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 u32 device_ts_beacon, device_ts_presp;
94 #define IEEE80211_MAX_SUPP_RATES 32
95 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
96 size_t supp_rates_len;
97 struct ieee80211_rate *beacon_rate;
100 * During association, we save an ERP value from a probe response so
101 * that we can feed ERP info to the driver when handling the
102 * association completes. these fields probably won't be up-to-date
103 * otherwise, you probably don't want to use them.
108 /* Keep track of the corruption of the last beacon/probe response. */
111 /* Keep track of what bits of information we have valid info for. */
116 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
117 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
118 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
120 * These are bss flags that are attached to a bss in the
121 * @corrupt_data field of &struct ieee80211_bss.
123 enum ieee80211_bss_corrupt_data_flags {
124 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
125 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
129 * enum ieee80211_valid_data_flags - BSS valid data flags
130 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
131 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
132 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
134 * These are bss flags that are attached to a bss in the
135 * @valid_data field of &struct ieee80211_bss. They show which parts
136 * of the data structure were recieved as a result of an un-corrupted
137 * beacon/probe response.
139 enum ieee80211_bss_valid_data_flags {
140 IEEE80211_BSS_VALID_WMM = BIT(1),
141 IEEE80211_BSS_VALID_RATES = BIT(2),
142 IEEE80211_BSS_VALID_ERP = BIT(3)
145 typedef unsigned __bitwise__ ieee80211_tx_result;
146 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
147 #define TX_DROP ((__force ieee80211_tx_result) 1u)
148 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
150 #define IEEE80211_TX_UNICAST BIT(1)
151 #define IEEE80211_TX_PS_BUFFERED BIT(2)
153 struct ieee80211_tx_data {
155 struct sk_buff_head skbs;
156 struct ieee80211_local *local;
157 struct ieee80211_sub_if_data *sdata;
158 struct sta_info *sta;
159 struct ieee80211_key *key;
160 struct ieee80211_tx_rate rate;
166 typedef unsigned __bitwise__ ieee80211_rx_result;
167 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
168 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
169 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
170 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
173 * enum ieee80211_packet_rx_flags - packet RX flags
174 * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
175 * (incl. multicast frames)
176 * @IEEE80211_RX_FRAGMENTED: fragmented frame
177 * @IEEE80211_RX_AMSDU: a-MSDU packet
178 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
179 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
181 * These are per-frame flags that are attached to a frame in the
182 * @rx_flags field of &struct ieee80211_rx_status.
184 enum ieee80211_packet_rx_flags {
185 IEEE80211_RX_RA_MATCH = BIT(1),
186 IEEE80211_RX_FRAGMENTED = BIT(2),
187 IEEE80211_RX_AMSDU = BIT(3),
188 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
189 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
193 * enum ieee80211_rx_flags - RX data flags
195 * @IEEE80211_RX_CMNTR: received on cooked monitor already
196 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
197 * to cfg80211_report_obss_beacon().
199 * These flags are used across handling multiple interfaces
200 * for a single frame.
202 enum ieee80211_rx_flags {
203 IEEE80211_RX_CMNTR = BIT(0),
204 IEEE80211_RX_BEACON_REPORTED = BIT(1),
207 struct ieee80211_rx_data {
209 struct ieee80211_local *local;
210 struct ieee80211_sub_if_data *sdata;
211 struct sta_info *sta;
212 struct ieee80211_key *key;
217 * Index into sequence numbers array, 0..16
218 * since the last (16) is used for non-QoS,
219 * will be 16 on non-QoS frames.
224 * Index into the security IV/PN arrays, 0..16
225 * since the last (16) is used for CCMP-encrypted
226 * management frames, will be set to 16 on mgmt
227 * frames and 0 on non-QoS frames.
237 int head_len, tail_len;
238 struct rcu_head rcu_head;
242 struct rcu_head rcu_head;
248 /* yes, this looks ugly, but guarantees that we can later use
250 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
251 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
252 struct sk_buff_head bc_buf;
253 atomic_t num_sta_ps; /* number of stations in PS mode */
258 struct ieee80211_if_ap {
259 struct beacon_data __rcu *beacon;
260 struct probe_resp __rcu *probe_resp;
262 struct list_head vlans;
265 atomic_t num_mcast_sta; /* number of stations receiving multicast */
268 struct ieee80211_if_wds {
269 struct sta_info *sta;
270 u8 remote_addr[ETH_ALEN];
273 struct ieee80211_if_vlan {
274 struct list_head list;
276 /* used for all tx if the VLAN is configured to 4-addr mode */
277 struct sta_info __rcu *sta;
281 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
282 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
283 __u32 fwded_frames; /* Mesh total forwarded frames */
284 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
285 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
286 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
289 #define PREQ_Q_F_START 0x1
290 #define PREQ_Q_F_REFRESH 0x2
291 struct mesh_preq_queue {
292 struct list_head list;
298 #define IEEE80211_ROC_MIN_LEFT 1
300 #define IEEE80211_ROC_MIN_LEFT (HZ/100)
303 struct ieee80211_roc_work {
304 struct list_head list;
305 struct list_head dependents;
307 struct delayed_work work;
309 struct ieee80211_sub_if_data *sdata;
311 struct ieee80211_channel *chan;
313 bool started, abort, hw_begun, notified;
316 unsigned long hw_start_time;
318 u32 duration, req_duration;
319 struct sk_buff *frame;
320 u64 cookie, mgmt_tx_cookie;
321 enum ieee80211_roc_type type;
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];
350 bool timeout_started;
352 u16 sae_trans, sae_status;
357 struct ieee80211_mgd_assoc_data {
358 struct cfg80211_bss *bss;
359 const u8 *supp_rates;
361 unsigned long timeout;
365 u8 prev_bssid[ETH_ALEN];
366 u8 ssid[IEEE80211_MAX_SSID_LEN];
372 bool timeout_started;
376 struct ieee80211_vht_cap ap_vht_cap;
382 struct ieee80211_if_managed {
383 struct timer_list timer;
384 struct timer_list conn_mon_timer;
385 struct timer_list bcn_mon_timer;
386 struct timer_list chswitch_timer;
387 struct work_struct monitor_work;
388 struct work_struct chswitch_work;
389 struct work_struct beacon_connection_loss_work;
390 struct work_struct csa_connection_drop_work;
392 unsigned long beacon_timeout;
393 unsigned long probe_timeout;
394 int probe_send_count;
395 bool nullfunc_failed;
396 bool connection_loss;
398 struct cfg80211_bss *associated;
399 struct ieee80211_mgd_auth_data *auth_data;
400 struct ieee80211_mgd_assoc_data *assoc_data;
406 bool powersave; /* powersave requested for this iface */
407 bool broken_ap; /* AP is broken -- turn off powersave */
410 enum ieee80211_smps_mode req_smps, /* requested smps mode */
411 driver_smps_mode; /* smps mode request */
413 struct work_struct request_smps_work;
417 bool beacon_crc_valid;
421 bool status_received;
425 IEEE80211_MFP_DISABLED,
426 IEEE80211_MFP_OPTIONAL,
427 IEEE80211_MFP_REQUIRED
428 } mfp; /* management frame protection */
431 * Bitmask of enabled u-apsd queues,
432 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
435 unsigned int uapsd_queues;
438 * Maximum number of buffered frames AP can deliver during a
439 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
440 * Needs a new association to take effect.
442 unsigned int uapsd_max_sp_len;
444 int wmm_last_param_set;
450 /* Signal strength from the last Beacon frame in the current BSS. */
451 int last_beacon_signal;
454 * Weighted average of the signal strength from Beacon frames in the
455 * current BSS. This is in units of 1/16 of the signal unit to maintain
456 * accuracy and to speed up calculations, i.e., the value need to be
457 * divided by 16 to get the actual value.
459 int ave_beacon_signal;
462 * Number of Beacon frames used in ave_beacon_signal. This can be used
463 * to avoid generating less reliable cqm events that would be based
464 * only on couple of received frames.
466 unsigned int count_beacon_signal;
469 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
470 * that triggered a cqm event. 0 indicates that no event has been
471 * generated for the current association.
473 int last_cqm_event_signal;
476 * State variables for keeping track of RSSI of the AP currently
477 * connected to and informing driver when RSSI has gone
478 * below/above a certain threshold.
480 int rssi_min_thold, rssi_max_thold;
481 int last_ave_beacon_signal;
483 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
484 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
485 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
486 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
489 struct ieee80211_if_ibss {
490 struct timer_list timer;
492 unsigned long last_scan_completed;
502 u8 bssid[ETH_ALEN] __aligned(2);
503 u8 ssid[IEEE80211_MAX_SSID_LEN];
506 struct cfg80211_chan_def chandef;
508 unsigned long ibss_join_req;
509 /* probe response/beacon for IBSS */
510 struct beacon_data __rcu *presp;
512 spinlock_t incomplete_lock;
513 struct list_head incomplete_stations;
516 IEEE80211_IBSS_MLME_SEARCH,
517 IEEE80211_IBSS_MLME_JOINED,
522 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
524 * these declarations define the interface, which enables
525 * vendor-specific mesh synchronization
528 struct ieee802_11_elems;
529 struct ieee80211_mesh_sync_ops {
530 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
532 struct ieee80211_mgmt *mgmt,
533 struct ieee802_11_elems *elems,
534 struct ieee80211_rx_status *rx_status);
535 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata);
536 /* add other framework functions here */
539 struct ieee80211_if_mesh {
540 struct timer_list housekeeping_timer;
541 struct timer_list mesh_path_timer;
542 struct timer_list mesh_path_root_timer;
544 unsigned long wrkq_flags;
545 unsigned long mbss_changed;
547 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
549 /* Active Path Selection Protocol Identifier */
551 /* Active Path Selection Metric Identifier */
553 /* Congestion Control Mode Identifier */
555 /* Synchronization Protocol Identifier */
557 /* Authentication Protocol Identifier */
559 /* Local mesh Sequence Number */
561 /* Last used PREQ ID */
564 /* Timestamp of last SN update */
565 unsigned long last_sn_update;
566 /* Time when it's ok to send next PERR */
567 unsigned long next_perr;
568 /* Timestamp of last PREQ sent */
569 unsigned long last_preq;
570 struct mesh_rmc *rmc;
571 spinlock_t mesh_preq_queue_lock;
572 struct mesh_preq_queue preq_queue;
574 struct mesh_stats mshstats;
575 struct mesh_config mshcfg;
576 atomic_t estab_plinks;
578 bool accepting_plinks;
580 struct beacon_data __rcu *beacon;
584 IEEE80211_MESH_SEC_NONE = 0x0,
585 IEEE80211_MESH_SEC_AUTHED = 0x1,
586 IEEE80211_MESH_SEC_SECURED = 0x2,
589 /* Extensible Synchronization Framework */
590 const struct ieee80211_mesh_sync_ops *sync_ops;
591 s64 sync_offset_clockdrift_max;
592 spinlock_t sync_offset_lock;
594 /* mesh power save */
595 enum nl80211_mesh_power_mode nonpeer_pm;
596 int ps_peers_light_sleep;
597 int ps_peers_deep_sleep;
601 #ifdef CONFIG_MAC80211_MESH
602 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
603 do { (msh)->mshstats.name++; } while (0)
605 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
610 * enum ieee80211_sub_if_data_flags - virtual interface flags
612 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
613 * @IEEE80211_SDATA_PROMISC: interface is promisc
614 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
615 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
616 * associated stations and deliver multicast frames both
617 * back to wireless media and to the local net stack.
618 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
619 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
621 enum ieee80211_sub_if_data_flags {
622 IEEE80211_SDATA_ALLMULTI = BIT(0),
623 IEEE80211_SDATA_PROMISC = BIT(1),
624 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
625 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
626 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
627 IEEE80211_SDATA_IN_DRIVER = BIT(5),
631 * enum ieee80211_sdata_state_bits - virtual interface state bits
632 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
633 * mirrors netif_running() but is separate for interface type
634 * change handling while the interface is up
635 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
636 * mode, so queues are stopped
637 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
638 * to offchannel, reset when offchannel returns
640 enum ieee80211_sdata_state_bits {
642 SDATA_STATE_OFFCHANNEL,
643 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
647 * enum ieee80211_chanctx_mode - channel context configuration mode
649 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
650 * multiple interfaces
651 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
652 * only by a single interface. This can be used for example for
653 * non-fixed channel IBSS.
655 enum ieee80211_chanctx_mode {
656 IEEE80211_CHANCTX_SHARED,
657 IEEE80211_CHANCTX_EXCLUSIVE
660 struct ieee80211_chanctx {
661 struct list_head list;
662 struct rcu_head rcu_head;
664 enum ieee80211_chanctx_mode mode;
668 struct ieee80211_chanctx_conf conf;
671 struct ieee80211_sub_if_data {
672 struct list_head list;
674 struct wireless_dev wdev;
677 struct list_head key_list;
679 /* count for keys needing tailroom space allocation */
680 int crypto_tx_tailroom_needed_cnt;
681 int crypto_tx_tailroom_pending_dec;
682 struct delayed_work dec_tailroom_needed_wk;
684 struct net_device *dev;
685 struct ieee80211_local *local;
691 int drop_unencrypted;
695 /* Fragment table for host-based reassembly */
696 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
697 unsigned int fragment_next;
699 /* TID bitmap for NoAck policy */
702 /* bit field of ACM bits (BIT(802.1D tag)) */
705 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
706 struct ieee80211_key __rcu *default_unicast_key;
707 struct ieee80211_key __rcu *default_multicast_key;
708 struct ieee80211_key __rcu *default_mgmt_key;
711 __be16 control_port_protocol;
712 bool control_port_no_encrypt;
714 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
716 /* used to reconfigure hardware SM PS */
717 struct work_struct recalc_smps;
719 struct work_struct work;
720 struct sk_buff_head skb_queue;
723 enum ieee80211_smps_mode smps_mode;
725 int user_power_level; /* in dBm */
726 int ap_power_level; /* in dBm */
729 struct delayed_work dfs_cac_timer_work;
732 * AP this belongs to: self in AP mode and
733 * corresponding AP in VLAN mode, NULL for
734 * all others (might be needed later in IBSS)
736 struct ieee80211_if_ap *bss;
738 /* bitmap of allowed (non-MCS) rate indexes for rate control */
739 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
741 bool rc_has_mcs_mask[IEEE80211_NUM_BANDS];
742 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
745 struct ieee80211_if_ap ap;
746 struct ieee80211_if_wds wds;
747 struct ieee80211_if_vlan vlan;
748 struct ieee80211_if_managed mgd;
749 struct ieee80211_if_ibss ibss;
750 struct ieee80211_if_mesh mesh;
754 spinlock_t cleanup_stations_lock;
755 struct list_head cleanup_stations;
756 struct work_struct cleanup_stations_wk;
758 #ifdef CONFIG_MAC80211_DEBUGFS
760 struct dentry *subdir_stations;
761 struct dentry *default_unicast_key;
762 struct dentry *default_multicast_key;
763 struct dentry *default_mgmt_key;
767 /* must be last, dynamically sized area in this! */
768 struct ieee80211_vif vif;
772 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
774 return container_of(p, struct ieee80211_sub_if_data, vif);
777 static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
778 __acquires(&sdata->wdev.mtx)
780 mutex_lock(&sdata->wdev.mtx);
781 __acquire(&sdata->wdev.mtx);
784 static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
785 __releases(&sdata->wdev.mtx)
787 mutex_unlock(&sdata->wdev.mtx);
788 __release(&sdata->wdev.mtx);
792 sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
794 lockdep_assert_held(&sdata->wdev.mtx);
797 static inline enum ieee80211_band
798 ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
800 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
801 struct ieee80211_chanctx_conf *chanctx_conf;
804 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
805 if (!WARN_ON(!chanctx_conf))
806 band = chanctx_conf->def.chan->band;
812 enum sdata_queue_type {
813 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
814 IEEE80211_SDATA_QUEUE_AGG_START = 1,
815 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
819 IEEE80211_RX_MSG = 1,
820 IEEE80211_TX_STATUS_MSG = 2,
823 enum queue_stop_reason {
824 IEEE80211_QUEUE_STOP_REASON_DRIVER,
825 IEEE80211_QUEUE_STOP_REASON_PS,
826 IEEE80211_QUEUE_STOP_REASON_CSA,
827 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
828 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
829 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
830 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
831 IEEE80211_QUEUE_STOP_REASON_FLUSH,
834 #ifdef CONFIG_MAC80211_LEDS
835 struct tpt_led_trigger {
836 struct led_trigger trig;
838 const struct ieee80211_tpt_blink *blink_table;
839 unsigned int blink_table_len;
840 struct timer_list timer;
841 unsigned long prev_traffic;
842 unsigned long tx_bytes, rx_bytes;
843 unsigned int active, want;
849 * mac80211 scan flags - currently active scan mode
851 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
852 * well be on the operating channel
853 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
854 * determine if we are on the operating channel or not
855 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
856 * channel. This should not interrupt normal traffic.
857 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
858 * that the scan completed.
859 * @SCAN_ABORTED: Set for our scan work function when the driver reported
860 * a scan complete for an aborted scan.
865 SCAN_ONCHANNEL_SCANNING,
871 * enum mac80211_scan_state - scan state machine states
873 * @SCAN_DECISION: Main entry point to the scan state machine, this state
874 * determines if we should keep on scanning or switch back to the
876 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
877 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
878 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
880 * @SCAN_RESUME: Resume the scan and scan the next channel
881 * @SCAN_ABORT: Abort the scan and go back to operating channel
883 enum mac80211_scan_state {
892 struct ieee80211_local {
893 /* embed the driver visible part.
894 * don't cast (use the static inlines below), but we keep
895 * it first anyway so they become a no-op */
896 struct ieee80211_hw hw;
898 const struct ieee80211_ops *ops;
901 * private workqueue to mac80211. mac80211 makes this accessible
902 * via ieee80211_queue_work()
904 struct workqueue_struct *workqueue;
906 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
907 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
908 spinlock_t queue_stop_reason_lock;
911 int monitors, cooked_mntrs;
912 /* number of interfaces with corresponding FIF_ flags */
913 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
916 unsigned int filter_flags; /* FIF_* */
918 bool wiphy_ciphers_allocated;
922 /* protects the aggregated multicast list and filter calls */
923 spinlock_t filter_lock;
925 /* used for uploading changed mc list */
926 struct work_struct reconfig_filter;
928 /* aggregated multicast list */
929 struct netdev_hw_addr_list mc_list;
931 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
934 * suspended is true if we finished all the suspend _and_ we have
935 * not yet come up from resume. This is to be used by mac80211
936 * to ensure driver sanity during suspend and mac80211's own
937 * sanity. It can eventually be used for WoW as well.
942 * Resuming is true while suspended, but when we're reprogramming the
943 * hardware -- at that time it's allowed to use ieee80211_queue_work()
944 * again even though some other parts of the stack are still suspended
945 * and we still drop received frames to avoid waking the stack.
950 * quiescing is true during the suspend process _only_ to
951 * ease timer cancelling etc.
955 /* device is started */
958 /* device is during a HW reconfig */
961 /* wowlan is enabled -- don't reconfig on resume */
964 /* DFS/radar detection is enabled */
965 bool radar_detect_enabled;
966 struct work_struct radar_detected_work;
968 /* number of RX chains the hardware has */
971 int tx_headroom; /* required headroom for hardware/radiotap */
973 /* Tasklet and skb queue to process calls from IRQ mode. All frames
974 * added to skb_queue will be processed, but frames in
975 * skb_queue_unreliable may be dropped if the total length of these
976 * queues increases over the limit. */
977 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
978 struct tasklet_struct tasklet;
979 struct sk_buff_head skb_queue;
980 struct sk_buff_head skb_queue_unreliable;
982 spinlock_t rx_path_lock;
986 * The mutex only protects the list, hash table and
987 * counter, reads are done with RCU.
989 struct mutex sta_mtx;
991 unsigned long num_sta;
992 struct list_head sta_list;
993 struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
994 struct timer_list sta_cleanup;
997 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
998 struct tasklet_struct tx_pending_tasklet;
1000 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1002 /* number of interfaces with corresponding IFF_ flags */
1003 atomic_t iff_allmultis, iff_promiscs;
1005 struct rate_control_ref *rate_ctrl;
1007 struct crypto_cipher *wep_tx_tfm;
1008 struct crypto_cipher *wep_rx_tfm;
1012 struct list_head interfaces;
1013 struct mutex iflist_mtx;
1016 * Key mutex, protects sdata's key_list and sta_info's
1017 * key pointers (write access, they're RCU.)
1019 struct mutex key_mtx;
1021 /* mutex for scan and work locking */
1024 /* Scanning and BSS list */
1025 unsigned long scanning;
1026 struct cfg80211_ssid scan_ssid;
1027 struct cfg80211_scan_request *int_scan_req;
1028 struct cfg80211_scan_request *scan_req, *hw_scan_req;
1029 struct ieee80211_channel *scan_channel;
1030 enum ieee80211_band hw_scan_band;
1031 int scan_channel_idx;
1033 int hw_scan_ies_bufsize;
1035 struct work_struct sched_scan_stopped_work;
1036 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1038 unsigned long leave_oper_channel_time;
1039 enum mac80211_scan_state next_scan_state;
1040 struct delayed_work scan_work;
1041 struct ieee80211_sub_if_data __rcu *scan_sdata;
1042 struct cfg80211_chan_def csa_chandef;
1043 /* For backward compatibility only -- do not use */
1044 struct cfg80211_chan_def _oper_chandef;
1046 /* Temporary remain-on-channel for off-channel operations */
1047 struct ieee80211_channel *tmp_channel;
1049 /* channel contexts */
1050 struct list_head chanctx_list;
1051 struct mutex chanctx_mtx;
1054 /* dot11CountersTable */
1055 u32 dot11TransmittedFragmentCount;
1056 u32 dot11MulticastTransmittedFrameCount;
1057 u32 dot11FailedCount;
1058 u32 dot11RetryCount;
1059 u32 dot11MultipleRetryCount;
1060 u32 dot11FrameDuplicateCount;
1061 u32 dot11ReceivedFragmentCount;
1062 u32 dot11MulticastReceivedFrameCount;
1063 u32 dot11TransmittedFrameCount;
1065 #ifdef CONFIG_MAC80211_LEDS
1066 int tx_led_counter, rx_led_counter;
1067 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
1068 struct tpt_led_trigger *tpt_led_trigger;
1069 char tx_led_name[32], rx_led_name[32],
1070 assoc_led_name[32], radio_led_name[32];
1073 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1074 /* TX/RX handler statistics */
1075 unsigned int tx_handlers_drop;
1076 unsigned int tx_handlers_queued;
1077 unsigned int tx_handlers_drop_unencrypted;
1078 unsigned int tx_handlers_drop_fragment;
1079 unsigned int tx_handlers_drop_wep;
1080 unsigned int tx_handlers_drop_not_assoc;
1081 unsigned int tx_handlers_drop_unauth_port;
1082 unsigned int rx_handlers_drop;
1083 unsigned int rx_handlers_queued;
1084 unsigned int rx_handlers_drop_nullfunc;
1085 unsigned int rx_handlers_drop_defrag;
1086 unsigned int rx_handlers_drop_short;
1087 unsigned int tx_expand_skb_head;
1088 unsigned int tx_expand_skb_head_cloned;
1089 unsigned int rx_expand_skb_head;
1090 unsigned int rx_expand_skb_head2;
1091 unsigned int rx_handlers_fragments;
1092 unsigned int tx_status_drop;
1093 #define I802_DEBUG_INC(c) (c)++
1094 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1095 #define I802_DEBUG_INC(c) do { } while (0)
1096 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1099 int total_ps_buffered; /* total number of all buffered unicast and
1100 * multicast packets for power saving stations
1104 bool offchannel_ps_enabled;
1106 * PS can only be enabled when we have exactly one managed
1107 * interface (and monitors) in PS, this then points there.
1109 struct ieee80211_sub_if_data *ps_sdata;
1110 struct work_struct dynamic_ps_enable_work;
1111 struct work_struct dynamic_ps_disable_work;
1112 struct timer_list dynamic_ps_timer;
1113 struct notifier_block network_latency_notifier;
1114 struct notifier_block ifa_notifier;
1115 struct notifier_block ifa6_notifier;
1118 * The dynamic ps timeout configured from user space via WEXT -
1119 * this will override whatever chosen by mac80211 internally.
1121 int dynamic_ps_forced_timeout;
1123 int user_power_level; /* in dBm, for all interfaces */
1125 enum ieee80211_smps_mode smps_mode;
1127 struct work_struct restart_work;
1129 #ifdef CONFIG_MAC80211_DEBUGFS
1130 struct local_debugfsdentries {
1131 struct dentry *rcdir;
1132 struct dentry *keys;
1137 * Remain-on-channel support
1139 struct list_head roc_list;
1140 struct work_struct hw_roc_start, hw_roc_done;
1141 unsigned long hw_roc_start_time;
1142 u64 roc_cookie_counter;
1144 struct idr ack_status_frames;
1145 spinlock_t ack_status_lock;
1147 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1149 /* virtual monitor interface */
1150 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1151 struct cfg80211_chan_def monitor_chandef;
1154 static inline struct ieee80211_sub_if_data *
1155 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1157 return netdev_priv(dev);
1160 static inline struct ieee80211_sub_if_data *
1161 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1163 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1166 /* this struct represents 802.11n's RA/TID combination */
1167 struct ieee80211_ra_tid {
1172 /* Parsed Information Elements */
1173 struct ieee802_11_elems {
1177 /* pointers to IEs */
1179 const u8 *supp_rates;
1180 const u8 *ds_params;
1181 const struct ieee80211_tim_ie *tim;
1182 const u8 *challenge;
1185 const u8 *ext_supp_rates;
1187 const u8 *wmm_param;
1188 const struct ieee80211_ht_cap *ht_cap_elem;
1189 const struct ieee80211_ht_operation *ht_operation;
1190 const struct ieee80211_vht_cap *vht_cap_elem;
1191 const struct ieee80211_vht_operation *vht_operation;
1192 const struct ieee80211_meshconf_ie *mesh_config;
1195 const __le16 *awake_window;
1199 const struct ieee80211_rann_ie *rann;
1200 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1201 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1202 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1203 const u8 *country_elem;
1204 const u8 *pwr_constr_elem;
1205 const struct ieee80211_timeout_interval_ie *timeout_int;
1206 const u8 *opmode_notif;
1207 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1209 /* length of them, respectively */
1215 u8 ext_supp_rates_len;
1223 u8 country_elem_len;
1225 /* whether a parse error occurred while retrieving these elements */
1229 static inline struct ieee80211_local *hw_to_local(
1230 struct ieee80211_hw *hw)
1232 return container_of(hw, struct ieee80211_local, hw);
1236 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1238 return ether_addr_equal(raddr, addr) ||
1239 is_broadcast_ether_addr(raddr);
1243 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1245 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1246 status->flag & RX_FLAG_MACTIME_END);
1247 return status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END);
1250 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1251 struct ieee80211_rx_status *status,
1252 unsigned int mpdu_len,
1253 unsigned int mpdu_offset);
1254 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1255 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1256 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1258 void ieee80211_configure_filter(struct ieee80211_local *local);
1259 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1262 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1263 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1264 struct cfg80211_auth_request *req);
1265 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1266 struct cfg80211_assoc_request *req);
1267 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1268 struct cfg80211_deauth_request *req);
1269 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1270 struct cfg80211_disassoc_request *req);
1271 void ieee80211_send_pspoll(struct ieee80211_local *local,
1272 struct ieee80211_sub_if_data *sdata);
1273 void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
1274 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1275 int ieee80211_max_network_latency(struct notifier_block *nb,
1276 unsigned long data, void *dummy);
1277 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1278 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1279 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1280 struct sk_buff *skb);
1281 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1282 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1283 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1284 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1285 __le16 fc, bool acked);
1286 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1289 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1290 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1291 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1292 const u8 *bssid, const u8 *addr, u32 supp_rates);
1293 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1294 struct cfg80211_ibss_params *params);
1295 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1296 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1297 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1298 struct sk_buff *skb);
1301 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1302 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1303 struct sk_buff *skb);
1305 /* scan/BSS handling */
1306 void ieee80211_scan_work(struct work_struct *work);
1307 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1308 const u8 *ssid, u8 ssid_len,
1309 struct ieee80211_channel *chan);
1310 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1311 struct cfg80211_scan_request *req);
1312 void ieee80211_scan_cancel(struct ieee80211_local *local);
1313 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1314 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1316 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1317 struct ieee80211_bss *
1318 ieee80211_bss_info_update(struct ieee80211_local *local,
1319 struct ieee80211_rx_status *rx_status,
1320 struct ieee80211_mgmt *mgmt,
1322 struct ieee802_11_elems *elems,
1323 struct ieee80211_channel *channel);
1324 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1325 struct ieee80211_bss *bss);
1327 /* scheduled scan handling */
1328 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1329 struct cfg80211_sched_scan_request *req);
1330 int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
1331 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1333 /* off-channel helpers */
1334 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1335 void ieee80211_offchannel_return(struct ieee80211_local *local);
1336 void ieee80211_roc_setup(struct ieee80211_local *local);
1337 void ieee80211_start_next_roc(struct ieee80211_local *local);
1338 void ieee80211_roc_purge(struct ieee80211_local *local,
1339 struct ieee80211_sub_if_data *sdata);
1340 void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc, bool free);
1341 void ieee80211_sw_roc_work(struct work_struct *work);
1342 void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
1344 /* interface handling */
1345 int ieee80211_iface_init(void);
1346 void ieee80211_iface_exit(void);
1347 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1348 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1349 struct vif_params *params);
1350 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1351 enum nl80211_iftype type);
1352 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1353 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1354 u32 ieee80211_idle_off(struct ieee80211_local *local);
1355 void ieee80211_recalc_idle(struct ieee80211_local *local);
1356 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1358 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1359 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
1360 int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1361 void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
1363 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1364 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1366 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1368 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1372 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1373 void ieee80211_tx_pending(unsigned long data);
1374 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1375 struct net_device *dev);
1376 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1377 struct net_device *dev);
1378 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1379 struct sk_buff_head *skbs);
1382 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1383 struct ieee80211_sta_ht_cap *ht_cap);
1384 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1385 struct ieee80211_supported_band *sband,
1386 const struct ieee80211_ht_cap *ht_cap_ie,
1387 struct sta_info *sta);
1388 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1389 const u8 *da, u16 tid,
1390 u16 initiator, u16 reason_code);
1391 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1392 enum ieee80211_smps_mode smps, const u8 *da,
1394 void ieee80211_request_smps_work(struct work_struct *work);
1396 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1397 u16 initiator, u16 reason, bool stop);
1398 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1399 u16 initiator, u16 reason, bool stop);
1400 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1401 enum ieee80211_agg_stop_reason reason);
1402 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1403 struct sta_info *sta,
1404 struct ieee80211_mgmt *mgmt, size_t len);
1405 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1406 struct sta_info *sta,
1407 struct ieee80211_mgmt *mgmt,
1409 void ieee80211_process_addba_request(struct ieee80211_local *local,
1410 struct sta_info *sta,
1411 struct ieee80211_mgmt *mgmt,
1414 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1415 enum ieee80211_agg_stop_reason reason);
1416 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1417 enum ieee80211_agg_stop_reason reason);
1418 void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1419 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
1420 void ieee80211_ba_session_work(struct work_struct *work);
1421 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1422 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1424 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1428 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1429 struct ieee80211_supported_band *sband,
1430 const struct ieee80211_vht_cap *vht_cap_ie,
1431 struct sta_info *sta);
1432 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
1433 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
1434 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1435 struct sta_info *sta, u8 opmode,
1436 enum ieee80211_band band, bool nss_only);
1437 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
1438 struct ieee80211_sta_vht_cap *vht_cap);
1440 /* Spectrum management */
1441 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1442 struct ieee80211_mgmt *mgmt,
1445 /* Suspend/resume and hw reconfiguration */
1446 int ieee80211_reconfig(struct ieee80211_local *local);
1447 void ieee80211_stop_device(struct ieee80211_local *local);
1449 int __ieee80211_suspend(struct ieee80211_hw *hw,
1450 struct cfg80211_wowlan *wowlan);
1452 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1454 struct ieee80211_local *local = hw_to_local(hw);
1456 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
1457 "%s: resume with hardware scan still in progress\n",
1458 wiphy_name(hw->wiphy));
1460 return ieee80211_reconfig(hw_to_local(hw));
1463 /* utility functions/constants */
1464 extern void *mac80211_wiphy_privid; /* for wiphy privid */
1465 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
1466 enum nl80211_iftype type);
1467 int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
1468 int rate, int erp, int short_preamble);
1469 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
1470 struct ieee80211_hdr *hdr, const u8 *tsc,
1472 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1474 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
1475 enum ieee80211_band band);
1477 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1478 struct sk_buff *skb, int tid,
1479 enum ieee80211_band band);
1482 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1483 struct sk_buff *skb, int tid,
1484 enum ieee80211_band band)
1487 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1491 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1492 struct sk_buff *skb, int tid)
1494 struct ieee80211_chanctx_conf *chanctx_conf;
1497 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1498 if (WARN_ON(!chanctx_conf)) {
1504 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
1505 chanctx_conf->def.chan->band);
1509 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
1510 struct sk_buff *skb)
1512 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1513 ieee80211_tx_skb_tid(sdata, skb, 7);
1516 u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
1517 struct ieee802_11_elems *elems,
1518 u64 filter, u32 crc);
1519 static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
1521 struct ieee802_11_elems *elems)
1523 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
1526 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1527 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1528 void ieee80211_dynamic_ps_timer(unsigned long data);
1529 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1530 struct ieee80211_sub_if_data *sdata,
1532 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1533 struct ieee80211_hdr *hdr);
1534 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
1535 struct ieee80211_hdr *hdr, bool ack);
1537 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1538 unsigned long queues,
1539 enum queue_stop_reason reason);
1540 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1541 unsigned long queues,
1542 enum queue_stop_reason reason);
1543 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1544 enum queue_stop_reason reason);
1545 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1546 enum queue_stop_reason reason);
1547 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
1548 void ieee80211_add_pending_skb(struct ieee80211_local *local,
1549 struct sk_buff *skb);
1550 void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
1551 struct sk_buff_head *skbs,
1552 void (*fn)(void *data), void *data);
1553 static inline void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1554 struct sk_buff_head *skbs)
1556 ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL);
1558 void ieee80211_flush_queues(struct ieee80211_local *local,
1559 struct ieee80211_sub_if_data *sdata);
1561 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1562 u16 transaction, u16 auth_alg, u16 status,
1563 const u8 *extra, size_t extra_len, const u8 *bssid,
1564 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
1566 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
1567 const u8 *bssid, u16 stype, u16 reason,
1568 bool send_frame, u8 *frame_buf);
1569 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1570 size_t buffer_len, const u8 *ie, size_t ie_len,
1571 enum ieee80211_band band, u32 rate_mask,
1573 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
1574 u8 *dst, u32 ratemask,
1575 struct ieee80211_channel *chan,
1576 const u8 *ssid, size_t ssid_len,
1577 const u8 *ie, size_t ie_len,
1579 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
1580 const u8 *ssid, size_t ssid_len,
1581 const u8 *ie, size_t ie_len,
1582 u32 ratemask, bool directed, u32 tx_flags,
1583 struct ieee80211_channel *channel, bool scan);
1585 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1586 const size_t supp_rates_len,
1587 const u8 *supp_rates);
1588 u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1589 struct ieee802_11_elems *elems,
1590 enum ieee80211_band band, u32 *basic_rates);
1591 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1592 enum ieee80211_smps_mode smps_mode);
1593 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
1595 size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
1596 const u8 *ids, int n_ids, size_t offset);
1597 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
1598 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1600 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1601 const struct cfg80211_chan_def *chandef,
1603 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1605 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
1606 struct sk_buff *skb, bool need_basic,
1607 enum ieee80211_band band);
1608 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
1609 struct sk_buff *skb, bool need_basic,
1610 enum ieee80211_band band);
1612 /* channel management */
1613 void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
1614 const struct ieee80211_ht_operation *ht_oper,
1615 struct cfg80211_chan_def *chandef);
1618 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
1619 const struct cfg80211_chan_def *chandef,
1620 enum ieee80211_chanctx_mode mode);
1622 ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
1623 const struct cfg80211_chan_def *chandef,
1625 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
1626 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
1627 void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
1630 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
1631 struct ieee80211_chanctx *chanctx);
1632 void ieee80211_recalc_radar_chanctx(struct ieee80211_local *local,
1633 struct ieee80211_chanctx *chanctx);
1635 void ieee80211_dfs_cac_timer(unsigned long data);
1636 void ieee80211_dfs_cac_timer_work(struct work_struct *work);
1637 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
1638 void ieee80211_dfs_radar_detected_work(struct work_struct *work);
1640 #ifdef CONFIG_MAC80211_NOINLINE
1641 #define debug_noinline noinline
1643 #define debug_noinline
1646 #endif /* IEEE80211_I_H */