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) 2018-2020 Intel Corporation 9 */ 10 11 #include <linux/ieee80211.h> 12 #include <linux/nl80211.h> 13 #include <linux/rtnetlink.h> 14 #include <linux/slab.h> 15 #include <net/net_namespace.h> 16 #include <linux/rcupdate.h> 17 #include <linux/fips.h> 18 #include <linux/if_ether.h> 19 #include <net/cfg80211.h> 20 #include "ieee80211_i.h" 21 #include "driver-ops.h" 22 #include "rate.h" 23 #include "mesh.h" 24 #include "wme.h" 25 26 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 27 struct vif_params *params) 28 { 29 bool mu_mimo_groups = false; 30 bool mu_mimo_follow = false; 31 32 if (params->vht_mumimo_groups) { 33 u64 membership; 34 35 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 36 37 memcpy(sdata->vif.bss_conf.mu_group.membership, 38 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 39 memcpy(sdata->vif.bss_conf.mu_group.position, 40 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 41 WLAN_USER_POSITION_LEN); 42 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS); 43 /* don't care about endianness - just check for 0 */ 44 memcpy(&membership, params->vht_mumimo_groups, 45 WLAN_MEMBERSHIP_LEN); 46 mu_mimo_groups = membership != 0; 47 } 48 49 if (params->vht_mumimo_follow_addr) { 50 mu_mimo_follow = 51 is_valid_ether_addr(params->vht_mumimo_follow_addr); 52 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 53 params->vht_mumimo_follow_addr); 54 } 55 56 sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 57 } 58 59 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 60 struct vif_params *params) 61 { 62 struct ieee80211_local *local = sdata->local; 63 struct ieee80211_sub_if_data *monitor_sdata; 64 65 /* check flags first */ 66 if (params->flags && ieee80211_sdata_running(sdata)) { 67 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 68 69 /* 70 * Prohibit MONITOR_FLAG_COOK_FRAMES and 71 * MONITOR_FLAG_ACTIVE to be changed while the 72 * interface is up. 73 * Else we would need to add a lot of cruft 74 * to update everything: 75 * cooked_mntrs, monitor and all fif_* counters 76 * reconfigure hardware 77 */ 78 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 79 return -EBUSY; 80 } 81 82 /* also validate MU-MIMO change */ 83 monitor_sdata = rtnl_dereference(local->monitor_sdata); 84 85 if (!monitor_sdata && 86 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 87 return -EOPNOTSUPP; 88 89 /* apply all changes now - no failures allowed */ 90 91 if (monitor_sdata) 92 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 93 94 if (params->flags) { 95 if (ieee80211_sdata_running(sdata)) { 96 ieee80211_adjust_monitor_flags(sdata, -1); 97 sdata->u.mntr.flags = params->flags; 98 ieee80211_adjust_monitor_flags(sdata, 1); 99 100 ieee80211_configure_filter(local); 101 } else { 102 /* 103 * Because the interface is down, ieee80211_do_stop 104 * and ieee80211_do_open take care of "everything" 105 * mentioned in the comment above. 106 */ 107 sdata->u.mntr.flags = params->flags; 108 } 109 } 110 111 return 0; 112 } 113 114 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 115 const char *name, 116 unsigned char name_assign_type, 117 enum nl80211_iftype type, 118 struct vif_params *params) 119 { 120 struct ieee80211_local *local = wiphy_priv(wiphy); 121 struct wireless_dev *wdev; 122 struct ieee80211_sub_if_data *sdata; 123 int err; 124 125 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 126 if (err) 127 return ERR_PTR(err); 128 129 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 130 131 if (type == NL80211_IFTYPE_MONITOR) { 132 err = ieee80211_set_mon_options(sdata, params); 133 if (err) { 134 ieee80211_if_remove(sdata); 135 return NULL; 136 } 137 } 138 139 return wdev; 140 } 141 142 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 143 { 144 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 145 146 return 0; 147 } 148 149 static int ieee80211_change_iface(struct wiphy *wiphy, 150 struct net_device *dev, 151 enum nl80211_iftype type, 152 struct vif_params *params) 153 { 154 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 155 int ret; 156 157 ret = ieee80211_if_change_type(sdata, type); 158 if (ret) 159 return ret; 160 161 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 162 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 163 ieee80211_check_fast_rx_iface(sdata); 164 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 165 sdata->u.mgd.use_4addr = params->use_4addr; 166 } 167 168 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 169 ret = ieee80211_set_mon_options(sdata, params); 170 if (ret) 171 return ret; 172 } 173 174 return 0; 175 } 176 177 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 178 struct wireless_dev *wdev) 179 { 180 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 181 int ret; 182 183 mutex_lock(&sdata->local->chanctx_mtx); 184 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 185 mutex_unlock(&sdata->local->chanctx_mtx); 186 if (ret < 0) 187 return ret; 188 189 return ieee80211_do_open(wdev, true); 190 } 191 192 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 193 struct wireless_dev *wdev) 194 { 195 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 196 } 197 198 static int ieee80211_start_nan(struct wiphy *wiphy, 199 struct wireless_dev *wdev, 200 struct cfg80211_nan_conf *conf) 201 { 202 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 203 int ret; 204 205 mutex_lock(&sdata->local->chanctx_mtx); 206 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 207 mutex_unlock(&sdata->local->chanctx_mtx); 208 if (ret < 0) 209 return ret; 210 211 ret = ieee80211_do_open(wdev, true); 212 if (ret) 213 return ret; 214 215 ret = drv_start_nan(sdata->local, sdata, conf); 216 if (ret) 217 ieee80211_sdata_stop(sdata); 218 219 sdata->u.nan.conf = *conf; 220 221 return ret; 222 } 223 224 static void ieee80211_stop_nan(struct wiphy *wiphy, 225 struct wireless_dev *wdev) 226 { 227 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 228 229 drv_stop_nan(sdata->local, sdata); 230 ieee80211_sdata_stop(sdata); 231 } 232 233 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 234 struct wireless_dev *wdev, 235 struct cfg80211_nan_conf *conf, 236 u32 changes) 237 { 238 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 239 struct cfg80211_nan_conf new_conf; 240 int ret = 0; 241 242 if (sdata->vif.type != NL80211_IFTYPE_NAN) 243 return -EOPNOTSUPP; 244 245 if (!ieee80211_sdata_running(sdata)) 246 return -ENETDOWN; 247 248 new_conf = sdata->u.nan.conf; 249 250 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 251 new_conf.master_pref = conf->master_pref; 252 253 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 254 new_conf.bands = conf->bands; 255 256 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 257 if (!ret) 258 sdata->u.nan.conf = new_conf; 259 260 return ret; 261 } 262 263 static int ieee80211_add_nan_func(struct wiphy *wiphy, 264 struct wireless_dev *wdev, 265 struct cfg80211_nan_func *nan_func) 266 { 267 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 268 int ret; 269 270 if (sdata->vif.type != NL80211_IFTYPE_NAN) 271 return -EOPNOTSUPP; 272 273 if (!ieee80211_sdata_running(sdata)) 274 return -ENETDOWN; 275 276 spin_lock_bh(&sdata->u.nan.func_lock); 277 278 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 279 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 280 GFP_ATOMIC); 281 spin_unlock_bh(&sdata->u.nan.func_lock); 282 283 if (ret < 0) 284 return ret; 285 286 nan_func->instance_id = ret; 287 288 WARN_ON(nan_func->instance_id == 0); 289 290 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 291 if (ret) { 292 spin_lock_bh(&sdata->u.nan.func_lock); 293 idr_remove(&sdata->u.nan.function_inst_ids, 294 nan_func->instance_id); 295 spin_unlock_bh(&sdata->u.nan.func_lock); 296 } 297 298 return ret; 299 } 300 301 static struct cfg80211_nan_func * 302 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 303 u64 cookie) 304 { 305 struct cfg80211_nan_func *func; 306 int id; 307 308 lockdep_assert_held(&sdata->u.nan.func_lock); 309 310 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 311 if (func->cookie == cookie) 312 return func; 313 } 314 315 return NULL; 316 } 317 318 static void ieee80211_del_nan_func(struct wiphy *wiphy, 319 struct wireless_dev *wdev, u64 cookie) 320 { 321 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 322 struct cfg80211_nan_func *func; 323 u8 instance_id = 0; 324 325 if (sdata->vif.type != NL80211_IFTYPE_NAN || 326 !ieee80211_sdata_running(sdata)) 327 return; 328 329 spin_lock_bh(&sdata->u.nan.func_lock); 330 331 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 332 if (func) 333 instance_id = func->instance_id; 334 335 spin_unlock_bh(&sdata->u.nan.func_lock); 336 337 if (instance_id) 338 drv_del_nan_func(sdata->local, sdata, instance_id); 339 } 340 341 static int ieee80211_set_noack_map(struct wiphy *wiphy, 342 struct net_device *dev, 343 u16 noack_map) 344 { 345 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 346 347 sdata->noack_map = noack_map; 348 349 ieee80211_check_fast_xmit_iface(sdata); 350 351 return 0; 352 } 353 354 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 355 const u8 *mac_addr, u8 key_idx) 356 { 357 struct ieee80211_local *local = sdata->local; 358 struct ieee80211_key *key; 359 struct sta_info *sta; 360 int ret = -EINVAL; 361 362 if (!wiphy_ext_feature_isset(local->hw.wiphy, 363 NL80211_EXT_FEATURE_EXT_KEY_ID)) 364 return -EINVAL; 365 366 sta = sta_info_get_bss(sdata, mac_addr); 367 368 if (!sta) 369 return -EINVAL; 370 371 if (sta->ptk_idx == key_idx) 372 return 0; 373 374 mutex_lock(&local->key_mtx); 375 key = key_mtx_dereference(local, sta->ptk[key_idx]); 376 377 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 378 ret = ieee80211_set_tx_key(key); 379 380 mutex_unlock(&local->key_mtx); 381 return ret; 382 } 383 384 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 385 u8 key_idx, bool pairwise, const u8 *mac_addr, 386 struct key_params *params) 387 { 388 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 389 struct ieee80211_local *local = sdata->local; 390 struct sta_info *sta = NULL; 391 const struct ieee80211_cipher_scheme *cs = NULL; 392 struct ieee80211_key *key; 393 int err; 394 395 if (!ieee80211_sdata_running(sdata)) 396 return -ENETDOWN; 397 398 if (pairwise && params->mode == NL80211_KEY_SET_TX) 399 return ieee80211_set_tx(sdata, mac_addr, key_idx); 400 401 /* reject WEP and TKIP keys if WEP failed to initialize */ 402 switch (params->cipher) { 403 case WLAN_CIPHER_SUITE_WEP40: 404 case WLAN_CIPHER_SUITE_TKIP: 405 case WLAN_CIPHER_SUITE_WEP104: 406 if (WARN_ON_ONCE(fips_enabled)) 407 return -EINVAL; 408 case WLAN_CIPHER_SUITE_CCMP: 409 case WLAN_CIPHER_SUITE_CCMP_256: 410 case WLAN_CIPHER_SUITE_AES_CMAC: 411 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 412 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 413 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 414 case WLAN_CIPHER_SUITE_GCMP: 415 case WLAN_CIPHER_SUITE_GCMP_256: 416 break; 417 default: 418 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); 419 break; 420 } 421 422 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 423 params->key, params->seq_len, params->seq, 424 cs); 425 if (IS_ERR(key)) 426 return PTR_ERR(key); 427 428 if (pairwise) 429 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 430 431 if (params->mode == NL80211_KEY_NO_TX) 432 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 433 434 mutex_lock(&local->sta_mtx); 435 436 if (mac_addr) { 437 sta = sta_info_get_bss(sdata, mac_addr); 438 /* 439 * The ASSOC test makes sure the driver is ready to 440 * receive the key. When wpa_supplicant has roamed 441 * using FT, it attempts to set the key before 442 * association has completed, this rejects that attempt 443 * so it will set the key again after association. 444 * 445 * TODO: accept the key if we have a station entry and 446 * add it to the device after the station. 447 */ 448 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 449 ieee80211_key_free_unused(key); 450 err = -ENOENT; 451 goto out_unlock; 452 } 453 } 454 455 switch (sdata->vif.type) { 456 case NL80211_IFTYPE_STATION: 457 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 458 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 459 break; 460 case NL80211_IFTYPE_AP: 461 case NL80211_IFTYPE_AP_VLAN: 462 /* Keys without a station are used for TX only */ 463 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 464 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 465 break; 466 case NL80211_IFTYPE_ADHOC: 467 /* no MFP (yet) */ 468 break; 469 case NL80211_IFTYPE_MESH_POINT: 470 #ifdef CONFIG_MAC80211_MESH 471 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 472 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 473 break; 474 #endif 475 case NL80211_IFTYPE_WDS: 476 case NL80211_IFTYPE_MONITOR: 477 case NL80211_IFTYPE_P2P_DEVICE: 478 case NL80211_IFTYPE_NAN: 479 case NL80211_IFTYPE_UNSPECIFIED: 480 case NUM_NL80211_IFTYPES: 481 case NL80211_IFTYPE_P2P_CLIENT: 482 case NL80211_IFTYPE_P2P_GO: 483 case NL80211_IFTYPE_OCB: 484 /* shouldn't happen */ 485 WARN_ON_ONCE(1); 486 break; 487 } 488 489 if (sta) 490 sta->cipher_scheme = cs; 491 492 err = ieee80211_key_link(key, sdata, sta); 493 494 out_unlock: 495 mutex_unlock(&local->sta_mtx); 496 497 return err; 498 } 499 500 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 501 u8 key_idx, bool pairwise, const u8 *mac_addr) 502 { 503 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 504 struct ieee80211_local *local = sdata->local; 505 struct sta_info *sta; 506 struct ieee80211_key *key = NULL; 507 int ret; 508 509 mutex_lock(&local->sta_mtx); 510 mutex_lock(&local->key_mtx); 511 512 if (mac_addr) { 513 ret = -ENOENT; 514 515 sta = sta_info_get_bss(sdata, mac_addr); 516 if (!sta) 517 goto out_unlock; 518 519 if (pairwise) 520 key = key_mtx_dereference(local, sta->ptk[key_idx]); 521 else 522 key = key_mtx_dereference(local, sta->gtk[key_idx]); 523 } else 524 key = key_mtx_dereference(local, sdata->keys[key_idx]); 525 526 if (!key) { 527 ret = -ENOENT; 528 goto out_unlock; 529 } 530 531 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 532 533 ret = 0; 534 out_unlock: 535 mutex_unlock(&local->key_mtx); 536 mutex_unlock(&local->sta_mtx); 537 538 return ret; 539 } 540 541 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 542 u8 key_idx, bool pairwise, const u8 *mac_addr, 543 void *cookie, 544 void (*callback)(void *cookie, 545 struct key_params *params)) 546 { 547 struct ieee80211_sub_if_data *sdata; 548 struct sta_info *sta = NULL; 549 u8 seq[6] = {0}; 550 struct key_params params; 551 struct ieee80211_key *key = NULL; 552 u64 pn64; 553 u32 iv32; 554 u16 iv16; 555 int err = -ENOENT; 556 struct ieee80211_key_seq kseq = {}; 557 558 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 559 560 rcu_read_lock(); 561 562 if (mac_addr) { 563 sta = sta_info_get_bss(sdata, mac_addr); 564 if (!sta) 565 goto out; 566 567 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 568 key = rcu_dereference(sta->ptk[key_idx]); 569 else if (!pairwise && 570 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS + 571 NUM_DEFAULT_BEACON_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 fallthrough; 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 fallthrough; 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 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 684 struct net_device *dev, 685 u8 key_idx) 686 { 687 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 688 689 ieee80211_set_default_beacon_key(sdata, key_idx); 690 691 return 0; 692 } 693 694 void sta_set_rate_info_tx(struct sta_info *sta, 695 const struct ieee80211_tx_rate *rate, 696 struct rate_info *rinfo) 697 { 698 rinfo->flags = 0; 699 if (rate->flags & IEEE80211_TX_RC_MCS) { 700 rinfo->flags |= RATE_INFO_FLAGS_MCS; 701 rinfo->mcs = rate->idx; 702 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 703 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 704 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 705 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 706 } else { 707 struct ieee80211_supported_band *sband; 708 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 709 u16 brate; 710 711 sband = ieee80211_get_sband(sta->sdata); 712 if (sband) { 713 brate = sband->bitrates[rate->idx].bitrate; 714 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 715 } 716 } 717 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 718 rinfo->bw = RATE_INFO_BW_40; 719 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 720 rinfo->bw = RATE_INFO_BW_80; 721 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 722 rinfo->bw = RATE_INFO_BW_160; 723 else 724 rinfo->bw = RATE_INFO_BW_20; 725 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 726 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 727 } 728 729 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 730 int idx, u8 *mac, struct station_info *sinfo) 731 { 732 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 733 struct ieee80211_local *local = sdata->local; 734 struct sta_info *sta; 735 int ret = -ENOENT; 736 737 mutex_lock(&local->sta_mtx); 738 739 sta = sta_info_get_by_idx(sdata, idx); 740 if (sta) { 741 ret = 0; 742 memcpy(mac, sta->sta.addr, ETH_ALEN); 743 sta_set_sinfo(sta, sinfo, true); 744 } 745 746 mutex_unlock(&local->sta_mtx); 747 748 return ret; 749 } 750 751 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 752 int idx, struct survey_info *survey) 753 { 754 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 755 756 return drv_get_survey(local, idx, survey); 757 } 758 759 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 760 const u8 *mac, struct station_info *sinfo) 761 { 762 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 763 struct ieee80211_local *local = sdata->local; 764 struct sta_info *sta; 765 int ret = -ENOENT; 766 767 mutex_lock(&local->sta_mtx); 768 769 sta = sta_info_get_bss(sdata, mac); 770 if (sta) { 771 ret = 0; 772 sta_set_sinfo(sta, sinfo, true); 773 } 774 775 mutex_unlock(&local->sta_mtx); 776 777 return ret; 778 } 779 780 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 781 struct cfg80211_chan_def *chandef) 782 { 783 struct ieee80211_local *local = wiphy_priv(wiphy); 784 struct ieee80211_sub_if_data *sdata; 785 int ret = 0; 786 787 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 788 return 0; 789 790 mutex_lock(&local->mtx); 791 if (local->use_chanctx) { 792 sdata = rtnl_dereference(local->monitor_sdata); 793 if (sdata) { 794 ieee80211_vif_release_channel(sdata); 795 ret = ieee80211_vif_use_channel(sdata, chandef, 796 IEEE80211_CHANCTX_EXCLUSIVE); 797 } 798 } else if (local->open_count == local->monitors) { 799 local->_oper_chandef = *chandef; 800 ieee80211_hw_config(local, 0); 801 } 802 803 if (ret == 0) 804 local->monitor_chandef = *chandef; 805 mutex_unlock(&local->mtx); 806 807 return ret; 808 } 809 810 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 811 const u8 *resp, size_t resp_len, 812 const struct ieee80211_csa_settings *csa) 813 { 814 struct probe_resp *new, *old; 815 816 if (!resp || !resp_len) 817 return 1; 818 819 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 820 821 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 822 if (!new) 823 return -ENOMEM; 824 825 new->len = resp_len; 826 memcpy(new->data, resp, resp_len); 827 828 if (csa) 829 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp, 830 csa->n_counter_offsets_presp * 831 sizeof(new->csa_counter_offsets[0])); 832 833 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 834 if (old) 835 kfree_rcu(old, rcu_head); 836 837 return 0; 838 } 839 840 static int ieee80211_set_ftm_responder_params( 841 struct ieee80211_sub_if_data *sdata, 842 const u8 *lci, size_t lci_len, 843 const u8 *civicloc, size_t civicloc_len) 844 { 845 struct ieee80211_ftm_responder_params *new, *old; 846 struct ieee80211_bss_conf *bss_conf; 847 u8 *pos; 848 int len; 849 850 if (!lci_len && !civicloc_len) 851 return 0; 852 853 bss_conf = &sdata->vif.bss_conf; 854 old = bss_conf->ftmr_params; 855 len = lci_len + civicloc_len; 856 857 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 858 if (!new) 859 return -ENOMEM; 860 861 pos = (u8 *)(new + 1); 862 if (lci_len) { 863 new->lci_len = lci_len; 864 new->lci = pos; 865 memcpy(pos, lci, lci_len); 866 pos += lci_len; 867 } 868 869 if (civicloc_len) { 870 new->civicloc_len = civicloc_len; 871 new->civicloc = pos; 872 memcpy(pos, civicloc, civicloc_len); 873 pos += civicloc_len; 874 } 875 876 bss_conf->ftmr_params = new; 877 kfree(old); 878 879 return 0; 880 } 881 882 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 883 struct cfg80211_beacon_data *params, 884 const struct ieee80211_csa_settings *csa) 885 { 886 struct beacon_data *new, *old; 887 int new_head_len, new_tail_len; 888 int size, err; 889 u32 changed = BSS_CHANGED_BEACON; 890 891 old = sdata_dereference(sdata->u.ap.beacon, sdata); 892 893 894 /* Need to have a beacon head if we don't have one yet */ 895 if (!params->head && !old) 896 return -EINVAL; 897 898 /* new or old head? */ 899 if (params->head) 900 new_head_len = params->head_len; 901 else 902 new_head_len = old->head_len; 903 904 /* new or old tail? */ 905 if (params->tail || !old) 906 /* params->tail_len will be zero for !params->tail */ 907 new_tail_len = params->tail_len; 908 else 909 new_tail_len = old->tail_len; 910 911 size = sizeof(*new) + new_head_len + new_tail_len; 912 913 new = kzalloc(size, GFP_KERNEL); 914 if (!new) 915 return -ENOMEM; 916 917 /* start filling the new info now */ 918 919 /* 920 * pointers go into the block we allocated, 921 * memory is | beacon_data | head | tail | 922 */ 923 new->head = ((u8 *) new) + sizeof(*new); 924 new->tail = new->head + new_head_len; 925 new->head_len = new_head_len; 926 new->tail_len = new_tail_len; 927 928 if (csa) { 929 new->csa_current_counter = csa->count; 930 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon, 931 csa->n_counter_offsets_beacon * 932 sizeof(new->csa_counter_offsets[0])); 933 } 934 935 /* copy in head */ 936 if (params->head) 937 memcpy(new->head, params->head, new_head_len); 938 else 939 memcpy(new->head, old->head, new_head_len); 940 941 /* copy in optional tail */ 942 if (params->tail) 943 memcpy(new->tail, params->tail, new_tail_len); 944 else 945 if (old) 946 memcpy(new->tail, old->tail, new_tail_len); 947 948 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 949 params->probe_resp_len, csa); 950 if (err < 0) { 951 kfree(new); 952 return err; 953 } 954 if (err == 0) 955 changed |= BSS_CHANGED_AP_PROBE_RESP; 956 957 if (params->ftm_responder != -1) { 958 sdata->vif.bss_conf.ftm_responder = params->ftm_responder; 959 err = ieee80211_set_ftm_responder_params(sdata, 960 params->lci, 961 params->lci_len, 962 params->civicloc, 963 params->civicloc_len); 964 965 if (err < 0) { 966 kfree(new); 967 return err; 968 } 969 970 changed |= BSS_CHANGED_FTM_RESPONDER; 971 } 972 973 rcu_assign_pointer(sdata->u.ap.beacon, new); 974 975 if (old) 976 kfree_rcu(old, rcu_head); 977 978 return changed; 979 } 980 981 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 982 struct cfg80211_ap_settings *params) 983 { 984 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 985 struct ieee80211_local *local = sdata->local; 986 struct beacon_data *old; 987 struct ieee80211_sub_if_data *vlan; 988 u32 changed = BSS_CHANGED_BEACON_INT | 989 BSS_CHANGED_BEACON_ENABLED | 990 BSS_CHANGED_BEACON | 991 BSS_CHANGED_SSID | 992 BSS_CHANGED_P2P_PS | 993 BSS_CHANGED_TXPOWER | 994 BSS_CHANGED_TWT; 995 int i, err; 996 int prev_beacon_int; 997 998 old = sdata_dereference(sdata->u.ap.beacon, sdata); 999 if (old) 1000 return -EALREADY; 1001 1002 if (params->smps_mode != NL80211_SMPS_OFF) 1003 return -ENOTSUPP; 1004 1005 sdata->smps_mode = IEEE80211_SMPS_OFF; 1006 1007 sdata->needed_rx_chains = sdata->local->rx_chains; 1008 1009 prev_beacon_int = sdata->vif.bss_conf.beacon_int; 1010 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 1011 1012 if (params->he_cap && params->he_oper) { 1013 sdata->vif.bss_conf.he_support = true; 1014 sdata->vif.bss_conf.htc_trig_based_pkt_ext = 1015 le32_get_bits(params->he_oper->he_oper_params, 1016 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1017 sdata->vif.bss_conf.frame_time_rts_th = 1018 le32_get_bits(params->he_oper->he_oper_params, 1019 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1020 changed |= BSS_CHANGED_HE_OBSS_PD; 1021 1022 if (params->he_bss_color.enabled) 1023 changed |= BSS_CHANGED_HE_BSS_COLOR; 1024 } 1025 1026 mutex_lock(&local->mtx); 1027 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 1028 IEEE80211_CHANCTX_SHARED); 1029 if (!err) 1030 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 1031 mutex_unlock(&local->mtx); 1032 if (err) { 1033 sdata->vif.bss_conf.beacon_int = prev_beacon_int; 1034 return err; 1035 } 1036 1037 /* 1038 * Apply control port protocol, this allows us to 1039 * not encrypt dynamic WEP control frames. 1040 */ 1041 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1042 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1043 sdata->control_port_over_nl80211 = 1044 params->crypto.control_port_over_nl80211; 1045 sdata->control_port_no_preauth = 1046 params->crypto.control_port_no_preauth; 1047 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 1048 ¶ms->crypto, 1049 sdata->vif.type); 1050 1051 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1052 vlan->control_port_protocol = 1053 params->crypto.control_port_ethertype; 1054 vlan->control_port_no_encrypt = 1055 params->crypto.control_port_no_encrypt; 1056 vlan->control_port_over_nl80211 = 1057 params->crypto.control_port_over_nl80211; 1058 vlan->control_port_no_preauth = 1059 params->crypto.control_port_no_preauth; 1060 vlan->encrypt_headroom = 1061 ieee80211_cs_headroom(sdata->local, 1062 ¶ms->crypto, 1063 vlan->vif.type); 1064 } 1065 1066 sdata->vif.bss_conf.dtim_period = params->dtim_period; 1067 sdata->vif.bss_conf.enable_beacon = true; 1068 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 1069 sdata->vif.bss_conf.twt_responder = params->twt_responder; 1070 memcpy(&sdata->vif.bss_conf.he_obss_pd, ¶ms->he_obss_pd, 1071 sizeof(struct ieee80211_he_obss_pd)); 1072 memcpy(&sdata->vif.bss_conf.he_bss_color, ¶ms->he_bss_color, 1073 sizeof(struct ieee80211_he_bss_color)); 1074 1075 sdata->vif.bss_conf.ssid_len = params->ssid_len; 1076 if (params->ssid_len) 1077 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 1078 params->ssid_len); 1079 sdata->vif.bss_conf.hidden_ssid = 1080 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1081 1082 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 1083 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 1084 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 1085 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1086 if (params->p2p_opp_ps) 1087 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1088 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1089 1090 sdata->beacon_rate_set = false; 1091 if (wiphy_ext_feature_isset(local->hw.wiphy, 1092 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1093 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1094 sdata->beacon_rateidx_mask[i] = 1095 params->beacon_rate.control[i].legacy; 1096 if (sdata->beacon_rateidx_mask[i]) 1097 sdata->beacon_rate_set = true; 1098 } 1099 } 1100 1101 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); 1102 if (err < 0) { 1103 ieee80211_vif_release_channel(sdata); 1104 return err; 1105 } 1106 changed |= err; 1107 1108 err = drv_start_ap(sdata->local, sdata); 1109 if (err) { 1110 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1111 1112 if (old) 1113 kfree_rcu(old, rcu_head); 1114 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1115 ieee80211_vif_release_channel(sdata); 1116 return err; 1117 } 1118 1119 ieee80211_recalc_dtim(local, sdata); 1120 ieee80211_bss_info_change_notify(sdata, changed); 1121 1122 netif_carrier_on(dev); 1123 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1124 netif_carrier_on(vlan->dev); 1125 1126 return 0; 1127 } 1128 1129 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1130 struct cfg80211_beacon_data *params) 1131 { 1132 struct ieee80211_sub_if_data *sdata; 1133 struct beacon_data *old; 1134 int err; 1135 1136 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1137 sdata_assert_lock(sdata); 1138 1139 /* don't allow changing the beacon while CSA is in place - offset 1140 * of channel switch counter may change 1141 */ 1142 if (sdata->vif.csa_active) 1143 return -EBUSY; 1144 1145 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1146 if (!old) 1147 return -ENOENT; 1148 1149 err = ieee80211_assign_beacon(sdata, params, NULL); 1150 if (err < 0) 1151 return err; 1152 ieee80211_bss_info_change_notify(sdata, err); 1153 return 0; 1154 } 1155 1156 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1157 { 1158 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1159 struct ieee80211_sub_if_data *vlan; 1160 struct ieee80211_local *local = sdata->local; 1161 struct beacon_data *old_beacon; 1162 struct probe_resp *old_probe_resp; 1163 struct cfg80211_chan_def chandef; 1164 1165 sdata_assert_lock(sdata); 1166 1167 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1168 if (!old_beacon) 1169 return -ENOENT; 1170 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1171 1172 /* abort any running channel switch */ 1173 mutex_lock(&local->mtx); 1174 sdata->vif.csa_active = false; 1175 if (sdata->csa_block_tx) { 1176 ieee80211_wake_vif_queues(local, sdata, 1177 IEEE80211_QUEUE_STOP_REASON_CSA); 1178 sdata->csa_block_tx = false; 1179 } 1180 1181 mutex_unlock(&local->mtx); 1182 1183 kfree(sdata->u.ap.next_beacon); 1184 sdata->u.ap.next_beacon = NULL; 1185 1186 /* turn off carrier for this interface and dependent VLANs */ 1187 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1188 netif_carrier_off(vlan->dev); 1189 netif_carrier_off(dev); 1190 1191 /* remove beacon and probe response */ 1192 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1193 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1194 kfree_rcu(old_beacon, rcu_head); 1195 if (old_probe_resp) 1196 kfree_rcu(old_probe_resp, rcu_head); 1197 1198 kfree(sdata->vif.bss_conf.ftmr_params); 1199 sdata->vif.bss_conf.ftmr_params = NULL; 1200 1201 __sta_info_flush(sdata, true); 1202 ieee80211_free_keys(sdata, true); 1203 1204 sdata->vif.bss_conf.enable_beacon = false; 1205 sdata->beacon_rate_set = false; 1206 sdata->vif.bss_conf.ssid_len = 0; 1207 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1208 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1209 1210 if (sdata->wdev.cac_started) { 1211 chandef = sdata->vif.bss_conf.chandef; 1212 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1213 cfg80211_cac_event(sdata->dev, &chandef, 1214 NL80211_RADAR_CAC_ABORTED, 1215 GFP_KERNEL); 1216 } 1217 1218 drv_stop_ap(sdata->local, sdata); 1219 1220 /* free all potentially still buffered bcast frames */ 1221 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1222 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1223 1224 mutex_lock(&local->mtx); 1225 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1226 ieee80211_vif_release_channel(sdata); 1227 mutex_unlock(&local->mtx); 1228 1229 return 0; 1230 } 1231 1232 static int sta_apply_auth_flags(struct ieee80211_local *local, 1233 struct sta_info *sta, 1234 u32 mask, u32 set) 1235 { 1236 int ret; 1237 1238 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1239 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1240 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1241 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1242 if (ret) 1243 return ret; 1244 } 1245 1246 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1247 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1248 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1249 /* 1250 * When peer becomes associated, init rate control as 1251 * well. Some drivers require rate control initialized 1252 * before drv_sta_state() is called. 1253 */ 1254 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1255 rate_control_rate_init(sta); 1256 1257 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1258 if (ret) 1259 return ret; 1260 } 1261 1262 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1263 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1264 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1265 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1266 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1267 else 1268 ret = 0; 1269 if (ret) 1270 return ret; 1271 } 1272 1273 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1274 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1275 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1276 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1277 if (ret) 1278 return ret; 1279 } 1280 1281 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1282 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1283 test_sta_flag(sta, WLAN_STA_AUTH)) { 1284 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1285 if (ret) 1286 return ret; 1287 } 1288 1289 return 0; 1290 } 1291 1292 static void sta_apply_mesh_params(struct ieee80211_local *local, 1293 struct sta_info *sta, 1294 struct station_parameters *params) 1295 { 1296 #ifdef CONFIG_MAC80211_MESH 1297 struct ieee80211_sub_if_data *sdata = sta->sdata; 1298 u32 changed = 0; 1299 1300 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1301 switch (params->plink_state) { 1302 case NL80211_PLINK_ESTAB: 1303 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1304 changed = mesh_plink_inc_estab_count(sdata); 1305 sta->mesh->plink_state = params->plink_state; 1306 sta->mesh->aid = params->peer_aid; 1307 1308 ieee80211_mps_sta_status_update(sta); 1309 changed |= ieee80211_mps_set_sta_local_pm(sta, 1310 sdata->u.mesh.mshcfg.power_mode); 1311 1312 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1313 /* init at low value */ 1314 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1315 1316 break; 1317 case NL80211_PLINK_LISTEN: 1318 case NL80211_PLINK_BLOCKED: 1319 case NL80211_PLINK_OPN_SNT: 1320 case NL80211_PLINK_OPN_RCVD: 1321 case NL80211_PLINK_CNF_RCVD: 1322 case NL80211_PLINK_HOLDING: 1323 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1324 changed = mesh_plink_dec_estab_count(sdata); 1325 sta->mesh->plink_state = params->plink_state; 1326 1327 ieee80211_mps_sta_status_update(sta); 1328 changed |= ieee80211_mps_set_sta_local_pm(sta, 1329 NL80211_MESH_POWER_UNKNOWN); 1330 break; 1331 default: 1332 /* nothing */ 1333 break; 1334 } 1335 } 1336 1337 switch (params->plink_action) { 1338 case NL80211_PLINK_ACTION_NO_ACTION: 1339 /* nothing */ 1340 break; 1341 case NL80211_PLINK_ACTION_OPEN: 1342 changed |= mesh_plink_open(sta); 1343 break; 1344 case NL80211_PLINK_ACTION_BLOCK: 1345 changed |= mesh_plink_block(sta); 1346 break; 1347 } 1348 1349 if (params->local_pm) 1350 changed |= ieee80211_mps_set_sta_local_pm(sta, 1351 params->local_pm); 1352 1353 ieee80211_mbss_info_change_notify(sdata, changed); 1354 #endif 1355 } 1356 1357 static int sta_apply_parameters(struct ieee80211_local *local, 1358 struct sta_info *sta, 1359 struct station_parameters *params) 1360 { 1361 int ret = 0; 1362 struct ieee80211_supported_band *sband; 1363 struct ieee80211_sub_if_data *sdata = sta->sdata; 1364 u32 mask, set; 1365 1366 sband = ieee80211_get_sband(sdata); 1367 if (!sband) 1368 return -EINVAL; 1369 1370 mask = params->sta_flags_mask; 1371 set = params->sta_flags_set; 1372 1373 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1374 /* 1375 * In mesh mode, ASSOCIATED isn't part of the nl80211 1376 * API but must follow AUTHENTICATED for driver state. 1377 */ 1378 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1379 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1380 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1381 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1382 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1383 /* 1384 * TDLS -- everything follows authorized, but 1385 * only becoming authorized is possible, not 1386 * going back 1387 */ 1388 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1389 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1390 BIT(NL80211_STA_FLAG_ASSOCIATED); 1391 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1392 BIT(NL80211_STA_FLAG_ASSOCIATED); 1393 } 1394 } 1395 1396 if (mask & BIT(NL80211_STA_FLAG_WME) && 1397 local->hw.queues >= IEEE80211_NUM_ACS) 1398 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1399 1400 /* auth flags will be set later for TDLS, 1401 * and for unassociated stations that move to assocaited */ 1402 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1403 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1404 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1405 ret = sta_apply_auth_flags(local, sta, mask, set); 1406 if (ret) 1407 return ret; 1408 } 1409 1410 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1411 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1412 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1413 else 1414 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1415 } 1416 1417 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1418 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1419 if (set & BIT(NL80211_STA_FLAG_MFP)) 1420 set_sta_flag(sta, WLAN_STA_MFP); 1421 else 1422 clear_sta_flag(sta, WLAN_STA_MFP); 1423 } 1424 1425 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1426 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1427 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1428 else 1429 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1430 } 1431 1432 /* mark TDLS channel switch support, if the AP allows it */ 1433 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1434 !sdata->u.mgd.tdls_chan_switch_prohibited && 1435 params->ext_capab_len >= 4 && 1436 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1437 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1438 1439 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1440 !sdata->u.mgd.tdls_wider_bw_prohibited && 1441 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1442 params->ext_capab_len >= 8 && 1443 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1444 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1445 1446 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1447 sta->sta.uapsd_queues = params->uapsd_queues; 1448 sta->sta.max_sp = params->max_sp; 1449 } 1450 1451 /* The sender might not have sent the last bit, consider it to be 0 */ 1452 if (params->ext_capab_len >= 8) { 1453 u8 val = (params->ext_capab[7] & 1454 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1455 1456 /* we did get all the bits, take the MSB as well */ 1457 if (params->ext_capab_len >= 9) { 1458 u8 val_msb = params->ext_capab[8] & 1459 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1460 val_msb <<= 1; 1461 val |= val_msb; 1462 } 1463 1464 switch (val) { 1465 case 1: 1466 sta->sta.max_amsdu_subframes = 32; 1467 break; 1468 case 2: 1469 sta->sta.max_amsdu_subframes = 16; 1470 break; 1471 case 3: 1472 sta->sta.max_amsdu_subframes = 8; 1473 break; 1474 default: 1475 sta->sta.max_amsdu_subframes = 0; 1476 } 1477 } 1478 1479 /* 1480 * cfg80211 validates this (1-2007) and allows setting the AID 1481 * only when creating a new station entry 1482 */ 1483 if (params->aid) 1484 sta->sta.aid = params->aid; 1485 1486 /* 1487 * Some of the following updates would be racy if called on an 1488 * existing station, via ieee80211_change_station(). However, 1489 * all such changes are rejected by cfg80211 except for updates 1490 * changing the supported rates on an existing but not yet used 1491 * TDLS peer. 1492 */ 1493 1494 if (params->listen_interval >= 0) 1495 sta->listen_interval = params->listen_interval; 1496 1497 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) { 1498 sta->sta.txpwr.type = params->txpwr.type; 1499 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1500 sta->sta.txpwr.power = params->txpwr.power; 1501 ret = drv_sta_set_txpwr(local, sdata, sta); 1502 if (ret) 1503 return ret; 1504 } 1505 1506 if (params->supported_rates && params->supported_rates_len) { 1507 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1508 sband, params->supported_rates, 1509 params->supported_rates_len, 1510 &sta->sta.supp_rates[sband->band]); 1511 } 1512 1513 if (params->ht_capa) 1514 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1515 params->ht_capa, sta); 1516 1517 /* VHT can override some HT caps such as the A-MSDU max length */ 1518 if (params->vht_capa) 1519 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1520 params->vht_capa, sta); 1521 1522 if (params->he_capa) 1523 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1524 (void *)params->he_capa, 1525 params->he_capa_len, 1526 (void *)params->he_6ghz_capa, 1527 sta); 1528 1529 if (params->opmode_notif_used) { 1530 /* returned value is only needed for rc update, but the 1531 * rc isn't initialized here yet, so ignore it 1532 */ 1533 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1534 sband->band); 1535 } 1536 1537 if (params->support_p2p_ps >= 0) 1538 sta->sta.support_p2p_ps = params->support_p2p_ps; 1539 1540 if (ieee80211_vif_is_mesh(&sdata->vif)) 1541 sta_apply_mesh_params(local, sta, params); 1542 1543 if (params->airtime_weight) 1544 sta->airtime_weight = params->airtime_weight; 1545 1546 /* set the STA state after all sta info from usermode has been set */ 1547 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1548 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1549 ret = sta_apply_auth_flags(local, sta, mask, set); 1550 if (ret) 1551 return ret; 1552 } 1553 1554 return 0; 1555 } 1556 1557 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1558 const u8 *mac, 1559 struct station_parameters *params) 1560 { 1561 struct ieee80211_local *local = wiphy_priv(wiphy); 1562 struct sta_info *sta; 1563 struct ieee80211_sub_if_data *sdata; 1564 int err; 1565 1566 if (params->vlan) { 1567 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1568 1569 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1570 sdata->vif.type != NL80211_IFTYPE_AP) 1571 return -EINVAL; 1572 } else 1573 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1574 1575 if (ether_addr_equal(mac, sdata->vif.addr)) 1576 return -EINVAL; 1577 1578 if (!is_valid_ether_addr(mac)) 1579 return -EINVAL; 1580 1581 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 1582 sdata->vif.type == NL80211_IFTYPE_STATION && 1583 !sdata->u.mgd.associated) 1584 return -EINVAL; 1585 1586 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1587 if (!sta) 1588 return -ENOMEM; 1589 1590 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1591 sta->sta.tdls = true; 1592 1593 err = sta_apply_parameters(local, sta, params); 1594 if (err) { 1595 sta_info_free(local, sta); 1596 return err; 1597 } 1598 1599 /* 1600 * for TDLS and for unassociated station, rate control should be 1601 * initialized only when rates are known and station is marked 1602 * authorized/associated 1603 */ 1604 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1605 test_sta_flag(sta, WLAN_STA_ASSOC)) 1606 rate_control_rate_init(sta); 1607 1608 err = sta_info_insert_rcu(sta); 1609 if (err) { 1610 rcu_read_unlock(); 1611 return err; 1612 } 1613 1614 rcu_read_unlock(); 1615 1616 return 0; 1617 } 1618 1619 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1620 struct station_del_parameters *params) 1621 { 1622 struct ieee80211_sub_if_data *sdata; 1623 1624 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1625 1626 if (params->mac) 1627 return sta_info_destroy_addr_bss(sdata, params->mac); 1628 1629 sta_info_flush(sdata); 1630 return 0; 1631 } 1632 1633 static int ieee80211_change_station(struct wiphy *wiphy, 1634 struct net_device *dev, const u8 *mac, 1635 struct station_parameters *params) 1636 { 1637 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1638 struct ieee80211_local *local = wiphy_priv(wiphy); 1639 struct sta_info *sta; 1640 struct ieee80211_sub_if_data *vlansdata; 1641 enum cfg80211_station_type statype; 1642 int err; 1643 1644 mutex_lock(&local->sta_mtx); 1645 1646 sta = sta_info_get_bss(sdata, mac); 1647 if (!sta) { 1648 err = -ENOENT; 1649 goto out_err; 1650 } 1651 1652 switch (sdata->vif.type) { 1653 case NL80211_IFTYPE_MESH_POINT: 1654 if (sdata->u.mesh.user_mpm) 1655 statype = CFG80211_STA_MESH_PEER_USER; 1656 else 1657 statype = CFG80211_STA_MESH_PEER_KERNEL; 1658 break; 1659 case NL80211_IFTYPE_ADHOC: 1660 statype = CFG80211_STA_IBSS; 1661 break; 1662 case NL80211_IFTYPE_STATION: 1663 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1664 statype = CFG80211_STA_AP_STA; 1665 break; 1666 } 1667 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1668 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1669 else 1670 statype = CFG80211_STA_TDLS_PEER_SETUP; 1671 break; 1672 case NL80211_IFTYPE_AP: 1673 case NL80211_IFTYPE_AP_VLAN: 1674 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1675 statype = CFG80211_STA_AP_CLIENT; 1676 else 1677 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1678 break; 1679 default: 1680 err = -EOPNOTSUPP; 1681 goto out_err; 1682 } 1683 1684 err = cfg80211_check_station_change(wiphy, params, statype); 1685 if (err) 1686 goto out_err; 1687 1688 if (params->vlan && params->vlan != sta->sdata->dev) { 1689 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1690 1691 if (params->vlan->ieee80211_ptr->use_4addr) { 1692 if (vlansdata->u.vlan.sta) { 1693 err = -EBUSY; 1694 goto out_err; 1695 } 1696 1697 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1698 __ieee80211_check_fast_rx_iface(vlansdata); 1699 } 1700 1701 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1702 sta->sdata->u.vlan.sta) 1703 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1704 1705 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1706 ieee80211_vif_dec_num_mcast(sta->sdata); 1707 1708 sta->sdata = vlansdata; 1709 ieee80211_check_fast_xmit(sta); 1710 1711 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 1712 ieee80211_vif_inc_num_mcast(sta->sdata); 1713 cfg80211_send_layer2_update(sta->sdata->dev, 1714 sta->sta.addr); 1715 } 1716 } 1717 1718 err = sta_apply_parameters(local, sta, params); 1719 if (err) 1720 goto out_err; 1721 1722 mutex_unlock(&local->sta_mtx); 1723 1724 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1725 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1726 ieee80211_recalc_ps(local); 1727 ieee80211_recalc_ps_vif(sdata); 1728 } 1729 1730 return 0; 1731 out_err: 1732 mutex_unlock(&local->sta_mtx); 1733 return err; 1734 } 1735 1736 #ifdef CONFIG_MAC80211_MESH 1737 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1738 const u8 *dst, const u8 *next_hop) 1739 { 1740 struct ieee80211_sub_if_data *sdata; 1741 struct mesh_path *mpath; 1742 struct sta_info *sta; 1743 1744 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1745 1746 rcu_read_lock(); 1747 sta = sta_info_get(sdata, next_hop); 1748 if (!sta) { 1749 rcu_read_unlock(); 1750 return -ENOENT; 1751 } 1752 1753 mpath = mesh_path_add(sdata, dst); 1754 if (IS_ERR(mpath)) { 1755 rcu_read_unlock(); 1756 return PTR_ERR(mpath); 1757 } 1758 1759 mesh_path_fix_nexthop(mpath, sta); 1760 1761 rcu_read_unlock(); 1762 return 0; 1763 } 1764 1765 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1766 const u8 *dst) 1767 { 1768 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1769 1770 if (dst) 1771 return mesh_path_del(sdata, dst); 1772 1773 mesh_path_flush_by_iface(sdata); 1774 return 0; 1775 } 1776 1777 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1778 const u8 *dst, const u8 *next_hop) 1779 { 1780 struct ieee80211_sub_if_data *sdata; 1781 struct mesh_path *mpath; 1782 struct sta_info *sta; 1783 1784 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1785 1786 rcu_read_lock(); 1787 1788 sta = sta_info_get(sdata, next_hop); 1789 if (!sta) { 1790 rcu_read_unlock(); 1791 return -ENOENT; 1792 } 1793 1794 mpath = mesh_path_lookup(sdata, dst); 1795 if (!mpath) { 1796 rcu_read_unlock(); 1797 return -ENOENT; 1798 } 1799 1800 mesh_path_fix_nexthop(mpath, sta); 1801 1802 rcu_read_unlock(); 1803 return 0; 1804 } 1805 1806 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1807 struct mpath_info *pinfo) 1808 { 1809 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1810 1811 if (next_hop_sta) 1812 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1813 else 1814 eth_zero_addr(next_hop); 1815 1816 memset(pinfo, 0, sizeof(*pinfo)); 1817 1818 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1819 1820 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1821 MPATH_INFO_SN | 1822 MPATH_INFO_METRIC | 1823 MPATH_INFO_EXPTIME | 1824 MPATH_INFO_DISCOVERY_TIMEOUT | 1825 MPATH_INFO_DISCOVERY_RETRIES | 1826 MPATH_INFO_FLAGS | 1827 MPATH_INFO_HOP_COUNT | 1828 MPATH_INFO_PATH_CHANGE; 1829 1830 pinfo->frame_qlen = mpath->frame_queue.qlen; 1831 pinfo->sn = mpath->sn; 1832 pinfo->metric = mpath->metric; 1833 if (time_before(jiffies, mpath->exp_time)) 1834 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1835 pinfo->discovery_timeout = 1836 jiffies_to_msecs(mpath->discovery_timeout); 1837 pinfo->discovery_retries = mpath->discovery_retries; 1838 if (mpath->flags & MESH_PATH_ACTIVE) 1839 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1840 if (mpath->flags & MESH_PATH_RESOLVING) 1841 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1842 if (mpath->flags & MESH_PATH_SN_VALID) 1843 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1844 if (mpath->flags & MESH_PATH_FIXED) 1845 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1846 if (mpath->flags & MESH_PATH_RESOLVED) 1847 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1848 pinfo->hop_count = mpath->hop_count; 1849 pinfo->path_change_count = mpath->path_change_count; 1850 } 1851 1852 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1853 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1854 1855 { 1856 struct ieee80211_sub_if_data *sdata; 1857 struct mesh_path *mpath; 1858 1859 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1860 1861 rcu_read_lock(); 1862 mpath = mesh_path_lookup(sdata, dst); 1863 if (!mpath) { 1864 rcu_read_unlock(); 1865 return -ENOENT; 1866 } 1867 memcpy(dst, mpath->dst, ETH_ALEN); 1868 mpath_set_pinfo(mpath, next_hop, pinfo); 1869 rcu_read_unlock(); 1870 return 0; 1871 } 1872 1873 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1874 int idx, u8 *dst, u8 *next_hop, 1875 struct mpath_info *pinfo) 1876 { 1877 struct ieee80211_sub_if_data *sdata; 1878 struct mesh_path *mpath; 1879 1880 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1881 1882 rcu_read_lock(); 1883 mpath = mesh_path_lookup_by_idx(sdata, idx); 1884 if (!mpath) { 1885 rcu_read_unlock(); 1886 return -ENOENT; 1887 } 1888 memcpy(dst, mpath->dst, ETH_ALEN); 1889 mpath_set_pinfo(mpath, next_hop, pinfo); 1890 rcu_read_unlock(); 1891 return 0; 1892 } 1893 1894 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1895 struct mpath_info *pinfo) 1896 { 1897 memset(pinfo, 0, sizeof(*pinfo)); 1898 memcpy(mpp, mpath->mpp, ETH_ALEN); 1899 1900 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1901 } 1902 1903 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1904 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1905 1906 { 1907 struct ieee80211_sub_if_data *sdata; 1908 struct mesh_path *mpath; 1909 1910 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1911 1912 rcu_read_lock(); 1913 mpath = mpp_path_lookup(sdata, dst); 1914 if (!mpath) { 1915 rcu_read_unlock(); 1916 return -ENOENT; 1917 } 1918 memcpy(dst, mpath->dst, ETH_ALEN); 1919 mpp_set_pinfo(mpath, mpp, pinfo); 1920 rcu_read_unlock(); 1921 return 0; 1922 } 1923 1924 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1925 int idx, u8 *dst, u8 *mpp, 1926 struct mpath_info *pinfo) 1927 { 1928 struct ieee80211_sub_if_data *sdata; 1929 struct mesh_path *mpath; 1930 1931 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1932 1933 rcu_read_lock(); 1934 mpath = mpp_path_lookup_by_idx(sdata, idx); 1935 if (!mpath) { 1936 rcu_read_unlock(); 1937 return -ENOENT; 1938 } 1939 memcpy(dst, mpath->dst, ETH_ALEN); 1940 mpp_set_pinfo(mpath, mpp, pinfo); 1941 rcu_read_unlock(); 1942 return 0; 1943 } 1944 1945 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1946 struct net_device *dev, 1947 struct mesh_config *conf) 1948 { 1949 struct ieee80211_sub_if_data *sdata; 1950 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1951 1952 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1953 return 0; 1954 } 1955 1956 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1957 { 1958 return (mask >> (parm-1)) & 0x1; 1959 } 1960 1961 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1962 const struct mesh_setup *setup) 1963 { 1964 u8 *new_ie; 1965 const u8 *old_ie; 1966 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1967 struct ieee80211_sub_if_data, u.mesh); 1968 int i; 1969 1970 /* allocate information elements */ 1971 new_ie = NULL; 1972 old_ie = ifmsh->ie; 1973 1974 if (setup->ie_len) { 1975 new_ie = kmemdup(setup->ie, setup->ie_len, 1976 GFP_KERNEL); 1977 if (!new_ie) 1978 return -ENOMEM; 1979 } 1980 ifmsh->ie_len = setup->ie_len; 1981 ifmsh->ie = new_ie; 1982 kfree(old_ie); 1983 1984 /* now copy the rest of the setup parameters */ 1985 ifmsh->mesh_id_len = setup->mesh_id_len; 1986 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1987 ifmsh->mesh_sp_id = setup->sync_method; 1988 ifmsh->mesh_pp_id = setup->path_sel_proto; 1989 ifmsh->mesh_pm_id = setup->path_metric; 1990 ifmsh->user_mpm = setup->user_mpm; 1991 ifmsh->mesh_auth_id = setup->auth_id; 1992 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1993 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 1994 if (setup->is_authenticated) 1995 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1996 if (setup->is_secure) 1997 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1998 1999 /* mcast rate setting in Mesh Node */ 2000 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 2001 sizeof(setup->mcast_rate)); 2002 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2003 2004 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2005 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2006 2007 sdata->beacon_rate_set = false; 2008 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2009 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2010 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2011 sdata->beacon_rateidx_mask[i] = 2012 setup->beacon_rate.control[i].legacy; 2013 if (sdata->beacon_rateidx_mask[i]) 2014 sdata->beacon_rate_set = true; 2015 } 2016 } 2017 2018 return 0; 2019 } 2020 2021 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2022 struct net_device *dev, u32 mask, 2023 const struct mesh_config *nconf) 2024 { 2025 struct mesh_config *conf; 2026 struct ieee80211_sub_if_data *sdata; 2027 struct ieee80211_if_mesh *ifmsh; 2028 2029 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2030 ifmsh = &sdata->u.mesh; 2031 2032 /* Set the config options which we are interested in setting */ 2033 conf = &(sdata->u.mesh.mshcfg); 2034 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2035 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2036 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2037 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2038 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2039 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2040 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2041 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2042 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2043 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2044 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2045 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2046 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2047 conf->element_ttl = nconf->element_ttl; 2048 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2049 if (ifmsh->user_mpm) 2050 return -EBUSY; 2051 conf->auto_open_plinks = nconf->auto_open_plinks; 2052 } 2053 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2054 conf->dot11MeshNbrOffsetMaxNeighbor = 2055 nconf->dot11MeshNbrOffsetMaxNeighbor; 2056 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2057 conf->dot11MeshHWMPmaxPREQretries = 2058 nconf->dot11MeshHWMPmaxPREQretries; 2059 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2060 conf->path_refresh_time = nconf->path_refresh_time; 2061 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2062 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2063 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2064 conf->dot11MeshHWMPactivePathTimeout = 2065 nconf->dot11MeshHWMPactivePathTimeout; 2066 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2067 conf->dot11MeshHWMPpreqMinInterval = 2068 nconf->dot11MeshHWMPpreqMinInterval; 2069 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2070 conf->dot11MeshHWMPperrMinInterval = 2071 nconf->dot11MeshHWMPperrMinInterval; 2072 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2073 mask)) 2074 conf->dot11MeshHWMPnetDiameterTraversalTime = 2075 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2076 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2077 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2078 ieee80211_mesh_root_setup(ifmsh); 2079 } 2080 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2081 /* our current gate announcement implementation rides on root 2082 * announcements, so require this ifmsh to also be a root node 2083 * */ 2084 if (nconf->dot11MeshGateAnnouncementProtocol && 2085 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2086 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2087 ieee80211_mesh_root_setup(ifmsh); 2088 } 2089 conf->dot11MeshGateAnnouncementProtocol = 2090 nconf->dot11MeshGateAnnouncementProtocol; 2091 } 2092 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2093 conf->dot11MeshHWMPRannInterval = 2094 nconf->dot11MeshHWMPRannInterval; 2095 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2096 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2097 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2098 /* our RSSI threshold implementation is supported only for 2099 * devices that report signal in dBm. 2100 */ 2101 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2102 return -ENOTSUPP; 2103 conf->rssi_threshold = nconf->rssi_threshold; 2104 } 2105 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2106 conf->ht_opmode = nconf->ht_opmode; 2107 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2108 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2109 } 2110 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2111 conf->dot11MeshHWMPactivePathToRootTimeout = 2112 nconf->dot11MeshHWMPactivePathToRootTimeout; 2113 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2114 conf->dot11MeshHWMProotInterval = 2115 nconf->dot11MeshHWMProotInterval; 2116 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2117 conf->dot11MeshHWMPconfirmationInterval = 2118 nconf->dot11MeshHWMPconfirmationInterval; 2119 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2120 conf->power_mode = nconf->power_mode; 2121 ieee80211_mps_local_status_update(sdata); 2122 } 2123 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2124 conf->dot11MeshAwakeWindowDuration = 2125 nconf->dot11MeshAwakeWindowDuration; 2126 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2127 conf->plink_timeout = nconf->plink_timeout; 2128 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2129 conf->dot11MeshConnectedToMeshGate = 2130 nconf->dot11MeshConnectedToMeshGate; 2131 if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask)) 2132 conf->dot11MeshNolearn = nconf->dot11MeshNolearn; 2133 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask)) 2134 conf->dot11MeshConnectedToAuthServer = 2135 nconf->dot11MeshConnectedToAuthServer; 2136 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2137 return 0; 2138 } 2139 2140 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2141 const struct mesh_config *conf, 2142 const struct mesh_setup *setup) 2143 { 2144 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2145 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2146 int err; 2147 2148 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2149 err = copy_mesh_setup(ifmsh, setup); 2150 if (err) 2151 return err; 2152 2153 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2154 2155 /* can mesh use other SMPS modes? */ 2156 sdata->smps_mode = IEEE80211_SMPS_OFF; 2157 sdata->needed_rx_chains = sdata->local->rx_chains; 2158 2159 mutex_lock(&sdata->local->mtx); 2160 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2161 IEEE80211_CHANCTX_SHARED); 2162 mutex_unlock(&sdata->local->mtx); 2163 if (err) 2164 return err; 2165 2166 return ieee80211_start_mesh(sdata); 2167 } 2168 2169 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2170 { 2171 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2172 2173 ieee80211_stop_mesh(sdata); 2174 mutex_lock(&sdata->local->mtx); 2175 ieee80211_vif_release_channel(sdata); 2176 kfree(sdata->u.mesh.ie); 2177 mutex_unlock(&sdata->local->mtx); 2178 2179 return 0; 2180 } 2181 #endif 2182 2183 static int ieee80211_change_bss(struct wiphy *wiphy, 2184 struct net_device *dev, 2185 struct bss_parameters *params) 2186 { 2187 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2188 struct ieee80211_supported_band *sband; 2189 u32 changed = 0; 2190 2191 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2192 return -ENOENT; 2193 2194 sband = ieee80211_get_sband(sdata); 2195 if (!sband) 2196 return -EINVAL; 2197 2198 if (params->use_cts_prot >= 0) { 2199 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2200 changed |= BSS_CHANGED_ERP_CTS_PROT; 2201 } 2202 if (params->use_short_preamble >= 0) { 2203 sdata->vif.bss_conf.use_short_preamble = 2204 params->use_short_preamble; 2205 changed |= BSS_CHANGED_ERP_PREAMBLE; 2206 } 2207 2208 if (!sdata->vif.bss_conf.use_short_slot && 2209 (sband->band == NL80211_BAND_5GHZ || 2210 sband->band == NL80211_BAND_6GHZ)) { 2211 sdata->vif.bss_conf.use_short_slot = true; 2212 changed |= BSS_CHANGED_ERP_SLOT; 2213 } 2214 2215 if (params->use_short_slot_time >= 0) { 2216 sdata->vif.bss_conf.use_short_slot = 2217 params->use_short_slot_time; 2218 changed |= BSS_CHANGED_ERP_SLOT; 2219 } 2220 2221 if (params->basic_rates) { 2222 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2223 wiphy->bands[sband->band], 2224 params->basic_rates, 2225 params->basic_rates_len, 2226 &sdata->vif.bss_conf.basic_rates); 2227 changed |= BSS_CHANGED_BASIC_RATES; 2228 ieee80211_check_rate_mask(sdata); 2229 } 2230 2231 if (params->ap_isolate >= 0) { 2232 if (params->ap_isolate) 2233 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2234 else 2235 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2236 ieee80211_check_fast_rx_iface(sdata); 2237 } 2238 2239 if (params->ht_opmode >= 0) { 2240 sdata->vif.bss_conf.ht_operation_mode = 2241 (u16) params->ht_opmode; 2242 changed |= BSS_CHANGED_HT; 2243 } 2244 2245 if (params->p2p_ctwindow >= 0) { 2246 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2247 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2248 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2249 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2250 changed |= BSS_CHANGED_P2P_PS; 2251 } 2252 2253 if (params->p2p_opp_ps > 0) { 2254 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2255 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2256 changed |= BSS_CHANGED_P2P_PS; 2257 } else if (params->p2p_opp_ps == 0) { 2258 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2259 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2260 changed |= BSS_CHANGED_P2P_PS; 2261 } 2262 2263 ieee80211_bss_info_change_notify(sdata, changed); 2264 2265 return 0; 2266 } 2267 2268 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2269 struct net_device *dev, 2270 struct ieee80211_txq_params *params) 2271 { 2272 struct ieee80211_local *local = wiphy_priv(wiphy); 2273 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2274 struct ieee80211_tx_queue_params p; 2275 2276 if (!local->ops->conf_tx) 2277 return -EOPNOTSUPP; 2278 2279 if (local->hw.queues < IEEE80211_NUM_ACS) 2280 return -EOPNOTSUPP; 2281 2282 memset(&p, 0, sizeof(p)); 2283 p.aifs = params->aifs; 2284 p.cw_max = params->cwmax; 2285 p.cw_min = params->cwmin; 2286 p.txop = params->txop; 2287 2288 /* 2289 * Setting tx queue params disables u-apsd because it's only 2290 * called in master mode. 2291 */ 2292 p.uapsd = false; 2293 2294 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2295 2296 sdata->tx_conf[params->ac] = p; 2297 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2298 wiphy_debug(local->hw.wiphy, 2299 "failed to set TX queue parameters for AC %d\n", 2300 params->ac); 2301 return -EINVAL; 2302 } 2303 2304 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2305 2306 return 0; 2307 } 2308 2309 #ifdef CONFIG_PM 2310 static int ieee80211_suspend(struct wiphy *wiphy, 2311 struct cfg80211_wowlan *wowlan) 2312 { 2313 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2314 } 2315 2316 static int ieee80211_resume(struct wiphy *wiphy) 2317 { 2318 return __ieee80211_resume(wiphy_priv(wiphy)); 2319 } 2320 #else 2321 #define ieee80211_suspend NULL 2322 #define ieee80211_resume NULL 2323 #endif 2324 2325 static int ieee80211_scan(struct wiphy *wiphy, 2326 struct cfg80211_scan_request *req) 2327 { 2328 struct ieee80211_sub_if_data *sdata; 2329 2330 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2331 2332 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2333 case NL80211_IFTYPE_STATION: 2334 case NL80211_IFTYPE_ADHOC: 2335 case NL80211_IFTYPE_MESH_POINT: 2336 case NL80211_IFTYPE_P2P_CLIENT: 2337 case NL80211_IFTYPE_P2P_DEVICE: 2338 break; 2339 case NL80211_IFTYPE_P2P_GO: 2340 if (sdata->local->ops->hw_scan) 2341 break; 2342 /* 2343 * FIXME: implement NoA while scanning in software, 2344 * for now fall through to allow scanning only when 2345 * beaconing hasn't been configured yet 2346 */ 2347 fallthrough; 2348 case NL80211_IFTYPE_AP: 2349 /* 2350 * If the scan has been forced (and the driver supports 2351 * forcing), don't care about being beaconing already. 2352 * This will create problems to the attached stations (e.g. all 2353 * the frames sent while scanning on other channel will be 2354 * lost) 2355 */ 2356 if (sdata->u.ap.beacon && 2357 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2358 !(req->flags & NL80211_SCAN_FLAG_AP))) 2359 return -EOPNOTSUPP; 2360 break; 2361 case NL80211_IFTYPE_NAN: 2362 default: 2363 return -EOPNOTSUPP; 2364 } 2365 2366 return ieee80211_request_scan(sdata, req); 2367 } 2368 2369 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2370 { 2371 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2372 } 2373 2374 static int 2375 ieee80211_sched_scan_start(struct wiphy *wiphy, 2376 struct net_device *dev, 2377 struct cfg80211_sched_scan_request *req) 2378 { 2379 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2380 2381 if (!sdata->local->ops->sched_scan_start) 2382 return -EOPNOTSUPP; 2383 2384 return ieee80211_request_sched_scan_start(sdata, req); 2385 } 2386 2387 static int 2388 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2389 u64 reqid) 2390 { 2391 struct ieee80211_local *local = wiphy_priv(wiphy); 2392 2393 if (!local->ops->sched_scan_stop) 2394 return -EOPNOTSUPP; 2395 2396 return ieee80211_request_sched_scan_stop(local); 2397 } 2398 2399 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2400 struct cfg80211_auth_request *req) 2401 { 2402 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2403 } 2404 2405 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2406 struct cfg80211_assoc_request *req) 2407 { 2408 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2409 } 2410 2411 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2412 struct cfg80211_deauth_request *req) 2413 { 2414 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2415 } 2416 2417 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2418 struct cfg80211_disassoc_request *req) 2419 { 2420 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2421 } 2422 2423 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2424 struct cfg80211_ibss_params *params) 2425 { 2426 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2427 } 2428 2429 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2430 { 2431 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2432 } 2433 2434 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2435 struct ocb_setup *setup) 2436 { 2437 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2438 } 2439 2440 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2441 { 2442 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2443 } 2444 2445 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2446 int rate[NUM_NL80211_BANDS]) 2447 { 2448 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2449 2450 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2451 sizeof(int) * NUM_NL80211_BANDS); 2452 2453 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2454 2455 return 0; 2456 } 2457 2458 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2459 { 2460 struct ieee80211_local *local = wiphy_priv(wiphy); 2461 int err; 2462 2463 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2464 ieee80211_check_fast_xmit_all(local); 2465 2466 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2467 2468 if (err) { 2469 ieee80211_check_fast_xmit_all(local); 2470 return err; 2471 } 2472 } 2473 2474 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2475 (changed & WIPHY_PARAM_DYN_ACK)) { 2476 s16 coverage_class; 2477 2478 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2479 wiphy->coverage_class : -1; 2480 err = drv_set_coverage_class(local, coverage_class); 2481 2482 if (err) 2483 return err; 2484 } 2485 2486 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2487 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2488 2489 if (err) 2490 return err; 2491 } 2492 2493 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2494 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2495 return -EINVAL; 2496 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2497 } 2498 if (changed & WIPHY_PARAM_RETRY_LONG) { 2499 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2500 return -EINVAL; 2501 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2502 } 2503 if (changed & 2504 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2505 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2506 2507 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2508 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2509 WIPHY_PARAM_TXQ_QUANTUM)) 2510 ieee80211_txq_set_params(local); 2511 2512 return 0; 2513 } 2514 2515 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2516 struct wireless_dev *wdev, 2517 enum nl80211_tx_power_setting type, int mbm) 2518 { 2519 struct ieee80211_local *local = wiphy_priv(wiphy); 2520 struct ieee80211_sub_if_data *sdata; 2521 enum nl80211_tx_power_setting txp_type = type; 2522 bool update_txp_type = false; 2523 bool has_monitor = false; 2524 2525 if (wdev) { 2526 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2527 2528 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2529 sdata = rtnl_dereference(local->monitor_sdata); 2530 if (!sdata) 2531 return -EOPNOTSUPP; 2532 } 2533 2534 switch (type) { 2535 case NL80211_TX_POWER_AUTOMATIC: 2536 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2537 txp_type = NL80211_TX_POWER_LIMITED; 2538 break; 2539 case NL80211_TX_POWER_LIMITED: 2540 case NL80211_TX_POWER_FIXED: 2541 if (mbm < 0 || (mbm % 100)) 2542 return -EOPNOTSUPP; 2543 sdata->user_power_level = MBM_TO_DBM(mbm); 2544 break; 2545 } 2546 2547 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2548 update_txp_type = true; 2549 sdata->vif.bss_conf.txpower_type = txp_type; 2550 } 2551 2552 ieee80211_recalc_txpower(sdata, update_txp_type); 2553 2554 return 0; 2555 } 2556 2557 switch (type) { 2558 case NL80211_TX_POWER_AUTOMATIC: 2559 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2560 txp_type = NL80211_TX_POWER_LIMITED; 2561 break; 2562 case NL80211_TX_POWER_LIMITED: 2563 case NL80211_TX_POWER_FIXED: 2564 if (mbm < 0 || (mbm % 100)) 2565 return -EOPNOTSUPP; 2566 local->user_power_level = MBM_TO_DBM(mbm); 2567 break; 2568 } 2569 2570 mutex_lock(&local->iflist_mtx); 2571 list_for_each_entry(sdata, &local->interfaces, list) { 2572 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2573 has_monitor = true; 2574 continue; 2575 } 2576 sdata->user_power_level = local->user_power_level; 2577 if (txp_type != sdata->vif.bss_conf.txpower_type) 2578 update_txp_type = true; 2579 sdata->vif.bss_conf.txpower_type = txp_type; 2580 } 2581 list_for_each_entry(sdata, &local->interfaces, list) { 2582 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2583 continue; 2584 ieee80211_recalc_txpower(sdata, update_txp_type); 2585 } 2586 mutex_unlock(&local->iflist_mtx); 2587 2588 if (has_monitor) { 2589 sdata = rtnl_dereference(local->monitor_sdata); 2590 if (sdata) { 2591 sdata->user_power_level = local->user_power_level; 2592 if (txp_type != sdata->vif.bss_conf.txpower_type) 2593 update_txp_type = true; 2594 sdata->vif.bss_conf.txpower_type = txp_type; 2595 2596 ieee80211_recalc_txpower(sdata, update_txp_type); 2597 } 2598 } 2599 2600 return 0; 2601 } 2602 2603 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2604 struct wireless_dev *wdev, 2605 int *dbm) 2606 { 2607 struct ieee80211_local *local = wiphy_priv(wiphy); 2608 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2609 2610 if (local->ops->get_txpower) 2611 return drv_get_txpower(local, sdata, dbm); 2612 2613 if (!local->use_chanctx) 2614 *dbm = local->hw.conf.power_level; 2615 else 2616 *dbm = sdata->vif.bss_conf.txpower; 2617 2618 return 0; 2619 } 2620 2621 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2622 const u8 *addr) 2623 { 2624 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2625 2626 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2627 2628 return 0; 2629 } 2630 2631 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2632 { 2633 struct ieee80211_local *local = wiphy_priv(wiphy); 2634 2635 drv_rfkill_poll(local); 2636 } 2637 2638 #ifdef CONFIG_NL80211_TESTMODE 2639 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2640 struct wireless_dev *wdev, 2641 void *data, int len) 2642 { 2643 struct ieee80211_local *local = wiphy_priv(wiphy); 2644 struct ieee80211_vif *vif = NULL; 2645 2646 if (!local->ops->testmode_cmd) 2647 return -EOPNOTSUPP; 2648 2649 if (wdev) { 2650 struct ieee80211_sub_if_data *sdata; 2651 2652 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2653 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2654 vif = &sdata->vif; 2655 } 2656 2657 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2658 } 2659 2660 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2661 struct sk_buff *skb, 2662 struct netlink_callback *cb, 2663 void *data, int len) 2664 { 2665 struct ieee80211_local *local = wiphy_priv(wiphy); 2666 2667 if (!local->ops->testmode_dump) 2668 return -EOPNOTSUPP; 2669 2670 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2671 } 2672 #endif 2673 2674 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2675 enum ieee80211_smps_mode smps_mode) 2676 { 2677 const u8 *ap; 2678 enum ieee80211_smps_mode old_req; 2679 int err; 2680 struct sta_info *sta; 2681 bool tdls_peer_found = false; 2682 2683 lockdep_assert_held(&sdata->wdev.mtx); 2684 2685 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2686 return -EINVAL; 2687 2688 old_req = sdata->u.mgd.req_smps; 2689 sdata->u.mgd.req_smps = smps_mode; 2690 2691 if (old_req == smps_mode && 2692 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2693 return 0; 2694 2695 /* 2696 * If not associated, or current association is not an HT 2697 * association, there's no need to do anything, just store 2698 * the new value until we associate. 2699 */ 2700 if (!sdata->u.mgd.associated || 2701 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2702 return 0; 2703 2704 ap = sdata->u.mgd.associated->bssid; 2705 2706 rcu_read_lock(); 2707 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2708 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2709 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2710 continue; 2711 2712 tdls_peer_found = true; 2713 break; 2714 } 2715 rcu_read_unlock(); 2716 2717 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2718 if (tdls_peer_found || !sdata->u.mgd.powersave) 2719 smps_mode = IEEE80211_SMPS_OFF; 2720 else 2721 smps_mode = IEEE80211_SMPS_DYNAMIC; 2722 } 2723 2724 /* send SM PS frame to AP */ 2725 err = ieee80211_send_smps_action(sdata, smps_mode, 2726 ap, ap); 2727 if (err) 2728 sdata->u.mgd.req_smps = old_req; 2729 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2730 ieee80211_teardown_tdls_peers(sdata); 2731 2732 return err; 2733 } 2734 2735 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2736 bool enabled, int timeout) 2737 { 2738 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2739 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2740 2741 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2742 return -EOPNOTSUPP; 2743 2744 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2745 return -EOPNOTSUPP; 2746 2747 if (enabled == sdata->u.mgd.powersave && 2748 timeout == local->dynamic_ps_forced_timeout) 2749 return 0; 2750 2751 sdata->u.mgd.powersave = enabled; 2752 local->dynamic_ps_forced_timeout = timeout; 2753 2754 /* no change, but if automatic follow powersave */ 2755 sdata_lock(sdata); 2756 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2757 sdata_unlock(sdata); 2758 2759 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2760 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2761 2762 ieee80211_recalc_ps(local); 2763 ieee80211_recalc_ps_vif(sdata); 2764 ieee80211_check_fast_rx_iface(sdata); 2765 2766 return 0; 2767 } 2768 2769 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2770 struct net_device *dev, 2771 s32 rssi_thold, u32 rssi_hyst) 2772 { 2773 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2774 struct ieee80211_vif *vif = &sdata->vif; 2775 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2776 2777 if (rssi_thold == bss_conf->cqm_rssi_thold && 2778 rssi_hyst == bss_conf->cqm_rssi_hyst) 2779 return 0; 2780 2781 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2782 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2783 return -EOPNOTSUPP; 2784 2785 bss_conf->cqm_rssi_thold = rssi_thold; 2786 bss_conf->cqm_rssi_hyst = rssi_hyst; 2787 bss_conf->cqm_rssi_low = 0; 2788 bss_conf->cqm_rssi_high = 0; 2789 sdata->u.mgd.last_cqm_event_signal = 0; 2790 2791 /* tell the driver upon association, unless already associated */ 2792 if (sdata->u.mgd.associated && 2793 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2794 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2795 2796 return 0; 2797 } 2798 2799 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2800 struct net_device *dev, 2801 s32 rssi_low, s32 rssi_high) 2802 { 2803 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2804 struct ieee80211_vif *vif = &sdata->vif; 2805 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2806 2807 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2808 return -EOPNOTSUPP; 2809 2810 bss_conf->cqm_rssi_low = rssi_low; 2811 bss_conf->cqm_rssi_high = rssi_high; 2812 bss_conf->cqm_rssi_thold = 0; 2813 bss_conf->cqm_rssi_hyst = 0; 2814 sdata->u.mgd.last_cqm_event_signal = 0; 2815 2816 /* tell the driver upon association, unless already associated */ 2817 if (sdata->u.mgd.associated && 2818 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2819 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2820 2821 return 0; 2822 } 2823 2824 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2825 struct net_device *dev, 2826 const u8 *addr, 2827 const struct cfg80211_bitrate_mask *mask) 2828 { 2829 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2830 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2831 int i, ret; 2832 2833 if (!ieee80211_sdata_running(sdata)) 2834 return -ENETDOWN; 2835 2836 /* 2837 * If active validate the setting and reject it if it doesn't leave 2838 * at least one basic rate usable, since we really have to be able 2839 * to send something, and if we're an AP we have to be able to do 2840 * so at a basic rate so that all clients can receive it. 2841 */ 2842 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2843 sdata->vif.bss_conf.chandef.chan) { 2844 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2845 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2846 2847 if (!(mask->control[band].legacy & basic_rates)) 2848 return -EINVAL; 2849 } 2850 2851 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2852 ret = drv_set_bitrate_mask(local, sdata, mask); 2853 if (ret) 2854 return ret; 2855 } 2856 2857 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2858 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2859 int j; 2860 2861 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2862 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2863 sizeof(mask->control[i].ht_mcs)); 2864 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2865 mask->control[i].vht_mcs, 2866 sizeof(mask->control[i].vht_mcs)); 2867 2868 sdata->rc_has_mcs_mask[i] = false; 2869 sdata->rc_has_vht_mcs_mask[i] = false; 2870 if (!sband) 2871 continue; 2872 2873 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2874 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2875 sdata->rc_has_mcs_mask[i] = true; 2876 break; 2877 } 2878 } 2879 2880 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2881 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2882 sdata->rc_has_vht_mcs_mask[i] = true; 2883 break; 2884 } 2885 } 2886 } 2887 2888 return 0; 2889 } 2890 2891 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2892 struct net_device *dev, 2893 struct cfg80211_chan_def *chandef, 2894 u32 cac_time_ms) 2895 { 2896 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2897 struct ieee80211_local *local = sdata->local; 2898 int err; 2899 2900 mutex_lock(&local->mtx); 2901 if (!list_empty(&local->roc_list) || local->scanning) { 2902 err = -EBUSY; 2903 goto out_unlock; 2904 } 2905 2906 /* whatever, but channel contexts should not complain about that one */ 2907 sdata->smps_mode = IEEE80211_SMPS_OFF; 2908 sdata->needed_rx_chains = local->rx_chains; 2909 2910 err = ieee80211_vif_use_channel(sdata, chandef, 2911 IEEE80211_CHANCTX_SHARED); 2912 if (err) 2913 goto out_unlock; 2914 2915 ieee80211_queue_delayed_work(&sdata->local->hw, 2916 &sdata->dfs_cac_timer_work, 2917 msecs_to_jiffies(cac_time_ms)); 2918 2919 out_unlock: 2920 mutex_unlock(&local->mtx); 2921 return err; 2922 } 2923 2924 static void ieee80211_end_cac(struct wiphy *wiphy, 2925 struct net_device *dev) 2926 { 2927 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2928 struct ieee80211_local *local = sdata->local; 2929 2930 mutex_lock(&local->mtx); 2931 list_for_each_entry(sdata, &local->interfaces, list) { 2932 /* it might be waiting for the local->mtx, but then 2933 * by the time it gets it, sdata->wdev.cac_started 2934 * will no longer be true 2935 */ 2936 cancel_delayed_work(&sdata->dfs_cac_timer_work); 2937 2938 if (sdata->wdev.cac_started) { 2939 ieee80211_vif_release_channel(sdata); 2940 sdata->wdev.cac_started = false; 2941 } 2942 } 2943 mutex_unlock(&local->mtx); 2944 } 2945 2946 static struct cfg80211_beacon_data * 2947 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2948 { 2949 struct cfg80211_beacon_data *new_beacon; 2950 u8 *pos; 2951 int len; 2952 2953 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2954 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2955 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 2956 2957 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2958 if (!new_beacon) 2959 return NULL; 2960 2961 pos = (u8 *)(new_beacon + 1); 2962 if (beacon->head_len) { 2963 new_beacon->head_len = beacon->head_len; 2964 new_beacon->head = pos; 2965 memcpy(pos, beacon->head, beacon->head_len); 2966 pos += beacon->head_len; 2967 } 2968 if (beacon->tail_len) { 2969 new_beacon->tail_len = beacon->tail_len; 2970 new_beacon->tail = pos; 2971 memcpy(pos, beacon->tail, beacon->tail_len); 2972 pos += beacon->tail_len; 2973 } 2974 if (beacon->beacon_ies_len) { 2975 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2976 new_beacon->beacon_ies = pos; 2977 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2978 pos += beacon->beacon_ies_len; 2979 } 2980 if (beacon->proberesp_ies_len) { 2981 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2982 new_beacon->proberesp_ies = pos; 2983 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2984 pos += beacon->proberesp_ies_len; 2985 } 2986 if (beacon->assocresp_ies_len) { 2987 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2988 new_beacon->assocresp_ies = pos; 2989 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2990 pos += beacon->assocresp_ies_len; 2991 } 2992 if (beacon->probe_resp_len) { 2993 new_beacon->probe_resp_len = beacon->probe_resp_len; 2994 new_beacon->probe_resp = pos; 2995 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 2996 pos += beacon->probe_resp_len; 2997 } 2998 2999 /* might copy -1, meaning no changes requested */ 3000 new_beacon->ftm_responder = beacon->ftm_responder; 3001 if (beacon->lci) { 3002 new_beacon->lci_len = beacon->lci_len; 3003 new_beacon->lci = pos; 3004 memcpy(pos, beacon->lci, beacon->lci_len); 3005 pos += beacon->lci_len; 3006 } 3007 if (beacon->civicloc) { 3008 new_beacon->civicloc_len = beacon->civicloc_len; 3009 new_beacon->civicloc = pos; 3010 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3011 pos += beacon->civicloc_len; 3012 } 3013 3014 return new_beacon; 3015 } 3016 3017 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3018 { 3019 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3020 3021 ieee80211_queue_work(&sdata->local->hw, 3022 &sdata->csa_finalize_work); 3023 } 3024 EXPORT_SYMBOL(ieee80211_csa_finish); 3025 3026 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3027 u32 *changed) 3028 { 3029 int err; 3030 3031 switch (sdata->vif.type) { 3032 case NL80211_IFTYPE_AP: 3033 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 3034 NULL); 3035 kfree(sdata->u.ap.next_beacon); 3036 sdata->u.ap.next_beacon = NULL; 3037 3038 if (err < 0) 3039 return err; 3040 *changed |= err; 3041 break; 3042 case NL80211_IFTYPE_ADHOC: 3043 err = ieee80211_ibss_finish_csa(sdata); 3044 if (err < 0) 3045 return err; 3046 *changed |= err; 3047 break; 3048 #ifdef CONFIG_MAC80211_MESH 3049 case NL80211_IFTYPE_MESH_POINT: 3050 err = ieee80211_mesh_finish_csa(sdata); 3051 if (err < 0) 3052 return err; 3053 *changed |= err; 3054 break; 3055 #endif 3056 default: 3057 WARN_ON(1); 3058 return -EINVAL; 3059 } 3060 3061 return 0; 3062 } 3063 3064 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3065 { 3066 struct ieee80211_local *local = sdata->local; 3067 u32 changed = 0; 3068 int err; 3069 3070 sdata_assert_lock(sdata); 3071 lockdep_assert_held(&local->mtx); 3072 lockdep_assert_held(&local->chanctx_mtx); 3073 3074 /* 3075 * using reservation isn't immediate as it may be deferred until later 3076 * with multi-vif. once reservation is complete it will re-schedule the 3077 * work with no reserved_chanctx so verify chandef to check if it 3078 * completed successfully 3079 */ 3080 3081 if (sdata->reserved_chanctx) { 3082 /* 3083 * with multi-vif csa driver may call ieee80211_csa_finish() 3084 * many times while waiting for other interfaces to use their 3085 * reservations 3086 */ 3087 if (sdata->reserved_ready) 3088 return 0; 3089 3090 return ieee80211_vif_use_reserved_context(sdata); 3091 } 3092 3093 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3094 &sdata->csa_chandef)) 3095 return -EINVAL; 3096 3097 sdata->vif.csa_active = false; 3098 3099 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3100 if (err) 3101 return err; 3102 3103 ieee80211_bss_info_change_notify(sdata, changed); 3104 3105 if (sdata->csa_block_tx) { 3106 ieee80211_wake_vif_queues(local, sdata, 3107 IEEE80211_QUEUE_STOP_REASON_CSA); 3108 sdata->csa_block_tx = false; 3109 } 3110 3111 err = drv_post_channel_switch(sdata); 3112 if (err) 3113 return err; 3114 3115 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3116 3117 return 0; 3118 } 3119 3120 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3121 { 3122 if (__ieee80211_csa_finalize(sdata)) { 3123 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3124 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3125 GFP_KERNEL); 3126 } 3127 } 3128 3129 void ieee80211_csa_finalize_work(struct work_struct *work) 3130 { 3131 struct ieee80211_sub_if_data *sdata = 3132 container_of(work, struct ieee80211_sub_if_data, 3133 csa_finalize_work); 3134 struct ieee80211_local *local = sdata->local; 3135 3136 sdata_lock(sdata); 3137 mutex_lock(&local->mtx); 3138 mutex_lock(&local->chanctx_mtx); 3139 3140 /* AP might have been stopped while waiting for the lock. */ 3141 if (!sdata->vif.csa_active) 3142 goto unlock; 3143 3144 if (!ieee80211_sdata_running(sdata)) 3145 goto unlock; 3146 3147 ieee80211_csa_finalize(sdata); 3148 3149 unlock: 3150 mutex_unlock(&local->chanctx_mtx); 3151 mutex_unlock(&local->mtx); 3152 sdata_unlock(sdata); 3153 } 3154 3155 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3156 struct cfg80211_csa_settings *params, 3157 u32 *changed) 3158 { 3159 struct ieee80211_csa_settings csa = {}; 3160 int err; 3161 3162 switch (sdata->vif.type) { 3163 case NL80211_IFTYPE_AP: 3164 sdata->u.ap.next_beacon = 3165 cfg80211_beacon_dup(¶ms->beacon_after); 3166 if (!sdata->u.ap.next_beacon) 3167 return -ENOMEM; 3168 3169 /* 3170 * With a count of 0, we don't have to wait for any 3171 * TBTT before switching, so complete the CSA 3172 * immediately. In theory, with a count == 1 we 3173 * should delay the switch until just before the next 3174 * TBTT, but that would complicate things so we switch 3175 * immediately too. If we would delay the switch 3176 * until the next TBTT, we would have to set the probe 3177 * response here. 3178 * 3179 * TODO: A channel switch with count <= 1 without 3180 * sending a CSA action frame is kind of useless, 3181 * because the clients won't know we're changing 3182 * channels. The action frame must be implemented 3183 * either here or in the userspace. 3184 */ 3185 if (params->count <= 1) 3186 break; 3187 3188 if ((params->n_counter_offsets_beacon > 3189 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3190 (params->n_counter_offsets_presp > 3191 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3192 return -EINVAL; 3193 3194 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3195 csa.counter_offsets_presp = params->counter_offsets_presp; 3196 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3197 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3198 csa.count = params->count; 3199 3200 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3201 if (err < 0) { 3202 kfree(sdata->u.ap.next_beacon); 3203 return err; 3204 } 3205 *changed |= err; 3206 3207 break; 3208 case NL80211_IFTYPE_ADHOC: 3209 if (!sdata->vif.bss_conf.ibss_joined) 3210 return -EINVAL; 3211 3212 if (params->chandef.width != sdata->u.ibss.chandef.width) 3213 return -EINVAL; 3214 3215 switch (params->chandef.width) { 3216 case NL80211_CHAN_WIDTH_40: 3217 if (cfg80211_get_chandef_type(¶ms->chandef) != 3218 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3219 return -EINVAL; 3220 case NL80211_CHAN_WIDTH_5: 3221 case NL80211_CHAN_WIDTH_10: 3222 case NL80211_CHAN_WIDTH_20_NOHT: 3223 case NL80211_CHAN_WIDTH_20: 3224 break; 3225 default: 3226 return -EINVAL; 3227 } 3228 3229 /* changes into another band are not supported */ 3230 if (sdata->u.ibss.chandef.chan->band != 3231 params->chandef.chan->band) 3232 return -EINVAL; 3233 3234 /* see comments in the NL80211_IFTYPE_AP block */ 3235 if (params->count > 1) { 3236 err = ieee80211_ibss_csa_beacon(sdata, params); 3237 if (err < 0) 3238 return err; 3239 *changed |= err; 3240 } 3241 3242 ieee80211_send_action_csa(sdata, params); 3243 3244 break; 3245 #ifdef CONFIG_MAC80211_MESH 3246 case NL80211_IFTYPE_MESH_POINT: { 3247 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3248 3249 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3250 return -EINVAL; 3251 3252 /* changes into another band are not supported */ 3253 if (sdata->vif.bss_conf.chandef.chan->band != 3254 params->chandef.chan->band) 3255 return -EINVAL; 3256 3257 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3258 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3259 if (!ifmsh->pre_value) 3260 ifmsh->pre_value = 1; 3261 else 3262 ifmsh->pre_value++; 3263 } 3264 3265 /* see comments in the NL80211_IFTYPE_AP block */ 3266 if (params->count > 1) { 3267 err = ieee80211_mesh_csa_beacon(sdata, params); 3268 if (err < 0) { 3269 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3270 return err; 3271 } 3272 *changed |= err; 3273 } 3274 3275 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3276 ieee80211_send_action_csa(sdata, params); 3277 3278 break; 3279 } 3280 #endif 3281 default: 3282 return -EOPNOTSUPP; 3283 } 3284 3285 return 0; 3286 } 3287 3288 static int 3289 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3290 struct cfg80211_csa_settings *params) 3291 { 3292 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3293 struct ieee80211_local *local = sdata->local; 3294 struct ieee80211_channel_switch ch_switch; 3295 struct ieee80211_chanctx_conf *conf; 3296 struct ieee80211_chanctx *chanctx; 3297 u32 changed = 0; 3298 int err; 3299 3300 sdata_assert_lock(sdata); 3301 lockdep_assert_held(&local->mtx); 3302 3303 if (!list_empty(&local->roc_list) || local->scanning) 3304 return -EBUSY; 3305 3306 if (sdata->wdev.cac_started) 3307 return -EBUSY; 3308 3309 if (cfg80211_chandef_identical(¶ms->chandef, 3310 &sdata->vif.bss_conf.chandef)) 3311 return -EINVAL; 3312 3313 /* don't allow another channel switch if one is already active. */ 3314 if (sdata->vif.csa_active) 3315 return -EBUSY; 3316 3317 mutex_lock(&local->chanctx_mtx); 3318 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3319 lockdep_is_held(&local->chanctx_mtx)); 3320 if (!conf) { 3321 err = -EBUSY; 3322 goto out; 3323 } 3324 3325 if (params->chandef.chan->freq_offset) { 3326 /* this may work, but is untested */ 3327 err = -EOPNOTSUPP; 3328 goto out; 3329 } 3330 3331 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3332 3333 ch_switch.timestamp = 0; 3334 ch_switch.device_timestamp = 0; 3335 ch_switch.block_tx = params->block_tx; 3336 ch_switch.chandef = params->chandef; 3337 ch_switch.count = params->count; 3338 3339 err = drv_pre_channel_switch(sdata, &ch_switch); 3340 if (err) 3341 goto out; 3342 3343 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3344 chanctx->mode, 3345 params->radar_required); 3346 if (err) 3347 goto out; 3348 3349 /* if reservation is invalid then this will fail */ 3350 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3351 if (err) { 3352 ieee80211_vif_unreserve_chanctx(sdata); 3353 goto out; 3354 } 3355 3356 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3357 if (err) { 3358 ieee80211_vif_unreserve_chanctx(sdata); 3359 goto out; 3360 } 3361 3362 sdata->csa_chandef = params->chandef; 3363 sdata->csa_block_tx = params->block_tx; 3364 sdata->vif.csa_active = true; 3365 3366 if (sdata->csa_block_tx) 3367 ieee80211_stop_vif_queues(local, sdata, 3368 IEEE80211_QUEUE_STOP_REASON_CSA); 3369 3370 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3371 params->count); 3372 3373 if (changed) { 3374 ieee80211_bss_info_change_notify(sdata, changed); 3375 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3376 } else { 3377 /* if the beacon didn't change, we can finalize immediately */ 3378 ieee80211_csa_finalize(sdata); 3379 } 3380 3381 out: 3382 mutex_unlock(&local->chanctx_mtx); 3383 return err; 3384 } 3385 3386 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3387 struct cfg80211_csa_settings *params) 3388 { 3389 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3390 struct ieee80211_local *local = sdata->local; 3391 int err; 3392 3393 mutex_lock(&local->mtx); 3394 err = __ieee80211_channel_switch(wiphy, dev, params); 3395 mutex_unlock(&local->mtx); 3396 3397 return err; 3398 } 3399 3400 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3401 { 3402 lockdep_assert_held(&local->mtx); 3403 3404 local->roc_cookie_counter++; 3405 3406 /* wow, you wrapped 64 bits ... more likely a bug */ 3407 if (WARN_ON(local->roc_cookie_counter == 0)) 3408 local->roc_cookie_counter++; 3409 3410 return local->roc_cookie_counter; 3411 } 3412 3413 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3414 u64 *cookie, gfp_t gfp) 3415 { 3416 unsigned long spin_flags; 3417 struct sk_buff *ack_skb; 3418 int id; 3419 3420 ack_skb = skb_copy(skb, gfp); 3421 if (!ack_skb) 3422 return -ENOMEM; 3423 3424 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3425 id = idr_alloc(&local->ack_status_frames, ack_skb, 3426 1, 0x2000, GFP_ATOMIC); 3427 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3428 3429 if (id < 0) { 3430 kfree_skb(ack_skb); 3431 return -ENOMEM; 3432 } 3433 3434 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3435 3436 *cookie = ieee80211_mgmt_tx_cookie(local); 3437 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3438 3439 return 0; 3440 } 3441 3442 static void 3443 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 3444 struct wireless_dev *wdev, 3445 struct mgmt_frame_regs *upd) 3446 { 3447 struct ieee80211_local *local = wiphy_priv(wiphy); 3448 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3449 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 3450 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 3451 bool global_change, intf_change; 3452 3453 global_change = 3454 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 3455 (local->rx_mcast_action_reg != 3456 !!(upd->global_mcast_stypes & action_mask)); 3457 local->probe_req_reg = upd->global_stypes & preq_mask; 3458 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 3459 3460 intf_change = (sdata->vif.probe_req_reg != 3461 !!(upd->interface_stypes & preq_mask)) || 3462 (sdata->vif.rx_mcast_action_reg != 3463 !!(upd->interface_mcast_stypes & action_mask)); 3464 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 3465 sdata->vif.rx_mcast_action_reg = 3466 upd->interface_mcast_stypes & action_mask; 3467 3468 if (!local->open_count) 3469 return; 3470 3471 if (intf_change && ieee80211_sdata_running(sdata)) 3472 drv_config_iface_filter(local, sdata, 3473 sdata->vif.probe_req_reg ? 3474 FIF_PROBE_REQ : 0, 3475 FIF_PROBE_REQ); 3476 3477 if (global_change) 3478 ieee80211_configure_filter(local); 3479 } 3480 3481 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3482 { 3483 struct ieee80211_local *local = wiphy_priv(wiphy); 3484 3485 if (local->started) 3486 return -EOPNOTSUPP; 3487 3488 return drv_set_antenna(local, tx_ant, rx_ant); 3489 } 3490 3491 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3492 { 3493 struct ieee80211_local *local = wiphy_priv(wiphy); 3494 3495 return drv_get_antenna(local, tx_ant, rx_ant); 3496 } 3497 3498 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3499 struct net_device *dev, 3500 struct cfg80211_gtk_rekey_data *data) 3501 { 3502 struct ieee80211_local *local = wiphy_priv(wiphy); 3503 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3504 3505 if (!local->ops->set_rekey_data) 3506 return -EOPNOTSUPP; 3507 3508 drv_set_rekey_data(local, sdata, data); 3509 3510 return 0; 3511 } 3512 3513 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3514 const u8 *peer, u64 *cookie) 3515 { 3516 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3517 struct ieee80211_local *local = sdata->local; 3518 struct ieee80211_qos_hdr *nullfunc; 3519 struct sk_buff *skb; 3520 int size = sizeof(*nullfunc); 3521 __le16 fc; 3522 bool qos; 3523 struct ieee80211_tx_info *info; 3524 struct sta_info *sta; 3525 struct ieee80211_chanctx_conf *chanctx_conf; 3526 enum nl80211_band band; 3527 int ret; 3528 3529 /* the lock is needed to assign the cookie later */ 3530 mutex_lock(&local->mtx); 3531 3532 rcu_read_lock(); 3533 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3534 if (WARN_ON(!chanctx_conf)) { 3535 ret = -EINVAL; 3536 goto unlock; 3537 } 3538 band = chanctx_conf->def.chan->band; 3539 sta = sta_info_get_bss(sdata, peer); 3540 if (sta) { 3541 qos = sta->sta.wme; 3542 } else { 3543 ret = -ENOLINK; 3544 goto unlock; 3545 } 3546 3547 if (qos) { 3548 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3549 IEEE80211_STYPE_QOS_NULLFUNC | 3550 IEEE80211_FCTL_FROMDS); 3551 } else { 3552 size -= 2; 3553 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3554 IEEE80211_STYPE_NULLFUNC | 3555 IEEE80211_FCTL_FROMDS); 3556 } 3557 3558 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3559 if (!skb) { 3560 ret = -ENOMEM; 3561 goto unlock; 3562 } 3563 3564 skb->dev = dev; 3565 3566 skb_reserve(skb, local->hw.extra_tx_headroom); 3567 3568 nullfunc = skb_put(skb, size); 3569 nullfunc->frame_control = fc; 3570 nullfunc->duration_id = 0; 3571 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3572 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3573 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3574 nullfunc->seq_ctrl = 0; 3575 3576 info = IEEE80211_SKB_CB(skb); 3577 3578 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3579 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3580 info->band = band; 3581 3582 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3583 skb->priority = 7; 3584 if (qos) 3585 nullfunc->qos_ctrl = cpu_to_le16(7); 3586 3587 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3588 if (ret) { 3589 kfree_skb(skb); 3590 goto unlock; 3591 } 3592 3593 local_bh_disable(); 3594 ieee80211_xmit(sdata, sta, skb); 3595 local_bh_enable(); 3596 3597 ret = 0; 3598 unlock: 3599 rcu_read_unlock(); 3600 mutex_unlock(&local->mtx); 3601 3602 return ret; 3603 } 3604 3605 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3606 struct wireless_dev *wdev, 3607 struct cfg80211_chan_def *chandef) 3608 { 3609 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3610 struct ieee80211_local *local = wiphy_priv(wiphy); 3611 struct ieee80211_chanctx_conf *chanctx_conf; 3612 int ret = -ENODATA; 3613 3614 rcu_read_lock(); 3615 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3616 if (chanctx_conf) { 3617 *chandef = sdata->vif.bss_conf.chandef; 3618 ret = 0; 3619 } else if (local->open_count > 0 && 3620 local->open_count == local->monitors && 3621 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3622 if (local->use_chanctx) 3623 *chandef = local->monitor_chandef; 3624 else 3625 *chandef = local->_oper_chandef; 3626 ret = 0; 3627 } 3628 rcu_read_unlock(); 3629 3630 return ret; 3631 } 3632 3633 #ifdef CONFIG_PM 3634 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3635 { 3636 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3637 } 3638 #endif 3639 3640 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3641 struct net_device *dev, 3642 struct cfg80211_qos_map *qos_map) 3643 { 3644 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3645 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3646 3647 if (qos_map) { 3648 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3649 if (!new_qos_map) 3650 return -ENOMEM; 3651 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3652 } else { 3653 /* A NULL qos_map was passed to disable QoS mapping */ 3654 new_qos_map = NULL; 3655 } 3656 3657 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3658 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3659 if (old_qos_map) 3660 kfree_rcu(old_qos_map, rcu_head); 3661 3662 return 0; 3663 } 3664 3665 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3666 struct net_device *dev, 3667 struct cfg80211_chan_def *chandef) 3668 { 3669 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3670 int ret; 3671 u32 changed = 0; 3672 3673 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3674 if (ret == 0) 3675 ieee80211_bss_info_change_notify(sdata, changed); 3676 3677 return ret; 3678 } 3679 3680 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3681 u8 tsid, const u8 *peer, u8 up, 3682 u16 admitted_time) 3683 { 3684 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3685 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3686 int ac = ieee802_1d_to_ac[up]; 3687 3688 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3689 return -EOPNOTSUPP; 3690 3691 if (!(sdata->wmm_acm & BIT(up))) 3692 return -EINVAL; 3693 3694 if (ifmgd->tx_tspec[ac].admitted_time) 3695 return -EBUSY; 3696 3697 if (admitted_time) { 3698 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3699 ifmgd->tx_tspec[ac].tsid = tsid; 3700 ifmgd->tx_tspec[ac].up = up; 3701 } 3702 3703 return 0; 3704 } 3705 3706 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3707 u8 tsid, const u8 *peer) 3708 { 3709 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3710 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3711 struct ieee80211_local *local = wiphy_priv(wiphy); 3712 int ac; 3713 3714 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3715 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3716 3717 /* skip unused entries */ 3718 if (!tx_tspec->admitted_time) 3719 continue; 3720 3721 if (tx_tspec->tsid != tsid) 3722 continue; 3723 3724 /* due to this new packets will be reassigned to non-ACM ACs */ 3725 tx_tspec->up = -1; 3726 3727 /* Make sure that all packets have been sent to avoid to 3728 * restore the QoS params on packets that are still on the 3729 * queues. 3730 */ 3731 synchronize_net(); 3732 ieee80211_flush_queues(local, sdata, false); 3733 3734 /* restore the normal QoS parameters 3735 * (unconditionally to avoid races) 3736 */ 3737 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3738 tx_tspec->downgraded = false; 3739 ieee80211_sta_handle_tspec_ac_params(sdata); 3740 3741 /* finally clear all the data */ 3742 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3743 3744 return 0; 3745 } 3746 3747 return -ENOENT; 3748 } 3749 3750 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3751 u8 inst_id, 3752 enum nl80211_nan_func_term_reason reason, 3753 gfp_t gfp) 3754 { 3755 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3756 struct cfg80211_nan_func *func; 3757 u64 cookie; 3758 3759 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3760 return; 3761 3762 spin_lock_bh(&sdata->u.nan.func_lock); 3763 3764 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3765 if (WARN_ON(!func)) { 3766 spin_unlock_bh(&sdata->u.nan.func_lock); 3767 return; 3768 } 3769 3770 cookie = func->cookie; 3771 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3772 3773 spin_unlock_bh(&sdata->u.nan.func_lock); 3774 3775 cfg80211_free_nan_func(func); 3776 3777 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3778 reason, cookie, gfp); 3779 } 3780 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3781 3782 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3783 struct cfg80211_nan_match_params *match, 3784 gfp_t gfp) 3785 { 3786 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3787 struct cfg80211_nan_func *func; 3788 3789 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3790 return; 3791 3792 spin_lock_bh(&sdata->u.nan.func_lock); 3793 3794 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3795 if (WARN_ON(!func)) { 3796 spin_unlock_bh(&sdata->u.nan.func_lock); 3797 return; 3798 } 3799 match->cookie = func->cookie; 3800 3801 spin_unlock_bh(&sdata->u.nan.func_lock); 3802 3803 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3804 } 3805 EXPORT_SYMBOL(ieee80211_nan_func_match); 3806 3807 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3808 struct net_device *dev, 3809 const bool enabled) 3810 { 3811 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3812 3813 sdata->u.ap.multicast_to_unicast = enabled; 3814 3815 return 0; 3816 } 3817 3818 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 3819 struct txq_info *txqi) 3820 { 3821 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 3822 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 3823 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 3824 } 3825 3826 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 3827 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 3828 txqstats->backlog_packets = txqi->tin.backlog_packets; 3829 } 3830 3831 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 3832 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 3833 txqstats->flows = txqi->tin.flows; 3834 } 3835 3836 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 3837 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 3838 txqstats->drops = txqi->cstats.drop_count; 3839 } 3840 3841 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 3842 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 3843 txqstats->ecn_marks = txqi->cstats.ecn_mark; 3844 } 3845 3846 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 3847 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 3848 txqstats->overlimit = txqi->tin.overlimit; 3849 } 3850 3851 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 3852 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 3853 txqstats->collisions = txqi->tin.collisions; 3854 } 3855 3856 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 3857 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 3858 txqstats->tx_bytes = txqi->tin.tx_bytes; 3859 } 3860 3861 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 3862 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 3863 txqstats->tx_packets = txqi->tin.tx_packets; 3864 } 3865 } 3866 3867 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 3868 struct wireless_dev *wdev, 3869 struct cfg80211_txq_stats *txqstats) 3870 { 3871 struct ieee80211_local *local = wiphy_priv(wiphy); 3872 struct ieee80211_sub_if_data *sdata; 3873 int ret = 0; 3874 3875 if (!local->ops->wake_tx_queue) 3876 return 1; 3877 3878 spin_lock_bh(&local->fq.lock); 3879 rcu_read_lock(); 3880 3881 if (wdev) { 3882 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3883 if (!sdata->vif.txq) { 3884 ret = 1; 3885 goto out; 3886 } 3887 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 3888 } else { 3889 /* phy stats */ 3890 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 3891 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 3892 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 3893 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 3894 BIT(NL80211_TXQ_STATS_COLLISIONS) | 3895 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 3896 txqstats->backlog_packets = local->fq.backlog; 3897 txqstats->backlog_bytes = local->fq.memory_usage; 3898 txqstats->overlimit = local->fq.overlimit; 3899 txqstats->overmemory = local->fq.overmemory; 3900 txqstats->collisions = local->fq.collisions; 3901 txqstats->max_flows = local->fq.flows_cnt; 3902 } 3903 3904 out: 3905 rcu_read_unlock(); 3906 spin_unlock_bh(&local->fq.lock); 3907 3908 return ret; 3909 } 3910 3911 static int 3912 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 3913 struct net_device *dev, 3914 struct cfg80211_ftm_responder_stats *ftm_stats) 3915 { 3916 struct ieee80211_local *local = wiphy_priv(wiphy); 3917 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3918 3919 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 3920 } 3921 3922 static int 3923 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3924 struct cfg80211_pmsr_request *request) 3925 { 3926 struct ieee80211_local *local = wiphy_priv(wiphy); 3927 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3928 3929 return drv_start_pmsr(local, sdata, request); 3930 } 3931 3932 static void 3933 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3934 struct cfg80211_pmsr_request *request) 3935 { 3936 struct ieee80211_local *local = wiphy_priv(wiphy); 3937 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3938 3939 return drv_abort_pmsr(local, sdata, request); 3940 } 3941 3942 static int ieee80211_set_tid_config(struct wiphy *wiphy, 3943 struct net_device *dev, 3944 struct cfg80211_tid_config *tid_conf) 3945 { 3946 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3947 struct sta_info *sta; 3948 int ret; 3949 3950 if (!sdata->local->ops->set_tid_config) 3951 return -EOPNOTSUPP; 3952 3953 if (!tid_conf->peer) 3954 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 3955 3956 mutex_lock(&sdata->local->sta_mtx); 3957 sta = sta_info_get_bss(sdata, tid_conf->peer); 3958 if (!sta) { 3959 mutex_unlock(&sdata->local->sta_mtx); 3960 return -ENOENT; 3961 } 3962 3963 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 3964 mutex_unlock(&sdata->local->sta_mtx); 3965 3966 return ret; 3967 } 3968 3969 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 3970 struct net_device *dev, 3971 const u8 *peer, u8 tids) 3972 { 3973 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3974 struct sta_info *sta; 3975 int ret; 3976 3977 if (!sdata->local->ops->reset_tid_config) 3978 return -EOPNOTSUPP; 3979 3980 if (!peer) 3981 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 3982 3983 mutex_lock(&sdata->local->sta_mtx); 3984 sta = sta_info_get_bss(sdata, peer); 3985 if (!sta) { 3986 mutex_unlock(&sdata->local->sta_mtx); 3987 return -ENOENT; 3988 } 3989 3990 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 3991 mutex_unlock(&sdata->local->sta_mtx); 3992 3993 return ret; 3994 } 3995 3996 const struct cfg80211_ops mac80211_config_ops = { 3997 .add_virtual_intf = ieee80211_add_iface, 3998 .del_virtual_intf = ieee80211_del_iface, 3999 .change_virtual_intf = ieee80211_change_iface, 4000 .start_p2p_device = ieee80211_start_p2p_device, 4001 .stop_p2p_device = ieee80211_stop_p2p_device, 4002 .add_key = ieee80211_add_key, 4003 .del_key = ieee80211_del_key, 4004 .get_key = ieee80211_get_key, 4005 .set_default_key = ieee80211_config_default_key, 4006 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 4007 .set_default_beacon_key = ieee80211_config_default_beacon_key, 4008 .start_ap = ieee80211_start_ap, 4009 .change_beacon = ieee80211_change_beacon, 4010 .stop_ap = ieee80211_stop_ap, 4011 .add_station = ieee80211_add_station, 4012 .del_station = ieee80211_del_station, 4013 .change_station = ieee80211_change_station, 4014 .get_station = ieee80211_get_station, 4015 .dump_station = ieee80211_dump_station, 4016 .dump_survey = ieee80211_dump_survey, 4017 #ifdef CONFIG_MAC80211_MESH 4018 .add_mpath = ieee80211_add_mpath, 4019 .del_mpath = ieee80211_del_mpath, 4020 .change_mpath = ieee80211_change_mpath, 4021 .get_mpath = ieee80211_get_mpath, 4022 .dump_mpath = ieee80211_dump_mpath, 4023 .get_mpp = ieee80211_get_mpp, 4024 .dump_mpp = ieee80211_dump_mpp, 4025 .update_mesh_config = ieee80211_update_mesh_config, 4026 .get_mesh_config = ieee80211_get_mesh_config, 4027 .join_mesh = ieee80211_join_mesh, 4028 .leave_mesh = ieee80211_leave_mesh, 4029 #endif 4030 .join_ocb = ieee80211_join_ocb, 4031 .leave_ocb = ieee80211_leave_ocb, 4032 .change_bss = ieee80211_change_bss, 4033 .set_txq_params = ieee80211_set_txq_params, 4034 .set_monitor_channel = ieee80211_set_monitor_channel, 4035 .suspend = ieee80211_suspend, 4036 .resume = ieee80211_resume, 4037 .scan = ieee80211_scan, 4038 .abort_scan = ieee80211_abort_scan, 4039 .sched_scan_start = ieee80211_sched_scan_start, 4040 .sched_scan_stop = ieee80211_sched_scan_stop, 4041 .auth = ieee80211_auth, 4042 .assoc = ieee80211_assoc, 4043 .deauth = ieee80211_deauth, 4044 .disassoc = ieee80211_disassoc, 4045 .join_ibss = ieee80211_join_ibss, 4046 .leave_ibss = ieee80211_leave_ibss, 4047 .set_mcast_rate = ieee80211_set_mcast_rate, 4048 .set_wiphy_params = ieee80211_set_wiphy_params, 4049 .set_tx_power = ieee80211_set_tx_power, 4050 .get_tx_power = ieee80211_get_tx_power, 4051 .set_wds_peer = ieee80211_set_wds_peer, 4052 .rfkill_poll = ieee80211_rfkill_poll, 4053 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 4054 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 4055 .set_power_mgmt = ieee80211_set_power_mgmt, 4056 .set_bitrate_mask = ieee80211_set_bitrate_mask, 4057 .remain_on_channel = ieee80211_remain_on_channel, 4058 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 4059 .mgmt_tx = ieee80211_mgmt_tx, 4060 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 4061 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 4062 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 4063 .update_mgmt_frame_registrations = 4064 ieee80211_update_mgmt_frame_registrations, 4065 .set_antenna = ieee80211_set_antenna, 4066 .get_antenna = ieee80211_get_antenna, 4067 .set_rekey_data = ieee80211_set_rekey_data, 4068 .tdls_oper = ieee80211_tdls_oper, 4069 .tdls_mgmt = ieee80211_tdls_mgmt, 4070 .tdls_channel_switch = ieee80211_tdls_channel_switch, 4071 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 4072 .probe_client = ieee80211_probe_client, 4073 .set_noack_map = ieee80211_set_noack_map, 4074 #ifdef CONFIG_PM 4075 .set_wakeup = ieee80211_set_wakeup, 4076 #endif 4077 .get_channel = ieee80211_cfg_get_channel, 4078 .start_radar_detection = ieee80211_start_radar_detection, 4079 .end_cac = ieee80211_end_cac, 4080 .channel_switch = ieee80211_channel_switch, 4081 .set_qos_map = ieee80211_set_qos_map, 4082 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 4083 .add_tx_ts = ieee80211_add_tx_ts, 4084 .del_tx_ts = ieee80211_del_tx_ts, 4085 .start_nan = ieee80211_start_nan, 4086 .stop_nan = ieee80211_stop_nan, 4087 .nan_change_conf = ieee80211_nan_change_conf, 4088 .add_nan_func = ieee80211_add_nan_func, 4089 .del_nan_func = ieee80211_del_nan_func, 4090 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 4091 .tx_control_port = ieee80211_tx_control_port, 4092 .get_txq_stats = ieee80211_get_txq_stats, 4093 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 4094 .start_pmsr = ieee80211_start_pmsr, 4095 .abort_pmsr = ieee80211_abort_pmsr, 4096 .probe_mesh_link = ieee80211_probe_mesh_link, 4097 .set_tid_config = ieee80211_set_tid_config, 4098 .reset_tid_config = ieee80211_reset_tid_config, 4099 }; 4100