1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * mac80211 configuration hooks for cfg80211 4 * 5 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 6 * Copyright 2013-2015 Intel Mobile Communications GmbH 7 * Copyright (C) 2015-2017 Intel Deutschland GmbH 8 * Copyright (C) 2018-2020 Intel Corporation 9 */ 10 11 #include <linux/ieee80211.h> 12 #include <linux/nl80211.h> 13 #include <linux/rtnetlink.h> 14 #include <linux/slab.h> 15 #include <net/net_namespace.h> 16 #include <linux/rcupdate.h> 17 #include <linux/fips.h> 18 #include <linux/if_ether.h> 19 #include <net/cfg80211.h> 20 #include "ieee80211_i.h" 21 #include "driver-ops.h" 22 #include "rate.h" 23 #include "mesh.h" 24 #include "wme.h" 25 26 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 27 struct vif_params *params) 28 { 29 bool mu_mimo_groups = false; 30 bool mu_mimo_follow = false; 31 32 if (params->vht_mumimo_groups) { 33 u64 membership; 34 35 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 36 37 memcpy(sdata->vif.bss_conf.mu_group.membership, 38 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 39 memcpy(sdata->vif.bss_conf.mu_group.position, 40 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 41 WLAN_USER_POSITION_LEN); 42 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS); 43 /* don't care about endianness - just check for 0 */ 44 memcpy(&membership, params->vht_mumimo_groups, 45 WLAN_MEMBERSHIP_LEN); 46 mu_mimo_groups = membership != 0; 47 } 48 49 if (params->vht_mumimo_follow_addr) { 50 mu_mimo_follow = 51 is_valid_ether_addr(params->vht_mumimo_follow_addr); 52 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 53 params->vht_mumimo_follow_addr); 54 } 55 56 sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 57 } 58 59 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 60 struct vif_params *params) 61 { 62 struct ieee80211_local *local = sdata->local; 63 struct ieee80211_sub_if_data *monitor_sdata; 64 65 /* check flags first */ 66 if (params->flags && ieee80211_sdata_running(sdata)) { 67 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 68 69 /* 70 * Prohibit MONITOR_FLAG_COOK_FRAMES and 71 * MONITOR_FLAG_ACTIVE to be changed while the 72 * interface is up. 73 * Else we would need to add a lot of cruft 74 * to update everything: 75 * cooked_mntrs, monitor and all fif_* counters 76 * reconfigure hardware 77 */ 78 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 79 return -EBUSY; 80 } 81 82 /* also validate MU-MIMO change */ 83 monitor_sdata = rtnl_dereference(local->monitor_sdata); 84 85 if (!monitor_sdata && 86 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 87 return -EOPNOTSUPP; 88 89 /* apply all changes now - no failures allowed */ 90 91 if (monitor_sdata) 92 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 93 94 if (params->flags) { 95 if (ieee80211_sdata_running(sdata)) { 96 ieee80211_adjust_monitor_flags(sdata, -1); 97 sdata->u.mntr.flags = params->flags; 98 ieee80211_adjust_monitor_flags(sdata, 1); 99 100 ieee80211_configure_filter(local); 101 } else { 102 /* 103 * Because the interface is down, ieee80211_do_stop 104 * and ieee80211_do_open take care of "everything" 105 * mentioned in the comment above. 106 */ 107 sdata->u.mntr.flags = params->flags; 108 } 109 } 110 111 return 0; 112 } 113 114 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 115 const char *name, 116 unsigned char name_assign_type, 117 enum nl80211_iftype type, 118 struct vif_params *params) 119 { 120 struct ieee80211_local *local = wiphy_priv(wiphy); 121 struct wireless_dev *wdev; 122 struct ieee80211_sub_if_data *sdata; 123 int err; 124 125 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 126 if (err) 127 return ERR_PTR(err); 128 129 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 130 131 if (type == NL80211_IFTYPE_MONITOR) { 132 err = ieee80211_set_mon_options(sdata, params); 133 if (err) { 134 ieee80211_if_remove(sdata); 135 return NULL; 136 } 137 } 138 139 return wdev; 140 } 141 142 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 143 { 144 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 145 146 return 0; 147 } 148 149 static int ieee80211_change_iface(struct wiphy *wiphy, 150 struct net_device *dev, 151 enum nl80211_iftype type, 152 struct vif_params *params) 153 { 154 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 155 int ret; 156 157 ret = ieee80211_if_change_type(sdata, type); 158 if (ret) 159 return ret; 160 161 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 162 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 163 ieee80211_check_fast_rx_iface(sdata); 164 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 165 sdata->u.mgd.use_4addr = params->use_4addr; 166 } 167 168 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 169 ret = ieee80211_set_mon_options(sdata, params); 170 if (ret) 171 return ret; 172 } 173 174 return 0; 175 } 176 177 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 178 struct wireless_dev *wdev) 179 { 180 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 181 int ret; 182 183 mutex_lock(&sdata->local->chanctx_mtx); 184 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 185 mutex_unlock(&sdata->local->chanctx_mtx); 186 if (ret < 0) 187 return ret; 188 189 return ieee80211_do_open(wdev, true); 190 } 191 192 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 193 struct wireless_dev *wdev) 194 { 195 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 196 } 197 198 static int ieee80211_start_nan(struct wiphy *wiphy, 199 struct wireless_dev *wdev, 200 struct cfg80211_nan_conf *conf) 201 { 202 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 203 int ret; 204 205 mutex_lock(&sdata->local->chanctx_mtx); 206 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 207 mutex_unlock(&sdata->local->chanctx_mtx); 208 if (ret < 0) 209 return ret; 210 211 ret = ieee80211_do_open(wdev, true); 212 if (ret) 213 return ret; 214 215 ret = drv_start_nan(sdata->local, sdata, conf); 216 if (ret) 217 ieee80211_sdata_stop(sdata); 218 219 sdata->u.nan.conf = *conf; 220 221 return ret; 222 } 223 224 static void ieee80211_stop_nan(struct wiphy *wiphy, 225 struct wireless_dev *wdev) 226 { 227 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 228 229 drv_stop_nan(sdata->local, sdata); 230 ieee80211_sdata_stop(sdata); 231 } 232 233 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 234 struct wireless_dev *wdev, 235 struct cfg80211_nan_conf *conf, 236 u32 changes) 237 { 238 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 239 struct cfg80211_nan_conf new_conf; 240 int ret = 0; 241 242 if (sdata->vif.type != NL80211_IFTYPE_NAN) 243 return -EOPNOTSUPP; 244 245 if (!ieee80211_sdata_running(sdata)) 246 return -ENETDOWN; 247 248 new_conf = sdata->u.nan.conf; 249 250 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 251 new_conf.master_pref = conf->master_pref; 252 253 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 254 new_conf.bands = conf->bands; 255 256 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 257 if (!ret) 258 sdata->u.nan.conf = new_conf; 259 260 return ret; 261 } 262 263 static int ieee80211_add_nan_func(struct wiphy *wiphy, 264 struct wireless_dev *wdev, 265 struct cfg80211_nan_func *nan_func) 266 { 267 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 268 int ret; 269 270 if (sdata->vif.type != NL80211_IFTYPE_NAN) 271 return -EOPNOTSUPP; 272 273 if (!ieee80211_sdata_running(sdata)) 274 return -ENETDOWN; 275 276 spin_lock_bh(&sdata->u.nan.func_lock); 277 278 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 279 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 280 GFP_ATOMIC); 281 spin_unlock_bh(&sdata->u.nan.func_lock); 282 283 if (ret < 0) 284 return ret; 285 286 nan_func->instance_id = ret; 287 288 WARN_ON(nan_func->instance_id == 0); 289 290 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 291 if (ret) { 292 spin_lock_bh(&sdata->u.nan.func_lock); 293 idr_remove(&sdata->u.nan.function_inst_ids, 294 nan_func->instance_id); 295 spin_unlock_bh(&sdata->u.nan.func_lock); 296 } 297 298 return ret; 299 } 300 301 static struct cfg80211_nan_func * 302 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 303 u64 cookie) 304 { 305 struct cfg80211_nan_func *func; 306 int id; 307 308 lockdep_assert_held(&sdata->u.nan.func_lock); 309 310 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 311 if (func->cookie == cookie) 312 return func; 313 } 314 315 return NULL; 316 } 317 318 static void ieee80211_del_nan_func(struct wiphy *wiphy, 319 struct wireless_dev *wdev, u64 cookie) 320 { 321 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 322 struct cfg80211_nan_func *func; 323 u8 instance_id = 0; 324 325 if (sdata->vif.type != NL80211_IFTYPE_NAN || 326 !ieee80211_sdata_running(sdata)) 327 return; 328 329 spin_lock_bh(&sdata->u.nan.func_lock); 330 331 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 332 if (func) 333 instance_id = func->instance_id; 334 335 spin_unlock_bh(&sdata->u.nan.func_lock); 336 337 if (instance_id) 338 drv_del_nan_func(sdata->local, sdata, instance_id); 339 } 340 341 static int ieee80211_set_noack_map(struct wiphy *wiphy, 342 struct net_device *dev, 343 u16 noack_map) 344 { 345 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 346 347 sdata->noack_map = noack_map; 348 349 ieee80211_check_fast_xmit_iface(sdata); 350 351 return 0; 352 } 353 354 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 355 const u8 *mac_addr, u8 key_idx) 356 { 357 struct ieee80211_local *local = sdata->local; 358 struct ieee80211_key *key; 359 struct sta_info *sta; 360 int ret = -EINVAL; 361 362 if (!wiphy_ext_feature_isset(local->hw.wiphy, 363 NL80211_EXT_FEATURE_EXT_KEY_ID)) 364 return -EINVAL; 365 366 sta = sta_info_get_bss(sdata, mac_addr); 367 368 if (!sta) 369 return -EINVAL; 370 371 if (sta->ptk_idx == key_idx) 372 return 0; 373 374 mutex_lock(&local->key_mtx); 375 key = key_mtx_dereference(local, sta->ptk[key_idx]); 376 377 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 378 ret = ieee80211_set_tx_key(key); 379 380 mutex_unlock(&local->key_mtx); 381 return ret; 382 } 383 384 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 385 u8 key_idx, bool pairwise, const u8 *mac_addr, 386 struct key_params *params) 387 { 388 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 389 struct ieee80211_local *local = sdata->local; 390 struct sta_info *sta = NULL; 391 const struct ieee80211_cipher_scheme *cs = NULL; 392 struct ieee80211_key *key; 393 int err; 394 395 if (!ieee80211_sdata_running(sdata)) 396 return -ENETDOWN; 397 398 if (pairwise && params->mode == NL80211_KEY_SET_TX) 399 return ieee80211_set_tx(sdata, mac_addr, key_idx); 400 401 /* reject WEP and TKIP keys if WEP failed to initialize */ 402 switch (params->cipher) { 403 case WLAN_CIPHER_SUITE_WEP40: 404 case WLAN_CIPHER_SUITE_TKIP: 405 case WLAN_CIPHER_SUITE_WEP104: 406 if (WARN_ON_ONCE(fips_enabled)) 407 return -EINVAL; 408 case WLAN_CIPHER_SUITE_CCMP: 409 case WLAN_CIPHER_SUITE_CCMP_256: 410 case WLAN_CIPHER_SUITE_AES_CMAC: 411 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 412 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 413 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 414 case WLAN_CIPHER_SUITE_GCMP: 415 case WLAN_CIPHER_SUITE_GCMP_256: 416 break; 417 default: 418 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); 419 break; 420 } 421 422 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 423 params->key, params->seq_len, params->seq, 424 cs); 425 if (IS_ERR(key)) 426 return PTR_ERR(key); 427 428 if (pairwise) 429 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 430 431 if (params->mode == NL80211_KEY_NO_TX) 432 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 433 434 mutex_lock(&local->sta_mtx); 435 436 if (mac_addr) { 437 sta = sta_info_get_bss(sdata, mac_addr); 438 /* 439 * The ASSOC test makes sure the driver is ready to 440 * receive the key. When wpa_supplicant has roamed 441 * using FT, it attempts to set the key before 442 * association has completed, this rejects that attempt 443 * so it will set the key again after association. 444 * 445 * TODO: accept the key if we have a station entry and 446 * add it to the device after the station. 447 */ 448 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 449 ieee80211_key_free_unused(key); 450 err = -ENOENT; 451 goto out_unlock; 452 } 453 } 454 455 switch (sdata->vif.type) { 456 case NL80211_IFTYPE_STATION: 457 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 458 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 459 break; 460 case NL80211_IFTYPE_AP: 461 case NL80211_IFTYPE_AP_VLAN: 462 /* Keys without a station are used for TX only */ 463 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 464 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 465 break; 466 case NL80211_IFTYPE_ADHOC: 467 /* no MFP (yet) */ 468 break; 469 case NL80211_IFTYPE_MESH_POINT: 470 #ifdef CONFIG_MAC80211_MESH 471 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 472 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 473 break; 474 #endif 475 case NL80211_IFTYPE_WDS: 476 case NL80211_IFTYPE_MONITOR: 477 case NL80211_IFTYPE_P2P_DEVICE: 478 case NL80211_IFTYPE_NAN: 479 case NL80211_IFTYPE_UNSPECIFIED: 480 case NUM_NL80211_IFTYPES: 481 case NL80211_IFTYPE_P2P_CLIENT: 482 case NL80211_IFTYPE_P2P_GO: 483 case NL80211_IFTYPE_OCB: 484 /* shouldn't happen */ 485 WARN_ON_ONCE(1); 486 break; 487 } 488 489 if (sta) 490 sta->cipher_scheme = cs; 491 492 err = ieee80211_key_link(key, sdata, sta); 493 494 out_unlock: 495 mutex_unlock(&local->sta_mtx); 496 497 return err; 498 } 499 500 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 501 u8 key_idx, bool pairwise, const u8 *mac_addr) 502 { 503 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 504 struct ieee80211_local *local = sdata->local; 505 struct sta_info *sta; 506 struct ieee80211_key *key = NULL; 507 int ret; 508 509 mutex_lock(&local->sta_mtx); 510 mutex_lock(&local->key_mtx); 511 512 if (mac_addr) { 513 ret = -ENOENT; 514 515 sta = sta_info_get_bss(sdata, mac_addr); 516 if (!sta) 517 goto out_unlock; 518 519 if (pairwise) 520 key = key_mtx_dereference(local, sta->ptk[key_idx]); 521 else 522 key = key_mtx_dereference(local, sta->gtk[key_idx]); 523 } else 524 key = key_mtx_dereference(local, sdata->keys[key_idx]); 525 526 if (!key) { 527 ret = -ENOENT; 528 goto out_unlock; 529 } 530 531 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 532 533 ret = 0; 534 out_unlock: 535 mutex_unlock(&local->key_mtx); 536 mutex_unlock(&local->sta_mtx); 537 538 return ret; 539 } 540 541 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 542 u8 key_idx, bool pairwise, const u8 *mac_addr, 543 void *cookie, 544 void (*callback)(void *cookie, 545 struct key_params *params)) 546 { 547 struct ieee80211_sub_if_data *sdata; 548 struct sta_info *sta = NULL; 549 u8 seq[6] = {0}; 550 struct key_params params; 551 struct ieee80211_key *key = NULL; 552 u64 pn64; 553 u32 iv32; 554 u16 iv16; 555 int err = -ENOENT; 556 struct ieee80211_key_seq kseq = {}; 557 558 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 559 560 rcu_read_lock(); 561 562 if (mac_addr) { 563 sta = sta_info_get_bss(sdata, mac_addr); 564 if (!sta) 565 goto out; 566 567 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 568 key = rcu_dereference(sta->ptk[key_idx]); 569 else if (!pairwise && 570 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS + 571 NUM_DEFAULT_BEACON_KEYS) 572 key = rcu_dereference(sta->gtk[key_idx]); 573 } else 574 key = rcu_dereference(sdata->keys[key_idx]); 575 576 if (!key) 577 goto out; 578 579 memset(¶ms, 0, sizeof(params)); 580 581 params.cipher = key->conf.cipher; 582 583 switch (key->conf.cipher) { 584 case WLAN_CIPHER_SUITE_TKIP: 585 pn64 = atomic64_read(&key->conf.tx_pn); 586 iv32 = TKIP_PN_TO_IV32(pn64); 587 iv16 = TKIP_PN_TO_IV16(pn64); 588 589 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 590 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 591 drv_get_key_seq(sdata->local, key, &kseq); 592 iv32 = kseq.tkip.iv32; 593 iv16 = kseq.tkip.iv16; 594 } 595 596 seq[0] = iv16 & 0xff; 597 seq[1] = (iv16 >> 8) & 0xff; 598 seq[2] = iv32 & 0xff; 599 seq[3] = (iv32 >> 8) & 0xff; 600 seq[4] = (iv32 >> 16) & 0xff; 601 seq[5] = (iv32 >> 24) & 0xff; 602 params.seq = seq; 603 params.seq_len = 6; 604 break; 605 case WLAN_CIPHER_SUITE_CCMP: 606 case WLAN_CIPHER_SUITE_CCMP_256: 607 case WLAN_CIPHER_SUITE_AES_CMAC: 608 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 609 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 610 offsetof(typeof(kseq), aes_cmac)); 611 /* fall through */ 612 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 613 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 614 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 615 offsetof(typeof(kseq), aes_gmac)); 616 /* fall through */ 617 case WLAN_CIPHER_SUITE_GCMP: 618 case WLAN_CIPHER_SUITE_GCMP_256: 619 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 620 offsetof(typeof(kseq), gcmp)); 621 622 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 623 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 624 drv_get_key_seq(sdata->local, key, &kseq); 625 memcpy(seq, kseq.ccmp.pn, 6); 626 } else { 627 pn64 = atomic64_read(&key->conf.tx_pn); 628 seq[0] = pn64; 629 seq[1] = pn64 >> 8; 630 seq[2] = pn64 >> 16; 631 seq[3] = pn64 >> 24; 632 seq[4] = pn64 >> 32; 633 seq[5] = pn64 >> 40; 634 } 635 params.seq = seq; 636 params.seq_len = 6; 637 break; 638 default: 639 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 640 break; 641 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 642 break; 643 drv_get_key_seq(sdata->local, key, &kseq); 644 params.seq = kseq.hw.seq; 645 params.seq_len = kseq.hw.seq_len; 646 break; 647 } 648 649 params.key = key->conf.key; 650 params.key_len = key->conf.keylen; 651 652 callback(cookie, ¶ms); 653 err = 0; 654 655 out: 656 rcu_read_unlock(); 657 return err; 658 } 659 660 static int ieee80211_config_default_key(struct wiphy *wiphy, 661 struct net_device *dev, 662 u8 key_idx, bool uni, 663 bool multi) 664 { 665 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 666 667 ieee80211_set_default_key(sdata, key_idx, uni, multi); 668 669 return 0; 670 } 671 672 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 673 struct net_device *dev, 674 u8 key_idx) 675 { 676 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 677 678 ieee80211_set_default_mgmt_key(sdata, key_idx); 679 680 return 0; 681 } 682 683 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy, 684 struct net_device *dev, 685 u8 key_idx) 686 { 687 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 688 689 ieee80211_set_default_beacon_key(sdata, key_idx); 690 691 return 0; 692 } 693 694 void sta_set_rate_info_tx(struct sta_info *sta, 695 const struct ieee80211_tx_rate *rate, 696 struct rate_info *rinfo) 697 { 698 rinfo->flags = 0; 699 if (rate->flags & IEEE80211_TX_RC_MCS) { 700 rinfo->flags |= RATE_INFO_FLAGS_MCS; 701 rinfo->mcs = rate->idx; 702 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 703 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 704 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 705 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 706 } else { 707 struct ieee80211_supported_band *sband; 708 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 709 u16 brate; 710 711 sband = ieee80211_get_sband(sta->sdata); 712 if (sband) { 713 brate = sband->bitrates[rate->idx].bitrate; 714 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 715 } 716 } 717 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 718 rinfo->bw = RATE_INFO_BW_40; 719 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 720 rinfo->bw = RATE_INFO_BW_80; 721 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 722 rinfo->bw = RATE_INFO_BW_160; 723 else 724 rinfo->bw = RATE_INFO_BW_20; 725 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 726 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 727 } 728 729 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 730 int idx, u8 *mac, struct station_info *sinfo) 731 { 732 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 733 struct ieee80211_local *local = sdata->local; 734 struct sta_info *sta; 735 int ret = -ENOENT; 736 737 mutex_lock(&local->sta_mtx); 738 739 sta = sta_info_get_by_idx(sdata, idx); 740 if (sta) { 741 ret = 0; 742 memcpy(mac, sta->sta.addr, ETH_ALEN); 743 sta_set_sinfo(sta, sinfo, true); 744 } 745 746 mutex_unlock(&local->sta_mtx); 747 748 return ret; 749 } 750 751 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 752 int idx, struct survey_info *survey) 753 { 754 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 755 756 return drv_get_survey(local, idx, survey); 757 } 758 759 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 760 const u8 *mac, struct station_info *sinfo) 761 { 762 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 763 struct ieee80211_local *local = sdata->local; 764 struct sta_info *sta; 765 int ret = -ENOENT; 766 767 mutex_lock(&local->sta_mtx); 768 769 sta = sta_info_get_bss(sdata, mac); 770 if (sta) { 771 ret = 0; 772 sta_set_sinfo(sta, sinfo, true); 773 } 774 775 mutex_unlock(&local->sta_mtx); 776 777 return ret; 778 } 779 780 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 781 struct cfg80211_chan_def *chandef) 782 { 783 struct ieee80211_local *local = wiphy_priv(wiphy); 784 struct ieee80211_sub_if_data *sdata; 785 int ret = 0; 786 787 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 788 return 0; 789 790 mutex_lock(&local->mtx); 791 if (local->use_chanctx) { 792 sdata = rtnl_dereference(local->monitor_sdata); 793 if (sdata) { 794 ieee80211_vif_release_channel(sdata); 795 ret = ieee80211_vif_use_channel(sdata, chandef, 796 IEEE80211_CHANCTX_EXCLUSIVE); 797 } 798 } else if (local->open_count == local->monitors) { 799 local->_oper_chandef = *chandef; 800 ieee80211_hw_config(local, 0); 801 } 802 803 if (ret == 0) 804 local->monitor_chandef = *chandef; 805 mutex_unlock(&local->mtx); 806 807 return ret; 808 } 809 810 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 811 const u8 *resp, size_t resp_len, 812 const struct ieee80211_csa_settings *csa) 813 { 814 struct probe_resp *new, *old; 815 816 if (!resp || !resp_len) 817 return 1; 818 819 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 820 821 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 822 if (!new) 823 return -ENOMEM; 824 825 new->len = resp_len; 826 memcpy(new->data, resp, resp_len); 827 828 if (csa) 829 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp, 830 csa->n_counter_offsets_presp * 831 sizeof(new->csa_counter_offsets[0])); 832 833 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 834 if (old) 835 kfree_rcu(old, rcu_head); 836 837 return 0; 838 } 839 840 static int ieee80211_set_ftm_responder_params( 841 struct ieee80211_sub_if_data *sdata, 842 const u8 *lci, size_t lci_len, 843 const u8 *civicloc, size_t civicloc_len) 844 { 845 struct ieee80211_ftm_responder_params *new, *old; 846 struct ieee80211_bss_conf *bss_conf; 847 u8 *pos; 848 int len; 849 850 if (!lci_len && !civicloc_len) 851 return 0; 852 853 bss_conf = &sdata->vif.bss_conf; 854 old = bss_conf->ftmr_params; 855 len = lci_len + civicloc_len; 856 857 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 858 if (!new) 859 return -ENOMEM; 860 861 pos = (u8 *)(new + 1); 862 if (lci_len) { 863 new->lci_len = lci_len; 864 new->lci = pos; 865 memcpy(pos, lci, lci_len); 866 pos += lci_len; 867 } 868 869 if (civicloc_len) { 870 new->civicloc_len = civicloc_len; 871 new->civicloc = pos; 872 memcpy(pos, civicloc, civicloc_len); 873 pos += civicloc_len; 874 } 875 876 bss_conf->ftmr_params = new; 877 kfree(old); 878 879 return 0; 880 } 881 882 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 883 struct cfg80211_beacon_data *params, 884 const struct ieee80211_csa_settings *csa) 885 { 886 struct beacon_data *new, *old; 887 int new_head_len, new_tail_len; 888 int size, err; 889 u32 changed = BSS_CHANGED_BEACON; 890 891 old = sdata_dereference(sdata->u.ap.beacon, sdata); 892 893 894 /* Need to have a beacon head if we don't have one yet */ 895 if (!params->head && !old) 896 return -EINVAL; 897 898 /* new or old head? */ 899 if (params->head) 900 new_head_len = params->head_len; 901 else 902 new_head_len = old->head_len; 903 904 /* new or old tail? */ 905 if (params->tail || !old) 906 /* params->tail_len will be zero for !params->tail */ 907 new_tail_len = params->tail_len; 908 else 909 new_tail_len = old->tail_len; 910 911 size = sizeof(*new) + new_head_len + new_tail_len; 912 913 new = kzalloc(size, GFP_KERNEL); 914 if (!new) 915 return -ENOMEM; 916 917 /* start filling the new info now */ 918 919 /* 920 * pointers go into the block we allocated, 921 * memory is | beacon_data | head | tail | 922 */ 923 new->head = ((u8 *) new) + sizeof(*new); 924 new->tail = new->head + new_head_len; 925 new->head_len = new_head_len; 926 new->tail_len = new_tail_len; 927 928 if (csa) { 929 new->csa_current_counter = csa->count; 930 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon, 931 csa->n_counter_offsets_beacon * 932 sizeof(new->csa_counter_offsets[0])); 933 } 934 935 /* copy in head */ 936 if (params->head) 937 memcpy(new->head, params->head, new_head_len); 938 else 939 memcpy(new->head, old->head, new_head_len); 940 941 /* copy in optional tail */ 942 if (params->tail) 943 memcpy(new->tail, params->tail, new_tail_len); 944 else 945 if (old) 946 memcpy(new->tail, old->tail, new_tail_len); 947 948 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 949 params->probe_resp_len, csa); 950 if (err < 0) { 951 kfree(new); 952 return err; 953 } 954 if (err == 0) 955 changed |= BSS_CHANGED_AP_PROBE_RESP; 956 957 if (params->ftm_responder != -1) { 958 sdata->vif.bss_conf.ftm_responder = params->ftm_responder; 959 err = ieee80211_set_ftm_responder_params(sdata, 960 params->lci, 961 params->lci_len, 962 params->civicloc, 963 params->civicloc_len); 964 965 if (err < 0) { 966 kfree(new); 967 return err; 968 } 969 970 changed |= BSS_CHANGED_FTM_RESPONDER; 971 } 972 973 rcu_assign_pointer(sdata->u.ap.beacon, new); 974 975 if (old) 976 kfree_rcu(old, rcu_head); 977 978 return changed; 979 } 980 981 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 982 struct cfg80211_ap_settings *params) 983 { 984 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 985 struct ieee80211_local *local = sdata->local; 986 struct beacon_data *old; 987 struct ieee80211_sub_if_data *vlan; 988 u32 changed = BSS_CHANGED_BEACON_INT | 989 BSS_CHANGED_BEACON_ENABLED | 990 BSS_CHANGED_BEACON | 991 BSS_CHANGED_SSID | 992 BSS_CHANGED_P2P_PS | 993 BSS_CHANGED_TXPOWER | 994 BSS_CHANGED_TWT | 995 BSS_CHANGED_HE_OBSS_PD | 996 BSS_CHANGED_HE_BSS_COLOR; 997 int i, err; 998 int prev_beacon_int; 999 1000 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1001 if (old) 1002 return -EALREADY; 1003 1004 if (params->smps_mode != NL80211_SMPS_OFF) 1005 return -ENOTSUPP; 1006 1007 sdata->smps_mode = IEEE80211_SMPS_OFF; 1008 1009 sdata->needed_rx_chains = sdata->local->rx_chains; 1010 1011 prev_beacon_int = sdata->vif.bss_conf.beacon_int; 1012 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 1013 1014 if (params->he_cap && params->he_oper) { 1015 sdata->vif.bss_conf.he_support = true; 1016 sdata->vif.bss_conf.htc_trig_based_pkt_ext = 1017 le32_get_bits(params->he_oper->he_oper_params, 1018 IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); 1019 sdata->vif.bss_conf.frame_time_rts_th = 1020 le32_get_bits(params->he_oper->he_oper_params, 1021 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); 1022 } 1023 1024 mutex_lock(&local->mtx); 1025 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 1026 IEEE80211_CHANCTX_SHARED); 1027 if (!err) 1028 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 1029 mutex_unlock(&local->mtx); 1030 if (err) { 1031 sdata->vif.bss_conf.beacon_int = prev_beacon_int; 1032 return err; 1033 } 1034 1035 /* 1036 * Apply control port protocol, this allows us to 1037 * not encrypt dynamic WEP control frames. 1038 */ 1039 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1040 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1041 sdata->control_port_over_nl80211 = 1042 params->crypto.control_port_over_nl80211; 1043 sdata->control_port_no_preauth = 1044 params->crypto.control_port_no_preauth; 1045 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 1046 ¶ms->crypto, 1047 sdata->vif.type); 1048 1049 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1050 vlan->control_port_protocol = 1051 params->crypto.control_port_ethertype; 1052 vlan->control_port_no_encrypt = 1053 params->crypto.control_port_no_encrypt; 1054 vlan->control_port_over_nl80211 = 1055 params->crypto.control_port_over_nl80211; 1056 vlan->control_port_no_preauth = 1057 params->crypto.control_port_no_preauth; 1058 vlan->encrypt_headroom = 1059 ieee80211_cs_headroom(sdata->local, 1060 ¶ms->crypto, 1061 vlan->vif.type); 1062 } 1063 1064 sdata->vif.bss_conf.dtim_period = params->dtim_period; 1065 sdata->vif.bss_conf.enable_beacon = true; 1066 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 1067 sdata->vif.bss_conf.twt_responder = params->twt_responder; 1068 memcpy(&sdata->vif.bss_conf.he_obss_pd, ¶ms->he_obss_pd, 1069 sizeof(struct ieee80211_he_obss_pd)); 1070 memcpy(&sdata->vif.bss_conf.he_bss_color, ¶ms->he_bss_color, 1071 sizeof(struct ieee80211_he_bss_color)); 1072 1073 sdata->vif.bss_conf.ssid_len = params->ssid_len; 1074 if (params->ssid_len) 1075 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 1076 params->ssid_len); 1077 sdata->vif.bss_conf.hidden_ssid = 1078 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1079 1080 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 1081 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 1082 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 1083 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1084 if (params->p2p_opp_ps) 1085 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1086 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1087 1088 sdata->beacon_rate_set = false; 1089 if (wiphy_ext_feature_isset(local->hw.wiphy, 1090 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 1091 for (i = 0; i < NUM_NL80211_BANDS; i++) { 1092 sdata->beacon_rateidx_mask[i] = 1093 params->beacon_rate.control[i].legacy; 1094 if (sdata->beacon_rateidx_mask[i]) 1095 sdata->beacon_rate_set = true; 1096 } 1097 } 1098 1099 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); 1100 if (err < 0) { 1101 ieee80211_vif_release_channel(sdata); 1102 return err; 1103 } 1104 changed |= err; 1105 1106 err = drv_start_ap(sdata->local, sdata); 1107 if (err) { 1108 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1109 1110 if (old) 1111 kfree_rcu(old, rcu_head); 1112 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1113 ieee80211_vif_release_channel(sdata); 1114 return err; 1115 } 1116 1117 ieee80211_recalc_dtim(local, sdata); 1118 ieee80211_bss_info_change_notify(sdata, changed); 1119 1120 netif_carrier_on(dev); 1121 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1122 netif_carrier_on(vlan->dev); 1123 1124 return 0; 1125 } 1126 1127 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1128 struct cfg80211_beacon_data *params) 1129 { 1130 struct ieee80211_sub_if_data *sdata; 1131 struct beacon_data *old; 1132 int err; 1133 1134 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1135 sdata_assert_lock(sdata); 1136 1137 /* don't allow changing the beacon while CSA is in place - offset 1138 * of channel switch counter may change 1139 */ 1140 if (sdata->vif.csa_active) 1141 return -EBUSY; 1142 1143 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1144 if (!old) 1145 return -ENOENT; 1146 1147 err = ieee80211_assign_beacon(sdata, params, NULL); 1148 if (err < 0) 1149 return err; 1150 ieee80211_bss_info_change_notify(sdata, err); 1151 return 0; 1152 } 1153 1154 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1155 { 1156 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1157 struct ieee80211_sub_if_data *vlan; 1158 struct ieee80211_local *local = sdata->local; 1159 struct beacon_data *old_beacon; 1160 struct probe_resp *old_probe_resp; 1161 struct cfg80211_chan_def chandef; 1162 1163 sdata_assert_lock(sdata); 1164 1165 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1166 if (!old_beacon) 1167 return -ENOENT; 1168 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1169 1170 /* abort any running channel switch */ 1171 mutex_lock(&local->mtx); 1172 sdata->vif.csa_active = false; 1173 if (sdata->csa_block_tx) { 1174 ieee80211_wake_vif_queues(local, sdata, 1175 IEEE80211_QUEUE_STOP_REASON_CSA); 1176 sdata->csa_block_tx = false; 1177 } 1178 1179 mutex_unlock(&local->mtx); 1180 1181 kfree(sdata->u.ap.next_beacon); 1182 sdata->u.ap.next_beacon = NULL; 1183 1184 /* turn off carrier for this interface and dependent VLANs */ 1185 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1186 netif_carrier_off(vlan->dev); 1187 netif_carrier_off(dev); 1188 1189 /* remove beacon and probe response */ 1190 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1191 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1192 kfree_rcu(old_beacon, rcu_head); 1193 if (old_probe_resp) 1194 kfree_rcu(old_probe_resp, rcu_head); 1195 1196 kfree(sdata->vif.bss_conf.ftmr_params); 1197 sdata->vif.bss_conf.ftmr_params = NULL; 1198 1199 __sta_info_flush(sdata, true); 1200 ieee80211_free_keys(sdata, true); 1201 1202 sdata->vif.bss_conf.enable_beacon = false; 1203 sdata->beacon_rate_set = false; 1204 sdata->vif.bss_conf.ssid_len = 0; 1205 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1206 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1207 1208 if (sdata->wdev.cac_started) { 1209 chandef = sdata->vif.bss_conf.chandef; 1210 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1211 cfg80211_cac_event(sdata->dev, &chandef, 1212 NL80211_RADAR_CAC_ABORTED, 1213 GFP_KERNEL); 1214 } 1215 1216 drv_stop_ap(sdata->local, sdata); 1217 1218 /* free all potentially still buffered bcast frames */ 1219 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1220 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1221 1222 mutex_lock(&local->mtx); 1223 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1224 ieee80211_vif_release_channel(sdata); 1225 mutex_unlock(&local->mtx); 1226 1227 return 0; 1228 } 1229 1230 static int sta_apply_auth_flags(struct ieee80211_local *local, 1231 struct sta_info *sta, 1232 u32 mask, u32 set) 1233 { 1234 int ret; 1235 1236 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1237 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1238 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1239 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1240 if (ret) 1241 return ret; 1242 } 1243 1244 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1245 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1246 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1247 /* 1248 * When peer becomes associated, init rate control as 1249 * well. Some drivers require rate control initialized 1250 * before drv_sta_state() is called. 1251 */ 1252 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1253 rate_control_rate_init(sta); 1254 1255 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1256 if (ret) 1257 return ret; 1258 } 1259 1260 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1261 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1262 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1263 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1264 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1265 else 1266 ret = 0; 1267 if (ret) 1268 return ret; 1269 } 1270 1271 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1272 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1273 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1274 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1275 if (ret) 1276 return ret; 1277 } 1278 1279 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1280 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1281 test_sta_flag(sta, WLAN_STA_AUTH)) { 1282 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1283 if (ret) 1284 return ret; 1285 } 1286 1287 return 0; 1288 } 1289 1290 static void sta_apply_mesh_params(struct ieee80211_local *local, 1291 struct sta_info *sta, 1292 struct station_parameters *params) 1293 { 1294 #ifdef CONFIG_MAC80211_MESH 1295 struct ieee80211_sub_if_data *sdata = sta->sdata; 1296 u32 changed = 0; 1297 1298 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1299 switch (params->plink_state) { 1300 case NL80211_PLINK_ESTAB: 1301 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1302 changed = mesh_plink_inc_estab_count(sdata); 1303 sta->mesh->plink_state = params->plink_state; 1304 sta->mesh->aid = params->peer_aid; 1305 1306 ieee80211_mps_sta_status_update(sta); 1307 changed |= ieee80211_mps_set_sta_local_pm(sta, 1308 sdata->u.mesh.mshcfg.power_mode); 1309 1310 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1311 /* init at low value */ 1312 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1313 1314 break; 1315 case NL80211_PLINK_LISTEN: 1316 case NL80211_PLINK_BLOCKED: 1317 case NL80211_PLINK_OPN_SNT: 1318 case NL80211_PLINK_OPN_RCVD: 1319 case NL80211_PLINK_CNF_RCVD: 1320 case NL80211_PLINK_HOLDING: 1321 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1322 changed = mesh_plink_dec_estab_count(sdata); 1323 sta->mesh->plink_state = params->plink_state; 1324 1325 ieee80211_mps_sta_status_update(sta); 1326 changed |= ieee80211_mps_set_sta_local_pm(sta, 1327 NL80211_MESH_POWER_UNKNOWN); 1328 break; 1329 default: 1330 /* nothing */ 1331 break; 1332 } 1333 } 1334 1335 switch (params->plink_action) { 1336 case NL80211_PLINK_ACTION_NO_ACTION: 1337 /* nothing */ 1338 break; 1339 case NL80211_PLINK_ACTION_OPEN: 1340 changed |= mesh_plink_open(sta); 1341 break; 1342 case NL80211_PLINK_ACTION_BLOCK: 1343 changed |= mesh_plink_block(sta); 1344 break; 1345 } 1346 1347 if (params->local_pm) 1348 changed |= ieee80211_mps_set_sta_local_pm(sta, 1349 params->local_pm); 1350 1351 ieee80211_mbss_info_change_notify(sdata, changed); 1352 #endif 1353 } 1354 1355 static int sta_apply_parameters(struct ieee80211_local *local, 1356 struct sta_info *sta, 1357 struct station_parameters *params) 1358 { 1359 int ret = 0; 1360 struct ieee80211_supported_band *sband; 1361 struct ieee80211_sub_if_data *sdata = sta->sdata; 1362 u32 mask, set; 1363 1364 sband = ieee80211_get_sband(sdata); 1365 if (!sband) 1366 return -EINVAL; 1367 1368 mask = params->sta_flags_mask; 1369 set = params->sta_flags_set; 1370 1371 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1372 /* 1373 * In mesh mode, ASSOCIATED isn't part of the nl80211 1374 * API but must follow AUTHENTICATED for driver state. 1375 */ 1376 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1377 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1378 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1379 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1380 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1381 /* 1382 * TDLS -- everything follows authorized, but 1383 * only becoming authorized is possible, not 1384 * going back 1385 */ 1386 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1387 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1388 BIT(NL80211_STA_FLAG_ASSOCIATED); 1389 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1390 BIT(NL80211_STA_FLAG_ASSOCIATED); 1391 } 1392 } 1393 1394 if (mask & BIT(NL80211_STA_FLAG_WME) && 1395 local->hw.queues >= IEEE80211_NUM_ACS) 1396 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1397 1398 /* auth flags will be set later for TDLS, 1399 * and for unassociated stations that move to assocaited */ 1400 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1401 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1402 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1403 ret = sta_apply_auth_flags(local, sta, mask, set); 1404 if (ret) 1405 return ret; 1406 } 1407 1408 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1409 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1410 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1411 else 1412 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1413 } 1414 1415 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1416 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1417 if (set & BIT(NL80211_STA_FLAG_MFP)) 1418 set_sta_flag(sta, WLAN_STA_MFP); 1419 else 1420 clear_sta_flag(sta, WLAN_STA_MFP); 1421 } 1422 1423 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1424 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1425 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1426 else 1427 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1428 } 1429 1430 /* mark TDLS channel switch support, if the AP allows it */ 1431 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1432 !sdata->u.mgd.tdls_chan_switch_prohibited && 1433 params->ext_capab_len >= 4 && 1434 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1435 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1436 1437 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1438 !sdata->u.mgd.tdls_wider_bw_prohibited && 1439 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1440 params->ext_capab_len >= 8 && 1441 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1442 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1443 1444 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1445 sta->sta.uapsd_queues = params->uapsd_queues; 1446 sta->sta.max_sp = params->max_sp; 1447 } 1448 1449 /* The sender might not have sent the last bit, consider it to be 0 */ 1450 if (params->ext_capab_len >= 8) { 1451 u8 val = (params->ext_capab[7] & 1452 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1453 1454 /* we did get all the bits, take the MSB as well */ 1455 if (params->ext_capab_len >= 9) { 1456 u8 val_msb = params->ext_capab[8] & 1457 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1458 val_msb <<= 1; 1459 val |= val_msb; 1460 } 1461 1462 switch (val) { 1463 case 1: 1464 sta->sta.max_amsdu_subframes = 32; 1465 break; 1466 case 2: 1467 sta->sta.max_amsdu_subframes = 16; 1468 break; 1469 case 3: 1470 sta->sta.max_amsdu_subframes = 8; 1471 break; 1472 default: 1473 sta->sta.max_amsdu_subframes = 0; 1474 } 1475 } 1476 1477 /* 1478 * cfg80211 validates this (1-2007) and allows setting the AID 1479 * only when creating a new station entry 1480 */ 1481 if (params->aid) 1482 sta->sta.aid = params->aid; 1483 1484 /* 1485 * Some of the following updates would be racy if called on an 1486 * existing station, via ieee80211_change_station(). However, 1487 * all such changes are rejected by cfg80211 except for updates 1488 * changing the supported rates on an existing but not yet used 1489 * TDLS peer. 1490 */ 1491 1492 if (params->listen_interval >= 0) 1493 sta->listen_interval = params->listen_interval; 1494 1495 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) { 1496 sta->sta.txpwr.type = params->txpwr.type; 1497 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1498 sta->sta.txpwr.power = params->txpwr.power; 1499 ret = drv_sta_set_txpwr(local, sdata, sta); 1500 if (ret) 1501 return ret; 1502 } 1503 1504 if (params->supported_rates && params->supported_rates_len) { 1505 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1506 sband, params->supported_rates, 1507 params->supported_rates_len, 1508 &sta->sta.supp_rates[sband->band]); 1509 } 1510 1511 if (params->ht_capa) 1512 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1513 params->ht_capa, sta); 1514 1515 /* VHT can override some HT caps such as the A-MSDU max length */ 1516 if (params->vht_capa) 1517 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1518 params->vht_capa, sta); 1519 1520 if (params->he_capa) 1521 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1522 (void *)params->he_capa, 1523 params->he_capa_len, 1524 (void *)params->he_6ghz_capa, 1525 sta); 1526 1527 if (params->opmode_notif_used) { 1528 /* returned value is only needed for rc update, but the 1529 * rc isn't initialized here yet, so ignore it 1530 */ 1531 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1532 sband->band); 1533 } 1534 1535 if (params->support_p2p_ps >= 0) 1536 sta->sta.support_p2p_ps = params->support_p2p_ps; 1537 1538 if (ieee80211_vif_is_mesh(&sdata->vif)) 1539 sta_apply_mesh_params(local, sta, params); 1540 1541 if (params->airtime_weight) 1542 sta->airtime_weight = params->airtime_weight; 1543 1544 /* set the STA state after all sta info from usermode has been set */ 1545 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1546 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1547 ret = sta_apply_auth_flags(local, sta, mask, set); 1548 if (ret) 1549 return ret; 1550 } 1551 1552 return 0; 1553 } 1554 1555 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1556 const u8 *mac, 1557 struct station_parameters *params) 1558 { 1559 struct ieee80211_local *local = wiphy_priv(wiphy); 1560 struct sta_info *sta; 1561 struct ieee80211_sub_if_data *sdata; 1562 int err; 1563 1564 if (params->vlan) { 1565 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1566 1567 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1568 sdata->vif.type != NL80211_IFTYPE_AP) 1569 return -EINVAL; 1570 } else 1571 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1572 1573 if (ether_addr_equal(mac, sdata->vif.addr)) 1574 return -EINVAL; 1575 1576 if (!is_valid_ether_addr(mac)) 1577 return -EINVAL; 1578 1579 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 1580 sdata->vif.type == NL80211_IFTYPE_STATION && 1581 !sdata->u.mgd.associated) 1582 return -EINVAL; 1583 1584 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1585 if (!sta) 1586 return -ENOMEM; 1587 1588 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1589 sta->sta.tdls = true; 1590 1591 err = sta_apply_parameters(local, sta, params); 1592 if (err) { 1593 sta_info_free(local, sta); 1594 return err; 1595 } 1596 1597 /* 1598 * for TDLS and for unassociated station, rate control should be 1599 * initialized only when rates are known and station is marked 1600 * authorized/associated 1601 */ 1602 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1603 test_sta_flag(sta, WLAN_STA_ASSOC)) 1604 rate_control_rate_init(sta); 1605 1606 err = sta_info_insert_rcu(sta); 1607 if (err) { 1608 rcu_read_unlock(); 1609 return err; 1610 } 1611 1612 rcu_read_unlock(); 1613 1614 return 0; 1615 } 1616 1617 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1618 struct station_del_parameters *params) 1619 { 1620 struct ieee80211_sub_if_data *sdata; 1621 1622 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1623 1624 if (params->mac) 1625 return sta_info_destroy_addr_bss(sdata, params->mac); 1626 1627 sta_info_flush(sdata); 1628 return 0; 1629 } 1630 1631 static int ieee80211_change_station(struct wiphy *wiphy, 1632 struct net_device *dev, const u8 *mac, 1633 struct station_parameters *params) 1634 { 1635 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1636 struct ieee80211_local *local = wiphy_priv(wiphy); 1637 struct sta_info *sta; 1638 struct ieee80211_sub_if_data *vlansdata; 1639 enum cfg80211_station_type statype; 1640 int err; 1641 1642 mutex_lock(&local->sta_mtx); 1643 1644 sta = sta_info_get_bss(sdata, mac); 1645 if (!sta) { 1646 err = -ENOENT; 1647 goto out_err; 1648 } 1649 1650 switch (sdata->vif.type) { 1651 case NL80211_IFTYPE_MESH_POINT: 1652 if (sdata->u.mesh.user_mpm) 1653 statype = CFG80211_STA_MESH_PEER_USER; 1654 else 1655 statype = CFG80211_STA_MESH_PEER_KERNEL; 1656 break; 1657 case NL80211_IFTYPE_ADHOC: 1658 statype = CFG80211_STA_IBSS; 1659 break; 1660 case NL80211_IFTYPE_STATION: 1661 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1662 statype = CFG80211_STA_AP_STA; 1663 break; 1664 } 1665 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1666 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1667 else 1668 statype = CFG80211_STA_TDLS_PEER_SETUP; 1669 break; 1670 case NL80211_IFTYPE_AP: 1671 case NL80211_IFTYPE_AP_VLAN: 1672 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1673 statype = CFG80211_STA_AP_CLIENT; 1674 else 1675 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1676 break; 1677 default: 1678 err = -EOPNOTSUPP; 1679 goto out_err; 1680 } 1681 1682 err = cfg80211_check_station_change(wiphy, params, statype); 1683 if (err) 1684 goto out_err; 1685 1686 if (params->vlan && params->vlan != sta->sdata->dev) { 1687 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1688 1689 if (params->vlan->ieee80211_ptr->use_4addr) { 1690 if (vlansdata->u.vlan.sta) { 1691 err = -EBUSY; 1692 goto out_err; 1693 } 1694 1695 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1696 __ieee80211_check_fast_rx_iface(vlansdata); 1697 } 1698 1699 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1700 sta->sdata->u.vlan.sta) 1701 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1702 1703 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1704 ieee80211_vif_dec_num_mcast(sta->sdata); 1705 1706 sta->sdata = vlansdata; 1707 ieee80211_check_fast_xmit(sta); 1708 1709 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 1710 ieee80211_vif_inc_num_mcast(sta->sdata); 1711 cfg80211_send_layer2_update(sta->sdata->dev, 1712 sta->sta.addr); 1713 } 1714 } 1715 1716 err = sta_apply_parameters(local, sta, params); 1717 if (err) 1718 goto out_err; 1719 1720 mutex_unlock(&local->sta_mtx); 1721 1722 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1723 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1724 ieee80211_recalc_ps(local); 1725 ieee80211_recalc_ps_vif(sdata); 1726 } 1727 1728 return 0; 1729 out_err: 1730 mutex_unlock(&local->sta_mtx); 1731 return err; 1732 } 1733 1734 #ifdef CONFIG_MAC80211_MESH 1735 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1736 const u8 *dst, const u8 *next_hop) 1737 { 1738 struct ieee80211_sub_if_data *sdata; 1739 struct mesh_path *mpath; 1740 struct sta_info *sta; 1741 1742 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1743 1744 rcu_read_lock(); 1745 sta = sta_info_get(sdata, next_hop); 1746 if (!sta) { 1747 rcu_read_unlock(); 1748 return -ENOENT; 1749 } 1750 1751 mpath = mesh_path_add(sdata, dst); 1752 if (IS_ERR(mpath)) { 1753 rcu_read_unlock(); 1754 return PTR_ERR(mpath); 1755 } 1756 1757 mesh_path_fix_nexthop(mpath, sta); 1758 1759 rcu_read_unlock(); 1760 return 0; 1761 } 1762 1763 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1764 const u8 *dst) 1765 { 1766 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1767 1768 if (dst) 1769 return mesh_path_del(sdata, dst); 1770 1771 mesh_path_flush_by_iface(sdata); 1772 return 0; 1773 } 1774 1775 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1776 const u8 *dst, const u8 *next_hop) 1777 { 1778 struct ieee80211_sub_if_data *sdata; 1779 struct mesh_path *mpath; 1780 struct sta_info *sta; 1781 1782 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1783 1784 rcu_read_lock(); 1785 1786 sta = sta_info_get(sdata, next_hop); 1787 if (!sta) { 1788 rcu_read_unlock(); 1789 return -ENOENT; 1790 } 1791 1792 mpath = mesh_path_lookup(sdata, dst); 1793 if (!mpath) { 1794 rcu_read_unlock(); 1795 return -ENOENT; 1796 } 1797 1798 mesh_path_fix_nexthop(mpath, sta); 1799 1800 rcu_read_unlock(); 1801 return 0; 1802 } 1803 1804 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1805 struct mpath_info *pinfo) 1806 { 1807 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1808 1809 if (next_hop_sta) 1810 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1811 else 1812 eth_zero_addr(next_hop); 1813 1814 memset(pinfo, 0, sizeof(*pinfo)); 1815 1816 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1817 1818 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1819 MPATH_INFO_SN | 1820 MPATH_INFO_METRIC | 1821 MPATH_INFO_EXPTIME | 1822 MPATH_INFO_DISCOVERY_TIMEOUT | 1823 MPATH_INFO_DISCOVERY_RETRIES | 1824 MPATH_INFO_FLAGS | 1825 MPATH_INFO_HOP_COUNT | 1826 MPATH_INFO_PATH_CHANGE; 1827 1828 pinfo->frame_qlen = mpath->frame_queue.qlen; 1829 pinfo->sn = mpath->sn; 1830 pinfo->metric = mpath->metric; 1831 if (time_before(jiffies, mpath->exp_time)) 1832 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1833 pinfo->discovery_timeout = 1834 jiffies_to_msecs(mpath->discovery_timeout); 1835 pinfo->discovery_retries = mpath->discovery_retries; 1836 if (mpath->flags & MESH_PATH_ACTIVE) 1837 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1838 if (mpath->flags & MESH_PATH_RESOLVING) 1839 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1840 if (mpath->flags & MESH_PATH_SN_VALID) 1841 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1842 if (mpath->flags & MESH_PATH_FIXED) 1843 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1844 if (mpath->flags & MESH_PATH_RESOLVED) 1845 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1846 pinfo->hop_count = mpath->hop_count; 1847 pinfo->path_change_count = mpath->path_change_count; 1848 } 1849 1850 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1851 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1852 1853 { 1854 struct ieee80211_sub_if_data *sdata; 1855 struct mesh_path *mpath; 1856 1857 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1858 1859 rcu_read_lock(); 1860 mpath = mesh_path_lookup(sdata, dst); 1861 if (!mpath) { 1862 rcu_read_unlock(); 1863 return -ENOENT; 1864 } 1865 memcpy(dst, mpath->dst, ETH_ALEN); 1866 mpath_set_pinfo(mpath, next_hop, pinfo); 1867 rcu_read_unlock(); 1868 return 0; 1869 } 1870 1871 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1872 int idx, u8 *dst, u8 *next_hop, 1873 struct mpath_info *pinfo) 1874 { 1875 struct ieee80211_sub_if_data *sdata; 1876 struct mesh_path *mpath; 1877 1878 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1879 1880 rcu_read_lock(); 1881 mpath = mesh_path_lookup_by_idx(sdata, idx); 1882 if (!mpath) { 1883 rcu_read_unlock(); 1884 return -ENOENT; 1885 } 1886 memcpy(dst, mpath->dst, ETH_ALEN); 1887 mpath_set_pinfo(mpath, next_hop, pinfo); 1888 rcu_read_unlock(); 1889 return 0; 1890 } 1891 1892 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1893 struct mpath_info *pinfo) 1894 { 1895 memset(pinfo, 0, sizeof(*pinfo)); 1896 memcpy(mpp, mpath->mpp, ETH_ALEN); 1897 1898 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1899 } 1900 1901 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1902 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1903 1904 { 1905 struct ieee80211_sub_if_data *sdata; 1906 struct mesh_path *mpath; 1907 1908 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1909 1910 rcu_read_lock(); 1911 mpath = mpp_path_lookup(sdata, dst); 1912 if (!mpath) { 1913 rcu_read_unlock(); 1914 return -ENOENT; 1915 } 1916 memcpy(dst, mpath->dst, ETH_ALEN); 1917 mpp_set_pinfo(mpath, mpp, pinfo); 1918 rcu_read_unlock(); 1919 return 0; 1920 } 1921 1922 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1923 int idx, u8 *dst, u8 *mpp, 1924 struct mpath_info *pinfo) 1925 { 1926 struct ieee80211_sub_if_data *sdata; 1927 struct mesh_path *mpath; 1928 1929 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1930 1931 rcu_read_lock(); 1932 mpath = mpp_path_lookup_by_idx(sdata, idx); 1933 if (!mpath) { 1934 rcu_read_unlock(); 1935 return -ENOENT; 1936 } 1937 memcpy(dst, mpath->dst, ETH_ALEN); 1938 mpp_set_pinfo(mpath, mpp, pinfo); 1939 rcu_read_unlock(); 1940 return 0; 1941 } 1942 1943 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1944 struct net_device *dev, 1945 struct mesh_config *conf) 1946 { 1947 struct ieee80211_sub_if_data *sdata; 1948 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1949 1950 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1951 return 0; 1952 } 1953 1954 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1955 { 1956 return (mask >> (parm-1)) & 0x1; 1957 } 1958 1959 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1960 const struct mesh_setup *setup) 1961 { 1962 u8 *new_ie; 1963 const u8 *old_ie; 1964 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1965 struct ieee80211_sub_if_data, u.mesh); 1966 int i; 1967 1968 /* allocate information elements */ 1969 new_ie = NULL; 1970 old_ie = ifmsh->ie; 1971 1972 if (setup->ie_len) { 1973 new_ie = kmemdup(setup->ie, setup->ie_len, 1974 GFP_KERNEL); 1975 if (!new_ie) 1976 return -ENOMEM; 1977 } 1978 ifmsh->ie_len = setup->ie_len; 1979 ifmsh->ie = new_ie; 1980 kfree(old_ie); 1981 1982 /* now copy the rest of the setup parameters */ 1983 ifmsh->mesh_id_len = setup->mesh_id_len; 1984 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1985 ifmsh->mesh_sp_id = setup->sync_method; 1986 ifmsh->mesh_pp_id = setup->path_sel_proto; 1987 ifmsh->mesh_pm_id = setup->path_metric; 1988 ifmsh->user_mpm = setup->user_mpm; 1989 ifmsh->mesh_auth_id = setup->auth_id; 1990 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1991 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 1992 if (setup->is_authenticated) 1993 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1994 if (setup->is_secure) 1995 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1996 1997 /* mcast rate setting in Mesh Node */ 1998 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1999 sizeof(setup->mcast_rate)); 2000 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 2001 2002 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 2003 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 2004 2005 sdata->beacon_rate_set = false; 2006 if (wiphy_ext_feature_isset(sdata->local->hw.wiphy, 2007 NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) { 2008 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2009 sdata->beacon_rateidx_mask[i] = 2010 setup->beacon_rate.control[i].legacy; 2011 if (sdata->beacon_rateidx_mask[i]) 2012 sdata->beacon_rate_set = true; 2013 } 2014 } 2015 2016 return 0; 2017 } 2018 2019 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 2020 struct net_device *dev, u32 mask, 2021 const struct mesh_config *nconf) 2022 { 2023 struct mesh_config *conf; 2024 struct ieee80211_sub_if_data *sdata; 2025 struct ieee80211_if_mesh *ifmsh; 2026 2027 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2028 ifmsh = &sdata->u.mesh; 2029 2030 /* Set the config options which we are interested in setting */ 2031 conf = &(sdata->u.mesh.mshcfg); 2032 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2033 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2034 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2035 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2036 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2037 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2038 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2039 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2040 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2041 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2042 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2043 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2044 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2045 conf->element_ttl = nconf->element_ttl; 2046 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2047 if (ifmsh->user_mpm) 2048 return -EBUSY; 2049 conf->auto_open_plinks = nconf->auto_open_plinks; 2050 } 2051 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2052 conf->dot11MeshNbrOffsetMaxNeighbor = 2053 nconf->dot11MeshNbrOffsetMaxNeighbor; 2054 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2055 conf->dot11MeshHWMPmaxPREQretries = 2056 nconf->dot11MeshHWMPmaxPREQretries; 2057 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2058 conf->path_refresh_time = nconf->path_refresh_time; 2059 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2060 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2061 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2062 conf->dot11MeshHWMPactivePathTimeout = 2063 nconf->dot11MeshHWMPactivePathTimeout; 2064 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2065 conf->dot11MeshHWMPpreqMinInterval = 2066 nconf->dot11MeshHWMPpreqMinInterval; 2067 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2068 conf->dot11MeshHWMPperrMinInterval = 2069 nconf->dot11MeshHWMPperrMinInterval; 2070 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2071 mask)) 2072 conf->dot11MeshHWMPnetDiameterTraversalTime = 2073 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2074 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2075 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2076 ieee80211_mesh_root_setup(ifmsh); 2077 } 2078 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2079 /* our current gate announcement implementation rides on root 2080 * announcements, so require this ifmsh to also be a root node 2081 * */ 2082 if (nconf->dot11MeshGateAnnouncementProtocol && 2083 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2084 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2085 ieee80211_mesh_root_setup(ifmsh); 2086 } 2087 conf->dot11MeshGateAnnouncementProtocol = 2088 nconf->dot11MeshGateAnnouncementProtocol; 2089 } 2090 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2091 conf->dot11MeshHWMPRannInterval = 2092 nconf->dot11MeshHWMPRannInterval; 2093 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2094 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2095 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2096 /* our RSSI threshold implementation is supported only for 2097 * devices that report signal in dBm. 2098 */ 2099 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2100 return -ENOTSUPP; 2101 conf->rssi_threshold = nconf->rssi_threshold; 2102 } 2103 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2104 conf->ht_opmode = nconf->ht_opmode; 2105 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2106 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2107 } 2108 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2109 conf->dot11MeshHWMPactivePathToRootTimeout = 2110 nconf->dot11MeshHWMPactivePathToRootTimeout; 2111 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2112 conf->dot11MeshHWMProotInterval = 2113 nconf->dot11MeshHWMProotInterval; 2114 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2115 conf->dot11MeshHWMPconfirmationInterval = 2116 nconf->dot11MeshHWMPconfirmationInterval; 2117 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2118 conf->power_mode = nconf->power_mode; 2119 ieee80211_mps_local_status_update(sdata); 2120 } 2121 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2122 conf->dot11MeshAwakeWindowDuration = 2123 nconf->dot11MeshAwakeWindowDuration; 2124 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2125 conf->plink_timeout = nconf->plink_timeout; 2126 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2127 conf->dot11MeshConnectedToMeshGate = 2128 nconf->dot11MeshConnectedToMeshGate; 2129 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2130 return 0; 2131 } 2132 2133 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2134 const struct mesh_config *conf, 2135 const struct mesh_setup *setup) 2136 { 2137 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2138 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2139 int err; 2140 2141 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2142 err = copy_mesh_setup(ifmsh, setup); 2143 if (err) 2144 return err; 2145 2146 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2147 2148 /* can mesh use other SMPS modes? */ 2149 sdata->smps_mode = IEEE80211_SMPS_OFF; 2150 sdata->needed_rx_chains = sdata->local->rx_chains; 2151 2152 mutex_lock(&sdata->local->mtx); 2153 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2154 IEEE80211_CHANCTX_SHARED); 2155 mutex_unlock(&sdata->local->mtx); 2156 if (err) 2157 return err; 2158 2159 return ieee80211_start_mesh(sdata); 2160 } 2161 2162 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2163 { 2164 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2165 2166 ieee80211_stop_mesh(sdata); 2167 mutex_lock(&sdata->local->mtx); 2168 ieee80211_vif_release_channel(sdata); 2169 mutex_unlock(&sdata->local->mtx); 2170 2171 return 0; 2172 } 2173 #endif 2174 2175 static int ieee80211_change_bss(struct wiphy *wiphy, 2176 struct net_device *dev, 2177 struct bss_parameters *params) 2178 { 2179 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2180 struct ieee80211_supported_band *sband; 2181 u32 changed = 0; 2182 2183 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2184 return -ENOENT; 2185 2186 sband = ieee80211_get_sband(sdata); 2187 if (!sband) 2188 return -EINVAL; 2189 2190 if (params->use_cts_prot >= 0) { 2191 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2192 changed |= BSS_CHANGED_ERP_CTS_PROT; 2193 } 2194 if (params->use_short_preamble >= 0) { 2195 sdata->vif.bss_conf.use_short_preamble = 2196 params->use_short_preamble; 2197 changed |= BSS_CHANGED_ERP_PREAMBLE; 2198 } 2199 2200 if (!sdata->vif.bss_conf.use_short_slot && 2201 (sband->band == NL80211_BAND_5GHZ || 2202 sband->band == NL80211_BAND_6GHZ)) { 2203 sdata->vif.bss_conf.use_short_slot = true; 2204 changed |= BSS_CHANGED_ERP_SLOT; 2205 } 2206 2207 if (params->use_short_slot_time >= 0) { 2208 sdata->vif.bss_conf.use_short_slot = 2209 params->use_short_slot_time; 2210 changed |= BSS_CHANGED_ERP_SLOT; 2211 } 2212 2213 if (params->basic_rates) { 2214 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2215 wiphy->bands[sband->band], 2216 params->basic_rates, 2217 params->basic_rates_len, 2218 &sdata->vif.bss_conf.basic_rates); 2219 changed |= BSS_CHANGED_BASIC_RATES; 2220 ieee80211_check_rate_mask(sdata); 2221 } 2222 2223 if (params->ap_isolate >= 0) { 2224 if (params->ap_isolate) 2225 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2226 else 2227 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2228 ieee80211_check_fast_rx_iface(sdata); 2229 } 2230 2231 if (params->ht_opmode >= 0) { 2232 sdata->vif.bss_conf.ht_operation_mode = 2233 (u16) params->ht_opmode; 2234 changed |= BSS_CHANGED_HT; 2235 } 2236 2237 if (params->p2p_ctwindow >= 0) { 2238 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2239 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2240 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2241 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2242 changed |= BSS_CHANGED_P2P_PS; 2243 } 2244 2245 if (params->p2p_opp_ps > 0) { 2246 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2247 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2248 changed |= BSS_CHANGED_P2P_PS; 2249 } else if (params->p2p_opp_ps == 0) { 2250 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2251 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2252 changed |= BSS_CHANGED_P2P_PS; 2253 } 2254 2255 ieee80211_bss_info_change_notify(sdata, changed); 2256 2257 return 0; 2258 } 2259 2260 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2261 struct net_device *dev, 2262 struct ieee80211_txq_params *params) 2263 { 2264 struct ieee80211_local *local = wiphy_priv(wiphy); 2265 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2266 struct ieee80211_tx_queue_params p; 2267 2268 if (!local->ops->conf_tx) 2269 return -EOPNOTSUPP; 2270 2271 if (local->hw.queues < IEEE80211_NUM_ACS) 2272 return -EOPNOTSUPP; 2273 2274 memset(&p, 0, sizeof(p)); 2275 p.aifs = params->aifs; 2276 p.cw_max = params->cwmax; 2277 p.cw_min = params->cwmin; 2278 p.txop = params->txop; 2279 2280 /* 2281 * Setting tx queue params disables u-apsd because it's only 2282 * called in master mode. 2283 */ 2284 p.uapsd = false; 2285 2286 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2287 2288 sdata->tx_conf[params->ac] = p; 2289 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2290 wiphy_debug(local->hw.wiphy, 2291 "failed to set TX queue parameters for AC %d\n", 2292 params->ac); 2293 return -EINVAL; 2294 } 2295 2296 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2297 2298 return 0; 2299 } 2300 2301 #ifdef CONFIG_PM 2302 static int ieee80211_suspend(struct wiphy *wiphy, 2303 struct cfg80211_wowlan *wowlan) 2304 { 2305 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2306 } 2307 2308 static int ieee80211_resume(struct wiphy *wiphy) 2309 { 2310 return __ieee80211_resume(wiphy_priv(wiphy)); 2311 } 2312 #else 2313 #define ieee80211_suspend NULL 2314 #define ieee80211_resume NULL 2315 #endif 2316 2317 static int ieee80211_scan(struct wiphy *wiphy, 2318 struct cfg80211_scan_request *req) 2319 { 2320 struct ieee80211_sub_if_data *sdata; 2321 2322 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2323 2324 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2325 case NL80211_IFTYPE_STATION: 2326 case NL80211_IFTYPE_ADHOC: 2327 case NL80211_IFTYPE_MESH_POINT: 2328 case NL80211_IFTYPE_P2P_CLIENT: 2329 case NL80211_IFTYPE_P2P_DEVICE: 2330 break; 2331 case NL80211_IFTYPE_P2P_GO: 2332 if (sdata->local->ops->hw_scan) 2333 break; 2334 /* 2335 * FIXME: implement NoA while scanning in software, 2336 * for now fall through to allow scanning only when 2337 * beaconing hasn't been configured yet 2338 */ 2339 /* fall through */ 2340 case NL80211_IFTYPE_AP: 2341 /* 2342 * If the scan has been forced (and the driver supports 2343 * forcing), don't care about being beaconing already. 2344 * This will create problems to the attached stations (e.g. all 2345 * the frames sent while scanning on other channel will be 2346 * lost) 2347 */ 2348 if (sdata->u.ap.beacon && 2349 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2350 !(req->flags & NL80211_SCAN_FLAG_AP))) 2351 return -EOPNOTSUPP; 2352 break; 2353 case NL80211_IFTYPE_NAN: 2354 default: 2355 return -EOPNOTSUPP; 2356 } 2357 2358 return ieee80211_request_scan(sdata, req); 2359 } 2360 2361 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2362 { 2363 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2364 } 2365 2366 static int 2367 ieee80211_sched_scan_start(struct wiphy *wiphy, 2368 struct net_device *dev, 2369 struct cfg80211_sched_scan_request *req) 2370 { 2371 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2372 2373 if (!sdata->local->ops->sched_scan_start) 2374 return -EOPNOTSUPP; 2375 2376 return ieee80211_request_sched_scan_start(sdata, req); 2377 } 2378 2379 static int 2380 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2381 u64 reqid) 2382 { 2383 struct ieee80211_local *local = wiphy_priv(wiphy); 2384 2385 if (!local->ops->sched_scan_stop) 2386 return -EOPNOTSUPP; 2387 2388 return ieee80211_request_sched_scan_stop(local); 2389 } 2390 2391 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2392 struct cfg80211_auth_request *req) 2393 { 2394 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2395 } 2396 2397 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2398 struct cfg80211_assoc_request *req) 2399 { 2400 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2401 } 2402 2403 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2404 struct cfg80211_deauth_request *req) 2405 { 2406 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2407 } 2408 2409 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2410 struct cfg80211_disassoc_request *req) 2411 { 2412 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2413 } 2414 2415 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2416 struct cfg80211_ibss_params *params) 2417 { 2418 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2419 } 2420 2421 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2422 { 2423 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2424 } 2425 2426 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2427 struct ocb_setup *setup) 2428 { 2429 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2430 } 2431 2432 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2433 { 2434 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2435 } 2436 2437 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2438 int rate[NUM_NL80211_BANDS]) 2439 { 2440 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2441 2442 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2443 sizeof(int) * NUM_NL80211_BANDS); 2444 2445 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2446 2447 return 0; 2448 } 2449 2450 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2451 { 2452 struct ieee80211_local *local = wiphy_priv(wiphy); 2453 int err; 2454 2455 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2456 ieee80211_check_fast_xmit_all(local); 2457 2458 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2459 2460 if (err) { 2461 ieee80211_check_fast_xmit_all(local); 2462 return err; 2463 } 2464 } 2465 2466 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2467 (changed & WIPHY_PARAM_DYN_ACK)) { 2468 s16 coverage_class; 2469 2470 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2471 wiphy->coverage_class : -1; 2472 err = drv_set_coverage_class(local, coverage_class); 2473 2474 if (err) 2475 return err; 2476 } 2477 2478 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2479 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2480 2481 if (err) 2482 return err; 2483 } 2484 2485 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2486 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2487 return -EINVAL; 2488 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2489 } 2490 if (changed & WIPHY_PARAM_RETRY_LONG) { 2491 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2492 return -EINVAL; 2493 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2494 } 2495 if (changed & 2496 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2497 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2498 2499 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2500 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2501 WIPHY_PARAM_TXQ_QUANTUM)) 2502 ieee80211_txq_set_params(local); 2503 2504 return 0; 2505 } 2506 2507 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2508 struct wireless_dev *wdev, 2509 enum nl80211_tx_power_setting type, int mbm) 2510 { 2511 struct ieee80211_local *local = wiphy_priv(wiphy); 2512 struct ieee80211_sub_if_data *sdata; 2513 enum nl80211_tx_power_setting txp_type = type; 2514 bool update_txp_type = false; 2515 bool has_monitor = false; 2516 2517 if (wdev) { 2518 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2519 2520 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2521 sdata = rtnl_dereference(local->monitor_sdata); 2522 if (!sdata) 2523 return -EOPNOTSUPP; 2524 } 2525 2526 switch (type) { 2527 case NL80211_TX_POWER_AUTOMATIC: 2528 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2529 txp_type = NL80211_TX_POWER_LIMITED; 2530 break; 2531 case NL80211_TX_POWER_LIMITED: 2532 case NL80211_TX_POWER_FIXED: 2533 if (mbm < 0 || (mbm % 100)) 2534 return -EOPNOTSUPP; 2535 sdata->user_power_level = MBM_TO_DBM(mbm); 2536 break; 2537 } 2538 2539 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2540 update_txp_type = true; 2541 sdata->vif.bss_conf.txpower_type = txp_type; 2542 } 2543 2544 ieee80211_recalc_txpower(sdata, update_txp_type); 2545 2546 return 0; 2547 } 2548 2549 switch (type) { 2550 case NL80211_TX_POWER_AUTOMATIC: 2551 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2552 txp_type = NL80211_TX_POWER_LIMITED; 2553 break; 2554 case NL80211_TX_POWER_LIMITED: 2555 case NL80211_TX_POWER_FIXED: 2556 if (mbm < 0 || (mbm % 100)) 2557 return -EOPNOTSUPP; 2558 local->user_power_level = MBM_TO_DBM(mbm); 2559 break; 2560 } 2561 2562 mutex_lock(&local->iflist_mtx); 2563 list_for_each_entry(sdata, &local->interfaces, list) { 2564 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2565 has_monitor = true; 2566 continue; 2567 } 2568 sdata->user_power_level = local->user_power_level; 2569 if (txp_type != sdata->vif.bss_conf.txpower_type) 2570 update_txp_type = true; 2571 sdata->vif.bss_conf.txpower_type = txp_type; 2572 } 2573 list_for_each_entry(sdata, &local->interfaces, list) { 2574 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2575 continue; 2576 ieee80211_recalc_txpower(sdata, update_txp_type); 2577 } 2578 mutex_unlock(&local->iflist_mtx); 2579 2580 if (has_monitor) { 2581 sdata = rtnl_dereference(local->monitor_sdata); 2582 if (sdata) { 2583 sdata->user_power_level = local->user_power_level; 2584 if (txp_type != sdata->vif.bss_conf.txpower_type) 2585 update_txp_type = true; 2586 sdata->vif.bss_conf.txpower_type = txp_type; 2587 2588 ieee80211_recalc_txpower(sdata, update_txp_type); 2589 } 2590 } 2591 2592 return 0; 2593 } 2594 2595 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2596 struct wireless_dev *wdev, 2597 int *dbm) 2598 { 2599 struct ieee80211_local *local = wiphy_priv(wiphy); 2600 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2601 2602 if (local->ops->get_txpower) 2603 return drv_get_txpower(local, sdata, dbm); 2604 2605 if (!local->use_chanctx) 2606 *dbm = local->hw.conf.power_level; 2607 else 2608 *dbm = sdata->vif.bss_conf.txpower; 2609 2610 return 0; 2611 } 2612 2613 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2614 const u8 *addr) 2615 { 2616 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2617 2618 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2619 2620 return 0; 2621 } 2622 2623 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2624 { 2625 struct ieee80211_local *local = wiphy_priv(wiphy); 2626 2627 drv_rfkill_poll(local); 2628 } 2629 2630 #ifdef CONFIG_NL80211_TESTMODE 2631 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2632 struct wireless_dev *wdev, 2633 void *data, int len) 2634 { 2635 struct ieee80211_local *local = wiphy_priv(wiphy); 2636 struct ieee80211_vif *vif = NULL; 2637 2638 if (!local->ops->testmode_cmd) 2639 return -EOPNOTSUPP; 2640 2641 if (wdev) { 2642 struct ieee80211_sub_if_data *sdata; 2643 2644 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2645 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2646 vif = &sdata->vif; 2647 } 2648 2649 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2650 } 2651 2652 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2653 struct sk_buff *skb, 2654 struct netlink_callback *cb, 2655 void *data, int len) 2656 { 2657 struct ieee80211_local *local = wiphy_priv(wiphy); 2658 2659 if (!local->ops->testmode_dump) 2660 return -EOPNOTSUPP; 2661 2662 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2663 } 2664 #endif 2665 2666 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2667 enum ieee80211_smps_mode smps_mode) 2668 { 2669 const u8 *ap; 2670 enum ieee80211_smps_mode old_req; 2671 int err; 2672 struct sta_info *sta; 2673 bool tdls_peer_found = false; 2674 2675 lockdep_assert_held(&sdata->wdev.mtx); 2676 2677 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2678 return -EINVAL; 2679 2680 old_req = sdata->u.mgd.req_smps; 2681 sdata->u.mgd.req_smps = smps_mode; 2682 2683 if (old_req == smps_mode && 2684 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2685 return 0; 2686 2687 /* 2688 * If not associated, or current association is not an HT 2689 * association, there's no need to do anything, just store 2690 * the new value until we associate. 2691 */ 2692 if (!sdata->u.mgd.associated || 2693 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2694 return 0; 2695 2696 ap = sdata->u.mgd.associated->bssid; 2697 2698 rcu_read_lock(); 2699 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2700 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2701 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2702 continue; 2703 2704 tdls_peer_found = true; 2705 break; 2706 } 2707 rcu_read_unlock(); 2708 2709 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2710 if (tdls_peer_found || !sdata->u.mgd.powersave) 2711 smps_mode = IEEE80211_SMPS_OFF; 2712 else 2713 smps_mode = IEEE80211_SMPS_DYNAMIC; 2714 } 2715 2716 /* send SM PS frame to AP */ 2717 err = ieee80211_send_smps_action(sdata, smps_mode, 2718 ap, ap); 2719 if (err) 2720 sdata->u.mgd.req_smps = old_req; 2721 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2722 ieee80211_teardown_tdls_peers(sdata); 2723 2724 return err; 2725 } 2726 2727 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2728 bool enabled, int timeout) 2729 { 2730 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2731 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2732 2733 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2734 return -EOPNOTSUPP; 2735 2736 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2737 return -EOPNOTSUPP; 2738 2739 if (enabled == sdata->u.mgd.powersave && 2740 timeout == local->dynamic_ps_forced_timeout) 2741 return 0; 2742 2743 sdata->u.mgd.powersave = enabled; 2744 local->dynamic_ps_forced_timeout = timeout; 2745 2746 /* no change, but if automatic follow powersave */ 2747 sdata_lock(sdata); 2748 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2749 sdata_unlock(sdata); 2750 2751 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2752 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2753 2754 ieee80211_recalc_ps(local); 2755 ieee80211_recalc_ps_vif(sdata); 2756 ieee80211_check_fast_rx_iface(sdata); 2757 2758 return 0; 2759 } 2760 2761 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2762 struct net_device *dev, 2763 s32 rssi_thold, u32 rssi_hyst) 2764 { 2765 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2766 struct ieee80211_vif *vif = &sdata->vif; 2767 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2768 2769 if (rssi_thold == bss_conf->cqm_rssi_thold && 2770 rssi_hyst == bss_conf->cqm_rssi_hyst) 2771 return 0; 2772 2773 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2774 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2775 return -EOPNOTSUPP; 2776 2777 bss_conf->cqm_rssi_thold = rssi_thold; 2778 bss_conf->cqm_rssi_hyst = rssi_hyst; 2779 bss_conf->cqm_rssi_low = 0; 2780 bss_conf->cqm_rssi_high = 0; 2781 sdata->u.mgd.last_cqm_event_signal = 0; 2782 2783 /* tell the driver upon association, unless already associated */ 2784 if (sdata->u.mgd.associated && 2785 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2786 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2787 2788 return 0; 2789 } 2790 2791 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2792 struct net_device *dev, 2793 s32 rssi_low, s32 rssi_high) 2794 { 2795 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2796 struct ieee80211_vif *vif = &sdata->vif; 2797 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2798 2799 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2800 return -EOPNOTSUPP; 2801 2802 bss_conf->cqm_rssi_low = rssi_low; 2803 bss_conf->cqm_rssi_high = rssi_high; 2804 bss_conf->cqm_rssi_thold = 0; 2805 bss_conf->cqm_rssi_hyst = 0; 2806 sdata->u.mgd.last_cqm_event_signal = 0; 2807 2808 /* tell the driver upon association, unless already associated */ 2809 if (sdata->u.mgd.associated && 2810 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2811 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2812 2813 return 0; 2814 } 2815 2816 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2817 struct net_device *dev, 2818 const u8 *addr, 2819 const struct cfg80211_bitrate_mask *mask) 2820 { 2821 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2822 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2823 int i, ret; 2824 2825 if (!ieee80211_sdata_running(sdata)) 2826 return -ENETDOWN; 2827 2828 /* 2829 * If active validate the setting and reject it if it doesn't leave 2830 * at least one basic rate usable, since we really have to be able 2831 * to send something, and if we're an AP we have to be able to do 2832 * so at a basic rate so that all clients can receive it. 2833 */ 2834 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2835 sdata->vif.bss_conf.chandef.chan) { 2836 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2837 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2838 2839 if (!(mask->control[band].legacy & basic_rates)) 2840 return -EINVAL; 2841 } 2842 2843 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2844 ret = drv_set_bitrate_mask(local, sdata, mask); 2845 if (ret) 2846 return ret; 2847 } 2848 2849 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2850 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2851 int j; 2852 2853 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2854 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2855 sizeof(mask->control[i].ht_mcs)); 2856 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2857 mask->control[i].vht_mcs, 2858 sizeof(mask->control[i].vht_mcs)); 2859 2860 sdata->rc_has_mcs_mask[i] = false; 2861 sdata->rc_has_vht_mcs_mask[i] = false; 2862 if (!sband) 2863 continue; 2864 2865 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2866 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2867 sdata->rc_has_mcs_mask[i] = true; 2868 break; 2869 } 2870 } 2871 2872 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2873 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2874 sdata->rc_has_vht_mcs_mask[i] = true; 2875 break; 2876 } 2877 } 2878 } 2879 2880 return 0; 2881 } 2882 2883 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2884 struct net_device *dev, 2885 struct cfg80211_chan_def *chandef, 2886 u32 cac_time_ms) 2887 { 2888 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2889 struct ieee80211_local *local = sdata->local; 2890 int err; 2891 2892 mutex_lock(&local->mtx); 2893 if (!list_empty(&local->roc_list) || local->scanning) { 2894 err = -EBUSY; 2895 goto out_unlock; 2896 } 2897 2898 /* whatever, but channel contexts should not complain about that one */ 2899 sdata->smps_mode = IEEE80211_SMPS_OFF; 2900 sdata->needed_rx_chains = local->rx_chains; 2901 2902 err = ieee80211_vif_use_channel(sdata, chandef, 2903 IEEE80211_CHANCTX_SHARED); 2904 if (err) 2905 goto out_unlock; 2906 2907 ieee80211_queue_delayed_work(&sdata->local->hw, 2908 &sdata->dfs_cac_timer_work, 2909 msecs_to_jiffies(cac_time_ms)); 2910 2911 out_unlock: 2912 mutex_unlock(&local->mtx); 2913 return err; 2914 } 2915 2916 static void ieee80211_end_cac(struct wiphy *wiphy, 2917 struct net_device *dev) 2918 { 2919 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2920 struct ieee80211_local *local = sdata->local; 2921 2922 mutex_lock(&local->mtx); 2923 list_for_each_entry(sdata, &local->interfaces, list) { 2924 /* it might be waiting for the local->mtx, but then 2925 * by the time it gets it, sdata->wdev.cac_started 2926 * will no longer be true 2927 */ 2928 cancel_delayed_work(&sdata->dfs_cac_timer_work); 2929 2930 if (sdata->wdev.cac_started) { 2931 ieee80211_vif_release_channel(sdata); 2932 sdata->wdev.cac_started = false; 2933 } 2934 } 2935 mutex_unlock(&local->mtx); 2936 } 2937 2938 static struct cfg80211_beacon_data * 2939 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2940 { 2941 struct cfg80211_beacon_data *new_beacon; 2942 u8 *pos; 2943 int len; 2944 2945 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2946 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2947 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 2948 2949 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2950 if (!new_beacon) 2951 return NULL; 2952 2953 pos = (u8 *)(new_beacon + 1); 2954 if (beacon->head_len) { 2955 new_beacon->head_len = beacon->head_len; 2956 new_beacon->head = pos; 2957 memcpy(pos, beacon->head, beacon->head_len); 2958 pos += beacon->head_len; 2959 } 2960 if (beacon->tail_len) { 2961 new_beacon->tail_len = beacon->tail_len; 2962 new_beacon->tail = pos; 2963 memcpy(pos, beacon->tail, beacon->tail_len); 2964 pos += beacon->tail_len; 2965 } 2966 if (beacon->beacon_ies_len) { 2967 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2968 new_beacon->beacon_ies = pos; 2969 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2970 pos += beacon->beacon_ies_len; 2971 } 2972 if (beacon->proberesp_ies_len) { 2973 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2974 new_beacon->proberesp_ies = pos; 2975 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2976 pos += beacon->proberesp_ies_len; 2977 } 2978 if (beacon->assocresp_ies_len) { 2979 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2980 new_beacon->assocresp_ies = pos; 2981 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2982 pos += beacon->assocresp_ies_len; 2983 } 2984 if (beacon->probe_resp_len) { 2985 new_beacon->probe_resp_len = beacon->probe_resp_len; 2986 new_beacon->probe_resp = pos; 2987 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 2988 pos += beacon->probe_resp_len; 2989 } 2990 2991 /* might copy -1, meaning no changes requested */ 2992 new_beacon->ftm_responder = beacon->ftm_responder; 2993 if (beacon->lci) { 2994 new_beacon->lci_len = beacon->lci_len; 2995 new_beacon->lci = pos; 2996 memcpy(pos, beacon->lci, beacon->lci_len); 2997 pos += beacon->lci_len; 2998 } 2999 if (beacon->civicloc) { 3000 new_beacon->civicloc_len = beacon->civicloc_len; 3001 new_beacon->civicloc = pos; 3002 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3003 pos += beacon->civicloc_len; 3004 } 3005 3006 return new_beacon; 3007 } 3008 3009 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3010 { 3011 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3012 3013 ieee80211_queue_work(&sdata->local->hw, 3014 &sdata->csa_finalize_work); 3015 } 3016 EXPORT_SYMBOL(ieee80211_csa_finish); 3017 3018 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3019 u32 *changed) 3020 { 3021 int err; 3022 3023 switch (sdata->vif.type) { 3024 case NL80211_IFTYPE_AP: 3025 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 3026 NULL); 3027 kfree(sdata->u.ap.next_beacon); 3028 sdata->u.ap.next_beacon = NULL; 3029 3030 if (err < 0) 3031 return err; 3032 *changed |= err; 3033 break; 3034 case NL80211_IFTYPE_ADHOC: 3035 err = ieee80211_ibss_finish_csa(sdata); 3036 if (err < 0) 3037 return err; 3038 *changed |= err; 3039 break; 3040 #ifdef CONFIG_MAC80211_MESH 3041 case NL80211_IFTYPE_MESH_POINT: 3042 err = ieee80211_mesh_finish_csa(sdata); 3043 if (err < 0) 3044 return err; 3045 *changed |= err; 3046 break; 3047 #endif 3048 default: 3049 WARN_ON(1); 3050 return -EINVAL; 3051 } 3052 3053 return 0; 3054 } 3055 3056 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3057 { 3058 struct ieee80211_local *local = sdata->local; 3059 u32 changed = 0; 3060 int err; 3061 3062 sdata_assert_lock(sdata); 3063 lockdep_assert_held(&local->mtx); 3064 lockdep_assert_held(&local->chanctx_mtx); 3065 3066 /* 3067 * using reservation isn't immediate as it may be deferred until later 3068 * with multi-vif. once reservation is complete it will re-schedule the 3069 * work with no reserved_chanctx so verify chandef to check if it 3070 * completed successfully 3071 */ 3072 3073 if (sdata->reserved_chanctx) { 3074 /* 3075 * with multi-vif csa driver may call ieee80211_csa_finish() 3076 * many times while waiting for other interfaces to use their 3077 * reservations 3078 */ 3079 if (sdata->reserved_ready) 3080 return 0; 3081 3082 return ieee80211_vif_use_reserved_context(sdata); 3083 } 3084 3085 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3086 &sdata->csa_chandef)) 3087 return -EINVAL; 3088 3089 sdata->vif.csa_active = false; 3090 3091 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3092 if (err) 3093 return err; 3094 3095 ieee80211_bss_info_change_notify(sdata, changed); 3096 3097 if (sdata->csa_block_tx) { 3098 ieee80211_wake_vif_queues(local, sdata, 3099 IEEE80211_QUEUE_STOP_REASON_CSA); 3100 sdata->csa_block_tx = false; 3101 } 3102 3103 err = drv_post_channel_switch(sdata); 3104 if (err) 3105 return err; 3106 3107 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3108 3109 return 0; 3110 } 3111 3112 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3113 { 3114 if (__ieee80211_csa_finalize(sdata)) { 3115 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3116 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3117 GFP_KERNEL); 3118 } 3119 } 3120 3121 void ieee80211_csa_finalize_work(struct work_struct *work) 3122 { 3123 struct ieee80211_sub_if_data *sdata = 3124 container_of(work, struct ieee80211_sub_if_data, 3125 csa_finalize_work); 3126 struct ieee80211_local *local = sdata->local; 3127 3128 sdata_lock(sdata); 3129 mutex_lock(&local->mtx); 3130 mutex_lock(&local->chanctx_mtx); 3131 3132 /* AP might have been stopped while waiting for the lock. */ 3133 if (!sdata->vif.csa_active) 3134 goto unlock; 3135 3136 if (!ieee80211_sdata_running(sdata)) 3137 goto unlock; 3138 3139 ieee80211_csa_finalize(sdata); 3140 3141 unlock: 3142 mutex_unlock(&local->chanctx_mtx); 3143 mutex_unlock(&local->mtx); 3144 sdata_unlock(sdata); 3145 } 3146 3147 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3148 struct cfg80211_csa_settings *params, 3149 u32 *changed) 3150 { 3151 struct ieee80211_csa_settings csa = {}; 3152 int err; 3153 3154 switch (sdata->vif.type) { 3155 case NL80211_IFTYPE_AP: 3156 sdata->u.ap.next_beacon = 3157 cfg80211_beacon_dup(¶ms->beacon_after); 3158 if (!sdata->u.ap.next_beacon) 3159 return -ENOMEM; 3160 3161 /* 3162 * With a count of 0, we don't have to wait for any 3163 * TBTT before switching, so complete the CSA 3164 * immediately. In theory, with a count == 1 we 3165 * should delay the switch until just before the next 3166 * TBTT, but that would complicate things so we switch 3167 * immediately too. If we would delay the switch 3168 * until the next TBTT, we would have to set the probe 3169 * response here. 3170 * 3171 * TODO: A channel switch with count <= 1 without 3172 * sending a CSA action frame is kind of useless, 3173 * because the clients won't know we're changing 3174 * channels. The action frame must be implemented 3175 * either here or in the userspace. 3176 */ 3177 if (params->count <= 1) 3178 break; 3179 3180 if ((params->n_counter_offsets_beacon > 3181 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3182 (params->n_counter_offsets_presp > 3183 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3184 return -EINVAL; 3185 3186 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3187 csa.counter_offsets_presp = params->counter_offsets_presp; 3188 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3189 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3190 csa.count = params->count; 3191 3192 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3193 if (err < 0) { 3194 kfree(sdata->u.ap.next_beacon); 3195 return err; 3196 } 3197 *changed |= err; 3198 3199 break; 3200 case NL80211_IFTYPE_ADHOC: 3201 if (!sdata->vif.bss_conf.ibss_joined) 3202 return -EINVAL; 3203 3204 if (params->chandef.width != sdata->u.ibss.chandef.width) 3205 return -EINVAL; 3206 3207 switch (params->chandef.width) { 3208 case NL80211_CHAN_WIDTH_40: 3209 if (cfg80211_get_chandef_type(¶ms->chandef) != 3210 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3211 return -EINVAL; 3212 case NL80211_CHAN_WIDTH_5: 3213 case NL80211_CHAN_WIDTH_10: 3214 case NL80211_CHAN_WIDTH_20_NOHT: 3215 case NL80211_CHAN_WIDTH_20: 3216 break; 3217 default: 3218 return -EINVAL; 3219 } 3220 3221 /* changes into another band are not supported */ 3222 if (sdata->u.ibss.chandef.chan->band != 3223 params->chandef.chan->band) 3224 return -EINVAL; 3225 3226 /* see comments in the NL80211_IFTYPE_AP block */ 3227 if (params->count > 1) { 3228 err = ieee80211_ibss_csa_beacon(sdata, params); 3229 if (err < 0) 3230 return err; 3231 *changed |= err; 3232 } 3233 3234 ieee80211_send_action_csa(sdata, params); 3235 3236 break; 3237 #ifdef CONFIG_MAC80211_MESH 3238 case NL80211_IFTYPE_MESH_POINT: { 3239 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3240 3241 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3242 return -EINVAL; 3243 3244 /* changes into another band are not supported */ 3245 if (sdata->vif.bss_conf.chandef.chan->band != 3246 params->chandef.chan->band) 3247 return -EINVAL; 3248 3249 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3250 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3251 if (!ifmsh->pre_value) 3252 ifmsh->pre_value = 1; 3253 else 3254 ifmsh->pre_value++; 3255 } 3256 3257 /* see comments in the NL80211_IFTYPE_AP block */ 3258 if (params->count > 1) { 3259 err = ieee80211_mesh_csa_beacon(sdata, params); 3260 if (err < 0) { 3261 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3262 return err; 3263 } 3264 *changed |= err; 3265 } 3266 3267 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3268 ieee80211_send_action_csa(sdata, params); 3269 3270 break; 3271 } 3272 #endif 3273 default: 3274 return -EOPNOTSUPP; 3275 } 3276 3277 return 0; 3278 } 3279 3280 static int 3281 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3282 struct cfg80211_csa_settings *params) 3283 { 3284 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3285 struct ieee80211_local *local = sdata->local; 3286 struct ieee80211_channel_switch ch_switch; 3287 struct ieee80211_chanctx_conf *conf; 3288 struct ieee80211_chanctx *chanctx; 3289 u32 changed = 0; 3290 int err; 3291 3292 sdata_assert_lock(sdata); 3293 lockdep_assert_held(&local->mtx); 3294 3295 if (!list_empty(&local->roc_list) || local->scanning) 3296 return -EBUSY; 3297 3298 if (sdata->wdev.cac_started) 3299 return -EBUSY; 3300 3301 if (cfg80211_chandef_identical(¶ms->chandef, 3302 &sdata->vif.bss_conf.chandef)) 3303 return -EINVAL; 3304 3305 /* don't allow another channel switch if one is already active. */ 3306 if (sdata->vif.csa_active) 3307 return -EBUSY; 3308 3309 mutex_lock(&local->chanctx_mtx); 3310 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3311 lockdep_is_held(&local->chanctx_mtx)); 3312 if (!conf) { 3313 err = -EBUSY; 3314 goto out; 3315 } 3316 3317 if (params->chandef.chan->freq_offset) { 3318 /* this may work, but is untested */ 3319 err = -EOPNOTSUPP; 3320 goto out; 3321 } 3322 3323 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3324 3325 ch_switch.timestamp = 0; 3326 ch_switch.device_timestamp = 0; 3327 ch_switch.block_tx = params->block_tx; 3328 ch_switch.chandef = params->chandef; 3329 ch_switch.count = params->count; 3330 3331 err = drv_pre_channel_switch(sdata, &ch_switch); 3332 if (err) 3333 goto out; 3334 3335 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3336 chanctx->mode, 3337 params->radar_required); 3338 if (err) 3339 goto out; 3340 3341 /* if reservation is invalid then this will fail */ 3342 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3343 if (err) { 3344 ieee80211_vif_unreserve_chanctx(sdata); 3345 goto out; 3346 } 3347 3348 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3349 if (err) { 3350 ieee80211_vif_unreserve_chanctx(sdata); 3351 goto out; 3352 } 3353 3354 sdata->csa_chandef = params->chandef; 3355 sdata->csa_block_tx = params->block_tx; 3356 sdata->vif.csa_active = true; 3357 3358 if (sdata->csa_block_tx) 3359 ieee80211_stop_vif_queues(local, sdata, 3360 IEEE80211_QUEUE_STOP_REASON_CSA); 3361 3362 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3363 params->count); 3364 3365 if (changed) { 3366 ieee80211_bss_info_change_notify(sdata, changed); 3367 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3368 } else { 3369 /* if the beacon didn't change, we can finalize immediately */ 3370 ieee80211_csa_finalize(sdata); 3371 } 3372 3373 out: 3374 mutex_unlock(&local->chanctx_mtx); 3375 return err; 3376 } 3377 3378 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3379 struct cfg80211_csa_settings *params) 3380 { 3381 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3382 struct ieee80211_local *local = sdata->local; 3383 int err; 3384 3385 mutex_lock(&local->mtx); 3386 err = __ieee80211_channel_switch(wiphy, dev, params); 3387 mutex_unlock(&local->mtx); 3388 3389 return err; 3390 } 3391 3392 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3393 { 3394 lockdep_assert_held(&local->mtx); 3395 3396 local->roc_cookie_counter++; 3397 3398 /* wow, you wrapped 64 bits ... more likely a bug */ 3399 if (WARN_ON(local->roc_cookie_counter == 0)) 3400 local->roc_cookie_counter++; 3401 3402 return local->roc_cookie_counter; 3403 } 3404 3405 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3406 u64 *cookie, gfp_t gfp) 3407 { 3408 unsigned long spin_flags; 3409 struct sk_buff *ack_skb; 3410 int id; 3411 3412 ack_skb = skb_copy(skb, gfp); 3413 if (!ack_skb) 3414 return -ENOMEM; 3415 3416 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3417 id = idr_alloc(&local->ack_status_frames, ack_skb, 3418 1, 0x2000, GFP_ATOMIC); 3419 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3420 3421 if (id < 0) { 3422 kfree_skb(ack_skb); 3423 return -ENOMEM; 3424 } 3425 3426 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3427 3428 *cookie = ieee80211_mgmt_tx_cookie(local); 3429 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3430 3431 return 0; 3432 } 3433 3434 static void 3435 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 3436 struct wireless_dev *wdev, 3437 struct mgmt_frame_regs *upd) 3438 { 3439 struct ieee80211_local *local = wiphy_priv(wiphy); 3440 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3441 u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 3442 u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4); 3443 bool global_change, intf_change; 3444 3445 global_change = 3446 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) || 3447 (local->rx_mcast_action_reg != 3448 !!(upd->global_mcast_stypes & action_mask)); 3449 local->probe_req_reg = upd->global_stypes & preq_mask; 3450 local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask; 3451 3452 intf_change = (sdata->vif.probe_req_reg != 3453 !!(upd->interface_stypes & preq_mask)) || 3454 (sdata->vif.rx_mcast_action_reg != 3455 !!(upd->interface_mcast_stypes & action_mask)); 3456 sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask; 3457 sdata->vif.rx_mcast_action_reg = 3458 upd->interface_mcast_stypes & action_mask; 3459 3460 if (!local->open_count) 3461 return; 3462 3463 if (intf_change && ieee80211_sdata_running(sdata)) 3464 drv_config_iface_filter(local, sdata, 3465 sdata->vif.probe_req_reg ? 3466 FIF_PROBE_REQ : 0, 3467 FIF_PROBE_REQ); 3468 3469 if (global_change) 3470 ieee80211_configure_filter(local); 3471 } 3472 3473 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3474 { 3475 struct ieee80211_local *local = wiphy_priv(wiphy); 3476 3477 if (local->started) 3478 return -EOPNOTSUPP; 3479 3480 return drv_set_antenna(local, tx_ant, rx_ant); 3481 } 3482 3483 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3484 { 3485 struct ieee80211_local *local = wiphy_priv(wiphy); 3486 3487 return drv_get_antenna(local, tx_ant, rx_ant); 3488 } 3489 3490 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3491 struct net_device *dev, 3492 struct cfg80211_gtk_rekey_data *data) 3493 { 3494 struct ieee80211_local *local = wiphy_priv(wiphy); 3495 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3496 3497 if (!local->ops->set_rekey_data) 3498 return -EOPNOTSUPP; 3499 3500 drv_set_rekey_data(local, sdata, data); 3501 3502 return 0; 3503 } 3504 3505 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3506 const u8 *peer, u64 *cookie) 3507 { 3508 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3509 struct ieee80211_local *local = sdata->local; 3510 struct ieee80211_qos_hdr *nullfunc; 3511 struct sk_buff *skb; 3512 int size = sizeof(*nullfunc); 3513 __le16 fc; 3514 bool qos; 3515 struct ieee80211_tx_info *info; 3516 struct sta_info *sta; 3517 struct ieee80211_chanctx_conf *chanctx_conf; 3518 enum nl80211_band band; 3519 int ret; 3520 3521 /* the lock is needed to assign the cookie later */ 3522 mutex_lock(&local->mtx); 3523 3524 rcu_read_lock(); 3525 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3526 if (WARN_ON(!chanctx_conf)) { 3527 ret = -EINVAL; 3528 goto unlock; 3529 } 3530 band = chanctx_conf->def.chan->band; 3531 sta = sta_info_get_bss(sdata, peer); 3532 if (sta) { 3533 qos = sta->sta.wme; 3534 } else { 3535 ret = -ENOLINK; 3536 goto unlock; 3537 } 3538 3539 if (qos) { 3540 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3541 IEEE80211_STYPE_QOS_NULLFUNC | 3542 IEEE80211_FCTL_FROMDS); 3543 } else { 3544 size -= 2; 3545 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3546 IEEE80211_STYPE_NULLFUNC | 3547 IEEE80211_FCTL_FROMDS); 3548 } 3549 3550 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3551 if (!skb) { 3552 ret = -ENOMEM; 3553 goto unlock; 3554 } 3555 3556 skb->dev = dev; 3557 3558 skb_reserve(skb, local->hw.extra_tx_headroom); 3559 3560 nullfunc = skb_put(skb, size); 3561 nullfunc->frame_control = fc; 3562 nullfunc->duration_id = 0; 3563 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3564 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3565 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3566 nullfunc->seq_ctrl = 0; 3567 3568 info = IEEE80211_SKB_CB(skb); 3569 3570 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3571 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3572 info->band = band; 3573 3574 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3575 skb->priority = 7; 3576 if (qos) 3577 nullfunc->qos_ctrl = cpu_to_le16(7); 3578 3579 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3580 if (ret) { 3581 kfree_skb(skb); 3582 goto unlock; 3583 } 3584 3585 local_bh_disable(); 3586 ieee80211_xmit(sdata, sta, skb, 0); 3587 local_bh_enable(); 3588 3589 ret = 0; 3590 unlock: 3591 rcu_read_unlock(); 3592 mutex_unlock(&local->mtx); 3593 3594 return ret; 3595 } 3596 3597 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3598 struct wireless_dev *wdev, 3599 struct cfg80211_chan_def *chandef) 3600 { 3601 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3602 struct ieee80211_local *local = wiphy_priv(wiphy); 3603 struct ieee80211_chanctx_conf *chanctx_conf; 3604 int ret = -ENODATA; 3605 3606 rcu_read_lock(); 3607 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3608 if (chanctx_conf) { 3609 *chandef = sdata->vif.bss_conf.chandef; 3610 ret = 0; 3611 } else if (local->open_count > 0 && 3612 local->open_count == local->monitors && 3613 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3614 if (local->use_chanctx) 3615 *chandef = local->monitor_chandef; 3616 else 3617 *chandef = local->_oper_chandef; 3618 ret = 0; 3619 } 3620 rcu_read_unlock(); 3621 3622 return ret; 3623 } 3624 3625 #ifdef CONFIG_PM 3626 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3627 { 3628 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3629 } 3630 #endif 3631 3632 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3633 struct net_device *dev, 3634 struct cfg80211_qos_map *qos_map) 3635 { 3636 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3637 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3638 3639 if (qos_map) { 3640 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3641 if (!new_qos_map) 3642 return -ENOMEM; 3643 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3644 } else { 3645 /* A NULL qos_map was passed to disable QoS mapping */ 3646 new_qos_map = NULL; 3647 } 3648 3649 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3650 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3651 if (old_qos_map) 3652 kfree_rcu(old_qos_map, rcu_head); 3653 3654 return 0; 3655 } 3656 3657 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3658 struct net_device *dev, 3659 struct cfg80211_chan_def *chandef) 3660 { 3661 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3662 int ret; 3663 u32 changed = 0; 3664 3665 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3666 if (ret == 0) 3667 ieee80211_bss_info_change_notify(sdata, changed); 3668 3669 return ret; 3670 } 3671 3672 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3673 u8 tsid, const u8 *peer, u8 up, 3674 u16 admitted_time) 3675 { 3676 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3677 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3678 int ac = ieee802_1d_to_ac[up]; 3679 3680 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3681 return -EOPNOTSUPP; 3682 3683 if (!(sdata->wmm_acm & BIT(up))) 3684 return -EINVAL; 3685 3686 if (ifmgd->tx_tspec[ac].admitted_time) 3687 return -EBUSY; 3688 3689 if (admitted_time) { 3690 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3691 ifmgd->tx_tspec[ac].tsid = tsid; 3692 ifmgd->tx_tspec[ac].up = up; 3693 } 3694 3695 return 0; 3696 } 3697 3698 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3699 u8 tsid, const u8 *peer) 3700 { 3701 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3702 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3703 struct ieee80211_local *local = wiphy_priv(wiphy); 3704 int ac; 3705 3706 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3707 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3708 3709 /* skip unused entries */ 3710 if (!tx_tspec->admitted_time) 3711 continue; 3712 3713 if (tx_tspec->tsid != tsid) 3714 continue; 3715 3716 /* due to this new packets will be reassigned to non-ACM ACs */ 3717 tx_tspec->up = -1; 3718 3719 /* Make sure that all packets have been sent to avoid to 3720 * restore the QoS params on packets that are still on the 3721 * queues. 3722 */ 3723 synchronize_net(); 3724 ieee80211_flush_queues(local, sdata, false); 3725 3726 /* restore the normal QoS parameters 3727 * (unconditionally to avoid races) 3728 */ 3729 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3730 tx_tspec->downgraded = false; 3731 ieee80211_sta_handle_tspec_ac_params(sdata); 3732 3733 /* finally clear all the data */ 3734 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3735 3736 return 0; 3737 } 3738 3739 return -ENOENT; 3740 } 3741 3742 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3743 u8 inst_id, 3744 enum nl80211_nan_func_term_reason reason, 3745 gfp_t gfp) 3746 { 3747 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3748 struct cfg80211_nan_func *func; 3749 u64 cookie; 3750 3751 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3752 return; 3753 3754 spin_lock_bh(&sdata->u.nan.func_lock); 3755 3756 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3757 if (WARN_ON(!func)) { 3758 spin_unlock_bh(&sdata->u.nan.func_lock); 3759 return; 3760 } 3761 3762 cookie = func->cookie; 3763 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3764 3765 spin_unlock_bh(&sdata->u.nan.func_lock); 3766 3767 cfg80211_free_nan_func(func); 3768 3769 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3770 reason, cookie, gfp); 3771 } 3772 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3773 3774 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3775 struct cfg80211_nan_match_params *match, 3776 gfp_t gfp) 3777 { 3778 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3779 struct cfg80211_nan_func *func; 3780 3781 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3782 return; 3783 3784 spin_lock_bh(&sdata->u.nan.func_lock); 3785 3786 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3787 if (WARN_ON(!func)) { 3788 spin_unlock_bh(&sdata->u.nan.func_lock); 3789 return; 3790 } 3791 match->cookie = func->cookie; 3792 3793 spin_unlock_bh(&sdata->u.nan.func_lock); 3794 3795 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3796 } 3797 EXPORT_SYMBOL(ieee80211_nan_func_match); 3798 3799 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3800 struct net_device *dev, 3801 const bool enabled) 3802 { 3803 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3804 3805 sdata->u.ap.multicast_to_unicast = enabled; 3806 3807 return 0; 3808 } 3809 3810 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 3811 struct txq_info *txqi) 3812 { 3813 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 3814 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 3815 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 3816 } 3817 3818 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 3819 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 3820 txqstats->backlog_packets = txqi->tin.backlog_packets; 3821 } 3822 3823 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 3824 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 3825 txqstats->flows = txqi->tin.flows; 3826 } 3827 3828 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 3829 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 3830 txqstats->drops = txqi->cstats.drop_count; 3831 } 3832 3833 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 3834 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 3835 txqstats->ecn_marks = txqi->cstats.ecn_mark; 3836 } 3837 3838 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 3839 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 3840 txqstats->overlimit = txqi->tin.overlimit; 3841 } 3842 3843 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 3844 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 3845 txqstats->collisions = txqi->tin.collisions; 3846 } 3847 3848 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 3849 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 3850 txqstats->tx_bytes = txqi->tin.tx_bytes; 3851 } 3852 3853 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 3854 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 3855 txqstats->tx_packets = txqi->tin.tx_packets; 3856 } 3857 } 3858 3859 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 3860 struct wireless_dev *wdev, 3861 struct cfg80211_txq_stats *txqstats) 3862 { 3863 struct ieee80211_local *local = wiphy_priv(wiphy); 3864 struct ieee80211_sub_if_data *sdata; 3865 int ret = 0; 3866 3867 if (!local->ops->wake_tx_queue) 3868 return 1; 3869 3870 spin_lock_bh(&local->fq.lock); 3871 rcu_read_lock(); 3872 3873 if (wdev) { 3874 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3875 if (!sdata->vif.txq) { 3876 ret = 1; 3877 goto out; 3878 } 3879 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 3880 } else { 3881 /* phy stats */ 3882 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 3883 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 3884 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 3885 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 3886 BIT(NL80211_TXQ_STATS_COLLISIONS) | 3887 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 3888 txqstats->backlog_packets = local->fq.backlog; 3889 txqstats->backlog_bytes = local->fq.memory_usage; 3890 txqstats->overlimit = local->fq.overlimit; 3891 txqstats->overmemory = local->fq.overmemory; 3892 txqstats->collisions = local->fq.collisions; 3893 txqstats->max_flows = local->fq.flows_cnt; 3894 } 3895 3896 out: 3897 rcu_read_unlock(); 3898 spin_unlock_bh(&local->fq.lock); 3899 3900 return ret; 3901 } 3902 3903 static int 3904 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 3905 struct net_device *dev, 3906 struct cfg80211_ftm_responder_stats *ftm_stats) 3907 { 3908 struct ieee80211_local *local = wiphy_priv(wiphy); 3909 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3910 3911 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 3912 } 3913 3914 static int 3915 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3916 struct cfg80211_pmsr_request *request) 3917 { 3918 struct ieee80211_local *local = wiphy_priv(wiphy); 3919 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3920 3921 return drv_start_pmsr(local, sdata, request); 3922 } 3923 3924 static void 3925 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3926 struct cfg80211_pmsr_request *request) 3927 { 3928 struct ieee80211_local *local = wiphy_priv(wiphy); 3929 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3930 3931 return drv_abort_pmsr(local, sdata, request); 3932 } 3933 3934 static int ieee80211_set_tid_config(struct wiphy *wiphy, 3935 struct net_device *dev, 3936 struct cfg80211_tid_config *tid_conf) 3937 { 3938 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3939 struct sta_info *sta; 3940 int ret; 3941 3942 if (!sdata->local->ops->set_tid_config) 3943 return -EOPNOTSUPP; 3944 3945 if (!tid_conf->peer) 3946 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 3947 3948 mutex_lock(&sdata->local->sta_mtx); 3949 sta = sta_info_get_bss(sdata, tid_conf->peer); 3950 if (!sta) { 3951 mutex_unlock(&sdata->local->sta_mtx); 3952 return -ENOENT; 3953 } 3954 3955 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 3956 mutex_unlock(&sdata->local->sta_mtx); 3957 3958 return ret; 3959 } 3960 3961 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 3962 struct net_device *dev, 3963 const u8 *peer, u8 tids) 3964 { 3965 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3966 struct sta_info *sta; 3967 int ret; 3968 3969 if (!sdata->local->ops->reset_tid_config) 3970 return -EOPNOTSUPP; 3971 3972 if (!peer) 3973 return drv_reset_tid_config(sdata->local, sdata, NULL, tids); 3974 3975 mutex_lock(&sdata->local->sta_mtx); 3976 sta = sta_info_get_bss(sdata, peer); 3977 if (!sta) { 3978 mutex_unlock(&sdata->local->sta_mtx); 3979 return -ENOENT; 3980 } 3981 3982 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids); 3983 mutex_unlock(&sdata->local->sta_mtx); 3984 3985 return ret; 3986 } 3987 3988 const struct cfg80211_ops mac80211_config_ops = { 3989 .add_virtual_intf = ieee80211_add_iface, 3990 .del_virtual_intf = ieee80211_del_iface, 3991 .change_virtual_intf = ieee80211_change_iface, 3992 .start_p2p_device = ieee80211_start_p2p_device, 3993 .stop_p2p_device = ieee80211_stop_p2p_device, 3994 .add_key = ieee80211_add_key, 3995 .del_key = ieee80211_del_key, 3996 .get_key = ieee80211_get_key, 3997 .set_default_key = ieee80211_config_default_key, 3998 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3999 .set_default_beacon_key = ieee80211_config_default_beacon_key, 4000 .start_ap = ieee80211_start_ap, 4001 .change_beacon = ieee80211_change_beacon, 4002 .stop_ap = ieee80211_stop_ap, 4003 .add_station = ieee80211_add_station, 4004 .del_station = ieee80211_del_station, 4005 .change_station = ieee80211_change_station, 4006 .get_station = ieee80211_get_station, 4007 .dump_station = ieee80211_dump_station, 4008 .dump_survey = ieee80211_dump_survey, 4009 #ifdef CONFIG_MAC80211_MESH 4010 .add_mpath = ieee80211_add_mpath, 4011 .del_mpath = ieee80211_del_mpath, 4012 .change_mpath = ieee80211_change_mpath, 4013 .get_mpath = ieee80211_get_mpath, 4014 .dump_mpath = ieee80211_dump_mpath, 4015 .get_mpp = ieee80211_get_mpp, 4016 .dump_mpp = ieee80211_dump_mpp, 4017 .update_mesh_config = ieee80211_update_mesh_config, 4018 .get_mesh_config = ieee80211_get_mesh_config, 4019 .join_mesh = ieee80211_join_mesh, 4020 .leave_mesh = ieee80211_leave_mesh, 4021 #endif 4022 .join_ocb = ieee80211_join_ocb, 4023 .leave_ocb = ieee80211_leave_ocb, 4024 .change_bss = ieee80211_change_bss, 4025 .set_txq_params = ieee80211_set_txq_params, 4026 .set_monitor_channel = ieee80211_set_monitor_channel, 4027 .suspend = ieee80211_suspend, 4028 .resume = ieee80211_resume, 4029 .scan = ieee80211_scan, 4030 .abort_scan = ieee80211_abort_scan, 4031 .sched_scan_start = ieee80211_sched_scan_start, 4032 .sched_scan_stop = ieee80211_sched_scan_stop, 4033 .auth = ieee80211_auth, 4034 .assoc = ieee80211_assoc, 4035 .deauth = ieee80211_deauth, 4036 .disassoc = ieee80211_disassoc, 4037 .join_ibss = ieee80211_join_ibss, 4038 .leave_ibss = ieee80211_leave_ibss, 4039 .set_mcast_rate = ieee80211_set_mcast_rate, 4040 .set_wiphy_params = ieee80211_set_wiphy_params, 4041 .set_tx_power = ieee80211_set_tx_power, 4042 .get_tx_power = ieee80211_get_tx_power, 4043 .set_wds_peer = ieee80211_set_wds_peer, 4044 .rfkill_poll = ieee80211_rfkill_poll, 4045 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 4046 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 4047 .set_power_mgmt = ieee80211_set_power_mgmt, 4048 .set_bitrate_mask = ieee80211_set_bitrate_mask, 4049 .remain_on_channel = ieee80211_remain_on_channel, 4050 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 4051 .mgmt_tx = ieee80211_mgmt_tx, 4052 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 4053 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 4054 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 4055 .update_mgmt_frame_registrations = 4056 ieee80211_update_mgmt_frame_registrations, 4057 .set_antenna = ieee80211_set_antenna, 4058 .get_antenna = ieee80211_get_antenna, 4059 .set_rekey_data = ieee80211_set_rekey_data, 4060 .tdls_oper = ieee80211_tdls_oper, 4061 .tdls_mgmt = ieee80211_tdls_mgmt, 4062 .tdls_channel_switch = ieee80211_tdls_channel_switch, 4063 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 4064 .probe_client = ieee80211_probe_client, 4065 .set_noack_map = ieee80211_set_noack_map, 4066 #ifdef CONFIG_PM 4067 .set_wakeup = ieee80211_set_wakeup, 4068 #endif 4069 .get_channel = ieee80211_cfg_get_channel, 4070 .start_radar_detection = ieee80211_start_radar_detection, 4071 .end_cac = ieee80211_end_cac, 4072 .channel_switch = ieee80211_channel_switch, 4073 .set_qos_map = ieee80211_set_qos_map, 4074 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 4075 .add_tx_ts = ieee80211_add_tx_ts, 4076 .del_tx_ts = ieee80211_del_tx_ts, 4077 .start_nan = ieee80211_start_nan, 4078 .stop_nan = ieee80211_stop_nan, 4079 .nan_change_conf = ieee80211_nan_change_conf, 4080 .add_nan_func = ieee80211_add_nan_func, 4081 .del_nan_func = ieee80211_del_nan_func, 4082 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 4083 .tx_control_port = ieee80211_tx_control_port, 4084 .get_txq_stats = ieee80211_get_txq_stats, 4085 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 4086 .start_pmsr = ieee80211_start_pmsr, 4087 .abort_pmsr = ieee80211_abort_pmsr, 4088 .probe_mesh_link = ieee80211_probe_mesh_link, 4089 .set_tid_config = ieee80211_set_tid_config, 4090 .reset_tid_config = ieee80211_reset_tid_config, 4091 }; 4092