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 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent 54 * reception of at least three fragmented frames. This limit can be increased 55 * by changing this define, at the cost of slower frame reassembly and 56 * increased memory use (about 2 kB of RAM per entry). */ 57 #define IEEE80211_FRAGMENT_MAX 4 58 59 /* power level hasn't been configured (or set to automatic) */ 60 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN 61 62 /* 63 * Some APs experience problems when working with U-APSD. Decreasing the 64 * probability of that happening by using legacy mode for all ACs but VO isn't 65 * enough. 66 * 67 * Cisco 4410N originally forced us to enable VO by default only because it 68 * treated non-VO ACs as legacy. 69 * 70 * However some APs (notably Netgear R7000) silently reclassify packets to 71 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval 72 * clients would never see some frames (e.g. ARP responses) or would fetch them 73 * accidentally after a long time. 74 * 75 * It makes little sense to enable u-APSD queues by default because it needs 76 * userspace applications to be aware of it to actually take advantage of the 77 * possible additional powersavings. Implicitly depending on driver autotrigger 78 * frame support doesn't make much sense. 79 */ 80 #define IEEE80211_DEFAULT_UAPSD_QUEUES 0 81 82 #define IEEE80211_DEFAULT_MAX_SP_LEN \ 83 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 84 85 extern const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS]; 86 87 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */) 88 89 #define IEEE80211_MAX_NAN_INSTANCE_ID 255 90 91 struct ieee80211_fragment_entry { 92 struct sk_buff_head skb_list; 93 unsigned long first_frag_time; 94 u16 seq; 95 u16 extra_len; 96 u16 last_frag; 97 u8 rx_queue; 98 bool check_sequential_pn; /* needed for CCMP/GCMP */ 99 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */ 100 }; 101 102 103 struct ieee80211_bss { 104 u32 device_ts_beacon, device_ts_presp; 105 106 bool wmm_used; 107 bool uapsd_supported; 108 109 #define IEEE80211_MAX_SUPP_RATES 32 110 u8 supp_rates[IEEE80211_MAX_SUPP_RATES]; 111 size_t supp_rates_len; 112 struct ieee80211_rate *beacon_rate; 113 114 u32 vht_cap_info; 115 116 /* 117 * During association, we save an ERP value from a probe response so 118 * that we can feed ERP info to the driver when handling the 119 * association completes. these fields probably won't be up-to-date 120 * otherwise, you probably don't want to use them. 121 */ 122 bool has_erp_value; 123 u8 erp_value; 124 125 /* Keep track of the corruption of the last beacon/probe response. */ 126 u8 corrupt_data; 127 128 /* Keep track of what bits of information we have valid info for. */ 129 u8 valid_data; 130 }; 131 132 /** 133 * enum ieee80211_corrupt_data_flags - BSS data corruption flags 134 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted 135 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted 136 * 137 * These are bss flags that are attached to a bss in the 138 * @corrupt_data field of &struct ieee80211_bss. 139 */ 140 enum ieee80211_bss_corrupt_data_flags { 141 IEEE80211_BSS_CORRUPT_BEACON = BIT(0), 142 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1) 143 }; 144 145 /** 146 * enum ieee80211_valid_data_flags - BSS valid data flags 147 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE 148 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE 149 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE 150 * 151 * These are bss flags that are attached to a bss in the 152 * @valid_data field of &struct ieee80211_bss. They show which parts 153 * of the data structure were received as a result of an un-corrupted 154 * beacon/probe response. 155 */ 156 enum ieee80211_bss_valid_data_flags { 157 IEEE80211_BSS_VALID_WMM = BIT(1), 158 IEEE80211_BSS_VALID_RATES = BIT(2), 159 IEEE80211_BSS_VALID_ERP = BIT(3) 160 }; 161 162 typedef unsigned __bitwise ieee80211_tx_result; 163 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u) 164 #define TX_DROP ((__force ieee80211_tx_result) 1u) 165 #define TX_QUEUED ((__force ieee80211_tx_result) 2u) 166 167 #define IEEE80211_TX_NO_SEQNO BIT(0) 168 #define IEEE80211_TX_UNICAST BIT(1) 169 #define IEEE80211_TX_PS_BUFFERED BIT(2) 170 171 struct ieee80211_tx_data { 172 struct sk_buff *skb; 173 struct sk_buff_head skbs; 174 struct ieee80211_local *local; 175 struct ieee80211_sub_if_data *sdata; 176 struct sta_info *sta; 177 struct ieee80211_key *key; 178 struct ieee80211_tx_rate rate; 179 180 unsigned int flags; 181 }; 182 183 184 typedef unsigned __bitwise ieee80211_rx_result; 185 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u) 186 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u) 187 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u) 188 #define RX_QUEUED ((__force ieee80211_rx_result) 3u) 189 190 /** 191 * enum ieee80211_packet_rx_flags - packet RX flags 192 * @IEEE80211_RX_AMSDU: a-MSDU packet 193 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed 194 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering 195 * 196 * These are per-frame flags that are attached to a frame in the 197 * @rx_flags field of &struct ieee80211_rx_status. 198 */ 199 enum ieee80211_packet_rx_flags { 200 IEEE80211_RX_AMSDU = BIT(3), 201 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4), 202 IEEE80211_RX_DEFERRED_RELEASE = BIT(5), 203 }; 204 205 /** 206 * enum ieee80211_rx_flags - RX data flags 207 * 208 * @IEEE80211_RX_CMNTR: received on cooked monitor already 209 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported 210 * to cfg80211_report_obss_beacon(). 211 * 212 * These flags are used across handling multiple interfaces 213 * for a single frame. 214 */ 215 enum ieee80211_rx_flags { 216 IEEE80211_RX_CMNTR = BIT(0), 217 IEEE80211_RX_BEACON_REPORTED = BIT(1), 218 }; 219 220 struct ieee80211_rx_data { 221 struct napi_struct *napi; 222 struct sk_buff *skb; 223 struct ieee80211_local *local; 224 struct ieee80211_sub_if_data *sdata; 225 struct sta_info *sta; 226 struct ieee80211_key *key; 227 228 unsigned int flags; 229 230 /* 231 * Index into sequence numbers array, 0..16 232 * since the last (16) is used for non-QoS, 233 * will be 16 on non-QoS frames. 234 */ 235 int seqno_idx; 236 237 /* 238 * Index into the security IV/PN arrays, 0..16 239 * since the last (16) is used for CCMP-encrypted 240 * management frames, will be set to 16 on mgmt 241 * frames and 0 on non-QoS frames. 242 */ 243 int security_idx; 244 245 u32 tkip_iv32; 246 u16 tkip_iv16; 247 }; 248 249 struct ieee80211_csa_settings { 250 const u16 *counter_offsets_beacon; 251 const u16 *counter_offsets_presp; 252 253 int n_counter_offsets_beacon; 254 int n_counter_offsets_presp; 255 256 u8 count; 257 }; 258 259 struct beacon_data { 260 u8 *head, *tail; 261 int head_len, tail_len; 262 struct ieee80211_meshconf_ie *meshconf; 263 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM]; 264 u8 csa_current_counter; 265 struct rcu_head rcu_head; 266 }; 267 268 struct probe_resp { 269 struct rcu_head rcu_head; 270 int len; 271 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM]; 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; 290 291 /* to be used after channel switch. */ 292 struct cfg80211_beacon_data *next_beacon; 293 struct list_head vlans; /* write-protected with RTNL and local->mtx */ 294 295 struct ps_data ps; 296 atomic_t num_mcast_sta; /* number of stations receiving multicast */ 297 298 bool multicast_to_unicast; 299 }; 300 301 struct ieee80211_if_wds { 302 struct sta_info *sta; 303 u8 remote_addr[ETH_ALEN]; 304 }; 305 306 struct ieee80211_if_vlan { 307 struct list_head list; /* write-protected with RTNL and local->mtx */ 308 309 /* used for all tx if the VLAN is configured to 4-addr mode */ 310 struct sta_info __rcu *sta; 311 atomic_t num_mcast_sta; /* number of stations receiving multicast */ 312 }; 313 314 struct mesh_stats { 315 __u32 fwded_mcast; /* Mesh forwarded multicast frames */ 316 __u32 fwded_unicast; /* Mesh forwarded unicast frames */ 317 __u32 fwded_frames; /* Mesh total forwarded frames */ 318 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/ 319 __u32 dropped_frames_no_route; /* Not transmitted, no route found */ 320 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */ 321 }; 322 323 #define PREQ_Q_F_START 0x1 324 #define PREQ_Q_F_REFRESH 0x2 325 struct mesh_preq_queue { 326 struct list_head list; 327 u8 dst[ETH_ALEN]; 328 u8 flags; 329 }; 330 331 struct ieee80211_roc_work { 332 struct list_head list; 333 334 struct ieee80211_sub_if_data *sdata; 335 336 struct ieee80211_channel *chan; 337 338 bool started, abort, hw_begun, notified; 339 bool on_channel; 340 341 unsigned long start_time; 342 343 u32 duration, req_duration; 344 struct sk_buff *frame; 345 u64 cookie, mgmt_tx_cookie; 346 enum ieee80211_roc_type type; 347 }; 348 349 /* flags used in struct ieee80211_if_managed.flags */ 350 enum ieee80211_sta_flags { 351 IEEE80211_STA_CONNECTION_POLL = BIT(1), 352 IEEE80211_STA_CONTROL_PORT = BIT(2), 353 IEEE80211_STA_DISABLE_HT = BIT(4), 354 IEEE80211_STA_MFP_ENABLED = BIT(6), 355 IEEE80211_STA_UAPSD_ENABLED = BIT(7), 356 IEEE80211_STA_NULLFUNC_ACKED = BIT(8), 357 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9), 358 IEEE80211_STA_DISABLE_40MHZ = BIT(10), 359 IEEE80211_STA_DISABLE_VHT = BIT(11), 360 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12), 361 IEEE80211_STA_DISABLE_160MHZ = BIT(13), 362 IEEE80211_STA_DISABLE_WMM = BIT(14), 363 IEEE80211_STA_ENABLE_RRM = BIT(15), 364 IEEE80211_STA_DISABLE_HE = BIT(16), 365 }; 366 367 struct ieee80211_mgd_auth_data { 368 struct cfg80211_bss *bss; 369 unsigned long timeout; 370 int tries; 371 u16 algorithm, expected_transaction; 372 373 u8 key[WLAN_KEY_LEN_WEP104]; 374 u8 key_len, key_idx; 375 bool done; 376 bool peer_confirmed; 377 bool timeout_started; 378 379 u16 sae_trans, sae_status; 380 size_t data_len; 381 u8 data[]; 382 }; 383 384 struct ieee80211_mgd_assoc_data { 385 struct cfg80211_bss *bss; 386 const u8 *supp_rates; 387 388 unsigned long timeout; 389 int tries; 390 391 u16 capability; 392 u8 prev_bssid[ETH_ALEN]; 393 u8 ssid[IEEE80211_MAX_SSID_LEN]; 394 u8 ssid_len; 395 u8 supp_rates_len; 396 bool wmm, uapsd; 397 bool need_beacon; 398 bool synced; 399 bool timeout_started; 400 401 u8 ap_ht_param; 402 403 struct ieee80211_vht_cap ap_vht_cap; 404 405 u8 fils_nonces[2 * FILS_NONCE_LEN]; 406 u8 fils_kek[FILS_MAX_KEK_LEN]; 407 size_t fils_kek_len; 408 409 size_t ie_len; 410 u8 ie[]; 411 }; 412 413 struct ieee80211_sta_tx_tspec { 414 /* timestamp of the first packet in the time slice */ 415 unsigned long time_slice_start; 416 417 u32 admitted_time; /* in usecs, unlike over the air */ 418 u8 tsid; 419 s8 up; /* signed to be able to invalidate with -1 during teardown */ 420 421 /* consumed TX time in microseconds in the time slice */ 422 u32 consumed_tx_time; 423 enum { 424 TX_TSPEC_ACTION_NONE = 0, 425 TX_TSPEC_ACTION_DOWNGRADE, 426 TX_TSPEC_ACTION_STOP_DOWNGRADE, 427 } action; 428 bool downgraded; 429 }; 430 431 DECLARE_EWMA(beacon_signal, 4, 4) 432 433 struct ieee80211_if_managed { 434 struct timer_list timer; 435 struct timer_list conn_mon_timer; 436 struct timer_list bcn_mon_timer; 437 struct timer_list chswitch_timer; 438 struct work_struct monitor_work; 439 struct work_struct chswitch_work; 440 struct work_struct beacon_connection_loss_work; 441 struct work_struct csa_connection_drop_work; 442 443 unsigned long beacon_timeout; 444 unsigned long probe_timeout; 445 int probe_send_count; 446 bool nullfunc_failed; 447 bool connection_loss; 448 449 struct cfg80211_bss *associated; 450 struct ieee80211_mgd_auth_data *auth_data; 451 struct ieee80211_mgd_assoc_data *assoc_data; 452 453 u8 bssid[ETH_ALEN] __aligned(2); 454 455 bool powersave; /* powersave requested for this iface */ 456 bool broken_ap; /* AP is broken -- turn off powersave */ 457 bool have_beacon; 458 u8 dtim_period; 459 enum ieee80211_smps_mode req_smps, /* requested smps mode */ 460 driver_smps_mode; /* smps mode request */ 461 462 struct work_struct request_smps_work; 463 464 unsigned int flags; 465 466 bool csa_waiting_bcn; 467 bool csa_ignored_same_chan; 468 469 bool beacon_crc_valid; 470 u32 beacon_crc; 471 472 bool status_acked; 473 bool status_received; 474 __le16 status_fc; 475 476 enum { 477 IEEE80211_MFP_DISABLED, 478 IEEE80211_MFP_OPTIONAL, 479 IEEE80211_MFP_REQUIRED 480 } mfp; /* management frame protection */ 481 482 /* 483 * Bitmask of enabled u-apsd queues, 484 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association 485 * to take effect. 486 */ 487 unsigned int uapsd_queues; 488 489 /* 490 * Maximum number of buffered frames AP can deliver during a 491 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar. 492 * Needs a new association to take effect. 493 */ 494 unsigned int uapsd_max_sp_len; 495 496 int wmm_last_param_set; 497 int mu_edca_last_param_set; 498 499 u8 use_4addr; 500 501 s16 p2p_noa_index; 502 503 struct ewma_beacon_signal ave_beacon_signal; 504 505 /* 506 * Number of Beacon frames used in ave_beacon_signal. This can be used 507 * to avoid generating less reliable cqm events that would be based 508 * only on couple of received frames. 509 */ 510 unsigned int count_beacon_signal; 511 512 /* Number of times beacon loss was invoked. */ 513 unsigned int beacon_loss_count; 514 515 /* 516 * Last Beacon frame signal strength average (ave_beacon_signal / 16) 517 * that triggered a cqm event. 0 indicates that no event has been 518 * generated for the current association. 519 */ 520 int last_cqm_event_signal; 521 522 /* 523 * State variables for keeping track of RSSI of the AP currently 524 * connected to and informing driver when RSSI has gone 525 * below/above a certain threshold. 526 */ 527 int rssi_min_thold, rssi_max_thold; 528 int last_ave_beacon_signal; 529 530 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ 531 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ 532 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */ 533 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */ 534 535 /* TDLS support */ 536 u8 tdls_peer[ETH_ALEN] __aligned(2); 537 struct delayed_work tdls_peer_del_work; 538 struct sk_buff *orig_teardown_skb; /* The original teardown skb */ 539 struct sk_buff *teardown_skb; /* A copy to send through the AP */ 540 spinlock_t teardown_lock; /* To lock changing teardown_skb */ 541 bool tdls_chan_switch_prohibited; 542 bool tdls_wider_bw_prohibited; 543 544 /* WMM-AC TSPEC support */ 545 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS]; 546 /* Use a separate work struct so that we can do something here 547 * while the sdata->work is flushing the queues, for example. 548 * otherwise, in scenarios where we hardly get any traffic out 549 * on the BE queue, but there's a lot of VO traffic, we might 550 * get stuck in a downgraded situation and flush takes forever. 551 */ 552 struct delayed_work tx_tspec_wk; 553 554 /* Information elements from the last transmitted (Re)Association 555 * Request frame. 556 */ 557 u8 *assoc_req_ies; 558 size_t assoc_req_ies_len; 559 }; 560 561 struct ieee80211_if_ibss { 562 struct timer_list timer; 563 struct work_struct csa_connection_drop_work; 564 565 unsigned long last_scan_completed; 566 567 u32 basic_rates; 568 569 bool fixed_bssid; 570 bool fixed_channel; 571 bool privacy; 572 573 bool control_port; 574 bool userspace_handles_dfs; 575 576 u8 bssid[ETH_ALEN] __aligned(2); 577 u8 ssid[IEEE80211_MAX_SSID_LEN]; 578 u8 ssid_len, ie_len; 579 u8 *ie; 580 struct cfg80211_chan_def chandef; 581 582 unsigned long ibss_join_req; 583 /* probe response/beacon for IBSS */ 584 struct beacon_data __rcu *presp; 585 586 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ 587 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ 588 589 spinlock_t incomplete_lock; 590 struct list_head incomplete_stations; 591 592 enum { 593 IEEE80211_IBSS_MLME_SEARCH, 594 IEEE80211_IBSS_MLME_JOINED, 595 } state; 596 }; 597 598 /** 599 * struct ieee80211_if_ocb - OCB mode state 600 * 601 * @housekeeping_timer: timer for periodic invocation of a housekeeping task 602 * @wrkq_flags: OCB deferred task action 603 * @incomplete_lock: delayed STA insertion lock 604 * @incomplete_stations: list of STAs waiting for delayed insertion 605 * @joined: indication if the interface is connected to an OCB network 606 */ 607 struct ieee80211_if_ocb { 608 struct timer_list housekeeping_timer; 609 unsigned long wrkq_flags; 610 611 spinlock_t incomplete_lock; 612 struct list_head incomplete_stations; 613 614 bool joined; 615 }; 616 617 /** 618 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface 619 * 620 * these declarations define the interface, which enables 621 * vendor-specific mesh synchronization 622 * 623 */ 624 struct ieee802_11_elems; 625 struct ieee80211_mesh_sync_ops { 626 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, 627 u16 stype, 628 struct ieee80211_mgmt *mgmt, 629 struct ieee802_11_elems *elems, 630 struct ieee80211_rx_status *rx_status); 631 632 /* should be called with beacon_data under RCU read lock */ 633 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata, 634 struct beacon_data *beacon); 635 /* add other framework functions here */ 636 }; 637 638 struct mesh_csa_settings { 639 struct rcu_head rcu_head; 640 struct cfg80211_csa_settings settings; 641 }; 642 643 struct ieee80211_if_mesh { 644 struct timer_list housekeeping_timer; 645 struct timer_list mesh_path_timer; 646 struct timer_list mesh_path_root_timer; 647 648 unsigned long wrkq_flags; 649 unsigned long mbss_changed; 650 651 bool userspace_handles_dfs; 652 653 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN]; 654 size_t mesh_id_len; 655 /* Active Path Selection Protocol Identifier */ 656 u8 mesh_pp_id; 657 /* Active Path Selection Metric Identifier */ 658 u8 mesh_pm_id; 659 /* Congestion Control Mode Identifier */ 660 u8 mesh_cc_id; 661 /* Synchronization Protocol Identifier */ 662 u8 mesh_sp_id; 663 /* Authentication Protocol Identifier */ 664 u8 mesh_auth_id; 665 /* Local mesh Sequence Number */ 666 u32 sn; 667 /* Last used PREQ ID */ 668 u32 preq_id; 669 atomic_t mpaths; 670 /* Timestamp of last SN update */ 671 unsigned long last_sn_update; 672 /* Time when it's ok to send next PERR */ 673 unsigned long next_perr; 674 /* Timestamp of last PREQ sent */ 675 unsigned long last_preq; 676 struct mesh_rmc *rmc; 677 spinlock_t mesh_preq_queue_lock; 678 struct mesh_preq_queue preq_queue; 679 int preq_queue_len; 680 struct mesh_stats mshstats; 681 struct mesh_config mshcfg; 682 atomic_t estab_plinks; 683 u32 mesh_seqnum; 684 bool accepting_plinks; 685 int num_gates; 686 struct beacon_data __rcu *beacon; 687 const u8 *ie; 688 u8 ie_len; 689 enum { 690 IEEE80211_MESH_SEC_NONE = 0x0, 691 IEEE80211_MESH_SEC_AUTHED = 0x1, 692 IEEE80211_MESH_SEC_SECURED = 0x2, 693 } security; 694 bool user_mpm; 695 /* Extensible Synchronization Framework */ 696 const struct ieee80211_mesh_sync_ops *sync_ops; 697 s64 sync_offset_clockdrift_max; 698 spinlock_t sync_offset_lock; 699 /* mesh power save */ 700 enum nl80211_mesh_power_mode nonpeer_pm; 701 int ps_peers_light_sleep; 702 int ps_peers_deep_sleep; 703 struct ps_data ps; 704 /* Channel Switching Support */ 705 struct mesh_csa_settings __rcu *csa; 706 enum { 707 IEEE80211_MESH_CSA_ROLE_NONE, 708 IEEE80211_MESH_CSA_ROLE_INIT, 709 IEEE80211_MESH_CSA_ROLE_REPEATER, 710 } csa_role; 711 u8 chsw_ttl; 712 u16 pre_value; 713 714 /* offset from skb->data while building IE */ 715 int meshconf_offset; 716 717 struct mesh_table *mesh_paths; 718 struct mesh_table *mpp_paths; /* Store paths for MPP&MAP */ 719 int mesh_paths_generation; 720 int mpp_paths_generation; 721 }; 722 723 #ifdef CONFIG_MAC80211_MESH 724 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ 725 do { (msh)->mshstats.name++; } while (0) 726 #else 727 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ 728 do { } while (0) 729 #endif 730 731 /** 732 * enum ieee80211_sub_if_data_flags - virtual interface flags 733 * 734 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets 735 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode 736 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between 737 * associated stations and deliver multicast frames both 738 * back to wireless media and to the local net stack. 739 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume. 740 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver 741 */ 742 enum ieee80211_sub_if_data_flags { 743 IEEE80211_SDATA_ALLMULTI = BIT(0), 744 IEEE80211_SDATA_OPERATING_GMODE = BIT(2), 745 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3), 746 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4), 747 IEEE80211_SDATA_IN_DRIVER = BIT(5), 748 }; 749 750 /** 751 * enum ieee80211_sdata_state_bits - virtual interface state bits 752 * @SDATA_STATE_RUNNING: virtual interface is up & running; this 753 * mirrors netif_running() but is separate for interface type 754 * change handling while the interface is up 755 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel 756 * mode, so queues are stopped 757 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due 758 * to offchannel, reset when offchannel returns 759 */ 760 enum ieee80211_sdata_state_bits { 761 SDATA_STATE_RUNNING, 762 SDATA_STATE_OFFCHANNEL, 763 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, 764 }; 765 766 /** 767 * enum ieee80211_chanctx_mode - channel context configuration mode 768 * 769 * @IEEE80211_CHANCTX_SHARED: channel context may be used by 770 * multiple interfaces 771 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used 772 * only by a single interface. This can be used for example for 773 * non-fixed channel IBSS. 774 */ 775 enum ieee80211_chanctx_mode { 776 IEEE80211_CHANCTX_SHARED, 777 IEEE80211_CHANCTX_EXCLUSIVE 778 }; 779 780 /** 781 * enum ieee80211_chanctx_replace_state - channel context replacement state 782 * 783 * This is used for channel context in-place reservations that require channel 784 * context switch/swap. 785 * 786 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place 787 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced 788 * by a (not yet registered) channel context pointed by %replace_ctx. 789 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context 790 * replaces an existing channel context pointed to by %replace_ctx. 791 */ 792 enum ieee80211_chanctx_replace_state { 793 IEEE80211_CHANCTX_REPLACE_NONE, 794 IEEE80211_CHANCTX_WILL_BE_REPLACED, 795 IEEE80211_CHANCTX_REPLACES_OTHER, 796 }; 797 798 struct ieee80211_chanctx { 799 struct list_head list; 800 struct rcu_head rcu_head; 801 802 struct list_head assigned_vifs; 803 struct list_head reserved_vifs; 804 805 enum ieee80211_chanctx_replace_state replace_state; 806 struct ieee80211_chanctx *replace_ctx; 807 808 enum ieee80211_chanctx_mode mode; 809 bool driver_present; 810 811 struct ieee80211_chanctx_conf conf; 812 }; 813 814 struct mac80211_qos_map { 815 struct cfg80211_qos_map qos_map; 816 struct rcu_head rcu_head; 817 }; 818 819 enum txq_info_flags { 820 IEEE80211_TXQ_STOP, 821 IEEE80211_TXQ_AMPDU, 822 IEEE80211_TXQ_NO_AMSDU, 823 IEEE80211_TXQ_STOP_NETIF_TX, 824 }; 825 826 /** 827 * struct txq_info - per tid queue 828 * 829 * @tin: contains packets split into multiple flows 830 * @def_flow: used as a fallback flow when a packet destined to @tin hashes to 831 * a fq_flow which is already owned by a different tin 832 * @def_cvars: codel vars for @def_flow 833 * @frags: used to keep fragments created after dequeue 834 * @schedule_order: used with ieee80211_local->active_txqs 835 * @schedule_round: counter to prevent infinite loops on TXQ scheduling 836 */ 837 struct txq_info { 838 struct fq_tin tin; 839 struct fq_flow def_flow; 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 /* Fragment table for host-based reassembly */ 895 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX]; 896 unsigned int fragment_next; 897 898 /* TID bitmap for NoAck policy */ 899 u16 noack_map; 900 901 /* bit field of ACM bits (BIT(802.1D tag)) */ 902 u8 wmm_acm; 903 904 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + 905 NUM_DEFAULT_MGMT_KEYS + 906 NUM_DEFAULT_BEACON_KEYS]; 907 struct ieee80211_key __rcu *default_unicast_key; 908 struct ieee80211_key __rcu *default_multicast_key; 909 struct ieee80211_key __rcu *default_mgmt_key; 910 struct ieee80211_key __rcu *default_beacon_key; 911 912 u16 sequence_number; 913 __be16 control_port_protocol; 914 bool control_port_no_encrypt; 915 bool control_port_no_preauth; 916 bool control_port_over_nl80211; 917 int encrypt_headroom; 918 919 atomic_t num_tx_queued; 920 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS]; 921 struct mac80211_qos_map __rcu *qos_map; 922 923 struct work_struct csa_finalize_work; 924 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */ 925 struct cfg80211_chan_def csa_chandef; 926 927 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */ 928 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */ 929 930 /* context reservation -- protected with chanctx_mtx */ 931 struct ieee80211_chanctx *reserved_chanctx; 932 struct cfg80211_chan_def reserved_chandef; 933 bool reserved_radar_required; 934 bool reserved_ready; 935 936 /* used to reconfigure hardware SM PS */ 937 struct work_struct recalc_smps; 938 939 struct work_struct work; 940 struct sk_buff_head skb_queue; 941 942 u8 needed_rx_chains; 943 enum ieee80211_smps_mode smps_mode; 944 945 int user_power_level; /* in dBm */ 946 int ap_power_level; /* in dBm */ 947 948 bool radar_required; 949 struct delayed_work dfs_cac_timer_work; 950 951 /* 952 * AP this belongs to: self in AP mode and 953 * corresponding AP in VLAN mode, NULL for 954 * all others (might be needed later in IBSS) 955 */ 956 struct ieee80211_if_ap *bss; 957 958 /* bitmap of allowed (non-MCS) rate indexes for rate control */ 959 u32 rc_rateidx_mask[NUM_NL80211_BANDS]; 960 961 bool rc_has_mcs_mask[NUM_NL80211_BANDS]; 962 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN]; 963 964 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS]; 965 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX]; 966 967 /* Beacon frame (non-MCS) rate (as a bitmap) */ 968 u32 beacon_rateidx_mask[NUM_NL80211_BANDS]; 969 bool beacon_rate_set; 970 971 union { 972 struct ieee80211_if_ap ap; 973 struct ieee80211_if_wds wds; 974 struct ieee80211_if_vlan vlan; 975 struct ieee80211_if_managed mgd; 976 struct ieee80211_if_ibss ibss; 977 struct ieee80211_if_mesh mesh; 978 struct ieee80211_if_ocb ocb; 979 struct ieee80211_if_mntr mntr; 980 struct ieee80211_if_nan nan; 981 } u; 982 983 #ifdef CONFIG_MAC80211_DEBUGFS 984 struct { 985 struct dentry *subdir_stations; 986 struct dentry *default_unicast_key; 987 struct dentry *default_multicast_key; 988 struct dentry *default_mgmt_key; 989 struct dentry *default_beacon_key; 990 } debugfs; 991 #endif 992 993 bool hw_80211_encap; 994 995 /* must be last, dynamically sized area in this! */ 996 struct ieee80211_vif vif; 997 }; 998 999 static inline 1000 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p) 1001 { 1002 return container_of(p, struct ieee80211_sub_if_data, vif); 1003 } 1004 1005 static inline void sdata_lock(struct ieee80211_sub_if_data *sdata) 1006 __acquires(&sdata->wdev.mtx) 1007 { 1008 mutex_lock(&sdata->wdev.mtx); 1009 __acquire(&sdata->wdev.mtx); 1010 } 1011 1012 static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata) 1013 __releases(&sdata->wdev.mtx) 1014 { 1015 mutex_unlock(&sdata->wdev.mtx); 1016 __release(&sdata->wdev.mtx); 1017 } 1018 1019 #define sdata_dereference(p, sdata) \ 1020 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx)) 1021 1022 static inline void 1023 sdata_assert_lock(struct ieee80211_sub_if_data *sdata) 1024 { 1025 lockdep_assert_held(&sdata->wdev.mtx); 1026 } 1027 1028 static inline int 1029 ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef) 1030 { 1031 switch (chandef->width) { 1032 case NL80211_CHAN_WIDTH_5: 1033 return 2; 1034 case NL80211_CHAN_WIDTH_10: 1035 return 1; 1036 default: 1037 return 0; 1038 } 1039 } 1040 1041 static inline int 1042 ieee80211_vif_get_shift(struct ieee80211_vif *vif) 1043 { 1044 struct ieee80211_chanctx_conf *chanctx_conf; 1045 int shift = 0; 1046 1047 rcu_read_lock(); 1048 chanctx_conf = rcu_dereference(vif->chanctx_conf); 1049 if (chanctx_conf) 1050 shift = ieee80211_chandef_get_shift(&chanctx_conf->def); 1051 rcu_read_unlock(); 1052 1053 return shift; 1054 } 1055 1056 enum { 1057 IEEE80211_RX_MSG = 1, 1058 IEEE80211_TX_STATUS_MSG = 2, 1059 }; 1060 1061 enum queue_stop_reason { 1062 IEEE80211_QUEUE_STOP_REASON_DRIVER, 1063 IEEE80211_QUEUE_STOP_REASON_PS, 1064 IEEE80211_QUEUE_STOP_REASON_CSA, 1065 IEEE80211_QUEUE_STOP_REASON_AGGREGATION, 1066 IEEE80211_QUEUE_STOP_REASON_SUSPEND, 1067 IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 1068 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL, 1069 IEEE80211_QUEUE_STOP_REASON_FLUSH, 1070 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN, 1071 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID, 1072 1073 IEEE80211_QUEUE_STOP_REASONS, 1074 }; 1075 1076 #ifdef CONFIG_MAC80211_LEDS 1077 struct tpt_led_trigger { 1078 char name[32]; 1079 const struct ieee80211_tpt_blink *blink_table; 1080 unsigned int blink_table_len; 1081 struct timer_list timer; 1082 struct ieee80211_local *local; 1083 unsigned long prev_traffic; 1084 unsigned long tx_bytes, rx_bytes; 1085 unsigned int active, want; 1086 bool running; 1087 }; 1088 #endif 1089 1090 /** 1091 * mac80211 scan flags - currently active scan mode 1092 * 1093 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as 1094 * well be on the operating channel 1095 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to 1096 * determine if we are on the operating channel or not 1097 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating 1098 * channel. This should not interrupt normal traffic. 1099 * @SCAN_COMPLETED: Set for our scan work function when the driver reported 1100 * that the scan completed. 1101 * @SCAN_ABORTED: Set for our scan work function when the driver reported 1102 * a scan complete for an aborted scan. 1103 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being 1104 * cancelled. 1105 */ 1106 enum { 1107 SCAN_SW_SCANNING, 1108 SCAN_HW_SCANNING, 1109 SCAN_ONCHANNEL_SCANNING, 1110 SCAN_COMPLETED, 1111 SCAN_ABORTED, 1112 SCAN_HW_CANCELLED, 1113 }; 1114 1115 /** 1116 * enum mac80211_scan_state - scan state machine states 1117 * 1118 * @SCAN_DECISION: Main entry point to the scan state machine, this state 1119 * determines if we should keep on scanning or switch back to the 1120 * operating channel 1121 * @SCAN_SET_CHANNEL: Set the next channel to be scanned 1122 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses 1123 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to 1124 * send out data 1125 * @SCAN_RESUME: Resume the scan and scan the next channel 1126 * @SCAN_ABORT: Abort the scan and go back to operating channel 1127 */ 1128 enum mac80211_scan_state { 1129 SCAN_DECISION, 1130 SCAN_SET_CHANNEL, 1131 SCAN_SEND_PROBE, 1132 SCAN_SUSPEND, 1133 SCAN_RESUME, 1134 SCAN_ABORT, 1135 }; 1136 1137 struct ieee80211_local { 1138 /* embed the driver visible part. 1139 * don't cast (use the static inlines below), but we keep 1140 * it first anyway so they become a no-op */ 1141 struct ieee80211_hw hw; 1142 1143 struct fq fq; 1144 struct codel_vars *cvars; 1145 struct codel_params cparams; 1146 1147 /* protects active_txqs and txqi->schedule_order */ 1148 spinlock_t active_txq_lock[IEEE80211_NUM_ACS]; 1149 struct list_head active_txqs[IEEE80211_NUM_ACS]; 1150 u16 schedule_round[IEEE80211_NUM_ACS]; 1151 1152 u16 airtime_flags; 1153 u32 aql_txq_limit_low[IEEE80211_NUM_ACS]; 1154 u32 aql_txq_limit_high[IEEE80211_NUM_ACS]; 1155 u32 aql_threshold; 1156 atomic_t aql_total_pending_airtime; 1157 1158 const struct ieee80211_ops *ops; 1159 1160 /* 1161 * private workqueue to mac80211. mac80211 makes this accessible 1162 * via ieee80211_queue_work() 1163 */ 1164 struct workqueue_struct *workqueue; 1165 1166 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES]; 1167 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS]; 1168 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */ 1169 spinlock_t queue_stop_reason_lock; 1170 1171 int open_count; 1172 int monitors, cooked_mntrs; 1173 /* number of interfaces with corresponding FIF_ flags */ 1174 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll, 1175 fif_probe_req; 1176 bool probe_req_reg; 1177 bool rx_mcast_action_reg; 1178 unsigned int filter_flags; /* FIF_* */ 1179 1180 bool wiphy_ciphers_allocated; 1181 1182 bool use_chanctx; 1183 1184 /* protects the aggregated multicast list and filter calls */ 1185 spinlock_t filter_lock; 1186 1187 /* used for uploading changed mc list */ 1188 struct work_struct reconfig_filter; 1189 1190 /* aggregated multicast list */ 1191 struct netdev_hw_addr_list mc_list; 1192 1193 bool tim_in_locked_section; /* see ieee80211_beacon_get() */ 1194 1195 /* 1196 * suspended is true if we finished all the suspend _and_ we have 1197 * not yet come up from resume. This is to be used by mac80211 1198 * to ensure driver sanity during suspend and mac80211's own 1199 * sanity. It can eventually be used for WoW as well. 1200 */ 1201 bool suspended; 1202 1203 /* 1204 * Resuming is true while suspended, but when we're reprogramming the 1205 * hardware -- at that time it's allowed to use ieee80211_queue_work() 1206 * again even though some other parts of the stack are still suspended 1207 * and we still drop received frames to avoid waking the stack. 1208 */ 1209 bool resuming; 1210 1211 /* 1212 * quiescing is true during the suspend process _only_ to 1213 * ease timer cancelling etc. 1214 */ 1215 bool quiescing; 1216 1217 /* device is started */ 1218 bool started; 1219 1220 /* device is during a HW reconfig */ 1221 bool in_reconfig; 1222 1223 /* wowlan is enabled -- don't reconfig on resume */ 1224 bool wowlan; 1225 1226 struct work_struct radar_detected_work; 1227 1228 /* number of RX chains the hardware has */ 1229 u8 rx_chains; 1230 1231 /* bitmap of which sbands were copied */ 1232 u8 sband_allocated; 1233 1234 int tx_headroom; /* required headroom for hardware/radiotap */ 1235 1236 /* Tasklet and skb queue to process calls from IRQ mode. All frames 1237 * added to skb_queue will be processed, but frames in 1238 * skb_queue_unreliable may be dropped if the total length of these 1239 * queues increases over the limit. */ 1240 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128 1241 struct tasklet_struct tasklet; 1242 struct sk_buff_head skb_queue; 1243 struct sk_buff_head skb_queue_unreliable; 1244 1245 spinlock_t rx_path_lock; 1246 1247 /* Station data */ 1248 /* 1249 * The mutex only protects the list, hash table and 1250 * counter, reads are done with RCU. 1251 */ 1252 struct mutex sta_mtx; 1253 spinlock_t tim_lock; 1254 unsigned long num_sta; 1255 struct list_head sta_list; 1256 struct rhltable sta_hash; 1257 struct timer_list sta_cleanup; 1258 int sta_generation; 1259 1260 struct sk_buff_head pending[IEEE80211_MAX_QUEUES]; 1261 struct tasklet_struct tx_pending_tasklet; 1262 struct tasklet_struct wake_txqs_tasklet; 1263 1264 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES]; 1265 1266 /* number of interfaces with allmulti RX */ 1267 atomic_t iff_allmultis; 1268 1269 struct rate_control_ref *rate_ctrl; 1270 1271 struct arc4_ctx wep_tx_ctx; 1272 struct arc4_ctx wep_rx_ctx; 1273 u32 wep_iv; 1274 1275 /* see iface.c */ 1276 struct list_head interfaces; 1277 struct list_head mon_list; /* only that are IFF_UP && !cooked */ 1278 struct mutex iflist_mtx; 1279 1280 /* 1281 * Key mutex, protects sdata's key_list and sta_info's 1282 * key pointers and ptk_idx (write access, they're RCU.) 1283 */ 1284 struct mutex key_mtx; 1285 1286 /* mutex for scan and work locking */ 1287 struct mutex mtx; 1288 1289 /* Scanning and BSS list */ 1290 unsigned long scanning; 1291 struct cfg80211_ssid scan_ssid; 1292 struct cfg80211_scan_request *int_scan_req; 1293 struct cfg80211_scan_request __rcu *scan_req; 1294 struct ieee80211_scan_request *hw_scan_req; 1295 struct cfg80211_chan_def scan_chandef; 1296 enum nl80211_band hw_scan_band; 1297 int scan_channel_idx; 1298 int scan_ies_len; 1299 int hw_scan_ies_bufsize; 1300 struct cfg80211_scan_info scan_info; 1301 1302 struct work_struct sched_scan_stopped_work; 1303 struct ieee80211_sub_if_data __rcu *sched_scan_sdata; 1304 struct cfg80211_sched_scan_request __rcu *sched_scan_req; 1305 u8 scan_addr[ETH_ALEN]; 1306 1307 unsigned long leave_oper_channel_time; 1308 enum mac80211_scan_state next_scan_state; 1309 struct delayed_work scan_work; 1310 struct ieee80211_sub_if_data __rcu *scan_sdata; 1311 /* For backward compatibility only -- do not use */ 1312 struct cfg80211_chan_def _oper_chandef; 1313 1314 /* Temporary remain-on-channel for off-channel operations */ 1315 struct ieee80211_channel *tmp_channel; 1316 1317 /* channel contexts */ 1318 struct list_head chanctx_list; 1319 struct mutex chanctx_mtx; 1320 1321 #ifdef CONFIG_MAC80211_LEDS 1322 struct led_trigger tx_led, rx_led, assoc_led, radio_led; 1323 struct led_trigger tpt_led; 1324 atomic_t tx_led_active, rx_led_active, assoc_led_active; 1325 atomic_t radio_led_active, tpt_led_active; 1326 struct tpt_led_trigger *tpt_led_trigger; 1327 #endif 1328 1329 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS 1330 /* SNMP counters */ 1331 /* dot11CountersTable */ 1332 u32 dot11TransmittedFragmentCount; 1333 u32 dot11MulticastTransmittedFrameCount; 1334 u32 dot11FailedCount; 1335 u32 dot11RetryCount; 1336 u32 dot11MultipleRetryCount; 1337 u32 dot11FrameDuplicateCount; 1338 u32 dot11ReceivedFragmentCount; 1339 u32 dot11MulticastReceivedFrameCount; 1340 u32 dot11TransmittedFrameCount; 1341 1342 /* TX/RX handler statistics */ 1343 unsigned int tx_handlers_drop; 1344 unsigned int tx_handlers_queued; 1345 unsigned int tx_handlers_drop_wep; 1346 unsigned int tx_handlers_drop_not_assoc; 1347 unsigned int tx_handlers_drop_unauth_port; 1348 unsigned int rx_handlers_drop; 1349 unsigned int rx_handlers_queued; 1350 unsigned int rx_handlers_drop_nullfunc; 1351 unsigned int rx_handlers_drop_defrag; 1352 unsigned int tx_expand_skb_head; 1353 unsigned int tx_expand_skb_head_cloned; 1354 unsigned int rx_expand_skb_head_defrag; 1355 unsigned int rx_handlers_fragments; 1356 unsigned int tx_status_drop; 1357 #define I802_DEBUG_INC(c) (c)++ 1358 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */ 1359 #define I802_DEBUG_INC(c) do { } while (0) 1360 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */ 1361 1362 1363 int total_ps_buffered; /* total number of all buffered unicast and 1364 * multicast packets for power saving stations 1365 */ 1366 1367 bool pspolling; 1368 bool offchannel_ps_enabled; 1369 /* 1370 * PS can only be enabled when we have exactly one managed 1371 * interface (and monitors) in PS, this then points there. 1372 */ 1373 struct ieee80211_sub_if_data *ps_sdata; 1374 struct work_struct dynamic_ps_enable_work; 1375 struct work_struct dynamic_ps_disable_work; 1376 struct timer_list dynamic_ps_timer; 1377 struct notifier_block ifa_notifier; 1378 struct notifier_block ifa6_notifier; 1379 1380 /* 1381 * The dynamic ps timeout configured from user space via WEXT - 1382 * this will override whatever chosen by mac80211 internally. 1383 */ 1384 int dynamic_ps_forced_timeout; 1385 1386 int user_power_level; /* in dBm, for all interfaces */ 1387 1388 enum ieee80211_smps_mode smps_mode; 1389 1390 struct work_struct restart_work; 1391 1392 #ifdef CONFIG_MAC80211_DEBUGFS 1393 struct local_debugfsdentries { 1394 struct dentry *rcdir; 1395 struct dentry *keys; 1396 } debugfs; 1397 bool force_tx_status; 1398 #endif 1399 1400 /* 1401 * Remain-on-channel support 1402 */ 1403 struct delayed_work roc_work; 1404 struct list_head roc_list; 1405 struct work_struct hw_roc_start, hw_roc_done; 1406 unsigned long hw_roc_start_time; 1407 u64 roc_cookie_counter; 1408 1409 struct idr ack_status_frames; 1410 spinlock_t ack_status_lock; 1411 1412 struct ieee80211_sub_if_data __rcu *p2p_sdata; 1413 1414 /* virtual monitor interface */ 1415 struct ieee80211_sub_if_data __rcu *monitor_sdata; 1416 struct cfg80211_chan_def monitor_chandef; 1417 1418 /* extended capabilities provided by mac80211 */ 1419 u8 ext_capa[8]; 1420 1421 /* TDLS channel switch */ 1422 struct work_struct tdls_chsw_work; 1423 struct sk_buff_head skb_queue_tdls_chsw; 1424 }; 1425 1426 static inline struct ieee80211_sub_if_data * 1427 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev) 1428 { 1429 return netdev_priv(dev); 1430 } 1431 1432 static inline struct ieee80211_sub_if_data * 1433 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev) 1434 { 1435 return container_of(wdev, struct ieee80211_sub_if_data, wdev); 1436 } 1437 1438 static inline struct ieee80211_supported_band * 1439 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata) 1440 { 1441 struct ieee80211_local *local = sdata->local; 1442 struct ieee80211_chanctx_conf *chanctx_conf; 1443 enum nl80211_band band; 1444 1445 rcu_read_lock(); 1446 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 1447 1448 if (WARN_ON_ONCE(!chanctx_conf)) { 1449 rcu_read_unlock(); 1450 return NULL; 1451 } 1452 1453 band = chanctx_conf->def.chan->band; 1454 rcu_read_unlock(); 1455 1456 return local->hw.wiphy->bands[band]; 1457 } 1458 1459 /* this struct holds the value parsing from channel switch IE */ 1460 struct ieee80211_csa_ie { 1461 struct cfg80211_chan_def chandef; 1462 u8 mode; 1463 u8 count; 1464 u8 ttl; 1465 u16 pre_value; 1466 u16 reason_code; 1467 u32 max_switch_time; 1468 }; 1469 1470 /* Parsed Information Elements */ 1471 struct ieee802_11_elems { 1472 const u8 *ie_start; 1473 size_t total_len; 1474 1475 /* pointers to IEs */ 1476 const struct ieee80211_tdls_lnkie *lnk_id; 1477 const struct ieee80211_ch_switch_timing *ch_sw_timing; 1478 const u8 *ext_capab; 1479 const u8 *ssid; 1480 const u8 *supp_rates; 1481 const u8 *ds_params; 1482 const struct ieee80211_tim_ie *tim; 1483 const u8 *challenge; 1484 const u8 *rsn; 1485 const u8 *rsnx; 1486 const u8 *erp_info; 1487 const u8 *ext_supp_rates; 1488 const u8 *wmm_info; 1489 const u8 *wmm_param; 1490 const struct ieee80211_ht_cap *ht_cap_elem; 1491 const struct ieee80211_ht_operation *ht_operation; 1492 const struct ieee80211_vht_cap *vht_cap_elem; 1493 const struct ieee80211_vht_operation *vht_operation; 1494 const struct ieee80211_meshconf_ie *mesh_config; 1495 const u8 *he_cap; 1496 const struct ieee80211_he_operation *he_operation; 1497 const struct ieee80211_he_spr *he_spr; 1498 const struct ieee80211_mu_edca_param_set *mu_edca_param_set; 1499 const struct ieee80211_he_6ghz_capa *he_6ghz_capa; 1500 const u8 *uora_element; 1501 const u8 *mesh_id; 1502 const u8 *peering; 1503 const __le16 *awake_window; 1504 const u8 *preq; 1505 const u8 *prep; 1506 const u8 *perr; 1507 const struct ieee80211_rann_ie *rann; 1508 const struct ieee80211_channel_sw_ie *ch_switch_ie; 1509 const struct ieee80211_ext_chansw_ie *ext_chansw_ie; 1510 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie; 1511 const u8 *max_channel_switch_time; 1512 const u8 *country_elem; 1513 const u8 *pwr_constr_elem; 1514 const u8 *cisco_dtpc_elem; 1515 const struct ieee80211_timeout_interval_ie *timeout_int; 1516 const u8 *opmode_notif; 1517 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs; 1518 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie; 1519 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie; 1520 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie; 1521 const struct ieee80211_bssid_index *bssid_index; 1522 u8 max_bssid_indicator; 1523 u8 dtim_count; 1524 u8 dtim_period; 1525 const struct ieee80211_addba_ext_ie *addba_ext_ie; 1526 1527 /* length of them, respectively */ 1528 u8 ext_capab_len; 1529 u8 ssid_len; 1530 u8 supp_rates_len; 1531 u8 tim_len; 1532 u8 challenge_len; 1533 u8 rsn_len; 1534 u8 rsnx_len; 1535 u8 ext_supp_rates_len; 1536 u8 wmm_info_len; 1537 u8 wmm_param_len; 1538 u8 he_cap_len; 1539 u8 mesh_id_len; 1540 u8 peering_len; 1541 u8 preq_len; 1542 u8 prep_len; 1543 u8 perr_len; 1544 u8 country_elem_len; 1545 u8 bssid_index_len; 1546 1547 /* whether a parse error occurred while retrieving these elements */ 1548 bool parse_error; 1549 }; 1550 1551 static inline struct ieee80211_local *hw_to_local( 1552 struct ieee80211_hw *hw) 1553 { 1554 return container_of(hw, struct ieee80211_local, hw); 1555 } 1556 1557 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq) 1558 { 1559 return container_of(txq, struct txq_info, txq); 1560 } 1561 1562 static inline bool txq_has_queue(struct ieee80211_txq *txq) 1563 { 1564 struct txq_info *txqi = to_txq_info(txq); 1565 1566 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets); 1567 } 1568 1569 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr) 1570 { 1571 return ether_addr_equal(raddr, addr) || 1572 is_broadcast_ether_addr(raddr); 1573 } 1574 1575 static inline bool 1576 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status) 1577 { 1578 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START && 1579 status->flag & RX_FLAG_MACTIME_END); 1580 if (status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END)) 1581 return true; 1582 /* can't handle non-legacy preamble yet */ 1583 if (status->flag & RX_FLAG_MACTIME_PLCP_START && 1584 status->encoding == RX_ENC_LEGACY) 1585 return true; 1586 return false; 1587 } 1588 1589 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata); 1590 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata); 1591 1592 /* This function returns the number of multicast stations connected to this 1593 * interface. It returns -1 if that number is not tracked, that is for netdevs 1594 * not in AP or AP_VLAN mode or when using 4addr. 1595 */ 1596 static inline int 1597 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata) 1598 { 1599 if (sdata->vif.type == NL80211_IFTYPE_AP) 1600 return atomic_read(&sdata->u.ap.num_mcast_sta); 1601 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta) 1602 return atomic_read(&sdata->u.vlan.num_mcast_sta); 1603 return -1; 1604 } 1605 1606 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, 1607 struct ieee80211_rx_status *status, 1608 unsigned int mpdu_len, 1609 unsigned int mpdu_offset); 1610 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed); 1611 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); 1612 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, 1613 u32 changed); 1614 void ieee80211_configure_filter(struct ieee80211_local *local); 1615 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata); 1616 1617 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local); 1618 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 1619 u64 *cookie, gfp_t gfp); 1620 1621 void ieee80211_check_fast_rx(struct sta_info *sta); 1622 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata); 1623 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata); 1624 void ieee80211_clear_fast_rx(struct sta_info *sta); 1625 1626 /* STA code */ 1627 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata); 1628 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, 1629 struct cfg80211_auth_request *req); 1630 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, 1631 struct cfg80211_assoc_request *req); 1632 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, 1633 struct cfg80211_deauth_request *req); 1634 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, 1635 struct cfg80211_disassoc_request *req); 1636 void ieee80211_send_pspoll(struct ieee80211_local *local, 1637 struct ieee80211_sub_if_data *sdata); 1638 void ieee80211_recalc_ps(struct ieee80211_local *local); 1639 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata); 1640 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata); 1641 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata); 1642 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 1643 struct sk_buff *skb); 1644 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata); 1645 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata); 1646 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata); 1647 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata, 1648 __le16 fc, bool acked); 1649 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata); 1650 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata); 1651 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata); 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 1772 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata) 1773 { 1774 return test_bit(SDATA_STATE_RUNNING, &sdata->state); 1775 } 1776 1777 /* tx handling */ 1778 void ieee80211_clear_tx_pending(struct ieee80211_local *local); 1779 void ieee80211_tx_pending(unsigned long data); 1780 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb, 1781 struct net_device *dev); 1782 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, 1783 struct net_device *dev); 1784 netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb, 1785 struct net_device *dev); 1786 void __ieee80211_subif_start_xmit(struct sk_buff *skb, 1787 struct net_device *dev, 1788 u32 info_flags, 1789 u32 ctrl_flags, 1790 u64 *cookie); 1791 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw, 1792 struct sk_buff_head *skbs); 1793 struct sk_buff * 1794 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata, 1795 struct sk_buff *skb, u32 info_flags); 1796 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb, 1797 struct ieee80211_supported_band *sband, 1798 int retry_count, int shift, bool send_to_cooked, 1799 struct ieee80211_tx_status *status); 1800 1801 void ieee80211_check_fast_xmit(struct sta_info *sta); 1802 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local); 1803 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata); 1804 void ieee80211_clear_fast_xmit(struct sta_info *sta); 1805 int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev, 1806 const u8 *buf, size_t len, 1807 const u8 *dest, __be16 proto, bool unencrypted, 1808 u64 *cookie); 1809 int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev, 1810 const u8 *buf, size_t len); 1811 1812 /* HT */ 1813 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, 1814 struct ieee80211_sta_ht_cap *ht_cap); 1815 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, 1816 struct ieee80211_supported_band *sband, 1817 const struct ieee80211_ht_cap *ht_cap_ie, 1818 struct sta_info *sta); 1819 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, 1820 const u8 *da, u16 tid, 1821 u16 initiator, u16 reason_code); 1822 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata, 1823 enum ieee80211_smps_mode smps, const u8 *da, 1824 const u8 *bssid); 1825 void ieee80211_request_smps_ap_work(struct work_struct *work); 1826 void ieee80211_request_smps_mgd_work(struct work_struct *work); 1827 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old, 1828 enum ieee80211_smps_mode smps_mode_new); 1829 1830 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, 1831 u16 initiator, u16 reason, bool stop); 1832 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, 1833 u16 initiator, u16 reason, bool stop); 1834 void ___ieee80211_start_rx_ba_session(struct sta_info *sta, 1835 u8 dialog_token, u16 timeout, 1836 u16 start_seq_num, u16 ba_policy, u16 tid, 1837 u16 buf_size, bool tx, bool auto_seq, 1838 const struct ieee80211_addba_ext_ie *addbaext); 1839 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, 1840 enum ieee80211_agg_stop_reason reason); 1841 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, 1842 struct sta_info *sta, 1843 struct ieee80211_mgmt *mgmt, size_t len); 1844 void ieee80211_process_addba_resp(struct ieee80211_local *local, 1845 struct sta_info *sta, 1846 struct ieee80211_mgmt *mgmt, 1847 size_t len); 1848 void ieee80211_process_addba_request(struct ieee80211_local *local, 1849 struct sta_info *sta, 1850 struct ieee80211_mgmt *mgmt, 1851 size_t len); 1852 1853 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, 1854 enum ieee80211_agg_stop_reason reason); 1855 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, 1856 enum ieee80211_agg_stop_reason reason); 1857 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid, 1858 struct tid_ampdu_tx *tid_tx); 1859 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid, 1860 struct tid_ampdu_tx *tid_tx); 1861 void ieee80211_ba_session_work(struct work_struct *work); 1862 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid); 1863 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid); 1864 1865 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs); 1866 enum nl80211_smps_mode 1867 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps); 1868 1869 /* VHT */ 1870 void 1871 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, 1872 struct ieee80211_supported_band *sband, 1873 const struct ieee80211_vht_cap *vht_cap_ie, 1874 struct sta_info *sta); 1875 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta); 1876 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta); 1877 void ieee80211_sta_set_rx_nss(struct sta_info *sta); 1878 enum ieee80211_sta_rx_bandwidth 1879 ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width); 1880 enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta); 1881 void ieee80211_sta_set_rx_nss(struct sta_info *sta); 1882 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata, 1883 struct ieee80211_mgmt *mgmt); 1884 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, 1885 struct sta_info *sta, u8 opmode, 1886 enum nl80211_band band); 1887 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, 1888 struct sta_info *sta, u8 opmode, 1889 enum nl80211_band band); 1890 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata, 1891 struct ieee80211_sta_vht_cap *vht_cap); 1892 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap, 1893 u16 vht_mask[NL80211_VHT_NSS_MAX]); 1894 enum nl80211_chan_width 1895 ieee80211_sta_rx_bw_to_chan_width(struct sta_info *sta); 1896 1897 /* HE */ 1898 void 1899 ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata, 1900 struct ieee80211_supported_band *sband, 1901 const u8 *he_cap_ie, u8 he_cap_len, 1902 const struct ieee80211_he_6ghz_capa *he_6ghz_capa, 1903 struct sta_info *sta); 1904 void 1905 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif, 1906 const struct ieee80211_he_spr *he_spr_ie_elem); 1907 1908 void 1909 ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif, 1910 const struct ieee80211_he_operation *he_op_ie_elem); 1911 1912 /* Spectrum management */ 1913 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, 1914 struct ieee80211_mgmt *mgmt, 1915 size_t len); 1916 /** 1917 * ieee80211_parse_ch_switch_ie - parses channel switch IEs 1918 * @sdata: the sdata of the interface which has received the frame 1919 * @elems: parsed 802.11 elements received with the frame 1920 * @current_band: indicates the current band 1921 * @vht_cap_info: VHT capabilities of the transmitter 1922 * @sta_flags: contains information about own capabilities and restrictions 1923 * to decide which channel switch announcements can be accepted. Only the 1924 * following subset of &enum ieee80211_sta_flags are evaluated: 1925 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT, 1926 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ, 1927 * %IEEE80211_STA_DISABLE_160MHZ. 1928 * @bssid: the currently connected bssid (for reporting) 1929 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl. 1930 All of them will be filled with if success only. 1931 * Return: 0 on success, <0 on error and >0 if there is nothing to parse. 1932 */ 1933 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata, 1934 struct ieee802_11_elems *elems, 1935 enum nl80211_band current_band, 1936 u32 vht_cap_info, 1937 u32 sta_flags, u8 *bssid, 1938 struct ieee80211_csa_ie *csa_ie); 1939 1940 /* Suspend/resume and hw reconfiguration */ 1941 int ieee80211_reconfig(struct ieee80211_local *local); 1942 void ieee80211_stop_device(struct ieee80211_local *local); 1943 1944 int __ieee80211_suspend(struct ieee80211_hw *hw, 1945 struct cfg80211_wowlan *wowlan); 1946 1947 static inline int __ieee80211_resume(struct ieee80211_hw *hw) 1948 { 1949 struct ieee80211_local *local = hw_to_local(hw); 1950 1951 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) && 1952 !test_bit(SCAN_COMPLETED, &local->scanning), 1953 "%s: resume with hardware scan still in progress\n", 1954 wiphy_name(hw->wiphy)); 1955 1956 return ieee80211_reconfig(hw_to_local(hw)); 1957 } 1958 1959 /* utility functions/constants */ 1960 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */ 1961 int ieee80211_frame_duration(enum nl80211_band band, size_t len, 1962 int rate, int erp, int short_preamble, 1963 int shift); 1964 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, 1965 struct ieee80211_tx_queue_params *qparam, 1966 int ac); 1967 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, 1968 bool bss_notify, bool enable_qos); 1969 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, 1970 struct sta_info *sta, struct sk_buff *skb, 1971 u32 txdata_flags); 1972 1973 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, 1974 struct sk_buff *skb, int tid, 1975 enum nl80211_band band, u32 txdata_flags); 1976 1977 /* sta_out needs to be checked for ERR_PTR() before using */ 1978 int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata, 1979 struct sk_buff *skb, 1980 struct sta_info **sta_out); 1981 1982 static inline void 1983 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, 1984 struct sk_buff *skb, int tid, 1985 enum nl80211_band band, u32 txdata_flags) 1986 { 1987 rcu_read_lock(); 1988 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band, txdata_flags); 1989 rcu_read_unlock(); 1990 } 1991 1992 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata, 1993 struct sk_buff *skb, int tid) 1994 { 1995 struct ieee80211_chanctx_conf *chanctx_conf; 1996 1997 rcu_read_lock(); 1998 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 1999 if (WARN_ON(!chanctx_conf)) { 2000 rcu_read_unlock(); 2001 kfree_skb(skb); 2002 return; 2003 } 2004 2005 __ieee80211_tx_skb_tid_band(sdata, skb, tid, 2006 chanctx_conf->def.chan->band, 0); 2007 rcu_read_unlock(); 2008 } 2009 2010 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, 2011 struct sk_buff *skb) 2012 { 2013 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */ 2014 ieee80211_tx_skb_tid(sdata, skb, 7); 2015 } 2016 2017 u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, 2018 struct ieee802_11_elems *elems, 2019 u64 filter, u32 crc, u8 *transmitter_bssid, 2020 u8 *bss_bssid); 2021 static inline void ieee802_11_parse_elems(const u8 *start, size_t len, 2022 bool action, 2023 struct ieee802_11_elems *elems, 2024 u8 *transmitter_bssid, 2025 u8 *bss_bssid) 2026 { 2027 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0, 2028 transmitter_bssid, bss_bssid); 2029 } 2030 2031 2032 extern const int ieee802_1d_to_ac[8]; 2033 2034 static inline int ieee80211_ac_from_tid(int tid) 2035 { 2036 return ieee802_1d_to_ac[tid & 7]; 2037 } 2038 2039 void ieee80211_dynamic_ps_enable_work(struct work_struct *work); 2040 void ieee80211_dynamic_ps_disable_work(struct work_struct *work); 2041 void ieee80211_dynamic_ps_timer(struct timer_list *t); 2042 void ieee80211_send_nullfunc(struct ieee80211_local *local, 2043 struct ieee80211_sub_if_data *sdata, 2044 bool powersave); 2045 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata, 2046 struct ieee80211_hdr *hdr); 2047 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata, 2048 struct ieee80211_hdr *hdr, bool ack, u16 tx_time); 2049 2050 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, 2051 unsigned long queues, 2052 enum queue_stop_reason reason, 2053 bool refcounted); 2054 void ieee80211_stop_vif_queues(struct ieee80211_local *local, 2055 struct ieee80211_sub_if_data *sdata, 2056 enum queue_stop_reason reason); 2057 void ieee80211_wake_vif_queues(struct ieee80211_local *local, 2058 struct ieee80211_sub_if_data *sdata, 2059 enum queue_stop_reason reason); 2060 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, 2061 unsigned long queues, 2062 enum queue_stop_reason reason, 2063 bool refcounted); 2064 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, 2065 enum queue_stop_reason reason, 2066 bool refcounted); 2067 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, 2068 enum queue_stop_reason reason, 2069 bool refcounted); 2070 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue); 2071 void ieee80211_add_pending_skb(struct ieee80211_local *local, 2072 struct sk_buff *skb); 2073 void ieee80211_add_pending_skbs(struct ieee80211_local *local, 2074 struct sk_buff_head *skbs); 2075 void ieee80211_flush_queues(struct ieee80211_local *local, 2076 struct ieee80211_sub_if_data *sdata, bool drop); 2077 void __ieee80211_flush_queues(struct ieee80211_local *local, 2078 struct ieee80211_sub_if_data *sdata, 2079 unsigned int queues, bool drop); 2080 2081 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local) 2082 { 2083 /* 2084 * It's unsafe to try to do any work during reconfigure flow. 2085 * When the flow ends the work will be requeued. 2086 */ 2087 if (local->in_reconfig) 2088 return false; 2089 2090 /* 2091 * If quiescing is set, we are racing with __ieee80211_suspend. 2092 * __ieee80211_suspend flushes the workers after setting quiescing, 2093 * and we check quiescing / suspended before enqueing new workers. 2094 * We should abort the worker to avoid the races below. 2095 */ 2096 if (local->quiescing) 2097 return false; 2098 2099 /* 2100 * We might already be suspended if the following scenario occurs: 2101 * __ieee80211_suspend Control path 2102 * 2103 * if (local->quiescing) 2104 * return; 2105 * local->quiescing = true; 2106 * flush_workqueue(); 2107 * queue_work(...); 2108 * local->suspended = true; 2109 * local->quiescing = false; 2110 * worker starts running... 2111 */ 2112 if (local->suspended) 2113 return false; 2114 2115 return true; 2116 } 2117 2118 int ieee80211_txq_setup_flows(struct ieee80211_local *local); 2119 void ieee80211_txq_set_params(struct ieee80211_local *local); 2120 void ieee80211_txq_teardown_flows(struct ieee80211_local *local); 2121 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata, 2122 struct sta_info *sta, 2123 struct txq_info *txq, int tid); 2124 void ieee80211_txq_purge(struct ieee80211_local *local, 2125 struct txq_info *txqi); 2126 void ieee80211_txq_remove_vlan(struct ieee80211_local *local, 2127 struct ieee80211_sub_if_data *sdata); 2128 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 2129 struct txq_info *txqi); 2130 void ieee80211_wake_txqs(unsigned long data); 2131 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, 2132 u16 transaction, u16 auth_alg, u16 status, 2133 const u8 *extra, size_t extra_len, const u8 *bssid, 2134 const u8 *da, const u8 *key, u8 key_len, u8 key_idx, 2135 u32 tx_flags); 2136 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, 2137 const u8 *da, const u8 *bssid, 2138 u16 stype, u16 reason, 2139 bool send_frame, u8 *frame_buf); 2140 2141 enum { 2142 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0), 2143 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1), 2144 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2), 2145 }; 2146 2147 int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer, 2148 size_t buffer_len, 2149 struct ieee80211_scan_ies *ie_desc, 2150 const u8 *ie, size_t ie_len, 2151 u8 bands_used, u32 *rate_masks, 2152 struct cfg80211_chan_def *chandef, 2153 u32 flags); 2154 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, 2155 const u8 *src, const u8 *dst, 2156 u32 ratemask, 2157 struct ieee80211_channel *chan, 2158 const u8 *ssid, size_t ssid_len, 2159 const u8 *ie, size_t ie_len, 2160 u32 flags); 2161 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, 2162 struct ieee802_11_elems *elems, 2163 enum nl80211_band band, u32 *basic_rates); 2164 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2165 enum ieee80211_smps_mode smps_mode); 2166 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata); 2167 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata); 2168 2169 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset); 2170 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 2171 u16 cap); 2172 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 2173 const struct cfg80211_chan_def *chandef, 2174 u16 prot_mode, bool rifs_mode); 2175 void ieee80211_ie_build_wide_bw_cs(u8 *pos, 2176 const struct cfg80211_chan_def *chandef); 2177 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2178 u32 cap); 2179 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 2180 const struct cfg80211_chan_def *chandef); 2181 u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype); 2182 u8 *ieee80211_ie_build_he_cap(u8 *pos, 2183 const struct ieee80211_sta_he_cap *he_cap, 2184 u8 *end); 2185 void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data *sdata, 2186 struct sk_buff *skb); 2187 u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef); 2188 int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef, 2189 const struct ieee80211_supported_band *sband, 2190 const u8 *srates, int srates_len, u32 *rates); 2191 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, 2192 struct sk_buff *skb, bool need_basic, 2193 enum nl80211_band band); 2194 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, 2195 struct sk_buff *skb, bool need_basic, 2196 enum nl80211_band band); 2197 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo); 2198 2199 /* channel management */ 2200 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper, 2201 struct cfg80211_chan_def *chandef); 2202 bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info, 2203 const struct ieee80211_vht_operation *oper, 2204 const struct ieee80211_ht_operation *htop, 2205 struct cfg80211_chan_def *chandef); 2206 bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata, 2207 const struct ieee80211_he_operation *he_oper, 2208 struct cfg80211_chan_def *chandef); 2209 u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c); 2210 2211 int __must_check 2212 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata, 2213 const struct cfg80211_chan_def *chandef, 2214 enum ieee80211_chanctx_mode mode); 2215 int __must_check 2216 ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata, 2217 const struct cfg80211_chan_def *chandef, 2218 enum ieee80211_chanctx_mode mode, 2219 bool radar_required); 2220 int __must_check 2221 ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata); 2222 int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata); 2223 2224 int __must_check 2225 ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata, 2226 const struct cfg80211_chan_def *chandef, 2227 u32 *changed); 2228 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata); 2229 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata); 2230 void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata, 2231 bool clear); 2232 int ieee80211_chanctx_refcount(struct ieee80211_local *local, 2233 struct ieee80211_chanctx *ctx); 2234 2235 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local, 2236 struct ieee80211_chanctx *chanctx); 2237 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local, 2238 struct ieee80211_chanctx *ctx); 2239 bool ieee80211_is_radar_required(struct ieee80211_local *local); 2240 2241 void ieee80211_dfs_cac_timer(unsigned long data); 2242 void ieee80211_dfs_cac_timer_work(struct work_struct *work); 2243 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local); 2244 void ieee80211_dfs_radar_detected_work(struct work_struct *work); 2245 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, 2246 struct cfg80211_csa_settings *csa_settings); 2247 2248 bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs); 2249 bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n); 2250 const struct ieee80211_cipher_scheme * 2251 ieee80211_cs_get(struct ieee80211_local *local, u32 cipher, 2252 enum nl80211_iftype iftype); 2253 int ieee80211_cs_headroom(struct ieee80211_local *local, 2254 struct cfg80211_crypto_settings *crypto, 2255 enum nl80211_iftype iftype); 2256 void ieee80211_recalc_dtim(struct ieee80211_local *local, 2257 struct ieee80211_sub_if_data *sdata); 2258 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, 2259 const struct cfg80211_chan_def *chandef, 2260 enum ieee80211_chanctx_mode chanmode, 2261 u8 radar_detect); 2262 int ieee80211_max_num_channels(struct ieee80211_local *local); 2263 enum nl80211_chan_width ieee80211_get_sta_bw(struct ieee80211_sta *sta); 2264 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local, 2265 struct ieee80211_chanctx *ctx); 2266 2267 /* TDLS */ 2268 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 2269 const u8 *peer, u8 action_code, u8 dialog_token, 2270 u16 status_code, u32 peer_capability, 2271 bool initiator, const u8 *extra_ies, 2272 size_t extra_ies_len); 2273 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 2274 const u8 *peer, enum nl80211_tdls_operation oper); 2275 void ieee80211_tdls_peer_del_work(struct work_struct *wk); 2276 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev, 2277 const u8 *addr, u8 oper_class, 2278 struct cfg80211_chan_def *chandef); 2279 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy, 2280 struct net_device *dev, 2281 const u8 *addr); 2282 void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata); 2283 void ieee80211_tdls_chsw_work(struct work_struct *wk); 2284 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata, 2285 const u8 *peer, u16 reason); 2286 const char *ieee80211_get_reason_code_string(u16 reason_code); 2287 2288 extern const struct ethtool_ops ieee80211_ethtool_ops; 2289 2290 u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw, 2291 struct ieee80211_vif *vif, 2292 struct ieee80211_sta *pubsta, 2293 int len); 2294 #ifdef CONFIG_MAC80211_NOINLINE 2295 #define debug_noinline noinline 2296 #else 2297 #define debug_noinline 2298 #endif 2299 2300 #endif /* IEEE80211_I_H */ 2301