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 /* 90 * Current mac80211 implementation supports a maximum of 1600 AIDS 91 * for S1G interfaces. With regards to an S1G TIM, this covers 25 blocks 92 * as each block is 64 AIDs. 93 */ 94 #define IEEE80211_MAX_SUPPORTED_S1G_AID 1600 95 #define IEEE80211_MAX_SUPPORTED_S1G_TIM_BLOCKS 25 96 97 enum ieee80211_status_data { 98 IEEE80211_STATUS_TYPE_MASK = 0x00f, 99 IEEE80211_STATUS_TYPE_INVALID = 0, 100 IEEE80211_STATUS_TYPE_SMPS = 1, 101 IEEE80211_STATUS_TYPE_NEG_TTLM = 2, 102 IEEE80211_STATUS_SUBDATA_MASK = 0x1ff0, 103 }; 104 105 static inline bool 106 ieee80211_sta_keep_active(struct sta_info *sta, u8 ac) 107 { 108 /* Keep a station's queues on the active list for deficit accounting 109 * purposes if it was active or queued during the last 100ms. 110 */ 111 return time_before_eq(jiffies, sta->airtime[ac].last_active + HZ / 10); 112 } 113 114 struct ieee80211_bss { 115 u32 device_ts_beacon, device_ts_presp; 116 117 bool wmm_used; 118 bool uapsd_supported; 119 120 #define IEEE80211_MAX_SUPP_RATES 32 121 u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; 122 size_t supp_rates_len; 123 struct ieee80211_rate *beacon_rate; 124 125 u32 vht_cap_info; 126 127 /* 128 * During association, we save an ERP value from a probe response so 129 * that we can feed ERP info to the driver when handling the 130 * association completes. these fields probably won't be up-to-date 131 * otherwise, you probably don't want to use them. 132 */ 133 bool has_erp_value; 134 u8 erp_value; 135 136 /* Keep track of the corruption of the last beacon/probe response. */ 137 u8 corrupt_data; 138 139 /* Keep track of what bits of information we have valid info for. */ 140 u8 valid_data; 141 }; 142 143 /** 144 * enum ieee80211_bss_corrupt_data_flags - BSS data corruption flags 145 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted 146 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted 147 * 148 * These are bss flags that are attached to a bss in the 149 * @corrupt_data field of &struct ieee80211_bss. 150 */ 151 enum ieee80211_bss_corrupt_data_flags { 152 IEEE80211_BSS_CORRUPT_BEACON = BIT(0), 153 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1) 154 }; 155 156 /** 157 * enum ieee80211_bss_valid_data_flags - BSS valid data flags 158 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE 159 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE 160 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE 161 * 162 * These are bss flags that are attached to a bss in the 163 * @valid_data field of &struct ieee80211_bss. They show which parts 164 * of the data structure were received as a result of an un-corrupted 165 * beacon/probe response. 166 */ 167 enum ieee80211_bss_valid_data_flags { 168 IEEE80211_BSS_VALID_WMM = BIT(1), 169 IEEE80211_BSS_VALID_RATES = BIT(2), 170 IEEE80211_BSS_VALID_ERP = BIT(3) 171 }; 172 173 typedef unsigned __bitwise ieee80211_tx_result; 174 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u) 175 #define TX_DROP ((__force ieee80211_tx_result) 1u) 176 #define TX_QUEUED ((__force ieee80211_tx_result) 2u) 177 178 #define IEEE80211_TX_UNICAST BIT(1) 179 #define IEEE80211_TX_PS_BUFFERED BIT(2) 180 181 struct ieee80211_tx_data { 182 struct sk_buff *skb; 183 struct sk_buff_head skbs; 184 struct ieee80211_local *local; 185 struct ieee80211_sub_if_data *sdata; 186 struct sta_info *sta; 187 struct ieee80211_key *key; 188 struct ieee80211_tx_rate rate; 189 190 unsigned int flags; 191 }; 192 193 /** 194 * enum ieee80211_packet_rx_flags - packet RX flags 195 * @IEEE80211_RX_AMSDU: a-MSDU packet 196 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed 197 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering 198 * 199 * These are per-frame flags that are attached to a frame in the 200 * @rx_flags field of &struct ieee80211_rx_status. 201 */ 202 enum ieee80211_packet_rx_flags { 203 IEEE80211_RX_AMSDU = BIT(3), 204 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4), 205 IEEE80211_RX_DEFERRED_RELEASE = BIT(5), 206 }; 207 208 /** 209 * enum ieee80211_rx_flags - RX data flags 210 * 211 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported 212 * to cfg80211_report_obss_beacon(). 213 * 214 * These flags are used across handling multiple interfaces 215 * for a single frame. 216 */ 217 enum ieee80211_rx_flags { 218 IEEE80211_RX_BEACON_REPORTED = BIT(0), 219 }; 220 221 struct ieee80211_rx_data { 222 struct list_head *list; 223 struct sk_buff *skb; 224 struct ieee80211_local *local; 225 struct ieee80211_sub_if_data *sdata; 226 struct ieee80211_link_data *link; 227 struct sta_info *sta; 228 struct link_sta_info *link_sta; 229 struct ieee80211_key *key; 230 231 unsigned int flags; 232 233 /* 234 * Index into sequence numbers array, 0..16 235 * since the last (16) is used for non-QoS, 236 * will be 16 on non-QoS frames. 237 */ 238 int seqno_idx; 239 240 /* 241 * Index into the security IV/PN arrays, 0..16 242 * since the last (16) is used for CCMP-encrypted 243 * management frames, will be set to 16 on mgmt 244 * frames and 0 on non-QoS frames. 245 */ 246 int security_idx; 247 248 int link_id; 249 250 union { 251 struct { 252 u32 iv32; 253 u16 iv16; 254 } tkip; 255 struct { 256 u8 pn[IEEE80211_CCMP_PN_LEN]; 257 } ccm_gcm; 258 }; 259 }; 260 261 struct ieee80211_csa_settings { 262 const u16 *counter_offsets_beacon; 263 const u16 *counter_offsets_presp; 264 265 int n_counter_offsets_beacon; 266 int n_counter_offsets_presp; 267 268 u8 count; 269 }; 270 271 struct ieee80211_color_change_settings { 272 u16 counter_offset_beacon; 273 u16 counter_offset_presp; 274 u8 count; 275 }; 276 277 struct beacon_data { 278 u8 *head, *tail; 279 int head_len, tail_len; 280 struct ieee80211_meshconf_ie *meshconf; 281 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM]; 282 u8 cntdwn_current_counter; 283 struct cfg80211_mbssid_elems *mbssid_ies; 284 struct cfg80211_rnr_elems *rnr_ies; 285 struct rcu_head rcu_head; 286 }; 287 288 struct probe_resp { 289 struct rcu_head rcu_head; 290 int len; 291 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM]; 292 u8 data[]; 293 }; 294 295 struct fils_discovery_data { 296 struct rcu_head rcu_head; 297 int len; 298 u8 data[]; 299 }; 300 301 struct unsol_bcast_probe_resp_data { 302 struct rcu_head rcu_head; 303 int len; 304 u8 data[]; 305 }; 306 307 struct s1g_short_beacon_data { 308 struct rcu_head rcu_head; 309 u8 *short_head; 310 u8 *short_tail; 311 int short_head_len; 312 int short_tail_len; 313 }; 314 315 struct ps_data { 316 /* yes, this looks ugly, but guarantees that we can later use 317 * bitmap_empty :) 318 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */ 319 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)] 320 __aligned(__alignof__(unsigned long)); 321 struct sk_buff_head bc_buf; 322 atomic_t num_sta_ps; /* number of stations in PS mode */ 323 int dtim_count; 324 bool dtim_bc_mc; 325 int sb_count; /* num short beacons til next long beacon */ 326 }; 327 328 struct ieee80211_if_ap { 329 struct list_head vlans; /* write-protected with RTNL and local->mtx */ 330 331 struct ps_data ps; 332 atomic_t num_mcast_sta; /* number of stations receiving multicast */ 333 334 bool multicast_to_unicast; 335 bool active; 336 }; 337 338 struct ieee80211_if_vlan { 339 struct list_head list; /* write-protected with RTNL and local->mtx */ 340 341 /* used for all tx if the VLAN is configured to 4-addr mode */ 342 struct sta_info __rcu *sta; 343 atomic_t num_mcast_sta; /* number of stations receiving multicast */ 344 }; 345 346 struct mesh_stats { 347 __u32 fwded_mcast; /* Mesh forwarded multicast frames */ 348 __u32 fwded_unicast; /* Mesh forwarded unicast frames */ 349 __u32 fwded_frames; /* Mesh total forwarded frames */ 350 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/ 351 __u32 dropped_frames_no_route; /* Not transmitted, no route found */ 352 }; 353 354 #define PREQ_Q_F_START 0x1 355 #define PREQ_Q_F_REFRESH 0x2 356 struct mesh_preq_queue { 357 struct list_head list; 358 u8 dst[ETH_ALEN]; 359 u8 flags; 360 }; 361 362 struct ieee80211_roc_work { 363 struct list_head list; 364 365 struct ieee80211_sub_if_data *sdata; 366 367 struct ieee80211_channel *chan; 368 369 bool started, abort, hw_begun, notified; 370 bool on_channel; 371 372 unsigned long start_time; 373 374 u32 duration, req_duration; 375 struct sk_buff *frame; 376 u64 cookie, mgmt_tx_cookie; 377 enum ieee80211_roc_type type; 378 }; 379 380 /* flags used in struct ieee80211_if_managed.flags */ 381 enum ieee80211_sta_flags { 382 IEEE80211_STA_CONNECTION_POLL = BIT(1), 383 IEEE80211_STA_CONTROL_PORT = BIT(2), 384 IEEE80211_STA_MFP_ENABLED = BIT(6), 385 IEEE80211_STA_UAPSD_ENABLED = BIT(7), 386 IEEE80211_STA_NULLFUNC_ACKED = BIT(8), 387 IEEE80211_STA_ENABLE_RRM = BIT(15), 388 }; 389 390 enum ieee80211_conn_mode { 391 IEEE80211_CONN_MODE_S1G, 392 IEEE80211_CONN_MODE_LEGACY, 393 IEEE80211_CONN_MODE_HT, 394 IEEE80211_CONN_MODE_VHT, 395 IEEE80211_CONN_MODE_HE, 396 IEEE80211_CONN_MODE_EHT, 397 }; 398 399 #define IEEE80211_CONN_MODE_HIGHEST IEEE80211_CONN_MODE_EHT 400 401 enum ieee80211_conn_bw_limit { 402 IEEE80211_CONN_BW_LIMIT_20, 403 IEEE80211_CONN_BW_LIMIT_40, 404 IEEE80211_CONN_BW_LIMIT_80, 405 IEEE80211_CONN_BW_LIMIT_160, /* also 80+80 */ 406 IEEE80211_CONN_BW_LIMIT_320, 407 }; 408 409 struct ieee80211_conn_settings { 410 enum ieee80211_conn_mode mode; 411 enum ieee80211_conn_bw_limit bw_limit; 412 }; 413 414 extern const struct ieee80211_conn_settings ieee80211_conn_settings_unlimited; 415 416 struct ieee80211_mgd_auth_data { 417 struct cfg80211_bss *bss; 418 unsigned long timeout; 419 int tries; 420 u16 algorithm, expected_transaction; 421 422 unsigned long userspace_selectors[BITS_TO_LONGS(128)]; 423 424 u8 key[WLAN_KEY_LEN_WEP104]; 425 u8 key_len, key_idx; 426 bool done, waiting; 427 bool peer_confirmed; 428 bool timeout_started; 429 int link_id; 430 431 u8 ap_addr[ETH_ALEN] __aligned(2); 432 433 u16 sae_trans, sae_status; 434 size_t data_len; 435 u8 data[]; 436 }; 437 438 struct ieee80211_mgd_assoc_data { 439 struct { 440 struct cfg80211_bss *bss; 441 442 u8 addr[ETH_ALEN] __aligned(2); 443 444 u8 ap_ht_param; 445 446 struct ieee80211_vht_cap ap_vht_cap; 447 448 size_t elems_len; 449 u8 *elems; /* pointing to inside ie[] below */ 450 451 struct ieee80211_conn_settings conn; 452 453 u16 status; 454 } link[IEEE80211_MLD_MAX_NUM_LINKS]; 455 456 u8 ap_addr[ETH_ALEN] __aligned(2); 457 458 /* this is for a workaround, so we use it only for non-MLO */ 459 const u8 *supp_rates; 460 u8 supp_rates_len; 461 462 unsigned long timeout; 463 int tries; 464 465 u8 prev_ap_addr[ETH_ALEN]; 466 u8 ssid[IEEE80211_MAX_SSID_LEN]; 467 u8 ssid_len; 468 bool wmm, uapsd; 469 bool need_beacon; 470 bool synced; 471 bool timeout_started; 472 bool comeback; /* whether the AP has requested association comeback */ 473 bool s1g; 474 bool spp_amsdu; 475 476 s8 assoc_link_id; 477 478 __le16 ext_mld_capa_ops; 479 480 u8 fils_nonces[2 * FILS_NONCE_LEN]; 481 u8 fils_kek[FILS_MAX_KEK_LEN]; 482 size_t fils_kek_len; 483 484 size_t ie_len; 485 u8 *ie_pos; /* used to fill ie[] with link[].elems */ 486 u8 ie[]; 487 }; 488 489 struct ieee80211_sta_tx_tspec { 490 /* timestamp of the first packet in the time slice */ 491 unsigned long time_slice_start; 492 493 u32 admitted_time; /* in usecs, unlike over the air */ 494 u8 tsid; 495 s8 up; /* signed to be able to invalidate with -1 during teardown */ 496 497 /* consumed TX time in microseconds in the time slice */ 498 u32 consumed_tx_time; 499 enum { 500 TX_TSPEC_ACTION_NONE = 0, 501 TX_TSPEC_ACTION_DOWNGRADE, 502 TX_TSPEC_ACTION_STOP_DOWNGRADE, 503 } action; 504 bool downgraded; 505 }; 506 507 /* Advertised TID-to-link mapping info */ 508 struct ieee80211_adv_ttlm_info { 509 /* time in TUs at which the new mapping is established, or 0 if there is 510 * no planned advertised TID-to-link mapping 511 */ 512 u16 switch_time; 513 u32 duration; /* duration of the planned T2L map in TUs */ 514 u16 map; /* map of usable links for all TIDs */ 515 bool active; /* whether the advertised mapping is active or not */ 516 }; 517 518 DECLARE_EWMA(beacon_signal, 4, 4) 519 520 struct ieee80211_if_managed { 521 struct timer_list timer; 522 struct timer_list conn_mon_timer; 523 struct timer_list bcn_mon_timer; 524 struct wiphy_work monitor_work; 525 struct wiphy_work beacon_connection_loss_work; 526 struct wiphy_work csa_connection_drop_work; 527 528 unsigned long beacon_timeout; 529 unsigned long probe_timeout; 530 int probe_send_count; 531 bool nullfunc_failed; 532 u8 connection_loss:1, 533 driver_disconnect:1, 534 reconnect:1, 535 associated:1; 536 537 struct ieee80211_mgd_auth_data *auth_data; 538 struct ieee80211_mgd_assoc_data *assoc_data; 539 540 unsigned long userspace_selectors[BITS_TO_LONGS(128)]; 541 542 bool powersave; /* powersave requested for this iface */ 543 bool broken_ap; /* AP is broken -- turn off powersave */ 544 545 unsigned int flags; 546 547 u16 mcast_seq_last; 548 549 bool status_acked; 550 bool status_received; 551 __le16 status_fc; 552 553 enum { 554 IEEE80211_MFP_DISABLED, 555 IEEE80211_MFP_OPTIONAL, 556 IEEE80211_MFP_REQUIRED 557 } mfp; /* management frame protection */ 558 559 /* 560 * Bitmask of enabled u-apsd queues, 561 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association 562 * to take effect. 563 */ 564 unsigned int uapsd_queues; 565 566 /* 567 * Maximum number of buffered frames AP can deliver during a 568 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar. 569 * Needs a new association to take effect. 570 */ 571 unsigned int uapsd_max_sp_len; 572 573 u8 use_4addr; 574 575 /* 576 * State variables for keeping track of RSSI of the AP currently 577 * connected to and informing driver when RSSI has gone 578 * below/above a certain threshold. 579 */ 580 int rssi_min_thold, rssi_max_thold; 581 582 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ 583 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ 584 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */ 585 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */ 586 struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */ 587 struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */ 588 589 /* TDLS support */ 590 u8 tdls_peer[ETH_ALEN] __aligned(2); 591 struct wiphy_delayed_work tdls_peer_del_work; 592 struct sk_buff *orig_teardown_skb; /* The original teardown skb */ 593 struct sk_buff *teardown_skb; /* A copy to send through the AP */ 594 spinlock_t teardown_lock; /* To lock changing teardown_skb */ 595 bool tdls_wider_bw_prohibited; 596 597 /* WMM-AC TSPEC support */ 598 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS]; 599 /* Use a separate work struct so that we can do something here 600 * while the sdata->work is flushing the queues, for example. 601 * otherwise, in scenarios where we hardly get any traffic out 602 * on the BE queue, but there's a lot of VO traffic, we might 603 * get stuck in a downgraded situation and flush takes forever. 604 */ 605 struct wiphy_delayed_work tx_tspec_wk; 606 607 /* Information elements from the last transmitted (Re)Association 608 * Request frame. 609 */ 610 u8 *assoc_req_ies; 611 size_t assoc_req_ies_len; 612 613 struct wiphy_hrtimer_work ml_reconf_work; 614 u16 removed_links; 615 616 /* TID-to-link mapping support */ 617 struct wiphy_hrtimer_work ttlm_work; 618 struct ieee80211_adv_ttlm_info ttlm_info; 619 struct wiphy_work teardown_ttlm_work; 620 621 /* dialog token enumerator for neg TTLM request */ 622 u8 dialog_token_alloc; 623 struct wiphy_delayed_work neg_ttlm_timeout_work; 624 625 /* Locally initiated multi-link reconfiguration */ 626 struct { 627 struct ieee80211_mgd_assoc_data *add_links_data; 628 struct wiphy_delayed_work wk; 629 u16 removed_links; 630 u16 added_links; 631 u8 dialog_token; 632 } reconf; 633 634 /* Support for epcs */ 635 struct { 636 bool enabled; 637 u8 dialog_token; 638 } epcs; 639 }; 640 641 struct ieee80211_if_ibss { 642 struct timer_list timer; 643 struct wiphy_work csa_connection_drop_work; 644 645 unsigned long last_scan_completed; 646 647 u32 basic_rates; 648 649 bool fixed_bssid; 650 bool fixed_channel; 651 bool privacy; 652 653 bool control_port; 654 bool userspace_handles_dfs; 655 656 u8 bssid[ETH_ALEN] __aligned(2); 657 u8 ssid[IEEE80211_MAX_SSID_LEN]; 658 u8 ssid_len, ie_len; 659 u8 *ie; 660 struct cfg80211_chan_def chandef; 661 662 unsigned long ibss_join_req; 663 /* probe response/beacon for IBSS */ 664 struct beacon_data __rcu *presp; 665 666 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ 667 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ 668 669 spinlock_t incomplete_lock; 670 struct list_head incomplete_stations; 671 672 enum { 673 IEEE80211_IBSS_MLME_SEARCH, 674 IEEE80211_IBSS_MLME_JOINED, 675 } state; 676 }; 677 678 /** 679 * struct ieee80211_if_ocb - OCB mode state 680 * 681 * @housekeeping_timer: timer for periodic invocation of a housekeeping task 682 * @wrkq_flags: OCB deferred task action 683 * @incomplete_lock: delayed STA insertion lock 684 * @incomplete_stations: list of STAs waiting for delayed insertion 685 * @joined: indication if the interface is connected to an OCB network 686 */ 687 struct ieee80211_if_ocb { 688 struct timer_list housekeeping_timer; 689 unsigned long wrkq_flags; 690 691 spinlock_t incomplete_lock; 692 struct list_head incomplete_stations; 693 694 bool joined; 695 }; 696 697 /** 698 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface 699 * 700 * these declarations define the interface, which enables 701 * vendor-specific mesh synchronization 702 * 703 * @rx_bcn_presp: beacon/probe response was received 704 * @adjust_tsf: TSF adjustment method 705 */ 706 struct ieee80211_mesh_sync_ops { 707 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, u16 stype, 708 struct ieee80211_mgmt *mgmt, unsigned int len, 709 const struct ieee80211_meshconf_ie *mesh_cfg, 710 struct ieee80211_rx_status *rx_status); 711 712 /* should be called with beacon_data under RCU read lock */ 713 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata, 714 struct beacon_data *beacon); 715 /* add other framework functions here */ 716 }; 717 718 struct mesh_csa_settings { 719 struct rcu_head rcu_head; 720 struct cfg80211_csa_settings settings; 721 }; 722 723 /** 724 * struct mesh_table - mesh hash table 725 * 726 * @known_gates: list of known mesh gates and their mpaths by the station. The 727 * gate's mpath may or may not be resolved and active. 728 * @gates_lock: protects updates to known_gates 729 * @rhead: the rhashtable containing struct mesh_paths, keyed by dest addr 730 * @walk_head: linked list containing all mesh_path objects 731 * @walk_lock: lock protecting walk_head 732 * @entries: number of entries in the table 733 */ 734 struct mesh_table { 735 struct hlist_head known_gates; 736 spinlock_t gates_lock; 737 struct rhashtable rhead; 738 struct hlist_head walk_head; 739 spinlock_t walk_lock; 740 atomic_t entries; /* Up to MAX_MESH_NEIGHBOURS */ 741 }; 742 743 /** 744 * struct mesh_tx_cache - mesh fast xmit header cache 745 * 746 * @rht: hash table containing struct ieee80211_mesh_fast_tx, using skb DA as key 747 * @walk_head: linked list containing all ieee80211_mesh_fast_tx objects 748 * @walk_lock: lock protecting walk_head and rht 749 */ 750 struct mesh_tx_cache { 751 struct rhashtable rht; 752 struct hlist_head walk_head; 753 spinlock_t walk_lock; 754 }; 755 756 struct ieee80211_if_mesh { 757 struct timer_list housekeeping_timer; 758 struct timer_list mesh_path_timer; 759 struct timer_list mesh_path_root_timer; 760 761 unsigned long wrkq_flags; 762 unsigned long mbss_changed[64 / BITS_PER_LONG]; 763 764 bool userspace_handles_dfs; 765 766 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN]; 767 size_t mesh_id_len; 768 /* Active Path Selection Protocol Identifier */ 769 u8 mesh_pp_id; 770 /* Active Path Selection Metric Identifier */ 771 u8 mesh_pm_id; 772 /* Congestion Control Mode Identifier */ 773 u8 mesh_cc_id; 774 /* Synchronization Protocol Identifier */ 775 u8 mesh_sp_id; 776 /* Authentication Protocol Identifier */ 777 u8 mesh_auth_id; 778 /* Local mesh Sequence Number */ 779 u32 sn; 780 /* Last used PREQ ID */ 781 u32 preq_id; 782 atomic_t mpaths; 783 /* Timestamp of last SN update */ 784 unsigned long last_sn_update; 785 /* Time when it's ok to send next PERR */ 786 unsigned long next_perr; 787 /* Timestamp of last PREQ sent */ 788 unsigned long last_preq; 789 struct mesh_rmc *rmc; 790 spinlock_t mesh_preq_queue_lock; 791 struct mesh_preq_queue preq_queue; 792 int preq_queue_len; 793 struct mesh_stats mshstats; 794 struct mesh_config mshcfg; 795 atomic_t estab_plinks; 796 atomic_t mesh_seqnum; 797 bool accepting_plinks; 798 int num_gates; 799 struct beacon_data __rcu *beacon; 800 const u8 *ie; 801 u8 ie_len; 802 enum { 803 IEEE80211_MESH_SEC_NONE = 0x0, 804 IEEE80211_MESH_SEC_AUTHED = 0x1, 805 IEEE80211_MESH_SEC_SECURED = 0x2, 806 } security; 807 bool user_mpm; 808 /* Extensible Synchronization Framework */ 809 const struct ieee80211_mesh_sync_ops *sync_ops; 810 s64 sync_offset_clockdrift_max; 811 spinlock_t sync_offset_lock; 812 /* mesh power save */ 813 enum nl80211_mesh_power_mode nonpeer_pm; 814 int ps_peers_light_sleep; 815 int ps_peers_deep_sleep; 816 struct ps_data ps; 817 /* Channel Switching Support */ 818 struct mesh_csa_settings __rcu *csa; 819 enum { 820 IEEE80211_MESH_CSA_ROLE_NONE, 821 IEEE80211_MESH_CSA_ROLE_INIT, 822 IEEE80211_MESH_CSA_ROLE_REPEATER, 823 } csa_role; 824 u8 chsw_ttl; 825 u16 pre_value; 826 827 /* offset from skb->data while building IE */ 828 int meshconf_offset; 829 830 struct mesh_table mesh_paths; 831 struct mesh_table mpp_paths; /* Store paths for MPP&MAP */ 832 int mesh_paths_generation; 833 int mpp_paths_generation; 834 struct mesh_tx_cache tx_cache; 835 }; 836 837 #ifdef CONFIG_MAC80211_MESH 838 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ 839 do { (msh)->mshstats.name++; } while (0) 840 #else 841 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ 842 do { } while (0) 843 #endif 844 845 /** 846 * enum ieee80211_sub_if_data_flags - virtual interface flags 847 * 848 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets 849 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between 850 * associated stations and deliver multicast frames both 851 * back to wireless media and to the local net stack. 852 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume. 853 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver 854 * @IEEE80211_SDATA_DISCONNECT_HW_RESTART: Disconnect after hardware restart 855 * recovery 856 */ 857 enum ieee80211_sub_if_data_flags { 858 IEEE80211_SDATA_ALLMULTI = BIT(0), 859 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3), 860 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4), 861 IEEE80211_SDATA_IN_DRIVER = BIT(5), 862 IEEE80211_SDATA_DISCONNECT_HW_RESTART = BIT(6), 863 }; 864 865 /** 866 * enum ieee80211_sdata_state_bits - virtual interface state bits 867 * @SDATA_STATE_RUNNING: virtual interface is up & running; this 868 * mirrors netif_running() but is separate for interface type 869 * change handling while the interface is up 870 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel 871 * mode, so queues are stopped 872 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due 873 * to offchannel, reset when offchannel returns 874 */ 875 enum ieee80211_sdata_state_bits { 876 SDATA_STATE_RUNNING, 877 SDATA_STATE_OFFCHANNEL, 878 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, 879 }; 880 881 /** 882 * enum ieee80211_chanctx_mode - channel context configuration mode 883 * 884 * @IEEE80211_CHANCTX_SHARED: channel context may be used by 885 * multiple interfaces 886 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used 887 * only by a single interface. This can be used for example for 888 * non-fixed channel IBSS. 889 */ 890 enum ieee80211_chanctx_mode { 891 IEEE80211_CHANCTX_SHARED, 892 IEEE80211_CHANCTX_EXCLUSIVE 893 }; 894 895 /** 896 * enum ieee80211_chanctx_replace_state - channel context replacement state 897 * 898 * This is used for channel context in-place reservations that require channel 899 * context switch/swap. 900 * 901 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place 902 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced 903 * by a (not yet registered) channel context pointed by %replace_ctx. 904 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context 905 * replaces an existing channel context pointed to by %replace_ctx. 906 */ 907 enum ieee80211_chanctx_replace_state { 908 IEEE80211_CHANCTX_REPLACE_NONE, 909 IEEE80211_CHANCTX_WILL_BE_REPLACED, 910 IEEE80211_CHANCTX_REPLACES_OTHER, 911 }; 912 913 struct ieee80211_chanctx { 914 struct list_head list; 915 struct rcu_head rcu_head; 916 917 enum ieee80211_chanctx_replace_state replace_state; 918 struct ieee80211_chanctx *replace_ctx; 919 920 enum ieee80211_chanctx_mode mode; 921 bool driver_present; 922 923 /* temporary data for search algorithm etc. */ 924 struct ieee80211_chan_req req; 925 926 bool radar_detected; 927 928 /* MUST be last - ends in a flexible-array member. */ 929 struct ieee80211_chanctx_conf conf; 930 }; 931 932 struct mac80211_qos_map { 933 struct cfg80211_qos_map qos_map; 934 struct rcu_head rcu_head; 935 }; 936 937 enum txq_info_flags { 938 IEEE80211_TXQ_STOP, 939 IEEE80211_TXQ_AMPDU, 940 IEEE80211_TXQ_NO_AMSDU, 941 IEEE80211_TXQ_DIRTY, 942 }; 943 944 /** 945 * struct txq_info - per tid queue 946 * 947 * @tin: contains packets split into multiple flows 948 * @def_cvars: codel vars for the @tin's default_flow 949 * @cstats: code statistics for this queue 950 * @frags: used to keep fragments created after dequeue 951 * @schedule_order: used with ieee80211_local->active_txqs 952 * @schedule_round: counter to prevent infinite loops on TXQ scheduling 953 * @flags: TXQ flags from &enum txq_info_flags 954 * @txq: the driver visible part 955 */ 956 struct txq_info { 957 struct fq_tin tin; 958 struct codel_vars def_cvars; 959 struct codel_stats cstats; 960 961 u16 schedule_round; 962 struct list_head schedule_order; 963 964 struct sk_buff_head frags; 965 966 unsigned long flags; 967 968 /* keep last! */ 969 struct ieee80211_txq txq; 970 }; 971 972 struct ieee80211_if_mntr { 973 u32 flags; 974 u8 mu_follow_addr[ETH_ALEN] __aligned(2); 975 976 struct list_head list; 977 }; 978 979 /** 980 * struct ieee80211_if_nan - NAN state 981 * 982 * @conf: current NAN configuration 983 * @started: true iff NAN is started 984 * @func_lock: lock for @func_inst_ids 985 * @function_inst_ids: a bitmap of available instance_id's 986 */ 987 struct ieee80211_if_nan { 988 struct cfg80211_nan_conf conf; 989 bool started; 990 991 /* protects function_inst_ids */ 992 spinlock_t func_lock; 993 struct idr function_inst_ids; 994 }; 995 996 struct ieee80211_link_data_managed { 997 u8 bssid[ETH_ALEN] __aligned(2); 998 999 u8 dtim_period; 1000 enum ieee80211_smps_mode req_smps, /* requested smps mode */ 1001 driver_smps_mode; /* smps mode request */ 1002 1003 struct ieee80211_conn_settings conn; 1004 1005 s16 p2p_noa_index; 1006 1007 bool tdls_chan_switch_prohibited; 1008 1009 bool have_beacon; 1010 bool tracking_signal_avg; 1011 bool disable_wmm_tracking; 1012 bool operating_11g_mode; 1013 1014 struct { 1015 struct wiphy_hrtimer_work switch_work; 1016 struct cfg80211_chan_def ap_chandef; 1017 struct ieee80211_parsed_tpe tpe; 1018 ktime_t time; 1019 bool waiting_bcn; 1020 bool ignored_same_chan; 1021 bool blocked_tx; 1022 } csa; 1023 1024 struct wiphy_work request_smps_work; 1025 /* used to reconfigure hardware SM PS */ 1026 struct wiphy_work recalc_smps; 1027 1028 bool beacon_crc_valid; 1029 u32 beacon_crc; 1030 struct ewma_beacon_signal ave_beacon_signal; 1031 int last_ave_beacon_signal; 1032 1033 /* 1034 * Number of Beacon frames used in ave_beacon_signal. This can be used 1035 * to avoid generating less reliable cqm events that would be based 1036 * only on couple of received frames. 1037 */ 1038 unsigned int count_beacon_signal; 1039 1040 /* Number of times beacon loss was invoked. */ 1041 unsigned int beacon_loss_count; 1042 1043 /* 1044 * Last Beacon frame signal strength average (ave_beacon_signal / 16) 1045 * that triggered a cqm event. 0 indicates that no event has been 1046 * generated for the current association. 1047 */ 1048 int last_cqm_event_signal; 1049 1050 int wmm_last_param_set; 1051 int mu_edca_last_param_set; 1052 }; 1053 1054 struct ieee80211_link_data_ap { 1055 struct beacon_data __rcu *beacon; 1056 struct probe_resp __rcu *probe_resp; 1057 struct fils_discovery_data __rcu *fils_discovery; 1058 struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp; 1059 struct s1g_short_beacon_data __rcu *s1g_short_beacon; 1060 1061 /* to be used after channel switch. */ 1062 struct cfg80211_beacon_data *next_beacon; 1063 }; 1064 1065 struct ieee80211_link_data { 1066 struct ieee80211_sub_if_data *sdata; 1067 unsigned int link_id; 1068 1069 /* multicast keys only */ 1070 struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS + 1071 NUM_DEFAULT_MGMT_KEYS + 1072 NUM_DEFAULT_BEACON_KEYS]; 1073 struct ieee80211_key __rcu *default_multicast_key; 1074 struct ieee80211_key __rcu *default_mgmt_key; 1075 struct ieee80211_key __rcu *default_beacon_key; 1076 1077 1078 bool operating_11g_mode; 1079 1080 struct { 1081 struct wiphy_work finalize_work; 1082 struct ieee80211_chan_req chanreq; 1083 } csa; 1084 1085 struct wiphy_work color_change_finalize_work; 1086 struct wiphy_delayed_work color_collision_detect_work; 1087 u64 color_bitmap; 1088 1089 /* context reservation -- protected with wiphy mutex */ 1090 struct ieee80211_chanctx *reserved_chanctx; 1091 struct ieee80211_chan_req reserved; 1092 bool reserved_radar_required; 1093 bool reserved_ready; 1094 1095 u8 needed_rx_chains; 1096 enum ieee80211_smps_mode smps_mode; 1097 1098 int user_power_level; /* in dBm */ 1099 int ap_power_level; /* in dBm */ 1100 1101 bool radar_required; 1102 struct wiphy_delayed_work dfs_cac_timer_work; 1103 1104 union { 1105 struct ieee80211_link_data_managed mgd; 1106 struct ieee80211_link_data_ap ap; 1107 } u; 1108 1109 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS]; 1110 1111 struct ieee80211_bss_conf *conf; 1112 1113 #ifdef CONFIG_MAC80211_DEBUGFS 1114 struct dentry *debugfs_dir; 1115 #endif 1116 }; 1117 1118 struct ieee80211_sub_if_data { 1119 struct list_head list; 1120 1121 struct wireless_dev wdev; 1122 1123 /* keys */ 1124 struct list_head key_list; 1125 1126 /* count for keys needing tailroom space allocation */ 1127 int crypto_tx_tailroom_needed_cnt; 1128 int crypto_tx_tailroom_pending_dec; 1129 struct wiphy_delayed_work dec_tailroom_needed_wk; 1130 1131 struct net_device *dev; 1132 struct ieee80211_local *local; 1133 1134 unsigned int flags; 1135 1136 unsigned long state; 1137 1138 char name[IFNAMSIZ]; 1139 1140 struct ieee80211_fragment_cache frags; 1141 1142 /* TID bitmap for NoAck policy */ 1143 u16 noack_map; 1144 1145 /* bit field of ACM bits (BIT(802.1D tag)) */ 1146 u8 wmm_acm; 1147 1148 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS]; 1149 struct ieee80211_key __rcu *default_unicast_key; 1150 1151 u16 sequence_number; 1152 u16 mld_mcast_seq; 1153 __be16 control_port_protocol; 1154 bool control_port_no_encrypt; 1155 bool control_port_no_preauth; 1156 bool control_port_over_nl80211; 1157 1158 atomic_t num_tx_queued; 1159 struct mac80211_qos_map __rcu *qos_map; 1160 1161 struct wiphy_work work; 1162 struct sk_buff_head skb_queue; 1163 struct sk_buff_head status_queue; 1164 1165 /* 1166 * AP this belongs to: self in AP mode and 1167 * corresponding AP in VLAN mode, NULL for 1168 * all others (might be needed later in IBSS) 1169 */ 1170 struct ieee80211_if_ap *bss; 1171 1172 /* bitmap of allowed (non-MCS) rate indexes for rate control */ 1173 u32 rc_rateidx_mask[NUM_NL80211_BANDS]; 1174 1175 bool rc_has_mcs_mask[NUM_NL80211_BANDS]; 1176 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN]; 1177 1178 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS]; 1179 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX]; 1180 1181 /* Beacon frame (non-MCS) rate (as a bitmap) */ 1182 u32 beacon_rateidx_mask[NUM_NL80211_BANDS]; 1183 bool beacon_rate_set; 1184 1185 union { 1186 struct ieee80211_if_ap ap; 1187 struct ieee80211_if_vlan vlan; 1188 struct ieee80211_if_managed mgd; 1189 struct ieee80211_if_ibss ibss; 1190 struct ieee80211_if_mesh mesh; 1191 struct ieee80211_if_ocb ocb; 1192 struct ieee80211_if_mntr mntr; 1193 struct ieee80211_if_nan nan; 1194 } u; 1195 1196 struct ieee80211_link_data deflink; 1197 struct ieee80211_link_data __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS]; 1198 1199 /* for ieee80211_set_active_links_async() */ 1200 struct wiphy_work activate_links_work; 1201 u16 desired_active_links; 1202 1203 u16 restart_active_links; 1204 1205 #ifdef CONFIG_MAC80211_DEBUGFS 1206 struct { 1207 struct dentry *subdir_stations; 1208 struct dentry *default_unicast_key; 1209 struct dentry *default_multicast_key; 1210 struct dentry *default_mgmt_key; 1211 struct dentry *default_beacon_key; 1212 } debugfs; 1213 #endif 1214 1215 u32 tx_handlers_drop; 1216 /* must be last, dynamically sized area in this! */ 1217 struct ieee80211_vif vif; 1218 }; 1219 1220 static inline 1221 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p) 1222 { 1223 return container_of(p, struct ieee80211_sub_if_data, vif); 1224 } 1225 1226 #define sdata_dereference(p, sdata) \ 1227 wiphy_dereference(sdata->local->hw.wiphy, p) 1228 1229 #define for_each_sdata_link(_local, _link) \ 1230 /* outer loop just to define the variables ... */ \ 1231 for (struct ieee80211_sub_if_data *___sdata = NULL; \ 1232 !___sdata; \ 1233 ___sdata = (void *)~0 /* always stop */) \ 1234 for (int ___link_id = ARRAY_SIZE(___sdata->link); \ 1235 ___link_id; ___link_id = 0 /* always stop */) \ 1236 list_for_each_entry(___sdata, &(_local)->interfaces, list) \ 1237 if (___link_id == ARRAY_SIZE(___sdata->link) && \ 1238 ieee80211_sdata_running(___sdata)) \ 1239 for (___link_id = 0; \ 1240 ___link_id < ARRAY_SIZE(___sdata->link); \ 1241 ___link_id++) \ 1242 if ((_link = wiphy_dereference((_local)->hw.wiphy, \ 1243 ___sdata->link[___link_id]))) 1244 1245 /* 1246 * for_each_sdata_link_rcu() must be used under RCU read lock. 1247 */ 1248 #define for_each_sdata_link_rcu(_local, _link) \ 1249 /* outer loop just to define the variables ... */ \ 1250 for (struct ieee80211_sub_if_data *___sdata = NULL; \ 1251 !___sdata; \ 1252 ___sdata = (void *)~0 /* always stop */) \ 1253 for (int ___link_id = ARRAY_SIZE(___sdata->link); \ 1254 ___link_id; ___link_id = 0 /* always stop */) \ 1255 list_for_each_entry(___sdata, &(_local)->interfaces, list) \ 1256 if (___link_id == ARRAY_SIZE(___sdata->link) && \ 1257 ieee80211_sdata_running(___sdata)) \ 1258 for (___link_id = 0; \ 1259 ___link_id < ARRAY_SIZE((___sdata)->link); \ 1260 ___link_id++) \ 1261 if ((_link = rcu_dereference((___sdata)->link[___link_id]))) 1262 1263 #define for_each_link_data(sdata, __link) \ 1264 /* outer loop just to define the variable ... */ \ 1265 for (struct ieee80211_sub_if_data *__sdata = (sdata); __sdata; \ 1266 __sdata = NULL /* always stop */) \ 1267 for (int __link_id = 0; \ 1268 __link_id < ARRAY_SIZE((__sdata)->link); __link_id++) \ 1269 if ((!(__sdata)->vif.valid_links || \ 1270 (__sdata)->vif.valid_links & BIT(__link_id)) && \ 1271 ((__link) = sdata_dereference((__sdata)->link[__link_id], \ 1272 (__sdata)))) 1273 1274 /* 1275 * for_each_link_data_rcu should be used under RCU read lock. 1276 */ 1277 #define for_each_link_data_rcu(sdata, __link) \ 1278 /* outer loop just to define the variable ... */ \ 1279 for (struct ieee80211_sub_if_data *__sdata = (sdata); __sdata; \ 1280 __sdata = NULL /* always stop */) \ 1281 for (int __link_id = 0; \ 1282 __link_id < ARRAY_SIZE((__sdata)->link); __link_id++) \ 1283 if ((!(__sdata)->vif.valid_links || \ 1284 (__sdata)->vif.valid_links & BIT(__link_id)) && \ 1285 ((__link) = rcu_dereference((__sdata)->link[__link_id]))) \ 1286 1287 static inline int 1288 ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems *elems, 1289 struct cfg80211_rnr_elems *rnr_elems, 1290 u8 i) 1291 { 1292 int len = 0; 1293 1294 if (!elems || !elems->cnt || i > elems->cnt) 1295 return 0; 1296 1297 if (i < elems->cnt) { 1298 len = elems->elem[i].len; 1299 if (rnr_elems) { 1300 len += rnr_elems->elem[i].len; 1301 for (i = elems->cnt; i < rnr_elems->cnt; i++) 1302 len += rnr_elems->elem[i].len; 1303 } 1304 return len; 1305 } 1306 1307 /* i == elems->cnt, calculate total length of all MBSSID elements */ 1308 for (i = 0; i < elems->cnt; i++) 1309 len += elems->elem[i].len; 1310 1311 if (rnr_elems) { 1312 for (i = 0; i < rnr_elems->cnt; i++) 1313 len += rnr_elems->elem[i].len; 1314 } 1315 1316 return len; 1317 } 1318 1319 enum { 1320 IEEE80211_RX_MSG = 1, 1321 IEEE80211_TX_STATUS_MSG = 2, 1322 }; 1323 1324 enum queue_stop_reason { 1325 IEEE80211_QUEUE_STOP_REASON_DRIVER, 1326 IEEE80211_QUEUE_STOP_REASON_PS, 1327 IEEE80211_QUEUE_STOP_REASON_CSA, 1328 IEEE80211_QUEUE_STOP_REASON_AGGREGATION, 1329 IEEE80211_QUEUE_STOP_REASON_SUSPEND, 1330 IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 1331 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL, 1332 IEEE80211_QUEUE_STOP_REASON_FLUSH, 1333 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN, 1334 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID, 1335 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE, 1336 1337 IEEE80211_QUEUE_STOP_REASONS, 1338 }; 1339 1340 #ifdef CONFIG_MAC80211_LEDS 1341 struct tpt_led_trigger { 1342 char name[32]; 1343 const struct ieee80211_tpt_blink *blink_table; 1344 unsigned int blink_table_len; 1345 struct timer_list timer; 1346 struct ieee80211_local *local; 1347 unsigned long prev_traffic; 1348 unsigned long tx_bytes, rx_bytes; 1349 unsigned int active, want; 1350 bool running; 1351 }; 1352 #endif 1353 1354 /** 1355 * enum mac80211_scan_flags - currently active scan mode 1356 * 1357 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as 1358 * well be on the operating channel 1359 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to 1360 * determine if we are on the operating channel or not 1361 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating 1362 * channel. This should not interrupt normal traffic. 1363 * @SCAN_COMPLETED: Set for our scan work function when the driver reported 1364 * that the scan completed. 1365 * @SCAN_ABORTED: Set for our scan work function when the driver reported 1366 * a scan complete for an aborted scan. 1367 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being 1368 * cancelled. 1369 * @SCAN_BEACON_WAIT: Set whenever we're passive scanning because of radar/no-IR 1370 * and could send a probe request after receiving a beacon. 1371 * @SCAN_BEACON_DONE: Beacon received, we can now send a probe request 1372 */ 1373 enum mac80211_scan_flags { 1374 SCAN_SW_SCANNING, 1375 SCAN_HW_SCANNING, 1376 SCAN_ONCHANNEL_SCANNING, 1377 SCAN_COMPLETED, 1378 SCAN_ABORTED, 1379 SCAN_HW_CANCELLED, 1380 SCAN_BEACON_WAIT, 1381 SCAN_BEACON_DONE, 1382 }; 1383 1384 /** 1385 * enum mac80211_scan_state - scan state machine states 1386 * 1387 * @SCAN_DECISION: Main entry point to the scan state machine, this state 1388 * determines if we should keep on scanning or switch back to the 1389 * operating channel 1390 * @SCAN_SET_CHANNEL: Set the next channel to be scanned 1391 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses 1392 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to 1393 * send out data 1394 * @SCAN_RESUME: Resume the scan and scan the next channel 1395 * @SCAN_ABORT: Abort the scan and go back to operating channel 1396 */ 1397 enum mac80211_scan_state { 1398 SCAN_DECISION, 1399 SCAN_SET_CHANNEL, 1400 SCAN_SEND_PROBE, 1401 SCAN_SUSPEND, 1402 SCAN_RESUME, 1403 SCAN_ABORT, 1404 }; 1405 1406 DECLARE_STATIC_KEY_FALSE(aql_disable); 1407 1408 struct ieee80211_local { 1409 /* embed the driver visible part. 1410 * don't cast (use the static inlines below), but we keep 1411 * it first anyway so they become a no-op */ 1412 struct ieee80211_hw hw; 1413 1414 struct fq fq; 1415 struct codel_vars *cvars; 1416 struct codel_params cparams; 1417 1418 /* protects active_txqs and txqi->schedule_order */ 1419 spinlock_t active_txq_lock[IEEE80211_NUM_ACS]; 1420 struct list_head active_txqs[IEEE80211_NUM_ACS]; 1421 u16 schedule_round[IEEE80211_NUM_ACS]; 1422 1423 /* serializes ieee80211_handle_wake_tx_queue */ 1424 spinlock_t handle_wake_tx_queue_lock; 1425 1426 u16 airtime_flags; 1427 u32 aql_txq_limit_low[IEEE80211_NUM_ACS]; 1428 u32 aql_txq_limit_high[IEEE80211_NUM_ACS]; 1429 u32 aql_threshold; 1430 atomic_t aql_total_pending_airtime; 1431 atomic_t aql_ac_pending_airtime[IEEE80211_NUM_ACS]; 1432 1433 const struct ieee80211_ops *ops; 1434 1435 /* 1436 * private workqueue to mac80211. mac80211 makes this accessible 1437 * via ieee80211_queue_work() 1438 */ 1439 struct workqueue_struct *workqueue; 1440 1441 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES]; 1442 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS]; 1443 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */ 1444 spinlock_t queue_stop_reason_lock; 1445 1446 int open_count; 1447 int monitors, virt_monitors, tx_mntrs; 1448 /* number of interfaces with corresponding FIF_ flags */ 1449 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll, 1450 fif_probe_req; 1451 bool probe_req_reg; 1452 bool rx_mcast_action_reg; 1453 unsigned int filter_flags; /* FIF_* */ 1454 1455 struct cfg80211_chan_def dflt_chandef; 1456 bool emulate_chanctx; 1457 1458 /* protects the aggregated multicast list and filter calls */ 1459 spinlock_t filter_lock; 1460 1461 /* used for uploading changed mc list */ 1462 struct wiphy_work reconfig_filter; 1463 1464 /* aggregated multicast list */ 1465 struct netdev_hw_addr_list mc_list; 1466 1467 bool tim_in_locked_section; /* see ieee80211_beacon_get() */ 1468 1469 /* 1470 * suspended is true if we finished all the suspend _and_ we have 1471 * not yet come up from resume. This is to be used by mac80211 1472 * to ensure driver sanity during suspend and mac80211's own 1473 * sanity. It can eventually be used for WoW as well. 1474 */ 1475 bool suspended; 1476 1477 /* suspending is true during the whole suspend process */ 1478 bool suspending; 1479 1480 /* 1481 * Resuming is true while suspended, but when we're reprogramming the 1482 * hardware -- at that time it's allowed to use ieee80211_queue_work() 1483 * again even though some other parts of the stack are still suspended 1484 * and we still drop received frames to avoid waking the stack. 1485 */ 1486 bool resuming; 1487 1488 /* 1489 * quiescing is true during the suspend process _only_ to 1490 * ease timer cancelling etc. 1491 */ 1492 bool quiescing; 1493 1494 /* device is started */ 1495 bool started; 1496 1497 /* device is during a HW reconfig */ 1498 bool in_reconfig; 1499 1500 /* reconfiguration failed ... suppress some warnings etc. */ 1501 bool reconfig_failure; 1502 1503 /* wowlan is enabled -- don't reconfig on resume */ 1504 bool wowlan; 1505 1506 struct wiphy_work radar_detected_work; 1507 1508 /* number of RX chains the hardware has */ 1509 u8 rx_chains; 1510 1511 /* bitmap of which sbands were copied */ 1512 u8 sband_allocated; 1513 1514 int tx_headroom; /* required headroom for hardware/radiotap */ 1515 1516 /* Tasklet and skb queue to process calls from IRQ mode. All frames 1517 * added to skb_queue will be processed, but frames in 1518 * skb_queue_unreliable may be dropped if the total length of these 1519 * queues increases over the limit. */ 1520 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128 1521 struct tasklet_struct tasklet; 1522 struct sk_buff_head skb_queue; 1523 struct sk_buff_head skb_queue_unreliable; 1524 1525 spinlock_t rx_path_lock; 1526 1527 /* Station data */ 1528 /* 1529 * The list, hash table and counter are protected 1530 * by the wiphy mutex, reads are done with RCU. 1531 */ 1532 spinlock_t tim_lock; 1533 unsigned long num_sta; 1534 struct list_head sta_list; 1535 struct rhltable sta_hash; 1536 struct rhltable link_sta_hash; 1537 struct timer_list sta_cleanup; 1538 int sta_generation; 1539 1540 struct sk_buff_head pending[IEEE80211_MAX_QUEUES]; 1541 struct tasklet_struct tx_pending_tasklet; 1542 struct tasklet_struct wake_txqs_tasklet; 1543 1544 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES]; 1545 1546 /* number of interfaces with allmulti RX */ 1547 atomic_t iff_allmultis; 1548 1549 struct rate_control_ref *rate_ctrl; 1550 1551 struct arc4_ctx wep_tx_ctx; 1552 struct arc4_ctx wep_rx_ctx; 1553 u32 wep_iv; 1554 1555 /* see iface.c */ 1556 struct list_head interfaces; 1557 struct list_head mon_list; /* only that are IFF_UP */ 1558 struct mutex iflist_mtx; 1559 1560 /* Scanning and BSS list */ 1561 unsigned long scanning; 1562 struct cfg80211_ssid scan_ssid; 1563 struct cfg80211_scan_request *int_scan_req; 1564 struct cfg80211_scan_request __rcu *scan_req; 1565 struct ieee80211_scan_request *hw_scan_req; 1566 struct cfg80211_chan_def scan_chandef; 1567 enum nl80211_band hw_scan_band; 1568 int scan_channel_idx; 1569 int scan_ies_len; 1570 int hw_scan_ies_bufsize; 1571 struct cfg80211_scan_info scan_info; 1572 1573 struct wiphy_work sched_scan_stopped_work; 1574 struct ieee80211_sub_if_data __rcu *sched_scan_sdata; 1575 struct cfg80211_sched_scan_request __rcu *sched_scan_req; 1576 u8 scan_addr[ETH_ALEN]; 1577 1578 unsigned long leave_oper_channel_time; 1579 enum mac80211_scan_state next_scan_state; 1580 struct wiphy_delayed_work scan_work; 1581 struct ieee80211_sub_if_data __rcu *scan_sdata; 1582 1583 /* Temporary remain-on-channel for off-channel operations */ 1584 struct ieee80211_channel *tmp_channel; 1585 1586 /* channel contexts */ 1587 struct list_head chanctx_list; 1588 1589 #ifdef CONFIG_MAC80211_LEDS 1590 struct led_trigger tx_led, rx_led, assoc_led, radio_led; 1591 struct led_trigger tpt_led; 1592 atomic_t tx_led_active, rx_led_active, assoc_led_active; 1593 atomic_t radio_led_active, tpt_led_active; 1594 struct tpt_led_trigger *tpt_led_trigger; 1595 #endif 1596 1597 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS 1598 /* SNMP counters */ 1599 /* dot11CountersTable */ 1600 u32 dot11TransmittedFragmentCount; 1601 u32 dot11MulticastTransmittedFrameCount; 1602 u32 dot11FailedCount; 1603 u32 dot11RetryCount; 1604 u32 dot11MultipleRetryCount; 1605 u32 dot11FrameDuplicateCount; 1606 u32 dot11ReceivedFragmentCount; 1607 u32 dot11MulticastReceivedFrameCount; 1608 u32 dot11TransmittedFrameCount; 1609 1610 /* TX/RX handler statistics */ 1611 unsigned int tx_handlers_queued; 1612 unsigned int tx_handlers_drop_wep; 1613 unsigned int tx_handlers_drop_not_assoc; 1614 unsigned int tx_handlers_drop_unauth_port; 1615 unsigned int rx_handlers_drop; 1616 unsigned int rx_handlers_queued; 1617 unsigned int rx_handlers_drop_nullfunc; 1618 unsigned int rx_handlers_drop_defrag; 1619 unsigned int tx_expand_skb_head; 1620 unsigned int tx_expand_skb_head_cloned; 1621 unsigned int rx_expand_skb_head_defrag; 1622 unsigned int rx_handlers_fragments; 1623 unsigned int tx_status_drop; 1624 #define I802_DEBUG_INC(c) (c)++ 1625 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */ 1626 #define I802_DEBUG_INC(c) do { } while (0) 1627 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */ 1628 1629 1630 int total_ps_buffered; /* total number of all buffered unicast and 1631 * multicast packets for power saving stations 1632 */ 1633 1634 bool pspolling; 1635 /* 1636 * PS can only be enabled when we have exactly one managed 1637 * interface (and monitors) in PS, this then points there. 1638 */ 1639 struct ieee80211_sub_if_data *ps_sdata; 1640 struct wiphy_work dynamic_ps_enable_work; 1641 struct wiphy_work dynamic_ps_disable_work; 1642 struct timer_list dynamic_ps_timer; 1643 struct notifier_block ifa_notifier; 1644 struct notifier_block ifa6_notifier; 1645 1646 /* 1647 * The dynamic ps timeout configured from user space via WEXT - 1648 * this will override whatever chosen by mac80211 internally. 1649 */ 1650 int dynamic_ps_forced_timeout; 1651 1652 int user_power_level; /* in dBm, for all interfaces */ 1653 1654 struct work_struct restart_work; 1655 1656 #ifdef CONFIG_MAC80211_DEBUGFS 1657 struct local_debugfsdentries { 1658 struct dentry *rcdir; 1659 struct dentry *keys; 1660 } debugfs; 1661 bool force_tx_status; 1662 #endif 1663 1664 /* 1665 * Remain-on-channel support 1666 */ 1667 struct wiphy_delayed_work roc_work; 1668 struct list_head roc_list; 1669 struct wiphy_work hw_roc_start, hw_roc_done; 1670 unsigned long hw_roc_start_time; 1671 u64 roc_cookie_counter; 1672 1673 struct idr ack_status_frames; 1674 spinlock_t ack_status_lock; 1675 1676 /* virtual monitor interface */ 1677 struct ieee80211_sub_if_data __rcu *monitor_sdata; 1678 struct ieee80211_chan_req monitor_chanreq; 1679 1680 /* extended capabilities provided by mac80211 */ 1681 u8 ext_capa[8]; 1682 1683 bool wbrf_supported; 1684 }; 1685 1686 static inline struct ieee80211_sub_if_data * 1687 IEEE80211_DEV_TO_SUB_IF(const struct net_device *dev) 1688 { 1689 return netdev_priv(dev); 1690 } 1691 1692 static inline struct ieee80211_sub_if_data * 1693 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev) 1694 { 1695 return container_of(wdev, struct ieee80211_sub_if_data, wdev); 1696 } 1697 1698 static inline struct ieee80211_supported_band * 1699 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata) 1700 { 1701 struct ieee80211_local *local = sdata->local; 1702 struct ieee80211_chanctx_conf *chanctx_conf; 1703 enum nl80211_band band; 1704 1705 WARN_ON(ieee80211_vif_is_mld(&sdata->vif)); 1706 1707 rcu_read_lock(); 1708 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 1709 1710 if (!chanctx_conf) { 1711 rcu_read_unlock(); 1712 return NULL; 1713 } 1714 1715 band = chanctx_conf->def.chan->band; 1716 rcu_read_unlock(); 1717 1718 return local->hw.wiphy->bands[band]; 1719 } 1720 1721 static inline struct ieee80211_supported_band * 1722 ieee80211_get_link_sband(struct ieee80211_link_data *link) 1723 { 1724 struct ieee80211_local *local = link->sdata->local; 1725 struct ieee80211_chanctx_conf *chanctx_conf; 1726 enum nl80211_band band; 1727 1728 rcu_read_lock(); 1729 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 1730 if (!chanctx_conf) { 1731 rcu_read_unlock(); 1732 return NULL; 1733 } 1734 1735 band = chanctx_conf->def.chan->band; 1736 rcu_read_unlock(); 1737 1738 return local->hw.wiphy->bands[band]; 1739 } 1740 1741 /* this struct holds the value parsing from channel switch IE */ 1742 struct ieee80211_csa_ie { 1743 struct ieee80211_chan_req chanreq; 1744 u8 mode; 1745 u8 count; 1746 u8 ttl; 1747 u16 pre_value; 1748 u16 reason_code; 1749 u32 max_switch_time; 1750 }; 1751 1752 enum ieee80211_elems_parse_error { 1753 IEEE80211_PARSE_ERR_INVALID_END = BIT(0), 1754 IEEE80211_PARSE_ERR_DUP_ELEM = BIT(1), 1755 IEEE80211_PARSE_ERR_BAD_ELEM_SIZE = BIT(2), 1756 IEEE80211_PARSE_ERR_UNEXPECTED_ELEM = BIT(3), 1757 IEEE80211_PARSE_ERR_DUP_NEST_ML_BASIC = BIT(4), 1758 }; 1759 1760 /* Parsed Information Elements */ 1761 struct ieee802_11_elems { 1762 const u8 *ie_start; 1763 size_t total_len; 1764 u32 crc; 1765 1766 /* pointers to IEs */ 1767 const struct ieee80211_tdls_lnkie *lnk_id; 1768 const struct ieee80211_ch_switch_timing *ch_sw_timing; 1769 const u8 *ext_capab; 1770 const u8 *ssid; 1771 const u8 *supp_rates; 1772 const u8 *ds_params; 1773 const struct ieee80211_tim_ie *tim; 1774 const u8 *rsn; 1775 const u8 *rsnx; 1776 const u8 *erp_info; 1777 const u8 *ext_supp_rates; 1778 const u8 *wmm_info; 1779 const u8 *wmm_param; 1780 const struct ieee80211_ht_cap *ht_cap_elem; 1781 const struct ieee80211_ht_operation *ht_operation; 1782 const struct ieee80211_vht_cap *vht_cap_elem; 1783 const struct ieee80211_vht_operation *vht_operation; 1784 const struct ieee80211_meshconf_ie *mesh_config; 1785 const u8 *he_cap; 1786 const struct ieee80211_he_operation *he_operation; 1787 const struct ieee80211_he_spr *he_spr; 1788 const struct ieee80211_mu_edca_param_set *mu_edca_param_set; 1789 const struct ieee80211_he_6ghz_capa *he_6ghz_capa; 1790 const u8 *uora_element; 1791 const u8 *mesh_id; 1792 const u8 *peering; 1793 const __le16 *awake_window; 1794 const u8 *preq; 1795 const u8 *prep; 1796 const u8 *perr; 1797 const struct ieee80211_rann_ie *rann; 1798 const struct ieee80211_channel_sw_ie *ch_switch_ie; 1799 const struct ieee80211_ext_chansw_ie *ext_chansw_ie; 1800 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie; 1801 const u8 *max_channel_switch_time; 1802 const u8 *country_elem; 1803 const u8 *pwr_constr_elem; 1804 const u8 *cisco_dtpc_elem; 1805 const struct ieee80211_timeout_interval_ie *timeout_int; 1806 const u8 *opmode_notif; 1807 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs; 1808 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie; 1809 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie; 1810 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie; 1811 const struct ieee80211_bssid_index *bssid_index; 1812 u8 max_bssid_indicator; 1813 u8 dtim_count; 1814 u8 dtim_period; 1815 const struct ieee80211_addba_ext_ie *addba_ext_ie; 1816 const struct ieee80211_s1g_cap *s1g_capab; 1817 const struct ieee80211_s1g_oper_ie *s1g_oper; 1818 const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat; 1819 const struct ieee80211_aid_response_ie *aid_resp; 1820 const struct ieee80211_eht_cap_elem *eht_cap; 1821 const struct ieee80211_eht_operation *eht_operation; 1822 const struct ieee80211_multi_link_elem *ml_basic; 1823 const struct ieee80211_multi_link_elem *ml_reconf; 1824 const struct ieee80211_multi_link_elem *ml_epcs; 1825 const struct ieee80211_bandwidth_indication *bandwidth_indication; 1826 const struct ieee80211_ttlm_elem *ttlm[IEEE80211_TTLM_MAX_CNT]; 1827 1828 /* not the order in the psd values is per element, not per chandef */ 1829 struct ieee80211_parsed_tpe tpe; 1830 struct ieee80211_parsed_tpe csa_tpe; 1831 1832 /* length of them, respectively */ 1833 u8 ext_capab_len; 1834 u8 ssid_len; 1835 u8 supp_rates_len; 1836 u8 tim_len; 1837 u8 rsn_len; 1838 u8 rsnx_len; 1839 u8 ext_supp_rates_len; 1840 u8 wmm_info_len; 1841 u8 wmm_param_len; 1842 u8 he_cap_len; 1843 u8 mesh_id_len; 1844 u8 peering_len; 1845 u8 preq_len; 1846 u8 prep_len; 1847 u8 perr_len; 1848 u8 country_elem_len; 1849 u8 bssid_index_len; 1850 u8 eht_cap_len; 1851 1852 /* mult-link element can be de-fragmented and thus u8 is not sufficient */ 1853 size_t ml_basic_len; 1854 size_t ml_reconf_len; 1855 size_t ml_epcs_len; 1856 1857 u8 ttlm_num; 1858 1859 /* 1860 * store the per station profile pointer and length in case that the 1861 * parsing also handled Multi-Link element parsing for a specific link 1862 * ID. 1863 */ 1864 struct ieee80211_mle_per_sta_profile *prof; 1865 size_t sta_prof_len; 1866 1867 /* whether/which parse error occurred while retrieving these elements */ 1868 u8 parse_error; 1869 }; 1870 1871 static inline struct ieee80211_local *hw_to_local( 1872 struct ieee80211_hw *hw) 1873 { 1874 return container_of(hw, struct ieee80211_local, hw); 1875 } 1876 1877 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq) 1878 { 1879 return container_of(txq, struct txq_info, txq); 1880 } 1881 1882 static inline bool txq_has_queue(struct ieee80211_txq *txq) 1883 { 1884 struct txq_info *txqi = to_txq_info(txq); 1885 1886 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets); 1887 } 1888 1889 static inline bool 1890 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status) 1891 { 1892 return status->flag & RX_FLAG_MACTIME; 1893 } 1894 1895 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata); 1896 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata); 1897 1898 void ieee80211_vif_block_queues_csa(struct ieee80211_sub_if_data *sdata); 1899 void ieee80211_vif_unblock_queues_csa(struct ieee80211_sub_if_data *sdata); 1900 1901 /* This function returns the number of multicast stations connected to this 1902 * interface. It returns -1 if that number is not tracked, that is for netdevs 1903 * not in AP or AP_VLAN mode or when using 4addr. 1904 */ 1905 static inline int 1906 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata) 1907 { 1908 if (sdata->vif.type == NL80211_IFTYPE_AP) 1909 return atomic_read(&sdata->u.ap.num_mcast_sta); 1910 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta) 1911 return atomic_read(&sdata->u.vlan.num_mcast_sta); 1912 return -1; 1913 } 1914 1915 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, 1916 struct ieee80211_rx_status *status, 1917 unsigned int mpdu_len, 1918 unsigned int mpdu_offset); 1919 int ieee80211_hw_config(struct ieee80211_local *local, int radio_idx, 1920 u32 changed); 1921 int ieee80211_hw_conf_chan(struct ieee80211_local *local); 1922 void ieee80211_hw_conf_init(struct ieee80211_local *local); 1923 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); 1924 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, 1925 u64 changed); 1926 void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata, 1927 u64 changed); 1928 void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata, 1929 struct ieee80211_link_data *link, 1930 u64 changed); 1931 void ieee80211_configure_filter(struct ieee80211_local *local); 1932 u64 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata); 1933 1934 void ieee80211_handle_queued_frames(struct ieee80211_local *local); 1935 1936 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local); 1937 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 1938 u64 *cookie, gfp_t gfp); 1939 1940 void ieee80211_check_fast_rx(struct sta_info *sta); 1941 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata); 1942 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata); 1943 void ieee80211_clear_fast_rx(struct sta_info *sta); 1944 1945 bool ieee80211_is_our_addr(struct ieee80211_sub_if_data *sdata, 1946 const u8 *addr, int *out_link_id); 1947 1948 /* STA code */ 1949 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata); 1950 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, 1951 struct cfg80211_auth_request *req); 1952 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, 1953 struct cfg80211_assoc_request *req); 1954 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, 1955 struct cfg80211_deauth_request *req); 1956 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, 1957 struct cfg80211_disassoc_request *req); 1958 void ieee80211_send_pspoll(struct ieee80211_local *local, 1959 struct ieee80211_sub_if_data *sdata); 1960 void ieee80211_recalc_ps(struct ieee80211_local *local); 1961 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata); 1962 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata); 1963 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 1964 struct sk_buff *skb); 1965 void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata, 1966 struct sk_buff *skb); 1967 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata); 1968 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata); 1969 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata); 1970 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata, 1971 __le16 fc, bool acked); 1972 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata); 1973 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata); 1974 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata); 1975 void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, 1976 u8 reason, bool tx); 1977 void ieee80211_mgd_setup_link(struct ieee80211_link_data *link); 1978 void ieee80211_mgd_stop_link(struct ieee80211_link_data *link); 1979 void ieee80211_mgd_set_link_qos_params(struct ieee80211_link_data *link); 1980 1981 /* IBSS code */ 1982 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local); 1983 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata); 1984 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata, 1985 const u8 *bssid, const u8 *addr, u32 supp_rates); 1986 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, 1987 struct cfg80211_ibss_params *params); 1988 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata); 1989 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata); 1990 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 1991 struct sk_buff *skb); 1992 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata, 1993 struct cfg80211_csa_settings *csa_settings, 1994 u64 *changed); 1995 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata, 1996 u64 *changed); 1997 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata); 1998 1999 /* OCB code */ 2000 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata); 2001 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata, 2002 const u8 *bssid, const u8 *addr, u32 supp_rates); 2003 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata); 2004 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata, 2005 struct ocb_setup *setup); 2006 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata); 2007 2008 /* mesh code */ 2009 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata); 2010 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 2011 struct sk_buff *skb); 2012 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata, 2013 struct cfg80211_csa_settings *csa_settings, 2014 u64 *changed); 2015 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata, 2016 u64 *changed); 2017 2018 /* scan/BSS handling */ 2019 void ieee80211_scan_work(struct wiphy *wiphy, struct wiphy_work *work); 2020 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata, 2021 const u8 *ssid, u8 ssid_len, 2022 struct ieee80211_channel **channels, 2023 unsigned int n_channels); 2024 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, 2025 struct cfg80211_scan_request *req); 2026 void ieee80211_scan_cancel(struct ieee80211_local *local); 2027 void ieee80211_run_deferred_scan(struct ieee80211_local *local); 2028 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb); 2029 2030 void ieee80211_inform_bss(struct wiphy *wiphy, struct cfg80211_bss *bss, 2031 const struct cfg80211_bss_ies *ies, void *data); 2032 2033 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local); 2034 struct ieee80211_bss * 2035 ieee80211_bss_info_update(struct ieee80211_local *local, 2036 struct ieee80211_rx_status *rx_status, 2037 struct ieee80211_mgmt *mgmt, 2038 size_t len, 2039 struct ieee80211_channel *channel); 2040 void ieee80211_rx_bss_put(struct ieee80211_local *local, 2041 struct ieee80211_bss *bss); 2042 2043 /* scheduled scan handling */ 2044 int 2045 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, 2046 struct cfg80211_sched_scan_request *req); 2047 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, 2048 struct cfg80211_sched_scan_request *req); 2049 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local); 2050 void ieee80211_sched_scan_end(struct ieee80211_local *local); 2051 void ieee80211_sched_scan_stopped_work(struct wiphy *wiphy, 2052 struct wiphy_work *work); 2053 2054 /* off-channel/mgmt-tx */ 2055 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local); 2056 void ieee80211_offchannel_return(struct ieee80211_local *local); 2057 void ieee80211_roc_setup(struct ieee80211_local *local); 2058 void ieee80211_start_next_roc(struct ieee80211_local *local); 2059 void ieee80211_reconfig_roc(struct ieee80211_local *local); 2060 void ieee80211_roc_purge(struct ieee80211_local *local, 2061 struct ieee80211_sub_if_data *sdata); 2062 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev, 2063 struct ieee80211_channel *chan, 2064 unsigned int duration, u64 *cookie); 2065 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, 2066 struct wireless_dev *wdev, u64 cookie); 2067 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 2068 struct cfg80211_mgmt_tx_params *params, u64 *cookie); 2069 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, 2070 struct wireless_dev *wdev, u64 cookie); 2071 2072 /* channel switch handling */ 2073 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work); 2074 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 2075 struct cfg80211_csa_settings *params); 2076 2077 /* color change handling */ 2078 void ieee80211_color_change_finalize_work(struct wiphy *wiphy, 2079 struct wiphy_work *work); 2080 void ieee80211_color_collision_detection_work(struct wiphy *wiphy, 2081 struct wiphy_work *work); 2082 2083 /* interface handling */ 2084 #define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \ 2085 NETIF_F_HW_CSUM | NETIF_F_SG | \ 2086 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE | \ 2087 NETIF_F_HW_TC) 2088 #define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM) 2089 #define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \ 2090 MAC80211_SUPPORTED_FEATURES_RX) 2091 2092 int ieee80211_iface_init(void); 2093 void ieee80211_iface_exit(void); 2094 int ieee80211_if_add(struct ieee80211_local *local, const char *name, 2095 unsigned char name_assign_type, 2096 struct wireless_dev **new_wdev, enum nl80211_iftype type, 2097 struct vif_params *params); 2098 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, 2099 enum nl80211_iftype type); 2100 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata); 2101 void ieee80211_remove_interfaces(struct ieee80211_local *local); 2102 u32 ieee80211_idle_off(struct ieee80211_local *local); 2103 void ieee80211_recalc_idle(struct ieee80211_local *local); 2104 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata, 2105 const int offset); 2106 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up); 2107 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata); 2108 int ieee80211_add_virtual_monitor(struct ieee80211_local *local, 2109 struct ieee80211_sub_if_data *creator_sdata); 2110 void ieee80211_del_virtual_monitor(struct ieee80211_local *local); 2111 2112 bool __ieee80211_recalc_txpower(struct ieee80211_link_data *link); 2113 void ieee80211_recalc_txpower(struct ieee80211_link_data *link, 2114 bool update_bss); 2115 void ieee80211_recalc_offload(struct ieee80211_local *local); 2116 2117 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata) 2118 { 2119 return test_bit(SDATA_STATE_RUNNING, &sdata->state); 2120 } 2121 2122 /* link handling */ 2123 void ieee80211_link_setup(struct ieee80211_link_data *link); 2124 void ieee80211_link_init(struct ieee80211_sub_if_data *sdata, 2125 int link_id, 2126 struct ieee80211_link_data *link, 2127 struct ieee80211_bss_conf *link_conf); 2128 void ieee80211_link_stop(struct ieee80211_link_data *link); 2129 int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata, 2130 u16 new_links, u16 dormant_links); 2131 static inline void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata) 2132 { 2133 ieee80211_vif_set_links(sdata, 0, 0); 2134 } 2135 2136 void ieee80211_apvlan_link_setup(struct ieee80211_sub_if_data *sdata); 2137 void ieee80211_apvlan_link_clear(struct ieee80211_sub_if_data *sdata); 2138 2139 /* tx handling */ 2140 void ieee80211_clear_tx_pending(struct ieee80211_local *local); 2141 void ieee80211_tx_pending(struct tasklet_struct *t); 2142 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb, 2143 struct net_device *dev); 2144 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, 2145 struct net_device *dev); 2146 netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb, 2147 struct net_device *dev); 2148 void __ieee80211_subif_start_xmit(struct sk_buff *skb, 2149 struct net_device *dev, 2150 u32 info_flags, 2151 u32 ctrl_flags, 2152 u64 *cookie); 2153 struct sk_buff * 2154 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata, 2155 struct sk_buff *skb, u32 info_flags); 2156 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb, 2157 int retry_count, struct ieee80211_tx_status *status); 2158 2159 void ieee80211_check_fast_xmit(struct sta_info *sta); 2160 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local); 2161 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata); 2162 void ieee80211_clear_fast_xmit(struct sta_info *sta); 2163 int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev, 2164 const u8 *buf, size_t len, 2165 const u8 *dest, __be16 proto, bool unencrypted, 2166 int link_id, u64 *cookie); 2167 int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev, 2168 const u8 *buf, size_t len); 2169 void __ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata, 2170 struct sta_info *sta, 2171 struct ieee80211_fast_tx *fast_tx, 2172 struct sk_buff *skb, bool ampdu, 2173 const u8 *da, const u8 *sa); 2174 void ieee80211_aggr_check(struct ieee80211_sub_if_data *sdata, 2175 struct sta_info *sta, struct sk_buff *skb); 2176 2177 /* HT */ 2178 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, 2179 struct ieee80211_sta_ht_cap *ht_cap); 2180 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, 2181 struct ieee80211_supported_band *sband, 2182 const struct ieee80211_ht_cap *ht_cap_ie, 2183 struct link_sta_info *link_sta); 2184 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, 2185 const u8 *da, u16 tid, 2186 u16 initiator, u16 reason_code); 2187 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata, 2188 enum ieee80211_smps_mode smps, const u8 *da, 2189 const u8 *bssid, int link_id); 2190 void ieee80211_add_addbaext(struct sk_buff *skb, 2191 const u8 req_addba_ext_data, 2192 u16 buf_size); 2193 u8 ieee80211_retrieve_addba_ext_data(struct sta_info *sta, 2194 const void *elem_data, ssize_t elem_len, 2195 u16 *buf_size); 2196 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, 2197 u16 initiator, u16 reason, bool stop); 2198 void __ieee80211_start_rx_ba_session(struct sta_info *sta, 2199 u8 dialog_token, u16 timeout, 2200 u16 start_seq_num, u16 ba_policy, u16 tid, 2201 u16 buf_size, bool tx, bool auto_seq, 2202 const u8 addba_ext_data); 2203 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, 2204 enum ieee80211_agg_stop_reason reason); 2205 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, 2206 struct sta_info *sta, 2207 struct ieee80211_mgmt *mgmt, size_t len); 2208 void ieee80211_process_addba_resp(struct ieee80211_local *local, 2209 struct sta_info *sta, 2210 struct ieee80211_mgmt *mgmt, 2211 size_t len); 2212 void ieee80211_process_addba_request(struct ieee80211_local *local, 2213 struct sta_info *sta, 2214 struct ieee80211_mgmt *mgmt, 2215 size_t len); 2216 2217 static inline struct ieee80211_mgmt * 2218 ieee80211_mgmt_ba(struct sk_buff *skb, const u8 *da, 2219 struct ieee80211_sub_if_data *sdata) 2220 { 2221 struct ieee80211_mgmt *mgmt = skb_put_zero(skb, 24); 2222 2223 ether_addr_copy(mgmt->da, da); 2224 ether_addr_copy(mgmt->sa, sdata->vif.addr); 2225 2226 if (sdata->vif.type == NL80211_IFTYPE_AP || 2227 sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 2228 sdata->vif.type == NL80211_IFTYPE_MESH_POINT) 2229 ether_addr_copy(mgmt->bssid, sdata->vif.addr); 2230 else if (sdata->vif.type == NL80211_IFTYPE_STATION) 2231 ether_addr_copy(mgmt->bssid, sdata->vif.cfg.ap_addr); 2232 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) 2233 ether_addr_copy(mgmt->bssid, sdata->u.ibss.bssid); 2234 2235 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 2236 IEEE80211_STYPE_ACTION); 2237 return mgmt; 2238 } 2239 2240 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, 2241 enum ieee80211_agg_stop_reason reason); 2242 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid, 2243 struct tid_ampdu_tx *tid_tx); 2244 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid, 2245 struct tid_ampdu_tx *tid_tx); 2246 void ieee80211_ba_session_work(struct wiphy *wiphy, struct wiphy_work *work); 2247 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid); 2248 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid); 2249 2250 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs); 2251 enum nl80211_smps_mode 2252 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps); 2253 2254 void ieee80211_ht_handle_chanwidth_notif(struct ieee80211_local *local, 2255 struct ieee80211_sub_if_data *sdata, 2256 struct sta_info *sta, 2257 struct link_sta_info *link_sta, 2258 u8 chanwidth, enum nl80211_band band); 2259 2260 /* VHT */ 2261 void 2262 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, 2263 struct ieee80211_supported_band *sband, 2264 const struct ieee80211_vht_cap *vht_cap_ie, 2265 const struct ieee80211_vht_cap *vht_cap_ie2, 2266 struct link_sta_info *link_sta); 2267 enum ieee80211_sta_rx_bandwidth 2268 _ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta, 2269 struct cfg80211_chan_def *chandef); 2270 static inline enum ieee80211_sta_rx_bandwidth 2271 ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta) 2272 { 2273 return _ieee80211_sta_cap_rx_bw(link_sta, NULL); 2274 } 2275 enum ieee80211_sta_rx_bandwidth 2276 _ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta, 2277 struct cfg80211_chan_def *chandef); 2278 static inline enum ieee80211_sta_rx_bandwidth 2279 ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta) 2280 { 2281 return _ieee80211_sta_cur_vht_bw(link_sta, NULL); 2282 } 2283 void ieee80211_sta_init_nss(struct link_sta_info *link_sta); 2284 enum nl80211_chan_width 2285 ieee80211_sta_cap_chan_bw(struct link_sta_info *link_sta); 2286 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata, 2287 struct ieee80211_link_data *link, 2288 struct ieee80211_mgmt *mgmt); 2289 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, 2290 struct link_sta_info *sta, 2291 u8 opmode, enum nl80211_band band); 2292 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, 2293 struct link_sta_info *sta, 2294 u8 opmode, enum nl80211_band band); 2295 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata, 2296 struct ieee80211_sta_vht_cap *vht_cap); 2297 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap, 2298 u16 vht_mask[NL80211_VHT_NSS_MAX]); 2299 enum nl80211_chan_width 2300 ieee80211_sta_rx_bw_to_chan_width(struct link_sta_info *sta); 2301 2302 /* HE */ 2303 void 2304 ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata, 2305 struct ieee80211_supported_band *sband, 2306 const u8 *he_cap_ie, u8 he_cap_len, 2307 const struct ieee80211_he_6ghz_capa *he_6ghz_capa, 2308 struct link_sta_info *link_sta); 2309 void 2310 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif, 2311 const struct ieee80211_he_spr *he_spr_ie_elem); 2312 2313 void 2314 ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif, 2315 const struct ieee80211_he_operation *he_op_ie_elem); 2316 2317 /* S1G */ 2318 void ieee80211_s1g_sta_rate_init(struct sta_info *sta); 2319 bool ieee80211_s1g_is_twt_setup(struct sk_buff *skb); 2320 void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata, 2321 struct sk_buff *skb); 2322 void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata, 2323 struct sk_buff *skb); 2324 void ieee80211_s1g_cap_to_sta_s1g_cap(struct ieee80211_sub_if_data *sdata, 2325 const struct ieee80211_s1g_cap *s1g_cap_ie, 2326 struct link_sta_info *link_sta); 2327 2328 /* Spectrum management */ 2329 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, 2330 struct ieee80211_mgmt *mgmt, 2331 size_t len); 2332 /** 2333 * ieee80211_parse_ch_switch_ie - parses channel switch IEs 2334 * @sdata: the sdata of the interface which has received the frame 2335 * @elems: parsed 802.11 elements received with the frame 2336 * @current_band: indicates the current band 2337 * @vht_cap_info: VHT capabilities of the transmitter 2338 * @conn: contains information about own capabilities and restrictions 2339 * to decide which channel switch announcements can be accepted 2340 * @bssid: the currently connected bssid (for reporting) 2341 * @unprot_action: whether the frame was an unprotected frame or not, 2342 * used for reporting 2343 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl. 2344 * All of them will be filled with if success only. 2345 * Return: 0 on success, <0 on error and >0 if there is nothing to parse. 2346 */ 2347 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata, 2348 struct ieee802_11_elems *elems, 2349 enum nl80211_band current_band, 2350 u32 vht_cap_info, 2351 struct ieee80211_conn_settings *conn, 2352 u8 *bssid, bool unprot_action, 2353 struct ieee80211_csa_ie *csa_ie); 2354 2355 /* Suspend/resume and hw reconfiguration */ 2356 int ieee80211_reconfig(struct ieee80211_local *local); 2357 void ieee80211_stop_device(struct ieee80211_local *local, bool suspend); 2358 2359 int __ieee80211_suspend(struct ieee80211_hw *hw, 2360 struct cfg80211_wowlan *wowlan); 2361 2362 static inline int __ieee80211_resume(struct ieee80211_hw *hw) 2363 { 2364 struct ieee80211_local *local = hw_to_local(hw); 2365 2366 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) && 2367 !test_bit(SCAN_COMPLETED, &local->scanning), 2368 "%s: resume with hardware scan still in progress\n", 2369 wiphy_name(hw->wiphy)); 2370 2371 return ieee80211_reconfig(hw_to_local(hw)); 2372 } 2373 2374 /* utility functions/constants */ 2375 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */ 2376 const char *ieee80211_conn_mode_str(enum ieee80211_conn_mode mode); 2377 enum ieee80211_conn_bw_limit 2378 ieee80211_min_bw_limit_from_chandef(struct cfg80211_chan_def *chandef); 2379 int ieee80211_frame_duration(enum nl80211_band band, size_t len, 2380 int rate, int erp, int short_preamble); 2381 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, 2382 struct ieee80211_tx_queue_params *qparam, 2383 int ac); 2384 void ieee80211_clear_tpe(struct ieee80211_parsed_tpe *tpe); 2385 void ieee80211_set_wmm_default(struct ieee80211_link_data *link, 2386 bool bss_notify, bool enable_qos); 2387 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, 2388 struct sta_info *sta, struct sk_buff *skb); 2389 2390 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, 2391 struct sk_buff *skb, int tid, int link_id, 2392 enum nl80211_band band); 2393 2394 /* sta_out needs to be checked for ERR_PTR() before using */ 2395 int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata, 2396 struct sk_buff *skb, 2397 struct sta_info **sta_out); 2398 2399 static inline void 2400 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, 2401 struct sk_buff *skb, int tid, 2402 enum nl80211_band band) 2403 { 2404 rcu_read_lock(); 2405 __ieee80211_tx_skb_tid_band(sdata, skb, tid, -1, band); 2406 rcu_read_unlock(); 2407 } 2408 2409 void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata, 2410 struct sk_buff *skb, int tid, int link_id); 2411 2412 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, 2413 struct sk_buff *skb) 2414 { 2415 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */ 2416 ieee80211_tx_skb_tid(sdata, skb, 7, -1); 2417 } 2418 2419 /** 2420 * struct ieee80211_elems_parse_params - element parsing parameters 2421 * @mode: connection mode for parsing 2422 * @start: pointer to the elements 2423 * @len: length of the elements 2424 * @type: type of the frame the elements came from 2425 * (action, probe response, beacon, etc.) 2426 * @filter: bitmap of element IDs to filter out while calculating 2427 * the element CRC 2428 * @crc: CRC starting value 2429 * @bss: the BSS to parse this as, for multi-BSSID cases this can 2430 * represent a non-transmitting BSS in which case the data 2431 * for that non-transmitting BSS is returned 2432 * @link_id: the link ID to parse elements for, if a STA profile 2433 * is present in the multi-link element, or -1 to ignore; 2434 * note that the code currently assumes parsing an association 2435 * (or re-association) response frame if this is given 2436 * @from_ap: frame is received from an AP (currently used only 2437 * for EHT capabilities parsing) 2438 */ 2439 struct ieee80211_elems_parse_params { 2440 enum ieee80211_conn_mode mode; 2441 const u8 *start; 2442 size_t len; 2443 u8 type; 2444 u64 filter; 2445 u32 crc; 2446 struct cfg80211_bss *bss; 2447 int link_id; 2448 bool from_ap; 2449 }; 2450 2451 struct ieee802_11_elems * 2452 ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params); 2453 2454 static inline struct ieee802_11_elems * 2455 ieee802_11_parse_elems(const u8 *start, size_t len, u8 type, 2456 struct cfg80211_bss *bss) 2457 { 2458 struct ieee80211_elems_parse_params params = { 2459 .mode = IEEE80211_CONN_MODE_HIGHEST, 2460 .start = start, 2461 .len = len, 2462 .type = type, 2463 .bss = bss, 2464 .link_id = -1, 2465 }; 2466 2467 return ieee802_11_parse_elems_full(¶ms); 2468 } 2469 2470 extern const int ieee802_1d_to_ac[8]; 2471 2472 static inline int ieee80211_ac_from_tid(int tid) 2473 { 2474 return ieee802_1d_to_ac[tid & 7]; 2475 } 2476 2477 void ieee80211_dynamic_ps_enable_work(struct wiphy *wiphy, 2478 struct wiphy_work *work); 2479 void ieee80211_dynamic_ps_disable_work(struct wiphy *wiphy, 2480 struct wiphy_work *work); 2481 void ieee80211_dynamic_ps_timer(struct timer_list *t); 2482 void ieee80211_send_nullfunc(struct ieee80211_local *local, 2483 struct ieee80211_sub_if_data *sdata, 2484 bool powersave); 2485 void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local, 2486 struct ieee80211_sub_if_data *sdata); 2487 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata, 2488 struct ieee80211_hdr *hdr, bool ack, u16 tx_time); 2489 unsigned int 2490 ieee80211_get_vif_queues(struct ieee80211_local *local, 2491 struct ieee80211_sub_if_data *sdata); 2492 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, 2493 unsigned long queues, 2494 enum queue_stop_reason reason, 2495 bool refcounted); 2496 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, 2497 unsigned long queues, 2498 enum queue_stop_reason reason, 2499 bool refcounted); 2500 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, 2501 enum queue_stop_reason reason, 2502 bool refcounted); 2503 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, 2504 enum queue_stop_reason reason, 2505 bool refcounted); 2506 static inline void 2507 ieee80211_stop_vif_queues(struct ieee80211_local *local, 2508 struct ieee80211_sub_if_data *sdata, 2509 enum queue_stop_reason reason) 2510 { 2511 ieee80211_stop_queues_by_reason(&local->hw, 2512 ieee80211_get_vif_queues(local, sdata), 2513 reason, true); 2514 } 2515 2516 static inline void 2517 ieee80211_wake_vif_queues(struct ieee80211_local *local, 2518 struct ieee80211_sub_if_data *sdata, 2519 enum queue_stop_reason reason) 2520 { 2521 ieee80211_wake_queues_by_reason(&local->hw, 2522 ieee80211_get_vif_queues(local, sdata), 2523 reason, true); 2524 } 2525 static inline void 2526 ieee80211_stop_vif_queues_norefcount(struct ieee80211_local *local, 2527 struct ieee80211_sub_if_data *sdata, 2528 enum queue_stop_reason reason) 2529 { 2530 ieee80211_stop_queues_by_reason(&local->hw, 2531 ieee80211_get_vif_queues(local, sdata), 2532 reason, false); 2533 } 2534 static inline void 2535 ieee80211_wake_vif_queues_norefcount(struct ieee80211_local *local, 2536 struct ieee80211_sub_if_data *sdata, 2537 enum queue_stop_reason reason) 2538 { 2539 ieee80211_wake_queues_by_reason(&local->hw, 2540 ieee80211_get_vif_queues(local, sdata), 2541 reason, false); 2542 } 2543 void ieee80211_add_pending_skb(struct ieee80211_local *local, 2544 struct sk_buff *skb); 2545 void ieee80211_add_pending_skbs(struct ieee80211_local *local, 2546 struct sk_buff_head *skbs); 2547 void ieee80211_flush_queues(struct ieee80211_local *local, 2548 struct ieee80211_sub_if_data *sdata, bool drop); 2549 void __ieee80211_flush_queues(struct ieee80211_local *local, 2550 struct ieee80211_sub_if_data *sdata, 2551 unsigned int queues, bool drop); 2552 2553 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local) 2554 { 2555 /* 2556 * It's unsafe to try to do any work during reconfigure flow. 2557 * When the flow ends the work will be requeued. 2558 */ 2559 if (local->in_reconfig) 2560 return false; 2561 2562 /* 2563 * If quiescing is set, we are racing with __ieee80211_suspend. 2564 * __ieee80211_suspend flushes the workers after setting quiescing, 2565 * and we check quiescing / suspended before enqueuing new workers. 2566 * We should abort the worker to avoid the races below. 2567 */ 2568 if (local->quiescing) 2569 return false; 2570 2571 /* 2572 * We might already be suspended if the following scenario occurs: 2573 * __ieee80211_suspend Control path 2574 * 2575 * if (local->quiescing) 2576 * return; 2577 * local->quiescing = true; 2578 * flush_workqueue(); 2579 * queue_work(...); 2580 * local->suspended = true; 2581 * local->quiescing = false; 2582 * worker starts running... 2583 */ 2584 if (local->suspended) 2585 return false; 2586 2587 return true; 2588 } 2589 2590 int ieee80211_txq_setup_flows(struct ieee80211_local *local); 2591 void ieee80211_txq_set_params(struct ieee80211_local *local, int radio_idx); 2592 void ieee80211_txq_teardown_flows(struct ieee80211_local *local); 2593 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata, 2594 struct sta_info *sta, 2595 struct txq_info *txq, int tid); 2596 void ieee80211_txq_purge(struct ieee80211_local *local, 2597 struct txq_info *txqi); 2598 void ieee80211_purge_sta_txqs(struct sta_info *sta); 2599 void ieee80211_txq_remove_vlan(struct ieee80211_local *local, 2600 struct ieee80211_sub_if_data *sdata); 2601 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 2602 struct txq_info *txqi); 2603 void ieee80211_wake_txqs(struct tasklet_struct *t); 2604 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, 2605 u16 transaction, u16 auth_alg, u16 status, 2606 const u8 *extra, size_t extra_len, const u8 *bssid, 2607 const u8 *da, const u8 *key, u8 key_len, u8 key_idx, 2608 u32 tx_flags); 2609 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, 2610 const u8 *da, const u8 *bssid, 2611 u16 stype, u16 reason, 2612 bool send_frame, u8 *frame_buf); 2613 2614 enum { 2615 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0), 2616 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1), 2617 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2), 2618 }; 2619 2620 int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer, 2621 size_t buffer_len, 2622 struct ieee80211_scan_ies *ie_desc, 2623 const u8 *ie, size_t ie_len, 2624 u8 bands_used, u32 *rate_masks, 2625 struct cfg80211_chan_def *chandef, 2626 u32 flags); 2627 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, 2628 const u8 *src, const u8 *dst, 2629 u32 ratemask, 2630 struct ieee80211_channel *chan, 2631 const u8 *ssid, size_t ssid_len, 2632 const u8 *ie, size_t ie_len, 2633 u32 flags); 2634 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, 2635 struct ieee802_11_elems *elems, 2636 enum nl80211_band band, u32 *basic_rates); 2637 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2638 struct ieee80211_link_data *link, 2639 enum ieee80211_smps_mode smps_mode); 2640 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata, 2641 struct ieee80211_link_data *link); 2642 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata, 2643 int link_id); 2644 2645 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset); 2646 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 2647 u16 cap); 2648 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 2649 const struct cfg80211_chan_def *chandef, 2650 u16 prot_mode, bool rifs_mode); 2651 void ieee80211_ie_build_wide_bw_cs(u8 *pos, 2652 const struct cfg80211_chan_def *chandef); 2653 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2654 u32 cap); 2655 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2656 const struct cfg80211_chan_def *chandef); 2657 u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata); 2658 u8 *ieee80211_ie_build_he_oper(u8 *pos, const struct cfg80211_chan_def *chandef); 2659 u8 *ieee80211_ie_build_eht_oper(u8 *pos, const struct cfg80211_chan_def *chandef, 2660 const struct ieee80211_sta_eht_cap *eht_cap); 2661 int ieee80211_parse_bitrates(enum nl80211_chan_width width, 2662 const struct ieee80211_supported_band *sband, 2663 const u8 *srates, int srates_len, u32 *rates); 2664 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo); 2665 void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata, 2666 struct ieee80211_sta_s1g_cap *caps, 2667 struct sk_buff *skb); 2668 void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata, 2669 struct sk_buff *skb); 2670 2671 /* element building in SKBs */ 2672 int ieee80211_put_srates_elem(struct sk_buff *skb, 2673 const struct ieee80211_supported_band *sband, 2674 u32 basic_rates, u32 masked_rates, 2675 u8 element_id); 2676 int ieee80211_put_he_cap(struct sk_buff *skb, 2677 struct ieee80211_sub_if_data *sdata, 2678 const struct ieee80211_supported_band *sband, 2679 const struct ieee80211_conn_settings *conn); 2680 int ieee80211_put_he_6ghz_cap(struct sk_buff *skb, 2681 struct ieee80211_sub_if_data *sdata, 2682 enum ieee80211_smps_mode smps_mode); 2683 int ieee80211_put_eht_cap(struct sk_buff *skb, 2684 struct ieee80211_sub_if_data *sdata, 2685 const struct ieee80211_supported_band *sband, 2686 const struct ieee80211_conn_settings *conn); 2687 int ieee80211_put_reg_conn(struct sk_buff *skb, 2688 enum ieee80211_channel_flags flags); 2689 2690 /* channel management */ 2691 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper, 2692 struct cfg80211_chan_def *chandef); 2693 bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info, 2694 const struct ieee80211_vht_operation *oper, 2695 const struct ieee80211_ht_operation *htop, 2696 struct cfg80211_chan_def *chandef); 2697 void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation_info *info, 2698 struct cfg80211_chan_def *chandef); 2699 bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_local *local, 2700 const struct ieee80211_he_operation *he_oper, 2701 const struct ieee80211_eht_operation *eht_oper, 2702 struct cfg80211_chan_def *chandef); 2703 bool ieee80211_chandef_s1g_oper(struct ieee80211_local *local, 2704 const struct ieee80211_s1g_oper_ie *oper, 2705 struct cfg80211_chan_def *chandef); 2706 void ieee80211_chandef_downgrade(struct cfg80211_chan_def *chandef, 2707 struct ieee80211_conn_settings *conn); 2708 static inline void 2709 ieee80211_chanreq_downgrade(struct ieee80211_chan_req *chanreq, 2710 struct ieee80211_conn_settings *conn) 2711 { 2712 ieee80211_chandef_downgrade(&chanreq->oper, conn); 2713 if (WARN_ON(!conn)) 2714 return; 2715 if (conn->mode < IEEE80211_CONN_MODE_EHT) 2716 chanreq->ap.chan = NULL; 2717 } 2718 2719 bool ieee80211_chanreq_identical(const struct ieee80211_chan_req *a, 2720 const struct ieee80211_chan_req *b); 2721 2722 int __must_check 2723 _ieee80211_link_use_channel(struct ieee80211_link_data *link, 2724 const struct ieee80211_chan_req *req, 2725 enum ieee80211_chanctx_mode mode, 2726 bool assign_on_failure); 2727 2728 static inline int __must_check 2729 ieee80211_link_use_channel(struct ieee80211_link_data *link, 2730 const struct ieee80211_chan_req *req, 2731 enum ieee80211_chanctx_mode mode) 2732 { 2733 return _ieee80211_link_use_channel(link, req, mode, false); 2734 } 2735 2736 int __must_check 2737 ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link, 2738 const struct ieee80211_chan_req *req, 2739 enum ieee80211_chanctx_mode mode, 2740 bool radar_required); 2741 int __must_check 2742 ieee80211_link_use_reserved_context(struct ieee80211_link_data *link); 2743 void ieee80211_link_unreserve_chanctx(struct ieee80211_link_data *link); 2744 2745 int __must_check 2746 ieee80211_link_change_chanreq(struct ieee80211_link_data *link, 2747 const struct ieee80211_chan_req *req, 2748 u64 *changed); 2749 void __ieee80211_link_release_channel(struct ieee80211_link_data *link, 2750 bool skip_idle_recalc); 2751 void ieee80211_link_release_channel(struct ieee80211_link_data *link); 2752 void ieee80211_link_vlan_copy_chanctx(struct ieee80211_link_data *link); 2753 void ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link, 2754 bool clear); 2755 int ieee80211_chanctx_refcount(struct ieee80211_local *local, 2756 struct ieee80211_chanctx *ctx); 2757 2758 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local, 2759 struct ieee80211_chanctx *chanctx); 2760 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local, 2761 struct ieee80211_chanctx *ctx); 2762 bool ieee80211_is_radar_required(struct ieee80211_local *local, 2763 struct cfg80211_scan_request *req); 2764 bool ieee80211_is_radio_idx_in_scan_req(struct wiphy *wiphy, 2765 struct cfg80211_scan_request *scan_req, 2766 int radio_idx); 2767 2768 void ieee80211_dfs_cac_timer_work(struct wiphy *wiphy, struct wiphy_work *work); 2769 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local, 2770 struct ieee80211_chanctx *chanctx); 2771 void ieee80211_dfs_radar_detected_work(struct wiphy *wiphy, 2772 struct wiphy_work *work); 2773 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, 2774 struct cfg80211_csa_settings *csa_settings); 2775 void ieee80211_recalc_sb_count(struct ieee80211_sub_if_data *sdata, u64 tsf); 2776 void ieee80211_recalc_dtim(struct ieee80211_sub_if_data *sdata, u64 tsf); 2777 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, 2778 const struct cfg80211_chan_def *chandef, 2779 enum ieee80211_chanctx_mode chanmode, 2780 u8 radar_detect, int radio_idx); 2781 int ieee80211_max_num_channels(struct ieee80211_local *local, int radio_idx); 2782 u32 ieee80211_get_radio_mask(struct wiphy *wiphy, struct net_device *dev); 2783 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local, 2784 struct ieee80211_chanctx *ctx); 2785 2786 /* TDLS */ 2787 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 2788 const u8 *peer, int link_id, 2789 u8 action_code, u8 dialog_token, u16 status_code, 2790 u32 peer_capability, bool initiator, 2791 const u8 *extra_ies, size_t extra_ies_len); 2792 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 2793 const u8 *peer, enum nl80211_tdls_operation oper); 2794 void ieee80211_tdls_peer_del_work(struct wiphy *wiphy, struct wiphy_work *wk); 2795 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev, 2796 const u8 *addr, u8 oper_class, 2797 struct cfg80211_chan_def *chandef); 2798 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy, 2799 struct net_device *dev, 2800 const u8 *addr); 2801 void ieee80211_teardown_tdls_peers(struct ieee80211_link_data *link); 2802 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata, 2803 const u8 *peer, u16 reason); 2804 void 2805 ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata, 2806 struct sk_buff *skb); 2807 2808 2809 const char *ieee80211_get_reason_code_string(u16 reason_code); 2810 u16 ieee80211_encode_usf(int val); 2811 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, 2812 enum nl80211_iftype type); 2813 2814 extern const struct ethtool_ops ieee80211_ethtool_ops; 2815 2816 u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw, 2817 struct ieee80211_vif *vif, 2818 struct ieee80211_sta *pubsta, 2819 int len, bool ampdu); 2820 #ifdef CONFIG_MAC80211_NOINLINE 2821 #define debug_noinline noinline 2822 #else 2823 #define debug_noinline 2824 #endif 2825 2826 void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache); 2827 void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache); 2828 2829 u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata); 2830 2831 void 2832 ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata, 2833 struct ieee80211_supported_band *sband, 2834 const u8 *he_cap_ie, u8 he_cap_len, 2835 const struct ieee80211_eht_cap_elem *eht_cap_ie_elem, 2836 u8 eht_cap_len, 2837 struct link_sta_info *link_sta); 2838 void ieee80211_process_neg_ttlm_req(struct ieee80211_sub_if_data *sdata, 2839 struct ieee80211_mgmt *mgmt, size_t len); 2840 void ieee80211_process_neg_ttlm_res(struct ieee80211_sub_if_data *sdata, 2841 struct ieee80211_mgmt *mgmt, size_t len); 2842 int ieee80211_req_neg_ttlm(struct ieee80211_sub_if_data *sdata, 2843 struct cfg80211_ttlm_params *params); 2844 void ieee80211_process_ttlm_teardown(struct ieee80211_sub_if_data *sdata); 2845 2846 void ieee80211_check_wbrf_support(struct ieee80211_local *local); 2847 void ieee80211_add_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef); 2848 void ieee80211_remove_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef); 2849 int ieee80211_mgd_set_epcs(struct ieee80211_sub_if_data *sdata, bool enable); 2850 void ieee80211_process_epcs_ena_resp(struct ieee80211_sub_if_data *sdata, 2851 struct ieee80211_mgmt *mgmt, size_t len); 2852 void ieee80211_process_epcs_teardown(struct ieee80211_sub_if_data *sdata, 2853 struct ieee80211_mgmt *mgmt, size_t len); 2854 2855 int ieee80211_mgd_assoc_ml_reconf(struct ieee80211_sub_if_data *sdata, 2856 struct cfg80211_ml_reconf_req *req); 2857 2858 void ieee80211_process_ml_reconf_resp(struct ieee80211_sub_if_data *sdata, 2859 struct ieee80211_mgmt *mgmt, size_t len); 2860 void ieee80211_stop_mbssid(struct ieee80211_sub_if_data *sdata); 2861 2862 #if IS_ENABLED(CONFIG_MAC80211_KUNIT_TEST) 2863 #define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym) EXPORT_SYMBOL_IF_KUNIT(sym) 2864 #define VISIBLE_IF_MAC80211_KUNIT 2865 ieee80211_rx_result 2866 ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx); 2867 int ieee80211_calc_chandef_subchan_offset(const struct cfg80211_chan_def *ap, 2868 u8 n_partial_subchans); 2869 void ieee80211_rearrange_tpe_psd(struct ieee80211_parsed_tpe_psd *psd, 2870 const struct cfg80211_chan_def *ap, 2871 const struct cfg80211_chan_def *used); 2872 struct ieee802_11_elems * 2873 ieee80211_determine_chan_mode(struct ieee80211_sub_if_data *sdata, 2874 struct ieee80211_conn_settings *conn, 2875 struct cfg80211_bss *cbss, int link_id, 2876 struct ieee80211_chan_req *chanreq, 2877 struct cfg80211_chan_def *ap_chandef, 2878 unsigned long *userspace_selectors); 2879 #else 2880 #define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym) 2881 #define VISIBLE_IF_MAC80211_KUNIT static 2882 #endif 2883 2884 #endif /* IEEE80211_I_H */ 2885