80211_band band
, u32 rate_mask
,
1745 struct cfg80211_chan_def
*chandef
);
1746 struct sk_buff
*ieee80211_build_probe_req(struct ieee80211_sub_if_data
*sdata
,
1747 u8
*dst
, u32 ratemask
,
1748 struct ieee80211_channel
*chan
,
1749 const u8
*ssid
, size_t ssid_len
,
1750 const u8
*ie
, size_t ie_len
,
1752 void ieee80211_send_probe_req(struct ieee80211_sub_if_data
*sdata
, u8
*dst
,
1753 const u8
*ssid
, size_t ssid_len
,
1754 const u8
*ie
, size_t ie_len
,
1755 u32 ratemask
, bool directed
, u32 tx_flags
,
1756 struct ieee80211_channel
*channel
, bool scan
);
1758 u32
ieee80211_sta_get_rates(struct ieee80211_sub_if_data
*sdata
,
1759 struct ieee802_11_elems
*elems
,
1760 enum ieee80211_band band
, u32
*basic_rates
);
1761 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data
*sdata
,
1762 enum ieee80211_smps_mode smps_mode
);
1763 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data
*sdata
,
1764 enum ieee80211_smps_mode smps_mode
);
1765 void ieee80211_recalc_smps(struct ieee80211_sub_if_data
*sdata
);
1766 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data
*sdata
);
1768 size_t ieee80211_ie_split(const u8
*ies
, size_t ielen
,
1769 const u8
*ids
, int n_ids
, size_t offset
);
1770 size_t ieee80211_ie_split_vendor(const u8
*ies
, size_t ielen
, size_t offset
);
1771 u8
*ieee80211_ie_build_ht_cap(u8
*pos
, struct ieee80211_sta_ht_cap
*ht_cap
,
1773 u8
*ieee80211_ie_build_ht_oper(u8
*pos
, struct ieee80211_sta_ht_cap
*ht_cap
,
1774 const struct cfg80211_chan_def
*chandef
,
1776 u8
*ieee80211_ie_build_vht_cap(u8
*pos
, struct ieee80211_sta_vht_cap
*vht_cap
,
1778 int ieee80211_parse_bitrates(struct cfg80211_chan_def
*chandef
,
1779 const struct ieee80211_supported_band
*sband
,
1780 const u8
*srates
, int srates_len
, u32
*rates
);
1781 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data
*sdata
,
1782 struct sk_buff
*skb
, bool need_basic
,
1783 enum ieee80211_band band
);
1784 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data
*sdata
,
1785 struct sk_buff
*skb
, bool need_basic
,
1786 enum ieee80211_band band
);
1788 /* channel management */
1789 void ieee80211_ht_oper_to_chandef(struct ieee80211_channel
*control_chan
,
1790 const struct ieee80211_ht_operation
*ht_oper
,
1791 struct cfg80211_chan_def
*chandef
);
1792 u32
ieee80211_chandef_downgrade(struct cfg80211_chan_def
*c
);
1795 ieee80211_vif_use_channel(struct ieee80211_sub_if_data
*sdata
,
1796 const struct cfg80211_chan_def
*chandef
,
1797 enum ieee80211_chanctx_mode mode
);
1799 ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data
*sdata
,
1800 const struct cfg80211_chan_def
*chandef
,
1801 enum ieee80211_chanctx_mode mode
,
1802 bool radar_required
);
1804 ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data
*sdata
,
1806 int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data
*sdata
);
1809 ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data
*sdata
,
1810 const struct cfg80211_chan_def
*chandef
,
1812 /* NOTE: only use ieee80211_vif_change_channel() for channel switch */
1814 ieee80211_vif_change_channel(struct ieee80211_sub_if_data
*sdata
,
1816 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data
*sdata
);
1817 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data
*sdata
);
1818 void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data
*sdata
,
1820 int ieee80211_chanctx_refcount(struct ieee80211_local
*local
,
1821 struct ieee80211_chanctx
*ctx
);
1823 void ieee80211_recalc_smps_chanctx(struct ieee80211_local
*local
,
1824 struct ieee80211_chanctx
*chanctx
);
1825 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local
*local
,
1826 struct ieee80211_chanctx
*ctx
);
1828 void ieee80211_dfs_cac_timer(unsigned long data
);
1829 void ieee80211_dfs_cac_timer_work(struct work_struct
*work
);
1830 void ieee80211_dfs_cac_cancel(struct ieee80211_local
*local
);
1831 void ieee80211_dfs_radar_detected_work(struct work_struct
*work
);
1832 int ieee80211_send_action_csa(struct ieee80211_sub_if_data
*sdata
,
1833 struct cfg80211_csa_settings
*csa_settings
);
1835 bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme
*cs
);
1836 bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme
*cs
, int n
);
1837 const struct ieee80211_cipher_scheme
*
1838 ieee80211_cs_get(struct ieee80211_local
*local
, u32 cipher
,
1839 enum nl80211_iftype iftype
);
1840 int ieee80211_cs_headroom(struct ieee80211_local
*local
,
1841 struct cfg80211_crypto_settings
*crypto
,
1842 enum nl80211_iftype iftype
);
1843 void ieee80211_recalc_dtim(struct ieee80211_local
*local
,
1844 struct ieee80211_sub_if_data
*sdata
);
1845 int ieee80211_check_combinations(struct ieee80211_sub_if_data
*sdata
,
1846 const struct cfg80211_chan_def
*chandef
,
1847 enum ieee80211_chanctx_mode chanmode
,
1849 int ieee80211_max_num_channels(struct ieee80211_local
*local
);
1852 int ieee80211_tdls_mgmt(struct wiphy
*wiphy
, struct net_device
*dev
,
1853 const u8
*peer
, u8 action_code
, u8 dialog_token
,
1854 u16 status_code
, u32 peer_capability
,
1855 const u8
*extra_ies
, size_t extra_ies_len
);
1856 int ieee80211_tdls_oper(struct wiphy
*wiphy
, struct net_device
*dev
,
1857 const u8
*peer
, enum nl80211_tdls_operation oper
);
1860 extern const struct ethtool_ops ieee80211_ethtool_ops
;
1862 #ifdef CONFIG_MAC80211_NOINLINE
1863 #define debug_noinline noinline
1865 #define debug_noinline
1868 #endif /* IEEE80211_I_H */