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 #define TU_TO_JIFFIES(x) (usecs_to_jiffies((x) * 1024))
57 #define TU_TO_EXP_TIME(x) (jiffies + TU_TO_JIFFIES(x))
59 /* power level hasn't been configured (or set to automatic) */
60 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN
63 * Some APs experience problems when working with U-APSD. Decrease the
64 * probability of that happening by using legacy mode for all ACs but VO.
65 * The AP that caused us trouble was a Cisco 4410N. It ignores our
66 * setting, and always treats non-VO ACs as legacy.
68 #define IEEE80211_DEFAULT_UAPSD_QUEUES \
69 IEEE80211_WMM_IE_STA_QOSINFO_AC_VO
71 #define IEEE80211_DEFAULT_MAX_SP_LEN \
72 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
74 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
76 struct ieee80211_fragment_entry
{
77 unsigned long first_frag_time
;
79 unsigned int rx_queue
;
80 unsigned int last_frag
;
81 unsigned int extra_len
;
82 struct sk_buff_head skb_list
;
83 int ccmp
; /* Whether fragments were encrypted with CCMP */
84 u8 last_pn
[6]; /* PN of the last fragment if CCMP was used */
88 struct ieee80211_bss
{
89 /* don't want to look up all the time */
91 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
98 #define IEEE80211_MAX_SUPP_RATES 32
99 u8 supp_rates
[IEEE80211_MAX_SUPP_RATES
];
100 size_t supp_rates_len
;
103 * During association, we save an ERP value from a probe response so
104 * that we can feed ERP info to the driver when handling the
105 * association completes. these fields probably won't be up-to-date
106 * otherwise, you probably don't want to use them.
111 /* Keep track of the corruption of the last beacon/probe response. */
114 /* Keep track of what bits of information we have valid info for. */
119 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
120 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
121 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
123 * These are bss flags that are attached to a bss in the
124 * @corrupt_data field of &struct ieee80211_bss.
126 enum ieee80211_bss_corrupt_data_flags
{
127 IEEE80211_BSS_CORRUPT_BEACON
= BIT(0),
128 IEEE80211_BSS_CORRUPT_PROBE_RESP
= BIT(1)
132 * enum ieee80211_valid_data_flags - BSS valid data flags
133 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
134 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
135 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
137 * These are bss flags that are attached to a bss in the
138 * @valid_data field of &struct ieee80211_bss. They show which parts
139 * of the data structure were recieved as a result of an un-corrupted
140 * beacon/probe response.
142 enum ieee80211_bss_valid_data_flags
{
143 IEEE80211_BSS_VALID_WMM
= BIT(1),
144 IEEE80211_BSS_VALID_RATES
= BIT(2),
145 IEEE80211_BSS_VALID_ERP
= BIT(3)
148 typedef unsigned __bitwise__ ieee80211_tx_result
;
149 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
150 #define TX_DROP ((__force ieee80211_tx_result) 1u)
151 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
153 #define IEEE80211_TX_UNICAST BIT(1)
154 #define IEEE80211_TX_PS_BUFFERED BIT(2)
156 struct ieee80211_tx_data
{
158 struct sk_buff_head skbs
;
159 struct ieee80211_local
*local
;
160 struct ieee80211_sub_if_data
*sdata
;
161 struct sta_info
*sta
;
162 struct ieee80211_key
*key
;
168 typedef unsigned __bitwise__ ieee80211_rx_result
;
169 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
170 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
171 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
172 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
175 * enum ieee80211_packet_rx_flags - packet RX flags
176 * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
177 * (incl. multicast frames)
178 * @IEEE80211_RX_FRAGMENTED: fragmented frame
179 * @IEEE80211_RX_AMSDU: a-MSDU packet
180 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
181 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
183 * These are per-frame flags that are attached to a frame in the
184 * @rx_flags field of &struct ieee80211_rx_status.
186 enum ieee80211_packet_rx_flags
{
187 IEEE80211_RX_RA_MATCH
= BIT(1),
188 IEEE80211_RX_FRAGMENTED
= BIT(2),
189 IEEE80211_RX_AMSDU
= BIT(3),
190 IEEE80211_RX_MALFORMED_ACTION_FRM
= BIT(4),
191 IEEE80211_RX_DEFERRED_RELEASE
= BIT(5),
195 * enum ieee80211_rx_flags - RX data flags
197 * @IEEE80211_RX_CMNTR: received on cooked monitor already
198 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
199 * to cfg80211_report_obss_beacon().
201 * These flags are used across handling multiple interfaces
202 * for a single frame.
204 enum ieee80211_rx_flags
{
205 IEEE80211_RX_CMNTR
= BIT(0),
206 IEEE80211_RX_BEACON_REPORTED
= BIT(1),
209 struct ieee80211_rx_data
{
211 struct ieee80211_local
*local
;
212 struct ieee80211_sub_if_data
*sdata
;
213 struct sta_info
*sta
;
214 struct ieee80211_key
*key
;
219 * Index into sequence numbers array, 0..16
220 * since the last (16) is used for non-QoS,
221 * will be 16 on non-QoS frames.
226 * Index into the security IV/PN arrays, 0..16
227 * since the last (16) is used for CCMP-encrypted
228 * management frames, will be set to 16 on mgmt
229 * frames and 0 on non-QoS frames.
239 int head_len
, tail_len
;
240 struct rcu_head rcu_head
;
244 struct rcu_head rcu_head
;
250 /* yes, this looks ugly, but guarantees that we can later use
252 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
253 u8 tim
[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID
+ 1)];
254 struct sk_buff_head bc_buf
;
255 atomic_t num_sta_ps
; /* number of stations in PS mode */
260 struct ieee80211_if_ap
{
261 struct beacon_data __rcu
*beacon
;
262 struct probe_resp __rcu
*probe_resp
;
264 struct list_head vlans
;
267 atomic_t num_mcast_sta
; /* number of stations receiving multicast */
270 struct ieee80211_if_wds
{
271 struct sta_info
*sta
;
272 u8 remote_addr
[ETH_ALEN
];
275 struct ieee80211_if_vlan
{
276 struct list_head list
;
278 /* used for all tx if the VLAN is configured to 4-addr mode */
279 struct sta_info __rcu
*sta
;
283 __u32 fwded_mcast
; /* Mesh forwarded multicast frames */
284 __u32 fwded_unicast
; /* Mesh forwarded unicast frames */
285 __u32 fwded_frames
; /* Mesh total forwarded frames */
286 __u32 dropped_frames_ttl
; /* Not transmitted since mesh_ttl == 0*/
287 __u32 dropped_frames_no_route
; /* Not transmitted, no route found */
288 __u32 dropped_frames_congestion
;/* Not forwarded due to congestion */
291 #define PREQ_Q_F_START 0x1
292 #define PREQ_Q_F_REFRESH 0x2
293 struct mesh_preq_queue
{
294 struct list_head list
;
300 #define IEEE80211_ROC_MIN_LEFT 1
302 #define IEEE80211_ROC_MIN_LEFT (HZ/100)
305 struct ieee80211_roc_work
{
306 struct list_head list
;
307 struct list_head dependents
;
309 struct delayed_work work
;
311 struct ieee80211_sub_if_data
*sdata
;
313 struct ieee80211_channel
*chan
;
315 bool started
, abort
, hw_begun
, notified
;
317 unsigned long hw_start_time
;
319 u32 duration
, req_duration
;
320 struct sk_buff
*frame
;
321 u64 cookie
, mgmt_tx_cookie
;
324 /* flags used in struct ieee80211_if_managed.flags */
325 enum ieee80211_sta_flags
{
326 IEEE80211_STA_BEACON_POLL
= BIT(0),
327 IEEE80211_STA_CONNECTION_POLL
= BIT(1),
328 IEEE80211_STA_CONTROL_PORT
= BIT(2),
329 IEEE80211_STA_DISABLE_HT
= BIT(4),
330 IEEE80211_STA_CSA_RECEIVED
= BIT(5),
331 IEEE80211_STA_MFP_ENABLED
= BIT(6),
332 IEEE80211_STA_UAPSD_ENABLED
= BIT(7),
333 IEEE80211_STA_NULLFUNC_ACKED
= BIT(8),
334 IEEE80211_STA_RESET_SIGNAL_AVE
= BIT(9),
335 IEEE80211_STA_DISABLE_40MHZ
= BIT(10),
336 IEEE80211_STA_DISABLE_VHT
= BIT(11),
337 IEEE80211_STA_DISABLE_80P80MHZ
= BIT(12),
338 IEEE80211_STA_DISABLE_160MHZ
= BIT(13),
341 struct ieee80211_mgd_auth_data
{
342 struct cfg80211_bss
*bss
;
343 unsigned long timeout
;
345 u16 algorithm
, expected_transaction
;
347 u8 key
[WLAN_KEY_LEN_WEP104
];
351 u16 sae_trans
, sae_status
;
356 struct ieee80211_mgd_assoc_data
{
357 struct cfg80211_bss
*bss
;
358 const u8
*supp_rates
;
360 unsigned long timeout
;
364 u8 prev_bssid
[ETH_ALEN
];
365 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
369 bool have_beacon
, need_beacon
;
374 struct ieee80211_vht_cap ap_vht_cap
;
380 struct ieee80211_if_managed
{
381 struct timer_list timer
;
382 struct timer_list conn_mon_timer
;
383 struct timer_list bcn_mon_timer
;
384 struct timer_list chswitch_timer
;
385 struct work_struct monitor_work
;
386 struct work_struct chswitch_work
;
387 struct work_struct beacon_connection_loss_work
;
388 struct work_struct csa_connection_drop_work
;
390 unsigned long beacon_timeout
;
391 unsigned long probe_timeout
;
392 int probe_send_count
;
393 bool nullfunc_failed
;
394 bool connection_loss
;
397 struct cfg80211_bss
*associated
;
398 struct ieee80211_mgd_auth_data
*auth_data
;
399 struct ieee80211_mgd_assoc_data
*assoc_data
;
405 unsigned long timers_running
; /* used for quiesce/restart */
406 bool powersave
; /* powersave requested for this iface */
407 bool broken_ap
; /* AP is broken -- turn off powersave */
409 enum ieee80211_smps_mode req_smps
, /* requested smps mode */
410 driver_smps_mode
; /* smps mode request */
412 struct work_struct request_smps_work
;
416 bool beacon_crc_valid
;
420 bool status_received
;
424 IEEE80211_MFP_DISABLED
,
425 IEEE80211_MFP_OPTIONAL
,
426 IEEE80211_MFP_REQUIRED
427 } mfp
; /* management frame protection */
430 * Bitmask of enabled u-apsd queues,
431 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
434 unsigned int uapsd_queues
;
437 * Maximum number of buffered frames AP can deliver during a
438 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
439 * Needs a new association to take effect.
441 unsigned int uapsd_max_sp_len
;
443 int wmm_last_param_set
;
449 /* Signal strength from the last Beacon frame in the current BSS. */
450 int last_beacon_signal
;
453 * Weighted average of the signal strength from Beacon frames in the
454 * current BSS. This is in units of 1/16 of the signal unit to maintain
455 * accuracy and to speed up calculations, i.e., the value need to be
456 * divided by 16 to get the actual value.
458 int ave_beacon_signal
;
461 * Number of Beacon frames used in ave_beacon_signal. This can be used
462 * to avoid generating less reliable cqm events that would be based
463 * only on couple of received frames.
465 unsigned int count_beacon_signal
;
468 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
469 * that triggered a cqm event. 0 indicates that no event has been
470 * generated for the current association.
472 int last_cqm_event_signal
;
475 * State variables for keeping track of RSSI of the AP currently
476 * connected to and informing driver when RSSI has gone
477 * below/above a certain threshold.
479 int rssi_min_thold
, rssi_max_thold
;
480 int last_ave_beacon_signal
;
482 struct ieee80211_ht_cap ht_capa
; /* configured ht-cap over-rides */
483 struct ieee80211_ht_cap ht_capa_mask
; /* Valid parts of ht_capa */
486 struct ieee80211_if_ibss
{
487 struct timer_list timer
;
491 unsigned long last_scan_completed
;
502 unsigned int auth_frame_registrations
;
504 u8 bssid
[ETH_ALEN
] __aligned(2);
505 u8 ssid
[IEEE80211_MAX_SSID_LEN
];
508 struct ieee80211_channel
*channel
;
509 enum nl80211_channel_type channel_type
;
511 unsigned long ibss_join_req
;
512 /* probe response/beacon for IBSS */
513 struct sk_buff __rcu
*presp
;
516 spinlock_t incomplete_lock
;
517 struct list_head incomplete_stations
;
520 IEEE80211_IBSS_MLME_SEARCH
,
521 IEEE80211_IBSS_MLME_JOINED
,
526 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
528 * these declarations define the interface, which enables
529 * vendor-specific mesh synchronization
532 struct ieee802_11_elems
;
533 struct ieee80211_mesh_sync_ops
{
534 void (*rx_bcn_presp
)(struct ieee80211_sub_if_data
*sdata
,
536 struct ieee80211_mgmt
*mgmt
,
537 struct ieee802_11_elems
*elems
,
538 struct ieee80211_rx_status
*rx_status
);
539 void (*adjust_tbtt
)(struct ieee80211_sub_if_data
*sdata
);
540 /* add other framework functions here */
543 struct ieee80211_if_mesh
{
544 struct timer_list housekeeping_timer
;
545 struct timer_list mesh_path_timer
;
546 struct timer_list mesh_path_root_timer
;
548 unsigned long timers_running
;
550 unsigned long wrkq_flags
;
552 u8 mesh_id
[IEEE80211_MAX_MESH_ID_LEN
];
554 /* Active Path Selection Protocol Identifier */
556 /* Active Path Selection Metric Identifier */
558 /* Congestion Control Mode Identifier */
560 /* Synchronization Protocol Identifier */
562 /* Authentication Protocol Identifier */
564 /* Local mesh Sequence Number */
566 /* Last used PREQ ID */
569 /* Timestamp of last SN update */
570 unsigned long last_sn_update
;
571 /* Time when it's ok to send next PERR */
572 unsigned long next_perr
;
573 /* Timestamp of last PREQ sent */
574 unsigned long last_preq
;
575 struct mesh_rmc
*rmc
;
576 spinlock_t mesh_preq_queue_lock
;
577 struct mesh_preq_queue preq_queue
;
579 struct mesh_stats mshstats
;
580 struct mesh_config mshcfg
;
581 atomic_t estab_plinks
;
583 bool accepting_plinks
;
588 IEEE80211_MESH_SEC_NONE
= 0x0,
589 IEEE80211_MESH_SEC_AUTHED
= 0x1,
590 IEEE80211_MESH_SEC_SECURED
= 0x2,
592 /* Extensible Synchronization Framework */
593 const struct ieee80211_mesh_sync_ops
*sync_ops
;
594 s64 sync_offset_clockdrift_max
;
595 spinlock_t sync_offset_lock
;
599 #ifdef CONFIG_MAC80211_MESH
600 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
601 do { (msh)->mshstats.name++; } while (0)
603 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
608 * enum ieee80211_sub_if_data_flags - virtual interface flags
610 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
611 * @IEEE80211_SDATA_PROMISC: interface is promisc
612 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
613 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
614 * associated stations and deliver multicast frames both
615 * back to wireless media and to the local net stack.
616 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
617 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
619 enum ieee80211_sub_if_data_flags
{
620 IEEE80211_SDATA_ALLMULTI
= BIT(0),
621 IEEE80211_SDATA_PROMISC
= BIT(1),
622 IEEE80211_SDATA_OPERATING_GMODE
= BIT(2),
623 IEEE80211_SDATA_DONT_BRIDGE_PACKETS
= BIT(3),
624 IEEE80211_SDATA_DISCONNECT_RESUME
= BIT(4),
625 IEEE80211_SDATA_IN_DRIVER
= BIT(5),
629 * enum ieee80211_sdata_state_bits - virtual interface state bits
630 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
631 * mirrors netif_running() but is separate for interface type
632 * change handling while the interface is up
633 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
634 * mode, so queues are stopped
635 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
636 * to offchannel, reset when offchannel returns
638 enum ieee80211_sdata_state_bits
{
640 SDATA_STATE_OFFCHANNEL
,
641 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED
,
645 * enum ieee80211_chanctx_mode - channel context configuration mode
647 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
648 * multiple interfaces
649 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
650 * only by a single interface. This can be used for example for
651 * non-fixed channel IBSS.
653 enum ieee80211_chanctx_mode
{
654 IEEE80211_CHANCTX_SHARED
,
655 IEEE80211_CHANCTX_EXCLUSIVE
658 struct ieee80211_chanctx
{
659 struct list_head list
;
660 struct rcu_head rcu_head
;
662 enum ieee80211_chanctx_mode mode
;
666 struct ieee80211_chanctx_conf conf
;
669 struct ieee80211_sub_if_data
{
670 struct list_head list
;
672 struct wireless_dev wdev
;
675 struct list_head key_list
;
677 /* count for keys needing tailroom space allocation */
678 int crypto_tx_tailroom_needed_cnt
;
680 struct net_device
*dev
;
681 struct ieee80211_local
*local
;
687 int drop_unencrypted
;
691 /* to detect idle changes */
694 /* Fragment table for host-based reassembly */
695 struct ieee80211_fragment_entry fragments
[IEEE80211_FRAGMENT_MAX
];
696 unsigned int fragment_next
;
698 /* TID bitmap for NoAck policy */
701 /* bit field of ACM bits (BIT(802.1D tag)) */
704 struct ieee80211_key __rcu
*keys
[NUM_DEFAULT_KEYS
+ NUM_DEFAULT_MGMT_KEYS
];
705 struct ieee80211_key __rcu
*default_unicast_key
;
706 struct ieee80211_key __rcu
*default_multicast_key
;
707 struct ieee80211_key __rcu
*default_mgmt_key
;
710 __be16 control_port_protocol
;
711 bool control_port_no_encrypt
;
713 struct ieee80211_tx_queue_params tx_conf
[IEEE80211_NUM_ACS
];
715 /* used to reconfigure hardware SM PS */
716 struct work_struct recalc_smps
;
718 struct work_struct work
;
719 struct sk_buff_head skb_queue
;
722 enum ieee80211_smps_mode smps_mode
;
724 int user_power_level
; /* in dBm */
725 int ap_power_level
; /* in dBm */
728 * AP this belongs to: self in AP mode and
729 * corresponding AP in VLAN mode, NULL for
730 * all others (might be needed later in IBSS)
732 struct ieee80211_if_ap
*bss
;
734 /* bitmap of allowed (non-MCS) rate indexes for rate control */
735 u32 rc_rateidx_mask
[IEEE80211_NUM_BANDS
];
736 u8 rc_rateidx_mcs_mask
[IEEE80211_NUM_BANDS
][IEEE80211_HT_MCS_MASK_LEN
];
739 struct ieee80211_if_ap ap
;
740 struct ieee80211_if_wds wds
;
741 struct ieee80211_if_vlan vlan
;
742 struct ieee80211_if_managed mgd
;
743 struct ieee80211_if_ibss ibss
;
744 struct ieee80211_if_mesh mesh
;
748 spinlock_t cleanup_stations_lock
;
749 struct list_head cleanup_stations
;
750 struct work_struct cleanup_stations_wk
;
752 #ifdef CONFIG_MAC80211_DEBUGFS
755 struct dentry
*subdir_stations
;
756 struct dentry
*default_unicast_key
;
757 struct dentry
*default_multicast_key
;
758 struct dentry
*default_mgmt_key
;
763 struct ieee80211_bss_conf suspend_bss_conf
;
766 /* must be last, dynamically sized area in this! */
767 struct ieee80211_vif vif
;
771 struct ieee80211_sub_if_data
*vif_to_sdata(struct ieee80211_vif
*p
)
773 return container_of(p
, struct ieee80211_sub_if_data
, vif
);
776 static inline enum ieee80211_band
777 ieee80211_get_sdata_band(struct ieee80211_sub_if_data
*sdata
)
779 enum ieee80211_band band
= IEEE80211_BAND_2GHZ
;
780 struct ieee80211_chanctx_conf
*chanctx_conf
;
783 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
784 if (!WARN_ON(!chanctx_conf
))
785 band
= chanctx_conf
->def
.chan
->band
;
791 enum sdata_queue_type
{
792 IEEE80211_SDATA_QUEUE_TYPE_FRAME
= 0,
793 IEEE80211_SDATA_QUEUE_AGG_START
= 1,
794 IEEE80211_SDATA_QUEUE_AGG_STOP
= 2,
798 IEEE80211_RX_MSG
= 1,
799 IEEE80211_TX_STATUS_MSG
= 2,
800 IEEE80211_EOSP_MSG
= 3,
803 struct skb_eosp_msg_data
{
804 u8 sta
[ETH_ALEN
], iface
[ETH_ALEN
];
807 enum queue_stop_reason
{
808 IEEE80211_QUEUE_STOP_REASON_DRIVER
,
809 IEEE80211_QUEUE_STOP_REASON_PS
,
810 IEEE80211_QUEUE_STOP_REASON_CSA
,
811 IEEE80211_QUEUE_STOP_REASON_AGGREGATION
,
812 IEEE80211_QUEUE_STOP_REASON_SUSPEND
,
813 IEEE80211_QUEUE_STOP_REASON_SKB_ADD
,
816 #ifdef CONFIG_MAC80211_LEDS
817 struct tpt_led_trigger
{
818 struct led_trigger trig
;
820 const struct ieee80211_tpt_blink
*blink_table
;
821 unsigned int blink_table_len
;
822 struct timer_list timer
;
823 unsigned long prev_traffic
;
824 unsigned long tx_bytes
, rx_bytes
;
825 unsigned int active
, want
;
831 * mac80211 scan flags - currently active scan mode
833 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
834 * well be on the operating channel
835 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
836 * determine if we are on the operating channel or not
837 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
838 * channel. This should not interrupt normal traffic.
839 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
840 * that the scan completed.
841 * @SCAN_ABORTED: Set for our scan work function when the driver reported
842 * a scan complete for an aborted scan.
847 SCAN_ONCHANNEL_SCANNING
,
853 * enum mac80211_scan_state - scan state machine states
855 * @SCAN_DECISION: Main entry point to the scan state machine, this state
856 * determines if we should keep on scanning or switch back to the
858 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
859 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
860 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
862 * @SCAN_RESUME: Resume the scan and scan the next channel
863 * @SCAN_ABORT: Abort the scan and go back to operating channel
865 enum mac80211_scan_state
{
874 struct ieee80211_local
{
875 /* embed the driver visible part.
876 * don't cast (use the static inlines below), but we keep
877 * it first anyway so they become a no-op */
878 struct ieee80211_hw hw
;
880 const struct ieee80211_ops
*ops
;
883 * private workqueue to mac80211. mac80211 makes this accessible
884 * via ieee80211_queue_work()
886 struct workqueue_struct
*workqueue
;
888 unsigned long queue_stop_reasons
[IEEE80211_MAX_QUEUES
];
889 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
890 spinlock_t queue_stop_reason_lock
;
893 int monitors
, cooked_mntrs
;
894 /* number of interfaces with corresponding FIF_ flags */
895 int fif_fcsfail
, fif_plcpfail
, fif_control
, fif_other_bss
, fif_pspoll
,
898 unsigned int filter_flags
; /* FIF_* */
900 bool wiphy_ciphers_allocated
;
904 /* protects the aggregated multicast list and filter calls */
905 spinlock_t filter_lock
;
907 /* used for uploading changed mc list */
908 struct work_struct reconfig_filter
;
910 /* aggregated multicast list */
911 struct netdev_hw_addr_list mc_list
;
913 bool tim_in_locked_section
; /* see ieee80211_beacon_get() */
916 * suspended is true if we finished all the suspend _and_ we have
917 * not yet come up from resume. This is to be used by mac80211
918 * to ensure driver sanity during suspend and mac80211's own
919 * sanity. It can eventually be used for WoW as well.
924 * Resuming is true while suspended, but when we're reprogramming the
925 * hardware -- at that time it's allowed to use ieee80211_queue_work()
926 * again even though some other parts of the stack are still suspended
927 * and we still drop received frames to avoid waking the stack.
932 * quiescing is true during the suspend process _only_ to
933 * ease timer cancelling etc.
937 /* device is started */
940 /* device is during a HW reconfig */
943 /* wowlan is enabled -- don't reconfig on resume */
946 /* number of RX chains the hardware has */
949 int tx_headroom
; /* required headroom for hardware/radiotap */
951 /* Tasklet and skb queue to process calls from IRQ mode. All frames
952 * added to skb_queue will be processed, but frames in
953 * skb_queue_unreliable may be dropped if the total length of these
954 * queues increases over the limit. */
955 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
956 struct tasklet_struct tasklet
;
957 struct sk_buff_head skb_queue
;
958 struct sk_buff_head skb_queue_unreliable
;
961 * Internal FIFO queue which is shared between multiple rx path
962 * stages. Its main task is to provide a serialization mechanism,
963 * so all rx handlers can enjoy having exclusive access to their
964 * private data structures.
966 struct sk_buff_head rx_skb_queue
;
967 bool running_rx_handler
; /* protected by rx_skb_queue.lock */
971 * The mutex only protects the list, hash table and
972 * counter, reads are done with RCU.
974 struct mutex sta_mtx
;
976 unsigned long num_sta
;
977 struct list_head sta_list
;
978 struct sta_info __rcu
*sta_hash
[STA_HASH_SIZE
];
979 struct timer_list sta_cleanup
;
982 struct sk_buff_head pending
[IEEE80211_MAX_QUEUES
];
983 struct tasklet_struct tx_pending_tasklet
;
985 atomic_t agg_queue_stop
[IEEE80211_MAX_QUEUES
];
987 /* number of interfaces with corresponding IFF_ flags */
988 atomic_t iff_allmultis
, iff_promiscs
;
990 struct rate_control_ref
*rate_ctrl
;
992 struct crypto_cipher
*wep_tx_tfm
;
993 struct crypto_cipher
*wep_rx_tfm
;
997 struct list_head interfaces
;
998 struct mutex iflist_mtx
;
1001 * Key mutex, protects sdata's key_list and sta_info's
1002 * key pointers (write access, they're RCU.)
1004 struct mutex key_mtx
;
1006 /* mutex for scan and work locking */
1009 /* Scanning and BSS list */
1010 unsigned long scanning
;
1011 struct cfg80211_ssid scan_ssid
;
1012 struct cfg80211_scan_request
*int_scan_req
;
1013 struct cfg80211_scan_request
*scan_req
, *hw_scan_req
;
1014 struct ieee80211_channel
*scan_channel
;
1015 enum ieee80211_band hw_scan_band
;
1016 int scan_channel_idx
;
1018 int hw_scan_ies_bufsize
;
1020 struct work_struct sched_scan_stopped_work
;
1021 struct ieee80211_sub_if_data __rcu
*sched_scan_sdata
;
1023 unsigned long leave_oper_channel_time
;
1024 enum mac80211_scan_state next_scan_state
;
1025 struct delayed_work scan_work
;
1026 struct ieee80211_sub_if_data __rcu
*scan_sdata
;
1027 struct ieee80211_channel
*csa_channel
;
1028 /* For backward compatibility only -- do not use */
1029 struct ieee80211_channel
*_oper_channel
;
1030 enum nl80211_channel_type _oper_channel_type
;
1032 /* Temporary remain-on-channel for off-channel operations */
1033 struct ieee80211_channel
*tmp_channel
;
1035 /* channel contexts */
1036 struct list_head chanctx_list
;
1037 struct mutex chanctx_mtx
;
1040 /* dot11CountersTable */
1041 u32 dot11TransmittedFragmentCount
;
1042 u32 dot11MulticastTransmittedFrameCount
;
1043 u32 dot11FailedCount
;
1044 u32 dot11RetryCount
;
1045 u32 dot11MultipleRetryCount
;
1046 u32 dot11FrameDuplicateCount
;
1047 u32 dot11ReceivedFragmentCount
;
1048 u32 dot11MulticastReceivedFrameCount
;
1049 u32 dot11TransmittedFrameCount
;
1051 #ifdef CONFIG_MAC80211_LEDS
1052 int tx_led_counter
, rx_led_counter
;
1053 struct led_trigger
*tx_led
, *rx_led
, *assoc_led
, *radio_led
;
1054 struct tpt_led_trigger
*tpt_led_trigger
;
1055 char tx_led_name
[32], rx_led_name
[32],
1056 assoc_led_name
[32], radio_led_name
[32];
1059 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1060 /* TX/RX handler statistics */
1061 unsigned int tx_handlers_drop
;
1062 unsigned int tx_handlers_queued
;
1063 unsigned int tx_handlers_drop_unencrypted
;
1064 unsigned int tx_handlers_drop_fragment
;
1065 unsigned int tx_handlers_drop_wep
;
1066 unsigned int tx_handlers_drop_not_assoc
;
1067 unsigned int tx_handlers_drop_unauth_port
;
1068 unsigned int rx_handlers_drop
;
1069 unsigned int rx_handlers_queued
;
1070 unsigned int rx_handlers_drop_nullfunc
;
1071 unsigned int rx_handlers_drop_defrag
;
1072 unsigned int rx_handlers_drop_short
;
1073 unsigned int tx_expand_skb_head
;
1074 unsigned int tx_expand_skb_head_cloned
;
1075 unsigned int rx_expand_skb_head
;
1076 unsigned int rx_expand_skb_head2
;
1077 unsigned int rx_handlers_fragments
;
1078 unsigned int tx_status_drop
;
1079 #define I802_DEBUG_INC(c) (c)++
1080 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1081 #define I802_DEBUG_INC(c) do { } while (0)
1082 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1085 int total_ps_buffered
; /* total number of all buffered unicast and
1086 * multicast packets for power saving stations
1090 bool offchannel_ps_enabled
;
1092 * PS can only be enabled when we have exactly one managed
1093 * interface (and monitors) in PS, this then points there.
1095 struct ieee80211_sub_if_data
*ps_sdata
;
1096 struct work_struct dynamic_ps_enable_work
;
1097 struct work_struct dynamic_ps_disable_work
;
1098 struct timer_list dynamic_ps_timer
;
1099 struct notifier_block network_latency_notifier
;
1100 struct notifier_block ifa_notifier
;
1101 struct notifier_block ifa6_notifier
;
1104 * The dynamic ps timeout configured from user space via WEXT -
1105 * this will override whatever chosen by mac80211 internally.
1107 int dynamic_ps_forced_timeout
;
1108 int dynamic_ps_user_timeout
;
1109 bool disable_dynamic_ps
;
1111 int user_power_level
; /* in dBm, for all interfaces */
1113 enum ieee80211_smps_mode smps_mode
;
1115 struct work_struct restart_work
;
1117 #ifdef CONFIG_MAC80211_DEBUGFS
1118 struct local_debugfsdentries
{
1119 struct dentry
*rcdir
;
1120 struct dentry
*keys
;
1125 * Remain-on-channel support
1127 struct list_head roc_list
;
1128 struct work_struct hw_roc_start
, hw_roc_done
;
1129 unsigned long hw_roc_start_time
;
1130 u64 roc_cookie_counter
;
1132 struct idr ack_status_frames
;
1133 spinlock_t ack_status_lock
;
1135 struct ieee80211_sub_if_data __rcu
*p2p_sdata
;
1137 /* dummy netdev for use w/ NAPI */
1138 struct net_device napi_dev
;
1140 struct napi_struct napi
;
1142 /* virtual monitor interface */
1143 struct ieee80211_sub_if_data __rcu
*monitor_sdata
;
1144 struct cfg80211_chan_def monitor_chandef
;
1147 static inline struct ieee80211_sub_if_data
*
1148 IEEE80211_DEV_TO_SUB_IF(struct net_device
*dev
)
1150 return netdev_priv(dev
);
1153 static inline struct ieee80211_sub_if_data
*
1154 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev
*wdev
)
1156 return container_of(wdev
, struct ieee80211_sub_if_data
, wdev
);
1159 /* this struct represents 802.11n's RA/TID combination */
1160 struct ieee80211_ra_tid
{
1165 /* Parsed Information Elements */
1166 struct ieee802_11_elems
{
1170 /* pointers to IEs */
1176 struct ieee80211_tim_ie
*tim
;
1185 struct ieee80211_ht_cap
*ht_cap_elem
;
1186 struct ieee80211_ht_operation
*ht_operation
;
1187 struct ieee80211_vht_cap
*vht_cap_elem
;
1188 struct ieee80211_vht_operation
*vht_operation
;
1189 struct ieee80211_meshconf_ie
*mesh_config
;
1195 struct ieee80211_rann_ie
*rann
;
1196 struct ieee80211_channel_sw_ie
*ch_switch_ie
;
1198 u8
*pwr_constr_elem
;
1199 u8
*quiet_elem
; /* first quite element */
1202 /* length of them, respectively */
1214 u8 ext_supp_rates_len
;
1222 u8 country_elem_len
;
1224 u8 num_of_quiet_elem
; /* can be more the one */
1227 /* whether a parse error occurred while retrieving these elements */
1231 static inline struct ieee80211_local
*hw_to_local(
1232 struct ieee80211_hw
*hw
)
1234 return container_of(hw
, struct ieee80211_local
, hw
);
1238 static inline int ieee80211_bssid_match(const u8
*raddr
, const u8
*addr
)
1240 return ether_addr_equal(raddr
, addr
) ||
1241 is_broadcast_ether_addr(raddr
);
1245 ieee80211_have_rx_timestamp(struct ieee80211_rx_status
*status
)
1247 WARN_ON_ONCE(status
->flag
& RX_FLAG_MACTIME_START
&&
1248 status
->flag
& RX_FLAG_MACTIME_END
);
1249 return status
->flag
& (RX_FLAG_MACTIME_START
| RX_FLAG_MACTIME_END
);
1252 u64
ieee80211_calculate_rx_timestamp(struct ieee80211_local
*local
,
1253 struct ieee80211_rx_status
*status
,
1254 unsigned int mpdu_len
,
1255 unsigned int mpdu_offset
);
1256 int ieee80211_hw_config(struct ieee80211_local
*local
, u32 changed
);
1257 void ieee80211_tx_set_protected(struct ieee80211_tx_data
*tx
);
1258 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data
*sdata
,
1260 void ieee80211_configure_filter(struct ieee80211_local
*local
);
1261 u32
ieee80211_reset_erp_info(struct ieee80211_sub_if_data
*sdata
);
1264 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
1265 int ieee80211_mgd_auth(struct ieee80211_sub_if_data
*sdata
,
1266 struct cfg80211_auth_request
*req
);
1267 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data
*sdata
,
1268 struct cfg80211_assoc_request
*req
);
1269 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data
*sdata
,
1270 struct cfg80211_deauth_request
*req
);
1271 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data
*sdata
,
1272 struct cfg80211_disassoc_request
*req
);
1273 void ieee80211_send_pspoll(struct ieee80211_local
*local
,
1274 struct ieee80211_sub_if_data
*sdata
);
1275 void ieee80211_recalc_ps(struct ieee80211_local
*local
, s32 latency
);
1276 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data
*sdata
);
1277 int ieee80211_max_network_latency(struct notifier_block
*nb
,
1278 unsigned long data
, void *dummy
);
1279 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data
*sdata
);
1280 void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data
*sdata
,
1281 struct ieee80211_channel_sw_ie
*sw_elem
,
1282 struct ieee80211_bss
*bss
,
1284 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data
*sdata
);
1285 void ieee80211_sta_restart(struct ieee80211_sub_if_data
*sdata
);
1286 void ieee80211_sta_work(struct ieee80211_sub_if_data
*sdata
);
1287 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1288 struct sk_buff
*skb
);
1289 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data
*sdata
);
1290 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data
*sdata
);
1291 void ieee80211_mgd_stop(struct ieee80211_sub_if_data
*sdata
);
1292 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data
*sdata
,
1293 __le16 fc
, bool acked
);
1296 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local
*local
);
1297 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data
*sdata
);
1298 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data
*sdata
,
1299 const u8
*bssid
, const u8
*addr
, u32 supp_rates
);
1300 int ieee80211_ibss_join(struct ieee80211_sub_if_data
*sdata
,
1301 struct cfg80211_ibss_params
*params
);
1302 int ieee80211_ibss_leave(struct ieee80211_sub_if_data
*sdata
);
1303 void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data
*sdata
);
1304 void ieee80211_ibss_restart(struct ieee80211_sub_if_data
*sdata
);
1305 void ieee80211_ibss_work(struct ieee80211_sub_if_data
*sdata
);
1306 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1307 struct sk_buff
*skb
);
1310 void ieee80211_mesh_work(struct ieee80211_sub_if_data
*sdata
);
1311 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data
*sdata
,
1312 struct sk_buff
*skb
);
1314 /* scan/BSS handling */
1315 void ieee80211_scan_work(struct work_struct
*work
);
1316 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data
*sdata
,
1317 const u8
*ssid
, u8 ssid_len
,
1318 struct ieee80211_channel
*chan
);
1319 int ieee80211_request_scan(struct ieee80211_sub_if_data
*sdata
,
1320 struct cfg80211_scan_request
*req
);
1321 void ieee80211_scan_cancel(struct ieee80211_local
*local
);
1322 void ieee80211_run_deferred_scan(struct ieee80211_local
*local
);
1323 void ieee80211_scan_rx(struct ieee80211_local
*local
, struct sk_buff
*skb
);
1325 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local
*local
);
1326 struct ieee80211_bss
*
1327 ieee80211_bss_info_update(struct ieee80211_local
*local
,
1328 struct ieee80211_rx_status
*rx_status
,
1329 struct ieee80211_mgmt
*mgmt
,
1331 struct ieee802_11_elems
*elems
,
1332 struct ieee80211_channel
*channel
);
1333 void ieee80211_rx_bss_put(struct ieee80211_local
*local
,
1334 struct ieee80211_bss
*bss
);
1336 /* scheduled scan handling */
1337 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data
*sdata
,
1338 struct cfg80211_sched_scan_request
*req
);
1339 int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data
*sdata
);
1340 void ieee80211_sched_scan_stopped_work(struct work_struct
*work
);
1342 /* off-channel helpers */
1343 void ieee80211_offchannel_stop_vifs(struct ieee80211_local
*local
);
1344 void ieee80211_offchannel_return(struct ieee80211_local
*local
);
1345 void ieee80211_roc_setup(struct ieee80211_local
*local
);
1346 void ieee80211_start_next_roc(struct ieee80211_local
*local
);
1347 void ieee80211_roc_purge(struct ieee80211_sub_if_data
*sdata
);
1348 void ieee80211_roc_notify_destroy(struct ieee80211_roc_work
*roc
);
1349 void ieee80211_sw_roc_work(struct work_struct
*work
);
1350 void ieee80211_handle_roc_started(struct ieee80211_roc_work
*roc
);
1352 /* interface handling */
1353 int ieee80211_iface_init(void);
1354 void ieee80211_iface_exit(void);
1355 int ieee80211_if_add(struct ieee80211_local
*local
, const char *name
,
1356 struct wireless_dev
**new_wdev
, enum nl80211_iftype type
,
1357 struct vif_params
*params
);
1358 int ieee80211_if_change_type(struct ieee80211_sub_if_data
*sdata
,
1359 enum nl80211_iftype type
);
1360 void ieee80211_if_remove(struct ieee80211_sub_if_data
*sdata
);
1361 void ieee80211_remove_interfaces(struct ieee80211_local
*local
);
1362 void ieee80211_recalc_idle(struct ieee80211_local
*local
);
1363 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data
*sdata
,
1365 int ieee80211_do_open(struct wireless_dev
*wdev
, bool coming_up
);
1366 void ieee80211_sdata_stop(struct ieee80211_sub_if_data
*sdata
);
1368 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data
*sdata
);
1369 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data
*sdata
);
1371 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data
*sdata
)
1373 return test_bit(SDATA_STATE_RUNNING
, &sdata
->state
);
1377 void ieee80211_clear_tx_pending(struct ieee80211_local
*local
);
1378 void ieee80211_tx_pending(unsigned long data
);
1379 netdev_tx_t
ieee80211_monitor_start_xmit(struct sk_buff
*skb
,
1380 struct net_device
*dev
);
1381 netdev_tx_t
ieee80211_subif_start_xmit(struct sk_buff
*skb
,
1382 struct net_device
*dev
);
1383 void ieee80211_purge_tx_queue(struct ieee80211_hw
*hw
,
1384 struct sk_buff_head
*skbs
);
1387 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data
*sdata
,
1388 struct ieee80211_sta_ht_cap
*ht_cap
);
1389 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data
*sdata
,
1390 struct ieee80211_supported_band
*sband
,
1391 struct ieee80211_ht_cap
*ht_cap_ie
,
1392 struct ieee80211_sta_ht_cap
*ht_cap
);
1393 void ieee80211_send_delba(struct ieee80211_sub_if_data
*sdata
,
1394 const u8
*da
, u16 tid
,
1395 u16 initiator
, u16 reason_code
);
1396 int ieee80211_send_smps_action(struct ieee80211_sub_if_data
*sdata
,
1397 enum ieee80211_smps_mode smps
, const u8
*da
,
1399 void ieee80211_request_smps_work(struct work_struct
*work
);
1401 void ___ieee80211_stop_rx_ba_session(struct sta_info
*sta
, u16 tid
,
1402 u16 initiator
, u16 reason
, bool stop
);
1403 void __ieee80211_stop_rx_ba_session(struct sta_info
*sta
, u16 tid
,
1404 u16 initiator
, u16 reason
, bool stop
);
1405 void ieee80211_sta_tear_down_BA_sessions(struct sta_info
*sta
,
1406 enum ieee80211_agg_stop_reason reason
);
1407 void ieee80211_process_delba(struct ieee80211_sub_if_data
*sdata
,
1408 struct sta_info
*sta
,
1409 struct ieee80211_mgmt
*mgmt
, size_t len
);
1410 void ieee80211_process_addba_resp(struct ieee80211_local
*local
,
1411 struct sta_info
*sta
,
1412 struct ieee80211_mgmt
*mgmt
,
1414 void ieee80211_process_addba_request(struct ieee80211_local
*local
,
1415 struct sta_info
*sta
,
1416 struct ieee80211_mgmt
*mgmt
,
1419 int __ieee80211_stop_tx_ba_session(struct sta_info
*sta
, u16 tid
,
1420 enum ieee80211_agg_stop_reason reason
);
1421 int ___ieee80211_stop_tx_ba_session(struct sta_info
*sta
, u16 tid
,
1422 enum ieee80211_agg_stop_reason reason
);
1423 void ieee80211_start_tx_ba_cb(struct ieee80211_vif
*vif
, u8
*ra
, u16 tid
);
1424 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif
*vif
, u8
*ra
, u8 tid
);
1425 void ieee80211_ba_session_work(struct work_struct
*work
);
1426 void ieee80211_tx_ba_session_handle_start(struct sta_info
*sta
, int tid
);
1427 void ieee80211_release_reorder_timeout(struct sta_info
*sta
, int tid
);
1429 u8
ieee80211_mcs_to_chains(const struct ieee80211_mcs_info
*mcs
);
1432 void ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data
*sdata
,
1433 struct ieee80211_supported_band
*sband
,
1434 struct ieee80211_vht_cap
*vht_cap_ie
,
1435 struct ieee80211_sta_vht_cap
*vht_cap
);
1436 /* Spectrum management */
1437 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data
*sdata
,
1438 struct ieee80211_mgmt
*mgmt
,
1441 /* Suspend/resume and hw reconfiguration */
1442 int ieee80211_reconfig(struct ieee80211_local
*local
);
1443 void ieee80211_stop_device(struct ieee80211_local
*local
);
1445 int __ieee80211_suspend(struct ieee80211_hw
*hw
,
1446 struct cfg80211_wowlan
*wowlan
);
1448 static inline int __ieee80211_resume(struct ieee80211_hw
*hw
)
1450 struct ieee80211_local
*local
= hw_to_local(hw
);
1452 WARN(test_bit(SCAN_HW_SCANNING
, &local
->scanning
),
1453 "%s: resume with hardware scan still in progress\n",
1454 wiphy_name(hw
->wiphy
));
1456 return ieee80211_reconfig(hw_to_local(hw
));
1459 /* utility functions/constants */
1460 extern void *mac80211_wiphy_privid
; /* for wiphy privid */
1461 u8
*ieee80211_get_bssid(struct ieee80211_hdr
*hdr
, size_t len
,
1462 enum nl80211_iftype type
);
1463 int ieee80211_frame_duration(enum ieee80211_band band
, size_t len
,
1464 int rate
, int erp
, int short_preamble
);
1465 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data
*sdata
, int keyidx
,
1466 struct ieee80211_hdr
*hdr
, const u8
*tsc
,
1468 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data
*sdata
,
1470 void ieee80211_xmit(struct ieee80211_sub_if_data
*sdata
, struct sk_buff
*skb
,
1471 enum ieee80211_band band
);
1473 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data
*sdata
,
1474 struct sk_buff
*skb
, int tid
,
1475 enum ieee80211_band band
);
1478 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data
*sdata
,
1479 struct sk_buff
*skb
, int tid
,
1480 enum ieee80211_band band
)
1483 __ieee80211_tx_skb_tid_band(sdata
, skb
, tid
, band
);
1487 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data
*sdata
,
1488 struct sk_buff
*skb
, int tid
)
1490 struct ieee80211_chanctx_conf
*chanctx_conf
;
1493 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
1494 if (WARN_ON(!chanctx_conf
)) {
1500 __ieee80211_tx_skb_tid_band(sdata
, skb
, tid
,
1501 chanctx_conf
->def
.chan
->band
);
1505 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data
*sdata
,
1506 struct sk_buff
*skb
)
1508 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1509 ieee80211_tx_skb_tid(sdata
, skb
, 7);
1512 void ieee802_11_parse_elems(u8
*start
, size_t len
,
1513 struct ieee802_11_elems
*elems
);
1514 u32
ieee802_11_parse_elems_crc(u8
*start
, size_t len
,
1515 struct ieee802_11_elems
*elems
,
1516 u64 filter
, u32 crc
);
1517 u32
ieee80211_mandatory_rates(struct ieee80211_local
*local
,
1518 enum ieee80211_band band
);
1520 void ieee80211_dynamic_ps_enable_work(struct work_struct
*work
);
1521 void ieee80211_dynamic_ps_disable_work(struct work_struct
*work
);
1522 void ieee80211_dynamic_ps_timer(unsigned long data
);
1523 void ieee80211_send_nullfunc(struct ieee80211_local
*local
,
1524 struct ieee80211_sub_if_data
*sdata
,
1526 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data
*sdata
,
1527 struct ieee80211_hdr
*hdr
);
1528 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data
*sdata
,
1529 struct ieee80211_hdr
*hdr
, bool ack
);
1531 void ieee80211_wake_queues_by_reason(struct ieee80211_hw
*hw
,
1532 enum queue_stop_reason reason
);
1533 void ieee80211_stop_queues_by_reason(struct ieee80211_hw
*hw
,
1534 enum queue_stop_reason reason
);
1535 void ieee80211_wake_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1536 enum queue_stop_reason reason
);
1537 void ieee80211_stop_queue_by_reason(struct ieee80211_hw
*hw
, int queue
,
1538 enum queue_stop_reason reason
);
1539 void ieee80211_propagate_queue_wake(struct ieee80211_local
*local
, int queue
);
1540 void ieee80211_add_pending_skb(struct ieee80211_local
*local
,
1541 struct sk_buff
*skb
);
1542 void ieee80211_add_pending_skbs_fn(struct ieee80211_local
*local
,
1543 struct sk_buff_head
*skbs
,
1544 void (*fn
)(void *data
), void *data
);
1545 static inline void ieee80211_add_pending_skbs(struct ieee80211_local
*local
,
1546 struct sk_buff_head
*skbs
)
1548 ieee80211_add_pending_skbs_fn(local
, skbs
, NULL
, NULL
);
1551 void ieee80211_send_auth(struct ieee80211_sub_if_data
*sdata
,
1552 u16 transaction
, u16 auth_alg
, u16 status
,
1553 u8
*extra
, size_t extra_len
, const u8
*bssid
,
1554 const u8
*da
, const u8
*key
, u8 key_len
, u8 key_idx
,
1556 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data
*sdata
,
1557 const u8
*bssid
, u16 stype
, u16 reason
,
1558 bool send_frame
, u8
*frame_buf
);
1559 int ieee80211_build_preq_ies(struct ieee80211_local
*local
, u8
*buffer
,
1560 size_t buffer_len
, const u8
*ie
, size_t ie_len
,
1561 enum ieee80211_band band
, u32 rate_mask
,
1563 struct sk_buff
*ieee80211_build_probe_req(struct ieee80211_sub_if_data
*sdata
,
1564 u8
*dst
, u32 ratemask
,
1565 struct ieee80211_channel
*chan
,
1566 const u8
*ssid
, size_t ssid_len
,
1567 const u8
*ie
, size_t ie_len
,
1569 void ieee80211_send_probe_req(struct ieee80211_sub_if_data
*sdata
, u8
*dst
,
1570 const u8
*ssid
, size_t ssid_len
,
1571 const u8
*ie
, size_t ie_len
,
1572 u32 ratemask
, bool directed
, u32 tx_flags
,
1573 struct ieee80211_channel
*channel
, bool scan
);
1575 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data
*sdata
,
1576 const size_t supp_rates_len
,
1577 const u8
*supp_rates
);
1578 u32
ieee80211_sta_get_rates(struct ieee80211_local
*local
,
1579 struct ieee802_11_elems
*elems
,
1580 enum ieee80211_band band
, u32
*basic_rates
);
1581 int __ieee80211_request_smps(struct ieee80211_sub_if_data
*sdata
,
1582 enum ieee80211_smps_mode smps_mode
);
1583 void ieee80211_recalc_smps(struct ieee80211_sub_if_data
*sdata
);
1585 size_t ieee80211_ie_split(const u8
*ies
, size_t ielen
,
1586 const u8
*ids
, int n_ids
, size_t offset
);
1587 size_t ieee80211_ie_split_vendor(const u8
*ies
, size_t ielen
, size_t offset
);
1588 u8
*ieee80211_ie_build_ht_cap(u8
*pos
, struct ieee80211_sta_ht_cap
*ht_cap
,
1590 u8
*ieee80211_ie_build_ht_oper(u8
*pos
, struct ieee80211_sta_ht_cap
*ht_cap
,
1591 const struct cfg80211_chan_def
*chandef
,
1593 u8
*ieee80211_ie_build_vht_cap(u8
*pos
, struct ieee80211_sta_vht_cap
*vht_cap
,
1595 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data
*sdata
,
1596 struct sk_buff
*skb
, bool need_basic
,
1597 enum ieee80211_band band
);
1598 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data
*sdata
,
1599 struct sk_buff
*skb
, bool need_basic
,
1600 enum ieee80211_band band
);
1602 /* channel management */
1603 void ieee80211_ht_oper_to_chandef(struct ieee80211_channel
*control_chan
,
1604 struct ieee80211_ht_operation
*ht_oper
,
1605 struct cfg80211_chan_def
*chandef
);
1608 ieee80211_vif_use_channel(struct ieee80211_sub_if_data
*sdata
,
1609 const struct cfg80211_chan_def
*chandef
,
1610 enum ieee80211_chanctx_mode mode
);
1611 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data
*sdata
);
1612 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data
*sdata
);
1614 void ieee80211_recalc_smps_chanctx(struct ieee80211_local
*local
,
1615 struct ieee80211_chanctx
*chanctx
);
1617 #ifdef CONFIG_MAC80211_NOINLINE
1618 #define debug_noinline noinline
1620 #define debug_noinline
1623 #endif /* IEEE80211_I_H */