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 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 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); 1089 if (err < 0) { 1090 ieee80211_vif_release_channel(sdata); 1091 return err; 1092 } 1093 changed |= err; 1094 1095 err = drv_start_ap(sdata->local, sdata); 1096 if (err) { 1097 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1098 1099 if (old) 1100 kfree_rcu(old, rcu_head); 1101 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1102 ieee80211_vif_release_channel(sdata); 1103 return err; 1104 } 1105 1106 ieee80211_recalc_dtim(local, sdata); 1107 ieee80211_bss_info_change_notify(sdata, changed); 1108 1109 netif_carrier_on(dev); 1110 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1111 netif_carrier_on(vlan->dev); 1112 1113 return 0; 1114 } 1115 1116 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1117 struct cfg80211_beacon_data *params) 1118 { 1119 struct ieee80211_sub_if_data *sdata; 1120 struct beacon_data *old; 1121 int err; 1122 1123 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1124 sdata_assert_lock(sdata); 1125 1126 /* don't allow changing the beacon while CSA is in place - offset 1127 * of channel switch counter may change 1128 */ 1129 if (sdata->vif.csa_active) 1130 return -EBUSY; 1131 1132 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1133 if (!old) 1134 return -ENOENT; 1135 1136 err = ieee80211_assign_beacon(sdata, params, NULL); 1137 if (err < 0) 1138 return err; 1139 ieee80211_bss_info_change_notify(sdata, err); 1140 return 0; 1141 } 1142 1143 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1144 { 1145 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1146 struct ieee80211_sub_if_data *vlan; 1147 struct ieee80211_local *local = sdata->local; 1148 struct beacon_data *old_beacon; 1149 struct probe_resp *old_probe_resp; 1150 struct cfg80211_chan_def chandef; 1151 1152 sdata_assert_lock(sdata); 1153 1154 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1155 if (!old_beacon) 1156 return -ENOENT; 1157 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1158 1159 /* abort any running channel switch */ 1160 mutex_lock(&local->mtx); 1161 sdata->vif.csa_active = false; 1162 if (sdata->csa_block_tx) { 1163 ieee80211_wake_vif_queues(local, sdata, 1164 IEEE80211_QUEUE_STOP_REASON_CSA); 1165 sdata->csa_block_tx = false; 1166 } 1167 1168 mutex_unlock(&local->mtx); 1169 1170 kfree(sdata->u.ap.next_beacon); 1171 sdata->u.ap.next_beacon = NULL; 1172 1173 /* turn off carrier for this interface and dependent VLANs */ 1174 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1175 netif_carrier_off(vlan->dev); 1176 netif_carrier_off(dev); 1177 1178 /* remove beacon and probe response */ 1179 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1180 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1181 kfree_rcu(old_beacon, rcu_head); 1182 if (old_probe_resp) 1183 kfree_rcu(old_probe_resp, rcu_head); 1184 1185 kfree(sdata->vif.bss_conf.ftmr_params); 1186 sdata->vif.bss_conf.ftmr_params = NULL; 1187 1188 __sta_info_flush(sdata, true); 1189 ieee80211_free_keys(sdata, true); 1190 1191 sdata->vif.bss_conf.enable_beacon = false; 1192 sdata->vif.bss_conf.ssid_len = 0; 1193 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1194 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1195 1196 if (sdata->wdev.cac_started) { 1197 chandef = sdata->vif.bss_conf.chandef; 1198 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1199 cfg80211_cac_event(sdata->dev, &chandef, 1200 NL80211_RADAR_CAC_ABORTED, 1201 GFP_KERNEL); 1202 } 1203 1204 drv_stop_ap(sdata->local, sdata); 1205 1206 /* free all potentially still buffered bcast frames */ 1207 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1208 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1209 1210 mutex_lock(&local->mtx); 1211 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1212 ieee80211_vif_release_channel(sdata); 1213 mutex_unlock(&local->mtx); 1214 1215 return 0; 1216 } 1217 1218 static int sta_apply_auth_flags(struct ieee80211_local *local, 1219 struct sta_info *sta, 1220 u32 mask, u32 set) 1221 { 1222 int ret; 1223 1224 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1225 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1226 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1227 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1228 if (ret) 1229 return ret; 1230 } 1231 1232 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1233 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1234 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1235 /* 1236 * When peer becomes associated, init rate control as 1237 * well. Some drivers require rate control initialized 1238 * before drv_sta_state() is called. 1239 */ 1240 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1241 rate_control_rate_init(sta); 1242 1243 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1244 if (ret) 1245 return ret; 1246 } 1247 1248 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1249 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1250 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1251 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1252 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1253 else 1254 ret = 0; 1255 if (ret) 1256 return ret; 1257 } 1258 1259 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1260 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1261 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1262 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1263 if (ret) 1264 return ret; 1265 } 1266 1267 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1268 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1269 test_sta_flag(sta, WLAN_STA_AUTH)) { 1270 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1271 if (ret) 1272 return ret; 1273 } 1274 1275 return 0; 1276 } 1277 1278 static void sta_apply_mesh_params(struct ieee80211_local *local, 1279 struct sta_info *sta, 1280 struct station_parameters *params) 1281 { 1282 #ifdef CONFIG_MAC80211_MESH 1283 struct ieee80211_sub_if_data *sdata = sta->sdata; 1284 u32 changed = 0; 1285 1286 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1287 switch (params->plink_state) { 1288 case NL80211_PLINK_ESTAB: 1289 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1290 changed = mesh_plink_inc_estab_count(sdata); 1291 sta->mesh->plink_state = params->plink_state; 1292 sta->mesh->aid = params->peer_aid; 1293 1294 ieee80211_mps_sta_status_update(sta); 1295 changed |= ieee80211_mps_set_sta_local_pm(sta, 1296 sdata->u.mesh.mshcfg.power_mode); 1297 1298 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1299 /* init at low value */ 1300 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1301 1302 break; 1303 case NL80211_PLINK_LISTEN: 1304 case NL80211_PLINK_BLOCKED: 1305 case NL80211_PLINK_OPN_SNT: 1306 case NL80211_PLINK_OPN_RCVD: 1307 case NL80211_PLINK_CNF_RCVD: 1308 case NL80211_PLINK_HOLDING: 1309 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1310 changed = mesh_plink_dec_estab_count(sdata); 1311 sta->mesh->plink_state = params->plink_state; 1312 1313 ieee80211_mps_sta_status_update(sta); 1314 changed |= ieee80211_mps_set_sta_local_pm(sta, 1315 NL80211_MESH_POWER_UNKNOWN); 1316 break; 1317 default: 1318 /* nothing */ 1319 break; 1320 } 1321 } 1322 1323 switch (params->plink_action) { 1324 case NL80211_PLINK_ACTION_NO_ACTION: 1325 /* nothing */ 1326 break; 1327 case NL80211_PLINK_ACTION_OPEN: 1328 changed |= mesh_plink_open(sta); 1329 break; 1330 case NL80211_PLINK_ACTION_BLOCK: 1331 changed |= mesh_plink_block(sta); 1332 break; 1333 } 1334 1335 if (params->local_pm) 1336 changed |= ieee80211_mps_set_sta_local_pm(sta, 1337 params->local_pm); 1338 1339 ieee80211_mbss_info_change_notify(sdata, changed); 1340 #endif 1341 } 1342 1343 static int sta_apply_parameters(struct ieee80211_local *local, 1344 struct sta_info *sta, 1345 struct station_parameters *params) 1346 { 1347 int ret = 0; 1348 struct ieee80211_supported_band *sband; 1349 struct ieee80211_sub_if_data *sdata = sta->sdata; 1350 u32 mask, set; 1351 1352 sband = ieee80211_get_sband(sdata); 1353 if (!sband) 1354 return -EINVAL; 1355 1356 mask = params->sta_flags_mask; 1357 set = params->sta_flags_set; 1358 1359 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1360 /* 1361 * In mesh mode, ASSOCIATED isn't part of the nl80211 1362 * API but must follow AUTHENTICATED for driver state. 1363 */ 1364 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1365 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1366 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1367 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1368 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1369 /* 1370 * TDLS -- everything follows authorized, but 1371 * only becoming authorized is possible, not 1372 * going back 1373 */ 1374 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1375 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1376 BIT(NL80211_STA_FLAG_ASSOCIATED); 1377 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1378 BIT(NL80211_STA_FLAG_ASSOCIATED); 1379 } 1380 } 1381 1382 if (mask & BIT(NL80211_STA_FLAG_WME) && 1383 local->hw.queues >= IEEE80211_NUM_ACS) 1384 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1385 1386 /* auth flags will be set later for TDLS, 1387 * and for unassociated stations that move to assocaited */ 1388 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1389 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1390 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1391 ret = sta_apply_auth_flags(local, sta, mask, set); 1392 if (ret) 1393 return ret; 1394 } 1395 1396 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1397 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1398 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1399 else 1400 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1401 } 1402 1403 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1404 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1405 if (set & BIT(NL80211_STA_FLAG_MFP)) 1406 set_sta_flag(sta, WLAN_STA_MFP); 1407 else 1408 clear_sta_flag(sta, WLAN_STA_MFP); 1409 } 1410 1411 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1412 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1413 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1414 else 1415 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1416 } 1417 1418 /* mark TDLS channel switch support, if the AP allows it */ 1419 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1420 !sdata->u.mgd.tdls_chan_switch_prohibited && 1421 params->ext_capab_len >= 4 && 1422 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1423 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1424 1425 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1426 !sdata->u.mgd.tdls_wider_bw_prohibited && 1427 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1428 params->ext_capab_len >= 8 && 1429 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1430 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1431 1432 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1433 sta->sta.uapsd_queues = params->uapsd_queues; 1434 sta->sta.max_sp = params->max_sp; 1435 } 1436 1437 /* The sender might not have sent the last bit, consider it to be 0 */ 1438 if (params->ext_capab_len >= 8) { 1439 u8 val = (params->ext_capab[7] & 1440 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1441 1442 /* we did get all the bits, take the MSB as well */ 1443 if (params->ext_capab_len >= 9) { 1444 u8 val_msb = params->ext_capab[8] & 1445 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1446 val_msb <<= 1; 1447 val |= val_msb; 1448 } 1449 1450 switch (val) { 1451 case 1: 1452 sta->sta.max_amsdu_subframes = 32; 1453 break; 1454 case 2: 1455 sta->sta.max_amsdu_subframes = 16; 1456 break; 1457 case 3: 1458 sta->sta.max_amsdu_subframes = 8; 1459 break; 1460 default: 1461 sta->sta.max_amsdu_subframes = 0; 1462 } 1463 } 1464 1465 /* 1466 * cfg80211 validates this (1-2007) and allows setting the AID 1467 * only when creating a new station entry 1468 */ 1469 if (params->aid) 1470 sta->sta.aid = params->aid; 1471 1472 /* 1473 * Some of the following updates would be racy if called on an 1474 * existing station, via ieee80211_change_station(). However, 1475 * all such changes are rejected by cfg80211 except for updates 1476 * changing the supported rates on an existing but not yet used 1477 * TDLS peer. 1478 */ 1479 1480 if (params->listen_interval >= 0) 1481 sta->listen_interval = params->listen_interval; 1482 1483 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) { 1484 sta->sta.txpwr.type = params->txpwr.type; 1485 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1486 sta->sta.txpwr.power = params->txpwr.power; 1487 ret = drv_sta_set_txpwr(local, sdata, sta); 1488 if (ret) 1489 return ret; 1490 } 1491 1492 if (params->supported_rates && params->supported_rates_len) { 1493 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1494 sband, params->supported_rates, 1495 params->supported_rates_len, 1496 &sta->sta.supp_rates[sband->band]); 1497 } 1498 1499 if (params->ht_capa) 1500 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1501 params->ht_capa, sta); 1502 1503 /* VHT can override some HT caps such as the A-MSDU max length */ 1504 if (params->vht_capa) 1505 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1506 params->vht_capa, sta); 1507 1508 if (params->he_capa) 1509 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1510 (void *)params->he_capa, 1511 params->he_capa_len, sta); 1512 1513 if (params->opmode_notif_used) { 1514 /* returned value is only needed for rc update, but the 1515 * rc isn't initialized here yet, so ignore it 1516 */ 1517 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1518 sband->band); 1519 } 1520 1521 if (params->support_p2p_ps >= 0) 1522 sta->sta.support_p2p_ps = params->support_p2p_ps; 1523 1524 if (ieee80211_vif_is_mesh(&sdata->vif)) 1525 sta_apply_mesh_params(local, sta, params); 1526 1527 if (params->airtime_weight) 1528 sta->airtime_weight = params->airtime_weight; 1529 1530 /* set the STA state after all sta info from usermode has been set */ 1531 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1532 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1533 ret = sta_apply_auth_flags(local, sta, mask, set); 1534 if (ret) 1535 return ret; 1536 } 1537 1538 return 0; 1539 } 1540 1541 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1542 const u8 *mac, 1543 struct station_parameters *params) 1544 { 1545 struct ieee80211_local *local = wiphy_priv(wiphy); 1546 struct sta_info *sta; 1547 struct ieee80211_sub_if_data *sdata; 1548 int err; 1549 1550 if (params->vlan) { 1551 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1552 1553 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1554 sdata->vif.type != NL80211_IFTYPE_AP) 1555 return -EINVAL; 1556 } else 1557 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1558 1559 if (ether_addr_equal(mac, sdata->vif.addr)) 1560 return -EINVAL; 1561 1562 if (!is_valid_ether_addr(mac)) 1563 return -EINVAL; 1564 1565 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 1566 sdata->vif.type == NL80211_IFTYPE_STATION && 1567 !sdata->u.mgd.associated) 1568 return -EINVAL; 1569 1570 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1571 if (!sta) 1572 return -ENOMEM; 1573 1574 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1575 sta->sta.tdls = true; 1576 1577 err = sta_apply_parameters(local, sta, params); 1578 if (err) { 1579 sta_info_free(local, sta); 1580 return err; 1581 } 1582 1583 /* 1584 * for TDLS and for unassociated station, rate control should be 1585 * initialized only when rates are known and station is marked 1586 * authorized/associated 1587 */ 1588 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1589 test_sta_flag(sta, WLAN_STA_ASSOC)) 1590 rate_control_rate_init(sta); 1591 1592 err = sta_info_insert_rcu(sta); 1593 if (err) { 1594 rcu_read_unlock(); 1595 return err; 1596 } 1597 1598 rcu_read_unlock(); 1599 1600 return 0; 1601 } 1602 1603 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1604 struct station_del_parameters *params) 1605 { 1606 struct ieee80211_sub_if_data *sdata; 1607 1608 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1609 1610 if (params->mac) 1611 return sta_info_destroy_addr_bss(sdata, params->mac); 1612 1613 sta_info_flush(sdata); 1614 return 0; 1615 } 1616 1617 static int ieee80211_change_station(struct wiphy *wiphy, 1618 struct net_device *dev, const u8 *mac, 1619 struct station_parameters *params) 1620 { 1621 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1622 struct ieee80211_local *local = wiphy_priv(wiphy); 1623 struct sta_info *sta; 1624 struct ieee80211_sub_if_data *vlansdata; 1625 enum cfg80211_station_type statype; 1626 int err; 1627 1628 mutex_lock(&local->sta_mtx); 1629 1630 sta = sta_info_get_bss(sdata, mac); 1631 if (!sta) { 1632 err = -ENOENT; 1633 goto out_err; 1634 } 1635 1636 switch (sdata->vif.type) { 1637 case NL80211_IFTYPE_MESH_POINT: 1638 if (sdata->u.mesh.user_mpm) 1639 statype = CFG80211_STA_MESH_PEER_USER; 1640 else 1641 statype = CFG80211_STA_MESH_PEER_KERNEL; 1642 break; 1643 case NL80211_IFTYPE_ADHOC: 1644 statype = CFG80211_STA_IBSS; 1645 break; 1646 case NL80211_IFTYPE_STATION: 1647 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1648 statype = CFG80211_STA_AP_STA; 1649 break; 1650 } 1651 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1652 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1653 else 1654 statype = CFG80211_STA_TDLS_PEER_SETUP; 1655 break; 1656 case NL80211_IFTYPE_AP: 1657 case NL80211_IFTYPE_AP_VLAN: 1658 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1659 statype = CFG80211_STA_AP_CLIENT; 1660 else 1661 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1662 break; 1663 default: 1664 err = -EOPNOTSUPP; 1665 goto out_err; 1666 } 1667 1668 err = cfg80211_check_station_change(wiphy, params, statype); 1669 if (err) 1670 goto out_err; 1671 1672 if (params->vlan && params->vlan != sta->sdata->dev) { 1673 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1674 1675 if (params->vlan->ieee80211_ptr->use_4addr) { 1676 if (vlansdata->u.vlan.sta) { 1677 err = -EBUSY; 1678 goto out_err; 1679 } 1680 1681 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1682 __ieee80211_check_fast_rx_iface(vlansdata); 1683 } 1684 1685 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1686 sta->sdata->u.vlan.sta) 1687 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1688 1689 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1690 ieee80211_vif_dec_num_mcast(sta->sdata); 1691 1692 sta->sdata = vlansdata; 1693 ieee80211_check_fast_xmit(sta); 1694 1695 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) { 1696 ieee80211_vif_inc_num_mcast(sta->sdata); 1697 cfg80211_send_layer2_update(sta->sdata->dev, 1698 sta->sta.addr); 1699 } 1700 } 1701 1702 err = sta_apply_parameters(local, sta, params); 1703 if (err) 1704 goto out_err; 1705 1706 mutex_unlock(&local->sta_mtx); 1707 1708 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1709 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1710 ieee80211_recalc_ps(local); 1711 ieee80211_recalc_ps_vif(sdata); 1712 } 1713 1714 return 0; 1715 out_err: 1716 mutex_unlock(&local->sta_mtx); 1717 return err; 1718 } 1719 1720 #ifdef CONFIG_MAC80211_MESH 1721 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1722 const u8 *dst, const u8 *next_hop) 1723 { 1724 struct ieee80211_sub_if_data *sdata; 1725 struct mesh_path *mpath; 1726 struct sta_info *sta; 1727 1728 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1729 1730 rcu_read_lock(); 1731 sta = sta_info_get(sdata, next_hop); 1732 if (!sta) { 1733 rcu_read_unlock(); 1734 return -ENOENT; 1735 } 1736 1737 mpath = mesh_path_add(sdata, dst); 1738 if (IS_ERR(mpath)) { 1739 rcu_read_unlock(); 1740 return PTR_ERR(mpath); 1741 } 1742 1743 mesh_path_fix_nexthop(mpath, sta); 1744 1745 rcu_read_unlock(); 1746 return 0; 1747 } 1748 1749 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1750 const u8 *dst) 1751 { 1752 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1753 1754 if (dst) 1755 return mesh_path_del(sdata, dst); 1756 1757 mesh_path_flush_by_iface(sdata); 1758 return 0; 1759 } 1760 1761 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1762 const u8 *dst, const u8 *next_hop) 1763 { 1764 struct ieee80211_sub_if_data *sdata; 1765 struct mesh_path *mpath; 1766 struct sta_info *sta; 1767 1768 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1769 1770 rcu_read_lock(); 1771 1772 sta = sta_info_get(sdata, next_hop); 1773 if (!sta) { 1774 rcu_read_unlock(); 1775 return -ENOENT; 1776 } 1777 1778 mpath = mesh_path_lookup(sdata, dst); 1779 if (!mpath) { 1780 rcu_read_unlock(); 1781 return -ENOENT; 1782 } 1783 1784 mesh_path_fix_nexthop(mpath, sta); 1785 1786 rcu_read_unlock(); 1787 return 0; 1788 } 1789 1790 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1791 struct mpath_info *pinfo) 1792 { 1793 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1794 1795 if (next_hop_sta) 1796 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1797 else 1798 eth_zero_addr(next_hop); 1799 1800 memset(pinfo, 0, sizeof(*pinfo)); 1801 1802 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1803 1804 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1805 MPATH_INFO_SN | 1806 MPATH_INFO_METRIC | 1807 MPATH_INFO_EXPTIME | 1808 MPATH_INFO_DISCOVERY_TIMEOUT | 1809 MPATH_INFO_DISCOVERY_RETRIES | 1810 MPATH_INFO_FLAGS | 1811 MPATH_INFO_HOP_COUNT | 1812 MPATH_INFO_PATH_CHANGE; 1813 1814 pinfo->frame_qlen = mpath->frame_queue.qlen; 1815 pinfo->sn = mpath->sn; 1816 pinfo->metric = mpath->metric; 1817 if (time_before(jiffies, mpath->exp_time)) 1818 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1819 pinfo->discovery_timeout = 1820 jiffies_to_msecs(mpath->discovery_timeout); 1821 pinfo->discovery_retries = mpath->discovery_retries; 1822 if (mpath->flags & MESH_PATH_ACTIVE) 1823 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1824 if (mpath->flags & MESH_PATH_RESOLVING) 1825 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1826 if (mpath->flags & MESH_PATH_SN_VALID) 1827 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1828 if (mpath->flags & MESH_PATH_FIXED) 1829 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1830 if (mpath->flags & MESH_PATH_RESOLVED) 1831 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1832 pinfo->hop_count = mpath->hop_count; 1833 pinfo->path_change_count = mpath->path_change_count; 1834 } 1835 1836 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1837 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1838 1839 { 1840 struct ieee80211_sub_if_data *sdata; 1841 struct mesh_path *mpath; 1842 1843 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1844 1845 rcu_read_lock(); 1846 mpath = mesh_path_lookup(sdata, dst); 1847 if (!mpath) { 1848 rcu_read_unlock(); 1849 return -ENOENT; 1850 } 1851 memcpy(dst, mpath->dst, ETH_ALEN); 1852 mpath_set_pinfo(mpath, next_hop, pinfo); 1853 rcu_read_unlock(); 1854 return 0; 1855 } 1856 1857 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1858 int idx, u8 *dst, u8 *next_hop, 1859 struct mpath_info *pinfo) 1860 { 1861 struct ieee80211_sub_if_data *sdata; 1862 struct mesh_path *mpath; 1863 1864 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1865 1866 rcu_read_lock(); 1867 mpath = mesh_path_lookup_by_idx(sdata, idx); 1868 if (!mpath) { 1869 rcu_read_unlock(); 1870 return -ENOENT; 1871 } 1872 memcpy(dst, mpath->dst, ETH_ALEN); 1873 mpath_set_pinfo(mpath, next_hop, pinfo); 1874 rcu_read_unlock(); 1875 return 0; 1876 } 1877 1878 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1879 struct mpath_info *pinfo) 1880 { 1881 memset(pinfo, 0, sizeof(*pinfo)); 1882 memcpy(mpp, mpath->mpp, ETH_ALEN); 1883 1884 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1885 } 1886 1887 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1888 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1889 1890 { 1891 struct ieee80211_sub_if_data *sdata; 1892 struct mesh_path *mpath; 1893 1894 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1895 1896 rcu_read_lock(); 1897 mpath = mpp_path_lookup(sdata, dst); 1898 if (!mpath) { 1899 rcu_read_unlock(); 1900 return -ENOENT; 1901 } 1902 memcpy(dst, mpath->dst, ETH_ALEN); 1903 mpp_set_pinfo(mpath, mpp, pinfo); 1904 rcu_read_unlock(); 1905 return 0; 1906 } 1907 1908 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1909 int idx, u8 *dst, u8 *mpp, 1910 struct mpath_info *pinfo) 1911 { 1912 struct ieee80211_sub_if_data *sdata; 1913 struct mesh_path *mpath; 1914 1915 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1916 1917 rcu_read_lock(); 1918 mpath = mpp_path_lookup_by_idx(sdata, idx); 1919 if (!mpath) { 1920 rcu_read_unlock(); 1921 return -ENOENT; 1922 } 1923 memcpy(dst, mpath->dst, ETH_ALEN); 1924 mpp_set_pinfo(mpath, mpp, pinfo); 1925 rcu_read_unlock(); 1926 return 0; 1927 } 1928 1929 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1930 struct net_device *dev, 1931 struct mesh_config *conf) 1932 { 1933 struct ieee80211_sub_if_data *sdata; 1934 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1935 1936 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1937 return 0; 1938 } 1939 1940 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1941 { 1942 return (mask >> (parm-1)) & 0x1; 1943 } 1944 1945 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1946 const struct mesh_setup *setup) 1947 { 1948 u8 *new_ie; 1949 const u8 *old_ie; 1950 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1951 struct ieee80211_sub_if_data, u.mesh); 1952 1953 /* allocate information elements */ 1954 new_ie = NULL; 1955 old_ie = ifmsh->ie; 1956 1957 if (setup->ie_len) { 1958 new_ie = kmemdup(setup->ie, setup->ie_len, 1959 GFP_KERNEL); 1960 if (!new_ie) 1961 return -ENOMEM; 1962 } 1963 ifmsh->ie_len = setup->ie_len; 1964 ifmsh->ie = new_ie; 1965 kfree(old_ie); 1966 1967 /* now copy the rest of the setup parameters */ 1968 ifmsh->mesh_id_len = setup->mesh_id_len; 1969 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1970 ifmsh->mesh_sp_id = setup->sync_method; 1971 ifmsh->mesh_pp_id = setup->path_sel_proto; 1972 ifmsh->mesh_pm_id = setup->path_metric; 1973 ifmsh->user_mpm = setup->user_mpm; 1974 ifmsh->mesh_auth_id = setup->auth_id; 1975 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1976 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 1977 if (setup->is_authenticated) 1978 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1979 if (setup->is_secure) 1980 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1981 1982 /* mcast rate setting in Mesh Node */ 1983 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1984 sizeof(setup->mcast_rate)); 1985 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1986 1987 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1988 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1989 1990 return 0; 1991 } 1992 1993 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1994 struct net_device *dev, u32 mask, 1995 const struct mesh_config *nconf) 1996 { 1997 struct mesh_config *conf; 1998 struct ieee80211_sub_if_data *sdata; 1999 struct ieee80211_if_mesh *ifmsh; 2000 2001 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2002 ifmsh = &sdata->u.mesh; 2003 2004 /* Set the config options which we are interested in setting */ 2005 conf = &(sdata->u.mesh.mshcfg); 2006 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2007 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2008 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2009 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2010 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2011 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2012 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2013 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2014 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2015 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2016 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2017 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2018 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2019 conf->element_ttl = nconf->element_ttl; 2020 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2021 if (ifmsh->user_mpm) 2022 return -EBUSY; 2023 conf->auto_open_plinks = nconf->auto_open_plinks; 2024 } 2025 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2026 conf->dot11MeshNbrOffsetMaxNeighbor = 2027 nconf->dot11MeshNbrOffsetMaxNeighbor; 2028 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2029 conf->dot11MeshHWMPmaxPREQretries = 2030 nconf->dot11MeshHWMPmaxPREQretries; 2031 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2032 conf->path_refresh_time = nconf->path_refresh_time; 2033 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2034 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2035 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2036 conf->dot11MeshHWMPactivePathTimeout = 2037 nconf->dot11MeshHWMPactivePathTimeout; 2038 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2039 conf->dot11MeshHWMPpreqMinInterval = 2040 nconf->dot11MeshHWMPpreqMinInterval; 2041 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2042 conf->dot11MeshHWMPperrMinInterval = 2043 nconf->dot11MeshHWMPperrMinInterval; 2044 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2045 mask)) 2046 conf->dot11MeshHWMPnetDiameterTraversalTime = 2047 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2048 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2049 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2050 ieee80211_mesh_root_setup(ifmsh); 2051 } 2052 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2053 /* our current gate announcement implementation rides on root 2054 * announcements, so require this ifmsh to also be a root node 2055 * */ 2056 if (nconf->dot11MeshGateAnnouncementProtocol && 2057 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2058 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2059 ieee80211_mesh_root_setup(ifmsh); 2060 } 2061 conf->dot11MeshGateAnnouncementProtocol = 2062 nconf->dot11MeshGateAnnouncementProtocol; 2063 } 2064 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2065 conf->dot11MeshHWMPRannInterval = 2066 nconf->dot11MeshHWMPRannInterval; 2067 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2068 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2069 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2070 /* our RSSI threshold implementation is supported only for 2071 * devices that report signal in dBm. 2072 */ 2073 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2074 return -ENOTSUPP; 2075 conf->rssi_threshold = nconf->rssi_threshold; 2076 } 2077 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2078 conf->ht_opmode = nconf->ht_opmode; 2079 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2080 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2081 } 2082 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2083 conf->dot11MeshHWMPactivePathToRootTimeout = 2084 nconf->dot11MeshHWMPactivePathToRootTimeout; 2085 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2086 conf->dot11MeshHWMProotInterval = 2087 nconf->dot11MeshHWMProotInterval; 2088 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2089 conf->dot11MeshHWMPconfirmationInterval = 2090 nconf->dot11MeshHWMPconfirmationInterval; 2091 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2092 conf->power_mode = nconf->power_mode; 2093 ieee80211_mps_local_status_update(sdata); 2094 } 2095 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2096 conf->dot11MeshAwakeWindowDuration = 2097 nconf->dot11MeshAwakeWindowDuration; 2098 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2099 conf->plink_timeout = nconf->plink_timeout; 2100 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2101 conf->dot11MeshConnectedToMeshGate = 2102 nconf->dot11MeshConnectedToMeshGate; 2103 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2104 return 0; 2105 } 2106 2107 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2108 const struct mesh_config *conf, 2109 const struct mesh_setup *setup) 2110 { 2111 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2112 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2113 int err; 2114 2115 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2116 err = copy_mesh_setup(ifmsh, setup); 2117 if (err) 2118 return err; 2119 2120 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2121 2122 /* can mesh use other SMPS modes? */ 2123 sdata->smps_mode = IEEE80211_SMPS_OFF; 2124 sdata->needed_rx_chains = sdata->local->rx_chains; 2125 2126 mutex_lock(&sdata->local->mtx); 2127 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2128 IEEE80211_CHANCTX_SHARED); 2129 mutex_unlock(&sdata->local->mtx); 2130 if (err) 2131 return err; 2132 2133 return ieee80211_start_mesh(sdata); 2134 } 2135 2136 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2137 { 2138 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2139 2140 ieee80211_stop_mesh(sdata); 2141 mutex_lock(&sdata->local->mtx); 2142 ieee80211_vif_release_channel(sdata); 2143 mutex_unlock(&sdata->local->mtx); 2144 2145 return 0; 2146 } 2147 #endif 2148 2149 static int ieee80211_change_bss(struct wiphy *wiphy, 2150 struct net_device *dev, 2151 struct bss_parameters *params) 2152 { 2153 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2154 struct ieee80211_supported_band *sband; 2155 u32 changed = 0; 2156 2157 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2158 return -ENOENT; 2159 2160 sband = ieee80211_get_sband(sdata); 2161 if (!sband) 2162 return -EINVAL; 2163 2164 if (params->use_cts_prot >= 0) { 2165 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2166 changed |= BSS_CHANGED_ERP_CTS_PROT; 2167 } 2168 if (params->use_short_preamble >= 0) { 2169 sdata->vif.bss_conf.use_short_preamble = 2170 params->use_short_preamble; 2171 changed |= BSS_CHANGED_ERP_PREAMBLE; 2172 } 2173 2174 if (!sdata->vif.bss_conf.use_short_slot && 2175 sband->band == NL80211_BAND_5GHZ) { 2176 sdata->vif.bss_conf.use_short_slot = true; 2177 changed |= BSS_CHANGED_ERP_SLOT; 2178 } 2179 2180 if (params->use_short_slot_time >= 0) { 2181 sdata->vif.bss_conf.use_short_slot = 2182 params->use_short_slot_time; 2183 changed |= BSS_CHANGED_ERP_SLOT; 2184 } 2185 2186 if (params->basic_rates) { 2187 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2188 wiphy->bands[sband->band], 2189 params->basic_rates, 2190 params->basic_rates_len, 2191 &sdata->vif.bss_conf.basic_rates); 2192 changed |= BSS_CHANGED_BASIC_RATES; 2193 ieee80211_check_rate_mask(sdata); 2194 } 2195 2196 if (params->ap_isolate >= 0) { 2197 if (params->ap_isolate) 2198 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2199 else 2200 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2201 ieee80211_check_fast_rx_iface(sdata); 2202 } 2203 2204 if (params->ht_opmode >= 0) { 2205 sdata->vif.bss_conf.ht_operation_mode = 2206 (u16) params->ht_opmode; 2207 changed |= BSS_CHANGED_HT; 2208 } 2209 2210 if (params->p2p_ctwindow >= 0) { 2211 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2212 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2213 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2214 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2215 changed |= BSS_CHANGED_P2P_PS; 2216 } 2217 2218 if (params->p2p_opp_ps > 0) { 2219 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2220 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2221 changed |= BSS_CHANGED_P2P_PS; 2222 } else if (params->p2p_opp_ps == 0) { 2223 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2224 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2225 changed |= BSS_CHANGED_P2P_PS; 2226 } 2227 2228 ieee80211_bss_info_change_notify(sdata, changed); 2229 2230 return 0; 2231 } 2232 2233 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2234 struct net_device *dev, 2235 struct ieee80211_txq_params *params) 2236 { 2237 struct ieee80211_local *local = wiphy_priv(wiphy); 2238 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2239 struct ieee80211_tx_queue_params p; 2240 2241 if (!local->ops->conf_tx) 2242 return -EOPNOTSUPP; 2243 2244 if (local->hw.queues < IEEE80211_NUM_ACS) 2245 return -EOPNOTSUPP; 2246 2247 memset(&p, 0, sizeof(p)); 2248 p.aifs = params->aifs; 2249 p.cw_max = params->cwmax; 2250 p.cw_min = params->cwmin; 2251 p.txop = params->txop; 2252 2253 /* 2254 * Setting tx queue params disables u-apsd because it's only 2255 * called in master mode. 2256 */ 2257 p.uapsd = false; 2258 2259 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2260 2261 sdata->tx_conf[params->ac] = p; 2262 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2263 wiphy_debug(local->hw.wiphy, 2264 "failed to set TX queue parameters for AC %d\n", 2265 params->ac); 2266 return -EINVAL; 2267 } 2268 2269 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2270 2271 return 0; 2272 } 2273 2274 #ifdef CONFIG_PM 2275 static int ieee80211_suspend(struct wiphy *wiphy, 2276 struct cfg80211_wowlan *wowlan) 2277 { 2278 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2279 } 2280 2281 static int ieee80211_resume(struct wiphy *wiphy) 2282 { 2283 return __ieee80211_resume(wiphy_priv(wiphy)); 2284 } 2285 #else 2286 #define ieee80211_suspend NULL 2287 #define ieee80211_resume NULL 2288 #endif 2289 2290 static int ieee80211_scan(struct wiphy *wiphy, 2291 struct cfg80211_scan_request *req) 2292 { 2293 struct ieee80211_sub_if_data *sdata; 2294 2295 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2296 2297 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2298 case NL80211_IFTYPE_STATION: 2299 case NL80211_IFTYPE_ADHOC: 2300 case NL80211_IFTYPE_MESH_POINT: 2301 case NL80211_IFTYPE_P2P_CLIENT: 2302 case NL80211_IFTYPE_P2P_DEVICE: 2303 break; 2304 case NL80211_IFTYPE_P2P_GO: 2305 if (sdata->local->ops->hw_scan) 2306 break; 2307 /* 2308 * FIXME: implement NoA while scanning in software, 2309 * for now fall through to allow scanning only when 2310 * beaconing hasn't been configured yet 2311 */ 2312 /* fall through */ 2313 case NL80211_IFTYPE_AP: 2314 /* 2315 * If the scan has been forced (and the driver supports 2316 * forcing), don't care about being beaconing already. 2317 * This will create problems to the attached stations (e.g. all 2318 * the frames sent while scanning on other channel will be 2319 * lost) 2320 */ 2321 if (sdata->u.ap.beacon && 2322 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2323 !(req->flags & NL80211_SCAN_FLAG_AP))) 2324 return -EOPNOTSUPP; 2325 break; 2326 case NL80211_IFTYPE_NAN: 2327 default: 2328 return -EOPNOTSUPP; 2329 } 2330 2331 return ieee80211_request_scan(sdata, req); 2332 } 2333 2334 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2335 { 2336 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2337 } 2338 2339 static int 2340 ieee80211_sched_scan_start(struct wiphy *wiphy, 2341 struct net_device *dev, 2342 struct cfg80211_sched_scan_request *req) 2343 { 2344 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2345 2346 if (!sdata->local->ops->sched_scan_start) 2347 return -EOPNOTSUPP; 2348 2349 return ieee80211_request_sched_scan_start(sdata, req); 2350 } 2351 2352 static int 2353 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2354 u64 reqid) 2355 { 2356 struct ieee80211_local *local = wiphy_priv(wiphy); 2357 2358 if (!local->ops->sched_scan_stop) 2359 return -EOPNOTSUPP; 2360 2361 return ieee80211_request_sched_scan_stop(local); 2362 } 2363 2364 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2365 struct cfg80211_auth_request *req) 2366 { 2367 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2368 } 2369 2370 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2371 struct cfg80211_assoc_request *req) 2372 { 2373 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2374 } 2375 2376 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2377 struct cfg80211_deauth_request *req) 2378 { 2379 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2380 } 2381 2382 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2383 struct cfg80211_disassoc_request *req) 2384 { 2385 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2386 } 2387 2388 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2389 struct cfg80211_ibss_params *params) 2390 { 2391 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2392 } 2393 2394 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2395 { 2396 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2397 } 2398 2399 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2400 struct ocb_setup *setup) 2401 { 2402 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2403 } 2404 2405 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2406 { 2407 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2408 } 2409 2410 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2411 int rate[NUM_NL80211_BANDS]) 2412 { 2413 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2414 2415 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2416 sizeof(int) * NUM_NL80211_BANDS); 2417 2418 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2419 2420 return 0; 2421 } 2422 2423 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2424 { 2425 struct ieee80211_local *local = wiphy_priv(wiphy); 2426 int err; 2427 2428 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2429 ieee80211_check_fast_xmit_all(local); 2430 2431 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2432 2433 if (err) { 2434 ieee80211_check_fast_xmit_all(local); 2435 return err; 2436 } 2437 } 2438 2439 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2440 (changed & WIPHY_PARAM_DYN_ACK)) { 2441 s16 coverage_class; 2442 2443 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2444 wiphy->coverage_class : -1; 2445 err = drv_set_coverage_class(local, coverage_class); 2446 2447 if (err) 2448 return err; 2449 } 2450 2451 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2452 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2453 2454 if (err) 2455 return err; 2456 } 2457 2458 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2459 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2460 return -EINVAL; 2461 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2462 } 2463 if (changed & WIPHY_PARAM_RETRY_LONG) { 2464 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2465 return -EINVAL; 2466 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2467 } 2468 if (changed & 2469 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2470 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2471 2472 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2473 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2474 WIPHY_PARAM_TXQ_QUANTUM)) 2475 ieee80211_txq_set_params(local); 2476 2477 return 0; 2478 } 2479 2480 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2481 struct wireless_dev *wdev, 2482 enum nl80211_tx_power_setting type, int mbm) 2483 { 2484 struct ieee80211_local *local = wiphy_priv(wiphy); 2485 struct ieee80211_sub_if_data *sdata; 2486 enum nl80211_tx_power_setting txp_type = type; 2487 bool update_txp_type = false; 2488 bool has_monitor = false; 2489 2490 if (wdev) { 2491 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2492 2493 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2494 sdata = rtnl_dereference(local->monitor_sdata); 2495 if (!sdata) 2496 return -EOPNOTSUPP; 2497 } 2498 2499 switch (type) { 2500 case NL80211_TX_POWER_AUTOMATIC: 2501 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2502 txp_type = NL80211_TX_POWER_LIMITED; 2503 break; 2504 case NL80211_TX_POWER_LIMITED: 2505 case NL80211_TX_POWER_FIXED: 2506 if (mbm < 0 || (mbm % 100)) 2507 return -EOPNOTSUPP; 2508 sdata->user_power_level = MBM_TO_DBM(mbm); 2509 break; 2510 } 2511 2512 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2513 update_txp_type = true; 2514 sdata->vif.bss_conf.txpower_type = txp_type; 2515 } 2516 2517 ieee80211_recalc_txpower(sdata, update_txp_type); 2518 2519 return 0; 2520 } 2521 2522 switch (type) { 2523 case NL80211_TX_POWER_AUTOMATIC: 2524 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2525 txp_type = NL80211_TX_POWER_LIMITED; 2526 break; 2527 case NL80211_TX_POWER_LIMITED: 2528 case NL80211_TX_POWER_FIXED: 2529 if (mbm < 0 || (mbm % 100)) 2530 return -EOPNOTSUPP; 2531 local->user_power_level = MBM_TO_DBM(mbm); 2532 break; 2533 } 2534 2535 mutex_lock(&local->iflist_mtx); 2536 list_for_each_entry(sdata, &local->interfaces, list) { 2537 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2538 has_monitor = true; 2539 continue; 2540 } 2541 sdata->user_power_level = local->user_power_level; 2542 if (txp_type != sdata->vif.bss_conf.txpower_type) 2543 update_txp_type = true; 2544 sdata->vif.bss_conf.txpower_type = txp_type; 2545 } 2546 list_for_each_entry(sdata, &local->interfaces, list) { 2547 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2548 continue; 2549 ieee80211_recalc_txpower(sdata, update_txp_type); 2550 } 2551 mutex_unlock(&local->iflist_mtx); 2552 2553 if (has_monitor) { 2554 sdata = rtnl_dereference(local->monitor_sdata); 2555 if (sdata) { 2556 sdata->user_power_level = local->user_power_level; 2557 if (txp_type != sdata->vif.bss_conf.txpower_type) 2558 update_txp_type = true; 2559 sdata->vif.bss_conf.txpower_type = txp_type; 2560 2561 ieee80211_recalc_txpower(sdata, update_txp_type); 2562 } 2563 } 2564 2565 return 0; 2566 } 2567 2568 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2569 struct wireless_dev *wdev, 2570 int *dbm) 2571 { 2572 struct ieee80211_local *local = wiphy_priv(wiphy); 2573 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2574 2575 if (local->ops->get_txpower) 2576 return drv_get_txpower(local, sdata, dbm); 2577 2578 if (!local->use_chanctx) 2579 *dbm = local->hw.conf.power_level; 2580 else 2581 *dbm = sdata->vif.bss_conf.txpower; 2582 2583 return 0; 2584 } 2585 2586 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2587 const u8 *addr) 2588 { 2589 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2590 2591 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2592 2593 return 0; 2594 } 2595 2596 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2597 { 2598 struct ieee80211_local *local = wiphy_priv(wiphy); 2599 2600 drv_rfkill_poll(local); 2601 } 2602 2603 #ifdef CONFIG_NL80211_TESTMODE 2604 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2605 struct wireless_dev *wdev, 2606 void *data, int len) 2607 { 2608 struct ieee80211_local *local = wiphy_priv(wiphy); 2609 struct ieee80211_vif *vif = NULL; 2610 2611 if (!local->ops->testmode_cmd) 2612 return -EOPNOTSUPP; 2613 2614 if (wdev) { 2615 struct ieee80211_sub_if_data *sdata; 2616 2617 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2618 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2619 vif = &sdata->vif; 2620 } 2621 2622 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2623 } 2624 2625 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2626 struct sk_buff *skb, 2627 struct netlink_callback *cb, 2628 void *data, int len) 2629 { 2630 struct ieee80211_local *local = wiphy_priv(wiphy); 2631 2632 if (!local->ops->testmode_dump) 2633 return -EOPNOTSUPP; 2634 2635 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2636 } 2637 #endif 2638 2639 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2640 enum ieee80211_smps_mode smps_mode) 2641 { 2642 const u8 *ap; 2643 enum ieee80211_smps_mode old_req; 2644 int err; 2645 struct sta_info *sta; 2646 bool tdls_peer_found = false; 2647 2648 lockdep_assert_held(&sdata->wdev.mtx); 2649 2650 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2651 return -EINVAL; 2652 2653 old_req = sdata->u.mgd.req_smps; 2654 sdata->u.mgd.req_smps = smps_mode; 2655 2656 if (old_req == smps_mode && 2657 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2658 return 0; 2659 2660 /* 2661 * If not associated, or current association is not an HT 2662 * association, there's no need to do anything, just store 2663 * the new value until we associate. 2664 */ 2665 if (!sdata->u.mgd.associated || 2666 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2667 return 0; 2668 2669 ap = sdata->u.mgd.associated->bssid; 2670 2671 rcu_read_lock(); 2672 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2673 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2674 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2675 continue; 2676 2677 tdls_peer_found = true; 2678 break; 2679 } 2680 rcu_read_unlock(); 2681 2682 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2683 if (tdls_peer_found || !sdata->u.mgd.powersave) 2684 smps_mode = IEEE80211_SMPS_OFF; 2685 else 2686 smps_mode = IEEE80211_SMPS_DYNAMIC; 2687 } 2688 2689 /* send SM PS frame to AP */ 2690 err = ieee80211_send_smps_action(sdata, smps_mode, 2691 ap, ap); 2692 if (err) 2693 sdata->u.mgd.req_smps = old_req; 2694 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2695 ieee80211_teardown_tdls_peers(sdata); 2696 2697 return err; 2698 } 2699 2700 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2701 bool enabled, int timeout) 2702 { 2703 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2704 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2705 2706 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2707 return -EOPNOTSUPP; 2708 2709 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2710 return -EOPNOTSUPP; 2711 2712 if (enabled == sdata->u.mgd.powersave && 2713 timeout == local->dynamic_ps_forced_timeout) 2714 return 0; 2715 2716 sdata->u.mgd.powersave = enabled; 2717 local->dynamic_ps_forced_timeout = timeout; 2718 2719 /* no change, but if automatic follow powersave */ 2720 sdata_lock(sdata); 2721 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2722 sdata_unlock(sdata); 2723 2724 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2725 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2726 2727 ieee80211_recalc_ps(local); 2728 ieee80211_recalc_ps_vif(sdata); 2729 ieee80211_check_fast_rx_iface(sdata); 2730 2731 return 0; 2732 } 2733 2734 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2735 struct net_device *dev, 2736 s32 rssi_thold, u32 rssi_hyst) 2737 { 2738 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2739 struct ieee80211_vif *vif = &sdata->vif; 2740 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2741 2742 if (rssi_thold == bss_conf->cqm_rssi_thold && 2743 rssi_hyst == bss_conf->cqm_rssi_hyst) 2744 return 0; 2745 2746 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2747 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2748 return -EOPNOTSUPP; 2749 2750 bss_conf->cqm_rssi_thold = rssi_thold; 2751 bss_conf->cqm_rssi_hyst = rssi_hyst; 2752 bss_conf->cqm_rssi_low = 0; 2753 bss_conf->cqm_rssi_high = 0; 2754 sdata->u.mgd.last_cqm_event_signal = 0; 2755 2756 /* tell the driver upon association, unless already associated */ 2757 if (sdata->u.mgd.associated && 2758 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2759 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2760 2761 return 0; 2762 } 2763 2764 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2765 struct net_device *dev, 2766 s32 rssi_low, s32 rssi_high) 2767 { 2768 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2769 struct ieee80211_vif *vif = &sdata->vif; 2770 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2771 2772 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2773 return -EOPNOTSUPP; 2774 2775 bss_conf->cqm_rssi_low = rssi_low; 2776 bss_conf->cqm_rssi_high = rssi_high; 2777 bss_conf->cqm_rssi_thold = 0; 2778 bss_conf->cqm_rssi_hyst = 0; 2779 sdata->u.mgd.last_cqm_event_signal = 0; 2780 2781 /* tell the driver upon association, unless already associated */ 2782 if (sdata->u.mgd.associated && 2783 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2784 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2785 2786 return 0; 2787 } 2788 2789 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2790 struct net_device *dev, 2791 const u8 *addr, 2792 const struct cfg80211_bitrate_mask *mask) 2793 { 2794 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2795 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2796 int i, ret; 2797 2798 if (!ieee80211_sdata_running(sdata)) 2799 return -ENETDOWN; 2800 2801 /* 2802 * If active validate the setting and reject it if it doesn't leave 2803 * at least one basic rate usable, since we really have to be able 2804 * to send something, and if we're an AP we have to be able to do 2805 * so at a basic rate so that all clients can receive it. 2806 */ 2807 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2808 sdata->vif.bss_conf.chandef.chan) { 2809 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2810 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2811 2812 if (!(mask->control[band].legacy & basic_rates)) 2813 return -EINVAL; 2814 } 2815 2816 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2817 ret = drv_set_bitrate_mask(local, sdata, mask); 2818 if (ret) 2819 return ret; 2820 } 2821 2822 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2823 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2824 int j; 2825 2826 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2827 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2828 sizeof(mask->control[i].ht_mcs)); 2829 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2830 mask->control[i].vht_mcs, 2831 sizeof(mask->control[i].vht_mcs)); 2832 2833 sdata->rc_has_mcs_mask[i] = false; 2834 sdata->rc_has_vht_mcs_mask[i] = false; 2835 if (!sband) 2836 continue; 2837 2838 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2839 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2840 sdata->rc_has_mcs_mask[i] = true; 2841 break; 2842 } 2843 } 2844 2845 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2846 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2847 sdata->rc_has_vht_mcs_mask[i] = true; 2848 break; 2849 } 2850 } 2851 } 2852 2853 return 0; 2854 } 2855 2856 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2857 struct net_device *dev, 2858 struct cfg80211_chan_def *chandef, 2859 u32 cac_time_ms) 2860 { 2861 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2862 struct ieee80211_local *local = sdata->local; 2863 int err; 2864 2865 mutex_lock(&local->mtx); 2866 if (!list_empty(&local->roc_list) || local->scanning) { 2867 err = -EBUSY; 2868 goto out_unlock; 2869 } 2870 2871 /* whatever, but channel contexts should not complain about that one */ 2872 sdata->smps_mode = IEEE80211_SMPS_OFF; 2873 sdata->needed_rx_chains = local->rx_chains; 2874 2875 err = ieee80211_vif_use_channel(sdata, chandef, 2876 IEEE80211_CHANCTX_SHARED); 2877 if (err) 2878 goto out_unlock; 2879 2880 ieee80211_queue_delayed_work(&sdata->local->hw, 2881 &sdata->dfs_cac_timer_work, 2882 msecs_to_jiffies(cac_time_ms)); 2883 2884 out_unlock: 2885 mutex_unlock(&local->mtx); 2886 return err; 2887 } 2888 2889 static void ieee80211_end_cac(struct wiphy *wiphy, 2890 struct net_device *dev) 2891 { 2892 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2893 struct ieee80211_local *local = sdata->local; 2894 2895 mutex_lock(&local->mtx); 2896 list_for_each_entry(sdata, &local->interfaces, list) { 2897 /* it might be waiting for the local->mtx, but then 2898 * by the time it gets it, sdata->wdev.cac_started 2899 * will no longer be true 2900 */ 2901 cancel_delayed_work(&sdata->dfs_cac_timer_work); 2902 2903 if (sdata->wdev.cac_started) { 2904 ieee80211_vif_release_channel(sdata); 2905 sdata->wdev.cac_started = false; 2906 } 2907 } 2908 mutex_unlock(&local->mtx); 2909 } 2910 2911 static struct cfg80211_beacon_data * 2912 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2913 { 2914 struct cfg80211_beacon_data *new_beacon; 2915 u8 *pos; 2916 int len; 2917 2918 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2919 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2920 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 2921 2922 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2923 if (!new_beacon) 2924 return NULL; 2925 2926 pos = (u8 *)(new_beacon + 1); 2927 if (beacon->head_len) { 2928 new_beacon->head_len = beacon->head_len; 2929 new_beacon->head = pos; 2930 memcpy(pos, beacon->head, beacon->head_len); 2931 pos += beacon->head_len; 2932 } 2933 if (beacon->tail_len) { 2934 new_beacon->tail_len = beacon->tail_len; 2935 new_beacon->tail = pos; 2936 memcpy(pos, beacon->tail, beacon->tail_len); 2937 pos += beacon->tail_len; 2938 } 2939 if (beacon->beacon_ies_len) { 2940 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2941 new_beacon->beacon_ies = pos; 2942 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2943 pos += beacon->beacon_ies_len; 2944 } 2945 if (beacon->proberesp_ies_len) { 2946 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2947 new_beacon->proberesp_ies = pos; 2948 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2949 pos += beacon->proberesp_ies_len; 2950 } 2951 if (beacon->assocresp_ies_len) { 2952 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2953 new_beacon->assocresp_ies = pos; 2954 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2955 pos += beacon->assocresp_ies_len; 2956 } 2957 if (beacon->probe_resp_len) { 2958 new_beacon->probe_resp_len = beacon->probe_resp_len; 2959 new_beacon->probe_resp = pos; 2960 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 2961 pos += beacon->probe_resp_len; 2962 } 2963 2964 /* might copy -1, meaning no changes requested */ 2965 new_beacon->ftm_responder = beacon->ftm_responder; 2966 if (beacon->lci) { 2967 new_beacon->lci_len = beacon->lci_len; 2968 new_beacon->lci = pos; 2969 memcpy(pos, beacon->lci, beacon->lci_len); 2970 pos += beacon->lci_len; 2971 } 2972 if (beacon->civicloc) { 2973 new_beacon->civicloc_len = beacon->civicloc_len; 2974 new_beacon->civicloc = pos; 2975 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 2976 pos += beacon->civicloc_len; 2977 } 2978 2979 return new_beacon; 2980 } 2981 2982 void ieee80211_csa_finish(struct ieee80211_vif *vif) 2983 { 2984 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 2985 2986 ieee80211_queue_work(&sdata->local->hw, 2987 &sdata->csa_finalize_work); 2988 } 2989 EXPORT_SYMBOL(ieee80211_csa_finish); 2990 2991 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 2992 u32 *changed) 2993 { 2994 int err; 2995 2996 switch (sdata->vif.type) { 2997 case NL80211_IFTYPE_AP: 2998 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 2999 NULL); 3000 kfree(sdata->u.ap.next_beacon); 3001 sdata->u.ap.next_beacon = NULL; 3002 3003 if (err < 0) 3004 return err; 3005 *changed |= err; 3006 break; 3007 case NL80211_IFTYPE_ADHOC: 3008 err = ieee80211_ibss_finish_csa(sdata); 3009 if (err < 0) 3010 return err; 3011 *changed |= err; 3012 break; 3013 #ifdef CONFIG_MAC80211_MESH 3014 case NL80211_IFTYPE_MESH_POINT: 3015 err = ieee80211_mesh_finish_csa(sdata); 3016 if (err < 0) 3017 return err; 3018 *changed |= err; 3019 break; 3020 #endif 3021 default: 3022 WARN_ON(1); 3023 return -EINVAL; 3024 } 3025 3026 return 0; 3027 } 3028 3029 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3030 { 3031 struct ieee80211_local *local = sdata->local; 3032 u32 changed = 0; 3033 int err; 3034 3035 sdata_assert_lock(sdata); 3036 lockdep_assert_held(&local->mtx); 3037 lockdep_assert_held(&local->chanctx_mtx); 3038 3039 /* 3040 * using reservation isn't immediate as it may be deferred until later 3041 * with multi-vif. once reservation is complete it will re-schedule the 3042 * work with no reserved_chanctx so verify chandef to check if it 3043 * completed successfully 3044 */ 3045 3046 if (sdata->reserved_chanctx) { 3047 /* 3048 * with multi-vif csa driver may call ieee80211_csa_finish() 3049 * many times while waiting for other interfaces to use their 3050 * reservations 3051 */ 3052 if (sdata->reserved_ready) 3053 return 0; 3054 3055 return ieee80211_vif_use_reserved_context(sdata); 3056 } 3057 3058 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3059 &sdata->csa_chandef)) 3060 return -EINVAL; 3061 3062 sdata->vif.csa_active = false; 3063 3064 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3065 if (err) 3066 return err; 3067 3068 ieee80211_bss_info_change_notify(sdata, changed); 3069 3070 if (sdata->csa_block_tx) { 3071 ieee80211_wake_vif_queues(local, sdata, 3072 IEEE80211_QUEUE_STOP_REASON_CSA); 3073 sdata->csa_block_tx = false; 3074 } 3075 3076 err = drv_post_channel_switch(sdata); 3077 if (err) 3078 return err; 3079 3080 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3081 3082 return 0; 3083 } 3084 3085 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3086 { 3087 if (__ieee80211_csa_finalize(sdata)) { 3088 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3089 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3090 GFP_KERNEL); 3091 } 3092 } 3093 3094 void ieee80211_csa_finalize_work(struct work_struct *work) 3095 { 3096 struct ieee80211_sub_if_data *sdata = 3097 container_of(work, struct ieee80211_sub_if_data, 3098 csa_finalize_work); 3099 struct ieee80211_local *local = sdata->local; 3100 3101 sdata_lock(sdata); 3102 mutex_lock(&local->mtx); 3103 mutex_lock(&local->chanctx_mtx); 3104 3105 /* AP might have been stopped while waiting for the lock. */ 3106 if (!sdata->vif.csa_active) 3107 goto unlock; 3108 3109 if (!ieee80211_sdata_running(sdata)) 3110 goto unlock; 3111 3112 ieee80211_csa_finalize(sdata); 3113 3114 unlock: 3115 mutex_unlock(&local->chanctx_mtx); 3116 mutex_unlock(&local->mtx); 3117 sdata_unlock(sdata); 3118 } 3119 3120 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3121 struct cfg80211_csa_settings *params, 3122 u32 *changed) 3123 { 3124 struct ieee80211_csa_settings csa = {}; 3125 int err; 3126 3127 switch (sdata->vif.type) { 3128 case NL80211_IFTYPE_AP: 3129 sdata->u.ap.next_beacon = 3130 cfg80211_beacon_dup(¶ms->beacon_after); 3131 if (!sdata->u.ap.next_beacon) 3132 return -ENOMEM; 3133 3134 /* 3135 * With a count of 0, we don't have to wait for any 3136 * TBTT before switching, so complete the CSA 3137 * immediately. In theory, with a count == 1 we 3138 * should delay the switch until just before the next 3139 * TBTT, but that would complicate things so we switch 3140 * immediately too. If we would delay the switch 3141 * until the next TBTT, we would have to set the probe 3142 * response here. 3143 * 3144 * TODO: A channel switch with count <= 1 without 3145 * sending a CSA action frame is kind of useless, 3146 * because the clients won't know we're changing 3147 * channels. The action frame must be implemented 3148 * either here or in the userspace. 3149 */ 3150 if (params->count <= 1) 3151 break; 3152 3153 if ((params->n_counter_offsets_beacon > 3154 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3155 (params->n_counter_offsets_presp > 3156 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3157 return -EINVAL; 3158 3159 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3160 csa.counter_offsets_presp = params->counter_offsets_presp; 3161 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3162 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3163 csa.count = params->count; 3164 3165 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3166 if (err < 0) { 3167 kfree(sdata->u.ap.next_beacon); 3168 return err; 3169 } 3170 *changed |= err; 3171 3172 break; 3173 case NL80211_IFTYPE_ADHOC: 3174 if (!sdata->vif.bss_conf.ibss_joined) 3175 return -EINVAL; 3176 3177 if (params->chandef.width != sdata->u.ibss.chandef.width) 3178 return -EINVAL; 3179 3180 switch (params->chandef.width) { 3181 case NL80211_CHAN_WIDTH_40: 3182 if (cfg80211_get_chandef_type(¶ms->chandef) != 3183 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3184 return -EINVAL; 3185 case NL80211_CHAN_WIDTH_5: 3186 case NL80211_CHAN_WIDTH_10: 3187 case NL80211_CHAN_WIDTH_20_NOHT: 3188 case NL80211_CHAN_WIDTH_20: 3189 break; 3190 default: 3191 return -EINVAL; 3192 } 3193 3194 /* changes into another band are not supported */ 3195 if (sdata->u.ibss.chandef.chan->band != 3196 params->chandef.chan->band) 3197 return -EINVAL; 3198 3199 /* see comments in the NL80211_IFTYPE_AP block */ 3200 if (params->count > 1) { 3201 err = ieee80211_ibss_csa_beacon(sdata, params); 3202 if (err < 0) 3203 return err; 3204 *changed |= err; 3205 } 3206 3207 ieee80211_send_action_csa(sdata, params); 3208 3209 break; 3210 #ifdef CONFIG_MAC80211_MESH 3211 case NL80211_IFTYPE_MESH_POINT: { 3212 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3213 3214 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3215 return -EINVAL; 3216 3217 /* changes into another band are not supported */ 3218 if (sdata->vif.bss_conf.chandef.chan->band != 3219 params->chandef.chan->band) 3220 return -EINVAL; 3221 3222 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3223 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3224 if (!ifmsh->pre_value) 3225 ifmsh->pre_value = 1; 3226 else 3227 ifmsh->pre_value++; 3228 } 3229 3230 /* see comments in the NL80211_IFTYPE_AP block */ 3231 if (params->count > 1) { 3232 err = ieee80211_mesh_csa_beacon(sdata, params); 3233 if (err < 0) { 3234 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3235 return err; 3236 } 3237 *changed |= err; 3238 } 3239 3240 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3241 ieee80211_send_action_csa(sdata, params); 3242 3243 break; 3244 } 3245 #endif 3246 default: 3247 return -EOPNOTSUPP; 3248 } 3249 3250 return 0; 3251 } 3252 3253 static int 3254 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3255 struct cfg80211_csa_settings *params) 3256 { 3257 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3258 struct ieee80211_local *local = sdata->local; 3259 struct ieee80211_channel_switch ch_switch; 3260 struct ieee80211_chanctx_conf *conf; 3261 struct ieee80211_chanctx *chanctx; 3262 u32 changed = 0; 3263 int err; 3264 3265 sdata_assert_lock(sdata); 3266 lockdep_assert_held(&local->mtx); 3267 3268 if (!list_empty(&local->roc_list) || local->scanning) 3269 return -EBUSY; 3270 3271 if (sdata->wdev.cac_started) 3272 return -EBUSY; 3273 3274 if (cfg80211_chandef_identical(¶ms->chandef, 3275 &sdata->vif.bss_conf.chandef)) 3276 return -EINVAL; 3277 3278 /* don't allow another channel switch if one is already active. */ 3279 if (sdata->vif.csa_active) 3280 return -EBUSY; 3281 3282 mutex_lock(&local->chanctx_mtx); 3283 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3284 lockdep_is_held(&local->chanctx_mtx)); 3285 if (!conf) { 3286 err = -EBUSY; 3287 goto out; 3288 } 3289 3290 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3291 3292 ch_switch.timestamp = 0; 3293 ch_switch.device_timestamp = 0; 3294 ch_switch.block_tx = params->block_tx; 3295 ch_switch.chandef = params->chandef; 3296 ch_switch.count = params->count; 3297 3298 err = drv_pre_channel_switch(sdata, &ch_switch); 3299 if (err) 3300 goto out; 3301 3302 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3303 chanctx->mode, 3304 params->radar_required); 3305 if (err) 3306 goto out; 3307 3308 /* if reservation is invalid then this will fail */ 3309 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3310 if (err) { 3311 ieee80211_vif_unreserve_chanctx(sdata); 3312 goto out; 3313 } 3314 3315 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3316 if (err) { 3317 ieee80211_vif_unreserve_chanctx(sdata); 3318 goto out; 3319 } 3320 3321 sdata->csa_chandef = params->chandef; 3322 sdata->csa_block_tx = params->block_tx; 3323 sdata->vif.csa_active = true; 3324 3325 if (sdata->csa_block_tx) 3326 ieee80211_stop_vif_queues(local, sdata, 3327 IEEE80211_QUEUE_STOP_REASON_CSA); 3328 3329 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3330 params->count); 3331 3332 if (changed) { 3333 ieee80211_bss_info_change_notify(sdata, changed); 3334 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3335 } else { 3336 /* if the beacon didn't change, we can finalize immediately */ 3337 ieee80211_csa_finalize(sdata); 3338 } 3339 3340 out: 3341 mutex_unlock(&local->chanctx_mtx); 3342 return err; 3343 } 3344 3345 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3346 struct cfg80211_csa_settings *params) 3347 { 3348 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3349 struct ieee80211_local *local = sdata->local; 3350 int err; 3351 3352 mutex_lock(&local->mtx); 3353 err = __ieee80211_channel_switch(wiphy, dev, params); 3354 mutex_unlock(&local->mtx); 3355 3356 return err; 3357 } 3358 3359 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3360 { 3361 lockdep_assert_held(&local->mtx); 3362 3363 local->roc_cookie_counter++; 3364 3365 /* wow, you wrapped 64 bits ... more likely a bug */ 3366 if (WARN_ON(local->roc_cookie_counter == 0)) 3367 local->roc_cookie_counter++; 3368 3369 return local->roc_cookie_counter; 3370 } 3371 3372 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3373 u64 *cookie, gfp_t gfp) 3374 { 3375 unsigned long spin_flags; 3376 struct sk_buff *ack_skb; 3377 int id; 3378 3379 ack_skb = skb_copy(skb, gfp); 3380 if (!ack_skb) 3381 return -ENOMEM; 3382 3383 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3384 id = idr_alloc(&local->ack_status_frames, ack_skb, 3385 1, 0x2000, GFP_ATOMIC); 3386 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3387 3388 if (id < 0) { 3389 kfree_skb(ack_skb); 3390 return -ENOMEM; 3391 } 3392 3393 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3394 3395 *cookie = ieee80211_mgmt_tx_cookie(local); 3396 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3397 3398 return 0; 3399 } 3400 3401 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3402 struct wireless_dev *wdev, 3403 u16 frame_type, bool reg) 3404 { 3405 struct ieee80211_local *local = wiphy_priv(wiphy); 3406 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3407 3408 switch (frame_type) { 3409 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3410 if (reg) { 3411 local->probe_req_reg++; 3412 sdata->vif.probe_req_reg++; 3413 } else { 3414 if (local->probe_req_reg) 3415 local->probe_req_reg--; 3416 3417 if (sdata->vif.probe_req_reg) 3418 sdata->vif.probe_req_reg--; 3419 } 3420 3421 if (!local->open_count) 3422 break; 3423 3424 if (sdata->vif.probe_req_reg == 1) 3425 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ, 3426 FIF_PROBE_REQ); 3427 else if (sdata->vif.probe_req_reg == 0) 3428 drv_config_iface_filter(local, sdata, 0, 3429 FIF_PROBE_REQ); 3430 3431 ieee80211_configure_filter(local); 3432 break; 3433 default: 3434 break; 3435 } 3436 } 3437 3438 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3439 { 3440 struct ieee80211_local *local = wiphy_priv(wiphy); 3441 3442 if (local->started) 3443 return -EOPNOTSUPP; 3444 3445 return drv_set_antenna(local, tx_ant, rx_ant); 3446 } 3447 3448 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3449 { 3450 struct ieee80211_local *local = wiphy_priv(wiphy); 3451 3452 return drv_get_antenna(local, tx_ant, rx_ant); 3453 } 3454 3455 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3456 struct net_device *dev, 3457 struct cfg80211_gtk_rekey_data *data) 3458 { 3459 struct ieee80211_local *local = wiphy_priv(wiphy); 3460 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3461 3462 if (!local->ops->set_rekey_data) 3463 return -EOPNOTSUPP; 3464 3465 drv_set_rekey_data(local, sdata, data); 3466 3467 return 0; 3468 } 3469 3470 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3471 const u8 *peer, u64 *cookie) 3472 { 3473 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3474 struct ieee80211_local *local = sdata->local; 3475 struct ieee80211_qos_hdr *nullfunc; 3476 struct sk_buff *skb; 3477 int size = sizeof(*nullfunc); 3478 __le16 fc; 3479 bool qos; 3480 struct ieee80211_tx_info *info; 3481 struct sta_info *sta; 3482 struct ieee80211_chanctx_conf *chanctx_conf; 3483 enum nl80211_band band; 3484 int ret; 3485 3486 /* the lock is needed to assign the cookie later */ 3487 mutex_lock(&local->mtx); 3488 3489 rcu_read_lock(); 3490 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3491 if (WARN_ON(!chanctx_conf)) { 3492 ret = -EINVAL; 3493 goto unlock; 3494 } 3495 band = chanctx_conf->def.chan->band; 3496 sta = sta_info_get_bss(sdata, peer); 3497 if (sta) { 3498 qos = sta->sta.wme; 3499 } else { 3500 ret = -ENOLINK; 3501 goto unlock; 3502 } 3503 3504 if (qos) { 3505 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3506 IEEE80211_STYPE_QOS_NULLFUNC | 3507 IEEE80211_FCTL_FROMDS); 3508 } else { 3509 size -= 2; 3510 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3511 IEEE80211_STYPE_NULLFUNC | 3512 IEEE80211_FCTL_FROMDS); 3513 } 3514 3515 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3516 if (!skb) { 3517 ret = -ENOMEM; 3518 goto unlock; 3519 } 3520 3521 skb->dev = dev; 3522 3523 skb_reserve(skb, local->hw.extra_tx_headroom); 3524 3525 nullfunc = skb_put(skb, size); 3526 nullfunc->frame_control = fc; 3527 nullfunc->duration_id = 0; 3528 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3529 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3530 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3531 nullfunc->seq_ctrl = 0; 3532 3533 info = IEEE80211_SKB_CB(skb); 3534 3535 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3536 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3537 info->band = band; 3538 3539 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3540 skb->priority = 7; 3541 if (qos) 3542 nullfunc->qos_ctrl = cpu_to_le16(7); 3543 3544 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3545 if (ret) { 3546 kfree_skb(skb); 3547 goto unlock; 3548 } 3549 3550 local_bh_disable(); 3551 ieee80211_xmit(sdata, sta, skb, 0); 3552 local_bh_enable(); 3553 3554 ret = 0; 3555 unlock: 3556 rcu_read_unlock(); 3557 mutex_unlock(&local->mtx); 3558 3559 return ret; 3560 } 3561 3562 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3563 struct wireless_dev *wdev, 3564 struct cfg80211_chan_def *chandef) 3565 { 3566 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3567 struct ieee80211_local *local = wiphy_priv(wiphy); 3568 struct ieee80211_chanctx_conf *chanctx_conf; 3569 int ret = -ENODATA; 3570 3571 rcu_read_lock(); 3572 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3573 if (chanctx_conf) { 3574 *chandef = sdata->vif.bss_conf.chandef; 3575 ret = 0; 3576 } else if (local->open_count > 0 && 3577 local->open_count == local->monitors && 3578 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3579 if (local->use_chanctx) 3580 *chandef = local->monitor_chandef; 3581 else 3582 *chandef = local->_oper_chandef; 3583 ret = 0; 3584 } 3585 rcu_read_unlock(); 3586 3587 return ret; 3588 } 3589 3590 #ifdef CONFIG_PM 3591 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3592 { 3593 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3594 } 3595 #endif 3596 3597 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3598 struct net_device *dev, 3599 struct cfg80211_qos_map *qos_map) 3600 { 3601 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3602 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3603 3604 if (qos_map) { 3605 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3606 if (!new_qos_map) 3607 return -ENOMEM; 3608 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3609 } else { 3610 /* A NULL qos_map was passed to disable QoS mapping */ 3611 new_qos_map = NULL; 3612 } 3613 3614 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3615 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3616 if (old_qos_map) 3617 kfree_rcu(old_qos_map, rcu_head); 3618 3619 return 0; 3620 } 3621 3622 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3623 struct net_device *dev, 3624 struct cfg80211_chan_def *chandef) 3625 { 3626 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3627 int ret; 3628 u32 changed = 0; 3629 3630 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3631 if (ret == 0) 3632 ieee80211_bss_info_change_notify(sdata, changed); 3633 3634 return ret; 3635 } 3636 3637 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3638 u8 tsid, const u8 *peer, u8 up, 3639 u16 admitted_time) 3640 { 3641 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3642 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3643 int ac = ieee802_1d_to_ac[up]; 3644 3645 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3646 return -EOPNOTSUPP; 3647 3648 if (!(sdata->wmm_acm & BIT(up))) 3649 return -EINVAL; 3650 3651 if (ifmgd->tx_tspec[ac].admitted_time) 3652 return -EBUSY; 3653 3654 if (admitted_time) { 3655 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3656 ifmgd->tx_tspec[ac].tsid = tsid; 3657 ifmgd->tx_tspec[ac].up = up; 3658 } 3659 3660 return 0; 3661 } 3662 3663 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3664 u8 tsid, const u8 *peer) 3665 { 3666 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3667 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3668 struct ieee80211_local *local = wiphy_priv(wiphy); 3669 int ac; 3670 3671 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3672 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3673 3674 /* skip unused entries */ 3675 if (!tx_tspec->admitted_time) 3676 continue; 3677 3678 if (tx_tspec->tsid != tsid) 3679 continue; 3680 3681 /* due to this new packets will be reassigned to non-ACM ACs */ 3682 tx_tspec->up = -1; 3683 3684 /* Make sure that all packets have been sent to avoid to 3685 * restore the QoS params on packets that are still on the 3686 * queues. 3687 */ 3688 synchronize_net(); 3689 ieee80211_flush_queues(local, sdata, false); 3690 3691 /* restore the normal QoS parameters 3692 * (unconditionally to avoid races) 3693 */ 3694 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3695 tx_tspec->downgraded = false; 3696 ieee80211_sta_handle_tspec_ac_params(sdata); 3697 3698 /* finally clear all the data */ 3699 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3700 3701 return 0; 3702 } 3703 3704 return -ENOENT; 3705 } 3706 3707 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3708 u8 inst_id, 3709 enum nl80211_nan_func_term_reason reason, 3710 gfp_t gfp) 3711 { 3712 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3713 struct cfg80211_nan_func *func; 3714 u64 cookie; 3715 3716 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3717 return; 3718 3719 spin_lock_bh(&sdata->u.nan.func_lock); 3720 3721 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3722 if (WARN_ON(!func)) { 3723 spin_unlock_bh(&sdata->u.nan.func_lock); 3724 return; 3725 } 3726 3727 cookie = func->cookie; 3728 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3729 3730 spin_unlock_bh(&sdata->u.nan.func_lock); 3731 3732 cfg80211_free_nan_func(func); 3733 3734 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3735 reason, cookie, gfp); 3736 } 3737 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3738 3739 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3740 struct cfg80211_nan_match_params *match, 3741 gfp_t gfp) 3742 { 3743 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3744 struct cfg80211_nan_func *func; 3745 3746 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3747 return; 3748 3749 spin_lock_bh(&sdata->u.nan.func_lock); 3750 3751 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3752 if (WARN_ON(!func)) { 3753 spin_unlock_bh(&sdata->u.nan.func_lock); 3754 return; 3755 } 3756 match->cookie = func->cookie; 3757 3758 spin_unlock_bh(&sdata->u.nan.func_lock); 3759 3760 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3761 } 3762 EXPORT_SYMBOL(ieee80211_nan_func_match); 3763 3764 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3765 struct net_device *dev, 3766 const bool enabled) 3767 { 3768 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3769 3770 sdata->u.ap.multicast_to_unicast = enabled; 3771 3772 return 0; 3773 } 3774 3775 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 3776 struct txq_info *txqi) 3777 { 3778 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 3779 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 3780 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 3781 } 3782 3783 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 3784 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 3785 txqstats->backlog_packets = txqi->tin.backlog_packets; 3786 } 3787 3788 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 3789 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 3790 txqstats->flows = txqi->tin.flows; 3791 } 3792 3793 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 3794 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 3795 txqstats->drops = txqi->cstats.drop_count; 3796 } 3797 3798 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 3799 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 3800 txqstats->ecn_marks = txqi->cstats.ecn_mark; 3801 } 3802 3803 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 3804 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 3805 txqstats->overlimit = txqi->tin.overlimit; 3806 } 3807 3808 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 3809 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 3810 txqstats->collisions = txqi->tin.collisions; 3811 } 3812 3813 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 3814 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 3815 txqstats->tx_bytes = txqi->tin.tx_bytes; 3816 } 3817 3818 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 3819 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 3820 txqstats->tx_packets = txqi->tin.tx_packets; 3821 } 3822 } 3823 3824 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 3825 struct wireless_dev *wdev, 3826 struct cfg80211_txq_stats *txqstats) 3827 { 3828 struct ieee80211_local *local = wiphy_priv(wiphy); 3829 struct ieee80211_sub_if_data *sdata; 3830 int ret = 0; 3831 3832 if (!local->ops->wake_tx_queue) 3833 return 1; 3834 3835 spin_lock_bh(&local->fq.lock); 3836 rcu_read_lock(); 3837 3838 if (wdev) { 3839 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3840 if (!sdata->vif.txq) { 3841 ret = 1; 3842 goto out; 3843 } 3844 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 3845 } else { 3846 /* phy stats */ 3847 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 3848 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 3849 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 3850 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 3851 BIT(NL80211_TXQ_STATS_COLLISIONS) | 3852 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 3853 txqstats->backlog_packets = local->fq.backlog; 3854 txqstats->backlog_bytes = local->fq.memory_usage; 3855 txqstats->overlimit = local->fq.overlimit; 3856 txqstats->overmemory = local->fq.overmemory; 3857 txqstats->collisions = local->fq.collisions; 3858 txqstats->max_flows = local->fq.flows_cnt; 3859 } 3860 3861 out: 3862 rcu_read_unlock(); 3863 spin_unlock_bh(&local->fq.lock); 3864 3865 return ret; 3866 } 3867 3868 static int 3869 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 3870 struct net_device *dev, 3871 struct cfg80211_ftm_responder_stats *ftm_stats) 3872 { 3873 struct ieee80211_local *local = wiphy_priv(wiphy); 3874 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3875 3876 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 3877 } 3878 3879 static int 3880 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3881 struct cfg80211_pmsr_request *request) 3882 { 3883 struct ieee80211_local *local = wiphy_priv(wiphy); 3884 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3885 3886 return drv_start_pmsr(local, sdata, request); 3887 } 3888 3889 static void 3890 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3891 struct cfg80211_pmsr_request *request) 3892 { 3893 struct ieee80211_local *local = wiphy_priv(wiphy); 3894 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3895 3896 return drv_abort_pmsr(local, sdata, request); 3897 } 3898 3899 static int ieee80211_set_tid_config(struct wiphy *wiphy, 3900 struct net_device *dev, 3901 struct cfg80211_tid_config *tid_conf) 3902 { 3903 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3904 struct sta_info *sta; 3905 int ret; 3906 3907 if (!sdata->local->ops->set_tid_config) 3908 return -EOPNOTSUPP; 3909 3910 if (!tid_conf->peer) 3911 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf); 3912 3913 mutex_lock(&sdata->local->sta_mtx); 3914 sta = sta_info_get_bss(sdata, tid_conf->peer); 3915 if (!sta) { 3916 mutex_unlock(&sdata->local->sta_mtx); 3917 return -ENOENT; 3918 } 3919 3920 ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf); 3921 mutex_unlock(&sdata->local->sta_mtx); 3922 3923 return ret; 3924 } 3925 3926 static int ieee80211_reset_tid_config(struct wiphy *wiphy, 3927 struct net_device *dev, 3928 const u8 *peer, u8 tid) 3929 { 3930 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3931 struct sta_info *sta; 3932 int ret; 3933 3934 if (!sdata->local->ops->reset_tid_config) 3935 return -EOPNOTSUPP; 3936 3937 if (!peer) 3938 return drv_reset_tid_config(sdata->local, sdata, NULL, tid); 3939 3940 mutex_lock(&sdata->local->sta_mtx); 3941 sta = sta_info_get_bss(sdata, peer); 3942 if (!sta) { 3943 mutex_unlock(&sdata->local->sta_mtx); 3944 return -ENOENT; 3945 } 3946 3947 ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tid); 3948 mutex_unlock(&sdata->local->sta_mtx); 3949 3950 return ret; 3951 } 3952 3953 const struct cfg80211_ops mac80211_config_ops = { 3954 .add_virtual_intf = ieee80211_add_iface, 3955 .del_virtual_intf = ieee80211_del_iface, 3956 .change_virtual_intf = ieee80211_change_iface, 3957 .start_p2p_device = ieee80211_start_p2p_device, 3958 .stop_p2p_device = ieee80211_stop_p2p_device, 3959 .add_key = ieee80211_add_key, 3960 .del_key = ieee80211_del_key, 3961 .get_key = ieee80211_get_key, 3962 .set_default_key = ieee80211_config_default_key, 3963 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3964 .set_default_beacon_key = ieee80211_config_default_beacon_key, 3965 .start_ap = ieee80211_start_ap, 3966 .change_beacon = ieee80211_change_beacon, 3967 .stop_ap = ieee80211_stop_ap, 3968 .add_station = ieee80211_add_station, 3969 .del_station = ieee80211_del_station, 3970 .change_station = ieee80211_change_station, 3971 .get_station = ieee80211_get_station, 3972 .dump_station = ieee80211_dump_station, 3973 .dump_survey = ieee80211_dump_survey, 3974 #ifdef CONFIG_MAC80211_MESH 3975 .add_mpath = ieee80211_add_mpath, 3976 .del_mpath = ieee80211_del_mpath, 3977 .change_mpath = ieee80211_change_mpath, 3978 .get_mpath = ieee80211_get_mpath, 3979 .dump_mpath = ieee80211_dump_mpath, 3980 .get_mpp = ieee80211_get_mpp, 3981 .dump_mpp = ieee80211_dump_mpp, 3982 .update_mesh_config = ieee80211_update_mesh_config, 3983 .get_mesh_config = ieee80211_get_mesh_config, 3984 .join_mesh = ieee80211_join_mesh, 3985 .leave_mesh = ieee80211_leave_mesh, 3986 #endif 3987 .join_ocb = ieee80211_join_ocb, 3988 .leave_ocb = ieee80211_leave_ocb, 3989 .change_bss = ieee80211_change_bss, 3990 .set_txq_params = ieee80211_set_txq_params, 3991 .set_monitor_channel = ieee80211_set_monitor_channel, 3992 .suspend = ieee80211_suspend, 3993 .resume = ieee80211_resume, 3994 .scan = ieee80211_scan, 3995 .abort_scan = ieee80211_abort_scan, 3996 .sched_scan_start = ieee80211_sched_scan_start, 3997 .sched_scan_stop = ieee80211_sched_scan_stop, 3998 .auth = ieee80211_auth, 3999 .assoc = ieee80211_assoc, 4000 .deauth = ieee80211_deauth, 4001 .disassoc = ieee80211_disassoc, 4002 .join_ibss = ieee80211_join_ibss, 4003 .leave_ibss = ieee80211_leave_ibss, 4004 .set_mcast_rate = ieee80211_set_mcast_rate, 4005 .set_wiphy_params = ieee80211_set_wiphy_params, 4006 .set_tx_power = ieee80211_set_tx_power, 4007 .get_tx_power = ieee80211_get_tx_power, 4008 .set_wds_peer = ieee80211_set_wds_peer, 4009 .rfkill_poll = ieee80211_rfkill_poll, 4010 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 4011 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 4012 .set_power_mgmt = ieee80211_set_power_mgmt, 4013 .set_bitrate_mask = ieee80211_set_bitrate_mask, 4014 .remain_on_channel = ieee80211_remain_on_channel, 4015 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 4016 .mgmt_tx = ieee80211_mgmt_tx, 4017 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 4018 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 4019 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 4020 .mgmt_frame_register = ieee80211_mgmt_frame_register, 4021 .set_antenna = ieee80211_set_antenna, 4022 .get_antenna = ieee80211_get_antenna, 4023 .set_rekey_data = ieee80211_set_rekey_data, 4024 .tdls_oper = ieee80211_tdls_oper, 4025 .tdls_mgmt = ieee80211_tdls_mgmt, 4026 .tdls_channel_switch = ieee80211_tdls_channel_switch, 4027 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 4028 .probe_client = ieee80211_probe_client, 4029 .set_noack_map = ieee80211_set_noack_map, 4030 #ifdef CONFIG_PM 4031 .set_wakeup = ieee80211_set_wakeup, 4032 #endif 4033 .get_channel = ieee80211_cfg_get_channel, 4034 .start_radar_detection = ieee80211_start_radar_detection, 4035 .end_cac = ieee80211_end_cac, 4036 .channel_switch = ieee80211_channel_switch, 4037 .set_qos_map = ieee80211_set_qos_map, 4038 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 4039 .add_tx_ts = ieee80211_add_tx_ts, 4040 .del_tx_ts = ieee80211_del_tx_ts, 4041 .start_nan = ieee80211_start_nan, 4042 .stop_nan = ieee80211_stop_nan, 4043 .nan_change_conf = ieee80211_nan_change_conf, 4044 .add_nan_func = ieee80211_add_nan_func, 4045 .del_nan_func = ieee80211_del_nan_func, 4046 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 4047 .tx_control_port = ieee80211_tx_control_port, 4048 .get_txq_stats = ieee80211_get_txq_stats, 4049 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 4050 .start_pmsr = ieee80211_start_pmsr, 4051 .abort_pmsr = ieee80211_abort_pmsr, 4052 .probe_mesh_link = ieee80211_probe_mesh_link, 4053 .set_tid_config = ieee80211_set_tid_config, 4054 .reset_tid_config = ieee80211_reset_tid_config, 4055 }; 4056