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 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 s1g_short_beacon_data { 300 struct rcu_head rcu_head; 301 u8 *short_head; 302 u8 *short_tail; 303 int short_head_len; 304 int short_tail_len; 305 }; 306 307 struct ps_data { 308 /* yes, this looks ugly, but guarantees that we can later use 309 * bitmap_empty :) 310 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */ 311 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)] 312 __aligned(__alignof__(unsigned long)); 313 struct sk_buff_head bc_buf; 314 atomic_t num_sta_ps; /* number of stations in PS mode */ 315 int dtim_count; 316 bool dtim_bc_mc; 317 int sb_count; /* num short beacons til next long beacon */ 318 }; 319 320 struct ieee80211_if_ap { 321 struct list_head vlans; /* write-protected with RTNL and local->mtx */ 322 323 struct ps_data ps; 324 atomic_t num_mcast_sta; /* number of stations receiving multicast */ 325 326 bool multicast_to_unicast; 327 bool active; 328 }; 329 330 struct ieee80211_if_vlan { 331 struct list_head list; /* write-protected with RTNL and local->mtx */ 332 333 /* used for all tx if the VLAN is configured to 4-addr mode */ 334 struct sta_info __rcu *sta; 335 atomic_t num_mcast_sta; /* number of stations receiving multicast */ 336 }; 337 338 struct mesh_stats { 339 __u32 fwded_mcast; /* Mesh forwarded multicast frames */ 340 __u32 fwded_unicast; /* Mesh forwarded unicast frames */ 341 __u32 fwded_frames; /* Mesh total forwarded frames */ 342 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/ 343 __u32 dropped_frames_no_route; /* Not transmitted, no route found */ 344 }; 345 346 #define PREQ_Q_F_START 0x1 347 #define PREQ_Q_F_REFRESH 0x2 348 struct mesh_preq_queue { 349 struct list_head list; 350 u8 dst[ETH_ALEN]; 351 u8 flags; 352 }; 353 354 struct ieee80211_roc_work { 355 struct list_head list; 356 357 struct ieee80211_sub_if_data *sdata; 358 359 struct ieee80211_channel *chan; 360 361 bool started, abort, hw_begun, notified; 362 bool on_channel; 363 364 unsigned long start_time; 365 366 u32 duration, req_duration; 367 struct sk_buff *frame; 368 u64 cookie, mgmt_tx_cookie; 369 enum ieee80211_roc_type type; 370 }; 371 372 /* flags used in struct ieee80211_if_managed.flags */ 373 enum ieee80211_sta_flags { 374 IEEE80211_STA_CONNECTION_POLL = BIT(1), 375 IEEE80211_STA_CONTROL_PORT = BIT(2), 376 IEEE80211_STA_MFP_ENABLED = BIT(6), 377 IEEE80211_STA_UAPSD_ENABLED = BIT(7), 378 IEEE80211_STA_NULLFUNC_ACKED = BIT(8), 379 IEEE80211_STA_ENABLE_RRM = BIT(15), 380 }; 381 382 enum ieee80211_conn_mode { 383 IEEE80211_CONN_MODE_S1G, 384 IEEE80211_CONN_MODE_LEGACY, 385 IEEE80211_CONN_MODE_HT, 386 IEEE80211_CONN_MODE_VHT, 387 IEEE80211_CONN_MODE_HE, 388 IEEE80211_CONN_MODE_EHT, 389 }; 390 391 #define IEEE80211_CONN_MODE_HIGHEST IEEE80211_CONN_MODE_EHT 392 393 enum ieee80211_conn_bw_limit { 394 IEEE80211_CONN_BW_LIMIT_20, 395 IEEE80211_CONN_BW_LIMIT_40, 396 IEEE80211_CONN_BW_LIMIT_80, 397 IEEE80211_CONN_BW_LIMIT_160, /* also 80+80 */ 398 IEEE80211_CONN_BW_LIMIT_320, 399 }; 400 401 struct ieee80211_conn_settings { 402 enum ieee80211_conn_mode mode; 403 enum ieee80211_conn_bw_limit bw_limit; 404 }; 405 406 extern const struct ieee80211_conn_settings ieee80211_conn_settings_unlimited; 407 408 struct ieee80211_mgd_auth_data { 409 struct cfg80211_bss *bss; 410 unsigned long timeout; 411 int tries; 412 u16 algorithm, expected_transaction; 413 414 unsigned long userspace_selectors[BITS_TO_LONGS(128)]; 415 416 u8 key[WLAN_KEY_LEN_WEP104]; 417 u8 key_len, key_idx; 418 bool done, waiting; 419 bool peer_confirmed; 420 bool timeout_started; 421 int link_id; 422 423 u8 ap_addr[ETH_ALEN] __aligned(2); 424 425 u16 sae_trans, sae_status; 426 size_t data_len; 427 u8 data[]; 428 }; 429 430 struct ieee80211_mgd_assoc_data { 431 struct { 432 struct cfg80211_bss *bss; 433 434 u8 addr[ETH_ALEN] __aligned(2); 435 436 u8 ap_ht_param; 437 438 struct ieee80211_vht_cap ap_vht_cap; 439 440 size_t elems_len; 441 u8 *elems; /* pointing to inside ie[] below */ 442 443 struct ieee80211_conn_settings conn; 444 445 u16 status; 446 447 bool disabled; 448 } link[IEEE80211_MLD_MAX_NUM_LINKS]; 449 450 u8 ap_addr[ETH_ALEN] __aligned(2); 451 452 /* this is for a workaround, so we use it only for non-MLO */ 453 const u8 *supp_rates; 454 u8 supp_rates_len; 455 456 unsigned long timeout; 457 int tries; 458 459 u8 prev_ap_addr[ETH_ALEN]; 460 u8 ssid[IEEE80211_MAX_SSID_LEN]; 461 u8 ssid_len; 462 bool wmm, uapsd; 463 bool need_beacon; 464 bool synced; 465 bool timeout_started; 466 bool comeback; /* whether the AP has requested association comeback */ 467 bool s1g; 468 bool spp_amsdu; 469 470 s8 assoc_link_id; 471 472 __le16 ext_mld_capa_ops; 473 474 u8 fils_nonces[2 * FILS_NONCE_LEN]; 475 u8 fils_kek[FILS_MAX_KEK_LEN]; 476 size_t fils_kek_len; 477 478 size_t ie_len; 479 u8 *ie_pos; /* used to fill ie[] with link[].elems */ 480 u8 ie[]; 481 }; 482 483 struct ieee80211_sta_tx_tspec { 484 /* timestamp of the first packet in the time slice */ 485 unsigned long time_slice_start; 486 487 u32 admitted_time; /* in usecs, unlike over the air */ 488 u8 tsid; 489 s8 up; /* signed to be able to invalidate with -1 during teardown */ 490 491 /* consumed TX time in microseconds in the time slice */ 492 u32 consumed_tx_time; 493 enum { 494 TX_TSPEC_ACTION_NONE = 0, 495 TX_TSPEC_ACTION_DOWNGRADE, 496 TX_TSPEC_ACTION_STOP_DOWNGRADE, 497 } action; 498 bool downgraded; 499 }; 500 501 /* Advertised TID-to-link mapping info */ 502 struct ieee80211_adv_ttlm_info { 503 /* time in TUs at which the new mapping is established, or 0 if there is 504 * no planned advertised TID-to-link mapping 505 */ 506 u16 switch_time; 507 u32 duration; /* duration of the planned T2L map in TUs */ 508 u16 map; /* map of usable links for all TIDs */ 509 bool active; /* whether the advertised mapping is active or not */ 510 }; 511 512 DECLARE_EWMA(beacon_signal, 4, 4) 513 514 struct ieee80211_if_managed { 515 struct timer_list timer; 516 struct timer_list conn_mon_timer; 517 struct timer_list bcn_mon_timer; 518 struct wiphy_work monitor_work; 519 struct wiphy_work beacon_connection_loss_work; 520 struct wiphy_work csa_connection_drop_work; 521 522 unsigned long beacon_timeout; 523 unsigned long probe_timeout; 524 int probe_send_count; 525 bool nullfunc_failed; 526 u8 connection_loss:1, 527 driver_disconnect:1, 528 reconnect:1, 529 associated:1; 530 531 struct ieee80211_mgd_auth_data *auth_data; 532 struct ieee80211_mgd_assoc_data *assoc_data; 533 534 unsigned long userspace_selectors[BITS_TO_LONGS(128)]; 535 536 bool powersave; /* powersave requested for this iface */ 537 bool broken_ap; /* AP is broken -- turn off powersave */ 538 539 unsigned int flags; 540 541 u16 mcast_seq_last; 542 543 bool status_acked; 544 bool status_received; 545 __le16 status_fc; 546 547 enum { 548 IEEE80211_MFP_DISABLED, 549 IEEE80211_MFP_OPTIONAL, 550 IEEE80211_MFP_REQUIRED 551 } mfp; /* management frame protection */ 552 553 /* 554 * Bitmask of enabled u-apsd queues, 555 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association 556 * to take effect. 557 */ 558 unsigned int uapsd_queues; 559 560 /* 561 * Maximum number of buffered frames AP can deliver during a 562 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar. 563 * Needs a new association to take effect. 564 */ 565 unsigned int uapsd_max_sp_len; 566 567 u8 use_4addr; 568 569 /* 570 * State variables for keeping track of RSSI of the AP currently 571 * connected to and informing driver when RSSI has gone 572 * below/above a certain threshold. 573 */ 574 int rssi_min_thold, rssi_max_thold; 575 576 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ 577 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ 578 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */ 579 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */ 580 struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */ 581 struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */ 582 583 /* TDLS support */ 584 u8 tdls_peer[ETH_ALEN] __aligned(2); 585 struct wiphy_delayed_work tdls_peer_del_work; 586 struct sk_buff *orig_teardown_skb; /* The original teardown skb */ 587 struct sk_buff *teardown_skb; /* A copy to send through the AP */ 588 spinlock_t teardown_lock; /* To lock changing teardown_skb */ 589 bool tdls_wider_bw_prohibited; 590 591 /* WMM-AC TSPEC support */ 592 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS]; 593 /* Use a separate work struct so that we can do something here 594 * while the sdata->work is flushing the queues, for example. 595 * otherwise, in scenarios where we hardly get any traffic out 596 * on the BE queue, but there's a lot of VO traffic, we might 597 * get stuck in a downgraded situation and flush takes forever. 598 */ 599 struct wiphy_delayed_work tx_tspec_wk; 600 601 /* Information elements from the last transmitted (Re)Association 602 * Request frame. 603 */ 604 u8 *assoc_req_ies; 605 size_t assoc_req_ies_len; 606 607 struct wiphy_delayed_work ml_reconf_work; 608 u16 removed_links; 609 610 /* TID-to-link mapping support */ 611 struct wiphy_delayed_work ttlm_work; 612 struct ieee80211_adv_ttlm_info ttlm_info; 613 struct wiphy_work teardown_ttlm_work; 614 615 /* dialog token enumerator for neg TTLM request */ 616 u8 dialog_token_alloc; 617 struct wiphy_delayed_work neg_ttlm_timeout_work; 618 619 /* Locally initiated multi-link reconfiguration */ 620 struct { 621 struct ieee80211_mgd_assoc_data *add_links_data; 622 struct wiphy_delayed_work wk; 623 u16 removed_links; 624 u16 added_links; 625 u8 dialog_token; 626 } reconf; 627 628 /* Support for epcs */ 629 struct { 630 bool enabled; 631 u8 dialog_token; 632 } epcs; 633 }; 634 635 struct ieee80211_if_ibss { 636 struct timer_list timer; 637 struct wiphy_work csa_connection_drop_work; 638 639 unsigned long last_scan_completed; 640 641 u32 basic_rates; 642 643 bool fixed_bssid; 644 bool fixed_channel; 645 bool privacy; 646 647 bool control_port; 648 bool userspace_handles_dfs; 649 650 u8 bssid[ETH_ALEN] __aligned(2); 651 u8 ssid[IEEE80211_MAX_SSID_LEN]; 652 u8 ssid_len, ie_len; 653 u8 *ie; 654 struct cfg80211_chan_def chandef; 655 656 unsigned long ibss_join_req; 657 /* probe response/beacon for IBSS */ 658 struct beacon_data __rcu *presp; 659 660 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ 661 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ 662 663 spinlock_t incomplete_lock; 664 struct list_head incomplete_stations; 665 666 enum { 667 IEEE80211_IBSS_MLME_SEARCH, 668 IEEE80211_IBSS_MLME_JOINED, 669 } state; 670 }; 671 672 /** 673 * struct ieee80211_if_ocb - OCB mode state 674 * 675 * @housekeeping_timer: timer for periodic invocation of a housekeeping task 676 * @wrkq_flags: OCB deferred task action 677 * @incomplete_lock: delayed STA insertion lock 678 * @incomplete_stations: list of STAs waiting for delayed insertion 679 * @joined: indication if the interface is connected to an OCB network 680 */ 681 struct ieee80211_if_ocb { 682 struct timer_list housekeeping_timer; 683 unsigned long wrkq_flags; 684 685 spinlock_t incomplete_lock; 686 struct list_head incomplete_stations; 687 688 bool joined; 689 }; 690 691 /** 692 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface 693 * 694 * these declarations define the interface, which enables 695 * vendor-specific mesh synchronization 696 * 697 * @rx_bcn_presp: beacon/probe response was received 698 * @adjust_tsf: TSF adjustment method 699 */ 700 struct ieee80211_mesh_sync_ops { 701 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, u16 stype, 702 struct ieee80211_mgmt *mgmt, unsigned int len, 703 const struct ieee80211_meshconf_ie *mesh_cfg, 704 struct ieee80211_rx_status *rx_status); 705 706 /* should be called with beacon_data under RCU read lock */ 707 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata, 708 struct beacon_data *beacon); 709 /* add other framework functions here */ 710 }; 711 712 struct mesh_csa_settings { 713 struct rcu_head rcu_head; 714 struct cfg80211_csa_settings settings; 715 }; 716 717 /** 718 * struct mesh_table - mesh hash table 719 * 720 * @known_gates: list of known mesh gates and their mpaths by the station. The 721 * gate's mpath may or may not be resolved and active. 722 * @gates_lock: protects updates to known_gates 723 * @rhead: the rhashtable containing struct mesh_paths, keyed by dest addr 724 * @walk_head: linked list containing all mesh_path objects 725 * @walk_lock: lock protecting walk_head 726 * @entries: number of entries in the table 727 */ 728 struct mesh_table { 729 struct hlist_head known_gates; 730 spinlock_t gates_lock; 731 struct rhashtable rhead; 732 struct hlist_head walk_head; 733 spinlock_t walk_lock; 734 atomic_t entries; /* Up to MAX_MESH_NEIGHBOURS */ 735 }; 736 737 /** 738 * struct mesh_tx_cache - mesh fast xmit header cache 739 * 740 * @rht: hash table containing struct ieee80211_mesh_fast_tx, using skb DA as key 741 * @walk_head: linked list containing all ieee80211_mesh_fast_tx objects 742 * @walk_lock: lock protecting walk_head and rht 743 */ 744 struct mesh_tx_cache { 745 struct rhashtable rht; 746 struct hlist_head walk_head; 747 spinlock_t walk_lock; 748 }; 749 750 struct ieee80211_if_mesh { 751 struct timer_list housekeeping_timer; 752 struct timer_list mesh_path_timer; 753 struct timer_list mesh_path_root_timer; 754 755 unsigned long wrkq_flags; 756 unsigned long mbss_changed[64 / BITS_PER_LONG]; 757 758 bool userspace_handles_dfs; 759 760 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN]; 761 size_t mesh_id_len; 762 /* Active Path Selection Protocol Identifier */ 763 u8 mesh_pp_id; 764 /* Active Path Selection Metric Identifier */ 765 u8 mesh_pm_id; 766 /* Congestion Control Mode Identifier */ 767 u8 mesh_cc_id; 768 /* Synchronization Protocol Identifier */ 769 u8 mesh_sp_id; 770 /* Authentication Protocol Identifier */ 771 u8 mesh_auth_id; 772 /* Local mesh Sequence Number */ 773 u32 sn; 774 /* Last used PREQ ID */ 775 u32 preq_id; 776 atomic_t mpaths; 777 /* Timestamp of last SN update */ 778 unsigned long last_sn_update; 779 /* Time when it's ok to send next PERR */ 780 unsigned long next_perr; 781 /* Timestamp of last PREQ sent */ 782 unsigned long last_preq; 783 struct mesh_rmc *rmc; 784 spinlock_t mesh_preq_queue_lock; 785 struct mesh_preq_queue preq_queue; 786 int preq_queue_len; 787 struct mesh_stats mshstats; 788 struct mesh_config mshcfg; 789 atomic_t estab_plinks; 790 atomic_t mesh_seqnum; 791 bool accepting_plinks; 792 int num_gates; 793 struct beacon_data __rcu *beacon; 794 const u8 *ie; 795 u8 ie_len; 796 enum { 797 IEEE80211_MESH_SEC_NONE = 0x0, 798 IEEE80211_MESH_SEC_AUTHED = 0x1, 799 IEEE80211_MESH_SEC_SECURED = 0x2, 800 } security; 801 bool user_mpm; 802 /* Extensible Synchronization Framework */ 803 const struct ieee80211_mesh_sync_ops *sync_ops; 804 s64 sync_offset_clockdrift_max; 805 spinlock_t sync_offset_lock; 806 /* mesh power save */ 807 enum nl80211_mesh_power_mode nonpeer_pm; 808 int ps_peers_light_sleep; 809 int ps_peers_deep_sleep; 810 struct ps_data ps; 811 /* Channel Switching Support */ 812 struct mesh_csa_settings __rcu *csa; 813 enum { 814 IEEE80211_MESH_CSA_ROLE_NONE, 815 IEEE80211_MESH_CSA_ROLE_INIT, 816 IEEE80211_MESH_CSA_ROLE_REPEATER, 817 } csa_role; 818 u8 chsw_ttl; 819 u16 pre_value; 820 821 /* offset from skb->data while building IE */ 822 int meshconf_offset; 823 824 struct mesh_table mesh_paths; 825 struct mesh_table mpp_paths; /* Store paths for MPP&MAP */ 826 int mesh_paths_generation; 827 int mpp_paths_generation; 828 struct mesh_tx_cache tx_cache; 829 }; 830 831 #ifdef CONFIG_MAC80211_MESH 832 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ 833 do { (msh)->mshstats.name++; } while (0) 834 #else 835 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ 836 do { } while (0) 837 #endif 838 839 /** 840 * enum ieee80211_sub_if_data_flags - virtual interface flags 841 * 842 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets 843 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between 844 * associated stations and deliver multicast frames both 845 * back to wireless media and to the local net stack. 846 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume. 847 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver 848 * @IEEE80211_SDATA_DISCONNECT_HW_RESTART: Disconnect after hardware restart 849 * recovery 850 */ 851 enum ieee80211_sub_if_data_flags { 852 IEEE80211_SDATA_ALLMULTI = BIT(0), 853 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3), 854 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4), 855 IEEE80211_SDATA_IN_DRIVER = BIT(5), 856 IEEE80211_SDATA_DISCONNECT_HW_RESTART = BIT(6), 857 }; 858 859 /** 860 * enum ieee80211_sdata_state_bits - virtual interface state bits 861 * @SDATA_STATE_RUNNING: virtual interface is up & running; this 862 * mirrors netif_running() but is separate for interface type 863 * change handling while the interface is up 864 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel 865 * mode, so queues are stopped 866 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due 867 * to offchannel, reset when offchannel returns 868 */ 869 enum ieee80211_sdata_state_bits { 870 SDATA_STATE_RUNNING, 871 SDATA_STATE_OFFCHANNEL, 872 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, 873 }; 874 875 /** 876 * enum ieee80211_chanctx_mode - channel context configuration mode 877 * 878 * @IEEE80211_CHANCTX_SHARED: channel context may be used by 879 * multiple interfaces 880 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used 881 * only by a single interface. This can be used for example for 882 * non-fixed channel IBSS. 883 */ 884 enum ieee80211_chanctx_mode { 885 IEEE80211_CHANCTX_SHARED, 886 IEEE80211_CHANCTX_EXCLUSIVE 887 }; 888 889 /** 890 * enum ieee80211_chanctx_replace_state - channel context replacement state 891 * 892 * This is used for channel context in-place reservations that require channel 893 * context switch/swap. 894 * 895 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place 896 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced 897 * by a (not yet registered) channel context pointed by %replace_ctx. 898 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context 899 * replaces an existing channel context pointed to by %replace_ctx. 900 */ 901 enum ieee80211_chanctx_replace_state { 902 IEEE80211_CHANCTX_REPLACE_NONE, 903 IEEE80211_CHANCTX_WILL_BE_REPLACED, 904 IEEE80211_CHANCTX_REPLACES_OTHER, 905 }; 906 907 struct ieee80211_chanctx { 908 struct list_head list; 909 struct rcu_head rcu_head; 910 911 struct list_head assigned_links; 912 struct list_head reserved_links; 913 914 enum ieee80211_chanctx_replace_state replace_state; 915 struct ieee80211_chanctx *replace_ctx; 916 917 enum ieee80211_chanctx_mode mode; 918 bool driver_present; 919 920 /* temporary data for search algorithm etc. */ 921 struct ieee80211_chan_req req; 922 923 bool radar_detected; 924 925 /* MUST be last - ends in a flexible-array member. */ 926 struct ieee80211_chanctx_conf conf; 927 }; 928 929 struct mac80211_qos_map { 930 struct cfg80211_qos_map qos_map; 931 struct rcu_head rcu_head; 932 }; 933 934 enum txq_info_flags { 935 IEEE80211_TXQ_STOP, 936 IEEE80211_TXQ_AMPDU, 937 IEEE80211_TXQ_NO_AMSDU, 938 IEEE80211_TXQ_DIRTY, 939 }; 940 941 /** 942 * struct txq_info - per tid queue 943 * 944 * @tin: contains packets split into multiple flows 945 * @def_cvars: codel vars for the @tin's default_flow 946 * @cstats: code statistics for this queue 947 * @frags: used to keep fragments created after dequeue 948 * @schedule_order: used with ieee80211_local->active_txqs 949 * @schedule_round: counter to prevent infinite loops on TXQ scheduling 950 * @flags: TXQ flags from &enum txq_info_flags 951 * @txq: the driver visible part 952 */ 953 struct txq_info { 954 struct fq_tin tin; 955 struct codel_vars def_cvars; 956 struct codel_stats cstats; 957 958 u16 schedule_round; 959 struct list_head schedule_order; 960 961 struct sk_buff_head frags; 962 963 unsigned long flags; 964 965 /* keep last! */ 966 struct ieee80211_txq txq; 967 }; 968 969 struct ieee80211_if_mntr { 970 u32 flags; 971 u8 mu_follow_addr[ETH_ALEN] __aligned(2); 972 973 struct list_head list; 974 }; 975 976 /** 977 * struct ieee80211_if_nan - NAN state 978 * 979 * @conf: current NAN configuration 980 * @func_lock: lock for @func_inst_ids 981 * @function_inst_ids: a bitmap of available instance_id's 982 */ 983 struct ieee80211_if_nan { 984 struct cfg80211_nan_conf conf; 985 986 /* protects function_inst_ids */ 987 spinlock_t func_lock; 988 struct idr function_inst_ids; 989 }; 990 991 struct ieee80211_link_data_managed { 992 u8 bssid[ETH_ALEN] __aligned(2); 993 994 u8 dtim_period; 995 enum ieee80211_smps_mode req_smps, /* requested smps mode */ 996 driver_smps_mode; /* smps mode request */ 997 998 struct ieee80211_conn_settings conn; 999 1000 s16 p2p_noa_index; 1001 1002 bool tdls_chan_switch_prohibited; 1003 1004 bool have_beacon; 1005 bool tracking_signal_avg; 1006 bool disable_wmm_tracking; 1007 bool operating_11g_mode; 1008 1009 struct { 1010 struct wiphy_delayed_work switch_work; 1011 struct cfg80211_chan_def ap_chandef; 1012 struct ieee80211_parsed_tpe tpe; 1013 unsigned long time; 1014 bool waiting_bcn; 1015 bool ignored_same_chan; 1016 bool blocked_tx; 1017 } csa; 1018 1019 struct wiphy_work request_smps_work; 1020 /* used to reconfigure hardware SM PS */ 1021 struct wiphy_work recalc_smps; 1022 1023 bool beacon_crc_valid; 1024 u32 beacon_crc; 1025 struct ewma_beacon_signal ave_beacon_signal; 1026 int last_ave_beacon_signal; 1027 1028 /* 1029 * Number of Beacon frames used in ave_beacon_signal. This can be used 1030 * to avoid generating less reliable cqm events that would be based 1031 * only on couple of received frames. 1032 */ 1033 unsigned int count_beacon_signal; 1034 1035 /* Number of times beacon loss was invoked. */ 1036 unsigned int beacon_loss_count; 1037 1038 /* 1039 * Last Beacon frame signal strength average (ave_beacon_signal / 16) 1040 * that triggered a cqm event. 0 indicates that no event has been 1041 * generated for the current association. 1042 */ 1043 int last_cqm_event_signal; 1044 1045 int wmm_last_param_set; 1046 int mu_edca_last_param_set; 1047 }; 1048 1049 struct ieee80211_link_data_ap { 1050 struct beacon_data __rcu *beacon; 1051 struct probe_resp __rcu *probe_resp; 1052 struct fils_discovery_data __rcu *fils_discovery; 1053 struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp; 1054 struct s1g_short_beacon_data __rcu *s1g_short_beacon; 1055 1056 /* to be used after channel switch. */ 1057 struct cfg80211_beacon_data *next_beacon; 1058 }; 1059 1060 struct ieee80211_link_data { 1061 struct ieee80211_sub_if_data *sdata; 1062 unsigned int link_id; 1063 1064 struct list_head assigned_chanctx_list; /* protected by wiphy mutex */ 1065 struct list_head reserved_chanctx_list; /* protected by wiphy mutex */ 1066 1067 /* multicast keys only */ 1068 struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS + 1069 NUM_DEFAULT_MGMT_KEYS + 1070 NUM_DEFAULT_BEACON_KEYS]; 1071 struct ieee80211_key __rcu *default_multicast_key; 1072 struct ieee80211_key __rcu *default_mgmt_key; 1073 struct ieee80211_key __rcu *default_beacon_key; 1074 1075 1076 bool operating_11g_mode; 1077 1078 struct { 1079 struct wiphy_work finalize_work; 1080 struct ieee80211_chan_req chanreq; 1081 } csa; 1082 1083 struct wiphy_work color_change_finalize_work; 1084 struct wiphy_delayed_work color_collision_detect_work; 1085 u64 color_bitmap; 1086 1087 /* context reservation -- protected with wiphy mutex */ 1088 struct ieee80211_chanctx *reserved_chanctx; 1089 struct ieee80211_chan_req reserved; 1090 bool reserved_radar_required; 1091 bool reserved_ready; 1092 1093 u8 needed_rx_chains; 1094 enum ieee80211_smps_mode smps_mode; 1095 1096 int user_power_level; /* in dBm */ 1097 int ap_power_level; /* in dBm */ 1098 1099 bool radar_required; 1100 struct wiphy_delayed_work dfs_cac_timer_work; 1101 1102 union { 1103 struct ieee80211_link_data_managed mgd; 1104 struct ieee80211_link_data_ap ap; 1105 } u; 1106 1107 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS]; 1108 1109 struct ieee80211_bss_conf *conf; 1110 1111 #ifdef CONFIG_MAC80211_DEBUGFS 1112 struct dentry *debugfs_dir; 1113 #endif 1114 }; 1115 1116 struct ieee80211_sub_if_data { 1117 struct list_head list; 1118 1119 struct wireless_dev wdev; 1120 1121 /* keys */ 1122 struct list_head key_list; 1123 1124 /* count for keys needing tailroom space allocation */ 1125 int crypto_tx_tailroom_needed_cnt; 1126 int crypto_tx_tailroom_pending_dec; 1127 struct wiphy_delayed_work dec_tailroom_needed_wk; 1128 1129 struct net_device *dev; 1130 struct ieee80211_local *local; 1131 1132 unsigned int flags; 1133 1134 unsigned long state; 1135 1136 char name[IFNAMSIZ]; 1137 1138 struct ieee80211_fragment_cache frags; 1139 1140 /* TID bitmap for NoAck policy */ 1141 u16 noack_map; 1142 1143 /* bit field of ACM bits (BIT(802.1D tag)) */ 1144 u8 wmm_acm; 1145 1146 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS]; 1147 struct ieee80211_key __rcu *default_unicast_key; 1148 1149 u16 sequence_number; 1150 u16 mld_mcast_seq; 1151 __be16 control_port_protocol; 1152 bool control_port_no_encrypt; 1153 bool control_port_no_preauth; 1154 bool control_port_over_nl80211; 1155 1156 atomic_t num_tx_queued; 1157 struct mac80211_qos_map __rcu *qos_map; 1158 1159 struct wiphy_work work; 1160 struct sk_buff_head skb_queue; 1161 struct sk_buff_head status_queue; 1162 1163 /* 1164 * AP this belongs to: self in AP mode and 1165 * corresponding AP in VLAN mode, NULL for 1166 * all others (might be needed later in IBSS) 1167 */ 1168 struct ieee80211_if_ap *bss; 1169 1170 /* bitmap of allowed (non-MCS) rate indexes for rate control */ 1171 u32 rc_rateidx_mask[NUM_NL80211_BANDS]; 1172 1173 bool rc_has_mcs_mask[NUM_NL80211_BANDS]; 1174 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN]; 1175 1176 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS]; 1177 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX]; 1178 1179 /* Beacon frame (non-MCS) rate (as a bitmap) */ 1180 u32 beacon_rateidx_mask[NUM_NL80211_BANDS]; 1181 bool beacon_rate_set; 1182 1183 union { 1184 struct ieee80211_if_ap ap; 1185 struct ieee80211_if_vlan vlan; 1186 struct ieee80211_if_managed mgd; 1187 struct ieee80211_if_ibss ibss; 1188 struct ieee80211_if_mesh mesh; 1189 struct ieee80211_if_ocb ocb; 1190 struct ieee80211_if_mntr mntr; 1191 struct ieee80211_if_nan nan; 1192 } u; 1193 1194 struct ieee80211_link_data deflink; 1195 struct ieee80211_link_data __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS]; 1196 1197 /* for ieee80211_set_active_links_async() */ 1198 struct wiphy_work activate_links_work; 1199 u16 desired_active_links; 1200 1201 u16 restart_active_links; 1202 1203 #ifdef CONFIG_MAC80211_DEBUGFS 1204 struct { 1205 struct dentry *subdir_stations; 1206 struct dentry *default_unicast_key; 1207 struct dentry *default_multicast_key; 1208 struct dentry *default_mgmt_key; 1209 struct dentry *default_beacon_key; 1210 } debugfs; 1211 #endif 1212 1213 /* must be last, dynamically sized area in this! */ 1214 struct ieee80211_vif vif; 1215 }; 1216 1217 static inline 1218 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p) 1219 { 1220 return container_of(p, struct ieee80211_sub_if_data, vif); 1221 } 1222 1223 #define sdata_dereference(p, sdata) \ 1224 wiphy_dereference(sdata->local->hw.wiphy, p) 1225 1226 #define for_each_sdata_link(_local, _link) \ 1227 /* outer loop just to define the variables ... */ \ 1228 for (struct ieee80211_sub_if_data *___sdata = NULL; \ 1229 !___sdata; \ 1230 ___sdata = (void *)~0 /* always stop */) \ 1231 list_for_each_entry(___sdata, &(_local)->interfaces, list) \ 1232 if (ieee80211_sdata_running(___sdata)) \ 1233 for (int ___link_id = 0; \ 1234 ___link_id < ARRAY_SIZE(___sdata->link); \ 1235 ___link_id++) \ 1236 if ((_link = wiphy_dereference((_local)->hw.wiphy, \ 1237 ___sdata->link[___link_id]))) 1238 1239 /* 1240 * for_each_sdata_link_rcu() must be used under RCU read lock. 1241 */ 1242 #define for_each_sdata_link_rcu(_local, _link) \ 1243 /* outer loop just to define the variables ... */ \ 1244 for (struct ieee80211_sub_if_data *___sdata = NULL; \ 1245 !___sdata; \ 1246 ___sdata = (void *)~0 /* always stop */) \ 1247 list_for_each_entry_rcu(___sdata, &(_local)->interfaces, list) \ 1248 if (ieee80211_sdata_running(___sdata)) \ 1249 for (int ___link_id = 0; \ 1250 ___link_id < ARRAY_SIZE((___sdata)->link); \ 1251 ___link_id++) \ 1252 if ((_link = rcu_dereference((___sdata)->link[___link_id]))) 1253 1254 #define for_each_link_data(sdata, __link) \ 1255 /* outer loop just to define the variable ... */ \ 1256 for (struct ieee80211_sub_if_data *__sdata = (sdata); __sdata; \ 1257 __sdata = NULL /* always stop */) \ 1258 for (int __link_id = 0; \ 1259 __link_id < ARRAY_SIZE((__sdata)->link); __link_id++) \ 1260 if ((!(__sdata)->vif.valid_links || \ 1261 (__sdata)->vif.valid_links & BIT(__link_id)) && \ 1262 ((__link) = sdata_dereference((__sdata)->link[__link_id], \ 1263 (__sdata)))) 1264 1265 /* 1266 * for_each_link_data_rcu should be used under RCU read lock. 1267 */ 1268 #define for_each_link_data_rcu(sdata, __link) \ 1269 /* outer loop just to define the variable ... */ \ 1270 for (struct ieee80211_sub_if_data *__sdata = (sdata); __sdata; \ 1271 __sdata = NULL /* always stop */) \ 1272 for (int __link_id = 0; \ 1273 __link_id < ARRAY_SIZE((__sdata)->link); __link_id++) \ 1274 if ((!(__sdata)->vif.valid_links || \ 1275 (__sdata)->vif.valid_links & BIT(__link_id)) && \ 1276 ((__link) = rcu_dereference((__sdata)->link[__link_id]))) \ 1277 1278 static inline int 1279 ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems *elems, 1280 struct cfg80211_rnr_elems *rnr_elems, 1281 u8 i) 1282 { 1283 int len = 0; 1284 1285 if (!elems || !elems->cnt || i > elems->cnt) 1286 return 0; 1287 1288 if (i < elems->cnt) { 1289 len = elems->elem[i].len; 1290 if (rnr_elems) { 1291 len += rnr_elems->elem[i].len; 1292 for (i = elems->cnt; i < rnr_elems->cnt; i++) 1293 len += rnr_elems->elem[i].len; 1294 } 1295 return len; 1296 } 1297 1298 /* i == elems->cnt, calculate total length of all MBSSID elements */ 1299 for (i = 0; i < elems->cnt; i++) 1300 len += elems->elem[i].len; 1301 1302 if (rnr_elems) { 1303 for (i = 0; i < rnr_elems->cnt; i++) 1304 len += rnr_elems->elem[i].len; 1305 } 1306 1307 return len; 1308 } 1309 1310 enum { 1311 IEEE80211_RX_MSG = 1, 1312 IEEE80211_TX_STATUS_MSG = 2, 1313 }; 1314 1315 enum queue_stop_reason { 1316 IEEE80211_QUEUE_STOP_REASON_DRIVER, 1317 IEEE80211_QUEUE_STOP_REASON_PS, 1318 IEEE80211_QUEUE_STOP_REASON_CSA, 1319 IEEE80211_QUEUE_STOP_REASON_AGGREGATION, 1320 IEEE80211_QUEUE_STOP_REASON_SUSPEND, 1321 IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 1322 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL, 1323 IEEE80211_QUEUE_STOP_REASON_FLUSH, 1324 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN, 1325 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID, 1326 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE, 1327 1328 IEEE80211_QUEUE_STOP_REASONS, 1329 }; 1330 1331 #ifdef CONFIG_MAC80211_LEDS 1332 struct tpt_led_trigger { 1333 char name[32]; 1334 const struct ieee80211_tpt_blink *blink_table; 1335 unsigned int blink_table_len; 1336 struct timer_list timer; 1337 struct ieee80211_local *local; 1338 unsigned long prev_traffic; 1339 unsigned long tx_bytes, rx_bytes; 1340 unsigned int active, want; 1341 bool running; 1342 }; 1343 #endif 1344 1345 /** 1346 * enum mac80211_scan_flags - currently active scan mode 1347 * 1348 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as 1349 * well be on the operating channel 1350 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to 1351 * determine if we are on the operating channel or not 1352 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating 1353 * channel. This should not interrupt normal traffic. 1354 * @SCAN_COMPLETED: Set for our scan work function when the driver reported 1355 * that the scan completed. 1356 * @SCAN_ABORTED: Set for our scan work function when the driver reported 1357 * a scan complete for an aborted scan. 1358 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being 1359 * cancelled. 1360 * @SCAN_BEACON_WAIT: Set whenever we're passive scanning because of radar/no-IR 1361 * and could send a probe request after receiving a beacon. 1362 * @SCAN_BEACON_DONE: Beacon received, we can now send a probe request 1363 */ 1364 enum mac80211_scan_flags { 1365 SCAN_SW_SCANNING, 1366 SCAN_HW_SCANNING, 1367 SCAN_ONCHANNEL_SCANNING, 1368 SCAN_COMPLETED, 1369 SCAN_ABORTED, 1370 SCAN_HW_CANCELLED, 1371 SCAN_BEACON_WAIT, 1372 SCAN_BEACON_DONE, 1373 }; 1374 1375 /** 1376 * enum mac80211_scan_state - scan state machine states 1377 * 1378 * @SCAN_DECISION: Main entry point to the scan state machine, this state 1379 * determines if we should keep on scanning or switch back to the 1380 * operating channel 1381 * @SCAN_SET_CHANNEL: Set the next channel to be scanned 1382 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses 1383 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to 1384 * send out data 1385 * @SCAN_RESUME: Resume the scan and scan the next channel 1386 * @SCAN_ABORT: Abort the scan and go back to operating channel 1387 */ 1388 enum mac80211_scan_state { 1389 SCAN_DECISION, 1390 SCAN_SET_CHANNEL, 1391 SCAN_SEND_PROBE, 1392 SCAN_SUSPEND, 1393 SCAN_RESUME, 1394 SCAN_ABORT, 1395 }; 1396 1397 DECLARE_STATIC_KEY_FALSE(aql_disable); 1398 1399 struct ieee80211_local { 1400 /* embed the driver visible part. 1401 * don't cast (use the static inlines below), but we keep 1402 * it first anyway so they become a no-op */ 1403 struct ieee80211_hw hw; 1404 1405 struct fq fq; 1406 struct codel_vars *cvars; 1407 struct codel_params cparams; 1408 1409 /* protects active_txqs and txqi->schedule_order */ 1410 spinlock_t active_txq_lock[IEEE80211_NUM_ACS]; 1411 struct list_head active_txqs[IEEE80211_NUM_ACS]; 1412 u16 schedule_round[IEEE80211_NUM_ACS]; 1413 1414 /* serializes ieee80211_handle_wake_tx_queue */ 1415 spinlock_t handle_wake_tx_queue_lock; 1416 1417 u16 airtime_flags; 1418 u32 aql_txq_limit_low[IEEE80211_NUM_ACS]; 1419 u32 aql_txq_limit_high[IEEE80211_NUM_ACS]; 1420 u32 aql_threshold; 1421 atomic_t aql_total_pending_airtime; 1422 atomic_t aql_ac_pending_airtime[IEEE80211_NUM_ACS]; 1423 1424 const struct ieee80211_ops *ops; 1425 1426 /* 1427 * private workqueue to mac80211. mac80211 makes this accessible 1428 * via ieee80211_queue_work() 1429 */ 1430 struct workqueue_struct *workqueue; 1431 1432 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES]; 1433 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS]; 1434 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */ 1435 spinlock_t queue_stop_reason_lock; 1436 1437 int open_count; 1438 int monitors, virt_monitors, tx_mntrs; 1439 /* number of interfaces with corresponding FIF_ flags */ 1440 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll, 1441 fif_probe_req; 1442 bool probe_req_reg; 1443 bool rx_mcast_action_reg; 1444 unsigned int filter_flags; /* FIF_* */ 1445 1446 struct cfg80211_chan_def dflt_chandef; 1447 bool emulate_chanctx; 1448 1449 /* protects the aggregated multicast list and filter calls */ 1450 spinlock_t filter_lock; 1451 1452 /* used for uploading changed mc list */ 1453 struct wiphy_work reconfig_filter; 1454 1455 /* aggregated multicast list */ 1456 struct netdev_hw_addr_list mc_list; 1457 1458 bool tim_in_locked_section; /* see ieee80211_beacon_get() */ 1459 1460 /* 1461 * suspended is true if we finished all the suspend _and_ we have 1462 * not yet come up from resume. This is to be used by mac80211 1463 * to ensure driver sanity during suspend and mac80211's own 1464 * sanity. It can eventually be used for WoW as well. 1465 */ 1466 bool suspended; 1467 1468 /* suspending is true during the whole suspend process */ 1469 bool suspending; 1470 1471 /* 1472 * Resuming is true while suspended, but when we're reprogramming the 1473 * hardware -- at that time it's allowed to use ieee80211_queue_work() 1474 * again even though some other parts of the stack are still suspended 1475 * and we still drop received frames to avoid waking the stack. 1476 */ 1477 bool resuming; 1478 1479 /* 1480 * quiescing is true during the suspend process _only_ to 1481 * ease timer cancelling etc. 1482 */ 1483 bool quiescing; 1484 1485 /* device is started */ 1486 bool started; 1487 1488 /* device is during a HW reconfig */ 1489 bool in_reconfig; 1490 1491 /* reconfiguration failed ... suppress some warnings etc. */ 1492 bool reconfig_failure; 1493 1494 /* wowlan is enabled -- don't reconfig on resume */ 1495 bool wowlan; 1496 1497 struct wiphy_work radar_detected_work; 1498 1499 /* number of RX chains the hardware has */ 1500 u8 rx_chains; 1501 1502 /* bitmap of which sbands were copied */ 1503 u8 sband_allocated; 1504 1505 int tx_headroom; /* required headroom for hardware/radiotap */ 1506 1507 /* Tasklet and skb queue to process calls from IRQ mode. All frames 1508 * added to skb_queue will be processed, but frames in 1509 * skb_queue_unreliable may be dropped if the total length of these 1510 * queues increases over the limit. */ 1511 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128 1512 struct tasklet_struct tasklet; 1513 struct sk_buff_head skb_queue; 1514 struct sk_buff_head skb_queue_unreliable; 1515 1516 spinlock_t rx_path_lock; 1517 1518 /* Station data */ 1519 /* 1520 * The list, hash table and counter are protected 1521 * by the wiphy mutex, reads are done with RCU. 1522 */ 1523 spinlock_t tim_lock; 1524 unsigned long num_sta; 1525 struct list_head sta_list; 1526 struct rhltable sta_hash; 1527 struct rhltable link_sta_hash; 1528 struct timer_list sta_cleanup; 1529 int sta_generation; 1530 1531 struct sk_buff_head pending[IEEE80211_MAX_QUEUES]; 1532 struct tasklet_struct tx_pending_tasklet; 1533 struct tasklet_struct wake_txqs_tasklet; 1534 1535 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES]; 1536 1537 /* number of interfaces with allmulti RX */ 1538 atomic_t iff_allmultis; 1539 1540 struct rate_control_ref *rate_ctrl; 1541 1542 struct arc4_ctx wep_tx_ctx; 1543 struct arc4_ctx wep_rx_ctx; 1544 u32 wep_iv; 1545 1546 /* see iface.c */ 1547 struct list_head interfaces; 1548 struct list_head mon_list; /* only that are IFF_UP */ 1549 struct mutex iflist_mtx; 1550 1551 /* Scanning and BSS list */ 1552 unsigned long scanning; 1553 struct cfg80211_ssid scan_ssid; 1554 struct cfg80211_scan_request *int_scan_req; 1555 struct cfg80211_scan_request __rcu *scan_req; 1556 struct ieee80211_scan_request *hw_scan_req; 1557 struct cfg80211_chan_def scan_chandef; 1558 enum nl80211_band hw_scan_band; 1559 int scan_channel_idx; 1560 int scan_ies_len; 1561 int hw_scan_ies_bufsize; 1562 struct cfg80211_scan_info scan_info; 1563 1564 struct wiphy_work sched_scan_stopped_work; 1565 struct ieee80211_sub_if_data __rcu *sched_scan_sdata; 1566 struct cfg80211_sched_scan_request __rcu *sched_scan_req; 1567 u8 scan_addr[ETH_ALEN]; 1568 1569 unsigned long leave_oper_channel_time; 1570 enum mac80211_scan_state next_scan_state; 1571 struct wiphy_delayed_work scan_work; 1572 struct ieee80211_sub_if_data __rcu *scan_sdata; 1573 1574 /* Temporary remain-on-channel for off-channel operations */ 1575 struct ieee80211_channel *tmp_channel; 1576 1577 /* channel contexts */ 1578 struct list_head chanctx_list; 1579 1580 #ifdef CONFIG_MAC80211_LEDS 1581 struct led_trigger tx_led, rx_led, assoc_led, radio_led; 1582 struct led_trigger tpt_led; 1583 atomic_t tx_led_active, rx_led_active, assoc_led_active; 1584 atomic_t radio_led_active, tpt_led_active; 1585 struct tpt_led_trigger *tpt_led_trigger; 1586 #endif 1587 1588 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS 1589 /* SNMP counters */ 1590 /* dot11CountersTable */ 1591 u32 dot11TransmittedFragmentCount; 1592 u32 dot11MulticastTransmittedFrameCount; 1593 u32 dot11FailedCount; 1594 u32 dot11RetryCount; 1595 u32 dot11MultipleRetryCount; 1596 u32 dot11FrameDuplicateCount; 1597 u32 dot11ReceivedFragmentCount; 1598 u32 dot11MulticastReceivedFrameCount; 1599 u32 dot11TransmittedFrameCount; 1600 1601 /* TX/RX handler statistics */ 1602 unsigned int tx_handlers_drop; 1603 unsigned int tx_handlers_queued; 1604 unsigned int tx_handlers_drop_wep; 1605 unsigned int tx_handlers_drop_not_assoc; 1606 unsigned int tx_handlers_drop_unauth_port; 1607 unsigned int rx_handlers_drop; 1608 unsigned int rx_handlers_queued; 1609 unsigned int rx_handlers_drop_nullfunc; 1610 unsigned int rx_handlers_drop_defrag; 1611 unsigned int tx_expand_skb_head; 1612 unsigned int tx_expand_skb_head_cloned; 1613 unsigned int rx_expand_skb_head_defrag; 1614 unsigned int rx_handlers_fragments; 1615 unsigned int tx_status_drop; 1616 #define I802_DEBUG_INC(c) (c)++ 1617 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */ 1618 #define I802_DEBUG_INC(c) do { } while (0) 1619 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */ 1620 1621 1622 int total_ps_buffered; /* total number of all buffered unicast and 1623 * multicast packets for power saving stations 1624 */ 1625 1626 bool pspolling; 1627 /* 1628 * PS can only be enabled when we have exactly one managed 1629 * interface (and monitors) in PS, this then points there. 1630 */ 1631 struct ieee80211_sub_if_data *ps_sdata; 1632 struct wiphy_work dynamic_ps_enable_work; 1633 struct wiphy_work dynamic_ps_disable_work; 1634 struct timer_list dynamic_ps_timer; 1635 struct notifier_block ifa_notifier; 1636 struct notifier_block ifa6_notifier; 1637 1638 /* 1639 * The dynamic ps timeout configured from user space via WEXT - 1640 * this will override whatever chosen by mac80211 internally. 1641 */ 1642 int dynamic_ps_forced_timeout; 1643 1644 int user_power_level; /* in dBm, for all interfaces */ 1645 1646 struct work_struct restart_work; 1647 1648 #ifdef CONFIG_MAC80211_DEBUGFS 1649 struct local_debugfsdentries { 1650 struct dentry *rcdir; 1651 struct dentry *keys; 1652 } debugfs; 1653 bool force_tx_status; 1654 #endif 1655 1656 /* 1657 * Remain-on-channel support 1658 */ 1659 struct wiphy_delayed_work roc_work; 1660 struct list_head roc_list; 1661 struct wiphy_work hw_roc_start, hw_roc_done; 1662 unsigned long hw_roc_start_time; 1663 u64 roc_cookie_counter; 1664 1665 struct idr ack_status_frames; 1666 spinlock_t ack_status_lock; 1667 1668 struct ieee80211_sub_if_data __rcu *p2p_sdata; 1669 1670 /* virtual monitor interface */ 1671 struct ieee80211_sub_if_data __rcu *monitor_sdata; 1672 struct ieee80211_chan_req monitor_chanreq; 1673 1674 /* extended capabilities provided by mac80211 */ 1675 u8 ext_capa[8]; 1676 1677 bool wbrf_supported; 1678 }; 1679 1680 static inline struct ieee80211_sub_if_data * 1681 IEEE80211_DEV_TO_SUB_IF(const struct net_device *dev) 1682 { 1683 return netdev_priv(dev); 1684 } 1685 1686 static inline struct ieee80211_sub_if_data * 1687 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev) 1688 { 1689 return container_of(wdev, struct ieee80211_sub_if_data, wdev); 1690 } 1691 1692 static inline struct ieee80211_supported_band * 1693 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata) 1694 { 1695 struct ieee80211_local *local = sdata->local; 1696 struct ieee80211_chanctx_conf *chanctx_conf; 1697 enum nl80211_band band; 1698 1699 WARN_ON(ieee80211_vif_is_mld(&sdata->vif)); 1700 1701 rcu_read_lock(); 1702 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 1703 1704 if (!chanctx_conf) { 1705 rcu_read_unlock(); 1706 return NULL; 1707 } 1708 1709 band = chanctx_conf->def.chan->band; 1710 rcu_read_unlock(); 1711 1712 return local->hw.wiphy->bands[band]; 1713 } 1714 1715 static inline struct ieee80211_supported_band * 1716 ieee80211_get_link_sband(struct ieee80211_link_data *link) 1717 { 1718 struct ieee80211_local *local = link->sdata->local; 1719 struct ieee80211_chanctx_conf *chanctx_conf; 1720 enum nl80211_band band; 1721 1722 rcu_read_lock(); 1723 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 1724 if (!chanctx_conf) { 1725 rcu_read_unlock(); 1726 return NULL; 1727 } 1728 1729 band = chanctx_conf->def.chan->band; 1730 rcu_read_unlock(); 1731 1732 return local->hw.wiphy->bands[band]; 1733 } 1734 1735 /* this struct holds the value parsing from channel switch IE */ 1736 struct ieee80211_csa_ie { 1737 struct ieee80211_chan_req chanreq; 1738 u8 mode; 1739 u8 count; 1740 u8 ttl; 1741 u16 pre_value; 1742 u16 reason_code; 1743 u32 max_switch_time; 1744 }; 1745 1746 enum ieee80211_elems_parse_error { 1747 IEEE80211_PARSE_ERR_INVALID_END = BIT(0), 1748 IEEE80211_PARSE_ERR_DUP_ELEM = BIT(1), 1749 IEEE80211_PARSE_ERR_BAD_ELEM_SIZE = BIT(2), 1750 IEEE80211_PARSE_ERR_UNEXPECTED_ELEM = BIT(3), 1751 IEEE80211_PARSE_ERR_DUP_NEST_ML_BASIC = BIT(4), 1752 }; 1753 1754 /* Parsed Information Elements */ 1755 struct ieee802_11_elems { 1756 const u8 *ie_start; 1757 size_t total_len; 1758 u32 crc; 1759 1760 /* pointers to IEs */ 1761 const struct ieee80211_tdls_lnkie *lnk_id; 1762 const struct ieee80211_ch_switch_timing *ch_sw_timing; 1763 const u8 *ext_capab; 1764 const u8 *ssid; 1765 const u8 *supp_rates; 1766 const u8 *ds_params; 1767 const struct ieee80211_tim_ie *tim; 1768 const u8 *rsn; 1769 const u8 *rsnx; 1770 const u8 *erp_info; 1771 const u8 *ext_supp_rates; 1772 const u8 *wmm_info; 1773 const u8 *wmm_param; 1774 const struct ieee80211_ht_cap *ht_cap_elem; 1775 const struct ieee80211_ht_operation *ht_operation; 1776 const struct ieee80211_vht_cap *vht_cap_elem; 1777 const struct ieee80211_vht_operation *vht_operation; 1778 const struct ieee80211_meshconf_ie *mesh_config; 1779 const u8 *he_cap; 1780 const struct ieee80211_he_operation *he_operation; 1781 const struct ieee80211_he_spr *he_spr; 1782 const struct ieee80211_mu_edca_param_set *mu_edca_param_set; 1783 const struct ieee80211_he_6ghz_capa *he_6ghz_capa; 1784 const u8 *uora_element; 1785 const u8 *mesh_id; 1786 const u8 *peering; 1787 const __le16 *awake_window; 1788 const u8 *preq; 1789 const u8 *prep; 1790 const u8 *perr; 1791 const struct ieee80211_rann_ie *rann; 1792 const struct ieee80211_channel_sw_ie *ch_switch_ie; 1793 const struct ieee80211_ext_chansw_ie *ext_chansw_ie; 1794 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie; 1795 const u8 *max_channel_switch_time; 1796 const u8 *country_elem; 1797 const u8 *pwr_constr_elem; 1798 const u8 *cisco_dtpc_elem; 1799 const struct ieee80211_timeout_interval_ie *timeout_int; 1800 const u8 *opmode_notif; 1801 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs; 1802 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie; 1803 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie; 1804 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie; 1805 const struct ieee80211_bssid_index *bssid_index; 1806 u8 max_bssid_indicator; 1807 u8 dtim_count; 1808 u8 dtim_period; 1809 const struct ieee80211_addba_ext_ie *addba_ext_ie; 1810 const struct ieee80211_s1g_cap *s1g_capab; 1811 const struct ieee80211_s1g_oper_ie *s1g_oper; 1812 const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat; 1813 const struct ieee80211_aid_response_ie *aid_resp; 1814 const struct ieee80211_eht_cap_elem *eht_cap; 1815 const struct ieee80211_eht_operation *eht_operation; 1816 const struct ieee80211_multi_link_elem *ml_basic; 1817 const struct ieee80211_multi_link_elem *ml_reconf; 1818 const struct ieee80211_multi_link_elem *ml_epcs; 1819 const struct ieee80211_bandwidth_indication *bandwidth_indication; 1820 const struct ieee80211_ttlm_elem *ttlm[IEEE80211_TTLM_MAX_CNT]; 1821 1822 /* not the order in the psd values is per element, not per chandef */ 1823 struct ieee80211_parsed_tpe tpe; 1824 struct ieee80211_parsed_tpe csa_tpe; 1825 1826 /* length of them, respectively */ 1827 u8 ext_capab_len; 1828 u8 ssid_len; 1829 u8 supp_rates_len; 1830 u8 tim_len; 1831 u8 rsn_len; 1832 u8 rsnx_len; 1833 u8 ext_supp_rates_len; 1834 u8 wmm_info_len; 1835 u8 wmm_param_len; 1836 u8 he_cap_len; 1837 u8 mesh_id_len; 1838 u8 peering_len; 1839 u8 preq_len; 1840 u8 prep_len; 1841 u8 perr_len; 1842 u8 country_elem_len; 1843 u8 bssid_index_len; 1844 u8 eht_cap_len; 1845 1846 /* mult-link element can be de-fragmented and thus u8 is not sufficient */ 1847 size_t ml_basic_len; 1848 size_t ml_reconf_len; 1849 size_t ml_epcs_len; 1850 1851 u8 ttlm_num; 1852 1853 /* 1854 * store the per station profile pointer and length in case that the 1855 * parsing also handled Multi-Link element parsing for a specific link 1856 * ID. 1857 */ 1858 struct ieee80211_mle_per_sta_profile *prof; 1859 size_t sta_prof_len; 1860 1861 /* whether/which parse error occurred while retrieving these elements */ 1862 u8 parse_error; 1863 }; 1864 1865 static inline struct ieee80211_local *hw_to_local( 1866 struct ieee80211_hw *hw) 1867 { 1868 return container_of(hw, struct ieee80211_local, hw); 1869 } 1870 1871 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq) 1872 { 1873 return container_of(txq, struct txq_info, txq); 1874 } 1875 1876 static inline bool txq_has_queue(struct ieee80211_txq *txq) 1877 { 1878 struct txq_info *txqi = to_txq_info(txq); 1879 1880 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets); 1881 } 1882 1883 static inline bool 1884 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status) 1885 { 1886 return status->flag & RX_FLAG_MACTIME; 1887 } 1888 1889 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata); 1890 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata); 1891 1892 void ieee80211_vif_block_queues_csa(struct ieee80211_sub_if_data *sdata); 1893 void ieee80211_vif_unblock_queues_csa(struct ieee80211_sub_if_data *sdata); 1894 1895 /* This function returns the number of multicast stations connected to this 1896 * interface. It returns -1 if that number is not tracked, that is for netdevs 1897 * not in AP or AP_VLAN mode or when using 4addr. 1898 */ 1899 static inline int 1900 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata) 1901 { 1902 if (sdata->vif.type == NL80211_IFTYPE_AP) 1903 return atomic_read(&sdata->u.ap.num_mcast_sta); 1904 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta) 1905 return atomic_read(&sdata->u.vlan.num_mcast_sta); 1906 return -1; 1907 } 1908 1909 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, 1910 struct ieee80211_rx_status *status, 1911 unsigned int mpdu_len, 1912 unsigned int mpdu_offset); 1913 int ieee80211_hw_config(struct ieee80211_local *local, int radio_idx, 1914 u32 changed); 1915 int ieee80211_hw_conf_chan(struct ieee80211_local *local); 1916 void ieee80211_hw_conf_init(struct ieee80211_local *local); 1917 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); 1918 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, 1919 u64 changed); 1920 void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata, 1921 u64 changed); 1922 void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata, 1923 struct ieee80211_link_data *link, 1924 u64 changed); 1925 void ieee80211_configure_filter(struct ieee80211_local *local); 1926 u64 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata); 1927 1928 void ieee80211_handle_queued_frames(struct ieee80211_local *local); 1929 1930 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local); 1931 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 1932 u64 *cookie, gfp_t gfp); 1933 1934 void ieee80211_check_fast_rx(struct sta_info *sta); 1935 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata); 1936 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata); 1937 void ieee80211_clear_fast_rx(struct sta_info *sta); 1938 1939 bool ieee80211_is_our_addr(struct ieee80211_sub_if_data *sdata, 1940 const u8 *addr, int *out_link_id); 1941 1942 /* STA code */ 1943 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata); 1944 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, 1945 struct cfg80211_auth_request *req); 1946 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, 1947 struct cfg80211_assoc_request *req); 1948 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, 1949 struct cfg80211_deauth_request *req); 1950 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, 1951 struct cfg80211_disassoc_request *req); 1952 void ieee80211_send_pspoll(struct ieee80211_local *local, 1953 struct ieee80211_sub_if_data *sdata); 1954 void ieee80211_recalc_ps(struct ieee80211_local *local); 1955 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata); 1956 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata); 1957 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 1958 struct sk_buff *skb); 1959 void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata, 1960 struct sk_buff *skb); 1961 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata); 1962 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata); 1963 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata); 1964 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata, 1965 __le16 fc, bool acked); 1966 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata); 1967 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata); 1968 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata); 1969 void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, 1970 u8 reason, bool tx); 1971 void ieee80211_mgd_setup_link(struct ieee80211_link_data *link); 1972 void ieee80211_mgd_stop_link(struct ieee80211_link_data *link); 1973 void ieee80211_mgd_set_link_qos_params(struct ieee80211_link_data *link); 1974 1975 /* IBSS code */ 1976 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local); 1977 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata); 1978 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata, 1979 const u8 *bssid, const u8 *addr, u32 supp_rates); 1980 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, 1981 struct cfg80211_ibss_params *params); 1982 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata); 1983 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata); 1984 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 1985 struct sk_buff *skb); 1986 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata, 1987 struct cfg80211_csa_settings *csa_settings, 1988 u64 *changed); 1989 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata, 1990 u64 *changed); 1991 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata); 1992 1993 /* OCB code */ 1994 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata); 1995 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata, 1996 const u8 *bssid, const u8 *addr, u32 supp_rates); 1997 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata); 1998 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata, 1999 struct ocb_setup *setup); 2000 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata); 2001 2002 /* mesh code */ 2003 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata); 2004 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 2005 struct sk_buff *skb); 2006 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata, 2007 struct cfg80211_csa_settings *csa_settings, 2008 u64 *changed); 2009 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata, 2010 u64 *changed); 2011 2012 /* scan/BSS handling */ 2013 void ieee80211_scan_work(struct wiphy *wiphy, struct wiphy_work *work); 2014 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata, 2015 const u8 *ssid, u8 ssid_len, 2016 struct ieee80211_channel **channels, 2017 unsigned int n_channels); 2018 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, 2019 struct cfg80211_scan_request *req); 2020 void ieee80211_scan_cancel(struct ieee80211_local *local); 2021 void ieee80211_run_deferred_scan(struct ieee80211_local *local); 2022 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb); 2023 2024 void ieee80211_inform_bss(struct wiphy *wiphy, struct cfg80211_bss *bss, 2025 const struct cfg80211_bss_ies *ies, void *data); 2026 2027 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local); 2028 struct ieee80211_bss * 2029 ieee80211_bss_info_update(struct ieee80211_local *local, 2030 struct ieee80211_rx_status *rx_status, 2031 struct ieee80211_mgmt *mgmt, 2032 size_t len, 2033 struct ieee80211_channel *channel); 2034 void ieee80211_rx_bss_put(struct ieee80211_local *local, 2035 struct ieee80211_bss *bss); 2036 2037 /* scheduled scan handling */ 2038 int 2039 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, 2040 struct cfg80211_sched_scan_request *req); 2041 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, 2042 struct cfg80211_sched_scan_request *req); 2043 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local); 2044 void ieee80211_sched_scan_end(struct ieee80211_local *local); 2045 void ieee80211_sched_scan_stopped_work(struct wiphy *wiphy, 2046 struct wiphy_work *work); 2047 2048 /* off-channel/mgmt-tx */ 2049 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local); 2050 void ieee80211_offchannel_return(struct ieee80211_local *local); 2051 void ieee80211_roc_setup(struct ieee80211_local *local); 2052 void ieee80211_start_next_roc(struct ieee80211_local *local); 2053 void ieee80211_reconfig_roc(struct ieee80211_local *local); 2054 void ieee80211_roc_purge(struct ieee80211_local *local, 2055 struct ieee80211_sub_if_data *sdata); 2056 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev, 2057 struct ieee80211_channel *chan, 2058 unsigned int duration, u64 *cookie); 2059 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, 2060 struct wireless_dev *wdev, u64 cookie); 2061 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 2062 struct cfg80211_mgmt_tx_params *params, u64 *cookie); 2063 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, 2064 struct wireless_dev *wdev, u64 cookie); 2065 2066 /* channel switch handling */ 2067 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work); 2068 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 2069 struct cfg80211_csa_settings *params); 2070 2071 /* color change handling */ 2072 void ieee80211_color_change_finalize_work(struct wiphy *wiphy, 2073 struct wiphy_work *work); 2074 void ieee80211_color_collision_detection_work(struct wiphy *wiphy, 2075 struct wiphy_work *work); 2076 2077 /* interface handling */ 2078 #define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \ 2079 NETIF_F_HW_CSUM | NETIF_F_SG | \ 2080 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE | \ 2081 NETIF_F_HW_TC) 2082 #define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM) 2083 #define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \ 2084 MAC80211_SUPPORTED_FEATURES_RX) 2085 2086 int ieee80211_iface_init(void); 2087 void ieee80211_iface_exit(void); 2088 int ieee80211_if_add(struct ieee80211_local *local, const char *name, 2089 unsigned char name_assign_type, 2090 struct wireless_dev **new_wdev, enum nl80211_iftype type, 2091 struct vif_params *params); 2092 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, 2093 enum nl80211_iftype type); 2094 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata); 2095 void ieee80211_remove_interfaces(struct ieee80211_local *local); 2096 u32 ieee80211_idle_off(struct ieee80211_local *local); 2097 void ieee80211_recalc_idle(struct ieee80211_local *local); 2098 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata, 2099 const int offset); 2100 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up); 2101 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata); 2102 int ieee80211_add_virtual_monitor(struct ieee80211_local *local); 2103 void ieee80211_del_virtual_monitor(struct ieee80211_local *local); 2104 2105 bool __ieee80211_recalc_txpower(struct ieee80211_link_data *link); 2106 void ieee80211_recalc_txpower(struct ieee80211_link_data *link, 2107 bool update_bss); 2108 void ieee80211_recalc_offload(struct ieee80211_local *local); 2109 2110 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata) 2111 { 2112 return test_bit(SDATA_STATE_RUNNING, &sdata->state); 2113 } 2114 2115 /* link handling */ 2116 void ieee80211_link_setup(struct ieee80211_link_data *link); 2117 void ieee80211_link_init(struct ieee80211_sub_if_data *sdata, 2118 int link_id, 2119 struct ieee80211_link_data *link, 2120 struct ieee80211_bss_conf *link_conf); 2121 void ieee80211_link_stop(struct ieee80211_link_data *link); 2122 int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata, 2123 u16 new_links, u16 dormant_links); 2124 static inline void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata) 2125 { 2126 ieee80211_vif_set_links(sdata, 0, 0); 2127 } 2128 2129 void ieee80211_apvlan_link_setup(struct ieee80211_sub_if_data *sdata); 2130 void ieee80211_apvlan_link_clear(struct ieee80211_sub_if_data *sdata); 2131 2132 /* tx handling */ 2133 void ieee80211_clear_tx_pending(struct ieee80211_local *local); 2134 void ieee80211_tx_pending(struct tasklet_struct *t); 2135 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb, 2136 struct net_device *dev); 2137 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, 2138 struct net_device *dev); 2139 netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb, 2140 struct net_device *dev); 2141 void __ieee80211_subif_start_xmit(struct sk_buff *skb, 2142 struct net_device *dev, 2143 u32 info_flags, 2144 u32 ctrl_flags, 2145 u64 *cookie); 2146 struct sk_buff * 2147 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata, 2148 struct sk_buff *skb, u32 info_flags); 2149 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb, 2150 int retry_count, struct ieee80211_tx_status *status); 2151 2152 void ieee80211_check_fast_xmit(struct sta_info *sta); 2153 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local); 2154 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata); 2155 void ieee80211_clear_fast_xmit(struct sta_info *sta); 2156 int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev, 2157 const u8 *buf, size_t len, 2158 const u8 *dest, __be16 proto, bool unencrypted, 2159 int link_id, u64 *cookie); 2160 int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev, 2161 const u8 *buf, size_t len); 2162 void __ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata, 2163 struct sta_info *sta, 2164 struct ieee80211_fast_tx *fast_tx, 2165 struct sk_buff *skb, bool ampdu, 2166 const u8 *da, const u8 *sa); 2167 void ieee80211_aggr_check(struct ieee80211_sub_if_data *sdata, 2168 struct sta_info *sta, struct sk_buff *skb); 2169 2170 /* HT */ 2171 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, 2172 struct ieee80211_sta_ht_cap *ht_cap); 2173 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, 2174 struct ieee80211_supported_band *sband, 2175 const struct ieee80211_ht_cap *ht_cap_ie, 2176 struct link_sta_info *link_sta); 2177 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, 2178 const u8 *da, u16 tid, 2179 u16 initiator, u16 reason_code); 2180 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata, 2181 enum ieee80211_smps_mode smps, const u8 *da, 2182 const u8 *bssid, int link_id); 2183 void ieee80211_add_addbaext(struct sk_buff *skb, 2184 const u8 req_addba_ext_data, 2185 u16 buf_size); 2186 u8 ieee80211_retrieve_addba_ext_data(struct sta_info *sta, 2187 const void *elem_data, ssize_t elem_len, 2188 u16 *buf_size); 2189 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, 2190 u16 initiator, u16 reason, bool stop); 2191 void __ieee80211_start_rx_ba_session(struct sta_info *sta, 2192 u8 dialog_token, u16 timeout, 2193 u16 start_seq_num, u16 ba_policy, u16 tid, 2194 u16 buf_size, bool tx, bool auto_seq, 2195 const u8 addba_ext_data); 2196 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, 2197 enum ieee80211_agg_stop_reason reason); 2198 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, 2199 struct sta_info *sta, 2200 struct ieee80211_mgmt *mgmt, size_t len); 2201 void ieee80211_process_addba_resp(struct ieee80211_local *local, 2202 struct sta_info *sta, 2203 struct ieee80211_mgmt *mgmt, 2204 size_t len); 2205 void ieee80211_process_addba_request(struct ieee80211_local *local, 2206 struct sta_info *sta, 2207 struct ieee80211_mgmt *mgmt, 2208 size_t len); 2209 2210 static inline struct ieee80211_mgmt * 2211 ieee80211_mgmt_ba(struct sk_buff *skb, const u8 *da, 2212 struct ieee80211_sub_if_data *sdata) 2213 { 2214 struct ieee80211_mgmt *mgmt = skb_put_zero(skb, 24); 2215 2216 ether_addr_copy(mgmt->da, da); 2217 ether_addr_copy(mgmt->sa, sdata->vif.addr); 2218 2219 if (sdata->vif.type == NL80211_IFTYPE_AP || 2220 sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 2221 sdata->vif.type == NL80211_IFTYPE_MESH_POINT) 2222 ether_addr_copy(mgmt->bssid, sdata->vif.addr); 2223 else if (sdata->vif.type == NL80211_IFTYPE_STATION) 2224 ether_addr_copy(mgmt->bssid, sdata->vif.cfg.ap_addr); 2225 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) 2226 ether_addr_copy(mgmt->bssid, sdata->u.ibss.bssid); 2227 2228 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 2229 IEEE80211_STYPE_ACTION); 2230 return mgmt; 2231 } 2232 2233 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, 2234 enum ieee80211_agg_stop_reason reason); 2235 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid, 2236 struct tid_ampdu_tx *tid_tx); 2237 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid, 2238 struct tid_ampdu_tx *tid_tx); 2239 void ieee80211_ba_session_work(struct wiphy *wiphy, struct wiphy_work *work); 2240 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid); 2241 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid); 2242 2243 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs); 2244 enum nl80211_smps_mode 2245 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps); 2246 2247 void ieee80211_ht_handle_chanwidth_notif(struct ieee80211_local *local, 2248 struct ieee80211_sub_if_data *sdata, 2249 struct sta_info *sta, 2250 struct link_sta_info *link_sta, 2251 u8 chanwidth, enum nl80211_band band); 2252 2253 /* VHT */ 2254 void 2255 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, 2256 struct ieee80211_supported_band *sband, 2257 const struct ieee80211_vht_cap *vht_cap_ie, 2258 const struct ieee80211_vht_cap *vht_cap_ie2, 2259 struct link_sta_info *link_sta); 2260 enum ieee80211_sta_rx_bandwidth 2261 _ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta, 2262 struct cfg80211_chan_def *chandef); 2263 static inline enum ieee80211_sta_rx_bandwidth 2264 ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta) 2265 { 2266 return _ieee80211_sta_cap_rx_bw(link_sta, NULL); 2267 } 2268 enum ieee80211_sta_rx_bandwidth 2269 _ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta, 2270 struct cfg80211_chan_def *chandef); 2271 static inline enum ieee80211_sta_rx_bandwidth 2272 ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta) 2273 { 2274 return _ieee80211_sta_cur_vht_bw(link_sta, NULL); 2275 } 2276 void ieee80211_sta_init_nss(struct link_sta_info *link_sta); 2277 enum nl80211_chan_width 2278 ieee80211_sta_cap_chan_bw(struct link_sta_info *link_sta); 2279 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata, 2280 struct ieee80211_link_data *link, 2281 struct ieee80211_mgmt *mgmt); 2282 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, 2283 struct link_sta_info *sta, 2284 u8 opmode, enum nl80211_band band); 2285 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, 2286 struct link_sta_info *sta, 2287 u8 opmode, enum nl80211_band band); 2288 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata, 2289 struct ieee80211_sta_vht_cap *vht_cap); 2290 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap, 2291 u16 vht_mask[NL80211_VHT_NSS_MAX]); 2292 enum nl80211_chan_width 2293 ieee80211_sta_rx_bw_to_chan_width(struct link_sta_info *sta); 2294 2295 /* HE */ 2296 void 2297 ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata, 2298 struct ieee80211_supported_band *sband, 2299 const u8 *he_cap_ie, u8 he_cap_len, 2300 const struct ieee80211_he_6ghz_capa *he_6ghz_capa, 2301 struct link_sta_info *link_sta); 2302 void 2303 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif, 2304 const struct ieee80211_he_spr *he_spr_ie_elem); 2305 2306 void 2307 ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif, 2308 const struct ieee80211_he_operation *he_op_ie_elem); 2309 2310 /* S1G */ 2311 void ieee80211_s1g_sta_rate_init(struct sta_info *sta); 2312 bool ieee80211_s1g_is_twt_setup(struct sk_buff *skb); 2313 void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata, 2314 struct sk_buff *skb); 2315 void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata, 2316 struct sk_buff *skb); 2317 void ieee80211_s1g_cap_to_sta_s1g_cap(struct ieee80211_sub_if_data *sdata, 2318 const struct ieee80211_s1g_cap *s1g_cap_ie, 2319 struct link_sta_info *link_sta); 2320 2321 /* Spectrum management */ 2322 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, 2323 struct ieee80211_mgmt *mgmt, 2324 size_t len); 2325 /** 2326 * ieee80211_parse_ch_switch_ie - parses channel switch IEs 2327 * @sdata: the sdata of the interface which has received the frame 2328 * @elems: parsed 802.11 elements received with the frame 2329 * @current_band: indicates the current band 2330 * @vht_cap_info: VHT capabilities of the transmitter 2331 * @conn: contains information about own capabilities and restrictions 2332 * to decide which channel switch announcements can be accepted 2333 * @bssid: the currently connected bssid (for reporting) 2334 * @unprot_action: whether the frame was an unprotected frame or not, 2335 * used for reporting 2336 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl. 2337 * All of them will be filled with if success only. 2338 * Return: 0 on success, <0 on error and >0 if there is nothing to parse. 2339 */ 2340 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata, 2341 struct ieee802_11_elems *elems, 2342 enum nl80211_band current_band, 2343 u32 vht_cap_info, 2344 struct ieee80211_conn_settings *conn, 2345 u8 *bssid, bool unprot_action, 2346 struct ieee80211_csa_ie *csa_ie); 2347 2348 /* Suspend/resume and hw reconfiguration */ 2349 int ieee80211_reconfig(struct ieee80211_local *local); 2350 void ieee80211_stop_device(struct ieee80211_local *local, bool suspend); 2351 2352 int __ieee80211_suspend(struct ieee80211_hw *hw, 2353 struct cfg80211_wowlan *wowlan); 2354 2355 static inline int __ieee80211_resume(struct ieee80211_hw *hw) 2356 { 2357 struct ieee80211_local *local = hw_to_local(hw); 2358 2359 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) && 2360 !test_bit(SCAN_COMPLETED, &local->scanning), 2361 "%s: resume with hardware scan still in progress\n", 2362 wiphy_name(hw->wiphy)); 2363 2364 return ieee80211_reconfig(hw_to_local(hw)); 2365 } 2366 2367 /* utility functions/constants */ 2368 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */ 2369 const char *ieee80211_conn_mode_str(enum ieee80211_conn_mode mode); 2370 enum ieee80211_conn_bw_limit 2371 ieee80211_min_bw_limit_from_chandef(struct cfg80211_chan_def *chandef); 2372 int ieee80211_frame_duration(enum nl80211_band band, size_t len, 2373 int rate, int erp, int short_preamble); 2374 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, 2375 struct ieee80211_tx_queue_params *qparam, 2376 int ac); 2377 void ieee80211_clear_tpe(struct ieee80211_parsed_tpe *tpe); 2378 void ieee80211_set_wmm_default(struct ieee80211_link_data *link, 2379 bool bss_notify, bool enable_qos); 2380 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, 2381 struct sta_info *sta, struct sk_buff *skb); 2382 2383 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, 2384 struct sk_buff *skb, int tid, int link_id, 2385 enum nl80211_band band); 2386 2387 /* sta_out needs to be checked for ERR_PTR() before using */ 2388 int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata, 2389 struct sk_buff *skb, 2390 struct sta_info **sta_out); 2391 2392 static inline void 2393 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, 2394 struct sk_buff *skb, int tid, 2395 enum nl80211_band band) 2396 { 2397 rcu_read_lock(); 2398 __ieee80211_tx_skb_tid_band(sdata, skb, tid, -1, band); 2399 rcu_read_unlock(); 2400 } 2401 2402 void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata, 2403 struct sk_buff *skb, int tid, int link_id); 2404 2405 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, 2406 struct sk_buff *skb) 2407 { 2408 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */ 2409 ieee80211_tx_skb_tid(sdata, skb, 7, -1); 2410 } 2411 2412 /** 2413 * struct ieee80211_elems_parse_params - element parsing parameters 2414 * @mode: connection mode for parsing 2415 * @start: pointer to the elements 2416 * @len: length of the elements 2417 * @action: %true if the elements came from an action frame 2418 * @filter: bitmap of element IDs to filter out while calculating 2419 * the element CRC 2420 * @crc: CRC starting value 2421 * @bss: the BSS to parse this as, for multi-BSSID cases this can 2422 * represent a non-transmitting BSS in which case the data 2423 * for that non-transmitting BSS is returned 2424 * @link_id: the link ID to parse elements for, if a STA profile 2425 * is present in the multi-link element, or -1 to ignore; 2426 * note that the code currently assumes parsing an association 2427 * (or re-association) response frame if this is given 2428 * @from_ap: frame is received from an AP (currently used only 2429 * for EHT capabilities parsing) 2430 */ 2431 struct ieee80211_elems_parse_params { 2432 enum ieee80211_conn_mode mode; 2433 const u8 *start; 2434 size_t len; 2435 bool action; 2436 u64 filter; 2437 u32 crc; 2438 struct cfg80211_bss *bss; 2439 int link_id; 2440 bool from_ap; 2441 }; 2442 2443 struct ieee802_11_elems * 2444 ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params); 2445 2446 static inline struct ieee802_11_elems * 2447 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, 2448 u64 filter, u32 crc, 2449 struct cfg80211_bss *bss) 2450 { 2451 struct ieee80211_elems_parse_params params = { 2452 .mode = IEEE80211_CONN_MODE_HIGHEST, 2453 .start = start, 2454 .len = len, 2455 .action = action, 2456 .filter = filter, 2457 .crc = crc, 2458 .bss = bss, 2459 .link_id = -1, 2460 }; 2461 2462 return ieee802_11_parse_elems_full(¶ms); 2463 } 2464 2465 static inline struct ieee802_11_elems * 2466 ieee802_11_parse_elems(const u8 *start, size_t len, bool action, 2467 struct cfg80211_bss *bss) 2468 { 2469 return ieee802_11_parse_elems_crc(start, len, action, 0, 0, bss); 2470 } 2471 2472 extern const int ieee802_1d_to_ac[8]; 2473 2474 static inline int ieee80211_ac_from_tid(int tid) 2475 { 2476 return ieee802_1d_to_ac[tid & 7]; 2477 } 2478 2479 void ieee80211_dynamic_ps_enable_work(struct wiphy *wiphy, 2480 struct wiphy_work *work); 2481 void ieee80211_dynamic_ps_disable_work(struct wiphy *wiphy, 2482 struct wiphy_work *work); 2483 void ieee80211_dynamic_ps_timer(struct timer_list *t); 2484 void ieee80211_send_nullfunc(struct ieee80211_local *local, 2485 struct ieee80211_sub_if_data *sdata, 2486 bool powersave); 2487 void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local, 2488 struct ieee80211_sub_if_data *sdata); 2489 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata, 2490 struct ieee80211_hdr *hdr, bool ack, u16 tx_time); 2491 unsigned int 2492 ieee80211_get_vif_queues(struct ieee80211_local *local, 2493 struct ieee80211_sub_if_data *sdata); 2494 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, 2495 unsigned long queues, 2496 enum queue_stop_reason reason, 2497 bool refcounted); 2498 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, 2499 unsigned long queues, 2500 enum queue_stop_reason reason, 2501 bool refcounted); 2502 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, 2503 enum queue_stop_reason reason, 2504 bool refcounted); 2505 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, 2506 enum queue_stop_reason reason, 2507 bool refcounted); 2508 static inline void 2509 ieee80211_stop_vif_queues(struct ieee80211_local *local, 2510 struct ieee80211_sub_if_data *sdata, 2511 enum queue_stop_reason reason) 2512 { 2513 ieee80211_stop_queues_by_reason(&local->hw, 2514 ieee80211_get_vif_queues(local, sdata), 2515 reason, true); 2516 } 2517 2518 static inline void 2519 ieee80211_wake_vif_queues(struct ieee80211_local *local, 2520 struct ieee80211_sub_if_data *sdata, 2521 enum queue_stop_reason reason) 2522 { 2523 ieee80211_wake_queues_by_reason(&local->hw, 2524 ieee80211_get_vif_queues(local, sdata), 2525 reason, true); 2526 } 2527 static inline void 2528 ieee80211_stop_vif_queues_norefcount(struct ieee80211_local *local, 2529 struct ieee80211_sub_if_data *sdata, 2530 enum queue_stop_reason reason) 2531 { 2532 ieee80211_stop_queues_by_reason(&local->hw, 2533 ieee80211_get_vif_queues(local, sdata), 2534 reason, false); 2535 } 2536 static inline void 2537 ieee80211_wake_vif_queues_norefcount(struct ieee80211_local *local, 2538 struct ieee80211_sub_if_data *sdata, 2539 enum queue_stop_reason reason) 2540 { 2541 ieee80211_wake_queues_by_reason(&local->hw, 2542 ieee80211_get_vif_queues(local, sdata), 2543 reason, false); 2544 } 2545 void ieee80211_add_pending_skb(struct ieee80211_local *local, 2546 struct sk_buff *skb); 2547 void ieee80211_add_pending_skbs(struct ieee80211_local *local, 2548 struct sk_buff_head *skbs); 2549 void ieee80211_flush_queues(struct ieee80211_local *local, 2550 struct ieee80211_sub_if_data *sdata, bool drop); 2551 void __ieee80211_flush_queues(struct ieee80211_local *local, 2552 struct ieee80211_sub_if_data *sdata, 2553 unsigned int queues, bool drop); 2554 2555 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local) 2556 { 2557 /* 2558 * It's unsafe to try to do any work during reconfigure flow. 2559 * When the flow ends the work will be requeued. 2560 */ 2561 if (local->in_reconfig) 2562 return false; 2563 2564 /* 2565 * If quiescing is set, we are racing with __ieee80211_suspend. 2566 * __ieee80211_suspend flushes the workers after setting quiescing, 2567 * and we check quiescing / suspended before enqueuing new workers. 2568 * We should abort the worker to avoid the races below. 2569 */ 2570 if (local->quiescing) 2571 return false; 2572 2573 /* 2574 * We might already be suspended if the following scenario occurs: 2575 * __ieee80211_suspend Control path 2576 * 2577 * if (local->quiescing) 2578 * return; 2579 * local->quiescing = true; 2580 * flush_workqueue(); 2581 * queue_work(...); 2582 * local->suspended = true; 2583 * local->quiescing = false; 2584 * worker starts running... 2585 */ 2586 if (local->suspended) 2587 return false; 2588 2589 return true; 2590 } 2591 2592 int ieee80211_txq_setup_flows(struct ieee80211_local *local); 2593 void ieee80211_txq_set_params(struct ieee80211_local *local, int radio_idx); 2594 void ieee80211_txq_teardown_flows(struct ieee80211_local *local); 2595 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata, 2596 struct sta_info *sta, 2597 struct txq_info *txq, int tid); 2598 void ieee80211_txq_purge(struct ieee80211_local *local, 2599 struct txq_info *txqi); 2600 void ieee80211_purge_sta_txqs(struct sta_info *sta); 2601 void ieee80211_txq_remove_vlan(struct ieee80211_local *local, 2602 struct ieee80211_sub_if_data *sdata); 2603 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 2604 struct txq_info *txqi); 2605 void ieee80211_wake_txqs(struct tasklet_struct *t); 2606 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, 2607 u16 transaction, u16 auth_alg, u16 status, 2608 const u8 *extra, size_t extra_len, const u8 *bssid, 2609 const u8 *da, const u8 *key, u8 key_len, u8 key_idx, 2610 u32 tx_flags); 2611 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, 2612 const u8 *da, const u8 *bssid, 2613 u16 stype, u16 reason, 2614 bool send_frame, u8 *frame_buf); 2615 2616 enum { 2617 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0), 2618 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1), 2619 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2), 2620 }; 2621 2622 int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer, 2623 size_t buffer_len, 2624 struct ieee80211_scan_ies *ie_desc, 2625 const u8 *ie, size_t ie_len, 2626 u8 bands_used, u32 *rate_masks, 2627 struct cfg80211_chan_def *chandef, 2628 u32 flags); 2629 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, 2630 const u8 *src, const u8 *dst, 2631 u32 ratemask, 2632 struct ieee80211_channel *chan, 2633 const u8 *ssid, size_t ssid_len, 2634 const u8 *ie, size_t ie_len, 2635 u32 flags); 2636 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, 2637 struct ieee802_11_elems *elems, 2638 enum nl80211_band band, u32 *basic_rates); 2639 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2640 struct ieee80211_link_data *link, 2641 enum ieee80211_smps_mode smps_mode); 2642 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata, 2643 struct ieee80211_link_data *link); 2644 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata, 2645 int link_id); 2646 2647 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset); 2648 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 2649 u16 cap); 2650 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 2651 const struct cfg80211_chan_def *chandef, 2652 u16 prot_mode, bool rifs_mode); 2653 void ieee80211_ie_build_wide_bw_cs(u8 *pos, 2654 const struct cfg80211_chan_def *chandef); 2655 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2656 u32 cap); 2657 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2658 const struct cfg80211_chan_def *chandef); 2659 u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata); 2660 u8 *ieee80211_ie_build_he_oper(u8 *pos, const struct cfg80211_chan_def *chandef); 2661 u8 *ieee80211_ie_build_eht_oper(u8 *pos, const struct cfg80211_chan_def *chandef, 2662 const struct ieee80211_sta_eht_cap *eht_cap); 2663 int ieee80211_parse_bitrates(enum nl80211_chan_width width, 2664 const struct ieee80211_supported_band *sband, 2665 const u8 *srates, int srates_len, u32 *rates); 2666 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo); 2667 void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata, 2668 struct ieee80211_sta_s1g_cap *caps, 2669 struct sk_buff *skb); 2670 void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata, 2671 struct sk_buff *skb); 2672 2673 /* element building in SKBs */ 2674 int ieee80211_put_srates_elem(struct sk_buff *skb, 2675 const struct ieee80211_supported_band *sband, 2676 u32 basic_rates, u32 masked_rates, 2677 u8 element_id); 2678 int ieee80211_put_he_cap(struct sk_buff *skb, 2679 struct ieee80211_sub_if_data *sdata, 2680 const struct ieee80211_supported_band *sband, 2681 const struct ieee80211_conn_settings *conn); 2682 int ieee80211_put_he_6ghz_cap(struct sk_buff *skb, 2683 struct ieee80211_sub_if_data *sdata, 2684 enum ieee80211_smps_mode smps_mode); 2685 int ieee80211_put_eht_cap(struct sk_buff *skb, 2686 struct ieee80211_sub_if_data *sdata, 2687 const struct ieee80211_supported_band *sband, 2688 const struct ieee80211_conn_settings *conn); 2689 int ieee80211_put_reg_conn(struct sk_buff *skb, 2690 enum ieee80211_channel_flags flags); 2691 2692 /* channel management */ 2693 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper, 2694 struct cfg80211_chan_def *chandef); 2695 bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info, 2696 const struct ieee80211_vht_operation *oper, 2697 const struct ieee80211_ht_operation *htop, 2698 struct cfg80211_chan_def *chandef); 2699 void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation_info *info, 2700 struct cfg80211_chan_def *chandef); 2701 bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_local *local, 2702 const struct ieee80211_he_operation *he_oper, 2703 const struct ieee80211_eht_operation *eht_oper, 2704 struct cfg80211_chan_def *chandef); 2705 bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper, 2706 struct cfg80211_chan_def *chandef); 2707 void ieee80211_chandef_downgrade(struct cfg80211_chan_def *chandef, 2708 struct ieee80211_conn_settings *conn); 2709 static inline void 2710 ieee80211_chanreq_downgrade(struct ieee80211_chan_req *chanreq, 2711 struct ieee80211_conn_settings *conn) 2712 { 2713 ieee80211_chandef_downgrade(&chanreq->oper, conn); 2714 if (WARN_ON(!conn)) 2715 return; 2716 if (conn->mode < IEEE80211_CONN_MODE_EHT) 2717 chanreq->ap.chan = NULL; 2718 } 2719 2720 bool ieee80211_chanreq_identical(const struct ieee80211_chan_req *a, 2721 const struct ieee80211_chan_req *b); 2722 2723 int __must_check 2724 _ieee80211_link_use_channel(struct ieee80211_link_data *link, 2725 const struct ieee80211_chan_req *req, 2726 enum ieee80211_chanctx_mode mode, 2727 bool assign_on_failure); 2728 2729 static inline int __must_check 2730 ieee80211_link_use_channel(struct ieee80211_link_data *link, 2731 const struct ieee80211_chan_req *req, 2732 enum ieee80211_chanctx_mode mode) 2733 { 2734 return _ieee80211_link_use_channel(link, req, mode, false); 2735 } 2736 2737 int __must_check 2738 ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link, 2739 const struct ieee80211_chan_req *req, 2740 enum ieee80211_chanctx_mode mode, 2741 bool radar_required); 2742 int __must_check 2743 ieee80211_link_use_reserved_context(struct ieee80211_link_data *link); 2744 void ieee80211_link_unreserve_chanctx(struct ieee80211_link_data *link); 2745 2746 int __must_check 2747 ieee80211_link_change_chanreq(struct ieee80211_link_data *link, 2748 const struct ieee80211_chan_req *req, 2749 u64 *changed); 2750 void __ieee80211_link_release_channel(struct ieee80211_link_data *link, 2751 bool skip_idle_recalc); 2752 void ieee80211_link_release_channel(struct ieee80211_link_data *link); 2753 void ieee80211_link_vlan_copy_chanctx(struct ieee80211_link_data *link); 2754 void ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link, 2755 bool clear); 2756 int ieee80211_chanctx_refcount(struct ieee80211_local *local, 2757 struct ieee80211_chanctx *ctx); 2758 2759 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local, 2760 struct ieee80211_chanctx *chanctx); 2761 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local, 2762 struct ieee80211_chanctx *ctx, 2763 struct ieee80211_link_data *rsvd_for, 2764 bool check_reserved); 2765 bool ieee80211_is_radar_required(struct ieee80211_local *local, 2766 struct cfg80211_scan_request *req); 2767 bool ieee80211_is_radio_idx_in_scan_req(struct wiphy *wiphy, 2768 struct cfg80211_scan_request *scan_req, 2769 int radio_idx); 2770 2771 void ieee80211_dfs_cac_timer_work(struct wiphy *wiphy, struct wiphy_work *work); 2772 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local, 2773 struct ieee80211_chanctx *chanctx); 2774 void ieee80211_dfs_radar_detected_work(struct wiphy *wiphy, 2775 struct wiphy_work *work); 2776 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, 2777 struct cfg80211_csa_settings *csa_settings); 2778 void ieee80211_recalc_sb_count(struct ieee80211_sub_if_data *sdata, u64 tsf); 2779 void ieee80211_recalc_dtim(struct ieee80211_sub_if_data *sdata, u64 tsf); 2780 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, 2781 const struct cfg80211_chan_def *chandef, 2782 enum ieee80211_chanctx_mode chanmode, 2783 u8 radar_detect, int radio_idx); 2784 int ieee80211_max_num_channels(struct ieee80211_local *local, int radio_idx); 2785 u32 ieee80211_get_radio_mask(struct wiphy *wiphy, struct net_device *dev); 2786 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local, 2787 struct ieee80211_chanctx *ctx); 2788 2789 /* TDLS */ 2790 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 2791 const u8 *peer, int link_id, 2792 u8 action_code, u8 dialog_token, u16 status_code, 2793 u32 peer_capability, bool initiator, 2794 const u8 *extra_ies, size_t extra_ies_len); 2795 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 2796 const u8 *peer, enum nl80211_tdls_operation oper); 2797 void ieee80211_tdls_peer_del_work(struct wiphy *wiphy, struct wiphy_work *wk); 2798 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev, 2799 const u8 *addr, u8 oper_class, 2800 struct cfg80211_chan_def *chandef); 2801 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy, 2802 struct net_device *dev, 2803 const u8 *addr); 2804 void ieee80211_teardown_tdls_peers(struct ieee80211_link_data *link); 2805 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata, 2806 const u8 *peer, u16 reason); 2807 void 2808 ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata, 2809 struct sk_buff *skb); 2810 2811 2812 const char *ieee80211_get_reason_code_string(u16 reason_code); 2813 u16 ieee80211_encode_usf(int val); 2814 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, 2815 enum nl80211_iftype type); 2816 2817 extern const struct ethtool_ops ieee80211_ethtool_ops; 2818 2819 u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw, 2820 struct ieee80211_vif *vif, 2821 struct ieee80211_sta *pubsta, 2822 int len, bool ampdu); 2823 #ifdef CONFIG_MAC80211_NOINLINE 2824 #define debug_noinline noinline 2825 #else 2826 #define debug_noinline 2827 #endif 2828 2829 void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache); 2830 void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache); 2831 2832 u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata); 2833 2834 void 2835 ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata, 2836 struct ieee80211_supported_band *sband, 2837 const u8 *he_cap_ie, u8 he_cap_len, 2838 const struct ieee80211_eht_cap_elem *eht_cap_ie_elem, 2839 u8 eht_cap_len, 2840 struct link_sta_info *link_sta); 2841 void ieee80211_process_neg_ttlm_req(struct ieee80211_sub_if_data *sdata, 2842 struct ieee80211_mgmt *mgmt, size_t len); 2843 void ieee80211_process_neg_ttlm_res(struct ieee80211_sub_if_data *sdata, 2844 struct ieee80211_mgmt *mgmt, size_t len); 2845 int ieee80211_req_neg_ttlm(struct ieee80211_sub_if_data *sdata, 2846 struct cfg80211_ttlm_params *params); 2847 void ieee80211_process_ttlm_teardown(struct ieee80211_sub_if_data *sdata); 2848 2849 void ieee80211_check_wbrf_support(struct ieee80211_local *local); 2850 void ieee80211_add_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef); 2851 void ieee80211_remove_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef); 2852 int ieee80211_mgd_set_epcs(struct ieee80211_sub_if_data *sdata, bool enable); 2853 void ieee80211_process_epcs_ena_resp(struct ieee80211_sub_if_data *sdata, 2854 struct ieee80211_mgmt *mgmt, size_t len); 2855 void ieee80211_process_epcs_teardown(struct ieee80211_sub_if_data *sdata, 2856 struct ieee80211_mgmt *mgmt, size_t len); 2857 2858 int ieee80211_mgd_assoc_ml_reconf(struct ieee80211_sub_if_data *sdata, 2859 struct cfg80211_ml_reconf_req *req); 2860 2861 void ieee80211_process_ml_reconf_resp(struct ieee80211_sub_if_data *sdata, 2862 struct ieee80211_mgmt *mgmt, size_t len); 2863 void ieee80211_stop_mbssid(struct ieee80211_sub_if_data *sdata); 2864 2865 #if IS_ENABLED(CONFIG_MAC80211_KUNIT_TEST) 2866 #define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym) EXPORT_SYMBOL_IF_KUNIT(sym) 2867 #define VISIBLE_IF_MAC80211_KUNIT 2868 ieee80211_rx_result 2869 ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx); 2870 int ieee80211_calc_chandef_subchan_offset(const struct cfg80211_chan_def *ap, 2871 u8 n_partial_subchans); 2872 void ieee80211_rearrange_tpe_psd(struct ieee80211_parsed_tpe_psd *psd, 2873 const struct cfg80211_chan_def *ap, 2874 const struct cfg80211_chan_def *used); 2875 struct ieee802_11_elems * 2876 ieee80211_determine_chan_mode(struct ieee80211_sub_if_data *sdata, 2877 struct ieee80211_conn_settings *conn, 2878 struct cfg80211_bss *cbss, int link_id, 2879 struct ieee80211_chan_req *chanreq, 2880 struct cfg80211_chan_def *ap_chandef, 2881 unsigned long *userspace_selectors); 2882 #else 2883 #define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym) 2884 #define VISIBLE_IF_MAC80211_KUNIT static 2885 #endif 2886 2887 #endif /* IEEE80211_I_H */ 2888