1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * mac80211 configuration hooks for cfg80211 4 * 5 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 6 * Copyright 2013-2015 Intel Mobile Communications GmbH 7 * Copyright (C) 2015-2017 Intel Deutschland GmbH 8 * Copyright (C) 2018-2019 Intel Corporation 9 * Copyright (C) 2018 Intel Corporation 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/fips.h> 19 #include <linux/if_ether.h> 20 #include <net/cfg80211.h> 21 #include "ieee80211_i.h" 22 #include "driver-ops.h" 23 #include "rate.h" 24 #include "mesh.h" 25 #include "wme.h" 26 27 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 28 struct vif_params *params) 29 { 30 bool mu_mimo_groups = false; 31 bool mu_mimo_follow = false; 32 33 if (params->vht_mumimo_groups) { 34 u64 membership; 35 36 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 37 38 memcpy(sdata->vif.bss_conf.mu_group.membership, 39 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 40 memcpy(sdata->vif.bss_conf.mu_group.position, 41 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 42 WLAN_USER_POSITION_LEN); 43 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS); 44 /* don't care about endianness - just check for 0 */ 45 memcpy(&membership, params->vht_mumimo_groups, 46 WLAN_MEMBERSHIP_LEN); 47 mu_mimo_groups = membership != 0; 48 } 49 50 if (params->vht_mumimo_follow_addr) { 51 mu_mimo_follow = 52 is_valid_ether_addr(params->vht_mumimo_follow_addr); 53 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 54 params->vht_mumimo_follow_addr); 55 } 56 57 sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 58 } 59 60 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 61 struct vif_params *params) 62 { 63 struct ieee80211_local *local = sdata->local; 64 struct ieee80211_sub_if_data *monitor_sdata; 65 66 /* check flags first */ 67 if (params->flags && ieee80211_sdata_running(sdata)) { 68 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 69 70 /* 71 * Prohibit MONITOR_FLAG_COOK_FRAMES and 72 * MONITOR_FLAG_ACTIVE to be changed while the 73 * interface is up. 74 * Else we would need to add a lot of cruft 75 * to update everything: 76 * cooked_mntrs, monitor and all fif_* counters 77 * reconfigure hardware 78 */ 79 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 80 return -EBUSY; 81 } 82 83 /* also validate MU-MIMO change */ 84 monitor_sdata = rtnl_dereference(local->monitor_sdata); 85 86 if (!monitor_sdata && 87 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 88 return -EOPNOTSUPP; 89 90 /* apply all changes now - no failures allowed */ 91 92 if (monitor_sdata) 93 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 94 95 if (params->flags) { 96 if (ieee80211_sdata_running(sdata)) { 97 ieee80211_adjust_monitor_flags(sdata, -1); 98 sdata->u.mntr.flags = params->flags; 99 ieee80211_adjust_monitor_flags(sdata, 1); 100 101 ieee80211_configure_filter(local); 102 } else { 103 /* 104 * Because the interface is down, ieee80211_do_stop 105 * and ieee80211_do_open take care of "everything" 106 * mentioned in the comment above. 107 */ 108 sdata->u.mntr.flags = params->flags; 109 } 110 } 111 112 return 0; 113 } 114 115 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 116 const char *name, 117 unsigned char name_assign_type, 118 enum nl80211_iftype type, 119 struct vif_params *params) 120 { 121 struct ieee80211_local *local = wiphy_priv(wiphy); 122 struct wireless_dev *wdev; 123 struct ieee80211_sub_if_data *sdata; 124 int err; 125 126 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 127 if (err) 128 return ERR_PTR(err); 129 130 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 131 132 if (type == NL80211_IFTYPE_MONITOR) { 133 err = ieee80211_set_mon_options(sdata, params); 134 if (err) { 135 ieee80211_if_remove(sdata); 136 return NULL; 137 } 138 } 139 140 return wdev; 141 } 142 143 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 144 { 145 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 146 147 return 0; 148 } 149 150 static int ieee80211_change_iface(struct wiphy *wiphy, 151 struct net_device *dev, 152 enum nl80211_iftype type, 153 struct vif_params *params) 154 { 155 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 156 int ret; 157 158 ret = ieee80211_if_change_type(sdata, type); 159 if (ret) 160 return ret; 161 162 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 163 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 164 ieee80211_check_fast_rx_iface(sdata); 165 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 166 sdata->u.mgd.use_4addr = params->use_4addr; 167 } 168 169 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 170 ret = ieee80211_set_mon_options(sdata, params); 171 if (ret) 172 return ret; 173 } 174 175 return 0; 176 } 177 178 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 179 struct wireless_dev *wdev) 180 { 181 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 182 int ret; 183 184 mutex_lock(&sdata->local->chanctx_mtx); 185 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 186 mutex_unlock(&sdata->local->chanctx_mtx); 187 if (ret < 0) 188 return ret; 189 190 return ieee80211_do_open(wdev, true); 191 } 192 193 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 194 struct wireless_dev *wdev) 195 { 196 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 197 } 198 199 static int ieee80211_start_nan(struct wiphy *wiphy, 200 struct wireless_dev *wdev, 201 struct cfg80211_nan_conf *conf) 202 { 203 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 204 int ret; 205 206 mutex_lock(&sdata->local->chanctx_mtx); 207 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 208 mutex_unlock(&sdata->local->chanctx_mtx); 209 if (ret < 0) 210 return ret; 211 212 ret = ieee80211_do_open(wdev, true); 213 if (ret) 214 return ret; 215 216 ret = drv_start_nan(sdata->local, sdata, conf); 217 if (ret) 218 ieee80211_sdata_stop(sdata); 219 220 sdata->u.nan.conf = *conf; 221 222 return ret; 223 } 224 225 static void ieee80211_stop_nan(struct wiphy *wiphy, 226 struct wireless_dev *wdev) 227 { 228 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 229 230 drv_stop_nan(sdata->local, sdata); 231 ieee80211_sdata_stop(sdata); 232 } 233 234 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 235 struct wireless_dev *wdev, 236 struct cfg80211_nan_conf *conf, 237 u32 changes) 238 { 239 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 240 struct cfg80211_nan_conf new_conf; 241 int ret = 0; 242 243 if (sdata->vif.type != NL80211_IFTYPE_NAN) 244 return -EOPNOTSUPP; 245 246 if (!ieee80211_sdata_running(sdata)) 247 return -ENETDOWN; 248 249 new_conf = sdata->u.nan.conf; 250 251 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 252 new_conf.master_pref = conf->master_pref; 253 254 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 255 new_conf.bands = conf->bands; 256 257 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 258 if (!ret) 259 sdata->u.nan.conf = new_conf; 260 261 return ret; 262 } 263 264 static int ieee80211_add_nan_func(struct wiphy *wiphy, 265 struct wireless_dev *wdev, 266 struct cfg80211_nan_func *nan_func) 267 { 268 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 269 int ret; 270 271 if (sdata->vif.type != NL80211_IFTYPE_NAN) 272 return -EOPNOTSUPP; 273 274 if (!ieee80211_sdata_running(sdata)) 275 return -ENETDOWN; 276 277 spin_lock_bh(&sdata->u.nan.func_lock); 278 279 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 280 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 281 GFP_ATOMIC); 282 spin_unlock_bh(&sdata->u.nan.func_lock); 283 284 if (ret < 0) 285 return ret; 286 287 nan_func->instance_id = ret; 288 289 WARN_ON(nan_func->instance_id == 0); 290 291 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 292 if (ret) { 293 spin_lock_bh(&sdata->u.nan.func_lock); 294 idr_remove(&sdata->u.nan.function_inst_ids, 295 nan_func->instance_id); 296 spin_unlock_bh(&sdata->u.nan.func_lock); 297 } 298 299 return ret; 300 } 301 302 static struct cfg80211_nan_func * 303 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 304 u64 cookie) 305 { 306 struct cfg80211_nan_func *func; 307 int id; 308 309 lockdep_assert_held(&sdata->u.nan.func_lock); 310 311 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 312 if (func->cookie == cookie) 313 return func; 314 } 315 316 return NULL; 317 } 318 319 static void ieee80211_del_nan_func(struct wiphy *wiphy, 320 struct wireless_dev *wdev, u64 cookie) 321 { 322 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 323 struct cfg80211_nan_func *func; 324 u8 instance_id = 0; 325 326 if (sdata->vif.type != NL80211_IFTYPE_NAN || 327 !ieee80211_sdata_running(sdata)) 328 return; 329 330 spin_lock_bh(&sdata->u.nan.func_lock); 331 332 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 333 if (func) 334 instance_id = func->instance_id; 335 336 spin_unlock_bh(&sdata->u.nan.func_lock); 337 338 if (instance_id) 339 drv_del_nan_func(sdata->local, sdata, instance_id); 340 } 341 342 static int ieee80211_set_noack_map(struct wiphy *wiphy, 343 struct net_device *dev, 344 u16 noack_map) 345 { 346 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 347 348 sdata->noack_map = noack_map; 349 350 ieee80211_check_fast_xmit_iface(sdata); 351 352 return 0; 353 } 354 355 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 356 const u8 *mac_addr, u8 key_idx) 357 { 358 struct ieee80211_local *local = sdata->local; 359 struct ieee80211_key *key; 360 struct sta_info *sta; 361 int ret = -EINVAL; 362 363 if (!wiphy_ext_feature_isset(local->hw.wiphy, 364 NL80211_EXT_FEATURE_EXT_KEY_ID)) 365 return -EINVAL; 366 367 sta = sta_info_get_bss(sdata, mac_addr); 368 369 if (!sta) 370 return -EINVAL; 371 372 if (sta->ptk_idx == key_idx) 373 return 0; 374 375 mutex_lock(&local->key_mtx); 376 key = key_mtx_dereference(local, sta->ptk[key_idx]); 377 378 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 379 ret = ieee80211_set_tx_key(key); 380 381 mutex_unlock(&local->key_mtx); 382 return ret; 383 } 384 385 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 386 u8 key_idx, bool pairwise, const u8 *mac_addr, 387 struct key_params *params) 388 { 389 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 390 struct ieee80211_local *local = sdata->local; 391 struct sta_info *sta = NULL; 392 const struct ieee80211_cipher_scheme *cs = NULL; 393 struct ieee80211_key *key; 394 int err; 395 396 if (!ieee80211_sdata_running(sdata)) 397 return -ENETDOWN; 398 399 if (pairwise && params->mode == NL80211_KEY_SET_TX) 400 return ieee80211_set_tx(sdata, mac_addr, key_idx); 401 402 /* reject WEP and TKIP keys if WEP failed to initialize */ 403 switch (params->cipher) { 404 case WLAN_CIPHER_SUITE_WEP40: 405 case WLAN_CIPHER_SUITE_TKIP: 406 case WLAN_CIPHER_SUITE_WEP104: 407 if (WARN_ON_ONCE(fips_enabled)) 408 return -EINVAL; 409 case WLAN_CIPHER_SUITE_CCMP: 410 case WLAN_CIPHER_SUITE_CCMP_256: 411 case WLAN_CIPHER_SUITE_AES_CMAC: 412 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 413 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 414 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 415 case WLAN_CIPHER_SUITE_GCMP: 416 case WLAN_CIPHER_SUITE_GCMP_256: 417 break; 418 default: 419 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); 420 break; 421 } 422 423 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 424 params->key, params->seq_len, params->seq, 425 cs); 426 if (IS_ERR(key)) 427 return PTR_ERR(key); 428 429 if (pairwise) 430 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 431 432 if (params->mode == NL80211_KEY_NO_TX) 433 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 434 435 mutex_lock(&local->sta_mtx); 436 437 if (mac_addr) { 438 sta = sta_info_get_bss(sdata, mac_addr); 439 /* 440 * The ASSOC test makes sure the driver is ready to 441 * receive the key. When wpa_supplicant has roamed 442 * using FT, it attempts to set the key before 443 * association has completed, this rejects that attempt 444 * so it will set the key again after association. 445 * 446 * TODO: accept the key if we have a station entry and 447 * add it to the device after the station. 448 */ 449 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 450 ieee80211_key_free_unused(key); 451 err = -ENOENT; 452 goto out_unlock; 453 } 454 } 455 456 switch (sdata->vif.type) { 457 case NL80211_IFTYPE_STATION: 458 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 459 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 460 break; 461 case NL80211_IFTYPE_AP: 462 case NL80211_IFTYPE_AP_VLAN: 463 /* Keys without a station are used for TX only */ 464 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 465 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 466 break; 467 case NL80211_IFTYPE_ADHOC: 468 /* no MFP (yet) */ 469 break; 470 case NL80211_IFTYPE_MESH_POINT: 471 #ifdef CONFIG_MAC80211_MESH 472 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 473 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 474 break; 475 #endif 476 case NL80211_IFTYPE_WDS: 477 case NL80211_IFTYPE_MONITOR: 478 case NL80211_IFTYPE_P2P_DEVICE: 479 case NL80211_IFTYPE_NAN: 480 case NL80211_IFTYPE_UNSPECIFIED: 481 case NUM_NL80211_IFTYPES: 482 case NL80211_IFTYPE_P2P_CLIENT: 483 case NL80211_IFTYPE_P2P_GO: 484 case NL80211_IFTYPE_OCB: 485 /* shouldn't happen */ 486 WARN_ON_ONCE(1); 487 break; 488 } 489 490 if (sta) 491 sta->cipher_scheme = cs; 492 493 err = ieee80211_key_link(key, sdata, sta); 494 495 out_unlock: 496 mutex_unlock(&local->sta_mtx); 497 498 return err; 499 } 500 501 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 502 u8 key_idx, bool pairwise, const u8 *mac_addr) 503 { 504 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 505 struct ieee80211_local *local = sdata->local; 506 struct sta_info *sta; 507 struct ieee80211_key *key = NULL; 508 int ret; 509 510 mutex_lock(&local->sta_mtx); 511 mutex_lock(&local->key_mtx); 512 513 if (mac_addr) { 514 ret = -ENOENT; 515 516 sta = sta_info_get_bss(sdata, mac_addr); 517 if (!sta) 518 goto out_unlock; 519 520 if (pairwise) 521 key = key_mtx_dereference(local, sta->ptk[key_idx]); 522 else 523 key = key_mtx_dereference(local, sta->gtk[key_idx]); 524 } else 525 key = key_mtx_dereference(local, sdata->keys[key_idx]); 526 527 if (!key) { 528 ret = -ENOENT; 529 goto out_unlock; 530 } 531 532 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 533 534 ret = 0; 535 out_unlock: 536 mutex_unlock(&local->key_mtx); 537 mutex_unlock(&local->sta_mtx); 538 539 return ret; 540 } 541 542 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 543 u8 key_idx, bool pairwise, const u8 *mac_addr, 544 void *cookie, 545 void (*callback)(void *cookie, 546 struct key_params *params)) 547 { 548 struct ieee80211_sub_if_data *sdata; 549 struct sta_info *sta = NULL; 550 u8 seq[6] = {0}; 551 struct key_params params; 552 struct ieee80211_key *key = NULL; 553 u64 pn64; 554 u32 iv32; 555 u16 iv16; 556 int err = -ENOENT; 557 struct ieee80211_key_seq kseq = {}; 558 559 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 560 561 rcu_read_lock(); 562 563 if (mac_addr) { 564 sta = sta_info_get_bss(sdata, mac_addr); 565 if (!sta) 566 goto out; 567 568 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 569 key = rcu_dereference(sta->ptk[key_idx]); 570 else if (!pairwise && 571 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) 572 key = rcu_dereference(sta->gtk[key_idx]); 573 } else 574 key = rcu_dereference(sdata->keys[key_idx]); 575 576 if (!key) 577 goto out; 578 579 memset(¶ms, 0, sizeof(params)); 580 581 params.cipher = key->conf.cipher; 582 583 switch (key->conf.cipher) { 584 case WLAN_CIPHER_SUITE_TKIP: 585 pn64 = atomic64_read(&key->conf.tx_pn); 586 iv32 = TKIP_PN_TO_IV32(pn64); 587 iv16 = TKIP_PN_TO_IV16(pn64); 588 589 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 590 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 591 drv_get_key_seq(sdata->local, key, &kseq); 592 iv32 = kseq.tkip.iv32; 593 iv16 = kseq.tkip.iv16; 594 } 595 596 seq[0] = iv16 & 0xff; 597 seq[1] = (iv16 >> 8) & 0xff; 598 seq[2] = iv32 & 0xff; 599 seq[3] = (iv32 >> 8) & 0xff; 600 seq[4] = (iv32 >> 16) & 0xff; 601 seq[5] = (iv32 >> 24) & 0xff; 602 params.seq = seq; 603 params.seq_len = 6; 604 break; 605 case WLAN_CIPHER_SUITE_CCMP: 606 case WLAN_CIPHER_SUITE_CCMP_256: 607 case WLAN_CIPHER_SUITE_AES_CMAC: 608 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 609 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 610 offsetof(typeof(kseq), aes_cmac)); 611 /* fall through */ 612 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 613 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 614 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 615 offsetof(typeof(kseq), aes_gmac)); 616 /* fall through */ 617 case WLAN_CIPHER_SUITE_GCMP: 618 case WLAN_CIPHER_SUITE_GCMP_256: 619 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 620 offsetof(typeof(kseq), gcmp)); 621 622 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 623 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 624 drv_get_key_seq(sdata->local, key, &kseq); 625 memcpy(seq, kseq.ccmp.pn, 6); 626 } else { 627 pn64 = atomic64_read(&key->conf.tx_pn); 628 seq[0] = pn64; 629 seq[1] = pn64 >> 8; 630 seq[2] = pn64 >> 16; 631 seq[3] = pn64 >> 24; 632 seq[4] = pn64 >> 32; 633 seq[5] = pn64 >> 40; 634 } 635 params.seq = seq; 636 params.seq_len = 6; 637 break; 638 default: 639 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 640 break; 641 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 642 break; 643 drv_get_key_seq(sdata->local, key, &kseq); 644 params.seq = kseq.hw.seq; 645 params.seq_len = kseq.hw.seq_len; 646 break; 647 } 648 649 params.key = key->conf.key; 650 params.key_len = key->conf.keylen; 651 652 callback(cookie, ¶ms); 653 err = 0; 654 655 out: 656 rcu_read_unlock(); 657 return err; 658 } 659 660 static int ieee80211_config_default_key(struct wiphy *wiphy, 661 struct net_device *dev, 662 u8 key_idx, bool uni, 663 bool multi) 664 { 665 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 666 667 ieee80211_set_default_key(sdata, key_idx, uni, multi); 668 669 return 0; 670 } 671 672 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 673 struct net_device *dev, 674 u8 key_idx) 675 { 676 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 677 678 ieee80211_set_default_mgmt_key(sdata, key_idx); 679 680 return 0; 681 } 682 683 void sta_set_rate_info_tx(struct sta_info *sta, 684 const struct ieee80211_tx_rate *rate, 685 struct rate_info *rinfo) 686 { 687 rinfo->flags = 0; 688 if (rate->flags & IEEE80211_TX_RC_MCS) { 689 rinfo->flags |= RATE_INFO_FLAGS_MCS; 690 rinfo->mcs = rate->idx; 691 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 692 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 693 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 694 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 695 } else { 696 struct ieee80211_supported_band *sband; 697 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 698 u16 brate; 699 700 sband = ieee80211_get_sband(sta->sdata); 701 if (sband) { 702 brate = sband->bitrates[rate->idx].bitrate; 703 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 704 } 705 } 706 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 707 rinfo->bw = RATE_INFO_BW_40; 708 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 709 rinfo->bw = RATE_INFO_BW_80; 710 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 711 rinfo->bw = RATE_INFO_BW_160; 712 else 713 rinfo->bw = RATE_INFO_BW_20; 714 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 715 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 716 } 717 718 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 719 int idx, u8 *mac, struct station_info *sinfo) 720 { 721 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 722 struct ieee80211_local *local = sdata->local; 723 struct sta_info *sta; 724 int ret = -ENOENT; 725 726 mutex_lock(&local->sta_mtx); 727 728 sta = sta_info_get_by_idx(sdata, idx); 729 if (sta) { 730 ret = 0; 731 memcpy(mac, sta->sta.addr, ETH_ALEN); 732 sta_set_sinfo(sta, sinfo, true); 733 } 734 735 mutex_unlock(&local->sta_mtx); 736 737 return ret; 738 } 739 740 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 741 int idx, struct survey_info *survey) 742 { 743 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 744 745 return drv_get_survey(local, idx, survey); 746 } 747 748 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 749 const u8 *mac, struct station_info *sinfo) 750 { 751 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 752 struct ieee80211_local *local = sdata->local; 753 struct sta_info *sta; 754 int ret = -ENOENT; 755 756 mutex_lock(&local->sta_mtx); 757 758 sta = sta_info_get_bss(sdata, mac); 759 if (sta) { 760 ret = 0; 761 sta_set_sinfo(sta, sinfo, true); 762 } 763 764 mutex_unlock(&local->sta_mtx); 765 766 return ret; 767 } 768 769 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 770 struct cfg80211_chan_def *chandef) 771 { 772 struct ieee80211_local *local = wiphy_priv(wiphy); 773 struct ieee80211_sub_if_data *sdata; 774 int ret = 0; 775 776 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 777 return 0; 778 779 mutex_lock(&local->mtx); 780 if (local->use_chanctx) { 781 sdata = rtnl_dereference(local->monitor_sdata); 782 if (sdata) { 783 ieee80211_vif_release_channel(sdata); 784 ret = ieee80211_vif_use_channel(sdata, chandef, 785 IEEE80211_CHANCTX_EXCLUSIVE); 786 } 787 } else if (local->open_count == local->monitors) { 788 local->_oper_chandef = *chandef; 789 ieee80211_hw_config(local, 0); 790 } 791 792 if (ret == 0) 793 local->monitor_chandef = *chandef; 794 mutex_unlock(&local->mtx); 795 796 return ret; 797 } 798 799 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 800 const u8 *resp, size_t resp_len, 801 const struct ieee80211_csa_settings *csa) 802 { 803 struct probe_resp *new, *old; 804 805 if (!resp || !resp_len) 806 return 1; 807 808 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 809 810 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 811 if (!new) 812 return -ENOMEM; 813 814 new->len = resp_len; 815 memcpy(new->data, resp, resp_len); 816 817 if (csa) 818 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp, 819 csa->n_counter_offsets_presp * 820 sizeof(new->csa_counter_offsets[0])); 821 822 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 823 if (old) 824 kfree_rcu(old, rcu_head); 825 826 return 0; 827 } 828 829 static int ieee80211_set_ftm_responder_params( 830 struct ieee80211_sub_if_data *sdata, 831 const u8 *lci, size_t lci_len, 832 const u8 *civicloc, size_t civicloc_len) 833 { 834 struct ieee80211_ftm_responder_params *new, *old; 835 struct ieee80211_bss_conf *bss_conf; 836 u8 *pos; 837 int len; 838 839 if (!lci_len && !civicloc_len) 840 return 0; 841 842 bss_conf = &sdata->vif.bss_conf; 843 old = bss_conf->ftmr_params; 844 len = lci_len + civicloc_len; 845 846 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 847 if (!new) 848 return -ENOMEM; 849 850 pos = (u8 *)(new + 1); 851 if (lci_len) { 852 new->lci_len = lci_len; 853 new->lci = pos; 854 memcpy(pos, lci, lci_len); 855 pos += lci_len; 856 } 857 858 if (civicloc_len) { 859 new->civicloc_len = civicloc_len; 860 new->civicloc = pos; 861 memcpy(pos, civicloc, civicloc_len); 862 pos += civicloc_len; 863 } 864 865 bss_conf->ftmr_params = new; 866 kfree(old); 867 868 return 0; 869 } 870 871 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 872 struct cfg80211_beacon_data *params, 873 const struct ieee80211_csa_settings *csa) 874 { 875 struct beacon_data *new, *old; 876 int new_head_len, new_tail_len; 877 int size, err; 878 u32 changed = BSS_CHANGED_BEACON; 879 880 old = sdata_dereference(sdata->u.ap.beacon, sdata); 881 882 883 /* Need to have a beacon head if we don't have one yet */ 884 if (!params->head && !old) 885 return -EINVAL; 886 887 /* new or old head? */ 888 if (params->head) 889 new_head_len = params->head_len; 890 else 891 new_head_len = old->head_len; 892 893 /* new or old tail? */ 894 if (params->tail || !old) 895 /* params->tail_len will be zero for !params->tail */ 896 new_tail_len = params->tail_len; 897 else 898 new_tail_len = old->tail_len; 899 900 size = sizeof(*new) + new_head_len + new_tail_len; 901 902 new = kzalloc(size, GFP_KERNEL); 903 if (!new) 904 return -ENOMEM; 905 906 /* start filling the new info now */ 907 908 /* 909 * pointers go into the block we allocated, 910 * memory is | beacon_data | head | tail | 911 */ 912 new->head = ((u8 *) new) + sizeof(*new); 913 new->tail = new->head + new_head_len; 914 new->head_len = new_head_len; 915 new->tail_len = new_tail_len; 916 917 if (csa) { 918 new->csa_current_counter = csa->count; 919 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon, 920 csa->n_counter_offsets_beacon * 921 sizeof(new->csa_counter_offsets[0])); 922 } 923 924 /* copy in head */ 925 if (params->head) 926 memcpy(new->head, params->head, new_head_len); 927 else 928 memcpy(new->head, old->head, new_head_len); 929 930 /* copy in optional tail */ 931 if (params->tail) 932 memcpy(new->tail, params->tail, new_tail_len); 933 else 934 if (old) 935 memcpy(new->tail, old->tail, new_tail_len); 936 937 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 938 params->probe_resp_len, csa); 939 if (err < 0) { 940 kfree(new); 941 return err; 942 } 943 if (err == 0) 944 changed |= BSS_CHANGED_AP_PROBE_RESP; 945 946 if (params->ftm_responder != -1) { 947 sdata->vif.bss_conf.ftm_responder = params->ftm_responder; 948 err = ieee80211_set_ftm_responder_params(sdata, 949 params->lci, 950 params->lci_len, 951 params->civicloc, 952 params->civicloc_len); 953 954 if (err < 0) { 955 kfree(new); 956 return err; 957 } 958 959 changed |= BSS_CHANGED_FTM_RESPONDER; 960 } 961 962 rcu_assign_pointer(sdata->u.ap.beacon, new); 963 964 if (old) 965 kfree_rcu(old, rcu_head); 966 967 return changed; 968 } 969 970 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 971 struct cfg80211_ap_settings *params) 972 { 973 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 974 struct ieee80211_local *local = sdata->local; 975 struct beacon_data *old; 976 struct ieee80211_sub_if_data *vlan; 977 u32 changed = BSS_CHANGED_BEACON_INT | 978 BSS_CHANGED_BEACON_ENABLED | 979 BSS_CHANGED_BEACON | 980 BSS_CHANGED_SSID | 981 BSS_CHANGED_P2P_PS | 982 BSS_CHANGED_TXPOWER | 983 BSS_CHANGED_TWT | 984 BSS_CHANGED_HE_OBSS_PD | 985 BSS_CHANGED_HE_BSS_COLOR; 986 int err; 987 int prev_beacon_int; 988 989 old = sdata_dereference(sdata->u.ap.beacon, sdata); 990 if (old) 991 return -EALREADY; 992 993 if (params->smps_mode != NL80211_SMPS_OFF) 994 return -ENOTSUPP; 995 996 sdata->smps_mode = IEEE80211_SMPS_OFF; 997 998 sdata->needed_rx_chains = sdata->local->rx_chains; 999 1000 prev_beacon_int = sdata->vif.bss_conf.beacon_int; 1001 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 1002 1003 if (params->he_cap) 1004 sdata->vif.bss_conf.he_support = true; 1005 1006 mutex_lock(&local->mtx); 1007 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 1008 IEEE80211_CHANCTX_SHARED); 1009 if (!err) 1010 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 1011 mutex_unlock(&local->mtx); 1012 if (err) { 1013 sdata->vif.bss_conf.beacon_int = prev_beacon_int; 1014 return err; 1015 } 1016 1017 /* 1018 * Apply control port protocol, this allows us to 1019 * not encrypt dynamic WEP control frames. 1020 */ 1021 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1022 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1023 sdata->control_port_over_nl80211 = 1024 params->crypto.control_port_over_nl80211; 1025 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 1026 ¶ms->crypto, 1027 sdata->vif.type); 1028 1029 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1030 vlan->control_port_protocol = 1031 params->crypto.control_port_ethertype; 1032 vlan->control_port_no_encrypt = 1033 params->crypto.control_port_no_encrypt; 1034 vlan->control_port_over_nl80211 = 1035 params->crypto.control_port_over_nl80211; 1036 vlan->encrypt_headroom = 1037 ieee80211_cs_headroom(sdata->local, 1038 ¶ms->crypto, 1039 vlan->vif.type); 1040 } 1041 1042 sdata->vif.bss_conf.dtim_period = params->dtim_period; 1043 sdata->vif.bss_conf.enable_beacon = true; 1044 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 1045 sdata->vif.bss_conf.twt_responder = params->twt_responder; 1046 memcpy(&sdata->vif.bss_conf.he_obss_pd, ¶ms->he_obss_pd, 1047 sizeof(struct ieee80211_he_obss_pd)); 1048 memcpy(&sdata->vif.bss_conf.he_bss_color, ¶ms->he_bss_color, 1049 sizeof(struct ieee80211_he_bss_color)); 1050 1051 sdata->vif.bss_conf.ssid_len = params->ssid_len; 1052 if (params->ssid_len) 1053 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 1054 params->ssid_len); 1055 sdata->vif.bss_conf.hidden_ssid = 1056 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1057 1058 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 1059 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 1060 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 1061 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1062 if (params->p2p_opp_ps) 1063 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1064 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1065 1066 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); 1067 if (err < 0) { 1068 ieee80211_vif_release_channel(sdata); 1069 return err; 1070 } 1071 changed |= err; 1072 1073 err = drv_start_ap(sdata->local, sdata); 1074 if (err) { 1075 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1076 1077 if (old) 1078 kfree_rcu(old, rcu_head); 1079 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1080 ieee80211_vif_release_channel(sdata); 1081 return err; 1082 } 1083 1084 ieee80211_recalc_dtim(local, sdata); 1085 ieee80211_bss_info_change_notify(sdata, changed); 1086 1087 netif_carrier_on(dev); 1088 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1089 netif_carrier_on(vlan->dev); 1090 1091 return 0; 1092 } 1093 1094 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1095 struct cfg80211_beacon_data *params) 1096 { 1097 struct ieee80211_sub_if_data *sdata; 1098 struct beacon_data *old; 1099 int err; 1100 1101 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1102 sdata_assert_lock(sdata); 1103 1104 /* don't allow changing the beacon while CSA is in place - offset 1105 * of channel switch counter may change 1106 */ 1107 if (sdata->vif.csa_active) 1108 return -EBUSY; 1109 1110 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1111 if (!old) 1112 return -ENOENT; 1113 1114 err = ieee80211_assign_beacon(sdata, params, NULL); 1115 if (err < 0) 1116 return err; 1117 ieee80211_bss_info_change_notify(sdata, err); 1118 return 0; 1119 } 1120 1121 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1122 { 1123 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1124 struct ieee80211_sub_if_data *vlan; 1125 struct ieee80211_local *local = sdata->local; 1126 struct beacon_data *old_beacon; 1127 struct probe_resp *old_probe_resp; 1128 struct cfg80211_chan_def chandef; 1129 1130 sdata_assert_lock(sdata); 1131 1132 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1133 if (!old_beacon) 1134 return -ENOENT; 1135 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1136 1137 /* abort any running channel switch */ 1138 mutex_lock(&local->mtx); 1139 sdata->vif.csa_active = false; 1140 if (sdata->csa_block_tx) { 1141 ieee80211_wake_vif_queues(local, sdata, 1142 IEEE80211_QUEUE_STOP_REASON_CSA); 1143 sdata->csa_block_tx = false; 1144 } 1145 1146 mutex_unlock(&local->mtx); 1147 1148 kfree(sdata->u.ap.next_beacon); 1149 sdata->u.ap.next_beacon = NULL; 1150 1151 /* turn off carrier for this interface and dependent VLANs */ 1152 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1153 netif_carrier_off(vlan->dev); 1154 netif_carrier_off(dev); 1155 1156 /* remove beacon and probe response */ 1157 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1158 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1159 kfree_rcu(old_beacon, rcu_head); 1160 if (old_probe_resp) 1161 kfree_rcu(old_probe_resp, rcu_head); 1162 1163 kfree(sdata->vif.bss_conf.ftmr_params); 1164 sdata->vif.bss_conf.ftmr_params = NULL; 1165 1166 __sta_info_flush(sdata, true); 1167 ieee80211_free_keys(sdata, true); 1168 1169 sdata->vif.bss_conf.enable_beacon = false; 1170 sdata->vif.bss_conf.ssid_len = 0; 1171 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1172 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1173 1174 if (sdata->wdev.cac_started) { 1175 chandef = sdata->vif.bss_conf.chandef; 1176 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1177 cfg80211_cac_event(sdata->dev, &chandef, 1178 NL80211_RADAR_CAC_ABORTED, 1179 GFP_KERNEL); 1180 } 1181 1182 drv_stop_ap(sdata->local, sdata); 1183 1184 /* free all potentially still buffered bcast frames */ 1185 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1186 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1187 1188 mutex_lock(&local->mtx); 1189 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1190 ieee80211_vif_release_channel(sdata); 1191 mutex_unlock(&local->mtx); 1192 1193 return 0; 1194 } 1195 1196 static int sta_apply_auth_flags(struct ieee80211_local *local, 1197 struct sta_info *sta, 1198 u32 mask, u32 set) 1199 { 1200 int ret; 1201 1202 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1203 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1204 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1205 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1206 if (ret) 1207 return ret; 1208 } 1209 1210 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1211 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1212 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1213 /* 1214 * When peer becomes associated, init rate control as 1215 * well. Some drivers require rate control initialized 1216 * before drv_sta_state() is called. 1217 */ 1218 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1219 rate_control_rate_init(sta); 1220 1221 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1222 if (ret) 1223 return ret; 1224 } 1225 1226 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1227 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1228 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1229 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1230 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1231 else 1232 ret = 0; 1233 if (ret) 1234 return ret; 1235 } 1236 1237 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1238 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1239 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1240 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1241 if (ret) 1242 return ret; 1243 } 1244 1245 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1246 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1247 test_sta_flag(sta, WLAN_STA_AUTH)) { 1248 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1249 if (ret) 1250 return ret; 1251 } 1252 1253 return 0; 1254 } 1255 1256 static void sta_apply_mesh_params(struct ieee80211_local *local, 1257 struct sta_info *sta, 1258 struct station_parameters *params) 1259 { 1260 #ifdef CONFIG_MAC80211_MESH 1261 struct ieee80211_sub_if_data *sdata = sta->sdata; 1262 u32 changed = 0; 1263 1264 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1265 switch (params->plink_state) { 1266 case NL80211_PLINK_ESTAB: 1267 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1268 changed = mesh_plink_inc_estab_count(sdata); 1269 sta->mesh->plink_state = params->plink_state; 1270 sta->mesh->aid = params->peer_aid; 1271 1272 ieee80211_mps_sta_status_update(sta); 1273 changed |= ieee80211_mps_set_sta_local_pm(sta, 1274 sdata->u.mesh.mshcfg.power_mode); 1275 1276 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1277 /* init at low value */ 1278 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1279 1280 break; 1281 case NL80211_PLINK_LISTEN: 1282 case NL80211_PLINK_BLOCKED: 1283 case NL80211_PLINK_OPN_SNT: 1284 case NL80211_PLINK_OPN_RCVD: 1285 case NL80211_PLINK_CNF_RCVD: 1286 case NL80211_PLINK_HOLDING: 1287 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1288 changed = mesh_plink_dec_estab_count(sdata); 1289 sta->mesh->plink_state = params->plink_state; 1290 1291 ieee80211_mps_sta_status_update(sta); 1292 changed |= ieee80211_mps_set_sta_local_pm(sta, 1293 NL80211_MESH_POWER_UNKNOWN); 1294 break; 1295 default: 1296 /* nothing */ 1297 break; 1298 } 1299 } 1300 1301 switch (params->plink_action) { 1302 case NL80211_PLINK_ACTION_NO_ACTION: 1303 /* nothing */ 1304 break; 1305 case NL80211_PLINK_ACTION_OPEN: 1306 changed |= mesh_plink_open(sta); 1307 break; 1308 case NL80211_PLINK_ACTION_BLOCK: 1309 changed |= mesh_plink_block(sta); 1310 break; 1311 } 1312 1313 if (params->local_pm) 1314 changed |= ieee80211_mps_set_sta_local_pm(sta, 1315 params->local_pm); 1316 1317 ieee80211_mbss_info_change_notify(sdata, changed); 1318 #endif 1319 } 1320 1321 static int sta_apply_parameters(struct ieee80211_local *local, 1322 struct sta_info *sta, 1323 struct station_parameters *params) 1324 { 1325 int ret = 0; 1326 struct ieee80211_supported_band *sband; 1327 struct ieee80211_sub_if_data *sdata = sta->sdata; 1328 u32 mask, set; 1329 1330 sband = ieee80211_get_sband(sdata); 1331 if (!sband) 1332 return -EINVAL; 1333 1334 mask = params->sta_flags_mask; 1335 set = params->sta_flags_set; 1336 1337 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1338 /* 1339 * In mesh mode, ASSOCIATED isn't part of the nl80211 1340 * API but must follow AUTHENTICATED for driver state. 1341 */ 1342 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1343 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1344 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1345 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1346 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1347 /* 1348 * TDLS -- everything follows authorized, but 1349 * only becoming authorized is possible, not 1350 * going back 1351 */ 1352 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1353 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1354 BIT(NL80211_STA_FLAG_ASSOCIATED); 1355 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1356 BIT(NL80211_STA_FLAG_ASSOCIATED); 1357 } 1358 } 1359 1360 if (mask & BIT(NL80211_STA_FLAG_WME) && 1361 local->hw.queues >= IEEE80211_NUM_ACS) 1362 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1363 1364 /* auth flags will be set later for TDLS, 1365 * and for unassociated stations that move to assocaited */ 1366 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1367 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1368 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1369 ret = sta_apply_auth_flags(local, sta, mask, set); 1370 if (ret) 1371 return ret; 1372 } 1373 1374 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1375 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1376 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1377 else 1378 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1379 } 1380 1381 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1382 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1383 if (set & BIT(NL80211_STA_FLAG_MFP)) 1384 set_sta_flag(sta, WLAN_STA_MFP); 1385 else 1386 clear_sta_flag(sta, WLAN_STA_MFP); 1387 } 1388 1389 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1390 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1391 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1392 else 1393 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1394 } 1395 1396 /* mark TDLS channel switch support, if the AP allows it */ 1397 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1398 !sdata->u.mgd.tdls_chan_switch_prohibited && 1399 params->ext_capab_len >= 4 && 1400 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1401 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1402 1403 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1404 !sdata->u.mgd.tdls_wider_bw_prohibited && 1405 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1406 params->ext_capab_len >= 8 && 1407 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1408 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1409 1410 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1411 sta->sta.uapsd_queues = params->uapsd_queues; 1412 sta->sta.max_sp = params->max_sp; 1413 } 1414 1415 /* The sender might not have sent the last bit, consider it to be 0 */ 1416 if (params->ext_capab_len >= 8) { 1417 u8 val = (params->ext_capab[7] & 1418 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1419 1420 /* we did get all the bits, take the MSB as well */ 1421 if (params->ext_capab_len >= 9) { 1422 u8 val_msb = params->ext_capab[8] & 1423 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1424 val_msb <<= 1; 1425 val |= val_msb; 1426 } 1427 1428 switch (val) { 1429 case 1: 1430 sta->sta.max_amsdu_subframes = 32; 1431 break; 1432 case 2: 1433 sta->sta.max_amsdu_subframes = 16; 1434 break; 1435 case 3: 1436 sta->sta.max_amsdu_subframes = 8; 1437 break; 1438 default: 1439 sta->sta.max_amsdu_subframes = 0; 1440 } 1441 } 1442 1443 /* 1444 * cfg80211 validates this (1-2007) and allows setting the AID 1445 * only when creating a new station entry 1446 */ 1447 if (params->aid) 1448 sta->sta.aid = params->aid; 1449 1450 /* 1451 * Some of the following updates would be racy if called on an 1452 * existing station, via ieee80211_change_station(). However, 1453 * all such changes are rejected by cfg80211 except for updates 1454 * changing the supported rates on an existing but not yet used 1455 * TDLS peer. 1456 */ 1457 1458 if (params->listen_interval >= 0) 1459 sta->listen_interval = params->listen_interval; 1460 1461 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) { 1462 sta->sta.txpwr.type = params->txpwr.type; 1463 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1464 sta->sta.txpwr.power = params->txpwr.power; 1465 ret = drv_sta_set_txpwr(local, sdata, sta); 1466 if (ret) 1467 return ret; 1468 } 1469 1470 if (params->supported_rates && params->supported_rates_len) { 1471 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1472 sband, params->supported_rates, 1473 params->supported_rates_len, 1474 &sta->sta.supp_rates[sband->band]); 1475 } 1476 1477 if (params->ht_capa) 1478 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1479 params->ht_capa, sta); 1480 1481 /* VHT can override some HT caps such as the A-MSDU max length */ 1482 if (params->vht_capa) 1483 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1484 params->vht_capa, sta); 1485 1486 if (params->he_capa) 1487 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1488 (void *)params->he_capa, 1489 params->he_capa_len, sta); 1490 1491 if (params->opmode_notif_used) { 1492 /* returned value is only needed for rc update, but the 1493 * rc isn't initialized here yet, so ignore it 1494 */ 1495 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1496 sband->band); 1497 } 1498 1499 if (params->support_p2p_ps >= 0) 1500 sta->sta.support_p2p_ps = params->support_p2p_ps; 1501 1502 if (ieee80211_vif_is_mesh(&sdata->vif)) 1503 sta_apply_mesh_params(local, sta, params); 1504 1505 if (params->airtime_weight) 1506 sta->airtime_weight = params->airtime_weight; 1507 1508 /* set the STA state after all sta info from usermode has been set */ 1509 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1510 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1511 ret = sta_apply_auth_flags(local, sta, mask, set); 1512 if (ret) 1513 return ret; 1514 } 1515 1516 return 0; 1517 } 1518 1519 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1520 const u8 *mac, 1521 struct station_parameters *params) 1522 { 1523 struct ieee80211_local *local = wiphy_priv(wiphy); 1524 struct sta_info *sta; 1525 struct ieee80211_sub_if_data *sdata; 1526 int err; 1527 1528 if (params->vlan) { 1529 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1530 1531 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1532 sdata->vif.type != NL80211_IFTYPE_AP) 1533 return -EINVAL; 1534 } else 1535 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1536 1537 if (ether_addr_equal(mac, sdata->vif.addr)) 1538 return -EINVAL; 1539 1540 if (!is_valid_ether_addr(mac)) 1541 return -EINVAL; 1542 1543 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 1544 sdata->vif.type == NL80211_IFTYPE_STATION && 1545 !sdata->u.mgd.associated) 1546 return -EINVAL; 1547 1548 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1549 if (!sta) 1550 return -ENOMEM; 1551 1552 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1553 sta->sta.tdls = true; 1554 1555 err = sta_apply_parameters(local, sta, params); 1556 if (err) { 1557 sta_info_free(local, sta); 1558 return err; 1559 } 1560 1561 /* 1562 * for TDLS and for unassociated station, rate control should be 1563 * initialized only when rates are known and station is marked 1564 * authorized/associated 1565 */ 1566 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1567 test_sta_flag(sta, WLAN_STA_ASSOC)) 1568 rate_control_rate_init(sta); 1569 1570 err = sta_info_insert_rcu(sta); 1571 if (err) { 1572 rcu_read_unlock(); 1573 return err; 1574 } 1575 1576 rcu_read_unlock(); 1577 1578 return 0; 1579 } 1580 1581 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1582 struct station_del_parameters *params) 1583 { 1584 struct ieee80211_sub_if_data *sdata; 1585 1586 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1587 1588 if (params->mac) 1589 return sta_info_destroy_addr_bss(sdata, params->mac); 1590 1591 sta_info_flush(sdata); 1592 return 0; 1593 } 1594 1595 static int ieee80211_change_station(struct wiphy *wiphy, 1596 struct net_device *dev, const u8 *mac, 1597 struct station_parameters *params) 1598 { 1599 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1600 struct ieee80211_local *local = wiphy_priv(wiphy); 1601 struct sta_info *sta; 1602 struct ieee80211_sub_if_data *vlansdata; 1603 enum cfg80211_station_type statype; 1604 int err; 1605 1606 mutex_lock(&local->sta_mtx); 1607 1608 sta = sta_info_get_bss(sdata, mac); 1609 if (!sta) { 1610 err = -ENOENT; 1611 goto out_err; 1612 } 1613 1614 switch (sdata->vif.type) { 1615 case NL80211_IFTYPE_MESH_POINT: 1616 if (sdata->u.mesh.user_mpm) 1617 statype = CFG80211_STA_MESH_PEER_USER; 1618 else 1619 statype = CFG80211_STA_MESH_PEER_KERNEL; 1620 break; 1621 case NL80211_IFTYPE_ADHOC: 1622 statype = CFG80211_STA_IBSS; 1623 break; 1624 case NL80211_IFTYPE_STATION: 1625 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1626 statype = CFG80211_STA_AP_STA; 1627 break; 1628 } 1629 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1630 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1631 else 1632 statype = CFG80211_STA_TDLS_PEER_SETUP; 1633 break; 1634 case NL80211_IFTYPE_AP: 1635 case NL80211_IFTYPE_AP_VLAN: 1636 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1637 statype = CFG80211_STA_AP_CLIENT; 1638 else 1639 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1640 break; 1641 default: 1642 err = -EOPNOTSUPP; 1643 goto out_err; 1644 } 1645 1646 err = cfg80211_check_station_change(wiphy, params, statype); 1647 if (err) 1648 goto out_err; 1649 1650 if (params->vlan && params->vlan != sta->sdata->dev) { 1651 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1652 1653 if (params->vlan->ieee80211_ptr->use_4addr) { 1654 if (vlansdata->u.vlan.sta) { 1655 err = -EBUSY; 1656 goto out_err; 1657 } 1658 1659 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1660 __ieee80211_check_fast_rx_iface(vlansdata); 1661 } 1662 1663 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1664 sta->sdata->u.vlan.sta) 1665 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1666 1667 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1668 ieee80211_vif_dec_num_mcast(sta->sdata); 1669 1670 sta->sdata = vlansdata; 1671 ieee80211_check_fast_xmit(sta); 1672 1673 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 1674 ieee80211_vif_inc_num_mcast(sta->sdata); 1675 cfg80211_send_layer2_update(sta->sdata->dev, 1676 sta->sta.addr); 1677 } 1678 } 1679 1680 err = sta_apply_parameters(local, sta, params); 1681 if (err) 1682 goto out_err; 1683 1684 mutex_unlock(&local->sta_mtx); 1685 1686 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1687 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1688 ieee80211_recalc_ps(local); 1689 ieee80211_recalc_ps_vif(sdata); 1690 } 1691 1692 return 0; 1693 out_err: 1694 mutex_unlock(&local->sta_mtx); 1695 return err; 1696 } 1697 1698 #ifdef CONFIG_MAC80211_MESH 1699 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1700 const u8 *dst, const u8 *next_hop) 1701 { 1702 struct ieee80211_sub_if_data *sdata; 1703 struct mesh_path *mpath; 1704 struct sta_info *sta; 1705 1706 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1707 1708 rcu_read_lock(); 1709 sta = sta_info_get(sdata, next_hop); 1710 if (!sta) { 1711 rcu_read_unlock(); 1712 return -ENOENT; 1713 } 1714 1715 mpath = mesh_path_add(sdata, dst); 1716 if (IS_ERR(mpath)) { 1717 rcu_read_unlock(); 1718 return PTR_ERR(mpath); 1719 } 1720 1721 mesh_path_fix_nexthop(mpath, sta); 1722 1723 rcu_read_unlock(); 1724 return 0; 1725 } 1726 1727 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1728 const u8 *dst) 1729 { 1730 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1731 1732 if (dst) 1733 return mesh_path_del(sdata, dst); 1734 1735 mesh_path_flush_by_iface(sdata); 1736 return 0; 1737 } 1738 1739 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1740 const u8 *dst, const u8 *next_hop) 1741 { 1742 struct ieee80211_sub_if_data *sdata; 1743 struct mesh_path *mpath; 1744 struct sta_info *sta; 1745 1746 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1747 1748 rcu_read_lock(); 1749 1750 sta = sta_info_get(sdata, next_hop); 1751 if (!sta) { 1752 rcu_read_unlock(); 1753 return -ENOENT; 1754 } 1755 1756 mpath = mesh_path_lookup(sdata, dst); 1757 if (!mpath) { 1758 rcu_read_unlock(); 1759 return -ENOENT; 1760 } 1761 1762 mesh_path_fix_nexthop(mpath, sta); 1763 1764 rcu_read_unlock(); 1765 return 0; 1766 } 1767 1768 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1769 struct mpath_info *pinfo) 1770 { 1771 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1772 1773 if (next_hop_sta) 1774 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1775 else 1776 eth_zero_addr(next_hop); 1777 1778 memset(pinfo, 0, sizeof(*pinfo)); 1779 1780 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1781 1782 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1783 MPATH_INFO_SN | 1784 MPATH_INFO_METRIC | 1785 MPATH_INFO_EXPTIME | 1786 MPATH_INFO_DISCOVERY_TIMEOUT | 1787 MPATH_INFO_DISCOVERY_RETRIES | 1788 MPATH_INFO_FLAGS | 1789 MPATH_INFO_HOP_COUNT | 1790 MPATH_INFO_PATH_CHANGE; 1791 1792 pinfo->frame_qlen = mpath->frame_queue.qlen; 1793 pinfo->sn = mpath->sn; 1794 pinfo->metric = mpath->metric; 1795 if (time_before(jiffies, mpath->exp_time)) 1796 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1797 pinfo->discovery_timeout = 1798 jiffies_to_msecs(mpath->discovery_timeout); 1799 pinfo->discovery_retries = mpath->discovery_retries; 1800 if (mpath->flags & MESH_PATH_ACTIVE) 1801 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1802 if (mpath->flags & MESH_PATH_RESOLVING) 1803 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1804 if (mpath->flags & MESH_PATH_SN_VALID) 1805 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1806 if (mpath->flags & MESH_PATH_FIXED) 1807 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1808 if (mpath->flags & MESH_PATH_RESOLVED) 1809 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1810 pinfo->hop_count = mpath->hop_count; 1811 pinfo->path_change_count = mpath->path_change_count; 1812 } 1813 1814 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1815 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1816 1817 { 1818 struct ieee80211_sub_if_data *sdata; 1819 struct mesh_path *mpath; 1820 1821 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1822 1823 rcu_read_lock(); 1824 mpath = mesh_path_lookup(sdata, dst); 1825 if (!mpath) { 1826 rcu_read_unlock(); 1827 return -ENOENT; 1828 } 1829 memcpy(dst, mpath->dst, ETH_ALEN); 1830 mpath_set_pinfo(mpath, next_hop, pinfo); 1831 rcu_read_unlock(); 1832 return 0; 1833 } 1834 1835 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1836 int idx, u8 *dst, u8 *next_hop, 1837 struct mpath_info *pinfo) 1838 { 1839 struct ieee80211_sub_if_data *sdata; 1840 struct mesh_path *mpath; 1841 1842 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1843 1844 rcu_read_lock(); 1845 mpath = mesh_path_lookup_by_idx(sdata, idx); 1846 if (!mpath) { 1847 rcu_read_unlock(); 1848 return -ENOENT; 1849 } 1850 memcpy(dst, mpath->dst, ETH_ALEN); 1851 mpath_set_pinfo(mpath, next_hop, pinfo); 1852 rcu_read_unlock(); 1853 return 0; 1854 } 1855 1856 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1857 struct mpath_info *pinfo) 1858 { 1859 memset(pinfo, 0, sizeof(*pinfo)); 1860 memcpy(mpp, mpath->mpp, ETH_ALEN); 1861 1862 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1863 } 1864 1865 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1866 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1867 1868 { 1869 struct ieee80211_sub_if_data *sdata; 1870 struct mesh_path *mpath; 1871 1872 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1873 1874 rcu_read_lock(); 1875 mpath = mpp_path_lookup(sdata, dst); 1876 if (!mpath) { 1877 rcu_read_unlock(); 1878 return -ENOENT; 1879 } 1880 memcpy(dst, mpath->dst, ETH_ALEN); 1881 mpp_set_pinfo(mpath, mpp, pinfo); 1882 rcu_read_unlock(); 1883 return 0; 1884 } 1885 1886 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1887 int idx, u8 *dst, u8 *mpp, 1888 struct mpath_info *pinfo) 1889 { 1890 struct ieee80211_sub_if_data *sdata; 1891 struct mesh_path *mpath; 1892 1893 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1894 1895 rcu_read_lock(); 1896 mpath = mpp_path_lookup_by_idx(sdata, idx); 1897 if (!mpath) { 1898 rcu_read_unlock(); 1899 return -ENOENT; 1900 } 1901 memcpy(dst, mpath->dst, ETH_ALEN); 1902 mpp_set_pinfo(mpath, mpp, pinfo); 1903 rcu_read_unlock(); 1904 return 0; 1905 } 1906 1907 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1908 struct net_device *dev, 1909 struct mesh_config *conf) 1910 { 1911 struct ieee80211_sub_if_data *sdata; 1912 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1913 1914 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1915 return 0; 1916 } 1917 1918 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1919 { 1920 return (mask >> (parm-1)) & 0x1; 1921 } 1922 1923 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1924 const struct mesh_setup *setup) 1925 { 1926 u8 *new_ie; 1927 const u8 *old_ie; 1928 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1929 struct ieee80211_sub_if_data, u.mesh); 1930 1931 /* allocate information elements */ 1932 new_ie = NULL; 1933 old_ie = ifmsh->ie; 1934 1935 if (setup->ie_len) { 1936 new_ie = kmemdup(setup->ie, setup->ie_len, 1937 GFP_KERNEL); 1938 if (!new_ie) 1939 return -ENOMEM; 1940 } 1941 ifmsh->ie_len = setup->ie_len; 1942 ifmsh->ie = new_ie; 1943 kfree(old_ie); 1944 1945 /* now copy the rest of the setup parameters */ 1946 ifmsh->mesh_id_len = setup->mesh_id_len; 1947 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1948 ifmsh->mesh_sp_id = setup->sync_method; 1949 ifmsh->mesh_pp_id = setup->path_sel_proto; 1950 ifmsh->mesh_pm_id = setup->path_metric; 1951 ifmsh->user_mpm = setup->user_mpm; 1952 ifmsh->mesh_auth_id = setup->auth_id; 1953 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1954 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 1955 if (setup->is_authenticated) 1956 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1957 if (setup->is_secure) 1958 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1959 1960 /* mcast rate setting in Mesh Node */ 1961 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1962 sizeof(setup->mcast_rate)); 1963 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1964 1965 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1966 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1967 1968 return 0; 1969 } 1970 1971 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1972 struct net_device *dev, u32 mask, 1973 const struct mesh_config *nconf) 1974 { 1975 struct mesh_config *conf; 1976 struct ieee80211_sub_if_data *sdata; 1977 struct ieee80211_if_mesh *ifmsh; 1978 1979 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1980 ifmsh = &sdata->u.mesh; 1981 1982 /* Set the config options which we are interested in setting */ 1983 conf = &(sdata->u.mesh.mshcfg); 1984 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 1985 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 1986 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 1987 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 1988 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 1989 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 1990 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 1991 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 1992 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 1993 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 1994 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 1995 conf->dot11MeshTTL = nconf->dot11MeshTTL; 1996 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 1997 conf->element_ttl = nconf->element_ttl; 1998 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 1999 if (ifmsh->user_mpm) 2000 return -EBUSY; 2001 conf->auto_open_plinks = nconf->auto_open_plinks; 2002 } 2003 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2004 conf->dot11MeshNbrOffsetMaxNeighbor = 2005 nconf->dot11MeshNbrOffsetMaxNeighbor; 2006 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2007 conf->dot11MeshHWMPmaxPREQretries = 2008 nconf->dot11MeshHWMPmaxPREQretries; 2009 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2010 conf->path_refresh_time = nconf->path_refresh_time; 2011 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2012 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2013 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2014 conf->dot11MeshHWMPactivePathTimeout = 2015 nconf->dot11MeshHWMPactivePathTimeout; 2016 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2017 conf->dot11MeshHWMPpreqMinInterval = 2018 nconf->dot11MeshHWMPpreqMinInterval; 2019 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2020 conf->dot11MeshHWMPperrMinInterval = 2021 nconf->dot11MeshHWMPperrMinInterval; 2022 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2023 mask)) 2024 conf->dot11MeshHWMPnetDiameterTraversalTime = 2025 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2026 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2027 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2028 ieee80211_mesh_root_setup(ifmsh); 2029 } 2030 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2031 /* our current gate announcement implementation rides on root 2032 * announcements, so require this ifmsh to also be a root node 2033 * */ 2034 if (nconf->dot11MeshGateAnnouncementProtocol && 2035 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2036 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2037 ieee80211_mesh_root_setup(ifmsh); 2038 } 2039 conf->dot11MeshGateAnnouncementProtocol = 2040 nconf->dot11MeshGateAnnouncementProtocol; 2041 } 2042 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2043 conf->dot11MeshHWMPRannInterval = 2044 nconf->dot11MeshHWMPRannInterval; 2045 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2046 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2047 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2048 /* our RSSI threshold implementation is supported only for 2049 * devices that report signal in dBm. 2050 */ 2051 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2052 return -ENOTSUPP; 2053 conf->rssi_threshold = nconf->rssi_threshold; 2054 } 2055 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2056 conf->ht_opmode = nconf->ht_opmode; 2057 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2058 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2059 } 2060 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2061 conf->dot11MeshHWMPactivePathToRootTimeout = 2062 nconf->dot11MeshHWMPactivePathToRootTimeout; 2063 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2064 conf->dot11MeshHWMProotInterval = 2065 nconf->dot11MeshHWMProotInterval; 2066 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2067 conf->dot11MeshHWMPconfirmationInterval = 2068 nconf->dot11MeshHWMPconfirmationInterval; 2069 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2070 conf->power_mode = nconf->power_mode; 2071 ieee80211_mps_local_status_update(sdata); 2072 } 2073 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2074 conf->dot11MeshAwakeWindowDuration = 2075 nconf->dot11MeshAwakeWindowDuration; 2076 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2077 conf->plink_timeout = nconf->plink_timeout; 2078 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2079 conf->dot11MeshConnectedToMeshGate = 2080 nconf->dot11MeshConnectedToMeshGate; 2081 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2082 return 0; 2083 } 2084 2085 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2086 const struct mesh_config *conf, 2087 const struct mesh_setup *setup) 2088 { 2089 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2090 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2091 int err; 2092 2093 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2094 err = copy_mesh_setup(ifmsh, setup); 2095 if (err) 2096 return err; 2097 2098 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2099 2100 /* can mesh use other SMPS modes? */ 2101 sdata->smps_mode = IEEE80211_SMPS_OFF; 2102 sdata->needed_rx_chains = sdata->local->rx_chains; 2103 2104 mutex_lock(&sdata->local->mtx); 2105 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2106 IEEE80211_CHANCTX_SHARED); 2107 mutex_unlock(&sdata->local->mtx); 2108 if (err) 2109 return err; 2110 2111 return ieee80211_start_mesh(sdata); 2112 } 2113 2114 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2115 { 2116 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2117 2118 ieee80211_stop_mesh(sdata); 2119 mutex_lock(&sdata->local->mtx); 2120 ieee80211_vif_release_channel(sdata); 2121 mutex_unlock(&sdata->local->mtx); 2122 2123 return 0; 2124 } 2125 #endif 2126 2127 static int ieee80211_change_bss(struct wiphy *wiphy, 2128 struct net_device *dev, 2129 struct bss_parameters *params) 2130 { 2131 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2132 struct ieee80211_supported_band *sband; 2133 u32 changed = 0; 2134 2135 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2136 return -ENOENT; 2137 2138 sband = ieee80211_get_sband(sdata); 2139 if (!sband) 2140 return -EINVAL; 2141 2142 if (params->use_cts_prot >= 0) { 2143 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2144 changed |= BSS_CHANGED_ERP_CTS_PROT; 2145 } 2146 if (params->use_short_preamble >= 0) { 2147 sdata->vif.bss_conf.use_short_preamble = 2148 params->use_short_preamble; 2149 changed |= BSS_CHANGED_ERP_PREAMBLE; 2150 } 2151 2152 if (!sdata->vif.bss_conf.use_short_slot && 2153 sband->band == NL80211_BAND_5GHZ) { 2154 sdata->vif.bss_conf.use_short_slot = true; 2155 changed |= BSS_CHANGED_ERP_SLOT; 2156 } 2157 2158 if (params->use_short_slot_time >= 0) { 2159 sdata->vif.bss_conf.use_short_slot = 2160 params->use_short_slot_time; 2161 changed |= BSS_CHANGED_ERP_SLOT; 2162 } 2163 2164 if (params->basic_rates) { 2165 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2166 wiphy->bands[sband->band], 2167 params->basic_rates, 2168 params->basic_rates_len, 2169 &sdata->vif.bss_conf.basic_rates); 2170 changed |= BSS_CHANGED_BASIC_RATES; 2171 ieee80211_check_rate_mask(sdata); 2172 } 2173 2174 if (params->ap_isolate >= 0) { 2175 if (params->ap_isolate) 2176 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2177 else 2178 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2179 ieee80211_check_fast_rx_iface(sdata); 2180 } 2181 2182 if (params->ht_opmode >= 0) { 2183 sdata->vif.bss_conf.ht_operation_mode = 2184 (u16) params->ht_opmode; 2185 changed |= BSS_CHANGED_HT; 2186 } 2187 2188 if (params->p2p_ctwindow >= 0) { 2189 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2190 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2191 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2192 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2193 changed |= BSS_CHANGED_P2P_PS; 2194 } 2195 2196 if (params->p2p_opp_ps > 0) { 2197 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2198 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2199 changed |= BSS_CHANGED_P2P_PS; 2200 } else if (params->p2p_opp_ps == 0) { 2201 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2202 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2203 changed |= BSS_CHANGED_P2P_PS; 2204 } 2205 2206 ieee80211_bss_info_change_notify(sdata, changed); 2207 2208 return 0; 2209 } 2210 2211 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2212 struct net_device *dev, 2213 struct ieee80211_txq_params *params) 2214 { 2215 struct ieee80211_local *local = wiphy_priv(wiphy); 2216 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2217 struct ieee80211_tx_queue_params p; 2218 2219 if (!local->ops->conf_tx) 2220 return -EOPNOTSUPP; 2221 2222 if (local->hw.queues < IEEE80211_NUM_ACS) 2223 return -EOPNOTSUPP; 2224 2225 memset(&p, 0, sizeof(p)); 2226 p.aifs = params->aifs; 2227 p.cw_max = params->cwmax; 2228 p.cw_min = params->cwmin; 2229 p.txop = params->txop; 2230 2231 /* 2232 * Setting tx queue params disables u-apsd because it's only 2233 * called in master mode. 2234 */ 2235 p.uapsd = false; 2236 2237 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2238 2239 sdata->tx_conf[params->ac] = p; 2240 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2241 wiphy_debug(local->hw.wiphy, 2242 "failed to set TX queue parameters for AC %d\n", 2243 params->ac); 2244 return -EINVAL; 2245 } 2246 2247 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2248 2249 return 0; 2250 } 2251 2252 #ifdef CONFIG_PM 2253 static int ieee80211_suspend(struct wiphy *wiphy, 2254 struct cfg80211_wowlan *wowlan) 2255 { 2256 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2257 } 2258 2259 static int ieee80211_resume(struct wiphy *wiphy) 2260 { 2261 return __ieee80211_resume(wiphy_priv(wiphy)); 2262 } 2263 #else 2264 #define ieee80211_suspend NULL 2265 #define ieee80211_resume NULL 2266 #endif 2267 2268 static int ieee80211_scan(struct wiphy *wiphy, 2269 struct cfg80211_scan_request *req) 2270 { 2271 struct ieee80211_sub_if_data *sdata; 2272 2273 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2274 2275 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2276 case NL80211_IFTYPE_STATION: 2277 case NL80211_IFTYPE_ADHOC: 2278 case NL80211_IFTYPE_MESH_POINT: 2279 case NL80211_IFTYPE_P2P_CLIENT: 2280 case NL80211_IFTYPE_P2P_DEVICE: 2281 break; 2282 case NL80211_IFTYPE_P2P_GO: 2283 if (sdata->local->ops->hw_scan) 2284 break; 2285 /* 2286 * FIXME: implement NoA while scanning in software, 2287 * for now fall through to allow scanning only when 2288 * beaconing hasn't been configured yet 2289 */ 2290 /* fall through */ 2291 case NL80211_IFTYPE_AP: 2292 /* 2293 * If the scan has been forced (and the driver supports 2294 * forcing), don't care about being beaconing already. 2295 * This will create problems to the attached stations (e.g. all 2296 * the frames sent while scanning on other channel will be 2297 * lost) 2298 */ 2299 if (sdata->u.ap.beacon && 2300 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2301 !(req->flags & NL80211_SCAN_FLAG_AP))) 2302 return -EOPNOTSUPP; 2303 break; 2304 case NL80211_IFTYPE_NAN: 2305 default: 2306 return -EOPNOTSUPP; 2307 } 2308 2309 return ieee80211_request_scan(sdata, req); 2310 } 2311 2312 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2313 { 2314 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2315 } 2316 2317 static int 2318 ieee80211_sched_scan_start(struct wiphy *wiphy, 2319 struct net_device *dev, 2320 struct cfg80211_sched_scan_request *req) 2321 { 2322 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2323 2324 if (!sdata->local->ops->sched_scan_start) 2325 return -EOPNOTSUPP; 2326 2327 return ieee80211_request_sched_scan_start(sdata, req); 2328 } 2329 2330 static int 2331 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2332 u64 reqid) 2333 { 2334 struct ieee80211_local *local = wiphy_priv(wiphy); 2335 2336 if (!local->ops->sched_scan_stop) 2337 return -EOPNOTSUPP; 2338 2339 return ieee80211_request_sched_scan_stop(local); 2340 } 2341 2342 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2343 struct cfg80211_auth_request *req) 2344 { 2345 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2346 } 2347 2348 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2349 struct cfg80211_assoc_request *req) 2350 { 2351 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2352 } 2353 2354 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2355 struct cfg80211_deauth_request *req) 2356 { 2357 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2358 } 2359 2360 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2361 struct cfg80211_disassoc_request *req) 2362 { 2363 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2364 } 2365 2366 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2367 struct cfg80211_ibss_params *params) 2368 { 2369 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2370 } 2371 2372 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2373 { 2374 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2375 } 2376 2377 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2378 struct ocb_setup *setup) 2379 { 2380 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2381 } 2382 2383 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2384 { 2385 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2386 } 2387 2388 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2389 int rate[NUM_NL80211_BANDS]) 2390 { 2391 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2392 2393 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2394 sizeof(int) * NUM_NL80211_BANDS); 2395 2396 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2397 2398 return 0; 2399 } 2400 2401 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2402 { 2403 struct ieee80211_local *local = wiphy_priv(wiphy); 2404 int err; 2405 2406 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2407 ieee80211_check_fast_xmit_all(local); 2408 2409 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2410 2411 if (err) { 2412 ieee80211_check_fast_xmit_all(local); 2413 return err; 2414 } 2415 } 2416 2417 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2418 (changed & WIPHY_PARAM_DYN_ACK)) { 2419 s16 coverage_class; 2420 2421 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2422 wiphy->coverage_class : -1; 2423 err = drv_set_coverage_class(local, coverage_class); 2424 2425 if (err) 2426 return err; 2427 } 2428 2429 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2430 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2431 2432 if (err) 2433 return err; 2434 } 2435 2436 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2437 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2438 return -EINVAL; 2439 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2440 } 2441 if (changed & WIPHY_PARAM_RETRY_LONG) { 2442 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2443 return -EINVAL; 2444 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2445 } 2446 if (changed & 2447 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2448 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2449 2450 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2451 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2452 WIPHY_PARAM_TXQ_QUANTUM)) 2453 ieee80211_txq_set_params(local); 2454 2455 return 0; 2456 } 2457 2458 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2459 struct wireless_dev *wdev, 2460 enum nl80211_tx_power_setting type, int mbm) 2461 { 2462 struct ieee80211_local *local = wiphy_priv(wiphy); 2463 struct ieee80211_sub_if_data *sdata; 2464 enum nl80211_tx_power_setting txp_type = type; 2465 bool update_txp_type = false; 2466 bool has_monitor = false; 2467 2468 if (wdev) { 2469 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2470 2471 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2472 sdata = rtnl_dereference(local->monitor_sdata); 2473 if (!sdata) 2474 return -EOPNOTSUPP; 2475 } 2476 2477 switch (type) { 2478 case NL80211_TX_POWER_AUTOMATIC: 2479 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2480 txp_type = NL80211_TX_POWER_LIMITED; 2481 break; 2482 case NL80211_TX_POWER_LIMITED: 2483 case NL80211_TX_POWER_FIXED: 2484 if (mbm < 0 || (mbm % 100)) 2485 return -EOPNOTSUPP; 2486 sdata->user_power_level = MBM_TO_DBM(mbm); 2487 break; 2488 } 2489 2490 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2491 update_txp_type = true; 2492 sdata->vif.bss_conf.txpower_type = txp_type; 2493 } 2494 2495 ieee80211_recalc_txpower(sdata, update_txp_type); 2496 2497 return 0; 2498 } 2499 2500 switch (type) { 2501 case NL80211_TX_POWER_AUTOMATIC: 2502 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2503 txp_type = NL80211_TX_POWER_LIMITED; 2504 break; 2505 case NL80211_TX_POWER_LIMITED: 2506 case NL80211_TX_POWER_FIXED: 2507 if (mbm < 0 || (mbm % 100)) 2508 return -EOPNOTSUPP; 2509 local->user_power_level = MBM_TO_DBM(mbm); 2510 break; 2511 } 2512 2513 mutex_lock(&local->iflist_mtx); 2514 list_for_each_entry(sdata, &local->interfaces, list) { 2515 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2516 has_monitor = true; 2517 continue; 2518 } 2519 sdata->user_power_level = local->user_power_level; 2520 if (txp_type != sdata->vif.bss_conf.txpower_type) 2521 update_txp_type = true; 2522 sdata->vif.bss_conf.txpower_type = txp_type; 2523 } 2524 list_for_each_entry(sdata, &local->interfaces, list) { 2525 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2526 continue; 2527 ieee80211_recalc_txpower(sdata, update_txp_type); 2528 } 2529 mutex_unlock(&local->iflist_mtx); 2530 2531 if (has_monitor) { 2532 sdata = rtnl_dereference(local->monitor_sdata); 2533 if (sdata) { 2534 sdata->user_power_level = local->user_power_level; 2535 if (txp_type != sdata->vif.bss_conf.txpower_type) 2536 update_txp_type = true; 2537 sdata->vif.bss_conf.txpower_type = txp_type; 2538 2539 ieee80211_recalc_txpower(sdata, update_txp_type); 2540 } 2541 } 2542 2543 return 0; 2544 } 2545 2546 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2547 struct wireless_dev *wdev, 2548 int *dbm) 2549 { 2550 struct ieee80211_local *local = wiphy_priv(wiphy); 2551 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2552 2553 if (local->ops->get_txpower) 2554 return drv_get_txpower(local, sdata, dbm); 2555 2556 if (!local->use_chanctx) 2557 *dbm = local->hw.conf.power_level; 2558 else 2559 *dbm = sdata->vif.bss_conf.txpower; 2560 2561 return 0; 2562 } 2563 2564 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2565 const u8 *addr) 2566 { 2567 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2568 2569 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2570 2571 return 0; 2572 } 2573 2574 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2575 { 2576 struct ieee80211_local *local = wiphy_priv(wiphy); 2577 2578 drv_rfkill_poll(local); 2579 } 2580 2581 #ifdef CONFIG_NL80211_TESTMODE 2582 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2583 struct wireless_dev *wdev, 2584 void *data, int len) 2585 { 2586 struct ieee80211_local *local = wiphy_priv(wiphy); 2587 struct ieee80211_vif *vif = NULL; 2588 2589 if (!local->ops->testmode_cmd) 2590 return -EOPNOTSUPP; 2591 2592 if (wdev) { 2593 struct ieee80211_sub_if_data *sdata; 2594 2595 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2596 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2597 vif = &sdata->vif; 2598 } 2599 2600 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2601 } 2602 2603 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2604 struct sk_buff *skb, 2605 struct netlink_callback *cb, 2606 void *data, int len) 2607 { 2608 struct ieee80211_local *local = wiphy_priv(wiphy); 2609 2610 if (!local->ops->testmode_dump) 2611 return -EOPNOTSUPP; 2612 2613 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2614 } 2615 #endif 2616 2617 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2618 enum ieee80211_smps_mode smps_mode) 2619 { 2620 const u8 *ap; 2621 enum ieee80211_smps_mode old_req; 2622 int err; 2623 struct sta_info *sta; 2624 bool tdls_peer_found = false; 2625 2626 lockdep_assert_held(&sdata->wdev.mtx); 2627 2628 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2629 return -EINVAL; 2630 2631 old_req = sdata->u.mgd.req_smps; 2632 sdata->u.mgd.req_smps = smps_mode; 2633 2634 if (old_req == smps_mode && 2635 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2636 return 0; 2637 2638 /* 2639 * If not associated, or current association is not an HT 2640 * association, there's no need to do anything, just store 2641 * the new value until we associate. 2642 */ 2643 if (!sdata->u.mgd.associated || 2644 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2645 return 0; 2646 2647 ap = sdata->u.mgd.associated->bssid; 2648 2649 rcu_read_lock(); 2650 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2651 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2652 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2653 continue; 2654 2655 tdls_peer_found = true; 2656 break; 2657 } 2658 rcu_read_unlock(); 2659 2660 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2661 if (tdls_peer_found || !sdata->u.mgd.powersave) 2662 smps_mode = IEEE80211_SMPS_OFF; 2663 else 2664 smps_mode = IEEE80211_SMPS_DYNAMIC; 2665 } 2666 2667 /* send SM PS frame to AP */ 2668 err = ieee80211_send_smps_action(sdata, smps_mode, 2669 ap, ap); 2670 if (err) 2671 sdata->u.mgd.req_smps = old_req; 2672 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2673 ieee80211_teardown_tdls_peers(sdata); 2674 2675 return err; 2676 } 2677 2678 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2679 bool enabled, int timeout) 2680 { 2681 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2682 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2683 2684 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2685 return -EOPNOTSUPP; 2686 2687 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2688 return -EOPNOTSUPP; 2689 2690 if (enabled == sdata->u.mgd.powersave && 2691 timeout == local->dynamic_ps_forced_timeout) 2692 return 0; 2693 2694 sdata->u.mgd.powersave = enabled; 2695 local->dynamic_ps_forced_timeout = timeout; 2696 2697 /* no change, but if automatic follow powersave */ 2698 sdata_lock(sdata); 2699 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2700 sdata_unlock(sdata); 2701 2702 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2703 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2704 2705 ieee80211_recalc_ps(local); 2706 ieee80211_recalc_ps_vif(sdata); 2707 ieee80211_check_fast_rx_iface(sdata); 2708 2709 return 0; 2710 } 2711 2712 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2713 struct net_device *dev, 2714 s32 rssi_thold, u32 rssi_hyst) 2715 { 2716 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2717 struct ieee80211_vif *vif = &sdata->vif; 2718 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2719 2720 if (rssi_thold == bss_conf->cqm_rssi_thold && 2721 rssi_hyst == bss_conf->cqm_rssi_hyst) 2722 return 0; 2723 2724 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2725 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2726 return -EOPNOTSUPP; 2727 2728 bss_conf->cqm_rssi_thold = rssi_thold; 2729 bss_conf->cqm_rssi_hyst = rssi_hyst; 2730 bss_conf->cqm_rssi_low = 0; 2731 bss_conf->cqm_rssi_high = 0; 2732 sdata->u.mgd.last_cqm_event_signal = 0; 2733 2734 /* tell the driver upon association, unless already associated */ 2735 if (sdata->u.mgd.associated && 2736 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2737 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2738 2739 return 0; 2740 } 2741 2742 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2743 struct net_device *dev, 2744 s32 rssi_low, s32 rssi_high) 2745 { 2746 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2747 struct ieee80211_vif *vif = &sdata->vif; 2748 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2749 2750 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2751 return -EOPNOTSUPP; 2752 2753 bss_conf->cqm_rssi_low = rssi_low; 2754 bss_conf->cqm_rssi_high = rssi_high; 2755 bss_conf->cqm_rssi_thold = 0; 2756 bss_conf->cqm_rssi_hyst = 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_bitrate_mask(struct wiphy *wiphy, 2768 struct net_device *dev, 2769 const u8 *addr, 2770 const struct cfg80211_bitrate_mask *mask) 2771 { 2772 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2773 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2774 int i, ret; 2775 2776 if (!ieee80211_sdata_running(sdata)) 2777 return -ENETDOWN; 2778 2779 /* 2780 * If active validate the setting and reject it if it doesn't leave 2781 * at least one basic rate usable, since we really have to be able 2782 * to send something, and if we're an AP we have to be able to do 2783 * so at a basic rate so that all clients can receive it. 2784 */ 2785 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2786 sdata->vif.bss_conf.chandef.chan) { 2787 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2788 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2789 2790 if (!(mask->control[band].legacy & basic_rates)) 2791 return -EINVAL; 2792 } 2793 2794 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2795 ret = drv_set_bitrate_mask(local, sdata, mask); 2796 if (ret) 2797 return ret; 2798 } 2799 2800 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2801 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2802 int j; 2803 2804 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2805 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2806 sizeof(mask->control[i].ht_mcs)); 2807 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2808 mask->control[i].vht_mcs, 2809 sizeof(mask->control[i].vht_mcs)); 2810 2811 sdata->rc_has_mcs_mask[i] = false; 2812 sdata->rc_has_vht_mcs_mask[i] = false; 2813 if (!sband) 2814 continue; 2815 2816 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2817 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2818 sdata->rc_has_mcs_mask[i] = true; 2819 break; 2820 } 2821 } 2822 2823 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2824 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2825 sdata->rc_has_vht_mcs_mask[i] = true; 2826 break; 2827 } 2828 } 2829 } 2830 2831 return 0; 2832 } 2833 2834 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2835 struct net_device *dev, 2836 struct cfg80211_chan_def *chandef, 2837 u32 cac_time_ms) 2838 { 2839 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2840 struct ieee80211_local *local = sdata->local; 2841 int err; 2842 2843 mutex_lock(&local->mtx); 2844 if (!list_empty(&local->roc_list) || local->scanning) { 2845 err = -EBUSY; 2846 goto out_unlock; 2847 } 2848 2849 /* whatever, but channel contexts should not complain about that one */ 2850 sdata->smps_mode = IEEE80211_SMPS_OFF; 2851 sdata->needed_rx_chains = local->rx_chains; 2852 2853 err = ieee80211_vif_use_channel(sdata, chandef, 2854 IEEE80211_CHANCTX_SHARED); 2855 if (err) 2856 goto out_unlock; 2857 2858 ieee80211_queue_delayed_work(&sdata->local->hw, 2859 &sdata->dfs_cac_timer_work, 2860 msecs_to_jiffies(cac_time_ms)); 2861 2862 out_unlock: 2863 mutex_unlock(&local->mtx); 2864 return err; 2865 } 2866 2867 static void ieee80211_end_cac(struct wiphy *wiphy, 2868 struct net_device *dev) 2869 { 2870 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2871 struct ieee80211_local *local = sdata->local; 2872 2873 mutex_lock(&local->mtx); 2874 list_for_each_entry(sdata, &local->interfaces, list) { 2875 /* it might be waiting for the local->mtx, but then 2876 * by the time it gets it, sdata->wdev.cac_started 2877 * will no longer be true 2878 */ 2879 cancel_delayed_work(&sdata->dfs_cac_timer_work); 2880 2881 if (sdata->wdev.cac_started) { 2882 ieee80211_vif_release_channel(sdata); 2883 sdata->wdev.cac_started = false; 2884 } 2885 } 2886 mutex_unlock(&local->mtx); 2887 } 2888 2889 static struct cfg80211_beacon_data * 2890 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2891 { 2892 struct cfg80211_beacon_data *new_beacon; 2893 u8 *pos; 2894 int len; 2895 2896 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2897 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2898 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 2899 2900 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2901 if (!new_beacon) 2902 return NULL; 2903 2904 pos = (u8 *)(new_beacon + 1); 2905 if (beacon->head_len) { 2906 new_beacon->head_len = beacon->head_len; 2907 new_beacon->head = pos; 2908 memcpy(pos, beacon->head, beacon->head_len); 2909 pos += beacon->head_len; 2910 } 2911 if (beacon->tail_len) { 2912 new_beacon->tail_len = beacon->tail_len; 2913 new_beacon->tail = pos; 2914 memcpy(pos, beacon->tail, beacon->tail_len); 2915 pos += beacon->tail_len; 2916 } 2917 if (beacon->beacon_ies_len) { 2918 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2919 new_beacon->beacon_ies = pos; 2920 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2921 pos += beacon->beacon_ies_len; 2922 } 2923 if (beacon->proberesp_ies_len) { 2924 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2925 new_beacon->proberesp_ies = pos; 2926 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2927 pos += beacon->proberesp_ies_len; 2928 } 2929 if (beacon->assocresp_ies_len) { 2930 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2931 new_beacon->assocresp_ies = pos; 2932 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2933 pos += beacon->assocresp_ies_len; 2934 } 2935 if (beacon->probe_resp_len) { 2936 new_beacon->probe_resp_len = beacon->probe_resp_len; 2937 new_beacon->probe_resp = pos; 2938 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 2939 pos += beacon->probe_resp_len; 2940 } 2941 2942 /* might copy -1, meaning no changes requested */ 2943 new_beacon->ftm_responder = beacon->ftm_responder; 2944 if (beacon->lci) { 2945 new_beacon->lci_len = beacon->lci_len; 2946 new_beacon->lci = pos; 2947 memcpy(pos, beacon->lci, beacon->lci_len); 2948 pos += beacon->lci_len; 2949 } 2950 if (beacon->civicloc) { 2951 new_beacon->civicloc_len = beacon->civicloc_len; 2952 new_beacon->civicloc = pos; 2953 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 2954 pos += beacon->civicloc_len; 2955 } 2956 2957 return new_beacon; 2958 } 2959 2960 void ieee80211_csa_finish(struct ieee80211_vif *vif) 2961 { 2962 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2963 2964 ieee80211_queue_work(&sdata->local->hw, 2965 &sdata->csa_finalize_work); 2966 } 2967 EXPORT_SYMBOL(ieee80211_csa_finish); 2968 2969 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 2970 u32 *changed) 2971 { 2972 int err; 2973 2974 switch (sdata->vif.type) { 2975 case NL80211_IFTYPE_AP: 2976 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 2977 NULL); 2978 kfree(sdata->u.ap.next_beacon); 2979 sdata->u.ap.next_beacon = NULL; 2980 2981 if (err < 0) 2982 return err; 2983 *changed |= err; 2984 break; 2985 case NL80211_IFTYPE_ADHOC: 2986 err = ieee80211_ibss_finish_csa(sdata); 2987 if (err < 0) 2988 return err; 2989 *changed |= err; 2990 break; 2991 #ifdef CONFIG_MAC80211_MESH 2992 case NL80211_IFTYPE_MESH_POINT: 2993 err = ieee80211_mesh_finish_csa(sdata); 2994 if (err < 0) 2995 return err; 2996 *changed |= err; 2997 break; 2998 #endif 2999 default: 3000 WARN_ON(1); 3001 return -EINVAL; 3002 } 3003 3004 return 0; 3005 } 3006 3007 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3008 { 3009 struct ieee80211_local *local = sdata->local; 3010 u32 changed = 0; 3011 int err; 3012 3013 sdata_assert_lock(sdata); 3014 lockdep_assert_held(&local->mtx); 3015 lockdep_assert_held(&local->chanctx_mtx); 3016 3017 /* 3018 * using reservation isn't immediate as it may be deferred until later 3019 * with multi-vif. once reservation is complete it will re-schedule the 3020 * work with no reserved_chanctx so verify chandef to check if it 3021 * completed successfully 3022 */ 3023 3024 if (sdata->reserved_chanctx) { 3025 /* 3026 * with multi-vif csa driver may call ieee80211_csa_finish() 3027 * many times while waiting for other interfaces to use their 3028 * reservations 3029 */ 3030 if (sdata->reserved_ready) 3031 return 0; 3032 3033 return ieee80211_vif_use_reserved_context(sdata); 3034 } 3035 3036 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3037 &sdata->csa_chandef)) 3038 return -EINVAL; 3039 3040 sdata->vif.csa_active = false; 3041 3042 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3043 if (err) 3044 return err; 3045 3046 ieee80211_bss_info_change_notify(sdata, changed); 3047 3048 if (sdata->csa_block_tx) { 3049 ieee80211_wake_vif_queues(local, sdata, 3050 IEEE80211_QUEUE_STOP_REASON_CSA); 3051 sdata->csa_block_tx = false; 3052 } 3053 3054 err = drv_post_channel_switch(sdata); 3055 if (err) 3056 return err; 3057 3058 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3059 3060 return 0; 3061 } 3062 3063 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3064 { 3065 if (__ieee80211_csa_finalize(sdata)) { 3066 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3067 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3068 GFP_KERNEL); 3069 } 3070 } 3071 3072 void ieee80211_csa_finalize_work(struct work_struct *work) 3073 { 3074 struct ieee80211_sub_if_data *sdata = 3075 container_of(work, struct ieee80211_sub_if_data, 3076 csa_finalize_work); 3077 struct ieee80211_local *local = sdata->local; 3078 3079 sdata_lock(sdata); 3080 mutex_lock(&local->mtx); 3081 mutex_lock(&local->chanctx_mtx); 3082 3083 /* AP might have been stopped while waiting for the lock. */ 3084 if (!sdata->vif.csa_active) 3085 goto unlock; 3086 3087 if (!ieee80211_sdata_running(sdata)) 3088 goto unlock; 3089 3090 ieee80211_csa_finalize(sdata); 3091 3092 unlock: 3093 mutex_unlock(&local->chanctx_mtx); 3094 mutex_unlock(&local->mtx); 3095 sdata_unlock(sdata); 3096 } 3097 3098 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3099 struct cfg80211_csa_settings *params, 3100 u32 *changed) 3101 { 3102 struct ieee80211_csa_settings csa = {}; 3103 int err; 3104 3105 switch (sdata->vif.type) { 3106 case NL80211_IFTYPE_AP: 3107 sdata->u.ap.next_beacon = 3108 cfg80211_beacon_dup(¶ms->beacon_after); 3109 if (!sdata->u.ap.next_beacon) 3110 return -ENOMEM; 3111 3112 /* 3113 * With a count of 0, we don't have to wait for any 3114 * TBTT before switching, so complete the CSA 3115 * immediately. In theory, with a count == 1 we 3116 * should delay the switch until just before the next 3117 * TBTT, but that would complicate things so we switch 3118 * immediately too. If we would delay the switch 3119 * until the next TBTT, we would have to set the probe 3120 * response here. 3121 * 3122 * TODO: A channel switch with count <= 1 without 3123 * sending a CSA action frame is kind of useless, 3124 * because the clients won't know we're changing 3125 * channels. The action frame must be implemented 3126 * either here or in the userspace. 3127 */ 3128 if (params->count <= 1) 3129 break; 3130 3131 if ((params->n_counter_offsets_beacon > 3132 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3133 (params->n_counter_offsets_presp > 3134 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3135 return -EINVAL; 3136 3137 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3138 csa.counter_offsets_presp = params->counter_offsets_presp; 3139 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3140 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3141 csa.count = params->count; 3142 3143 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3144 if (err < 0) { 3145 kfree(sdata->u.ap.next_beacon); 3146 return err; 3147 } 3148 *changed |= err; 3149 3150 break; 3151 case NL80211_IFTYPE_ADHOC: 3152 if (!sdata->vif.bss_conf.ibss_joined) 3153 return -EINVAL; 3154 3155 if (params->chandef.width != sdata->u.ibss.chandef.width) 3156 return -EINVAL; 3157 3158 switch (params->chandef.width) { 3159 case NL80211_CHAN_WIDTH_40: 3160 if (cfg80211_get_chandef_type(¶ms->chandef) != 3161 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3162 return -EINVAL; 3163 case NL80211_CHAN_WIDTH_5: 3164 case NL80211_CHAN_WIDTH_10: 3165 case NL80211_CHAN_WIDTH_20_NOHT: 3166 case NL80211_CHAN_WIDTH_20: 3167 break; 3168 default: 3169 return -EINVAL; 3170 } 3171 3172 /* changes into another band are not supported */ 3173 if (sdata->u.ibss.chandef.chan->band != 3174 params->chandef.chan->band) 3175 return -EINVAL; 3176 3177 /* see comments in the NL80211_IFTYPE_AP block */ 3178 if (params->count > 1) { 3179 err = ieee80211_ibss_csa_beacon(sdata, params); 3180 if (err < 0) 3181 return err; 3182 *changed |= err; 3183 } 3184 3185 ieee80211_send_action_csa(sdata, params); 3186 3187 break; 3188 #ifdef CONFIG_MAC80211_MESH 3189 case NL80211_IFTYPE_MESH_POINT: { 3190 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3191 3192 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3193 return -EINVAL; 3194 3195 /* changes into another band are not supported */ 3196 if (sdata->vif.bss_conf.chandef.chan->band != 3197 params->chandef.chan->band) 3198 return -EINVAL; 3199 3200 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3201 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3202 if (!ifmsh->pre_value) 3203 ifmsh->pre_value = 1; 3204 else 3205 ifmsh->pre_value++; 3206 } 3207 3208 /* see comments in the NL80211_IFTYPE_AP block */ 3209 if (params->count > 1) { 3210 err = ieee80211_mesh_csa_beacon(sdata, params); 3211 if (err < 0) { 3212 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3213 return err; 3214 } 3215 *changed |= err; 3216 } 3217 3218 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3219 ieee80211_send_action_csa(sdata, params); 3220 3221 break; 3222 } 3223 #endif 3224 default: 3225 return -EOPNOTSUPP; 3226 } 3227 3228 return 0; 3229 } 3230 3231 static int 3232 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3233 struct cfg80211_csa_settings *params) 3234 { 3235 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3236 struct ieee80211_local *local = sdata->local; 3237 struct ieee80211_channel_switch ch_switch; 3238 struct ieee80211_chanctx_conf *conf; 3239 struct ieee80211_chanctx *chanctx; 3240 u32 changed = 0; 3241 int err; 3242 3243 sdata_assert_lock(sdata); 3244 lockdep_assert_held(&local->mtx); 3245 3246 if (!list_empty(&local->roc_list) || local->scanning) 3247 return -EBUSY; 3248 3249 if (sdata->wdev.cac_started) 3250 return -EBUSY; 3251 3252 if (cfg80211_chandef_identical(¶ms->chandef, 3253 &sdata->vif.bss_conf.chandef)) 3254 return -EINVAL; 3255 3256 /* don't allow another channel switch if one is already active. */ 3257 if (sdata->vif.csa_active) 3258 return -EBUSY; 3259 3260 mutex_lock(&local->chanctx_mtx); 3261 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3262 lockdep_is_held(&local->chanctx_mtx)); 3263 if (!conf) { 3264 err = -EBUSY; 3265 goto out; 3266 } 3267 3268 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3269 3270 ch_switch.timestamp = 0; 3271 ch_switch.device_timestamp = 0; 3272 ch_switch.block_tx = params->block_tx; 3273 ch_switch.chandef = params->chandef; 3274 ch_switch.count = params->count; 3275 3276 err = drv_pre_channel_switch(sdata, &ch_switch); 3277 if (err) 3278 goto out; 3279 3280 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3281 chanctx->mode, 3282 params->radar_required); 3283 if (err) 3284 goto out; 3285 3286 /* if reservation is invalid then this will fail */ 3287 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3288 if (err) { 3289 ieee80211_vif_unreserve_chanctx(sdata); 3290 goto out; 3291 } 3292 3293 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3294 if (err) { 3295 ieee80211_vif_unreserve_chanctx(sdata); 3296 goto out; 3297 } 3298 3299 sdata->csa_chandef = params->chandef; 3300 sdata->csa_block_tx = params->block_tx; 3301 sdata->vif.csa_active = true; 3302 3303 if (sdata->csa_block_tx) 3304 ieee80211_stop_vif_queues(local, sdata, 3305 IEEE80211_QUEUE_STOP_REASON_CSA); 3306 3307 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3308 params->count); 3309 3310 if (changed) { 3311 ieee80211_bss_info_change_notify(sdata, changed); 3312 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3313 } else { 3314 /* if the beacon didn't change, we can finalize immediately */ 3315 ieee80211_csa_finalize(sdata); 3316 } 3317 3318 out: 3319 mutex_unlock(&local->chanctx_mtx); 3320 return err; 3321 } 3322 3323 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3324 struct cfg80211_csa_settings *params) 3325 { 3326 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3327 struct ieee80211_local *local = sdata->local; 3328 int err; 3329 3330 mutex_lock(&local->mtx); 3331 err = __ieee80211_channel_switch(wiphy, dev, params); 3332 mutex_unlock(&local->mtx); 3333 3334 return err; 3335 } 3336 3337 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3338 { 3339 lockdep_assert_held(&local->mtx); 3340 3341 local->roc_cookie_counter++; 3342 3343 /* wow, you wrapped 64 bits ... more likely a bug */ 3344 if (WARN_ON(local->roc_cookie_counter == 0)) 3345 local->roc_cookie_counter++; 3346 3347 return local->roc_cookie_counter; 3348 } 3349 3350 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3351 u64 *cookie, gfp_t gfp) 3352 { 3353 unsigned long spin_flags; 3354 struct sk_buff *ack_skb; 3355 int id; 3356 3357 ack_skb = skb_copy(skb, gfp); 3358 if (!ack_skb) 3359 return -ENOMEM; 3360 3361 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3362 id = idr_alloc(&local->ack_status_frames, ack_skb, 3363 1, 0x2000, GFP_ATOMIC); 3364 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3365 3366 if (id < 0) { 3367 kfree_skb(ack_skb); 3368 return -ENOMEM; 3369 } 3370 3371 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3372 3373 *cookie = ieee80211_mgmt_tx_cookie(local); 3374 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3375 3376 return 0; 3377 } 3378 3379 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3380 struct wireless_dev *wdev, 3381 u16 frame_type, bool reg) 3382 { 3383 struct ieee80211_local *local = wiphy_priv(wiphy); 3384 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3385 3386 switch (frame_type) { 3387 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3388 if (reg) { 3389 local->probe_req_reg++; 3390 sdata->vif.probe_req_reg++; 3391 } else { 3392 if (local->probe_req_reg) 3393 local->probe_req_reg--; 3394 3395 if (sdata->vif.probe_req_reg) 3396 sdata->vif.probe_req_reg--; 3397 } 3398 3399 if (!local->open_count) 3400 break; 3401 3402 if (sdata->vif.probe_req_reg == 1) 3403 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ, 3404 FIF_PROBE_REQ); 3405 else if (sdata->vif.probe_req_reg == 0) 3406 drv_config_iface_filter(local, sdata, 0, 3407 FIF_PROBE_REQ); 3408 3409 ieee80211_configure_filter(local); 3410 break; 3411 default: 3412 break; 3413 } 3414 } 3415 3416 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3417 { 3418 struct ieee80211_local *local = wiphy_priv(wiphy); 3419 3420 if (local->started) 3421 return -EOPNOTSUPP; 3422 3423 return drv_set_antenna(local, tx_ant, rx_ant); 3424 } 3425 3426 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3427 { 3428 struct ieee80211_local *local = wiphy_priv(wiphy); 3429 3430 return drv_get_antenna(local, tx_ant, rx_ant); 3431 } 3432 3433 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3434 struct net_device *dev, 3435 struct cfg80211_gtk_rekey_data *data) 3436 { 3437 struct ieee80211_local *local = wiphy_priv(wiphy); 3438 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3439 3440 if (!local->ops->set_rekey_data) 3441 return -EOPNOTSUPP; 3442 3443 drv_set_rekey_data(local, sdata, data); 3444 3445 return 0; 3446 } 3447 3448 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3449 const u8 *peer, u64 *cookie) 3450 { 3451 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3452 struct ieee80211_local *local = sdata->local; 3453 struct ieee80211_qos_hdr *nullfunc; 3454 struct sk_buff *skb; 3455 int size = sizeof(*nullfunc); 3456 __le16 fc; 3457 bool qos; 3458 struct ieee80211_tx_info *info; 3459 struct sta_info *sta; 3460 struct ieee80211_chanctx_conf *chanctx_conf; 3461 enum nl80211_band band; 3462 int ret; 3463 3464 /* the lock is needed to assign the cookie later */ 3465 mutex_lock(&local->mtx); 3466 3467 rcu_read_lock(); 3468 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3469 if (WARN_ON(!chanctx_conf)) { 3470 ret = -EINVAL; 3471 goto unlock; 3472 } 3473 band = chanctx_conf->def.chan->band; 3474 sta = sta_info_get_bss(sdata, peer); 3475 if (sta) { 3476 qos = sta->sta.wme; 3477 } else { 3478 ret = -ENOLINK; 3479 goto unlock; 3480 } 3481 3482 if (qos) { 3483 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3484 IEEE80211_STYPE_QOS_NULLFUNC | 3485 IEEE80211_FCTL_FROMDS); 3486 } else { 3487 size -= 2; 3488 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3489 IEEE80211_STYPE_NULLFUNC | 3490 IEEE80211_FCTL_FROMDS); 3491 } 3492 3493 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3494 if (!skb) { 3495 ret = -ENOMEM; 3496 goto unlock; 3497 } 3498 3499 skb->dev = dev; 3500 3501 skb_reserve(skb, local->hw.extra_tx_headroom); 3502 3503 nullfunc = skb_put(skb, size); 3504 nullfunc->frame_control = fc; 3505 nullfunc->duration_id = 0; 3506 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3507 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3508 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3509 nullfunc->seq_ctrl = 0; 3510 3511 info = IEEE80211_SKB_CB(skb); 3512 3513 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3514 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3515 info->band = band; 3516 3517 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3518 skb->priority = 7; 3519 if (qos) 3520 nullfunc->qos_ctrl = cpu_to_le16(7); 3521 3522 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3523 if (ret) { 3524 kfree_skb(skb); 3525 goto unlock; 3526 } 3527 3528 local_bh_disable(); 3529 ieee80211_xmit(sdata, sta, skb, 0); 3530 local_bh_enable(); 3531 3532 ret = 0; 3533 unlock: 3534 rcu_read_unlock(); 3535 mutex_unlock(&local->mtx); 3536 3537 return ret; 3538 } 3539 3540 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3541 struct wireless_dev *wdev, 3542 struct cfg80211_chan_def *chandef) 3543 { 3544 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3545 struct ieee80211_local *local = wiphy_priv(wiphy); 3546 struct ieee80211_chanctx_conf *chanctx_conf; 3547 int ret = -ENODATA; 3548 3549 rcu_read_lock(); 3550 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3551 if (chanctx_conf) { 3552 *chandef = sdata->vif.bss_conf.chandef; 3553 ret = 0; 3554 } else if (local->open_count > 0 && 3555 local->open_count == local->monitors && 3556 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3557 if (local->use_chanctx) 3558 *chandef = local->monitor_chandef; 3559 else 3560 *chandef = local->_oper_chandef; 3561 ret = 0; 3562 } 3563 rcu_read_unlock(); 3564 3565 return ret; 3566 } 3567 3568 #ifdef CONFIG_PM 3569 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3570 { 3571 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3572 } 3573 #endif 3574 3575 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3576 struct net_device *dev, 3577 struct cfg80211_qos_map *qos_map) 3578 { 3579 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3580 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3581 3582 if (qos_map) { 3583 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3584 if (!new_qos_map) 3585 return -ENOMEM; 3586 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3587 } else { 3588 /* A NULL qos_map was passed to disable QoS mapping */ 3589 new_qos_map = NULL; 3590 } 3591 3592 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3593 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3594 if (old_qos_map) 3595 kfree_rcu(old_qos_map, rcu_head); 3596 3597 return 0; 3598 } 3599 3600 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3601 struct net_device *dev, 3602 struct cfg80211_chan_def *chandef) 3603 { 3604 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3605 int ret; 3606 u32 changed = 0; 3607 3608 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3609 if (ret == 0) 3610 ieee80211_bss_info_change_notify(sdata, changed); 3611 3612 return ret; 3613 } 3614 3615 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3616 u8 tsid, const u8 *peer, u8 up, 3617 u16 admitted_time) 3618 { 3619 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3620 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3621 int ac = ieee802_1d_to_ac[up]; 3622 3623 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3624 return -EOPNOTSUPP; 3625 3626 if (!(sdata->wmm_acm & BIT(up))) 3627 return -EINVAL; 3628 3629 if (ifmgd->tx_tspec[ac].admitted_time) 3630 return -EBUSY; 3631 3632 if (admitted_time) { 3633 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3634 ifmgd->tx_tspec[ac].tsid = tsid; 3635 ifmgd->tx_tspec[ac].up = up; 3636 } 3637 3638 return 0; 3639 } 3640 3641 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3642 u8 tsid, const u8 *peer) 3643 { 3644 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3645 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3646 struct ieee80211_local *local = wiphy_priv(wiphy); 3647 int ac; 3648 3649 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3650 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3651 3652 /* skip unused entries */ 3653 if (!tx_tspec->admitted_time) 3654 continue; 3655 3656 if (tx_tspec->tsid != tsid) 3657 continue; 3658 3659 /* due to this new packets will be reassigned to non-ACM ACs */ 3660 tx_tspec->up = -1; 3661 3662 /* Make sure that all packets have been sent to avoid to 3663 * restore the QoS params on packets that are still on the 3664 * queues. 3665 */ 3666 synchronize_net(); 3667 ieee80211_flush_queues(local, sdata, false); 3668 3669 /* restore the normal QoS parameters 3670 * (unconditionally to avoid races) 3671 */ 3672 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3673 tx_tspec->downgraded = false; 3674 ieee80211_sta_handle_tspec_ac_params(sdata); 3675 3676 /* finally clear all the data */ 3677 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3678 3679 return 0; 3680 } 3681 3682 return -ENOENT; 3683 } 3684 3685 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3686 u8 inst_id, 3687 enum nl80211_nan_func_term_reason reason, 3688 gfp_t gfp) 3689 { 3690 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3691 struct cfg80211_nan_func *func; 3692 u64 cookie; 3693 3694 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3695 return; 3696 3697 spin_lock_bh(&sdata->u.nan.func_lock); 3698 3699 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3700 if (WARN_ON(!func)) { 3701 spin_unlock_bh(&sdata->u.nan.func_lock); 3702 return; 3703 } 3704 3705 cookie = func->cookie; 3706 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3707 3708 spin_unlock_bh(&sdata->u.nan.func_lock); 3709 3710 cfg80211_free_nan_func(func); 3711 3712 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3713 reason, cookie, gfp); 3714 } 3715 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3716 3717 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3718 struct cfg80211_nan_match_params *match, 3719 gfp_t gfp) 3720 { 3721 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3722 struct cfg80211_nan_func *func; 3723 3724 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3725 return; 3726 3727 spin_lock_bh(&sdata->u.nan.func_lock); 3728 3729 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3730 if (WARN_ON(!func)) { 3731 spin_unlock_bh(&sdata->u.nan.func_lock); 3732 return; 3733 } 3734 match->cookie = func->cookie; 3735 3736 spin_unlock_bh(&sdata->u.nan.func_lock); 3737 3738 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3739 } 3740 EXPORT_SYMBOL(ieee80211_nan_func_match); 3741 3742 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3743 struct net_device *dev, 3744 const bool enabled) 3745 { 3746 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3747 3748 sdata->u.ap.multicast_to_unicast = enabled; 3749 3750 return 0; 3751 } 3752 3753 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 3754 struct txq_info *txqi) 3755 { 3756 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 3757 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 3758 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 3759 } 3760 3761 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 3762 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 3763 txqstats->backlog_packets = txqi->tin.backlog_packets; 3764 } 3765 3766 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 3767 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 3768 txqstats->flows = txqi->tin.flows; 3769 } 3770 3771 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 3772 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 3773 txqstats->drops = txqi->cstats.drop_count; 3774 } 3775 3776 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 3777 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 3778 txqstats->ecn_marks = txqi->cstats.ecn_mark; 3779 } 3780 3781 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 3782 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 3783 txqstats->overlimit = txqi->tin.overlimit; 3784 } 3785 3786 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 3787 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 3788 txqstats->collisions = txqi->tin.collisions; 3789 } 3790 3791 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 3792 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 3793 txqstats->tx_bytes = txqi->tin.tx_bytes; 3794 } 3795 3796 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 3797 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 3798 txqstats->tx_packets = txqi->tin.tx_packets; 3799 } 3800 } 3801 3802 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 3803 struct wireless_dev *wdev, 3804 struct cfg80211_txq_stats *txqstats) 3805 { 3806 struct ieee80211_local *local = wiphy_priv(wiphy); 3807 struct ieee80211_sub_if_data *sdata; 3808 int ret = 0; 3809 3810 if (!local->ops->wake_tx_queue) 3811 return 1; 3812 3813 spin_lock_bh(&local->fq.lock); 3814 rcu_read_lock(); 3815 3816 if (wdev) { 3817 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3818 if (!sdata->vif.txq) { 3819 ret = 1; 3820 goto out; 3821 } 3822 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 3823 } else { 3824 /* phy stats */ 3825 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 3826 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 3827 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 3828 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 3829 BIT(NL80211_TXQ_STATS_COLLISIONS) | 3830 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 3831 txqstats->backlog_packets = local->fq.backlog; 3832 txqstats->backlog_bytes = local->fq.memory_usage; 3833 txqstats->overlimit = local->fq.overlimit; 3834 txqstats->overmemory = local->fq.overmemory; 3835 txqstats->collisions = local->fq.collisions; 3836 txqstats->max_flows = local->fq.flows_cnt; 3837 } 3838 3839 out: 3840 rcu_read_unlock(); 3841 spin_unlock_bh(&local->fq.lock); 3842 3843 return ret; 3844 } 3845 3846 static int 3847 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 3848 struct net_device *dev, 3849 struct cfg80211_ftm_responder_stats *ftm_stats) 3850 { 3851 struct ieee80211_local *local = wiphy_priv(wiphy); 3852 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3853 3854 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 3855 } 3856 3857 static int 3858 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3859 struct cfg80211_pmsr_request *request) 3860 { 3861 struct ieee80211_local *local = wiphy_priv(wiphy); 3862 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3863 3864 return drv_start_pmsr(local, sdata, request); 3865 } 3866 3867 static void 3868 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3869 struct cfg80211_pmsr_request *request) 3870 { 3871 struct ieee80211_local *local = wiphy_priv(wiphy); 3872 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3873 3874 return drv_abort_pmsr(local, sdata, request); 3875 } 3876 3877 const struct cfg80211_ops mac80211_config_ops = { 3878 .add_virtual_intf = ieee80211_add_iface, 3879 .del_virtual_intf = ieee80211_del_iface, 3880 .change_virtual_intf = ieee80211_change_iface, 3881 .start_p2p_device = ieee80211_start_p2p_device, 3882 .stop_p2p_device = ieee80211_stop_p2p_device, 3883 .add_key = ieee80211_add_key, 3884 .del_key = ieee80211_del_key, 3885 .get_key = ieee80211_get_key, 3886 .set_default_key = ieee80211_config_default_key, 3887 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3888 .start_ap = ieee80211_start_ap, 3889 .change_beacon = ieee80211_change_beacon, 3890 .stop_ap = ieee80211_stop_ap, 3891 .add_station = ieee80211_add_station, 3892 .del_station = ieee80211_del_station, 3893 .change_station = ieee80211_change_station, 3894 .get_station = ieee80211_get_station, 3895 .dump_station = ieee80211_dump_station, 3896 .dump_survey = ieee80211_dump_survey, 3897 #ifdef CONFIG_MAC80211_MESH 3898 .add_mpath = ieee80211_add_mpath, 3899 .del_mpath = ieee80211_del_mpath, 3900 .change_mpath = ieee80211_change_mpath, 3901 .get_mpath = ieee80211_get_mpath, 3902 .dump_mpath = ieee80211_dump_mpath, 3903 .get_mpp = ieee80211_get_mpp, 3904 .dump_mpp = ieee80211_dump_mpp, 3905 .update_mesh_config = ieee80211_update_mesh_config, 3906 .get_mesh_config = ieee80211_get_mesh_config, 3907 .join_mesh = ieee80211_join_mesh, 3908 .leave_mesh = ieee80211_leave_mesh, 3909 #endif 3910 .join_ocb = ieee80211_join_ocb, 3911 .leave_ocb = ieee80211_leave_ocb, 3912 .change_bss = ieee80211_change_bss, 3913 .set_txq_params = ieee80211_set_txq_params, 3914 .set_monitor_channel = ieee80211_set_monitor_channel, 3915 .suspend = ieee80211_suspend, 3916 .resume = ieee80211_resume, 3917 .scan = ieee80211_scan, 3918 .abort_scan = ieee80211_abort_scan, 3919 .sched_scan_start = ieee80211_sched_scan_start, 3920 .sched_scan_stop = ieee80211_sched_scan_stop, 3921 .auth = ieee80211_auth, 3922 .assoc = ieee80211_assoc, 3923 .deauth = ieee80211_deauth, 3924 .disassoc = ieee80211_disassoc, 3925 .join_ibss = ieee80211_join_ibss, 3926 .leave_ibss = ieee80211_leave_ibss, 3927 .set_mcast_rate = ieee80211_set_mcast_rate, 3928 .set_wiphy_params = ieee80211_set_wiphy_params, 3929 .set_tx_power = ieee80211_set_tx_power, 3930 .get_tx_power = ieee80211_get_tx_power, 3931 .set_wds_peer = ieee80211_set_wds_peer, 3932 .rfkill_poll = ieee80211_rfkill_poll, 3933 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 3934 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 3935 .set_power_mgmt = ieee80211_set_power_mgmt, 3936 .set_bitrate_mask = ieee80211_set_bitrate_mask, 3937 .remain_on_channel = ieee80211_remain_on_channel, 3938 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 3939 .mgmt_tx = ieee80211_mgmt_tx, 3940 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 3941 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 3942 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 3943 .mgmt_frame_register = ieee80211_mgmt_frame_register, 3944 .set_antenna = ieee80211_set_antenna, 3945 .get_antenna = ieee80211_get_antenna, 3946 .set_rekey_data = ieee80211_set_rekey_data, 3947 .tdls_oper = ieee80211_tdls_oper, 3948 .tdls_mgmt = ieee80211_tdls_mgmt, 3949 .tdls_channel_switch = ieee80211_tdls_channel_switch, 3950 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 3951 .probe_client = ieee80211_probe_client, 3952 .set_noack_map = ieee80211_set_noack_map, 3953 #ifdef CONFIG_PM 3954 .set_wakeup = ieee80211_set_wakeup, 3955 #endif 3956 .get_channel = ieee80211_cfg_get_channel, 3957 .start_radar_detection = ieee80211_start_radar_detection, 3958 .end_cac = ieee80211_end_cac, 3959 .channel_switch = ieee80211_channel_switch, 3960 .set_qos_map = ieee80211_set_qos_map, 3961 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 3962 .add_tx_ts = ieee80211_add_tx_ts, 3963 .del_tx_ts = ieee80211_del_tx_ts, 3964 .start_nan = ieee80211_start_nan, 3965 .stop_nan = ieee80211_stop_nan, 3966 .nan_change_conf = ieee80211_nan_change_conf, 3967 .add_nan_func = ieee80211_add_nan_func, 3968 .del_nan_func = ieee80211_del_nan_func, 3969 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 3970 .tx_control_port = ieee80211_tx_control_port, 3971 .get_txq_stats = ieee80211_get_txq_stats, 3972 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 3973 .start_pmsr = ieee80211_start_pmsr, 3974 .abort_pmsr = ieee80211_abort_pmsr, 3975 .probe_mesh_link = ieee80211_probe_mesh_link, 3976 }; 3977