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 ap_smps, /* smps mode AP thinks we're in */
437 driver_smps_mode; /* smps mode request */
439 struct work_struct request_smps_work;
443 bool beacon_crc_valid;
447 IEEE80211_MFP_DISABLED,
448 IEEE80211_MFP_OPTIONAL,
449 IEEE80211_MFP_REQUIRED
450 } mfp; /* management frame protection */
453 * Bitmask of enabled u-apsd queues,
454 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
457 unsigned int uapsd_queues;
460 * Maximum number of buffered frames AP can deliver during a
461 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
462 * Needs a new association to take effect.
464 unsigned int uapsd_max_sp_len;
466 int wmm_last_param_set;
470 /* Signal strength from the last Beacon frame in the current BSS. */
471 int last_beacon_signal;
474 * Weighted average of the signal strength from Beacon frames in the
475 * current BSS. This is in units of 1/16 of the signal unit to maintain
476 * accuracy and to speed up calculations, i.e., the value need to be
477 * divided by 16 to get the actual value.
479 int ave_beacon_signal;
482 * Number of Beacon frames used in ave_beacon_signal. This can be used
483 * to avoid generating less reliable cqm events that would be based
484 * only on couple of received frames.
486 unsigned int count_beacon_signal;
489 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
490 * that triggered a cqm event. 0 indicates that no event has been
491 * generated for the current association.
493 int last_cqm_event_signal;
496 * State variables for keeping track of RSSI of the AP currently
497 * connected to and informing driver when RSSI has gone
498 * below/above a certain threshold.
500 int rssi_min_thold, rssi_max_thold;
501 int last_ave_beacon_signal;
503 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
504 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
507 struct ieee80211_if_ibss {
508 struct timer_list timer;
512 unsigned long last_scan_completed;
523 unsigned int auth_frame_registrations;
525 u8 bssid[ETH_ALEN] __aligned(2);
526 u8 ssid[IEEE80211_MAX_SSID_LEN];
529 struct ieee80211_channel *channel;
530 enum nl80211_channel_type channel_type;
532 unsigned long ibss_join_req;
533 /* probe response/beacon for IBSS */
534 struct sk_buff __rcu *presp;
537 spinlock_t incomplete_lock;
538 struct list_head incomplete_stations;
541 IEEE80211_IBSS_MLME_SEARCH,
542 IEEE80211_IBSS_MLME_JOINED,
547 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
549 * these declarations define the interface, which enables
550 * vendor-specific mesh synchronization
553 struct ieee802_11_elems;
554 struct ieee80211_mesh_sync_ops {
555 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
557 struct ieee80211_mgmt *mgmt,
558 struct ieee802_11_elems *elems,
559 struct ieee80211_rx_status *rx_status);
560 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata);
561 /* add other framework functions here */
564 struct ieee80211_if_mesh {
565 struct timer_list housekeeping_timer;
566 struct timer_list mesh_path_timer;
567 struct timer_list mesh_path_root_timer;
569 unsigned long timers_running;
571 unsigned long wrkq_flags;
573 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
575 /* Active Path Selection Protocol Identifier */
577 /* Active Path Selection Metric Identifier */
579 /* Congestion Control Mode Identifier */
581 /* Synchronization Protocol Identifier */
583 /* Authentication Protocol Identifier */
585 /* Local mesh Sequence Number */
587 /* Last used PREQ ID */
590 /* Timestamp of last SN update */
591 unsigned long last_sn_update;
592 /* Time when it's ok to send next PERR */
593 unsigned long next_perr;
594 /* Timestamp of last PREQ sent */
595 unsigned long last_preq;
596 struct mesh_rmc *rmc;
597 spinlock_t mesh_preq_queue_lock;
598 struct mesh_preq_queue preq_queue;
600 struct mesh_stats mshstats;
601 struct mesh_config mshcfg;
603 bool accepting_plinks;
608 IEEE80211_MESH_SEC_NONE = 0x0,
609 IEEE80211_MESH_SEC_AUTHED = 0x1,
610 IEEE80211_MESH_SEC_SECURED = 0x2,
612 /* Extensible Synchronization Framework */
613 struct ieee80211_mesh_sync_ops *sync_ops;
614 s64 sync_offset_clockdrift_max;
615 spinlock_t sync_offset_lock;
619 #ifdef CONFIG_MAC80211_MESH
620 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
621 do { (msh)->mshstats.name++; } while (0)
623 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
628 * enum ieee80211_sub_if_data_flags - virtual interface flags
630 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
631 * @IEEE80211_SDATA_PROMISC: interface is promisc
632 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
633 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
634 * associated stations and deliver multicast frames both
635 * back to wireless media and to the local net stack.
636 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
637 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
639 enum ieee80211_sub_if_data_flags {
640 IEEE80211_SDATA_ALLMULTI = BIT(0),
641 IEEE80211_SDATA_PROMISC = BIT(1),
642 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
643 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
644 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
645 IEEE80211_SDATA_IN_DRIVER = BIT(5),
649 * enum ieee80211_sdata_state_bits - virtual interface state bits
650 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
651 * mirrors netif_running() but is separate for interface type
652 * change handling while the interface is up
653 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
654 * mode, so queues are stopped
656 enum ieee80211_sdata_state_bits {
658 SDATA_STATE_OFFCHANNEL,
661 struct ieee80211_sub_if_data {
662 struct list_head list;
664 struct wireless_dev wdev;
667 struct list_head key_list;
669 /* count for keys needing tailroom space allocation */
670 int crypto_tx_tailroom_needed_cnt;
672 struct net_device *dev;
673 struct ieee80211_local *local;
679 int drop_unencrypted;
683 /* to detect idle changes */
686 /* Fragment table for host-based reassembly */
687 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
688 unsigned int fragment_next;
690 /* TID bitmap for NoAck policy */
693 /* bit field of ACM bits (BIT(802.1D tag)) */
696 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
697 struct ieee80211_key __rcu *default_unicast_key;
698 struct ieee80211_key __rcu *default_multicast_key;
699 struct ieee80211_key __rcu *default_mgmt_key;
702 __be16 control_port_protocol;
703 bool control_port_no_encrypt;
705 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
707 struct work_struct work;
708 struct sk_buff_head skb_queue;
710 bool arp_filter_state;
713 * AP this belongs to: self in AP mode and
714 * corresponding AP in VLAN mode, NULL for
715 * all others (might be needed later in IBSS)
717 struct ieee80211_if_ap *bss;
719 /* bitmap of allowed (non-MCS) rate indexes for rate control */
720 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
721 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
724 struct ieee80211_if_ap ap;
725 struct ieee80211_if_wds wds;
726 struct ieee80211_if_vlan vlan;
727 struct ieee80211_if_managed mgd;
728 struct ieee80211_if_ibss ibss;
729 struct ieee80211_if_mesh mesh;
733 #ifdef CONFIG_MAC80211_DEBUGFS
736 struct dentry *subdir_stations;
737 struct dentry *default_unicast_key;
738 struct dentry *default_multicast_key;
739 struct dentry *default_mgmt_key;
742 /* must be last, dynamically sized area in this! */
743 struct ieee80211_vif vif;
747 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
749 return container_of(p, struct ieee80211_sub_if_data, vif);
752 enum sdata_queue_type {
753 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
754 IEEE80211_SDATA_QUEUE_AGG_START = 1,
755 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
759 IEEE80211_RX_MSG = 1,
760 IEEE80211_TX_STATUS_MSG = 2,
761 IEEE80211_EOSP_MSG = 3,
764 struct skb_eosp_msg_data {
765 u8 sta[ETH_ALEN], iface[ETH_ALEN];
768 enum queue_stop_reason {
769 IEEE80211_QUEUE_STOP_REASON_DRIVER,
770 IEEE80211_QUEUE_STOP_REASON_PS,
771 IEEE80211_QUEUE_STOP_REASON_CSA,
772 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
773 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
774 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
777 #ifdef CONFIG_MAC80211_LEDS
778 struct tpt_led_trigger {
779 struct led_trigger trig;
781 const struct ieee80211_tpt_blink *blink_table;
782 unsigned int blink_table_len;
783 struct timer_list timer;
784 unsigned long prev_traffic;
785 unsigned long tx_bytes, rx_bytes;
786 unsigned int active, want;
792 * mac80211 scan flags - currently active scan mode
794 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
795 * well be on the operating channel
796 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
797 * determine if we are on the operating channel or not
798 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
799 * channel. This should not interrupt normal traffic.
800 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
801 * that the scan completed.
802 * @SCAN_ABORTED: Set for our scan work function when the driver reported
803 * a scan complete for an aborted scan.
808 SCAN_ONCHANNEL_SCANNING,
814 * enum mac80211_scan_state - scan state machine states
816 * @SCAN_DECISION: Main entry point to the scan state machine, this state
817 * determines if we should keep on scanning or switch back to the
819 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
820 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
821 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
823 * @SCAN_RESUME: Resume the scan and scan the next channel
825 enum mac80211_scan_state {
833 struct ieee80211_local {
834 /* embed the driver visible part.
835 * don't cast (use the static inlines below), but we keep
836 * it first anyway so they become a no-op */
837 struct ieee80211_hw hw;
839 const struct ieee80211_ops *ops;
842 * private workqueue to mac80211. mac80211 makes this accessible
843 * via ieee80211_queue_work()
845 struct workqueue_struct *workqueue;
847 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
848 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
849 spinlock_t queue_stop_reason_lock;
852 int monitors, cooked_mntrs;
853 /* number of interfaces with corresponding FIF_ flags */
854 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
857 unsigned int filter_flags; /* FIF_* */
859 bool wiphy_ciphers_allocated;
861 /* protects the aggregated multicast list and filter calls */
862 spinlock_t filter_lock;
864 /* used for uploading changed mc list */
865 struct work_struct reconfig_filter;
867 /* used to reconfigure hardware SM PS */
868 struct work_struct recalc_smps;
870 /* aggregated multicast list */
871 struct netdev_hw_addr_list mc_list;
873 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
876 * suspended is true if we finished all the suspend _and_ we have
877 * not yet come up from resume. This is to be used by mac80211
878 * to ensure driver sanity during suspend and mac80211's own
879 * sanity. It can eventually be used for WoW as well.
884 * Resuming is true while suspended, but when we're reprogramming the
885 * hardware -- at that time it's allowed to use ieee80211_queue_work()
886 * again even though some other parts of the stack are still suspended
887 * and we still drop received frames to avoid waking the stack.
892 * quiescing is true during the suspend process _only_ to
893 * ease timer cancelling etc.
897 /* device is started */
900 /* device is during a HW reconfig */
903 /* wowlan is enabled -- don't reconfig on resume */
906 int tx_headroom; /* required headroom for hardware/radiotap */
908 /* Tasklet and skb queue to process calls from IRQ mode. All frames
909 * added to skb_queue will be processed, but frames in
910 * skb_queue_unreliable may be dropped if the total length of these
911 * queues increases over the limit. */
912 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
913 struct tasklet_struct tasklet;
914 struct sk_buff_head skb_queue;
915 struct sk_buff_head skb_queue_unreliable;
918 * Internal FIFO queue which is shared between multiple rx path
919 * stages. Its main task is to provide a serialization mechanism,
920 * so all rx handlers can enjoy having exclusive access to their
921 * private data structures.
923 struct sk_buff_head rx_skb_queue;
924 bool running_rx_handler; /* protected by rx_skb_queue.lock */
928 * The mutex only protects the list, hash table and
929 * counter, reads are done with RCU.
931 struct mutex sta_mtx;
933 unsigned long num_sta;
934 struct list_head sta_list;
935 struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
936 struct timer_list sta_cleanup;
939 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
940 struct tasklet_struct tx_pending_tasklet;
942 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
944 /* number of interfaces with corresponding IFF_ flags */
945 atomic_t iff_allmultis, iff_promiscs;
947 struct rate_control_ref *rate_ctrl;
949 struct crypto_cipher *wep_tx_tfm;
950 struct crypto_cipher *wep_rx_tfm;
954 struct list_head interfaces;
955 struct mutex iflist_mtx;
958 * Key mutex, protects sdata's key_list and sta_info's
959 * key pointers (write access, they're RCU.)
961 struct mutex key_mtx;
963 /* mutex for scan and work locking */
966 /* Scanning and BSS list */
967 unsigned long scanning;
968 struct cfg80211_ssid scan_ssid;
969 struct cfg80211_scan_request *int_scan_req;
970 struct cfg80211_scan_request *scan_req, *hw_scan_req;
971 struct ieee80211_channel *scan_channel;
972 enum ieee80211_band hw_scan_band;
973 int scan_channel_idx;
976 struct work_struct sched_scan_stopped_work;
977 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
979 unsigned long leave_oper_channel_time;
980 enum mac80211_scan_state next_scan_state;
981 struct delayed_work scan_work;
982 struct ieee80211_sub_if_data __rcu *scan_sdata;
983 enum nl80211_channel_type _oper_channel_type;
984 struct ieee80211_channel *oper_channel, *csa_channel;
986 /* Temporary remain-on-channel for off-channel operations */
987 struct ieee80211_channel *tmp_channel;
988 enum nl80211_channel_type tmp_channel_type;
991 /* dot11CountersTable */
992 u32 dot11TransmittedFragmentCount;
993 u32 dot11MulticastTransmittedFrameCount;
994 u32 dot11FailedCount;
996 u32 dot11MultipleRetryCount;
997 u32 dot11FrameDuplicateCount;
998 u32 dot11ReceivedFragmentCount;
999 u32 dot11MulticastReceivedFrameCount;
1000 u32 dot11TransmittedFrameCount;
1002 #ifdef CONFIG_MAC80211_LEDS
1003 int tx_led_counter, rx_led_counter;
1004 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
1005 struct tpt_led_trigger *tpt_led_trigger;
1006 char tx_led_name[32], rx_led_name[32],
1007 assoc_led_name[32], radio_led_name[32];
1010 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1011 /* TX/RX handler statistics */
1012 unsigned int tx_handlers_drop;
1013 unsigned int tx_handlers_queued;
1014 unsigned int tx_handlers_drop_unencrypted;
1015 unsigned int tx_handlers_drop_fragment;
1016 unsigned int tx_handlers_drop_wep;
1017 unsigned int tx_handlers_drop_not_assoc;
1018 unsigned int tx_handlers_drop_unauth_port;
1019 unsigned int rx_handlers_drop;
1020 unsigned int rx_handlers_queued;
1021 unsigned int rx_handlers_drop_nullfunc;
1022 unsigned int rx_handlers_drop_defrag;
1023 unsigned int rx_handlers_drop_short;
1024 unsigned int tx_expand_skb_head;
1025 unsigned int tx_expand_skb_head_cloned;
1026 unsigned int rx_expand_skb_head;
1027 unsigned int rx_expand_skb_head2;
1028 unsigned int rx_handlers_fragments;
1029 unsigned int tx_status_drop;
1030 #define I802_DEBUG_INC(c) (c)++
1031 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1032 #define I802_DEBUG_INC(c) do { } while (0)
1033 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1036 int total_ps_buffered; /* total number of all buffered unicast and
1037 * multicast packets for power saving stations
1041 bool offchannel_ps_enabled;
1043 * PS can only be enabled when we have exactly one managed
1044 * interface (and monitors) in PS, this then points there.
1046 struct ieee80211_sub_if_data *ps_sdata;
1047 struct work_struct dynamic_ps_enable_work;
1048 struct work_struct dynamic_ps_disable_work;
1049 struct timer_list dynamic_ps_timer;
1050 struct notifier_block network_latency_notifier;
1051 struct notifier_block ifa_notifier;
1054 * The dynamic ps timeout configured from user space via WEXT -
1055 * this will override whatever chosen by mac80211 internally.
1057 int dynamic_ps_forced_timeout;
1058 int dynamic_ps_user_timeout;
1059 bool disable_dynamic_ps;
1061 int user_power_level; /* in dBm */
1062 int ap_power_level; /* in dBm */
1064 enum ieee80211_smps_mode smps_mode;
1066 struct work_struct restart_work;
1068 #ifdef CONFIG_MAC80211_DEBUGFS
1069 struct local_debugfsdentries {
1070 struct dentry *rcdir;
1071 struct dentry *keys;
1076 * Remain-on-channel support
1078 struct list_head roc_list;
1079 struct work_struct hw_roc_start, hw_roc_done;
1080 unsigned long hw_roc_start_time;
1082 struct idr ack_status_frames;
1083 spinlock_t ack_status_lock;
1085 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1087 /* dummy netdev for use w/ NAPI */
1088 struct net_device napi_dev;
1090 struct napi_struct napi;
1092 /* virtual monitor interface */
1093 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1096 static inline struct ieee80211_sub_if_data *
1097 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1099 return netdev_priv(dev);
1102 static inline struct ieee80211_sub_if_data *
1103 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1105 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1108 /* this struct represents 802.11n's RA/TID combination */
1109 struct ieee80211_ra_tid {
1114 /* Parsed Information Elements */
1115 struct ieee802_11_elems {
1119 /* pointers to IEs */
1125 struct ieee80211_tim_ie *tim;
1134 struct ieee80211_ht_cap *ht_cap_elem;
1135 struct ieee80211_ht_operation *ht_operation;
1136 struct ieee80211_meshconf_ie *mesh_config;
1142 struct ieee80211_rann_ie *rann;
1143 struct ieee80211_channel_sw_ie *ch_switch_ie;
1145 u8 *pwr_constr_elem;
1146 u8 *quiet_elem; /* first quite element */
1149 /* length of them, respectively */
1161 u8 ext_supp_rates_len;
1169 u8 country_elem_len;
1171 u8 num_of_quiet_elem; /* can be more the one */
1174 /* whether a parse error occurred while retrieving these elements */
1178 static inline struct ieee80211_local *hw_to_local(
1179 struct ieee80211_hw *hw)
1181 return container_of(hw, struct ieee80211_local, hw);
1185 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1187 return ether_addr_equal(raddr, addr) ||
1188 is_broadcast_ether_addr(raddr);
1192 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1193 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1194 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1196 void ieee80211_configure_filter(struct ieee80211_local *local);
1197 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1200 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1201 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1202 struct cfg80211_auth_request *req);
1203 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1204 struct cfg80211_assoc_request *req);
1205 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1206 struct cfg80211_deauth_request *req);
1207 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1208 struct cfg80211_disassoc_request *req);
1209 void ieee80211_send_pspoll(struct ieee80211_local *local,
1210 struct ieee80211_sub_if_data *sdata);
1211 void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
1212 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1213 int ieee80211_max_network_latency(struct notifier_block *nb,
1214 unsigned long data, void *dummy);
1215 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1216 void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
1217 struct ieee80211_channel_sw_ie *sw_elem,
1218 struct ieee80211_bss *bss,
1220 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
1221 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1222 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1223 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1224 struct sk_buff *skb);
1225 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1226 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1227 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1230 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1231 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1232 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1233 const u8 *bssid, const u8 *addr, u32 supp_rates);
1234 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1235 struct cfg80211_ibss_params *params);
1236 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1237 void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
1238 void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
1239 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1240 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1241 struct sk_buff *skb);
1244 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1245 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1246 struct sk_buff *skb);
1248 /* scan/BSS handling */
1249 void ieee80211_scan_work(struct work_struct *work);
1250 int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
1251 const u8 *ssid, u8 ssid_len,
1252 struct ieee80211_channel *chan);
1253 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1254 struct cfg80211_scan_request *req);
1255 void ieee80211_scan_cancel(struct ieee80211_local *local);
1256 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1257 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1259 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1260 struct ieee80211_bss *
1261 ieee80211_bss_info_update(struct ieee80211_local *local,
1262 struct ieee80211_rx_status *rx_status,
1263 struct ieee80211_mgmt *mgmt,
1265 struct ieee802_11_elems *elems,
1266 struct ieee80211_channel *channel,
1268 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1269 struct ieee80211_bss *bss);
1271 /* scheduled scan handling */
1272 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1273 struct cfg80211_sched_scan_request *req);
1274 int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
1275 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1277 /* off-channel helpers */
1278 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local,
1279 bool offchannel_ps_enable);
1280 void ieee80211_offchannel_return(struct ieee80211_local *local,
1281 bool offchannel_ps_disable);
1282 void ieee80211_roc_setup(struct ieee80211_local *local);
1283 void ieee80211_start_next_roc(struct ieee80211_local *local);
1284 void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata);
1285 void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc);
1286 void ieee80211_sw_roc_work(struct work_struct *work);
1287 void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
1289 /* interface handling */
1290 int ieee80211_iface_init(void);
1291 void ieee80211_iface_exit(void);
1292 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1293 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1294 struct vif_params *params);
1295 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1296 enum nl80211_iftype type);
1297 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1298 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1299 void ieee80211_recalc_idle(struct ieee80211_local *local);
1300 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1302 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1303 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
1305 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1307 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1311 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1312 void ieee80211_tx_pending(unsigned long data);
1313 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1314 struct net_device *dev);
1315 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1316 struct net_device *dev);
1319 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1320 struct ieee80211_sta_ht_cap *ht_cap);
1321 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1322 struct ieee80211_supported_band *sband,
1323 struct ieee80211_ht_cap *ht_cap_ie,
1324 struct ieee80211_sta_ht_cap *ht_cap);
1325 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1326 const u8 *da, u16 tid,
1327 u16 initiator, u16 reason_code);
1328 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1329 enum ieee80211_smps_mode smps, const u8 *da,
1331 void ieee80211_request_smps_work(struct work_struct *work);
1333 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1334 u16 initiator, u16 reason, bool stop);
1335 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1336 u16 initiator, u16 reason, bool stop);
1337 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, bool tx);
1338 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1339 struct sta_info *sta,
1340 struct ieee80211_mgmt *mgmt, size_t len);
1341 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1342 struct sta_info *sta,
1343 struct ieee80211_mgmt *mgmt,
1345 void ieee80211_process_addba_request(struct ieee80211_local *local,
1346 struct sta_info *sta,
1347 struct ieee80211_mgmt *mgmt,
1350 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1351 enum ieee80211_back_parties initiator,
1353 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1354 enum ieee80211_back_parties initiator,
1356 void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1357 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
1358 void ieee80211_ba_session_work(struct work_struct *work);
1359 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1360 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1362 /* Spectrum management */
1363 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1364 struct ieee80211_mgmt *mgmt,
1367 /* Suspend/resume and hw reconfiguration */
1368 int ieee80211_reconfig(struct ieee80211_local *local);
1369 void ieee80211_stop_device(struct ieee80211_local *local);
1371 int __ieee80211_suspend(struct ieee80211_hw *hw,
1372 struct cfg80211_wowlan *wowlan);
1374 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1376 struct ieee80211_local *local = hw_to_local(hw);
1378 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
1379 "%s: resume with hardware scan still in progress\n",
1380 wiphy_name(hw->wiphy));
1382 return ieee80211_reconfig(hw_to_local(hw));
1385 /* utility functions/constants */
1386 extern void *mac80211_wiphy_privid; /* for wiphy privid */
1387 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
1388 enum nl80211_iftype type);
1389 int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
1390 int rate, int erp, int short_preamble);
1391 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
1392 struct ieee80211_hdr *hdr, const u8 *tsc,
1394 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1396 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
1398 void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1399 struct sk_buff *skb, int tid);
1400 static void inline ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
1401 struct sk_buff *skb)
1403 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1404 ieee80211_tx_skb_tid(sdata, skb, 7);
1407 void ieee802_11_parse_elems(u8 *start, size_t len,
1408 struct ieee802_11_elems *elems);
1409 u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
1410 struct ieee802_11_elems *elems,
1411 u64 filter, u32 crc);
1412 u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
1413 enum ieee80211_band band);
1415 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1416 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1417 void ieee80211_dynamic_ps_timer(unsigned long data);
1418 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1419 struct ieee80211_sub_if_data *sdata,
1421 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1422 struct ieee80211_hdr *hdr);
1423 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
1424 struct ieee80211_hdr *hdr, bool ack);
1426 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1427 enum queue_stop_reason reason);
1428 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1429 enum queue_stop_reason reason);
1430 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1431 enum queue_stop_reason reason);
1432 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1433 enum queue_stop_reason reason);
1434 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
1435 void ieee80211_add_pending_skb(struct ieee80211_local *local,
1436 struct sk_buff *skb);
1437 void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
1438 struct sk_buff_head *skbs,
1439 void (*fn)(void *data), void *data);
1440 static inline void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1441 struct sk_buff_head *skbs)
1443 ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL);
1446 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1447 u16 transaction, u16 auth_alg,
1448 u8 *extra, size_t extra_len, const u8 *bssid,
1449 const u8 *da, const u8 *key, u8 key_len, u8 key_idx);
1450 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
1451 const u8 *bssid, u16 stype, u16 reason,
1452 bool send_frame, u8 *frame_buf);
1453 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1454 const u8 *ie, size_t ie_len,
1455 enum ieee80211_band band, u32 rate_mask,
1457 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
1458 u8 *dst, u32 ratemask,
1459 struct ieee80211_channel *chan,
1460 const u8 *ssid, size_t ssid_len,
1461 const u8 *ie, size_t ie_len,
1463 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
1464 const u8 *ssid, size_t ssid_len,
1465 const u8 *ie, size_t ie_len,
1466 u32 ratemask, bool directed, bool no_cck,
1467 struct ieee80211_channel *channel);
1469 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1470 const size_t supp_rates_len,
1471 const u8 *supp_rates);
1472 u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1473 struct ieee802_11_elems *elems,
1474 enum ieee80211_band band, u32 *basic_rates);
1475 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1476 enum ieee80211_smps_mode smps_mode);
1477 void ieee80211_recalc_smps(struct ieee80211_local *local);
1479 size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
1480 const u8 *ids, int n_ids, size_t offset);
1481 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
1482 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1484 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1485 struct ieee80211_channel *channel,
1486 enum nl80211_channel_type channel_type,
1488 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1490 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
1491 struct sk_buff *skb, bool need_basic,
1492 enum ieee80211_band band);
1493 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
1494 struct sk_buff *skb, bool need_basic,
1495 enum ieee80211_band band);
1497 /* channel management */
1498 enum ieee80211_chan_mode {
1499 CHAN_MODE_UNDEFINED,
1504 enum ieee80211_chan_mode
1505 ieee80211_get_channel_mode(struct ieee80211_local *local,
1506 struct ieee80211_sub_if_data *ignore);
1507 bool ieee80211_set_channel_type(struct ieee80211_local *local,
1508 struct ieee80211_sub_if_data *sdata,
1509 enum nl80211_channel_type chantype);
1510 enum nl80211_channel_type
1511 ieee80211_ht_oper_to_channel_type(struct ieee80211_ht_operation *ht_oper);
1513 #ifdef CONFIG_MAC80211_NOINLINE
1514 #define debug_noinline noinline
1516 #define debug_noinline
1519 #endif /* IEEE80211_I_H */