1 /* 2 * mac80211 configuration hooks for cfg80211 3 * 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 5 * Copyright 2013-2015 Intel Mobile Communications GmbH 6 * Copyright (C) 2015-2017 Intel Deutschland GmbH 7 * Copyright (C) 2018 Intel Corporation 8 * 9 * This file is GPLv2 as found in COPYING. 10 */ 11 12 #include <linux/ieee80211.h> 13 #include <linux/nl80211.h> 14 #include <linux/rtnetlink.h> 15 #include <linux/slab.h> 16 #include <net/net_namespace.h> 17 #include <linux/rcupdate.h> 18 #include <linux/if_ether.h> 19 #include <net/cfg80211.h> 20 #include "ieee80211_i.h" 21 #include "driver-ops.h" 22 #include "rate.h" 23 #include "mesh.h" 24 #include "wme.h" 25 26 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 27 struct vif_params *params) 28 { 29 bool mu_mimo_groups = false; 30 bool mu_mimo_follow = false; 31 32 if (params->vht_mumimo_groups) { 33 u64 membership; 34 35 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 36 37 memcpy(sdata->vif.bss_conf.mu_group.membership, 38 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 39 memcpy(sdata->vif.bss_conf.mu_group.position, 40 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 41 WLAN_USER_POSITION_LEN); 42 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS); 43 /* don't care about endianness - just check for 0 */ 44 memcpy(&membership, params->vht_mumimo_groups, 45 WLAN_MEMBERSHIP_LEN); 46 mu_mimo_groups = membership != 0; 47 } 48 49 if (params->vht_mumimo_follow_addr) { 50 mu_mimo_follow = 51 is_valid_ether_addr(params->vht_mumimo_follow_addr); 52 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 53 params->vht_mumimo_follow_addr); 54 } 55 56 sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 57 } 58 59 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 60 struct vif_params *params) 61 { 62 struct ieee80211_local *local = sdata->local; 63 struct ieee80211_sub_if_data *monitor_sdata; 64 65 /* check flags first */ 66 if (params->flags && ieee80211_sdata_running(sdata)) { 67 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 68 69 /* 70 * Prohibit MONITOR_FLAG_COOK_FRAMES and 71 * MONITOR_FLAG_ACTIVE to be changed while the 72 * interface is up. 73 * Else we would need to add a lot of cruft 74 * to update everything: 75 * cooked_mntrs, monitor and all fif_* counters 76 * reconfigure hardware 77 */ 78 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 79 return -EBUSY; 80 } 81 82 /* also validate MU-MIMO change */ 83 monitor_sdata = rtnl_dereference(local->monitor_sdata); 84 85 if (!monitor_sdata && 86 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 87 return -EOPNOTSUPP; 88 89 /* apply all changes now - no failures allowed */ 90 91 if (monitor_sdata) 92 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 93 94 if (params->flags) { 95 if (ieee80211_sdata_running(sdata)) { 96 ieee80211_adjust_monitor_flags(sdata, -1); 97 sdata->u.mntr.flags = params->flags; 98 ieee80211_adjust_monitor_flags(sdata, 1); 99 100 ieee80211_configure_filter(local); 101 } else { 102 /* 103 * Because the interface is down, ieee80211_do_stop 104 * and ieee80211_do_open take care of "everything" 105 * mentioned in the comment above. 106 */ 107 sdata->u.mntr.flags = params->flags; 108 } 109 } 110 111 return 0; 112 } 113 114 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 115 const char *name, 116 unsigned char name_assign_type, 117 enum nl80211_iftype type, 118 struct vif_params *params) 119 { 120 struct ieee80211_local *local = wiphy_priv(wiphy); 121 struct wireless_dev *wdev; 122 struct ieee80211_sub_if_data *sdata; 123 int err; 124 125 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 126 if (err) 127 return ERR_PTR(err); 128 129 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 130 131 if (type == NL80211_IFTYPE_MONITOR) { 132 err = ieee80211_set_mon_options(sdata, params); 133 if (err) { 134 ieee80211_if_remove(sdata); 135 return NULL; 136 } 137 } 138 139 return wdev; 140 } 141 142 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 143 { 144 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 145 146 return 0; 147 } 148 149 static int ieee80211_change_iface(struct wiphy *wiphy, 150 struct net_device *dev, 151 enum nl80211_iftype type, 152 struct vif_params *params) 153 { 154 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 155 int ret; 156 157 ret = ieee80211_if_change_type(sdata, type); 158 if (ret) 159 return ret; 160 161 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 162 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 163 ieee80211_check_fast_rx_iface(sdata); 164 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 165 sdata->u.mgd.use_4addr = params->use_4addr; 166 } 167 168 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 169 ret = ieee80211_set_mon_options(sdata, params); 170 if (ret) 171 return ret; 172 } 173 174 return 0; 175 } 176 177 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 178 struct wireless_dev *wdev) 179 { 180 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 181 int ret; 182 183 mutex_lock(&sdata->local->chanctx_mtx); 184 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 185 mutex_unlock(&sdata->local->chanctx_mtx); 186 if (ret < 0) 187 return ret; 188 189 return ieee80211_do_open(wdev, true); 190 } 191 192 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 193 struct wireless_dev *wdev) 194 { 195 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 196 } 197 198 static int ieee80211_start_nan(struct wiphy *wiphy, 199 struct wireless_dev *wdev, 200 struct cfg80211_nan_conf *conf) 201 { 202 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 203 int ret; 204 205 mutex_lock(&sdata->local->chanctx_mtx); 206 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 207 mutex_unlock(&sdata->local->chanctx_mtx); 208 if (ret < 0) 209 return ret; 210 211 ret = ieee80211_do_open(wdev, true); 212 if (ret) 213 return ret; 214 215 ret = drv_start_nan(sdata->local, sdata, conf); 216 if (ret) 217 ieee80211_sdata_stop(sdata); 218 219 sdata->u.nan.conf = *conf; 220 221 return ret; 222 } 223 224 static void ieee80211_stop_nan(struct wiphy *wiphy, 225 struct wireless_dev *wdev) 226 { 227 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 228 229 drv_stop_nan(sdata->local, sdata); 230 ieee80211_sdata_stop(sdata); 231 } 232 233 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 234 struct wireless_dev *wdev, 235 struct cfg80211_nan_conf *conf, 236 u32 changes) 237 { 238 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 239 struct cfg80211_nan_conf new_conf; 240 int ret = 0; 241 242 if (sdata->vif.type != NL80211_IFTYPE_NAN) 243 return -EOPNOTSUPP; 244 245 if (!ieee80211_sdata_running(sdata)) 246 return -ENETDOWN; 247 248 new_conf = sdata->u.nan.conf; 249 250 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 251 new_conf.master_pref = conf->master_pref; 252 253 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 254 new_conf.bands = conf->bands; 255 256 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 257 if (!ret) 258 sdata->u.nan.conf = new_conf; 259 260 return ret; 261 } 262 263 static int ieee80211_add_nan_func(struct wiphy *wiphy, 264 struct wireless_dev *wdev, 265 struct cfg80211_nan_func *nan_func) 266 { 267 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 268 int ret; 269 270 if (sdata->vif.type != NL80211_IFTYPE_NAN) 271 return -EOPNOTSUPP; 272 273 if (!ieee80211_sdata_running(sdata)) 274 return -ENETDOWN; 275 276 spin_lock_bh(&sdata->u.nan.func_lock); 277 278 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 279 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 280 GFP_ATOMIC); 281 spin_unlock_bh(&sdata->u.nan.func_lock); 282 283 if (ret < 0) 284 return ret; 285 286 nan_func->instance_id = ret; 287 288 WARN_ON(nan_func->instance_id == 0); 289 290 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 291 if (ret) { 292 spin_lock_bh(&sdata->u.nan.func_lock); 293 idr_remove(&sdata->u.nan.function_inst_ids, 294 nan_func->instance_id); 295 spin_unlock_bh(&sdata->u.nan.func_lock); 296 } 297 298 return ret; 299 } 300 301 static struct cfg80211_nan_func * 302 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 303 u64 cookie) 304 { 305 struct cfg80211_nan_func *func; 306 int id; 307 308 lockdep_assert_held(&sdata->u.nan.func_lock); 309 310 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 311 if (func->cookie == cookie) 312 return func; 313 } 314 315 return NULL; 316 } 317 318 static void ieee80211_del_nan_func(struct wiphy *wiphy, 319 struct wireless_dev *wdev, u64 cookie) 320 { 321 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 322 struct cfg80211_nan_func *func; 323 u8 instance_id = 0; 324 325 if (sdata->vif.type != NL80211_IFTYPE_NAN || 326 !ieee80211_sdata_running(sdata)) 327 return; 328 329 spin_lock_bh(&sdata->u.nan.func_lock); 330 331 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 332 if (func) 333 instance_id = func->instance_id; 334 335 spin_unlock_bh(&sdata->u.nan.func_lock); 336 337 if (instance_id) 338 drv_del_nan_func(sdata->local, sdata, instance_id); 339 } 340 341 static int ieee80211_set_noack_map(struct wiphy *wiphy, 342 struct net_device *dev, 343 u16 noack_map) 344 { 345 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 346 347 sdata->noack_map = noack_map; 348 349 ieee80211_check_fast_xmit_iface(sdata); 350 351 return 0; 352 } 353 354 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 355 u8 key_idx, bool pairwise, const u8 *mac_addr, 356 struct key_params *params) 357 { 358 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 359 struct ieee80211_local *local = sdata->local; 360 struct sta_info *sta = NULL; 361 const struct ieee80211_cipher_scheme *cs = NULL; 362 struct ieee80211_key *key; 363 int err; 364 365 if (!ieee80211_sdata_running(sdata)) 366 return -ENETDOWN; 367 368 /* reject WEP and TKIP keys if WEP failed to initialize */ 369 switch (params->cipher) { 370 case WLAN_CIPHER_SUITE_WEP40: 371 case WLAN_CIPHER_SUITE_TKIP: 372 case WLAN_CIPHER_SUITE_WEP104: 373 if (IS_ERR(local->wep_tx_tfm)) 374 return -EINVAL; 375 break; 376 case WLAN_CIPHER_SUITE_CCMP: 377 case WLAN_CIPHER_SUITE_CCMP_256: 378 case WLAN_CIPHER_SUITE_AES_CMAC: 379 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 380 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 381 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 382 case WLAN_CIPHER_SUITE_GCMP: 383 case WLAN_CIPHER_SUITE_GCMP_256: 384 break; 385 default: 386 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); 387 break; 388 } 389 390 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 391 params->key, params->seq_len, params->seq, 392 cs); 393 if (IS_ERR(key)) 394 return PTR_ERR(key); 395 396 if (pairwise) 397 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 398 399 mutex_lock(&local->sta_mtx); 400 401 if (mac_addr) { 402 sta = sta_info_get_bss(sdata, mac_addr); 403 /* 404 * The ASSOC test makes sure the driver is ready to 405 * receive the key. When wpa_supplicant has roamed 406 * using FT, it attempts to set the key before 407 * association has completed, this rejects that attempt 408 * so it will set the key again after association. 409 * 410 * TODO: accept the key if we have a station entry and 411 * add it to the device after the station. 412 */ 413 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 414 ieee80211_key_free_unused(key); 415 err = -ENOENT; 416 goto out_unlock; 417 } 418 } 419 420 switch (sdata->vif.type) { 421 case NL80211_IFTYPE_STATION: 422 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 423 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 424 break; 425 case NL80211_IFTYPE_AP: 426 case NL80211_IFTYPE_AP_VLAN: 427 /* Keys without a station are used for TX only */ 428 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 429 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 430 break; 431 case NL80211_IFTYPE_ADHOC: 432 /* no MFP (yet) */ 433 break; 434 case NL80211_IFTYPE_MESH_POINT: 435 #ifdef CONFIG_MAC80211_MESH 436 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 437 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 438 break; 439 #endif 440 case NL80211_IFTYPE_WDS: 441 case NL80211_IFTYPE_MONITOR: 442 case NL80211_IFTYPE_P2P_DEVICE: 443 case NL80211_IFTYPE_NAN: 444 case NL80211_IFTYPE_UNSPECIFIED: 445 case NUM_NL80211_IFTYPES: 446 case NL80211_IFTYPE_P2P_CLIENT: 447 case NL80211_IFTYPE_P2P_GO: 448 case NL80211_IFTYPE_OCB: 449 /* shouldn't happen */ 450 WARN_ON_ONCE(1); 451 break; 452 } 453 454 if (sta) 455 sta->cipher_scheme = cs; 456 457 err = ieee80211_key_link(key, sdata, sta); 458 459 out_unlock: 460 mutex_unlock(&local->sta_mtx); 461 462 return err; 463 } 464 465 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 466 u8 key_idx, bool pairwise, const u8 *mac_addr) 467 { 468 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 469 struct ieee80211_local *local = sdata->local; 470 struct sta_info *sta; 471 struct ieee80211_key *key = NULL; 472 int ret; 473 474 mutex_lock(&local->sta_mtx); 475 mutex_lock(&local->key_mtx); 476 477 if (mac_addr) { 478 ret = -ENOENT; 479 480 sta = sta_info_get_bss(sdata, mac_addr); 481 if (!sta) 482 goto out_unlock; 483 484 if (pairwise) 485 key = key_mtx_dereference(local, sta->ptk[key_idx]); 486 else 487 key = key_mtx_dereference(local, sta->gtk[key_idx]); 488 } else 489 key = key_mtx_dereference(local, sdata->keys[key_idx]); 490 491 if (!key) { 492 ret = -ENOENT; 493 goto out_unlock; 494 } 495 496 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 497 498 ret = 0; 499 out_unlock: 500 mutex_unlock(&local->key_mtx); 501 mutex_unlock(&local->sta_mtx); 502 503 return ret; 504 } 505 506 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 507 u8 key_idx, bool pairwise, const u8 *mac_addr, 508 void *cookie, 509 void (*callback)(void *cookie, 510 struct key_params *params)) 511 { 512 struct ieee80211_sub_if_data *sdata; 513 struct sta_info *sta = NULL; 514 u8 seq[6] = {0}; 515 struct key_params params; 516 struct ieee80211_key *key = NULL; 517 u64 pn64; 518 u32 iv32; 519 u16 iv16; 520 int err = -ENOENT; 521 struct ieee80211_key_seq kseq = {}; 522 523 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 524 525 rcu_read_lock(); 526 527 if (mac_addr) { 528 sta = sta_info_get_bss(sdata, mac_addr); 529 if (!sta) 530 goto out; 531 532 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 533 key = rcu_dereference(sta->ptk[key_idx]); 534 else if (!pairwise && 535 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) 536 key = rcu_dereference(sta->gtk[key_idx]); 537 } else 538 key = rcu_dereference(sdata->keys[key_idx]); 539 540 if (!key) 541 goto out; 542 543 memset(¶ms, 0, sizeof(params)); 544 545 params.cipher = key->conf.cipher; 546 547 switch (key->conf.cipher) { 548 case WLAN_CIPHER_SUITE_TKIP: 549 pn64 = atomic64_read(&key->conf.tx_pn); 550 iv32 = TKIP_PN_TO_IV32(pn64); 551 iv16 = TKIP_PN_TO_IV16(pn64); 552 553 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 554 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 555 drv_get_key_seq(sdata->local, key, &kseq); 556 iv32 = kseq.tkip.iv32; 557 iv16 = kseq.tkip.iv16; 558 } 559 560 seq[0] = iv16 & 0xff; 561 seq[1] = (iv16 >> 8) & 0xff; 562 seq[2] = iv32 & 0xff; 563 seq[3] = (iv32 >> 8) & 0xff; 564 seq[4] = (iv32 >> 16) & 0xff; 565 seq[5] = (iv32 >> 24) & 0xff; 566 params.seq = seq; 567 params.seq_len = 6; 568 break; 569 case WLAN_CIPHER_SUITE_CCMP: 570 case WLAN_CIPHER_SUITE_CCMP_256: 571 case WLAN_CIPHER_SUITE_AES_CMAC: 572 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 573 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 574 offsetof(typeof(kseq), aes_cmac)); 575 /* fall through */ 576 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 577 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 578 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 579 offsetof(typeof(kseq), aes_gmac)); 580 /* fall through */ 581 case WLAN_CIPHER_SUITE_GCMP: 582 case WLAN_CIPHER_SUITE_GCMP_256: 583 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 584 offsetof(typeof(kseq), gcmp)); 585 586 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 587 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 588 drv_get_key_seq(sdata->local, key, &kseq); 589 memcpy(seq, kseq.ccmp.pn, 6); 590 } else { 591 pn64 = atomic64_read(&key->conf.tx_pn); 592 seq[0] = pn64; 593 seq[1] = pn64 >> 8; 594 seq[2] = pn64 >> 16; 595 seq[3] = pn64 >> 24; 596 seq[4] = pn64 >> 32; 597 seq[5] = pn64 >> 40; 598 } 599 params.seq = seq; 600 params.seq_len = 6; 601 break; 602 default: 603 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 604 break; 605 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 606 break; 607 drv_get_key_seq(sdata->local, key, &kseq); 608 params.seq = kseq.hw.seq; 609 params.seq_len = kseq.hw.seq_len; 610 break; 611 } 612 613 params.key = key->conf.key; 614 params.key_len = key->conf.keylen; 615 616 callback(cookie, ¶ms); 617 err = 0; 618 619 out: 620 rcu_read_unlock(); 621 return err; 622 } 623 624 static int ieee80211_config_default_key(struct wiphy *wiphy, 625 struct net_device *dev, 626 u8 key_idx, bool uni, 627 bool multi) 628 { 629 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 630 631 ieee80211_set_default_key(sdata, key_idx, uni, multi); 632 633 return 0; 634 } 635 636 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 637 struct net_device *dev, 638 u8 key_idx) 639 { 640 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 641 642 ieee80211_set_default_mgmt_key(sdata, key_idx); 643 644 return 0; 645 } 646 647 void sta_set_rate_info_tx(struct sta_info *sta, 648 const struct ieee80211_tx_rate *rate, 649 struct rate_info *rinfo) 650 { 651 rinfo->flags = 0; 652 if (rate->flags & IEEE80211_TX_RC_MCS) { 653 rinfo->flags |= RATE_INFO_FLAGS_MCS; 654 rinfo->mcs = rate->idx; 655 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 656 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 657 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 658 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 659 } else { 660 struct ieee80211_supported_band *sband; 661 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 662 u16 brate; 663 664 sband = ieee80211_get_sband(sta->sdata); 665 if (sband) { 666 brate = sband->bitrates[rate->idx].bitrate; 667 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 668 } 669 } 670 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 671 rinfo->bw = RATE_INFO_BW_40; 672 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 673 rinfo->bw = RATE_INFO_BW_80; 674 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 675 rinfo->bw = RATE_INFO_BW_160; 676 else 677 rinfo->bw = RATE_INFO_BW_20; 678 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 679 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 680 } 681 682 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 683 int idx, u8 *mac, struct station_info *sinfo) 684 { 685 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 686 struct ieee80211_local *local = sdata->local; 687 struct sta_info *sta; 688 int ret = -ENOENT; 689 690 mutex_lock(&local->sta_mtx); 691 692 sta = sta_info_get_by_idx(sdata, idx); 693 if (sta) { 694 ret = 0; 695 memcpy(mac, sta->sta.addr, ETH_ALEN); 696 sta_set_sinfo(sta, sinfo, true); 697 } 698 699 mutex_unlock(&local->sta_mtx); 700 701 return ret; 702 } 703 704 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 705 int idx, struct survey_info *survey) 706 { 707 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 708 709 return drv_get_survey(local, idx, survey); 710 } 711 712 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 713 const u8 *mac, struct station_info *sinfo) 714 { 715 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 716 struct ieee80211_local *local = sdata->local; 717 struct sta_info *sta; 718 int ret = -ENOENT; 719 720 mutex_lock(&local->sta_mtx); 721 722 sta = sta_info_get_bss(sdata, mac); 723 if (sta) { 724 ret = 0; 725 sta_set_sinfo(sta, sinfo, true); 726 } 727 728 mutex_unlock(&local->sta_mtx); 729 730 return ret; 731 } 732 733 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 734 struct cfg80211_chan_def *chandef) 735 { 736 struct ieee80211_local *local = wiphy_priv(wiphy); 737 struct ieee80211_sub_if_data *sdata; 738 int ret = 0; 739 740 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 741 return 0; 742 743 mutex_lock(&local->mtx); 744 if (local->use_chanctx) { 745 sdata = rtnl_dereference(local->monitor_sdata); 746 if (sdata) { 747 ieee80211_vif_release_channel(sdata); 748 ret = ieee80211_vif_use_channel(sdata, chandef, 749 IEEE80211_CHANCTX_EXCLUSIVE); 750 } 751 } else if (local->open_count == local->monitors) { 752 local->_oper_chandef = *chandef; 753 ieee80211_hw_config(local, 0); 754 } 755 756 if (ret == 0) 757 local->monitor_chandef = *chandef; 758 mutex_unlock(&local->mtx); 759 760 return ret; 761 } 762 763 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 764 const u8 *resp, size_t resp_len, 765 const struct ieee80211_csa_settings *csa) 766 { 767 struct probe_resp *new, *old; 768 769 if (!resp || !resp_len) 770 return 1; 771 772 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 773 774 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 775 if (!new) 776 return -ENOMEM; 777 778 new->len = resp_len; 779 memcpy(new->data, resp, resp_len); 780 781 if (csa) 782 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp, 783 csa->n_counter_offsets_presp * 784 sizeof(new->csa_counter_offsets[0])); 785 786 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 787 if (old) 788 kfree_rcu(old, rcu_head); 789 790 return 0; 791 } 792 793 static int ieee80211_set_ftm_responder_params( 794 struct ieee80211_sub_if_data *sdata, 795 const u8 *lci, size_t lci_len, 796 const u8 *civicloc, size_t civicloc_len) 797 { 798 struct ieee80211_ftm_responder_params *new, *old; 799 struct ieee80211_bss_conf *bss_conf; 800 u8 *pos; 801 int len; 802 803 if (!lci_len && !civicloc_len) 804 return 0; 805 806 bss_conf = &sdata->vif.bss_conf; 807 old = bss_conf->ftmr_params; 808 len = lci_len + civicloc_len; 809 810 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 811 if (!new) 812 return -ENOMEM; 813 814 pos = (u8 *)(new + 1); 815 if (lci_len) { 816 new->lci_len = lci_len; 817 new->lci = pos; 818 memcpy(pos, lci, lci_len); 819 pos += lci_len; 820 } 821 822 if (civicloc_len) { 823 new->civicloc_len = civicloc_len; 824 new->civicloc = pos; 825 memcpy(pos, civicloc, civicloc_len); 826 pos += civicloc_len; 827 } 828 829 bss_conf->ftmr_params = new; 830 kfree(old); 831 832 return 0; 833 } 834 835 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 836 struct cfg80211_beacon_data *params, 837 const struct ieee80211_csa_settings *csa) 838 { 839 struct beacon_data *new, *old; 840 int new_head_len, new_tail_len; 841 int size, err; 842 u32 changed = BSS_CHANGED_BEACON; 843 844 old = sdata_dereference(sdata->u.ap.beacon, sdata); 845 846 847 /* Need to have a beacon head if we don't have one yet */ 848 if (!params->head && !old) 849 return -EINVAL; 850 851 /* new or old head? */ 852 if (params->head) 853 new_head_len = params->head_len; 854 else 855 new_head_len = old->head_len; 856 857 /* new or old tail? */ 858 if (params->tail || !old) 859 /* params->tail_len will be zero for !params->tail */ 860 new_tail_len = params->tail_len; 861 else 862 new_tail_len = old->tail_len; 863 864 size = sizeof(*new) + new_head_len + new_tail_len; 865 866 new = kzalloc(size, GFP_KERNEL); 867 if (!new) 868 return -ENOMEM; 869 870 /* start filling the new info now */ 871 872 /* 873 * pointers go into the block we allocated, 874 * memory is | beacon_data | head | tail | 875 */ 876 new->head = ((u8 *) new) + sizeof(*new); 877 new->tail = new->head + new_head_len; 878 new->head_len = new_head_len; 879 new->tail_len = new_tail_len; 880 881 if (csa) { 882 new->csa_current_counter = csa->count; 883 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon, 884 csa->n_counter_offsets_beacon * 885 sizeof(new->csa_counter_offsets[0])); 886 } 887 888 /* copy in head */ 889 if (params->head) 890 memcpy(new->head, params->head, new_head_len); 891 else 892 memcpy(new->head, old->head, new_head_len); 893 894 /* copy in optional tail */ 895 if (params->tail) 896 memcpy(new->tail, params->tail, new_tail_len); 897 else 898 if (old) 899 memcpy(new->tail, old->tail, new_tail_len); 900 901 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 902 params->probe_resp_len, csa); 903 if (err < 0) 904 return err; 905 if (err == 0) 906 changed |= BSS_CHANGED_AP_PROBE_RESP; 907 908 if (params->ftm_responder != -1) { 909 sdata->vif.bss_conf.ftm_responder = params->ftm_responder; 910 err = ieee80211_set_ftm_responder_params(sdata, 911 params->lci, 912 params->lci_len, 913 params->civicloc, 914 params->civicloc_len); 915 916 if (err < 0) 917 return err; 918 919 changed |= BSS_CHANGED_FTM_RESPONDER; 920 } 921 922 rcu_assign_pointer(sdata->u.ap.beacon, new); 923 924 if (old) 925 kfree_rcu(old, rcu_head); 926 927 return changed; 928 } 929 930 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 931 struct cfg80211_ap_settings *params) 932 { 933 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 934 struct ieee80211_local *local = sdata->local; 935 struct beacon_data *old; 936 struct ieee80211_sub_if_data *vlan; 937 u32 changed = BSS_CHANGED_BEACON_INT | 938 BSS_CHANGED_BEACON_ENABLED | 939 BSS_CHANGED_BEACON | 940 BSS_CHANGED_SSID | 941 BSS_CHANGED_P2P_PS | 942 BSS_CHANGED_TXPOWER; 943 int err; 944 945 old = sdata_dereference(sdata->u.ap.beacon, sdata); 946 if (old) 947 return -EALREADY; 948 949 switch (params->smps_mode) { 950 case NL80211_SMPS_OFF: 951 sdata->smps_mode = IEEE80211_SMPS_OFF; 952 break; 953 case NL80211_SMPS_STATIC: 954 sdata->smps_mode = IEEE80211_SMPS_STATIC; 955 break; 956 case NL80211_SMPS_DYNAMIC: 957 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC; 958 break; 959 default: 960 return -EINVAL; 961 } 962 sdata->u.ap.req_smps = sdata->smps_mode; 963 964 sdata->needed_rx_chains = sdata->local->rx_chains; 965 966 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 967 968 if (params->he_cap) 969 sdata->vif.bss_conf.he_support = true; 970 971 mutex_lock(&local->mtx); 972 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 973 IEEE80211_CHANCTX_SHARED); 974 if (!err) 975 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 976 mutex_unlock(&local->mtx); 977 if (err) 978 return err; 979 980 /* 981 * Apply control port protocol, this allows us to 982 * not encrypt dynamic WEP control frames. 983 */ 984 sdata->control_port_protocol = params->crypto.control_port_ethertype; 985 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 986 sdata->control_port_over_nl80211 = 987 params->crypto.control_port_over_nl80211; 988 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 989 ¶ms->crypto, 990 sdata->vif.type); 991 992 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 993 vlan->control_port_protocol = 994 params->crypto.control_port_ethertype; 995 vlan->control_port_no_encrypt = 996 params->crypto.control_port_no_encrypt; 997 vlan->control_port_over_nl80211 = 998 params->crypto.control_port_over_nl80211; 999 vlan->encrypt_headroom = 1000 ieee80211_cs_headroom(sdata->local, 1001 ¶ms->crypto, 1002 vlan->vif.type); 1003 } 1004 1005 sdata->vif.bss_conf.dtim_period = params->dtim_period; 1006 sdata->vif.bss_conf.enable_beacon = true; 1007 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 1008 1009 sdata->vif.bss_conf.ssid_len = params->ssid_len; 1010 if (params->ssid_len) 1011 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 1012 params->ssid_len); 1013 sdata->vif.bss_conf.hidden_ssid = 1014 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1015 1016 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 1017 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 1018 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 1019 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1020 if (params->p2p_opp_ps) 1021 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1022 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1023 1024 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); 1025 if (err < 0) { 1026 ieee80211_vif_release_channel(sdata); 1027 return err; 1028 } 1029 changed |= err; 1030 1031 err = drv_start_ap(sdata->local, sdata); 1032 if (err) { 1033 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1034 1035 if (old) 1036 kfree_rcu(old, rcu_head); 1037 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1038 ieee80211_vif_release_channel(sdata); 1039 return err; 1040 } 1041 1042 ieee80211_recalc_dtim(local, sdata); 1043 ieee80211_bss_info_change_notify(sdata, changed); 1044 1045 netif_carrier_on(dev); 1046 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1047 netif_carrier_on(vlan->dev); 1048 1049 return 0; 1050 } 1051 1052 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1053 struct cfg80211_beacon_data *params) 1054 { 1055 struct ieee80211_sub_if_data *sdata; 1056 struct beacon_data *old; 1057 int err; 1058 1059 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1060 sdata_assert_lock(sdata); 1061 1062 /* don't allow changing the beacon while CSA is in place - offset 1063 * of channel switch counter may change 1064 */ 1065 if (sdata->vif.csa_active) 1066 return -EBUSY; 1067 1068 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1069 if (!old) 1070 return -ENOENT; 1071 1072 err = ieee80211_assign_beacon(sdata, params, NULL); 1073 if (err < 0) 1074 return err; 1075 ieee80211_bss_info_change_notify(sdata, err); 1076 return 0; 1077 } 1078 1079 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1080 { 1081 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1082 struct ieee80211_sub_if_data *vlan; 1083 struct ieee80211_local *local = sdata->local; 1084 struct beacon_data *old_beacon; 1085 struct probe_resp *old_probe_resp; 1086 struct cfg80211_chan_def chandef; 1087 1088 sdata_assert_lock(sdata); 1089 1090 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1091 if (!old_beacon) 1092 return -ENOENT; 1093 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1094 1095 /* abort any running channel switch */ 1096 mutex_lock(&local->mtx); 1097 sdata->vif.csa_active = false; 1098 if (sdata->csa_block_tx) { 1099 ieee80211_wake_vif_queues(local, sdata, 1100 IEEE80211_QUEUE_STOP_REASON_CSA); 1101 sdata->csa_block_tx = false; 1102 } 1103 1104 mutex_unlock(&local->mtx); 1105 1106 kfree(sdata->u.ap.next_beacon); 1107 sdata->u.ap.next_beacon = NULL; 1108 1109 /* turn off carrier for this interface and dependent VLANs */ 1110 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1111 netif_carrier_off(vlan->dev); 1112 netif_carrier_off(dev); 1113 1114 /* remove beacon and probe response */ 1115 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1116 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1117 kfree_rcu(old_beacon, rcu_head); 1118 if (old_probe_resp) 1119 kfree_rcu(old_probe_resp, rcu_head); 1120 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF; 1121 1122 kfree(sdata->vif.bss_conf.ftmr_params); 1123 sdata->vif.bss_conf.ftmr_params = NULL; 1124 1125 __sta_info_flush(sdata, true); 1126 ieee80211_free_keys(sdata, true); 1127 1128 sdata->vif.bss_conf.enable_beacon = false; 1129 sdata->vif.bss_conf.ssid_len = 0; 1130 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1131 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1132 1133 if (sdata->wdev.cac_started) { 1134 chandef = sdata->vif.bss_conf.chandef; 1135 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1136 cfg80211_cac_event(sdata->dev, &chandef, 1137 NL80211_RADAR_CAC_ABORTED, 1138 GFP_KERNEL); 1139 } 1140 1141 drv_stop_ap(sdata->local, sdata); 1142 1143 /* free all potentially still buffered bcast frames */ 1144 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1145 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1146 1147 mutex_lock(&local->mtx); 1148 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1149 ieee80211_vif_release_channel(sdata); 1150 mutex_unlock(&local->mtx); 1151 1152 return 0; 1153 } 1154 1155 static int sta_apply_auth_flags(struct ieee80211_local *local, 1156 struct sta_info *sta, 1157 u32 mask, u32 set) 1158 { 1159 int ret; 1160 1161 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1162 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1163 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1164 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1165 if (ret) 1166 return ret; 1167 } 1168 1169 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1170 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1171 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1172 /* 1173 * When peer becomes associated, init rate control as 1174 * well. Some drivers require rate control initialized 1175 * before drv_sta_state() is called. 1176 */ 1177 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1178 rate_control_rate_init(sta); 1179 1180 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1181 if (ret) 1182 return ret; 1183 } 1184 1185 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1186 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1187 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1188 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1189 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1190 else 1191 ret = 0; 1192 if (ret) 1193 return ret; 1194 } 1195 1196 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1197 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1198 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1199 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1200 if (ret) 1201 return ret; 1202 } 1203 1204 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1205 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1206 test_sta_flag(sta, WLAN_STA_AUTH)) { 1207 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1208 if (ret) 1209 return ret; 1210 } 1211 1212 return 0; 1213 } 1214 1215 static void sta_apply_mesh_params(struct ieee80211_local *local, 1216 struct sta_info *sta, 1217 struct station_parameters *params) 1218 { 1219 #ifdef CONFIG_MAC80211_MESH 1220 struct ieee80211_sub_if_data *sdata = sta->sdata; 1221 u32 changed = 0; 1222 1223 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1224 switch (params->plink_state) { 1225 case NL80211_PLINK_ESTAB: 1226 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1227 changed = mesh_plink_inc_estab_count(sdata); 1228 sta->mesh->plink_state = params->plink_state; 1229 sta->mesh->aid = params->peer_aid; 1230 1231 ieee80211_mps_sta_status_update(sta); 1232 changed |= ieee80211_mps_set_sta_local_pm(sta, 1233 sdata->u.mesh.mshcfg.power_mode); 1234 break; 1235 case NL80211_PLINK_LISTEN: 1236 case NL80211_PLINK_BLOCKED: 1237 case NL80211_PLINK_OPN_SNT: 1238 case NL80211_PLINK_OPN_RCVD: 1239 case NL80211_PLINK_CNF_RCVD: 1240 case NL80211_PLINK_HOLDING: 1241 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1242 changed = mesh_plink_dec_estab_count(sdata); 1243 sta->mesh->plink_state = params->plink_state; 1244 1245 ieee80211_mps_sta_status_update(sta); 1246 changed |= ieee80211_mps_set_sta_local_pm(sta, 1247 NL80211_MESH_POWER_UNKNOWN); 1248 break; 1249 default: 1250 /* nothing */ 1251 break; 1252 } 1253 } 1254 1255 switch (params->plink_action) { 1256 case NL80211_PLINK_ACTION_NO_ACTION: 1257 /* nothing */ 1258 break; 1259 case NL80211_PLINK_ACTION_OPEN: 1260 changed |= mesh_plink_open(sta); 1261 break; 1262 case NL80211_PLINK_ACTION_BLOCK: 1263 changed |= mesh_plink_block(sta); 1264 break; 1265 } 1266 1267 if (params->local_pm) 1268 changed |= ieee80211_mps_set_sta_local_pm(sta, 1269 params->local_pm); 1270 1271 ieee80211_mbss_info_change_notify(sdata, changed); 1272 #endif 1273 } 1274 1275 static int sta_apply_parameters(struct ieee80211_local *local, 1276 struct sta_info *sta, 1277 struct station_parameters *params) 1278 { 1279 int ret = 0; 1280 struct ieee80211_supported_band *sband; 1281 struct ieee80211_sub_if_data *sdata = sta->sdata; 1282 u32 mask, set; 1283 1284 sband = ieee80211_get_sband(sdata); 1285 if (!sband) 1286 return -EINVAL; 1287 1288 mask = params->sta_flags_mask; 1289 set = params->sta_flags_set; 1290 1291 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1292 /* 1293 * In mesh mode, ASSOCIATED isn't part of the nl80211 1294 * API but must follow AUTHENTICATED for driver state. 1295 */ 1296 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1297 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1298 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1299 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1300 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1301 /* 1302 * TDLS -- everything follows authorized, but 1303 * only becoming authorized is possible, not 1304 * going back 1305 */ 1306 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1307 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1308 BIT(NL80211_STA_FLAG_ASSOCIATED); 1309 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1310 BIT(NL80211_STA_FLAG_ASSOCIATED); 1311 } 1312 } 1313 1314 if (mask & BIT(NL80211_STA_FLAG_WME) && 1315 local->hw.queues >= IEEE80211_NUM_ACS) 1316 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1317 1318 /* auth flags will be set later for TDLS, 1319 * and for unassociated stations that move to assocaited */ 1320 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1321 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1322 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1323 ret = sta_apply_auth_flags(local, sta, mask, set); 1324 if (ret) 1325 return ret; 1326 } 1327 1328 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1329 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1330 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1331 else 1332 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1333 } 1334 1335 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1336 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1337 if (set & BIT(NL80211_STA_FLAG_MFP)) 1338 set_sta_flag(sta, WLAN_STA_MFP); 1339 else 1340 clear_sta_flag(sta, WLAN_STA_MFP); 1341 } 1342 1343 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1344 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1345 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1346 else 1347 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1348 } 1349 1350 /* mark TDLS channel switch support, if the AP allows it */ 1351 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1352 !sdata->u.mgd.tdls_chan_switch_prohibited && 1353 params->ext_capab_len >= 4 && 1354 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1355 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1356 1357 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1358 !sdata->u.mgd.tdls_wider_bw_prohibited && 1359 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1360 params->ext_capab_len >= 8 && 1361 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1362 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1363 1364 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1365 sta->sta.uapsd_queues = params->uapsd_queues; 1366 sta->sta.max_sp = params->max_sp; 1367 } 1368 1369 /* The sender might not have sent the last bit, consider it to be 0 */ 1370 if (params->ext_capab_len >= 8) { 1371 u8 val = (params->ext_capab[7] & 1372 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1373 1374 /* we did get all the bits, take the MSB as well */ 1375 if (params->ext_capab_len >= 9) { 1376 u8 val_msb = params->ext_capab[8] & 1377 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1378 val_msb <<= 1; 1379 val |= val_msb; 1380 } 1381 1382 switch (val) { 1383 case 1: 1384 sta->sta.max_amsdu_subframes = 32; 1385 break; 1386 case 2: 1387 sta->sta.max_amsdu_subframes = 16; 1388 break; 1389 case 3: 1390 sta->sta.max_amsdu_subframes = 8; 1391 break; 1392 default: 1393 sta->sta.max_amsdu_subframes = 0; 1394 } 1395 } 1396 1397 /* 1398 * cfg80211 validates this (1-2007) and allows setting the AID 1399 * only when creating a new station entry 1400 */ 1401 if (params->aid) 1402 sta->sta.aid = params->aid; 1403 1404 /* 1405 * Some of the following updates would be racy if called on an 1406 * existing station, via ieee80211_change_station(). However, 1407 * all such changes are rejected by cfg80211 except for updates 1408 * changing the supported rates on an existing but not yet used 1409 * TDLS peer. 1410 */ 1411 1412 if (params->listen_interval >= 0) 1413 sta->listen_interval = params->listen_interval; 1414 1415 if (params->supported_rates) { 1416 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1417 sband, params->supported_rates, 1418 params->supported_rates_len, 1419 &sta->sta.supp_rates[sband->band]); 1420 } 1421 1422 if (params->ht_capa) 1423 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1424 params->ht_capa, sta); 1425 1426 /* VHT can override some HT caps such as the A-MSDU max length */ 1427 if (params->vht_capa) 1428 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1429 params->vht_capa, sta); 1430 1431 if (params->he_capa) 1432 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1433 (void *)params->he_capa, 1434 params->he_capa_len, sta); 1435 1436 if (params->opmode_notif_used) { 1437 /* returned value is only needed for rc update, but the 1438 * rc isn't initialized here yet, so ignore it 1439 */ 1440 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1441 sband->band); 1442 } 1443 1444 if (params->support_p2p_ps >= 0) 1445 sta->sta.support_p2p_ps = params->support_p2p_ps; 1446 1447 if (ieee80211_vif_is_mesh(&sdata->vif)) 1448 sta_apply_mesh_params(local, sta, params); 1449 1450 /* set the STA state after all sta info from usermode has been set */ 1451 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1452 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1453 ret = sta_apply_auth_flags(local, sta, mask, set); 1454 if (ret) 1455 return ret; 1456 } 1457 1458 return 0; 1459 } 1460 1461 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1462 const u8 *mac, 1463 struct station_parameters *params) 1464 { 1465 struct ieee80211_local *local = wiphy_priv(wiphy); 1466 struct sta_info *sta; 1467 struct ieee80211_sub_if_data *sdata; 1468 int err; 1469 int layer2_update; 1470 1471 if (params->vlan) { 1472 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1473 1474 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1475 sdata->vif.type != NL80211_IFTYPE_AP) 1476 return -EINVAL; 1477 } else 1478 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1479 1480 if (ether_addr_equal(mac, sdata->vif.addr)) 1481 return -EINVAL; 1482 1483 if (is_multicast_ether_addr(mac)) 1484 return -EINVAL; 1485 1486 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1487 if (!sta) 1488 return -ENOMEM; 1489 1490 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1491 sta->sta.tdls = true; 1492 1493 err = sta_apply_parameters(local, sta, params); 1494 if (err) { 1495 sta_info_free(local, sta); 1496 return err; 1497 } 1498 1499 /* 1500 * for TDLS and for unassociated station, rate control should be 1501 * initialized only when rates are known and station is marked 1502 * authorized/associated 1503 */ 1504 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1505 test_sta_flag(sta, WLAN_STA_ASSOC)) 1506 rate_control_rate_init(sta); 1507 1508 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 1509 sdata->vif.type == NL80211_IFTYPE_AP; 1510 1511 err = sta_info_insert_rcu(sta); 1512 if (err) { 1513 rcu_read_unlock(); 1514 return err; 1515 } 1516 1517 if (layer2_update) 1518 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1519 1520 rcu_read_unlock(); 1521 1522 return 0; 1523 } 1524 1525 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1526 struct station_del_parameters *params) 1527 { 1528 struct ieee80211_sub_if_data *sdata; 1529 1530 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1531 1532 if (params->mac) 1533 return sta_info_destroy_addr_bss(sdata, params->mac); 1534 1535 sta_info_flush(sdata); 1536 return 0; 1537 } 1538 1539 static int ieee80211_change_station(struct wiphy *wiphy, 1540 struct net_device *dev, const u8 *mac, 1541 struct station_parameters *params) 1542 { 1543 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1544 struct ieee80211_local *local = wiphy_priv(wiphy); 1545 struct sta_info *sta; 1546 struct ieee80211_sub_if_data *vlansdata; 1547 enum cfg80211_station_type statype; 1548 int err; 1549 1550 mutex_lock(&local->sta_mtx); 1551 1552 sta = sta_info_get_bss(sdata, mac); 1553 if (!sta) { 1554 err = -ENOENT; 1555 goto out_err; 1556 } 1557 1558 switch (sdata->vif.type) { 1559 case NL80211_IFTYPE_MESH_POINT: 1560 if (sdata->u.mesh.user_mpm) 1561 statype = CFG80211_STA_MESH_PEER_USER; 1562 else 1563 statype = CFG80211_STA_MESH_PEER_KERNEL; 1564 break; 1565 case NL80211_IFTYPE_ADHOC: 1566 statype = CFG80211_STA_IBSS; 1567 break; 1568 case NL80211_IFTYPE_STATION: 1569 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1570 statype = CFG80211_STA_AP_STA; 1571 break; 1572 } 1573 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1574 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1575 else 1576 statype = CFG80211_STA_TDLS_PEER_SETUP; 1577 break; 1578 case NL80211_IFTYPE_AP: 1579 case NL80211_IFTYPE_AP_VLAN: 1580 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1581 statype = CFG80211_STA_AP_CLIENT; 1582 else 1583 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1584 break; 1585 default: 1586 err = -EOPNOTSUPP; 1587 goto out_err; 1588 } 1589 1590 err = cfg80211_check_station_change(wiphy, params, statype); 1591 if (err) 1592 goto out_err; 1593 1594 if (params->vlan && params->vlan != sta->sdata->dev) { 1595 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1596 1597 if (params->vlan->ieee80211_ptr->use_4addr) { 1598 if (vlansdata->u.vlan.sta) { 1599 err = -EBUSY; 1600 goto out_err; 1601 } 1602 1603 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1604 __ieee80211_check_fast_rx_iface(vlansdata); 1605 } 1606 1607 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1608 sta->sdata->u.vlan.sta) 1609 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1610 1611 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1612 ieee80211_vif_dec_num_mcast(sta->sdata); 1613 1614 sta->sdata = vlansdata; 1615 ieee80211_check_fast_xmit(sta); 1616 1617 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1618 ieee80211_vif_inc_num_mcast(sta->sdata); 1619 1620 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1621 } 1622 1623 err = sta_apply_parameters(local, sta, params); 1624 if (err) 1625 goto out_err; 1626 1627 mutex_unlock(&local->sta_mtx); 1628 1629 if ((sdata->vif.type == NL80211_IFTYPE_AP || 1630 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && 1631 sta->known_smps_mode != sta->sdata->bss->req_smps && 1632 test_sta_flag(sta, WLAN_STA_AUTHORIZED) && 1633 sta_info_tx_streams(sta) != 1) { 1634 ht_dbg(sta->sdata, 1635 "%pM just authorized and MIMO capable - update SMPS\n", 1636 sta->sta.addr); 1637 ieee80211_send_smps_action(sta->sdata, 1638 sta->sdata->bss->req_smps, 1639 sta->sta.addr, 1640 sta->sdata->vif.bss_conf.bssid); 1641 } 1642 1643 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1644 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1645 ieee80211_recalc_ps(local); 1646 ieee80211_recalc_ps_vif(sdata); 1647 } 1648 1649 return 0; 1650 out_err: 1651 mutex_unlock(&local->sta_mtx); 1652 return err; 1653 } 1654 1655 #ifdef CONFIG_MAC80211_MESH 1656 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1657 const u8 *dst, const u8 *next_hop) 1658 { 1659 struct ieee80211_sub_if_data *sdata; 1660 struct mesh_path *mpath; 1661 struct sta_info *sta; 1662 1663 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1664 1665 rcu_read_lock(); 1666 sta = sta_info_get(sdata, next_hop); 1667 if (!sta) { 1668 rcu_read_unlock(); 1669 return -ENOENT; 1670 } 1671 1672 mpath = mesh_path_add(sdata, dst); 1673 if (IS_ERR(mpath)) { 1674 rcu_read_unlock(); 1675 return PTR_ERR(mpath); 1676 } 1677 1678 mesh_path_fix_nexthop(mpath, sta); 1679 1680 rcu_read_unlock(); 1681 return 0; 1682 } 1683 1684 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1685 const u8 *dst) 1686 { 1687 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1688 1689 if (dst) 1690 return mesh_path_del(sdata, dst); 1691 1692 mesh_path_flush_by_iface(sdata); 1693 return 0; 1694 } 1695 1696 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1697 const u8 *dst, const u8 *next_hop) 1698 { 1699 struct ieee80211_sub_if_data *sdata; 1700 struct mesh_path *mpath; 1701 struct sta_info *sta; 1702 1703 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1704 1705 rcu_read_lock(); 1706 1707 sta = sta_info_get(sdata, next_hop); 1708 if (!sta) { 1709 rcu_read_unlock(); 1710 return -ENOENT; 1711 } 1712 1713 mpath = mesh_path_lookup(sdata, dst); 1714 if (!mpath) { 1715 rcu_read_unlock(); 1716 return -ENOENT; 1717 } 1718 1719 mesh_path_fix_nexthop(mpath, sta); 1720 1721 rcu_read_unlock(); 1722 return 0; 1723 } 1724 1725 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1726 struct mpath_info *pinfo) 1727 { 1728 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1729 1730 if (next_hop_sta) 1731 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1732 else 1733 eth_zero_addr(next_hop); 1734 1735 memset(pinfo, 0, sizeof(*pinfo)); 1736 1737 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1738 1739 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1740 MPATH_INFO_SN | 1741 MPATH_INFO_METRIC | 1742 MPATH_INFO_EXPTIME | 1743 MPATH_INFO_DISCOVERY_TIMEOUT | 1744 MPATH_INFO_DISCOVERY_RETRIES | 1745 MPATH_INFO_FLAGS; 1746 1747 pinfo->frame_qlen = mpath->frame_queue.qlen; 1748 pinfo->sn = mpath->sn; 1749 pinfo->metric = mpath->metric; 1750 if (time_before(jiffies, mpath->exp_time)) 1751 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1752 pinfo->discovery_timeout = 1753 jiffies_to_msecs(mpath->discovery_timeout); 1754 pinfo->discovery_retries = mpath->discovery_retries; 1755 if (mpath->flags & MESH_PATH_ACTIVE) 1756 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1757 if (mpath->flags & MESH_PATH_RESOLVING) 1758 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1759 if (mpath->flags & MESH_PATH_SN_VALID) 1760 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1761 if (mpath->flags & MESH_PATH_FIXED) 1762 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1763 if (mpath->flags & MESH_PATH_RESOLVED) 1764 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1765 } 1766 1767 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1768 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1769 1770 { 1771 struct ieee80211_sub_if_data *sdata; 1772 struct mesh_path *mpath; 1773 1774 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1775 1776 rcu_read_lock(); 1777 mpath = mesh_path_lookup(sdata, dst); 1778 if (!mpath) { 1779 rcu_read_unlock(); 1780 return -ENOENT; 1781 } 1782 memcpy(dst, mpath->dst, ETH_ALEN); 1783 mpath_set_pinfo(mpath, next_hop, pinfo); 1784 rcu_read_unlock(); 1785 return 0; 1786 } 1787 1788 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1789 int idx, u8 *dst, u8 *next_hop, 1790 struct mpath_info *pinfo) 1791 { 1792 struct ieee80211_sub_if_data *sdata; 1793 struct mesh_path *mpath; 1794 1795 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1796 1797 rcu_read_lock(); 1798 mpath = mesh_path_lookup_by_idx(sdata, idx); 1799 if (!mpath) { 1800 rcu_read_unlock(); 1801 return -ENOENT; 1802 } 1803 memcpy(dst, mpath->dst, ETH_ALEN); 1804 mpath_set_pinfo(mpath, next_hop, pinfo); 1805 rcu_read_unlock(); 1806 return 0; 1807 } 1808 1809 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1810 struct mpath_info *pinfo) 1811 { 1812 memset(pinfo, 0, sizeof(*pinfo)); 1813 memcpy(mpp, mpath->mpp, ETH_ALEN); 1814 1815 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1816 } 1817 1818 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1819 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1820 1821 { 1822 struct ieee80211_sub_if_data *sdata; 1823 struct mesh_path *mpath; 1824 1825 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1826 1827 rcu_read_lock(); 1828 mpath = mpp_path_lookup(sdata, dst); 1829 if (!mpath) { 1830 rcu_read_unlock(); 1831 return -ENOENT; 1832 } 1833 memcpy(dst, mpath->dst, ETH_ALEN); 1834 mpp_set_pinfo(mpath, mpp, pinfo); 1835 rcu_read_unlock(); 1836 return 0; 1837 } 1838 1839 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1840 int idx, u8 *dst, u8 *mpp, 1841 struct mpath_info *pinfo) 1842 { 1843 struct ieee80211_sub_if_data *sdata; 1844 struct mesh_path *mpath; 1845 1846 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1847 1848 rcu_read_lock(); 1849 mpath = mpp_path_lookup_by_idx(sdata, idx); 1850 if (!mpath) { 1851 rcu_read_unlock(); 1852 return -ENOENT; 1853 } 1854 memcpy(dst, mpath->dst, ETH_ALEN); 1855 mpp_set_pinfo(mpath, mpp, pinfo); 1856 rcu_read_unlock(); 1857 return 0; 1858 } 1859 1860 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1861 struct net_device *dev, 1862 struct mesh_config *conf) 1863 { 1864 struct ieee80211_sub_if_data *sdata; 1865 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1866 1867 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1868 return 0; 1869 } 1870 1871 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1872 { 1873 return (mask >> (parm-1)) & 0x1; 1874 } 1875 1876 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1877 const struct mesh_setup *setup) 1878 { 1879 u8 *new_ie; 1880 const u8 *old_ie; 1881 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1882 struct ieee80211_sub_if_data, u.mesh); 1883 1884 /* allocate information elements */ 1885 new_ie = NULL; 1886 old_ie = ifmsh->ie; 1887 1888 if (setup->ie_len) { 1889 new_ie = kmemdup(setup->ie, setup->ie_len, 1890 GFP_KERNEL); 1891 if (!new_ie) 1892 return -ENOMEM; 1893 } 1894 ifmsh->ie_len = setup->ie_len; 1895 ifmsh->ie = new_ie; 1896 kfree(old_ie); 1897 1898 /* now copy the rest of the setup parameters */ 1899 ifmsh->mesh_id_len = setup->mesh_id_len; 1900 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1901 ifmsh->mesh_sp_id = setup->sync_method; 1902 ifmsh->mesh_pp_id = setup->path_sel_proto; 1903 ifmsh->mesh_pm_id = setup->path_metric; 1904 ifmsh->user_mpm = setup->user_mpm; 1905 ifmsh->mesh_auth_id = setup->auth_id; 1906 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1907 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 1908 if (setup->is_authenticated) 1909 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1910 if (setup->is_secure) 1911 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1912 1913 /* mcast rate setting in Mesh Node */ 1914 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1915 sizeof(setup->mcast_rate)); 1916 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1917 1918 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1919 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1920 1921 return 0; 1922 } 1923 1924 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1925 struct net_device *dev, u32 mask, 1926 const struct mesh_config *nconf) 1927 { 1928 struct mesh_config *conf; 1929 struct ieee80211_sub_if_data *sdata; 1930 struct ieee80211_if_mesh *ifmsh; 1931 1932 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1933 ifmsh = &sdata->u.mesh; 1934 1935 /* Set the config options which we are interested in setting */ 1936 conf = &(sdata->u.mesh.mshcfg); 1937 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 1938 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 1939 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 1940 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 1941 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 1942 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 1943 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 1944 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 1945 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 1946 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 1947 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 1948 conf->dot11MeshTTL = nconf->dot11MeshTTL; 1949 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 1950 conf->element_ttl = nconf->element_ttl; 1951 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 1952 if (ifmsh->user_mpm) 1953 return -EBUSY; 1954 conf->auto_open_plinks = nconf->auto_open_plinks; 1955 } 1956 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 1957 conf->dot11MeshNbrOffsetMaxNeighbor = 1958 nconf->dot11MeshNbrOffsetMaxNeighbor; 1959 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 1960 conf->dot11MeshHWMPmaxPREQretries = 1961 nconf->dot11MeshHWMPmaxPREQretries; 1962 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 1963 conf->path_refresh_time = nconf->path_refresh_time; 1964 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 1965 conf->min_discovery_timeout = nconf->min_discovery_timeout; 1966 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 1967 conf->dot11MeshHWMPactivePathTimeout = 1968 nconf->dot11MeshHWMPactivePathTimeout; 1969 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 1970 conf->dot11MeshHWMPpreqMinInterval = 1971 nconf->dot11MeshHWMPpreqMinInterval; 1972 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 1973 conf->dot11MeshHWMPperrMinInterval = 1974 nconf->dot11MeshHWMPperrMinInterval; 1975 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 1976 mask)) 1977 conf->dot11MeshHWMPnetDiameterTraversalTime = 1978 nconf->dot11MeshHWMPnetDiameterTraversalTime; 1979 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 1980 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 1981 ieee80211_mesh_root_setup(ifmsh); 1982 } 1983 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 1984 /* our current gate announcement implementation rides on root 1985 * announcements, so require this ifmsh to also be a root node 1986 * */ 1987 if (nconf->dot11MeshGateAnnouncementProtocol && 1988 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 1989 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 1990 ieee80211_mesh_root_setup(ifmsh); 1991 } 1992 conf->dot11MeshGateAnnouncementProtocol = 1993 nconf->dot11MeshGateAnnouncementProtocol; 1994 } 1995 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 1996 conf->dot11MeshHWMPRannInterval = 1997 nconf->dot11MeshHWMPRannInterval; 1998 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 1999 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2000 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2001 /* our RSSI threshold implementation is supported only for 2002 * devices that report signal in dBm. 2003 */ 2004 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2005 return -ENOTSUPP; 2006 conf->rssi_threshold = nconf->rssi_threshold; 2007 } 2008 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2009 conf->ht_opmode = nconf->ht_opmode; 2010 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2011 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2012 } 2013 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2014 conf->dot11MeshHWMPactivePathToRootTimeout = 2015 nconf->dot11MeshHWMPactivePathToRootTimeout; 2016 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2017 conf->dot11MeshHWMProotInterval = 2018 nconf->dot11MeshHWMProotInterval; 2019 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2020 conf->dot11MeshHWMPconfirmationInterval = 2021 nconf->dot11MeshHWMPconfirmationInterval; 2022 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2023 conf->power_mode = nconf->power_mode; 2024 ieee80211_mps_local_status_update(sdata); 2025 } 2026 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2027 conf->dot11MeshAwakeWindowDuration = 2028 nconf->dot11MeshAwakeWindowDuration; 2029 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2030 conf->plink_timeout = nconf->plink_timeout; 2031 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2032 conf->dot11MeshConnectedToMeshGate = 2033 nconf->dot11MeshConnectedToMeshGate; 2034 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2035 return 0; 2036 } 2037 2038 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2039 const struct mesh_config *conf, 2040 const struct mesh_setup *setup) 2041 { 2042 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2043 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2044 int err; 2045 2046 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2047 err = copy_mesh_setup(ifmsh, setup); 2048 if (err) 2049 return err; 2050 2051 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2052 2053 /* can mesh use other SMPS modes? */ 2054 sdata->smps_mode = IEEE80211_SMPS_OFF; 2055 sdata->needed_rx_chains = sdata->local->rx_chains; 2056 2057 mutex_lock(&sdata->local->mtx); 2058 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2059 IEEE80211_CHANCTX_SHARED); 2060 mutex_unlock(&sdata->local->mtx); 2061 if (err) 2062 return err; 2063 2064 return ieee80211_start_mesh(sdata); 2065 } 2066 2067 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2068 { 2069 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2070 2071 ieee80211_stop_mesh(sdata); 2072 mutex_lock(&sdata->local->mtx); 2073 ieee80211_vif_release_channel(sdata); 2074 mutex_unlock(&sdata->local->mtx); 2075 2076 return 0; 2077 } 2078 #endif 2079 2080 static int ieee80211_change_bss(struct wiphy *wiphy, 2081 struct net_device *dev, 2082 struct bss_parameters *params) 2083 { 2084 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2085 struct ieee80211_supported_band *sband; 2086 u32 changed = 0; 2087 2088 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2089 return -ENOENT; 2090 2091 sband = ieee80211_get_sband(sdata); 2092 if (!sband) 2093 return -EINVAL; 2094 2095 if (params->use_cts_prot >= 0) { 2096 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2097 changed |= BSS_CHANGED_ERP_CTS_PROT; 2098 } 2099 if (params->use_short_preamble >= 0) { 2100 sdata->vif.bss_conf.use_short_preamble = 2101 params->use_short_preamble; 2102 changed |= BSS_CHANGED_ERP_PREAMBLE; 2103 } 2104 2105 if (!sdata->vif.bss_conf.use_short_slot && 2106 sband->band == NL80211_BAND_5GHZ) { 2107 sdata->vif.bss_conf.use_short_slot = true; 2108 changed |= BSS_CHANGED_ERP_SLOT; 2109 } 2110 2111 if (params->use_short_slot_time >= 0) { 2112 sdata->vif.bss_conf.use_short_slot = 2113 params->use_short_slot_time; 2114 changed |= BSS_CHANGED_ERP_SLOT; 2115 } 2116 2117 if (params->basic_rates) { 2118 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2119 wiphy->bands[sband->band], 2120 params->basic_rates, 2121 params->basic_rates_len, 2122 &sdata->vif.bss_conf.basic_rates); 2123 changed |= BSS_CHANGED_BASIC_RATES; 2124 ieee80211_check_rate_mask(sdata); 2125 } 2126 2127 if (params->ap_isolate >= 0) { 2128 if (params->ap_isolate) 2129 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2130 else 2131 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2132 ieee80211_check_fast_rx_iface(sdata); 2133 } 2134 2135 if (params->ht_opmode >= 0) { 2136 sdata->vif.bss_conf.ht_operation_mode = 2137 (u16) params->ht_opmode; 2138 changed |= BSS_CHANGED_HT; 2139 } 2140 2141 if (params->p2p_ctwindow >= 0) { 2142 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2143 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2144 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2145 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2146 changed |= BSS_CHANGED_P2P_PS; 2147 } 2148 2149 if (params->p2p_opp_ps > 0) { 2150 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2151 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2152 changed |= BSS_CHANGED_P2P_PS; 2153 } else if (params->p2p_opp_ps == 0) { 2154 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2155 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2156 changed |= BSS_CHANGED_P2P_PS; 2157 } 2158 2159 ieee80211_bss_info_change_notify(sdata, changed); 2160 2161 return 0; 2162 } 2163 2164 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2165 struct net_device *dev, 2166 struct ieee80211_txq_params *params) 2167 { 2168 struct ieee80211_local *local = wiphy_priv(wiphy); 2169 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2170 struct ieee80211_tx_queue_params p; 2171 2172 if (!local->ops->conf_tx) 2173 return -EOPNOTSUPP; 2174 2175 if (local->hw.queues < IEEE80211_NUM_ACS) 2176 return -EOPNOTSUPP; 2177 2178 memset(&p, 0, sizeof(p)); 2179 p.aifs = params->aifs; 2180 p.cw_max = params->cwmax; 2181 p.cw_min = params->cwmin; 2182 p.txop = params->txop; 2183 2184 /* 2185 * Setting tx queue params disables u-apsd because it's only 2186 * called in master mode. 2187 */ 2188 p.uapsd = false; 2189 2190 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2191 2192 sdata->tx_conf[params->ac] = p; 2193 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2194 wiphy_debug(local->hw.wiphy, 2195 "failed to set TX queue parameters for AC %d\n", 2196 params->ac); 2197 return -EINVAL; 2198 } 2199 2200 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2201 2202 return 0; 2203 } 2204 2205 #ifdef CONFIG_PM 2206 static int ieee80211_suspend(struct wiphy *wiphy, 2207 struct cfg80211_wowlan *wowlan) 2208 { 2209 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2210 } 2211 2212 static int ieee80211_resume(struct wiphy *wiphy) 2213 { 2214 return __ieee80211_resume(wiphy_priv(wiphy)); 2215 } 2216 #else 2217 #define ieee80211_suspend NULL 2218 #define ieee80211_resume NULL 2219 #endif 2220 2221 static int ieee80211_scan(struct wiphy *wiphy, 2222 struct cfg80211_scan_request *req) 2223 { 2224 struct ieee80211_sub_if_data *sdata; 2225 2226 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2227 2228 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2229 case NL80211_IFTYPE_STATION: 2230 case NL80211_IFTYPE_ADHOC: 2231 case NL80211_IFTYPE_MESH_POINT: 2232 case NL80211_IFTYPE_P2P_CLIENT: 2233 case NL80211_IFTYPE_P2P_DEVICE: 2234 break; 2235 case NL80211_IFTYPE_P2P_GO: 2236 if (sdata->local->ops->hw_scan) 2237 break; 2238 /* 2239 * FIXME: implement NoA while scanning in software, 2240 * for now fall through to allow scanning only when 2241 * beaconing hasn't been configured yet 2242 */ 2243 /* fall through */ 2244 case NL80211_IFTYPE_AP: 2245 /* 2246 * If the scan has been forced (and the driver supports 2247 * forcing), don't care about being beaconing already. 2248 * This will create problems to the attached stations (e.g. all 2249 * the frames sent while scanning on other channel will be 2250 * lost) 2251 */ 2252 if (sdata->u.ap.beacon && 2253 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2254 !(req->flags & NL80211_SCAN_FLAG_AP))) 2255 return -EOPNOTSUPP; 2256 break; 2257 case NL80211_IFTYPE_NAN: 2258 default: 2259 return -EOPNOTSUPP; 2260 } 2261 2262 return ieee80211_request_scan(sdata, req); 2263 } 2264 2265 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2266 { 2267 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2268 } 2269 2270 static int 2271 ieee80211_sched_scan_start(struct wiphy *wiphy, 2272 struct net_device *dev, 2273 struct cfg80211_sched_scan_request *req) 2274 { 2275 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2276 2277 if (!sdata->local->ops->sched_scan_start) 2278 return -EOPNOTSUPP; 2279 2280 return ieee80211_request_sched_scan_start(sdata, req); 2281 } 2282 2283 static int 2284 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2285 u64 reqid) 2286 { 2287 struct ieee80211_local *local = wiphy_priv(wiphy); 2288 2289 if (!local->ops->sched_scan_stop) 2290 return -EOPNOTSUPP; 2291 2292 return ieee80211_request_sched_scan_stop(local); 2293 } 2294 2295 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2296 struct cfg80211_auth_request *req) 2297 { 2298 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2299 } 2300 2301 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2302 struct cfg80211_assoc_request *req) 2303 { 2304 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2305 } 2306 2307 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2308 struct cfg80211_deauth_request *req) 2309 { 2310 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2311 } 2312 2313 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2314 struct cfg80211_disassoc_request *req) 2315 { 2316 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2317 } 2318 2319 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2320 struct cfg80211_ibss_params *params) 2321 { 2322 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2323 } 2324 2325 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2326 { 2327 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2328 } 2329 2330 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2331 struct ocb_setup *setup) 2332 { 2333 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2334 } 2335 2336 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2337 { 2338 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2339 } 2340 2341 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2342 int rate[NUM_NL80211_BANDS]) 2343 { 2344 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2345 2346 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2347 sizeof(int) * NUM_NL80211_BANDS); 2348 2349 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2350 2351 return 0; 2352 } 2353 2354 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2355 { 2356 struct ieee80211_local *local = wiphy_priv(wiphy); 2357 int err; 2358 2359 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2360 ieee80211_check_fast_xmit_all(local); 2361 2362 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2363 2364 if (err) { 2365 ieee80211_check_fast_xmit_all(local); 2366 return err; 2367 } 2368 } 2369 2370 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2371 (changed & WIPHY_PARAM_DYN_ACK)) { 2372 s16 coverage_class; 2373 2374 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2375 wiphy->coverage_class : -1; 2376 err = drv_set_coverage_class(local, coverage_class); 2377 2378 if (err) 2379 return err; 2380 } 2381 2382 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2383 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2384 2385 if (err) 2386 return err; 2387 } 2388 2389 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2390 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2391 return -EINVAL; 2392 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2393 } 2394 if (changed & WIPHY_PARAM_RETRY_LONG) { 2395 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2396 return -EINVAL; 2397 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2398 } 2399 if (changed & 2400 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2401 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2402 2403 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2404 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2405 WIPHY_PARAM_TXQ_QUANTUM)) 2406 ieee80211_txq_set_params(local); 2407 2408 return 0; 2409 } 2410 2411 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2412 struct wireless_dev *wdev, 2413 enum nl80211_tx_power_setting type, int mbm) 2414 { 2415 struct ieee80211_local *local = wiphy_priv(wiphy); 2416 struct ieee80211_sub_if_data *sdata; 2417 enum nl80211_tx_power_setting txp_type = type; 2418 bool update_txp_type = false; 2419 bool has_monitor = false; 2420 2421 if (wdev) { 2422 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2423 2424 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2425 sdata = rtnl_dereference(local->monitor_sdata); 2426 if (!sdata) 2427 return -EOPNOTSUPP; 2428 } 2429 2430 switch (type) { 2431 case NL80211_TX_POWER_AUTOMATIC: 2432 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2433 txp_type = NL80211_TX_POWER_LIMITED; 2434 break; 2435 case NL80211_TX_POWER_LIMITED: 2436 case NL80211_TX_POWER_FIXED: 2437 if (mbm < 0 || (mbm % 100)) 2438 return -EOPNOTSUPP; 2439 sdata->user_power_level = MBM_TO_DBM(mbm); 2440 break; 2441 } 2442 2443 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2444 update_txp_type = true; 2445 sdata->vif.bss_conf.txpower_type = txp_type; 2446 } 2447 2448 ieee80211_recalc_txpower(sdata, update_txp_type); 2449 2450 return 0; 2451 } 2452 2453 switch (type) { 2454 case NL80211_TX_POWER_AUTOMATIC: 2455 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2456 txp_type = NL80211_TX_POWER_LIMITED; 2457 break; 2458 case NL80211_TX_POWER_LIMITED: 2459 case NL80211_TX_POWER_FIXED: 2460 if (mbm < 0 || (mbm % 100)) 2461 return -EOPNOTSUPP; 2462 local->user_power_level = MBM_TO_DBM(mbm); 2463 break; 2464 } 2465 2466 mutex_lock(&local->iflist_mtx); 2467 list_for_each_entry(sdata, &local->interfaces, list) { 2468 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2469 has_monitor = true; 2470 continue; 2471 } 2472 sdata->user_power_level = local->user_power_level; 2473 if (txp_type != sdata->vif.bss_conf.txpower_type) 2474 update_txp_type = true; 2475 sdata->vif.bss_conf.txpower_type = txp_type; 2476 } 2477 list_for_each_entry(sdata, &local->interfaces, list) { 2478 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2479 continue; 2480 ieee80211_recalc_txpower(sdata, update_txp_type); 2481 } 2482 mutex_unlock(&local->iflist_mtx); 2483 2484 if (has_monitor) { 2485 sdata = rtnl_dereference(local->monitor_sdata); 2486 if (sdata) { 2487 sdata->user_power_level = local->user_power_level; 2488 if (txp_type != sdata->vif.bss_conf.txpower_type) 2489 update_txp_type = true; 2490 sdata->vif.bss_conf.txpower_type = txp_type; 2491 2492 ieee80211_recalc_txpower(sdata, update_txp_type); 2493 } 2494 } 2495 2496 return 0; 2497 } 2498 2499 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2500 struct wireless_dev *wdev, 2501 int *dbm) 2502 { 2503 struct ieee80211_local *local = wiphy_priv(wiphy); 2504 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2505 2506 if (local->ops->get_txpower) 2507 return drv_get_txpower(local, sdata, dbm); 2508 2509 if (!local->use_chanctx) 2510 *dbm = local->hw.conf.power_level; 2511 else 2512 *dbm = sdata->vif.bss_conf.txpower; 2513 2514 return 0; 2515 } 2516 2517 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2518 const u8 *addr) 2519 { 2520 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2521 2522 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2523 2524 return 0; 2525 } 2526 2527 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2528 { 2529 struct ieee80211_local *local = wiphy_priv(wiphy); 2530 2531 drv_rfkill_poll(local); 2532 } 2533 2534 #ifdef CONFIG_NL80211_TESTMODE 2535 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2536 struct wireless_dev *wdev, 2537 void *data, int len) 2538 { 2539 struct ieee80211_local *local = wiphy_priv(wiphy); 2540 struct ieee80211_vif *vif = NULL; 2541 2542 if (!local->ops->testmode_cmd) 2543 return -EOPNOTSUPP; 2544 2545 if (wdev) { 2546 struct ieee80211_sub_if_data *sdata; 2547 2548 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2549 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2550 vif = &sdata->vif; 2551 } 2552 2553 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2554 } 2555 2556 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2557 struct sk_buff *skb, 2558 struct netlink_callback *cb, 2559 void *data, int len) 2560 { 2561 struct ieee80211_local *local = wiphy_priv(wiphy); 2562 2563 if (!local->ops->testmode_dump) 2564 return -EOPNOTSUPP; 2565 2566 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2567 } 2568 #endif 2569 2570 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, 2571 enum ieee80211_smps_mode smps_mode) 2572 { 2573 struct sta_info *sta; 2574 enum ieee80211_smps_mode old_req; 2575 2576 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) 2577 return -EINVAL; 2578 2579 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2580 return 0; 2581 2582 old_req = sdata->u.ap.req_smps; 2583 sdata->u.ap.req_smps = smps_mode; 2584 2585 /* AUTOMATIC doesn't mean much for AP - don't allow it */ 2586 if (old_req == smps_mode || 2587 smps_mode == IEEE80211_SMPS_AUTOMATIC) 2588 return 0; 2589 2590 ht_dbg(sdata, 2591 "SMPS %d requested in AP mode, sending Action frame to %d stations\n", 2592 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); 2593 2594 mutex_lock(&sdata->local->sta_mtx); 2595 list_for_each_entry(sta, &sdata->local->sta_list, list) { 2596 /* 2597 * Only stations associated to our AP and 2598 * associated VLANs 2599 */ 2600 if (sta->sdata->bss != &sdata->u.ap) 2601 continue; 2602 2603 /* This station doesn't support MIMO - skip it */ 2604 if (sta_info_tx_streams(sta) == 1) 2605 continue; 2606 2607 /* 2608 * Don't wake up a STA just to send the action frame 2609 * unless we are getting more restrictive. 2610 */ 2611 if (test_sta_flag(sta, WLAN_STA_PS_STA) && 2612 !ieee80211_smps_is_restrictive(sta->known_smps_mode, 2613 smps_mode)) { 2614 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n", 2615 sta->sta.addr); 2616 continue; 2617 } 2618 2619 /* 2620 * If the STA is not authorized, wait until it gets 2621 * authorized and the action frame will be sent then. 2622 */ 2623 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2624 continue; 2625 2626 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); 2627 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr, 2628 sdata->vif.bss_conf.bssid); 2629 } 2630 mutex_unlock(&sdata->local->sta_mtx); 2631 2632 sdata->smps_mode = smps_mode; 2633 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2634 2635 return 0; 2636 } 2637 2638 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2639 enum ieee80211_smps_mode smps_mode) 2640 { 2641 const u8 *ap; 2642 enum ieee80211_smps_mode old_req; 2643 int err; 2644 struct sta_info *sta; 2645 bool tdls_peer_found = false; 2646 2647 lockdep_assert_held(&sdata->wdev.mtx); 2648 2649 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2650 return -EINVAL; 2651 2652 old_req = sdata->u.mgd.req_smps; 2653 sdata->u.mgd.req_smps = smps_mode; 2654 2655 if (old_req == smps_mode && 2656 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2657 return 0; 2658 2659 /* 2660 * If not associated, or current association is not an HT 2661 * association, there's no need to do anything, just store 2662 * the new value until we associate. 2663 */ 2664 if (!sdata->u.mgd.associated || 2665 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2666 return 0; 2667 2668 ap = sdata->u.mgd.associated->bssid; 2669 2670 rcu_read_lock(); 2671 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2672 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2673 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2674 continue; 2675 2676 tdls_peer_found = true; 2677 break; 2678 } 2679 rcu_read_unlock(); 2680 2681 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2682 if (tdls_peer_found || !sdata->u.mgd.powersave) 2683 smps_mode = IEEE80211_SMPS_OFF; 2684 else 2685 smps_mode = IEEE80211_SMPS_DYNAMIC; 2686 } 2687 2688 /* send SM PS frame to AP */ 2689 err = ieee80211_send_smps_action(sdata, smps_mode, 2690 ap, ap); 2691 if (err) 2692 sdata->u.mgd.req_smps = old_req; 2693 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2694 ieee80211_teardown_tdls_peers(sdata); 2695 2696 return err; 2697 } 2698 2699 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2700 bool enabled, int timeout) 2701 { 2702 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2703 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2704 2705 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2706 return -EOPNOTSUPP; 2707 2708 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2709 return -EOPNOTSUPP; 2710 2711 if (enabled == sdata->u.mgd.powersave && 2712 timeout == local->dynamic_ps_forced_timeout) 2713 return 0; 2714 2715 sdata->u.mgd.powersave = enabled; 2716 local->dynamic_ps_forced_timeout = timeout; 2717 2718 /* no change, but if automatic follow powersave */ 2719 sdata_lock(sdata); 2720 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2721 sdata_unlock(sdata); 2722 2723 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2724 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2725 2726 ieee80211_recalc_ps(local); 2727 ieee80211_recalc_ps_vif(sdata); 2728 ieee80211_check_fast_rx_iface(sdata); 2729 2730 return 0; 2731 } 2732 2733 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2734 struct net_device *dev, 2735 s32 rssi_thold, u32 rssi_hyst) 2736 { 2737 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2738 struct ieee80211_vif *vif = &sdata->vif; 2739 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2740 2741 if (rssi_thold == bss_conf->cqm_rssi_thold && 2742 rssi_hyst == bss_conf->cqm_rssi_hyst) 2743 return 0; 2744 2745 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2746 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2747 return -EOPNOTSUPP; 2748 2749 bss_conf->cqm_rssi_thold = rssi_thold; 2750 bss_conf->cqm_rssi_hyst = rssi_hyst; 2751 bss_conf->cqm_rssi_low = 0; 2752 bss_conf->cqm_rssi_high = 0; 2753 sdata->u.mgd.last_cqm_event_signal = 0; 2754 2755 /* tell the driver upon association, unless already associated */ 2756 if (sdata->u.mgd.associated && 2757 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2758 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2759 2760 return 0; 2761 } 2762 2763 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2764 struct net_device *dev, 2765 s32 rssi_low, s32 rssi_high) 2766 { 2767 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2768 struct ieee80211_vif *vif = &sdata->vif; 2769 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2770 2771 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2772 return -EOPNOTSUPP; 2773 2774 bss_conf->cqm_rssi_low = rssi_low; 2775 bss_conf->cqm_rssi_high = rssi_high; 2776 bss_conf->cqm_rssi_thold = 0; 2777 bss_conf->cqm_rssi_hyst = 0; 2778 sdata->u.mgd.last_cqm_event_signal = 0; 2779 2780 /* tell the driver upon association, unless already associated */ 2781 if (sdata->u.mgd.associated && 2782 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2783 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2784 2785 return 0; 2786 } 2787 2788 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2789 struct net_device *dev, 2790 const u8 *addr, 2791 const struct cfg80211_bitrate_mask *mask) 2792 { 2793 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2794 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2795 int i, ret; 2796 2797 if (!ieee80211_sdata_running(sdata)) 2798 return -ENETDOWN; 2799 2800 /* 2801 * If active validate the setting and reject it if it doesn't leave 2802 * at least one basic rate usable, since we really have to be able 2803 * to send something, and if we're an AP we have to be able to do 2804 * so at a basic rate so that all clients can receive it. 2805 */ 2806 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2807 sdata->vif.bss_conf.chandef.chan) { 2808 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2809 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2810 2811 if (!(mask->control[band].legacy & basic_rates)) 2812 return -EINVAL; 2813 } 2814 2815 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2816 ret = drv_set_bitrate_mask(local, sdata, mask); 2817 if (ret) 2818 return ret; 2819 } 2820 2821 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2822 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2823 int j; 2824 2825 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2826 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2827 sizeof(mask->control[i].ht_mcs)); 2828 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2829 mask->control[i].vht_mcs, 2830 sizeof(mask->control[i].vht_mcs)); 2831 2832 sdata->rc_has_mcs_mask[i] = false; 2833 sdata->rc_has_vht_mcs_mask[i] = false; 2834 if (!sband) 2835 continue; 2836 2837 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2838 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2839 sdata->rc_has_mcs_mask[i] = true; 2840 break; 2841 } 2842 } 2843 2844 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2845 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2846 sdata->rc_has_vht_mcs_mask[i] = true; 2847 break; 2848 } 2849 } 2850 } 2851 2852 return 0; 2853 } 2854 2855 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2856 struct net_device *dev, 2857 struct cfg80211_chan_def *chandef, 2858 u32 cac_time_ms) 2859 { 2860 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2861 struct ieee80211_local *local = sdata->local; 2862 int err; 2863 2864 mutex_lock(&local->mtx); 2865 if (!list_empty(&local->roc_list) || local->scanning) { 2866 err = -EBUSY; 2867 goto out_unlock; 2868 } 2869 2870 /* whatever, but channel contexts should not complain about that one */ 2871 sdata->smps_mode = IEEE80211_SMPS_OFF; 2872 sdata->needed_rx_chains = local->rx_chains; 2873 2874 err = ieee80211_vif_use_channel(sdata, chandef, 2875 IEEE80211_CHANCTX_SHARED); 2876 if (err) 2877 goto out_unlock; 2878 2879 ieee80211_queue_delayed_work(&sdata->local->hw, 2880 &sdata->dfs_cac_timer_work, 2881 msecs_to_jiffies(cac_time_ms)); 2882 2883 out_unlock: 2884 mutex_unlock(&local->mtx); 2885 return err; 2886 } 2887 2888 static struct cfg80211_beacon_data * 2889 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2890 { 2891 struct cfg80211_beacon_data *new_beacon; 2892 u8 *pos; 2893 int len; 2894 2895 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2896 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2897 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 2898 2899 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2900 if (!new_beacon) 2901 return NULL; 2902 2903 pos = (u8 *)(new_beacon + 1); 2904 if (beacon->head_len) { 2905 new_beacon->head_len = beacon->head_len; 2906 new_beacon->head = pos; 2907 memcpy(pos, beacon->head, beacon->head_len); 2908 pos += beacon->head_len; 2909 } 2910 if (beacon->tail_len) { 2911 new_beacon->tail_len = beacon->tail_len; 2912 new_beacon->tail = pos; 2913 memcpy(pos, beacon->tail, beacon->tail_len); 2914 pos += beacon->tail_len; 2915 } 2916 if (beacon->beacon_ies_len) { 2917 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2918 new_beacon->beacon_ies = pos; 2919 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2920 pos += beacon->beacon_ies_len; 2921 } 2922 if (beacon->proberesp_ies_len) { 2923 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2924 new_beacon->proberesp_ies = pos; 2925 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2926 pos += beacon->proberesp_ies_len; 2927 } 2928 if (beacon->assocresp_ies_len) { 2929 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2930 new_beacon->assocresp_ies = pos; 2931 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2932 pos += beacon->assocresp_ies_len; 2933 } 2934 if (beacon->probe_resp_len) { 2935 new_beacon->probe_resp_len = beacon->probe_resp_len; 2936 new_beacon->probe_resp = pos; 2937 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 2938 pos += beacon->probe_resp_len; 2939 } 2940 2941 /* might copy -1, meaning no changes requested */ 2942 new_beacon->ftm_responder = beacon->ftm_responder; 2943 if (beacon->lci) { 2944 new_beacon->lci_len = beacon->lci_len; 2945 new_beacon->lci = pos; 2946 memcpy(pos, beacon->lci, beacon->lci_len); 2947 pos += beacon->lci_len; 2948 } 2949 if (beacon->civicloc) { 2950 new_beacon->civicloc_len = beacon->civicloc_len; 2951 new_beacon->civicloc = pos; 2952 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 2953 pos += beacon->civicloc_len; 2954 } 2955 2956 return new_beacon; 2957 } 2958 2959 void ieee80211_csa_finish(struct ieee80211_vif *vif) 2960 { 2961 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2962 2963 ieee80211_queue_work(&sdata->local->hw, 2964 &sdata->csa_finalize_work); 2965 } 2966 EXPORT_SYMBOL(ieee80211_csa_finish); 2967 2968 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 2969 u32 *changed) 2970 { 2971 int err; 2972 2973 switch (sdata->vif.type) { 2974 case NL80211_IFTYPE_AP: 2975 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 2976 NULL); 2977 kfree(sdata->u.ap.next_beacon); 2978 sdata->u.ap.next_beacon = NULL; 2979 2980 if (err < 0) 2981 return err; 2982 *changed |= err; 2983 break; 2984 case NL80211_IFTYPE_ADHOC: 2985 err = ieee80211_ibss_finish_csa(sdata); 2986 if (err < 0) 2987 return err; 2988 *changed |= err; 2989 break; 2990 #ifdef CONFIG_MAC80211_MESH 2991 case NL80211_IFTYPE_MESH_POINT: 2992 err = ieee80211_mesh_finish_csa(sdata); 2993 if (err < 0) 2994 return err; 2995 *changed |= err; 2996 break; 2997 #endif 2998 default: 2999 WARN_ON(1); 3000 return -EINVAL; 3001 } 3002 3003 return 0; 3004 } 3005 3006 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3007 { 3008 struct ieee80211_local *local = sdata->local; 3009 u32 changed = 0; 3010 int err; 3011 3012 sdata_assert_lock(sdata); 3013 lockdep_assert_held(&local->mtx); 3014 lockdep_assert_held(&local->chanctx_mtx); 3015 3016 /* 3017 * using reservation isn't immediate as it may be deferred until later 3018 * with multi-vif. once reservation is complete it will re-schedule the 3019 * work with no reserved_chanctx so verify chandef to check if it 3020 * completed successfully 3021 */ 3022 3023 if (sdata->reserved_chanctx) { 3024 /* 3025 * with multi-vif csa driver may call ieee80211_csa_finish() 3026 * many times while waiting for other interfaces to use their 3027 * reservations 3028 */ 3029 if (sdata->reserved_ready) 3030 return 0; 3031 3032 return ieee80211_vif_use_reserved_context(sdata); 3033 } 3034 3035 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3036 &sdata->csa_chandef)) 3037 return -EINVAL; 3038 3039 sdata->vif.csa_active = false; 3040 3041 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3042 if (err) 3043 return err; 3044 3045 ieee80211_bss_info_change_notify(sdata, changed); 3046 3047 if (sdata->csa_block_tx) { 3048 ieee80211_wake_vif_queues(local, sdata, 3049 IEEE80211_QUEUE_STOP_REASON_CSA); 3050 sdata->csa_block_tx = false; 3051 } 3052 3053 err = drv_post_channel_switch(sdata); 3054 if (err) 3055 return err; 3056 3057 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3058 3059 return 0; 3060 } 3061 3062 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3063 { 3064 if (__ieee80211_csa_finalize(sdata)) { 3065 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3066 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3067 GFP_KERNEL); 3068 } 3069 } 3070 3071 void ieee80211_csa_finalize_work(struct work_struct *work) 3072 { 3073 struct ieee80211_sub_if_data *sdata = 3074 container_of(work, struct ieee80211_sub_if_data, 3075 csa_finalize_work); 3076 struct ieee80211_local *local = sdata->local; 3077 3078 sdata_lock(sdata); 3079 mutex_lock(&local->mtx); 3080 mutex_lock(&local->chanctx_mtx); 3081 3082 /* AP might have been stopped while waiting for the lock. */ 3083 if (!sdata->vif.csa_active) 3084 goto unlock; 3085 3086 if (!ieee80211_sdata_running(sdata)) 3087 goto unlock; 3088 3089 ieee80211_csa_finalize(sdata); 3090 3091 unlock: 3092 mutex_unlock(&local->chanctx_mtx); 3093 mutex_unlock(&local->mtx); 3094 sdata_unlock(sdata); 3095 } 3096 3097 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3098 struct cfg80211_csa_settings *params, 3099 u32 *changed) 3100 { 3101 struct ieee80211_csa_settings csa = {}; 3102 int err; 3103 3104 switch (sdata->vif.type) { 3105 case NL80211_IFTYPE_AP: 3106 sdata->u.ap.next_beacon = 3107 cfg80211_beacon_dup(¶ms->beacon_after); 3108 if (!sdata->u.ap.next_beacon) 3109 return -ENOMEM; 3110 3111 /* 3112 * With a count of 0, we don't have to wait for any 3113 * TBTT before switching, so complete the CSA 3114 * immediately. In theory, with a count == 1 we 3115 * should delay the switch until just before the next 3116 * TBTT, but that would complicate things so we switch 3117 * immediately too. If we would delay the switch 3118 * until the next TBTT, we would have to set the probe 3119 * response here. 3120 * 3121 * TODO: A channel switch with count <= 1 without 3122 * sending a CSA action frame is kind of useless, 3123 * because the clients won't know we're changing 3124 * channels. The action frame must be implemented 3125 * either here or in the userspace. 3126 */ 3127 if (params->count <= 1) 3128 break; 3129 3130 if ((params->n_counter_offsets_beacon > 3131 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3132 (params->n_counter_offsets_presp > 3133 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3134 return -EINVAL; 3135 3136 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3137 csa.counter_offsets_presp = params->counter_offsets_presp; 3138 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3139 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3140 csa.count = params->count; 3141 3142 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3143 if (err < 0) { 3144 kfree(sdata->u.ap.next_beacon); 3145 return err; 3146 } 3147 *changed |= err; 3148 3149 break; 3150 case NL80211_IFTYPE_ADHOC: 3151 if (!sdata->vif.bss_conf.ibss_joined) 3152 return -EINVAL; 3153 3154 if (params->chandef.width != sdata->u.ibss.chandef.width) 3155 return -EINVAL; 3156 3157 switch (params->chandef.width) { 3158 case NL80211_CHAN_WIDTH_40: 3159 if (cfg80211_get_chandef_type(¶ms->chandef) != 3160 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3161 return -EINVAL; 3162 case NL80211_CHAN_WIDTH_5: 3163 case NL80211_CHAN_WIDTH_10: 3164 case NL80211_CHAN_WIDTH_20_NOHT: 3165 case NL80211_CHAN_WIDTH_20: 3166 break; 3167 default: 3168 return -EINVAL; 3169 } 3170 3171 /* changes into another band are not supported */ 3172 if (sdata->u.ibss.chandef.chan->band != 3173 params->chandef.chan->band) 3174 return -EINVAL; 3175 3176 /* see comments in the NL80211_IFTYPE_AP block */ 3177 if (params->count > 1) { 3178 err = ieee80211_ibss_csa_beacon(sdata, params); 3179 if (err < 0) 3180 return err; 3181 *changed |= err; 3182 } 3183 3184 ieee80211_send_action_csa(sdata, params); 3185 3186 break; 3187 #ifdef CONFIG_MAC80211_MESH 3188 case NL80211_IFTYPE_MESH_POINT: { 3189 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3190 3191 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3192 return -EINVAL; 3193 3194 /* changes into another band are not supported */ 3195 if (sdata->vif.bss_conf.chandef.chan->band != 3196 params->chandef.chan->band) 3197 return -EINVAL; 3198 3199 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3200 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3201 if (!ifmsh->pre_value) 3202 ifmsh->pre_value = 1; 3203 else 3204 ifmsh->pre_value++; 3205 } 3206 3207 /* see comments in the NL80211_IFTYPE_AP block */ 3208 if (params->count > 1) { 3209 err = ieee80211_mesh_csa_beacon(sdata, params); 3210 if (err < 0) { 3211 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3212 return err; 3213 } 3214 *changed |= err; 3215 } 3216 3217 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3218 ieee80211_send_action_csa(sdata, params); 3219 3220 break; 3221 } 3222 #endif 3223 default: 3224 return -EOPNOTSUPP; 3225 } 3226 3227 return 0; 3228 } 3229 3230 static int 3231 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3232 struct cfg80211_csa_settings *params) 3233 { 3234 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3235 struct ieee80211_local *local = sdata->local; 3236 struct ieee80211_channel_switch ch_switch; 3237 struct ieee80211_chanctx_conf *conf; 3238 struct ieee80211_chanctx *chanctx; 3239 u32 changed = 0; 3240 int err; 3241 3242 sdata_assert_lock(sdata); 3243 lockdep_assert_held(&local->mtx); 3244 3245 if (!list_empty(&local->roc_list) || local->scanning) 3246 return -EBUSY; 3247 3248 if (sdata->wdev.cac_started) 3249 return -EBUSY; 3250 3251 if (cfg80211_chandef_identical(¶ms->chandef, 3252 &sdata->vif.bss_conf.chandef)) 3253 return -EINVAL; 3254 3255 /* don't allow another channel switch if one is already active. */ 3256 if (sdata->vif.csa_active) 3257 return -EBUSY; 3258 3259 mutex_lock(&local->chanctx_mtx); 3260 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3261 lockdep_is_held(&local->chanctx_mtx)); 3262 if (!conf) { 3263 err = -EBUSY; 3264 goto out; 3265 } 3266 3267 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3268 3269 ch_switch.timestamp = 0; 3270 ch_switch.device_timestamp = 0; 3271 ch_switch.block_tx = params->block_tx; 3272 ch_switch.chandef = params->chandef; 3273 ch_switch.count = params->count; 3274 3275 err = drv_pre_channel_switch(sdata, &ch_switch); 3276 if (err) 3277 goto out; 3278 3279 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3280 chanctx->mode, 3281 params->radar_required); 3282 if (err) 3283 goto out; 3284 3285 /* if reservation is invalid then this will fail */ 3286 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3287 if (err) { 3288 ieee80211_vif_unreserve_chanctx(sdata); 3289 goto out; 3290 } 3291 3292 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3293 if (err) { 3294 ieee80211_vif_unreserve_chanctx(sdata); 3295 goto out; 3296 } 3297 3298 sdata->csa_chandef = params->chandef; 3299 sdata->csa_block_tx = params->block_tx; 3300 sdata->vif.csa_active = true; 3301 3302 if (sdata->csa_block_tx) 3303 ieee80211_stop_vif_queues(local, sdata, 3304 IEEE80211_QUEUE_STOP_REASON_CSA); 3305 3306 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3307 params->count); 3308 3309 if (changed) { 3310 ieee80211_bss_info_change_notify(sdata, changed); 3311 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3312 } else { 3313 /* if the beacon didn't change, we can finalize immediately */ 3314 ieee80211_csa_finalize(sdata); 3315 } 3316 3317 out: 3318 mutex_unlock(&local->chanctx_mtx); 3319 return err; 3320 } 3321 3322 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3323 struct cfg80211_csa_settings *params) 3324 { 3325 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3326 struct ieee80211_local *local = sdata->local; 3327 int err; 3328 3329 mutex_lock(&local->mtx); 3330 err = __ieee80211_channel_switch(wiphy, dev, params); 3331 mutex_unlock(&local->mtx); 3332 3333 return err; 3334 } 3335 3336 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3337 { 3338 lockdep_assert_held(&local->mtx); 3339 3340 local->roc_cookie_counter++; 3341 3342 /* wow, you wrapped 64 bits ... more likely a bug */ 3343 if (WARN_ON(local->roc_cookie_counter == 0)) 3344 local->roc_cookie_counter++; 3345 3346 return local->roc_cookie_counter; 3347 } 3348 3349 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3350 u64 *cookie, gfp_t gfp) 3351 { 3352 unsigned long spin_flags; 3353 struct sk_buff *ack_skb; 3354 int id; 3355 3356 ack_skb = skb_copy(skb, gfp); 3357 if (!ack_skb) 3358 return -ENOMEM; 3359 3360 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3361 id = idr_alloc(&local->ack_status_frames, ack_skb, 3362 1, 0x10000, GFP_ATOMIC); 3363 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3364 3365 if (id < 0) { 3366 kfree_skb(ack_skb); 3367 return -ENOMEM; 3368 } 3369 3370 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3371 3372 *cookie = ieee80211_mgmt_tx_cookie(local); 3373 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3374 3375 return 0; 3376 } 3377 3378 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3379 struct wireless_dev *wdev, 3380 u16 frame_type, bool reg) 3381 { 3382 struct ieee80211_local *local = wiphy_priv(wiphy); 3383 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3384 3385 switch (frame_type) { 3386 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3387 if (reg) { 3388 local->probe_req_reg++; 3389 sdata->vif.probe_req_reg++; 3390 } else { 3391 if (local->probe_req_reg) 3392 local->probe_req_reg--; 3393 3394 if (sdata->vif.probe_req_reg) 3395 sdata->vif.probe_req_reg--; 3396 } 3397 3398 if (!local->open_count) 3399 break; 3400 3401 if (sdata->vif.probe_req_reg == 1) 3402 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ, 3403 FIF_PROBE_REQ); 3404 else if (sdata->vif.probe_req_reg == 0) 3405 drv_config_iface_filter(local, sdata, 0, 3406 FIF_PROBE_REQ); 3407 3408 ieee80211_configure_filter(local); 3409 break; 3410 default: 3411 break; 3412 } 3413 } 3414 3415 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3416 { 3417 struct ieee80211_local *local = wiphy_priv(wiphy); 3418 3419 if (local->started) 3420 return -EOPNOTSUPP; 3421 3422 return drv_set_antenna(local, tx_ant, rx_ant); 3423 } 3424 3425 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3426 { 3427 struct ieee80211_local *local = wiphy_priv(wiphy); 3428 3429 return drv_get_antenna(local, tx_ant, rx_ant); 3430 } 3431 3432 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3433 struct net_device *dev, 3434 struct cfg80211_gtk_rekey_data *data) 3435 { 3436 struct ieee80211_local *local = wiphy_priv(wiphy); 3437 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3438 3439 if (!local->ops->set_rekey_data) 3440 return -EOPNOTSUPP; 3441 3442 drv_set_rekey_data(local, sdata, data); 3443 3444 return 0; 3445 } 3446 3447 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3448 const u8 *peer, u64 *cookie) 3449 { 3450 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3451 struct ieee80211_local *local = sdata->local; 3452 struct ieee80211_qos_hdr *nullfunc; 3453 struct sk_buff *skb; 3454 int size = sizeof(*nullfunc); 3455 __le16 fc; 3456 bool qos; 3457 struct ieee80211_tx_info *info; 3458 struct sta_info *sta; 3459 struct ieee80211_chanctx_conf *chanctx_conf; 3460 enum nl80211_band band; 3461 int ret; 3462 3463 /* the lock is needed to assign the cookie later */ 3464 mutex_lock(&local->mtx); 3465 3466 rcu_read_lock(); 3467 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3468 if (WARN_ON(!chanctx_conf)) { 3469 ret = -EINVAL; 3470 goto unlock; 3471 } 3472 band = chanctx_conf->def.chan->band; 3473 sta = sta_info_get_bss(sdata, peer); 3474 if (sta) { 3475 qos = sta->sta.wme; 3476 } else { 3477 ret = -ENOLINK; 3478 goto unlock; 3479 } 3480 3481 if (qos) { 3482 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3483 IEEE80211_STYPE_QOS_NULLFUNC | 3484 IEEE80211_FCTL_FROMDS); 3485 } else { 3486 size -= 2; 3487 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3488 IEEE80211_STYPE_NULLFUNC | 3489 IEEE80211_FCTL_FROMDS); 3490 } 3491 3492 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3493 if (!skb) { 3494 ret = -ENOMEM; 3495 goto unlock; 3496 } 3497 3498 skb->dev = dev; 3499 3500 skb_reserve(skb, local->hw.extra_tx_headroom); 3501 3502 nullfunc = skb_put(skb, size); 3503 nullfunc->frame_control = fc; 3504 nullfunc->duration_id = 0; 3505 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3506 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3507 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3508 nullfunc->seq_ctrl = 0; 3509 3510 info = IEEE80211_SKB_CB(skb); 3511 3512 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3513 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3514 info->band = band; 3515 3516 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3517 skb->priority = 7; 3518 if (qos) 3519 nullfunc->qos_ctrl = cpu_to_le16(7); 3520 3521 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3522 if (ret) { 3523 kfree_skb(skb); 3524 goto unlock; 3525 } 3526 3527 local_bh_disable(); 3528 ieee80211_xmit(sdata, sta, skb, 0); 3529 local_bh_enable(); 3530 3531 ret = 0; 3532 unlock: 3533 rcu_read_unlock(); 3534 mutex_unlock(&local->mtx); 3535 3536 return ret; 3537 } 3538 3539 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3540 struct wireless_dev *wdev, 3541 struct cfg80211_chan_def *chandef) 3542 { 3543 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3544 struct ieee80211_local *local = wiphy_priv(wiphy); 3545 struct ieee80211_chanctx_conf *chanctx_conf; 3546 int ret = -ENODATA; 3547 3548 rcu_read_lock(); 3549 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3550 if (chanctx_conf) { 3551 *chandef = sdata->vif.bss_conf.chandef; 3552 ret = 0; 3553 } else if (local->open_count > 0 && 3554 local->open_count == local->monitors && 3555 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3556 if (local->use_chanctx) 3557 *chandef = local->monitor_chandef; 3558 else 3559 *chandef = local->_oper_chandef; 3560 ret = 0; 3561 } 3562 rcu_read_unlock(); 3563 3564 return ret; 3565 } 3566 3567 #ifdef CONFIG_PM 3568 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3569 { 3570 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3571 } 3572 #endif 3573 3574 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3575 struct net_device *dev, 3576 struct cfg80211_qos_map *qos_map) 3577 { 3578 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3579 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3580 3581 if (qos_map) { 3582 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3583 if (!new_qos_map) 3584 return -ENOMEM; 3585 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3586 } else { 3587 /* A NULL qos_map was passed to disable QoS mapping */ 3588 new_qos_map = NULL; 3589 } 3590 3591 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3592 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3593 if (old_qos_map) 3594 kfree_rcu(old_qos_map, rcu_head); 3595 3596 return 0; 3597 } 3598 3599 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3600 struct net_device *dev, 3601 struct cfg80211_chan_def *chandef) 3602 { 3603 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3604 int ret; 3605 u32 changed = 0; 3606 3607 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3608 if (ret == 0) 3609 ieee80211_bss_info_change_notify(sdata, changed); 3610 3611 return ret; 3612 } 3613 3614 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3615 u8 tsid, const u8 *peer, u8 up, 3616 u16 admitted_time) 3617 { 3618 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3619 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3620 int ac = ieee802_1d_to_ac[up]; 3621 3622 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3623 return -EOPNOTSUPP; 3624 3625 if (!(sdata->wmm_acm & BIT(up))) 3626 return -EINVAL; 3627 3628 if (ifmgd->tx_tspec[ac].admitted_time) 3629 return -EBUSY; 3630 3631 if (admitted_time) { 3632 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3633 ifmgd->tx_tspec[ac].tsid = tsid; 3634 ifmgd->tx_tspec[ac].up = up; 3635 } 3636 3637 return 0; 3638 } 3639 3640 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3641 u8 tsid, const u8 *peer) 3642 { 3643 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3644 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3645 struct ieee80211_local *local = wiphy_priv(wiphy); 3646 int ac; 3647 3648 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3649 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3650 3651 /* skip unused entries */ 3652 if (!tx_tspec->admitted_time) 3653 continue; 3654 3655 if (tx_tspec->tsid != tsid) 3656 continue; 3657 3658 /* due to this new packets will be reassigned to non-ACM ACs */ 3659 tx_tspec->up = -1; 3660 3661 /* Make sure that all packets have been sent to avoid to 3662 * restore the QoS params on packets that are still on the 3663 * queues. 3664 */ 3665 synchronize_net(); 3666 ieee80211_flush_queues(local, sdata, false); 3667 3668 /* restore the normal QoS parameters 3669 * (unconditionally to avoid races) 3670 */ 3671 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3672 tx_tspec->downgraded = false; 3673 ieee80211_sta_handle_tspec_ac_params(sdata); 3674 3675 /* finally clear all the data */ 3676 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3677 3678 return 0; 3679 } 3680 3681 return -ENOENT; 3682 } 3683 3684 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3685 u8 inst_id, 3686 enum nl80211_nan_func_term_reason reason, 3687 gfp_t gfp) 3688 { 3689 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3690 struct cfg80211_nan_func *func; 3691 u64 cookie; 3692 3693 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3694 return; 3695 3696 spin_lock_bh(&sdata->u.nan.func_lock); 3697 3698 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3699 if (WARN_ON(!func)) { 3700 spin_unlock_bh(&sdata->u.nan.func_lock); 3701 return; 3702 } 3703 3704 cookie = func->cookie; 3705 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3706 3707 spin_unlock_bh(&sdata->u.nan.func_lock); 3708 3709 cfg80211_free_nan_func(func); 3710 3711 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3712 reason, cookie, gfp); 3713 } 3714 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3715 3716 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3717 struct cfg80211_nan_match_params *match, 3718 gfp_t gfp) 3719 { 3720 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3721 struct cfg80211_nan_func *func; 3722 3723 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3724 return; 3725 3726 spin_lock_bh(&sdata->u.nan.func_lock); 3727 3728 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3729 if (WARN_ON(!func)) { 3730 spin_unlock_bh(&sdata->u.nan.func_lock); 3731 return; 3732 } 3733 match->cookie = func->cookie; 3734 3735 spin_unlock_bh(&sdata->u.nan.func_lock); 3736 3737 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3738 } 3739 EXPORT_SYMBOL(ieee80211_nan_func_match); 3740 3741 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3742 struct net_device *dev, 3743 const bool enabled) 3744 { 3745 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3746 3747 sdata->u.ap.multicast_to_unicast = enabled; 3748 3749 return 0; 3750 } 3751 3752 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 3753 struct txq_info *txqi) 3754 { 3755 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 3756 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 3757 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 3758 } 3759 3760 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 3761 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 3762 txqstats->backlog_packets = txqi->tin.backlog_packets; 3763 } 3764 3765 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 3766 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 3767 txqstats->flows = txqi->tin.flows; 3768 } 3769 3770 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 3771 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 3772 txqstats->drops = txqi->cstats.drop_count; 3773 } 3774 3775 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 3776 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 3777 txqstats->ecn_marks = txqi->cstats.ecn_mark; 3778 } 3779 3780 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 3781 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 3782 txqstats->overlimit = txqi->tin.overlimit; 3783 } 3784 3785 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 3786 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 3787 txqstats->collisions = txqi->tin.collisions; 3788 } 3789 3790 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 3791 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 3792 txqstats->tx_bytes = txqi->tin.tx_bytes; 3793 } 3794 3795 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 3796 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 3797 txqstats->tx_packets = txqi->tin.tx_packets; 3798 } 3799 } 3800 3801 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 3802 struct wireless_dev *wdev, 3803 struct cfg80211_txq_stats *txqstats) 3804 { 3805 struct ieee80211_local *local = wiphy_priv(wiphy); 3806 struct ieee80211_sub_if_data *sdata; 3807 int ret = 0; 3808 3809 if (!local->ops->wake_tx_queue) 3810 return 1; 3811 3812 spin_lock_bh(&local->fq.lock); 3813 rcu_read_lock(); 3814 3815 if (wdev) { 3816 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3817 if (!sdata->vif.txq) { 3818 ret = 1; 3819 goto out; 3820 } 3821 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 3822 } else { 3823 /* phy stats */ 3824 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 3825 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 3826 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 3827 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 3828 BIT(NL80211_TXQ_STATS_COLLISIONS) | 3829 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 3830 txqstats->backlog_packets = local->fq.backlog; 3831 txqstats->backlog_bytes = local->fq.memory_usage; 3832 txqstats->overlimit = local->fq.overlimit; 3833 txqstats->overmemory = local->fq.overmemory; 3834 txqstats->collisions = local->fq.collisions; 3835 txqstats->max_flows = local->fq.flows_cnt; 3836 } 3837 3838 out: 3839 rcu_read_unlock(); 3840 spin_unlock_bh(&local->fq.lock); 3841 3842 return ret; 3843 } 3844 3845 static int 3846 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 3847 struct net_device *dev, 3848 struct cfg80211_ftm_responder_stats *ftm_stats) 3849 { 3850 struct ieee80211_local *local = wiphy_priv(wiphy); 3851 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3852 3853 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 3854 } 3855 3856 static int 3857 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3858 struct cfg80211_pmsr_request *request) 3859 { 3860 struct ieee80211_local *local = wiphy_priv(wiphy); 3861 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3862 3863 return drv_start_pmsr(local, sdata, request); 3864 } 3865 3866 static void 3867 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3868 struct cfg80211_pmsr_request *request) 3869 { 3870 struct ieee80211_local *local = wiphy_priv(wiphy); 3871 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3872 3873 return drv_abort_pmsr(local, sdata, request); 3874 } 3875 3876 const struct cfg80211_ops mac80211_config_ops = { 3877 .add_virtual_intf = ieee80211_add_iface, 3878 .del_virtual_intf = ieee80211_del_iface, 3879 .change_virtual_intf = ieee80211_change_iface, 3880 .start_p2p_device = ieee80211_start_p2p_device, 3881 .stop_p2p_device = ieee80211_stop_p2p_device, 3882 .add_key = ieee80211_add_key, 3883 .del_key = ieee80211_del_key, 3884 .get_key = ieee80211_get_key, 3885 .set_default_key = ieee80211_config_default_key, 3886 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3887 .start_ap = ieee80211_start_ap, 3888 .change_beacon = ieee80211_change_beacon, 3889 .stop_ap = ieee80211_stop_ap, 3890 .add_station = ieee80211_add_station, 3891 .del_station = ieee80211_del_station, 3892 .change_station = ieee80211_change_station, 3893 .get_station = ieee80211_get_station, 3894 .dump_station = ieee80211_dump_station, 3895 .dump_survey = ieee80211_dump_survey, 3896 #ifdef CONFIG_MAC80211_MESH 3897 .add_mpath = ieee80211_add_mpath, 3898 .del_mpath = ieee80211_del_mpath, 3899 .change_mpath = ieee80211_change_mpath, 3900 .get_mpath = ieee80211_get_mpath, 3901 .dump_mpath = ieee80211_dump_mpath, 3902 .get_mpp = ieee80211_get_mpp, 3903 .dump_mpp = ieee80211_dump_mpp, 3904 .update_mesh_config = ieee80211_update_mesh_config, 3905 .get_mesh_config = ieee80211_get_mesh_config, 3906 .join_mesh = ieee80211_join_mesh, 3907 .leave_mesh = ieee80211_leave_mesh, 3908 #endif 3909 .join_ocb = ieee80211_join_ocb, 3910 .leave_ocb = ieee80211_leave_ocb, 3911 .change_bss = ieee80211_change_bss, 3912 .set_txq_params = ieee80211_set_txq_params, 3913 .set_monitor_channel = ieee80211_set_monitor_channel, 3914 .suspend = ieee80211_suspend, 3915 .resume = ieee80211_resume, 3916 .scan = ieee80211_scan, 3917 .abort_scan = ieee80211_abort_scan, 3918 .sched_scan_start = ieee80211_sched_scan_start, 3919 .sched_scan_stop = ieee80211_sched_scan_stop, 3920 .auth = ieee80211_auth, 3921 .assoc = ieee80211_assoc, 3922 .deauth = ieee80211_deauth, 3923 .disassoc = ieee80211_disassoc, 3924 .join_ibss = ieee80211_join_ibss, 3925 .leave_ibss = ieee80211_leave_ibss, 3926 .set_mcast_rate = ieee80211_set_mcast_rate, 3927 .set_wiphy_params = ieee80211_set_wiphy_params, 3928 .set_tx_power = ieee80211_set_tx_power, 3929 .get_tx_power = ieee80211_get_tx_power, 3930 .set_wds_peer = ieee80211_set_wds_peer, 3931 .rfkill_poll = ieee80211_rfkill_poll, 3932 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 3933 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 3934 .set_power_mgmt = ieee80211_set_power_mgmt, 3935 .set_bitrate_mask = ieee80211_set_bitrate_mask, 3936 .remain_on_channel = ieee80211_remain_on_channel, 3937 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 3938 .mgmt_tx = ieee80211_mgmt_tx, 3939 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 3940 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 3941 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 3942 .mgmt_frame_register = ieee80211_mgmt_frame_register, 3943 .set_antenna = ieee80211_set_antenna, 3944 .get_antenna = ieee80211_get_antenna, 3945 .set_rekey_data = ieee80211_set_rekey_data, 3946 .tdls_oper = ieee80211_tdls_oper, 3947 .tdls_mgmt = ieee80211_tdls_mgmt, 3948 .tdls_channel_switch = ieee80211_tdls_channel_switch, 3949 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 3950 .probe_client = ieee80211_probe_client, 3951 .set_noack_map = ieee80211_set_noack_map, 3952 #ifdef CONFIG_PM 3953 .set_wakeup = ieee80211_set_wakeup, 3954 #endif 3955 .get_channel = ieee80211_cfg_get_channel, 3956 .start_radar_detection = ieee80211_start_radar_detection, 3957 .channel_switch = ieee80211_channel_switch, 3958 .set_qos_map = ieee80211_set_qos_map, 3959 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 3960 .add_tx_ts = ieee80211_add_tx_ts, 3961 .del_tx_ts = ieee80211_del_tx_ts, 3962 .start_nan = ieee80211_start_nan, 3963 .stop_nan = ieee80211_stop_nan, 3964 .nan_change_conf = ieee80211_nan_change_conf, 3965 .add_nan_func = ieee80211_add_nan_func, 3966 .del_nan_func = ieee80211_del_nan_func, 3967 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 3968 .tx_control_port = ieee80211_tx_control_port, 3969 .get_txq_stats = ieee80211_get_txq_stats, 3970 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 3971 .start_pmsr = ieee80211_start_pmsr, 3972 .abort_pmsr = ieee80211_abort_pmsr, 3973 }; 3974