1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright 2002-2005, Instant802 Networks, Inc. 4 * Copyright 2005, Devicescape Software, Inc. 5 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> 6 * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net> 7 * Copyright 2013-2015 Intel Mobile Communications GmbH 8 * Copyright (C) 2018-2025 Intel Corporation 9 */ 10 11 #ifndef IEEE80211_I_H 12 #define IEEE80211_I_H 13 14 #include <linux/kernel.h> 15 #include <linux/device.h> 16 #include <linux/if_ether.h> 17 #include <linux/interrupt.h> 18 #include <linux/list.h> 19 #include <linux/netdevice.h> 20 #include <linux/skbuff.h> 21 #include <linux/workqueue.h> 22 #include <linux/types.h> 23 #include <linux/spinlock.h> 24 #include <linux/etherdevice.h> 25 #include <linux/leds.h> 26 #include <linux/idr.h> 27 #include <linux/rhashtable.h> 28 #include <linux/rbtree.h> 29 #include <kunit/visibility.h> 30 #include <net/ieee80211_radiotap.h> 31 #include <net/cfg80211.h> 32 #include <net/mac80211.h> 33 #include <net/fq.h> 34 #include "key.h" 35 #include "sta_info.h" 36 #include "debug.h" 37 #include "drop.h" 38 39 extern const struct cfg80211_ops mac80211_config_ops; 40 41 struct ieee80211_local; 42 struct ieee80211_mesh_fast_tx; 43 44 /* Maximum number of broadcast/multicast frames to buffer when some of the 45 * associated stations are using power saving. */ 46 #define AP_MAX_BC_BUFFER 128 47 48 /* Maximum number of frames buffered to all STAs, including multicast frames. 49 * Note: increasing this limit increases the potential memory requirement. Each 50 * frame can be up to about 2 kB long. */ 51 #define TOTAL_MAX_TX_BUFFER 512 52 53 /* Required encryption head and tailroom */ 54 #define IEEE80211_ENCRYPT_HEADROOM 8 55 #define IEEE80211_ENCRYPT_TAILROOM 18 56 57 /* power level hasn't been configured (or set to automatic) */ 58 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN 59 60 /* 61 * Some APs experience problems when working with U-APSD. Decreasing the 62 * probability of that happening by using legacy mode for all ACs but VO isn't 63 * enough. 64 * 65 * Cisco 4410N originally forced us to enable VO by default only because it 66 * treated non-VO ACs as legacy. 67 * 68 * However some APs (notably Netgear R7000) silently reclassify packets to 69 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval 70 * clients would never see some frames (e.g. ARP responses) or would fetch them 71 * accidentally after a long time. 72 * 73 * It makes little sense to enable u-APSD queues by default because it needs 74 * userspace applications to be aware of it to actually take advantage of the 75 * possible additional powersavings. Implicitly depending on driver autotrigger 76 * frame support doesn't make much sense. 77 */ 78 #define IEEE80211_DEFAULT_UAPSD_QUEUES 0 79 80 #define IEEE80211_DEFAULT_MAX_SP_LEN \ 81 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 82 83 extern const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS]; 84 85 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */) 86 87 #define IEEE80211_MAX_NAN_INSTANCE_ID 255 88 89 enum ieee80211_status_data { 90 IEEE80211_STATUS_TYPE_MASK = 0x00f, 91 IEEE80211_STATUS_TYPE_INVALID = 0, 92 IEEE80211_STATUS_TYPE_SMPS = 1, 93 IEEE80211_STATUS_TYPE_NEG_TTLM = 2, 94 IEEE80211_STATUS_SUBDATA_MASK = 0x1ff0, 95 }; 96 97 static inline bool ieee80211_sta_keep_active(struct sta_info * sta,u8 ac)98 ieee80211_sta_keep_active(struct sta_info *sta, u8 ac) 99 { 100 /* Keep a station's queues on the active list for deficit accounting 101 * purposes if it was active or queued during the last 100ms. 102 */ 103 return time_before_eq(jiffies, sta->airtime[ac].last_active + HZ / 10); 104 } 105 106 struct ieee80211_bss { 107 u32 device_ts_beacon, device_ts_presp; 108 109 bool wmm_used; 110 bool uapsd_supported; 111 112 #define IEEE80211_MAX_SUPP_RATES 32 113 u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; 114 size_t supp_rates_len; 115 struct ieee80211_rate *beacon_rate; 116 117 u32 vht_cap_info; 118 119 /* 120 * During association, we save an ERP value from a probe response so 121 * that we can feed ERP info to the driver when handling the 122 * association completes. these fields probably won't be up-to-date 123 * otherwise, you probably don't want to use them. 124 */ 125 bool has_erp_value; 126 u8 erp_value; 127 128 /* Keep track of the corruption of the last beacon/probe response. */ 129 u8 corrupt_data; 130 131 /* Keep track of what bits of information we have valid info for. */ 132 u8 valid_data; 133 }; 134 135 /** 136 * enum ieee80211_bss_corrupt_data_flags - BSS data corruption flags 137 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted 138 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted 139 * 140 * These are bss flags that are attached to a bss in the 141 * @corrupt_data field of &struct ieee80211_bss. 142 */ 143 enum ieee80211_bss_corrupt_data_flags { 144 IEEE80211_BSS_CORRUPT_BEACON = BIT(0), 145 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1) 146 }; 147 148 /** 149 * enum ieee80211_bss_valid_data_flags - BSS valid data flags 150 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE 151 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE 152 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE 153 * 154 * These are bss flags that are attached to a bss in the 155 * @valid_data field of &struct ieee80211_bss. They show which parts 156 * of the data structure were received as a result of an un-corrupted 157 * beacon/probe response. 158 */ 159 enum ieee80211_bss_valid_data_flags { 160 IEEE80211_BSS_VALID_WMM = BIT(1), 161 IEEE80211_BSS_VALID_RATES = BIT(2), 162 IEEE80211_BSS_VALID_ERP = BIT(3) 163 }; 164 165 typedef unsigned __bitwise ieee80211_tx_result; 166 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u) 167 #define TX_DROP ((__force ieee80211_tx_result) 1u) 168 #define TX_QUEUED ((__force ieee80211_tx_result) 2u) 169 170 #define IEEE80211_TX_UNICAST BIT(1) 171 #define IEEE80211_TX_PS_BUFFERED BIT(2) 172 173 struct ieee80211_tx_data { 174 struct sk_buff *skb; 175 struct sk_buff_head skbs; 176 struct ieee80211_local *local; 177 struct ieee80211_sub_if_data *sdata; 178 struct sta_info *sta; 179 struct ieee80211_key *key; 180 struct ieee80211_tx_rate rate; 181 182 unsigned int flags; 183 }; 184 185 /** 186 * enum ieee80211_packet_rx_flags - packet RX flags 187 * @IEEE80211_RX_AMSDU: a-MSDU packet 188 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed 189 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering 190 * 191 * These are per-frame flags that are attached to a frame in the 192 * @rx_flags field of &struct ieee80211_rx_status. 193 */ 194 enum ieee80211_packet_rx_flags { 195 IEEE80211_RX_AMSDU = BIT(3), 196 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4), 197 IEEE80211_RX_DEFERRED_RELEASE = BIT(5), 198 }; 199 200 /** 201 * enum ieee80211_rx_flags - RX data flags 202 * 203 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported 204 * to cfg80211_report_obss_beacon(). 205 * 206 * These flags are used across handling multiple interfaces 207 * for a single frame. 208 */ 209 enum ieee80211_rx_flags { 210 IEEE80211_RX_BEACON_REPORTED = BIT(0), 211 }; 212 213 struct ieee80211_rx_data { 214 struct list_head *list; 215 struct sk_buff *skb; 216 struct ieee80211_local *local; 217 struct ieee80211_sub_if_data *sdata; 218 struct ieee80211_link_data *link; 219 struct sta_info *sta; 220 struct link_sta_info *link_sta; 221 struct ieee80211_key *key; 222 223 unsigned int flags; 224 225 /* 226 * Index into sequence numbers array, 0..16 227 * since the last (16) is used for non-QoS, 228 * will be 16 on non-QoS frames. 229 */ 230 int seqno_idx; 231 232 /* 233 * Index into the security IV/PN arrays, 0..16 234 * since the last (16) is used for CCMP-encrypted 235 * management frames, will be set to 16 on mgmt 236 * frames and 0 on non-QoS frames. 237 */ 238 int security_idx; 239 240 int link_id; 241 242 union { 243 struct { 244 u32 iv32; 245 u16 iv16; 246 } tkip; 247 struct { 248 u8 pn[IEEE80211_CCMP_PN_LEN]; 249 } ccm_gcm; 250 }; 251 }; 252 253 struct ieee80211_csa_settings { 254 const u16 *counter_offsets_beacon; 255 const u16 *counter_offsets_presp; 256 257 int n_counter_offsets_beacon; 258 int n_counter_offsets_presp; 259 260 u8 count; 261 }; 262 263 struct ieee80211_color_change_settings { 264 u16 counter_offset_beacon; 265 u16 counter_offset_presp; 266 u8 count; 267 }; 268 269 struct beacon_data { 270 u8 *head, *tail; 271 int head_len, tail_len; 272 struct ieee80211_meshconf_ie *meshconf; 273 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM]; 274 u8 cntdwn_current_counter; 275 struct cfg80211_mbssid_elems *mbssid_ies; 276 struct cfg80211_rnr_elems *rnr_ies; 277 struct rcu_head rcu_head; 278 }; 279 280 struct probe_resp { 281 struct rcu_head rcu_head; 282 int len; 283 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM]; 284 u8 data[]; 285 }; 286 287 struct fils_discovery_data { 288 struct rcu_head rcu_head; 289 int len; 290 u8 data[]; 291 }; 292 293 struct unsol_bcast_probe_resp_data { 294 struct rcu_head rcu_head; 295 int len; 296 u8 data[]; 297 }; 298 299 struct ps_data { 300 /* yes, this looks ugly, but guarantees that we can later use 301 * bitmap_empty :) 302 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */ 303 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)] 304 __aligned(__alignof__(unsigned long)); 305 struct sk_buff_head bc_buf; 306 atomic_t num_sta_ps; /* number of stations in PS mode */ 307 int dtim_count; 308 bool dtim_bc_mc; 309 }; 310 311 struct ieee80211_if_ap { 312 struct list_head vlans; /* write-protected with RTNL and local->mtx */ 313 314 struct ps_data ps; 315 atomic_t num_mcast_sta; /* number of stations receiving multicast */ 316 317 bool multicast_to_unicast; 318 bool active; 319 }; 320 321 struct ieee80211_if_vlan { 322 struct list_head list; /* write-protected with RTNL and local->mtx */ 323 324 /* used for all tx if the VLAN is configured to 4-addr mode */ 325 struct sta_info __rcu *sta; 326 atomic_t num_mcast_sta; /* number of stations receiving multicast */ 327 }; 328 329 struct mesh_stats { 330 __u32 fwded_mcast; /* Mesh forwarded multicast frames */ 331 __u32 fwded_unicast; /* Mesh forwarded unicast frames */ 332 __u32 fwded_frames; /* Mesh total forwarded frames */ 333 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/ 334 __u32 dropped_frames_no_route; /* Not transmitted, no route found */ 335 }; 336 337 #define PREQ_Q_F_START 0x1 338 #define PREQ_Q_F_REFRESH 0x2 339 struct mesh_preq_queue { 340 struct list_head list; 341 u8 dst[ETH_ALEN]; 342 u8 flags; 343 }; 344 345 struct ieee80211_roc_work { 346 struct list_head list; 347 348 struct ieee80211_sub_if_data *sdata; 349 350 struct ieee80211_channel *chan; 351 352 bool started, abort, hw_begun, notified; 353 bool on_channel; 354 355 unsigned long start_time; 356 357 u32 duration, req_duration; 358 struct sk_buff *frame; 359 u64 cookie, mgmt_tx_cookie; 360 enum ieee80211_roc_type type; 361 }; 362 363 /* flags used in struct ieee80211_if_managed.flags */ 364 enum ieee80211_sta_flags { 365 IEEE80211_STA_CONNECTION_POLL = BIT(1), 366 IEEE80211_STA_CONTROL_PORT = BIT(2), 367 IEEE80211_STA_MFP_ENABLED = BIT(6), 368 IEEE80211_STA_UAPSD_ENABLED = BIT(7), 369 IEEE80211_STA_NULLFUNC_ACKED = BIT(8), 370 IEEE80211_STA_ENABLE_RRM = BIT(15), 371 }; 372 373 enum ieee80211_conn_mode { 374 IEEE80211_CONN_MODE_S1G, 375 IEEE80211_CONN_MODE_LEGACY, 376 IEEE80211_CONN_MODE_HT, 377 IEEE80211_CONN_MODE_VHT, 378 IEEE80211_CONN_MODE_HE, 379 IEEE80211_CONN_MODE_EHT, 380 }; 381 382 #define IEEE80211_CONN_MODE_HIGHEST IEEE80211_CONN_MODE_EHT 383 384 enum ieee80211_conn_bw_limit { 385 IEEE80211_CONN_BW_LIMIT_20, 386 IEEE80211_CONN_BW_LIMIT_40, 387 IEEE80211_CONN_BW_LIMIT_80, 388 IEEE80211_CONN_BW_LIMIT_160, /* also 80+80 */ 389 IEEE80211_CONN_BW_LIMIT_320, 390 }; 391 392 struct ieee80211_conn_settings { 393 enum ieee80211_conn_mode mode; 394 enum ieee80211_conn_bw_limit bw_limit; 395 }; 396 397 extern const struct ieee80211_conn_settings ieee80211_conn_settings_unlimited; 398 399 struct ieee80211_mgd_auth_data { 400 struct cfg80211_bss *bss; 401 unsigned long timeout; 402 int tries; 403 u16 algorithm, expected_transaction; 404 405 unsigned long userspace_selectors[BITS_TO_LONGS(128)]; 406 407 u8 key[WLAN_KEY_LEN_WEP104]; 408 u8 key_len, key_idx; 409 bool done, waiting; 410 bool peer_confirmed; 411 bool timeout_started; 412 int link_id; 413 414 u8 ap_addr[ETH_ALEN] __aligned(2); 415 416 u16 sae_trans, sae_status; 417 size_t data_len; 418 u8 data[]; 419 }; 420 421 struct ieee80211_mgd_assoc_data { 422 struct { 423 struct cfg80211_bss *bss; 424 425 u8 addr[ETH_ALEN] __aligned(2); 426 427 u8 ap_ht_param; 428 429 struct ieee80211_vht_cap ap_vht_cap; 430 431 size_t elems_len; 432 u8 *elems; /* pointing to inside ie[] below */ 433 434 struct ieee80211_conn_settings conn; 435 436 u16 status; 437 438 bool disabled; 439 } link[IEEE80211_MLD_MAX_NUM_LINKS]; 440 441 u8 ap_addr[ETH_ALEN] __aligned(2); 442 443 /* this is for a workaround, so we use it only for non-MLO */ 444 const u8 *supp_rates; 445 u8 supp_rates_len; 446 447 unsigned long timeout; 448 int tries; 449 450 u8 prev_ap_addr[ETH_ALEN]; 451 u8 ssid[IEEE80211_MAX_SSID_LEN]; 452 u8 ssid_len; 453 bool wmm, uapsd; 454 bool need_beacon; 455 bool synced; 456 bool timeout_started; 457 bool comeback; /* whether the AP has requested association comeback */ 458 bool s1g; 459 bool spp_amsdu; 460 461 s8 assoc_link_id; 462 463 __le16 ext_mld_capa_ops; 464 465 u8 fils_nonces[2 * FILS_NONCE_LEN]; 466 u8 fils_kek[FILS_MAX_KEK_LEN]; 467 size_t fils_kek_len; 468 469 size_t ie_len; 470 u8 *ie_pos; /* used to fill ie[] with link[].elems */ 471 u8 ie[]; 472 }; 473 474 struct ieee80211_sta_tx_tspec { 475 /* timestamp of the first packet in the time slice */ 476 unsigned long time_slice_start; 477 478 u32 admitted_time; /* in usecs, unlike over the air */ 479 u8 tsid; 480 s8 up; /* signed to be able to invalidate with -1 during teardown */ 481 482 /* consumed TX time in microseconds in the time slice */ 483 u32 consumed_tx_time; 484 enum { 485 TX_TSPEC_ACTION_NONE = 0, 486 TX_TSPEC_ACTION_DOWNGRADE, 487 TX_TSPEC_ACTION_STOP_DOWNGRADE, 488 } action; 489 bool downgraded; 490 }; 491 492 /* Advertised TID-to-link mapping info */ 493 struct ieee80211_adv_ttlm_info { 494 /* time in TUs at which the new mapping is established, or 0 if there is 495 * no planned advertised TID-to-link mapping 496 */ 497 u16 switch_time; 498 u32 duration; /* duration of the planned T2L map in TUs */ 499 u16 map; /* map of usable links for all TIDs */ 500 bool active; /* whether the advertised mapping is active or not */ 501 }; 502 503 DECLARE_EWMA(beacon_signal, 4, 4) 504 505 struct ieee80211_if_managed { 506 struct timer_list timer; 507 struct timer_list conn_mon_timer; 508 struct timer_list bcn_mon_timer; 509 struct wiphy_work monitor_work; 510 struct wiphy_work beacon_connection_loss_work; 511 struct wiphy_work csa_connection_drop_work; 512 513 unsigned long beacon_timeout; 514 unsigned long probe_timeout; 515 int probe_send_count; 516 bool nullfunc_failed; 517 u8 connection_loss:1, 518 driver_disconnect:1, 519 reconnect:1, 520 associated:1; 521 522 struct ieee80211_mgd_auth_data *auth_data; 523 struct ieee80211_mgd_assoc_data *assoc_data; 524 525 unsigned long userspace_selectors[BITS_TO_LONGS(128)]; 526 527 bool powersave; /* powersave requested for this iface */ 528 bool broken_ap; /* AP is broken -- turn off powersave */ 529 530 unsigned int flags; 531 532 u16 mcast_seq_last; 533 534 bool status_acked; 535 bool status_received; 536 __le16 status_fc; 537 538 enum { 539 IEEE80211_MFP_DISABLED, 540 IEEE80211_MFP_OPTIONAL, 541 IEEE80211_MFP_REQUIRED 542 } mfp; /* management frame protection */ 543 544 /* 545 * Bitmask of enabled u-apsd queues, 546 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association 547 * to take effect. 548 */ 549 unsigned int uapsd_queues; 550 551 /* 552 * Maximum number of buffered frames AP can deliver during a 553 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar. 554 * Needs a new association to take effect. 555 */ 556 unsigned int uapsd_max_sp_len; 557 558 u8 use_4addr; 559 560 /* 561 * State variables for keeping track of RSSI of the AP currently 562 * connected to and informing driver when RSSI has gone 563 * below/above a certain threshold. 564 */ 565 int rssi_min_thold, rssi_max_thold; 566 567 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ 568 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ 569 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */ 570 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */ 571 struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */ 572 struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */ 573 574 /* TDLS support */ 575 u8 tdls_peer[ETH_ALEN] __aligned(2); 576 struct wiphy_delayed_work tdls_peer_del_work; 577 struct sk_buff *orig_teardown_skb; /* The original teardown skb */ 578 struct sk_buff *teardown_skb; /* A copy to send through the AP */ 579 spinlock_t teardown_lock; /* To lock changing teardown_skb */ 580 bool tdls_wider_bw_prohibited; 581 582 /* WMM-AC TSPEC support */ 583 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS]; 584 /* Use a separate work struct so that we can do something here 585 * while the sdata->work is flushing the queues, for example. 586 * otherwise, in scenarios where we hardly get any traffic out 587 * on the BE queue, but there's a lot of VO traffic, we might 588 * get stuck in a downgraded situation and flush takes forever. 589 */ 590 struct wiphy_delayed_work tx_tspec_wk; 591 592 /* Information elements from the last transmitted (Re)Association 593 * Request frame. 594 */ 595 u8 *assoc_req_ies; 596 size_t assoc_req_ies_len; 597 598 struct wiphy_delayed_work ml_reconf_work; 599 u16 removed_links; 600 601 /* TID-to-link mapping support */ 602 struct wiphy_delayed_work ttlm_work; 603 struct ieee80211_adv_ttlm_info ttlm_info; 604 struct wiphy_work teardown_ttlm_work; 605 606 /* dialog token enumerator for neg TTLM request */ 607 u8 dialog_token_alloc; 608 struct wiphy_delayed_work neg_ttlm_timeout_work; 609 610 /* Locally initiated multi-link reconfiguration */ 611 struct { 612 struct ieee80211_mgd_assoc_data *add_links_data; 613 struct wiphy_delayed_work wk; 614 u16 removed_links; 615 u16 added_links; 616 u8 dialog_token; 617 } reconf; 618 619 /* Support for epcs */ 620 struct { 621 bool enabled; 622 u8 dialog_token; 623 } epcs; 624 }; 625 626 struct ieee80211_if_ibss { 627 struct timer_list timer; 628 struct wiphy_work csa_connection_drop_work; 629 630 unsigned long last_scan_completed; 631 632 u32 basic_rates; 633 634 bool fixed_bssid; 635 bool fixed_channel; 636 bool privacy; 637 638 bool control_port; 639 bool userspace_handles_dfs; 640 641 u8 bssid[ETH_ALEN] __aligned(2); 642 u8 ssid[IEEE80211_MAX_SSID_LEN]; 643 u8 ssid_len, ie_len; 644 u8 *ie; 645 struct cfg80211_chan_def chandef; 646 647 unsigned long ibss_join_req; 648 /* probe response/beacon for IBSS */ 649 struct beacon_data __rcu *presp; 650 651 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ 652 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ 653 654 spinlock_t incomplete_lock; 655 struct list_head incomplete_stations; 656 657 enum { 658 IEEE80211_IBSS_MLME_SEARCH, 659 IEEE80211_IBSS_MLME_JOINED, 660 } state; 661 }; 662 663 /** 664 * struct ieee80211_if_ocb - OCB mode state 665 * 666 * @housekeeping_timer: timer for periodic invocation of a housekeeping task 667 * @wrkq_flags: OCB deferred task action 668 * @incomplete_lock: delayed STA insertion lock 669 * @incomplete_stations: list of STAs waiting for delayed insertion 670 * @joined: indication if the interface is connected to an OCB network 671 */ 672 struct ieee80211_if_ocb { 673 struct timer_list housekeeping_timer; 674 unsigned long wrkq_flags; 675 676 spinlock_t incomplete_lock; 677 struct list_head incomplete_stations; 678 679 bool joined; 680 }; 681 682 /** 683 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface 684 * 685 * these declarations define the interface, which enables 686 * vendor-specific mesh synchronization 687 * 688 * @rx_bcn_presp: beacon/probe response was received 689 * @adjust_tsf: TSF adjustment method 690 */ 691 struct ieee80211_mesh_sync_ops { 692 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, u16 stype, 693 struct ieee80211_mgmt *mgmt, unsigned int len, 694 const struct ieee80211_meshconf_ie *mesh_cfg, 695 struct ieee80211_rx_status *rx_status); 696 697 /* should be called with beacon_data under RCU read lock */ 698 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata, 699 struct beacon_data *beacon); 700 /* add other framework functions here */ 701 }; 702 703 struct mesh_csa_settings { 704 struct rcu_head rcu_head; 705 struct cfg80211_csa_settings settings; 706 }; 707 708 /** 709 * struct mesh_table - mesh hash table 710 * 711 * @known_gates: list of known mesh gates and their mpaths by the station. The 712 * gate's mpath may or may not be resolved and active. 713 * @gates_lock: protects updates to known_gates 714 * @rhead: the rhashtable containing struct mesh_paths, keyed by dest addr 715 * @walk_head: linked list containing all mesh_path objects 716 * @walk_lock: lock protecting walk_head 717 * @entries: number of entries in the table 718 */ 719 struct mesh_table { 720 struct hlist_head known_gates; 721 spinlock_t gates_lock; 722 struct rhashtable rhead; 723 struct hlist_head walk_head; 724 spinlock_t walk_lock; 725 atomic_t entries; /* Up to MAX_MESH_NEIGHBOURS */ 726 }; 727 728 /** 729 * struct mesh_tx_cache - mesh fast xmit header cache 730 * 731 * @rht: hash table containing struct ieee80211_mesh_fast_tx, using skb DA as key 732 * @walk_head: linked list containing all ieee80211_mesh_fast_tx objects 733 * @walk_lock: lock protecting walk_head and rht 734 */ 735 struct mesh_tx_cache { 736 struct rhashtable rht; 737 struct hlist_head walk_head; 738 spinlock_t walk_lock; 739 }; 740 741 struct ieee80211_if_mesh { 742 struct timer_list housekeeping_timer; 743 struct timer_list mesh_path_timer; 744 struct timer_list mesh_path_root_timer; 745 746 unsigned long wrkq_flags; 747 unsigned long mbss_changed[64 / BITS_PER_LONG]; 748 749 bool userspace_handles_dfs; 750 751 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN]; 752 size_t mesh_id_len; 753 /* Active Path Selection Protocol Identifier */ 754 u8 mesh_pp_id; 755 /* Active Path Selection Metric Identifier */ 756 u8 mesh_pm_id; 757 /* Congestion Control Mode Identifier */ 758 u8 mesh_cc_id; 759 /* Synchronization Protocol Identifier */ 760 u8 mesh_sp_id; 761 /* Authentication Protocol Identifier */ 762 u8 mesh_auth_id; 763 /* Local mesh Sequence Number */ 764 u32 sn; 765 /* Last used PREQ ID */ 766 u32 preq_id; 767 atomic_t mpaths; 768 /* Timestamp of last SN update */ 769 unsigned long last_sn_update; 770 /* Time when it's ok to send next PERR */ 771 unsigned long next_perr; 772 /* Timestamp of last PREQ sent */ 773 unsigned long last_preq; 774 struct mesh_rmc *rmc; 775 spinlock_t mesh_preq_queue_lock; 776 struct mesh_preq_queue preq_queue; 777 int preq_queue_len; 778 struct mesh_stats mshstats; 779 struct mesh_config mshcfg; 780 atomic_t estab_plinks; 781 atomic_t mesh_seqnum; 782 bool accepting_plinks; 783 int num_gates; 784 struct beacon_data __rcu *beacon; 785 const u8 *ie; 786 u8 ie_len; 787 enum { 788 IEEE80211_MESH_SEC_NONE = 0x0, 789 IEEE80211_MESH_SEC_AUTHED = 0x1, 790 IEEE80211_MESH_SEC_SECURED = 0x2, 791 } security; 792 bool user_mpm; 793 /* Extensible Synchronization Framework */ 794 const struct ieee80211_mesh_sync_ops *sync_ops; 795 s64 sync_offset_clockdrift_max; 796 spinlock_t sync_offset_lock; 797 /* mesh power save */ 798 enum nl80211_mesh_power_mode nonpeer_pm; 799 int ps_peers_light_sleep; 800 int ps_peers_deep_sleep; 801 struct ps_data ps; 802 /* Channel Switching Support */ 803 struct mesh_csa_settings __rcu *csa; 804 enum { 805 IEEE80211_MESH_CSA_ROLE_NONE, 806 IEEE80211_MESH_CSA_ROLE_INIT, 807 IEEE80211_MESH_CSA_ROLE_REPEATER, 808 } csa_role; 809 u8 chsw_ttl; 810 u16 pre_value; 811 812 /* offset from skb->data while building IE */ 813 int meshconf_offset; 814 815 struct mesh_table mesh_paths; 816 struct mesh_table mpp_paths; /* Store paths for MPP&MAP */ 817 int mesh_paths_generation; 818 int mpp_paths_generation; 819 struct mesh_tx_cache tx_cache; 820 }; 821 822 #ifdef CONFIG_MAC80211_MESH 823 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ 824 do { (msh)->mshstats.name++; } while (0) 825 #else 826 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ 827 do { } while (0) 828 #endif 829 830 /** 831 * enum ieee80211_sub_if_data_flags - virtual interface flags 832 * 833 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets 834 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between 835 * associated stations and deliver multicast frames both 836 * back to wireless media and to the local net stack. 837 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume. 838 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver 839 * @IEEE80211_SDATA_DISCONNECT_HW_RESTART: Disconnect after hardware restart 840 * recovery 841 */ 842 enum ieee80211_sub_if_data_flags { 843 IEEE80211_SDATA_ALLMULTI = BIT(0), 844 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3), 845 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4), 846 IEEE80211_SDATA_IN_DRIVER = BIT(5), 847 IEEE80211_SDATA_DISCONNECT_HW_RESTART = BIT(6), 848 }; 849 850 /** 851 * enum ieee80211_sdata_state_bits - virtual interface state bits 852 * @SDATA_STATE_RUNNING: virtual interface is up & running; this 853 * mirrors netif_running() but is separate for interface type 854 * change handling while the interface is up 855 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel 856 * mode, so queues are stopped 857 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due 858 * to offchannel, reset when offchannel returns 859 */ 860 enum ieee80211_sdata_state_bits { 861 SDATA_STATE_RUNNING, 862 SDATA_STATE_OFFCHANNEL, 863 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, 864 }; 865 866 /** 867 * enum ieee80211_chanctx_mode - channel context configuration mode 868 * 869 * @IEEE80211_CHANCTX_SHARED: channel context may be used by 870 * multiple interfaces 871 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used 872 * only by a single interface. This can be used for example for 873 * non-fixed channel IBSS. 874 */ 875 enum ieee80211_chanctx_mode { 876 IEEE80211_CHANCTX_SHARED, 877 IEEE80211_CHANCTX_EXCLUSIVE 878 }; 879 880 /** 881 * enum ieee80211_chanctx_replace_state - channel context replacement state 882 * 883 * This is used for channel context in-place reservations that require channel 884 * context switch/swap. 885 * 886 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place 887 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced 888 * by a (not yet registered) channel context pointed by %replace_ctx. 889 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context 890 * replaces an existing channel context pointed to by %replace_ctx. 891 */ 892 enum ieee80211_chanctx_replace_state { 893 IEEE80211_CHANCTX_REPLACE_NONE, 894 IEEE80211_CHANCTX_WILL_BE_REPLACED, 895 IEEE80211_CHANCTX_REPLACES_OTHER, 896 }; 897 898 struct ieee80211_chanctx { 899 struct list_head list; 900 struct rcu_head rcu_head; 901 902 struct list_head assigned_links; 903 struct list_head reserved_links; 904 905 enum ieee80211_chanctx_replace_state replace_state; 906 struct ieee80211_chanctx *replace_ctx; 907 908 enum ieee80211_chanctx_mode mode; 909 bool driver_present; 910 911 /* temporary data for search algorithm etc. */ 912 struct ieee80211_chan_req req; 913 914 bool radar_detected; 915 916 /* MUST be last - ends in a flexible-array member. */ 917 struct ieee80211_chanctx_conf conf; 918 }; 919 920 struct mac80211_qos_map { 921 struct cfg80211_qos_map qos_map; 922 struct rcu_head rcu_head; 923 }; 924 925 enum txq_info_flags { 926 IEEE80211_TXQ_STOP, 927 IEEE80211_TXQ_AMPDU, 928 IEEE80211_TXQ_NO_AMSDU, 929 IEEE80211_TXQ_DIRTY, 930 }; 931 932 /** 933 * struct txq_info - per tid queue 934 * 935 * @tin: contains packets split into multiple flows 936 * @def_cvars: codel vars for the @tin's default_flow 937 * @cstats: code statistics for this queue 938 * @frags: used to keep fragments created after dequeue 939 * @schedule_order: used with ieee80211_local->active_txqs 940 * @schedule_round: counter to prevent infinite loops on TXQ scheduling 941 * @flags: TXQ flags from &enum txq_info_flags 942 * @txq: the driver visible part 943 */ 944 struct txq_info { 945 struct fq_tin tin; 946 struct codel_vars def_cvars; 947 struct codel_stats cstats; 948 949 u16 schedule_round; 950 struct list_head schedule_order; 951 952 struct sk_buff_head frags; 953 954 unsigned long flags; 955 956 /* keep last! */ 957 struct ieee80211_txq txq; 958 }; 959 960 struct ieee80211_if_mntr { 961 u32 flags; 962 u8 mu_follow_addr[ETH_ALEN] __aligned(2); 963 964 struct list_head list; 965 }; 966 967 /** 968 * struct ieee80211_if_nan - NAN state 969 * 970 * @conf: current NAN configuration 971 * @func_lock: lock for @func_inst_ids 972 * @function_inst_ids: a bitmap of available instance_id's 973 */ 974 struct ieee80211_if_nan { 975 struct cfg80211_nan_conf conf; 976 977 /* protects function_inst_ids */ 978 spinlock_t func_lock; 979 struct idr function_inst_ids; 980 }; 981 982 struct ieee80211_link_data_managed { 983 u8 bssid[ETH_ALEN] __aligned(2); 984 985 u8 dtim_period; 986 enum ieee80211_smps_mode req_smps, /* requested smps mode */ 987 driver_smps_mode; /* smps mode request */ 988 989 struct ieee80211_conn_settings conn; 990 991 s16 p2p_noa_index; 992 993 bool tdls_chan_switch_prohibited; 994 995 bool have_beacon; 996 bool tracking_signal_avg; 997 bool disable_wmm_tracking; 998 bool operating_11g_mode; 999 1000 struct { 1001 struct wiphy_delayed_work switch_work; 1002 struct cfg80211_chan_def ap_chandef; 1003 struct ieee80211_parsed_tpe tpe; 1004 unsigned long time; 1005 bool waiting_bcn; 1006 bool ignored_same_chan; 1007 bool blocked_tx; 1008 } csa; 1009 1010 struct wiphy_work request_smps_work; 1011 /* used to reconfigure hardware SM PS */ 1012 struct wiphy_work recalc_smps; 1013 1014 bool beacon_crc_valid; 1015 u32 beacon_crc; 1016 struct ewma_beacon_signal ave_beacon_signal; 1017 int last_ave_beacon_signal; 1018 1019 /* 1020 * Number of Beacon frames used in ave_beacon_signal. This can be used 1021 * to avoid generating less reliable cqm events that would be based 1022 * only on couple of received frames. 1023 */ 1024 unsigned int count_beacon_signal; 1025 1026 /* Number of times beacon loss was invoked. */ 1027 unsigned int beacon_loss_count; 1028 1029 /* 1030 * Last Beacon frame signal strength average (ave_beacon_signal / 16) 1031 * that triggered a cqm event. 0 indicates that no event has been 1032 * generated for the current association. 1033 */ 1034 int last_cqm_event_signal; 1035 1036 int wmm_last_param_set; 1037 int mu_edca_last_param_set; 1038 }; 1039 1040 struct ieee80211_link_data_ap { 1041 struct beacon_data __rcu *beacon; 1042 struct probe_resp __rcu *probe_resp; 1043 struct fils_discovery_data __rcu *fils_discovery; 1044 struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp; 1045 1046 /* to be used after channel switch. */ 1047 struct cfg80211_beacon_data *next_beacon; 1048 }; 1049 1050 struct ieee80211_link_data { 1051 struct ieee80211_sub_if_data *sdata; 1052 unsigned int link_id; 1053 1054 struct list_head assigned_chanctx_list; /* protected by wiphy mutex */ 1055 struct list_head reserved_chanctx_list; /* protected by wiphy mutex */ 1056 1057 /* multicast keys only */ 1058 struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS + 1059 NUM_DEFAULT_MGMT_KEYS + 1060 NUM_DEFAULT_BEACON_KEYS]; 1061 struct ieee80211_key __rcu *default_multicast_key; 1062 struct ieee80211_key __rcu *default_mgmt_key; 1063 struct ieee80211_key __rcu *default_beacon_key; 1064 1065 1066 bool operating_11g_mode; 1067 1068 struct { 1069 struct wiphy_work finalize_work; 1070 struct ieee80211_chan_req chanreq; 1071 } csa; 1072 1073 struct wiphy_work color_change_finalize_work; 1074 struct wiphy_delayed_work color_collision_detect_work; 1075 u64 color_bitmap; 1076 1077 /* context reservation -- protected with wiphy mutex */ 1078 struct ieee80211_chanctx *reserved_chanctx; 1079 struct ieee80211_chan_req reserved; 1080 bool reserved_radar_required; 1081 bool reserved_ready; 1082 1083 u8 needed_rx_chains; 1084 enum ieee80211_smps_mode smps_mode; 1085 1086 int user_power_level; /* in dBm */ 1087 int ap_power_level; /* in dBm */ 1088 1089 bool radar_required; 1090 struct wiphy_delayed_work dfs_cac_timer_work; 1091 1092 union { 1093 struct ieee80211_link_data_managed mgd; 1094 struct ieee80211_link_data_ap ap; 1095 } u; 1096 1097 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS]; 1098 1099 struct ieee80211_bss_conf *conf; 1100 1101 #ifdef CONFIG_MAC80211_DEBUGFS 1102 struct dentry *debugfs_dir; 1103 #endif 1104 }; 1105 1106 struct ieee80211_sub_if_data { 1107 struct list_head list; 1108 1109 struct wireless_dev wdev; 1110 1111 /* keys */ 1112 struct list_head key_list; 1113 1114 /* count for keys needing tailroom space allocation */ 1115 int crypto_tx_tailroom_needed_cnt; 1116 int crypto_tx_tailroom_pending_dec; 1117 struct wiphy_delayed_work dec_tailroom_needed_wk; 1118 1119 struct net_device *dev; 1120 struct ieee80211_local *local; 1121 1122 unsigned int flags; 1123 1124 unsigned long state; 1125 1126 char name[IFNAMSIZ]; 1127 1128 struct ieee80211_fragment_cache frags; 1129 1130 /* TID bitmap for NoAck policy */ 1131 u16 noack_map; 1132 1133 /* bit field of ACM bits (BIT(802.1D tag)) */ 1134 u8 wmm_acm; 1135 1136 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS]; 1137 struct ieee80211_key __rcu *default_unicast_key; 1138 1139 u16 sequence_number; 1140 u16 mld_mcast_seq; 1141 __be16 control_port_protocol; 1142 bool control_port_no_encrypt; 1143 bool control_port_no_preauth; 1144 bool control_port_over_nl80211; 1145 1146 atomic_t num_tx_queued; 1147 struct mac80211_qos_map __rcu *qos_map; 1148 1149 struct wiphy_work work; 1150 struct sk_buff_head skb_queue; 1151 struct sk_buff_head status_queue; 1152 1153 /* 1154 * AP this belongs to: self in AP mode and 1155 * corresponding AP in VLAN mode, NULL for 1156 * all others (might be needed later in IBSS) 1157 */ 1158 struct ieee80211_if_ap *bss; 1159 1160 /* bitmap of allowed (non-MCS) rate indexes for rate control */ 1161 u32 rc_rateidx_mask[NUM_NL80211_BANDS]; 1162 1163 bool rc_has_mcs_mask[NUM_NL80211_BANDS]; 1164 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN]; 1165 1166 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS]; 1167 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX]; 1168 1169 /* Beacon frame (non-MCS) rate (as a bitmap) */ 1170 u32 beacon_rateidx_mask[NUM_NL80211_BANDS]; 1171 bool beacon_rate_set; 1172 1173 union { 1174 struct ieee80211_if_ap ap; 1175 struct ieee80211_if_vlan vlan; 1176 struct ieee80211_if_managed mgd; 1177 struct ieee80211_if_ibss ibss; 1178 struct ieee80211_if_mesh mesh; 1179 struct ieee80211_if_ocb ocb; 1180 struct ieee80211_if_mntr mntr; 1181 struct ieee80211_if_nan nan; 1182 } u; 1183 1184 struct ieee80211_link_data deflink; 1185 struct ieee80211_link_data __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS]; 1186 1187 /* for ieee80211_set_active_links_async() */ 1188 struct wiphy_work activate_links_work; 1189 u16 desired_active_links; 1190 1191 u16 restart_active_links; 1192 1193 #ifdef CONFIG_MAC80211_DEBUGFS 1194 struct { 1195 struct dentry *subdir_stations; 1196 struct dentry *default_unicast_key; 1197 struct dentry *default_multicast_key; 1198 struct dentry *default_mgmt_key; 1199 struct dentry *default_beacon_key; 1200 } debugfs; 1201 #endif 1202 1203 /* must be last, dynamically sized area in this! */ 1204 struct ieee80211_vif vif; 1205 }; 1206 1207 static inline vif_to_sdata(struct ieee80211_vif * p)1208 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p) 1209 { 1210 return container_of(p, struct ieee80211_sub_if_data, vif); 1211 } 1212 1213 #define sdata_dereference(p, sdata) \ 1214 wiphy_dereference(sdata->local->hw.wiphy, p) 1215 1216 #define for_each_sdata_link(_local, _link) \ 1217 /* outer loop just to define the variables ... */ \ 1218 for (struct ieee80211_sub_if_data *___sdata = NULL; \ 1219 !___sdata; \ 1220 ___sdata = (void *)~0 /* always stop */) \ 1221 list_for_each_entry(___sdata, &(_local)->interfaces, list) \ 1222 if (ieee80211_sdata_running(___sdata)) \ 1223 for (int ___link_id = 0; \ 1224 ___link_id < ARRAY_SIZE(___sdata->link); \ 1225 ___link_id++) \ 1226 if ((_link = wiphy_dereference((_local)->hw.wiphy, \ 1227 ___sdata->link[___link_id]))) 1228 1229 static inline int ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems * elems,struct cfg80211_rnr_elems * rnr_elems,u8 i)1230 ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems *elems, 1231 struct cfg80211_rnr_elems *rnr_elems, 1232 u8 i) 1233 { 1234 int len = 0; 1235 1236 if (!elems || !elems->cnt || i > elems->cnt) 1237 return 0; 1238 1239 if (i < elems->cnt) { 1240 len = elems->elem[i].len; 1241 if (rnr_elems) { 1242 len += rnr_elems->elem[i].len; 1243 for (i = elems->cnt; i < rnr_elems->cnt; i++) 1244 len += rnr_elems->elem[i].len; 1245 } 1246 return len; 1247 } 1248 1249 /* i == elems->cnt, calculate total length of all MBSSID elements */ 1250 for (i = 0; i < elems->cnt; i++) 1251 len += elems->elem[i].len; 1252 1253 if (rnr_elems) { 1254 for (i = 0; i < rnr_elems->cnt; i++) 1255 len += rnr_elems->elem[i].len; 1256 } 1257 1258 return len; 1259 } 1260 1261 enum { 1262 IEEE80211_RX_MSG = 1, 1263 IEEE80211_TX_STATUS_MSG = 2, 1264 }; 1265 1266 enum queue_stop_reason { 1267 IEEE80211_QUEUE_STOP_REASON_DRIVER, 1268 IEEE80211_QUEUE_STOP_REASON_PS, 1269 IEEE80211_QUEUE_STOP_REASON_CSA, 1270 IEEE80211_QUEUE_STOP_REASON_AGGREGATION, 1271 IEEE80211_QUEUE_STOP_REASON_SUSPEND, 1272 IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 1273 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL, 1274 IEEE80211_QUEUE_STOP_REASON_FLUSH, 1275 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN, 1276 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID, 1277 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE, 1278 1279 IEEE80211_QUEUE_STOP_REASONS, 1280 }; 1281 1282 #ifdef CONFIG_MAC80211_LEDS 1283 struct tpt_led_trigger { 1284 char name[32]; 1285 const struct ieee80211_tpt_blink *blink_table; 1286 unsigned int blink_table_len; 1287 struct timer_list timer; 1288 struct ieee80211_local *local; 1289 unsigned long prev_traffic; 1290 unsigned long tx_bytes, rx_bytes; 1291 unsigned int active, want; 1292 bool running; 1293 }; 1294 #endif 1295 1296 /** 1297 * enum mac80211_scan_flags - currently active scan mode 1298 * 1299 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as 1300 * well be on the operating channel 1301 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to 1302 * determine if we are on the operating channel or not 1303 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating 1304 * channel. This should not interrupt normal traffic. 1305 * @SCAN_COMPLETED: Set for our scan work function when the driver reported 1306 * that the scan completed. 1307 * @SCAN_ABORTED: Set for our scan work function when the driver reported 1308 * a scan complete for an aborted scan. 1309 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being 1310 * cancelled. 1311 * @SCAN_BEACON_WAIT: Set whenever we're passive scanning because of radar/no-IR 1312 * and could send a probe request after receiving a beacon. 1313 * @SCAN_BEACON_DONE: Beacon received, we can now send a probe request 1314 */ 1315 enum mac80211_scan_flags { 1316 SCAN_SW_SCANNING, 1317 SCAN_HW_SCANNING, 1318 SCAN_ONCHANNEL_SCANNING, 1319 SCAN_COMPLETED, 1320 SCAN_ABORTED, 1321 SCAN_HW_CANCELLED, 1322 SCAN_BEACON_WAIT, 1323 SCAN_BEACON_DONE, 1324 }; 1325 1326 /** 1327 * enum mac80211_scan_state - scan state machine states 1328 * 1329 * @SCAN_DECISION: Main entry point to the scan state machine, this state 1330 * determines if we should keep on scanning or switch back to the 1331 * operating channel 1332 * @SCAN_SET_CHANNEL: Set the next channel to be scanned 1333 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses 1334 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to 1335 * send out data 1336 * @SCAN_RESUME: Resume the scan and scan the next channel 1337 * @SCAN_ABORT: Abort the scan and go back to operating channel 1338 */ 1339 enum mac80211_scan_state { 1340 SCAN_DECISION, 1341 SCAN_SET_CHANNEL, 1342 SCAN_SEND_PROBE, 1343 SCAN_SUSPEND, 1344 SCAN_RESUME, 1345 SCAN_ABORT, 1346 }; 1347 1348 DECLARE_STATIC_KEY_FALSE(aql_disable); 1349 1350 struct ieee80211_local { 1351 /* embed the driver visible part. 1352 * don't cast (use the static inlines below), but we keep 1353 * it first anyway so they become a no-op */ 1354 struct ieee80211_hw hw; 1355 1356 struct fq fq; 1357 struct codel_vars *cvars; 1358 struct codel_params cparams; 1359 1360 /* protects active_txqs and txqi->schedule_order */ 1361 spinlock_t active_txq_lock[IEEE80211_NUM_ACS]; 1362 struct list_head active_txqs[IEEE80211_NUM_ACS]; 1363 u16 schedule_round[IEEE80211_NUM_ACS]; 1364 1365 /* serializes ieee80211_handle_wake_tx_queue */ 1366 spinlock_t handle_wake_tx_queue_lock; 1367 1368 u16 airtime_flags; 1369 u32 aql_txq_limit_low[IEEE80211_NUM_ACS]; 1370 u32 aql_txq_limit_high[IEEE80211_NUM_ACS]; 1371 u32 aql_threshold; 1372 atomic_t aql_total_pending_airtime; 1373 atomic_t aql_ac_pending_airtime[IEEE80211_NUM_ACS]; 1374 1375 const struct ieee80211_ops *ops; 1376 1377 /* 1378 * private workqueue to mac80211. mac80211 makes this accessible 1379 * via ieee80211_queue_work() 1380 */ 1381 struct workqueue_struct *workqueue; 1382 1383 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES]; 1384 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS]; 1385 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */ 1386 spinlock_t queue_stop_reason_lock; 1387 1388 int open_count; 1389 int monitors, virt_monitors, tx_mntrs; 1390 /* number of interfaces with corresponding FIF_ flags */ 1391 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll, 1392 fif_probe_req; 1393 bool probe_req_reg; 1394 bool rx_mcast_action_reg; 1395 unsigned int filter_flags; /* FIF_* */ 1396 1397 bool wiphy_ciphers_allocated; 1398 1399 struct cfg80211_chan_def dflt_chandef; 1400 bool emulate_chanctx; 1401 1402 /* protects the aggregated multicast list and filter calls */ 1403 spinlock_t filter_lock; 1404 1405 /* used for uploading changed mc list */ 1406 struct wiphy_work reconfig_filter; 1407 1408 /* aggregated multicast list */ 1409 struct netdev_hw_addr_list mc_list; 1410 1411 bool tim_in_locked_section; /* see ieee80211_beacon_get() */ 1412 1413 /* 1414 * suspended is true if we finished all the suspend _and_ we have 1415 * not yet come up from resume. This is to be used by mac80211 1416 * to ensure driver sanity during suspend and mac80211's own 1417 * sanity. It can eventually be used for WoW as well. 1418 */ 1419 bool suspended; 1420 1421 /* suspending is true during the whole suspend process */ 1422 bool suspending; 1423 1424 /* 1425 * Resuming is true while suspended, but when we're reprogramming the 1426 * hardware -- at that time it's allowed to use ieee80211_queue_work() 1427 * again even though some other parts of the stack are still suspended 1428 * and we still drop received frames to avoid waking the stack. 1429 */ 1430 bool resuming; 1431 1432 /* 1433 * quiescing is true during the suspend process _only_ to 1434 * ease timer cancelling etc. 1435 */ 1436 bool quiescing; 1437 1438 /* device is started */ 1439 bool started; 1440 1441 /* device is during a HW reconfig */ 1442 bool in_reconfig; 1443 1444 /* reconfiguration failed ... suppress some warnings etc. */ 1445 bool reconfig_failure; 1446 1447 /* wowlan is enabled -- don't reconfig on resume */ 1448 bool wowlan; 1449 1450 struct wiphy_work radar_detected_work; 1451 1452 /* number of RX chains the hardware has */ 1453 u8 rx_chains; 1454 1455 /* bitmap of which sbands were copied */ 1456 u8 sband_allocated; 1457 1458 int tx_headroom; /* required headroom for hardware/radiotap */ 1459 1460 /* Tasklet and skb queue to process calls from IRQ mode. All frames 1461 * added to skb_queue will be processed, but frames in 1462 * skb_queue_unreliable may be dropped if the total length of these 1463 * queues increases over the limit. */ 1464 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128 1465 struct tasklet_struct tasklet; 1466 struct sk_buff_head skb_queue; 1467 struct sk_buff_head skb_queue_unreliable; 1468 1469 spinlock_t rx_path_lock; 1470 1471 /* Station data */ 1472 /* 1473 * The list, hash table and counter are protected 1474 * by the wiphy mutex, reads are done with RCU. 1475 */ 1476 spinlock_t tim_lock; 1477 unsigned long num_sta; 1478 struct list_head sta_list; 1479 struct rhltable sta_hash; 1480 struct rhltable link_sta_hash; 1481 struct timer_list sta_cleanup; 1482 int sta_generation; 1483 1484 struct sk_buff_head pending[IEEE80211_MAX_QUEUES]; 1485 struct tasklet_struct tx_pending_tasklet; 1486 struct tasklet_struct wake_txqs_tasklet; 1487 1488 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES]; 1489 1490 /* number of interfaces with allmulti RX */ 1491 atomic_t iff_allmultis; 1492 1493 struct rate_control_ref *rate_ctrl; 1494 1495 struct arc4_ctx wep_tx_ctx; 1496 struct arc4_ctx wep_rx_ctx; 1497 u32 wep_iv; 1498 1499 /* see iface.c */ 1500 struct list_head interfaces; 1501 struct list_head mon_list; /* only that are IFF_UP */ 1502 struct mutex iflist_mtx; 1503 1504 /* Scanning and BSS list */ 1505 unsigned long scanning; 1506 struct cfg80211_ssid scan_ssid; 1507 struct cfg80211_scan_request *int_scan_req; 1508 struct cfg80211_scan_request __rcu *scan_req; 1509 struct ieee80211_scan_request *hw_scan_req; 1510 struct cfg80211_chan_def scan_chandef; 1511 enum nl80211_band hw_scan_band; 1512 int scan_channel_idx; 1513 int scan_ies_len; 1514 int hw_scan_ies_bufsize; 1515 struct cfg80211_scan_info scan_info; 1516 1517 struct wiphy_work sched_scan_stopped_work; 1518 struct ieee80211_sub_if_data __rcu *sched_scan_sdata; 1519 struct cfg80211_sched_scan_request __rcu *sched_scan_req; 1520 u8 scan_addr[ETH_ALEN]; 1521 1522 unsigned long leave_oper_channel_time; 1523 enum mac80211_scan_state next_scan_state; 1524 struct wiphy_delayed_work scan_work; 1525 struct ieee80211_sub_if_data __rcu *scan_sdata; 1526 1527 /* Temporary remain-on-channel for off-channel operations */ 1528 struct ieee80211_channel *tmp_channel; 1529 1530 /* channel contexts */ 1531 struct list_head chanctx_list; 1532 1533 #ifdef CONFIG_MAC80211_LEDS 1534 struct led_trigger tx_led, rx_led, assoc_led, radio_led; 1535 struct led_trigger tpt_led; 1536 atomic_t tx_led_active, rx_led_active, assoc_led_active; 1537 atomic_t radio_led_active, tpt_led_active; 1538 struct tpt_led_trigger *tpt_led_trigger; 1539 #endif 1540 1541 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS 1542 /* SNMP counters */ 1543 /* dot11CountersTable */ 1544 u32 dot11TransmittedFragmentCount; 1545 u32 dot11MulticastTransmittedFrameCount; 1546 u32 dot11FailedCount; 1547 u32 dot11RetryCount; 1548 u32 dot11MultipleRetryCount; 1549 u32 dot11FrameDuplicateCount; 1550 u32 dot11ReceivedFragmentCount; 1551 u32 dot11MulticastReceivedFrameCount; 1552 u32 dot11TransmittedFrameCount; 1553 1554 /* TX/RX handler statistics */ 1555 unsigned int tx_handlers_drop; 1556 unsigned int tx_handlers_queued; 1557 unsigned int tx_handlers_drop_wep; 1558 unsigned int tx_handlers_drop_not_assoc; 1559 unsigned int tx_handlers_drop_unauth_port; 1560 unsigned int rx_handlers_drop; 1561 unsigned int rx_handlers_queued; 1562 unsigned int rx_handlers_drop_nullfunc; 1563 unsigned int rx_handlers_drop_defrag; 1564 unsigned int tx_expand_skb_head; 1565 unsigned int tx_expand_skb_head_cloned; 1566 unsigned int rx_expand_skb_head_defrag; 1567 unsigned int rx_handlers_fragments; 1568 unsigned int tx_status_drop; 1569 #define I802_DEBUG_INC(c) (c)++ 1570 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */ 1571 #define I802_DEBUG_INC(c) do { } while (0) 1572 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */ 1573 1574 1575 int total_ps_buffered; /* total number of all buffered unicast and 1576 * multicast packets for power saving stations 1577 */ 1578 1579 bool pspolling; 1580 /* 1581 * PS can only be enabled when we have exactly one managed 1582 * interface (and monitors) in PS, this then points there. 1583 */ 1584 struct ieee80211_sub_if_data *ps_sdata; 1585 struct wiphy_work dynamic_ps_enable_work; 1586 struct wiphy_work dynamic_ps_disable_work; 1587 struct timer_list dynamic_ps_timer; 1588 struct notifier_block ifa_notifier; 1589 struct notifier_block ifa6_notifier; 1590 1591 /* 1592 * The dynamic ps timeout configured from user space via WEXT - 1593 * this will override whatever chosen by mac80211 internally. 1594 */ 1595 int dynamic_ps_forced_timeout; 1596 1597 int user_power_level; /* in dBm, for all interfaces */ 1598 1599 struct work_struct restart_work; 1600 1601 #ifdef CONFIG_MAC80211_DEBUGFS 1602 struct local_debugfsdentries { 1603 struct dentry *rcdir; 1604 struct dentry *keys; 1605 } debugfs; 1606 bool force_tx_status; 1607 #endif 1608 1609 /* 1610 * Remain-on-channel support 1611 */ 1612 struct wiphy_delayed_work roc_work; 1613 struct list_head roc_list; 1614 struct wiphy_work hw_roc_start, hw_roc_done; 1615 unsigned long hw_roc_start_time; 1616 u64 roc_cookie_counter; 1617 1618 struct idr ack_status_frames; 1619 spinlock_t ack_status_lock; 1620 1621 struct ieee80211_sub_if_data __rcu *p2p_sdata; 1622 1623 /* virtual monitor interface */ 1624 struct ieee80211_sub_if_data __rcu *monitor_sdata; 1625 struct ieee80211_chan_req monitor_chanreq; 1626 1627 /* extended capabilities provided by mac80211 */ 1628 u8 ext_capa[8]; 1629 1630 bool wbrf_supported; 1631 }; 1632 1633 static inline struct ieee80211_sub_if_data * IEEE80211_DEV_TO_SUB_IF(const struct net_device * dev)1634 IEEE80211_DEV_TO_SUB_IF(const struct net_device *dev) 1635 { 1636 return netdev_priv(dev); 1637 } 1638 1639 static inline struct ieee80211_sub_if_data * IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev * wdev)1640 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev) 1641 { 1642 return container_of(wdev, struct ieee80211_sub_if_data, wdev); 1643 } 1644 1645 static inline struct ieee80211_supported_band * ieee80211_get_sband(struct ieee80211_sub_if_data * sdata)1646 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata) 1647 { 1648 struct ieee80211_local *local = sdata->local; 1649 struct ieee80211_chanctx_conf *chanctx_conf; 1650 enum nl80211_band band; 1651 1652 WARN_ON(ieee80211_vif_is_mld(&sdata->vif)); 1653 1654 rcu_read_lock(); 1655 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 1656 1657 if (!chanctx_conf) { 1658 rcu_read_unlock(); 1659 return NULL; 1660 } 1661 1662 band = chanctx_conf->def.chan->band; 1663 rcu_read_unlock(); 1664 1665 return local->hw.wiphy->bands[band]; 1666 } 1667 1668 static inline struct ieee80211_supported_band * ieee80211_get_link_sband(struct ieee80211_link_data * link)1669 ieee80211_get_link_sband(struct ieee80211_link_data *link) 1670 { 1671 struct ieee80211_local *local = link->sdata->local; 1672 struct ieee80211_chanctx_conf *chanctx_conf; 1673 enum nl80211_band band; 1674 1675 rcu_read_lock(); 1676 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 1677 if (!chanctx_conf) { 1678 rcu_read_unlock(); 1679 return NULL; 1680 } 1681 1682 band = chanctx_conf->def.chan->band; 1683 rcu_read_unlock(); 1684 1685 return local->hw.wiphy->bands[band]; 1686 } 1687 1688 /* this struct holds the value parsing from channel switch IE */ 1689 struct ieee80211_csa_ie { 1690 struct ieee80211_chan_req chanreq; 1691 u8 mode; 1692 u8 count; 1693 u8 ttl; 1694 u16 pre_value; 1695 u16 reason_code; 1696 u32 max_switch_time; 1697 }; 1698 1699 enum ieee80211_elems_parse_error { 1700 IEEE80211_PARSE_ERR_INVALID_END = BIT(0), 1701 IEEE80211_PARSE_ERR_DUP_ELEM = BIT(1), 1702 IEEE80211_PARSE_ERR_BAD_ELEM_SIZE = BIT(2), 1703 IEEE80211_PARSE_ERR_UNEXPECTED_ELEM = BIT(3), 1704 IEEE80211_PARSE_ERR_DUP_NEST_ML_BASIC = BIT(4), 1705 }; 1706 1707 /* Parsed Information Elements */ 1708 struct ieee802_11_elems { 1709 const u8 *ie_start; 1710 size_t total_len; 1711 u32 crc; 1712 1713 /* pointers to IEs */ 1714 const struct ieee80211_tdls_lnkie *lnk_id; 1715 const struct ieee80211_ch_switch_timing *ch_sw_timing; 1716 const u8 *ext_capab; 1717 const u8 *ssid; 1718 const u8 *supp_rates; 1719 const u8 *ds_params; 1720 const struct ieee80211_tim_ie *tim; 1721 const u8 *rsn; 1722 const u8 *rsnx; 1723 const u8 *erp_info; 1724 const u8 *ext_supp_rates; 1725 const u8 *wmm_info; 1726 const u8 *wmm_param; 1727 const struct ieee80211_ht_cap *ht_cap_elem; 1728 const struct ieee80211_ht_operation *ht_operation; 1729 const struct ieee80211_vht_cap *vht_cap_elem; 1730 const struct ieee80211_vht_operation *vht_operation; 1731 const struct ieee80211_meshconf_ie *mesh_config; 1732 const u8 *he_cap; 1733 const struct ieee80211_he_operation *he_operation; 1734 const struct ieee80211_he_spr *he_spr; 1735 const struct ieee80211_mu_edca_param_set *mu_edca_param_set; 1736 const struct ieee80211_he_6ghz_capa *he_6ghz_capa; 1737 const u8 *uora_element; 1738 const u8 *mesh_id; 1739 const u8 *peering; 1740 const __le16 *awake_window; 1741 const u8 *preq; 1742 const u8 *prep; 1743 const u8 *perr; 1744 const struct ieee80211_rann_ie *rann; 1745 const struct ieee80211_channel_sw_ie *ch_switch_ie; 1746 const struct ieee80211_ext_chansw_ie *ext_chansw_ie; 1747 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie; 1748 const u8 *max_channel_switch_time; 1749 const u8 *country_elem; 1750 const u8 *pwr_constr_elem; 1751 const u8 *cisco_dtpc_elem; 1752 const struct ieee80211_timeout_interval_ie *timeout_int; 1753 const u8 *opmode_notif; 1754 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs; 1755 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie; 1756 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie; 1757 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie; 1758 const struct ieee80211_bssid_index *bssid_index; 1759 u8 max_bssid_indicator; 1760 u8 dtim_count; 1761 u8 dtim_period; 1762 const struct ieee80211_addba_ext_ie *addba_ext_ie; 1763 const struct ieee80211_s1g_cap *s1g_capab; 1764 const struct ieee80211_s1g_oper_ie *s1g_oper; 1765 const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat; 1766 const struct ieee80211_aid_response_ie *aid_resp; 1767 const struct ieee80211_eht_cap_elem *eht_cap; 1768 const struct ieee80211_eht_operation *eht_operation; 1769 const struct ieee80211_multi_link_elem *ml_basic; 1770 const struct ieee80211_multi_link_elem *ml_reconf; 1771 const struct ieee80211_multi_link_elem *ml_epcs; 1772 const struct ieee80211_bandwidth_indication *bandwidth_indication; 1773 const struct ieee80211_ttlm_elem *ttlm[IEEE80211_TTLM_MAX_CNT]; 1774 1775 /* not the order in the psd values is per element, not per chandef */ 1776 struct ieee80211_parsed_tpe tpe; 1777 struct ieee80211_parsed_tpe csa_tpe; 1778 1779 /* length of them, respectively */ 1780 u8 ext_capab_len; 1781 u8 ssid_len; 1782 u8 supp_rates_len; 1783 u8 tim_len; 1784 u8 rsn_len; 1785 u8 rsnx_len; 1786 u8 ext_supp_rates_len; 1787 u8 wmm_info_len; 1788 u8 wmm_param_len; 1789 u8 he_cap_len; 1790 u8 mesh_id_len; 1791 u8 peering_len; 1792 u8 preq_len; 1793 u8 prep_len; 1794 u8 perr_len; 1795 u8 country_elem_len; 1796 u8 bssid_index_len; 1797 u8 eht_cap_len; 1798 1799 /* mult-link element can be de-fragmented and thus u8 is not sufficient */ 1800 size_t ml_basic_len; 1801 size_t ml_reconf_len; 1802 size_t ml_epcs_len; 1803 1804 u8 ttlm_num; 1805 1806 /* 1807 * store the per station profile pointer and length in case that the 1808 * parsing also handled Multi-Link element parsing for a specific link 1809 * ID. 1810 */ 1811 struct ieee80211_mle_per_sta_profile *prof; 1812 size_t sta_prof_len; 1813 1814 /* whether/which parse error occurred while retrieving these elements */ 1815 u8 parse_error; 1816 }; 1817 hw_to_local(struct ieee80211_hw * hw)1818 static inline struct ieee80211_local *hw_to_local( 1819 struct ieee80211_hw *hw) 1820 { 1821 return container_of(hw, struct ieee80211_local, hw); 1822 } 1823 to_txq_info(struct ieee80211_txq * txq)1824 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq) 1825 { 1826 return container_of(txq, struct txq_info, txq); 1827 } 1828 txq_has_queue(struct ieee80211_txq * txq)1829 static inline bool txq_has_queue(struct ieee80211_txq *txq) 1830 { 1831 struct txq_info *txqi = to_txq_info(txq); 1832 1833 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets); 1834 } 1835 1836 static inline bool ieee80211_have_rx_timestamp(struct ieee80211_rx_status * status)1837 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status) 1838 { 1839 return status->flag & RX_FLAG_MACTIME; 1840 } 1841 1842 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata); 1843 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata); 1844 1845 void ieee80211_vif_block_queues_csa(struct ieee80211_sub_if_data *sdata); 1846 void ieee80211_vif_unblock_queues_csa(struct ieee80211_sub_if_data *sdata); 1847 1848 /* This function returns the number of multicast stations connected to this 1849 * interface. It returns -1 if that number is not tracked, that is for netdevs 1850 * not in AP or AP_VLAN mode or when using 4addr. 1851 */ 1852 static inline int ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data * sdata)1853 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata) 1854 { 1855 if (sdata->vif.type == NL80211_IFTYPE_AP) 1856 return atomic_read(&sdata->u.ap.num_mcast_sta); 1857 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta) 1858 return atomic_read(&sdata->u.vlan.num_mcast_sta); 1859 return -1; 1860 } 1861 1862 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, 1863 struct ieee80211_rx_status *status, 1864 unsigned int mpdu_len, 1865 unsigned int mpdu_offset); 1866 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed); 1867 int ieee80211_hw_conf_chan(struct ieee80211_local *local); 1868 void ieee80211_hw_conf_init(struct ieee80211_local *local); 1869 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); 1870 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, 1871 u64 changed); 1872 void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata, 1873 u64 changed); 1874 void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata, 1875 struct ieee80211_link_data *link, 1876 u64 changed); 1877 void ieee80211_configure_filter(struct ieee80211_local *local); 1878 u64 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata); 1879 1880 void ieee80211_handle_queued_frames(struct ieee80211_local *local); 1881 1882 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local); 1883 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 1884 u64 *cookie, gfp_t gfp); 1885 1886 void ieee80211_check_fast_rx(struct sta_info *sta); 1887 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata); 1888 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata); 1889 void ieee80211_clear_fast_rx(struct sta_info *sta); 1890 1891 bool ieee80211_is_our_addr(struct ieee80211_sub_if_data *sdata, 1892 const u8 *addr, int *out_link_id); 1893 1894 /* STA code */ 1895 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata); 1896 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, 1897 struct cfg80211_auth_request *req); 1898 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, 1899 struct cfg80211_assoc_request *req); 1900 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, 1901 struct cfg80211_deauth_request *req); 1902 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, 1903 struct cfg80211_disassoc_request *req); 1904 void ieee80211_send_pspoll(struct ieee80211_local *local, 1905 struct ieee80211_sub_if_data *sdata); 1906 void ieee80211_recalc_ps(struct ieee80211_local *local); 1907 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata); 1908 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata); 1909 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 1910 struct sk_buff *skb); 1911 void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata, 1912 struct sk_buff *skb); 1913 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata); 1914 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata); 1915 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata); 1916 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata, 1917 __le16 fc, bool acked); 1918 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata); 1919 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata); 1920 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata); 1921 void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, 1922 u8 reason, bool tx); 1923 void ieee80211_mgd_setup_link(struct ieee80211_link_data *link); 1924 void ieee80211_mgd_stop_link(struct ieee80211_link_data *link); 1925 void ieee80211_mgd_set_link_qos_params(struct ieee80211_link_data *link); 1926 1927 /* IBSS code */ 1928 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local); 1929 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata); 1930 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata, 1931 const u8 *bssid, const u8 *addr, u32 supp_rates); 1932 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, 1933 struct cfg80211_ibss_params *params); 1934 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata); 1935 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata); 1936 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 1937 struct sk_buff *skb); 1938 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata, 1939 struct cfg80211_csa_settings *csa_settings, 1940 u64 *changed); 1941 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata, 1942 u64 *changed); 1943 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata); 1944 1945 /* OCB code */ 1946 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata); 1947 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata, 1948 const u8 *bssid, const u8 *addr, u32 supp_rates); 1949 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata); 1950 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata, 1951 struct ocb_setup *setup); 1952 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata); 1953 1954 /* mesh code */ 1955 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata); 1956 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 1957 struct sk_buff *skb); 1958 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata, 1959 struct cfg80211_csa_settings *csa_settings, 1960 u64 *changed); 1961 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata, 1962 u64 *changed); 1963 1964 /* scan/BSS handling */ 1965 void ieee80211_scan_work(struct wiphy *wiphy, struct wiphy_work *work); 1966 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata, 1967 const u8 *ssid, u8 ssid_len, 1968 struct ieee80211_channel **channels, 1969 unsigned int n_channels); 1970 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, 1971 struct cfg80211_scan_request *req); 1972 void ieee80211_scan_cancel(struct ieee80211_local *local); 1973 void ieee80211_run_deferred_scan(struct ieee80211_local *local); 1974 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb); 1975 1976 void ieee80211_inform_bss(struct wiphy *wiphy, struct cfg80211_bss *bss, 1977 const struct cfg80211_bss_ies *ies, void *data); 1978 1979 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local); 1980 struct ieee80211_bss * 1981 ieee80211_bss_info_update(struct ieee80211_local *local, 1982 struct ieee80211_rx_status *rx_status, 1983 struct ieee80211_mgmt *mgmt, 1984 size_t len, 1985 struct ieee80211_channel *channel); 1986 void ieee80211_rx_bss_put(struct ieee80211_local *local, 1987 struct ieee80211_bss *bss); 1988 1989 /* scheduled scan handling */ 1990 int 1991 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, 1992 struct cfg80211_sched_scan_request *req); 1993 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, 1994 struct cfg80211_sched_scan_request *req); 1995 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local); 1996 void ieee80211_sched_scan_end(struct ieee80211_local *local); 1997 void ieee80211_sched_scan_stopped_work(struct wiphy *wiphy, 1998 struct wiphy_work *work); 1999 2000 /* off-channel/mgmt-tx */ 2001 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local); 2002 void ieee80211_offchannel_return(struct ieee80211_local *local); 2003 void ieee80211_roc_setup(struct ieee80211_local *local); 2004 void ieee80211_start_next_roc(struct ieee80211_local *local); 2005 void ieee80211_reconfig_roc(struct ieee80211_local *local); 2006 void ieee80211_roc_purge(struct ieee80211_local *local, 2007 struct ieee80211_sub_if_data *sdata); 2008 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev, 2009 struct ieee80211_channel *chan, 2010 unsigned int duration, u64 *cookie); 2011 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, 2012 struct wireless_dev *wdev, u64 cookie); 2013 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 2014 struct cfg80211_mgmt_tx_params *params, u64 *cookie); 2015 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, 2016 struct wireless_dev *wdev, u64 cookie); 2017 2018 /* channel switch handling */ 2019 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work); 2020 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 2021 struct cfg80211_csa_settings *params); 2022 2023 /* color change handling */ 2024 void ieee80211_color_change_finalize_work(struct wiphy *wiphy, 2025 struct wiphy_work *work); 2026 void ieee80211_color_collision_detection_work(struct wiphy *wiphy, 2027 struct wiphy_work *work); 2028 2029 /* interface handling */ 2030 #define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \ 2031 NETIF_F_HW_CSUM | NETIF_F_SG | \ 2032 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE | \ 2033 NETIF_F_HW_TC) 2034 #define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM) 2035 #define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \ 2036 MAC80211_SUPPORTED_FEATURES_RX) 2037 2038 int ieee80211_iface_init(void); 2039 void ieee80211_iface_exit(void); 2040 int ieee80211_if_add(struct ieee80211_local *local, const char *name, 2041 unsigned char name_assign_type, 2042 struct wireless_dev **new_wdev, enum nl80211_iftype type, 2043 struct vif_params *params); 2044 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, 2045 enum nl80211_iftype type); 2046 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata); 2047 void ieee80211_remove_interfaces(struct ieee80211_local *local); 2048 u32 ieee80211_idle_off(struct ieee80211_local *local); 2049 void ieee80211_recalc_idle(struct ieee80211_local *local); 2050 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata, 2051 const int offset); 2052 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up); 2053 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata); 2054 int ieee80211_add_virtual_monitor(struct ieee80211_local *local); 2055 void ieee80211_del_virtual_monitor(struct ieee80211_local *local); 2056 2057 bool __ieee80211_recalc_txpower(struct ieee80211_link_data *link); 2058 void ieee80211_recalc_txpower(struct ieee80211_link_data *link, 2059 bool update_bss); 2060 void ieee80211_recalc_offload(struct ieee80211_local *local); 2061 ieee80211_sdata_running(struct ieee80211_sub_if_data * sdata)2062 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata) 2063 { 2064 return test_bit(SDATA_STATE_RUNNING, &sdata->state); 2065 } 2066 2067 /* link handling */ 2068 void ieee80211_link_setup(struct ieee80211_link_data *link); 2069 void ieee80211_link_init(struct ieee80211_sub_if_data *sdata, 2070 int link_id, 2071 struct ieee80211_link_data *link, 2072 struct ieee80211_bss_conf *link_conf); 2073 void ieee80211_link_stop(struct ieee80211_link_data *link); 2074 int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata, 2075 u16 new_links, u16 dormant_links); ieee80211_vif_clear_links(struct ieee80211_sub_if_data * sdata)2076 static inline void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata) 2077 { 2078 ieee80211_vif_set_links(sdata, 0, 0); 2079 } 2080 2081 /* tx handling */ 2082 void ieee80211_clear_tx_pending(struct ieee80211_local *local); 2083 void ieee80211_tx_pending(struct tasklet_struct *t); 2084 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb, 2085 struct net_device *dev); 2086 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, 2087 struct net_device *dev); 2088 netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb, 2089 struct net_device *dev); 2090 void __ieee80211_subif_start_xmit(struct sk_buff *skb, 2091 struct net_device *dev, 2092 u32 info_flags, 2093 u32 ctrl_flags, 2094 u64 *cookie); 2095 struct sk_buff * 2096 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata, 2097 struct sk_buff *skb, u32 info_flags); 2098 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb, 2099 int retry_count, struct ieee80211_tx_status *status); 2100 2101 void ieee80211_check_fast_xmit(struct sta_info *sta); 2102 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local); 2103 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata); 2104 void ieee80211_clear_fast_xmit(struct sta_info *sta); 2105 int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev, 2106 const u8 *buf, size_t len, 2107 const u8 *dest, __be16 proto, bool unencrypted, 2108 int link_id, u64 *cookie); 2109 int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev, 2110 const u8 *buf, size_t len); 2111 void __ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata, 2112 struct sta_info *sta, 2113 struct ieee80211_fast_tx *fast_tx, 2114 struct sk_buff *skb, bool ampdu, 2115 const u8 *da, const u8 *sa); 2116 void ieee80211_aggr_check(struct ieee80211_sub_if_data *sdata, 2117 struct sta_info *sta, struct sk_buff *skb); 2118 2119 /* HT */ 2120 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, 2121 struct ieee80211_sta_ht_cap *ht_cap); 2122 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, 2123 struct ieee80211_supported_band *sband, 2124 const struct ieee80211_ht_cap *ht_cap_ie, 2125 struct link_sta_info *link_sta); 2126 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, 2127 const u8 *da, u16 tid, 2128 u16 initiator, u16 reason_code); 2129 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata, 2130 enum ieee80211_smps_mode smps, const u8 *da, 2131 const u8 *bssid, int link_id); 2132 void ieee80211_add_addbaext(struct sk_buff *skb, 2133 const u8 req_addba_ext_data, 2134 u16 buf_size); 2135 u8 ieee80211_retrieve_addba_ext_data(struct sta_info *sta, 2136 const void *elem_data, ssize_t elem_len, 2137 u16 *buf_size); 2138 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, 2139 u16 initiator, u16 reason, bool stop); 2140 void __ieee80211_start_rx_ba_session(struct sta_info *sta, 2141 u8 dialog_token, u16 timeout, 2142 u16 start_seq_num, u16 ba_policy, u16 tid, 2143 u16 buf_size, bool tx, bool auto_seq, 2144 const u8 addba_ext_data); 2145 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, 2146 enum ieee80211_agg_stop_reason reason); 2147 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, 2148 struct sta_info *sta, 2149 struct ieee80211_mgmt *mgmt, size_t len); 2150 void ieee80211_process_addba_resp(struct ieee80211_local *local, 2151 struct sta_info *sta, 2152 struct ieee80211_mgmt *mgmt, 2153 size_t len); 2154 void ieee80211_process_addba_request(struct ieee80211_local *local, 2155 struct sta_info *sta, 2156 struct ieee80211_mgmt *mgmt, 2157 size_t len); 2158 2159 static inline struct ieee80211_mgmt * ieee80211_mgmt_ba(struct sk_buff * skb,const u8 * da,struct ieee80211_sub_if_data * sdata)2160 ieee80211_mgmt_ba(struct sk_buff *skb, const u8 *da, 2161 struct ieee80211_sub_if_data *sdata) 2162 { 2163 struct ieee80211_mgmt *mgmt = skb_put_zero(skb, 24); 2164 2165 ether_addr_copy(mgmt->da, da); 2166 ether_addr_copy(mgmt->sa, sdata->vif.addr); 2167 2168 if (sdata->vif.type == NL80211_IFTYPE_AP || 2169 sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 2170 sdata->vif.type == NL80211_IFTYPE_MESH_POINT) 2171 ether_addr_copy(mgmt->bssid, sdata->vif.addr); 2172 else if (sdata->vif.type == NL80211_IFTYPE_STATION) 2173 ether_addr_copy(mgmt->bssid, sdata->vif.cfg.ap_addr); 2174 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) 2175 ether_addr_copy(mgmt->bssid, sdata->u.ibss.bssid); 2176 2177 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 2178 IEEE80211_STYPE_ACTION); 2179 return mgmt; 2180 } 2181 2182 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, 2183 enum ieee80211_agg_stop_reason reason); 2184 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid, 2185 struct tid_ampdu_tx *tid_tx); 2186 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid, 2187 struct tid_ampdu_tx *tid_tx); 2188 void ieee80211_ba_session_work(struct wiphy *wiphy, struct wiphy_work *work); 2189 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid); 2190 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid); 2191 2192 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs); 2193 enum nl80211_smps_mode 2194 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps); 2195 2196 /* VHT */ 2197 void 2198 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, 2199 struct ieee80211_supported_band *sband, 2200 const struct ieee80211_vht_cap *vht_cap_ie, 2201 const struct ieee80211_vht_cap *vht_cap_ie2, 2202 struct link_sta_info *link_sta); 2203 enum ieee80211_sta_rx_bandwidth 2204 _ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta, 2205 struct cfg80211_chan_def *chandef); 2206 static inline enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct link_sta_info * link_sta)2207 ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta) 2208 { 2209 return _ieee80211_sta_cap_rx_bw(link_sta, NULL); 2210 } 2211 enum ieee80211_sta_rx_bandwidth 2212 _ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta, 2213 struct cfg80211_chan_def *chandef); 2214 static inline enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct link_sta_info * link_sta)2215 ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta) 2216 { 2217 return _ieee80211_sta_cur_vht_bw(link_sta, NULL); 2218 } 2219 void ieee80211_sta_init_nss(struct link_sta_info *link_sta); 2220 enum nl80211_chan_width 2221 ieee80211_sta_cap_chan_bw(struct link_sta_info *link_sta); 2222 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata, 2223 struct ieee80211_link_data *link, 2224 struct ieee80211_mgmt *mgmt); 2225 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, 2226 struct link_sta_info *sta, 2227 u8 opmode, enum nl80211_band band); 2228 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, 2229 struct link_sta_info *sta, 2230 u8 opmode, enum nl80211_band band); 2231 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata, 2232 struct ieee80211_sta_vht_cap *vht_cap); 2233 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap, 2234 u16 vht_mask[NL80211_VHT_NSS_MAX]); 2235 enum nl80211_chan_width 2236 ieee80211_sta_rx_bw_to_chan_width(struct link_sta_info *sta); 2237 2238 /* HE */ 2239 void 2240 ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata, 2241 struct ieee80211_supported_band *sband, 2242 const u8 *he_cap_ie, u8 he_cap_len, 2243 const struct ieee80211_he_6ghz_capa *he_6ghz_capa, 2244 struct link_sta_info *link_sta); 2245 void 2246 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif, 2247 const struct ieee80211_he_spr *he_spr_ie_elem); 2248 2249 void 2250 ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif, 2251 const struct ieee80211_he_operation *he_op_ie_elem); 2252 2253 /* S1G */ 2254 void ieee80211_s1g_sta_rate_init(struct sta_info *sta); 2255 bool ieee80211_s1g_is_twt_setup(struct sk_buff *skb); 2256 void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata, 2257 struct sk_buff *skb); 2258 void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata, 2259 struct sk_buff *skb); 2260 2261 /* Spectrum management */ 2262 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, 2263 struct ieee80211_mgmt *mgmt, 2264 size_t len); 2265 /** 2266 * ieee80211_parse_ch_switch_ie - parses channel switch IEs 2267 * @sdata: the sdata of the interface which has received the frame 2268 * @elems: parsed 802.11 elements received with the frame 2269 * @current_band: indicates the current band 2270 * @vht_cap_info: VHT capabilities of the transmitter 2271 * @conn: contains information about own capabilities and restrictions 2272 * to decide which channel switch announcements can be accepted 2273 * @bssid: the currently connected bssid (for reporting) 2274 * @unprot_action: whether the frame was an unprotected frame or not, 2275 * used for reporting 2276 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl. 2277 * All of them will be filled with if success only. 2278 * Return: 0 on success, <0 on error and >0 if there is nothing to parse. 2279 */ 2280 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata, 2281 struct ieee802_11_elems *elems, 2282 enum nl80211_band current_band, 2283 u32 vht_cap_info, 2284 struct ieee80211_conn_settings *conn, 2285 u8 *bssid, bool unprot_action, 2286 struct ieee80211_csa_ie *csa_ie); 2287 2288 /* Suspend/resume and hw reconfiguration */ 2289 int ieee80211_reconfig(struct ieee80211_local *local); 2290 void ieee80211_stop_device(struct ieee80211_local *local, bool suspend); 2291 2292 int __ieee80211_suspend(struct ieee80211_hw *hw, 2293 struct cfg80211_wowlan *wowlan); 2294 __ieee80211_resume(struct ieee80211_hw * hw)2295 static inline int __ieee80211_resume(struct ieee80211_hw *hw) 2296 { 2297 struct ieee80211_local *local = hw_to_local(hw); 2298 2299 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) && 2300 !test_bit(SCAN_COMPLETED, &local->scanning), 2301 "%s: resume with hardware scan still in progress\n", 2302 wiphy_name(hw->wiphy)); 2303 2304 return ieee80211_reconfig(hw_to_local(hw)); 2305 } 2306 2307 /* utility functions/constants */ 2308 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */ 2309 const char *ieee80211_conn_mode_str(enum ieee80211_conn_mode mode); 2310 enum ieee80211_conn_bw_limit 2311 ieee80211_min_bw_limit_from_chandef(struct cfg80211_chan_def *chandef); 2312 int ieee80211_frame_duration(enum nl80211_band band, size_t len, 2313 int rate, int erp, int short_preamble); 2314 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, 2315 struct ieee80211_tx_queue_params *qparam, 2316 int ac); 2317 void ieee80211_clear_tpe(struct ieee80211_parsed_tpe *tpe); 2318 void ieee80211_set_wmm_default(struct ieee80211_link_data *link, 2319 bool bss_notify, bool enable_qos); 2320 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, 2321 struct sta_info *sta, struct sk_buff *skb); 2322 2323 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, 2324 struct sk_buff *skb, int tid, int link_id, 2325 enum nl80211_band band); 2326 2327 /* sta_out needs to be checked for ERR_PTR() before using */ 2328 int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata, 2329 struct sk_buff *skb, 2330 struct sta_info **sta_out); 2331 2332 static inline void ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data * sdata,struct sk_buff * skb,int tid,enum nl80211_band band)2333 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, 2334 struct sk_buff *skb, int tid, 2335 enum nl80211_band band) 2336 { 2337 rcu_read_lock(); 2338 __ieee80211_tx_skb_tid_band(sdata, skb, tid, -1, band); 2339 rcu_read_unlock(); 2340 } 2341 2342 void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata, 2343 struct sk_buff *skb, int tid, int link_id); 2344 ieee80211_tx_skb(struct ieee80211_sub_if_data * sdata,struct sk_buff * skb)2345 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, 2346 struct sk_buff *skb) 2347 { 2348 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */ 2349 ieee80211_tx_skb_tid(sdata, skb, 7, -1); 2350 } 2351 2352 /** 2353 * struct ieee80211_elems_parse_params - element parsing parameters 2354 * @mode: connection mode for parsing 2355 * @start: pointer to the elements 2356 * @len: length of the elements 2357 * @action: %true if the elements came from an action frame 2358 * @filter: bitmap of element IDs to filter out while calculating 2359 * the element CRC 2360 * @crc: CRC starting value 2361 * @bss: the BSS to parse this as, for multi-BSSID cases this can 2362 * represent a non-transmitting BSS in which case the data 2363 * for that non-transmitting BSS is returned 2364 * @link_id: the link ID to parse elements for, if a STA profile 2365 * is present in the multi-link element, or -1 to ignore; 2366 * note that the code currently assumes parsing an association 2367 * (or re-association) response frame if this is given 2368 * @from_ap: frame is received from an AP (currently used only 2369 * for EHT capabilities parsing) 2370 */ 2371 struct ieee80211_elems_parse_params { 2372 enum ieee80211_conn_mode mode; 2373 const u8 *start; 2374 size_t len; 2375 bool action; 2376 u64 filter; 2377 u32 crc; 2378 struct cfg80211_bss *bss; 2379 int link_id; 2380 bool from_ap; 2381 }; 2382 2383 struct ieee802_11_elems * 2384 ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params); 2385 2386 static inline struct ieee802_11_elems * ieee802_11_parse_elems_crc(const u8 * start,size_t len,bool action,u64 filter,u32 crc,struct cfg80211_bss * bss)2387 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, 2388 u64 filter, u32 crc, 2389 struct cfg80211_bss *bss) 2390 { 2391 struct ieee80211_elems_parse_params params = { 2392 .mode = IEEE80211_CONN_MODE_HIGHEST, 2393 .start = start, 2394 .len = len, 2395 .action = action, 2396 .filter = filter, 2397 .crc = crc, 2398 .bss = bss, 2399 .link_id = -1, 2400 }; 2401 2402 return ieee802_11_parse_elems_full(¶ms); 2403 } 2404 2405 static inline struct ieee802_11_elems * ieee802_11_parse_elems(const u8 * start,size_t len,bool action,struct cfg80211_bss * bss)2406 ieee802_11_parse_elems(const u8 *start, size_t len, bool action, 2407 struct cfg80211_bss *bss) 2408 { 2409 return ieee802_11_parse_elems_crc(start, len, action, 0, 0, bss); 2410 } 2411 2412 extern const int ieee802_1d_to_ac[8]; 2413 ieee80211_ac_from_tid(int tid)2414 static inline int ieee80211_ac_from_tid(int tid) 2415 { 2416 return ieee802_1d_to_ac[tid & 7]; 2417 } 2418 2419 void ieee80211_dynamic_ps_enable_work(struct wiphy *wiphy, 2420 struct wiphy_work *work); 2421 void ieee80211_dynamic_ps_disable_work(struct wiphy *wiphy, 2422 struct wiphy_work *work); 2423 void ieee80211_dynamic_ps_timer(struct timer_list *t); 2424 void ieee80211_send_nullfunc(struct ieee80211_local *local, 2425 struct ieee80211_sub_if_data *sdata, 2426 bool powersave); 2427 void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local, 2428 struct ieee80211_sub_if_data *sdata); 2429 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata, 2430 struct ieee80211_hdr *hdr, bool ack, u16 tx_time); 2431 unsigned int 2432 ieee80211_get_vif_queues(struct ieee80211_local *local, 2433 struct ieee80211_sub_if_data *sdata); 2434 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, 2435 unsigned long queues, 2436 enum queue_stop_reason reason, 2437 bool refcounted); 2438 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, 2439 unsigned long queues, 2440 enum queue_stop_reason reason, 2441 bool refcounted); 2442 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, 2443 enum queue_stop_reason reason, 2444 bool refcounted); 2445 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, 2446 enum queue_stop_reason reason, 2447 bool refcounted); 2448 static inline void ieee80211_stop_vif_queues(struct ieee80211_local * local,struct ieee80211_sub_if_data * sdata,enum queue_stop_reason reason)2449 ieee80211_stop_vif_queues(struct ieee80211_local *local, 2450 struct ieee80211_sub_if_data *sdata, 2451 enum queue_stop_reason reason) 2452 { 2453 ieee80211_stop_queues_by_reason(&local->hw, 2454 ieee80211_get_vif_queues(local, sdata), 2455 reason, true); 2456 } 2457 2458 static inline void ieee80211_wake_vif_queues(struct ieee80211_local * local,struct ieee80211_sub_if_data * sdata,enum queue_stop_reason reason)2459 ieee80211_wake_vif_queues(struct ieee80211_local *local, 2460 struct ieee80211_sub_if_data *sdata, 2461 enum queue_stop_reason reason) 2462 { 2463 ieee80211_wake_queues_by_reason(&local->hw, 2464 ieee80211_get_vif_queues(local, sdata), 2465 reason, true); 2466 } 2467 static inline void ieee80211_stop_vif_queues_norefcount(struct ieee80211_local * local,struct ieee80211_sub_if_data * sdata,enum queue_stop_reason reason)2468 ieee80211_stop_vif_queues_norefcount(struct ieee80211_local *local, 2469 struct ieee80211_sub_if_data *sdata, 2470 enum queue_stop_reason reason) 2471 { 2472 ieee80211_stop_queues_by_reason(&local->hw, 2473 ieee80211_get_vif_queues(local, sdata), 2474 reason, false); 2475 } 2476 static inline void ieee80211_wake_vif_queues_norefcount(struct ieee80211_local * local,struct ieee80211_sub_if_data * sdata,enum queue_stop_reason reason)2477 ieee80211_wake_vif_queues_norefcount(struct ieee80211_local *local, 2478 struct ieee80211_sub_if_data *sdata, 2479 enum queue_stop_reason reason) 2480 { 2481 ieee80211_wake_queues_by_reason(&local->hw, 2482 ieee80211_get_vif_queues(local, sdata), 2483 reason, false); 2484 } 2485 void ieee80211_add_pending_skb(struct ieee80211_local *local, 2486 struct sk_buff *skb); 2487 void ieee80211_add_pending_skbs(struct ieee80211_local *local, 2488 struct sk_buff_head *skbs); 2489 void ieee80211_flush_queues(struct ieee80211_local *local, 2490 struct ieee80211_sub_if_data *sdata, bool drop); 2491 void __ieee80211_flush_queues(struct ieee80211_local *local, 2492 struct ieee80211_sub_if_data *sdata, 2493 unsigned int queues, bool drop); 2494 ieee80211_can_run_worker(struct ieee80211_local * local)2495 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local) 2496 { 2497 /* 2498 * It's unsafe to try to do any work during reconfigure flow. 2499 * When the flow ends the work will be requeued. 2500 */ 2501 if (local->in_reconfig) 2502 return false; 2503 2504 /* 2505 * If quiescing is set, we are racing with __ieee80211_suspend. 2506 * __ieee80211_suspend flushes the workers after setting quiescing, 2507 * and we check quiescing / suspended before enqueuing new workers. 2508 * We should abort the worker to avoid the races below. 2509 */ 2510 if (local->quiescing) 2511 return false; 2512 2513 /* 2514 * We might already be suspended if the following scenario occurs: 2515 * __ieee80211_suspend Control path 2516 * 2517 * if (local->quiescing) 2518 * return; 2519 * local->quiescing = true; 2520 * flush_workqueue(); 2521 * queue_work(...); 2522 * local->suspended = true; 2523 * local->quiescing = false; 2524 * worker starts running... 2525 */ 2526 if (local->suspended) 2527 return false; 2528 2529 return true; 2530 } 2531 2532 int ieee80211_txq_setup_flows(struct ieee80211_local *local); 2533 void ieee80211_txq_set_params(struct ieee80211_local *local); 2534 void ieee80211_txq_teardown_flows(struct ieee80211_local *local); 2535 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata, 2536 struct sta_info *sta, 2537 struct txq_info *txq, int tid); 2538 void ieee80211_txq_purge(struct ieee80211_local *local, 2539 struct txq_info *txqi); 2540 void ieee80211_purge_sta_txqs(struct sta_info *sta); 2541 void ieee80211_txq_remove_vlan(struct ieee80211_local *local, 2542 struct ieee80211_sub_if_data *sdata); 2543 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 2544 struct txq_info *txqi); 2545 void ieee80211_wake_txqs(struct tasklet_struct *t); 2546 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, 2547 u16 transaction, u16 auth_alg, u16 status, 2548 const u8 *extra, size_t extra_len, const u8 *bssid, 2549 const u8 *da, const u8 *key, u8 key_len, u8 key_idx, 2550 u32 tx_flags); 2551 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, 2552 const u8 *da, const u8 *bssid, 2553 u16 stype, u16 reason, 2554 bool send_frame, u8 *frame_buf); 2555 2556 enum { 2557 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0), 2558 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1), 2559 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2), 2560 }; 2561 2562 int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer, 2563 size_t buffer_len, 2564 struct ieee80211_scan_ies *ie_desc, 2565 const u8 *ie, size_t ie_len, 2566 u8 bands_used, u32 *rate_masks, 2567 struct cfg80211_chan_def *chandef, 2568 u32 flags); 2569 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, 2570 const u8 *src, const u8 *dst, 2571 u32 ratemask, 2572 struct ieee80211_channel *chan, 2573 const u8 *ssid, size_t ssid_len, 2574 const u8 *ie, size_t ie_len, 2575 u32 flags); 2576 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, 2577 struct ieee802_11_elems *elems, 2578 enum nl80211_band band, u32 *basic_rates); 2579 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2580 struct ieee80211_link_data *link, 2581 enum ieee80211_smps_mode smps_mode); 2582 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata, 2583 struct ieee80211_link_data *link); 2584 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata, 2585 int link_id); 2586 2587 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset); 2588 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 2589 u16 cap); 2590 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 2591 const struct cfg80211_chan_def *chandef, 2592 u16 prot_mode, bool rifs_mode); 2593 void ieee80211_ie_build_wide_bw_cs(u8 *pos, 2594 const struct cfg80211_chan_def *chandef); 2595 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2596 u32 cap); 2597 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2598 const struct cfg80211_chan_def *chandef); 2599 u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata); 2600 u8 *ieee80211_ie_build_he_oper(u8 *pos, const struct cfg80211_chan_def *chandef); 2601 u8 *ieee80211_ie_build_eht_oper(u8 *pos, const struct cfg80211_chan_def *chandef, 2602 const struct ieee80211_sta_eht_cap *eht_cap); 2603 int ieee80211_parse_bitrates(enum nl80211_chan_width width, 2604 const struct ieee80211_supported_band *sband, 2605 const u8 *srates, int srates_len, u32 *rates); 2606 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo); 2607 void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata, 2608 struct ieee80211_sta_s1g_cap *caps, 2609 struct sk_buff *skb); 2610 void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata, 2611 struct sk_buff *skb); 2612 2613 /* element building in SKBs */ 2614 int ieee80211_put_srates_elem(struct sk_buff *skb, 2615 const struct ieee80211_supported_band *sband, 2616 u32 basic_rates, u32 rate_flags, u32 masked_rates, 2617 u8 element_id); 2618 int ieee80211_put_he_cap(struct sk_buff *skb, 2619 struct ieee80211_sub_if_data *sdata, 2620 const struct ieee80211_supported_band *sband, 2621 const struct ieee80211_conn_settings *conn); 2622 int ieee80211_put_he_6ghz_cap(struct sk_buff *skb, 2623 struct ieee80211_sub_if_data *sdata, 2624 enum ieee80211_smps_mode smps_mode); 2625 int ieee80211_put_eht_cap(struct sk_buff *skb, 2626 struct ieee80211_sub_if_data *sdata, 2627 const struct ieee80211_supported_band *sband, 2628 const struct ieee80211_conn_settings *conn); 2629 2630 /* channel management */ 2631 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper, 2632 struct cfg80211_chan_def *chandef); 2633 bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info, 2634 const struct ieee80211_vht_operation *oper, 2635 const struct ieee80211_ht_operation *htop, 2636 struct cfg80211_chan_def *chandef); 2637 void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation_info *info, 2638 struct cfg80211_chan_def *chandef); 2639 bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_local *local, 2640 const struct ieee80211_he_operation *he_oper, 2641 const struct ieee80211_eht_operation *eht_oper, 2642 struct cfg80211_chan_def *chandef); 2643 bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper, 2644 struct cfg80211_chan_def *chandef); 2645 void ieee80211_chandef_downgrade(struct cfg80211_chan_def *chandef, 2646 struct ieee80211_conn_settings *conn); 2647 static inline void ieee80211_chanreq_downgrade(struct ieee80211_chan_req * chanreq,struct ieee80211_conn_settings * conn)2648 ieee80211_chanreq_downgrade(struct ieee80211_chan_req *chanreq, 2649 struct ieee80211_conn_settings *conn) 2650 { 2651 ieee80211_chandef_downgrade(&chanreq->oper, conn); 2652 if (WARN_ON(!conn)) 2653 return; 2654 if (conn->mode < IEEE80211_CONN_MODE_EHT) 2655 chanreq->ap.chan = NULL; 2656 } 2657 2658 bool ieee80211_chanreq_identical(const struct ieee80211_chan_req *a, 2659 const struct ieee80211_chan_req *b); 2660 2661 int __must_check 2662 _ieee80211_link_use_channel(struct ieee80211_link_data *link, 2663 const struct ieee80211_chan_req *req, 2664 enum ieee80211_chanctx_mode mode, 2665 bool assign_on_failure); 2666 2667 static inline int __must_check ieee80211_link_use_channel(struct ieee80211_link_data * link,const struct ieee80211_chan_req * req,enum ieee80211_chanctx_mode mode)2668 ieee80211_link_use_channel(struct ieee80211_link_data *link, 2669 const struct ieee80211_chan_req *req, 2670 enum ieee80211_chanctx_mode mode) 2671 { 2672 return _ieee80211_link_use_channel(link, req, mode, false); 2673 } 2674 2675 int __must_check 2676 ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link, 2677 const struct ieee80211_chan_req *req, 2678 enum ieee80211_chanctx_mode mode, 2679 bool radar_required); 2680 int __must_check 2681 ieee80211_link_use_reserved_context(struct ieee80211_link_data *link); 2682 int ieee80211_link_unreserve_chanctx(struct ieee80211_link_data *link); 2683 2684 int __must_check 2685 ieee80211_link_change_chanreq(struct ieee80211_link_data *link, 2686 const struct ieee80211_chan_req *req, 2687 u64 *changed); 2688 void __ieee80211_link_release_channel(struct ieee80211_link_data *link, 2689 bool skip_idle_recalc); 2690 void ieee80211_link_release_channel(struct ieee80211_link_data *link); 2691 void ieee80211_link_vlan_copy_chanctx(struct ieee80211_link_data *link); 2692 void ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link, 2693 bool clear); 2694 int ieee80211_chanctx_refcount(struct ieee80211_local *local, 2695 struct ieee80211_chanctx *ctx); 2696 2697 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local, 2698 struct ieee80211_chanctx *chanctx); 2699 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local, 2700 struct ieee80211_chanctx *ctx, 2701 struct ieee80211_link_data *rsvd_for, 2702 bool check_reserved); 2703 bool ieee80211_is_radar_required(struct ieee80211_local *local); 2704 2705 void ieee80211_dfs_cac_timer_work(struct wiphy *wiphy, struct wiphy_work *work); 2706 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local, 2707 struct ieee80211_chanctx *chanctx); 2708 void ieee80211_dfs_radar_detected_work(struct wiphy *wiphy, 2709 struct wiphy_work *work); 2710 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, 2711 struct cfg80211_csa_settings *csa_settings); 2712 2713 void ieee80211_recalc_dtim(struct ieee80211_local *local, 2714 struct ieee80211_sub_if_data *sdata); 2715 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, 2716 const struct cfg80211_chan_def *chandef, 2717 enum ieee80211_chanctx_mode chanmode, 2718 u8 radar_detect, int radio_idx); 2719 int ieee80211_max_num_channels(struct ieee80211_local *local, int radio_idx); 2720 u32 ieee80211_get_radio_mask(struct wiphy *wiphy, struct net_device *dev); 2721 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local, 2722 struct ieee80211_chanctx *ctx); 2723 2724 /* TDLS */ 2725 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 2726 const u8 *peer, int link_id, 2727 u8 action_code, u8 dialog_token, u16 status_code, 2728 u32 peer_capability, bool initiator, 2729 const u8 *extra_ies, size_t extra_ies_len); 2730 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 2731 const u8 *peer, enum nl80211_tdls_operation oper); 2732 void ieee80211_tdls_peer_del_work(struct wiphy *wiphy, struct wiphy_work *wk); 2733 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev, 2734 const u8 *addr, u8 oper_class, 2735 struct cfg80211_chan_def *chandef); 2736 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy, 2737 struct net_device *dev, 2738 const u8 *addr); 2739 void ieee80211_teardown_tdls_peers(struct ieee80211_link_data *link); 2740 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata, 2741 const u8 *peer, u16 reason); 2742 void 2743 ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata, 2744 struct sk_buff *skb); 2745 2746 2747 const char *ieee80211_get_reason_code_string(u16 reason_code); 2748 u16 ieee80211_encode_usf(int val); 2749 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, 2750 enum nl80211_iftype type); 2751 2752 extern const struct ethtool_ops ieee80211_ethtool_ops; 2753 2754 u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw, 2755 struct ieee80211_vif *vif, 2756 struct ieee80211_sta *pubsta, 2757 int len, bool ampdu); 2758 #ifdef CONFIG_MAC80211_NOINLINE 2759 #define debug_noinline noinline 2760 #else 2761 #define debug_noinline 2762 #endif 2763 2764 void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache); 2765 void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache); 2766 2767 u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata); 2768 2769 void 2770 ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata, 2771 struct ieee80211_supported_band *sband, 2772 const u8 *he_cap_ie, u8 he_cap_len, 2773 const struct ieee80211_eht_cap_elem *eht_cap_ie_elem, 2774 u8 eht_cap_len, 2775 struct link_sta_info *link_sta); 2776 void ieee80211_process_neg_ttlm_req(struct ieee80211_sub_if_data *sdata, 2777 struct ieee80211_mgmt *mgmt, size_t len); 2778 void ieee80211_process_neg_ttlm_res(struct ieee80211_sub_if_data *sdata, 2779 struct ieee80211_mgmt *mgmt, size_t len); 2780 int ieee80211_req_neg_ttlm(struct ieee80211_sub_if_data *sdata, 2781 struct cfg80211_ttlm_params *params); 2782 void ieee80211_process_ttlm_teardown(struct ieee80211_sub_if_data *sdata); 2783 2784 void ieee80211_check_wbrf_support(struct ieee80211_local *local); 2785 void ieee80211_add_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef); 2786 void ieee80211_remove_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef); 2787 int ieee80211_mgd_set_epcs(struct ieee80211_sub_if_data *sdata, bool enable); 2788 void ieee80211_process_epcs_ena_resp(struct ieee80211_sub_if_data *sdata, 2789 struct ieee80211_mgmt *mgmt, size_t len); 2790 void ieee80211_process_epcs_teardown(struct ieee80211_sub_if_data *sdata, 2791 struct ieee80211_mgmt *mgmt, size_t len); 2792 2793 int ieee80211_mgd_assoc_ml_reconf(struct ieee80211_sub_if_data *sdata, 2794 struct cfg80211_ml_reconf_req *req); 2795 2796 void ieee80211_process_ml_reconf_resp(struct ieee80211_sub_if_data *sdata, 2797 struct ieee80211_mgmt *mgmt, size_t len); 2798 #if IS_ENABLED(CONFIG_MAC80211_KUNIT_TEST) 2799 #define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym) EXPORT_SYMBOL_IF_KUNIT(sym) 2800 #define VISIBLE_IF_MAC80211_KUNIT 2801 ieee80211_rx_result 2802 ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx); 2803 int ieee80211_calc_chandef_subchan_offset(const struct cfg80211_chan_def *ap, 2804 u8 n_partial_subchans); 2805 void ieee80211_rearrange_tpe_psd(struct ieee80211_parsed_tpe_psd *psd, 2806 const struct cfg80211_chan_def *ap, 2807 const struct cfg80211_chan_def *used); 2808 struct ieee802_11_elems * 2809 ieee80211_determine_chan_mode(struct ieee80211_sub_if_data *sdata, 2810 struct ieee80211_conn_settings *conn, 2811 struct cfg80211_bss *cbss, int link_id, 2812 struct ieee80211_chan_req *chanreq, 2813 struct cfg80211_chan_def *ap_chandef, 2814 unsigned long *userspace_selectors); 2815 #else 2816 #define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym) 2817 #define VISIBLE_IF_MAC80211_KUNIT static 2818 #endif 2819 2820 #endif /* IEEE80211_I_H */ 2821