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 struct ieee80211_fragment_entry {
72 unsigned long first_frag_time;
74 unsigned int rx_queue;
75 unsigned int last_frag;
76 unsigned int extra_len;
77 struct sk_buff_head skb_list;
78 int ccmp; /* Whether fragments were encrypted with CCMP */
79 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
83 struct ieee80211_bss {
84 /* don't want to look up all the time */
86 u8 ssid[IEEE80211_MAX_SSID_LEN];
95 unsigned long last_probe_resp;
97 #ifdef CONFIG_MAC80211_MESH
103 #define IEEE80211_MAX_SUPP_RATES 32
104 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
105 size_t supp_rates_len;
108 * During association, we save an ERP value from a probe response so
109 * that we can feed ERP info to the driver when handling the
110 * association completes. these fields probably won't be up-to-date
111 * otherwise, you probably don't want to use them.
116 /* Keep track of the corruption of the last beacon/probe response. */
119 /* Keep track of what bits of information we have valid info for. */
124 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
125 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
126 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
128 * These are bss flags that are attached to a bss in the
129 * @corrupt_data field of &struct ieee80211_bss.
131 enum ieee80211_bss_corrupt_data_flags {
132 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
133 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
137 * enum ieee80211_valid_data_flags - BSS valid data flags
138 * @IEEE80211_BSS_VALID_DTIM: DTIM data was gathered from non-corrupt IE
139 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
140 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
141 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
143 * These are bss flags that are attached to a bss in the
144 * @valid_data field of &struct ieee80211_bss. They show which parts
145 * of the data structure were recieved as a result of an un-corrupted
146 * beacon/probe response.
148 enum ieee80211_bss_valid_data_flags {
149 IEEE80211_BSS_VALID_DTIM = BIT(0),
150 IEEE80211_BSS_VALID_WMM = BIT(1),
151 IEEE80211_BSS_VALID_RATES = BIT(2),
152 IEEE80211_BSS_VALID_ERP = BIT(3)
155 static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
157 #ifdef CONFIG_MAC80211_MESH
158 return bss->mesh_cfg;
163 static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
165 #ifdef CONFIG_MAC80211_MESH
171 static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
173 #ifdef CONFIG_MAC80211_MESH
174 return bss->mesh_id_len;
180 typedef unsigned __bitwise__ ieee80211_tx_result;
181 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
182 #define TX_DROP ((__force ieee80211_tx_result) 1u)
183 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
185 #define IEEE80211_TX_UNICAST BIT(1)
186 #define IEEE80211_TX_PS_BUFFERED BIT(2)
188 struct ieee80211_tx_data {
190 struct sk_buff_head skbs;
191 struct ieee80211_local *local;
192 struct ieee80211_sub_if_data *sdata;
193 struct sta_info *sta;
194 struct ieee80211_key *key;
200 typedef unsigned __bitwise__ ieee80211_rx_result;
201 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
202 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
203 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
204 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
207 * enum ieee80211_packet_rx_flags - packet RX flags
208 * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
209 * (incl. multicast frames)
210 * @IEEE80211_RX_FRAGMENTED: fragmented frame
211 * @IEEE80211_RX_AMSDU: a-MSDU packet
212 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
213 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
215 * These are per-frame flags that are attached to a frame in the
216 * @rx_flags field of &struct ieee80211_rx_status.
218 enum ieee80211_packet_rx_flags {
219 IEEE80211_RX_RA_MATCH = BIT(1),
220 IEEE80211_RX_FRAGMENTED = BIT(2),
221 IEEE80211_RX_AMSDU = BIT(3),
222 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
223 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
227 * enum ieee80211_rx_flags - RX data flags
229 * @IEEE80211_RX_CMNTR: received on cooked monitor already
230 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
231 * to cfg80211_report_obss_beacon().
233 * These flags are used across handling multiple interfaces
234 * for a single frame.
236 enum ieee80211_rx_flags {
237 IEEE80211_RX_CMNTR = BIT(0),
238 IEEE80211_RX_BEACON_REPORTED = BIT(1),
241 struct ieee80211_rx_data {
243 struct ieee80211_local *local;
244 struct ieee80211_sub_if_data *sdata;
245 struct sta_info *sta;
246 struct ieee80211_key *key;
251 * Index into sequence numbers array, 0..16
252 * since the last (16) is used for non-QoS,
253 * will be 16 on non-QoS frames.
258 * Index into the security IV/PN arrays, 0..16
259 * since the last (16) is used for CCMP-encrypted
260 * management frames, will be set to 16 on mgmt
261 * frames and 0 on non-QoS frames.
271 int head_len, tail_len;
272 struct rcu_head rcu_head;
276 struct rcu_head rcu_head;
281 struct ieee80211_if_ap {
282 struct beacon_data __rcu *beacon;
283 struct probe_resp __rcu *probe_resp;
285 struct list_head vlans;
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 ps_bc_buf;
292 atomic_t num_sta_ps; /* number of stations in PS mode */
293 atomic_t num_mcast_sta; /* number of stations receiving multicast */
298 struct ieee80211_if_wds {
299 struct sta_info *sta;
300 u8 remote_addr[ETH_ALEN];
303 struct ieee80211_if_vlan {
304 struct list_head list;
306 /* used for all tx if the VLAN is configured to 4-addr mode */
307 struct sta_info __rcu *sta;
311 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
312 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
313 __u32 fwded_frames; /* Mesh total forwarded frames */
314 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
315 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
316 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
317 atomic_t estab_plinks;
320 #define PREQ_Q_F_START 0x1
321 #define PREQ_Q_F_REFRESH 0x2
322 struct mesh_preq_queue {
323 struct list_head list;
329 #define IEEE80211_ROC_MIN_LEFT 1
331 #define IEEE80211_ROC_MIN_LEFT (HZ/100)
334 struct ieee80211_roc_work {
335 struct list_head list;
336 struct list_head dependents;
338 struct delayed_work work;
340 struct ieee80211_sub_if_data *sdata;
342 struct ieee80211_channel *chan;
343 enum nl80211_channel_type chan_type;
345 bool started, abort, hw_begun, notified;
347 unsigned long hw_start_time;
349 u32 duration, req_duration;
350 struct sk_buff *frame;
354 /* flags used in struct ieee80211_if_managed.flags */
355 enum ieee80211_sta_flags {
356 IEEE80211_STA_BEACON_POLL = BIT(0),
357 IEEE80211_STA_CONNECTION_POLL = BIT(1),
358 IEEE80211_STA_CONTROL_PORT = BIT(2),
359 IEEE80211_STA_DISABLE_11N = BIT(4),
360 IEEE80211_STA_CSA_RECEIVED = BIT(5),
361 IEEE80211_STA_MFP_ENABLED = BIT(6),
362 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
363 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
364 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
365 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
366 IEEE80211_STA_DISABLE_VHT = BIT(11),
369 struct ieee80211_mgd_auth_data {
370 struct cfg80211_bss *bss;
371 unsigned long timeout;
373 u16 algorithm, expected_transaction;
375 u8 key[WLAN_KEY_LEN_WEP104];
383 struct ieee80211_mgd_assoc_data {
384 struct cfg80211_bss *bss;
385 const u8 *supp_rates;
387 unsigned long timeout;
391 u8 prev_bssid[ETH_ALEN];
392 u8 ssid[IEEE80211_MAX_SSID_LEN];
406 struct ieee80211_if_managed {
407 struct timer_list timer;
408 struct timer_list conn_mon_timer;
409 struct timer_list bcn_mon_timer;
410 struct timer_list chswitch_timer;
411 struct work_struct monitor_work;
412 struct work_struct chswitch_work;
413 struct work_struct beacon_connection_loss_work;
415 unsigned long beacon_timeout;
416 unsigned long probe_timeout;
417 int probe_send_count;
418 bool nullfunc_failed;
421 struct cfg80211_bss *associated;
422 struct ieee80211_mgd_auth_data *auth_data;
423 struct ieee80211_mgd_assoc_data *assoc_data;
429 unsigned long timers_running; /* used for quiesce/restart */
430 bool powersave; /* powersave requested for this iface */
431 bool broken_ap; /* AP is broken -- turn off powersave */
432 enum ieee80211_smps_mode req_smps, /* requested smps mode */
433 ap_smps, /* smps mode AP thinks we're in */
434 driver_smps_mode; /* smps mode request */
436 struct work_struct request_smps_work;
440 bool beacon_crc_valid;
444 IEEE80211_MFP_DISABLED,
445 IEEE80211_MFP_OPTIONAL,
446 IEEE80211_MFP_REQUIRED
447 } mfp; /* management frame protection */
450 * Bitmask of enabled u-apsd queues,
451 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
454 unsigned int uapsd_queues;
457 * Maximum number of buffered frames AP can deliver during a
458 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
459 * Needs a new association to take effect.
461 unsigned int uapsd_max_sp_len;
463 int wmm_last_param_set;
467 /* Signal strength from the last Beacon frame in the current BSS. */
468 int last_beacon_signal;
471 * Weighted average of the signal strength from Beacon frames in the
472 * current BSS. This is in units of 1/16 of the signal unit to maintain
473 * accuracy and to speed up calculations, i.e., the value need to be
474 * divided by 16 to get the actual value.
476 int ave_beacon_signal;
479 * Number of Beacon frames used in ave_beacon_signal. This can be used
480 * to avoid generating less reliable cqm events that would be based
481 * only on couple of received frames.
483 unsigned int count_beacon_signal;
486 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
487 * that triggered a cqm event. 0 indicates that no event has been
488 * generated for the current association.
490 int last_cqm_event_signal;
493 * State variables for keeping track of RSSI of the AP currently
494 * connected to and informing driver when RSSI has gone
495 * below/above a certain threshold.
497 int rssi_min_thold, rssi_max_thold;
498 int last_ave_beacon_signal;
500 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
501 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
504 struct ieee80211_if_ibss {
505 struct timer_list timer;
509 unsigned long last_scan_completed;
520 unsigned int auth_frame_registrations;
522 u8 bssid[ETH_ALEN] __aligned(2);
523 u8 ssid[IEEE80211_MAX_SSID_LEN];
526 struct ieee80211_channel *channel;
527 enum nl80211_channel_type channel_type;
529 unsigned long ibss_join_req;
530 /* probe response/beacon for IBSS */
531 struct sk_buff __rcu *presp;
534 spinlock_t incomplete_lock;
535 struct list_head incomplete_stations;
538 IEEE80211_IBSS_MLME_SEARCH,
539 IEEE80211_IBSS_MLME_JOINED,
544 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
546 * these declarations define the interface, which enables
547 * vendor-specific mesh synchronization
550 struct ieee802_11_elems;
551 struct ieee80211_mesh_sync_ops {
552 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
554 struct ieee80211_mgmt *mgmt,
555 struct ieee802_11_elems *elems,
556 struct ieee80211_rx_status *rx_status);
557 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata);
558 /* add other framework functions here */
561 struct ieee80211_if_mesh {
562 struct timer_list housekeeping_timer;
563 struct timer_list mesh_path_timer;
564 struct timer_list mesh_path_root_timer;
566 unsigned long timers_running;
568 unsigned long wrkq_flags;
570 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
572 /* Active Path Selection Protocol Identifier */
574 /* Active Path Selection Metric Identifier */
576 /* Congestion Control Mode Identifier */
578 /* Synchronization Protocol Identifier */
580 /* Authentication Protocol Identifier */
582 /* Local mesh Sequence Number */
584 /* Last used PREQ ID */
587 /* Timestamp of last SN update */
588 unsigned long last_sn_update;
589 /* Time when it's ok to send next PERR */
590 unsigned long next_perr;
591 /* Timestamp of last PREQ sent */
592 unsigned long last_preq;
593 struct mesh_rmc *rmc;
594 spinlock_t mesh_preq_queue_lock;
595 struct mesh_preq_queue preq_queue;
597 struct mesh_stats mshstats;
598 struct mesh_config mshcfg;
600 bool accepting_plinks;
605 IEEE80211_MESH_SEC_NONE = 0x0,
606 IEEE80211_MESH_SEC_AUTHED = 0x1,
607 IEEE80211_MESH_SEC_SECURED = 0x2,
609 /* Extensible Synchronization Framework */
610 struct ieee80211_mesh_sync_ops *sync_ops;
611 s64 sync_offset_clockdrift_max;
612 spinlock_t sync_offset_lock;
616 #ifdef CONFIG_MAC80211_MESH
617 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
618 do { (msh)->mshstats.name++; } while (0)
620 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
625 * enum ieee80211_sub_if_data_flags - virtual interface flags
627 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
628 * @IEEE80211_SDATA_PROMISC: interface is promisc
629 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
630 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
631 * associated stations and deliver multicast frames both
632 * back to wireless media and to the local net stack.
633 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
634 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
636 enum ieee80211_sub_if_data_flags {
637 IEEE80211_SDATA_ALLMULTI = BIT(0),
638 IEEE80211_SDATA_PROMISC = BIT(1),
639 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
640 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
641 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
642 IEEE80211_SDATA_IN_DRIVER = BIT(5),
646 * enum ieee80211_sdata_state_bits - virtual interface state bits
647 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
648 * mirrors netif_running() but is separate for interface type
649 * change handling while the interface is up
650 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
651 * mode, so queues are stopped
653 enum ieee80211_sdata_state_bits {
655 SDATA_STATE_OFFCHANNEL,
658 struct ieee80211_sub_if_data {
659 struct list_head list;
661 struct wireless_dev wdev;
664 struct list_head key_list;
666 /* count for keys needing tailroom space allocation */
667 int crypto_tx_tailroom_needed_cnt;
669 struct net_device *dev;
670 struct ieee80211_local *local;
676 int drop_unencrypted;
680 /* to detect idle changes */
683 /* Fragment table for host-based reassembly */
684 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
685 unsigned int fragment_next;
687 /* TID bitmap for NoAck policy */
690 /* bit field of ACM bits (BIT(802.1D tag)) */
693 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
694 struct ieee80211_key __rcu *default_unicast_key;
695 struct ieee80211_key __rcu *default_multicast_key;
696 struct ieee80211_key __rcu *default_mgmt_key;
699 __be16 control_port_protocol;
700 bool control_port_no_encrypt;
702 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
704 struct work_struct work;
705 struct sk_buff_head skb_queue;
707 bool arp_filter_state;
710 * AP this belongs to: self in AP mode and
711 * corresponding AP in VLAN mode, NULL for
712 * all others (might be needed later in IBSS)
714 struct ieee80211_if_ap *bss;
716 /* bitmap of allowed (non-MCS) rate indexes for rate control */
717 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
718 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
721 struct ieee80211_if_ap ap;
722 struct ieee80211_if_wds wds;
723 struct ieee80211_if_vlan vlan;
724 struct ieee80211_if_managed mgd;
725 struct ieee80211_if_ibss ibss;
726 struct ieee80211_if_mesh mesh;
730 #ifdef CONFIG_MAC80211_DEBUGFS
733 struct dentry *subdir_stations;
734 struct dentry *default_unicast_key;
735 struct dentry *default_multicast_key;
736 struct dentry *default_mgmt_key;
739 /* must be last, dynamically sized area in this! */
740 struct ieee80211_vif vif;
744 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
746 return container_of(p, struct ieee80211_sub_if_data, vif);
749 enum sdata_queue_type {
750 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
751 IEEE80211_SDATA_QUEUE_AGG_START = 1,
752 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
756 IEEE80211_RX_MSG = 1,
757 IEEE80211_TX_STATUS_MSG = 2,
758 IEEE80211_EOSP_MSG = 3,
761 struct skb_eosp_msg_data {
762 u8 sta[ETH_ALEN], iface[ETH_ALEN];
765 enum queue_stop_reason {
766 IEEE80211_QUEUE_STOP_REASON_DRIVER,
767 IEEE80211_QUEUE_STOP_REASON_PS,
768 IEEE80211_QUEUE_STOP_REASON_CSA,
769 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
770 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
771 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
774 #ifdef CONFIG_MAC80211_LEDS
775 struct tpt_led_trigger {
776 struct led_trigger trig;
778 const struct ieee80211_tpt_blink *blink_table;
779 unsigned int blink_table_len;
780 struct timer_list timer;
781 unsigned long prev_traffic;
782 unsigned long tx_bytes, rx_bytes;
783 unsigned int active, want;
789 * mac80211 scan flags - currently active scan mode
791 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
792 * well be on the operating channel
793 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
794 * determine if we are on the operating channel or not
795 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
796 * channel. This should not interrupt normal traffic.
797 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
798 * that the scan completed.
799 * @SCAN_ABORTED: Set for our scan work function when the driver reported
800 * a scan complete for an aborted scan.
805 SCAN_ONCHANNEL_SCANNING,
811 * enum mac80211_scan_state - scan state machine states
813 * @SCAN_DECISION: Main entry point to the scan state machine, this state
814 * determines if we should keep on scanning or switch back to the
816 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
817 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
818 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
820 * @SCAN_RESUME: Resume the scan and scan the next channel
822 enum mac80211_scan_state {
830 struct ieee80211_local {
831 /* embed the driver visible part.
832 * don't cast (use the static inlines below), but we keep
833 * it first anyway so they become a no-op */
834 struct ieee80211_hw hw;
836 const struct ieee80211_ops *ops;
839 * private workqueue to mac80211. mac80211 makes this accessible
840 * via ieee80211_queue_work()
842 struct workqueue_struct *workqueue;
844 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
845 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
846 spinlock_t queue_stop_reason_lock;
849 int monitors, cooked_mntrs;
850 /* number of interfaces with corresponding FIF_ flags */
851 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
854 unsigned int filter_flags; /* FIF_* */
856 bool wiphy_ciphers_allocated;
858 /* protects the aggregated multicast list and filter calls */
859 spinlock_t filter_lock;
861 /* used for uploading changed mc list */
862 struct work_struct reconfig_filter;
864 /* used to reconfigure hardware SM PS */
865 struct work_struct recalc_smps;
867 /* aggregated multicast list */
868 struct netdev_hw_addr_list mc_list;
870 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
873 * suspended is true if we finished all the suspend _and_ we have
874 * not yet come up from resume. This is to be used by mac80211
875 * to ensure driver sanity during suspend and mac80211's own
876 * sanity. It can eventually be used for WoW as well.
881 * Resuming is true while suspended, but when we're reprogramming the
882 * hardware -- at that time it's allowed to use ieee80211_queue_work()
883 * again even though some other parts of the stack are still suspended
884 * and we still drop received frames to avoid waking the stack.
889 * quiescing is true during the suspend process _only_ to
890 * ease timer cancelling etc.
894 /* device is started */
897 /* device is during a HW reconfig */
900 /* wowlan is enabled -- don't reconfig on resume */
903 int tx_headroom; /* required headroom for hardware/radiotap */
905 /* Tasklet and skb queue to process calls from IRQ mode. All frames
906 * added to skb_queue will be processed, but frames in
907 * skb_queue_unreliable may be dropped if the total length of these
908 * queues increases over the limit. */
909 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
910 struct tasklet_struct tasklet;
911 struct sk_buff_head skb_queue;
912 struct sk_buff_head skb_queue_unreliable;
915 * Internal FIFO queue which is shared between multiple rx path
916 * stages. Its main task is to provide a serialization mechanism,
917 * so all rx handlers can enjoy having exclusive access to their
918 * private data structures.
920 struct sk_buff_head rx_skb_queue;
921 bool running_rx_handler; /* protected by rx_skb_queue.lock */
925 * The mutex only protects the list, hash table and
926 * counter, reads are done with RCU.
928 struct mutex sta_mtx;
930 unsigned long num_sta;
931 struct list_head sta_list;
932 struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
933 struct timer_list sta_cleanup;
936 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
937 struct tasklet_struct tx_pending_tasklet;
939 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
941 /* number of interfaces with corresponding IFF_ flags */
942 atomic_t iff_allmultis, iff_promiscs;
944 struct rate_control_ref *rate_ctrl;
946 struct crypto_cipher *wep_tx_tfm;
947 struct crypto_cipher *wep_rx_tfm;
951 struct list_head interfaces;
952 struct mutex iflist_mtx;
955 * Key mutex, protects sdata's key_list and sta_info's
956 * key pointers (write access, they're RCU.)
958 struct mutex key_mtx;
960 /* mutex for scan and work locking */
963 /* Scanning and BSS list */
964 unsigned long scanning;
965 struct cfg80211_ssid scan_ssid;
966 struct cfg80211_scan_request *int_scan_req;
967 struct cfg80211_scan_request *scan_req, *hw_scan_req;
968 struct ieee80211_channel *scan_channel;
969 enum ieee80211_band hw_scan_band;
970 int scan_channel_idx;
973 struct ieee80211_sched_scan_ies sched_scan_ies;
974 struct work_struct sched_scan_stopped_work;
975 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
977 unsigned long leave_oper_channel_time;
978 enum mac80211_scan_state next_scan_state;
979 struct delayed_work scan_work;
980 struct ieee80211_sub_if_data __rcu *scan_sdata;
981 enum nl80211_channel_type _oper_channel_type;
982 struct ieee80211_channel *oper_channel, *csa_channel;
984 /* Temporary remain-on-channel for off-channel operations */
985 struct ieee80211_channel *tmp_channel;
986 enum nl80211_channel_type tmp_channel_type;
989 /* dot11CountersTable */
990 u32 dot11TransmittedFragmentCount;
991 u32 dot11MulticastTransmittedFrameCount;
992 u32 dot11FailedCount;
994 u32 dot11MultipleRetryCount;
995 u32 dot11FrameDuplicateCount;
996 u32 dot11ReceivedFragmentCount;
997 u32 dot11MulticastReceivedFrameCount;
998 u32 dot11TransmittedFrameCount;
1000 #ifdef CONFIG_MAC80211_LEDS
1001 int tx_led_counter, rx_led_counter;
1002 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
1003 struct tpt_led_trigger *tpt_led_trigger;
1004 char tx_led_name[32], rx_led_name[32],
1005 assoc_led_name[32], radio_led_name[32];
1008 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1009 /* TX/RX handler statistics */
1010 unsigned int tx_handlers_drop;
1011 unsigned int tx_handlers_queued;
1012 unsigned int tx_handlers_drop_unencrypted;
1013 unsigned int tx_handlers_drop_fragment;
1014 unsigned int tx_handlers_drop_wep;
1015 unsigned int tx_handlers_drop_not_assoc;
1016 unsigned int tx_handlers_drop_unauth_port;
1017 unsigned int rx_handlers_drop;
1018 unsigned int rx_handlers_queued;
1019 unsigned int rx_handlers_drop_nullfunc;
1020 unsigned int rx_handlers_drop_defrag;
1021 unsigned int rx_handlers_drop_short;
1022 unsigned int tx_expand_skb_head;
1023 unsigned int tx_expand_skb_head_cloned;
1024 unsigned int rx_expand_skb_head;
1025 unsigned int rx_expand_skb_head2;
1026 unsigned int rx_handlers_fragments;
1027 unsigned int tx_status_drop;
1028 #define I802_DEBUG_INC(c) (c)++
1029 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1030 #define I802_DEBUG_INC(c) do { } while (0)
1031 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1034 int total_ps_buffered; /* total number of all buffered unicast and
1035 * multicast packets for power saving stations
1039 bool offchannel_ps_enabled;
1041 * PS can only be enabled when we have exactly one managed
1042 * interface (and monitors) in PS, this then points there.
1044 struct ieee80211_sub_if_data *ps_sdata;
1045 struct work_struct dynamic_ps_enable_work;
1046 struct work_struct dynamic_ps_disable_work;
1047 struct timer_list dynamic_ps_timer;
1048 struct notifier_block network_latency_notifier;
1049 struct notifier_block ifa_notifier;
1052 * The dynamic ps timeout configured from user space via WEXT -
1053 * this will override whatever chosen by mac80211 internally.
1055 int dynamic_ps_forced_timeout;
1056 int dynamic_ps_user_timeout;
1057 bool disable_dynamic_ps;
1059 int user_power_level; /* in dBm */
1060 int power_constr_level; /* in dBm */
1062 enum ieee80211_smps_mode smps_mode;
1064 struct work_struct restart_work;
1066 #ifdef CONFIG_MAC80211_DEBUGFS
1067 struct local_debugfsdentries {
1068 struct dentry *rcdir;
1069 struct dentry *keys;
1074 * Remain-on-channel support
1076 struct list_head roc_list;
1077 struct work_struct hw_roc_start, hw_roc_done;
1078 unsigned long hw_roc_start_time;
1080 struct idr ack_status_frames;
1081 spinlock_t ack_status_lock;
1083 /* dummy netdev for use w/ NAPI */
1084 struct net_device napi_dev;
1086 struct napi_struct napi;
1088 /* virtual monitor interface */
1089 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1092 static inline struct ieee80211_sub_if_data *
1093 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1095 return netdev_priv(dev);
1098 static inline struct ieee80211_sub_if_data *
1099 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1101 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1104 /* this struct represents 802.11n's RA/TID combination */
1105 struct ieee80211_ra_tid {
1110 /* Parsed Information Elements */
1111 struct ieee802_11_elems {
1115 /* pointers to IEs */
1121 struct ieee80211_tim_ie *tim;
1130 struct ieee80211_ht_cap *ht_cap_elem;
1131 struct ieee80211_ht_operation *ht_operation;
1132 struct ieee80211_meshconf_ie *mesh_config;
1138 struct ieee80211_rann_ie *rann;
1139 struct ieee80211_channel_sw_ie *ch_switch_ie;
1141 u8 *pwr_constr_elem;
1142 u8 *quiet_elem; /* first quite element */
1145 /* length of them, respectively */
1157 u8 ext_supp_rates_len;
1165 u8 country_elem_len;
1166 u8 pwr_constr_elem_len;
1168 u8 num_of_quiet_elem; /* can be more the one */
1171 /* whether a parse error occurred while retrieving these elements */
1175 static inline struct ieee80211_local *hw_to_local(
1176 struct ieee80211_hw *hw)
1178 return container_of(hw, struct ieee80211_local, hw);
1182 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1184 return ether_addr_equal(raddr, addr) ||
1185 is_broadcast_ether_addr(raddr);
1189 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1190 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1191 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1193 void ieee80211_configure_filter(struct ieee80211_local *local);
1194 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1197 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1198 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1199 struct cfg80211_auth_request *req);
1200 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1201 struct cfg80211_assoc_request *req);
1202 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1203 struct cfg80211_deauth_request *req);
1204 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1205 struct cfg80211_disassoc_request *req);
1206 void ieee80211_send_pspoll(struct ieee80211_local *local,
1207 struct ieee80211_sub_if_data *sdata);
1208 void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
1209 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1210 int ieee80211_max_network_latency(struct notifier_block *nb,
1211 unsigned long data, void *dummy);
1212 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1213 void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
1214 struct ieee80211_channel_sw_ie *sw_elem,
1215 struct ieee80211_bss *bss,
1217 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
1218 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1219 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1220 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1221 struct sk_buff *skb);
1222 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1223 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1224 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1227 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1228 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1229 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1230 const u8 *bssid, const u8 *addr, u32 supp_rates);
1231 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1232 struct cfg80211_ibss_params *params);
1233 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1234 void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
1235 void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
1236 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1237 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1238 struct sk_buff *skb);
1241 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1242 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1243 struct sk_buff *skb);
1245 /* scan/BSS handling */
1246 void ieee80211_scan_work(struct work_struct *work);
1247 int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
1248 const u8 *ssid, u8 ssid_len,
1249 struct ieee80211_channel *chan);
1250 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1251 struct cfg80211_scan_request *req);
1252 void ieee80211_scan_cancel(struct ieee80211_local *local);
1253 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1254 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1256 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1257 struct ieee80211_bss *
1258 ieee80211_bss_info_update(struct ieee80211_local *local,
1259 struct ieee80211_rx_status *rx_status,
1260 struct ieee80211_mgmt *mgmt,
1262 struct ieee802_11_elems *elems,
1263 struct ieee80211_channel *channel,
1265 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1266 struct ieee80211_bss *bss);
1268 /* scheduled scan handling */
1269 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1270 struct cfg80211_sched_scan_request *req);
1271 int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
1272 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1274 /* off-channel helpers */
1275 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local,
1276 bool offchannel_ps_enable);
1277 void ieee80211_offchannel_return(struct ieee80211_local *local,
1278 bool offchannel_ps_disable);
1279 void ieee80211_roc_setup(struct ieee80211_local *local);
1280 void ieee80211_start_next_roc(struct ieee80211_local *local);
1281 void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata);
1282 void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc);
1283 void ieee80211_sw_roc_work(struct work_struct *work);
1284 void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
1286 /* interface handling */
1287 int ieee80211_iface_init(void);
1288 void ieee80211_iface_exit(void);
1289 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1290 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1291 struct vif_params *params);
1292 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1293 enum nl80211_iftype type);
1294 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1295 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1296 void ieee80211_recalc_idle(struct ieee80211_local *local);
1297 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1300 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1302 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1306 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1307 void ieee80211_tx_pending(unsigned long data);
1308 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1309 struct net_device *dev);
1310 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1311 struct net_device *dev);
1314 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1315 struct ieee80211_sta_ht_cap *ht_cap);
1316 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1317 struct ieee80211_supported_band *sband,
1318 struct ieee80211_ht_cap *ht_cap_ie,
1319 struct ieee80211_sta_ht_cap *ht_cap);
1320 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1321 const u8 *da, u16 tid,
1322 u16 initiator, u16 reason_code);
1323 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1324 enum ieee80211_smps_mode smps, const u8 *da,
1326 void ieee80211_request_smps_work(struct work_struct *work);
1328 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1329 u16 initiator, u16 reason, bool stop);
1330 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1331 u16 initiator, u16 reason, bool stop);
1332 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, bool tx);
1333 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1334 struct sta_info *sta,
1335 struct ieee80211_mgmt *mgmt, size_t len);
1336 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1337 struct sta_info *sta,
1338 struct ieee80211_mgmt *mgmt,
1340 void ieee80211_process_addba_request(struct ieee80211_local *local,
1341 struct sta_info *sta,
1342 struct ieee80211_mgmt *mgmt,
1345 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1346 enum ieee80211_back_parties initiator,
1348 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1349 enum ieee80211_back_parties initiator,
1351 void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1352 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
1353 void ieee80211_ba_session_work(struct work_struct *work);
1354 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1355 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1357 /* Spectrum management */
1358 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1359 struct ieee80211_mgmt *mgmt,
1362 /* Suspend/resume and hw reconfiguration */
1363 int ieee80211_reconfig(struct ieee80211_local *local);
1364 void ieee80211_stop_device(struct ieee80211_local *local);
1367 int __ieee80211_suspend(struct ieee80211_hw *hw,
1368 struct cfg80211_wowlan *wowlan);
1370 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1372 struct ieee80211_local *local = hw_to_local(hw);
1374 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
1375 "%s: resume with hardware scan still in progress\n",
1376 wiphy_name(hw->wiphy));
1378 return ieee80211_reconfig(hw_to_local(hw));
1381 static inline int __ieee80211_suspend(struct ieee80211_hw *hw,
1382 struct cfg80211_wowlan *wowlan)
1387 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1393 /* utility functions/constants */
1394 extern void *mac80211_wiphy_privid; /* for wiphy privid */
1395 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
1396 enum nl80211_iftype type);
1397 int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
1398 int rate, int erp, int short_preamble);
1399 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
1400 struct ieee80211_hdr *hdr, const u8 *tsc,
1402 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1404 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
1406 void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1407 struct sk_buff *skb, int tid);
1408 static void inline ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
1409 struct sk_buff *skb)
1411 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1412 ieee80211_tx_skb_tid(sdata, skb, 7);
1415 void ieee802_11_parse_elems(u8 *start, size_t len,
1416 struct ieee802_11_elems *elems);
1417 u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
1418 struct ieee802_11_elems *elems,
1419 u64 filter, u32 crc);
1420 u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
1421 enum ieee80211_band band);
1423 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1424 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1425 void ieee80211_dynamic_ps_timer(unsigned long data);
1426 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1427 struct ieee80211_sub_if_data *sdata,
1429 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1430 struct ieee80211_hdr *hdr);
1431 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
1432 struct ieee80211_hdr *hdr, bool ack);
1434 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1435 enum queue_stop_reason reason);
1436 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1437 enum queue_stop_reason reason);
1438 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1439 enum queue_stop_reason reason);
1440 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1441 enum queue_stop_reason reason);
1442 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
1443 void ieee80211_add_pending_skb(struct ieee80211_local *local,
1444 struct sk_buff *skb);
1445 void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
1446 struct sk_buff_head *skbs,
1447 void (*fn)(void *data), void *data);
1448 static inline void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1449 struct sk_buff_head *skbs)
1451 ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL);
1454 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1455 u16 transaction, u16 auth_alg,
1456 u8 *extra, size_t extra_len, const u8 *bssid,
1457 const u8 *da, const u8 *key, u8 key_len, u8 key_idx);
1458 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1459 const u8 *ie, size_t ie_len,
1460 enum ieee80211_band band, u32 rate_mask,
1462 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
1463 u8 *dst, u32 ratemask,
1464 struct ieee80211_channel *chan,
1465 const u8 *ssid, size_t ssid_len,
1466 const u8 *ie, size_t ie_len,
1468 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
1469 const u8 *ssid, size_t ssid_len,
1470 const u8 *ie, size_t ie_len,
1471 u32 ratemask, bool directed, bool no_cck);
1473 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1474 const size_t supp_rates_len,
1475 const u8 *supp_rates);
1476 u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1477 struct ieee802_11_elems *elems,
1478 enum ieee80211_band band, u32 *basic_rates);
1479 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1480 enum ieee80211_smps_mode smps_mode);
1481 void ieee80211_recalc_smps(struct ieee80211_local *local);
1483 size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
1484 const u8 *ids, int n_ids, size_t offset);
1485 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
1486 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1488 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1489 struct ieee80211_channel *channel,
1490 enum nl80211_channel_type channel_type,
1492 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1494 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
1495 struct sk_buff *skb, bool need_basic,
1496 enum ieee80211_band band);
1497 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
1498 struct sk_buff *skb, bool need_basic,
1499 enum ieee80211_band band);
1501 /* channel management */
1502 enum ieee80211_chan_mode {
1503 CHAN_MODE_UNDEFINED,
1508 enum ieee80211_chan_mode
1509 ieee80211_get_channel_mode(struct ieee80211_local *local,
1510 struct ieee80211_sub_if_data *ignore);
1511 bool ieee80211_set_channel_type(struct ieee80211_local *local,
1512 struct ieee80211_sub_if_data *sdata,
1513 enum nl80211_channel_type chantype);
1514 enum nl80211_channel_type
1515 ieee80211_ht_oper_to_channel_type(struct ieee80211_ht_operation *ht_oper);
1517 #ifdef CONFIG_MAC80211_NOINLINE
1518 #define debug_noinline noinline
1520 #define debug_noinline
1523 #endif /* IEEE80211_I_H */