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];
100 unsigned long last_probe_resp;
102 #ifdef CONFIG_MAC80211_MESH
108 #define IEEE80211_MAX_SUPP_RATES 32
109 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
110 size_t supp_rates_len;
113 * During association, we save an ERP value from a probe response so
114 * that we can feed ERP info to the driver when handling the
115 * association completes. these fields probably won't be up-to-date
116 * otherwise, you probably don't want to use them.
121 /* Keep track of the corruption of the last beacon/probe response. */
124 /* Keep track of what bits of information we have valid info for. */
129 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
130 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
131 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
133 * These are bss flags that are attached to a bss in the
134 * @corrupt_data field of &struct ieee80211_bss.
136 enum ieee80211_bss_corrupt_data_flags {
137 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
138 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
142 * enum ieee80211_valid_data_flags - BSS valid data flags
143 * @IEEE80211_BSS_VALID_DTIM: DTIM data was gathered from non-corrupt IE
144 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
145 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
146 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
148 * These are bss flags that are attached to a bss in the
149 * @valid_data field of &struct ieee80211_bss. They show which parts
150 * of the data structure were recieved as a result of an un-corrupted
151 * beacon/probe response.
153 enum ieee80211_bss_valid_data_flags {
154 IEEE80211_BSS_VALID_DTIM = BIT(0),
155 IEEE80211_BSS_VALID_WMM = BIT(1),
156 IEEE80211_BSS_VALID_RATES = BIT(2),
157 IEEE80211_BSS_VALID_ERP = BIT(3)
160 static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
162 #ifdef CONFIG_MAC80211_MESH
163 return bss->mesh_cfg;
168 static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
170 #ifdef CONFIG_MAC80211_MESH
176 static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
178 #ifdef CONFIG_MAC80211_MESH
179 return bss->mesh_id_len;
185 typedef unsigned __bitwise__ ieee80211_tx_result;
186 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
187 #define TX_DROP ((__force ieee80211_tx_result) 1u)
188 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
190 #define IEEE80211_TX_UNICAST BIT(1)
191 #define IEEE80211_TX_PS_BUFFERED BIT(2)
193 struct ieee80211_tx_data {
195 struct sk_buff_head skbs;
196 struct ieee80211_local *local;
197 struct ieee80211_sub_if_data *sdata;
198 struct sta_info *sta;
199 struct ieee80211_key *key;
205 typedef unsigned __bitwise__ ieee80211_rx_result;
206 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
207 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
208 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
209 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
212 * enum ieee80211_packet_rx_flags - packet RX flags
213 * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
214 * (incl. multicast frames)
215 * @IEEE80211_RX_FRAGMENTED: fragmented frame
216 * @IEEE80211_RX_AMSDU: a-MSDU packet
217 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
218 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
220 * These are per-frame flags that are attached to a frame in the
221 * @rx_flags field of &struct ieee80211_rx_status.
223 enum ieee80211_packet_rx_flags {
224 IEEE80211_RX_RA_MATCH = BIT(1),
225 IEEE80211_RX_FRAGMENTED = BIT(2),
226 IEEE80211_RX_AMSDU = BIT(3),
227 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
228 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
232 * enum ieee80211_rx_flags - RX data flags
234 * @IEEE80211_RX_CMNTR: received on cooked monitor already
235 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
236 * to cfg80211_report_obss_beacon().
238 * These flags are used across handling multiple interfaces
239 * for a single frame.
241 enum ieee80211_rx_flags {
242 IEEE80211_RX_CMNTR = BIT(0),
243 IEEE80211_RX_BEACON_REPORTED = BIT(1),
246 struct ieee80211_rx_data {
248 struct ieee80211_local *local;
249 struct ieee80211_sub_if_data *sdata;
250 struct sta_info *sta;
251 struct ieee80211_key *key;
256 * Index into sequence numbers array, 0..16
257 * since the last (16) is used for non-QoS,
258 * will be 16 on non-QoS frames.
263 * Index into the security IV/PN arrays, 0..16
264 * since the last (16) is used for CCMP-encrypted
265 * management frames, will be set to 16 on mgmt
266 * frames and 0 on non-QoS frames.
276 int head_len, tail_len;
277 struct rcu_head rcu_head;
281 struct rcu_head rcu_head;
287 /* yes, this looks ugly, but guarantees that we can later use
289 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
290 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
291 struct sk_buff_head bc_buf;
292 atomic_t num_sta_ps; /* number of stations in PS mode */
297 struct ieee80211_if_ap {
298 struct beacon_data __rcu *beacon;
299 struct probe_resp __rcu *probe_resp;
301 struct list_head vlans;
304 atomic_t num_mcast_sta; /* number of stations receiving multicast */
307 struct ieee80211_if_wds {
308 struct sta_info *sta;
309 u8 remote_addr[ETH_ALEN];
312 struct ieee80211_if_vlan {
313 struct list_head list;
315 /* used for all tx if the VLAN is configured to 4-addr mode */
316 struct sta_info __rcu *sta;
320 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
321 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
322 __u32 fwded_frames; /* Mesh total forwarded frames */
323 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
324 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
325 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
328 #define PREQ_Q_F_START 0x1
329 #define PREQ_Q_F_REFRESH 0x2
330 struct mesh_preq_queue {
331 struct list_head list;
337 #define IEEE80211_ROC_MIN_LEFT 1
339 #define IEEE80211_ROC_MIN_LEFT (HZ/100)
342 struct ieee80211_roc_work {
343 struct list_head list;
344 struct list_head dependents;
346 struct delayed_work work;
348 struct ieee80211_sub_if_data *sdata;
350 struct ieee80211_channel *chan;
352 bool started, abort, hw_begun, notified;
354 unsigned long hw_start_time;
356 u32 duration, req_duration;
357 struct sk_buff *frame;
358 u64 cookie, mgmt_tx_cookie;
361 /* flags used in struct ieee80211_if_managed.flags */
362 enum ieee80211_sta_flags {
363 IEEE80211_STA_BEACON_POLL = BIT(0),
364 IEEE80211_STA_CONNECTION_POLL = BIT(1),
365 IEEE80211_STA_CONTROL_PORT = BIT(2),
366 IEEE80211_STA_DISABLE_HT = BIT(4),
367 IEEE80211_STA_CSA_RECEIVED = BIT(5),
368 IEEE80211_STA_MFP_ENABLED = BIT(6),
369 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
370 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
371 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
372 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
373 IEEE80211_STA_DISABLE_VHT = BIT(11),
374 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
375 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
378 struct ieee80211_mgd_auth_data {
379 struct cfg80211_bss *bss;
380 unsigned long timeout;
382 u16 algorithm, expected_transaction;
384 u8 key[WLAN_KEY_LEN_WEP104];
388 u16 sae_trans, sae_status;
393 struct ieee80211_mgd_assoc_data {
394 struct cfg80211_bss *bss;
395 const u8 *supp_rates;
397 unsigned long timeout;
401 u8 prev_bssid[ETH_ALEN];
402 u8 ssid[IEEE80211_MAX_SSID_LEN];
416 struct ieee80211_if_managed {
417 struct timer_list timer;
418 struct timer_list conn_mon_timer;
419 struct timer_list bcn_mon_timer;
420 struct timer_list chswitch_timer;
421 struct work_struct monitor_work;
422 struct work_struct chswitch_work;
423 struct work_struct beacon_connection_loss_work;
424 struct work_struct csa_connection_drop_work;
426 unsigned long beacon_timeout;
427 unsigned long probe_timeout;
428 int probe_send_count;
429 bool nullfunc_failed;
432 struct cfg80211_bss *associated;
433 struct ieee80211_mgd_auth_data *auth_data;
434 struct ieee80211_mgd_assoc_data *assoc_data;
440 unsigned long timers_running; /* used for quiesce/restart */
441 bool powersave; /* powersave requested for this iface */
442 bool broken_ap; /* AP is broken -- turn off powersave */
443 enum ieee80211_smps_mode req_smps, /* requested smps mode */
444 driver_smps_mode; /* smps mode request */
446 struct work_struct request_smps_work;
450 bool beacon_crc_valid;
454 IEEE80211_MFP_DISABLED,
455 IEEE80211_MFP_OPTIONAL,
456 IEEE80211_MFP_REQUIRED
457 } mfp; /* management frame protection */
460 * Bitmask of enabled u-apsd queues,
461 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
464 unsigned int uapsd_queues;
467 * Maximum number of buffered frames AP can deliver during a
468 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
469 * Needs a new association to take effect.
471 unsigned int uapsd_max_sp_len;
473 int wmm_last_param_set;
479 /* Signal strength from the last Beacon frame in the current BSS. */
480 int last_beacon_signal;
483 * Weighted average of the signal strength from Beacon frames in the
484 * current BSS. This is in units of 1/16 of the signal unit to maintain
485 * accuracy and to speed up calculations, i.e., the value need to be
486 * divided by 16 to get the actual value.
488 int ave_beacon_signal;
491 * Number of Beacon frames used in ave_beacon_signal. This can be used
492 * to avoid generating less reliable cqm events that would be based
493 * only on couple of received frames.
495 unsigned int count_beacon_signal;
498 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
499 * that triggered a cqm event. 0 indicates that no event has been
500 * generated for the current association.
502 int last_cqm_event_signal;
505 * State variables for keeping track of RSSI of the AP currently
506 * connected to and informing driver when RSSI has gone
507 * below/above a certain threshold.
509 int rssi_min_thold, rssi_max_thold;
510 int last_ave_beacon_signal;
512 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
513 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
516 struct ieee80211_if_ibss {
517 struct timer_list timer;
521 unsigned long last_scan_completed;
532 unsigned int auth_frame_registrations;
534 u8 bssid[ETH_ALEN] __aligned(2);
535 u8 ssid[IEEE80211_MAX_SSID_LEN];
538 struct ieee80211_channel *channel;
539 enum nl80211_channel_type channel_type;
541 unsigned long ibss_join_req;
542 /* probe response/beacon for IBSS */
543 struct sk_buff __rcu *presp;
546 spinlock_t incomplete_lock;
547 struct list_head incomplete_stations;
550 IEEE80211_IBSS_MLME_SEARCH,
551 IEEE80211_IBSS_MLME_JOINED,
556 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
558 * these declarations define the interface, which enables
559 * vendor-specific mesh synchronization
562 struct ieee802_11_elems;
563 struct ieee80211_mesh_sync_ops {
564 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
566 struct ieee80211_mgmt *mgmt,
567 struct ieee802_11_elems *elems,
568 struct ieee80211_rx_status *rx_status);
569 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata);
570 /* add other framework functions here */
573 struct ieee80211_if_mesh {
574 struct timer_list housekeeping_timer;
575 struct timer_list mesh_path_timer;
576 struct timer_list mesh_path_root_timer;
578 unsigned long timers_running;
580 unsigned long wrkq_flags;
582 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
584 /* Active Path Selection Protocol Identifier */
586 /* Active Path Selection Metric Identifier */
588 /* Congestion Control Mode Identifier */
590 /* Synchronization Protocol Identifier */
592 /* Authentication Protocol Identifier */
594 /* Local mesh Sequence Number */
596 /* Last used PREQ ID */
599 /* Timestamp of last SN update */
600 unsigned long last_sn_update;
601 /* Time when it's ok to send next PERR */
602 unsigned long next_perr;
603 /* Timestamp of last PREQ sent */
604 unsigned long last_preq;
605 struct mesh_rmc *rmc;
606 spinlock_t mesh_preq_queue_lock;
607 struct mesh_preq_queue preq_queue;
609 struct mesh_stats mshstats;
610 struct mesh_config mshcfg;
611 atomic_t estab_plinks;
613 bool accepting_plinks;
618 IEEE80211_MESH_SEC_NONE = 0x0,
619 IEEE80211_MESH_SEC_AUTHED = 0x1,
620 IEEE80211_MESH_SEC_SECURED = 0x2,
622 /* Extensible Synchronization Framework */
623 const struct ieee80211_mesh_sync_ops *sync_ops;
624 s64 sync_offset_clockdrift_max;
625 spinlock_t sync_offset_lock;
629 #ifdef CONFIG_MAC80211_MESH
630 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
631 do { (msh)->mshstats.name++; } while (0)
633 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
638 * enum ieee80211_sub_if_data_flags - virtual interface flags
640 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
641 * @IEEE80211_SDATA_PROMISC: interface is promisc
642 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
643 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
644 * associated stations and deliver multicast frames both
645 * back to wireless media and to the local net stack.
646 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
647 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
649 enum ieee80211_sub_if_data_flags {
650 IEEE80211_SDATA_ALLMULTI = BIT(0),
651 IEEE80211_SDATA_PROMISC = BIT(1),
652 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
653 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
654 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
655 IEEE80211_SDATA_IN_DRIVER = BIT(5),
659 * enum ieee80211_sdata_state_bits - virtual interface state bits
660 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
661 * mirrors netif_running() but is separate for interface type
662 * change handling while the interface is up
663 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
664 * mode, so queues are stopped
666 enum ieee80211_sdata_state_bits {
668 SDATA_STATE_OFFCHANNEL,
672 * enum ieee80211_chanctx_mode - channel context configuration mode
674 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
675 * multiple interfaces
676 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
677 * only by a single interface. This can be used for example for
678 * non-fixed channel IBSS.
680 enum ieee80211_chanctx_mode {
681 IEEE80211_CHANCTX_SHARED,
682 IEEE80211_CHANCTX_EXCLUSIVE
685 struct ieee80211_chanctx {
686 struct list_head list;
687 struct rcu_head rcu_head;
689 enum ieee80211_chanctx_mode mode;
692 struct ieee80211_chanctx_conf conf;
695 struct ieee80211_sub_if_data {
696 struct list_head list;
698 struct wireless_dev wdev;
701 struct list_head key_list;
703 /* count for keys needing tailroom space allocation */
704 int crypto_tx_tailroom_needed_cnt;
706 struct net_device *dev;
707 struct ieee80211_local *local;
713 int drop_unencrypted;
717 /* to detect idle changes */
720 /* Fragment table for host-based reassembly */
721 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
722 unsigned int fragment_next;
724 /* TID bitmap for NoAck policy */
727 /* bit field of ACM bits (BIT(802.1D tag)) */
730 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
731 struct ieee80211_key __rcu *default_unicast_key;
732 struct ieee80211_key __rcu *default_multicast_key;
733 struct ieee80211_key __rcu *default_mgmt_key;
736 __be16 control_port_protocol;
737 bool control_port_no_encrypt;
739 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
741 /* used to reconfigure hardware SM PS */
742 struct work_struct recalc_smps;
744 struct work_struct work;
745 struct sk_buff_head skb_queue;
747 bool arp_filter_state;
750 enum ieee80211_smps_mode smps_mode;
752 int user_power_level; /* in dBm */
753 int ap_power_level; /* in dBm */
756 * AP this belongs to: self in AP mode and
757 * corresponding AP in VLAN mode, NULL for
758 * all others (might be needed later in IBSS)
760 struct ieee80211_if_ap *bss;
762 /* bitmap of allowed (non-MCS) rate indexes for rate control */
763 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
764 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
767 struct ieee80211_if_ap ap;
768 struct ieee80211_if_wds wds;
769 struct ieee80211_if_vlan vlan;
770 struct ieee80211_if_managed mgd;
771 struct ieee80211_if_ibss ibss;
772 struct ieee80211_if_mesh mesh;
776 spinlock_t cleanup_stations_lock;
777 struct list_head cleanup_stations;
778 struct work_struct cleanup_stations_wk;
780 #ifdef CONFIG_MAC80211_DEBUGFS
783 struct dentry *subdir_stations;
784 struct dentry *default_unicast_key;
785 struct dentry *default_multicast_key;
786 struct dentry *default_mgmt_key;
789 /* must be last, dynamically sized area in this! */
790 struct ieee80211_vif vif;
794 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
796 return container_of(p, struct ieee80211_sub_if_data, vif);
799 static inline enum ieee80211_band
800 ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
802 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
803 struct ieee80211_chanctx_conf *chanctx_conf;
806 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
807 if (!WARN_ON(!chanctx_conf))
808 band = chanctx_conf->def.chan->band;
814 enum sdata_queue_type {
815 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
816 IEEE80211_SDATA_QUEUE_AGG_START = 1,
817 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
821 IEEE80211_RX_MSG = 1,
822 IEEE80211_TX_STATUS_MSG = 2,
823 IEEE80211_EOSP_MSG = 3,
826 struct skb_eosp_msg_data {
827 u8 sta[ETH_ALEN], iface[ETH_ALEN];
830 enum queue_stop_reason {
831 IEEE80211_QUEUE_STOP_REASON_DRIVER,
832 IEEE80211_QUEUE_STOP_REASON_PS,
833 IEEE80211_QUEUE_STOP_REASON_CSA,
834 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
835 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
836 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
839 #ifdef CONFIG_MAC80211_LEDS
840 struct tpt_led_trigger {
841 struct led_trigger trig;
843 const struct ieee80211_tpt_blink *blink_table;
844 unsigned int blink_table_len;
845 struct timer_list timer;
846 unsigned long prev_traffic;
847 unsigned long tx_bytes, rx_bytes;
848 unsigned int active, want;
854 * mac80211 scan flags - currently active scan mode
856 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
857 * well be on the operating channel
858 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
859 * determine if we are on the operating channel or not
860 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
861 * channel. This should not interrupt normal traffic.
862 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
863 * that the scan completed.
864 * @SCAN_ABORTED: Set for our scan work function when the driver reported
865 * a scan complete for an aborted scan.
870 SCAN_ONCHANNEL_SCANNING,
876 * enum mac80211_scan_state - scan state machine states
878 * @SCAN_DECISION: Main entry point to the scan state machine, this state
879 * determines if we should keep on scanning or switch back to the
881 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
882 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
883 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
885 * @SCAN_RESUME: Resume the scan and scan the next channel
886 * @SCAN_ABORT: Abort the scan and go back to operating channel
888 enum mac80211_scan_state {
897 struct ieee80211_local {
898 /* embed the driver visible part.
899 * don't cast (use the static inlines below), but we keep
900 * it first anyway so they become a no-op */
901 struct ieee80211_hw hw;
903 const struct ieee80211_ops *ops;
906 * private workqueue to mac80211. mac80211 makes this accessible
907 * via ieee80211_queue_work()
909 struct workqueue_struct *workqueue;
911 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
912 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
913 spinlock_t queue_stop_reason_lock;
916 int monitors, cooked_mntrs;
917 /* number of interfaces with corresponding FIF_ flags */
918 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
921 unsigned int filter_flags; /* FIF_* */
923 bool wiphy_ciphers_allocated;
927 /* protects the aggregated multicast list and filter calls */
928 spinlock_t filter_lock;
930 /* used for uploading changed mc list */
931 struct work_struct reconfig_filter;
933 /* aggregated multicast list */
934 struct netdev_hw_addr_list mc_list;
936 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
939 * suspended is true if we finished all the suspend _and_ we have
940 * not yet come up from resume. This is to be used by mac80211
941 * to ensure driver sanity during suspend and mac80211's own
942 * sanity. It can eventually be used for WoW as well.
947 * Resuming is true while suspended, but when we're reprogramming the
948 * hardware -- at that time it's allowed to use ieee80211_queue_work()
949 * again even though some other parts of the stack are still suspended
950 * and we still drop received frames to avoid waking the stack.
955 * quiescing is true during the suspend process _only_ to
956 * ease timer cancelling etc.
960 /* device is started */
963 /* device is during a HW reconfig */
966 /* wowlan is enabled -- don't reconfig on resume */
969 /* number of RX chains the hardware has */
972 int tx_headroom; /* required headroom for hardware/radiotap */
974 /* Tasklet and skb queue to process calls from IRQ mode. All frames
975 * added to skb_queue will be processed, but frames in
976 * skb_queue_unreliable may be dropped if the total length of these
977 * queues increases over the limit. */
978 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
979 struct tasklet_struct tasklet;
980 struct sk_buff_head skb_queue;
981 struct sk_buff_head skb_queue_unreliable;
984 * Internal FIFO queue which is shared between multiple rx path
985 * stages. Its main task is to provide a serialization mechanism,
986 * so all rx handlers can enjoy having exclusive access to their
987 * private data structures.
989 struct sk_buff_head rx_skb_queue;
990 bool running_rx_handler; /* protected by rx_skb_queue.lock */
994 * The mutex only protects the list, hash table and
995 * counter, reads are done with RCU.
997 struct mutex sta_mtx;
999 unsigned long num_sta;
1000 struct list_head sta_list;
1001 struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
1002 struct timer_list sta_cleanup;
1005 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1006 struct tasklet_struct tx_pending_tasklet;
1008 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1010 /* number of interfaces with corresponding IFF_ flags */
1011 atomic_t iff_allmultis, iff_promiscs;
1013 struct rate_control_ref *rate_ctrl;
1015 struct crypto_cipher *wep_tx_tfm;
1016 struct crypto_cipher *wep_rx_tfm;
1020 struct list_head interfaces;
1021 struct mutex iflist_mtx;
1024 * Key mutex, protects sdata's key_list and sta_info's
1025 * key pointers (write access, they're RCU.)
1027 struct mutex key_mtx;
1029 /* mutex for scan and work locking */
1032 /* Scanning and BSS list */
1033 unsigned long scanning;
1034 struct cfg80211_ssid scan_ssid;
1035 struct cfg80211_scan_request *int_scan_req;
1036 struct cfg80211_scan_request *scan_req, *hw_scan_req;
1037 struct ieee80211_channel *scan_channel;
1038 enum ieee80211_band hw_scan_band;
1039 int scan_channel_idx;
1041 int hw_scan_ies_bufsize;
1043 struct work_struct sched_scan_stopped_work;
1044 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1046 unsigned long leave_oper_channel_time;
1047 enum mac80211_scan_state next_scan_state;
1048 struct delayed_work scan_work;
1049 struct ieee80211_sub_if_data __rcu *scan_sdata;
1050 struct ieee80211_channel *csa_channel;
1051 /* For backward compatibility only -- do not use */
1052 struct ieee80211_channel *_oper_channel;
1053 enum nl80211_channel_type _oper_channel_type;
1055 /* Temporary remain-on-channel for off-channel operations */
1056 struct ieee80211_channel *tmp_channel;
1058 /* channel contexts */
1059 struct list_head chanctx_list;
1060 struct mutex chanctx_mtx;
1063 /* dot11CountersTable */
1064 u32 dot11TransmittedFragmentCount;
1065 u32 dot11MulticastTransmittedFrameCount;
1066 u32 dot11FailedCount;
1067 u32 dot11RetryCount;
1068 u32 dot11MultipleRetryCount;
1069 u32 dot11FrameDuplicateCount;
1070 u32 dot11ReceivedFragmentCount;
1071 u32 dot11MulticastReceivedFrameCount;
1072 u32 dot11TransmittedFrameCount;
1074 #ifdef CONFIG_MAC80211_LEDS
1075 int tx_led_counter, rx_led_counter;
1076 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
1077 struct tpt_led_trigger *tpt_led_trigger;
1078 char tx_led_name[32], rx_led_name[32],
1079 assoc_led_name[32], radio_led_name[32];
1082 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1083 /* TX/RX handler statistics */
1084 unsigned int tx_handlers_drop;
1085 unsigned int tx_handlers_queued;
1086 unsigned int tx_handlers_drop_unencrypted;
1087 unsigned int tx_handlers_drop_fragment;
1088 unsigned int tx_handlers_drop_wep;
1089 unsigned int tx_handlers_drop_not_assoc;
1090 unsigned int tx_handlers_drop_unauth_port;
1091 unsigned int rx_handlers_drop;
1092 unsigned int rx_handlers_queued;
1093 unsigned int rx_handlers_drop_nullfunc;
1094 unsigned int rx_handlers_drop_defrag;
1095 unsigned int rx_handlers_drop_short;
1096 unsigned int tx_expand_skb_head;
1097 unsigned int tx_expand_skb_head_cloned;
1098 unsigned int rx_expand_skb_head;
1099 unsigned int rx_expand_skb_head2;
1100 unsigned int rx_handlers_fragments;
1101 unsigned int tx_status_drop;
1102 #define I802_DEBUG_INC(c) (c)++
1103 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1104 #define I802_DEBUG_INC(c) do { } while (0)
1105 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1108 int total_ps_buffered; /* total number of all buffered unicast and
1109 * multicast packets for power saving stations
1113 bool offchannel_ps_enabled;
1115 * PS can only be enabled when we have exactly one managed
1116 * interface (and monitors) in PS, this then points there.
1118 struct ieee80211_sub_if_data *ps_sdata;
1119 struct work_struct dynamic_ps_enable_work;
1120 struct work_struct dynamic_ps_disable_work;
1121 struct timer_list dynamic_ps_timer;
1122 struct notifier_block network_latency_notifier;
1123 struct notifier_block ifa_notifier;
1126 * The dynamic ps timeout configured from user space via WEXT -
1127 * this will override whatever chosen by mac80211 internally.
1129 int dynamic_ps_forced_timeout;
1130 int dynamic_ps_user_timeout;
1131 bool disable_dynamic_ps;
1133 int user_power_level; /* in dBm, for all interfaces */
1135 enum ieee80211_smps_mode smps_mode;
1137 struct work_struct restart_work;
1139 #ifdef CONFIG_MAC80211_DEBUGFS
1140 struct local_debugfsdentries {
1141 struct dentry *rcdir;
1142 struct dentry *keys;
1147 * Remain-on-channel support
1149 struct list_head roc_list;
1150 struct work_struct hw_roc_start, hw_roc_done;
1151 unsigned long hw_roc_start_time;
1152 u64 roc_cookie_counter;
1154 struct idr ack_status_frames;
1155 spinlock_t ack_status_lock;
1157 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1159 /* dummy netdev for use w/ NAPI */
1160 struct net_device napi_dev;
1162 struct napi_struct napi;
1164 /* virtual monitor interface */
1165 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1166 struct cfg80211_chan_def monitor_chandef;
1169 static inline struct ieee80211_sub_if_data *
1170 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1172 return netdev_priv(dev);
1175 static inline struct ieee80211_sub_if_data *
1176 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1178 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1181 /* this struct represents 802.11n's RA/TID combination */
1182 struct ieee80211_ra_tid {
1187 /* Parsed Information Elements */
1188 struct ieee802_11_elems {
1192 /* pointers to IEs */
1198 struct ieee80211_tim_ie *tim;
1207 struct ieee80211_ht_cap *ht_cap_elem;
1208 struct ieee80211_ht_operation *ht_operation;
1209 struct ieee80211_vht_cap *vht_cap_elem;
1210 struct ieee80211_vht_operation *vht_operation;
1211 struct ieee80211_meshconf_ie *mesh_config;
1217 struct ieee80211_rann_ie *rann;
1218 struct ieee80211_channel_sw_ie *ch_switch_ie;
1220 u8 *pwr_constr_elem;
1221 u8 *quiet_elem; /* first quite element */
1224 /* length of them, respectively */
1236 u8 ext_supp_rates_len;
1244 u8 country_elem_len;
1246 u8 num_of_quiet_elem; /* can be more the one */
1249 /* whether a parse error occurred while retrieving these elements */
1253 static inline struct ieee80211_local *hw_to_local(
1254 struct ieee80211_hw *hw)
1256 return container_of(hw, struct ieee80211_local, hw);
1260 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1262 return ether_addr_equal(raddr, addr) ||
1263 is_broadcast_ether_addr(raddr);
1267 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1269 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1270 status->flag & RX_FLAG_MACTIME_END);
1271 return status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END);
1274 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1275 struct ieee80211_rx_status *status,
1276 unsigned int mpdu_len,
1277 unsigned int mpdu_offset);
1278 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1279 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1280 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1282 void ieee80211_configure_filter(struct ieee80211_local *local);
1283 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1286 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1287 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1288 struct cfg80211_auth_request *req);
1289 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1290 struct cfg80211_assoc_request *req);
1291 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1292 struct cfg80211_deauth_request *req);
1293 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1294 struct cfg80211_disassoc_request *req);
1295 void ieee80211_send_pspoll(struct ieee80211_local *local,
1296 struct ieee80211_sub_if_data *sdata);
1297 void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
1298 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1299 int ieee80211_max_network_latency(struct notifier_block *nb,
1300 unsigned long data, void *dummy);
1301 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1302 void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
1303 struct ieee80211_channel_sw_ie *sw_elem,
1304 struct ieee80211_bss *bss,
1306 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
1307 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1308 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1309 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1310 struct sk_buff *skb);
1311 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1312 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1313 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1316 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1317 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1318 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1319 const u8 *bssid, const u8 *addr, u32 supp_rates);
1320 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1321 struct cfg80211_ibss_params *params);
1322 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1323 void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
1324 void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
1325 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1326 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1327 struct sk_buff *skb);
1330 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1331 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1332 struct sk_buff *skb);
1334 /* scan/BSS handling */
1335 void ieee80211_scan_work(struct work_struct *work);
1336 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1337 const u8 *ssid, u8 ssid_len,
1338 struct ieee80211_channel *chan);
1339 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1340 struct cfg80211_scan_request *req);
1341 void ieee80211_scan_cancel(struct ieee80211_local *local);
1342 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1343 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1345 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1346 struct ieee80211_bss *
1347 ieee80211_bss_info_update(struct ieee80211_local *local,
1348 struct ieee80211_rx_status *rx_status,
1349 struct ieee80211_mgmt *mgmt,
1351 struct ieee802_11_elems *elems,
1352 struct ieee80211_channel *channel,
1354 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1355 struct ieee80211_bss *bss);
1357 /* scheduled scan handling */
1358 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1359 struct cfg80211_sched_scan_request *req);
1360 int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
1361 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1363 /* off-channel helpers */
1364 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local,
1365 bool offchannel_ps_enable);
1366 void ieee80211_offchannel_return(struct ieee80211_local *local,
1367 bool offchannel_ps_disable);
1368 void ieee80211_roc_setup(struct ieee80211_local *local);
1369 void ieee80211_start_next_roc(struct ieee80211_local *local);
1370 void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata);
1371 void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc);
1372 void ieee80211_sw_roc_work(struct work_struct *work);
1373 void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
1375 /* interface handling */
1376 int ieee80211_iface_init(void);
1377 void ieee80211_iface_exit(void);
1378 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1379 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1380 struct vif_params *params);
1381 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1382 enum nl80211_iftype type);
1383 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1384 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1385 void ieee80211_recalc_idle(struct ieee80211_local *local);
1386 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1388 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1389 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
1391 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1392 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1394 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1396 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1400 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1401 void ieee80211_tx_pending(unsigned long data);
1402 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1403 struct net_device *dev);
1404 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1405 struct net_device *dev);
1406 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1407 struct sk_buff_head *skbs);
1410 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1411 struct ieee80211_sta_ht_cap *ht_cap);
1412 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1413 struct ieee80211_supported_band *sband,
1414 struct ieee80211_ht_cap *ht_cap_ie,
1415 struct ieee80211_sta_ht_cap *ht_cap);
1416 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1417 const u8 *da, u16 tid,
1418 u16 initiator, u16 reason_code);
1419 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1420 enum ieee80211_smps_mode smps, const u8 *da,
1422 void ieee80211_request_smps_work(struct work_struct *work);
1424 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1425 u16 initiator, u16 reason, bool stop);
1426 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1427 u16 initiator, u16 reason, bool stop);
1428 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, bool tx);
1429 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1430 struct sta_info *sta,
1431 struct ieee80211_mgmt *mgmt, size_t len);
1432 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1433 struct sta_info *sta,
1434 struct ieee80211_mgmt *mgmt,
1436 void ieee80211_process_addba_request(struct ieee80211_local *local,
1437 struct sta_info *sta,
1438 struct ieee80211_mgmt *mgmt,
1441 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1442 enum ieee80211_back_parties initiator,
1444 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1445 enum ieee80211_back_parties initiator,
1447 void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1448 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
1449 void ieee80211_ba_session_work(struct work_struct *work);
1450 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1451 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1453 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1456 void ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1457 struct ieee80211_supported_band *sband,
1458 struct ieee80211_vht_cap *vht_cap_ie,
1459 struct ieee80211_sta_vht_cap *vht_cap);
1460 /* Spectrum management */
1461 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1462 struct ieee80211_mgmt *mgmt,
1465 /* Suspend/resume and hw reconfiguration */
1466 int ieee80211_reconfig(struct ieee80211_local *local);
1467 void ieee80211_stop_device(struct ieee80211_local *local);
1469 int __ieee80211_suspend(struct ieee80211_hw *hw,
1470 struct cfg80211_wowlan *wowlan);
1472 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1474 struct ieee80211_local *local = hw_to_local(hw);
1476 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
1477 "%s: resume with hardware scan still in progress\n",
1478 wiphy_name(hw->wiphy));
1480 return ieee80211_reconfig(hw_to_local(hw));
1483 /* utility functions/constants */
1484 extern void *mac80211_wiphy_privid; /* for wiphy privid */
1485 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
1486 enum nl80211_iftype type);
1487 int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
1488 int rate, int erp, int short_preamble);
1489 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
1490 struct ieee80211_hdr *hdr, const u8 *tsc,
1492 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1494 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
1495 enum ieee80211_band band);
1497 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1498 struct sk_buff *skb, int tid,
1499 enum ieee80211_band band);
1502 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1503 struct sk_buff *skb, int tid,
1504 enum ieee80211_band band)
1507 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1511 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1512 struct sk_buff *skb, int tid)
1514 struct ieee80211_chanctx_conf *chanctx_conf;
1517 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1518 if (WARN_ON(!chanctx_conf)) {
1524 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
1525 chanctx_conf->def.chan->band);
1529 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
1530 struct sk_buff *skb)
1532 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1533 ieee80211_tx_skb_tid(sdata, skb, 7);
1536 void ieee802_11_parse_elems(u8 *start, size_t len,
1537 struct ieee802_11_elems *elems);
1538 u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
1539 struct ieee802_11_elems *elems,
1540 u64 filter, u32 crc);
1541 u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
1542 enum ieee80211_band band);
1544 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1545 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1546 void ieee80211_dynamic_ps_timer(unsigned long data);
1547 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1548 struct ieee80211_sub_if_data *sdata,
1550 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1551 struct ieee80211_hdr *hdr);
1552 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
1553 struct ieee80211_hdr *hdr, bool ack);
1555 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1556 enum queue_stop_reason reason);
1557 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1558 enum queue_stop_reason reason);
1559 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1560 enum queue_stop_reason reason);
1561 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1562 enum queue_stop_reason reason);
1563 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
1564 void ieee80211_add_pending_skb(struct ieee80211_local *local,
1565 struct sk_buff *skb);
1566 void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
1567 struct sk_buff_head *skbs,
1568 void (*fn)(void *data), void *data);
1569 static inline void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1570 struct sk_buff_head *skbs)
1572 ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL);
1575 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1576 u16 transaction, u16 auth_alg, u16 status,
1577 u8 *extra, size_t extra_len, const u8 *bssid,
1578 const u8 *da, const u8 *key, u8 key_len, u8 key_idx);
1579 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
1580 const u8 *bssid, u16 stype, u16 reason,
1581 bool send_frame, u8 *frame_buf);
1582 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1583 size_t buffer_len, const u8 *ie, size_t ie_len,
1584 enum ieee80211_band band, u32 rate_mask,
1586 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
1587 u8 *dst, u32 ratemask,
1588 struct ieee80211_channel *chan,
1589 const u8 *ssid, size_t ssid_len,
1590 const u8 *ie, size_t ie_len,
1592 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
1593 const u8 *ssid, size_t ssid_len,
1594 const u8 *ie, size_t ie_len,
1595 u32 ratemask, bool directed, bool no_cck,
1596 struct ieee80211_channel *channel, bool scan);
1598 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1599 const size_t supp_rates_len,
1600 const u8 *supp_rates);
1601 u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1602 struct ieee802_11_elems *elems,
1603 enum ieee80211_band band, u32 *basic_rates);
1604 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1605 enum ieee80211_smps_mode smps_mode);
1606 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
1608 size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
1609 const u8 *ids, int n_ids, size_t offset);
1610 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
1611 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1613 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1614 const struct cfg80211_chan_def *chandef,
1616 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1618 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
1619 struct sk_buff *skb, bool need_basic,
1620 enum ieee80211_band band);
1621 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
1622 struct sk_buff *skb, bool need_basic,
1623 enum ieee80211_band band);
1625 /* channel management */
1626 void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
1627 struct ieee80211_ht_operation *ht_oper,
1628 struct cfg80211_chan_def *chandef);
1631 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
1632 const struct cfg80211_chan_def *chandef,
1633 enum ieee80211_chanctx_mode mode);
1634 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
1635 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
1637 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
1638 struct ieee80211_chanctx *chanctx);
1640 #ifdef CONFIG_MAC80211_NOINLINE
1641 #define debug_noinline noinline
1643 #define debug_noinline
1646 #endif /* IEEE80211_I_H */