| 1 | /* |
| 2 | * mac80211 configuration hooks for cfg80211 |
| 3 | * |
| 4 | * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> |
| 5 | * |
| 6 | * This file is GPLv2 as found in COPYING. |
| 7 | */ |
| 8 | |
| 9 | #include <linux/ieee80211.h> |
| 10 | #include <linux/nl80211.h> |
| 11 | #include <linux/rtnetlink.h> |
| 12 | #include <linux/slab.h> |
| 13 | #include <net/net_namespace.h> |
| 14 | #include <linux/rcupdate.h> |
| 15 | #include <linux/if_ether.h> |
| 16 | #include <net/cfg80211.h> |
| 17 | #include "ieee80211_i.h" |
| 18 | #include "driver-ops.h" |
| 19 | #include "cfg.h" |
| 20 | #include "rate.h" |
| 21 | #include "mesh.h" |
| 22 | |
| 23 | static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, |
| 24 | const char *name, |
| 25 | enum nl80211_iftype type, |
| 26 | u32 *flags, |
| 27 | struct vif_params *params) |
| 28 | { |
| 29 | struct ieee80211_local *local = wiphy_priv(wiphy); |
| 30 | struct wireless_dev *wdev; |
| 31 | struct ieee80211_sub_if_data *sdata; |
| 32 | int err; |
| 33 | |
| 34 | err = ieee80211_if_add(local, name, &wdev, type, params); |
| 35 | if (err) |
| 36 | return ERR_PTR(err); |
| 37 | |
| 38 | if (type == NL80211_IFTYPE_MONITOR && flags) { |
| 39 | sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| 40 | sdata->u.mntr_flags = *flags; |
| 41 | } |
| 42 | |
| 43 | return wdev; |
| 44 | } |
| 45 | |
| 46 | static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) |
| 47 | { |
| 48 | ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); |
| 49 | |
| 50 | return 0; |
| 51 | } |
| 52 | |
| 53 | static int ieee80211_change_iface(struct wiphy *wiphy, |
| 54 | struct net_device *dev, |
| 55 | enum nl80211_iftype type, u32 *flags, |
| 56 | struct vif_params *params) |
| 57 | { |
| 58 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 59 | int ret; |
| 60 | |
| 61 | ret = ieee80211_if_change_type(sdata, type); |
| 62 | if (ret) |
| 63 | return ret; |
| 64 | |
| 65 | if (type == NL80211_IFTYPE_AP_VLAN && |
| 66 | params && params->use_4addr == 0) |
| 67 | RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); |
| 68 | else if (type == NL80211_IFTYPE_STATION && |
| 69 | params && params->use_4addr >= 0) |
| 70 | sdata->u.mgd.use_4addr = params->use_4addr; |
| 71 | |
| 72 | if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) { |
| 73 | struct ieee80211_local *local = sdata->local; |
| 74 | |
| 75 | if (ieee80211_sdata_running(sdata)) { |
| 76 | u32 mask = MONITOR_FLAG_COOK_FRAMES | |
| 77 | MONITOR_FLAG_ACTIVE; |
| 78 | |
| 79 | /* |
| 80 | * Prohibit MONITOR_FLAG_COOK_FRAMES and |
| 81 | * MONITOR_FLAG_ACTIVE to be changed while the |
| 82 | * interface is up. |
| 83 | * Else we would need to add a lot of cruft |
| 84 | * to update everything: |
| 85 | * cooked_mntrs, monitor and all fif_* counters |
| 86 | * reconfigure hardware |
| 87 | */ |
| 88 | if ((*flags & mask) != (sdata->u.mntr_flags & mask)) |
| 89 | return -EBUSY; |
| 90 | |
| 91 | ieee80211_adjust_monitor_flags(sdata, -1); |
| 92 | sdata->u.mntr_flags = *flags; |
| 93 | ieee80211_adjust_monitor_flags(sdata, 1); |
| 94 | |
| 95 | ieee80211_configure_filter(local); |
| 96 | } else { |
| 97 | /* |
| 98 | * Because the interface is down, ieee80211_do_stop |
| 99 | * and ieee80211_do_open take care of "everything" |
| 100 | * mentioned in the comment above. |
| 101 | */ |
| 102 | sdata->u.mntr_flags = *flags; |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | return 0; |
| 107 | } |
| 108 | |
| 109 | static int ieee80211_start_p2p_device(struct wiphy *wiphy, |
| 110 | struct wireless_dev *wdev) |
| 111 | { |
| 112 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| 113 | int ret; |
| 114 | |
| 115 | mutex_lock(&sdata->local->chanctx_mtx); |
| 116 | ret = ieee80211_check_combinations(sdata, NULL, 0, 0); |
| 117 | mutex_unlock(&sdata->local->chanctx_mtx); |
| 118 | if (ret < 0) |
| 119 | return ret; |
| 120 | |
| 121 | return ieee80211_do_open(wdev, true); |
| 122 | } |
| 123 | |
| 124 | static void ieee80211_stop_p2p_device(struct wiphy *wiphy, |
| 125 | struct wireless_dev *wdev) |
| 126 | { |
| 127 | ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); |
| 128 | } |
| 129 | |
| 130 | static int ieee80211_set_noack_map(struct wiphy *wiphy, |
| 131 | struct net_device *dev, |
| 132 | u16 noack_map) |
| 133 | { |
| 134 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 135 | |
| 136 | sdata->noack_map = noack_map; |
| 137 | return 0; |
| 138 | } |
| 139 | |
| 140 | static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, |
| 141 | u8 key_idx, bool pairwise, const u8 *mac_addr, |
| 142 | struct key_params *params) |
| 143 | { |
| 144 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 145 | struct ieee80211_local *local = sdata->local; |
| 146 | struct sta_info *sta = NULL; |
| 147 | const struct ieee80211_cipher_scheme *cs = NULL; |
| 148 | struct ieee80211_key *key; |
| 149 | int err; |
| 150 | |
| 151 | if (!ieee80211_sdata_running(sdata)) |
| 152 | return -ENETDOWN; |
| 153 | |
| 154 | /* reject WEP and TKIP keys if WEP failed to initialize */ |
| 155 | switch (params->cipher) { |
| 156 | case WLAN_CIPHER_SUITE_WEP40: |
| 157 | case WLAN_CIPHER_SUITE_TKIP: |
| 158 | case WLAN_CIPHER_SUITE_WEP104: |
| 159 | if (IS_ERR(local->wep_tx_tfm)) |
| 160 | return -EINVAL; |
| 161 | break; |
| 162 | case WLAN_CIPHER_SUITE_CCMP: |
| 163 | case WLAN_CIPHER_SUITE_AES_CMAC: |
| 164 | case WLAN_CIPHER_SUITE_GCMP: |
| 165 | break; |
| 166 | default: |
| 167 | cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); |
| 168 | break; |
| 169 | } |
| 170 | |
| 171 | key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, |
| 172 | params->key, params->seq_len, params->seq, |
| 173 | cs); |
| 174 | if (IS_ERR(key)) |
| 175 | return PTR_ERR(key); |
| 176 | |
| 177 | if (pairwise) |
| 178 | key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; |
| 179 | |
| 180 | mutex_lock(&local->sta_mtx); |
| 181 | |
| 182 | if (mac_addr) { |
| 183 | if (ieee80211_vif_is_mesh(&sdata->vif)) |
| 184 | sta = sta_info_get(sdata, mac_addr); |
| 185 | else |
| 186 | sta = sta_info_get_bss(sdata, mac_addr); |
| 187 | /* |
| 188 | * The ASSOC test makes sure the driver is ready to |
| 189 | * receive the key. When wpa_supplicant has roamed |
| 190 | * using FT, it attempts to set the key before |
| 191 | * association has completed, this rejects that attempt |
| 192 | * so it will set the key again after assocation. |
| 193 | * |
| 194 | * TODO: accept the key if we have a station entry and |
| 195 | * add it to the device after the station. |
| 196 | */ |
| 197 | if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { |
| 198 | ieee80211_key_free_unused(key); |
| 199 | err = -ENOENT; |
| 200 | goto out_unlock; |
| 201 | } |
| 202 | } |
| 203 | |
| 204 | switch (sdata->vif.type) { |
| 205 | case NL80211_IFTYPE_STATION: |
| 206 | if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) |
| 207 | key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; |
| 208 | break; |
| 209 | case NL80211_IFTYPE_AP: |
| 210 | case NL80211_IFTYPE_AP_VLAN: |
| 211 | /* Keys without a station are used for TX only */ |
| 212 | if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP)) |
| 213 | key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; |
| 214 | break; |
| 215 | case NL80211_IFTYPE_ADHOC: |
| 216 | /* no MFP (yet) */ |
| 217 | break; |
| 218 | case NL80211_IFTYPE_MESH_POINT: |
| 219 | #ifdef CONFIG_MAC80211_MESH |
| 220 | if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) |
| 221 | key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; |
| 222 | break; |
| 223 | #endif |
| 224 | case NL80211_IFTYPE_WDS: |
| 225 | case NL80211_IFTYPE_MONITOR: |
| 226 | case NL80211_IFTYPE_P2P_DEVICE: |
| 227 | case NL80211_IFTYPE_UNSPECIFIED: |
| 228 | case NUM_NL80211_IFTYPES: |
| 229 | case NL80211_IFTYPE_P2P_CLIENT: |
| 230 | case NL80211_IFTYPE_P2P_GO: |
| 231 | /* shouldn't happen */ |
| 232 | WARN_ON_ONCE(1); |
| 233 | break; |
| 234 | } |
| 235 | |
| 236 | if (sta) |
| 237 | sta->cipher_scheme = cs; |
| 238 | |
| 239 | err = ieee80211_key_link(key, sdata, sta); |
| 240 | |
| 241 | out_unlock: |
| 242 | mutex_unlock(&local->sta_mtx); |
| 243 | |
| 244 | return err; |
| 245 | } |
| 246 | |
| 247 | static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, |
| 248 | u8 key_idx, bool pairwise, const u8 *mac_addr) |
| 249 | { |
| 250 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 251 | struct ieee80211_local *local = sdata->local; |
| 252 | struct sta_info *sta; |
| 253 | struct ieee80211_key *key = NULL; |
| 254 | int ret; |
| 255 | |
| 256 | mutex_lock(&local->sta_mtx); |
| 257 | mutex_lock(&local->key_mtx); |
| 258 | |
| 259 | if (mac_addr) { |
| 260 | ret = -ENOENT; |
| 261 | |
| 262 | sta = sta_info_get_bss(sdata, mac_addr); |
| 263 | if (!sta) |
| 264 | goto out_unlock; |
| 265 | |
| 266 | if (pairwise) |
| 267 | key = key_mtx_dereference(local, sta->ptk[key_idx]); |
| 268 | else |
| 269 | key = key_mtx_dereference(local, sta->gtk[key_idx]); |
| 270 | } else |
| 271 | key = key_mtx_dereference(local, sdata->keys[key_idx]); |
| 272 | |
| 273 | if (!key) { |
| 274 | ret = -ENOENT; |
| 275 | goto out_unlock; |
| 276 | } |
| 277 | |
| 278 | ieee80211_key_free(key, true); |
| 279 | |
| 280 | ret = 0; |
| 281 | out_unlock: |
| 282 | mutex_unlock(&local->key_mtx); |
| 283 | mutex_unlock(&local->sta_mtx); |
| 284 | |
| 285 | return ret; |
| 286 | } |
| 287 | |
| 288 | static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, |
| 289 | u8 key_idx, bool pairwise, const u8 *mac_addr, |
| 290 | void *cookie, |
| 291 | void (*callback)(void *cookie, |
| 292 | struct key_params *params)) |
| 293 | { |
| 294 | struct ieee80211_sub_if_data *sdata; |
| 295 | struct sta_info *sta = NULL; |
| 296 | u8 seq[6] = {0}; |
| 297 | struct key_params params; |
| 298 | struct ieee80211_key *key = NULL; |
| 299 | u64 pn64; |
| 300 | u32 iv32; |
| 301 | u16 iv16; |
| 302 | int err = -ENOENT; |
| 303 | |
| 304 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 305 | |
| 306 | rcu_read_lock(); |
| 307 | |
| 308 | if (mac_addr) { |
| 309 | sta = sta_info_get_bss(sdata, mac_addr); |
| 310 | if (!sta) |
| 311 | goto out; |
| 312 | |
| 313 | if (pairwise && key_idx < NUM_DEFAULT_KEYS) |
| 314 | key = rcu_dereference(sta->ptk[key_idx]); |
| 315 | else if (!pairwise && |
| 316 | key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) |
| 317 | key = rcu_dereference(sta->gtk[key_idx]); |
| 318 | } else |
| 319 | key = rcu_dereference(sdata->keys[key_idx]); |
| 320 | |
| 321 | if (!key) |
| 322 | goto out; |
| 323 | |
| 324 | memset(¶ms, 0, sizeof(params)); |
| 325 | |
| 326 | params.cipher = key->conf.cipher; |
| 327 | |
| 328 | switch (key->conf.cipher) { |
| 329 | case WLAN_CIPHER_SUITE_TKIP: |
| 330 | iv32 = key->u.tkip.tx.iv32; |
| 331 | iv16 = key->u.tkip.tx.iv16; |
| 332 | |
| 333 | if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) |
| 334 | drv_get_tkip_seq(sdata->local, |
| 335 | key->conf.hw_key_idx, |
| 336 | &iv32, &iv16); |
| 337 | |
| 338 | seq[0] = iv16 & 0xff; |
| 339 | seq[1] = (iv16 >> 8) & 0xff; |
| 340 | seq[2] = iv32 & 0xff; |
| 341 | seq[3] = (iv32 >> 8) & 0xff; |
| 342 | seq[4] = (iv32 >> 16) & 0xff; |
| 343 | seq[5] = (iv32 >> 24) & 0xff; |
| 344 | params.seq = seq; |
| 345 | params.seq_len = 6; |
| 346 | break; |
| 347 | case WLAN_CIPHER_SUITE_CCMP: |
| 348 | pn64 = atomic64_read(&key->u.ccmp.tx_pn); |
| 349 | seq[0] = pn64; |
| 350 | seq[1] = pn64 >> 8; |
| 351 | seq[2] = pn64 >> 16; |
| 352 | seq[3] = pn64 >> 24; |
| 353 | seq[4] = pn64 >> 32; |
| 354 | seq[5] = pn64 >> 40; |
| 355 | params.seq = seq; |
| 356 | params.seq_len = 6; |
| 357 | break; |
| 358 | case WLAN_CIPHER_SUITE_AES_CMAC: |
| 359 | pn64 = atomic64_read(&key->u.aes_cmac.tx_pn); |
| 360 | seq[0] = pn64; |
| 361 | seq[1] = pn64 >> 8; |
| 362 | seq[2] = pn64 >> 16; |
| 363 | seq[3] = pn64 >> 24; |
| 364 | seq[4] = pn64 >> 32; |
| 365 | seq[5] = pn64 >> 40; |
| 366 | params.seq = seq; |
| 367 | params.seq_len = 6; |
| 368 | break; |
| 369 | } |
| 370 | |
| 371 | params.key = key->conf.key; |
| 372 | params.key_len = key->conf.keylen; |
| 373 | |
| 374 | callback(cookie, ¶ms); |
| 375 | err = 0; |
| 376 | |
| 377 | out: |
| 378 | rcu_read_unlock(); |
| 379 | return err; |
| 380 | } |
| 381 | |
| 382 | static int ieee80211_config_default_key(struct wiphy *wiphy, |
| 383 | struct net_device *dev, |
| 384 | u8 key_idx, bool uni, |
| 385 | bool multi) |
| 386 | { |
| 387 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 388 | |
| 389 | ieee80211_set_default_key(sdata, key_idx, uni, multi); |
| 390 | |
| 391 | return 0; |
| 392 | } |
| 393 | |
| 394 | static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, |
| 395 | struct net_device *dev, |
| 396 | u8 key_idx) |
| 397 | { |
| 398 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 399 | |
| 400 | ieee80211_set_default_mgmt_key(sdata, key_idx); |
| 401 | |
| 402 | return 0; |
| 403 | } |
| 404 | |
| 405 | void sta_set_rate_info_tx(struct sta_info *sta, |
| 406 | const struct ieee80211_tx_rate *rate, |
| 407 | struct rate_info *rinfo) |
| 408 | { |
| 409 | rinfo->flags = 0; |
| 410 | if (rate->flags & IEEE80211_TX_RC_MCS) { |
| 411 | rinfo->flags |= RATE_INFO_FLAGS_MCS; |
| 412 | rinfo->mcs = rate->idx; |
| 413 | } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { |
| 414 | rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; |
| 415 | rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); |
| 416 | rinfo->nss = ieee80211_rate_get_vht_nss(rate); |
| 417 | } else { |
| 418 | struct ieee80211_supported_band *sband; |
| 419 | int shift = ieee80211_vif_get_shift(&sta->sdata->vif); |
| 420 | u16 brate; |
| 421 | |
| 422 | sband = sta->local->hw.wiphy->bands[ |
| 423 | ieee80211_get_sdata_band(sta->sdata)]; |
| 424 | brate = sband->bitrates[rate->idx].bitrate; |
| 425 | rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); |
| 426 | } |
| 427 | if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) |
| 428 | rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; |
| 429 | if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) |
| 430 | rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH; |
| 431 | if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) |
| 432 | rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH; |
| 433 | if (rate->flags & IEEE80211_TX_RC_SHORT_GI) |
| 434 | rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; |
| 435 | } |
| 436 | |
| 437 | void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo) |
| 438 | { |
| 439 | rinfo->flags = 0; |
| 440 | |
| 441 | if (sta->last_rx_rate_flag & RX_FLAG_HT) { |
| 442 | rinfo->flags |= RATE_INFO_FLAGS_MCS; |
| 443 | rinfo->mcs = sta->last_rx_rate_idx; |
| 444 | } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) { |
| 445 | rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; |
| 446 | rinfo->nss = sta->last_rx_rate_vht_nss; |
| 447 | rinfo->mcs = sta->last_rx_rate_idx; |
| 448 | } else { |
| 449 | struct ieee80211_supported_band *sband; |
| 450 | int shift = ieee80211_vif_get_shift(&sta->sdata->vif); |
| 451 | u16 brate; |
| 452 | |
| 453 | sband = sta->local->hw.wiphy->bands[ |
| 454 | ieee80211_get_sdata_band(sta->sdata)]; |
| 455 | brate = sband->bitrates[sta->last_rx_rate_idx].bitrate; |
| 456 | rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); |
| 457 | } |
| 458 | |
| 459 | if (sta->last_rx_rate_flag & RX_FLAG_40MHZ) |
| 460 | rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; |
| 461 | if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI) |
| 462 | rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; |
| 463 | if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80MHZ) |
| 464 | rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH; |
| 465 | if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80P80MHZ) |
| 466 | rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH; |
| 467 | if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_160MHZ) |
| 468 | rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH; |
| 469 | } |
| 470 | |
| 471 | static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, |
| 472 | int idx, u8 *mac, struct station_info *sinfo) |
| 473 | { |
| 474 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 475 | struct ieee80211_local *local = sdata->local; |
| 476 | struct sta_info *sta; |
| 477 | int ret = -ENOENT; |
| 478 | |
| 479 | mutex_lock(&local->sta_mtx); |
| 480 | |
| 481 | sta = sta_info_get_by_idx(sdata, idx); |
| 482 | if (sta) { |
| 483 | ret = 0; |
| 484 | memcpy(mac, sta->sta.addr, ETH_ALEN); |
| 485 | sta_set_sinfo(sta, sinfo); |
| 486 | } |
| 487 | |
| 488 | mutex_unlock(&local->sta_mtx); |
| 489 | |
| 490 | return ret; |
| 491 | } |
| 492 | |
| 493 | static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, |
| 494 | int idx, struct survey_info *survey) |
| 495 | { |
| 496 | struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); |
| 497 | |
| 498 | return drv_get_survey(local, idx, survey); |
| 499 | } |
| 500 | |
| 501 | static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, |
| 502 | const u8 *mac, struct station_info *sinfo) |
| 503 | { |
| 504 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 505 | struct ieee80211_local *local = sdata->local; |
| 506 | struct sta_info *sta; |
| 507 | int ret = -ENOENT; |
| 508 | |
| 509 | mutex_lock(&local->sta_mtx); |
| 510 | |
| 511 | sta = sta_info_get_bss(sdata, mac); |
| 512 | if (sta) { |
| 513 | ret = 0; |
| 514 | sta_set_sinfo(sta, sinfo); |
| 515 | } |
| 516 | |
| 517 | mutex_unlock(&local->sta_mtx); |
| 518 | |
| 519 | return ret; |
| 520 | } |
| 521 | |
| 522 | static int ieee80211_set_monitor_channel(struct wiphy *wiphy, |
| 523 | struct cfg80211_chan_def *chandef) |
| 524 | { |
| 525 | struct ieee80211_local *local = wiphy_priv(wiphy); |
| 526 | struct ieee80211_sub_if_data *sdata; |
| 527 | int ret = 0; |
| 528 | |
| 529 | if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) |
| 530 | return 0; |
| 531 | |
| 532 | mutex_lock(&local->mtx); |
| 533 | mutex_lock(&local->iflist_mtx); |
| 534 | if (local->use_chanctx) { |
| 535 | sdata = rcu_dereference_protected( |
| 536 | local->monitor_sdata, |
| 537 | lockdep_is_held(&local->iflist_mtx)); |
| 538 | if (sdata) { |
| 539 | ieee80211_vif_release_channel(sdata); |
| 540 | ret = ieee80211_vif_use_channel(sdata, chandef, |
| 541 | IEEE80211_CHANCTX_EXCLUSIVE); |
| 542 | } |
| 543 | } else if (local->open_count == local->monitors) { |
| 544 | local->_oper_chandef = *chandef; |
| 545 | ieee80211_hw_config(local, 0); |
| 546 | } |
| 547 | |
| 548 | if (ret == 0) |
| 549 | local->monitor_chandef = *chandef; |
| 550 | mutex_unlock(&local->iflist_mtx); |
| 551 | mutex_unlock(&local->mtx); |
| 552 | |
| 553 | return ret; |
| 554 | } |
| 555 | |
| 556 | static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, |
| 557 | const u8 *resp, size_t resp_len, |
| 558 | const struct ieee80211_csa_settings *csa) |
| 559 | { |
| 560 | struct probe_resp *new, *old; |
| 561 | |
| 562 | if (!resp || !resp_len) |
| 563 | return 1; |
| 564 | |
| 565 | old = sdata_dereference(sdata->u.ap.probe_resp, sdata); |
| 566 | |
| 567 | new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); |
| 568 | if (!new) |
| 569 | return -ENOMEM; |
| 570 | |
| 571 | new->len = resp_len; |
| 572 | memcpy(new->data, resp, resp_len); |
| 573 | |
| 574 | if (csa) |
| 575 | memcpy(new->csa_counter_offsets, csa->counter_offsets_presp, |
| 576 | csa->n_counter_offsets_presp * |
| 577 | sizeof(new->csa_counter_offsets[0])); |
| 578 | |
| 579 | rcu_assign_pointer(sdata->u.ap.probe_resp, new); |
| 580 | if (old) |
| 581 | kfree_rcu(old, rcu_head); |
| 582 | |
| 583 | return 0; |
| 584 | } |
| 585 | |
| 586 | static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, |
| 587 | struct cfg80211_beacon_data *params, |
| 588 | const struct ieee80211_csa_settings *csa) |
| 589 | { |
| 590 | struct beacon_data *new, *old; |
| 591 | int new_head_len, new_tail_len; |
| 592 | int size, err; |
| 593 | u32 changed = BSS_CHANGED_BEACON; |
| 594 | |
| 595 | old = sdata_dereference(sdata->u.ap.beacon, sdata); |
| 596 | |
| 597 | |
| 598 | /* Need to have a beacon head if we don't have one yet */ |
| 599 | if (!params->head && !old) |
| 600 | return -EINVAL; |
| 601 | |
| 602 | /* new or old head? */ |
| 603 | if (params->head) |
| 604 | new_head_len = params->head_len; |
| 605 | else |
| 606 | new_head_len = old->head_len; |
| 607 | |
| 608 | /* new or old tail? */ |
| 609 | if (params->tail || !old) |
| 610 | /* params->tail_len will be zero for !params->tail */ |
| 611 | new_tail_len = params->tail_len; |
| 612 | else |
| 613 | new_tail_len = old->tail_len; |
| 614 | |
| 615 | size = sizeof(*new) + new_head_len + new_tail_len; |
| 616 | |
| 617 | new = kzalloc(size, GFP_KERNEL); |
| 618 | if (!new) |
| 619 | return -ENOMEM; |
| 620 | |
| 621 | /* start filling the new info now */ |
| 622 | |
| 623 | /* |
| 624 | * pointers go into the block we allocated, |
| 625 | * memory is | beacon_data | head | tail | |
| 626 | */ |
| 627 | new->head = ((u8 *) new) + sizeof(*new); |
| 628 | new->tail = new->head + new_head_len; |
| 629 | new->head_len = new_head_len; |
| 630 | new->tail_len = new_tail_len; |
| 631 | |
| 632 | if (csa) { |
| 633 | new->csa_current_counter = csa->count; |
| 634 | memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon, |
| 635 | csa->n_counter_offsets_beacon * |
| 636 | sizeof(new->csa_counter_offsets[0])); |
| 637 | } |
| 638 | |
| 639 | /* copy in head */ |
| 640 | if (params->head) |
| 641 | memcpy(new->head, params->head, new_head_len); |
| 642 | else |
| 643 | memcpy(new->head, old->head, new_head_len); |
| 644 | |
| 645 | /* copy in optional tail */ |
| 646 | if (params->tail) |
| 647 | memcpy(new->tail, params->tail, new_tail_len); |
| 648 | else |
| 649 | if (old) |
| 650 | memcpy(new->tail, old->tail, new_tail_len); |
| 651 | |
| 652 | err = ieee80211_set_probe_resp(sdata, params->probe_resp, |
| 653 | params->probe_resp_len, csa); |
| 654 | if (err < 0) |
| 655 | return err; |
| 656 | if (err == 0) |
| 657 | changed |= BSS_CHANGED_AP_PROBE_RESP; |
| 658 | |
| 659 | rcu_assign_pointer(sdata->u.ap.beacon, new); |
| 660 | |
| 661 | if (old) |
| 662 | kfree_rcu(old, rcu_head); |
| 663 | |
| 664 | return changed; |
| 665 | } |
| 666 | |
| 667 | static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, |
| 668 | struct cfg80211_ap_settings *params) |
| 669 | { |
| 670 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 671 | struct ieee80211_local *local = sdata->local; |
| 672 | struct beacon_data *old; |
| 673 | struct ieee80211_sub_if_data *vlan; |
| 674 | u32 changed = BSS_CHANGED_BEACON_INT | |
| 675 | BSS_CHANGED_BEACON_ENABLED | |
| 676 | BSS_CHANGED_BEACON | |
| 677 | BSS_CHANGED_SSID | |
| 678 | BSS_CHANGED_P2P_PS; |
| 679 | int err; |
| 680 | |
| 681 | old = sdata_dereference(sdata->u.ap.beacon, sdata); |
| 682 | if (old) |
| 683 | return -EALREADY; |
| 684 | |
| 685 | /* TODO: make hostapd tell us what it wants */ |
| 686 | sdata->smps_mode = IEEE80211_SMPS_OFF; |
| 687 | sdata->needed_rx_chains = sdata->local->rx_chains; |
| 688 | |
| 689 | mutex_lock(&local->mtx); |
| 690 | err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, |
| 691 | IEEE80211_CHANCTX_SHARED); |
| 692 | if (!err) |
| 693 | ieee80211_vif_copy_chanctx_to_vlans(sdata, false); |
| 694 | mutex_unlock(&local->mtx); |
| 695 | if (err) |
| 696 | return err; |
| 697 | |
| 698 | /* |
| 699 | * Apply control port protocol, this allows us to |
| 700 | * not encrypt dynamic WEP control frames. |
| 701 | */ |
| 702 | sdata->control_port_protocol = params->crypto.control_port_ethertype; |
| 703 | sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; |
| 704 | sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, |
| 705 | ¶ms->crypto, |
| 706 | sdata->vif.type); |
| 707 | |
| 708 | list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { |
| 709 | vlan->control_port_protocol = |
| 710 | params->crypto.control_port_ethertype; |
| 711 | vlan->control_port_no_encrypt = |
| 712 | params->crypto.control_port_no_encrypt; |
| 713 | vlan->encrypt_headroom = |
| 714 | ieee80211_cs_headroom(sdata->local, |
| 715 | ¶ms->crypto, |
| 716 | vlan->vif.type); |
| 717 | } |
| 718 | |
| 719 | sdata->vif.bss_conf.beacon_int = params->beacon_interval; |
| 720 | sdata->vif.bss_conf.dtim_period = params->dtim_period; |
| 721 | sdata->vif.bss_conf.enable_beacon = true; |
| 722 | |
| 723 | sdata->vif.bss_conf.ssid_len = params->ssid_len; |
| 724 | if (params->ssid_len) |
| 725 | memcpy(sdata->vif.bss_conf.ssid, params->ssid, |
| 726 | params->ssid_len); |
| 727 | sdata->vif.bss_conf.hidden_ssid = |
| 728 | (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); |
| 729 | |
| 730 | memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, |
| 731 | sizeof(sdata->vif.bss_conf.p2p_noa_attr)); |
| 732 | sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = |
| 733 | params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; |
| 734 | if (params->p2p_opp_ps) |
| 735 | sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= |
| 736 | IEEE80211_P2P_OPPPS_ENABLE_BIT; |
| 737 | |
| 738 | err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); |
| 739 | if (err < 0) { |
| 740 | ieee80211_vif_release_channel(sdata); |
| 741 | return err; |
| 742 | } |
| 743 | changed |= err; |
| 744 | |
| 745 | err = drv_start_ap(sdata->local, sdata); |
| 746 | if (err) { |
| 747 | old = sdata_dereference(sdata->u.ap.beacon, sdata); |
| 748 | |
| 749 | if (old) |
| 750 | kfree_rcu(old, rcu_head); |
| 751 | RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); |
| 752 | ieee80211_vif_release_channel(sdata); |
| 753 | return err; |
| 754 | } |
| 755 | |
| 756 | ieee80211_recalc_dtim(local, sdata); |
| 757 | ieee80211_bss_info_change_notify(sdata, changed); |
| 758 | |
| 759 | netif_carrier_on(dev); |
| 760 | list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) |
| 761 | netif_carrier_on(vlan->dev); |
| 762 | |
| 763 | return 0; |
| 764 | } |
| 765 | |
| 766 | static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, |
| 767 | struct cfg80211_beacon_data *params) |
| 768 | { |
| 769 | struct ieee80211_sub_if_data *sdata; |
| 770 | struct beacon_data *old; |
| 771 | int err; |
| 772 | |
| 773 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 774 | sdata_assert_lock(sdata); |
| 775 | |
| 776 | /* don't allow changing the beacon while CSA is in place - offset |
| 777 | * of channel switch counter may change |
| 778 | */ |
| 779 | if (sdata->vif.csa_active) |
| 780 | return -EBUSY; |
| 781 | |
| 782 | old = sdata_dereference(sdata->u.ap.beacon, sdata); |
| 783 | if (!old) |
| 784 | return -ENOENT; |
| 785 | |
| 786 | err = ieee80211_assign_beacon(sdata, params, NULL); |
| 787 | if (err < 0) |
| 788 | return err; |
| 789 | ieee80211_bss_info_change_notify(sdata, err); |
| 790 | return 0; |
| 791 | } |
| 792 | |
| 793 | bool ieee80211_csa_needs_block_tx(struct ieee80211_local *local) |
| 794 | { |
| 795 | struct ieee80211_sub_if_data *sdata; |
| 796 | |
| 797 | lockdep_assert_held(&local->mtx); |
| 798 | |
| 799 | rcu_read_lock(); |
| 800 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { |
| 801 | if (!ieee80211_sdata_running(sdata)) |
| 802 | continue; |
| 803 | |
| 804 | if (!sdata->vif.csa_active) |
| 805 | continue; |
| 806 | |
| 807 | if (!sdata->csa_block_tx) |
| 808 | continue; |
| 809 | |
| 810 | rcu_read_unlock(); |
| 811 | return true; |
| 812 | } |
| 813 | rcu_read_unlock(); |
| 814 | |
| 815 | return false; |
| 816 | } |
| 817 | |
| 818 | static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) |
| 819 | { |
| 820 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 821 | struct ieee80211_sub_if_data *vlan; |
| 822 | struct ieee80211_local *local = sdata->local; |
| 823 | struct beacon_data *old_beacon; |
| 824 | struct probe_resp *old_probe_resp; |
| 825 | struct cfg80211_chan_def chandef; |
| 826 | |
| 827 | sdata_assert_lock(sdata); |
| 828 | |
| 829 | old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); |
| 830 | if (!old_beacon) |
| 831 | return -ENOENT; |
| 832 | old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); |
| 833 | |
| 834 | /* abort any running channel switch */ |
| 835 | mutex_lock(&local->mtx); |
| 836 | sdata->vif.csa_active = false; |
| 837 | if (!ieee80211_csa_needs_block_tx(local)) |
| 838 | ieee80211_wake_queues_by_reason(&local->hw, |
| 839 | IEEE80211_MAX_QUEUE_MAP, |
| 840 | IEEE80211_QUEUE_STOP_REASON_CSA, |
| 841 | false); |
| 842 | mutex_unlock(&local->mtx); |
| 843 | |
| 844 | kfree(sdata->u.ap.next_beacon); |
| 845 | sdata->u.ap.next_beacon = NULL; |
| 846 | |
| 847 | /* turn off carrier for this interface and dependent VLANs */ |
| 848 | list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) |
| 849 | netif_carrier_off(vlan->dev); |
| 850 | netif_carrier_off(dev); |
| 851 | |
| 852 | /* remove beacon and probe response */ |
| 853 | RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); |
| 854 | RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); |
| 855 | kfree_rcu(old_beacon, rcu_head); |
| 856 | if (old_probe_resp) |
| 857 | kfree_rcu(old_probe_resp, rcu_head); |
| 858 | sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF; |
| 859 | |
| 860 | __sta_info_flush(sdata, true); |
| 861 | ieee80211_free_keys(sdata, true); |
| 862 | |
| 863 | sdata->vif.bss_conf.enable_beacon = false; |
| 864 | sdata->vif.bss_conf.ssid_len = 0; |
| 865 | clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); |
| 866 | ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); |
| 867 | |
| 868 | if (sdata->wdev.cac_started) { |
| 869 | chandef = sdata->vif.bss_conf.chandef; |
| 870 | cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); |
| 871 | cfg80211_cac_event(sdata->dev, &chandef, |
| 872 | NL80211_RADAR_CAC_ABORTED, |
| 873 | GFP_KERNEL); |
| 874 | } |
| 875 | |
| 876 | drv_stop_ap(sdata->local, sdata); |
| 877 | |
| 878 | /* free all potentially still buffered bcast frames */ |
| 879 | local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); |
| 880 | skb_queue_purge(&sdata->u.ap.ps.bc_buf); |
| 881 | |
| 882 | mutex_lock(&local->mtx); |
| 883 | ieee80211_vif_copy_chanctx_to_vlans(sdata, true); |
| 884 | ieee80211_vif_release_channel(sdata); |
| 885 | mutex_unlock(&local->mtx); |
| 886 | |
| 887 | return 0; |
| 888 | } |
| 889 | |
| 890 | /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */ |
| 891 | struct iapp_layer2_update { |
| 892 | u8 da[ETH_ALEN]; /* broadcast */ |
| 893 | u8 sa[ETH_ALEN]; /* STA addr */ |
| 894 | __be16 len; /* 6 */ |
| 895 | u8 dsap; /* 0 */ |
| 896 | u8 ssap; /* 0 */ |
| 897 | u8 control; |
| 898 | u8 xid_info[3]; |
| 899 | } __packed; |
| 900 | |
| 901 | static void ieee80211_send_layer2_update(struct sta_info *sta) |
| 902 | { |
| 903 | struct iapp_layer2_update *msg; |
| 904 | struct sk_buff *skb; |
| 905 | |
| 906 | /* Send Level 2 Update Frame to update forwarding tables in layer 2 |
| 907 | * bridge devices */ |
| 908 | |
| 909 | skb = dev_alloc_skb(sizeof(*msg)); |
| 910 | if (!skb) |
| 911 | return; |
| 912 | msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg)); |
| 913 | |
| 914 | /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID) |
| 915 | * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */ |
| 916 | |
| 917 | eth_broadcast_addr(msg->da); |
| 918 | memcpy(msg->sa, sta->sta.addr, ETH_ALEN); |
| 919 | msg->len = htons(6); |
| 920 | msg->dsap = 0; |
| 921 | msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */ |
| 922 | msg->control = 0xaf; /* XID response lsb.1111F101. |
| 923 | * F=0 (no poll command; unsolicited frame) */ |
| 924 | msg->xid_info[0] = 0x81; /* XID format identifier */ |
| 925 | msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */ |
| 926 | msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */ |
| 927 | |
| 928 | skb->dev = sta->sdata->dev; |
| 929 | skb->protocol = eth_type_trans(skb, sta->sdata->dev); |
| 930 | memset(skb->cb, 0, sizeof(skb->cb)); |
| 931 | netif_rx_ni(skb); |
| 932 | } |
| 933 | |
| 934 | static int sta_apply_auth_flags(struct ieee80211_local *local, |
| 935 | struct sta_info *sta, |
| 936 | u32 mask, u32 set) |
| 937 | { |
| 938 | int ret; |
| 939 | |
| 940 | if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && |
| 941 | set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && |
| 942 | !test_sta_flag(sta, WLAN_STA_AUTH)) { |
| 943 | ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); |
| 944 | if (ret) |
| 945 | return ret; |
| 946 | } |
| 947 | |
| 948 | if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && |
| 949 | set & BIT(NL80211_STA_FLAG_ASSOCIATED) && |
| 950 | !test_sta_flag(sta, WLAN_STA_ASSOC)) { |
| 951 | ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); |
| 952 | if (ret) |
| 953 | return ret; |
| 954 | } |
| 955 | |
| 956 | if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { |
| 957 | if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) |
| 958 | ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); |
| 959 | else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) |
| 960 | ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); |
| 961 | else |
| 962 | ret = 0; |
| 963 | if (ret) |
| 964 | return ret; |
| 965 | } |
| 966 | |
| 967 | if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && |
| 968 | !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && |
| 969 | test_sta_flag(sta, WLAN_STA_ASSOC)) { |
| 970 | ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); |
| 971 | if (ret) |
| 972 | return ret; |
| 973 | } |
| 974 | |
| 975 | if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && |
| 976 | !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && |
| 977 | test_sta_flag(sta, WLAN_STA_AUTH)) { |
| 978 | ret = sta_info_move_state(sta, IEEE80211_STA_NONE); |
| 979 | if (ret) |
| 980 | return ret; |
| 981 | } |
| 982 | |
| 983 | return 0; |
| 984 | } |
| 985 | |
| 986 | static int sta_apply_parameters(struct ieee80211_local *local, |
| 987 | struct sta_info *sta, |
| 988 | struct station_parameters *params) |
| 989 | { |
| 990 | int ret = 0; |
| 991 | struct ieee80211_supported_band *sband; |
| 992 | struct ieee80211_sub_if_data *sdata = sta->sdata; |
| 993 | enum ieee80211_band band = ieee80211_get_sdata_band(sdata); |
| 994 | u32 mask, set; |
| 995 | |
| 996 | sband = local->hw.wiphy->bands[band]; |
| 997 | |
| 998 | mask = params->sta_flags_mask; |
| 999 | set = params->sta_flags_set; |
| 1000 | |
| 1001 | if (ieee80211_vif_is_mesh(&sdata->vif)) { |
| 1002 | /* |
| 1003 | * In mesh mode, ASSOCIATED isn't part of the nl80211 |
| 1004 | * API but must follow AUTHENTICATED for driver state. |
| 1005 | */ |
| 1006 | if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) |
| 1007 | mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); |
| 1008 | if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) |
| 1009 | set |= BIT(NL80211_STA_FLAG_ASSOCIATED); |
| 1010 | } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { |
| 1011 | /* |
| 1012 | * TDLS -- everything follows authorized, but |
| 1013 | * only becoming authorized is possible, not |
| 1014 | * going back |
| 1015 | */ |
| 1016 | if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { |
| 1017 | set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
| 1018 | BIT(NL80211_STA_FLAG_ASSOCIATED); |
| 1019 | mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
| 1020 | BIT(NL80211_STA_FLAG_ASSOCIATED); |
| 1021 | } |
| 1022 | } |
| 1023 | |
| 1024 | ret = sta_apply_auth_flags(local, sta, mask, set); |
| 1025 | if (ret) |
| 1026 | return ret; |
| 1027 | |
| 1028 | if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { |
| 1029 | if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) |
| 1030 | set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); |
| 1031 | else |
| 1032 | clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); |
| 1033 | } |
| 1034 | |
| 1035 | if (mask & BIT(NL80211_STA_FLAG_WME)) { |
| 1036 | if (set & BIT(NL80211_STA_FLAG_WME)) { |
| 1037 | set_sta_flag(sta, WLAN_STA_WME); |
| 1038 | sta->sta.wme = true; |
| 1039 | } else { |
| 1040 | clear_sta_flag(sta, WLAN_STA_WME); |
| 1041 | sta->sta.wme = false; |
| 1042 | } |
| 1043 | } |
| 1044 | |
| 1045 | if (mask & BIT(NL80211_STA_FLAG_MFP)) { |
| 1046 | if (set & BIT(NL80211_STA_FLAG_MFP)) |
| 1047 | set_sta_flag(sta, WLAN_STA_MFP); |
| 1048 | else |
| 1049 | clear_sta_flag(sta, WLAN_STA_MFP); |
| 1050 | } |
| 1051 | |
| 1052 | if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { |
| 1053 | if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) |
| 1054 | set_sta_flag(sta, WLAN_STA_TDLS_PEER); |
| 1055 | else |
| 1056 | clear_sta_flag(sta, WLAN_STA_TDLS_PEER); |
| 1057 | } |
| 1058 | |
| 1059 | if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { |
| 1060 | sta->sta.uapsd_queues = params->uapsd_queues; |
| 1061 | sta->sta.max_sp = params->max_sp; |
| 1062 | } |
| 1063 | |
| 1064 | /* |
| 1065 | * cfg80211 validates this (1-2007) and allows setting the AID |
| 1066 | * only when creating a new station entry |
| 1067 | */ |
| 1068 | if (params->aid) |
| 1069 | sta->sta.aid = params->aid; |
| 1070 | |
| 1071 | /* |
| 1072 | * Some of the following updates would be racy if called on an |
| 1073 | * existing station, via ieee80211_change_station(). However, |
| 1074 | * all such changes are rejected by cfg80211 except for updates |
| 1075 | * changing the supported rates on an existing but not yet used |
| 1076 | * TDLS peer. |
| 1077 | */ |
| 1078 | |
| 1079 | if (params->listen_interval >= 0) |
| 1080 | sta->listen_interval = params->listen_interval; |
| 1081 | |
| 1082 | if (params->supported_rates) { |
| 1083 | ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, |
| 1084 | sband, params->supported_rates, |
| 1085 | params->supported_rates_len, |
| 1086 | &sta->sta.supp_rates[band]); |
| 1087 | } |
| 1088 | |
| 1089 | if (params->ht_capa) |
| 1090 | ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, |
| 1091 | params->ht_capa, sta); |
| 1092 | |
| 1093 | if (params->vht_capa) |
| 1094 | ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, |
| 1095 | params->vht_capa, sta); |
| 1096 | |
| 1097 | if (params->opmode_notif_used) { |
| 1098 | /* returned value is only needed for rc update, but the |
| 1099 | * rc isn't initialized here yet, so ignore it |
| 1100 | */ |
| 1101 | __ieee80211_vht_handle_opmode(sdata, sta, |
| 1102 | params->opmode_notif, |
| 1103 | band, false); |
| 1104 | } |
| 1105 | |
| 1106 | if (ieee80211_vif_is_mesh(&sdata->vif)) { |
| 1107 | #ifdef CONFIG_MAC80211_MESH |
| 1108 | u32 changed = 0; |
| 1109 | |
| 1110 | if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { |
| 1111 | switch (params->plink_state) { |
| 1112 | case NL80211_PLINK_ESTAB: |
| 1113 | if (sta->plink_state != NL80211_PLINK_ESTAB) |
| 1114 | changed = mesh_plink_inc_estab_count( |
| 1115 | sdata); |
| 1116 | sta->plink_state = params->plink_state; |
| 1117 | |
| 1118 | ieee80211_mps_sta_status_update(sta); |
| 1119 | changed |= ieee80211_mps_set_sta_local_pm(sta, |
| 1120 | sdata->u.mesh.mshcfg.power_mode); |
| 1121 | break; |
| 1122 | case NL80211_PLINK_LISTEN: |
| 1123 | case NL80211_PLINK_BLOCKED: |
| 1124 | case NL80211_PLINK_OPN_SNT: |
| 1125 | case NL80211_PLINK_OPN_RCVD: |
| 1126 | case NL80211_PLINK_CNF_RCVD: |
| 1127 | case NL80211_PLINK_HOLDING: |
| 1128 | if (sta->plink_state == NL80211_PLINK_ESTAB) |
| 1129 | changed = mesh_plink_dec_estab_count( |
| 1130 | sdata); |
| 1131 | sta->plink_state = params->plink_state; |
| 1132 | |
| 1133 | ieee80211_mps_sta_status_update(sta); |
| 1134 | changed |= ieee80211_mps_set_sta_local_pm(sta, |
| 1135 | NL80211_MESH_POWER_UNKNOWN); |
| 1136 | break; |
| 1137 | default: |
| 1138 | /* nothing */ |
| 1139 | break; |
| 1140 | } |
| 1141 | } |
| 1142 | |
| 1143 | switch (params->plink_action) { |
| 1144 | case NL80211_PLINK_ACTION_NO_ACTION: |
| 1145 | /* nothing */ |
| 1146 | break; |
| 1147 | case NL80211_PLINK_ACTION_OPEN: |
| 1148 | changed |= mesh_plink_open(sta); |
| 1149 | break; |
| 1150 | case NL80211_PLINK_ACTION_BLOCK: |
| 1151 | changed |= mesh_plink_block(sta); |
| 1152 | break; |
| 1153 | } |
| 1154 | |
| 1155 | if (params->local_pm) |
| 1156 | changed |= |
| 1157 | ieee80211_mps_set_sta_local_pm(sta, |
| 1158 | params->local_pm); |
| 1159 | ieee80211_mbss_info_change_notify(sdata, changed); |
| 1160 | #endif |
| 1161 | } |
| 1162 | |
| 1163 | return 0; |
| 1164 | } |
| 1165 | |
| 1166 | static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, |
| 1167 | const u8 *mac, |
| 1168 | struct station_parameters *params) |
| 1169 | { |
| 1170 | struct ieee80211_local *local = wiphy_priv(wiphy); |
| 1171 | struct sta_info *sta; |
| 1172 | struct ieee80211_sub_if_data *sdata; |
| 1173 | int err; |
| 1174 | int layer2_update; |
| 1175 | |
| 1176 | if (params->vlan) { |
| 1177 | sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); |
| 1178 | |
| 1179 | if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && |
| 1180 | sdata->vif.type != NL80211_IFTYPE_AP) |
| 1181 | return -EINVAL; |
| 1182 | } else |
| 1183 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 1184 | |
| 1185 | if (ether_addr_equal(mac, sdata->vif.addr)) |
| 1186 | return -EINVAL; |
| 1187 | |
| 1188 | if (is_multicast_ether_addr(mac)) |
| 1189 | return -EINVAL; |
| 1190 | |
| 1191 | sta = sta_info_alloc(sdata, mac, GFP_KERNEL); |
| 1192 | if (!sta) |
| 1193 | return -ENOMEM; |
| 1194 | |
| 1195 | /* |
| 1196 | * defaults -- if userspace wants something else we'll |
| 1197 | * change it accordingly in sta_apply_parameters() |
| 1198 | */ |
| 1199 | if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) { |
| 1200 | sta_info_pre_move_state(sta, IEEE80211_STA_AUTH); |
| 1201 | sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC); |
| 1202 | } else { |
| 1203 | sta->sta.tdls = true; |
| 1204 | } |
| 1205 | |
| 1206 | err = sta_apply_parameters(local, sta, params); |
| 1207 | if (err) { |
| 1208 | sta_info_free(local, sta); |
| 1209 | return err; |
| 1210 | } |
| 1211 | |
| 1212 | /* |
| 1213 | * for TDLS, rate control should be initialized only when |
| 1214 | * rates are known and station is marked authorized |
| 1215 | */ |
| 1216 | if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) |
| 1217 | rate_control_rate_init(sta); |
| 1218 | |
| 1219 | layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || |
| 1220 | sdata->vif.type == NL80211_IFTYPE_AP; |
| 1221 | |
| 1222 | err = sta_info_insert_rcu(sta); |
| 1223 | if (err) { |
| 1224 | rcu_read_unlock(); |
| 1225 | return err; |
| 1226 | } |
| 1227 | |
| 1228 | if (layer2_update) |
| 1229 | ieee80211_send_layer2_update(sta); |
| 1230 | |
| 1231 | rcu_read_unlock(); |
| 1232 | |
| 1233 | return 0; |
| 1234 | } |
| 1235 | |
| 1236 | static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, |
| 1237 | const u8 *mac) |
| 1238 | { |
| 1239 | struct ieee80211_sub_if_data *sdata; |
| 1240 | |
| 1241 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 1242 | |
| 1243 | if (mac) |
| 1244 | return sta_info_destroy_addr_bss(sdata, mac); |
| 1245 | |
| 1246 | sta_info_flush(sdata); |
| 1247 | return 0; |
| 1248 | } |
| 1249 | |
| 1250 | static int ieee80211_change_station(struct wiphy *wiphy, |
| 1251 | struct net_device *dev, const u8 *mac, |
| 1252 | struct station_parameters *params) |
| 1253 | { |
| 1254 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 1255 | struct ieee80211_local *local = wiphy_priv(wiphy); |
| 1256 | struct sta_info *sta; |
| 1257 | struct ieee80211_sub_if_data *vlansdata; |
| 1258 | enum cfg80211_station_type statype; |
| 1259 | int err; |
| 1260 | |
| 1261 | mutex_lock(&local->sta_mtx); |
| 1262 | |
| 1263 | sta = sta_info_get_bss(sdata, mac); |
| 1264 | if (!sta) { |
| 1265 | err = -ENOENT; |
| 1266 | goto out_err; |
| 1267 | } |
| 1268 | |
| 1269 | switch (sdata->vif.type) { |
| 1270 | case NL80211_IFTYPE_MESH_POINT: |
| 1271 | if (sdata->u.mesh.user_mpm) |
| 1272 | statype = CFG80211_STA_MESH_PEER_USER; |
| 1273 | else |
| 1274 | statype = CFG80211_STA_MESH_PEER_KERNEL; |
| 1275 | break; |
| 1276 | case NL80211_IFTYPE_ADHOC: |
| 1277 | statype = CFG80211_STA_IBSS; |
| 1278 | break; |
| 1279 | case NL80211_IFTYPE_STATION: |
| 1280 | if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { |
| 1281 | statype = CFG80211_STA_AP_STA; |
| 1282 | break; |
| 1283 | } |
| 1284 | if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) |
| 1285 | statype = CFG80211_STA_TDLS_PEER_ACTIVE; |
| 1286 | else |
| 1287 | statype = CFG80211_STA_TDLS_PEER_SETUP; |
| 1288 | break; |
| 1289 | case NL80211_IFTYPE_AP: |
| 1290 | case NL80211_IFTYPE_AP_VLAN: |
| 1291 | statype = CFG80211_STA_AP_CLIENT; |
| 1292 | break; |
| 1293 | default: |
| 1294 | err = -EOPNOTSUPP; |
| 1295 | goto out_err; |
| 1296 | } |
| 1297 | |
| 1298 | err = cfg80211_check_station_change(wiphy, params, statype); |
| 1299 | if (err) |
| 1300 | goto out_err; |
| 1301 | |
| 1302 | if (params->vlan && params->vlan != sta->sdata->dev) { |
| 1303 | bool prev_4addr = false; |
| 1304 | bool new_4addr = false; |
| 1305 | |
| 1306 | vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); |
| 1307 | |
| 1308 | if (params->vlan->ieee80211_ptr->use_4addr) { |
| 1309 | if (vlansdata->u.vlan.sta) { |
| 1310 | err = -EBUSY; |
| 1311 | goto out_err; |
| 1312 | } |
| 1313 | |
| 1314 | rcu_assign_pointer(vlansdata->u.vlan.sta, sta); |
| 1315 | new_4addr = true; |
| 1316 | } |
| 1317 | |
| 1318 | if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && |
| 1319 | sta->sdata->u.vlan.sta) { |
| 1320 | RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); |
| 1321 | prev_4addr = true; |
| 1322 | } |
| 1323 | |
| 1324 | sta->sdata = vlansdata; |
| 1325 | |
| 1326 | if (sta->sta_state == IEEE80211_STA_AUTHORIZED && |
| 1327 | prev_4addr != new_4addr) { |
| 1328 | if (new_4addr) |
| 1329 | atomic_dec(&sta->sdata->bss->num_mcast_sta); |
| 1330 | else |
| 1331 | atomic_inc(&sta->sdata->bss->num_mcast_sta); |
| 1332 | } |
| 1333 | |
| 1334 | ieee80211_send_layer2_update(sta); |
| 1335 | } |
| 1336 | |
| 1337 | err = sta_apply_parameters(local, sta, params); |
| 1338 | if (err) |
| 1339 | goto out_err; |
| 1340 | |
| 1341 | /* When peer becomes authorized, init rate control as well */ |
| 1342 | if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && |
| 1343 | test_sta_flag(sta, WLAN_STA_AUTHORIZED)) |
| 1344 | rate_control_rate_init(sta); |
| 1345 | |
| 1346 | mutex_unlock(&local->sta_mtx); |
| 1347 | |
| 1348 | if ((sdata->vif.type == NL80211_IFTYPE_AP || |
| 1349 | sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && |
| 1350 | sta->known_smps_mode != sta->sdata->bss->req_smps && |
| 1351 | test_sta_flag(sta, WLAN_STA_AUTHORIZED) && |
| 1352 | sta_info_tx_streams(sta) != 1) { |
| 1353 | ht_dbg(sta->sdata, |
| 1354 | "%pM just authorized and MIMO capable - update SMPS\n", |
| 1355 | sta->sta.addr); |
| 1356 | ieee80211_send_smps_action(sta->sdata, |
| 1357 | sta->sdata->bss->req_smps, |
| 1358 | sta->sta.addr, |
| 1359 | sta->sdata->vif.bss_conf.bssid); |
| 1360 | } |
| 1361 | |
| 1362 | if (sdata->vif.type == NL80211_IFTYPE_STATION && |
| 1363 | params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { |
| 1364 | ieee80211_recalc_ps(local, -1); |
| 1365 | ieee80211_recalc_ps_vif(sdata); |
| 1366 | } |
| 1367 | |
| 1368 | return 0; |
| 1369 | out_err: |
| 1370 | mutex_unlock(&local->sta_mtx); |
| 1371 | return err; |
| 1372 | } |
| 1373 | |
| 1374 | #ifdef CONFIG_MAC80211_MESH |
| 1375 | static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, |
| 1376 | const u8 *dst, const u8 *next_hop) |
| 1377 | { |
| 1378 | struct ieee80211_sub_if_data *sdata; |
| 1379 | struct mesh_path *mpath; |
| 1380 | struct sta_info *sta; |
| 1381 | |
| 1382 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 1383 | |
| 1384 | rcu_read_lock(); |
| 1385 | sta = sta_info_get(sdata, next_hop); |
| 1386 | if (!sta) { |
| 1387 | rcu_read_unlock(); |
| 1388 | return -ENOENT; |
| 1389 | } |
| 1390 | |
| 1391 | mpath = mesh_path_add(sdata, dst); |
| 1392 | if (IS_ERR(mpath)) { |
| 1393 | rcu_read_unlock(); |
| 1394 | return PTR_ERR(mpath); |
| 1395 | } |
| 1396 | |
| 1397 | mesh_path_fix_nexthop(mpath, sta); |
| 1398 | |
| 1399 | rcu_read_unlock(); |
| 1400 | return 0; |
| 1401 | } |
| 1402 | |
| 1403 | static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, |
| 1404 | const u8 *dst) |
| 1405 | { |
| 1406 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 1407 | |
| 1408 | if (dst) |
| 1409 | return mesh_path_del(sdata, dst); |
| 1410 | |
| 1411 | mesh_path_flush_by_iface(sdata); |
| 1412 | return 0; |
| 1413 | } |
| 1414 | |
| 1415 | static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, |
| 1416 | const u8 *dst, const u8 *next_hop) |
| 1417 | { |
| 1418 | struct ieee80211_sub_if_data *sdata; |
| 1419 | struct mesh_path *mpath; |
| 1420 | struct sta_info *sta; |
| 1421 | |
| 1422 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 1423 | |
| 1424 | rcu_read_lock(); |
| 1425 | |
| 1426 | sta = sta_info_get(sdata, next_hop); |
| 1427 | if (!sta) { |
| 1428 | rcu_read_unlock(); |
| 1429 | return -ENOENT; |
| 1430 | } |
| 1431 | |
| 1432 | mpath = mesh_path_lookup(sdata, dst); |
| 1433 | if (!mpath) { |
| 1434 | rcu_read_unlock(); |
| 1435 | return -ENOENT; |
| 1436 | } |
| 1437 | |
| 1438 | mesh_path_fix_nexthop(mpath, sta); |
| 1439 | |
| 1440 | rcu_read_unlock(); |
| 1441 | return 0; |
| 1442 | } |
| 1443 | |
| 1444 | static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, |
| 1445 | struct mpath_info *pinfo) |
| 1446 | { |
| 1447 | struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); |
| 1448 | |
| 1449 | if (next_hop_sta) |
| 1450 | memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); |
| 1451 | else |
| 1452 | memset(next_hop, 0, ETH_ALEN); |
| 1453 | |
| 1454 | memset(pinfo, 0, sizeof(*pinfo)); |
| 1455 | |
| 1456 | pinfo->generation = mesh_paths_generation; |
| 1457 | |
| 1458 | pinfo->filled = MPATH_INFO_FRAME_QLEN | |
| 1459 | MPATH_INFO_SN | |
| 1460 | MPATH_INFO_METRIC | |
| 1461 | MPATH_INFO_EXPTIME | |
| 1462 | MPATH_INFO_DISCOVERY_TIMEOUT | |
| 1463 | MPATH_INFO_DISCOVERY_RETRIES | |
| 1464 | MPATH_INFO_FLAGS; |
| 1465 | |
| 1466 | pinfo->frame_qlen = mpath->frame_queue.qlen; |
| 1467 | pinfo->sn = mpath->sn; |
| 1468 | pinfo->metric = mpath->metric; |
| 1469 | if (time_before(jiffies, mpath->exp_time)) |
| 1470 | pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); |
| 1471 | pinfo->discovery_timeout = |
| 1472 | jiffies_to_msecs(mpath->discovery_timeout); |
| 1473 | pinfo->discovery_retries = mpath->discovery_retries; |
| 1474 | if (mpath->flags & MESH_PATH_ACTIVE) |
| 1475 | pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; |
| 1476 | if (mpath->flags & MESH_PATH_RESOLVING) |
| 1477 | pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; |
| 1478 | if (mpath->flags & MESH_PATH_SN_VALID) |
| 1479 | pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; |
| 1480 | if (mpath->flags & MESH_PATH_FIXED) |
| 1481 | pinfo->flags |= NL80211_MPATH_FLAG_FIXED; |
| 1482 | if (mpath->flags & MESH_PATH_RESOLVED) |
| 1483 | pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; |
| 1484 | } |
| 1485 | |
| 1486 | static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, |
| 1487 | u8 *dst, u8 *next_hop, struct mpath_info *pinfo) |
| 1488 | |
| 1489 | { |
| 1490 | struct ieee80211_sub_if_data *sdata; |
| 1491 | struct mesh_path *mpath; |
| 1492 | |
| 1493 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 1494 | |
| 1495 | rcu_read_lock(); |
| 1496 | mpath = mesh_path_lookup(sdata, dst); |
| 1497 | if (!mpath) { |
| 1498 | rcu_read_unlock(); |
| 1499 | return -ENOENT; |
| 1500 | } |
| 1501 | memcpy(dst, mpath->dst, ETH_ALEN); |
| 1502 | mpath_set_pinfo(mpath, next_hop, pinfo); |
| 1503 | rcu_read_unlock(); |
| 1504 | return 0; |
| 1505 | } |
| 1506 | |
| 1507 | static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, |
| 1508 | int idx, u8 *dst, u8 *next_hop, |
| 1509 | struct mpath_info *pinfo) |
| 1510 | { |
| 1511 | struct ieee80211_sub_if_data *sdata; |
| 1512 | struct mesh_path *mpath; |
| 1513 | |
| 1514 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 1515 | |
| 1516 | rcu_read_lock(); |
| 1517 | mpath = mesh_path_lookup_by_idx(sdata, idx); |
| 1518 | if (!mpath) { |
| 1519 | rcu_read_unlock(); |
| 1520 | return -ENOENT; |
| 1521 | } |
| 1522 | memcpy(dst, mpath->dst, ETH_ALEN); |
| 1523 | mpath_set_pinfo(mpath, next_hop, pinfo); |
| 1524 | rcu_read_unlock(); |
| 1525 | return 0; |
| 1526 | } |
| 1527 | |
| 1528 | static int ieee80211_get_mesh_config(struct wiphy *wiphy, |
| 1529 | struct net_device *dev, |
| 1530 | struct mesh_config *conf) |
| 1531 | { |
| 1532 | struct ieee80211_sub_if_data *sdata; |
| 1533 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 1534 | |
| 1535 | memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); |
| 1536 | return 0; |
| 1537 | } |
| 1538 | |
| 1539 | static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) |
| 1540 | { |
| 1541 | return (mask >> (parm-1)) & 0x1; |
| 1542 | } |
| 1543 | |
| 1544 | static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, |
| 1545 | const struct mesh_setup *setup) |
| 1546 | { |
| 1547 | u8 *new_ie; |
| 1548 | const u8 *old_ie; |
| 1549 | struct ieee80211_sub_if_data *sdata = container_of(ifmsh, |
| 1550 | struct ieee80211_sub_if_data, u.mesh); |
| 1551 | |
| 1552 | /* allocate information elements */ |
| 1553 | new_ie = NULL; |
| 1554 | old_ie = ifmsh->ie; |
| 1555 | |
| 1556 | if (setup->ie_len) { |
| 1557 | new_ie = kmemdup(setup->ie, setup->ie_len, |
| 1558 | GFP_KERNEL); |
| 1559 | if (!new_ie) |
| 1560 | return -ENOMEM; |
| 1561 | } |
| 1562 | ifmsh->ie_len = setup->ie_len; |
| 1563 | ifmsh->ie = new_ie; |
| 1564 | kfree(old_ie); |
| 1565 | |
| 1566 | /* now copy the rest of the setup parameters */ |
| 1567 | ifmsh->mesh_id_len = setup->mesh_id_len; |
| 1568 | memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); |
| 1569 | ifmsh->mesh_sp_id = setup->sync_method; |
| 1570 | ifmsh->mesh_pp_id = setup->path_sel_proto; |
| 1571 | ifmsh->mesh_pm_id = setup->path_metric; |
| 1572 | ifmsh->user_mpm = setup->user_mpm; |
| 1573 | ifmsh->mesh_auth_id = setup->auth_id; |
| 1574 | ifmsh->security = IEEE80211_MESH_SEC_NONE; |
| 1575 | if (setup->is_authenticated) |
| 1576 | ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; |
| 1577 | if (setup->is_secure) |
| 1578 | ifmsh->security |= IEEE80211_MESH_SEC_SECURED; |
| 1579 | |
| 1580 | /* mcast rate setting in Mesh Node */ |
| 1581 | memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, |
| 1582 | sizeof(setup->mcast_rate)); |
| 1583 | sdata->vif.bss_conf.basic_rates = setup->basic_rates; |
| 1584 | |
| 1585 | sdata->vif.bss_conf.beacon_int = setup->beacon_interval; |
| 1586 | sdata->vif.bss_conf.dtim_period = setup->dtim_period; |
| 1587 | |
| 1588 | return 0; |
| 1589 | } |
| 1590 | |
| 1591 | static int ieee80211_update_mesh_config(struct wiphy *wiphy, |
| 1592 | struct net_device *dev, u32 mask, |
| 1593 | const struct mesh_config *nconf) |
| 1594 | { |
| 1595 | struct mesh_config *conf; |
| 1596 | struct ieee80211_sub_if_data *sdata; |
| 1597 | struct ieee80211_if_mesh *ifmsh; |
| 1598 | |
| 1599 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 1600 | ifmsh = &sdata->u.mesh; |
| 1601 | |
| 1602 | /* Set the config options which we are interested in setting */ |
| 1603 | conf = &(sdata->u.mesh.mshcfg); |
| 1604 | if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) |
| 1605 | conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; |
| 1606 | if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) |
| 1607 | conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; |
| 1608 | if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) |
| 1609 | conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; |
| 1610 | if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) |
| 1611 | conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; |
| 1612 | if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) |
| 1613 | conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; |
| 1614 | if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) |
| 1615 | conf->dot11MeshTTL = nconf->dot11MeshTTL; |
| 1616 | if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) |
| 1617 | conf->element_ttl = nconf->element_ttl; |
| 1618 | if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { |
| 1619 | if (ifmsh->user_mpm) |
| 1620 | return -EBUSY; |
| 1621 | conf->auto_open_plinks = nconf->auto_open_plinks; |
| 1622 | } |
| 1623 | if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) |
| 1624 | conf->dot11MeshNbrOffsetMaxNeighbor = |
| 1625 | nconf->dot11MeshNbrOffsetMaxNeighbor; |
| 1626 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) |
| 1627 | conf->dot11MeshHWMPmaxPREQretries = |
| 1628 | nconf->dot11MeshHWMPmaxPREQretries; |
| 1629 | if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) |
| 1630 | conf->path_refresh_time = nconf->path_refresh_time; |
| 1631 | if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) |
| 1632 | conf->min_discovery_timeout = nconf->min_discovery_timeout; |
| 1633 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) |
| 1634 | conf->dot11MeshHWMPactivePathTimeout = |
| 1635 | nconf->dot11MeshHWMPactivePathTimeout; |
| 1636 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) |
| 1637 | conf->dot11MeshHWMPpreqMinInterval = |
| 1638 | nconf->dot11MeshHWMPpreqMinInterval; |
| 1639 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) |
| 1640 | conf->dot11MeshHWMPperrMinInterval = |
| 1641 | nconf->dot11MeshHWMPperrMinInterval; |
| 1642 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, |
| 1643 | mask)) |
| 1644 | conf->dot11MeshHWMPnetDiameterTraversalTime = |
| 1645 | nconf->dot11MeshHWMPnetDiameterTraversalTime; |
| 1646 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { |
| 1647 | conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; |
| 1648 | ieee80211_mesh_root_setup(ifmsh); |
| 1649 | } |
| 1650 | if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { |
| 1651 | /* our current gate announcement implementation rides on root |
| 1652 | * announcements, so require this ifmsh to also be a root node |
| 1653 | * */ |
| 1654 | if (nconf->dot11MeshGateAnnouncementProtocol && |
| 1655 | !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { |
| 1656 | conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; |
| 1657 | ieee80211_mesh_root_setup(ifmsh); |
| 1658 | } |
| 1659 | conf->dot11MeshGateAnnouncementProtocol = |
| 1660 | nconf->dot11MeshGateAnnouncementProtocol; |
| 1661 | } |
| 1662 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) |
| 1663 | conf->dot11MeshHWMPRannInterval = |
| 1664 | nconf->dot11MeshHWMPRannInterval; |
| 1665 | if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) |
| 1666 | conf->dot11MeshForwarding = nconf->dot11MeshForwarding; |
| 1667 | if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { |
| 1668 | /* our RSSI threshold implementation is supported only for |
| 1669 | * devices that report signal in dBm. |
| 1670 | */ |
| 1671 | if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM)) |
| 1672 | return -ENOTSUPP; |
| 1673 | conf->rssi_threshold = nconf->rssi_threshold; |
| 1674 | } |
| 1675 | if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { |
| 1676 | conf->ht_opmode = nconf->ht_opmode; |
| 1677 | sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; |
| 1678 | ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); |
| 1679 | } |
| 1680 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) |
| 1681 | conf->dot11MeshHWMPactivePathToRootTimeout = |
| 1682 | nconf->dot11MeshHWMPactivePathToRootTimeout; |
| 1683 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) |
| 1684 | conf->dot11MeshHWMProotInterval = |
| 1685 | nconf->dot11MeshHWMProotInterval; |
| 1686 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) |
| 1687 | conf->dot11MeshHWMPconfirmationInterval = |
| 1688 | nconf->dot11MeshHWMPconfirmationInterval; |
| 1689 | if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { |
| 1690 | conf->power_mode = nconf->power_mode; |
| 1691 | ieee80211_mps_local_status_update(sdata); |
| 1692 | } |
| 1693 | if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) |
| 1694 | conf->dot11MeshAwakeWindowDuration = |
| 1695 | nconf->dot11MeshAwakeWindowDuration; |
| 1696 | if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) |
| 1697 | conf->plink_timeout = nconf->plink_timeout; |
| 1698 | ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); |
| 1699 | return 0; |
| 1700 | } |
| 1701 | |
| 1702 | static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, |
| 1703 | const struct mesh_config *conf, |
| 1704 | const struct mesh_setup *setup) |
| 1705 | { |
| 1706 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 1707 | struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; |
| 1708 | int err; |
| 1709 | |
| 1710 | memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); |
| 1711 | err = copy_mesh_setup(ifmsh, setup); |
| 1712 | if (err) |
| 1713 | return err; |
| 1714 | |
| 1715 | /* can mesh use other SMPS modes? */ |
| 1716 | sdata->smps_mode = IEEE80211_SMPS_OFF; |
| 1717 | sdata->needed_rx_chains = sdata->local->rx_chains; |
| 1718 | |
| 1719 | mutex_lock(&sdata->local->mtx); |
| 1720 | err = ieee80211_vif_use_channel(sdata, &setup->chandef, |
| 1721 | IEEE80211_CHANCTX_SHARED); |
| 1722 | mutex_unlock(&sdata->local->mtx); |
| 1723 | if (err) |
| 1724 | return err; |
| 1725 | |
| 1726 | return ieee80211_start_mesh(sdata); |
| 1727 | } |
| 1728 | |
| 1729 | static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) |
| 1730 | { |
| 1731 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 1732 | |
| 1733 | ieee80211_stop_mesh(sdata); |
| 1734 | mutex_lock(&sdata->local->mtx); |
| 1735 | ieee80211_vif_release_channel(sdata); |
| 1736 | mutex_unlock(&sdata->local->mtx); |
| 1737 | |
| 1738 | return 0; |
| 1739 | } |
| 1740 | #endif |
| 1741 | |
| 1742 | static int ieee80211_change_bss(struct wiphy *wiphy, |
| 1743 | struct net_device *dev, |
| 1744 | struct bss_parameters *params) |
| 1745 | { |
| 1746 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 1747 | enum ieee80211_band band; |
| 1748 | u32 changed = 0; |
| 1749 | |
| 1750 | if (!sdata_dereference(sdata->u.ap.beacon, sdata)) |
| 1751 | return -ENOENT; |
| 1752 | |
| 1753 | band = ieee80211_get_sdata_band(sdata); |
| 1754 | |
| 1755 | if (params->use_cts_prot >= 0) { |
| 1756 | sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; |
| 1757 | changed |= BSS_CHANGED_ERP_CTS_PROT; |
| 1758 | } |
| 1759 | if (params->use_short_preamble >= 0) { |
| 1760 | sdata->vif.bss_conf.use_short_preamble = |
| 1761 | params->use_short_preamble; |
| 1762 | changed |= BSS_CHANGED_ERP_PREAMBLE; |
| 1763 | } |
| 1764 | |
| 1765 | if (!sdata->vif.bss_conf.use_short_slot && |
| 1766 | band == IEEE80211_BAND_5GHZ) { |
| 1767 | sdata->vif.bss_conf.use_short_slot = true; |
| 1768 | changed |= BSS_CHANGED_ERP_SLOT; |
| 1769 | } |
| 1770 | |
| 1771 | if (params->use_short_slot_time >= 0) { |
| 1772 | sdata->vif.bss_conf.use_short_slot = |
| 1773 | params->use_short_slot_time; |
| 1774 | changed |= BSS_CHANGED_ERP_SLOT; |
| 1775 | } |
| 1776 | |
| 1777 | if (params->basic_rates) { |
| 1778 | ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, |
| 1779 | wiphy->bands[band], |
| 1780 | params->basic_rates, |
| 1781 | params->basic_rates_len, |
| 1782 | &sdata->vif.bss_conf.basic_rates); |
| 1783 | changed |= BSS_CHANGED_BASIC_RATES; |
| 1784 | } |
| 1785 | |
| 1786 | if (params->ap_isolate >= 0) { |
| 1787 | if (params->ap_isolate) |
| 1788 | sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; |
| 1789 | else |
| 1790 | sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; |
| 1791 | } |
| 1792 | |
| 1793 | if (params->ht_opmode >= 0) { |
| 1794 | sdata->vif.bss_conf.ht_operation_mode = |
| 1795 | (u16) params->ht_opmode; |
| 1796 | changed |= BSS_CHANGED_HT; |
| 1797 | } |
| 1798 | |
| 1799 | if (params->p2p_ctwindow >= 0) { |
| 1800 | sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= |
| 1801 | ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; |
| 1802 | sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= |
| 1803 | params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; |
| 1804 | changed |= BSS_CHANGED_P2P_PS; |
| 1805 | } |
| 1806 | |
| 1807 | if (params->p2p_opp_ps > 0) { |
| 1808 | sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= |
| 1809 | IEEE80211_P2P_OPPPS_ENABLE_BIT; |
| 1810 | changed |= BSS_CHANGED_P2P_PS; |
| 1811 | } else if (params->p2p_opp_ps == 0) { |
| 1812 | sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= |
| 1813 | ~IEEE80211_P2P_OPPPS_ENABLE_BIT; |
| 1814 | changed |= BSS_CHANGED_P2P_PS; |
| 1815 | } |
| 1816 | |
| 1817 | ieee80211_bss_info_change_notify(sdata, changed); |
| 1818 | |
| 1819 | return 0; |
| 1820 | } |
| 1821 | |
| 1822 | static int ieee80211_set_txq_params(struct wiphy *wiphy, |
| 1823 | struct net_device *dev, |
| 1824 | struct ieee80211_txq_params *params) |
| 1825 | { |
| 1826 | struct ieee80211_local *local = wiphy_priv(wiphy); |
| 1827 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 1828 | struct ieee80211_tx_queue_params p; |
| 1829 | |
| 1830 | if (!local->ops->conf_tx) |
| 1831 | return -EOPNOTSUPP; |
| 1832 | |
| 1833 | if (local->hw.queues < IEEE80211_NUM_ACS) |
| 1834 | return -EOPNOTSUPP; |
| 1835 | |
| 1836 | memset(&p, 0, sizeof(p)); |
| 1837 | p.aifs = params->aifs; |
| 1838 | p.cw_max = params->cwmax; |
| 1839 | p.cw_min = params->cwmin; |
| 1840 | p.txop = params->txop; |
| 1841 | |
| 1842 | /* |
| 1843 | * Setting tx queue params disables u-apsd because it's only |
| 1844 | * called in master mode. |
| 1845 | */ |
| 1846 | p.uapsd = false; |
| 1847 | |
| 1848 | sdata->tx_conf[params->ac] = p; |
| 1849 | if (drv_conf_tx(local, sdata, params->ac, &p)) { |
| 1850 | wiphy_debug(local->hw.wiphy, |
| 1851 | "failed to set TX queue parameters for AC %d\n", |
| 1852 | params->ac); |
| 1853 | return -EINVAL; |
| 1854 | } |
| 1855 | |
| 1856 | ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); |
| 1857 | |
| 1858 | return 0; |
| 1859 | } |
| 1860 | |
| 1861 | #ifdef CONFIG_PM |
| 1862 | static int ieee80211_suspend(struct wiphy *wiphy, |
| 1863 | struct cfg80211_wowlan *wowlan) |
| 1864 | { |
| 1865 | return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); |
| 1866 | } |
| 1867 | |
| 1868 | static int ieee80211_resume(struct wiphy *wiphy) |
| 1869 | { |
| 1870 | return __ieee80211_resume(wiphy_priv(wiphy)); |
| 1871 | } |
| 1872 | #else |
| 1873 | #define ieee80211_suspend NULL |
| 1874 | #define ieee80211_resume NULL |
| 1875 | #endif |
| 1876 | |
| 1877 | static int ieee80211_scan(struct wiphy *wiphy, |
| 1878 | struct cfg80211_scan_request *req) |
| 1879 | { |
| 1880 | struct ieee80211_sub_if_data *sdata; |
| 1881 | |
| 1882 | sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); |
| 1883 | |
| 1884 | switch (ieee80211_vif_type_p2p(&sdata->vif)) { |
| 1885 | case NL80211_IFTYPE_STATION: |
| 1886 | case NL80211_IFTYPE_ADHOC: |
| 1887 | case NL80211_IFTYPE_MESH_POINT: |
| 1888 | case NL80211_IFTYPE_P2P_CLIENT: |
| 1889 | case NL80211_IFTYPE_P2P_DEVICE: |
| 1890 | break; |
| 1891 | case NL80211_IFTYPE_P2P_GO: |
| 1892 | if (sdata->local->ops->hw_scan) |
| 1893 | break; |
| 1894 | /* |
| 1895 | * FIXME: implement NoA while scanning in software, |
| 1896 | * for now fall through to allow scanning only when |
| 1897 | * beaconing hasn't been configured yet |
| 1898 | */ |
| 1899 | case NL80211_IFTYPE_AP: |
| 1900 | /* |
| 1901 | * If the scan has been forced (and the driver supports |
| 1902 | * forcing), don't care about being beaconing already. |
| 1903 | * This will create problems to the attached stations (e.g. all |
| 1904 | * the frames sent while scanning on other channel will be |
| 1905 | * lost) |
| 1906 | */ |
| 1907 | if (sdata->u.ap.beacon && |
| 1908 | (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || |
| 1909 | !(req->flags & NL80211_SCAN_FLAG_AP))) |
| 1910 | return -EOPNOTSUPP; |
| 1911 | break; |
| 1912 | default: |
| 1913 | return -EOPNOTSUPP; |
| 1914 | } |
| 1915 | |
| 1916 | return ieee80211_request_scan(sdata, req); |
| 1917 | } |
| 1918 | |
| 1919 | static int |
| 1920 | ieee80211_sched_scan_start(struct wiphy *wiphy, |
| 1921 | struct net_device *dev, |
| 1922 | struct cfg80211_sched_scan_request *req) |
| 1923 | { |
| 1924 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 1925 | |
| 1926 | if (!sdata->local->ops->sched_scan_start) |
| 1927 | return -EOPNOTSUPP; |
| 1928 | |
| 1929 | return ieee80211_request_sched_scan_start(sdata, req); |
| 1930 | } |
| 1931 | |
| 1932 | static int |
| 1933 | ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev) |
| 1934 | { |
| 1935 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 1936 | |
| 1937 | if (!sdata->local->ops->sched_scan_stop) |
| 1938 | return -EOPNOTSUPP; |
| 1939 | |
| 1940 | return ieee80211_request_sched_scan_stop(sdata); |
| 1941 | } |
| 1942 | |
| 1943 | static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, |
| 1944 | struct cfg80211_auth_request *req) |
| 1945 | { |
| 1946 | return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); |
| 1947 | } |
| 1948 | |
| 1949 | static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, |
| 1950 | struct cfg80211_assoc_request *req) |
| 1951 | { |
| 1952 | return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); |
| 1953 | } |
| 1954 | |
| 1955 | static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, |
| 1956 | struct cfg80211_deauth_request *req) |
| 1957 | { |
| 1958 | return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); |
| 1959 | } |
| 1960 | |
| 1961 | static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, |
| 1962 | struct cfg80211_disassoc_request *req) |
| 1963 | { |
| 1964 | return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); |
| 1965 | } |
| 1966 | |
| 1967 | static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, |
| 1968 | struct cfg80211_ibss_params *params) |
| 1969 | { |
| 1970 | return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); |
| 1971 | } |
| 1972 | |
| 1973 | static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) |
| 1974 | { |
| 1975 | return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); |
| 1976 | } |
| 1977 | |
| 1978 | static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, |
| 1979 | int rate[IEEE80211_NUM_BANDS]) |
| 1980 | { |
| 1981 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 1982 | |
| 1983 | memcpy(sdata->vif.bss_conf.mcast_rate, rate, |
| 1984 | sizeof(int) * IEEE80211_NUM_BANDS); |
| 1985 | |
| 1986 | return 0; |
| 1987 | } |
| 1988 | |
| 1989 | static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) |
| 1990 | { |
| 1991 | struct ieee80211_local *local = wiphy_priv(wiphy); |
| 1992 | int err; |
| 1993 | |
| 1994 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { |
| 1995 | err = drv_set_frag_threshold(local, wiphy->frag_threshold); |
| 1996 | |
| 1997 | if (err) |
| 1998 | return err; |
| 1999 | } |
| 2000 | |
| 2001 | if (changed & WIPHY_PARAM_COVERAGE_CLASS) { |
| 2002 | err = drv_set_coverage_class(local, wiphy->coverage_class); |
| 2003 | |
| 2004 | if (err) |
| 2005 | return err; |
| 2006 | } |
| 2007 | |
| 2008 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) { |
| 2009 | err = drv_set_rts_threshold(local, wiphy->rts_threshold); |
| 2010 | |
| 2011 | if (err) |
| 2012 | return err; |
| 2013 | } |
| 2014 | |
| 2015 | if (changed & WIPHY_PARAM_RETRY_SHORT) { |
| 2016 | if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) |
| 2017 | return -EINVAL; |
| 2018 | local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; |
| 2019 | } |
| 2020 | if (changed & WIPHY_PARAM_RETRY_LONG) { |
| 2021 | if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) |
| 2022 | return -EINVAL; |
| 2023 | local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; |
| 2024 | } |
| 2025 | if (changed & |
| 2026 | (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) |
| 2027 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); |
| 2028 | |
| 2029 | return 0; |
| 2030 | } |
| 2031 | |
| 2032 | static int ieee80211_set_tx_power(struct wiphy *wiphy, |
| 2033 | struct wireless_dev *wdev, |
| 2034 | enum nl80211_tx_power_setting type, int mbm) |
| 2035 | { |
| 2036 | struct ieee80211_local *local = wiphy_priv(wiphy); |
| 2037 | struct ieee80211_sub_if_data *sdata; |
| 2038 | |
| 2039 | if (wdev) { |
| 2040 | sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| 2041 | |
| 2042 | switch (type) { |
| 2043 | case NL80211_TX_POWER_AUTOMATIC: |
| 2044 | sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; |
| 2045 | break; |
| 2046 | case NL80211_TX_POWER_LIMITED: |
| 2047 | case NL80211_TX_POWER_FIXED: |
| 2048 | if (mbm < 0 || (mbm % 100)) |
| 2049 | return -EOPNOTSUPP; |
| 2050 | sdata->user_power_level = MBM_TO_DBM(mbm); |
| 2051 | break; |
| 2052 | } |
| 2053 | |
| 2054 | ieee80211_recalc_txpower(sdata); |
| 2055 | |
| 2056 | return 0; |
| 2057 | } |
| 2058 | |
| 2059 | switch (type) { |
| 2060 | case NL80211_TX_POWER_AUTOMATIC: |
| 2061 | local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; |
| 2062 | break; |
| 2063 | case NL80211_TX_POWER_LIMITED: |
| 2064 | case NL80211_TX_POWER_FIXED: |
| 2065 | if (mbm < 0 || (mbm % 100)) |
| 2066 | return -EOPNOTSUPP; |
| 2067 | local->user_power_level = MBM_TO_DBM(mbm); |
| 2068 | break; |
| 2069 | } |
| 2070 | |
| 2071 | mutex_lock(&local->iflist_mtx); |
| 2072 | list_for_each_entry(sdata, &local->interfaces, list) |
| 2073 | sdata->user_power_level = local->user_power_level; |
| 2074 | list_for_each_entry(sdata, &local->interfaces, list) |
| 2075 | ieee80211_recalc_txpower(sdata); |
| 2076 | mutex_unlock(&local->iflist_mtx); |
| 2077 | |
| 2078 | return 0; |
| 2079 | } |
| 2080 | |
| 2081 | static int ieee80211_get_tx_power(struct wiphy *wiphy, |
| 2082 | struct wireless_dev *wdev, |
| 2083 | int *dbm) |
| 2084 | { |
| 2085 | struct ieee80211_local *local = wiphy_priv(wiphy); |
| 2086 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| 2087 | |
| 2088 | if (!local->use_chanctx) |
| 2089 | *dbm = local->hw.conf.power_level; |
| 2090 | else |
| 2091 | *dbm = sdata->vif.bss_conf.txpower; |
| 2092 | |
| 2093 | return 0; |
| 2094 | } |
| 2095 | |
| 2096 | static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, |
| 2097 | const u8 *addr) |
| 2098 | { |
| 2099 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 2100 | |
| 2101 | memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); |
| 2102 | |
| 2103 | return 0; |
| 2104 | } |
| 2105 | |
| 2106 | static void ieee80211_rfkill_poll(struct wiphy *wiphy) |
| 2107 | { |
| 2108 | struct ieee80211_local *local = wiphy_priv(wiphy); |
| 2109 | |
| 2110 | drv_rfkill_poll(local); |
| 2111 | } |
| 2112 | |
| 2113 | #ifdef CONFIG_NL80211_TESTMODE |
| 2114 | static int ieee80211_testmode_cmd(struct wiphy *wiphy, |
| 2115 | struct wireless_dev *wdev, |
| 2116 | void *data, int len) |
| 2117 | { |
| 2118 | struct ieee80211_local *local = wiphy_priv(wiphy); |
| 2119 | struct ieee80211_vif *vif = NULL; |
| 2120 | |
| 2121 | if (!local->ops->testmode_cmd) |
| 2122 | return -EOPNOTSUPP; |
| 2123 | |
| 2124 | if (wdev) { |
| 2125 | struct ieee80211_sub_if_data *sdata; |
| 2126 | |
| 2127 | sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| 2128 | if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) |
| 2129 | vif = &sdata->vif; |
| 2130 | } |
| 2131 | |
| 2132 | return local->ops->testmode_cmd(&local->hw, vif, data, len); |
| 2133 | } |
| 2134 | |
| 2135 | static int ieee80211_testmode_dump(struct wiphy *wiphy, |
| 2136 | struct sk_buff *skb, |
| 2137 | struct netlink_callback *cb, |
| 2138 | void *data, int len) |
| 2139 | { |
| 2140 | struct ieee80211_local *local = wiphy_priv(wiphy); |
| 2141 | |
| 2142 | if (!local->ops->testmode_dump) |
| 2143 | return -EOPNOTSUPP; |
| 2144 | |
| 2145 | return local->ops->testmode_dump(&local->hw, skb, cb, data, len); |
| 2146 | } |
| 2147 | #endif |
| 2148 | |
| 2149 | int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, |
| 2150 | enum ieee80211_smps_mode smps_mode) |
| 2151 | { |
| 2152 | struct sta_info *sta; |
| 2153 | enum ieee80211_smps_mode old_req; |
| 2154 | int i; |
| 2155 | |
| 2156 | if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) |
| 2157 | return -EINVAL; |
| 2158 | |
| 2159 | if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) |
| 2160 | return 0; |
| 2161 | |
| 2162 | old_req = sdata->u.ap.req_smps; |
| 2163 | sdata->u.ap.req_smps = smps_mode; |
| 2164 | |
| 2165 | /* AUTOMATIC doesn't mean much for AP - don't allow it */ |
| 2166 | if (old_req == smps_mode || |
| 2167 | smps_mode == IEEE80211_SMPS_AUTOMATIC) |
| 2168 | return 0; |
| 2169 | |
| 2170 | /* If no associated stations, there's no need to do anything */ |
| 2171 | if (!atomic_read(&sdata->u.ap.num_mcast_sta)) { |
| 2172 | sdata->smps_mode = smps_mode; |
| 2173 | ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); |
| 2174 | return 0; |
| 2175 | } |
| 2176 | |
| 2177 | ht_dbg(sdata, |
| 2178 | "SMSP %d requested in AP mode, sending Action frame to %d stations\n", |
| 2179 | smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); |
| 2180 | |
| 2181 | mutex_lock(&sdata->local->sta_mtx); |
| 2182 | for (i = 0; i < STA_HASH_SIZE; i++) { |
| 2183 | for (sta = rcu_dereference_protected(sdata->local->sta_hash[i], |
| 2184 | lockdep_is_held(&sdata->local->sta_mtx)); |
| 2185 | sta; |
| 2186 | sta = rcu_dereference_protected(sta->hnext, |
| 2187 | lockdep_is_held(&sdata->local->sta_mtx))) { |
| 2188 | /* |
| 2189 | * Only stations associated to our AP and |
| 2190 | * associated VLANs |
| 2191 | */ |
| 2192 | if (sta->sdata->bss != &sdata->u.ap) |
| 2193 | continue; |
| 2194 | |
| 2195 | /* This station doesn't support MIMO - skip it */ |
| 2196 | if (sta_info_tx_streams(sta) == 1) |
| 2197 | continue; |
| 2198 | |
| 2199 | /* |
| 2200 | * Don't wake up a STA just to send the action frame |
| 2201 | * unless we are getting more restrictive. |
| 2202 | */ |
| 2203 | if (test_sta_flag(sta, WLAN_STA_PS_STA) && |
| 2204 | !ieee80211_smps_is_restrictive(sta->known_smps_mode, |
| 2205 | smps_mode)) { |
| 2206 | ht_dbg(sdata, |
| 2207 | "Won't send SMPS to sleeping STA %pM\n", |
| 2208 | sta->sta.addr); |
| 2209 | continue; |
| 2210 | } |
| 2211 | |
| 2212 | /* |
| 2213 | * If the STA is not authorized, wait until it gets |
| 2214 | * authorized and the action frame will be sent then. |
| 2215 | */ |
| 2216 | if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) |
| 2217 | continue; |
| 2218 | |
| 2219 | ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); |
| 2220 | ieee80211_send_smps_action(sdata, smps_mode, |
| 2221 | sta->sta.addr, |
| 2222 | sdata->vif.bss_conf.bssid); |
| 2223 | } |
| 2224 | } |
| 2225 | mutex_unlock(&sdata->local->sta_mtx); |
| 2226 | |
| 2227 | sdata->smps_mode = smps_mode; |
| 2228 | ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); |
| 2229 | |
| 2230 | return 0; |
| 2231 | } |
| 2232 | |
| 2233 | int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, |
| 2234 | enum ieee80211_smps_mode smps_mode) |
| 2235 | { |
| 2236 | const u8 *ap; |
| 2237 | enum ieee80211_smps_mode old_req; |
| 2238 | int err; |
| 2239 | |
| 2240 | lockdep_assert_held(&sdata->wdev.mtx); |
| 2241 | |
| 2242 | if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) |
| 2243 | return -EINVAL; |
| 2244 | |
| 2245 | old_req = sdata->u.mgd.req_smps; |
| 2246 | sdata->u.mgd.req_smps = smps_mode; |
| 2247 | |
| 2248 | if (old_req == smps_mode && |
| 2249 | smps_mode != IEEE80211_SMPS_AUTOMATIC) |
| 2250 | return 0; |
| 2251 | |
| 2252 | /* |
| 2253 | * If not associated, or current association is not an HT |
| 2254 | * association, there's no need to do anything, just store |
| 2255 | * the new value until we associate. |
| 2256 | */ |
| 2257 | if (!sdata->u.mgd.associated || |
| 2258 | sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) |
| 2259 | return 0; |
| 2260 | |
| 2261 | ap = sdata->u.mgd.associated->bssid; |
| 2262 | |
| 2263 | if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { |
| 2264 | if (sdata->u.mgd.powersave) |
| 2265 | smps_mode = IEEE80211_SMPS_DYNAMIC; |
| 2266 | else |
| 2267 | smps_mode = IEEE80211_SMPS_OFF; |
| 2268 | } |
| 2269 | |
| 2270 | /* send SM PS frame to AP */ |
| 2271 | err = ieee80211_send_smps_action(sdata, smps_mode, |
| 2272 | ap, ap); |
| 2273 | if (err) |
| 2274 | sdata->u.mgd.req_smps = old_req; |
| 2275 | |
| 2276 | return err; |
| 2277 | } |
| 2278 | |
| 2279 | static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, |
| 2280 | bool enabled, int timeout) |
| 2281 | { |
| 2282 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 2283 | struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); |
| 2284 | |
| 2285 | if (sdata->vif.type != NL80211_IFTYPE_STATION) |
| 2286 | return -EOPNOTSUPP; |
| 2287 | |
| 2288 | if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS)) |
| 2289 | return -EOPNOTSUPP; |
| 2290 | |
| 2291 | if (enabled == sdata->u.mgd.powersave && |
| 2292 | timeout == local->dynamic_ps_forced_timeout) |
| 2293 | return 0; |
| 2294 | |
| 2295 | sdata->u.mgd.powersave = enabled; |
| 2296 | local->dynamic_ps_forced_timeout = timeout; |
| 2297 | |
| 2298 | /* no change, but if automatic follow powersave */ |
| 2299 | sdata_lock(sdata); |
| 2300 | __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); |
| 2301 | sdata_unlock(sdata); |
| 2302 | |
| 2303 | if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS) |
| 2304 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); |
| 2305 | |
| 2306 | ieee80211_recalc_ps(local, -1); |
| 2307 | ieee80211_recalc_ps_vif(sdata); |
| 2308 | |
| 2309 | return 0; |
| 2310 | } |
| 2311 | |
| 2312 | static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, |
| 2313 | struct net_device *dev, |
| 2314 | s32 rssi_thold, u32 rssi_hyst) |
| 2315 | { |
| 2316 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 2317 | struct ieee80211_vif *vif = &sdata->vif; |
| 2318 | struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; |
| 2319 | |
| 2320 | if (rssi_thold == bss_conf->cqm_rssi_thold && |
| 2321 | rssi_hyst == bss_conf->cqm_rssi_hyst) |
| 2322 | return 0; |
| 2323 | |
| 2324 | bss_conf->cqm_rssi_thold = rssi_thold; |
| 2325 | bss_conf->cqm_rssi_hyst = rssi_hyst; |
| 2326 | |
| 2327 | /* tell the driver upon association, unless already associated */ |
| 2328 | if (sdata->u.mgd.associated && |
| 2329 | sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) |
| 2330 | ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); |
| 2331 | |
| 2332 | return 0; |
| 2333 | } |
| 2334 | |
| 2335 | static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, |
| 2336 | struct net_device *dev, |
| 2337 | const u8 *addr, |
| 2338 | const struct cfg80211_bitrate_mask *mask) |
| 2339 | { |
| 2340 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 2341 | struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); |
| 2342 | int i, ret; |
| 2343 | |
| 2344 | if (!ieee80211_sdata_running(sdata)) |
| 2345 | return -ENETDOWN; |
| 2346 | |
| 2347 | if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) { |
| 2348 | ret = drv_set_bitrate_mask(local, sdata, mask); |
| 2349 | if (ret) |
| 2350 | return ret; |
| 2351 | } |
| 2352 | |
| 2353 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) { |
| 2354 | struct ieee80211_supported_band *sband = wiphy->bands[i]; |
| 2355 | int j; |
| 2356 | |
| 2357 | sdata->rc_rateidx_mask[i] = mask->control[i].legacy; |
| 2358 | memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, |
| 2359 | sizeof(mask->control[i].ht_mcs)); |
| 2360 | |
| 2361 | sdata->rc_has_mcs_mask[i] = false; |
| 2362 | if (!sband) |
| 2363 | continue; |
| 2364 | |
| 2365 | for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) |
| 2366 | if (~sdata->rc_rateidx_mcs_mask[i][j]) { |
| 2367 | sdata->rc_has_mcs_mask[i] = true; |
| 2368 | break; |
| 2369 | } |
| 2370 | } |
| 2371 | |
| 2372 | return 0; |
| 2373 | } |
| 2374 | |
| 2375 | static int ieee80211_start_roc_work(struct ieee80211_local *local, |
| 2376 | struct ieee80211_sub_if_data *sdata, |
| 2377 | struct ieee80211_channel *channel, |
| 2378 | unsigned int duration, u64 *cookie, |
| 2379 | struct sk_buff *txskb, |
| 2380 | enum ieee80211_roc_type type) |
| 2381 | { |
| 2382 | struct ieee80211_roc_work *roc, *tmp; |
| 2383 | bool queued = false; |
| 2384 | int ret; |
| 2385 | |
| 2386 | lockdep_assert_held(&local->mtx); |
| 2387 | |
| 2388 | if (local->use_chanctx && !local->ops->remain_on_channel) |
| 2389 | return -EOPNOTSUPP; |
| 2390 | |
| 2391 | roc = kzalloc(sizeof(*roc), GFP_KERNEL); |
| 2392 | if (!roc) |
| 2393 | return -ENOMEM; |
| 2394 | |
| 2395 | /* |
| 2396 | * If the duration is zero, then the driver |
| 2397 | * wouldn't actually do anything. Set it to |
| 2398 | * 10 for now. |
| 2399 | * |
| 2400 | * TODO: cancel the off-channel operation |
| 2401 | * when we get the SKB's TX status and |
| 2402 | * the wait time was zero before. |
| 2403 | */ |
| 2404 | if (!duration) |
| 2405 | duration = 10; |
| 2406 | |
| 2407 | roc->chan = channel; |
| 2408 | roc->duration = duration; |
| 2409 | roc->req_duration = duration; |
| 2410 | roc->frame = txskb; |
| 2411 | roc->type = type; |
| 2412 | roc->mgmt_tx_cookie = (unsigned long)txskb; |
| 2413 | roc->sdata = sdata; |
| 2414 | INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work); |
| 2415 | INIT_LIST_HEAD(&roc->dependents); |
| 2416 | |
| 2417 | /* |
| 2418 | * cookie is either the roc cookie (for normal roc) |
| 2419 | * or the SKB (for mgmt TX) |
| 2420 | */ |
| 2421 | if (!txskb) { |
| 2422 | /* local->mtx protects this */ |
| 2423 | local->roc_cookie_counter++; |
| 2424 | roc->cookie = local->roc_cookie_counter; |
| 2425 | /* wow, you wrapped 64 bits ... more likely a bug */ |
| 2426 | if (WARN_ON(roc->cookie == 0)) { |
| 2427 | roc->cookie = 1; |
| 2428 | local->roc_cookie_counter++; |
| 2429 | } |
| 2430 | *cookie = roc->cookie; |
| 2431 | } else { |
| 2432 | *cookie = (unsigned long)txskb; |
| 2433 | } |
| 2434 | |
| 2435 | /* if there's one pending or we're scanning, queue this one */ |
| 2436 | if (!list_empty(&local->roc_list) || |
| 2437 | local->scanning || local->radar_detect_enabled) |
| 2438 | goto out_check_combine; |
| 2439 | |
| 2440 | /* if not HW assist, just queue & schedule work */ |
| 2441 | if (!local->ops->remain_on_channel) { |
| 2442 | ieee80211_queue_delayed_work(&local->hw, &roc->work, 0); |
| 2443 | goto out_queue; |
| 2444 | } |
| 2445 | |
| 2446 | /* otherwise actually kick it off here (for error handling) */ |
| 2447 | |
| 2448 | ret = drv_remain_on_channel(local, sdata, channel, duration, type); |
| 2449 | if (ret) { |
| 2450 | kfree(roc); |
| 2451 | return ret; |
| 2452 | } |
| 2453 | |
| 2454 | roc->started = true; |
| 2455 | goto out_queue; |
| 2456 | |
| 2457 | out_check_combine: |
| 2458 | list_for_each_entry(tmp, &local->roc_list, list) { |
| 2459 | if (tmp->chan != channel || tmp->sdata != sdata) |
| 2460 | continue; |
| 2461 | |
| 2462 | /* |
| 2463 | * Extend this ROC if possible: |
| 2464 | * |
| 2465 | * If it hasn't started yet, just increase the duration |
| 2466 | * and add the new one to the list of dependents. |
| 2467 | * If the type of the new ROC has higher priority, modify the |
| 2468 | * type of the previous one to match that of the new one. |
| 2469 | */ |
| 2470 | if (!tmp->started) { |
| 2471 | list_add_tail(&roc->list, &tmp->dependents); |
| 2472 | tmp->duration = max(tmp->duration, roc->duration); |
| 2473 | tmp->type = max(tmp->type, roc->type); |
| 2474 | queued = true; |
| 2475 | break; |
| 2476 | } |
| 2477 | |
| 2478 | /* If it has already started, it's more difficult ... */ |
| 2479 | if (local->ops->remain_on_channel) { |
| 2480 | unsigned long j = jiffies; |
| 2481 | |
| 2482 | /* |
| 2483 | * In the offloaded ROC case, if it hasn't begun, add |
| 2484 | * this new one to the dependent list to be handled |
| 2485 | * when the master one begins. If it has begun, |
| 2486 | * check that there's still a minimum time left and |
| 2487 | * if so, start this one, transmitting the frame, but |
| 2488 | * add it to the list directly after this one with |
| 2489 | * a reduced time so we'll ask the driver to execute |
| 2490 | * it right after finishing the previous one, in the |
| 2491 | * hope that it'll also be executed right afterwards, |
| 2492 | * effectively extending the old one. |
| 2493 | * If there's no minimum time left, just add it to the |
| 2494 | * normal list. |
| 2495 | * TODO: the ROC type is ignored here, assuming that it |
| 2496 | * is better to immediately use the current ROC. |
| 2497 | */ |
| 2498 | if (!tmp->hw_begun) { |
| 2499 | list_add_tail(&roc->list, &tmp->dependents); |
| 2500 | queued = true; |
| 2501 | break; |
| 2502 | } |
| 2503 | |
| 2504 | if (time_before(j + IEEE80211_ROC_MIN_LEFT, |
| 2505 | tmp->hw_start_time + |
| 2506 | msecs_to_jiffies(tmp->duration))) { |
| 2507 | int new_dur; |
| 2508 | |
| 2509 | ieee80211_handle_roc_started(roc); |
| 2510 | |
| 2511 | new_dur = roc->duration - |
| 2512 | jiffies_to_msecs(tmp->hw_start_time + |
| 2513 | msecs_to_jiffies( |
| 2514 | tmp->duration) - |
| 2515 | j); |
| 2516 | |
| 2517 | if (new_dur > 0) { |
| 2518 | /* add right after tmp */ |
| 2519 | list_add(&roc->list, &tmp->list); |
| 2520 | } else { |
| 2521 | list_add_tail(&roc->list, |
| 2522 | &tmp->dependents); |
| 2523 | } |
| 2524 | queued = true; |
| 2525 | } |
| 2526 | } else if (del_timer_sync(&tmp->work.timer)) { |
| 2527 | unsigned long new_end; |
| 2528 | |
| 2529 | /* |
| 2530 | * In the software ROC case, cancel the timer, if |
| 2531 | * that fails then the finish work is already |
| 2532 | * queued/pending and thus we queue the new ROC |
| 2533 | * normally, if that succeeds then we can extend |
| 2534 | * the timer duration and TX the frame (if any.) |
| 2535 | */ |
| 2536 | |
| 2537 | list_add_tail(&roc->list, &tmp->dependents); |
| 2538 | queued = true; |
| 2539 | |
| 2540 | new_end = jiffies + msecs_to_jiffies(roc->duration); |
| 2541 | |
| 2542 | /* ok, it was started & we canceled timer */ |
| 2543 | if (time_after(new_end, tmp->work.timer.expires)) |
| 2544 | mod_timer(&tmp->work.timer, new_end); |
| 2545 | else |
| 2546 | add_timer(&tmp->work.timer); |
| 2547 | |
| 2548 | ieee80211_handle_roc_started(roc); |
| 2549 | } |
| 2550 | break; |
| 2551 | } |
| 2552 | |
| 2553 | out_queue: |
| 2554 | if (!queued) |
| 2555 | list_add_tail(&roc->list, &local->roc_list); |
| 2556 | |
| 2557 | return 0; |
| 2558 | } |
| 2559 | |
| 2560 | static int ieee80211_remain_on_channel(struct wiphy *wiphy, |
| 2561 | struct wireless_dev *wdev, |
| 2562 | struct ieee80211_channel *chan, |
| 2563 | unsigned int duration, |
| 2564 | u64 *cookie) |
| 2565 | { |
| 2566 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| 2567 | struct ieee80211_local *local = sdata->local; |
| 2568 | int ret; |
| 2569 | |
| 2570 | mutex_lock(&local->mtx); |
| 2571 | ret = ieee80211_start_roc_work(local, sdata, chan, |
| 2572 | duration, cookie, NULL, |
| 2573 | IEEE80211_ROC_TYPE_NORMAL); |
| 2574 | mutex_unlock(&local->mtx); |
| 2575 | |
| 2576 | return ret; |
| 2577 | } |
| 2578 | |
| 2579 | static int ieee80211_cancel_roc(struct ieee80211_local *local, |
| 2580 | u64 cookie, bool mgmt_tx) |
| 2581 | { |
| 2582 | struct ieee80211_roc_work *roc, *tmp, *found = NULL; |
| 2583 | int ret; |
| 2584 | |
| 2585 | mutex_lock(&local->mtx); |
| 2586 | list_for_each_entry_safe(roc, tmp, &local->roc_list, list) { |
| 2587 | struct ieee80211_roc_work *dep, *tmp2; |
| 2588 | |
| 2589 | list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) { |
| 2590 | if (!mgmt_tx && dep->cookie != cookie) |
| 2591 | continue; |
| 2592 | else if (mgmt_tx && dep->mgmt_tx_cookie != cookie) |
| 2593 | continue; |
| 2594 | /* found dependent item -- just remove it */ |
| 2595 | list_del(&dep->list); |
| 2596 | mutex_unlock(&local->mtx); |
| 2597 | |
| 2598 | ieee80211_roc_notify_destroy(dep, true); |
| 2599 | return 0; |
| 2600 | } |
| 2601 | |
| 2602 | if (!mgmt_tx && roc->cookie != cookie) |
| 2603 | continue; |
| 2604 | else if (mgmt_tx && roc->mgmt_tx_cookie != cookie) |
| 2605 | continue; |
| 2606 | |
| 2607 | found = roc; |
| 2608 | break; |
| 2609 | } |
| 2610 | |
| 2611 | if (!found) { |
| 2612 | mutex_unlock(&local->mtx); |
| 2613 | return -ENOENT; |
| 2614 | } |
| 2615 | |
| 2616 | /* |
| 2617 | * We found the item to cancel, so do that. Note that it |
| 2618 | * may have dependents, which we also cancel (and send |
| 2619 | * the expired signal for.) Not doing so would be quite |
| 2620 | * tricky here, but we may need to fix it later. |
| 2621 | */ |
| 2622 | |
| 2623 | if (local->ops->remain_on_channel) { |
| 2624 | if (found->started) { |
| 2625 | ret = drv_cancel_remain_on_channel(local); |
| 2626 | if (WARN_ON_ONCE(ret)) { |
| 2627 | mutex_unlock(&local->mtx); |
| 2628 | return ret; |
| 2629 | } |
| 2630 | } |
| 2631 | |
| 2632 | list_del(&found->list); |
| 2633 | |
| 2634 | if (found->started) |
| 2635 | ieee80211_start_next_roc(local); |
| 2636 | mutex_unlock(&local->mtx); |
| 2637 | |
| 2638 | ieee80211_roc_notify_destroy(found, true); |
| 2639 | } else { |
| 2640 | /* work may be pending so use it all the time */ |
| 2641 | found->abort = true; |
| 2642 | ieee80211_queue_delayed_work(&local->hw, &found->work, 0); |
| 2643 | |
| 2644 | mutex_unlock(&local->mtx); |
| 2645 | |
| 2646 | /* work will clean up etc */ |
| 2647 | flush_delayed_work(&found->work); |
| 2648 | WARN_ON(!found->to_be_freed); |
| 2649 | kfree(found); |
| 2650 | } |
| 2651 | |
| 2652 | return 0; |
| 2653 | } |
| 2654 | |
| 2655 | static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, |
| 2656 | struct wireless_dev *wdev, |
| 2657 | u64 cookie) |
| 2658 | { |
| 2659 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| 2660 | struct ieee80211_local *local = sdata->local; |
| 2661 | |
| 2662 | return ieee80211_cancel_roc(local, cookie, false); |
| 2663 | } |
| 2664 | |
| 2665 | static int ieee80211_start_radar_detection(struct wiphy *wiphy, |
| 2666 | struct net_device *dev, |
| 2667 | struct cfg80211_chan_def *chandef, |
| 2668 | u32 cac_time_ms) |
| 2669 | { |
| 2670 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 2671 | struct ieee80211_local *local = sdata->local; |
| 2672 | int err; |
| 2673 | |
| 2674 | mutex_lock(&local->mtx); |
| 2675 | if (!list_empty(&local->roc_list) || local->scanning) { |
| 2676 | err = -EBUSY; |
| 2677 | goto out_unlock; |
| 2678 | } |
| 2679 | |
| 2680 | /* whatever, but channel contexts should not complain about that one */ |
| 2681 | sdata->smps_mode = IEEE80211_SMPS_OFF; |
| 2682 | sdata->needed_rx_chains = local->rx_chains; |
| 2683 | |
| 2684 | err = ieee80211_vif_use_channel(sdata, chandef, |
| 2685 | IEEE80211_CHANCTX_SHARED); |
| 2686 | if (err) |
| 2687 | goto out_unlock; |
| 2688 | |
| 2689 | ieee80211_queue_delayed_work(&sdata->local->hw, |
| 2690 | &sdata->dfs_cac_timer_work, |
| 2691 | msecs_to_jiffies(cac_time_ms)); |
| 2692 | |
| 2693 | out_unlock: |
| 2694 | mutex_unlock(&local->mtx); |
| 2695 | return err; |
| 2696 | } |
| 2697 | |
| 2698 | static struct cfg80211_beacon_data * |
| 2699 | cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) |
| 2700 | { |
| 2701 | struct cfg80211_beacon_data *new_beacon; |
| 2702 | u8 *pos; |
| 2703 | int len; |
| 2704 | |
| 2705 | len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + |
| 2706 | beacon->proberesp_ies_len + beacon->assocresp_ies_len + |
| 2707 | beacon->probe_resp_len; |
| 2708 | |
| 2709 | new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); |
| 2710 | if (!new_beacon) |
| 2711 | return NULL; |
| 2712 | |
| 2713 | pos = (u8 *)(new_beacon + 1); |
| 2714 | if (beacon->head_len) { |
| 2715 | new_beacon->head_len = beacon->head_len; |
| 2716 | new_beacon->head = pos; |
| 2717 | memcpy(pos, beacon->head, beacon->head_len); |
| 2718 | pos += beacon->head_len; |
| 2719 | } |
| 2720 | if (beacon->tail_len) { |
| 2721 | new_beacon->tail_len = beacon->tail_len; |
| 2722 | new_beacon->tail = pos; |
| 2723 | memcpy(pos, beacon->tail, beacon->tail_len); |
| 2724 | pos += beacon->tail_len; |
| 2725 | } |
| 2726 | if (beacon->beacon_ies_len) { |
| 2727 | new_beacon->beacon_ies_len = beacon->beacon_ies_len; |
| 2728 | new_beacon->beacon_ies = pos; |
| 2729 | memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); |
| 2730 | pos += beacon->beacon_ies_len; |
| 2731 | } |
| 2732 | if (beacon->proberesp_ies_len) { |
| 2733 | new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; |
| 2734 | new_beacon->proberesp_ies = pos; |
| 2735 | memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); |
| 2736 | pos += beacon->proberesp_ies_len; |
| 2737 | } |
| 2738 | if (beacon->assocresp_ies_len) { |
| 2739 | new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; |
| 2740 | new_beacon->assocresp_ies = pos; |
| 2741 | memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); |
| 2742 | pos += beacon->assocresp_ies_len; |
| 2743 | } |
| 2744 | if (beacon->probe_resp_len) { |
| 2745 | new_beacon->probe_resp_len = beacon->probe_resp_len; |
| 2746 | beacon->probe_resp = pos; |
| 2747 | memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); |
| 2748 | pos += beacon->probe_resp_len; |
| 2749 | } |
| 2750 | |
| 2751 | return new_beacon; |
| 2752 | } |
| 2753 | |
| 2754 | void ieee80211_csa_finish(struct ieee80211_vif *vif) |
| 2755 | { |
| 2756 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); |
| 2757 | |
| 2758 | ieee80211_queue_work(&sdata->local->hw, |
| 2759 | &sdata->csa_finalize_work); |
| 2760 | } |
| 2761 | EXPORT_SYMBOL(ieee80211_csa_finish); |
| 2762 | |
| 2763 | static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, |
| 2764 | u32 *changed) |
| 2765 | { |
| 2766 | int err; |
| 2767 | |
| 2768 | switch (sdata->vif.type) { |
| 2769 | case NL80211_IFTYPE_AP: |
| 2770 | err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, |
| 2771 | NULL); |
| 2772 | kfree(sdata->u.ap.next_beacon); |
| 2773 | sdata->u.ap.next_beacon = NULL; |
| 2774 | |
| 2775 | if (err < 0) |
| 2776 | return err; |
| 2777 | *changed |= err; |
| 2778 | break; |
| 2779 | case NL80211_IFTYPE_ADHOC: |
| 2780 | err = ieee80211_ibss_finish_csa(sdata); |
| 2781 | if (err < 0) |
| 2782 | return err; |
| 2783 | *changed |= err; |
| 2784 | break; |
| 2785 | #ifdef CONFIG_MAC80211_MESH |
| 2786 | case NL80211_IFTYPE_MESH_POINT: |
| 2787 | err = ieee80211_mesh_finish_csa(sdata); |
| 2788 | if (err < 0) |
| 2789 | return err; |
| 2790 | *changed |= err; |
| 2791 | break; |
| 2792 | #endif |
| 2793 | default: |
| 2794 | WARN_ON(1); |
| 2795 | return -EINVAL; |
| 2796 | } |
| 2797 | |
| 2798 | return 0; |
| 2799 | } |
| 2800 | |
| 2801 | static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) |
| 2802 | { |
| 2803 | struct ieee80211_local *local = sdata->local; |
| 2804 | u32 changed = 0; |
| 2805 | int err; |
| 2806 | |
| 2807 | sdata_assert_lock(sdata); |
| 2808 | lockdep_assert_held(&local->mtx); |
| 2809 | |
| 2810 | sdata->radar_required = sdata->csa_radar_required; |
| 2811 | err = ieee80211_vif_change_channel(sdata, &changed); |
| 2812 | if (err < 0) |
| 2813 | return err; |
| 2814 | |
| 2815 | if (!local->use_chanctx) { |
| 2816 | local->_oper_chandef = sdata->csa_chandef; |
| 2817 | ieee80211_hw_config(local, 0); |
| 2818 | } |
| 2819 | |
| 2820 | sdata->vif.csa_active = false; |
| 2821 | |
| 2822 | err = ieee80211_set_after_csa_beacon(sdata, &changed); |
| 2823 | if (err) |
| 2824 | return err; |
| 2825 | |
| 2826 | ieee80211_bss_info_change_notify(sdata, changed); |
| 2827 | cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); |
| 2828 | |
| 2829 | if (!ieee80211_csa_needs_block_tx(local)) |
| 2830 | ieee80211_wake_queues_by_reason(&local->hw, |
| 2831 | IEEE80211_MAX_QUEUE_MAP, |
| 2832 | IEEE80211_QUEUE_STOP_REASON_CSA, |
| 2833 | false); |
| 2834 | |
| 2835 | return 0; |
| 2836 | } |
| 2837 | |
| 2838 | static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) |
| 2839 | { |
| 2840 | if (__ieee80211_csa_finalize(sdata)) { |
| 2841 | sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); |
| 2842 | cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, |
| 2843 | GFP_KERNEL); |
| 2844 | } |
| 2845 | } |
| 2846 | |
| 2847 | void ieee80211_csa_finalize_work(struct work_struct *work) |
| 2848 | { |
| 2849 | struct ieee80211_sub_if_data *sdata = |
| 2850 | container_of(work, struct ieee80211_sub_if_data, |
| 2851 | csa_finalize_work); |
| 2852 | struct ieee80211_local *local = sdata->local; |
| 2853 | |
| 2854 | sdata_lock(sdata); |
| 2855 | mutex_lock(&local->mtx); |
| 2856 | |
| 2857 | /* AP might have been stopped while waiting for the lock. */ |
| 2858 | if (!sdata->vif.csa_active) |
| 2859 | goto unlock; |
| 2860 | |
| 2861 | if (!ieee80211_sdata_running(sdata)) |
| 2862 | goto unlock; |
| 2863 | |
| 2864 | ieee80211_csa_finalize(sdata); |
| 2865 | |
| 2866 | unlock: |
| 2867 | mutex_unlock(&local->mtx); |
| 2868 | sdata_unlock(sdata); |
| 2869 | } |
| 2870 | |
| 2871 | static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, |
| 2872 | struct cfg80211_csa_settings *params, |
| 2873 | u32 *changed) |
| 2874 | { |
| 2875 | struct ieee80211_csa_settings csa = {}; |
| 2876 | int err; |
| 2877 | |
| 2878 | switch (sdata->vif.type) { |
| 2879 | case NL80211_IFTYPE_AP: |
| 2880 | sdata->u.ap.next_beacon = |
| 2881 | cfg80211_beacon_dup(¶ms->beacon_after); |
| 2882 | if (!sdata->u.ap.next_beacon) |
| 2883 | return -ENOMEM; |
| 2884 | |
| 2885 | /* |
| 2886 | * With a count of 0, we don't have to wait for any |
| 2887 | * TBTT before switching, so complete the CSA |
| 2888 | * immediately. In theory, with a count == 1 we |
| 2889 | * should delay the switch until just before the next |
| 2890 | * TBTT, but that would complicate things so we switch |
| 2891 | * immediately too. If we would delay the switch |
| 2892 | * until the next TBTT, we would have to set the probe |
| 2893 | * response here. |
| 2894 | * |
| 2895 | * TODO: A channel switch with count <= 1 without |
| 2896 | * sending a CSA action frame is kind of useless, |
| 2897 | * because the clients won't know we're changing |
| 2898 | * channels. The action frame must be implemented |
| 2899 | * either here or in the userspace. |
| 2900 | */ |
| 2901 | if (params->count <= 1) |
| 2902 | break; |
| 2903 | |
| 2904 | if ((params->n_counter_offsets_beacon > |
| 2905 | IEEE80211_MAX_CSA_COUNTERS_NUM) || |
| 2906 | (params->n_counter_offsets_presp > |
| 2907 | IEEE80211_MAX_CSA_COUNTERS_NUM)) |
| 2908 | return -EINVAL; |
| 2909 | |
| 2910 | csa.counter_offsets_beacon = params->counter_offsets_beacon; |
| 2911 | csa.counter_offsets_presp = params->counter_offsets_presp; |
| 2912 | csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; |
| 2913 | csa.n_counter_offsets_presp = params->n_counter_offsets_presp; |
| 2914 | csa.count = params->count; |
| 2915 | |
| 2916 | err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); |
| 2917 | if (err < 0) { |
| 2918 | kfree(sdata->u.ap.next_beacon); |
| 2919 | return err; |
| 2920 | } |
| 2921 | *changed |= err; |
| 2922 | |
| 2923 | break; |
| 2924 | case NL80211_IFTYPE_ADHOC: |
| 2925 | if (!sdata->vif.bss_conf.ibss_joined) |
| 2926 | return -EINVAL; |
| 2927 | |
| 2928 | if (params->chandef.width != sdata->u.ibss.chandef.width) |
| 2929 | return -EINVAL; |
| 2930 | |
| 2931 | switch (params->chandef.width) { |
| 2932 | case NL80211_CHAN_WIDTH_40: |
| 2933 | if (cfg80211_get_chandef_type(¶ms->chandef) != |
| 2934 | cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) |
| 2935 | return -EINVAL; |
| 2936 | case NL80211_CHAN_WIDTH_5: |
| 2937 | case NL80211_CHAN_WIDTH_10: |
| 2938 | case NL80211_CHAN_WIDTH_20_NOHT: |
| 2939 | case NL80211_CHAN_WIDTH_20: |
| 2940 | break; |
| 2941 | default: |
| 2942 | return -EINVAL; |
| 2943 | } |
| 2944 | |
| 2945 | /* changes into another band are not supported */ |
| 2946 | if (sdata->u.ibss.chandef.chan->band != |
| 2947 | params->chandef.chan->band) |
| 2948 | return -EINVAL; |
| 2949 | |
| 2950 | /* see comments in the NL80211_IFTYPE_AP block */ |
| 2951 | if (params->count > 1) { |
| 2952 | err = ieee80211_ibss_csa_beacon(sdata, params); |
| 2953 | if (err < 0) |
| 2954 | return err; |
| 2955 | *changed |= err; |
| 2956 | } |
| 2957 | |
| 2958 | ieee80211_send_action_csa(sdata, params); |
| 2959 | |
| 2960 | break; |
| 2961 | #ifdef CONFIG_MAC80211_MESH |
| 2962 | case NL80211_IFTYPE_MESH_POINT: { |
| 2963 | struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; |
| 2964 | |
| 2965 | if (params->chandef.width != sdata->vif.bss_conf.chandef.width) |
| 2966 | return -EINVAL; |
| 2967 | |
| 2968 | /* changes into another band are not supported */ |
| 2969 | if (sdata->vif.bss_conf.chandef.chan->band != |
| 2970 | params->chandef.chan->band) |
| 2971 | return -EINVAL; |
| 2972 | |
| 2973 | if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { |
| 2974 | ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; |
| 2975 | if (!ifmsh->pre_value) |
| 2976 | ifmsh->pre_value = 1; |
| 2977 | else |
| 2978 | ifmsh->pre_value++; |
| 2979 | } |
| 2980 | |
| 2981 | /* see comments in the NL80211_IFTYPE_AP block */ |
| 2982 | if (params->count > 1) { |
| 2983 | err = ieee80211_mesh_csa_beacon(sdata, params); |
| 2984 | if (err < 0) { |
| 2985 | ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; |
| 2986 | return err; |
| 2987 | } |
| 2988 | *changed |= err; |
| 2989 | } |
| 2990 | |
| 2991 | if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) |
| 2992 | ieee80211_send_action_csa(sdata, params); |
| 2993 | |
| 2994 | break; |
| 2995 | } |
| 2996 | #endif |
| 2997 | default: |
| 2998 | return -EOPNOTSUPP; |
| 2999 | } |
| 3000 | |
| 3001 | return 0; |
| 3002 | } |
| 3003 | |
| 3004 | static int |
| 3005 | __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, |
| 3006 | struct cfg80211_csa_settings *params) |
| 3007 | { |
| 3008 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 3009 | struct ieee80211_local *local = sdata->local; |
| 3010 | struct ieee80211_chanctx_conf *conf; |
| 3011 | struct ieee80211_chanctx *chanctx; |
| 3012 | int err, num_chanctx, changed = 0; |
| 3013 | |
| 3014 | sdata_assert_lock(sdata); |
| 3015 | lockdep_assert_held(&local->mtx); |
| 3016 | |
| 3017 | if (!list_empty(&local->roc_list) || local->scanning) |
| 3018 | return -EBUSY; |
| 3019 | |
| 3020 | if (sdata->wdev.cac_started) |
| 3021 | return -EBUSY; |
| 3022 | |
| 3023 | if (cfg80211_chandef_identical(¶ms->chandef, |
| 3024 | &sdata->vif.bss_conf.chandef)) |
| 3025 | return -EINVAL; |
| 3026 | |
| 3027 | mutex_lock(&local->chanctx_mtx); |
| 3028 | conf = rcu_dereference_protected(sdata->vif.chanctx_conf, |
| 3029 | lockdep_is_held(&local->chanctx_mtx)); |
| 3030 | if (!conf) { |
| 3031 | mutex_unlock(&local->chanctx_mtx); |
| 3032 | return -EBUSY; |
| 3033 | } |
| 3034 | |
| 3035 | /* don't handle for multi-VIF cases */ |
| 3036 | chanctx = container_of(conf, struct ieee80211_chanctx, conf); |
| 3037 | if (ieee80211_chanctx_refcount(local, chanctx) > 1) { |
| 3038 | mutex_unlock(&local->chanctx_mtx); |
| 3039 | return -EBUSY; |
| 3040 | } |
| 3041 | num_chanctx = 0; |
| 3042 | list_for_each_entry_rcu(chanctx, &local->chanctx_list, list) |
| 3043 | num_chanctx++; |
| 3044 | mutex_unlock(&local->chanctx_mtx); |
| 3045 | |
| 3046 | if (num_chanctx > 1) |
| 3047 | return -EBUSY; |
| 3048 | |
| 3049 | /* don't allow another channel switch if one is already active. */ |
| 3050 | if (sdata->vif.csa_active) |
| 3051 | return -EBUSY; |
| 3052 | |
| 3053 | err = ieee80211_set_csa_beacon(sdata, params, &changed); |
| 3054 | if (err) |
| 3055 | return err; |
| 3056 | |
| 3057 | sdata->csa_radar_required = params->radar_required; |
| 3058 | sdata->csa_chandef = params->chandef; |
| 3059 | sdata->csa_block_tx = params->block_tx; |
| 3060 | sdata->vif.csa_active = true; |
| 3061 | |
| 3062 | if (sdata->csa_block_tx) |
| 3063 | ieee80211_stop_queues_by_reason(&local->hw, |
| 3064 | IEEE80211_MAX_QUEUE_MAP, |
| 3065 | IEEE80211_QUEUE_STOP_REASON_CSA, |
| 3066 | false); |
| 3067 | |
| 3068 | if (changed) { |
| 3069 | ieee80211_bss_info_change_notify(sdata, changed); |
| 3070 | drv_channel_switch_beacon(sdata, ¶ms->chandef); |
| 3071 | } else { |
| 3072 | /* if the beacon didn't change, we can finalize immediately */ |
| 3073 | ieee80211_csa_finalize(sdata); |
| 3074 | } |
| 3075 | |
| 3076 | return 0; |
| 3077 | } |
| 3078 | |
| 3079 | int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, |
| 3080 | struct cfg80211_csa_settings *params) |
| 3081 | { |
| 3082 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 3083 | struct ieee80211_local *local = sdata->local; |
| 3084 | int err; |
| 3085 | |
| 3086 | mutex_lock(&local->mtx); |
| 3087 | err = __ieee80211_channel_switch(wiphy, dev, params); |
| 3088 | mutex_unlock(&local->mtx); |
| 3089 | |
| 3090 | return err; |
| 3091 | } |
| 3092 | |
| 3093 | static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, |
| 3094 | struct cfg80211_mgmt_tx_params *params, |
| 3095 | u64 *cookie) |
| 3096 | { |
| 3097 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| 3098 | struct ieee80211_local *local = sdata->local; |
| 3099 | struct sk_buff *skb; |
| 3100 | struct sta_info *sta; |
| 3101 | const struct ieee80211_mgmt *mgmt = (void *)params->buf; |
| 3102 | bool need_offchan = false; |
| 3103 | u32 flags; |
| 3104 | int ret; |
| 3105 | u8 *data; |
| 3106 | |
| 3107 | if (params->dont_wait_for_ack) |
| 3108 | flags = IEEE80211_TX_CTL_NO_ACK; |
| 3109 | else |
| 3110 | flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX | |
| 3111 | IEEE80211_TX_CTL_REQ_TX_STATUS; |
| 3112 | |
| 3113 | if (params->no_cck) |
| 3114 | flags |= IEEE80211_TX_CTL_NO_CCK_RATE; |
| 3115 | |
| 3116 | switch (sdata->vif.type) { |
| 3117 | case NL80211_IFTYPE_ADHOC: |
| 3118 | if (!sdata->vif.bss_conf.ibss_joined) |
| 3119 | need_offchan = true; |
| 3120 | /* fall through */ |
| 3121 | #ifdef CONFIG_MAC80211_MESH |
| 3122 | case NL80211_IFTYPE_MESH_POINT: |
| 3123 | if (ieee80211_vif_is_mesh(&sdata->vif) && |
| 3124 | !sdata->u.mesh.mesh_id_len) |
| 3125 | need_offchan = true; |
| 3126 | /* fall through */ |
| 3127 | #endif |
| 3128 | case NL80211_IFTYPE_AP: |
| 3129 | case NL80211_IFTYPE_AP_VLAN: |
| 3130 | case NL80211_IFTYPE_P2P_GO: |
| 3131 | if (sdata->vif.type != NL80211_IFTYPE_ADHOC && |
| 3132 | !ieee80211_vif_is_mesh(&sdata->vif) && |
| 3133 | !rcu_access_pointer(sdata->bss->beacon)) |
| 3134 | need_offchan = true; |
| 3135 | if (!ieee80211_is_action(mgmt->frame_control) || |
| 3136 | mgmt->u.action.category == WLAN_CATEGORY_PUBLIC || |
| 3137 | mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED || |
| 3138 | mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT) |
| 3139 | break; |
| 3140 | rcu_read_lock(); |
| 3141 | sta = sta_info_get(sdata, mgmt->da); |
| 3142 | rcu_read_unlock(); |
| 3143 | if (!sta) |
| 3144 | return -ENOLINK; |
| 3145 | break; |
| 3146 | case NL80211_IFTYPE_STATION: |
| 3147 | case NL80211_IFTYPE_P2P_CLIENT: |
| 3148 | if (!sdata->u.mgd.associated) |
| 3149 | need_offchan = true; |
| 3150 | break; |
| 3151 | case NL80211_IFTYPE_P2P_DEVICE: |
| 3152 | need_offchan = true; |
| 3153 | break; |
| 3154 | default: |
| 3155 | return -EOPNOTSUPP; |
| 3156 | } |
| 3157 | |
| 3158 | /* configurations requiring offchan cannot work if no channel has been |
| 3159 | * specified |
| 3160 | */ |
| 3161 | if (need_offchan && !params->chan) |
| 3162 | return -EINVAL; |
| 3163 | |
| 3164 | mutex_lock(&local->mtx); |
| 3165 | |
| 3166 | /* Check if the operating channel is the requested channel */ |
| 3167 | if (!need_offchan) { |
| 3168 | struct ieee80211_chanctx_conf *chanctx_conf; |
| 3169 | |
| 3170 | rcu_read_lock(); |
| 3171 | chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); |
| 3172 | |
| 3173 | if (chanctx_conf) { |
| 3174 | need_offchan = params->chan && |
| 3175 | (params->chan != |
| 3176 | chanctx_conf->def.chan); |
| 3177 | } else if (!params->chan) { |
| 3178 | ret = -EINVAL; |
| 3179 | rcu_read_unlock(); |
| 3180 | goto out_unlock; |
| 3181 | } else { |
| 3182 | need_offchan = true; |
| 3183 | } |
| 3184 | rcu_read_unlock(); |
| 3185 | } |
| 3186 | |
| 3187 | if (need_offchan && !params->offchan) { |
| 3188 | ret = -EBUSY; |
| 3189 | goto out_unlock; |
| 3190 | } |
| 3191 | |
| 3192 | skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len); |
| 3193 | if (!skb) { |
| 3194 | ret = -ENOMEM; |
| 3195 | goto out_unlock; |
| 3196 | } |
| 3197 | skb_reserve(skb, local->hw.extra_tx_headroom); |
| 3198 | |
| 3199 | data = skb_put(skb, params->len); |
| 3200 | memcpy(data, params->buf, params->len); |
| 3201 | |
| 3202 | /* Update CSA counters */ |
| 3203 | if (sdata->vif.csa_active && |
| 3204 | (sdata->vif.type == NL80211_IFTYPE_AP || |
| 3205 | sdata->vif.type == NL80211_IFTYPE_ADHOC) && |
| 3206 | params->n_csa_offsets) { |
| 3207 | int i; |
| 3208 | struct beacon_data *beacon = NULL; |
| 3209 | |
| 3210 | rcu_read_lock(); |
| 3211 | |
| 3212 | if (sdata->vif.type == NL80211_IFTYPE_AP) |
| 3213 | beacon = rcu_dereference(sdata->u.ap.beacon); |
| 3214 | else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) |
| 3215 | beacon = rcu_dereference(sdata->u.ibss.presp); |
| 3216 | else if (ieee80211_vif_is_mesh(&sdata->vif)) |
| 3217 | beacon = rcu_dereference(sdata->u.mesh.beacon); |
| 3218 | |
| 3219 | if (beacon) |
| 3220 | for (i = 0; i < params->n_csa_offsets; i++) |
| 3221 | data[params->csa_offsets[i]] = |
| 3222 | beacon->csa_current_counter; |
| 3223 | |
| 3224 | rcu_read_unlock(); |
| 3225 | } |
| 3226 | |
| 3227 | IEEE80211_SKB_CB(skb)->flags = flags; |
| 3228 | |
| 3229 | skb->dev = sdata->dev; |
| 3230 | |
| 3231 | if (!need_offchan) { |
| 3232 | *cookie = (unsigned long) skb; |
| 3233 | ieee80211_tx_skb(sdata, skb); |
| 3234 | ret = 0; |
| 3235 | goto out_unlock; |
| 3236 | } |
| 3237 | |
| 3238 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN | |
| 3239 | IEEE80211_TX_INTFL_OFFCHAN_TX_OK; |
| 3240 | if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL) |
| 3241 | IEEE80211_SKB_CB(skb)->hw_queue = |
| 3242 | local->hw.offchannel_tx_hw_queue; |
| 3243 | |
| 3244 | /* This will handle all kinds of coalescing and immediate TX */ |
| 3245 | ret = ieee80211_start_roc_work(local, sdata, params->chan, |
| 3246 | params->wait, cookie, skb, |
| 3247 | IEEE80211_ROC_TYPE_MGMT_TX); |
| 3248 | if (ret) |
| 3249 | kfree_skb(skb); |
| 3250 | out_unlock: |
| 3251 | mutex_unlock(&local->mtx); |
| 3252 | return ret; |
| 3253 | } |
| 3254 | |
| 3255 | static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, |
| 3256 | struct wireless_dev *wdev, |
| 3257 | u64 cookie) |
| 3258 | { |
| 3259 | struct ieee80211_local *local = wiphy_priv(wiphy); |
| 3260 | |
| 3261 | return ieee80211_cancel_roc(local, cookie, true); |
| 3262 | } |
| 3263 | |
| 3264 | static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, |
| 3265 | struct wireless_dev *wdev, |
| 3266 | u16 frame_type, bool reg) |
| 3267 | { |
| 3268 | struct ieee80211_local *local = wiphy_priv(wiphy); |
| 3269 | |
| 3270 | switch (frame_type) { |
| 3271 | case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: |
| 3272 | if (reg) |
| 3273 | local->probe_req_reg++; |
| 3274 | else |
| 3275 | local->probe_req_reg--; |
| 3276 | |
| 3277 | if (!local->open_count) |
| 3278 | break; |
| 3279 | |
| 3280 | ieee80211_queue_work(&local->hw, &local->reconfig_filter); |
| 3281 | break; |
| 3282 | default: |
| 3283 | break; |
| 3284 | } |
| 3285 | } |
| 3286 | |
| 3287 | static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) |
| 3288 | { |
| 3289 | struct ieee80211_local *local = wiphy_priv(wiphy); |
| 3290 | |
| 3291 | if (local->started) |
| 3292 | return -EOPNOTSUPP; |
| 3293 | |
| 3294 | return drv_set_antenna(local, tx_ant, rx_ant); |
| 3295 | } |
| 3296 | |
| 3297 | static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) |
| 3298 | { |
| 3299 | struct ieee80211_local *local = wiphy_priv(wiphy); |
| 3300 | |
| 3301 | return drv_get_antenna(local, tx_ant, rx_ant); |
| 3302 | } |
| 3303 | |
| 3304 | static int ieee80211_set_rekey_data(struct wiphy *wiphy, |
| 3305 | struct net_device *dev, |
| 3306 | struct cfg80211_gtk_rekey_data *data) |
| 3307 | { |
| 3308 | struct ieee80211_local *local = wiphy_priv(wiphy); |
| 3309 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 3310 | |
| 3311 | if (!local->ops->set_rekey_data) |
| 3312 | return -EOPNOTSUPP; |
| 3313 | |
| 3314 | drv_set_rekey_data(local, sdata, data); |
| 3315 | |
| 3316 | return 0; |
| 3317 | } |
| 3318 | |
| 3319 | static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, |
| 3320 | const u8 *peer, u64 *cookie) |
| 3321 | { |
| 3322 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 3323 | struct ieee80211_local *local = sdata->local; |
| 3324 | struct ieee80211_qos_hdr *nullfunc; |
| 3325 | struct sk_buff *skb; |
| 3326 | int size = sizeof(*nullfunc); |
| 3327 | __le16 fc; |
| 3328 | bool qos; |
| 3329 | struct ieee80211_tx_info *info; |
| 3330 | struct sta_info *sta; |
| 3331 | struct ieee80211_chanctx_conf *chanctx_conf; |
| 3332 | enum ieee80211_band band; |
| 3333 | |
| 3334 | rcu_read_lock(); |
| 3335 | chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); |
| 3336 | if (WARN_ON(!chanctx_conf)) { |
| 3337 | rcu_read_unlock(); |
| 3338 | return -EINVAL; |
| 3339 | } |
| 3340 | band = chanctx_conf->def.chan->band; |
| 3341 | sta = sta_info_get_bss(sdata, peer); |
| 3342 | if (sta) { |
| 3343 | qos = test_sta_flag(sta, WLAN_STA_WME); |
| 3344 | } else { |
| 3345 | rcu_read_unlock(); |
| 3346 | return -ENOLINK; |
| 3347 | } |
| 3348 | |
| 3349 | if (qos) { |
| 3350 | fc = cpu_to_le16(IEEE80211_FTYPE_DATA | |
| 3351 | IEEE80211_STYPE_QOS_NULLFUNC | |
| 3352 | IEEE80211_FCTL_FROMDS); |
| 3353 | } else { |
| 3354 | size -= 2; |
| 3355 | fc = cpu_to_le16(IEEE80211_FTYPE_DATA | |
| 3356 | IEEE80211_STYPE_NULLFUNC | |
| 3357 | IEEE80211_FCTL_FROMDS); |
| 3358 | } |
| 3359 | |
| 3360 | skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); |
| 3361 | if (!skb) { |
| 3362 | rcu_read_unlock(); |
| 3363 | return -ENOMEM; |
| 3364 | } |
| 3365 | |
| 3366 | skb->dev = dev; |
| 3367 | |
| 3368 | skb_reserve(skb, local->hw.extra_tx_headroom); |
| 3369 | |
| 3370 | nullfunc = (void *) skb_put(skb, size); |
| 3371 | nullfunc->frame_control = fc; |
| 3372 | nullfunc->duration_id = 0; |
| 3373 | memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); |
| 3374 | memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); |
| 3375 | memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); |
| 3376 | nullfunc->seq_ctrl = 0; |
| 3377 | |
| 3378 | info = IEEE80211_SKB_CB(skb); |
| 3379 | |
| 3380 | info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | |
| 3381 | IEEE80211_TX_INTFL_NL80211_FRAME_TX; |
| 3382 | |
| 3383 | skb_set_queue_mapping(skb, IEEE80211_AC_VO); |
| 3384 | skb->priority = 7; |
| 3385 | if (qos) |
| 3386 | nullfunc->qos_ctrl = cpu_to_le16(7); |
| 3387 | |
| 3388 | local_bh_disable(); |
| 3389 | ieee80211_xmit(sdata, skb, band); |
| 3390 | local_bh_enable(); |
| 3391 | rcu_read_unlock(); |
| 3392 | |
| 3393 | *cookie = (unsigned long) skb; |
| 3394 | return 0; |
| 3395 | } |
| 3396 | |
| 3397 | static int ieee80211_cfg_get_channel(struct wiphy *wiphy, |
| 3398 | struct wireless_dev *wdev, |
| 3399 | struct cfg80211_chan_def *chandef) |
| 3400 | { |
| 3401 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
| 3402 | struct ieee80211_local *local = wiphy_priv(wiphy); |
| 3403 | struct ieee80211_chanctx_conf *chanctx_conf; |
| 3404 | int ret = -ENODATA; |
| 3405 | |
| 3406 | rcu_read_lock(); |
| 3407 | chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); |
| 3408 | if (chanctx_conf) { |
| 3409 | *chandef = chanctx_conf->def; |
| 3410 | ret = 0; |
| 3411 | } else if (local->open_count > 0 && |
| 3412 | local->open_count == local->monitors && |
| 3413 | sdata->vif.type == NL80211_IFTYPE_MONITOR) { |
| 3414 | if (local->use_chanctx) |
| 3415 | *chandef = local->monitor_chandef; |
| 3416 | else |
| 3417 | *chandef = local->_oper_chandef; |
| 3418 | ret = 0; |
| 3419 | } |
| 3420 | rcu_read_unlock(); |
| 3421 | |
| 3422 | return ret; |
| 3423 | } |
| 3424 | |
| 3425 | #ifdef CONFIG_PM |
| 3426 | static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) |
| 3427 | { |
| 3428 | drv_set_wakeup(wiphy_priv(wiphy), enabled); |
| 3429 | } |
| 3430 | #endif |
| 3431 | |
| 3432 | static int ieee80211_set_qos_map(struct wiphy *wiphy, |
| 3433 | struct net_device *dev, |
| 3434 | struct cfg80211_qos_map *qos_map) |
| 3435 | { |
| 3436 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 3437 | struct mac80211_qos_map *new_qos_map, *old_qos_map; |
| 3438 | |
| 3439 | if (qos_map) { |
| 3440 | new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); |
| 3441 | if (!new_qos_map) |
| 3442 | return -ENOMEM; |
| 3443 | memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); |
| 3444 | } else { |
| 3445 | /* A NULL qos_map was passed to disable QoS mapping */ |
| 3446 | new_qos_map = NULL; |
| 3447 | } |
| 3448 | |
| 3449 | old_qos_map = sdata_dereference(sdata->qos_map, sdata); |
| 3450 | rcu_assign_pointer(sdata->qos_map, new_qos_map); |
| 3451 | if (old_qos_map) |
| 3452 | kfree_rcu(old_qos_map, rcu_head); |
| 3453 | |
| 3454 | return 0; |
| 3455 | } |
| 3456 | |
| 3457 | static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, |
| 3458 | struct net_device *dev, |
| 3459 | struct cfg80211_chan_def *chandef) |
| 3460 | { |
| 3461 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| 3462 | int ret; |
| 3463 | u32 changed = 0; |
| 3464 | |
| 3465 | ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); |
| 3466 | if (ret == 0) |
| 3467 | ieee80211_bss_info_change_notify(sdata, changed); |
| 3468 | |
| 3469 | return ret; |
| 3470 | } |
| 3471 | |
| 3472 | const struct cfg80211_ops mac80211_config_ops = { |
| 3473 | .add_virtual_intf = ieee80211_add_iface, |
| 3474 | .del_virtual_intf = ieee80211_del_iface, |
| 3475 | .change_virtual_intf = ieee80211_change_iface, |
| 3476 | .start_p2p_device = ieee80211_start_p2p_device, |
| 3477 | .stop_p2p_device = ieee80211_stop_p2p_device, |
| 3478 | .add_key = ieee80211_add_key, |
| 3479 | .del_key = ieee80211_del_key, |
| 3480 | .get_key = ieee80211_get_key, |
| 3481 | .set_default_key = ieee80211_config_default_key, |
| 3482 | .set_default_mgmt_key = ieee80211_config_default_mgmt_key, |
| 3483 | .start_ap = ieee80211_start_ap, |
| 3484 | .change_beacon = ieee80211_change_beacon, |
| 3485 | .stop_ap = ieee80211_stop_ap, |
| 3486 | .add_station = ieee80211_add_station, |
| 3487 | .del_station = ieee80211_del_station, |
| 3488 | .change_station = ieee80211_change_station, |
| 3489 | .get_station = ieee80211_get_station, |
| 3490 | .dump_station = ieee80211_dump_station, |
| 3491 | .dump_survey = ieee80211_dump_survey, |
| 3492 | #ifdef CONFIG_MAC80211_MESH |
| 3493 | .add_mpath = ieee80211_add_mpath, |
| 3494 | .del_mpath = ieee80211_del_mpath, |
| 3495 | .change_mpath = ieee80211_change_mpath, |
| 3496 | .get_mpath = ieee80211_get_mpath, |
| 3497 | .dump_mpath = ieee80211_dump_mpath, |
| 3498 | .update_mesh_config = ieee80211_update_mesh_config, |
| 3499 | .get_mesh_config = ieee80211_get_mesh_config, |
| 3500 | .join_mesh = ieee80211_join_mesh, |
| 3501 | .leave_mesh = ieee80211_leave_mesh, |
| 3502 | #endif |
| 3503 | .change_bss = ieee80211_change_bss, |
| 3504 | .set_txq_params = ieee80211_set_txq_params, |
| 3505 | .set_monitor_channel = ieee80211_set_monitor_channel, |
| 3506 | .suspend = ieee80211_suspend, |
| 3507 | .resume = ieee80211_resume, |
| 3508 | .scan = ieee80211_scan, |
| 3509 | .sched_scan_start = ieee80211_sched_scan_start, |
| 3510 | .sched_scan_stop = ieee80211_sched_scan_stop, |
| 3511 | .auth = ieee80211_auth, |
| 3512 | .assoc = ieee80211_assoc, |
| 3513 | .deauth = ieee80211_deauth, |
| 3514 | .disassoc = ieee80211_disassoc, |
| 3515 | .join_ibss = ieee80211_join_ibss, |
| 3516 | .leave_ibss = ieee80211_leave_ibss, |
| 3517 | .set_mcast_rate = ieee80211_set_mcast_rate, |
| 3518 | .set_wiphy_params = ieee80211_set_wiphy_params, |
| 3519 | .set_tx_power = ieee80211_set_tx_power, |
| 3520 | .get_tx_power = ieee80211_get_tx_power, |
| 3521 | .set_wds_peer = ieee80211_set_wds_peer, |
| 3522 | .rfkill_poll = ieee80211_rfkill_poll, |
| 3523 | CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) |
| 3524 | CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) |
| 3525 | .set_power_mgmt = ieee80211_set_power_mgmt, |
| 3526 | .set_bitrate_mask = ieee80211_set_bitrate_mask, |
| 3527 | .remain_on_channel = ieee80211_remain_on_channel, |
| 3528 | .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, |
| 3529 | .mgmt_tx = ieee80211_mgmt_tx, |
| 3530 | .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, |
| 3531 | .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, |
| 3532 | .mgmt_frame_register = ieee80211_mgmt_frame_register, |
| 3533 | .set_antenna = ieee80211_set_antenna, |
| 3534 | .get_antenna = ieee80211_get_antenna, |
| 3535 | .set_rekey_data = ieee80211_set_rekey_data, |
| 3536 | .tdls_oper = ieee80211_tdls_oper, |
| 3537 | .tdls_mgmt = ieee80211_tdls_mgmt, |
| 3538 | .probe_client = ieee80211_probe_client, |
| 3539 | .set_noack_map = ieee80211_set_noack_map, |
| 3540 | #ifdef CONFIG_PM |
| 3541 | .set_wakeup = ieee80211_set_wakeup, |
| 3542 | #endif |
| 3543 | .get_channel = ieee80211_cfg_get_channel, |
| 3544 | .start_radar_detection = ieee80211_start_radar_detection, |
| 3545 | .channel_switch = ieee80211_channel_switch, |
| 3546 | .set_qos_map = ieee80211_set_qos_map, |
| 3547 | .set_ap_chanwidth = ieee80211_set_ap_chanwidth, |
| 3548 | }; |