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;
396 struct cfg80211_bss *associated;
397 struct ieee80211_mgd_auth_data *auth_data;
398 struct ieee80211_mgd_assoc_data *assoc_data;
404 unsigned long timers_running; /* used for quiesce/restart */
405 bool powersave; /* powersave requested for this iface */
406 bool broken_ap; /* AP is broken -- turn off powersave */
408 enum ieee80211_smps_mode req_smps, /* requested smps mode */
409 driver_smps_mode; /* smps mode request */
411 struct work_struct request_smps_work;
415 bool beacon_crc_valid;
419 IEEE80211_MFP_DISABLED,
420 IEEE80211_MFP_OPTIONAL,
421 IEEE80211_MFP_REQUIRED
422 } mfp; /* management frame protection */
425 * Bitmask of enabled u-apsd queues,
426 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
429 unsigned int uapsd_queues;
432 * Maximum number of buffered frames AP can deliver during a
433 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
434 * Needs a new association to take effect.
436 unsigned int uapsd_max_sp_len;
438 int wmm_last_param_set;
444 /* Signal strength from the last Beacon frame in the current BSS. */
445 int last_beacon_signal;
448 * Weighted average of the signal strength from Beacon frames in the
449 * current BSS. This is in units of 1/16 of the signal unit to maintain
450 * accuracy and to speed up calculations, i.e., the value need to be
451 * divided by 16 to get the actual value.
453 int ave_beacon_signal;
456 * Number of Beacon frames used in ave_beacon_signal. This can be used
457 * to avoid generating less reliable cqm events that would be based
458 * only on couple of received frames.
460 unsigned int count_beacon_signal;
463 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
464 * that triggered a cqm event. 0 indicates that no event has been
465 * generated for the current association.
467 int last_cqm_event_signal;
470 * State variables for keeping track of RSSI of the AP currently
471 * connected to and informing driver when RSSI has gone
472 * below/above a certain threshold.
474 int rssi_min_thold, rssi_max_thold;
475 int last_ave_beacon_signal;
477 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
478 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
481 struct ieee80211_if_ibss {
482 struct timer_list timer;
486 unsigned long last_scan_completed;
497 unsigned int auth_frame_registrations;
499 u8 bssid[ETH_ALEN] __aligned(2);
500 u8 ssid[IEEE80211_MAX_SSID_LEN];
503 struct ieee80211_channel *channel;
504 enum nl80211_channel_type channel_type;
506 unsigned long ibss_join_req;
507 /* probe response/beacon for IBSS */
508 struct sk_buff __rcu *presp;
511 spinlock_t incomplete_lock;
512 struct list_head incomplete_stations;
515 IEEE80211_IBSS_MLME_SEARCH,
516 IEEE80211_IBSS_MLME_JOINED,
521 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
523 * these declarations define the interface, which enables
524 * vendor-specific mesh synchronization
527 struct ieee802_11_elems;
528 struct ieee80211_mesh_sync_ops {
529 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
531 struct ieee80211_mgmt *mgmt,
532 struct ieee802_11_elems *elems,
533 struct ieee80211_rx_status *rx_status);
534 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata);
535 /* add other framework functions here */
538 struct ieee80211_if_mesh {
539 struct timer_list housekeeping_timer;
540 struct timer_list mesh_path_timer;
541 struct timer_list mesh_path_root_timer;
543 unsigned long timers_running;
545 unsigned long wrkq_flags;
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;
583 IEEE80211_MESH_SEC_NONE = 0x0,
584 IEEE80211_MESH_SEC_AUTHED = 0x1,
585 IEEE80211_MESH_SEC_SECURED = 0x2,
587 /* Extensible Synchronization Framework */
588 const struct ieee80211_mesh_sync_ops *sync_ops;
589 s64 sync_offset_clockdrift_max;
590 spinlock_t sync_offset_lock;
594 #ifdef CONFIG_MAC80211_MESH
595 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
596 do { (msh)->mshstats.name++; } while (0)
598 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
603 * enum ieee80211_sub_if_data_flags - virtual interface flags
605 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
606 * @IEEE80211_SDATA_PROMISC: interface is promisc
607 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
608 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
609 * associated stations and deliver multicast frames both
610 * back to wireless media and to the local net stack.
611 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
612 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
614 enum ieee80211_sub_if_data_flags {
615 IEEE80211_SDATA_ALLMULTI = BIT(0),
616 IEEE80211_SDATA_PROMISC = BIT(1),
617 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
618 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
619 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
620 IEEE80211_SDATA_IN_DRIVER = BIT(5),
624 * enum ieee80211_sdata_state_bits - virtual interface state bits
625 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
626 * mirrors netif_running() but is separate for interface type
627 * change handling while the interface is up
628 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
629 * mode, so queues are stopped
630 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
631 * to offchannel, reset when offchannel returns
633 enum ieee80211_sdata_state_bits {
635 SDATA_STATE_OFFCHANNEL,
636 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
640 * enum ieee80211_chanctx_mode - channel context configuration mode
642 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
643 * multiple interfaces
644 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
645 * only by a single interface. This can be used for example for
646 * non-fixed channel IBSS.
648 enum ieee80211_chanctx_mode {
649 IEEE80211_CHANCTX_SHARED,
650 IEEE80211_CHANCTX_EXCLUSIVE
653 struct ieee80211_chanctx {
654 struct list_head list;
655 struct rcu_head rcu_head;
657 enum ieee80211_chanctx_mode mode;
661 struct ieee80211_chanctx_conf conf;
664 struct ieee80211_sub_if_data {
665 struct list_head list;
667 struct wireless_dev wdev;
670 struct list_head key_list;
672 /* count for keys needing tailroom space allocation */
673 int crypto_tx_tailroom_needed_cnt;
675 struct net_device *dev;
676 struct ieee80211_local *local;
682 int drop_unencrypted;
686 /* to detect idle changes */
689 /* Fragment table for host-based reassembly */
690 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
691 unsigned int fragment_next;
693 /* TID bitmap for NoAck policy */
696 /* bit field of ACM bits (BIT(802.1D tag)) */
699 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
700 struct ieee80211_key __rcu *default_unicast_key;
701 struct ieee80211_key __rcu *default_multicast_key;
702 struct ieee80211_key __rcu *default_mgmt_key;
705 __be16 control_port_protocol;
706 bool control_port_no_encrypt;
708 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
710 /* used to reconfigure hardware SM PS */
711 struct work_struct recalc_smps;
713 struct work_struct work;
714 struct sk_buff_head skb_queue;
717 enum ieee80211_smps_mode smps_mode;
719 int user_power_level; /* in dBm */
720 int ap_power_level; /* in dBm */
723 * AP this belongs to: self in AP mode and
724 * corresponding AP in VLAN mode, NULL for
725 * all others (might be needed later in IBSS)
727 struct ieee80211_if_ap *bss;
729 /* bitmap of allowed (non-MCS) rate indexes for rate control */
730 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
731 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
734 struct ieee80211_if_ap ap;
735 struct ieee80211_if_wds wds;
736 struct ieee80211_if_vlan vlan;
737 struct ieee80211_if_managed mgd;
738 struct ieee80211_if_ibss ibss;
739 struct ieee80211_if_mesh mesh;
743 spinlock_t cleanup_stations_lock;
744 struct list_head cleanup_stations;
745 struct work_struct cleanup_stations_wk;
747 #ifdef CONFIG_MAC80211_DEBUGFS
750 struct dentry *subdir_stations;
751 struct dentry *default_unicast_key;
752 struct dentry *default_multicast_key;
753 struct dentry *default_mgmt_key;
758 struct ieee80211_bss_conf suspend_bss_conf;
761 /* must be last, dynamically sized area in this! */
762 struct ieee80211_vif vif;
766 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
768 return container_of(p, struct ieee80211_sub_if_data, vif);
771 static inline enum ieee80211_band
772 ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
774 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
775 struct ieee80211_chanctx_conf *chanctx_conf;
778 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
779 if (!WARN_ON(!chanctx_conf))
780 band = chanctx_conf->def.chan->band;
786 enum sdata_queue_type {
787 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
788 IEEE80211_SDATA_QUEUE_AGG_START = 1,
789 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
793 IEEE80211_RX_MSG = 1,
794 IEEE80211_TX_STATUS_MSG = 2,
795 IEEE80211_EOSP_MSG = 3,
798 struct skb_eosp_msg_data {
799 u8 sta[ETH_ALEN], iface[ETH_ALEN];
802 enum queue_stop_reason {
803 IEEE80211_QUEUE_STOP_REASON_DRIVER,
804 IEEE80211_QUEUE_STOP_REASON_PS,
805 IEEE80211_QUEUE_STOP_REASON_CSA,
806 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
807 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
808 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
811 #ifdef CONFIG_MAC80211_LEDS
812 struct tpt_led_trigger {
813 struct led_trigger trig;
815 const struct ieee80211_tpt_blink *blink_table;
816 unsigned int blink_table_len;
817 struct timer_list timer;
818 unsigned long prev_traffic;
819 unsigned long tx_bytes, rx_bytes;
820 unsigned int active, want;
826 * mac80211 scan flags - currently active scan mode
828 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
829 * well be on the operating channel
830 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
831 * determine if we are on the operating channel or not
832 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
833 * channel. This should not interrupt normal traffic.
834 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
835 * that the scan completed.
836 * @SCAN_ABORTED: Set for our scan work function when the driver reported
837 * a scan complete for an aborted scan.
842 SCAN_ONCHANNEL_SCANNING,
848 * enum mac80211_scan_state - scan state machine states
850 * @SCAN_DECISION: Main entry point to the scan state machine, this state
851 * determines if we should keep on scanning or switch back to the
853 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
854 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
855 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
857 * @SCAN_RESUME: Resume the scan and scan the next channel
858 * @SCAN_ABORT: Abort the scan and go back to operating channel
860 enum mac80211_scan_state {
869 struct ieee80211_local {
870 /* embed the driver visible part.
871 * don't cast (use the static inlines below), but we keep
872 * it first anyway so they become a no-op */
873 struct ieee80211_hw hw;
875 const struct ieee80211_ops *ops;
878 * private workqueue to mac80211. mac80211 makes this accessible
879 * via ieee80211_queue_work()
881 struct workqueue_struct *workqueue;
883 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
884 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
885 spinlock_t queue_stop_reason_lock;
888 int monitors, cooked_mntrs;
889 /* number of interfaces with corresponding FIF_ flags */
890 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
893 unsigned int filter_flags; /* FIF_* */
895 bool wiphy_ciphers_allocated;
899 /* protects the aggregated multicast list and filter calls */
900 spinlock_t filter_lock;
902 /* used for uploading changed mc list */
903 struct work_struct reconfig_filter;
905 /* aggregated multicast list */
906 struct netdev_hw_addr_list mc_list;
908 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
911 * suspended is true if we finished all the suspend _and_ we have
912 * not yet come up from resume. This is to be used by mac80211
913 * to ensure driver sanity during suspend and mac80211's own
914 * sanity. It can eventually be used for WoW as well.
919 * Resuming is true while suspended, but when we're reprogramming the
920 * hardware -- at that time it's allowed to use ieee80211_queue_work()
921 * again even though some other parts of the stack are still suspended
922 * and we still drop received frames to avoid waking the stack.
927 * quiescing is true during the suspend process _only_ to
928 * ease timer cancelling etc.
932 /* device is started */
935 /* device is during a HW reconfig */
938 /* wowlan is enabled -- don't reconfig on resume */
941 /* number of RX chains the hardware has */
944 int tx_headroom; /* required headroom for hardware/radiotap */
946 /* Tasklet and skb queue to process calls from IRQ mode. All frames
947 * added to skb_queue will be processed, but frames in
948 * skb_queue_unreliable may be dropped if the total length of these
949 * queues increases over the limit. */
950 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
951 struct tasklet_struct tasklet;
952 struct sk_buff_head skb_queue;
953 struct sk_buff_head skb_queue_unreliable;
956 * Internal FIFO queue which is shared between multiple rx path
957 * stages. Its main task is to provide a serialization mechanism,
958 * so all rx handlers can enjoy having exclusive access to their
959 * private data structures.
961 struct sk_buff_head rx_skb_queue;
962 bool running_rx_handler; /* protected by rx_skb_queue.lock */
966 * The mutex only protects the list, hash table and
967 * counter, reads are done with RCU.
969 struct mutex sta_mtx;
971 unsigned long num_sta;
972 struct list_head sta_list;
973 struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
974 struct timer_list sta_cleanup;
977 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
978 struct tasklet_struct tx_pending_tasklet;
980 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
982 /* number of interfaces with corresponding IFF_ flags */
983 atomic_t iff_allmultis, iff_promiscs;
985 struct rate_control_ref *rate_ctrl;
987 struct crypto_cipher *wep_tx_tfm;
988 struct crypto_cipher *wep_rx_tfm;
992 struct list_head interfaces;
993 struct mutex iflist_mtx;
996 * Key mutex, protects sdata's key_list and sta_info's
997 * key pointers (write access, they're RCU.)
999 struct mutex key_mtx;
1001 /* mutex for scan and work locking */
1004 /* Scanning and BSS list */
1005 unsigned long scanning;
1006 struct cfg80211_ssid scan_ssid;
1007 struct cfg80211_scan_request *int_scan_req;
1008 struct cfg80211_scan_request *scan_req, *hw_scan_req;
1009 struct ieee80211_channel *scan_channel;
1010 enum ieee80211_band hw_scan_band;
1011 int scan_channel_idx;
1013 int hw_scan_ies_bufsize;
1015 struct work_struct sched_scan_stopped_work;
1016 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1018 unsigned long leave_oper_channel_time;
1019 enum mac80211_scan_state next_scan_state;
1020 struct delayed_work scan_work;
1021 struct ieee80211_sub_if_data __rcu *scan_sdata;
1022 struct ieee80211_channel *csa_channel;
1023 /* For backward compatibility only -- do not use */
1024 struct ieee80211_channel *_oper_channel;
1025 enum nl80211_channel_type _oper_channel_type;
1027 /* Temporary remain-on-channel for off-channel operations */
1028 struct ieee80211_channel *tmp_channel;
1030 /* channel contexts */
1031 struct list_head chanctx_list;
1032 struct mutex chanctx_mtx;
1035 /* dot11CountersTable */
1036 u32 dot11TransmittedFragmentCount;
1037 u32 dot11MulticastTransmittedFrameCount;
1038 u32 dot11FailedCount;
1039 u32 dot11RetryCount;
1040 u32 dot11MultipleRetryCount;
1041 u32 dot11FrameDuplicateCount;
1042 u32 dot11ReceivedFragmentCount;
1043 u32 dot11MulticastReceivedFrameCount;
1044 u32 dot11TransmittedFrameCount;
1046 #ifdef CONFIG_MAC80211_LEDS
1047 int tx_led_counter, rx_led_counter;
1048 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
1049 struct tpt_led_trigger *tpt_led_trigger;
1050 char tx_led_name[32], rx_led_name[32],
1051 assoc_led_name[32], radio_led_name[32];
1054 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1055 /* TX/RX handler statistics */
1056 unsigned int tx_handlers_drop;
1057 unsigned int tx_handlers_queued;
1058 unsigned int tx_handlers_drop_unencrypted;
1059 unsigned int tx_handlers_drop_fragment;
1060 unsigned int tx_handlers_drop_wep;
1061 unsigned int tx_handlers_drop_not_assoc;
1062 unsigned int tx_handlers_drop_unauth_port;
1063 unsigned int rx_handlers_drop;
1064 unsigned int rx_handlers_queued;
1065 unsigned int rx_handlers_drop_nullfunc;
1066 unsigned int rx_handlers_drop_defrag;
1067 unsigned int rx_handlers_drop_short;
1068 unsigned int tx_expand_skb_head;
1069 unsigned int tx_expand_skb_head_cloned;
1070 unsigned int rx_expand_skb_head;
1071 unsigned int rx_expand_skb_head2;
1072 unsigned int rx_handlers_fragments;
1073 unsigned int tx_status_drop;
1074 #define I802_DEBUG_INC(c) (c)++
1075 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1076 #define I802_DEBUG_INC(c) do { } while (0)
1077 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1080 int total_ps_buffered; /* total number of all buffered unicast and
1081 * multicast packets for power saving stations
1085 bool offchannel_ps_enabled;
1087 * PS can only be enabled when we have exactly one managed
1088 * interface (and monitors) in PS, this then points there.
1090 struct ieee80211_sub_if_data *ps_sdata;
1091 struct work_struct dynamic_ps_enable_work;
1092 struct work_struct dynamic_ps_disable_work;
1093 struct timer_list dynamic_ps_timer;
1094 struct notifier_block network_latency_notifier;
1095 struct notifier_block ifa_notifier;
1096 struct notifier_block ifa6_notifier;
1099 * The dynamic ps timeout configured from user space via WEXT -
1100 * this will override whatever chosen by mac80211 internally.
1102 int dynamic_ps_forced_timeout;
1103 int dynamic_ps_user_timeout;
1104 bool disable_dynamic_ps;
1106 int user_power_level; /* in dBm, for all interfaces */
1108 enum ieee80211_smps_mode smps_mode;
1110 struct work_struct restart_work;
1112 #ifdef CONFIG_MAC80211_DEBUGFS
1113 struct local_debugfsdentries {
1114 struct dentry *rcdir;
1115 struct dentry *keys;
1120 * Remain-on-channel support
1122 struct list_head roc_list;
1123 struct work_struct hw_roc_start, hw_roc_done;
1124 unsigned long hw_roc_start_time;
1125 u64 roc_cookie_counter;
1127 struct idr ack_status_frames;
1128 spinlock_t ack_status_lock;
1130 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1132 /* dummy netdev for use w/ NAPI */
1133 struct net_device napi_dev;
1135 struct napi_struct napi;
1137 /* virtual monitor interface */
1138 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1139 struct cfg80211_chan_def monitor_chandef;
1142 static inline struct ieee80211_sub_if_data *
1143 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1145 return netdev_priv(dev);
1148 static inline struct ieee80211_sub_if_data *
1149 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1151 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1154 /* this struct represents 802.11n's RA/TID combination */
1155 struct ieee80211_ra_tid {
1160 /* Parsed Information Elements */
1161 struct ieee802_11_elems {
1165 /* pointers to IEs */
1171 struct ieee80211_tim_ie *tim;
1180 struct ieee80211_ht_cap *ht_cap_elem;
1181 struct ieee80211_ht_operation *ht_operation;
1182 struct ieee80211_vht_cap *vht_cap_elem;
1183 struct ieee80211_vht_operation *vht_operation;
1184 struct ieee80211_meshconf_ie *mesh_config;
1190 struct ieee80211_rann_ie *rann;
1191 struct ieee80211_channel_sw_ie *ch_switch_ie;
1193 u8 *pwr_constr_elem;
1194 u8 *quiet_elem; /* first quite element */
1197 /* length of them, respectively */
1209 u8 ext_supp_rates_len;
1217 u8 country_elem_len;
1219 u8 num_of_quiet_elem; /* can be more the one */
1222 /* whether a parse error occurred while retrieving these elements */
1226 static inline struct ieee80211_local *hw_to_local(
1227 struct ieee80211_hw *hw)
1229 return container_of(hw, struct ieee80211_local, hw);
1233 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1235 return ether_addr_equal(raddr, addr) ||
1236 is_broadcast_ether_addr(raddr);
1240 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1242 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1243 status->flag & RX_FLAG_MACTIME_END);
1244 return status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END);
1247 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1248 struct ieee80211_rx_status *status,
1249 unsigned int mpdu_len,
1250 unsigned int mpdu_offset);
1251 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1252 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1253 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1255 void ieee80211_configure_filter(struct ieee80211_local *local);
1256 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1259 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1260 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1261 struct cfg80211_auth_request *req);
1262 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1263 struct cfg80211_assoc_request *req);
1264 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1265 struct cfg80211_deauth_request *req);
1266 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1267 struct cfg80211_disassoc_request *req);
1268 void ieee80211_send_pspoll(struct ieee80211_local *local,
1269 struct ieee80211_sub_if_data *sdata);
1270 void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
1271 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1272 int ieee80211_max_network_latency(struct notifier_block *nb,
1273 unsigned long data, void *dummy);
1274 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1275 void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
1276 struct ieee80211_channel_sw_ie *sw_elem,
1277 struct ieee80211_bss *bss,
1279 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
1280 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1281 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1282 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1283 struct sk_buff *skb);
1284 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1285 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1286 void ieee80211_mgd_stop(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_quiesce(struct ieee80211_sub_if_data *sdata);
1297 void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
1298 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1299 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1300 struct sk_buff *skb);
1303 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1304 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1305 struct sk_buff *skb);
1307 /* scan/BSS handling */
1308 void ieee80211_scan_work(struct work_struct *work);
1309 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1310 const u8 *ssid, u8 ssid_len,
1311 struct ieee80211_channel *chan);
1312 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1313 struct cfg80211_scan_request *req);
1314 void ieee80211_scan_cancel(struct ieee80211_local *local);
1315 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1316 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1318 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1319 struct ieee80211_bss *
1320 ieee80211_bss_info_update(struct ieee80211_local *local,
1321 struct ieee80211_rx_status *rx_status,
1322 struct ieee80211_mgmt *mgmt,
1324 struct ieee802_11_elems *elems,
1325 struct ieee80211_channel *channel);
1326 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1327 struct ieee80211_bss *bss);
1329 /* scheduled scan handling */
1330 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1331 struct cfg80211_sched_scan_request *req);
1332 int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
1333 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1335 /* off-channel helpers */
1336 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1337 void ieee80211_offchannel_return(struct ieee80211_local *local);
1338 void ieee80211_roc_setup(struct ieee80211_local *local);
1339 void ieee80211_start_next_roc(struct ieee80211_local *local);
1340 void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata);
1341 void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc);
1342 void ieee80211_sw_roc_work(struct work_struct *work);
1343 void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
1345 /* interface handling */
1346 int ieee80211_iface_init(void);
1347 void ieee80211_iface_exit(void);
1348 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1349 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1350 struct vif_params *params);
1351 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1352 enum nl80211_iftype type);
1353 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1354 void ieee80211_remove_interfaces(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);
1361 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1362 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1364 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1366 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1370 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1371 void ieee80211_tx_pending(unsigned long data);
1372 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1373 struct net_device *dev);
1374 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1375 struct net_device *dev);
1376 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1377 struct sk_buff_head *skbs);
1380 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1381 struct ieee80211_sta_ht_cap *ht_cap);
1382 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1383 struct ieee80211_supported_band *sband,
1384 struct ieee80211_ht_cap *ht_cap_ie,
1385 struct ieee80211_sta_ht_cap *ht_cap);
1386 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1387 const u8 *da, u16 tid,
1388 u16 initiator, u16 reason_code);
1389 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1390 enum ieee80211_smps_mode smps, const u8 *da,
1392 void ieee80211_request_smps_work(struct work_struct *work);
1394 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1395 u16 initiator, u16 reason, bool stop);
1396 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1397 u16 initiator, u16 reason, bool stop);
1398 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1399 enum ieee80211_agg_stop_reason reason);
1400 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1401 struct sta_info *sta,
1402 struct ieee80211_mgmt *mgmt, size_t len);
1403 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1404 struct sta_info *sta,
1405 struct ieee80211_mgmt *mgmt,
1407 void ieee80211_process_addba_request(struct ieee80211_local *local,
1408 struct sta_info *sta,
1409 struct ieee80211_mgmt *mgmt,
1412 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1413 enum ieee80211_agg_stop_reason reason);
1414 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1415 enum ieee80211_agg_stop_reason reason);
1416 void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1417 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
1418 void ieee80211_ba_session_work(struct work_struct *work);
1419 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1420 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1422 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1425 void ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1426 struct ieee80211_supported_band *sband,
1427 struct ieee80211_vht_cap *vht_cap_ie,
1428 struct ieee80211_sta_vht_cap *vht_cap);
1429 /* Spectrum management */
1430 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1431 struct ieee80211_mgmt *mgmt,
1434 /* Suspend/resume and hw reconfiguration */
1435 int ieee80211_reconfig(struct ieee80211_local *local);
1436 void ieee80211_stop_device(struct ieee80211_local *local);
1438 int __ieee80211_suspend(struct ieee80211_hw *hw,
1439 struct cfg80211_wowlan *wowlan);
1441 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1443 struct ieee80211_local *local = hw_to_local(hw);
1445 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
1446 "%s: resume with hardware scan still in progress\n",
1447 wiphy_name(hw->wiphy));
1449 return ieee80211_reconfig(hw_to_local(hw));
1452 /* utility functions/constants */
1453 extern void *mac80211_wiphy_privid; /* for wiphy privid */
1454 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
1455 enum nl80211_iftype type);
1456 int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
1457 int rate, int erp, int short_preamble);
1458 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
1459 struct ieee80211_hdr *hdr, const u8 *tsc,
1461 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1463 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
1464 enum ieee80211_band band);
1466 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1467 struct sk_buff *skb, int tid,
1468 enum ieee80211_band band);
1471 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1472 struct sk_buff *skb, int tid,
1473 enum ieee80211_band band)
1476 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1480 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1481 struct sk_buff *skb, int tid)
1483 struct ieee80211_chanctx_conf *chanctx_conf;
1486 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1487 if (WARN_ON(!chanctx_conf)) {
1493 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
1494 chanctx_conf->def.chan->band);
1498 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
1499 struct sk_buff *skb)
1501 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1502 ieee80211_tx_skb_tid(sdata, skb, 7);
1505 void ieee802_11_parse_elems(u8 *start, size_t len,
1506 struct ieee802_11_elems *elems);
1507 u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
1508 struct ieee802_11_elems *elems,
1509 u64 filter, u32 crc);
1510 u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
1511 enum ieee80211_band band);
1513 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1514 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1515 void ieee80211_dynamic_ps_timer(unsigned long data);
1516 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1517 struct ieee80211_sub_if_data *sdata,
1519 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1520 struct ieee80211_hdr *hdr);
1521 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
1522 struct ieee80211_hdr *hdr, bool ack);
1524 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1525 enum queue_stop_reason reason);
1526 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1527 enum queue_stop_reason reason);
1528 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1529 enum queue_stop_reason reason);
1530 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1531 enum queue_stop_reason reason);
1532 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
1533 void ieee80211_add_pending_skb(struct ieee80211_local *local,
1534 struct sk_buff *skb);
1535 void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
1536 struct sk_buff_head *skbs,
1537 void (*fn)(void *data), void *data);
1538 static inline void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1539 struct sk_buff_head *skbs)
1541 ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL);
1544 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1545 u16 transaction, u16 auth_alg, u16 status,
1546 u8 *extra, size_t extra_len, const u8 *bssid,
1547 const u8 *da, const u8 *key, u8 key_len, u8 key_idx);
1548 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
1549 const u8 *bssid, u16 stype, u16 reason,
1550 bool send_frame, u8 *frame_buf);
1551 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1552 size_t buffer_len, const u8 *ie, size_t ie_len,
1553 enum ieee80211_band band, u32 rate_mask,
1555 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
1556 u8 *dst, u32 ratemask,
1557 struct ieee80211_channel *chan,
1558 const u8 *ssid, size_t ssid_len,
1559 const u8 *ie, size_t ie_len,
1561 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
1562 const u8 *ssid, size_t ssid_len,
1563 const u8 *ie, size_t ie_len,
1564 u32 ratemask, bool directed, bool no_cck,
1565 struct ieee80211_channel *channel, bool scan);
1567 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1568 const size_t supp_rates_len,
1569 const u8 *supp_rates);
1570 u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1571 struct ieee802_11_elems *elems,
1572 enum ieee80211_band band, u32 *basic_rates);
1573 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1574 enum ieee80211_smps_mode smps_mode);
1575 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
1577 size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
1578 const u8 *ids, int n_ids, size_t offset);
1579 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
1580 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1582 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1583 const struct cfg80211_chan_def *chandef,
1585 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1587 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
1588 struct sk_buff *skb, bool need_basic,
1589 enum ieee80211_band band);
1590 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
1591 struct sk_buff *skb, bool need_basic,
1592 enum ieee80211_band band);
1594 /* channel management */
1595 void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
1596 struct ieee80211_ht_operation *ht_oper,
1597 struct cfg80211_chan_def *chandef);
1600 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
1601 const struct cfg80211_chan_def *chandef,
1602 enum ieee80211_chanctx_mode mode);
1603 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
1604 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
1606 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
1607 struct ieee80211_chanctx *chanctx);
1609 #ifdef CONFIG_MAC80211_NOINLINE
1610 #define debug_noinline noinline
1612 #define debug_noinline
1615 #endif /* IEEE80211_I_H */