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13#ifndef IEEE80211_I_H
14#define IEEE80211_I_H
15
16#include <linux/kernel.h>
17#include <linux/device.h>
18#include <linux/if_ether.h>
19#include <linux/interrupt.h>
20#include <linux/list.h>
21#include <linux/netdevice.h>
22#include <linux/skbuff.h>
23#include <linux/workqueue.h>
24#include <linux/types.h>
25#include <linux/spinlock.h>
26#include <linux/etherdevice.h>
27#include <linux/leds.h>
28#include <linux/idr.h>
29#include <linux/rhashtable.h>
30#include <net/ieee80211_radiotap.h>
31#include <net/cfg80211.h>
32#include <net/mac80211.h>
33#include "key.h"
34#include "sta_info.h"
35#include "debug.h"
36
37extern const struct cfg80211_ops mac80211_config_ops;
38
39struct ieee80211_local;
40
41
42
43#define AP_MAX_BC_BUFFER 128
44
45
46
47
48#define TOTAL_MAX_TX_BUFFER 512
49
50
51#define IEEE80211_ENCRYPT_HEADROOM 8
52#define IEEE80211_ENCRYPT_TAILROOM 18
53
54
55
56
57
58#define IEEE80211_FRAGMENT_MAX 4
59
60
61#define IEEE80211_UNSET_POWER_LEVEL INT_MIN
62
63
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79
80
81#define IEEE80211_DEFAULT_UAPSD_QUEUES 0
82
83#define IEEE80211_DEFAULT_MAX_SP_LEN \
84 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
85
86#define IEEE80211_DEAUTH_FRAME_LEN (24 + 2 )
87
88struct ieee80211_fragment_entry {
89 struct sk_buff_head skb_list;
90 unsigned long first_frag_time;
91 u16 seq;
92 u16 extra_len;
93 u16 last_frag;
94 u8 rx_queue;
95 bool check_sequential_pn;
96 u8 last_pn[6];
97};
98
99
100struct ieee80211_bss {
101 u32 device_ts_beacon, device_ts_presp;
102
103 bool wmm_used;
104 bool uapsd_supported;
105
106#define IEEE80211_MAX_SUPP_RATES 32
107 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
108 size_t supp_rates_len;
109 struct ieee80211_rate *beacon_rate;
110
111
112
113
114
115
116
117 bool has_erp_value;
118 u8 erp_value;
119
120
121 u8 corrupt_data;
122
123
124 u8 valid_data;
125};
126
127
128
129
130
131
132
133
134
135enum ieee80211_bss_corrupt_data_flags {
136 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
137 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
138};
139
140
141
142
143
144
145
146
147
148
149
150
151enum ieee80211_bss_valid_data_flags {
152 IEEE80211_BSS_VALID_WMM = BIT(1),
153 IEEE80211_BSS_VALID_RATES = BIT(2),
154 IEEE80211_BSS_VALID_ERP = BIT(3)
155};
156
157typedef unsigned __bitwise__ ieee80211_tx_result;
158#define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
159#define TX_DROP ((__force ieee80211_tx_result) 1u)
160#define TX_QUEUED ((__force ieee80211_tx_result) 2u)
161
162#define IEEE80211_TX_UNICAST BIT(1)
163#define IEEE80211_TX_PS_BUFFERED BIT(2)
164
165struct ieee80211_tx_data {
166 struct sk_buff *skb;
167 struct sk_buff_head skbs;
168 struct ieee80211_local *local;
169 struct ieee80211_sub_if_data *sdata;
170 struct sta_info *sta;
171 struct ieee80211_key *key;
172 struct ieee80211_tx_rate rate;
173
174 unsigned int flags;
175};
176
177
178typedef unsigned __bitwise__ ieee80211_rx_result;
179#define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
180#define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
181#define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
182#define RX_QUEUED ((__force ieee80211_rx_result) 3u)
183
184
185
186
187
188
189
190
191
192
193enum ieee80211_packet_rx_flags {
194 IEEE80211_RX_AMSDU = BIT(3),
195 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
196 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
197};
198
199
200
201
202
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205
206
207
208
209enum ieee80211_rx_flags {
210 IEEE80211_RX_CMNTR = BIT(0),
211 IEEE80211_RX_BEACON_REPORTED = BIT(1),
212};
213
214struct ieee80211_rx_data {
215 struct napi_struct *napi;
216 struct sk_buff *skb;
217 struct ieee80211_local *local;
218 struct ieee80211_sub_if_data *sdata;
219 struct sta_info *sta;
220 struct ieee80211_key *key;
221
222 unsigned int flags;
223
224
225
226
227
228
229 int seqno_idx;
230
231
232
233
234
235
236
237 int security_idx;
238
239 u32 tkip_iv32;
240 u16 tkip_iv16;
241};
242
243struct ieee80211_csa_settings {
244 const u16 *counter_offsets_beacon;
245 const u16 *counter_offsets_presp;
246
247 int n_counter_offsets_beacon;
248 int n_counter_offsets_presp;
249
250 u8 count;
251};
252
253struct beacon_data {
254 u8 *head, *tail;
255 int head_len, tail_len;
256 struct ieee80211_meshconf_ie *meshconf;
257 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
258 u8 csa_current_counter;
259 struct rcu_head rcu_head;
260};
261
262struct probe_resp {
263 struct rcu_head rcu_head;
264 int len;
265 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM];
266 u8 data[0];
267};
268
269struct ps_data {
270
271
272
273 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
274 __aligned(__alignof__(unsigned long));
275 struct sk_buff_head bc_buf;
276 atomic_t num_sta_ps;
277 int dtim_count;
278 bool dtim_bc_mc;
279};
280
281struct ieee80211_if_ap {
282 struct beacon_data __rcu *beacon;
283 struct probe_resp __rcu *probe_resp;
284
285
286 struct cfg80211_beacon_data *next_beacon;
287 struct list_head vlans;
288
289 struct ps_data ps;
290 atomic_t num_mcast_sta;
291 enum ieee80211_smps_mode req_smps,
292 driver_smps_mode;
293
294 struct work_struct request_smps_work;
295};
296
297struct ieee80211_if_wds {
298 struct sta_info *sta;
299 u8 remote_addr[ETH_ALEN];
300};
301
302struct ieee80211_if_vlan {
303 struct list_head list;
304
305
306 struct sta_info __rcu *sta;
307};
308
309struct mesh_stats {
310 __u32 fwded_mcast;
311 __u32 fwded_unicast;
312 __u32 fwded_frames;
313 __u32 dropped_frames_ttl;
314 __u32 dropped_frames_no_route;
315 __u32 dropped_frames_congestion;
316};
317
318#define PREQ_Q_F_START 0x1
319#define PREQ_Q_F_REFRESH 0x2
320struct mesh_preq_queue {
321 struct list_head list;
322 u8 dst[ETH_ALEN];
323 u8 flags;
324};
325
326struct ieee80211_roc_work {
327 struct list_head list;
328
329 struct ieee80211_sub_if_data *sdata;
330
331 struct ieee80211_channel *chan;
332
333 bool started, abort, hw_begun, notified;
334 bool on_channel;
335
336 unsigned long start_time;
337
338 u32 duration, req_duration;
339 struct sk_buff *frame;
340 u64 cookie, mgmt_tx_cookie;
341 enum ieee80211_roc_type type;
342};
343
344
345enum ieee80211_sta_flags {
346 IEEE80211_STA_CONNECTION_POLL = BIT(1),
347 IEEE80211_STA_CONTROL_PORT = BIT(2),
348 IEEE80211_STA_DISABLE_HT = BIT(4),
349 IEEE80211_STA_MFP_ENABLED = BIT(6),
350 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
351 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
352 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
353 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
354 IEEE80211_STA_DISABLE_VHT = BIT(11),
355 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
356 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
357 IEEE80211_STA_DISABLE_WMM = BIT(14),
358 IEEE80211_STA_ENABLE_RRM = BIT(15),
359};
360
361struct ieee80211_mgd_auth_data {
362 struct cfg80211_bss *bss;
363 unsigned long timeout;
364 int tries;
365 u16 algorithm, expected_transaction;
366
367 u8 key[WLAN_KEY_LEN_WEP104];
368 u8 key_len, key_idx;
369 bool done;
370 bool timeout_started;
371
372 u16 sae_trans, sae_status;
373 size_t data_len;
374 u8 data[];
375};
376
377struct ieee80211_mgd_assoc_data {
378 struct cfg80211_bss *bss;
379 const u8 *supp_rates;
380
381 unsigned long timeout;
382 int tries;
383
384 u16 capability;
385 u8 prev_bssid[ETH_ALEN];
386 u8 ssid[IEEE80211_MAX_SSID_LEN];
387 u8 ssid_len;
388 u8 supp_rates_len;
389 bool wmm, uapsd;
390 bool need_beacon;
391 bool synced;
392 bool timeout_started;
393
394 u8 ap_ht_param;
395
396 struct ieee80211_vht_cap ap_vht_cap;
397
398 size_t ie_len;
399 u8 ie[];
400};
401
402struct ieee80211_sta_tx_tspec {
403
404 unsigned long time_slice_start;
405
406 u32 admitted_time;
407 u8 tsid;
408 s8 up;
409
410
411 u32 consumed_tx_time;
412 enum {
413 TX_TSPEC_ACTION_NONE = 0,
414 TX_TSPEC_ACTION_DOWNGRADE,
415 TX_TSPEC_ACTION_STOP_DOWNGRADE,
416 } action;
417 bool downgraded;
418};
419
420DECLARE_EWMA(beacon_signal, 16, 4)
421
422struct ieee80211_if_managed {
423 struct timer_list timer;
424 struct timer_list conn_mon_timer;
425 struct timer_list bcn_mon_timer;
426 struct timer_list chswitch_timer;
427 struct work_struct monitor_work;
428 struct work_struct chswitch_work;
429 struct work_struct beacon_connection_loss_work;
430 struct work_struct csa_connection_drop_work;
431
432 unsigned long beacon_timeout;
433 unsigned long probe_timeout;
434 int probe_send_count;
435 bool nullfunc_failed;
436 bool connection_loss;
437
438 struct cfg80211_bss *associated;
439 struct ieee80211_mgd_auth_data *auth_data;
440 struct ieee80211_mgd_assoc_data *assoc_data;
441
442 u8 bssid[ETH_ALEN];
443
444 u16 aid;
445
446 bool powersave;
447 bool broken_ap;
448 bool have_beacon;
449 u8 dtim_period;
450 enum ieee80211_smps_mode req_smps,
451 driver_smps_mode;
452
453 struct work_struct request_smps_work;
454
455 unsigned int flags;
456
457 bool csa_waiting_bcn;
458 bool csa_ignored_same_chan;
459
460 bool beacon_crc_valid;
461 u32 beacon_crc;
462
463 bool status_acked;
464 bool status_received;
465 __le16 status_fc;
466
467 enum {
468 IEEE80211_MFP_DISABLED,
469 IEEE80211_MFP_OPTIONAL,
470 IEEE80211_MFP_REQUIRED
471 } mfp;
472
473
474
475
476
477
478 unsigned int uapsd_queues;
479
480
481
482
483
484
485 unsigned int uapsd_max_sp_len;
486
487 int wmm_last_param_set;
488
489 u8 use_4addr;
490
491 s16 p2p_noa_index;
492
493 struct ewma_beacon_signal ave_beacon_signal;
494
495
496
497
498
499
500 unsigned int count_beacon_signal;
501
502
503 unsigned int beacon_loss_count;
504
505
506
507
508
509
510 int last_cqm_event_signal;
511
512
513
514
515
516
517 int rssi_min_thold, rssi_max_thold;
518 int last_ave_beacon_signal;
519
520 struct ieee80211_ht_cap ht_capa;
521 struct ieee80211_ht_cap ht_capa_mask;
522 struct ieee80211_vht_cap vht_capa;
523 struct ieee80211_vht_cap vht_capa_mask;
524
525
526 u8 tdls_peer[ETH_ALEN] __aligned(2);
527 struct delayed_work tdls_peer_del_work;
528 struct sk_buff *orig_teardown_skb;
529 struct sk_buff *teardown_skb;
530 spinlock_t teardown_lock;
531 bool tdls_chan_switch_prohibited;
532 bool tdls_wider_bw_prohibited;
533
534
535 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
536
537
538
539
540
541
542 struct delayed_work tx_tspec_wk;
543};
544
545struct ieee80211_if_ibss {
546 struct timer_list timer;
547 struct work_struct csa_connection_drop_work;
548
549 unsigned long last_scan_completed;
550
551 u32 basic_rates;
552
553 bool fixed_bssid;
554 bool fixed_channel;
555 bool privacy;
556
557 bool control_port;
558 bool userspace_handles_dfs;
559
560 u8 bssid[ETH_ALEN] __aligned(2);
561 u8 ssid[IEEE80211_MAX_SSID_LEN];
562 u8 ssid_len, ie_len;
563 u8 *ie;
564 struct cfg80211_chan_def chandef;
565
566 unsigned long ibss_join_req;
567
568 struct beacon_data __rcu *presp;
569
570 struct ieee80211_ht_cap ht_capa;
571 struct ieee80211_ht_cap ht_capa_mask;
572
573 spinlock_t incomplete_lock;
574 struct list_head incomplete_stations;
575
576 enum {
577 IEEE80211_IBSS_MLME_SEARCH,
578 IEEE80211_IBSS_MLME_JOINED,
579 } state;
580};
581
582
583
584
585
586
587
588
589
590
591struct ieee80211_if_ocb {
592 struct timer_list housekeeping_timer;
593 unsigned long wrkq_flags;
594
595 spinlock_t incomplete_lock;
596 struct list_head incomplete_stations;
597
598 bool joined;
599};
600
601
602
603
604
605
606
607
608struct ieee802_11_elems;
609struct ieee80211_mesh_sync_ops {
610 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata,
611 u16 stype,
612 struct ieee80211_mgmt *mgmt,
613 struct ieee802_11_elems *elems,
614 struct ieee80211_rx_status *rx_status);
615
616
617 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata,
618 struct beacon_data *beacon);
619
620};
621
622struct mesh_csa_settings {
623 struct rcu_head rcu_head;
624 struct cfg80211_csa_settings settings;
625};
626
627struct ieee80211_if_mesh {
628 struct timer_list housekeeping_timer;
629 struct timer_list mesh_path_timer;
630 struct timer_list mesh_path_root_timer;
631
632 unsigned long wrkq_flags;
633 unsigned long mbss_changed;
634
635 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
636 size_t mesh_id_len;
637
638 u8 mesh_pp_id;
639
640 u8 mesh_pm_id;
641
642 u8 mesh_cc_id;
643
644 u8 mesh_sp_id;
645
646 u8 mesh_auth_id;
647
648 u32 sn;
649
650 u32 preq_id;
651 atomic_t mpaths;
652
653 unsigned long last_sn_update;
654
655 unsigned long next_perr;
656
657 unsigned long last_preq;
658 struct mesh_rmc *rmc;
659 spinlock_t mesh_preq_queue_lock;
660 struct mesh_preq_queue preq_queue;
661 int preq_queue_len;
662 struct mesh_stats mshstats;
663 struct mesh_config mshcfg;
664 atomic_t estab_plinks;
665 u32 mesh_seqnum;
666 bool accepting_plinks;
667 int num_gates;
668 struct beacon_data __rcu *beacon;
669 const u8 *ie;
670 u8 ie_len;
671 enum {
672 IEEE80211_MESH_SEC_NONE = 0x0,
673 IEEE80211_MESH_SEC_AUTHED = 0x1,
674 IEEE80211_MESH_SEC_SECURED = 0x2,
675 } security;
676 bool user_mpm;
677
678 const struct ieee80211_mesh_sync_ops *sync_ops;
679 s64 sync_offset_clockdrift_max;
680 spinlock_t sync_offset_lock;
681 bool adjusting_tbtt;
682
683 enum nl80211_mesh_power_mode nonpeer_pm;
684 int ps_peers_light_sleep;
685 int ps_peers_deep_sleep;
686 struct ps_data ps;
687
688 struct mesh_csa_settings __rcu *csa;
689 enum {
690 IEEE80211_MESH_CSA_ROLE_NONE,
691 IEEE80211_MESH_CSA_ROLE_INIT,
692 IEEE80211_MESH_CSA_ROLE_REPEATER,
693 } csa_role;
694 u8 chsw_ttl;
695 u16 pre_value;
696
697
698 int meshconf_offset;
699};
700
701#ifdef CONFIG_MAC80211_MESH
702#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
703 do { (msh)->mshstats.name++; } while (0)
704#else
705#define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
706 do { } while (0)
707#endif
708
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718
719
720
721enum ieee80211_sub_if_data_flags {
722 IEEE80211_SDATA_ALLMULTI = BIT(0),
723 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
724 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
725 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
726 IEEE80211_SDATA_IN_DRIVER = BIT(5),
727 IEEE80211_SDATA_MU_MIMO_OWNER = BIT(6),
728};
729
730
731
732
733
734
735
736
737
738
739
740enum ieee80211_sdata_state_bits {
741 SDATA_STATE_RUNNING,
742 SDATA_STATE_OFFCHANNEL,
743 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
744};
745
746
747
748
749
750
751
752
753
754
755enum ieee80211_chanctx_mode {
756 IEEE80211_CHANCTX_SHARED,
757 IEEE80211_CHANCTX_EXCLUSIVE
758};
759
760
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764
765
766
767
768
769
770
771
772enum ieee80211_chanctx_replace_state {
773 IEEE80211_CHANCTX_REPLACE_NONE,
774 IEEE80211_CHANCTX_WILL_BE_REPLACED,
775 IEEE80211_CHANCTX_REPLACES_OTHER,
776};
777
778struct ieee80211_chanctx {
779 struct list_head list;
780 struct rcu_head rcu_head;
781
782 struct list_head assigned_vifs;
783 struct list_head reserved_vifs;
784
785 enum ieee80211_chanctx_replace_state replace_state;
786 struct ieee80211_chanctx *replace_ctx;
787
788 enum ieee80211_chanctx_mode mode;
789 bool driver_present;
790
791 struct ieee80211_chanctx_conf conf;
792};
793
794struct mac80211_qos_map {
795 struct cfg80211_qos_map qos_map;
796 struct rcu_head rcu_head;
797};
798
799enum txq_info_flags {
800 IEEE80211_TXQ_STOP,
801 IEEE80211_TXQ_AMPDU,
802};
803
804struct txq_info {
805 struct sk_buff_head queue;
806 unsigned long flags;
807
808
809 struct ieee80211_txq txq;
810};
811
812struct ieee80211_sub_if_data {
813 struct list_head list;
814
815 struct wireless_dev wdev;
816
817
818 struct list_head key_list;
819
820
821 int crypto_tx_tailroom_needed_cnt;
822 int crypto_tx_tailroom_pending_dec;
823 struct delayed_work dec_tailroom_needed_wk;
824
825 struct net_device *dev;
826 struct ieee80211_local *local;
827
828 unsigned int flags;
829
830 unsigned long state;
831
832 char name[IFNAMSIZ];
833
834
835 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX];
836 unsigned int fragment_next;
837
838
839 u16 noack_map;
840
841
842 u8 wmm_acm;
843
844 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS];
845 struct ieee80211_key __rcu *default_unicast_key;
846 struct ieee80211_key __rcu *default_multicast_key;
847 struct ieee80211_key __rcu *default_mgmt_key;
848
849 u16 sequence_number;
850 __be16 control_port_protocol;
851 bool control_port_no_encrypt;
852 int encrypt_headroom;
853
854 atomic_t txqs_len[IEEE80211_NUM_ACS];
855 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
856 struct mac80211_qos_map __rcu *qos_map;
857
858 struct work_struct csa_finalize_work;
859 bool csa_block_tx;
860 struct cfg80211_chan_def csa_chandef;
861
862 struct list_head assigned_chanctx_list;
863 struct list_head reserved_chanctx_list;
864
865
866 struct ieee80211_chanctx *reserved_chanctx;
867 struct cfg80211_chan_def reserved_chandef;
868 bool reserved_radar_required;
869 bool reserved_ready;
870
871
872 struct work_struct recalc_smps;
873
874 struct work_struct work;
875 struct sk_buff_head skb_queue;
876
877 u8 needed_rx_chains;
878 enum ieee80211_smps_mode smps_mode;
879
880 int user_power_level;
881 int ap_power_level;
882
883 bool radar_required;
884 struct delayed_work dfs_cac_timer_work;
885
886
887
888
889
890
891 struct ieee80211_if_ap *bss;
892
893
894 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS];
895
896 bool rc_has_mcs_mask[IEEE80211_NUM_BANDS];
897 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN];
898
899 bool rc_has_vht_mcs_mask[IEEE80211_NUM_BANDS];
900 u16 rc_rateidx_vht_mcs_mask[IEEE80211_NUM_BANDS][NL80211_VHT_NSS_MAX];
901
902 union {
903 struct ieee80211_if_ap ap;
904 struct ieee80211_if_wds wds;
905 struct ieee80211_if_vlan vlan;
906 struct ieee80211_if_managed mgd;
907 struct ieee80211_if_ibss ibss;
908 struct ieee80211_if_mesh mesh;
909 struct ieee80211_if_ocb ocb;
910 u32 mntr_flags;
911 } u;
912
913#ifdef CONFIG_MAC80211_DEBUGFS
914 struct {
915 struct dentry *subdir_stations;
916 struct dentry *default_unicast_key;
917 struct dentry *default_multicast_key;
918 struct dentry *default_mgmt_key;
919 } debugfs;
920#endif
921
922
923 struct ieee80211_vif vif;
924};
925
926static inline
927struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
928{
929 return container_of(p, struct ieee80211_sub_if_data, vif);
930}
931
932static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
933 __acquires(&sdata->wdev.mtx)
934{
935 mutex_lock(&sdata->wdev.mtx);
936 __acquire(&sdata->wdev.mtx);
937}
938
939static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
940 __releases(&sdata->wdev.mtx)
941{
942 mutex_unlock(&sdata->wdev.mtx);
943 __release(&sdata->wdev.mtx);
944}
945
946#define sdata_dereference(p, sdata) \
947 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
948
949static inline void
950sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
951{
952 lockdep_assert_held(&sdata->wdev.mtx);
953}
954
955static inline enum ieee80211_band
956ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata)
957{
958 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
959 struct ieee80211_chanctx_conf *chanctx_conf;
960
961 rcu_read_lock();
962 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
963 if (!WARN_ON(!chanctx_conf))
964 band = chanctx_conf->def.chan->band;
965 rcu_read_unlock();
966
967 return band;
968}
969
970static inline int
971ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
972{
973 switch (chandef->width) {
974 case NL80211_CHAN_WIDTH_5:
975 return 2;
976 case NL80211_CHAN_WIDTH_10:
977 return 1;
978 default:
979 return 0;
980 }
981}
982
983static inline int
984ieee80211_vif_get_shift(struct ieee80211_vif *vif)
985{
986 struct ieee80211_chanctx_conf *chanctx_conf;
987 int shift = 0;
988
989 rcu_read_lock();
990 chanctx_conf = rcu_dereference(vif->chanctx_conf);
991 if (chanctx_conf)
992 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
993 rcu_read_unlock();
994
995 return shift;
996}
997
998struct ieee80211_rx_agg {
999 u8 addr[ETH_ALEN];
1000 u16 tid;
1001};
1002
1003enum sdata_queue_type {
1004 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0,
1005 IEEE80211_SDATA_QUEUE_AGG_START = 1,
1006 IEEE80211_SDATA_QUEUE_AGG_STOP = 2,
1007 IEEE80211_SDATA_QUEUE_RX_AGG_START = 3,
1008 IEEE80211_SDATA_QUEUE_RX_AGG_STOP = 4,
1009};
1010
1011enum {
1012 IEEE80211_RX_MSG = 1,
1013 IEEE80211_TX_STATUS_MSG = 2,
1014};
1015
1016enum queue_stop_reason {
1017 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1018 IEEE80211_QUEUE_STOP_REASON_PS,
1019 IEEE80211_QUEUE_STOP_REASON_CSA,
1020 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1021 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1022 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1023 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1024 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1025 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1026 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1027
1028 IEEE80211_QUEUE_STOP_REASONS,
1029};
1030
1031#ifdef CONFIG_MAC80211_LEDS
1032struct tpt_led_trigger {
1033 char name[32];
1034 const struct ieee80211_tpt_blink *blink_table;
1035 unsigned int blink_table_len;
1036 struct timer_list timer;
1037 unsigned long prev_traffic;
1038 unsigned long tx_bytes, rx_bytes;
1039 unsigned int active, want;
1040 bool running;
1041};
1042#endif
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060enum {
1061 SCAN_SW_SCANNING,
1062 SCAN_HW_SCANNING,
1063 SCAN_ONCHANNEL_SCANNING,
1064 SCAN_COMPLETED,
1065 SCAN_ABORTED,
1066 SCAN_HW_CANCELLED,
1067};
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082enum mac80211_scan_state {
1083 SCAN_DECISION,
1084 SCAN_SET_CHANNEL,
1085 SCAN_SEND_PROBE,
1086 SCAN_SUSPEND,
1087 SCAN_RESUME,
1088 SCAN_ABORT,
1089};
1090
1091struct ieee80211_local {
1092
1093
1094
1095 struct ieee80211_hw hw;
1096
1097 const struct ieee80211_ops *ops;
1098
1099
1100
1101
1102
1103 struct workqueue_struct *workqueue;
1104
1105 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1106 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1107
1108 spinlock_t queue_stop_reason_lock;
1109
1110 int open_count;
1111 int monitors, cooked_mntrs;
1112
1113 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1114 fif_probe_req;
1115 int probe_req_reg;
1116 unsigned int filter_flags;
1117
1118 bool wiphy_ciphers_allocated;
1119
1120 bool use_chanctx;
1121
1122
1123 spinlock_t filter_lock;
1124
1125
1126 struct work_struct reconfig_filter;
1127
1128
1129 struct netdev_hw_addr_list mc_list;
1130
1131 bool tim_in_locked_section;
1132
1133
1134
1135
1136
1137
1138
1139 bool suspended;
1140
1141
1142
1143
1144
1145
1146
1147 bool resuming;
1148
1149
1150
1151
1152
1153 bool quiescing;
1154
1155
1156 bool started;
1157
1158
1159 bool in_reconfig;
1160
1161
1162 bool wowlan;
1163
1164 struct work_struct radar_detected_work;
1165
1166
1167 u8 rx_chains;
1168
1169 int tx_headroom;
1170
1171
1172
1173
1174
1175#define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1176 struct tasklet_struct tasklet;
1177 struct sk_buff_head skb_queue;
1178 struct sk_buff_head skb_queue_unreliable;
1179
1180 spinlock_t rx_path_lock;
1181
1182
1183
1184
1185
1186
1187 struct mutex sta_mtx;
1188 spinlock_t tim_lock;
1189 unsigned long num_sta;
1190 struct list_head sta_list;
1191 struct rhashtable sta_hash;
1192 struct timer_list sta_cleanup;
1193 int sta_generation;
1194
1195 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1196 struct tasklet_struct tx_pending_tasklet;
1197
1198 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1199
1200
1201 atomic_t iff_allmultis;
1202
1203 struct rate_control_ref *rate_ctrl;
1204
1205 struct crypto_cipher *wep_tx_tfm;
1206 struct crypto_cipher *wep_rx_tfm;
1207 u32 wep_iv;
1208
1209
1210 struct list_head interfaces;
1211 struct mutex iflist_mtx;
1212
1213
1214
1215
1216
1217 struct mutex key_mtx;
1218
1219
1220 struct mutex mtx;
1221
1222
1223 unsigned long scanning;
1224 struct cfg80211_ssid scan_ssid;
1225 struct cfg80211_scan_request *int_scan_req;
1226 struct cfg80211_scan_request __rcu *scan_req;
1227 struct ieee80211_scan_request *hw_scan_req;
1228 struct cfg80211_chan_def scan_chandef;
1229 enum ieee80211_band hw_scan_band;
1230 int scan_channel_idx;
1231 int scan_ies_len;
1232 int hw_scan_ies_bufsize;
1233
1234 struct work_struct sched_scan_stopped_work;
1235 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1236 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1237 u8 scan_addr[ETH_ALEN];
1238
1239 unsigned long leave_oper_channel_time;
1240 enum mac80211_scan_state next_scan_state;
1241 struct delayed_work scan_work;
1242 struct ieee80211_sub_if_data __rcu *scan_sdata;
1243
1244 struct cfg80211_chan_def _oper_chandef;
1245
1246
1247 struct ieee80211_channel *tmp_channel;
1248
1249
1250 struct list_head chanctx_list;
1251 struct mutex chanctx_mtx;
1252
1253#ifdef CONFIG_MAC80211_LEDS
1254 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1255 struct led_trigger tpt_led;
1256 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1257 atomic_t radio_led_active, tpt_led_active;
1258 struct tpt_led_trigger *tpt_led_trigger;
1259#endif
1260
1261#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1262
1263
1264 u32 dot11TransmittedFragmentCount;
1265 u32 dot11MulticastTransmittedFrameCount;
1266 u32 dot11FailedCount;
1267 u32 dot11RetryCount;
1268 u32 dot11MultipleRetryCount;
1269 u32 dot11FrameDuplicateCount;
1270 u32 dot11ReceivedFragmentCount;
1271 u32 dot11MulticastReceivedFrameCount;
1272 u32 dot11TransmittedFrameCount;
1273
1274
1275 unsigned int tx_handlers_drop;
1276 unsigned int tx_handlers_queued;
1277 unsigned int tx_handlers_drop_wep;
1278 unsigned int tx_handlers_drop_not_assoc;
1279 unsigned int tx_handlers_drop_unauth_port;
1280 unsigned int rx_handlers_drop;
1281 unsigned int rx_handlers_queued;
1282 unsigned int rx_handlers_drop_nullfunc;
1283 unsigned int rx_handlers_drop_defrag;
1284 unsigned int tx_expand_skb_head;
1285 unsigned int tx_expand_skb_head_cloned;
1286 unsigned int rx_expand_skb_head_defrag;
1287 unsigned int rx_handlers_fragments;
1288 unsigned int tx_status_drop;
1289#define I802_DEBUG_INC(c) (c)++
1290#else
1291#define I802_DEBUG_INC(c) do { } while (0)
1292#endif
1293
1294
1295 int total_ps_buffered;
1296
1297
1298
1299 bool pspolling;
1300 bool offchannel_ps_enabled;
1301
1302
1303
1304
1305 struct ieee80211_sub_if_data *ps_sdata;
1306 struct work_struct dynamic_ps_enable_work;
1307 struct work_struct dynamic_ps_disable_work;
1308 struct timer_list dynamic_ps_timer;
1309 struct notifier_block ifa_notifier;
1310 struct notifier_block ifa6_notifier;
1311
1312
1313
1314
1315
1316 int dynamic_ps_forced_timeout;
1317
1318 int user_power_level;
1319
1320 enum ieee80211_smps_mode smps_mode;
1321
1322 struct work_struct restart_work;
1323
1324#ifdef CONFIG_MAC80211_DEBUGFS
1325 struct local_debugfsdentries {
1326 struct dentry *rcdir;
1327 struct dentry *keys;
1328 } debugfs;
1329#endif
1330
1331
1332
1333
1334 struct delayed_work roc_work;
1335 struct list_head roc_list;
1336 struct work_struct hw_roc_start, hw_roc_done;
1337 unsigned long hw_roc_start_time;
1338 u64 roc_cookie_counter;
1339
1340 struct idr ack_status_frames;
1341 spinlock_t ack_status_lock;
1342
1343 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1344
1345
1346 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1347 struct cfg80211_chan_def monitor_chandef;
1348
1349
1350 u8 ext_capa[8];
1351
1352
1353 struct work_struct tdls_chsw_work;
1354 struct sk_buff_head skb_queue_tdls_chsw;
1355};
1356
1357static inline struct ieee80211_sub_if_data *
1358IEEE80211_DEV_TO_SUB_IF(struct net_device *dev)
1359{
1360 return netdev_priv(dev);
1361}
1362
1363static inline struct ieee80211_sub_if_data *
1364IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1365{
1366 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1367}
1368
1369
1370struct ieee80211_ra_tid {
1371 u8 ra[ETH_ALEN];
1372 u16 tid;
1373};
1374
1375
1376struct ieee80211_csa_ie {
1377 struct cfg80211_chan_def chandef;
1378 u8 mode;
1379 u8 count;
1380 u8 ttl;
1381 u16 pre_value;
1382};
1383
1384
1385struct ieee802_11_elems {
1386 const u8 *ie_start;
1387 size_t total_len;
1388
1389
1390 const struct ieee80211_tdls_lnkie *lnk_id;
1391 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1392 const u8 *ext_capab;
1393 const u8 *ssid;
1394 const u8 *supp_rates;
1395 const u8 *ds_params;
1396 const struct ieee80211_tim_ie *tim;
1397 const u8 *challenge;
1398 const u8 *rsn;
1399 const u8 *erp_info;
1400 const u8 *ext_supp_rates;
1401 const u8 *wmm_info;
1402 const u8 *wmm_param;
1403 const struct ieee80211_ht_cap *ht_cap_elem;
1404 const struct ieee80211_ht_operation *ht_operation;
1405 const struct ieee80211_vht_cap *vht_cap_elem;
1406 const struct ieee80211_vht_operation *vht_operation;
1407 const struct ieee80211_meshconf_ie *mesh_config;
1408 const u8 *mesh_id;
1409 const u8 *peering;
1410 const __le16 *awake_window;
1411 const u8 *preq;
1412 const u8 *prep;
1413 const u8 *perr;
1414 const struct ieee80211_rann_ie *rann;
1415 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1416 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1417 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1418 const u8 *country_elem;
1419 const u8 *pwr_constr_elem;
1420 const u8 *cisco_dtpc_elem;
1421 const struct ieee80211_timeout_interval_ie *timeout_int;
1422 const u8 *opmode_notif;
1423 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1424 const struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1425
1426
1427 u8 ext_capab_len;
1428 u8 ssid_len;
1429 u8 supp_rates_len;
1430 u8 tim_len;
1431 u8 challenge_len;
1432 u8 rsn_len;
1433 u8 ext_supp_rates_len;
1434 u8 wmm_info_len;
1435 u8 wmm_param_len;
1436 u8 mesh_id_len;
1437 u8 peering_len;
1438 u8 preq_len;
1439 u8 prep_len;
1440 u8 perr_len;
1441 u8 country_elem_len;
1442
1443
1444 bool parse_error;
1445};
1446
1447static inline struct ieee80211_local *hw_to_local(
1448 struct ieee80211_hw *hw)
1449{
1450 return container_of(hw, struct ieee80211_local, hw);
1451}
1452
1453static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1454{
1455 return container_of(txq, struct txq_info, txq);
1456}
1457
1458static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr)
1459{
1460 return ether_addr_equal(raddr, addr) ||
1461 is_broadcast_ether_addr(raddr);
1462}
1463
1464static inline bool
1465ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1466{
1467 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1468 status->flag & RX_FLAG_MACTIME_END);
1469 return status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END);
1470}
1471
1472u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1473 struct ieee80211_rx_status *status,
1474 unsigned int mpdu_len,
1475 unsigned int mpdu_offset);
1476int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1477void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1478void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1479 u32 changed);
1480void ieee80211_configure_filter(struct ieee80211_local *local);
1481u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1482
1483u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
1484int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1485 u64 *cookie, gfp_t gfp);
1486
1487
1488void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1489int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1490 struct cfg80211_auth_request *req);
1491int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1492 struct cfg80211_assoc_request *req);
1493int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1494 struct cfg80211_deauth_request *req);
1495int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1496 struct cfg80211_disassoc_request *req);
1497void ieee80211_send_pspoll(struct ieee80211_local *local,
1498 struct ieee80211_sub_if_data *sdata);
1499void ieee80211_recalc_ps(struct ieee80211_local *local);
1500void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1501int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1502void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1503void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1504 struct sk_buff *skb);
1505void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1506void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1507void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1508void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1509 __le16 fc, bool acked);
1510void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1511void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1512void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1513
1514
1515void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1516void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1517void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1518 const u8 *bssid, const u8 *addr, u32 supp_rates);
1519int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1520 struct cfg80211_ibss_params *params);
1521int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1522void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1523void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1524 struct sk_buff *skb);
1525int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1526 struct cfg80211_csa_settings *csa_settings);
1527int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
1528void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1529
1530
1531void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1532void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1533 const u8 *bssid, const u8 *addr, u32 supp_rates);
1534void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1535int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1536 struct ocb_setup *setup);
1537int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1538
1539
1540void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1541void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1542 struct sk_buff *skb);
1543int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1544 struct cfg80211_csa_settings *csa_settings);
1545int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
1546
1547
1548void ieee80211_scan_work(struct work_struct *work);
1549int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1550 const u8 *ssid, u8 ssid_len,
1551 struct ieee80211_channel **channels,
1552 unsigned int n_channels,
1553 enum nl80211_bss_scan_width scan_width);
1554int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1555 struct cfg80211_scan_request *req);
1556void ieee80211_scan_cancel(struct ieee80211_local *local);
1557void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1558void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1559
1560void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1561struct ieee80211_bss *
1562ieee80211_bss_info_update(struct ieee80211_local *local,
1563 struct ieee80211_rx_status *rx_status,
1564 struct ieee80211_mgmt *mgmt,
1565 size_t len,
1566 struct ieee802_11_elems *elems,
1567 struct ieee80211_channel *channel);
1568void ieee80211_rx_bss_put(struct ieee80211_local *local,
1569 struct ieee80211_bss *bss);
1570
1571
1572int
1573__ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1574 struct cfg80211_sched_scan_request *req);
1575int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1576 struct cfg80211_sched_scan_request *req);
1577int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
1578void ieee80211_sched_scan_end(struct ieee80211_local *local);
1579void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1580
1581
1582void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1583void ieee80211_offchannel_return(struct ieee80211_local *local);
1584void ieee80211_roc_setup(struct ieee80211_local *local);
1585void ieee80211_start_next_roc(struct ieee80211_local *local);
1586void ieee80211_roc_purge(struct ieee80211_local *local,
1587 struct ieee80211_sub_if_data *sdata);
1588int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
1589 struct ieee80211_channel *chan,
1590 unsigned int duration, u64 *cookie);
1591int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1592 struct wireless_dev *wdev, u64 cookie);
1593int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
1594 struct cfg80211_mgmt_tx_params *params, u64 *cookie);
1595int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1596 struct wireless_dev *wdev, u64 cookie);
1597
1598
1599void ieee80211_csa_finalize_work(struct work_struct *work);
1600int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1601 struct cfg80211_csa_settings *params);
1602
1603
1604int ieee80211_iface_init(void);
1605void ieee80211_iface_exit(void);
1606int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1607 unsigned char name_assign_type,
1608 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1609 struct vif_params *params);
1610int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1611 enum nl80211_iftype type);
1612void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1613void ieee80211_remove_interfaces(struct ieee80211_local *local);
1614u32 ieee80211_idle_off(struct ieee80211_local *local);
1615void ieee80211_recalc_idle(struct ieee80211_local *local);
1616void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1617 const int offset);
1618int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1619void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
1620int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
1621void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
1622
1623bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
1624void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
1625 bool update_bss);
1626
1627static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
1628{
1629 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
1630}
1631
1632
1633void ieee80211_clear_tx_pending(struct ieee80211_local *local);
1634void ieee80211_tx_pending(unsigned long data);
1635netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
1636 struct net_device *dev);
1637netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
1638 struct net_device *dev);
1639void __ieee80211_subif_start_xmit(struct sk_buff *skb,
1640 struct net_device *dev,
1641 u32 info_flags);
1642void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
1643 struct sk_buff_head *skbs);
1644struct sk_buff *
1645ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
1646 struct sk_buff *skb, u32 info_flags);
1647void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
1648 struct ieee80211_supported_band *sband,
1649 int retry_count, int shift, bool send_to_cooked);
1650
1651void ieee80211_check_fast_xmit(struct sta_info *sta);
1652void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
1653void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
1654void ieee80211_clear_fast_xmit(struct sta_info *sta);
1655
1656
1657void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
1658 struct ieee80211_sta_ht_cap *ht_cap);
1659bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
1660 struct ieee80211_supported_band *sband,
1661 const struct ieee80211_ht_cap *ht_cap_ie,
1662 struct sta_info *sta);
1663void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
1664 const u8 *da, u16 tid,
1665 u16 initiator, u16 reason_code);
1666int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
1667 enum ieee80211_smps_mode smps, const u8 *da,
1668 const u8 *bssid);
1669void ieee80211_request_smps_ap_work(struct work_struct *work);
1670void ieee80211_request_smps_mgd_work(struct work_struct *work);
1671bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
1672 enum ieee80211_smps_mode smps_mode_new);
1673
1674void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1675 u16 initiator, u16 reason, bool stop);
1676void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
1677 u16 initiator, u16 reason, bool stop);
1678void __ieee80211_start_rx_ba_session(struct sta_info *sta,
1679 u8 dialog_token, u16 timeout,
1680 u16 start_seq_num, u16 ba_policy, u16 tid,
1681 u16 buf_size, bool tx, bool auto_seq);
1682void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
1683 enum ieee80211_agg_stop_reason reason);
1684void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
1685 struct sta_info *sta,
1686 struct ieee80211_mgmt *mgmt, size_t len);
1687void ieee80211_process_addba_resp(struct ieee80211_local *local,
1688 struct sta_info *sta,
1689 struct ieee80211_mgmt *mgmt,
1690 size_t len);
1691void ieee80211_process_addba_request(struct ieee80211_local *local,
1692 struct sta_info *sta,
1693 struct ieee80211_mgmt *mgmt,
1694 size_t len);
1695
1696int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1697 enum ieee80211_agg_stop_reason reason);
1698int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
1699 enum ieee80211_agg_stop_reason reason);
1700void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid);
1701void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid);
1702void ieee80211_ba_session_work(struct work_struct *work);
1703void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
1704void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
1705
1706u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
1707
1708
1709void
1710ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
1711 struct ieee80211_supported_band *sband,
1712 const struct ieee80211_vht_cap *vht_cap_ie,
1713 struct sta_info *sta);
1714enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta);
1715enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta);
1716void ieee80211_sta_set_rx_nss(struct sta_info *sta);
1717u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1718 struct sta_info *sta, u8 opmode,
1719 enum ieee80211_band band);
1720void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
1721 struct sta_info *sta, u8 opmode,
1722 enum ieee80211_band band);
1723void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
1724 struct ieee80211_sta_vht_cap *vht_cap);
1725void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
1726 u16 vht_mask[NL80211_VHT_NSS_MAX]);
1727
1728
1729void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
1730 struct ieee80211_mgmt *mgmt,
1731 size_t len);
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
1749 struct ieee802_11_elems *elems,
1750 enum ieee80211_band current_band,
1751 u32 sta_flags, u8 *bssid,
1752 struct ieee80211_csa_ie *csa_ie);
1753
1754
1755int ieee80211_reconfig(struct ieee80211_local *local);
1756void ieee80211_stop_device(struct ieee80211_local *local);
1757
1758int __ieee80211_suspend(struct ieee80211_hw *hw,
1759 struct cfg80211_wowlan *wowlan);
1760
1761static inline int __ieee80211_resume(struct ieee80211_hw *hw)
1762{
1763 struct ieee80211_local *local = hw_to_local(hw);
1764
1765 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
1766 !test_bit(SCAN_COMPLETED, &local->scanning),
1767 "%s: resume with hardware scan still in progress\n",
1768 wiphy_name(hw->wiphy));
1769
1770 return ieee80211_reconfig(hw_to_local(hw));
1771}
1772
1773
1774extern const void *const mac80211_wiphy_privid;
1775int ieee80211_frame_duration(enum ieee80211_band band, size_t len,
1776 int rate, int erp, int short_preamble,
1777 int shift);
1778void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
1779 bool bss_notify, bool enable_qos);
1780void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
1781 struct sta_info *sta, struct sk_buff *skb);
1782
1783void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1784 struct sk_buff *skb, int tid,
1785 enum ieee80211_band band);
1786
1787static inline void
1788ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
1789 struct sk_buff *skb, int tid,
1790 enum ieee80211_band band)
1791{
1792 rcu_read_lock();
1793 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
1794 rcu_read_unlock();
1795}
1796
1797static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
1798 struct sk_buff *skb, int tid)
1799{
1800 struct ieee80211_chanctx_conf *chanctx_conf;
1801
1802 rcu_read_lock();
1803 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
1804 if (WARN_ON(!chanctx_conf)) {
1805 rcu_read_unlock();
1806 kfree_skb(skb);
1807 return;
1808 }
1809
1810 __ieee80211_tx_skb_tid_band(sdata, skb, tid,
1811 chanctx_conf->def.chan->band);
1812 rcu_read_unlock();
1813}
1814
1815static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
1816 struct sk_buff *skb)
1817{
1818
1819 ieee80211_tx_skb_tid(sdata, skb, 7);
1820}
1821
1822u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
1823 struct ieee802_11_elems *elems,
1824 u64 filter, u32 crc);
1825static inline void ieee802_11_parse_elems(const u8 *start, size_t len,
1826 bool action,
1827 struct ieee802_11_elems *elems)
1828{
1829 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0);
1830}
1831
1832static inline bool ieee80211_rx_reorder_ready(struct sk_buff_head *frames)
1833{
1834 struct sk_buff *tail = skb_peek_tail(frames);
1835 struct ieee80211_rx_status *status;
1836
1837 if (!tail)
1838 return false;
1839
1840 status = IEEE80211_SKB_RXCB(tail);
1841 if (status->flag & RX_FLAG_AMSDU_MORE)
1842 return false;
1843
1844 return true;
1845}
1846
1847extern const int ieee802_1d_to_ac[8];
1848
1849static inline int ieee80211_ac_from_tid(int tid)
1850{
1851 return ieee802_1d_to_ac[tid & 7];
1852}
1853
1854void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
1855void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
1856void ieee80211_dynamic_ps_timer(unsigned long data);
1857void ieee80211_send_nullfunc(struct ieee80211_local *local,
1858 struct ieee80211_sub_if_data *sdata,
1859 bool powersave);
1860void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
1861 struct ieee80211_hdr *hdr);
1862void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
1863 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
1864
1865void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
1866 unsigned long queues,
1867 enum queue_stop_reason reason,
1868 bool refcounted);
1869void ieee80211_stop_vif_queues(struct ieee80211_local *local,
1870 struct ieee80211_sub_if_data *sdata,
1871 enum queue_stop_reason reason);
1872void ieee80211_wake_vif_queues(struct ieee80211_local *local,
1873 struct ieee80211_sub_if_data *sdata,
1874 enum queue_stop_reason reason);
1875void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
1876 unsigned long queues,
1877 enum queue_stop_reason reason,
1878 bool refcounted);
1879void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
1880 enum queue_stop_reason reason,
1881 bool refcounted);
1882void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
1883 enum queue_stop_reason reason,
1884 bool refcounted);
1885void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
1886void ieee80211_add_pending_skb(struct ieee80211_local *local,
1887 struct sk_buff *skb);
1888void ieee80211_add_pending_skbs(struct ieee80211_local *local,
1889 struct sk_buff_head *skbs);
1890void ieee80211_flush_queues(struct ieee80211_local *local,
1891 struct ieee80211_sub_if_data *sdata, bool drop);
1892void __ieee80211_flush_queues(struct ieee80211_local *local,
1893 struct ieee80211_sub_if_data *sdata,
1894 unsigned int queues, bool drop);
1895
1896static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
1897{
1898
1899
1900
1901
1902
1903
1904 if (local->quiescing)
1905 return false;
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920 if (local->suspended)
1921 return false;
1922
1923 return true;
1924}
1925
1926void ieee80211_init_tx_queue(struct ieee80211_sub_if_data *sdata,
1927 struct sta_info *sta,
1928 struct txq_info *txq, int tid);
1929void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
1930 u16 transaction, u16 auth_alg, u16 status,
1931 const u8 *extra, size_t extra_len, const u8 *bssid,
1932 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
1933 u32 tx_flags);
1934void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
1935 const u8 *bssid, u16 stype, u16 reason,
1936 bool send_frame, u8 *frame_buf);
1937int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer,
1938 size_t buffer_len,
1939 struct ieee80211_scan_ies *ie_desc,
1940 const u8 *ie, size_t ie_len,
1941 u8 bands_used, u32 *rate_masks,
1942 struct cfg80211_chan_def *chandef);
1943struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
1944 const u8 *src, const u8 *dst,
1945 u32 ratemask,
1946 struct ieee80211_channel *chan,
1947 const u8 *ssid, size_t ssid_len,
1948 const u8 *ie, size_t ie_len,
1949 bool directed);
1950void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata,
1951 const u8 *src, const u8 *dst,
1952 const u8 *ssid, size_t ssid_len,
1953 const u8 *ie, size_t ie_len,
1954 u32 ratemask, bool directed, u32 tx_flags,
1955 struct ieee80211_channel *channel, bool scan);
1956
1957u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
1958 struct ieee802_11_elems *elems,
1959 enum ieee80211_band band, u32 *basic_rates);
1960int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
1961 enum ieee80211_smps_mode smps_mode);
1962int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
1963 enum ieee80211_smps_mode smps_mode);
1964void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
1965void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
1966
1967size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
1968u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1969 u16 cap);
1970u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
1971 const struct cfg80211_chan_def *chandef,
1972 u16 prot_mode, bool rifs_mode);
1973u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1974 u32 cap);
1975u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
1976 const struct cfg80211_chan_def *chandef);
1977int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
1978 const struct ieee80211_supported_band *sband,
1979 const u8 *srates, int srates_len, u32 *rates);
1980int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
1981 struct sk_buff *skb, bool need_basic,
1982 enum ieee80211_band band);
1983int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
1984 struct sk_buff *skb, bool need_basic,
1985 enum ieee80211_band band);
1986u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
1987
1988
1989void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
1990 const struct ieee80211_ht_operation *ht_oper,
1991 struct cfg80211_chan_def *chandef);
1992void ieee80211_vht_oper_to_chandef(struct ieee80211_channel *control_chan,
1993 const struct ieee80211_vht_operation *oper,
1994 struct cfg80211_chan_def *chandef);
1995u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
1996
1997int __must_check
1998ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
1999 const struct cfg80211_chan_def *chandef,
2000 enum ieee80211_chanctx_mode mode);
2001int __must_check
2002ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata,
2003 const struct cfg80211_chan_def *chandef,
2004 enum ieee80211_chanctx_mode mode,
2005 bool radar_required);
2006int __must_check
2007ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata);
2008int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata);
2009
2010int __must_check
2011ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata,
2012 const struct cfg80211_chan_def *chandef,
2013 u32 *changed);
2014void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata);
2015void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata);
2016void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata,
2017 bool clear);
2018int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2019 struct ieee80211_chanctx *ctx);
2020
2021void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2022 struct ieee80211_chanctx *chanctx);
2023void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2024 struct ieee80211_chanctx *ctx);
2025bool ieee80211_is_radar_required(struct ieee80211_local *local);
2026
2027void ieee80211_dfs_cac_timer(unsigned long data);
2028void ieee80211_dfs_cac_timer_work(struct work_struct *work);
2029void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2030void ieee80211_dfs_radar_detected_work(struct work_struct *work);
2031int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2032 struct cfg80211_csa_settings *csa_settings);
2033
2034bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs);
2035bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n);
2036const struct ieee80211_cipher_scheme *
2037ieee80211_cs_get(struct ieee80211_local *local, u32 cipher,
2038 enum nl80211_iftype iftype);
2039int ieee80211_cs_headroom(struct ieee80211_local *local,
2040 struct cfg80211_crypto_settings *crypto,
2041 enum nl80211_iftype iftype);
2042void ieee80211_recalc_dtim(struct ieee80211_local *local,
2043 struct ieee80211_sub_if_data *sdata);
2044int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2045 const struct cfg80211_chan_def *chandef,
2046 enum ieee80211_chanctx_mode chanmode,
2047 u8 radar_detect);
2048int ieee80211_max_num_channels(struct ieee80211_local *local);
2049enum nl80211_chan_width ieee80211_get_sta_bw(struct ieee80211_sta *sta);
2050void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2051 struct ieee80211_chanctx *ctx);
2052
2053
2054int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2055 const u8 *peer, u8 action_code, u8 dialog_token,
2056 u16 status_code, u32 peer_capability,
2057 bool initiator, const u8 *extra_ies,
2058 size_t extra_ies_len);
2059int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2060 const u8 *peer, enum nl80211_tdls_operation oper);
2061void ieee80211_tdls_peer_del_work(struct work_struct *wk);
2062int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2063 const u8 *addr, u8 oper_class,
2064 struct cfg80211_chan_def *chandef);
2065void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2066 struct net_device *dev,
2067 const u8 *addr);
2068void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
2069void ieee80211_tdls_chsw_work(struct work_struct *wk);
2070
2071extern const struct ethtool_ops ieee80211_ethtool_ops;
2072
2073#ifdef CONFIG_MAC80211_NOINLINE
2074#define debug_noinline noinline
2075#else
2076#define debug_noinline
2077#endif
2078
2079#endif
2080