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))
60 * Some APs experience problems when working with U-APSD. Decrease the
61 * probability of that happening by using legacy mode for all ACs but VO.
62 * The AP that caused us trouble was a Cisco 4410N. It ignores our
63 * setting, and always treats non-VO ACs as legacy.
65 #define IEEE80211_DEFAULT_UAPSD_QUEUES \
66 IEEE80211_WMM_IE_STA_QOSINFO_AC_VO
68 #define IEEE80211_DEFAULT_MAX_SP_LEN \
69 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
71 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
73 struct ieee80211_fragment_entry {
74 unsigned long first_frag_time;
76 unsigned int rx_queue;
77 unsigned int last_frag;
78 unsigned int extra_len;
79 struct sk_buff_head skb_list;
80 int ccmp; /* Whether fragments were encrypted with CCMP */
81 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
85 struct ieee80211_bss {
86 /* don't want to look up all the time */
88 u8 ssid[IEEE80211_MAX_SSID_LEN];
97 unsigned long last_probe_resp;
99 #ifdef CONFIG_MAC80211_MESH
105 #define IEEE80211_MAX_SUPP_RATES 32
106 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
107 size_t supp_rates_len;
110 * During association, we save an ERP value from a probe response so
111 * that we can feed ERP info to the driver when handling the
112 * association completes. these fields probably won't be up-to-date
113 * otherwise, you probably don't want to use them.
118 /* Keep track of the corruption of the last beacon/probe response. */
121 /* Keep track of what bits of information we have valid info for. */
126 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
127 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
128 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
130 * These are bss flags that are attached to a bss in the
131 * @corrupt_data field of &struct ieee80211_bss.
133 enum ieee80211_bss_corrupt_data_flags {
134 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
135 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
139 * enum ieee80211_valid_data_flags - BSS valid data flags
140 * @IEEE80211_BSS_VALID_DTIM: DTIM data was gathered from non-corrupt IE
141 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
142 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
143 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
145 * These are bss flags that are attached to a bss in the
146 * @valid_data field of &struct ieee80211_bss. They show which parts
147 * of the data structure were recieved as a result of an un-corrupted
148 * beacon/probe response.
150 enum ieee80211_bss_valid_data_flags {
151 IEEE80211_BSS_VALID_DTIM = BIT(0),
152 IEEE80211_BSS_VALID_WMM = BIT(1),
153 IEEE80211_BSS_VALID_RATES = BIT(2),
154 IEEE80211_BSS_VALID_ERP = BIT(3)
157 static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
159 #ifdef CONFIG_MAC80211_MESH
160 return bss->mesh_cfg;
165 static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
167 #ifdef CONFIG_MAC80211_MESH
173 static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
175 #ifdef CONFIG_MAC80211_MESH
176 return bss->mesh_id_len;
182 typedef unsigned __bitwise__ ieee80211_tx_result;
183 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
184 #define TX_DROP ((__force ieee80211_tx_result) 1u)
185 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
187 #define IEEE80211_TX_UNICAST BIT(1)
188 #define IEEE80211_TX_PS_BUFFERED BIT(2)
190 struct ieee80211_tx_data {
192 struct sk_buff_head skbs;
193 struct ieee80211_local *local;
194 struct ieee80211_sub_if_data *sdata;
195 struct sta_info *sta;
196 struct ieee80211_key *key;
202 typedef unsigned __bitwise__ ieee80211_rx_result;
203 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
204 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
205 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
206 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
209 * enum ieee80211_packet_rx_flags - packet RX flags
210 * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
211 * (incl. multicast frames)
212 * @IEEE80211_RX_FRAGMENTED: fragmented frame
213 * @IEEE80211_RX_AMSDU: a-MSDU packet
214 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
215 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
217 * These are per-frame flags that are attached to a frame in the
218 * @rx_flags field of &struct ieee80211_rx_status.
220 enum ieee80211_packet_rx_flags {
221 IEEE80211_RX_RA_MATCH = BIT(1),
222 IEEE80211_RX_FRAGMENTED = BIT(2),
223 IEEE80211_RX_AMSDU = BIT(3),
224 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
225 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
229 * enum ieee80211_rx_flags - RX data flags
231 * @IEEE80211_RX_CMNTR: received on cooked monitor already
232 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
233 * to cfg80211_report_obss_beacon().
235 * These flags are used across handling multiple interfaces
236 * for a single frame.
238 enum ieee80211_rx_flags {
239 IEEE80211_RX_CMNTR = BIT(0),
240 IEEE80211_RX_BEACON_REPORTED = BIT(1),
243 struct ieee80211_rx_data {
245 struct ieee80211_local *local;
246 struct ieee80211_sub_if_data *sdata;
247 struct sta_info *sta;
248 struct ieee80211_key *key;
253 * Index into sequence numbers array, 0..16
254 * since the last (16) is used for non-QoS,
255 * will be 16 on non-QoS frames.
260 * Index into the security IV/PN arrays, 0..16
261 * since the last (16) is used for CCMP-encrypted
262 * management frames, will be set to 16 on mgmt
263 * frames and 0 on non-QoS frames.
273 int head_len, tail_len;
274 struct rcu_head rcu_head;
278 struct rcu_head rcu_head;
283 struct ieee80211_if_ap {
284 struct beacon_data __rcu *beacon;
285 struct probe_resp __rcu *probe_resp;
287 struct list_head vlans;
289 /* yes, this looks ugly, but guarantees that we can later use
291 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
292 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
293 struct sk_buff_head ps_bc_buf;
294 atomic_t num_sta_ps; /* number of stations in PS mode */
295 atomic_t num_mcast_sta; /* number of stations receiving multicast */
300 struct ieee80211_if_wds {
301 struct sta_info *sta;
302 u8 remote_addr[ETH_ALEN];
305 struct ieee80211_if_vlan {
306 struct list_head list;
308 /* used for all tx if the VLAN is configured to 4-addr mode */
309 struct sta_info __rcu *sta;
313 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
314 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
315 __u32 fwded_frames; /* Mesh total forwarded frames */
316 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
317 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
318 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
319 atomic_t estab_plinks;
322 #define PREQ_Q_F_START 0x1
323 #define PREQ_Q_F_REFRESH 0x2
324 struct mesh_preq_queue {
325 struct list_head list;
331 #define IEEE80211_ROC_MIN_LEFT 1
333 #define IEEE80211_ROC_MIN_LEFT (HZ/100)
336 struct ieee80211_roc_work {
337 struct list_head list;
338 struct list_head dependents;
340 struct delayed_work work;
342 struct ieee80211_sub_if_data *sdata;
344 struct ieee80211_channel *chan;
345 enum nl80211_channel_type chan_type;
347 bool started, abort, hw_begun, notified;
349 unsigned long hw_start_time;
351 u32 duration, req_duration;
352 struct sk_buff *frame;
356 /* flags used in struct ieee80211_if_managed.flags */
357 enum ieee80211_sta_flags {
358 IEEE80211_STA_BEACON_POLL = BIT(0),
359 IEEE80211_STA_CONNECTION_POLL = BIT(1),
360 IEEE80211_STA_CONTROL_PORT = BIT(2),
361 IEEE80211_STA_DISABLE_11N = BIT(4),
362 IEEE80211_STA_CSA_RECEIVED = BIT(5),
363 IEEE80211_STA_MFP_ENABLED = BIT(6),
364 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
365 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
366 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
367 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
368 IEEE80211_STA_DISABLE_VHT = BIT(11),
371 struct ieee80211_mgd_auth_data {
372 struct cfg80211_bss *bss;
373 unsigned long timeout;
375 u16 algorithm, expected_transaction;
377 u8 key[WLAN_KEY_LEN_WEP104];
385 struct ieee80211_mgd_assoc_data {
386 struct cfg80211_bss *bss;
387 const u8 *supp_rates;
389 unsigned long timeout;
393 u8 prev_bssid[ETH_ALEN];
394 u8 ssid[IEEE80211_MAX_SSID_LEN];
408 struct ieee80211_if_managed {
409 struct timer_list timer;
410 struct timer_list conn_mon_timer;
411 struct timer_list bcn_mon_timer;
412 struct timer_list chswitch_timer;
413 struct work_struct monitor_work;
414 struct work_struct chswitch_work;
415 struct work_struct beacon_connection_loss_work;
416 struct work_struct csa_connection_drop_work;
418 unsigned long beacon_timeout;
419 unsigned long probe_timeout;
420 int probe_send_count;
421 bool nullfunc_failed;
424 struct cfg80211_bss *associated;
425 struct ieee80211_mgd_auth_data *auth_data;
426 struct ieee80211_mgd_assoc_data *assoc_data;
432 unsigned long timers_running; /* used for quiesce/restart */
433 bool powersave; /* powersave requested for this iface */
434 bool broken_ap; /* AP is broken -- turn off powersave */
435 enum ieee80211_smps_mode req_smps, /* requested smps mode */
436 driver_smps_mode; /* smps mode request */
438 struct work_struct request_smps_work;
442 bool beacon_crc_valid;
446 IEEE80211_MFP_DISABLED,
447 IEEE80211_MFP_OPTIONAL,
448 IEEE80211_MFP_REQUIRED
449 } mfp; /* management frame protection */
452 * Bitmask of enabled u-apsd queues,
453 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
456 unsigned int uapsd_queues;
459 * Maximum number of buffered frames AP can deliver during a
460 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
461 * Needs a new association to take effect.
463 unsigned int uapsd_max_sp_len;
465 int wmm_last_param_set;
469 /* Signal strength from the last Beacon frame in the current BSS. */
470 int last_beacon_signal;
473 * Weighted average of the signal strength from Beacon frames in the
474 * current BSS. This is in units of 1/16 of the signal unit to maintain
475 * accuracy and to speed up calculations, i.e., the value need to be
476 * divided by 16 to get the actual value.
478 int ave_beacon_signal;
481 * Number of Beacon frames used in ave_beacon_signal. This can be used
482 * to avoid generating less reliable cqm events that would be based
483 * only on couple of received frames.
485 unsigned int count_beacon_signal;
488 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
489 * that triggered a cqm event. 0 indicates that no event has been
490 * generated for the current association.
492 int last_cqm_event_signal;
495 * State variables for keeping track of RSSI of the AP currently
496 * connected to and informing driver when RSSI has gone
497 * below/above a certain threshold.
499 int rssi_min_thold, rssi_max_thold;
500 int last_ave_beacon_signal;
502 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
503 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
506 struct ieee80211_if_ibss {
507 struct timer_list timer;
511 unsigned long last_scan_completed;
522 unsigned int auth_frame_registrations;
524 u8 bssid[ETH_ALEN] __aligned(2);
525 u8 ssid[IEEE80211_MAX_SSID_LEN];
528 struct ieee80211_channel *channel;
529 enum nl80211_channel_type channel_type;
531 unsigned long ibss_join_req;
532 /* probe response/beacon for IBSS */
533 struct sk_buff __rcu *presp;
536 spinlock_t incomplete_lock;
537 struct list_head incomplete_stations;
540 IEEE80211_IBSS_MLME_SEARCH,
541 IEEE80211_IBSS_MLME_JOINED,
546 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
548 * these declarations define the interface, which enables
549 * vendor-specific mesh synchronization
552 struct ieee802_11_elems;
553 struct ieee80211_mesh_sync_ops {
554 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
556 struct ieee80211_mgmt *mgmt,
557 struct ieee802_11_elems *elems,
558 struct ieee80211_rx_status *rx_status);
559 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata);
560 /* add other framework functions here */
563 struct ieee80211_if_mesh {
564 struct timer_list housekeeping_timer;
565 struct timer_list mesh_path_timer;
566 struct timer_list mesh_path_root_timer;
568 unsigned long timers_running;
570 unsigned long wrkq_flags;
572 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
574 /* Active Path Selection Protocol Identifier */
576 /* Active Path Selection Metric Identifier */
578 /* Congestion Control Mode Identifier */
580 /* Synchronization Protocol Identifier */
582 /* Authentication Protocol Identifier */
584 /* Local mesh Sequence Number */
586 /* Last used PREQ ID */
589 /* Timestamp of last SN update */
590 unsigned long last_sn_update;
591 /* Time when it's ok to send next PERR */
592 unsigned long next_perr;
593 /* Timestamp of last PREQ sent */
594 unsigned long last_preq;
595 struct mesh_rmc *rmc;
596 spinlock_t mesh_preq_queue_lock;
597 struct mesh_preq_queue preq_queue;
599 struct mesh_stats mshstats;
600 struct mesh_config mshcfg;
602 bool accepting_plinks;
607 IEEE80211_MESH_SEC_NONE = 0x0,
608 IEEE80211_MESH_SEC_AUTHED = 0x1,
609 IEEE80211_MESH_SEC_SECURED = 0x2,
611 /* Extensible Synchronization Framework */
612 struct ieee80211_mesh_sync_ops *sync_ops;
613 s64 sync_offset_clockdrift_max;
614 spinlock_t sync_offset_lock;
618 #ifdef CONFIG_MAC80211_MESH
619 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
620 do { (msh)->mshstats.name++; } while (0)
622 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
627 * enum ieee80211_sub_if_data_flags - virtual interface flags
629 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
630 * @IEEE80211_SDATA_PROMISC: interface is promisc
631 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
632 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
633 * associated stations and deliver multicast frames both
634 * back to wireless media and to the local net stack.
635 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
636 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
638 enum ieee80211_sub_if_data_flags {
639 IEEE80211_SDATA_ALLMULTI = BIT(0),
640 IEEE80211_SDATA_PROMISC = BIT(1),
641 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
642 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
643 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
644 IEEE80211_SDATA_IN_DRIVER = BIT(5),
648 * enum ieee80211_sdata_state_bits - virtual interface state bits
649 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
650 * mirrors netif_running() but is separate for interface type
651 * change handling while the interface is up
652 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
653 * mode, so queues are stopped
655 enum ieee80211_sdata_state_bits {
657 SDATA_STATE_OFFCHANNEL,
661 * enum ieee80211_chanctx_mode - channel context configuration mode
663 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
664 * multiple interfaces
665 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
666 * only by a single interface. This can be used for example for
667 * non-fixed channel IBSS.
669 enum ieee80211_chanctx_mode {
670 IEEE80211_CHANCTX_SHARED,
671 IEEE80211_CHANCTX_EXCLUSIVE
674 struct ieee80211_chanctx {
675 struct list_head list;
676 struct rcu_head rcu_head;
678 enum ieee80211_chanctx_mode mode;
681 struct ieee80211_chanctx_conf conf;
684 struct ieee80211_sub_if_data {
685 struct list_head list;
687 struct wireless_dev wdev;
690 struct list_head key_list;
692 /* count for keys needing tailroom space allocation */
693 int crypto_tx_tailroom_needed_cnt;
695 struct net_device *dev;
696 struct ieee80211_local *local;
702 int drop_unencrypted;
706 /* to detect idle changes */
709 /* Fragment table for host-based reassembly */
710 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
711 unsigned int fragment_next;
713 /* TID bitmap for NoAck policy */
716 /* bit field of ACM bits (BIT(802.1D tag)) */
719 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
720 struct ieee80211_key __rcu *default_unicast_key;
721 struct ieee80211_key __rcu *default_multicast_key;
722 struct ieee80211_key __rcu *default_mgmt_key;
725 __be16 control_port_protocol;
726 bool control_port_no_encrypt;
728 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
730 /* used to reconfigure hardware SM PS */
731 struct work_struct recalc_smps;
733 struct work_struct work;
734 struct sk_buff_head skb_queue;
736 bool arp_filter_state;
739 enum ieee80211_smps_mode smps_mode;
742 * AP this belongs to: self in AP mode and
743 * corresponding AP in VLAN mode, NULL for
744 * all others (might be needed later in IBSS)
746 struct ieee80211_if_ap *bss;
748 /* bitmap of allowed (non-MCS) rate indexes for rate control */
749 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
750 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
753 struct ieee80211_if_ap ap;
754 struct ieee80211_if_wds wds;
755 struct ieee80211_if_vlan vlan;
756 struct ieee80211_if_managed mgd;
757 struct ieee80211_if_ibss ibss;
758 struct ieee80211_if_mesh mesh;
762 #ifdef CONFIG_MAC80211_DEBUGFS
765 struct dentry *subdir_stations;
766 struct dentry *default_unicast_key;
767 struct dentry *default_multicast_key;
768 struct dentry *default_mgmt_key;
771 /* must be last, dynamically sized area in this! */
772 struct ieee80211_vif vif;
776 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
778 return container_of(p, struct ieee80211_sub_if_data, vif);
781 static inline enum ieee80211_band
782 ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
784 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
785 struct ieee80211_chanctx_conf *chanctx_conf;
788 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
789 if (!WARN_ON(!chanctx_conf))
790 band = chanctx_conf->channel->band;
796 enum sdata_queue_type {
797 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
798 IEEE80211_SDATA_QUEUE_AGG_START = 1,
799 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
803 IEEE80211_RX_MSG = 1,
804 IEEE80211_TX_STATUS_MSG = 2,
805 IEEE80211_EOSP_MSG = 3,
808 struct skb_eosp_msg_data {
809 u8 sta[ETH_ALEN], iface[ETH_ALEN];
812 enum queue_stop_reason {
813 IEEE80211_QUEUE_STOP_REASON_DRIVER,
814 IEEE80211_QUEUE_STOP_REASON_PS,
815 IEEE80211_QUEUE_STOP_REASON_CSA,
816 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
817 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
818 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
821 #ifdef CONFIG_MAC80211_LEDS
822 struct tpt_led_trigger {
823 struct led_trigger trig;
825 const struct ieee80211_tpt_blink *blink_table;
826 unsigned int blink_table_len;
827 struct timer_list timer;
828 unsigned long prev_traffic;
829 unsigned long tx_bytes, rx_bytes;
830 unsigned int active, want;
836 * mac80211 scan flags - currently active scan mode
838 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
839 * well be on the operating channel
840 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
841 * determine if we are on the operating channel or not
842 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
843 * channel. This should not interrupt normal traffic.
844 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
845 * that the scan completed.
846 * @SCAN_ABORTED: Set for our scan work function when the driver reported
847 * a scan complete for an aborted scan.
852 SCAN_ONCHANNEL_SCANNING,
858 * enum mac80211_scan_state - scan state machine states
860 * @SCAN_DECISION: Main entry point to the scan state machine, this state
861 * determines if we should keep on scanning or switch back to the
863 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
864 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
865 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
867 * @SCAN_RESUME: Resume the scan and scan the next channel
869 enum mac80211_scan_state {
877 struct ieee80211_local {
878 /* embed the driver visible part.
879 * don't cast (use the static inlines below), but we keep
880 * it first anyway so they become a no-op */
881 struct ieee80211_hw hw;
883 const struct ieee80211_ops *ops;
886 * private workqueue to mac80211. mac80211 makes this accessible
887 * via ieee80211_queue_work()
889 struct workqueue_struct *workqueue;
891 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
892 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
893 spinlock_t queue_stop_reason_lock;
896 int monitors, cooked_mntrs;
897 /* number of interfaces with corresponding FIF_ flags */
898 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
901 unsigned int filter_flags; /* FIF_* */
903 bool wiphy_ciphers_allocated;
907 /* protects the aggregated multicast list and filter calls */
908 spinlock_t filter_lock;
910 /* used for uploading changed mc list */
911 struct work_struct reconfig_filter;
913 /* aggregated multicast list */
914 struct netdev_hw_addr_list mc_list;
916 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
919 * suspended is true if we finished all the suspend _and_ we have
920 * not yet come up from resume. This is to be used by mac80211
921 * to ensure driver sanity during suspend and mac80211's own
922 * sanity. It can eventually be used for WoW as well.
927 * Resuming is true while suspended, but when we're reprogramming the
928 * hardware -- at that time it's allowed to use ieee80211_queue_work()
929 * again even though some other parts of the stack are still suspended
930 * and we still drop received frames to avoid waking the stack.
935 * quiescing is true during the suspend process _only_ to
936 * ease timer cancelling etc.
940 /* device is started */
943 /* device is during a HW reconfig */
946 /* wowlan is enabled -- don't reconfig on resume */
949 /* number of RX chains the hardware has */
952 int tx_headroom; /* required headroom for hardware/radiotap */
954 /* Tasklet and skb queue to process calls from IRQ mode. All frames
955 * added to skb_queue will be processed, but frames in
956 * skb_queue_unreliable may be dropped if the total length of these
957 * queues increases over the limit. */
958 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
959 struct tasklet_struct tasklet;
960 struct sk_buff_head skb_queue;
961 struct sk_buff_head skb_queue_unreliable;
964 * Internal FIFO queue which is shared between multiple rx path
965 * stages. Its main task is to provide a serialization mechanism,
966 * so all rx handlers can enjoy having exclusive access to their
967 * private data structures.
969 struct sk_buff_head rx_skb_queue;
970 bool running_rx_handler; /* protected by rx_skb_queue.lock */
974 * The mutex only protects the list, hash table and
975 * counter, reads are done with RCU.
977 struct mutex sta_mtx;
979 unsigned long num_sta;
980 struct list_head sta_list;
981 struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
982 struct timer_list sta_cleanup;
985 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
986 struct tasklet_struct tx_pending_tasklet;
988 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
990 /* number of interfaces with corresponding IFF_ flags */
991 atomic_t iff_allmultis, iff_promiscs;
993 struct rate_control_ref *rate_ctrl;
995 struct crypto_cipher *wep_tx_tfm;
996 struct crypto_cipher *wep_rx_tfm;
1000 struct list_head interfaces;
1001 struct mutex iflist_mtx;
1004 * Key mutex, protects sdata's key_list and sta_info's
1005 * key pointers (write access, they're RCU.)
1007 struct mutex key_mtx;
1009 /* mutex for scan and work locking */
1012 /* Scanning and BSS list */
1013 unsigned long scanning;
1014 struct cfg80211_ssid scan_ssid;
1015 struct cfg80211_scan_request *int_scan_req;
1016 struct cfg80211_scan_request *scan_req, *hw_scan_req;
1017 struct ieee80211_channel *scan_channel;
1018 enum ieee80211_band hw_scan_band;
1019 int scan_channel_idx;
1022 struct work_struct sched_scan_stopped_work;
1023 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1025 unsigned long leave_oper_channel_time;
1026 enum mac80211_scan_state next_scan_state;
1027 struct delayed_work scan_work;
1028 struct ieee80211_sub_if_data __rcu *scan_sdata;
1029 struct ieee80211_channel *csa_channel;
1030 /* For backward compatibility only -- do not use */
1031 struct ieee80211_channel *_oper_channel;
1032 enum nl80211_channel_type _oper_channel_type;
1034 /* Temporary remain-on-channel for off-channel operations */
1035 struct ieee80211_channel *tmp_channel;
1036 enum nl80211_channel_type tmp_channel_type;
1038 /* channel contexts */
1039 struct list_head chanctx_list;
1040 struct mutex chanctx_mtx;
1043 /* dot11CountersTable */
1044 u32 dot11TransmittedFragmentCount;
1045 u32 dot11MulticastTransmittedFrameCount;
1046 u32 dot11FailedCount;
1047 u32 dot11RetryCount;
1048 u32 dot11MultipleRetryCount;
1049 u32 dot11FrameDuplicateCount;
1050 u32 dot11ReceivedFragmentCount;
1051 u32 dot11MulticastReceivedFrameCount;
1052 u32 dot11TransmittedFrameCount;
1054 #ifdef CONFIG_MAC80211_LEDS
1055 int tx_led_counter, rx_led_counter;
1056 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
1057 struct tpt_led_trigger *tpt_led_trigger;
1058 char tx_led_name[32], rx_led_name[32],
1059 assoc_led_name[32], radio_led_name[32];
1062 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1063 /* TX/RX handler statistics */
1064 unsigned int tx_handlers_drop;
1065 unsigned int tx_handlers_queued;
1066 unsigned int tx_handlers_drop_unencrypted;
1067 unsigned int tx_handlers_drop_fragment;
1068 unsigned int tx_handlers_drop_wep;
1069 unsigned int tx_handlers_drop_not_assoc;
1070 unsigned int tx_handlers_drop_unauth_port;
1071 unsigned int rx_handlers_drop;
1072 unsigned int rx_handlers_queued;
1073 unsigned int rx_handlers_drop_nullfunc;
1074 unsigned int rx_handlers_drop_defrag;
1075 unsigned int rx_handlers_drop_short;
1076 unsigned int tx_expand_skb_head;
1077 unsigned int tx_expand_skb_head_cloned;
1078 unsigned int rx_expand_skb_head;
1079 unsigned int rx_expand_skb_head2;
1080 unsigned int rx_handlers_fragments;
1081 unsigned int tx_status_drop;
1082 #define I802_DEBUG_INC(c) (c)++
1083 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1084 #define I802_DEBUG_INC(c) do { } while (0)
1085 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1088 int total_ps_buffered; /* total number of all buffered unicast and
1089 * multicast packets for power saving stations
1093 bool offchannel_ps_enabled;
1095 * PS can only be enabled when we have exactly one managed
1096 * interface (and monitors) in PS, this then points there.
1098 struct ieee80211_sub_if_data *ps_sdata;
1099 struct work_struct dynamic_ps_enable_work;
1100 struct work_struct dynamic_ps_disable_work;
1101 struct timer_list dynamic_ps_timer;
1102 struct notifier_block network_latency_notifier;
1103 struct notifier_block ifa_notifier;
1106 * The dynamic ps timeout configured from user space via WEXT -
1107 * this will override whatever chosen by mac80211 internally.
1109 int dynamic_ps_forced_timeout;
1110 int dynamic_ps_user_timeout;
1111 bool disable_dynamic_ps;
1113 int user_power_level; /* in dBm */
1114 int ap_power_level; /* in dBm */
1116 enum ieee80211_smps_mode smps_mode;
1118 struct work_struct restart_work;
1120 #ifdef CONFIG_MAC80211_DEBUGFS
1121 struct local_debugfsdentries {
1122 struct dentry *rcdir;
1123 struct dentry *keys;
1128 * Remain-on-channel support
1130 struct list_head roc_list;
1131 struct work_struct hw_roc_start, hw_roc_done;
1132 unsigned long hw_roc_start_time;
1134 struct idr ack_status_frames;
1135 spinlock_t ack_status_lock;
1137 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1139 /* dummy netdev for use w/ NAPI */
1140 struct net_device napi_dev;
1142 struct napi_struct napi;
1144 /* virtual monitor interface */
1145 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1146 struct ieee80211_channel *monitor_channel;
1147 enum nl80211_channel_type monitor_channel_type;
1150 static inline struct ieee80211_sub_if_data *
1151 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1153 return netdev_priv(dev);
1156 static inline struct ieee80211_sub_if_data *
1157 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1159 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1162 /* this struct represents 802.11n's RA/TID combination */
1163 struct ieee80211_ra_tid {
1168 /* Parsed Information Elements */
1169 struct ieee802_11_elems {
1173 /* pointers to IEs */
1179 struct ieee80211_tim_ie *tim;
1188 struct ieee80211_ht_cap *ht_cap_elem;
1189 struct ieee80211_ht_operation *ht_operation;
1190 struct ieee80211_meshconf_ie *mesh_config;
1196 struct ieee80211_rann_ie *rann;
1197 struct ieee80211_channel_sw_ie *ch_switch_ie;
1199 u8 *pwr_constr_elem;
1200 u8 *quiet_elem; /* first quite element */
1203 /* length of them, respectively */
1215 u8 ext_supp_rates_len;
1223 u8 country_elem_len;
1225 u8 num_of_quiet_elem; /* can be more the one */
1228 /* whether a parse error occurred while retrieving these elements */
1232 static inline struct ieee80211_local *hw_to_local(
1233 struct ieee80211_hw *hw)
1235 return container_of(hw, struct ieee80211_local, hw);
1239 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1241 return ether_addr_equal(raddr, addr) ||
1242 is_broadcast_ether_addr(raddr);
1246 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1247 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1248 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1250 void ieee80211_configure_filter(struct ieee80211_local *local);
1251 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1254 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1255 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1256 struct cfg80211_auth_request *req);
1257 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1258 struct cfg80211_assoc_request *req);
1259 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1260 struct cfg80211_deauth_request *req);
1261 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1262 struct cfg80211_disassoc_request *req);
1263 void ieee80211_send_pspoll(struct ieee80211_local *local,
1264 struct ieee80211_sub_if_data *sdata);
1265 void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
1266 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1267 int ieee80211_max_network_latency(struct notifier_block *nb,
1268 unsigned long data, void *dummy);
1269 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1270 void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
1271 struct ieee80211_channel_sw_ie *sw_elem,
1272 struct ieee80211_bss *bss,
1274 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
1275 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1276 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1277 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1278 struct sk_buff *skb);
1279 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1280 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1281 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1284 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1285 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1286 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1287 const u8 *bssid, const u8 *addr, u32 supp_rates);
1288 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1289 struct cfg80211_ibss_params *params);
1290 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1291 void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
1292 void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
1293 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1294 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1295 struct sk_buff *skb);
1298 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1299 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1300 struct sk_buff *skb);
1302 /* scan/BSS handling */
1303 void ieee80211_scan_work(struct work_struct *work);
1304 int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
1305 const u8 *ssid, u8 ssid_len,
1306 struct ieee80211_channel *chan);
1307 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1308 struct cfg80211_scan_request *req);
1309 void ieee80211_scan_cancel(struct ieee80211_local *local);
1310 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1311 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1313 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1314 struct ieee80211_bss *
1315 ieee80211_bss_info_update(struct ieee80211_local *local,
1316 struct ieee80211_rx_status *rx_status,
1317 struct ieee80211_mgmt *mgmt,
1319 struct ieee802_11_elems *elems,
1320 struct ieee80211_channel *channel,
1322 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1323 struct ieee80211_bss *bss);
1325 /* scheduled scan handling */
1326 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1327 struct cfg80211_sched_scan_request *req);
1328 int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
1329 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1331 /* off-channel helpers */
1332 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local,
1333 bool offchannel_ps_enable);
1334 void ieee80211_offchannel_return(struct ieee80211_local *local,
1335 bool offchannel_ps_disable);
1336 void ieee80211_roc_setup(struct ieee80211_local *local);
1337 void ieee80211_start_next_roc(struct ieee80211_local *local);
1338 void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata);
1339 void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc);
1340 void ieee80211_sw_roc_work(struct work_struct *work);
1341 void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
1343 /* interface handling */
1344 int ieee80211_iface_init(void);
1345 void ieee80211_iface_exit(void);
1346 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1347 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1348 struct vif_params *params);
1349 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1350 enum nl80211_iftype type);
1351 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1352 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1353 void ieee80211_recalc_idle(struct ieee80211_local *local);
1354 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1356 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1357 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
1359 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1361 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1365 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1366 void ieee80211_tx_pending(unsigned long data);
1367 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1368 struct net_device *dev);
1369 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1370 struct net_device *dev);
1373 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1374 struct ieee80211_sta_ht_cap *ht_cap);
1375 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1376 struct ieee80211_supported_band *sband,
1377 struct ieee80211_ht_cap *ht_cap_ie,
1378 struct ieee80211_sta_ht_cap *ht_cap);
1379 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1380 const u8 *da, u16 tid,
1381 u16 initiator, u16 reason_code);
1382 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1383 enum ieee80211_smps_mode smps, const u8 *da,
1385 void ieee80211_request_smps_work(struct work_struct *work);
1387 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1388 u16 initiator, u16 reason, bool stop);
1389 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1390 u16 initiator, u16 reason, bool stop);
1391 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, bool tx);
1392 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1393 struct sta_info *sta,
1394 struct ieee80211_mgmt *mgmt, size_t len);
1395 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1396 struct sta_info *sta,
1397 struct ieee80211_mgmt *mgmt,
1399 void ieee80211_process_addba_request(struct ieee80211_local *local,
1400 struct sta_info *sta,
1401 struct ieee80211_mgmt *mgmt,
1404 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1405 enum ieee80211_back_parties initiator,
1407 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1408 enum ieee80211_back_parties initiator,
1410 void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1411 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
1412 void ieee80211_ba_session_work(struct work_struct *work);
1413 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1414 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1416 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1418 /* Spectrum management */
1419 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1420 struct ieee80211_mgmt *mgmt,
1423 /* Suspend/resume and hw reconfiguration */
1424 int ieee80211_reconfig(struct ieee80211_local *local);
1425 void ieee80211_stop_device(struct ieee80211_local *local);
1427 int __ieee80211_suspend(struct ieee80211_hw *hw,
1428 struct cfg80211_wowlan *wowlan);
1430 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1432 struct ieee80211_local *local = hw_to_local(hw);
1434 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
1435 "%s: resume with hardware scan still in progress\n",
1436 wiphy_name(hw->wiphy));
1438 return ieee80211_reconfig(hw_to_local(hw));
1441 /* utility functions/constants */
1442 extern void *mac80211_wiphy_privid; /* for wiphy privid */
1443 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
1444 enum nl80211_iftype type);
1445 int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
1446 int rate, int erp, int short_preamble);
1447 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
1448 struct ieee80211_hdr *hdr, const u8 *tsc,
1450 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1452 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
1453 enum ieee80211_band band);
1455 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1456 struct sk_buff *skb, int tid,
1457 enum ieee80211_band band);
1460 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1461 struct sk_buff *skb, int tid,
1462 enum ieee80211_band band)
1465 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1469 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1470 struct sk_buff *skb, int tid)
1472 struct ieee80211_chanctx_conf *chanctx_conf;
1475 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1476 if (WARN_ON(!chanctx_conf)) {
1482 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
1483 chanctx_conf->channel->band);
1487 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
1488 struct sk_buff *skb)
1490 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1491 ieee80211_tx_skb_tid(sdata, skb, 7);
1494 void ieee802_11_parse_elems(u8 *start, size_t len,
1495 struct ieee802_11_elems *elems);
1496 u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
1497 struct ieee802_11_elems *elems,
1498 u64 filter, u32 crc);
1499 u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
1500 enum ieee80211_band band);
1502 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1503 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1504 void ieee80211_dynamic_ps_timer(unsigned long data);
1505 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1506 struct ieee80211_sub_if_data *sdata,
1508 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1509 struct ieee80211_hdr *hdr);
1510 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
1511 struct ieee80211_hdr *hdr, bool ack);
1513 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1514 enum queue_stop_reason reason);
1515 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1516 enum queue_stop_reason reason);
1517 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1518 enum queue_stop_reason reason);
1519 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1520 enum queue_stop_reason reason);
1521 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
1522 void ieee80211_add_pending_skb(struct ieee80211_local *local,
1523 struct sk_buff *skb);
1524 void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
1525 struct sk_buff_head *skbs,
1526 void (*fn)(void *data), void *data);
1527 static inline void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1528 struct sk_buff_head *skbs)
1530 ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL);
1533 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1534 u16 transaction, u16 auth_alg,
1535 u8 *extra, size_t extra_len, const u8 *bssid,
1536 const u8 *da, const u8 *key, u8 key_len, u8 key_idx);
1537 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
1538 const u8 *bssid, u16 stype, u16 reason,
1539 bool send_frame, u8 *frame_buf);
1540 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1541 const u8 *ie, size_t ie_len,
1542 enum ieee80211_band band, u32 rate_mask,
1544 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
1545 u8 *dst, u32 ratemask,
1546 struct ieee80211_channel *chan,
1547 const u8 *ssid, size_t ssid_len,
1548 const u8 *ie, size_t ie_len,
1550 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
1551 const u8 *ssid, size_t ssid_len,
1552 const u8 *ie, size_t ie_len,
1553 u32 ratemask, bool directed, bool no_cck,
1554 struct ieee80211_channel *channel, bool scan);
1556 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1557 const size_t supp_rates_len,
1558 const u8 *supp_rates);
1559 u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1560 struct ieee802_11_elems *elems,
1561 enum ieee80211_band band, u32 *basic_rates);
1562 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1563 enum ieee80211_smps_mode smps_mode);
1564 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
1566 size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
1567 const u8 *ids, int n_ids, size_t offset);
1568 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
1569 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1571 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1572 struct ieee80211_channel *channel,
1573 enum nl80211_channel_type channel_type,
1575 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1577 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
1578 struct sk_buff *skb, bool need_basic,
1579 enum ieee80211_band band);
1580 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
1581 struct sk_buff *skb, bool need_basic,
1582 enum ieee80211_band band);
1584 /* channel management */
1585 enum nl80211_channel_type
1586 ieee80211_ht_oper_to_channel_type(struct ieee80211_ht_operation *ht_oper);
1589 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
1590 struct ieee80211_channel *channel,
1591 enum nl80211_channel_type channel_type,
1592 enum ieee80211_chanctx_mode mode);
1593 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
1595 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
1596 struct ieee80211_chanctx *chanctx);
1598 #ifdef CONFIG_MAC80211_NOINLINE
1599 #define debug_noinline noinline
1601 #define debug_noinline
1604 #endif /* IEEE80211_I_H */