cfg.c revision d34ba2168a3c10e7301cca06069c39865b4c3ec6
1/* 2 * mac80211 configuration hooks for cfg80211 3 * 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 5 * 6 * This file is GPLv2 as found in COPYING. 7 */ 8 9#include <linux/ieee80211.h> 10#include <linux/nl80211.h> 11#include <linux/rtnetlink.h> 12#include <linux/slab.h> 13#include <net/net_namespace.h> 14#include <linux/rcupdate.h> 15#include <linux/if_ether.h> 16#include <net/cfg80211.h> 17#include "ieee80211_i.h" 18#include "driver-ops.h" 19#include "cfg.h" 20#include "rate.h" 21#include "mesh.h" 22 23static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 24 const char *name, 25 enum nl80211_iftype type, 26 u32 *flags, 27 struct vif_params *params) 28{ 29 struct ieee80211_local *local = wiphy_priv(wiphy); 30 struct wireless_dev *wdev; 31 struct ieee80211_sub_if_data *sdata; 32 int err; 33 34 err = ieee80211_if_add(local, name, &wdev, type, params); 35 if (err) 36 return ERR_PTR(err); 37 38 if (type == NL80211_IFTYPE_MONITOR && flags) { 39 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 40 sdata->u.mntr_flags = *flags; 41 } 42 43 return wdev; 44} 45 46static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 47{ 48 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 49 50 return 0; 51} 52 53static int ieee80211_change_iface(struct wiphy *wiphy, 54 struct net_device *dev, 55 enum nl80211_iftype type, u32 *flags, 56 struct vif_params *params) 57{ 58 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 59 int ret; 60 61 ret = ieee80211_if_change_type(sdata, type); 62 if (ret) 63 return ret; 64 65 if (type == NL80211_IFTYPE_AP_VLAN && 66 params && params->use_4addr == 0) 67 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 68 else if (type == NL80211_IFTYPE_STATION && 69 params && params->use_4addr >= 0) 70 sdata->u.mgd.use_4addr = params->use_4addr; 71 72 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) { 73 struct ieee80211_local *local = sdata->local; 74 75 if (ieee80211_sdata_running(sdata)) { 76 u32 mask = MONITOR_FLAG_COOK_FRAMES | 77 MONITOR_FLAG_ACTIVE; 78 79 /* 80 * Prohibit MONITOR_FLAG_COOK_FRAMES and 81 * MONITOR_FLAG_ACTIVE to be changed while the 82 * interface is up. 83 * Else we would need to add a lot of cruft 84 * to update everything: 85 * cooked_mntrs, monitor and all fif_* counters 86 * reconfigure hardware 87 */ 88 if ((*flags & mask) != (sdata->u.mntr_flags & mask)) 89 return -EBUSY; 90 91 ieee80211_adjust_monitor_flags(sdata, -1); 92 sdata->u.mntr_flags = *flags; 93 ieee80211_adjust_monitor_flags(sdata, 1); 94 95 ieee80211_configure_filter(local); 96 } else { 97 /* 98 * Because the interface is down, ieee80211_do_stop 99 * and ieee80211_do_open take care of "everything" 100 * mentioned in the comment above. 101 */ 102 sdata->u.mntr_flags = *flags; 103 } 104 } 105 106 return 0; 107} 108 109static int ieee80211_start_p2p_device(struct wiphy *wiphy, 110 struct wireless_dev *wdev) 111{ 112 return ieee80211_do_open(wdev, true); 113} 114 115static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 116 struct wireless_dev *wdev) 117{ 118 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 119} 120 121static int ieee80211_set_noack_map(struct wiphy *wiphy, 122 struct net_device *dev, 123 u16 noack_map) 124{ 125 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 126 127 sdata->noack_map = noack_map; 128 return 0; 129} 130 131static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 132 u8 key_idx, bool pairwise, const u8 *mac_addr, 133 struct key_params *params) 134{ 135 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 136 struct ieee80211_local *local = sdata->local; 137 struct sta_info *sta = NULL; 138 const struct ieee80211_cipher_scheme *cs = NULL; 139 struct ieee80211_key *key; 140 int err; 141 142 if (!ieee80211_sdata_running(sdata)) 143 return -ENETDOWN; 144 145 /* reject WEP and TKIP keys if WEP failed to initialize */ 146 switch (params->cipher) { 147 case WLAN_CIPHER_SUITE_WEP40: 148 case WLAN_CIPHER_SUITE_TKIP: 149 case WLAN_CIPHER_SUITE_WEP104: 150 if (IS_ERR(local->wep_tx_tfm)) 151 return -EINVAL; 152 break; 153 case WLAN_CIPHER_SUITE_CCMP: 154 case WLAN_CIPHER_SUITE_AES_CMAC: 155 case WLAN_CIPHER_SUITE_GCMP: 156 break; 157 default: 158 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); 159 break; 160 } 161 162 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 163 params->key, params->seq_len, params->seq, 164 cs); 165 if (IS_ERR(key)) 166 return PTR_ERR(key); 167 168 if (pairwise) 169 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 170 171 mutex_lock(&local->sta_mtx); 172 173 if (mac_addr) { 174 if (ieee80211_vif_is_mesh(&sdata->vif)) 175 sta = sta_info_get(sdata, mac_addr); 176 else 177 sta = sta_info_get_bss(sdata, mac_addr); 178 /* 179 * The ASSOC test makes sure the driver is ready to 180 * receive the key. When wpa_supplicant has roamed 181 * using FT, it attempts to set the key before 182 * association has completed, this rejects that attempt 183 * so it will set the key again after assocation. 184 * 185 * TODO: accept the key if we have a station entry and 186 * add it to the device after the station. 187 */ 188 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 189 ieee80211_key_free_unused(key); 190 err = -ENOENT; 191 goto out_unlock; 192 } 193 } 194 195 switch (sdata->vif.type) { 196 case NL80211_IFTYPE_STATION: 197 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 198 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 199 break; 200 case NL80211_IFTYPE_AP: 201 case NL80211_IFTYPE_AP_VLAN: 202 /* Keys without a station are used for TX only */ 203 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP)) 204 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 205 break; 206 case NL80211_IFTYPE_ADHOC: 207 /* no MFP (yet) */ 208 break; 209 case NL80211_IFTYPE_MESH_POINT: 210#ifdef CONFIG_MAC80211_MESH 211 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 212 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 213 break; 214#endif 215 case NL80211_IFTYPE_WDS: 216 case NL80211_IFTYPE_MONITOR: 217 case NL80211_IFTYPE_P2P_DEVICE: 218 case NL80211_IFTYPE_UNSPECIFIED: 219 case NUM_NL80211_IFTYPES: 220 case NL80211_IFTYPE_P2P_CLIENT: 221 case NL80211_IFTYPE_P2P_GO: 222 /* shouldn't happen */ 223 WARN_ON_ONCE(1); 224 break; 225 } 226 227 if (sta) 228 sta->cipher_scheme = cs; 229 230 err = ieee80211_key_link(key, sdata, sta); 231 232 out_unlock: 233 mutex_unlock(&local->sta_mtx); 234 235 return err; 236} 237 238static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 239 u8 key_idx, bool pairwise, const u8 *mac_addr) 240{ 241 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 242 struct ieee80211_local *local = sdata->local; 243 struct sta_info *sta; 244 struct ieee80211_key *key = NULL; 245 int ret; 246 247 mutex_lock(&local->sta_mtx); 248 mutex_lock(&local->key_mtx); 249 250 if (mac_addr) { 251 ret = -ENOENT; 252 253 sta = sta_info_get_bss(sdata, mac_addr); 254 if (!sta) 255 goto out_unlock; 256 257 if (pairwise) 258 key = key_mtx_dereference(local, sta->ptk[key_idx]); 259 else 260 key = key_mtx_dereference(local, sta->gtk[key_idx]); 261 } else 262 key = key_mtx_dereference(local, sdata->keys[key_idx]); 263 264 if (!key) { 265 ret = -ENOENT; 266 goto out_unlock; 267 } 268 269 ieee80211_key_free(key, true); 270 271 ret = 0; 272 out_unlock: 273 mutex_unlock(&local->key_mtx); 274 mutex_unlock(&local->sta_mtx); 275 276 return ret; 277} 278 279static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 280 u8 key_idx, bool pairwise, const u8 *mac_addr, 281 void *cookie, 282 void (*callback)(void *cookie, 283 struct key_params *params)) 284{ 285 struct ieee80211_sub_if_data *sdata; 286 struct sta_info *sta = NULL; 287 u8 seq[6] = {0}; 288 struct key_params params; 289 struct ieee80211_key *key = NULL; 290 u64 pn64; 291 u32 iv32; 292 u16 iv16; 293 int err = -ENOENT; 294 295 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 296 297 rcu_read_lock(); 298 299 if (mac_addr) { 300 sta = sta_info_get_bss(sdata, mac_addr); 301 if (!sta) 302 goto out; 303 304 if (pairwise) 305 key = rcu_dereference(sta->ptk[key_idx]); 306 else if (key_idx < NUM_DEFAULT_KEYS) 307 key = rcu_dereference(sta->gtk[key_idx]); 308 } else 309 key = rcu_dereference(sdata->keys[key_idx]); 310 311 if (!key) 312 goto out; 313 314 memset(¶ms, 0, sizeof(params)); 315 316 params.cipher = key->conf.cipher; 317 318 switch (key->conf.cipher) { 319 case WLAN_CIPHER_SUITE_TKIP: 320 iv32 = key->u.tkip.tx.iv32; 321 iv16 = key->u.tkip.tx.iv16; 322 323 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) 324 drv_get_tkip_seq(sdata->local, 325 key->conf.hw_key_idx, 326 &iv32, &iv16); 327 328 seq[0] = iv16 & 0xff; 329 seq[1] = (iv16 >> 8) & 0xff; 330 seq[2] = iv32 & 0xff; 331 seq[3] = (iv32 >> 8) & 0xff; 332 seq[4] = (iv32 >> 16) & 0xff; 333 seq[5] = (iv32 >> 24) & 0xff; 334 params.seq = seq; 335 params.seq_len = 6; 336 break; 337 case WLAN_CIPHER_SUITE_CCMP: 338 pn64 = atomic64_read(&key->u.ccmp.tx_pn); 339 seq[0] = pn64; 340 seq[1] = pn64 >> 8; 341 seq[2] = pn64 >> 16; 342 seq[3] = pn64 >> 24; 343 seq[4] = pn64 >> 32; 344 seq[5] = pn64 >> 40; 345 params.seq = seq; 346 params.seq_len = 6; 347 break; 348 case WLAN_CIPHER_SUITE_AES_CMAC: 349 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn); 350 seq[0] = pn64; 351 seq[1] = pn64 >> 8; 352 seq[2] = pn64 >> 16; 353 seq[3] = pn64 >> 24; 354 seq[4] = pn64 >> 32; 355 seq[5] = pn64 >> 40; 356 params.seq = seq; 357 params.seq_len = 6; 358 break; 359 } 360 361 params.key = key->conf.key; 362 params.key_len = key->conf.keylen; 363 364 callback(cookie, ¶ms); 365 err = 0; 366 367 out: 368 rcu_read_unlock(); 369 return err; 370} 371 372static int ieee80211_config_default_key(struct wiphy *wiphy, 373 struct net_device *dev, 374 u8 key_idx, bool uni, 375 bool multi) 376{ 377 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 378 379 ieee80211_set_default_key(sdata, key_idx, uni, multi); 380 381 return 0; 382} 383 384static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 385 struct net_device *dev, 386 u8 key_idx) 387{ 388 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 389 390 ieee80211_set_default_mgmt_key(sdata, key_idx); 391 392 return 0; 393} 394 395void sta_set_rate_info_tx(struct sta_info *sta, 396 const struct ieee80211_tx_rate *rate, 397 struct rate_info *rinfo) 398{ 399 rinfo->flags = 0; 400 if (rate->flags & IEEE80211_TX_RC_MCS) { 401 rinfo->flags |= RATE_INFO_FLAGS_MCS; 402 rinfo->mcs = rate->idx; 403 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 404 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 405 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 406 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 407 } else { 408 struct ieee80211_supported_band *sband; 409 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 410 u16 brate; 411 412 sband = sta->local->hw.wiphy->bands[ 413 ieee80211_get_sdata_band(sta->sdata)]; 414 brate = sband->bitrates[rate->idx].bitrate; 415 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 416 } 417 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 418 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; 419 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 420 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH; 421 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 422 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH; 423 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 424 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 425} 426 427void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo) 428{ 429 rinfo->flags = 0; 430 431 if (sta->last_rx_rate_flag & RX_FLAG_HT) { 432 rinfo->flags |= RATE_INFO_FLAGS_MCS; 433 rinfo->mcs = sta->last_rx_rate_idx; 434 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) { 435 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 436 rinfo->nss = sta->last_rx_rate_vht_nss; 437 rinfo->mcs = sta->last_rx_rate_idx; 438 } else { 439 struct ieee80211_supported_band *sband; 440 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 441 u16 brate; 442 443 sband = sta->local->hw.wiphy->bands[ 444 ieee80211_get_sdata_band(sta->sdata)]; 445 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate; 446 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 447 } 448 449 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ) 450 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; 451 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI) 452 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 453 if (sta->last_rx_rate_flag & RX_FLAG_80MHZ) 454 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH; 455 if (sta->last_rx_rate_flag & RX_FLAG_80P80MHZ) 456 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH; 457 if (sta->last_rx_rate_flag & RX_FLAG_160MHZ) 458 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH; 459} 460 461static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) 462{ 463 struct ieee80211_sub_if_data *sdata = sta->sdata; 464 struct ieee80211_local *local = sdata->local; 465 struct timespec uptime; 466 u64 packets = 0; 467 int i, ac; 468 469 sinfo->generation = sdata->local->sta_generation; 470 471 sinfo->filled = STATION_INFO_INACTIVE_TIME | 472 STATION_INFO_RX_BYTES64 | 473 STATION_INFO_TX_BYTES64 | 474 STATION_INFO_RX_PACKETS | 475 STATION_INFO_TX_PACKETS | 476 STATION_INFO_TX_RETRIES | 477 STATION_INFO_TX_FAILED | 478 STATION_INFO_TX_BITRATE | 479 STATION_INFO_RX_BITRATE | 480 STATION_INFO_RX_DROP_MISC | 481 STATION_INFO_BSS_PARAM | 482 STATION_INFO_CONNECTED_TIME | 483 STATION_INFO_STA_FLAGS | 484 STATION_INFO_BEACON_LOSS_COUNT; 485 486 do_posix_clock_monotonic_gettime(&uptime); 487 sinfo->connected_time = uptime.tv_sec - sta->last_connected; 488 489 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx); 490 sinfo->tx_bytes = 0; 491 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 492 sinfo->tx_bytes += sta->tx_bytes[ac]; 493 packets += sta->tx_packets[ac]; 494 } 495 sinfo->tx_packets = packets; 496 sinfo->rx_bytes = sta->rx_bytes; 497 sinfo->rx_packets = sta->rx_packets; 498 sinfo->tx_retries = sta->tx_retry_count; 499 sinfo->tx_failed = sta->tx_retry_failed; 500 sinfo->rx_dropped_misc = sta->rx_dropped; 501 sinfo->beacon_loss_count = sta->beacon_loss_count; 502 503 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) || 504 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) { 505 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG; 506 if (!local->ops->get_rssi || 507 drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal)) 508 sinfo->signal = (s8)sta->last_signal; 509 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal); 510 } 511 if (sta->chains) { 512 sinfo->filled |= STATION_INFO_CHAIN_SIGNAL | 513 STATION_INFO_CHAIN_SIGNAL_AVG; 514 515 sinfo->chains = sta->chains; 516 for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) { 517 sinfo->chain_signal[i] = sta->chain_signal_last[i]; 518 sinfo->chain_signal_avg[i] = 519 (s8) -ewma_read(&sta->chain_signal_avg[i]); 520 } 521 } 522 523 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate); 524 sta_set_rate_info_rx(sta, &sinfo->rxrate); 525 526 if (ieee80211_vif_is_mesh(&sdata->vif)) { 527#ifdef CONFIG_MAC80211_MESH 528 sinfo->filled |= STATION_INFO_LLID | 529 STATION_INFO_PLID | 530 STATION_INFO_PLINK_STATE | 531 STATION_INFO_LOCAL_PM | 532 STATION_INFO_PEER_PM | 533 STATION_INFO_NONPEER_PM; 534 535 sinfo->llid = sta->llid; 536 sinfo->plid = sta->plid; 537 sinfo->plink_state = sta->plink_state; 538 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) { 539 sinfo->filled |= STATION_INFO_T_OFFSET; 540 sinfo->t_offset = sta->t_offset; 541 } 542 sinfo->local_pm = sta->local_pm; 543 sinfo->peer_pm = sta->peer_pm; 544 sinfo->nonpeer_pm = sta->nonpeer_pm; 545#endif 546 } 547 548 sinfo->bss_param.flags = 0; 549 if (sdata->vif.bss_conf.use_cts_prot) 550 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT; 551 if (sdata->vif.bss_conf.use_short_preamble) 552 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE; 553 if (sdata->vif.bss_conf.use_short_slot) 554 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME; 555 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period; 556 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int; 557 558 sinfo->sta_flags.set = 0; 559 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | 560 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | 561 BIT(NL80211_STA_FLAG_WME) | 562 BIT(NL80211_STA_FLAG_MFP) | 563 BIT(NL80211_STA_FLAG_AUTHENTICATED) | 564 BIT(NL80211_STA_FLAG_ASSOCIATED) | 565 BIT(NL80211_STA_FLAG_TDLS_PEER); 566 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 567 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED); 568 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE)) 569 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 570 if (test_sta_flag(sta, WLAN_STA_WME)) 571 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME); 572 if (test_sta_flag(sta, WLAN_STA_MFP)) 573 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP); 574 if (test_sta_flag(sta, WLAN_STA_AUTH)) 575 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED); 576 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 577 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 578 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) 579 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER); 580} 581 582static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = { 583 "rx_packets", "rx_bytes", "wep_weak_iv_count", 584 "rx_duplicates", "rx_fragments", "rx_dropped", 585 "tx_packets", "tx_bytes", "tx_fragments", 586 "tx_filtered", "tx_retry_failed", "tx_retries", 587 "beacon_loss", "sta_state", "txrate", "rxrate", "signal", 588 "channel", "noise", "ch_time", "ch_time_busy", 589 "ch_time_ext_busy", "ch_time_rx", "ch_time_tx" 590}; 591#define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats) 592 593static int ieee80211_get_et_sset_count(struct wiphy *wiphy, 594 struct net_device *dev, 595 int sset) 596{ 597 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 598 int rv = 0; 599 600 if (sset == ETH_SS_STATS) 601 rv += STA_STATS_LEN; 602 603 rv += drv_get_et_sset_count(sdata, sset); 604 605 if (rv == 0) 606 return -EOPNOTSUPP; 607 return rv; 608} 609 610static void ieee80211_get_et_stats(struct wiphy *wiphy, 611 struct net_device *dev, 612 struct ethtool_stats *stats, 613 u64 *data) 614{ 615 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 616 struct ieee80211_chanctx_conf *chanctx_conf; 617 struct ieee80211_channel *channel; 618 struct sta_info *sta; 619 struct ieee80211_local *local = sdata->local; 620 struct station_info sinfo; 621 struct survey_info survey; 622 int i, q; 623#define STA_STATS_SURVEY_LEN 7 624 625 memset(data, 0, sizeof(u64) * STA_STATS_LEN); 626 627#define ADD_STA_STATS(sta) \ 628 do { \ 629 data[i++] += sta->rx_packets; \ 630 data[i++] += sta->rx_bytes; \ 631 data[i++] += sta->wep_weak_iv_count; \ 632 data[i++] += sta->num_duplicates; \ 633 data[i++] += sta->rx_fragments; \ 634 data[i++] += sta->rx_dropped; \ 635 \ 636 data[i++] += sinfo.tx_packets; \ 637 data[i++] += sinfo.tx_bytes; \ 638 data[i++] += sta->tx_fragments; \ 639 data[i++] += sta->tx_filtered_count; \ 640 data[i++] += sta->tx_retry_failed; \ 641 data[i++] += sta->tx_retry_count; \ 642 data[i++] += sta->beacon_loss_count; \ 643 } while (0) 644 645 /* For Managed stations, find the single station based on BSSID 646 * and use that. For interface types, iterate through all available 647 * stations and add stats for any station that is assigned to this 648 * network device. 649 */ 650 651 mutex_lock(&local->sta_mtx); 652 653 if (sdata->vif.type == NL80211_IFTYPE_STATION) { 654 sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid); 655 656 if (!(sta && !WARN_ON(sta->sdata->dev != dev))) 657 goto do_survey; 658 659 sinfo.filled = 0; 660 sta_set_sinfo(sta, &sinfo); 661 662 i = 0; 663 ADD_STA_STATS(sta); 664 665 data[i++] = sta->sta_state; 666 667 668 if (sinfo.filled & STATION_INFO_TX_BITRATE) 669 data[i] = 100000 * 670 cfg80211_calculate_bitrate(&sinfo.txrate); 671 i++; 672 if (sinfo.filled & STATION_INFO_RX_BITRATE) 673 data[i] = 100000 * 674 cfg80211_calculate_bitrate(&sinfo.rxrate); 675 i++; 676 677 if (sinfo.filled & STATION_INFO_SIGNAL_AVG) 678 data[i] = (u8)sinfo.signal_avg; 679 i++; 680 } else { 681 list_for_each_entry(sta, &local->sta_list, list) { 682 /* Make sure this station belongs to the proper dev */ 683 if (sta->sdata->dev != dev) 684 continue; 685 686 sinfo.filled = 0; 687 sta_set_sinfo(sta, &sinfo); 688 i = 0; 689 ADD_STA_STATS(sta); 690 } 691 } 692 693do_survey: 694 i = STA_STATS_LEN - STA_STATS_SURVEY_LEN; 695 /* Get survey stats for current channel */ 696 survey.filled = 0; 697 698 rcu_read_lock(); 699 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 700 if (chanctx_conf) 701 channel = chanctx_conf->def.chan; 702 else 703 channel = NULL; 704 rcu_read_unlock(); 705 706 if (channel) { 707 q = 0; 708 do { 709 survey.filled = 0; 710 if (drv_get_survey(local, q, &survey) != 0) { 711 survey.filled = 0; 712 break; 713 } 714 q++; 715 } while (channel != survey.channel); 716 } 717 718 if (survey.filled) 719 data[i++] = survey.channel->center_freq; 720 else 721 data[i++] = 0; 722 if (survey.filled & SURVEY_INFO_NOISE_DBM) 723 data[i++] = (u8)survey.noise; 724 else 725 data[i++] = -1LL; 726 if (survey.filled & SURVEY_INFO_CHANNEL_TIME) 727 data[i++] = survey.channel_time; 728 else 729 data[i++] = -1LL; 730 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY) 731 data[i++] = survey.channel_time_busy; 732 else 733 data[i++] = -1LL; 734 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) 735 data[i++] = survey.channel_time_ext_busy; 736 else 737 data[i++] = -1LL; 738 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX) 739 data[i++] = survey.channel_time_rx; 740 else 741 data[i++] = -1LL; 742 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX) 743 data[i++] = survey.channel_time_tx; 744 else 745 data[i++] = -1LL; 746 747 mutex_unlock(&local->sta_mtx); 748 749 if (WARN_ON(i != STA_STATS_LEN)) 750 return; 751 752 drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN])); 753} 754 755static void ieee80211_get_et_strings(struct wiphy *wiphy, 756 struct net_device *dev, 757 u32 sset, u8 *data) 758{ 759 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 760 int sz_sta_stats = 0; 761 762 if (sset == ETH_SS_STATS) { 763 sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats); 764 memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats); 765 } 766 drv_get_et_strings(sdata, sset, &(data[sz_sta_stats])); 767} 768 769static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 770 int idx, u8 *mac, struct station_info *sinfo) 771{ 772 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 773 struct ieee80211_local *local = sdata->local; 774 struct sta_info *sta; 775 int ret = -ENOENT; 776 777 mutex_lock(&local->sta_mtx); 778 779 sta = sta_info_get_by_idx(sdata, idx); 780 if (sta) { 781 ret = 0; 782 memcpy(mac, sta->sta.addr, ETH_ALEN); 783 sta_set_sinfo(sta, sinfo); 784 } 785 786 mutex_unlock(&local->sta_mtx); 787 788 return ret; 789} 790 791static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 792 int idx, struct survey_info *survey) 793{ 794 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 795 796 return drv_get_survey(local, idx, survey); 797} 798 799static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 800 u8 *mac, struct station_info *sinfo) 801{ 802 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 803 struct ieee80211_local *local = sdata->local; 804 struct sta_info *sta; 805 int ret = -ENOENT; 806 807 mutex_lock(&local->sta_mtx); 808 809 sta = sta_info_get_bss(sdata, mac); 810 if (sta) { 811 ret = 0; 812 sta_set_sinfo(sta, sinfo); 813 } 814 815 mutex_unlock(&local->sta_mtx); 816 817 return ret; 818} 819 820static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 821 struct cfg80211_chan_def *chandef) 822{ 823 struct ieee80211_local *local = wiphy_priv(wiphy); 824 struct ieee80211_sub_if_data *sdata; 825 int ret = 0; 826 827 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 828 return 0; 829 830 mutex_lock(&local->iflist_mtx); 831 if (local->use_chanctx) { 832 sdata = rcu_dereference_protected( 833 local->monitor_sdata, 834 lockdep_is_held(&local->iflist_mtx)); 835 if (sdata) { 836 ieee80211_vif_release_channel(sdata); 837 ret = ieee80211_vif_use_channel(sdata, chandef, 838 IEEE80211_CHANCTX_EXCLUSIVE); 839 } 840 } else if (local->open_count == local->monitors) { 841 local->_oper_chandef = *chandef; 842 ieee80211_hw_config(local, 0); 843 } 844 845 if (ret == 0) 846 local->monitor_chandef = *chandef; 847 mutex_unlock(&local->iflist_mtx); 848 849 return ret; 850} 851 852static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 853 const u8 *resp, size_t resp_len) 854{ 855 struct probe_resp *new, *old; 856 857 if (!resp || !resp_len) 858 return 1; 859 860 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 861 862 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 863 if (!new) 864 return -ENOMEM; 865 866 new->len = resp_len; 867 memcpy(new->data, resp, resp_len); 868 869 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 870 if (old) 871 kfree_rcu(old, rcu_head); 872 873 return 0; 874} 875 876int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 877 struct cfg80211_beacon_data *params) 878{ 879 struct beacon_data *new, *old; 880 int new_head_len, new_tail_len; 881 int size, err; 882 u32 changed = BSS_CHANGED_BEACON; 883 884 old = sdata_dereference(sdata->u.ap.beacon, sdata); 885 886 887 /* Need to have a beacon head if we don't have one yet */ 888 if (!params->head && !old) 889 return -EINVAL; 890 891 /* new or old head? */ 892 if (params->head) 893 new_head_len = params->head_len; 894 else 895 new_head_len = old->head_len; 896 897 /* new or old tail? */ 898 if (params->tail || !old) 899 /* params->tail_len will be zero for !params->tail */ 900 new_tail_len = params->tail_len; 901 else 902 new_tail_len = old->tail_len; 903 904 size = sizeof(*new) + new_head_len + new_tail_len; 905 906 new = kzalloc(size, GFP_KERNEL); 907 if (!new) 908 return -ENOMEM; 909 910 /* start filling the new info now */ 911 912 /* 913 * pointers go into the block we allocated, 914 * memory is | beacon_data | head | tail | 915 */ 916 new->head = ((u8 *) new) + sizeof(*new); 917 new->tail = new->head + new_head_len; 918 new->head_len = new_head_len; 919 new->tail_len = new_tail_len; 920 921 /* copy in head */ 922 if (params->head) 923 memcpy(new->head, params->head, new_head_len); 924 else 925 memcpy(new->head, old->head, new_head_len); 926 927 /* copy in optional tail */ 928 if (params->tail) 929 memcpy(new->tail, params->tail, new_tail_len); 930 else 931 if (old) 932 memcpy(new->tail, old->tail, new_tail_len); 933 934 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 935 params->probe_resp_len); 936 if (err < 0) 937 return err; 938 if (err == 0) 939 changed |= BSS_CHANGED_AP_PROBE_RESP; 940 941 rcu_assign_pointer(sdata->u.ap.beacon, new); 942 943 if (old) 944 kfree_rcu(old, rcu_head); 945 946 return changed; 947} 948 949static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 950 struct cfg80211_ap_settings *params) 951{ 952 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 953 struct beacon_data *old; 954 struct ieee80211_sub_if_data *vlan; 955 u32 changed = BSS_CHANGED_BEACON_INT | 956 BSS_CHANGED_BEACON_ENABLED | 957 BSS_CHANGED_BEACON | 958 BSS_CHANGED_SSID | 959 BSS_CHANGED_P2P_PS; 960 int err; 961 962 old = sdata_dereference(sdata->u.ap.beacon, sdata); 963 if (old) 964 return -EALREADY; 965 966 /* TODO: make hostapd tell us what it wants */ 967 sdata->smps_mode = IEEE80211_SMPS_OFF; 968 sdata->needed_rx_chains = sdata->local->rx_chains; 969 sdata->radar_required = params->radar_required; 970 971 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 972 IEEE80211_CHANCTX_SHARED); 973 if (err) 974 return err; 975 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 976 977 /* 978 * Apply control port protocol, this allows us to 979 * not encrypt dynamic WEP control frames. 980 */ 981 sdata->control_port_protocol = params->crypto.control_port_ethertype; 982 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 983 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 984 ¶ms->crypto, 985 sdata->vif.type); 986 987 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 988 vlan->control_port_protocol = 989 params->crypto.control_port_ethertype; 990 vlan->control_port_no_encrypt = 991 params->crypto.control_port_no_encrypt; 992 vlan->encrypt_headroom = 993 ieee80211_cs_headroom(sdata->local, 994 ¶ms->crypto, 995 vlan->vif.type); 996 } 997 998 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 999 sdata->vif.bss_conf.dtim_period = params->dtim_period; 1000 sdata->vif.bss_conf.enable_beacon = true; 1001 1002 sdata->vif.bss_conf.ssid_len = params->ssid_len; 1003 if (params->ssid_len) 1004 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 1005 params->ssid_len); 1006 sdata->vif.bss_conf.hidden_ssid = 1007 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1008 1009 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 1010 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 1011 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 1012 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1013 if (params->p2p_opp_ps) 1014 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1015 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1016 1017 err = ieee80211_assign_beacon(sdata, ¶ms->beacon); 1018 if (err < 0) 1019 return err; 1020 changed |= err; 1021 1022 err = drv_start_ap(sdata->local, sdata); 1023 if (err) { 1024 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1025 1026 if (old) 1027 kfree_rcu(old, rcu_head); 1028 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1029 return err; 1030 } 1031 1032 ieee80211_bss_info_change_notify(sdata, changed); 1033 1034 netif_carrier_on(dev); 1035 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1036 netif_carrier_on(vlan->dev); 1037 1038 return 0; 1039} 1040 1041static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1042 struct cfg80211_beacon_data *params) 1043{ 1044 struct ieee80211_sub_if_data *sdata; 1045 struct beacon_data *old; 1046 int err; 1047 1048 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1049 1050 /* don't allow changing the beacon while CSA is in place - offset 1051 * of channel switch counter may change 1052 */ 1053 if (sdata->vif.csa_active) 1054 return -EBUSY; 1055 1056 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1057 if (!old) 1058 return -ENOENT; 1059 1060 err = ieee80211_assign_beacon(sdata, params); 1061 if (err < 0) 1062 return err; 1063 ieee80211_bss_info_change_notify(sdata, err); 1064 return 0; 1065} 1066 1067static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1068{ 1069 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1070 struct ieee80211_sub_if_data *vlan; 1071 struct ieee80211_local *local = sdata->local; 1072 struct beacon_data *old_beacon; 1073 struct probe_resp *old_probe_resp; 1074 struct cfg80211_chan_def chandef; 1075 1076 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1077 if (!old_beacon) 1078 return -ENOENT; 1079 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1080 1081 /* abort any running channel switch */ 1082 sdata->vif.csa_active = false; 1083 kfree(sdata->u.ap.next_beacon); 1084 sdata->u.ap.next_beacon = NULL; 1085 1086 cancel_work_sync(&sdata->u.ap.request_smps_work); 1087 1088 /* turn off carrier for this interface and dependent VLANs */ 1089 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1090 netif_carrier_off(vlan->dev); 1091 netif_carrier_off(dev); 1092 1093 /* remove beacon and probe response */ 1094 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1095 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1096 kfree_rcu(old_beacon, rcu_head); 1097 if (old_probe_resp) 1098 kfree_rcu(old_probe_resp, rcu_head); 1099 1100 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1101 sta_info_flush(vlan); 1102 sta_info_flush(sdata); 1103 synchronize_net(); 1104 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1105 ieee80211_free_keys(vlan); 1106 ieee80211_free_keys(sdata); 1107 1108 sdata->vif.bss_conf.enable_beacon = false; 1109 sdata->vif.bss_conf.ssid_len = 0; 1110 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1111 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1112 1113 if (sdata->wdev.cac_started) { 1114 chandef = sdata->vif.bss_conf.chandef; 1115 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1116 cfg80211_cac_event(sdata->dev, &chandef, 1117 NL80211_RADAR_CAC_ABORTED, 1118 GFP_KERNEL); 1119 } 1120 1121 drv_stop_ap(sdata->local, sdata); 1122 1123 /* free all potentially still buffered bcast frames */ 1124 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1125 skb_queue_purge(&sdata->u.ap.ps.bc_buf); 1126 1127 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1128 ieee80211_vif_release_channel(sdata); 1129 1130 return 0; 1131} 1132 1133/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */ 1134struct iapp_layer2_update { 1135 u8 da[ETH_ALEN]; /* broadcast */ 1136 u8 sa[ETH_ALEN]; /* STA addr */ 1137 __be16 len; /* 6 */ 1138 u8 dsap; /* 0 */ 1139 u8 ssap; /* 0 */ 1140 u8 control; 1141 u8 xid_info[3]; 1142} __packed; 1143 1144static void ieee80211_send_layer2_update(struct sta_info *sta) 1145{ 1146 struct iapp_layer2_update *msg; 1147 struct sk_buff *skb; 1148 1149 /* Send Level 2 Update Frame to update forwarding tables in layer 2 1150 * bridge devices */ 1151 1152 skb = dev_alloc_skb(sizeof(*msg)); 1153 if (!skb) 1154 return; 1155 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg)); 1156 1157 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID) 1158 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */ 1159 1160 eth_broadcast_addr(msg->da); 1161 memcpy(msg->sa, sta->sta.addr, ETH_ALEN); 1162 msg->len = htons(6); 1163 msg->dsap = 0; 1164 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */ 1165 msg->control = 0xaf; /* XID response lsb.1111F101. 1166 * F=0 (no poll command; unsolicited frame) */ 1167 msg->xid_info[0] = 0x81; /* XID format identifier */ 1168 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */ 1169 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */ 1170 1171 skb->dev = sta->sdata->dev; 1172 skb->protocol = eth_type_trans(skb, sta->sdata->dev); 1173 memset(skb->cb, 0, sizeof(skb->cb)); 1174 netif_rx_ni(skb); 1175} 1176 1177static int sta_apply_auth_flags(struct ieee80211_local *local, 1178 struct sta_info *sta, 1179 u32 mask, u32 set) 1180{ 1181 int ret; 1182 1183 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1184 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1185 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1186 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1187 if (ret) 1188 return ret; 1189 } 1190 1191 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1192 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1193 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1194 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1195 if (ret) 1196 return ret; 1197 } 1198 1199 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1200 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1201 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1202 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1203 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1204 else 1205 ret = 0; 1206 if (ret) 1207 return ret; 1208 } 1209 1210 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1211 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1212 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1213 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1214 if (ret) 1215 return ret; 1216 } 1217 1218 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1219 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1220 test_sta_flag(sta, WLAN_STA_AUTH)) { 1221 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1222 if (ret) 1223 return ret; 1224 } 1225 1226 return 0; 1227} 1228 1229static int sta_apply_parameters(struct ieee80211_local *local, 1230 struct sta_info *sta, 1231 struct station_parameters *params) 1232{ 1233 int ret = 0; 1234 struct ieee80211_supported_band *sband; 1235 struct ieee80211_sub_if_data *sdata = sta->sdata; 1236 enum ieee80211_band band = ieee80211_get_sdata_band(sdata); 1237 u32 mask, set; 1238 1239 sband = local->hw.wiphy->bands[band]; 1240 1241 mask = params->sta_flags_mask; 1242 set = params->sta_flags_set; 1243 1244 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1245 /* 1246 * In mesh mode, ASSOCIATED isn't part of the nl80211 1247 * API but must follow AUTHENTICATED for driver state. 1248 */ 1249 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1250 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1251 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1252 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1253 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1254 /* 1255 * TDLS -- everything follows authorized, but 1256 * only becoming authorized is possible, not 1257 * going back 1258 */ 1259 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1260 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1261 BIT(NL80211_STA_FLAG_ASSOCIATED); 1262 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1263 BIT(NL80211_STA_FLAG_ASSOCIATED); 1264 } 1265 } 1266 1267 ret = sta_apply_auth_flags(local, sta, mask, set); 1268 if (ret) 1269 return ret; 1270 1271 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1272 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1273 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1274 else 1275 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1276 } 1277 1278 if (mask & BIT(NL80211_STA_FLAG_WME)) { 1279 if (set & BIT(NL80211_STA_FLAG_WME)) { 1280 set_sta_flag(sta, WLAN_STA_WME); 1281 sta->sta.wme = true; 1282 } else { 1283 clear_sta_flag(sta, WLAN_STA_WME); 1284 sta->sta.wme = false; 1285 } 1286 } 1287 1288 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1289 if (set & BIT(NL80211_STA_FLAG_MFP)) 1290 set_sta_flag(sta, WLAN_STA_MFP); 1291 else 1292 clear_sta_flag(sta, WLAN_STA_MFP); 1293 } 1294 1295 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1296 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1297 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1298 else 1299 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1300 } 1301 1302 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1303 sta->sta.uapsd_queues = params->uapsd_queues; 1304 sta->sta.max_sp = params->max_sp; 1305 } 1306 1307 /* 1308 * cfg80211 validates this (1-2007) and allows setting the AID 1309 * only when creating a new station entry 1310 */ 1311 if (params->aid) 1312 sta->sta.aid = params->aid; 1313 1314 /* 1315 * Some of the following updates would be racy if called on an 1316 * existing station, via ieee80211_change_station(). However, 1317 * all such changes are rejected by cfg80211 except for updates 1318 * changing the supported rates on an existing but not yet used 1319 * TDLS peer. 1320 */ 1321 1322 if (params->listen_interval >= 0) 1323 sta->listen_interval = params->listen_interval; 1324 1325 if (params->supported_rates) { 1326 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1327 sband, params->supported_rates, 1328 params->supported_rates_len, 1329 &sta->sta.supp_rates[band]); 1330 } 1331 1332 if (params->ht_capa) 1333 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1334 params->ht_capa, sta); 1335 1336 if (params->vht_capa) 1337 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1338 params->vht_capa, sta); 1339 1340 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1341#ifdef CONFIG_MAC80211_MESH 1342 u32 changed = 0; 1343 1344 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1345 switch (params->plink_state) { 1346 case NL80211_PLINK_ESTAB: 1347 if (sta->plink_state != NL80211_PLINK_ESTAB) 1348 changed = mesh_plink_inc_estab_count( 1349 sdata); 1350 sta->plink_state = params->plink_state; 1351 1352 ieee80211_mps_sta_status_update(sta); 1353 changed |= ieee80211_mps_set_sta_local_pm(sta, 1354 sdata->u.mesh.mshcfg.power_mode); 1355 break; 1356 case NL80211_PLINK_LISTEN: 1357 case NL80211_PLINK_BLOCKED: 1358 case NL80211_PLINK_OPN_SNT: 1359 case NL80211_PLINK_OPN_RCVD: 1360 case NL80211_PLINK_CNF_RCVD: 1361 case NL80211_PLINK_HOLDING: 1362 if (sta->plink_state == NL80211_PLINK_ESTAB) 1363 changed = mesh_plink_dec_estab_count( 1364 sdata); 1365 sta->plink_state = params->plink_state; 1366 1367 ieee80211_mps_sta_status_update(sta); 1368 changed |= ieee80211_mps_set_sta_local_pm(sta, 1369 NL80211_MESH_POWER_UNKNOWN); 1370 break; 1371 default: 1372 /* nothing */ 1373 break; 1374 } 1375 } 1376 1377 switch (params->plink_action) { 1378 case NL80211_PLINK_ACTION_NO_ACTION: 1379 /* nothing */ 1380 break; 1381 case NL80211_PLINK_ACTION_OPEN: 1382 changed |= mesh_plink_open(sta); 1383 break; 1384 case NL80211_PLINK_ACTION_BLOCK: 1385 changed |= mesh_plink_block(sta); 1386 break; 1387 } 1388 1389 if (params->local_pm) 1390 changed |= 1391 ieee80211_mps_set_sta_local_pm(sta, 1392 params->local_pm); 1393 ieee80211_mbss_info_change_notify(sdata, changed); 1394#endif 1395 } 1396 1397 return 0; 1398} 1399 1400static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1401 u8 *mac, struct station_parameters *params) 1402{ 1403 struct ieee80211_local *local = wiphy_priv(wiphy); 1404 struct sta_info *sta; 1405 struct ieee80211_sub_if_data *sdata; 1406 int err; 1407 int layer2_update; 1408 1409 if (params->vlan) { 1410 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1411 1412 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1413 sdata->vif.type != NL80211_IFTYPE_AP) 1414 return -EINVAL; 1415 } else 1416 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1417 1418 if (ether_addr_equal(mac, sdata->vif.addr)) 1419 return -EINVAL; 1420 1421 if (is_multicast_ether_addr(mac)) 1422 return -EINVAL; 1423 1424 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1425 if (!sta) 1426 return -ENOMEM; 1427 1428 /* 1429 * defaults -- if userspace wants something else we'll 1430 * change it accordingly in sta_apply_parameters() 1431 */ 1432 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) { 1433 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH); 1434 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC); 1435 } 1436 1437 err = sta_apply_parameters(local, sta, params); 1438 if (err) { 1439 sta_info_free(local, sta); 1440 return err; 1441 } 1442 1443 /* 1444 * for TDLS, rate control should be initialized only when 1445 * rates are known and station is marked authorized 1446 */ 1447 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) 1448 rate_control_rate_init(sta); 1449 1450 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 1451 sdata->vif.type == NL80211_IFTYPE_AP; 1452 1453 err = sta_info_insert_rcu(sta); 1454 if (err) { 1455 rcu_read_unlock(); 1456 return err; 1457 } 1458 1459 if (layer2_update) 1460 ieee80211_send_layer2_update(sta); 1461 1462 rcu_read_unlock(); 1463 1464 return 0; 1465} 1466 1467static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1468 u8 *mac) 1469{ 1470 struct ieee80211_sub_if_data *sdata; 1471 1472 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1473 1474 if (mac) 1475 return sta_info_destroy_addr_bss(sdata, mac); 1476 1477 sta_info_flush(sdata); 1478 return 0; 1479} 1480 1481static int ieee80211_change_station(struct wiphy *wiphy, 1482 struct net_device *dev, u8 *mac, 1483 struct station_parameters *params) 1484{ 1485 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1486 struct ieee80211_local *local = wiphy_priv(wiphy); 1487 struct sta_info *sta; 1488 struct ieee80211_sub_if_data *vlansdata; 1489 enum cfg80211_station_type statype; 1490 int err; 1491 1492 mutex_lock(&local->sta_mtx); 1493 1494 sta = sta_info_get_bss(sdata, mac); 1495 if (!sta) { 1496 err = -ENOENT; 1497 goto out_err; 1498 } 1499 1500 switch (sdata->vif.type) { 1501 case NL80211_IFTYPE_MESH_POINT: 1502 if (sdata->u.mesh.user_mpm) 1503 statype = CFG80211_STA_MESH_PEER_USER; 1504 else 1505 statype = CFG80211_STA_MESH_PEER_KERNEL; 1506 break; 1507 case NL80211_IFTYPE_ADHOC: 1508 statype = CFG80211_STA_IBSS; 1509 break; 1510 case NL80211_IFTYPE_STATION: 1511 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1512 statype = CFG80211_STA_AP_STA; 1513 break; 1514 } 1515 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1516 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1517 else 1518 statype = CFG80211_STA_TDLS_PEER_SETUP; 1519 break; 1520 case NL80211_IFTYPE_AP: 1521 case NL80211_IFTYPE_AP_VLAN: 1522 statype = CFG80211_STA_AP_CLIENT; 1523 break; 1524 default: 1525 err = -EOPNOTSUPP; 1526 goto out_err; 1527 } 1528 1529 err = cfg80211_check_station_change(wiphy, params, statype); 1530 if (err) 1531 goto out_err; 1532 1533 if (params->vlan && params->vlan != sta->sdata->dev) { 1534 bool prev_4addr = false; 1535 bool new_4addr = false; 1536 1537 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1538 1539 if (params->vlan->ieee80211_ptr->use_4addr) { 1540 if (vlansdata->u.vlan.sta) { 1541 err = -EBUSY; 1542 goto out_err; 1543 } 1544 1545 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1546 new_4addr = true; 1547 } 1548 1549 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1550 sta->sdata->u.vlan.sta) { 1551 rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL); 1552 prev_4addr = true; 1553 } 1554 1555 sta->sdata = vlansdata; 1556 1557 if (sta->sta_state == IEEE80211_STA_AUTHORIZED && 1558 prev_4addr != new_4addr) { 1559 if (new_4addr) 1560 atomic_dec(&sta->sdata->bss->num_mcast_sta); 1561 else 1562 atomic_inc(&sta->sdata->bss->num_mcast_sta); 1563 } 1564 1565 ieee80211_send_layer2_update(sta); 1566 } 1567 1568 err = sta_apply_parameters(local, sta, params); 1569 if (err) 1570 goto out_err; 1571 1572 /* When peer becomes authorized, init rate control as well */ 1573 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1574 test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1575 rate_control_rate_init(sta); 1576 1577 mutex_unlock(&local->sta_mtx); 1578 1579 if ((sdata->vif.type == NL80211_IFTYPE_AP || 1580 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && 1581 sta->known_smps_mode != sta->sdata->bss->req_smps && 1582 test_sta_flag(sta, WLAN_STA_AUTHORIZED) && 1583 sta_info_tx_streams(sta) != 1) { 1584 ht_dbg(sta->sdata, 1585 "%pM just authorized and MIMO capable - update SMPS\n", 1586 sta->sta.addr); 1587 ieee80211_send_smps_action(sta->sdata, 1588 sta->sdata->bss->req_smps, 1589 sta->sta.addr, 1590 sta->sdata->vif.bss_conf.bssid); 1591 } 1592 1593 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1594 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1595 ieee80211_recalc_ps(local, -1); 1596 ieee80211_recalc_ps_vif(sdata); 1597 } 1598 1599 return 0; 1600out_err: 1601 mutex_unlock(&local->sta_mtx); 1602 return err; 1603} 1604 1605#ifdef CONFIG_MAC80211_MESH 1606static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1607 u8 *dst, u8 *next_hop) 1608{ 1609 struct ieee80211_sub_if_data *sdata; 1610 struct mesh_path *mpath; 1611 struct sta_info *sta; 1612 1613 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1614 1615 rcu_read_lock(); 1616 sta = sta_info_get(sdata, next_hop); 1617 if (!sta) { 1618 rcu_read_unlock(); 1619 return -ENOENT; 1620 } 1621 1622 mpath = mesh_path_add(sdata, dst); 1623 if (IS_ERR(mpath)) { 1624 rcu_read_unlock(); 1625 return PTR_ERR(mpath); 1626 } 1627 1628 mesh_path_fix_nexthop(mpath, sta); 1629 1630 rcu_read_unlock(); 1631 return 0; 1632} 1633 1634static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1635 u8 *dst) 1636{ 1637 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1638 1639 if (dst) 1640 return mesh_path_del(sdata, dst); 1641 1642 mesh_path_flush_by_iface(sdata); 1643 return 0; 1644} 1645 1646static int ieee80211_change_mpath(struct wiphy *wiphy, 1647 struct net_device *dev, 1648 u8 *dst, u8 *next_hop) 1649{ 1650 struct ieee80211_sub_if_data *sdata; 1651 struct mesh_path *mpath; 1652 struct sta_info *sta; 1653 1654 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1655 1656 rcu_read_lock(); 1657 1658 sta = sta_info_get(sdata, next_hop); 1659 if (!sta) { 1660 rcu_read_unlock(); 1661 return -ENOENT; 1662 } 1663 1664 mpath = mesh_path_lookup(sdata, dst); 1665 if (!mpath) { 1666 rcu_read_unlock(); 1667 return -ENOENT; 1668 } 1669 1670 mesh_path_fix_nexthop(mpath, sta); 1671 1672 rcu_read_unlock(); 1673 return 0; 1674} 1675 1676static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1677 struct mpath_info *pinfo) 1678{ 1679 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1680 1681 if (next_hop_sta) 1682 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1683 else 1684 memset(next_hop, 0, ETH_ALEN); 1685 1686 memset(pinfo, 0, sizeof(*pinfo)); 1687 1688 pinfo->generation = mesh_paths_generation; 1689 1690 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1691 MPATH_INFO_SN | 1692 MPATH_INFO_METRIC | 1693 MPATH_INFO_EXPTIME | 1694 MPATH_INFO_DISCOVERY_TIMEOUT | 1695 MPATH_INFO_DISCOVERY_RETRIES | 1696 MPATH_INFO_FLAGS; 1697 1698 pinfo->frame_qlen = mpath->frame_queue.qlen; 1699 pinfo->sn = mpath->sn; 1700 pinfo->metric = mpath->metric; 1701 if (time_before(jiffies, mpath->exp_time)) 1702 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1703 pinfo->discovery_timeout = 1704 jiffies_to_msecs(mpath->discovery_timeout); 1705 pinfo->discovery_retries = mpath->discovery_retries; 1706 if (mpath->flags & MESH_PATH_ACTIVE) 1707 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1708 if (mpath->flags & MESH_PATH_RESOLVING) 1709 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1710 if (mpath->flags & MESH_PATH_SN_VALID) 1711 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1712 if (mpath->flags & MESH_PATH_FIXED) 1713 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1714 if (mpath->flags & MESH_PATH_RESOLVED) 1715 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1716} 1717 1718static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1719 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1720 1721{ 1722 struct ieee80211_sub_if_data *sdata; 1723 struct mesh_path *mpath; 1724 1725 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1726 1727 rcu_read_lock(); 1728 mpath = mesh_path_lookup(sdata, dst); 1729 if (!mpath) { 1730 rcu_read_unlock(); 1731 return -ENOENT; 1732 } 1733 memcpy(dst, mpath->dst, ETH_ALEN); 1734 mpath_set_pinfo(mpath, next_hop, pinfo); 1735 rcu_read_unlock(); 1736 return 0; 1737} 1738 1739static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1740 int idx, u8 *dst, u8 *next_hop, 1741 struct mpath_info *pinfo) 1742{ 1743 struct ieee80211_sub_if_data *sdata; 1744 struct mesh_path *mpath; 1745 1746 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1747 1748 rcu_read_lock(); 1749 mpath = mesh_path_lookup_by_idx(sdata, idx); 1750 if (!mpath) { 1751 rcu_read_unlock(); 1752 return -ENOENT; 1753 } 1754 memcpy(dst, mpath->dst, ETH_ALEN); 1755 mpath_set_pinfo(mpath, next_hop, pinfo); 1756 rcu_read_unlock(); 1757 return 0; 1758} 1759 1760static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1761 struct net_device *dev, 1762 struct mesh_config *conf) 1763{ 1764 struct ieee80211_sub_if_data *sdata; 1765 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1766 1767 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1768 return 0; 1769} 1770 1771static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1772{ 1773 return (mask >> (parm-1)) & 0x1; 1774} 1775 1776static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1777 const struct mesh_setup *setup) 1778{ 1779 u8 *new_ie; 1780 const u8 *old_ie; 1781 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1782 struct ieee80211_sub_if_data, u.mesh); 1783 1784 /* allocate information elements */ 1785 new_ie = NULL; 1786 old_ie = ifmsh->ie; 1787 1788 if (setup->ie_len) { 1789 new_ie = kmemdup(setup->ie, setup->ie_len, 1790 GFP_KERNEL); 1791 if (!new_ie) 1792 return -ENOMEM; 1793 } 1794 ifmsh->ie_len = setup->ie_len; 1795 ifmsh->ie = new_ie; 1796 kfree(old_ie); 1797 1798 /* now copy the rest of the setup parameters */ 1799 ifmsh->mesh_id_len = setup->mesh_id_len; 1800 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1801 ifmsh->mesh_sp_id = setup->sync_method; 1802 ifmsh->mesh_pp_id = setup->path_sel_proto; 1803 ifmsh->mesh_pm_id = setup->path_metric; 1804 ifmsh->user_mpm = setup->user_mpm; 1805 ifmsh->mesh_auth_id = setup->auth_id; 1806 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1807 if (setup->is_authenticated) 1808 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1809 if (setup->is_secure) 1810 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1811 1812 /* mcast rate setting in Mesh Node */ 1813 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1814 sizeof(setup->mcast_rate)); 1815 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1816 1817 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1818 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1819 1820 return 0; 1821} 1822 1823static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1824 struct net_device *dev, u32 mask, 1825 const struct mesh_config *nconf) 1826{ 1827 struct mesh_config *conf; 1828 struct ieee80211_sub_if_data *sdata; 1829 struct ieee80211_if_mesh *ifmsh; 1830 1831 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1832 ifmsh = &sdata->u.mesh; 1833 1834 /* Set the config options which we are interested in setting */ 1835 conf = &(sdata->u.mesh.mshcfg); 1836 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 1837 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 1838 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 1839 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 1840 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 1841 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 1842 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 1843 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 1844 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 1845 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 1846 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 1847 conf->dot11MeshTTL = nconf->dot11MeshTTL; 1848 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 1849 conf->element_ttl = nconf->element_ttl; 1850 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 1851 if (ifmsh->user_mpm) 1852 return -EBUSY; 1853 conf->auto_open_plinks = nconf->auto_open_plinks; 1854 } 1855 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 1856 conf->dot11MeshNbrOffsetMaxNeighbor = 1857 nconf->dot11MeshNbrOffsetMaxNeighbor; 1858 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 1859 conf->dot11MeshHWMPmaxPREQretries = 1860 nconf->dot11MeshHWMPmaxPREQretries; 1861 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 1862 conf->path_refresh_time = nconf->path_refresh_time; 1863 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 1864 conf->min_discovery_timeout = nconf->min_discovery_timeout; 1865 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 1866 conf->dot11MeshHWMPactivePathTimeout = 1867 nconf->dot11MeshHWMPactivePathTimeout; 1868 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 1869 conf->dot11MeshHWMPpreqMinInterval = 1870 nconf->dot11MeshHWMPpreqMinInterval; 1871 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 1872 conf->dot11MeshHWMPperrMinInterval = 1873 nconf->dot11MeshHWMPperrMinInterval; 1874 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 1875 mask)) 1876 conf->dot11MeshHWMPnetDiameterTraversalTime = 1877 nconf->dot11MeshHWMPnetDiameterTraversalTime; 1878 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 1879 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 1880 ieee80211_mesh_root_setup(ifmsh); 1881 } 1882 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 1883 /* our current gate announcement implementation rides on root 1884 * announcements, so require this ifmsh to also be a root node 1885 * */ 1886 if (nconf->dot11MeshGateAnnouncementProtocol && 1887 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 1888 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 1889 ieee80211_mesh_root_setup(ifmsh); 1890 } 1891 conf->dot11MeshGateAnnouncementProtocol = 1892 nconf->dot11MeshGateAnnouncementProtocol; 1893 } 1894 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 1895 conf->dot11MeshHWMPRannInterval = 1896 nconf->dot11MeshHWMPRannInterval; 1897 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 1898 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 1899 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 1900 /* our RSSI threshold implementation is supported only for 1901 * devices that report signal in dBm. 1902 */ 1903 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM)) 1904 return -ENOTSUPP; 1905 conf->rssi_threshold = nconf->rssi_threshold; 1906 } 1907 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 1908 conf->ht_opmode = nconf->ht_opmode; 1909 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 1910 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 1911 } 1912 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 1913 conf->dot11MeshHWMPactivePathToRootTimeout = 1914 nconf->dot11MeshHWMPactivePathToRootTimeout; 1915 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 1916 conf->dot11MeshHWMProotInterval = 1917 nconf->dot11MeshHWMProotInterval; 1918 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 1919 conf->dot11MeshHWMPconfirmationInterval = 1920 nconf->dot11MeshHWMPconfirmationInterval; 1921 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 1922 conf->power_mode = nconf->power_mode; 1923 ieee80211_mps_local_status_update(sdata); 1924 } 1925 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 1926 conf->dot11MeshAwakeWindowDuration = 1927 nconf->dot11MeshAwakeWindowDuration; 1928 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 1929 conf->plink_timeout = nconf->plink_timeout; 1930 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 1931 return 0; 1932} 1933 1934static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 1935 const struct mesh_config *conf, 1936 const struct mesh_setup *setup) 1937{ 1938 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1939 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 1940 int err; 1941 1942 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 1943 err = copy_mesh_setup(ifmsh, setup); 1944 if (err) 1945 return err; 1946 1947 /* can mesh use other SMPS modes? */ 1948 sdata->smps_mode = IEEE80211_SMPS_OFF; 1949 sdata->needed_rx_chains = sdata->local->rx_chains; 1950 1951 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 1952 IEEE80211_CHANCTX_SHARED); 1953 if (err) 1954 return err; 1955 1956 return ieee80211_start_mesh(sdata); 1957} 1958 1959static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 1960{ 1961 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1962 1963 ieee80211_stop_mesh(sdata); 1964 ieee80211_vif_release_channel(sdata); 1965 1966 return 0; 1967} 1968#endif 1969 1970static int ieee80211_change_bss(struct wiphy *wiphy, 1971 struct net_device *dev, 1972 struct bss_parameters *params) 1973{ 1974 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1975 enum ieee80211_band band; 1976 u32 changed = 0; 1977 1978 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 1979 return -ENOENT; 1980 1981 band = ieee80211_get_sdata_band(sdata); 1982 1983 if (params->use_cts_prot >= 0) { 1984 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 1985 changed |= BSS_CHANGED_ERP_CTS_PROT; 1986 } 1987 if (params->use_short_preamble >= 0) { 1988 sdata->vif.bss_conf.use_short_preamble = 1989 params->use_short_preamble; 1990 changed |= BSS_CHANGED_ERP_PREAMBLE; 1991 } 1992 1993 if (!sdata->vif.bss_conf.use_short_slot && 1994 band == IEEE80211_BAND_5GHZ) { 1995 sdata->vif.bss_conf.use_short_slot = true; 1996 changed |= BSS_CHANGED_ERP_SLOT; 1997 } 1998 1999 if (params->use_short_slot_time >= 0) { 2000 sdata->vif.bss_conf.use_short_slot = 2001 params->use_short_slot_time; 2002 changed |= BSS_CHANGED_ERP_SLOT; 2003 } 2004 2005 if (params->basic_rates) { 2006 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2007 wiphy->bands[band], 2008 params->basic_rates, 2009 params->basic_rates_len, 2010 &sdata->vif.bss_conf.basic_rates); 2011 changed |= BSS_CHANGED_BASIC_RATES; 2012 } 2013 2014 if (params->ap_isolate >= 0) { 2015 if (params->ap_isolate) 2016 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2017 else 2018 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2019 } 2020 2021 if (params->ht_opmode >= 0) { 2022 sdata->vif.bss_conf.ht_operation_mode = 2023 (u16) params->ht_opmode; 2024 changed |= BSS_CHANGED_HT; 2025 } 2026 2027 if (params->p2p_ctwindow >= 0) { 2028 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2029 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2030 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2031 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2032 changed |= BSS_CHANGED_P2P_PS; 2033 } 2034 2035 if (params->p2p_opp_ps > 0) { 2036 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2037 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2038 changed |= BSS_CHANGED_P2P_PS; 2039 } else if (params->p2p_opp_ps == 0) { 2040 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2041 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2042 changed |= BSS_CHANGED_P2P_PS; 2043 } 2044 2045 ieee80211_bss_info_change_notify(sdata, changed); 2046 2047 return 0; 2048} 2049 2050static int ieee80211_set_txq_params(struct wiphy *wiphy, 2051 struct net_device *dev, 2052 struct ieee80211_txq_params *params) 2053{ 2054 struct ieee80211_local *local = wiphy_priv(wiphy); 2055 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2056 struct ieee80211_tx_queue_params p; 2057 2058 if (!local->ops->conf_tx) 2059 return -EOPNOTSUPP; 2060 2061 if (local->hw.queues < IEEE80211_NUM_ACS) 2062 return -EOPNOTSUPP; 2063 2064 memset(&p, 0, sizeof(p)); 2065 p.aifs = params->aifs; 2066 p.cw_max = params->cwmax; 2067 p.cw_min = params->cwmin; 2068 p.txop = params->txop; 2069 2070 /* 2071 * Setting tx queue params disables u-apsd because it's only 2072 * called in master mode. 2073 */ 2074 p.uapsd = false; 2075 2076 sdata->tx_conf[params->ac] = p; 2077 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2078 wiphy_debug(local->hw.wiphy, 2079 "failed to set TX queue parameters for AC %d\n", 2080 params->ac); 2081 return -EINVAL; 2082 } 2083 2084 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2085 2086 return 0; 2087} 2088 2089#ifdef CONFIG_PM 2090static int ieee80211_suspend(struct wiphy *wiphy, 2091 struct cfg80211_wowlan *wowlan) 2092{ 2093 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2094} 2095 2096static int ieee80211_resume(struct wiphy *wiphy) 2097{ 2098 return __ieee80211_resume(wiphy_priv(wiphy)); 2099} 2100#else 2101#define ieee80211_suspend NULL 2102#define ieee80211_resume NULL 2103#endif 2104 2105static int ieee80211_scan(struct wiphy *wiphy, 2106 struct cfg80211_scan_request *req) 2107{ 2108 struct ieee80211_sub_if_data *sdata; 2109 2110 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2111 2112 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2113 case NL80211_IFTYPE_STATION: 2114 case NL80211_IFTYPE_ADHOC: 2115 case NL80211_IFTYPE_MESH_POINT: 2116 case NL80211_IFTYPE_P2P_CLIENT: 2117 case NL80211_IFTYPE_P2P_DEVICE: 2118 break; 2119 case NL80211_IFTYPE_P2P_GO: 2120 if (sdata->local->ops->hw_scan) 2121 break; 2122 /* 2123 * FIXME: implement NoA while scanning in software, 2124 * for now fall through to allow scanning only when 2125 * beaconing hasn't been configured yet 2126 */ 2127 case NL80211_IFTYPE_AP: 2128 /* 2129 * If the scan has been forced (and the driver supports 2130 * forcing), don't care about being beaconing already. 2131 * This will create problems to the attached stations (e.g. all 2132 * the frames sent while scanning on other channel will be 2133 * lost) 2134 */ 2135 if (sdata->u.ap.beacon && 2136 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2137 !(req->flags & NL80211_SCAN_FLAG_AP))) 2138 return -EOPNOTSUPP; 2139 break; 2140 default: 2141 return -EOPNOTSUPP; 2142 } 2143 2144 return ieee80211_request_scan(sdata, req); 2145} 2146 2147static int 2148ieee80211_sched_scan_start(struct wiphy *wiphy, 2149 struct net_device *dev, 2150 struct cfg80211_sched_scan_request *req) 2151{ 2152 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2153 2154 if (!sdata->local->ops->sched_scan_start) 2155 return -EOPNOTSUPP; 2156 2157 return ieee80211_request_sched_scan_start(sdata, req); 2158} 2159 2160static int 2161ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev) 2162{ 2163 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2164 2165 if (!sdata->local->ops->sched_scan_stop) 2166 return -EOPNOTSUPP; 2167 2168 return ieee80211_request_sched_scan_stop(sdata); 2169} 2170 2171static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2172 struct cfg80211_auth_request *req) 2173{ 2174 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2175} 2176 2177static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2178 struct cfg80211_assoc_request *req) 2179{ 2180 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2181} 2182 2183static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2184 struct cfg80211_deauth_request *req) 2185{ 2186 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2187} 2188 2189static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2190 struct cfg80211_disassoc_request *req) 2191{ 2192 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2193} 2194 2195static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2196 struct cfg80211_ibss_params *params) 2197{ 2198 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2199} 2200 2201static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2202{ 2203 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2204} 2205 2206static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2207 int rate[IEEE80211_NUM_BANDS]) 2208{ 2209 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2210 2211 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2212 sizeof(int) * IEEE80211_NUM_BANDS); 2213 2214 return 0; 2215} 2216 2217static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2218{ 2219 struct ieee80211_local *local = wiphy_priv(wiphy); 2220 int err; 2221 2222 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2223 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2224 2225 if (err) 2226 return err; 2227 } 2228 2229 if (changed & WIPHY_PARAM_COVERAGE_CLASS) { 2230 err = drv_set_coverage_class(local, wiphy->coverage_class); 2231 2232 if (err) 2233 return err; 2234 } 2235 2236 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2237 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2238 2239 if (err) 2240 return err; 2241 } 2242 2243 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2244 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2245 return -EINVAL; 2246 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2247 } 2248 if (changed & WIPHY_PARAM_RETRY_LONG) { 2249 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2250 return -EINVAL; 2251 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2252 } 2253 if (changed & 2254 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2255 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2256 2257 return 0; 2258} 2259 2260static int ieee80211_set_tx_power(struct wiphy *wiphy, 2261 struct wireless_dev *wdev, 2262 enum nl80211_tx_power_setting type, int mbm) 2263{ 2264 struct ieee80211_local *local = wiphy_priv(wiphy); 2265 struct ieee80211_sub_if_data *sdata; 2266 2267 if (wdev) { 2268 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2269 2270 switch (type) { 2271 case NL80211_TX_POWER_AUTOMATIC: 2272 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2273 break; 2274 case NL80211_TX_POWER_LIMITED: 2275 case NL80211_TX_POWER_FIXED: 2276 if (mbm < 0 || (mbm % 100)) 2277 return -EOPNOTSUPP; 2278 sdata->user_power_level = MBM_TO_DBM(mbm); 2279 break; 2280 } 2281 2282 ieee80211_recalc_txpower(sdata); 2283 2284 return 0; 2285 } 2286 2287 switch (type) { 2288 case NL80211_TX_POWER_AUTOMATIC: 2289 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2290 break; 2291 case NL80211_TX_POWER_LIMITED: 2292 case NL80211_TX_POWER_FIXED: 2293 if (mbm < 0 || (mbm % 100)) 2294 return -EOPNOTSUPP; 2295 local->user_power_level = MBM_TO_DBM(mbm); 2296 break; 2297 } 2298 2299 mutex_lock(&local->iflist_mtx); 2300 list_for_each_entry(sdata, &local->interfaces, list) 2301 sdata->user_power_level = local->user_power_level; 2302 list_for_each_entry(sdata, &local->interfaces, list) 2303 ieee80211_recalc_txpower(sdata); 2304 mutex_unlock(&local->iflist_mtx); 2305 2306 return 0; 2307} 2308 2309static int ieee80211_get_tx_power(struct wiphy *wiphy, 2310 struct wireless_dev *wdev, 2311 int *dbm) 2312{ 2313 struct ieee80211_local *local = wiphy_priv(wiphy); 2314 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2315 2316 if (!local->use_chanctx) 2317 *dbm = local->hw.conf.power_level; 2318 else 2319 *dbm = sdata->vif.bss_conf.txpower; 2320 2321 return 0; 2322} 2323 2324static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2325 const u8 *addr) 2326{ 2327 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2328 2329 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2330 2331 return 0; 2332} 2333 2334static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2335{ 2336 struct ieee80211_local *local = wiphy_priv(wiphy); 2337 2338 drv_rfkill_poll(local); 2339} 2340 2341#ifdef CONFIG_NL80211_TESTMODE 2342static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2343 struct wireless_dev *wdev, 2344 void *data, int len) 2345{ 2346 struct ieee80211_local *local = wiphy_priv(wiphy); 2347 struct ieee80211_vif *vif = NULL; 2348 2349 if (!local->ops->testmode_cmd) 2350 return -EOPNOTSUPP; 2351 2352 if (wdev) { 2353 struct ieee80211_sub_if_data *sdata; 2354 2355 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2356 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2357 vif = &sdata->vif; 2358 } 2359 2360 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2361} 2362 2363static int ieee80211_testmode_dump(struct wiphy *wiphy, 2364 struct sk_buff *skb, 2365 struct netlink_callback *cb, 2366 void *data, int len) 2367{ 2368 struct ieee80211_local *local = wiphy_priv(wiphy); 2369 2370 if (!local->ops->testmode_dump) 2371 return -EOPNOTSUPP; 2372 2373 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2374} 2375#endif 2376 2377int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, 2378 enum ieee80211_smps_mode smps_mode) 2379{ 2380 struct sta_info *sta; 2381 enum ieee80211_smps_mode old_req; 2382 int i; 2383 2384 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) 2385 return -EINVAL; 2386 2387 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2388 return 0; 2389 2390 old_req = sdata->u.ap.req_smps; 2391 sdata->u.ap.req_smps = smps_mode; 2392 2393 /* AUTOMATIC doesn't mean much for AP - don't allow it */ 2394 if (old_req == smps_mode || 2395 smps_mode == IEEE80211_SMPS_AUTOMATIC) 2396 return 0; 2397 2398 /* If no associated stations, there's no need to do anything */ 2399 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) { 2400 sdata->smps_mode = smps_mode; 2401 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2402 return 0; 2403 } 2404 2405 ht_dbg(sdata, 2406 "SMSP %d requested in AP mode, sending Action frame to %d stations\n", 2407 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); 2408 2409 mutex_lock(&sdata->local->sta_mtx); 2410 for (i = 0; i < STA_HASH_SIZE; i++) { 2411 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i], 2412 lockdep_is_held(&sdata->local->sta_mtx)); 2413 sta; 2414 sta = rcu_dereference_protected(sta->hnext, 2415 lockdep_is_held(&sdata->local->sta_mtx))) { 2416 /* 2417 * Only stations associated to our AP and 2418 * associated VLANs 2419 */ 2420 if (sta->sdata->bss != &sdata->u.ap) 2421 continue; 2422 2423 /* This station doesn't support MIMO - skip it */ 2424 if (sta_info_tx_streams(sta) == 1) 2425 continue; 2426 2427 /* 2428 * Don't wake up a STA just to send the action frame 2429 * unless we are getting more restrictive. 2430 */ 2431 if (test_sta_flag(sta, WLAN_STA_PS_STA) && 2432 !ieee80211_smps_is_restrictive(sta->known_smps_mode, 2433 smps_mode)) { 2434 ht_dbg(sdata, 2435 "Won't send SMPS to sleeping STA %pM\n", 2436 sta->sta.addr); 2437 continue; 2438 } 2439 2440 /* 2441 * If the STA is not authorized, wait until it gets 2442 * authorized and the action frame will be sent then. 2443 */ 2444 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2445 continue; 2446 2447 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); 2448 ieee80211_send_smps_action(sdata, smps_mode, 2449 sta->sta.addr, 2450 sdata->vif.bss_conf.bssid); 2451 } 2452 } 2453 mutex_unlock(&sdata->local->sta_mtx); 2454 2455 sdata->smps_mode = smps_mode; 2456 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2457 2458 return 0; 2459} 2460 2461int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2462 enum ieee80211_smps_mode smps_mode) 2463{ 2464 const u8 *ap; 2465 enum ieee80211_smps_mode old_req; 2466 int err; 2467 2468 lockdep_assert_held(&sdata->wdev.mtx); 2469 2470 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2471 return -EINVAL; 2472 2473 old_req = sdata->u.mgd.req_smps; 2474 sdata->u.mgd.req_smps = smps_mode; 2475 2476 if (old_req == smps_mode && 2477 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2478 return 0; 2479 2480 /* 2481 * If not associated, or current association is not an HT 2482 * association, there's no need to do anything, just store 2483 * the new value until we associate. 2484 */ 2485 if (!sdata->u.mgd.associated || 2486 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2487 return 0; 2488 2489 ap = sdata->u.mgd.associated->bssid; 2490 2491 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2492 if (sdata->u.mgd.powersave) 2493 smps_mode = IEEE80211_SMPS_DYNAMIC; 2494 else 2495 smps_mode = IEEE80211_SMPS_OFF; 2496 } 2497 2498 /* send SM PS frame to AP */ 2499 err = ieee80211_send_smps_action(sdata, smps_mode, 2500 ap, ap); 2501 if (err) 2502 sdata->u.mgd.req_smps = old_req; 2503 2504 return err; 2505} 2506 2507static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2508 bool enabled, int timeout) 2509{ 2510 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2511 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2512 2513 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2514 return -EOPNOTSUPP; 2515 2516 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS)) 2517 return -EOPNOTSUPP; 2518 2519 if (enabled == sdata->u.mgd.powersave && 2520 timeout == local->dynamic_ps_forced_timeout) 2521 return 0; 2522 2523 sdata->u.mgd.powersave = enabled; 2524 local->dynamic_ps_forced_timeout = timeout; 2525 2526 /* no change, but if automatic follow powersave */ 2527 sdata_lock(sdata); 2528 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2529 sdata_unlock(sdata); 2530 2531 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS) 2532 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2533 2534 ieee80211_recalc_ps(local, -1); 2535 ieee80211_recalc_ps_vif(sdata); 2536 2537 return 0; 2538} 2539 2540static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2541 struct net_device *dev, 2542 s32 rssi_thold, u32 rssi_hyst) 2543{ 2544 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2545 struct ieee80211_vif *vif = &sdata->vif; 2546 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2547 2548 if (rssi_thold == bss_conf->cqm_rssi_thold && 2549 rssi_hyst == bss_conf->cqm_rssi_hyst) 2550 return 0; 2551 2552 bss_conf->cqm_rssi_thold = rssi_thold; 2553 bss_conf->cqm_rssi_hyst = rssi_hyst; 2554 2555 /* tell the driver upon association, unless already associated */ 2556 if (sdata->u.mgd.associated && 2557 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2558 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2559 2560 return 0; 2561} 2562 2563static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2564 struct net_device *dev, 2565 const u8 *addr, 2566 const struct cfg80211_bitrate_mask *mask) 2567{ 2568 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2569 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2570 int i, ret; 2571 2572 if (!ieee80211_sdata_running(sdata)) 2573 return -ENETDOWN; 2574 2575 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) { 2576 ret = drv_set_bitrate_mask(local, sdata, mask); 2577 if (ret) 2578 return ret; 2579 } 2580 2581 for (i = 0; i < IEEE80211_NUM_BANDS; i++) { 2582 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2583 int j; 2584 2585 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2586 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2587 sizeof(mask->control[i].ht_mcs)); 2588 2589 sdata->rc_has_mcs_mask[i] = false; 2590 if (!sband) 2591 continue; 2592 2593 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) 2594 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2595 sdata->rc_has_mcs_mask[i] = true; 2596 break; 2597 } 2598 } 2599 2600 return 0; 2601} 2602 2603static int ieee80211_start_roc_work(struct ieee80211_local *local, 2604 struct ieee80211_sub_if_data *sdata, 2605 struct ieee80211_channel *channel, 2606 unsigned int duration, u64 *cookie, 2607 struct sk_buff *txskb, 2608 enum ieee80211_roc_type type) 2609{ 2610 struct ieee80211_roc_work *roc, *tmp; 2611 bool queued = false; 2612 int ret; 2613 2614 lockdep_assert_held(&local->mtx); 2615 2616 if (local->use_chanctx && !local->ops->remain_on_channel) 2617 return -EOPNOTSUPP; 2618 2619 roc = kzalloc(sizeof(*roc), GFP_KERNEL); 2620 if (!roc) 2621 return -ENOMEM; 2622 2623 roc->chan = channel; 2624 roc->duration = duration; 2625 roc->req_duration = duration; 2626 roc->frame = txskb; 2627 roc->type = type; 2628 roc->mgmt_tx_cookie = (unsigned long)txskb; 2629 roc->sdata = sdata; 2630 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work); 2631 INIT_LIST_HEAD(&roc->dependents); 2632 2633 /* if there's one pending or we're scanning, queue this one */ 2634 if (!list_empty(&local->roc_list) || 2635 local->scanning || local->radar_detect_enabled) 2636 goto out_check_combine; 2637 2638 /* if not HW assist, just queue & schedule work */ 2639 if (!local->ops->remain_on_channel) { 2640 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0); 2641 goto out_queue; 2642 } 2643 2644 /* otherwise actually kick it off here (for error handling) */ 2645 2646 /* 2647 * If the duration is zero, then the driver 2648 * wouldn't actually do anything. Set it to 2649 * 10 for now. 2650 * 2651 * TODO: cancel the off-channel operation 2652 * when we get the SKB's TX status and 2653 * the wait time was zero before. 2654 */ 2655 if (!duration) 2656 duration = 10; 2657 2658 ret = drv_remain_on_channel(local, sdata, channel, duration, type); 2659 if (ret) { 2660 kfree(roc); 2661 return ret; 2662 } 2663 2664 roc->started = true; 2665 goto out_queue; 2666 2667 out_check_combine: 2668 list_for_each_entry(tmp, &local->roc_list, list) { 2669 if (tmp->chan != channel || tmp->sdata != sdata) 2670 continue; 2671 2672 /* 2673 * Extend this ROC if possible: 2674 * 2675 * If it hasn't started yet, just increase the duration 2676 * and add the new one to the list of dependents. 2677 * If the type of the new ROC has higher priority, modify the 2678 * type of the previous one to match that of the new one. 2679 */ 2680 if (!tmp->started) { 2681 list_add_tail(&roc->list, &tmp->dependents); 2682 tmp->duration = max(tmp->duration, roc->duration); 2683 tmp->type = max(tmp->type, roc->type); 2684 queued = true; 2685 break; 2686 } 2687 2688 /* If it has already started, it's more difficult ... */ 2689 if (local->ops->remain_on_channel) { 2690 unsigned long j = jiffies; 2691 2692 /* 2693 * In the offloaded ROC case, if it hasn't begun, add 2694 * this new one to the dependent list to be handled 2695 * when the master one begins. If it has begun, 2696 * check that there's still a minimum time left and 2697 * if so, start this one, transmitting the frame, but 2698 * add it to the list directly after this one with 2699 * a reduced time so we'll ask the driver to execute 2700 * it right after finishing the previous one, in the 2701 * hope that it'll also be executed right afterwards, 2702 * effectively extending the old one. 2703 * If there's no minimum time left, just add it to the 2704 * normal list. 2705 * TODO: the ROC type is ignored here, assuming that it 2706 * is better to immediately use the current ROC. 2707 */ 2708 if (!tmp->hw_begun) { 2709 list_add_tail(&roc->list, &tmp->dependents); 2710 queued = true; 2711 break; 2712 } 2713 2714 if (time_before(j + IEEE80211_ROC_MIN_LEFT, 2715 tmp->hw_start_time + 2716 msecs_to_jiffies(tmp->duration))) { 2717 int new_dur; 2718 2719 ieee80211_handle_roc_started(roc); 2720 2721 new_dur = roc->duration - 2722 jiffies_to_msecs(tmp->hw_start_time + 2723 msecs_to_jiffies( 2724 tmp->duration) - 2725 j); 2726 2727 if (new_dur > 0) { 2728 /* add right after tmp */ 2729 list_add(&roc->list, &tmp->list); 2730 } else { 2731 list_add_tail(&roc->list, 2732 &tmp->dependents); 2733 } 2734 queued = true; 2735 } 2736 } else if (del_timer_sync(&tmp->work.timer)) { 2737 unsigned long new_end; 2738 2739 /* 2740 * In the software ROC case, cancel the timer, if 2741 * that fails then the finish work is already 2742 * queued/pending and thus we queue the new ROC 2743 * normally, if that succeeds then we can extend 2744 * the timer duration and TX the frame (if any.) 2745 */ 2746 2747 list_add_tail(&roc->list, &tmp->dependents); 2748 queued = true; 2749 2750 new_end = jiffies + msecs_to_jiffies(roc->duration); 2751 2752 /* ok, it was started & we canceled timer */ 2753 if (time_after(new_end, tmp->work.timer.expires)) 2754 mod_timer(&tmp->work.timer, new_end); 2755 else 2756 add_timer(&tmp->work.timer); 2757 2758 ieee80211_handle_roc_started(roc); 2759 } 2760 break; 2761 } 2762 2763 out_queue: 2764 if (!queued) 2765 list_add_tail(&roc->list, &local->roc_list); 2766 2767 /* 2768 * cookie is either the roc cookie (for normal roc) 2769 * or the SKB (for mgmt TX) 2770 */ 2771 if (!txskb) { 2772 /* local->mtx protects this */ 2773 local->roc_cookie_counter++; 2774 roc->cookie = local->roc_cookie_counter; 2775 /* wow, you wrapped 64 bits ... more likely a bug */ 2776 if (WARN_ON(roc->cookie == 0)) { 2777 roc->cookie = 1; 2778 local->roc_cookie_counter++; 2779 } 2780 *cookie = roc->cookie; 2781 } else { 2782 *cookie = (unsigned long)txskb; 2783 } 2784 2785 return 0; 2786} 2787 2788static int ieee80211_remain_on_channel(struct wiphy *wiphy, 2789 struct wireless_dev *wdev, 2790 struct ieee80211_channel *chan, 2791 unsigned int duration, 2792 u64 *cookie) 2793{ 2794 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2795 struct ieee80211_local *local = sdata->local; 2796 int ret; 2797 2798 mutex_lock(&local->mtx); 2799 ret = ieee80211_start_roc_work(local, sdata, chan, 2800 duration, cookie, NULL, 2801 IEEE80211_ROC_TYPE_NORMAL); 2802 mutex_unlock(&local->mtx); 2803 2804 return ret; 2805} 2806 2807static int ieee80211_cancel_roc(struct ieee80211_local *local, 2808 u64 cookie, bool mgmt_tx) 2809{ 2810 struct ieee80211_roc_work *roc, *tmp, *found = NULL; 2811 int ret; 2812 2813 mutex_lock(&local->mtx); 2814 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) { 2815 struct ieee80211_roc_work *dep, *tmp2; 2816 2817 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) { 2818 if (!mgmt_tx && dep->cookie != cookie) 2819 continue; 2820 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie) 2821 continue; 2822 /* found dependent item -- just remove it */ 2823 list_del(&dep->list); 2824 mutex_unlock(&local->mtx); 2825 2826 ieee80211_roc_notify_destroy(dep, true); 2827 return 0; 2828 } 2829 2830 if (!mgmt_tx && roc->cookie != cookie) 2831 continue; 2832 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie) 2833 continue; 2834 2835 found = roc; 2836 break; 2837 } 2838 2839 if (!found) { 2840 mutex_unlock(&local->mtx); 2841 return -ENOENT; 2842 } 2843 2844 /* 2845 * We found the item to cancel, so do that. Note that it 2846 * may have dependents, which we also cancel (and send 2847 * the expired signal for.) Not doing so would be quite 2848 * tricky here, but we may need to fix it later. 2849 */ 2850 2851 if (local->ops->remain_on_channel) { 2852 if (found->started) { 2853 ret = drv_cancel_remain_on_channel(local); 2854 if (WARN_ON_ONCE(ret)) { 2855 mutex_unlock(&local->mtx); 2856 return ret; 2857 } 2858 } 2859 2860 list_del(&found->list); 2861 2862 if (found->started) 2863 ieee80211_start_next_roc(local); 2864 mutex_unlock(&local->mtx); 2865 2866 ieee80211_roc_notify_destroy(found, true); 2867 } else { 2868 /* work may be pending so use it all the time */ 2869 found->abort = true; 2870 ieee80211_queue_delayed_work(&local->hw, &found->work, 0); 2871 2872 mutex_unlock(&local->mtx); 2873 2874 /* work will clean up etc */ 2875 flush_delayed_work(&found->work); 2876 WARN_ON(!found->to_be_freed); 2877 kfree(found); 2878 } 2879 2880 return 0; 2881} 2882 2883static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, 2884 struct wireless_dev *wdev, 2885 u64 cookie) 2886{ 2887 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2888 struct ieee80211_local *local = sdata->local; 2889 2890 return ieee80211_cancel_roc(local, cookie, false); 2891} 2892 2893static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2894 struct net_device *dev, 2895 struct cfg80211_chan_def *chandef) 2896{ 2897 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2898 struct ieee80211_local *local = sdata->local; 2899 unsigned long timeout; 2900 int err; 2901 2902 if (!list_empty(&local->roc_list) || local->scanning) 2903 return -EBUSY; 2904 2905 /* whatever, but channel contexts should not complain about that one */ 2906 sdata->smps_mode = IEEE80211_SMPS_OFF; 2907 sdata->needed_rx_chains = local->rx_chains; 2908 sdata->radar_required = true; 2909 2910 mutex_lock(&local->iflist_mtx); 2911 err = ieee80211_vif_use_channel(sdata, chandef, 2912 IEEE80211_CHANCTX_SHARED); 2913 mutex_unlock(&local->iflist_mtx); 2914 if (err) 2915 return err; 2916 2917 timeout = msecs_to_jiffies(IEEE80211_DFS_MIN_CAC_TIME_MS); 2918 ieee80211_queue_delayed_work(&sdata->local->hw, 2919 &sdata->dfs_cac_timer_work, timeout); 2920 2921 return 0; 2922} 2923 2924static struct cfg80211_beacon_data * 2925cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2926{ 2927 struct cfg80211_beacon_data *new_beacon; 2928 u8 *pos; 2929 int len; 2930 2931 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2932 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2933 beacon->probe_resp_len; 2934 2935 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2936 if (!new_beacon) 2937 return NULL; 2938 2939 pos = (u8 *)(new_beacon + 1); 2940 if (beacon->head_len) { 2941 new_beacon->head_len = beacon->head_len; 2942 new_beacon->head = pos; 2943 memcpy(pos, beacon->head, beacon->head_len); 2944 pos += beacon->head_len; 2945 } 2946 if (beacon->tail_len) { 2947 new_beacon->tail_len = beacon->tail_len; 2948 new_beacon->tail = pos; 2949 memcpy(pos, beacon->tail, beacon->tail_len); 2950 pos += beacon->tail_len; 2951 } 2952 if (beacon->beacon_ies_len) { 2953 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2954 new_beacon->beacon_ies = pos; 2955 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2956 pos += beacon->beacon_ies_len; 2957 } 2958 if (beacon->proberesp_ies_len) { 2959 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2960 new_beacon->proberesp_ies = pos; 2961 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2962 pos += beacon->proberesp_ies_len; 2963 } 2964 if (beacon->assocresp_ies_len) { 2965 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2966 new_beacon->assocresp_ies = pos; 2967 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2968 pos += beacon->assocresp_ies_len; 2969 } 2970 if (beacon->probe_resp_len) { 2971 new_beacon->probe_resp_len = beacon->probe_resp_len; 2972 beacon->probe_resp = pos; 2973 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 2974 pos += beacon->probe_resp_len; 2975 } 2976 2977 return new_beacon; 2978} 2979 2980void ieee80211_csa_finalize_work(struct work_struct *work) 2981{ 2982 struct ieee80211_sub_if_data *sdata = 2983 container_of(work, struct ieee80211_sub_if_data, 2984 csa_finalize_work); 2985 struct ieee80211_local *local = sdata->local; 2986 int err, changed = 0; 2987 2988 sdata_lock(sdata); 2989 /* AP might have been stopped while waiting for the lock. */ 2990 if (!sdata->vif.csa_active) 2991 goto unlock; 2992 2993 if (!ieee80211_sdata_running(sdata)) 2994 goto unlock; 2995 2996 sdata->radar_required = sdata->csa_radar_required; 2997 err = ieee80211_vif_change_channel(sdata, &changed); 2998 if (WARN_ON(err < 0)) 2999 goto unlock; 3000 3001 if (!local->use_chanctx) { 3002 local->_oper_chandef = sdata->csa_chandef; 3003 ieee80211_hw_config(local, 0); 3004 } 3005 3006 ieee80211_bss_info_change_notify(sdata, changed); 3007 3008 sdata->vif.csa_active = false; 3009 switch (sdata->vif.type) { 3010 case NL80211_IFTYPE_AP: 3011 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon); 3012 if (err < 0) 3013 goto unlock; 3014 3015 changed |= err; 3016 kfree(sdata->u.ap.next_beacon); 3017 sdata->u.ap.next_beacon = NULL; 3018 3019 ieee80211_bss_info_change_notify(sdata, err); 3020 break; 3021 case NL80211_IFTYPE_ADHOC: 3022 ieee80211_ibss_finish_csa(sdata); 3023 break; 3024#ifdef CONFIG_MAC80211_MESH 3025 case NL80211_IFTYPE_MESH_POINT: 3026 err = ieee80211_mesh_finish_csa(sdata); 3027 if (err < 0) 3028 goto unlock; 3029 break; 3030#endif 3031 default: 3032 WARN_ON(1); 3033 goto unlock; 3034 } 3035 3036 ieee80211_wake_queues_by_reason(&sdata->local->hw, 3037 IEEE80211_MAX_QUEUE_MAP, 3038 IEEE80211_QUEUE_STOP_REASON_CSA); 3039 3040 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3041 3042unlock: 3043 sdata_unlock(sdata); 3044} 3045 3046static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3047 struct cfg80211_csa_settings *params) 3048{ 3049 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3050 struct ieee80211_local *local = sdata->local; 3051 struct ieee80211_chanctx_conf *chanctx_conf; 3052 struct ieee80211_chanctx *chanctx; 3053 struct ieee80211_if_mesh __maybe_unused *ifmsh; 3054 int err, num_chanctx; 3055 3056 lockdep_assert_held(&sdata->wdev.mtx); 3057 3058 if (!list_empty(&local->roc_list) || local->scanning) 3059 return -EBUSY; 3060 3061 if (sdata->wdev.cac_started) 3062 return -EBUSY; 3063 3064 if (cfg80211_chandef_identical(¶ms->chandef, 3065 &sdata->vif.bss_conf.chandef)) 3066 return -EINVAL; 3067 3068 rcu_read_lock(); 3069 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3070 if (!chanctx_conf) { 3071 rcu_read_unlock(); 3072 return -EBUSY; 3073 } 3074 3075 /* don't handle for multi-VIF cases */ 3076 chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); 3077 if (chanctx->refcount > 1) { 3078 rcu_read_unlock(); 3079 return -EBUSY; 3080 } 3081 num_chanctx = 0; 3082 list_for_each_entry_rcu(chanctx, &local->chanctx_list, list) 3083 num_chanctx++; 3084 rcu_read_unlock(); 3085 3086 if (num_chanctx > 1) 3087 return -EBUSY; 3088 3089 /* don't allow another channel switch if one is already active. */ 3090 if (sdata->vif.csa_active) 3091 return -EBUSY; 3092 3093 switch (sdata->vif.type) { 3094 case NL80211_IFTYPE_AP: 3095 sdata->csa_counter_offset_beacon = 3096 params->counter_offset_beacon; 3097 sdata->csa_counter_offset_presp = params->counter_offset_presp; 3098 sdata->u.ap.next_beacon = 3099 cfg80211_beacon_dup(¶ms->beacon_after); 3100 if (!sdata->u.ap.next_beacon) 3101 return -ENOMEM; 3102 3103 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa); 3104 if (err < 0) { 3105 kfree(sdata->u.ap.next_beacon); 3106 return err; 3107 } 3108 break; 3109 case NL80211_IFTYPE_ADHOC: 3110 if (!sdata->vif.bss_conf.ibss_joined) 3111 return -EINVAL; 3112 3113 if (params->chandef.width != sdata->u.ibss.chandef.width) 3114 return -EINVAL; 3115 3116 switch (params->chandef.width) { 3117 case NL80211_CHAN_WIDTH_40: 3118 if (cfg80211_get_chandef_type(¶ms->chandef) != 3119 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3120 return -EINVAL; 3121 case NL80211_CHAN_WIDTH_5: 3122 case NL80211_CHAN_WIDTH_10: 3123 case NL80211_CHAN_WIDTH_20_NOHT: 3124 case NL80211_CHAN_WIDTH_20: 3125 break; 3126 default: 3127 return -EINVAL; 3128 } 3129 3130 /* changes into another band are not supported */ 3131 if (sdata->u.ibss.chandef.chan->band != 3132 params->chandef.chan->band) 3133 return -EINVAL; 3134 3135 err = ieee80211_ibss_csa_beacon(sdata, params); 3136 if (err < 0) 3137 return err; 3138 break; 3139#ifdef CONFIG_MAC80211_MESH 3140 case NL80211_IFTYPE_MESH_POINT: 3141 ifmsh = &sdata->u.mesh; 3142 3143 if (!ifmsh->mesh_id) 3144 return -EINVAL; 3145 3146 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3147 return -EINVAL; 3148 3149 /* changes into another band are not supported */ 3150 if (sdata->vif.bss_conf.chandef.chan->band != 3151 params->chandef.chan->band) 3152 return -EINVAL; 3153 3154 ifmsh->chsw_init = true; 3155 if (!ifmsh->pre_value) 3156 ifmsh->pre_value = 1; 3157 else 3158 ifmsh->pre_value++; 3159 3160 err = ieee80211_mesh_csa_beacon(sdata, params, true); 3161 if (err < 0) { 3162 ifmsh->chsw_init = false; 3163 return err; 3164 } 3165 break; 3166#endif 3167 default: 3168 return -EOPNOTSUPP; 3169 } 3170 3171 sdata->csa_radar_required = params->radar_required; 3172 3173 if (params->block_tx) 3174 ieee80211_stop_queues_by_reason(&local->hw, 3175 IEEE80211_MAX_QUEUE_MAP, 3176 IEEE80211_QUEUE_STOP_REASON_CSA); 3177 3178 sdata->csa_chandef = params->chandef; 3179 sdata->vif.csa_active = true; 3180 3181 ieee80211_bss_info_change_notify(sdata, err); 3182 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3183 3184 return 0; 3185} 3186 3187static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 3188 struct cfg80211_mgmt_tx_params *params, 3189 u64 *cookie) 3190{ 3191 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3192 struct ieee80211_local *local = sdata->local; 3193 struct sk_buff *skb; 3194 struct sta_info *sta; 3195 const struct ieee80211_mgmt *mgmt = (void *)params->buf; 3196 bool need_offchan = false; 3197 u32 flags; 3198 int ret; 3199 3200 if (params->dont_wait_for_ack) 3201 flags = IEEE80211_TX_CTL_NO_ACK; 3202 else 3203 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX | 3204 IEEE80211_TX_CTL_REQ_TX_STATUS; 3205 3206 if (params->no_cck) 3207 flags |= IEEE80211_TX_CTL_NO_CCK_RATE; 3208 3209 switch (sdata->vif.type) { 3210 case NL80211_IFTYPE_ADHOC: 3211 if (!sdata->vif.bss_conf.ibss_joined) 3212 need_offchan = true; 3213 /* fall through */ 3214#ifdef CONFIG_MAC80211_MESH 3215 case NL80211_IFTYPE_MESH_POINT: 3216 if (ieee80211_vif_is_mesh(&sdata->vif) && 3217 !sdata->u.mesh.mesh_id_len) 3218 need_offchan = true; 3219 /* fall through */ 3220#endif 3221 case NL80211_IFTYPE_AP: 3222 case NL80211_IFTYPE_AP_VLAN: 3223 case NL80211_IFTYPE_P2P_GO: 3224 if (sdata->vif.type != NL80211_IFTYPE_ADHOC && 3225 !ieee80211_vif_is_mesh(&sdata->vif) && 3226 !rcu_access_pointer(sdata->bss->beacon)) 3227 need_offchan = true; 3228 if (!ieee80211_is_action(mgmt->frame_control) || 3229 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC || 3230 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED || 3231 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT) 3232 break; 3233 rcu_read_lock(); 3234 sta = sta_info_get(sdata, mgmt->da); 3235 rcu_read_unlock(); 3236 if (!sta) 3237 return -ENOLINK; 3238 break; 3239 case NL80211_IFTYPE_STATION: 3240 case NL80211_IFTYPE_P2P_CLIENT: 3241 if (!sdata->u.mgd.associated) 3242 need_offchan = true; 3243 break; 3244 case NL80211_IFTYPE_P2P_DEVICE: 3245 need_offchan = true; 3246 break; 3247 default: 3248 return -EOPNOTSUPP; 3249 } 3250 3251 /* configurations requiring offchan cannot work if no channel has been 3252 * specified 3253 */ 3254 if (need_offchan && !params->chan) 3255 return -EINVAL; 3256 3257 mutex_lock(&local->mtx); 3258 3259 /* Check if the operating channel is the requested channel */ 3260 if (!need_offchan) { 3261 struct ieee80211_chanctx_conf *chanctx_conf; 3262 3263 rcu_read_lock(); 3264 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3265 3266 if (chanctx_conf) { 3267 need_offchan = params->chan && 3268 (params->chan != 3269 chanctx_conf->def.chan); 3270 } else if (!params->chan) { 3271 ret = -EINVAL; 3272 rcu_read_unlock(); 3273 goto out_unlock; 3274 } else { 3275 need_offchan = true; 3276 } 3277 rcu_read_unlock(); 3278 } 3279 3280 if (need_offchan && !params->offchan) { 3281 ret = -EBUSY; 3282 goto out_unlock; 3283 } 3284 3285 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len); 3286 if (!skb) { 3287 ret = -ENOMEM; 3288 goto out_unlock; 3289 } 3290 skb_reserve(skb, local->hw.extra_tx_headroom); 3291 3292 memcpy(skb_put(skb, params->len), params->buf, params->len); 3293 3294 IEEE80211_SKB_CB(skb)->flags = flags; 3295 3296 skb->dev = sdata->dev; 3297 3298 if (!need_offchan) { 3299 *cookie = (unsigned long) skb; 3300 ieee80211_tx_skb(sdata, skb); 3301 ret = 0; 3302 goto out_unlock; 3303 } 3304 3305 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN | 3306 IEEE80211_TX_INTFL_OFFCHAN_TX_OK; 3307 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL) 3308 IEEE80211_SKB_CB(skb)->hw_queue = 3309 local->hw.offchannel_tx_hw_queue; 3310 3311 /* This will handle all kinds of coalescing and immediate TX */ 3312 ret = ieee80211_start_roc_work(local, sdata, params->chan, 3313 params->wait, cookie, skb, 3314 IEEE80211_ROC_TYPE_MGMT_TX); 3315 if (ret) 3316 kfree_skb(skb); 3317 out_unlock: 3318 mutex_unlock(&local->mtx); 3319 return ret; 3320} 3321 3322static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, 3323 struct wireless_dev *wdev, 3324 u64 cookie) 3325{ 3326 struct ieee80211_local *local = wiphy_priv(wiphy); 3327 3328 return ieee80211_cancel_roc(local, cookie, true); 3329} 3330 3331static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3332 struct wireless_dev *wdev, 3333 u16 frame_type, bool reg) 3334{ 3335 struct ieee80211_local *local = wiphy_priv(wiphy); 3336 3337 switch (frame_type) { 3338 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3339 if (reg) 3340 local->probe_req_reg++; 3341 else 3342 local->probe_req_reg--; 3343 3344 if (!local->open_count) 3345 break; 3346 3347 ieee80211_queue_work(&local->hw, &local->reconfig_filter); 3348 break; 3349 default: 3350 break; 3351 } 3352} 3353 3354static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3355{ 3356 struct ieee80211_local *local = wiphy_priv(wiphy); 3357 3358 if (local->started) 3359 return -EOPNOTSUPP; 3360 3361 return drv_set_antenna(local, tx_ant, rx_ant); 3362} 3363 3364static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3365{ 3366 struct ieee80211_local *local = wiphy_priv(wiphy); 3367 3368 return drv_get_antenna(local, tx_ant, rx_ant); 3369} 3370 3371static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx) 3372{ 3373 struct ieee80211_local *local = wiphy_priv(wiphy); 3374 3375 return drv_set_ringparam(local, tx, rx); 3376} 3377 3378static void ieee80211_get_ringparam(struct wiphy *wiphy, 3379 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max) 3380{ 3381 struct ieee80211_local *local = wiphy_priv(wiphy); 3382 3383 drv_get_ringparam(local, tx, tx_max, rx, rx_max); 3384} 3385 3386static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3387 struct net_device *dev, 3388 struct cfg80211_gtk_rekey_data *data) 3389{ 3390 struct ieee80211_local *local = wiphy_priv(wiphy); 3391 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3392 3393 if (!local->ops->set_rekey_data) 3394 return -EOPNOTSUPP; 3395 3396 drv_set_rekey_data(local, sdata, data); 3397 3398 return 0; 3399} 3400 3401static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb) 3402{ 3403 u8 *pos = (void *)skb_put(skb, 7); 3404 3405 *pos++ = WLAN_EID_EXT_CAPABILITY; 3406 *pos++ = 5; /* len */ 3407 *pos++ = 0x0; 3408 *pos++ = 0x0; 3409 *pos++ = 0x0; 3410 *pos++ = 0x0; 3411 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED; 3412} 3413 3414static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata) 3415{ 3416 struct ieee80211_local *local = sdata->local; 3417 u16 capab; 3418 3419 capab = 0; 3420 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ) 3421 return capab; 3422 3423 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)) 3424 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; 3425 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE)) 3426 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; 3427 3428 return capab; 3429} 3430 3431static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr, 3432 u8 *peer, u8 *bssid) 3433{ 3434 struct ieee80211_tdls_lnkie *lnkid; 3435 3436 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie)); 3437 3438 lnkid->ie_type = WLAN_EID_LINK_ID; 3439 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2; 3440 3441 memcpy(lnkid->bssid, bssid, ETH_ALEN); 3442 memcpy(lnkid->init_sta, src_addr, ETH_ALEN); 3443 memcpy(lnkid->resp_sta, peer, ETH_ALEN); 3444} 3445 3446static int 3447ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev, 3448 u8 *peer, u8 action_code, u8 dialog_token, 3449 u16 status_code, struct sk_buff *skb) 3450{ 3451 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3452 enum ieee80211_band band = ieee80211_get_sdata_band(sdata); 3453 struct ieee80211_tdls_data *tf; 3454 3455 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u)); 3456 3457 memcpy(tf->da, peer, ETH_ALEN); 3458 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN); 3459 tf->ether_type = cpu_to_be16(ETH_P_TDLS); 3460 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE; 3461 3462 switch (action_code) { 3463 case WLAN_TDLS_SETUP_REQUEST: 3464 tf->category = WLAN_CATEGORY_TDLS; 3465 tf->action_code = WLAN_TDLS_SETUP_REQUEST; 3466 3467 skb_put(skb, sizeof(tf->u.setup_req)); 3468 tf->u.setup_req.dialog_token = dialog_token; 3469 tf->u.setup_req.capability = 3470 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); 3471 3472 ieee80211_add_srates_ie(sdata, skb, false, band); 3473 ieee80211_add_ext_srates_ie(sdata, skb, false, band); 3474 ieee80211_tdls_add_ext_capab(skb); 3475 break; 3476 case WLAN_TDLS_SETUP_RESPONSE: 3477 tf->category = WLAN_CATEGORY_TDLS; 3478 tf->action_code = WLAN_TDLS_SETUP_RESPONSE; 3479 3480 skb_put(skb, sizeof(tf->u.setup_resp)); 3481 tf->u.setup_resp.status_code = cpu_to_le16(status_code); 3482 tf->u.setup_resp.dialog_token = dialog_token; 3483 tf->u.setup_resp.capability = 3484 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); 3485 3486 ieee80211_add_srates_ie(sdata, skb, false, band); 3487 ieee80211_add_ext_srates_ie(sdata, skb, false, band); 3488 ieee80211_tdls_add_ext_capab(skb); 3489 break; 3490 case WLAN_TDLS_SETUP_CONFIRM: 3491 tf->category = WLAN_CATEGORY_TDLS; 3492 tf->action_code = WLAN_TDLS_SETUP_CONFIRM; 3493 3494 skb_put(skb, sizeof(tf->u.setup_cfm)); 3495 tf->u.setup_cfm.status_code = cpu_to_le16(status_code); 3496 tf->u.setup_cfm.dialog_token = dialog_token; 3497 break; 3498 case WLAN_TDLS_TEARDOWN: 3499 tf->category = WLAN_CATEGORY_TDLS; 3500 tf->action_code = WLAN_TDLS_TEARDOWN; 3501 3502 skb_put(skb, sizeof(tf->u.teardown)); 3503 tf->u.teardown.reason_code = cpu_to_le16(status_code); 3504 break; 3505 case WLAN_TDLS_DISCOVERY_REQUEST: 3506 tf->category = WLAN_CATEGORY_TDLS; 3507 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST; 3508 3509 skb_put(skb, sizeof(tf->u.discover_req)); 3510 tf->u.discover_req.dialog_token = dialog_token; 3511 break; 3512 default: 3513 return -EINVAL; 3514 } 3515 3516 return 0; 3517} 3518 3519static int 3520ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev, 3521 u8 *peer, u8 action_code, u8 dialog_token, 3522 u16 status_code, struct sk_buff *skb) 3523{ 3524 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3525 enum ieee80211_band band = ieee80211_get_sdata_band(sdata); 3526 struct ieee80211_mgmt *mgmt; 3527 3528 mgmt = (void *)skb_put(skb, 24); 3529 memset(mgmt, 0, 24); 3530 memcpy(mgmt->da, peer, ETH_ALEN); 3531 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 3532 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN); 3533 3534 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 3535 IEEE80211_STYPE_ACTION); 3536 3537 switch (action_code) { 3538 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: 3539 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp)); 3540 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC; 3541 mgmt->u.action.u.tdls_discover_resp.action_code = 3542 WLAN_PUB_ACTION_TDLS_DISCOVER_RES; 3543 mgmt->u.action.u.tdls_discover_resp.dialog_token = 3544 dialog_token; 3545 mgmt->u.action.u.tdls_discover_resp.capability = 3546 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); 3547 3548 ieee80211_add_srates_ie(sdata, skb, false, band); 3549 ieee80211_add_ext_srates_ie(sdata, skb, false, band); 3550 ieee80211_tdls_add_ext_capab(skb); 3551 break; 3552 default: 3553 return -EINVAL; 3554 } 3555 3556 return 0; 3557} 3558 3559static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 3560 u8 *peer, u8 action_code, u8 dialog_token, 3561 u16 status_code, const u8 *extra_ies, 3562 size_t extra_ies_len) 3563{ 3564 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3565 struct ieee80211_local *local = sdata->local; 3566 struct sk_buff *skb = NULL; 3567 bool send_direct; 3568 int ret; 3569 3570 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) 3571 return -ENOTSUPP; 3572 3573 /* make sure we are in managed mode, and associated */ 3574 if (sdata->vif.type != NL80211_IFTYPE_STATION || 3575 !sdata->u.mgd.associated) 3576 return -EINVAL; 3577 3578 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n", 3579 action_code, peer); 3580 3581 skb = dev_alloc_skb(local->hw.extra_tx_headroom + 3582 max(sizeof(struct ieee80211_mgmt), 3583 sizeof(struct ieee80211_tdls_data)) + 3584 50 + /* supported rates */ 3585 7 + /* ext capab */ 3586 extra_ies_len + 3587 sizeof(struct ieee80211_tdls_lnkie)); 3588 if (!skb) 3589 return -ENOMEM; 3590 3591 skb_reserve(skb, local->hw.extra_tx_headroom); 3592 3593 switch (action_code) { 3594 case WLAN_TDLS_SETUP_REQUEST: 3595 case WLAN_TDLS_SETUP_RESPONSE: 3596 case WLAN_TDLS_SETUP_CONFIRM: 3597 case WLAN_TDLS_TEARDOWN: 3598 case WLAN_TDLS_DISCOVERY_REQUEST: 3599 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer, 3600 action_code, dialog_token, 3601 status_code, skb); 3602 send_direct = false; 3603 break; 3604 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: 3605 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code, 3606 dialog_token, status_code, 3607 skb); 3608 send_direct = true; 3609 break; 3610 default: 3611 ret = -ENOTSUPP; 3612 break; 3613 } 3614 3615 if (ret < 0) 3616 goto fail; 3617 3618 if (extra_ies_len) 3619 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len); 3620 3621 /* the TDLS link IE is always added last */ 3622 switch (action_code) { 3623 case WLAN_TDLS_SETUP_REQUEST: 3624 case WLAN_TDLS_SETUP_CONFIRM: 3625 case WLAN_TDLS_TEARDOWN: 3626 case WLAN_TDLS_DISCOVERY_REQUEST: 3627 /* we are the initiator */ 3628 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer, 3629 sdata->u.mgd.bssid); 3630 break; 3631 case WLAN_TDLS_SETUP_RESPONSE: 3632 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: 3633 /* we are the responder */ 3634 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr, 3635 sdata->u.mgd.bssid); 3636 break; 3637 default: 3638 ret = -ENOTSUPP; 3639 goto fail; 3640 } 3641 3642 if (send_direct) { 3643 ieee80211_tx_skb(sdata, skb); 3644 return 0; 3645 } 3646 3647 /* 3648 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise 3649 * we should default to AC_VI. 3650 */ 3651 switch (action_code) { 3652 case WLAN_TDLS_SETUP_REQUEST: 3653 case WLAN_TDLS_SETUP_RESPONSE: 3654 skb_set_queue_mapping(skb, IEEE80211_AC_BK); 3655 skb->priority = 2; 3656 break; 3657 default: 3658 skb_set_queue_mapping(skb, IEEE80211_AC_VI); 3659 skb->priority = 5; 3660 break; 3661 } 3662 3663 /* disable bottom halves when entering the Tx path */ 3664 local_bh_disable(); 3665 ret = ieee80211_subif_start_xmit(skb, dev); 3666 local_bh_enable(); 3667 3668 return ret; 3669 3670fail: 3671 dev_kfree_skb(skb); 3672 return ret; 3673} 3674 3675static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 3676 u8 *peer, enum nl80211_tdls_operation oper) 3677{ 3678 struct sta_info *sta; 3679 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3680 3681 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) 3682 return -ENOTSUPP; 3683 3684 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3685 return -EINVAL; 3686 3687 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer); 3688 3689 switch (oper) { 3690 case NL80211_TDLS_ENABLE_LINK: 3691 rcu_read_lock(); 3692 sta = sta_info_get(sdata, peer); 3693 if (!sta) { 3694 rcu_read_unlock(); 3695 return -ENOLINK; 3696 } 3697 3698 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH); 3699 rcu_read_unlock(); 3700 break; 3701 case NL80211_TDLS_DISABLE_LINK: 3702 return sta_info_destroy_addr(sdata, peer); 3703 case NL80211_TDLS_TEARDOWN: 3704 case NL80211_TDLS_SETUP: 3705 case NL80211_TDLS_DISCOVERY_REQ: 3706 /* We don't support in-driver setup/teardown/discovery */ 3707 return -ENOTSUPP; 3708 default: 3709 return -ENOTSUPP; 3710 } 3711 3712 return 0; 3713} 3714 3715static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3716 const u8 *peer, u64 *cookie) 3717{ 3718 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3719 struct ieee80211_local *local = sdata->local; 3720 struct ieee80211_qos_hdr *nullfunc; 3721 struct sk_buff *skb; 3722 int size = sizeof(*nullfunc); 3723 __le16 fc; 3724 bool qos; 3725 struct ieee80211_tx_info *info; 3726 struct sta_info *sta; 3727 struct ieee80211_chanctx_conf *chanctx_conf; 3728 enum ieee80211_band band; 3729 3730 rcu_read_lock(); 3731 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3732 if (WARN_ON(!chanctx_conf)) { 3733 rcu_read_unlock(); 3734 return -EINVAL; 3735 } 3736 band = chanctx_conf->def.chan->band; 3737 sta = sta_info_get_bss(sdata, peer); 3738 if (sta) { 3739 qos = test_sta_flag(sta, WLAN_STA_WME); 3740 } else { 3741 rcu_read_unlock(); 3742 return -ENOLINK; 3743 } 3744 3745 if (qos) { 3746 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3747 IEEE80211_STYPE_QOS_NULLFUNC | 3748 IEEE80211_FCTL_FROMDS); 3749 } else { 3750 size -= 2; 3751 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3752 IEEE80211_STYPE_NULLFUNC | 3753 IEEE80211_FCTL_FROMDS); 3754 } 3755 3756 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3757 if (!skb) { 3758 rcu_read_unlock(); 3759 return -ENOMEM; 3760 } 3761 3762 skb->dev = dev; 3763 3764 skb_reserve(skb, local->hw.extra_tx_headroom); 3765 3766 nullfunc = (void *) skb_put(skb, size); 3767 nullfunc->frame_control = fc; 3768 nullfunc->duration_id = 0; 3769 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3770 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3771 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3772 nullfunc->seq_ctrl = 0; 3773 3774 info = IEEE80211_SKB_CB(skb); 3775 3776 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3777 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3778 3779 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3780 skb->priority = 7; 3781 if (qos) 3782 nullfunc->qos_ctrl = cpu_to_le16(7); 3783 3784 local_bh_disable(); 3785 ieee80211_xmit(sdata, skb, band); 3786 local_bh_enable(); 3787 rcu_read_unlock(); 3788 3789 *cookie = (unsigned long) skb; 3790 return 0; 3791} 3792 3793static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3794 struct wireless_dev *wdev, 3795 struct cfg80211_chan_def *chandef) 3796{ 3797 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3798 struct ieee80211_local *local = wiphy_priv(wiphy); 3799 struct ieee80211_chanctx_conf *chanctx_conf; 3800 int ret = -ENODATA; 3801 3802 rcu_read_lock(); 3803 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3804 if (chanctx_conf) { 3805 *chandef = chanctx_conf->def; 3806 ret = 0; 3807 } else if (local->open_count > 0 && 3808 local->open_count == local->monitors && 3809 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3810 if (local->use_chanctx) 3811 *chandef = local->monitor_chandef; 3812 else 3813 *chandef = local->_oper_chandef; 3814 ret = 0; 3815 } 3816 rcu_read_unlock(); 3817 3818 return ret; 3819} 3820 3821#ifdef CONFIG_PM 3822static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3823{ 3824 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3825} 3826#endif 3827 3828struct cfg80211_ops mac80211_config_ops = { 3829 .add_virtual_intf = ieee80211_add_iface, 3830 .del_virtual_intf = ieee80211_del_iface, 3831 .change_virtual_intf = ieee80211_change_iface, 3832 .start_p2p_device = ieee80211_start_p2p_device, 3833 .stop_p2p_device = ieee80211_stop_p2p_device, 3834 .add_key = ieee80211_add_key, 3835 .del_key = ieee80211_del_key, 3836 .get_key = ieee80211_get_key, 3837 .set_default_key = ieee80211_config_default_key, 3838 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3839 .start_ap = ieee80211_start_ap, 3840 .change_beacon = ieee80211_change_beacon, 3841 .stop_ap = ieee80211_stop_ap, 3842 .add_station = ieee80211_add_station, 3843 .del_station = ieee80211_del_station, 3844 .change_station = ieee80211_change_station, 3845 .get_station = ieee80211_get_station, 3846 .dump_station = ieee80211_dump_station, 3847 .dump_survey = ieee80211_dump_survey, 3848#ifdef CONFIG_MAC80211_MESH 3849 .add_mpath = ieee80211_add_mpath, 3850 .del_mpath = ieee80211_del_mpath, 3851 .change_mpath = ieee80211_change_mpath, 3852 .get_mpath = ieee80211_get_mpath, 3853 .dump_mpath = ieee80211_dump_mpath, 3854 .update_mesh_config = ieee80211_update_mesh_config, 3855 .get_mesh_config = ieee80211_get_mesh_config, 3856 .join_mesh = ieee80211_join_mesh, 3857 .leave_mesh = ieee80211_leave_mesh, 3858#endif 3859 .change_bss = ieee80211_change_bss, 3860 .set_txq_params = ieee80211_set_txq_params, 3861 .set_monitor_channel = ieee80211_set_monitor_channel, 3862 .suspend = ieee80211_suspend, 3863 .resume = ieee80211_resume, 3864 .scan = ieee80211_scan, 3865 .sched_scan_start = ieee80211_sched_scan_start, 3866 .sched_scan_stop = ieee80211_sched_scan_stop, 3867 .auth = ieee80211_auth, 3868 .assoc = ieee80211_assoc, 3869 .deauth = ieee80211_deauth, 3870 .disassoc = ieee80211_disassoc, 3871 .join_ibss = ieee80211_join_ibss, 3872 .leave_ibss = ieee80211_leave_ibss, 3873 .set_mcast_rate = ieee80211_set_mcast_rate, 3874 .set_wiphy_params = ieee80211_set_wiphy_params, 3875 .set_tx_power = ieee80211_set_tx_power, 3876 .get_tx_power = ieee80211_get_tx_power, 3877 .set_wds_peer = ieee80211_set_wds_peer, 3878 .rfkill_poll = ieee80211_rfkill_poll, 3879 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 3880 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 3881 .set_power_mgmt = ieee80211_set_power_mgmt, 3882 .set_bitrate_mask = ieee80211_set_bitrate_mask, 3883 .remain_on_channel = ieee80211_remain_on_channel, 3884 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 3885 .mgmt_tx = ieee80211_mgmt_tx, 3886 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 3887 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 3888 .mgmt_frame_register = ieee80211_mgmt_frame_register, 3889 .set_antenna = ieee80211_set_antenna, 3890 .get_antenna = ieee80211_get_antenna, 3891 .set_ringparam = ieee80211_set_ringparam, 3892 .get_ringparam = ieee80211_get_ringparam, 3893 .set_rekey_data = ieee80211_set_rekey_data, 3894 .tdls_oper = ieee80211_tdls_oper, 3895 .tdls_mgmt = ieee80211_tdls_mgmt, 3896 .probe_client = ieee80211_probe_client, 3897 .set_noack_map = ieee80211_set_noack_map, 3898#ifdef CONFIG_PM 3899 .set_wakeup = ieee80211_set_wakeup, 3900#endif 3901 .get_et_sset_count = ieee80211_get_et_sset_count, 3902 .get_et_stats = ieee80211_get_et_stats, 3903 .get_et_strings = ieee80211_get_et_strings, 3904 .get_channel = ieee80211_cfg_get_channel, 3905 .start_radar_detection = ieee80211_start_radar_detection, 3906 .channel_switch = ieee80211_channel_switch, 3907}; 3908