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) 2018-2026 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 u8 link_addrs[3 * ETH_ALEN]; 261 }; 262 263 struct ieee80211_csa_settings { 264 const u16 *counter_offsets_beacon; 265 const u16 *counter_offsets_presp; 266 267 int n_counter_offsets_beacon; 268 int n_counter_offsets_presp; 269 270 u8 count; 271 }; 272 273 struct ieee80211_color_change_settings { 274 u16 counter_offset_beacon; 275 u16 counter_offset_presp; 276 u8 count; 277 }; 278 279 struct beacon_data { 280 u8 *head, *tail; 281 int head_len, tail_len; 282 struct ieee80211_meshconf_ie *meshconf; 283 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM]; 284 u8 cntdwn_current_counter; 285 struct cfg80211_mbssid_elems *mbssid_ies; 286 struct cfg80211_rnr_elems *rnr_ies; 287 struct rcu_head rcu_head; 288 }; 289 290 struct probe_resp { 291 struct rcu_head rcu_head; 292 int len; 293 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM]; 294 u8 data[]; 295 }; 296 297 struct fils_discovery_data { 298 struct rcu_head rcu_head; 299 int len; 300 u8 data[]; 301 }; 302 303 struct unsol_bcast_probe_resp_data { 304 struct rcu_head rcu_head; 305 int len; 306 u8 data[]; 307 }; 308 309 struct s1g_short_beacon_data { 310 struct rcu_head rcu_head; 311 u8 *short_head; 312 u8 *short_tail; 313 int short_head_len; 314 int short_tail_len; 315 }; 316 317 struct ps_data { 318 /* yes, this looks ugly, but guarantees that we can later use 319 * bitmap_empty :) 320 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */ 321 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)] 322 __aligned(__alignof__(unsigned long)); 323 struct sk_buff_head bc_buf; 324 atomic_t num_sta_ps; /* number of stations in PS mode */ 325 int dtim_count; 326 bool dtim_bc_mc; 327 int sb_count; /* num short beacons til next long beacon */ 328 }; 329 330 struct ieee80211_if_ap { 331 struct list_head vlans; /* write-protected with RTNL and local->mtx */ 332 333 struct ps_data ps; 334 atomic_t num_mcast_sta; /* number of stations receiving multicast */ 335 336 bool multicast_to_unicast; 337 bool active; 338 }; 339 340 struct ieee80211_if_vlan { 341 struct list_head list; /* write-protected with RTNL and local->mtx */ 342 343 /* used for all tx if the VLAN is configured to 4-addr mode */ 344 struct sta_info __rcu *sta; 345 atomic_t num_mcast_sta; /* number of stations receiving multicast */ 346 }; 347 348 struct mesh_stats { 349 __u32 fwded_mcast; /* Mesh forwarded multicast frames */ 350 __u32 fwded_unicast; /* Mesh forwarded unicast frames */ 351 __u32 fwded_frames; /* Mesh total forwarded frames */ 352 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/ 353 __u32 dropped_frames_no_route; /* Not transmitted, no route found */ 354 }; 355 356 #define PREQ_Q_F_START 0x1 357 #define PREQ_Q_F_REFRESH 0x2 358 struct mesh_preq_queue { 359 struct list_head list; 360 u8 dst[ETH_ALEN]; 361 u8 flags; 362 }; 363 364 struct ieee80211_roc_work { 365 struct list_head list; 366 367 struct ieee80211_sub_if_data *sdata; 368 369 struct ieee80211_channel *chan; 370 371 bool started, abort, hw_begun, notified; 372 bool on_channel; 373 374 unsigned long start_time; 375 376 u32 duration, req_duration; 377 struct sk_buff *frame; 378 u64 cookie, mgmt_tx_cookie; 379 enum ieee80211_roc_type type; 380 }; 381 382 /* flags used in struct ieee80211_if_managed.flags */ 383 enum ieee80211_sta_flags { 384 IEEE80211_STA_CONNECTION_POLL = BIT(1), 385 IEEE80211_STA_CONTROL_PORT = BIT(2), 386 IEEE80211_STA_MFP_ENABLED = BIT(6), 387 IEEE80211_STA_UAPSD_ENABLED = BIT(7), 388 IEEE80211_STA_NULLFUNC_ACKED = BIT(8), 389 IEEE80211_STA_ENABLE_RRM = BIT(15), 390 }; 391 392 enum ieee80211_conn_mode { 393 IEEE80211_CONN_MODE_S1G, 394 IEEE80211_CONN_MODE_LEGACY, 395 IEEE80211_CONN_MODE_HT, 396 IEEE80211_CONN_MODE_VHT, 397 IEEE80211_CONN_MODE_HE, 398 IEEE80211_CONN_MODE_EHT, 399 IEEE80211_CONN_MODE_UHR, 400 }; 401 402 #define IEEE80211_CONN_MODE_HIGHEST IEEE80211_CONN_MODE_UHR 403 404 enum ieee80211_conn_bw_limit { 405 IEEE80211_CONN_BW_LIMIT_20, 406 IEEE80211_CONN_BW_LIMIT_40, 407 IEEE80211_CONN_BW_LIMIT_80, 408 IEEE80211_CONN_BW_LIMIT_160, /* also 80+80 */ 409 IEEE80211_CONN_BW_LIMIT_320, 410 }; 411 412 struct ieee80211_conn_settings { 413 enum ieee80211_conn_mode mode; 414 enum ieee80211_conn_bw_limit bw_limit; 415 }; 416 417 extern const struct ieee80211_conn_settings ieee80211_conn_settings_unlimited; 418 419 struct ieee80211_mgd_auth_data { 420 struct cfg80211_bss *bss; 421 unsigned long timeout; 422 int tries; 423 u16 algorithm, expected_transaction; 424 425 unsigned long userspace_selectors[BITS_TO_LONGS(128)]; 426 427 u8 key[WLAN_KEY_LEN_WEP104]; 428 u8 key_len, key_idx; 429 bool done, waiting; 430 bool peer_confirmed; 431 bool timeout_started; 432 int link_id; 433 434 u8 ap_addr[ETH_ALEN] __aligned(2); 435 436 u16 trans, status; 437 size_t data_len; 438 u8 data[]; 439 }; 440 441 struct ieee80211_mgd_assoc_data { 442 struct { 443 struct cfg80211_bss *bss; 444 445 u8 addr[ETH_ALEN] __aligned(2); 446 447 u8 ap_ht_param; 448 449 struct ieee80211_vht_cap ap_vht_cap; 450 451 size_t elems_len; 452 u8 *elems; /* pointing to inside ie[] below */ 453 454 struct ieee80211_conn_settings conn; 455 456 u16 status; 457 } link[IEEE80211_MLD_MAX_NUM_LINKS]; 458 459 u8 ap_addr[ETH_ALEN] __aligned(2); 460 461 /* this is for a workaround, so we use it only for non-MLO */ 462 const u8 *supp_rates; 463 u8 supp_rates_len; 464 465 unsigned long timeout; 466 int tries; 467 468 u8 prev_ap_addr[ETH_ALEN]; 469 u8 ssid[IEEE80211_MAX_SSID_LEN]; 470 u8 ssid_len; 471 bool wmm, uapsd; 472 bool need_beacon; 473 bool synced; 474 bool timeout_started; 475 bool comeback; /* whether the AP has requested association comeback */ 476 bool s1g; 477 bool spp_amsdu; 478 479 s8 assoc_link_id; 480 481 __le16 ext_mld_capa_ops; 482 483 u8 fils_nonces[2 * FILS_NONCE_LEN]; 484 u8 fils_kek[FILS_MAX_KEK_LEN]; 485 size_t fils_kek_len; 486 487 size_t ie_len; 488 u8 *ie_pos; /* used to fill ie[] with link[].elems */ 489 u8 ie[]; 490 }; 491 492 struct ieee80211_sta_tx_tspec { 493 /* timestamp of the first packet in the time slice */ 494 unsigned long time_slice_start; 495 496 u32 admitted_time; /* in usecs, unlike over the air */ 497 u8 tsid; 498 s8 up; /* signed to be able to invalidate with -1 during teardown */ 499 500 /* consumed TX time in microseconds in the time slice */ 501 u32 consumed_tx_time; 502 enum { 503 TX_TSPEC_ACTION_NONE = 0, 504 TX_TSPEC_ACTION_DOWNGRADE, 505 TX_TSPEC_ACTION_STOP_DOWNGRADE, 506 } action; 507 bool downgraded; 508 }; 509 510 /* Advertised TID-to-link mapping info */ 511 struct ieee80211_adv_ttlm_info { 512 /* time in TUs at which the new mapping is established, or 0 if there is 513 * no planned advertised TID-to-link mapping 514 */ 515 u16 switch_time; 516 u32 duration; /* duration of the planned T2L map in TUs */ 517 u16 map; /* map of usable links for all TIDs */ 518 bool active; /* whether the advertised mapping is active or not */ 519 }; 520 521 DECLARE_EWMA(beacon_signal, 4, 4) 522 523 struct ieee80211_if_managed { 524 struct timer_list timer; 525 struct timer_list conn_mon_timer; 526 struct timer_list bcn_mon_timer; 527 struct wiphy_work monitor_work; 528 struct wiphy_work beacon_connection_loss_work; 529 struct wiphy_work csa_connection_drop_work; 530 531 unsigned long beacon_timeout; 532 unsigned long probe_timeout; 533 int probe_send_count; 534 bool nullfunc_failed; 535 u8 connection_loss:1, 536 driver_disconnect:1, 537 reconnect:1, 538 associated:1; 539 540 struct ieee80211_mgd_auth_data *auth_data; 541 struct ieee80211_mgd_assoc_data *assoc_data; 542 543 unsigned long userspace_selectors[BITS_TO_LONGS(128)]; 544 545 bool powersave; /* powersave requested for this iface */ 546 bool broken_ap; /* AP is broken -- turn off powersave */ 547 548 unsigned int flags; 549 550 u16 mcast_seq_last; 551 552 bool status_acked; 553 bool status_received; 554 __le16 status_fc; 555 556 enum { 557 IEEE80211_MFP_DISABLED, 558 IEEE80211_MFP_OPTIONAL, 559 IEEE80211_MFP_REQUIRED 560 } mfp; /* management frame protection */ 561 562 /* 563 * Bitmask of enabled u-apsd queues, 564 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association 565 * to take effect. 566 */ 567 unsigned int uapsd_queues; 568 569 /* 570 * Maximum number of buffered frames AP can deliver during a 571 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar. 572 * Needs a new association to take effect. 573 */ 574 unsigned int uapsd_max_sp_len; 575 576 u8 use_4addr; 577 578 /* 579 * State variables for keeping track of RSSI of the AP currently 580 * connected to and informing driver when RSSI has gone 581 * below/above a certain threshold. 582 */ 583 int rssi_min_thold, rssi_max_thold; 584 585 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ 586 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ 587 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */ 588 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */ 589 struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */ 590 struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */ 591 592 /* TDLS support */ 593 u8 tdls_peer[ETH_ALEN] __aligned(2); 594 struct wiphy_delayed_work tdls_peer_del_work; 595 struct sk_buff *orig_teardown_skb; /* The original teardown skb */ 596 struct sk_buff *teardown_skb; /* A copy to send through the AP */ 597 spinlock_t teardown_lock; /* To lock changing teardown_skb */ 598 bool tdls_wider_bw_prohibited; 599 600 /* WMM-AC TSPEC support */ 601 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS]; 602 /* Use a separate work struct so that we can do something here 603 * while the sdata->work is flushing the queues, for example. 604 * otherwise, in scenarios where we hardly get any traffic out 605 * on the BE queue, but there's a lot of VO traffic, we might 606 * get stuck in a downgraded situation and flush takes forever. 607 */ 608 struct wiphy_delayed_work tx_tspec_wk; 609 610 /* Information elements from the last transmitted (Re)Association 611 * Request frame. 612 */ 613 u8 *assoc_req_ies; 614 size_t assoc_req_ies_len; 615 616 struct wiphy_hrtimer_work ml_reconf_work; 617 u16 removed_links; 618 619 /* TID-to-link mapping support */ 620 struct wiphy_hrtimer_work ttlm_work; 621 struct ieee80211_adv_ttlm_info ttlm_info; 622 struct wiphy_work teardown_ttlm_work; 623 624 /* dialog token enumerator for neg TTLM request */ 625 u8 dialog_token_alloc; 626 struct wiphy_delayed_work neg_ttlm_timeout_work; 627 628 /* Locally initiated multi-link reconfiguration */ 629 struct { 630 struct ieee80211_mgd_assoc_data *add_links_data; 631 struct wiphy_delayed_work wk; 632 u16 removed_links; 633 u16 added_links; 634 u8 dialog_token; 635 } reconf; 636 637 /* Support for epcs */ 638 struct { 639 bool enabled; 640 u8 dialog_token; 641 } epcs; 642 }; 643 644 struct ieee80211_if_ibss { 645 struct timer_list timer; 646 struct wiphy_work csa_connection_drop_work; 647 648 unsigned long last_scan_completed; 649 650 u32 basic_rates; 651 652 bool fixed_bssid; 653 bool fixed_channel; 654 bool privacy; 655 656 bool control_port; 657 bool userspace_handles_dfs; 658 659 u8 bssid[ETH_ALEN] __aligned(2); 660 u8 ssid[IEEE80211_MAX_SSID_LEN]; 661 u8 ssid_len, ie_len; 662 u8 *ie; 663 struct cfg80211_chan_def chandef; 664 665 unsigned long ibss_join_req; 666 /* probe response/beacon for IBSS */ 667 struct beacon_data __rcu *presp; 668 669 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ 670 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ 671 672 spinlock_t incomplete_lock; 673 struct list_head incomplete_stations; 674 675 enum { 676 IEEE80211_IBSS_MLME_SEARCH, 677 IEEE80211_IBSS_MLME_JOINED, 678 } state; 679 }; 680 681 /** 682 * struct ieee80211_if_ocb - OCB mode state 683 * 684 * @housekeeping_timer: timer for periodic invocation of a housekeeping task 685 * @wrkq_flags: OCB deferred task action 686 * @incomplete_lock: delayed STA insertion lock 687 * @incomplete_stations: list of STAs waiting for delayed insertion 688 * @joined: indication if the interface is connected to an OCB network 689 */ 690 struct ieee80211_if_ocb { 691 struct timer_list housekeeping_timer; 692 unsigned long wrkq_flags; 693 694 spinlock_t incomplete_lock; 695 struct list_head incomplete_stations; 696 697 bool joined; 698 }; 699 700 /** 701 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface 702 * 703 * these declarations define the interface, which enables 704 * vendor-specific mesh synchronization 705 * 706 * @rx_bcn_presp: beacon/probe response was received 707 * @adjust_tsf: TSF adjustment method 708 */ 709 struct ieee80211_mesh_sync_ops { 710 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, u16 stype, 711 struct ieee80211_mgmt *mgmt, unsigned int len, 712 const struct ieee80211_meshconf_ie *mesh_cfg, 713 struct ieee80211_rx_status *rx_status); 714 715 /* should be called with beacon_data under RCU read lock */ 716 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata, 717 struct beacon_data *beacon); 718 /* add other framework functions here */ 719 }; 720 721 struct mesh_csa_settings { 722 struct rcu_head rcu_head; 723 struct cfg80211_csa_settings settings; 724 }; 725 726 /** 727 * struct mesh_table - mesh hash table 728 * 729 * @known_gates: list of known mesh gates and their mpaths by the station. The 730 * gate's mpath may or may not be resolved and active. 731 * @gates_lock: protects updates to known_gates 732 * @rhead: the rhashtable containing struct mesh_paths, keyed by dest addr 733 * @walk_head: linked list containing all mesh_path objects 734 * @walk_lock: lock protecting walk_head 735 * @entries: number of entries in the table 736 */ 737 struct mesh_table { 738 struct hlist_head known_gates; 739 spinlock_t gates_lock; 740 struct rhashtable rhead; 741 struct hlist_head walk_head; 742 spinlock_t walk_lock; 743 atomic_t entries; /* Up to MAX_MESH_NEIGHBOURS */ 744 }; 745 746 /** 747 * struct mesh_tx_cache - mesh fast xmit header cache 748 * 749 * @rht: hash table containing struct ieee80211_mesh_fast_tx, using skb DA as key 750 * @walk_head: linked list containing all ieee80211_mesh_fast_tx objects 751 * @walk_lock: lock protecting walk_head and rht 752 */ 753 struct mesh_tx_cache { 754 struct rhashtable rht; 755 struct hlist_head walk_head; 756 spinlock_t walk_lock; 757 }; 758 759 struct ieee80211_if_mesh { 760 struct timer_list housekeeping_timer; 761 struct timer_list mesh_path_timer; 762 struct timer_list mesh_path_root_timer; 763 764 unsigned long wrkq_flags; 765 unsigned long mbss_changed[64 / BITS_PER_LONG]; 766 767 bool userspace_handles_dfs; 768 769 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN]; 770 size_t mesh_id_len; 771 /* Active Path Selection Protocol Identifier */ 772 u8 mesh_pp_id; 773 /* Active Path Selection Metric Identifier */ 774 u8 mesh_pm_id; 775 /* Congestion Control Mode Identifier */ 776 u8 mesh_cc_id; 777 /* Synchronization Protocol Identifier */ 778 u8 mesh_sp_id; 779 /* Authentication Protocol Identifier */ 780 u8 mesh_auth_id; 781 /* Local mesh Sequence Number */ 782 u32 sn; 783 /* Last used PREQ ID */ 784 u32 preq_id; 785 atomic_t mpaths; 786 /* Timestamp of last SN update */ 787 unsigned long last_sn_update; 788 /* Time when it's ok to send next PERR */ 789 unsigned long next_perr; 790 /* Timestamp of last PREQ sent */ 791 unsigned long last_preq; 792 struct mesh_rmc *rmc; 793 spinlock_t mesh_preq_queue_lock; 794 struct mesh_preq_queue preq_queue; 795 int preq_queue_len; 796 struct mesh_stats mshstats; 797 struct mesh_config mshcfg; 798 atomic_t estab_plinks; 799 atomic_t mesh_seqnum; 800 bool accepting_plinks; 801 int num_gates; 802 struct beacon_data __rcu *beacon; 803 const u8 *ie; 804 u8 ie_len; 805 enum { 806 IEEE80211_MESH_SEC_NONE = 0x0, 807 IEEE80211_MESH_SEC_AUTHED = 0x1, 808 IEEE80211_MESH_SEC_SECURED = 0x2, 809 } security; 810 bool user_mpm; 811 /* Extensible Synchronization Framework */ 812 const struct ieee80211_mesh_sync_ops *sync_ops; 813 s64 sync_offset_clockdrift_max; 814 spinlock_t sync_offset_lock; 815 /* mesh power save */ 816 enum nl80211_mesh_power_mode nonpeer_pm; 817 int ps_peers_light_sleep; 818 int ps_peers_deep_sleep; 819 struct ps_data ps; 820 /* Channel Switching Support */ 821 struct mesh_csa_settings __rcu *csa; 822 enum { 823 IEEE80211_MESH_CSA_ROLE_NONE, 824 IEEE80211_MESH_CSA_ROLE_INIT, 825 IEEE80211_MESH_CSA_ROLE_REPEATER, 826 } csa_role; 827 u8 chsw_ttl; 828 u16 pre_value; 829 830 /* offset from skb->data while building IE */ 831 int meshconf_offset; 832 833 struct mesh_table mesh_paths; 834 struct mesh_table mpp_paths; /* Store paths for MPP&MAP */ 835 int mesh_paths_generation; 836 int mpp_paths_generation; 837 struct mesh_tx_cache tx_cache; 838 }; 839 840 #ifdef CONFIG_MAC80211_MESH 841 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ 842 do { (msh)->mshstats.name++; } while (0) 843 #else 844 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ 845 do { } while (0) 846 #endif 847 848 /** 849 * enum ieee80211_sub_if_data_flags - virtual interface flags 850 * 851 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets 852 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between 853 * associated stations and deliver multicast frames both 854 * back to wireless media and to the local net stack. 855 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume. 856 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver 857 * @IEEE80211_SDATA_DISCONNECT_HW_RESTART: Disconnect after hardware restart 858 * recovery 859 */ 860 enum ieee80211_sub_if_data_flags { 861 IEEE80211_SDATA_ALLMULTI = BIT(0), 862 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3), 863 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4), 864 IEEE80211_SDATA_IN_DRIVER = BIT(5), 865 IEEE80211_SDATA_DISCONNECT_HW_RESTART = BIT(6), 866 }; 867 868 /** 869 * enum ieee80211_sdata_state_bits - virtual interface state bits 870 * @SDATA_STATE_RUNNING: virtual interface is up & running; this 871 * mirrors netif_running() but is separate for interface type 872 * change handling while the interface is up 873 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel 874 * mode, so queues are stopped 875 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due 876 * to offchannel, reset when offchannel returns 877 */ 878 enum ieee80211_sdata_state_bits { 879 SDATA_STATE_RUNNING, 880 SDATA_STATE_OFFCHANNEL, 881 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, 882 }; 883 884 /** 885 * enum ieee80211_chanctx_mode - channel context configuration mode 886 * 887 * @IEEE80211_CHANCTX_SHARED: channel context may be used by 888 * multiple interfaces 889 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used 890 * only by a single interface. This can be used for example for 891 * non-fixed channel IBSS. 892 */ 893 enum ieee80211_chanctx_mode { 894 IEEE80211_CHANCTX_SHARED, 895 IEEE80211_CHANCTX_EXCLUSIVE 896 }; 897 898 /** 899 * enum ieee80211_chanctx_replace_state - channel context replacement state 900 * 901 * This is used for channel context in-place reservations that require channel 902 * context switch/swap. 903 * 904 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place 905 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced 906 * by a (not yet registered) channel context pointed by %replace_ctx. 907 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context 908 * replaces an existing channel context pointed to by %replace_ctx. 909 */ 910 enum ieee80211_chanctx_replace_state { 911 IEEE80211_CHANCTX_REPLACE_NONE, 912 IEEE80211_CHANCTX_WILL_BE_REPLACED, 913 IEEE80211_CHANCTX_REPLACES_OTHER, 914 }; 915 916 struct ieee80211_chanctx { 917 struct list_head list; 918 struct rcu_head rcu_head; 919 920 enum ieee80211_chanctx_replace_state replace_state; 921 struct ieee80211_chanctx *replace_ctx; 922 923 enum ieee80211_chanctx_mode mode; 924 bool driver_present; 925 926 /* temporary data for search algorithm etc. */ 927 struct ieee80211_chan_req req; 928 929 bool radar_detected; 930 931 /* This chanctx is in process of getting used */ 932 bool will_be_used; 933 934 /* MUST be last - ends in a flexible-array member. */ 935 struct ieee80211_chanctx_conf conf; 936 }; 937 938 struct mac80211_qos_map { 939 struct cfg80211_qos_map qos_map; 940 struct rcu_head rcu_head; 941 }; 942 943 enum txq_info_flags { 944 IEEE80211_TXQ_STOP, 945 IEEE80211_TXQ_AMPDU, 946 IEEE80211_TXQ_NO_AMSDU, 947 IEEE80211_TXQ_DIRTY, 948 }; 949 950 /** 951 * struct txq_info - per tid queue 952 * 953 * @tin: contains packets split into multiple flows 954 * @def_cvars: codel vars for the @tin's default_flow 955 * @cstats: code statistics for this queue 956 * @frags: used to keep fragments created after dequeue 957 * @schedule_order: used with ieee80211_local->active_txqs 958 * @schedule_round: counter to prevent infinite loops on TXQ scheduling 959 * @flags: TXQ flags from &enum txq_info_flags 960 * @txq: the driver visible part 961 */ 962 struct txq_info { 963 struct fq_tin tin; 964 struct codel_vars def_cvars; 965 struct codel_stats cstats; 966 967 u16 schedule_round; 968 struct list_head schedule_order; 969 970 struct sk_buff_head frags; 971 972 unsigned long flags; 973 974 /* keep last! */ 975 struct ieee80211_txq txq; 976 }; 977 978 struct ieee80211_if_mntr { 979 u32 flags; 980 u8 mu_follow_addr[ETH_ALEN] __aligned(2); 981 982 struct list_head list; 983 }; 984 985 /** 986 * struct ieee80211_if_nan - NAN state 987 * 988 * @conf: current NAN configuration 989 * @started: true iff NAN is started 990 * @de: Discovery Engine state (only valid if !WIPHY_NAN_FLAGS_USERSPACE_DE) 991 * @de.func_lock: lock for @de.function_inst_ids 992 * @de.function_inst_ids: a bitmap of available instance_id's 993 * @removed_channels: bitmap of channels that should be removed from the NAN 994 * schedule once the deferred schedule update is completed. 995 */ 996 struct ieee80211_if_nan { 997 struct cfg80211_nan_conf conf; 998 bool started; 999 1000 struct { 1001 /* protects function_inst_ids */ 1002 spinlock_t func_lock; 1003 struct idr function_inst_ids; 1004 } de; 1005 1006 DECLARE_BITMAP(removed_channels, IEEE80211_NAN_MAX_CHANNELS); 1007 }; 1008 1009 /** 1010 * struct ieee80211_if_nan_data - NAN data path state 1011 * 1012 * @nmi: pointer to the NAN management interface sdata. Used for data path, 1013 * hence RCU. 1014 */ 1015 struct ieee80211_if_nan_data { 1016 struct ieee80211_sub_if_data __rcu *nmi; 1017 }; 1018 1019 struct ieee80211_link_data_managed { 1020 u8 bssid[ETH_ALEN] __aligned(2); 1021 1022 u8 dtim_period; 1023 enum ieee80211_smps_mode req_smps, /* requested smps mode */ 1024 driver_smps_mode; /* smps mode request */ 1025 1026 struct ieee80211_conn_settings conn; 1027 1028 s16 p2p_noa_index; 1029 1030 bool tdls_chan_switch_prohibited; 1031 1032 bool have_beacon; 1033 bool tracking_signal_avg; 1034 bool disable_wmm_tracking; 1035 bool operating_11g_mode; 1036 1037 struct { 1038 struct wiphy_hrtimer_work switch_work; 1039 struct cfg80211_chan_def ap_chandef; 1040 struct ieee80211_parsed_tpe tpe; 1041 ktime_t time; 1042 bool waiting_bcn; 1043 bool ignored_same_chan; 1044 bool blocked_tx; 1045 } csa; 1046 1047 struct wiphy_work request_smps_work; 1048 /* used to reconfigure hardware SM PS */ 1049 struct wiphy_work recalc_smps; 1050 1051 bool beacon_crc_valid; 1052 u32 beacon_crc; 1053 struct ewma_beacon_signal ave_beacon_signal; 1054 int last_ave_beacon_signal; 1055 1056 /* 1057 * Number of Beacon frames used in ave_beacon_signal. This can be used 1058 * to avoid generating less reliable cqm events that would be based 1059 * only on couple of received frames. 1060 */ 1061 unsigned int count_beacon_signal; 1062 1063 /* Number of times beacon loss was invoked. */ 1064 unsigned int beacon_loss_count; 1065 1066 /* 1067 * Last Beacon frame signal strength average (ave_beacon_signal / 16) 1068 * that triggered a cqm event. 0 indicates that no event has been 1069 * generated for the current association. 1070 */ 1071 int last_cqm_event_signal; 1072 1073 int wmm_last_param_set; 1074 int mu_edca_last_param_set; 1075 }; 1076 1077 struct ieee80211_link_data_ap { 1078 struct beacon_data __rcu *beacon; 1079 struct probe_resp __rcu *probe_resp; 1080 struct fils_discovery_data __rcu *fils_discovery; 1081 struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp; 1082 struct s1g_short_beacon_data __rcu *s1g_short_beacon; 1083 1084 /* to be used after channel switch. */ 1085 struct cfg80211_beacon_data *next_beacon; 1086 }; 1087 1088 struct ieee80211_link_data { 1089 struct ieee80211_sub_if_data *sdata; 1090 unsigned int link_id; 1091 1092 /* multicast keys only */ 1093 struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS + 1094 NUM_DEFAULT_MGMT_KEYS + 1095 NUM_DEFAULT_BEACON_KEYS]; 1096 struct ieee80211_key __rcu *default_multicast_key; 1097 struct ieee80211_key __rcu *default_mgmt_key; 1098 struct ieee80211_key __rcu *default_beacon_key; 1099 1100 1101 bool operating_11g_mode; 1102 1103 struct { 1104 struct wiphy_work finalize_work; 1105 struct ieee80211_chan_req chanreq; 1106 } csa; 1107 1108 struct wiphy_work color_change_finalize_work; 1109 struct wiphy_delayed_work color_collision_detect_work; 1110 u64 color_bitmap; 1111 1112 /* context reservation -- protected with wiphy mutex */ 1113 struct ieee80211_chanctx *reserved_chanctx; 1114 struct ieee80211_chan_req reserved; 1115 bool reserved_radar_required; 1116 bool reserved_ready; 1117 1118 u8 needed_rx_chains; 1119 enum ieee80211_smps_mode smps_mode; 1120 1121 int user_power_level; /* in dBm */ 1122 int ap_power_level; /* in dBm */ 1123 1124 bool radar_required; 1125 struct wiphy_hrtimer_work dfs_cac_timer_work; 1126 1127 union { 1128 struct ieee80211_link_data_managed mgd; 1129 struct ieee80211_link_data_ap ap; 1130 } u; 1131 1132 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS]; 1133 1134 struct ieee80211_bss_conf *conf; 1135 1136 #ifdef CONFIG_MAC80211_DEBUGFS 1137 struct dentry *debugfs_dir; 1138 #endif 1139 }; 1140 1141 struct ieee80211_sub_if_data { 1142 struct list_head list; 1143 1144 struct wireless_dev wdev; 1145 1146 /* keys */ 1147 struct list_head key_list; 1148 1149 /* count for keys needing tailroom space allocation */ 1150 int crypto_tx_tailroom_needed_cnt; 1151 int crypto_tx_tailroom_pending_dec; 1152 struct wiphy_delayed_work dec_tailroom_needed_wk; 1153 1154 struct net_device *dev; 1155 struct ieee80211_local *local; 1156 1157 unsigned int flags; 1158 1159 unsigned long state; 1160 1161 char name[IFNAMSIZ]; 1162 1163 struct ieee80211_fragment_cache frags; 1164 1165 /* TID bitmap for NoAck policy */ 1166 u16 noack_map; 1167 1168 /* bit field of ACM bits (BIT(802.1D tag)) */ 1169 u8 wmm_acm; 1170 1171 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS]; 1172 struct ieee80211_key __rcu *default_unicast_key; 1173 1174 u16 sequence_number; 1175 u16 mld_mcast_seq; 1176 __be16 control_port_protocol; 1177 bool control_port_no_encrypt; 1178 bool control_port_no_preauth; 1179 bool control_port_over_nl80211; 1180 1181 atomic_t num_tx_queued; 1182 struct mac80211_qos_map __rcu *qos_map; 1183 1184 struct wiphy_work work; 1185 struct sk_buff_head skb_queue; 1186 struct sk_buff_head status_queue; 1187 1188 /* 1189 * AP this belongs to: self in AP mode and 1190 * corresponding AP in VLAN mode, NULL for 1191 * all others (might be needed later in IBSS) 1192 */ 1193 struct ieee80211_if_ap *bss; 1194 1195 /* bitmap of allowed (non-MCS) rate indexes for rate control */ 1196 u32 rc_rateidx_mask[NUM_NL80211_BANDS]; 1197 1198 bool rc_has_mcs_mask[NUM_NL80211_BANDS]; 1199 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN]; 1200 1201 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS]; 1202 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX]; 1203 1204 /* Beacon frame (non-MCS) rate (as a bitmap) */ 1205 u32 beacon_rateidx_mask[NUM_NL80211_BANDS]; 1206 bool beacon_rate_set; 1207 1208 union { 1209 struct ieee80211_if_ap ap; 1210 struct ieee80211_if_vlan vlan; 1211 struct ieee80211_if_managed mgd; 1212 struct ieee80211_if_ibss ibss; 1213 struct ieee80211_if_mesh mesh; 1214 struct ieee80211_if_ocb ocb; 1215 struct ieee80211_if_mntr mntr; 1216 struct ieee80211_if_nan nan; 1217 struct ieee80211_if_nan_data nan_data; 1218 } u; 1219 1220 struct ieee80211_link_data deflink; 1221 struct ieee80211_link_data __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS]; 1222 1223 /* for ieee80211_set_active_links_async() */ 1224 struct wiphy_work activate_links_work; 1225 u16 desired_active_links; 1226 1227 u16 restart_active_links; 1228 1229 #ifdef CONFIG_MAC80211_DEBUGFS 1230 struct { 1231 struct dentry *subdir_stations; 1232 struct dentry *default_unicast_key; 1233 struct dentry *default_multicast_key; 1234 struct dentry *default_mgmt_key; 1235 struct dentry *default_beacon_key; 1236 } debugfs; 1237 #endif 1238 1239 u32 tx_handlers_drop; 1240 /* must be last, dynamically sized area in this! */ 1241 struct ieee80211_vif vif; 1242 }; 1243 1244 static inline 1245 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p) 1246 { 1247 return container_of(p, struct ieee80211_sub_if_data, vif); 1248 } 1249 1250 #define sdata_dereference(p, sdata) \ 1251 wiphy_dereference(sdata->local->hw.wiphy, p) 1252 1253 #define for_each_sdata_link(_local, _link) \ 1254 /* outer loop just to define the variables ... */ \ 1255 for (struct ieee80211_sub_if_data *___sdata = NULL; \ 1256 !___sdata; \ 1257 ___sdata = (void *)~0 /* always stop */) \ 1258 for (int ___link_id = ARRAY_SIZE(___sdata->link); \ 1259 ___link_id; ___link_id = 0 /* always stop */) \ 1260 list_for_each_entry(___sdata, &(_local)->interfaces, list) \ 1261 if (___link_id == ARRAY_SIZE(___sdata->link) && \ 1262 ieee80211_sdata_running(___sdata)) \ 1263 for (___link_id = 0; \ 1264 ___link_id < ARRAY_SIZE(___sdata->link); \ 1265 ___link_id++) \ 1266 if ((_link = wiphy_dereference((_local)->hw.wiphy, \ 1267 ___sdata->link[___link_id]))) 1268 1269 /* 1270 * for_each_sdata_link_rcu() must be used under RCU read lock. 1271 */ 1272 #define for_each_sdata_link_rcu(_local, _link) \ 1273 /* outer loop just to define the variables ... */ \ 1274 for (struct ieee80211_sub_if_data *___sdata = NULL; \ 1275 !___sdata; \ 1276 ___sdata = (void *)~0 /* always stop */) \ 1277 for (int ___link_id = ARRAY_SIZE(___sdata->link); \ 1278 ___link_id; ___link_id = 0 /* always stop */) \ 1279 list_for_each_entry(___sdata, &(_local)->interfaces, list) \ 1280 if (___link_id == ARRAY_SIZE(___sdata->link) && \ 1281 ieee80211_sdata_running(___sdata)) \ 1282 for (___link_id = 0; \ 1283 ___link_id < ARRAY_SIZE((___sdata)->link); \ 1284 ___link_id++) \ 1285 if ((_link = rcu_dereference((___sdata)->link[___link_id]))) 1286 1287 #define for_each_link_data(sdata, __link) \ 1288 /* outer loop just to define the variable ... */ \ 1289 for (struct ieee80211_sub_if_data *__sdata = (sdata); __sdata; \ 1290 __sdata = NULL /* always stop */) \ 1291 for (int __link_id = 0; \ 1292 __link_id < ARRAY_SIZE((__sdata)->link); __link_id++) \ 1293 if ((!(__sdata)->vif.valid_links || \ 1294 (__sdata)->vif.valid_links & BIT(__link_id)) && \ 1295 ((__link) = sdata_dereference((__sdata)->link[__link_id], \ 1296 (__sdata)))) 1297 1298 /* 1299 * for_each_link_data_rcu should be used under RCU read lock. 1300 */ 1301 #define for_each_link_data_rcu(sdata, __link) \ 1302 /* outer loop just to define the variable ... */ \ 1303 for (struct ieee80211_sub_if_data *__sdata = (sdata); __sdata; \ 1304 __sdata = NULL /* always stop */) \ 1305 for (int __link_id = 0; \ 1306 __link_id < ARRAY_SIZE((__sdata)->link); __link_id++) \ 1307 if ((!(__sdata)->vif.valid_links || \ 1308 (__sdata)->vif.valid_links & BIT(__link_id)) && \ 1309 ((__link) = rcu_dereference((__sdata)->link[__link_id]))) \ 1310 1311 static inline int 1312 ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems *elems, 1313 struct cfg80211_rnr_elems *rnr_elems, 1314 u8 i) 1315 { 1316 int len = 0; 1317 1318 if (!elems || !elems->cnt || i > elems->cnt) 1319 return 0; 1320 1321 if (i < elems->cnt) { 1322 len = elems->elem[i].len; 1323 if (rnr_elems) { 1324 len += rnr_elems->elem[i].len; 1325 for (i = elems->cnt; i < rnr_elems->cnt; i++) 1326 len += rnr_elems->elem[i].len; 1327 } 1328 return len; 1329 } 1330 1331 /* i == elems->cnt, calculate total length of all MBSSID elements */ 1332 for (i = 0; i < elems->cnt; i++) 1333 len += elems->elem[i].len; 1334 1335 if (rnr_elems) { 1336 for (i = 0; i < rnr_elems->cnt; i++) 1337 len += rnr_elems->elem[i].len; 1338 } 1339 1340 return len; 1341 } 1342 1343 enum { 1344 IEEE80211_RX_MSG = 1, 1345 IEEE80211_TX_STATUS_MSG = 2, 1346 }; 1347 1348 enum queue_stop_reason { 1349 IEEE80211_QUEUE_STOP_REASON_DRIVER, 1350 IEEE80211_QUEUE_STOP_REASON_PS, 1351 IEEE80211_QUEUE_STOP_REASON_CSA, 1352 IEEE80211_QUEUE_STOP_REASON_AGGREGATION, 1353 IEEE80211_QUEUE_STOP_REASON_SUSPEND, 1354 IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 1355 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL, 1356 IEEE80211_QUEUE_STOP_REASON_FLUSH, 1357 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN, 1358 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID, 1359 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE, 1360 1361 IEEE80211_QUEUE_STOP_REASONS, 1362 }; 1363 1364 #ifdef CONFIG_MAC80211_LEDS 1365 struct tpt_led_trigger { 1366 char name[32]; 1367 const struct ieee80211_tpt_blink *blink_table; 1368 unsigned int blink_table_len; 1369 struct timer_list timer; 1370 struct ieee80211_local *local; 1371 unsigned long prev_traffic; 1372 unsigned long tx_bytes, rx_bytes; 1373 unsigned int active, want; 1374 bool running; 1375 }; 1376 #endif 1377 1378 /** 1379 * enum mac80211_scan_flags - currently active scan mode 1380 * 1381 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as 1382 * well be on the operating channel 1383 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to 1384 * determine if we are on the operating channel or not 1385 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating 1386 * channel. This should not interrupt normal traffic. 1387 * @SCAN_COMPLETED: Set for our scan work function when the driver reported 1388 * that the scan completed. 1389 * @SCAN_ABORTED: Set for our scan work function when the driver reported 1390 * a scan complete for an aborted scan. 1391 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being 1392 * cancelled. 1393 * @SCAN_BEACON_WAIT: Set whenever we're passive scanning because of radar/no-IR 1394 * and could send a probe request after receiving a beacon. 1395 * @SCAN_BEACON_DONE: Beacon received, we can now send a probe request 1396 */ 1397 enum mac80211_scan_flags { 1398 SCAN_SW_SCANNING, 1399 SCAN_HW_SCANNING, 1400 SCAN_ONCHANNEL_SCANNING, 1401 SCAN_COMPLETED, 1402 SCAN_ABORTED, 1403 SCAN_HW_CANCELLED, 1404 SCAN_BEACON_WAIT, 1405 SCAN_BEACON_DONE, 1406 }; 1407 1408 /** 1409 * enum mac80211_scan_state - scan state machine states 1410 * 1411 * @SCAN_DECISION: Main entry point to the scan state machine, this state 1412 * determines if we should keep on scanning or switch back to the 1413 * operating channel 1414 * @SCAN_SET_CHANNEL: Set the next channel to be scanned 1415 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses 1416 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to 1417 * send out data 1418 * @SCAN_RESUME: Resume the scan and scan the next channel 1419 * @SCAN_ABORT: Abort the scan and go back to operating channel 1420 */ 1421 enum mac80211_scan_state { 1422 SCAN_DECISION, 1423 SCAN_SET_CHANNEL, 1424 SCAN_SEND_PROBE, 1425 SCAN_SUSPEND, 1426 SCAN_RESUME, 1427 SCAN_ABORT, 1428 }; 1429 1430 DECLARE_STATIC_KEY_FALSE(aql_disable); 1431 1432 struct ieee80211_local { 1433 /* embed the driver visible part. 1434 * don't cast (use the static inlines below), but we keep 1435 * it first anyway so they become a no-op */ 1436 struct ieee80211_hw hw; 1437 1438 struct fq fq; 1439 struct codel_vars *cvars; 1440 struct codel_params cparams; 1441 1442 /* protects active_txqs and txqi->schedule_order */ 1443 spinlock_t active_txq_lock[IEEE80211_NUM_ACS]; 1444 struct list_head active_txqs[IEEE80211_NUM_ACS]; 1445 u16 schedule_round[IEEE80211_NUM_ACS]; 1446 1447 /* serializes ieee80211_handle_wake_tx_queue */ 1448 spinlock_t handle_wake_tx_queue_lock; 1449 1450 u16 airtime_flags; 1451 u32 aql_txq_limit_low[IEEE80211_NUM_ACS]; 1452 u32 aql_txq_limit_high[IEEE80211_NUM_ACS]; 1453 u32 aql_threshold; 1454 atomic_t aql_total_pending_airtime; 1455 atomic_t aql_ac_pending_airtime[IEEE80211_NUM_ACS]; 1456 1457 const struct ieee80211_ops *ops; 1458 1459 /* 1460 * private workqueue to mac80211. mac80211 makes this accessible 1461 * via ieee80211_queue_work() 1462 */ 1463 struct workqueue_struct *workqueue; 1464 1465 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES]; 1466 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS]; 1467 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */ 1468 spinlock_t queue_stop_reason_lock; 1469 1470 int open_count; 1471 int monitors, virt_monitors, tx_mntrs; 1472 /* number of interfaces with corresponding FIF_ flags */ 1473 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll, 1474 fif_probe_req; 1475 bool probe_req_reg; 1476 bool rx_mcast_action_reg; 1477 unsigned int filter_flags; /* FIF_* */ 1478 1479 struct cfg80211_chan_def dflt_chandef; 1480 bool emulate_chanctx; 1481 1482 /* protects the aggregated multicast list and filter calls */ 1483 spinlock_t filter_lock; 1484 1485 /* used for uploading changed mc list */ 1486 struct wiphy_work reconfig_filter; 1487 1488 /* aggregated multicast list */ 1489 struct netdev_hw_addr_list mc_list; 1490 1491 bool tim_in_locked_section; /* see ieee80211_beacon_get() */ 1492 1493 /* 1494 * suspended is true if we finished all the suspend _and_ we have 1495 * not yet come up from resume. This is to be used by mac80211 1496 * to ensure driver sanity during suspend and mac80211's own 1497 * sanity. It can eventually be used for WoW as well. 1498 */ 1499 bool suspended; 1500 1501 /* suspending is true during the whole suspend process */ 1502 bool suspending; 1503 1504 /* 1505 * Resuming is true while suspended, but when we're reprogramming the 1506 * hardware -- at that time it's allowed to use ieee80211_queue_work() 1507 * again even though some other parts of the stack are still suspended 1508 * and we still drop received frames to avoid waking the stack. 1509 */ 1510 bool resuming; 1511 1512 /* 1513 * quiescing is true during the suspend process _only_ to 1514 * ease timer cancelling etc. 1515 */ 1516 bool quiescing; 1517 1518 /* device is started */ 1519 bool started; 1520 1521 /* device is during a HW reconfig */ 1522 bool in_reconfig; 1523 1524 /* reconfiguration failed ... suppress some warnings etc. */ 1525 bool reconfig_failure; 1526 1527 /* wowlan is enabled -- don't reconfig on resume */ 1528 bool wowlan; 1529 1530 struct wiphy_work radar_detected_work; 1531 1532 /* number of RX chains the hardware has */ 1533 u8 rx_chains; 1534 1535 /* bitmap of which sbands were copied */ 1536 u8 sband_allocated; 1537 1538 int tx_headroom; /* required headroom for hardware/radiotap */ 1539 1540 /* Tasklet and skb queue to process calls from IRQ mode. All frames 1541 * added to skb_queue will be processed, but frames in 1542 * skb_queue_unreliable may be dropped if the total length of these 1543 * queues increases over the limit. */ 1544 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128 1545 struct tasklet_struct tasklet; 1546 struct sk_buff_head skb_queue; 1547 struct sk_buff_head skb_queue_unreliable; 1548 1549 spinlock_t rx_path_lock; 1550 1551 /* Station data */ 1552 /* 1553 * The list, hash table and counter are protected 1554 * by the wiphy mutex, reads are done with RCU. 1555 */ 1556 spinlock_t tim_lock; 1557 unsigned long num_sta; 1558 struct list_head sta_list; 1559 struct rhltable sta_hash; 1560 struct rhltable link_sta_hash; 1561 struct timer_list sta_cleanup; 1562 int sta_generation; 1563 1564 struct sk_buff_head pending[IEEE80211_MAX_QUEUES]; 1565 struct tasklet_struct tx_pending_tasklet; 1566 struct tasklet_struct wake_txqs_tasklet; 1567 1568 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES]; 1569 1570 /* number of interfaces with allmulti RX */ 1571 atomic_t iff_allmultis; 1572 1573 struct rate_control_ref *rate_ctrl; 1574 1575 struct arc4_ctx wep_tx_ctx; 1576 struct arc4_ctx wep_rx_ctx; 1577 u32 wep_iv; 1578 1579 /* see iface.c */ 1580 struct list_head interfaces; 1581 struct list_head mon_list; /* only that are IFF_UP */ 1582 struct mutex iflist_mtx; 1583 1584 /* Scanning and BSS list */ 1585 unsigned long scanning; 1586 struct cfg80211_ssid scan_ssid; 1587 struct cfg80211_scan_request *int_scan_req; 1588 struct cfg80211_scan_request __rcu *scan_req; 1589 struct ieee80211_scan_request *hw_scan_req; 1590 struct cfg80211_chan_def scan_chandef; 1591 enum nl80211_band hw_scan_band; 1592 int scan_channel_idx; 1593 int scan_ies_len; 1594 int hw_scan_ies_bufsize; 1595 struct cfg80211_scan_info scan_info; 1596 1597 struct wiphy_work sched_scan_stopped_work; 1598 struct ieee80211_sub_if_data __rcu *sched_scan_sdata; 1599 struct cfg80211_sched_scan_request __rcu *sched_scan_req; 1600 u8 scan_addr[ETH_ALEN]; 1601 1602 unsigned long leave_oper_channel_time; 1603 enum mac80211_scan_state next_scan_state; 1604 struct wiphy_delayed_work scan_work; 1605 struct ieee80211_sub_if_data __rcu *scan_sdata; 1606 1607 /* Temporary remain-on-channel for off-channel operations */ 1608 struct ieee80211_channel *tmp_channel; 1609 1610 /* channel contexts */ 1611 struct list_head chanctx_list; 1612 1613 #ifdef CONFIG_MAC80211_LEDS 1614 struct led_trigger tx_led, rx_led, assoc_led, radio_led; 1615 struct led_trigger tpt_led; 1616 atomic_t tx_led_active, rx_led_active, assoc_led_active; 1617 atomic_t radio_led_active, tpt_led_active; 1618 struct tpt_led_trigger *tpt_led_trigger; 1619 #endif 1620 1621 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS 1622 /* SNMP counters */ 1623 /* dot11CountersTable */ 1624 u32 dot11TransmittedFragmentCount; 1625 u32 dot11MulticastTransmittedFrameCount; 1626 u32 dot11FailedCount; 1627 u32 dot11RetryCount; 1628 u32 dot11MultipleRetryCount; 1629 u32 dot11FrameDuplicateCount; 1630 u32 dot11ReceivedFragmentCount; 1631 u32 dot11MulticastReceivedFrameCount; 1632 u32 dot11TransmittedFrameCount; 1633 1634 /* TX/RX handler statistics */ 1635 unsigned int tx_handlers_queued; 1636 unsigned int tx_handlers_drop_wep; 1637 unsigned int tx_handlers_drop_not_assoc; 1638 unsigned int tx_handlers_drop_unauth_port; 1639 unsigned int rx_handlers_drop; 1640 unsigned int rx_handlers_queued; 1641 unsigned int rx_handlers_drop_nullfunc; 1642 unsigned int rx_handlers_drop_defrag; 1643 unsigned int tx_expand_skb_head; 1644 unsigned int tx_expand_skb_head_cloned; 1645 unsigned int rx_expand_skb_head_defrag; 1646 unsigned int rx_handlers_fragments; 1647 unsigned int tx_status_drop; 1648 #define I802_DEBUG_INC(c) (c)++ 1649 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */ 1650 #define I802_DEBUG_INC(c) do { } while (0) 1651 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */ 1652 1653 1654 int total_ps_buffered; /* total number of all buffered unicast and 1655 * multicast packets for power saving stations 1656 */ 1657 1658 bool pspolling; 1659 /* 1660 * PS can only be enabled when we have exactly one managed 1661 * interface (and monitors) in PS, this then points there. 1662 */ 1663 struct ieee80211_sub_if_data *ps_sdata; 1664 struct wiphy_work dynamic_ps_enable_work; 1665 struct wiphy_work dynamic_ps_disable_work; 1666 struct timer_list dynamic_ps_timer; 1667 struct notifier_block ifa_notifier; 1668 struct notifier_block ifa6_notifier; 1669 1670 /* 1671 * The dynamic ps timeout configured from user space via WEXT - 1672 * this will override whatever chosen by mac80211 internally. 1673 */ 1674 int dynamic_ps_forced_timeout; 1675 1676 int user_power_level; /* in dBm, for all interfaces */ 1677 1678 struct work_struct restart_work; 1679 1680 #ifdef CONFIG_MAC80211_DEBUGFS 1681 struct local_debugfsdentries { 1682 struct dentry *rcdir; 1683 struct dentry *keys; 1684 } debugfs; 1685 bool force_tx_status; 1686 #endif 1687 1688 /* 1689 * Remain-on-channel support 1690 */ 1691 struct wiphy_delayed_work roc_work; 1692 struct list_head roc_list; 1693 struct wiphy_work hw_roc_start, hw_roc_done; 1694 unsigned long hw_roc_start_time; 1695 u64 roc_cookie_counter; 1696 1697 struct idr ack_status_frames; 1698 spinlock_t ack_status_lock; 1699 1700 /* virtual monitor interface */ 1701 struct ieee80211_sub_if_data __rcu *monitor_sdata; 1702 struct ieee80211_chan_req monitor_chanreq; 1703 1704 /* extended capabilities provided by mac80211 */ 1705 u8 ext_capa[8]; 1706 1707 bool wbrf_supported; 1708 }; 1709 1710 static inline struct ieee80211_sub_if_data * 1711 IEEE80211_DEV_TO_SUB_IF(const struct net_device *dev) 1712 { 1713 return netdev_priv(dev); 1714 } 1715 1716 static inline struct ieee80211_sub_if_data * 1717 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev) 1718 { 1719 return container_of(wdev, struct ieee80211_sub_if_data, wdev); 1720 } 1721 1722 static inline struct ieee80211_supported_band * 1723 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata) 1724 { 1725 struct ieee80211_local *local = sdata->local; 1726 struct ieee80211_chanctx_conf *chanctx_conf; 1727 enum nl80211_band band; 1728 1729 WARN_ON(ieee80211_vif_is_mld(&sdata->vif)); 1730 1731 rcu_read_lock(); 1732 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 1733 1734 if (!chanctx_conf) { 1735 rcu_read_unlock(); 1736 return NULL; 1737 } 1738 1739 band = chanctx_conf->def.chan->band; 1740 rcu_read_unlock(); 1741 1742 return local->hw.wiphy->bands[band]; 1743 } 1744 1745 static inline struct ieee80211_supported_band * 1746 ieee80211_get_link_sband(struct ieee80211_link_data *link) 1747 { 1748 struct ieee80211_local *local = link->sdata->local; 1749 struct ieee80211_chanctx_conf *chanctx_conf; 1750 enum nl80211_band band; 1751 1752 rcu_read_lock(); 1753 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 1754 if (!chanctx_conf) { 1755 rcu_read_unlock(); 1756 return NULL; 1757 } 1758 1759 band = chanctx_conf->def.chan->band; 1760 rcu_read_unlock(); 1761 1762 return local->hw.wiphy->bands[band]; 1763 } 1764 1765 /* this struct holds the value parsing from channel switch IE */ 1766 struct ieee80211_csa_ie { 1767 struct ieee80211_chan_req chanreq; 1768 u8 mode; 1769 u8 count; 1770 u8 ttl; 1771 u16 pre_value; 1772 u16 reason_code; 1773 u32 max_switch_time; 1774 }; 1775 1776 enum ieee80211_elems_parse_error { 1777 IEEE80211_PARSE_ERR_INVALID_END = BIT(0), 1778 IEEE80211_PARSE_ERR_DUP_ELEM = BIT(1), 1779 IEEE80211_PARSE_ERR_BAD_ELEM_SIZE = BIT(2), 1780 IEEE80211_PARSE_ERR_UNEXPECTED_ELEM = BIT(3), 1781 IEEE80211_PARSE_ERR_DUP_NEST_ML_BASIC = BIT(4), 1782 }; 1783 1784 /* Parsed Information Elements */ 1785 struct ieee802_11_elems { 1786 const u8 *ie_start; 1787 size_t total_len; 1788 u32 crc; 1789 1790 /* pointers to IEs */ 1791 const struct ieee80211_tdls_lnkie *lnk_id; 1792 const struct ieee80211_ch_switch_timing *ch_sw_timing; 1793 const u8 *ext_capab; 1794 const u8 *ssid; 1795 const u8 *supp_rates; 1796 const u8 *ds_params; 1797 const struct ieee80211_tim_ie *tim; 1798 const u8 *rsn; 1799 const u8 *rsnx; 1800 const u8 *erp_info; 1801 const u8 *ext_supp_rates; 1802 const u8 *wmm_info; 1803 const u8 *wmm_param; 1804 const struct ieee80211_ht_cap *ht_cap_elem; 1805 const struct ieee80211_ht_operation *ht_operation; 1806 const struct ieee80211_vht_cap *vht_cap_elem; 1807 const struct ieee80211_vht_operation *vht_operation; 1808 const struct ieee80211_meshconf_ie *mesh_config; 1809 const u8 *he_cap; 1810 const struct ieee80211_he_operation *he_operation; 1811 const struct ieee80211_he_spr *he_spr; 1812 const struct ieee80211_mu_edca_param_set *mu_edca_param_set; 1813 const struct ieee80211_he_6ghz_capa *he_6ghz_capa; 1814 const u8 *uora_element; 1815 const u8 *mesh_id; 1816 const u8 *peering; 1817 const __le16 *awake_window; 1818 const u8 *preq; 1819 const u8 *prep; 1820 const u8 *perr; 1821 const struct ieee80211_rann_ie *rann; 1822 const struct ieee80211_channel_sw_ie *ch_switch_ie; 1823 const struct ieee80211_ext_chansw_ie *ext_chansw_ie; 1824 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie; 1825 const u8 *max_channel_switch_time; 1826 const u8 *country_elem; 1827 const u8 *pwr_constr_elem; 1828 const u8 *cisco_dtpc_elem; 1829 const struct ieee80211_timeout_interval_ie *timeout_int; 1830 const u8 *opmode_notif; 1831 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs; 1832 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie; 1833 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie; 1834 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie; 1835 const struct ieee80211_bssid_index *bssid_index; 1836 u8 max_bssid_indicator; 1837 u8 dtim_count; 1838 u8 dtim_period; 1839 const struct ieee80211_addba_ext_ie *addba_ext_ie; 1840 const struct ieee80211_s1g_cap *s1g_capab; 1841 const struct ieee80211_s1g_oper_ie *s1g_oper; 1842 const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat; 1843 const struct ieee80211_aid_response_ie *aid_resp; 1844 const struct ieee80211_eht_cap_elem *eht_cap; 1845 const struct ieee80211_eht_operation *eht_operation; 1846 const struct ieee80211_multi_link_elem *ml_basic; 1847 const struct ieee80211_multi_link_elem *ml_reconf; 1848 const struct ieee80211_multi_link_elem *ml_epcs; 1849 const struct ieee80211_bandwidth_indication *bandwidth_indication; 1850 const struct ieee80211_ttlm_elem *ttlm[IEEE80211_TTLM_MAX_CNT]; 1851 const struct ieee80211_uhr_cap *uhr_cap; 1852 const struct ieee80211_uhr_operation *uhr_operation; 1853 1854 /* not the order in the psd values is per element, not per chandef */ 1855 struct ieee80211_parsed_tpe tpe; 1856 struct ieee80211_parsed_tpe csa_tpe; 1857 1858 /* length of them, respectively */ 1859 u8 ext_capab_len; 1860 u8 ssid_len; 1861 u8 supp_rates_len; 1862 u8 tim_len; 1863 u8 rsn_len; 1864 u8 rsnx_len; 1865 u8 ext_supp_rates_len; 1866 u8 wmm_info_len; 1867 u8 wmm_param_len; 1868 u8 he_cap_len; 1869 u8 mesh_id_len; 1870 u8 peering_len; 1871 u8 preq_len; 1872 u8 prep_len; 1873 u8 perr_len; 1874 u8 country_elem_len; 1875 u8 bssid_index_len; 1876 u8 eht_cap_len; 1877 u8 uhr_cap_len; 1878 u8 uhr_operation_len; 1879 1880 /* mult-link element can be de-fragmented and thus u8 is not sufficient */ 1881 size_t ml_basic_len; 1882 size_t ml_reconf_len; 1883 size_t ml_epcs_len; 1884 1885 u8 ttlm_num; 1886 1887 /* 1888 * store the per station profile pointer and length in case that the 1889 * parsing also handled Multi-Link element parsing for a specific link 1890 * ID. 1891 */ 1892 struct ieee80211_mle_per_sta_profile *prof; 1893 size_t sta_prof_len; 1894 1895 /* whether/which parse error occurred while retrieving these elements */ 1896 u8 parse_error; 1897 }; 1898 1899 static inline struct ieee80211_local *hw_to_local( 1900 struct ieee80211_hw *hw) 1901 { 1902 return container_of(hw, struct ieee80211_local, hw); 1903 } 1904 1905 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq) 1906 { 1907 return container_of(txq, struct txq_info, txq); 1908 } 1909 1910 static inline bool txq_has_queue(struct ieee80211_txq *txq) 1911 { 1912 struct txq_info *txqi = to_txq_info(txq); 1913 1914 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets); 1915 } 1916 1917 static inline bool 1918 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status) 1919 { 1920 return status->flag & RX_FLAG_MACTIME; 1921 } 1922 1923 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata); 1924 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata); 1925 1926 void ieee80211_vif_block_queues_csa(struct ieee80211_sub_if_data *sdata); 1927 void ieee80211_vif_unblock_queues_csa(struct ieee80211_sub_if_data *sdata); 1928 1929 /* This function returns the number of multicast stations connected to this 1930 * interface. It returns -1 if that number is not tracked, that is for netdevs 1931 * not in AP or AP_VLAN mode or when using 4addr. 1932 */ 1933 static inline int 1934 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata) 1935 { 1936 if (sdata->vif.type == NL80211_IFTYPE_AP) 1937 return atomic_read(&sdata->u.ap.num_mcast_sta); 1938 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta) 1939 return atomic_read(&sdata->u.vlan.num_mcast_sta); 1940 return -1; 1941 } 1942 1943 int ieee80211_hw_config(struct ieee80211_local *local, int radio_idx, 1944 u32 changed); 1945 int ieee80211_hw_conf_chan(struct ieee80211_local *local); 1946 void ieee80211_hw_conf_init(struct ieee80211_local *local); 1947 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); 1948 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, 1949 u64 changed); 1950 void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata, 1951 u64 changed); 1952 void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata, 1953 struct ieee80211_link_data *link, 1954 u64 changed); 1955 void ieee80211_configure_filter(struct ieee80211_local *local); 1956 u64 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata); 1957 1958 void ieee80211_handle_queued_frames(struct ieee80211_local *local); 1959 1960 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local); 1961 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 1962 u64 *cookie, gfp_t gfp); 1963 1964 void ieee80211_check_fast_rx(struct sta_info *sta); 1965 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata); 1966 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata); 1967 void ieee80211_clear_fast_rx(struct sta_info *sta); 1968 1969 bool ieee80211_is_our_addr(struct ieee80211_sub_if_data *sdata, 1970 const u8 *addr, int *out_link_id); 1971 1972 /* STA code */ 1973 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata); 1974 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, 1975 struct cfg80211_auth_request *req); 1976 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, 1977 struct cfg80211_assoc_request *req); 1978 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, 1979 struct cfg80211_deauth_request *req); 1980 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, 1981 struct cfg80211_disassoc_request *req); 1982 void ieee80211_send_pspoll(struct ieee80211_local *local, 1983 struct ieee80211_sub_if_data *sdata); 1984 void ieee80211_recalc_ps(struct ieee80211_local *local); 1985 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata); 1986 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata); 1987 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 1988 struct sk_buff *skb); 1989 void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata, 1990 struct sk_buff *skb); 1991 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata); 1992 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata); 1993 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata); 1994 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata, 1995 __le16 fc, bool acked); 1996 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata); 1997 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata); 1998 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata); 1999 void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, 2000 u8 reason, bool tx); 2001 void ieee80211_mgd_setup_link(struct ieee80211_link_data *link); 2002 void ieee80211_mgd_stop_link(struct ieee80211_link_data *link); 2003 void ieee80211_mgd_set_link_qos_params(struct ieee80211_link_data *link); 2004 2005 /* IBSS code */ 2006 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local); 2007 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata); 2008 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata, 2009 const u8 *bssid, const u8 *addr, u32 supp_rates); 2010 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, 2011 struct cfg80211_ibss_params *params); 2012 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata); 2013 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata); 2014 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 2015 struct sk_buff *skb); 2016 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata, 2017 struct cfg80211_csa_settings *csa_settings, 2018 u64 *changed); 2019 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata, 2020 u64 *changed); 2021 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata); 2022 2023 /* OCB code */ 2024 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata); 2025 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata, 2026 const u8 *bssid, const u8 *addr, u32 supp_rates); 2027 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata); 2028 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata, 2029 struct ocb_setup *setup); 2030 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata); 2031 2032 /* mesh code */ 2033 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata); 2034 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 2035 struct sk_buff *skb); 2036 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata, 2037 struct cfg80211_csa_settings *csa_settings, 2038 u64 *changed); 2039 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata, 2040 u64 *changed); 2041 2042 /* NAN code */ 2043 int ieee80211_nan_set_local_sched(struct ieee80211_sub_if_data *sdata, 2044 struct cfg80211_nan_local_sched *sched); 2045 int ieee80211_nan_set_peer_sched(struct ieee80211_sub_if_data *sdata, 2046 struct cfg80211_nan_peer_sched *sched); 2047 void ieee80211_nan_free_peer_sched(struct ieee80211_nan_peer_sched *sched); 2048 void ieee80211_nan_update_ndi_carrier(struct ieee80211_sub_if_data *ndi_sdata); 2049 2050 /* scan/BSS handling */ 2051 void ieee80211_scan_work(struct wiphy *wiphy, struct wiphy_work *work); 2052 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata, 2053 const u8 *ssid, u8 ssid_len, 2054 struct ieee80211_channel **channels, 2055 unsigned int n_channels); 2056 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, 2057 struct cfg80211_scan_request *req); 2058 void ieee80211_scan_cancel(struct ieee80211_local *local); 2059 void ieee80211_run_deferred_scan(struct ieee80211_local *local); 2060 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb); 2061 2062 void ieee80211_inform_bss(struct wiphy *wiphy, struct cfg80211_bss *bss, 2063 const struct cfg80211_bss_ies *ies, void *data); 2064 2065 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local); 2066 struct ieee80211_bss * 2067 ieee80211_bss_info_update(struct ieee80211_local *local, 2068 struct ieee80211_rx_status *rx_status, 2069 struct ieee80211_mgmt *mgmt, 2070 size_t len, 2071 struct ieee80211_channel *channel); 2072 void ieee80211_rx_bss_put(struct ieee80211_local *local, 2073 struct ieee80211_bss *bss); 2074 2075 /* scheduled scan handling */ 2076 int 2077 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, 2078 struct cfg80211_sched_scan_request *req); 2079 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, 2080 struct cfg80211_sched_scan_request *req); 2081 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local); 2082 void ieee80211_sched_scan_end(struct ieee80211_local *local); 2083 void ieee80211_sched_scan_stopped_work(struct wiphy *wiphy, 2084 struct wiphy_work *work); 2085 2086 /* off-channel/mgmt-tx */ 2087 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local); 2088 void ieee80211_offchannel_return(struct ieee80211_local *local); 2089 void ieee80211_roc_setup(struct ieee80211_local *local); 2090 void ieee80211_start_next_roc(struct ieee80211_local *local); 2091 void ieee80211_reconfig_roc(struct ieee80211_local *local); 2092 void ieee80211_roc_purge(struct ieee80211_local *local, 2093 struct ieee80211_sub_if_data *sdata); 2094 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev, 2095 struct ieee80211_channel *chan, 2096 unsigned int duration, u64 *cookie); 2097 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, 2098 struct wireless_dev *wdev, u64 cookie); 2099 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 2100 struct cfg80211_mgmt_tx_params *params, u64 *cookie); 2101 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, 2102 struct wireless_dev *wdev, u64 cookie); 2103 2104 /* channel switch handling */ 2105 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work); 2106 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 2107 struct cfg80211_csa_settings *params); 2108 2109 /* color change handling */ 2110 void ieee80211_color_change_finalize_work(struct wiphy *wiphy, 2111 struct wiphy_work *work); 2112 void ieee80211_color_collision_detection_work(struct wiphy *wiphy, 2113 struct wiphy_work *work); 2114 2115 /* interface handling */ 2116 #define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \ 2117 NETIF_F_HW_CSUM | NETIF_F_SG | \ 2118 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE | \ 2119 NETIF_F_HW_TC) 2120 #define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM) 2121 #define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \ 2122 MAC80211_SUPPORTED_FEATURES_RX) 2123 2124 int ieee80211_iface_init(void); 2125 void ieee80211_iface_exit(void); 2126 int ieee80211_if_add(struct ieee80211_local *local, const char *name, 2127 unsigned char name_assign_type, 2128 struct wireless_dev **new_wdev, enum nl80211_iftype type, 2129 struct vif_params *params); 2130 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, 2131 enum nl80211_iftype type); 2132 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata); 2133 void ieee80211_remove_interfaces(struct ieee80211_local *local); 2134 u32 ieee80211_idle_off(struct ieee80211_local *local); 2135 void ieee80211_recalc_idle(struct ieee80211_local *local); 2136 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata, 2137 const int offset); 2138 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up); 2139 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata); 2140 int ieee80211_add_virtual_monitor(struct ieee80211_local *local, 2141 struct ieee80211_sub_if_data *creator_sdata); 2142 void ieee80211_del_virtual_monitor(struct ieee80211_local *local); 2143 2144 bool __ieee80211_recalc_txpower(struct ieee80211_link_data *link); 2145 void ieee80211_recalc_txpower(struct ieee80211_link_data *link, 2146 bool update_bss); 2147 void ieee80211_recalc_offload(struct ieee80211_local *local); 2148 2149 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata) 2150 { 2151 return test_bit(SDATA_STATE_RUNNING, &sdata->state); 2152 } 2153 2154 /* link handling */ 2155 void ieee80211_link_setup(struct ieee80211_link_data *link); 2156 void ieee80211_link_init(struct ieee80211_sub_if_data *sdata, 2157 int link_id, 2158 struct ieee80211_link_data *link, 2159 struct ieee80211_bss_conf *link_conf); 2160 void ieee80211_link_stop(struct ieee80211_link_data *link); 2161 int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata, 2162 u16 new_links, u16 dormant_links); 2163 static inline void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata) 2164 { 2165 ieee80211_vif_set_links(sdata, 0, 0); 2166 } 2167 2168 void ieee80211_apvlan_link_setup(struct ieee80211_sub_if_data *sdata); 2169 void ieee80211_apvlan_link_clear(struct ieee80211_sub_if_data *sdata); 2170 2171 /* tx handling */ 2172 void ieee80211_clear_tx_pending(struct ieee80211_local *local); 2173 void ieee80211_tx_pending(struct tasklet_struct *t); 2174 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb, 2175 struct net_device *dev); 2176 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, 2177 struct net_device *dev); 2178 netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb, 2179 struct net_device *dev); 2180 void __ieee80211_subif_start_xmit(struct sk_buff *skb, 2181 struct net_device *dev, 2182 u32 info_flags, 2183 u32 ctrl_flags, 2184 u64 *cookie); 2185 struct sk_buff * 2186 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata, 2187 struct sk_buff *skb, u32 info_flags); 2188 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb, 2189 int retry_count, struct ieee80211_tx_status *status); 2190 2191 void ieee80211_check_fast_xmit(struct sta_info *sta); 2192 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local); 2193 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata); 2194 void ieee80211_clear_fast_xmit(struct sta_info *sta); 2195 int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev, 2196 const u8 *buf, size_t len, 2197 const u8 *dest, __be16 proto, bool unencrypted, 2198 int link_id, u64 *cookie); 2199 int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev, 2200 const u8 *buf, size_t len); 2201 void __ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata, 2202 struct sta_info *sta, 2203 struct ieee80211_fast_tx *fast_tx, 2204 struct sk_buff *skb, bool ampdu, 2205 const u8 *da, const u8 *sa); 2206 void ieee80211_aggr_check(struct ieee80211_sub_if_data *sdata, 2207 struct sta_info *sta, struct sk_buff *skb); 2208 2209 /* HT */ 2210 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, 2211 struct ieee80211_sta_ht_cap *ht_cap); 2212 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, 2213 const struct ieee80211_sta_ht_cap *own_cap, 2214 const struct ieee80211_ht_cap *ht_cap_ie, 2215 struct link_sta_info *link_sta); 2216 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, 2217 const u8 *da, u16 tid, 2218 u16 initiator, u16 reason_code, 2219 bool use_ndp); 2220 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata, 2221 enum ieee80211_smps_mode smps, const u8 *da, 2222 const u8 *bssid, int link_id); 2223 void ieee80211_add_addbaext(struct sk_buff *skb, 2224 const u8 req_addba_ext_data, 2225 u16 buf_size); 2226 u8 ieee80211_retrieve_addba_ext_data(struct sta_info *sta, 2227 const void *elem_data, ssize_t elem_len, 2228 u16 *buf_size); 2229 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, 2230 u16 initiator, u16 reason, bool stop); 2231 void __ieee80211_start_rx_ba_session(struct sta_info *sta, 2232 u8 dialog_token, u16 timeout, 2233 u16 start_seq_num, u16 ba_policy, u16 tid, 2234 u16 buf_size, bool tx, bool auto_seq, 2235 bool req_ndp, 2236 const u8 addba_ext_data); 2237 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, 2238 enum ieee80211_agg_stop_reason reason); 2239 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, 2240 struct sta_info *sta, 2241 struct ieee80211_mgmt *mgmt, size_t len); 2242 void ieee80211_process_addba_resp(struct ieee80211_local *local, 2243 struct sta_info *sta, 2244 struct ieee80211_mgmt *mgmt, 2245 size_t len); 2246 void ieee80211_process_addba_request(struct ieee80211_local *local, 2247 struct sta_info *sta, 2248 struct ieee80211_mgmt *mgmt, 2249 size_t len); 2250 2251 static inline struct ieee80211_mgmt * 2252 ieee80211_mgmt_ba(struct sk_buff *skb, const u8 *da, 2253 struct ieee80211_sub_if_data *sdata) 2254 { 2255 struct ieee80211_mgmt *mgmt = skb_put_zero(skb, 24); 2256 2257 ether_addr_copy(mgmt->da, da); 2258 ether_addr_copy(mgmt->sa, sdata->vif.addr); 2259 2260 if (sdata->vif.type == NL80211_IFTYPE_AP || 2261 sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 2262 sdata->vif.type == NL80211_IFTYPE_MESH_POINT) 2263 ether_addr_copy(mgmt->bssid, sdata->vif.addr); 2264 else if (sdata->vif.type == NL80211_IFTYPE_STATION) 2265 ether_addr_copy(mgmt->bssid, sdata->vif.cfg.ap_addr); 2266 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) 2267 ether_addr_copy(mgmt->bssid, sdata->u.ibss.bssid); 2268 2269 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 2270 IEEE80211_STYPE_ACTION); 2271 return mgmt; 2272 } 2273 2274 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, 2275 enum ieee80211_agg_stop_reason reason); 2276 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid, 2277 struct tid_ampdu_tx *tid_tx); 2278 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid, 2279 struct tid_ampdu_tx *tid_tx); 2280 void ieee80211_ba_session_work(struct wiphy *wiphy, struct wiphy_work *work); 2281 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid); 2282 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid); 2283 2284 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs); 2285 enum nl80211_smps_mode 2286 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps); 2287 2288 void ieee80211_ht_handle_chanwidth_notif(struct ieee80211_local *local, 2289 struct ieee80211_sub_if_data *sdata, 2290 struct sta_info *sta, 2291 struct link_sta_info *link_sta, 2292 u8 chanwidth, enum nl80211_band band); 2293 2294 /* VHT */ 2295 void 2296 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, 2297 struct ieee80211_supported_band *sband, 2298 const struct ieee80211_sta_vht_cap *own_vht_cap, 2299 const struct ieee80211_vht_cap *vht_cap_ie, 2300 const struct ieee80211_vht_cap *vht_cap_ie2, 2301 struct link_sta_info *link_sta); 2302 enum ieee80211_sta_rx_bandwidth 2303 _ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta, 2304 struct cfg80211_chan_def *chandef); 2305 static inline enum ieee80211_sta_rx_bandwidth 2306 ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta) 2307 { 2308 return _ieee80211_sta_cap_rx_bw(link_sta, NULL); 2309 } 2310 enum ieee80211_sta_rx_bandwidth 2311 _ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta, 2312 struct cfg80211_chan_def *chandef); 2313 static inline enum ieee80211_sta_rx_bandwidth 2314 ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta) 2315 { 2316 return _ieee80211_sta_cur_vht_bw(link_sta, NULL); 2317 } 2318 void ieee80211_sta_init_nss(struct link_sta_info *link_sta); 2319 enum nl80211_chan_width 2320 ieee80211_sta_cap_chan_bw(struct link_sta_info *link_sta); 2321 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata, 2322 struct ieee80211_link_data *link, 2323 struct ieee80211_mgmt *mgmt); 2324 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, 2325 struct link_sta_info *sta, 2326 u8 opmode, enum nl80211_band band); 2327 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, 2328 struct link_sta_info *sta, 2329 u8 opmode, enum nl80211_band band); 2330 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata, 2331 struct ieee80211_sta_vht_cap *vht_cap); 2332 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap, 2333 u16 vht_mask[NL80211_VHT_NSS_MAX]); 2334 enum nl80211_chan_width 2335 ieee80211_sta_rx_bw_to_chan_width(struct link_sta_info *sta); 2336 2337 /* HE */ 2338 void 2339 _ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata, 2340 const struct ieee80211_sta_he_cap *own_he_cap, 2341 const u8 *he_cap_ie, u8 he_cap_len, 2342 const struct ieee80211_he_6ghz_capa *he_6ghz_capa, 2343 struct link_sta_info *link_sta); 2344 void 2345 ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata, 2346 struct ieee80211_supported_band *sband, 2347 const u8 *he_cap_ie, u8 he_cap_len, 2348 const struct ieee80211_he_6ghz_capa *he_6ghz_capa, 2349 struct link_sta_info *link_sta); 2350 void 2351 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif, 2352 const struct ieee80211_he_spr *he_spr_ie_elem); 2353 2354 void 2355 ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif, 2356 const struct ieee80211_he_operation *he_op_ie_elem); 2357 2358 /* S1G */ 2359 void ieee80211_s1g_sta_rate_init(struct sta_info *sta); 2360 bool ieee80211_s1g_is_twt_setup(struct sk_buff *skb); 2361 void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata, 2362 struct sk_buff *skb); 2363 void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata, 2364 struct sk_buff *skb); 2365 void ieee80211_s1g_cap_to_sta_s1g_cap(struct ieee80211_sub_if_data *sdata, 2366 const struct ieee80211_s1g_cap *s1g_cap_ie, 2367 struct link_sta_info *link_sta); 2368 bool ieee80211_s1g_use_ndp_ba(const struct ieee80211_sub_if_data *sdata, 2369 const struct sta_info *sta); 2370 2371 /* Spectrum management */ 2372 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, 2373 struct ieee80211_mgmt *mgmt, 2374 size_t len); 2375 /** 2376 * ieee80211_parse_ch_switch_ie - parses channel switch IEs 2377 * @sdata: the sdata of the interface which has received the frame 2378 * @elems: parsed 802.11 elements received with the frame 2379 * @current_band: indicates the current band 2380 * @vht_cap_info: VHT capabilities of the transmitter 2381 * @conn: contains information about own capabilities and restrictions 2382 * to decide which channel switch announcements can be accepted 2383 * @bssid: the currently connected bssid (for reporting) 2384 * @unprot_action: whether the frame was an unprotected frame or not, 2385 * used for reporting 2386 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl. 2387 * All of them will be filled with if success only. 2388 * Return: 0 on success, <0 on error and >0 if there is nothing to parse. 2389 */ 2390 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata, 2391 struct ieee802_11_elems *elems, 2392 enum nl80211_band current_band, 2393 u32 vht_cap_info, 2394 struct ieee80211_conn_settings *conn, 2395 u8 *bssid, bool unprot_action, 2396 struct ieee80211_csa_ie *csa_ie); 2397 2398 /* Suspend/resume and hw reconfiguration */ 2399 int ieee80211_reconfig(struct ieee80211_local *local); 2400 void ieee80211_stop_device(struct ieee80211_local *local, bool suspend); 2401 2402 int __ieee80211_suspend(struct ieee80211_hw *hw, 2403 struct cfg80211_wowlan *wowlan); 2404 2405 static inline int __ieee80211_resume(struct ieee80211_hw *hw) 2406 { 2407 struct ieee80211_local *local = hw_to_local(hw); 2408 2409 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) && 2410 !test_bit(SCAN_COMPLETED, &local->scanning), 2411 "%s: resume with hardware scan still in progress\n", 2412 wiphy_name(hw->wiphy)); 2413 2414 return ieee80211_reconfig(hw_to_local(hw)); 2415 } 2416 2417 /* utility functions/constants */ 2418 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */ 2419 const char *ieee80211_conn_mode_str(enum ieee80211_conn_mode mode); 2420 enum ieee80211_conn_bw_limit 2421 ieee80211_min_bw_limit_from_chandef(struct cfg80211_chan_def *chandef); 2422 int ieee80211_frame_duration(enum nl80211_band band, size_t len, 2423 int rate, int erp, int short_preamble); 2424 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, 2425 struct ieee80211_tx_queue_params *qparam, 2426 int ac); 2427 void ieee80211_clear_tpe(struct ieee80211_parsed_tpe *tpe); 2428 void ieee80211_set_wmm_default(struct ieee80211_link_data *link, 2429 bool bss_notify, bool enable_qos); 2430 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, 2431 struct sta_info *sta, struct sk_buff *skb); 2432 2433 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, 2434 struct sk_buff *skb, int tid, int link_id, 2435 enum nl80211_band band); 2436 2437 static inline bool ieee80211_require_encrypted_assoc(__le16 fc, 2438 struct sta_info *sta) 2439 { 2440 return (sta && sta->sta.epp_peer && 2441 (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc) || 2442 ieee80211_is_assoc_resp(fc) || ieee80211_is_reassoc_resp(fc))); 2443 } 2444 2445 /* sta_out needs to be checked for ERR_PTR() before using */ 2446 int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata, 2447 struct sk_buff *skb, 2448 struct sta_info **sta_out); 2449 2450 static inline void 2451 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, 2452 struct sk_buff *skb, int tid, 2453 enum nl80211_band band) 2454 { 2455 rcu_read_lock(); 2456 __ieee80211_tx_skb_tid_band(sdata, skb, tid, -1, band); 2457 rcu_read_unlock(); 2458 } 2459 2460 void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata, 2461 struct sk_buff *skb, int tid, int link_id); 2462 2463 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, 2464 struct sk_buff *skb) 2465 { 2466 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */ 2467 ieee80211_tx_skb_tid(sdata, skb, 7, -1); 2468 } 2469 2470 /** 2471 * struct ieee80211_elems_parse_params - element parsing parameters 2472 * @mode: connection mode for parsing 2473 * @start: pointer to the elements 2474 * @len: length of the elements 2475 * @type: type of the frame the elements came from 2476 * (action, probe response, beacon, etc.) 2477 * @filter: bitmap of element IDs to filter out while calculating 2478 * the element CRC 2479 * @crc: CRC starting value 2480 * @bss: the BSS to parse this as, for multi-BSSID cases this can 2481 * represent a non-transmitting BSS in which case the data 2482 * for that non-transmitting BSS is returned 2483 * @link_id: the link ID to parse elements for, if a STA profile 2484 * is present in the multi-link element, or -1 to ignore; 2485 * note that the code currently assumes parsing an association 2486 * (or re-association) response frame if this is given 2487 * @from_ap: frame is received from an AP (currently used only 2488 * for EHT capabilities parsing) 2489 */ 2490 struct ieee80211_elems_parse_params { 2491 enum ieee80211_conn_mode mode; 2492 const u8 *start; 2493 size_t len; 2494 u8 type; 2495 u64 filter; 2496 u32 crc; 2497 struct cfg80211_bss *bss; 2498 int link_id; 2499 bool from_ap; 2500 }; 2501 2502 struct ieee802_11_elems * 2503 ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params); 2504 2505 static inline struct ieee802_11_elems * 2506 ieee802_11_parse_elems(const u8 *start, size_t len, u8 type, 2507 struct cfg80211_bss *bss) 2508 { 2509 struct ieee80211_elems_parse_params params = { 2510 .mode = IEEE80211_CONN_MODE_HIGHEST, 2511 .start = start, 2512 .len = len, 2513 .type = type, 2514 .bss = bss, 2515 .link_id = -1, 2516 }; 2517 2518 return ieee802_11_parse_elems_full(¶ms); 2519 } 2520 2521 extern const int ieee802_1d_to_ac[8]; 2522 2523 static inline int ieee80211_ac_from_tid(int tid) 2524 { 2525 return ieee802_1d_to_ac[tid & 7]; 2526 } 2527 2528 void ieee80211_dynamic_ps_enable_work(struct wiphy *wiphy, 2529 struct wiphy_work *work); 2530 void ieee80211_dynamic_ps_disable_work(struct wiphy *wiphy, 2531 struct wiphy_work *work); 2532 void ieee80211_dynamic_ps_timer(struct timer_list *t); 2533 void ieee80211_send_nullfunc(struct ieee80211_local *local, 2534 struct ieee80211_sub_if_data *sdata, 2535 bool powersave); 2536 void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local, 2537 struct ieee80211_sub_if_data *sdata); 2538 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata, 2539 struct ieee80211_hdr *hdr, bool ack, u16 tx_time); 2540 unsigned int 2541 ieee80211_get_vif_queues(struct ieee80211_local *local, 2542 struct ieee80211_sub_if_data *sdata); 2543 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, 2544 unsigned long queues, 2545 enum queue_stop_reason reason, 2546 bool refcounted); 2547 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, 2548 unsigned long queues, 2549 enum queue_stop_reason reason, 2550 bool refcounted); 2551 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, 2552 enum queue_stop_reason reason, 2553 bool refcounted); 2554 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, 2555 enum queue_stop_reason reason, 2556 bool refcounted); 2557 static inline void 2558 ieee80211_stop_vif_queues(struct ieee80211_local *local, 2559 struct ieee80211_sub_if_data *sdata, 2560 enum queue_stop_reason reason) 2561 { 2562 ieee80211_stop_queues_by_reason(&local->hw, 2563 ieee80211_get_vif_queues(local, sdata), 2564 reason, true); 2565 } 2566 2567 static inline void 2568 ieee80211_wake_vif_queues(struct ieee80211_local *local, 2569 struct ieee80211_sub_if_data *sdata, 2570 enum queue_stop_reason reason) 2571 { 2572 ieee80211_wake_queues_by_reason(&local->hw, 2573 ieee80211_get_vif_queues(local, sdata), 2574 reason, true); 2575 } 2576 static inline void 2577 ieee80211_stop_vif_queues_norefcount(struct ieee80211_local *local, 2578 struct ieee80211_sub_if_data *sdata, 2579 enum queue_stop_reason reason) 2580 { 2581 ieee80211_stop_queues_by_reason(&local->hw, 2582 ieee80211_get_vif_queues(local, sdata), 2583 reason, false); 2584 } 2585 static inline void 2586 ieee80211_wake_vif_queues_norefcount(struct ieee80211_local *local, 2587 struct ieee80211_sub_if_data *sdata, 2588 enum queue_stop_reason reason) 2589 { 2590 ieee80211_wake_queues_by_reason(&local->hw, 2591 ieee80211_get_vif_queues(local, sdata), 2592 reason, false); 2593 } 2594 void ieee80211_add_pending_skb(struct ieee80211_local *local, 2595 struct sk_buff *skb); 2596 void ieee80211_add_pending_skbs(struct ieee80211_local *local, 2597 struct sk_buff_head *skbs); 2598 void ieee80211_flush_queues(struct ieee80211_local *local, 2599 struct ieee80211_sub_if_data *sdata, bool drop); 2600 void __ieee80211_flush_queues(struct ieee80211_local *local, 2601 struct ieee80211_sub_if_data *sdata, 2602 unsigned int queues, bool drop); 2603 2604 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local) 2605 { 2606 /* 2607 * It's unsafe to try to do any work during reconfigure flow. 2608 * When the flow ends the work will be requeued. 2609 */ 2610 if (local->in_reconfig) 2611 return false; 2612 2613 /* 2614 * If quiescing is set, we are racing with __ieee80211_suspend. 2615 * __ieee80211_suspend flushes the workers after setting quiescing, 2616 * and we check quiescing / suspended before enqueuing new workers. 2617 * We should abort the worker to avoid the races below. 2618 */ 2619 if (local->quiescing) 2620 return false; 2621 2622 /* 2623 * We might already be suspended if the following scenario occurs: 2624 * __ieee80211_suspend Control path 2625 * 2626 * if (local->quiescing) 2627 * return; 2628 * local->quiescing = true; 2629 * flush_workqueue(); 2630 * queue_work(...); 2631 * local->suspended = true; 2632 * local->quiescing = false; 2633 * worker starts running... 2634 */ 2635 if (local->suspended) 2636 return false; 2637 2638 return true; 2639 } 2640 2641 int ieee80211_txq_setup_flows(struct ieee80211_local *local); 2642 void ieee80211_txq_set_params(struct ieee80211_local *local, int radio_idx); 2643 void ieee80211_txq_teardown_flows(struct ieee80211_local *local); 2644 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata, 2645 struct sta_info *sta, 2646 struct txq_info *txq, int tid); 2647 void ieee80211_txq_purge(struct ieee80211_local *local, 2648 struct txq_info *txqi); 2649 void ieee80211_purge_sta_txqs(struct sta_info *sta); 2650 void ieee80211_txq_remove_vlan(struct ieee80211_local *local, 2651 struct ieee80211_sub_if_data *sdata); 2652 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 2653 struct txq_info *txqi); 2654 void ieee80211_wake_txqs(struct tasklet_struct *t); 2655 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, 2656 u16 transaction, u16 auth_alg, u16 status, 2657 const u8 *extra, size_t extra_len, const u8 *bssid, 2658 const u8 *da, const u8 *key, u8 key_len, u8 key_idx, 2659 u32 tx_flags); 2660 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, 2661 const u8 *da, const u8 *bssid, 2662 u16 stype, u16 reason, 2663 bool send_frame, u8 *frame_buf); 2664 2665 enum { 2666 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0), 2667 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1), 2668 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2), 2669 }; 2670 2671 int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer, 2672 size_t buffer_len, 2673 struct ieee80211_scan_ies *ie_desc, 2674 const u8 *ie, size_t ie_len, 2675 u8 bands_used, u32 *rate_masks, 2676 struct cfg80211_chan_def *chandef, 2677 u32 flags); 2678 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, 2679 const u8 *src, const u8 *dst, 2680 u32 ratemask, 2681 struct ieee80211_channel *chan, 2682 const u8 *ssid, size_t ssid_len, 2683 const u8 *ie, size_t ie_len, 2684 u32 flags); 2685 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, 2686 struct ieee802_11_elems *elems, 2687 enum nl80211_band band, u32 *basic_rates); 2688 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2689 struct ieee80211_link_data *link, 2690 enum ieee80211_smps_mode smps_mode); 2691 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata, 2692 struct ieee80211_link_data *link); 2693 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata, 2694 int link_id); 2695 2696 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset); 2697 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 2698 u16 cap); 2699 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 2700 const struct cfg80211_chan_def *chandef, 2701 u16 prot_mode, bool rifs_mode); 2702 void ieee80211_ie_build_wide_bw_cs(u8 *pos, 2703 const struct cfg80211_chan_def *chandef); 2704 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2705 u32 cap); 2706 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2707 const struct cfg80211_chan_def *chandef); 2708 u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata); 2709 u8 *ieee80211_ie_build_he_oper(u8 *pos, const struct cfg80211_chan_def *chandef); 2710 u8 *ieee80211_ie_build_eht_oper(u8 *pos, const struct cfg80211_chan_def *chandef, 2711 const struct ieee80211_sta_eht_cap *eht_cap); 2712 int ieee80211_parse_bitrates(const struct ieee80211_supported_band *sband, 2713 const u8 *srates, int srates_len, u32 *rates); 2714 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo); 2715 void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata, 2716 struct ieee80211_sta_s1g_cap *caps, 2717 struct sk_buff *skb); 2718 void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata, 2719 struct sk_buff *skb); 2720 2721 /* element building in SKBs */ 2722 int ieee80211_put_srates_elem(struct sk_buff *skb, 2723 const struct ieee80211_supported_band *sband, 2724 u32 basic_rates, u32 masked_rates, 2725 u8 element_id); 2726 int ieee80211_put_he_cap(struct sk_buff *skb, 2727 struct ieee80211_sub_if_data *sdata, 2728 const struct ieee80211_supported_band *sband, 2729 const struct ieee80211_conn_settings *conn); 2730 int ieee80211_put_he_6ghz_cap(struct sk_buff *skb, 2731 struct ieee80211_sub_if_data *sdata, 2732 enum ieee80211_smps_mode smps_mode); 2733 int ieee80211_put_eht_cap(struct sk_buff *skb, 2734 struct ieee80211_sub_if_data *sdata, 2735 const struct ieee80211_supported_band *sband, 2736 const struct ieee80211_conn_settings *conn); 2737 int ieee80211_put_uhr_cap(struct sk_buff *skb, 2738 struct ieee80211_sub_if_data *sdata, 2739 const struct ieee80211_supported_band *sband); 2740 int ieee80211_put_reg_conn(struct sk_buff *skb, 2741 enum ieee80211_channel_flags flags); 2742 2743 /* channel management */ 2744 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper, 2745 struct cfg80211_chan_def *chandef); 2746 bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info, 2747 const struct ieee80211_vht_operation *oper, 2748 const struct ieee80211_ht_operation *htop, 2749 struct cfg80211_chan_def *chandef); 2750 void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation_info *info, 2751 struct cfg80211_chan_def *chandef); 2752 bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_local *local, 2753 const struct ieee80211_he_operation *he_oper, 2754 const struct ieee80211_eht_operation *eht_oper, 2755 struct cfg80211_chan_def *chandef); 2756 bool ieee80211_chandef_s1g_oper(struct ieee80211_local *local, 2757 const struct ieee80211_s1g_oper_ie *oper, 2758 struct cfg80211_chan_def *chandef); 2759 void ieee80211_chandef_downgrade(struct cfg80211_chan_def *chandef, 2760 struct ieee80211_conn_settings *conn); 2761 static inline void 2762 ieee80211_chanreq_downgrade(struct ieee80211_chan_req *chanreq, 2763 struct ieee80211_conn_settings *conn) 2764 { 2765 ieee80211_chandef_downgrade(&chanreq->oper, conn); 2766 if (WARN_ON(!conn)) 2767 return; 2768 if (conn->mode < IEEE80211_CONN_MODE_EHT) 2769 chanreq->ap.chan = NULL; 2770 } 2771 2772 bool ieee80211_chanreq_identical(const struct ieee80211_chan_req *a, 2773 const struct ieee80211_chan_req *b); 2774 2775 int __must_check 2776 _ieee80211_link_use_channel(struct ieee80211_link_data *link, 2777 const struct ieee80211_chan_req *req, 2778 enum ieee80211_chanctx_mode mode, 2779 bool assign_on_failure); 2780 2781 static inline int __must_check 2782 ieee80211_link_use_channel(struct ieee80211_link_data *link, 2783 const struct ieee80211_chan_req *req, 2784 enum ieee80211_chanctx_mode mode) 2785 { 2786 return _ieee80211_link_use_channel(link, req, mode, false); 2787 } 2788 2789 int __must_check 2790 ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link, 2791 const struct ieee80211_chan_req *req, 2792 enum ieee80211_chanctx_mode mode, 2793 bool radar_required); 2794 int __must_check 2795 ieee80211_link_use_reserved_context(struct ieee80211_link_data *link); 2796 void ieee80211_link_unreserve_chanctx(struct ieee80211_link_data *link); 2797 2798 int __must_check 2799 ieee80211_link_change_chanreq(struct ieee80211_link_data *link, 2800 const struct ieee80211_chan_req *req, 2801 u64 *changed); 2802 void __ieee80211_link_release_channel(struct ieee80211_link_data *link, 2803 bool skip_idle_recalc); 2804 void ieee80211_link_release_channel(struct ieee80211_link_data *link); 2805 void ieee80211_link_vlan_copy_chanctx(struct ieee80211_link_data *link); 2806 void ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link, 2807 bool clear); 2808 int ieee80211_chanctx_refcount(struct ieee80211_local *local, 2809 struct ieee80211_chanctx *ctx); 2810 2811 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local, 2812 struct ieee80211_chanctx *chanctx); 2813 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local, 2814 struct ieee80211_chanctx *ctx); 2815 bool ieee80211_is_radar_required(struct ieee80211_local *local, 2816 struct cfg80211_scan_request *req); 2817 bool ieee80211_is_radio_idx_in_scan_req(struct wiphy *wiphy, 2818 struct cfg80211_scan_request *scan_req, 2819 int radio_idx); 2820 2821 void ieee80211_dfs_cac_timer_work(struct wiphy *wiphy, struct wiphy_work *work); 2822 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local, 2823 struct ieee80211_chanctx *chanctx); 2824 void ieee80211_dfs_radar_detected_work(struct wiphy *wiphy, 2825 struct wiphy_work *work); 2826 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, 2827 struct cfg80211_csa_settings *csa_settings); 2828 void ieee80211_recalc_sb_count(struct ieee80211_sub_if_data *sdata, u64 tsf); 2829 void ieee80211_recalc_dtim(struct ieee80211_sub_if_data *sdata, u64 tsf); 2830 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, 2831 const struct cfg80211_chan_def *chandef, 2832 enum ieee80211_chanctx_mode chanmode, 2833 u8 radar_detect, int radio_idx); 2834 int ieee80211_max_num_channels(struct ieee80211_local *local, int radio_idx); 2835 u32 ieee80211_get_radio_mask(struct wiphy *wiphy, struct net_device *dev); 2836 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local, 2837 struct ieee80211_chanctx *ctx); 2838 struct ieee80211_chanctx * 2839 ieee80211_find_or_create_chanctx(struct ieee80211_sub_if_data *sdata, 2840 const struct ieee80211_chan_req *chanreq, 2841 enum ieee80211_chanctx_mode mode, 2842 bool assign_on_failure, 2843 bool *reused_ctx); 2844 void ieee80211_free_chanctx(struct ieee80211_local *local, 2845 struct ieee80211_chanctx *ctx, 2846 bool skip_idle_recalc); 2847 int ieee80211_chanctx_num_assigned(struct ieee80211_local *local, 2848 struct ieee80211_chanctx *ctx); 2849 /* TDLS */ 2850 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 2851 const u8 *peer, int link_id, 2852 u8 action_code, u8 dialog_token, u16 status_code, 2853 u32 peer_capability, bool initiator, 2854 const u8 *extra_ies, size_t extra_ies_len); 2855 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 2856 const u8 *peer, enum nl80211_tdls_operation oper); 2857 void ieee80211_tdls_peer_del_work(struct wiphy *wiphy, struct wiphy_work *wk); 2858 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev, 2859 const u8 *addr, u8 oper_class, 2860 struct cfg80211_chan_def *chandef); 2861 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy, 2862 struct net_device *dev, 2863 const u8 *addr); 2864 void ieee80211_teardown_tdls_peers(struct ieee80211_link_data *link); 2865 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata, 2866 const u8 *peer, u16 reason); 2867 void 2868 ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata, 2869 struct sk_buff *skb); 2870 2871 2872 const char *ieee80211_get_reason_code_string(u16 reason_code); 2873 u16 ieee80211_encode_usf(int val); 2874 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, 2875 enum nl80211_iftype type); 2876 2877 extern const struct ethtool_ops ieee80211_ethtool_ops; 2878 2879 u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw, 2880 struct ieee80211_vif *vif, 2881 struct ieee80211_sta *pubsta, 2882 int len, bool ampdu); 2883 #ifdef CONFIG_MAC80211_NOINLINE 2884 #define debug_noinline noinline 2885 #else 2886 #define debug_noinline 2887 #endif 2888 2889 void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache); 2890 void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache); 2891 2892 u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata); 2893 2894 void ieee80211_rx_eml_op_mode_notif(struct ieee80211_sub_if_data *sdata, 2895 struct sk_buff *skb); 2896 void 2897 ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata, 2898 struct ieee80211_supported_band *sband, 2899 const u8 *he_cap_ie, u8 he_cap_len, 2900 const struct ieee80211_eht_cap_elem *eht_cap_ie_elem, 2901 u8 eht_cap_len, 2902 struct link_sta_info *link_sta); 2903 void ieee80211_process_neg_ttlm_req(struct ieee80211_sub_if_data *sdata, 2904 struct ieee80211_mgmt *mgmt, size_t len); 2905 void ieee80211_process_neg_ttlm_res(struct ieee80211_sub_if_data *sdata, 2906 struct ieee80211_mgmt *mgmt, size_t len); 2907 int ieee80211_req_neg_ttlm(struct ieee80211_sub_if_data *sdata, 2908 struct cfg80211_ttlm_params *params); 2909 void ieee80211_process_ttlm_teardown(struct ieee80211_sub_if_data *sdata); 2910 2911 void ieee80211_check_wbrf_support(struct ieee80211_local *local); 2912 void ieee80211_add_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef); 2913 void ieee80211_remove_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef); 2914 int ieee80211_mgd_set_epcs(struct ieee80211_sub_if_data *sdata, bool enable); 2915 void ieee80211_process_epcs_ena_resp(struct ieee80211_sub_if_data *sdata, 2916 struct ieee80211_mgmt *mgmt, size_t len); 2917 void ieee80211_process_epcs_teardown(struct ieee80211_sub_if_data *sdata, 2918 struct ieee80211_mgmt *mgmt, size_t len); 2919 2920 int ieee80211_mgd_assoc_ml_reconf(struct ieee80211_sub_if_data *sdata, 2921 struct cfg80211_ml_reconf_req *req); 2922 2923 void ieee80211_process_ml_reconf_resp(struct ieee80211_sub_if_data *sdata, 2924 struct ieee80211_mgmt *mgmt, size_t len); 2925 void ieee80211_stop_mbssid(struct ieee80211_sub_if_data *sdata); 2926 2927 void 2928 ieee80211_uhr_cap_ie_to_sta_uhr_cap(struct ieee80211_sub_if_data *sdata, 2929 struct ieee80211_supported_band *sband, 2930 const struct ieee80211_uhr_cap *uhr_cap, 2931 u8 uhr_cap_len, 2932 struct link_sta_info *link_sta); 2933 2934 #if IS_ENABLED(CONFIG_MAC80211_KUNIT_TEST) 2935 #define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym) EXPORT_SYMBOL_IF_KUNIT(sym) 2936 #define VISIBLE_IF_MAC80211_KUNIT 2937 ieee80211_rx_result 2938 ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx); 2939 int ieee80211_calc_chandef_subchan_offset(const struct cfg80211_chan_def *ap, 2940 u8 n_partial_subchans); 2941 void ieee80211_rearrange_tpe_psd(struct ieee80211_parsed_tpe_psd *psd, 2942 const struct cfg80211_chan_def *ap, 2943 const struct cfg80211_chan_def *used); 2944 struct ieee802_11_elems * 2945 ieee80211_determine_chan_mode(struct ieee80211_sub_if_data *sdata, 2946 struct ieee80211_conn_settings *conn, 2947 struct cfg80211_bss *cbss, int link_id, 2948 struct ieee80211_chan_req *chanreq, 2949 struct cfg80211_chan_def *ap_chandef, 2950 unsigned long *userspace_selectors); 2951 #else 2952 #define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym) 2953 #define VISIBLE_IF_MAC80211_KUNIT static 2954 #endif 2955 2956 #endif /* IEEE80211_I_H */ 2957