1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * mac80211 configuration hooks for cfg80211 4 * 5 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 6 * Copyright 2013-2015 Intel Mobile Communications GmbH 7 * Copyright (C) 2015-2017 Intel Deutschland GmbH 8 * Copyright (C) 2018-2019 Intel Corporation 9 * Copyright (C) 2018 Intel Corporation 10 */ 11 12 #include <linux/ieee80211.h> 13 #include <linux/nl80211.h> 14 #include <linux/rtnetlink.h> 15 #include <linux/slab.h> 16 #include <net/net_namespace.h> 17 #include <linux/rcupdate.h> 18 #include <linux/fips.h> 19 #include <linux/if_ether.h> 20 #include <net/cfg80211.h> 21 #include "ieee80211_i.h" 22 #include "driver-ops.h" 23 #include "rate.h" 24 #include "mesh.h" 25 #include "wme.h" 26 27 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 28 struct vif_params *params) 29 { 30 bool mu_mimo_groups = false; 31 bool mu_mimo_follow = false; 32 33 if (params->vht_mumimo_groups) { 34 u64 membership; 35 36 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 37 38 memcpy(sdata->vif.bss_conf.mu_group.membership, 39 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 40 memcpy(sdata->vif.bss_conf.mu_group.position, 41 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 42 WLAN_USER_POSITION_LEN); 43 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS); 44 /* don't care about endianness - just check for 0 */ 45 memcpy(&membership, params->vht_mumimo_groups, 46 WLAN_MEMBERSHIP_LEN); 47 mu_mimo_groups = membership != 0; 48 } 49 50 if (params->vht_mumimo_follow_addr) { 51 mu_mimo_follow = 52 is_valid_ether_addr(params->vht_mumimo_follow_addr); 53 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 54 params->vht_mumimo_follow_addr); 55 } 56 57 sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 58 } 59 60 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 61 struct vif_params *params) 62 { 63 struct ieee80211_local *local = sdata->local; 64 struct ieee80211_sub_if_data *monitor_sdata; 65 66 /* check flags first */ 67 if (params->flags && ieee80211_sdata_running(sdata)) { 68 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 69 70 /* 71 * Prohibit MONITOR_FLAG_COOK_FRAMES and 72 * MONITOR_FLAG_ACTIVE to be changed while the 73 * interface is up. 74 * Else we would need to add a lot of cruft 75 * to update everything: 76 * cooked_mntrs, monitor and all fif_* counters 77 * reconfigure hardware 78 */ 79 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 80 return -EBUSY; 81 } 82 83 /* also validate MU-MIMO change */ 84 monitor_sdata = rtnl_dereference(local->monitor_sdata); 85 86 if (!monitor_sdata && 87 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 88 return -EOPNOTSUPP; 89 90 /* apply all changes now - no failures allowed */ 91 92 if (monitor_sdata) 93 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 94 95 if (params->flags) { 96 if (ieee80211_sdata_running(sdata)) { 97 ieee80211_adjust_monitor_flags(sdata, -1); 98 sdata->u.mntr.flags = params->flags; 99 ieee80211_adjust_monitor_flags(sdata, 1); 100 101 ieee80211_configure_filter(local); 102 } else { 103 /* 104 * Because the interface is down, ieee80211_do_stop 105 * and ieee80211_do_open take care of "everything" 106 * mentioned in the comment above. 107 */ 108 sdata->u.mntr.flags = params->flags; 109 } 110 } 111 112 return 0; 113 } 114 115 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 116 const char *name, 117 unsigned char name_assign_type, 118 enum nl80211_iftype type, 119 struct vif_params *params) 120 { 121 struct ieee80211_local *local = wiphy_priv(wiphy); 122 struct wireless_dev *wdev; 123 struct ieee80211_sub_if_data *sdata; 124 int err; 125 126 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 127 if (err) 128 return ERR_PTR(err); 129 130 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 131 132 if (type == NL80211_IFTYPE_MONITOR) { 133 err = ieee80211_set_mon_options(sdata, params); 134 if (err) { 135 ieee80211_if_remove(sdata); 136 return NULL; 137 } 138 } 139 140 return wdev; 141 } 142 143 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 144 { 145 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 146 147 return 0; 148 } 149 150 static int ieee80211_change_iface(struct wiphy *wiphy, 151 struct net_device *dev, 152 enum nl80211_iftype type, 153 struct vif_params *params) 154 { 155 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 156 int ret; 157 158 ret = ieee80211_if_change_type(sdata, type); 159 if (ret) 160 return ret; 161 162 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 163 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 164 ieee80211_check_fast_rx_iface(sdata); 165 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 166 sdata->u.mgd.use_4addr = params->use_4addr; 167 } 168 169 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 170 ret = ieee80211_set_mon_options(sdata, params); 171 if (ret) 172 return ret; 173 } 174 175 return 0; 176 } 177 178 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 179 struct wireless_dev *wdev) 180 { 181 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 182 int ret; 183 184 mutex_lock(&sdata->local->chanctx_mtx); 185 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 186 mutex_unlock(&sdata->local->chanctx_mtx); 187 if (ret < 0) 188 return ret; 189 190 return ieee80211_do_open(wdev, true); 191 } 192 193 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 194 struct wireless_dev *wdev) 195 { 196 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 197 } 198 199 static int ieee80211_start_nan(struct wiphy *wiphy, 200 struct wireless_dev *wdev, 201 struct cfg80211_nan_conf *conf) 202 { 203 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 204 int ret; 205 206 mutex_lock(&sdata->local->chanctx_mtx); 207 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 208 mutex_unlock(&sdata->local->chanctx_mtx); 209 if (ret < 0) 210 return ret; 211 212 ret = ieee80211_do_open(wdev, true); 213 if (ret) 214 return ret; 215 216 ret = drv_start_nan(sdata->local, sdata, conf); 217 if (ret) 218 ieee80211_sdata_stop(sdata); 219 220 sdata->u.nan.conf = *conf; 221 222 return ret; 223 } 224 225 static void ieee80211_stop_nan(struct wiphy *wiphy, 226 struct wireless_dev *wdev) 227 { 228 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 229 230 drv_stop_nan(sdata->local, sdata); 231 ieee80211_sdata_stop(sdata); 232 } 233 234 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 235 struct wireless_dev *wdev, 236 struct cfg80211_nan_conf *conf, 237 u32 changes) 238 { 239 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 240 struct cfg80211_nan_conf new_conf; 241 int ret = 0; 242 243 if (sdata->vif.type != NL80211_IFTYPE_NAN) 244 return -EOPNOTSUPP; 245 246 if (!ieee80211_sdata_running(sdata)) 247 return -ENETDOWN; 248 249 new_conf = sdata->u.nan.conf; 250 251 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 252 new_conf.master_pref = conf->master_pref; 253 254 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 255 new_conf.bands = conf->bands; 256 257 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 258 if (!ret) 259 sdata->u.nan.conf = new_conf; 260 261 return ret; 262 } 263 264 static int ieee80211_add_nan_func(struct wiphy *wiphy, 265 struct wireless_dev *wdev, 266 struct cfg80211_nan_func *nan_func) 267 { 268 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 269 int ret; 270 271 if (sdata->vif.type != NL80211_IFTYPE_NAN) 272 return -EOPNOTSUPP; 273 274 if (!ieee80211_sdata_running(sdata)) 275 return -ENETDOWN; 276 277 spin_lock_bh(&sdata->u.nan.func_lock); 278 279 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 280 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 281 GFP_ATOMIC); 282 spin_unlock_bh(&sdata->u.nan.func_lock); 283 284 if (ret < 0) 285 return ret; 286 287 nan_func->instance_id = ret; 288 289 WARN_ON(nan_func->instance_id == 0); 290 291 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 292 if (ret) { 293 spin_lock_bh(&sdata->u.nan.func_lock); 294 idr_remove(&sdata->u.nan.function_inst_ids, 295 nan_func->instance_id); 296 spin_unlock_bh(&sdata->u.nan.func_lock); 297 } 298 299 return ret; 300 } 301 302 static struct cfg80211_nan_func * 303 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 304 u64 cookie) 305 { 306 struct cfg80211_nan_func *func; 307 int id; 308 309 lockdep_assert_held(&sdata->u.nan.func_lock); 310 311 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 312 if (func->cookie == cookie) 313 return func; 314 } 315 316 return NULL; 317 } 318 319 static void ieee80211_del_nan_func(struct wiphy *wiphy, 320 struct wireless_dev *wdev, u64 cookie) 321 { 322 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 323 struct cfg80211_nan_func *func; 324 u8 instance_id = 0; 325 326 if (sdata->vif.type != NL80211_IFTYPE_NAN || 327 !ieee80211_sdata_running(sdata)) 328 return; 329 330 spin_lock_bh(&sdata->u.nan.func_lock); 331 332 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 333 if (func) 334 instance_id = func->instance_id; 335 336 spin_unlock_bh(&sdata->u.nan.func_lock); 337 338 if (instance_id) 339 drv_del_nan_func(sdata->local, sdata, instance_id); 340 } 341 342 static int ieee80211_set_noack_map(struct wiphy *wiphy, 343 struct net_device *dev, 344 u16 noack_map) 345 { 346 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 347 348 sdata->noack_map = noack_map; 349 350 ieee80211_check_fast_xmit_iface(sdata); 351 352 return 0; 353 } 354 355 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 356 const u8 *mac_addr, u8 key_idx) 357 { 358 struct ieee80211_local *local = sdata->local; 359 struct ieee80211_key *key; 360 struct sta_info *sta; 361 int ret = -EINVAL; 362 363 if (!wiphy_ext_feature_isset(local->hw.wiphy, 364 NL80211_EXT_FEATURE_EXT_KEY_ID)) 365 return -EINVAL; 366 367 sta = sta_info_get_bss(sdata, mac_addr); 368 369 if (!sta) 370 return -EINVAL; 371 372 if (sta->ptk_idx == key_idx) 373 return 0; 374 375 mutex_lock(&local->key_mtx); 376 key = key_mtx_dereference(local, sta->ptk[key_idx]); 377 378 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 379 ret = ieee80211_set_tx_key(key); 380 381 mutex_unlock(&local->key_mtx); 382 return ret; 383 } 384 385 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 386 u8 key_idx, bool pairwise, const u8 *mac_addr, 387 struct key_params *params) 388 { 389 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 390 struct ieee80211_local *local = sdata->local; 391 struct sta_info *sta = NULL; 392 const struct ieee80211_cipher_scheme *cs = NULL; 393 struct ieee80211_key *key; 394 int err; 395 396 if (!ieee80211_sdata_running(sdata)) 397 return -ENETDOWN; 398 399 if (pairwise && params->mode == NL80211_KEY_SET_TX) 400 return ieee80211_set_tx(sdata, mac_addr, key_idx); 401 402 /* reject WEP and TKIP keys if WEP failed to initialize */ 403 switch (params->cipher) { 404 case WLAN_CIPHER_SUITE_WEP40: 405 case WLAN_CIPHER_SUITE_TKIP: 406 case WLAN_CIPHER_SUITE_WEP104: 407 if (WARN_ON_ONCE(fips_enabled)) 408 return -EINVAL; 409 case WLAN_CIPHER_SUITE_CCMP: 410 case WLAN_CIPHER_SUITE_CCMP_256: 411 case WLAN_CIPHER_SUITE_AES_CMAC: 412 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 413 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 414 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 415 case WLAN_CIPHER_SUITE_GCMP: 416 case WLAN_CIPHER_SUITE_GCMP_256: 417 break; 418 default: 419 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); 420 break; 421 } 422 423 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 424 params->key, params->seq_len, params->seq, 425 cs); 426 if (IS_ERR(key)) 427 return PTR_ERR(key); 428 429 if (pairwise) 430 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 431 432 if (params->mode == NL80211_KEY_NO_TX) 433 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 434 435 mutex_lock(&local->sta_mtx); 436 437 if (mac_addr) { 438 sta = sta_info_get_bss(sdata, mac_addr); 439 /* 440 * The ASSOC test makes sure the driver is ready to 441 * receive the key. When wpa_supplicant has roamed 442 * using FT, it attempts to set the key before 443 * association has completed, this rejects that attempt 444 * so it will set the key again after association. 445 * 446 * TODO: accept the key if we have a station entry and 447 * add it to the device after the station. 448 */ 449 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 450 ieee80211_key_free_unused(key); 451 err = -ENOENT; 452 goto out_unlock; 453 } 454 } 455 456 switch (sdata->vif.type) { 457 case NL80211_IFTYPE_STATION: 458 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 459 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 460 break; 461 case NL80211_IFTYPE_AP: 462 case NL80211_IFTYPE_AP_VLAN: 463 /* Keys without a station are used for TX only */ 464 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 465 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 466 break; 467 case NL80211_IFTYPE_ADHOC: 468 /* no MFP (yet) */ 469 break; 470 case NL80211_IFTYPE_MESH_POINT: 471 #ifdef CONFIG_MAC80211_MESH 472 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 473 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 474 break; 475 #endif 476 case NL80211_IFTYPE_WDS: 477 case NL80211_IFTYPE_MONITOR: 478 case NL80211_IFTYPE_P2P_DEVICE: 479 case NL80211_IFTYPE_NAN: 480 case NL80211_IFTYPE_UNSPECIFIED: 481 case NUM_NL80211_IFTYPES: 482 case NL80211_IFTYPE_P2P_CLIENT: 483 case NL80211_IFTYPE_P2P_GO: 484 case NL80211_IFTYPE_OCB: 485 /* shouldn't happen */ 486 WARN_ON_ONCE(1); 487 break; 488 } 489 490 if (sta) 491 sta->cipher_scheme = cs; 492 493 err = ieee80211_key_link(key, sdata, sta); 494 495 out_unlock: 496 mutex_unlock(&local->sta_mtx); 497 498 return err; 499 } 500 501 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 502 u8 key_idx, bool pairwise, const u8 *mac_addr) 503 { 504 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 505 struct ieee80211_local *local = sdata->local; 506 struct sta_info *sta; 507 struct ieee80211_key *key = NULL; 508 int ret; 509 510 mutex_lock(&local->sta_mtx); 511 mutex_lock(&local->key_mtx); 512 513 if (mac_addr) { 514 ret = -ENOENT; 515 516 sta = sta_info_get_bss(sdata, mac_addr); 517 if (!sta) 518 goto out_unlock; 519 520 if (pairwise) 521 key = key_mtx_dereference(local, sta->ptk[key_idx]); 522 else 523 key = key_mtx_dereference(local, sta->gtk[key_idx]); 524 } else 525 key = key_mtx_dereference(local, sdata->keys[key_idx]); 526 527 if (!key) { 528 ret = -ENOENT; 529 goto out_unlock; 530 } 531 532 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 533 534 ret = 0; 535 out_unlock: 536 mutex_unlock(&local->key_mtx); 537 mutex_unlock(&local->sta_mtx); 538 539 return ret; 540 } 541 542 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 543 u8 key_idx, bool pairwise, const u8 *mac_addr, 544 void *cookie, 545 void (*callback)(void *cookie, 546 struct key_params *params)) 547 { 548 struct ieee80211_sub_if_data *sdata; 549 struct sta_info *sta = NULL; 550 u8 seq[6] = {0}; 551 struct key_params params; 552 struct ieee80211_key *key = NULL; 553 u64 pn64; 554 u32 iv32; 555 u16 iv16; 556 int err = -ENOENT; 557 struct ieee80211_key_seq kseq = {}; 558 559 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 560 561 rcu_read_lock(); 562 563 if (mac_addr) { 564 sta = sta_info_get_bss(sdata, mac_addr); 565 if (!sta) 566 goto out; 567 568 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 569 key = rcu_dereference(sta->ptk[key_idx]); 570 else if (!pairwise && 571 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS + 572 NUM_DEFAULT_BEACON_KEYS) 573 key = rcu_dereference(sta->gtk[key_idx]); 574 } else 575 key = rcu_dereference(sdata->keys[key_idx]); 576 577 if (!key) 578 goto out; 579 580 memset(¶ms, 0, sizeof(params)); 581 582 params.cipher = key->conf.cipher; 583 584 switch (key->conf.cipher) { 585 case WLAN_CIPHER_SUITE_TKIP: 586 pn64 = atomic64_read(&key->conf.tx_pn); 587 iv32 = TKIP_PN_TO_IV32(pn64); 588 iv16 = TKIP_PN_TO_IV16(pn64); 589 590 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 591 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 592 drv_get_key_seq(sdata->local, key, &kseq); 593 iv32 = kseq.tkip.iv32; 594 iv16 = kseq.tkip.iv16; 595 } 596 597 seq[0] = iv16 & 0xff; 598 seq[1] = (iv16 >> 8) & 0xff; 599 seq[2] = iv32 & 0xff; 600 seq[3] = (iv32 >> 8) & 0xff; 601 seq[4] = (iv32 >> 16) & 0xff; 602 seq[5] = (iv32 >> 24) & 0xff; 603 params.seq = seq; 604 params.seq_len = 6; 605 break; 606 case WLAN_CIPHER_SUITE_CCMP: 607 case WLAN_CIPHER_SUITE_CCMP_256: 608 case WLAN_CIPHER_SUITE_AES_CMAC: 609 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 610 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 611 offsetof(typeof(kseq), aes_cmac)); 612 /* fall through */ 613 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 614 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 615 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 616 offsetof(typeof(kseq), aes_gmac)); 617 /* fall through */ 618 case WLAN_CIPHER_SUITE_GCMP: 619 case WLAN_CIPHER_SUITE_GCMP_256: 620 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 621 offsetof(typeof(kseq), gcmp)); 622 623 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 624 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 625 drv_get_key_seq(sdata->local, key, &kseq); 626 memcpy(seq, kseq.ccmp.pn, 6); 627 } else { 628 pn64 = atomic64_read(&key->conf.tx_pn); 629 seq[0] = pn64; 630 seq[1] = pn64 >> 8; 631 seq[2] = pn64 >> 16; 632 seq[3] = pn64 >> 24; 633 seq[4] = pn64 >> 32; 634 seq[5] = pn64 >> 40; 635 } 636 params.seq = seq; 637 params.seq_len = 6; 638 break; 639 default: 640 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 641 break; 642 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 643 break; 644 drv_get_key_seq(sdata->local, key, &kseq); 645 params.seq = kseq.hw.seq; 646 params.seq_len = kseq.hw.seq_len; 647 break; 648 } 649 650 params.key = key->conf.key; 651 params.key_len = key->conf.keylen; 652 653 callback(cookie, ¶ms); 654 err = 0; 655 656 out: 657 rcu_read_unlock(); 658 return err; 659 } 660 661 static int ieee80211_config_default_key(struct wiphy *wiphy, 662 struct net_device *dev, 663 u8 key_idx, bool uni, 664 bool multi) 665 { 666 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 667 668 ieee80211_set_default_key(sdata, key_idx, uni, multi); 669 670 return 0; 671 } 672 673 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 674 struct net_device *dev, 675 u8 key_idx) 676 { 677 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 678 679 ieee80211_set_default_mgmt_key(sdata, key_idx); 680 681 return 0; 682 } 683 684 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 685 struct net_device *dev, 686 u8 key_idx) 687 { 688 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 689 690 ieee80211_set_default_beacon_key(sdata, key_idx); 691 692 return 0; 693 } 694 695 void sta_set_rate_info_tx(struct sta_info *sta, 696 const struct ieee80211_tx_rate *rate, 697 struct rate_info *rinfo) 698 { 699 rinfo->flags = 0; 700 if (rate->flags & IEEE80211_TX_RC_MCS) { 701 rinfo->flags |= RATE_INFO_FLAGS_MCS; 702 rinfo->mcs = rate->idx; 703 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 704 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 705 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 706 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 707 } else { 708 struct ieee80211_supported_band *sband; 709 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 710 u16 brate; 711 712 sband = ieee80211_get_sband(sta->sdata); 713 if (sband) { 714 brate = sband->bitrates[rate->idx].bitrate; 715 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 716 } 717 } 718 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 719 rinfo->bw = RATE_INFO_BW_40; 720 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 721 rinfo->bw = RATE_INFO_BW_80; 722 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 723 rinfo->bw = RATE_INFO_BW_160; 724 else 725 rinfo->bw = RATE_INFO_BW_20; 726 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 727 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 728 } 729 730 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 731 int idx, u8 *mac, struct station_info *sinfo) 732 { 733 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 734 struct ieee80211_local *local = sdata->local; 735 struct sta_info *sta; 736 int ret = -ENOENT; 737 738 mutex_lock(&local->sta_mtx); 739 740 sta = sta_info_get_by_idx(sdata, idx); 741 if (sta) { 742 ret = 0; 743 memcpy(mac, sta->sta.addr, ETH_ALEN); 744 sta_set_sinfo(sta, sinfo, true); 745 } 746 747 mutex_unlock(&local->sta_mtx); 748 749 return ret; 750 } 751 752 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 753 int idx, struct survey_info *survey) 754 { 755 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 756 757 return drv_get_survey(local, idx, survey); 758 } 759 760 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 761 const u8 *mac, struct station_info *sinfo) 762 { 763 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 764 struct ieee80211_local *local = sdata->local; 765 struct sta_info *sta; 766 int ret = -ENOENT; 767 768 mutex_lock(&local->sta_mtx); 769 770 sta = sta_info_get_bss(sdata, mac); 771 if (sta) { 772 ret = 0; 773 sta_set_sinfo(sta, sinfo, true); 774 } 775 776 mutex_unlock(&local->sta_mtx); 777 778 return ret; 779 } 780 781 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 782 struct cfg80211_chan_def *chandef) 783 { 784 struct ieee80211_local *local = wiphy_priv(wiphy); 785 struct ieee80211_sub_if_data *sdata; 786 int ret = 0; 787 788 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 789 return 0; 790 791 mutex_lock(&local->mtx); 792 if (local->use_chanctx) { 793 sdata = rtnl_dereference(local->monitor_sdata); 794 if (sdata) { 795 ieee80211_vif_release_channel(sdata); 796 ret = ieee80211_vif_use_channel(sdata, chandef, 797 IEEE80211_CHANCTX_EXCLUSIVE); 798 } 799 } else if (local->open_count == local->monitors) { 800 local->_oper_chandef = *chandef; 801 ieee80211_hw_config(local, 0); 802 } 803 804 if (ret == 0) 805 local->monitor_chandef = *chandef; 806 mutex_unlock(&local->mtx); 807 808 return ret; 809 } 810 811 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 812 const u8 *resp, size_t resp_len, 813 const struct ieee80211_csa_settings *csa) 814 { 815 struct probe_resp *new, *old; 816 817 if (!resp || !resp_len) 818 return 1; 819 820 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 821 822 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 823 if (!new) 824 return -ENOMEM; 825 826 new->len = resp_len; 827 memcpy(new->data, resp, resp_len); 828 829 if (csa) 830 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp, 831 csa->n_counter_offsets_presp * 832 sizeof(new->csa_counter_offsets[0])); 833 834 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 835 if (old) 836 kfree_rcu(old, rcu_head); 837 838 return 0; 839 } 840 841 static int ieee80211_set_ftm_responder_params( 842 struct ieee80211_sub_if_data *sdata, 843 const u8 *lci, size_t lci_len, 844 const u8 *civicloc, size_t civicloc_len) 845 { 846 struct ieee80211_ftm_responder_params *new, *old; 847 struct ieee80211_bss_conf *bss_conf; 848 u8 *pos; 849 int len; 850 851 if (!lci_len && !civicloc_len) 852 return 0; 853 854 bss_conf = &sdata->vif.bss_conf; 855 old = bss_conf->ftmr_params; 856 len = lci_len + civicloc_len; 857 858 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 859 if (!new) 860 return -ENOMEM; 861 862 pos = (u8 *)(new + 1); 863 if (lci_len) { 864 new->lci_len = lci_len; 865 new->lci = pos; 866 memcpy(pos, lci, lci_len); 867 pos += lci_len; 868 } 869 870 if (civicloc_len) { 871 new->civicloc_len = civicloc_len; 872 new->civicloc = pos; 873 memcpy(pos, civicloc, civicloc_len); 874 pos += civicloc_len; 875 } 876 877 bss_conf->ftmr_params = new; 878 kfree(old); 879 880 return 0; 881 } 882 883 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 884 struct cfg80211_beacon_data *params, 885 const struct ieee80211_csa_settings *csa) 886 { 887 struct beacon_data *new, *old; 888 int new_head_len, new_tail_len; 889 int size, err; 890 u32 changed = BSS_CHANGED_BEACON; 891 892 old = sdata_dereference(sdata->u.ap.beacon, sdata); 893 894 895 /* Need to have a beacon head if we don't have one yet */ 896 if (!params->head && !old) 897 return -EINVAL; 898 899 /* new or old head? */ 900 if (params->head) 901 new_head_len = params->head_len; 902 else 903 new_head_len = old->head_len; 904 905 /* new or old tail? */ 906 if (params->tail || !old) 907 /* params->tail_len will be zero for !params->tail */ 908 new_tail_len = params->tail_len; 909 else 910 new_tail_len = old->tail_len; 911 912 size = sizeof(*new) + new_head_len + new_tail_len; 913 914 new = kzalloc(size, GFP_KERNEL); 915 if (!new) 916 return -ENOMEM; 917 918 /* start filling the new info now */ 919 920 /* 921 * pointers go into the block we allocated, 922 * memory is | beacon_data | head | tail | 923 */ 924 new->head = ((u8 *) new) + sizeof(*new); 925 new->tail = new->head + new_head_len; 926 new->head_len = new_head_len; 927 new->tail_len = new_tail_len; 928 929 if (csa) { 930 new->csa_current_counter = csa->count; 931 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon, 932 csa->n_counter_offsets_beacon * 933 sizeof(new->csa_counter_offsets[0])); 934 } 935 936 /* copy in head */ 937 if (params->head) 938 memcpy(new->head, params->head, new_head_len); 939 else 940 memcpy(new->head, old->head, new_head_len); 941 942 /* copy in optional tail */ 943 if (params->tail) 944 memcpy(new->tail, params->tail, new_tail_len); 945 else 946 if (old) 947 memcpy(new->tail, old->tail, new_tail_len); 948 949 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 950 params->probe_resp_len, csa); 951 if (err < 0) { 952 kfree(new); 953 return err; 954 } 955 if (err == 0) 956 changed |= BSS_CHANGED_AP_PROBE_RESP; 957 958 if (params->ftm_responder != -1) { 959 sdata->vif.bss_conf.ftm_responder = params->ftm_responder; 960 err = ieee80211_set_ftm_responder_params(sdata, 961 params->lci, 962 params->lci_len, 963 params->civicloc, 964 params->civicloc_len); 965 966 if (err < 0) { 967 kfree(new); 968 return err; 969 } 970 971 changed |= BSS_CHANGED_FTM_RESPONDER; 972 } 973 974 rcu_assign_pointer(sdata->u.ap.beacon, new); 975 976 if (old) 977 kfree_rcu(old, rcu_head); 978 979 return changed; 980 } 981 982 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 983 struct cfg80211_ap_settings *params) 984 { 985 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 986 struct ieee80211_local *local = sdata->local; 987 struct beacon_data *old; 988 struct ieee80211_sub_if_data *vlan; 989 u32 changed = BSS_CHANGED_BEACON_INT | 990 BSS_CHANGED_BEACON_ENABLED | 991 BSS_CHANGED_BEACON | 992 BSS_CHANGED_SSID | 993 BSS_CHANGED_P2P_PS | 994 BSS_CHANGED_TXPOWER | 995 BSS_CHANGED_TWT | 996 BSS_CHANGED_HE_OBSS_PD | 997 BSS_CHANGED_HE_BSS_COLOR; 998 int err; 999 int prev_beacon_int; 1000 1001 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1002 if (old) 1003 return -EALREADY; 1004 1005 if (params->smps_mode != NL80211_SMPS_OFF) 1006 return -ENOTSUPP; 1007 1008 sdata->smps_mode = IEEE80211_SMPS_OFF; 1009 1010 sdata->needed_rx_chains = sdata->local->rx_chains; 1011 1012 prev_beacon_int = sdata->vif.bss_conf.beacon_int; 1013 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 1014 1015 if (params->he_cap) 1016 sdata->vif.bss_conf.he_support = true; 1017 1018 mutex_lock(&local->mtx); 1019 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 1020 IEEE80211_CHANCTX_SHARED); 1021 if (!err) 1022 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 1023 mutex_unlock(&local->mtx); 1024 if (err) { 1025 sdata->vif.bss_conf.beacon_int = prev_beacon_int; 1026 return err; 1027 } 1028 1029 /* 1030 * Apply control port protocol, this allows us to 1031 * not encrypt dynamic WEP control frames. 1032 */ 1033 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1034 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1035 sdata->control_port_over_nl80211 = 1036 params->crypto.control_port_over_nl80211; 1037 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 1038 ¶ms->crypto, 1039 sdata->vif.type); 1040 1041 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1042 vlan->control_port_protocol = 1043 params->crypto.control_port_ethertype; 1044 vlan->control_port_no_encrypt = 1045 params->crypto.control_port_no_encrypt; 1046 vlan->control_port_over_nl80211 = 1047 params->crypto.control_port_over_nl80211; 1048 vlan->encrypt_headroom = 1049 ieee80211_cs_headroom(sdata->local, 1050 ¶ms->crypto, 1051 vlan->vif.type); 1052 } 1053 1054 sdata->vif.bss_conf.dtim_period = params->dtim_period; 1055 sdata->vif.bss_conf.enable_beacon = true; 1056 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 1057 sdata->vif.bss_conf.twt_responder = params->twt_responder; 1058 memcpy(&sdata->vif.bss_conf.he_obss_pd, ¶ms->he_obss_pd, 1059 sizeof(struct ieee80211_he_obss_pd)); 1060 memcpy(&sdata->vif.bss_conf.he_bss_color, ¶ms->he_bss_color, 1061 sizeof(struct ieee80211_he_bss_color)); 1062 1063 sdata->vif.bss_conf.ssid_len = params->ssid_len; 1064 if (params->ssid_len) 1065 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 1066 params->ssid_len); 1067 sdata->vif.bss_conf.hidden_ssid = 1068 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1069 1070 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 1071 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 1072 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 1073 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1074 if (params->p2p_opp_ps) 1075 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1076 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1077 1078 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); 1079 if (err < 0) { 1080 ieee80211_vif_release_channel(sdata); 1081 return err; 1082 } 1083 changed |= err; 1084 1085 err = drv_start_ap(sdata->local, sdata); 1086 if (err) { 1087 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1088 1089 if (old) 1090 kfree_rcu(old, rcu_head); 1091 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1092 ieee80211_vif_release_channel(sdata); 1093 return err; 1094 } 1095 1096 ieee80211_recalc_dtim(local, sdata); 1097 ieee80211_bss_info_change_notify(sdata, changed); 1098 1099 netif_carrier_on(dev); 1100 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1101 netif_carrier_on(vlan->dev); 1102 1103 return 0; 1104 } 1105 1106 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1107 struct cfg80211_beacon_data *params) 1108 { 1109 struct ieee80211_sub_if_data *sdata; 1110 struct beacon_data *old; 1111 int err; 1112 1113 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1114 sdata_assert_lock(sdata); 1115 1116 /* don't allow changing the beacon while CSA is in place - offset 1117 * of channel switch counter may change 1118 */ 1119 if (sdata->vif.csa_active) 1120 return -EBUSY; 1121 1122 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1123 if (!old) 1124 return -ENOENT; 1125 1126 err = ieee80211_assign_beacon(sdata, params, NULL); 1127 if (err < 0) 1128 return err; 1129 ieee80211_bss_info_change_notify(sdata, err); 1130 return 0; 1131 } 1132 1133 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1134 { 1135 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1136 struct ieee80211_sub_if_data *vlan; 1137 struct ieee80211_local *local = sdata->local; 1138 struct beacon_data *old_beacon; 1139 struct probe_resp *old_probe_resp; 1140 struct cfg80211_chan_def chandef; 1141 1142 sdata_assert_lock(sdata); 1143 1144 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1145 if (!old_beacon) 1146 return -ENOENT; 1147 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1148 1149 /* abort any running channel switch */ 1150 mutex_lock(&local->mtx); 1151 sdata->vif.csa_active = false; 1152 if (sdata->csa_block_tx) { 1153 ieee80211_wake_vif_queues(local, sdata, 1154 IEEE80211_QUEUE_STOP_REASON_CSA); 1155 sdata->csa_block_tx = false; 1156 } 1157 1158 mutex_unlock(&local->mtx); 1159 1160 kfree(sdata->u.ap.next_beacon); 1161 sdata->u.ap.next_beacon = NULL; 1162 1163 /* turn off carrier for this interface and dependent VLANs */ 1164 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1165 netif_carrier_off(vlan->dev); 1166 netif_carrier_off(dev); 1167 1168 /* remove beacon and probe response */ 1169 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1170 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1171 kfree_rcu(old_beacon, rcu_head); 1172 if (old_probe_resp) 1173 kfree_rcu(old_probe_resp, rcu_head); 1174 1175 kfree(sdata->vif.bss_conf.ftmr_params); 1176 sdata->vif.bss_conf.ftmr_params = NULL; 1177 1178 __sta_info_flush(sdata, true); 1179 ieee80211_free_keys(sdata, true); 1180 1181 sdata->vif.bss_conf.enable_beacon = false; 1182 sdata->vif.bss_conf.ssid_len = 0; 1183 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1184 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1185 1186 if (sdata->wdev.cac_started) { 1187 chandef = sdata->vif.bss_conf.chandef; 1188 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1189 cfg80211_cac_event(sdata->dev, &chandef, 1190 NL80211_RADAR_CAC_ABORTED, 1191 GFP_KERNEL); 1192 } 1193 1194 drv_stop_ap(sdata->local, sdata); 1195 1196 /* free all potentially still buffered bcast frames */ 1197 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1198 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1199 1200 mutex_lock(&local->mtx); 1201 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1202 ieee80211_vif_release_channel(sdata); 1203 mutex_unlock(&local->mtx); 1204 1205 return 0; 1206 } 1207 1208 static int sta_apply_auth_flags(struct ieee80211_local *local, 1209 struct sta_info *sta, 1210 u32 mask, u32 set) 1211 { 1212 int ret; 1213 1214 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1215 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1216 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1217 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1218 if (ret) 1219 return ret; 1220 } 1221 1222 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1223 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1224 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1225 /* 1226 * When peer becomes associated, init rate control as 1227 * well. Some drivers require rate control initialized 1228 * before drv_sta_state() is called. 1229 */ 1230 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1231 rate_control_rate_init(sta); 1232 1233 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1234 if (ret) 1235 return ret; 1236 } 1237 1238 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1239 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1240 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1241 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1242 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1243 else 1244 ret = 0; 1245 if (ret) 1246 return ret; 1247 } 1248 1249 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1250 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1251 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1252 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1253 if (ret) 1254 return ret; 1255 } 1256 1257 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1258 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1259 test_sta_flag(sta, WLAN_STA_AUTH)) { 1260 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1261 if (ret) 1262 return ret; 1263 } 1264 1265 return 0; 1266 } 1267 1268 static void sta_apply_mesh_params(struct ieee80211_local *local, 1269 struct sta_info *sta, 1270 struct station_parameters *params) 1271 { 1272 #ifdef CONFIG_MAC80211_MESH 1273 struct ieee80211_sub_if_data *sdata = sta->sdata; 1274 u32 changed = 0; 1275 1276 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1277 switch (params->plink_state) { 1278 case NL80211_PLINK_ESTAB: 1279 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1280 changed = mesh_plink_inc_estab_count(sdata); 1281 sta->mesh->plink_state = params->plink_state; 1282 sta->mesh->aid = params->peer_aid; 1283 1284 ieee80211_mps_sta_status_update(sta); 1285 changed |= ieee80211_mps_set_sta_local_pm(sta, 1286 sdata->u.mesh.mshcfg.power_mode); 1287 1288 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1289 /* init at low value */ 1290 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1291 1292 break; 1293 case NL80211_PLINK_LISTEN: 1294 case NL80211_PLINK_BLOCKED: 1295 case NL80211_PLINK_OPN_SNT: 1296 case NL80211_PLINK_OPN_RCVD: 1297 case NL80211_PLINK_CNF_RCVD: 1298 case NL80211_PLINK_HOLDING: 1299 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1300 changed = mesh_plink_dec_estab_count(sdata); 1301 sta->mesh->plink_state = params->plink_state; 1302 1303 ieee80211_mps_sta_status_update(sta); 1304 changed |= ieee80211_mps_set_sta_local_pm(sta, 1305 NL80211_MESH_POWER_UNKNOWN); 1306 break; 1307 default: 1308 /* nothing */ 1309 break; 1310 } 1311 } 1312 1313 switch (params->plink_action) { 1314 case NL80211_PLINK_ACTION_NO_ACTION: 1315 /* nothing */ 1316 break; 1317 case NL80211_PLINK_ACTION_OPEN: 1318 changed |= mesh_plink_open(sta); 1319 break; 1320 case NL80211_PLINK_ACTION_BLOCK: 1321 changed |= mesh_plink_block(sta); 1322 break; 1323 } 1324 1325 if (params->local_pm) 1326 changed |= ieee80211_mps_set_sta_local_pm(sta, 1327 params->local_pm); 1328 1329 ieee80211_mbss_info_change_notify(sdata, changed); 1330 #endif 1331 } 1332 1333 static int sta_apply_parameters(struct ieee80211_local *local, 1334 struct sta_info *sta, 1335 struct station_parameters *params) 1336 { 1337 int ret = 0; 1338 struct ieee80211_supported_band *sband; 1339 struct ieee80211_sub_if_data *sdata = sta->sdata; 1340 u32 mask, set; 1341 1342 sband = ieee80211_get_sband(sdata); 1343 if (!sband) 1344 return -EINVAL; 1345 1346 mask = params->sta_flags_mask; 1347 set = params->sta_flags_set; 1348 1349 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1350 /* 1351 * In mesh mode, ASSOCIATED isn't part of the nl80211 1352 * API but must follow AUTHENTICATED for driver state. 1353 */ 1354 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1355 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1356 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1357 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1358 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1359 /* 1360 * TDLS -- everything follows authorized, but 1361 * only becoming authorized is possible, not 1362 * going back 1363 */ 1364 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1365 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1366 BIT(NL80211_STA_FLAG_ASSOCIATED); 1367 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1368 BIT(NL80211_STA_FLAG_ASSOCIATED); 1369 } 1370 } 1371 1372 if (mask & BIT(NL80211_STA_FLAG_WME) && 1373 local->hw.queues >= IEEE80211_NUM_ACS) 1374 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1375 1376 /* auth flags will be set later for TDLS, 1377 * and for unassociated stations that move to assocaited */ 1378 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1379 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1380 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1381 ret = sta_apply_auth_flags(local, sta, mask, set); 1382 if (ret) 1383 return ret; 1384 } 1385 1386 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1387 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1388 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1389 else 1390 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1391 } 1392 1393 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1394 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1395 if (set & BIT(NL80211_STA_FLAG_MFP)) 1396 set_sta_flag(sta, WLAN_STA_MFP); 1397 else 1398 clear_sta_flag(sta, WLAN_STA_MFP); 1399 } 1400 1401 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1402 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1403 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1404 else 1405 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1406 } 1407 1408 /* mark TDLS channel switch support, if the AP allows it */ 1409 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1410 !sdata->u.mgd.tdls_chan_switch_prohibited && 1411 params->ext_capab_len >= 4 && 1412 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1413 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1414 1415 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1416 !sdata->u.mgd.tdls_wider_bw_prohibited && 1417 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1418 params->ext_capab_len >= 8 && 1419 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1420 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1421 1422 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1423 sta->sta.uapsd_queues = params->uapsd_queues; 1424 sta->sta.max_sp = params->max_sp; 1425 } 1426 1427 /* The sender might not have sent the last bit, consider it to be 0 */ 1428 if (params->ext_capab_len >= 8) { 1429 u8 val = (params->ext_capab[7] & 1430 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1431 1432 /* we did get all the bits, take the MSB as well */ 1433 if (params->ext_capab_len >= 9) { 1434 u8 val_msb = params->ext_capab[8] & 1435 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1436 val_msb <<= 1; 1437 val |= val_msb; 1438 } 1439 1440 switch (val) { 1441 case 1: 1442 sta->sta.max_amsdu_subframes = 32; 1443 break; 1444 case 2: 1445 sta->sta.max_amsdu_subframes = 16; 1446 break; 1447 case 3: 1448 sta->sta.max_amsdu_subframes = 8; 1449 break; 1450 default: 1451 sta->sta.max_amsdu_subframes = 0; 1452 } 1453 } 1454 1455 /* 1456 * cfg80211 validates this (1-2007) and allows setting the AID 1457 * only when creating a new station entry 1458 */ 1459 if (params->aid) 1460 sta->sta.aid = params->aid; 1461 1462 /* 1463 * Some of the following updates would be racy if called on an 1464 * existing station, via ieee80211_change_station(). However, 1465 * all such changes are rejected by cfg80211 except for updates 1466 * changing the supported rates on an existing but not yet used 1467 * TDLS peer. 1468 */ 1469 1470 if (params->listen_interval >= 0) 1471 sta->listen_interval = params->listen_interval; 1472 1473 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) { 1474 sta->sta.txpwr.type = params->txpwr.type; 1475 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1476 sta->sta.txpwr.power = params->txpwr.power; 1477 ret = drv_sta_set_txpwr(local, sdata, sta); 1478 if (ret) 1479 return ret; 1480 } 1481 1482 if (params->supported_rates && params->supported_rates_len) { 1483 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1484 sband, params->supported_rates, 1485 params->supported_rates_len, 1486 &sta->sta.supp_rates[sband->band]); 1487 } 1488 1489 if (params->ht_capa) 1490 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1491 params->ht_capa, sta); 1492 1493 /* VHT can override some HT caps such as the A-MSDU max length */ 1494 if (params->vht_capa) 1495 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1496 params->vht_capa, sta); 1497 1498 if (params->he_capa) 1499 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1500 (void *)params->he_capa, 1501 params->he_capa_len, sta); 1502 1503 if (params->opmode_notif_used) { 1504 /* returned value is only needed for rc update, but the 1505 * rc isn't initialized here yet, so ignore it 1506 */ 1507 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1508 sband->band); 1509 } 1510 1511 if (params->support_p2p_ps >= 0) 1512 sta->sta.support_p2p_ps = params->support_p2p_ps; 1513 1514 if (ieee80211_vif_is_mesh(&sdata->vif)) 1515 sta_apply_mesh_params(local, sta, params); 1516 1517 if (params->airtime_weight) 1518 sta->airtime_weight = params->airtime_weight; 1519 1520 /* set the STA state after all sta info from usermode has been set */ 1521 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1522 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1523 ret = sta_apply_auth_flags(local, sta, mask, set); 1524 if (ret) 1525 return ret; 1526 } 1527 1528 return 0; 1529 } 1530 1531 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1532 const u8 *mac, 1533 struct station_parameters *params) 1534 { 1535 struct ieee80211_local *local = wiphy_priv(wiphy); 1536 struct sta_info *sta; 1537 struct ieee80211_sub_if_data *sdata; 1538 int err; 1539 1540 if (params->vlan) { 1541 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1542 1543 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1544 sdata->vif.type != NL80211_IFTYPE_AP) 1545 return -EINVAL; 1546 } else 1547 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1548 1549 if (ether_addr_equal(mac, sdata->vif.addr)) 1550 return -EINVAL; 1551 1552 if (!is_valid_ether_addr(mac)) 1553 return -EINVAL; 1554 1555 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 1556 sdata->vif.type == NL80211_IFTYPE_STATION && 1557 !sdata->u.mgd.associated) 1558 return -EINVAL; 1559 1560 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1561 if (!sta) 1562 return -ENOMEM; 1563 1564 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1565 sta->sta.tdls = true; 1566 1567 err = sta_apply_parameters(local, sta, params); 1568 if (err) { 1569 sta_info_free(local, sta); 1570 return err; 1571 } 1572 1573 /* 1574 * for TDLS and for unassociated station, rate control should be 1575 * initialized only when rates are known and station is marked 1576 * authorized/associated 1577 */ 1578 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1579 test_sta_flag(sta, WLAN_STA_ASSOC)) 1580 rate_control_rate_init(sta); 1581 1582 err = sta_info_insert_rcu(sta); 1583 if (err) { 1584 rcu_read_unlock(); 1585 return err; 1586 } 1587 1588 rcu_read_unlock(); 1589 1590 return 0; 1591 } 1592 1593 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1594 struct station_del_parameters *params) 1595 { 1596 struct ieee80211_sub_if_data *sdata; 1597 1598 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1599 1600 if (params->mac) 1601 return sta_info_destroy_addr_bss(sdata, params->mac); 1602 1603 sta_info_flush(sdata); 1604 return 0; 1605 } 1606 1607 static int ieee80211_change_station(struct wiphy *wiphy, 1608 struct net_device *dev, const u8 *mac, 1609 struct station_parameters *params) 1610 { 1611 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1612 struct ieee80211_local *local = wiphy_priv(wiphy); 1613 struct sta_info *sta; 1614 struct ieee80211_sub_if_data *vlansdata; 1615 enum cfg80211_station_type statype; 1616 int err; 1617 1618 mutex_lock(&local->sta_mtx); 1619 1620 sta = sta_info_get_bss(sdata, mac); 1621 if (!sta) { 1622 err = -ENOENT; 1623 goto out_err; 1624 } 1625 1626 switch (sdata->vif.type) { 1627 case NL80211_IFTYPE_MESH_POINT: 1628 if (sdata->u.mesh.user_mpm) 1629 statype = CFG80211_STA_MESH_PEER_USER; 1630 else 1631 statype = CFG80211_STA_MESH_PEER_KERNEL; 1632 break; 1633 case NL80211_IFTYPE_ADHOC: 1634 statype = CFG80211_STA_IBSS; 1635 break; 1636 case NL80211_IFTYPE_STATION: 1637 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1638 statype = CFG80211_STA_AP_STA; 1639 break; 1640 } 1641 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1642 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1643 else 1644 statype = CFG80211_STA_TDLS_PEER_SETUP; 1645 break; 1646 case NL80211_IFTYPE_AP: 1647 case NL80211_IFTYPE_AP_VLAN: 1648 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1649 statype = CFG80211_STA_AP_CLIENT; 1650 else 1651 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1652 break; 1653 default: 1654 err = -EOPNOTSUPP; 1655 goto out_err; 1656 } 1657 1658 err = cfg80211_check_station_change(wiphy, params, statype); 1659 if (err) 1660 goto out_err; 1661 1662 if (params->vlan && params->vlan != sta->sdata->dev) { 1663 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1664 1665 if (params->vlan->ieee80211_ptr->use_4addr) { 1666 if (vlansdata->u.vlan.sta) { 1667 err = -EBUSY; 1668 goto out_err; 1669 } 1670 1671 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1672 __ieee80211_check_fast_rx_iface(vlansdata); 1673 } 1674 1675 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1676 sta->sdata->u.vlan.sta) 1677 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1678 1679 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1680 ieee80211_vif_dec_num_mcast(sta->sdata); 1681 1682 sta->sdata = vlansdata; 1683 ieee80211_check_fast_xmit(sta); 1684 1685 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 1686 ieee80211_vif_inc_num_mcast(sta->sdata); 1687 cfg80211_send_layer2_update(sta->sdata->dev, 1688 sta->sta.addr); 1689 } 1690 } 1691 1692 err = sta_apply_parameters(local, sta, params); 1693 if (err) 1694 goto out_err; 1695 1696 mutex_unlock(&local->sta_mtx); 1697 1698 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1699 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1700 ieee80211_recalc_ps(local); 1701 ieee80211_recalc_ps_vif(sdata); 1702 } 1703 1704 return 0; 1705 out_err: 1706 mutex_unlock(&local->sta_mtx); 1707 return err; 1708 } 1709 1710 #ifdef CONFIG_MAC80211_MESH 1711 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1712 const u8 *dst, const u8 *next_hop) 1713 { 1714 struct ieee80211_sub_if_data *sdata; 1715 struct mesh_path *mpath; 1716 struct sta_info *sta; 1717 1718 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1719 1720 rcu_read_lock(); 1721 sta = sta_info_get(sdata, next_hop); 1722 if (!sta) { 1723 rcu_read_unlock(); 1724 return -ENOENT; 1725 } 1726 1727 mpath = mesh_path_add(sdata, dst); 1728 if (IS_ERR(mpath)) { 1729 rcu_read_unlock(); 1730 return PTR_ERR(mpath); 1731 } 1732 1733 mesh_path_fix_nexthop(mpath, sta); 1734 1735 rcu_read_unlock(); 1736 return 0; 1737 } 1738 1739 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1740 const u8 *dst) 1741 { 1742 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1743 1744 if (dst) 1745 return mesh_path_del(sdata, dst); 1746 1747 mesh_path_flush_by_iface(sdata); 1748 return 0; 1749 } 1750 1751 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1752 const u8 *dst, const u8 *next_hop) 1753 { 1754 struct ieee80211_sub_if_data *sdata; 1755 struct mesh_path *mpath; 1756 struct sta_info *sta; 1757 1758 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1759 1760 rcu_read_lock(); 1761 1762 sta = sta_info_get(sdata, next_hop); 1763 if (!sta) { 1764 rcu_read_unlock(); 1765 return -ENOENT; 1766 } 1767 1768 mpath = mesh_path_lookup(sdata, dst); 1769 if (!mpath) { 1770 rcu_read_unlock(); 1771 return -ENOENT; 1772 } 1773 1774 mesh_path_fix_nexthop(mpath, sta); 1775 1776 rcu_read_unlock(); 1777 return 0; 1778 } 1779 1780 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1781 struct mpath_info *pinfo) 1782 { 1783 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1784 1785 if (next_hop_sta) 1786 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1787 else 1788 eth_zero_addr(next_hop); 1789 1790 memset(pinfo, 0, sizeof(*pinfo)); 1791 1792 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1793 1794 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1795 MPATH_INFO_SN | 1796 MPATH_INFO_METRIC | 1797 MPATH_INFO_EXPTIME | 1798 MPATH_INFO_DISCOVERY_TIMEOUT | 1799 MPATH_INFO_DISCOVERY_RETRIES | 1800 MPATH_INFO_FLAGS | 1801 MPATH_INFO_HOP_COUNT | 1802 MPATH_INFO_PATH_CHANGE; 1803 1804 pinfo->frame_qlen = mpath->frame_queue.qlen; 1805 pinfo->sn = mpath->sn; 1806 pinfo->metric = mpath->metric; 1807 if (time_before(jiffies, mpath->exp_time)) 1808 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1809 pinfo->discovery_timeout = 1810 jiffies_to_msecs(mpath->discovery_timeout); 1811 pinfo->discovery_retries = mpath->discovery_retries; 1812 if (mpath->flags & MESH_PATH_ACTIVE) 1813 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1814 if (mpath->flags & MESH_PATH_RESOLVING) 1815 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1816 if (mpath->flags & MESH_PATH_SN_VALID) 1817 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1818 if (mpath->flags & MESH_PATH_FIXED) 1819 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1820 if (mpath->flags & MESH_PATH_RESOLVED) 1821 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1822 pinfo->hop_count = mpath->hop_count; 1823 pinfo->path_change_count = mpath->path_change_count; 1824 } 1825 1826 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1827 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1828 1829 { 1830 struct ieee80211_sub_if_data *sdata; 1831 struct mesh_path *mpath; 1832 1833 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1834 1835 rcu_read_lock(); 1836 mpath = mesh_path_lookup(sdata, dst); 1837 if (!mpath) { 1838 rcu_read_unlock(); 1839 return -ENOENT; 1840 } 1841 memcpy(dst, mpath->dst, ETH_ALEN); 1842 mpath_set_pinfo(mpath, next_hop, pinfo); 1843 rcu_read_unlock(); 1844 return 0; 1845 } 1846 1847 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1848 int idx, u8 *dst, u8 *next_hop, 1849 struct mpath_info *pinfo) 1850 { 1851 struct ieee80211_sub_if_data *sdata; 1852 struct mesh_path *mpath; 1853 1854 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1855 1856 rcu_read_lock(); 1857 mpath = mesh_path_lookup_by_idx(sdata, idx); 1858 if (!mpath) { 1859 rcu_read_unlock(); 1860 return -ENOENT; 1861 } 1862 memcpy(dst, mpath->dst, ETH_ALEN); 1863 mpath_set_pinfo(mpath, next_hop, pinfo); 1864 rcu_read_unlock(); 1865 return 0; 1866 } 1867 1868 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1869 struct mpath_info *pinfo) 1870 { 1871 memset(pinfo, 0, sizeof(*pinfo)); 1872 memcpy(mpp, mpath->mpp, ETH_ALEN); 1873 1874 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1875 } 1876 1877 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1878 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1879 1880 { 1881 struct ieee80211_sub_if_data *sdata; 1882 struct mesh_path *mpath; 1883 1884 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1885 1886 rcu_read_lock(); 1887 mpath = mpp_path_lookup(sdata, dst); 1888 if (!mpath) { 1889 rcu_read_unlock(); 1890 return -ENOENT; 1891 } 1892 memcpy(dst, mpath->dst, ETH_ALEN); 1893 mpp_set_pinfo(mpath, mpp, pinfo); 1894 rcu_read_unlock(); 1895 return 0; 1896 } 1897 1898 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1899 int idx, u8 *dst, u8 *mpp, 1900 struct mpath_info *pinfo) 1901 { 1902 struct ieee80211_sub_if_data *sdata; 1903 struct mesh_path *mpath; 1904 1905 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1906 1907 rcu_read_lock(); 1908 mpath = mpp_path_lookup_by_idx(sdata, idx); 1909 if (!mpath) { 1910 rcu_read_unlock(); 1911 return -ENOENT; 1912 } 1913 memcpy(dst, mpath->dst, ETH_ALEN); 1914 mpp_set_pinfo(mpath, mpp, pinfo); 1915 rcu_read_unlock(); 1916 return 0; 1917 } 1918 1919 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1920 struct net_device *dev, 1921 struct mesh_config *conf) 1922 { 1923 struct ieee80211_sub_if_data *sdata; 1924 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1925 1926 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1927 return 0; 1928 } 1929 1930 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1931 { 1932 return (mask >> (parm-1)) & 0x1; 1933 } 1934 1935 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1936 const struct mesh_setup *setup) 1937 { 1938 u8 *new_ie; 1939 const u8 *old_ie; 1940 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1941 struct ieee80211_sub_if_data, u.mesh); 1942 1943 /* allocate information elements */ 1944 new_ie = NULL; 1945 old_ie = ifmsh->ie; 1946 1947 if (setup->ie_len) { 1948 new_ie = kmemdup(setup->ie, setup->ie_len, 1949 GFP_KERNEL); 1950 if (!new_ie) 1951 return -ENOMEM; 1952 } 1953 ifmsh->ie_len = setup->ie_len; 1954 ifmsh->ie = new_ie; 1955 kfree(old_ie); 1956 1957 /* now copy the rest of the setup parameters */ 1958 ifmsh->mesh_id_len = setup->mesh_id_len; 1959 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1960 ifmsh->mesh_sp_id = setup->sync_method; 1961 ifmsh->mesh_pp_id = setup->path_sel_proto; 1962 ifmsh->mesh_pm_id = setup->path_metric; 1963 ifmsh->user_mpm = setup->user_mpm; 1964 ifmsh->mesh_auth_id = setup->auth_id; 1965 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1966 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 1967 if (setup->is_authenticated) 1968 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1969 if (setup->is_secure) 1970 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1971 1972 /* mcast rate setting in Mesh Node */ 1973 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1974 sizeof(setup->mcast_rate)); 1975 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1976 1977 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1978 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1979 1980 return 0; 1981 } 1982 1983 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1984 struct net_device *dev, u32 mask, 1985 const struct mesh_config *nconf) 1986 { 1987 struct mesh_config *conf; 1988 struct ieee80211_sub_if_data *sdata; 1989 struct ieee80211_if_mesh *ifmsh; 1990 1991 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1992 ifmsh = &sdata->u.mesh; 1993 1994 /* Set the config options which we are interested in setting */ 1995 conf = &(sdata->u.mesh.mshcfg); 1996 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 1997 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 1998 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 1999 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2000 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2001 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2002 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2003 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2004 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2005 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2006 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2007 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2008 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2009 conf->element_ttl = nconf->element_ttl; 2010 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2011 if (ifmsh->user_mpm) 2012 return -EBUSY; 2013 conf->auto_open_plinks = nconf->auto_open_plinks; 2014 } 2015 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2016 conf->dot11MeshNbrOffsetMaxNeighbor = 2017 nconf->dot11MeshNbrOffsetMaxNeighbor; 2018 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2019 conf->dot11MeshHWMPmaxPREQretries = 2020 nconf->dot11MeshHWMPmaxPREQretries; 2021 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2022 conf->path_refresh_time = nconf->path_refresh_time; 2023 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2024 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2025 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2026 conf->dot11MeshHWMPactivePathTimeout = 2027 nconf->dot11MeshHWMPactivePathTimeout; 2028 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2029 conf->dot11MeshHWMPpreqMinInterval = 2030 nconf->dot11MeshHWMPpreqMinInterval; 2031 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2032 conf->dot11MeshHWMPperrMinInterval = 2033 nconf->dot11MeshHWMPperrMinInterval; 2034 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2035 mask)) 2036 conf->dot11MeshHWMPnetDiameterTraversalTime = 2037 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2038 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2039 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2040 ieee80211_mesh_root_setup(ifmsh); 2041 } 2042 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2043 /* our current gate announcement implementation rides on root 2044 * announcements, so require this ifmsh to also be a root node 2045 * */ 2046 if (nconf->dot11MeshGateAnnouncementProtocol && 2047 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2048 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2049 ieee80211_mesh_root_setup(ifmsh); 2050 } 2051 conf->dot11MeshGateAnnouncementProtocol = 2052 nconf->dot11MeshGateAnnouncementProtocol; 2053 } 2054 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2055 conf->dot11MeshHWMPRannInterval = 2056 nconf->dot11MeshHWMPRannInterval; 2057 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2058 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2059 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2060 /* our RSSI threshold implementation is supported only for 2061 * devices that report signal in dBm. 2062 */ 2063 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2064 return -ENOTSUPP; 2065 conf->rssi_threshold = nconf->rssi_threshold; 2066 } 2067 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2068 conf->ht_opmode = nconf->ht_opmode; 2069 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2070 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2071 } 2072 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2073 conf->dot11MeshHWMPactivePathToRootTimeout = 2074 nconf->dot11MeshHWMPactivePathToRootTimeout; 2075 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2076 conf->dot11MeshHWMProotInterval = 2077 nconf->dot11MeshHWMProotInterval; 2078 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2079 conf->dot11MeshHWMPconfirmationInterval = 2080 nconf->dot11MeshHWMPconfirmationInterval; 2081 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2082 conf->power_mode = nconf->power_mode; 2083 ieee80211_mps_local_status_update(sdata); 2084 } 2085 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2086 conf->dot11MeshAwakeWindowDuration = 2087 nconf->dot11MeshAwakeWindowDuration; 2088 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2089 conf->plink_timeout = nconf->plink_timeout; 2090 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2091 conf->dot11MeshConnectedToMeshGate = 2092 nconf->dot11MeshConnectedToMeshGate; 2093 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2094 return 0; 2095 } 2096 2097 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2098 const struct mesh_config *conf, 2099 const struct mesh_setup *setup) 2100 { 2101 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2102 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2103 int err; 2104 2105 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2106 err = copy_mesh_setup(ifmsh, setup); 2107 if (err) 2108 return err; 2109 2110 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2111 2112 /* can mesh use other SMPS modes? */ 2113 sdata->smps_mode = IEEE80211_SMPS_OFF; 2114 sdata->needed_rx_chains = sdata->local->rx_chains; 2115 2116 mutex_lock(&sdata->local->mtx); 2117 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2118 IEEE80211_CHANCTX_SHARED); 2119 mutex_unlock(&sdata->local->mtx); 2120 if (err) 2121 return err; 2122 2123 return ieee80211_start_mesh(sdata); 2124 } 2125 2126 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2127 { 2128 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2129 2130 ieee80211_stop_mesh(sdata); 2131 mutex_lock(&sdata->local->mtx); 2132 ieee80211_vif_release_channel(sdata); 2133 mutex_unlock(&sdata->local->mtx); 2134 2135 return 0; 2136 } 2137 #endif 2138 2139 static int ieee80211_change_bss(struct wiphy *wiphy, 2140 struct net_device *dev, 2141 struct bss_parameters *params) 2142 { 2143 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2144 struct ieee80211_supported_band *sband; 2145 u32 changed = 0; 2146 2147 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2148 return -ENOENT; 2149 2150 sband = ieee80211_get_sband(sdata); 2151 if (!sband) 2152 return -EINVAL; 2153 2154 if (params->use_cts_prot >= 0) { 2155 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2156 changed |= BSS_CHANGED_ERP_CTS_PROT; 2157 } 2158 if (params->use_short_preamble >= 0) { 2159 sdata->vif.bss_conf.use_short_preamble = 2160 params->use_short_preamble; 2161 changed |= BSS_CHANGED_ERP_PREAMBLE; 2162 } 2163 2164 if (!sdata->vif.bss_conf.use_short_slot && 2165 sband->band == NL80211_BAND_5GHZ) { 2166 sdata->vif.bss_conf.use_short_slot = true; 2167 changed |= BSS_CHANGED_ERP_SLOT; 2168 } 2169 2170 if (params->use_short_slot_time >= 0) { 2171 sdata->vif.bss_conf.use_short_slot = 2172 params->use_short_slot_time; 2173 changed |= BSS_CHANGED_ERP_SLOT; 2174 } 2175 2176 if (params->basic_rates) { 2177 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2178 wiphy->bands[sband->band], 2179 params->basic_rates, 2180 params->basic_rates_len, 2181 &sdata->vif.bss_conf.basic_rates); 2182 changed |= BSS_CHANGED_BASIC_RATES; 2183 ieee80211_check_rate_mask(sdata); 2184 } 2185 2186 if (params->ap_isolate >= 0) { 2187 if (params->ap_isolate) 2188 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2189 else 2190 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2191 ieee80211_check_fast_rx_iface(sdata); 2192 } 2193 2194 if (params->ht_opmode >= 0) { 2195 sdata->vif.bss_conf.ht_operation_mode = 2196 (u16) params->ht_opmode; 2197 changed |= BSS_CHANGED_HT; 2198 } 2199 2200 if (params->p2p_ctwindow >= 0) { 2201 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2202 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2203 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2204 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2205 changed |= BSS_CHANGED_P2P_PS; 2206 } 2207 2208 if (params->p2p_opp_ps > 0) { 2209 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2210 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2211 changed |= BSS_CHANGED_P2P_PS; 2212 } else if (params->p2p_opp_ps == 0) { 2213 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2214 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2215 changed |= BSS_CHANGED_P2P_PS; 2216 } 2217 2218 ieee80211_bss_info_change_notify(sdata, changed); 2219 2220 return 0; 2221 } 2222 2223 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2224 struct net_device *dev, 2225 struct ieee80211_txq_params *params) 2226 { 2227 struct ieee80211_local *local = wiphy_priv(wiphy); 2228 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2229 struct ieee80211_tx_queue_params p; 2230 2231 if (!local->ops->conf_tx) 2232 return -EOPNOTSUPP; 2233 2234 if (local->hw.queues < IEEE80211_NUM_ACS) 2235 return -EOPNOTSUPP; 2236 2237 memset(&p, 0, sizeof(p)); 2238 p.aifs = params->aifs; 2239 p.cw_max = params->cwmax; 2240 p.cw_min = params->cwmin; 2241 p.txop = params->txop; 2242 2243 /* 2244 * Setting tx queue params disables u-apsd because it's only 2245 * called in master mode. 2246 */ 2247 p.uapsd = false; 2248 2249 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2250 2251 sdata->tx_conf[params->ac] = p; 2252 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2253 wiphy_debug(local->hw.wiphy, 2254 "failed to set TX queue parameters for AC %d\n", 2255 params->ac); 2256 return -EINVAL; 2257 } 2258 2259 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2260 2261 return 0; 2262 } 2263 2264 #ifdef CONFIG_PM 2265 static int ieee80211_suspend(struct wiphy *wiphy, 2266 struct cfg80211_wowlan *wowlan) 2267 { 2268 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2269 } 2270 2271 static int ieee80211_resume(struct wiphy *wiphy) 2272 { 2273 return __ieee80211_resume(wiphy_priv(wiphy)); 2274 } 2275 #else 2276 #define ieee80211_suspend NULL 2277 #define ieee80211_resume NULL 2278 #endif 2279 2280 static int ieee80211_scan(struct wiphy *wiphy, 2281 struct cfg80211_scan_request *req) 2282 { 2283 struct ieee80211_sub_if_data *sdata; 2284 2285 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2286 2287 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2288 case NL80211_IFTYPE_STATION: 2289 case NL80211_IFTYPE_ADHOC: 2290 case NL80211_IFTYPE_MESH_POINT: 2291 case NL80211_IFTYPE_P2P_CLIENT: 2292 case NL80211_IFTYPE_P2P_DEVICE: 2293 break; 2294 case NL80211_IFTYPE_P2P_GO: 2295 if (sdata->local->ops->hw_scan) 2296 break; 2297 /* 2298 * FIXME: implement NoA while scanning in software, 2299 * for now fall through to allow scanning only when 2300 * beaconing hasn't been configured yet 2301 */ 2302 /* fall through */ 2303 case NL80211_IFTYPE_AP: 2304 /* 2305 * If the scan has been forced (and the driver supports 2306 * forcing), don't care about being beaconing already. 2307 * This will create problems to the attached stations (e.g. all 2308 * the frames sent while scanning on other channel will be 2309 * lost) 2310 */ 2311 if (sdata->u.ap.beacon && 2312 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2313 !(req->flags & NL80211_SCAN_FLAG_AP))) 2314 return -EOPNOTSUPP; 2315 break; 2316 case NL80211_IFTYPE_NAN: 2317 default: 2318 return -EOPNOTSUPP; 2319 } 2320 2321 return ieee80211_request_scan(sdata, req); 2322 } 2323 2324 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2325 { 2326 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2327 } 2328 2329 static int 2330 ieee80211_sched_scan_start(struct wiphy *wiphy, 2331 struct net_device *dev, 2332 struct cfg80211_sched_scan_request *req) 2333 { 2334 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2335 2336 if (!sdata->local->ops->sched_scan_start) 2337 return -EOPNOTSUPP; 2338 2339 return ieee80211_request_sched_scan_start(sdata, req); 2340 } 2341 2342 static int 2343 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2344 u64 reqid) 2345 { 2346 struct ieee80211_local *local = wiphy_priv(wiphy); 2347 2348 if (!local->ops->sched_scan_stop) 2349 return -EOPNOTSUPP; 2350 2351 return ieee80211_request_sched_scan_stop(local); 2352 } 2353 2354 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2355 struct cfg80211_auth_request *req) 2356 { 2357 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2358 } 2359 2360 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2361 struct cfg80211_assoc_request *req) 2362 { 2363 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2364 } 2365 2366 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2367 struct cfg80211_deauth_request *req) 2368 { 2369 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2370 } 2371 2372 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2373 struct cfg80211_disassoc_request *req) 2374 { 2375 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2376 } 2377 2378 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2379 struct cfg80211_ibss_params *params) 2380 { 2381 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2382 } 2383 2384 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2385 { 2386 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2387 } 2388 2389 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2390 struct ocb_setup *setup) 2391 { 2392 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2393 } 2394 2395 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2396 { 2397 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2398 } 2399 2400 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2401 int rate[NUM_NL80211_BANDS]) 2402 { 2403 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2404 2405 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2406 sizeof(int) * NUM_NL80211_BANDS); 2407 2408 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2409 2410 return 0; 2411 } 2412 2413 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2414 { 2415 struct ieee80211_local *local = wiphy_priv(wiphy); 2416 int err; 2417 2418 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2419 ieee80211_check_fast_xmit_all(local); 2420 2421 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2422 2423 if (err) { 2424 ieee80211_check_fast_xmit_all(local); 2425 return err; 2426 } 2427 } 2428 2429 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2430 (changed & WIPHY_PARAM_DYN_ACK)) { 2431 s16 coverage_class; 2432 2433 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2434 wiphy->coverage_class : -1; 2435 err = drv_set_coverage_class(local, coverage_class); 2436 2437 if (err) 2438 return err; 2439 } 2440 2441 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2442 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2443 2444 if (err) 2445 return err; 2446 } 2447 2448 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2449 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2450 return -EINVAL; 2451 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2452 } 2453 if (changed & WIPHY_PARAM_RETRY_LONG) { 2454 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2455 return -EINVAL; 2456 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2457 } 2458 if (changed & 2459 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2460 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2461 2462 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2463 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2464 WIPHY_PARAM_TXQ_QUANTUM)) 2465 ieee80211_txq_set_params(local); 2466 2467 return 0; 2468 } 2469 2470 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2471 struct wireless_dev *wdev, 2472 enum nl80211_tx_power_setting type, int mbm) 2473 { 2474 struct ieee80211_local *local = wiphy_priv(wiphy); 2475 struct ieee80211_sub_if_data *sdata; 2476 enum nl80211_tx_power_setting txp_type = type; 2477 bool update_txp_type = false; 2478 bool has_monitor = false; 2479 2480 if (wdev) { 2481 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2482 2483 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2484 sdata = rtnl_dereference(local->monitor_sdata); 2485 if (!sdata) 2486 return -EOPNOTSUPP; 2487 } 2488 2489 switch (type) { 2490 case NL80211_TX_POWER_AUTOMATIC: 2491 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2492 txp_type = NL80211_TX_POWER_LIMITED; 2493 break; 2494 case NL80211_TX_POWER_LIMITED: 2495 case NL80211_TX_POWER_FIXED: 2496 if (mbm < 0 || (mbm % 100)) 2497 return -EOPNOTSUPP; 2498 sdata->user_power_level = MBM_TO_DBM(mbm); 2499 break; 2500 } 2501 2502 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2503 update_txp_type = true; 2504 sdata->vif.bss_conf.txpower_type = txp_type; 2505 } 2506 2507 ieee80211_recalc_txpower(sdata, update_txp_type); 2508 2509 return 0; 2510 } 2511 2512 switch (type) { 2513 case NL80211_TX_POWER_AUTOMATIC: 2514 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2515 txp_type = NL80211_TX_POWER_LIMITED; 2516 break; 2517 case NL80211_TX_POWER_LIMITED: 2518 case NL80211_TX_POWER_FIXED: 2519 if (mbm < 0 || (mbm % 100)) 2520 return -EOPNOTSUPP; 2521 local->user_power_level = MBM_TO_DBM(mbm); 2522 break; 2523 } 2524 2525 mutex_lock(&local->iflist_mtx); 2526 list_for_each_entry(sdata, &local->interfaces, list) { 2527 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2528 has_monitor = true; 2529 continue; 2530 } 2531 sdata->user_power_level = local->user_power_level; 2532 if (txp_type != sdata->vif.bss_conf.txpower_type) 2533 update_txp_type = true; 2534 sdata->vif.bss_conf.txpower_type = txp_type; 2535 } 2536 list_for_each_entry(sdata, &local->interfaces, list) { 2537 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2538 continue; 2539 ieee80211_recalc_txpower(sdata, update_txp_type); 2540 } 2541 mutex_unlock(&local->iflist_mtx); 2542 2543 if (has_monitor) { 2544 sdata = rtnl_dereference(local->monitor_sdata); 2545 if (sdata) { 2546 sdata->user_power_level = local->user_power_level; 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 ieee80211_recalc_txpower(sdata, update_txp_type); 2552 } 2553 } 2554 2555 return 0; 2556 } 2557 2558 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2559 struct wireless_dev *wdev, 2560 int *dbm) 2561 { 2562 struct ieee80211_local *local = wiphy_priv(wiphy); 2563 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2564 2565 if (local->ops->get_txpower) 2566 return drv_get_txpower(local, sdata, dbm); 2567 2568 if (!local->use_chanctx) 2569 *dbm = local->hw.conf.power_level; 2570 else 2571 *dbm = sdata->vif.bss_conf.txpower; 2572 2573 return 0; 2574 } 2575 2576 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2577 const u8 *addr) 2578 { 2579 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2580 2581 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2582 2583 return 0; 2584 } 2585 2586 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2587 { 2588 struct ieee80211_local *local = wiphy_priv(wiphy); 2589 2590 drv_rfkill_poll(local); 2591 } 2592 2593 #ifdef CONFIG_NL80211_TESTMODE 2594 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2595 struct wireless_dev *wdev, 2596 void *data, int len) 2597 { 2598 struct ieee80211_local *local = wiphy_priv(wiphy); 2599 struct ieee80211_vif *vif = NULL; 2600 2601 if (!local->ops->testmode_cmd) 2602 return -EOPNOTSUPP; 2603 2604 if (wdev) { 2605 struct ieee80211_sub_if_data *sdata; 2606 2607 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2608 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2609 vif = &sdata->vif; 2610 } 2611 2612 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2613 } 2614 2615 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2616 struct sk_buff *skb, 2617 struct netlink_callback *cb, 2618 void *data, int len) 2619 { 2620 struct ieee80211_local *local = wiphy_priv(wiphy); 2621 2622 if (!local->ops->testmode_dump) 2623 return -EOPNOTSUPP; 2624 2625 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2626 } 2627 #endif 2628 2629 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2630 enum ieee80211_smps_mode smps_mode) 2631 { 2632 const u8 *ap; 2633 enum ieee80211_smps_mode old_req; 2634 int err; 2635 struct sta_info *sta; 2636 bool tdls_peer_found = false; 2637 2638 lockdep_assert_held(&sdata->wdev.mtx); 2639 2640 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2641 return -EINVAL; 2642 2643 old_req = sdata->u.mgd.req_smps; 2644 sdata->u.mgd.req_smps = smps_mode; 2645 2646 if (old_req == smps_mode && 2647 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2648 return 0; 2649 2650 /* 2651 * If not associated, or current association is not an HT 2652 * association, there's no need to do anything, just store 2653 * the new value until we associate. 2654 */ 2655 if (!sdata->u.mgd.associated || 2656 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2657 return 0; 2658 2659 ap = sdata->u.mgd.associated->bssid; 2660 2661 rcu_read_lock(); 2662 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2663 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2664 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2665 continue; 2666 2667 tdls_peer_found = true; 2668 break; 2669 } 2670 rcu_read_unlock(); 2671 2672 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2673 if (tdls_peer_found || !sdata->u.mgd.powersave) 2674 smps_mode = IEEE80211_SMPS_OFF; 2675 else 2676 smps_mode = IEEE80211_SMPS_DYNAMIC; 2677 } 2678 2679 /* send SM PS frame to AP */ 2680 err = ieee80211_send_smps_action(sdata, smps_mode, 2681 ap, ap); 2682 if (err) 2683 sdata->u.mgd.req_smps = old_req; 2684 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2685 ieee80211_teardown_tdls_peers(sdata); 2686 2687 return err; 2688 } 2689 2690 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2691 bool enabled, int timeout) 2692 { 2693 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2694 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2695 2696 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2697 return -EOPNOTSUPP; 2698 2699 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2700 return -EOPNOTSUPP; 2701 2702 if (enabled == sdata->u.mgd.powersave && 2703 timeout == local->dynamic_ps_forced_timeout) 2704 return 0; 2705 2706 sdata->u.mgd.powersave = enabled; 2707 local->dynamic_ps_forced_timeout = timeout; 2708 2709 /* no change, but if automatic follow powersave */ 2710 sdata_lock(sdata); 2711 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2712 sdata_unlock(sdata); 2713 2714 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2715 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2716 2717 ieee80211_recalc_ps(local); 2718 ieee80211_recalc_ps_vif(sdata); 2719 ieee80211_check_fast_rx_iface(sdata); 2720 2721 return 0; 2722 } 2723 2724 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2725 struct net_device *dev, 2726 s32 rssi_thold, u32 rssi_hyst) 2727 { 2728 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2729 struct ieee80211_vif *vif = &sdata->vif; 2730 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2731 2732 if (rssi_thold == bss_conf->cqm_rssi_thold && 2733 rssi_hyst == bss_conf->cqm_rssi_hyst) 2734 return 0; 2735 2736 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2737 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2738 return -EOPNOTSUPP; 2739 2740 bss_conf->cqm_rssi_thold = rssi_thold; 2741 bss_conf->cqm_rssi_hyst = rssi_hyst; 2742 bss_conf->cqm_rssi_low = 0; 2743 bss_conf->cqm_rssi_high = 0; 2744 sdata->u.mgd.last_cqm_event_signal = 0; 2745 2746 /* tell the driver upon association, unless already associated */ 2747 if (sdata->u.mgd.associated && 2748 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2749 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2750 2751 return 0; 2752 } 2753 2754 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2755 struct net_device *dev, 2756 s32 rssi_low, s32 rssi_high) 2757 { 2758 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2759 struct ieee80211_vif *vif = &sdata->vif; 2760 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2761 2762 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2763 return -EOPNOTSUPP; 2764 2765 bss_conf->cqm_rssi_low = rssi_low; 2766 bss_conf->cqm_rssi_high = rssi_high; 2767 bss_conf->cqm_rssi_thold = 0; 2768 bss_conf->cqm_rssi_hyst = 0; 2769 sdata->u.mgd.last_cqm_event_signal = 0; 2770 2771 /* tell the driver upon association, unless already associated */ 2772 if (sdata->u.mgd.associated && 2773 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2774 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2775 2776 return 0; 2777 } 2778 2779 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2780 struct net_device *dev, 2781 const u8 *addr, 2782 const struct cfg80211_bitrate_mask *mask) 2783 { 2784 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2785 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2786 int i, ret; 2787 2788 if (!ieee80211_sdata_running(sdata)) 2789 return -ENETDOWN; 2790 2791 /* 2792 * If active validate the setting and reject it if it doesn't leave 2793 * at least one basic rate usable, since we really have to be able 2794 * to send something, and if we're an AP we have to be able to do 2795 * so at a basic rate so that all clients can receive it. 2796 */ 2797 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2798 sdata->vif.bss_conf.chandef.chan) { 2799 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2800 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2801 2802 if (!(mask->control[band].legacy & basic_rates)) 2803 return -EINVAL; 2804 } 2805 2806 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2807 ret = drv_set_bitrate_mask(local, sdata, mask); 2808 if (ret) 2809 return ret; 2810 } 2811 2812 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2813 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2814 int j; 2815 2816 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2817 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2818 sizeof(mask->control[i].ht_mcs)); 2819 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2820 mask->control[i].vht_mcs, 2821 sizeof(mask->control[i].vht_mcs)); 2822 2823 sdata->rc_has_mcs_mask[i] = false; 2824 sdata->rc_has_vht_mcs_mask[i] = false; 2825 if (!sband) 2826 continue; 2827 2828 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2829 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2830 sdata->rc_has_mcs_mask[i] = true; 2831 break; 2832 } 2833 } 2834 2835 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2836 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2837 sdata->rc_has_vht_mcs_mask[i] = true; 2838 break; 2839 } 2840 } 2841 } 2842 2843 return 0; 2844 } 2845 2846 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2847 struct net_device *dev, 2848 struct cfg80211_chan_def *chandef, 2849 u32 cac_time_ms) 2850 { 2851 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2852 struct ieee80211_local *local = sdata->local; 2853 int err; 2854 2855 mutex_lock(&local->mtx); 2856 if (!list_empty(&local->roc_list) || local->scanning) { 2857 err = -EBUSY; 2858 goto out_unlock; 2859 } 2860 2861 /* whatever, but channel contexts should not complain about that one */ 2862 sdata->smps_mode = IEEE80211_SMPS_OFF; 2863 sdata->needed_rx_chains = local->rx_chains; 2864 2865 err = ieee80211_vif_use_channel(sdata, chandef, 2866 IEEE80211_CHANCTX_SHARED); 2867 if (err) 2868 goto out_unlock; 2869 2870 ieee80211_queue_delayed_work(&sdata->local->hw, 2871 &sdata->dfs_cac_timer_work, 2872 msecs_to_jiffies(cac_time_ms)); 2873 2874 out_unlock: 2875 mutex_unlock(&local->mtx); 2876 return err; 2877 } 2878 2879 static void ieee80211_end_cac(struct wiphy *wiphy, 2880 struct net_device *dev) 2881 { 2882 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2883 struct ieee80211_local *local = sdata->local; 2884 2885 mutex_lock(&local->mtx); 2886 list_for_each_entry(sdata, &local->interfaces, list) { 2887 /* it might be waiting for the local->mtx, but then 2888 * by the time it gets it, sdata->wdev.cac_started 2889 * will no longer be true 2890 */ 2891 cancel_delayed_work(&sdata->dfs_cac_timer_work); 2892 2893 if (sdata->wdev.cac_started) { 2894 ieee80211_vif_release_channel(sdata); 2895 sdata->wdev.cac_started = false; 2896 } 2897 } 2898 mutex_unlock(&local->mtx); 2899 } 2900 2901 static struct cfg80211_beacon_data * 2902 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2903 { 2904 struct cfg80211_beacon_data *new_beacon; 2905 u8 *pos; 2906 int len; 2907 2908 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2909 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2910 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 2911 2912 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2913 if (!new_beacon) 2914 return NULL; 2915 2916 pos = (u8 *)(new_beacon + 1); 2917 if (beacon->head_len) { 2918 new_beacon->head_len = beacon->head_len; 2919 new_beacon->head = pos; 2920 memcpy(pos, beacon->head, beacon->head_len); 2921 pos += beacon->head_len; 2922 } 2923 if (beacon->tail_len) { 2924 new_beacon->tail_len = beacon->tail_len; 2925 new_beacon->tail = pos; 2926 memcpy(pos, beacon->tail, beacon->tail_len); 2927 pos += beacon->tail_len; 2928 } 2929 if (beacon->beacon_ies_len) { 2930 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2931 new_beacon->beacon_ies = pos; 2932 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2933 pos += beacon->beacon_ies_len; 2934 } 2935 if (beacon->proberesp_ies_len) { 2936 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2937 new_beacon->proberesp_ies = pos; 2938 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2939 pos += beacon->proberesp_ies_len; 2940 } 2941 if (beacon->assocresp_ies_len) { 2942 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2943 new_beacon->assocresp_ies = pos; 2944 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2945 pos += beacon->assocresp_ies_len; 2946 } 2947 if (beacon->probe_resp_len) { 2948 new_beacon->probe_resp_len = beacon->probe_resp_len; 2949 new_beacon->probe_resp = pos; 2950 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 2951 pos += beacon->probe_resp_len; 2952 } 2953 2954 /* might copy -1, meaning no changes requested */ 2955 new_beacon->ftm_responder = beacon->ftm_responder; 2956 if (beacon->lci) { 2957 new_beacon->lci_len = beacon->lci_len; 2958 new_beacon->lci = pos; 2959 memcpy(pos, beacon->lci, beacon->lci_len); 2960 pos += beacon->lci_len; 2961 } 2962 if (beacon->civicloc) { 2963 new_beacon->civicloc_len = beacon->civicloc_len; 2964 new_beacon->civicloc = pos; 2965 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 2966 pos += beacon->civicloc_len; 2967 } 2968 2969 return new_beacon; 2970 } 2971 2972 void ieee80211_csa_finish(struct ieee80211_vif *vif) 2973 { 2974 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2975 2976 ieee80211_queue_work(&sdata->local->hw, 2977 &sdata->csa_finalize_work); 2978 } 2979 EXPORT_SYMBOL(ieee80211_csa_finish); 2980 2981 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 2982 u32 *changed) 2983 { 2984 int err; 2985 2986 switch (sdata->vif.type) { 2987 case NL80211_IFTYPE_AP: 2988 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 2989 NULL); 2990 kfree(sdata->u.ap.next_beacon); 2991 sdata->u.ap.next_beacon = NULL; 2992 2993 if (err < 0) 2994 return err; 2995 *changed |= err; 2996 break; 2997 case NL80211_IFTYPE_ADHOC: 2998 err = ieee80211_ibss_finish_csa(sdata); 2999 if (err < 0) 3000 return err; 3001 *changed |= err; 3002 break; 3003 #ifdef CONFIG_MAC80211_MESH 3004 case NL80211_IFTYPE_MESH_POINT: 3005 err = ieee80211_mesh_finish_csa(sdata); 3006 if (err < 0) 3007 return err; 3008 *changed |= err; 3009 break; 3010 #endif 3011 default: 3012 WARN_ON(1); 3013 return -EINVAL; 3014 } 3015 3016 return 0; 3017 } 3018 3019 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3020 { 3021 struct ieee80211_local *local = sdata->local; 3022 u32 changed = 0; 3023 int err; 3024 3025 sdata_assert_lock(sdata); 3026 lockdep_assert_held(&local->mtx); 3027 lockdep_assert_held(&local->chanctx_mtx); 3028 3029 /* 3030 * using reservation isn't immediate as it may be deferred until later 3031 * with multi-vif. once reservation is complete it will re-schedule the 3032 * work with no reserved_chanctx so verify chandef to check if it 3033 * completed successfully 3034 */ 3035 3036 if (sdata->reserved_chanctx) { 3037 /* 3038 * with multi-vif csa driver may call ieee80211_csa_finish() 3039 * many times while waiting for other interfaces to use their 3040 * reservations 3041 */ 3042 if (sdata->reserved_ready) 3043 return 0; 3044 3045 return ieee80211_vif_use_reserved_context(sdata); 3046 } 3047 3048 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3049 &sdata->csa_chandef)) 3050 return -EINVAL; 3051 3052 sdata->vif.csa_active = false; 3053 3054 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3055 if (err) 3056 return err; 3057 3058 ieee80211_bss_info_change_notify(sdata, changed); 3059 3060 if (sdata->csa_block_tx) { 3061 ieee80211_wake_vif_queues(local, sdata, 3062 IEEE80211_QUEUE_STOP_REASON_CSA); 3063 sdata->csa_block_tx = false; 3064 } 3065 3066 err = drv_post_channel_switch(sdata); 3067 if (err) 3068 return err; 3069 3070 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3071 3072 return 0; 3073 } 3074 3075 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3076 { 3077 if (__ieee80211_csa_finalize(sdata)) { 3078 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3079 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3080 GFP_KERNEL); 3081 } 3082 } 3083 3084 void ieee80211_csa_finalize_work(struct work_struct *work) 3085 { 3086 struct ieee80211_sub_if_data *sdata = 3087 container_of(work, struct ieee80211_sub_if_data, 3088 csa_finalize_work); 3089 struct ieee80211_local *local = sdata->local; 3090 3091 sdata_lock(sdata); 3092 mutex_lock(&local->mtx); 3093 mutex_lock(&local->chanctx_mtx); 3094 3095 /* AP might have been stopped while waiting for the lock. */ 3096 if (!sdata->vif.csa_active) 3097 goto unlock; 3098 3099 if (!ieee80211_sdata_running(sdata)) 3100 goto unlock; 3101 3102 ieee80211_csa_finalize(sdata); 3103 3104 unlock: 3105 mutex_unlock(&local->chanctx_mtx); 3106 mutex_unlock(&local->mtx); 3107 sdata_unlock(sdata); 3108 } 3109 3110 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3111 struct cfg80211_csa_settings *params, 3112 u32 *changed) 3113 { 3114 struct ieee80211_csa_settings csa = {}; 3115 int err; 3116 3117 switch (sdata->vif.type) { 3118 case NL80211_IFTYPE_AP: 3119 sdata->u.ap.next_beacon = 3120 cfg80211_beacon_dup(¶ms->beacon_after); 3121 if (!sdata->u.ap.next_beacon) 3122 return -ENOMEM; 3123 3124 /* 3125 * With a count of 0, we don't have to wait for any 3126 * TBTT before switching, so complete the CSA 3127 * immediately. In theory, with a count == 1 we 3128 * should delay the switch until just before the next 3129 * TBTT, but that would complicate things so we switch 3130 * immediately too. If we would delay the switch 3131 * until the next TBTT, we would have to set the probe 3132 * response here. 3133 * 3134 * TODO: A channel switch with count <= 1 without 3135 * sending a CSA action frame is kind of useless, 3136 * because the clients won't know we're changing 3137 * channels. The action frame must be implemented 3138 * either here or in the userspace. 3139 */ 3140 if (params->count <= 1) 3141 break; 3142 3143 if ((params->n_counter_offsets_beacon > 3144 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3145 (params->n_counter_offsets_presp > 3146 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3147 return -EINVAL; 3148 3149 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3150 csa.counter_offsets_presp = params->counter_offsets_presp; 3151 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3152 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3153 csa.count = params->count; 3154 3155 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3156 if (err < 0) { 3157 kfree(sdata->u.ap.next_beacon); 3158 return err; 3159 } 3160 *changed |= err; 3161 3162 break; 3163 case NL80211_IFTYPE_ADHOC: 3164 if (!sdata->vif.bss_conf.ibss_joined) 3165 return -EINVAL; 3166 3167 if (params->chandef.width != sdata->u.ibss.chandef.width) 3168 return -EINVAL; 3169 3170 switch (params->chandef.width) { 3171 case NL80211_CHAN_WIDTH_40: 3172 if (cfg80211_get_chandef_type(¶ms->chandef) != 3173 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3174 return -EINVAL; 3175 case NL80211_CHAN_WIDTH_5: 3176 case NL80211_CHAN_WIDTH_10: 3177 case NL80211_CHAN_WIDTH_20_NOHT: 3178 case NL80211_CHAN_WIDTH_20: 3179 break; 3180 default: 3181 return -EINVAL; 3182 } 3183 3184 /* changes into another band are not supported */ 3185 if (sdata->u.ibss.chandef.chan->band != 3186 params->chandef.chan->band) 3187 return -EINVAL; 3188 3189 /* see comments in the NL80211_IFTYPE_AP block */ 3190 if (params->count > 1) { 3191 err = ieee80211_ibss_csa_beacon(sdata, params); 3192 if (err < 0) 3193 return err; 3194 *changed |= err; 3195 } 3196 3197 ieee80211_send_action_csa(sdata, params); 3198 3199 break; 3200 #ifdef CONFIG_MAC80211_MESH 3201 case NL80211_IFTYPE_MESH_POINT: { 3202 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3203 3204 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3205 return -EINVAL; 3206 3207 /* changes into another band are not supported */ 3208 if (sdata->vif.bss_conf.chandef.chan->band != 3209 params->chandef.chan->band) 3210 return -EINVAL; 3211 3212 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3213 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3214 if (!ifmsh->pre_value) 3215 ifmsh->pre_value = 1; 3216 else 3217 ifmsh->pre_value++; 3218 } 3219 3220 /* see comments in the NL80211_IFTYPE_AP block */ 3221 if (params->count > 1) { 3222 err = ieee80211_mesh_csa_beacon(sdata, params); 3223 if (err < 0) { 3224 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3225 return err; 3226 } 3227 *changed |= err; 3228 } 3229 3230 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3231 ieee80211_send_action_csa(sdata, params); 3232 3233 break; 3234 } 3235 #endif 3236 default: 3237 return -EOPNOTSUPP; 3238 } 3239 3240 return 0; 3241 } 3242 3243 static int 3244 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3245 struct cfg80211_csa_settings *params) 3246 { 3247 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3248 struct ieee80211_local *local = sdata->local; 3249 struct ieee80211_channel_switch ch_switch; 3250 struct ieee80211_chanctx_conf *conf; 3251 struct ieee80211_chanctx *chanctx; 3252 u32 changed = 0; 3253 int err; 3254 3255 sdata_assert_lock(sdata); 3256 lockdep_assert_held(&local->mtx); 3257 3258 if (!list_empty(&local->roc_list) || local->scanning) 3259 return -EBUSY; 3260 3261 if (sdata->wdev.cac_started) 3262 return -EBUSY; 3263 3264 if (cfg80211_chandef_identical(¶ms->chandef, 3265 &sdata->vif.bss_conf.chandef)) 3266 return -EINVAL; 3267 3268 /* don't allow another channel switch if one is already active. */ 3269 if (sdata->vif.csa_active) 3270 return -EBUSY; 3271 3272 mutex_lock(&local->chanctx_mtx); 3273 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3274 lockdep_is_held(&local->chanctx_mtx)); 3275 if (!conf) { 3276 err = -EBUSY; 3277 goto out; 3278 } 3279 3280 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3281 3282 ch_switch.timestamp = 0; 3283 ch_switch.device_timestamp = 0; 3284 ch_switch.block_tx = params->block_tx; 3285 ch_switch.chandef = params->chandef; 3286 ch_switch.count = params->count; 3287 3288 err = drv_pre_channel_switch(sdata, &ch_switch); 3289 if (err) 3290 goto out; 3291 3292 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3293 chanctx->mode, 3294 params->radar_required); 3295 if (err) 3296 goto out; 3297 3298 /* if reservation is invalid then this will fail */ 3299 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3300 if (err) { 3301 ieee80211_vif_unreserve_chanctx(sdata); 3302 goto out; 3303 } 3304 3305 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3306 if (err) { 3307 ieee80211_vif_unreserve_chanctx(sdata); 3308 goto out; 3309 } 3310 3311 sdata->csa_chandef = params->chandef; 3312 sdata->csa_block_tx = params->block_tx; 3313 sdata->vif.csa_active = true; 3314 3315 if (sdata->csa_block_tx) 3316 ieee80211_stop_vif_queues(local, sdata, 3317 IEEE80211_QUEUE_STOP_REASON_CSA); 3318 3319 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3320 params->count); 3321 3322 if (changed) { 3323 ieee80211_bss_info_change_notify(sdata, changed); 3324 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3325 } else { 3326 /* if the beacon didn't change, we can finalize immediately */ 3327 ieee80211_csa_finalize(sdata); 3328 } 3329 3330 out: 3331 mutex_unlock(&local->chanctx_mtx); 3332 return err; 3333 } 3334 3335 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3336 struct cfg80211_csa_settings *params) 3337 { 3338 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3339 struct ieee80211_local *local = sdata->local; 3340 int err; 3341 3342 mutex_lock(&local->mtx); 3343 err = __ieee80211_channel_switch(wiphy, dev, params); 3344 mutex_unlock(&local->mtx); 3345 3346 return err; 3347 } 3348 3349 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3350 { 3351 lockdep_assert_held(&local->mtx); 3352 3353 local->roc_cookie_counter++; 3354 3355 /* wow, you wrapped 64 bits ... more likely a bug */ 3356 if (WARN_ON(local->roc_cookie_counter == 0)) 3357 local->roc_cookie_counter++; 3358 3359 return local->roc_cookie_counter; 3360 } 3361 3362 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3363 u64 *cookie, gfp_t gfp) 3364 { 3365 unsigned long spin_flags; 3366 struct sk_buff *ack_skb; 3367 int id; 3368 3369 ack_skb = skb_copy(skb, gfp); 3370 if (!ack_skb) 3371 return -ENOMEM; 3372 3373 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3374 id = idr_alloc(&local->ack_status_frames, ack_skb, 3375 1, 0x2000, GFP_ATOMIC); 3376 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3377 3378 if (id < 0) { 3379 kfree_skb(ack_skb); 3380 return -ENOMEM; 3381 } 3382 3383 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3384 3385 *cookie = ieee80211_mgmt_tx_cookie(local); 3386 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3387 3388 return 0; 3389 } 3390 3391 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3392 struct wireless_dev *wdev, 3393 u16 frame_type, bool reg) 3394 { 3395 struct ieee80211_local *local = wiphy_priv(wiphy); 3396 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3397 3398 switch (frame_type) { 3399 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3400 if (reg) { 3401 local->probe_req_reg++; 3402 sdata->vif.probe_req_reg++; 3403 } else { 3404 if (local->probe_req_reg) 3405 local->probe_req_reg--; 3406 3407 if (sdata->vif.probe_req_reg) 3408 sdata->vif.probe_req_reg--; 3409 } 3410 3411 if (!local->open_count) 3412 break; 3413 3414 if (sdata->vif.probe_req_reg == 1) 3415 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ, 3416 FIF_PROBE_REQ); 3417 else if (sdata->vif.probe_req_reg == 0) 3418 drv_config_iface_filter(local, sdata, 0, 3419 FIF_PROBE_REQ); 3420 3421 ieee80211_configure_filter(local); 3422 break; 3423 default: 3424 break; 3425 } 3426 } 3427 3428 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3429 { 3430 struct ieee80211_local *local = wiphy_priv(wiphy); 3431 3432 if (local->started) 3433 return -EOPNOTSUPP; 3434 3435 return drv_set_antenna(local, tx_ant, rx_ant); 3436 } 3437 3438 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3439 { 3440 struct ieee80211_local *local = wiphy_priv(wiphy); 3441 3442 return drv_get_antenna(local, tx_ant, rx_ant); 3443 } 3444 3445 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3446 struct net_device *dev, 3447 struct cfg80211_gtk_rekey_data *data) 3448 { 3449 struct ieee80211_local *local = wiphy_priv(wiphy); 3450 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3451 3452 if (!local->ops->set_rekey_data) 3453 return -EOPNOTSUPP; 3454 3455 drv_set_rekey_data(local, sdata, data); 3456 3457 return 0; 3458 } 3459 3460 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3461 const u8 *peer, u64 *cookie) 3462 { 3463 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3464 struct ieee80211_local *local = sdata->local; 3465 struct ieee80211_qos_hdr *nullfunc; 3466 struct sk_buff *skb; 3467 int size = sizeof(*nullfunc); 3468 __le16 fc; 3469 bool qos; 3470 struct ieee80211_tx_info *info; 3471 struct sta_info *sta; 3472 struct ieee80211_chanctx_conf *chanctx_conf; 3473 enum nl80211_band band; 3474 int ret; 3475 3476 /* the lock is needed to assign the cookie later */ 3477 mutex_lock(&local->mtx); 3478 3479 rcu_read_lock(); 3480 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3481 if (WARN_ON(!chanctx_conf)) { 3482 ret = -EINVAL; 3483 goto unlock; 3484 } 3485 band = chanctx_conf->def.chan->band; 3486 sta = sta_info_get_bss(sdata, peer); 3487 if (sta) { 3488 qos = sta->sta.wme; 3489 } else { 3490 ret = -ENOLINK; 3491 goto unlock; 3492 } 3493 3494 if (qos) { 3495 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3496 IEEE80211_STYPE_QOS_NULLFUNC | 3497 IEEE80211_FCTL_FROMDS); 3498 } else { 3499 size -= 2; 3500 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3501 IEEE80211_STYPE_NULLFUNC | 3502 IEEE80211_FCTL_FROMDS); 3503 } 3504 3505 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3506 if (!skb) { 3507 ret = -ENOMEM; 3508 goto unlock; 3509 } 3510 3511 skb->dev = dev; 3512 3513 skb_reserve(skb, local->hw.extra_tx_headroom); 3514 3515 nullfunc = skb_put(skb, size); 3516 nullfunc->frame_control = fc; 3517 nullfunc->duration_id = 0; 3518 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3519 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3520 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3521 nullfunc->seq_ctrl = 0; 3522 3523 info = IEEE80211_SKB_CB(skb); 3524 3525 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3526 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3527 info->band = band; 3528 3529 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3530 skb->priority = 7; 3531 if (qos) 3532 nullfunc->qos_ctrl = cpu_to_le16(7); 3533 3534 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3535 if (ret) { 3536 kfree_skb(skb); 3537 goto unlock; 3538 } 3539 3540 local_bh_disable(); 3541 ieee80211_xmit(sdata, sta, skb, 0); 3542 local_bh_enable(); 3543 3544 ret = 0; 3545 unlock: 3546 rcu_read_unlock(); 3547 mutex_unlock(&local->mtx); 3548 3549 return ret; 3550 } 3551 3552 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3553 struct wireless_dev *wdev, 3554 struct cfg80211_chan_def *chandef) 3555 { 3556 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3557 struct ieee80211_local *local = wiphy_priv(wiphy); 3558 struct ieee80211_chanctx_conf *chanctx_conf; 3559 int ret = -ENODATA; 3560 3561 rcu_read_lock(); 3562 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3563 if (chanctx_conf) { 3564 *chandef = sdata->vif.bss_conf.chandef; 3565 ret = 0; 3566 } else if (local->open_count > 0 && 3567 local->open_count == local->monitors && 3568 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3569 if (local->use_chanctx) 3570 *chandef = local->monitor_chandef; 3571 else 3572 *chandef = local->_oper_chandef; 3573 ret = 0; 3574 } 3575 rcu_read_unlock(); 3576 3577 return ret; 3578 } 3579 3580 #ifdef CONFIG_PM 3581 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3582 { 3583 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3584 } 3585 #endif 3586 3587 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3588 struct net_device *dev, 3589 struct cfg80211_qos_map *qos_map) 3590 { 3591 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3592 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3593 3594 if (qos_map) { 3595 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3596 if (!new_qos_map) 3597 return -ENOMEM; 3598 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3599 } else { 3600 /* A NULL qos_map was passed to disable QoS mapping */ 3601 new_qos_map = NULL; 3602 } 3603 3604 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3605 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3606 if (old_qos_map) 3607 kfree_rcu(old_qos_map, rcu_head); 3608 3609 return 0; 3610 } 3611 3612 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3613 struct net_device *dev, 3614 struct cfg80211_chan_def *chandef) 3615 { 3616 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3617 int ret; 3618 u32 changed = 0; 3619 3620 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3621 if (ret == 0) 3622 ieee80211_bss_info_change_notify(sdata, changed); 3623 3624 return ret; 3625 } 3626 3627 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3628 u8 tsid, const u8 *peer, u8 up, 3629 u16 admitted_time) 3630 { 3631 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3632 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3633 int ac = ieee802_1d_to_ac[up]; 3634 3635 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3636 return -EOPNOTSUPP; 3637 3638 if (!(sdata->wmm_acm & BIT(up))) 3639 return -EINVAL; 3640 3641 if (ifmgd->tx_tspec[ac].admitted_time) 3642 return -EBUSY; 3643 3644 if (admitted_time) { 3645 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3646 ifmgd->tx_tspec[ac].tsid = tsid; 3647 ifmgd->tx_tspec[ac].up = up; 3648 } 3649 3650 return 0; 3651 } 3652 3653 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3654 u8 tsid, const u8 *peer) 3655 { 3656 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3657 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3658 struct ieee80211_local *local = wiphy_priv(wiphy); 3659 int ac; 3660 3661 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3662 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3663 3664 /* skip unused entries */ 3665 if (!tx_tspec->admitted_time) 3666 continue; 3667 3668 if (tx_tspec->tsid != tsid) 3669 continue; 3670 3671 /* due to this new packets will be reassigned to non-ACM ACs */ 3672 tx_tspec->up = -1; 3673 3674 /* Make sure that all packets have been sent to avoid to 3675 * restore the QoS params on packets that are still on the 3676 * queues. 3677 */ 3678 synchronize_net(); 3679 ieee80211_flush_queues(local, sdata, false); 3680 3681 /* restore the normal QoS parameters 3682 * (unconditionally to avoid races) 3683 */ 3684 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3685 tx_tspec->downgraded = false; 3686 ieee80211_sta_handle_tspec_ac_params(sdata); 3687 3688 /* finally clear all the data */ 3689 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3690 3691 return 0; 3692 } 3693 3694 return -ENOENT; 3695 } 3696 3697 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3698 u8 inst_id, 3699 enum nl80211_nan_func_term_reason reason, 3700 gfp_t gfp) 3701 { 3702 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3703 struct cfg80211_nan_func *func; 3704 u64 cookie; 3705 3706 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3707 return; 3708 3709 spin_lock_bh(&sdata->u.nan.func_lock); 3710 3711 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3712 if (WARN_ON(!func)) { 3713 spin_unlock_bh(&sdata->u.nan.func_lock); 3714 return; 3715 } 3716 3717 cookie = func->cookie; 3718 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3719 3720 spin_unlock_bh(&sdata->u.nan.func_lock); 3721 3722 cfg80211_free_nan_func(func); 3723 3724 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3725 reason, cookie, gfp); 3726 } 3727 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3728 3729 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3730 struct cfg80211_nan_match_params *match, 3731 gfp_t gfp) 3732 { 3733 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3734 struct cfg80211_nan_func *func; 3735 3736 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3737 return; 3738 3739 spin_lock_bh(&sdata->u.nan.func_lock); 3740 3741 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3742 if (WARN_ON(!func)) { 3743 spin_unlock_bh(&sdata->u.nan.func_lock); 3744 return; 3745 } 3746 match->cookie = func->cookie; 3747 3748 spin_unlock_bh(&sdata->u.nan.func_lock); 3749 3750 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3751 } 3752 EXPORT_SYMBOL(ieee80211_nan_func_match); 3753 3754 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3755 struct net_device *dev, 3756 const bool enabled) 3757 { 3758 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3759 3760 sdata->u.ap.multicast_to_unicast = enabled; 3761 3762 return 0; 3763 } 3764 3765 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 3766 struct txq_info *txqi) 3767 { 3768 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 3769 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 3770 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 3771 } 3772 3773 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 3774 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 3775 txqstats->backlog_packets = txqi->tin.backlog_packets; 3776 } 3777 3778 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 3779 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 3780 txqstats->flows = txqi->tin.flows; 3781 } 3782 3783 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 3784 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 3785 txqstats->drops = txqi->cstats.drop_count; 3786 } 3787 3788 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 3789 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 3790 txqstats->ecn_marks = txqi->cstats.ecn_mark; 3791 } 3792 3793 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 3794 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 3795 txqstats->overlimit = txqi->tin.overlimit; 3796 } 3797 3798 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 3799 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 3800 txqstats->collisions = txqi->tin.collisions; 3801 } 3802 3803 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 3804 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 3805 txqstats->tx_bytes = txqi->tin.tx_bytes; 3806 } 3807 3808 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 3809 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 3810 txqstats->tx_packets = txqi->tin.tx_packets; 3811 } 3812 } 3813 3814 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 3815 struct wireless_dev *wdev, 3816 struct cfg80211_txq_stats *txqstats) 3817 { 3818 struct ieee80211_local *local = wiphy_priv(wiphy); 3819 struct ieee80211_sub_if_data *sdata; 3820 int ret = 0; 3821 3822 if (!local->ops->wake_tx_queue) 3823 return 1; 3824 3825 spin_lock_bh(&local->fq.lock); 3826 rcu_read_lock(); 3827 3828 if (wdev) { 3829 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3830 if (!sdata->vif.txq) { 3831 ret = 1; 3832 goto out; 3833 } 3834 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 3835 } else { 3836 /* phy stats */ 3837 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 3838 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 3839 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 3840 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 3841 BIT(NL80211_TXQ_STATS_COLLISIONS) | 3842 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 3843 txqstats->backlog_packets = local->fq.backlog; 3844 txqstats->backlog_bytes = local->fq.memory_usage; 3845 txqstats->overlimit = local->fq.overlimit; 3846 txqstats->overmemory = local->fq.overmemory; 3847 txqstats->collisions = local->fq.collisions; 3848 txqstats->max_flows = local->fq.flows_cnt; 3849 } 3850 3851 out: 3852 rcu_read_unlock(); 3853 spin_unlock_bh(&local->fq.lock); 3854 3855 return ret; 3856 } 3857 3858 static int 3859 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 3860 struct net_device *dev, 3861 struct cfg80211_ftm_responder_stats *ftm_stats) 3862 { 3863 struct ieee80211_local *local = wiphy_priv(wiphy); 3864 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3865 3866 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 3867 } 3868 3869 static int 3870 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3871 struct cfg80211_pmsr_request *request) 3872 { 3873 struct ieee80211_local *local = wiphy_priv(wiphy); 3874 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3875 3876 return drv_start_pmsr(local, sdata, request); 3877 } 3878 3879 static void 3880 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3881 struct cfg80211_pmsr_request *request) 3882 { 3883 struct ieee80211_local *local = wiphy_priv(wiphy); 3884 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3885 3886 return drv_abort_pmsr(local, sdata, request); 3887 } 3888 3889 static int ieee80211_set_tid_config(struct wiphy *wiphy, 3890 struct net_device *dev, 3891 struct cfg80211_tid_config *tid_conf) 3892 { 3893 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3894 struct sta_info *sta; 3895 int ret; 3896 3897 if (!sdata->local->ops->set_tid_config) 3898 return -EOPNOTSUPP; 3899 3900 if (!tid_conf->peer) 3901 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 3902 3903 mutex_lock(&sdata->local->sta_mtx); 3904 sta = sta_info_get_bss(sdata, tid_conf->peer); 3905 if (!sta) { 3906 mutex_unlock(&sdata->local->sta_mtx); 3907 return -ENOENT; 3908 } 3909 3910 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 3911 mutex_unlock(&sdata->local->sta_mtx); 3912 3913 return ret; 3914 } 3915 3916 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 3917 struct net_device *dev, 3918 const u8 *peer, u8 tid) 3919 { 3920 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3921 struct sta_info *sta; 3922 int ret; 3923 3924 if (!sdata->local->ops->reset_tid_config) 3925 return -EOPNOTSUPP; 3926 3927 if (!peer) 3928 return drv_reset_tid_config(sdata->local, sdata, NULL, tid); 3929 3930 mutex_lock(&sdata->local->sta_mtx); 3931 sta = sta_info_get_bss(sdata, peer); 3932 if (!sta) { 3933 mutex_unlock(&sdata->local->sta_mtx); 3934 return -ENOENT; 3935 } 3936 3937 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tid); 3938 mutex_unlock(&sdata->local->sta_mtx); 3939 3940 return ret; 3941 } 3942 3943 const struct cfg80211_ops mac80211_config_ops = { 3944 .add_virtual_intf = ieee80211_add_iface, 3945 .del_virtual_intf = ieee80211_del_iface, 3946 .change_virtual_intf = ieee80211_change_iface, 3947 .start_p2p_device = ieee80211_start_p2p_device, 3948 .stop_p2p_device = ieee80211_stop_p2p_device, 3949 .add_key = ieee80211_add_key, 3950 .del_key = ieee80211_del_key, 3951 .get_key = ieee80211_get_key, 3952 .set_default_key = ieee80211_config_default_key, 3953 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3954 .set_default_beacon_key = ieee80211_config_default_beacon_key, 3955 .start_ap = ieee80211_start_ap, 3956 .change_beacon = ieee80211_change_beacon, 3957 .stop_ap = ieee80211_stop_ap, 3958 .add_station = ieee80211_add_station, 3959 .del_station = ieee80211_del_station, 3960 .change_station = ieee80211_change_station, 3961 .get_station = ieee80211_get_station, 3962 .dump_station = ieee80211_dump_station, 3963 .dump_survey = ieee80211_dump_survey, 3964 #ifdef CONFIG_MAC80211_MESH 3965 .add_mpath = ieee80211_add_mpath, 3966 .del_mpath = ieee80211_del_mpath, 3967 .change_mpath = ieee80211_change_mpath, 3968 .get_mpath = ieee80211_get_mpath, 3969 .dump_mpath = ieee80211_dump_mpath, 3970 .get_mpp = ieee80211_get_mpp, 3971 .dump_mpp = ieee80211_dump_mpp, 3972 .update_mesh_config = ieee80211_update_mesh_config, 3973 .get_mesh_config = ieee80211_get_mesh_config, 3974 .join_mesh = ieee80211_join_mesh, 3975 .leave_mesh = ieee80211_leave_mesh, 3976 #endif 3977 .join_ocb = ieee80211_join_ocb, 3978 .leave_ocb = ieee80211_leave_ocb, 3979 .change_bss = ieee80211_change_bss, 3980 .set_txq_params = ieee80211_set_txq_params, 3981 .set_monitor_channel = ieee80211_set_monitor_channel, 3982 .suspend = ieee80211_suspend, 3983 .resume = ieee80211_resume, 3984 .scan = ieee80211_scan, 3985 .abort_scan = ieee80211_abort_scan, 3986 .sched_scan_start = ieee80211_sched_scan_start, 3987 .sched_scan_stop = ieee80211_sched_scan_stop, 3988 .auth = ieee80211_auth, 3989 .assoc = ieee80211_assoc, 3990 .deauth = ieee80211_deauth, 3991 .disassoc = ieee80211_disassoc, 3992 .join_ibss = ieee80211_join_ibss, 3993 .leave_ibss = ieee80211_leave_ibss, 3994 .set_mcast_rate = ieee80211_set_mcast_rate, 3995 .set_wiphy_params = ieee80211_set_wiphy_params, 3996 .set_tx_power = ieee80211_set_tx_power, 3997 .get_tx_power = ieee80211_get_tx_power, 3998 .set_wds_peer = ieee80211_set_wds_peer, 3999 .rfkill_poll = ieee80211_rfkill_poll, 4000 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 4001 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 4002 .set_power_mgmt = ieee80211_set_power_mgmt, 4003 .set_bitrate_mask = ieee80211_set_bitrate_mask, 4004 .remain_on_channel = ieee80211_remain_on_channel, 4005 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 4006 .mgmt_tx = ieee80211_mgmt_tx, 4007 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 4008 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 4009 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 4010 .mgmt_frame_register = ieee80211_mgmt_frame_register, 4011 .set_antenna = ieee80211_set_antenna, 4012 .get_antenna = ieee80211_get_antenna, 4013 .set_rekey_data = ieee80211_set_rekey_data, 4014 .tdls_oper = ieee80211_tdls_oper, 4015 .tdls_mgmt = ieee80211_tdls_mgmt, 4016 .tdls_channel_switch = ieee80211_tdls_channel_switch, 4017 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 4018 .probe_client = ieee80211_probe_client, 4019 .set_noack_map = ieee80211_set_noack_map, 4020 #ifdef CONFIG_PM 4021 .set_wakeup = ieee80211_set_wakeup, 4022 #endif 4023 .get_channel = ieee80211_cfg_get_channel, 4024 .start_radar_detection = ieee80211_start_radar_detection, 4025 .end_cac = ieee80211_end_cac, 4026 .channel_switch = ieee80211_channel_switch, 4027 .set_qos_map = ieee80211_set_qos_map, 4028 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 4029 .add_tx_ts = ieee80211_add_tx_ts, 4030 .del_tx_ts = ieee80211_del_tx_ts, 4031 .start_nan = ieee80211_start_nan, 4032 .stop_nan = ieee80211_stop_nan, 4033 .nan_change_conf = ieee80211_nan_change_conf, 4034 .add_nan_func = ieee80211_add_nan_func, 4035 .del_nan_func = ieee80211_del_nan_func, 4036 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 4037 .tx_control_port = ieee80211_tx_control_port, 4038 .get_txq_stats = ieee80211_get_txq_stats, 4039 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 4040 .start_pmsr = ieee80211_start_pmsr, 4041 .abort_pmsr = ieee80211_abort_pmsr, 4042 .probe_mesh_link = ieee80211_probe_mesh_link, 4043 .set_tid_config = ieee80211_set_tid_config, 4044 .reset_tid_config = ieee80211_reset_tid_config, 4045 }; 4046