2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005, Devicescape Software, Inc.
4 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
5 * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
15 #include <linux/kernel.h>
16 #include <linux/device.h>
17 #include <linux/if_ether.h>
18 #include <linux/interrupt.h>
19 #include <linux/list.h>
20 #include <linux/netdevice.h>
21 #include <linux/skbuff.h>
22 #include <linux/workqueue.h>
23 #include <linux/types.h>
24 #include <linux/spinlock.h>
25 #include <linux/etherdevice.h>
26 #include <linux/leds.h>
27 #include <linux/idr.h>
28 #include <net/ieee80211_radiotap.h>
29 #include <net/cfg80211.h>
30 #include <net/mac80211.h>
35 struct ieee80211_local;
37 /* Maximum number of broadcast/multicast frames to buffer when some of the
38 * associated stations are using power saving. */
39 #define AP_MAX_BC_BUFFER 128
41 /* Maximum number of frames buffered to all STAs, including multicast frames.
42 * Note: increasing this limit increases the potential memory requirement. Each
43 * frame can be up to about 2 kB long. */
44 #define TOTAL_MAX_TX_BUFFER 512
46 /* Required encryption head and tailroom */
47 #define IEEE80211_ENCRYPT_HEADROOM 8
48 #define IEEE80211_ENCRYPT_TAILROOM 18
50 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent
51 * reception of at least three fragmented frames. This limit can be increased
52 * by changing this define, at the cost of slower frame reassembly and
53 * increased memory use (about 2 kB of RAM per entry). */
54 #define IEEE80211_FRAGMENT_MAX 4
56 #define TU_TO_JIFFIES(x) (usecs_to_jiffies((x) * 1024))
57 #define TU_TO_EXP_TIME(x) (jiffies + TU_TO_JIFFIES(x))
59 /* power level hasn't been configured (or set to automatic) */
60 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN
63 * Some APs experience problems when working with U-APSD. Decrease the
64 * probability of that happening by using legacy mode for all ACs but VO.
65 * The AP that caused us trouble was a Cisco 4410N. It ignores our
66 * setting, and always treats non-VO ACs as legacy.
68 #define IEEE80211_DEFAULT_UAPSD_QUEUES \
69 IEEE80211_WMM_IE_STA_QOSINFO_AC_VO
71 #define IEEE80211_DEFAULT_MAX_SP_LEN \
72 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
74 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
76 struct ieee80211_fragment_entry {
77 unsigned long first_frag_time;
79 unsigned int rx_queue;
80 unsigned int last_frag;
81 unsigned int extra_len;
82 struct sk_buff_head skb_list;
83 int ccmp; /* Whether fragments were encrypted with CCMP */
84 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */
88 struct ieee80211_bss {
89 u32 device_ts_beacon, device_ts_presp;
94 #define IEEE80211_MAX_SUPP_RATES 32
95 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
96 size_t supp_rates_len;
99 * During association, we save an ERP value from a probe response so
100 * that we can feed ERP info to the driver when handling the
101 * association completes. these fields probably won't be up-to-date
102 * otherwise, you probably don't want to use them.
107 /* Keep track of the corruption of the last beacon/probe response. */
110 /* Keep track of what bits of information we have valid info for. */
115 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
116 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
117 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
119 * These are bss flags that are attached to a bss in the
120 * @corrupt_data field of &struct ieee80211_bss.
122 enum ieee80211_bss_corrupt_data_flags {
123 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
124 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
128 * enum ieee80211_valid_data_flags - BSS valid data flags
129 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
130 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
131 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
133 * These are bss flags that are attached to a bss in the
134 * @valid_data field of &struct ieee80211_bss. They show which parts
135 * of the data structure were recieved as a result of an un-corrupted
136 * beacon/probe response.
138 enum ieee80211_bss_valid_data_flags {
139 IEEE80211_BSS_VALID_WMM = BIT(1),
140 IEEE80211_BSS_VALID_RATES = BIT(2),
141 IEEE80211_BSS_VALID_ERP = BIT(3)
144 typedef unsigned __bitwise__ ieee80211_tx_result;
145 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
146 #define TX_DROP ((__force ieee80211_tx_result) 1u)
147 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
149 #define IEEE80211_TX_UNICAST BIT(1)
150 #define IEEE80211_TX_PS_BUFFERED BIT(2)
152 struct ieee80211_tx_data {
154 struct sk_buff_head skbs;
155 struct ieee80211_local *local;
156 struct ieee80211_sub_if_data *sdata;
157 struct sta_info *sta;
158 struct ieee80211_key *key;
164 typedef unsigned __bitwise__ ieee80211_rx_result;
165 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
166 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
167 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
168 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
171 * enum ieee80211_packet_rx_flags - packet RX flags
172 * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
173 * (incl. multicast frames)
174 * @IEEE80211_RX_FRAGMENTED: fragmented frame
175 * @IEEE80211_RX_AMSDU: a-MSDU packet
176 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
177 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
179 * These are per-frame flags that are attached to a frame in the
180 * @rx_flags field of &struct ieee80211_rx_status.
182 enum ieee80211_packet_rx_flags {
183 IEEE80211_RX_RA_MATCH = BIT(1),
184 IEEE80211_RX_FRAGMENTED = BIT(2),
185 IEEE80211_RX_AMSDU = BIT(3),
186 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
187 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
191 * enum ieee80211_rx_flags - RX data flags
193 * @IEEE80211_RX_CMNTR: received on cooked monitor already
194 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
195 * to cfg80211_report_obss_beacon().
197 * These flags are used across handling multiple interfaces
198 * for a single frame.
200 enum ieee80211_rx_flags {
201 IEEE80211_RX_CMNTR = BIT(0),
202 IEEE80211_RX_BEACON_REPORTED = BIT(1),
205 struct ieee80211_rx_data {
207 struct ieee80211_local *local;
208 struct ieee80211_sub_if_data *sdata;
209 struct sta_info *sta;
210 struct ieee80211_key *key;
215 * Index into sequence numbers array, 0..16
216 * since the last (16) is used for non-QoS,
217 * will be 16 on non-QoS frames.
222 * Index into the security IV/PN arrays, 0..16
223 * since the last (16) is used for CCMP-encrypted
224 * management frames, will be set to 16 on mgmt
225 * frames and 0 on non-QoS frames.
235 int head_len, tail_len;
236 struct rcu_head rcu_head;
240 struct rcu_head rcu_head;
246 /* yes, this looks ugly, but guarantees that we can later use
248 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
249 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
250 struct sk_buff_head bc_buf;
251 atomic_t num_sta_ps; /* number of stations in PS mode */
256 struct ieee80211_if_ap {
257 struct beacon_data __rcu *beacon;
258 struct probe_resp __rcu *probe_resp;
260 struct list_head vlans;
263 atomic_t num_mcast_sta; /* number of stations receiving multicast */
266 struct ieee80211_if_wds {
267 struct sta_info *sta;
268 u8 remote_addr[ETH_ALEN];
271 struct ieee80211_if_vlan {
272 struct list_head list;
274 /* used for all tx if the VLAN is configured to 4-addr mode */
275 struct sta_info __rcu *sta;
279 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
280 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
281 __u32 fwded_frames; /* Mesh total forwarded frames */
282 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
283 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
284 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
287 #define PREQ_Q_F_START 0x1
288 #define PREQ_Q_F_REFRESH 0x2
289 struct mesh_preq_queue {
290 struct list_head list;
296 #define IEEE80211_ROC_MIN_LEFT 1
298 #define IEEE80211_ROC_MIN_LEFT (HZ/100)
301 struct ieee80211_roc_work {
302 struct list_head list;
303 struct list_head dependents;
305 struct delayed_work work;
307 struct ieee80211_sub_if_data *sdata;
309 struct ieee80211_channel *chan;
311 bool started, abort, hw_begun, notified;
314 unsigned long hw_start_time;
316 u32 duration, req_duration;
317 struct sk_buff *frame;
318 u64 cookie, mgmt_tx_cookie;
321 /* flags used in struct ieee80211_if_managed.flags */
322 enum ieee80211_sta_flags {
323 IEEE80211_STA_BEACON_POLL = BIT(0),
324 IEEE80211_STA_CONNECTION_POLL = BIT(1),
325 IEEE80211_STA_CONTROL_PORT = BIT(2),
326 IEEE80211_STA_DISABLE_HT = BIT(4),
327 IEEE80211_STA_CSA_RECEIVED = BIT(5),
328 IEEE80211_STA_MFP_ENABLED = BIT(6),
329 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
330 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
331 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
332 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
333 IEEE80211_STA_DISABLE_VHT = BIT(11),
334 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
335 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
338 struct ieee80211_mgd_auth_data {
339 struct cfg80211_bss *bss;
340 unsigned long timeout;
342 u16 algorithm, expected_transaction;
344 u8 key[WLAN_KEY_LEN_WEP104];
347 bool timeout_started;
349 u16 sae_trans, sae_status;
354 struct ieee80211_mgd_assoc_data {
355 struct cfg80211_bss *bss;
356 const u8 *supp_rates;
358 unsigned long timeout;
362 u8 prev_bssid[ETH_ALEN];
363 u8 ssid[IEEE80211_MAX_SSID_LEN];
367 bool have_beacon, need_beacon;
369 bool timeout_started;
373 struct ieee80211_vht_cap ap_vht_cap;
379 struct ieee80211_if_managed {
380 struct timer_list timer;
381 struct timer_list conn_mon_timer;
382 struct timer_list bcn_mon_timer;
383 struct timer_list chswitch_timer;
384 struct work_struct monitor_work;
385 struct work_struct chswitch_work;
386 struct work_struct beacon_connection_loss_work;
387 struct work_struct csa_connection_drop_work;
389 unsigned long beacon_timeout;
390 unsigned long probe_timeout;
391 int probe_send_count;
392 bool nullfunc_failed;
393 bool connection_loss;
396 struct cfg80211_bss *associated;
397 struct ieee80211_mgd_auth_data *auth_data;
398 struct ieee80211_mgd_assoc_data *assoc_data;
404 unsigned long timers_running; /* used for quiesce/restart */
405 bool powersave; /* powersave requested for this iface */
406 bool broken_ap; /* AP is broken -- turn off powersave */
408 enum ieee80211_smps_mode req_smps, /* requested smps mode */
409 driver_smps_mode; /* smps mode request */
411 struct work_struct request_smps_work;
415 bool beacon_crc_valid;
419 bool status_received;
423 IEEE80211_MFP_DISABLED,
424 IEEE80211_MFP_OPTIONAL,
425 IEEE80211_MFP_REQUIRED
426 } mfp; /* management frame protection */
429 * Bitmask of enabled u-apsd queues,
430 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
433 unsigned int uapsd_queues;
436 * Maximum number of buffered frames AP can deliver during a
437 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
438 * Needs a new association to take effect.
440 unsigned int uapsd_max_sp_len;
442 int wmm_last_param_set;
448 /* Signal strength from the last Beacon frame in the current BSS. */
449 int last_beacon_signal;
452 * Weighted average of the signal strength from Beacon frames in the
453 * current BSS. This is in units of 1/16 of the signal unit to maintain
454 * accuracy and to speed up calculations, i.e., the value need to be
455 * divided by 16 to get the actual value.
457 int ave_beacon_signal;
460 * Number of Beacon frames used in ave_beacon_signal. This can be used
461 * to avoid generating less reliable cqm events that would be based
462 * only on couple of received frames.
464 unsigned int count_beacon_signal;
467 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
468 * that triggered a cqm event. 0 indicates that no event has been
469 * generated for the current association.
471 int last_cqm_event_signal;
474 * State variables for keeping track of RSSI of the AP currently
475 * connected to and informing driver when RSSI has gone
476 * below/above a certain threshold.
478 int rssi_min_thold, rssi_max_thold;
479 int last_ave_beacon_signal;
481 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
482 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
485 struct ieee80211_if_ibss {
486 struct timer_list timer;
490 unsigned long last_scan_completed;
501 unsigned int auth_frame_registrations;
503 u8 bssid[ETH_ALEN] __aligned(2);
504 u8 ssid[IEEE80211_MAX_SSID_LEN];
507 struct ieee80211_channel *channel;
508 enum nl80211_channel_type channel_type;
510 unsigned long ibss_join_req;
511 /* probe response/beacon for IBSS */
512 struct sk_buff __rcu *presp;
515 spinlock_t incomplete_lock;
516 struct list_head incomplete_stations;
519 IEEE80211_IBSS_MLME_SEARCH,
520 IEEE80211_IBSS_MLME_JOINED,
525 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
527 * these declarations define the interface, which enables
528 * vendor-specific mesh synchronization
531 struct ieee802_11_elems;
532 struct ieee80211_mesh_sync_ops {
533 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
535 struct ieee80211_mgmt *mgmt,
536 struct ieee802_11_elems *elems,
537 struct ieee80211_rx_status *rx_status);
538 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata);
539 /* add other framework functions here */
542 struct ieee80211_if_mesh {
543 struct timer_list housekeeping_timer;
544 struct timer_list mesh_path_timer;
545 struct timer_list mesh_path_root_timer;
547 unsigned long timers_running;
549 unsigned long wrkq_flags;
551 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
553 /* Active Path Selection Protocol Identifier */
555 /* Active Path Selection Metric Identifier */
557 /* Congestion Control Mode Identifier */
559 /* Synchronization Protocol Identifier */
561 /* Authentication Protocol Identifier */
563 /* Local mesh Sequence Number */
565 /* Last used PREQ ID */
568 /* Timestamp of last SN update */
569 unsigned long last_sn_update;
570 /* Time when it's ok to send next PERR */
571 unsigned long next_perr;
572 /* Timestamp of last PREQ sent */
573 unsigned long last_preq;
574 struct mesh_rmc *rmc;
575 spinlock_t mesh_preq_queue_lock;
576 struct mesh_preq_queue preq_queue;
578 struct mesh_stats mshstats;
579 struct mesh_config mshcfg;
580 atomic_t estab_plinks;
582 bool accepting_plinks;
584 struct beacon_data __rcu *beacon;
585 /* just protects beacon updates for now */
590 IEEE80211_MESH_SEC_NONE = 0x0,
591 IEEE80211_MESH_SEC_AUTHED = 0x1,
592 IEEE80211_MESH_SEC_SECURED = 0x2,
594 /* Extensible Synchronization Framework */
595 const struct ieee80211_mesh_sync_ops *sync_ops;
596 s64 sync_offset_clockdrift_max;
597 spinlock_t sync_offset_lock;
599 /* mesh power save */
600 enum nl80211_mesh_power_mode nonpeer_pm;
601 int ps_peers_light_sleep;
602 int ps_peers_deep_sleep;
606 #ifdef CONFIG_MAC80211_MESH
607 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
608 do { (msh)->mshstats.name++; } while (0)
610 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
615 * enum ieee80211_sub_if_data_flags - virtual interface flags
617 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
618 * @IEEE80211_SDATA_PROMISC: interface is promisc
619 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
620 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
621 * associated stations and deliver multicast frames both
622 * back to wireless media and to the local net stack.
623 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
624 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
626 enum ieee80211_sub_if_data_flags {
627 IEEE80211_SDATA_ALLMULTI = BIT(0),
628 IEEE80211_SDATA_PROMISC = BIT(1),
629 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
630 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
631 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
632 IEEE80211_SDATA_IN_DRIVER = BIT(5),
636 * enum ieee80211_sdata_state_bits - virtual interface state bits
637 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
638 * mirrors netif_running() but is separate for interface type
639 * change handling while the interface is up
640 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
641 * mode, so queues are stopped
642 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
643 * to offchannel, reset when offchannel returns
645 enum ieee80211_sdata_state_bits {
647 SDATA_STATE_OFFCHANNEL,
648 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
652 * enum ieee80211_chanctx_mode - channel context configuration mode
654 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
655 * multiple interfaces
656 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
657 * only by a single interface. This can be used for example for
658 * non-fixed channel IBSS.
660 enum ieee80211_chanctx_mode {
661 IEEE80211_CHANCTX_SHARED,
662 IEEE80211_CHANCTX_EXCLUSIVE
665 struct ieee80211_chanctx {
666 struct list_head list;
667 struct rcu_head rcu_head;
669 enum ieee80211_chanctx_mode mode;
673 struct ieee80211_chanctx_conf conf;
676 struct ieee80211_sub_if_data {
677 struct list_head list;
679 struct wireless_dev wdev;
682 struct list_head key_list;
684 /* count for keys needing tailroom space allocation */
685 int crypto_tx_tailroom_needed_cnt;
687 struct net_device *dev;
688 struct ieee80211_local *local;
694 int drop_unencrypted;
698 /* Fragment table for host-based reassembly */
699 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
700 unsigned int fragment_next;
702 /* TID bitmap for NoAck policy */
705 /* bit field of ACM bits (BIT(802.1D tag)) */
708 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
709 struct ieee80211_key __rcu *default_unicast_key;
710 struct ieee80211_key __rcu *default_multicast_key;
711 struct ieee80211_key __rcu *default_mgmt_key;
714 __be16 control_port_protocol;
715 bool control_port_no_encrypt;
717 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
719 /* used to reconfigure hardware SM PS */
720 struct work_struct recalc_smps;
722 struct work_struct work;
723 struct sk_buff_head skb_queue;
726 enum ieee80211_smps_mode smps_mode;
728 int user_power_level; /* in dBm */
729 int ap_power_level; /* in dBm */
732 struct delayed_work dfs_cac_timer_work;
735 * AP this belongs to: self in AP mode and
736 * corresponding AP in VLAN mode, NULL for
737 * all others (might be needed later in IBSS)
739 struct ieee80211_if_ap *bss;
741 /* bitmap of allowed (non-MCS) rate indexes for rate control */
742 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
743 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
746 struct ieee80211_if_ap ap;
747 struct ieee80211_if_wds wds;
748 struct ieee80211_if_vlan vlan;
749 struct ieee80211_if_managed mgd;
750 struct ieee80211_if_ibss ibss;
751 struct ieee80211_if_mesh mesh;
755 spinlock_t cleanup_stations_lock;
756 struct list_head cleanup_stations;
757 struct work_struct cleanup_stations_wk;
759 #ifdef CONFIG_MAC80211_DEBUGFS
762 struct dentry *subdir_stations;
763 struct dentry *default_unicast_key;
764 struct dentry *default_multicast_key;
765 struct dentry *default_mgmt_key;
770 struct ieee80211_bss_conf suspend_bss_conf;
773 /* must be last, dynamically sized area in this! */
774 struct ieee80211_vif vif;
778 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
780 return container_of(p, struct ieee80211_sub_if_data, vif);
783 static inline enum ieee80211_band
784 ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
786 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
787 struct ieee80211_chanctx_conf *chanctx_conf;
790 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
791 if (!WARN_ON(!chanctx_conf))
792 band = chanctx_conf->def.chan->band;
798 enum sdata_queue_type {
799 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
800 IEEE80211_SDATA_QUEUE_AGG_START = 1,
801 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
805 IEEE80211_RX_MSG = 1,
806 IEEE80211_TX_STATUS_MSG = 2,
807 IEEE80211_EOSP_MSG = 3,
810 struct skb_eosp_msg_data {
811 u8 sta[ETH_ALEN], iface[ETH_ALEN];
814 enum queue_stop_reason {
815 IEEE80211_QUEUE_STOP_REASON_DRIVER,
816 IEEE80211_QUEUE_STOP_REASON_PS,
817 IEEE80211_QUEUE_STOP_REASON_CSA,
818 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
819 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
820 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
821 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
824 #ifdef CONFIG_MAC80211_LEDS
825 struct tpt_led_trigger {
826 struct led_trigger trig;
828 const struct ieee80211_tpt_blink *blink_table;
829 unsigned int blink_table_len;
830 struct timer_list timer;
831 unsigned long prev_traffic;
832 unsigned long tx_bytes, rx_bytes;
833 unsigned int active, want;
839 * mac80211 scan flags - currently active scan mode
841 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
842 * well be on the operating channel
843 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
844 * determine if we are on the operating channel or not
845 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
846 * channel. This should not interrupt normal traffic.
847 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
848 * that the scan completed.
849 * @SCAN_ABORTED: Set for our scan work function when the driver reported
850 * a scan complete for an aborted scan.
855 SCAN_ONCHANNEL_SCANNING,
861 * enum mac80211_scan_state - scan state machine states
863 * @SCAN_DECISION: Main entry point to the scan state machine, this state
864 * determines if we should keep on scanning or switch back to the
866 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
867 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
868 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
870 * @SCAN_RESUME: Resume the scan and scan the next channel
871 * @SCAN_ABORT: Abort the scan and go back to operating channel
873 enum mac80211_scan_state {
882 struct ieee80211_local {
883 /* embed the driver visible part.
884 * don't cast (use the static inlines below), but we keep
885 * it first anyway so they become a no-op */
886 struct ieee80211_hw hw;
888 const struct ieee80211_ops *ops;
891 * private workqueue to mac80211. mac80211 makes this accessible
892 * via ieee80211_queue_work()
894 struct workqueue_struct *workqueue;
896 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
897 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
898 spinlock_t queue_stop_reason_lock;
901 int monitors, cooked_mntrs;
902 /* number of interfaces with corresponding FIF_ flags */
903 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
906 unsigned int filter_flags; /* FIF_* */
908 bool wiphy_ciphers_allocated;
912 /* protects the aggregated multicast list and filter calls */
913 spinlock_t filter_lock;
915 /* used for uploading changed mc list */
916 struct work_struct reconfig_filter;
918 /* aggregated multicast list */
919 struct netdev_hw_addr_list mc_list;
921 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
924 * suspended is true if we finished all the suspend _and_ we have
925 * not yet come up from resume. This is to be used by mac80211
926 * to ensure driver sanity during suspend and mac80211's own
927 * sanity. It can eventually be used for WoW as well.
932 * Resuming is true while suspended, but when we're reprogramming the
933 * hardware -- at that time it's allowed to use ieee80211_queue_work()
934 * again even though some other parts of the stack are still suspended
935 * and we still drop received frames to avoid waking the stack.
940 * quiescing is true during the suspend process _only_ to
941 * ease timer cancelling etc.
945 /* device is started */
948 /* device is during a HW reconfig */
951 /* wowlan is enabled -- don't reconfig on resume */
954 /* DFS/radar detection is enabled */
955 bool radar_detect_enabled;
956 struct work_struct radar_detected_work;
958 /* number of RX chains the hardware has */
961 int tx_headroom; /* required headroom for hardware/radiotap */
963 /* Tasklet and skb queue to process calls from IRQ mode. All frames
964 * added to skb_queue will be processed, but frames in
965 * skb_queue_unreliable may be dropped if the total length of these
966 * queues increases over the limit. */
967 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
968 struct tasklet_struct tasklet;
969 struct sk_buff_head skb_queue;
970 struct sk_buff_head skb_queue_unreliable;
972 spinlock_t rx_path_lock;
976 * The mutex only protects the list, hash table and
977 * counter, reads are done with RCU.
979 struct mutex sta_mtx;
981 unsigned long num_sta;
982 struct list_head sta_list;
983 struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
984 struct timer_list sta_cleanup;
987 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
988 struct tasklet_struct tx_pending_tasklet;
990 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
992 /* number of interfaces with corresponding IFF_ flags */
993 atomic_t iff_allmultis, iff_promiscs;
995 struct rate_control_ref *rate_ctrl;
997 struct crypto_cipher *wep_tx_tfm;
998 struct crypto_cipher *wep_rx_tfm;
1002 struct list_head interfaces;
1003 struct mutex iflist_mtx;
1006 * Key mutex, protects sdata's key_list and sta_info's
1007 * key pointers (write access, they're RCU.)
1009 struct mutex key_mtx;
1011 /* mutex for scan and work locking */
1014 /* Scanning and BSS list */
1015 unsigned long scanning;
1016 struct cfg80211_ssid scan_ssid;
1017 struct cfg80211_scan_request *int_scan_req;
1018 struct cfg80211_scan_request *scan_req, *hw_scan_req;
1019 struct ieee80211_channel *scan_channel;
1020 enum ieee80211_band hw_scan_band;
1021 int scan_channel_idx;
1023 int hw_scan_ies_bufsize;
1025 struct work_struct sched_scan_stopped_work;
1026 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1028 unsigned long leave_oper_channel_time;
1029 enum mac80211_scan_state next_scan_state;
1030 struct delayed_work scan_work;
1031 struct ieee80211_sub_if_data __rcu *scan_sdata;
1032 struct ieee80211_channel *csa_channel;
1033 /* For backward compatibility only -- do not use */
1034 struct ieee80211_channel *_oper_channel;
1035 enum nl80211_channel_type _oper_channel_type;
1037 /* Temporary remain-on-channel for off-channel operations */
1038 struct ieee80211_channel *tmp_channel;
1040 /* channel contexts */
1041 struct list_head chanctx_list;
1042 struct mutex chanctx_mtx;
1045 /* dot11CountersTable */
1046 u32 dot11TransmittedFragmentCount;
1047 u32 dot11MulticastTransmittedFrameCount;
1048 u32 dot11FailedCount;
1049 u32 dot11RetryCount;
1050 u32 dot11MultipleRetryCount;
1051 u32 dot11FrameDuplicateCount;
1052 u32 dot11ReceivedFragmentCount;
1053 u32 dot11MulticastReceivedFrameCount;
1054 u32 dot11TransmittedFrameCount;
1056 #ifdef CONFIG_MAC80211_LEDS
1057 int tx_led_counter, rx_led_counter;
1058 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
1059 struct tpt_led_trigger *tpt_led_trigger;
1060 char tx_led_name[32], rx_led_name[32],
1061 assoc_led_name[32], radio_led_name[32];
1064 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1065 /* TX/RX handler statistics */
1066 unsigned int tx_handlers_drop;
1067 unsigned int tx_handlers_queued;
1068 unsigned int tx_handlers_drop_unencrypted;
1069 unsigned int tx_handlers_drop_fragment;
1070 unsigned int tx_handlers_drop_wep;
1071 unsigned int tx_handlers_drop_not_assoc;
1072 unsigned int tx_handlers_drop_unauth_port;
1073 unsigned int rx_handlers_drop;
1074 unsigned int rx_handlers_queued;
1075 unsigned int rx_handlers_drop_nullfunc;
1076 unsigned int rx_handlers_drop_defrag;
1077 unsigned int rx_handlers_drop_short;
1078 unsigned int tx_expand_skb_head;
1079 unsigned int tx_expand_skb_head_cloned;
1080 unsigned int rx_expand_skb_head;
1081 unsigned int rx_expand_skb_head2;
1082 unsigned int rx_handlers_fragments;
1083 unsigned int tx_status_drop;
1084 #define I802_DEBUG_INC(c) (c)++
1085 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1086 #define I802_DEBUG_INC(c) do { } while (0)
1087 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1090 int total_ps_buffered; /* total number of all buffered unicast and
1091 * multicast packets for power saving stations
1095 bool offchannel_ps_enabled;
1097 * PS can only be enabled when we have exactly one managed
1098 * interface (and monitors) in PS, this then points there.
1100 struct ieee80211_sub_if_data *ps_sdata;
1101 struct work_struct dynamic_ps_enable_work;
1102 struct work_struct dynamic_ps_disable_work;
1103 struct timer_list dynamic_ps_timer;
1104 struct notifier_block network_latency_notifier;
1105 struct notifier_block ifa_notifier;
1106 struct notifier_block ifa6_notifier;
1109 * The dynamic ps timeout configured from user space via WEXT -
1110 * this will override whatever chosen by mac80211 internally.
1112 int dynamic_ps_forced_timeout;
1114 int user_power_level; /* in dBm, for all interfaces */
1116 enum ieee80211_smps_mode smps_mode;
1118 struct work_struct restart_work;
1120 #ifdef CONFIG_MAC80211_DEBUGFS
1121 struct local_debugfsdentries {
1122 struct dentry *rcdir;
1123 struct dentry *keys;
1128 * Remain-on-channel support
1130 struct list_head roc_list;
1131 struct work_struct hw_roc_start, hw_roc_done;
1132 unsigned long hw_roc_start_time;
1133 u64 roc_cookie_counter;
1135 struct idr ack_status_frames;
1136 spinlock_t ack_status_lock;
1138 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1140 /* dummy netdev for use w/ NAPI */
1141 struct net_device napi_dev;
1143 struct napi_struct napi;
1145 /* virtual monitor interface */
1146 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1147 struct cfg80211_chan_def monitor_chandef;
1150 static inline struct ieee80211_sub_if_data *
1151 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1153 return netdev_priv(dev);
1156 static inline struct ieee80211_sub_if_data *
1157 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1159 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1162 /* this struct represents 802.11n's RA/TID combination */
1163 struct ieee80211_ra_tid {
1168 /* Parsed Information Elements */
1169 struct ieee802_11_elems {
1173 /* pointers to IEs */
1175 const u8 *supp_rates;
1176 const u8 *fh_params;
1177 const u8 *ds_params;
1178 const u8 *cf_params;
1179 const struct ieee80211_tim_ie *tim;
1180 const u8 *ibss_params;
1181 const u8 *challenge;
1184 const u8 *ext_supp_rates;
1186 const u8 *wmm_param;
1187 const struct ieee80211_ht_cap *ht_cap_elem;
1188 const struct ieee80211_ht_operation *ht_operation;
1189 const struct ieee80211_vht_cap *vht_cap_elem;
1190 const struct ieee80211_vht_operation *vht_operation;
1191 const struct ieee80211_meshconf_ie *mesh_config;
1194 const __le16 *awake_window;
1198 const struct ieee80211_rann_ie *rann;
1199 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1200 const u8 *country_elem;
1201 const u8 *pwr_constr_elem;
1202 const u8 *quiet_elem; /* first quite element */
1203 const u8 *timeout_int;
1204 const u8 *opmode_notif;
1206 /* length of them, respectively */
1217 u8 ext_supp_rates_len;
1225 u8 country_elem_len;
1227 u8 num_of_quiet_elem; /* can be more the one */
1230 /* whether a parse error occurred while retrieving these elements */
1234 static inline struct ieee80211_local *hw_to_local(
1235 struct ieee80211_hw *hw)
1237 return container_of(hw, struct ieee80211_local, hw);
1241 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1243 return ether_addr_equal(raddr, addr) ||
1244 is_broadcast_ether_addr(raddr);
1248 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1250 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1251 status->flag & RX_FLAG_MACTIME_END);
1252 return status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END);
1255 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1256 struct ieee80211_rx_status *status,
1257 unsigned int mpdu_len,
1258 unsigned int mpdu_offset);
1259 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1260 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1261 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1263 void ieee80211_configure_filter(struct ieee80211_local *local);
1264 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1267 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1268 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1269 struct cfg80211_auth_request *req);
1270 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1271 struct cfg80211_assoc_request *req);
1272 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1273 struct cfg80211_deauth_request *req);
1274 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1275 struct cfg80211_disassoc_request *req);
1276 void ieee80211_send_pspoll(struct ieee80211_local *local,
1277 struct ieee80211_sub_if_data *sdata);
1278 void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
1279 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1280 int ieee80211_max_network_latency(struct notifier_block *nb,
1281 unsigned long data, void *dummy);
1282 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1284 ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
1285 const struct ieee80211_channel_sw_ie *sw_elem,
1286 struct ieee80211_bss *bss, u64 timestamp);
1287 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
1288 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1289 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1290 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1291 struct sk_buff *skb);
1292 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1293 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1294 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1295 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1296 __le16 fc, bool acked);
1299 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1300 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1301 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1302 const u8 *bssid, const u8 *addr, u32 supp_rates);
1303 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1304 struct cfg80211_ibss_params *params);
1305 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1306 void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
1307 void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
1308 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1309 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1310 struct sk_buff *skb);
1313 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1314 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1315 struct sk_buff *skb);
1317 /* scan/BSS handling */
1318 void ieee80211_scan_work(struct work_struct *work);
1319 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1320 const u8 *ssid, u8 ssid_len,
1321 struct ieee80211_channel *chan);
1322 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1323 struct cfg80211_scan_request *req);
1324 void ieee80211_scan_cancel(struct ieee80211_local *local);
1325 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1326 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1328 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1329 struct ieee80211_bss *
1330 ieee80211_bss_info_update(struct ieee80211_local *local,
1331 struct ieee80211_rx_status *rx_status,
1332 struct ieee80211_mgmt *mgmt,
1334 struct ieee802_11_elems *elems,
1335 struct ieee80211_channel *channel);
1336 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1337 struct ieee80211_bss *bss);
1339 /* scheduled scan handling */
1340 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1341 struct cfg80211_sched_scan_request *req);
1342 int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
1343 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1345 /* off-channel helpers */
1346 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1347 void ieee80211_offchannel_return(struct ieee80211_local *local);
1348 void ieee80211_roc_setup(struct ieee80211_local *local);
1349 void ieee80211_start_next_roc(struct ieee80211_local *local);
1350 void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata);
1351 void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc, bool free);
1352 void ieee80211_sw_roc_work(struct work_struct *work);
1353 void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
1355 /* interface handling */
1356 int ieee80211_iface_init(void);
1357 void ieee80211_iface_exit(void);
1358 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1359 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1360 struct vif_params *params);
1361 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1362 enum nl80211_iftype type);
1363 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1364 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1365 u32 ieee80211_idle_off(struct ieee80211_local *local);
1366 void ieee80211_recalc_idle(struct ieee80211_local *local);
1367 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1369 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1370 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
1372 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1373 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1375 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1377 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1381 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1382 void ieee80211_tx_pending(unsigned long data);
1383 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1384 struct net_device *dev);
1385 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1386 struct net_device *dev);
1387 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1388 struct sk_buff_head *skbs);
1391 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1392 struct ieee80211_sta_ht_cap *ht_cap);
1393 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1394 struct ieee80211_supported_band *sband,
1395 const struct ieee80211_ht_cap *ht_cap_ie,
1396 struct sta_info *sta);
1397 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1398 const u8 *da, u16 tid,
1399 u16 initiator, u16 reason_code);
1400 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1401 enum ieee80211_smps_mode smps, const u8 *da,
1403 void ieee80211_request_smps_work(struct work_struct *work);
1405 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1406 u16 initiator, u16 reason, bool stop);
1407 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1408 u16 initiator, u16 reason, bool stop);
1409 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1410 enum ieee80211_agg_stop_reason reason);
1411 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1412 struct sta_info *sta,
1413 struct ieee80211_mgmt *mgmt, size_t len);
1414 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1415 struct sta_info *sta,
1416 struct ieee80211_mgmt *mgmt,
1418 void ieee80211_process_addba_request(struct ieee80211_local *local,
1419 struct sta_info *sta,
1420 struct ieee80211_mgmt *mgmt,
1423 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1424 enum ieee80211_agg_stop_reason reason);
1425 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1426 enum ieee80211_agg_stop_reason reason);
1427 void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1428 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
1429 void ieee80211_ba_session_work(struct work_struct *work);
1430 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1431 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1433 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1437 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1438 struct ieee80211_supported_band *sband,
1439 const struct ieee80211_vht_cap *vht_cap_ie,
1440 struct sta_info *sta);
1441 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
1442 void ieee80211_sta_set_rx_nss(struct sta_info *sta);
1443 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1444 struct sta_info *sta, u8 opmode,
1445 enum ieee80211_band band, bool nss_only);
1447 /* Spectrum management */
1448 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1449 struct ieee80211_mgmt *mgmt,
1452 /* Suspend/resume and hw reconfiguration */
1453 int ieee80211_reconfig(struct ieee80211_local *local);
1454 void ieee80211_stop_device(struct ieee80211_local *local);
1456 int __ieee80211_suspend(struct ieee80211_hw *hw,
1457 struct cfg80211_wowlan *wowlan);
1459 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1461 struct ieee80211_local *local = hw_to_local(hw);
1463 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
1464 "%s: resume with hardware scan still in progress\n",
1465 wiphy_name(hw->wiphy));
1467 return ieee80211_reconfig(hw_to_local(hw));
1470 /* utility functions/constants */
1471 extern void *mac80211_wiphy_privid; /* for wiphy privid */
1472 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
1473 enum nl80211_iftype type);
1474 int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
1475 int rate, int erp, int short_preamble);
1476 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
1477 struct ieee80211_hdr *hdr, const u8 *tsc,
1479 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1481 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
1482 enum ieee80211_band band);
1484 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1485 struct sk_buff *skb, int tid,
1486 enum ieee80211_band band);
1489 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1490 struct sk_buff *skb, int tid,
1491 enum ieee80211_band band)
1494 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1498 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1499 struct sk_buff *skb, int tid)
1501 struct ieee80211_chanctx_conf *chanctx_conf;
1504 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1505 if (WARN_ON(!chanctx_conf)) {
1511 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
1512 chanctx_conf->def.chan->band);
1516 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
1517 struct sk_buff *skb)
1519 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1520 ieee80211_tx_skb_tid(sdata, skb, 7);
1523 void ieee802_11_parse_elems(u8 *start, size_t len,
1524 struct ieee802_11_elems *elems);
1525 u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
1526 struct ieee802_11_elems *elems,
1527 u64 filter, u32 crc);
1528 u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
1529 enum ieee80211_band band);
1531 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1532 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1533 void ieee80211_dynamic_ps_timer(unsigned long data);
1534 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1535 struct ieee80211_sub_if_data *sdata,
1537 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1538 struct ieee80211_hdr *hdr);
1539 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
1540 struct ieee80211_hdr *hdr, bool ack);
1542 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1543 enum queue_stop_reason reason);
1544 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1545 enum queue_stop_reason reason);
1546 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1547 enum queue_stop_reason reason);
1548 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1549 enum queue_stop_reason reason);
1550 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
1551 void ieee80211_add_pending_skb(struct ieee80211_local *local,
1552 struct sk_buff *skb);
1553 void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
1554 struct sk_buff_head *skbs,
1555 void (*fn)(void *data), void *data);
1556 static inline void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1557 struct sk_buff_head *skbs)
1559 ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL);
1562 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1563 u16 transaction, u16 auth_alg, u16 status,
1564 const u8 *extra, size_t extra_len, const u8 *bssid,
1565 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
1567 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
1568 const u8 *bssid, u16 stype, u16 reason,
1569 bool send_frame, u8 *frame_buf);
1570 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1571 size_t buffer_len, const u8 *ie, size_t ie_len,
1572 enum ieee80211_band band, u32 rate_mask,
1574 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
1575 u8 *dst, u32 ratemask,
1576 struct ieee80211_channel *chan,
1577 const u8 *ssid, size_t ssid_len,
1578 const u8 *ie, size_t ie_len,
1580 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
1581 const u8 *ssid, size_t ssid_len,
1582 const u8 *ie, size_t ie_len,
1583 u32 ratemask, bool directed, u32 tx_flags,
1584 struct ieee80211_channel *channel, bool scan);
1586 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1587 const size_t supp_rates_len,
1588 const u8 *supp_rates);
1589 u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1590 struct ieee802_11_elems *elems,
1591 enum ieee80211_band band, u32 *basic_rates);
1592 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1593 enum ieee80211_smps_mode smps_mode);
1594 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
1596 size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
1597 const u8 *ids, int n_ids, size_t offset);
1598 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
1599 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1601 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1602 const struct cfg80211_chan_def *chandef,
1604 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1606 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
1607 struct sk_buff *skb, bool need_basic,
1608 enum ieee80211_band band);
1609 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
1610 struct sk_buff *skb, bool need_basic,
1611 enum ieee80211_band band);
1613 /* channel management */
1614 void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
1615 const struct ieee80211_ht_operation *ht_oper,
1616 struct cfg80211_chan_def *chandef);
1619 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
1620 const struct cfg80211_chan_def *chandef,
1621 enum ieee80211_chanctx_mode mode);
1623 ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
1624 const struct cfg80211_chan_def *chandef,
1626 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
1627 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
1628 void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
1631 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
1632 struct ieee80211_chanctx *chanctx);
1633 void ieee80211_recalc_radar_chanctx(struct ieee80211_local *local,
1634 struct ieee80211_chanctx *chanctx);
1636 void ieee80211_dfs_cac_timer(unsigned long data);
1637 void ieee80211_dfs_cac_timer_work(struct work_struct *work);
1638 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
1639 void ieee80211_dfs_radar_detected_work(struct work_struct *work);
1641 #ifdef CONFIG_MAC80211_NOINLINE
1642 #define debug_noinline noinline
1644 #define debug_noinline
1647 #endif /* IEEE80211_I_H */