1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright 2002-2005, Instant802 Networks, Inc. 4 * Copyright 2005, Devicescape Software, Inc. 5 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> 6 * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net> 7 * Copyright 2013-2015 Intel Mobile Communications GmbH 8 * Copyright (C) 2018-2025 Intel Corporation 9 */ 10 11 #ifndef IEEE80211_I_H 12 #define IEEE80211_I_H 13 14 #include <linux/kernel.h> 15 #include <linux/device.h> 16 #include <linux/if_ether.h> 17 #include <linux/interrupt.h> 18 #include <linux/list.h> 19 #include <linux/netdevice.h> 20 #include <linux/skbuff.h> 21 #include <linux/workqueue.h> 22 #include <linux/types.h> 23 #include <linux/spinlock.h> 24 #include <linux/etherdevice.h> 25 #include <linux/leds.h> 26 #include <linux/idr.h> 27 #include <linux/rhashtable.h> 28 #include <linux/rbtree.h> 29 #include <kunit/visibility.h> 30 #include <net/ieee80211_radiotap.h> 31 #include <net/cfg80211.h> 32 #include <net/mac80211.h> 33 #include <net/fq.h> 34 #include "key.h" 35 #include "sta_info.h" 36 #include "debug.h" 37 #include "drop.h" 38 39 extern const struct cfg80211_ops mac80211_config_ops; 40 41 struct ieee80211_local; 42 struct ieee80211_mesh_fast_tx; 43 44 /* Maximum number of broadcast/multicast frames to buffer when some of the 45 * associated stations are using power saving. */ 46 #define AP_MAX_BC_BUFFER 128 47 48 /* Maximum number of frames buffered to all STAs, including multicast frames. 49 * Note: increasing this limit increases the potential memory requirement. Each 50 * frame can be up to about 2 kB long. */ 51 #define TOTAL_MAX_TX_BUFFER 512 52 53 /* Required encryption head and tailroom */ 54 #define IEEE80211_ENCRYPT_HEADROOM 8 55 #define IEEE80211_ENCRYPT_TAILROOM 18 56 57 /* power level hasn't been configured (or set to automatic) */ 58 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN 59 60 /* 61 * Some APs experience problems when working with U-APSD. Decreasing the 62 * probability of that happening by using legacy mode for all ACs but VO isn't 63 * enough. 64 * 65 * Cisco 4410N originally forced us to enable VO by default only because it 66 * treated non-VO ACs as legacy. 67 * 68 * However some APs (notably Netgear R7000) silently reclassify packets to 69 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval 70 * clients would never see some frames (e.g. ARP responses) or would fetch them 71 * accidentally after a long time. 72 * 73 * It makes little sense to enable u-APSD queues by default because it needs 74 * userspace applications to be aware of it to actually take advantage of the 75 * possible additional powersavings. Implicitly depending on driver autotrigger 76 * frame support doesn't make much sense. 77 */ 78 #define IEEE80211_DEFAULT_UAPSD_QUEUES 0 79 80 #define IEEE80211_DEFAULT_MAX_SP_LEN \ 81 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 82 83 extern const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS]; 84 85 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */) 86 87 #define IEEE80211_MAX_NAN_INSTANCE_ID 255 88 89 /* 90 * Current mac80211 implementation supports a maximum of 1600 AIDS 91 * for S1G interfaces. With regards to an S1G TIM, this covers 25 blocks 92 * as each block is 64 AIDs. 93 */ 94 #define IEEE80211_MAX_SUPPORTED_S1G_AID 1600 95 #define IEEE80211_MAX_SUPPORTED_S1G_TIM_BLOCKS 25 96 97 enum ieee80211_status_data { 98 IEEE80211_STATUS_TYPE_MASK = 0x00f, 99 IEEE80211_STATUS_TYPE_INVALID = 0, 100 IEEE80211_STATUS_TYPE_SMPS = 1, 101 IEEE80211_STATUS_TYPE_NEG_TTLM = 2, 102 IEEE80211_STATUS_SUBDATA_MASK = 0x1ff0, 103 }; 104 105 static inline bool 106 ieee80211_sta_keep_active(struct sta_info *sta, u8 ac) 107 { 108 /* Keep a station's queues on the active list for deficit accounting 109 * purposes if it was active or queued during the last 100ms. 110 */ 111 return time_before_eq(jiffies, sta->airtime[ac].last_active + HZ / 10); 112 } 113 114 struct ieee80211_bss { 115 u32 device_ts_beacon, device_ts_presp; 116 117 bool wmm_used; 118 bool uapsd_supported; 119 120 #define IEEE80211_MAX_SUPP_RATES 32 121 u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; 122 size_t supp_rates_len; 123 struct ieee80211_rate *beacon_rate; 124 125 u32 vht_cap_info; 126 127 /* 128 * During association, we save an ERP value from a probe response so 129 * that we can feed ERP info to the driver when handling the 130 * association completes. these fields probably won't be up-to-date 131 * otherwise, you probably don't want to use them. 132 */ 133 bool has_erp_value; 134 u8 erp_value; 135 136 /* Keep track of the corruption of the last beacon/probe response. */ 137 u8 corrupt_data; 138 139 /* Keep track of what bits of information we have valid info for. */ 140 u8 valid_data; 141 }; 142 143 /** 144 * enum ieee80211_bss_corrupt_data_flags - BSS data corruption flags 145 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted 146 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted 147 * 148 * These are bss flags that are attached to a bss in the 149 * @corrupt_data field of &struct ieee80211_bss. 150 */ 151 enum ieee80211_bss_corrupt_data_flags { 152 IEEE80211_BSS_CORRUPT_BEACON = BIT(0), 153 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1) 154 }; 155 156 /** 157 * enum ieee80211_bss_valid_data_flags - BSS valid data flags 158 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE 159 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE 160 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE 161 * 162 * These are bss flags that are attached to a bss in the 163 * @valid_data field of &struct ieee80211_bss. They show which parts 164 * of the data structure were received as a result of an un-corrupted 165 * beacon/probe response. 166 */ 167 enum ieee80211_bss_valid_data_flags { 168 IEEE80211_BSS_VALID_WMM = BIT(1), 169 IEEE80211_BSS_VALID_RATES = BIT(2), 170 IEEE80211_BSS_VALID_ERP = BIT(3) 171 }; 172 173 typedef unsigned __bitwise ieee80211_tx_result; 174 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u) 175 #define TX_DROP ((__force ieee80211_tx_result) 1u) 176 #define TX_QUEUED ((__force ieee80211_tx_result) 2u) 177 178 #define IEEE80211_TX_UNICAST BIT(1) 179 #define IEEE80211_TX_PS_BUFFERED BIT(2) 180 181 struct ieee80211_tx_data { 182 struct sk_buff *skb; 183 struct sk_buff_head skbs; 184 struct ieee80211_local *local; 185 struct ieee80211_sub_if_data *sdata; 186 struct sta_info *sta; 187 struct ieee80211_key *key; 188 struct ieee80211_tx_rate rate; 189 190 unsigned int flags; 191 }; 192 193 /** 194 * enum ieee80211_packet_rx_flags - packet RX flags 195 * @IEEE80211_RX_AMSDU: a-MSDU packet 196 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed 197 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering 198 * 199 * These are per-frame flags that are attached to a frame in the 200 * @rx_flags field of &struct ieee80211_rx_status. 201 */ 202 enum ieee80211_packet_rx_flags { 203 IEEE80211_RX_AMSDU = BIT(3), 204 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4), 205 IEEE80211_RX_DEFERRED_RELEASE = BIT(5), 206 }; 207 208 /** 209 * enum ieee80211_rx_flags - RX data flags 210 * 211 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported 212 * to cfg80211_report_obss_beacon(). 213 * 214 * These flags are used across handling multiple interfaces 215 * for a single frame. 216 */ 217 enum ieee80211_rx_flags { 218 IEEE80211_RX_BEACON_REPORTED = BIT(0), 219 }; 220 221 struct ieee80211_rx_data { 222 struct list_head *list; 223 struct sk_buff *skb; 224 struct ieee80211_local *local; 225 struct ieee80211_sub_if_data *sdata; 226 struct ieee80211_link_data *link; 227 struct sta_info *sta; 228 struct link_sta_info *link_sta; 229 struct ieee80211_key *key; 230 231 unsigned int flags; 232 233 /* 234 * Index into sequence numbers array, 0..16 235 * since the last (16) is used for non-QoS, 236 * will be 16 on non-QoS frames. 237 */ 238 int seqno_idx; 239 240 /* 241 * Index into the security IV/PN arrays, 0..16 242 * since the last (16) is used for CCMP-encrypted 243 * management frames, will be set to 16 on mgmt 244 * frames and 0 on non-QoS frames. 245 */ 246 int security_idx; 247 248 int link_id; 249 250 union { 251 struct { 252 u32 iv32; 253 u16 iv16; 254 } tkip; 255 struct { 256 u8 pn[IEEE80211_CCMP_PN_LEN]; 257 } ccm_gcm; 258 }; 259 }; 260 261 struct ieee80211_csa_settings { 262 const u16 *counter_offsets_beacon; 263 const u16 *counter_offsets_presp; 264 265 int n_counter_offsets_beacon; 266 int n_counter_offsets_presp; 267 268 u8 count; 269 }; 270 271 struct ieee80211_color_change_settings { 272 u16 counter_offset_beacon; 273 u16 counter_offset_presp; 274 u8 count; 275 }; 276 277 struct beacon_data { 278 u8 *head, *tail; 279 int head_len, tail_len; 280 struct ieee80211_meshconf_ie *meshconf; 281 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM]; 282 u8 cntdwn_current_counter; 283 struct cfg80211_mbssid_elems *mbssid_ies; 284 struct cfg80211_rnr_elems *rnr_ies; 285 struct rcu_head rcu_head; 286 }; 287 288 struct probe_resp { 289 struct rcu_head rcu_head; 290 int len; 291 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM]; 292 u8 data[]; 293 }; 294 295 struct fils_discovery_data { 296 struct rcu_head rcu_head; 297 int len; 298 u8 data[]; 299 }; 300 301 struct unsol_bcast_probe_resp_data { 302 struct rcu_head rcu_head; 303 int len; 304 u8 data[]; 305 }; 306 307 struct s1g_short_beacon_data { 308 struct rcu_head rcu_head; 309 u8 *short_head; 310 u8 *short_tail; 311 int short_head_len; 312 int short_tail_len; 313 }; 314 315 struct ps_data { 316 /* yes, this looks ugly, but guarantees that we can later use 317 * bitmap_empty :) 318 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */ 319 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)] 320 __aligned(__alignof__(unsigned long)); 321 struct sk_buff_head bc_buf; 322 atomic_t num_sta_ps; /* number of stations in PS mode */ 323 int dtim_count; 324 bool dtim_bc_mc; 325 int sb_count; /* num short beacons til next long beacon */ 326 }; 327 328 struct ieee80211_if_ap { 329 struct list_head vlans; /* write-protected with RTNL and local->mtx */ 330 331 struct ps_data ps; 332 atomic_t num_mcast_sta; /* number of stations receiving multicast */ 333 334 bool multicast_to_unicast; 335 bool active; 336 }; 337 338 struct ieee80211_if_vlan { 339 struct list_head list; /* write-protected with RTNL and local->mtx */ 340 341 /* used for all tx if the VLAN is configured to 4-addr mode */ 342 struct sta_info __rcu *sta; 343 atomic_t num_mcast_sta; /* number of stations receiving multicast */ 344 }; 345 346 struct mesh_stats { 347 __u32 fwded_mcast; /* Mesh forwarded multicast frames */ 348 __u32 fwded_unicast; /* Mesh forwarded unicast frames */ 349 __u32 fwded_frames; /* Mesh total forwarded frames */ 350 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/ 351 __u32 dropped_frames_no_route; /* Not transmitted, no route found */ 352 }; 353 354 #define PREQ_Q_F_START 0x1 355 #define PREQ_Q_F_REFRESH 0x2 356 struct mesh_preq_queue { 357 struct list_head list; 358 u8 dst[ETH_ALEN]; 359 u8 flags; 360 }; 361 362 struct ieee80211_roc_work { 363 struct list_head list; 364 365 struct ieee80211_sub_if_data *sdata; 366 367 struct ieee80211_channel *chan; 368 369 bool started, abort, hw_begun, notified; 370 bool on_channel; 371 372 unsigned long start_time; 373 374 u32 duration, req_duration; 375 struct sk_buff *frame; 376 u64 cookie, mgmt_tx_cookie; 377 enum ieee80211_roc_type type; 378 }; 379 380 /* flags used in struct ieee80211_if_managed.flags */ 381 enum ieee80211_sta_flags { 382 IEEE80211_STA_CONNECTION_POLL = BIT(1), 383 IEEE80211_STA_CONTROL_PORT = BIT(2), 384 IEEE80211_STA_MFP_ENABLED = BIT(6), 385 IEEE80211_STA_UAPSD_ENABLED = BIT(7), 386 IEEE80211_STA_NULLFUNC_ACKED = BIT(8), 387 IEEE80211_STA_ENABLE_RRM = BIT(15), 388 }; 389 390 enum ieee80211_conn_mode { 391 IEEE80211_CONN_MODE_S1G, 392 IEEE80211_CONN_MODE_LEGACY, 393 IEEE80211_CONN_MODE_HT, 394 IEEE80211_CONN_MODE_VHT, 395 IEEE80211_CONN_MODE_HE, 396 IEEE80211_CONN_MODE_EHT, 397 }; 398 399 #define IEEE80211_CONN_MODE_HIGHEST IEEE80211_CONN_MODE_EHT 400 401 enum ieee80211_conn_bw_limit { 402 IEEE80211_CONN_BW_LIMIT_20, 403 IEEE80211_CONN_BW_LIMIT_40, 404 IEEE80211_CONN_BW_LIMIT_80, 405 IEEE80211_CONN_BW_LIMIT_160, /* also 80+80 */ 406 IEEE80211_CONN_BW_LIMIT_320, 407 }; 408 409 struct ieee80211_conn_settings { 410 enum ieee80211_conn_mode mode; 411 enum ieee80211_conn_bw_limit bw_limit; 412 }; 413 414 extern const struct ieee80211_conn_settings ieee80211_conn_settings_unlimited; 415 416 struct ieee80211_mgd_auth_data { 417 struct cfg80211_bss *bss; 418 unsigned long timeout; 419 int tries; 420 u16 algorithm, expected_transaction; 421 422 unsigned long userspace_selectors[BITS_TO_LONGS(128)]; 423 424 u8 key[WLAN_KEY_LEN_WEP104]; 425 u8 key_len, key_idx; 426 bool done, waiting; 427 bool peer_confirmed; 428 bool timeout_started; 429 int link_id; 430 431 u8 ap_addr[ETH_ALEN] __aligned(2); 432 433 u16 sae_trans, sae_status; 434 size_t data_len; 435 u8 data[]; 436 }; 437 438 struct ieee80211_mgd_assoc_data { 439 struct { 440 struct cfg80211_bss *bss; 441 442 u8 addr[ETH_ALEN] __aligned(2); 443 444 u8 ap_ht_param; 445 446 struct ieee80211_vht_cap ap_vht_cap; 447 448 size_t elems_len; 449 u8 *elems; /* pointing to inside ie[] below */ 450 451 struct ieee80211_conn_settings conn; 452 453 u16 status; 454 455 bool disabled; 456 } link[IEEE80211_MLD_MAX_NUM_LINKS]; 457 458 u8 ap_addr[ETH_ALEN] __aligned(2); 459 460 /* this is for a workaround, so we use it only for non-MLO */ 461 const u8 *supp_rates; 462 u8 supp_rates_len; 463 464 unsigned long timeout; 465 int tries; 466 467 u8 prev_ap_addr[ETH_ALEN]; 468 u8 ssid[IEEE80211_MAX_SSID_LEN]; 469 u8 ssid_len; 470 bool wmm, uapsd; 471 bool need_beacon; 472 bool synced; 473 bool timeout_started; 474 bool comeback; /* whether the AP has requested association comeback */ 475 bool s1g; 476 bool spp_amsdu; 477 478 s8 assoc_link_id; 479 480 __le16 ext_mld_capa_ops; 481 482 u8 fils_nonces[2 * FILS_NONCE_LEN]; 483 u8 fils_kek[FILS_MAX_KEK_LEN]; 484 size_t fils_kek_len; 485 486 size_t ie_len; 487 u8 *ie_pos; /* used to fill ie[] with link[].elems */ 488 u8 ie[]; 489 }; 490 491 struct ieee80211_sta_tx_tspec { 492 /* timestamp of the first packet in the time slice */ 493 unsigned long time_slice_start; 494 495 u32 admitted_time; /* in usecs, unlike over the air */ 496 u8 tsid; 497 s8 up; /* signed to be able to invalidate with -1 during teardown */ 498 499 /* consumed TX time in microseconds in the time slice */ 500 u32 consumed_tx_time; 501 enum { 502 TX_TSPEC_ACTION_NONE = 0, 503 TX_TSPEC_ACTION_DOWNGRADE, 504 TX_TSPEC_ACTION_STOP_DOWNGRADE, 505 } action; 506 bool downgraded; 507 }; 508 509 /* Advertised TID-to-link mapping info */ 510 struct ieee80211_adv_ttlm_info { 511 /* time in TUs at which the new mapping is established, or 0 if there is 512 * no planned advertised TID-to-link mapping 513 */ 514 u16 switch_time; 515 u32 duration; /* duration of the planned T2L map in TUs */ 516 u16 map; /* map of usable links for all TIDs */ 517 bool active; /* whether the advertised mapping is active or not */ 518 }; 519 520 DECLARE_EWMA(beacon_signal, 4, 4) 521 522 struct ieee80211_if_managed { 523 struct timer_list timer; 524 struct timer_list conn_mon_timer; 525 struct timer_list bcn_mon_timer; 526 struct wiphy_work monitor_work; 527 struct wiphy_work beacon_connection_loss_work; 528 struct wiphy_work csa_connection_drop_work; 529 530 unsigned long beacon_timeout; 531 unsigned long probe_timeout; 532 int probe_send_count; 533 bool nullfunc_failed; 534 u8 connection_loss:1, 535 driver_disconnect:1, 536 reconnect:1, 537 associated:1; 538 539 struct ieee80211_mgd_auth_data *auth_data; 540 struct ieee80211_mgd_assoc_data *assoc_data; 541 542 unsigned long userspace_selectors[BITS_TO_LONGS(128)]; 543 544 bool powersave; /* powersave requested for this iface */ 545 bool broken_ap; /* AP is broken -- turn off powersave */ 546 547 unsigned int flags; 548 549 u16 mcast_seq_last; 550 551 bool status_acked; 552 bool status_received; 553 __le16 status_fc; 554 555 enum { 556 IEEE80211_MFP_DISABLED, 557 IEEE80211_MFP_OPTIONAL, 558 IEEE80211_MFP_REQUIRED 559 } mfp; /* management frame protection */ 560 561 /* 562 * Bitmask of enabled u-apsd queues, 563 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association 564 * to take effect. 565 */ 566 unsigned int uapsd_queues; 567 568 /* 569 * Maximum number of buffered frames AP can deliver during a 570 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar. 571 * Needs a new association to take effect. 572 */ 573 unsigned int uapsd_max_sp_len; 574 575 u8 use_4addr; 576 577 /* 578 * State variables for keeping track of RSSI of the AP currently 579 * connected to and informing driver when RSSI has gone 580 * below/above a certain threshold. 581 */ 582 int rssi_min_thold, rssi_max_thold; 583 584 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ 585 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ 586 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */ 587 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */ 588 struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */ 589 struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */ 590 591 /* TDLS support */ 592 u8 tdls_peer[ETH_ALEN] __aligned(2); 593 struct wiphy_delayed_work tdls_peer_del_work; 594 struct sk_buff *orig_teardown_skb; /* The original teardown skb */ 595 struct sk_buff *teardown_skb; /* A copy to send through the AP */ 596 spinlock_t teardown_lock; /* To lock changing teardown_skb */ 597 bool tdls_wider_bw_prohibited; 598 599 /* WMM-AC TSPEC support */ 600 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS]; 601 /* Use a separate work struct so that we can do something here 602 * while the sdata->work is flushing the queues, for example. 603 * otherwise, in scenarios where we hardly get any traffic out 604 * on the BE queue, but there's a lot of VO traffic, we might 605 * get stuck in a downgraded situation and flush takes forever. 606 */ 607 struct wiphy_delayed_work tx_tspec_wk; 608 609 /* Information elements from the last transmitted (Re)Association 610 * Request frame. 611 */ 612 u8 *assoc_req_ies; 613 size_t assoc_req_ies_len; 614 615 struct wiphy_delayed_work ml_reconf_work; 616 u16 removed_links; 617 618 /* TID-to-link mapping support */ 619 struct wiphy_delayed_work ttlm_work; 620 struct ieee80211_adv_ttlm_info ttlm_info; 621 struct wiphy_work teardown_ttlm_work; 622 623 /* dialog token enumerator for neg TTLM request */ 624 u8 dialog_token_alloc; 625 struct wiphy_delayed_work neg_ttlm_timeout_work; 626 627 /* Locally initiated multi-link reconfiguration */ 628 struct { 629 struct ieee80211_mgd_assoc_data *add_links_data; 630 struct wiphy_delayed_work wk; 631 u16 removed_links; 632 u16 added_links; 633 u8 dialog_token; 634 } reconf; 635 636 /* Support for epcs */ 637 struct { 638 bool enabled; 639 u8 dialog_token; 640 } epcs; 641 }; 642 643 struct ieee80211_if_ibss { 644 struct timer_list timer; 645 struct wiphy_work csa_connection_drop_work; 646 647 unsigned long last_scan_completed; 648 649 u32 basic_rates; 650 651 bool fixed_bssid; 652 bool fixed_channel; 653 bool privacy; 654 655 bool control_port; 656 bool userspace_handles_dfs; 657 658 u8 bssid[ETH_ALEN] __aligned(2); 659 u8 ssid[IEEE80211_MAX_SSID_LEN]; 660 u8 ssid_len, ie_len; 661 u8 *ie; 662 struct cfg80211_chan_def chandef; 663 664 unsigned long ibss_join_req; 665 /* probe response/beacon for IBSS */ 666 struct beacon_data __rcu *presp; 667 668 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ 669 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ 670 671 spinlock_t incomplete_lock; 672 struct list_head incomplete_stations; 673 674 enum { 675 IEEE80211_IBSS_MLME_SEARCH, 676 IEEE80211_IBSS_MLME_JOINED, 677 } state; 678 }; 679 680 /** 681 * struct ieee80211_if_ocb - OCB mode state 682 * 683 * @housekeeping_timer: timer for periodic invocation of a housekeeping task 684 * @wrkq_flags: OCB deferred task action 685 * @incomplete_lock: delayed STA insertion lock 686 * @incomplete_stations: list of STAs waiting for delayed insertion 687 * @joined: indication if the interface is connected to an OCB network 688 */ 689 struct ieee80211_if_ocb { 690 struct timer_list housekeeping_timer; 691 unsigned long wrkq_flags; 692 693 spinlock_t incomplete_lock; 694 struct list_head incomplete_stations; 695 696 bool joined; 697 }; 698 699 /** 700 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface 701 * 702 * these declarations define the interface, which enables 703 * vendor-specific mesh synchronization 704 * 705 * @rx_bcn_presp: beacon/probe response was received 706 * @adjust_tsf: TSF adjustment method 707 */ 708 struct ieee80211_mesh_sync_ops { 709 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, u16 stype, 710 struct ieee80211_mgmt *mgmt, unsigned int len, 711 const struct ieee80211_meshconf_ie *mesh_cfg, 712 struct ieee80211_rx_status *rx_status); 713 714 /* should be called with beacon_data under RCU read lock */ 715 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata, 716 struct beacon_data *beacon); 717 /* add other framework functions here */ 718 }; 719 720 struct mesh_csa_settings { 721 struct rcu_head rcu_head; 722 struct cfg80211_csa_settings settings; 723 }; 724 725 /** 726 * struct mesh_table - mesh hash table 727 * 728 * @known_gates: list of known mesh gates and their mpaths by the station. The 729 * gate's mpath may or may not be resolved and active. 730 * @gates_lock: protects updates to known_gates 731 * @rhead: the rhashtable containing struct mesh_paths, keyed by dest addr 732 * @walk_head: linked list containing all mesh_path objects 733 * @walk_lock: lock protecting walk_head 734 * @entries: number of entries in the table 735 */ 736 struct mesh_table { 737 struct hlist_head known_gates; 738 spinlock_t gates_lock; 739 struct rhashtable rhead; 740 struct hlist_head walk_head; 741 spinlock_t walk_lock; 742 atomic_t entries; /* Up to MAX_MESH_NEIGHBOURS */ 743 }; 744 745 /** 746 * struct mesh_tx_cache - mesh fast xmit header cache 747 * 748 * @rht: hash table containing struct ieee80211_mesh_fast_tx, using skb DA as key 749 * @walk_head: linked list containing all ieee80211_mesh_fast_tx objects 750 * @walk_lock: lock protecting walk_head and rht 751 */ 752 struct mesh_tx_cache { 753 struct rhashtable rht; 754 struct hlist_head walk_head; 755 spinlock_t walk_lock; 756 }; 757 758 struct ieee80211_if_mesh { 759 struct timer_list housekeeping_timer; 760 struct timer_list mesh_path_timer; 761 struct timer_list mesh_path_root_timer; 762 763 unsigned long wrkq_flags; 764 unsigned long mbss_changed[64 / BITS_PER_LONG]; 765 766 bool userspace_handles_dfs; 767 768 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN]; 769 size_t mesh_id_len; 770 /* Active Path Selection Protocol Identifier */ 771 u8 mesh_pp_id; 772 /* Active Path Selection Metric Identifier */ 773 u8 mesh_pm_id; 774 /* Congestion Control Mode Identifier */ 775 u8 mesh_cc_id; 776 /* Synchronization Protocol Identifier */ 777 u8 mesh_sp_id; 778 /* Authentication Protocol Identifier */ 779 u8 mesh_auth_id; 780 /* Local mesh Sequence Number */ 781 u32 sn; 782 /* Last used PREQ ID */ 783 u32 preq_id; 784 atomic_t mpaths; 785 /* Timestamp of last SN update */ 786 unsigned long last_sn_update; 787 /* Time when it's ok to send next PERR */ 788 unsigned long next_perr; 789 /* Timestamp of last PREQ sent */ 790 unsigned long last_preq; 791 struct mesh_rmc *rmc; 792 spinlock_t mesh_preq_queue_lock; 793 struct mesh_preq_queue preq_queue; 794 int preq_queue_len; 795 struct mesh_stats mshstats; 796 struct mesh_config mshcfg; 797 atomic_t estab_plinks; 798 atomic_t mesh_seqnum; 799 bool accepting_plinks; 800 int num_gates; 801 struct beacon_data __rcu *beacon; 802 const u8 *ie; 803 u8 ie_len; 804 enum { 805 IEEE80211_MESH_SEC_NONE = 0x0, 806 IEEE80211_MESH_SEC_AUTHED = 0x1, 807 IEEE80211_MESH_SEC_SECURED = 0x2, 808 } security; 809 bool user_mpm; 810 /* Extensible Synchronization Framework */ 811 const struct ieee80211_mesh_sync_ops *sync_ops; 812 s64 sync_offset_clockdrift_max; 813 spinlock_t sync_offset_lock; 814 /* mesh power save */ 815 enum nl80211_mesh_power_mode nonpeer_pm; 816 int ps_peers_light_sleep; 817 int ps_peers_deep_sleep; 818 struct ps_data ps; 819 /* Channel Switching Support */ 820 struct mesh_csa_settings __rcu *csa; 821 enum { 822 IEEE80211_MESH_CSA_ROLE_NONE, 823 IEEE80211_MESH_CSA_ROLE_INIT, 824 IEEE80211_MESH_CSA_ROLE_REPEATER, 825 } csa_role; 826 u8 chsw_ttl; 827 u16 pre_value; 828 829 /* offset from skb->data while building IE */ 830 int meshconf_offset; 831 832 struct mesh_table mesh_paths; 833 struct mesh_table mpp_paths; /* Store paths for MPP&MAP */ 834 int mesh_paths_generation; 835 int mpp_paths_generation; 836 struct mesh_tx_cache tx_cache; 837 }; 838 839 #ifdef CONFIG_MAC80211_MESH 840 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ 841 do { (msh)->mshstats.name++; } while (0) 842 #else 843 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ 844 do { } while (0) 845 #endif 846 847 /** 848 * enum ieee80211_sub_if_data_flags - virtual interface flags 849 * 850 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets 851 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between 852 * associated stations and deliver multicast frames both 853 * back to wireless media and to the local net stack. 854 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume. 855 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver 856 * @IEEE80211_SDATA_DISCONNECT_HW_RESTART: Disconnect after hardware restart 857 * recovery 858 */ 859 enum ieee80211_sub_if_data_flags { 860 IEEE80211_SDATA_ALLMULTI = BIT(0), 861 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3), 862 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4), 863 IEEE80211_SDATA_IN_DRIVER = BIT(5), 864 IEEE80211_SDATA_DISCONNECT_HW_RESTART = BIT(6), 865 }; 866 867 /** 868 * enum ieee80211_sdata_state_bits - virtual interface state bits 869 * @SDATA_STATE_RUNNING: virtual interface is up & running; this 870 * mirrors netif_running() but is separate for interface type 871 * change handling while the interface is up 872 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel 873 * mode, so queues are stopped 874 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due 875 * to offchannel, reset when offchannel returns 876 */ 877 enum ieee80211_sdata_state_bits { 878 SDATA_STATE_RUNNING, 879 SDATA_STATE_OFFCHANNEL, 880 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, 881 }; 882 883 /** 884 * enum ieee80211_chanctx_mode - channel context configuration mode 885 * 886 * @IEEE80211_CHANCTX_SHARED: channel context may be used by 887 * multiple interfaces 888 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used 889 * only by a single interface. This can be used for example for 890 * non-fixed channel IBSS. 891 */ 892 enum ieee80211_chanctx_mode { 893 IEEE80211_CHANCTX_SHARED, 894 IEEE80211_CHANCTX_EXCLUSIVE 895 }; 896 897 /** 898 * enum ieee80211_chanctx_replace_state - channel context replacement state 899 * 900 * This is used for channel context in-place reservations that require channel 901 * context switch/swap. 902 * 903 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place 904 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced 905 * by a (not yet registered) channel context pointed by %replace_ctx. 906 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context 907 * replaces an existing channel context pointed to by %replace_ctx. 908 */ 909 enum ieee80211_chanctx_replace_state { 910 IEEE80211_CHANCTX_REPLACE_NONE, 911 IEEE80211_CHANCTX_WILL_BE_REPLACED, 912 IEEE80211_CHANCTX_REPLACES_OTHER, 913 }; 914 915 struct ieee80211_chanctx { 916 struct list_head list; 917 struct rcu_head rcu_head; 918 919 struct list_head assigned_links; 920 struct list_head reserved_links; 921 922 enum ieee80211_chanctx_replace_state replace_state; 923 struct ieee80211_chanctx *replace_ctx; 924 925 enum ieee80211_chanctx_mode mode; 926 bool driver_present; 927 928 /* temporary data for search algorithm etc. */ 929 struct ieee80211_chan_req req; 930 931 bool radar_detected; 932 933 /* MUST be last - ends in a flexible-array member. */ 934 struct ieee80211_chanctx_conf conf; 935 }; 936 937 struct mac80211_qos_map { 938 struct cfg80211_qos_map qos_map; 939 struct rcu_head rcu_head; 940 }; 941 942 enum txq_info_flags { 943 IEEE80211_TXQ_STOP, 944 IEEE80211_TXQ_AMPDU, 945 IEEE80211_TXQ_NO_AMSDU, 946 IEEE80211_TXQ_DIRTY, 947 }; 948 949 /** 950 * struct txq_info - per tid queue 951 * 952 * @tin: contains packets split into multiple flows 953 * @def_cvars: codel vars for the @tin's default_flow 954 * @cstats: code statistics for this queue 955 * @frags: used to keep fragments created after dequeue 956 * @schedule_order: used with ieee80211_local->active_txqs 957 * @schedule_round: counter to prevent infinite loops on TXQ scheduling 958 * @flags: TXQ flags from &enum txq_info_flags 959 * @txq: the driver visible part 960 */ 961 struct txq_info { 962 struct fq_tin tin; 963 struct codel_vars def_cvars; 964 struct codel_stats cstats; 965 966 u16 schedule_round; 967 struct list_head schedule_order; 968 969 struct sk_buff_head frags; 970 971 unsigned long flags; 972 973 /* keep last! */ 974 struct ieee80211_txq txq; 975 }; 976 977 struct ieee80211_if_mntr { 978 u32 flags; 979 u8 mu_follow_addr[ETH_ALEN] __aligned(2); 980 981 struct list_head list; 982 }; 983 984 /** 985 * struct ieee80211_if_nan - NAN state 986 * 987 * @conf: current NAN configuration 988 * @started: true iff NAN is started 989 * @func_lock: lock for @func_inst_ids 990 * @function_inst_ids: a bitmap of available instance_id's 991 */ 992 struct ieee80211_if_nan { 993 struct cfg80211_nan_conf conf; 994 bool started; 995 996 /* protects function_inst_ids */ 997 spinlock_t func_lock; 998 struct idr function_inst_ids; 999 }; 1000 1001 struct ieee80211_link_data_managed { 1002 u8 bssid[ETH_ALEN] __aligned(2); 1003 1004 u8 dtim_period; 1005 enum ieee80211_smps_mode req_smps, /* requested smps mode */ 1006 driver_smps_mode; /* smps mode request */ 1007 1008 struct ieee80211_conn_settings conn; 1009 1010 s16 p2p_noa_index; 1011 1012 bool tdls_chan_switch_prohibited; 1013 1014 bool have_beacon; 1015 bool tracking_signal_avg; 1016 bool disable_wmm_tracking; 1017 bool operating_11g_mode; 1018 1019 struct { 1020 struct wiphy_delayed_work switch_work; 1021 struct cfg80211_chan_def ap_chandef; 1022 struct ieee80211_parsed_tpe tpe; 1023 unsigned long time; 1024 bool waiting_bcn; 1025 bool ignored_same_chan; 1026 bool blocked_tx; 1027 } csa; 1028 1029 struct wiphy_work request_smps_work; 1030 /* used to reconfigure hardware SM PS */ 1031 struct wiphy_work recalc_smps; 1032 1033 bool beacon_crc_valid; 1034 u32 beacon_crc; 1035 struct ewma_beacon_signal ave_beacon_signal; 1036 int last_ave_beacon_signal; 1037 1038 /* 1039 * Number of Beacon frames used in ave_beacon_signal. This can be used 1040 * to avoid generating less reliable cqm events that would be based 1041 * only on couple of received frames. 1042 */ 1043 unsigned int count_beacon_signal; 1044 1045 /* Number of times beacon loss was invoked. */ 1046 unsigned int beacon_loss_count; 1047 1048 /* 1049 * Last Beacon frame signal strength average (ave_beacon_signal / 16) 1050 * that triggered a cqm event. 0 indicates that no event has been 1051 * generated for the current association. 1052 */ 1053 int last_cqm_event_signal; 1054 1055 int wmm_last_param_set; 1056 int mu_edca_last_param_set; 1057 }; 1058 1059 struct ieee80211_link_data_ap { 1060 struct beacon_data __rcu *beacon; 1061 struct probe_resp __rcu *probe_resp; 1062 struct fils_discovery_data __rcu *fils_discovery; 1063 struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp; 1064 struct s1g_short_beacon_data __rcu *s1g_short_beacon; 1065 1066 /* to be used after channel switch. */ 1067 struct cfg80211_beacon_data *next_beacon; 1068 }; 1069 1070 struct ieee80211_link_data { 1071 struct ieee80211_sub_if_data *sdata; 1072 unsigned int link_id; 1073 1074 struct list_head assigned_chanctx_list; /* protected by wiphy mutex */ 1075 struct list_head reserved_chanctx_list; /* protected by wiphy mutex */ 1076 1077 /* multicast keys only */ 1078 struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS + 1079 NUM_DEFAULT_MGMT_KEYS + 1080 NUM_DEFAULT_BEACON_KEYS]; 1081 struct ieee80211_key __rcu *default_multicast_key; 1082 struct ieee80211_key __rcu *default_mgmt_key; 1083 struct ieee80211_key __rcu *default_beacon_key; 1084 1085 1086 bool operating_11g_mode; 1087 1088 struct { 1089 struct wiphy_work finalize_work; 1090 struct ieee80211_chan_req chanreq; 1091 } csa; 1092 1093 struct wiphy_work color_change_finalize_work; 1094 struct wiphy_delayed_work color_collision_detect_work; 1095 u64 color_bitmap; 1096 1097 /* context reservation -- protected with wiphy mutex */ 1098 struct ieee80211_chanctx *reserved_chanctx; 1099 struct ieee80211_chan_req reserved; 1100 bool reserved_radar_required; 1101 bool reserved_ready; 1102 1103 u8 needed_rx_chains; 1104 enum ieee80211_smps_mode smps_mode; 1105 1106 int user_power_level; /* in dBm */ 1107 int ap_power_level; /* in dBm */ 1108 1109 bool radar_required; 1110 struct wiphy_delayed_work dfs_cac_timer_work; 1111 1112 union { 1113 struct ieee80211_link_data_managed mgd; 1114 struct ieee80211_link_data_ap ap; 1115 } u; 1116 1117 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS]; 1118 1119 struct ieee80211_bss_conf *conf; 1120 1121 #ifdef CONFIG_MAC80211_DEBUGFS 1122 struct dentry *debugfs_dir; 1123 #endif 1124 }; 1125 1126 struct ieee80211_sub_if_data { 1127 struct list_head list; 1128 1129 struct wireless_dev wdev; 1130 1131 /* keys */ 1132 struct list_head key_list; 1133 1134 /* count for keys needing tailroom space allocation */ 1135 int crypto_tx_tailroom_needed_cnt; 1136 int crypto_tx_tailroom_pending_dec; 1137 struct wiphy_delayed_work dec_tailroom_needed_wk; 1138 1139 struct net_device *dev; 1140 struct ieee80211_local *local; 1141 1142 unsigned int flags; 1143 1144 unsigned long state; 1145 1146 char name[IFNAMSIZ]; 1147 1148 struct ieee80211_fragment_cache frags; 1149 1150 /* TID bitmap for NoAck policy */ 1151 u16 noack_map; 1152 1153 /* bit field of ACM bits (BIT(802.1D tag)) */ 1154 u8 wmm_acm; 1155 1156 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS]; 1157 struct ieee80211_key __rcu *default_unicast_key; 1158 1159 u16 sequence_number; 1160 u16 mld_mcast_seq; 1161 __be16 control_port_protocol; 1162 bool control_port_no_encrypt; 1163 bool control_port_no_preauth; 1164 bool control_port_over_nl80211; 1165 1166 atomic_t num_tx_queued; 1167 struct mac80211_qos_map __rcu *qos_map; 1168 1169 struct wiphy_work work; 1170 struct sk_buff_head skb_queue; 1171 struct sk_buff_head status_queue; 1172 1173 /* 1174 * AP this belongs to: self in AP mode and 1175 * corresponding AP in VLAN mode, NULL for 1176 * all others (might be needed later in IBSS) 1177 */ 1178 struct ieee80211_if_ap *bss; 1179 1180 /* bitmap of allowed (non-MCS) rate indexes for rate control */ 1181 u32 rc_rateidx_mask[NUM_NL80211_BANDS]; 1182 1183 bool rc_has_mcs_mask[NUM_NL80211_BANDS]; 1184 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN]; 1185 1186 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS]; 1187 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX]; 1188 1189 /* Beacon frame (non-MCS) rate (as a bitmap) */ 1190 u32 beacon_rateidx_mask[NUM_NL80211_BANDS]; 1191 bool beacon_rate_set; 1192 1193 union { 1194 struct ieee80211_if_ap ap; 1195 struct ieee80211_if_vlan vlan; 1196 struct ieee80211_if_managed mgd; 1197 struct ieee80211_if_ibss ibss; 1198 struct ieee80211_if_mesh mesh; 1199 struct ieee80211_if_ocb ocb; 1200 struct ieee80211_if_mntr mntr; 1201 struct ieee80211_if_nan nan; 1202 } u; 1203 1204 struct ieee80211_link_data deflink; 1205 struct ieee80211_link_data __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS]; 1206 1207 /* for ieee80211_set_active_links_async() */ 1208 struct wiphy_work activate_links_work; 1209 u16 desired_active_links; 1210 1211 u16 restart_active_links; 1212 1213 #ifdef CONFIG_MAC80211_DEBUGFS 1214 struct { 1215 struct dentry *subdir_stations; 1216 struct dentry *default_unicast_key; 1217 struct dentry *default_multicast_key; 1218 struct dentry *default_mgmt_key; 1219 struct dentry *default_beacon_key; 1220 } debugfs; 1221 #endif 1222 1223 u32 tx_handlers_drop; 1224 /* must be last, dynamically sized area in this! */ 1225 struct ieee80211_vif vif; 1226 }; 1227 1228 static inline 1229 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p) 1230 { 1231 return container_of(p, struct ieee80211_sub_if_data, vif); 1232 } 1233 1234 #define sdata_dereference(p, sdata) \ 1235 wiphy_dereference(sdata->local->hw.wiphy, p) 1236 1237 #define for_each_sdata_link(_local, _link) \ 1238 /* outer loop just to define the variables ... */ \ 1239 for (struct ieee80211_sub_if_data *___sdata = NULL; \ 1240 !___sdata; \ 1241 ___sdata = (void *)~0 /* always stop */) \ 1242 list_for_each_entry(___sdata, &(_local)->interfaces, list) \ 1243 if (ieee80211_sdata_running(___sdata)) \ 1244 for (int ___link_id = 0; \ 1245 ___link_id < ARRAY_SIZE(___sdata->link); \ 1246 ___link_id++) \ 1247 if ((_link = wiphy_dereference((_local)->hw.wiphy, \ 1248 ___sdata->link[___link_id]))) 1249 1250 /* 1251 * for_each_sdata_link_rcu() must be used under RCU read lock. 1252 */ 1253 #define for_each_sdata_link_rcu(_local, _link) \ 1254 /* outer loop just to define the variables ... */ \ 1255 for (struct ieee80211_sub_if_data *___sdata = NULL; \ 1256 !___sdata; \ 1257 ___sdata = (void *)~0 /* always stop */) \ 1258 list_for_each_entry_rcu(___sdata, &(_local)->interfaces, list) \ 1259 if (ieee80211_sdata_running(___sdata)) \ 1260 for (int ___link_id = 0; \ 1261 ___link_id < ARRAY_SIZE((___sdata)->link); \ 1262 ___link_id++) \ 1263 if ((_link = rcu_dereference((___sdata)->link[___link_id]))) 1264 1265 #define for_each_link_data(sdata, __link) \ 1266 /* outer loop just to define the variable ... */ \ 1267 for (struct ieee80211_sub_if_data *__sdata = (sdata); __sdata; \ 1268 __sdata = NULL /* always stop */) \ 1269 for (int __link_id = 0; \ 1270 __link_id < ARRAY_SIZE((__sdata)->link); __link_id++) \ 1271 if ((!(__sdata)->vif.valid_links || \ 1272 (__sdata)->vif.valid_links & BIT(__link_id)) && \ 1273 ((__link) = sdata_dereference((__sdata)->link[__link_id], \ 1274 (__sdata)))) 1275 1276 /* 1277 * for_each_link_data_rcu should be used under RCU read lock. 1278 */ 1279 #define for_each_link_data_rcu(sdata, __link) \ 1280 /* outer loop just to define the variable ... */ \ 1281 for (struct ieee80211_sub_if_data *__sdata = (sdata); __sdata; \ 1282 __sdata = NULL /* always stop */) \ 1283 for (int __link_id = 0; \ 1284 __link_id < ARRAY_SIZE((__sdata)->link); __link_id++) \ 1285 if ((!(__sdata)->vif.valid_links || \ 1286 (__sdata)->vif.valid_links & BIT(__link_id)) && \ 1287 ((__link) = rcu_dereference((__sdata)->link[__link_id]))) \ 1288 1289 static inline int 1290 ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems *elems, 1291 struct cfg80211_rnr_elems *rnr_elems, 1292 u8 i) 1293 { 1294 int len = 0; 1295 1296 if (!elems || !elems->cnt || i > elems->cnt) 1297 return 0; 1298 1299 if (i < elems->cnt) { 1300 len = elems->elem[i].len; 1301 if (rnr_elems) { 1302 len += rnr_elems->elem[i].len; 1303 for (i = elems->cnt; i < rnr_elems->cnt; i++) 1304 len += rnr_elems->elem[i].len; 1305 } 1306 return len; 1307 } 1308 1309 /* i == elems->cnt, calculate total length of all MBSSID elements */ 1310 for (i = 0; i < elems->cnt; i++) 1311 len += elems->elem[i].len; 1312 1313 if (rnr_elems) { 1314 for (i = 0; i < rnr_elems->cnt; i++) 1315 len += rnr_elems->elem[i].len; 1316 } 1317 1318 return len; 1319 } 1320 1321 enum { 1322 IEEE80211_RX_MSG = 1, 1323 IEEE80211_TX_STATUS_MSG = 2, 1324 }; 1325 1326 enum queue_stop_reason { 1327 IEEE80211_QUEUE_STOP_REASON_DRIVER, 1328 IEEE80211_QUEUE_STOP_REASON_PS, 1329 IEEE80211_QUEUE_STOP_REASON_CSA, 1330 IEEE80211_QUEUE_STOP_REASON_AGGREGATION, 1331 IEEE80211_QUEUE_STOP_REASON_SUSPEND, 1332 IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 1333 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL, 1334 IEEE80211_QUEUE_STOP_REASON_FLUSH, 1335 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN, 1336 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID, 1337 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE, 1338 1339 IEEE80211_QUEUE_STOP_REASONS, 1340 }; 1341 1342 #ifdef CONFIG_MAC80211_LEDS 1343 struct tpt_led_trigger { 1344 char name[32]; 1345 const struct ieee80211_tpt_blink *blink_table; 1346 unsigned int blink_table_len; 1347 struct timer_list timer; 1348 struct ieee80211_local *local; 1349 unsigned long prev_traffic; 1350 unsigned long tx_bytes, rx_bytes; 1351 unsigned int active, want; 1352 bool running; 1353 }; 1354 #endif 1355 1356 /** 1357 * enum mac80211_scan_flags - currently active scan mode 1358 * 1359 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as 1360 * well be on the operating channel 1361 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to 1362 * determine if we are on the operating channel or not 1363 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating 1364 * channel. This should not interrupt normal traffic. 1365 * @SCAN_COMPLETED: Set for our scan work function when the driver reported 1366 * that the scan completed. 1367 * @SCAN_ABORTED: Set for our scan work function when the driver reported 1368 * a scan complete for an aborted scan. 1369 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being 1370 * cancelled. 1371 * @SCAN_BEACON_WAIT: Set whenever we're passive scanning because of radar/no-IR 1372 * and could send a probe request after receiving a beacon. 1373 * @SCAN_BEACON_DONE: Beacon received, we can now send a probe request 1374 */ 1375 enum mac80211_scan_flags { 1376 SCAN_SW_SCANNING, 1377 SCAN_HW_SCANNING, 1378 SCAN_ONCHANNEL_SCANNING, 1379 SCAN_COMPLETED, 1380 SCAN_ABORTED, 1381 SCAN_HW_CANCELLED, 1382 SCAN_BEACON_WAIT, 1383 SCAN_BEACON_DONE, 1384 }; 1385 1386 /** 1387 * enum mac80211_scan_state - scan state machine states 1388 * 1389 * @SCAN_DECISION: Main entry point to the scan state machine, this state 1390 * determines if we should keep on scanning or switch back to the 1391 * operating channel 1392 * @SCAN_SET_CHANNEL: Set the next channel to be scanned 1393 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses 1394 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to 1395 * send out data 1396 * @SCAN_RESUME: Resume the scan and scan the next channel 1397 * @SCAN_ABORT: Abort the scan and go back to operating channel 1398 */ 1399 enum mac80211_scan_state { 1400 SCAN_DECISION, 1401 SCAN_SET_CHANNEL, 1402 SCAN_SEND_PROBE, 1403 SCAN_SUSPEND, 1404 SCAN_RESUME, 1405 SCAN_ABORT, 1406 }; 1407 1408 DECLARE_STATIC_KEY_FALSE(aql_disable); 1409 1410 struct ieee80211_local { 1411 /* embed the driver visible part. 1412 * don't cast (use the static inlines below), but we keep 1413 * it first anyway so they become a no-op */ 1414 struct ieee80211_hw hw; 1415 1416 struct fq fq; 1417 struct codel_vars *cvars; 1418 struct codel_params cparams; 1419 1420 /* protects active_txqs and txqi->schedule_order */ 1421 spinlock_t active_txq_lock[IEEE80211_NUM_ACS]; 1422 struct list_head active_txqs[IEEE80211_NUM_ACS]; 1423 u16 schedule_round[IEEE80211_NUM_ACS]; 1424 1425 /* serializes ieee80211_handle_wake_tx_queue */ 1426 spinlock_t handle_wake_tx_queue_lock; 1427 1428 u16 airtime_flags; 1429 u32 aql_txq_limit_low[IEEE80211_NUM_ACS]; 1430 u32 aql_txq_limit_high[IEEE80211_NUM_ACS]; 1431 u32 aql_threshold; 1432 atomic_t aql_total_pending_airtime; 1433 atomic_t aql_ac_pending_airtime[IEEE80211_NUM_ACS]; 1434 1435 const struct ieee80211_ops *ops; 1436 1437 /* 1438 * private workqueue to mac80211. mac80211 makes this accessible 1439 * via ieee80211_queue_work() 1440 */ 1441 struct workqueue_struct *workqueue; 1442 1443 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES]; 1444 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS]; 1445 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */ 1446 spinlock_t queue_stop_reason_lock; 1447 1448 int open_count; 1449 int monitors, virt_monitors, tx_mntrs; 1450 /* number of interfaces with corresponding FIF_ flags */ 1451 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll, 1452 fif_probe_req; 1453 bool probe_req_reg; 1454 bool rx_mcast_action_reg; 1455 unsigned int filter_flags; /* FIF_* */ 1456 1457 struct cfg80211_chan_def dflt_chandef; 1458 bool emulate_chanctx; 1459 1460 /* protects the aggregated multicast list and filter calls */ 1461 spinlock_t filter_lock; 1462 1463 /* used for uploading changed mc list */ 1464 struct wiphy_work reconfig_filter; 1465 1466 /* aggregated multicast list */ 1467 struct netdev_hw_addr_list mc_list; 1468 1469 bool tim_in_locked_section; /* see ieee80211_beacon_get() */ 1470 1471 /* 1472 * suspended is true if we finished all the suspend _and_ we have 1473 * not yet come up from resume. This is to be used by mac80211 1474 * to ensure driver sanity during suspend and mac80211's own 1475 * sanity. It can eventually be used for WoW as well. 1476 */ 1477 bool suspended; 1478 1479 /* suspending is true during the whole suspend process */ 1480 bool suspending; 1481 1482 /* 1483 * Resuming is true while suspended, but when we're reprogramming the 1484 * hardware -- at that time it's allowed to use ieee80211_queue_work() 1485 * again even though some other parts of the stack are still suspended 1486 * and we still drop received frames to avoid waking the stack. 1487 */ 1488 bool resuming; 1489 1490 /* 1491 * quiescing is true during the suspend process _only_ to 1492 * ease timer cancelling etc. 1493 */ 1494 bool quiescing; 1495 1496 /* device is started */ 1497 bool started; 1498 1499 /* device is during a HW reconfig */ 1500 bool in_reconfig; 1501 1502 /* reconfiguration failed ... suppress some warnings etc. */ 1503 bool reconfig_failure; 1504 1505 /* wowlan is enabled -- don't reconfig on resume */ 1506 bool wowlan; 1507 1508 struct wiphy_work radar_detected_work; 1509 1510 /* number of RX chains the hardware has */ 1511 u8 rx_chains; 1512 1513 /* bitmap of which sbands were copied */ 1514 u8 sband_allocated; 1515 1516 int tx_headroom; /* required headroom for hardware/radiotap */ 1517 1518 /* Tasklet and skb queue to process calls from IRQ mode. All frames 1519 * added to skb_queue will be processed, but frames in 1520 * skb_queue_unreliable may be dropped if the total length of these 1521 * queues increases over the limit. */ 1522 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128 1523 struct tasklet_struct tasklet; 1524 struct sk_buff_head skb_queue; 1525 struct sk_buff_head skb_queue_unreliable; 1526 1527 spinlock_t rx_path_lock; 1528 1529 /* Station data */ 1530 /* 1531 * The list, hash table and counter are protected 1532 * by the wiphy mutex, reads are done with RCU. 1533 */ 1534 spinlock_t tim_lock; 1535 unsigned long num_sta; 1536 struct list_head sta_list; 1537 struct rhltable sta_hash; 1538 struct rhltable link_sta_hash; 1539 struct timer_list sta_cleanup; 1540 int sta_generation; 1541 1542 struct sk_buff_head pending[IEEE80211_MAX_QUEUES]; 1543 struct tasklet_struct tx_pending_tasklet; 1544 struct tasklet_struct wake_txqs_tasklet; 1545 1546 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES]; 1547 1548 /* number of interfaces with allmulti RX */ 1549 atomic_t iff_allmultis; 1550 1551 struct rate_control_ref *rate_ctrl; 1552 1553 struct arc4_ctx wep_tx_ctx; 1554 struct arc4_ctx wep_rx_ctx; 1555 u32 wep_iv; 1556 1557 /* see iface.c */ 1558 struct list_head interfaces; 1559 struct list_head mon_list; /* only that are IFF_UP */ 1560 struct mutex iflist_mtx; 1561 1562 /* Scanning and BSS list */ 1563 unsigned long scanning; 1564 struct cfg80211_ssid scan_ssid; 1565 struct cfg80211_scan_request *int_scan_req; 1566 struct cfg80211_scan_request __rcu *scan_req; 1567 struct ieee80211_scan_request *hw_scan_req; 1568 struct cfg80211_chan_def scan_chandef; 1569 enum nl80211_band hw_scan_band; 1570 int scan_channel_idx; 1571 int scan_ies_len; 1572 int hw_scan_ies_bufsize; 1573 struct cfg80211_scan_info scan_info; 1574 1575 struct wiphy_work sched_scan_stopped_work; 1576 struct ieee80211_sub_if_data __rcu *sched_scan_sdata; 1577 struct cfg80211_sched_scan_request __rcu *sched_scan_req; 1578 u8 scan_addr[ETH_ALEN]; 1579 1580 unsigned long leave_oper_channel_time; 1581 enum mac80211_scan_state next_scan_state; 1582 struct wiphy_delayed_work scan_work; 1583 struct ieee80211_sub_if_data __rcu *scan_sdata; 1584 1585 /* Temporary remain-on-channel for off-channel operations */ 1586 struct ieee80211_channel *tmp_channel; 1587 1588 /* channel contexts */ 1589 struct list_head chanctx_list; 1590 1591 #ifdef CONFIG_MAC80211_LEDS 1592 struct led_trigger tx_led, rx_led, assoc_led, radio_led; 1593 struct led_trigger tpt_led; 1594 atomic_t tx_led_active, rx_led_active, assoc_led_active; 1595 atomic_t radio_led_active, tpt_led_active; 1596 struct tpt_led_trigger *tpt_led_trigger; 1597 #endif 1598 1599 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS 1600 /* SNMP counters */ 1601 /* dot11CountersTable */ 1602 u32 dot11TransmittedFragmentCount; 1603 u32 dot11MulticastTransmittedFrameCount; 1604 u32 dot11FailedCount; 1605 u32 dot11RetryCount; 1606 u32 dot11MultipleRetryCount; 1607 u32 dot11FrameDuplicateCount; 1608 u32 dot11ReceivedFragmentCount; 1609 u32 dot11MulticastReceivedFrameCount; 1610 u32 dot11TransmittedFrameCount; 1611 1612 /* TX/RX handler statistics */ 1613 unsigned int tx_handlers_queued; 1614 unsigned int tx_handlers_drop_wep; 1615 unsigned int tx_handlers_drop_not_assoc; 1616 unsigned int tx_handlers_drop_unauth_port; 1617 unsigned int rx_handlers_drop; 1618 unsigned int rx_handlers_queued; 1619 unsigned int rx_handlers_drop_nullfunc; 1620 unsigned int rx_handlers_drop_defrag; 1621 unsigned int tx_expand_skb_head; 1622 unsigned int tx_expand_skb_head_cloned; 1623 unsigned int rx_expand_skb_head_defrag; 1624 unsigned int rx_handlers_fragments; 1625 unsigned int tx_status_drop; 1626 #define I802_DEBUG_INC(c) (c)++ 1627 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */ 1628 #define I802_DEBUG_INC(c) do { } while (0) 1629 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */ 1630 1631 1632 int total_ps_buffered; /* total number of all buffered unicast and 1633 * multicast packets for power saving stations 1634 */ 1635 1636 bool pspolling; 1637 /* 1638 * PS can only be enabled when we have exactly one managed 1639 * interface (and monitors) in PS, this then points there. 1640 */ 1641 struct ieee80211_sub_if_data *ps_sdata; 1642 struct wiphy_work dynamic_ps_enable_work; 1643 struct wiphy_work dynamic_ps_disable_work; 1644 struct timer_list dynamic_ps_timer; 1645 struct notifier_block ifa_notifier; 1646 struct notifier_block ifa6_notifier; 1647 1648 /* 1649 * The dynamic ps timeout configured from user space via WEXT - 1650 * this will override whatever chosen by mac80211 internally. 1651 */ 1652 int dynamic_ps_forced_timeout; 1653 1654 int user_power_level; /* in dBm, for all interfaces */ 1655 1656 struct work_struct restart_work; 1657 1658 #ifdef CONFIG_MAC80211_DEBUGFS 1659 struct local_debugfsdentries { 1660 struct dentry *rcdir; 1661 struct dentry *keys; 1662 } debugfs; 1663 bool force_tx_status; 1664 #endif 1665 1666 /* 1667 * Remain-on-channel support 1668 */ 1669 struct wiphy_delayed_work roc_work; 1670 struct list_head roc_list; 1671 struct wiphy_work hw_roc_start, hw_roc_done; 1672 unsigned long hw_roc_start_time; 1673 u64 roc_cookie_counter; 1674 1675 struct idr ack_status_frames; 1676 spinlock_t ack_status_lock; 1677 1678 /* virtual monitor interface */ 1679 struct ieee80211_sub_if_data __rcu *monitor_sdata; 1680 struct ieee80211_chan_req monitor_chanreq; 1681 1682 /* extended capabilities provided by mac80211 */ 1683 u8 ext_capa[8]; 1684 1685 bool wbrf_supported; 1686 }; 1687 1688 static inline struct ieee80211_sub_if_data * 1689 IEEE80211_DEV_TO_SUB_IF(const struct net_device *dev) 1690 { 1691 return netdev_priv(dev); 1692 } 1693 1694 static inline struct ieee80211_sub_if_data * 1695 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev) 1696 { 1697 return container_of(wdev, struct ieee80211_sub_if_data, wdev); 1698 } 1699 1700 static inline struct ieee80211_supported_band * 1701 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata) 1702 { 1703 struct ieee80211_local *local = sdata->local; 1704 struct ieee80211_chanctx_conf *chanctx_conf; 1705 enum nl80211_band band; 1706 1707 WARN_ON(ieee80211_vif_is_mld(&sdata->vif)); 1708 1709 rcu_read_lock(); 1710 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 1711 1712 if (!chanctx_conf) { 1713 rcu_read_unlock(); 1714 return NULL; 1715 } 1716 1717 band = chanctx_conf->def.chan->band; 1718 rcu_read_unlock(); 1719 1720 return local->hw.wiphy->bands[band]; 1721 } 1722 1723 static inline struct ieee80211_supported_band * 1724 ieee80211_get_link_sband(struct ieee80211_link_data *link) 1725 { 1726 struct ieee80211_local *local = link->sdata->local; 1727 struct ieee80211_chanctx_conf *chanctx_conf; 1728 enum nl80211_band band; 1729 1730 rcu_read_lock(); 1731 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 1732 if (!chanctx_conf) { 1733 rcu_read_unlock(); 1734 return NULL; 1735 } 1736 1737 band = chanctx_conf->def.chan->band; 1738 rcu_read_unlock(); 1739 1740 return local->hw.wiphy->bands[band]; 1741 } 1742 1743 /* this struct holds the value parsing from channel switch IE */ 1744 struct ieee80211_csa_ie { 1745 struct ieee80211_chan_req chanreq; 1746 u8 mode; 1747 u8 count; 1748 u8 ttl; 1749 u16 pre_value; 1750 u16 reason_code; 1751 u32 max_switch_time; 1752 }; 1753 1754 enum ieee80211_elems_parse_error { 1755 IEEE80211_PARSE_ERR_INVALID_END = BIT(0), 1756 IEEE80211_PARSE_ERR_DUP_ELEM = BIT(1), 1757 IEEE80211_PARSE_ERR_BAD_ELEM_SIZE = BIT(2), 1758 IEEE80211_PARSE_ERR_UNEXPECTED_ELEM = BIT(3), 1759 IEEE80211_PARSE_ERR_DUP_NEST_ML_BASIC = BIT(4), 1760 }; 1761 1762 /* Parsed Information Elements */ 1763 struct ieee802_11_elems { 1764 const u8 *ie_start; 1765 size_t total_len; 1766 u32 crc; 1767 1768 /* pointers to IEs */ 1769 const struct ieee80211_tdls_lnkie *lnk_id; 1770 const struct ieee80211_ch_switch_timing *ch_sw_timing; 1771 const u8 *ext_capab; 1772 const u8 *ssid; 1773 const u8 *supp_rates; 1774 const u8 *ds_params; 1775 const struct ieee80211_tim_ie *tim; 1776 const u8 *rsn; 1777 const u8 *rsnx; 1778 const u8 *erp_info; 1779 const u8 *ext_supp_rates; 1780 const u8 *wmm_info; 1781 const u8 *wmm_param; 1782 const struct ieee80211_ht_cap *ht_cap_elem; 1783 const struct ieee80211_ht_operation *ht_operation; 1784 const struct ieee80211_vht_cap *vht_cap_elem; 1785 const struct ieee80211_vht_operation *vht_operation; 1786 const struct ieee80211_meshconf_ie *mesh_config; 1787 const u8 *he_cap; 1788 const struct ieee80211_he_operation *he_operation; 1789 const struct ieee80211_he_spr *he_spr; 1790 const struct ieee80211_mu_edca_param_set *mu_edca_param_set; 1791 const struct ieee80211_he_6ghz_capa *he_6ghz_capa; 1792 const u8 *uora_element; 1793 const u8 *mesh_id; 1794 const u8 *peering; 1795 const __le16 *awake_window; 1796 const u8 *preq; 1797 const u8 *prep; 1798 const u8 *perr; 1799 const struct ieee80211_rann_ie *rann; 1800 const struct ieee80211_channel_sw_ie *ch_switch_ie; 1801 const struct ieee80211_ext_chansw_ie *ext_chansw_ie; 1802 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie; 1803 const u8 *max_channel_switch_time; 1804 const u8 *country_elem; 1805 const u8 *pwr_constr_elem; 1806 const u8 *cisco_dtpc_elem; 1807 const struct ieee80211_timeout_interval_ie *timeout_int; 1808 const u8 *opmode_notif; 1809 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs; 1810 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie; 1811 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie; 1812 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie; 1813 const struct ieee80211_bssid_index *bssid_index; 1814 u8 max_bssid_indicator; 1815 u8 dtim_count; 1816 u8 dtim_period; 1817 const struct ieee80211_addba_ext_ie *addba_ext_ie; 1818 const struct ieee80211_s1g_cap *s1g_capab; 1819 const struct ieee80211_s1g_oper_ie *s1g_oper; 1820 const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat; 1821 const struct ieee80211_aid_response_ie *aid_resp; 1822 const struct ieee80211_eht_cap_elem *eht_cap; 1823 const struct ieee80211_eht_operation *eht_operation; 1824 const struct ieee80211_multi_link_elem *ml_basic; 1825 const struct ieee80211_multi_link_elem *ml_reconf; 1826 const struct ieee80211_multi_link_elem *ml_epcs; 1827 const struct ieee80211_bandwidth_indication *bandwidth_indication; 1828 const struct ieee80211_ttlm_elem *ttlm[IEEE80211_TTLM_MAX_CNT]; 1829 1830 /* not the order in the psd values is per element, not per chandef */ 1831 struct ieee80211_parsed_tpe tpe; 1832 struct ieee80211_parsed_tpe csa_tpe; 1833 1834 /* length of them, respectively */ 1835 u8 ext_capab_len; 1836 u8 ssid_len; 1837 u8 supp_rates_len; 1838 u8 tim_len; 1839 u8 rsn_len; 1840 u8 rsnx_len; 1841 u8 ext_supp_rates_len; 1842 u8 wmm_info_len; 1843 u8 wmm_param_len; 1844 u8 he_cap_len; 1845 u8 mesh_id_len; 1846 u8 peering_len; 1847 u8 preq_len; 1848 u8 prep_len; 1849 u8 perr_len; 1850 u8 country_elem_len; 1851 u8 bssid_index_len; 1852 u8 eht_cap_len; 1853 1854 /* mult-link element can be de-fragmented and thus u8 is not sufficient */ 1855 size_t ml_basic_len; 1856 size_t ml_reconf_len; 1857 size_t ml_epcs_len; 1858 1859 u8 ttlm_num; 1860 1861 /* 1862 * store the per station profile pointer and length in case that the 1863 * parsing also handled Multi-Link element parsing for a specific link 1864 * ID. 1865 */ 1866 struct ieee80211_mle_per_sta_profile *prof; 1867 size_t sta_prof_len; 1868 1869 /* whether/which parse error occurred while retrieving these elements */ 1870 u8 parse_error; 1871 }; 1872 1873 static inline struct ieee80211_local *hw_to_local( 1874 struct ieee80211_hw *hw) 1875 { 1876 return container_of(hw, struct ieee80211_local, hw); 1877 } 1878 1879 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq) 1880 { 1881 return container_of(txq, struct txq_info, txq); 1882 } 1883 1884 static inline bool txq_has_queue(struct ieee80211_txq *txq) 1885 { 1886 struct txq_info *txqi = to_txq_info(txq); 1887 1888 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets); 1889 } 1890 1891 static inline bool 1892 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status) 1893 { 1894 return status->flag & RX_FLAG_MACTIME; 1895 } 1896 1897 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata); 1898 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata); 1899 1900 void ieee80211_vif_block_queues_csa(struct ieee80211_sub_if_data *sdata); 1901 void ieee80211_vif_unblock_queues_csa(struct ieee80211_sub_if_data *sdata); 1902 1903 /* This function returns the number of multicast stations connected to this 1904 * interface. It returns -1 if that number is not tracked, that is for netdevs 1905 * not in AP or AP_VLAN mode or when using 4addr. 1906 */ 1907 static inline int 1908 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata) 1909 { 1910 if (sdata->vif.type == NL80211_IFTYPE_AP) 1911 return atomic_read(&sdata->u.ap.num_mcast_sta); 1912 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta) 1913 return atomic_read(&sdata->u.vlan.num_mcast_sta); 1914 return -1; 1915 } 1916 1917 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, 1918 struct ieee80211_rx_status *status, 1919 unsigned int mpdu_len, 1920 unsigned int mpdu_offset); 1921 int ieee80211_hw_config(struct ieee80211_local *local, int radio_idx, 1922 u32 changed); 1923 int ieee80211_hw_conf_chan(struct ieee80211_local *local); 1924 void ieee80211_hw_conf_init(struct ieee80211_local *local); 1925 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); 1926 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, 1927 u64 changed); 1928 void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata, 1929 u64 changed); 1930 void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata, 1931 struct ieee80211_link_data *link, 1932 u64 changed); 1933 void ieee80211_configure_filter(struct ieee80211_local *local); 1934 u64 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata); 1935 1936 void ieee80211_handle_queued_frames(struct ieee80211_local *local); 1937 1938 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local); 1939 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 1940 u64 *cookie, gfp_t gfp); 1941 1942 void ieee80211_check_fast_rx(struct sta_info *sta); 1943 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata); 1944 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata); 1945 void ieee80211_clear_fast_rx(struct sta_info *sta); 1946 1947 bool ieee80211_is_our_addr(struct ieee80211_sub_if_data *sdata, 1948 const u8 *addr, int *out_link_id); 1949 1950 /* STA code */ 1951 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata); 1952 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, 1953 struct cfg80211_auth_request *req); 1954 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, 1955 struct cfg80211_assoc_request *req); 1956 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, 1957 struct cfg80211_deauth_request *req); 1958 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, 1959 struct cfg80211_disassoc_request *req); 1960 void ieee80211_send_pspoll(struct ieee80211_local *local, 1961 struct ieee80211_sub_if_data *sdata); 1962 void ieee80211_recalc_ps(struct ieee80211_local *local); 1963 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata); 1964 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata); 1965 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 1966 struct sk_buff *skb); 1967 void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata, 1968 struct sk_buff *skb); 1969 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata); 1970 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata); 1971 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata); 1972 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata, 1973 __le16 fc, bool acked); 1974 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata); 1975 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata); 1976 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata); 1977 void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, 1978 u8 reason, bool tx); 1979 void ieee80211_mgd_setup_link(struct ieee80211_link_data *link); 1980 void ieee80211_mgd_stop_link(struct ieee80211_link_data *link); 1981 void ieee80211_mgd_set_link_qos_params(struct ieee80211_link_data *link); 1982 1983 /* IBSS code */ 1984 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local); 1985 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata); 1986 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata, 1987 const u8 *bssid, const u8 *addr, u32 supp_rates); 1988 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, 1989 struct cfg80211_ibss_params *params); 1990 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata); 1991 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata); 1992 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 1993 struct sk_buff *skb); 1994 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata, 1995 struct cfg80211_csa_settings *csa_settings, 1996 u64 *changed); 1997 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata, 1998 u64 *changed); 1999 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata); 2000 2001 /* OCB code */ 2002 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata); 2003 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata, 2004 const u8 *bssid, const u8 *addr, u32 supp_rates); 2005 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata); 2006 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata, 2007 struct ocb_setup *setup); 2008 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata); 2009 2010 /* mesh code */ 2011 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata); 2012 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 2013 struct sk_buff *skb); 2014 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata, 2015 struct cfg80211_csa_settings *csa_settings, 2016 u64 *changed); 2017 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata, 2018 u64 *changed); 2019 2020 /* scan/BSS handling */ 2021 void ieee80211_scan_work(struct wiphy *wiphy, struct wiphy_work *work); 2022 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata, 2023 const u8 *ssid, u8 ssid_len, 2024 struct ieee80211_channel **channels, 2025 unsigned int n_channels); 2026 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, 2027 struct cfg80211_scan_request *req); 2028 void ieee80211_scan_cancel(struct ieee80211_local *local); 2029 void ieee80211_run_deferred_scan(struct ieee80211_local *local); 2030 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb); 2031 2032 void ieee80211_inform_bss(struct wiphy *wiphy, struct cfg80211_bss *bss, 2033 const struct cfg80211_bss_ies *ies, void *data); 2034 2035 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local); 2036 struct ieee80211_bss * 2037 ieee80211_bss_info_update(struct ieee80211_local *local, 2038 struct ieee80211_rx_status *rx_status, 2039 struct ieee80211_mgmt *mgmt, 2040 size_t len, 2041 struct ieee80211_channel *channel); 2042 void ieee80211_rx_bss_put(struct ieee80211_local *local, 2043 struct ieee80211_bss *bss); 2044 2045 /* scheduled scan handling */ 2046 int 2047 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, 2048 struct cfg80211_sched_scan_request *req); 2049 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, 2050 struct cfg80211_sched_scan_request *req); 2051 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local); 2052 void ieee80211_sched_scan_end(struct ieee80211_local *local); 2053 void ieee80211_sched_scan_stopped_work(struct wiphy *wiphy, 2054 struct wiphy_work *work); 2055 2056 /* off-channel/mgmt-tx */ 2057 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local); 2058 void ieee80211_offchannel_return(struct ieee80211_local *local); 2059 void ieee80211_roc_setup(struct ieee80211_local *local); 2060 void ieee80211_start_next_roc(struct ieee80211_local *local); 2061 void ieee80211_reconfig_roc(struct ieee80211_local *local); 2062 void ieee80211_roc_purge(struct ieee80211_local *local, 2063 struct ieee80211_sub_if_data *sdata); 2064 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev, 2065 struct ieee80211_channel *chan, 2066 unsigned int duration, u64 *cookie); 2067 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, 2068 struct wireless_dev *wdev, u64 cookie); 2069 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 2070 struct cfg80211_mgmt_tx_params *params, u64 *cookie); 2071 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, 2072 struct wireless_dev *wdev, u64 cookie); 2073 2074 /* channel switch handling */ 2075 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work); 2076 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 2077 struct cfg80211_csa_settings *params); 2078 2079 /* color change handling */ 2080 void ieee80211_color_change_finalize_work(struct wiphy *wiphy, 2081 struct wiphy_work *work); 2082 void ieee80211_color_collision_detection_work(struct wiphy *wiphy, 2083 struct wiphy_work *work); 2084 2085 /* interface handling */ 2086 #define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \ 2087 NETIF_F_HW_CSUM | NETIF_F_SG | \ 2088 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE | \ 2089 NETIF_F_HW_TC) 2090 #define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM) 2091 #define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \ 2092 MAC80211_SUPPORTED_FEATURES_RX) 2093 2094 int ieee80211_iface_init(void); 2095 void ieee80211_iface_exit(void); 2096 int ieee80211_if_add(struct ieee80211_local *local, const char *name, 2097 unsigned char name_assign_type, 2098 struct wireless_dev **new_wdev, enum nl80211_iftype type, 2099 struct vif_params *params); 2100 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, 2101 enum nl80211_iftype type); 2102 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata); 2103 void ieee80211_remove_interfaces(struct ieee80211_local *local); 2104 u32 ieee80211_idle_off(struct ieee80211_local *local); 2105 void ieee80211_recalc_idle(struct ieee80211_local *local); 2106 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata, 2107 const int offset); 2108 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up); 2109 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata); 2110 int ieee80211_add_virtual_monitor(struct ieee80211_local *local); 2111 void ieee80211_del_virtual_monitor(struct ieee80211_local *local); 2112 2113 bool __ieee80211_recalc_txpower(struct ieee80211_link_data *link); 2114 void ieee80211_recalc_txpower(struct ieee80211_link_data *link, 2115 bool update_bss); 2116 void ieee80211_recalc_offload(struct ieee80211_local *local); 2117 2118 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata) 2119 { 2120 return test_bit(SDATA_STATE_RUNNING, &sdata->state); 2121 } 2122 2123 /* link handling */ 2124 void ieee80211_link_setup(struct ieee80211_link_data *link); 2125 void ieee80211_link_init(struct ieee80211_sub_if_data *sdata, 2126 int link_id, 2127 struct ieee80211_link_data *link, 2128 struct ieee80211_bss_conf *link_conf); 2129 void ieee80211_link_stop(struct ieee80211_link_data *link); 2130 int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata, 2131 u16 new_links, u16 dormant_links); 2132 static inline void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata) 2133 { 2134 ieee80211_vif_set_links(sdata, 0, 0); 2135 } 2136 2137 void ieee80211_apvlan_link_setup(struct ieee80211_sub_if_data *sdata); 2138 void ieee80211_apvlan_link_clear(struct ieee80211_sub_if_data *sdata); 2139 2140 /* tx handling */ 2141 void ieee80211_clear_tx_pending(struct ieee80211_local *local); 2142 void ieee80211_tx_pending(struct tasklet_struct *t); 2143 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb, 2144 struct net_device *dev); 2145 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, 2146 struct net_device *dev); 2147 netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb, 2148 struct net_device *dev); 2149 void __ieee80211_subif_start_xmit(struct sk_buff *skb, 2150 struct net_device *dev, 2151 u32 info_flags, 2152 u32 ctrl_flags, 2153 u64 *cookie); 2154 struct sk_buff * 2155 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata, 2156 struct sk_buff *skb, u32 info_flags); 2157 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb, 2158 int retry_count, struct ieee80211_tx_status *status); 2159 2160 void ieee80211_check_fast_xmit(struct sta_info *sta); 2161 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local); 2162 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata); 2163 void ieee80211_clear_fast_xmit(struct sta_info *sta); 2164 int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev, 2165 const u8 *buf, size_t len, 2166 const u8 *dest, __be16 proto, bool unencrypted, 2167 int link_id, u64 *cookie); 2168 int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev, 2169 const u8 *buf, size_t len); 2170 void __ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata, 2171 struct sta_info *sta, 2172 struct ieee80211_fast_tx *fast_tx, 2173 struct sk_buff *skb, bool ampdu, 2174 const u8 *da, const u8 *sa); 2175 void ieee80211_aggr_check(struct ieee80211_sub_if_data *sdata, 2176 struct sta_info *sta, struct sk_buff *skb); 2177 2178 /* HT */ 2179 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, 2180 struct ieee80211_sta_ht_cap *ht_cap); 2181 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, 2182 struct ieee80211_supported_band *sband, 2183 const struct ieee80211_ht_cap *ht_cap_ie, 2184 struct link_sta_info *link_sta); 2185 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, 2186 const u8 *da, u16 tid, 2187 u16 initiator, u16 reason_code); 2188 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata, 2189 enum ieee80211_smps_mode smps, const u8 *da, 2190 const u8 *bssid, int link_id); 2191 void ieee80211_add_addbaext(struct sk_buff *skb, 2192 const u8 req_addba_ext_data, 2193 u16 buf_size); 2194 u8 ieee80211_retrieve_addba_ext_data(struct sta_info *sta, 2195 const void *elem_data, ssize_t elem_len, 2196 u16 *buf_size); 2197 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, 2198 u16 initiator, u16 reason, bool stop); 2199 void __ieee80211_start_rx_ba_session(struct sta_info *sta, 2200 u8 dialog_token, u16 timeout, 2201 u16 start_seq_num, u16 ba_policy, u16 tid, 2202 u16 buf_size, bool tx, bool auto_seq, 2203 const u8 addba_ext_data); 2204 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, 2205 enum ieee80211_agg_stop_reason reason); 2206 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, 2207 struct sta_info *sta, 2208 struct ieee80211_mgmt *mgmt, size_t len); 2209 void ieee80211_process_addba_resp(struct ieee80211_local *local, 2210 struct sta_info *sta, 2211 struct ieee80211_mgmt *mgmt, 2212 size_t len); 2213 void ieee80211_process_addba_request(struct ieee80211_local *local, 2214 struct sta_info *sta, 2215 struct ieee80211_mgmt *mgmt, 2216 size_t len); 2217 2218 static inline struct ieee80211_mgmt * 2219 ieee80211_mgmt_ba(struct sk_buff *skb, const u8 *da, 2220 struct ieee80211_sub_if_data *sdata) 2221 { 2222 struct ieee80211_mgmt *mgmt = skb_put_zero(skb, 24); 2223 2224 ether_addr_copy(mgmt->da, da); 2225 ether_addr_copy(mgmt->sa, sdata->vif.addr); 2226 2227 if (sdata->vif.type == NL80211_IFTYPE_AP || 2228 sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 2229 sdata->vif.type == NL80211_IFTYPE_MESH_POINT) 2230 ether_addr_copy(mgmt->bssid, sdata->vif.addr); 2231 else if (sdata->vif.type == NL80211_IFTYPE_STATION) 2232 ether_addr_copy(mgmt->bssid, sdata->vif.cfg.ap_addr); 2233 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) 2234 ether_addr_copy(mgmt->bssid, sdata->u.ibss.bssid); 2235 2236 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 2237 IEEE80211_STYPE_ACTION); 2238 return mgmt; 2239 } 2240 2241 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, 2242 enum ieee80211_agg_stop_reason reason); 2243 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid, 2244 struct tid_ampdu_tx *tid_tx); 2245 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid, 2246 struct tid_ampdu_tx *tid_tx); 2247 void ieee80211_ba_session_work(struct wiphy *wiphy, struct wiphy_work *work); 2248 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid); 2249 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid); 2250 2251 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs); 2252 enum nl80211_smps_mode 2253 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps); 2254 2255 void ieee80211_ht_handle_chanwidth_notif(struct ieee80211_local *local, 2256 struct ieee80211_sub_if_data *sdata, 2257 struct sta_info *sta, 2258 struct link_sta_info *link_sta, 2259 u8 chanwidth, enum nl80211_band band); 2260 2261 /* VHT */ 2262 void 2263 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, 2264 struct ieee80211_supported_band *sband, 2265 const struct ieee80211_vht_cap *vht_cap_ie, 2266 const struct ieee80211_vht_cap *vht_cap_ie2, 2267 struct link_sta_info *link_sta); 2268 enum ieee80211_sta_rx_bandwidth 2269 _ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta, 2270 struct cfg80211_chan_def *chandef); 2271 static inline enum ieee80211_sta_rx_bandwidth 2272 ieee80211_sta_cap_rx_bw(struct link_sta_info *link_sta) 2273 { 2274 return _ieee80211_sta_cap_rx_bw(link_sta, NULL); 2275 } 2276 enum ieee80211_sta_rx_bandwidth 2277 _ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta, 2278 struct cfg80211_chan_def *chandef); 2279 static inline enum ieee80211_sta_rx_bandwidth 2280 ieee80211_sta_cur_vht_bw(struct link_sta_info *link_sta) 2281 { 2282 return _ieee80211_sta_cur_vht_bw(link_sta, NULL); 2283 } 2284 void ieee80211_sta_init_nss(struct link_sta_info *link_sta); 2285 enum nl80211_chan_width 2286 ieee80211_sta_cap_chan_bw(struct link_sta_info *link_sta); 2287 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata, 2288 struct ieee80211_link_data *link, 2289 struct ieee80211_mgmt *mgmt); 2290 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, 2291 struct link_sta_info *sta, 2292 u8 opmode, enum nl80211_band band); 2293 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, 2294 struct link_sta_info *sta, 2295 u8 opmode, enum nl80211_band band); 2296 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata, 2297 struct ieee80211_sta_vht_cap *vht_cap); 2298 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap, 2299 u16 vht_mask[NL80211_VHT_NSS_MAX]); 2300 enum nl80211_chan_width 2301 ieee80211_sta_rx_bw_to_chan_width(struct link_sta_info *sta); 2302 2303 /* HE */ 2304 void 2305 ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata, 2306 struct ieee80211_supported_band *sband, 2307 const u8 *he_cap_ie, u8 he_cap_len, 2308 const struct ieee80211_he_6ghz_capa *he_6ghz_capa, 2309 struct link_sta_info *link_sta); 2310 void 2311 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif, 2312 const struct ieee80211_he_spr *he_spr_ie_elem); 2313 2314 void 2315 ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif, 2316 const struct ieee80211_he_operation *he_op_ie_elem); 2317 2318 /* S1G */ 2319 void ieee80211_s1g_sta_rate_init(struct sta_info *sta); 2320 bool ieee80211_s1g_is_twt_setup(struct sk_buff *skb); 2321 void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata, 2322 struct sk_buff *skb); 2323 void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata, 2324 struct sk_buff *skb); 2325 void ieee80211_s1g_cap_to_sta_s1g_cap(struct ieee80211_sub_if_data *sdata, 2326 const struct ieee80211_s1g_cap *s1g_cap_ie, 2327 struct link_sta_info *link_sta); 2328 2329 /* Spectrum management */ 2330 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, 2331 struct ieee80211_mgmt *mgmt, 2332 size_t len); 2333 /** 2334 * ieee80211_parse_ch_switch_ie - parses channel switch IEs 2335 * @sdata: the sdata of the interface which has received the frame 2336 * @elems: parsed 802.11 elements received with the frame 2337 * @current_band: indicates the current band 2338 * @vht_cap_info: VHT capabilities of the transmitter 2339 * @conn: contains information about own capabilities and restrictions 2340 * to decide which channel switch announcements can be accepted 2341 * @bssid: the currently connected bssid (for reporting) 2342 * @unprot_action: whether the frame was an unprotected frame or not, 2343 * used for reporting 2344 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl. 2345 * All of them will be filled with if success only. 2346 * Return: 0 on success, <0 on error and >0 if there is nothing to parse. 2347 */ 2348 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata, 2349 struct ieee802_11_elems *elems, 2350 enum nl80211_band current_band, 2351 u32 vht_cap_info, 2352 struct ieee80211_conn_settings *conn, 2353 u8 *bssid, bool unprot_action, 2354 struct ieee80211_csa_ie *csa_ie); 2355 2356 /* Suspend/resume and hw reconfiguration */ 2357 int ieee80211_reconfig(struct ieee80211_local *local); 2358 void ieee80211_stop_device(struct ieee80211_local *local, bool suspend); 2359 2360 int __ieee80211_suspend(struct ieee80211_hw *hw, 2361 struct cfg80211_wowlan *wowlan); 2362 2363 static inline int __ieee80211_resume(struct ieee80211_hw *hw) 2364 { 2365 struct ieee80211_local *local = hw_to_local(hw); 2366 2367 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) && 2368 !test_bit(SCAN_COMPLETED, &local->scanning), 2369 "%s: resume with hardware scan still in progress\n", 2370 wiphy_name(hw->wiphy)); 2371 2372 return ieee80211_reconfig(hw_to_local(hw)); 2373 } 2374 2375 /* utility functions/constants */ 2376 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */ 2377 const char *ieee80211_conn_mode_str(enum ieee80211_conn_mode mode); 2378 enum ieee80211_conn_bw_limit 2379 ieee80211_min_bw_limit_from_chandef(struct cfg80211_chan_def *chandef); 2380 int ieee80211_frame_duration(enum nl80211_band band, size_t len, 2381 int rate, int erp, int short_preamble); 2382 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, 2383 struct ieee80211_tx_queue_params *qparam, 2384 int ac); 2385 void ieee80211_clear_tpe(struct ieee80211_parsed_tpe *tpe); 2386 void ieee80211_set_wmm_default(struct ieee80211_link_data *link, 2387 bool bss_notify, bool enable_qos); 2388 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, 2389 struct sta_info *sta, struct sk_buff *skb); 2390 2391 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, 2392 struct sk_buff *skb, int tid, int link_id, 2393 enum nl80211_band band); 2394 2395 /* sta_out needs to be checked for ERR_PTR() before using */ 2396 int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata, 2397 struct sk_buff *skb, 2398 struct sta_info **sta_out); 2399 2400 static inline void 2401 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, 2402 struct sk_buff *skb, int tid, 2403 enum nl80211_band band) 2404 { 2405 rcu_read_lock(); 2406 __ieee80211_tx_skb_tid_band(sdata, skb, tid, -1, band); 2407 rcu_read_unlock(); 2408 } 2409 2410 void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata, 2411 struct sk_buff *skb, int tid, int link_id); 2412 2413 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, 2414 struct sk_buff *skb) 2415 { 2416 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */ 2417 ieee80211_tx_skb_tid(sdata, skb, 7, -1); 2418 } 2419 2420 /** 2421 * struct ieee80211_elems_parse_params - element parsing parameters 2422 * @mode: connection mode for parsing 2423 * @start: pointer to the elements 2424 * @len: length of the elements 2425 * @action: %true if the elements came from an action frame 2426 * @filter: bitmap of element IDs to filter out while calculating 2427 * the element CRC 2428 * @crc: CRC starting value 2429 * @bss: the BSS to parse this as, for multi-BSSID cases this can 2430 * represent a non-transmitting BSS in which case the data 2431 * for that non-transmitting BSS is returned 2432 * @link_id: the link ID to parse elements for, if a STA profile 2433 * is present in the multi-link element, or -1 to ignore; 2434 * note that the code currently assumes parsing an association 2435 * (or re-association) response frame if this is given 2436 * @from_ap: frame is received from an AP (currently used only 2437 * for EHT capabilities parsing) 2438 */ 2439 struct ieee80211_elems_parse_params { 2440 enum ieee80211_conn_mode mode; 2441 const u8 *start; 2442 size_t len; 2443 bool action; 2444 u64 filter; 2445 u32 crc; 2446 struct cfg80211_bss *bss; 2447 int link_id; 2448 bool from_ap; 2449 }; 2450 2451 struct ieee802_11_elems * 2452 ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params); 2453 2454 static inline struct ieee802_11_elems * 2455 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, 2456 u64 filter, u32 crc, 2457 struct cfg80211_bss *bss) 2458 { 2459 struct ieee80211_elems_parse_params params = { 2460 .mode = IEEE80211_CONN_MODE_HIGHEST, 2461 .start = start, 2462 .len = len, 2463 .action = action, 2464 .filter = filter, 2465 .crc = crc, 2466 .bss = bss, 2467 .link_id = -1, 2468 }; 2469 2470 return ieee802_11_parse_elems_full(¶ms); 2471 } 2472 2473 static inline struct ieee802_11_elems * 2474 ieee802_11_parse_elems(const u8 *start, size_t len, bool action, 2475 struct cfg80211_bss *bss) 2476 { 2477 return ieee802_11_parse_elems_crc(start, len, action, 0, 0, bss); 2478 } 2479 2480 extern const int ieee802_1d_to_ac[8]; 2481 2482 static inline int ieee80211_ac_from_tid(int tid) 2483 { 2484 return ieee802_1d_to_ac[tid & 7]; 2485 } 2486 2487 void ieee80211_dynamic_ps_enable_work(struct wiphy *wiphy, 2488 struct wiphy_work *work); 2489 void ieee80211_dynamic_ps_disable_work(struct wiphy *wiphy, 2490 struct wiphy_work *work); 2491 void ieee80211_dynamic_ps_timer(struct timer_list *t); 2492 void ieee80211_send_nullfunc(struct ieee80211_local *local, 2493 struct ieee80211_sub_if_data *sdata, 2494 bool powersave); 2495 void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local, 2496 struct ieee80211_sub_if_data *sdata); 2497 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata, 2498 struct ieee80211_hdr *hdr, bool ack, u16 tx_time); 2499 unsigned int 2500 ieee80211_get_vif_queues(struct ieee80211_local *local, 2501 struct ieee80211_sub_if_data *sdata); 2502 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, 2503 unsigned long queues, 2504 enum queue_stop_reason reason, 2505 bool refcounted); 2506 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, 2507 unsigned long queues, 2508 enum queue_stop_reason reason, 2509 bool refcounted); 2510 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, 2511 enum queue_stop_reason reason, 2512 bool refcounted); 2513 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, 2514 enum queue_stop_reason reason, 2515 bool refcounted); 2516 static inline void 2517 ieee80211_stop_vif_queues(struct ieee80211_local *local, 2518 struct ieee80211_sub_if_data *sdata, 2519 enum queue_stop_reason reason) 2520 { 2521 ieee80211_stop_queues_by_reason(&local->hw, 2522 ieee80211_get_vif_queues(local, sdata), 2523 reason, true); 2524 } 2525 2526 static inline void 2527 ieee80211_wake_vif_queues(struct ieee80211_local *local, 2528 struct ieee80211_sub_if_data *sdata, 2529 enum queue_stop_reason reason) 2530 { 2531 ieee80211_wake_queues_by_reason(&local->hw, 2532 ieee80211_get_vif_queues(local, sdata), 2533 reason, true); 2534 } 2535 static inline void 2536 ieee80211_stop_vif_queues_norefcount(struct ieee80211_local *local, 2537 struct ieee80211_sub_if_data *sdata, 2538 enum queue_stop_reason reason) 2539 { 2540 ieee80211_stop_queues_by_reason(&local->hw, 2541 ieee80211_get_vif_queues(local, sdata), 2542 reason, false); 2543 } 2544 static inline void 2545 ieee80211_wake_vif_queues_norefcount(struct ieee80211_local *local, 2546 struct ieee80211_sub_if_data *sdata, 2547 enum queue_stop_reason reason) 2548 { 2549 ieee80211_wake_queues_by_reason(&local->hw, 2550 ieee80211_get_vif_queues(local, sdata), 2551 reason, false); 2552 } 2553 void ieee80211_add_pending_skb(struct ieee80211_local *local, 2554 struct sk_buff *skb); 2555 void ieee80211_add_pending_skbs(struct ieee80211_local *local, 2556 struct sk_buff_head *skbs); 2557 void ieee80211_flush_queues(struct ieee80211_local *local, 2558 struct ieee80211_sub_if_data *sdata, bool drop); 2559 void __ieee80211_flush_queues(struct ieee80211_local *local, 2560 struct ieee80211_sub_if_data *sdata, 2561 unsigned int queues, bool drop); 2562 2563 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local) 2564 { 2565 /* 2566 * It's unsafe to try to do any work during reconfigure flow. 2567 * When the flow ends the work will be requeued. 2568 */ 2569 if (local->in_reconfig) 2570 return false; 2571 2572 /* 2573 * If quiescing is set, we are racing with __ieee80211_suspend. 2574 * __ieee80211_suspend flushes the workers after setting quiescing, 2575 * and we check quiescing / suspended before enqueuing new workers. 2576 * We should abort the worker to avoid the races below. 2577 */ 2578 if (local->quiescing) 2579 return false; 2580 2581 /* 2582 * We might already be suspended if the following scenario occurs: 2583 * __ieee80211_suspend Control path 2584 * 2585 * if (local->quiescing) 2586 * return; 2587 * local->quiescing = true; 2588 * flush_workqueue(); 2589 * queue_work(...); 2590 * local->suspended = true; 2591 * local->quiescing = false; 2592 * worker starts running... 2593 */ 2594 if (local->suspended) 2595 return false; 2596 2597 return true; 2598 } 2599 2600 int ieee80211_txq_setup_flows(struct ieee80211_local *local); 2601 void ieee80211_txq_set_params(struct ieee80211_local *local, int radio_idx); 2602 void ieee80211_txq_teardown_flows(struct ieee80211_local *local); 2603 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata, 2604 struct sta_info *sta, 2605 struct txq_info *txq, int tid); 2606 void ieee80211_txq_purge(struct ieee80211_local *local, 2607 struct txq_info *txqi); 2608 void ieee80211_purge_sta_txqs(struct sta_info *sta); 2609 void ieee80211_txq_remove_vlan(struct ieee80211_local *local, 2610 struct ieee80211_sub_if_data *sdata); 2611 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 2612 struct txq_info *txqi); 2613 void ieee80211_wake_txqs(struct tasklet_struct *t); 2614 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, 2615 u16 transaction, u16 auth_alg, u16 status, 2616 const u8 *extra, size_t extra_len, const u8 *bssid, 2617 const u8 *da, const u8 *key, u8 key_len, u8 key_idx, 2618 u32 tx_flags); 2619 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, 2620 const u8 *da, const u8 *bssid, 2621 u16 stype, u16 reason, 2622 bool send_frame, u8 *frame_buf); 2623 2624 enum { 2625 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0), 2626 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1), 2627 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2), 2628 }; 2629 2630 int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer, 2631 size_t buffer_len, 2632 struct ieee80211_scan_ies *ie_desc, 2633 const u8 *ie, size_t ie_len, 2634 u8 bands_used, u32 *rate_masks, 2635 struct cfg80211_chan_def *chandef, 2636 u32 flags); 2637 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, 2638 const u8 *src, const u8 *dst, 2639 u32 ratemask, 2640 struct ieee80211_channel *chan, 2641 const u8 *ssid, size_t ssid_len, 2642 const u8 *ie, size_t ie_len, 2643 u32 flags); 2644 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, 2645 struct ieee802_11_elems *elems, 2646 enum nl80211_band band, u32 *basic_rates); 2647 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2648 struct ieee80211_link_data *link, 2649 enum ieee80211_smps_mode smps_mode); 2650 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata, 2651 struct ieee80211_link_data *link); 2652 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata, 2653 int link_id); 2654 2655 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset); 2656 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 2657 u16 cap); 2658 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 2659 const struct cfg80211_chan_def *chandef, 2660 u16 prot_mode, bool rifs_mode); 2661 void ieee80211_ie_build_wide_bw_cs(u8 *pos, 2662 const struct cfg80211_chan_def *chandef); 2663 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2664 u32 cap); 2665 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2666 const struct cfg80211_chan_def *chandef); 2667 u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata); 2668 u8 *ieee80211_ie_build_he_oper(u8 *pos, const struct cfg80211_chan_def *chandef); 2669 u8 *ieee80211_ie_build_eht_oper(u8 *pos, const struct cfg80211_chan_def *chandef, 2670 const struct ieee80211_sta_eht_cap *eht_cap); 2671 int ieee80211_parse_bitrates(enum nl80211_chan_width width, 2672 const struct ieee80211_supported_band *sband, 2673 const u8 *srates, int srates_len, u32 *rates); 2674 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo); 2675 void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata, 2676 struct ieee80211_sta_s1g_cap *caps, 2677 struct sk_buff *skb); 2678 void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata, 2679 struct sk_buff *skb); 2680 2681 /* element building in SKBs */ 2682 int ieee80211_put_srates_elem(struct sk_buff *skb, 2683 const struct ieee80211_supported_band *sband, 2684 u32 basic_rates, u32 masked_rates, 2685 u8 element_id); 2686 int ieee80211_put_he_cap(struct sk_buff *skb, 2687 struct ieee80211_sub_if_data *sdata, 2688 const struct ieee80211_supported_band *sband, 2689 const struct ieee80211_conn_settings *conn); 2690 int ieee80211_put_he_6ghz_cap(struct sk_buff *skb, 2691 struct ieee80211_sub_if_data *sdata, 2692 enum ieee80211_smps_mode smps_mode); 2693 int ieee80211_put_eht_cap(struct sk_buff *skb, 2694 struct ieee80211_sub_if_data *sdata, 2695 const struct ieee80211_supported_band *sband, 2696 const struct ieee80211_conn_settings *conn); 2697 int ieee80211_put_reg_conn(struct sk_buff *skb, 2698 enum ieee80211_channel_flags flags); 2699 2700 /* channel management */ 2701 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper, 2702 struct cfg80211_chan_def *chandef); 2703 bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info, 2704 const struct ieee80211_vht_operation *oper, 2705 const struct ieee80211_ht_operation *htop, 2706 struct cfg80211_chan_def *chandef); 2707 void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation_info *info, 2708 struct cfg80211_chan_def *chandef); 2709 bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_local *local, 2710 const struct ieee80211_he_operation *he_oper, 2711 const struct ieee80211_eht_operation *eht_oper, 2712 struct cfg80211_chan_def *chandef); 2713 bool ieee80211_chandef_s1g_oper(struct ieee80211_local *local, 2714 const struct ieee80211_s1g_oper_ie *oper, 2715 struct cfg80211_chan_def *chandef); 2716 void ieee80211_chandef_downgrade(struct cfg80211_chan_def *chandef, 2717 struct ieee80211_conn_settings *conn); 2718 static inline void 2719 ieee80211_chanreq_downgrade(struct ieee80211_chan_req *chanreq, 2720 struct ieee80211_conn_settings *conn) 2721 { 2722 ieee80211_chandef_downgrade(&chanreq->oper, conn); 2723 if (WARN_ON(!conn)) 2724 return; 2725 if (conn->mode < IEEE80211_CONN_MODE_EHT) 2726 chanreq->ap.chan = NULL; 2727 } 2728 2729 bool ieee80211_chanreq_identical(const struct ieee80211_chan_req *a, 2730 const struct ieee80211_chan_req *b); 2731 2732 int __must_check 2733 _ieee80211_link_use_channel(struct ieee80211_link_data *link, 2734 const struct ieee80211_chan_req *req, 2735 enum ieee80211_chanctx_mode mode, 2736 bool assign_on_failure); 2737 2738 static inline int __must_check 2739 ieee80211_link_use_channel(struct ieee80211_link_data *link, 2740 const struct ieee80211_chan_req *req, 2741 enum ieee80211_chanctx_mode mode) 2742 { 2743 return _ieee80211_link_use_channel(link, req, mode, false); 2744 } 2745 2746 int __must_check 2747 ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link, 2748 const struct ieee80211_chan_req *req, 2749 enum ieee80211_chanctx_mode mode, 2750 bool radar_required); 2751 int __must_check 2752 ieee80211_link_use_reserved_context(struct ieee80211_link_data *link); 2753 void ieee80211_link_unreserve_chanctx(struct ieee80211_link_data *link); 2754 2755 int __must_check 2756 ieee80211_link_change_chanreq(struct ieee80211_link_data *link, 2757 const struct ieee80211_chan_req *req, 2758 u64 *changed); 2759 void __ieee80211_link_release_channel(struct ieee80211_link_data *link, 2760 bool skip_idle_recalc); 2761 void ieee80211_link_release_channel(struct ieee80211_link_data *link); 2762 void ieee80211_link_vlan_copy_chanctx(struct ieee80211_link_data *link); 2763 void ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link, 2764 bool clear); 2765 int ieee80211_chanctx_refcount(struct ieee80211_local *local, 2766 struct ieee80211_chanctx *ctx); 2767 2768 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local, 2769 struct ieee80211_chanctx *chanctx); 2770 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local, 2771 struct ieee80211_chanctx *ctx, 2772 struct ieee80211_link_data *rsvd_for, 2773 bool check_reserved); 2774 bool ieee80211_is_radar_required(struct ieee80211_local *local, 2775 struct cfg80211_scan_request *req); 2776 bool ieee80211_is_radio_idx_in_scan_req(struct wiphy *wiphy, 2777 struct cfg80211_scan_request *scan_req, 2778 int radio_idx); 2779 2780 void ieee80211_dfs_cac_timer_work(struct wiphy *wiphy, struct wiphy_work *work); 2781 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local, 2782 struct ieee80211_chanctx *chanctx); 2783 void ieee80211_dfs_radar_detected_work(struct wiphy *wiphy, 2784 struct wiphy_work *work); 2785 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, 2786 struct cfg80211_csa_settings *csa_settings); 2787 void ieee80211_recalc_sb_count(struct ieee80211_sub_if_data *sdata, u64 tsf); 2788 void ieee80211_recalc_dtim(struct ieee80211_sub_if_data *sdata, u64 tsf); 2789 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, 2790 const struct cfg80211_chan_def *chandef, 2791 enum ieee80211_chanctx_mode chanmode, 2792 u8 radar_detect, int radio_idx); 2793 int ieee80211_max_num_channels(struct ieee80211_local *local, int radio_idx); 2794 u32 ieee80211_get_radio_mask(struct wiphy *wiphy, struct net_device *dev); 2795 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local, 2796 struct ieee80211_chanctx *ctx); 2797 2798 /* TDLS */ 2799 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 2800 const u8 *peer, int link_id, 2801 u8 action_code, u8 dialog_token, u16 status_code, 2802 u32 peer_capability, bool initiator, 2803 const u8 *extra_ies, size_t extra_ies_len); 2804 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 2805 const u8 *peer, enum nl80211_tdls_operation oper); 2806 void ieee80211_tdls_peer_del_work(struct wiphy *wiphy, struct wiphy_work *wk); 2807 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev, 2808 const u8 *addr, u8 oper_class, 2809 struct cfg80211_chan_def *chandef); 2810 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy, 2811 struct net_device *dev, 2812 const u8 *addr); 2813 void ieee80211_teardown_tdls_peers(struct ieee80211_link_data *link); 2814 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata, 2815 const u8 *peer, u16 reason); 2816 void 2817 ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata, 2818 struct sk_buff *skb); 2819 2820 2821 const char *ieee80211_get_reason_code_string(u16 reason_code); 2822 u16 ieee80211_encode_usf(int val); 2823 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, 2824 enum nl80211_iftype type); 2825 2826 extern const struct ethtool_ops ieee80211_ethtool_ops; 2827 2828 u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw, 2829 struct ieee80211_vif *vif, 2830 struct ieee80211_sta *pubsta, 2831 int len, bool ampdu); 2832 #ifdef CONFIG_MAC80211_NOINLINE 2833 #define debug_noinline noinline 2834 #else 2835 #define debug_noinline 2836 #endif 2837 2838 void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache); 2839 void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache); 2840 2841 u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata); 2842 2843 void 2844 ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata, 2845 struct ieee80211_supported_band *sband, 2846 const u8 *he_cap_ie, u8 he_cap_len, 2847 const struct ieee80211_eht_cap_elem *eht_cap_ie_elem, 2848 u8 eht_cap_len, 2849 struct link_sta_info *link_sta); 2850 void ieee80211_process_neg_ttlm_req(struct ieee80211_sub_if_data *sdata, 2851 struct ieee80211_mgmt *mgmt, size_t len); 2852 void ieee80211_process_neg_ttlm_res(struct ieee80211_sub_if_data *sdata, 2853 struct ieee80211_mgmt *mgmt, size_t len); 2854 int ieee80211_req_neg_ttlm(struct ieee80211_sub_if_data *sdata, 2855 struct cfg80211_ttlm_params *params); 2856 void ieee80211_process_ttlm_teardown(struct ieee80211_sub_if_data *sdata); 2857 2858 void ieee80211_check_wbrf_support(struct ieee80211_local *local); 2859 void ieee80211_add_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef); 2860 void ieee80211_remove_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef); 2861 int ieee80211_mgd_set_epcs(struct ieee80211_sub_if_data *sdata, bool enable); 2862 void ieee80211_process_epcs_ena_resp(struct ieee80211_sub_if_data *sdata, 2863 struct ieee80211_mgmt *mgmt, size_t len); 2864 void ieee80211_process_epcs_teardown(struct ieee80211_sub_if_data *sdata, 2865 struct ieee80211_mgmt *mgmt, size_t len); 2866 2867 int ieee80211_mgd_assoc_ml_reconf(struct ieee80211_sub_if_data *sdata, 2868 struct cfg80211_ml_reconf_req *req); 2869 2870 void ieee80211_process_ml_reconf_resp(struct ieee80211_sub_if_data *sdata, 2871 struct ieee80211_mgmt *mgmt, size_t len); 2872 void ieee80211_stop_mbssid(struct ieee80211_sub_if_data *sdata); 2873 2874 #if IS_ENABLED(CONFIG_MAC80211_KUNIT_TEST) 2875 #define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym) EXPORT_SYMBOL_IF_KUNIT(sym) 2876 #define VISIBLE_IF_MAC80211_KUNIT 2877 ieee80211_rx_result 2878 ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx); 2879 int ieee80211_calc_chandef_subchan_offset(const struct cfg80211_chan_def *ap, 2880 u8 n_partial_subchans); 2881 void ieee80211_rearrange_tpe_psd(struct ieee80211_parsed_tpe_psd *psd, 2882 const struct cfg80211_chan_def *ap, 2883 const struct cfg80211_chan_def *used); 2884 struct ieee802_11_elems * 2885 ieee80211_determine_chan_mode(struct ieee80211_sub_if_data *sdata, 2886 struct ieee80211_conn_settings *conn, 2887 struct cfg80211_bss *cbss, int link_id, 2888 struct ieee80211_chan_req *chanreq, 2889 struct cfg80211_chan_def *ap_chandef, 2890 unsigned long *userspace_selectors); 2891 #else 2892 #define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym) 2893 #define VISIBLE_IF_MAC80211_KUNIT static 2894 #endif 2895 2896 #endif /* IEEE80211_I_H */ 2897