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) 2018-2020 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 <net/ieee80211_radiotap.h> 29 #include <net/cfg80211.h> 30 #include <net/mac80211.h> 31 #include <net/fq.h> 32 #include "key.h" 33 #include "sta_info.h" 34 #include "debug.h" 35 36 extern const struct cfg80211_ops mac80211_config_ops; 37 38 struct ieee80211_local; 39 40 /* Maximum number of broadcast/multicast frames to buffer when some of the 41 * associated stations are using power saving. */ 42 #define AP_MAX_BC_BUFFER 128 43 44 /* Maximum number of frames buffered to all STAs, including multicast frames. 45 * Note: increasing this limit increases the potential memory requirement. Each 46 * frame can be up to about 2 kB long. */ 47 #define TOTAL_MAX_TX_BUFFER 512 48 49 /* Required encryption head and tailroom */ 50 #define IEEE80211_ENCRYPT_HEADROOM 8 51 #define IEEE80211_ENCRYPT_TAILROOM 18 52 53 /* power level hasn't been configured (or set to automatic) */ 54 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN 55 56 /* 57 * Some APs experience problems when working with U-APSD. Decreasing the 58 * probability of that happening by using legacy mode for all ACs but VO isn't 59 * enough. 60 * 61 * Cisco 4410N originally forced us to enable VO by default only because it 62 * treated non-VO ACs as legacy. 63 * 64 * However some APs (notably Netgear R7000) silently reclassify packets to 65 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval 66 * clients would never see some frames (e.g. ARP responses) or would fetch them 67 * accidentally after a long time. 68 * 69 * It makes little sense to enable u-APSD queues by default because it needs 70 * userspace applications to be aware of it to actually take advantage of the 71 * possible additional powersavings. Implicitly depending on driver autotrigger 72 * frame support doesn't make much sense. 73 */ 74 #define IEEE80211_DEFAULT_UAPSD_QUEUES 0 75 76 #define IEEE80211_DEFAULT_MAX_SP_LEN \ 77 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 78 79 extern const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS]; 80 81 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */) 82 83 #define IEEE80211_MAX_NAN_INSTANCE_ID 255 84 85 struct ieee80211_bss { 86 u32 device_ts_beacon, device_ts_presp; 87 88 bool wmm_used; 89 bool uapsd_supported; 90 91 #define IEEE80211_MAX_SUPP_RATES 32 92 u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; 93 size_t supp_rates_len; 94 struct ieee80211_rate *beacon_rate; 95 96 u32 vht_cap_info; 97 98 /* 99 * During association, we save an ERP value from a probe response so 100 * that we can feed ERP info to the driver when handling the 101 * association completes. these fields probably won't be up-to-date 102 * otherwise, you probably don't want to use them. 103 */ 104 bool has_erp_value; 105 u8 erp_value; 106 107 /* Keep track of the corruption of the last beacon/probe response. */ 108 u8 corrupt_data; 109 110 /* Keep track of what bits of information we have valid info for. */ 111 u8 valid_data; 112 }; 113 114 /** 115 * enum ieee80211_corrupt_data_flags - BSS data corruption flags 116 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted 117 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted 118 * 119 * These are bss flags that are attached to a bss in the 120 * @corrupt_data field of &struct ieee80211_bss. 121 */ 122 enum ieee80211_bss_corrupt_data_flags { 123 IEEE80211_BSS_CORRUPT_BEACON = BIT(0), 124 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1) 125 }; 126 127 /** 128 * enum ieee80211_valid_data_flags - BSS valid data flags 129 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE 130 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE 131 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE 132 * 133 * These are bss flags that are attached to a bss in the 134 * @valid_data field of &struct ieee80211_bss. They show which parts 135 * of the data structure were received as a result of an un-corrupted 136 * beacon/probe response. 137 */ 138 enum ieee80211_bss_valid_data_flags { 139 IEEE80211_BSS_VALID_WMM = BIT(1), 140 IEEE80211_BSS_VALID_RATES = BIT(2), 141 IEEE80211_BSS_VALID_ERP = BIT(3) 142 }; 143 144 typedef unsigned __bitwise ieee80211_tx_result; 145 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u) 146 #define TX_DROP ((__force ieee80211_tx_result) 1u) 147 #define TX_QUEUED ((__force ieee80211_tx_result) 2u) 148 149 #define IEEE80211_TX_UNICAST BIT(1) 150 #define IEEE80211_TX_PS_BUFFERED BIT(2) 151 152 struct ieee80211_tx_data { 153 struct sk_buff *skb; 154 struct sk_buff_head skbs; 155 struct ieee80211_local *local; 156 struct ieee80211_sub_if_data *sdata; 157 struct sta_info *sta; 158 struct ieee80211_key *key; 159 struct ieee80211_tx_rate rate; 160 161 unsigned int flags; 162 }; 163 164 165 typedef unsigned __bitwise ieee80211_rx_result; 166 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u) 167 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u) 168 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u) 169 #define RX_QUEUED ((__force ieee80211_rx_result) 3u) 170 171 /** 172 * enum ieee80211_packet_rx_flags - packet RX flags 173 * @IEEE80211_RX_AMSDU: a-MSDU packet 174 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed 175 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering 176 * 177 * These are per-frame flags that are attached to a frame in the 178 * @rx_flags field of &struct ieee80211_rx_status. 179 */ 180 enum ieee80211_packet_rx_flags { 181 IEEE80211_RX_AMSDU = BIT(3), 182 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4), 183 IEEE80211_RX_DEFERRED_RELEASE = BIT(5), 184 }; 185 186 /** 187 * enum ieee80211_rx_flags - RX data flags 188 * 189 * @IEEE80211_RX_CMNTR: received on cooked monitor already 190 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported 191 * to cfg80211_report_obss_beacon(). 192 * 193 * These flags are used across handling multiple interfaces 194 * for a single frame. 195 */ 196 enum ieee80211_rx_flags { 197 IEEE80211_RX_CMNTR = BIT(0), 198 IEEE80211_RX_BEACON_REPORTED = BIT(1), 199 }; 200 201 struct ieee80211_rx_data { 202 struct list_head *list; 203 struct sk_buff *skb; 204 struct ieee80211_local *local; 205 struct ieee80211_sub_if_data *sdata; 206 struct sta_info *sta; 207 struct ieee80211_key *key; 208 209 unsigned int flags; 210 211 /* 212 * Index into sequence numbers array, 0..16 213 * since the last (16) is used for non-QoS, 214 * will be 16 on non-QoS frames. 215 */ 216 int seqno_idx; 217 218 /* 219 * Index into the security IV/PN arrays, 0..16 220 * since the last (16) is used for CCMP-encrypted 221 * management frames, will be set to 16 on mgmt 222 * frames and 0 on non-QoS frames. 223 */ 224 int security_idx; 225 226 union { 227 struct { 228 u32 iv32; 229 u16 iv16; 230 } tkip; 231 struct { 232 u8 pn[IEEE80211_CCMP_PN_LEN]; 233 } ccm_gcm; 234 }; 235 }; 236 237 struct ieee80211_csa_settings { 238 const u16 *counter_offsets_beacon; 239 const u16 *counter_offsets_presp; 240 241 int n_counter_offsets_beacon; 242 int n_counter_offsets_presp; 243 244 u8 count; 245 }; 246 247 struct beacon_data { 248 u8 *head, *tail; 249 int head_len, tail_len; 250 struct ieee80211_meshconf_ie *meshconf; 251 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM]; 252 u8 cntdwn_current_counter; 253 struct rcu_head rcu_head; 254 }; 255 256 struct probe_resp { 257 struct rcu_head rcu_head; 258 int len; 259 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM]; 260 u8 data[]; 261 }; 262 263 struct fils_discovery_data { 264 struct rcu_head rcu_head; 265 int len; 266 u8 data[]; 267 }; 268 269 struct unsol_bcast_probe_resp_data { 270 struct rcu_head rcu_head; 271 int len; 272 u8 data[]; 273 }; 274 275 struct ps_data { 276 /* yes, this looks ugly, but guarantees that we can later use 277 * bitmap_empty :) 278 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */ 279 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)] 280 __aligned(__alignof__(unsigned long)); 281 struct sk_buff_head bc_buf; 282 atomic_t num_sta_ps; /* number of stations in PS mode */ 283 int dtim_count; 284 bool dtim_bc_mc; 285 }; 286 287 struct ieee80211_if_ap { 288 struct beacon_data __rcu *beacon; 289 struct probe_resp __rcu *probe_resp; 290 struct fils_discovery_data __rcu *fils_discovery; 291 struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp; 292 293 /* to be used after channel switch. */ 294 struct cfg80211_beacon_data *next_beacon; 295 struct list_head vlans; /* write-protected with RTNL and local->mtx */ 296 297 struct ps_data ps; 298 atomic_t num_mcast_sta; /* number of stations receiving multicast */ 299 300 bool multicast_to_unicast; 301 }; 302 303 struct ieee80211_if_vlan { 304 struct list_head list; /* write-protected with RTNL and local->mtx */ 305 306 /* used for all tx if the VLAN is configured to 4-addr mode */ 307 struct sta_info __rcu *sta; 308 atomic_t num_mcast_sta; /* number of stations receiving multicast */ 309 }; 310 311 struct mesh_stats { 312 __u32 fwded_mcast; /* Mesh forwarded multicast frames */ 313 __u32 fwded_unicast; /* Mesh forwarded unicast frames */ 314 __u32 fwded_frames; /* Mesh total forwarded frames */ 315 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/ 316 __u32 dropped_frames_no_route; /* Not transmitted, no route found */ 317 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */ 318 }; 319 320 #define PREQ_Q_F_START 0x1 321 #define PREQ_Q_F_REFRESH 0x2 322 struct mesh_preq_queue { 323 struct list_head list; 324 u8 dst[ETH_ALEN]; 325 u8 flags; 326 }; 327 328 struct ieee80211_roc_work { 329 struct list_head list; 330 331 struct ieee80211_sub_if_data *sdata; 332 333 struct ieee80211_channel *chan; 334 335 bool started, abort, hw_begun, notified; 336 bool on_channel; 337 338 unsigned long start_time; 339 340 u32 duration, req_duration; 341 struct sk_buff *frame; 342 u64 cookie, mgmt_tx_cookie; 343 enum ieee80211_roc_type type; 344 }; 345 346 /* flags used in struct ieee80211_if_managed.flags */ 347 enum ieee80211_sta_flags { 348 IEEE80211_STA_CONNECTION_POLL = BIT(1), 349 IEEE80211_STA_CONTROL_PORT = BIT(2), 350 IEEE80211_STA_DISABLE_HT = BIT(4), 351 IEEE80211_STA_MFP_ENABLED = BIT(6), 352 IEEE80211_STA_UAPSD_ENABLED = BIT(7), 353 IEEE80211_STA_NULLFUNC_ACKED = BIT(8), 354 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9), 355 IEEE80211_STA_DISABLE_40MHZ = BIT(10), 356 IEEE80211_STA_DISABLE_VHT = BIT(11), 357 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12), 358 IEEE80211_STA_DISABLE_160MHZ = BIT(13), 359 IEEE80211_STA_DISABLE_WMM = BIT(14), 360 IEEE80211_STA_ENABLE_RRM = BIT(15), 361 IEEE80211_STA_DISABLE_HE = BIT(16), 362 }; 363 364 struct ieee80211_mgd_auth_data { 365 struct cfg80211_bss *bss; 366 unsigned long timeout; 367 int tries; 368 u16 algorithm, expected_transaction; 369 370 u8 key[WLAN_KEY_LEN_WEP104]; 371 u8 key_len, key_idx; 372 bool done; 373 bool peer_confirmed; 374 bool timeout_started; 375 376 u16 sae_trans, sae_status; 377 size_t data_len; 378 u8 data[]; 379 }; 380 381 struct ieee80211_mgd_assoc_data { 382 struct cfg80211_bss *bss; 383 const u8 *supp_rates; 384 385 unsigned long timeout; 386 int tries; 387 388 u16 capability; 389 u8 prev_bssid[ETH_ALEN]; 390 u8 ssid[IEEE80211_MAX_SSID_LEN]; 391 u8 ssid_len; 392 u8 supp_rates_len; 393 bool wmm, uapsd; 394 bool need_beacon; 395 bool synced; 396 bool timeout_started; 397 398 u8 ap_ht_param; 399 400 struct ieee80211_vht_cap ap_vht_cap; 401 402 u8 fils_nonces[2 * FILS_NONCE_LEN]; 403 u8 fils_kek[FILS_MAX_KEK_LEN]; 404 size_t fils_kek_len; 405 406 size_t ie_len; 407 u8 ie[]; 408 }; 409 410 struct ieee80211_sta_tx_tspec { 411 /* timestamp of the first packet in the time slice */ 412 unsigned long time_slice_start; 413 414 u32 admitted_time; /* in usecs, unlike over the air */ 415 u8 tsid; 416 s8 up; /* signed to be able to invalidate with -1 during teardown */ 417 418 /* consumed TX time in microseconds in the time slice */ 419 u32 consumed_tx_time; 420 enum { 421 TX_TSPEC_ACTION_NONE = 0, 422 TX_TSPEC_ACTION_DOWNGRADE, 423 TX_TSPEC_ACTION_STOP_DOWNGRADE, 424 } action; 425 bool downgraded; 426 }; 427 428 DECLARE_EWMA(beacon_signal, 4, 4) 429 430 struct ieee80211_if_managed { 431 struct timer_list timer; 432 struct timer_list conn_mon_timer; 433 struct timer_list bcn_mon_timer; 434 struct timer_list chswitch_timer; 435 struct work_struct monitor_work; 436 struct work_struct chswitch_work; 437 struct work_struct beacon_connection_loss_work; 438 struct work_struct csa_connection_drop_work; 439 440 unsigned long beacon_timeout; 441 unsigned long probe_timeout; 442 int probe_send_count; 443 bool nullfunc_failed; 444 u8 connection_loss:1, 445 driver_disconnect:1, 446 reconnect:1; 447 448 struct cfg80211_bss *associated; 449 struct ieee80211_mgd_auth_data *auth_data; 450 struct ieee80211_mgd_assoc_data *assoc_data; 451 452 u8 bssid[ETH_ALEN] __aligned(2); 453 454 bool powersave; /* powersave requested for this iface */ 455 bool broken_ap; /* AP is broken -- turn off powersave */ 456 bool have_beacon; 457 u8 dtim_period; 458 enum ieee80211_smps_mode req_smps, /* requested smps mode */ 459 driver_smps_mode; /* smps mode request */ 460 461 struct work_struct request_smps_work; 462 463 unsigned int flags; 464 465 bool csa_waiting_bcn; 466 bool csa_ignored_same_chan; 467 468 bool beacon_crc_valid; 469 u32 beacon_crc; 470 471 bool status_acked; 472 bool status_received; 473 __le16 status_fc; 474 475 enum { 476 IEEE80211_MFP_DISABLED, 477 IEEE80211_MFP_OPTIONAL, 478 IEEE80211_MFP_REQUIRED 479 } mfp; /* management frame protection */ 480 481 /* 482 * Bitmask of enabled u-apsd queues, 483 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association 484 * to take effect. 485 */ 486 unsigned int uapsd_queues; 487 488 /* 489 * Maximum number of buffered frames AP can deliver during a 490 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar. 491 * Needs a new association to take effect. 492 */ 493 unsigned int uapsd_max_sp_len; 494 495 int wmm_last_param_set; 496 int mu_edca_last_param_set; 497 498 u8 use_4addr; 499 500 s16 p2p_noa_index; 501 502 struct ewma_beacon_signal ave_beacon_signal; 503 504 /* 505 * Number of Beacon frames used in ave_beacon_signal. This can be used 506 * to avoid generating less reliable cqm events that would be based 507 * only on couple of received frames. 508 */ 509 unsigned int count_beacon_signal; 510 511 /* Number of times beacon loss was invoked. */ 512 unsigned int beacon_loss_count; 513 514 /* 515 * Last Beacon frame signal strength average (ave_beacon_signal / 16) 516 * that triggered a cqm event. 0 indicates that no event has been 517 * generated for the current association. 518 */ 519 int last_cqm_event_signal; 520 521 /* 522 * State variables for keeping track of RSSI of the AP currently 523 * connected to and informing driver when RSSI has gone 524 * below/above a certain threshold. 525 */ 526 int rssi_min_thold, rssi_max_thold; 527 int last_ave_beacon_signal; 528 529 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ 530 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ 531 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */ 532 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */ 533 struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */ 534 struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */ 535 536 /* TDLS support */ 537 u8 tdls_peer[ETH_ALEN] __aligned(2); 538 struct delayed_work tdls_peer_del_work; 539 struct sk_buff *orig_teardown_skb; /* The original teardown skb */ 540 struct sk_buff *teardown_skb; /* A copy to send through the AP */ 541 spinlock_t teardown_lock; /* To lock changing teardown_skb */ 542 bool tdls_chan_switch_prohibited; 543 bool tdls_wider_bw_prohibited; 544 545 /* WMM-AC TSPEC support */ 546 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS]; 547 /* Use a separate work struct so that we can do something here 548 * while the sdata->work is flushing the queues, for example. 549 * otherwise, in scenarios where we hardly get any traffic out 550 * on the BE queue, but there's a lot of VO traffic, we might 551 * get stuck in a downgraded situation and flush takes forever. 552 */ 553 struct delayed_work tx_tspec_wk; 554 555 /* Information elements from the last transmitted (Re)Association 556 * Request frame. 557 */ 558 u8 *assoc_req_ies; 559 size_t assoc_req_ies_len; 560 }; 561 562 struct ieee80211_if_ibss { 563 struct timer_list timer; 564 struct work_struct csa_connection_drop_work; 565 566 unsigned long last_scan_completed; 567 568 u32 basic_rates; 569 570 bool fixed_bssid; 571 bool fixed_channel; 572 bool privacy; 573 574 bool control_port; 575 bool userspace_handles_dfs; 576 577 u8 bssid[ETH_ALEN] __aligned(2); 578 u8 ssid[IEEE80211_MAX_SSID_LEN]; 579 u8 ssid_len, ie_len; 580 u8 *ie; 581 struct cfg80211_chan_def chandef; 582 583 unsigned long ibss_join_req; 584 /* probe response/beacon for IBSS */ 585 struct beacon_data __rcu *presp; 586 587 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ 588 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ 589 590 spinlock_t incomplete_lock; 591 struct list_head incomplete_stations; 592 593 enum { 594 IEEE80211_IBSS_MLME_SEARCH, 595 IEEE80211_IBSS_MLME_JOINED, 596 } state; 597 }; 598 599 /** 600 * struct ieee80211_if_ocb - OCB mode state 601 * 602 * @housekeeping_timer: timer for periodic invocation of a housekeeping task 603 * @wrkq_flags: OCB deferred task action 604 * @incomplete_lock: delayed STA insertion lock 605 * @incomplete_stations: list of STAs waiting for delayed insertion 606 * @joined: indication if the interface is connected to an OCB network 607 */ 608 struct ieee80211_if_ocb { 609 struct timer_list housekeeping_timer; 610 unsigned long wrkq_flags; 611 612 spinlock_t incomplete_lock; 613 struct list_head incomplete_stations; 614 615 bool joined; 616 }; 617 618 /** 619 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface 620 * 621 * these declarations define the interface, which enables 622 * vendor-specific mesh synchronization 623 * 624 */ 625 struct ieee802_11_elems; 626 struct ieee80211_mesh_sync_ops { 627 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, 628 u16 stype, 629 struct ieee80211_mgmt *mgmt, 630 struct ieee802_11_elems *elems, 631 struct ieee80211_rx_status *rx_status); 632 633 /* should be called with beacon_data under RCU read lock */ 634 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata, 635 struct beacon_data *beacon); 636 /* add other framework functions here */ 637 }; 638 639 struct mesh_csa_settings { 640 struct rcu_head rcu_head; 641 struct cfg80211_csa_settings settings; 642 }; 643 644 struct ieee80211_if_mesh { 645 struct timer_list housekeeping_timer; 646 struct timer_list mesh_path_timer; 647 struct timer_list mesh_path_root_timer; 648 649 unsigned long wrkq_flags; 650 unsigned long mbss_changed; 651 652 bool userspace_handles_dfs; 653 654 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN]; 655 size_t mesh_id_len; 656 /* Active Path Selection Protocol Identifier */ 657 u8 mesh_pp_id; 658 /* Active Path Selection Metric Identifier */ 659 u8 mesh_pm_id; 660 /* Congestion Control Mode Identifier */ 661 u8 mesh_cc_id; 662 /* Synchronization Protocol Identifier */ 663 u8 mesh_sp_id; 664 /* Authentication Protocol Identifier */ 665 u8 mesh_auth_id; 666 /* Local mesh Sequence Number */ 667 u32 sn; 668 /* Last used PREQ ID */ 669 u32 preq_id; 670 atomic_t mpaths; 671 /* Timestamp of last SN update */ 672 unsigned long last_sn_update; 673 /* Time when it's ok to send next PERR */ 674 unsigned long next_perr; 675 /* Timestamp of last PREQ sent */ 676 unsigned long last_preq; 677 struct mesh_rmc *rmc; 678 spinlock_t mesh_preq_queue_lock; 679 struct mesh_preq_queue preq_queue; 680 int preq_queue_len; 681 struct mesh_stats mshstats; 682 struct mesh_config mshcfg; 683 atomic_t estab_plinks; 684 u32 mesh_seqnum; 685 bool accepting_plinks; 686 int num_gates; 687 struct beacon_data __rcu *beacon; 688 const u8 *ie; 689 u8 ie_len; 690 enum { 691 IEEE80211_MESH_SEC_NONE = 0x0, 692 IEEE80211_MESH_SEC_AUTHED = 0x1, 693 IEEE80211_MESH_SEC_SECURED = 0x2, 694 } security; 695 bool user_mpm; 696 /* Extensible Synchronization Framework */ 697 const struct ieee80211_mesh_sync_ops *sync_ops; 698 s64 sync_offset_clockdrift_max; 699 spinlock_t sync_offset_lock; 700 /* mesh power save */ 701 enum nl80211_mesh_power_mode nonpeer_pm; 702 int ps_peers_light_sleep; 703 int ps_peers_deep_sleep; 704 struct ps_data ps; 705 /* Channel Switching Support */ 706 struct mesh_csa_settings __rcu *csa; 707 enum { 708 IEEE80211_MESH_CSA_ROLE_NONE, 709 IEEE80211_MESH_CSA_ROLE_INIT, 710 IEEE80211_MESH_CSA_ROLE_REPEATER, 711 } csa_role; 712 u8 chsw_ttl; 713 u16 pre_value; 714 715 /* offset from skb->data while building IE */ 716 int meshconf_offset; 717 718 struct mesh_table *mesh_paths; 719 struct mesh_table *mpp_paths; /* Store paths for MPP&MAP */ 720 int mesh_paths_generation; 721 int mpp_paths_generation; 722 }; 723 724 #ifdef CONFIG_MAC80211_MESH 725 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ 726 do { (msh)->mshstats.name++; } while (0) 727 #else 728 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ 729 do { } while (0) 730 #endif 731 732 /** 733 * enum ieee80211_sub_if_data_flags - virtual interface flags 734 * 735 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets 736 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode 737 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between 738 * associated stations and deliver multicast frames both 739 * back to wireless media and to the local net stack. 740 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume. 741 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver 742 */ 743 enum ieee80211_sub_if_data_flags { 744 IEEE80211_SDATA_ALLMULTI = BIT(0), 745 IEEE80211_SDATA_OPERATING_GMODE = BIT(2), 746 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3), 747 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4), 748 IEEE80211_SDATA_IN_DRIVER = BIT(5), 749 }; 750 751 /** 752 * enum ieee80211_sdata_state_bits - virtual interface state bits 753 * @SDATA_STATE_RUNNING: virtual interface is up & running; this 754 * mirrors netif_running() but is separate for interface type 755 * change handling while the interface is up 756 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel 757 * mode, so queues are stopped 758 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due 759 * to offchannel, reset when offchannel returns 760 */ 761 enum ieee80211_sdata_state_bits { 762 SDATA_STATE_RUNNING, 763 SDATA_STATE_OFFCHANNEL, 764 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, 765 }; 766 767 /** 768 * enum ieee80211_chanctx_mode - channel context configuration mode 769 * 770 * @IEEE80211_CHANCTX_SHARED: channel context may be used by 771 * multiple interfaces 772 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used 773 * only by a single interface. This can be used for example for 774 * non-fixed channel IBSS. 775 */ 776 enum ieee80211_chanctx_mode { 777 IEEE80211_CHANCTX_SHARED, 778 IEEE80211_CHANCTX_EXCLUSIVE 779 }; 780 781 /** 782 * enum ieee80211_chanctx_replace_state - channel context replacement state 783 * 784 * This is used for channel context in-place reservations that require channel 785 * context switch/swap. 786 * 787 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place 788 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced 789 * by a (not yet registered) channel context pointed by %replace_ctx. 790 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context 791 * replaces an existing channel context pointed to by %replace_ctx. 792 */ 793 enum ieee80211_chanctx_replace_state { 794 IEEE80211_CHANCTX_REPLACE_NONE, 795 IEEE80211_CHANCTX_WILL_BE_REPLACED, 796 IEEE80211_CHANCTX_REPLACES_OTHER, 797 }; 798 799 struct ieee80211_chanctx { 800 struct list_head list; 801 struct rcu_head rcu_head; 802 803 struct list_head assigned_vifs; 804 struct list_head reserved_vifs; 805 806 enum ieee80211_chanctx_replace_state replace_state; 807 struct ieee80211_chanctx *replace_ctx; 808 809 enum ieee80211_chanctx_mode mode; 810 bool driver_present; 811 812 struct ieee80211_chanctx_conf conf; 813 }; 814 815 struct mac80211_qos_map { 816 struct cfg80211_qos_map qos_map; 817 struct rcu_head rcu_head; 818 }; 819 820 enum txq_info_flags { 821 IEEE80211_TXQ_STOP, 822 IEEE80211_TXQ_AMPDU, 823 IEEE80211_TXQ_NO_AMSDU, 824 IEEE80211_TXQ_STOP_NETIF_TX, 825 }; 826 827 /** 828 * struct txq_info - per tid queue 829 * 830 * @tin: contains packets split into multiple flows 831 * @def_flow: used as a fallback flow when a packet destined to @tin hashes to 832 * a fq_flow which is already owned by a different tin 833 * @def_cvars: codel vars for @def_flow 834 * @frags: used to keep fragments created after dequeue 835 * @schedule_order: used with ieee80211_local->active_txqs 836 * @schedule_round: counter to prevent infinite loops on TXQ scheduling 837 */ 838 struct txq_info { 839 struct fq_tin tin; 840 struct codel_vars def_cvars; 841 struct codel_stats cstats; 842 struct sk_buff_head frags; 843 struct list_head schedule_order; 844 u16 schedule_round; 845 unsigned long flags; 846 847 /* keep last! */ 848 struct ieee80211_txq txq; 849 }; 850 851 struct ieee80211_if_mntr { 852 u32 flags; 853 u8 mu_follow_addr[ETH_ALEN] __aligned(2); 854 855 struct list_head list; 856 }; 857 858 /** 859 * struct ieee80211_if_nan - NAN state 860 * 861 * @conf: current NAN configuration 862 * @func_ids: a bitmap of available instance_id's 863 */ 864 struct ieee80211_if_nan { 865 struct cfg80211_nan_conf conf; 866 867 /* protects function_inst_ids */ 868 spinlock_t func_lock; 869 struct idr function_inst_ids; 870 }; 871 872 struct ieee80211_sub_if_data { 873 struct list_head list; 874 875 struct wireless_dev wdev; 876 877 /* keys */ 878 struct list_head key_list; 879 880 /* count for keys needing tailroom space allocation */ 881 int crypto_tx_tailroom_needed_cnt; 882 int crypto_tx_tailroom_pending_dec; 883 struct delayed_work dec_tailroom_needed_wk; 884 885 struct net_device *dev; 886 struct ieee80211_local *local; 887 888 unsigned int flags; 889 890 unsigned long state; 891 892 char name[IFNAMSIZ]; 893 894 struct ieee80211_fragment_cache frags; 895 896 /* TID bitmap for NoAck policy */ 897 u16 noack_map; 898 899 /* bit field of ACM bits (BIT(802.1D tag)) */ 900 u8 wmm_acm; 901 902 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + 903 NUM_DEFAULT_MGMT_KEYS + 904 NUM_DEFAULT_BEACON_KEYS]; 905 struct ieee80211_key __rcu *default_unicast_key; 906 struct ieee80211_key __rcu *default_multicast_key; 907 struct ieee80211_key __rcu *default_mgmt_key; 908 struct ieee80211_key __rcu *default_beacon_key; 909 910 u16 sequence_number; 911 __be16 control_port_protocol; 912 bool control_port_no_encrypt; 913 bool control_port_no_preauth; 914 bool control_port_over_nl80211; 915 int encrypt_headroom; 916 917 atomic_t num_tx_queued; 918 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS]; 919 struct mac80211_qos_map __rcu *qos_map; 920 921 struct work_struct csa_finalize_work; 922 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */ 923 struct cfg80211_chan_def csa_chandef; 924 925 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */ 926 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */ 927 928 /* context reservation -- protected with chanctx_mtx */ 929 struct ieee80211_chanctx *reserved_chanctx; 930 struct cfg80211_chan_def reserved_chandef; 931 bool reserved_radar_required; 932 bool reserved_ready; 933 934 /* used to reconfigure hardware SM PS */ 935 struct work_struct recalc_smps; 936 937 struct work_struct work; 938 struct sk_buff_head skb_queue; 939 940 u8 needed_rx_chains; 941 enum ieee80211_smps_mode smps_mode; 942 943 int user_power_level; /* in dBm */ 944 int ap_power_level; /* in dBm */ 945 946 bool radar_required; 947 struct delayed_work dfs_cac_timer_work; 948 949 /* 950 * AP this belongs to: self in AP mode and 951 * corresponding AP in VLAN mode, NULL for 952 * all others (might be needed later in IBSS) 953 */ 954 struct ieee80211_if_ap *bss; 955 956 /* bitmap of allowed (non-MCS) rate indexes for rate control */ 957 u32 rc_rateidx_mask[NUM_NL80211_BANDS]; 958 959 bool rc_has_mcs_mask[NUM_NL80211_BANDS]; 960 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN]; 961 962 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS]; 963 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX]; 964 965 /* Beacon frame (non-MCS) rate (as a bitmap) */ 966 u32 beacon_rateidx_mask[NUM_NL80211_BANDS]; 967 bool beacon_rate_set; 968 969 union { 970 struct ieee80211_if_ap ap; 971 struct ieee80211_if_vlan vlan; 972 struct ieee80211_if_managed mgd; 973 struct ieee80211_if_ibss ibss; 974 struct ieee80211_if_mesh mesh; 975 struct ieee80211_if_ocb ocb; 976 struct ieee80211_if_mntr mntr; 977 struct ieee80211_if_nan nan; 978 } u; 979 980 #ifdef CONFIG_MAC80211_DEBUGFS 981 struct { 982 struct dentry *subdir_stations; 983 struct dentry *default_unicast_key; 984 struct dentry *default_multicast_key; 985 struct dentry *default_mgmt_key; 986 struct dentry *default_beacon_key; 987 } debugfs; 988 #endif 989 990 /* must be last, dynamically sized area in this! */ 991 struct ieee80211_vif vif; 992 }; 993 994 static inline 995 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p) 996 { 997 return container_of(p, struct ieee80211_sub_if_data, vif); 998 } 999 1000 static inline void sdata_lock(struct ieee80211_sub_if_data *sdata) 1001 __acquires(&sdata->wdev.mtx) 1002 { 1003 mutex_lock(&sdata->wdev.mtx); 1004 __acquire(&sdata->wdev.mtx); 1005 } 1006 1007 static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata) 1008 __releases(&sdata->wdev.mtx) 1009 { 1010 mutex_unlock(&sdata->wdev.mtx); 1011 __release(&sdata->wdev.mtx); 1012 } 1013 1014 #define sdata_dereference(p, sdata) \ 1015 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx)) 1016 1017 static inline void 1018 sdata_assert_lock(struct ieee80211_sub_if_data *sdata) 1019 { 1020 lockdep_assert_held(&sdata->wdev.mtx); 1021 } 1022 1023 static inline int 1024 ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef) 1025 { 1026 switch (chandef->width) { 1027 case NL80211_CHAN_WIDTH_5: 1028 return 2; 1029 case NL80211_CHAN_WIDTH_10: 1030 return 1; 1031 default: 1032 return 0; 1033 } 1034 } 1035 1036 static inline int 1037 ieee80211_vif_get_shift(struct ieee80211_vif *vif) 1038 { 1039 struct ieee80211_chanctx_conf *chanctx_conf; 1040 int shift = 0; 1041 1042 rcu_read_lock(); 1043 chanctx_conf = rcu_dereference(vif->chanctx_conf); 1044 if (chanctx_conf) 1045 shift = ieee80211_chandef_get_shift(&chanctx_conf->def); 1046 rcu_read_unlock(); 1047 1048 return shift; 1049 } 1050 1051 enum { 1052 IEEE80211_RX_MSG = 1, 1053 IEEE80211_TX_STATUS_MSG = 2, 1054 }; 1055 1056 enum queue_stop_reason { 1057 IEEE80211_QUEUE_STOP_REASON_DRIVER, 1058 IEEE80211_QUEUE_STOP_REASON_PS, 1059 IEEE80211_QUEUE_STOP_REASON_CSA, 1060 IEEE80211_QUEUE_STOP_REASON_AGGREGATION, 1061 IEEE80211_QUEUE_STOP_REASON_SUSPEND, 1062 IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 1063 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL, 1064 IEEE80211_QUEUE_STOP_REASON_FLUSH, 1065 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN, 1066 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID, 1067 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE, 1068 1069 IEEE80211_QUEUE_STOP_REASONS, 1070 }; 1071 1072 #ifdef CONFIG_MAC80211_LEDS 1073 struct tpt_led_trigger { 1074 char name[32]; 1075 const struct ieee80211_tpt_blink *blink_table; 1076 unsigned int blink_table_len; 1077 struct timer_list timer; 1078 struct ieee80211_local *local; 1079 unsigned long prev_traffic; 1080 unsigned long tx_bytes, rx_bytes; 1081 unsigned int active, want; 1082 bool running; 1083 }; 1084 #endif 1085 1086 /** 1087 * mac80211 scan flags - currently active scan mode 1088 * 1089 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as 1090 * well be on the operating channel 1091 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to 1092 * determine if we are on the operating channel or not 1093 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating 1094 * channel. This should not interrupt normal traffic. 1095 * @SCAN_COMPLETED: Set for our scan work function when the driver reported 1096 * that the scan completed. 1097 * @SCAN_ABORTED: Set for our scan work function when the driver reported 1098 * a scan complete for an aborted scan. 1099 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being 1100 * cancelled. 1101 */ 1102 enum { 1103 SCAN_SW_SCANNING, 1104 SCAN_HW_SCANNING, 1105 SCAN_ONCHANNEL_SCANNING, 1106 SCAN_COMPLETED, 1107 SCAN_ABORTED, 1108 SCAN_HW_CANCELLED, 1109 }; 1110 1111 /** 1112 * enum mac80211_scan_state - scan state machine states 1113 * 1114 * @SCAN_DECISION: Main entry point to the scan state machine, this state 1115 * determines if we should keep on scanning or switch back to the 1116 * operating channel 1117 * @SCAN_SET_CHANNEL: Set the next channel to be scanned 1118 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses 1119 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to 1120 * send out data 1121 * @SCAN_RESUME: Resume the scan and scan the next channel 1122 * @SCAN_ABORT: Abort the scan and go back to operating channel 1123 */ 1124 enum mac80211_scan_state { 1125 SCAN_DECISION, 1126 SCAN_SET_CHANNEL, 1127 SCAN_SEND_PROBE, 1128 SCAN_SUSPEND, 1129 SCAN_RESUME, 1130 SCAN_ABORT, 1131 }; 1132 1133 DECLARE_STATIC_KEY_FALSE(aql_disable); 1134 1135 struct ieee80211_local { 1136 /* embed the driver visible part. 1137 * don't cast (use the static inlines below), but we keep 1138 * it first anyway so they become a no-op */ 1139 struct ieee80211_hw hw; 1140 1141 struct fq fq; 1142 struct codel_vars *cvars; 1143 struct codel_params cparams; 1144 1145 /* protects active_txqs and txqi->schedule_order */ 1146 spinlock_t active_txq_lock[IEEE80211_NUM_ACS]; 1147 struct list_head active_txqs[IEEE80211_NUM_ACS]; 1148 u16 schedule_round[IEEE80211_NUM_ACS]; 1149 1150 u16 airtime_flags; 1151 u32 aql_txq_limit_low[IEEE80211_NUM_ACS]; 1152 u32 aql_txq_limit_high[IEEE80211_NUM_ACS]; 1153 u32 aql_threshold; 1154 atomic_t aql_total_pending_airtime; 1155 1156 const struct ieee80211_ops *ops; 1157 1158 /* 1159 * private workqueue to mac80211. mac80211 makes this accessible 1160 * via ieee80211_queue_work() 1161 */ 1162 struct workqueue_struct *workqueue; 1163 1164 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES]; 1165 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS]; 1166 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */ 1167 spinlock_t queue_stop_reason_lock; 1168 1169 int open_count; 1170 int monitors, cooked_mntrs; 1171 /* number of interfaces with corresponding FIF_ flags */ 1172 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll, 1173 fif_probe_req; 1174 bool probe_req_reg; 1175 bool rx_mcast_action_reg; 1176 unsigned int filter_flags; /* FIF_* */ 1177 1178 bool wiphy_ciphers_allocated; 1179 1180 bool use_chanctx; 1181 1182 /* protects the aggregated multicast list and filter calls */ 1183 spinlock_t filter_lock; 1184 1185 /* used for uploading changed mc list */ 1186 struct work_struct reconfig_filter; 1187 1188 /* aggregated multicast list */ 1189 struct netdev_hw_addr_list mc_list; 1190 1191 bool tim_in_locked_section; /* see ieee80211_beacon_get() */ 1192 1193 /* 1194 * suspended is true if we finished all the suspend _and_ we have 1195 * not yet come up from resume. This is to be used by mac80211 1196 * to ensure driver sanity during suspend and mac80211's own 1197 * sanity. It can eventually be used for WoW as well. 1198 */ 1199 bool suspended; 1200 1201 /* 1202 * Resuming is true while suspended, but when we're reprogramming the 1203 * hardware -- at that time it's allowed to use ieee80211_queue_work() 1204 * again even though some other parts of the stack are still suspended 1205 * and we still drop received frames to avoid waking the stack. 1206 */ 1207 bool resuming; 1208 1209 /* 1210 * quiescing is true during the suspend process _only_ to 1211 * ease timer cancelling etc. 1212 */ 1213 bool quiescing; 1214 1215 /* device is started */ 1216 bool started; 1217 1218 /* device is during a HW reconfig */ 1219 bool in_reconfig; 1220 1221 /* wowlan is enabled -- don't reconfig on resume */ 1222 bool wowlan; 1223 1224 struct work_struct radar_detected_work; 1225 1226 /* number of RX chains the hardware has */ 1227 u8 rx_chains; 1228 1229 /* bitmap of which sbands were copied */ 1230 u8 sband_allocated; 1231 1232 int tx_headroom; /* required headroom for hardware/radiotap */ 1233 1234 /* Tasklet and skb queue to process calls from IRQ mode. All frames 1235 * added to skb_queue will be processed, but frames in 1236 * skb_queue_unreliable may be dropped if the total length of these 1237 * queues increases over the limit. */ 1238 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128 1239 struct tasklet_struct tasklet; 1240 struct sk_buff_head skb_queue; 1241 struct sk_buff_head skb_queue_unreliable; 1242 1243 spinlock_t rx_path_lock; 1244 1245 /* Station data */ 1246 /* 1247 * The mutex only protects the list, hash table and 1248 * counter, reads are done with RCU. 1249 */ 1250 struct mutex sta_mtx; 1251 spinlock_t tim_lock; 1252 unsigned long num_sta; 1253 struct list_head sta_list; 1254 struct rhltable sta_hash; 1255 struct timer_list sta_cleanup; 1256 int sta_generation; 1257 1258 struct sk_buff_head pending[IEEE80211_MAX_QUEUES]; 1259 struct tasklet_struct tx_pending_tasklet; 1260 struct tasklet_struct wake_txqs_tasklet; 1261 1262 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES]; 1263 1264 /* number of interfaces with allmulti RX */ 1265 atomic_t iff_allmultis; 1266 1267 struct rate_control_ref *rate_ctrl; 1268 1269 struct arc4_ctx wep_tx_ctx; 1270 struct arc4_ctx wep_rx_ctx; 1271 u32 wep_iv; 1272 1273 /* see iface.c */ 1274 struct list_head interfaces; 1275 struct list_head mon_list; /* only that are IFF_UP && !cooked */ 1276 struct mutex iflist_mtx; 1277 1278 /* 1279 * Key mutex, protects sdata's key_list and sta_info's 1280 * key pointers and ptk_idx (write access, they're RCU.) 1281 */ 1282 struct mutex key_mtx; 1283 1284 /* mutex for scan and work locking */ 1285 struct mutex mtx; 1286 1287 /* Scanning and BSS list */ 1288 unsigned long scanning; 1289 struct cfg80211_ssid scan_ssid; 1290 struct cfg80211_scan_request *int_scan_req; 1291 struct cfg80211_scan_request __rcu *scan_req; 1292 struct ieee80211_scan_request *hw_scan_req; 1293 struct cfg80211_chan_def scan_chandef; 1294 enum nl80211_band hw_scan_band; 1295 int scan_channel_idx; 1296 int scan_ies_len; 1297 int hw_scan_ies_bufsize; 1298 struct cfg80211_scan_info scan_info; 1299 1300 struct work_struct sched_scan_stopped_work; 1301 struct ieee80211_sub_if_data __rcu *sched_scan_sdata; 1302 struct cfg80211_sched_scan_request __rcu *sched_scan_req; 1303 u8 scan_addr[ETH_ALEN]; 1304 1305 unsigned long leave_oper_channel_time; 1306 enum mac80211_scan_state next_scan_state; 1307 struct delayed_work scan_work; 1308 struct ieee80211_sub_if_data __rcu *scan_sdata; 1309 /* For backward compatibility only -- do not use */ 1310 struct cfg80211_chan_def _oper_chandef; 1311 1312 /* Temporary remain-on-channel for off-channel operations */ 1313 struct ieee80211_channel *tmp_channel; 1314 1315 /* channel contexts */ 1316 struct list_head chanctx_list; 1317 struct mutex chanctx_mtx; 1318 1319 #ifdef CONFIG_MAC80211_LEDS 1320 struct led_trigger tx_led, rx_led, assoc_led, radio_led; 1321 struct led_trigger tpt_led; 1322 atomic_t tx_led_active, rx_led_active, assoc_led_active; 1323 atomic_t radio_led_active, tpt_led_active; 1324 struct tpt_led_trigger *tpt_led_trigger; 1325 #endif 1326 1327 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS 1328 /* SNMP counters */ 1329 /* dot11CountersTable */ 1330 u32 dot11TransmittedFragmentCount; 1331 u32 dot11MulticastTransmittedFrameCount; 1332 u32 dot11FailedCount; 1333 u32 dot11RetryCount; 1334 u32 dot11MultipleRetryCount; 1335 u32 dot11FrameDuplicateCount; 1336 u32 dot11ReceivedFragmentCount; 1337 u32 dot11MulticastReceivedFrameCount; 1338 u32 dot11TransmittedFrameCount; 1339 1340 /* TX/RX handler statistics */ 1341 unsigned int tx_handlers_drop; 1342 unsigned int tx_handlers_queued; 1343 unsigned int tx_handlers_drop_wep; 1344 unsigned int tx_handlers_drop_not_assoc; 1345 unsigned int tx_handlers_drop_unauth_port; 1346 unsigned int rx_handlers_drop; 1347 unsigned int rx_handlers_queued; 1348 unsigned int rx_handlers_drop_nullfunc; 1349 unsigned int rx_handlers_drop_defrag; 1350 unsigned int tx_expand_skb_head; 1351 unsigned int tx_expand_skb_head_cloned; 1352 unsigned int rx_expand_skb_head_defrag; 1353 unsigned int rx_handlers_fragments; 1354 unsigned int tx_status_drop; 1355 #define I802_DEBUG_INC(c) (c)++ 1356 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */ 1357 #define I802_DEBUG_INC(c) do { } while (0) 1358 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */ 1359 1360 1361 int total_ps_buffered; /* total number of all buffered unicast and 1362 * multicast packets for power saving stations 1363 */ 1364 1365 bool pspolling; 1366 /* 1367 * PS can only be enabled when we have exactly one managed 1368 * interface (and monitors) in PS, this then points there. 1369 */ 1370 struct ieee80211_sub_if_data *ps_sdata; 1371 struct work_struct dynamic_ps_enable_work; 1372 struct work_struct dynamic_ps_disable_work; 1373 struct timer_list dynamic_ps_timer; 1374 struct notifier_block ifa_notifier; 1375 struct notifier_block ifa6_notifier; 1376 1377 /* 1378 * The dynamic ps timeout configured from user space via WEXT - 1379 * this will override whatever chosen by mac80211 internally. 1380 */ 1381 int dynamic_ps_forced_timeout; 1382 1383 int user_power_level; /* in dBm, for all interfaces */ 1384 1385 enum ieee80211_smps_mode smps_mode; 1386 1387 struct work_struct restart_work; 1388 1389 #ifdef CONFIG_MAC80211_DEBUGFS 1390 struct local_debugfsdentries { 1391 struct dentry *rcdir; 1392 struct dentry *keys; 1393 } debugfs; 1394 bool force_tx_status; 1395 #endif 1396 1397 /* 1398 * Remain-on-channel support 1399 */ 1400 struct delayed_work roc_work; 1401 struct list_head roc_list; 1402 struct work_struct hw_roc_start, hw_roc_done; 1403 unsigned long hw_roc_start_time; 1404 u64 roc_cookie_counter; 1405 1406 struct idr ack_status_frames; 1407 spinlock_t ack_status_lock; 1408 1409 struct ieee80211_sub_if_data __rcu *p2p_sdata; 1410 1411 /* virtual monitor interface */ 1412 struct ieee80211_sub_if_data __rcu *monitor_sdata; 1413 struct cfg80211_chan_def monitor_chandef; 1414 1415 /* extended capabilities provided by mac80211 */ 1416 u8 ext_capa[8]; 1417 1418 /* TDLS channel switch */ 1419 struct work_struct tdls_chsw_work; 1420 struct sk_buff_head skb_queue_tdls_chsw; 1421 }; 1422 1423 static inline struct ieee80211_sub_if_data * 1424 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev) 1425 { 1426 return netdev_priv(dev); 1427 } 1428 1429 static inline struct ieee80211_sub_if_data * 1430 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev) 1431 { 1432 return container_of(wdev, struct ieee80211_sub_if_data, wdev); 1433 } 1434 1435 static inline struct ieee80211_supported_band * 1436 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata) 1437 { 1438 struct ieee80211_local *local = sdata->local; 1439 struct ieee80211_chanctx_conf *chanctx_conf; 1440 enum nl80211_band band; 1441 1442 rcu_read_lock(); 1443 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 1444 1445 if (WARN_ON_ONCE(!chanctx_conf)) { 1446 rcu_read_unlock(); 1447 return NULL; 1448 } 1449 1450 band = chanctx_conf->def.chan->band; 1451 rcu_read_unlock(); 1452 1453 return local->hw.wiphy->bands[band]; 1454 } 1455 1456 /* this struct holds the value parsing from channel switch IE */ 1457 struct ieee80211_csa_ie { 1458 struct cfg80211_chan_def chandef; 1459 u8 mode; 1460 u8 count; 1461 u8 ttl; 1462 u16 pre_value; 1463 u16 reason_code; 1464 u32 max_switch_time; 1465 }; 1466 1467 /* Parsed Information Elements */ 1468 struct ieee802_11_elems { 1469 const u8 *ie_start; 1470 size_t total_len; 1471 1472 /* pointers to IEs */ 1473 const struct ieee80211_tdls_lnkie *lnk_id; 1474 const struct ieee80211_ch_switch_timing *ch_sw_timing; 1475 const u8 *ext_capab; 1476 const u8 *ssid; 1477 const u8 *supp_rates; 1478 const u8 *ds_params; 1479 const struct ieee80211_tim_ie *tim; 1480 const u8 *challenge; 1481 const u8 *rsn; 1482 const u8 *rsnx; 1483 const u8 *erp_info; 1484 const u8 *ext_supp_rates; 1485 const u8 *wmm_info; 1486 const u8 *wmm_param; 1487 const struct ieee80211_ht_cap *ht_cap_elem; 1488 const struct ieee80211_ht_operation *ht_operation; 1489 const struct ieee80211_vht_cap *vht_cap_elem; 1490 const struct ieee80211_vht_operation *vht_operation; 1491 const struct ieee80211_meshconf_ie *mesh_config; 1492 const u8 *he_cap; 1493 const struct ieee80211_he_operation *he_operation; 1494 const struct ieee80211_he_spr *he_spr; 1495 const struct ieee80211_mu_edca_param_set *mu_edca_param_set; 1496 const struct ieee80211_he_6ghz_capa *he_6ghz_capa; 1497 const u8 *uora_element; 1498 const u8 *mesh_id; 1499 const u8 *peering; 1500 const __le16 *awake_window; 1501 const u8 *preq; 1502 const u8 *prep; 1503 const u8 *perr; 1504 const struct ieee80211_rann_ie *rann; 1505 const struct ieee80211_channel_sw_ie *ch_switch_ie; 1506 const struct ieee80211_ext_chansw_ie *ext_chansw_ie; 1507 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie; 1508 const u8 *max_channel_switch_time; 1509 const u8 *country_elem; 1510 const u8 *pwr_constr_elem; 1511 const u8 *cisco_dtpc_elem; 1512 const struct ieee80211_timeout_interval_ie *timeout_int; 1513 const u8 *opmode_notif; 1514 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs; 1515 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie; 1516 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie; 1517 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie; 1518 const struct ieee80211_bssid_index *bssid_index; 1519 u8 max_bssid_indicator; 1520 u8 dtim_count; 1521 u8 dtim_period; 1522 const struct ieee80211_addba_ext_ie *addba_ext_ie; 1523 const struct ieee80211_s1g_cap *s1g_capab; 1524 const struct ieee80211_s1g_oper_ie *s1g_oper; 1525 const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat; 1526 const struct ieee80211_aid_response_ie *aid_resp; 1527 1528 /* length of them, respectively */ 1529 u8 ext_capab_len; 1530 u8 ssid_len; 1531 u8 supp_rates_len; 1532 u8 tim_len; 1533 u8 challenge_len; 1534 u8 rsn_len; 1535 u8 rsnx_len; 1536 u8 ext_supp_rates_len; 1537 u8 wmm_info_len; 1538 u8 wmm_param_len; 1539 u8 he_cap_len; 1540 u8 mesh_id_len; 1541 u8 peering_len; 1542 u8 preq_len; 1543 u8 prep_len; 1544 u8 perr_len; 1545 u8 country_elem_len; 1546 u8 bssid_index_len; 1547 1548 /* whether a parse error occurred while retrieving these elements */ 1549 bool parse_error; 1550 }; 1551 1552 static inline struct ieee80211_local *hw_to_local( 1553 struct ieee80211_hw *hw) 1554 { 1555 return container_of(hw, struct ieee80211_local, hw); 1556 } 1557 1558 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq) 1559 { 1560 return container_of(txq, struct txq_info, txq); 1561 } 1562 1563 static inline bool txq_has_queue(struct ieee80211_txq *txq) 1564 { 1565 struct txq_info *txqi = to_txq_info(txq); 1566 1567 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets); 1568 } 1569 1570 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr) 1571 { 1572 return ether_addr_equal(raddr, addr) || 1573 is_broadcast_ether_addr(raddr); 1574 } 1575 1576 static inline bool 1577 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status) 1578 { 1579 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START && 1580 status->flag & RX_FLAG_MACTIME_END); 1581 return !!(status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END | 1582 RX_FLAG_MACTIME_PLCP_START)); 1583 } 1584 1585 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata); 1586 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata); 1587 1588 /* This function returns the number of multicast stations connected to this 1589 * interface. It returns -1 if that number is not tracked, that is for netdevs 1590 * not in AP or AP_VLAN mode or when using 4addr. 1591 */ 1592 static inline int 1593 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata) 1594 { 1595 if (sdata->vif.type == NL80211_IFTYPE_AP) 1596 return atomic_read(&sdata->u.ap.num_mcast_sta); 1597 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta) 1598 return atomic_read(&sdata->u.vlan.num_mcast_sta); 1599 return -1; 1600 } 1601 1602 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, 1603 struct ieee80211_rx_status *status, 1604 unsigned int mpdu_len, 1605 unsigned int mpdu_offset); 1606 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed); 1607 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); 1608 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, 1609 u32 changed); 1610 void ieee80211_configure_filter(struct ieee80211_local *local); 1611 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata); 1612 1613 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local); 1614 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 1615 u64 *cookie, gfp_t gfp); 1616 1617 void ieee80211_check_fast_rx(struct sta_info *sta); 1618 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata); 1619 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata); 1620 void ieee80211_clear_fast_rx(struct sta_info *sta); 1621 1622 /* STA code */ 1623 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata); 1624 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, 1625 struct cfg80211_auth_request *req); 1626 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, 1627 struct cfg80211_assoc_request *req); 1628 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, 1629 struct cfg80211_deauth_request *req); 1630 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, 1631 struct cfg80211_disassoc_request *req); 1632 void ieee80211_send_pspoll(struct ieee80211_local *local, 1633 struct ieee80211_sub_if_data *sdata); 1634 void ieee80211_recalc_ps(struct ieee80211_local *local); 1635 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata); 1636 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata); 1637 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata); 1638 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 1639 struct sk_buff *skb); 1640 void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata, 1641 struct sk_buff *skb); 1642 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata); 1643 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata); 1644 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata); 1645 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata, 1646 __le16 fc, bool acked); 1647 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata); 1648 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata); 1649 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata); 1650 void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, 1651 u8 *bssid, u8 reason, bool tx); 1652 1653 /* IBSS code */ 1654 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local); 1655 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata); 1656 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata, 1657 const u8 *bssid, const u8 *addr, u32 supp_rates); 1658 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, 1659 struct cfg80211_ibss_params *params); 1660 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata); 1661 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata); 1662 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 1663 struct sk_buff *skb); 1664 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata, 1665 struct cfg80211_csa_settings *csa_settings); 1666 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata); 1667 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata); 1668 1669 /* OCB code */ 1670 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata); 1671 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata, 1672 const u8 *bssid, const u8 *addr, u32 supp_rates); 1673 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata); 1674 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata, 1675 struct ocb_setup *setup); 1676 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata); 1677 1678 /* mesh code */ 1679 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata); 1680 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 1681 struct sk_buff *skb); 1682 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata, 1683 struct cfg80211_csa_settings *csa_settings); 1684 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata); 1685 1686 /* scan/BSS handling */ 1687 void ieee80211_scan_work(struct work_struct *work); 1688 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata, 1689 const u8 *ssid, u8 ssid_len, 1690 struct ieee80211_channel **channels, 1691 unsigned int n_channels, 1692 enum nl80211_bss_scan_width scan_width); 1693 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, 1694 struct cfg80211_scan_request *req); 1695 void ieee80211_scan_cancel(struct ieee80211_local *local); 1696 void ieee80211_run_deferred_scan(struct ieee80211_local *local); 1697 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb); 1698 1699 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local); 1700 struct ieee80211_bss * 1701 ieee80211_bss_info_update(struct ieee80211_local *local, 1702 struct ieee80211_rx_status *rx_status, 1703 struct ieee80211_mgmt *mgmt, 1704 size_t len, 1705 struct ieee80211_channel *channel); 1706 void ieee80211_rx_bss_put(struct ieee80211_local *local, 1707 struct ieee80211_bss *bss); 1708 1709 /* scheduled scan handling */ 1710 int 1711 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, 1712 struct cfg80211_sched_scan_request *req); 1713 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, 1714 struct cfg80211_sched_scan_request *req); 1715 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local); 1716 void ieee80211_sched_scan_end(struct ieee80211_local *local); 1717 void ieee80211_sched_scan_stopped_work(struct work_struct *work); 1718 1719 /* off-channel/mgmt-tx */ 1720 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local); 1721 void ieee80211_offchannel_return(struct ieee80211_local *local); 1722 void ieee80211_roc_setup(struct ieee80211_local *local); 1723 void ieee80211_start_next_roc(struct ieee80211_local *local); 1724 void ieee80211_roc_purge(struct ieee80211_local *local, 1725 struct ieee80211_sub_if_data *sdata); 1726 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev, 1727 struct ieee80211_channel *chan, 1728 unsigned int duration, u64 *cookie); 1729 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, 1730 struct wireless_dev *wdev, u64 cookie); 1731 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 1732 struct cfg80211_mgmt_tx_params *params, u64 *cookie); 1733 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, 1734 struct wireless_dev *wdev, u64 cookie); 1735 1736 /* channel switch handling */ 1737 void ieee80211_csa_finalize_work(struct work_struct *work); 1738 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 1739 struct cfg80211_csa_settings *params); 1740 1741 /* interface handling */ 1742 #define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \ 1743 NETIF_F_HW_CSUM | NETIF_F_SG | \ 1744 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE) 1745 #define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM) 1746 #define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \ 1747 MAC80211_SUPPORTED_FEATURES_RX) 1748 1749 int ieee80211_iface_init(void); 1750 void ieee80211_iface_exit(void); 1751 int ieee80211_if_add(struct ieee80211_local *local, const char *name, 1752 unsigned char name_assign_type, 1753 struct wireless_dev **new_wdev, enum nl80211_iftype type, 1754 struct vif_params *params); 1755 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, 1756 enum nl80211_iftype type); 1757 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata); 1758 void ieee80211_remove_interfaces(struct ieee80211_local *local); 1759 u32 ieee80211_idle_off(struct ieee80211_local *local); 1760 void ieee80211_recalc_idle(struct ieee80211_local *local); 1761 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata, 1762 const int offset); 1763 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up); 1764 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata); 1765 int ieee80211_add_virtual_monitor(struct ieee80211_local *local); 1766 void ieee80211_del_virtual_monitor(struct ieee80211_local *local); 1767 1768 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata); 1769 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata, 1770 bool update_bss); 1771 void ieee80211_recalc_offload(struct ieee80211_local *local); 1772 1773 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata) 1774 { 1775 return test_bit(SDATA_STATE_RUNNING, &sdata->state); 1776 } 1777 1778 /* tx handling */ 1779 void ieee80211_clear_tx_pending(struct ieee80211_local *local); 1780 void ieee80211_tx_pending(struct tasklet_struct *t); 1781 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb, 1782 struct net_device *dev); 1783 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, 1784 struct net_device *dev); 1785 netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb, 1786 struct net_device *dev); 1787 void __ieee80211_subif_start_xmit(struct sk_buff *skb, 1788 struct net_device *dev, 1789 u32 info_flags, 1790 u32 ctrl_flags, 1791 u64 *cookie); 1792 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw, 1793 struct sk_buff_head *skbs); 1794 struct sk_buff * 1795 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata, 1796 struct sk_buff *skb, u32 info_flags); 1797 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb, 1798 struct ieee80211_supported_band *sband, 1799 int retry_count, int shift, bool send_to_cooked, 1800 struct ieee80211_tx_status *status); 1801 1802 void ieee80211_check_fast_xmit(struct sta_info *sta); 1803 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local); 1804 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata); 1805 void ieee80211_clear_fast_xmit(struct sta_info *sta); 1806 int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev, 1807 const u8 *buf, size_t len, 1808 const u8 *dest, __be16 proto, bool unencrypted, 1809 u64 *cookie); 1810 int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev, 1811 const u8 *buf, size_t len); 1812 1813 /* HT */ 1814 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, 1815 struct ieee80211_sta_ht_cap *ht_cap); 1816 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, 1817 struct ieee80211_supported_band *sband, 1818 const struct ieee80211_ht_cap *ht_cap_ie, 1819 struct sta_info *sta); 1820 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, 1821 const u8 *da, u16 tid, 1822 u16 initiator, u16 reason_code); 1823 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata, 1824 enum ieee80211_smps_mode smps, const u8 *da, 1825 const u8 *bssid); 1826 void ieee80211_request_smps_ap_work(struct work_struct *work); 1827 void ieee80211_request_smps_mgd_work(struct work_struct *work); 1828 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old, 1829 enum ieee80211_smps_mode smps_mode_new); 1830 1831 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, 1832 u16 initiator, u16 reason, bool stop); 1833 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, 1834 u16 initiator, u16 reason, bool stop); 1835 void ___ieee80211_start_rx_ba_session(struct sta_info *sta, 1836 u8 dialog_token, u16 timeout, 1837 u16 start_seq_num, u16 ba_policy, u16 tid, 1838 u16 buf_size, bool tx, bool auto_seq, 1839 const struct ieee80211_addba_ext_ie *addbaext); 1840 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, 1841 enum ieee80211_agg_stop_reason reason); 1842 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, 1843 struct sta_info *sta, 1844 struct ieee80211_mgmt *mgmt, size_t len); 1845 void ieee80211_process_addba_resp(struct ieee80211_local *local, 1846 struct sta_info *sta, 1847 struct ieee80211_mgmt *mgmt, 1848 size_t len); 1849 void ieee80211_process_addba_request(struct ieee80211_local *local, 1850 struct sta_info *sta, 1851 struct ieee80211_mgmt *mgmt, 1852 size_t len); 1853 1854 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, 1855 enum ieee80211_agg_stop_reason reason); 1856 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, 1857 enum ieee80211_agg_stop_reason reason); 1858 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid, 1859 struct tid_ampdu_tx *tid_tx); 1860 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid, 1861 struct tid_ampdu_tx *tid_tx); 1862 void ieee80211_ba_session_work(struct work_struct *work); 1863 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid); 1864 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid); 1865 1866 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs); 1867 enum nl80211_smps_mode 1868 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps); 1869 1870 /* VHT */ 1871 void 1872 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, 1873 struct ieee80211_supported_band *sband, 1874 const struct ieee80211_vht_cap *vht_cap_ie, 1875 struct sta_info *sta); 1876 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta); 1877 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta); 1878 void ieee80211_sta_set_rx_nss(struct sta_info *sta); 1879 enum ieee80211_sta_rx_bandwidth 1880 ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width); 1881 enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta); 1882 void ieee80211_sta_set_rx_nss(struct sta_info *sta); 1883 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata, 1884 struct ieee80211_mgmt *mgmt); 1885 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, 1886 struct sta_info *sta, u8 opmode, 1887 enum nl80211_band band); 1888 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, 1889 struct sta_info *sta, u8 opmode, 1890 enum nl80211_band band); 1891 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata, 1892 struct ieee80211_sta_vht_cap *vht_cap); 1893 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap, 1894 u16 vht_mask[NL80211_VHT_NSS_MAX]); 1895 enum nl80211_chan_width 1896 ieee80211_sta_rx_bw_to_chan_width(struct sta_info *sta); 1897 1898 /* HE */ 1899 void 1900 ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata, 1901 struct ieee80211_supported_band *sband, 1902 const u8 *he_cap_ie, u8 he_cap_len, 1903 const struct ieee80211_he_6ghz_capa *he_6ghz_capa, 1904 struct sta_info *sta); 1905 void 1906 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif, 1907 const struct ieee80211_he_spr *he_spr_ie_elem); 1908 1909 void 1910 ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif, 1911 const struct ieee80211_he_operation *he_op_ie_elem); 1912 1913 /* S1G */ 1914 void ieee80211_s1g_sta_rate_init(struct sta_info *sta); 1915 1916 /* Spectrum management */ 1917 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, 1918 struct ieee80211_mgmt *mgmt, 1919 size_t len); 1920 /** 1921 * ieee80211_parse_ch_switch_ie - parses channel switch IEs 1922 * @sdata: the sdata of the interface which has received the frame 1923 * @elems: parsed 802.11 elements received with the frame 1924 * @current_band: indicates the current band 1925 * @vht_cap_info: VHT capabilities of the transmitter 1926 * @sta_flags: contains information about own capabilities and restrictions 1927 * to decide which channel switch announcements can be accepted. Only the 1928 * following subset of &enum ieee80211_sta_flags are evaluated: 1929 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT, 1930 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ, 1931 * %IEEE80211_STA_DISABLE_160MHZ. 1932 * @bssid: the currently connected bssid (for reporting) 1933 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl. 1934 All of them will be filled with if success only. 1935 * Return: 0 on success, <0 on error and >0 if there is nothing to parse. 1936 */ 1937 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata, 1938 struct ieee802_11_elems *elems, 1939 enum nl80211_band current_band, 1940 u32 vht_cap_info, 1941 u32 sta_flags, u8 *bssid, 1942 struct ieee80211_csa_ie *csa_ie); 1943 1944 /* Suspend/resume and hw reconfiguration */ 1945 int ieee80211_reconfig(struct ieee80211_local *local); 1946 void ieee80211_stop_device(struct ieee80211_local *local); 1947 1948 int __ieee80211_suspend(struct ieee80211_hw *hw, 1949 struct cfg80211_wowlan *wowlan); 1950 1951 static inline int __ieee80211_resume(struct ieee80211_hw *hw) 1952 { 1953 struct ieee80211_local *local = hw_to_local(hw); 1954 1955 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) && 1956 !test_bit(SCAN_COMPLETED, &local->scanning), 1957 "%s: resume with hardware scan still in progress\n", 1958 wiphy_name(hw->wiphy)); 1959 1960 return ieee80211_reconfig(hw_to_local(hw)); 1961 } 1962 1963 /* utility functions/constants */ 1964 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */ 1965 int ieee80211_frame_duration(enum nl80211_band band, size_t len, 1966 int rate, int erp, int short_preamble, 1967 int shift); 1968 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, 1969 struct ieee80211_tx_queue_params *qparam, 1970 int ac); 1971 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, 1972 bool bss_notify, bool enable_qos); 1973 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, 1974 struct sta_info *sta, struct sk_buff *skb); 1975 1976 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, 1977 struct sk_buff *skb, int tid, 1978 enum nl80211_band band); 1979 1980 /* sta_out needs to be checked for ERR_PTR() before using */ 1981 int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata, 1982 struct sk_buff *skb, 1983 struct sta_info **sta_out); 1984 1985 static inline void 1986 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, 1987 struct sk_buff *skb, int tid, 1988 enum nl80211_band band) 1989 { 1990 rcu_read_lock(); 1991 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band); 1992 rcu_read_unlock(); 1993 } 1994 1995 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata, 1996 struct sk_buff *skb, int tid) 1997 { 1998 struct ieee80211_chanctx_conf *chanctx_conf; 1999 2000 rcu_read_lock(); 2001 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 2002 if (WARN_ON(!chanctx_conf)) { 2003 rcu_read_unlock(); 2004 kfree_skb(skb); 2005 return; 2006 } 2007 2008 __ieee80211_tx_skb_tid_band(sdata, skb, tid, 2009 chanctx_conf->def.chan->band); 2010 rcu_read_unlock(); 2011 } 2012 2013 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, 2014 struct sk_buff *skb) 2015 { 2016 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */ 2017 ieee80211_tx_skb_tid(sdata, skb, 7); 2018 } 2019 2020 u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, 2021 struct ieee802_11_elems *elems, 2022 u64 filter, u32 crc, u8 *transmitter_bssid, 2023 u8 *bss_bssid); 2024 static inline void ieee802_11_parse_elems(const u8 *start, size_t len, 2025 bool action, 2026 struct ieee802_11_elems *elems, 2027 u8 *transmitter_bssid, 2028 u8 *bss_bssid) 2029 { 2030 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0, 2031 transmitter_bssid, bss_bssid); 2032 } 2033 2034 2035 extern const int ieee802_1d_to_ac[8]; 2036 2037 static inline int ieee80211_ac_from_tid(int tid) 2038 { 2039 return ieee802_1d_to_ac[tid & 7]; 2040 } 2041 2042 void ieee80211_dynamic_ps_enable_work(struct work_struct *work); 2043 void ieee80211_dynamic_ps_disable_work(struct work_struct *work); 2044 void ieee80211_dynamic_ps_timer(struct timer_list *t); 2045 void ieee80211_send_nullfunc(struct ieee80211_local *local, 2046 struct ieee80211_sub_if_data *sdata, 2047 bool powersave); 2048 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata, 2049 struct ieee80211_hdr *hdr, bool ack, u16 tx_time); 2050 2051 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, 2052 unsigned long queues, 2053 enum queue_stop_reason reason, 2054 bool refcounted); 2055 void ieee80211_stop_vif_queues(struct ieee80211_local *local, 2056 struct ieee80211_sub_if_data *sdata, 2057 enum queue_stop_reason reason); 2058 void ieee80211_wake_vif_queues(struct ieee80211_local *local, 2059 struct ieee80211_sub_if_data *sdata, 2060 enum queue_stop_reason reason); 2061 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, 2062 unsigned long queues, 2063 enum queue_stop_reason reason, 2064 bool refcounted); 2065 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, 2066 enum queue_stop_reason reason, 2067 bool refcounted); 2068 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, 2069 enum queue_stop_reason reason, 2070 bool refcounted); 2071 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue); 2072 void ieee80211_add_pending_skb(struct ieee80211_local *local, 2073 struct sk_buff *skb); 2074 void ieee80211_add_pending_skbs(struct ieee80211_local *local, 2075 struct sk_buff_head *skbs); 2076 void ieee80211_flush_queues(struct ieee80211_local *local, 2077 struct ieee80211_sub_if_data *sdata, bool drop); 2078 void __ieee80211_flush_queues(struct ieee80211_local *local, 2079 struct ieee80211_sub_if_data *sdata, 2080 unsigned int queues, bool drop); 2081 2082 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local) 2083 { 2084 /* 2085 * It's unsafe to try to do any work during reconfigure flow. 2086 * When the flow ends the work will be requeued. 2087 */ 2088 if (local->in_reconfig) 2089 return false; 2090 2091 /* 2092 * If quiescing is set, we are racing with __ieee80211_suspend. 2093 * __ieee80211_suspend flushes the workers after setting quiescing, 2094 * and we check quiescing / suspended before enqueing new workers. 2095 * We should abort the worker to avoid the races below. 2096 */ 2097 if (local->quiescing) 2098 return false; 2099 2100 /* 2101 * We might already be suspended if the following scenario occurs: 2102 * __ieee80211_suspend Control path 2103 * 2104 * if (local->quiescing) 2105 * return; 2106 * local->quiescing = true; 2107 * flush_workqueue(); 2108 * queue_work(...); 2109 * local->suspended = true; 2110 * local->quiescing = false; 2111 * worker starts running... 2112 */ 2113 if (local->suspended) 2114 return false; 2115 2116 return true; 2117 } 2118 2119 int ieee80211_txq_setup_flows(struct ieee80211_local *local); 2120 void ieee80211_txq_set_params(struct ieee80211_local *local); 2121 void ieee80211_txq_teardown_flows(struct ieee80211_local *local); 2122 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata, 2123 struct sta_info *sta, 2124 struct txq_info *txq, int tid); 2125 void ieee80211_txq_purge(struct ieee80211_local *local, 2126 struct txq_info *txqi); 2127 void ieee80211_txq_remove_vlan(struct ieee80211_local *local, 2128 struct ieee80211_sub_if_data *sdata); 2129 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 2130 struct txq_info *txqi); 2131 void ieee80211_wake_txqs(struct tasklet_struct *t); 2132 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, 2133 u16 transaction, u16 auth_alg, u16 status, 2134 const u8 *extra, size_t extra_len, const u8 *bssid, 2135 const u8 *da, const u8 *key, u8 key_len, u8 key_idx, 2136 u32 tx_flags); 2137 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, 2138 const u8 *da, const u8 *bssid, 2139 u16 stype, u16 reason, 2140 bool send_frame, u8 *frame_buf); 2141 2142 enum { 2143 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0), 2144 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1), 2145 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2), 2146 }; 2147 2148 int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer, 2149 size_t buffer_len, 2150 struct ieee80211_scan_ies *ie_desc, 2151 const u8 *ie, size_t ie_len, 2152 u8 bands_used, u32 *rate_masks, 2153 struct cfg80211_chan_def *chandef, 2154 u32 flags); 2155 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, 2156 const u8 *src, const u8 *dst, 2157 u32 ratemask, 2158 struct ieee80211_channel *chan, 2159 const u8 *ssid, size_t ssid_len, 2160 const u8 *ie, size_t ie_len, 2161 u32 flags); 2162 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, 2163 struct ieee802_11_elems *elems, 2164 enum nl80211_band band, u32 *basic_rates); 2165 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2166 enum ieee80211_smps_mode smps_mode); 2167 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata); 2168 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata); 2169 2170 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset); 2171 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 2172 u16 cap); 2173 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 2174 const struct cfg80211_chan_def *chandef, 2175 u16 prot_mode, bool rifs_mode); 2176 void ieee80211_ie_build_wide_bw_cs(u8 *pos, 2177 const struct cfg80211_chan_def *chandef); 2178 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2179 u32 cap); 2180 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2181 const struct cfg80211_chan_def *chandef); 2182 u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype); 2183 u8 *ieee80211_ie_build_he_cap(u8 *pos, 2184 const struct ieee80211_sta_he_cap *he_cap, 2185 u8 *end); 2186 void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data *sdata, 2187 struct sk_buff *skb); 2188 u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef); 2189 int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef, 2190 const struct ieee80211_supported_band *sband, 2191 const u8 *srates, int srates_len, u32 *rates); 2192 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, 2193 struct sk_buff *skb, bool need_basic, 2194 enum nl80211_band band); 2195 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, 2196 struct sk_buff *skb, bool need_basic, 2197 enum nl80211_band band); 2198 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo); 2199 void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata, 2200 struct ieee80211_sta_s1g_cap *caps, 2201 struct sk_buff *skb); 2202 void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata, 2203 struct sk_buff *skb); 2204 2205 /* channel management */ 2206 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper, 2207 struct cfg80211_chan_def *chandef); 2208 bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info, 2209 const struct ieee80211_vht_operation *oper, 2210 const struct ieee80211_ht_operation *htop, 2211 struct cfg80211_chan_def *chandef); 2212 bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata, 2213 const struct ieee80211_he_operation *he_oper, 2214 struct cfg80211_chan_def *chandef); 2215 bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper, 2216 struct cfg80211_chan_def *chandef); 2217 u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c); 2218 2219 int __must_check 2220 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata, 2221 const struct cfg80211_chan_def *chandef, 2222 enum ieee80211_chanctx_mode mode); 2223 int __must_check 2224 ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata, 2225 const struct cfg80211_chan_def *chandef, 2226 enum ieee80211_chanctx_mode mode, 2227 bool radar_required); 2228 int __must_check 2229 ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata); 2230 int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata); 2231 2232 int __must_check 2233 ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata, 2234 const struct cfg80211_chan_def *chandef, 2235 u32 *changed); 2236 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata); 2237 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata); 2238 void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata, 2239 bool clear); 2240 int ieee80211_chanctx_refcount(struct ieee80211_local *local, 2241 struct ieee80211_chanctx *ctx); 2242 2243 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local, 2244 struct ieee80211_chanctx *chanctx); 2245 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local, 2246 struct ieee80211_chanctx *ctx); 2247 bool ieee80211_is_radar_required(struct ieee80211_local *local); 2248 2249 void ieee80211_dfs_cac_timer(unsigned long data); 2250 void ieee80211_dfs_cac_timer_work(struct work_struct *work); 2251 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local); 2252 void ieee80211_dfs_radar_detected_work(struct work_struct *work); 2253 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, 2254 struct cfg80211_csa_settings *csa_settings); 2255 2256 bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs); 2257 bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n); 2258 const struct ieee80211_cipher_scheme * 2259 ieee80211_cs_get(struct ieee80211_local *local, u32 cipher, 2260 enum nl80211_iftype iftype); 2261 int ieee80211_cs_headroom(struct ieee80211_local *local, 2262 struct cfg80211_crypto_settings *crypto, 2263 enum nl80211_iftype iftype); 2264 void ieee80211_recalc_dtim(struct ieee80211_local *local, 2265 struct ieee80211_sub_if_data *sdata); 2266 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, 2267 const struct cfg80211_chan_def *chandef, 2268 enum ieee80211_chanctx_mode chanmode, 2269 u8 radar_detect); 2270 int ieee80211_max_num_channels(struct ieee80211_local *local); 2271 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local, 2272 struct ieee80211_chanctx *ctx); 2273 2274 /* TDLS */ 2275 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 2276 const u8 *peer, u8 action_code, u8 dialog_token, 2277 u16 status_code, u32 peer_capability, 2278 bool initiator, const u8 *extra_ies, 2279 size_t extra_ies_len); 2280 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 2281 const u8 *peer, enum nl80211_tdls_operation oper); 2282 void ieee80211_tdls_peer_del_work(struct work_struct *wk); 2283 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev, 2284 const u8 *addr, u8 oper_class, 2285 struct cfg80211_chan_def *chandef); 2286 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy, 2287 struct net_device *dev, 2288 const u8 *addr); 2289 void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata); 2290 void ieee80211_tdls_chsw_work(struct work_struct *wk); 2291 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata, 2292 const u8 *peer, u16 reason); 2293 const char *ieee80211_get_reason_code_string(u16 reason_code); 2294 u16 ieee80211_encode_usf(int val); 2295 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, 2296 enum nl80211_iftype type); 2297 2298 extern const struct ethtool_ops ieee80211_ethtool_ops; 2299 2300 u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw, 2301 struct ieee80211_vif *vif, 2302 struct ieee80211_sta *pubsta, 2303 int len, bool ampdu); 2304 #ifdef CONFIG_MAC80211_NOINLINE 2305 #define debug_noinline noinline 2306 #else 2307 #define debug_noinline 2308 #endif 2309 2310 void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache); 2311 void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache); 2312 2313 #endif /* IEEE80211_I_H */ 2314