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>
34 struct ieee80211_local;
36 /* Maximum number of broadcast/multicast frames to buffer when some of the
37 * associated stations are using power saving. */
38 #define AP_MAX_BC_BUFFER 128
40 /* Maximum number of frames buffered to all STAs, including multicast frames.
41 * Note: increasing this limit increases the potential memory requirement. Each
42 * frame can be up to about 2 kB long. */
43 #define TOTAL_MAX_TX_BUFFER 512
45 /* Required encryption head and tailroom */
46 #define IEEE80211_ENCRYPT_HEADROOM 8
47 #define IEEE80211_ENCRYPT_TAILROOM 18
49 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
50 * reception of at least three fragmented frames. This limit can be increased
51 * by changing this define, at the cost of slower frame reassembly and
52 * increased memory use (about 2 kB of RAM per entry). */
53 #define IEEE80211_FRAGMENT_MAX 4
55 #define TU_TO_JIFFIES(x) (usecs_to_jiffies((x) * 1024))
56 #define TU_TO_EXP_TIME(x) (jiffies + TU_TO_JIFFIES(x))
58 #define IEEE80211_DEFAULT_UAPSD_QUEUES \
59 (IEEE80211_WMM_IE_STA_QOSINFO_AC_BK | \
60 IEEE80211_WMM_IE_STA_QOSINFO_AC_BE | \
61 IEEE80211_WMM_IE_STA_QOSINFO_AC_VI | \
62 IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
64 #define IEEE80211_DEFAULT_MAX_SP_LEN \
65 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
67 struct ieee80211_fragment_entry {
68 unsigned long first_frag_time;
70 unsigned int rx_queue;
71 unsigned int last_frag;
72 unsigned int extra_len;
73 struct sk_buff_head skb_list;
74 int ccmp; /* Whether fragments were encrypted with CCMP */
75 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
79 struct ieee80211_bss {
80 /* don't want to look up all the time */
82 u8 ssid[IEEE80211_MAX_SSID_LEN];
89 unsigned long last_probe_resp;
91 #ifdef CONFIG_MAC80211_MESH
97 #define IEEE80211_MAX_SUPP_RATES 32
98 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
99 size_t supp_rates_len;
102 * During association, we save an ERP value from a probe response so
103 * that we can feed ERP info to the driver when handling the
104 * association completes. these fields probably won't be up-to-date
105 * otherwise, you probably don't want to use them.
110 /* Keep track of the corruption of the last beacon/probe response. */
113 /* Keep track of what bits of information we have valid info for. */
118 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
119 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
120 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
122 * These are bss flags that are attached to a bss in the
123 * @corrupt_data field of &struct ieee80211_bss.
125 enum ieee80211_bss_corrupt_data_flags {
126 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
127 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
131 * enum ieee80211_valid_data_flags - BSS valid data flags
132 * @IEEE80211_BSS_VALID_DTIM: DTIM data was gathered from non-corrupt IE
133 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
134 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
135 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
137 * These are bss flags that are attached to a bss in the
138 * @valid_data field of &struct ieee80211_bss. They show which parts
139 * of the data structure were recieved as a result of an un-corrupted
140 * beacon/probe response.
142 enum ieee80211_bss_valid_data_flags {
143 IEEE80211_BSS_VALID_DTIM = BIT(0),
144 IEEE80211_BSS_VALID_WMM = BIT(1),
145 IEEE80211_BSS_VALID_RATES = BIT(2),
146 IEEE80211_BSS_VALID_ERP = BIT(3)
149 static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
151 #ifdef CONFIG_MAC80211_MESH
152 return bss->mesh_cfg;
157 static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
159 #ifdef CONFIG_MAC80211_MESH
165 static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
167 #ifdef CONFIG_MAC80211_MESH
168 return bss->mesh_id_len;
174 typedef unsigned __bitwise__ ieee80211_tx_result;
175 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
176 #define TX_DROP ((__force ieee80211_tx_result) 1u)
177 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
179 #define IEEE80211_TX_UNICAST BIT(1)
180 #define IEEE80211_TX_PS_BUFFERED BIT(2)
182 struct ieee80211_tx_data {
184 struct sk_buff_head skbs;
185 struct ieee80211_local *local;
186 struct ieee80211_sub_if_data *sdata;
187 struct sta_info *sta;
188 struct ieee80211_key *key;
190 struct ieee80211_channel *channel;
196 typedef unsigned __bitwise__ ieee80211_rx_result;
197 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
198 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
199 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
200 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
203 * enum ieee80211_packet_rx_flags - packet RX flags
204 * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
205 * (incl. multicast frames)
206 * @IEEE80211_RX_IN_SCAN: received while scanning
207 * @IEEE80211_RX_FRAGMENTED: fragmented frame
208 * @IEEE80211_RX_AMSDU: a-MSDU packet
209 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
210 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
212 * These are per-frame flags that are attached to a frame in the
213 * @rx_flags field of &struct ieee80211_rx_status.
215 enum ieee80211_packet_rx_flags {
216 IEEE80211_RX_IN_SCAN = BIT(0),
217 IEEE80211_RX_RA_MATCH = BIT(1),
218 IEEE80211_RX_FRAGMENTED = BIT(2),
219 IEEE80211_RX_AMSDU = BIT(3),
220 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
221 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
225 * enum ieee80211_rx_flags - RX data flags
227 * @IEEE80211_RX_CMNTR: received on cooked monitor already
228 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
229 * to cfg80211_report_obss_beacon().
231 * These flags are used across handling multiple interfaces
232 * for a single frame.
234 enum ieee80211_rx_flags {
235 IEEE80211_RX_CMNTR = BIT(0),
236 IEEE80211_RX_BEACON_REPORTED = BIT(1),
239 struct ieee80211_rx_data {
241 struct ieee80211_local *local;
242 struct ieee80211_sub_if_data *sdata;
243 struct sta_info *sta;
244 struct ieee80211_key *key;
249 * Index into sequence numbers array, 0..16
250 * since the last (16) is used for non-QoS,
251 * will be 16 on non-QoS frames.
256 * Index into the security IV/PN arrays, 0..16
257 * since the last (16) is used for CCMP-encrypted
258 * management frames, will be set to 16 on mgmt
259 * frames and 0 on non-QoS frames.
269 int head_len, tail_len;
270 struct rcu_head rcu_head;
273 struct ieee80211_if_ap {
274 struct beacon_data __rcu *beacon;
275 struct sk_buff __rcu *probe_resp;
277 struct list_head vlans;
279 /* yes, this looks ugly, but guarantees that we can later use
281 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
282 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
283 struct sk_buff_head ps_bc_buf;
284 atomic_t num_sta_ps; /* number of stations in PS mode */
285 atomic_t num_sta_authorized; /* number of authorized stations */
290 struct ieee80211_if_wds {
291 struct sta_info *sta;
292 u8 remote_addr[ETH_ALEN];
295 struct ieee80211_if_vlan {
296 struct list_head list;
298 /* used for all tx if the VLAN is configured to 4-addr mode */
299 struct sta_info __rcu *sta;
303 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
304 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
305 __u32 fwded_frames; /* Mesh total forwarded frames */
306 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
307 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
308 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
309 atomic_t estab_plinks;
312 #define PREQ_Q_F_START 0x1
313 #define PREQ_Q_F_REFRESH 0x2
314 struct mesh_preq_queue {
315 struct list_head list;
320 enum ieee80211_work_type {
321 IEEE80211_WORK_ABORT,
322 IEEE80211_WORK_REMAIN_ON_CHANNEL,
323 IEEE80211_WORK_OFFCHANNEL_TX,
327 * enum work_done_result - indicates what to do after work was done
329 * @WORK_DONE_DESTROY: This work item is no longer needed, destroy.
330 * @WORK_DONE_REQUEUE: This work item was reset to be reused, and
331 * should be requeued.
333 enum work_done_result {
338 struct ieee80211_work {
339 struct list_head list;
341 struct rcu_head rcu_head;
343 struct ieee80211_sub_if_data *sdata;
345 enum work_done_result (*done)(struct ieee80211_work *wk,
346 struct sk_buff *skb);
348 struct ieee80211_channel *chan;
349 enum nl80211_channel_type chan_type;
351 unsigned long timeout;
352 enum ieee80211_work_type type;
361 struct sk_buff *frame;
371 /* flags used in struct ieee80211_if_managed.flags */
372 enum ieee80211_sta_flags {
373 IEEE80211_STA_BEACON_POLL = BIT(0),
374 IEEE80211_STA_CONNECTION_POLL = BIT(1),
375 IEEE80211_STA_CONTROL_PORT = BIT(2),
376 IEEE80211_STA_DISABLE_11N = BIT(4),
377 IEEE80211_STA_CSA_RECEIVED = BIT(5),
378 IEEE80211_STA_MFP_ENABLED = BIT(6),
379 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
380 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
381 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
382 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
385 struct ieee80211_mgd_auth_data {
386 struct cfg80211_bss *bss;
387 unsigned long timeout;
389 u16 algorithm, expected_transaction;
391 u8 key[WLAN_KEY_LEN_WEP104];
399 struct ieee80211_mgd_assoc_data {
400 struct cfg80211_bss *bss;
401 const u8 *supp_rates;
402 const u8 *ht_operation_ie;
404 unsigned long timeout;
408 u8 prev_bssid[ETH_ALEN];
409 u8 ssid[IEEE80211_MAX_SSID_LEN];
421 struct ieee80211_if_managed {
422 struct timer_list timer;
423 struct timer_list conn_mon_timer;
424 struct timer_list bcn_mon_timer;
425 struct timer_list chswitch_timer;
426 struct work_struct monitor_work;
427 struct work_struct chswitch_work;
428 struct work_struct beacon_connection_loss_work;
430 unsigned long beacon_timeout;
431 unsigned long probe_timeout;
432 int probe_send_count;
433 bool nullfunc_failed;
436 struct cfg80211_bss *associated;
437 struct ieee80211_mgd_auth_data *auth_data;
438 struct ieee80211_mgd_assoc_data *assoc_data;
444 unsigned long timers_running; /* used for quiesce/restart */
445 bool powersave; /* powersave requested for this iface */
446 bool broken_ap; /* AP is broken -- turn off powersave */
447 enum ieee80211_smps_mode req_smps, /* requested smps mode */
448 ap_smps, /* smps mode AP thinks we're in */
449 driver_smps_mode; /* smps mode request */
451 struct work_struct request_smps_work;
455 bool beacon_crc_valid;
459 IEEE80211_MFP_DISABLED,
460 IEEE80211_MFP_OPTIONAL,
461 IEEE80211_MFP_REQUIRED
462 } mfp; /* management frame protection */
465 * Bitmask of enabled u-apsd queues,
466 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
469 unsigned int uapsd_queues;
472 * Maximum number of buffered frames AP can deliver during a
473 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
474 * Needs a new association to take effect.
476 unsigned int uapsd_max_sp_len;
478 int wmm_last_param_set;
482 /* Signal strength from the last Beacon frame in the current BSS. */
483 int last_beacon_signal;
486 * Weighted average of the signal strength from Beacon frames in the
487 * current BSS. This is in units of 1/16 of the signal unit to maintain
488 * accuracy and to speed up calculations, i.e., the value need to be
489 * divided by 16 to get the actual value.
491 int ave_beacon_signal;
494 * Number of Beacon frames used in ave_beacon_signal. This can be used
495 * to avoid generating less reliable cqm events that would be based
496 * only on couple of received frames.
498 unsigned int count_beacon_signal;
501 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
502 * that triggered a cqm event. 0 indicates that no event has been
503 * generated for the current association.
505 int last_cqm_event_signal;
508 * State variables for keeping track of RSSI of the AP currently
509 * connected to and informing driver when RSSI has gone
510 * below/above a certain threshold.
512 int rssi_min_thold, rssi_max_thold;
513 int last_ave_beacon_signal;
515 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
516 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
519 struct ieee80211_if_ibss {
520 struct timer_list timer;
524 unsigned long last_scan_completed;
536 u8 bssid[ETH_ALEN] __aligned(2);
537 u8 ssid[IEEE80211_MAX_SSID_LEN];
540 struct ieee80211_channel *channel;
541 enum nl80211_channel_type channel_type;
543 unsigned long ibss_join_req;
544 /* probe response/beacon for IBSS */
545 struct sk_buff __rcu *presp;
548 spinlock_t incomplete_lock;
549 struct list_head incomplete_stations;
552 IEEE80211_IBSS_MLME_SEARCH,
553 IEEE80211_IBSS_MLME_JOINED,
558 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
560 * these declarations define the interface, which enables
561 * vendor-specific mesh synchronization
564 struct ieee802_11_elems;
565 struct ieee80211_mesh_sync_ops {
566 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
568 struct ieee80211_mgmt *mgmt,
569 struct ieee802_11_elems *elems,
570 struct ieee80211_rx_status *rx_status);
571 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata);
572 /* add other framework functions here */
575 struct ieee80211_if_mesh {
576 struct timer_list housekeeping_timer;
577 struct timer_list mesh_path_timer;
578 struct timer_list mesh_path_root_timer;
580 unsigned long timers_running;
582 unsigned long wrkq_flags;
584 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
586 /* Active Path Selection Protocol Identifier */
588 /* Active Path Selection Metric Identifier */
590 /* Congestion Control Mode Identifier */
592 /* Synchronization Protocol Identifier */
594 /* Authentication Protocol Identifier */
596 /* Local mesh Sequence Number */
598 /* Last used PREQ ID */
601 /* Timestamp of last SN update */
602 unsigned long last_sn_update;
603 /* Time when it's ok to send next PERR */
604 unsigned long next_perr;
605 /* Timestamp of last PREQ sent */
606 unsigned long last_preq;
607 struct mesh_rmc *rmc;
608 spinlock_t mesh_preq_queue_lock;
609 struct mesh_preq_queue preq_queue;
611 struct mesh_stats mshstats;
612 struct mesh_config mshcfg;
614 bool accepting_plinks;
619 IEEE80211_MESH_SEC_NONE = 0x0,
620 IEEE80211_MESH_SEC_AUTHED = 0x1,
621 IEEE80211_MESH_SEC_SECURED = 0x2,
623 /* Extensible Synchronization Framework */
624 struct ieee80211_mesh_sync_ops *sync_ops;
625 s64 sync_offset_clockdrift_max;
626 spinlock_t sync_offset_lock;
630 #ifdef CONFIG_MAC80211_MESH
631 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
632 do { (msh)->mshstats.name++; } while (0)
634 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
639 * enum ieee80211_sub_if_data_flags - virtual interface flags
641 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
642 * @IEEE80211_SDATA_PROMISC: interface is promisc
643 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
644 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
645 * associated stations and deliver multicast frames both
646 * back to wireless media and to the local net stack.
647 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
648 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
650 enum ieee80211_sub_if_data_flags {
651 IEEE80211_SDATA_ALLMULTI = BIT(0),
652 IEEE80211_SDATA_PROMISC = BIT(1),
653 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
654 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
655 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
656 IEEE80211_SDATA_IN_DRIVER = BIT(5),
660 * enum ieee80211_sdata_state_bits - virtual interface state bits
661 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
662 * mirrors netif_running() but is separate for interface type
663 * change handling while the interface is up
664 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
665 * mode, so queues are stopped
667 enum ieee80211_sdata_state_bits {
669 SDATA_STATE_OFFCHANNEL,
672 struct ieee80211_sub_if_data {
673 struct list_head list;
675 struct wireless_dev wdev;
678 struct list_head key_list;
680 /* count for keys needing tailroom space allocation */
681 int crypto_tx_tailroom_needed_cnt;
683 struct net_device *dev;
684 struct ieee80211_local *local;
690 int drop_unencrypted;
694 /* to detect idle changes */
697 /* Fragment table for host-based reassembly */
698 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
699 unsigned int fragment_next;
701 /* TID bitmap for NoAck policy */
704 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
705 struct ieee80211_key __rcu *default_unicast_key;
706 struct ieee80211_key __rcu *default_multicast_key;
707 struct ieee80211_key __rcu *default_mgmt_key;
710 __be16 control_port_protocol;
711 bool control_port_no_encrypt;
713 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
715 struct work_struct work;
716 struct sk_buff_head skb_queue;
718 bool arp_filter_state;
721 * AP this belongs to: self in AP mode and
722 * corresponding AP in VLAN mode, NULL for
723 * all others (might be needed later in IBSS)
725 struct ieee80211_if_ap *bss;
727 /* bitmap of allowed (non-MCS) rate indexes for rate control */
728 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
729 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
732 struct ieee80211_if_ap ap;
733 struct ieee80211_if_wds wds;
734 struct ieee80211_if_vlan vlan;
735 struct ieee80211_if_managed mgd;
736 struct ieee80211_if_ibss ibss;
737 struct ieee80211_if_mesh mesh;
741 #ifdef CONFIG_MAC80211_DEBUGFS
744 struct dentry *subdir_stations;
745 struct dentry *default_unicast_key;
746 struct dentry *default_multicast_key;
747 struct dentry *default_mgmt_key;
750 /* must be last, dynamically sized area in this! */
751 struct ieee80211_vif vif;
755 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
757 return container_of(p, struct ieee80211_sub_if_data, vif);
760 enum sdata_queue_type {
761 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
762 IEEE80211_SDATA_QUEUE_AGG_START = 1,
763 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
767 IEEE80211_RX_MSG = 1,
768 IEEE80211_TX_STATUS_MSG = 2,
769 IEEE80211_EOSP_MSG = 3,
772 struct skb_eosp_msg_data {
773 u8 sta[ETH_ALEN], iface[ETH_ALEN];
776 enum queue_stop_reason {
777 IEEE80211_QUEUE_STOP_REASON_DRIVER,
778 IEEE80211_QUEUE_STOP_REASON_PS,
779 IEEE80211_QUEUE_STOP_REASON_CSA,
780 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
781 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
782 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
785 #ifdef CONFIG_MAC80211_LEDS
786 struct tpt_led_trigger {
787 struct led_trigger trig;
789 const struct ieee80211_tpt_blink *blink_table;
790 unsigned int blink_table_len;
791 struct timer_list timer;
792 unsigned long prev_traffic;
793 unsigned long tx_bytes, rx_bytes;
794 unsigned int active, want;
800 * mac80211 scan flags - currently active scan mode
802 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
803 * well be on the operating channel
804 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
805 * determine if we are on the operating channel or not
806 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
807 * that the scan completed.
808 * @SCAN_ABORTED: Set for our scan work function when the driver reported
809 * a scan complete for an aborted scan.
819 * enum mac80211_scan_state - scan state machine states
821 * @SCAN_DECISION: Main entry point to the scan state machine, this state
822 * determines if we should keep on scanning or switch back to the
824 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
825 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
826 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
828 * @SCAN_RESUME: Resume the scan and scan the next channel
830 enum mac80211_scan_state {
838 struct ieee80211_local {
839 /* embed the driver visible part.
840 * don't cast (use the static inlines below), but we keep
841 * it first anyway so they become a no-op */
842 struct ieee80211_hw hw;
844 const struct ieee80211_ops *ops;
847 * work stuff, potentially off-channel (in the future)
849 struct list_head work_list;
850 struct timer_list work_timer;
851 struct work_struct work_work;
854 * private workqueue to mac80211. mac80211 makes this accessible
855 * via ieee80211_queue_work()
857 struct workqueue_struct *workqueue;
859 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
860 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
861 spinlock_t queue_stop_reason_lock;
864 int monitors, cooked_mntrs;
865 /* number of interfaces with corresponding FIF_ flags */
866 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
869 unsigned int filter_flags; /* FIF_* */
871 bool wiphy_ciphers_allocated;
873 /* protects the aggregated multicast list and filter calls */
874 spinlock_t filter_lock;
876 /* used for uploading changed mc list */
877 struct work_struct reconfig_filter;
879 /* used to reconfigure hardware SM PS */
880 struct work_struct recalc_smps;
882 /* aggregated multicast list */
883 struct netdev_hw_addr_list mc_list;
885 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
888 * suspended is true if we finished all the suspend _and_ we have
889 * not yet come up from resume. This is to be used by mac80211
890 * to ensure driver sanity during suspend and mac80211's own
891 * sanity. It can eventually be used for WoW as well.
896 * Resuming is true while suspended, but when we're reprogramming the
897 * hardware -- at that time it's allowed to use ieee80211_queue_work()
898 * again even though some other parts of the stack are still suspended
899 * and we still drop received frames to avoid waking the stack.
904 * quiescing is true during the suspend process _only_ to
905 * ease timer cancelling etc.
909 /* device is started */
912 /* wowlan is enabled -- don't reconfig on resume */
915 int tx_headroom; /* required headroom for hardware/radiotap */
917 /* Tasklet and skb queue to process calls from IRQ mode. All frames
918 * added to skb_queue will be processed, but frames in
919 * skb_queue_unreliable may be dropped if the total length of these
920 * queues increases over the limit. */
921 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
922 struct tasklet_struct tasklet;
923 struct sk_buff_head skb_queue;
924 struct sk_buff_head skb_queue_unreliable;
927 * Internal FIFO queue which is shared between multiple rx path
928 * stages. Its main task is to provide a serialization mechanism,
929 * so all rx handlers can enjoy having exclusive access to their
930 * private data structures.
932 struct sk_buff_head rx_skb_queue;
933 bool running_rx_handler; /* protected by rx_skb_queue.lock */
937 * The mutex only protects the list, hash table and
938 * counter, reads are done with RCU.
940 struct mutex sta_mtx;
942 unsigned long num_sta;
943 struct list_head sta_list;
944 struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
945 struct timer_list sta_cleanup;
948 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
949 struct tasklet_struct tx_pending_tasklet;
951 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
953 /* number of interfaces with corresponding IFF_ flags */
954 atomic_t iff_allmultis, iff_promiscs;
956 struct rate_control_ref *rate_ctrl;
958 struct crypto_cipher *wep_tx_tfm;
959 struct crypto_cipher *wep_rx_tfm;
963 struct list_head interfaces;
964 struct mutex iflist_mtx;
967 * Key mutex, protects sdata's key_list and sta_info's
968 * key pointers (write access, they're RCU.)
970 struct mutex key_mtx;
972 /* mutex for scan and work locking */
975 /* Scanning and BSS list */
976 unsigned long scanning;
977 struct cfg80211_ssid scan_ssid;
978 struct cfg80211_scan_request *int_scan_req;
979 struct cfg80211_scan_request *scan_req, *hw_scan_req;
980 struct ieee80211_channel *scan_channel;
981 enum ieee80211_band hw_scan_band;
982 int scan_channel_idx;
986 struct ieee80211_sched_scan_ies sched_scan_ies;
987 struct work_struct sched_scan_stopped_work;
989 unsigned long leave_oper_channel_time;
990 enum mac80211_scan_state next_scan_state;
991 struct delayed_work scan_work;
992 struct ieee80211_sub_if_data *scan_sdata;
993 enum nl80211_channel_type _oper_channel_type;
994 struct ieee80211_channel *oper_channel, *csa_channel;
996 /* Temporary remain-on-channel for off-channel operations */
997 struct ieee80211_channel *tmp_channel;
998 enum nl80211_channel_type tmp_channel_type;
1001 /* dot11CountersTable */
1002 u32 dot11TransmittedFragmentCount;
1003 u32 dot11MulticastTransmittedFrameCount;
1004 u32 dot11FailedCount;
1005 u32 dot11RetryCount;
1006 u32 dot11MultipleRetryCount;
1007 u32 dot11FrameDuplicateCount;
1008 u32 dot11ReceivedFragmentCount;
1009 u32 dot11MulticastReceivedFrameCount;
1010 u32 dot11TransmittedFrameCount;
1012 #ifdef CONFIG_MAC80211_LEDS
1013 int tx_led_counter, rx_led_counter;
1014 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
1015 struct tpt_led_trigger *tpt_led_trigger;
1016 char tx_led_name[32], rx_led_name[32],
1017 assoc_led_name[32], radio_led_name[32];
1020 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1021 /* TX/RX handler statistics */
1022 unsigned int tx_handlers_drop;
1023 unsigned int tx_handlers_queued;
1024 unsigned int tx_handlers_drop_unencrypted;
1025 unsigned int tx_handlers_drop_fragment;
1026 unsigned int tx_handlers_drop_wep;
1027 unsigned int tx_handlers_drop_not_assoc;
1028 unsigned int tx_handlers_drop_unauth_port;
1029 unsigned int rx_handlers_drop;
1030 unsigned int rx_handlers_queued;
1031 unsigned int rx_handlers_drop_nullfunc;
1032 unsigned int rx_handlers_drop_defrag;
1033 unsigned int rx_handlers_drop_short;
1034 unsigned int rx_handlers_drop_passive_scan;
1035 unsigned int tx_expand_skb_head;
1036 unsigned int tx_expand_skb_head_cloned;
1037 unsigned int rx_expand_skb_head;
1038 unsigned int rx_expand_skb_head2;
1039 unsigned int rx_handlers_fragments;
1040 unsigned int tx_status_drop;
1041 #define I802_DEBUG_INC(c) (c)++
1042 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1043 #define I802_DEBUG_INC(c) do { } while (0)
1044 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1047 int total_ps_buffered; /* total number of all buffered unicast and
1048 * multicast packets for power saving stations
1050 unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
1053 bool offchannel_ps_enabled;
1055 * PS can only be enabled when we have exactly one managed
1056 * interface (and monitors) in PS, this then points there.
1058 struct ieee80211_sub_if_data *ps_sdata;
1059 struct work_struct dynamic_ps_enable_work;
1060 struct work_struct dynamic_ps_disable_work;
1061 struct timer_list dynamic_ps_timer;
1062 struct notifier_block network_latency_notifier;
1063 struct notifier_block ifa_notifier;
1066 * The dynamic ps timeout configured from user space via WEXT -
1067 * this will override whatever chosen by mac80211 internally.
1069 int dynamic_ps_forced_timeout;
1070 int dynamic_ps_user_timeout;
1071 bool disable_dynamic_ps;
1073 int user_power_level; /* in dBm */
1074 int power_constr_level; /* in dBm */
1076 enum ieee80211_smps_mode smps_mode;
1078 struct work_struct restart_work;
1080 #ifdef CONFIG_MAC80211_DEBUGFS
1081 struct local_debugfsdentries {
1082 struct dentry *rcdir;
1083 struct dentry *keys;
1087 struct ieee80211_channel *hw_roc_channel;
1088 struct net_device *hw_roc_dev;
1089 struct sk_buff *hw_roc_skb, *hw_roc_skb_for_status;
1090 struct work_struct hw_roc_start, hw_roc_done;
1091 enum nl80211_channel_type hw_roc_channel_type;
1092 unsigned int hw_roc_duration;
1096 struct idr ack_status_frames;
1097 spinlock_t ack_status_lock;
1099 /* dummy netdev for use w/ NAPI */
1100 struct net_device napi_dev;
1102 struct napi_struct napi;
1105 static inline struct ieee80211_sub_if_data *
1106 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1108 return netdev_priv(dev);
1111 /* this struct represents 802.11n's RA/TID combination */
1112 struct ieee80211_ra_tid {
1117 /* Parsed Information Elements */
1118 struct ieee802_11_elems {
1122 /* pointers to IEs */
1128 struct ieee80211_tim_ie *tim;
1137 struct ieee80211_ht_cap *ht_cap_elem;
1138 struct ieee80211_ht_operation *ht_operation;
1139 struct ieee80211_meshconf_ie *mesh_config;
1145 struct ieee80211_rann_ie *rann;
1148 u8 *pwr_constr_elem;
1149 u8 *quiet_elem; /* first quite element */
1152 /* length of them, respectively */
1164 u8 ext_supp_rates_len;
1172 u8 ch_switch_elem_len;
1173 u8 country_elem_len;
1174 u8 pwr_constr_elem_len;
1176 u8 num_of_quiet_elem; /* can be more the one */
1179 /* whether a parse error occurred while retrieving these elements */
1183 static inline struct ieee80211_local *hw_to_local(
1184 struct ieee80211_hw *hw)
1186 return container_of(hw, struct ieee80211_local, hw);
1190 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1192 return compare_ether_addr(raddr, addr) == 0 ||
1193 is_broadcast_ether_addr(raddr);
1197 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1198 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1199 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1201 void ieee80211_configure_filter(struct ieee80211_local *local);
1202 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1205 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1206 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1207 struct cfg80211_auth_request *req);
1208 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1209 struct cfg80211_assoc_request *req);
1210 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1211 struct cfg80211_deauth_request *req);
1212 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1213 struct cfg80211_disassoc_request *req);
1214 void ieee80211_send_pspoll(struct ieee80211_local *local,
1215 struct ieee80211_sub_if_data *sdata);
1216 void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
1217 int ieee80211_max_network_latency(struct notifier_block *nb,
1218 unsigned long data, void *dummy);
1219 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1220 void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
1221 struct ieee80211_channel_sw_ie *sw_elem,
1222 struct ieee80211_bss *bss,
1224 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
1225 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1226 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1227 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1228 struct sk_buff *skb);
1229 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1230 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1231 void ieee80211_mgd_teardown(struct ieee80211_sub_if_data *sdata);
1234 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1235 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1236 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1237 const u8 *bssid, const u8 *addr, u32 supp_rates);
1238 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1239 struct cfg80211_ibss_params *params);
1240 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1241 void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
1242 void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
1243 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1244 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1245 struct sk_buff *skb);
1248 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1249 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1250 struct sk_buff *skb);
1252 /* scan/BSS handling */
1253 void ieee80211_scan_work(struct work_struct *work);
1254 int ieee80211_request_internal_scan(struct ieee80211_sub_if_data *sdata,
1255 const u8 *ssid, u8 ssid_len,
1256 struct ieee80211_channel *chan);
1257 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1258 struct cfg80211_scan_request *req);
1259 void ieee80211_scan_cancel(struct ieee80211_local *local);
1261 ieee80211_scan_rx(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
1263 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1264 struct ieee80211_bss *
1265 ieee80211_bss_info_update(struct ieee80211_local *local,
1266 struct ieee80211_rx_status *rx_status,
1267 struct ieee80211_mgmt *mgmt,
1269 struct ieee802_11_elems *elems,
1270 struct ieee80211_channel *channel,
1272 struct ieee80211_bss *
1273 ieee80211_rx_bss_get(struct ieee80211_local *local, u8 *bssid, int freq,
1274 u8 *ssid, u8 ssid_len);
1275 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1276 struct ieee80211_bss *bss);
1278 /* scheduled scan handling */
1279 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1280 struct cfg80211_sched_scan_request *req);
1281 int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
1282 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1284 /* off-channel helpers */
1285 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local,
1286 bool offchannel_ps_enable);
1287 void ieee80211_offchannel_return(struct ieee80211_local *local,
1288 bool offchannel_ps_disable);
1289 void ieee80211_hw_roc_setup(struct ieee80211_local *local);
1291 /* interface handling */
1292 int ieee80211_iface_init(void);
1293 void ieee80211_iface_exit(void);
1294 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1295 struct net_device **new_dev, enum nl80211_iftype type,
1296 struct vif_params *params);
1297 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1298 enum nl80211_iftype type);
1299 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1300 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1301 u32 __ieee80211_recalc_idle(struct ieee80211_local *local);
1302 void ieee80211_recalc_idle(struct ieee80211_local *local);
1303 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1306 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1308 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1312 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1313 void ieee80211_tx_pending(unsigned long data);
1314 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1315 struct net_device *dev);
1316 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1317 struct net_device *dev);
1320 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1321 struct ieee80211_sta_ht_cap *ht_cap);
1322 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1323 struct ieee80211_supported_band *sband,
1324 struct ieee80211_ht_cap *ht_cap_ie,
1325 struct ieee80211_sta_ht_cap *ht_cap);
1326 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1327 const u8 *da, u16 tid,
1328 u16 initiator, u16 reason_code);
1329 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1330 enum ieee80211_smps_mode smps, const u8 *da,
1332 void ieee80211_request_smps_work(struct work_struct *work);
1334 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1335 u16 initiator, u16 reason, bool stop);
1336 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1337 u16 initiator, u16 reason, bool stop);
1338 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, bool tx);
1339 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1340 struct sta_info *sta,
1341 struct ieee80211_mgmt *mgmt, size_t len);
1342 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1343 struct sta_info *sta,
1344 struct ieee80211_mgmt *mgmt,
1346 void ieee80211_process_addba_request(struct ieee80211_local *local,
1347 struct sta_info *sta,
1348 struct ieee80211_mgmt *mgmt,
1351 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1352 enum ieee80211_back_parties initiator,
1354 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1355 enum ieee80211_back_parties initiator,
1357 void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1358 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
1359 void ieee80211_ba_session_work(struct work_struct *work);
1360 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1361 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1363 /* Spectrum management */
1364 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1365 struct ieee80211_mgmt *mgmt,
1368 /* Suspend/resume and hw reconfiguration */
1369 int ieee80211_reconfig(struct ieee80211_local *local);
1370 void ieee80211_stop_device(struct ieee80211_local *local);
1373 int __ieee80211_suspend(struct ieee80211_hw *hw,
1374 struct cfg80211_wowlan *wowlan);
1376 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1378 struct ieee80211_local *local = hw_to_local(hw);
1380 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
1381 "%s: resume with hardware scan still in progress\n",
1382 wiphy_name(hw->wiphy));
1384 return ieee80211_reconfig(hw_to_local(hw));
1387 static inline int __ieee80211_suspend(struct ieee80211_hw *hw,
1388 struct cfg80211_wowlan *wowlan)
1393 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1399 /* utility functions/constants */
1400 extern void *mac80211_wiphy_privid; /* for wiphy privid */
1401 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
1402 enum nl80211_iftype type);
1403 int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
1404 int rate, int erp, int short_preamble);
1405 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
1406 struct ieee80211_hdr *hdr, const u8 *tsc,
1408 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1410 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb);
1412 void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1413 struct sk_buff *skb, int tid);
1414 static void inline ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
1415 struct sk_buff *skb)
1417 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1418 ieee80211_tx_skb_tid(sdata, skb, 7);
1421 void ieee802_11_parse_elems(u8 *start, size_t len,
1422 struct ieee802_11_elems *elems);
1423 u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
1424 struct ieee802_11_elems *elems,
1425 u64 filter, u32 crc);
1426 u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
1427 enum ieee80211_band band);
1429 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1430 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1431 void ieee80211_dynamic_ps_timer(unsigned long data);
1432 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1433 struct ieee80211_sub_if_data *sdata,
1435 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1436 struct ieee80211_hdr *hdr);
1437 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
1438 struct ieee80211_hdr *hdr, bool ack);
1439 void ieee80211_beacon_connection_loss_work(struct work_struct *work);
1441 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1442 enum queue_stop_reason reason);
1443 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1444 enum queue_stop_reason reason);
1445 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1446 enum queue_stop_reason reason);
1447 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1448 enum queue_stop_reason reason);
1449 void ieee80211_add_pending_skb(struct ieee80211_local *local,
1450 struct sk_buff *skb);
1451 void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
1452 struct sk_buff_head *skbs,
1453 void (*fn)(void *data), void *data);
1454 static inline void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1455 struct sk_buff_head *skbs)
1457 ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL);
1460 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1461 u16 transaction, u16 auth_alg,
1462 u8 *extra, size_t extra_len, const u8 *bssid,
1463 const u8 *da, const u8 *key, u8 key_len, u8 key_idx);
1464 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1465 const u8 *ie, size_t ie_len,
1466 enum ieee80211_band band, u32 rate_mask,
1468 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
1469 u8 *dst, u32 ratemask,
1470 const u8 *ssid, size_t ssid_len,
1471 const u8 *ie, size_t ie_len,
1473 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
1474 const u8 *ssid, size_t ssid_len,
1475 const u8 *ie, size_t ie_len,
1476 u32 ratemask, bool directed, bool no_cck);
1478 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1479 const size_t supp_rates_len,
1480 const u8 *supp_rates);
1481 u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1482 struct ieee802_11_elems *elems,
1483 enum ieee80211_band band);
1484 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1485 enum ieee80211_smps_mode smps_mode);
1486 void ieee80211_recalc_smps(struct ieee80211_local *local);
1488 size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
1489 const u8 *ids, int n_ids, size_t offset);
1490 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
1491 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1493 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1494 struct ieee80211_channel *channel,
1495 enum nl80211_channel_type channel_type);
1497 /* internal work items */
1498 void ieee80211_work_init(struct ieee80211_local *local);
1499 void ieee80211_add_work(struct ieee80211_work *wk);
1500 void free_work(struct ieee80211_work *wk);
1501 void ieee80211_work_purge(struct ieee80211_sub_if_data *sdata);
1502 int ieee80211_wk_remain_on_channel(struct ieee80211_sub_if_data *sdata,
1503 struct ieee80211_channel *chan,
1504 enum nl80211_channel_type channel_type,
1505 unsigned int duration, u64 *cookie);
1506 int ieee80211_wk_cancel_remain_on_channel(
1507 struct ieee80211_sub_if_data *sdata, u64 cookie);
1509 /* channel management */
1510 enum ieee80211_chan_mode {
1511 CHAN_MODE_UNDEFINED,
1516 enum ieee80211_chan_mode
1517 ieee80211_get_channel_mode(struct ieee80211_local *local,
1518 struct ieee80211_sub_if_data *ignore);
1519 bool ieee80211_set_channel_type(struct ieee80211_local *local,
1520 struct ieee80211_sub_if_data *sdata,
1521 enum nl80211_channel_type chantype);
1522 enum nl80211_channel_type
1523 ieee80211_ht_oper_to_channel_type(struct ieee80211_ht_operation *ht_oper);
1525 #ifdef CONFIG_MAC80211_NOINLINE
1526 #define debug_noinline noinline
1528 #define debug_noinline
1531 #endif /* IEEE80211_I_H */