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 if (sta->sta.tdls && sdata->vif.type == NL80211_IFTYPE_STATION && 1494 !sdata->u.mgd.associated) 1495 return -EINVAL; 1496 1497 err = sta_apply_parameters(local, sta, params); 1498 if (err) { 1499 sta_info_free(local, sta); 1500 return err; 1501 } 1502 1503 /* 1504 * for TDLS and for unassociated station, rate control should be 1505 * initialized only when rates are known and station is marked 1506 * authorized/associated 1507 */ 1508 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1509 test_sta_flag(sta, WLAN_STA_ASSOC)) 1510 rate_control_rate_init(sta); 1511 1512 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 1513 sdata->vif.type == NL80211_IFTYPE_AP; 1514 1515 err = sta_info_insert_rcu(sta); 1516 if (err) { 1517 rcu_read_unlock(); 1518 return err; 1519 } 1520 1521 if (layer2_update) 1522 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1523 1524 rcu_read_unlock(); 1525 1526 return 0; 1527 } 1528 1529 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1530 struct station_del_parameters *params) 1531 { 1532 struct ieee80211_sub_if_data *sdata; 1533 1534 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1535 1536 if (params->mac) 1537 return sta_info_destroy_addr_bss(sdata, params->mac); 1538 1539 sta_info_flush(sdata); 1540 return 0; 1541 } 1542 1543 static int ieee80211_change_station(struct wiphy *wiphy, 1544 struct net_device *dev, const u8 *mac, 1545 struct station_parameters *params) 1546 { 1547 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1548 struct ieee80211_local *local = wiphy_priv(wiphy); 1549 struct sta_info *sta; 1550 struct ieee80211_sub_if_data *vlansdata; 1551 enum cfg80211_station_type statype; 1552 int err; 1553 1554 mutex_lock(&local->sta_mtx); 1555 1556 sta = sta_info_get_bss(sdata, mac); 1557 if (!sta) { 1558 err = -ENOENT; 1559 goto out_err; 1560 } 1561 1562 switch (sdata->vif.type) { 1563 case NL80211_IFTYPE_MESH_POINT: 1564 if (sdata->u.mesh.user_mpm) 1565 statype = CFG80211_STA_MESH_PEER_USER; 1566 else 1567 statype = CFG80211_STA_MESH_PEER_KERNEL; 1568 break; 1569 case NL80211_IFTYPE_ADHOC: 1570 statype = CFG80211_STA_IBSS; 1571 break; 1572 case NL80211_IFTYPE_STATION: 1573 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1574 statype = CFG80211_STA_AP_STA; 1575 break; 1576 } 1577 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1578 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1579 else 1580 statype = CFG80211_STA_TDLS_PEER_SETUP; 1581 break; 1582 case NL80211_IFTYPE_AP: 1583 case NL80211_IFTYPE_AP_VLAN: 1584 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1585 statype = CFG80211_STA_AP_CLIENT; 1586 else 1587 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1588 break; 1589 default: 1590 err = -EOPNOTSUPP; 1591 goto out_err; 1592 } 1593 1594 err = cfg80211_check_station_change(wiphy, params, statype); 1595 if (err) 1596 goto out_err; 1597 1598 if (params->vlan && params->vlan != sta->sdata->dev) { 1599 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1600 1601 if (params->vlan->ieee80211_ptr->use_4addr) { 1602 if (vlansdata->u.vlan.sta) { 1603 err = -EBUSY; 1604 goto out_err; 1605 } 1606 1607 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1608 __ieee80211_check_fast_rx_iface(vlansdata); 1609 } 1610 1611 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1612 sta->sdata->u.vlan.sta) 1613 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1614 1615 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1616 ieee80211_vif_dec_num_mcast(sta->sdata); 1617 1618 sta->sdata = vlansdata; 1619 ieee80211_check_fast_xmit(sta); 1620 1621 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1622 ieee80211_vif_inc_num_mcast(sta->sdata); 1623 1624 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1625 } 1626 1627 err = sta_apply_parameters(local, sta, params); 1628 if (err) 1629 goto out_err; 1630 1631 mutex_unlock(&local->sta_mtx); 1632 1633 if ((sdata->vif.type == NL80211_IFTYPE_AP || 1634 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && 1635 sta->known_smps_mode != sta->sdata->bss->req_smps && 1636 test_sta_flag(sta, WLAN_STA_AUTHORIZED) && 1637 sta_info_tx_streams(sta) != 1) { 1638 ht_dbg(sta->sdata, 1639 "%pM just authorized and MIMO capable - update SMPS\n", 1640 sta->sta.addr); 1641 ieee80211_send_smps_action(sta->sdata, 1642 sta->sdata->bss->req_smps, 1643 sta->sta.addr, 1644 sta->sdata->vif.bss_conf.bssid); 1645 } 1646 1647 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1648 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1649 ieee80211_recalc_ps(local); 1650 ieee80211_recalc_ps_vif(sdata); 1651 } 1652 1653 return 0; 1654 out_err: 1655 mutex_unlock(&local->sta_mtx); 1656 return err; 1657 } 1658 1659 #ifdef CONFIG_MAC80211_MESH 1660 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1661 const u8 *dst, const u8 *next_hop) 1662 { 1663 struct ieee80211_sub_if_data *sdata; 1664 struct mesh_path *mpath; 1665 struct sta_info *sta; 1666 1667 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1668 1669 rcu_read_lock(); 1670 sta = sta_info_get(sdata, next_hop); 1671 if (!sta) { 1672 rcu_read_unlock(); 1673 return -ENOENT; 1674 } 1675 1676 mpath = mesh_path_add(sdata, dst); 1677 if (IS_ERR(mpath)) { 1678 rcu_read_unlock(); 1679 return PTR_ERR(mpath); 1680 } 1681 1682 mesh_path_fix_nexthop(mpath, sta); 1683 1684 rcu_read_unlock(); 1685 return 0; 1686 } 1687 1688 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1689 const u8 *dst) 1690 { 1691 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1692 1693 if (dst) 1694 return mesh_path_del(sdata, dst); 1695 1696 mesh_path_flush_by_iface(sdata); 1697 return 0; 1698 } 1699 1700 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1701 const u8 *dst, const u8 *next_hop) 1702 { 1703 struct ieee80211_sub_if_data *sdata; 1704 struct mesh_path *mpath; 1705 struct sta_info *sta; 1706 1707 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1708 1709 rcu_read_lock(); 1710 1711 sta = sta_info_get(sdata, next_hop); 1712 if (!sta) { 1713 rcu_read_unlock(); 1714 return -ENOENT; 1715 } 1716 1717 mpath = mesh_path_lookup(sdata, dst); 1718 if (!mpath) { 1719 rcu_read_unlock(); 1720 return -ENOENT; 1721 } 1722 1723 mesh_path_fix_nexthop(mpath, sta); 1724 1725 rcu_read_unlock(); 1726 return 0; 1727 } 1728 1729 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1730 struct mpath_info *pinfo) 1731 { 1732 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1733 1734 if (next_hop_sta) 1735 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1736 else 1737 eth_zero_addr(next_hop); 1738 1739 memset(pinfo, 0, sizeof(*pinfo)); 1740 1741 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1742 1743 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1744 MPATH_INFO_SN | 1745 MPATH_INFO_METRIC | 1746 MPATH_INFO_EXPTIME | 1747 MPATH_INFO_DISCOVERY_TIMEOUT | 1748 MPATH_INFO_DISCOVERY_RETRIES | 1749 MPATH_INFO_FLAGS; 1750 1751 pinfo->frame_qlen = mpath->frame_queue.qlen; 1752 pinfo->sn = mpath->sn; 1753 pinfo->metric = mpath->metric; 1754 if (time_before(jiffies, mpath->exp_time)) 1755 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1756 pinfo->discovery_timeout = 1757 jiffies_to_msecs(mpath->discovery_timeout); 1758 pinfo->discovery_retries = mpath->discovery_retries; 1759 if (mpath->flags & MESH_PATH_ACTIVE) 1760 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1761 if (mpath->flags & MESH_PATH_RESOLVING) 1762 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1763 if (mpath->flags & MESH_PATH_SN_VALID) 1764 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1765 if (mpath->flags & MESH_PATH_FIXED) 1766 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1767 if (mpath->flags & MESH_PATH_RESOLVED) 1768 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1769 } 1770 1771 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1772 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1773 1774 { 1775 struct ieee80211_sub_if_data *sdata; 1776 struct mesh_path *mpath; 1777 1778 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1779 1780 rcu_read_lock(); 1781 mpath = mesh_path_lookup(sdata, dst); 1782 if (!mpath) { 1783 rcu_read_unlock(); 1784 return -ENOENT; 1785 } 1786 memcpy(dst, mpath->dst, ETH_ALEN); 1787 mpath_set_pinfo(mpath, next_hop, pinfo); 1788 rcu_read_unlock(); 1789 return 0; 1790 } 1791 1792 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1793 int idx, u8 *dst, u8 *next_hop, 1794 struct mpath_info *pinfo) 1795 { 1796 struct ieee80211_sub_if_data *sdata; 1797 struct mesh_path *mpath; 1798 1799 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1800 1801 rcu_read_lock(); 1802 mpath = mesh_path_lookup_by_idx(sdata, idx); 1803 if (!mpath) { 1804 rcu_read_unlock(); 1805 return -ENOENT; 1806 } 1807 memcpy(dst, mpath->dst, ETH_ALEN); 1808 mpath_set_pinfo(mpath, next_hop, pinfo); 1809 rcu_read_unlock(); 1810 return 0; 1811 } 1812 1813 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1814 struct mpath_info *pinfo) 1815 { 1816 memset(pinfo, 0, sizeof(*pinfo)); 1817 memcpy(mpp, mpath->mpp, ETH_ALEN); 1818 1819 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1820 } 1821 1822 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1823 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1824 1825 { 1826 struct ieee80211_sub_if_data *sdata; 1827 struct mesh_path *mpath; 1828 1829 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1830 1831 rcu_read_lock(); 1832 mpath = mpp_path_lookup(sdata, dst); 1833 if (!mpath) { 1834 rcu_read_unlock(); 1835 return -ENOENT; 1836 } 1837 memcpy(dst, mpath->dst, ETH_ALEN); 1838 mpp_set_pinfo(mpath, mpp, pinfo); 1839 rcu_read_unlock(); 1840 return 0; 1841 } 1842 1843 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1844 int idx, u8 *dst, u8 *mpp, 1845 struct mpath_info *pinfo) 1846 { 1847 struct ieee80211_sub_if_data *sdata; 1848 struct mesh_path *mpath; 1849 1850 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1851 1852 rcu_read_lock(); 1853 mpath = mpp_path_lookup_by_idx(sdata, idx); 1854 if (!mpath) { 1855 rcu_read_unlock(); 1856 return -ENOENT; 1857 } 1858 memcpy(dst, mpath->dst, ETH_ALEN); 1859 mpp_set_pinfo(mpath, mpp, pinfo); 1860 rcu_read_unlock(); 1861 return 0; 1862 } 1863 1864 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1865 struct net_device *dev, 1866 struct mesh_config *conf) 1867 { 1868 struct ieee80211_sub_if_data *sdata; 1869 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1870 1871 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1872 return 0; 1873 } 1874 1875 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1876 { 1877 return (mask >> (parm-1)) & 0x1; 1878 } 1879 1880 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1881 const struct mesh_setup *setup) 1882 { 1883 u8 *new_ie; 1884 const u8 *old_ie; 1885 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1886 struct ieee80211_sub_if_data, u.mesh); 1887 1888 /* allocate information elements */ 1889 new_ie = NULL; 1890 old_ie = ifmsh->ie; 1891 1892 if (setup->ie_len) { 1893 new_ie = kmemdup(setup->ie, setup->ie_len, 1894 GFP_KERNEL); 1895 if (!new_ie) 1896 return -ENOMEM; 1897 } 1898 ifmsh->ie_len = setup->ie_len; 1899 ifmsh->ie = new_ie; 1900 kfree(old_ie); 1901 1902 /* now copy the rest of the setup parameters */ 1903 ifmsh->mesh_id_len = setup->mesh_id_len; 1904 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1905 ifmsh->mesh_sp_id = setup->sync_method; 1906 ifmsh->mesh_pp_id = setup->path_sel_proto; 1907 ifmsh->mesh_pm_id = setup->path_metric; 1908 ifmsh->user_mpm = setup->user_mpm; 1909 ifmsh->mesh_auth_id = setup->auth_id; 1910 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1911 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 1912 if (setup->is_authenticated) 1913 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1914 if (setup->is_secure) 1915 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1916 1917 /* mcast rate setting in Mesh Node */ 1918 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1919 sizeof(setup->mcast_rate)); 1920 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1921 1922 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1923 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1924 1925 return 0; 1926 } 1927 1928 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1929 struct net_device *dev, u32 mask, 1930 const struct mesh_config *nconf) 1931 { 1932 struct mesh_config *conf; 1933 struct ieee80211_sub_if_data *sdata; 1934 struct ieee80211_if_mesh *ifmsh; 1935 1936 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1937 ifmsh = &sdata->u.mesh; 1938 1939 /* Set the config options which we are interested in setting */ 1940 conf = &(sdata->u.mesh.mshcfg); 1941 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 1942 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 1943 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 1944 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 1945 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 1946 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 1947 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 1948 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 1949 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 1950 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 1951 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 1952 conf->dot11MeshTTL = nconf->dot11MeshTTL; 1953 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 1954 conf->element_ttl = nconf->element_ttl; 1955 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 1956 if (ifmsh->user_mpm) 1957 return -EBUSY; 1958 conf->auto_open_plinks = nconf->auto_open_plinks; 1959 } 1960 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 1961 conf->dot11MeshNbrOffsetMaxNeighbor = 1962 nconf->dot11MeshNbrOffsetMaxNeighbor; 1963 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 1964 conf->dot11MeshHWMPmaxPREQretries = 1965 nconf->dot11MeshHWMPmaxPREQretries; 1966 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 1967 conf->path_refresh_time = nconf->path_refresh_time; 1968 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 1969 conf->min_discovery_timeout = nconf->min_discovery_timeout; 1970 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 1971 conf->dot11MeshHWMPactivePathTimeout = 1972 nconf->dot11MeshHWMPactivePathTimeout; 1973 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 1974 conf->dot11MeshHWMPpreqMinInterval = 1975 nconf->dot11MeshHWMPpreqMinInterval; 1976 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 1977 conf->dot11MeshHWMPperrMinInterval = 1978 nconf->dot11MeshHWMPperrMinInterval; 1979 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 1980 mask)) 1981 conf->dot11MeshHWMPnetDiameterTraversalTime = 1982 nconf->dot11MeshHWMPnetDiameterTraversalTime; 1983 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 1984 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 1985 ieee80211_mesh_root_setup(ifmsh); 1986 } 1987 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 1988 /* our current gate announcement implementation rides on root 1989 * announcements, so require this ifmsh to also be a root node 1990 * */ 1991 if (nconf->dot11MeshGateAnnouncementProtocol && 1992 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 1993 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 1994 ieee80211_mesh_root_setup(ifmsh); 1995 } 1996 conf->dot11MeshGateAnnouncementProtocol = 1997 nconf->dot11MeshGateAnnouncementProtocol; 1998 } 1999 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2000 conf->dot11MeshHWMPRannInterval = 2001 nconf->dot11MeshHWMPRannInterval; 2002 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2003 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2004 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2005 /* our RSSI threshold implementation is supported only for 2006 * devices that report signal in dBm. 2007 */ 2008 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2009 return -ENOTSUPP; 2010 conf->rssi_threshold = nconf->rssi_threshold; 2011 } 2012 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2013 conf->ht_opmode = nconf->ht_opmode; 2014 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2015 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2016 } 2017 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2018 conf->dot11MeshHWMPactivePathToRootTimeout = 2019 nconf->dot11MeshHWMPactivePathToRootTimeout; 2020 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2021 conf->dot11MeshHWMProotInterval = 2022 nconf->dot11MeshHWMProotInterval; 2023 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2024 conf->dot11MeshHWMPconfirmationInterval = 2025 nconf->dot11MeshHWMPconfirmationInterval; 2026 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2027 conf->power_mode = nconf->power_mode; 2028 ieee80211_mps_local_status_update(sdata); 2029 } 2030 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2031 conf->dot11MeshAwakeWindowDuration = 2032 nconf->dot11MeshAwakeWindowDuration; 2033 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2034 conf->plink_timeout = nconf->plink_timeout; 2035 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2036 conf->dot11MeshConnectedToMeshGate = 2037 nconf->dot11MeshConnectedToMeshGate; 2038 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2039 return 0; 2040 } 2041 2042 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2043 const struct mesh_config *conf, 2044 const struct mesh_setup *setup) 2045 { 2046 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2047 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2048 int err; 2049 2050 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2051 err = copy_mesh_setup(ifmsh, setup); 2052 if (err) 2053 return err; 2054 2055 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2056 2057 /* can mesh use other SMPS modes? */ 2058 sdata->smps_mode = IEEE80211_SMPS_OFF; 2059 sdata->needed_rx_chains = sdata->local->rx_chains; 2060 2061 mutex_lock(&sdata->local->mtx); 2062 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2063 IEEE80211_CHANCTX_SHARED); 2064 mutex_unlock(&sdata->local->mtx); 2065 if (err) 2066 return err; 2067 2068 return ieee80211_start_mesh(sdata); 2069 } 2070 2071 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2072 { 2073 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2074 2075 ieee80211_stop_mesh(sdata); 2076 mutex_lock(&sdata->local->mtx); 2077 ieee80211_vif_release_channel(sdata); 2078 mutex_unlock(&sdata->local->mtx); 2079 2080 return 0; 2081 } 2082 #endif 2083 2084 static int ieee80211_change_bss(struct wiphy *wiphy, 2085 struct net_device *dev, 2086 struct bss_parameters *params) 2087 { 2088 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2089 struct ieee80211_supported_band *sband; 2090 u32 changed = 0; 2091 2092 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2093 return -ENOENT; 2094 2095 sband = ieee80211_get_sband(sdata); 2096 if (!sband) 2097 return -EINVAL; 2098 2099 if (params->use_cts_prot >= 0) { 2100 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2101 changed |= BSS_CHANGED_ERP_CTS_PROT; 2102 } 2103 if (params->use_short_preamble >= 0) { 2104 sdata->vif.bss_conf.use_short_preamble = 2105 params->use_short_preamble; 2106 changed |= BSS_CHANGED_ERP_PREAMBLE; 2107 } 2108 2109 if (!sdata->vif.bss_conf.use_short_slot && 2110 sband->band == NL80211_BAND_5GHZ) { 2111 sdata->vif.bss_conf.use_short_slot = true; 2112 changed |= BSS_CHANGED_ERP_SLOT; 2113 } 2114 2115 if (params->use_short_slot_time >= 0) { 2116 sdata->vif.bss_conf.use_short_slot = 2117 params->use_short_slot_time; 2118 changed |= BSS_CHANGED_ERP_SLOT; 2119 } 2120 2121 if (params->basic_rates) { 2122 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2123 wiphy->bands[sband->band], 2124 params->basic_rates, 2125 params->basic_rates_len, 2126 &sdata->vif.bss_conf.basic_rates); 2127 changed |= BSS_CHANGED_BASIC_RATES; 2128 ieee80211_check_rate_mask(sdata); 2129 } 2130 2131 if (params->ap_isolate >= 0) { 2132 if (params->ap_isolate) 2133 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2134 else 2135 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2136 ieee80211_check_fast_rx_iface(sdata); 2137 } 2138 2139 if (params->ht_opmode >= 0) { 2140 sdata->vif.bss_conf.ht_operation_mode = 2141 (u16) params->ht_opmode; 2142 changed |= BSS_CHANGED_HT; 2143 } 2144 2145 if (params->p2p_ctwindow >= 0) { 2146 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2147 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2148 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2149 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2150 changed |= BSS_CHANGED_P2P_PS; 2151 } 2152 2153 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 } else if (params->p2p_opp_ps == 0) { 2158 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2159 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2160 changed |= BSS_CHANGED_P2P_PS; 2161 } 2162 2163 ieee80211_bss_info_change_notify(sdata, changed); 2164 2165 return 0; 2166 } 2167 2168 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2169 struct net_device *dev, 2170 struct ieee80211_txq_params *params) 2171 { 2172 struct ieee80211_local *local = wiphy_priv(wiphy); 2173 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2174 struct ieee80211_tx_queue_params p; 2175 2176 if (!local->ops->conf_tx) 2177 return -EOPNOTSUPP; 2178 2179 if (local->hw.queues < IEEE80211_NUM_ACS) 2180 return -EOPNOTSUPP; 2181 2182 memset(&p, 0, sizeof(p)); 2183 p.aifs = params->aifs; 2184 p.cw_max = params->cwmax; 2185 p.cw_min = params->cwmin; 2186 p.txop = params->txop; 2187 2188 /* 2189 * Setting tx queue params disables u-apsd because it's only 2190 * called in master mode. 2191 */ 2192 p.uapsd = false; 2193 2194 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2195 2196 sdata->tx_conf[params->ac] = p; 2197 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2198 wiphy_debug(local->hw.wiphy, 2199 "failed to set TX queue parameters for AC %d\n", 2200 params->ac); 2201 return -EINVAL; 2202 } 2203 2204 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2205 2206 return 0; 2207 } 2208 2209 #ifdef CONFIG_PM 2210 static int ieee80211_suspend(struct wiphy *wiphy, 2211 struct cfg80211_wowlan *wowlan) 2212 { 2213 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2214 } 2215 2216 static int ieee80211_resume(struct wiphy *wiphy) 2217 { 2218 return __ieee80211_resume(wiphy_priv(wiphy)); 2219 } 2220 #else 2221 #define ieee80211_suspend NULL 2222 #define ieee80211_resume NULL 2223 #endif 2224 2225 static int ieee80211_scan(struct wiphy *wiphy, 2226 struct cfg80211_scan_request *req) 2227 { 2228 struct ieee80211_sub_if_data *sdata; 2229 2230 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2231 2232 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2233 case NL80211_IFTYPE_STATION: 2234 case NL80211_IFTYPE_ADHOC: 2235 case NL80211_IFTYPE_MESH_POINT: 2236 case NL80211_IFTYPE_P2P_CLIENT: 2237 case NL80211_IFTYPE_P2P_DEVICE: 2238 break; 2239 case NL80211_IFTYPE_P2P_GO: 2240 if (sdata->local->ops->hw_scan) 2241 break; 2242 /* 2243 * FIXME: implement NoA while scanning in software, 2244 * for now fall through to allow scanning only when 2245 * beaconing hasn't been configured yet 2246 */ 2247 /* fall through */ 2248 case NL80211_IFTYPE_AP: 2249 /* 2250 * If the scan has been forced (and the driver supports 2251 * forcing), don't care about being beaconing already. 2252 * This will create problems to the attached stations (e.g. all 2253 * the frames sent while scanning on other channel will be 2254 * lost) 2255 */ 2256 if (sdata->u.ap.beacon && 2257 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2258 !(req->flags & NL80211_SCAN_FLAG_AP))) 2259 return -EOPNOTSUPP; 2260 break; 2261 case NL80211_IFTYPE_NAN: 2262 default: 2263 return -EOPNOTSUPP; 2264 } 2265 2266 return ieee80211_request_scan(sdata, req); 2267 } 2268 2269 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2270 { 2271 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2272 } 2273 2274 static int 2275 ieee80211_sched_scan_start(struct wiphy *wiphy, 2276 struct net_device *dev, 2277 struct cfg80211_sched_scan_request *req) 2278 { 2279 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2280 2281 if (!sdata->local->ops->sched_scan_start) 2282 return -EOPNOTSUPP; 2283 2284 return ieee80211_request_sched_scan_start(sdata, req); 2285 } 2286 2287 static int 2288 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2289 u64 reqid) 2290 { 2291 struct ieee80211_local *local = wiphy_priv(wiphy); 2292 2293 if (!local->ops->sched_scan_stop) 2294 return -EOPNOTSUPP; 2295 2296 return ieee80211_request_sched_scan_stop(local); 2297 } 2298 2299 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2300 struct cfg80211_auth_request *req) 2301 { 2302 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2303 } 2304 2305 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2306 struct cfg80211_assoc_request *req) 2307 { 2308 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2309 } 2310 2311 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2312 struct cfg80211_deauth_request *req) 2313 { 2314 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2315 } 2316 2317 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2318 struct cfg80211_disassoc_request *req) 2319 { 2320 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2321 } 2322 2323 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2324 struct cfg80211_ibss_params *params) 2325 { 2326 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2327 } 2328 2329 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2330 { 2331 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2332 } 2333 2334 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2335 struct ocb_setup *setup) 2336 { 2337 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2338 } 2339 2340 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2341 { 2342 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2343 } 2344 2345 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2346 int rate[NUM_NL80211_BANDS]) 2347 { 2348 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2349 2350 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2351 sizeof(int) * NUM_NL80211_BANDS); 2352 2353 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2354 2355 return 0; 2356 } 2357 2358 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2359 { 2360 struct ieee80211_local *local = wiphy_priv(wiphy); 2361 int err; 2362 2363 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2364 ieee80211_check_fast_xmit_all(local); 2365 2366 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2367 2368 if (err) { 2369 ieee80211_check_fast_xmit_all(local); 2370 return err; 2371 } 2372 } 2373 2374 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2375 (changed & WIPHY_PARAM_DYN_ACK)) { 2376 s16 coverage_class; 2377 2378 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2379 wiphy->coverage_class : -1; 2380 err = drv_set_coverage_class(local, coverage_class); 2381 2382 if (err) 2383 return err; 2384 } 2385 2386 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2387 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2388 2389 if (err) 2390 return err; 2391 } 2392 2393 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2394 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2395 return -EINVAL; 2396 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2397 } 2398 if (changed & WIPHY_PARAM_RETRY_LONG) { 2399 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2400 return -EINVAL; 2401 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2402 } 2403 if (changed & 2404 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2405 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2406 2407 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2408 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2409 WIPHY_PARAM_TXQ_QUANTUM)) 2410 ieee80211_txq_set_params(local); 2411 2412 return 0; 2413 } 2414 2415 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2416 struct wireless_dev *wdev, 2417 enum nl80211_tx_power_setting type, int mbm) 2418 { 2419 struct ieee80211_local *local = wiphy_priv(wiphy); 2420 struct ieee80211_sub_if_data *sdata; 2421 enum nl80211_tx_power_setting txp_type = type; 2422 bool update_txp_type = false; 2423 bool has_monitor = false; 2424 2425 if (wdev) { 2426 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2427 2428 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2429 sdata = rtnl_dereference(local->monitor_sdata); 2430 if (!sdata) 2431 return -EOPNOTSUPP; 2432 } 2433 2434 switch (type) { 2435 case NL80211_TX_POWER_AUTOMATIC: 2436 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2437 txp_type = NL80211_TX_POWER_LIMITED; 2438 break; 2439 case NL80211_TX_POWER_LIMITED: 2440 case NL80211_TX_POWER_FIXED: 2441 if (mbm < 0 || (mbm % 100)) 2442 return -EOPNOTSUPP; 2443 sdata->user_power_level = MBM_TO_DBM(mbm); 2444 break; 2445 } 2446 2447 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2448 update_txp_type = true; 2449 sdata->vif.bss_conf.txpower_type = txp_type; 2450 } 2451 2452 ieee80211_recalc_txpower(sdata, update_txp_type); 2453 2454 return 0; 2455 } 2456 2457 switch (type) { 2458 case NL80211_TX_POWER_AUTOMATIC: 2459 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2460 txp_type = NL80211_TX_POWER_LIMITED; 2461 break; 2462 case NL80211_TX_POWER_LIMITED: 2463 case NL80211_TX_POWER_FIXED: 2464 if (mbm < 0 || (mbm % 100)) 2465 return -EOPNOTSUPP; 2466 local->user_power_level = MBM_TO_DBM(mbm); 2467 break; 2468 } 2469 2470 mutex_lock(&local->iflist_mtx); 2471 list_for_each_entry(sdata, &local->interfaces, list) { 2472 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2473 has_monitor = true; 2474 continue; 2475 } 2476 sdata->user_power_level = local->user_power_level; 2477 if (txp_type != sdata->vif.bss_conf.txpower_type) 2478 update_txp_type = true; 2479 sdata->vif.bss_conf.txpower_type = txp_type; 2480 } 2481 list_for_each_entry(sdata, &local->interfaces, list) { 2482 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2483 continue; 2484 ieee80211_recalc_txpower(sdata, update_txp_type); 2485 } 2486 mutex_unlock(&local->iflist_mtx); 2487 2488 if (has_monitor) { 2489 sdata = rtnl_dereference(local->monitor_sdata); 2490 if (sdata) { 2491 sdata->user_power_level = local->user_power_level; 2492 if (txp_type != sdata->vif.bss_conf.txpower_type) 2493 update_txp_type = true; 2494 sdata->vif.bss_conf.txpower_type = txp_type; 2495 2496 ieee80211_recalc_txpower(sdata, update_txp_type); 2497 } 2498 } 2499 2500 return 0; 2501 } 2502 2503 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2504 struct wireless_dev *wdev, 2505 int *dbm) 2506 { 2507 struct ieee80211_local *local = wiphy_priv(wiphy); 2508 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2509 2510 if (local->ops->get_txpower) 2511 return drv_get_txpower(local, sdata, dbm); 2512 2513 if (!local->use_chanctx) 2514 *dbm = local->hw.conf.power_level; 2515 else 2516 *dbm = sdata->vif.bss_conf.txpower; 2517 2518 return 0; 2519 } 2520 2521 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2522 const u8 *addr) 2523 { 2524 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2525 2526 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2527 2528 return 0; 2529 } 2530 2531 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2532 { 2533 struct ieee80211_local *local = wiphy_priv(wiphy); 2534 2535 drv_rfkill_poll(local); 2536 } 2537 2538 #ifdef CONFIG_NL80211_TESTMODE 2539 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2540 struct wireless_dev *wdev, 2541 void *data, int len) 2542 { 2543 struct ieee80211_local *local = wiphy_priv(wiphy); 2544 struct ieee80211_vif *vif = NULL; 2545 2546 if (!local->ops->testmode_cmd) 2547 return -EOPNOTSUPP; 2548 2549 if (wdev) { 2550 struct ieee80211_sub_if_data *sdata; 2551 2552 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2553 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2554 vif = &sdata->vif; 2555 } 2556 2557 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2558 } 2559 2560 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2561 struct sk_buff *skb, 2562 struct netlink_callback *cb, 2563 void *data, int len) 2564 { 2565 struct ieee80211_local *local = wiphy_priv(wiphy); 2566 2567 if (!local->ops->testmode_dump) 2568 return -EOPNOTSUPP; 2569 2570 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2571 } 2572 #endif 2573 2574 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, 2575 enum ieee80211_smps_mode smps_mode) 2576 { 2577 struct sta_info *sta; 2578 enum ieee80211_smps_mode old_req; 2579 2580 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) 2581 return -EINVAL; 2582 2583 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2584 return 0; 2585 2586 old_req = sdata->u.ap.req_smps; 2587 sdata->u.ap.req_smps = smps_mode; 2588 2589 /* AUTOMATIC doesn't mean much for AP - don't allow it */ 2590 if (old_req == smps_mode || 2591 smps_mode == IEEE80211_SMPS_AUTOMATIC) 2592 return 0; 2593 2594 ht_dbg(sdata, 2595 "SMPS %d requested in AP mode, sending Action frame to %d stations\n", 2596 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); 2597 2598 mutex_lock(&sdata->local->sta_mtx); 2599 list_for_each_entry(sta, &sdata->local->sta_list, list) { 2600 /* 2601 * Only stations associated to our AP and 2602 * associated VLANs 2603 */ 2604 if (sta->sdata->bss != &sdata->u.ap) 2605 continue; 2606 2607 /* This station doesn't support MIMO - skip it */ 2608 if (sta_info_tx_streams(sta) == 1) 2609 continue; 2610 2611 /* 2612 * Don't wake up a STA just to send the action frame 2613 * unless we are getting more restrictive. 2614 */ 2615 if (test_sta_flag(sta, WLAN_STA_PS_STA) && 2616 !ieee80211_smps_is_restrictive(sta->known_smps_mode, 2617 smps_mode)) { 2618 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n", 2619 sta->sta.addr); 2620 continue; 2621 } 2622 2623 /* 2624 * If the STA is not authorized, wait until it gets 2625 * authorized and the action frame will be sent then. 2626 */ 2627 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2628 continue; 2629 2630 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); 2631 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr, 2632 sdata->vif.bss_conf.bssid); 2633 } 2634 mutex_unlock(&sdata->local->sta_mtx); 2635 2636 sdata->smps_mode = smps_mode; 2637 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2638 2639 return 0; 2640 } 2641 2642 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2643 enum ieee80211_smps_mode smps_mode) 2644 { 2645 const u8 *ap; 2646 enum ieee80211_smps_mode old_req; 2647 int err; 2648 struct sta_info *sta; 2649 bool tdls_peer_found = false; 2650 2651 lockdep_assert_held(&sdata->wdev.mtx); 2652 2653 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2654 return -EINVAL; 2655 2656 old_req = sdata->u.mgd.req_smps; 2657 sdata->u.mgd.req_smps = smps_mode; 2658 2659 if (old_req == smps_mode && 2660 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2661 return 0; 2662 2663 /* 2664 * If not associated, or current association is not an HT 2665 * association, there's no need to do anything, just store 2666 * the new value until we associate. 2667 */ 2668 if (!sdata->u.mgd.associated || 2669 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2670 return 0; 2671 2672 ap = sdata->u.mgd.associated->bssid; 2673 2674 rcu_read_lock(); 2675 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2676 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2677 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2678 continue; 2679 2680 tdls_peer_found = true; 2681 break; 2682 } 2683 rcu_read_unlock(); 2684 2685 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2686 if (tdls_peer_found || !sdata->u.mgd.powersave) 2687 smps_mode = IEEE80211_SMPS_OFF; 2688 else 2689 smps_mode = IEEE80211_SMPS_DYNAMIC; 2690 } 2691 2692 /* send SM PS frame to AP */ 2693 err = ieee80211_send_smps_action(sdata, smps_mode, 2694 ap, ap); 2695 if (err) 2696 sdata->u.mgd.req_smps = old_req; 2697 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2698 ieee80211_teardown_tdls_peers(sdata); 2699 2700 return err; 2701 } 2702 2703 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2704 bool enabled, int timeout) 2705 { 2706 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2707 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2708 2709 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2710 return -EOPNOTSUPP; 2711 2712 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2713 return -EOPNOTSUPP; 2714 2715 if (enabled == sdata->u.mgd.powersave && 2716 timeout == local->dynamic_ps_forced_timeout) 2717 return 0; 2718 2719 sdata->u.mgd.powersave = enabled; 2720 local->dynamic_ps_forced_timeout = timeout; 2721 2722 /* no change, but if automatic follow powersave */ 2723 sdata_lock(sdata); 2724 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2725 sdata_unlock(sdata); 2726 2727 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2728 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2729 2730 ieee80211_recalc_ps(local); 2731 ieee80211_recalc_ps_vif(sdata); 2732 ieee80211_check_fast_rx_iface(sdata); 2733 2734 return 0; 2735 } 2736 2737 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2738 struct net_device *dev, 2739 s32 rssi_thold, u32 rssi_hyst) 2740 { 2741 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2742 struct ieee80211_vif *vif = &sdata->vif; 2743 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2744 2745 if (rssi_thold == bss_conf->cqm_rssi_thold && 2746 rssi_hyst == bss_conf->cqm_rssi_hyst) 2747 return 0; 2748 2749 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2750 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2751 return -EOPNOTSUPP; 2752 2753 bss_conf->cqm_rssi_thold = rssi_thold; 2754 bss_conf->cqm_rssi_hyst = rssi_hyst; 2755 bss_conf->cqm_rssi_low = 0; 2756 bss_conf->cqm_rssi_high = 0; 2757 sdata->u.mgd.last_cqm_event_signal = 0; 2758 2759 /* tell the driver upon association, unless already associated */ 2760 if (sdata->u.mgd.associated && 2761 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2762 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2763 2764 return 0; 2765 } 2766 2767 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2768 struct net_device *dev, 2769 s32 rssi_low, s32 rssi_high) 2770 { 2771 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2772 struct ieee80211_vif *vif = &sdata->vif; 2773 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2774 2775 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2776 return -EOPNOTSUPP; 2777 2778 bss_conf->cqm_rssi_low = rssi_low; 2779 bss_conf->cqm_rssi_high = rssi_high; 2780 bss_conf->cqm_rssi_thold = 0; 2781 bss_conf->cqm_rssi_hyst = 0; 2782 sdata->u.mgd.last_cqm_event_signal = 0; 2783 2784 /* tell the driver upon association, unless already associated */ 2785 if (sdata->u.mgd.associated && 2786 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2787 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2788 2789 return 0; 2790 } 2791 2792 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2793 struct net_device *dev, 2794 const u8 *addr, 2795 const struct cfg80211_bitrate_mask *mask) 2796 { 2797 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2798 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2799 int i, ret; 2800 2801 if (!ieee80211_sdata_running(sdata)) 2802 return -ENETDOWN; 2803 2804 /* 2805 * If active validate the setting and reject it if it doesn't leave 2806 * at least one basic rate usable, since we really have to be able 2807 * to send something, and if we're an AP we have to be able to do 2808 * so at a basic rate so that all clients can receive it. 2809 */ 2810 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2811 sdata->vif.bss_conf.chandef.chan) { 2812 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2813 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2814 2815 if (!(mask->control[band].legacy & basic_rates)) 2816 return -EINVAL; 2817 } 2818 2819 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2820 ret = drv_set_bitrate_mask(local, sdata, mask); 2821 if (ret) 2822 return ret; 2823 } 2824 2825 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2826 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2827 int j; 2828 2829 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2830 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2831 sizeof(mask->control[i].ht_mcs)); 2832 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2833 mask->control[i].vht_mcs, 2834 sizeof(mask->control[i].vht_mcs)); 2835 2836 sdata->rc_has_mcs_mask[i] = false; 2837 sdata->rc_has_vht_mcs_mask[i] = false; 2838 if (!sband) 2839 continue; 2840 2841 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2842 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2843 sdata->rc_has_mcs_mask[i] = true; 2844 break; 2845 } 2846 } 2847 2848 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2849 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2850 sdata->rc_has_vht_mcs_mask[i] = true; 2851 break; 2852 } 2853 } 2854 } 2855 2856 return 0; 2857 } 2858 2859 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2860 struct net_device *dev, 2861 struct cfg80211_chan_def *chandef, 2862 u32 cac_time_ms) 2863 { 2864 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2865 struct ieee80211_local *local = sdata->local; 2866 int err; 2867 2868 mutex_lock(&local->mtx); 2869 if (!list_empty(&local->roc_list) || local->scanning) { 2870 err = -EBUSY; 2871 goto out_unlock; 2872 } 2873 2874 /* whatever, but channel contexts should not complain about that one */ 2875 sdata->smps_mode = IEEE80211_SMPS_OFF; 2876 sdata->needed_rx_chains = local->rx_chains; 2877 2878 err = ieee80211_vif_use_channel(sdata, chandef, 2879 IEEE80211_CHANCTX_SHARED); 2880 if (err) 2881 goto out_unlock; 2882 2883 ieee80211_queue_delayed_work(&sdata->local->hw, 2884 &sdata->dfs_cac_timer_work, 2885 msecs_to_jiffies(cac_time_ms)); 2886 2887 out_unlock: 2888 mutex_unlock(&local->mtx); 2889 return err; 2890 } 2891 2892 static struct cfg80211_beacon_data * 2893 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2894 { 2895 struct cfg80211_beacon_data *new_beacon; 2896 u8 *pos; 2897 int len; 2898 2899 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2900 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2901 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 2902 2903 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2904 if (!new_beacon) 2905 return NULL; 2906 2907 pos = (u8 *)(new_beacon + 1); 2908 if (beacon->head_len) { 2909 new_beacon->head_len = beacon->head_len; 2910 new_beacon->head = pos; 2911 memcpy(pos, beacon->head, beacon->head_len); 2912 pos += beacon->head_len; 2913 } 2914 if (beacon->tail_len) { 2915 new_beacon->tail_len = beacon->tail_len; 2916 new_beacon->tail = pos; 2917 memcpy(pos, beacon->tail, beacon->tail_len); 2918 pos += beacon->tail_len; 2919 } 2920 if (beacon->beacon_ies_len) { 2921 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2922 new_beacon->beacon_ies = pos; 2923 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2924 pos += beacon->beacon_ies_len; 2925 } 2926 if (beacon->proberesp_ies_len) { 2927 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2928 new_beacon->proberesp_ies = pos; 2929 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2930 pos += beacon->proberesp_ies_len; 2931 } 2932 if (beacon->assocresp_ies_len) { 2933 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2934 new_beacon->assocresp_ies = pos; 2935 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2936 pos += beacon->assocresp_ies_len; 2937 } 2938 if (beacon->probe_resp_len) { 2939 new_beacon->probe_resp_len = beacon->probe_resp_len; 2940 new_beacon->probe_resp = pos; 2941 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 2942 pos += beacon->probe_resp_len; 2943 } 2944 2945 /* might copy -1, meaning no changes requested */ 2946 new_beacon->ftm_responder = beacon->ftm_responder; 2947 if (beacon->lci) { 2948 new_beacon->lci_len = beacon->lci_len; 2949 new_beacon->lci = pos; 2950 memcpy(pos, beacon->lci, beacon->lci_len); 2951 pos += beacon->lci_len; 2952 } 2953 if (beacon->civicloc) { 2954 new_beacon->civicloc_len = beacon->civicloc_len; 2955 new_beacon->civicloc = pos; 2956 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 2957 pos += beacon->civicloc_len; 2958 } 2959 2960 return new_beacon; 2961 } 2962 2963 void ieee80211_csa_finish(struct ieee80211_vif *vif) 2964 { 2965 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2966 2967 ieee80211_queue_work(&sdata->local->hw, 2968 &sdata->csa_finalize_work); 2969 } 2970 EXPORT_SYMBOL(ieee80211_csa_finish); 2971 2972 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 2973 u32 *changed) 2974 { 2975 int err; 2976 2977 switch (sdata->vif.type) { 2978 case NL80211_IFTYPE_AP: 2979 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 2980 NULL); 2981 kfree(sdata->u.ap.next_beacon); 2982 sdata->u.ap.next_beacon = NULL; 2983 2984 if (err < 0) 2985 return err; 2986 *changed |= err; 2987 break; 2988 case NL80211_IFTYPE_ADHOC: 2989 err = ieee80211_ibss_finish_csa(sdata); 2990 if (err < 0) 2991 return err; 2992 *changed |= err; 2993 break; 2994 #ifdef CONFIG_MAC80211_MESH 2995 case NL80211_IFTYPE_MESH_POINT: 2996 err = ieee80211_mesh_finish_csa(sdata); 2997 if (err < 0) 2998 return err; 2999 *changed |= err; 3000 break; 3001 #endif 3002 default: 3003 WARN_ON(1); 3004 return -EINVAL; 3005 } 3006 3007 return 0; 3008 } 3009 3010 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3011 { 3012 struct ieee80211_local *local = sdata->local; 3013 u32 changed = 0; 3014 int err; 3015 3016 sdata_assert_lock(sdata); 3017 lockdep_assert_held(&local->mtx); 3018 lockdep_assert_held(&local->chanctx_mtx); 3019 3020 /* 3021 * using reservation isn't immediate as it may be deferred until later 3022 * with multi-vif. once reservation is complete it will re-schedule the 3023 * work with no reserved_chanctx so verify chandef to check if it 3024 * completed successfully 3025 */ 3026 3027 if (sdata->reserved_chanctx) { 3028 /* 3029 * with multi-vif csa driver may call ieee80211_csa_finish() 3030 * many times while waiting for other interfaces to use their 3031 * reservations 3032 */ 3033 if (sdata->reserved_ready) 3034 return 0; 3035 3036 return ieee80211_vif_use_reserved_context(sdata); 3037 } 3038 3039 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3040 &sdata->csa_chandef)) 3041 return -EINVAL; 3042 3043 sdata->vif.csa_active = false; 3044 3045 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3046 if (err) 3047 return err; 3048 3049 ieee80211_bss_info_change_notify(sdata, changed); 3050 3051 if (sdata->csa_block_tx) { 3052 ieee80211_wake_vif_queues(local, sdata, 3053 IEEE80211_QUEUE_STOP_REASON_CSA); 3054 sdata->csa_block_tx = false; 3055 } 3056 3057 err = drv_post_channel_switch(sdata); 3058 if (err) 3059 return err; 3060 3061 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3062 3063 return 0; 3064 } 3065 3066 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3067 { 3068 if (__ieee80211_csa_finalize(sdata)) { 3069 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3070 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3071 GFP_KERNEL); 3072 } 3073 } 3074 3075 void ieee80211_csa_finalize_work(struct work_struct *work) 3076 { 3077 struct ieee80211_sub_if_data *sdata = 3078 container_of(work, struct ieee80211_sub_if_data, 3079 csa_finalize_work); 3080 struct ieee80211_local *local = sdata->local; 3081 3082 sdata_lock(sdata); 3083 mutex_lock(&local->mtx); 3084 mutex_lock(&local->chanctx_mtx); 3085 3086 /* AP might have been stopped while waiting for the lock. */ 3087 if (!sdata->vif.csa_active) 3088 goto unlock; 3089 3090 if (!ieee80211_sdata_running(sdata)) 3091 goto unlock; 3092 3093 ieee80211_csa_finalize(sdata); 3094 3095 unlock: 3096 mutex_unlock(&local->chanctx_mtx); 3097 mutex_unlock(&local->mtx); 3098 sdata_unlock(sdata); 3099 } 3100 3101 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3102 struct cfg80211_csa_settings *params, 3103 u32 *changed) 3104 { 3105 struct ieee80211_csa_settings csa = {}; 3106 int err; 3107 3108 switch (sdata->vif.type) { 3109 case NL80211_IFTYPE_AP: 3110 sdata->u.ap.next_beacon = 3111 cfg80211_beacon_dup(¶ms->beacon_after); 3112 if (!sdata->u.ap.next_beacon) 3113 return -ENOMEM; 3114 3115 /* 3116 * With a count of 0, we don't have to wait for any 3117 * TBTT before switching, so complete the CSA 3118 * immediately. In theory, with a count == 1 we 3119 * should delay the switch until just before the next 3120 * TBTT, but that would complicate things so we switch 3121 * immediately too. If we would delay the switch 3122 * until the next TBTT, we would have to set the probe 3123 * response here. 3124 * 3125 * TODO: A channel switch with count <= 1 without 3126 * sending a CSA action frame is kind of useless, 3127 * because the clients won't know we're changing 3128 * channels. The action frame must be implemented 3129 * either here or in the userspace. 3130 */ 3131 if (params->count <= 1) 3132 break; 3133 3134 if ((params->n_counter_offsets_beacon > 3135 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3136 (params->n_counter_offsets_presp > 3137 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3138 return -EINVAL; 3139 3140 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3141 csa.counter_offsets_presp = params->counter_offsets_presp; 3142 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3143 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3144 csa.count = params->count; 3145 3146 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3147 if (err < 0) { 3148 kfree(sdata->u.ap.next_beacon); 3149 return err; 3150 } 3151 *changed |= err; 3152 3153 break; 3154 case NL80211_IFTYPE_ADHOC: 3155 if (!sdata->vif.bss_conf.ibss_joined) 3156 return -EINVAL; 3157 3158 if (params->chandef.width != sdata->u.ibss.chandef.width) 3159 return -EINVAL; 3160 3161 switch (params->chandef.width) { 3162 case NL80211_CHAN_WIDTH_40: 3163 if (cfg80211_get_chandef_type(¶ms->chandef) != 3164 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3165 return -EINVAL; 3166 case NL80211_CHAN_WIDTH_5: 3167 case NL80211_CHAN_WIDTH_10: 3168 case NL80211_CHAN_WIDTH_20_NOHT: 3169 case NL80211_CHAN_WIDTH_20: 3170 break; 3171 default: 3172 return -EINVAL; 3173 } 3174 3175 /* changes into another band are not supported */ 3176 if (sdata->u.ibss.chandef.chan->band != 3177 params->chandef.chan->band) 3178 return -EINVAL; 3179 3180 /* see comments in the NL80211_IFTYPE_AP block */ 3181 if (params->count > 1) { 3182 err = ieee80211_ibss_csa_beacon(sdata, params); 3183 if (err < 0) 3184 return err; 3185 *changed |= err; 3186 } 3187 3188 ieee80211_send_action_csa(sdata, params); 3189 3190 break; 3191 #ifdef CONFIG_MAC80211_MESH 3192 case NL80211_IFTYPE_MESH_POINT: { 3193 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3194 3195 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3196 return -EINVAL; 3197 3198 /* changes into another band are not supported */ 3199 if (sdata->vif.bss_conf.chandef.chan->band != 3200 params->chandef.chan->band) 3201 return -EINVAL; 3202 3203 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3204 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3205 if (!ifmsh->pre_value) 3206 ifmsh->pre_value = 1; 3207 else 3208 ifmsh->pre_value++; 3209 } 3210 3211 /* see comments in the NL80211_IFTYPE_AP block */ 3212 if (params->count > 1) { 3213 err = ieee80211_mesh_csa_beacon(sdata, params); 3214 if (err < 0) { 3215 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3216 return err; 3217 } 3218 *changed |= err; 3219 } 3220 3221 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3222 ieee80211_send_action_csa(sdata, params); 3223 3224 break; 3225 } 3226 #endif 3227 default: 3228 return -EOPNOTSUPP; 3229 } 3230 3231 return 0; 3232 } 3233 3234 static int 3235 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3236 struct cfg80211_csa_settings *params) 3237 { 3238 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3239 struct ieee80211_local *local = sdata->local; 3240 struct ieee80211_channel_switch ch_switch; 3241 struct ieee80211_chanctx_conf *conf; 3242 struct ieee80211_chanctx *chanctx; 3243 u32 changed = 0; 3244 int err; 3245 3246 sdata_assert_lock(sdata); 3247 lockdep_assert_held(&local->mtx); 3248 3249 if (!list_empty(&local->roc_list) || local->scanning) 3250 return -EBUSY; 3251 3252 if (sdata->wdev.cac_started) 3253 return -EBUSY; 3254 3255 if (cfg80211_chandef_identical(¶ms->chandef, 3256 &sdata->vif.bss_conf.chandef)) 3257 return -EINVAL; 3258 3259 /* don't allow another channel switch if one is already active. */ 3260 if (sdata->vif.csa_active) 3261 return -EBUSY; 3262 3263 mutex_lock(&local->chanctx_mtx); 3264 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3265 lockdep_is_held(&local->chanctx_mtx)); 3266 if (!conf) { 3267 err = -EBUSY; 3268 goto out; 3269 } 3270 3271 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3272 3273 ch_switch.timestamp = 0; 3274 ch_switch.device_timestamp = 0; 3275 ch_switch.block_tx = params->block_tx; 3276 ch_switch.chandef = params->chandef; 3277 ch_switch.count = params->count; 3278 3279 err = drv_pre_channel_switch(sdata, &ch_switch); 3280 if (err) 3281 goto out; 3282 3283 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3284 chanctx->mode, 3285 params->radar_required); 3286 if (err) 3287 goto out; 3288 3289 /* if reservation is invalid then this will fail */ 3290 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3291 if (err) { 3292 ieee80211_vif_unreserve_chanctx(sdata); 3293 goto out; 3294 } 3295 3296 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3297 if (err) { 3298 ieee80211_vif_unreserve_chanctx(sdata); 3299 goto out; 3300 } 3301 3302 sdata->csa_chandef = params->chandef; 3303 sdata->csa_block_tx = params->block_tx; 3304 sdata->vif.csa_active = true; 3305 3306 if (sdata->csa_block_tx) 3307 ieee80211_stop_vif_queues(local, sdata, 3308 IEEE80211_QUEUE_STOP_REASON_CSA); 3309 3310 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3311 params->count); 3312 3313 if (changed) { 3314 ieee80211_bss_info_change_notify(sdata, changed); 3315 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3316 } else { 3317 /* if the beacon didn't change, we can finalize immediately */ 3318 ieee80211_csa_finalize(sdata); 3319 } 3320 3321 out: 3322 mutex_unlock(&local->chanctx_mtx); 3323 return err; 3324 } 3325 3326 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3327 struct cfg80211_csa_settings *params) 3328 { 3329 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3330 struct ieee80211_local *local = sdata->local; 3331 int err; 3332 3333 mutex_lock(&local->mtx); 3334 err = __ieee80211_channel_switch(wiphy, dev, params); 3335 mutex_unlock(&local->mtx); 3336 3337 return err; 3338 } 3339 3340 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3341 { 3342 lockdep_assert_held(&local->mtx); 3343 3344 local->roc_cookie_counter++; 3345 3346 /* wow, you wrapped 64 bits ... more likely a bug */ 3347 if (WARN_ON(local->roc_cookie_counter == 0)) 3348 local->roc_cookie_counter++; 3349 3350 return local->roc_cookie_counter; 3351 } 3352 3353 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3354 u64 *cookie, gfp_t gfp) 3355 { 3356 unsigned long spin_flags; 3357 struct sk_buff *ack_skb; 3358 int id; 3359 3360 ack_skb = skb_copy(skb, gfp); 3361 if (!ack_skb) 3362 return -ENOMEM; 3363 3364 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3365 id = idr_alloc(&local->ack_status_frames, ack_skb, 3366 1, 0x10000, GFP_ATOMIC); 3367 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3368 3369 if (id < 0) { 3370 kfree_skb(ack_skb); 3371 return -ENOMEM; 3372 } 3373 3374 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3375 3376 *cookie = ieee80211_mgmt_tx_cookie(local); 3377 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3378 3379 return 0; 3380 } 3381 3382 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3383 struct wireless_dev *wdev, 3384 u16 frame_type, bool reg) 3385 { 3386 struct ieee80211_local *local = wiphy_priv(wiphy); 3387 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3388 3389 switch (frame_type) { 3390 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3391 if (reg) { 3392 local->probe_req_reg++; 3393 sdata->vif.probe_req_reg++; 3394 } else { 3395 if (local->probe_req_reg) 3396 local->probe_req_reg--; 3397 3398 if (sdata->vif.probe_req_reg) 3399 sdata->vif.probe_req_reg--; 3400 } 3401 3402 if (!local->open_count) 3403 break; 3404 3405 if (sdata->vif.probe_req_reg == 1) 3406 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ, 3407 FIF_PROBE_REQ); 3408 else if (sdata->vif.probe_req_reg == 0) 3409 drv_config_iface_filter(local, sdata, 0, 3410 FIF_PROBE_REQ); 3411 3412 ieee80211_configure_filter(local); 3413 break; 3414 default: 3415 break; 3416 } 3417 } 3418 3419 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3420 { 3421 struct ieee80211_local *local = wiphy_priv(wiphy); 3422 3423 if (local->started) 3424 return -EOPNOTSUPP; 3425 3426 return drv_set_antenna(local, tx_ant, rx_ant); 3427 } 3428 3429 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3430 { 3431 struct ieee80211_local *local = wiphy_priv(wiphy); 3432 3433 return drv_get_antenna(local, tx_ant, rx_ant); 3434 } 3435 3436 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3437 struct net_device *dev, 3438 struct cfg80211_gtk_rekey_data *data) 3439 { 3440 struct ieee80211_local *local = wiphy_priv(wiphy); 3441 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3442 3443 if (!local->ops->set_rekey_data) 3444 return -EOPNOTSUPP; 3445 3446 drv_set_rekey_data(local, sdata, data); 3447 3448 return 0; 3449 } 3450 3451 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3452 const u8 *peer, u64 *cookie) 3453 { 3454 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3455 struct ieee80211_local *local = sdata->local; 3456 struct ieee80211_qos_hdr *nullfunc; 3457 struct sk_buff *skb; 3458 int size = sizeof(*nullfunc); 3459 __le16 fc; 3460 bool qos; 3461 struct ieee80211_tx_info *info; 3462 struct sta_info *sta; 3463 struct ieee80211_chanctx_conf *chanctx_conf; 3464 enum nl80211_band band; 3465 int ret; 3466 3467 /* the lock is needed to assign the cookie later */ 3468 mutex_lock(&local->mtx); 3469 3470 rcu_read_lock(); 3471 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3472 if (WARN_ON(!chanctx_conf)) { 3473 ret = -EINVAL; 3474 goto unlock; 3475 } 3476 band = chanctx_conf->def.chan->band; 3477 sta = sta_info_get_bss(sdata, peer); 3478 if (sta) { 3479 qos = sta->sta.wme; 3480 } else { 3481 ret = -ENOLINK; 3482 goto unlock; 3483 } 3484 3485 if (qos) { 3486 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3487 IEEE80211_STYPE_QOS_NULLFUNC | 3488 IEEE80211_FCTL_FROMDS); 3489 } else { 3490 size -= 2; 3491 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3492 IEEE80211_STYPE_NULLFUNC | 3493 IEEE80211_FCTL_FROMDS); 3494 } 3495 3496 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3497 if (!skb) { 3498 ret = -ENOMEM; 3499 goto unlock; 3500 } 3501 3502 skb->dev = dev; 3503 3504 skb_reserve(skb, local->hw.extra_tx_headroom); 3505 3506 nullfunc = skb_put(skb, size); 3507 nullfunc->frame_control = fc; 3508 nullfunc->duration_id = 0; 3509 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3510 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3511 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3512 nullfunc->seq_ctrl = 0; 3513 3514 info = IEEE80211_SKB_CB(skb); 3515 3516 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3517 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3518 info->band = band; 3519 3520 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3521 skb->priority = 7; 3522 if (qos) 3523 nullfunc->qos_ctrl = cpu_to_le16(7); 3524 3525 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3526 if (ret) { 3527 kfree_skb(skb); 3528 goto unlock; 3529 } 3530 3531 local_bh_disable(); 3532 ieee80211_xmit(sdata, sta, skb, 0); 3533 local_bh_enable(); 3534 3535 ret = 0; 3536 unlock: 3537 rcu_read_unlock(); 3538 mutex_unlock(&local->mtx); 3539 3540 return ret; 3541 } 3542 3543 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3544 struct wireless_dev *wdev, 3545 struct cfg80211_chan_def *chandef) 3546 { 3547 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3548 struct ieee80211_local *local = wiphy_priv(wiphy); 3549 struct ieee80211_chanctx_conf *chanctx_conf; 3550 int ret = -ENODATA; 3551 3552 rcu_read_lock(); 3553 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3554 if (chanctx_conf) { 3555 *chandef = sdata->vif.bss_conf.chandef; 3556 ret = 0; 3557 } else if (local->open_count > 0 && 3558 local->open_count == local->monitors && 3559 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3560 if (local->use_chanctx) 3561 *chandef = local->monitor_chandef; 3562 else 3563 *chandef = local->_oper_chandef; 3564 ret = 0; 3565 } 3566 rcu_read_unlock(); 3567 3568 return ret; 3569 } 3570 3571 #ifdef CONFIG_PM 3572 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3573 { 3574 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3575 } 3576 #endif 3577 3578 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3579 struct net_device *dev, 3580 struct cfg80211_qos_map *qos_map) 3581 { 3582 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3583 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3584 3585 if (qos_map) { 3586 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3587 if (!new_qos_map) 3588 return -ENOMEM; 3589 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3590 } else { 3591 /* A NULL qos_map was passed to disable QoS mapping */ 3592 new_qos_map = NULL; 3593 } 3594 3595 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3596 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3597 if (old_qos_map) 3598 kfree_rcu(old_qos_map, rcu_head); 3599 3600 return 0; 3601 } 3602 3603 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3604 struct net_device *dev, 3605 struct cfg80211_chan_def *chandef) 3606 { 3607 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3608 int ret; 3609 u32 changed = 0; 3610 3611 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3612 if (ret == 0) 3613 ieee80211_bss_info_change_notify(sdata, changed); 3614 3615 return ret; 3616 } 3617 3618 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3619 u8 tsid, const u8 *peer, u8 up, 3620 u16 admitted_time) 3621 { 3622 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3623 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3624 int ac = ieee802_1d_to_ac[up]; 3625 3626 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3627 return -EOPNOTSUPP; 3628 3629 if (!(sdata->wmm_acm & BIT(up))) 3630 return -EINVAL; 3631 3632 if (ifmgd->tx_tspec[ac].admitted_time) 3633 return -EBUSY; 3634 3635 if (admitted_time) { 3636 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3637 ifmgd->tx_tspec[ac].tsid = tsid; 3638 ifmgd->tx_tspec[ac].up = up; 3639 } 3640 3641 return 0; 3642 } 3643 3644 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3645 u8 tsid, const u8 *peer) 3646 { 3647 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3648 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3649 struct ieee80211_local *local = wiphy_priv(wiphy); 3650 int ac; 3651 3652 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3653 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3654 3655 /* skip unused entries */ 3656 if (!tx_tspec->admitted_time) 3657 continue; 3658 3659 if (tx_tspec->tsid != tsid) 3660 continue; 3661 3662 /* due to this new packets will be reassigned to non-ACM ACs */ 3663 tx_tspec->up = -1; 3664 3665 /* Make sure that all packets have been sent to avoid to 3666 * restore the QoS params on packets that are still on the 3667 * queues. 3668 */ 3669 synchronize_net(); 3670 ieee80211_flush_queues(local, sdata, false); 3671 3672 /* restore the normal QoS parameters 3673 * (unconditionally to avoid races) 3674 */ 3675 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3676 tx_tspec->downgraded = false; 3677 ieee80211_sta_handle_tspec_ac_params(sdata); 3678 3679 /* finally clear all the data */ 3680 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3681 3682 return 0; 3683 } 3684 3685 return -ENOENT; 3686 } 3687 3688 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3689 u8 inst_id, 3690 enum nl80211_nan_func_term_reason reason, 3691 gfp_t gfp) 3692 { 3693 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3694 struct cfg80211_nan_func *func; 3695 u64 cookie; 3696 3697 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3698 return; 3699 3700 spin_lock_bh(&sdata->u.nan.func_lock); 3701 3702 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3703 if (WARN_ON(!func)) { 3704 spin_unlock_bh(&sdata->u.nan.func_lock); 3705 return; 3706 } 3707 3708 cookie = func->cookie; 3709 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3710 3711 spin_unlock_bh(&sdata->u.nan.func_lock); 3712 3713 cfg80211_free_nan_func(func); 3714 3715 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3716 reason, cookie, gfp); 3717 } 3718 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3719 3720 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3721 struct cfg80211_nan_match_params *match, 3722 gfp_t gfp) 3723 { 3724 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3725 struct cfg80211_nan_func *func; 3726 3727 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3728 return; 3729 3730 spin_lock_bh(&sdata->u.nan.func_lock); 3731 3732 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3733 if (WARN_ON(!func)) { 3734 spin_unlock_bh(&sdata->u.nan.func_lock); 3735 return; 3736 } 3737 match->cookie = func->cookie; 3738 3739 spin_unlock_bh(&sdata->u.nan.func_lock); 3740 3741 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3742 } 3743 EXPORT_SYMBOL(ieee80211_nan_func_match); 3744 3745 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3746 struct net_device *dev, 3747 const bool enabled) 3748 { 3749 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3750 3751 sdata->u.ap.multicast_to_unicast = enabled; 3752 3753 return 0; 3754 } 3755 3756 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 3757 struct txq_info *txqi) 3758 { 3759 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 3760 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 3761 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 3762 } 3763 3764 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 3765 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 3766 txqstats->backlog_packets = txqi->tin.backlog_packets; 3767 } 3768 3769 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 3770 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 3771 txqstats->flows = txqi->tin.flows; 3772 } 3773 3774 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 3775 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 3776 txqstats->drops = txqi->cstats.drop_count; 3777 } 3778 3779 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 3780 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 3781 txqstats->ecn_marks = txqi->cstats.ecn_mark; 3782 } 3783 3784 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 3785 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 3786 txqstats->overlimit = txqi->tin.overlimit; 3787 } 3788 3789 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 3790 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 3791 txqstats->collisions = txqi->tin.collisions; 3792 } 3793 3794 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 3795 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 3796 txqstats->tx_bytes = txqi->tin.tx_bytes; 3797 } 3798 3799 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 3800 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 3801 txqstats->tx_packets = txqi->tin.tx_packets; 3802 } 3803 } 3804 3805 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 3806 struct wireless_dev *wdev, 3807 struct cfg80211_txq_stats *txqstats) 3808 { 3809 struct ieee80211_local *local = wiphy_priv(wiphy); 3810 struct ieee80211_sub_if_data *sdata; 3811 int ret = 0; 3812 3813 if (!local->ops->wake_tx_queue) 3814 return 1; 3815 3816 spin_lock_bh(&local->fq.lock); 3817 rcu_read_lock(); 3818 3819 if (wdev) { 3820 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3821 if (!sdata->vif.txq) { 3822 ret = 1; 3823 goto out; 3824 } 3825 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 3826 } else { 3827 /* phy stats */ 3828 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 3829 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 3830 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 3831 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 3832 BIT(NL80211_TXQ_STATS_COLLISIONS) | 3833 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 3834 txqstats->backlog_packets = local->fq.backlog; 3835 txqstats->backlog_bytes = local->fq.memory_usage; 3836 txqstats->overlimit = local->fq.overlimit; 3837 txqstats->overmemory = local->fq.overmemory; 3838 txqstats->collisions = local->fq.collisions; 3839 txqstats->max_flows = local->fq.flows_cnt; 3840 } 3841 3842 out: 3843 rcu_read_unlock(); 3844 spin_unlock_bh(&local->fq.lock); 3845 3846 return ret; 3847 } 3848 3849 static int 3850 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 3851 struct net_device *dev, 3852 struct cfg80211_ftm_responder_stats *ftm_stats) 3853 { 3854 struct ieee80211_local *local = wiphy_priv(wiphy); 3855 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3856 3857 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 3858 } 3859 3860 static int 3861 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3862 struct cfg80211_pmsr_request *request) 3863 { 3864 struct ieee80211_local *local = wiphy_priv(wiphy); 3865 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3866 3867 return drv_start_pmsr(local, sdata, request); 3868 } 3869 3870 static void 3871 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3872 struct cfg80211_pmsr_request *request) 3873 { 3874 struct ieee80211_local *local = wiphy_priv(wiphy); 3875 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3876 3877 return drv_abort_pmsr(local, sdata, request); 3878 } 3879 3880 const struct cfg80211_ops mac80211_config_ops = { 3881 .add_virtual_intf = ieee80211_add_iface, 3882 .del_virtual_intf = ieee80211_del_iface, 3883 .change_virtual_intf = ieee80211_change_iface, 3884 .start_p2p_device = ieee80211_start_p2p_device, 3885 .stop_p2p_device = ieee80211_stop_p2p_device, 3886 .add_key = ieee80211_add_key, 3887 .del_key = ieee80211_del_key, 3888 .get_key = ieee80211_get_key, 3889 .set_default_key = ieee80211_config_default_key, 3890 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3891 .start_ap = ieee80211_start_ap, 3892 .change_beacon = ieee80211_change_beacon, 3893 .stop_ap = ieee80211_stop_ap, 3894 .add_station = ieee80211_add_station, 3895 .del_station = ieee80211_del_station, 3896 .change_station = ieee80211_change_station, 3897 .get_station = ieee80211_get_station, 3898 .dump_station = ieee80211_dump_station, 3899 .dump_survey = ieee80211_dump_survey, 3900 #ifdef CONFIG_MAC80211_MESH 3901 .add_mpath = ieee80211_add_mpath, 3902 .del_mpath = ieee80211_del_mpath, 3903 .change_mpath = ieee80211_change_mpath, 3904 .get_mpath = ieee80211_get_mpath, 3905 .dump_mpath = ieee80211_dump_mpath, 3906 .get_mpp = ieee80211_get_mpp, 3907 .dump_mpp = ieee80211_dump_mpp, 3908 .update_mesh_config = ieee80211_update_mesh_config, 3909 .get_mesh_config = ieee80211_get_mesh_config, 3910 .join_mesh = ieee80211_join_mesh, 3911 .leave_mesh = ieee80211_leave_mesh, 3912 #endif 3913 .join_ocb = ieee80211_join_ocb, 3914 .leave_ocb = ieee80211_leave_ocb, 3915 .change_bss = ieee80211_change_bss, 3916 .set_txq_params = ieee80211_set_txq_params, 3917 .set_monitor_channel = ieee80211_set_monitor_channel, 3918 .suspend = ieee80211_suspend, 3919 .resume = ieee80211_resume, 3920 .scan = ieee80211_scan, 3921 .abort_scan = ieee80211_abort_scan, 3922 .sched_scan_start = ieee80211_sched_scan_start, 3923 .sched_scan_stop = ieee80211_sched_scan_stop, 3924 .auth = ieee80211_auth, 3925 .assoc = ieee80211_assoc, 3926 .deauth = ieee80211_deauth, 3927 .disassoc = ieee80211_disassoc, 3928 .join_ibss = ieee80211_join_ibss, 3929 .leave_ibss = ieee80211_leave_ibss, 3930 .set_mcast_rate = ieee80211_set_mcast_rate, 3931 .set_wiphy_params = ieee80211_set_wiphy_params, 3932 .set_tx_power = ieee80211_set_tx_power, 3933 .get_tx_power = ieee80211_get_tx_power, 3934 .set_wds_peer = ieee80211_set_wds_peer, 3935 .rfkill_poll = ieee80211_rfkill_poll, 3936 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 3937 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 3938 .set_power_mgmt = ieee80211_set_power_mgmt, 3939 .set_bitrate_mask = ieee80211_set_bitrate_mask, 3940 .remain_on_channel = ieee80211_remain_on_channel, 3941 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 3942 .mgmt_tx = ieee80211_mgmt_tx, 3943 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 3944 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 3945 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 3946 .mgmt_frame_register = ieee80211_mgmt_frame_register, 3947 .set_antenna = ieee80211_set_antenna, 3948 .get_antenna = ieee80211_get_antenna, 3949 .set_rekey_data = ieee80211_set_rekey_data, 3950 .tdls_oper = ieee80211_tdls_oper, 3951 .tdls_mgmt = ieee80211_tdls_mgmt, 3952 .tdls_channel_switch = ieee80211_tdls_channel_switch, 3953 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 3954 .probe_client = ieee80211_probe_client, 3955 .set_noack_map = ieee80211_set_noack_map, 3956 #ifdef CONFIG_PM 3957 .set_wakeup = ieee80211_set_wakeup, 3958 #endif 3959 .get_channel = ieee80211_cfg_get_channel, 3960 .start_radar_detection = ieee80211_start_radar_detection, 3961 .channel_switch = ieee80211_channel_switch, 3962 .set_qos_map = ieee80211_set_qos_map, 3963 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 3964 .add_tx_ts = ieee80211_add_tx_ts, 3965 .del_tx_ts = ieee80211_del_tx_ts, 3966 .start_nan = ieee80211_start_nan, 3967 .stop_nan = ieee80211_stop_nan, 3968 .nan_change_conf = ieee80211_nan_change_conf, 3969 .add_nan_func = ieee80211_add_nan_func, 3970 .del_nan_func = ieee80211_del_nan_func, 3971 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 3972 .tx_control_port = ieee80211_tx_control_port, 3973 .get_txq_stats = ieee80211_get_txq_stats, 3974 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 3975 .start_pmsr = ieee80211_start_pmsr, 3976 .abort_pmsr = ieee80211_abort_pmsr, 3977 }; 3978