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.
234 int head_len
, tail_len
;
235 struct rcu_head rcu_head
;
239 struct rcu_head rcu_head
;
245 /* yes, this looks ugly, but guarantees that we can later use
247 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
248 u8 tim
[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID
+ 1)];
249 struct sk_buff_head bc_buf
;
250 atomic_t num_sta_ps
; /* number of stations in PS mode */
255 struct ieee80211_if_ap
{
256 struct beacon_data __rcu
*beacon
;
257 struct probe_resp __rcu
*probe_resp
;
259 /* to be used after channel switch. */
260 struct cfg80211_beacon_data
*next_beacon
;
261 struct list_head vlans
;
264 atomic_t num_mcast_sta
; /* number of stations receiving multicast */
265 enum ieee80211_smps_mode req_smps
, /* requested smps mode */
266 driver_smps_mode
; /* smps mode request */
268 struct work_struct request_smps_work
;
271 struct ieee80211_if_wds
{
272 struct sta_info
*sta
;
273 u8 remote_addr
[ETH_ALEN
];
276 struct ieee80211_if_vlan
{
277 struct list_head list
;
279 /* used for all tx if the VLAN is configured to 4-addr mode */
280 struct sta_info __rcu
*sta
;
284 __u32 fwded_mcast
; /* Mesh forwarded multicast frames */
285 __u32 fwded_unicast
; /* Mesh forwarded unicast frames */
286 __u32 fwded_frames
; /* Mesh total forwarded frames */
287 __u32 dropped_frames_ttl
; /* Not transmitted since mesh_ttl == 0*/
288 __u32 dropped_frames_no_route
; /* Not transmitted, no route found */
289 __u32 dropped_frames_congestion
;/* Not forwarded due to congestion */
292 #define PREQ_Q_F_START 0x1
293 #define PREQ_Q_F_REFRESH 0x2
294 struct mesh_preq_queue
{
295 struct list_head list
;
301 #define IEEE80211_ROC_MIN_LEFT 1
303 #define IEEE80211_ROC_MIN_LEFT (HZ/100)
306 struct ieee80211_roc_work
{
307 struct list_head list
;
308 struct list_head dependents
;
310 struct delayed_work work
;
312 struct ieee80211_sub_if_data
*sdata
;
314 struct ieee80211_channel
*chan
;
316 bool started
, abort
, hw_begun
, notified
;
319 unsigned long hw_start_time
;
321 u32 duration
, req_duration
;
322 struct sk_buff
*frame
;
323 u64 cookie
, mgmt_tx_cookie
;
324 enum ieee80211_roc_type type
;
327 /* flags used in struct ieee80211_if_managed.flags */
328 enum ieee80211_sta_flags
{
329 IEEE80211_STA_CONNECTION_POLL
= BIT(1),
330 IEEE80211_STA_CONTROL_PORT
= BIT(2),
331 IEEE80211_STA_DISABLE_HT
= BIT(4),
332 IEEE80211_STA_CSA_RECEIVED
= BIT(5),
333 IEEE80211_STA_MFP_ENABLED
= BIT(6),
334 IEEE80211_STA_UAPSD_ENABLED
= BIT(7),
335 IEEE80211_STA_NULLFUNC_ACKED
= BIT(8),
336 IEEE80211_STA_RESET_SIGNAL_AVE
= BIT(9),
337 IEEE80211_STA_DISABLE_40MHZ
= BIT(10),
338 IEEE80211_STA_DISABLE_VHT
= BIT(11),
339 IEEE80211_STA_DISABLE_80P80MHZ
= BIT(12),
340 IEEE80211_STA_DISABLE_160MHZ
= BIT(13),
341 IEEE80211_STA_DISABLE_WMM
= BIT(14),
344 struct ieee80211_mgd_auth_data
{
345 struct cfg80211_bss
*bss
;
346 unsigned long timeout
;
348 u16 algorithm
, expected_transaction
;
350 u8 key
[WLAN_KEY_LEN_WEP104
];
353 bool timeout_started
;
355 u16 sae_trans
, sae_status
;
360 struct ieee80211_mgd_assoc_data
{
361 struct cfg80211_bss
*bss
;
362 const u8
*supp_rates
;
364 unsigned long timeout
;
368 u8 prev_bssid
[ETH_ALEN
];
369 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
375 bool timeout_started
;
379 struct ieee80211_vht_cap ap_vht_cap
;
385 struct ieee80211_if_managed
{
386 struct timer_list timer
;
387 struct timer_list conn_mon_timer
;
388 struct timer_list bcn_mon_timer
;
389 struct timer_list chswitch_timer
;
390 struct work_struct monitor_work
;
391 struct work_struct chswitch_work
;
392 struct work_struct beacon_connection_loss_work
;
393 struct work_struct csa_connection_drop_work
;
395 unsigned long beacon_timeout
;
396 unsigned long probe_timeout
;
397 int probe_send_count
;
398 bool nullfunc_failed
;
399 bool connection_loss
;
401 struct cfg80211_bss
*associated
;
402 struct ieee80211_mgd_auth_data
*auth_data
;
403 struct ieee80211_mgd_assoc_data
*assoc_data
;
409 bool powersave
; /* powersave requested for this iface */
410 bool broken_ap
; /* AP is broken -- turn off powersave */
413 enum ieee80211_smps_mode req_smps
, /* requested smps mode */
414 driver_smps_mode
; /* smps mode request */
416 struct work_struct request_smps_work
;
420 bool beacon_crc_valid
;
424 bool status_received
;
428 IEEE80211_MFP_DISABLED
,
429 IEEE80211_MFP_OPTIONAL
,
430 IEEE80211_MFP_REQUIRED
431 } mfp
; /* management frame protection */
434 * Bitmask of enabled u-apsd queues,
435 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
438 unsigned int uapsd_queues
;
441 * Maximum number of buffered frames AP can deliver during a
442 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
443 * Needs a new association to take effect.
445 unsigned int uapsd_max_sp_len
;
447 int wmm_last_param_set
;
453 /* Signal strength from the last Beacon frame in the current BSS. */
454 int last_beacon_signal
;
457 * Weighted average of the signal strength from Beacon frames in the
458 * current BSS. This is in units of 1/16 of the signal unit to maintain
459 * accuracy and to speed up calculations, i.e., the value need to be
460 * divided by 16 to get the actual value.
462 int ave_beacon_signal
;
465 * Number of Beacon frames used in ave_beacon_signal. This can be used
466 * to avoid generating less reliable cqm events that would be based
467 * only on couple of received frames.
469 unsigned int count_beacon_signal
;
472 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
473 * that triggered a cqm event. 0 indicates that no event has been
474 * generated for the current association.
476 int last_cqm_event_signal
;
479 * State variables for keeping track of RSSI of the AP currently
480 * connected to and informing driver when RSSI has gone
481 * below/above a certain threshold.
483 int rssi_min_thold
, rssi_max_thold
;
484 int last_ave_beacon_signal
;
486 struct ieee80211_ht_cap ht_capa
; /* configured ht-cap over-rides */
487 struct ieee80211_ht_cap ht_capa_mask
; /* Valid parts of ht_capa */
488 struct ieee80211_vht_cap vht_capa
; /* configured VHT overrides */
489 struct ieee80211_vht_cap vht_capa_mask
; /* Valid parts of vht_capa */
492 struct ieee80211_if_ibss
{
493 struct timer_list timer
;
494 struct work_struct csa_connection_drop_work
;
496 unsigned long last_scan_completed
;
505 bool userspace_handles_dfs
;
507 u8 bssid
[ETH_ALEN
] __aligned(2);
508 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
511 struct cfg80211_chan_def chandef
;
513 unsigned long ibss_join_req
;
514 /* probe response/beacon for IBSS */
515 struct beacon_data __rcu
*presp
;
517 struct ieee80211_ht_cap ht_capa
; /* configured ht-cap over-rides */
518 struct ieee80211_ht_cap ht_capa_mask
; /* Valid parts of ht_capa */
520 spinlock_t incomplete_lock
;
521 struct list_head incomplete_stations
;
524 IEEE80211_IBSS_MLME_SEARCH
,
525 IEEE80211_IBSS_MLME_JOINED
,
530 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
532 * these declarations define the interface, which enables
533 * vendor-specific mesh synchronization
536 struct ieee802_11_elems
;
537 struct ieee80211_mesh_sync_ops
{
538 void (*rx_bcn_presp
)(struct ieee80211_sub_if_data
*sdata
,
540 struct ieee80211_mgmt
*mgmt
,
541 struct ieee802_11_elems
*elems
,
542 struct ieee80211_rx_status
*rx_status
);
543 void (*adjust_tbtt
)(struct ieee80211_sub_if_data
*sdata
);
544 /* add other framework functions here */
547 struct mesh_csa_settings
{
548 struct rcu_head rcu_head
;
549 struct cfg80211_csa_settings settings
;
552 struct ieee80211_if_mesh
{
553 struct timer_list housekeeping_timer
;
554 struct timer_list mesh_path_timer
;
555 struct timer_list mesh_path_root_timer
;
557 unsigned long wrkq_flags
;
558 unsigned long mbss_changed
;
560 u8 mesh_id
[IEEE80211_MAX_MESH_ID_LEN
];
562 /* Active Path Selection Protocol Identifier */
564 /* Active Path Selection Metric Identifier */
566 /* Congestion Control Mode Identifier */
568 /* Synchronization Protocol Identifier */
570 /* Authentication Protocol Identifier */
572 /* Local mesh Sequence Number */
574 /* Last used PREQ ID */
577 /* Timestamp of last SN update */
578 unsigned long last_sn_update
;
579 /* Time when it's ok to send next PERR */
580 unsigned long next_perr
;
581 /* Timestamp of last PREQ sent */
582 unsigned long last_preq
;
583 struct mesh_rmc
*rmc
;
584 spinlock_t mesh_preq_queue_lock
;
585 struct mesh_preq_queue preq_queue
;
587 struct mesh_stats mshstats
;
588 struct mesh_config mshcfg
;
589 atomic_t estab_plinks
;
591 bool accepting_plinks
;
593 struct beacon_data __rcu
*beacon
;
597 IEEE80211_MESH_SEC_NONE
= 0x0,
598 IEEE80211_MESH_SEC_AUTHED
= 0x1,
599 IEEE80211_MESH_SEC_SECURED
= 0x2,
602 /* Extensible Synchronization Framework */
603 const struct ieee80211_mesh_sync_ops
*sync_ops
;
604 s64 sync_offset_clockdrift_max
;
605 spinlock_t sync_offset_lock
;
607 /* mesh power save */
608 enum nl80211_mesh_power_mode nonpeer_pm
;
609 int ps_peers_light_sleep
;
610 int ps_peers_deep_sleep
;
612 /* Channel Switching Support */
613 struct mesh_csa_settings __rcu
*csa
;
619 #ifdef CONFIG_MAC80211_MESH
620 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
621 do { (msh)->mshstats.name++; } while (0)
623 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
628 * enum ieee80211_sub_if_data_flags - virtual interface flags
630 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
631 * @IEEE80211_SDATA_PROMISC: interface is promisc
632 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
633 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
634 * associated stations and deliver multicast frames both
635 * back to wireless media and to the local net stack.
636 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
637 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
639 enum ieee80211_sub_if_data_flags
{
640 IEEE80211_SDATA_ALLMULTI
= BIT(0),
641 IEEE80211_SDATA_PROMISC
= BIT(1),
642 IEEE80211_SDATA_OPERATING_GMODE
= BIT(2),
643 IEEE80211_SDATA_DONT_BRIDGE_PACKETS
= BIT(3),
644 IEEE80211_SDATA_DISCONNECT_RESUME
= BIT(4),
645 IEEE80211_SDATA_IN_DRIVER
= BIT(5),
649 * enum ieee80211_sdata_state_bits - virtual interface state bits
650 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
651 * mirrors netif_running() but is separate for interface type
652 * change handling while the interface is up
653 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
654 * mode, so queues are stopped
655 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
656 * to offchannel, reset when offchannel returns
658 enum ieee80211_sdata_state_bits
{
660 SDATA_STATE_OFFCHANNEL
,
661 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED
,
665 * enum ieee80211_chanctx_mode - channel context configuration mode
667 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
668 * multiple interfaces
669 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
670 * only by a single interface. This can be used for example for
671 * non-fixed channel IBSS.
673 enum ieee80211_chanctx_mode
{
674 IEEE80211_CHANCTX_SHARED
,
675 IEEE80211_CHANCTX_EXCLUSIVE
678 struct ieee80211_chanctx
{
679 struct list_head list
;
680 struct rcu_head rcu_head
;
682 enum ieee80211_chanctx_mode mode
;
686 struct ieee80211_chanctx_conf conf
;
689 struct ieee80211_sub_if_data
{
690 struct list_head list
;
692 struct wireless_dev wdev
;
695 struct list_head key_list
;
697 /* count for keys needing tailroom space allocation */
698 int crypto_tx_tailroom_needed_cnt
;
699 int crypto_tx_tailroom_pending_dec
;
700 struct delayed_work dec_tailroom_needed_wk
;
702 struct net_device
*dev
;
703 struct ieee80211_local
*local
;
709 int drop_unencrypted
;
713 /* Fragment table for host-based reassembly */
714 struct ieee80211_fragment_entry fragments
[IEEE80211_FRAGMENT_MAX
];
715 unsigned int fragment_next
;
717 /* TID bitmap for NoAck policy */
720 /* bit field of ACM bits (BIT(802.1D tag)) */
723 struct ieee80211_key __rcu
*keys
[NUM_DEFAULT_KEYS
+ NUM_DEFAULT_MGMT_KEYS
];
724 struct ieee80211_key __rcu
*default_unicast_key
;
725 struct ieee80211_key __rcu
*default_multicast_key
;
726 struct ieee80211_key __rcu
*default_mgmt_key
;
729 __be16 control_port_protocol
;
730 bool control_port_no_encrypt
;
732 struct ieee80211_tx_queue_params tx_conf
[IEEE80211_NUM_ACS
];
734 struct work_struct csa_finalize_work
;
735 int csa_counter_offset_beacon
;
736 int csa_counter_offset_presp
;
737 bool csa_radar_required
;
739 /* used to reconfigure hardware SM PS */
740 struct work_struct recalc_smps
;
742 struct work_struct work
;
743 struct sk_buff_head skb_queue
;
746 enum ieee80211_smps_mode smps_mode
;
748 int user_power_level
; /* in dBm */
749 int ap_power_level
; /* in dBm */
752 struct delayed_work dfs_cac_timer_work
;
755 * AP this belongs to: self in AP mode and
756 * corresponding AP in VLAN mode, NULL for
757 * all others (might be needed later in IBSS)
759 struct ieee80211_if_ap
*bss
;
761 /* bitmap of allowed (non-MCS) rate indexes for rate control */
762 u32 rc_rateidx_mask
[IEEE80211_NUM_BANDS
];
764 bool rc_has_mcs_mask
[IEEE80211_NUM_BANDS
];
765 u8 rc_rateidx_mcs_mask
[IEEE80211_NUM_BANDS
][IEEE80211_HT_MCS_MASK_LEN
];
768 struct ieee80211_if_ap ap
;
769 struct ieee80211_if_wds wds
;
770 struct ieee80211_if_vlan vlan
;
771 struct ieee80211_if_managed mgd
;
772 struct ieee80211_if_ibss ibss
;
773 struct ieee80211_if_mesh mesh
;
777 spinlock_t cleanup_stations_lock
;
778 struct list_head cleanup_stations
;
779 struct work_struct cleanup_stations_wk
;
781 #ifdef CONFIG_MAC80211_DEBUGFS
783 struct dentry
*subdir_stations
;
784 struct dentry
*default_unicast_key
;
785 struct dentry
*default_multicast_key
;
786 struct dentry
*default_mgmt_key
;
790 /* must be last, dynamically sized area in this! */
791 struct ieee80211_vif vif
;
795 struct ieee80211_sub_if_data
*vif_to_sdata(struct ieee80211_vif
*p
)
797 return container_of(p
, struct ieee80211_sub_if_data
, vif
);
800 static inline void sdata_lock(struct ieee80211_sub_if_data
*sdata
)
801 __acquires(&sdata
->wdev
.mtx
)
803 mutex_lock(&sdata
->wdev
.mtx
);
804 __acquire(&sdata
->wdev
.mtx
);
807 static inline void sdata_unlock(struct ieee80211_sub_if_data
*sdata
)
808 __releases(&sdata
->wdev
.mtx
)
810 mutex_unlock(&sdata
->wdev
.mtx
);
811 __release(&sdata
->wdev
.mtx
);
815 sdata_assert_lock(struct ieee80211_sub_if_data
*sdata
)
817 lockdep_assert_held(&sdata
->wdev
.mtx
);
820 static inline enum ieee80211_band
821 ieee80211_get_sdata_band(struct ieee80211_sub_if_data
*sdata
)
823 enum ieee80211_band band
= IEEE80211_BAND_2GHZ
;
824 struct ieee80211_chanctx_conf
*chanctx_conf
;
827 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
828 if (!WARN_ON(!chanctx_conf
))
829 band
= chanctx_conf
->def
.chan
->band
;
836 ieee80211_chandef_get_shift(struct cfg80211_chan_def
*chandef
)
838 switch (chandef
->width
) {
839 case NL80211_CHAN_WIDTH_5
:
841 case NL80211_CHAN_WIDTH_10
:
849 ieee80211_vif_get_shift(struct ieee80211_vif
*vif
)
851 struct ieee80211_chanctx_conf
*chanctx_conf
;
855 chanctx_conf
= rcu_dereference(vif
->chanctx_conf
);
857 shift
= ieee80211_chandef_get_shift(&chanctx_conf
->def
);
863 enum sdata_queue_type
{
864 IEEE80211_SDATA_QUEUE_TYPE_FRAME
= 0,
865 IEEE80211_SDATA_QUEUE_AGG_START
= 1,
866 IEEE80211_SDATA_QUEUE_AGG_STOP
= 2,
870 IEEE80211_RX_MSG
= 1,
871 IEEE80211_TX_STATUS_MSG
= 2,
874 enum queue_stop_reason
{
875 IEEE80211_QUEUE_STOP_REASON_DRIVER
,
876 IEEE80211_QUEUE_STOP_REASON_PS
,
877 IEEE80211_QUEUE_STOP_REASON_CSA
,
878 IEEE80211_QUEUE_STOP_REASON_AGGREGATION
,
879 IEEE80211_QUEUE_STOP_REASON_SUSPEND
,
880 IEEE80211_QUEUE_STOP_REASON_SKB_ADD
,
881 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL
,
882 IEEE80211_QUEUE_STOP_REASON_FLUSH
,
885 #ifdef CONFIG_MAC80211_LEDS
886 struct tpt_led_trigger
{
887 struct led_trigger trig
;
889 const struct ieee80211_tpt_blink
*blink_table
;
890 unsigned int blink_table_len
;
891 struct timer_list timer
;
892 unsigned long prev_traffic
;
893 unsigned long tx_bytes
, rx_bytes
;
894 unsigned int active
, want
;
900 * mac80211 scan flags - currently active scan mode
902 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
903 * well be on the operating channel
904 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
905 * determine if we are on the operating channel or not
906 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
907 * channel. This should not interrupt normal traffic.
908 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
909 * that the scan completed.
910 * @SCAN_ABORTED: Set for our scan work function when the driver reported
911 * a scan complete for an aborted scan.
912 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
918 SCAN_ONCHANNEL_SCANNING
,
925 * enum mac80211_scan_state - scan state machine states
927 * @SCAN_DECISION: Main entry point to the scan state machine, this state
928 * determines if we should keep on scanning or switch back to the
930 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
931 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
932 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
934 * @SCAN_RESUME: Resume the scan and scan the next channel
935 * @SCAN_ABORT: Abort the scan and go back to operating channel
937 enum mac80211_scan_state
{
946 struct ieee80211_local
{
947 /* embed the driver visible part.
948 * don't cast (use the static inlines below), but we keep
949 * it first anyway so they become a no-op */
950 struct ieee80211_hw hw
;
952 const struct ieee80211_ops
*ops
;
955 * private workqueue to mac80211. mac80211 makes this accessible
956 * via ieee80211_queue_work()
958 struct workqueue_struct
*workqueue
;
960 unsigned long queue_stop_reasons
[IEEE80211_MAX_QUEUES
];
961 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
962 spinlock_t queue_stop_reason_lock
;
965 int monitors
, cooked_mntrs
;
966 /* number of interfaces with corresponding FIF_ flags */
967 int fif_fcsfail
, fif_plcpfail
, fif_control
, fif_other_bss
, fif_pspoll
,
970 unsigned int filter_flags
; /* FIF_* */
972 bool wiphy_ciphers_allocated
;
976 /* protects the aggregated multicast list and filter calls */
977 spinlock_t filter_lock
;
979 /* used for uploading changed mc list */
980 struct work_struct reconfig_filter
;
982 /* aggregated multicast list */
983 struct netdev_hw_addr_list mc_list
;
985 bool tim_in_locked_section
; /* see ieee80211_beacon_get() */
988 * suspended is true if we finished all the suspend _and_ we have
989 * not yet come up from resume. This is to be used by mac80211
990 * to ensure driver sanity during suspend and mac80211's own
991 * sanity. It can eventually be used for WoW as well.
996 * Resuming is true while suspended, but when we're reprogramming the
997 * hardware -- at that time it's allowed to use ieee80211_queue_work()
998 * again even though some other parts of the stack are still suspended
999 * and we still drop received frames to avoid waking the stack.
1004 * quiescing is true during the suspend process _only_ to
1005 * ease timer cancelling etc.
1009 /* device is started */
1012 /* device is during a HW reconfig */
1015 /* wowlan is enabled -- don't reconfig on resume */
1018 /* DFS/radar detection is enabled */
1019 bool radar_detect_enabled
;
1020 struct work_struct radar_detected_work
;
1022 /* number of RX chains the hardware has */
1025 int tx_headroom
; /* required headroom for hardware/radiotap */
1027 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1028 * added to skb_queue will be processed, but frames in
1029 * skb_queue_unreliable may be dropped if the total length of these
1030 * queues increases over the limit. */
1031 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1032 struct tasklet_struct tasklet
;
1033 struct sk_buff_head skb_queue
;
1034 struct sk_buff_head skb_queue_unreliable
;
1036 spinlock_t rx_path_lock
;
1040 * The mutex only protects the list, hash table and
1041 * counter, reads are done with RCU.
1043 struct mutex sta_mtx
;
1044 spinlock_t tim_lock
;
1045 unsigned long num_sta
;
1046 struct list_head sta_list
;
1047 struct sta_info __rcu
*sta_hash
[STA_HASH_SIZE
];
1048 struct timer_list sta_cleanup
;
1051 struct sk_buff_head pending
[IEEE80211_MAX_QUEUES
];
1052 struct tasklet_struct tx_pending_tasklet
;
1054 atomic_t agg_queue_stop
[IEEE80211_MAX_QUEUES
];
1056 /* number of interfaces with corresponding IFF_ flags */
1057 atomic_t iff_allmultis
, iff_promiscs
;
1059 struct rate_control_ref
*rate_ctrl
;
1061 struct crypto_cipher
*wep_tx_tfm
;
1062 struct crypto_cipher
*wep_rx_tfm
;
1066 struct list_head interfaces
;
1067 struct mutex iflist_mtx
;
1070 * Key mutex, protects sdata's key_list and sta_info's
1071 * key pointers (write access, they're RCU.)
1073 struct mutex key_mtx
;
1075 /* mutex for scan and work locking */
1078 /* Scanning and BSS list */
1079 unsigned long scanning
;
1080 struct cfg80211_ssid scan_ssid
;
1081 struct cfg80211_scan_request
*int_scan_req
;
1082 struct cfg80211_scan_request
*scan_req
, *hw_scan_req
;
1083 struct cfg80211_chan_def scan_chandef
;
1084 enum ieee80211_band hw_scan_band
;
1085 int scan_channel_idx
;
1087 int hw_scan_ies_bufsize
;
1089 struct work_struct sched_scan_stopped_work
;
1090 struct ieee80211_sub_if_data __rcu
*sched_scan_sdata
;
1092 unsigned long leave_oper_channel_time
;
1093 enum mac80211_scan_state next_scan_state
;
1094 struct delayed_work scan_work
;
1095 struct ieee80211_sub_if_data __rcu
*scan_sdata
;
1096 struct cfg80211_chan_def csa_chandef
;
1097 /* For backward compatibility only -- do not use */
1098 struct cfg80211_chan_def _oper_chandef
;
1100 /* Temporary remain-on-channel for off-channel operations */
1101 struct ieee80211_channel
*tmp_channel
;
1103 /* channel contexts */
1104 struct list_head chanctx_list
;
1105 struct mutex chanctx_mtx
;
1108 /* dot11CountersTable */
1109 u32 dot11TransmittedFragmentCount
;
1110 u32 dot11MulticastTransmittedFrameCount
;
1111 u32 dot11FailedCount
;
1112 u32 dot11RetryCount
;
1113 u32 dot11MultipleRetryCount
;
1114 u32 dot11FrameDuplicateCount
;
1115 u32 dot11ReceivedFragmentCount
;
1116 u32 dot11MulticastReceivedFrameCount
;
1117 u32 dot11TransmittedFrameCount
;
1119 #ifdef CONFIG_MAC80211_LEDS
1120 struct led_trigger
*tx_led
, *rx_led
, *assoc_led
, *radio_led
;
1121 struct tpt_led_trigger
*tpt_led_trigger
;
1122 char tx_led_name
[32], rx_led_name
[32],
1123 assoc_led_name
[32], radio_led_name
[32];
1126 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1127 /* TX/RX handler statistics */
1128 unsigned int tx_handlers_drop
;
1129 unsigned int tx_handlers_queued
;
1130 unsigned int tx_handlers_drop_unencrypted
;
1131 unsigned int tx_handlers_drop_fragment
;
1132 unsigned int tx_handlers_drop_wep
;
1133 unsigned int tx_handlers_drop_not_assoc
;
1134 unsigned int tx_handlers_drop_unauth_port
;
1135 unsigned int rx_handlers_drop
;
1136 unsigned int rx_handlers_queued
;
1137 unsigned int rx_handlers_drop_nullfunc
;
1138 unsigned int rx_handlers_drop_defrag
;
1139 unsigned int rx_handlers_drop_short
;
1140 unsigned int tx_expand_skb_head
;
1141 unsigned int tx_expand_skb_head_cloned
;
1142 unsigned int rx_expand_skb_head
;
1143 unsigned int rx_expand_skb_head2
;
1144 unsigned int rx_handlers_fragments
;
1145 unsigned int tx_status_drop
;
1146 #define I802_DEBUG_INC(c) (c)++
1147 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1148 #define I802_DEBUG_INC(c) do { } while (0)
1149 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1152 int total_ps_buffered
; /* total number of all buffered unicast and
1153 * multicast packets for power saving stations
1157 bool offchannel_ps_enabled
;
1159 * PS can only be enabled when we have exactly one managed
1160 * interface (and monitors) in PS, this then points there.
1162 struct ieee80211_sub_if_data
*ps_sdata
;
1163 struct work_struct dynamic_ps_enable_work
;
1164 struct work_struct dynamic_ps_disable_work
;
1165 struct timer_list dynamic_ps_timer
;
1166 struct notifier_block network_latency_notifier
;
1167 struct notifier_block ifa_notifier
;
1168 struct notifier_block ifa6_notifier
;
1171 * The dynamic ps timeout configured from user space via WEXT -
1172 * this will override whatever chosen by mac80211 internally.
1174 int dynamic_ps_forced_timeout
;
1176 int user_power_level
; /* in dBm, for all interfaces */
1178 enum ieee80211_smps_mode smps_mode
;
1180 struct work_struct restart_work
;
1182 #ifdef CONFIG_MAC80211_DEBUGFS
1183 struct local_debugfsdentries
{
1184 struct dentry
*rcdir
;
1185 struct dentry
*keys
;
1190 * Remain-on-channel support
1192 struct list_head roc_list
;
1193 struct work_struct hw_roc_start
, hw_roc_done
;
1194 unsigned long hw_roc_start_time
;
1195 u64 roc_cookie_counter
;
1197 struct idr ack_status_frames
;
1198 spinlock_t ack_status_lock
;
1200 struct ieee80211_sub_if_data __rcu
*p2p_sdata
;
1202 /* virtual monitor interface */
1203 struct ieee80211_sub_if_data __rcu
*monitor_sdata
;
1204 struct cfg80211_chan_def monitor_chandef
;
1207 static inline struct ieee80211_sub_if_data
*
1208 IEEE80211_DEV_TO_SUB_IF(struct net_device
*dev
)
1210 return netdev_priv(dev
);
1213 static inline struct ieee80211_sub_if_data
*
1214 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev
*wdev
)
1216 return container_of(wdev
, struct ieee80211_sub_if_data
, wdev
);
1219 /* this struct represents 802.11n's RA/TID combination */
1220 struct ieee80211_ra_tid
{
1225 /* this struct holds the value parsing from channel switch IE */
1226 struct ieee80211_csa_ie
{
1227 struct cfg80211_chan_def chandef
;
1234 /* Parsed Information Elements */
1235 struct ieee802_11_elems
{
1239 /* pointers to IEs */
1241 const u8
*supp_rates
;
1242 const u8
*ds_params
;
1243 const struct ieee80211_tim_ie
*tim
;
1244 const u8
*challenge
;
1247 const u8
*ext_supp_rates
;
1249 const u8
*wmm_param
;
1250 const struct ieee80211_ht_cap
*ht_cap_elem
;
1251 const struct ieee80211_ht_operation
*ht_operation
;
1252 const struct ieee80211_vht_cap
*vht_cap_elem
;
1253 const struct ieee80211_vht_operation
*vht_operation
;
1254 const struct ieee80211_meshconf_ie
*mesh_config
;
1257 const __le16
*awake_window
;
1261 const struct ieee80211_rann_ie
*rann
;
1262 const struct ieee80211_channel_sw_ie
*ch_switch_ie
;
1263 const struct ieee80211_ext_chansw_ie
*ext_chansw_ie
;
1264 const struct ieee80211_wide_bw_chansw_ie
*wide_bw_chansw_ie
;
1265 const u8
*country_elem
;
1266 const u8
*pwr_constr_elem
;
1267 const struct ieee80211_timeout_interval_ie
*timeout_int
;
1268 const u8
*opmode_notif
;
1269 const struct ieee80211_sec_chan_offs_ie
*sec_chan_offs
;
1270 const struct ieee80211_mesh_chansw_params_ie
*mesh_chansw_params_ie
;
1272 /* length of them, respectively */
1278 u8 ext_supp_rates_len
;
1286 u8 country_elem_len
;
1288 /* whether a parse error occurred while retrieving these elements */
1292 static inline struct ieee80211_local
*hw_to_local(
1293 struct ieee80211_hw
*hw
)
1295 return container_of(hw
, struct ieee80211_local
, hw
);
1299 static inline int ieee80211_bssid_match(const u8
*raddr
, const u8
*addr
)
1301 return ether_addr_equal(raddr
, addr
) ||
1302 is_broadcast_ether_addr(raddr
);
1306 ieee80211_have_rx_timestamp(struct ieee80211_rx_status
*status
)
1308 WARN_ON_ONCE(status
->flag
& RX_FLAG_MACTIME_START
&&
1309 status
->flag
& RX_FLAG_MACTIME_END
);
1310 return status
->flag
& (RX_FLAG_MACTIME_START
| RX_FLAG_MACTIME_END
);
1313 u64
ieee80211_calculate_rx_timestamp(struct ieee80211_local
*local
,
1314 struct ieee80211_rx_status
*status
,
1315 unsigned int mpdu_len
,
1316 unsigned int mpdu_offset
);
1317 int ieee80211_hw_config(struct ieee80211_local
*local
, u32 changed
);
1318 void ieee80211_tx_set_protected(struct ieee80211_tx_data
*tx
);
1319 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data
*sdata
,
1321 void ieee80211_configure_filter(struct ieee80211_local
*local
);
1322 u32
ieee80211_reset_erp_info(struct ieee80211_sub_if_data
*sdata
);
1325 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
1326 int ieee80211_mgd_auth(struct ieee80211_sub_if_data
*sdata
,
1327 struct cfg80211_auth_request
*req
);
1328 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data
*sdata
,
1329 struct cfg80211_assoc_request
*req
);
1330 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data
*sdata
,
1331 struct cfg80211_deauth_request
*req
);
1332 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data
*sdata
,
1333 struct cfg80211_disassoc_request
*req
);
1334 void ieee80211_send_pspoll(struct ieee80211_local
*local
,
1335 struct ieee80211_sub_if_data
*sdata
);
1336 void ieee80211_recalc_ps(struct ieee80211_local
*local
, s32 latency
);
1337 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data
*sdata
);
1338 int ieee80211_max_network_latency(struct notifier_block
*nb
,
1339 unsigned long data
, void *dummy
);
1340 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data
*sdata
);
1341 void ieee80211_sta_work(struct ieee80211_sub_if_data
*sdata
);
1342 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1343 struct sk_buff
*skb
);
1344 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data
*sdata
);
1345 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data
*sdata
);
1346 void ieee80211_mgd_stop(struct ieee80211_sub_if_data
*sdata
);
1347 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data
*sdata
,
1348 __le16 fc
, bool acked
);
1349 void ieee80211_sta_restart(struct ieee80211_sub_if_data
*sdata
);
1352 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local
*local
);
1353 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
1354 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data
*sdata
,
1355 const u8
*bssid
, const u8
*addr
, u32 supp_rates
);
1356 int ieee80211_ibss_join(struct ieee80211_sub_if_data
*sdata
,
1357 struct cfg80211_ibss_params
*params
);
1358 int ieee80211_ibss_leave(struct ieee80211_sub_if_data
*sdata
);
1359 void ieee80211_ibss_work(struct ieee80211_sub_if_data
*sdata
);
1360 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1361 struct sk_buff
*skb
);
1362 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data
*sdata
,
1363 struct cfg80211_csa_settings
*csa_settings
);
1364 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data
*sdata
);
1365 void ieee80211_ibss_stop(struct ieee80211_sub_if_data
*sdata
);
1368 void ieee80211_mesh_work(struct ieee80211_sub_if_data
*sdata
);
1369 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1370 struct sk_buff
*skb
);
1371 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data
*sdata
,
1372 struct cfg80211_csa_settings
*csa_settings
,
1374 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data
*sdata
);
1376 /* scan/BSS handling */
1377 void ieee80211_scan_work(struct work_struct
*work
);
1378 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data
*sdata
,
1379 const u8
*ssid
, u8 ssid_len
,
1380 struct ieee80211_channel
*chan
,
1381 enum nl80211_bss_scan_width scan_width
);
1382 int ieee80211_request_scan(struct ieee80211_sub_if_data
*sdata
,
1383 struct cfg80211_scan_request
*req
);
1384 void ieee80211_scan_cancel(struct ieee80211_local
*local
);
1385 void ieee80211_run_deferred_scan(struct ieee80211_local
*local
);
1386 void ieee80211_scan_rx(struct ieee80211_local
*local
, struct sk_buff
*skb
);
1388 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local
*local
);
1389 struct ieee80211_bss
*
1390 ieee80211_bss_info_update(struct ieee80211_local
*local
,
1391 struct ieee80211_rx_status
*rx_status
,
1392 struct ieee80211_mgmt
*mgmt
,
1394 struct ieee802_11_elems
*elems
,
1395 struct ieee80211_channel
*channel
);
1396 void ieee80211_rx_bss_put(struct ieee80211_local
*local
,
1397 struct ieee80211_bss
*bss
);
1399 /* scheduled scan handling */
1400 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data
*sdata
,
1401 struct cfg80211_sched_scan_request
*req
);
1402 int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data
*sdata
);
1403 void ieee80211_sched_scan_stopped_work(struct work_struct
*work
);
1405 /* off-channel helpers */
1406 void ieee80211_offchannel_stop_vifs(struct ieee80211_local
*local
);
1407 void ieee80211_offchannel_return(struct ieee80211_local
*local
);
1408 void ieee80211_roc_setup(struct ieee80211_local
*local
);
1409 void ieee80211_start_next_roc(struct ieee80211_local
*local
);
1410 void ieee80211_roc_purge(struct ieee80211_local
*local
,
1411 struct ieee80211_sub_if_data
*sdata
);
1412 void ieee80211_roc_notify_destroy(struct ieee80211_roc_work
*roc
, bool free
);
1413 void ieee80211_sw_roc_work(struct work_struct
*work
);
1414 void ieee80211_handle_roc_started(struct ieee80211_roc_work
*roc
);
1416 /* channel switch handling */
1417 void ieee80211_csa_finalize_work(struct work_struct
*work
);
1419 /* interface handling */
1420 int ieee80211_iface_init(void);
1421 void ieee80211_iface_exit(void);
1422 int ieee80211_if_add(struct ieee80211_local
*local
, const char *name
,
1423 struct wireless_dev
**new_wdev
, enum nl80211_iftype type
,
1424 struct vif_params
*params
);
1425 int ieee80211_if_change_type(struct ieee80211_sub_if_data
*sdata
,
1426 enum nl80211_iftype type
);
1427 void ieee80211_if_remove(struct ieee80211_sub_if_data
*sdata
);
1428 void ieee80211_remove_interfaces(struct ieee80211_local
*local
);
1429 u32
ieee80211_idle_off(struct ieee80211_local
*local
);
1430 void ieee80211_recalc_idle(struct ieee80211_local
*local
);
1431 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data
*sdata
,
1433 int ieee80211_do_open(struct wireless_dev
*wdev
, bool coming_up
);
1434 void ieee80211_sdata_stop(struct ieee80211_sub_if_data
*sdata
);
1435 int ieee80211_add_virtual_monitor(struct ieee80211_local
*local
);
1436 void ieee80211_del_virtual_monitor(struct ieee80211_local
*local
);
1438 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data
*sdata
);
1439 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data
*sdata
);
1440 int ieee80211_assign_beacon(struct ieee80211_sub_if_data
*sdata
,
1441 struct cfg80211_beacon_data
*params
);
1443 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data
*sdata
)
1445 return test_bit(SDATA_STATE_RUNNING
, &sdata
->state
);
1449 void ieee80211_clear_tx_pending(struct ieee80211_local
*local
);
1450 void ieee80211_tx_pending(unsigned long data
);
1451 netdev_tx_t
ieee80211_monitor_start_xmit(struct sk_buff
*skb
,
1452 struct net_device
*dev
);
1453 netdev_tx_t
ieee80211_subif_start_xmit(struct sk_buff
*skb
,
1454 struct net_device
*dev
);
1455 void ieee80211_purge_tx_queue(struct ieee80211_hw
*hw
,
1456 struct sk_buff_head
*skbs
);
1459 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data
*sdata
,
1460 struct ieee80211_sta_ht_cap
*ht_cap
);
1461 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data
*sdata
,
1462 struct ieee80211_supported_band
*sband
,
1463 const struct ieee80211_ht_cap
*ht_cap_ie
,
1464 struct sta_info
*sta
);
1465 void ieee80211_send_delba(struct ieee80211_sub_if_data
*sdata
,
1466 const u8
*da
, u16 tid
,
1467 u16 initiator
, u16 reason_code
);
1468 int ieee80211_send_smps_action(struct ieee80211_sub_if_data
*sdata
,
1469 enum ieee80211_smps_mode smps
, const u8
*da
,
1471 void ieee80211_request_smps_ap_work(struct work_struct
*work
);
1472 void ieee80211_request_smps_mgd_work(struct work_struct
*work
);
1473 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old
,
1474 enum ieee80211_smps_mode smps_mode_new
);
1476 void ___ieee80211_stop_rx_ba_session(struct sta_info
*sta
, u16 tid
,
1477 u16 initiator
, u16 reason
, bool stop
);
1478 void __ieee80211_stop_rx_ba_session(struct sta_info
*sta
, u16 tid
,
1479 u16 initiator
, u16 reason
, bool stop
);
1480 void ieee80211_sta_tear_down_BA_sessions(struct sta_info
*sta
,
1481 enum ieee80211_agg_stop_reason reason
);
1482 void ieee80211_process_delba(struct ieee80211_sub_if_data
*sdata
,
1483 struct sta_info
*sta
,
1484 struct ieee80211_mgmt
*mgmt
, size_t len
);
1485 void ieee80211_process_addba_resp(struct ieee80211_local
*local
,
1486 struct sta_info
*sta
,
1487 struct ieee80211_mgmt
*mgmt
,
1489 void ieee80211_process_addba_request(struct ieee80211_local
*local
,
1490 struct sta_info
*sta
,
1491 struct ieee80211_mgmt
*mgmt
,
1494 int __ieee80211_stop_tx_ba_session(struct sta_info
*sta
, u16 tid
,
1495 enum ieee80211_agg_stop_reason reason
);
1496 int ___ieee80211_stop_tx_ba_session(struct sta_info
*sta
, u16 tid
,
1497 enum ieee80211_agg_stop_reason reason
);
1498 void ieee80211_start_tx_ba_cb(struct ieee80211_vif
*vif
, u8
*ra
, u16 tid
);
1499 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif
*vif
, u8
*ra
, u8 tid
);
1500 void ieee80211_ba_session_work(struct work_struct
*work
);
1501 void ieee80211_tx_ba_session_handle_start(struct sta_info
*sta
, int tid
);
1502 void ieee80211_release_reorder_timeout(struct sta_info
*sta
, int tid
);
1504 u8
ieee80211_mcs_to_chains(const struct ieee80211_mcs_info
*mcs
);
1508 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data
*sdata
,
1509 struct ieee80211_supported_band
*sband
,
1510 const struct ieee80211_vht_cap
*vht_cap_ie
,
1511 struct sta_info
*sta
);
1512 enum ieee80211_sta_rx_bandwidth
ieee80211_sta_cur_vht_bw(struct sta_info
*sta
);
1513 void ieee80211_sta_set_rx_nss(struct sta_info
*sta
);
1514 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data
*sdata
,
1515 struct sta_info
*sta
, u8 opmode
,
1516 enum ieee80211_band band
, bool nss_only
);
1517 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data
*sdata
,
1518 struct ieee80211_sta_vht_cap
*vht_cap
);
1520 /* Spectrum management */
1521 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data
*sdata
,
1522 struct ieee80211_mgmt
*mgmt
,
1525 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
1526 * @sdata: the sdata of the interface which has received the frame
1527 * @elems: parsed 802.11 elements received with the frame
1528 * @beacon: indicates if the frame was a beacon or probe response
1529 * @current_band: indicates the current band
1530 * @sta_flags: contains information about own capabilities and restrictions
1531 * to decide which channel switch announcements can be accepted. Only the
1532 * following subset of &enum ieee80211_sta_flags are evaluated:
1533 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
1534 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
1535 * %IEEE80211_STA_DISABLE_160MHZ.
1536 * @bssid: the currently connected bssid (for reporting)
1537 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
1538 All of them will be filled with if success only.
1539 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
1541 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data
*sdata
,
1542 struct ieee802_11_elems
*elems
, bool beacon
,
1543 enum ieee80211_band current_band
,
1544 u32 sta_flags
, u8
*bssid
,
1545 struct ieee80211_csa_ie
*csa_ie
);
1547 /* Suspend/resume and hw reconfiguration */
1548 int ieee80211_reconfig(struct ieee80211_local
*local
);
1549 void ieee80211_stop_device(struct ieee80211_local
*local
);
1551 int __ieee80211_suspend(struct ieee80211_hw
*hw
,
1552 struct cfg80211_wowlan
*wowlan
);
1554 static inline int __ieee80211_resume(struct ieee80211_hw
*hw
)
1556 struct ieee80211_local
*local
= hw_to_local(hw
);
1558 WARN(test_bit(SCAN_HW_SCANNING
, &local
->scanning
),
1559 "%s: resume with hardware scan still in progress\n",
1560 wiphy_name(hw
->wiphy
));
1562 return ieee80211_reconfig(hw_to_local(hw
));
1565 /* utility functions/constants */
1566 extern void *mac80211_wiphy_privid
; /* for wiphy privid */
1567 u8
*ieee80211_get_bssid(struct ieee80211_hdr
*hdr
, size_t len
,
1568 enum nl80211_iftype type
);
1569 int ieee80211_frame_duration(enum ieee80211_band band
, size_t len
,
1570 int rate
, int erp
, int short_preamble
,
1572 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data
*sdata
, int keyidx
,
1573 struct ieee80211_hdr
*hdr
, const u8
*tsc
,
1575 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data
*sdata
,
1577 void ieee80211_xmit(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
,
1578 enum ieee80211_band band
);
1580 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data
*sdata
,
1581 struct sk_buff
*skb
, int tid
,
1582 enum ieee80211_band band
);
1585 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data
*sdata
,
1586 struct sk_buff
*skb
, int tid
,
1587 enum ieee80211_band band
)
1590 __ieee80211_tx_skb_tid_band(sdata
, skb
, tid
, band
);
1594 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data
*sdata
,
1595 struct sk_buff
*skb
, int tid
)
1597 struct ieee80211_chanctx_conf
*chanctx_conf
;
1600 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
1601 if (WARN_ON(!chanctx_conf
)) {
1607 __ieee80211_tx_skb_tid_band(sdata
, skb
, tid
,
1608 chanctx_conf
->def
.chan
->band
);
1612 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data
*sdata
,
1613 struct sk_buff
*skb
)
1615 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1616 ieee80211_tx_skb_tid(sdata
, skb
, 7);
1619 u32
ieee802_11_parse_elems_crc(const u8
*start
, size_t len
, bool action
,
1620 struct ieee802_11_elems
*elems
,
1621 u64 filter
, u32 crc
);
1622 static inline void ieee802_11_parse_elems(const u8
*start
, size_t len
,
1624 struct ieee802_11_elems
*elems
)
1626 ieee802_11_parse_elems_crc(start
, len
, action
, elems
, 0, 0);
1629 void ieee80211_dynamic_ps_enable_work(struct work_struct
*work
);
1630 void ieee80211_dynamic_ps_disable_work(struct work_struct
*work
);
1631 void ieee80211_dynamic_ps_timer(unsigned long data
);
1632 void ieee80211_send_nullfunc(struct ieee80211_local
*local
,
1633 struct ieee80211_sub_if_data
*sdata
,
1635 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data
*sdata
,
1636 struct ieee80211_hdr
*hdr
);
1637 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data
*sdata
,
1638 struct ieee80211_hdr
*hdr
, bool ack
);
1640 void ieee80211_wake_queues_by_reason(struct ieee80211_hw
*hw
,
1641 unsigned long queues
,
1642 enum queue_stop_reason reason
);
1643 void ieee80211_stop_queues_by_reason(struct ieee80211_hw
*hw
,
1644 unsigned long queues
,
1645 enum queue_stop_reason reason
);
1646 void ieee80211_wake_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1647 enum queue_stop_reason reason
);
1648 void ieee80211_stop_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1649 enum queue_stop_reason reason
);
1650 void ieee80211_propagate_queue_wake(struct ieee80211_local
*local
, int queue
);
1651 void ieee80211_add_pending_skb(struct ieee80211_local
*local
,
1652 struct sk_buff
*skb
);
1653 void ieee80211_add_pending_skbs_fn(struct ieee80211_local
*local
,
1654 struct sk_buff_head
*skbs
,
1655 void (*fn
)(void *data
), void *data
);
1656 static inline void ieee80211_add_pending_skbs(struct ieee80211_local
*local
,
1657 struct sk_buff_head
*skbs
)
1659 ieee80211_add_pending_skbs_fn(local
, skbs
, NULL
, NULL
);
1661 void ieee80211_flush_queues(struct ieee80211_local
*local
,
1662 struct ieee80211_sub_if_data
*sdata
);
1664 void ieee80211_send_auth(struct ieee80211_sub_if_data
*sdata
,
1665 u16 transaction
, u16 auth_alg
, u16 status
,
1666 const u8
*extra
, size_t extra_len
, const u8
*bssid
,
1667 const u8
*da
, const u8
*key
, u8 key_len
, u8 key_idx
,
1669 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data
*sdata
,
1670 const u8
*bssid
, u16 stype
, u16 reason
,
1671 bool send_frame
, u8
*frame_buf
);
1672 int ieee80211_build_preq_ies(struct ieee80211_local
*local
, u8
*buffer
,
1673 size_t buffer_len
, const u8
*ie
, size_t ie_len
,
1674 enum ieee80211_band band
, u32 rate_mask
,
1675 struct cfg80211_chan_def
*chandef
);
1676 struct sk_buff
*ieee80211_build_probe_req(struct ieee80211_sub_if_data
*sdata
,
1677 u8
*dst
, u32 ratemask
,
1678 struct ieee80211_channel
*chan
,
1679 const u8
*ssid
, size_t ssid_len
,
1680 const u8
*ie
, size_t ie_len
,
1682 void ieee80211_send_probe_req(struct ieee80211_sub_if_data
*sdata
, u8
*dst
,
1683 const u8
*ssid
, size_t ssid_len
,
1684 const u8
*ie
, size_t ie_len
,
1685 u32 ratemask
, bool directed
, u32 tx_flags
,
1686 struct ieee80211_channel
*channel
, bool scan
);
1688 u32
ieee80211_sta_get_rates(struct ieee80211_sub_if_data
*sdata
,
1689 struct ieee802_11_elems
*elems
,
1690 enum ieee80211_band band
, u32
*basic_rates
);
1691 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data
*sdata
,
1692 enum ieee80211_smps_mode smps_mode
);
1693 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data
*sdata
,
1694 enum ieee80211_smps_mode smps_mode
);
1695 void ieee80211_recalc_smps(struct ieee80211_sub_if_data
*sdata
);
1697 size_t ieee80211_ie_split(const u8
*ies
, size_t ielen
,
1698 const u8
*ids
, int n_ids
, size_t offset
);
1699 size_t ieee80211_ie_split_vendor(const u8
*ies
, size_t ielen
, size_t offset
);
1700 u8
*ieee80211_ie_build_ht_cap(u8
*pos
, struct ieee80211_sta_ht_cap
*ht_cap
,
1702 u8
*ieee80211_ie_build_ht_oper(u8
*pos
, struct ieee80211_sta_ht_cap
*ht_cap
,
1703 const struct cfg80211_chan_def
*chandef
,
1705 u8
*ieee80211_ie_build_vht_cap(u8
*pos
, struct ieee80211_sta_vht_cap
*vht_cap
,
1707 int ieee80211_parse_bitrates(struct cfg80211_chan_def
*chandef
,
1708 const struct ieee80211_supported_band
*sband
,
1709 const u8
*srates
, int srates_len
, u32
*rates
);
1710 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data
*sdata
,
1711 struct sk_buff
*skb
, bool need_basic
,
1712 enum ieee80211_band band
);
1713 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data
*sdata
,
1714 struct sk_buff
*skb
, bool need_basic
,
1715 enum ieee80211_band band
);
1717 /* channel management */
1718 void ieee80211_ht_oper_to_chandef(struct ieee80211_channel
*control_chan
,
1719 const struct ieee80211_ht_operation
*ht_oper
,
1720 struct cfg80211_chan_def
*chandef
);
1721 u32
ieee80211_chandef_downgrade(struct cfg80211_chan_def
*c
);
1724 ieee80211_vif_use_channel(struct ieee80211_sub_if_data
*sdata
,
1725 const struct cfg80211_chan_def
*chandef
,
1726 enum ieee80211_chanctx_mode mode
);
1728 ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data
*sdata
,
1729 const struct cfg80211_chan_def
*chandef
,
1731 /* NOTE: only use ieee80211_vif_change_channel() for channel switch */
1733 ieee80211_vif_change_channel(struct ieee80211_sub_if_data
*sdata
,
1734 const struct cfg80211_chan_def
*chandef
,
1736 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data
*sdata
);
1737 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data
*sdata
);
1738 void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data
*sdata
,
1741 void ieee80211_recalc_smps_chanctx(struct ieee80211_local
*local
,
1742 struct ieee80211_chanctx
*chanctx
);
1743 void ieee80211_recalc_radar_chanctx(struct ieee80211_local
*local
,
1744 struct ieee80211_chanctx
*chanctx
);
1746 void ieee80211_dfs_cac_timer(unsigned long data
);
1747 void ieee80211_dfs_cac_timer_work(struct work_struct
*work
);
1748 void ieee80211_dfs_cac_cancel(struct ieee80211_local
*local
);
1749 void ieee80211_dfs_radar_detected_work(struct work_struct
*work
);
1750 int ieee80211_send_action_csa(struct ieee80211_sub_if_data
*sdata
,
1751 struct cfg80211_csa_settings
*csa_settings
);
1753 #ifdef CONFIG_MAC80211_NOINLINE
1754 #define debug_noinline noinline
1756 #define debug_noinline
1759 #endif /* IEEE80211_I_H */