1 /* 2 * Copyright 2002-2005, Instant802 Networks, Inc. 3 * Copyright 2005, Devicescape Software, Inc. 4 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> 5 * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 */ 11 12 #ifndef IEEE80211_I_H 13 #define IEEE80211_I_H 14 15 #include <linux/kernel.h> 16 #include <linux/device.h> 17 #include <linux/if_ether.h> 18 #include <linux/interrupt.h> 19 #include <linux/list.h> 20 #include <linux/netdevice.h> 21 #include <linux/skbuff.h> 22 #include <linux/workqueue.h> 23 #include <linux/types.h> 24 #include <linux/spinlock.h> 25 #include <linux/etherdevice.h> 26 #include <linux/leds.h> 27 #include <linux/idr.h> 28 #include <net/ieee80211_radiotap.h> 29 #include <net/cfg80211.h> 30 #include <net/mac80211.h> 31 #include "key.h" 32 #include "sta_info.h" 33 #include "debug.h" 34 35 struct ieee80211_local; 36 37 /* Maximum number of broadcast/multicast frames to buffer when some of the 38 * associated stations are using power saving. */ 39 #define AP_MAX_BC_BUFFER 128 40 41 /* Maximum number of frames buffered to all STAs, including multicast frames. 42 * Note: increasing this limit increases the potential memory requirement. Each 43 * frame can be up to about 2 kB long. */ 44 #define TOTAL_MAX_TX_BUFFER 512 45 46 /* Required encryption head and tailroom */ 47 #define IEEE80211_ENCRYPT_HEADROOM 8 48 #define IEEE80211_ENCRYPT_TAILROOM 18 49 50 /* IEEE 802.11 (Ch. 9.5 Defragmentation) requires support for concurrent 51 * reception of at least three fragmented frames. This limit can be increased 52 * by changing this define, at the cost of slower frame reassembly and 53 * increased memory use (about 2 kB of RAM per entry). */ 54 #define IEEE80211_FRAGMENT_MAX 4 55 56 /* power level hasn't been configured (or set to automatic) */ 57 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN 58 59 /* 60 * Some APs experience problems when working with U-APSD. Decrease the 61 * probability of that happening by using legacy mode for all ACs but VO. 62 * The AP that caused us trouble was a Cisco 4410N. It ignores our 63 * setting, and always treats non-VO ACs as legacy. 64 */ 65 #define IEEE80211_DEFAULT_UAPSD_QUEUES \ 66 IEEE80211_WMM_IE_STA_QOSINFO_AC_VO 67 68 #define IEEE80211_DEFAULT_MAX_SP_LEN \ 69 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL 70 71 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */) 72 73 struct ieee80211_fragment_entry { 74 unsigned long first_frag_time; 75 unsigned int seq; 76 unsigned int rx_queue; 77 unsigned int last_frag; 78 unsigned int extra_len; 79 struct sk_buff_head skb_list; 80 int ccmp; /* Whether fragments were encrypted with CCMP */ 81 u8 last_pn[6]; /* PN of the last fragment if CCMP was used */ 82 }; 83 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 /* 97 * During association, we save an ERP value from a probe response so 98 * that we can feed ERP info to the driver when handling the 99 * association completes. these fields probably won't be up-to-date 100 * otherwise, you probably don't want to use them. 101 */ 102 bool has_erp_value; 103 u8 erp_value; 104 105 /* Keep track of the corruption of the last beacon/probe response. */ 106 u8 corrupt_data; 107 108 /* Keep track of what bits of information we have valid info for. */ 109 u8 valid_data; 110 }; 111 112 /** 113 * enum ieee80211_corrupt_data_flags - BSS data corruption flags 114 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted 115 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted 116 * 117 * These are bss flags that are attached to a bss in the 118 * @corrupt_data field of &struct ieee80211_bss. 119 */ 120 enum ieee80211_bss_corrupt_data_flags { 121 IEEE80211_BSS_CORRUPT_BEACON = BIT(0), 122 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1) 123 }; 124 125 /** 126 * enum ieee80211_valid_data_flags - BSS valid data flags 127 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE 128 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE 129 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE 130 * 131 * These are bss flags that are attached to a bss in the 132 * @valid_data field of &struct ieee80211_bss. They show which parts 133 * of the data structure were recieved as a result of an un-corrupted 134 * beacon/probe response. 135 */ 136 enum ieee80211_bss_valid_data_flags { 137 IEEE80211_BSS_VALID_WMM = BIT(1), 138 IEEE80211_BSS_VALID_RATES = BIT(2), 139 IEEE80211_BSS_VALID_ERP = BIT(3) 140 }; 141 142 typedef unsigned __bitwise__ ieee80211_tx_result; 143 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u) 144 #define TX_DROP ((__force ieee80211_tx_result) 1u) 145 #define TX_QUEUED ((__force ieee80211_tx_result) 2u) 146 147 #define IEEE80211_TX_UNICAST BIT(1) 148 #define IEEE80211_TX_PS_BUFFERED BIT(2) 149 150 struct ieee80211_tx_data { 151 struct sk_buff *skb; 152 struct sk_buff_head skbs; 153 struct ieee80211_local *local; 154 struct ieee80211_sub_if_data *sdata; 155 struct sta_info *sta; 156 struct ieee80211_key *key; 157 struct ieee80211_tx_rate rate; 158 159 unsigned int flags; 160 }; 161 162 163 typedef unsigned __bitwise__ ieee80211_rx_result; 164 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u) 165 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u) 166 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u) 167 #define RX_QUEUED ((__force ieee80211_rx_result) 3u) 168 169 /** 170 * enum ieee80211_packet_rx_flags - packet RX flags 171 * @IEEE80211_RX_RA_MATCH: frame is destined to interface currently processed 172 * (incl. multicast frames) 173 * @IEEE80211_RX_FRAGMENTED: fragmented frame 174 * @IEEE80211_RX_AMSDU: a-MSDU packet 175 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed 176 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering 177 * 178 * These are per-frame flags that are attached to a frame in the 179 * @rx_flags field of &struct ieee80211_rx_status. 180 */ 181 enum ieee80211_packet_rx_flags { 182 IEEE80211_RX_RA_MATCH = BIT(1), 183 IEEE80211_RX_FRAGMENTED = BIT(2), 184 IEEE80211_RX_AMSDU = BIT(3), 185 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4), 186 IEEE80211_RX_DEFERRED_RELEASE = BIT(5), 187 }; 188 189 /** 190 * enum ieee80211_rx_flags - RX data flags 191 * 192 * @IEEE80211_RX_CMNTR: received on cooked monitor already 193 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported 194 * to cfg80211_report_obss_beacon(). 195 * 196 * These flags are used across handling multiple interfaces 197 * for a single frame. 198 */ 199 enum ieee80211_rx_flags { 200 IEEE80211_RX_CMNTR = BIT(0), 201 IEEE80211_RX_BEACON_REPORTED = BIT(1), 202 }; 203 204 struct ieee80211_rx_data { 205 struct sk_buff *skb; 206 struct ieee80211_local *local; 207 struct ieee80211_sub_if_data *sdata; 208 struct sta_info *sta; 209 struct ieee80211_key *key; 210 211 unsigned int flags; 212 213 /* 214 * Index into sequence numbers array, 0..16 215 * since the last (16) is used for non-QoS, 216 * will be 16 on non-QoS frames. 217 */ 218 int seqno_idx; 219 220 /* 221 * Index into the security IV/PN arrays, 0..16 222 * since the last (16) is used for CCMP-encrypted 223 * management frames, will be set to 16 on mgmt 224 * frames and 0 on non-QoS frames. 225 */ 226 int security_idx; 227 228 u32 tkip_iv32; 229 u16 tkip_iv16; 230 }; 231 232 struct ieee80211_csa_settings { 233 const u16 *counter_offsets_beacon; 234 const u16 *counter_offsets_presp; 235 236 int n_counter_offsets_beacon; 237 int n_counter_offsets_presp; 238 239 u8 count; 240 }; 241 242 struct beacon_data { 243 u8 *head, *tail; 244 int head_len, tail_len; 245 struct ieee80211_meshconf_ie *meshconf; 246 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM]; 247 u8 csa_current_counter; 248 struct rcu_head rcu_head; 249 }; 250 251 struct probe_resp { 252 struct rcu_head rcu_head; 253 int len; 254 u16 csa_counter_offsets[IEEE80211_MAX_CSA_COUNTERS_NUM]; 255 u8 data[0]; 256 }; 257 258 struct ps_data { 259 /* yes, this looks ugly, but guarantees that we can later use 260 * bitmap_empty :) 261 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */ 262 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)] 263 __aligned(__alignof__(unsigned long)); 264 struct sk_buff_head bc_buf; 265 atomic_t num_sta_ps; /* number of stations in PS mode */ 266 int dtim_count; 267 bool dtim_bc_mc; 268 }; 269 270 struct ieee80211_if_ap { 271 struct beacon_data __rcu *beacon; 272 struct probe_resp __rcu *probe_resp; 273 274 /* to be used after channel switch. */ 275 struct cfg80211_beacon_data *next_beacon; 276 struct list_head vlans; /* write-protected with RTNL and local->mtx */ 277 278 struct ps_data ps; 279 atomic_t num_mcast_sta; /* number of stations receiving multicast */ 280 enum ieee80211_smps_mode req_smps, /* requested smps mode */ 281 driver_smps_mode; /* smps mode request */ 282 283 struct work_struct request_smps_work; 284 }; 285 286 struct ieee80211_if_wds { 287 struct sta_info *sta; 288 u8 remote_addr[ETH_ALEN]; 289 }; 290 291 struct ieee80211_if_vlan { 292 struct list_head list; /* write-protected with RTNL and local->mtx */ 293 294 /* used for all tx if the VLAN is configured to 4-addr mode */ 295 struct sta_info __rcu *sta; 296 }; 297 298 struct mesh_stats { 299 __u32 fwded_mcast; /* Mesh forwarded multicast frames */ 300 __u32 fwded_unicast; /* Mesh forwarded unicast frames */ 301 __u32 fwded_frames; /* Mesh total forwarded frames */ 302 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/ 303 __u32 dropped_frames_no_route; /* Not transmitted, no route found */ 304 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */ 305 }; 306 307 #define PREQ_Q_F_START 0x1 308 #define PREQ_Q_F_REFRESH 0x2 309 struct mesh_preq_queue { 310 struct list_head list; 311 u8 dst[ETH_ALEN]; 312 u8 flags; 313 }; 314 315 #if HZ/100 == 0 316 #define IEEE80211_ROC_MIN_LEFT 1 317 #else 318 #define IEEE80211_ROC_MIN_LEFT (HZ/100) 319 #endif 320 321 struct ieee80211_roc_work { 322 struct list_head list; 323 struct list_head dependents; 324 325 struct delayed_work work; 326 327 struct ieee80211_sub_if_data *sdata; 328 329 struct ieee80211_channel *chan; 330 331 bool started, abort, hw_begun, notified; 332 bool to_be_freed; 333 bool on_channel; 334 335 unsigned long hw_start_time; 336 337 u32 duration, req_duration; 338 struct sk_buff *frame; 339 u64 cookie, mgmt_tx_cookie; 340 enum ieee80211_roc_type type; 341 }; 342 343 /* flags used in struct ieee80211_if_managed.flags */ 344 enum ieee80211_sta_flags { 345 IEEE80211_STA_CONNECTION_POLL = BIT(1), 346 IEEE80211_STA_CONTROL_PORT = BIT(2), 347 IEEE80211_STA_DISABLE_HT = BIT(4), 348 IEEE80211_STA_MFP_ENABLED = BIT(6), 349 IEEE80211_STA_UAPSD_ENABLED = BIT(7), 350 IEEE80211_STA_NULLFUNC_ACKED = BIT(8), 351 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9), 352 IEEE80211_STA_DISABLE_40MHZ = BIT(10), 353 IEEE80211_STA_DISABLE_VHT = BIT(11), 354 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12), 355 IEEE80211_STA_DISABLE_160MHZ = BIT(13), 356 IEEE80211_STA_DISABLE_WMM = BIT(14), 357 }; 358 359 struct ieee80211_mgd_auth_data { 360 struct cfg80211_bss *bss; 361 unsigned long timeout; 362 int tries; 363 u16 algorithm, expected_transaction; 364 365 u8 key[WLAN_KEY_LEN_WEP104]; 366 u8 key_len, key_idx; 367 bool done; 368 bool timeout_started; 369 370 u16 sae_trans, sae_status; 371 size_t data_len; 372 u8 data[]; 373 }; 374 375 struct ieee80211_mgd_assoc_data { 376 struct cfg80211_bss *bss; 377 const u8 *supp_rates; 378 379 unsigned long timeout; 380 int tries; 381 382 u16 capability; 383 u8 prev_bssid[ETH_ALEN]; 384 u8 ssid[IEEE80211_MAX_SSID_LEN]; 385 u8 ssid_len; 386 u8 supp_rates_len; 387 bool wmm, uapsd; 388 bool need_beacon; 389 bool synced; 390 bool timeout_started; 391 392 u8 ap_ht_param; 393 394 struct ieee80211_vht_cap ap_vht_cap; 395 396 size_t ie_len; 397 u8 ie[]; 398 }; 399 400 struct ieee80211_if_managed { 401 struct timer_list timer; 402 struct timer_list conn_mon_timer; 403 struct timer_list bcn_mon_timer; 404 struct timer_list chswitch_timer; 405 struct work_struct monitor_work; 406 struct work_struct chswitch_work; 407 struct work_struct beacon_connection_loss_work; 408 struct work_struct csa_connection_drop_work; 409 410 unsigned long beacon_timeout; 411 unsigned long probe_timeout; 412 int probe_send_count; 413 bool nullfunc_failed; 414 bool connection_loss; 415 416 struct cfg80211_bss *associated; 417 struct ieee80211_mgd_auth_data *auth_data; 418 struct ieee80211_mgd_assoc_data *assoc_data; 419 420 u8 bssid[ETH_ALEN]; 421 422 u16 aid; 423 424 bool powersave; /* powersave requested for this iface */ 425 bool broken_ap; /* AP is broken -- turn off powersave */ 426 bool have_beacon; 427 u8 dtim_period; 428 enum ieee80211_smps_mode req_smps, /* requested smps mode */ 429 driver_smps_mode; /* smps mode request */ 430 431 struct work_struct request_smps_work; 432 433 unsigned int flags; 434 435 bool beacon_crc_valid; 436 u32 beacon_crc; 437 438 bool status_acked; 439 bool status_received; 440 __le16 status_fc; 441 442 enum { 443 IEEE80211_MFP_DISABLED, 444 IEEE80211_MFP_OPTIONAL, 445 IEEE80211_MFP_REQUIRED 446 } mfp; /* management frame protection */ 447 448 /* 449 * Bitmask of enabled u-apsd queues, 450 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association 451 * to take effect. 452 */ 453 unsigned int uapsd_queues; 454 455 /* 456 * Maximum number of buffered frames AP can deliver during a 457 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar. 458 * Needs a new association to take effect. 459 */ 460 unsigned int uapsd_max_sp_len; 461 462 int wmm_last_param_set; 463 464 u8 use_4addr; 465 466 s16 p2p_noa_index; 467 468 /* Signal strength from the last Beacon frame in the current BSS. */ 469 int last_beacon_signal; 470 471 /* 472 * Weighted average of the signal strength from Beacon frames in the 473 * current BSS. This is in units of 1/16 of the signal unit to maintain 474 * accuracy and to speed up calculations, i.e., the value need to be 475 * divided by 16 to get the actual value. 476 */ 477 int ave_beacon_signal; 478 479 /* 480 * Number of Beacon frames used in ave_beacon_signal. This can be used 481 * to avoid generating less reliable cqm events that would be based 482 * only on couple of received frames. 483 */ 484 unsigned int count_beacon_signal; 485 486 /* 487 * Last Beacon frame signal strength average (ave_beacon_signal / 16) 488 * that triggered a cqm event. 0 indicates that no event has been 489 * generated for the current association. 490 */ 491 int last_cqm_event_signal; 492 493 /* 494 * State variables for keeping track of RSSI of the AP currently 495 * connected to and informing driver when RSSI has gone 496 * below/above a certain threshold. 497 */ 498 int rssi_min_thold, rssi_max_thold; 499 int last_ave_beacon_signal; 500 501 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ 502 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ 503 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */ 504 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */ 505 506 u8 tdls_peer[ETH_ALEN] __aligned(2); 507 struct delayed_work tdls_peer_del_work; 508 }; 509 510 struct ieee80211_if_ibss { 511 struct timer_list timer; 512 struct work_struct csa_connection_drop_work; 513 514 unsigned long last_scan_completed; 515 516 u32 basic_rates; 517 518 bool fixed_bssid; 519 bool fixed_channel; 520 bool privacy; 521 522 bool control_port; 523 bool userspace_handles_dfs; 524 525 u8 bssid[ETH_ALEN] __aligned(2); 526 u8 ssid[IEEE80211_MAX_SSID_LEN]; 527 u8 ssid_len, ie_len; 528 u8 *ie; 529 struct cfg80211_chan_def chandef; 530 531 unsigned long ibss_join_req; 532 /* probe response/beacon for IBSS */ 533 struct beacon_data __rcu *presp; 534 535 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */ 536 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */ 537 538 spinlock_t incomplete_lock; 539 struct list_head incomplete_stations; 540 541 enum { 542 IEEE80211_IBSS_MLME_SEARCH, 543 IEEE80211_IBSS_MLME_JOINED, 544 } state; 545 }; 546 547 /** 548 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface 549 * 550 * these declarations define the interface, which enables 551 * vendor-specific mesh synchronization 552 * 553 */ 554 struct ieee802_11_elems; 555 struct ieee80211_mesh_sync_ops { 556 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, 557 u16 stype, 558 struct ieee80211_mgmt *mgmt, 559 struct ieee802_11_elems *elems, 560 struct ieee80211_rx_status *rx_status); 561 562 /* should be called with beacon_data under RCU read lock */ 563 void (*adjust_tbtt)(struct ieee80211_sub_if_data *sdata, 564 struct beacon_data *beacon); 565 /* add other framework functions here */ 566 }; 567 568 struct mesh_csa_settings { 569 struct rcu_head rcu_head; 570 struct cfg80211_csa_settings settings; 571 }; 572 573 struct ieee80211_if_mesh { 574 struct timer_list housekeeping_timer; 575 struct timer_list mesh_path_timer; 576 struct timer_list mesh_path_root_timer; 577 578 unsigned long wrkq_flags; 579 unsigned long mbss_changed; 580 581 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN]; 582 size_t mesh_id_len; 583 /* Active Path Selection Protocol Identifier */ 584 u8 mesh_pp_id; 585 /* Active Path Selection Metric Identifier */ 586 u8 mesh_pm_id; 587 /* Congestion Control Mode Identifier */ 588 u8 mesh_cc_id; 589 /* Synchronization Protocol Identifier */ 590 u8 mesh_sp_id; 591 /* Authentication Protocol Identifier */ 592 u8 mesh_auth_id; 593 /* Local mesh Sequence Number */ 594 u32 sn; 595 /* Last used PREQ ID */ 596 u32 preq_id; 597 atomic_t mpaths; 598 /* Timestamp of last SN update */ 599 unsigned long last_sn_update; 600 /* Time when it's ok to send next PERR */ 601 unsigned long next_perr; 602 /* Timestamp of last PREQ sent */ 603 unsigned long last_preq; 604 struct mesh_rmc *rmc; 605 spinlock_t mesh_preq_queue_lock; 606 struct mesh_preq_queue preq_queue; 607 int preq_queue_len; 608 struct mesh_stats mshstats; 609 struct mesh_config mshcfg; 610 atomic_t estab_plinks; 611 u32 mesh_seqnum; 612 bool accepting_plinks; 613 int num_gates; 614 struct beacon_data __rcu *beacon; 615 const u8 *ie; 616 u8 ie_len; 617 enum { 618 IEEE80211_MESH_SEC_NONE = 0x0, 619 IEEE80211_MESH_SEC_AUTHED = 0x1, 620 IEEE80211_MESH_SEC_SECURED = 0x2, 621 } security; 622 bool user_mpm; 623 /* Extensible Synchronization Framework */ 624 const struct ieee80211_mesh_sync_ops *sync_ops; 625 s64 sync_offset_clockdrift_max; 626 spinlock_t sync_offset_lock; 627 bool adjusting_tbtt; 628 /* mesh power save */ 629 enum nl80211_mesh_power_mode nonpeer_pm; 630 int ps_peers_light_sleep; 631 int ps_peers_deep_sleep; 632 struct ps_data ps; 633 /* Channel Switching Support */ 634 struct mesh_csa_settings __rcu *csa; 635 enum { 636 IEEE80211_MESH_CSA_ROLE_NONE, 637 IEEE80211_MESH_CSA_ROLE_INIT, 638 IEEE80211_MESH_CSA_ROLE_REPEATER, 639 } csa_role; 640 u8 chsw_ttl; 641 u16 pre_value; 642 643 /* offset from skb->data while building IE */ 644 int meshconf_offset; 645 }; 646 647 #ifdef CONFIG_MAC80211_MESH 648 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ 649 do { (msh)->mshstats.name++; } while (0) 650 #else 651 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \ 652 do { } while (0) 653 #endif 654 655 /** 656 * enum ieee80211_sub_if_data_flags - virtual interface flags 657 * 658 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets 659 * @IEEE80211_SDATA_PROMISC: interface is promisc 660 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode 661 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between 662 * associated stations and deliver multicast frames both 663 * back to wireless media and to the local net stack. 664 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume. 665 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver 666 */ 667 enum ieee80211_sub_if_data_flags { 668 IEEE80211_SDATA_ALLMULTI = BIT(0), 669 IEEE80211_SDATA_PROMISC = BIT(1), 670 IEEE80211_SDATA_OPERATING_GMODE = BIT(2), 671 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3), 672 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4), 673 IEEE80211_SDATA_IN_DRIVER = BIT(5), 674 }; 675 676 /** 677 * enum ieee80211_sdata_state_bits - virtual interface state bits 678 * @SDATA_STATE_RUNNING: virtual interface is up & running; this 679 * mirrors netif_running() but is separate for interface type 680 * change handling while the interface is up 681 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel 682 * mode, so queues are stopped 683 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due 684 * to offchannel, reset when offchannel returns 685 */ 686 enum ieee80211_sdata_state_bits { 687 SDATA_STATE_RUNNING, 688 SDATA_STATE_OFFCHANNEL, 689 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, 690 }; 691 692 /** 693 * enum ieee80211_chanctx_mode - channel context configuration mode 694 * 695 * @IEEE80211_CHANCTX_SHARED: channel context may be used by 696 * multiple interfaces 697 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used 698 * only by a single interface. This can be used for example for 699 * non-fixed channel IBSS. 700 */ 701 enum ieee80211_chanctx_mode { 702 IEEE80211_CHANCTX_SHARED, 703 IEEE80211_CHANCTX_EXCLUSIVE 704 }; 705 706 /** 707 * enum ieee80211_chanctx_replace_state - channel context replacement state 708 * 709 * This is used for channel context in-place reservations that require channel 710 * context switch/swap. 711 * 712 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place 713 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced 714 * by a (not yet registered) channel context pointed by %replace_ctx. 715 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context 716 * replaces an existing channel context pointed to by %replace_ctx. 717 */ 718 enum ieee80211_chanctx_replace_state { 719 IEEE80211_CHANCTX_REPLACE_NONE, 720 IEEE80211_CHANCTX_WILL_BE_REPLACED, 721 IEEE80211_CHANCTX_REPLACES_OTHER, 722 }; 723 724 struct ieee80211_chanctx { 725 struct list_head list; 726 struct rcu_head rcu_head; 727 728 struct list_head assigned_vifs; 729 struct list_head reserved_vifs; 730 731 enum ieee80211_chanctx_replace_state replace_state; 732 struct ieee80211_chanctx *replace_ctx; 733 734 enum ieee80211_chanctx_mode mode; 735 bool driver_present; 736 737 struct ieee80211_chanctx_conf conf; 738 }; 739 740 struct mac80211_qos_map { 741 struct cfg80211_qos_map qos_map; 742 struct rcu_head rcu_head; 743 }; 744 745 struct ieee80211_sub_if_data { 746 struct list_head list; 747 748 struct wireless_dev wdev; 749 750 /* keys */ 751 struct list_head key_list; 752 753 /* count for keys needing tailroom space allocation */ 754 int crypto_tx_tailroom_needed_cnt; 755 int crypto_tx_tailroom_pending_dec; 756 struct delayed_work dec_tailroom_needed_wk; 757 758 struct net_device *dev; 759 struct ieee80211_local *local; 760 761 unsigned int flags; 762 763 unsigned long state; 764 765 int drop_unencrypted; 766 767 char name[IFNAMSIZ]; 768 769 /* Fragment table for host-based reassembly */ 770 struct ieee80211_fragment_entry fragments[IEEE80211_FRAGMENT_MAX]; 771 unsigned int fragment_next; 772 773 /* TID bitmap for NoAck policy */ 774 u16 noack_map; 775 776 /* bit field of ACM bits (BIT(802.1D tag)) */ 777 u8 wmm_acm; 778 779 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS]; 780 struct ieee80211_key __rcu *default_unicast_key; 781 struct ieee80211_key __rcu *default_multicast_key; 782 struct ieee80211_key __rcu *default_mgmt_key; 783 784 u16 sequence_number; 785 __be16 control_port_protocol; 786 bool control_port_no_encrypt; 787 int encrypt_headroom; 788 789 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS]; 790 struct mac80211_qos_map __rcu *qos_map; 791 792 struct work_struct csa_finalize_work; 793 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */ 794 struct cfg80211_chan_def csa_chandef; 795 796 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */ 797 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */ 798 799 /* context reservation -- protected with chanctx_mtx */ 800 struct ieee80211_chanctx *reserved_chanctx; 801 struct cfg80211_chan_def reserved_chandef; 802 bool reserved_radar_required; 803 bool reserved_ready; 804 805 /* used to reconfigure hardware SM PS */ 806 struct work_struct recalc_smps; 807 808 struct work_struct work; 809 struct sk_buff_head skb_queue; 810 811 u8 needed_rx_chains; 812 enum ieee80211_smps_mode smps_mode; 813 814 int user_power_level; /* in dBm */ 815 int ap_power_level; /* in dBm */ 816 817 bool radar_required; 818 struct delayed_work dfs_cac_timer_work; 819 820 /* 821 * AP this belongs to: self in AP mode and 822 * corresponding AP in VLAN mode, NULL for 823 * all others (might be needed later in IBSS) 824 */ 825 struct ieee80211_if_ap *bss; 826 827 /* bitmap of allowed (non-MCS) rate indexes for rate control */ 828 u32 rc_rateidx_mask[IEEE80211_NUM_BANDS]; 829 830 bool rc_has_mcs_mask[IEEE80211_NUM_BANDS]; 831 u8 rc_rateidx_mcs_mask[IEEE80211_NUM_BANDS][IEEE80211_HT_MCS_MASK_LEN]; 832 833 union { 834 struct ieee80211_if_ap ap; 835 struct ieee80211_if_wds wds; 836 struct ieee80211_if_vlan vlan; 837 struct ieee80211_if_managed mgd; 838 struct ieee80211_if_ibss ibss; 839 struct ieee80211_if_mesh mesh; 840 u32 mntr_flags; 841 } u; 842 843 #ifdef CONFIG_MAC80211_DEBUGFS 844 struct { 845 struct dentry *subdir_stations; 846 struct dentry *default_unicast_key; 847 struct dentry *default_multicast_key; 848 struct dentry *default_mgmt_key; 849 } debugfs; 850 #endif 851 852 /* must be last, dynamically sized area in this! */ 853 struct ieee80211_vif vif; 854 }; 855 856 static inline 857 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p) 858 { 859 return container_of(p, struct ieee80211_sub_if_data, vif); 860 } 861 862 static inline void sdata_lock(struct ieee80211_sub_if_data *sdata) 863 __acquires(&sdata->wdev.mtx) 864 { 865 mutex_lock(&sdata->wdev.mtx); 866 __acquire(&sdata->wdev.mtx); 867 } 868 869 static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata) 870 __releases(&sdata->wdev.mtx) 871 { 872 mutex_unlock(&sdata->wdev.mtx); 873 __release(&sdata->wdev.mtx); 874 } 875 876 #define sdata_dereference(p, sdata) \ 877 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx)) 878 879 static inline void 880 sdata_assert_lock(struct ieee80211_sub_if_data *sdata) 881 { 882 lockdep_assert_held(&sdata->wdev.mtx); 883 } 884 885 static inline enum ieee80211_band 886 ieee80211_get_sdata_band(struct ieee80211_sub_if_data *sdata) 887 { 888 enum ieee80211_band band = IEEE80211_BAND_2GHZ; 889 struct ieee80211_chanctx_conf *chanctx_conf; 890 891 rcu_read_lock(); 892 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 893 if (!WARN_ON(!chanctx_conf)) 894 band = chanctx_conf->def.chan->band; 895 rcu_read_unlock(); 896 897 return band; 898 } 899 900 static inline int 901 ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef) 902 { 903 switch (chandef->width) { 904 case NL80211_CHAN_WIDTH_5: 905 return 2; 906 case NL80211_CHAN_WIDTH_10: 907 return 1; 908 default: 909 return 0; 910 } 911 } 912 913 static inline int 914 ieee80211_vif_get_shift(struct ieee80211_vif *vif) 915 { 916 struct ieee80211_chanctx_conf *chanctx_conf; 917 int shift = 0; 918 919 rcu_read_lock(); 920 chanctx_conf = rcu_dereference(vif->chanctx_conf); 921 if (chanctx_conf) 922 shift = ieee80211_chandef_get_shift(&chanctx_conf->def); 923 rcu_read_unlock(); 924 925 return shift; 926 } 927 928 struct ieee80211_rx_agg { 929 u8 addr[ETH_ALEN]; 930 u16 tid; 931 }; 932 933 enum sdata_queue_type { 934 IEEE80211_SDATA_QUEUE_TYPE_FRAME = 0, 935 IEEE80211_SDATA_QUEUE_AGG_START = 1, 936 IEEE80211_SDATA_QUEUE_AGG_STOP = 2, 937 IEEE80211_SDATA_QUEUE_RX_AGG_START = 3, 938 IEEE80211_SDATA_QUEUE_RX_AGG_STOP = 4, 939 }; 940 941 enum { 942 IEEE80211_RX_MSG = 1, 943 IEEE80211_TX_STATUS_MSG = 2, 944 }; 945 946 enum queue_stop_reason { 947 IEEE80211_QUEUE_STOP_REASON_DRIVER, 948 IEEE80211_QUEUE_STOP_REASON_PS, 949 IEEE80211_QUEUE_STOP_REASON_CSA, 950 IEEE80211_QUEUE_STOP_REASON_AGGREGATION, 951 IEEE80211_QUEUE_STOP_REASON_SUSPEND, 952 IEEE80211_QUEUE_STOP_REASON_SKB_ADD, 953 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL, 954 IEEE80211_QUEUE_STOP_REASON_FLUSH, 955 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN, 956 957 IEEE80211_QUEUE_STOP_REASONS, 958 }; 959 960 #ifdef CONFIG_MAC80211_LEDS 961 struct tpt_led_trigger { 962 struct led_trigger trig; 963 char name[32]; 964 const struct ieee80211_tpt_blink *blink_table; 965 unsigned int blink_table_len; 966 struct timer_list timer; 967 unsigned long prev_traffic; 968 unsigned long tx_bytes, rx_bytes; 969 unsigned int active, want; 970 bool running; 971 }; 972 #endif 973 974 /* 975 * struct ieee80211_tx_latency_bin_ranges - Tx latency statistics bins ranges 976 * 977 * Measuring Tx latency statistics. Counts how many Tx frames transmitted in a 978 * certain latency range (in Milliseconds). Each station that uses these 979 * ranges will have bins to count the amount of frames received in that range. 980 * The user can configure the ranges via debugfs. 981 * If ranges is NULL then Tx latency statistics bins are disabled for all 982 * stations. 983 * 984 * @n_ranges: number of ranges that are taken in account 985 * @ranges: the ranges that the user requested or NULL if disabled. 986 */ 987 struct ieee80211_tx_latency_bin_ranges { 988 int n_ranges; 989 u32 ranges[]; 990 }; 991 992 /** 993 * mac80211 scan flags - currently active scan mode 994 * 995 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as 996 * well be on the operating channel 997 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to 998 * determine if we are on the operating channel or not 999 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating 1000 * channel. This should not interrupt normal traffic. 1001 * @SCAN_COMPLETED: Set for our scan work function when the driver reported 1002 * that the scan completed. 1003 * @SCAN_ABORTED: Set for our scan work function when the driver reported 1004 * a scan complete for an aborted scan. 1005 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being 1006 * cancelled. 1007 */ 1008 enum { 1009 SCAN_SW_SCANNING, 1010 SCAN_HW_SCANNING, 1011 SCAN_ONCHANNEL_SCANNING, 1012 SCAN_COMPLETED, 1013 SCAN_ABORTED, 1014 SCAN_HW_CANCELLED, 1015 }; 1016 1017 /** 1018 * enum mac80211_scan_state - scan state machine states 1019 * 1020 * @SCAN_DECISION: Main entry point to the scan state machine, this state 1021 * determines if we should keep on scanning or switch back to the 1022 * operating channel 1023 * @SCAN_SET_CHANNEL: Set the next channel to be scanned 1024 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses 1025 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to 1026 * send out data 1027 * @SCAN_RESUME: Resume the scan and scan the next channel 1028 * @SCAN_ABORT: Abort the scan and go back to operating channel 1029 */ 1030 enum mac80211_scan_state { 1031 SCAN_DECISION, 1032 SCAN_SET_CHANNEL, 1033 SCAN_SEND_PROBE, 1034 SCAN_SUSPEND, 1035 SCAN_RESUME, 1036 SCAN_ABORT, 1037 }; 1038 1039 struct ieee80211_local { 1040 /* embed the driver visible part. 1041 * don't cast (use the static inlines below), but we keep 1042 * it first anyway so they become a no-op */ 1043 struct ieee80211_hw hw; 1044 1045 const struct ieee80211_ops *ops; 1046 1047 /* 1048 * private workqueue to mac80211. mac80211 makes this accessible 1049 * via ieee80211_queue_work() 1050 */ 1051 struct workqueue_struct *workqueue; 1052 1053 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES]; 1054 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS]; 1055 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */ 1056 spinlock_t queue_stop_reason_lock; 1057 1058 int open_count; 1059 int monitors, cooked_mntrs; 1060 /* number of interfaces with corresponding FIF_ flags */ 1061 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll, 1062 fif_probe_req; 1063 int probe_req_reg; 1064 unsigned int filter_flags; /* FIF_* */ 1065 1066 bool wiphy_ciphers_allocated; 1067 1068 bool use_chanctx; 1069 1070 /* protects the aggregated multicast list and filter calls */ 1071 spinlock_t filter_lock; 1072 1073 /* used for uploading changed mc list */ 1074 struct work_struct reconfig_filter; 1075 1076 /* aggregated multicast list */ 1077 struct netdev_hw_addr_list mc_list; 1078 1079 bool tim_in_locked_section; /* see ieee80211_beacon_get() */ 1080 1081 /* 1082 * suspended is true if we finished all the suspend _and_ we have 1083 * not yet come up from resume. This is to be used by mac80211 1084 * to ensure driver sanity during suspend and mac80211's own 1085 * sanity. It can eventually be used for WoW as well. 1086 */ 1087 bool suspended; 1088 1089 /* 1090 * Resuming is true while suspended, but when we're reprogramming the 1091 * hardware -- at that time it's allowed to use ieee80211_queue_work() 1092 * again even though some other parts of the stack are still suspended 1093 * and we still drop received frames to avoid waking the stack. 1094 */ 1095 bool resuming; 1096 1097 /* 1098 * quiescing is true during the suspend process _only_ to 1099 * ease timer cancelling etc. 1100 */ 1101 bool quiescing; 1102 1103 /* device is started */ 1104 bool started; 1105 1106 /* device is during a HW reconfig */ 1107 bool in_reconfig; 1108 1109 /* wowlan is enabled -- don't reconfig on resume */ 1110 bool wowlan; 1111 1112 /* DFS/radar detection is enabled */ 1113 bool radar_detect_enabled; 1114 struct work_struct radar_detected_work; 1115 1116 /* number of RX chains the hardware has */ 1117 u8 rx_chains; 1118 1119 int tx_headroom; /* required headroom for hardware/radiotap */ 1120 1121 /* Tasklet and skb queue to process calls from IRQ mode. All frames 1122 * added to skb_queue will be processed, but frames in 1123 * skb_queue_unreliable may be dropped if the total length of these 1124 * queues increases over the limit. */ 1125 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128 1126 struct tasklet_struct tasklet; 1127 struct sk_buff_head skb_queue; 1128 struct sk_buff_head skb_queue_unreliable; 1129 1130 spinlock_t rx_path_lock; 1131 1132 /* Station data */ 1133 /* 1134 * The mutex only protects the list, hash table and 1135 * counter, reads are done with RCU. 1136 */ 1137 struct mutex sta_mtx; 1138 spinlock_t tim_lock; 1139 unsigned long num_sta; 1140 struct list_head sta_list; 1141 struct sta_info __rcu *sta_hash[STA_HASH_SIZE]; 1142 struct timer_list sta_cleanup; 1143 int sta_generation; 1144 1145 /* 1146 * Tx latency statistics parameters for all stations. 1147 * Can enable via debugfs (NULL when disabled). 1148 */ 1149 struct ieee80211_tx_latency_bin_ranges __rcu *tx_latency; 1150 1151 struct sk_buff_head pending[IEEE80211_MAX_QUEUES]; 1152 struct tasklet_struct tx_pending_tasklet; 1153 1154 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES]; 1155 1156 /* number of interfaces with corresponding IFF_ flags */ 1157 atomic_t iff_allmultis, iff_promiscs; 1158 1159 struct rate_control_ref *rate_ctrl; 1160 1161 struct crypto_cipher *wep_tx_tfm; 1162 struct crypto_cipher *wep_rx_tfm; 1163 u32 wep_iv; 1164 1165 /* see iface.c */ 1166 struct list_head interfaces; 1167 struct mutex iflist_mtx; 1168 1169 /* 1170 * Key mutex, protects sdata's key_list and sta_info's 1171 * key pointers (write access, they're RCU.) 1172 */ 1173 struct mutex key_mtx; 1174 1175 /* mutex for scan and work locking */ 1176 struct mutex mtx; 1177 1178 /* Scanning and BSS list */ 1179 unsigned long scanning; 1180 struct cfg80211_ssid scan_ssid; 1181 struct cfg80211_scan_request *int_scan_req; 1182 struct cfg80211_scan_request *scan_req; 1183 struct ieee80211_scan_request *hw_scan_req; 1184 struct cfg80211_chan_def scan_chandef; 1185 enum ieee80211_band hw_scan_band; 1186 int scan_channel_idx; 1187 int scan_ies_len; 1188 int hw_scan_ies_bufsize; 1189 1190 struct work_struct sched_scan_stopped_work; 1191 struct ieee80211_sub_if_data __rcu *sched_scan_sdata; 1192 struct cfg80211_sched_scan_request *sched_scan_req; 1193 1194 unsigned long leave_oper_channel_time; 1195 enum mac80211_scan_state next_scan_state; 1196 struct delayed_work scan_work; 1197 struct ieee80211_sub_if_data __rcu *scan_sdata; 1198 /* For backward compatibility only -- do not use */ 1199 struct cfg80211_chan_def _oper_chandef; 1200 1201 /* Temporary remain-on-channel for off-channel operations */ 1202 struct ieee80211_channel *tmp_channel; 1203 1204 /* channel contexts */ 1205 struct list_head chanctx_list; 1206 struct mutex chanctx_mtx; 1207 1208 /* SNMP counters */ 1209 /* dot11CountersTable */ 1210 u32 dot11TransmittedFragmentCount; 1211 u32 dot11MulticastTransmittedFrameCount; 1212 u32 dot11FailedCount; 1213 u32 dot11RetryCount; 1214 u32 dot11MultipleRetryCount; 1215 u32 dot11FrameDuplicateCount; 1216 u32 dot11ReceivedFragmentCount; 1217 u32 dot11MulticastReceivedFrameCount; 1218 u32 dot11TransmittedFrameCount; 1219 1220 #ifdef CONFIG_MAC80211_LEDS 1221 struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led; 1222 struct tpt_led_trigger *tpt_led_trigger; 1223 char tx_led_name[32], rx_led_name[32], 1224 assoc_led_name[32], radio_led_name[32]; 1225 #endif 1226 1227 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS 1228 /* TX/RX handler statistics */ 1229 unsigned int tx_handlers_drop; 1230 unsigned int tx_handlers_queued; 1231 unsigned int tx_handlers_drop_unencrypted; 1232 unsigned int tx_handlers_drop_fragment; 1233 unsigned int tx_handlers_drop_wep; 1234 unsigned int tx_handlers_drop_not_assoc; 1235 unsigned int tx_handlers_drop_unauth_port; 1236 unsigned int rx_handlers_drop; 1237 unsigned int rx_handlers_queued; 1238 unsigned int rx_handlers_drop_nullfunc; 1239 unsigned int rx_handlers_drop_defrag; 1240 unsigned int rx_handlers_drop_short; 1241 unsigned int tx_expand_skb_head; 1242 unsigned int tx_expand_skb_head_cloned; 1243 unsigned int rx_expand_skb_head; 1244 unsigned int rx_expand_skb_head2; 1245 unsigned int rx_handlers_fragments; 1246 unsigned int tx_status_drop; 1247 #define I802_DEBUG_INC(c) (c)++ 1248 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */ 1249 #define I802_DEBUG_INC(c) do { } while (0) 1250 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */ 1251 1252 1253 int total_ps_buffered; /* total number of all buffered unicast and 1254 * multicast packets for power saving stations 1255 */ 1256 1257 bool pspolling; 1258 bool offchannel_ps_enabled; 1259 /* 1260 * PS can only be enabled when we have exactly one managed 1261 * interface (and monitors) in PS, this then points there. 1262 */ 1263 struct ieee80211_sub_if_data *ps_sdata; 1264 struct work_struct dynamic_ps_enable_work; 1265 struct work_struct dynamic_ps_disable_work; 1266 struct timer_list dynamic_ps_timer; 1267 struct notifier_block network_latency_notifier; 1268 struct notifier_block ifa_notifier; 1269 struct notifier_block ifa6_notifier; 1270 1271 /* 1272 * The dynamic ps timeout configured from user space via WEXT - 1273 * this will override whatever chosen by mac80211 internally. 1274 */ 1275 int dynamic_ps_forced_timeout; 1276 1277 int user_power_level; /* in dBm, for all interfaces */ 1278 1279 enum ieee80211_smps_mode smps_mode; 1280 1281 struct work_struct restart_work; 1282 1283 #ifdef CONFIG_MAC80211_DEBUGFS 1284 struct local_debugfsdentries { 1285 struct dentry *rcdir; 1286 struct dentry *keys; 1287 } debugfs; 1288 #endif 1289 1290 /* 1291 * Remain-on-channel support 1292 */ 1293 struct list_head roc_list; 1294 struct work_struct hw_roc_start, hw_roc_done; 1295 unsigned long hw_roc_start_time; 1296 u64 roc_cookie_counter; 1297 1298 struct idr ack_status_frames; 1299 spinlock_t ack_status_lock; 1300 1301 struct ieee80211_sub_if_data __rcu *p2p_sdata; 1302 1303 struct napi_struct *napi; 1304 1305 /* virtual monitor interface */ 1306 struct ieee80211_sub_if_data __rcu *monitor_sdata; 1307 struct cfg80211_chan_def monitor_chandef; 1308 }; 1309 1310 static inline struct ieee80211_sub_if_data * 1311 IEEE80211_DEV_TO_SUB_IF(struct net_device *dev) 1312 { 1313 return netdev_priv(dev); 1314 } 1315 1316 static inline struct ieee80211_sub_if_data * 1317 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev) 1318 { 1319 return container_of(wdev, struct ieee80211_sub_if_data, wdev); 1320 } 1321 1322 /* this struct represents 802.11n's RA/TID combination */ 1323 struct ieee80211_ra_tid { 1324 u8 ra[ETH_ALEN]; 1325 u16 tid; 1326 }; 1327 1328 /* this struct holds the value parsing from channel switch IE */ 1329 struct ieee80211_csa_ie { 1330 struct cfg80211_chan_def chandef; 1331 u8 mode; 1332 u8 count; 1333 u8 ttl; 1334 u16 pre_value; 1335 }; 1336 1337 /* Parsed Information Elements */ 1338 struct ieee802_11_elems { 1339 const u8 *ie_start; 1340 size_t total_len; 1341 1342 /* pointers to IEs */ 1343 const u8 *ssid; 1344 const u8 *supp_rates; 1345 const u8 *ds_params; 1346 const struct ieee80211_tim_ie *tim; 1347 const u8 *challenge; 1348 const u8 *rsn; 1349 const u8 *erp_info; 1350 const u8 *ext_supp_rates; 1351 const u8 *wmm_info; 1352 const u8 *wmm_param; 1353 const struct ieee80211_ht_cap *ht_cap_elem; 1354 const struct ieee80211_ht_operation *ht_operation; 1355 const struct ieee80211_vht_cap *vht_cap_elem; 1356 const struct ieee80211_vht_operation *vht_operation; 1357 const struct ieee80211_meshconf_ie *mesh_config; 1358 const u8 *mesh_id; 1359 const u8 *peering; 1360 const __le16 *awake_window; 1361 const u8 *preq; 1362 const u8 *prep; 1363 const u8 *perr; 1364 const struct ieee80211_rann_ie *rann; 1365 const struct ieee80211_channel_sw_ie *ch_switch_ie; 1366 const struct ieee80211_ext_chansw_ie *ext_chansw_ie; 1367 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie; 1368 const u8 *country_elem; 1369 const u8 *pwr_constr_elem; 1370 const struct ieee80211_timeout_interval_ie *timeout_int; 1371 const u8 *opmode_notif; 1372 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs; 1373 const struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie; 1374 1375 /* length of them, respectively */ 1376 u8 ssid_len; 1377 u8 supp_rates_len; 1378 u8 tim_len; 1379 u8 challenge_len; 1380 u8 rsn_len; 1381 u8 ext_supp_rates_len; 1382 u8 wmm_info_len; 1383 u8 wmm_param_len; 1384 u8 mesh_id_len; 1385 u8 peering_len; 1386 u8 preq_len; 1387 u8 prep_len; 1388 u8 perr_len; 1389 u8 country_elem_len; 1390 1391 /* whether a parse error occurred while retrieving these elements */ 1392 bool parse_error; 1393 }; 1394 1395 static inline struct ieee80211_local *hw_to_local( 1396 struct ieee80211_hw *hw) 1397 { 1398 return container_of(hw, struct ieee80211_local, hw); 1399 } 1400 1401 1402 static inline int ieee80211_bssid_match(const u8 *raddr, const u8 *addr) 1403 { 1404 return ether_addr_equal(raddr, addr) || 1405 is_broadcast_ether_addr(raddr); 1406 } 1407 1408 static inline bool 1409 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status) 1410 { 1411 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START && 1412 status->flag & RX_FLAG_MACTIME_END); 1413 return status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END); 1414 } 1415 1416 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, 1417 struct ieee80211_rx_status *status, 1418 unsigned int mpdu_len, 1419 unsigned int mpdu_offset); 1420 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed); 1421 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx); 1422 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata, 1423 u32 changed); 1424 void ieee80211_configure_filter(struct ieee80211_local *local); 1425 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata); 1426 1427 /* STA code */ 1428 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata); 1429 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, 1430 struct cfg80211_auth_request *req); 1431 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, 1432 struct cfg80211_assoc_request *req); 1433 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, 1434 struct cfg80211_deauth_request *req); 1435 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, 1436 struct cfg80211_disassoc_request *req); 1437 void ieee80211_send_pspoll(struct ieee80211_local *local, 1438 struct ieee80211_sub_if_data *sdata); 1439 void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency); 1440 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata); 1441 int ieee80211_max_network_latency(struct notifier_block *nb, 1442 unsigned long data, void *dummy); 1443 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata); 1444 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata); 1445 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 1446 struct sk_buff *skb); 1447 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata); 1448 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata); 1449 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata); 1450 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata, 1451 __le16 fc, bool acked); 1452 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata); 1453 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata); 1454 1455 /* IBSS code */ 1456 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local); 1457 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata); 1458 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata, 1459 const u8 *bssid, const u8 *addr, u32 supp_rates); 1460 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata, 1461 struct cfg80211_ibss_params *params); 1462 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata); 1463 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata); 1464 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 1465 struct sk_buff *skb); 1466 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata, 1467 struct cfg80211_csa_settings *csa_settings); 1468 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata); 1469 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata); 1470 1471 /* mesh code */ 1472 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata); 1473 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, 1474 struct sk_buff *skb); 1475 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata, 1476 struct cfg80211_csa_settings *csa_settings); 1477 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata); 1478 1479 /* scan/BSS handling */ 1480 void ieee80211_scan_work(struct work_struct *work); 1481 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata, 1482 const u8 *ssid, u8 ssid_len, 1483 struct ieee80211_channel *chan, 1484 enum nl80211_bss_scan_width scan_width); 1485 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata, 1486 struct cfg80211_scan_request *req); 1487 void ieee80211_scan_cancel(struct ieee80211_local *local); 1488 void ieee80211_run_deferred_scan(struct ieee80211_local *local); 1489 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb); 1490 1491 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local); 1492 struct ieee80211_bss * 1493 ieee80211_bss_info_update(struct ieee80211_local *local, 1494 struct ieee80211_rx_status *rx_status, 1495 struct ieee80211_mgmt *mgmt, 1496 size_t len, 1497 struct ieee802_11_elems *elems, 1498 struct ieee80211_channel *channel); 1499 void ieee80211_rx_bss_put(struct ieee80211_local *local, 1500 struct ieee80211_bss *bss); 1501 1502 /* scheduled scan handling */ 1503 int 1504 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, 1505 struct cfg80211_sched_scan_request *req); 1506 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata, 1507 struct cfg80211_sched_scan_request *req); 1508 int ieee80211_request_sched_scan_stop(struct ieee80211_sub_if_data *sdata); 1509 void ieee80211_sched_scan_end(struct ieee80211_local *local); 1510 void ieee80211_sched_scan_stopped_work(struct work_struct *work); 1511 1512 /* off-channel helpers */ 1513 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local); 1514 void ieee80211_offchannel_return(struct ieee80211_local *local); 1515 void ieee80211_roc_setup(struct ieee80211_local *local); 1516 void ieee80211_start_next_roc(struct ieee80211_local *local); 1517 void ieee80211_roc_purge(struct ieee80211_local *local, 1518 struct ieee80211_sub_if_data *sdata); 1519 void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc, bool free); 1520 void ieee80211_sw_roc_work(struct work_struct *work); 1521 void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc); 1522 1523 /* channel switch handling */ 1524 void ieee80211_csa_finalize_work(struct work_struct *work); 1525 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 1526 struct cfg80211_csa_settings *params); 1527 1528 /* interface handling */ 1529 int ieee80211_iface_init(void); 1530 void ieee80211_iface_exit(void); 1531 int ieee80211_if_add(struct ieee80211_local *local, const char *name, 1532 struct wireless_dev **new_wdev, enum nl80211_iftype type, 1533 struct vif_params *params); 1534 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata, 1535 enum nl80211_iftype type); 1536 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata); 1537 void ieee80211_remove_interfaces(struct ieee80211_local *local); 1538 u32 ieee80211_idle_off(struct ieee80211_local *local); 1539 void ieee80211_recalc_idle(struct ieee80211_local *local); 1540 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata, 1541 const int offset); 1542 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up); 1543 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata); 1544 int ieee80211_add_virtual_monitor(struct ieee80211_local *local); 1545 void ieee80211_del_virtual_monitor(struct ieee80211_local *local); 1546 1547 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata); 1548 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata); 1549 1550 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata) 1551 { 1552 return test_bit(SDATA_STATE_RUNNING, &sdata->state); 1553 } 1554 1555 /* tx handling */ 1556 void ieee80211_clear_tx_pending(struct ieee80211_local *local); 1557 void ieee80211_tx_pending(unsigned long data); 1558 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb, 1559 struct net_device *dev); 1560 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb, 1561 struct net_device *dev); 1562 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw, 1563 struct sk_buff_head *skbs); 1564 1565 /* HT */ 1566 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata, 1567 struct ieee80211_sta_ht_cap *ht_cap); 1568 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata, 1569 struct ieee80211_supported_band *sband, 1570 const struct ieee80211_ht_cap *ht_cap_ie, 1571 struct sta_info *sta); 1572 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata, 1573 const u8 *da, u16 tid, 1574 u16 initiator, u16 reason_code); 1575 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata, 1576 enum ieee80211_smps_mode smps, const u8 *da, 1577 const u8 *bssid); 1578 void ieee80211_request_smps_ap_work(struct work_struct *work); 1579 void ieee80211_request_smps_mgd_work(struct work_struct *work); 1580 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old, 1581 enum ieee80211_smps_mode smps_mode_new); 1582 1583 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, 1584 u16 initiator, u16 reason, bool stop); 1585 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, 1586 u16 initiator, u16 reason, bool stop); 1587 void __ieee80211_start_rx_ba_session(struct sta_info *sta, 1588 u8 dialog_token, u16 timeout, 1589 u16 start_seq_num, u16 ba_policy, u16 tid, 1590 u16 buf_size, bool tx); 1591 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta, 1592 enum ieee80211_agg_stop_reason reason); 1593 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata, 1594 struct sta_info *sta, 1595 struct ieee80211_mgmt *mgmt, size_t len); 1596 void ieee80211_process_addba_resp(struct ieee80211_local *local, 1597 struct sta_info *sta, 1598 struct ieee80211_mgmt *mgmt, 1599 size_t len); 1600 void ieee80211_process_addba_request(struct ieee80211_local *local, 1601 struct sta_info *sta, 1602 struct ieee80211_mgmt *mgmt, 1603 size_t len); 1604 1605 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, 1606 enum ieee80211_agg_stop_reason reason); 1607 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, 1608 enum ieee80211_agg_stop_reason reason); 1609 void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid); 1610 void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid); 1611 void ieee80211_ba_session_work(struct work_struct *work); 1612 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid); 1613 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid); 1614 1615 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs); 1616 1617 /* VHT */ 1618 void 1619 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata, 1620 struct ieee80211_supported_band *sband, 1621 const struct ieee80211_vht_cap *vht_cap_ie, 1622 struct sta_info *sta); 1623 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta); 1624 void ieee80211_sta_set_rx_nss(struct sta_info *sta); 1625 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, 1626 struct sta_info *sta, u8 opmode, 1627 enum ieee80211_band band, bool nss_only); 1628 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata, 1629 struct sta_info *sta, u8 opmode, 1630 enum ieee80211_band band, bool nss_only); 1631 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata, 1632 struct ieee80211_sta_vht_cap *vht_cap); 1633 1634 /* Spectrum management */ 1635 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata, 1636 struct ieee80211_mgmt *mgmt, 1637 size_t len); 1638 /** 1639 * ieee80211_parse_ch_switch_ie - parses channel switch IEs 1640 * @sdata: the sdata of the interface which has received the frame 1641 * @elems: parsed 802.11 elements received with the frame 1642 * @beacon: indicates if the frame was a beacon or probe response 1643 * @current_band: indicates the current band 1644 * @sta_flags: contains information about own capabilities and restrictions 1645 * to decide which channel switch announcements can be accepted. Only the 1646 * following subset of &enum ieee80211_sta_flags are evaluated: 1647 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT, 1648 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ, 1649 * %IEEE80211_STA_DISABLE_160MHZ. 1650 * @bssid: the currently connected bssid (for reporting) 1651 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl. 1652 All of them will be filled with if success only. 1653 * Return: 0 on success, <0 on error and >0 if there is nothing to parse. 1654 */ 1655 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata, 1656 struct ieee802_11_elems *elems, bool beacon, 1657 enum ieee80211_band current_band, 1658 u32 sta_flags, u8 *bssid, 1659 struct ieee80211_csa_ie *csa_ie); 1660 1661 /* Suspend/resume and hw reconfiguration */ 1662 int ieee80211_reconfig(struct ieee80211_local *local); 1663 void ieee80211_stop_device(struct ieee80211_local *local); 1664 1665 int __ieee80211_suspend(struct ieee80211_hw *hw, 1666 struct cfg80211_wowlan *wowlan); 1667 1668 static inline int __ieee80211_resume(struct ieee80211_hw *hw) 1669 { 1670 struct ieee80211_local *local = hw_to_local(hw); 1671 1672 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning), 1673 "%s: resume with hardware scan still in progress\n", 1674 wiphy_name(hw->wiphy)); 1675 1676 return ieee80211_reconfig(hw_to_local(hw)); 1677 } 1678 1679 /* utility functions/constants */ 1680 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */ 1681 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, 1682 enum nl80211_iftype type); 1683 int ieee80211_frame_duration(enum ieee80211_band band, size_t len, 1684 int rate, int erp, int short_preamble, 1685 int shift); 1686 void mac80211_ev_michael_mic_failure(struct ieee80211_sub_if_data *sdata, int keyidx, 1687 struct ieee80211_hdr *hdr, const u8 *tsc, 1688 gfp_t gfp); 1689 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, 1690 bool bss_notify); 1691 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb, 1692 enum ieee80211_band band); 1693 1694 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, 1695 struct sk_buff *skb, int tid, 1696 enum ieee80211_band band); 1697 1698 static inline void 1699 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata, 1700 struct sk_buff *skb, int tid, 1701 enum ieee80211_band band) 1702 { 1703 rcu_read_lock(); 1704 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band); 1705 rcu_read_unlock(); 1706 } 1707 1708 static inline void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata, 1709 struct sk_buff *skb, int tid) 1710 { 1711 struct ieee80211_chanctx_conf *chanctx_conf; 1712 1713 rcu_read_lock(); 1714 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 1715 if (WARN_ON(!chanctx_conf)) { 1716 rcu_read_unlock(); 1717 kfree_skb(skb); 1718 return; 1719 } 1720 1721 __ieee80211_tx_skb_tid_band(sdata, skb, tid, 1722 chanctx_conf->def.chan->band); 1723 rcu_read_unlock(); 1724 } 1725 1726 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata, 1727 struct sk_buff *skb) 1728 { 1729 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */ 1730 ieee80211_tx_skb_tid(sdata, skb, 7); 1731 } 1732 1733 u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, 1734 struct ieee802_11_elems *elems, 1735 u64 filter, u32 crc); 1736 static inline void ieee802_11_parse_elems(const u8 *start, size_t len, 1737 bool action, 1738 struct ieee802_11_elems *elems) 1739 { 1740 ieee802_11_parse_elems_crc(start, len, action, elems, 0, 0); 1741 } 1742 1743 static inline bool ieee80211_rx_reorder_ready(struct sk_buff_head *frames) 1744 { 1745 struct sk_buff *tail = skb_peek_tail(frames); 1746 struct ieee80211_rx_status *status; 1747 1748 if (!tail) 1749 return false; 1750 1751 status = IEEE80211_SKB_RXCB(tail); 1752 if (status->flag & RX_FLAG_AMSDU_MORE) 1753 return false; 1754 1755 return true; 1756 } 1757 1758 void ieee80211_dynamic_ps_enable_work(struct work_struct *work); 1759 void ieee80211_dynamic_ps_disable_work(struct work_struct *work); 1760 void ieee80211_dynamic_ps_timer(unsigned long data); 1761 void ieee80211_send_nullfunc(struct ieee80211_local *local, 1762 struct ieee80211_sub_if_data *sdata, 1763 int powersave); 1764 void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata, 1765 struct ieee80211_hdr *hdr); 1766 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata, 1767 struct ieee80211_hdr *hdr, bool ack); 1768 1769 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, 1770 unsigned long queues, 1771 enum queue_stop_reason reason, 1772 bool refcounted); 1773 void ieee80211_stop_vif_queues(struct ieee80211_local *local, 1774 struct ieee80211_sub_if_data *sdata, 1775 enum queue_stop_reason reason); 1776 void ieee80211_wake_vif_queues(struct ieee80211_local *local, 1777 struct ieee80211_sub_if_data *sdata, 1778 enum queue_stop_reason reason); 1779 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, 1780 unsigned long queues, 1781 enum queue_stop_reason reason, 1782 bool refcounted); 1783 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, 1784 enum queue_stop_reason reason, 1785 bool refcounted); 1786 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, 1787 enum queue_stop_reason reason, 1788 bool refcounted); 1789 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue); 1790 void ieee80211_add_pending_skb(struct ieee80211_local *local, 1791 struct sk_buff *skb); 1792 void ieee80211_add_pending_skbs(struct ieee80211_local *local, 1793 struct sk_buff_head *skbs); 1794 void ieee80211_flush_queues(struct ieee80211_local *local, 1795 struct ieee80211_sub_if_data *sdata); 1796 1797 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, 1798 u16 transaction, u16 auth_alg, u16 status, 1799 const u8 *extra, size_t extra_len, const u8 *bssid, 1800 const u8 *da, const u8 *key, u8 key_len, u8 key_idx, 1801 u32 tx_flags); 1802 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, 1803 const u8 *bssid, u16 stype, u16 reason, 1804 bool send_frame, u8 *frame_buf); 1805 int ieee80211_build_preq_ies(struct ieee80211_local *local, u8 *buffer, 1806 size_t buffer_len, 1807 struct ieee80211_scan_ies *ie_desc, 1808 const u8 *ie, size_t ie_len, 1809 u8 bands_used, u32 *rate_masks, 1810 struct cfg80211_chan_def *chandef); 1811 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, 1812 u8 *dst, u32 ratemask, 1813 struct ieee80211_channel *chan, 1814 const u8 *ssid, size_t ssid_len, 1815 const u8 *ie, size_t ie_len, 1816 bool directed); 1817 void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst, 1818 const u8 *ssid, size_t ssid_len, 1819 const u8 *ie, size_t ie_len, 1820 u32 ratemask, bool directed, u32 tx_flags, 1821 struct ieee80211_channel *channel, bool scan); 1822 1823 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, 1824 struct ieee802_11_elems *elems, 1825 enum ieee80211_band band, u32 *basic_rates); 1826 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 1827 enum ieee80211_smps_mode smps_mode); 1828 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, 1829 enum ieee80211_smps_mode smps_mode); 1830 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata); 1831 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata); 1832 1833 size_t ieee80211_ie_split(const u8 *ies, size_t ielen, 1834 const u8 *ids, int n_ids, size_t offset); 1835 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset); 1836 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 1837 u16 cap); 1838 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, 1839 const struct cfg80211_chan_def *chandef, 1840 u16 prot_mode); 1841 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, 1842 u32 cap); 1843 int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef, 1844 const struct ieee80211_supported_band *sband, 1845 const u8 *srates, int srates_len, u32 *rates); 1846 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, 1847 struct sk_buff *skb, bool need_basic, 1848 enum ieee80211_band band); 1849 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, 1850 struct sk_buff *skb, bool need_basic, 1851 enum ieee80211_band band); 1852 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo); 1853 1854 /* channel management */ 1855 void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan, 1856 const struct ieee80211_ht_operation *ht_oper, 1857 struct cfg80211_chan_def *chandef); 1858 u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c); 1859 1860 int __must_check 1861 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata, 1862 const struct cfg80211_chan_def *chandef, 1863 enum ieee80211_chanctx_mode mode); 1864 int __must_check 1865 ieee80211_vif_reserve_chanctx(struct ieee80211_sub_if_data *sdata, 1866 const struct cfg80211_chan_def *chandef, 1867 enum ieee80211_chanctx_mode mode, 1868 bool radar_required); 1869 int __must_check 1870 ieee80211_vif_use_reserved_context(struct ieee80211_sub_if_data *sdata); 1871 int ieee80211_vif_unreserve_chanctx(struct ieee80211_sub_if_data *sdata); 1872 int ieee80211_vif_use_reserved_switch(struct ieee80211_local *local); 1873 1874 int __must_check 1875 ieee80211_vif_change_bandwidth(struct ieee80211_sub_if_data *sdata, 1876 const struct cfg80211_chan_def *chandef, 1877 u32 *changed); 1878 void ieee80211_vif_release_channel(struct ieee80211_sub_if_data *sdata); 1879 void ieee80211_vif_vlan_copy_chanctx(struct ieee80211_sub_if_data *sdata); 1880 void ieee80211_vif_copy_chanctx_to_vlans(struct ieee80211_sub_if_data *sdata, 1881 bool clear); 1882 int ieee80211_chanctx_refcount(struct ieee80211_local *local, 1883 struct ieee80211_chanctx *ctx); 1884 1885 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local, 1886 struct ieee80211_chanctx *chanctx); 1887 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local, 1888 struct ieee80211_chanctx *ctx); 1889 1890 void ieee80211_dfs_cac_timer(unsigned long data); 1891 void ieee80211_dfs_cac_timer_work(struct work_struct *work); 1892 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local); 1893 void ieee80211_dfs_radar_detected_work(struct work_struct *work); 1894 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, 1895 struct cfg80211_csa_settings *csa_settings); 1896 1897 bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs); 1898 bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n); 1899 const struct ieee80211_cipher_scheme * 1900 ieee80211_cs_get(struct ieee80211_local *local, u32 cipher, 1901 enum nl80211_iftype iftype); 1902 int ieee80211_cs_headroom(struct ieee80211_local *local, 1903 struct cfg80211_crypto_settings *crypto, 1904 enum nl80211_iftype iftype); 1905 void ieee80211_recalc_dtim(struct ieee80211_local *local, 1906 struct ieee80211_sub_if_data *sdata); 1907 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, 1908 const struct cfg80211_chan_def *chandef, 1909 enum ieee80211_chanctx_mode chanmode, 1910 u8 radar_detect); 1911 int ieee80211_max_num_channels(struct ieee80211_local *local); 1912 1913 /* TDLS */ 1914 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 1915 const u8 *peer, u8 action_code, u8 dialog_token, 1916 u16 status_code, u32 peer_capability, 1917 bool initiator, const u8 *extra_ies, 1918 size_t extra_ies_len); 1919 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 1920 const u8 *peer, enum nl80211_tdls_operation oper); 1921 1922 1923 extern const struct ethtool_ops ieee80211_ethtool_ops; 1924 1925 #ifdef CONFIG_MAC80211_NOINLINE 1926 #define debug_noinline noinline 1927 #else 1928 #define debug_noinline 1929 #endif 1930 1931 #endif /* IEEE80211_I_H */ 1932 void ieee80211_tdls_peer_del_work(struct work_struct *wk); 1933