1 /* 2 * mac80211 configuration hooks for cfg80211 3 * 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 5 * Copyright 2013-2015 Intel Mobile Communications GmbH 6 * Copyright (C) 2015-2017 Intel Deutschland GmbH 7 * Copyright (C) 2018 Intel Corporation 8 * 9 * This file is GPLv2 as found in COPYING. 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/if_ether.h> 19 #include <net/cfg80211.h> 20 #include "ieee80211_i.h" 21 #include "driver-ops.h" 22 #include "rate.h" 23 #include "mesh.h" 24 #include "wme.h" 25 26 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 27 struct vif_params *params) 28 { 29 bool mu_mimo_groups = false; 30 bool mu_mimo_follow = false; 31 32 if (params->vht_mumimo_groups) { 33 u64 membership; 34 35 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 36 37 memcpy(sdata->vif.bss_conf.mu_group.membership, 38 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 39 memcpy(sdata->vif.bss_conf.mu_group.position, 40 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 41 WLAN_USER_POSITION_LEN); 42 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS); 43 /* don't care about endianness - just check for 0 */ 44 memcpy(&membership, params->vht_mumimo_groups, 45 WLAN_MEMBERSHIP_LEN); 46 mu_mimo_groups = membership != 0; 47 } 48 49 if (params->vht_mumimo_follow_addr) { 50 mu_mimo_follow = 51 is_valid_ether_addr(params->vht_mumimo_follow_addr); 52 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 53 params->vht_mumimo_follow_addr); 54 } 55 56 sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 57 } 58 59 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 60 struct vif_params *params) 61 { 62 struct ieee80211_local *local = sdata->local; 63 struct ieee80211_sub_if_data *monitor_sdata; 64 65 /* check flags first */ 66 if (params->flags && ieee80211_sdata_running(sdata)) { 67 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 68 69 /* 70 * Prohibit MONITOR_FLAG_COOK_FRAMES and 71 * MONITOR_FLAG_ACTIVE to be changed while the 72 * interface is up. 73 * Else we would need to add a lot of cruft 74 * to update everything: 75 * cooked_mntrs, monitor and all fif_* counters 76 * reconfigure hardware 77 */ 78 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 79 return -EBUSY; 80 } 81 82 /* also validate MU-MIMO change */ 83 monitor_sdata = rtnl_dereference(local->monitor_sdata); 84 85 if (!monitor_sdata && 86 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 87 return -EOPNOTSUPP; 88 89 /* apply all changes now - no failures allowed */ 90 91 if (monitor_sdata) 92 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 93 94 if (params->flags) { 95 if (ieee80211_sdata_running(sdata)) { 96 ieee80211_adjust_monitor_flags(sdata, -1); 97 sdata->u.mntr.flags = params->flags; 98 ieee80211_adjust_monitor_flags(sdata, 1); 99 100 ieee80211_configure_filter(local); 101 } else { 102 /* 103 * Because the interface is down, ieee80211_do_stop 104 * and ieee80211_do_open take care of "everything" 105 * mentioned in the comment above. 106 */ 107 sdata->u.mntr.flags = params->flags; 108 } 109 } 110 111 return 0; 112 } 113 114 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 115 const char *name, 116 unsigned char name_assign_type, 117 enum nl80211_iftype type, 118 struct vif_params *params) 119 { 120 struct ieee80211_local *local = wiphy_priv(wiphy); 121 struct wireless_dev *wdev; 122 struct ieee80211_sub_if_data *sdata; 123 int err; 124 125 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 126 if (err) 127 return ERR_PTR(err); 128 129 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 130 131 if (type == NL80211_IFTYPE_MONITOR) { 132 err = ieee80211_set_mon_options(sdata, params); 133 if (err) { 134 ieee80211_if_remove(sdata); 135 return NULL; 136 } 137 } 138 139 return wdev; 140 } 141 142 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 143 { 144 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 145 146 return 0; 147 } 148 149 static int ieee80211_change_iface(struct wiphy *wiphy, 150 struct net_device *dev, 151 enum nl80211_iftype type, 152 struct vif_params *params) 153 { 154 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 155 int ret; 156 157 ret = ieee80211_if_change_type(sdata, type); 158 if (ret) 159 return ret; 160 161 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 162 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 163 ieee80211_check_fast_rx_iface(sdata); 164 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 165 sdata->u.mgd.use_4addr = params->use_4addr; 166 } 167 168 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 169 ret = ieee80211_set_mon_options(sdata, params); 170 if (ret) 171 return ret; 172 } 173 174 return 0; 175 } 176 177 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 178 struct wireless_dev *wdev) 179 { 180 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 181 int ret; 182 183 mutex_lock(&sdata->local->chanctx_mtx); 184 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 185 mutex_unlock(&sdata->local->chanctx_mtx); 186 if (ret < 0) 187 return ret; 188 189 return ieee80211_do_open(wdev, true); 190 } 191 192 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 193 struct wireless_dev *wdev) 194 { 195 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 196 } 197 198 static int ieee80211_start_nan(struct wiphy *wiphy, 199 struct wireless_dev *wdev, 200 struct cfg80211_nan_conf *conf) 201 { 202 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 203 int ret; 204 205 mutex_lock(&sdata->local->chanctx_mtx); 206 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 207 mutex_unlock(&sdata->local->chanctx_mtx); 208 if (ret < 0) 209 return ret; 210 211 ret = ieee80211_do_open(wdev, true); 212 if (ret) 213 return ret; 214 215 ret = drv_start_nan(sdata->local, sdata, conf); 216 if (ret) 217 ieee80211_sdata_stop(sdata); 218 219 sdata->u.nan.conf = *conf; 220 221 return ret; 222 } 223 224 static void ieee80211_stop_nan(struct wiphy *wiphy, 225 struct wireless_dev *wdev) 226 { 227 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 228 229 drv_stop_nan(sdata->local, sdata); 230 ieee80211_sdata_stop(sdata); 231 } 232 233 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 234 struct wireless_dev *wdev, 235 struct cfg80211_nan_conf *conf, 236 u32 changes) 237 { 238 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 239 struct cfg80211_nan_conf new_conf; 240 int ret = 0; 241 242 if (sdata->vif.type != NL80211_IFTYPE_NAN) 243 return -EOPNOTSUPP; 244 245 if (!ieee80211_sdata_running(sdata)) 246 return -ENETDOWN; 247 248 new_conf = sdata->u.nan.conf; 249 250 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 251 new_conf.master_pref = conf->master_pref; 252 253 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 254 new_conf.bands = conf->bands; 255 256 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 257 if (!ret) 258 sdata->u.nan.conf = new_conf; 259 260 return ret; 261 } 262 263 static int ieee80211_add_nan_func(struct wiphy *wiphy, 264 struct wireless_dev *wdev, 265 struct cfg80211_nan_func *nan_func) 266 { 267 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 268 int ret; 269 270 if (sdata->vif.type != NL80211_IFTYPE_NAN) 271 return -EOPNOTSUPP; 272 273 if (!ieee80211_sdata_running(sdata)) 274 return -ENETDOWN; 275 276 spin_lock_bh(&sdata->u.nan.func_lock); 277 278 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 279 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 280 GFP_ATOMIC); 281 spin_unlock_bh(&sdata->u.nan.func_lock); 282 283 if (ret < 0) 284 return ret; 285 286 nan_func->instance_id = ret; 287 288 WARN_ON(nan_func->instance_id == 0); 289 290 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 291 if (ret) { 292 spin_lock_bh(&sdata->u.nan.func_lock); 293 idr_remove(&sdata->u.nan.function_inst_ids, 294 nan_func->instance_id); 295 spin_unlock_bh(&sdata->u.nan.func_lock); 296 } 297 298 return ret; 299 } 300 301 static struct cfg80211_nan_func * 302 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 303 u64 cookie) 304 { 305 struct cfg80211_nan_func *func; 306 int id; 307 308 lockdep_assert_held(&sdata->u.nan.func_lock); 309 310 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 311 if (func->cookie == cookie) 312 return func; 313 } 314 315 return NULL; 316 } 317 318 static void ieee80211_del_nan_func(struct wiphy *wiphy, 319 struct wireless_dev *wdev, u64 cookie) 320 { 321 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 322 struct cfg80211_nan_func *func; 323 u8 instance_id = 0; 324 325 if (sdata->vif.type != NL80211_IFTYPE_NAN || 326 !ieee80211_sdata_running(sdata)) 327 return; 328 329 spin_lock_bh(&sdata->u.nan.func_lock); 330 331 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 332 if (func) 333 instance_id = func->instance_id; 334 335 spin_unlock_bh(&sdata->u.nan.func_lock); 336 337 if (instance_id) 338 drv_del_nan_func(sdata->local, sdata, instance_id); 339 } 340 341 static int ieee80211_set_noack_map(struct wiphy *wiphy, 342 struct net_device *dev, 343 u16 noack_map) 344 { 345 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 346 347 sdata->noack_map = noack_map; 348 349 ieee80211_check_fast_xmit_iface(sdata); 350 351 return 0; 352 } 353 354 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 355 const u8 *mac_addr, u8 key_idx) 356 { 357 struct ieee80211_local *local = sdata->local; 358 struct ieee80211_key *key; 359 struct sta_info *sta; 360 int ret = -EINVAL; 361 362 if (!wiphy_ext_feature_isset(local->hw.wiphy, 363 NL80211_EXT_FEATURE_EXT_KEY_ID)) 364 return -EINVAL; 365 366 sta = sta_info_get_bss(sdata, mac_addr); 367 368 if (!sta) 369 return -EINVAL; 370 371 if (sta->ptk_idx == key_idx) 372 return 0; 373 374 mutex_lock(&local->key_mtx); 375 key = key_mtx_dereference(local, sta->ptk[key_idx]); 376 377 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 378 ret = ieee80211_set_tx_key(key); 379 380 mutex_unlock(&local->key_mtx); 381 return ret; 382 } 383 384 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 385 u8 key_idx, bool pairwise, const u8 *mac_addr, 386 struct key_params *params) 387 { 388 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 389 struct ieee80211_local *local = sdata->local; 390 struct sta_info *sta = NULL; 391 const struct ieee80211_cipher_scheme *cs = NULL; 392 struct ieee80211_key *key; 393 int err; 394 395 if (!ieee80211_sdata_running(sdata)) 396 return -ENETDOWN; 397 398 if (pairwise && params->mode == NL80211_KEY_SET_TX) 399 return ieee80211_set_tx(sdata, mac_addr, key_idx); 400 401 /* reject WEP and TKIP keys if WEP failed to initialize */ 402 switch (params->cipher) { 403 case WLAN_CIPHER_SUITE_WEP40: 404 case WLAN_CIPHER_SUITE_TKIP: 405 case WLAN_CIPHER_SUITE_WEP104: 406 if (IS_ERR(local->wep_tx_tfm)) 407 return -EINVAL; 408 break; 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 return err; 941 if (err == 0) 942 changed |= BSS_CHANGED_AP_PROBE_RESP; 943 944 if (params->ftm_responder != -1) { 945 sdata->vif.bss_conf.ftm_responder = params->ftm_responder; 946 err = ieee80211_set_ftm_responder_params(sdata, 947 params->lci, 948 params->lci_len, 949 params->civicloc, 950 params->civicloc_len); 951 952 if (err < 0) 953 return err; 954 955 changed |= BSS_CHANGED_FTM_RESPONDER; 956 } 957 958 rcu_assign_pointer(sdata->u.ap.beacon, new); 959 960 if (old) 961 kfree_rcu(old, rcu_head); 962 963 return changed; 964 } 965 966 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 967 struct cfg80211_ap_settings *params) 968 { 969 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 970 struct ieee80211_local *local = sdata->local; 971 struct beacon_data *old; 972 struct ieee80211_sub_if_data *vlan; 973 u32 changed = BSS_CHANGED_BEACON_INT | 974 BSS_CHANGED_BEACON_ENABLED | 975 BSS_CHANGED_BEACON | 976 BSS_CHANGED_SSID | 977 BSS_CHANGED_P2P_PS | 978 BSS_CHANGED_TXPOWER; 979 int err; 980 int prev_beacon_int; 981 982 old = sdata_dereference(sdata->u.ap.beacon, sdata); 983 if (old) 984 return -EALREADY; 985 986 switch (params->smps_mode) { 987 case NL80211_SMPS_OFF: 988 sdata->smps_mode = IEEE80211_SMPS_OFF; 989 break; 990 case NL80211_SMPS_STATIC: 991 sdata->smps_mode = IEEE80211_SMPS_STATIC; 992 break; 993 case NL80211_SMPS_DYNAMIC: 994 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC; 995 break; 996 default: 997 return -EINVAL; 998 } 999 sdata->u.ap.req_smps = sdata->smps_mode; 1000 1001 sdata->needed_rx_chains = sdata->local->rx_chains; 1002 1003 prev_beacon_int = sdata->vif.bss_conf.beacon_int; 1004 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 1005 1006 if (params->he_cap) 1007 sdata->vif.bss_conf.he_support = true; 1008 1009 mutex_lock(&local->mtx); 1010 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 1011 IEEE80211_CHANCTX_SHARED); 1012 if (!err) 1013 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 1014 mutex_unlock(&local->mtx); 1015 if (err) { 1016 sdata->vif.bss_conf.beacon_int = prev_beacon_int; 1017 return err; 1018 } 1019 1020 /* 1021 * Apply control port protocol, this allows us to 1022 * not encrypt dynamic WEP control frames. 1023 */ 1024 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1025 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1026 sdata->control_port_over_nl80211 = 1027 params->crypto.control_port_over_nl80211; 1028 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 1029 ¶ms->crypto, 1030 sdata->vif.type); 1031 1032 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1033 vlan->control_port_protocol = 1034 params->crypto.control_port_ethertype; 1035 vlan->control_port_no_encrypt = 1036 params->crypto.control_port_no_encrypt; 1037 vlan->control_port_over_nl80211 = 1038 params->crypto.control_port_over_nl80211; 1039 vlan->encrypt_headroom = 1040 ieee80211_cs_headroom(sdata->local, 1041 ¶ms->crypto, 1042 vlan->vif.type); 1043 } 1044 1045 sdata->vif.bss_conf.dtim_period = params->dtim_period; 1046 sdata->vif.bss_conf.enable_beacon = true; 1047 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 1048 1049 sdata->vif.bss_conf.ssid_len = params->ssid_len; 1050 if (params->ssid_len) 1051 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 1052 params->ssid_len); 1053 sdata->vif.bss_conf.hidden_ssid = 1054 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1055 1056 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 1057 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 1058 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 1059 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1060 if (params->p2p_opp_ps) 1061 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1062 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1063 1064 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); 1065 if (err < 0) { 1066 ieee80211_vif_release_channel(sdata); 1067 return err; 1068 } 1069 changed |= err; 1070 1071 err = drv_start_ap(sdata->local, sdata); 1072 if (err) { 1073 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1074 1075 if (old) 1076 kfree_rcu(old, rcu_head); 1077 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1078 ieee80211_vif_release_channel(sdata); 1079 return err; 1080 } 1081 1082 ieee80211_recalc_dtim(local, sdata); 1083 ieee80211_bss_info_change_notify(sdata, changed); 1084 1085 netif_carrier_on(dev); 1086 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1087 netif_carrier_on(vlan->dev); 1088 1089 return 0; 1090 } 1091 1092 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1093 struct cfg80211_beacon_data *params) 1094 { 1095 struct ieee80211_sub_if_data *sdata; 1096 struct beacon_data *old; 1097 int err; 1098 1099 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1100 sdata_assert_lock(sdata); 1101 1102 /* don't allow changing the beacon while CSA is in place - offset 1103 * of channel switch counter may change 1104 */ 1105 if (sdata->vif.csa_active) 1106 return -EBUSY; 1107 1108 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1109 if (!old) 1110 return -ENOENT; 1111 1112 err = ieee80211_assign_beacon(sdata, params, NULL); 1113 if (err < 0) 1114 return err; 1115 ieee80211_bss_info_change_notify(sdata, err); 1116 return 0; 1117 } 1118 1119 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1120 { 1121 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1122 struct ieee80211_sub_if_data *vlan; 1123 struct ieee80211_local *local = sdata->local; 1124 struct beacon_data *old_beacon; 1125 struct probe_resp *old_probe_resp; 1126 struct cfg80211_chan_def chandef; 1127 1128 sdata_assert_lock(sdata); 1129 1130 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1131 if (!old_beacon) 1132 return -ENOENT; 1133 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1134 1135 /* abort any running channel switch */ 1136 mutex_lock(&local->mtx); 1137 sdata->vif.csa_active = false; 1138 if (sdata->csa_block_tx) { 1139 ieee80211_wake_vif_queues(local, sdata, 1140 IEEE80211_QUEUE_STOP_REASON_CSA); 1141 sdata->csa_block_tx = false; 1142 } 1143 1144 mutex_unlock(&local->mtx); 1145 1146 kfree(sdata->u.ap.next_beacon); 1147 sdata->u.ap.next_beacon = NULL; 1148 1149 /* turn off carrier for this interface and dependent VLANs */ 1150 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1151 netif_carrier_off(vlan->dev); 1152 netif_carrier_off(dev); 1153 1154 /* remove beacon and probe response */ 1155 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1156 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1157 kfree_rcu(old_beacon, rcu_head); 1158 if (old_probe_resp) 1159 kfree_rcu(old_probe_resp, rcu_head); 1160 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF; 1161 1162 kfree(sdata->vif.bss_conf.ftmr_params); 1163 sdata->vif.bss_conf.ftmr_params = NULL; 1164 1165 __sta_info_flush(sdata, true); 1166 ieee80211_free_keys(sdata, true); 1167 1168 sdata->vif.bss_conf.enable_beacon = false; 1169 sdata->vif.bss_conf.ssid_len = 0; 1170 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1171 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1172 1173 if (sdata->wdev.cac_started) { 1174 chandef = sdata->vif.bss_conf.chandef; 1175 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1176 cfg80211_cac_event(sdata->dev, &chandef, 1177 NL80211_RADAR_CAC_ABORTED, 1178 GFP_KERNEL); 1179 } 1180 1181 drv_stop_ap(sdata->local, sdata); 1182 1183 /* free all potentially still buffered bcast frames */ 1184 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1185 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1186 1187 mutex_lock(&local->mtx); 1188 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1189 ieee80211_vif_release_channel(sdata); 1190 mutex_unlock(&local->mtx); 1191 1192 return 0; 1193 } 1194 1195 static int sta_apply_auth_flags(struct ieee80211_local *local, 1196 struct sta_info *sta, 1197 u32 mask, u32 set) 1198 { 1199 int ret; 1200 1201 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1202 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1203 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1204 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1205 if (ret) 1206 return ret; 1207 } 1208 1209 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1210 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1211 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1212 /* 1213 * When peer becomes associated, init rate control as 1214 * well. Some drivers require rate control initialized 1215 * before drv_sta_state() is called. 1216 */ 1217 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1218 rate_control_rate_init(sta); 1219 1220 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1221 if (ret) 1222 return ret; 1223 } 1224 1225 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1226 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1227 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1228 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1229 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1230 else 1231 ret = 0; 1232 if (ret) 1233 return ret; 1234 } 1235 1236 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1237 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1238 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1239 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1240 if (ret) 1241 return ret; 1242 } 1243 1244 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1245 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1246 test_sta_flag(sta, WLAN_STA_AUTH)) { 1247 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1248 if (ret) 1249 return ret; 1250 } 1251 1252 return 0; 1253 } 1254 1255 static void sta_apply_mesh_params(struct ieee80211_local *local, 1256 struct sta_info *sta, 1257 struct station_parameters *params) 1258 { 1259 #ifdef CONFIG_MAC80211_MESH 1260 struct ieee80211_sub_if_data *sdata = sta->sdata; 1261 u32 changed = 0; 1262 1263 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1264 switch (params->plink_state) { 1265 case NL80211_PLINK_ESTAB: 1266 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1267 changed = mesh_plink_inc_estab_count(sdata); 1268 sta->mesh->plink_state = params->plink_state; 1269 sta->mesh->aid = params->peer_aid; 1270 1271 ieee80211_mps_sta_status_update(sta); 1272 changed |= ieee80211_mps_set_sta_local_pm(sta, 1273 sdata->u.mesh.mshcfg.power_mode); 1274 1275 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1276 /* init at low value */ 1277 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1278 1279 break; 1280 case NL80211_PLINK_LISTEN: 1281 case NL80211_PLINK_BLOCKED: 1282 case NL80211_PLINK_OPN_SNT: 1283 case NL80211_PLINK_OPN_RCVD: 1284 case NL80211_PLINK_CNF_RCVD: 1285 case NL80211_PLINK_HOLDING: 1286 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1287 changed = mesh_plink_dec_estab_count(sdata); 1288 sta->mesh->plink_state = params->plink_state; 1289 1290 ieee80211_mps_sta_status_update(sta); 1291 changed |= ieee80211_mps_set_sta_local_pm(sta, 1292 NL80211_MESH_POWER_UNKNOWN); 1293 break; 1294 default: 1295 /* nothing */ 1296 break; 1297 } 1298 } 1299 1300 switch (params->plink_action) { 1301 case NL80211_PLINK_ACTION_NO_ACTION: 1302 /* nothing */ 1303 break; 1304 case NL80211_PLINK_ACTION_OPEN: 1305 changed |= mesh_plink_open(sta); 1306 break; 1307 case NL80211_PLINK_ACTION_BLOCK: 1308 changed |= mesh_plink_block(sta); 1309 break; 1310 } 1311 1312 if (params->local_pm) 1313 changed |= ieee80211_mps_set_sta_local_pm(sta, 1314 params->local_pm); 1315 1316 ieee80211_mbss_info_change_notify(sdata, changed); 1317 #endif 1318 } 1319 1320 static int sta_apply_parameters(struct ieee80211_local *local, 1321 struct sta_info *sta, 1322 struct station_parameters *params) 1323 { 1324 int ret = 0; 1325 struct ieee80211_supported_band *sband; 1326 struct ieee80211_sub_if_data *sdata = sta->sdata; 1327 u32 mask, set; 1328 1329 sband = ieee80211_get_sband(sdata); 1330 if (!sband) 1331 return -EINVAL; 1332 1333 mask = params->sta_flags_mask; 1334 set = params->sta_flags_set; 1335 1336 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1337 /* 1338 * In mesh mode, ASSOCIATED isn't part of the nl80211 1339 * API but must follow AUTHENTICATED for driver state. 1340 */ 1341 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1342 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1343 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1344 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1345 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1346 /* 1347 * TDLS -- everything follows authorized, but 1348 * only becoming authorized is possible, not 1349 * going back 1350 */ 1351 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1352 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1353 BIT(NL80211_STA_FLAG_ASSOCIATED); 1354 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1355 BIT(NL80211_STA_FLAG_ASSOCIATED); 1356 } 1357 } 1358 1359 if (mask & BIT(NL80211_STA_FLAG_WME) && 1360 local->hw.queues >= IEEE80211_NUM_ACS) 1361 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1362 1363 /* auth flags will be set later for TDLS, 1364 * and for unassociated stations that move to assocaited */ 1365 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1366 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1367 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1368 ret = sta_apply_auth_flags(local, sta, mask, set); 1369 if (ret) 1370 return ret; 1371 } 1372 1373 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1374 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1375 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1376 else 1377 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1378 } 1379 1380 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1381 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1382 if (set & BIT(NL80211_STA_FLAG_MFP)) 1383 set_sta_flag(sta, WLAN_STA_MFP); 1384 else 1385 clear_sta_flag(sta, WLAN_STA_MFP); 1386 } 1387 1388 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1389 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1390 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1391 else 1392 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1393 } 1394 1395 /* mark TDLS channel switch support, if the AP allows it */ 1396 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1397 !sdata->u.mgd.tdls_chan_switch_prohibited && 1398 params->ext_capab_len >= 4 && 1399 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1400 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1401 1402 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1403 !sdata->u.mgd.tdls_wider_bw_prohibited && 1404 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1405 params->ext_capab_len >= 8 && 1406 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1407 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1408 1409 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1410 sta->sta.uapsd_queues = params->uapsd_queues; 1411 sta->sta.max_sp = params->max_sp; 1412 } 1413 1414 /* The sender might not have sent the last bit, consider it to be 0 */ 1415 if (params->ext_capab_len >= 8) { 1416 u8 val = (params->ext_capab[7] & 1417 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1418 1419 /* we did get all the bits, take the MSB as well */ 1420 if (params->ext_capab_len >= 9) { 1421 u8 val_msb = params->ext_capab[8] & 1422 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1423 val_msb <<= 1; 1424 val |= val_msb; 1425 } 1426 1427 switch (val) { 1428 case 1: 1429 sta->sta.max_amsdu_subframes = 32; 1430 break; 1431 case 2: 1432 sta->sta.max_amsdu_subframes = 16; 1433 break; 1434 case 3: 1435 sta->sta.max_amsdu_subframes = 8; 1436 break; 1437 default: 1438 sta->sta.max_amsdu_subframes = 0; 1439 } 1440 } 1441 1442 /* 1443 * cfg80211 validates this (1-2007) and allows setting the AID 1444 * only when creating a new station entry 1445 */ 1446 if (params->aid) 1447 sta->sta.aid = params->aid; 1448 1449 /* 1450 * Some of the following updates would be racy if called on an 1451 * existing station, via ieee80211_change_station(). However, 1452 * all such changes are rejected by cfg80211 except for updates 1453 * changing the supported rates on an existing but not yet used 1454 * TDLS peer. 1455 */ 1456 1457 if (params->listen_interval >= 0) 1458 sta->listen_interval = params->listen_interval; 1459 1460 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) { 1461 sta->sta.txpwr.type = params->txpwr.type; 1462 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1463 sta->sta.txpwr.power = params->txpwr.power; 1464 ret = drv_sta_set_txpwr(local, sdata, sta); 1465 if (ret) 1466 return ret; 1467 } 1468 1469 if (params->supported_rates) { 1470 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1471 sband, params->supported_rates, 1472 params->supported_rates_len, 1473 &sta->sta.supp_rates[sband->band]); 1474 } 1475 1476 if (params->ht_capa) 1477 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1478 params->ht_capa, sta); 1479 1480 /* VHT can override some HT caps such as the A-MSDU max length */ 1481 if (params->vht_capa) 1482 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1483 params->vht_capa, sta); 1484 1485 if (params->he_capa) 1486 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1487 (void *)params->he_capa, 1488 params->he_capa_len, sta); 1489 1490 if (params->opmode_notif_used) { 1491 /* returned value is only needed for rc update, but the 1492 * rc isn't initialized here yet, so ignore it 1493 */ 1494 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1495 sband->band); 1496 } 1497 1498 if (params->support_p2p_ps >= 0) 1499 sta->sta.support_p2p_ps = params->support_p2p_ps; 1500 1501 if (ieee80211_vif_is_mesh(&sdata->vif)) 1502 sta_apply_mesh_params(local, sta, params); 1503 1504 if (params->airtime_weight) 1505 sta->airtime_weight = params->airtime_weight; 1506 1507 /* set the STA state after all sta info from usermode has been set */ 1508 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1509 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1510 ret = sta_apply_auth_flags(local, sta, mask, set); 1511 if (ret) 1512 return ret; 1513 } 1514 1515 return 0; 1516 } 1517 1518 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1519 const u8 *mac, 1520 struct station_parameters *params) 1521 { 1522 struct ieee80211_local *local = wiphy_priv(wiphy); 1523 struct sta_info *sta; 1524 struct ieee80211_sub_if_data *sdata; 1525 int err; 1526 int layer2_update; 1527 1528 if (params->vlan) { 1529 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1530 1531 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1532 sdata->vif.type != NL80211_IFTYPE_AP) 1533 return -EINVAL; 1534 } else 1535 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1536 1537 if (ether_addr_equal(mac, sdata->vif.addr)) 1538 return -EINVAL; 1539 1540 if (is_multicast_ether_addr(mac)) 1541 return -EINVAL; 1542 1543 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1544 if (!sta) 1545 return -ENOMEM; 1546 1547 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1548 sta->sta.tdls = true; 1549 1550 if (sta->sta.tdls && sdata->vif.type == NL80211_IFTYPE_STATION && 1551 !sdata->u.mgd.associated) 1552 return -EINVAL; 1553 1554 err = sta_apply_parameters(local, sta, params); 1555 if (err) { 1556 sta_info_free(local, sta); 1557 return err; 1558 } 1559 1560 /* 1561 * for TDLS and for unassociated station, rate control should be 1562 * initialized only when rates are known and station is marked 1563 * authorized/associated 1564 */ 1565 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1566 test_sta_flag(sta, WLAN_STA_ASSOC)) 1567 rate_control_rate_init(sta); 1568 1569 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 1570 sdata->vif.type == NL80211_IFTYPE_AP; 1571 1572 err = sta_info_insert_rcu(sta); 1573 if (err) { 1574 rcu_read_unlock(); 1575 return err; 1576 } 1577 1578 if (layer2_update) 1579 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1580 1581 rcu_read_unlock(); 1582 1583 return 0; 1584 } 1585 1586 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1587 struct station_del_parameters *params) 1588 { 1589 struct ieee80211_sub_if_data *sdata; 1590 1591 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1592 1593 if (params->mac) 1594 return sta_info_destroy_addr_bss(sdata, params->mac); 1595 1596 sta_info_flush(sdata); 1597 return 0; 1598 } 1599 1600 static int ieee80211_change_station(struct wiphy *wiphy, 1601 struct net_device *dev, const u8 *mac, 1602 struct station_parameters *params) 1603 { 1604 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1605 struct ieee80211_local *local = wiphy_priv(wiphy); 1606 struct sta_info *sta; 1607 struct ieee80211_sub_if_data *vlansdata; 1608 enum cfg80211_station_type statype; 1609 int err; 1610 1611 mutex_lock(&local->sta_mtx); 1612 1613 sta = sta_info_get_bss(sdata, mac); 1614 if (!sta) { 1615 err = -ENOENT; 1616 goto out_err; 1617 } 1618 1619 switch (sdata->vif.type) { 1620 case NL80211_IFTYPE_MESH_POINT: 1621 if (sdata->u.mesh.user_mpm) 1622 statype = CFG80211_STA_MESH_PEER_USER; 1623 else 1624 statype = CFG80211_STA_MESH_PEER_KERNEL; 1625 break; 1626 case NL80211_IFTYPE_ADHOC: 1627 statype = CFG80211_STA_IBSS; 1628 break; 1629 case NL80211_IFTYPE_STATION: 1630 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1631 statype = CFG80211_STA_AP_STA; 1632 break; 1633 } 1634 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1635 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1636 else 1637 statype = CFG80211_STA_TDLS_PEER_SETUP; 1638 break; 1639 case NL80211_IFTYPE_AP: 1640 case NL80211_IFTYPE_AP_VLAN: 1641 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1642 statype = CFG80211_STA_AP_CLIENT; 1643 else 1644 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1645 break; 1646 default: 1647 err = -EOPNOTSUPP; 1648 goto out_err; 1649 } 1650 1651 err = cfg80211_check_station_change(wiphy, params, statype); 1652 if (err) 1653 goto out_err; 1654 1655 if (params->vlan && params->vlan != sta->sdata->dev) { 1656 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1657 1658 if (params->vlan->ieee80211_ptr->use_4addr) { 1659 if (vlansdata->u.vlan.sta) { 1660 err = -EBUSY; 1661 goto out_err; 1662 } 1663 1664 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1665 __ieee80211_check_fast_rx_iface(vlansdata); 1666 } 1667 1668 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1669 sta->sdata->u.vlan.sta) 1670 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1671 1672 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1673 ieee80211_vif_dec_num_mcast(sta->sdata); 1674 1675 sta->sdata = vlansdata; 1676 ieee80211_check_fast_xmit(sta); 1677 1678 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1679 ieee80211_vif_inc_num_mcast(sta->sdata); 1680 1681 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1682 } 1683 1684 err = sta_apply_parameters(local, sta, params); 1685 if (err) 1686 goto out_err; 1687 1688 mutex_unlock(&local->sta_mtx); 1689 1690 if ((sdata->vif.type == NL80211_IFTYPE_AP || 1691 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && 1692 sta->known_smps_mode != sta->sdata->bss->req_smps && 1693 test_sta_flag(sta, WLAN_STA_AUTHORIZED) && 1694 sta_info_tx_streams(sta) != 1) { 1695 ht_dbg(sta->sdata, 1696 "%pM just authorized and MIMO capable - update SMPS\n", 1697 sta->sta.addr); 1698 ieee80211_send_smps_action(sta->sdata, 1699 sta->sdata->bss->req_smps, 1700 sta->sta.addr, 1701 sta->sdata->vif.bss_conf.bssid); 1702 } 1703 1704 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1705 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1706 ieee80211_recalc_ps(local); 1707 ieee80211_recalc_ps_vif(sdata); 1708 } 1709 1710 return 0; 1711 out_err: 1712 mutex_unlock(&local->sta_mtx); 1713 return err; 1714 } 1715 1716 #ifdef CONFIG_MAC80211_MESH 1717 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1718 const u8 *dst, const u8 *next_hop) 1719 { 1720 struct ieee80211_sub_if_data *sdata; 1721 struct mesh_path *mpath; 1722 struct sta_info *sta; 1723 1724 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1725 1726 rcu_read_lock(); 1727 sta = sta_info_get(sdata, next_hop); 1728 if (!sta) { 1729 rcu_read_unlock(); 1730 return -ENOENT; 1731 } 1732 1733 mpath = mesh_path_add(sdata, dst); 1734 if (IS_ERR(mpath)) { 1735 rcu_read_unlock(); 1736 return PTR_ERR(mpath); 1737 } 1738 1739 mesh_path_fix_nexthop(mpath, sta); 1740 1741 rcu_read_unlock(); 1742 return 0; 1743 } 1744 1745 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1746 const u8 *dst) 1747 { 1748 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1749 1750 if (dst) 1751 return mesh_path_del(sdata, dst); 1752 1753 mesh_path_flush_by_iface(sdata); 1754 return 0; 1755 } 1756 1757 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1758 const u8 *dst, const u8 *next_hop) 1759 { 1760 struct ieee80211_sub_if_data *sdata; 1761 struct mesh_path *mpath; 1762 struct sta_info *sta; 1763 1764 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1765 1766 rcu_read_lock(); 1767 1768 sta = sta_info_get(sdata, next_hop); 1769 if (!sta) { 1770 rcu_read_unlock(); 1771 return -ENOENT; 1772 } 1773 1774 mpath = mesh_path_lookup(sdata, dst); 1775 if (!mpath) { 1776 rcu_read_unlock(); 1777 return -ENOENT; 1778 } 1779 1780 mesh_path_fix_nexthop(mpath, sta); 1781 1782 rcu_read_unlock(); 1783 return 0; 1784 } 1785 1786 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1787 struct mpath_info *pinfo) 1788 { 1789 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1790 1791 if (next_hop_sta) 1792 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1793 else 1794 eth_zero_addr(next_hop); 1795 1796 memset(pinfo, 0, sizeof(*pinfo)); 1797 1798 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1799 1800 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1801 MPATH_INFO_SN | 1802 MPATH_INFO_METRIC | 1803 MPATH_INFO_EXPTIME | 1804 MPATH_INFO_DISCOVERY_TIMEOUT | 1805 MPATH_INFO_DISCOVERY_RETRIES | 1806 MPATH_INFO_FLAGS | 1807 MPATH_INFO_HOP_COUNT | 1808 MPATH_INFO_PATH_CHANGE; 1809 1810 pinfo->frame_qlen = mpath->frame_queue.qlen; 1811 pinfo->sn = mpath->sn; 1812 pinfo->metric = mpath->metric; 1813 if (time_before(jiffies, mpath->exp_time)) 1814 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1815 pinfo->discovery_timeout = 1816 jiffies_to_msecs(mpath->discovery_timeout); 1817 pinfo->discovery_retries = mpath->discovery_retries; 1818 if (mpath->flags & MESH_PATH_ACTIVE) 1819 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1820 if (mpath->flags & MESH_PATH_RESOLVING) 1821 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1822 if (mpath->flags & MESH_PATH_SN_VALID) 1823 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1824 if (mpath->flags & MESH_PATH_FIXED) 1825 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1826 if (mpath->flags & MESH_PATH_RESOLVED) 1827 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1828 pinfo->hop_count = mpath->hop_count; 1829 pinfo->path_change_count = mpath->path_change_count; 1830 } 1831 1832 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1833 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1834 1835 { 1836 struct ieee80211_sub_if_data *sdata; 1837 struct mesh_path *mpath; 1838 1839 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1840 1841 rcu_read_lock(); 1842 mpath = mesh_path_lookup(sdata, dst); 1843 if (!mpath) { 1844 rcu_read_unlock(); 1845 return -ENOENT; 1846 } 1847 memcpy(dst, mpath->dst, ETH_ALEN); 1848 mpath_set_pinfo(mpath, next_hop, pinfo); 1849 rcu_read_unlock(); 1850 return 0; 1851 } 1852 1853 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1854 int idx, u8 *dst, u8 *next_hop, 1855 struct mpath_info *pinfo) 1856 { 1857 struct ieee80211_sub_if_data *sdata; 1858 struct mesh_path *mpath; 1859 1860 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1861 1862 rcu_read_lock(); 1863 mpath = mesh_path_lookup_by_idx(sdata, idx); 1864 if (!mpath) { 1865 rcu_read_unlock(); 1866 return -ENOENT; 1867 } 1868 memcpy(dst, mpath->dst, ETH_ALEN); 1869 mpath_set_pinfo(mpath, next_hop, pinfo); 1870 rcu_read_unlock(); 1871 return 0; 1872 } 1873 1874 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1875 struct mpath_info *pinfo) 1876 { 1877 memset(pinfo, 0, sizeof(*pinfo)); 1878 memcpy(mpp, mpath->mpp, ETH_ALEN); 1879 1880 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1881 } 1882 1883 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1884 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1885 1886 { 1887 struct ieee80211_sub_if_data *sdata; 1888 struct mesh_path *mpath; 1889 1890 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1891 1892 rcu_read_lock(); 1893 mpath = mpp_path_lookup(sdata, dst); 1894 if (!mpath) { 1895 rcu_read_unlock(); 1896 return -ENOENT; 1897 } 1898 memcpy(dst, mpath->dst, ETH_ALEN); 1899 mpp_set_pinfo(mpath, mpp, pinfo); 1900 rcu_read_unlock(); 1901 return 0; 1902 } 1903 1904 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1905 int idx, u8 *dst, u8 *mpp, 1906 struct mpath_info *pinfo) 1907 { 1908 struct ieee80211_sub_if_data *sdata; 1909 struct mesh_path *mpath; 1910 1911 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1912 1913 rcu_read_lock(); 1914 mpath = mpp_path_lookup_by_idx(sdata, idx); 1915 if (!mpath) { 1916 rcu_read_unlock(); 1917 return -ENOENT; 1918 } 1919 memcpy(dst, mpath->dst, ETH_ALEN); 1920 mpp_set_pinfo(mpath, mpp, pinfo); 1921 rcu_read_unlock(); 1922 return 0; 1923 } 1924 1925 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1926 struct net_device *dev, 1927 struct mesh_config *conf) 1928 { 1929 struct ieee80211_sub_if_data *sdata; 1930 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1931 1932 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1933 return 0; 1934 } 1935 1936 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1937 { 1938 return (mask >> (parm-1)) & 0x1; 1939 } 1940 1941 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1942 const struct mesh_setup *setup) 1943 { 1944 u8 *new_ie; 1945 const u8 *old_ie; 1946 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1947 struct ieee80211_sub_if_data, u.mesh); 1948 1949 /* allocate information elements */ 1950 new_ie = NULL; 1951 old_ie = ifmsh->ie; 1952 1953 if (setup->ie_len) { 1954 new_ie = kmemdup(setup->ie, setup->ie_len, 1955 GFP_KERNEL); 1956 if (!new_ie) 1957 return -ENOMEM; 1958 } 1959 ifmsh->ie_len = setup->ie_len; 1960 ifmsh->ie = new_ie; 1961 kfree(old_ie); 1962 1963 /* now copy the rest of the setup parameters */ 1964 ifmsh->mesh_id_len = setup->mesh_id_len; 1965 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1966 ifmsh->mesh_sp_id = setup->sync_method; 1967 ifmsh->mesh_pp_id = setup->path_sel_proto; 1968 ifmsh->mesh_pm_id = setup->path_metric; 1969 ifmsh->user_mpm = setup->user_mpm; 1970 ifmsh->mesh_auth_id = setup->auth_id; 1971 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1972 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 1973 if (setup->is_authenticated) 1974 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1975 if (setup->is_secure) 1976 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1977 1978 /* mcast rate setting in Mesh Node */ 1979 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1980 sizeof(setup->mcast_rate)); 1981 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1982 1983 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1984 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1985 1986 return 0; 1987 } 1988 1989 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1990 struct net_device *dev, u32 mask, 1991 const struct mesh_config *nconf) 1992 { 1993 struct mesh_config *conf; 1994 struct ieee80211_sub_if_data *sdata; 1995 struct ieee80211_if_mesh *ifmsh; 1996 1997 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1998 ifmsh = &sdata->u.mesh; 1999 2000 /* Set the config options which we are interested in setting */ 2001 conf = &(sdata->u.mesh.mshcfg); 2002 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2003 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2004 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2005 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2006 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2007 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2008 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2009 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2010 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2011 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2012 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2013 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2014 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2015 conf->element_ttl = nconf->element_ttl; 2016 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2017 if (ifmsh->user_mpm) 2018 return -EBUSY; 2019 conf->auto_open_plinks = nconf->auto_open_plinks; 2020 } 2021 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2022 conf->dot11MeshNbrOffsetMaxNeighbor = 2023 nconf->dot11MeshNbrOffsetMaxNeighbor; 2024 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2025 conf->dot11MeshHWMPmaxPREQretries = 2026 nconf->dot11MeshHWMPmaxPREQretries; 2027 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2028 conf->path_refresh_time = nconf->path_refresh_time; 2029 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2030 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2031 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2032 conf->dot11MeshHWMPactivePathTimeout = 2033 nconf->dot11MeshHWMPactivePathTimeout; 2034 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2035 conf->dot11MeshHWMPpreqMinInterval = 2036 nconf->dot11MeshHWMPpreqMinInterval; 2037 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2038 conf->dot11MeshHWMPperrMinInterval = 2039 nconf->dot11MeshHWMPperrMinInterval; 2040 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2041 mask)) 2042 conf->dot11MeshHWMPnetDiameterTraversalTime = 2043 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2044 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2045 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2046 ieee80211_mesh_root_setup(ifmsh); 2047 } 2048 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2049 /* our current gate announcement implementation rides on root 2050 * announcements, so require this ifmsh to also be a root node 2051 * */ 2052 if (nconf->dot11MeshGateAnnouncementProtocol && 2053 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2054 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2055 ieee80211_mesh_root_setup(ifmsh); 2056 } 2057 conf->dot11MeshGateAnnouncementProtocol = 2058 nconf->dot11MeshGateAnnouncementProtocol; 2059 } 2060 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2061 conf->dot11MeshHWMPRannInterval = 2062 nconf->dot11MeshHWMPRannInterval; 2063 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2064 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2065 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2066 /* our RSSI threshold implementation is supported only for 2067 * devices that report signal in dBm. 2068 */ 2069 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2070 return -ENOTSUPP; 2071 conf->rssi_threshold = nconf->rssi_threshold; 2072 } 2073 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2074 conf->ht_opmode = nconf->ht_opmode; 2075 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2076 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2077 } 2078 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2079 conf->dot11MeshHWMPactivePathToRootTimeout = 2080 nconf->dot11MeshHWMPactivePathToRootTimeout; 2081 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2082 conf->dot11MeshHWMProotInterval = 2083 nconf->dot11MeshHWMProotInterval; 2084 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2085 conf->dot11MeshHWMPconfirmationInterval = 2086 nconf->dot11MeshHWMPconfirmationInterval; 2087 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2088 conf->power_mode = nconf->power_mode; 2089 ieee80211_mps_local_status_update(sdata); 2090 } 2091 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2092 conf->dot11MeshAwakeWindowDuration = 2093 nconf->dot11MeshAwakeWindowDuration; 2094 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2095 conf->plink_timeout = nconf->plink_timeout; 2096 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2097 conf->dot11MeshConnectedToMeshGate = 2098 nconf->dot11MeshConnectedToMeshGate; 2099 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2100 return 0; 2101 } 2102 2103 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2104 const struct mesh_config *conf, 2105 const struct mesh_setup *setup) 2106 { 2107 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2108 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2109 int err; 2110 2111 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2112 err = copy_mesh_setup(ifmsh, setup); 2113 if (err) 2114 return err; 2115 2116 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2117 2118 /* can mesh use other SMPS modes? */ 2119 sdata->smps_mode = IEEE80211_SMPS_OFF; 2120 sdata->needed_rx_chains = sdata->local->rx_chains; 2121 2122 mutex_lock(&sdata->local->mtx); 2123 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2124 IEEE80211_CHANCTX_SHARED); 2125 mutex_unlock(&sdata->local->mtx); 2126 if (err) 2127 return err; 2128 2129 return ieee80211_start_mesh(sdata); 2130 } 2131 2132 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2133 { 2134 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2135 2136 ieee80211_stop_mesh(sdata); 2137 mutex_lock(&sdata->local->mtx); 2138 ieee80211_vif_release_channel(sdata); 2139 mutex_unlock(&sdata->local->mtx); 2140 2141 return 0; 2142 } 2143 #endif 2144 2145 static int ieee80211_change_bss(struct wiphy *wiphy, 2146 struct net_device *dev, 2147 struct bss_parameters *params) 2148 { 2149 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2150 struct ieee80211_supported_band *sband; 2151 u32 changed = 0; 2152 2153 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2154 return -ENOENT; 2155 2156 sband = ieee80211_get_sband(sdata); 2157 if (!sband) 2158 return -EINVAL; 2159 2160 if (params->use_cts_prot >= 0) { 2161 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2162 changed |= BSS_CHANGED_ERP_CTS_PROT; 2163 } 2164 if (params->use_short_preamble >= 0) { 2165 sdata->vif.bss_conf.use_short_preamble = 2166 params->use_short_preamble; 2167 changed |= BSS_CHANGED_ERP_PREAMBLE; 2168 } 2169 2170 if (!sdata->vif.bss_conf.use_short_slot && 2171 sband->band == NL80211_BAND_5GHZ) { 2172 sdata->vif.bss_conf.use_short_slot = true; 2173 changed |= BSS_CHANGED_ERP_SLOT; 2174 } 2175 2176 if (params->use_short_slot_time >= 0) { 2177 sdata->vif.bss_conf.use_short_slot = 2178 params->use_short_slot_time; 2179 changed |= BSS_CHANGED_ERP_SLOT; 2180 } 2181 2182 if (params->basic_rates) { 2183 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2184 wiphy->bands[sband->band], 2185 params->basic_rates, 2186 params->basic_rates_len, 2187 &sdata->vif.bss_conf.basic_rates); 2188 changed |= BSS_CHANGED_BASIC_RATES; 2189 ieee80211_check_rate_mask(sdata); 2190 } 2191 2192 if (params->ap_isolate >= 0) { 2193 if (params->ap_isolate) 2194 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2195 else 2196 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2197 ieee80211_check_fast_rx_iface(sdata); 2198 } 2199 2200 if (params->ht_opmode >= 0) { 2201 sdata->vif.bss_conf.ht_operation_mode = 2202 (u16) params->ht_opmode; 2203 changed |= BSS_CHANGED_HT; 2204 } 2205 2206 if (params->p2p_ctwindow >= 0) { 2207 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2208 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2209 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2210 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2211 changed |= BSS_CHANGED_P2P_PS; 2212 } 2213 2214 if (params->p2p_opp_ps > 0) { 2215 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2216 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2217 changed |= BSS_CHANGED_P2P_PS; 2218 } else if (params->p2p_opp_ps == 0) { 2219 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2220 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2221 changed |= BSS_CHANGED_P2P_PS; 2222 } 2223 2224 ieee80211_bss_info_change_notify(sdata, changed); 2225 2226 return 0; 2227 } 2228 2229 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2230 struct net_device *dev, 2231 struct ieee80211_txq_params *params) 2232 { 2233 struct ieee80211_local *local = wiphy_priv(wiphy); 2234 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2235 struct ieee80211_tx_queue_params p; 2236 2237 if (!local->ops->conf_tx) 2238 return -EOPNOTSUPP; 2239 2240 if (local->hw.queues < IEEE80211_NUM_ACS) 2241 return -EOPNOTSUPP; 2242 2243 memset(&p, 0, sizeof(p)); 2244 p.aifs = params->aifs; 2245 p.cw_max = params->cwmax; 2246 p.cw_min = params->cwmin; 2247 p.txop = params->txop; 2248 2249 /* 2250 * Setting tx queue params disables u-apsd because it's only 2251 * called in master mode. 2252 */ 2253 p.uapsd = false; 2254 2255 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2256 2257 sdata->tx_conf[params->ac] = p; 2258 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2259 wiphy_debug(local->hw.wiphy, 2260 "failed to set TX queue parameters for AC %d\n", 2261 params->ac); 2262 return -EINVAL; 2263 } 2264 2265 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2266 2267 return 0; 2268 } 2269 2270 #ifdef CONFIG_PM 2271 static int ieee80211_suspend(struct wiphy *wiphy, 2272 struct cfg80211_wowlan *wowlan) 2273 { 2274 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2275 } 2276 2277 static int ieee80211_resume(struct wiphy *wiphy) 2278 { 2279 return __ieee80211_resume(wiphy_priv(wiphy)); 2280 } 2281 #else 2282 #define ieee80211_suspend NULL 2283 #define ieee80211_resume NULL 2284 #endif 2285 2286 static int ieee80211_scan(struct wiphy *wiphy, 2287 struct cfg80211_scan_request *req) 2288 { 2289 struct ieee80211_sub_if_data *sdata; 2290 2291 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2292 2293 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2294 case NL80211_IFTYPE_STATION: 2295 case NL80211_IFTYPE_ADHOC: 2296 case NL80211_IFTYPE_MESH_POINT: 2297 case NL80211_IFTYPE_P2P_CLIENT: 2298 case NL80211_IFTYPE_P2P_DEVICE: 2299 break; 2300 case NL80211_IFTYPE_P2P_GO: 2301 if (sdata->local->ops->hw_scan) 2302 break; 2303 /* 2304 * FIXME: implement NoA while scanning in software, 2305 * for now fall through to allow scanning only when 2306 * beaconing hasn't been configured yet 2307 */ 2308 /* fall through */ 2309 case NL80211_IFTYPE_AP: 2310 /* 2311 * If the scan has been forced (and the driver supports 2312 * forcing), don't care about being beaconing already. 2313 * This will create problems to the attached stations (e.g. all 2314 * the frames sent while scanning on other channel will be 2315 * lost) 2316 */ 2317 if (sdata->u.ap.beacon && 2318 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2319 !(req->flags & NL80211_SCAN_FLAG_AP))) 2320 return -EOPNOTSUPP; 2321 break; 2322 case NL80211_IFTYPE_NAN: 2323 default: 2324 return -EOPNOTSUPP; 2325 } 2326 2327 return ieee80211_request_scan(sdata, req); 2328 } 2329 2330 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2331 { 2332 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2333 } 2334 2335 static int 2336 ieee80211_sched_scan_start(struct wiphy *wiphy, 2337 struct net_device *dev, 2338 struct cfg80211_sched_scan_request *req) 2339 { 2340 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2341 2342 if (!sdata->local->ops->sched_scan_start) 2343 return -EOPNOTSUPP; 2344 2345 return ieee80211_request_sched_scan_start(sdata, req); 2346 } 2347 2348 static int 2349 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2350 u64 reqid) 2351 { 2352 struct ieee80211_local *local = wiphy_priv(wiphy); 2353 2354 if (!local->ops->sched_scan_stop) 2355 return -EOPNOTSUPP; 2356 2357 return ieee80211_request_sched_scan_stop(local); 2358 } 2359 2360 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2361 struct cfg80211_auth_request *req) 2362 { 2363 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2364 } 2365 2366 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2367 struct cfg80211_assoc_request *req) 2368 { 2369 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2370 } 2371 2372 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2373 struct cfg80211_deauth_request *req) 2374 { 2375 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2376 } 2377 2378 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2379 struct cfg80211_disassoc_request *req) 2380 { 2381 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2382 } 2383 2384 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2385 struct cfg80211_ibss_params *params) 2386 { 2387 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2388 } 2389 2390 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2391 { 2392 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2393 } 2394 2395 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2396 struct ocb_setup *setup) 2397 { 2398 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2399 } 2400 2401 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2402 { 2403 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2404 } 2405 2406 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2407 int rate[NUM_NL80211_BANDS]) 2408 { 2409 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2410 2411 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2412 sizeof(int) * NUM_NL80211_BANDS); 2413 2414 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2415 2416 return 0; 2417 } 2418 2419 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2420 { 2421 struct ieee80211_local *local = wiphy_priv(wiphy); 2422 int err; 2423 2424 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2425 ieee80211_check_fast_xmit_all(local); 2426 2427 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2428 2429 if (err) { 2430 ieee80211_check_fast_xmit_all(local); 2431 return err; 2432 } 2433 } 2434 2435 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2436 (changed & WIPHY_PARAM_DYN_ACK)) { 2437 s16 coverage_class; 2438 2439 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2440 wiphy->coverage_class : -1; 2441 err = drv_set_coverage_class(local, coverage_class); 2442 2443 if (err) 2444 return err; 2445 } 2446 2447 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2448 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2449 2450 if (err) 2451 return err; 2452 } 2453 2454 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2455 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2456 return -EINVAL; 2457 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2458 } 2459 if (changed & WIPHY_PARAM_RETRY_LONG) { 2460 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2461 return -EINVAL; 2462 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2463 } 2464 if (changed & 2465 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2466 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2467 2468 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2469 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2470 WIPHY_PARAM_TXQ_QUANTUM)) 2471 ieee80211_txq_set_params(local); 2472 2473 return 0; 2474 } 2475 2476 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2477 struct wireless_dev *wdev, 2478 enum nl80211_tx_power_setting type, int mbm) 2479 { 2480 struct ieee80211_local *local = wiphy_priv(wiphy); 2481 struct ieee80211_sub_if_data *sdata; 2482 enum nl80211_tx_power_setting txp_type = type; 2483 bool update_txp_type = false; 2484 bool has_monitor = false; 2485 2486 if (wdev) { 2487 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2488 2489 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2490 sdata = rtnl_dereference(local->monitor_sdata); 2491 if (!sdata) 2492 return -EOPNOTSUPP; 2493 } 2494 2495 switch (type) { 2496 case NL80211_TX_POWER_AUTOMATIC: 2497 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2498 txp_type = NL80211_TX_POWER_LIMITED; 2499 break; 2500 case NL80211_TX_POWER_LIMITED: 2501 case NL80211_TX_POWER_FIXED: 2502 if (mbm < 0 || (mbm % 100)) 2503 return -EOPNOTSUPP; 2504 sdata->user_power_level = MBM_TO_DBM(mbm); 2505 break; 2506 } 2507 2508 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2509 update_txp_type = true; 2510 sdata->vif.bss_conf.txpower_type = txp_type; 2511 } 2512 2513 ieee80211_recalc_txpower(sdata, update_txp_type); 2514 2515 return 0; 2516 } 2517 2518 switch (type) { 2519 case NL80211_TX_POWER_AUTOMATIC: 2520 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2521 txp_type = NL80211_TX_POWER_LIMITED; 2522 break; 2523 case NL80211_TX_POWER_LIMITED: 2524 case NL80211_TX_POWER_FIXED: 2525 if (mbm < 0 || (mbm % 100)) 2526 return -EOPNOTSUPP; 2527 local->user_power_level = MBM_TO_DBM(mbm); 2528 break; 2529 } 2530 2531 mutex_lock(&local->iflist_mtx); 2532 list_for_each_entry(sdata, &local->interfaces, list) { 2533 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2534 has_monitor = true; 2535 continue; 2536 } 2537 sdata->user_power_level = local->user_power_level; 2538 if (txp_type != sdata->vif.bss_conf.txpower_type) 2539 update_txp_type = true; 2540 sdata->vif.bss_conf.txpower_type = txp_type; 2541 } 2542 list_for_each_entry(sdata, &local->interfaces, list) { 2543 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2544 continue; 2545 ieee80211_recalc_txpower(sdata, update_txp_type); 2546 } 2547 mutex_unlock(&local->iflist_mtx); 2548 2549 if (has_monitor) { 2550 sdata = rtnl_dereference(local->monitor_sdata); 2551 if (sdata) { 2552 sdata->user_power_level = local->user_power_level; 2553 if (txp_type != sdata->vif.bss_conf.txpower_type) 2554 update_txp_type = true; 2555 sdata->vif.bss_conf.txpower_type = txp_type; 2556 2557 ieee80211_recalc_txpower(sdata, update_txp_type); 2558 } 2559 } 2560 2561 return 0; 2562 } 2563 2564 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2565 struct wireless_dev *wdev, 2566 int *dbm) 2567 { 2568 struct ieee80211_local *local = wiphy_priv(wiphy); 2569 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2570 2571 if (local->ops->get_txpower) 2572 return drv_get_txpower(local, sdata, dbm); 2573 2574 if (!local->use_chanctx) 2575 *dbm = local->hw.conf.power_level; 2576 else 2577 *dbm = sdata->vif.bss_conf.txpower; 2578 2579 return 0; 2580 } 2581 2582 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2583 const u8 *addr) 2584 { 2585 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2586 2587 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2588 2589 return 0; 2590 } 2591 2592 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2593 { 2594 struct ieee80211_local *local = wiphy_priv(wiphy); 2595 2596 drv_rfkill_poll(local); 2597 } 2598 2599 #ifdef CONFIG_NL80211_TESTMODE 2600 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2601 struct wireless_dev *wdev, 2602 void *data, int len) 2603 { 2604 struct ieee80211_local *local = wiphy_priv(wiphy); 2605 struct ieee80211_vif *vif = NULL; 2606 2607 if (!local->ops->testmode_cmd) 2608 return -EOPNOTSUPP; 2609 2610 if (wdev) { 2611 struct ieee80211_sub_if_data *sdata; 2612 2613 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2614 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2615 vif = &sdata->vif; 2616 } 2617 2618 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2619 } 2620 2621 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2622 struct sk_buff *skb, 2623 struct netlink_callback *cb, 2624 void *data, int len) 2625 { 2626 struct ieee80211_local *local = wiphy_priv(wiphy); 2627 2628 if (!local->ops->testmode_dump) 2629 return -EOPNOTSUPP; 2630 2631 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2632 } 2633 #endif 2634 2635 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, 2636 enum ieee80211_smps_mode smps_mode) 2637 { 2638 struct sta_info *sta; 2639 enum ieee80211_smps_mode old_req; 2640 2641 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) 2642 return -EINVAL; 2643 2644 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2645 return 0; 2646 2647 old_req = sdata->u.ap.req_smps; 2648 sdata->u.ap.req_smps = smps_mode; 2649 2650 /* AUTOMATIC doesn't mean much for AP - don't allow it */ 2651 if (old_req == smps_mode || 2652 smps_mode == IEEE80211_SMPS_AUTOMATIC) 2653 return 0; 2654 2655 ht_dbg(sdata, 2656 "SMPS %d requested in AP mode, sending Action frame to %d stations\n", 2657 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); 2658 2659 mutex_lock(&sdata->local->sta_mtx); 2660 list_for_each_entry(sta, &sdata->local->sta_list, list) { 2661 /* 2662 * Only stations associated to our AP and 2663 * associated VLANs 2664 */ 2665 if (sta->sdata->bss != &sdata->u.ap) 2666 continue; 2667 2668 /* This station doesn't support MIMO - skip it */ 2669 if (sta_info_tx_streams(sta) == 1) 2670 continue; 2671 2672 /* 2673 * Don't wake up a STA just to send the action frame 2674 * unless we are getting more restrictive. 2675 */ 2676 if (test_sta_flag(sta, WLAN_STA_PS_STA) && 2677 !ieee80211_smps_is_restrictive(sta->known_smps_mode, 2678 smps_mode)) { 2679 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n", 2680 sta->sta.addr); 2681 continue; 2682 } 2683 2684 /* 2685 * If the STA is not authorized, wait until it gets 2686 * authorized and the action frame will be sent then. 2687 */ 2688 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2689 continue; 2690 2691 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); 2692 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr, 2693 sdata->vif.bss_conf.bssid); 2694 } 2695 mutex_unlock(&sdata->local->sta_mtx); 2696 2697 sdata->smps_mode = smps_mode; 2698 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2699 2700 return 0; 2701 } 2702 2703 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2704 enum ieee80211_smps_mode smps_mode) 2705 { 2706 const u8 *ap; 2707 enum ieee80211_smps_mode old_req; 2708 int err; 2709 struct sta_info *sta; 2710 bool tdls_peer_found = false; 2711 2712 lockdep_assert_held(&sdata->wdev.mtx); 2713 2714 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2715 return -EINVAL; 2716 2717 old_req = sdata->u.mgd.req_smps; 2718 sdata->u.mgd.req_smps = smps_mode; 2719 2720 if (old_req == smps_mode && 2721 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2722 return 0; 2723 2724 /* 2725 * If not associated, or current association is not an HT 2726 * association, there's no need to do anything, just store 2727 * the new value until we associate. 2728 */ 2729 if (!sdata->u.mgd.associated || 2730 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2731 return 0; 2732 2733 ap = sdata->u.mgd.associated->bssid; 2734 2735 rcu_read_lock(); 2736 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2737 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2738 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2739 continue; 2740 2741 tdls_peer_found = true; 2742 break; 2743 } 2744 rcu_read_unlock(); 2745 2746 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2747 if (tdls_peer_found || !sdata->u.mgd.powersave) 2748 smps_mode = IEEE80211_SMPS_OFF; 2749 else 2750 smps_mode = IEEE80211_SMPS_DYNAMIC; 2751 } 2752 2753 /* send SM PS frame to AP */ 2754 err = ieee80211_send_smps_action(sdata, smps_mode, 2755 ap, ap); 2756 if (err) 2757 sdata->u.mgd.req_smps = old_req; 2758 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2759 ieee80211_teardown_tdls_peers(sdata); 2760 2761 return err; 2762 } 2763 2764 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2765 bool enabled, int timeout) 2766 { 2767 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2768 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2769 2770 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2771 return -EOPNOTSUPP; 2772 2773 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2774 return -EOPNOTSUPP; 2775 2776 if (enabled == sdata->u.mgd.powersave && 2777 timeout == local->dynamic_ps_forced_timeout) 2778 return 0; 2779 2780 sdata->u.mgd.powersave = enabled; 2781 local->dynamic_ps_forced_timeout = timeout; 2782 2783 /* no change, but if automatic follow powersave */ 2784 sdata_lock(sdata); 2785 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2786 sdata_unlock(sdata); 2787 2788 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2789 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2790 2791 ieee80211_recalc_ps(local); 2792 ieee80211_recalc_ps_vif(sdata); 2793 ieee80211_check_fast_rx_iface(sdata); 2794 2795 return 0; 2796 } 2797 2798 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2799 struct net_device *dev, 2800 s32 rssi_thold, u32 rssi_hyst) 2801 { 2802 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2803 struct ieee80211_vif *vif = &sdata->vif; 2804 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2805 2806 if (rssi_thold == bss_conf->cqm_rssi_thold && 2807 rssi_hyst == bss_conf->cqm_rssi_hyst) 2808 return 0; 2809 2810 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2811 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2812 return -EOPNOTSUPP; 2813 2814 bss_conf->cqm_rssi_thold = rssi_thold; 2815 bss_conf->cqm_rssi_hyst = rssi_hyst; 2816 bss_conf->cqm_rssi_low = 0; 2817 bss_conf->cqm_rssi_high = 0; 2818 sdata->u.mgd.last_cqm_event_signal = 0; 2819 2820 /* tell the driver upon association, unless already associated */ 2821 if (sdata->u.mgd.associated && 2822 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2823 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2824 2825 return 0; 2826 } 2827 2828 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2829 struct net_device *dev, 2830 s32 rssi_low, s32 rssi_high) 2831 { 2832 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2833 struct ieee80211_vif *vif = &sdata->vif; 2834 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2835 2836 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2837 return -EOPNOTSUPP; 2838 2839 bss_conf->cqm_rssi_low = rssi_low; 2840 bss_conf->cqm_rssi_high = rssi_high; 2841 bss_conf->cqm_rssi_thold = 0; 2842 bss_conf->cqm_rssi_hyst = 0; 2843 sdata->u.mgd.last_cqm_event_signal = 0; 2844 2845 /* tell the driver upon association, unless already associated */ 2846 if (sdata->u.mgd.associated && 2847 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2848 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2849 2850 return 0; 2851 } 2852 2853 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2854 struct net_device *dev, 2855 const u8 *addr, 2856 const struct cfg80211_bitrate_mask *mask) 2857 { 2858 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2859 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2860 int i, ret; 2861 2862 if (!ieee80211_sdata_running(sdata)) 2863 return -ENETDOWN; 2864 2865 /* 2866 * If active validate the setting and reject it if it doesn't leave 2867 * at least one basic rate usable, since we really have to be able 2868 * to send something, and if we're an AP we have to be able to do 2869 * so at a basic rate so that all clients can receive it. 2870 */ 2871 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2872 sdata->vif.bss_conf.chandef.chan) { 2873 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2874 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2875 2876 if (!(mask->control[band].legacy & basic_rates)) 2877 return -EINVAL; 2878 } 2879 2880 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2881 ret = drv_set_bitrate_mask(local, sdata, mask); 2882 if (ret) 2883 return ret; 2884 } 2885 2886 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2887 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2888 int j; 2889 2890 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2891 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2892 sizeof(mask->control[i].ht_mcs)); 2893 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2894 mask->control[i].vht_mcs, 2895 sizeof(mask->control[i].vht_mcs)); 2896 2897 sdata->rc_has_mcs_mask[i] = false; 2898 sdata->rc_has_vht_mcs_mask[i] = false; 2899 if (!sband) 2900 continue; 2901 2902 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2903 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2904 sdata->rc_has_mcs_mask[i] = true; 2905 break; 2906 } 2907 } 2908 2909 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2910 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2911 sdata->rc_has_vht_mcs_mask[i] = true; 2912 break; 2913 } 2914 } 2915 } 2916 2917 return 0; 2918 } 2919 2920 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2921 struct net_device *dev, 2922 struct cfg80211_chan_def *chandef, 2923 u32 cac_time_ms) 2924 { 2925 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2926 struct ieee80211_local *local = sdata->local; 2927 int err; 2928 2929 mutex_lock(&local->mtx); 2930 if (!list_empty(&local->roc_list) || local->scanning) { 2931 err = -EBUSY; 2932 goto out_unlock; 2933 } 2934 2935 /* whatever, but channel contexts should not complain about that one */ 2936 sdata->smps_mode = IEEE80211_SMPS_OFF; 2937 sdata->needed_rx_chains = local->rx_chains; 2938 2939 err = ieee80211_vif_use_channel(sdata, chandef, 2940 IEEE80211_CHANCTX_SHARED); 2941 if (err) 2942 goto out_unlock; 2943 2944 ieee80211_queue_delayed_work(&sdata->local->hw, 2945 &sdata->dfs_cac_timer_work, 2946 msecs_to_jiffies(cac_time_ms)); 2947 2948 out_unlock: 2949 mutex_unlock(&local->mtx); 2950 return err; 2951 } 2952 2953 static struct cfg80211_beacon_data * 2954 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2955 { 2956 struct cfg80211_beacon_data *new_beacon; 2957 u8 *pos; 2958 int len; 2959 2960 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2961 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2962 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 2963 2964 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2965 if (!new_beacon) 2966 return NULL; 2967 2968 pos = (u8 *)(new_beacon + 1); 2969 if (beacon->head_len) { 2970 new_beacon->head_len = beacon->head_len; 2971 new_beacon->head = pos; 2972 memcpy(pos, beacon->head, beacon->head_len); 2973 pos += beacon->head_len; 2974 } 2975 if (beacon->tail_len) { 2976 new_beacon->tail_len = beacon->tail_len; 2977 new_beacon->tail = pos; 2978 memcpy(pos, beacon->tail, beacon->tail_len); 2979 pos += beacon->tail_len; 2980 } 2981 if (beacon->beacon_ies_len) { 2982 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2983 new_beacon->beacon_ies = pos; 2984 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2985 pos += beacon->beacon_ies_len; 2986 } 2987 if (beacon->proberesp_ies_len) { 2988 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2989 new_beacon->proberesp_ies = pos; 2990 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 2991 pos += beacon->proberesp_ies_len; 2992 } 2993 if (beacon->assocresp_ies_len) { 2994 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 2995 new_beacon->assocresp_ies = pos; 2996 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 2997 pos += beacon->assocresp_ies_len; 2998 } 2999 if (beacon->probe_resp_len) { 3000 new_beacon->probe_resp_len = beacon->probe_resp_len; 3001 new_beacon->probe_resp = pos; 3002 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3003 pos += beacon->probe_resp_len; 3004 } 3005 3006 /* might copy -1, meaning no changes requested */ 3007 new_beacon->ftm_responder = beacon->ftm_responder; 3008 if (beacon->lci) { 3009 new_beacon->lci_len = beacon->lci_len; 3010 new_beacon->lci = pos; 3011 memcpy(pos, beacon->lci, beacon->lci_len); 3012 pos += beacon->lci_len; 3013 } 3014 if (beacon->civicloc) { 3015 new_beacon->civicloc_len = beacon->civicloc_len; 3016 new_beacon->civicloc = pos; 3017 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3018 pos += beacon->civicloc_len; 3019 } 3020 3021 return new_beacon; 3022 } 3023 3024 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3025 { 3026 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3027 3028 ieee80211_queue_work(&sdata->local->hw, 3029 &sdata->csa_finalize_work); 3030 } 3031 EXPORT_SYMBOL(ieee80211_csa_finish); 3032 3033 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3034 u32 *changed) 3035 { 3036 int err; 3037 3038 switch (sdata->vif.type) { 3039 case NL80211_IFTYPE_AP: 3040 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 3041 NULL); 3042 kfree(sdata->u.ap.next_beacon); 3043 sdata->u.ap.next_beacon = NULL; 3044 3045 if (err < 0) 3046 return err; 3047 *changed |= err; 3048 break; 3049 case NL80211_IFTYPE_ADHOC: 3050 err = ieee80211_ibss_finish_csa(sdata); 3051 if (err < 0) 3052 return err; 3053 *changed |= err; 3054 break; 3055 #ifdef CONFIG_MAC80211_MESH 3056 case NL80211_IFTYPE_MESH_POINT: 3057 err = ieee80211_mesh_finish_csa(sdata); 3058 if (err < 0) 3059 return err; 3060 *changed |= err; 3061 break; 3062 #endif 3063 default: 3064 WARN_ON(1); 3065 return -EINVAL; 3066 } 3067 3068 return 0; 3069 } 3070 3071 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3072 { 3073 struct ieee80211_local *local = sdata->local; 3074 u32 changed = 0; 3075 int err; 3076 3077 sdata_assert_lock(sdata); 3078 lockdep_assert_held(&local->mtx); 3079 lockdep_assert_held(&local->chanctx_mtx); 3080 3081 /* 3082 * using reservation isn't immediate as it may be deferred until later 3083 * with multi-vif. once reservation is complete it will re-schedule the 3084 * work with no reserved_chanctx so verify chandef to check if it 3085 * completed successfully 3086 */ 3087 3088 if (sdata->reserved_chanctx) { 3089 /* 3090 * with multi-vif csa driver may call ieee80211_csa_finish() 3091 * many times while waiting for other interfaces to use their 3092 * reservations 3093 */ 3094 if (sdata->reserved_ready) 3095 return 0; 3096 3097 return ieee80211_vif_use_reserved_context(sdata); 3098 } 3099 3100 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3101 &sdata->csa_chandef)) 3102 return -EINVAL; 3103 3104 sdata->vif.csa_active = false; 3105 3106 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3107 if (err) 3108 return err; 3109 3110 ieee80211_bss_info_change_notify(sdata, changed); 3111 3112 if (sdata->csa_block_tx) { 3113 ieee80211_wake_vif_queues(local, sdata, 3114 IEEE80211_QUEUE_STOP_REASON_CSA); 3115 sdata->csa_block_tx = false; 3116 } 3117 3118 err = drv_post_channel_switch(sdata); 3119 if (err) 3120 return err; 3121 3122 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3123 3124 return 0; 3125 } 3126 3127 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3128 { 3129 if (__ieee80211_csa_finalize(sdata)) { 3130 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3131 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3132 GFP_KERNEL); 3133 } 3134 } 3135 3136 void ieee80211_csa_finalize_work(struct work_struct *work) 3137 { 3138 struct ieee80211_sub_if_data *sdata = 3139 container_of(work, struct ieee80211_sub_if_data, 3140 csa_finalize_work); 3141 struct ieee80211_local *local = sdata->local; 3142 3143 sdata_lock(sdata); 3144 mutex_lock(&local->mtx); 3145 mutex_lock(&local->chanctx_mtx); 3146 3147 /* AP might have been stopped while waiting for the lock. */ 3148 if (!sdata->vif.csa_active) 3149 goto unlock; 3150 3151 if (!ieee80211_sdata_running(sdata)) 3152 goto unlock; 3153 3154 ieee80211_csa_finalize(sdata); 3155 3156 unlock: 3157 mutex_unlock(&local->chanctx_mtx); 3158 mutex_unlock(&local->mtx); 3159 sdata_unlock(sdata); 3160 } 3161 3162 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3163 struct cfg80211_csa_settings *params, 3164 u32 *changed) 3165 { 3166 struct ieee80211_csa_settings csa = {}; 3167 int err; 3168 3169 switch (sdata->vif.type) { 3170 case NL80211_IFTYPE_AP: 3171 sdata->u.ap.next_beacon = 3172 cfg80211_beacon_dup(¶ms->beacon_after); 3173 if (!sdata->u.ap.next_beacon) 3174 return -ENOMEM; 3175 3176 /* 3177 * With a count of 0, we don't have to wait for any 3178 * TBTT before switching, so complete the CSA 3179 * immediately. In theory, with a count == 1 we 3180 * should delay the switch until just before the next 3181 * TBTT, but that would complicate things so we switch 3182 * immediately too. If we would delay the switch 3183 * until the next TBTT, we would have to set the probe 3184 * response here. 3185 * 3186 * TODO: A channel switch with count <= 1 without 3187 * sending a CSA action frame is kind of useless, 3188 * because the clients won't know we're changing 3189 * channels. The action frame must be implemented 3190 * either here or in the userspace. 3191 */ 3192 if (params->count <= 1) 3193 break; 3194 3195 if ((params->n_counter_offsets_beacon > 3196 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3197 (params->n_counter_offsets_presp > 3198 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3199 return -EINVAL; 3200 3201 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3202 csa.counter_offsets_presp = params->counter_offsets_presp; 3203 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3204 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3205 csa.count = params->count; 3206 3207 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3208 if (err < 0) { 3209 kfree(sdata->u.ap.next_beacon); 3210 return err; 3211 } 3212 *changed |= err; 3213 3214 break; 3215 case NL80211_IFTYPE_ADHOC: 3216 if (!sdata->vif.bss_conf.ibss_joined) 3217 return -EINVAL; 3218 3219 if (params->chandef.width != sdata->u.ibss.chandef.width) 3220 return -EINVAL; 3221 3222 switch (params->chandef.width) { 3223 case NL80211_CHAN_WIDTH_40: 3224 if (cfg80211_get_chandef_type(¶ms->chandef) != 3225 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3226 return -EINVAL; 3227 case NL80211_CHAN_WIDTH_5: 3228 case NL80211_CHAN_WIDTH_10: 3229 case NL80211_CHAN_WIDTH_20_NOHT: 3230 case NL80211_CHAN_WIDTH_20: 3231 break; 3232 default: 3233 return -EINVAL; 3234 } 3235 3236 /* changes into another band are not supported */ 3237 if (sdata->u.ibss.chandef.chan->band != 3238 params->chandef.chan->band) 3239 return -EINVAL; 3240 3241 /* see comments in the NL80211_IFTYPE_AP block */ 3242 if (params->count > 1) { 3243 err = ieee80211_ibss_csa_beacon(sdata, params); 3244 if (err < 0) 3245 return err; 3246 *changed |= err; 3247 } 3248 3249 ieee80211_send_action_csa(sdata, params); 3250 3251 break; 3252 #ifdef CONFIG_MAC80211_MESH 3253 case NL80211_IFTYPE_MESH_POINT: { 3254 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3255 3256 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3257 return -EINVAL; 3258 3259 /* changes into another band are not supported */ 3260 if (sdata->vif.bss_conf.chandef.chan->band != 3261 params->chandef.chan->band) 3262 return -EINVAL; 3263 3264 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3265 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3266 if (!ifmsh->pre_value) 3267 ifmsh->pre_value = 1; 3268 else 3269 ifmsh->pre_value++; 3270 } 3271 3272 /* see comments in the NL80211_IFTYPE_AP block */ 3273 if (params->count > 1) { 3274 err = ieee80211_mesh_csa_beacon(sdata, params); 3275 if (err < 0) { 3276 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3277 return err; 3278 } 3279 *changed |= err; 3280 } 3281 3282 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3283 ieee80211_send_action_csa(sdata, params); 3284 3285 break; 3286 } 3287 #endif 3288 default: 3289 return -EOPNOTSUPP; 3290 } 3291 3292 return 0; 3293 } 3294 3295 static int 3296 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3297 struct cfg80211_csa_settings *params) 3298 { 3299 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3300 struct ieee80211_local *local = sdata->local; 3301 struct ieee80211_channel_switch ch_switch; 3302 struct ieee80211_chanctx_conf *conf; 3303 struct ieee80211_chanctx *chanctx; 3304 u32 changed = 0; 3305 int err; 3306 3307 sdata_assert_lock(sdata); 3308 lockdep_assert_held(&local->mtx); 3309 3310 if (!list_empty(&local->roc_list) || local->scanning) 3311 return -EBUSY; 3312 3313 if (sdata->wdev.cac_started) 3314 return -EBUSY; 3315 3316 if (cfg80211_chandef_identical(¶ms->chandef, 3317 &sdata->vif.bss_conf.chandef)) 3318 return -EINVAL; 3319 3320 /* don't allow another channel switch if one is already active. */ 3321 if (sdata->vif.csa_active) 3322 return -EBUSY; 3323 3324 mutex_lock(&local->chanctx_mtx); 3325 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3326 lockdep_is_held(&local->chanctx_mtx)); 3327 if (!conf) { 3328 err = -EBUSY; 3329 goto out; 3330 } 3331 3332 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3333 3334 ch_switch.timestamp = 0; 3335 ch_switch.device_timestamp = 0; 3336 ch_switch.block_tx = params->block_tx; 3337 ch_switch.chandef = params->chandef; 3338 ch_switch.count = params->count; 3339 3340 err = drv_pre_channel_switch(sdata, &ch_switch); 3341 if (err) 3342 goto out; 3343 3344 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3345 chanctx->mode, 3346 params->radar_required); 3347 if (err) 3348 goto out; 3349 3350 /* if reservation is invalid then this will fail */ 3351 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3352 if (err) { 3353 ieee80211_vif_unreserve_chanctx(sdata); 3354 goto out; 3355 } 3356 3357 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3358 if (err) { 3359 ieee80211_vif_unreserve_chanctx(sdata); 3360 goto out; 3361 } 3362 3363 sdata->csa_chandef = params->chandef; 3364 sdata->csa_block_tx = params->block_tx; 3365 sdata->vif.csa_active = true; 3366 3367 if (sdata->csa_block_tx) 3368 ieee80211_stop_vif_queues(local, sdata, 3369 IEEE80211_QUEUE_STOP_REASON_CSA); 3370 3371 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3372 params->count); 3373 3374 if (changed) { 3375 ieee80211_bss_info_change_notify(sdata, changed); 3376 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3377 } else { 3378 /* if the beacon didn't change, we can finalize immediately */ 3379 ieee80211_csa_finalize(sdata); 3380 } 3381 3382 out: 3383 mutex_unlock(&local->chanctx_mtx); 3384 return err; 3385 } 3386 3387 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3388 struct cfg80211_csa_settings *params) 3389 { 3390 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3391 struct ieee80211_local *local = sdata->local; 3392 int err; 3393 3394 mutex_lock(&local->mtx); 3395 err = __ieee80211_channel_switch(wiphy, dev, params); 3396 mutex_unlock(&local->mtx); 3397 3398 return err; 3399 } 3400 3401 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3402 { 3403 lockdep_assert_held(&local->mtx); 3404 3405 local->roc_cookie_counter++; 3406 3407 /* wow, you wrapped 64 bits ... more likely a bug */ 3408 if (WARN_ON(local->roc_cookie_counter == 0)) 3409 local->roc_cookie_counter++; 3410 3411 return local->roc_cookie_counter; 3412 } 3413 3414 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3415 u64 *cookie, gfp_t gfp) 3416 { 3417 unsigned long spin_flags; 3418 struct sk_buff *ack_skb; 3419 int id; 3420 3421 ack_skb = skb_copy(skb, gfp); 3422 if (!ack_skb) 3423 return -ENOMEM; 3424 3425 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3426 id = idr_alloc(&local->ack_status_frames, ack_skb, 3427 1, 0x10000, GFP_ATOMIC); 3428 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3429 3430 if (id < 0) { 3431 kfree_skb(ack_skb); 3432 return -ENOMEM; 3433 } 3434 3435 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3436 3437 *cookie = ieee80211_mgmt_tx_cookie(local); 3438 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3439 3440 return 0; 3441 } 3442 3443 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3444 struct wireless_dev *wdev, 3445 u16 frame_type, bool reg) 3446 { 3447 struct ieee80211_local *local = wiphy_priv(wiphy); 3448 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3449 3450 switch (frame_type) { 3451 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3452 if (reg) { 3453 local->probe_req_reg++; 3454 sdata->vif.probe_req_reg++; 3455 } else { 3456 if (local->probe_req_reg) 3457 local->probe_req_reg--; 3458 3459 if (sdata->vif.probe_req_reg) 3460 sdata->vif.probe_req_reg--; 3461 } 3462 3463 if (!local->open_count) 3464 break; 3465 3466 if (sdata->vif.probe_req_reg == 1) 3467 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ, 3468 FIF_PROBE_REQ); 3469 else if (sdata->vif.probe_req_reg == 0) 3470 drv_config_iface_filter(local, sdata, 0, 3471 FIF_PROBE_REQ); 3472 3473 ieee80211_configure_filter(local); 3474 break; 3475 default: 3476 break; 3477 } 3478 } 3479 3480 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3481 { 3482 struct ieee80211_local *local = wiphy_priv(wiphy); 3483 3484 if (local->started) 3485 return -EOPNOTSUPP; 3486 3487 return drv_set_antenna(local, tx_ant, rx_ant); 3488 } 3489 3490 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3491 { 3492 struct ieee80211_local *local = wiphy_priv(wiphy); 3493 3494 return drv_get_antenna(local, tx_ant, rx_ant); 3495 } 3496 3497 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3498 struct net_device *dev, 3499 struct cfg80211_gtk_rekey_data *data) 3500 { 3501 struct ieee80211_local *local = wiphy_priv(wiphy); 3502 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3503 3504 if (!local->ops->set_rekey_data) 3505 return -EOPNOTSUPP; 3506 3507 drv_set_rekey_data(local, sdata, data); 3508 3509 return 0; 3510 } 3511 3512 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3513 const u8 *peer, u64 *cookie) 3514 { 3515 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3516 struct ieee80211_local *local = sdata->local; 3517 struct ieee80211_qos_hdr *nullfunc; 3518 struct sk_buff *skb; 3519 int size = sizeof(*nullfunc); 3520 __le16 fc; 3521 bool qos; 3522 struct ieee80211_tx_info *info; 3523 struct sta_info *sta; 3524 struct ieee80211_chanctx_conf *chanctx_conf; 3525 enum nl80211_band band; 3526 int ret; 3527 3528 /* the lock is needed to assign the cookie later */ 3529 mutex_lock(&local->mtx); 3530 3531 rcu_read_lock(); 3532 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3533 if (WARN_ON(!chanctx_conf)) { 3534 ret = -EINVAL; 3535 goto unlock; 3536 } 3537 band = chanctx_conf->def.chan->band; 3538 sta = sta_info_get_bss(sdata, peer); 3539 if (sta) { 3540 qos = sta->sta.wme; 3541 } else { 3542 ret = -ENOLINK; 3543 goto unlock; 3544 } 3545 3546 if (qos) { 3547 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3548 IEEE80211_STYPE_QOS_NULLFUNC | 3549 IEEE80211_FCTL_FROMDS); 3550 } else { 3551 size -= 2; 3552 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3553 IEEE80211_STYPE_NULLFUNC | 3554 IEEE80211_FCTL_FROMDS); 3555 } 3556 3557 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3558 if (!skb) { 3559 ret = -ENOMEM; 3560 goto unlock; 3561 } 3562 3563 skb->dev = dev; 3564 3565 skb_reserve(skb, local->hw.extra_tx_headroom); 3566 3567 nullfunc = skb_put(skb, size); 3568 nullfunc->frame_control = fc; 3569 nullfunc->duration_id = 0; 3570 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3571 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3572 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3573 nullfunc->seq_ctrl = 0; 3574 3575 info = IEEE80211_SKB_CB(skb); 3576 3577 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3578 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3579 info->band = band; 3580 3581 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3582 skb->priority = 7; 3583 if (qos) 3584 nullfunc->qos_ctrl = cpu_to_le16(7); 3585 3586 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3587 if (ret) { 3588 kfree_skb(skb); 3589 goto unlock; 3590 } 3591 3592 local_bh_disable(); 3593 ieee80211_xmit(sdata, sta, skb, 0); 3594 local_bh_enable(); 3595 3596 ret = 0; 3597 unlock: 3598 rcu_read_unlock(); 3599 mutex_unlock(&local->mtx); 3600 3601 return ret; 3602 } 3603 3604 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3605 struct wireless_dev *wdev, 3606 struct cfg80211_chan_def *chandef) 3607 { 3608 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3609 struct ieee80211_local *local = wiphy_priv(wiphy); 3610 struct ieee80211_chanctx_conf *chanctx_conf; 3611 int ret = -ENODATA; 3612 3613 rcu_read_lock(); 3614 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3615 if (chanctx_conf) { 3616 *chandef = sdata->vif.bss_conf.chandef; 3617 ret = 0; 3618 } else if (local->open_count > 0 && 3619 local->open_count == local->monitors && 3620 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3621 if (local->use_chanctx) 3622 *chandef = local->monitor_chandef; 3623 else 3624 *chandef = local->_oper_chandef; 3625 ret = 0; 3626 } 3627 rcu_read_unlock(); 3628 3629 return ret; 3630 } 3631 3632 #ifdef CONFIG_PM 3633 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3634 { 3635 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3636 } 3637 #endif 3638 3639 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3640 struct net_device *dev, 3641 struct cfg80211_qos_map *qos_map) 3642 { 3643 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3644 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3645 3646 if (qos_map) { 3647 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3648 if (!new_qos_map) 3649 return -ENOMEM; 3650 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3651 } else { 3652 /* A NULL qos_map was passed to disable QoS mapping */ 3653 new_qos_map = NULL; 3654 } 3655 3656 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3657 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3658 if (old_qos_map) 3659 kfree_rcu(old_qos_map, rcu_head); 3660 3661 return 0; 3662 } 3663 3664 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3665 struct net_device *dev, 3666 struct cfg80211_chan_def *chandef) 3667 { 3668 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3669 int ret; 3670 u32 changed = 0; 3671 3672 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3673 if (ret == 0) 3674 ieee80211_bss_info_change_notify(sdata, changed); 3675 3676 return ret; 3677 } 3678 3679 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3680 u8 tsid, const u8 *peer, u8 up, 3681 u16 admitted_time) 3682 { 3683 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3684 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3685 int ac = ieee802_1d_to_ac[up]; 3686 3687 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3688 return -EOPNOTSUPP; 3689 3690 if (!(sdata->wmm_acm & BIT(up))) 3691 return -EINVAL; 3692 3693 if (ifmgd->tx_tspec[ac].admitted_time) 3694 return -EBUSY; 3695 3696 if (admitted_time) { 3697 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3698 ifmgd->tx_tspec[ac].tsid = tsid; 3699 ifmgd->tx_tspec[ac].up = up; 3700 } 3701 3702 return 0; 3703 } 3704 3705 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3706 u8 tsid, const u8 *peer) 3707 { 3708 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3709 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3710 struct ieee80211_local *local = wiphy_priv(wiphy); 3711 int ac; 3712 3713 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3714 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3715 3716 /* skip unused entries */ 3717 if (!tx_tspec->admitted_time) 3718 continue; 3719 3720 if (tx_tspec->tsid != tsid) 3721 continue; 3722 3723 /* due to this new packets will be reassigned to non-ACM ACs */ 3724 tx_tspec->up = -1; 3725 3726 /* Make sure that all packets have been sent to avoid to 3727 * restore the QoS params on packets that are still on the 3728 * queues. 3729 */ 3730 synchronize_net(); 3731 ieee80211_flush_queues(local, sdata, false); 3732 3733 /* restore the normal QoS parameters 3734 * (unconditionally to avoid races) 3735 */ 3736 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3737 tx_tspec->downgraded = false; 3738 ieee80211_sta_handle_tspec_ac_params(sdata); 3739 3740 /* finally clear all the data */ 3741 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3742 3743 return 0; 3744 } 3745 3746 return -ENOENT; 3747 } 3748 3749 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3750 u8 inst_id, 3751 enum nl80211_nan_func_term_reason reason, 3752 gfp_t gfp) 3753 { 3754 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3755 struct cfg80211_nan_func *func; 3756 u64 cookie; 3757 3758 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3759 return; 3760 3761 spin_lock_bh(&sdata->u.nan.func_lock); 3762 3763 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3764 if (WARN_ON(!func)) { 3765 spin_unlock_bh(&sdata->u.nan.func_lock); 3766 return; 3767 } 3768 3769 cookie = func->cookie; 3770 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3771 3772 spin_unlock_bh(&sdata->u.nan.func_lock); 3773 3774 cfg80211_free_nan_func(func); 3775 3776 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3777 reason, cookie, gfp); 3778 } 3779 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3780 3781 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3782 struct cfg80211_nan_match_params *match, 3783 gfp_t gfp) 3784 { 3785 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3786 struct cfg80211_nan_func *func; 3787 3788 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3789 return; 3790 3791 spin_lock_bh(&sdata->u.nan.func_lock); 3792 3793 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3794 if (WARN_ON(!func)) { 3795 spin_unlock_bh(&sdata->u.nan.func_lock); 3796 return; 3797 } 3798 match->cookie = func->cookie; 3799 3800 spin_unlock_bh(&sdata->u.nan.func_lock); 3801 3802 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3803 } 3804 EXPORT_SYMBOL(ieee80211_nan_func_match); 3805 3806 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3807 struct net_device *dev, 3808 const bool enabled) 3809 { 3810 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3811 3812 sdata->u.ap.multicast_to_unicast = enabled; 3813 3814 return 0; 3815 } 3816 3817 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 3818 struct txq_info *txqi) 3819 { 3820 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 3821 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 3822 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 3823 } 3824 3825 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 3826 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 3827 txqstats->backlog_packets = txqi->tin.backlog_packets; 3828 } 3829 3830 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 3831 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 3832 txqstats->flows = txqi->tin.flows; 3833 } 3834 3835 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 3836 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 3837 txqstats->drops = txqi->cstats.drop_count; 3838 } 3839 3840 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 3841 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 3842 txqstats->ecn_marks = txqi->cstats.ecn_mark; 3843 } 3844 3845 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 3846 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 3847 txqstats->overlimit = txqi->tin.overlimit; 3848 } 3849 3850 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 3851 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 3852 txqstats->collisions = txqi->tin.collisions; 3853 } 3854 3855 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 3856 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 3857 txqstats->tx_bytes = txqi->tin.tx_bytes; 3858 } 3859 3860 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 3861 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 3862 txqstats->tx_packets = txqi->tin.tx_packets; 3863 } 3864 } 3865 3866 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 3867 struct wireless_dev *wdev, 3868 struct cfg80211_txq_stats *txqstats) 3869 { 3870 struct ieee80211_local *local = wiphy_priv(wiphy); 3871 struct ieee80211_sub_if_data *sdata; 3872 int ret = 0; 3873 3874 if (!local->ops->wake_tx_queue) 3875 return 1; 3876 3877 spin_lock_bh(&local->fq.lock); 3878 rcu_read_lock(); 3879 3880 if (wdev) { 3881 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3882 if (!sdata->vif.txq) { 3883 ret = 1; 3884 goto out; 3885 } 3886 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 3887 } else { 3888 /* phy stats */ 3889 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 3890 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 3891 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 3892 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 3893 BIT(NL80211_TXQ_STATS_COLLISIONS) | 3894 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 3895 txqstats->backlog_packets = local->fq.backlog; 3896 txqstats->backlog_bytes = local->fq.memory_usage; 3897 txqstats->overlimit = local->fq.overlimit; 3898 txqstats->overmemory = local->fq.overmemory; 3899 txqstats->collisions = local->fq.collisions; 3900 txqstats->max_flows = local->fq.flows_cnt; 3901 } 3902 3903 out: 3904 rcu_read_unlock(); 3905 spin_unlock_bh(&local->fq.lock); 3906 3907 return ret; 3908 } 3909 3910 static int 3911 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 3912 struct net_device *dev, 3913 struct cfg80211_ftm_responder_stats *ftm_stats) 3914 { 3915 struct ieee80211_local *local = wiphy_priv(wiphy); 3916 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3917 3918 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 3919 } 3920 3921 static int 3922 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3923 struct cfg80211_pmsr_request *request) 3924 { 3925 struct ieee80211_local *local = wiphy_priv(wiphy); 3926 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3927 3928 return drv_start_pmsr(local, sdata, request); 3929 } 3930 3931 static void 3932 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3933 struct cfg80211_pmsr_request *request) 3934 { 3935 struct ieee80211_local *local = wiphy_priv(wiphy); 3936 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3937 3938 return drv_abort_pmsr(local, sdata, request); 3939 } 3940 3941 const struct cfg80211_ops mac80211_config_ops = { 3942 .add_virtual_intf = ieee80211_add_iface, 3943 .del_virtual_intf = ieee80211_del_iface, 3944 .change_virtual_intf = ieee80211_change_iface, 3945 .start_p2p_device = ieee80211_start_p2p_device, 3946 .stop_p2p_device = ieee80211_stop_p2p_device, 3947 .add_key = ieee80211_add_key, 3948 .del_key = ieee80211_del_key, 3949 .get_key = ieee80211_get_key, 3950 .set_default_key = ieee80211_config_default_key, 3951 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3952 .start_ap = ieee80211_start_ap, 3953 .change_beacon = ieee80211_change_beacon, 3954 .stop_ap = ieee80211_stop_ap, 3955 .add_station = ieee80211_add_station, 3956 .del_station = ieee80211_del_station, 3957 .change_station = ieee80211_change_station, 3958 .get_station = ieee80211_get_station, 3959 .dump_station = ieee80211_dump_station, 3960 .dump_survey = ieee80211_dump_survey, 3961 #ifdef CONFIG_MAC80211_MESH 3962 .add_mpath = ieee80211_add_mpath, 3963 .del_mpath = ieee80211_del_mpath, 3964 .change_mpath = ieee80211_change_mpath, 3965 .get_mpath = ieee80211_get_mpath, 3966 .dump_mpath = ieee80211_dump_mpath, 3967 .get_mpp = ieee80211_get_mpp, 3968 .dump_mpp = ieee80211_dump_mpp, 3969 .update_mesh_config = ieee80211_update_mesh_config, 3970 .get_mesh_config = ieee80211_get_mesh_config, 3971 .join_mesh = ieee80211_join_mesh, 3972 .leave_mesh = ieee80211_leave_mesh, 3973 #endif 3974 .join_ocb = ieee80211_join_ocb, 3975 .leave_ocb = ieee80211_leave_ocb, 3976 .change_bss = ieee80211_change_bss, 3977 .set_txq_params = ieee80211_set_txq_params, 3978 .set_monitor_channel = ieee80211_set_monitor_channel, 3979 .suspend = ieee80211_suspend, 3980 .resume = ieee80211_resume, 3981 .scan = ieee80211_scan, 3982 .abort_scan = ieee80211_abort_scan, 3983 .sched_scan_start = ieee80211_sched_scan_start, 3984 .sched_scan_stop = ieee80211_sched_scan_stop, 3985 .auth = ieee80211_auth, 3986 .assoc = ieee80211_assoc, 3987 .deauth = ieee80211_deauth, 3988 .disassoc = ieee80211_disassoc, 3989 .join_ibss = ieee80211_join_ibss, 3990 .leave_ibss = ieee80211_leave_ibss, 3991 .set_mcast_rate = ieee80211_set_mcast_rate, 3992 .set_wiphy_params = ieee80211_set_wiphy_params, 3993 .set_tx_power = ieee80211_set_tx_power, 3994 .get_tx_power = ieee80211_get_tx_power, 3995 .set_wds_peer = ieee80211_set_wds_peer, 3996 .rfkill_poll = ieee80211_rfkill_poll, 3997 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 3998 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 3999 .set_power_mgmt = ieee80211_set_power_mgmt, 4000 .set_bitrate_mask = ieee80211_set_bitrate_mask, 4001 .remain_on_channel = ieee80211_remain_on_channel, 4002 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 4003 .mgmt_tx = ieee80211_mgmt_tx, 4004 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 4005 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 4006 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 4007 .mgmt_frame_register = ieee80211_mgmt_frame_register, 4008 .set_antenna = ieee80211_set_antenna, 4009 .get_antenna = ieee80211_get_antenna, 4010 .set_rekey_data = ieee80211_set_rekey_data, 4011 .tdls_oper = ieee80211_tdls_oper, 4012 .tdls_mgmt = ieee80211_tdls_mgmt, 4013 .tdls_channel_switch = ieee80211_tdls_channel_switch, 4014 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 4015 .probe_client = ieee80211_probe_client, 4016 .set_noack_map = ieee80211_set_noack_map, 4017 #ifdef CONFIG_PM 4018 .set_wakeup = ieee80211_set_wakeup, 4019 #endif 4020 .get_channel = ieee80211_cfg_get_channel, 4021 .start_radar_detection = ieee80211_start_radar_detection, 4022 .channel_switch = ieee80211_channel_switch, 4023 .set_qos_map = ieee80211_set_qos_map, 4024 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 4025 .add_tx_ts = ieee80211_add_tx_ts, 4026 .del_tx_ts = ieee80211_del_tx_ts, 4027 .start_nan = ieee80211_start_nan, 4028 .stop_nan = ieee80211_stop_nan, 4029 .nan_change_conf = ieee80211_nan_change_conf, 4030 .add_nan_func = ieee80211_add_nan_func, 4031 .del_nan_func = ieee80211_del_nan_func, 4032 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 4033 .tx_control_port = ieee80211_tx_control_port, 4034 .get_txq_stats = ieee80211_get_txq_stats, 4035 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 4036 .start_pmsr = ieee80211_start_pmsr, 4037 .abort_pmsr = ieee80211_abort_pmsr, 4038 .probe_mesh_link = ieee80211_probe_mesh_link, 4039 }; 4040