1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright 2002-2005, Instant802 Networks, Inc. 4 * Copyright 2005, Devicescape Software, Inc. 5 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> 6 * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net> 7 * Copyright 2013-2015 Intel Mobile Communications GmbH 8 * Copyright (C) 2018-2026 Intel Corporation 9 */ 10 11 #ifndef IEEE80211_I_H 12 #define IEEE80211_I_H 13 14 #include <linux/kernel.h> 15 #include <linux/device.h> 16 #include <linux/if_ether.h> 17 #include <linux/interrupt.h> 18 #include <linux/list.h> 19 #include <linux/netdevice.h> 20 #include <linux/skbuff.h> 21 #include <linux/workqueue.h> 22 #include <linux/types.h> 23 #include <linux/spinlock.h> 24 #include <linux/etherdevice.h> 25 #include <linux/leds.h> 26 #include <linux/idr.h> 27 #include <linux/rhashtable.h> 28 #include <linux/rbtree.h> 29 #include <kunit/visibility.h> 30 #include <net/ieee80211_radiotap.h> 31 #include <net/cfg80211.h> 32 #include <net/mac80211.h> 33 #include <net/fq.h> 34 #include "key.h" 35 #include "sta_info.h" 36 #include "debug.h" 37 #include "drop.h" 38 39 extern const struct cfg80211_ops mac80211_config_ops; 40 41 struct ieee80211_local; 42 struct ieee80211_mesh_fast_tx; 43 44 /* Maximum number of broadcast/multicast frames to buffer when some of the 45 * associated stations are using power saving. */ 46 #define AP_MAX_BC_BUFFER 128 47 48 /* Maximum number of frames buffered to all STAs, including multicast frames. 49 * Note: increasing this limit increases the potential memory requirement. Each 50 * frame can be up to about 2 kB long. */ 51 #define TOTAL_MAX_TX_BUFFER 512 52 53 /* Required encryption head and tailroom */ 54 #define IEEE80211_ENCRYPT_HEADROOM 8 55 #define IEEE80211_ENCRYPT_TAILROOM 26 /* current max: GMAC/CMAC-256 MME */ 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_TYPE_UHR_OMP = 3, 103 IEEE80211_STATUS_SUBDATA_MASK = 0x1ff0, 104 }; 105 106 static inline bool 107 ieee80211_sta_keep_active(struct sta_info *sta, u8 ac) 108 { 109 /* Keep a station's queues on the active list for deficit accounting 110 * purposes if it was active or queued during the last 100ms. 111 */ 112 return time_before_eq(jiffies, sta->airtime[ac].last_active + HZ / 10); 113 } 114 115 struct ieee80211_bss { 116 u32 device_ts_beacon, device_ts_presp; 117 118 bool wmm_used; 119 bool uapsd_supported; 120 121 #define IEEE80211_MAX_SUPP_RATES 32 122 u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; 123 size_t supp_rates_len; 124 struct ieee80211_rate *beacon_rate; 125 126 u32 vht_cap_info; 127 128 /* 129 * During association, we save an ERP value from a probe response so 130 * that we can feed ERP info to the driver when handling the 131 * association completes. these fields probably won't be up-to-date 132 * otherwise, you probably don't want to use them. 133 */ 134 bool has_erp_value; 135 u8 erp_value; 136 137 /* Keep track of the corruption of the last beacon/probe response. */ 138 u8 corrupt_data; 139 140 /* Keep track of what bits of information we have valid info for. */ 141 u8 valid_data; 142 }; 143 144 /** 145 * enum ieee80211_bss_corrupt_data_flags - BSS data corruption flags 146 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted 147 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted 148 * 149 * These are bss flags that are attached to a bss in the 150 * @corrupt_data field of &struct ieee80211_bss. 151 */ 152 enum ieee80211_bss_corrupt_data_flags { 153 IEEE80211_BSS_CORRUPT_BEACON = BIT(0), 154 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1) 155 }; 156 157 /** 158 * enum ieee80211_bss_valid_data_flags - BSS valid data flags 159 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE 160 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE 161 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE 162 * 163 * These are bss flags that are attached to a bss in the 164 * @valid_data field of &struct ieee80211_bss. They show which parts 165 * of the data structure were received as a result of an un-corrupted 166 * beacon/probe response. 167 */ 168 enum ieee80211_bss_valid_data_flags { 169 IEEE80211_BSS_VALID_WMM = BIT(1), 170 IEEE80211_BSS_VALID_RATES = BIT(2), 171 IEEE80211_BSS_VALID_ERP = BIT(3) 172 }; 173 174 typedef unsigned __bitwise ieee80211_tx_result; 175 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u) 176 #define TX_DROP ((__force ieee80211_tx_result) 1u) 177 #define TX_QUEUED ((__force ieee80211_tx_result) 2u) 178 179 #define IEEE80211_TX_UNICAST BIT(1) 180 #define IEEE80211_TX_PS_BUFFERED BIT(2) 181 182 struct ieee80211_tx_data { 183 struct sk_buff *skb; 184 struct sk_buff_head skbs; 185 struct ieee80211_local *local; 186 struct ieee80211_sub_if_data *sdata; 187 struct sta_info *sta; 188 struct ieee80211_key *key; 189 struct ieee80211_tx_rate rate; 190 191 unsigned int flags; 192 }; 193 194 static inline bool ieee80211_is_tx_data(struct sk_buff *skb) 195 { 196 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); 197 struct ieee80211_hdr *hdr = (void *)skb->data; 198 199 return info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP || 200 ieee80211_is_data(hdr->frame_control); 201 } 202 203 /** 204 * enum ieee80211_packet_rx_flags - packet RX flags 205 * @IEEE80211_RX_AMSDU: a-MSDU packet 206 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed 207 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering 208 * 209 * These are per-frame flags that are attached to a frame in the 210 * @rx_flags field of &struct ieee80211_rx_status. 211 */ 212 enum ieee80211_packet_rx_flags { 213 IEEE80211_RX_AMSDU = BIT(3), 214 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4), 215 IEEE80211_RX_DEFERRED_RELEASE = BIT(5), 216 }; 217 218 /** 219 * enum ieee80211_rx_flags - RX data flags 220 * 221 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported 222 * to cfg80211_report_obss_beacon(). 223 * 224 * These flags are used across handling multiple interfaces 225 * for a single frame. 226 */ 227 enum ieee80211_rx_flags { 228 IEEE80211_RX_BEACON_REPORTED = BIT(0), 229 }; 230 231 struct ieee80211_rx_data { 232 struct list_head *list; 233 struct sk_buff *skb; 234 struct ieee80211_local *local; 235 struct ieee80211_sub_if_data *sdata; 236 struct ieee80211_link_data *link; 237 struct sta_info *sta; 238 struct link_sta_info *link_sta; 239 struct ieee80211_key *key; 240 241 unsigned int flags; 242 243 /* 244 * Index into sequence numbers array, 0..16 245 * since the last (16) is used for non-QoS, 246 * will be 16 on non-QoS frames. 247 */ 248 int seqno_idx; 249 250 /* 251 * Index into the security IV/PN arrays, 0..16 252 * since the last (16) is used for CCMP-encrypted 253 * management frames, will be set to 16 on mgmt 254 * frames and 0 on non-QoS frames. 255 */ 256 int security_idx; 257 258 int link_id; 259 260 union { 261 struct { 262 u32 iv32; 263 u16 iv16; 264 } tkip; 265 struct { 266 u8 pn[IEEE80211_CCMP_PN_LEN]; 267 } ccm_gcm; 268 }; 269 270 u8 link_addrs[3 * ETH_ALEN]; 271 }; 272 273 struct ieee80211_csa_settings { 274 const u16 *counter_offsets_beacon; 275 const u16 *counter_offsets_presp; 276 277 int n_counter_offsets_beacon; 278 int n_counter_offsets_presp; 279 280 u8 count; 281 }; 282 283 struct ieee80211_color_change_settings { 284 u16 counter_offset_beacon; 285 u16 counter_offset_presp; 286 u8 count; 287 }; 288 289 struct beacon_data { 290 u8 *head, *tail; 291 int head_len, tail_len; 292 struct ieee80211_meshconf_ie *meshconf; 293 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM]; 294 u8 cntdwn_current_counter; 295 struct cfg80211_mbssid_elems *mbssid_ies; 296 struct cfg80211_rnr_elems *rnr_ies; 297 struct rcu_head rcu_head; 298 }; 299 300 struct probe_resp { 301 struct rcu_head rcu_head; 302 int len; 303 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM]; 304 u8 data[]; 305 }; 306 307 struct fils_discovery_data { 308 struct rcu_head rcu_head; 309 int len; 310 u8 data[]; 311 }; 312 313 struct unsol_bcast_probe_resp_data { 314 struct rcu_head rcu_head; 315 int len; 316 u8 data[]; 317 }; 318 319 struct s1g_short_beacon_data { 320 struct rcu_head rcu_head; 321 u8 *short_head; 322 u8 *short_tail; 323 int short_head_len; 324 int short_tail_len; 325 }; 326 327 struct ps_data { 328 /* yes, this looks ugly, but guarantees that we can later use 329 * bitmap_empty :) 330 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */ 331 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)] 332 __aligned(__alignof__(unsigned long)); 333 struct sk_buff_head bc_buf; 334 atomic_t num_sta_ps; /* number of stations in PS mode */ 335 int dtim_count; 336 bool dtim_bc_mc; 337 int sb_count; /* num short beacons til next long beacon */ 338 }; 339 340 struct ieee80211_if_ap { 341 struct list_head vlans; /* write-protected with RTNL and local->mtx */ 342 343 struct ps_data ps; 344 atomic_t num_mcast_sta; /* number of stations receiving multicast */ 345 346 bool multicast_to_unicast; 347 bool active; 348 }; 349 350 struct ieee80211_if_vlan { 351 struct list_head list; /* write-protected with RTNL and local->mtx */ 352 353 /* used for all tx if the VLAN is configured to 4-addr mode */ 354 struct sta_info __rcu *sta; 355 atomic_t num_mcast_sta; /* number of stations receiving multicast */ 356 }; 357 358 struct mesh_stats { 359 __u32 fwded_mcast; /* Mesh forwarded multicast frames */ 360 __u32 fwded_unicast; /* Mesh forwarded unicast frames */ 361 __u32 fwded_frames; /* Mesh total forwarded frames */ 362 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/ 363 __u32 dropped_frames_no_route; /* Not transmitted, no route found */ 364 }; 365 366 #define PREQ_Q_F_START 0x1 367 #define PREQ_Q_F_REFRESH 0x2 368 struct mesh_preq_queue { 369 struct list_head list; 370 u8 dst[ETH_ALEN]; 371 u8 flags; 372 }; 373 374 struct ieee80211_roc_work { 375 struct list_head list; 376 377 struct ieee80211_sub_if_data *sdata; 378 379 struct ieee80211_channel *chan; 380 381 bool started, abort, hw_begun, notified; 382 bool on_channel; 383 384 unsigned long start_time; 385 386 u32 duration, req_duration; 387 struct sk_buff *frame; 388 u64 cookie, mgmt_tx_cookie; 389 enum ieee80211_roc_type type; 390 }; 391 392 /* flags used in struct ieee80211_if_managed.flags */ 393 enum ieee80211_sta_flags { 394 IEEE80211_STA_CONNECTION_POLL = BIT(1), 395 IEEE80211_STA_CONTROL_PORT = BIT(2), 396 IEEE80211_STA_MFP_ENABLED = BIT(6), 397 IEEE80211_STA_UAPSD_ENABLED = BIT(7), 398 IEEE80211_STA_NULLFUNC_ACKED = BIT(8), 399 IEEE80211_STA_ENABLE_RRM = BIT(15), 400 }; 401 402 enum ieee80211_conn_mode { 403 IEEE80211_CONN_MODE_S1G, 404 IEEE80211_CONN_MODE_LEGACY, 405 IEEE80211_CONN_MODE_HT, 406 IEEE80211_CONN_MODE_VHT, 407 IEEE80211_CONN_MODE_HE, 408 IEEE80211_CONN_MODE_EHT, 409 IEEE80211_CONN_MODE_UHR, 410 }; 411 412 #define IEEE80211_CONN_MODE_HIGHEST IEEE80211_CONN_MODE_UHR 413 414 enum ieee80211_conn_bw_limit { 415 IEEE80211_CONN_BW_LIMIT_20, 416 IEEE80211_CONN_BW_LIMIT_40, 417 IEEE80211_CONN_BW_LIMIT_80, 418 IEEE80211_CONN_BW_LIMIT_160, /* also 80+80 */ 419 IEEE80211_CONN_BW_LIMIT_320, 420 }; 421 422 struct ieee80211_conn_settings { 423 enum ieee80211_conn_mode mode; 424 enum ieee80211_conn_bw_limit bw_limit; 425 bool dbe_enabled; 426 }; 427 428 extern const struct ieee80211_conn_settings ieee80211_conn_settings_unlimited; 429 430 struct ieee80211_mgd_auth_data { 431 struct cfg80211_bss *bss; 432 unsigned long timeout; 433 int tries; 434 u16 algorithm, expected_transaction; 435 436 unsigned long userspace_selectors[BITS_TO_LONGS(128)]; 437 438 u8 key[WLAN_KEY_LEN_WEP104]; 439 u8 key_len, key_idx; 440 bool done, waiting; 441 bool peer_confirmed; 442 bool timeout_started; 443 int link_id; 444 445 u8 ap_addr[ETH_ALEN] __aligned(2); 446 447 u16 trans, status; 448 size_t data_len; 449 u8 data[]; 450 }; 451 452 struct ieee80211_mgd_assoc_data { 453 struct { 454 struct cfg80211_bss *bss; 455 456 u8 addr[ETH_ALEN] __aligned(2); 457 458 u8 ap_ht_param; 459 460 struct ieee80211_vht_cap ap_vht_cap; 461 462 size_t elems_len; 463 u8 *elems; /* pointing to inside ie[] below */ 464 465 struct ieee80211_conn_settings conn; 466 467 u16 status; 468 } link[IEEE80211_MLD_MAX_NUM_LINKS]; 469 470 u8 ap_addr[ETH_ALEN] __aligned(2); 471 472 /* this is for a workaround, so we use it only for non-MLO */ 473 const u8 *supp_rates; 474 u8 supp_rates_len; 475 476 unsigned long timeout; 477 int tries; 478 479 u8 prev_ap_addr[ETH_ALEN]; 480 u8 ssid[IEEE80211_MAX_SSID_LEN]; 481 u8 ssid_len; 482 bool wmm, uapsd; 483 bool need_beacon; 484 bool synced; 485 bool timeout_started; 486 bool comeback; /* whether the AP has requested association comeback */ 487 bool s1g; 488 bool spp_amsdu; 489 bool cip; 490 bool protected_twt; 491 492 s8 assoc_link_id; 493 494 __le16 ext_mld_capa_ops; 495 496 u8 fils_nonces[2 * FILS_NONCE_LEN]; 497 u8 fils_kek[FILS_MAX_KEK_LEN]; 498 size_t fils_kek_len; 499 500 size_t ie_len; 501 u8 *ie_pos; /* used to fill ie[] with link[].elems */ 502 u8 ie[]; 503 }; 504 505 struct ieee80211_sta_tx_tspec { 506 /* timestamp of the first packet in the time slice */ 507 unsigned long time_slice_start; 508 509 u32 admitted_time; /* in usecs, unlike over the air */ 510 u8 tsid; 511 s8 up; /* signed to be able to invalidate with -1 during teardown */ 512 513 /* consumed TX time in microseconds in the time slice */ 514 u32 consumed_tx_time; 515 enum { 516 TX_TSPEC_ACTION_NONE = 0, 517 TX_TSPEC_ACTION_DOWNGRADE, 518 TX_TSPEC_ACTION_STOP_DOWNGRADE, 519 } action; 520 bool downgraded; 521 }; 522 523 /* Advertised TID-to-link mapping info */ 524 struct ieee80211_adv_ttlm_info { 525 /* time in TUs at which the new mapping is established, or 0 if there is 526 * no planned advertised TID-to-link mapping 527 */ 528 u16 switch_time; 529 u32 duration; /* duration of the planned T2L map in TUs */ 530 u16 map; /* map of usable links for all TIDs */ 531 bool active; /* whether the advertised mapping is active or not */ 532 }; 533 534 DECLARE_EWMA(beacon_signal, 4, 4) 535 536 struct ieee80211_if_managed { 537 struct timer_list timer; 538 struct timer_list conn_mon_timer; 539 struct timer_list bcn_mon_timer; 540 struct wiphy_work monitor_work; 541 struct wiphy_work beacon_connection_loss_work; 542 struct wiphy_work csa_connection_drop_work; 543 544 unsigned long beacon_timeout; 545 unsigned long probe_timeout; 546 int probe_send_count; 547 bool nullfunc_failed; 548 u8 connection_loss:1, 549 driver_disconnect:1, 550 reconnect:1, 551 associated:1; 552 553 struct ieee80211_mgd_auth_data *auth_data; 554 struct ieee80211_mgd_assoc_data *assoc_data; 555 556 unsigned long userspace_selectors[BITS_TO_LONGS(128)]; 557 558 bool powersave; /* powersave requested for this iface */ 559 bool broken_ap; /* AP is broken -- turn off powersave */ 560 561 unsigned int flags; 562 563 u16 mcast_seq_last; 564 565 bool status_acked; 566 bool status_received; 567 __le16 status_fc; 568 569 enum { 570 IEEE80211_MFP_DISABLED, 571 IEEE80211_MFP_OPTIONAL, 572 IEEE80211_MFP_REQUIRED 573 } mfp; /* management frame protection */ 574 575 /* 576 * Bitmask of enabled u-apsd queues, 577 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association 578 * to take effect. 579 */ 580 unsigned int uapsd_queues; 581 582 /* 583 * Maximum number of buffered frames AP can deliver during a 584 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar. 585 * Needs a new association to take effect. 586 */ 587 unsigned int uapsd_max_sp_len; 588 589 u8 use_4addr; 590 591 /* 592 * State variables for keeping track of RSSI of the AP currently 593 * connected to and informing driver when RSSI has gone 594 * below/above a certain threshold. 595 */ 596 int rssi_min_thold, rssi_max_thold; 597 598 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ 599 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ 600 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */ 601 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */ 602 struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */ 603 struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */ 604 605 /* TDLS support */ 606 u8 tdls_peer[ETH_ALEN] __aligned(2); 607 struct wiphy_delayed_work tdls_peer_del_work; 608 struct sk_buff *orig_teardown_skb; /* The original teardown skb */ 609 struct sk_buff *teardown_skb; /* A copy to send through the AP */ 610 spinlock_t teardown_lock; /* To lock changing teardown_skb */ 611 bool tdls_wider_bw_prohibited; 612 613 /* WMM-AC TSPEC support */ 614 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS]; 615 /* Use a separate work struct so that we can do something here 616 * while the sdata->work is flushing the queues, for example. 617 * otherwise, in scenarios where we hardly get any traffic out 618 * on the BE queue, but there's a lot of VO traffic, we might 619 * get stuck in a downgraded situation and flush takes forever. 620 */ 621 struct wiphy_delayed_work tx_tspec_wk; 622 623 /* Information elements from the last transmitted (Re)Association 624 * Request frame. 625 */ 626 u8 *assoc_req_ies; 627 size_t assoc_req_ies_len; 628 629 struct wiphy_hrtimer_work ml_reconf_work; 630 u16 removed_links; 631 632 /* TID-to-link mapping support */ 633 struct wiphy_hrtimer_work ttlm_work; 634 struct ieee80211_adv_ttlm_info ttlm_info; 635 struct wiphy_work teardown_ttlm_work; 636 637 /* dialog token enumerator for neg TTLM request */ 638 u8 dialog_token_alloc; 639 struct wiphy_delayed_work neg_ttlm_timeout_work; 640 641 /* Locally initiated multi-link reconfiguration */ 642 struct { 643 struct ieee80211_mgd_assoc_data *add_links_data; 644 struct wiphy_delayed_work wk; 645 u16 removed_links; 646 u16 added_links; 647 u8 dialog_token; 648 } reconf; 649 650 /* Support for epcs */ 651 struct { 652 bool enabled; 653 u8 dialog_token; 654 } epcs; 655 656 struct { 657 struct wiphy_hrtimer_work status_work; 658 u32 timeout_us; 659 u16 links; 660 u16 pending, pending_init; 661 u8 dialog_token; 662 bool acked; 663 } uhr_omp; 664 }; 665 666 struct ieee80211_if_ibss { 667 struct timer_list timer; 668 struct wiphy_work csa_connection_drop_work; 669 670 unsigned long last_scan_completed; 671 672 u32 basic_rates; 673 674 bool fixed_bssid; 675 bool fixed_channel; 676 bool privacy; 677 678 bool control_port; 679 bool userspace_handles_dfs; 680 681 u8 bssid[ETH_ALEN] __aligned(2); 682 u8 ssid[IEEE80211_MAX_SSID_LEN]; 683 u8 ssid_len, ie_len; 684 u8 *ie; 685 struct cfg80211_chan_def chandef; 686 687 unsigned long ibss_join_req; 688 /* probe response/beacon for IBSS */ 689 struct beacon_data __rcu *presp; 690 691 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ 692 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ 693 694 spinlock_t incomplete_lock; 695 struct list_head incomplete_stations; 696 697 enum { 698 IEEE80211_IBSS_MLME_SEARCH, 699 IEEE80211_IBSS_MLME_JOINED, 700 } state; 701 }; 702 703 /** 704 * struct ieee80211_if_ocb - OCB mode state 705 * 706 * @housekeeping_timer: timer for periodic invocation of a housekeeping task 707 * @wrkq_flags: OCB deferred task action 708 * @incomplete_lock: delayed STA insertion lock 709 * @incomplete_stations: list of STAs waiting for delayed insertion 710 * @joined: indication if the interface is connected to an OCB network 711 */ 712 struct ieee80211_if_ocb { 713 struct timer_list housekeeping_timer; 714 unsigned long wrkq_flags; 715 716 spinlock_t incomplete_lock; 717 struct list_head incomplete_stations; 718 719 bool joined; 720 }; 721 722 /** 723 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface 724 * 725 * these declarations define the interface, which enables 726 * vendor-specific mesh synchronization 727 * 728 * @rx_bcn_presp: beacon/probe response was received 729 * @adjust_tsf: TSF adjustment method 730 */ 731 struct ieee80211_mesh_sync_ops { 732 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, u16 stype, 733 struct ieee80211_mgmt *mgmt, unsigned int len, 734 const struct ieee80211_meshconf_ie *mesh_cfg, 735 struct ieee80211_rx_status *rx_status); 736 737 /* should be called with beacon_data under RCU read lock */ 738 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata, 739 struct beacon_data *beacon); 740 /* add other framework functions here */ 741 }; 742 743 struct mesh_csa_settings { 744 struct rcu_head rcu_head; 745 struct cfg80211_csa_settings settings; 746 }; 747 748 /** 749 * struct mesh_table - mesh hash table 750 * 751 * @known_gates: list of known mesh gates and their mpaths by the station. The 752 * gate's mpath may or may not be resolved and active. 753 * @gates_lock: protects updates to known_gates 754 * @rhead: the rhashtable containing struct mesh_paths, keyed by dest addr 755 * @walk_head: linked list containing all mesh_path objects 756 * @walk_lock: lock protecting walk_head 757 * @entries: number of entries in the table 758 */ 759 struct mesh_table { 760 struct hlist_head known_gates; 761 spinlock_t gates_lock; 762 struct rhashtable rhead; 763 struct hlist_head walk_head; 764 spinlock_t walk_lock; 765 atomic_t entries; /* Up to MAX_MESH_NEIGHBOURS */ 766 }; 767 768 /** 769 * struct mesh_tx_cache - mesh fast xmit header cache 770 * 771 * @rht: hash table containing struct ieee80211_mesh_fast_tx, using skb DA as key 772 * @walk_head: linked list containing all ieee80211_mesh_fast_tx objects 773 * @walk_lock: lock protecting walk_head and rht 774 */ 775 struct mesh_tx_cache { 776 struct rhashtable rht; 777 struct hlist_head walk_head; 778 spinlock_t walk_lock; 779 }; 780 781 struct ieee80211_if_mesh { 782 struct timer_list housekeeping_timer; 783 struct timer_list mesh_path_timer; 784 struct timer_list mesh_path_root_timer; 785 786 unsigned long wrkq_flags; 787 unsigned long mbss_changed[64 / BITS_PER_LONG]; 788 789 bool userspace_handles_dfs; 790 791 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN]; 792 size_t mesh_id_len; 793 /* Active Path Selection Protocol Identifier */ 794 u8 mesh_pp_id; 795 /* Active Path Selection Metric Identifier */ 796 u8 mesh_pm_id; 797 /* Congestion Control Mode Identifier */ 798 u8 mesh_cc_id; 799 /* Synchronization Protocol Identifier */ 800 u8 mesh_sp_id; 801 /* Authentication Protocol Identifier */ 802 u8 mesh_auth_id; 803 /* Local mesh Sequence Number */ 804 u32 sn; 805 /* Last used PREQ ID */ 806 u32 preq_id; 807 atomic_t mpaths; 808 /* Timestamp of last SN update */ 809 unsigned long last_sn_update; 810 /* Time when it's ok to send next PERR */ 811 unsigned long next_perr; 812 /* Timestamp of last PREQ sent */ 813 unsigned long last_preq; 814 struct mesh_rmc *rmc; 815 spinlock_t mesh_preq_queue_lock; 816 struct mesh_preq_queue preq_queue; 817 int preq_queue_len; 818 struct mesh_stats mshstats; 819 struct mesh_config mshcfg; 820 atomic_t estab_plinks; 821 atomic_t mesh_seqnum; 822 bool accepting_plinks; 823 int num_gates; 824 struct beacon_data __rcu *beacon; 825 const u8 *ie; 826 u8 ie_len; 827 enum { 828 IEEE80211_MESH_SEC_NONE = 0x0, 829 IEEE80211_MESH_SEC_AUTHED = 0x1, 830 IEEE80211_MESH_SEC_SECURED = 0x2, 831 } security; 832 bool user_mpm; 833 /* Extensible Synchronization Framework */ 834 const struct ieee80211_mesh_sync_ops *sync_ops; 835 s64 sync_offset_clockdrift_max; 836 spinlock_t sync_offset_lock; 837 /* mesh power save */ 838 enum nl80211_mesh_power_mode nonpeer_pm; 839 int ps_peers_light_sleep; 840 int ps_peers_deep_sleep; 841 struct ps_data ps; 842 /* Channel Switching Support */ 843 struct mesh_csa_settings __rcu *csa; 844 enum { 845 IEEE80211_MESH_CSA_ROLE_NONE, 846 IEEE80211_MESH_CSA_ROLE_INIT, 847 IEEE80211_MESH_CSA_ROLE_REPEATER, 848 } csa_role; 849 u8 chsw_ttl; 850 u16 pre_value; 851 852 /* offset from skb->data while building IE */ 853 int meshconf_offset; 854 855 struct mesh_table mesh_paths; 856 struct mesh_table mpp_paths; /* Store paths for MPP&MAP */ 857 int mesh_paths_generation; 858 int mpp_paths_generation; 859 struct mesh_tx_cache tx_cache; 860 }; 861 862 #ifdef CONFIG_MAC80211_MESH 863 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ 864 do { (msh)->mshstats.name++; } while (0) 865 #else 866 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ 867 do { } while (0) 868 #endif 869 870 /** 871 * enum ieee80211_sub_if_data_flags - virtual interface flags 872 * 873 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets 874 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between 875 * associated stations and deliver multicast frames both 876 * back to wireless media and to the local net stack. 877 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume. 878 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver 879 * @IEEE80211_SDATA_DISCONNECT_HW_RESTART: Disconnect after hardware restart 880 * recovery 881 */ 882 enum ieee80211_sub_if_data_flags { 883 IEEE80211_SDATA_ALLMULTI = BIT(0), 884 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3), 885 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4), 886 IEEE80211_SDATA_IN_DRIVER = BIT(5), 887 IEEE80211_SDATA_DISCONNECT_HW_RESTART = BIT(6), 888 }; 889 890 /** 891 * enum ieee80211_sdata_state_bits - virtual interface state bits 892 * @SDATA_STATE_RUNNING: virtual interface is up & running; this 893 * mirrors netif_running() but is separate for interface type 894 * change handling while the interface is up 895 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel 896 * mode, so queues are stopped 897 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due 898 * to offchannel, reset when offchannel returns 899 */ 900 enum ieee80211_sdata_state_bits { 901 SDATA_STATE_RUNNING, 902 SDATA_STATE_OFFCHANNEL, 903 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, 904 }; 905 906 /** 907 * enum ieee80211_chanctx_mode - channel context configuration mode 908 * 909 * @IEEE80211_CHANCTX_SHARED: channel context may be used by 910 * multiple interfaces 911 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used 912 * only by a single interface. This can be used for example for 913 * non-fixed channel IBSS. 914 */ 915 enum ieee80211_chanctx_mode { 916 IEEE80211_CHANCTX_SHARED, 917 IEEE80211_CHANCTX_EXCLUSIVE 918 }; 919 920 /** 921 * enum ieee80211_chanctx_replace_state - channel context replacement state 922 * 923 * This is used for channel context in-place reservations that require channel 924 * context switch/swap. 925 * 926 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place 927 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced 928 * by a (not yet registered) channel context pointed by %replace_ctx. 929 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context 930 * replaces an existing channel context pointed to by %replace_ctx. 931 */ 932 enum ieee80211_chanctx_replace_state { 933 IEEE80211_CHANCTX_REPLACE_NONE, 934 IEEE80211_CHANCTX_WILL_BE_REPLACED, 935 IEEE80211_CHANCTX_REPLACES_OTHER, 936 }; 937 938 struct ieee80211_chanctx { 939 struct list_head list; 940 struct rcu_head rcu_head; 941 942 enum ieee80211_chanctx_replace_state replace_state; 943 struct ieee80211_chanctx *replace_ctx; 944 945 enum ieee80211_chanctx_mode mode; 946 bool driver_present; 947 948 /* temporary data for search algorithm etc. */ 949 struct ieee80211_chan_req req; 950 951 bool radar_detected; 952 953 /* This chanctx is in process of getting used */ 954 bool will_be_used; 955 956 /* MUST be last - ends in a flexible-array member. */ 957 struct ieee80211_chanctx_conf conf; 958 }; 959 960 struct mac80211_qos_map { 961 struct cfg80211_qos_map qos_map; 962 struct rcu_head rcu_head; 963 }; 964 965 enum txq_info_flags { 966 IEEE80211_TXQ_STOP, 967 IEEE80211_TXQ_AMPDU, 968 IEEE80211_TXQ_NO_AMSDU, 969 IEEE80211_TXQ_DIRTY, 970 }; 971 972 /** 973 * struct txq_info - per tid queue 974 * 975 * @tin: contains packets split into multiple flows 976 * @def_cvars: codel vars for the @tin's default_flow 977 * @cstats: code statistics for this queue 978 * @frags: used to keep fragments created after dequeue 979 * @schedule_order: used with ieee80211_local->active_txqs 980 * @schedule_round: counter to prevent infinite loops on TXQ scheduling 981 * @flags: TXQ flags from &enum txq_info_flags 982 * @txq: the driver visible part 983 */ 984 struct txq_info { 985 struct fq_tin tin; 986 struct codel_vars def_cvars; 987 struct codel_stats cstats; 988 989 u16 schedule_round; 990 struct list_head schedule_order; 991 992 struct sk_buff_head frags; 993 994 unsigned long flags; 995 996 /* keep last! */ 997 struct ieee80211_txq txq; 998 }; 999 1000 struct ieee80211_if_mntr { 1001 u32 flags; 1002 u8 mu_follow_addr[ETH_ALEN] __aligned(2); 1003 1004 struct list_head list; 1005 }; 1006 1007 /** 1008 * struct ieee80211_if_nan - NAN state 1009 * 1010 * @conf: current NAN configuration 1011 * @started: true iff NAN is started 1012 * @de: Discovery Engine state (only valid if !WIPHY_NAN_FLAGS_USERSPACE_DE) 1013 * @de.func_lock: lock for @de.function_inst_ids 1014 * @de.function_inst_ids: a bitmap of available instance_id's 1015 * @removed_channels: bitmap of channels that should be removed from the NAN 1016 * schedule once the deferred schedule update is completed. 1017 */ 1018 struct ieee80211_if_nan { 1019 struct cfg80211_nan_conf conf; 1020 bool started; 1021 1022 struct { 1023 /* protects function_inst_ids */ 1024 spinlock_t func_lock; 1025 struct idr function_inst_ids; 1026 } de; 1027 1028 DECLARE_BITMAP(removed_channels, IEEE80211_NAN_MAX_CHANNELS); 1029 }; 1030 1031 /** 1032 * struct ieee80211_if_nan_data - NAN data path state 1033 * 1034 * @nmi: pointer to the NAN management interface sdata. Used for data path, 1035 * hence RCU. 1036 */ 1037 struct ieee80211_if_nan_data { 1038 struct ieee80211_sub_if_data __rcu *nmi; 1039 }; 1040 1041 struct ieee80211_link_data_managed { 1042 u8 bssid[ETH_ALEN] __aligned(2); 1043 1044 u8 dtim_period; 1045 enum ieee80211_smps_mode req_smps, /* requested smps mode */ 1046 driver_smps_mode; /* smps mode request */ 1047 1048 struct ieee80211_conn_settings conn; 1049 1050 s16 p2p_noa_index; 1051 1052 bool tdls_chan_switch_prohibited; 1053 1054 bool have_beacon; 1055 bool tracking_signal_avg; 1056 bool disable_wmm_tracking; 1057 bool operating_11g_mode; 1058 1059 struct { 1060 struct wiphy_hrtimer_work switch_work; 1061 struct cfg80211_chan_def ap_chandef; 1062 struct ieee80211_parsed_tpe tpe; 1063 ktime_t time; 1064 bool waiting_bcn; 1065 bool ignored_same_chan; 1066 bool blocked_tx; 1067 } csa; 1068 1069 struct wiphy_work request_smps_work; 1070 /* used to reconfigure hardware SM PS */ 1071 struct wiphy_work recalc_smps; 1072 1073 bool beacon_crc_valid; 1074 u32 beacon_crc; 1075 struct ewma_beacon_signal ave_beacon_signal; 1076 int last_ave_beacon_signal; 1077 1078 /* 1079 * Number of Beacon frames used in ave_beacon_signal. This can be used 1080 * to avoid generating less reliable cqm events that would be based 1081 * only on couple of received frames. 1082 */ 1083 unsigned int count_beacon_signal; 1084 1085 /* Number of times beacon loss was invoked. */ 1086 unsigned int beacon_loss_count; 1087 1088 /* 1089 * Last Beacon frame signal strength average (ave_beacon_signal / 16) 1090 * that triggered a cqm event. 0 indicates that no event has been 1091 * generated for the current association. 1092 */ 1093 int last_cqm_event_signal; 1094 1095 int wmm_last_param_set; 1096 int mu_edca_last_param_set; 1097 }; 1098 1099 struct ieee80211_link_data_ap { 1100 struct beacon_data __rcu *beacon; 1101 struct probe_resp __rcu *probe_resp; 1102 struct fils_discovery_data __rcu *fils_discovery; 1103 struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp; 1104 struct s1g_short_beacon_data __rcu *s1g_short_beacon; 1105 1106 bool bss_update_in_progress; 1107 1108 /* to be used after channel switch. */ 1109 struct cfg80211_beacon_data *next_beacon; 1110 }; 1111 1112 struct ieee80211_link_data { 1113 struct ieee80211_sub_if_data *sdata; 1114 unsigned int link_id; 1115 1116 /* multicast keys only */ 1117 struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS + 1118 NUM_DEFAULT_MGMT_KEYS + 1119 NUM_DEFAULT_BEACON_KEYS]; 1120 struct ieee80211_key __rcu *cigtk[NUM_CTRL_KEYS]; 1121 struct ieee80211_key __rcu *default_multicast_key; 1122 struct ieee80211_key __rcu *default_mgmt_key; 1123 struct ieee80211_key __rcu *default_beacon_key; 1124 1125 1126 bool operating_11g_mode; 1127 1128 struct { 1129 struct wiphy_work finalize_work; 1130 struct ieee80211_chan_req chanreq; 1131 } csa; 1132 1133 struct wiphy_work color_change_finalize_work; 1134 struct wiphy_delayed_work color_collision_detect_work; 1135 u64 color_bitmap; 1136 1137 /* context reservation -- protected with wiphy mutex */ 1138 struct ieee80211_chanctx *reserved_chanctx; 1139 struct ieee80211_chan_req reserved; 1140 bool reserved_radar_required; 1141 bool reserved_ready; 1142 1143 u8 needed_rx_chains; 1144 enum ieee80211_smps_mode smps_mode; 1145 1146 int user_power_level; /* in dBm */ 1147 int ap_power_level; /* in dBm */ 1148 1149 bool radar_required; 1150 struct wiphy_hrtimer_work dfs_cac_timer_work; 1151 1152 union { 1153 struct ieee80211_link_data_managed mgd; 1154 struct ieee80211_link_data_ap ap; 1155 } u; 1156 1157 /* protects replacing the u.ap template pointers, also without wiphy mutex */ 1158 spinlock_t ap_tmpl_lock; 1159 1160 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS]; 1161 1162 struct ieee80211_bss_conf *conf; 1163 1164 struct { 1165 enum ieee80211_sta_rx_bandwidth he_and_lower; 1166 enum ieee80211_sta_rx_bandwidth eht; /* and UHR non-DBE */ 1167 } bss_bw; 1168 1169 #ifdef CONFIG_MAC80211_DEBUGFS 1170 struct dentry *debugfs_dir; 1171 #endif 1172 }; 1173 1174 #define ap_tmpl_dereference(link, p) \ 1175 rcu_dereference_protected(p, lockdep_is_held(&(link)->ap_tmpl_lock)) 1176 1177 #define ap_tmpl_replace(link, p, new) \ 1178 do { \ 1179 typeof(ap_tmpl_dereference(link, p)) __old; \ 1180 \ 1181 spin_lock(&(link)->ap_tmpl_lock); \ 1182 __old = rcu_replace_pointer(p, new, \ 1183 lockdep_is_held(&(link)->ap_tmpl_lock));\ 1184 spin_unlock(&(link)->ap_tmpl_lock); \ 1185 if (__old) \ 1186 kfree_rcu(__old, rcu_head); \ 1187 } while (0) 1188 1189 struct ieee80211_sub_if_data { 1190 struct list_head list; 1191 1192 struct wireless_dev wdev; 1193 1194 /* keys */ 1195 struct list_head key_list; 1196 1197 /* count for keys needing tailroom space allocation */ 1198 int crypto_tx_tailroom_needed_cnt; 1199 int crypto_tx_tailroom_pending_dec; 1200 struct wiphy_delayed_work dec_tailroom_needed_wk; 1201 1202 struct net_device *dev; 1203 struct ieee80211_local *local; 1204 1205 unsigned int flags; 1206 1207 unsigned long state; 1208 1209 char name[IFNAMSIZ]; 1210 1211 struct ieee80211_fragment_cache frags; 1212 1213 /* TID bitmap for NoAck policy */ 1214 u16 noack_map; 1215 1216 /* bit field of ACM bits (BIT(802.1D tag)) */ 1217 u8 wmm_acm; 1218 1219 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS]; 1220 struct ieee80211_key __rcu *default_unicast_key; 1221 1222 u16 sequence_number; 1223 u16 mld_mcast_seq; 1224 __be16 control_port_protocol; 1225 bool control_port_no_encrypt; 1226 bool control_port_no_preauth; 1227 bool control_port_over_nl80211; 1228 1229 atomic_t num_tx_queued; 1230 struct mac80211_qos_map __rcu *qos_map; 1231 1232 struct wiphy_work work; 1233 struct sk_buff_head skb_queue; 1234 struct sk_buff_head status_queue; 1235 1236 /* 1237 * AP this belongs to: self in AP mode and 1238 * corresponding AP in VLAN mode, NULL for 1239 * all others (might be needed later in IBSS) 1240 */ 1241 struct ieee80211_if_ap *bss; 1242 1243 /* bitmap of allowed (non-MCS) rate indexes for rate control */ 1244 u32 rc_rateidx_mask[NUM_NL80211_BANDS]; 1245 1246 bool rc_has_mcs_mask[NUM_NL80211_BANDS]; 1247 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN]; 1248 1249 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS]; 1250 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX]; 1251 1252 /* Beacon frame (non-MCS) rate (as a bitmap) */ 1253 u32 beacon_rateidx_mask[NUM_NL80211_BANDS]; 1254 bool beacon_rate_set; 1255 1256 union { 1257 struct ieee80211_if_ap ap; 1258 struct ieee80211_if_vlan vlan; 1259 struct ieee80211_if_managed mgd; 1260 struct ieee80211_if_ibss ibss; 1261 struct ieee80211_if_mesh mesh; 1262 struct ieee80211_if_ocb ocb; 1263 struct ieee80211_if_mntr mntr; 1264 struct ieee80211_if_nan nan; 1265 struct ieee80211_if_nan_data nan_data; 1266 } u; 1267 1268 struct ieee80211_link_data deflink; 1269 struct ieee80211_link_data __rcu *link[IEEE80211_MLD_MAX_NUM_LINKS]; 1270 1271 /* for ieee80211_set_active_links_async() */ 1272 struct wiphy_work activate_links_work; 1273 u16 desired_active_links; 1274 1275 u16 restart_active_links; 1276 1277 #ifdef CONFIG_MAC80211_DEBUGFS 1278 struct { 1279 struct dentry *subdir_stations; 1280 struct dentry *default_unicast_key; 1281 struct dentry *default_multicast_key; 1282 struct dentry *default_mgmt_key; 1283 struct dentry *default_beacon_key; 1284 } debugfs; 1285 #endif 1286 1287 u32 tx_handlers_drop; 1288 /* must be last, dynamically sized area in this! */ 1289 struct ieee80211_vif vif; 1290 }; 1291 1292 static inline 1293 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p) 1294 { 1295 return container_of(p, struct ieee80211_sub_if_data, vif); 1296 } 1297 1298 #define sdata_dereference(p, sdata) \ 1299 wiphy_dereference(sdata->local->hw.wiphy, p) 1300 1301 #define for_each_sdata_link(_local, _link) \ 1302 /* outer loop just to define the variables ... */ \ 1303 for (struct ieee80211_sub_if_data *___sdata = NULL; \ 1304 !___sdata; \ 1305 ___sdata = (void *)~0 /* always stop */) \ 1306 for (int ___link_id = ARRAY_SIZE(___sdata->link); \ 1307 ___link_id; ___link_id = 0 /* always stop */) \ 1308 list_for_each_entry(___sdata, &(_local)->interfaces, list) \ 1309 if (___link_id == ARRAY_SIZE(___sdata->link) && \ 1310 ieee80211_sdata_running(___sdata)) \ 1311 for (___link_id = 0; \ 1312 ___link_id < ARRAY_SIZE(___sdata->link); \ 1313 ___link_id++) \ 1314 if ((_link = wiphy_dereference((_local)->hw.wiphy, \ 1315 ___sdata->link[___link_id]))) 1316 1317 /* 1318 * for_each_sdata_link_rcu() must be used under RCU read lock. 1319 */ 1320 #define for_each_sdata_link_rcu(_local, _link) \ 1321 /* outer loop just to define the variables ... */ \ 1322 for (struct ieee80211_sub_if_data *___sdata = NULL; \ 1323 !___sdata; \ 1324 ___sdata = (void *)~0 /* always stop */) \ 1325 for (int ___link_id = ARRAY_SIZE(___sdata->link); \ 1326 ___link_id; ___link_id = 0 /* always stop */) \ 1327 list_for_each_entry(___sdata, &(_local)->interfaces, list) \ 1328 if (___link_id == ARRAY_SIZE(___sdata->link) && \ 1329 ieee80211_sdata_running(___sdata)) \ 1330 for (___link_id = 0; \ 1331 ___link_id < ARRAY_SIZE((___sdata)->link); \ 1332 ___link_id++) \ 1333 if ((_link = rcu_dereference((___sdata)->link[___link_id]))) 1334 1335 #define for_each_link_data(sdata, __link) \ 1336 /* outer loop just to define the variable ... */ \ 1337 for (struct ieee80211_sub_if_data *__sdata = (sdata); __sdata; \ 1338 __sdata = NULL /* always stop */) \ 1339 for (int __link_id = 0; \ 1340 __link_id < ARRAY_SIZE((__sdata)->link); __link_id++) \ 1341 if ((!(__sdata)->vif.valid_links || \ 1342 (__sdata)->vif.valid_links & BIT(__link_id)) && \ 1343 ((__link) = sdata_dereference((__sdata)->link[__link_id], \ 1344 (__sdata)))) 1345 1346 /* 1347 * for_each_link_data_rcu should be used under RCU read lock. 1348 */ 1349 #define for_each_link_data_rcu(sdata, __link) \ 1350 /* outer loop just to define the variable ... */ \ 1351 for (struct ieee80211_sub_if_data *__sdata = (sdata); __sdata; \ 1352 __sdata = NULL /* always stop */) \ 1353 for (int __link_id = 0; \ 1354 __link_id < ARRAY_SIZE((__sdata)->link); __link_id++) \ 1355 if ((!(__sdata)->vif.valid_links || \ 1356 (__sdata)->vif.valid_links & BIT(__link_id)) && \ 1357 ((__link) = rcu_dereference((__sdata)->link[__link_id]))) \ 1358 1359 static inline int 1360 ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems *elems, 1361 struct cfg80211_rnr_elems *rnr_elems, 1362 u8 i) 1363 { 1364 int len = 0; 1365 1366 if (!elems || !elems->cnt || i > elems->cnt) 1367 return 0; 1368 1369 if (i < elems->cnt) { 1370 len = elems->elem[i].len; 1371 if (rnr_elems) { 1372 len += rnr_elems->elem[i].len; 1373 for (i = elems->cnt; i < rnr_elems->cnt; i++) 1374 len += rnr_elems->elem[i].len; 1375 } 1376 return len; 1377 } 1378 1379 /* i == elems->cnt, calculate total length of all MBSSID elements */ 1380 for (i = 0; i < elems->cnt; i++) 1381 len += elems->elem[i].len; 1382 1383 if (rnr_elems) { 1384 for (i = 0; i < rnr_elems->cnt; i++) 1385 len += rnr_elems->elem[i].len; 1386 } 1387 1388 return len; 1389 } 1390 1391 enum { 1392 IEEE80211_RX_MSG = 1, 1393 IEEE80211_TX_STATUS_MSG = 2, 1394 }; 1395 1396 enum queue_stop_reason { 1397 IEEE80211_QUEUE_STOP_REASON_DRIVER, 1398 IEEE80211_QUEUE_STOP_REASON_PS, 1399 IEEE80211_QUEUE_STOP_REASON_CSA, 1400 IEEE80211_QUEUE_STOP_REASON_AGGREGATION, 1401 IEEE80211_QUEUE_STOP_REASON_SUSPEND, 1402 IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 1403 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL, 1404 IEEE80211_QUEUE_STOP_REASON_FLUSH, 1405 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN, 1406 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID, 1407 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE, 1408 1409 IEEE80211_QUEUE_STOP_REASONS, 1410 }; 1411 1412 #ifdef CONFIG_MAC80211_LEDS 1413 struct tpt_led_trigger { 1414 char name[32]; 1415 const struct ieee80211_tpt_blink *blink_table; 1416 unsigned int blink_table_len; 1417 struct timer_list timer; 1418 struct ieee80211_local *local; 1419 unsigned long prev_traffic; 1420 unsigned long tx_bytes, rx_bytes; 1421 unsigned int active, want; 1422 bool running; 1423 }; 1424 #endif 1425 1426 /** 1427 * enum mac80211_scan_flags - currently active scan mode 1428 * 1429 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as 1430 * well be on the operating channel 1431 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to 1432 * determine if we are on the operating channel or not 1433 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating 1434 * channel. This should not interrupt normal traffic. 1435 * @SCAN_COMPLETED: Set for our scan work function when the driver reported 1436 * that the scan completed. 1437 * @SCAN_ABORTED: Set for our scan work function when the driver reported 1438 * a scan complete for an aborted scan. 1439 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being 1440 * cancelled. 1441 * @SCAN_BEACON_WAIT: Set whenever we're passive scanning because of radar/no-IR 1442 * and could send a probe request after receiving a beacon. 1443 * @SCAN_BEACON_DONE: Beacon received, we can now send a probe request 1444 */ 1445 enum mac80211_scan_flags { 1446 SCAN_SW_SCANNING, 1447 SCAN_HW_SCANNING, 1448 SCAN_ONCHANNEL_SCANNING, 1449 SCAN_COMPLETED, 1450 SCAN_ABORTED, 1451 SCAN_HW_CANCELLED, 1452 SCAN_BEACON_WAIT, 1453 SCAN_BEACON_DONE, 1454 }; 1455 1456 /** 1457 * enum mac80211_scan_state - scan state machine states 1458 * 1459 * @SCAN_DECISION: Main entry point to the scan state machine, this state 1460 * determines if we should keep on scanning or switch back to the 1461 * operating channel 1462 * @SCAN_SET_CHANNEL: Set the next channel to be scanned 1463 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses 1464 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to 1465 * send out data 1466 * @SCAN_RESUME: Resume the scan and scan the next channel 1467 * @SCAN_ABORT: Abort the scan and go back to operating channel 1468 */ 1469 enum mac80211_scan_state { 1470 SCAN_DECISION, 1471 SCAN_SET_CHANNEL, 1472 SCAN_SEND_PROBE, 1473 SCAN_SUSPEND, 1474 SCAN_RESUME, 1475 SCAN_ABORT, 1476 }; 1477 1478 DECLARE_STATIC_KEY_FALSE(aql_disable); 1479 1480 struct ieee80211_local { 1481 /* embed the driver visible part. 1482 * don't cast (use the static inlines below), but we keep 1483 * it first anyway so they become a no-op */ 1484 struct ieee80211_hw hw; 1485 1486 struct fq fq; 1487 struct codel_vars *cvars; 1488 struct codel_params cparams; 1489 1490 /* protects active_txqs and txqi->schedule_order */ 1491 spinlock_t active_txq_lock[IEEE80211_NUM_ACS]; 1492 struct list_head active_txqs[IEEE80211_NUM_ACS]; 1493 u16 schedule_round[IEEE80211_NUM_ACS]; 1494 bool schedule_open[IEEE80211_NUM_ACS]; 1495 1496 /* serializes ieee80211_handle_wake_tx_queue */ 1497 spinlock_t handle_wake_tx_queue_lock; 1498 1499 u16 airtime_flags; 1500 u32 aql_txq_limit_mc; 1501 u32 aql_txq_limit_low[IEEE80211_NUM_ACS]; 1502 u32 aql_txq_limit_high[IEEE80211_NUM_ACS]; 1503 u32 aql_threshold; 1504 atomic_t aql_total_pending_airtime; 1505 atomic_t aql_mc_pending_airtime; 1506 atomic_t aql_ac_pending_airtime[IEEE80211_NUM_ACS]; 1507 1508 const struct ieee80211_ops *ops; 1509 1510 /* 1511 * private workqueue to mac80211. mac80211 makes this accessible 1512 * via ieee80211_queue_work() 1513 */ 1514 struct workqueue_struct *workqueue; 1515 1516 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES]; 1517 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS]; 1518 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */ 1519 spinlock_t queue_stop_reason_lock; 1520 1521 int open_count; 1522 int monitors, virt_monitors, tx_mntrs; 1523 /* number of interfaces with corresponding FIF_ flags */ 1524 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll, 1525 fif_probe_req; 1526 bool probe_req_reg; 1527 bool rx_mcast_action_reg; 1528 unsigned int filter_flags; /* FIF_* */ 1529 1530 struct cfg80211_chan_def dflt_chandef; 1531 bool emulate_chanctx; 1532 1533 /* protects the aggregated multicast list and filter calls */ 1534 spinlock_t filter_lock; 1535 1536 /* used for uploading changed mc list */ 1537 struct wiphy_work reconfig_filter; 1538 1539 /* aggregated multicast list */ 1540 struct netdev_hw_addr_list mc_list; 1541 1542 bool tim_in_locked_section; /* see ieee80211_beacon_get() */ 1543 1544 /* 1545 * suspended is true if we finished all the suspend _and_ we have 1546 * not yet come up from resume. This is to be used by mac80211 1547 * to ensure driver sanity during suspend and mac80211's own 1548 * sanity. It can eventually be used for WoW as well. 1549 */ 1550 bool suspended; 1551 1552 /* suspending is true during the whole suspend process */ 1553 bool suspending; 1554 1555 /* 1556 * Resuming is true while suspended, but when we're reprogramming the 1557 * hardware -- at that time it's allowed to use ieee80211_queue_work() 1558 * again even though some other parts of the stack are still suspended 1559 * and we still drop received frames to avoid waking the stack. 1560 */ 1561 bool resuming; 1562 1563 /* 1564 * quiescing is true during the suspend process _only_ to 1565 * ease timer cancelling etc. 1566 */ 1567 bool quiescing; 1568 1569 /* device is started */ 1570 bool started; 1571 1572 /* device is during a HW reconfig */ 1573 bool in_reconfig; 1574 1575 /* reconfiguration failed ... suppress some warnings etc. */ 1576 bool reconfig_failure; 1577 1578 /* wowlan is enabled -- don't reconfig on resume */ 1579 bool wowlan; 1580 1581 struct wiphy_work radar_detected_work; 1582 1583 /* number of RX chains the hardware has */ 1584 u8 rx_chains; 1585 1586 /* bitmap of which sbands were copied */ 1587 u8 sband_allocated; 1588 1589 int tx_headroom; /* required headroom for hardware/radiotap */ 1590 1591 /* Tasklet and skb queue to process calls from IRQ mode. All frames 1592 * added to skb_queue will be processed, but frames in 1593 * skb_queue_unreliable may be dropped if the total length of these 1594 * queues increases over the limit. */ 1595 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128 1596 struct tasklet_struct tasklet; 1597 struct sk_buff_head skb_queue; 1598 struct sk_buff_head skb_queue_unreliable; 1599 1600 spinlock_t rx_path_lock; 1601 1602 /* Station data */ 1603 /* 1604 * The list, hash table and counter are protected 1605 * by the wiphy mutex, reads are done with RCU. 1606 */ 1607 spinlock_t tim_lock; 1608 unsigned long num_sta; 1609 struct list_head sta_list; 1610 struct rhltable sta_hash; 1611 struct rhltable link_sta_hash; 1612 struct timer_list sta_cleanup; 1613 int sta_generation; 1614 1615 struct sk_buff_head pending[IEEE80211_MAX_QUEUES]; 1616 struct tasklet_struct tx_pending_tasklet; 1617 struct tasklet_struct wake_txqs_tasklet; 1618 1619 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES]; 1620 1621 /* number of interfaces with allmulti RX */ 1622 atomic_t iff_allmultis; 1623 1624 struct rate_control_ref *rate_ctrl; 1625 1626 struct arc4_ctx wep_tx_ctx; 1627 struct arc4_ctx wep_rx_ctx; 1628 u32 wep_iv; 1629 1630 /* see iface.c */ 1631 struct list_head interfaces; 1632 struct list_head mon_list; /* only that are IFF_UP */ 1633 struct mutex iflist_mtx; 1634 1635 /* Scanning and BSS list */ 1636 unsigned long scanning; 1637 struct cfg80211_ssid scan_ssid; 1638 struct cfg80211_scan_request *int_scan_req; 1639 struct cfg80211_scan_request __rcu *scan_req; 1640 struct ieee80211_scan_request *hw_scan_req; 1641 struct cfg80211_chan_def scan_chandef; 1642 enum nl80211_band hw_scan_band; 1643 int scan_channel_idx; 1644 int scan_ies_len; 1645 int hw_scan_ies_bufsize; 1646 struct cfg80211_scan_info scan_info; 1647 1648 struct wiphy_work sched_scan_stopped_work; 1649 struct ieee80211_sub_if_data __rcu *sched_scan_sdata; 1650 struct cfg80211_sched_scan_request __rcu *sched_scan_req; 1651 u8 scan_addr[ETH_ALEN]; 1652 1653 unsigned long leave_oper_channel_time; 1654 enum mac80211_scan_state next_scan_state; 1655 struct wiphy_delayed_work scan_work; 1656 struct ieee80211_sub_if_data __rcu *scan_sdata; 1657 1658 /* Temporary remain-on-channel for off-channel operations */ 1659 struct ieee80211_channel *tmp_channel; 1660 1661 /* channel contexts */ 1662 struct list_head chanctx_list; 1663 1664 #ifdef CONFIG_MAC80211_LEDS 1665 struct led_trigger tx_led, rx_led, assoc_led, radio_led; 1666 struct led_trigger tpt_led; 1667 atomic_t tx_led_active, rx_led_active, assoc_led_active; 1668 atomic_t radio_led_active, tpt_led_active; 1669 struct tpt_led_trigger *tpt_led_trigger; 1670 #endif 1671 1672 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS 1673 /* SNMP counters */ 1674 /* dot11CountersTable */ 1675 u32 dot11TransmittedFragmentCount; 1676 u32 dot11MulticastTransmittedFrameCount; 1677 u32 dot11FailedCount; 1678 u32 dot11RetryCount; 1679 u32 dot11MultipleRetryCount; 1680 u32 dot11FrameDuplicateCount; 1681 u32 dot11ReceivedFragmentCount; 1682 u32 dot11MulticastReceivedFrameCount; 1683 u32 dot11TransmittedFrameCount; 1684 1685 /* TX/RX handler statistics */ 1686 unsigned int tx_handlers_queued; 1687 unsigned int tx_handlers_drop_wep; 1688 unsigned int tx_handlers_drop_not_assoc; 1689 unsigned int tx_handlers_drop_unauth_port; 1690 unsigned int rx_handlers_drop; 1691 unsigned int rx_handlers_queued; 1692 unsigned int rx_handlers_drop_nullfunc; 1693 unsigned int rx_handlers_drop_defrag; 1694 unsigned int tx_expand_skb_head; 1695 unsigned int tx_expand_skb_head_cloned; 1696 unsigned int rx_expand_skb_head_defrag; 1697 unsigned int rx_handlers_fragments; 1698 unsigned int tx_status_drop; 1699 #define I802_DEBUG_INC(c) (c)++ 1700 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */ 1701 #define I802_DEBUG_INC(c) do { } while (0) 1702 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */ 1703 1704 1705 int total_ps_buffered; /* total number of all buffered unicast and 1706 * multicast packets for power saving stations 1707 */ 1708 1709 bool pspolling; 1710 /* 1711 * PS can only be enabled when we have exactly one managed 1712 * interface (and monitors) in PS, this then points there. 1713 */ 1714 struct ieee80211_sub_if_data *ps_sdata; 1715 struct wiphy_work dynamic_ps_enable_work; 1716 struct wiphy_work dynamic_ps_disable_work; 1717 struct timer_list dynamic_ps_timer; 1718 struct notifier_block ifa_notifier; 1719 struct notifier_block ifa6_notifier; 1720 1721 /* 1722 * The dynamic ps timeout configured from user space via WEXT - 1723 * this will override whatever chosen by mac80211 internally. 1724 */ 1725 int dynamic_ps_forced_timeout; 1726 1727 int user_power_level; /* in dBm, for all interfaces */ 1728 1729 struct work_struct restart_work; 1730 1731 #ifdef CONFIG_MAC80211_DEBUGFS 1732 struct local_debugfsdentries { 1733 struct dentry *rcdir; 1734 struct dentry *keys; 1735 } debugfs; 1736 bool force_tx_status; 1737 #endif 1738 1739 /* 1740 * Remain-on-channel support 1741 */ 1742 struct wiphy_delayed_work roc_work; 1743 struct list_head roc_list; 1744 struct wiphy_work hw_roc_start, hw_roc_done; 1745 unsigned long hw_roc_start_time; 1746 struct idr ack_status_frames; 1747 spinlock_t ack_status_lock; 1748 1749 /* virtual monitor interface */ 1750 struct ieee80211_sub_if_data __rcu *monitor_sdata; 1751 struct ieee80211_chan_req monitor_chanreq; 1752 1753 /* extended capabilities provided by mac80211 */ 1754 u8 ext_capa[8]; 1755 1756 bool wbrf_supported; 1757 }; 1758 1759 static inline struct ieee80211_sub_if_data * 1760 IEEE80211_DEV_TO_SUB_IF(const struct net_device *dev) 1761 { 1762 return netdev_priv(dev); 1763 } 1764 1765 static inline struct ieee80211_sub_if_data * 1766 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev) 1767 { 1768 return container_of(wdev, struct ieee80211_sub_if_data, wdev); 1769 } 1770 1771 static inline struct ieee80211_supported_band * 1772 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata) 1773 { 1774 struct ieee80211_local *local = sdata->local; 1775 struct ieee80211_chanctx_conf *chanctx_conf; 1776 enum nl80211_band band; 1777 1778 WARN_ON(ieee80211_vif_is_mld(&sdata->vif)); 1779 1780 rcu_read_lock(); 1781 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); 1782 1783 if (!chanctx_conf) { 1784 rcu_read_unlock(); 1785 return NULL; 1786 } 1787 1788 band = chanctx_conf->def.chan->band; 1789 rcu_read_unlock(); 1790 1791 return local->hw.wiphy->bands[band]; 1792 } 1793 1794 static inline struct ieee80211_supported_band * 1795 ieee80211_get_link_sband(struct ieee80211_link_data *link) 1796 { 1797 struct ieee80211_local *local = link->sdata->local; 1798 struct ieee80211_chanctx_conf *chanctx_conf; 1799 enum nl80211_band band; 1800 1801 rcu_read_lock(); 1802 chanctx_conf = rcu_dereference(link->conf->chanctx_conf); 1803 if (!chanctx_conf) { 1804 rcu_read_unlock(); 1805 return NULL; 1806 } 1807 1808 band = chanctx_conf->def.chan->band; 1809 rcu_read_unlock(); 1810 1811 return local->hw.wiphy->bands[band]; 1812 } 1813 1814 /* this struct holds the value parsing from channel switch IE */ 1815 struct ieee80211_csa_ie { 1816 struct ieee80211_chan_req chanreq; 1817 u8 mode; 1818 u8 count; 1819 u8 ttl; 1820 u16 pre_value; 1821 u16 reason_code; 1822 u32 max_switch_time; 1823 }; 1824 1825 enum ieee80211_elems_parse_error { 1826 IEEE80211_PARSE_ERR_INVALID_END = BIT(0), 1827 IEEE80211_PARSE_ERR_DUP_ELEM = BIT(1), 1828 IEEE80211_PARSE_ERR_BAD_ELEM_SIZE = BIT(2), 1829 IEEE80211_PARSE_ERR_UNEXPECTED_ELEM = BIT(3), 1830 IEEE80211_PARSE_ERR_DUP_NEST_ML_BASIC = BIT(4), 1831 }; 1832 1833 /* Parsed Information Elements */ 1834 struct ieee802_11_elems { 1835 const u8 *ie_start; 1836 size_t total_len; 1837 u32 crc; 1838 u8 frame_type; 1839 bool from_ap; 1840 1841 /* pointers to IEs */ 1842 const struct ieee80211_tdls_lnkie *lnk_id; 1843 const struct ieee80211_ch_switch_timing *ch_sw_timing; 1844 const u8 *ext_capab; 1845 const u8 *ssid; 1846 const u8 *supp_rates; 1847 const u8 *ds_params; 1848 const struct ieee80211_tim_ie *tim; 1849 const u8 *rsn; 1850 const u8 *rsnx; 1851 const u8 *erp_info; 1852 const u8 *ext_supp_rates; 1853 const u8 *wmm_info; 1854 const u8 *wmm_param; 1855 const struct ieee80211_ht_cap *ht_cap_elem; 1856 const struct ieee80211_ht_operation *ht_operation; 1857 const struct ieee80211_vht_cap *vht_cap_elem; 1858 const struct ieee80211_vht_operation *vht_operation; 1859 const struct ieee80211_meshconf_ie *mesh_config; 1860 const u8 *he_cap; 1861 const struct ieee80211_he_operation *he_operation; 1862 const struct ieee80211_he_spr *he_spr; 1863 const struct ieee80211_mu_edca_param_set *mu_edca_param_set; 1864 const struct ieee80211_he_6ghz_capa *he_6ghz_capa; 1865 const u8 *uora_element; 1866 const u8 *mesh_id; 1867 const u8 *peering; 1868 const __le16 *awake_window; 1869 const u8 *preq; 1870 const u8 *prep; 1871 const u8 *perr; 1872 const struct ieee80211_rann_ie *rann; 1873 const struct ieee80211_channel_sw_ie *ch_switch_ie; 1874 const struct ieee80211_ext_chansw_ie *ext_chansw_ie; 1875 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie; 1876 const u8 *max_channel_switch_time; 1877 const u8 *country_elem; 1878 const u8 *pwr_constr_elem; 1879 const u8 *cisco_dtpc_elem; 1880 const struct ieee80211_timeout_interval_ie *timeout_int; 1881 const u8 *opmode_notif; 1882 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs; 1883 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie; 1884 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie; 1885 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie; 1886 const struct ieee80211_bssid_index *bssid_index; 1887 u8 max_bssid_indicator; 1888 u8 dtim_count; 1889 u8 dtim_period; 1890 const struct ieee80211_addba_ext_ie *addba_ext_ie; 1891 const struct ieee80211_s1g_cap *s1g_capab; 1892 const struct ieee80211_s1g_oper_ie *s1g_oper; 1893 const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat; 1894 const struct ieee80211_aid_response_ie *aid_resp; 1895 const struct ieee80211_eht_cap_elem *eht_cap; 1896 const struct ieee80211_eht_operation *eht_operation; 1897 const struct ieee80211_multi_link_elem *ml_basic; 1898 const struct ieee80211_multi_link_elem *ml_reconf; 1899 const struct ieee80211_multi_link_elem *ml_epcs; 1900 const struct ieee80211_bandwidth_indication *bandwidth_indication; 1901 const struct ieee80211_ttlm_elem *ttlm[IEEE80211_TTLM_MAX_CNT]; 1902 const struct ieee80211_uhr_cap *uhr_cap; 1903 const struct ieee80211_uhr_operation *uhr_operation; 1904 const struct ieee80211_cip_cap *cip_cap; 1905 1906 /* not the order in the psd values is per element, not per chandef */ 1907 struct ieee80211_parsed_tpe tpe; 1908 struct ieee80211_parsed_tpe csa_tpe; 1909 1910 /* length of them, respectively */ 1911 u8 ext_capab_len; 1912 u8 ssid_len; 1913 u8 supp_rates_len; 1914 u8 tim_len; 1915 u8 rsn_len; 1916 u8 rsnx_len; 1917 u8 ext_supp_rates_len; 1918 u8 wmm_info_len; 1919 u8 wmm_param_len; 1920 u8 he_cap_len; 1921 u8 mesh_id_len; 1922 u8 peering_len; 1923 u8 preq_len; 1924 u8 prep_len; 1925 u8 perr_len; 1926 u8 country_elem_len; 1927 u8 bssid_index_len; 1928 u8 eht_cap_len; 1929 u8 uhr_cap_len; 1930 u8 uhr_operation_len; 1931 1932 /* mult-link element can be de-fragmented and thus u8 is not sufficient */ 1933 size_t ml_basic_len; 1934 size_t ml_reconf_len; 1935 size_t ml_epcs_len; 1936 1937 u8 ttlm_num; 1938 1939 /* 1940 * store the per station profile pointer and length in case that the 1941 * parsing also handled Multi-Link element parsing for a specific link 1942 * ID. 1943 */ 1944 struct ieee80211_mle_per_sta_profile *prof; 1945 size_t sta_prof_len; 1946 1947 /* 1948 * When parsing the beacon with MBSSID (from a transmitted BSS), this 1949 * indicates that the profile the parser was instructed to look for 1950 * (via the bss value in &struct ieee80211_elems_parse_params) couldn't 1951 * be found (due to EMA, or perhaps broken AP) and the result cannot be 1952 * considered complete. 1953 */ 1954 bool mbssid_nontx_profile_missing; 1955 1956 /* whether/which parse error occurred while retrieving these elements */ 1957 u8 parse_error; 1958 }; 1959 1960 static inline struct ieee80211_local *hw_to_local( 1961 struct ieee80211_hw *hw) 1962 { 1963 return container_of(hw, struct ieee80211_local, hw); 1964 } 1965 1966 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq) 1967 { 1968 return container_of(txq, struct txq_info, txq); 1969 } 1970 1971 static inline bool txq_has_queue(struct ieee80211_txq *txq) 1972 { 1973 struct txq_info *txqi = to_txq_info(txq); 1974 1975 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets); 1976 } 1977 1978 static inline bool 1979 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status) 1980 { 1981 return status->flag & RX_FLAG_MACTIME; 1982 } 1983 1984 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata); 1985 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata); 1986 1987 void ieee80211_vif_block_queues_csa(struct ieee80211_sub_if_data *sdata); 1988 void ieee80211_vif_unblock_queues_csa(struct ieee80211_sub_if_data *sdata); 1989 1990 /* This function returns the number of multicast stations connected to this 1991 * interface. It returns -1 if that number is not tracked, that is for netdevs 1992 * not in AP or AP_VLAN mode or when using 4addr. 1993 */ 1994 static inline int 1995 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata) 1996 { 1997 if (sdata->vif.type == NL80211_IFTYPE_AP) 1998 return atomic_read(&sdata->u.ap.num_mcast_sta); 1999 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta) 2000 return atomic_read(&sdata->u.vlan.num_mcast_sta); 2001 return -1; 2002 } 2003 2004 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata) 2005 { 2006 return test_bit(SDATA_STATE_RUNNING, &sdata->state); 2007 } 2008 2009 int ieee80211_hw_config(struct ieee80211_local *local, int radio_idx, 2010 u32 changed); 2011 int ieee80211_hw_conf_chan(struct ieee80211_local *local); 2012 void ieee80211_hw_conf_init(struct ieee80211_local *local); 2013 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); 2014 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, 2015 u64 changed); 2016 void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata, 2017 u64 changed); 2018 void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata, 2019 struct ieee80211_link_data *link, 2020 u64 changed); 2021 void ieee80211_configure_filter(struct ieee80211_local *local); 2022 u64 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata); 2023 2024 void ieee80211_handle_queued_frames(struct ieee80211_local *local); 2025 2026 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 2027 u64 *cookie, gfp_t gfp); 2028 2029 void ieee80211_check_fast_rx(struct sta_info *sta); 2030 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata); 2031 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata); 2032 void ieee80211_clear_fast_rx(struct sta_info *sta); 2033 2034 bool ieee80211_is_our_addr(struct ieee80211_sub_if_data *sdata, 2035 const u8 *addr, int *out_link_id); 2036 2037 /* AP code */ 2038 void ieee80211_ap_rx_queued_frame(struct ieee80211_sub_if_data *sdata, 2039 struct sk_buff *skb); 2040 void ieee80211_uhr_disable_dbe_all_stas(struct ieee80211_link_data *link); 2041 2042 /* STA code */ 2043 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata); 2044 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, 2045 struct cfg80211_auth_request *req); 2046 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, 2047 struct cfg80211_assoc_request *req); 2048 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, 2049 struct cfg80211_deauth_request *req); 2050 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, 2051 struct cfg80211_disassoc_request *req); 2052 void ieee80211_send_pspoll(struct ieee80211_local *local, 2053 struct ieee80211_sub_if_data *sdata); 2054 void ieee80211_recalc_ps(struct ieee80211_local *local); 2055 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata); 2056 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata); 2057 void ieee80211_sta_rx_queued_frame(struct ieee80211_sub_if_data *sdata, 2058 struct sk_buff *skb); 2059 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata); 2060 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata); 2061 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata); 2062 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata, 2063 __le16 fc, bool acked); 2064 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata); 2065 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata); 2066 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata); 2067 void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, 2068 u8 reason, bool tx); 2069 void ieee80211_mgd_setup_link(struct ieee80211_link_data *link); 2070 void ieee80211_mgd_stop_link(struct ieee80211_link_data *link); 2071 void ieee80211_mgd_set_link_qos_params(struct ieee80211_link_data *link); 2072 2073 /* IBSS code */ 2074 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local); 2075 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata); 2076 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata, 2077 const u8 *bssid, const u8 *addr, u32 supp_rates); 2078 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, 2079 struct cfg80211_ibss_params *params); 2080 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata); 2081 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata); 2082 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 2083 struct sk_buff *skb); 2084 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata, 2085 struct cfg80211_csa_settings *csa_settings, 2086 u64 *changed); 2087 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata, 2088 u64 *changed); 2089 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata); 2090 2091 /* OCB code */ 2092 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata); 2093 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata, 2094 const u8 *bssid, const u8 *addr, u32 supp_rates); 2095 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata); 2096 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata, 2097 struct ocb_setup *setup); 2098 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata); 2099 2100 /* mesh code */ 2101 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata); 2102 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 2103 struct sk_buff *skb); 2104 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata, 2105 struct cfg80211_csa_settings *csa_settings, 2106 u64 *changed); 2107 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata, 2108 u64 *changed); 2109 2110 /* NAN code */ 2111 int ieee80211_nan_set_local_sched(struct ieee80211_sub_if_data *sdata, 2112 struct cfg80211_nan_local_sched *sched); 2113 int ieee80211_nan_set_peer_sched(struct ieee80211_sub_if_data *sdata, 2114 struct cfg80211_nan_peer_sched *sched); 2115 int ieee80211_nan_set_non_evac_channels(struct ieee80211_sub_if_data *sdata, 2116 struct cfg80211_nan_non_evac_channels *channels); 2117 void ieee80211_nan_free_peer_sched(struct ieee80211_nan_peer_sched *sched); 2118 void ieee80211_nan_update_ndi_carrier(struct ieee80211_sub_if_data *ndi_sdata); 2119 struct ieee80211_nan_channel * 2120 ieee80211_nan_find_evac_chan(struct ieee80211_local *local, 2121 struct ieee80211_sub_if_data *sdata, 2122 struct ieee80211_chanctx *ctx); 2123 void ieee80211_nan_evacuate_channel(struct ieee80211_sub_if_data *sdata, 2124 struct ieee80211_nan_channel *nan_channel); 2125 2126 static inline struct ieee80211_sub_if_data * 2127 ieee80211_find_nan_sdata(struct ieee80211_local *local) 2128 { 2129 struct ieee80211_sub_if_data *sdata; 2130 2131 lockdep_assert_wiphy(local->hw.wiphy); 2132 2133 /* Find the NAN interface - there can only be one */ 2134 list_for_each_entry(sdata, &local->interfaces, list) { 2135 if (ieee80211_sdata_running(sdata) && 2136 sdata->vif.type == NL80211_IFTYPE_NAN) 2137 return sdata; 2138 } 2139 2140 return NULL; 2141 } 2142 2143 /* scan/BSS handling */ 2144 void ieee80211_scan_work(struct wiphy *wiphy, struct wiphy_work *work); 2145 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata, 2146 const u8 *ssid, u8 ssid_len, 2147 struct ieee80211_channel **channels, 2148 unsigned int n_channels); 2149 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, 2150 struct cfg80211_scan_request *req); 2151 void ieee80211_scan_cancel(struct ieee80211_local *local); 2152 void ieee80211_run_deferred_scan(struct ieee80211_local *local); 2153 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb); 2154 2155 void ieee80211_inform_bss(struct wiphy *wiphy, struct cfg80211_bss *bss, 2156 const struct cfg80211_bss_ies *ies, void *data); 2157 2158 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local); 2159 struct ieee80211_bss * 2160 ieee80211_bss_info_update(struct ieee80211_local *local, 2161 struct ieee80211_rx_status *rx_status, 2162 struct ieee80211_mgmt *mgmt, 2163 size_t len, 2164 struct ieee80211_channel *channel); 2165 void ieee80211_rx_bss_put(struct ieee80211_local *local, 2166 struct ieee80211_bss *bss); 2167 2168 /* scheduled scan handling */ 2169 int 2170 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, 2171 struct cfg80211_sched_scan_request *req); 2172 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, 2173 struct cfg80211_sched_scan_request *req); 2174 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local); 2175 void ieee80211_sched_scan_end(struct ieee80211_local *local); 2176 void ieee80211_sched_scan_stopped_work(struct wiphy *wiphy, 2177 struct wiphy_work *work); 2178 2179 /* off-channel/mgmt-tx */ 2180 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local); 2181 void ieee80211_offchannel_return(struct ieee80211_local *local); 2182 void ieee80211_roc_setup(struct ieee80211_local *local); 2183 void ieee80211_start_next_roc(struct ieee80211_local *local); 2184 void ieee80211_reconfig_roc(struct ieee80211_local *local); 2185 void ieee80211_roc_purge(struct ieee80211_local *local, 2186 struct ieee80211_sub_if_data *sdata); 2187 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev, 2188 struct ieee80211_channel *chan, 2189 unsigned int duration, u64 cookie, 2190 const u8 *rx_addr); 2191 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, 2192 struct wireless_dev *wdev, u64 cookie); 2193 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 2194 struct cfg80211_mgmt_tx_params *params, u64 cookie); 2195 int ieee80211_mgmt_tx_unlocked(struct wiphy *wiphy, struct wireless_dev *wdev, 2196 struct cfg80211_mgmt_tx_params *params, 2197 u64 cookie); 2198 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, 2199 struct wireless_dev *wdev, u64 cookie); 2200 2201 /* channel switch handling */ 2202 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work); 2203 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 2204 struct cfg80211_csa_settings *params); 2205 2206 /* color change handling */ 2207 void ieee80211_color_change_finalize_work(struct wiphy *wiphy, 2208 struct wiphy_work *work); 2209 void ieee80211_color_collision_detection_work(struct wiphy *wiphy, 2210 struct wiphy_work *work); 2211 2212 /* interface handling */ 2213 #define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \ 2214 NETIF_F_HW_CSUM | NETIF_F_SG | \ 2215 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE | \ 2216 NETIF_F_HW_TC) 2217 #define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM) 2218 #define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \ 2219 MAC80211_SUPPORTED_FEATURES_RX) 2220 2221 int ieee80211_iface_init(void); 2222 void ieee80211_iface_exit(void); 2223 int ieee80211_if_add(struct ieee80211_local *local, const char *name, 2224 unsigned char name_assign_type, 2225 struct wireless_dev **new_wdev, enum nl80211_iftype type, 2226 struct vif_params *params); 2227 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, 2228 enum nl80211_iftype type); 2229 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata); 2230 void ieee80211_remove_interfaces(struct ieee80211_local *local); 2231 u32 ieee80211_idle_off(struct ieee80211_local *local); 2232 void ieee80211_recalc_idle(struct ieee80211_local *local); 2233 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata, 2234 const int offset); 2235 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up); 2236 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata); 2237 int ieee80211_add_virtual_monitor(struct ieee80211_local *local, 2238 struct ieee80211_sub_if_data *creator_sdata); 2239 void ieee80211_del_virtual_monitor(struct ieee80211_local *local); 2240 2241 bool __ieee80211_recalc_txpower(struct ieee80211_link_data *link); 2242 void ieee80211_recalc_txpower(struct ieee80211_link_data *link, 2243 bool update_bss); 2244 void ieee80211_recalc_offload(struct ieee80211_local *local); 2245 2246 /* link handling */ 2247 void ieee80211_link_setup(struct ieee80211_link_data *link); 2248 void ieee80211_link_init(struct ieee80211_sub_if_data *sdata, 2249 int link_id, 2250 struct ieee80211_link_data *link, 2251 struct ieee80211_bss_conf *link_conf); 2252 void ieee80211_link_stop(struct ieee80211_link_data *link); 2253 int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata, 2254 u16 new_links, u16 dormant_links); 2255 static inline void ieee80211_vif_clear_links(struct ieee80211_sub_if_data *sdata) 2256 { 2257 ieee80211_vif_set_links(sdata, 0, 0); 2258 } 2259 2260 void ieee80211_apvlan_link_setup(struct ieee80211_sub_if_data *sdata); 2261 void ieee80211_apvlan_link_clear(struct ieee80211_sub_if_data *sdata); 2262 2263 /* tx handling */ 2264 void ieee80211_clear_tx_pending(struct ieee80211_local *local); 2265 void ieee80211_tx_pending(struct tasklet_struct *t); 2266 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb, 2267 struct net_device *dev); 2268 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, 2269 struct net_device *dev); 2270 netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb, 2271 struct net_device *dev); 2272 void __ieee80211_subif_start_xmit(struct sk_buff *skb, 2273 struct net_device *dev, 2274 u32 info_flags, 2275 u32 ctrl_flags); 2276 struct sk_buff * 2277 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata, 2278 struct sk_buff *skb, u32 info_flags); 2279 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb, 2280 int retry_count, struct ieee80211_tx_status *status); 2281 2282 void ieee80211_check_fast_xmit(struct sta_info *sta); 2283 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local); 2284 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata); 2285 void ieee80211_clear_fast_xmit(struct sta_info *sta); 2286 int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev, 2287 const u8 *buf, size_t len, 2288 const u8 *dest, __be16 proto, bool unencrypted, 2289 int link_id, u64 cookie); 2290 int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev, 2291 const u8 *buf, size_t len); 2292 void __ieee80211_xmit_fast(struct ieee80211_sub_if_data *sdata, 2293 struct sta_info *sta, 2294 struct ieee80211_fast_tx *fast_tx, 2295 struct sk_buff *skb, bool ampdu, 2296 const u8 *da, const u8 *sa); 2297 void ieee80211_aggr_check(struct ieee80211_sub_if_data *sdata, 2298 struct sta_info *sta, struct sk_buff *skb); 2299 2300 /* HT */ 2301 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, 2302 struct ieee80211_sta_ht_cap *ht_cap); 2303 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, 2304 const struct ieee80211_sta_ht_cap *own_cap, 2305 const struct ieee80211_ht_cap *ht_cap_ie, 2306 struct link_sta_info *link_sta); 2307 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, 2308 const u8 *da, u16 tid, 2309 u16 initiator, u16 reason_code, 2310 bool use_ndp); 2311 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata, 2312 enum ieee80211_smps_mode smps, const u8 *da, 2313 const u8 *bssid, int link_id); 2314 void ieee80211_add_addbaext(struct sk_buff *skb, 2315 const u8 req_addba_ext_data, 2316 u16 buf_size); 2317 u8 ieee80211_retrieve_addba_ext_data(struct sta_info *sta, 2318 const void *elem_data, ssize_t elem_len, 2319 u16 *buf_size); 2320 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, 2321 u16 initiator, u16 reason, bool stop); 2322 void __ieee80211_start_rx_ba_session(struct sta_info *sta, 2323 u8 dialog_token, u16 timeout, 2324 u16 start_seq_num, u16 ba_policy, u16 tid, 2325 u16 buf_size, bool tx, bool auto_seq, 2326 bool req_ndp, 2327 const u8 addba_ext_data); 2328 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, 2329 enum ieee80211_agg_stop_reason reason); 2330 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, 2331 struct sta_info *sta, 2332 struct ieee80211_mgmt *mgmt, size_t len); 2333 void ieee80211_process_addba_resp(struct ieee80211_local *local, 2334 struct sta_info *sta, 2335 struct ieee80211_mgmt *mgmt, 2336 size_t len); 2337 void ieee80211_process_addba_request(struct ieee80211_local *local, 2338 struct sta_info *sta, 2339 struct ieee80211_mgmt *mgmt, 2340 size_t len); 2341 2342 static inline struct ieee80211_mgmt * 2343 ieee80211_mgmt_ba(struct sk_buff *skb, const u8 *da, 2344 struct ieee80211_sub_if_data *sdata) 2345 { 2346 struct ieee80211_mgmt *mgmt = skb_put_zero(skb, 24); 2347 2348 ether_addr_copy(mgmt->da, da); 2349 ether_addr_copy(mgmt->sa, sdata->vif.addr); 2350 2351 if (sdata->vif.type == NL80211_IFTYPE_AP || 2352 sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 2353 sdata->vif.type == NL80211_IFTYPE_MESH_POINT) 2354 ether_addr_copy(mgmt->bssid, sdata->vif.addr); 2355 else if (sdata->vif.type == NL80211_IFTYPE_STATION) 2356 ether_addr_copy(mgmt->bssid, sdata->vif.cfg.ap_addr); 2357 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) 2358 ether_addr_copy(mgmt->bssid, sdata->u.ibss.bssid); 2359 2360 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 2361 IEEE80211_STYPE_ACTION); 2362 return mgmt; 2363 } 2364 2365 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, 2366 enum ieee80211_agg_stop_reason reason); 2367 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid, 2368 struct tid_ampdu_tx *tid_tx); 2369 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid, 2370 struct tid_ampdu_tx *tid_tx); 2371 void ieee80211_ba_session_work(struct wiphy *wiphy, struct wiphy_work *work); 2372 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid); 2373 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid); 2374 2375 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs); 2376 enum nl80211_smps_mode 2377 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps); 2378 2379 void ieee80211_ht_handle_chanwidth_notif(struct ieee80211_local *local, 2380 struct ieee80211_sub_if_data *sdata, 2381 struct sta_info *sta, 2382 struct link_sta_info *link_sta, 2383 u8 chanwidth, enum nl80211_band band); 2384 2385 /* VHT */ 2386 void 2387 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, 2388 struct ieee80211_supported_band *sband, 2389 const struct ieee80211_sta_vht_cap *own_vht_cap, 2390 const struct ieee80211_vht_cap *vht_cap_ie, 2391 const struct ieee80211_vht_cap *vht_cap_ie2, 2392 struct link_sta_info *link_sta); 2393 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata, 2394 struct ieee80211_link_data *link, 2395 struct ieee80211_mgmt *mgmt); 2396 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, 2397 struct link_sta_info *sta, 2398 u8 opmode, enum nl80211_band band); 2399 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, 2400 struct link_sta_info *sta, 2401 u8 opmode, enum nl80211_band band); 2402 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata, 2403 struct ieee80211_sta_vht_cap *vht_cap); 2404 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap, 2405 u16 vht_mask[NL80211_VHT_NSS_MAX]); 2406 2407 /* HE */ 2408 void 2409 _ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata, 2410 const struct ieee80211_sta_he_cap *own_he_cap, 2411 const u8 *he_cap_ie, u8 he_cap_len, 2412 const struct ieee80211_he_6ghz_capa *he_6ghz_capa, 2413 struct link_sta_info *link_sta); 2414 void 2415 ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata, 2416 struct ieee80211_supported_band *sband, 2417 const u8 *he_cap_ie, u8 he_cap_len, 2418 const struct ieee80211_he_6ghz_capa *he_6ghz_capa, 2419 struct link_sta_info *link_sta); 2420 void 2421 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif, 2422 const struct ieee80211_he_spr *he_spr_ie_elem); 2423 2424 void 2425 ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif, 2426 const struct ieee80211_he_operation *he_op_ie_elem); 2427 2428 /* S1G */ 2429 bool ieee80211_s1g_is_twt_setup(struct sk_buff *skb); 2430 void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata, 2431 struct sk_buff *skb); 2432 void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata, 2433 struct sk_buff *skb); 2434 void ieee80211_s1g_cap_to_sta_s1g_cap(struct ieee80211_sub_if_data *sdata, 2435 const struct ieee80211_s1g_cap *s1g_cap_ie, 2436 struct link_sta_info *link_sta); 2437 bool ieee80211_s1g_use_ndp_ba(const struct ieee80211_sub_if_data *sdata, 2438 const struct sta_info *sta); 2439 2440 /* Spectrum management */ 2441 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, 2442 struct ieee80211_mgmt *mgmt, 2443 size_t len); 2444 /** 2445 * ieee80211_parse_ch_switch_ie - parses channel switch IEs 2446 * @sdata: the sdata of the interface which has received the frame 2447 * @elems: parsed 802.11 elements received with the frame 2448 * @current_band: indicates the current band 2449 * @vht_cap_info: VHT capabilities of the transmitter 2450 * @conn: contains information about own capabilities and restrictions 2451 * to decide which channel switch announcements can be accepted 2452 * @bssid: the currently connected bssid (for reporting) 2453 * @unprot_action: whether the frame was an unprotected frame or not, 2454 * used for reporting 2455 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl. 2456 * All of them will be filled with if success only. 2457 * Return: 0 on success, <0 on error and >0 if there is nothing to parse. 2458 */ 2459 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata, 2460 struct ieee802_11_elems *elems, 2461 enum nl80211_band current_band, 2462 u32 vht_cap_info, 2463 struct ieee80211_conn_settings *conn, 2464 u8 *bssid, bool unprot_action, 2465 struct ieee80211_csa_ie *csa_ie); 2466 2467 /* Suspend/resume and hw reconfiguration */ 2468 int ieee80211_reconfig(struct ieee80211_local *local); 2469 void ieee80211_stop_device(struct ieee80211_local *local, bool suspend); 2470 2471 int __ieee80211_suspend(struct ieee80211_hw *hw, 2472 struct cfg80211_wowlan *wowlan, bool reset); 2473 2474 static inline int __ieee80211_resume(struct ieee80211_hw *hw) 2475 { 2476 struct ieee80211_local *local = hw_to_local(hw); 2477 2478 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) && 2479 !test_bit(SCAN_COMPLETED, &local->scanning), 2480 "%s: resume with hardware scan still in progress\n", 2481 wiphy_name(hw->wiphy)); 2482 2483 return ieee80211_reconfig(hw_to_local(hw)); 2484 } 2485 2486 /* utility functions/constants */ 2487 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */ 2488 const char *ieee80211_conn_mode_str(enum ieee80211_conn_mode mode); 2489 enum ieee80211_conn_bw_limit 2490 ieee80211_min_bw_limit_from_chandef(struct cfg80211_chan_def *chandef); 2491 int ieee80211_frame_duration(enum nl80211_band band, size_t len, 2492 int rate, int erp, int short_preamble); 2493 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, 2494 struct ieee80211_tx_queue_params *qparam, 2495 int ac); 2496 void ieee80211_clear_tpe(struct ieee80211_parsed_tpe *tpe); 2497 void ieee80211_set_wmm_default(struct ieee80211_link_data *link, 2498 bool bss_notify, bool enable_qos); 2499 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, 2500 struct sta_info *sta, struct sk_buff *skb); 2501 2502 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, 2503 struct sk_buff *skb, struct sta_info *sta, 2504 int tid, int link_id, 2505 enum nl80211_band band); 2506 2507 static inline bool ieee80211_require_encrypted_assoc(__le16 fc, 2508 struct sta_info *sta) 2509 { 2510 return sta && sta->sta.epp_peer && ieee80211_is_assoc(fc); 2511 } 2512 2513 static inline void 2514 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, 2515 struct sk_buff *skb, int tid, 2516 enum nl80211_band band) 2517 { 2518 rcu_read_lock(); 2519 __ieee80211_tx_skb_tid_band(sdata, skb, ERR_PTR(-ENOENT), 2520 tid, -1, band); 2521 rcu_read_unlock(); 2522 } 2523 2524 void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata, 2525 struct sk_buff *skb, struct sta_info *sta, 2526 int tid, int link_id); 2527 2528 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, 2529 struct sk_buff *skb) 2530 { 2531 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */ 2532 ieee80211_tx_skb_tid(sdata, skb, NULL, 7, -1); 2533 } 2534 2535 /** 2536 * struct ieee80211_elems_parse_params - element parsing parameters 2537 * @mode: connection mode for parsing 2538 * @start: pointer to the elements 2539 * @len: length of the elements 2540 * @type: type of the frame the elements came from 2541 * (action, probe response, beacon, etc.) 2542 * @filter: bitmap of element IDs to filter out while calculating 2543 * the element CRC 2544 * @crc: CRC starting value 2545 * @bss: the BSS to parse this as, for multi-BSSID cases this can 2546 * represent a non-transmitting BSS in which case the data 2547 * for that non-transmitting BSS is returned 2548 * @link_id: the link ID to parse elements for, if a STA profile 2549 * is present in the multi-link element, or -1 to ignore; 2550 * note that the code currently assumes parsing an association 2551 * (or re-association) response frame if this is given 2552 * @from_ap: frame is received from an AP (currently used only 2553 * for EHT capabilities parsing) 2554 */ 2555 struct ieee80211_elems_parse_params { 2556 enum ieee80211_conn_mode mode; 2557 const u8 *start; 2558 size_t len; 2559 u8 type; 2560 u64 filter; 2561 u32 crc; 2562 struct cfg80211_bss *bss; 2563 int link_id; 2564 bool from_ap; 2565 }; 2566 2567 struct ieee802_11_elems * 2568 ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params); 2569 2570 static inline struct ieee802_11_elems * 2571 ieee802_11_parse_elems(const u8 *start, size_t len, u8 type, 2572 struct cfg80211_bss *bss) 2573 { 2574 struct ieee80211_elems_parse_params params = { 2575 .mode = IEEE80211_CONN_MODE_HIGHEST, 2576 .start = start, 2577 .len = len, 2578 .type = type, 2579 .bss = bss, 2580 .link_id = -1, 2581 }; 2582 2583 return ieee802_11_parse_elems_full(¶ms); 2584 } 2585 2586 extern const int ieee802_1d_to_ac[8]; 2587 2588 static inline int ieee80211_ac_from_tid(int tid) 2589 { 2590 return ieee802_1d_to_ac[tid & 7]; 2591 } 2592 2593 void ieee80211_dynamic_ps_enable_work(struct wiphy *wiphy, 2594 struct wiphy_work *work); 2595 void ieee80211_dynamic_ps_disable_work(struct wiphy *wiphy, 2596 struct wiphy_work *work); 2597 void ieee80211_dynamic_ps_timer(struct timer_list *t); 2598 void ieee80211_send_nullfunc(struct ieee80211_local *local, 2599 struct ieee80211_sub_if_data *sdata, 2600 bool powersave); 2601 void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local, 2602 struct ieee80211_sub_if_data *sdata); 2603 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata, 2604 struct ieee80211_hdr *hdr, bool ack, u16 tx_time); 2605 unsigned int 2606 ieee80211_get_vif_queues(struct ieee80211_local *local, 2607 struct ieee80211_sub_if_data *sdata); 2608 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, 2609 unsigned long queues, 2610 enum queue_stop_reason reason, 2611 bool refcounted); 2612 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, 2613 unsigned long queues, 2614 enum queue_stop_reason reason, 2615 bool refcounted); 2616 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, 2617 enum queue_stop_reason reason, 2618 bool refcounted); 2619 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, 2620 enum queue_stop_reason reason, 2621 bool refcounted); 2622 static inline void 2623 ieee80211_stop_vif_queues(struct ieee80211_local *local, 2624 struct ieee80211_sub_if_data *sdata, 2625 enum queue_stop_reason reason) 2626 { 2627 ieee80211_stop_queues_by_reason(&local->hw, 2628 ieee80211_get_vif_queues(local, sdata), 2629 reason, true); 2630 } 2631 2632 static inline void 2633 ieee80211_wake_vif_queues(struct ieee80211_local *local, 2634 struct ieee80211_sub_if_data *sdata, 2635 enum queue_stop_reason reason) 2636 { 2637 ieee80211_wake_queues_by_reason(&local->hw, 2638 ieee80211_get_vif_queues(local, sdata), 2639 reason, true); 2640 } 2641 static inline void 2642 ieee80211_stop_vif_queues_norefcount(struct ieee80211_local *local, 2643 struct ieee80211_sub_if_data *sdata, 2644 enum queue_stop_reason reason) 2645 { 2646 ieee80211_stop_queues_by_reason(&local->hw, 2647 ieee80211_get_vif_queues(local, sdata), 2648 reason, false); 2649 } 2650 static inline void 2651 ieee80211_wake_vif_queues_norefcount(struct ieee80211_local *local, 2652 struct ieee80211_sub_if_data *sdata, 2653 enum queue_stop_reason reason) 2654 { 2655 ieee80211_wake_queues_by_reason(&local->hw, 2656 ieee80211_get_vif_queues(local, sdata), 2657 reason, false); 2658 } 2659 void ieee80211_add_pending_skb(struct ieee80211_local *local, 2660 struct sk_buff *skb); 2661 void ieee80211_add_pending_skbs(struct ieee80211_local *local, 2662 struct sk_buff_head *skbs); 2663 void ieee80211_flush_queues(struct ieee80211_local *local, 2664 struct ieee80211_sub_if_data *sdata, bool drop); 2665 void __ieee80211_flush_queues(struct ieee80211_local *local, 2666 struct ieee80211_sub_if_data *sdata, 2667 unsigned int queues, bool drop); 2668 2669 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local) 2670 { 2671 /* 2672 * It's unsafe to try to do any work during reconfigure flow. 2673 * When the flow ends the work will be requeued. 2674 */ 2675 if (local->in_reconfig) 2676 return false; 2677 2678 /* 2679 * If quiescing is set, we are racing with __ieee80211_suspend. 2680 * __ieee80211_suspend flushes the workers after setting quiescing, 2681 * and we check quiescing / suspended before enqueuing new workers. 2682 * We should abort the worker to avoid the races below. 2683 */ 2684 if (local->quiescing) 2685 return false; 2686 2687 /* 2688 * We might already be suspended if the following scenario occurs: 2689 * __ieee80211_suspend Control path 2690 * 2691 * if (local->quiescing) 2692 * return; 2693 * local->quiescing = true; 2694 * flush_workqueue(); 2695 * queue_work(...); 2696 * local->suspended = true; 2697 * local->quiescing = false; 2698 * worker starts running... 2699 */ 2700 if (local->suspended) 2701 return false; 2702 2703 return true; 2704 } 2705 2706 int ieee80211_txq_setup_flows(struct ieee80211_local *local); 2707 void ieee80211_txq_set_params(struct ieee80211_local *local, int radio_idx); 2708 void ieee80211_txq_teardown_flows(struct ieee80211_local *local); 2709 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata, 2710 struct sta_info *sta, 2711 struct txq_info *txq, int tid); 2712 void ieee80211_txq_purge(struct ieee80211_local *local, 2713 struct txq_info *txqi); 2714 void ieee80211_purge_sta_txqs(struct sta_info *sta); 2715 void ieee80211_txq_remove_vlan(struct ieee80211_local *local, 2716 struct ieee80211_sub_if_data *sdata); 2717 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 2718 struct txq_info *txqi); 2719 void ieee80211_wake_txqs(struct tasklet_struct *t); 2720 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, 2721 u16 transaction, u16 auth_alg, u16 status, 2722 const u8 *extra, size_t extra_len, const u8 *bssid, 2723 const u8 *da, const u8 *key, u8 key_len, u8 key_idx, 2724 u32 tx_flags); 2725 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, 2726 const u8 *da, const u8 *bssid, 2727 u16 stype, u16 reason, 2728 bool send_frame, u8 *frame_buf); 2729 2730 enum { 2731 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0), 2732 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1), 2733 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2), 2734 }; 2735 2736 int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer, 2737 size_t buffer_len, 2738 struct ieee80211_scan_ies *ie_desc, 2739 const u8 *ie, size_t ie_len, 2740 u8 bands_used, u32 *rate_masks, 2741 struct cfg80211_chan_def *chandef, 2742 u32 flags); 2743 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, 2744 const u8 *src, const u8 *dst, 2745 u32 ratemask, 2746 struct ieee80211_channel *chan, 2747 const u8 *ssid, size_t ssid_len, 2748 const u8 *ie, size_t ie_len, 2749 u32 flags); 2750 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, 2751 struct ieee802_11_elems *elems, 2752 enum nl80211_band band, u32 *basic_rates); 2753 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2754 struct ieee80211_link_data *link, 2755 enum ieee80211_smps_mode smps_mode); 2756 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata, 2757 struct ieee80211_link_data *link); 2758 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata, 2759 int link_id); 2760 2761 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset); 2762 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 2763 u16 cap); 2764 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 2765 const struct cfg80211_chan_def *chandef, 2766 u16 prot_mode, bool rifs_mode); 2767 void ieee80211_ie_build_wide_bw_cs(u8 *pos, 2768 const struct cfg80211_chan_def *chandef); 2769 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2770 u32 cap); 2771 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2772 const struct cfg80211_chan_def *chandef); 2773 u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata); 2774 u8 *ieee80211_ie_build_he_oper(u8 *pos, const struct cfg80211_chan_def *chandef); 2775 u8 *ieee80211_ie_build_eht_oper(u8 *pos, const struct cfg80211_chan_def *chandef, 2776 const struct ieee80211_sta_eht_cap *eht_cap); 2777 int ieee80211_parse_bitrates(const struct ieee80211_supported_band *sband, 2778 const u8 *srates, int srates_len, u32 *rates); 2779 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo); 2780 void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata, 2781 struct ieee80211_sta_s1g_cap *caps, 2782 struct sk_buff *skb); 2783 void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata, 2784 struct sk_buff *skb); 2785 2786 enum nl80211_chan_width 2787 ieee80211_sta_rx_bw_to_chan_width(enum ieee80211_sta_rx_bandwidth bw); 2788 2789 /* element building in SKBs */ 2790 int ieee80211_put_srates_elem(struct sk_buff *skb, 2791 const struct ieee80211_supported_band *sband, 2792 u32 basic_rates, u32 masked_rates, 2793 u8 element_id); 2794 int ieee80211_put_he_cap(struct sk_buff *skb, 2795 struct ieee80211_sub_if_data *sdata, 2796 const struct ieee80211_supported_band *sband, 2797 const struct ieee80211_conn_settings *conn); 2798 int ieee80211_put_he_6ghz_cap(struct sk_buff *skb, 2799 struct ieee80211_sub_if_data *sdata, 2800 enum ieee80211_smps_mode smps_mode); 2801 int ieee80211_put_eht_cap(struct sk_buff *skb, 2802 struct ieee80211_sub_if_data *sdata, 2803 const struct ieee80211_supported_band *sband, 2804 const struct ieee80211_conn_settings *conn); 2805 int ieee80211_put_uhr_cap(struct sk_buff *skb, 2806 struct ieee80211_sub_if_data *sdata, 2807 const struct ieee80211_supported_band *sband); 2808 void ieee80211_put_reg_conn(struct ieee80211_sub_if_data *sdata, 2809 struct sk_buff *skb); 2810 int ieee80211_put_cip_cap(struct sk_buff *skb, 2811 struct ieee80211_sub_if_data *sdata); 2812 2813 /* channel management */ 2814 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper, 2815 struct cfg80211_chan_def *chandef); 2816 bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info, 2817 const struct ieee80211_vht_operation *oper, 2818 const struct ieee80211_ht_operation *htop, 2819 struct cfg80211_chan_def *chandef); 2820 void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation_info *info, 2821 struct cfg80211_chan_def *chandef); 2822 bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_local *local, 2823 const struct ieee80211_he_operation *he_oper, 2824 const struct ieee80211_eht_operation *eht_oper, 2825 struct cfg80211_chan_def *chandef); 2826 bool ieee80211_chandef_s1g_oper(struct ieee80211_local *local, 2827 const struct ieee80211_s1g_oper_ie *oper, 2828 struct cfg80211_chan_def *chandef); 2829 void ieee80211_chandef_downgrade(struct cfg80211_chan_def *chandef, 2830 struct ieee80211_conn_settings *conn); 2831 static inline void 2832 ieee80211_chanreq_downgrade(struct ieee80211_chan_req *chanreq, 2833 struct ieee80211_conn_settings *conn) 2834 { 2835 ieee80211_chandef_downgrade(&chanreq->oper, conn); 2836 if (WARN_ON(!conn)) 2837 return; 2838 if (conn->mode < IEEE80211_CONN_MODE_EHT) 2839 chanreq->ap.chan = NULL; 2840 conn->dbe_enabled = false; 2841 } 2842 2843 bool ieee80211_chanreq_identical(const struct ieee80211_chan_req *a, 2844 const struct ieee80211_chan_req *b); 2845 2846 int __must_check 2847 _ieee80211_link_use_channel(struct ieee80211_link_data *link, 2848 const struct ieee80211_chan_req *req, 2849 enum ieee80211_chanctx_mode mode, 2850 bool assign_on_failure); 2851 2852 static inline int __must_check 2853 ieee80211_link_use_channel(struct ieee80211_link_data *link, 2854 const struct ieee80211_chan_req *req, 2855 enum ieee80211_chanctx_mode mode) 2856 { 2857 return _ieee80211_link_use_channel(link, req, mode, false); 2858 } 2859 2860 int __must_check 2861 ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link, 2862 const struct ieee80211_chan_req *req, 2863 enum ieee80211_chanctx_mode mode, 2864 bool radar_required); 2865 int __must_check 2866 ieee80211_link_use_reserved_context(struct ieee80211_link_data *link); 2867 void ieee80211_link_unreserve_chanctx(struct ieee80211_link_data *link); 2868 2869 int __must_check 2870 ieee80211_link_change_chanreq(struct ieee80211_link_data *link, 2871 const struct ieee80211_chan_req *req, 2872 u64 *changed); 2873 void __ieee80211_link_release_channel(struct ieee80211_link_data *link, 2874 bool skip_idle_recalc); 2875 void ieee80211_link_release_channel(struct ieee80211_link_data *link); 2876 void ieee80211_link_vlan_copy_chanctx(struct ieee80211_link_data *link); 2877 void ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link, 2878 bool clear); 2879 int ieee80211_chanctx_refcount(struct ieee80211_local *local, 2880 struct ieee80211_chanctx *ctx); 2881 2882 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local, 2883 struct ieee80211_chanctx *chanctx); 2884 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local, 2885 struct ieee80211_chanctx *ctx); 2886 bool ieee80211_is_radar_required(struct ieee80211_local *local, 2887 struct cfg80211_scan_request *req); 2888 bool ieee80211_is_radio_idx_in_scan_req(struct wiphy *wiphy, 2889 struct cfg80211_scan_request *scan_req, 2890 int radio_idx); 2891 2892 void ieee80211_dfs_cac_timer_work(struct wiphy *wiphy, struct wiphy_work *work); 2893 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local, 2894 struct ieee80211_chanctx *chanctx); 2895 void ieee80211_dfs_radar_detected_work(struct wiphy *wiphy, 2896 struct wiphy_work *work); 2897 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, 2898 struct cfg80211_csa_settings *csa_settings); 2899 void ieee80211_recalc_sb_count(struct ieee80211_sub_if_data *sdata, u64 tsf); 2900 void ieee80211_recalc_dtim(struct ieee80211_sub_if_data *sdata, u64 tsf); 2901 2902 struct ieee80211_check_combinations_data { 2903 const struct cfg80211_chan_def *chandef; 2904 enum ieee80211_chanctx_mode chanmode; 2905 u8 radar_detect; 2906 int radio_idx; 2907 bool (*chanctx_filter)(struct ieee80211_chanctx *ctx, 2908 void *filter_data); 2909 void *filter_data; 2910 }; 2911 2912 int ieee80211_check_combinations_ext(struct ieee80211_sub_if_data *sdata, 2913 struct ieee80211_check_combinations_data *data); 2914 2915 static inline int 2916 ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, 2917 const struct cfg80211_chan_def *chandef, 2918 enum ieee80211_chanctx_mode chanmode, 2919 u8 radar_detect, int radio_idx) 2920 { 2921 struct ieee80211_check_combinations_data data = { 2922 .chandef = chandef, 2923 .chanmode = chanmode, 2924 .radar_detect = radar_detect, 2925 .radio_idx = radio_idx, 2926 }; 2927 2928 return ieee80211_check_combinations_ext(sdata, &data); 2929 } 2930 2931 int ieee80211_max_num_channels(struct ieee80211_local *local, int radio_idx); 2932 u32 ieee80211_get_radio_mask(struct wiphy *wiphy, struct net_device *dev); 2933 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local, 2934 struct ieee80211_chanctx *ctx); 2935 struct ieee80211_chanctx * 2936 ieee80211_find_or_create_chanctx(struct ieee80211_sub_if_data *sdata, 2937 const struct ieee80211_chan_req *chanreq, 2938 enum ieee80211_chanctx_mode mode, 2939 bool assign_on_failure, 2940 bool *reused_ctx); 2941 void ieee80211_free_chanctx(struct ieee80211_local *local, 2942 struct ieee80211_chanctx *ctx, 2943 bool skip_idle_recalc); 2944 int ieee80211_chanctx_num_assigned(struct ieee80211_local *local, 2945 struct ieee80211_chanctx *ctx); 2946 /* TDLS */ 2947 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 2948 const u8 *peer, int link_id, 2949 u8 action_code, u8 dialog_token, u16 status_code, 2950 u32 peer_capability, bool initiator, 2951 const u8 *extra_ies, size_t extra_ies_len); 2952 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 2953 const u8 *peer, enum nl80211_tdls_operation oper); 2954 void ieee80211_tdls_peer_del_work(struct wiphy *wiphy, struct wiphy_work *wk); 2955 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev, 2956 const u8 *addr, u8 oper_class, 2957 struct cfg80211_chan_def *chandef); 2958 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy, 2959 struct net_device *dev, 2960 const u8 *addr); 2961 void ieee80211_teardown_tdls_peers(struct ieee80211_link_data *link); 2962 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata, 2963 const u8 *peer, u16 reason); 2964 void 2965 ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata, 2966 struct sk_buff *skb); 2967 2968 2969 const char *ieee80211_get_reason_code_string(u16 reason_code); 2970 u16 ieee80211_encode_usf(int val); 2971 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, 2972 enum nl80211_iftype type); 2973 2974 extern const struct ethtool_ops ieee80211_ethtool_ops; 2975 2976 u32 ieee80211_rate_expected_tx_airtime(struct ieee80211_hw *hw, 2977 struct ieee80211_tx_rate *tx_rate, 2978 struct rate_info *ri, 2979 enum nl80211_band band, 2980 bool ampdu, int len); 2981 u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw, 2982 struct ieee80211_vif *vif, 2983 struct ieee80211_sta *pubsta, 2984 int len, bool ampdu); 2985 #ifdef CONFIG_MAC80211_NOINLINE 2986 #define debug_noinline noinline 2987 #else 2988 #define debug_noinline 2989 #endif 2990 2991 void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache); 2992 void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache); 2993 2994 u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata); 2995 2996 void 2997 ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata, 2998 struct ieee80211_supported_band *sband, 2999 const u8 *he_cap_ie, u8 he_cap_len, 3000 const struct ieee80211_eht_cap_elem *eht_cap_ie_elem, 3001 u8 eht_cap_len, 3002 struct link_sta_info *link_sta); 3003 int ieee80211_req_neg_ttlm(struct ieee80211_sub_if_data *sdata, 3004 struct cfg80211_ttlm_params *params); 3005 3006 void ieee80211_check_wbrf_support(struct ieee80211_local *local); 3007 void ieee80211_add_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef); 3008 void ieee80211_remove_wbrf(struct ieee80211_local *local, struct cfg80211_chan_def *chandef); 3009 int ieee80211_mgd_set_epcs(struct ieee80211_sub_if_data *sdata, bool enable); 3010 3011 int ieee80211_mgd_assoc_ml_reconf(struct ieee80211_sub_if_data *sdata, 3012 struct cfg80211_ml_reconf_req *req); 3013 3014 void ieee80211_stop_mbssid(struct ieee80211_sub_if_data *sdata); 3015 3016 void 3017 ieee80211_uhr_cap_ie_to_sta_uhr_cap(struct ieee80211_sub_if_data *sdata, 3018 struct ieee80211_supported_band *sband, 3019 const struct ieee80211_uhr_cap *uhr_cap, 3020 u8 uhr_cap_len, 3021 struct link_sta_info *link_sta); 3022 3023 #if IS_ENABLED(CONFIG_MAC80211_KUNIT_TEST) 3024 #define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym) EXPORT_SYMBOL_IF_KUNIT(sym) 3025 #define VISIBLE_IF_MAC80211_KUNIT 3026 ieee80211_rx_result 3027 ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx); 3028 int ieee80211_calc_chandef_subchan_offset(const struct cfg80211_chan_def *ap, 3029 u8 n_partial_subchans); 3030 void ieee80211_rearrange_tpe_psd(struct ieee80211_parsed_tpe_psd *psd, 3031 const struct cfg80211_chan_def *ap, 3032 const struct cfg80211_chan_def *used); 3033 struct ieee802_11_elems * 3034 ieee80211_determine_chan_mode(struct ieee80211_sub_if_data *sdata, 3035 struct ieee80211_conn_settings *conn, 3036 struct cfg80211_bss *cbss, 3037 struct link_sta_info *link_sta, int link_id, 3038 struct ieee80211_chan_req *chanreq, 3039 struct cfg80211_chan_def *ap_chandef, 3040 unsigned long *userspace_selectors); 3041 int ieee80211_parse_neg_ttlm(struct ieee80211_sub_if_data *sdata, 3042 const struct ieee80211_ttlm_elem *ttlm, 3043 struct ieee80211_neg_ttlm *neg_ttlm, 3044 u8 *direction); 3045 #else 3046 #define EXPORT_SYMBOL_IF_MAC80211_KUNIT(sym) 3047 #define VISIBLE_IF_MAC80211_KUNIT static 3048 #endif 3049 3050 #endif /* IEEE80211_I_H */ 3051