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 }; 260 261 struct ieee80211_csa_settings { 262 const u16 *counter_offsets_beacon; 263 const u16 *counter_offsets_presp; 264 265 int n_counter_offsets_beacon; 266 int n_counter_offsets_presp; 267 268 u8 count; 269 }; 270 271 struct ieee80211_color_change_settings { 272 u16 counter_offset_beacon; 273 u16 counter_offset_presp; 274 u8 count; 275 }; 276 277 struct beacon_data { 278 u8 *head, *tail; 279 int head_len, tail_len; 280 struct ieee80211_meshconf_ie *meshconf; 281 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM]; 282 u8 cntdwn_current_counter; 283 struct cfg80211_mbssid_elems *mbssid_ies; 284 struct cfg80211_rnr_elems *rnr_ies; 285 struct rcu_head rcu_head; 286 }; 287 288 struct probe_resp { 289 struct rcu_head rcu_head; 290 int len; 291 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM]; 292 u8 data[]; 293 }; 294 295 struct fils_discovery_data { 296 struct rcu_head rcu_head; 297 int len; 298 u8 data[]; 299 }; 300 301 struct unsol_bcast_probe_resp_data { 302 struct rcu_head rcu_head; 303 int len; 304 u8 data[]; 305 }; 306 307 struct s1g_short_beacon_data { 308 struct rcu_head rcu_head; 309 u8 *short_head; 310 u8 *short_tail; 311 int short_head_len; 312 int short_tail_len; 313 }; 314 315 struct ps_data { 316 /* yes, this looks ugly, but guarantees that we can later use 317 * bitmap_empty :) 318 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */ 319 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)] 320 __aligned(__alignof__(unsigned long)); 321 struct sk_buff_head bc_buf; 322 atomic_t num_sta_ps; /* number of stations in PS mode */ 323 int dtim_count; 324 bool dtim_bc_mc; 325 int sb_count; /* num short beacons til next long beacon */ 326 }; 327 328 struct ieee80211_if_ap { 329 struct list_head vlans; /* write-protected with RTNL and local->mtx */ 330 331 struct ps_data ps; 332 atomic_t num_mcast_sta; /* number of stations receiving multicast */ 333 334 bool multicast_to_unicast; 335 bool active; 336 }; 337 338 struct ieee80211_if_vlan { 339 struct list_head list; /* write-protected with RTNL and local->mtx */ 340 341 /* used for all tx if the VLAN is configured to 4-addr mode */ 342 struct sta_info __rcu *sta; 343 atomic_t num_mcast_sta; /* number of stations receiving multicast */ 344 }; 345 346 struct mesh_stats { 347 __u32 fwded_mcast; /* Mesh forwarded multicast frames */ 348 __u32 fwded_unicast; /* Mesh forwarded unicast frames */ 349 __u32 fwded_frames; /* Mesh total forwarded frames */ 350 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/ 351 __u32 dropped_frames_no_route; /* Not transmitted, no route found */ 352 }; 353 354 #define PREQ_Q_F_START 0x1 355 #define PREQ_Q_F_REFRESH 0x2 356 struct mesh_preq_queue { 357 struct list_head list; 358 u8 dst[ETH_ALEN]; 359 u8 flags; 360 }; 361 362 struct ieee80211_roc_work { 363 struct list_head list; 364 365 struct ieee80211_sub_if_data *sdata; 366 367 struct ieee80211_channel *chan; 368 369 bool started, abort, hw_begun, notified; 370 bool on_channel; 371 372 unsigned long start_time; 373 374 u32 duration, req_duration; 375 struct sk_buff *frame; 376 u64 cookie, mgmt_tx_cookie; 377 enum ieee80211_roc_type type; 378 }; 379 380 /* flags used in struct ieee80211_if_managed.flags */ 381 enum ieee80211_sta_flags { 382 IEEE80211_STA_CONNECTION_POLL = BIT(1), 383 IEEE80211_STA_CONTROL_PORT = BIT(2), 384 IEEE80211_STA_MFP_ENABLED = BIT(6), 385 IEEE80211_STA_UAPSD_ENABLED = BIT(7), 386 IEEE80211_STA_NULLFUNC_ACKED = BIT(8), 387 IEEE80211_STA_ENABLE_RRM = BIT(15), 388 }; 389 390 enum ieee80211_conn_mode { 391 IEEE80211_CONN_MODE_S1G, 392 IEEE80211_CONN_MODE_LEGACY, 393 IEEE80211_CONN_MODE_HT, 394 IEEE80211_CONN_MODE_VHT, 395 IEEE80211_CONN_MODE_HE, 396 IEEE80211_CONN_MODE_EHT, 397 IEEE80211_CONN_MODE_UHR, 398 }; 399 400 #define IEEE80211_CONN_MODE_HIGHEST IEEE80211_CONN_MODE_UHR 401 402 enum ieee80211_conn_bw_limit { 403 IEEE80211_CONN_BW_LIMIT_20, 404 IEEE80211_CONN_BW_LIMIT_40, 405 IEEE80211_CONN_BW_LIMIT_80, 406 IEEE80211_CONN_BW_LIMIT_160, /* also 80+80 */ 407 IEEE80211_CONN_BW_LIMIT_320, 408 }; 409 410 struct ieee80211_conn_settings { 411 enum ieee80211_conn_mode mode; 412 enum ieee80211_conn_bw_limit bw_limit; 413 }; 414 415 extern const struct ieee80211_conn_settings ieee80211_conn_settings_unlimited; 416 417 struct ieee80211_mgd_auth_data { 418 struct cfg80211_bss *bss; 419 unsigned long timeout; 420 int tries; 421 u16 algorithm, expected_transaction; 422 423 unsigned long userspace_selectors[BITS_TO_LONGS(128)]; 424 425 u8 key[WLAN_KEY_LEN_WEP104]; 426 u8 key_len, key_idx; 427 bool done, waiting; 428 bool peer_confirmed; 429 bool timeout_started; 430 int link_id; 431 432 u8 ap_addr[ETH_ALEN] __aligned(2); 433 434 u16 trans, status; 435 size_t data_len; 436 u8 data[]; 437 }; 438 439 struct ieee80211_mgd_assoc_data { 440 struct { 441 struct cfg80211_bss *bss; 442 443 u8 addr[ETH_ALEN] __aligned(2); 444 445 u8 ap_ht_param; 446 447 struct ieee80211_vht_cap ap_vht_cap; 448 449 size_t elems_len; 450 u8 *elems; /* pointing to inside ie[] below */ 451 452 struct ieee80211_conn_settings conn; 453 454 u16 status; 455 } link[IEEE80211_MLD_MAX_NUM_LINKS]; 456 457 u8 ap_addr[ETH_ALEN] __aligned(2); 458 459 /* this is for a workaround, so we use it only for non-MLO */ 460 const u8 *supp_rates; 461 u8 supp_rates_len; 462 463 unsigned long timeout; 464 int tries; 465 466 u8 prev_ap_addr[ETH_ALEN]; 467 u8 ssid[IEEE80211_MAX_SSID_LEN]; 468 u8 ssid_len; 469 bool wmm, uapsd; 470 bool need_beacon; 471 bool synced; 472 bool timeout_started; 473 bool comeback; /* whether the AP has requested association comeback */ 474 bool s1g; 475 bool spp_amsdu; 476 477 s8 assoc_link_id; 478 479 __le16 ext_mld_capa_ops; 480 481 u8 fils_nonces[2 * FILS_NONCE_LEN]; 482 u8 fils_kek[FILS_MAX_KEK_LEN]; 483 size_t fils_kek_len; 484 485 size_t ie_len; 486 u8 *ie_pos; /* used to fill ie[] with link[].elems */ 487 u8 ie[]; 488 }; 489 490 struct ieee80211_sta_tx_tspec { 491 /* timestamp of the first packet in the time slice */ 492 unsigned long time_slice_start; 493 494 u32 admitted_time; /* in usecs, unlike over the air */ 495 u8 tsid; 496 s8 up; /* signed to be able to invalidate with -1 during teardown */ 497 498 /* consumed TX time in microseconds in the time slice */ 499 u32 consumed_tx_time; 500 enum { 501 TX_TSPEC_ACTION_NONE = 0, 502 TX_TSPEC_ACTION_DOWNGRADE, 503 TX_TSPEC_ACTION_STOP_DOWNGRADE, 504 } action; 505 bool downgraded; 506 }; 507 508 /* Advertised TID-to-link mapping info */ 509 struct ieee80211_adv_ttlm_info { 510 /* time in TUs at which the new mapping is established, or 0 if there is 511 * no planned advertised TID-to-link mapping 512 */ 513 u16 switch_time; 514 u32 duration; /* duration of the planned T2L map in TUs */ 515 u16 map; /* map of usable links for all TIDs */ 516 bool active; /* whether the advertised mapping is active or not */ 517 }; 518 519 DECLARE_EWMA(beacon_signal, 4, 4) 520 521 struct ieee80211_if_managed { 522 struct timer_list timer; 523 struct timer_list conn_mon_timer; 524 struct timer_list bcn_mon_timer; 525 struct wiphy_work monitor_work; 526 struct wiphy_work beacon_connection_loss_work; 527 struct wiphy_work csa_connection_drop_work; 528 529 unsigned long beacon_timeout; 530 unsigned long probe_timeout; 531 int probe_send_count; 532 bool nullfunc_failed; 533 u8 connection_loss:1, 534 driver_disconnect:1, 535 reconnect:1, 536 associated:1; 537 538 struct ieee80211_mgd_auth_data *auth_data; 539 struct ieee80211_mgd_assoc_data *assoc_data; 540 541 unsigned long userspace_selectors[BITS_TO_LONGS(128)]; 542 543 bool powersave; /* powersave requested for this iface */ 544 bool broken_ap; /* AP is broken -- turn off powersave */ 545 546 unsigned int flags; 547 548 u16 mcast_seq_last; 549 550 bool status_acked; 551 bool status_received; 552 __le16 status_fc; 553 554 enum { 555 IEEE80211_MFP_DISABLED, 556 IEEE80211_MFP_OPTIONAL, 557 IEEE80211_MFP_REQUIRED 558 } mfp; /* management frame protection */ 559 560 /* 561 * Bitmask of enabled u-apsd queues, 562 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association 563 * to take effect. 564 */ 565 unsigned int uapsd_queues; 566 567 /* 568 * Maximum number of buffered frames AP can deliver during a 569 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar. 570 * Needs a new association to take effect. 571 */ 572 unsigned int uapsd_max_sp_len; 573 574 u8 use_4addr; 575 576 /* 577 * State variables for keeping track of RSSI of the AP currently 578 * connected to and informing driver when RSSI has gone 579 * below/above a certain threshold. 580 */ 581 int rssi_min_thold, rssi_max_thold; 582 583 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ 584 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ 585 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */ 586 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */ 587 struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */ 588 struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */ 589 590 /* TDLS support */ 591 u8 tdls_peer[ETH_ALEN] __aligned(2); 592 struct wiphy_delayed_work tdls_peer_del_work; 593 struct sk_buff *orig_teardown_skb; /* The original teardown skb */ 594 struct sk_buff *teardown_skb; /* A copy to send through the AP */ 595 spinlock_t teardown_lock; /* To lock changing teardown_skb */ 596 bool tdls_wider_bw_prohibited; 597 598 /* WMM-AC TSPEC support */ 599 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS]; 600 /* Use a separate work struct so that we can do something here 601 * while the sdata->work is flushing the queues, for example. 602 * otherwise, in scenarios where we hardly get any traffic out 603 * on the BE queue, but there's a lot of VO traffic, we might 604 * get stuck in a downgraded situation and flush takes forever. 605 */ 606 struct wiphy_delayed_work tx_tspec_wk; 607 608 /* Information elements from the last transmitted (Re)Association 609 * Request frame. 610 */ 611 u8 *assoc_req_ies; 612 size_t assoc_req_ies_len; 613 614 struct wiphy_hrtimer_work ml_reconf_work; 615 u16 removed_links; 616 617 /* TID-to-link mapping support */ 618 struct wiphy_hrtimer_work ttlm_work; 619 struct ieee80211_adv_ttlm_info ttlm_info; 620 struct wiphy_work teardown_ttlm_work; 621 622 /* dialog token enumerator for neg TTLM request */ 623 u8 dialog_token_alloc; 624 struct wiphy_delayed_work neg_ttlm_timeout_work; 625 626 /* Locally initiated multi-link reconfiguration */ 627 struct { 628 struct ieee80211_mgd_assoc_data *add_links_data; 629 struct wiphy_delayed_work wk; 630 u16 removed_links; 631 u16 added_links; 632 u8 dialog_token; 633 } reconf; 634 635 /* Support for epcs */ 636 struct { 637 bool enabled; 638 u8 dialog_token; 639 } epcs; 640 }; 641 642 struct ieee80211_if_ibss { 643 struct timer_list timer; 644 struct wiphy_work csa_connection_drop_work; 645 646 unsigned long last_scan_completed; 647 648 u32 basic_rates; 649 650 bool fixed_bssid; 651 bool fixed_channel; 652 bool privacy; 653 654 bool control_port; 655 bool userspace_handles_dfs; 656 657 u8 bssid[ETH_ALEN] __aligned(2); 658 u8 ssid[IEEE80211_MAX_SSID_LEN]; 659 u8 ssid_len, ie_len; 660 u8 *ie; 661 struct cfg80211_chan_def chandef; 662 663 unsigned long ibss_join_req; 664 /* probe response/beacon for IBSS */ 665 struct beacon_data __rcu *presp; 666 667 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ 668 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ 669 670 spinlock_t incomplete_lock; 671 struct list_head incomplete_stations; 672 673 enum { 674 IEEE80211_IBSS_MLME_SEARCH, 675 IEEE80211_IBSS_MLME_JOINED, 676 } state; 677 }; 678 679 /** 680 * struct ieee80211_if_ocb - OCB mode state 681 * 682 * @housekeeping_timer: timer for periodic invocation of a housekeeping task 683 * @wrkq_flags: OCB deferred task action 684 * @incomplete_lock: delayed STA insertion lock 685 * @incomplete_stations: list of STAs waiting for delayed insertion 686 * @joined: indication if the interface is connected to an OCB network 687 */ 688 struct ieee80211_if_ocb { 689 struct timer_list housekeeping_timer; 690 unsigned long wrkq_flags; 691 692 spinlock_t incomplete_lock; 693 struct list_head incomplete_stations; 694 695 bool joined; 696 }; 697 698 /** 699 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface 700 * 701 * these declarations define the interface, which enables 702 * vendor-specific mesh synchronization 703 * 704 * @rx_bcn_presp: beacon/probe response was received 705 * @adjust_tsf: TSF adjustment method 706 */ 707 struct ieee80211_mesh_sync_ops { 708 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, u16 stype, 709 struct ieee80211_mgmt *mgmt, unsigned int len, 710 const struct ieee80211_meshconf_ie *mesh_cfg, 711 struct ieee80211_rx_status *rx_status); 712 713 /* should be called with beacon_data under RCU read lock */ 714 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata, 715 struct beacon_data *beacon); 716 /* add other framework functions here */ 717 }; 718 719 struct mesh_csa_settings { 720 struct rcu_head rcu_head; 721 struct cfg80211_csa_settings settings; 722 }; 723 724 /** 725 * struct mesh_table - mesh hash table 726 * 727 * @known_gates: list of known mesh gates and their mpaths by the station. The 728 * gate's mpath may or may not be resolved and active. 729 * @gates_lock: protects updates to known_gates 730 * @rhead: the rhashtable containing struct mesh_paths, keyed by dest addr 731 * @walk_head: linked list containing all mesh_path objects 732 * @walk_lock: lock protecting walk_head 733 * @entries: number of entries in the table 734 */ 735 struct mesh_table { 736 struct hlist_head known_gates; 737 spinlock_t gates_lock; 738 struct rhashtable rhead; 739 struct hlist_head walk_head; 740 spinlock_t walk_lock; 741 atomic_t entries; /* Up to MAX_MESH_NEIGHBOURS */ 742 }; 743 744 /** 745 * struct mesh_tx_cache - mesh fast xmit header cache 746 * 747 * @rht: hash table containing struct ieee80211_mesh_fast_tx, using skb DA as key 748 * @walk_head: linked list containing all ieee80211_mesh_fast_tx objects 749 * @walk_lock: lock protecting walk_head and rht 750 */ 751 struct mesh_tx_cache { 752 struct rhashtable rht; 753 struct hlist_head walk_head; 754 spinlock_t walk_lock; 755 }; 756 757 struct ieee80211_if_mesh { 758 struct timer_list housekeeping_timer; 759 struct timer_list mesh_path_timer; 760 struct timer_list mesh_path_root_timer; 761 762 unsigned long wrkq_flags; 763 unsigned long mbss_changed[64 / BITS_PER_LONG]; 764 765 bool userspace_handles_dfs; 766 767 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN]; 768 size_t mesh_id_len; 769 /* Active Path Selection Protocol Identifier */ 770 u8 mesh_pp_id; 771 /* Active Path Selection Metric Identifier */ 772 u8 mesh_pm_id; 773 /* Congestion Control Mode Identifier */ 774 u8 mesh_cc_id; 775 /* Synchronization Protocol Identifier */ 776 u8 mesh_sp_id; 777 /* Authentication Protocol Identifier */ 778 u8 mesh_auth_id; 779 /* Local mesh Sequence Number */ 780 u32 sn; 781 /* Last used PREQ ID */ 782 u32 preq_id; 783 atomic_t mpaths; 784 /* Timestamp of last SN update */ 785 unsigned long last_sn_update; 786 /* Time when it's ok to send next PERR */ 787 unsigned long next_perr; 788 /* Timestamp of last PREQ sent */ 789 unsigned long last_preq; 790 struct mesh_rmc *rmc; 791 spinlock_t mesh_preq_queue_lock; 792 struct mesh_preq_queue preq_queue; 793 int preq_queue_len; 794 struct mesh_stats mshstats; 795 struct mesh_config mshcfg; 796 atomic_t estab_plinks; 797 atomic_t mesh_seqnum; 798 bool accepting_plinks; 799 int num_gates; 800 struct beacon_data __rcu *beacon; 801 const u8 *ie; 802 u8 ie_len; 803 enum { 804 IEEE80211_MESH_SEC_NONE = 0x0, 805 IEEE80211_MESH_SEC_AUTHED = 0x1, 806 IEEE80211_MESH_SEC_SECURED = 0x2, 807 } security; 808 bool user_mpm; 809 /* Extensible Synchronization Framework */ 810 const struct ieee80211_mesh_sync_ops *sync_ops; 811 s64 sync_offset_clockdrift_max; 812 spinlock_t sync_offset_lock; 813 /* mesh power save */ 814 enum nl80211_mesh_power_mode nonpeer_pm; 815 int ps_peers_light_sleep; 816 int ps_peers_deep_sleep; 817 struct ps_data ps; 818 /* Channel Switching Support */ 819 struct mesh_csa_settings __rcu *csa; 820 enum { 821 IEEE80211_MESH_CSA_ROLE_NONE, 822 IEEE80211_MESH_CSA_ROLE_INIT, 823 IEEE80211_MESH_CSA_ROLE_REPEATER, 824 } csa_role; 825 u8 chsw_ttl; 826 u16 pre_value; 827 828 /* offset from skb->data while building IE */ 829 int meshconf_offset; 830 831 struct mesh_table mesh_paths; 832 struct mesh_table mpp_paths; /* Store paths for MPP&MAP */ 833 int mesh_paths_generation; 834 int mpp_paths_generation; 835 struct mesh_tx_cache tx_cache; 836 }; 837 838 #ifdef CONFIG_MAC80211_MESH 839 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ 840 do { (msh)->mshstats.name++; } while (0) 841 #else 842 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ 843 do { } while (0) 844 #endif 845 846 /** 847 * enum ieee80211_sub_if_data_flags - virtual interface flags 848 * 849 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets 850 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between 851 * associated stations and deliver multicast frames both 852 * back to wireless media and to the local net stack. 853 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume. 854 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver 855 * @IEEE80211_SDATA_DISCONNECT_HW_RESTART: Disconnect after hardware restart 856 * recovery 857 */ 858 enum ieee80211_sub_if_data_flags { 859 IEEE80211_SDATA_ALLMULTI = BIT(0), 860 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3), 861 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4), 862 IEEE80211_SDATA_IN_DRIVER = BIT(5), 863 IEEE80211_SDATA_DISCONNECT_HW_RESTART = BIT(6), 864 }; 865 866 /** 867 * enum ieee80211_sdata_state_bits - virtual interface state bits 868 * @SDATA_STATE_RUNNING: virtual interface is up & running; this 869 * mirrors netif_running() but is separate for interface type 870 * change handling while the interface is up 871 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel 872 * mode, so queues are stopped 873 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due 874 * to offchannel, reset when offchannel returns 875 */ 876 enum ieee80211_sdata_state_bits { 877 SDATA_STATE_RUNNING, 878 SDATA_STATE_OFFCHANNEL, 879 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, 880 }; 881 882 /** 883 * enum ieee80211_chanctx_mode - channel context configuration mode 884 * 885 * @IEEE80211_CHANCTX_SHARED: channel context may be used by 886 * multiple interfaces 887 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used 888 * only by a single interface. This can be used for example for 889 * non-fixed channel IBSS. 890 */ 891 enum ieee80211_chanctx_mode { 892 IEEE80211_CHANCTX_SHARED, 893 IEEE80211_CHANCTX_EXCLUSIVE 894 }; 895 896 /** 897 * enum ieee80211_chanctx_replace_state - channel context replacement state 898 * 899 * This is used for channel context in-place reservations that require channel 900 * context switch/swap. 901 * 902 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place 903 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced 904 * by a (not yet registered) channel context pointed by %replace_ctx. 905 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context 906 * replaces an existing channel context pointed to by %replace_ctx. 907 */ 908 enum ieee80211_chanctx_replace_state { 909 IEEE80211_CHANCTX_REPLACE_NONE, 910 IEEE80211_CHANCTX_WILL_BE_REPLACED, 911 IEEE80211_CHANCTX_REPLACES_OTHER, 912 }; 913 914 struct ieee80211_chanctx { 915 struct list_head list; 916 struct rcu_head rcu_head; 917 918 enum ieee80211_chanctx_replace_state replace_state; 919 struct ieee80211_chanctx *replace_ctx; 920 921 enum ieee80211_chanctx_mode mode; 922 bool driver_present; 923 924 /* temporary data for search algorithm etc. */ 925 struct ieee80211_chan_req req; 926 927 bool radar_detected; 928 929 /* MUST be last - ends in a flexible-array member. */ 930 struct ieee80211_chanctx_conf conf; 931 }; 932 933 struct mac80211_qos_map { 934 struct cfg80211_qos_map qos_map; 935 struct rcu_head rcu_head; 936 }; 937 938 enum txq_info_flags { 939 IEEE80211_TXQ_STOP, 940 IEEE80211_TXQ_AMPDU, 941 IEEE80211_TXQ_NO_AMSDU, 942 IEEE80211_TXQ_DIRTY, 943 }; 944 945 /** 946 * struct txq_info - per tid queue 947 * 948 * @tin: contains packets split into multiple flows 949 * @def_cvars: codel vars for the @tin's default_flow 950 * @cstats: code statistics for this queue 951 * @frags: used to keep fragments created after dequeue 952 * @schedule_order: used with ieee80211_local->active_txqs 953 * @schedule_round: counter to prevent infinite loops on TXQ scheduling 954 * @flags: TXQ flags from &enum txq_info_flags 955 * @txq: the driver visible part 956 */ 957 struct txq_info { 958 struct fq_tin tin; 959 struct codel_vars def_cvars; 960 struct codel_stats cstats; 961 962 u16 schedule_round; 963 struct list_head schedule_order; 964 965 struct sk_buff_head frags; 966 967 unsigned long flags; 968 969 /* keep last! */ 970 struct ieee80211_txq txq; 971 }; 972 973 struct ieee80211_if_mntr { 974 u32 flags; 975 u8 mu_follow_addr[ETH_ALEN] __aligned(2); 976 977 struct list_head list; 978 }; 979 980 /** 981 * struct ieee80211_if_nan - NAN state 982 * 983 * @conf: current NAN configuration 984 * @started: true iff NAN is started 985 * @func_lock: lock for @func_inst_ids 986 * @function_inst_ids: a bitmap of available instance_id's 987 */ 988 struct ieee80211_if_nan { 989 struct cfg80211_nan_conf conf; 990 bool started; 991 992 /* protects function_inst_ids */ 993 spinlock_t func_lock; 994 struct idr function_inst_ids; 995 }; 996 997 struct ieee80211_link_data_managed { 998 u8 bssid[ETH_ALEN] __aligned(2); 999 1000 u8 dtim_period; 1001 enum ieee80211_smps_mode req_smps, /* requested smps mode */ 1002 driver_smps_mode; /* smps mode request */ 1003 1004 struct ieee80211_conn_settings conn; 1005 1006 s16 p2p_noa_index; 1007 1008 bool tdls_chan_switch_prohibited; 1009 1010 bool have_beacon; 1011 bool tracking_signal_avg; 1012 bool disable_wmm_tracking; 1013 bool operating_11g_mode; 1014 1015 struct { 1016 struct wiphy_hrtimer_work switch_work; 1017 struct cfg80211_chan_def ap_chandef; 1018 struct ieee80211_parsed_tpe tpe; 1019 ktime_t time; 1020 bool waiting_bcn; 1021 bool ignored_same_chan; 1022 bool blocked_tx; 1023 } csa; 1024 1025 struct wiphy_work request_smps_work; 1026 /* used to reconfigure hardware SM PS */ 1027 struct wiphy_work recalc_smps; 1028 1029 bool beacon_crc_valid; 1030 u32 beacon_crc; 1031 struct ewma_beacon_signal ave_beacon_signal; 1032 int last_ave_beacon_signal; 1033 1034 /* 1035 * Number of Beacon frames used in ave_beacon_signal. This can be used 1036 * to avoid generating less reliable cqm events that would be based 1037 * only on couple of received frames. 1038 */ 1039 unsigned int count_beacon_signal; 1040 1041 /* Number of times beacon loss was invoked. */ 1042 unsigned int beacon_loss_count; 1043 1044 /* 1045 * Last Beacon frame signal strength average (ave_beacon_signal / 16) 1046 * that triggered a cqm event. 0 indicates that no event has been 1047 * generated for the current association. 1048 */ 1049 int last_cqm_event_signal; 1050 1051 int wmm_last_param_set; 1052 int mu_edca_last_param_set; 1053 }; 1054 1055 struct ieee80211_link_data_ap { 1056 struct beacon_data __rcu *beacon; 1057 struct probe_resp __rcu *probe_resp; 1058 struct fils_discovery_data __rcu *fils_discovery; 1059 struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp; 1060 struct s1g_short_beacon_data __rcu *s1g_short_beacon; 1061 1062 /* to be used after channel switch. */ 1063 struct cfg80211_beacon_data *next_beacon; 1064 }; 1065 1066 struct ieee80211_link_data { 1067 struct ieee80211_sub_if_data *sdata; 1068 unsigned int link_id; 1069 1070 /* multicast keys only */ 1071 struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS + 1072 NUM_DEFAULT_MGMT_KEYS + 1073 NUM_DEFAULT_BEACON_KEYS]; 1074 struct ieee80211_key __rcu *default_multicast_key; 1075 struct ieee80211_key __rcu *default_mgmt_key; 1076 struct ieee80211_key __rcu *default_beacon_key; 1077 1078 1079 bool operating_11g_mode; 1080 1081 struct { 1082 struct wiphy_work finalize_work; 1083 struct ieee80211_chan_req chanreq; 1084 } csa; 1085 1086 struct wiphy_work color_change_finalize_work; 1087 struct wiphy_delayed_work color_collision_detect_work; 1088 u64 color_bitmap; 1089 1090 /* context reservation -- protected with wiphy mutex */ 1091 struct ieee80211_chanctx *reserved_chanctx; 1092 struct ieee80211_chan_req reserved; 1093 bool reserved_radar_required; 1094 bool reserved_ready; 1095 1096 u8 needed_rx_chains; 1097 enum ieee80211_smps_mode smps_mode; 1098 1099 int user_power_level; /* in dBm */ 1100 int ap_power_level; /* in dBm */ 1101 1102 bool radar_required; 1103 struct wiphy_hrtimer_work dfs_cac_timer_work; 1104 1105 union { 1106 struct ieee80211_link_data_managed mgd; 1107 struct ieee80211_link_data_ap ap; 1108 } u; 1109 1110 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS]; 1111 1112 struct ieee80211_bss_conf *conf; 1113 1114 #ifdef CONFIG_MAC80211_DEBUGFS 1115 struct dentry *debugfs_dir; 1116 #endif 1117 }; 1118 1119 struct ieee80211_sub_if_data { 1120 struct list_head list; 1121 1122 struct wireless_dev wdev; 1123 1124 /* keys */ 1125 struct list_head key_list; 1126 1127 /* count for keys needing tailroom space allocation */ 1128 int crypto_tx_tailroom_needed_cnt; 1129 int crypto_tx_tailroom_pending_dec; 1130 struct wiphy_delayed_work dec_tailroom_needed_wk; 1131 1132 struct net_device *dev; 1133 struct ieee80211_local *local; 1134 1135 unsigned int flags; 1136 1137 unsigned long state; 1138 1139 char name[IFNAMSIZ]; 1140 1141 struct ieee80211_fragment_cache frags; 1142 1143 /* TID bitmap for NoAck policy */ 1144 u16 noack_map; 1145 1146 /* bit field of ACM bits (BIT(802.1D tag)) */ 1147 u8 wmm_acm; 1148 1149 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS]; 1150 struct ieee80211_key __rcu *default_unicast_key; 1151 1152 u16 sequence_number; 1153 u16 mld_mcast_seq; 1154 __be16 control_port_protocol; 1155 bool control_port_no_encrypt; 1156 bool control_port_no_preauth; 1157 bool control_port_over_nl80211; 1158 1159 atomic_t num_tx_queued; 1160 struct mac80211_qos_map __rcu *qos_map; 1161 1162 struct wiphy_work work; 1163 struct sk_buff_head skb_queue; 1164 struct sk_buff_head status_queue; 1165 1166 /* 1167 * AP this belongs to: self in AP mode and 1168 * corresponding AP in VLAN mode, NULL for 1169 * all others (might be needed later in IBSS) 1170 */ 1171 struct ieee80211_if_ap *bss; 1172 1173 /* bitmap of allowed (non-MCS) rate indexes for rate control */ 1174 u32 rc_rateidx_mask[NUM_NL80211_BANDS]; 1175 1176 bool rc_has_mcs_mask[NUM_NL80211_BANDS]; 1177 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN]; 1178 1179 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS]; 1180 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX]; 1181 1182 /* Beacon frame (non-MCS) rate (as a bitmap) */ 1183 u32 beacon_rateidx_mask[NUM_NL80211_BANDS]; 1184 bool beacon_rate_set; 1185 1186 union { 1187 struct ieee80211_if_ap ap; 1188 struct ieee80211_if_vlan vlan; 1189 struct ieee80211_if_managed mgd; 1190 struct ieee80211_if_ibss ibss; 1191 struct ieee80211_if_mesh mesh; 1192 struct ieee80211_if_ocb ocb; 1193 struct ieee80211_if_mntr mntr; 1194 struct ieee80211_if_nan nan; 1195 } u; 1196 1197 struct ieee80211_link_data deflink; 1198 struct ieee80211_link_data __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS]; 1199 1200 /* for ieee80211_set_active_links_async() */ 1201 struct wiphy_work activate_links_work; 1202 u16 desired_active_links; 1203 1204 u16 restart_active_links; 1205 1206 #ifdef CONFIG_MAC80211_DEBUGFS 1207 struct { 1208 struct dentry *subdir_stations; 1209 struct dentry *default_unicast_key; 1210 struct dentry *default_multicast_key; 1211 struct dentry *default_mgmt_key; 1212 struct dentry *default_beacon_key; 1213 } debugfs; 1214 #endif 1215 1216 u32 tx_handlers_drop; 1217 /* must be last, dynamically sized area in this! */ 1218 struct ieee80211_vif vif; 1219 }; 1220 1221 static inline 1222 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p) 1223 { 1224 return container_of(p, struct ieee80211_sub_if_data, vif); 1225 } 1226 1227 #define sdata_dereference(p, sdata) \ 1228 wiphy_dereference(sdata->local->hw.wiphy, p) 1229 1230 #define for_each_sdata_link(_local, _link) \ 1231 /* outer loop just to define the variables ... */ \ 1232 for (struct ieee80211_sub_if_data *___sdata = NULL; \ 1233 !___sdata; \ 1234 ___sdata = (void *)~0 /* always stop */) \ 1235 for (int ___link_id = ARRAY_SIZE(___sdata->link); \ 1236 ___link_id; ___link_id = 0 /* always stop */) \ 1237 list_for_each_entry(___sdata, &(_local)->interfaces, list) \ 1238 if (___link_id == ARRAY_SIZE(___sdata->link) && \ 1239 ieee80211_sdata_running(___sdata)) \ 1240 for (___link_id = 0; \ 1241 ___link_id < ARRAY_SIZE(___sdata->link); \ 1242 ___link_id++) \ 1243 if ((_link = wiphy_dereference((_local)->hw.wiphy, \ 1244 ___sdata->link[___link_id]))) 1245 1246 /* 1247 * for_each_sdata_link_rcu() must be used under RCU read lock. 1248 */ 1249 #define for_each_sdata_link_rcu(_local, _link) \ 1250 /* outer loop just to define the variables ... */ \ 1251 for (struct ieee80211_sub_if_data *___sdata = NULL; \ 1252 !___sdata; \ 1253 ___sdata = (void *)~0 /* always stop */) \ 1254 for (int ___link_id = ARRAY_SIZE(___sdata->link); \ 1255 ___link_id; ___link_id = 0 /* always stop */) \ 1256 list_for_each_entry(___sdata, &(_local)->interfaces, list) \ 1257 if (___link_id == ARRAY_SIZE(___sdata->link) && \ 1258 ieee80211_sdata_running(___sdata)) \ 1259 for (___link_id = 0; \ 1260 ___link_id < ARRAY_SIZE((___sdata)->link); \ 1261 ___link_id++) \ 1262 if ((_link = rcu_dereference((___sdata)->link[___link_id]))) 1263 1264 #define for_each_link_data(sdata, __link) \ 1265 /* outer loop just to define the variable ... */ \ 1266 for (struct ieee80211_sub_if_data *__sdata = (sdata); __sdata; \ 1267 __sdata = NULL /* always stop */) \ 1268 for (int __link_id = 0; \ 1269 __link_id < ARRAY_SIZE((__sdata)->link); __link_id++) \ 1270 if ((!(__sdata)->vif.valid_links || \ 1271 (__sdata)->vif.valid_links & BIT(__link_id)) && \ 1272 ((__link) = sdata_dereference((__sdata)->link[__link_id], \ 1273 (__sdata)))) 1274 1275 /* 1276 * for_each_link_data_rcu should be used under RCU read lock. 1277 */ 1278 #define for_each_link_data_rcu(sdata, __link) \ 1279 /* outer loop just to define the variable ... */ \ 1280 for (struct ieee80211_sub_if_data *__sdata = (sdata); __sdata; \ 1281 __sdata = NULL /* always stop */) \ 1282 for (int __link_id = 0; \ 1283 __link_id < ARRAY_SIZE((__sdata)->link); __link_id++) \ 1284 if ((!(__sdata)->vif.valid_links || \ 1285 (__sdata)->vif.valid_links & BIT(__link_id)) && \ 1286 ((__link) = rcu_dereference((__sdata)->link[__link_id]))) \ 1287 1288 static inline int 1289 ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems *elems, 1290 struct cfg80211_rnr_elems *rnr_elems, 1291 u8 i) 1292 { 1293 int len = 0; 1294 1295 if (!elems || !elems->cnt || i > elems->cnt) 1296 return 0; 1297 1298 if (i < elems->cnt) { 1299 len = elems->elem[i].len; 1300 if (rnr_elems) { 1301 len += rnr_elems->elem[i].len; 1302 for (i = elems->cnt; i < rnr_elems->cnt; i++) 1303 len += rnr_elems->elem[i].len; 1304 } 1305 return len; 1306 } 1307 1308 /* i == elems->cnt, calculate total length of all MBSSID elements */ 1309 for (i = 0; i < elems->cnt; i++) 1310 len += elems->elem[i].len; 1311 1312 if (rnr_elems) { 1313 for (i = 0; i < rnr_elems->cnt; i++) 1314 len += rnr_elems->elem[i].len; 1315 } 1316 1317 return len; 1318 } 1319 1320 enum { 1321 IEEE80211_RX_MSG = 1, 1322 IEEE80211_TX_STATUS_MSG = 2, 1323 }; 1324 1325 enum queue_stop_reason { 1326 IEEE80211_QUEUE_STOP_REASON_DRIVER, 1327 IEEE80211_QUEUE_STOP_REASON_PS, 1328 IEEE80211_QUEUE_STOP_REASON_CSA, 1329 IEEE80211_QUEUE_STOP_REASON_AGGREGATION, 1330 IEEE80211_QUEUE_STOP_REASON_SUSPEND, 1331 IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 1332 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL, 1333 IEEE80211_QUEUE_STOP_REASON_FLUSH, 1334 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN, 1335 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID, 1336 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE, 1337 1338 IEEE80211_QUEUE_STOP_REASONS, 1339 }; 1340 1341 #ifdef CONFIG_MAC80211_LEDS 1342 struct tpt_led_trigger { 1343 char name[32]; 1344 const struct ieee80211_tpt_blink *blink_table; 1345 unsigned int blink_table_len; 1346 struct timer_list timer; 1347 struct ieee80211_local *local; 1348 unsigned long prev_traffic; 1349 unsigned long tx_bytes, rx_bytes; 1350 unsigned int active, want; 1351 bool running; 1352 }; 1353 #endif 1354 1355 /** 1356 * enum mac80211_scan_flags - currently active scan mode 1357 * 1358 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as 1359 * well be on the operating channel 1360 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to 1361 * determine if we are on the operating channel or not 1362 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating 1363 * channel. This should not interrupt normal traffic. 1364 * @SCAN_COMPLETED: Set for our scan work function when the driver reported 1365 * that the scan completed. 1366 * @SCAN_ABORTED: Set for our scan work function when the driver reported 1367 * a scan complete for an aborted scan. 1368 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being 1369 * cancelled. 1370 * @SCAN_BEACON_WAIT: Set whenever we're passive scanning because of radar/no-IR 1371 * and could send a probe request after receiving a beacon. 1372 * @SCAN_BEACON_DONE: Beacon received, we can now send a probe request 1373 */ 1374 enum mac80211_scan_flags { 1375 SCAN_SW_SCANNING, 1376 SCAN_HW_SCANNING, 1377 SCAN_ONCHANNEL_SCANNING, 1378 SCAN_COMPLETED, 1379 SCAN_ABORTED, 1380 SCAN_HW_CANCELLED, 1381 SCAN_BEACON_WAIT, 1382 SCAN_BEACON_DONE, 1383 }; 1384 1385 /** 1386 * enum mac80211_scan_state - scan state machine states 1387 * 1388 * @SCAN_DECISION: Main entry point to the scan state machine, this state 1389 * determines if we should keep on scanning or switch back to the 1390 * operating channel 1391 * @SCAN_SET_CHANNEL: Set the next channel to be scanned 1392 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses 1393 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to 1394 * send out data 1395 * @SCAN_RESUME: Resume the scan and scan the next channel 1396 * @SCAN_ABORT: Abort the scan and go back to operating channel 1397 */ 1398 enum mac80211_scan_state { 1399 SCAN_DECISION, 1400 SCAN_SET_CHANNEL, 1401 SCAN_SEND_PROBE, 1402 SCAN_SUSPEND, 1403 SCAN_RESUME, 1404 SCAN_ABORT, 1405 }; 1406 1407 DECLARE_STATIC_KEY_FALSE(aql_disable); 1408 1409 struct ieee80211_local { 1410 /* embed the driver visible part. 1411 * don't cast (use the static inlines below), but we keep 1412 * it first anyway so they become a no-op */ 1413 struct ieee80211_hw hw; 1414 1415 struct fq fq; 1416 struct codel_vars *cvars; 1417 struct codel_params cparams; 1418 1419 /* protects active_txqs and txqi->schedule_order */ 1420 spinlock_t active_txq_lock[IEEE80211_NUM_ACS]; 1421 struct list_head active_txqs[IEEE80211_NUM_ACS]; 1422 u16 schedule_round[IEEE80211_NUM_ACS]; 1423 1424 /* serializes ieee80211_handle_wake_tx_queue */ 1425 spinlock_t handle_wake_tx_queue_lock; 1426 1427 u16 airtime_flags; 1428 u32 aql_txq_limit_low[IEEE80211_NUM_ACS]; 1429 u32 aql_txq_limit_high[IEEE80211_NUM_ACS]; 1430 u32 aql_threshold; 1431 atomic_t aql_total_pending_airtime; 1432 atomic_t aql_ac_pending_airtime[IEEE80211_NUM_ACS]; 1433 1434 const struct ieee80211_ops *ops; 1435 1436 /* 1437 * private workqueue to mac80211. mac80211 makes this accessible 1438 * via ieee80211_queue_work() 1439 */ 1440 struct workqueue_struct *workqueue; 1441 1442 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES]; 1443 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS]; 1444 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */ 1445 spinlock_t queue_stop_reason_lock; 1446 1447 int open_count; 1448 int monitors, virt_monitors, tx_mntrs; 1449 /* number of interfaces with corresponding FIF_ flags */ 1450 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll, 1451 fif_probe_req; 1452 bool probe_req_reg; 1453 bool rx_mcast_action_reg; 1454 unsigned int filter_flags; /* FIF_* */ 1455 1456 struct cfg80211_chan_def dflt_chandef; 1457 bool emulate_chanctx; 1458 1459 /* protects the aggregated multicast list and filter calls */ 1460 spinlock_t filter_lock; 1461 1462 /* used for uploading changed mc list */ 1463 struct wiphy_work reconfig_filter; 1464 1465 /* aggregated multicast list */ 1466 struct netdev_hw_addr_list mc_list; 1467 1468 bool tim_in_locked_section; /* see ieee80211_beacon_get() */ 1469 1470 /* 1471 * suspended is true if we finished all the suspend _and_ we have 1472 * not yet come up from resume. This is to be used by mac80211 1473 * to ensure driver sanity during suspend and mac80211's own 1474 * sanity. It can eventually be used for WoW as well. 1475 */ 1476 bool suspended; 1477 1478 /* suspending is true during the whole suspend process */ 1479 bool suspending; 1480 1481 /* 1482 * Resuming is true while suspended, but when we're reprogramming the 1483 * hardware -- at that time it's allowed to use ieee80211_queue_work() 1484 * again even though some other parts of the stack are still suspended 1485 * and we still drop received frames to avoid waking the stack. 1486 */ 1487 bool resuming; 1488 1489 /* 1490 * quiescing is true during the suspend process _only_ to 1491 * ease timer cancelling etc. 1492 */ 1493 bool quiescing; 1494 1495 /* device is started */ 1496 bool started; 1497 1498 /* device is during a HW reconfig */ 1499 bool in_reconfig; 1500 1501 /* reconfiguration failed ... suppress some warnings etc. */ 1502 bool reconfig_failure; 1503 1504 /* wowlan is enabled -- don't reconfig on resume */ 1505 bool wowlan; 1506 1507 struct wiphy_work radar_detected_work; 1508 1509 /* number of RX chains the hardware has */ 1510 u8 rx_chains; 1511 1512 /* bitmap of which sbands were copied */ 1513 u8 sband_allocated; 1514 1515 int tx_headroom; /* required headroom for hardware/radiotap */ 1516 1517 /* Tasklet and skb queue to process calls from IRQ mode. All frames 1518 * added to skb_queue will be processed, but frames in 1519 * skb_queue_unreliable may be dropped if the total length of these 1520 * queues increases over the limit. */ 1521 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128 1522 struct tasklet_struct tasklet; 1523 struct sk_buff_head skb_queue; 1524 struct sk_buff_head skb_queue_unreliable; 1525 1526 spinlock_t rx_path_lock; 1527 1528 /* Station data */ 1529 /* 1530 * The list, hash table and counter are protected 1531 * by the wiphy mutex, reads are done with RCU. 1532 */ 1533 spinlock_t tim_lock; 1534 unsigned long num_sta; 1535 struct list_head sta_list; 1536 struct rhltable sta_hash; 1537 struct rhltable link_sta_hash; 1538 struct timer_list sta_cleanup; 1539 int sta_generation; 1540 1541 struct sk_buff_head pending[IEEE80211_MAX_QUEUES]; 1542 struct tasklet_struct tx_pending_tasklet; 1543 struct tasklet_struct wake_txqs_tasklet; 1544 1545 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES]; 1546 1547 /* number of interfaces with allmulti RX */ 1548 atomic_t iff_allmultis; 1549 1550 struct rate_control_ref *rate_ctrl; 1551 1552 struct arc4_ctx wep_tx_ctx; 1553 struct arc4_ctx wep_rx_ctx; 1554 u32 wep_iv; 1555 1556 /* see iface.c */ 1557 struct list_head interfaces; 1558 struct list_head mon_list; /* only that are IFF_UP */ 1559 struct mutex iflist_mtx; 1560 1561 /* Scanning and BSS list */ 1562 unsigned long scanning; 1563 struct cfg80211_ssid scan_ssid; 1564 struct cfg80211_scan_request *int_scan_req; 1565 struct cfg80211_scan_request __rcu *scan_req; 1566 struct ieee80211_scan_request *hw_scan_req; 1567 struct cfg80211_chan_def scan_chandef; 1568 enum nl80211_band hw_scan_band; 1569 int scan_channel_idx; 1570 int scan_ies_len; 1571 int hw_scan_ies_bufsize; 1572 struct cfg80211_scan_info scan_info; 1573 1574 struct wiphy_work sched_scan_stopped_work; 1575 struct ieee80211_sub_if_data __rcu *sched_scan_sdata; 1576 struct cfg80211_sched_scan_request __rcu *sched_scan_req; 1577 u8 scan_addr[ETH_ALEN]; 1578 1579 unsigned long leave_oper_channel_time; 1580 enum mac80211_scan_state next_scan_state; 1581 struct wiphy_delayed_work scan_work; 1582 struct ieee80211_sub_if_data __rcu *scan_sdata; 1583 1584 /* Temporary remain-on-channel for off-channel operations */ 1585 struct ieee80211_channel *tmp_channel; 1586 1587 /* channel contexts */ 1588 struct list_head chanctx_list; 1589 1590 #ifdef CONFIG_MAC80211_LEDS 1591 struct led_trigger tx_led, rx_led, assoc_led, radio_led; 1592 struct led_trigger tpt_led; 1593 atomic_t tx_led_active, rx_led_active, assoc_led_active; 1594 atomic_t radio_led_active, tpt_led_active; 1595 struct tpt_led_trigger *tpt_led_trigger; 1596 #endif 1597 1598 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS 1599 /* SNMP counters */ 1600 /* dot11CountersTable */ 1601 u32 dot11TransmittedFragmentCount; 1602 u32 dot11MulticastTransmittedFrameCount; 1603 u32 dot11FailedCount; 1604 u32 dot11RetryCount; 1605 u32 dot11MultipleRetryCount; 1606 u32 dot11FrameDuplicateCount; 1607 u32 dot11ReceivedFragmentCount; 1608 u32 dot11MulticastReceivedFrameCount; 1609 u32 dot11TransmittedFrameCount; 1610 1611 /* TX/RX handler statistics */ 1612 unsigned int tx_handlers_queued; 1613 unsigned int tx_handlers_drop_wep; 1614 unsigned int tx_handlers_drop_not_assoc; 1615 unsigned int tx_handlers_drop_unauth_port; 1616 unsigned int rx_handlers_drop; 1617 unsigned int rx_handlers_queued; 1618 unsigned int rx_handlers_drop_nullfunc; 1619 unsigned int rx_handlers_drop_defrag; 1620 unsigned int tx_expand_skb_head; 1621 unsigned int tx_expand_skb_head_cloned; 1622 unsigned int rx_expand_skb_head_defrag; 1623 unsigned int rx_handlers_fragments; 1624 unsigned int tx_status_drop; 1625 #define I802_DEBUG_INC(c) (c)++ 1626 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */ 1627 #define I802_DEBUG_INC(c) do { } while (0) 1628 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */ 1629 1630 1631 int total_ps_buffered; /* total number of all buffered unicast and 1632 * multicast packets for power saving stations 1633 */ 1634 1635 bool pspolling; 1636 /* 1637 * PS can only be enabled when we have exactly one managed 1638 * interface (and monitors) in PS, this then points there. 1639 */ 1640 struct ieee80211_sub_if_data *ps_sdata; 1641 struct wiphy_work dynamic_ps_enable_work; 1642 struct wiphy_work dynamic_ps_disable_work; 1643 struct timer_list dynamic_ps_timer; 1644 struct notifier_block ifa_notifier; 1645 struct notifier_block ifa6_notifier; 1646 1647 /* 1648 * The dynamic ps timeout configured from user space via WEXT - 1649 * this will override whatever chosen by mac80211 internally. 1650 */ 1651 int dynamic_ps_forced_timeout; 1652 1653 int user_power_level; /* in dBm, for all interfaces */ 1654 1655 struct work_struct restart_work; 1656 1657 #ifdef CONFIG_MAC80211_DEBUGFS 1658 struct local_debugfsdentries { 1659 struct dentry *rcdir; 1660 struct dentry *keys; 1661 } debugfs; 1662 bool force_tx_status; 1663 #endif 1664 1665 /* 1666 * Remain-on-channel support 1667 */ 1668 struct wiphy_delayed_work roc_work; 1669 struct list_head roc_list; 1670 struct wiphy_work hw_roc_start, hw_roc_done; 1671 unsigned long hw_roc_start_time; 1672 u64 roc_cookie_counter; 1673 1674 struct idr ack_status_frames; 1675 spinlock_t ack_status_lock; 1676 1677 /* virtual monitor interface */ 1678 struct ieee80211_sub_if_data __rcu *monitor_sdata; 1679 struct ieee80211_chan_req monitor_chanreq; 1680 1681 /* extended capabilities provided by mac80211 */ 1682 u8 ext_capa[8]; 1683 1684 bool wbrf_supported; 1685 }; 1686 1687 static inline struct ieee80211_sub_if_data * 1688 IEEE80211_DEV_TO_SUB_IF(const struct net_device *dev) 1689 { 1690 return netdev_priv(dev); 1691 } 1692 1693 static inline struct ieee80211_sub_if_data * 1694 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev) 1695 { 1696 return container_of(wdev, struct ieee80211_sub_if_data, wdev); 1697 } 1698 1699 static inline struct ieee80211_supported_band * 1700 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata) 1701 { 1702 struct ieee80211_local *local = sdata->local; 1703 struct ieee80211_chanctx_conf *chanctx_conf; 1704 enum nl80211_band band; 1705 1706 WARN_ON(ieee80211_vif_is_mld(&sdata->vif)); 1707 1708 rcu_read_lock(); 1709 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 1710 1711 if (!chanctx_conf) { 1712 rcu_read_unlock(); 1713 return NULL; 1714 } 1715 1716 band = chanctx_conf->def.chan->band; 1717 rcu_read_unlock(); 1718 1719 return local->hw.wiphy->bands[band]; 1720 } 1721 1722 static inline struct ieee80211_supported_band * 1723 ieee80211_get_link_sband(struct ieee80211_link_data *link) 1724 { 1725 struct ieee80211_local *local = link->sdata->local; 1726 struct ieee80211_chanctx_conf *chanctx_conf; 1727 enum nl80211_band band; 1728 1729 rcu_read_lock(); 1730 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 1731 if (!chanctx_conf) { 1732 rcu_read_unlock(); 1733 return NULL; 1734 } 1735 1736 band = chanctx_conf->def.chan->band; 1737 rcu_read_unlock(); 1738 1739 return local->hw.wiphy->bands[band]; 1740 } 1741 1742 /* this struct holds the value parsing from channel switch IE */ 1743 struct ieee80211_csa_ie { 1744 struct ieee80211_chan_req chanreq; 1745 u8 mode; 1746 u8 count; 1747 u8 ttl; 1748 u16 pre_value; 1749 u16 reason_code; 1750 u32 max_switch_time; 1751 }; 1752 1753 enum ieee80211_elems_parse_error { 1754 IEEE80211_PARSE_ERR_INVALID_END = BIT(0), 1755 IEEE80211_PARSE_ERR_DUP_ELEM = BIT(1), 1756 IEEE80211_PARSE_ERR_BAD_ELEM_SIZE = BIT(2), 1757 IEEE80211_PARSE_ERR_UNEXPECTED_ELEM = BIT(3), 1758 IEEE80211_PARSE_ERR_DUP_NEST_ML_BASIC = BIT(4), 1759 }; 1760 1761 /* Parsed Information Elements */ 1762 struct ieee802_11_elems { 1763 const u8 *ie_start; 1764 size_t total_len; 1765 u32 crc; 1766 1767 /* pointers to IEs */ 1768 const struct ieee80211_tdls_lnkie *lnk_id; 1769 const struct ieee80211_ch_switch_timing *ch_sw_timing; 1770 const u8 *ext_capab; 1771 const u8 *ssid; 1772 const u8 *supp_rates; 1773 const u8 *ds_params; 1774 const struct ieee80211_tim_ie *tim; 1775 const u8 *rsn; 1776 const u8 *rsnx; 1777 const u8 *erp_info; 1778 const u8 *ext_supp_rates; 1779 const u8 *wmm_info; 1780 const u8 *wmm_param; 1781 const struct ieee80211_ht_cap *ht_cap_elem; 1782 const struct ieee80211_ht_operation *ht_operation; 1783 const struct ieee80211_vht_cap *vht_cap_elem; 1784 const struct ieee80211_vht_operation *vht_operation; 1785 const struct ieee80211_meshconf_ie *mesh_config; 1786 const u8 *he_cap; 1787 const struct ieee80211_he_operation *he_operation; 1788 const struct ieee80211_he_spr *he_spr; 1789 const struct ieee80211_mu_edca_param_set *mu_edca_param_set; 1790 const struct ieee80211_he_6ghz_capa *he_6ghz_capa; 1791 const u8 *uora_element; 1792 const u8 *mesh_id; 1793 const u8 *peering; 1794 const __le16 *awake_window; 1795 const u8 *preq; 1796 const u8 *prep; 1797 const u8 *perr; 1798 const struct ieee80211_rann_ie *rann; 1799 const struct ieee80211_channel_sw_ie *ch_switch_ie; 1800 const struct ieee80211_ext_chansw_ie *ext_chansw_ie; 1801 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie; 1802 const u8 *max_channel_switch_time; 1803 const u8 *country_elem; 1804 const u8 *pwr_constr_elem; 1805 const u8 *cisco_dtpc_elem; 1806 const struct ieee80211_timeout_interval_ie *timeout_int; 1807 const u8 *opmode_notif; 1808 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs; 1809 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie; 1810 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie; 1811 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie; 1812 const struct ieee80211_bssid_index *bssid_index; 1813 u8 max_bssid_indicator; 1814 u8 dtim_count; 1815 u8 dtim_period; 1816 const struct ieee80211_addba_ext_ie *addba_ext_ie; 1817 const struct ieee80211_s1g_cap *s1g_capab; 1818 const struct ieee80211_s1g_oper_ie *s1g_oper; 1819 const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat; 1820 const struct ieee80211_aid_response_ie *aid_resp; 1821 const struct ieee80211_eht_cap_elem *eht_cap; 1822 const struct ieee80211_eht_operation *eht_operation; 1823 const struct ieee80211_multi_link_elem *ml_basic; 1824 const struct ieee80211_multi_link_elem *ml_reconf; 1825 const struct ieee80211_multi_link_elem *ml_epcs; 1826 const struct ieee80211_bandwidth_indication *bandwidth_indication; 1827 const struct ieee80211_ttlm_elem *ttlm[IEEE80211_TTLM_MAX_CNT]; 1828 const struct ieee80211_uhr_cap *uhr_cap; 1829 const struct ieee80211_uhr_operation *uhr_operation; 1830 1831 /* not the order in the psd values is per element, not per chandef */ 1832 struct ieee80211_parsed_tpe tpe; 1833 struct ieee80211_parsed_tpe csa_tpe; 1834 1835 /* length of them, respectively */ 1836 u8 ext_capab_len; 1837 u8 ssid_len; 1838 u8 supp_rates_len; 1839 u8 tim_len; 1840 u8 rsn_len; 1841 u8 rsnx_len; 1842 u8 ext_supp_rates_len; 1843 u8 wmm_info_len; 1844 u8 wmm_param_len; 1845 u8 he_cap_len; 1846 u8 mesh_id_len; 1847 u8 peering_len; 1848 u8 preq_len; 1849 u8 prep_len; 1850 u8 perr_len; 1851 u8 country_elem_len; 1852 u8 bssid_index_len; 1853 u8 eht_cap_len; 1854 u8 uhr_cap_len; 1855 u8 uhr_operation_len; 1856 1857 /* mult-link element can be de-fragmented and thus u8 is not sufficient */ 1858 size_t ml_basic_len; 1859 size_t ml_reconf_len; 1860 size_t ml_epcs_len; 1861 1862 u8 ttlm_num; 1863 1864 /* 1865 * store the per station profile pointer and length in case that the 1866 * parsing also handled Multi-Link element parsing for a specific link 1867 * ID. 1868 */ 1869 struct ieee80211_mle_per_sta_profile *prof; 1870 size_t sta_prof_len; 1871 1872 /* whether/which parse error occurred while retrieving these elements */ 1873 u8 parse_error; 1874 }; 1875 1876 static inline struct ieee80211_local *hw_to_local( 1877 struct ieee80211_hw *hw) 1878 { 1879 return container_of(hw, struct ieee80211_local, hw); 1880 } 1881 1882 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq) 1883 { 1884 return container_of(txq, struct txq_info, txq); 1885 } 1886 1887 static inline bool txq_has_queue(struct ieee80211_txq *txq) 1888 { 1889 struct txq_info *txqi = to_txq_info(txq); 1890 1891 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets); 1892 } 1893 1894 static inline bool 1895 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status) 1896 { 1897 return status->flag & RX_FLAG_MACTIME; 1898 } 1899 1900 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata); 1901 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata); 1902 1903 void ieee80211_vif_block_queues_csa(struct ieee80211_sub_if_data *sdata); 1904 void ieee80211_vif_unblock_queues_csa(struct ieee80211_sub_if_data *sdata); 1905 1906 /* This function returns the number of multicast stations connected to this 1907 * interface. It returns -1 if that number is not tracked, that is for netdevs 1908 * not in AP or AP_VLAN mode or when using 4addr. 1909 */ 1910 static inline int 1911 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata) 1912 { 1913 if (sdata->vif.type == NL80211_IFTYPE_AP) 1914 return atomic_read(&sdata->u.ap.num_mcast_sta); 1915 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta) 1916 return atomic_read(&sdata->u.vlan.num_mcast_sta); 1917 return -1; 1918 } 1919 1920 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, 1921 struct ieee80211_rx_status *status, 1922 unsigned int mpdu_len, 1923 unsigned int mpdu_offset); 1924 int ieee80211_hw_config(struct ieee80211_local *local, int radio_idx, 1925 u32 changed); 1926 int ieee80211_hw_conf_chan(struct ieee80211_local *local); 1927 void ieee80211_hw_conf_init(struct ieee80211_local *local); 1928 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); 1929 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, 1930 u64 changed); 1931 void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata, 1932 u64 changed); 1933 void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata, 1934 struct ieee80211_link_data *link, 1935 u64 changed); 1936 void ieee80211_configure_filter(struct ieee80211_local *local); 1937 u64 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata); 1938 1939 void ieee80211_handle_queued_frames(struct ieee80211_local *local); 1940 1941 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local); 1942 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 1943 u64 *cookie, gfp_t gfp); 1944 1945 void ieee80211_check_fast_rx(struct sta_info *sta); 1946 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata); 1947 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata); 1948 void ieee80211_clear_fast_rx(struct sta_info *sta); 1949 1950 bool ieee80211_is_our_addr(struct ieee80211_sub_if_data *sdata, 1951 const u8 *addr, int *out_link_id); 1952 1953 /* STA code */ 1954 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata); 1955 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, 1956 struct cfg80211_auth_request *req); 1957 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, 1958 struct cfg80211_assoc_request *req); 1959 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, 1960 struct cfg80211_deauth_request *req); 1961 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, 1962 struct cfg80211_disassoc_request *req); 1963 void ieee80211_send_pspoll(struct ieee80211_local *local, 1964 struct ieee80211_sub_if_data *sdata); 1965 void ieee80211_recalc_ps(struct ieee80211_local *local); 1966 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata); 1967 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata); 1968 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 1969 struct sk_buff *skb); 1970 void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata, 1971 struct sk_buff *skb); 1972 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata); 1973 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata); 1974 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata); 1975 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata, 1976 __le16 fc, bool acked); 1977 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata); 1978 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata); 1979 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata); 1980 void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, 1981 u8 reason, bool tx); 1982 void ieee80211_mgd_setup_link(struct ieee80211_link_data *link); 1983 void ieee80211_mgd_stop_link(struct ieee80211_link_data *link); 1984 void ieee80211_mgd_set_link_qos_params(struct ieee80211_link_data *link); 1985 1986 /* IBSS code */ 1987 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local); 1988 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata); 1989 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata, 1990 const u8 *bssid, const u8 *addr, u32 supp_rates); 1991 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, 1992 struct cfg80211_ibss_params *params); 1993 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata); 1994 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata); 1995 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 1996 struct sk_buff *skb); 1997 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata, 1998 struct cfg80211_csa_settings *csa_settings, 1999 u64 *changed); 2000 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata, 2001 u64 *changed); 2002 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata); 2003 2004 /* OCB code */ 2005 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata); 2006 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata, 2007 const u8 *bssid, const u8 *addr, u32 supp_rates); 2008 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata); 2009 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata, 2010 struct ocb_setup *setup); 2011 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata); 2012 2013 /* mesh code */ 2014 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata); 2015 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 2016 struct sk_buff *skb); 2017 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata, 2018 struct cfg80211_csa_settings *csa_settings, 2019 u64 *changed); 2020 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata, 2021 u64 *changed); 2022 2023 /* scan/BSS handling */ 2024 void ieee80211_scan_work(struct wiphy *wiphy, struct wiphy_work *work); 2025 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata, 2026 const u8 *ssid, u8 ssid_len, 2027 struct ieee80211_channel **channels, 2028 unsigned int n_channels); 2029 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, 2030 struct cfg80211_scan_request *req); 2031 void ieee80211_scan_cancel(struct ieee80211_local *local); 2032 void ieee80211_run_deferred_scan(struct ieee80211_local *local); 2033 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb); 2034 2035 void ieee80211_inform_bss(struct wiphy *wiphy, struct cfg80211_bss *bss, 2036 const struct cfg80211_bss_ies *ies, void *data); 2037 2038 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local); 2039 struct ieee80211_bss * 2040 ieee80211_bss_info_update(struct ieee80211_local *local, 2041 struct ieee80211_rx_status *rx_status, 2042 struct ieee80211_mgmt *mgmt, 2043 size_t len, 2044 struct ieee80211_channel *channel); 2045 void ieee80211_rx_bss_put(struct ieee80211_local *local, 2046 struct ieee80211_bss *bss); 2047 2048 /* scheduled scan handling */ 2049 int 2050 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, 2051 struct cfg80211_sched_scan_request *req); 2052 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, 2053 struct cfg80211_sched_scan_request *req); 2054 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local); 2055 void ieee80211_sched_scan_end(struct ieee80211_local *local); 2056 void ieee80211_sched_scan_stopped_work(struct wiphy *wiphy, 2057 struct wiphy_work *work); 2058 2059 /* off-channel/mgmt-tx */ 2060 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local); 2061 void ieee80211_offchannel_return(struct ieee80211_local *local); 2062 void ieee80211_roc_setup(struct ieee80211_local *local); 2063 void ieee80211_start_next_roc(struct ieee80211_local *local); 2064 void ieee80211_reconfig_roc(struct ieee80211_local *local); 2065 void ieee80211_roc_purge(struct ieee80211_local *local, 2066 struct ieee80211_sub_if_data *sdata); 2067 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev, 2068 struct ieee80211_channel *chan, 2069 unsigned int duration, u64 *cookie); 2070 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, 2071 struct wireless_dev *wdev, u64 cookie); 2072 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 2073 struct cfg80211_mgmt_tx_params *params, u64 *cookie); 2074 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, 2075 struct wireless_dev *wdev, u64 cookie); 2076 2077 /* channel switch handling */ 2078 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work); 2079 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 2080 struct cfg80211_csa_settings *params); 2081 2082 /* color change handling */ 2083 void ieee80211_color_change_finalize_work(struct wiphy *wiphy, 2084 struct wiphy_work *work); 2085 void ieee80211_color_collision_detection_work(struct wiphy *wiphy, 2086 struct wiphy_work *work); 2087 2088 /* interface handling */ 2089 #define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \ 2090 NETIF_F_HW_CSUM | NETIF_F_SG | \ 2091 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE | \ 2092 NETIF_F_HW_TC) 2093 #define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM) 2094 #define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \ 2095 MAC80211_SUPPORTED_FEATURES_RX) 2096 2097 int ieee80211_iface_init(void); 2098 void ieee80211_iface_exit(void); 2099 int ieee80211_if_add(struct ieee80211_local *local, const char *name, 2100 unsigned char name_assign_type, 2101 struct wireless_dev **new_wdev, enum nl80211_iftype type, 2102 struct vif_params *params); 2103 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, 2104 enum nl80211_iftype type); 2105 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata); 2106 void ieee80211_remove_interfaces(struct ieee80211_local *local); 2107 u32 ieee80211_idle_off(struct ieee80211_local *local); 2108 void ieee80211_recalc_idle(struct ieee80211_local *local); 2109 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata, 2110 const int offset); 2111 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up); 2112 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata); 2113 int ieee80211_add_virtual_monitor(struct ieee80211_local *local, 2114 struct ieee80211_sub_if_data *creator_sdata); 2115 void ieee80211_del_virtual_monitor(struct ieee80211_local *local); 2116 2117 bool __ieee80211_recalc_txpower(struct ieee80211_link_data *link); 2118 void ieee80211_recalc_txpower(struct ieee80211_link_data *link, 2119 bool update_bss); 2120 void ieee80211_recalc_offload(struct ieee80211_local *local); 2121 2122 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata) 2123 { 2124 return test_bit(SDATA_STATE_RUNNING, &sdata->state); 2125 } 2126 2127 /* link handling */ 2128 void ieee80211_link_setup(struct ieee80211_link_data *link); 2129 void ieee80211_link_init(struct ieee80211_sub_if_data *sdata, 2130 int link_id, 2131 struct ieee80211_link_data *link, 2132 struct ieee80211_bss_conf *link_conf); 2133 void ieee80211_link_stop(struct ieee80211_link_data *link); 2134 int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata, 2135 u16 new_links, u16 dormant_links); 2136 static inline void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata) 2137 { 2138 ieee80211_vif_set_links(sdata, 0, 0); 2139 } 2140 2141 void ieee80211_apvlan_link_setup(struct ieee80211_sub_if_data *sdata); 2142 void ieee80211_apvlan_link_clear(struct ieee80211_sub_if_data *sdata); 2143 2144 /* tx handling */ 2145 void ieee80211_clear_tx_pending(struct ieee80211_local *local); 2146 void ieee80211_tx_pending(struct tasklet_struct *t); 2147 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb, 2148 struct net_device *dev); 2149 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, 2150 struct net_device *dev); 2151 netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb, 2152 struct net_device *dev); 2153 void __ieee80211_subif_start_xmit(struct sk_buff *skb, 2154 struct net_device *dev, 2155 u32 info_flags, 2156 u32 ctrl_flags, 2157 u64 *cookie); 2158 struct sk_buff * 2159 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata, 2160 struct sk_buff *skb, u32 info_flags); 2161 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb, 2162 int retry_count, struct ieee80211_tx_status *status); 2163 2164 void ieee80211_check_fast_xmit(struct sta_info *sta); 2165 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local); 2166 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata); 2167 void ieee80211_clear_fast_xmit(struct sta_info *sta); 2168 int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev, 2169 const u8 *buf, size_t len, 2170 const u8 *dest, __be16 proto, bool unencrypted, 2171 int link_id, u64 *cookie); 2172 int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev, 2173 const u8 *buf, size_t len); 2174 void __ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata, 2175 struct sta_info *sta, 2176 struct ieee80211_fast_tx *fast_tx, 2177 struct sk_buff *skb, bool ampdu, 2178 const u8 *da, const u8 *sa); 2179 void ieee80211_aggr_check(struct ieee80211_sub_if_data *sdata, 2180 struct sta_info *sta, struct sk_buff *skb); 2181 2182 /* HT */ 2183 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, 2184 struct ieee80211_sta_ht_cap *ht_cap); 2185 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, 2186 struct ieee80211_supported_band *sband, 2187 const struct ieee80211_ht_cap *ht_cap_ie, 2188 struct link_sta_info *link_sta); 2189 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, 2190 const u8 *da, u16 tid, 2191 u16 initiator, u16 reason_code); 2192 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata, 2193 enum ieee80211_smps_mode smps, const u8 *da, 2194 const u8 *bssid, int link_id); 2195 void ieee80211_add_addbaext(struct sk_buff *skb, 2196 const u8 req_addba_ext_data, 2197 u16 buf_size); 2198 u8 ieee80211_retrieve_addba_ext_data(struct sta_info *sta, 2199 const void *elem_data, ssize_t elem_len, 2200 u16 *buf_size); 2201 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, 2202 u16 initiator, u16 reason, bool stop); 2203 void __ieee80211_start_rx_ba_session(struct sta_info *sta, 2204 u8 dialog_token, u16 timeout, 2205 u16 start_seq_num, u16 ba_policy, u16 tid, 2206 u16 buf_size, bool tx, bool auto_seq, 2207 const u8 addba_ext_data); 2208 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, 2209 enum ieee80211_agg_stop_reason reason); 2210 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, 2211 struct sta_info *sta, 2212 struct ieee80211_mgmt *mgmt, size_t len); 2213 void ieee80211_process_addba_resp(struct ieee80211_local *local, 2214 struct sta_info *sta, 2215 struct ieee80211_mgmt *mgmt, 2216 size_t len); 2217 void ieee80211_process_addba_request(struct ieee80211_local *local, 2218 struct sta_info *sta, 2219 struct ieee80211_mgmt *mgmt, 2220 size_t len); 2221 2222 static inline struct ieee80211_mgmt * 2223 ieee80211_mgmt_ba(struct sk_buff *skb, const u8 *da, 2224 struct ieee80211_sub_if_data *sdata) 2225 { 2226 struct ieee80211_mgmt *mgmt = skb_put_zero(skb, 24); 2227 2228 ether_addr_copy(mgmt->da, da); 2229 ether_addr_copy(mgmt->sa, sdata->vif.addr); 2230 2231 if (sdata->vif.type == NL80211_IFTYPE_AP || 2232 sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 2233 sdata->vif.type == NL80211_IFTYPE_MESH_POINT) 2234 ether_addr_copy(mgmt->bssid, sdata->vif.addr); 2235 else if (sdata->vif.type == NL80211_IFTYPE_STATION) 2236 ether_addr_copy(mgmt->bssid, sdata->vif.cfg.ap_addr); 2237 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) 2238 ether_addr_copy(mgmt->bssid, sdata->u.ibss.bssid); 2239 2240 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 2241 IEEE80211_STYPE_ACTION); 2242 return mgmt; 2243 } 2244 2245 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, 2246 enum ieee80211_agg_stop_reason reason); 2247 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid, 2248 struct tid_ampdu_tx *tid_tx); 2249 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid, 2250 struct tid_ampdu_tx *tid_tx); 2251 void ieee80211_ba_session_work(struct wiphy *wiphy, struct wiphy_work *work); 2252 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid); 2253 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid); 2254 2255 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs); 2256 enum nl80211_smps_mode 2257 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps); 2258 2259 void ieee80211_ht_handle_chanwidth_notif(struct ieee80211_local *local, 2260 struct ieee80211_sub_if_data *sdata, 2261 struct sta_info *sta, 2262 struct link_sta_info *link_sta, 2263 u8 chanwidth, enum nl80211_band band); 2264 2265 /* VHT */ 2266 void 2267 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, 2268 struct ieee80211_supported_band *sband, 2269 const struct ieee80211_vht_cap *vht_cap_ie, 2270 const struct ieee80211_vht_cap *vht_cap_ie2, 2271 struct link_sta_info *link_sta); 2272 enum ieee80211_sta_rx_bandwidth 2273 _ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta, 2274 struct cfg80211_chan_def *chandef); 2275 static inline enum ieee80211_sta_rx_bandwidth 2276 ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta) 2277 { 2278 return _ieee80211_sta_cap_rx_bw(link_sta, NULL); 2279 } 2280 enum ieee80211_sta_rx_bandwidth 2281 _ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta, 2282 struct cfg80211_chan_def *chandef); 2283 static inline enum ieee80211_sta_rx_bandwidth 2284 ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta) 2285 { 2286 return _ieee80211_sta_cur_vht_bw(link_sta, NULL); 2287 } 2288 void ieee80211_sta_init_nss(struct link_sta_info *link_sta); 2289 enum nl80211_chan_width 2290 ieee80211_sta_cap_chan_bw(struct link_sta_info *link_sta); 2291 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata, 2292 struct ieee80211_link_data *link, 2293 struct ieee80211_mgmt *mgmt); 2294 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, 2295 struct link_sta_info *sta, 2296 u8 opmode, enum nl80211_band band); 2297 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, 2298 struct link_sta_info *sta, 2299 u8 opmode, enum nl80211_band band); 2300 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata, 2301 struct ieee80211_sta_vht_cap *vht_cap); 2302 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap, 2303 u16 vht_mask[NL80211_VHT_NSS_MAX]); 2304 enum nl80211_chan_width 2305 ieee80211_sta_rx_bw_to_chan_width(struct link_sta_info *sta); 2306 2307 /* HE */ 2308 void 2309 ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata, 2310 struct ieee80211_supported_band *sband, 2311 const u8 *he_cap_ie, u8 he_cap_len, 2312 const struct ieee80211_he_6ghz_capa *he_6ghz_capa, 2313 struct link_sta_info *link_sta); 2314 void 2315 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif, 2316 const struct ieee80211_he_spr *he_spr_ie_elem); 2317 2318 void 2319 ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif, 2320 const struct ieee80211_he_operation *he_op_ie_elem); 2321 2322 /* S1G */ 2323 void ieee80211_s1g_sta_rate_init(struct sta_info *sta); 2324 bool ieee80211_s1g_is_twt_setup(struct sk_buff *skb); 2325 void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata, 2326 struct sk_buff *skb); 2327 void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata, 2328 struct sk_buff *skb); 2329 void ieee80211_s1g_cap_to_sta_s1g_cap(struct ieee80211_sub_if_data *sdata, 2330 const struct ieee80211_s1g_cap *s1g_cap_ie, 2331 struct link_sta_info *link_sta); 2332 2333 /* Spectrum management */ 2334 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, 2335 struct ieee80211_mgmt *mgmt, 2336 size_t len); 2337 /** 2338 * ieee80211_parse_ch_switch_ie - parses channel switch IEs 2339 * @sdata: the sdata of the interface which has received the frame 2340 * @elems: parsed 802.11 elements received with the frame 2341 * @current_band: indicates the current band 2342 * @vht_cap_info: VHT capabilities of the transmitter 2343 * @conn: contains information about own capabilities and restrictions 2344 * to decide which channel switch announcements can be accepted 2345 * @bssid: the currently connected bssid (for reporting) 2346 * @unprot_action: whether the frame was an unprotected frame or not, 2347 * used for reporting 2348 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl. 2349 * All of them will be filled with if success only. 2350 * Return: 0 on success, <0 on error and >0 if there is nothing to parse. 2351 */ 2352 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata, 2353 struct ieee802_11_elems *elems, 2354 enum nl80211_band current_band, 2355 u32 vht_cap_info, 2356 struct ieee80211_conn_settings *conn, 2357 u8 *bssid, bool unprot_action, 2358 struct ieee80211_csa_ie *csa_ie); 2359 2360 /* Suspend/resume and hw reconfiguration */ 2361 int ieee80211_reconfig(struct ieee80211_local *local); 2362 void ieee80211_stop_device(struct ieee80211_local *local, bool suspend); 2363 2364 int __ieee80211_suspend(struct ieee80211_hw *hw, 2365 struct cfg80211_wowlan *wowlan); 2366 2367 static inline int __ieee80211_resume(struct ieee80211_hw *hw) 2368 { 2369 struct ieee80211_local *local = hw_to_local(hw); 2370 2371 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) && 2372 !test_bit(SCAN_COMPLETED, &local->scanning), 2373 "%s: resume with hardware scan still in progress\n", 2374 wiphy_name(hw->wiphy)); 2375 2376 return ieee80211_reconfig(hw_to_local(hw)); 2377 } 2378 2379 /* utility functions/constants */ 2380 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */ 2381 const char *ieee80211_conn_mode_str(enum ieee80211_conn_mode mode); 2382 enum ieee80211_conn_bw_limit 2383 ieee80211_min_bw_limit_from_chandef(struct cfg80211_chan_def *chandef); 2384 int ieee80211_frame_duration(enum nl80211_band band, size_t len, 2385 int rate, int erp, int short_preamble); 2386 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, 2387 struct ieee80211_tx_queue_params *qparam, 2388 int ac); 2389 void ieee80211_clear_tpe(struct ieee80211_parsed_tpe *tpe); 2390 void ieee80211_set_wmm_default(struct ieee80211_link_data *link, 2391 bool bss_notify, bool enable_qos); 2392 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, 2393 struct sta_info *sta, struct sk_buff *skb); 2394 2395 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, 2396 struct sk_buff *skb, int tid, int link_id, 2397 enum nl80211_band band); 2398 2399 static inline bool ieee80211_require_encrypted_assoc(__le16 fc, 2400 struct sta_info *sta) 2401 { 2402 return (sta && sta->sta.epp_peer && 2403 (ieee80211_is_assoc_req(fc) || ieee80211_is_reassoc_req(fc) || 2404 ieee80211_is_assoc_resp(fc) || ieee80211_is_reassoc_resp(fc))); 2405 } 2406 2407 /* sta_out needs to be checked for ERR_PTR() before using */ 2408 int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata, 2409 struct sk_buff *skb, 2410 struct sta_info **sta_out); 2411 2412 static inline void 2413 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, 2414 struct sk_buff *skb, int tid, 2415 enum nl80211_band band) 2416 { 2417 rcu_read_lock(); 2418 __ieee80211_tx_skb_tid_band(sdata, skb, tid, -1, band); 2419 rcu_read_unlock(); 2420 } 2421 2422 void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata, 2423 struct sk_buff *skb, int tid, int link_id); 2424 2425 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, 2426 struct sk_buff *skb) 2427 { 2428 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */ 2429 ieee80211_tx_skb_tid(sdata, skb, 7, -1); 2430 } 2431 2432 /** 2433 * struct ieee80211_elems_parse_params - element parsing parameters 2434 * @mode: connection mode for parsing 2435 * @start: pointer to the elements 2436 * @len: length of the elements 2437 * @type: type of the frame the elements came from 2438 * (action, probe response, beacon, etc.) 2439 * @filter: bitmap of element IDs to filter out while calculating 2440 * the element CRC 2441 * @crc: CRC starting value 2442 * @bss: the BSS to parse this as, for multi-BSSID cases this can 2443 * represent a non-transmitting BSS in which case the data 2444 * for that non-transmitting BSS is returned 2445 * @link_id: the link ID to parse elements for, if a STA profile 2446 * is present in the multi-link element, or -1 to ignore; 2447 * note that the code currently assumes parsing an association 2448 * (or re-association) response frame if this is given 2449 * @from_ap: frame is received from an AP (currently used only 2450 * for EHT capabilities parsing) 2451 */ 2452 struct ieee80211_elems_parse_params { 2453 enum ieee80211_conn_mode mode; 2454 const u8 *start; 2455 size_t len; 2456 u8 type; 2457 u64 filter; 2458 u32 crc; 2459 struct cfg80211_bss *bss; 2460 int link_id; 2461 bool from_ap; 2462 }; 2463 2464 struct ieee802_11_elems * 2465 ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params); 2466 2467 static inline struct ieee802_11_elems * 2468 ieee802_11_parse_elems(const u8 *start, size_t len, u8 type, 2469 struct cfg80211_bss *bss) 2470 { 2471 struct ieee80211_elems_parse_params params = { 2472 .mode = IEEE80211_CONN_MODE_HIGHEST, 2473 .start = start, 2474 .len = len, 2475 .type = type, 2476 .bss = bss, 2477 .link_id = -1, 2478 }; 2479 2480 return ieee802_11_parse_elems_full(¶ms); 2481 } 2482 2483 extern const int ieee802_1d_to_ac[8]; 2484 2485 static inline int ieee80211_ac_from_tid(int tid) 2486 { 2487 return ieee802_1d_to_ac[tid & 7]; 2488 } 2489 2490 void ieee80211_dynamic_ps_enable_work(struct wiphy *wiphy, 2491 struct wiphy_work *work); 2492 void ieee80211_dynamic_ps_disable_work(struct wiphy *wiphy, 2493 struct wiphy_work *work); 2494 void ieee80211_dynamic_ps_timer(struct timer_list *t); 2495 void ieee80211_send_nullfunc(struct ieee80211_local *local, 2496 struct ieee80211_sub_if_data *sdata, 2497 bool powersave); 2498 void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local, 2499 struct ieee80211_sub_if_data *sdata); 2500 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata, 2501 struct ieee80211_hdr *hdr, bool ack, u16 tx_time); 2502 unsigned int 2503 ieee80211_get_vif_queues(struct ieee80211_local *local, 2504 struct ieee80211_sub_if_data *sdata); 2505 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, 2506 unsigned long queues, 2507 enum queue_stop_reason reason, 2508 bool refcounted); 2509 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, 2510 unsigned long queues, 2511 enum queue_stop_reason reason, 2512 bool refcounted); 2513 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, 2514 enum queue_stop_reason reason, 2515 bool refcounted); 2516 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, 2517 enum queue_stop_reason reason, 2518 bool refcounted); 2519 static inline void 2520 ieee80211_stop_vif_queues(struct ieee80211_local *local, 2521 struct ieee80211_sub_if_data *sdata, 2522 enum queue_stop_reason reason) 2523 { 2524 ieee80211_stop_queues_by_reason(&local->hw, 2525 ieee80211_get_vif_queues(local, sdata), 2526 reason, true); 2527 } 2528 2529 static inline void 2530 ieee80211_wake_vif_queues(struct ieee80211_local *local, 2531 struct ieee80211_sub_if_data *sdata, 2532 enum queue_stop_reason reason) 2533 { 2534 ieee80211_wake_queues_by_reason(&local->hw, 2535 ieee80211_get_vif_queues(local, sdata), 2536 reason, true); 2537 } 2538 static inline void 2539 ieee80211_stop_vif_queues_norefcount(struct ieee80211_local *local, 2540 struct ieee80211_sub_if_data *sdata, 2541 enum queue_stop_reason reason) 2542 { 2543 ieee80211_stop_queues_by_reason(&local->hw, 2544 ieee80211_get_vif_queues(local, sdata), 2545 reason, false); 2546 } 2547 static inline void 2548 ieee80211_wake_vif_queues_norefcount(struct ieee80211_local *local, 2549 struct ieee80211_sub_if_data *sdata, 2550 enum queue_stop_reason reason) 2551 { 2552 ieee80211_wake_queues_by_reason(&local->hw, 2553 ieee80211_get_vif_queues(local, sdata), 2554 reason, false); 2555 } 2556 void ieee80211_add_pending_skb(struct ieee80211_local *local, 2557 struct sk_buff *skb); 2558 void ieee80211_add_pending_skbs(struct ieee80211_local *local, 2559 struct sk_buff_head *skbs); 2560 void ieee80211_flush_queues(struct ieee80211_local *local, 2561 struct ieee80211_sub_if_data *sdata, bool drop); 2562 void __ieee80211_flush_queues(struct ieee80211_local *local, 2563 struct ieee80211_sub_if_data *sdata, 2564 unsigned int queues, bool drop); 2565 2566 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local) 2567 { 2568 /* 2569 * It's unsafe to try to do any work during reconfigure flow. 2570 * When the flow ends the work will be requeued. 2571 */ 2572 if (local->in_reconfig) 2573 return false; 2574 2575 /* 2576 * If quiescing is set, we are racing with __ieee80211_suspend. 2577 * __ieee80211_suspend flushes the workers after setting quiescing, 2578 * and we check quiescing / suspended before enqueuing new workers. 2579 * We should abort the worker to avoid the races below. 2580 */ 2581 if (local->quiescing) 2582 return false; 2583 2584 /* 2585 * We might already be suspended if the following scenario occurs: 2586 * __ieee80211_suspend Control path 2587 * 2588 * if (local->quiescing) 2589 * return; 2590 * local->quiescing = true; 2591 * flush_workqueue(); 2592 * queue_work(...); 2593 * local->suspended = true; 2594 * local->quiescing = false; 2595 * worker starts running... 2596 */ 2597 if (local->suspended) 2598 return false; 2599 2600 return true; 2601 } 2602 2603 int ieee80211_txq_setup_flows(struct ieee80211_local *local); 2604 void ieee80211_txq_set_params(struct ieee80211_local *local, int radio_idx); 2605 void ieee80211_txq_teardown_flows(struct ieee80211_local *local); 2606 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata, 2607 struct sta_info *sta, 2608 struct txq_info *txq, int tid); 2609 void ieee80211_txq_purge(struct ieee80211_local *local, 2610 struct txq_info *txqi); 2611 void ieee80211_purge_sta_txqs(struct sta_info *sta); 2612 void ieee80211_txq_remove_vlan(struct ieee80211_local *local, 2613 struct ieee80211_sub_if_data *sdata); 2614 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 2615 struct txq_info *txqi); 2616 void ieee80211_wake_txqs(struct tasklet_struct *t); 2617 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, 2618 u16 transaction, u16 auth_alg, u16 status, 2619 const u8 *extra, size_t extra_len, const u8 *bssid, 2620 const u8 *da, const u8 *key, u8 key_len, u8 key_idx, 2621 u32 tx_flags); 2622 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, 2623 const u8 *da, const u8 *bssid, 2624 u16 stype, u16 reason, 2625 bool send_frame, u8 *frame_buf); 2626 2627 enum { 2628 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0), 2629 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1), 2630 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2), 2631 }; 2632 2633 int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer, 2634 size_t buffer_len, 2635 struct ieee80211_scan_ies *ie_desc, 2636 const u8 *ie, size_t ie_len, 2637 u8 bands_used, u32 *rate_masks, 2638 struct cfg80211_chan_def *chandef, 2639 u32 flags); 2640 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, 2641 const u8 *src, const u8 *dst, 2642 u32 ratemask, 2643 struct ieee80211_channel *chan, 2644 const u8 *ssid, size_t ssid_len, 2645 const u8 *ie, size_t ie_len, 2646 u32 flags); 2647 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, 2648 struct ieee802_11_elems *elems, 2649 enum nl80211_band band, u32 *basic_rates); 2650 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2651 struct ieee80211_link_data *link, 2652 enum ieee80211_smps_mode smps_mode); 2653 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata, 2654 struct ieee80211_link_data *link); 2655 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata, 2656 int link_id); 2657 2658 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset); 2659 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 2660 u16 cap); 2661 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 2662 const struct cfg80211_chan_def *chandef, 2663 u16 prot_mode, bool rifs_mode); 2664 void ieee80211_ie_build_wide_bw_cs(u8 *pos, 2665 const struct cfg80211_chan_def *chandef); 2666 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2667 u32 cap); 2668 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2669 const struct cfg80211_chan_def *chandef); 2670 u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata); 2671 u8 *ieee80211_ie_build_he_oper(u8 *pos, const struct cfg80211_chan_def *chandef); 2672 u8 *ieee80211_ie_build_eht_oper(u8 *pos, const struct cfg80211_chan_def *chandef, 2673 const struct ieee80211_sta_eht_cap *eht_cap); 2674 int ieee80211_parse_bitrates(const struct ieee80211_supported_band *sband, 2675 const u8 *srates, int srates_len, u32 *rates); 2676 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo); 2677 void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata, 2678 struct ieee80211_sta_s1g_cap *caps, 2679 struct sk_buff *skb); 2680 void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata, 2681 struct sk_buff *skb); 2682 2683 /* element building in SKBs */ 2684 int ieee80211_put_srates_elem(struct sk_buff *skb, 2685 const struct ieee80211_supported_band *sband, 2686 u32 basic_rates, u32 masked_rates, 2687 u8 element_id); 2688 int ieee80211_put_he_cap(struct sk_buff *skb, 2689 struct ieee80211_sub_if_data *sdata, 2690 const struct ieee80211_supported_band *sband, 2691 const struct ieee80211_conn_settings *conn); 2692 int ieee80211_put_he_6ghz_cap(struct sk_buff *skb, 2693 struct ieee80211_sub_if_data *sdata, 2694 enum ieee80211_smps_mode smps_mode); 2695 int ieee80211_put_eht_cap(struct sk_buff *skb, 2696 struct ieee80211_sub_if_data *sdata, 2697 const struct ieee80211_supported_band *sband, 2698 const struct ieee80211_conn_settings *conn); 2699 int ieee80211_put_uhr_cap(struct sk_buff *skb, 2700 struct ieee80211_sub_if_data *sdata, 2701 const struct ieee80211_supported_band *sband); 2702 int ieee80211_put_reg_conn(struct sk_buff *skb, 2703 enum ieee80211_channel_flags flags); 2704 2705 /* channel management */ 2706 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper, 2707 struct cfg80211_chan_def *chandef); 2708 bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info, 2709 const struct ieee80211_vht_operation *oper, 2710 const struct ieee80211_ht_operation *htop, 2711 struct cfg80211_chan_def *chandef); 2712 void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation_info *info, 2713 struct cfg80211_chan_def *chandef); 2714 bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_local *local, 2715 const struct ieee80211_he_operation *he_oper, 2716 const struct ieee80211_eht_operation *eht_oper, 2717 struct cfg80211_chan_def *chandef); 2718 bool ieee80211_chandef_s1g_oper(struct ieee80211_local *local, 2719 const struct ieee80211_s1g_oper_ie *oper, 2720 struct cfg80211_chan_def *chandef); 2721 void ieee80211_chandef_downgrade(struct cfg80211_chan_def *chandef, 2722 struct ieee80211_conn_settings *conn); 2723 static inline void 2724 ieee80211_chanreq_downgrade(struct ieee80211_chan_req *chanreq, 2725 struct ieee80211_conn_settings *conn) 2726 { 2727 ieee80211_chandef_downgrade(&chanreq->oper, conn); 2728 if (WARN_ON(!conn)) 2729 return; 2730 if (conn->mode < IEEE80211_CONN_MODE_EHT) 2731 chanreq->ap.chan = NULL; 2732 } 2733 2734 bool ieee80211_chanreq_identical(const struct ieee80211_chan_req *a, 2735 const struct ieee80211_chan_req *b); 2736 2737 int __must_check 2738 _ieee80211_link_use_channel(struct ieee80211_link_data *link, 2739 const struct ieee80211_chan_req *req, 2740 enum ieee80211_chanctx_mode mode, 2741 bool assign_on_failure); 2742 2743 static inline int __must_check 2744 ieee80211_link_use_channel(struct ieee80211_link_data *link, 2745 const struct ieee80211_chan_req *req, 2746 enum ieee80211_chanctx_mode mode) 2747 { 2748 return _ieee80211_link_use_channel(link, req, mode, false); 2749 } 2750 2751 int __must_check 2752 ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link, 2753 const struct ieee80211_chan_req *req, 2754 enum ieee80211_chanctx_mode mode, 2755 bool radar_required); 2756 int __must_check 2757 ieee80211_link_use_reserved_context(struct ieee80211_link_data *link); 2758 void ieee80211_link_unreserve_chanctx(struct ieee80211_link_data *link); 2759 2760 int __must_check 2761 ieee80211_link_change_chanreq(struct ieee80211_link_data *link, 2762 const struct ieee80211_chan_req *req, 2763 u64 *changed); 2764 void __ieee80211_link_release_channel(struct ieee80211_link_data *link, 2765 bool skip_idle_recalc); 2766 void ieee80211_link_release_channel(struct ieee80211_link_data *link); 2767 void ieee80211_link_vlan_copy_chanctx(struct ieee80211_link_data *link); 2768 void ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link, 2769 bool clear); 2770 int ieee80211_chanctx_refcount(struct ieee80211_local *local, 2771 struct ieee80211_chanctx *ctx); 2772 2773 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local, 2774 struct ieee80211_chanctx *chanctx); 2775 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local, 2776 struct ieee80211_chanctx *ctx); 2777 bool ieee80211_is_radar_required(struct ieee80211_local *local, 2778 struct cfg80211_scan_request *req); 2779 bool ieee80211_is_radio_idx_in_scan_req(struct wiphy *wiphy, 2780 struct cfg80211_scan_request *scan_req, 2781 int radio_idx); 2782 2783 void ieee80211_dfs_cac_timer_work(struct wiphy *wiphy, struct wiphy_work *work); 2784 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local, 2785 struct ieee80211_chanctx *chanctx); 2786 void ieee80211_dfs_radar_detected_work(struct wiphy *wiphy, 2787 struct wiphy_work *work); 2788 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, 2789 struct cfg80211_csa_settings *csa_settings); 2790 void ieee80211_recalc_sb_count(struct ieee80211_sub_if_data *sdata, u64 tsf); 2791 void ieee80211_recalc_dtim(struct ieee80211_sub_if_data *sdata, u64 tsf); 2792 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, 2793 const struct cfg80211_chan_def *chandef, 2794 enum ieee80211_chanctx_mode chanmode, 2795 u8 radar_detect, int radio_idx); 2796 int ieee80211_max_num_channels(struct ieee80211_local *local, int radio_idx); 2797 u32 ieee80211_get_radio_mask(struct wiphy *wiphy, struct net_device *dev); 2798 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local, 2799 struct ieee80211_chanctx *ctx); 2800 2801 /* TDLS */ 2802 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 2803 const u8 *peer, int link_id, 2804 u8 action_code, u8 dialog_token, u16 status_code, 2805 u32 peer_capability, bool initiator, 2806 const u8 *extra_ies, size_t extra_ies_len); 2807 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 2808 const u8 *peer, enum nl80211_tdls_operation oper); 2809 void ieee80211_tdls_peer_del_work(struct wiphy *wiphy, struct wiphy_work *wk); 2810 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev, 2811 const u8 *addr, u8 oper_class, 2812 struct cfg80211_chan_def *chandef); 2813 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy, 2814 struct net_device *dev, 2815 const u8 *addr); 2816 void ieee80211_teardown_tdls_peers(struct ieee80211_link_data *link); 2817 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata, 2818 const u8 *peer, u16 reason); 2819 void 2820 ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata, 2821 struct sk_buff *skb); 2822 2823 2824 const char *ieee80211_get_reason_code_string(u16 reason_code); 2825 u16 ieee80211_encode_usf(int val); 2826 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, 2827 enum nl80211_iftype type); 2828 2829 extern const struct ethtool_ops ieee80211_ethtool_ops; 2830 2831 u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw, 2832 struct ieee80211_vif *vif, 2833 struct ieee80211_sta *pubsta, 2834 int len, bool ampdu); 2835 #ifdef CONFIG_MAC80211_NOINLINE 2836 #define debug_noinline noinline 2837 #else 2838 #define debug_noinline 2839 #endif 2840 2841 void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache); 2842 void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache); 2843 2844 u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata); 2845 2846 void ieee80211_rx_eml_op_mode_notif(struct ieee80211_sub_if_data *sdata, 2847 struct sk_buff *skb); 2848 void 2849 ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata, 2850 struct ieee80211_supported_band *sband, 2851 const u8 *he_cap_ie, u8 he_cap_len, 2852 const struct ieee80211_eht_cap_elem *eht_cap_ie_elem, 2853 u8 eht_cap_len, 2854 struct link_sta_info *link_sta); 2855 void ieee80211_process_neg_ttlm_req(struct ieee80211_sub_if_data *sdata, 2856 struct ieee80211_mgmt *mgmt, size_t len); 2857 void ieee80211_process_neg_ttlm_res(struct ieee80211_sub_if_data *sdata, 2858 struct ieee80211_mgmt *mgmt, size_t len); 2859 int ieee80211_req_neg_ttlm(struct ieee80211_sub_if_data *sdata, 2860 struct cfg80211_ttlm_params *params); 2861 void ieee80211_process_ttlm_teardown(struct ieee80211_sub_if_data *sdata); 2862 2863 void ieee80211_check_wbrf_support(struct ieee80211_local *local); 2864 void ieee80211_add_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef); 2865 void ieee80211_remove_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef); 2866 int ieee80211_mgd_set_epcs(struct ieee80211_sub_if_data *sdata, bool enable); 2867 void ieee80211_process_epcs_ena_resp(struct ieee80211_sub_if_data *sdata, 2868 struct ieee80211_mgmt *mgmt, size_t len); 2869 void ieee80211_process_epcs_teardown(struct ieee80211_sub_if_data *sdata, 2870 struct ieee80211_mgmt *mgmt, size_t len); 2871 2872 int ieee80211_mgd_assoc_ml_reconf(struct ieee80211_sub_if_data *sdata, 2873 struct cfg80211_ml_reconf_req *req); 2874 2875 void ieee80211_process_ml_reconf_resp(struct ieee80211_sub_if_data *sdata, 2876 struct ieee80211_mgmt *mgmt, size_t len); 2877 void ieee80211_stop_mbssid(struct ieee80211_sub_if_data *sdata); 2878 2879 void 2880 ieee80211_uhr_cap_ie_to_sta_uhr_cap(struct ieee80211_sub_if_data *sdata, 2881 struct ieee80211_supported_band *sband, 2882 const struct ieee80211_uhr_cap *uhr_cap, 2883 u8 uhr_cap_len, 2884 struct link_sta_info *link_sta); 2885 2886 #if IS_ENABLED(CONFIG_MAC80211_KUNIT_TEST) 2887 #define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym) EXPORT_SYMBOL_IF_KUNIT(sym) 2888 #define VISIBLE_IF_MAC80211_KUNIT 2889 ieee80211_rx_result 2890 ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx); 2891 int ieee80211_calc_chandef_subchan_offset(const struct cfg80211_chan_def *ap, 2892 u8 n_partial_subchans); 2893 void ieee80211_rearrange_tpe_psd(struct ieee80211_parsed_tpe_psd *psd, 2894 const struct cfg80211_chan_def *ap, 2895 const struct cfg80211_chan_def *used); 2896 struct ieee802_11_elems * 2897 ieee80211_determine_chan_mode(struct ieee80211_sub_if_data *sdata, 2898 struct ieee80211_conn_settings *conn, 2899 struct cfg80211_bss *cbss, int link_id, 2900 struct ieee80211_chan_req *chanreq, 2901 struct cfg80211_chan_def *ap_chandef, 2902 unsigned long *userspace_selectors); 2903 #else 2904 #define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym) 2905 #define VISIBLE_IF_MAC80211_KUNIT static 2906 #endif 2907 2908 #endif /* IEEE80211_I_H */ 2909