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 23 static 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 46 static 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 53 static 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 } 108 109 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 110 struct wireless_dev *wdev) 111 { 112 return ieee80211_do_open(wdev, true); 113 } 114 115 static 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 } 120 121 static 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 } 130 131 static 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 sta_info *sta = NULL; 137 struct ieee80211_key *key; 138 int err; 139 140 if (!ieee80211_sdata_running(sdata)) 141 return -ENETDOWN; 142 143 /* reject WEP and TKIP keys if WEP failed to initialize */ 144 switch (params->cipher) { 145 case WLAN_CIPHER_SUITE_WEP40: 146 case WLAN_CIPHER_SUITE_TKIP: 147 case WLAN_CIPHER_SUITE_WEP104: 148 if (IS_ERR(sdata->local->wep_tx_tfm)) 149 return -EINVAL; 150 break; 151 default: 152 break; 153 } 154 155 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 156 params->key, params->seq_len, params->seq); 157 if (IS_ERR(key)) 158 return PTR_ERR(key); 159 160 if (pairwise) 161 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 162 163 mutex_lock(&sdata->local->sta_mtx); 164 165 if (mac_addr) { 166 if (ieee80211_vif_is_mesh(&sdata->vif)) 167 sta = sta_info_get(sdata, mac_addr); 168 else 169 sta = sta_info_get_bss(sdata, mac_addr); 170 /* 171 * The ASSOC test makes sure the driver is ready to 172 * receive the key. When wpa_supplicant has roamed 173 * using FT, it attempts to set the key before 174 * association has completed, this rejects that attempt 175 * so it will set the key again after assocation. 176 * 177 * TODO: accept the key if we have a station entry and 178 * add it to the device after the station. 179 */ 180 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 181 ieee80211_key_free_unused(key); 182 err = -ENOENT; 183 goto out_unlock; 184 } 185 } 186 187 switch (sdata->vif.type) { 188 case NL80211_IFTYPE_STATION: 189 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 190 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 191 break; 192 case NL80211_IFTYPE_AP: 193 case NL80211_IFTYPE_AP_VLAN: 194 /* Keys without a station are used for TX only */ 195 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP)) 196 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 197 break; 198 case NL80211_IFTYPE_ADHOC: 199 /* no MFP (yet) */ 200 break; 201 case NL80211_IFTYPE_MESH_POINT: 202 #ifdef CONFIG_MAC80211_MESH 203 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 204 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 205 break; 206 #endif 207 case NL80211_IFTYPE_WDS: 208 case NL80211_IFTYPE_MONITOR: 209 case NL80211_IFTYPE_P2P_DEVICE: 210 case NL80211_IFTYPE_UNSPECIFIED: 211 case NUM_NL80211_IFTYPES: 212 case NL80211_IFTYPE_P2P_CLIENT: 213 case NL80211_IFTYPE_P2P_GO: 214 /* shouldn't happen */ 215 WARN_ON_ONCE(1); 216 break; 217 } 218 219 err = ieee80211_key_link(key, sdata, sta); 220 221 out_unlock: 222 mutex_unlock(&sdata->local->sta_mtx); 223 224 return err; 225 } 226 227 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 228 u8 key_idx, bool pairwise, const u8 *mac_addr) 229 { 230 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 231 struct ieee80211_local *local = sdata->local; 232 struct sta_info *sta; 233 struct ieee80211_key *key = NULL; 234 int ret; 235 236 mutex_lock(&local->sta_mtx); 237 mutex_lock(&local->key_mtx); 238 239 if (mac_addr) { 240 ret = -ENOENT; 241 242 sta = sta_info_get_bss(sdata, mac_addr); 243 if (!sta) 244 goto out_unlock; 245 246 if (pairwise) 247 key = key_mtx_dereference(local, sta->ptk); 248 else 249 key = key_mtx_dereference(local, sta->gtk[key_idx]); 250 } else 251 key = key_mtx_dereference(local, sdata->keys[key_idx]); 252 253 if (!key) { 254 ret = -ENOENT; 255 goto out_unlock; 256 } 257 258 ieee80211_key_free(key, true); 259 260 ret = 0; 261 out_unlock: 262 mutex_unlock(&local->key_mtx); 263 mutex_unlock(&local->sta_mtx); 264 265 return ret; 266 } 267 268 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 269 u8 key_idx, bool pairwise, const u8 *mac_addr, 270 void *cookie, 271 void (*callback)(void *cookie, 272 struct key_params *params)) 273 { 274 struct ieee80211_sub_if_data *sdata; 275 struct sta_info *sta = NULL; 276 u8 seq[6] = {0}; 277 struct key_params params; 278 struct ieee80211_key *key = NULL; 279 u64 pn64; 280 u32 iv32; 281 u16 iv16; 282 int err = -ENOENT; 283 284 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 285 286 rcu_read_lock(); 287 288 if (mac_addr) { 289 sta = sta_info_get_bss(sdata, mac_addr); 290 if (!sta) 291 goto out; 292 293 if (pairwise) 294 key = rcu_dereference(sta->ptk); 295 else if (key_idx < NUM_DEFAULT_KEYS) 296 key = rcu_dereference(sta->gtk[key_idx]); 297 } else 298 key = rcu_dereference(sdata->keys[key_idx]); 299 300 if (!key) 301 goto out; 302 303 memset(¶ms, 0, sizeof(params)); 304 305 params.cipher = key->conf.cipher; 306 307 switch (key->conf.cipher) { 308 case WLAN_CIPHER_SUITE_TKIP: 309 iv32 = key->u.tkip.tx.iv32; 310 iv16 = key->u.tkip.tx.iv16; 311 312 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) 313 drv_get_tkip_seq(sdata->local, 314 key->conf.hw_key_idx, 315 &iv32, &iv16); 316 317 seq[0] = iv16 & 0xff; 318 seq[1] = (iv16 >> 8) & 0xff; 319 seq[2] = iv32 & 0xff; 320 seq[3] = (iv32 >> 8) & 0xff; 321 seq[4] = (iv32 >> 16) & 0xff; 322 seq[5] = (iv32 >> 24) & 0xff; 323 params.seq = seq; 324 params.seq_len = 6; 325 break; 326 case WLAN_CIPHER_SUITE_CCMP: 327 pn64 = atomic64_read(&key->u.ccmp.tx_pn); 328 seq[0] = pn64; 329 seq[1] = pn64 >> 8; 330 seq[2] = pn64 >> 16; 331 seq[3] = pn64 >> 24; 332 seq[4] = pn64 >> 32; 333 seq[5] = pn64 >> 40; 334 params.seq = seq; 335 params.seq_len = 6; 336 break; 337 case WLAN_CIPHER_SUITE_AES_CMAC: 338 pn64 = atomic64_read(&key->u.aes_cmac.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 } 349 350 params.key = key->conf.key; 351 params.key_len = key->conf.keylen; 352 353 callback(cookie, ¶ms); 354 err = 0; 355 356 out: 357 rcu_read_unlock(); 358 return err; 359 } 360 361 static int ieee80211_config_default_key(struct wiphy *wiphy, 362 struct net_device *dev, 363 u8 key_idx, bool uni, 364 bool multi) 365 { 366 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 367 368 ieee80211_set_default_key(sdata, key_idx, uni, multi); 369 370 return 0; 371 } 372 373 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 374 struct net_device *dev, 375 u8 key_idx) 376 { 377 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 378 379 ieee80211_set_default_mgmt_key(sdata, key_idx); 380 381 return 0; 382 } 383 384 void sta_set_rate_info_tx(struct sta_info *sta, 385 const struct ieee80211_tx_rate *rate, 386 struct rate_info *rinfo) 387 { 388 rinfo->flags = 0; 389 if (rate->flags & IEEE80211_TX_RC_MCS) { 390 rinfo->flags |= RATE_INFO_FLAGS_MCS; 391 rinfo->mcs = rate->idx; 392 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 393 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 394 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 395 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 396 } else { 397 struct ieee80211_supported_band *sband; 398 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 399 u16 brate; 400 401 sband = sta->local->hw.wiphy->bands[ 402 ieee80211_get_sdata_band(sta->sdata)]; 403 brate = sband->bitrates[rate->idx].bitrate; 404 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 405 } 406 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 407 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; 408 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 409 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH; 410 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 411 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH; 412 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 413 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 414 } 415 416 void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo) 417 { 418 rinfo->flags = 0; 419 420 if (sta->last_rx_rate_flag & RX_FLAG_HT) { 421 rinfo->flags |= RATE_INFO_FLAGS_MCS; 422 rinfo->mcs = sta->last_rx_rate_idx; 423 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) { 424 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 425 rinfo->nss = sta->last_rx_rate_vht_nss; 426 rinfo->mcs = sta->last_rx_rate_idx; 427 } else { 428 struct ieee80211_supported_band *sband; 429 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 430 u16 brate; 431 432 sband = sta->local->hw.wiphy->bands[ 433 ieee80211_get_sdata_band(sta->sdata)]; 434 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate; 435 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 436 } 437 438 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ) 439 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; 440 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI) 441 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 442 if (sta->last_rx_rate_flag & RX_FLAG_80MHZ) 443 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH; 444 if (sta->last_rx_rate_flag & RX_FLAG_80P80MHZ) 445 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH; 446 if (sta->last_rx_rate_flag & RX_FLAG_160MHZ) 447 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH; 448 } 449 450 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) 451 { 452 struct ieee80211_sub_if_data *sdata = sta->sdata; 453 struct ieee80211_local *local = sdata->local; 454 struct timespec uptime; 455 u64 packets = 0; 456 int i, ac; 457 458 sinfo->generation = sdata->local->sta_generation; 459 460 sinfo->filled = STATION_INFO_INACTIVE_TIME | 461 STATION_INFO_RX_BYTES64 | 462 STATION_INFO_TX_BYTES64 | 463 STATION_INFO_RX_PACKETS | 464 STATION_INFO_TX_PACKETS | 465 STATION_INFO_TX_RETRIES | 466 STATION_INFO_TX_FAILED | 467 STATION_INFO_TX_BITRATE | 468 STATION_INFO_RX_BITRATE | 469 STATION_INFO_RX_DROP_MISC | 470 STATION_INFO_BSS_PARAM | 471 STATION_INFO_CONNECTED_TIME | 472 STATION_INFO_STA_FLAGS | 473 STATION_INFO_BEACON_LOSS_COUNT; 474 475 do_posix_clock_monotonic_gettime(&uptime); 476 sinfo->connected_time = uptime.tv_sec - sta->last_connected; 477 478 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx); 479 sinfo->tx_bytes = 0; 480 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 481 sinfo->tx_bytes += sta->tx_bytes[ac]; 482 packets += sta->tx_packets[ac]; 483 } 484 sinfo->tx_packets = packets; 485 sinfo->rx_bytes = sta->rx_bytes; 486 sinfo->rx_packets = sta->rx_packets; 487 sinfo->tx_retries = sta->tx_retry_count; 488 sinfo->tx_failed = sta->tx_retry_failed; 489 sinfo->rx_dropped_misc = sta->rx_dropped; 490 sinfo->beacon_loss_count = sta->beacon_loss_count; 491 492 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) || 493 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) { 494 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG; 495 if (!local->ops->get_rssi || 496 drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal)) 497 sinfo->signal = (s8)sta->last_signal; 498 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal); 499 } 500 if (sta->chains) { 501 sinfo->filled |= STATION_INFO_CHAIN_SIGNAL | 502 STATION_INFO_CHAIN_SIGNAL_AVG; 503 504 sinfo->chains = sta->chains; 505 for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) { 506 sinfo->chain_signal[i] = sta->chain_signal_last[i]; 507 sinfo->chain_signal_avg[i] = 508 (s8) -ewma_read(&sta->chain_signal_avg[i]); 509 } 510 } 511 512 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate); 513 sta_set_rate_info_rx(sta, &sinfo->rxrate); 514 515 if (ieee80211_vif_is_mesh(&sdata->vif)) { 516 #ifdef CONFIG_MAC80211_MESH 517 sinfo->filled |= STATION_INFO_LLID | 518 STATION_INFO_PLID | 519 STATION_INFO_PLINK_STATE | 520 STATION_INFO_LOCAL_PM | 521 STATION_INFO_PEER_PM | 522 STATION_INFO_NONPEER_PM; 523 524 sinfo->llid = le16_to_cpu(sta->llid); 525 sinfo->plid = le16_to_cpu(sta->plid); 526 sinfo->plink_state = sta->plink_state; 527 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) { 528 sinfo->filled |= STATION_INFO_T_OFFSET; 529 sinfo->t_offset = sta->t_offset; 530 } 531 sinfo->local_pm = sta->local_pm; 532 sinfo->peer_pm = sta->peer_pm; 533 sinfo->nonpeer_pm = sta->nonpeer_pm; 534 #endif 535 } 536 537 sinfo->bss_param.flags = 0; 538 if (sdata->vif.bss_conf.use_cts_prot) 539 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT; 540 if (sdata->vif.bss_conf.use_short_preamble) 541 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE; 542 if (sdata->vif.bss_conf.use_short_slot) 543 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME; 544 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period; 545 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int; 546 547 sinfo->sta_flags.set = 0; 548 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | 549 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | 550 BIT(NL80211_STA_FLAG_WME) | 551 BIT(NL80211_STA_FLAG_MFP) | 552 BIT(NL80211_STA_FLAG_AUTHENTICATED) | 553 BIT(NL80211_STA_FLAG_ASSOCIATED) | 554 BIT(NL80211_STA_FLAG_TDLS_PEER); 555 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 556 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED); 557 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE)) 558 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 559 if (test_sta_flag(sta, WLAN_STA_WME)) 560 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME); 561 if (test_sta_flag(sta, WLAN_STA_MFP)) 562 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP); 563 if (test_sta_flag(sta, WLAN_STA_AUTH)) 564 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED); 565 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 566 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 567 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) 568 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER); 569 } 570 571 static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = { 572 "rx_packets", "rx_bytes", "wep_weak_iv_count", 573 "rx_duplicates", "rx_fragments", "rx_dropped", 574 "tx_packets", "tx_bytes", "tx_fragments", 575 "tx_filtered", "tx_retry_failed", "tx_retries", 576 "beacon_loss", "sta_state", "txrate", "rxrate", "signal", 577 "channel", "noise", "ch_time", "ch_time_busy", 578 "ch_time_ext_busy", "ch_time_rx", "ch_time_tx" 579 }; 580 #define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats) 581 582 static int ieee80211_get_et_sset_count(struct wiphy *wiphy, 583 struct net_device *dev, 584 int sset) 585 { 586 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 587 int rv = 0; 588 589 if (sset == ETH_SS_STATS) 590 rv += STA_STATS_LEN; 591 592 rv += drv_get_et_sset_count(sdata, sset); 593 594 if (rv == 0) 595 return -EOPNOTSUPP; 596 return rv; 597 } 598 599 static void ieee80211_get_et_stats(struct wiphy *wiphy, 600 struct net_device *dev, 601 struct ethtool_stats *stats, 602 u64 *data) 603 { 604 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 605 struct ieee80211_chanctx_conf *chanctx_conf; 606 struct ieee80211_channel *channel; 607 struct sta_info *sta; 608 struct ieee80211_local *local = sdata->local; 609 struct station_info sinfo; 610 struct survey_info survey; 611 int i, q; 612 #define STA_STATS_SURVEY_LEN 7 613 614 memset(data, 0, sizeof(u64) * STA_STATS_LEN); 615 616 #define ADD_STA_STATS(sta) \ 617 do { \ 618 data[i++] += sta->rx_packets; \ 619 data[i++] += sta->rx_bytes; \ 620 data[i++] += sta->wep_weak_iv_count; \ 621 data[i++] += sta->num_duplicates; \ 622 data[i++] += sta->rx_fragments; \ 623 data[i++] += sta->rx_dropped; \ 624 \ 625 data[i++] += sinfo.tx_packets; \ 626 data[i++] += sinfo.tx_bytes; \ 627 data[i++] += sta->tx_fragments; \ 628 data[i++] += sta->tx_filtered_count; \ 629 data[i++] += sta->tx_retry_failed; \ 630 data[i++] += sta->tx_retry_count; \ 631 data[i++] += sta->beacon_loss_count; \ 632 } while (0) 633 634 /* For Managed stations, find the single station based on BSSID 635 * and use that. For interface types, iterate through all available 636 * stations and add stats for any station that is assigned to this 637 * network device. 638 */ 639 640 mutex_lock(&local->sta_mtx); 641 642 if (sdata->vif.type == NL80211_IFTYPE_STATION) { 643 sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid); 644 645 if (!(sta && !WARN_ON(sta->sdata->dev != dev))) 646 goto do_survey; 647 648 sinfo.filled = 0; 649 sta_set_sinfo(sta, &sinfo); 650 651 i = 0; 652 ADD_STA_STATS(sta); 653 654 data[i++] = sta->sta_state; 655 656 657 if (sinfo.filled & STATION_INFO_TX_BITRATE) 658 data[i] = 100000 * 659 cfg80211_calculate_bitrate(&sinfo.txrate); 660 i++; 661 if (sinfo.filled & STATION_INFO_RX_BITRATE) 662 data[i] = 100000 * 663 cfg80211_calculate_bitrate(&sinfo.rxrate); 664 i++; 665 666 if (sinfo.filled & STATION_INFO_SIGNAL_AVG) 667 data[i] = (u8)sinfo.signal_avg; 668 i++; 669 } else { 670 list_for_each_entry(sta, &local->sta_list, list) { 671 /* Make sure this station belongs to the proper dev */ 672 if (sta->sdata->dev != dev) 673 continue; 674 675 sinfo.filled = 0; 676 sta_set_sinfo(sta, &sinfo); 677 i = 0; 678 ADD_STA_STATS(sta); 679 } 680 } 681 682 do_survey: 683 i = STA_STATS_LEN - STA_STATS_SURVEY_LEN; 684 /* Get survey stats for current channel */ 685 survey.filled = 0; 686 687 rcu_read_lock(); 688 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 689 if (chanctx_conf) 690 channel = chanctx_conf->def.chan; 691 else 692 channel = NULL; 693 rcu_read_unlock(); 694 695 if (channel) { 696 q = 0; 697 do { 698 survey.filled = 0; 699 if (drv_get_survey(local, q, &survey) != 0) { 700 survey.filled = 0; 701 break; 702 } 703 q++; 704 } while (channel != survey.channel); 705 } 706 707 if (survey.filled) 708 data[i++] = survey.channel->center_freq; 709 else 710 data[i++] = 0; 711 if (survey.filled & SURVEY_INFO_NOISE_DBM) 712 data[i++] = (u8)survey.noise; 713 else 714 data[i++] = -1LL; 715 if (survey.filled & SURVEY_INFO_CHANNEL_TIME) 716 data[i++] = survey.channel_time; 717 else 718 data[i++] = -1LL; 719 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY) 720 data[i++] = survey.channel_time_busy; 721 else 722 data[i++] = -1LL; 723 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) 724 data[i++] = survey.channel_time_ext_busy; 725 else 726 data[i++] = -1LL; 727 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX) 728 data[i++] = survey.channel_time_rx; 729 else 730 data[i++] = -1LL; 731 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX) 732 data[i++] = survey.channel_time_tx; 733 else 734 data[i++] = -1LL; 735 736 mutex_unlock(&local->sta_mtx); 737 738 if (WARN_ON(i != STA_STATS_LEN)) 739 return; 740 741 drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN])); 742 } 743 744 static void ieee80211_get_et_strings(struct wiphy *wiphy, 745 struct net_device *dev, 746 u32 sset, u8 *data) 747 { 748 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 749 int sz_sta_stats = 0; 750 751 if (sset == ETH_SS_STATS) { 752 sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats); 753 memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats); 754 } 755 drv_get_et_strings(sdata, sset, &(data[sz_sta_stats])); 756 } 757 758 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 759 int idx, u8 *mac, struct station_info *sinfo) 760 { 761 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 762 struct ieee80211_local *local = sdata->local; 763 struct sta_info *sta; 764 int ret = -ENOENT; 765 766 mutex_lock(&local->sta_mtx); 767 768 sta = sta_info_get_by_idx(sdata, idx); 769 if (sta) { 770 ret = 0; 771 memcpy(mac, sta->sta.addr, ETH_ALEN); 772 sta_set_sinfo(sta, sinfo); 773 } 774 775 mutex_unlock(&local->sta_mtx); 776 777 return ret; 778 } 779 780 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 781 int idx, struct survey_info *survey) 782 { 783 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 784 785 return drv_get_survey(local, idx, survey); 786 } 787 788 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 789 u8 *mac, struct station_info *sinfo) 790 { 791 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 792 struct ieee80211_local *local = sdata->local; 793 struct sta_info *sta; 794 int ret = -ENOENT; 795 796 mutex_lock(&local->sta_mtx); 797 798 sta = sta_info_get_bss(sdata, mac); 799 if (sta) { 800 ret = 0; 801 sta_set_sinfo(sta, sinfo); 802 } 803 804 mutex_unlock(&local->sta_mtx); 805 806 return ret; 807 } 808 809 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 810 struct cfg80211_chan_def *chandef) 811 { 812 struct ieee80211_local *local = wiphy_priv(wiphy); 813 struct ieee80211_sub_if_data *sdata; 814 int ret = 0; 815 816 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 817 return 0; 818 819 mutex_lock(&local->iflist_mtx); 820 if (local->use_chanctx) { 821 sdata = rcu_dereference_protected( 822 local->monitor_sdata, 823 lockdep_is_held(&local->iflist_mtx)); 824 if (sdata) { 825 ieee80211_vif_release_channel(sdata); 826 ret = ieee80211_vif_use_channel(sdata, chandef, 827 IEEE80211_CHANCTX_EXCLUSIVE); 828 } 829 } else if (local->open_count == local->monitors) { 830 local->_oper_chandef = *chandef; 831 ieee80211_hw_config(local, 0); 832 } 833 834 if (ret == 0) 835 local->monitor_chandef = *chandef; 836 mutex_unlock(&local->iflist_mtx); 837 838 return ret; 839 } 840 841 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 842 const u8 *resp, size_t resp_len) 843 { 844 struct probe_resp *new, *old; 845 846 if (!resp || !resp_len) 847 return 1; 848 849 old = rtnl_dereference(sdata->u.ap.probe_resp); 850 851 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 852 if (!new) 853 return -ENOMEM; 854 855 new->len = resp_len; 856 memcpy(new->data, resp, resp_len); 857 858 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 859 if (old) 860 kfree_rcu(old, rcu_head); 861 862 return 0; 863 } 864 865 int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 866 struct cfg80211_beacon_data *params) 867 { 868 struct beacon_data *new, *old; 869 int new_head_len, new_tail_len; 870 int size, err; 871 u32 changed = BSS_CHANGED_BEACON; 872 873 old = rtnl_dereference(sdata->u.ap.beacon); 874 875 /* Need to have a beacon head if we don't have one yet */ 876 if (!params->head && !old) 877 return -EINVAL; 878 879 /* new or old head? */ 880 if (params->head) 881 new_head_len = params->head_len; 882 else 883 new_head_len = old->head_len; 884 885 /* new or old tail? */ 886 if (params->tail || !old) 887 /* params->tail_len will be zero for !params->tail */ 888 new_tail_len = params->tail_len; 889 else 890 new_tail_len = old->tail_len; 891 892 size = sizeof(*new) + new_head_len + new_tail_len; 893 894 new = kzalloc(size, GFP_KERNEL); 895 if (!new) 896 return -ENOMEM; 897 898 /* start filling the new info now */ 899 900 /* 901 * pointers go into the block we allocated, 902 * memory is | beacon_data | head | tail | 903 */ 904 new->head = ((u8 *) new) + sizeof(*new); 905 new->tail = new->head + new_head_len; 906 new->head_len = new_head_len; 907 new->tail_len = new_tail_len; 908 909 /* copy in head */ 910 if (params->head) 911 memcpy(new->head, params->head, new_head_len); 912 else 913 memcpy(new->head, old->head, new_head_len); 914 915 /* copy in optional tail */ 916 if (params->tail) 917 memcpy(new->tail, params->tail, new_tail_len); 918 else 919 if (old) 920 memcpy(new->tail, old->tail, new_tail_len); 921 922 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 923 params->probe_resp_len); 924 if (err < 0) 925 return err; 926 if (err == 0) 927 changed |= BSS_CHANGED_AP_PROBE_RESP; 928 929 rcu_assign_pointer(sdata->u.ap.beacon, new); 930 931 if (old) 932 kfree_rcu(old, rcu_head); 933 934 return changed; 935 } 936 937 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 938 struct cfg80211_ap_settings *params) 939 { 940 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 941 struct beacon_data *old; 942 struct ieee80211_sub_if_data *vlan; 943 u32 changed = BSS_CHANGED_BEACON_INT | 944 BSS_CHANGED_BEACON_ENABLED | 945 BSS_CHANGED_BEACON | 946 BSS_CHANGED_SSID | 947 BSS_CHANGED_P2P_PS; 948 int err; 949 950 old = rtnl_dereference(sdata->u.ap.beacon); 951 if (old) 952 return -EALREADY; 953 954 /* TODO: make hostapd tell us what it wants */ 955 sdata->smps_mode = IEEE80211_SMPS_OFF; 956 sdata->needed_rx_chains = sdata->local->rx_chains; 957 sdata->radar_required = params->radar_required; 958 959 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 960 IEEE80211_CHANCTX_SHARED); 961 if (err) 962 return err; 963 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 964 965 /* 966 * Apply control port protocol, this allows us to 967 * not encrypt dynamic WEP control frames. 968 */ 969 sdata->control_port_protocol = params->crypto.control_port_ethertype; 970 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 971 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 972 vlan->control_port_protocol = 973 params->crypto.control_port_ethertype; 974 vlan->control_port_no_encrypt = 975 params->crypto.control_port_no_encrypt; 976 } 977 978 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 979 sdata->vif.bss_conf.dtim_period = params->dtim_period; 980 sdata->vif.bss_conf.enable_beacon = true; 981 982 sdata->vif.bss_conf.ssid_len = params->ssid_len; 983 if (params->ssid_len) 984 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 985 params->ssid_len); 986 sdata->vif.bss_conf.hidden_ssid = 987 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 988 989 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 990 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 991 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 992 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 993 if (params->p2p_opp_ps) 994 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 995 IEEE80211_P2P_OPPPS_ENABLE_BIT; 996 997 err = ieee80211_assign_beacon(sdata, ¶ms->beacon); 998 if (err < 0) 999 return err; 1000 changed |= err; 1001 1002 err = drv_start_ap(sdata->local, sdata); 1003 if (err) { 1004 old = rtnl_dereference(sdata->u.ap.beacon); 1005 if (old) 1006 kfree_rcu(old, rcu_head); 1007 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1008 return err; 1009 } 1010 1011 ieee80211_bss_info_change_notify(sdata, changed); 1012 1013 netif_carrier_on(dev); 1014 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1015 netif_carrier_on(vlan->dev); 1016 1017 return 0; 1018 } 1019 1020 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1021 struct cfg80211_beacon_data *params) 1022 { 1023 struct ieee80211_sub_if_data *sdata; 1024 struct beacon_data *old; 1025 int err; 1026 1027 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1028 1029 /* don't allow changing the beacon while CSA is in place - offset 1030 * of channel switch counter may change 1031 */ 1032 if (sdata->vif.csa_active) 1033 return -EBUSY; 1034 1035 old = rtnl_dereference(sdata->u.ap.beacon); 1036 if (!old) 1037 return -ENOENT; 1038 1039 err = ieee80211_assign_beacon(sdata, params); 1040 if (err < 0) 1041 return err; 1042 ieee80211_bss_info_change_notify(sdata, err); 1043 return 0; 1044 } 1045 1046 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1047 { 1048 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1049 struct ieee80211_sub_if_data *vlan; 1050 struct ieee80211_local *local = sdata->local; 1051 struct beacon_data *old_beacon; 1052 struct probe_resp *old_probe_resp; 1053 1054 old_beacon = rtnl_dereference(sdata->u.ap.beacon); 1055 if (!old_beacon) 1056 return -ENOENT; 1057 old_probe_resp = rtnl_dereference(sdata->u.ap.probe_resp); 1058 1059 /* abort any running channel switch */ 1060 sdata->vif.csa_active = false; 1061 cancel_work_sync(&sdata->csa_finalize_work); 1062 1063 /* turn off carrier for this interface and dependent VLANs */ 1064 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1065 netif_carrier_off(vlan->dev); 1066 netif_carrier_off(dev); 1067 1068 /* remove beacon and probe response */ 1069 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1070 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1071 kfree_rcu(old_beacon, rcu_head); 1072 if (old_probe_resp) 1073 kfree_rcu(old_probe_resp, rcu_head); 1074 1075 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1076 sta_info_flush_defer(vlan); 1077 sta_info_flush_defer(sdata); 1078 synchronize_net(); 1079 rcu_barrier(); 1080 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1081 sta_info_flush_cleanup(vlan); 1082 ieee80211_free_keys(vlan); 1083 } 1084 sta_info_flush_cleanup(sdata); 1085 ieee80211_free_keys(sdata); 1086 1087 sdata->vif.bss_conf.enable_beacon = false; 1088 sdata->vif.bss_conf.ssid_len = 0; 1089 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1090 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1091 1092 if (sdata->wdev.cac_started) { 1093 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1094 cfg80211_cac_event(sdata->dev, NL80211_RADAR_CAC_ABORTED, 1095 GFP_KERNEL); 1096 } 1097 1098 drv_stop_ap(sdata->local, sdata); 1099 1100 /* free all potentially still buffered bcast frames */ 1101 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1102 skb_queue_purge(&sdata->u.ap.ps.bc_buf); 1103 1104 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1105 ieee80211_vif_release_channel(sdata); 1106 1107 return 0; 1108 } 1109 1110 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */ 1111 struct iapp_layer2_update { 1112 u8 da[ETH_ALEN]; /* broadcast */ 1113 u8 sa[ETH_ALEN]; /* STA addr */ 1114 __be16 len; /* 6 */ 1115 u8 dsap; /* 0 */ 1116 u8 ssap; /* 0 */ 1117 u8 control; 1118 u8 xid_info[3]; 1119 } __packed; 1120 1121 static void ieee80211_send_layer2_update(struct sta_info *sta) 1122 { 1123 struct iapp_layer2_update *msg; 1124 struct sk_buff *skb; 1125 1126 /* Send Level 2 Update Frame to update forwarding tables in layer 2 1127 * bridge devices */ 1128 1129 skb = dev_alloc_skb(sizeof(*msg)); 1130 if (!skb) 1131 return; 1132 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg)); 1133 1134 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID) 1135 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */ 1136 1137 eth_broadcast_addr(msg->da); 1138 memcpy(msg->sa, sta->sta.addr, ETH_ALEN); 1139 msg->len = htons(6); 1140 msg->dsap = 0; 1141 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */ 1142 msg->control = 0xaf; /* XID response lsb.1111F101. 1143 * F=0 (no poll command; unsolicited frame) */ 1144 msg->xid_info[0] = 0x81; /* XID format identifier */ 1145 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */ 1146 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */ 1147 1148 skb->dev = sta->sdata->dev; 1149 skb->protocol = eth_type_trans(skb, sta->sdata->dev); 1150 memset(skb->cb, 0, sizeof(skb->cb)); 1151 netif_rx_ni(skb); 1152 } 1153 1154 static int sta_apply_auth_flags(struct ieee80211_local *local, 1155 struct sta_info *sta, 1156 u32 mask, u32 set) 1157 { 1158 int ret; 1159 1160 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1161 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1162 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1163 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1164 if (ret) 1165 return ret; 1166 } 1167 1168 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1169 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1170 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1171 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1172 if (ret) 1173 return ret; 1174 } 1175 1176 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1177 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1178 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1179 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1180 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1181 else 1182 ret = 0; 1183 if (ret) 1184 return ret; 1185 } 1186 1187 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1188 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1189 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1190 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1191 if (ret) 1192 return ret; 1193 } 1194 1195 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1196 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1197 test_sta_flag(sta, WLAN_STA_AUTH)) { 1198 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1199 if (ret) 1200 return ret; 1201 } 1202 1203 return 0; 1204 } 1205 1206 static int sta_apply_parameters(struct ieee80211_local *local, 1207 struct sta_info *sta, 1208 struct station_parameters *params) 1209 { 1210 int ret = 0; 1211 struct ieee80211_supported_band *sband; 1212 struct ieee80211_sub_if_data *sdata = sta->sdata; 1213 enum ieee80211_band band = ieee80211_get_sdata_band(sdata); 1214 u32 mask, set; 1215 1216 sband = local->hw.wiphy->bands[band]; 1217 1218 mask = params->sta_flags_mask; 1219 set = params->sta_flags_set; 1220 1221 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1222 /* 1223 * In mesh mode, ASSOCIATED isn't part of the nl80211 1224 * API but must follow AUTHENTICATED for driver state. 1225 */ 1226 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1227 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1228 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1229 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1230 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1231 /* 1232 * TDLS -- everything follows authorized, but 1233 * only becoming authorized is possible, not 1234 * going back 1235 */ 1236 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1237 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1238 BIT(NL80211_STA_FLAG_ASSOCIATED); 1239 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1240 BIT(NL80211_STA_FLAG_ASSOCIATED); 1241 } 1242 } 1243 1244 ret = sta_apply_auth_flags(local, sta, mask, set); 1245 if (ret) 1246 return ret; 1247 1248 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1249 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1250 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1251 else 1252 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1253 } 1254 1255 if (mask & BIT(NL80211_STA_FLAG_WME)) { 1256 if (set & BIT(NL80211_STA_FLAG_WME)) { 1257 set_sta_flag(sta, WLAN_STA_WME); 1258 sta->sta.wme = true; 1259 } else { 1260 clear_sta_flag(sta, WLAN_STA_WME); 1261 sta->sta.wme = false; 1262 } 1263 } 1264 1265 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1266 if (set & BIT(NL80211_STA_FLAG_MFP)) 1267 set_sta_flag(sta, WLAN_STA_MFP); 1268 else 1269 clear_sta_flag(sta, WLAN_STA_MFP); 1270 } 1271 1272 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1273 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1274 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1275 else 1276 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1277 } 1278 1279 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1280 sta->sta.uapsd_queues = params->uapsd_queues; 1281 sta->sta.max_sp = params->max_sp; 1282 } 1283 1284 /* 1285 * cfg80211 validates this (1-2007) and allows setting the AID 1286 * only when creating a new station entry 1287 */ 1288 if (params->aid) 1289 sta->sta.aid = params->aid; 1290 1291 /* 1292 * Some of the following updates would be racy if called on an 1293 * existing station, via ieee80211_change_station(). However, 1294 * all such changes are rejected by cfg80211 except for updates 1295 * changing the supported rates on an existing but not yet used 1296 * TDLS peer. 1297 */ 1298 1299 if (params->listen_interval >= 0) 1300 sta->listen_interval = params->listen_interval; 1301 1302 if (params->supported_rates) { 1303 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1304 sband, params->supported_rates, 1305 params->supported_rates_len, 1306 &sta->sta.supp_rates[band]); 1307 } 1308 1309 if (params->ht_capa) 1310 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1311 params->ht_capa, sta); 1312 1313 if (params->vht_capa) 1314 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1315 params->vht_capa, sta); 1316 1317 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1318 #ifdef CONFIG_MAC80211_MESH 1319 u32 changed = 0; 1320 1321 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1322 switch (params->plink_state) { 1323 case NL80211_PLINK_ESTAB: 1324 if (sta->plink_state != NL80211_PLINK_ESTAB) 1325 changed = mesh_plink_inc_estab_count( 1326 sdata); 1327 sta->plink_state = params->plink_state; 1328 1329 ieee80211_mps_sta_status_update(sta); 1330 changed |= ieee80211_mps_set_sta_local_pm(sta, 1331 sdata->u.mesh.mshcfg.power_mode); 1332 break; 1333 case NL80211_PLINK_LISTEN: 1334 case NL80211_PLINK_BLOCKED: 1335 case NL80211_PLINK_OPN_SNT: 1336 case NL80211_PLINK_OPN_RCVD: 1337 case NL80211_PLINK_CNF_RCVD: 1338 case NL80211_PLINK_HOLDING: 1339 if (sta->plink_state == NL80211_PLINK_ESTAB) 1340 changed = mesh_plink_dec_estab_count( 1341 sdata); 1342 sta->plink_state = params->plink_state; 1343 1344 ieee80211_mps_sta_status_update(sta); 1345 changed |= 1346 ieee80211_mps_local_status_update(sdata); 1347 break; 1348 default: 1349 /* nothing */ 1350 break; 1351 } 1352 } 1353 1354 switch (params->plink_action) { 1355 case NL80211_PLINK_ACTION_NO_ACTION: 1356 /* nothing */ 1357 break; 1358 case NL80211_PLINK_ACTION_OPEN: 1359 changed |= mesh_plink_open(sta); 1360 break; 1361 case NL80211_PLINK_ACTION_BLOCK: 1362 changed |= mesh_plink_block(sta); 1363 break; 1364 } 1365 1366 if (params->local_pm) 1367 changed |= 1368 ieee80211_mps_set_sta_local_pm(sta, 1369 params->local_pm); 1370 ieee80211_bss_info_change_notify(sdata, changed); 1371 #endif 1372 } 1373 1374 return 0; 1375 } 1376 1377 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1378 u8 *mac, struct station_parameters *params) 1379 { 1380 struct ieee80211_local *local = wiphy_priv(wiphy); 1381 struct sta_info *sta; 1382 struct ieee80211_sub_if_data *sdata; 1383 int err; 1384 int layer2_update; 1385 1386 if (params->vlan) { 1387 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1388 1389 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1390 sdata->vif.type != NL80211_IFTYPE_AP) 1391 return -EINVAL; 1392 } else 1393 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1394 1395 if (ether_addr_equal(mac, sdata->vif.addr)) 1396 return -EINVAL; 1397 1398 if (is_multicast_ether_addr(mac)) 1399 return -EINVAL; 1400 1401 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1402 if (!sta) 1403 return -ENOMEM; 1404 1405 /* 1406 * defaults -- if userspace wants something else we'll 1407 * change it accordingly in sta_apply_parameters() 1408 */ 1409 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) { 1410 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH); 1411 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC); 1412 } 1413 1414 err = sta_apply_parameters(local, sta, params); 1415 if (err) { 1416 sta_info_free(local, sta); 1417 return err; 1418 } 1419 1420 /* 1421 * for TDLS, rate control should be initialized only when 1422 * rates are known and station is marked authorized 1423 */ 1424 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) 1425 rate_control_rate_init(sta); 1426 1427 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 1428 sdata->vif.type == NL80211_IFTYPE_AP; 1429 1430 err = sta_info_insert_rcu(sta); 1431 if (err) { 1432 rcu_read_unlock(); 1433 return err; 1434 } 1435 1436 if (layer2_update) 1437 ieee80211_send_layer2_update(sta); 1438 1439 rcu_read_unlock(); 1440 1441 return 0; 1442 } 1443 1444 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1445 u8 *mac) 1446 { 1447 struct ieee80211_sub_if_data *sdata; 1448 1449 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1450 1451 if (mac) 1452 return sta_info_destroy_addr_bss(sdata, mac); 1453 1454 sta_info_flush(sdata); 1455 return 0; 1456 } 1457 1458 static int ieee80211_change_station(struct wiphy *wiphy, 1459 struct net_device *dev, u8 *mac, 1460 struct station_parameters *params) 1461 { 1462 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1463 struct ieee80211_local *local = wiphy_priv(wiphy); 1464 struct sta_info *sta; 1465 struct ieee80211_sub_if_data *vlansdata; 1466 enum cfg80211_station_type statype; 1467 int err; 1468 1469 mutex_lock(&local->sta_mtx); 1470 1471 sta = sta_info_get_bss(sdata, mac); 1472 if (!sta) { 1473 err = -ENOENT; 1474 goto out_err; 1475 } 1476 1477 switch (sdata->vif.type) { 1478 case NL80211_IFTYPE_MESH_POINT: 1479 if (sdata->u.mesh.user_mpm) 1480 statype = CFG80211_STA_MESH_PEER_USER; 1481 else 1482 statype = CFG80211_STA_MESH_PEER_KERNEL; 1483 break; 1484 case NL80211_IFTYPE_ADHOC: 1485 statype = CFG80211_STA_IBSS; 1486 break; 1487 case NL80211_IFTYPE_STATION: 1488 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1489 statype = CFG80211_STA_AP_STA; 1490 break; 1491 } 1492 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1493 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1494 else 1495 statype = CFG80211_STA_TDLS_PEER_SETUP; 1496 break; 1497 case NL80211_IFTYPE_AP: 1498 case NL80211_IFTYPE_AP_VLAN: 1499 statype = CFG80211_STA_AP_CLIENT; 1500 break; 1501 default: 1502 err = -EOPNOTSUPP; 1503 goto out_err; 1504 } 1505 1506 err = cfg80211_check_station_change(wiphy, params, statype); 1507 if (err) 1508 goto out_err; 1509 1510 if (params->vlan && params->vlan != sta->sdata->dev) { 1511 bool prev_4addr = false; 1512 bool new_4addr = false; 1513 1514 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1515 1516 if (params->vlan->ieee80211_ptr->use_4addr) { 1517 if (vlansdata->u.vlan.sta) { 1518 err = -EBUSY; 1519 goto out_err; 1520 } 1521 1522 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1523 new_4addr = true; 1524 } 1525 1526 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1527 sta->sdata->u.vlan.sta) { 1528 rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL); 1529 prev_4addr = true; 1530 } 1531 1532 sta->sdata = vlansdata; 1533 1534 if (sta->sta_state == IEEE80211_STA_AUTHORIZED && 1535 prev_4addr != new_4addr) { 1536 if (new_4addr) 1537 atomic_dec(&sta->sdata->bss->num_mcast_sta); 1538 else 1539 atomic_inc(&sta->sdata->bss->num_mcast_sta); 1540 } 1541 1542 ieee80211_send_layer2_update(sta); 1543 } 1544 1545 err = sta_apply_parameters(local, sta, params); 1546 if (err) 1547 goto out_err; 1548 1549 /* When peer becomes authorized, init rate control as well */ 1550 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1551 test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1552 rate_control_rate_init(sta); 1553 1554 mutex_unlock(&local->sta_mtx); 1555 1556 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1557 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1558 ieee80211_recalc_ps(local, -1); 1559 ieee80211_recalc_ps_vif(sdata); 1560 } 1561 1562 return 0; 1563 out_err: 1564 mutex_unlock(&local->sta_mtx); 1565 return err; 1566 } 1567 1568 #ifdef CONFIG_MAC80211_MESH 1569 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1570 u8 *dst, u8 *next_hop) 1571 { 1572 struct ieee80211_sub_if_data *sdata; 1573 struct mesh_path *mpath; 1574 struct sta_info *sta; 1575 1576 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1577 1578 rcu_read_lock(); 1579 sta = sta_info_get(sdata, next_hop); 1580 if (!sta) { 1581 rcu_read_unlock(); 1582 return -ENOENT; 1583 } 1584 1585 mpath = mesh_path_add(sdata, dst); 1586 if (IS_ERR(mpath)) { 1587 rcu_read_unlock(); 1588 return PTR_ERR(mpath); 1589 } 1590 1591 mesh_path_fix_nexthop(mpath, sta); 1592 1593 rcu_read_unlock(); 1594 return 0; 1595 } 1596 1597 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1598 u8 *dst) 1599 { 1600 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1601 1602 if (dst) 1603 return mesh_path_del(sdata, dst); 1604 1605 mesh_path_flush_by_iface(sdata); 1606 return 0; 1607 } 1608 1609 static int ieee80211_change_mpath(struct wiphy *wiphy, 1610 struct net_device *dev, 1611 u8 *dst, u8 *next_hop) 1612 { 1613 struct ieee80211_sub_if_data *sdata; 1614 struct mesh_path *mpath; 1615 struct sta_info *sta; 1616 1617 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1618 1619 rcu_read_lock(); 1620 1621 sta = sta_info_get(sdata, next_hop); 1622 if (!sta) { 1623 rcu_read_unlock(); 1624 return -ENOENT; 1625 } 1626 1627 mpath = mesh_path_lookup(sdata, dst); 1628 if (!mpath) { 1629 rcu_read_unlock(); 1630 return -ENOENT; 1631 } 1632 1633 mesh_path_fix_nexthop(mpath, sta); 1634 1635 rcu_read_unlock(); 1636 return 0; 1637 } 1638 1639 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1640 struct mpath_info *pinfo) 1641 { 1642 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1643 1644 if (next_hop_sta) 1645 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1646 else 1647 memset(next_hop, 0, ETH_ALEN); 1648 1649 memset(pinfo, 0, sizeof(*pinfo)); 1650 1651 pinfo->generation = mesh_paths_generation; 1652 1653 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1654 MPATH_INFO_SN | 1655 MPATH_INFO_METRIC | 1656 MPATH_INFO_EXPTIME | 1657 MPATH_INFO_DISCOVERY_TIMEOUT | 1658 MPATH_INFO_DISCOVERY_RETRIES | 1659 MPATH_INFO_FLAGS; 1660 1661 pinfo->frame_qlen = mpath->frame_queue.qlen; 1662 pinfo->sn = mpath->sn; 1663 pinfo->metric = mpath->metric; 1664 if (time_before(jiffies, mpath->exp_time)) 1665 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1666 pinfo->discovery_timeout = 1667 jiffies_to_msecs(mpath->discovery_timeout); 1668 pinfo->discovery_retries = mpath->discovery_retries; 1669 if (mpath->flags & MESH_PATH_ACTIVE) 1670 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1671 if (mpath->flags & MESH_PATH_RESOLVING) 1672 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1673 if (mpath->flags & MESH_PATH_SN_VALID) 1674 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1675 if (mpath->flags & MESH_PATH_FIXED) 1676 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1677 if (mpath->flags & MESH_PATH_RESOLVED) 1678 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1679 } 1680 1681 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1682 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1683 1684 { 1685 struct ieee80211_sub_if_data *sdata; 1686 struct mesh_path *mpath; 1687 1688 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1689 1690 rcu_read_lock(); 1691 mpath = mesh_path_lookup(sdata, dst); 1692 if (!mpath) { 1693 rcu_read_unlock(); 1694 return -ENOENT; 1695 } 1696 memcpy(dst, mpath->dst, ETH_ALEN); 1697 mpath_set_pinfo(mpath, next_hop, pinfo); 1698 rcu_read_unlock(); 1699 return 0; 1700 } 1701 1702 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1703 int idx, u8 *dst, u8 *next_hop, 1704 struct mpath_info *pinfo) 1705 { 1706 struct ieee80211_sub_if_data *sdata; 1707 struct mesh_path *mpath; 1708 1709 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1710 1711 rcu_read_lock(); 1712 mpath = mesh_path_lookup_by_idx(sdata, idx); 1713 if (!mpath) { 1714 rcu_read_unlock(); 1715 return -ENOENT; 1716 } 1717 memcpy(dst, mpath->dst, ETH_ALEN); 1718 mpath_set_pinfo(mpath, next_hop, pinfo); 1719 rcu_read_unlock(); 1720 return 0; 1721 } 1722 1723 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1724 struct net_device *dev, 1725 struct mesh_config *conf) 1726 { 1727 struct ieee80211_sub_if_data *sdata; 1728 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1729 1730 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1731 return 0; 1732 } 1733 1734 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1735 { 1736 return (mask >> (parm-1)) & 0x1; 1737 } 1738 1739 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1740 const struct mesh_setup *setup) 1741 { 1742 u8 *new_ie; 1743 const u8 *old_ie; 1744 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1745 struct ieee80211_sub_if_data, u.mesh); 1746 1747 /* allocate information elements */ 1748 new_ie = NULL; 1749 old_ie = ifmsh->ie; 1750 1751 if (setup->ie_len) { 1752 new_ie = kmemdup(setup->ie, setup->ie_len, 1753 GFP_KERNEL); 1754 if (!new_ie) 1755 return -ENOMEM; 1756 } 1757 ifmsh->ie_len = setup->ie_len; 1758 ifmsh->ie = new_ie; 1759 kfree(old_ie); 1760 1761 /* now copy the rest of the setup parameters */ 1762 ifmsh->mesh_id_len = setup->mesh_id_len; 1763 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1764 ifmsh->mesh_sp_id = setup->sync_method; 1765 ifmsh->mesh_pp_id = setup->path_sel_proto; 1766 ifmsh->mesh_pm_id = setup->path_metric; 1767 ifmsh->user_mpm = setup->user_mpm; 1768 ifmsh->mesh_auth_id = setup->auth_id; 1769 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1770 if (setup->is_authenticated) 1771 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1772 if (setup->is_secure) 1773 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1774 1775 /* mcast rate setting in Mesh Node */ 1776 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1777 sizeof(setup->mcast_rate)); 1778 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1779 1780 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1781 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1782 1783 return 0; 1784 } 1785 1786 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1787 struct net_device *dev, u32 mask, 1788 const struct mesh_config *nconf) 1789 { 1790 struct mesh_config *conf; 1791 struct ieee80211_sub_if_data *sdata; 1792 struct ieee80211_if_mesh *ifmsh; 1793 1794 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1795 ifmsh = &sdata->u.mesh; 1796 1797 /* Set the config options which we are interested in setting */ 1798 conf = &(sdata->u.mesh.mshcfg); 1799 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 1800 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 1801 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 1802 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 1803 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 1804 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 1805 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 1806 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 1807 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 1808 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 1809 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 1810 conf->dot11MeshTTL = nconf->dot11MeshTTL; 1811 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 1812 conf->element_ttl = nconf->element_ttl; 1813 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 1814 if (ifmsh->user_mpm) 1815 return -EBUSY; 1816 conf->auto_open_plinks = nconf->auto_open_plinks; 1817 } 1818 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 1819 conf->dot11MeshNbrOffsetMaxNeighbor = 1820 nconf->dot11MeshNbrOffsetMaxNeighbor; 1821 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 1822 conf->dot11MeshHWMPmaxPREQretries = 1823 nconf->dot11MeshHWMPmaxPREQretries; 1824 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 1825 conf->path_refresh_time = nconf->path_refresh_time; 1826 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 1827 conf->min_discovery_timeout = nconf->min_discovery_timeout; 1828 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 1829 conf->dot11MeshHWMPactivePathTimeout = 1830 nconf->dot11MeshHWMPactivePathTimeout; 1831 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 1832 conf->dot11MeshHWMPpreqMinInterval = 1833 nconf->dot11MeshHWMPpreqMinInterval; 1834 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 1835 conf->dot11MeshHWMPperrMinInterval = 1836 nconf->dot11MeshHWMPperrMinInterval; 1837 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 1838 mask)) 1839 conf->dot11MeshHWMPnetDiameterTraversalTime = 1840 nconf->dot11MeshHWMPnetDiameterTraversalTime; 1841 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 1842 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 1843 ieee80211_mesh_root_setup(ifmsh); 1844 } 1845 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 1846 /* our current gate announcement implementation rides on root 1847 * announcements, so require this ifmsh to also be a root node 1848 * */ 1849 if (nconf->dot11MeshGateAnnouncementProtocol && 1850 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 1851 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 1852 ieee80211_mesh_root_setup(ifmsh); 1853 } 1854 conf->dot11MeshGateAnnouncementProtocol = 1855 nconf->dot11MeshGateAnnouncementProtocol; 1856 } 1857 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 1858 conf->dot11MeshHWMPRannInterval = 1859 nconf->dot11MeshHWMPRannInterval; 1860 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 1861 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 1862 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 1863 /* our RSSI threshold implementation is supported only for 1864 * devices that report signal in dBm. 1865 */ 1866 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM)) 1867 return -ENOTSUPP; 1868 conf->rssi_threshold = nconf->rssi_threshold; 1869 } 1870 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 1871 conf->ht_opmode = nconf->ht_opmode; 1872 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 1873 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 1874 } 1875 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 1876 conf->dot11MeshHWMPactivePathToRootTimeout = 1877 nconf->dot11MeshHWMPactivePathToRootTimeout; 1878 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 1879 conf->dot11MeshHWMProotInterval = 1880 nconf->dot11MeshHWMProotInterval; 1881 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 1882 conf->dot11MeshHWMPconfirmationInterval = 1883 nconf->dot11MeshHWMPconfirmationInterval; 1884 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 1885 conf->power_mode = nconf->power_mode; 1886 ieee80211_mps_local_status_update(sdata); 1887 } 1888 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 1889 conf->dot11MeshAwakeWindowDuration = 1890 nconf->dot11MeshAwakeWindowDuration; 1891 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 1892 conf->plink_timeout = nconf->plink_timeout; 1893 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 1894 return 0; 1895 } 1896 1897 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 1898 const struct mesh_config *conf, 1899 const struct mesh_setup *setup) 1900 { 1901 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1902 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 1903 int err; 1904 1905 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 1906 err = copy_mesh_setup(ifmsh, setup); 1907 if (err) 1908 return err; 1909 1910 /* can mesh use other SMPS modes? */ 1911 sdata->smps_mode = IEEE80211_SMPS_OFF; 1912 sdata->needed_rx_chains = sdata->local->rx_chains; 1913 1914 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 1915 IEEE80211_CHANCTX_SHARED); 1916 if (err) 1917 return err; 1918 1919 return ieee80211_start_mesh(sdata); 1920 } 1921 1922 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 1923 { 1924 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1925 1926 ieee80211_stop_mesh(sdata); 1927 ieee80211_vif_release_channel(sdata); 1928 1929 return 0; 1930 } 1931 #endif 1932 1933 static int ieee80211_change_bss(struct wiphy *wiphy, 1934 struct net_device *dev, 1935 struct bss_parameters *params) 1936 { 1937 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1938 enum ieee80211_band band; 1939 u32 changed = 0; 1940 1941 if (!rtnl_dereference(sdata->u.ap.beacon)) 1942 return -ENOENT; 1943 1944 band = ieee80211_get_sdata_band(sdata); 1945 1946 if (params->use_cts_prot >= 0) { 1947 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 1948 changed |= BSS_CHANGED_ERP_CTS_PROT; 1949 } 1950 if (params->use_short_preamble >= 0) { 1951 sdata->vif.bss_conf.use_short_preamble = 1952 params->use_short_preamble; 1953 changed |= BSS_CHANGED_ERP_PREAMBLE; 1954 } 1955 1956 if (!sdata->vif.bss_conf.use_short_slot && 1957 band == IEEE80211_BAND_5GHZ) { 1958 sdata->vif.bss_conf.use_short_slot = true; 1959 changed |= BSS_CHANGED_ERP_SLOT; 1960 } 1961 1962 if (params->use_short_slot_time >= 0) { 1963 sdata->vif.bss_conf.use_short_slot = 1964 params->use_short_slot_time; 1965 changed |= BSS_CHANGED_ERP_SLOT; 1966 } 1967 1968 if (params->basic_rates) { 1969 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1970 wiphy->bands[band], 1971 params->basic_rates, 1972 params->basic_rates_len, 1973 &sdata->vif.bss_conf.basic_rates); 1974 changed |= BSS_CHANGED_BASIC_RATES; 1975 } 1976 1977 if (params->ap_isolate >= 0) { 1978 if (params->ap_isolate) 1979 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 1980 else 1981 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 1982 } 1983 1984 if (params->ht_opmode >= 0) { 1985 sdata->vif.bss_conf.ht_operation_mode = 1986 (u16) params->ht_opmode; 1987 changed |= BSS_CHANGED_HT; 1988 } 1989 1990 if (params->p2p_ctwindow >= 0) { 1991 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 1992 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1993 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1994 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1995 changed |= BSS_CHANGED_P2P_PS; 1996 } 1997 1998 if (params->p2p_opp_ps > 0) { 1999 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2000 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2001 changed |= BSS_CHANGED_P2P_PS; 2002 } else if (params->p2p_opp_ps == 0) { 2003 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2004 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2005 changed |= BSS_CHANGED_P2P_PS; 2006 } 2007 2008 ieee80211_bss_info_change_notify(sdata, changed); 2009 2010 return 0; 2011 } 2012 2013 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2014 struct net_device *dev, 2015 struct ieee80211_txq_params *params) 2016 { 2017 struct ieee80211_local *local = wiphy_priv(wiphy); 2018 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2019 struct ieee80211_tx_queue_params p; 2020 2021 if (!local->ops->conf_tx) 2022 return -EOPNOTSUPP; 2023 2024 if (local->hw.queues < IEEE80211_NUM_ACS) 2025 return -EOPNOTSUPP; 2026 2027 memset(&p, 0, sizeof(p)); 2028 p.aifs = params->aifs; 2029 p.cw_max = params->cwmax; 2030 p.cw_min = params->cwmin; 2031 p.txop = params->txop; 2032 2033 /* 2034 * Setting tx queue params disables u-apsd because it's only 2035 * called in master mode. 2036 */ 2037 p.uapsd = false; 2038 2039 sdata->tx_conf[params->ac] = p; 2040 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2041 wiphy_debug(local->hw.wiphy, 2042 "failed to set TX queue parameters for AC %d\n", 2043 params->ac); 2044 return -EINVAL; 2045 } 2046 2047 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2048 2049 return 0; 2050 } 2051 2052 #ifdef CONFIG_PM 2053 static int ieee80211_suspend(struct wiphy *wiphy, 2054 struct cfg80211_wowlan *wowlan) 2055 { 2056 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2057 } 2058 2059 static int ieee80211_resume(struct wiphy *wiphy) 2060 { 2061 return __ieee80211_resume(wiphy_priv(wiphy)); 2062 } 2063 #else 2064 #define ieee80211_suspend NULL 2065 #define ieee80211_resume NULL 2066 #endif 2067 2068 static int ieee80211_scan(struct wiphy *wiphy, 2069 struct cfg80211_scan_request *req) 2070 { 2071 struct ieee80211_sub_if_data *sdata; 2072 2073 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2074 2075 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2076 case NL80211_IFTYPE_STATION: 2077 case NL80211_IFTYPE_ADHOC: 2078 case NL80211_IFTYPE_MESH_POINT: 2079 case NL80211_IFTYPE_P2P_CLIENT: 2080 case NL80211_IFTYPE_P2P_DEVICE: 2081 break; 2082 case NL80211_IFTYPE_P2P_GO: 2083 if (sdata->local->ops->hw_scan) 2084 break; 2085 /* 2086 * FIXME: implement NoA while scanning in software, 2087 * for now fall through to allow scanning only when 2088 * beaconing hasn't been configured yet 2089 */ 2090 case NL80211_IFTYPE_AP: 2091 /* 2092 * If the scan has been forced (and the driver supports 2093 * forcing), don't care about being beaconing already. 2094 * This will create problems to the attached stations (e.g. all 2095 * the frames sent while scanning on other channel will be 2096 * lost) 2097 */ 2098 if (sdata->u.ap.beacon && 2099 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2100 !(req->flags & NL80211_SCAN_FLAG_AP))) 2101 return -EOPNOTSUPP; 2102 break; 2103 default: 2104 return -EOPNOTSUPP; 2105 } 2106 2107 return ieee80211_request_scan(sdata, req); 2108 } 2109 2110 static int 2111 ieee80211_sched_scan_start(struct wiphy *wiphy, 2112 struct net_device *dev, 2113 struct cfg80211_sched_scan_request *req) 2114 { 2115 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2116 2117 if (!sdata->local->ops->sched_scan_start) 2118 return -EOPNOTSUPP; 2119 2120 return ieee80211_request_sched_scan_start(sdata, req); 2121 } 2122 2123 static int 2124 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev) 2125 { 2126 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2127 2128 if (!sdata->local->ops->sched_scan_stop) 2129 return -EOPNOTSUPP; 2130 2131 return ieee80211_request_sched_scan_stop(sdata); 2132 } 2133 2134 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2135 struct cfg80211_auth_request *req) 2136 { 2137 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2138 } 2139 2140 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2141 struct cfg80211_assoc_request *req) 2142 { 2143 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2144 } 2145 2146 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2147 struct cfg80211_deauth_request *req) 2148 { 2149 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2150 } 2151 2152 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2153 struct cfg80211_disassoc_request *req) 2154 { 2155 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2156 } 2157 2158 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2159 struct cfg80211_ibss_params *params) 2160 { 2161 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2162 } 2163 2164 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2165 { 2166 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2167 } 2168 2169 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2170 int rate[IEEE80211_NUM_BANDS]) 2171 { 2172 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2173 2174 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2175 sizeof(int) * IEEE80211_NUM_BANDS); 2176 2177 return 0; 2178 } 2179 2180 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2181 { 2182 struct ieee80211_local *local = wiphy_priv(wiphy); 2183 int err; 2184 2185 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2186 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2187 2188 if (err) 2189 return err; 2190 } 2191 2192 if (changed & WIPHY_PARAM_COVERAGE_CLASS) { 2193 err = drv_set_coverage_class(local, wiphy->coverage_class); 2194 2195 if (err) 2196 return err; 2197 } 2198 2199 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2200 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2201 2202 if (err) 2203 return err; 2204 } 2205 2206 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2207 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2208 return -EINVAL; 2209 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2210 } 2211 if (changed & WIPHY_PARAM_RETRY_LONG) { 2212 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2213 return -EINVAL; 2214 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2215 } 2216 if (changed & 2217 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2218 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2219 2220 return 0; 2221 } 2222 2223 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2224 struct wireless_dev *wdev, 2225 enum nl80211_tx_power_setting type, int mbm) 2226 { 2227 struct ieee80211_local *local = wiphy_priv(wiphy); 2228 struct ieee80211_sub_if_data *sdata; 2229 2230 if (wdev) { 2231 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2232 2233 switch (type) { 2234 case NL80211_TX_POWER_AUTOMATIC: 2235 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2236 break; 2237 case NL80211_TX_POWER_LIMITED: 2238 case NL80211_TX_POWER_FIXED: 2239 if (mbm < 0 || (mbm % 100)) 2240 return -EOPNOTSUPP; 2241 sdata->user_power_level = MBM_TO_DBM(mbm); 2242 break; 2243 } 2244 2245 ieee80211_recalc_txpower(sdata); 2246 2247 return 0; 2248 } 2249 2250 switch (type) { 2251 case NL80211_TX_POWER_AUTOMATIC: 2252 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2253 break; 2254 case NL80211_TX_POWER_LIMITED: 2255 case NL80211_TX_POWER_FIXED: 2256 if (mbm < 0 || (mbm % 100)) 2257 return -EOPNOTSUPP; 2258 local->user_power_level = MBM_TO_DBM(mbm); 2259 break; 2260 } 2261 2262 mutex_lock(&local->iflist_mtx); 2263 list_for_each_entry(sdata, &local->interfaces, list) 2264 sdata->user_power_level = local->user_power_level; 2265 list_for_each_entry(sdata, &local->interfaces, list) 2266 ieee80211_recalc_txpower(sdata); 2267 mutex_unlock(&local->iflist_mtx); 2268 2269 return 0; 2270 } 2271 2272 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2273 struct wireless_dev *wdev, 2274 int *dbm) 2275 { 2276 struct ieee80211_local *local = wiphy_priv(wiphy); 2277 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2278 2279 if (!local->use_chanctx) 2280 *dbm = local->hw.conf.power_level; 2281 else 2282 *dbm = sdata->vif.bss_conf.txpower; 2283 2284 return 0; 2285 } 2286 2287 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2288 const u8 *addr) 2289 { 2290 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2291 2292 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2293 2294 return 0; 2295 } 2296 2297 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2298 { 2299 struct ieee80211_local *local = wiphy_priv(wiphy); 2300 2301 drv_rfkill_poll(local); 2302 } 2303 2304 #ifdef CONFIG_NL80211_TESTMODE 2305 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2306 struct wireless_dev *wdev, 2307 void *data, int len) 2308 { 2309 struct ieee80211_local *local = wiphy_priv(wiphy); 2310 struct ieee80211_vif *vif = NULL; 2311 2312 if (!local->ops->testmode_cmd) 2313 return -EOPNOTSUPP; 2314 2315 if (wdev) { 2316 struct ieee80211_sub_if_data *sdata; 2317 2318 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2319 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2320 vif = &sdata->vif; 2321 } 2322 2323 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2324 } 2325 2326 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2327 struct sk_buff *skb, 2328 struct netlink_callback *cb, 2329 void *data, int len) 2330 { 2331 struct ieee80211_local *local = wiphy_priv(wiphy); 2332 2333 if (!local->ops->testmode_dump) 2334 return -EOPNOTSUPP; 2335 2336 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2337 } 2338 #endif 2339 2340 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata, 2341 enum ieee80211_smps_mode smps_mode) 2342 { 2343 const u8 *ap; 2344 enum ieee80211_smps_mode old_req; 2345 int err; 2346 2347 lockdep_assert_held(&sdata->wdev.mtx); 2348 2349 old_req = sdata->u.mgd.req_smps; 2350 sdata->u.mgd.req_smps = smps_mode; 2351 2352 if (old_req == smps_mode && 2353 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2354 return 0; 2355 2356 /* 2357 * If not associated, or current association is not an HT 2358 * association, there's no need to do anything, just store 2359 * the new value until we associate. 2360 */ 2361 if (!sdata->u.mgd.associated || 2362 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2363 return 0; 2364 2365 ap = sdata->u.mgd.associated->bssid; 2366 2367 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2368 if (sdata->u.mgd.powersave) 2369 smps_mode = IEEE80211_SMPS_DYNAMIC; 2370 else 2371 smps_mode = IEEE80211_SMPS_OFF; 2372 } 2373 2374 /* send SM PS frame to AP */ 2375 err = ieee80211_send_smps_action(sdata, smps_mode, 2376 ap, ap); 2377 if (err) 2378 sdata->u.mgd.req_smps = old_req; 2379 2380 return err; 2381 } 2382 2383 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2384 bool enabled, int timeout) 2385 { 2386 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2387 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2388 2389 if (sdata->vif.type != NL80211_IFTYPE_STATION && 2390 sdata->vif.type != NL80211_IFTYPE_MESH_POINT) 2391 return -EOPNOTSUPP; 2392 2393 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS)) 2394 return -EOPNOTSUPP; 2395 2396 if (enabled == sdata->u.mgd.powersave && 2397 timeout == local->dynamic_ps_forced_timeout) 2398 return 0; 2399 2400 sdata->u.mgd.powersave = enabled; 2401 local->dynamic_ps_forced_timeout = timeout; 2402 2403 /* no change, but if automatic follow powersave */ 2404 sdata_lock(sdata); 2405 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps); 2406 sdata_unlock(sdata); 2407 2408 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS) 2409 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2410 2411 ieee80211_recalc_ps(local, -1); 2412 ieee80211_recalc_ps_vif(sdata); 2413 2414 return 0; 2415 } 2416 2417 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2418 struct net_device *dev, 2419 s32 rssi_thold, u32 rssi_hyst) 2420 { 2421 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2422 struct ieee80211_vif *vif = &sdata->vif; 2423 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2424 2425 if (rssi_thold == bss_conf->cqm_rssi_thold && 2426 rssi_hyst == bss_conf->cqm_rssi_hyst) 2427 return 0; 2428 2429 bss_conf->cqm_rssi_thold = rssi_thold; 2430 bss_conf->cqm_rssi_hyst = rssi_hyst; 2431 2432 /* tell the driver upon association, unless already associated */ 2433 if (sdata->u.mgd.associated && 2434 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2435 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2436 2437 return 0; 2438 } 2439 2440 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2441 struct net_device *dev, 2442 const u8 *addr, 2443 const struct cfg80211_bitrate_mask *mask) 2444 { 2445 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2446 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2447 int i, ret; 2448 2449 if (!ieee80211_sdata_running(sdata)) 2450 return -ENETDOWN; 2451 2452 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) { 2453 ret = drv_set_bitrate_mask(local, sdata, mask); 2454 if (ret) 2455 return ret; 2456 } 2457 2458 for (i = 0; i < IEEE80211_NUM_BANDS; i++) { 2459 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2460 int j; 2461 2462 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2463 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].mcs, 2464 sizeof(mask->control[i].mcs)); 2465 2466 sdata->rc_has_mcs_mask[i] = false; 2467 if (!sband) 2468 continue; 2469 2470 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) 2471 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2472 sdata->rc_has_mcs_mask[i] = true; 2473 break; 2474 } 2475 } 2476 2477 return 0; 2478 } 2479 2480 static int ieee80211_start_roc_work(struct ieee80211_local *local, 2481 struct ieee80211_sub_if_data *sdata, 2482 struct ieee80211_channel *channel, 2483 unsigned int duration, u64 *cookie, 2484 struct sk_buff *txskb, 2485 enum ieee80211_roc_type type) 2486 { 2487 struct ieee80211_roc_work *roc, *tmp; 2488 bool queued = false; 2489 int ret; 2490 2491 lockdep_assert_held(&local->mtx); 2492 2493 if (local->use_chanctx && !local->ops->remain_on_channel) 2494 return -EOPNOTSUPP; 2495 2496 roc = kzalloc(sizeof(*roc), GFP_KERNEL); 2497 if (!roc) 2498 return -ENOMEM; 2499 2500 roc->chan = channel; 2501 roc->duration = duration; 2502 roc->req_duration = duration; 2503 roc->frame = txskb; 2504 roc->type = type; 2505 roc->mgmt_tx_cookie = (unsigned long)txskb; 2506 roc->sdata = sdata; 2507 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work); 2508 INIT_LIST_HEAD(&roc->dependents); 2509 2510 /* if there's one pending or we're scanning, queue this one */ 2511 if (!list_empty(&local->roc_list) || 2512 local->scanning || local->radar_detect_enabled) 2513 goto out_check_combine; 2514 2515 /* if not HW assist, just queue & schedule work */ 2516 if (!local->ops->remain_on_channel) { 2517 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0); 2518 goto out_queue; 2519 } 2520 2521 /* otherwise actually kick it off here (for error handling) */ 2522 2523 /* 2524 * If the duration is zero, then the driver 2525 * wouldn't actually do anything. Set it to 2526 * 10 for now. 2527 * 2528 * TODO: cancel the off-channel operation 2529 * when we get the SKB's TX status and 2530 * the wait time was zero before. 2531 */ 2532 if (!duration) 2533 duration = 10; 2534 2535 ret = drv_remain_on_channel(local, sdata, channel, duration, type); 2536 if (ret) { 2537 kfree(roc); 2538 return ret; 2539 } 2540 2541 roc->started = true; 2542 goto out_queue; 2543 2544 out_check_combine: 2545 list_for_each_entry(tmp, &local->roc_list, list) { 2546 if (tmp->chan != channel || tmp->sdata != sdata) 2547 continue; 2548 2549 /* 2550 * Extend this ROC if possible: 2551 * 2552 * If it hasn't started yet, just increase the duration 2553 * and add the new one to the list of dependents. 2554 * If the type of the new ROC has higher priority, modify the 2555 * type of the previous one to match that of the new one. 2556 */ 2557 if (!tmp->started) { 2558 list_add_tail(&roc->list, &tmp->dependents); 2559 tmp->duration = max(tmp->duration, roc->duration); 2560 tmp->type = max(tmp->type, roc->type); 2561 queued = true; 2562 break; 2563 } 2564 2565 /* If it has already started, it's more difficult ... */ 2566 if (local->ops->remain_on_channel) { 2567 unsigned long j = jiffies; 2568 2569 /* 2570 * In the offloaded ROC case, if it hasn't begun, add 2571 * this new one to the dependent list to be handled 2572 * when the master one begins. If it has begun, 2573 * check that there's still a minimum time left and 2574 * if so, start this one, transmitting the frame, but 2575 * add it to the list directly after this one with 2576 * a reduced time so we'll ask the driver to execute 2577 * it right after finishing the previous one, in the 2578 * hope that it'll also be executed right afterwards, 2579 * effectively extending the old one. 2580 * If there's no minimum time left, just add it to the 2581 * normal list. 2582 * TODO: the ROC type is ignored here, assuming that it 2583 * is better to immediately use the current ROC. 2584 */ 2585 if (!tmp->hw_begun) { 2586 list_add_tail(&roc->list, &tmp->dependents); 2587 queued = true; 2588 break; 2589 } 2590 2591 if (time_before(j + IEEE80211_ROC_MIN_LEFT, 2592 tmp->hw_start_time + 2593 msecs_to_jiffies(tmp->duration))) { 2594 int new_dur; 2595 2596 ieee80211_handle_roc_started(roc); 2597 2598 new_dur = roc->duration - 2599 jiffies_to_msecs(tmp->hw_start_time + 2600 msecs_to_jiffies( 2601 tmp->duration) - 2602 j); 2603 2604 if (new_dur > 0) { 2605 /* add right after tmp */ 2606 list_add(&roc->list, &tmp->list); 2607 } else { 2608 list_add_tail(&roc->list, 2609 &tmp->dependents); 2610 } 2611 queued = true; 2612 } 2613 } else if (del_timer_sync(&tmp->work.timer)) { 2614 unsigned long new_end; 2615 2616 /* 2617 * In the software ROC case, cancel the timer, if 2618 * that fails then the finish work is already 2619 * queued/pending and thus we queue the new ROC 2620 * normally, if that succeeds then we can extend 2621 * the timer duration and TX the frame (if any.) 2622 */ 2623 2624 list_add_tail(&roc->list, &tmp->dependents); 2625 queued = true; 2626 2627 new_end = jiffies + msecs_to_jiffies(roc->duration); 2628 2629 /* ok, it was started & we canceled timer */ 2630 if (time_after(new_end, tmp->work.timer.expires)) 2631 mod_timer(&tmp->work.timer, new_end); 2632 else 2633 add_timer(&tmp->work.timer); 2634 2635 ieee80211_handle_roc_started(roc); 2636 } 2637 break; 2638 } 2639 2640 out_queue: 2641 if (!queued) 2642 list_add_tail(&roc->list, &local->roc_list); 2643 2644 /* 2645 * cookie is either the roc cookie (for normal roc) 2646 * or the SKB (for mgmt TX) 2647 */ 2648 if (!txskb) { 2649 /* local->mtx protects this */ 2650 local->roc_cookie_counter++; 2651 roc->cookie = local->roc_cookie_counter; 2652 /* wow, you wrapped 64 bits ... more likely a bug */ 2653 if (WARN_ON(roc->cookie == 0)) { 2654 roc->cookie = 1; 2655 local->roc_cookie_counter++; 2656 } 2657 *cookie = roc->cookie; 2658 } else { 2659 *cookie = (unsigned long)txskb; 2660 } 2661 2662 return 0; 2663 } 2664 2665 static int ieee80211_remain_on_channel(struct wiphy *wiphy, 2666 struct wireless_dev *wdev, 2667 struct ieee80211_channel *chan, 2668 unsigned int duration, 2669 u64 *cookie) 2670 { 2671 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2672 struct ieee80211_local *local = sdata->local; 2673 int ret; 2674 2675 mutex_lock(&local->mtx); 2676 ret = ieee80211_start_roc_work(local, sdata, chan, 2677 duration, cookie, NULL, 2678 IEEE80211_ROC_TYPE_NORMAL); 2679 mutex_unlock(&local->mtx); 2680 2681 return ret; 2682 } 2683 2684 static int ieee80211_cancel_roc(struct ieee80211_local *local, 2685 u64 cookie, bool mgmt_tx) 2686 { 2687 struct ieee80211_roc_work *roc, *tmp, *found = NULL; 2688 int ret; 2689 2690 mutex_lock(&local->mtx); 2691 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) { 2692 struct ieee80211_roc_work *dep, *tmp2; 2693 2694 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) { 2695 if (!mgmt_tx && dep->cookie != cookie) 2696 continue; 2697 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie) 2698 continue; 2699 /* found dependent item -- just remove it */ 2700 list_del(&dep->list); 2701 mutex_unlock(&local->mtx); 2702 2703 ieee80211_roc_notify_destroy(dep, true); 2704 return 0; 2705 } 2706 2707 if (!mgmt_tx && roc->cookie != cookie) 2708 continue; 2709 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie) 2710 continue; 2711 2712 found = roc; 2713 break; 2714 } 2715 2716 if (!found) { 2717 mutex_unlock(&local->mtx); 2718 return -ENOENT; 2719 } 2720 2721 /* 2722 * We found the item to cancel, so do that. Note that it 2723 * may have dependents, which we also cancel (and send 2724 * the expired signal for.) Not doing so would be quite 2725 * tricky here, but we may need to fix it later. 2726 */ 2727 2728 if (local->ops->remain_on_channel) { 2729 if (found->started) { 2730 ret = drv_cancel_remain_on_channel(local); 2731 if (WARN_ON_ONCE(ret)) { 2732 mutex_unlock(&local->mtx); 2733 return ret; 2734 } 2735 } 2736 2737 list_del(&found->list); 2738 2739 if (found->started) 2740 ieee80211_start_next_roc(local); 2741 mutex_unlock(&local->mtx); 2742 2743 ieee80211_roc_notify_destroy(found, true); 2744 } else { 2745 /* work may be pending so use it all the time */ 2746 found->abort = true; 2747 ieee80211_queue_delayed_work(&local->hw, &found->work, 0); 2748 2749 mutex_unlock(&local->mtx); 2750 2751 /* work will clean up etc */ 2752 flush_delayed_work(&found->work); 2753 WARN_ON(!found->to_be_freed); 2754 kfree(found); 2755 } 2756 2757 return 0; 2758 } 2759 2760 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, 2761 struct wireless_dev *wdev, 2762 u64 cookie) 2763 { 2764 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2765 struct ieee80211_local *local = sdata->local; 2766 2767 return ieee80211_cancel_roc(local, cookie, false); 2768 } 2769 2770 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2771 struct net_device *dev, 2772 struct cfg80211_chan_def *chandef) 2773 { 2774 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2775 struct ieee80211_local *local = sdata->local; 2776 unsigned long timeout; 2777 int err; 2778 2779 if (!list_empty(&local->roc_list) || local->scanning) 2780 return -EBUSY; 2781 2782 /* whatever, but channel contexts should not complain about that one */ 2783 sdata->smps_mode = IEEE80211_SMPS_OFF; 2784 sdata->needed_rx_chains = local->rx_chains; 2785 sdata->radar_required = true; 2786 2787 mutex_lock(&local->iflist_mtx); 2788 err = ieee80211_vif_use_channel(sdata, chandef, 2789 IEEE80211_CHANCTX_SHARED); 2790 mutex_unlock(&local->iflist_mtx); 2791 if (err) 2792 return err; 2793 2794 timeout = msecs_to_jiffies(IEEE80211_DFS_MIN_CAC_TIME_MS); 2795 ieee80211_queue_delayed_work(&sdata->local->hw, 2796 &sdata->dfs_cac_timer_work, timeout); 2797 2798 return 0; 2799 } 2800 2801 static struct cfg80211_beacon_data * 2802 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2803 { 2804 struct cfg80211_beacon_data *new_beacon; 2805 u8 *pos; 2806 int len; 2807 2808 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2809 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2810 beacon->probe_resp_len; 2811 2812 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2813 if (!new_beacon) 2814 return NULL; 2815 2816 pos = (u8 *)(new_beacon + 1); 2817 if (beacon->head_len) { 2818 new_beacon->head_len = beacon->head_len; 2819 new_beacon->head = pos; 2820 memcpy(pos, beacon->head, beacon->head_len); 2821 pos += beacon->head_len; 2822 } 2823 if (beacon->tail_len) { 2824 new_beacon->tail_len = beacon->tail_len; 2825 new_beacon->tail = pos; 2826 memcpy(pos, beacon->tail, beacon->tail_len); 2827 pos += beacon->tail_len; 2828 } 2829 if (beacon->beacon_ies_len) { 2830 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2831 new_beacon->beacon_ies = pos; 2832 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2833 pos += beacon->beacon_ies_len; 2834 } 2835 if (beacon->proberesp_ies_len) { 2836 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2837 new_beacon->proberesp_ies = pos; 2838 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2839 pos += beacon->proberesp_ies_len; 2840 } 2841 if (beacon->assocresp_ies_len) { 2842 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2843 new_beacon->assocresp_ies = pos; 2844 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2845 pos += beacon->assocresp_ies_len; 2846 } 2847 if (beacon->probe_resp_len) { 2848 new_beacon->probe_resp_len = beacon->probe_resp_len; 2849 beacon->probe_resp = pos; 2850 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 2851 pos += beacon->probe_resp_len; 2852 } 2853 2854 return new_beacon; 2855 } 2856 2857 void ieee80211_csa_finalize_work(struct work_struct *work) 2858 { 2859 struct ieee80211_sub_if_data *sdata = 2860 container_of(work, struct ieee80211_sub_if_data, 2861 csa_finalize_work); 2862 struct ieee80211_local *local = sdata->local; 2863 int err, changed; 2864 2865 if (!ieee80211_sdata_running(sdata)) 2866 return; 2867 2868 if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_AP)) 2869 return; 2870 2871 sdata->radar_required = sdata->csa_radar_required; 2872 err = ieee80211_vif_change_channel(sdata, &local->csa_chandef, 2873 &changed); 2874 if (WARN_ON(err < 0)) 2875 return; 2876 2877 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon); 2878 if (err < 0) 2879 return; 2880 2881 changed |= err; 2882 kfree(sdata->u.ap.next_beacon); 2883 sdata->u.ap.next_beacon = NULL; 2884 sdata->vif.csa_active = false; 2885 2886 ieee80211_wake_queues_by_reason(&sdata->local->hw, 2887 IEEE80211_MAX_QUEUE_MAP, 2888 IEEE80211_QUEUE_STOP_REASON_CSA); 2889 2890 ieee80211_bss_info_change_notify(sdata, changed); 2891 2892 cfg80211_ch_switch_notify(sdata->dev, &local->csa_chandef); 2893 } 2894 2895 static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 2896 struct cfg80211_csa_settings *params) 2897 { 2898 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2899 struct ieee80211_local *local = sdata->local; 2900 struct ieee80211_chanctx_conf *chanctx_conf; 2901 struct ieee80211_chanctx *chanctx; 2902 int err, num_chanctx; 2903 2904 if (!list_empty(&local->roc_list) || local->scanning) 2905 return -EBUSY; 2906 2907 if (sdata->wdev.cac_started) 2908 return -EBUSY; 2909 2910 if (cfg80211_chandef_identical(¶ms->chandef, 2911 &sdata->vif.bss_conf.chandef)) 2912 return -EINVAL; 2913 2914 rcu_read_lock(); 2915 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 2916 if (!chanctx_conf) { 2917 rcu_read_unlock(); 2918 return -EBUSY; 2919 } 2920 2921 /* don't handle for multi-VIF cases */ 2922 chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); 2923 if (chanctx->refcount > 1) { 2924 rcu_read_unlock(); 2925 return -EBUSY; 2926 } 2927 num_chanctx = 0; 2928 list_for_each_entry_rcu(chanctx, &local->chanctx_list, list) 2929 num_chanctx++; 2930 rcu_read_unlock(); 2931 2932 if (num_chanctx > 1) 2933 return -EBUSY; 2934 2935 /* don't allow another channel switch if one is already active. */ 2936 if (sdata->vif.csa_active) 2937 return -EBUSY; 2938 2939 /* only handle AP for now. */ 2940 switch (sdata->vif.type) { 2941 case NL80211_IFTYPE_AP: 2942 break; 2943 default: 2944 return -EOPNOTSUPP; 2945 } 2946 2947 sdata->u.ap.next_beacon = cfg80211_beacon_dup(¶ms->beacon_after); 2948 if (!sdata->u.ap.next_beacon) 2949 return -ENOMEM; 2950 2951 sdata->csa_counter_offset_beacon = params->counter_offset_beacon; 2952 sdata->csa_counter_offset_presp = params->counter_offset_presp; 2953 sdata->csa_radar_required = params->radar_required; 2954 2955 if (params->block_tx) 2956 ieee80211_stop_queues_by_reason(&local->hw, 2957 IEEE80211_MAX_QUEUE_MAP, 2958 IEEE80211_QUEUE_STOP_REASON_CSA); 2959 2960 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa); 2961 if (err < 0) 2962 return err; 2963 2964 local->csa_chandef = params->chandef; 2965 sdata->vif.csa_active = true; 2966 2967 ieee80211_bss_info_change_notify(sdata, err); 2968 drv_channel_switch_beacon(sdata, ¶ms->chandef); 2969 2970 return 0; 2971 } 2972 2973 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 2974 struct ieee80211_channel *chan, bool offchan, 2975 unsigned int wait, const u8 *buf, size_t len, 2976 bool no_cck, bool dont_wait_for_ack, u64 *cookie) 2977 { 2978 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2979 struct ieee80211_local *local = sdata->local; 2980 struct sk_buff *skb; 2981 struct sta_info *sta; 2982 const struct ieee80211_mgmt *mgmt = (void *)buf; 2983 bool need_offchan = false; 2984 u32 flags; 2985 int ret; 2986 2987 if (dont_wait_for_ack) 2988 flags = IEEE80211_TX_CTL_NO_ACK; 2989 else 2990 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX | 2991 IEEE80211_TX_CTL_REQ_TX_STATUS; 2992 2993 if (no_cck) 2994 flags |= IEEE80211_TX_CTL_NO_CCK_RATE; 2995 2996 switch (sdata->vif.type) { 2997 case NL80211_IFTYPE_ADHOC: 2998 if (!sdata->vif.bss_conf.ibss_joined) 2999 need_offchan = true; 3000 /* fall through */ 3001 #ifdef CONFIG_MAC80211_MESH 3002 case NL80211_IFTYPE_MESH_POINT: 3003 if (ieee80211_vif_is_mesh(&sdata->vif) && 3004 !sdata->u.mesh.mesh_id_len) 3005 need_offchan = true; 3006 /* fall through */ 3007 #endif 3008 case NL80211_IFTYPE_AP: 3009 case NL80211_IFTYPE_AP_VLAN: 3010 case NL80211_IFTYPE_P2P_GO: 3011 if (sdata->vif.type != NL80211_IFTYPE_ADHOC && 3012 !ieee80211_vif_is_mesh(&sdata->vif) && 3013 !rcu_access_pointer(sdata->bss->beacon)) 3014 need_offchan = true; 3015 if (!ieee80211_is_action(mgmt->frame_control) || 3016 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC || 3017 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED) 3018 break; 3019 rcu_read_lock(); 3020 sta = sta_info_get(sdata, mgmt->da); 3021 rcu_read_unlock(); 3022 if (!sta) 3023 return -ENOLINK; 3024 break; 3025 case NL80211_IFTYPE_STATION: 3026 case NL80211_IFTYPE_P2P_CLIENT: 3027 if (!sdata->u.mgd.associated) 3028 need_offchan = true; 3029 break; 3030 case NL80211_IFTYPE_P2P_DEVICE: 3031 need_offchan = true; 3032 break; 3033 default: 3034 return -EOPNOTSUPP; 3035 } 3036 3037 /* configurations requiring offchan cannot work if no channel has been 3038 * specified 3039 */ 3040 if (need_offchan && !chan) 3041 return -EINVAL; 3042 3043 mutex_lock(&local->mtx); 3044 3045 /* Check if the operating channel is the requested channel */ 3046 if (!need_offchan) { 3047 struct ieee80211_chanctx_conf *chanctx_conf; 3048 3049 rcu_read_lock(); 3050 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3051 3052 if (chanctx_conf) { 3053 need_offchan = chan && (chan != chanctx_conf->def.chan); 3054 } else if (!chan) { 3055 ret = -EINVAL; 3056 rcu_read_unlock(); 3057 goto out_unlock; 3058 } else { 3059 need_offchan = true; 3060 } 3061 rcu_read_unlock(); 3062 } 3063 3064 if (need_offchan && !offchan) { 3065 ret = -EBUSY; 3066 goto out_unlock; 3067 } 3068 3069 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len); 3070 if (!skb) { 3071 ret = -ENOMEM; 3072 goto out_unlock; 3073 } 3074 skb_reserve(skb, local->hw.extra_tx_headroom); 3075 3076 memcpy(skb_put(skb, len), buf, len); 3077 3078 IEEE80211_SKB_CB(skb)->flags = flags; 3079 3080 skb->dev = sdata->dev; 3081 3082 if (!need_offchan) { 3083 *cookie = (unsigned long) skb; 3084 ieee80211_tx_skb(sdata, skb); 3085 ret = 0; 3086 goto out_unlock; 3087 } 3088 3089 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN | 3090 IEEE80211_TX_INTFL_OFFCHAN_TX_OK; 3091 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL) 3092 IEEE80211_SKB_CB(skb)->hw_queue = 3093 local->hw.offchannel_tx_hw_queue; 3094 3095 /* This will handle all kinds of coalescing and immediate TX */ 3096 ret = ieee80211_start_roc_work(local, sdata, chan, 3097 wait, cookie, skb, 3098 IEEE80211_ROC_TYPE_MGMT_TX); 3099 if (ret) 3100 kfree_skb(skb); 3101 out_unlock: 3102 mutex_unlock(&local->mtx); 3103 return ret; 3104 } 3105 3106 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, 3107 struct wireless_dev *wdev, 3108 u64 cookie) 3109 { 3110 struct ieee80211_local *local = wiphy_priv(wiphy); 3111 3112 return ieee80211_cancel_roc(local, cookie, true); 3113 } 3114 3115 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3116 struct wireless_dev *wdev, 3117 u16 frame_type, bool reg) 3118 { 3119 struct ieee80211_local *local = wiphy_priv(wiphy); 3120 3121 switch (frame_type) { 3122 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3123 if (reg) 3124 local->probe_req_reg++; 3125 else 3126 local->probe_req_reg--; 3127 3128 if (!local->open_count) 3129 break; 3130 3131 ieee80211_queue_work(&local->hw, &local->reconfig_filter); 3132 break; 3133 default: 3134 break; 3135 } 3136 } 3137 3138 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3139 { 3140 struct ieee80211_local *local = wiphy_priv(wiphy); 3141 3142 if (local->started) 3143 return -EOPNOTSUPP; 3144 3145 return drv_set_antenna(local, tx_ant, rx_ant); 3146 } 3147 3148 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3149 { 3150 struct ieee80211_local *local = wiphy_priv(wiphy); 3151 3152 return drv_get_antenna(local, tx_ant, rx_ant); 3153 } 3154 3155 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx) 3156 { 3157 struct ieee80211_local *local = wiphy_priv(wiphy); 3158 3159 return drv_set_ringparam(local, tx, rx); 3160 } 3161 3162 static void ieee80211_get_ringparam(struct wiphy *wiphy, 3163 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max) 3164 { 3165 struct ieee80211_local *local = wiphy_priv(wiphy); 3166 3167 drv_get_ringparam(local, tx, tx_max, rx, rx_max); 3168 } 3169 3170 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3171 struct net_device *dev, 3172 struct cfg80211_gtk_rekey_data *data) 3173 { 3174 struct ieee80211_local *local = wiphy_priv(wiphy); 3175 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3176 3177 if (!local->ops->set_rekey_data) 3178 return -EOPNOTSUPP; 3179 3180 drv_set_rekey_data(local, sdata, data); 3181 3182 return 0; 3183 } 3184 3185 static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb) 3186 { 3187 u8 *pos = (void *)skb_put(skb, 7); 3188 3189 *pos++ = WLAN_EID_EXT_CAPABILITY; 3190 *pos++ = 5; /* len */ 3191 *pos++ = 0x0; 3192 *pos++ = 0x0; 3193 *pos++ = 0x0; 3194 *pos++ = 0x0; 3195 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED; 3196 } 3197 3198 static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata) 3199 { 3200 struct ieee80211_local *local = sdata->local; 3201 u16 capab; 3202 3203 capab = 0; 3204 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ) 3205 return capab; 3206 3207 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)) 3208 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; 3209 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE)) 3210 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; 3211 3212 return capab; 3213 } 3214 3215 static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr, 3216 u8 *peer, u8 *bssid) 3217 { 3218 struct ieee80211_tdls_lnkie *lnkid; 3219 3220 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie)); 3221 3222 lnkid->ie_type = WLAN_EID_LINK_ID; 3223 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2; 3224 3225 memcpy(lnkid->bssid, bssid, ETH_ALEN); 3226 memcpy(lnkid->init_sta, src_addr, ETH_ALEN); 3227 memcpy(lnkid->resp_sta, peer, ETH_ALEN); 3228 } 3229 3230 static int 3231 ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev, 3232 u8 *peer, u8 action_code, u8 dialog_token, 3233 u16 status_code, struct sk_buff *skb) 3234 { 3235 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3236 enum ieee80211_band band = ieee80211_get_sdata_band(sdata); 3237 struct ieee80211_tdls_data *tf; 3238 3239 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u)); 3240 3241 memcpy(tf->da, peer, ETH_ALEN); 3242 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN); 3243 tf->ether_type = cpu_to_be16(ETH_P_TDLS); 3244 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE; 3245 3246 switch (action_code) { 3247 case WLAN_TDLS_SETUP_REQUEST: 3248 tf->category = WLAN_CATEGORY_TDLS; 3249 tf->action_code = WLAN_TDLS_SETUP_REQUEST; 3250 3251 skb_put(skb, sizeof(tf->u.setup_req)); 3252 tf->u.setup_req.dialog_token = dialog_token; 3253 tf->u.setup_req.capability = 3254 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); 3255 3256 ieee80211_add_srates_ie(sdata, skb, false, band); 3257 ieee80211_add_ext_srates_ie(sdata, skb, false, band); 3258 ieee80211_tdls_add_ext_capab(skb); 3259 break; 3260 case WLAN_TDLS_SETUP_RESPONSE: 3261 tf->category = WLAN_CATEGORY_TDLS; 3262 tf->action_code = WLAN_TDLS_SETUP_RESPONSE; 3263 3264 skb_put(skb, sizeof(tf->u.setup_resp)); 3265 tf->u.setup_resp.status_code = cpu_to_le16(status_code); 3266 tf->u.setup_resp.dialog_token = dialog_token; 3267 tf->u.setup_resp.capability = 3268 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); 3269 3270 ieee80211_add_srates_ie(sdata, skb, false, band); 3271 ieee80211_add_ext_srates_ie(sdata, skb, false, band); 3272 ieee80211_tdls_add_ext_capab(skb); 3273 break; 3274 case WLAN_TDLS_SETUP_CONFIRM: 3275 tf->category = WLAN_CATEGORY_TDLS; 3276 tf->action_code = WLAN_TDLS_SETUP_CONFIRM; 3277 3278 skb_put(skb, sizeof(tf->u.setup_cfm)); 3279 tf->u.setup_cfm.status_code = cpu_to_le16(status_code); 3280 tf->u.setup_cfm.dialog_token = dialog_token; 3281 break; 3282 case WLAN_TDLS_TEARDOWN: 3283 tf->category = WLAN_CATEGORY_TDLS; 3284 tf->action_code = WLAN_TDLS_TEARDOWN; 3285 3286 skb_put(skb, sizeof(tf->u.teardown)); 3287 tf->u.teardown.reason_code = cpu_to_le16(status_code); 3288 break; 3289 case WLAN_TDLS_DISCOVERY_REQUEST: 3290 tf->category = WLAN_CATEGORY_TDLS; 3291 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST; 3292 3293 skb_put(skb, sizeof(tf->u.discover_req)); 3294 tf->u.discover_req.dialog_token = dialog_token; 3295 break; 3296 default: 3297 return -EINVAL; 3298 } 3299 3300 return 0; 3301 } 3302 3303 static int 3304 ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev, 3305 u8 *peer, u8 action_code, u8 dialog_token, 3306 u16 status_code, struct sk_buff *skb) 3307 { 3308 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3309 enum ieee80211_band band = ieee80211_get_sdata_band(sdata); 3310 struct ieee80211_mgmt *mgmt; 3311 3312 mgmt = (void *)skb_put(skb, 24); 3313 memset(mgmt, 0, 24); 3314 memcpy(mgmt->da, peer, ETH_ALEN); 3315 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 3316 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN); 3317 3318 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 3319 IEEE80211_STYPE_ACTION); 3320 3321 switch (action_code) { 3322 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: 3323 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp)); 3324 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC; 3325 mgmt->u.action.u.tdls_discover_resp.action_code = 3326 WLAN_PUB_ACTION_TDLS_DISCOVER_RES; 3327 mgmt->u.action.u.tdls_discover_resp.dialog_token = 3328 dialog_token; 3329 mgmt->u.action.u.tdls_discover_resp.capability = 3330 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); 3331 3332 ieee80211_add_srates_ie(sdata, skb, false, band); 3333 ieee80211_add_ext_srates_ie(sdata, skb, false, band); 3334 ieee80211_tdls_add_ext_capab(skb); 3335 break; 3336 default: 3337 return -EINVAL; 3338 } 3339 3340 return 0; 3341 } 3342 3343 static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 3344 u8 *peer, u8 action_code, u8 dialog_token, 3345 u16 status_code, const u8 *extra_ies, 3346 size_t extra_ies_len) 3347 { 3348 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3349 struct ieee80211_local *local = sdata->local; 3350 struct sk_buff *skb = NULL; 3351 bool send_direct; 3352 int ret; 3353 3354 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) 3355 return -ENOTSUPP; 3356 3357 /* make sure we are in managed mode, and associated */ 3358 if (sdata->vif.type != NL80211_IFTYPE_STATION || 3359 !sdata->u.mgd.associated) 3360 return -EINVAL; 3361 3362 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n", 3363 action_code, peer); 3364 3365 skb = dev_alloc_skb(local->hw.extra_tx_headroom + 3366 max(sizeof(struct ieee80211_mgmt), 3367 sizeof(struct ieee80211_tdls_data)) + 3368 50 + /* supported rates */ 3369 7 + /* ext capab */ 3370 extra_ies_len + 3371 sizeof(struct ieee80211_tdls_lnkie)); 3372 if (!skb) 3373 return -ENOMEM; 3374 3375 skb_reserve(skb, local->hw.extra_tx_headroom); 3376 3377 switch (action_code) { 3378 case WLAN_TDLS_SETUP_REQUEST: 3379 case WLAN_TDLS_SETUP_RESPONSE: 3380 case WLAN_TDLS_SETUP_CONFIRM: 3381 case WLAN_TDLS_TEARDOWN: 3382 case WLAN_TDLS_DISCOVERY_REQUEST: 3383 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer, 3384 action_code, dialog_token, 3385 status_code, skb); 3386 send_direct = false; 3387 break; 3388 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: 3389 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code, 3390 dialog_token, status_code, 3391 skb); 3392 send_direct = true; 3393 break; 3394 default: 3395 ret = -ENOTSUPP; 3396 break; 3397 } 3398 3399 if (ret < 0) 3400 goto fail; 3401 3402 if (extra_ies_len) 3403 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len); 3404 3405 /* the TDLS link IE is always added last */ 3406 switch (action_code) { 3407 case WLAN_TDLS_SETUP_REQUEST: 3408 case WLAN_TDLS_SETUP_CONFIRM: 3409 case WLAN_TDLS_TEARDOWN: 3410 case WLAN_TDLS_DISCOVERY_REQUEST: 3411 /* we are the initiator */ 3412 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer, 3413 sdata->u.mgd.bssid); 3414 break; 3415 case WLAN_TDLS_SETUP_RESPONSE: 3416 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: 3417 /* we are the responder */ 3418 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr, 3419 sdata->u.mgd.bssid); 3420 break; 3421 default: 3422 ret = -ENOTSUPP; 3423 goto fail; 3424 } 3425 3426 if (send_direct) { 3427 ieee80211_tx_skb(sdata, skb); 3428 return 0; 3429 } 3430 3431 /* 3432 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise 3433 * we should default to AC_VI. 3434 */ 3435 switch (action_code) { 3436 case WLAN_TDLS_SETUP_REQUEST: 3437 case WLAN_TDLS_SETUP_RESPONSE: 3438 skb_set_queue_mapping(skb, IEEE80211_AC_BK); 3439 skb->priority = 2; 3440 break; 3441 default: 3442 skb_set_queue_mapping(skb, IEEE80211_AC_VI); 3443 skb->priority = 5; 3444 break; 3445 } 3446 3447 /* disable bottom halves when entering the Tx path */ 3448 local_bh_disable(); 3449 ret = ieee80211_subif_start_xmit(skb, dev); 3450 local_bh_enable(); 3451 3452 return ret; 3453 3454 fail: 3455 dev_kfree_skb(skb); 3456 return ret; 3457 } 3458 3459 static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 3460 u8 *peer, enum nl80211_tdls_operation oper) 3461 { 3462 struct sta_info *sta; 3463 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3464 3465 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) 3466 return -ENOTSUPP; 3467 3468 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3469 return -EINVAL; 3470 3471 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer); 3472 3473 switch (oper) { 3474 case NL80211_TDLS_ENABLE_LINK: 3475 rcu_read_lock(); 3476 sta = sta_info_get(sdata, peer); 3477 if (!sta) { 3478 rcu_read_unlock(); 3479 return -ENOLINK; 3480 } 3481 3482 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH); 3483 rcu_read_unlock(); 3484 break; 3485 case NL80211_TDLS_DISABLE_LINK: 3486 return sta_info_destroy_addr(sdata, peer); 3487 case NL80211_TDLS_TEARDOWN: 3488 case NL80211_TDLS_SETUP: 3489 case NL80211_TDLS_DISCOVERY_REQ: 3490 /* We don't support in-driver setup/teardown/discovery */ 3491 return -ENOTSUPP; 3492 default: 3493 return -ENOTSUPP; 3494 } 3495 3496 return 0; 3497 } 3498 3499 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3500 const u8 *peer, u64 *cookie) 3501 { 3502 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3503 struct ieee80211_local *local = sdata->local; 3504 struct ieee80211_qos_hdr *nullfunc; 3505 struct sk_buff *skb; 3506 int size = sizeof(*nullfunc); 3507 __le16 fc; 3508 bool qos; 3509 struct ieee80211_tx_info *info; 3510 struct sta_info *sta; 3511 struct ieee80211_chanctx_conf *chanctx_conf; 3512 enum ieee80211_band band; 3513 3514 rcu_read_lock(); 3515 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3516 if (WARN_ON(!chanctx_conf)) { 3517 rcu_read_unlock(); 3518 return -EINVAL; 3519 } 3520 band = chanctx_conf->def.chan->band; 3521 sta = sta_info_get(sdata, peer); 3522 if (sta) { 3523 qos = test_sta_flag(sta, WLAN_STA_WME); 3524 } else { 3525 rcu_read_unlock(); 3526 return -ENOLINK; 3527 } 3528 3529 if (qos) { 3530 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3531 IEEE80211_STYPE_QOS_NULLFUNC | 3532 IEEE80211_FCTL_FROMDS); 3533 } else { 3534 size -= 2; 3535 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3536 IEEE80211_STYPE_NULLFUNC | 3537 IEEE80211_FCTL_FROMDS); 3538 } 3539 3540 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3541 if (!skb) { 3542 rcu_read_unlock(); 3543 return -ENOMEM; 3544 } 3545 3546 skb->dev = dev; 3547 3548 skb_reserve(skb, local->hw.extra_tx_headroom); 3549 3550 nullfunc = (void *) skb_put(skb, size); 3551 nullfunc->frame_control = fc; 3552 nullfunc->duration_id = 0; 3553 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3554 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3555 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3556 nullfunc->seq_ctrl = 0; 3557 3558 info = IEEE80211_SKB_CB(skb); 3559 3560 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3561 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3562 3563 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3564 skb->priority = 7; 3565 if (qos) 3566 nullfunc->qos_ctrl = cpu_to_le16(7); 3567 3568 local_bh_disable(); 3569 ieee80211_xmit(sdata, skb, band); 3570 local_bh_enable(); 3571 rcu_read_unlock(); 3572 3573 *cookie = (unsigned long) skb; 3574 return 0; 3575 } 3576 3577 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3578 struct wireless_dev *wdev, 3579 struct cfg80211_chan_def *chandef) 3580 { 3581 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3582 struct ieee80211_local *local = wiphy_priv(wiphy); 3583 struct ieee80211_chanctx_conf *chanctx_conf; 3584 int ret = -ENODATA; 3585 3586 rcu_read_lock(); 3587 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3588 if (chanctx_conf) { 3589 *chandef = chanctx_conf->def; 3590 ret = 0; 3591 } else if (local->open_count > 0 && 3592 local->open_count == local->monitors && 3593 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3594 if (local->use_chanctx) 3595 *chandef = local->monitor_chandef; 3596 else 3597 *chandef = local->_oper_chandef; 3598 ret = 0; 3599 } 3600 rcu_read_unlock(); 3601 3602 return ret; 3603 } 3604 3605 #ifdef CONFIG_PM 3606 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3607 { 3608 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3609 } 3610 #endif 3611 3612 struct cfg80211_ops mac80211_config_ops = { 3613 .add_virtual_intf = ieee80211_add_iface, 3614 .del_virtual_intf = ieee80211_del_iface, 3615 .change_virtual_intf = ieee80211_change_iface, 3616 .start_p2p_device = ieee80211_start_p2p_device, 3617 .stop_p2p_device = ieee80211_stop_p2p_device, 3618 .add_key = ieee80211_add_key, 3619 .del_key = ieee80211_del_key, 3620 .get_key = ieee80211_get_key, 3621 .set_default_key = ieee80211_config_default_key, 3622 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3623 .start_ap = ieee80211_start_ap, 3624 .change_beacon = ieee80211_change_beacon, 3625 .stop_ap = ieee80211_stop_ap, 3626 .add_station = ieee80211_add_station, 3627 .del_station = ieee80211_del_station, 3628 .change_station = ieee80211_change_station, 3629 .get_station = ieee80211_get_station, 3630 .dump_station = ieee80211_dump_station, 3631 .dump_survey = ieee80211_dump_survey, 3632 #ifdef CONFIG_MAC80211_MESH 3633 .add_mpath = ieee80211_add_mpath, 3634 .del_mpath = ieee80211_del_mpath, 3635 .change_mpath = ieee80211_change_mpath, 3636 .get_mpath = ieee80211_get_mpath, 3637 .dump_mpath = ieee80211_dump_mpath, 3638 .update_mesh_config = ieee80211_update_mesh_config, 3639 .get_mesh_config = ieee80211_get_mesh_config, 3640 .join_mesh = ieee80211_join_mesh, 3641 .leave_mesh = ieee80211_leave_mesh, 3642 #endif 3643 .change_bss = ieee80211_change_bss, 3644 .set_txq_params = ieee80211_set_txq_params, 3645 .set_monitor_channel = ieee80211_set_monitor_channel, 3646 .suspend = ieee80211_suspend, 3647 .resume = ieee80211_resume, 3648 .scan = ieee80211_scan, 3649 .sched_scan_start = ieee80211_sched_scan_start, 3650 .sched_scan_stop = ieee80211_sched_scan_stop, 3651 .auth = ieee80211_auth, 3652 .assoc = ieee80211_assoc, 3653 .deauth = ieee80211_deauth, 3654 .disassoc = ieee80211_disassoc, 3655 .join_ibss = ieee80211_join_ibss, 3656 .leave_ibss = ieee80211_leave_ibss, 3657 .set_mcast_rate = ieee80211_set_mcast_rate, 3658 .set_wiphy_params = ieee80211_set_wiphy_params, 3659 .set_tx_power = ieee80211_set_tx_power, 3660 .get_tx_power = ieee80211_get_tx_power, 3661 .set_wds_peer = ieee80211_set_wds_peer, 3662 .rfkill_poll = ieee80211_rfkill_poll, 3663 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 3664 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 3665 .set_power_mgmt = ieee80211_set_power_mgmt, 3666 .set_bitrate_mask = ieee80211_set_bitrate_mask, 3667 .remain_on_channel = ieee80211_remain_on_channel, 3668 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 3669 .mgmt_tx = ieee80211_mgmt_tx, 3670 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 3671 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 3672 .mgmt_frame_register = ieee80211_mgmt_frame_register, 3673 .set_antenna = ieee80211_set_antenna, 3674 .get_antenna = ieee80211_get_antenna, 3675 .set_ringparam = ieee80211_set_ringparam, 3676 .get_ringparam = ieee80211_get_ringparam, 3677 .set_rekey_data = ieee80211_set_rekey_data, 3678 .tdls_oper = ieee80211_tdls_oper, 3679 .tdls_mgmt = ieee80211_tdls_mgmt, 3680 .probe_client = ieee80211_probe_client, 3681 .set_noack_map = ieee80211_set_noack_map, 3682 #ifdef CONFIG_PM 3683 .set_wakeup = ieee80211_set_wakeup, 3684 #endif 3685 .get_et_sset_count = ieee80211_get_et_sset_count, 3686 .get_et_stats = ieee80211_get_et_stats, 3687 .get_et_strings = ieee80211_get_et_strings, 3688 .get_channel = ieee80211_cfg_get_channel, 3689 .start_radar_detection = ieee80211_start_radar_detection, 3690 .channel_switch = ieee80211_channel_switch, 3691 }; 3692