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 /* don't want to look up all the time */
91 u8 ssid[IEEE80211_MAX_SSID_LEN];
98 unsigned long last_probe_resp;
100 #ifdef CONFIG_MAC80211_MESH
106 #define IEEE80211_MAX_SUPP_RATES 32
107 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
108 size_t supp_rates_len;
111 * During association, we save an ERP value from a probe response so
112 * that we can feed ERP info to the driver when handling the
113 * association completes. these fields probably won't be up-to-date
114 * otherwise, you probably don't want to use them.
119 /* Keep track of the corruption of the last beacon/probe response. */
122 /* Keep track of what bits of information we have valid info for. */
127 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
128 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
129 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
131 * These are bss flags that are attached to a bss in the
132 * @corrupt_data field of &struct ieee80211_bss.
134 enum ieee80211_bss_corrupt_data_flags {
135 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
136 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
140 * enum ieee80211_valid_data_flags - BSS valid data flags
141 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
142 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
143 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
145 * These are bss flags that are attached to a bss in the
146 * @valid_data field of &struct ieee80211_bss. They show which parts
147 * of the data structure were recieved as a result of an un-corrupted
148 * beacon/probe response.
150 enum ieee80211_bss_valid_data_flags {
151 IEEE80211_BSS_VALID_WMM = BIT(1),
152 IEEE80211_BSS_VALID_RATES = BIT(2),
153 IEEE80211_BSS_VALID_ERP = BIT(3)
156 static inline u8 *bss_mesh_cfg(struct ieee80211_bss *bss)
158 #ifdef CONFIG_MAC80211_MESH
159 return bss->mesh_cfg;
164 static inline u8 *bss_mesh_id(struct ieee80211_bss *bss)
166 #ifdef CONFIG_MAC80211_MESH
172 static inline u8 bss_mesh_id_len(struct ieee80211_bss *bss)
174 #ifdef CONFIG_MAC80211_MESH
175 return bss->mesh_id_len;
181 typedef unsigned __bitwise__ ieee80211_tx_result;
182 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
183 #define TX_DROP ((__force ieee80211_tx_result) 1u)
184 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
186 #define IEEE80211_TX_UNICAST BIT(1)
187 #define IEEE80211_TX_PS_BUFFERED BIT(2)
189 struct ieee80211_tx_data {
191 struct sk_buff_head skbs;
192 struct ieee80211_local *local;
193 struct ieee80211_sub_if_data *sdata;
194 struct sta_info *sta;
195 struct ieee80211_key *key;
201 typedef unsigned __bitwise__ ieee80211_rx_result;
202 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
203 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
204 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
205 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
208 * enum ieee80211_packet_rx_flags - packet RX flags
209 * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed
210 * (incl. multicast frames)
211 * @IEEE80211_RX_FRAGMENTED: fragmented frame
212 * @IEEE80211_RX_AMSDU: a-MSDU packet
213 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
214 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
216 * These are per-frame flags that are attached to a frame in the
217 * @rx_flags field of &struct ieee80211_rx_status.
219 enum ieee80211_packet_rx_flags {
220 IEEE80211_RX_RA_MATCH = BIT(1),
221 IEEE80211_RX_FRAGMENTED = BIT(2),
222 IEEE80211_RX_AMSDU = BIT(3),
223 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
224 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
228 * enum ieee80211_rx_flags - RX data flags
230 * @IEEE80211_RX_CMNTR: received on cooked monitor already
231 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
232 * to cfg80211_report_obss_beacon().
234 * These flags are used across handling multiple interfaces
235 * for a single frame.
237 enum ieee80211_rx_flags {
238 IEEE80211_RX_CMNTR = BIT(0),
239 IEEE80211_RX_BEACON_REPORTED = BIT(1),
242 struct ieee80211_rx_data {
244 struct ieee80211_local *local;
245 struct ieee80211_sub_if_data *sdata;
246 struct sta_info *sta;
247 struct ieee80211_key *key;
252 * Index into sequence numbers array, 0..16
253 * since the last (16) is used for non-QoS,
254 * will be 16 on non-QoS frames.
259 * Index into the security IV/PN arrays, 0..16
260 * since the last (16) is used for CCMP-encrypted
261 * management frames, will be set to 16 on mgmt
262 * frames and 0 on non-QoS frames.
272 int head_len, tail_len;
273 struct rcu_head rcu_head;
277 struct rcu_head rcu_head;
283 /* yes, this looks ugly, but guarantees that we can later use
285 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
286 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
287 struct sk_buff_head bc_buf;
288 atomic_t num_sta_ps; /* number of stations in PS mode */
293 struct ieee80211_if_ap {
294 struct beacon_data __rcu *beacon;
295 struct probe_resp __rcu *probe_resp;
297 struct list_head vlans;
300 atomic_t num_mcast_sta; /* number of stations receiving multicast */
303 struct ieee80211_if_wds {
304 struct sta_info *sta;
305 u8 remote_addr[ETH_ALEN];
308 struct ieee80211_if_vlan {
309 struct list_head list;
311 /* used for all tx if the VLAN is configured to 4-addr mode */
312 struct sta_info __rcu *sta;
316 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
317 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
318 __u32 fwded_frames; /* Mesh total forwarded frames */
319 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
320 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
321 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
324 #define PREQ_Q_F_START 0x1
325 #define PREQ_Q_F_REFRESH 0x2
326 struct mesh_preq_queue {
327 struct list_head list;
333 #define IEEE80211_ROC_MIN_LEFT 1
335 #define IEEE80211_ROC_MIN_LEFT (HZ/100)
338 struct ieee80211_roc_work {
339 struct list_head list;
340 struct list_head dependents;
342 struct delayed_work work;
344 struct ieee80211_sub_if_data *sdata;
346 struct ieee80211_channel *chan;
348 bool started, abort, hw_begun, notified;
350 unsigned long hw_start_time;
352 u32 duration, req_duration;
353 struct sk_buff *frame;
354 u64 cookie, mgmt_tx_cookie;
357 /* flags used in struct ieee80211_if_managed.flags */
358 enum ieee80211_sta_flags {
359 IEEE80211_STA_BEACON_POLL = BIT(0),
360 IEEE80211_STA_CONNECTION_POLL = BIT(1),
361 IEEE80211_STA_CONTROL_PORT = BIT(2),
362 IEEE80211_STA_DISABLE_HT = BIT(4),
363 IEEE80211_STA_CSA_RECEIVED = BIT(5),
364 IEEE80211_STA_MFP_ENABLED = BIT(6),
365 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
366 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
367 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
368 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
369 IEEE80211_STA_DISABLE_VHT = BIT(11),
370 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
371 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
374 struct ieee80211_mgd_auth_data {
375 struct cfg80211_bss *bss;
376 unsigned long timeout;
378 u16 algorithm, expected_transaction;
380 u8 key[WLAN_KEY_LEN_WEP104];
384 u16 sae_trans, sae_status;
389 struct ieee80211_mgd_assoc_data {
390 struct cfg80211_bss *bss;
391 const u8 *supp_rates;
393 unsigned long timeout;
397 u8 prev_bssid[ETH_ALEN];
398 u8 ssid[IEEE80211_MAX_SSID_LEN];
408 struct ieee80211_vht_cap ap_vht_cap;
414 struct ieee80211_if_managed {
415 struct timer_list timer;
416 struct timer_list conn_mon_timer;
417 struct timer_list bcn_mon_timer;
418 struct timer_list chswitch_timer;
419 struct work_struct monitor_work;
420 struct work_struct chswitch_work;
421 struct work_struct beacon_connection_loss_work;
422 struct work_struct csa_connection_drop_work;
424 unsigned long beacon_timeout;
425 unsigned long probe_timeout;
426 int probe_send_count;
427 bool nullfunc_failed;
430 struct cfg80211_bss *associated;
431 struct ieee80211_mgd_auth_data *auth_data;
432 struct ieee80211_mgd_assoc_data *assoc_data;
438 unsigned long timers_running; /* used for quiesce/restart */
439 bool powersave; /* powersave requested for this iface */
440 bool broken_ap; /* AP is broken -- turn off powersave */
442 enum ieee80211_smps_mode req_smps, /* requested smps mode */
443 driver_smps_mode; /* smps mode request */
445 struct work_struct request_smps_work;
449 bool beacon_crc_valid;
453 IEEE80211_MFP_DISABLED,
454 IEEE80211_MFP_OPTIONAL,
455 IEEE80211_MFP_REQUIRED
456 } mfp; /* management frame protection */
459 * Bitmask of enabled u-apsd queues,
460 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
463 unsigned int uapsd_queues;
466 * Maximum number of buffered frames AP can deliver during a
467 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
468 * Needs a new association to take effect.
470 unsigned int uapsd_max_sp_len;
472 int wmm_last_param_set;
478 /* Signal strength from the last Beacon frame in the current BSS. */
479 int last_beacon_signal;
482 * Weighted average of the signal strength from Beacon frames in the
483 * current BSS. This is in units of 1/16 of the signal unit to maintain
484 * accuracy and to speed up calculations, i.e., the value need to be
485 * divided by 16 to get the actual value.
487 int ave_beacon_signal;
490 * Number of Beacon frames used in ave_beacon_signal. This can be used
491 * to avoid generating less reliable cqm events that would be based
492 * only on couple of received frames.
494 unsigned int count_beacon_signal;
497 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
498 * that triggered a cqm event. 0 indicates that no event has been
499 * generated for the current association.
501 int last_cqm_event_signal;
504 * State variables for keeping track of RSSI of the AP currently
505 * connected to and informing driver when RSSI has gone
506 * below/above a certain threshold.
508 int rssi_min_thold, rssi_max_thold;
509 int last_ave_beacon_signal;
511 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
512 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
515 struct ieee80211_if_ibss {
516 struct timer_list timer;
520 unsigned long last_scan_completed;
531 unsigned int auth_frame_registrations;
533 u8 bssid[ETH_ALEN] __aligned(2);
534 u8 ssid[IEEE80211_MAX_SSID_LEN];
537 struct ieee80211_channel *channel;
538 enum nl80211_channel_type channel_type;
540 unsigned long ibss_join_req;
541 /* probe response/beacon for IBSS */
542 struct sk_buff __rcu *presp;
545 spinlock_t incomplete_lock;
546 struct list_head incomplete_stations;
549 IEEE80211_IBSS_MLME_SEARCH,
550 IEEE80211_IBSS_MLME_JOINED,
555 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
557 * these declarations define the interface, which enables
558 * vendor-specific mesh synchronization
561 struct ieee802_11_elems;
562 struct ieee80211_mesh_sync_ops {
563 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
565 struct ieee80211_mgmt *mgmt,
566 struct ieee802_11_elems *elems,
567 struct ieee80211_rx_status *rx_status);
568 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata);
569 /* add other framework functions here */
572 struct ieee80211_if_mesh {
573 struct timer_list housekeeping_timer;
574 struct timer_list mesh_path_timer;
575 struct timer_list mesh_path_root_timer;
577 unsigned long timers_running;
579 unsigned long wrkq_flags;
581 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
583 /* Active Path Selection Protocol Identifier */
585 /* Active Path Selection Metric Identifier */
587 /* Congestion Control Mode Identifier */
589 /* Synchronization Protocol Identifier */
591 /* Authentication Protocol Identifier */
593 /* Local mesh Sequence Number */
595 /* Last used PREQ ID */
598 /* Timestamp of last SN update */
599 unsigned long last_sn_update;
600 /* Time when it's ok to send next PERR */
601 unsigned long next_perr;
602 /* Timestamp of last PREQ sent */
603 unsigned long last_preq;
604 struct mesh_rmc *rmc;
605 spinlock_t mesh_preq_queue_lock;
606 struct mesh_preq_queue preq_queue;
608 struct mesh_stats mshstats;
609 struct mesh_config mshcfg;
610 atomic_t estab_plinks;
612 bool accepting_plinks;
617 IEEE80211_MESH_SEC_NONE = 0x0,
618 IEEE80211_MESH_SEC_AUTHED = 0x1,
619 IEEE80211_MESH_SEC_SECURED = 0x2,
621 /* Extensible Synchronization Framework */
622 const struct ieee80211_mesh_sync_ops *sync_ops;
623 s64 sync_offset_clockdrift_max;
624 spinlock_t sync_offset_lock;
628 #ifdef CONFIG_MAC80211_MESH
629 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
630 do { (msh)->mshstats.name++; } while (0)
632 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
637 * enum ieee80211_sub_if_data_flags - virtual interface flags
639 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
640 * @IEEE80211_SDATA_PROMISC: interface is promisc
641 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
642 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
643 * associated stations and deliver multicast frames both
644 * back to wireless media and to the local net stack.
645 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
646 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
648 enum ieee80211_sub_if_data_flags {
649 IEEE80211_SDATA_ALLMULTI = BIT(0),
650 IEEE80211_SDATA_PROMISC = BIT(1),
651 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
652 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
653 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
654 IEEE80211_SDATA_IN_DRIVER = BIT(5),
658 * enum ieee80211_sdata_state_bits - virtual interface state bits
659 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
660 * mirrors netif_running() but is separate for interface type
661 * change handling while the interface is up
662 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
663 * mode, so queues are stopped
664 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
665 * to offchannel, reset when offchannel returns
667 enum ieee80211_sdata_state_bits {
669 SDATA_STATE_OFFCHANNEL,
670 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
674 * enum ieee80211_chanctx_mode - channel context configuration mode
676 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
677 * multiple interfaces
678 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
679 * only by a single interface. This can be used for example for
680 * non-fixed channel IBSS.
682 enum ieee80211_chanctx_mode {
683 IEEE80211_CHANCTX_SHARED,
684 IEEE80211_CHANCTX_EXCLUSIVE
687 struct ieee80211_chanctx {
688 struct list_head list;
689 struct rcu_head rcu_head;
691 enum ieee80211_chanctx_mode mode;
695 struct ieee80211_chanctx_conf conf;
698 struct ieee80211_sub_if_data {
699 struct list_head list;
701 struct wireless_dev wdev;
704 struct list_head key_list;
706 /* count for keys needing tailroom space allocation */
707 int crypto_tx_tailroom_needed_cnt;
709 struct net_device *dev;
710 struct ieee80211_local *local;
716 int drop_unencrypted;
720 /* to detect idle changes */
723 /* Fragment table for host-based reassembly */
724 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
725 unsigned int fragment_next;
727 /* TID bitmap for NoAck policy */
730 /* bit field of ACM bits (BIT(802.1D tag)) */
733 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
734 struct ieee80211_key __rcu *default_unicast_key;
735 struct ieee80211_key __rcu *default_multicast_key;
736 struct ieee80211_key __rcu *default_mgmt_key;
739 __be16 control_port_protocol;
740 bool control_port_no_encrypt;
742 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
744 /* used to reconfigure hardware SM PS */
745 struct work_struct recalc_smps;
747 struct work_struct work;
748 struct sk_buff_head skb_queue;
751 enum ieee80211_smps_mode smps_mode;
753 int user_power_level; /* in dBm */
754 int ap_power_level; /* in dBm */
757 * AP this belongs to: self in AP mode and
758 * corresponding AP in VLAN mode, NULL for
759 * all others (might be needed later in IBSS)
761 struct ieee80211_if_ap *bss;
763 /* bitmap of allowed (non-MCS) rate indexes for rate control */
764 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
765 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
768 struct ieee80211_if_ap ap;
769 struct ieee80211_if_wds wds;
770 struct ieee80211_if_vlan vlan;
771 struct ieee80211_if_managed mgd;
772 struct ieee80211_if_ibss ibss;
773 struct ieee80211_if_mesh mesh;
777 spinlock_t cleanup_stations_lock;
778 struct list_head cleanup_stations;
779 struct work_struct cleanup_stations_wk;
781 #ifdef CONFIG_MAC80211_DEBUGFS
784 struct dentry *subdir_stations;
785 struct dentry *default_unicast_key;
786 struct dentry *default_multicast_key;
787 struct dentry *default_mgmt_key;
792 struct ieee80211_bss_conf suspend_bss_conf;
795 /* must be last, dynamically sized area in this! */
796 struct ieee80211_vif vif;
800 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
802 return container_of(p, struct ieee80211_sub_if_data, vif);
805 static inline enum ieee80211_band
806 ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
808 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
809 struct ieee80211_chanctx_conf *chanctx_conf;
812 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
813 if (!WARN_ON(!chanctx_conf))
814 band = chanctx_conf->def.chan->band;
820 enum sdata_queue_type {
821 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
822 IEEE80211_SDATA_QUEUE_AGG_START = 1,
823 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
827 IEEE80211_RX_MSG = 1,
828 IEEE80211_TX_STATUS_MSG = 2,
829 IEEE80211_EOSP_MSG = 3,
832 struct skb_eosp_msg_data {
833 u8 sta[ETH_ALEN], iface[ETH_ALEN];
836 enum queue_stop_reason {
837 IEEE80211_QUEUE_STOP_REASON_DRIVER,
838 IEEE80211_QUEUE_STOP_REASON_PS,
839 IEEE80211_QUEUE_STOP_REASON_CSA,
840 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
841 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
842 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
845 #ifdef CONFIG_MAC80211_LEDS
846 struct tpt_led_trigger {
847 struct led_trigger trig;
849 const struct ieee80211_tpt_blink *blink_table;
850 unsigned int blink_table_len;
851 struct timer_list timer;
852 unsigned long prev_traffic;
853 unsigned long tx_bytes, rx_bytes;
854 unsigned int active, want;
860 * mac80211 scan flags - currently active scan mode
862 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
863 * well be on the operating channel
864 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
865 * determine if we are on the operating channel or not
866 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
867 * channel. This should not interrupt normal traffic.
868 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
869 * that the scan completed.
870 * @SCAN_ABORTED: Set for our scan work function when the driver reported
871 * a scan complete for an aborted scan.
876 SCAN_ONCHANNEL_SCANNING,
882 * enum mac80211_scan_state - scan state machine states
884 * @SCAN_DECISION: Main entry point to the scan state machine, this state
885 * determines if we should keep on scanning or switch back to the
887 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
888 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
889 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
891 * @SCAN_RESUME: Resume the scan and scan the next channel
892 * @SCAN_ABORT: Abort the scan and go back to operating channel
894 enum mac80211_scan_state {
903 struct ieee80211_local {
904 /* embed the driver visible part.
905 * don't cast (use the static inlines below), but we keep
906 * it first anyway so they become a no-op */
907 struct ieee80211_hw hw;
909 const struct ieee80211_ops *ops;
912 * private workqueue to mac80211. mac80211 makes this accessible
913 * via ieee80211_queue_work()
915 struct workqueue_struct *workqueue;
917 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
918 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
919 spinlock_t queue_stop_reason_lock;
922 int monitors, cooked_mntrs;
923 /* number of interfaces with corresponding FIF_ flags */
924 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
927 unsigned int filter_flags; /* FIF_* */
929 bool wiphy_ciphers_allocated;
933 /* protects the aggregated multicast list and filter calls */
934 spinlock_t filter_lock;
936 /* used for uploading changed mc list */
937 struct work_struct reconfig_filter;
939 /* aggregated multicast list */
940 struct netdev_hw_addr_list mc_list;
942 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
945 * suspended is true if we finished all the suspend _and_ we have
946 * not yet come up from resume. This is to be used by mac80211
947 * to ensure driver sanity during suspend and mac80211's own
948 * sanity. It can eventually be used for WoW as well.
953 * Resuming is true while suspended, but when we're reprogramming the
954 * hardware -- at that time it's allowed to use ieee80211_queue_work()
955 * again even though some other parts of the stack are still suspended
956 * and we still drop received frames to avoid waking the stack.
961 * quiescing is true during the suspend process _only_ to
962 * ease timer cancelling etc.
966 /* device is started */
969 /* device is during a HW reconfig */
972 /* wowlan is enabled -- don't reconfig on resume */
975 /* number of RX chains the hardware has */
978 int tx_headroom; /* required headroom for hardware/radiotap */
980 /* Tasklet and skb queue to process calls from IRQ mode. All frames
981 * added to skb_queue will be processed, but frames in
982 * skb_queue_unreliable may be dropped if the total length of these
983 * queues increases over the limit. */
984 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
985 struct tasklet_struct tasklet;
986 struct sk_buff_head skb_queue;
987 struct sk_buff_head skb_queue_unreliable;
990 * Internal FIFO queue which is shared between multiple rx path
991 * stages. Its main task is to provide a serialization mechanism,
992 * so all rx handlers can enjoy having exclusive access to their
993 * private data structures.
995 struct sk_buff_head rx_skb_queue;
996 bool running_rx_handler; /* protected by rx_skb_queue.lock */
1000 * The mutex only protects the list, hash table and
1001 * counter, reads are done with RCU.
1003 struct mutex sta_mtx;
1004 spinlock_t tim_lock;
1005 unsigned long num_sta;
1006 struct list_head sta_list;
1007 struct sta_info __rcu *sta_hash[STA_HASH_SIZE];
1008 struct timer_list sta_cleanup;
1011 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1012 struct tasklet_struct tx_pending_tasklet;
1014 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1016 /* number of interfaces with corresponding IFF_ flags */
1017 atomic_t iff_allmultis, iff_promiscs;
1019 struct rate_control_ref *rate_ctrl;
1021 struct crypto_cipher *wep_tx_tfm;
1022 struct crypto_cipher *wep_rx_tfm;
1026 struct list_head interfaces;
1027 struct mutex iflist_mtx;
1030 * Key mutex, protects sdata's key_list and sta_info's
1031 * key pointers (write access, they're RCU.)
1033 struct mutex key_mtx;
1035 /* mutex for scan and work locking */
1038 /* Scanning and BSS list */
1039 unsigned long scanning;
1040 struct cfg80211_ssid scan_ssid;
1041 struct cfg80211_scan_request *int_scan_req;
1042 struct cfg80211_scan_request *scan_req, *hw_scan_req;
1043 struct ieee80211_channel *scan_channel;
1044 enum ieee80211_band hw_scan_band;
1045 int scan_channel_idx;
1047 int hw_scan_ies_bufsize;
1049 struct work_struct sched_scan_stopped_work;
1050 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1052 unsigned long leave_oper_channel_time;
1053 enum mac80211_scan_state next_scan_state;
1054 struct delayed_work scan_work;
1055 struct ieee80211_sub_if_data __rcu *scan_sdata;
1056 struct ieee80211_channel *csa_channel;
1057 /* For backward compatibility only -- do not use */
1058 struct ieee80211_channel *_oper_channel;
1059 enum nl80211_channel_type _oper_channel_type;
1061 /* Temporary remain-on-channel for off-channel operations */
1062 struct ieee80211_channel *tmp_channel;
1064 /* channel contexts */
1065 struct list_head chanctx_list;
1066 struct mutex chanctx_mtx;
1069 /* dot11CountersTable */
1070 u32 dot11TransmittedFragmentCount;
1071 u32 dot11MulticastTransmittedFrameCount;
1072 u32 dot11FailedCount;
1073 u32 dot11RetryCount;
1074 u32 dot11MultipleRetryCount;
1075 u32 dot11FrameDuplicateCount;
1076 u32 dot11ReceivedFragmentCount;
1077 u32 dot11MulticastReceivedFrameCount;
1078 u32 dot11TransmittedFrameCount;
1080 #ifdef CONFIG_MAC80211_LEDS
1081 int tx_led_counter, rx_led_counter;
1082 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
1083 struct tpt_led_trigger *tpt_led_trigger;
1084 char tx_led_name[32], rx_led_name[32],
1085 assoc_led_name[32], radio_led_name[32];
1088 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1089 /* TX/RX handler statistics */
1090 unsigned int tx_handlers_drop;
1091 unsigned int tx_handlers_queued;
1092 unsigned int tx_handlers_drop_unencrypted;
1093 unsigned int tx_handlers_drop_fragment;
1094 unsigned int tx_handlers_drop_wep;
1095 unsigned int tx_handlers_drop_not_assoc;
1096 unsigned int tx_handlers_drop_unauth_port;
1097 unsigned int rx_handlers_drop;
1098 unsigned int rx_handlers_queued;
1099 unsigned int rx_handlers_drop_nullfunc;
1100 unsigned int rx_handlers_drop_defrag;
1101 unsigned int rx_handlers_drop_short;
1102 unsigned int tx_expand_skb_head;
1103 unsigned int tx_expand_skb_head_cloned;
1104 unsigned int rx_expand_skb_head;
1105 unsigned int rx_expand_skb_head2;
1106 unsigned int rx_handlers_fragments;
1107 unsigned int tx_status_drop;
1108 #define I802_DEBUG_INC(c) (c)++
1109 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1110 #define I802_DEBUG_INC(c) do { } while (0)
1111 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1114 int total_ps_buffered; /* total number of all buffered unicast and
1115 * multicast packets for power saving stations
1119 bool offchannel_ps_enabled;
1121 * PS can only be enabled when we have exactly one managed
1122 * interface (and monitors) in PS, this then points there.
1124 struct ieee80211_sub_if_data *ps_sdata;
1125 struct work_struct dynamic_ps_enable_work;
1126 struct work_struct dynamic_ps_disable_work;
1127 struct timer_list dynamic_ps_timer;
1128 struct notifier_block network_latency_notifier;
1129 struct notifier_block ifa_notifier;
1130 struct notifier_block ifa6_notifier;
1133 * The dynamic ps timeout configured from user space via WEXT -
1134 * this will override whatever chosen by mac80211 internally.
1136 int dynamic_ps_forced_timeout;
1137 int dynamic_ps_user_timeout;
1138 bool disable_dynamic_ps;
1140 int user_power_level; /* in dBm, for all interfaces */
1142 enum ieee80211_smps_mode smps_mode;
1144 struct work_struct restart_work;
1146 #ifdef CONFIG_MAC80211_DEBUGFS
1147 struct local_debugfsdentries {
1148 struct dentry *rcdir;
1149 struct dentry *keys;
1154 * Remain-on-channel support
1156 struct list_head roc_list;
1157 struct work_struct hw_roc_start, hw_roc_done;
1158 unsigned long hw_roc_start_time;
1159 u64 roc_cookie_counter;
1161 struct idr ack_status_frames;
1162 spinlock_t ack_status_lock;
1164 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1166 /* dummy netdev for use w/ NAPI */
1167 struct net_device napi_dev;
1169 struct napi_struct napi;
1171 /* virtual monitor interface */
1172 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1173 struct cfg80211_chan_def monitor_chandef;
1176 static inline struct ieee80211_sub_if_data *
1177 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1179 return netdev_priv(dev);
1182 static inline struct ieee80211_sub_if_data *
1183 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1185 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1188 /* this struct represents 802.11n's RA/TID combination */
1189 struct ieee80211_ra_tid {
1194 /* Parsed Information Elements */
1195 struct ieee802_11_elems {
1199 /* pointers to IEs */
1205 struct ieee80211_tim_ie *tim;
1214 struct ieee80211_ht_cap *ht_cap_elem;
1215 struct ieee80211_ht_operation *ht_operation;
1216 struct ieee80211_vht_cap *vht_cap_elem;
1217 struct ieee80211_vht_operation *vht_operation;
1218 struct ieee80211_meshconf_ie *mesh_config;
1224 struct ieee80211_rann_ie *rann;
1225 struct ieee80211_channel_sw_ie *ch_switch_ie;
1227 u8 *pwr_constr_elem;
1228 u8 *quiet_elem; /* first quite element */
1231 /* length of them, respectively */
1243 u8 ext_supp_rates_len;
1251 u8 country_elem_len;
1253 u8 num_of_quiet_elem; /* can be more the one */
1256 /* whether a parse error occurred while retrieving these elements */
1260 static inline struct ieee80211_local *hw_to_local(
1261 struct ieee80211_hw *hw)
1263 return container_of(hw, struct ieee80211_local, hw);
1267 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1269 return ether_addr_equal(raddr, addr) ||
1270 is_broadcast_ether_addr(raddr);
1274 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1276 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1277 status->flag & RX_FLAG_MACTIME_END);
1278 return status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END);
1281 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1282 struct ieee80211_rx_status *status,
1283 unsigned int mpdu_len,
1284 unsigned int mpdu_offset);
1285 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1286 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1287 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1289 void ieee80211_configure_filter(struct ieee80211_local *local);
1290 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1293 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1294 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1295 struct cfg80211_auth_request *req);
1296 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1297 struct cfg80211_assoc_request *req);
1298 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1299 struct cfg80211_deauth_request *req);
1300 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1301 struct cfg80211_disassoc_request *req);
1302 void ieee80211_send_pspoll(struct ieee80211_local *local,
1303 struct ieee80211_sub_if_data *sdata);
1304 void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency);
1305 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1306 int ieee80211_max_network_latency(struct notifier_block *nb,
1307 unsigned long data, void *dummy);
1308 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1309 void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
1310 struct ieee80211_channel_sw_ie *sw_elem,
1311 struct ieee80211_bss *bss,
1313 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
1314 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1315 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1316 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1317 struct sk_buff *skb);
1318 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1319 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1320 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1323 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1324 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1325 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1326 const u8 *bssid, const u8 *addr, u32 supp_rates);
1327 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1328 struct cfg80211_ibss_params *params);
1329 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1330 void ieee80211_ibss_quiesce(struct ieee80211_sub_if_data *sdata);
1331 void ieee80211_ibss_restart(struct ieee80211_sub_if_data *sdata);
1332 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1333 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1334 struct sk_buff *skb);
1337 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1338 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1339 struct sk_buff *skb);
1341 /* scan/BSS handling */
1342 void ieee80211_scan_work(struct work_struct *work);
1343 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1344 const u8 *ssid, u8 ssid_len,
1345 struct ieee80211_channel *chan);
1346 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1347 struct cfg80211_scan_request *req);
1348 void ieee80211_scan_cancel(struct ieee80211_local *local);
1349 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1350 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1352 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1353 struct ieee80211_bss *
1354 ieee80211_bss_info_update(struct ieee80211_local *local,
1355 struct ieee80211_rx_status *rx_status,
1356 struct ieee80211_mgmt *mgmt,
1358 struct ieee802_11_elems *elems,
1359 struct ieee80211_channel *channel);
1360 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1361 struct ieee80211_bss *bss);
1363 /* scheduled scan handling */
1364 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1365 struct cfg80211_sched_scan_request *req);
1366 int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata);
1367 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1369 /* off-channel helpers */
1370 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local,
1371 bool offchannel_ps_enable);
1372 void ieee80211_offchannel_return(struct ieee80211_local *local,
1373 bool offchannel_ps_disable);
1374 void ieee80211_roc_setup(struct ieee80211_local *local);
1375 void ieee80211_start_next_roc(struct ieee80211_local *local);
1376 void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata);
1377 void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc);
1378 void ieee80211_sw_roc_work(struct work_struct *work);
1379 void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc);
1381 /* interface handling */
1382 int ieee80211_iface_init(void);
1383 void ieee80211_iface_exit(void);
1384 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1385 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1386 struct vif_params *params);
1387 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1388 enum nl80211_iftype type);
1389 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1390 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1391 void ieee80211_recalc_idle(struct ieee80211_local *local);
1392 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1394 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1395 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
1397 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1398 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1400 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1402 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1406 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1407 void ieee80211_tx_pending(unsigned long data);
1408 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1409 struct net_device *dev);
1410 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1411 struct net_device *dev);
1412 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1413 struct sk_buff_head *skbs);
1416 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1417 struct ieee80211_sta_ht_cap *ht_cap);
1418 void ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1419 struct ieee80211_supported_band *sband,
1420 struct ieee80211_ht_cap *ht_cap_ie,
1421 struct ieee80211_sta_ht_cap *ht_cap);
1422 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1423 const u8 *da, u16 tid,
1424 u16 initiator, u16 reason_code);
1425 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1426 enum ieee80211_smps_mode smps, const u8 *da,
1428 void ieee80211_request_smps_work(struct work_struct *work);
1430 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1431 u16 initiator, u16 reason, bool stop);
1432 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1433 u16 initiator, u16 reason, bool stop);
1434 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1435 enum ieee80211_agg_stop_reason reason);
1436 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1437 struct sta_info *sta,
1438 struct ieee80211_mgmt *mgmt, size_t len);
1439 void ieee80211_process_addba_resp(struct ieee80211_local *local,
1440 struct sta_info *sta,
1441 struct ieee80211_mgmt *mgmt,
1443 void ieee80211_process_addba_request(struct ieee80211_local *local,
1444 struct sta_info *sta,
1445 struct ieee80211_mgmt *mgmt,
1448 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1449 enum ieee80211_agg_stop_reason reason);
1450 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1451 enum ieee80211_agg_stop_reason reason);
1452 void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1453 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
1454 void ieee80211_ba_session_work(struct work_struct *work);
1455 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1456 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1458 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1461 void ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1462 struct ieee80211_supported_band *sband,
1463 struct ieee80211_vht_cap *vht_cap_ie,
1464 struct ieee80211_sta_vht_cap *vht_cap);
1465 /* Spectrum management */
1466 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1467 struct ieee80211_mgmt *mgmt,
1470 /* Suspend/resume and hw reconfiguration */
1471 int ieee80211_reconfig(struct ieee80211_local *local);
1472 void ieee80211_stop_device(struct ieee80211_local *local);
1474 int __ieee80211_suspend(struct ieee80211_hw *hw,
1475 struct cfg80211_wowlan *wowlan);
1477 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1479 struct ieee80211_local *local = hw_to_local(hw);
1481 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning),
1482 "%s: resume with hardware scan still in progress\n",
1483 wiphy_name(hw->wiphy));
1485 return ieee80211_reconfig(hw_to_local(hw));
1488 /* utility functions/constants */
1489 extern void *mac80211_wiphy_privid; /* for wiphy privid */
1490 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
1491 enum nl80211_iftype type);
1492 int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
1493 int rate, int erp, int short_preamble);
1494 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx,
1495 struct ieee80211_hdr *hdr, const u8 *tsc,
1497 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1499 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb,
1500 enum ieee80211_band band);
1502 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1503 struct sk_buff *skb, int tid,
1504 enum ieee80211_band band);
1507 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1508 struct sk_buff *skb, int tid,
1509 enum ieee80211_band band)
1512 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1516 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1517 struct sk_buff *skb, int tid)
1519 struct ieee80211_chanctx_conf *chanctx_conf;
1522 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1523 if (WARN_ON(!chanctx_conf)) {
1529 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
1530 chanctx_conf->def.chan->band);
1534 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
1535 struct sk_buff *skb)
1537 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
1538 ieee80211_tx_skb_tid(sdata, skb, 7);
1541 void ieee802_11_parse_elems(u8 *start, size_t len,
1542 struct ieee802_11_elems *elems);
1543 u32 ieee802_11_parse_elems_crc(u8 *start, size_t len,
1544 struct ieee802_11_elems *elems,
1545 u64 filter, u32 crc);
1546 u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
1547 enum ieee80211_band band);
1549 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1550 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1551 void ieee80211_dynamic_ps_timer(unsigned long data);
1552 void ieee80211_send_nullfunc(struct ieee80211_local *local,
1553 struct ieee80211_sub_if_data *sdata,
1555 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1556 struct ieee80211_hdr *hdr);
1557 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
1558 struct ieee80211_hdr *hdr, bool ack);
1560 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1561 enum queue_stop_reason reason);
1562 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1563 enum queue_stop_reason reason);
1564 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1565 enum queue_stop_reason reason);
1566 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1567 enum queue_stop_reason reason);
1568 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
1569 void ieee80211_add_pending_skb(struct ieee80211_local *local,
1570 struct sk_buff *skb);
1571 void ieee80211_add_pending_skbs_fn(struct ieee80211_local *local,
1572 struct sk_buff_head *skbs,
1573 void (*fn)(void *data), void *data);
1574 static inline void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1575 struct sk_buff_head *skbs)
1577 ieee80211_add_pending_skbs_fn(local, skbs, NULL, NULL);
1580 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1581 u16 transaction, u16 auth_alg, u16 status,
1582 u8 *extra, size_t extra_len, const u8 *bssid,
1583 const u8 *da, const u8 *key, u8 key_len, u8 key_idx);
1584 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
1585 const u8 *bssid, u16 stype, u16 reason,
1586 bool send_frame, u8 *frame_buf);
1587 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1588 size_t buffer_len, const u8 *ie, size_t ie_len,
1589 enum ieee80211_band band, u32 rate_mask,
1591 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
1592 u8 *dst, u32 ratemask,
1593 struct ieee80211_channel *chan,
1594 const u8 *ssid, size_t ssid_len,
1595 const u8 *ie, size_t ie_len,
1597 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
1598 const u8 *ssid, size_t ssid_len,
1599 const u8 *ie, size_t ie_len,
1600 u32 ratemask, bool directed, bool no_cck,
1601 struct ieee80211_channel *channel, bool scan);
1603 void ieee80211_sta_def_wmm_params(struct ieee80211_sub_if_data *sdata,
1604 const size_t supp_rates_len,
1605 const u8 *supp_rates);
1606 u32 ieee80211_sta_get_rates(struct ieee80211_local *local,
1607 struct ieee802_11_elems *elems,
1608 enum ieee80211_band band, u32 *basic_rates);
1609 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1610 enum ieee80211_smps_mode smps_mode);
1611 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
1613 size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
1614 const u8 *ids, int n_ids, size_t offset);
1615 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
1616 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1618 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1619 const struct cfg80211_chan_def *chandef,
1621 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1623 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
1624 struct sk_buff *skb, bool need_basic,
1625 enum ieee80211_band band);
1626 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
1627 struct sk_buff *skb, bool need_basic,
1628 enum ieee80211_band band);
1630 /* channel management */
1631 void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
1632 struct ieee80211_ht_operation *ht_oper,
1633 struct cfg80211_chan_def *chandef);
1636 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
1637 const struct cfg80211_chan_def *chandef,
1638 enum ieee80211_chanctx_mode mode);
1639 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
1640 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
1642 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
1643 struct ieee80211_chanctx *chanctx);
1645 #ifdef CONFIG_MAC80211_NOINLINE
1646 #define debug_noinline noinline
1648 #define debug_noinline
1651 #endif /* IEEE80211_I_H */