cfg.c revision 31559f35c5724976fd975e5d7e90cdb693b8dd27
1/* 2 * mac80211 configuration hooks for cfg80211 3 * 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 5 * 6 * This file is GPLv2 as found in COPYING. 7 */ 8 9#include <linux/ieee80211.h> 10#include <linux/nl80211.h> 11#include <linux/rtnetlink.h> 12#include <linux/slab.h> 13#include <net/net_namespace.h> 14#include <linux/rcupdate.h> 15#include <linux/if_ether.h> 16#include <net/cfg80211.h> 17#include "ieee80211_i.h" 18#include "driver-ops.h" 19#include "cfg.h" 20#include "rate.h" 21#include "mesh.h" 22 23static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 24 const char *name, 25 enum nl80211_iftype type, 26 u32 *flags, 27 struct vif_params *params) 28{ 29 struct ieee80211_local *local = wiphy_priv(wiphy); 30 struct wireless_dev *wdev; 31 struct ieee80211_sub_if_data *sdata; 32 int err; 33 34 err = ieee80211_if_add(local, name, &wdev, type, params); 35 if (err) 36 return ERR_PTR(err); 37 38 if (type == NL80211_IFTYPE_MONITOR && flags) { 39 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 40 sdata->u.mntr_flags = *flags; 41 } 42 43 return wdev; 44} 45 46static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 47{ 48 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 49 50 return 0; 51} 52 53static int ieee80211_change_iface(struct wiphy *wiphy, 54 struct net_device *dev, 55 enum nl80211_iftype type, u32 *flags, 56 struct vif_params *params) 57{ 58 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 59 int ret; 60 61 ret = ieee80211_if_change_type(sdata, type); 62 if (ret) 63 return ret; 64 65 if (type == NL80211_IFTYPE_AP_VLAN && 66 params && params->use_4addr == 0) 67 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 68 else if (type == NL80211_IFTYPE_STATION && 69 params && params->use_4addr >= 0) 70 sdata->u.mgd.use_4addr = params->use_4addr; 71 72 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) { 73 struct ieee80211_local *local = sdata->local; 74 75 if (ieee80211_sdata_running(sdata)) { 76 u32 mask = MONITOR_FLAG_COOK_FRAMES | 77 MONITOR_FLAG_ACTIVE; 78 79 /* 80 * Prohibit MONITOR_FLAG_COOK_FRAMES and 81 * MONITOR_FLAG_ACTIVE to be changed while the 82 * interface is up. 83 * Else we would need to add a lot of cruft 84 * to update everything: 85 * cooked_mntrs, monitor and all fif_* counters 86 * reconfigure hardware 87 */ 88 if ((*flags & mask) != (sdata->u.mntr_flags & mask)) 89 return -EBUSY; 90 91 ieee80211_adjust_monitor_flags(sdata, -1); 92 sdata->u.mntr_flags = *flags; 93 ieee80211_adjust_monitor_flags(sdata, 1); 94 95 ieee80211_configure_filter(local); 96 } else { 97 /* 98 * Because the interface is down, ieee80211_do_stop 99 * and ieee80211_do_open take care of "everything" 100 * mentioned in the comment above. 101 */ 102 sdata->u.mntr_flags = *flags; 103 } 104 } 105 106 return 0; 107} 108 109static int ieee80211_start_p2p_device(struct wiphy *wiphy, 110 struct wireless_dev *wdev) 111{ 112 return ieee80211_do_open(wdev, true); 113} 114 115static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 116 struct wireless_dev *wdev) 117{ 118 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 119} 120 121static int ieee80211_set_noack_map(struct wiphy *wiphy, 122 struct net_device *dev, 123 u16 noack_map) 124{ 125 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 126 127 sdata->noack_map = noack_map; 128 return 0; 129} 130 131static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 132 u8 key_idx, bool pairwise, const u8 *mac_addr, 133 struct key_params *params) 134{ 135 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 136 struct ieee80211_local *local = sdata->local; 137 struct sta_info *sta = NULL; 138 const struct ieee80211_cipher_scheme *cs = NULL; 139 struct ieee80211_key *key; 140 int err; 141 142 if (!ieee80211_sdata_running(sdata)) 143 return -ENETDOWN; 144 145 /* reject WEP and TKIP keys if WEP failed to initialize */ 146 switch (params->cipher) { 147 case WLAN_CIPHER_SUITE_WEP40: 148 case WLAN_CIPHER_SUITE_TKIP: 149 case WLAN_CIPHER_SUITE_WEP104: 150 if (IS_ERR(local->wep_tx_tfm)) 151 return -EINVAL; 152 break; 153 case WLAN_CIPHER_SUITE_CCMP: 154 case WLAN_CIPHER_SUITE_AES_CMAC: 155 case WLAN_CIPHER_SUITE_GCMP: 156 break; 157 default: 158 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); 159 break; 160 } 161 162 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 163 params->key, params->seq_len, params->seq, 164 cs); 165 if (IS_ERR(key)) 166 return PTR_ERR(key); 167 168 if (pairwise) 169 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 170 171 mutex_lock(&local->sta_mtx); 172 173 if (mac_addr) { 174 if (ieee80211_vif_is_mesh(&sdata->vif)) 175 sta = sta_info_get(sdata, mac_addr); 176 else 177 sta = sta_info_get_bss(sdata, mac_addr); 178 /* 179 * The ASSOC test makes sure the driver is ready to 180 * receive the key. When wpa_supplicant has roamed 181 * using FT, it attempts to set the key before 182 * association has completed, this rejects that attempt 183 * so it will set the key again after assocation. 184 * 185 * TODO: accept the key if we have a station entry and 186 * add it to the device after the station. 187 */ 188 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 189 ieee80211_key_free_unused(key); 190 err = -ENOENT; 191 goto out_unlock; 192 } 193 } 194 195 switch (sdata->vif.type) { 196 case NL80211_IFTYPE_STATION: 197 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 198 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 199 break; 200 case NL80211_IFTYPE_AP: 201 case NL80211_IFTYPE_AP_VLAN: 202 /* Keys without a station are used for TX only */ 203 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP)) 204 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 205 break; 206 case NL80211_IFTYPE_ADHOC: 207 /* no MFP (yet) */ 208 break; 209 case NL80211_IFTYPE_MESH_POINT: 210#ifdef CONFIG_MAC80211_MESH 211 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 212 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 213 break; 214#endif 215 case NL80211_IFTYPE_WDS: 216 case NL80211_IFTYPE_MONITOR: 217 case NL80211_IFTYPE_P2P_DEVICE: 218 case NL80211_IFTYPE_UNSPECIFIED: 219 case NUM_NL80211_IFTYPES: 220 case NL80211_IFTYPE_P2P_CLIENT: 221 case NL80211_IFTYPE_P2P_GO: 222 /* shouldn't happen */ 223 WARN_ON_ONCE(1); 224 break; 225 } 226 227 if (sta) 228 sta->cipher_scheme = cs; 229 230 err = ieee80211_key_link(key, sdata, sta); 231 232 out_unlock: 233 mutex_unlock(&local->sta_mtx); 234 235 return err; 236} 237 238static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 239 u8 key_idx, bool pairwise, const u8 *mac_addr) 240{ 241 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 242 struct ieee80211_local *local = sdata->local; 243 struct sta_info *sta; 244 struct ieee80211_key *key = NULL; 245 int ret; 246 247 mutex_lock(&local->sta_mtx); 248 mutex_lock(&local->key_mtx); 249 250 if (mac_addr) { 251 ret = -ENOENT; 252 253 sta = sta_info_get_bss(sdata, mac_addr); 254 if (!sta) 255 goto out_unlock; 256 257 if (pairwise) 258 key = key_mtx_dereference(local, sta->ptk[key_idx]); 259 else 260 key = key_mtx_dereference(local, sta->gtk[key_idx]); 261 } else 262 key = key_mtx_dereference(local, sdata->keys[key_idx]); 263 264 if (!key) { 265 ret = -ENOENT; 266 goto out_unlock; 267 } 268 269 ieee80211_key_free(key, true); 270 271 ret = 0; 272 out_unlock: 273 mutex_unlock(&local->key_mtx); 274 mutex_unlock(&local->sta_mtx); 275 276 return ret; 277} 278 279static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 280 u8 key_idx, bool pairwise, const u8 *mac_addr, 281 void *cookie, 282 void (*callback)(void *cookie, 283 struct key_params *params)) 284{ 285 struct ieee80211_sub_if_data *sdata; 286 struct sta_info *sta = NULL; 287 u8 seq[6] = {0}; 288 struct key_params params; 289 struct ieee80211_key *key = NULL; 290 u64 pn64; 291 u32 iv32; 292 u16 iv16; 293 int err = -ENOENT; 294 295 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 296 297 rcu_read_lock(); 298 299 if (mac_addr) { 300 sta = sta_info_get_bss(sdata, mac_addr); 301 if (!sta) 302 goto out; 303 304 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 305 key = rcu_dereference(sta->ptk[key_idx]); 306 else if (!pairwise && 307 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) 308 key = rcu_dereference(sta->gtk[key_idx]); 309 } else 310 key = rcu_dereference(sdata->keys[key_idx]); 311 312 if (!key) 313 goto out; 314 315 memset(¶ms, 0, sizeof(params)); 316 317 params.cipher = key->conf.cipher; 318 319 switch (key->conf.cipher) { 320 case WLAN_CIPHER_SUITE_TKIP: 321 iv32 = key->u.tkip.tx.iv32; 322 iv16 = key->u.tkip.tx.iv16; 323 324 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) 325 drv_get_tkip_seq(sdata->local, 326 key->conf.hw_key_idx, 327 &iv32, &iv16); 328 329 seq[0] = iv16 & 0xff; 330 seq[1] = (iv16 >> 8) & 0xff; 331 seq[2] = iv32 & 0xff; 332 seq[3] = (iv32 >> 8) & 0xff; 333 seq[4] = (iv32 >> 16) & 0xff; 334 seq[5] = (iv32 >> 24) & 0xff; 335 params.seq = seq; 336 params.seq_len = 6; 337 break; 338 case WLAN_CIPHER_SUITE_CCMP: 339 pn64 = atomic64_read(&key->u.ccmp.tx_pn); 340 seq[0] = pn64; 341 seq[1] = pn64 >> 8; 342 seq[2] = pn64 >> 16; 343 seq[3] = pn64 >> 24; 344 seq[4] = pn64 >> 32; 345 seq[5] = pn64 >> 40; 346 params.seq = seq; 347 params.seq_len = 6; 348 break; 349 case WLAN_CIPHER_SUITE_AES_CMAC: 350 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn); 351 seq[0] = pn64; 352 seq[1] = pn64 >> 8; 353 seq[2] = pn64 >> 16; 354 seq[3] = pn64 >> 24; 355 seq[4] = pn64 >> 32; 356 seq[5] = pn64 >> 40; 357 params.seq = seq; 358 params.seq_len = 6; 359 break; 360 } 361 362 params.key = key->conf.key; 363 params.key_len = key->conf.keylen; 364 365 callback(cookie, ¶ms); 366 err = 0; 367 368 out: 369 rcu_read_unlock(); 370 return err; 371} 372 373static int ieee80211_config_default_key(struct wiphy *wiphy, 374 struct net_device *dev, 375 u8 key_idx, bool uni, 376 bool multi) 377{ 378 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 379 380 ieee80211_set_default_key(sdata, key_idx, uni, multi); 381 382 return 0; 383} 384 385static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 386 struct net_device *dev, 387 u8 key_idx) 388{ 389 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 390 391 ieee80211_set_default_mgmt_key(sdata, key_idx); 392 393 return 0; 394} 395 396void sta_set_rate_info_tx(struct sta_info *sta, 397 const struct ieee80211_tx_rate *rate, 398 struct rate_info *rinfo) 399{ 400 rinfo->flags = 0; 401 if (rate->flags & IEEE80211_TX_RC_MCS) { 402 rinfo->flags |= RATE_INFO_FLAGS_MCS; 403 rinfo->mcs = rate->idx; 404 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 405 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 406 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 407 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 408 } else { 409 struct ieee80211_supported_band *sband; 410 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 411 u16 brate; 412 413 sband = sta->local->hw.wiphy->bands[ 414 ieee80211_get_sdata_band(sta->sdata)]; 415 brate = sband->bitrates[rate->idx].bitrate; 416 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 417 } 418 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 419 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; 420 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 421 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH; 422 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 423 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH; 424 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 425 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 426} 427 428void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo) 429{ 430 rinfo->flags = 0; 431 432 if (sta->last_rx_rate_flag & RX_FLAG_HT) { 433 rinfo->flags |= RATE_INFO_FLAGS_MCS; 434 rinfo->mcs = sta->last_rx_rate_idx; 435 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) { 436 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 437 rinfo->nss = sta->last_rx_rate_vht_nss; 438 rinfo->mcs = sta->last_rx_rate_idx; 439 } else { 440 struct ieee80211_supported_band *sband; 441 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 442 u16 brate; 443 444 sband = sta->local->hw.wiphy->bands[ 445 ieee80211_get_sdata_band(sta->sdata)]; 446 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate; 447 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 448 } 449 450 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ) 451 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; 452 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI) 453 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 454 if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80MHZ) 455 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH; 456 if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80P80MHZ) 457 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH; 458 if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_160MHZ) 459 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH; 460} 461 462static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) 463{ 464 struct ieee80211_sub_if_data *sdata = sta->sdata; 465 struct ieee80211_local *local = sdata->local; 466 struct timespec uptime; 467 u64 packets = 0; 468 int i, ac; 469 470 sinfo->generation = sdata->local->sta_generation; 471 472 sinfo->filled = STATION_INFO_INACTIVE_TIME | 473 STATION_INFO_RX_BYTES64 | 474 STATION_INFO_TX_BYTES64 | 475 STATION_INFO_RX_PACKETS | 476 STATION_INFO_TX_PACKETS | 477 STATION_INFO_TX_RETRIES | 478 STATION_INFO_TX_FAILED | 479 STATION_INFO_TX_BITRATE | 480 STATION_INFO_RX_BITRATE | 481 STATION_INFO_RX_DROP_MISC | 482 STATION_INFO_BSS_PARAM | 483 STATION_INFO_CONNECTED_TIME | 484 STATION_INFO_STA_FLAGS | 485 STATION_INFO_BEACON_LOSS_COUNT; 486 487 do_posix_clock_monotonic_gettime(&uptime); 488 sinfo->connected_time = uptime.tv_sec - sta->last_connected; 489 490 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx); 491 sinfo->tx_bytes = 0; 492 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 493 sinfo->tx_bytes += sta->tx_bytes[ac]; 494 packets += sta->tx_packets[ac]; 495 } 496 sinfo->tx_packets = packets; 497 sinfo->rx_bytes = sta->rx_bytes; 498 sinfo->rx_packets = sta->rx_packets; 499 sinfo->tx_retries = sta->tx_retry_count; 500 sinfo->tx_failed = sta->tx_retry_failed; 501 sinfo->rx_dropped_misc = sta->rx_dropped; 502 sinfo->beacon_loss_count = sta->beacon_loss_count; 503 504 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) || 505 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) { 506 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG; 507 if (!local->ops->get_rssi || 508 drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal)) 509 sinfo->signal = (s8)sta->last_signal; 510 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal); 511 } 512 if (sta->chains) { 513 sinfo->filled |= STATION_INFO_CHAIN_SIGNAL | 514 STATION_INFO_CHAIN_SIGNAL_AVG; 515 516 sinfo->chains = sta->chains; 517 for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) { 518 sinfo->chain_signal[i] = sta->chain_signal_last[i]; 519 sinfo->chain_signal_avg[i] = 520 (s8) -ewma_read(&sta->chain_signal_avg[i]); 521 } 522 } 523 524 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate); 525 sta_set_rate_info_rx(sta, &sinfo->rxrate); 526 527 if (ieee80211_vif_is_mesh(&sdata->vif)) { 528#ifdef CONFIG_MAC80211_MESH 529 sinfo->filled |= STATION_INFO_LLID | 530 STATION_INFO_PLID | 531 STATION_INFO_PLINK_STATE | 532 STATION_INFO_LOCAL_PM | 533 STATION_INFO_PEER_PM | 534 STATION_INFO_NONPEER_PM; 535 536 sinfo->llid = sta->llid; 537 sinfo->plid = sta->plid; 538 sinfo->plink_state = sta->plink_state; 539 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) { 540 sinfo->filled |= STATION_INFO_T_OFFSET; 541 sinfo->t_offset = sta->t_offset; 542 } 543 sinfo->local_pm = sta->local_pm; 544 sinfo->peer_pm = sta->peer_pm; 545 sinfo->nonpeer_pm = sta->nonpeer_pm; 546#endif 547 } 548 549 sinfo->bss_param.flags = 0; 550 if (sdata->vif.bss_conf.use_cts_prot) 551 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT; 552 if (sdata->vif.bss_conf.use_short_preamble) 553 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE; 554 if (sdata->vif.bss_conf.use_short_slot) 555 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME; 556 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period; 557 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int; 558 559 sinfo->sta_flags.set = 0; 560 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | 561 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | 562 BIT(NL80211_STA_FLAG_WME) | 563 BIT(NL80211_STA_FLAG_MFP) | 564 BIT(NL80211_STA_FLAG_AUTHENTICATED) | 565 BIT(NL80211_STA_FLAG_ASSOCIATED) | 566 BIT(NL80211_STA_FLAG_TDLS_PEER); 567 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 568 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED); 569 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE)) 570 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); 571 if (test_sta_flag(sta, WLAN_STA_WME)) 572 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME); 573 if (test_sta_flag(sta, WLAN_STA_MFP)) 574 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP); 575 if (test_sta_flag(sta, WLAN_STA_AUTH)) 576 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED); 577 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 578 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 579 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) 580 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER); 581} 582 583static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = { 584 "rx_packets", "rx_bytes", "wep_weak_iv_count", 585 "rx_duplicates", "rx_fragments", "rx_dropped", 586 "tx_packets", "tx_bytes", "tx_fragments", 587 "tx_filtered", "tx_retry_failed", "tx_retries", 588 "beacon_loss", "sta_state", "txrate", "rxrate", "signal", 589 "channel", "noise", "ch_time", "ch_time_busy", 590 "ch_time_ext_busy", "ch_time_rx", "ch_time_tx" 591}; 592#define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats) 593 594static int ieee80211_get_et_sset_count(struct wiphy *wiphy, 595 struct net_device *dev, 596 int sset) 597{ 598 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 599 int rv = 0; 600 601 if (sset == ETH_SS_STATS) 602 rv += STA_STATS_LEN; 603 604 rv += drv_get_et_sset_count(sdata, sset); 605 606 if (rv == 0) 607 return -EOPNOTSUPP; 608 return rv; 609} 610 611static void ieee80211_get_et_stats(struct wiphy *wiphy, 612 struct net_device *dev, 613 struct ethtool_stats *stats, 614 u64 *data) 615{ 616 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 617 struct ieee80211_chanctx_conf *chanctx_conf; 618 struct ieee80211_channel *channel; 619 struct sta_info *sta; 620 struct ieee80211_local *local = sdata->local; 621 struct station_info sinfo; 622 struct survey_info survey; 623 int i, q; 624#define STA_STATS_SURVEY_LEN 7 625 626 memset(data, 0, sizeof(u64) * STA_STATS_LEN); 627 628#define ADD_STA_STATS(sta) \ 629 do { \ 630 data[i++] += sta->rx_packets; \ 631 data[i++] += sta->rx_bytes; \ 632 data[i++] += sta->wep_weak_iv_count; \ 633 data[i++] += sta->num_duplicates; \ 634 data[i++] += sta->rx_fragments; \ 635 data[i++] += sta->rx_dropped; \ 636 \ 637 data[i++] += sinfo.tx_packets; \ 638 data[i++] += sinfo.tx_bytes; \ 639 data[i++] += sta->tx_fragments; \ 640 data[i++] += sta->tx_filtered_count; \ 641 data[i++] += sta->tx_retry_failed; \ 642 data[i++] += sta->tx_retry_count; \ 643 data[i++] += sta->beacon_loss_count; \ 644 } while (0) 645 646 /* For Managed stations, find the single station based on BSSID 647 * and use that. For interface types, iterate through all available 648 * stations and add stats for any station that is assigned to this 649 * network device. 650 */ 651 652 mutex_lock(&local->sta_mtx); 653 654 if (sdata->vif.type == NL80211_IFTYPE_STATION) { 655 sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid); 656 657 if (!(sta && !WARN_ON(sta->sdata->dev != dev))) 658 goto do_survey; 659 660 sinfo.filled = 0; 661 sta_set_sinfo(sta, &sinfo); 662 663 i = 0; 664 ADD_STA_STATS(sta); 665 666 data[i++] = sta->sta_state; 667 668 669 if (sinfo.filled & STATION_INFO_TX_BITRATE) 670 data[i] = 100000 * 671 cfg80211_calculate_bitrate(&sinfo.txrate); 672 i++; 673 if (sinfo.filled & STATION_INFO_RX_BITRATE) 674 data[i] = 100000 * 675 cfg80211_calculate_bitrate(&sinfo.rxrate); 676 i++; 677 678 if (sinfo.filled & STATION_INFO_SIGNAL_AVG) 679 data[i] = (u8)sinfo.signal_avg; 680 i++; 681 } else { 682 list_for_each_entry(sta, &local->sta_list, list) { 683 /* Make sure this station belongs to the proper dev */ 684 if (sta->sdata->dev != dev) 685 continue; 686 687 sinfo.filled = 0; 688 sta_set_sinfo(sta, &sinfo); 689 i = 0; 690 ADD_STA_STATS(sta); 691 } 692 } 693 694do_survey: 695 i = STA_STATS_LEN - STA_STATS_SURVEY_LEN; 696 /* Get survey stats for current channel */ 697 survey.filled = 0; 698 699 rcu_read_lock(); 700 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 701 if (chanctx_conf) 702 channel = chanctx_conf->def.chan; 703 else 704 channel = NULL; 705 rcu_read_unlock(); 706 707 if (channel) { 708 q = 0; 709 do { 710 survey.filled = 0; 711 if (drv_get_survey(local, q, &survey) != 0) { 712 survey.filled = 0; 713 break; 714 } 715 q++; 716 } while (channel != survey.channel); 717 } 718 719 if (survey.filled) 720 data[i++] = survey.channel->center_freq; 721 else 722 data[i++] = 0; 723 if (survey.filled & SURVEY_INFO_NOISE_DBM) 724 data[i++] = (u8)survey.noise; 725 else 726 data[i++] = -1LL; 727 if (survey.filled & SURVEY_INFO_CHANNEL_TIME) 728 data[i++] = survey.channel_time; 729 else 730 data[i++] = -1LL; 731 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY) 732 data[i++] = survey.channel_time_busy; 733 else 734 data[i++] = -1LL; 735 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) 736 data[i++] = survey.channel_time_ext_busy; 737 else 738 data[i++] = -1LL; 739 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX) 740 data[i++] = survey.channel_time_rx; 741 else 742 data[i++] = -1LL; 743 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX) 744 data[i++] = survey.channel_time_tx; 745 else 746 data[i++] = -1LL; 747 748 mutex_unlock(&local->sta_mtx); 749 750 if (WARN_ON(i != STA_STATS_LEN)) 751 return; 752 753 drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN])); 754} 755 756static void ieee80211_get_et_strings(struct wiphy *wiphy, 757 struct net_device *dev, 758 u32 sset, u8 *data) 759{ 760 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 761 int sz_sta_stats = 0; 762 763 if (sset == ETH_SS_STATS) { 764 sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats); 765 memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats); 766 } 767 drv_get_et_strings(sdata, sset, &(data[sz_sta_stats])); 768} 769 770static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 771 int idx, u8 *mac, struct station_info *sinfo) 772{ 773 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 774 struct ieee80211_local *local = sdata->local; 775 struct sta_info *sta; 776 int ret = -ENOENT; 777 778 mutex_lock(&local->sta_mtx); 779 780 sta = sta_info_get_by_idx(sdata, idx); 781 if (sta) { 782 ret = 0; 783 memcpy(mac, sta->sta.addr, ETH_ALEN); 784 sta_set_sinfo(sta, sinfo); 785 } 786 787 mutex_unlock(&local->sta_mtx); 788 789 return ret; 790} 791 792static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 793 int idx, struct survey_info *survey) 794{ 795 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 796 797 return drv_get_survey(local, idx, survey); 798} 799 800static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 801 u8 *mac, struct station_info *sinfo) 802{ 803 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 804 struct ieee80211_local *local = sdata->local; 805 struct sta_info *sta; 806 int ret = -ENOENT; 807 808 mutex_lock(&local->sta_mtx); 809 810 sta = sta_info_get_bss(sdata, mac); 811 if (sta) { 812 ret = 0; 813 sta_set_sinfo(sta, sinfo); 814 } 815 816 mutex_unlock(&local->sta_mtx); 817 818 return ret; 819} 820 821static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 822 struct cfg80211_chan_def *chandef) 823{ 824 struct ieee80211_local *local = wiphy_priv(wiphy); 825 struct ieee80211_sub_if_data *sdata; 826 int ret = 0; 827 828 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 829 return 0; 830 831 mutex_lock(&local->mtx); 832 mutex_lock(&local->iflist_mtx); 833 if (local->use_chanctx) { 834 sdata = rcu_dereference_protected( 835 local->monitor_sdata, 836 lockdep_is_held(&local->iflist_mtx)); 837 if (sdata) { 838 ieee80211_vif_release_channel(sdata); 839 ret = ieee80211_vif_use_channel(sdata, chandef, 840 IEEE80211_CHANCTX_EXCLUSIVE); 841 } 842 } else if (local->open_count == local->monitors) { 843 local->_oper_chandef = *chandef; 844 ieee80211_hw_config(local, 0); 845 } 846 847 if (ret == 0) 848 local->monitor_chandef = *chandef; 849 mutex_unlock(&local->iflist_mtx); 850 mutex_unlock(&local->mtx); 851 852 return ret; 853} 854 855static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 856 const u8 *resp, size_t resp_len) 857{ 858 struct probe_resp *new, *old; 859 860 if (!resp || !resp_len) 861 return 1; 862 863 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 864 865 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 866 if (!new) 867 return -ENOMEM; 868 869 new->len = resp_len; 870 memcpy(new->data, resp, resp_len); 871 872 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 873 if (old) 874 kfree_rcu(old, rcu_head); 875 876 return 0; 877} 878 879static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 880 struct cfg80211_beacon_data *params) 881{ 882 struct beacon_data *new, *old; 883 int new_head_len, new_tail_len; 884 int size, err; 885 u32 changed = BSS_CHANGED_BEACON; 886 887 old = sdata_dereference(sdata->u.ap.beacon, sdata); 888 889 890 /* Need to have a beacon head if we don't have one yet */ 891 if (!params->head && !old) 892 return -EINVAL; 893 894 /* new or old head? */ 895 if (params->head) 896 new_head_len = params->head_len; 897 else 898 new_head_len = old->head_len; 899 900 /* new or old tail? */ 901 if (params->tail || !old) 902 /* params->tail_len will be zero for !params->tail */ 903 new_tail_len = params->tail_len; 904 else 905 new_tail_len = old->tail_len; 906 907 size = sizeof(*new) + new_head_len + new_tail_len; 908 909 new = kzalloc(size, GFP_KERNEL); 910 if (!new) 911 return -ENOMEM; 912 913 /* start filling the new info now */ 914 915 /* 916 * pointers go into the block we allocated, 917 * memory is | beacon_data | head | tail | 918 */ 919 new->head = ((u8 *) new) + sizeof(*new); 920 new->tail = new->head + new_head_len; 921 new->head_len = new_head_len; 922 new->tail_len = new_tail_len; 923 924 /* copy in head */ 925 if (params->head) 926 memcpy(new->head, params->head, new_head_len); 927 else 928 memcpy(new->head, old->head, new_head_len); 929 930 /* copy in optional tail */ 931 if (params->tail) 932 memcpy(new->tail, params->tail, new_tail_len); 933 else 934 if (old) 935 memcpy(new->tail, old->tail, new_tail_len); 936 937 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 938 params->probe_resp_len); 939 if (err < 0) 940 return err; 941 if (err == 0) 942 changed |= BSS_CHANGED_AP_PROBE_RESP; 943 944 rcu_assign_pointer(sdata->u.ap.beacon, new); 945 946 if (old) 947 kfree_rcu(old, rcu_head); 948 949 return changed; 950} 951 952static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 953 struct cfg80211_ap_settings *params) 954{ 955 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 956 struct ieee80211_local *local = sdata->local; 957 struct beacon_data *old; 958 struct ieee80211_sub_if_data *vlan; 959 u32 changed = BSS_CHANGED_BEACON_INT | 960 BSS_CHANGED_BEACON_ENABLED | 961 BSS_CHANGED_BEACON | 962 BSS_CHANGED_SSID | 963 BSS_CHANGED_P2P_PS; 964 int err; 965 966 old = sdata_dereference(sdata->u.ap.beacon, sdata); 967 if (old) 968 return -EALREADY; 969 970 /* TODO: make hostapd tell us what it wants */ 971 sdata->smps_mode = IEEE80211_SMPS_OFF; 972 sdata->needed_rx_chains = sdata->local->rx_chains; 973 974 mutex_lock(&local->mtx); 975 sdata->radar_required = params->radar_required; 976 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 977 IEEE80211_CHANCTX_SHARED); 978 mutex_unlock(&local->mtx); 979 if (err) 980 return err; 981 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 982 983 /* 984 * Apply control port protocol, this allows us to 985 * not encrypt dynamic WEP control frames. 986 */ 987 sdata->control_port_protocol = params->crypto.control_port_ethertype; 988 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 989 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 990 ¶ms->crypto, 991 sdata->vif.type); 992 993 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 994 vlan->control_port_protocol = 995 params->crypto.control_port_ethertype; 996 vlan->control_port_no_encrypt = 997 params->crypto.control_port_no_encrypt; 998 vlan->encrypt_headroom = 999 ieee80211_cs_headroom(sdata->local, 1000 ¶ms->crypto, 1001 vlan->vif.type); 1002 } 1003 1004 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 1005 sdata->vif.bss_conf.dtim_period = params->dtim_period; 1006 sdata->vif.bss_conf.enable_beacon = true; 1007 1008 sdata->vif.bss_conf.ssid_len = params->ssid_len; 1009 if (params->ssid_len) 1010 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 1011 params->ssid_len); 1012 sdata->vif.bss_conf.hidden_ssid = 1013 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1014 1015 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 1016 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 1017 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 1018 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1019 if (params->p2p_opp_ps) 1020 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1021 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1022 1023 err = ieee80211_assign_beacon(sdata, ¶ms->beacon); 1024 if (err < 0) { 1025 ieee80211_vif_release_channel(sdata); 1026 return err; 1027 } 1028 changed |= err; 1029 1030 err = drv_start_ap(sdata->local, sdata); 1031 if (err) { 1032 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1033 1034 if (old) 1035 kfree_rcu(old, rcu_head); 1036 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1037 ieee80211_vif_release_channel(sdata); 1038 return err; 1039 } 1040 1041 ieee80211_recalc_dtim(local, sdata); 1042 ieee80211_bss_info_change_notify(sdata, changed); 1043 1044 netif_carrier_on(dev); 1045 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1046 netif_carrier_on(vlan->dev); 1047 1048 return 0; 1049} 1050 1051static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1052 struct cfg80211_beacon_data *params) 1053{ 1054 struct ieee80211_sub_if_data *sdata; 1055 struct beacon_data *old; 1056 int err; 1057 1058 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1059 sdata_assert_lock(sdata); 1060 1061 /* don't allow changing the beacon while CSA is in place - offset 1062 * of channel switch counter may change 1063 */ 1064 if (sdata->vif.csa_active) 1065 return -EBUSY; 1066 1067 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1068 if (!old) 1069 return -ENOENT; 1070 1071 err = ieee80211_assign_beacon(sdata, params); 1072 if (err < 0) 1073 return err; 1074 ieee80211_bss_info_change_notify(sdata, err); 1075 return 0; 1076} 1077 1078static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1079{ 1080 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1081 struct ieee80211_sub_if_data *vlan; 1082 struct ieee80211_local *local = sdata->local; 1083 struct beacon_data *old_beacon; 1084 struct probe_resp *old_probe_resp; 1085 struct cfg80211_chan_def chandef; 1086 1087 sdata_assert_lock(sdata); 1088 1089 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1090 if (!old_beacon) 1091 return -ENOENT; 1092 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1093 1094 /* abort any running channel switch */ 1095 sdata->vif.csa_active = false; 1096 kfree(sdata->u.ap.next_beacon); 1097 sdata->u.ap.next_beacon = NULL; 1098 1099 /* turn off carrier for this interface and dependent VLANs */ 1100 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1101 netif_carrier_off(vlan->dev); 1102 netif_carrier_off(dev); 1103 1104 /* remove beacon and probe response */ 1105 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1106 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1107 kfree_rcu(old_beacon, rcu_head); 1108 if (old_probe_resp) 1109 kfree_rcu(old_probe_resp, rcu_head); 1110 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF; 1111 1112 __sta_info_flush(sdata, true); 1113 ieee80211_free_keys(sdata, true); 1114 1115 sdata->vif.bss_conf.enable_beacon = false; 1116 sdata->vif.bss_conf.ssid_len = 0; 1117 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1118 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1119 1120 if (sdata->wdev.cac_started) { 1121 chandef = sdata->vif.bss_conf.chandef; 1122 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1123 cfg80211_cac_event(sdata->dev, &chandef, 1124 NL80211_RADAR_CAC_ABORTED, 1125 GFP_KERNEL); 1126 } 1127 1128 drv_stop_ap(sdata->local, sdata); 1129 1130 /* free all potentially still buffered bcast frames */ 1131 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1132 skb_queue_purge(&sdata->u.ap.ps.bc_buf); 1133 1134 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1135 mutex_lock(&local->mtx); 1136 ieee80211_vif_release_channel(sdata); 1137 mutex_unlock(&local->mtx); 1138 1139 return 0; 1140} 1141 1142/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */ 1143struct iapp_layer2_update { 1144 u8 da[ETH_ALEN]; /* broadcast */ 1145 u8 sa[ETH_ALEN]; /* STA addr */ 1146 __be16 len; /* 6 */ 1147 u8 dsap; /* 0 */ 1148 u8 ssap; /* 0 */ 1149 u8 control; 1150 u8 xid_info[3]; 1151} __packed; 1152 1153static void ieee80211_send_layer2_update(struct sta_info *sta) 1154{ 1155 struct iapp_layer2_update *msg; 1156 struct sk_buff *skb; 1157 1158 /* Send Level 2 Update Frame to update forwarding tables in layer 2 1159 * bridge devices */ 1160 1161 skb = dev_alloc_skb(sizeof(*msg)); 1162 if (!skb) 1163 return; 1164 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg)); 1165 1166 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID) 1167 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */ 1168 1169 eth_broadcast_addr(msg->da); 1170 memcpy(msg->sa, sta->sta.addr, ETH_ALEN); 1171 msg->len = htons(6); 1172 msg->dsap = 0; 1173 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */ 1174 msg->control = 0xaf; /* XID response lsb.1111F101. 1175 * F=0 (no poll command; unsolicited frame) */ 1176 msg->xid_info[0] = 0x81; /* XID format identifier */ 1177 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */ 1178 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */ 1179 1180 skb->dev = sta->sdata->dev; 1181 skb->protocol = eth_type_trans(skb, sta->sdata->dev); 1182 memset(skb->cb, 0, sizeof(skb->cb)); 1183 netif_rx_ni(skb); 1184} 1185 1186static int sta_apply_auth_flags(struct ieee80211_local *local, 1187 struct sta_info *sta, 1188 u32 mask, u32 set) 1189{ 1190 int ret; 1191 1192 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1193 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1194 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1195 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1196 if (ret) 1197 return ret; 1198 } 1199 1200 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1201 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1202 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1203 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1204 if (ret) 1205 return ret; 1206 } 1207 1208 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1209 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1210 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1211 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1212 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1213 else 1214 ret = 0; 1215 if (ret) 1216 return ret; 1217 } 1218 1219 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1220 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1221 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1222 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1223 if (ret) 1224 return ret; 1225 } 1226 1227 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1228 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1229 test_sta_flag(sta, WLAN_STA_AUTH)) { 1230 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1231 if (ret) 1232 return ret; 1233 } 1234 1235 return 0; 1236} 1237 1238static int sta_apply_parameters(struct ieee80211_local *local, 1239 struct sta_info *sta, 1240 struct station_parameters *params) 1241{ 1242 int ret = 0; 1243 struct ieee80211_supported_band *sband; 1244 struct ieee80211_sub_if_data *sdata = sta->sdata; 1245 enum ieee80211_band band = ieee80211_get_sdata_band(sdata); 1246 u32 mask, set; 1247 1248 sband = local->hw.wiphy->bands[band]; 1249 1250 mask = params->sta_flags_mask; 1251 set = params->sta_flags_set; 1252 1253 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1254 /* 1255 * In mesh mode, ASSOCIATED isn't part of the nl80211 1256 * API but must follow AUTHENTICATED for driver state. 1257 */ 1258 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1259 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1260 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1261 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1262 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1263 /* 1264 * TDLS -- everything follows authorized, but 1265 * only becoming authorized is possible, not 1266 * going back 1267 */ 1268 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1269 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1270 BIT(NL80211_STA_FLAG_ASSOCIATED); 1271 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1272 BIT(NL80211_STA_FLAG_ASSOCIATED); 1273 } 1274 } 1275 1276 ret = sta_apply_auth_flags(local, sta, mask, set); 1277 if (ret) 1278 return ret; 1279 1280 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1281 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1282 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1283 else 1284 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1285 } 1286 1287 if (mask & BIT(NL80211_STA_FLAG_WME)) { 1288 if (set & BIT(NL80211_STA_FLAG_WME)) { 1289 set_sta_flag(sta, WLAN_STA_WME); 1290 sta->sta.wme = true; 1291 } else { 1292 clear_sta_flag(sta, WLAN_STA_WME); 1293 sta->sta.wme = false; 1294 } 1295 } 1296 1297 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1298 if (set & BIT(NL80211_STA_FLAG_MFP)) 1299 set_sta_flag(sta, WLAN_STA_MFP); 1300 else 1301 clear_sta_flag(sta, WLAN_STA_MFP); 1302 } 1303 1304 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1305 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1306 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1307 else 1308 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1309 } 1310 1311 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1312 sta->sta.uapsd_queues = params->uapsd_queues; 1313 sta->sta.max_sp = params->max_sp; 1314 } 1315 1316 /* 1317 * cfg80211 validates this (1-2007) and allows setting the AID 1318 * only when creating a new station entry 1319 */ 1320 if (params->aid) 1321 sta->sta.aid = params->aid; 1322 1323 /* 1324 * Some of the following updates would be racy if called on an 1325 * existing station, via ieee80211_change_station(). However, 1326 * all such changes are rejected by cfg80211 except for updates 1327 * changing the supported rates on an existing but not yet used 1328 * TDLS peer. 1329 */ 1330 1331 if (params->listen_interval >= 0) 1332 sta->listen_interval = params->listen_interval; 1333 1334 if (params->supported_rates) { 1335 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1336 sband, params->supported_rates, 1337 params->supported_rates_len, 1338 &sta->sta.supp_rates[band]); 1339 } 1340 1341 if (params->ht_capa) 1342 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1343 params->ht_capa, sta); 1344 1345 if (params->vht_capa) 1346 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1347 params->vht_capa, sta); 1348 1349 if (params->opmode_notif_used) { 1350 /* returned value is only needed for rc update, but the 1351 * rc isn't initialized here yet, so ignore it 1352 */ 1353 __ieee80211_vht_handle_opmode(sdata, sta, 1354 params->opmode_notif, 1355 band, false); 1356 } 1357 1358 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1359#ifdef CONFIG_MAC80211_MESH 1360 u32 changed = 0; 1361 1362 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1363 switch (params->plink_state) { 1364 case NL80211_PLINK_ESTAB: 1365 if (sta->plink_state != NL80211_PLINK_ESTAB) 1366 changed = mesh_plink_inc_estab_count( 1367 sdata); 1368 sta->plink_state = params->plink_state; 1369 1370 ieee80211_mps_sta_status_update(sta); 1371 changed |= ieee80211_mps_set_sta_local_pm(sta, 1372 sdata->u.mesh.mshcfg.power_mode); 1373 break; 1374 case NL80211_PLINK_LISTEN: 1375 case NL80211_PLINK_BLOCKED: 1376 case NL80211_PLINK_OPN_SNT: 1377 case NL80211_PLINK_OPN_RCVD: 1378 case NL80211_PLINK_CNF_RCVD: 1379 case NL80211_PLINK_HOLDING: 1380 if (sta->plink_state == NL80211_PLINK_ESTAB) 1381 changed = mesh_plink_dec_estab_count( 1382 sdata); 1383 sta->plink_state = params->plink_state; 1384 1385 ieee80211_mps_sta_status_update(sta); 1386 changed |= ieee80211_mps_set_sta_local_pm(sta, 1387 NL80211_MESH_POWER_UNKNOWN); 1388 break; 1389 default: 1390 /* nothing */ 1391 break; 1392 } 1393 } 1394 1395 switch (params->plink_action) { 1396 case NL80211_PLINK_ACTION_NO_ACTION: 1397 /* nothing */ 1398 break; 1399 case NL80211_PLINK_ACTION_OPEN: 1400 changed |= mesh_plink_open(sta); 1401 break; 1402 case NL80211_PLINK_ACTION_BLOCK: 1403 changed |= mesh_plink_block(sta); 1404 break; 1405 } 1406 1407 if (params->local_pm) 1408 changed |= 1409 ieee80211_mps_set_sta_local_pm(sta, 1410 params->local_pm); 1411 ieee80211_mbss_info_change_notify(sdata, changed); 1412#endif 1413 } 1414 1415 return 0; 1416} 1417 1418static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1419 u8 *mac, struct station_parameters *params) 1420{ 1421 struct ieee80211_local *local = wiphy_priv(wiphy); 1422 struct sta_info *sta; 1423 struct ieee80211_sub_if_data *sdata; 1424 int err; 1425 int layer2_update; 1426 1427 if (params->vlan) { 1428 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1429 1430 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1431 sdata->vif.type != NL80211_IFTYPE_AP) 1432 return -EINVAL; 1433 } else 1434 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1435 1436 if (ether_addr_equal(mac, sdata->vif.addr)) 1437 return -EINVAL; 1438 1439 if (is_multicast_ether_addr(mac)) 1440 return -EINVAL; 1441 1442 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1443 if (!sta) 1444 return -ENOMEM; 1445 1446 /* 1447 * defaults -- if userspace wants something else we'll 1448 * change it accordingly in sta_apply_parameters() 1449 */ 1450 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) { 1451 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH); 1452 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC); 1453 } 1454 1455 err = sta_apply_parameters(local, sta, params); 1456 if (err) { 1457 sta_info_free(local, sta); 1458 return err; 1459 } 1460 1461 /* 1462 * for TDLS, rate control should be initialized only when 1463 * rates are known and station is marked authorized 1464 */ 1465 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) 1466 rate_control_rate_init(sta); 1467 1468 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 1469 sdata->vif.type == NL80211_IFTYPE_AP; 1470 1471 err = sta_info_insert_rcu(sta); 1472 if (err) { 1473 rcu_read_unlock(); 1474 return err; 1475 } 1476 1477 if (layer2_update) 1478 ieee80211_send_layer2_update(sta); 1479 1480 rcu_read_unlock(); 1481 1482 return 0; 1483} 1484 1485static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1486 u8 *mac) 1487{ 1488 struct ieee80211_sub_if_data *sdata; 1489 1490 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1491 1492 if (mac) 1493 return sta_info_destroy_addr_bss(sdata, mac); 1494 1495 sta_info_flush(sdata); 1496 return 0; 1497} 1498 1499static int ieee80211_change_station(struct wiphy *wiphy, 1500 struct net_device *dev, u8 *mac, 1501 struct station_parameters *params) 1502{ 1503 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1504 struct ieee80211_local *local = wiphy_priv(wiphy); 1505 struct sta_info *sta; 1506 struct ieee80211_sub_if_data *vlansdata; 1507 enum cfg80211_station_type statype; 1508 int err; 1509 1510 mutex_lock(&local->sta_mtx); 1511 1512 sta = sta_info_get_bss(sdata, mac); 1513 if (!sta) { 1514 err = -ENOENT; 1515 goto out_err; 1516 } 1517 1518 switch (sdata->vif.type) { 1519 case NL80211_IFTYPE_MESH_POINT: 1520 if (sdata->u.mesh.user_mpm) 1521 statype = CFG80211_STA_MESH_PEER_USER; 1522 else 1523 statype = CFG80211_STA_MESH_PEER_KERNEL; 1524 break; 1525 case NL80211_IFTYPE_ADHOC: 1526 statype = CFG80211_STA_IBSS; 1527 break; 1528 case NL80211_IFTYPE_STATION: 1529 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1530 statype = CFG80211_STA_AP_STA; 1531 break; 1532 } 1533 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1534 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1535 else 1536 statype = CFG80211_STA_TDLS_PEER_SETUP; 1537 break; 1538 case NL80211_IFTYPE_AP: 1539 case NL80211_IFTYPE_AP_VLAN: 1540 statype = CFG80211_STA_AP_CLIENT; 1541 break; 1542 default: 1543 err = -EOPNOTSUPP; 1544 goto out_err; 1545 } 1546 1547 err = cfg80211_check_station_change(wiphy, params, statype); 1548 if (err) 1549 goto out_err; 1550 1551 if (params->vlan && params->vlan != sta->sdata->dev) { 1552 bool prev_4addr = false; 1553 bool new_4addr = false; 1554 1555 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1556 1557 if (params->vlan->ieee80211_ptr->use_4addr) { 1558 if (vlansdata->u.vlan.sta) { 1559 err = -EBUSY; 1560 goto out_err; 1561 } 1562 1563 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1564 new_4addr = true; 1565 } 1566 1567 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1568 sta->sdata->u.vlan.sta) { 1569 rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL); 1570 prev_4addr = true; 1571 } 1572 1573 sta->sdata = vlansdata; 1574 1575 if (sta->sta_state == IEEE80211_STA_AUTHORIZED && 1576 prev_4addr != new_4addr) { 1577 if (new_4addr) 1578 atomic_dec(&sta->sdata->bss->num_mcast_sta); 1579 else 1580 atomic_inc(&sta->sdata->bss->num_mcast_sta); 1581 } 1582 1583 ieee80211_send_layer2_update(sta); 1584 } 1585 1586 err = sta_apply_parameters(local, sta, params); 1587 if (err) 1588 goto out_err; 1589 1590 /* When peer becomes authorized, init rate control as well */ 1591 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1592 test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1593 rate_control_rate_init(sta); 1594 1595 mutex_unlock(&local->sta_mtx); 1596 1597 if ((sdata->vif.type == NL80211_IFTYPE_AP || 1598 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && 1599 sta->known_smps_mode != sta->sdata->bss->req_smps && 1600 test_sta_flag(sta, WLAN_STA_AUTHORIZED) && 1601 sta_info_tx_streams(sta) != 1) { 1602 ht_dbg(sta->sdata, 1603 "%pM just authorized and MIMO capable - update SMPS\n", 1604 sta->sta.addr); 1605 ieee80211_send_smps_action(sta->sdata, 1606 sta->sdata->bss->req_smps, 1607 sta->sta.addr, 1608 sta->sdata->vif.bss_conf.bssid); 1609 } 1610 1611 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1612 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1613 ieee80211_recalc_ps(local, -1); 1614 ieee80211_recalc_ps_vif(sdata); 1615 } 1616 1617 return 0; 1618out_err: 1619 mutex_unlock(&local->sta_mtx); 1620 return err; 1621} 1622 1623#ifdef CONFIG_MAC80211_MESH 1624static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1625 u8 *dst, u8 *next_hop) 1626{ 1627 struct ieee80211_sub_if_data *sdata; 1628 struct mesh_path *mpath; 1629 struct sta_info *sta; 1630 1631 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1632 1633 rcu_read_lock(); 1634 sta = sta_info_get(sdata, next_hop); 1635 if (!sta) { 1636 rcu_read_unlock(); 1637 return -ENOENT; 1638 } 1639 1640 mpath = mesh_path_add(sdata, dst); 1641 if (IS_ERR(mpath)) { 1642 rcu_read_unlock(); 1643 return PTR_ERR(mpath); 1644 } 1645 1646 mesh_path_fix_nexthop(mpath, sta); 1647 1648 rcu_read_unlock(); 1649 return 0; 1650} 1651 1652static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1653 u8 *dst) 1654{ 1655 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1656 1657 if (dst) 1658 return mesh_path_del(sdata, dst); 1659 1660 mesh_path_flush_by_iface(sdata); 1661 return 0; 1662} 1663 1664static int ieee80211_change_mpath(struct wiphy *wiphy, 1665 struct net_device *dev, 1666 u8 *dst, u8 *next_hop) 1667{ 1668 struct ieee80211_sub_if_data *sdata; 1669 struct mesh_path *mpath; 1670 struct sta_info *sta; 1671 1672 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1673 1674 rcu_read_lock(); 1675 1676 sta = sta_info_get(sdata, next_hop); 1677 if (!sta) { 1678 rcu_read_unlock(); 1679 return -ENOENT; 1680 } 1681 1682 mpath = mesh_path_lookup(sdata, dst); 1683 if (!mpath) { 1684 rcu_read_unlock(); 1685 return -ENOENT; 1686 } 1687 1688 mesh_path_fix_nexthop(mpath, sta); 1689 1690 rcu_read_unlock(); 1691 return 0; 1692} 1693 1694static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1695 struct mpath_info *pinfo) 1696{ 1697 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1698 1699 if (next_hop_sta) 1700 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1701 else 1702 memset(next_hop, 0, ETH_ALEN); 1703 1704 memset(pinfo, 0, sizeof(*pinfo)); 1705 1706 pinfo->generation = mesh_paths_generation; 1707 1708 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1709 MPATH_INFO_SN | 1710 MPATH_INFO_METRIC | 1711 MPATH_INFO_EXPTIME | 1712 MPATH_INFO_DISCOVERY_TIMEOUT | 1713 MPATH_INFO_DISCOVERY_RETRIES | 1714 MPATH_INFO_FLAGS; 1715 1716 pinfo->frame_qlen = mpath->frame_queue.qlen; 1717 pinfo->sn = mpath->sn; 1718 pinfo->metric = mpath->metric; 1719 if (time_before(jiffies, mpath->exp_time)) 1720 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1721 pinfo->discovery_timeout = 1722 jiffies_to_msecs(mpath->discovery_timeout); 1723 pinfo->discovery_retries = mpath->discovery_retries; 1724 if (mpath->flags & MESH_PATH_ACTIVE) 1725 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1726 if (mpath->flags & MESH_PATH_RESOLVING) 1727 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1728 if (mpath->flags & MESH_PATH_SN_VALID) 1729 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1730 if (mpath->flags & MESH_PATH_FIXED) 1731 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1732 if (mpath->flags & MESH_PATH_RESOLVED) 1733 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1734} 1735 1736static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1737 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1738 1739{ 1740 struct ieee80211_sub_if_data *sdata; 1741 struct mesh_path *mpath; 1742 1743 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1744 1745 rcu_read_lock(); 1746 mpath = mesh_path_lookup(sdata, dst); 1747 if (!mpath) { 1748 rcu_read_unlock(); 1749 return -ENOENT; 1750 } 1751 memcpy(dst, mpath->dst, ETH_ALEN); 1752 mpath_set_pinfo(mpath, next_hop, pinfo); 1753 rcu_read_unlock(); 1754 return 0; 1755} 1756 1757static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1758 int idx, u8 *dst, u8 *next_hop, 1759 struct mpath_info *pinfo) 1760{ 1761 struct ieee80211_sub_if_data *sdata; 1762 struct mesh_path *mpath; 1763 1764 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1765 1766 rcu_read_lock(); 1767 mpath = mesh_path_lookup_by_idx(sdata, idx); 1768 if (!mpath) { 1769 rcu_read_unlock(); 1770 return -ENOENT; 1771 } 1772 memcpy(dst, mpath->dst, ETH_ALEN); 1773 mpath_set_pinfo(mpath, next_hop, pinfo); 1774 rcu_read_unlock(); 1775 return 0; 1776} 1777 1778static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1779 struct net_device *dev, 1780 struct mesh_config *conf) 1781{ 1782 struct ieee80211_sub_if_data *sdata; 1783 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1784 1785 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1786 return 0; 1787} 1788 1789static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1790{ 1791 return (mask >> (parm-1)) & 0x1; 1792} 1793 1794static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1795 const struct mesh_setup *setup) 1796{ 1797 u8 *new_ie; 1798 const u8 *old_ie; 1799 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1800 struct ieee80211_sub_if_data, u.mesh); 1801 1802 /* allocate information elements */ 1803 new_ie = NULL; 1804 old_ie = ifmsh->ie; 1805 1806 if (setup->ie_len) { 1807 new_ie = kmemdup(setup->ie, setup->ie_len, 1808 GFP_KERNEL); 1809 if (!new_ie) 1810 return -ENOMEM; 1811 } 1812 ifmsh->ie_len = setup->ie_len; 1813 ifmsh->ie = new_ie; 1814 kfree(old_ie); 1815 1816 /* now copy the rest of the setup parameters */ 1817 ifmsh->mesh_id_len = setup->mesh_id_len; 1818 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1819 ifmsh->mesh_sp_id = setup->sync_method; 1820 ifmsh->mesh_pp_id = setup->path_sel_proto; 1821 ifmsh->mesh_pm_id = setup->path_metric; 1822 ifmsh->user_mpm = setup->user_mpm; 1823 ifmsh->mesh_auth_id = setup->auth_id; 1824 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1825 if (setup->is_authenticated) 1826 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1827 if (setup->is_secure) 1828 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1829 1830 /* mcast rate setting in Mesh Node */ 1831 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1832 sizeof(setup->mcast_rate)); 1833 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1834 1835 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1836 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1837 1838 return 0; 1839} 1840 1841static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1842 struct net_device *dev, u32 mask, 1843 const struct mesh_config *nconf) 1844{ 1845 struct mesh_config *conf; 1846 struct ieee80211_sub_if_data *sdata; 1847 struct ieee80211_if_mesh *ifmsh; 1848 1849 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1850 ifmsh = &sdata->u.mesh; 1851 1852 /* Set the config options which we are interested in setting */ 1853 conf = &(sdata->u.mesh.mshcfg); 1854 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 1855 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 1856 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 1857 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 1858 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 1859 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 1860 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 1861 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 1862 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 1863 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 1864 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 1865 conf->dot11MeshTTL = nconf->dot11MeshTTL; 1866 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 1867 conf->element_ttl = nconf->element_ttl; 1868 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 1869 if (ifmsh->user_mpm) 1870 return -EBUSY; 1871 conf->auto_open_plinks = nconf->auto_open_plinks; 1872 } 1873 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 1874 conf->dot11MeshNbrOffsetMaxNeighbor = 1875 nconf->dot11MeshNbrOffsetMaxNeighbor; 1876 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 1877 conf->dot11MeshHWMPmaxPREQretries = 1878 nconf->dot11MeshHWMPmaxPREQretries; 1879 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 1880 conf->path_refresh_time = nconf->path_refresh_time; 1881 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 1882 conf->min_discovery_timeout = nconf->min_discovery_timeout; 1883 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 1884 conf->dot11MeshHWMPactivePathTimeout = 1885 nconf->dot11MeshHWMPactivePathTimeout; 1886 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 1887 conf->dot11MeshHWMPpreqMinInterval = 1888 nconf->dot11MeshHWMPpreqMinInterval; 1889 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 1890 conf->dot11MeshHWMPperrMinInterval = 1891 nconf->dot11MeshHWMPperrMinInterval; 1892 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 1893 mask)) 1894 conf->dot11MeshHWMPnetDiameterTraversalTime = 1895 nconf->dot11MeshHWMPnetDiameterTraversalTime; 1896 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 1897 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 1898 ieee80211_mesh_root_setup(ifmsh); 1899 } 1900 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 1901 /* our current gate announcement implementation rides on root 1902 * announcements, so require this ifmsh to also be a root node 1903 * */ 1904 if (nconf->dot11MeshGateAnnouncementProtocol && 1905 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 1906 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 1907 ieee80211_mesh_root_setup(ifmsh); 1908 } 1909 conf->dot11MeshGateAnnouncementProtocol = 1910 nconf->dot11MeshGateAnnouncementProtocol; 1911 } 1912 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 1913 conf->dot11MeshHWMPRannInterval = 1914 nconf->dot11MeshHWMPRannInterval; 1915 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 1916 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 1917 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 1918 /* our RSSI threshold implementation is supported only for 1919 * devices that report signal in dBm. 1920 */ 1921 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM)) 1922 return -ENOTSUPP; 1923 conf->rssi_threshold = nconf->rssi_threshold; 1924 } 1925 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 1926 conf->ht_opmode = nconf->ht_opmode; 1927 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 1928 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 1929 } 1930 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 1931 conf->dot11MeshHWMPactivePathToRootTimeout = 1932 nconf->dot11MeshHWMPactivePathToRootTimeout; 1933 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 1934 conf->dot11MeshHWMProotInterval = 1935 nconf->dot11MeshHWMProotInterval; 1936 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 1937 conf->dot11MeshHWMPconfirmationInterval = 1938 nconf->dot11MeshHWMPconfirmationInterval; 1939 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 1940 conf->power_mode = nconf->power_mode; 1941 ieee80211_mps_local_status_update(sdata); 1942 } 1943 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 1944 conf->dot11MeshAwakeWindowDuration = 1945 nconf->dot11MeshAwakeWindowDuration; 1946 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 1947 conf->plink_timeout = nconf->plink_timeout; 1948 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 1949 return 0; 1950} 1951 1952static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 1953 const struct mesh_config *conf, 1954 const struct mesh_setup *setup) 1955{ 1956 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1957 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 1958 int err; 1959 1960 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 1961 err = copy_mesh_setup(ifmsh, setup); 1962 if (err) 1963 return err; 1964 1965 /* can mesh use other SMPS modes? */ 1966 sdata->smps_mode = IEEE80211_SMPS_OFF; 1967 sdata->needed_rx_chains = sdata->local->rx_chains; 1968 1969 mutex_lock(&sdata->local->mtx); 1970 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 1971 IEEE80211_CHANCTX_SHARED); 1972 mutex_unlock(&sdata->local->mtx); 1973 if (err) 1974 return err; 1975 1976 return ieee80211_start_mesh(sdata); 1977} 1978 1979static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 1980{ 1981 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1982 1983 ieee80211_stop_mesh(sdata); 1984 mutex_lock(&sdata->local->mtx); 1985 ieee80211_vif_release_channel(sdata); 1986 mutex_unlock(&sdata->local->mtx); 1987 1988 return 0; 1989} 1990#endif 1991 1992static int ieee80211_change_bss(struct wiphy *wiphy, 1993 struct net_device *dev, 1994 struct bss_parameters *params) 1995{ 1996 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1997 enum ieee80211_band band; 1998 u32 changed = 0; 1999 2000 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2001 return -ENOENT; 2002 2003 band = ieee80211_get_sdata_band(sdata); 2004 2005 if (params->use_cts_prot >= 0) { 2006 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2007 changed |= BSS_CHANGED_ERP_CTS_PROT; 2008 } 2009 if (params->use_short_preamble >= 0) { 2010 sdata->vif.bss_conf.use_short_preamble = 2011 params->use_short_preamble; 2012 changed |= BSS_CHANGED_ERP_PREAMBLE; 2013 } 2014 2015 if (!sdata->vif.bss_conf.use_short_slot && 2016 band == IEEE80211_BAND_5GHZ) { 2017 sdata->vif.bss_conf.use_short_slot = true; 2018 changed |= BSS_CHANGED_ERP_SLOT; 2019 } 2020 2021 if (params->use_short_slot_time >= 0) { 2022 sdata->vif.bss_conf.use_short_slot = 2023 params->use_short_slot_time; 2024 changed |= BSS_CHANGED_ERP_SLOT; 2025 } 2026 2027 if (params->basic_rates) { 2028 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2029 wiphy->bands[band], 2030 params->basic_rates, 2031 params->basic_rates_len, 2032 &sdata->vif.bss_conf.basic_rates); 2033 changed |= BSS_CHANGED_BASIC_RATES; 2034 } 2035 2036 if (params->ap_isolate >= 0) { 2037 if (params->ap_isolate) 2038 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2039 else 2040 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2041 } 2042 2043 if (params->ht_opmode >= 0) { 2044 sdata->vif.bss_conf.ht_operation_mode = 2045 (u16) params->ht_opmode; 2046 changed |= BSS_CHANGED_HT; 2047 } 2048 2049 if (params->p2p_ctwindow >= 0) { 2050 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2051 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2052 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2053 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2054 changed |= BSS_CHANGED_P2P_PS; 2055 } 2056 2057 if (params->p2p_opp_ps > 0) { 2058 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2059 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2060 changed |= BSS_CHANGED_P2P_PS; 2061 } else if (params->p2p_opp_ps == 0) { 2062 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2063 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2064 changed |= BSS_CHANGED_P2P_PS; 2065 } 2066 2067 ieee80211_bss_info_change_notify(sdata, changed); 2068 2069 return 0; 2070} 2071 2072static int ieee80211_set_txq_params(struct wiphy *wiphy, 2073 struct net_device *dev, 2074 struct ieee80211_txq_params *params) 2075{ 2076 struct ieee80211_local *local = wiphy_priv(wiphy); 2077 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2078 struct ieee80211_tx_queue_params p; 2079 2080 if (!local->ops->conf_tx) 2081 return -EOPNOTSUPP; 2082 2083 if (local->hw.queues < IEEE80211_NUM_ACS) 2084 return -EOPNOTSUPP; 2085 2086 memset(&p, 0, sizeof(p)); 2087 p.aifs = params->aifs; 2088 p.cw_max = params->cwmax; 2089 p.cw_min = params->cwmin; 2090 p.txop = params->txop; 2091 2092 /* 2093 * Setting tx queue params disables u-apsd because it's only 2094 * called in master mode. 2095 */ 2096 p.uapsd = false; 2097 2098 sdata->tx_conf[params->ac] = p; 2099 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2100 wiphy_debug(local->hw.wiphy, 2101 "failed to set TX queue parameters for AC %d\n", 2102 params->ac); 2103 return -EINVAL; 2104 } 2105 2106 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2107 2108 return 0; 2109} 2110 2111#ifdef CONFIG_PM 2112static int ieee80211_suspend(struct wiphy *wiphy, 2113 struct cfg80211_wowlan *wowlan) 2114{ 2115 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2116} 2117 2118static int ieee80211_resume(struct wiphy *wiphy) 2119{ 2120 return __ieee80211_resume(wiphy_priv(wiphy)); 2121} 2122#else 2123#define ieee80211_suspend NULL 2124#define ieee80211_resume NULL 2125#endif 2126 2127static int ieee80211_scan(struct wiphy *wiphy, 2128 struct cfg80211_scan_request *req) 2129{ 2130 struct ieee80211_sub_if_data *sdata; 2131 2132 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2133 2134 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2135 case NL80211_IFTYPE_STATION: 2136 case NL80211_IFTYPE_ADHOC: 2137 case NL80211_IFTYPE_MESH_POINT: 2138 case NL80211_IFTYPE_P2P_CLIENT: 2139 case NL80211_IFTYPE_P2P_DEVICE: 2140 break; 2141 case NL80211_IFTYPE_P2P_GO: 2142 if (sdata->local->ops->hw_scan) 2143 break; 2144 /* 2145 * FIXME: implement NoA while scanning in software, 2146 * for now fall through to allow scanning only when 2147 * beaconing hasn't been configured yet 2148 */ 2149 case NL80211_IFTYPE_AP: 2150 /* 2151 * If the scan has been forced (and the driver supports 2152 * forcing), don't care about being beaconing already. 2153 * This will create problems to the attached stations (e.g. all 2154 * the frames sent while scanning on other channel will be 2155 * lost) 2156 */ 2157 if (sdata->u.ap.beacon && 2158 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2159 !(req->flags & NL80211_SCAN_FLAG_AP))) 2160 return -EOPNOTSUPP; 2161 break; 2162 default: 2163 return -EOPNOTSUPP; 2164 } 2165 2166 return ieee80211_request_scan(sdata, req); 2167} 2168 2169static int 2170ieee80211_sched_scan_start(struct wiphy *wiphy, 2171 struct net_device *dev, 2172 struct cfg80211_sched_scan_request *req) 2173{ 2174 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2175 2176 if (!sdata->local->ops->sched_scan_start) 2177 return -EOPNOTSUPP; 2178 2179 return ieee80211_request_sched_scan_start(sdata, req); 2180} 2181 2182static int 2183ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev) 2184{ 2185 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2186 2187 if (!sdata->local->ops->sched_scan_stop) 2188 return -EOPNOTSUPP; 2189 2190 return ieee80211_request_sched_scan_stop(sdata); 2191} 2192 2193static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2194 struct cfg80211_auth_request *req) 2195{ 2196 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2197} 2198 2199static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2200 struct cfg80211_assoc_request *req) 2201{ 2202 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2203} 2204 2205static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2206 struct cfg80211_deauth_request *req) 2207{ 2208 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2209} 2210 2211static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2212 struct cfg80211_disassoc_request *req) 2213{ 2214 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2215} 2216 2217static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2218 struct cfg80211_ibss_params *params) 2219{ 2220 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2221} 2222 2223static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2224{ 2225 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2226} 2227 2228static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2229 int rate[IEEE80211_NUM_BANDS]) 2230{ 2231 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2232 2233 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2234 sizeof(int) * IEEE80211_NUM_BANDS); 2235 2236 return 0; 2237} 2238 2239static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2240{ 2241 struct ieee80211_local *local = wiphy_priv(wiphy); 2242 int err; 2243 2244 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2245 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2246 2247 if (err) 2248 return err; 2249 } 2250 2251 if (changed & WIPHY_PARAM_COVERAGE_CLASS) { 2252 err = drv_set_coverage_class(local, wiphy->coverage_class); 2253 2254 if (err) 2255 return err; 2256 } 2257 2258 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2259 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2260 2261 if (err) 2262 return err; 2263 } 2264 2265 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2266 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2267 return -EINVAL; 2268 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2269 } 2270 if (changed & WIPHY_PARAM_RETRY_LONG) { 2271 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2272 return -EINVAL; 2273 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2274 } 2275 if (changed & 2276 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2277 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2278 2279 return 0; 2280} 2281 2282static int ieee80211_set_tx_power(struct wiphy *wiphy, 2283 struct wireless_dev *wdev, 2284 enum nl80211_tx_power_setting type, int mbm) 2285{ 2286 struct ieee80211_local *local = wiphy_priv(wiphy); 2287 struct ieee80211_sub_if_data *sdata; 2288 2289 if (wdev) { 2290 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2291 2292 switch (type) { 2293 case NL80211_TX_POWER_AUTOMATIC: 2294 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2295 break; 2296 case NL80211_TX_POWER_LIMITED: 2297 case NL80211_TX_POWER_FIXED: 2298 if (mbm < 0 || (mbm % 100)) 2299 return -EOPNOTSUPP; 2300 sdata->user_power_level = MBM_TO_DBM(mbm); 2301 break; 2302 } 2303 2304 ieee80211_recalc_txpower(sdata); 2305 2306 return 0; 2307 } 2308 2309 switch (type) { 2310 case NL80211_TX_POWER_AUTOMATIC: 2311 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2312 break; 2313 case NL80211_TX_POWER_LIMITED: 2314 case NL80211_TX_POWER_FIXED: 2315 if (mbm < 0 || (mbm % 100)) 2316 return -EOPNOTSUPP; 2317 local->user_power_level = MBM_TO_DBM(mbm); 2318 break; 2319 } 2320 2321 mutex_lock(&local->iflist_mtx); 2322 list_for_each_entry(sdata, &local->interfaces, list) 2323 sdata->user_power_level = local->user_power_level; 2324 list_for_each_entry(sdata, &local->interfaces, list) 2325 ieee80211_recalc_txpower(sdata); 2326 mutex_unlock(&local->iflist_mtx); 2327 2328 return 0; 2329} 2330 2331static int ieee80211_get_tx_power(struct wiphy *wiphy, 2332 struct wireless_dev *wdev, 2333 int *dbm) 2334{ 2335 struct ieee80211_local *local = wiphy_priv(wiphy); 2336 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2337 2338 if (!local->use_chanctx) 2339 *dbm = local->hw.conf.power_level; 2340 else 2341 *dbm = sdata->vif.bss_conf.txpower; 2342 2343 return 0; 2344} 2345 2346static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2347 const u8 *addr) 2348{ 2349 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2350 2351 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2352 2353 return 0; 2354} 2355 2356static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2357{ 2358 struct ieee80211_local *local = wiphy_priv(wiphy); 2359 2360 drv_rfkill_poll(local); 2361} 2362 2363#ifdef CONFIG_NL80211_TESTMODE 2364static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2365 struct wireless_dev *wdev, 2366 void *data, int len) 2367{ 2368 struct ieee80211_local *local = wiphy_priv(wiphy); 2369 struct ieee80211_vif *vif = NULL; 2370 2371 if (!local->ops->testmode_cmd) 2372 return -EOPNOTSUPP; 2373 2374 if (wdev) { 2375 struct ieee80211_sub_if_data *sdata; 2376 2377 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2378 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2379 vif = &sdata->vif; 2380 } 2381 2382 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2383} 2384 2385static int ieee80211_testmode_dump(struct wiphy *wiphy, 2386 struct sk_buff *skb, 2387 struct netlink_callback *cb, 2388 void *data, int len) 2389{ 2390 struct ieee80211_local *local = wiphy_priv(wiphy); 2391 2392 if (!local->ops->testmode_dump) 2393 return -EOPNOTSUPP; 2394 2395 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2396} 2397#endif 2398 2399int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, 2400 enum ieee80211_smps_mode smps_mode) 2401{ 2402 struct sta_info *sta; 2403 enum ieee80211_smps_mode old_req; 2404 int i; 2405 2406 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) 2407 return -EINVAL; 2408 2409 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2410 return 0; 2411 2412 old_req = sdata->u.ap.req_smps; 2413 sdata->u.ap.req_smps = smps_mode; 2414 2415 /* AUTOMATIC doesn't mean much for AP - don't allow it */ 2416 if (old_req == smps_mode || 2417 smps_mode == IEEE80211_SMPS_AUTOMATIC) 2418 return 0; 2419 2420 /* If no associated stations, there's no need to do anything */ 2421 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) { 2422 sdata->smps_mode = smps_mode; 2423 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2424 return 0; 2425 } 2426 2427 ht_dbg(sdata, 2428 "SMSP %d requested in AP mode, sending Action frame to %d stations\n", 2429 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); 2430 2431 mutex_lock(&sdata->local->sta_mtx); 2432 for (i = 0; i < STA_HASH_SIZE; i++) { 2433 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i], 2434 lockdep_is_held(&sdata->local->sta_mtx)); 2435 sta; 2436 sta = rcu_dereference_protected(sta->hnext, 2437 lockdep_is_held(&sdata->local->sta_mtx))) { 2438 /* 2439 * Only stations associated to our AP and 2440 * associated VLANs 2441 */ 2442 if (sta->sdata->bss != &sdata->u.ap) 2443 continue; 2444 2445 /* This station doesn't support MIMO - skip it */ 2446 if (sta_info_tx_streams(sta) == 1) 2447 continue; 2448 2449 /* 2450 * Don't wake up a STA just to send the action frame 2451 * unless we are getting more restrictive. 2452 */ 2453 if (test_sta_flag(sta, WLAN_STA_PS_STA) && 2454 !ieee80211_smps_is_restrictive(sta->known_smps_mode, 2455 smps_mode)) { 2456 ht_dbg(sdata, 2457 "Won't send SMPS to sleeping STA %pM\n", 2458 sta->sta.addr); 2459 continue; 2460 } 2461 2462 /* 2463 * If the STA is not authorized, wait until it gets 2464 * authorized and the action frame will be sent then. 2465 */ 2466 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2467 continue; 2468 2469 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); 2470 ieee80211_send_smps_action(sdata, smps_mode, 2471 sta->sta.addr, 2472 sdata->vif.bss_conf.bssid); 2473 } 2474 } 2475 mutex_unlock(&sdata->local->sta_mtx); 2476 2477 sdata->smps_mode = smps_mode; 2478 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2479 2480 return 0; 2481} 2482 2483int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2484 enum ieee80211_smps_mode smps_mode) 2485{ 2486 const u8 *ap; 2487 enum ieee80211_smps_mode old_req; 2488 int err; 2489 2490 lockdep_assert_held(&sdata->wdev.mtx); 2491 2492 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2493 return -EINVAL; 2494 2495 old_req = sdata->u.mgd.req_smps; 2496 sdata->u.mgd.req_smps = smps_mode; 2497 2498 if (old_req == smps_mode && 2499 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2500 return 0; 2501 2502 /* 2503 * If not associated, or current association is not an HT 2504 * association, there's no need to do anything, just store 2505 * the new value until we associate. 2506 */ 2507 if (!sdata->u.mgd.associated || 2508 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2509 return 0; 2510 2511 ap = sdata->u.mgd.associated->bssid; 2512 2513 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2514 if (sdata->u.mgd.powersave) 2515 smps_mode = IEEE80211_SMPS_DYNAMIC; 2516 else 2517 smps_mode = IEEE80211_SMPS_OFF; 2518 } 2519 2520 /* send SM PS frame to AP */ 2521 err = ieee80211_send_smps_action(sdata, smps_mode, 2522 ap, ap); 2523 if (err) 2524 sdata->u.mgd.req_smps = old_req; 2525 2526 return err; 2527} 2528 2529static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2530 bool enabled, int timeout) 2531{ 2532 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2533 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2534 2535 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2536 return -EOPNOTSUPP; 2537 2538 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS)) 2539 return -EOPNOTSUPP; 2540 2541 if (enabled == sdata->u.mgd.powersave && 2542 timeout == local->dynamic_ps_forced_timeout) 2543 return 0; 2544 2545 sdata->u.mgd.powersave = enabled; 2546 local->dynamic_ps_forced_timeout = timeout; 2547 2548 /* no change, but if automatic follow powersave */ 2549 sdata_lock(sdata); 2550 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2551 sdata_unlock(sdata); 2552 2553 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS) 2554 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2555 2556 ieee80211_recalc_ps(local, -1); 2557 ieee80211_recalc_ps_vif(sdata); 2558 2559 return 0; 2560} 2561 2562static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2563 struct net_device *dev, 2564 s32 rssi_thold, u32 rssi_hyst) 2565{ 2566 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2567 struct ieee80211_vif *vif = &sdata->vif; 2568 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2569 2570 if (rssi_thold == bss_conf->cqm_rssi_thold && 2571 rssi_hyst == bss_conf->cqm_rssi_hyst) 2572 return 0; 2573 2574 bss_conf->cqm_rssi_thold = rssi_thold; 2575 bss_conf->cqm_rssi_hyst = rssi_hyst; 2576 2577 /* tell the driver upon association, unless already associated */ 2578 if (sdata->u.mgd.associated && 2579 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2580 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2581 2582 return 0; 2583} 2584 2585static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2586 struct net_device *dev, 2587 const u8 *addr, 2588 const struct cfg80211_bitrate_mask *mask) 2589{ 2590 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2591 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2592 int i, ret; 2593 2594 if (!ieee80211_sdata_running(sdata)) 2595 return -ENETDOWN; 2596 2597 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) { 2598 ret = drv_set_bitrate_mask(local, sdata, mask); 2599 if (ret) 2600 return ret; 2601 } 2602 2603 for (i = 0; i < IEEE80211_NUM_BANDS; i++) { 2604 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2605 int j; 2606 2607 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2608 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2609 sizeof(mask->control[i].ht_mcs)); 2610 2611 sdata->rc_has_mcs_mask[i] = false; 2612 if (!sband) 2613 continue; 2614 2615 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) 2616 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2617 sdata->rc_has_mcs_mask[i] = true; 2618 break; 2619 } 2620 } 2621 2622 return 0; 2623} 2624 2625static int ieee80211_start_roc_work(struct ieee80211_local *local, 2626 struct ieee80211_sub_if_data *sdata, 2627 struct ieee80211_channel *channel, 2628 unsigned int duration, u64 *cookie, 2629 struct sk_buff *txskb, 2630 enum ieee80211_roc_type type) 2631{ 2632 struct ieee80211_roc_work *roc, *tmp; 2633 bool queued = false; 2634 int ret; 2635 2636 lockdep_assert_held(&local->mtx); 2637 2638 if (local->use_chanctx && !local->ops->remain_on_channel) 2639 return -EOPNOTSUPP; 2640 2641 roc = kzalloc(sizeof(*roc), GFP_KERNEL); 2642 if (!roc) 2643 return -ENOMEM; 2644 2645 /* 2646 * If the duration is zero, then the driver 2647 * wouldn't actually do anything. Set it to 2648 * 10 for now. 2649 * 2650 * TODO: cancel the off-channel operation 2651 * when we get the SKB's TX status and 2652 * the wait time was zero before. 2653 */ 2654 if (!duration) 2655 duration = 10; 2656 2657 roc->chan = channel; 2658 roc->duration = duration; 2659 roc->req_duration = duration; 2660 roc->frame = txskb; 2661 roc->type = type; 2662 roc->mgmt_tx_cookie = (unsigned long)txskb; 2663 roc->sdata = sdata; 2664 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work); 2665 INIT_LIST_HEAD(&roc->dependents); 2666 2667 /* 2668 * cookie is either the roc cookie (for normal roc) 2669 * or the SKB (for mgmt TX) 2670 */ 2671 if (!txskb) { 2672 /* local->mtx protects this */ 2673 local->roc_cookie_counter++; 2674 roc->cookie = local->roc_cookie_counter; 2675 /* wow, you wrapped 64 bits ... more likely a bug */ 2676 if (WARN_ON(roc->cookie == 0)) { 2677 roc->cookie = 1; 2678 local->roc_cookie_counter++; 2679 } 2680 *cookie = roc->cookie; 2681 } else { 2682 *cookie = (unsigned long)txskb; 2683 } 2684 2685 /* if there's one pending or we're scanning, queue this one */ 2686 if (!list_empty(&local->roc_list) || 2687 local->scanning || local->radar_detect_enabled) 2688 goto out_check_combine; 2689 2690 /* if not HW assist, just queue & schedule work */ 2691 if (!local->ops->remain_on_channel) { 2692 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0); 2693 goto out_queue; 2694 } 2695 2696 /* otherwise actually kick it off here (for error handling) */ 2697 2698 ret = drv_remain_on_channel(local, sdata, channel, duration, type); 2699 if (ret) { 2700 kfree(roc); 2701 return ret; 2702 } 2703 2704 roc->started = true; 2705 goto out_queue; 2706 2707 out_check_combine: 2708 list_for_each_entry(tmp, &local->roc_list, list) { 2709 if (tmp->chan != channel || tmp->sdata != sdata) 2710 continue; 2711 2712 /* 2713 * Extend this ROC if possible: 2714 * 2715 * If it hasn't started yet, just increase the duration 2716 * and add the new one to the list of dependents. 2717 * If the type of the new ROC has higher priority, modify the 2718 * type of the previous one to match that of the new one. 2719 */ 2720 if (!tmp->started) { 2721 list_add_tail(&roc->list, &tmp->dependents); 2722 tmp->duration = max(tmp->duration, roc->duration); 2723 tmp->type = max(tmp->type, roc->type); 2724 queued = true; 2725 break; 2726 } 2727 2728 /* If it has already started, it's more difficult ... */ 2729 if (local->ops->remain_on_channel) { 2730 unsigned long j = jiffies; 2731 2732 /* 2733 * In the offloaded ROC case, if it hasn't begun, add 2734 * this new one to the dependent list to be handled 2735 * when the master one begins. If it has begun, 2736 * check that there's still a minimum time left and 2737 * if so, start this one, transmitting the frame, but 2738 * add it to the list directly after this one with 2739 * a reduced time so we'll ask the driver to execute 2740 * it right after finishing the previous one, in the 2741 * hope that it'll also be executed right afterwards, 2742 * effectively extending the old one. 2743 * If there's no minimum time left, just add it to the 2744 * normal list. 2745 * TODO: the ROC type is ignored here, assuming that it 2746 * is better to immediately use the current ROC. 2747 */ 2748 if (!tmp->hw_begun) { 2749 list_add_tail(&roc->list, &tmp->dependents); 2750 queued = true; 2751 break; 2752 } 2753 2754 if (time_before(j + IEEE80211_ROC_MIN_LEFT, 2755 tmp->hw_start_time + 2756 msecs_to_jiffies(tmp->duration))) { 2757 int new_dur; 2758 2759 ieee80211_handle_roc_started(roc); 2760 2761 new_dur = roc->duration - 2762 jiffies_to_msecs(tmp->hw_start_time + 2763 msecs_to_jiffies( 2764 tmp->duration) - 2765 j); 2766 2767 if (new_dur > 0) { 2768 /* add right after tmp */ 2769 list_add(&roc->list, &tmp->list); 2770 } else { 2771 list_add_tail(&roc->list, 2772 &tmp->dependents); 2773 } 2774 queued = true; 2775 } 2776 } else if (del_timer_sync(&tmp->work.timer)) { 2777 unsigned long new_end; 2778 2779 /* 2780 * In the software ROC case, cancel the timer, if 2781 * that fails then the finish work is already 2782 * queued/pending and thus we queue the new ROC 2783 * normally, if that succeeds then we can extend 2784 * the timer duration and TX the frame (if any.) 2785 */ 2786 2787 list_add_tail(&roc->list, &tmp->dependents); 2788 queued = true; 2789 2790 new_end = jiffies + msecs_to_jiffies(roc->duration); 2791 2792 /* ok, it was started & we canceled timer */ 2793 if (time_after(new_end, tmp->work.timer.expires)) 2794 mod_timer(&tmp->work.timer, new_end); 2795 else 2796 add_timer(&tmp->work.timer); 2797 2798 ieee80211_handle_roc_started(roc); 2799 } 2800 break; 2801 } 2802 2803 out_queue: 2804 if (!queued) 2805 list_add_tail(&roc->list, &local->roc_list); 2806 2807 return 0; 2808} 2809 2810static int ieee80211_remain_on_channel(struct wiphy *wiphy, 2811 struct wireless_dev *wdev, 2812 struct ieee80211_channel *chan, 2813 unsigned int duration, 2814 u64 *cookie) 2815{ 2816 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2817 struct ieee80211_local *local = sdata->local; 2818 int ret; 2819 2820 mutex_lock(&local->mtx); 2821 ret = ieee80211_start_roc_work(local, sdata, chan, 2822 duration, cookie, NULL, 2823 IEEE80211_ROC_TYPE_NORMAL); 2824 mutex_unlock(&local->mtx); 2825 2826 return ret; 2827} 2828 2829static int ieee80211_cancel_roc(struct ieee80211_local *local, 2830 u64 cookie, bool mgmt_tx) 2831{ 2832 struct ieee80211_roc_work *roc, *tmp, *found = NULL; 2833 int ret; 2834 2835 mutex_lock(&local->mtx); 2836 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) { 2837 struct ieee80211_roc_work *dep, *tmp2; 2838 2839 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) { 2840 if (!mgmt_tx && dep->cookie != cookie) 2841 continue; 2842 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie) 2843 continue; 2844 /* found dependent item -- just remove it */ 2845 list_del(&dep->list); 2846 mutex_unlock(&local->mtx); 2847 2848 ieee80211_roc_notify_destroy(dep, true); 2849 return 0; 2850 } 2851 2852 if (!mgmt_tx && roc->cookie != cookie) 2853 continue; 2854 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie) 2855 continue; 2856 2857 found = roc; 2858 break; 2859 } 2860 2861 if (!found) { 2862 mutex_unlock(&local->mtx); 2863 return -ENOENT; 2864 } 2865 2866 /* 2867 * We found the item to cancel, so do that. Note that it 2868 * may have dependents, which we also cancel (and send 2869 * the expired signal for.) Not doing so would be quite 2870 * tricky here, but we may need to fix it later. 2871 */ 2872 2873 if (local->ops->remain_on_channel) { 2874 if (found->started) { 2875 ret = drv_cancel_remain_on_channel(local); 2876 if (WARN_ON_ONCE(ret)) { 2877 mutex_unlock(&local->mtx); 2878 return ret; 2879 } 2880 } 2881 2882 list_del(&found->list); 2883 2884 if (found->started) 2885 ieee80211_start_next_roc(local); 2886 mutex_unlock(&local->mtx); 2887 2888 ieee80211_roc_notify_destroy(found, true); 2889 } else { 2890 /* work may be pending so use it all the time */ 2891 found->abort = true; 2892 ieee80211_queue_delayed_work(&local->hw, &found->work, 0); 2893 2894 mutex_unlock(&local->mtx); 2895 2896 /* work will clean up etc */ 2897 flush_delayed_work(&found->work); 2898 WARN_ON(!found->to_be_freed); 2899 kfree(found); 2900 } 2901 2902 return 0; 2903} 2904 2905static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, 2906 struct wireless_dev *wdev, 2907 u64 cookie) 2908{ 2909 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2910 struct ieee80211_local *local = sdata->local; 2911 2912 return ieee80211_cancel_roc(local, cookie, false); 2913} 2914 2915static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2916 struct net_device *dev, 2917 struct cfg80211_chan_def *chandef, 2918 u32 cac_time_ms) 2919{ 2920 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2921 struct ieee80211_local *local = sdata->local; 2922 int err; 2923 2924 mutex_lock(&local->mtx); 2925 if (!list_empty(&local->roc_list) || local->scanning) { 2926 err = -EBUSY; 2927 goto out_unlock; 2928 } 2929 2930 /* whatever, but channel contexts should not complain about that one */ 2931 sdata->smps_mode = IEEE80211_SMPS_OFF; 2932 sdata->needed_rx_chains = local->rx_chains; 2933 sdata->radar_required = true; 2934 2935 err = ieee80211_vif_use_channel(sdata, chandef, 2936 IEEE80211_CHANCTX_SHARED); 2937 if (err) 2938 goto out_unlock; 2939 2940 ieee80211_queue_delayed_work(&sdata->local->hw, 2941 &sdata->dfs_cac_timer_work, 2942 msecs_to_jiffies(cac_time_ms)); 2943 2944 out_unlock: 2945 mutex_unlock(&local->mtx); 2946 return err; 2947} 2948 2949static struct cfg80211_beacon_data * 2950cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2951{ 2952 struct cfg80211_beacon_data *new_beacon; 2953 u8 *pos; 2954 int len; 2955 2956 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2957 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2958 beacon->probe_resp_len; 2959 2960 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2961 if (!new_beacon) 2962 return NULL; 2963 2964 pos = (u8 *)(new_beacon + 1); 2965 if (beacon->head_len) { 2966 new_beacon->head_len = beacon->head_len; 2967 new_beacon->head = pos; 2968 memcpy(pos, beacon->head, beacon->head_len); 2969 pos += beacon->head_len; 2970 } 2971 if (beacon->tail_len) { 2972 new_beacon->tail_len = beacon->tail_len; 2973 new_beacon->tail = pos; 2974 memcpy(pos, beacon->tail, beacon->tail_len); 2975 pos += beacon->tail_len; 2976 } 2977 if (beacon->beacon_ies_len) { 2978 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2979 new_beacon->beacon_ies = pos; 2980 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2981 pos += beacon->beacon_ies_len; 2982 } 2983 if (beacon->proberesp_ies_len) { 2984 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2985 new_beacon->proberesp_ies = pos; 2986 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2987 pos += beacon->proberesp_ies_len; 2988 } 2989 if (beacon->assocresp_ies_len) { 2990 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2991 new_beacon->assocresp_ies = pos; 2992 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2993 pos += beacon->assocresp_ies_len; 2994 } 2995 if (beacon->probe_resp_len) { 2996 new_beacon->probe_resp_len = beacon->probe_resp_len; 2997 beacon->probe_resp = pos; 2998 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 2999 pos += beacon->probe_resp_len; 3000 } 3001 3002 return new_beacon; 3003} 3004 3005void ieee80211_csa_finish(struct ieee80211_vif *vif) 3006{ 3007 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3008 3009 ieee80211_queue_work(&sdata->local->hw, 3010 &sdata->csa_finalize_work); 3011} 3012EXPORT_SYMBOL(ieee80211_csa_finish); 3013 3014static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3015{ 3016 struct ieee80211_local *local = sdata->local; 3017 int err, changed = 0; 3018 3019 sdata_assert_lock(sdata); 3020 3021 mutex_lock(&local->mtx); 3022 sdata->radar_required = sdata->csa_radar_required; 3023 err = ieee80211_vif_change_channel(sdata, &changed); 3024 mutex_unlock(&local->mtx); 3025 if (WARN_ON(err < 0)) 3026 return; 3027 3028 if (!local->use_chanctx) { 3029 local->_oper_chandef = sdata->csa_chandef; 3030 ieee80211_hw_config(local, 0); 3031 } 3032 3033 sdata->vif.csa_active = false; 3034 switch (sdata->vif.type) { 3035 case NL80211_IFTYPE_AP: 3036 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon); 3037 kfree(sdata->u.ap.next_beacon); 3038 sdata->u.ap.next_beacon = NULL; 3039 3040 if (err < 0) 3041 return; 3042 changed |= err; 3043 break; 3044 case NL80211_IFTYPE_ADHOC: 3045 err = ieee80211_ibss_finish_csa(sdata); 3046 if (err < 0) 3047 return; 3048 changed |= err; 3049 break; 3050#ifdef CONFIG_MAC80211_MESH 3051 case NL80211_IFTYPE_MESH_POINT: 3052 err = ieee80211_mesh_finish_csa(sdata); 3053 if (err < 0) 3054 return; 3055 changed |= err; 3056 break; 3057#endif 3058 default: 3059 WARN_ON(1); 3060 return; 3061 } 3062 3063 ieee80211_bss_info_change_notify(sdata, changed); 3064 3065 ieee80211_wake_queues_by_reason(&sdata->local->hw, 3066 IEEE80211_MAX_QUEUE_MAP, 3067 IEEE80211_QUEUE_STOP_REASON_CSA); 3068 3069 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3070} 3071 3072void ieee80211_csa_finalize_work(struct work_struct *work) 3073{ 3074 struct ieee80211_sub_if_data *sdata = 3075 container_of(work, struct ieee80211_sub_if_data, 3076 csa_finalize_work); 3077 3078 sdata_lock(sdata); 3079 /* AP might have been stopped while waiting for the lock. */ 3080 if (!sdata->vif.csa_active) 3081 goto unlock; 3082 3083 if (!ieee80211_sdata_running(sdata)) 3084 goto unlock; 3085 3086 ieee80211_csa_finalize(sdata); 3087 3088unlock: 3089 sdata_unlock(sdata); 3090} 3091 3092int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3093 struct cfg80211_csa_settings *params) 3094{ 3095 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3096 struct ieee80211_local *local = sdata->local; 3097 struct ieee80211_chanctx_conf *chanctx_conf; 3098 struct ieee80211_chanctx *chanctx; 3099 struct ieee80211_if_mesh __maybe_unused *ifmsh; 3100 int err, num_chanctx, changed = 0; 3101 3102 sdata_assert_lock(sdata); 3103 3104 if (!list_empty(&local->roc_list) || local->scanning) 3105 return -EBUSY; 3106 3107 if (sdata->wdev.cac_started) 3108 return -EBUSY; 3109 3110 if (cfg80211_chandef_identical(¶ms->chandef, 3111 &sdata->vif.bss_conf.chandef)) 3112 return -EINVAL; 3113 3114 rcu_read_lock(); 3115 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3116 if (!chanctx_conf) { 3117 rcu_read_unlock(); 3118 return -EBUSY; 3119 } 3120 3121 /* don't handle for multi-VIF cases */ 3122 chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); 3123 if (chanctx->refcount > 1) { 3124 rcu_read_unlock(); 3125 return -EBUSY; 3126 } 3127 num_chanctx = 0; 3128 list_for_each_entry_rcu(chanctx, &local->chanctx_list, list) 3129 num_chanctx++; 3130 rcu_read_unlock(); 3131 3132 if (num_chanctx > 1) 3133 return -EBUSY; 3134 3135 /* don't allow another channel switch if one is already active. */ 3136 if (sdata->vif.csa_active) 3137 return -EBUSY; 3138 3139 switch (sdata->vif.type) { 3140 case NL80211_IFTYPE_AP: 3141 sdata->u.ap.next_beacon = 3142 cfg80211_beacon_dup(¶ms->beacon_after); 3143 if (!sdata->u.ap.next_beacon) 3144 return -ENOMEM; 3145 3146 /* 3147 * With a count of 0, we don't have to wait for any 3148 * TBTT before switching, so complete the CSA 3149 * immediately. In theory, with a count == 1 we 3150 * should delay the switch until just before the next 3151 * TBTT, but that would complicate things so we switch 3152 * immediately too. If we would delay the switch 3153 * until the next TBTT, we would have to set the probe 3154 * response here. 3155 * 3156 * TODO: A channel switch with count <= 1 without 3157 * sending a CSA action frame is kind of useless, 3158 * because the clients won't know we're changing 3159 * channels. The action frame must be implemented 3160 * either here or in the userspace. 3161 */ 3162 if (params->count <= 1) 3163 break; 3164 3165 sdata->csa_counter_offset_beacon = 3166 params->counter_offset_beacon; 3167 sdata->csa_counter_offset_presp = params->counter_offset_presp; 3168 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa); 3169 if (err < 0) { 3170 kfree(sdata->u.ap.next_beacon); 3171 return err; 3172 } 3173 changed |= err; 3174 3175 break; 3176 case NL80211_IFTYPE_ADHOC: 3177 if (!sdata->vif.bss_conf.ibss_joined) 3178 return -EINVAL; 3179 3180 if (params->chandef.width != sdata->u.ibss.chandef.width) 3181 return -EINVAL; 3182 3183 switch (params->chandef.width) { 3184 case NL80211_CHAN_WIDTH_40: 3185 if (cfg80211_get_chandef_type(¶ms->chandef) != 3186 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3187 return -EINVAL; 3188 case NL80211_CHAN_WIDTH_5: 3189 case NL80211_CHAN_WIDTH_10: 3190 case NL80211_CHAN_WIDTH_20_NOHT: 3191 case NL80211_CHAN_WIDTH_20: 3192 break; 3193 default: 3194 return -EINVAL; 3195 } 3196 3197 /* changes into another band are not supported */ 3198 if (sdata->u.ibss.chandef.chan->band != 3199 params->chandef.chan->band) 3200 return -EINVAL; 3201 3202 /* see comments in the NL80211_IFTYPE_AP block */ 3203 if (params->count > 1) { 3204 err = ieee80211_ibss_csa_beacon(sdata, params); 3205 if (err < 0) 3206 return err; 3207 changed |= err; 3208 } 3209 3210 ieee80211_send_action_csa(sdata, params); 3211 3212 break; 3213#ifdef CONFIG_MAC80211_MESH 3214 case NL80211_IFTYPE_MESH_POINT: 3215 ifmsh = &sdata->u.mesh; 3216 3217 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3218 return -EINVAL; 3219 3220 /* changes into another band are not supported */ 3221 if (sdata->vif.bss_conf.chandef.chan->band != 3222 params->chandef.chan->band) 3223 return -EINVAL; 3224 3225 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3226 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3227 if (!ifmsh->pre_value) 3228 ifmsh->pre_value = 1; 3229 else 3230 ifmsh->pre_value++; 3231 } 3232 3233 /* see comments in the NL80211_IFTYPE_AP block */ 3234 if (params->count > 1) { 3235 err = ieee80211_mesh_csa_beacon(sdata, params); 3236 if (err < 0) { 3237 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3238 return err; 3239 } 3240 changed |= err; 3241 } 3242 3243 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3244 ieee80211_send_action_csa(sdata, params); 3245 3246 break; 3247#endif 3248 default: 3249 return -EOPNOTSUPP; 3250 } 3251 3252 sdata->csa_radar_required = params->radar_required; 3253 3254 if (params->block_tx) 3255 ieee80211_stop_queues_by_reason(&local->hw, 3256 IEEE80211_MAX_QUEUE_MAP, 3257 IEEE80211_QUEUE_STOP_REASON_CSA); 3258 3259 sdata->csa_chandef = params->chandef; 3260 sdata->vif.csa_active = true; 3261 3262 if (changed) { 3263 ieee80211_bss_info_change_notify(sdata, changed); 3264 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3265 } else { 3266 /* if the beacon didn't change, we can finalize immediately */ 3267 ieee80211_csa_finalize(sdata); 3268 } 3269 3270 return 0; 3271} 3272 3273static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 3274 struct cfg80211_mgmt_tx_params *params, 3275 u64 *cookie) 3276{ 3277 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3278 struct ieee80211_local *local = sdata->local; 3279 struct sk_buff *skb; 3280 struct sta_info *sta; 3281 const struct ieee80211_mgmt *mgmt = (void *)params->buf; 3282 bool need_offchan = false; 3283 u32 flags; 3284 int ret; 3285 3286 if (params->dont_wait_for_ack) 3287 flags = IEEE80211_TX_CTL_NO_ACK; 3288 else 3289 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX | 3290 IEEE80211_TX_CTL_REQ_TX_STATUS; 3291 3292 if (params->no_cck) 3293 flags |= IEEE80211_TX_CTL_NO_CCK_RATE; 3294 3295 switch (sdata->vif.type) { 3296 case NL80211_IFTYPE_ADHOC: 3297 if (!sdata->vif.bss_conf.ibss_joined) 3298 need_offchan = true; 3299 /* fall through */ 3300#ifdef CONFIG_MAC80211_MESH 3301 case NL80211_IFTYPE_MESH_POINT: 3302 if (ieee80211_vif_is_mesh(&sdata->vif) && 3303 !sdata->u.mesh.mesh_id_len) 3304 need_offchan = true; 3305 /* fall through */ 3306#endif 3307 case NL80211_IFTYPE_AP: 3308 case NL80211_IFTYPE_AP_VLAN: 3309 case NL80211_IFTYPE_P2P_GO: 3310 if (sdata->vif.type != NL80211_IFTYPE_ADHOC && 3311 !ieee80211_vif_is_mesh(&sdata->vif) && 3312 !rcu_access_pointer(sdata->bss->beacon)) 3313 need_offchan = true; 3314 if (!ieee80211_is_action(mgmt->frame_control) || 3315 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC || 3316 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED || 3317 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT) 3318 break; 3319 rcu_read_lock(); 3320 sta = sta_info_get(sdata, mgmt->da); 3321 rcu_read_unlock(); 3322 if (!sta) 3323 return -ENOLINK; 3324 break; 3325 case NL80211_IFTYPE_STATION: 3326 case NL80211_IFTYPE_P2P_CLIENT: 3327 if (!sdata->u.mgd.associated) 3328 need_offchan = true; 3329 break; 3330 case NL80211_IFTYPE_P2P_DEVICE: 3331 need_offchan = true; 3332 break; 3333 default: 3334 return -EOPNOTSUPP; 3335 } 3336 3337 /* configurations requiring offchan cannot work if no channel has been 3338 * specified 3339 */ 3340 if (need_offchan && !params->chan) 3341 return -EINVAL; 3342 3343 mutex_lock(&local->mtx); 3344 3345 /* Check if the operating channel is the requested channel */ 3346 if (!need_offchan) { 3347 struct ieee80211_chanctx_conf *chanctx_conf; 3348 3349 rcu_read_lock(); 3350 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3351 3352 if (chanctx_conf) { 3353 need_offchan = params->chan && 3354 (params->chan != 3355 chanctx_conf->def.chan); 3356 } else if (!params->chan) { 3357 ret = -EINVAL; 3358 rcu_read_unlock(); 3359 goto out_unlock; 3360 } else { 3361 need_offchan = true; 3362 } 3363 rcu_read_unlock(); 3364 } 3365 3366 if (need_offchan && !params->offchan) { 3367 ret = -EBUSY; 3368 goto out_unlock; 3369 } 3370 3371 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len); 3372 if (!skb) { 3373 ret = -ENOMEM; 3374 goto out_unlock; 3375 } 3376 skb_reserve(skb, local->hw.extra_tx_headroom); 3377 3378 memcpy(skb_put(skb, params->len), params->buf, params->len); 3379 3380 IEEE80211_SKB_CB(skb)->flags = flags; 3381 3382 skb->dev = sdata->dev; 3383 3384 if (!need_offchan) { 3385 *cookie = (unsigned long) skb; 3386 ieee80211_tx_skb(sdata, skb); 3387 ret = 0; 3388 goto out_unlock; 3389 } 3390 3391 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN | 3392 IEEE80211_TX_INTFL_OFFCHAN_TX_OK; 3393 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL) 3394 IEEE80211_SKB_CB(skb)->hw_queue = 3395 local->hw.offchannel_tx_hw_queue; 3396 3397 /* This will handle all kinds of coalescing and immediate TX */ 3398 ret = ieee80211_start_roc_work(local, sdata, params->chan, 3399 params->wait, cookie, skb, 3400 IEEE80211_ROC_TYPE_MGMT_TX); 3401 if (ret) 3402 kfree_skb(skb); 3403 out_unlock: 3404 mutex_unlock(&local->mtx); 3405 return ret; 3406} 3407 3408static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, 3409 struct wireless_dev *wdev, 3410 u64 cookie) 3411{ 3412 struct ieee80211_local *local = wiphy_priv(wiphy); 3413 3414 return ieee80211_cancel_roc(local, cookie, true); 3415} 3416 3417static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3418 struct wireless_dev *wdev, 3419 u16 frame_type, bool reg) 3420{ 3421 struct ieee80211_local *local = wiphy_priv(wiphy); 3422 3423 switch (frame_type) { 3424 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3425 if (reg) 3426 local->probe_req_reg++; 3427 else 3428 local->probe_req_reg--; 3429 3430 if (!local->open_count) 3431 break; 3432 3433 ieee80211_queue_work(&local->hw, &local->reconfig_filter); 3434 break; 3435 default: 3436 break; 3437 } 3438} 3439 3440static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3441{ 3442 struct ieee80211_local *local = wiphy_priv(wiphy); 3443 3444 if (local->started) 3445 return -EOPNOTSUPP; 3446 3447 return drv_set_antenna(local, tx_ant, rx_ant); 3448} 3449 3450static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3451{ 3452 struct ieee80211_local *local = wiphy_priv(wiphy); 3453 3454 return drv_get_antenna(local, tx_ant, rx_ant); 3455} 3456 3457static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx) 3458{ 3459 struct ieee80211_local *local = wiphy_priv(wiphy); 3460 3461 return drv_set_ringparam(local, tx, rx); 3462} 3463 3464static void ieee80211_get_ringparam(struct wiphy *wiphy, 3465 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max) 3466{ 3467 struct ieee80211_local *local = wiphy_priv(wiphy); 3468 3469 drv_get_ringparam(local, tx, tx_max, rx, rx_max); 3470} 3471 3472static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3473 struct net_device *dev, 3474 struct cfg80211_gtk_rekey_data *data) 3475{ 3476 struct ieee80211_local *local = wiphy_priv(wiphy); 3477 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3478 3479 if (!local->ops->set_rekey_data) 3480 return -EOPNOTSUPP; 3481 3482 drv_set_rekey_data(local, sdata, data); 3483 3484 return 0; 3485} 3486 3487static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb) 3488{ 3489 u8 *pos = (void *)skb_put(skb, 7); 3490 3491 *pos++ = WLAN_EID_EXT_CAPABILITY; 3492 *pos++ = 5; /* len */ 3493 *pos++ = 0x0; 3494 *pos++ = 0x0; 3495 *pos++ = 0x0; 3496 *pos++ = 0x0; 3497 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED; 3498} 3499 3500static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata) 3501{ 3502 struct ieee80211_local *local = sdata->local; 3503 u16 capab; 3504 3505 capab = 0; 3506 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ) 3507 return capab; 3508 3509 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)) 3510 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; 3511 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE)) 3512 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; 3513 3514 return capab; 3515} 3516 3517static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr, 3518 u8 *peer, u8 *bssid) 3519{ 3520 struct ieee80211_tdls_lnkie *lnkid; 3521 3522 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie)); 3523 3524 lnkid->ie_type = WLAN_EID_LINK_ID; 3525 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2; 3526 3527 memcpy(lnkid->bssid, bssid, ETH_ALEN); 3528 memcpy(lnkid->init_sta, src_addr, ETH_ALEN); 3529 memcpy(lnkid->resp_sta, peer, ETH_ALEN); 3530} 3531 3532static int 3533ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev, 3534 u8 *peer, u8 action_code, u8 dialog_token, 3535 u16 status_code, struct sk_buff *skb) 3536{ 3537 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3538 enum ieee80211_band band = ieee80211_get_sdata_band(sdata); 3539 struct ieee80211_tdls_data *tf; 3540 3541 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u)); 3542 3543 memcpy(tf->da, peer, ETH_ALEN); 3544 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN); 3545 tf->ether_type = cpu_to_be16(ETH_P_TDLS); 3546 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE; 3547 3548 switch (action_code) { 3549 case WLAN_TDLS_SETUP_REQUEST: 3550 tf->category = WLAN_CATEGORY_TDLS; 3551 tf->action_code = WLAN_TDLS_SETUP_REQUEST; 3552 3553 skb_put(skb, sizeof(tf->u.setup_req)); 3554 tf->u.setup_req.dialog_token = dialog_token; 3555 tf->u.setup_req.capability = 3556 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); 3557 3558 ieee80211_add_srates_ie(sdata, skb, false, band); 3559 ieee80211_add_ext_srates_ie(sdata, skb, false, band); 3560 ieee80211_tdls_add_ext_capab(skb); 3561 break; 3562 case WLAN_TDLS_SETUP_RESPONSE: 3563 tf->category = WLAN_CATEGORY_TDLS; 3564 tf->action_code = WLAN_TDLS_SETUP_RESPONSE; 3565 3566 skb_put(skb, sizeof(tf->u.setup_resp)); 3567 tf->u.setup_resp.status_code = cpu_to_le16(status_code); 3568 tf->u.setup_resp.dialog_token = dialog_token; 3569 tf->u.setup_resp.capability = 3570 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); 3571 3572 ieee80211_add_srates_ie(sdata, skb, false, band); 3573 ieee80211_add_ext_srates_ie(sdata, skb, false, band); 3574 ieee80211_tdls_add_ext_capab(skb); 3575 break; 3576 case WLAN_TDLS_SETUP_CONFIRM: 3577 tf->category = WLAN_CATEGORY_TDLS; 3578 tf->action_code = WLAN_TDLS_SETUP_CONFIRM; 3579 3580 skb_put(skb, sizeof(tf->u.setup_cfm)); 3581 tf->u.setup_cfm.status_code = cpu_to_le16(status_code); 3582 tf->u.setup_cfm.dialog_token = dialog_token; 3583 break; 3584 case WLAN_TDLS_TEARDOWN: 3585 tf->category = WLAN_CATEGORY_TDLS; 3586 tf->action_code = WLAN_TDLS_TEARDOWN; 3587 3588 skb_put(skb, sizeof(tf->u.teardown)); 3589 tf->u.teardown.reason_code = cpu_to_le16(status_code); 3590 break; 3591 case WLAN_TDLS_DISCOVERY_REQUEST: 3592 tf->category = WLAN_CATEGORY_TDLS; 3593 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST; 3594 3595 skb_put(skb, sizeof(tf->u.discover_req)); 3596 tf->u.discover_req.dialog_token = dialog_token; 3597 break; 3598 default: 3599 return -EINVAL; 3600 } 3601 3602 return 0; 3603} 3604 3605static int 3606ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev, 3607 u8 *peer, u8 action_code, u8 dialog_token, 3608 u16 status_code, struct sk_buff *skb) 3609{ 3610 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3611 enum ieee80211_band band = ieee80211_get_sdata_band(sdata); 3612 struct ieee80211_mgmt *mgmt; 3613 3614 mgmt = (void *)skb_put(skb, 24); 3615 memset(mgmt, 0, 24); 3616 memcpy(mgmt->da, peer, ETH_ALEN); 3617 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); 3618 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN); 3619 3620 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | 3621 IEEE80211_STYPE_ACTION); 3622 3623 switch (action_code) { 3624 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: 3625 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp)); 3626 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC; 3627 mgmt->u.action.u.tdls_discover_resp.action_code = 3628 WLAN_PUB_ACTION_TDLS_DISCOVER_RES; 3629 mgmt->u.action.u.tdls_discover_resp.dialog_token = 3630 dialog_token; 3631 mgmt->u.action.u.tdls_discover_resp.capability = 3632 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); 3633 3634 ieee80211_add_srates_ie(sdata, skb, false, band); 3635 ieee80211_add_ext_srates_ie(sdata, skb, false, band); 3636 ieee80211_tdls_add_ext_capab(skb); 3637 break; 3638 default: 3639 return -EINVAL; 3640 } 3641 3642 return 0; 3643} 3644 3645static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 3646 u8 *peer, u8 action_code, u8 dialog_token, 3647 u16 status_code, u32 peer_capability, 3648 const u8 *extra_ies, size_t extra_ies_len) 3649{ 3650 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3651 struct ieee80211_local *local = sdata->local; 3652 struct sk_buff *skb = NULL; 3653 bool send_direct; 3654 int ret; 3655 3656 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) 3657 return -ENOTSUPP; 3658 3659 /* make sure we are in managed mode, and associated */ 3660 if (sdata->vif.type != NL80211_IFTYPE_STATION || 3661 !sdata->u.mgd.associated) 3662 return -EINVAL; 3663 3664 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n", 3665 action_code, peer); 3666 3667 skb = dev_alloc_skb(local->hw.extra_tx_headroom + 3668 max(sizeof(struct ieee80211_mgmt), 3669 sizeof(struct ieee80211_tdls_data)) + 3670 50 + /* supported rates */ 3671 7 + /* ext capab */ 3672 extra_ies_len + 3673 sizeof(struct ieee80211_tdls_lnkie)); 3674 if (!skb) 3675 return -ENOMEM; 3676 3677 skb_reserve(skb, local->hw.extra_tx_headroom); 3678 3679 switch (action_code) { 3680 case WLAN_TDLS_SETUP_REQUEST: 3681 case WLAN_TDLS_SETUP_RESPONSE: 3682 case WLAN_TDLS_SETUP_CONFIRM: 3683 case WLAN_TDLS_TEARDOWN: 3684 case WLAN_TDLS_DISCOVERY_REQUEST: 3685 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer, 3686 action_code, dialog_token, 3687 status_code, skb); 3688 send_direct = false; 3689 break; 3690 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: 3691 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code, 3692 dialog_token, status_code, 3693 skb); 3694 send_direct = true; 3695 break; 3696 default: 3697 ret = -ENOTSUPP; 3698 break; 3699 } 3700 3701 if (ret < 0) 3702 goto fail; 3703 3704 if (extra_ies_len) 3705 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len); 3706 3707 /* the TDLS link IE is always added last */ 3708 switch (action_code) { 3709 case WLAN_TDLS_SETUP_REQUEST: 3710 case WLAN_TDLS_SETUP_CONFIRM: 3711 case WLAN_TDLS_TEARDOWN: 3712 case WLAN_TDLS_DISCOVERY_REQUEST: 3713 /* we are the initiator */ 3714 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer, 3715 sdata->u.mgd.bssid); 3716 break; 3717 case WLAN_TDLS_SETUP_RESPONSE: 3718 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: 3719 /* we are the responder */ 3720 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr, 3721 sdata->u.mgd.bssid); 3722 break; 3723 default: 3724 ret = -ENOTSUPP; 3725 goto fail; 3726 } 3727 3728 if (send_direct) { 3729 ieee80211_tx_skb(sdata, skb); 3730 return 0; 3731 } 3732 3733 /* 3734 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise 3735 * we should default to AC_VI. 3736 */ 3737 switch (action_code) { 3738 case WLAN_TDLS_SETUP_REQUEST: 3739 case WLAN_TDLS_SETUP_RESPONSE: 3740 skb_set_queue_mapping(skb, IEEE80211_AC_BK); 3741 skb->priority = 2; 3742 break; 3743 default: 3744 skb_set_queue_mapping(skb, IEEE80211_AC_VI); 3745 skb->priority = 5; 3746 break; 3747 } 3748 3749 /* disable bottom halves when entering the Tx path */ 3750 local_bh_disable(); 3751 ret = ieee80211_subif_start_xmit(skb, dev); 3752 local_bh_enable(); 3753 3754 return ret; 3755 3756fail: 3757 dev_kfree_skb(skb); 3758 return ret; 3759} 3760 3761static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 3762 u8 *peer, enum nl80211_tdls_operation oper) 3763{ 3764 struct sta_info *sta; 3765 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3766 3767 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) 3768 return -ENOTSUPP; 3769 3770 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3771 return -EINVAL; 3772 3773 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer); 3774 3775 switch (oper) { 3776 case NL80211_TDLS_ENABLE_LINK: 3777 rcu_read_lock(); 3778 sta = sta_info_get(sdata, peer); 3779 if (!sta) { 3780 rcu_read_unlock(); 3781 return -ENOLINK; 3782 } 3783 3784 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH); 3785 rcu_read_unlock(); 3786 break; 3787 case NL80211_TDLS_DISABLE_LINK: 3788 return sta_info_destroy_addr(sdata, peer); 3789 case NL80211_TDLS_TEARDOWN: 3790 case NL80211_TDLS_SETUP: 3791 case NL80211_TDLS_DISCOVERY_REQ: 3792 /* We don't support in-driver setup/teardown/discovery */ 3793 return -ENOTSUPP; 3794 default: 3795 return -ENOTSUPP; 3796 } 3797 3798 return 0; 3799} 3800 3801static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3802 const u8 *peer, u64 *cookie) 3803{ 3804 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3805 struct ieee80211_local *local = sdata->local; 3806 struct ieee80211_qos_hdr *nullfunc; 3807 struct sk_buff *skb; 3808 int size = sizeof(*nullfunc); 3809 __le16 fc; 3810 bool qos; 3811 struct ieee80211_tx_info *info; 3812 struct sta_info *sta; 3813 struct ieee80211_chanctx_conf *chanctx_conf; 3814 enum ieee80211_band band; 3815 3816 rcu_read_lock(); 3817 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3818 if (WARN_ON(!chanctx_conf)) { 3819 rcu_read_unlock(); 3820 return -EINVAL; 3821 } 3822 band = chanctx_conf->def.chan->band; 3823 sta = sta_info_get_bss(sdata, peer); 3824 if (sta) { 3825 qos = test_sta_flag(sta, WLAN_STA_WME); 3826 } else { 3827 rcu_read_unlock(); 3828 return -ENOLINK; 3829 } 3830 3831 if (qos) { 3832 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3833 IEEE80211_STYPE_QOS_NULLFUNC | 3834 IEEE80211_FCTL_FROMDS); 3835 } else { 3836 size -= 2; 3837 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3838 IEEE80211_STYPE_NULLFUNC | 3839 IEEE80211_FCTL_FROMDS); 3840 } 3841 3842 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3843 if (!skb) { 3844 rcu_read_unlock(); 3845 return -ENOMEM; 3846 } 3847 3848 skb->dev = dev; 3849 3850 skb_reserve(skb, local->hw.extra_tx_headroom); 3851 3852 nullfunc = (void *) skb_put(skb, size); 3853 nullfunc->frame_control = fc; 3854 nullfunc->duration_id = 0; 3855 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3856 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3857 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3858 nullfunc->seq_ctrl = 0; 3859 3860 info = IEEE80211_SKB_CB(skb); 3861 3862 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3863 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3864 3865 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3866 skb->priority = 7; 3867 if (qos) 3868 nullfunc->qos_ctrl = cpu_to_le16(7); 3869 3870 local_bh_disable(); 3871 ieee80211_xmit(sdata, skb, band); 3872 local_bh_enable(); 3873 rcu_read_unlock(); 3874 3875 *cookie = (unsigned long) skb; 3876 return 0; 3877} 3878 3879static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3880 struct wireless_dev *wdev, 3881 struct cfg80211_chan_def *chandef) 3882{ 3883 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3884 struct ieee80211_local *local = wiphy_priv(wiphy); 3885 struct ieee80211_chanctx_conf *chanctx_conf; 3886 int ret = -ENODATA; 3887 3888 rcu_read_lock(); 3889 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3890 if (chanctx_conf) { 3891 *chandef = chanctx_conf->def; 3892 ret = 0; 3893 } else if (local->open_count > 0 && 3894 local->open_count == local->monitors && 3895 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3896 if (local->use_chanctx) 3897 *chandef = local->monitor_chandef; 3898 else 3899 *chandef = local->_oper_chandef; 3900 ret = 0; 3901 } 3902 rcu_read_unlock(); 3903 3904 return ret; 3905} 3906 3907#ifdef CONFIG_PM 3908static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3909{ 3910 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3911} 3912#endif 3913 3914static int ieee80211_set_qos_map(struct wiphy *wiphy, 3915 struct net_device *dev, 3916 struct cfg80211_qos_map *qos_map) 3917{ 3918 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3919 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3920 3921 if (qos_map) { 3922 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3923 if (!new_qos_map) 3924 return -ENOMEM; 3925 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3926 } else { 3927 /* A NULL qos_map was passed to disable QoS mapping */ 3928 new_qos_map = NULL; 3929 } 3930 3931 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3932 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3933 if (old_qos_map) 3934 kfree_rcu(old_qos_map, rcu_head); 3935 3936 return 0; 3937} 3938 3939const struct cfg80211_ops mac80211_config_ops = { 3940 .add_virtual_intf = ieee80211_add_iface, 3941 .del_virtual_intf = ieee80211_del_iface, 3942 .change_virtual_intf = ieee80211_change_iface, 3943 .start_p2p_device = ieee80211_start_p2p_device, 3944 .stop_p2p_device = ieee80211_stop_p2p_device, 3945 .add_key = ieee80211_add_key, 3946 .del_key = ieee80211_del_key, 3947 .get_key = ieee80211_get_key, 3948 .set_default_key = ieee80211_config_default_key, 3949 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3950 .start_ap = ieee80211_start_ap, 3951 .change_beacon = ieee80211_change_beacon, 3952 .stop_ap = ieee80211_stop_ap, 3953 .add_station = ieee80211_add_station, 3954 .del_station = ieee80211_del_station, 3955 .change_station = ieee80211_change_station, 3956 .get_station = ieee80211_get_station, 3957 .dump_station = ieee80211_dump_station, 3958 .dump_survey = ieee80211_dump_survey, 3959#ifdef CONFIG_MAC80211_MESH 3960 .add_mpath = ieee80211_add_mpath, 3961 .del_mpath = ieee80211_del_mpath, 3962 .change_mpath = ieee80211_change_mpath, 3963 .get_mpath = ieee80211_get_mpath, 3964 .dump_mpath = ieee80211_dump_mpath, 3965 .update_mesh_config = ieee80211_update_mesh_config, 3966 .get_mesh_config = ieee80211_get_mesh_config, 3967 .join_mesh = ieee80211_join_mesh, 3968 .leave_mesh = ieee80211_leave_mesh, 3969#endif 3970 .change_bss = ieee80211_change_bss, 3971 .set_txq_params = ieee80211_set_txq_params, 3972 .set_monitor_channel = ieee80211_set_monitor_channel, 3973 .suspend = ieee80211_suspend, 3974 .resume = ieee80211_resume, 3975 .scan = ieee80211_scan, 3976 .sched_scan_start = ieee80211_sched_scan_start, 3977 .sched_scan_stop = ieee80211_sched_scan_stop, 3978 .auth = ieee80211_auth, 3979 .assoc = ieee80211_assoc, 3980 .deauth = ieee80211_deauth, 3981 .disassoc = ieee80211_disassoc, 3982 .join_ibss = ieee80211_join_ibss, 3983 .leave_ibss = ieee80211_leave_ibss, 3984 .set_mcast_rate = ieee80211_set_mcast_rate, 3985 .set_wiphy_params = ieee80211_set_wiphy_params, 3986 .set_tx_power = ieee80211_set_tx_power, 3987 .get_tx_power = ieee80211_get_tx_power, 3988 .set_wds_peer = ieee80211_set_wds_peer, 3989 .rfkill_poll = ieee80211_rfkill_poll, 3990 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 3991 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 3992 .set_power_mgmt = ieee80211_set_power_mgmt, 3993 .set_bitrate_mask = ieee80211_set_bitrate_mask, 3994 .remain_on_channel = ieee80211_remain_on_channel, 3995 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 3996 .mgmt_tx = ieee80211_mgmt_tx, 3997 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 3998 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 3999 .mgmt_frame_register = ieee80211_mgmt_frame_register, 4000 .set_antenna = ieee80211_set_antenna, 4001 .get_antenna = ieee80211_get_antenna, 4002 .set_ringparam = ieee80211_set_ringparam, 4003 .get_ringparam = ieee80211_get_ringparam, 4004 .set_rekey_data = ieee80211_set_rekey_data, 4005 .tdls_oper = ieee80211_tdls_oper, 4006 .tdls_mgmt = ieee80211_tdls_mgmt, 4007 .probe_client = ieee80211_probe_client, 4008 .set_noack_map = ieee80211_set_noack_map, 4009#ifdef CONFIG_PM 4010 .set_wakeup = ieee80211_set_wakeup, 4011#endif 4012 .get_et_sset_count = ieee80211_get_et_sset_count, 4013 .get_et_stats = ieee80211_get_et_stats, 4014 .get_et_strings = ieee80211_get_et_strings, 4015 .get_channel = ieee80211_cfg_get_channel, 4016 .start_radar_detection = ieee80211_start_radar_detection, 4017 .channel_switch = ieee80211_channel_switch, 4018 .set_qos_map = ieee80211_set_qos_map, 4019}; 4020