1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * mac80211 configuration hooks for cfg80211 4 * 5 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 6 * Copyright 2013-2015 Intel Mobile Communications GmbH 7 * Copyright (C) 2015-2017 Intel Deutschland GmbH 8 * Copyright (C) 2018-2019 Intel Corporation 9 * Copyright (C) 2018 Intel Corporation 10 */ 11 12 #include <linux/ieee80211.h> 13 #include <linux/nl80211.h> 14 #include <linux/rtnetlink.h> 15 #include <linux/slab.h> 16 #include <net/net_namespace.h> 17 #include <linux/rcupdate.h> 18 #include <linux/fips.h> 19 #include <linux/if_ether.h> 20 #include <net/cfg80211.h> 21 #include "ieee80211_i.h" 22 #include "driver-ops.h" 23 #include "rate.h" 24 #include "mesh.h" 25 #include "wme.h" 26 27 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 28 struct vif_params *params) 29 { 30 bool mu_mimo_groups = false; 31 bool mu_mimo_follow = false; 32 33 if (params->vht_mumimo_groups) { 34 u64 membership; 35 36 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 37 38 memcpy(sdata->vif.bss_conf.mu_group.membership, 39 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 40 memcpy(sdata->vif.bss_conf.mu_group.position, 41 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 42 WLAN_USER_POSITION_LEN); 43 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS); 44 /* don't care about endianness - just check for 0 */ 45 memcpy(&membership, params->vht_mumimo_groups, 46 WLAN_MEMBERSHIP_LEN); 47 mu_mimo_groups = membership != 0; 48 } 49 50 if (params->vht_mumimo_follow_addr) { 51 mu_mimo_follow = 52 is_valid_ether_addr(params->vht_mumimo_follow_addr); 53 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 54 params->vht_mumimo_follow_addr); 55 } 56 57 sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 58 } 59 60 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 61 struct vif_params *params) 62 { 63 struct ieee80211_local *local = sdata->local; 64 struct ieee80211_sub_if_data *monitor_sdata; 65 66 /* check flags first */ 67 if (params->flags && ieee80211_sdata_running(sdata)) { 68 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 69 70 /* 71 * Prohibit MONITOR_FLAG_COOK_FRAMES and 72 * MONITOR_FLAG_ACTIVE to be changed while the 73 * interface is up. 74 * Else we would need to add a lot of cruft 75 * to update everything: 76 * cooked_mntrs, monitor and all fif_* counters 77 * reconfigure hardware 78 */ 79 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 80 return -EBUSY; 81 } 82 83 /* also validate MU-MIMO change */ 84 monitor_sdata = rtnl_dereference(local->monitor_sdata); 85 86 if (!monitor_sdata && 87 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 88 return -EOPNOTSUPP; 89 90 /* apply all changes now - no failures allowed */ 91 92 if (monitor_sdata) 93 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 94 95 if (params->flags) { 96 if (ieee80211_sdata_running(sdata)) { 97 ieee80211_adjust_monitor_flags(sdata, -1); 98 sdata->u.mntr.flags = params->flags; 99 ieee80211_adjust_monitor_flags(sdata, 1); 100 101 ieee80211_configure_filter(local); 102 } else { 103 /* 104 * Because the interface is down, ieee80211_do_stop 105 * and ieee80211_do_open take care of "everything" 106 * mentioned in the comment above. 107 */ 108 sdata->u.mntr.flags = params->flags; 109 } 110 } 111 112 return 0; 113 } 114 115 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 116 const char *name, 117 unsigned char name_assign_type, 118 enum nl80211_iftype type, 119 struct vif_params *params) 120 { 121 struct ieee80211_local *local = wiphy_priv(wiphy); 122 struct wireless_dev *wdev; 123 struct ieee80211_sub_if_data *sdata; 124 int err; 125 126 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 127 if (err) 128 return ERR_PTR(err); 129 130 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 131 132 if (type == NL80211_IFTYPE_MONITOR) { 133 err = ieee80211_set_mon_options(sdata, params); 134 if (err) { 135 ieee80211_if_remove(sdata); 136 return NULL; 137 } 138 } 139 140 return wdev; 141 } 142 143 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 144 { 145 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 146 147 return 0; 148 } 149 150 static int ieee80211_change_iface(struct wiphy *wiphy, 151 struct net_device *dev, 152 enum nl80211_iftype type, 153 struct vif_params *params) 154 { 155 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 156 int ret; 157 158 ret = ieee80211_if_change_type(sdata, type); 159 if (ret) 160 return ret; 161 162 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 163 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 164 ieee80211_check_fast_rx_iface(sdata); 165 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 166 sdata->u.mgd.use_4addr = params->use_4addr; 167 } 168 169 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 170 ret = ieee80211_set_mon_options(sdata, params); 171 if (ret) 172 return ret; 173 } 174 175 return 0; 176 } 177 178 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 179 struct wireless_dev *wdev) 180 { 181 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 182 int ret; 183 184 mutex_lock(&sdata->local->chanctx_mtx); 185 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 186 mutex_unlock(&sdata->local->chanctx_mtx); 187 if (ret < 0) 188 return ret; 189 190 return ieee80211_do_open(wdev, true); 191 } 192 193 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 194 struct wireless_dev *wdev) 195 { 196 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 197 } 198 199 static int ieee80211_start_nan(struct wiphy *wiphy, 200 struct wireless_dev *wdev, 201 struct cfg80211_nan_conf *conf) 202 { 203 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 204 int ret; 205 206 mutex_lock(&sdata->local->chanctx_mtx); 207 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 208 mutex_unlock(&sdata->local->chanctx_mtx); 209 if (ret < 0) 210 return ret; 211 212 ret = ieee80211_do_open(wdev, true); 213 if (ret) 214 return ret; 215 216 ret = drv_start_nan(sdata->local, sdata, conf); 217 if (ret) 218 ieee80211_sdata_stop(sdata); 219 220 sdata->u.nan.conf = *conf; 221 222 return ret; 223 } 224 225 static void ieee80211_stop_nan(struct wiphy *wiphy, 226 struct wireless_dev *wdev) 227 { 228 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 229 230 drv_stop_nan(sdata->local, sdata); 231 ieee80211_sdata_stop(sdata); 232 } 233 234 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 235 struct wireless_dev *wdev, 236 struct cfg80211_nan_conf *conf, 237 u32 changes) 238 { 239 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 240 struct cfg80211_nan_conf new_conf; 241 int ret = 0; 242 243 if (sdata->vif.type != NL80211_IFTYPE_NAN) 244 return -EOPNOTSUPP; 245 246 if (!ieee80211_sdata_running(sdata)) 247 return -ENETDOWN; 248 249 new_conf = sdata->u.nan.conf; 250 251 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 252 new_conf.master_pref = conf->master_pref; 253 254 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 255 new_conf.bands = conf->bands; 256 257 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 258 if (!ret) 259 sdata->u.nan.conf = new_conf; 260 261 return ret; 262 } 263 264 static int ieee80211_add_nan_func(struct wiphy *wiphy, 265 struct wireless_dev *wdev, 266 struct cfg80211_nan_func *nan_func) 267 { 268 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 269 int ret; 270 271 if (sdata->vif.type != NL80211_IFTYPE_NAN) 272 return -EOPNOTSUPP; 273 274 if (!ieee80211_sdata_running(sdata)) 275 return -ENETDOWN; 276 277 spin_lock_bh(&sdata->u.nan.func_lock); 278 279 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 280 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 281 GFP_ATOMIC); 282 spin_unlock_bh(&sdata->u.nan.func_lock); 283 284 if (ret < 0) 285 return ret; 286 287 nan_func->instance_id = ret; 288 289 WARN_ON(nan_func->instance_id == 0); 290 291 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 292 if (ret) { 293 spin_lock_bh(&sdata->u.nan.func_lock); 294 idr_remove(&sdata->u.nan.function_inst_ids, 295 nan_func->instance_id); 296 spin_unlock_bh(&sdata->u.nan.func_lock); 297 } 298 299 return ret; 300 } 301 302 static struct cfg80211_nan_func * 303 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 304 u64 cookie) 305 { 306 struct cfg80211_nan_func *func; 307 int id; 308 309 lockdep_assert_held(&sdata->u.nan.func_lock); 310 311 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 312 if (func->cookie == cookie) 313 return func; 314 } 315 316 return NULL; 317 } 318 319 static void ieee80211_del_nan_func(struct wiphy *wiphy, 320 struct wireless_dev *wdev, u64 cookie) 321 { 322 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 323 struct cfg80211_nan_func *func; 324 u8 instance_id = 0; 325 326 if (sdata->vif.type != NL80211_IFTYPE_NAN || 327 !ieee80211_sdata_running(sdata)) 328 return; 329 330 spin_lock_bh(&sdata->u.nan.func_lock); 331 332 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 333 if (func) 334 instance_id = func->instance_id; 335 336 spin_unlock_bh(&sdata->u.nan.func_lock); 337 338 if (instance_id) 339 drv_del_nan_func(sdata->local, sdata, instance_id); 340 } 341 342 static int ieee80211_set_noack_map(struct wiphy *wiphy, 343 struct net_device *dev, 344 u16 noack_map) 345 { 346 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 347 348 sdata->noack_map = noack_map; 349 350 ieee80211_check_fast_xmit_iface(sdata); 351 352 return 0; 353 } 354 355 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 356 const u8 *mac_addr, u8 key_idx) 357 { 358 struct ieee80211_local *local = sdata->local; 359 struct ieee80211_key *key; 360 struct sta_info *sta; 361 int ret = -EINVAL; 362 363 if (!wiphy_ext_feature_isset(local->hw.wiphy, 364 NL80211_EXT_FEATURE_EXT_KEY_ID)) 365 return -EINVAL; 366 367 sta = sta_info_get_bss(sdata, mac_addr); 368 369 if (!sta) 370 return -EINVAL; 371 372 if (sta->ptk_idx == key_idx) 373 return 0; 374 375 mutex_lock(&local->key_mtx); 376 key = key_mtx_dereference(local, sta->ptk[key_idx]); 377 378 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 379 ret = ieee80211_set_tx_key(key); 380 381 mutex_unlock(&local->key_mtx); 382 return ret; 383 } 384 385 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 386 u8 key_idx, bool pairwise, const u8 *mac_addr, 387 struct key_params *params) 388 { 389 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 390 struct ieee80211_local *local = sdata->local; 391 struct sta_info *sta = NULL; 392 const struct ieee80211_cipher_scheme *cs = NULL; 393 struct ieee80211_key *key; 394 int err; 395 396 if (!ieee80211_sdata_running(sdata)) 397 return -ENETDOWN; 398 399 if (pairwise && params->mode == NL80211_KEY_SET_TX) 400 return ieee80211_set_tx(sdata, mac_addr, key_idx); 401 402 /* reject WEP and TKIP keys if WEP failed to initialize */ 403 switch (params->cipher) { 404 case WLAN_CIPHER_SUITE_WEP40: 405 case WLAN_CIPHER_SUITE_TKIP: 406 case WLAN_CIPHER_SUITE_WEP104: 407 if (WARN_ON_ONCE(fips_enabled)) 408 return -EINVAL; 409 case WLAN_CIPHER_SUITE_CCMP: 410 case WLAN_CIPHER_SUITE_CCMP_256: 411 case WLAN_CIPHER_SUITE_AES_CMAC: 412 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 413 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 414 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 415 case WLAN_CIPHER_SUITE_GCMP: 416 case WLAN_CIPHER_SUITE_GCMP_256: 417 break; 418 default: 419 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); 420 break; 421 } 422 423 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 424 params->key, params->seq_len, params->seq, 425 cs); 426 if (IS_ERR(key)) 427 return PTR_ERR(key); 428 429 if (pairwise) 430 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 431 432 if (params->mode == NL80211_KEY_NO_TX) 433 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 434 435 mutex_lock(&local->sta_mtx); 436 437 if (mac_addr) { 438 sta = sta_info_get_bss(sdata, mac_addr); 439 /* 440 * The ASSOC test makes sure the driver is ready to 441 * receive the key. When wpa_supplicant has roamed 442 * using FT, it attempts to set the key before 443 * association has completed, this rejects that attempt 444 * so it will set the key again after association. 445 * 446 * TODO: accept the key if we have a station entry and 447 * add it to the device after the station. 448 */ 449 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 450 ieee80211_key_free_unused(key); 451 err = -ENOENT; 452 goto out_unlock; 453 } 454 } 455 456 switch (sdata->vif.type) { 457 case NL80211_IFTYPE_STATION: 458 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 459 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 460 break; 461 case NL80211_IFTYPE_AP: 462 case NL80211_IFTYPE_AP_VLAN: 463 /* Keys without a station are used for TX only */ 464 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 465 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 466 break; 467 case NL80211_IFTYPE_ADHOC: 468 /* no MFP (yet) */ 469 break; 470 case NL80211_IFTYPE_MESH_POINT: 471 #ifdef CONFIG_MAC80211_MESH 472 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 473 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 474 break; 475 #endif 476 case NL80211_IFTYPE_WDS: 477 case NL80211_IFTYPE_MONITOR: 478 case NL80211_IFTYPE_P2P_DEVICE: 479 case NL80211_IFTYPE_NAN: 480 case NL80211_IFTYPE_UNSPECIFIED: 481 case NUM_NL80211_IFTYPES: 482 case NL80211_IFTYPE_P2P_CLIENT: 483 case NL80211_IFTYPE_P2P_GO: 484 case NL80211_IFTYPE_OCB: 485 /* shouldn't happen */ 486 WARN_ON_ONCE(1); 487 break; 488 } 489 490 if (sta) 491 sta->cipher_scheme = cs; 492 493 err = ieee80211_key_link(key, sdata, sta); 494 495 out_unlock: 496 mutex_unlock(&local->sta_mtx); 497 498 return err; 499 } 500 501 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 502 u8 key_idx, bool pairwise, const u8 *mac_addr) 503 { 504 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 505 struct ieee80211_local *local = sdata->local; 506 struct sta_info *sta; 507 struct ieee80211_key *key = NULL; 508 int ret; 509 510 mutex_lock(&local->sta_mtx); 511 mutex_lock(&local->key_mtx); 512 513 if (mac_addr) { 514 ret = -ENOENT; 515 516 sta = sta_info_get_bss(sdata, mac_addr); 517 if (!sta) 518 goto out_unlock; 519 520 if (pairwise) 521 key = key_mtx_dereference(local, sta->ptk[key_idx]); 522 else 523 key = key_mtx_dereference(local, sta->gtk[key_idx]); 524 } else 525 key = key_mtx_dereference(local, sdata->keys[key_idx]); 526 527 if (!key) { 528 ret = -ENOENT; 529 goto out_unlock; 530 } 531 532 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 533 534 ret = 0; 535 out_unlock: 536 mutex_unlock(&local->key_mtx); 537 mutex_unlock(&local->sta_mtx); 538 539 return ret; 540 } 541 542 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 543 u8 key_idx, bool pairwise, const u8 *mac_addr, 544 void *cookie, 545 void (*callback)(void *cookie, 546 struct key_params *params)) 547 { 548 struct ieee80211_sub_if_data *sdata; 549 struct sta_info *sta = NULL; 550 u8 seq[6] = {0}; 551 struct key_params params; 552 struct ieee80211_key *key = NULL; 553 u64 pn64; 554 u32 iv32; 555 u16 iv16; 556 int err = -ENOENT; 557 struct ieee80211_key_seq kseq = {}; 558 559 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 560 561 rcu_read_lock(); 562 563 if (mac_addr) { 564 sta = sta_info_get_bss(sdata, mac_addr); 565 if (!sta) 566 goto out; 567 568 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 569 key = rcu_dereference(sta->ptk[key_idx]); 570 else if (!pairwise && 571 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) 572 key = rcu_dereference(sta->gtk[key_idx]); 573 } else 574 key = rcu_dereference(sdata->keys[key_idx]); 575 576 if (!key) 577 goto out; 578 579 memset(¶ms, 0, sizeof(params)); 580 581 params.cipher = key->conf.cipher; 582 583 switch (key->conf.cipher) { 584 case WLAN_CIPHER_SUITE_TKIP: 585 pn64 = atomic64_read(&key->conf.tx_pn); 586 iv32 = TKIP_PN_TO_IV32(pn64); 587 iv16 = TKIP_PN_TO_IV16(pn64); 588 589 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 590 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 591 drv_get_key_seq(sdata->local, key, &kseq); 592 iv32 = kseq.tkip.iv32; 593 iv16 = kseq.tkip.iv16; 594 } 595 596 seq[0] = iv16 & 0xff; 597 seq[1] = (iv16 >> 8) & 0xff; 598 seq[2] = iv32 & 0xff; 599 seq[3] = (iv32 >> 8) & 0xff; 600 seq[4] = (iv32 >> 16) & 0xff; 601 seq[5] = (iv32 >> 24) & 0xff; 602 params.seq = seq; 603 params.seq_len = 6; 604 break; 605 case WLAN_CIPHER_SUITE_CCMP: 606 case WLAN_CIPHER_SUITE_CCMP_256: 607 case WLAN_CIPHER_SUITE_AES_CMAC: 608 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 609 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 610 offsetof(typeof(kseq), aes_cmac)); 611 /* fall through */ 612 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 613 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 614 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 615 offsetof(typeof(kseq), aes_gmac)); 616 /* fall through */ 617 case WLAN_CIPHER_SUITE_GCMP: 618 case WLAN_CIPHER_SUITE_GCMP_256: 619 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 620 offsetof(typeof(kseq), gcmp)); 621 622 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 623 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 624 drv_get_key_seq(sdata->local, key, &kseq); 625 memcpy(seq, kseq.ccmp.pn, 6); 626 } else { 627 pn64 = atomic64_read(&key->conf.tx_pn); 628 seq[0] = pn64; 629 seq[1] = pn64 >> 8; 630 seq[2] = pn64 >> 16; 631 seq[3] = pn64 >> 24; 632 seq[4] = pn64 >> 32; 633 seq[5] = pn64 >> 40; 634 } 635 params.seq = seq; 636 params.seq_len = 6; 637 break; 638 default: 639 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 640 break; 641 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 642 break; 643 drv_get_key_seq(sdata->local, key, &kseq); 644 params.seq = kseq.hw.seq; 645 params.seq_len = kseq.hw.seq_len; 646 break; 647 } 648 649 params.key = key->conf.key; 650 params.key_len = key->conf.keylen; 651 652 callback(cookie, ¶ms); 653 err = 0; 654 655 out: 656 rcu_read_unlock(); 657 return err; 658 } 659 660 static int ieee80211_config_default_key(struct wiphy *wiphy, 661 struct net_device *dev, 662 u8 key_idx, bool uni, 663 bool multi) 664 { 665 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 666 667 ieee80211_set_default_key(sdata, key_idx, uni, multi); 668 669 return 0; 670 } 671 672 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 673 struct net_device *dev, 674 u8 key_idx) 675 { 676 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 677 678 ieee80211_set_default_mgmt_key(sdata, key_idx); 679 680 return 0; 681 } 682 683 void sta_set_rate_info_tx(struct sta_info *sta, 684 const struct ieee80211_tx_rate *rate, 685 struct rate_info *rinfo) 686 { 687 rinfo->flags = 0; 688 if (rate->flags & IEEE80211_TX_RC_MCS) { 689 rinfo->flags |= RATE_INFO_FLAGS_MCS; 690 rinfo->mcs = rate->idx; 691 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 692 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 693 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 694 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 695 } else { 696 struct ieee80211_supported_band *sband; 697 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 698 u16 brate; 699 700 sband = ieee80211_get_sband(sta->sdata); 701 if (sband) { 702 brate = sband->bitrates[rate->idx].bitrate; 703 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 704 } 705 } 706 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 707 rinfo->bw = RATE_INFO_BW_40; 708 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 709 rinfo->bw = RATE_INFO_BW_80; 710 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 711 rinfo->bw = RATE_INFO_BW_160; 712 else 713 rinfo->bw = RATE_INFO_BW_20; 714 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 715 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 716 } 717 718 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 719 int idx, u8 *mac, struct station_info *sinfo) 720 { 721 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 722 struct ieee80211_local *local = sdata->local; 723 struct sta_info *sta; 724 int ret = -ENOENT; 725 726 mutex_lock(&local->sta_mtx); 727 728 sta = sta_info_get_by_idx(sdata, idx); 729 if (sta) { 730 ret = 0; 731 memcpy(mac, sta->sta.addr, ETH_ALEN); 732 sta_set_sinfo(sta, sinfo, true); 733 } 734 735 mutex_unlock(&local->sta_mtx); 736 737 return ret; 738 } 739 740 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 741 int idx, struct survey_info *survey) 742 { 743 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 744 745 return drv_get_survey(local, idx, survey); 746 } 747 748 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 749 const u8 *mac, struct station_info *sinfo) 750 { 751 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 752 struct ieee80211_local *local = sdata->local; 753 struct sta_info *sta; 754 int ret = -ENOENT; 755 756 mutex_lock(&local->sta_mtx); 757 758 sta = sta_info_get_bss(sdata, mac); 759 if (sta) { 760 ret = 0; 761 sta_set_sinfo(sta, sinfo, true); 762 } 763 764 mutex_unlock(&local->sta_mtx); 765 766 return ret; 767 } 768 769 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 770 struct cfg80211_chan_def *chandef) 771 { 772 struct ieee80211_local *local = wiphy_priv(wiphy); 773 struct ieee80211_sub_if_data *sdata; 774 int ret = 0; 775 776 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 777 return 0; 778 779 mutex_lock(&local->mtx); 780 if (local->use_chanctx) { 781 sdata = rtnl_dereference(local->monitor_sdata); 782 if (sdata) { 783 ieee80211_vif_release_channel(sdata); 784 ret = ieee80211_vif_use_channel(sdata, chandef, 785 IEEE80211_CHANCTX_EXCLUSIVE); 786 } 787 } else if (local->open_count == local->monitors) { 788 local->_oper_chandef = *chandef; 789 ieee80211_hw_config(local, 0); 790 } 791 792 if (ret == 0) 793 local->monitor_chandef = *chandef; 794 mutex_unlock(&local->mtx); 795 796 return ret; 797 } 798 799 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 800 const u8 *resp, size_t resp_len, 801 const struct ieee80211_csa_settings *csa) 802 { 803 struct probe_resp *new, *old; 804 805 if (!resp || !resp_len) 806 return 1; 807 808 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 809 810 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 811 if (!new) 812 return -ENOMEM; 813 814 new->len = resp_len; 815 memcpy(new->data, resp, resp_len); 816 817 if (csa) 818 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp, 819 csa->n_counter_offsets_presp * 820 sizeof(new->csa_counter_offsets[0])); 821 822 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 823 if (old) 824 kfree_rcu(old, rcu_head); 825 826 return 0; 827 } 828 829 static int ieee80211_set_ftm_responder_params( 830 struct ieee80211_sub_if_data *sdata, 831 const u8 *lci, size_t lci_len, 832 const u8 *civicloc, size_t civicloc_len) 833 { 834 struct ieee80211_ftm_responder_params *new, *old; 835 struct ieee80211_bss_conf *bss_conf; 836 u8 *pos; 837 int len; 838 839 if (!lci_len && !civicloc_len) 840 return 0; 841 842 bss_conf = &sdata->vif.bss_conf; 843 old = bss_conf->ftmr_params; 844 len = lci_len + civicloc_len; 845 846 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 847 if (!new) 848 return -ENOMEM; 849 850 pos = (u8 *)(new + 1); 851 if (lci_len) { 852 new->lci_len = lci_len; 853 new->lci = pos; 854 memcpy(pos, lci, lci_len); 855 pos += lci_len; 856 } 857 858 if (civicloc_len) { 859 new->civicloc_len = civicloc_len; 860 new->civicloc = pos; 861 memcpy(pos, civicloc, civicloc_len); 862 pos += civicloc_len; 863 } 864 865 bss_conf->ftmr_params = new; 866 kfree(old); 867 868 return 0; 869 } 870 871 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 872 struct cfg80211_beacon_data *params, 873 const struct ieee80211_csa_settings *csa) 874 { 875 struct beacon_data *new, *old; 876 int new_head_len, new_tail_len; 877 int size, err; 878 u32 changed = BSS_CHANGED_BEACON; 879 880 old = sdata_dereference(sdata->u.ap.beacon, sdata); 881 882 883 /* Need to have a beacon head if we don't have one yet */ 884 if (!params->head && !old) 885 return -EINVAL; 886 887 /* new or old head? */ 888 if (params->head) 889 new_head_len = params->head_len; 890 else 891 new_head_len = old->head_len; 892 893 /* new or old tail? */ 894 if (params->tail || !old) 895 /* params->tail_len will be zero for !params->tail */ 896 new_tail_len = params->tail_len; 897 else 898 new_tail_len = old->tail_len; 899 900 size = sizeof(*new) + new_head_len + new_tail_len; 901 902 new = kzalloc(size, GFP_KERNEL); 903 if (!new) 904 return -ENOMEM; 905 906 /* start filling the new info now */ 907 908 /* 909 * pointers go into the block we allocated, 910 * memory is | beacon_data | head | tail | 911 */ 912 new->head = ((u8 *) new) + sizeof(*new); 913 new->tail = new->head + new_head_len; 914 new->head_len = new_head_len; 915 new->tail_len = new_tail_len; 916 917 if (csa) { 918 new->csa_current_counter = csa->count; 919 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon, 920 csa->n_counter_offsets_beacon * 921 sizeof(new->csa_counter_offsets[0])); 922 } 923 924 /* copy in head */ 925 if (params->head) 926 memcpy(new->head, params->head, new_head_len); 927 else 928 memcpy(new->head, old->head, new_head_len); 929 930 /* copy in optional tail */ 931 if (params->tail) 932 memcpy(new->tail, params->tail, new_tail_len); 933 else 934 if (old) 935 memcpy(new->tail, old->tail, new_tail_len); 936 937 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 938 params->probe_resp_len, csa); 939 if (err < 0) { 940 kfree(new); 941 return err; 942 } 943 if (err == 0) 944 changed |= BSS_CHANGED_AP_PROBE_RESP; 945 946 if (params->ftm_responder != -1) { 947 sdata->vif.bss_conf.ftm_responder = params->ftm_responder; 948 err = ieee80211_set_ftm_responder_params(sdata, 949 params->lci, 950 params->lci_len, 951 params->civicloc, 952 params->civicloc_len); 953 954 if (err < 0) { 955 kfree(new); 956 return err; 957 } 958 959 changed |= BSS_CHANGED_FTM_RESPONDER; 960 } 961 962 rcu_assign_pointer(sdata->u.ap.beacon, new); 963 964 if (old) 965 kfree_rcu(old, rcu_head); 966 967 return changed; 968 } 969 970 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 971 struct cfg80211_ap_settings *params) 972 { 973 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 974 struct ieee80211_local *local = sdata->local; 975 struct beacon_data *old; 976 struct ieee80211_sub_if_data *vlan; 977 u32 changed = BSS_CHANGED_BEACON_INT | 978 BSS_CHANGED_BEACON_ENABLED | 979 BSS_CHANGED_BEACON | 980 BSS_CHANGED_SSID | 981 BSS_CHANGED_P2P_PS | 982 BSS_CHANGED_TXPOWER | 983 BSS_CHANGED_TWT; 984 int err; 985 int prev_beacon_int; 986 987 old = sdata_dereference(sdata->u.ap.beacon, sdata); 988 if (old) 989 return -EALREADY; 990 991 switch (params->smps_mode) { 992 case NL80211_SMPS_OFF: 993 sdata->smps_mode = IEEE80211_SMPS_OFF; 994 break; 995 case NL80211_SMPS_STATIC: 996 sdata->smps_mode = IEEE80211_SMPS_STATIC; 997 break; 998 case NL80211_SMPS_DYNAMIC: 999 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC; 1000 break; 1001 default: 1002 return -EINVAL; 1003 } 1004 sdata->u.ap.req_smps = sdata->smps_mode; 1005 1006 sdata->needed_rx_chains = sdata->local->rx_chains; 1007 1008 prev_beacon_int = sdata->vif.bss_conf.beacon_int; 1009 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 1010 1011 if (params->he_cap) 1012 sdata->vif.bss_conf.he_support = true; 1013 1014 mutex_lock(&local->mtx); 1015 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 1016 IEEE80211_CHANCTX_SHARED); 1017 if (!err) 1018 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 1019 mutex_unlock(&local->mtx); 1020 if (err) { 1021 sdata->vif.bss_conf.beacon_int = prev_beacon_int; 1022 return err; 1023 } 1024 1025 /* 1026 * Apply control port protocol, this allows us to 1027 * not encrypt dynamic WEP control frames. 1028 */ 1029 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1030 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1031 sdata->control_port_over_nl80211 = 1032 params->crypto.control_port_over_nl80211; 1033 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 1034 ¶ms->crypto, 1035 sdata->vif.type); 1036 1037 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1038 vlan->control_port_protocol = 1039 params->crypto.control_port_ethertype; 1040 vlan->control_port_no_encrypt = 1041 params->crypto.control_port_no_encrypt; 1042 vlan->control_port_over_nl80211 = 1043 params->crypto.control_port_over_nl80211; 1044 vlan->encrypt_headroom = 1045 ieee80211_cs_headroom(sdata->local, 1046 ¶ms->crypto, 1047 vlan->vif.type); 1048 } 1049 1050 sdata->vif.bss_conf.dtim_period = params->dtim_period; 1051 sdata->vif.bss_conf.enable_beacon = true; 1052 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 1053 sdata->vif.bss_conf.twt_responder = params->twt_responder; 1054 1055 sdata->vif.bss_conf.ssid_len = params->ssid_len; 1056 if (params->ssid_len) 1057 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 1058 params->ssid_len); 1059 sdata->vif.bss_conf.hidden_ssid = 1060 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1061 1062 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 1063 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 1064 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 1065 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1066 if (params->p2p_opp_ps) 1067 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1068 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1069 1070 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); 1071 if (err < 0) { 1072 ieee80211_vif_release_channel(sdata); 1073 return err; 1074 } 1075 changed |= err; 1076 1077 err = drv_start_ap(sdata->local, sdata); 1078 if (err) { 1079 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1080 1081 if (old) 1082 kfree_rcu(old, rcu_head); 1083 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1084 ieee80211_vif_release_channel(sdata); 1085 return err; 1086 } 1087 1088 ieee80211_recalc_dtim(local, sdata); 1089 ieee80211_bss_info_change_notify(sdata, changed); 1090 1091 netif_carrier_on(dev); 1092 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1093 netif_carrier_on(vlan->dev); 1094 1095 return 0; 1096 } 1097 1098 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1099 struct cfg80211_beacon_data *params) 1100 { 1101 struct ieee80211_sub_if_data *sdata; 1102 struct beacon_data *old; 1103 int err; 1104 1105 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1106 sdata_assert_lock(sdata); 1107 1108 /* don't allow changing the beacon while CSA is in place - offset 1109 * of channel switch counter may change 1110 */ 1111 if (sdata->vif.csa_active) 1112 return -EBUSY; 1113 1114 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1115 if (!old) 1116 return -ENOENT; 1117 1118 err = ieee80211_assign_beacon(sdata, params, NULL); 1119 if (err < 0) 1120 return err; 1121 ieee80211_bss_info_change_notify(sdata, err); 1122 return 0; 1123 } 1124 1125 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1126 { 1127 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1128 struct ieee80211_sub_if_data *vlan; 1129 struct ieee80211_local *local = sdata->local; 1130 struct beacon_data *old_beacon; 1131 struct probe_resp *old_probe_resp; 1132 struct cfg80211_chan_def chandef; 1133 1134 sdata_assert_lock(sdata); 1135 1136 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1137 if (!old_beacon) 1138 return -ENOENT; 1139 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1140 1141 /* abort any running channel switch */ 1142 mutex_lock(&local->mtx); 1143 sdata->vif.csa_active = false; 1144 if (sdata->csa_block_tx) { 1145 ieee80211_wake_vif_queues(local, sdata, 1146 IEEE80211_QUEUE_STOP_REASON_CSA); 1147 sdata->csa_block_tx = false; 1148 } 1149 1150 mutex_unlock(&local->mtx); 1151 1152 kfree(sdata->u.ap.next_beacon); 1153 sdata->u.ap.next_beacon = NULL; 1154 1155 /* turn off carrier for this interface and dependent VLANs */ 1156 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1157 netif_carrier_off(vlan->dev); 1158 netif_carrier_off(dev); 1159 1160 /* remove beacon and probe response */ 1161 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1162 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1163 kfree_rcu(old_beacon, rcu_head); 1164 if (old_probe_resp) 1165 kfree_rcu(old_probe_resp, rcu_head); 1166 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF; 1167 1168 kfree(sdata->vif.bss_conf.ftmr_params); 1169 sdata->vif.bss_conf.ftmr_params = NULL; 1170 1171 __sta_info_flush(sdata, true); 1172 ieee80211_free_keys(sdata, true); 1173 1174 sdata->vif.bss_conf.enable_beacon = false; 1175 sdata->vif.bss_conf.ssid_len = 0; 1176 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1177 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1178 1179 if (sdata->wdev.cac_started) { 1180 chandef = sdata->vif.bss_conf.chandef; 1181 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1182 cfg80211_cac_event(sdata->dev, &chandef, 1183 NL80211_RADAR_CAC_ABORTED, 1184 GFP_KERNEL); 1185 } 1186 1187 drv_stop_ap(sdata->local, sdata); 1188 1189 /* free all potentially still buffered bcast frames */ 1190 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1191 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1192 1193 mutex_lock(&local->mtx); 1194 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1195 ieee80211_vif_release_channel(sdata); 1196 mutex_unlock(&local->mtx); 1197 1198 return 0; 1199 } 1200 1201 static int sta_apply_auth_flags(struct ieee80211_local *local, 1202 struct sta_info *sta, 1203 u32 mask, u32 set) 1204 { 1205 int ret; 1206 1207 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1208 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1209 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1210 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1211 if (ret) 1212 return ret; 1213 } 1214 1215 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1216 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1217 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1218 /* 1219 * When peer becomes associated, init rate control as 1220 * well. Some drivers require rate control initialized 1221 * before drv_sta_state() is called. 1222 */ 1223 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1224 rate_control_rate_init(sta); 1225 1226 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1227 if (ret) 1228 return ret; 1229 } 1230 1231 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1232 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1233 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1234 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1235 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1236 else 1237 ret = 0; 1238 if (ret) 1239 return ret; 1240 } 1241 1242 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1243 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1244 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1245 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1246 if (ret) 1247 return ret; 1248 } 1249 1250 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1251 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1252 test_sta_flag(sta, WLAN_STA_AUTH)) { 1253 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1254 if (ret) 1255 return ret; 1256 } 1257 1258 return 0; 1259 } 1260 1261 static void sta_apply_mesh_params(struct ieee80211_local *local, 1262 struct sta_info *sta, 1263 struct station_parameters *params) 1264 { 1265 #ifdef CONFIG_MAC80211_MESH 1266 struct ieee80211_sub_if_data *sdata = sta->sdata; 1267 u32 changed = 0; 1268 1269 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1270 switch (params->plink_state) { 1271 case NL80211_PLINK_ESTAB: 1272 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1273 changed = mesh_plink_inc_estab_count(sdata); 1274 sta->mesh->plink_state = params->plink_state; 1275 sta->mesh->aid = params->peer_aid; 1276 1277 ieee80211_mps_sta_status_update(sta); 1278 changed |= ieee80211_mps_set_sta_local_pm(sta, 1279 sdata->u.mesh.mshcfg.power_mode); 1280 1281 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1282 /* init at low value */ 1283 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1284 1285 break; 1286 case NL80211_PLINK_LISTEN: 1287 case NL80211_PLINK_BLOCKED: 1288 case NL80211_PLINK_OPN_SNT: 1289 case NL80211_PLINK_OPN_RCVD: 1290 case NL80211_PLINK_CNF_RCVD: 1291 case NL80211_PLINK_HOLDING: 1292 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1293 changed = mesh_plink_dec_estab_count(sdata); 1294 sta->mesh->plink_state = params->plink_state; 1295 1296 ieee80211_mps_sta_status_update(sta); 1297 changed |= ieee80211_mps_set_sta_local_pm(sta, 1298 NL80211_MESH_POWER_UNKNOWN); 1299 break; 1300 default: 1301 /* nothing */ 1302 break; 1303 } 1304 } 1305 1306 switch (params->plink_action) { 1307 case NL80211_PLINK_ACTION_NO_ACTION: 1308 /* nothing */ 1309 break; 1310 case NL80211_PLINK_ACTION_OPEN: 1311 changed |= mesh_plink_open(sta); 1312 break; 1313 case NL80211_PLINK_ACTION_BLOCK: 1314 changed |= mesh_plink_block(sta); 1315 break; 1316 } 1317 1318 if (params->local_pm) 1319 changed |= ieee80211_mps_set_sta_local_pm(sta, 1320 params->local_pm); 1321 1322 ieee80211_mbss_info_change_notify(sdata, changed); 1323 #endif 1324 } 1325 1326 static int sta_apply_parameters(struct ieee80211_local *local, 1327 struct sta_info *sta, 1328 struct station_parameters *params) 1329 { 1330 int ret = 0; 1331 struct ieee80211_supported_band *sband; 1332 struct ieee80211_sub_if_data *sdata = sta->sdata; 1333 u32 mask, set; 1334 1335 sband = ieee80211_get_sband(sdata); 1336 if (!sband) 1337 return -EINVAL; 1338 1339 mask = params->sta_flags_mask; 1340 set = params->sta_flags_set; 1341 1342 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1343 /* 1344 * In mesh mode, ASSOCIATED isn't part of the nl80211 1345 * API but must follow AUTHENTICATED for driver state. 1346 */ 1347 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1348 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1349 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1350 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1351 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1352 /* 1353 * TDLS -- everything follows authorized, but 1354 * only becoming authorized is possible, not 1355 * going back 1356 */ 1357 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1358 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1359 BIT(NL80211_STA_FLAG_ASSOCIATED); 1360 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1361 BIT(NL80211_STA_FLAG_ASSOCIATED); 1362 } 1363 } 1364 1365 if (mask & BIT(NL80211_STA_FLAG_WME) && 1366 local->hw.queues >= IEEE80211_NUM_ACS) 1367 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1368 1369 /* auth flags will be set later for TDLS, 1370 * and for unassociated stations that move to assocaited */ 1371 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1372 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1373 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1374 ret = sta_apply_auth_flags(local, sta, mask, set); 1375 if (ret) 1376 return ret; 1377 } 1378 1379 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1380 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1381 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1382 else 1383 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1384 } 1385 1386 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1387 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1388 if (set & BIT(NL80211_STA_FLAG_MFP)) 1389 set_sta_flag(sta, WLAN_STA_MFP); 1390 else 1391 clear_sta_flag(sta, WLAN_STA_MFP); 1392 } 1393 1394 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1395 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1396 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1397 else 1398 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1399 } 1400 1401 /* mark TDLS channel switch support, if the AP allows it */ 1402 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1403 !sdata->u.mgd.tdls_chan_switch_prohibited && 1404 params->ext_capab_len >= 4 && 1405 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1406 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1407 1408 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1409 !sdata->u.mgd.tdls_wider_bw_prohibited && 1410 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1411 params->ext_capab_len >= 8 && 1412 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1413 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1414 1415 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1416 sta->sta.uapsd_queues = params->uapsd_queues; 1417 sta->sta.max_sp = params->max_sp; 1418 } 1419 1420 /* The sender might not have sent the last bit, consider it to be 0 */ 1421 if (params->ext_capab_len >= 8) { 1422 u8 val = (params->ext_capab[7] & 1423 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1424 1425 /* we did get all the bits, take the MSB as well */ 1426 if (params->ext_capab_len >= 9) { 1427 u8 val_msb = params->ext_capab[8] & 1428 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1429 val_msb <<= 1; 1430 val |= val_msb; 1431 } 1432 1433 switch (val) { 1434 case 1: 1435 sta->sta.max_amsdu_subframes = 32; 1436 break; 1437 case 2: 1438 sta->sta.max_amsdu_subframes = 16; 1439 break; 1440 case 3: 1441 sta->sta.max_amsdu_subframes = 8; 1442 break; 1443 default: 1444 sta->sta.max_amsdu_subframes = 0; 1445 } 1446 } 1447 1448 /* 1449 * cfg80211 validates this (1-2007) and allows setting the AID 1450 * only when creating a new station entry 1451 */ 1452 if (params->aid) 1453 sta->sta.aid = params->aid; 1454 1455 /* 1456 * Some of the following updates would be racy if called on an 1457 * existing station, via ieee80211_change_station(). However, 1458 * all such changes are rejected by cfg80211 except for updates 1459 * changing the supported rates on an existing but not yet used 1460 * TDLS peer. 1461 */ 1462 1463 if (params->listen_interval >= 0) 1464 sta->listen_interval = params->listen_interval; 1465 1466 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) { 1467 sta->sta.txpwr.type = params->txpwr.type; 1468 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1469 sta->sta.txpwr.power = params->txpwr.power; 1470 ret = drv_sta_set_txpwr(local, sdata, sta); 1471 if (ret) 1472 return ret; 1473 } 1474 1475 if (params->supported_rates && params->supported_rates_len) { 1476 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1477 sband, params->supported_rates, 1478 params->supported_rates_len, 1479 &sta->sta.supp_rates[sband->band]); 1480 } 1481 1482 if (params->ht_capa) 1483 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1484 params->ht_capa, sta); 1485 1486 /* VHT can override some HT caps such as the A-MSDU max length */ 1487 if (params->vht_capa) 1488 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1489 params->vht_capa, sta); 1490 1491 if (params->he_capa) 1492 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1493 (void *)params->he_capa, 1494 params->he_capa_len, sta); 1495 1496 if (params->opmode_notif_used) { 1497 /* returned value is only needed for rc update, but the 1498 * rc isn't initialized here yet, so ignore it 1499 */ 1500 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1501 sband->band); 1502 } 1503 1504 if (params->support_p2p_ps >= 0) 1505 sta->sta.support_p2p_ps = params->support_p2p_ps; 1506 1507 if (ieee80211_vif_is_mesh(&sdata->vif)) 1508 sta_apply_mesh_params(local, sta, params); 1509 1510 if (params->airtime_weight) 1511 sta->airtime_weight = params->airtime_weight; 1512 1513 /* set the STA state after all sta info from usermode has been set */ 1514 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1515 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1516 ret = sta_apply_auth_flags(local, sta, mask, set); 1517 if (ret) 1518 return ret; 1519 } 1520 1521 return 0; 1522 } 1523 1524 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1525 const u8 *mac, 1526 struct station_parameters *params) 1527 { 1528 struct ieee80211_local *local = wiphy_priv(wiphy); 1529 struct sta_info *sta; 1530 struct ieee80211_sub_if_data *sdata; 1531 int err; 1532 int layer2_update; 1533 1534 if (params->vlan) { 1535 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1536 1537 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1538 sdata->vif.type != NL80211_IFTYPE_AP) 1539 return -EINVAL; 1540 } else 1541 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1542 1543 if (ether_addr_equal(mac, sdata->vif.addr)) 1544 return -EINVAL; 1545 1546 if (is_multicast_ether_addr(mac)) 1547 return -EINVAL; 1548 1549 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) && 1550 sdata->vif.type == NL80211_IFTYPE_STATION && 1551 !sdata->u.mgd.associated) 1552 return -EINVAL; 1553 1554 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1555 if (!sta) 1556 return -ENOMEM; 1557 1558 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1559 sta->sta.tdls = true; 1560 1561 err = sta_apply_parameters(local, sta, params); 1562 if (err) { 1563 sta_info_free(local, sta); 1564 return err; 1565 } 1566 1567 /* 1568 * for TDLS and for unassociated station, rate control should be 1569 * initialized only when rates are known and station is marked 1570 * authorized/associated 1571 */ 1572 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1573 test_sta_flag(sta, WLAN_STA_ASSOC)) 1574 rate_control_rate_init(sta); 1575 1576 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 1577 sdata->vif.type == NL80211_IFTYPE_AP; 1578 1579 err = sta_info_insert_rcu(sta); 1580 if (err) { 1581 rcu_read_unlock(); 1582 return err; 1583 } 1584 1585 if (layer2_update) 1586 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1587 1588 rcu_read_unlock(); 1589 1590 return 0; 1591 } 1592 1593 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1594 struct station_del_parameters *params) 1595 { 1596 struct ieee80211_sub_if_data *sdata; 1597 1598 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1599 1600 if (params->mac) 1601 return sta_info_destroy_addr_bss(sdata, params->mac); 1602 1603 sta_info_flush(sdata); 1604 return 0; 1605 } 1606 1607 static int ieee80211_change_station(struct wiphy *wiphy, 1608 struct net_device *dev, const u8 *mac, 1609 struct station_parameters *params) 1610 { 1611 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1612 struct ieee80211_local *local = wiphy_priv(wiphy); 1613 struct sta_info *sta; 1614 struct ieee80211_sub_if_data *vlansdata; 1615 enum cfg80211_station_type statype; 1616 int err; 1617 1618 mutex_lock(&local->sta_mtx); 1619 1620 sta = sta_info_get_bss(sdata, mac); 1621 if (!sta) { 1622 err = -ENOENT; 1623 goto out_err; 1624 } 1625 1626 switch (sdata->vif.type) { 1627 case NL80211_IFTYPE_MESH_POINT: 1628 if (sdata->u.mesh.user_mpm) 1629 statype = CFG80211_STA_MESH_PEER_USER; 1630 else 1631 statype = CFG80211_STA_MESH_PEER_KERNEL; 1632 break; 1633 case NL80211_IFTYPE_ADHOC: 1634 statype = CFG80211_STA_IBSS; 1635 break; 1636 case NL80211_IFTYPE_STATION: 1637 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1638 statype = CFG80211_STA_AP_STA; 1639 break; 1640 } 1641 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1642 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1643 else 1644 statype = CFG80211_STA_TDLS_PEER_SETUP; 1645 break; 1646 case NL80211_IFTYPE_AP: 1647 case NL80211_IFTYPE_AP_VLAN: 1648 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1649 statype = CFG80211_STA_AP_CLIENT; 1650 else 1651 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1652 break; 1653 default: 1654 err = -EOPNOTSUPP; 1655 goto out_err; 1656 } 1657 1658 err = cfg80211_check_station_change(wiphy, params, statype); 1659 if (err) 1660 goto out_err; 1661 1662 if (params->vlan && params->vlan != sta->sdata->dev) { 1663 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1664 1665 if (params->vlan->ieee80211_ptr->use_4addr) { 1666 if (vlansdata->u.vlan.sta) { 1667 err = -EBUSY; 1668 goto out_err; 1669 } 1670 1671 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1672 __ieee80211_check_fast_rx_iface(vlansdata); 1673 } 1674 1675 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1676 sta->sdata->u.vlan.sta) 1677 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1678 1679 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1680 ieee80211_vif_dec_num_mcast(sta->sdata); 1681 1682 sta->sdata = vlansdata; 1683 ieee80211_check_fast_xmit(sta); 1684 1685 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1686 ieee80211_vif_inc_num_mcast(sta->sdata); 1687 1688 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1689 } 1690 1691 err = sta_apply_parameters(local, sta, params); 1692 if (err) 1693 goto out_err; 1694 1695 mutex_unlock(&local->sta_mtx); 1696 1697 if ((sdata->vif.type == NL80211_IFTYPE_AP || 1698 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && 1699 sta->known_smps_mode != sta->sdata->bss->req_smps && 1700 test_sta_flag(sta, WLAN_STA_AUTHORIZED) && 1701 sta_info_tx_streams(sta) != 1) { 1702 ht_dbg(sta->sdata, 1703 "%pM just authorized and MIMO capable - update SMPS\n", 1704 sta->sta.addr); 1705 ieee80211_send_smps_action(sta->sdata, 1706 sta->sdata->bss->req_smps, 1707 sta->sta.addr, 1708 sta->sdata->vif.bss_conf.bssid); 1709 } 1710 1711 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1712 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1713 ieee80211_recalc_ps(local); 1714 ieee80211_recalc_ps_vif(sdata); 1715 } 1716 1717 return 0; 1718 out_err: 1719 mutex_unlock(&local->sta_mtx); 1720 return err; 1721 } 1722 1723 #ifdef CONFIG_MAC80211_MESH 1724 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1725 const u8 *dst, const u8 *next_hop) 1726 { 1727 struct ieee80211_sub_if_data *sdata; 1728 struct mesh_path *mpath; 1729 struct sta_info *sta; 1730 1731 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1732 1733 rcu_read_lock(); 1734 sta = sta_info_get(sdata, next_hop); 1735 if (!sta) { 1736 rcu_read_unlock(); 1737 return -ENOENT; 1738 } 1739 1740 mpath = mesh_path_add(sdata, dst); 1741 if (IS_ERR(mpath)) { 1742 rcu_read_unlock(); 1743 return PTR_ERR(mpath); 1744 } 1745 1746 mesh_path_fix_nexthop(mpath, sta); 1747 1748 rcu_read_unlock(); 1749 return 0; 1750 } 1751 1752 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1753 const u8 *dst) 1754 { 1755 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1756 1757 if (dst) 1758 return mesh_path_del(sdata, dst); 1759 1760 mesh_path_flush_by_iface(sdata); 1761 return 0; 1762 } 1763 1764 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1765 const u8 *dst, const u8 *next_hop) 1766 { 1767 struct ieee80211_sub_if_data *sdata; 1768 struct mesh_path *mpath; 1769 struct sta_info *sta; 1770 1771 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1772 1773 rcu_read_lock(); 1774 1775 sta = sta_info_get(sdata, next_hop); 1776 if (!sta) { 1777 rcu_read_unlock(); 1778 return -ENOENT; 1779 } 1780 1781 mpath = mesh_path_lookup(sdata, dst); 1782 if (!mpath) { 1783 rcu_read_unlock(); 1784 return -ENOENT; 1785 } 1786 1787 mesh_path_fix_nexthop(mpath, sta); 1788 1789 rcu_read_unlock(); 1790 return 0; 1791 } 1792 1793 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1794 struct mpath_info *pinfo) 1795 { 1796 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1797 1798 if (next_hop_sta) 1799 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1800 else 1801 eth_zero_addr(next_hop); 1802 1803 memset(pinfo, 0, sizeof(*pinfo)); 1804 1805 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1806 1807 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1808 MPATH_INFO_SN | 1809 MPATH_INFO_METRIC | 1810 MPATH_INFO_EXPTIME | 1811 MPATH_INFO_DISCOVERY_TIMEOUT | 1812 MPATH_INFO_DISCOVERY_RETRIES | 1813 MPATH_INFO_FLAGS | 1814 MPATH_INFO_HOP_COUNT | 1815 MPATH_INFO_PATH_CHANGE; 1816 1817 pinfo->frame_qlen = mpath->frame_queue.qlen; 1818 pinfo->sn = mpath->sn; 1819 pinfo->metric = mpath->metric; 1820 if (time_before(jiffies, mpath->exp_time)) 1821 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1822 pinfo->discovery_timeout = 1823 jiffies_to_msecs(mpath->discovery_timeout); 1824 pinfo->discovery_retries = mpath->discovery_retries; 1825 if (mpath->flags & MESH_PATH_ACTIVE) 1826 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1827 if (mpath->flags & MESH_PATH_RESOLVING) 1828 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1829 if (mpath->flags & MESH_PATH_SN_VALID) 1830 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1831 if (mpath->flags & MESH_PATH_FIXED) 1832 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1833 if (mpath->flags & MESH_PATH_RESOLVED) 1834 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1835 pinfo->hop_count = mpath->hop_count; 1836 pinfo->path_change_count = mpath->path_change_count; 1837 } 1838 1839 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1840 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1841 1842 { 1843 struct ieee80211_sub_if_data *sdata; 1844 struct mesh_path *mpath; 1845 1846 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1847 1848 rcu_read_lock(); 1849 mpath = mesh_path_lookup(sdata, dst); 1850 if (!mpath) { 1851 rcu_read_unlock(); 1852 return -ENOENT; 1853 } 1854 memcpy(dst, mpath->dst, ETH_ALEN); 1855 mpath_set_pinfo(mpath, next_hop, pinfo); 1856 rcu_read_unlock(); 1857 return 0; 1858 } 1859 1860 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1861 int idx, u8 *dst, u8 *next_hop, 1862 struct mpath_info *pinfo) 1863 { 1864 struct ieee80211_sub_if_data *sdata; 1865 struct mesh_path *mpath; 1866 1867 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1868 1869 rcu_read_lock(); 1870 mpath = mesh_path_lookup_by_idx(sdata, idx); 1871 if (!mpath) { 1872 rcu_read_unlock(); 1873 return -ENOENT; 1874 } 1875 memcpy(dst, mpath->dst, ETH_ALEN); 1876 mpath_set_pinfo(mpath, next_hop, pinfo); 1877 rcu_read_unlock(); 1878 return 0; 1879 } 1880 1881 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1882 struct mpath_info *pinfo) 1883 { 1884 memset(pinfo, 0, sizeof(*pinfo)); 1885 memcpy(mpp, mpath->mpp, ETH_ALEN); 1886 1887 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1888 } 1889 1890 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1891 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1892 1893 { 1894 struct ieee80211_sub_if_data *sdata; 1895 struct mesh_path *mpath; 1896 1897 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1898 1899 rcu_read_lock(); 1900 mpath = mpp_path_lookup(sdata, dst); 1901 if (!mpath) { 1902 rcu_read_unlock(); 1903 return -ENOENT; 1904 } 1905 memcpy(dst, mpath->dst, ETH_ALEN); 1906 mpp_set_pinfo(mpath, mpp, pinfo); 1907 rcu_read_unlock(); 1908 return 0; 1909 } 1910 1911 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1912 int idx, u8 *dst, u8 *mpp, 1913 struct mpath_info *pinfo) 1914 { 1915 struct ieee80211_sub_if_data *sdata; 1916 struct mesh_path *mpath; 1917 1918 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1919 1920 rcu_read_lock(); 1921 mpath = mpp_path_lookup_by_idx(sdata, idx); 1922 if (!mpath) { 1923 rcu_read_unlock(); 1924 return -ENOENT; 1925 } 1926 memcpy(dst, mpath->dst, ETH_ALEN); 1927 mpp_set_pinfo(mpath, mpp, pinfo); 1928 rcu_read_unlock(); 1929 return 0; 1930 } 1931 1932 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1933 struct net_device *dev, 1934 struct mesh_config *conf) 1935 { 1936 struct ieee80211_sub_if_data *sdata; 1937 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1938 1939 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1940 return 0; 1941 } 1942 1943 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1944 { 1945 return (mask >> (parm-1)) & 0x1; 1946 } 1947 1948 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1949 const struct mesh_setup *setup) 1950 { 1951 u8 *new_ie; 1952 const u8 *old_ie; 1953 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1954 struct ieee80211_sub_if_data, u.mesh); 1955 1956 /* allocate information elements */ 1957 new_ie = NULL; 1958 old_ie = ifmsh->ie; 1959 1960 if (setup->ie_len) { 1961 new_ie = kmemdup(setup->ie, setup->ie_len, 1962 GFP_KERNEL); 1963 if (!new_ie) 1964 return -ENOMEM; 1965 } 1966 ifmsh->ie_len = setup->ie_len; 1967 ifmsh->ie = new_ie; 1968 kfree(old_ie); 1969 1970 /* now copy the rest of the setup parameters */ 1971 ifmsh->mesh_id_len = setup->mesh_id_len; 1972 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1973 ifmsh->mesh_sp_id = setup->sync_method; 1974 ifmsh->mesh_pp_id = setup->path_sel_proto; 1975 ifmsh->mesh_pm_id = setup->path_metric; 1976 ifmsh->user_mpm = setup->user_mpm; 1977 ifmsh->mesh_auth_id = setup->auth_id; 1978 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1979 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 1980 if (setup->is_authenticated) 1981 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1982 if (setup->is_secure) 1983 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1984 1985 /* mcast rate setting in Mesh Node */ 1986 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1987 sizeof(setup->mcast_rate)); 1988 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1989 1990 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1991 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1992 1993 return 0; 1994 } 1995 1996 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1997 struct net_device *dev, u32 mask, 1998 const struct mesh_config *nconf) 1999 { 2000 struct mesh_config *conf; 2001 struct ieee80211_sub_if_data *sdata; 2002 struct ieee80211_if_mesh *ifmsh; 2003 2004 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2005 ifmsh = &sdata->u.mesh; 2006 2007 /* Set the config options which we are interested in setting */ 2008 conf = &(sdata->u.mesh.mshcfg); 2009 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2010 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2011 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2012 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2013 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2014 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2015 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2016 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2017 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2018 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2019 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2020 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2021 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2022 conf->element_ttl = nconf->element_ttl; 2023 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2024 if (ifmsh->user_mpm) 2025 return -EBUSY; 2026 conf->auto_open_plinks = nconf->auto_open_plinks; 2027 } 2028 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2029 conf->dot11MeshNbrOffsetMaxNeighbor = 2030 nconf->dot11MeshNbrOffsetMaxNeighbor; 2031 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2032 conf->dot11MeshHWMPmaxPREQretries = 2033 nconf->dot11MeshHWMPmaxPREQretries; 2034 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2035 conf->path_refresh_time = nconf->path_refresh_time; 2036 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2037 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2038 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2039 conf->dot11MeshHWMPactivePathTimeout = 2040 nconf->dot11MeshHWMPactivePathTimeout; 2041 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2042 conf->dot11MeshHWMPpreqMinInterval = 2043 nconf->dot11MeshHWMPpreqMinInterval; 2044 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2045 conf->dot11MeshHWMPperrMinInterval = 2046 nconf->dot11MeshHWMPperrMinInterval; 2047 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2048 mask)) 2049 conf->dot11MeshHWMPnetDiameterTraversalTime = 2050 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2051 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2052 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2053 ieee80211_mesh_root_setup(ifmsh); 2054 } 2055 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2056 /* our current gate announcement implementation rides on root 2057 * announcements, so require this ifmsh to also be a root node 2058 * */ 2059 if (nconf->dot11MeshGateAnnouncementProtocol && 2060 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2061 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2062 ieee80211_mesh_root_setup(ifmsh); 2063 } 2064 conf->dot11MeshGateAnnouncementProtocol = 2065 nconf->dot11MeshGateAnnouncementProtocol; 2066 } 2067 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2068 conf->dot11MeshHWMPRannInterval = 2069 nconf->dot11MeshHWMPRannInterval; 2070 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2071 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2072 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2073 /* our RSSI threshold implementation is supported only for 2074 * devices that report signal in dBm. 2075 */ 2076 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2077 return -ENOTSUPP; 2078 conf->rssi_threshold = nconf->rssi_threshold; 2079 } 2080 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2081 conf->ht_opmode = nconf->ht_opmode; 2082 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2083 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2084 } 2085 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2086 conf->dot11MeshHWMPactivePathToRootTimeout = 2087 nconf->dot11MeshHWMPactivePathToRootTimeout; 2088 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2089 conf->dot11MeshHWMProotInterval = 2090 nconf->dot11MeshHWMProotInterval; 2091 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2092 conf->dot11MeshHWMPconfirmationInterval = 2093 nconf->dot11MeshHWMPconfirmationInterval; 2094 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2095 conf->power_mode = nconf->power_mode; 2096 ieee80211_mps_local_status_update(sdata); 2097 } 2098 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2099 conf->dot11MeshAwakeWindowDuration = 2100 nconf->dot11MeshAwakeWindowDuration; 2101 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2102 conf->plink_timeout = nconf->plink_timeout; 2103 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2104 conf->dot11MeshConnectedToMeshGate = 2105 nconf->dot11MeshConnectedToMeshGate; 2106 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2107 return 0; 2108 } 2109 2110 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2111 const struct mesh_config *conf, 2112 const struct mesh_setup *setup) 2113 { 2114 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2115 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2116 int err; 2117 2118 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2119 err = copy_mesh_setup(ifmsh, setup); 2120 if (err) 2121 return err; 2122 2123 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2124 2125 /* can mesh use other SMPS modes? */ 2126 sdata->smps_mode = IEEE80211_SMPS_OFF; 2127 sdata->needed_rx_chains = sdata->local->rx_chains; 2128 2129 mutex_lock(&sdata->local->mtx); 2130 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2131 IEEE80211_CHANCTX_SHARED); 2132 mutex_unlock(&sdata->local->mtx); 2133 if (err) 2134 return err; 2135 2136 return ieee80211_start_mesh(sdata); 2137 } 2138 2139 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2140 { 2141 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2142 2143 ieee80211_stop_mesh(sdata); 2144 mutex_lock(&sdata->local->mtx); 2145 ieee80211_vif_release_channel(sdata); 2146 mutex_unlock(&sdata->local->mtx); 2147 2148 return 0; 2149 } 2150 #endif 2151 2152 static int ieee80211_change_bss(struct wiphy *wiphy, 2153 struct net_device *dev, 2154 struct bss_parameters *params) 2155 { 2156 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2157 struct ieee80211_supported_band *sband; 2158 u32 changed = 0; 2159 2160 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2161 return -ENOENT; 2162 2163 sband = ieee80211_get_sband(sdata); 2164 if (!sband) 2165 return -EINVAL; 2166 2167 if (params->use_cts_prot >= 0) { 2168 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2169 changed |= BSS_CHANGED_ERP_CTS_PROT; 2170 } 2171 if (params->use_short_preamble >= 0) { 2172 sdata->vif.bss_conf.use_short_preamble = 2173 params->use_short_preamble; 2174 changed |= BSS_CHANGED_ERP_PREAMBLE; 2175 } 2176 2177 if (!sdata->vif.bss_conf.use_short_slot && 2178 sband->band == NL80211_BAND_5GHZ) { 2179 sdata->vif.bss_conf.use_short_slot = true; 2180 changed |= BSS_CHANGED_ERP_SLOT; 2181 } 2182 2183 if (params->use_short_slot_time >= 0) { 2184 sdata->vif.bss_conf.use_short_slot = 2185 params->use_short_slot_time; 2186 changed |= BSS_CHANGED_ERP_SLOT; 2187 } 2188 2189 if (params->basic_rates) { 2190 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2191 wiphy->bands[sband->band], 2192 params->basic_rates, 2193 params->basic_rates_len, 2194 &sdata->vif.bss_conf.basic_rates); 2195 changed |= BSS_CHANGED_BASIC_RATES; 2196 ieee80211_check_rate_mask(sdata); 2197 } 2198 2199 if (params->ap_isolate >= 0) { 2200 if (params->ap_isolate) 2201 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2202 else 2203 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2204 ieee80211_check_fast_rx_iface(sdata); 2205 } 2206 2207 if (params->ht_opmode >= 0) { 2208 sdata->vif.bss_conf.ht_operation_mode = 2209 (u16) params->ht_opmode; 2210 changed |= BSS_CHANGED_HT; 2211 } 2212 2213 if (params->p2p_ctwindow >= 0) { 2214 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2215 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2216 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2217 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2218 changed |= BSS_CHANGED_P2P_PS; 2219 } 2220 2221 if (params->p2p_opp_ps > 0) { 2222 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2223 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2224 changed |= BSS_CHANGED_P2P_PS; 2225 } else if (params->p2p_opp_ps == 0) { 2226 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2227 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2228 changed |= BSS_CHANGED_P2P_PS; 2229 } 2230 2231 ieee80211_bss_info_change_notify(sdata, changed); 2232 2233 return 0; 2234 } 2235 2236 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2237 struct net_device *dev, 2238 struct ieee80211_txq_params *params) 2239 { 2240 struct ieee80211_local *local = wiphy_priv(wiphy); 2241 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2242 struct ieee80211_tx_queue_params p; 2243 2244 if (!local->ops->conf_tx) 2245 return -EOPNOTSUPP; 2246 2247 if (local->hw.queues < IEEE80211_NUM_ACS) 2248 return -EOPNOTSUPP; 2249 2250 memset(&p, 0, sizeof(p)); 2251 p.aifs = params->aifs; 2252 p.cw_max = params->cwmax; 2253 p.cw_min = params->cwmin; 2254 p.txop = params->txop; 2255 2256 /* 2257 * Setting tx queue params disables u-apsd because it's only 2258 * called in master mode. 2259 */ 2260 p.uapsd = false; 2261 2262 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2263 2264 sdata->tx_conf[params->ac] = p; 2265 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2266 wiphy_debug(local->hw.wiphy, 2267 "failed to set TX queue parameters for AC %d\n", 2268 params->ac); 2269 return -EINVAL; 2270 } 2271 2272 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2273 2274 return 0; 2275 } 2276 2277 #ifdef CONFIG_PM 2278 static int ieee80211_suspend(struct wiphy *wiphy, 2279 struct cfg80211_wowlan *wowlan) 2280 { 2281 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2282 } 2283 2284 static int ieee80211_resume(struct wiphy *wiphy) 2285 { 2286 return __ieee80211_resume(wiphy_priv(wiphy)); 2287 } 2288 #else 2289 #define ieee80211_suspend NULL 2290 #define ieee80211_resume NULL 2291 #endif 2292 2293 static int ieee80211_scan(struct wiphy *wiphy, 2294 struct cfg80211_scan_request *req) 2295 { 2296 struct ieee80211_sub_if_data *sdata; 2297 2298 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2299 2300 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2301 case NL80211_IFTYPE_STATION: 2302 case NL80211_IFTYPE_ADHOC: 2303 case NL80211_IFTYPE_MESH_POINT: 2304 case NL80211_IFTYPE_P2P_CLIENT: 2305 case NL80211_IFTYPE_P2P_DEVICE: 2306 break; 2307 case NL80211_IFTYPE_P2P_GO: 2308 if (sdata->local->ops->hw_scan) 2309 break; 2310 /* 2311 * FIXME: implement NoA while scanning in software, 2312 * for now fall through to allow scanning only when 2313 * beaconing hasn't been configured yet 2314 */ 2315 /* fall through */ 2316 case NL80211_IFTYPE_AP: 2317 /* 2318 * If the scan has been forced (and the driver supports 2319 * forcing), don't care about being beaconing already. 2320 * This will create problems to the attached stations (e.g. all 2321 * the frames sent while scanning on other channel will be 2322 * lost) 2323 */ 2324 if (sdata->u.ap.beacon && 2325 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2326 !(req->flags & NL80211_SCAN_FLAG_AP))) 2327 return -EOPNOTSUPP; 2328 break; 2329 case NL80211_IFTYPE_NAN: 2330 default: 2331 return -EOPNOTSUPP; 2332 } 2333 2334 return ieee80211_request_scan(sdata, req); 2335 } 2336 2337 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2338 { 2339 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2340 } 2341 2342 static int 2343 ieee80211_sched_scan_start(struct wiphy *wiphy, 2344 struct net_device *dev, 2345 struct cfg80211_sched_scan_request *req) 2346 { 2347 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2348 2349 if (!sdata->local->ops->sched_scan_start) 2350 return -EOPNOTSUPP; 2351 2352 return ieee80211_request_sched_scan_start(sdata, req); 2353 } 2354 2355 static int 2356 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2357 u64 reqid) 2358 { 2359 struct ieee80211_local *local = wiphy_priv(wiphy); 2360 2361 if (!local->ops->sched_scan_stop) 2362 return -EOPNOTSUPP; 2363 2364 return ieee80211_request_sched_scan_stop(local); 2365 } 2366 2367 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2368 struct cfg80211_auth_request *req) 2369 { 2370 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2371 } 2372 2373 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2374 struct cfg80211_assoc_request *req) 2375 { 2376 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2377 } 2378 2379 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2380 struct cfg80211_deauth_request *req) 2381 { 2382 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2383 } 2384 2385 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2386 struct cfg80211_disassoc_request *req) 2387 { 2388 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2389 } 2390 2391 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2392 struct cfg80211_ibss_params *params) 2393 { 2394 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2395 } 2396 2397 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2398 { 2399 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2400 } 2401 2402 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2403 struct ocb_setup *setup) 2404 { 2405 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2406 } 2407 2408 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2409 { 2410 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2411 } 2412 2413 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2414 int rate[NUM_NL80211_BANDS]) 2415 { 2416 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2417 2418 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2419 sizeof(int) * NUM_NL80211_BANDS); 2420 2421 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2422 2423 return 0; 2424 } 2425 2426 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2427 { 2428 struct ieee80211_local *local = wiphy_priv(wiphy); 2429 int err; 2430 2431 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2432 ieee80211_check_fast_xmit_all(local); 2433 2434 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2435 2436 if (err) { 2437 ieee80211_check_fast_xmit_all(local); 2438 return err; 2439 } 2440 } 2441 2442 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2443 (changed & WIPHY_PARAM_DYN_ACK)) { 2444 s16 coverage_class; 2445 2446 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2447 wiphy->coverage_class : -1; 2448 err = drv_set_coverage_class(local, coverage_class); 2449 2450 if (err) 2451 return err; 2452 } 2453 2454 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2455 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2456 2457 if (err) 2458 return err; 2459 } 2460 2461 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2462 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2463 return -EINVAL; 2464 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2465 } 2466 if (changed & WIPHY_PARAM_RETRY_LONG) { 2467 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2468 return -EINVAL; 2469 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2470 } 2471 if (changed & 2472 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2473 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2474 2475 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2476 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2477 WIPHY_PARAM_TXQ_QUANTUM)) 2478 ieee80211_txq_set_params(local); 2479 2480 return 0; 2481 } 2482 2483 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2484 struct wireless_dev *wdev, 2485 enum nl80211_tx_power_setting type, int mbm) 2486 { 2487 struct ieee80211_local *local = wiphy_priv(wiphy); 2488 struct ieee80211_sub_if_data *sdata; 2489 enum nl80211_tx_power_setting txp_type = type; 2490 bool update_txp_type = false; 2491 bool has_monitor = false; 2492 2493 if (wdev) { 2494 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2495 2496 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2497 sdata = rtnl_dereference(local->monitor_sdata); 2498 if (!sdata) 2499 return -EOPNOTSUPP; 2500 } 2501 2502 switch (type) { 2503 case NL80211_TX_POWER_AUTOMATIC: 2504 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2505 txp_type = NL80211_TX_POWER_LIMITED; 2506 break; 2507 case NL80211_TX_POWER_LIMITED: 2508 case NL80211_TX_POWER_FIXED: 2509 if (mbm < 0 || (mbm % 100)) 2510 return -EOPNOTSUPP; 2511 sdata->user_power_level = MBM_TO_DBM(mbm); 2512 break; 2513 } 2514 2515 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2516 update_txp_type = true; 2517 sdata->vif.bss_conf.txpower_type = txp_type; 2518 } 2519 2520 ieee80211_recalc_txpower(sdata, update_txp_type); 2521 2522 return 0; 2523 } 2524 2525 switch (type) { 2526 case NL80211_TX_POWER_AUTOMATIC: 2527 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2528 txp_type = NL80211_TX_POWER_LIMITED; 2529 break; 2530 case NL80211_TX_POWER_LIMITED: 2531 case NL80211_TX_POWER_FIXED: 2532 if (mbm < 0 || (mbm % 100)) 2533 return -EOPNOTSUPP; 2534 local->user_power_level = MBM_TO_DBM(mbm); 2535 break; 2536 } 2537 2538 mutex_lock(&local->iflist_mtx); 2539 list_for_each_entry(sdata, &local->interfaces, list) { 2540 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2541 has_monitor = true; 2542 continue; 2543 } 2544 sdata->user_power_level = local->user_power_level; 2545 if (txp_type != sdata->vif.bss_conf.txpower_type) 2546 update_txp_type = true; 2547 sdata->vif.bss_conf.txpower_type = txp_type; 2548 } 2549 list_for_each_entry(sdata, &local->interfaces, list) { 2550 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2551 continue; 2552 ieee80211_recalc_txpower(sdata, update_txp_type); 2553 } 2554 mutex_unlock(&local->iflist_mtx); 2555 2556 if (has_monitor) { 2557 sdata = rtnl_dereference(local->monitor_sdata); 2558 if (sdata) { 2559 sdata->user_power_level = local->user_power_level; 2560 if (txp_type != sdata->vif.bss_conf.txpower_type) 2561 update_txp_type = true; 2562 sdata->vif.bss_conf.txpower_type = txp_type; 2563 2564 ieee80211_recalc_txpower(sdata, update_txp_type); 2565 } 2566 } 2567 2568 return 0; 2569 } 2570 2571 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2572 struct wireless_dev *wdev, 2573 int *dbm) 2574 { 2575 struct ieee80211_local *local = wiphy_priv(wiphy); 2576 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2577 2578 if (local->ops->get_txpower) 2579 return drv_get_txpower(local, sdata, dbm); 2580 2581 if (!local->use_chanctx) 2582 *dbm = local->hw.conf.power_level; 2583 else 2584 *dbm = sdata->vif.bss_conf.txpower; 2585 2586 return 0; 2587 } 2588 2589 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2590 const u8 *addr) 2591 { 2592 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2593 2594 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2595 2596 return 0; 2597 } 2598 2599 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2600 { 2601 struct ieee80211_local *local = wiphy_priv(wiphy); 2602 2603 drv_rfkill_poll(local); 2604 } 2605 2606 #ifdef CONFIG_NL80211_TESTMODE 2607 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2608 struct wireless_dev *wdev, 2609 void *data, int len) 2610 { 2611 struct ieee80211_local *local = wiphy_priv(wiphy); 2612 struct ieee80211_vif *vif = NULL; 2613 2614 if (!local->ops->testmode_cmd) 2615 return -EOPNOTSUPP; 2616 2617 if (wdev) { 2618 struct ieee80211_sub_if_data *sdata; 2619 2620 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2621 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2622 vif = &sdata->vif; 2623 } 2624 2625 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2626 } 2627 2628 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2629 struct sk_buff *skb, 2630 struct netlink_callback *cb, 2631 void *data, int len) 2632 { 2633 struct ieee80211_local *local = wiphy_priv(wiphy); 2634 2635 if (!local->ops->testmode_dump) 2636 return -EOPNOTSUPP; 2637 2638 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2639 } 2640 #endif 2641 2642 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, 2643 enum ieee80211_smps_mode smps_mode) 2644 { 2645 struct sta_info *sta; 2646 enum ieee80211_smps_mode old_req; 2647 2648 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) 2649 return -EINVAL; 2650 2651 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2652 return 0; 2653 2654 old_req = sdata->u.ap.req_smps; 2655 sdata->u.ap.req_smps = smps_mode; 2656 2657 /* AUTOMATIC doesn't mean much for AP - don't allow it */ 2658 if (old_req == smps_mode || 2659 smps_mode == IEEE80211_SMPS_AUTOMATIC) 2660 return 0; 2661 2662 ht_dbg(sdata, 2663 "SMPS %d requested in AP mode, sending Action frame to %d stations\n", 2664 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); 2665 2666 mutex_lock(&sdata->local->sta_mtx); 2667 list_for_each_entry(sta, &sdata->local->sta_list, list) { 2668 /* 2669 * Only stations associated to our AP and 2670 * associated VLANs 2671 */ 2672 if (sta->sdata->bss != &sdata->u.ap) 2673 continue; 2674 2675 /* This station doesn't support MIMO - skip it */ 2676 if (sta_info_tx_streams(sta) == 1) 2677 continue; 2678 2679 /* 2680 * Don't wake up a STA just to send the action frame 2681 * unless we are getting more restrictive. 2682 */ 2683 if (test_sta_flag(sta, WLAN_STA_PS_STA) && 2684 !ieee80211_smps_is_restrictive(sta->known_smps_mode, 2685 smps_mode)) { 2686 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n", 2687 sta->sta.addr); 2688 continue; 2689 } 2690 2691 /* 2692 * If the STA is not authorized, wait until it gets 2693 * authorized and the action frame will be sent then. 2694 */ 2695 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2696 continue; 2697 2698 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); 2699 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr, 2700 sdata->vif.bss_conf.bssid); 2701 } 2702 mutex_unlock(&sdata->local->sta_mtx); 2703 2704 sdata->smps_mode = smps_mode; 2705 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2706 2707 return 0; 2708 } 2709 2710 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2711 enum ieee80211_smps_mode smps_mode) 2712 { 2713 const u8 *ap; 2714 enum ieee80211_smps_mode old_req; 2715 int err; 2716 struct sta_info *sta; 2717 bool tdls_peer_found = false; 2718 2719 lockdep_assert_held(&sdata->wdev.mtx); 2720 2721 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2722 return -EINVAL; 2723 2724 old_req = sdata->u.mgd.req_smps; 2725 sdata->u.mgd.req_smps = smps_mode; 2726 2727 if (old_req == smps_mode && 2728 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2729 return 0; 2730 2731 /* 2732 * If not associated, or current association is not an HT 2733 * association, there's no need to do anything, just store 2734 * the new value until we associate. 2735 */ 2736 if (!sdata->u.mgd.associated || 2737 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2738 return 0; 2739 2740 ap = sdata->u.mgd.associated->bssid; 2741 2742 rcu_read_lock(); 2743 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2744 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2745 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2746 continue; 2747 2748 tdls_peer_found = true; 2749 break; 2750 } 2751 rcu_read_unlock(); 2752 2753 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2754 if (tdls_peer_found || !sdata->u.mgd.powersave) 2755 smps_mode = IEEE80211_SMPS_OFF; 2756 else 2757 smps_mode = IEEE80211_SMPS_DYNAMIC; 2758 } 2759 2760 /* send SM PS frame to AP */ 2761 err = ieee80211_send_smps_action(sdata, smps_mode, 2762 ap, ap); 2763 if (err) 2764 sdata->u.mgd.req_smps = old_req; 2765 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2766 ieee80211_teardown_tdls_peers(sdata); 2767 2768 return err; 2769 } 2770 2771 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2772 bool enabled, int timeout) 2773 { 2774 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2775 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2776 2777 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2778 return -EOPNOTSUPP; 2779 2780 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2781 return -EOPNOTSUPP; 2782 2783 if (enabled == sdata->u.mgd.powersave && 2784 timeout == local->dynamic_ps_forced_timeout) 2785 return 0; 2786 2787 sdata->u.mgd.powersave = enabled; 2788 local->dynamic_ps_forced_timeout = timeout; 2789 2790 /* no change, but if automatic follow powersave */ 2791 sdata_lock(sdata); 2792 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2793 sdata_unlock(sdata); 2794 2795 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2796 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2797 2798 ieee80211_recalc_ps(local); 2799 ieee80211_recalc_ps_vif(sdata); 2800 ieee80211_check_fast_rx_iface(sdata); 2801 2802 return 0; 2803 } 2804 2805 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2806 struct net_device *dev, 2807 s32 rssi_thold, u32 rssi_hyst) 2808 { 2809 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2810 struct ieee80211_vif *vif = &sdata->vif; 2811 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2812 2813 if (rssi_thold == bss_conf->cqm_rssi_thold && 2814 rssi_hyst == bss_conf->cqm_rssi_hyst) 2815 return 0; 2816 2817 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2818 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2819 return -EOPNOTSUPP; 2820 2821 bss_conf->cqm_rssi_thold = rssi_thold; 2822 bss_conf->cqm_rssi_hyst = rssi_hyst; 2823 bss_conf->cqm_rssi_low = 0; 2824 bss_conf->cqm_rssi_high = 0; 2825 sdata->u.mgd.last_cqm_event_signal = 0; 2826 2827 /* tell the driver upon association, unless already associated */ 2828 if (sdata->u.mgd.associated && 2829 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2830 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2831 2832 return 0; 2833 } 2834 2835 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2836 struct net_device *dev, 2837 s32 rssi_low, s32 rssi_high) 2838 { 2839 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2840 struct ieee80211_vif *vif = &sdata->vif; 2841 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2842 2843 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2844 return -EOPNOTSUPP; 2845 2846 bss_conf->cqm_rssi_low = rssi_low; 2847 bss_conf->cqm_rssi_high = rssi_high; 2848 bss_conf->cqm_rssi_thold = 0; 2849 bss_conf->cqm_rssi_hyst = 0; 2850 sdata->u.mgd.last_cqm_event_signal = 0; 2851 2852 /* tell the driver upon association, unless already associated */ 2853 if (sdata->u.mgd.associated && 2854 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2855 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2856 2857 return 0; 2858 } 2859 2860 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2861 struct net_device *dev, 2862 const u8 *addr, 2863 const struct cfg80211_bitrate_mask *mask) 2864 { 2865 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2866 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2867 int i, ret; 2868 2869 if (!ieee80211_sdata_running(sdata)) 2870 return -ENETDOWN; 2871 2872 /* 2873 * If active validate the setting and reject it if it doesn't leave 2874 * at least one basic rate usable, since we really have to be able 2875 * to send something, and if we're an AP we have to be able to do 2876 * so at a basic rate so that all clients can receive it. 2877 */ 2878 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2879 sdata->vif.bss_conf.chandef.chan) { 2880 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2881 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2882 2883 if (!(mask->control[band].legacy & basic_rates)) 2884 return -EINVAL; 2885 } 2886 2887 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2888 ret = drv_set_bitrate_mask(local, sdata, mask); 2889 if (ret) 2890 return ret; 2891 } 2892 2893 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2894 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2895 int j; 2896 2897 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2898 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2899 sizeof(mask->control[i].ht_mcs)); 2900 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2901 mask->control[i].vht_mcs, 2902 sizeof(mask->control[i].vht_mcs)); 2903 2904 sdata->rc_has_mcs_mask[i] = false; 2905 sdata->rc_has_vht_mcs_mask[i] = false; 2906 if (!sband) 2907 continue; 2908 2909 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2910 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2911 sdata->rc_has_mcs_mask[i] = true; 2912 break; 2913 } 2914 } 2915 2916 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2917 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2918 sdata->rc_has_vht_mcs_mask[i] = true; 2919 break; 2920 } 2921 } 2922 } 2923 2924 return 0; 2925 } 2926 2927 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2928 struct net_device *dev, 2929 struct cfg80211_chan_def *chandef, 2930 u32 cac_time_ms) 2931 { 2932 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2933 struct ieee80211_local *local = sdata->local; 2934 int err; 2935 2936 mutex_lock(&local->mtx); 2937 if (!list_empty(&local->roc_list) || local->scanning) { 2938 err = -EBUSY; 2939 goto out_unlock; 2940 } 2941 2942 /* whatever, but channel contexts should not complain about that one */ 2943 sdata->smps_mode = IEEE80211_SMPS_OFF; 2944 sdata->needed_rx_chains = local->rx_chains; 2945 2946 err = ieee80211_vif_use_channel(sdata, chandef, 2947 IEEE80211_CHANCTX_SHARED); 2948 if (err) 2949 goto out_unlock; 2950 2951 ieee80211_queue_delayed_work(&sdata->local->hw, 2952 &sdata->dfs_cac_timer_work, 2953 msecs_to_jiffies(cac_time_ms)); 2954 2955 out_unlock: 2956 mutex_unlock(&local->mtx); 2957 return err; 2958 } 2959 2960 static struct cfg80211_beacon_data * 2961 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2962 { 2963 struct cfg80211_beacon_data *new_beacon; 2964 u8 *pos; 2965 int len; 2966 2967 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2968 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2969 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 2970 2971 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2972 if (!new_beacon) 2973 return NULL; 2974 2975 pos = (u8 *)(new_beacon + 1); 2976 if (beacon->head_len) { 2977 new_beacon->head_len = beacon->head_len; 2978 new_beacon->head = pos; 2979 memcpy(pos, beacon->head, beacon->head_len); 2980 pos += beacon->head_len; 2981 } 2982 if (beacon->tail_len) { 2983 new_beacon->tail_len = beacon->tail_len; 2984 new_beacon->tail = pos; 2985 memcpy(pos, beacon->tail, beacon->tail_len); 2986 pos += beacon->tail_len; 2987 } 2988 if (beacon->beacon_ies_len) { 2989 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2990 new_beacon->beacon_ies = pos; 2991 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2992 pos += beacon->beacon_ies_len; 2993 } 2994 if (beacon->proberesp_ies_len) { 2995 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2996 new_beacon->proberesp_ies = pos; 2997 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2998 pos += beacon->proberesp_ies_len; 2999 } 3000 if (beacon->assocresp_ies_len) { 3001 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3002 new_beacon->assocresp_ies = pos; 3003 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3004 pos += beacon->assocresp_ies_len; 3005 } 3006 if (beacon->probe_resp_len) { 3007 new_beacon->probe_resp_len = beacon->probe_resp_len; 3008 new_beacon->probe_resp = pos; 3009 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3010 pos += beacon->probe_resp_len; 3011 } 3012 3013 /* might copy -1, meaning no changes requested */ 3014 new_beacon->ftm_responder = beacon->ftm_responder; 3015 if (beacon->lci) { 3016 new_beacon->lci_len = beacon->lci_len; 3017 new_beacon->lci = pos; 3018 memcpy(pos, beacon->lci, beacon->lci_len); 3019 pos += beacon->lci_len; 3020 } 3021 if (beacon->civicloc) { 3022 new_beacon->civicloc_len = beacon->civicloc_len; 3023 new_beacon->civicloc = pos; 3024 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3025 pos += beacon->civicloc_len; 3026 } 3027 3028 return new_beacon; 3029 } 3030 3031 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3032 { 3033 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3034 3035 ieee80211_queue_work(&sdata->local->hw, 3036 &sdata->csa_finalize_work); 3037 } 3038 EXPORT_SYMBOL(ieee80211_csa_finish); 3039 3040 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3041 u32 *changed) 3042 { 3043 int err; 3044 3045 switch (sdata->vif.type) { 3046 case NL80211_IFTYPE_AP: 3047 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 3048 NULL); 3049 kfree(sdata->u.ap.next_beacon); 3050 sdata->u.ap.next_beacon = NULL; 3051 3052 if (err < 0) 3053 return err; 3054 *changed |= err; 3055 break; 3056 case NL80211_IFTYPE_ADHOC: 3057 err = ieee80211_ibss_finish_csa(sdata); 3058 if (err < 0) 3059 return err; 3060 *changed |= err; 3061 break; 3062 #ifdef CONFIG_MAC80211_MESH 3063 case NL80211_IFTYPE_MESH_POINT: 3064 err = ieee80211_mesh_finish_csa(sdata); 3065 if (err < 0) 3066 return err; 3067 *changed |= err; 3068 break; 3069 #endif 3070 default: 3071 WARN_ON(1); 3072 return -EINVAL; 3073 } 3074 3075 return 0; 3076 } 3077 3078 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3079 { 3080 struct ieee80211_local *local = sdata->local; 3081 u32 changed = 0; 3082 int err; 3083 3084 sdata_assert_lock(sdata); 3085 lockdep_assert_held(&local->mtx); 3086 lockdep_assert_held(&local->chanctx_mtx); 3087 3088 /* 3089 * using reservation isn't immediate as it may be deferred until later 3090 * with multi-vif. once reservation is complete it will re-schedule the 3091 * work with no reserved_chanctx so verify chandef to check if it 3092 * completed successfully 3093 */ 3094 3095 if (sdata->reserved_chanctx) { 3096 /* 3097 * with multi-vif csa driver may call ieee80211_csa_finish() 3098 * many times while waiting for other interfaces to use their 3099 * reservations 3100 */ 3101 if (sdata->reserved_ready) 3102 return 0; 3103 3104 return ieee80211_vif_use_reserved_context(sdata); 3105 } 3106 3107 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3108 &sdata->csa_chandef)) 3109 return -EINVAL; 3110 3111 sdata->vif.csa_active = false; 3112 3113 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3114 if (err) 3115 return err; 3116 3117 ieee80211_bss_info_change_notify(sdata, changed); 3118 3119 if (sdata->csa_block_tx) { 3120 ieee80211_wake_vif_queues(local, sdata, 3121 IEEE80211_QUEUE_STOP_REASON_CSA); 3122 sdata->csa_block_tx = false; 3123 } 3124 3125 err = drv_post_channel_switch(sdata); 3126 if (err) 3127 return err; 3128 3129 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3130 3131 return 0; 3132 } 3133 3134 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3135 { 3136 if (__ieee80211_csa_finalize(sdata)) { 3137 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3138 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3139 GFP_KERNEL); 3140 } 3141 } 3142 3143 void ieee80211_csa_finalize_work(struct work_struct *work) 3144 { 3145 struct ieee80211_sub_if_data *sdata = 3146 container_of(work, struct ieee80211_sub_if_data, 3147 csa_finalize_work); 3148 struct ieee80211_local *local = sdata->local; 3149 3150 sdata_lock(sdata); 3151 mutex_lock(&local->mtx); 3152 mutex_lock(&local->chanctx_mtx); 3153 3154 /* AP might have been stopped while waiting for the lock. */ 3155 if (!sdata->vif.csa_active) 3156 goto unlock; 3157 3158 if (!ieee80211_sdata_running(sdata)) 3159 goto unlock; 3160 3161 ieee80211_csa_finalize(sdata); 3162 3163 unlock: 3164 mutex_unlock(&local->chanctx_mtx); 3165 mutex_unlock(&local->mtx); 3166 sdata_unlock(sdata); 3167 } 3168 3169 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3170 struct cfg80211_csa_settings *params, 3171 u32 *changed) 3172 { 3173 struct ieee80211_csa_settings csa = {}; 3174 int err; 3175 3176 switch (sdata->vif.type) { 3177 case NL80211_IFTYPE_AP: 3178 sdata->u.ap.next_beacon = 3179 cfg80211_beacon_dup(¶ms->beacon_after); 3180 if (!sdata->u.ap.next_beacon) 3181 return -ENOMEM; 3182 3183 /* 3184 * With a count of 0, we don't have to wait for any 3185 * TBTT before switching, so complete the CSA 3186 * immediately. In theory, with a count == 1 we 3187 * should delay the switch until just before the next 3188 * TBTT, but that would complicate things so we switch 3189 * immediately too. If we would delay the switch 3190 * until the next TBTT, we would have to set the probe 3191 * response here. 3192 * 3193 * TODO: A channel switch with count <= 1 without 3194 * sending a CSA action frame is kind of useless, 3195 * because the clients won't know we're changing 3196 * channels. The action frame must be implemented 3197 * either here or in the userspace. 3198 */ 3199 if (params->count <= 1) 3200 break; 3201 3202 if ((params->n_counter_offsets_beacon > 3203 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3204 (params->n_counter_offsets_presp > 3205 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3206 return -EINVAL; 3207 3208 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3209 csa.counter_offsets_presp = params->counter_offsets_presp; 3210 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3211 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3212 csa.count = params->count; 3213 3214 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3215 if (err < 0) { 3216 kfree(sdata->u.ap.next_beacon); 3217 return err; 3218 } 3219 *changed |= err; 3220 3221 break; 3222 case NL80211_IFTYPE_ADHOC: 3223 if (!sdata->vif.bss_conf.ibss_joined) 3224 return -EINVAL; 3225 3226 if (params->chandef.width != sdata->u.ibss.chandef.width) 3227 return -EINVAL; 3228 3229 switch (params->chandef.width) { 3230 case NL80211_CHAN_WIDTH_40: 3231 if (cfg80211_get_chandef_type(¶ms->chandef) != 3232 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3233 return -EINVAL; 3234 case NL80211_CHAN_WIDTH_5: 3235 case NL80211_CHAN_WIDTH_10: 3236 case NL80211_CHAN_WIDTH_20_NOHT: 3237 case NL80211_CHAN_WIDTH_20: 3238 break; 3239 default: 3240 return -EINVAL; 3241 } 3242 3243 /* changes into another band are not supported */ 3244 if (sdata->u.ibss.chandef.chan->band != 3245 params->chandef.chan->band) 3246 return -EINVAL; 3247 3248 /* see comments in the NL80211_IFTYPE_AP block */ 3249 if (params->count > 1) { 3250 err = ieee80211_ibss_csa_beacon(sdata, params); 3251 if (err < 0) 3252 return err; 3253 *changed |= err; 3254 } 3255 3256 ieee80211_send_action_csa(sdata, params); 3257 3258 break; 3259 #ifdef CONFIG_MAC80211_MESH 3260 case NL80211_IFTYPE_MESH_POINT: { 3261 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3262 3263 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3264 return -EINVAL; 3265 3266 /* changes into another band are not supported */ 3267 if (sdata->vif.bss_conf.chandef.chan->band != 3268 params->chandef.chan->band) 3269 return -EINVAL; 3270 3271 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3272 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3273 if (!ifmsh->pre_value) 3274 ifmsh->pre_value = 1; 3275 else 3276 ifmsh->pre_value++; 3277 } 3278 3279 /* see comments in the NL80211_IFTYPE_AP block */ 3280 if (params->count > 1) { 3281 err = ieee80211_mesh_csa_beacon(sdata, params); 3282 if (err < 0) { 3283 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3284 return err; 3285 } 3286 *changed |= err; 3287 } 3288 3289 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3290 ieee80211_send_action_csa(sdata, params); 3291 3292 break; 3293 } 3294 #endif 3295 default: 3296 return -EOPNOTSUPP; 3297 } 3298 3299 return 0; 3300 } 3301 3302 static int 3303 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3304 struct cfg80211_csa_settings *params) 3305 { 3306 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3307 struct ieee80211_local *local = sdata->local; 3308 struct ieee80211_channel_switch ch_switch; 3309 struct ieee80211_chanctx_conf *conf; 3310 struct ieee80211_chanctx *chanctx; 3311 u32 changed = 0; 3312 int err; 3313 3314 sdata_assert_lock(sdata); 3315 lockdep_assert_held(&local->mtx); 3316 3317 if (!list_empty(&local->roc_list) || local->scanning) 3318 return -EBUSY; 3319 3320 if (sdata->wdev.cac_started) 3321 return -EBUSY; 3322 3323 if (cfg80211_chandef_identical(¶ms->chandef, 3324 &sdata->vif.bss_conf.chandef)) 3325 return -EINVAL; 3326 3327 /* don't allow another channel switch if one is already active. */ 3328 if (sdata->vif.csa_active) 3329 return -EBUSY; 3330 3331 mutex_lock(&local->chanctx_mtx); 3332 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3333 lockdep_is_held(&local->chanctx_mtx)); 3334 if (!conf) { 3335 err = -EBUSY; 3336 goto out; 3337 } 3338 3339 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3340 3341 ch_switch.timestamp = 0; 3342 ch_switch.device_timestamp = 0; 3343 ch_switch.block_tx = params->block_tx; 3344 ch_switch.chandef = params->chandef; 3345 ch_switch.count = params->count; 3346 3347 err = drv_pre_channel_switch(sdata, &ch_switch); 3348 if (err) 3349 goto out; 3350 3351 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3352 chanctx->mode, 3353 params->radar_required); 3354 if (err) 3355 goto out; 3356 3357 /* if reservation is invalid then this will fail */ 3358 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3359 if (err) { 3360 ieee80211_vif_unreserve_chanctx(sdata); 3361 goto out; 3362 } 3363 3364 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3365 if (err) { 3366 ieee80211_vif_unreserve_chanctx(sdata); 3367 goto out; 3368 } 3369 3370 sdata->csa_chandef = params->chandef; 3371 sdata->csa_block_tx = params->block_tx; 3372 sdata->vif.csa_active = true; 3373 3374 if (sdata->csa_block_tx) 3375 ieee80211_stop_vif_queues(local, sdata, 3376 IEEE80211_QUEUE_STOP_REASON_CSA); 3377 3378 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3379 params->count); 3380 3381 if (changed) { 3382 ieee80211_bss_info_change_notify(sdata, changed); 3383 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3384 } else { 3385 /* if the beacon didn't change, we can finalize immediately */ 3386 ieee80211_csa_finalize(sdata); 3387 } 3388 3389 out: 3390 mutex_unlock(&local->chanctx_mtx); 3391 return err; 3392 } 3393 3394 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3395 struct cfg80211_csa_settings *params) 3396 { 3397 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3398 struct ieee80211_local *local = sdata->local; 3399 int err; 3400 3401 mutex_lock(&local->mtx); 3402 err = __ieee80211_channel_switch(wiphy, dev, params); 3403 mutex_unlock(&local->mtx); 3404 3405 return err; 3406 } 3407 3408 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3409 { 3410 lockdep_assert_held(&local->mtx); 3411 3412 local->roc_cookie_counter++; 3413 3414 /* wow, you wrapped 64 bits ... more likely a bug */ 3415 if (WARN_ON(local->roc_cookie_counter == 0)) 3416 local->roc_cookie_counter++; 3417 3418 return local->roc_cookie_counter; 3419 } 3420 3421 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3422 u64 *cookie, gfp_t gfp) 3423 { 3424 unsigned long spin_flags; 3425 struct sk_buff *ack_skb; 3426 int id; 3427 3428 ack_skb = skb_copy(skb, gfp); 3429 if (!ack_skb) 3430 return -ENOMEM; 3431 3432 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3433 id = idr_alloc(&local->ack_status_frames, ack_skb, 3434 1, 0x10000, GFP_ATOMIC); 3435 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3436 3437 if (id < 0) { 3438 kfree_skb(ack_skb); 3439 return -ENOMEM; 3440 } 3441 3442 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3443 3444 *cookie = ieee80211_mgmt_tx_cookie(local); 3445 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3446 3447 return 0; 3448 } 3449 3450 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3451 struct wireless_dev *wdev, 3452 u16 frame_type, bool reg) 3453 { 3454 struct ieee80211_local *local = wiphy_priv(wiphy); 3455 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3456 3457 switch (frame_type) { 3458 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3459 if (reg) { 3460 local->probe_req_reg++; 3461 sdata->vif.probe_req_reg++; 3462 } else { 3463 if (local->probe_req_reg) 3464 local->probe_req_reg--; 3465 3466 if (sdata->vif.probe_req_reg) 3467 sdata->vif.probe_req_reg--; 3468 } 3469 3470 if (!local->open_count) 3471 break; 3472 3473 if (sdata->vif.probe_req_reg == 1) 3474 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ, 3475 FIF_PROBE_REQ); 3476 else if (sdata->vif.probe_req_reg == 0) 3477 drv_config_iface_filter(local, sdata, 0, 3478 FIF_PROBE_REQ); 3479 3480 ieee80211_configure_filter(local); 3481 break; 3482 default: 3483 break; 3484 } 3485 } 3486 3487 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3488 { 3489 struct ieee80211_local *local = wiphy_priv(wiphy); 3490 3491 if (local->started) 3492 return -EOPNOTSUPP; 3493 3494 return drv_set_antenna(local, tx_ant, rx_ant); 3495 } 3496 3497 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3498 { 3499 struct ieee80211_local *local = wiphy_priv(wiphy); 3500 3501 return drv_get_antenna(local, tx_ant, rx_ant); 3502 } 3503 3504 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3505 struct net_device *dev, 3506 struct cfg80211_gtk_rekey_data *data) 3507 { 3508 struct ieee80211_local *local = wiphy_priv(wiphy); 3509 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3510 3511 if (!local->ops->set_rekey_data) 3512 return -EOPNOTSUPP; 3513 3514 drv_set_rekey_data(local, sdata, data); 3515 3516 return 0; 3517 } 3518 3519 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3520 const u8 *peer, u64 *cookie) 3521 { 3522 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3523 struct ieee80211_local *local = sdata->local; 3524 struct ieee80211_qos_hdr *nullfunc; 3525 struct sk_buff *skb; 3526 int size = sizeof(*nullfunc); 3527 __le16 fc; 3528 bool qos; 3529 struct ieee80211_tx_info *info; 3530 struct sta_info *sta; 3531 struct ieee80211_chanctx_conf *chanctx_conf; 3532 enum nl80211_band band; 3533 int ret; 3534 3535 /* the lock is needed to assign the cookie later */ 3536 mutex_lock(&local->mtx); 3537 3538 rcu_read_lock(); 3539 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3540 if (WARN_ON(!chanctx_conf)) { 3541 ret = -EINVAL; 3542 goto unlock; 3543 } 3544 band = chanctx_conf->def.chan->band; 3545 sta = sta_info_get_bss(sdata, peer); 3546 if (sta) { 3547 qos = sta->sta.wme; 3548 } else { 3549 ret = -ENOLINK; 3550 goto unlock; 3551 } 3552 3553 if (qos) { 3554 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3555 IEEE80211_STYPE_QOS_NULLFUNC | 3556 IEEE80211_FCTL_FROMDS); 3557 } else { 3558 size -= 2; 3559 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3560 IEEE80211_STYPE_NULLFUNC | 3561 IEEE80211_FCTL_FROMDS); 3562 } 3563 3564 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3565 if (!skb) { 3566 ret = -ENOMEM; 3567 goto unlock; 3568 } 3569 3570 skb->dev = dev; 3571 3572 skb_reserve(skb, local->hw.extra_tx_headroom); 3573 3574 nullfunc = skb_put(skb, size); 3575 nullfunc->frame_control = fc; 3576 nullfunc->duration_id = 0; 3577 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3578 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3579 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3580 nullfunc->seq_ctrl = 0; 3581 3582 info = IEEE80211_SKB_CB(skb); 3583 3584 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3585 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3586 info->band = band; 3587 3588 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3589 skb->priority = 7; 3590 if (qos) 3591 nullfunc->qos_ctrl = cpu_to_le16(7); 3592 3593 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3594 if (ret) { 3595 kfree_skb(skb); 3596 goto unlock; 3597 } 3598 3599 local_bh_disable(); 3600 ieee80211_xmit(sdata, sta, skb, 0); 3601 local_bh_enable(); 3602 3603 ret = 0; 3604 unlock: 3605 rcu_read_unlock(); 3606 mutex_unlock(&local->mtx); 3607 3608 return ret; 3609 } 3610 3611 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3612 struct wireless_dev *wdev, 3613 struct cfg80211_chan_def *chandef) 3614 { 3615 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3616 struct ieee80211_local *local = wiphy_priv(wiphy); 3617 struct ieee80211_chanctx_conf *chanctx_conf; 3618 int ret = -ENODATA; 3619 3620 rcu_read_lock(); 3621 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3622 if (chanctx_conf) { 3623 *chandef = sdata->vif.bss_conf.chandef; 3624 ret = 0; 3625 } else if (local->open_count > 0 && 3626 local->open_count == local->monitors && 3627 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3628 if (local->use_chanctx) 3629 *chandef = local->monitor_chandef; 3630 else 3631 *chandef = local->_oper_chandef; 3632 ret = 0; 3633 } 3634 rcu_read_unlock(); 3635 3636 return ret; 3637 } 3638 3639 #ifdef CONFIG_PM 3640 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3641 { 3642 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3643 } 3644 #endif 3645 3646 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3647 struct net_device *dev, 3648 struct cfg80211_qos_map *qos_map) 3649 { 3650 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3651 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3652 3653 if (qos_map) { 3654 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3655 if (!new_qos_map) 3656 return -ENOMEM; 3657 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3658 } else { 3659 /* A NULL qos_map was passed to disable QoS mapping */ 3660 new_qos_map = NULL; 3661 } 3662 3663 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3664 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3665 if (old_qos_map) 3666 kfree_rcu(old_qos_map, rcu_head); 3667 3668 return 0; 3669 } 3670 3671 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3672 struct net_device *dev, 3673 struct cfg80211_chan_def *chandef) 3674 { 3675 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3676 int ret; 3677 u32 changed = 0; 3678 3679 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3680 if (ret == 0) 3681 ieee80211_bss_info_change_notify(sdata, changed); 3682 3683 return ret; 3684 } 3685 3686 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3687 u8 tsid, const u8 *peer, u8 up, 3688 u16 admitted_time) 3689 { 3690 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3691 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3692 int ac = ieee802_1d_to_ac[up]; 3693 3694 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3695 return -EOPNOTSUPP; 3696 3697 if (!(sdata->wmm_acm & BIT(up))) 3698 return -EINVAL; 3699 3700 if (ifmgd->tx_tspec[ac].admitted_time) 3701 return -EBUSY; 3702 3703 if (admitted_time) { 3704 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3705 ifmgd->tx_tspec[ac].tsid = tsid; 3706 ifmgd->tx_tspec[ac].up = up; 3707 } 3708 3709 return 0; 3710 } 3711 3712 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3713 u8 tsid, const u8 *peer) 3714 { 3715 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3716 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3717 struct ieee80211_local *local = wiphy_priv(wiphy); 3718 int ac; 3719 3720 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3721 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3722 3723 /* skip unused entries */ 3724 if (!tx_tspec->admitted_time) 3725 continue; 3726 3727 if (tx_tspec->tsid != tsid) 3728 continue; 3729 3730 /* due to this new packets will be reassigned to non-ACM ACs */ 3731 tx_tspec->up = -1; 3732 3733 /* Make sure that all packets have been sent to avoid to 3734 * restore the QoS params on packets that are still on the 3735 * queues. 3736 */ 3737 synchronize_net(); 3738 ieee80211_flush_queues(local, sdata, false); 3739 3740 /* restore the normal QoS parameters 3741 * (unconditionally to avoid races) 3742 */ 3743 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3744 tx_tspec->downgraded = false; 3745 ieee80211_sta_handle_tspec_ac_params(sdata); 3746 3747 /* finally clear all the data */ 3748 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3749 3750 return 0; 3751 } 3752 3753 return -ENOENT; 3754 } 3755 3756 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3757 u8 inst_id, 3758 enum nl80211_nan_func_term_reason reason, 3759 gfp_t gfp) 3760 { 3761 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3762 struct cfg80211_nan_func *func; 3763 u64 cookie; 3764 3765 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3766 return; 3767 3768 spin_lock_bh(&sdata->u.nan.func_lock); 3769 3770 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3771 if (WARN_ON(!func)) { 3772 spin_unlock_bh(&sdata->u.nan.func_lock); 3773 return; 3774 } 3775 3776 cookie = func->cookie; 3777 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3778 3779 spin_unlock_bh(&sdata->u.nan.func_lock); 3780 3781 cfg80211_free_nan_func(func); 3782 3783 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3784 reason, cookie, gfp); 3785 } 3786 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3787 3788 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3789 struct cfg80211_nan_match_params *match, 3790 gfp_t gfp) 3791 { 3792 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3793 struct cfg80211_nan_func *func; 3794 3795 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3796 return; 3797 3798 spin_lock_bh(&sdata->u.nan.func_lock); 3799 3800 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3801 if (WARN_ON(!func)) { 3802 spin_unlock_bh(&sdata->u.nan.func_lock); 3803 return; 3804 } 3805 match->cookie = func->cookie; 3806 3807 spin_unlock_bh(&sdata->u.nan.func_lock); 3808 3809 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3810 } 3811 EXPORT_SYMBOL(ieee80211_nan_func_match); 3812 3813 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3814 struct net_device *dev, 3815 const bool enabled) 3816 { 3817 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3818 3819 sdata->u.ap.multicast_to_unicast = enabled; 3820 3821 return 0; 3822 } 3823 3824 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 3825 struct txq_info *txqi) 3826 { 3827 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 3828 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 3829 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 3830 } 3831 3832 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 3833 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 3834 txqstats->backlog_packets = txqi->tin.backlog_packets; 3835 } 3836 3837 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 3838 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 3839 txqstats->flows = txqi->tin.flows; 3840 } 3841 3842 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 3843 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 3844 txqstats->drops = txqi->cstats.drop_count; 3845 } 3846 3847 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 3848 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 3849 txqstats->ecn_marks = txqi->cstats.ecn_mark; 3850 } 3851 3852 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 3853 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 3854 txqstats->overlimit = txqi->tin.overlimit; 3855 } 3856 3857 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 3858 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 3859 txqstats->collisions = txqi->tin.collisions; 3860 } 3861 3862 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 3863 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 3864 txqstats->tx_bytes = txqi->tin.tx_bytes; 3865 } 3866 3867 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 3868 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 3869 txqstats->tx_packets = txqi->tin.tx_packets; 3870 } 3871 } 3872 3873 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 3874 struct wireless_dev *wdev, 3875 struct cfg80211_txq_stats *txqstats) 3876 { 3877 struct ieee80211_local *local = wiphy_priv(wiphy); 3878 struct ieee80211_sub_if_data *sdata; 3879 int ret = 0; 3880 3881 if (!local->ops->wake_tx_queue) 3882 return 1; 3883 3884 spin_lock_bh(&local->fq.lock); 3885 rcu_read_lock(); 3886 3887 if (wdev) { 3888 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3889 if (!sdata->vif.txq) { 3890 ret = 1; 3891 goto out; 3892 } 3893 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 3894 } else { 3895 /* phy stats */ 3896 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 3897 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 3898 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 3899 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 3900 BIT(NL80211_TXQ_STATS_COLLISIONS) | 3901 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 3902 txqstats->backlog_packets = local->fq.backlog; 3903 txqstats->backlog_bytes = local->fq.memory_usage; 3904 txqstats->overlimit = local->fq.overlimit; 3905 txqstats->overmemory = local->fq.overmemory; 3906 txqstats->collisions = local->fq.collisions; 3907 txqstats->max_flows = local->fq.flows_cnt; 3908 } 3909 3910 out: 3911 rcu_read_unlock(); 3912 spin_unlock_bh(&local->fq.lock); 3913 3914 return ret; 3915 } 3916 3917 static int 3918 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 3919 struct net_device *dev, 3920 struct cfg80211_ftm_responder_stats *ftm_stats) 3921 { 3922 struct ieee80211_local *local = wiphy_priv(wiphy); 3923 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3924 3925 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 3926 } 3927 3928 static int 3929 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3930 struct cfg80211_pmsr_request *request) 3931 { 3932 struct ieee80211_local *local = wiphy_priv(wiphy); 3933 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3934 3935 return drv_start_pmsr(local, sdata, request); 3936 } 3937 3938 static void 3939 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3940 struct cfg80211_pmsr_request *request) 3941 { 3942 struct ieee80211_local *local = wiphy_priv(wiphy); 3943 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3944 3945 return drv_abort_pmsr(local, sdata, request); 3946 } 3947 3948 const struct cfg80211_ops mac80211_config_ops = { 3949 .add_virtual_intf = ieee80211_add_iface, 3950 .del_virtual_intf = ieee80211_del_iface, 3951 .change_virtual_intf = ieee80211_change_iface, 3952 .start_p2p_device = ieee80211_start_p2p_device, 3953 .stop_p2p_device = ieee80211_stop_p2p_device, 3954 .add_key = ieee80211_add_key, 3955 .del_key = ieee80211_del_key, 3956 .get_key = ieee80211_get_key, 3957 .set_default_key = ieee80211_config_default_key, 3958 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3959 .start_ap = ieee80211_start_ap, 3960 .change_beacon = ieee80211_change_beacon, 3961 .stop_ap = ieee80211_stop_ap, 3962 .add_station = ieee80211_add_station, 3963 .del_station = ieee80211_del_station, 3964 .change_station = ieee80211_change_station, 3965 .get_station = ieee80211_get_station, 3966 .dump_station = ieee80211_dump_station, 3967 .dump_survey = ieee80211_dump_survey, 3968 #ifdef CONFIG_MAC80211_MESH 3969 .add_mpath = ieee80211_add_mpath, 3970 .del_mpath = ieee80211_del_mpath, 3971 .change_mpath = ieee80211_change_mpath, 3972 .get_mpath = ieee80211_get_mpath, 3973 .dump_mpath = ieee80211_dump_mpath, 3974 .get_mpp = ieee80211_get_mpp, 3975 .dump_mpp = ieee80211_dump_mpp, 3976 .update_mesh_config = ieee80211_update_mesh_config, 3977 .get_mesh_config = ieee80211_get_mesh_config, 3978 .join_mesh = ieee80211_join_mesh, 3979 .leave_mesh = ieee80211_leave_mesh, 3980 #endif 3981 .join_ocb = ieee80211_join_ocb, 3982 .leave_ocb = ieee80211_leave_ocb, 3983 .change_bss = ieee80211_change_bss, 3984 .set_txq_params = ieee80211_set_txq_params, 3985 .set_monitor_channel = ieee80211_set_monitor_channel, 3986 .suspend = ieee80211_suspend, 3987 .resume = ieee80211_resume, 3988 .scan = ieee80211_scan, 3989 .abort_scan = ieee80211_abort_scan, 3990 .sched_scan_start = ieee80211_sched_scan_start, 3991 .sched_scan_stop = ieee80211_sched_scan_stop, 3992 .auth = ieee80211_auth, 3993 .assoc = ieee80211_assoc, 3994 .deauth = ieee80211_deauth, 3995 .disassoc = ieee80211_disassoc, 3996 .join_ibss = ieee80211_join_ibss, 3997 .leave_ibss = ieee80211_leave_ibss, 3998 .set_mcast_rate = ieee80211_set_mcast_rate, 3999 .set_wiphy_params = ieee80211_set_wiphy_params, 4000 .set_tx_power = ieee80211_set_tx_power, 4001 .get_tx_power = ieee80211_get_tx_power, 4002 .set_wds_peer = ieee80211_set_wds_peer, 4003 .rfkill_poll = ieee80211_rfkill_poll, 4004 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 4005 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 4006 .set_power_mgmt = ieee80211_set_power_mgmt, 4007 .set_bitrate_mask = ieee80211_set_bitrate_mask, 4008 .remain_on_channel = ieee80211_remain_on_channel, 4009 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 4010 .mgmt_tx = ieee80211_mgmt_tx, 4011 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 4012 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 4013 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 4014 .mgmt_frame_register = ieee80211_mgmt_frame_register, 4015 .set_antenna = ieee80211_set_antenna, 4016 .get_antenna = ieee80211_get_antenna, 4017 .set_rekey_data = ieee80211_set_rekey_data, 4018 .tdls_oper = ieee80211_tdls_oper, 4019 .tdls_mgmt = ieee80211_tdls_mgmt, 4020 .tdls_channel_switch = ieee80211_tdls_channel_switch, 4021 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 4022 .probe_client = ieee80211_probe_client, 4023 .set_noack_map = ieee80211_set_noack_map, 4024 #ifdef CONFIG_PM 4025 .set_wakeup = ieee80211_set_wakeup, 4026 #endif 4027 .get_channel = ieee80211_cfg_get_channel, 4028 .start_radar_detection = ieee80211_start_radar_detection, 4029 .channel_switch = ieee80211_channel_switch, 4030 .set_qos_map = ieee80211_set_qos_map, 4031 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 4032 .add_tx_ts = ieee80211_add_tx_ts, 4033 .del_tx_ts = ieee80211_del_tx_ts, 4034 .start_nan = ieee80211_start_nan, 4035 .stop_nan = ieee80211_stop_nan, 4036 .nan_change_conf = ieee80211_nan_change_conf, 4037 .add_nan_func = ieee80211_add_nan_func, 4038 .del_nan_func = ieee80211_del_nan_func, 4039 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 4040 .tx_control_port = ieee80211_tx_control_port, 4041 .get_txq_stats = ieee80211_get_txq_stats, 4042 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 4043 .start_pmsr = ieee80211_start_pmsr, 4044 .abort_pmsr = ieee80211_abort_pmsr, 4045 .probe_mesh_link = ieee80211_probe_mesh_link, 4046 }; 4047