1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * mac80211 configuration hooks for cfg80211 4 * 5 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 6 * Copyright 2013-2015 Intel Mobile Communications GmbH 7 * Copyright (C) 2015-2017 Intel Deutschland GmbH 8 * Copyright (C) 2018-2019 Intel Corporation 9 * Copyright (C) 2018 Intel Corporation 10 */ 11 12 #include <linux/ieee80211.h> 13 #include <linux/nl80211.h> 14 #include <linux/rtnetlink.h> 15 #include <linux/slab.h> 16 #include <net/net_namespace.h> 17 #include <linux/rcupdate.h> 18 #include <linux/fips.h> 19 #include <linux/if_ether.h> 20 #include <net/cfg80211.h> 21 #include "ieee80211_i.h" 22 #include "driver-ops.h" 23 #include "rate.h" 24 #include "mesh.h" 25 #include "wme.h" 26 27 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata, 28 struct vif_params *params) 29 { 30 bool mu_mimo_groups = false; 31 bool mu_mimo_follow = false; 32 33 if (params->vht_mumimo_groups) { 34 u64 membership; 35 36 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN); 37 38 memcpy(sdata->vif.bss_conf.mu_group.membership, 39 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN); 40 memcpy(sdata->vif.bss_conf.mu_group.position, 41 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN, 42 WLAN_USER_POSITION_LEN); 43 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS); 44 /* don't care about endianness - just check for 0 */ 45 memcpy(&membership, params->vht_mumimo_groups, 46 WLAN_MEMBERSHIP_LEN); 47 mu_mimo_groups = membership != 0; 48 } 49 50 if (params->vht_mumimo_follow_addr) { 51 mu_mimo_follow = 52 is_valid_ether_addr(params->vht_mumimo_follow_addr); 53 ether_addr_copy(sdata->u.mntr.mu_follow_addr, 54 params->vht_mumimo_follow_addr); 55 } 56 57 sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow; 58 } 59 60 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata, 61 struct vif_params *params) 62 { 63 struct ieee80211_local *local = sdata->local; 64 struct ieee80211_sub_if_data *monitor_sdata; 65 66 /* check flags first */ 67 if (params->flags && ieee80211_sdata_running(sdata)) { 68 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE; 69 70 /* 71 * Prohibit MONITOR_FLAG_COOK_FRAMES and 72 * MONITOR_FLAG_ACTIVE to be changed while the 73 * interface is up. 74 * Else we would need to add a lot of cruft 75 * to update everything: 76 * cooked_mntrs, monitor and all fif_* counters 77 * reconfigure hardware 78 */ 79 if ((params->flags & mask) != (sdata->u.mntr.flags & mask)) 80 return -EBUSY; 81 } 82 83 /* also validate MU-MIMO change */ 84 monitor_sdata = rtnl_dereference(local->monitor_sdata); 85 86 if (!monitor_sdata && 87 (params->vht_mumimo_groups || params->vht_mumimo_follow_addr)) 88 return -EOPNOTSUPP; 89 90 /* apply all changes now - no failures allowed */ 91 92 if (monitor_sdata) 93 ieee80211_set_mu_mimo_follow(monitor_sdata, params); 94 95 if (params->flags) { 96 if (ieee80211_sdata_running(sdata)) { 97 ieee80211_adjust_monitor_flags(sdata, -1); 98 sdata->u.mntr.flags = params->flags; 99 ieee80211_adjust_monitor_flags(sdata, 1); 100 101 ieee80211_configure_filter(local); 102 } else { 103 /* 104 * Because the interface is down, ieee80211_do_stop 105 * and ieee80211_do_open take care of "everything" 106 * mentioned in the comment above. 107 */ 108 sdata->u.mntr.flags = params->flags; 109 } 110 } 111 112 return 0; 113 } 114 115 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, 116 const char *name, 117 unsigned char name_assign_type, 118 enum nl80211_iftype type, 119 struct vif_params *params) 120 { 121 struct ieee80211_local *local = wiphy_priv(wiphy); 122 struct wireless_dev *wdev; 123 struct ieee80211_sub_if_data *sdata; 124 int err; 125 126 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params); 127 if (err) 128 return ERR_PTR(err); 129 130 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 131 132 if (type == NL80211_IFTYPE_MONITOR) { 133 err = ieee80211_set_mon_options(sdata, params); 134 if (err) { 135 ieee80211_if_remove(sdata); 136 return NULL; 137 } 138 } 139 140 return wdev; 141 } 142 143 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) 144 { 145 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); 146 147 return 0; 148 } 149 150 static int ieee80211_change_iface(struct wiphy *wiphy, 151 struct net_device *dev, 152 enum nl80211_iftype type, 153 struct vif_params *params) 154 { 155 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 156 int ret; 157 158 ret = ieee80211_if_change_type(sdata, type); 159 if (ret) 160 return ret; 161 162 if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) { 163 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); 164 ieee80211_check_fast_rx_iface(sdata); 165 } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) { 166 sdata->u.mgd.use_4addr = params->use_4addr; 167 } 168 169 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 170 ret = ieee80211_set_mon_options(sdata, params); 171 if (ret) 172 return ret; 173 } 174 175 return 0; 176 } 177 178 static int ieee80211_start_p2p_device(struct wiphy *wiphy, 179 struct wireless_dev *wdev) 180 { 181 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 182 int ret; 183 184 mutex_lock(&sdata->local->chanctx_mtx); 185 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 186 mutex_unlock(&sdata->local->chanctx_mtx); 187 if (ret < 0) 188 return ret; 189 190 return ieee80211_do_open(wdev, true); 191 } 192 193 static void ieee80211_stop_p2p_device(struct wiphy *wiphy, 194 struct wireless_dev *wdev) 195 { 196 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); 197 } 198 199 static int ieee80211_start_nan(struct wiphy *wiphy, 200 struct wireless_dev *wdev, 201 struct cfg80211_nan_conf *conf) 202 { 203 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 204 int ret; 205 206 mutex_lock(&sdata->local->chanctx_mtx); 207 ret = ieee80211_check_combinations(sdata, NULL, 0, 0); 208 mutex_unlock(&sdata->local->chanctx_mtx); 209 if (ret < 0) 210 return ret; 211 212 ret = ieee80211_do_open(wdev, true); 213 if (ret) 214 return ret; 215 216 ret = drv_start_nan(sdata->local, sdata, conf); 217 if (ret) 218 ieee80211_sdata_stop(sdata); 219 220 sdata->u.nan.conf = *conf; 221 222 return ret; 223 } 224 225 static void ieee80211_stop_nan(struct wiphy *wiphy, 226 struct wireless_dev *wdev) 227 { 228 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 229 230 drv_stop_nan(sdata->local, sdata); 231 ieee80211_sdata_stop(sdata); 232 } 233 234 static int ieee80211_nan_change_conf(struct wiphy *wiphy, 235 struct wireless_dev *wdev, 236 struct cfg80211_nan_conf *conf, 237 u32 changes) 238 { 239 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 240 struct cfg80211_nan_conf new_conf; 241 int ret = 0; 242 243 if (sdata->vif.type != NL80211_IFTYPE_NAN) 244 return -EOPNOTSUPP; 245 246 if (!ieee80211_sdata_running(sdata)) 247 return -ENETDOWN; 248 249 new_conf = sdata->u.nan.conf; 250 251 if (changes & CFG80211_NAN_CONF_CHANGED_PREF) 252 new_conf.master_pref = conf->master_pref; 253 254 if (changes & CFG80211_NAN_CONF_CHANGED_BANDS) 255 new_conf.bands = conf->bands; 256 257 ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes); 258 if (!ret) 259 sdata->u.nan.conf = new_conf; 260 261 return ret; 262 } 263 264 static int ieee80211_add_nan_func(struct wiphy *wiphy, 265 struct wireless_dev *wdev, 266 struct cfg80211_nan_func *nan_func) 267 { 268 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 269 int ret; 270 271 if (sdata->vif.type != NL80211_IFTYPE_NAN) 272 return -EOPNOTSUPP; 273 274 if (!ieee80211_sdata_running(sdata)) 275 return -ENETDOWN; 276 277 spin_lock_bh(&sdata->u.nan.func_lock); 278 279 ret = idr_alloc(&sdata->u.nan.function_inst_ids, 280 nan_func, 1, sdata->local->hw.max_nan_de_entries + 1, 281 GFP_ATOMIC); 282 spin_unlock_bh(&sdata->u.nan.func_lock); 283 284 if (ret < 0) 285 return ret; 286 287 nan_func->instance_id = ret; 288 289 WARN_ON(nan_func->instance_id == 0); 290 291 ret = drv_add_nan_func(sdata->local, sdata, nan_func); 292 if (ret) { 293 spin_lock_bh(&sdata->u.nan.func_lock); 294 idr_remove(&sdata->u.nan.function_inst_ids, 295 nan_func->instance_id); 296 spin_unlock_bh(&sdata->u.nan.func_lock); 297 } 298 299 return ret; 300 } 301 302 static struct cfg80211_nan_func * 303 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata, 304 u64 cookie) 305 { 306 struct cfg80211_nan_func *func; 307 int id; 308 309 lockdep_assert_held(&sdata->u.nan.func_lock); 310 311 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) { 312 if (func->cookie == cookie) 313 return func; 314 } 315 316 return NULL; 317 } 318 319 static void ieee80211_del_nan_func(struct wiphy *wiphy, 320 struct wireless_dev *wdev, u64 cookie) 321 { 322 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 323 struct cfg80211_nan_func *func; 324 u8 instance_id = 0; 325 326 if (sdata->vif.type != NL80211_IFTYPE_NAN || 327 !ieee80211_sdata_running(sdata)) 328 return; 329 330 spin_lock_bh(&sdata->u.nan.func_lock); 331 332 func = ieee80211_find_nan_func_by_cookie(sdata, cookie); 333 if (func) 334 instance_id = func->instance_id; 335 336 spin_unlock_bh(&sdata->u.nan.func_lock); 337 338 if (instance_id) 339 drv_del_nan_func(sdata->local, sdata, instance_id); 340 } 341 342 static int ieee80211_set_noack_map(struct wiphy *wiphy, 343 struct net_device *dev, 344 u16 noack_map) 345 { 346 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 347 348 sdata->noack_map = noack_map; 349 350 ieee80211_check_fast_xmit_iface(sdata); 351 352 return 0; 353 } 354 355 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata, 356 const u8 *mac_addr, u8 key_idx) 357 { 358 struct ieee80211_local *local = sdata->local; 359 struct ieee80211_key *key; 360 struct sta_info *sta; 361 int ret = -EINVAL; 362 363 if (!wiphy_ext_feature_isset(local->hw.wiphy, 364 NL80211_EXT_FEATURE_EXT_KEY_ID)) 365 return -EINVAL; 366 367 sta = sta_info_get_bss(sdata, mac_addr); 368 369 if (!sta) 370 return -EINVAL; 371 372 if (sta->ptk_idx == key_idx) 373 return 0; 374 375 mutex_lock(&local->key_mtx); 376 key = key_mtx_dereference(local, sta->ptk[key_idx]); 377 378 if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX) 379 ret = ieee80211_set_tx_key(key); 380 381 mutex_unlock(&local->key_mtx); 382 return ret; 383 } 384 385 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 386 u8 key_idx, bool pairwise, const u8 *mac_addr, 387 struct key_params *params) 388 { 389 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 390 struct ieee80211_local *local = sdata->local; 391 struct sta_info *sta = NULL; 392 const struct ieee80211_cipher_scheme *cs = NULL; 393 struct ieee80211_key *key; 394 int err; 395 396 if (!ieee80211_sdata_running(sdata)) 397 return -ENETDOWN; 398 399 if (pairwise && params->mode == NL80211_KEY_SET_TX) 400 return ieee80211_set_tx(sdata, mac_addr, key_idx); 401 402 /* reject WEP and TKIP keys if WEP failed to initialize */ 403 switch (params->cipher) { 404 case WLAN_CIPHER_SUITE_WEP40: 405 case WLAN_CIPHER_SUITE_TKIP: 406 case WLAN_CIPHER_SUITE_WEP104: 407 if (WARN_ON_ONCE(fips_enabled)) 408 return -EINVAL; 409 case WLAN_CIPHER_SUITE_CCMP: 410 case WLAN_CIPHER_SUITE_CCMP_256: 411 case WLAN_CIPHER_SUITE_AES_CMAC: 412 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 413 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 414 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 415 case WLAN_CIPHER_SUITE_GCMP: 416 case WLAN_CIPHER_SUITE_GCMP_256: 417 break; 418 default: 419 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); 420 break; 421 } 422 423 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 424 params->key, params->seq_len, params->seq, 425 cs); 426 if (IS_ERR(key)) 427 return PTR_ERR(key); 428 429 if (pairwise) 430 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 431 432 if (params->mode == NL80211_KEY_NO_TX) 433 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX; 434 435 mutex_lock(&local->sta_mtx); 436 437 if (mac_addr) { 438 sta = sta_info_get_bss(sdata, mac_addr); 439 /* 440 * The ASSOC test makes sure the driver is ready to 441 * receive the key. When wpa_supplicant has roamed 442 * using FT, it attempts to set the key before 443 * association has completed, this rejects that attempt 444 * so it will set the key again after association. 445 * 446 * TODO: accept the key if we have a station entry and 447 * add it to the device after the station. 448 */ 449 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { 450 ieee80211_key_free_unused(key); 451 err = -ENOENT; 452 goto out_unlock; 453 } 454 } 455 456 switch (sdata->vif.type) { 457 case NL80211_IFTYPE_STATION: 458 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) 459 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 460 break; 461 case NL80211_IFTYPE_AP: 462 case NL80211_IFTYPE_AP_VLAN: 463 /* Keys without a station are used for TX only */ 464 if (sta && test_sta_flag(sta, WLAN_STA_MFP)) 465 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 466 break; 467 case NL80211_IFTYPE_ADHOC: 468 /* no MFP (yet) */ 469 break; 470 case NL80211_IFTYPE_MESH_POINT: 471 #ifdef CONFIG_MAC80211_MESH 472 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) 473 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; 474 break; 475 #endif 476 case NL80211_IFTYPE_WDS: 477 case NL80211_IFTYPE_MONITOR: 478 case NL80211_IFTYPE_P2P_DEVICE: 479 case NL80211_IFTYPE_NAN: 480 case NL80211_IFTYPE_UNSPECIFIED: 481 case NUM_NL80211_IFTYPES: 482 case NL80211_IFTYPE_P2P_CLIENT: 483 case NL80211_IFTYPE_P2P_GO: 484 case NL80211_IFTYPE_OCB: 485 /* shouldn't happen */ 486 WARN_ON_ONCE(1); 487 break; 488 } 489 490 if (sta) 491 sta->cipher_scheme = cs; 492 493 err = ieee80211_key_link(key, sdata, sta); 494 495 out_unlock: 496 mutex_unlock(&local->sta_mtx); 497 498 return err; 499 } 500 501 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 502 u8 key_idx, bool pairwise, const u8 *mac_addr) 503 { 504 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 505 struct ieee80211_local *local = sdata->local; 506 struct sta_info *sta; 507 struct ieee80211_key *key = NULL; 508 int ret; 509 510 mutex_lock(&local->sta_mtx); 511 mutex_lock(&local->key_mtx); 512 513 if (mac_addr) { 514 ret = -ENOENT; 515 516 sta = sta_info_get_bss(sdata, mac_addr); 517 if (!sta) 518 goto out_unlock; 519 520 if (pairwise) 521 key = key_mtx_dereference(local, sta->ptk[key_idx]); 522 else 523 key = key_mtx_dereference(local, sta->gtk[key_idx]); 524 } else 525 key = key_mtx_dereference(local, sdata->keys[key_idx]); 526 527 if (!key) { 528 ret = -ENOENT; 529 goto out_unlock; 530 } 531 532 ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION); 533 534 ret = 0; 535 out_unlock: 536 mutex_unlock(&local->key_mtx); 537 mutex_unlock(&local->sta_mtx); 538 539 return ret; 540 } 541 542 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 543 u8 key_idx, bool pairwise, const u8 *mac_addr, 544 void *cookie, 545 void (*callback)(void *cookie, 546 struct key_params *params)) 547 { 548 struct ieee80211_sub_if_data *sdata; 549 struct sta_info *sta = NULL; 550 u8 seq[6] = {0}; 551 struct key_params params; 552 struct ieee80211_key *key = NULL; 553 u64 pn64; 554 u32 iv32; 555 u16 iv16; 556 int err = -ENOENT; 557 struct ieee80211_key_seq kseq = {}; 558 559 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 560 561 rcu_read_lock(); 562 563 if (mac_addr) { 564 sta = sta_info_get_bss(sdata, mac_addr); 565 if (!sta) 566 goto out; 567 568 if (pairwise && key_idx < NUM_DEFAULT_KEYS) 569 key = rcu_dereference(sta->ptk[key_idx]); 570 else if (!pairwise && 571 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) 572 key = rcu_dereference(sta->gtk[key_idx]); 573 } else 574 key = rcu_dereference(sdata->keys[key_idx]); 575 576 if (!key) 577 goto out; 578 579 memset(¶ms, 0, sizeof(params)); 580 581 params.cipher = key->conf.cipher; 582 583 switch (key->conf.cipher) { 584 case WLAN_CIPHER_SUITE_TKIP: 585 pn64 = atomic64_read(&key->conf.tx_pn); 586 iv32 = TKIP_PN_TO_IV32(pn64); 587 iv16 = TKIP_PN_TO_IV16(pn64); 588 589 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 590 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 591 drv_get_key_seq(sdata->local, key, &kseq); 592 iv32 = kseq.tkip.iv32; 593 iv16 = kseq.tkip.iv16; 594 } 595 596 seq[0] = iv16 & 0xff; 597 seq[1] = (iv16 >> 8) & 0xff; 598 seq[2] = iv32 & 0xff; 599 seq[3] = (iv32 >> 8) & 0xff; 600 seq[4] = (iv32 >> 16) & 0xff; 601 seq[5] = (iv32 >> 24) & 0xff; 602 params.seq = seq; 603 params.seq_len = 6; 604 break; 605 case WLAN_CIPHER_SUITE_CCMP: 606 case WLAN_CIPHER_SUITE_CCMP_256: 607 case WLAN_CIPHER_SUITE_AES_CMAC: 608 case WLAN_CIPHER_SUITE_BIP_CMAC_256: 609 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 610 offsetof(typeof(kseq), aes_cmac)); 611 /* fall through */ 612 case WLAN_CIPHER_SUITE_BIP_GMAC_128: 613 case WLAN_CIPHER_SUITE_BIP_GMAC_256: 614 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 615 offsetof(typeof(kseq), aes_gmac)); 616 /* fall through */ 617 case WLAN_CIPHER_SUITE_GCMP: 618 case WLAN_CIPHER_SUITE_GCMP_256: 619 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) != 620 offsetof(typeof(kseq), gcmp)); 621 622 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && 623 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { 624 drv_get_key_seq(sdata->local, key, &kseq); 625 memcpy(seq, kseq.ccmp.pn, 6); 626 } else { 627 pn64 = atomic64_read(&key->conf.tx_pn); 628 seq[0] = pn64; 629 seq[1] = pn64 >> 8; 630 seq[2] = pn64 >> 16; 631 seq[3] = pn64 >> 24; 632 seq[4] = pn64 >> 32; 633 seq[5] = pn64 >> 40; 634 } 635 params.seq = seq; 636 params.seq_len = 6; 637 break; 638 default: 639 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) 640 break; 641 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) 642 break; 643 drv_get_key_seq(sdata->local, key, &kseq); 644 params.seq = kseq.hw.seq; 645 params.seq_len = kseq.hw.seq_len; 646 break; 647 } 648 649 params.key = key->conf.key; 650 params.key_len = key->conf.keylen; 651 652 callback(cookie, ¶ms); 653 err = 0; 654 655 out: 656 rcu_read_unlock(); 657 return err; 658 } 659 660 static int ieee80211_config_default_key(struct wiphy *wiphy, 661 struct net_device *dev, 662 u8 key_idx, bool uni, 663 bool multi) 664 { 665 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 666 667 ieee80211_set_default_key(sdata, key_idx, uni, multi); 668 669 return 0; 670 } 671 672 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 673 struct net_device *dev, 674 u8 key_idx) 675 { 676 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 677 678 ieee80211_set_default_mgmt_key(sdata, key_idx); 679 680 return 0; 681 } 682 683 void sta_set_rate_info_tx(struct sta_info *sta, 684 const struct ieee80211_tx_rate *rate, 685 struct rate_info *rinfo) 686 { 687 rinfo->flags = 0; 688 if (rate->flags & IEEE80211_TX_RC_MCS) { 689 rinfo->flags |= RATE_INFO_FLAGS_MCS; 690 rinfo->mcs = rate->idx; 691 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { 692 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; 693 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); 694 rinfo->nss = ieee80211_rate_get_vht_nss(rate); 695 } else { 696 struct ieee80211_supported_band *sband; 697 int shift = ieee80211_vif_get_shift(&sta->sdata->vif); 698 u16 brate; 699 700 sband = ieee80211_get_sband(sta->sdata); 701 if (sband) { 702 brate = sband->bitrates[rate->idx].bitrate; 703 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); 704 } 705 } 706 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 707 rinfo->bw = RATE_INFO_BW_40; 708 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) 709 rinfo->bw = RATE_INFO_BW_80; 710 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) 711 rinfo->bw = RATE_INFO_BW_160; 712 else 713 rinfo->bw = RATE_INFO_BW_20; 714 if (rate->flags & IEEE80211_TX_RC_SHORT_GI) 715 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; 716 } 717 718 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 719 int idx, u8 *mac, struct station_info *sinfo) 720 { 721 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 722 struct ieee80211_local *local = sdata->local; 723 struct sta_info *sta; 724 int ret = -ENOENT; 725 726 mutex_lock(&local->sta_mtx); 727 728 sta = sta_info_get_by_idx(sdata, idx); 729 if (sta) { 730 ret = 0; 731 memcpy(mac, sta->sta.addr, ETH_ALEN); 732 sta_set_sinfo(sta, sinfo, true); 733 } 734 735 mutex_unlock(&local->sta_mtx); 736 737 return ret; 738 } 739 740 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 741 int idx, struct survey_info *survey) 742 { 743 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 744 745 return drv_get_survey(local, idx, survey); 746 } 747 748 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 749 const u8 *mac, struct station_info *sinfo) 750 { 751 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 752 struct ieee80211_local *local = sdata->local; 753 struct sta_info *sta; 754 int ret = -ENOENT; 755 756 mutex_lock(&local->sta_mtx); 757 758 sta = sta_info_get_bss(sdata, mac); 759 if (sta) { 760 ret = 0; 761 sta_set_sinfo(sta, sinfo, true); 762 } 763 764 mutex_unlock(&local->sta_mtx); 765 766 return ret; 767 } 768 769 static int ieee80211_set_monitor_channel(struct wiphy *wiphy, 770 struct cfg80211_chan_def *chandef) 771 { 772 struct ieee80211_local *local = wiphy_priv(wiphy); 773 struct ieee80211_sub_if_data *sdata; 774 int ret = 0; 775 776 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) 777 return 0; 778 779 mutex_lock(&local->mtx); 780 if (local->use_chanctx) { 781 sdata = rtnl_dereference(local->monitor_sdata); 782 if (sdata) { 783 ieee80211_vif_release_channel(sdata); 784 ret = ieee80211_vif_use_channel(sdata, chandef, 785 IEEE80211_CHANCTX_EXCLUSIVE); 786 } 787 } else if (local->open_count == local->monitors) { 788 local->_oper_chandef = *chandef; 789 ieee80211_hw_config(local, 0); 790 } 791 792 if (ret == 0) 793 local->monitor_chandef = *chandef; 794 mutex_unlock(&local->mtx); 795 796 return ret; 797 } 798 799 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, 800 const u8 *resp, size_t resp_len, 801 const struct ieee80211_csa_settings *csa) 802 { 803 struct probe_resp *new, *old; 804 805 if (!resp || !resp_len) 806 return 1; 807 808 old = sdata_dereference(sdata->u.ap.probe_resp, sdata); 809 810 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); 811 if (!new) 812 return -ENOMEM; 813 814 new->len = resp_len; 815 memcpy(new->data, resp, resp_len); 816 817 if (csa) 818 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp, 819 csa->n_counter_offsets_presp * 820 sizeof(new->csa_counter_offsets[0])); 821 822 rcu_assign_pointer(sdata->u.ap.probe_resp, new); 823 if (old) 824 kfree_rcu(old, rcu_head); 825 826 return 0; 827 } 828 829 static int ieee80211_set_ftm_responder_params( 830 struct ieee80211_sub_if_data *sdata, 831 const u8 *lci, size_t lci_len, 832 const u8 *civicloc, size_t civicloc_len) 833 { 834 struct ieee80211_ftm_responder_params *new, *old; 835 struct ieee80211_bss_conf *bss_conf; 836 u8 *pos; 837 int len; 838 839 if (!lci_len && !civicloc_len) 840 return 0; 841 842 bss_conf = &sdata->vif.bss_conf; 843 old = bss_conf->ftmr_params; 844 len = lci_len + civicloc_len; 845 846 new = kzalloc(sizeof(*new) + len, GFP_KERNEL); 847 if (!new) 848 return -ENOMEM; 849 850 pos = (u8 *)(new + 1); 851 if (lci_len) { 852 new->lci_len = lci_len; 853 new->lci = pos; 854 memcpy(pos, lci, lci_len); 855 pos += lci_len; 856 } 857 858 if (civicloc_len) { 859 new->civicloc_len = civicloc_len; 860 new->civicloc = pos; 861 memcpy(pos, civicloc, civicloc_len); 862 pos += civicloc_len; 863 } 864 865 bss_conf->ftmr_params = new; 866 kfree(old); 867 868 return 0; 869 } 870 871 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, 872 struct cfg80211_beacon_data *params, 873 const struct ieee80211_csa_settings *csa) 874 { 875 struct beacon_data *new, *old; 876 int new_head_len, new_tail_len; 877 int size, err; 878 u32 changed = BSS_CHANGED_BEACON; 879 880 old = sdata_dereference(sdata->u.ap.beacon, sdata); 881 882 883 /* Need to have a beacon head if we don't have one yet */ 884 if (!params->head && !old) 885 return -EINVAL; 886 887 /* new or old head? */ 888 if (params->head) 889 new_head_len = params->head_len; 890 else 891 new_head_len = old->head_len; 892 893 /* new or old tail? */ 894 if (params->tail || !old) 895 /* params->tail_len will be zero for !params->tail */ 896 new_tail_len = params->tail_len; 897 else 898 new_tail_len = old->tail_len; 899 900 size = sizeof(*new) + new_head_len + new_tail_len; 901 902 new = kzalloc(size, GFP_KERNEL); 903 if (!new) 904 return -ENOMEM; 905 906 /* start filling the new info now */ 907 908 /* 909 * pointers go into the block we allocated, 910 * memory is | beacon_data | head | tail | 911 */ 912 new->head = ((u8 *) new) + sizeof(*new); 913 new->tail = new->head + new_head_len; 914 new->head_len = new_head_len; 915 new->tail_len = new_tail_len; 916 917 if (csa) { 918 new->csa_current_counter = csa->count; 919 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon, 920 csa->n_counter_offsets_beacon * 921 sizeof(new->csa_counter_offsets[0])); 922 } 923 924 /* copy in head */ 925 if (params->head) 926 memcpy(new->head, params->head, new_head_len); 927 else 928 memcpy(new->head, old->head, new_head_len); 929 930 /* copy in optional tail */ 931 if (params->tail) 932 memcpy(new->tail, params->tail, new_tail_len); 933 else 934 if (old) 935 memcpy(new->tail, old->tail, new_tail_len); 936 937 err = ieee80211_set_probe_resp(sdata, params->probe_resp, 938 params->probe_resp_len, csa); 939 if (err < 0) { 940 kfree(new); 941 return err; 942 } 943 if (err == 0) 944 changed |= BSS_CHANGED_AP_PROBE_RESP; 945 946 if (params->ftm_responder != -1) { 947 sdata->vif.bss_conf.ftm_responder = params->ftm_responder; 948 err = ieee80211_set_ftm_responder_params(sdata, 949 params->lci, 950 params->lci_len, 951 params->civicloc, 952 params->civicloc_len); 953 954 if (err < 0) { 955 kfree(new); 956 return err; 957 } 958 959 changed |= BSS_CHANGED_FTM_RESPONDER; 960 } 961 962 rcu_assign_pointer(sdata->u.ap.beacon, new); 963 964 if (old) 965 kfree_rcu(old, rcu_head); 966 967 return changed; 968 } 969 970 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, 971 struct cfg80211_ap_settings *params) 972 { 973 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 974 struct ieee80211_local *local = sdata->local; 975 struct beacon_data *old; 976 struct ieee80211_sub_if_data *vlan; 977 u32 changed = BSS_CHANGED_BEACON_INT | 978 BSS_CHANGED_BEACON_ENABLED | 979 BSS_CHANGED_BEACON | 980 BSS_CHANGED_SSID | 981 BSS_CHANGED_P2P_PS | 982 BSS_CHANGED_TXPOWER | 983 BSS_CHANGED_TWT | 984 BSS_CHANGED_HE_OBSS_PD; 985 int err; 986 int prev_beacon_int; 987 988 old = sdata_dereference(sdata->u.ap.beacon, sdata); 989 if (old) 990 return -EALREADY; 991 992 switch (params->smps_mode) { 993 case NL80211_SMPS_OFF: 994 sdata->smps_mode = IEEE80211_SMPS_OFF; 995 break; 996 case NL80211_SMPS_STATIC: 997 sdata->smps_mode = IEEE80211_SMPS_STATIC; 998 break; 999 case NL80211_SMPS_DYNAMIC: 1000 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC; 1001 break; 1002 default: 1003 return -EINVAL; 1004 } 1005 sdata->u.ap.req_smps = sdata->smps_mode; 1006 1007 sdata->needed_rx_chains = sdata->local->rx_chains; 1008 1009 prev_beacon_int = sdata->vif.bss_conf.beacon_int; 1010 sdata->vif.bss_conf.beacon_int = params->beacon_interval; 1011 1012 if (params->he_cap) 1013 sdata->vif.bss_conf.he_support = true; 1014 1015 mutex_lock(&local->mtx); 1016 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, 1017 IEEE80211_CHANCTX_SHARED); 1018 if (!err) 1019 ieee80211_vif_copy_chanctx_to_vlans(sdata, false); 1020 mutex_unlock(&local->mtx); 1021 if (err) { 1022 sdata->vif.bss_conf.beacon_int = prev_beacon_int; 1023 return err; 1024 } 1025 1026 /* 1027 * Apply control port protocol, this allows us to 1028 * not encrypt dynamic WEP control frames. 1029 */ 1030 sdata->control_port_protocol = params->crypto.control_port_ethertype; 1031 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; 1032 sdata->control_port_over_nl80211 = 1033 params->crypto.control_port_over_nl80211; 1034 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, 1035 ¶ms->crypto, 1036 sdata->vif.type); 1037 1038 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { 1039 vlan->control_port_protocol = 1040 params->crypto.control_port_ethertype; 1041 vlan->control_port_no_encrypt = 1042 params->crypto.control_port_no_encrypt; 1043 vlan->control_port_over_nl80211 = 1044 params->crypto.control_port_over_nl80211; 1045 vlan->encrypt_headroom = 1046 ieee80211_cs_headroom(sdata->local, 1047 ¶ms->crypto, 1048 vlan->vif.type); 1049 } 1050 1051 sdata->vif.bss_conf.dtim_period = params->dtim_period; 1052 sdata->vif.bss_conf.enable_beacon = true; 1053 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p; 1054 sdata->vif.bss_conf.twt_responder = params->twt_responder; 1055 memcpy(&sdata->vif.bss_conf.he_obss_pd, ¶ms->he_obss_pd, 1056 sizeof(struct ieee80211_he_obss_pd)); 1057 1058 sdata->vif.bss_conf.ssid_len = params->ssid_len; 1059 if (params->ssid_len) 1060 memcpy(sdata->vif.bss_conf.ssid, params->ssid, 1061 params->ssid_len); 1062 sdata->vif.bss_conf.hidden_ssid = 1063 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); 1064 1065 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, 1066 sizeof(sdata->vif.bss_conf.p2p_noa_attr)); 1067 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = 1068 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 1069 if (params->p2p_opp_ps) 1070 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 1071 IEEE80211_P2P_OPPPS_ENABLE_BIT; 1072 1073 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL); 1074 if (err < 0) { 1075 ieee80211_vif_release_channel(sdata); 1076 return err; 1077 } 1078 changed |= err; 1079 1080 err = drv_start_ap(sdata->local, sdata); 1081 if (err) { 1082 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1083 1084 if (old) 1085 kfree_rcu(old, rcu_head); 1086 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1087 ieee80211_vif_release_channel(sdata); 1088 return err; 1089 } 1090 1091 ieee80211_recalc_dtim(local, sdata); 1092 ieee80211_bss_info_change_notify(sdata, changed); 1093 1094 netif_carrier_on(dev); 1095 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1096 netif_carrier_on(vlan->dev); 1097 1098 return 0; 1099 } 1100 1101 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, 1102 struct cfg80211_beacon_data *params) 1103 { 1104 struct ieee80211_sub_if_data *sdata; 1105 struct beacon_data *old; 1106 int err; 1107 1108 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1109 sdata_assert_lock(sdata); 1110 1111 /* don't allow changing the beacon while CSA is in place - offset 1112 * of channel switch counter may change 1113 */ 1114 if (sdata->vif.csa_active) 1115 return -EBUSY; 1116 1117 old = sdata_dereference(sdata->u.ap.beacon, sdata); 1118 if (!old) 1119 return -ENOENT; 1120 1121 err = ieee80211_assign_beacon(sdata, params, NULL); 1122 if (err < 0) 1123 return err; 1124 ieee80211_bss_info_change_notify(sdata, err); 1125 return 0; 1126 } 1127 1128 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1129 { 1130 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1131 struct ieee80211_sub_if_data *vlan; 1132 struct ieee80211_local *local = sdata->local; 1133 struct beacon_data *old_beacon; 1134 struct probe_resp *old_probe_resp; 1135 struct cfg80211_chan_def chandef; 1136 1137 sdata_assert_lock(sdata); 1138 1139 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); 1140 if (!old_beacon) 1141 return -ENOENT; 1142 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); 1143 1144 /* abort any running channel switch */ 1145 mutex_lock(&local->mtx); 1146 sdata->vif.csa_active = false; 1147 if (sdata->csa_block_tx) { 1148 ieee80211_wake_vif_queues(local, sdata, 1149 IEEE80211_QUEUE_STOP_REASON_CSA); 1150 sdata->csa_block_tx = false; 1151 } 1152 1153 mutex_unlock(&local->mtx); 1154 1155 kfree(sdata->u.ap.next_beacon); 1156 sdata->u.ap.next_beacon = NULL; 1157 1158 /* turn off carrier for this interface and dependent VLANs */ 1159 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) 1160 netif_carrier_off(vlan->dev); 1161 netif_carrier_off(dev); 1162 1163 /* remove beacon and probe response */ 1164 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); 1165 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); 1166 kfree_rcu(old_beacon, rcu_head); 1167 if (old_probe_resp) 1168 kfree_rcu(old_probe_resp, rcu_head); 1169 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF; 1170 1171 kfree(sdata->vif.bss_conf.ftmr_params); 1172 sdata->vif.bss_conf.ftmr_params = NULL; 1173 1174 __sta_info_flush(sdata, true); 1175 ieee80211_free_keys(sdata, true); 1176 1177 sdata->vif.bss_conf.enable_beacon = false; 1178 sdata->vif.bss_conf.ssid_len = 0; 1179 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); 1180 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 1181 1182 if (sdata->wdev.cac_started) { 1183 chandef = sdata->vif.bss_conf.chandef; 1184 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); 1185 cfg80211_cac_event(sdata->dev, &chandef, 1186 NL80211_RADAR_CAC_ABORTED, 1187 GFP_KERNEL); 1188 } 1189 1190 drv_stop_ap(sdata->local, sdata); 1191 1192 /* free all potentially still buffered bcast frames */ 1193 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); 1194 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf); 1195 1196 mutex_lock(&local->mtx); 1197 ieee80211_vif_copy_chanctx_to_vlans(sdata, true); 1198 ieee80211_vif_release_channel(sdata); 1199 mutex_unlock(&local->mtx); 1200 1201 return 0; 1202 } 1203 1204 static int sta_apply_auth_flags(struct ieee80211_local *local, 1205 struct sta_info *sta, 1206 u32 mask, u32 set) 1207 { 1208 int ret; 1209 1210 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1211 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1212 !test_sta_flag(sta, WLAN_STA_AUTH)) { 1213 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1214 if (ret) 1215 return ret; 1216 } 1217 1218 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1219 set & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1220 !test_sta_flag(sta, WLAN_STA_ASSOC)) { 1221 /* 1222 * When peer becomes associated, init rate control as 1223 * well. Some drivers require rate control initialized 1224 * before drv_sta_state() is called. 1225 */ 1226 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) 1227 rate_control_rate_init(sta); 1228 1229 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1230 if (ret) 1231 return ret; 1232 } 1233 1234 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1235 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 1236 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); 1237 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1238 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); 1239 else 1240 ret = 0; 1241 if (ret) 1242 return ret; 1243 } 1244 1245 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && 1246 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1247 test_sta_flag(sta, WLAN_STA_ASSOC)) { 1248 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); 1249 if (ret) 1250 return ret; 1251 } 1252 1253 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && 1254 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && 1255 test_sta_flag(sta, WLAN_STA_AUTH)) { 1256 ret = sta_info_move_state(sta, IEEE80211_STA_NONE); 1257 if (ret) 1258 return ret; 1259 } 1260 1261 return 0; 1262 } 1263 1264 static void sta_apply_mesh_params(struct ieee80211_local *local, 1265 struct sta_info *sta, 1266 struct station_parameters *params) 1267 { 1268 #ifdef CONFIG_MAC80211_MESH 1269 struct ieee80211_sub_if_data *sdata = sta->sdata; 1270 u32 changed = 0; 1271 1272 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { 1273 switch (params->plink_state) { 1274 case NL80211_PLINK_ESTAB: 1275 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB) 1276 changed = mesh_plink_inc_estab_count(sdata); 1277 sta->mesh->plink_state = params->plink_state; 1278 sta->mesh->aid = params->peer_aid; 1279 1280 ieee80211_mps_sta_status_update(sta); 1281 changed |= ieee80211_mps_set_sta_local_pm(sta, 1282 sdata->u.mesh.mshcfg.power_mode); 1283 1284 ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg); 1285 /* init at low value */ 1286 ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10); 1287 1288 break; 1289 case NL80211_PLINK_LISTEN: 1290 case NL80211_PLINK_BLOCKED: 1291 case NL80211_PLINK_OPN_SNT: 1292 case NL80211_PLINK_OPN_RCVD: 1293 case NL80211_PLINK_CNF_RCVD: 1294 case NL80211_PLINK_HOLDING: 1295 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB) 1296 changed = mesh_plink_dec_estab_count(sdata); 1297 sta->mesh->plink_state = params->plink_state; 1298 1299 ieee80211_mps_sta_status_update(sta); 1300 changed |= ieee80211_mps_set_sta_local_pm(sta, 1301 NL80211_MESH_POWER_UNKNOWN); 1302 break; 1303 default: 1304 /* nothing */ 1305 break; 1306 } 1307 } 1308 1309 switch (params->plink_action) { 1310 case NL80211_PLINK_ACTION_NO_ACTION: 1311 /* nothing */ 1312 break; 1313 case NL80211_PLINK_ACTION_OPEN: 1314 changed |= mesh_plink_open(sta); 1315 break; 1316 case NL80211_PLINK_ACTION_BLOCK: 1317 changed |= mesh_plink_block(sta); 1318 break; 1319 } 1320 1321 if (params->local_pm) 1322 changed |= ieee80211_mps_set_sta_local_pm(sta, 1323 params->local_pm); 1324 1325 ieee80211_mbss_info_change_notify(sdata, changed); 1326 #endif 1327 } 1328 1329 static int sta_apply_parameters(struct ieee80211_local *local, 1330 struct sta_info *sta, 1331 struct station_parameters *params) 1332 { 1333 int ret = 0; 1334 struct ieee80211_supported_band *sband; 1335 struct ieee80211_sub_if_data *sdata = sta->sdata; 1336 u32 mask, set; 1337 1338 sband = ieee80211_get_sband(sdata); 1339 if (!sband) 1340 return -EINVAL; 1341 1342 mask = params->sta_flags_mask; 1343 set = params->sta_flags_set; 1344 1345 if (ieee80211_vif_is_mesh(&sdata->vif)) { 1346 /* 1347 * In mesh mode, ASSOCIATED isn't part of the nl80211 1348 * API but must follow AUTHENTICATED for driver state. 1349 */ 1350 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1351 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1352 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 1353 set |= BIT(NL80211_STA_FLAG_ASSOCIATED); 1354 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1355 /* 1356 * TDLS -- everything follows authorized, but 1357 * only becoming authorized is possible, not 1358 * going back 1359 */ 1360 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1361 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1362 BIT(NL80211_STA_FLAG_ASSOCIATED); 1363 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | 1364 BIT(NL80211_STA_FLAG_ASSOCIATED); 1365 } 1366 } 1367 1368 if (mask & BIT(NL80211_STA_FLAG_WME) && 1369 local->hw.queues >= IEEE80211_NUM_ACS) 1370 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME); 1371 1372 /* auth flags will be set later for TDLS, 1373 * and for unassociated stations that move to assocaited */ 1374 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1375 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) && 1376 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) { 1377 ret = sta_apply_auth_flags(local, sta, mask, set); 1378 if (ret) 1379 return ret; 1380 } 1381 1382 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 1383 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 1384 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1385 else 1386 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); 1387 } 1388 1389 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 1390 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP)); 1391 if (set & BIT(NL80211_STA_FLAG_MFP)) 1392 set_sta_flag(sta, WLAN_STA_MFP); 1393 else 1394 clear_sta_flag(sta, WLAN_STA_MFP); 1395 } 1396 1397 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { 1398 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1399 set_sta_flag(sta, WLAN_STA_TDLS_PEER); 1400 else 1401 clear_sta_flag(sta, WLAN_STA_TDLS_PEER); 1402 } 1403 1404 /* mark TDLS channel switch support, if the AP allows it */ 1405 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1406 !sdata->u.mgd.tdls_chan_switch_prohibited && 1407 params->ext_capab_len >= 4 && 1408 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) 1409 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH); 1410 1411 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1412 !sdata->u.mgd.tdls_wider_bw_prohibited && 1413 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) && 1414 params->ext_capab_len >= 8 && 1415 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) 1416 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW); 1417 1418 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { 1419 sta->sta.uapsd_queues = params->uapsd_queues; 1420 sta->sta.max_sp = params->max_sp; 1421 } 1422 1423 /* The sender might not have sent the last bit, consider it to be 0 */ 1424 if (params->ext_capab_len >= 8) { 1425 u8 val = (params->ext_capab[7] & 1426 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7; 1427 1428 /* we did get all the bits, take the MSB as well */ 1429 if (params->ext_capab_len >= 9) { 1430 u8 val_msb = params->ext_capab[8] & 1431 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB; 1432 val_msb <<= 1; 1433 val |= val_msb; 1434 } 1435 1436 switch (val) { 1437 case 1: 1438 sta->sta.max_amsdu_subframes = 32; 1439 break; 1440 case 2: 1441 sta->sta.max_amsdu_subframes = 16; 1442 break; 1443 case 3: 1444 sta->sta.max_amsdu_subframes = 8; 1445 break; 1446 default: 1447 sta->sta.max_amsdu_subframes = 0; 1448 } 1449 } 1450 1451 /* 1452 * cfg80211 validates this (1-2007) and allows setting the AID 1453 * only when creating a new station entry 1454 */ 1455 if (params->aid) 1456 sta->sta.aid = params->aid; 1457 1458 /* 1459 * Some of the following updates would be racy if called on an 1460 * existing station, via ieee80211_change_station(). However, 1461 * all such changes are rejected by cfg80211 except for updates 1462 * changing the supported rates on an existing but not yet used 1463 * TDLS peer. 1464 */ 1465 1466 if (params->listen_interval >= 0) 1467 sta->listen_interval = params->listen_interval; 1468 1469 if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) { 1470 sta->sta.txpwr.type = params->txpwr.type; 1471 if (params->txpwr.type == NL80211_TX_POWER_LIMITED) 1472 sta->sta.txpwr.power = params->txpwr.power; 1473 ret = drv_sta_set_txpwr(local, sdata, sta); 1474 if (ret) 1475 return ret; 1476 } 1477 1478 if (params->supported_rates && params->supported_rates_len) { 1479 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 1480 sband, params->supported_rates, 1481 params->supported_rates_len, 1482 &sta->sta.supp_rates[sband->band]); 1483 } 1484 1485 if (params->ht_capa) 1486 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, 1487 params->ht_capa, sta); 1488 1489 /* VHT can override some HT caps such as the A-MSDU max length */ 1490 if (params->vht_capa) 1491 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, 1492 params->vht_capa, sta); 1493 1494 if (params->he_capa) 1495 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, 1496 (void *)params->he_capa, 1497 params->he_capa_len, sta); 1498 1499 if (params->opmode_notif_used) { 1500 /* returned value is only needed for rc update, but the 1501 * rc isn't initialized here yet, so ignore it 1502 */ 1503 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif, 1504 sband->band); 1505 } 1506 1507 if (params->support_p2p_ps >= 0) 1508 sta->sta.support_p2p_ps = params->support_p2p_ps; 1509 1510 if (ieee80211_vif_is_mesh(&sdata->vif)) 1511 sta_apply_mesh_params(local, sta, params); 1512 1513 if (params->airtime_weight) 1514 sta->airtime_weight = params->airtime_weight; 1515 1516 /* set the STA state after all sta info from usermode has been set */ 1517 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) || 1518 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) { 1519 ret = sta_apply_auth_flags(local, sta, mask, set); 1520 if (ret) 1521 return ret; 1522 } 1523 1524 return 0; 1525 } 1526 1527 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 1528 const u8 *mac, 1529 struct station_parameters *params) 1530 { 1531 struct ieee80211_local *local = wiphy_priv(wiphy); 1532 struct sta_info *sta; 1533 struct ieee80211_sub_if_data *sdata; 1534 int err; 1535 int layer2_update; 1536 1537 if (params->vlan) { 1538 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1539 1540 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 1541 sdata->vif.type != NL80211_IFTYPE_AP) 1542 return -EINVAL; 1543 } else 1544 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1545 1546 if (ether_addr_equal(mac, sdata->vif.addr)) 1547 return -EINVAL; 1548 1549 if (!is_valid_ether_addr(mac)) 1550 return -EINVAL; 1551 1552 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 1553 if (!sta) 1554 return -ENOMEM; 1555 1556 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) 1557 sta->sta.tdls = true; 1558 1559 if (sta->sta.tdls && sdata->vif.type == NL80211_IFTYPE_STATION && 1560 !sdata->u.mgd.associated) 1561 return -EINVAL; 1562 1563 err = sta_apply_parameters(local, sta, params); 1564 if (err) { 1565 sta_info_free(local, sta); 1566 return err; 1567 } 1568 1569 /* 1570 * for TDLS and for unassociated station, rate control should be 1571 * initialized only when rates are known and station is marked 1572 * authorized/associated 1573 */ 1574 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) && 1575 test_sta_flag(sta, WLAN_STA_ASSOC)) 1576 rate_control_rate_init(sta); 1577 1578 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 1579 sdata->vif.type == NL80211_IFTYPE_AP; 1580 1581 err = sta_info_insert_rcu(sta); 1582 if (err) { 1583 rcu_read_unlock(); 1584 return err; 1585 } 1586 1587 if (layer2_update) 1588 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1589 1590 rcu_read_unlock(); 1591 1592 return 0; 1593 } 1594 1595 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1596 struct station_del_parameters *params) 1597 { 1598 struct ieee80211_sub_if_data *sdata; 1599 1600 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1601 1602 if (params->mac) 1603 return sta_info_destroy_addr_bss(sdata, params->mac); 1604 1605 sta_info_flush(sdata); 1606 return 0; 1607 } 1608 1609 static int ieee80211_change_station(struct wiphy *wiphy, 1610 struct net_device *dev, const u8 *mac, 1611 struct station_parameters *params) 1612 { 1613 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1614 struct ieee80211_local *local = wiphy_priv(wiphy); 1615 struct sta_info *sta; 1616 struct ieee80211_sub_if_data *vlansdata; 1617 enum cfg80211_station_type statype; 1618 int err; 1619 1620 mutex_lock(&local->sta_mtx); 1621 1622 sta = sta_info_get_bss(sdata, mac); 1623 if (!sta) { 1624 err = -ENOENT; 1625 goto out_err; 1626 } 1627 1628 switch (sdata->vif.type) { 1629 case NL80211_IFTYPE_MESH_POINT: 1630 if (sdata->u.mesh.user_mpm) 1631 statype = CFG80211_STA_MESH_PEER_USER; 1632 else 1633 statype = CFG80211_STA_MESH_PEER_KERNEL; 1634 break; 1635 case NL80211_IFTYPE_ADHOC: 1636 statype = CFG80211_STA_IBSS; 1637 break; 1638 case NL80211_IFTYPE_STATION: 1639 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { 1640 statype = CFG80211_STA_AP_STA; 1641 break; 1642 } 1643 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1644 statype = CFG80211_STA_TDLS_PEER_ACTIVE; 1645 else 1646 statype = CFG80211_STA_TDLS_PEER_SETUP; 1647 break; 1648 case NL80211_IFTYPE_AP: 1649 case NL80211_IFTYPE_AP_VLAN: 1650 if (test_sta_flag(sta, WLAN_STA_ASSOC)) 1651 statype = CFG80211_STA_AP_CLIENT; 1652 else 1653 statype = CFG80211_STA_AP_CLIENT_UNASSOC; 1654 break; 1655 default: 1656 err = -EOPNOTSUPP; 1657 goto out_err; 1658 } 1659 1660 err = cfg80211_check_station_change(wiphy, params, statype); 1661 if (err) 1662 goto out_err; 1663 1664 if (params->vlan && params->vlan != sta->sdata->dev) { 1665 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 1666 1667 if (params->vlan->ieee80211_ptr->use_4addr) { 1668 if (vlansdata->u.vlan.sta) { 1669 err = -EBUSY; 1670 goto out_err; 1671 } 1672 1673 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 1674 __ieee80211_check_fast_rx_iface(vlansdata); 1675 } 1676 1677 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && 1678 sta->sdata->u.vlan.sta) 1679 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL); 1680 1681 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1682 ieee80211_vif_dec_num_mcast(sta->sdata); 1683 1684 sta->sdata = vlansdata; 1685 ieee80211_check_fast_xmit(sta); 1686 1687 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 1688 ieee80211_vif_inc_num_mcast(sta->sdata); 1689 1690 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr); 1691 } 1692 1693 err = sta_apply_parameters(local, sta, params); 1694 if (err) 1695 goto out_err; 1696 1697 mutex_unlock(&local->sta_mtx); 1698 1699 if ((sdata->vif.type == NL80211_IFTYPE_AP || 1700 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && 1701 sta->known_smps_mode != sta->sdata->bss->req_smps && 1702 test_sta_flag(sta, WLAN_STA_AUTHORIZED) && 1703 sta_info_tx_streams(sta) != 1) { 1704 ht_dbg(sta->sdata, 1705 "%pM just authorized and MIMO capable - update SMPS\n", 1706 sta->sta.addr); 1707 ieee80211_send_smps_action(sta->sdata, 1708 sta->sdata->bss->req_smps, 1709 sta->sta.addr, 1710 sta->sdata->vif.bss_conf.bssid); 1711 } 1712 1713 if (sdata->vif.type == NL80211_IFTYPE_STATION && 1714 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 1715 ieee80211_recalc_ps(local); 1716 ieee80211_recalc_ps_vif(sdata); 1717 } 1718 1719 return 0; 1720 out_err: 1721 mutex_unlock(&local->sta_mtx); 1722 return err; 1723 } 1724 1725 #ifdef CONFIG_MAC80211_MESH 1726 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 1727 const u8 *dst, const u8 *next_hop) 1728 { 1729 struct ieee80211_sub_if_data *sdata; 1730 struct mesh_path *mpath; 1731 struct sta_info *sta; 1732 1733 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1734 1735 rcu_read_lock(); 1736 sta = sta_info_get(sdata, next_hop); 1737 if (!sta) { 1738 rcu_read_unlock(); 1739 return -ENOENT; 1740 } 1741 1742 mpath = mesh_path_add(sdata, dst); 1743 if (IS_ERR(mpath)) { 1744 rcu_read_unlock(); 1745 return PTR_ERR(mpath); 1746 } 1747 1748 mesh_path_fix_nexthop(mpath, sta); 1749 1750 rcu_read_unlock(); 1751 return 0; 1752 } 1753 1754 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 1755 const u8 *dst) 1756 { 1757 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1758 1759 if (dst) 1760 return mesh_path_del(sdata, dst); 1761 1762 mesh_path_flush_by_iface(sdata); 1763 return 0; 1764 } 1765 1766 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, 1767 const u8 *dst, const u8 *next_hop) 1768 { 1769 struct ieee80211_sub_if_data *sdata; 1770 struct mesh_path *mpath; 1771 struct sta_info *sta; 1772 1773 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1774 1775 rcu_read_lock(); 1776 1777 sta = sta_info_get(sdata, next_hop); 1778 if (!sta) { 1779 rcu_read_unlock(); 1780 return -ENOENT; 1781 } 1782 1783 mpath = mesh_path_lookup(sdata, dst); 1784 if (!mpath) { 1785 rcu_read_unlock(); 1786 return -ENOENT; 1787 } 1788 1789 mesh_path_fix_nexthop(mpath, sta); 1790 1791 rcu_read_unlock(); 1792 return 0; 1793 } 1794 1795 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 1796 struct mpath_info *pinfo) 1797 { 1798 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 1799 1800 if (next_hop_sta) 1801 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 1802 else 1803 eth_zero_addr(next_hop); 1804 1805 memset(pinfo, 0, sizeof(*pinfo)); 1806 1807 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation; 1808 1809 pinfo->filled = MPATH_INFO_FRAME_QLEN | 1810 MPATH_INFO_SN | 1811 MPATH_INFO_METRIC | 1812 MPATH_INFO_EXPTIME | 1813 MPATH_INFO_DISCOVERY_TIMEOUT | 1814 MPATH_INFO_DISCOVERY_RETRIES | 1815 MPATH_INFO_FLAGS | 1816 MPATH_INFO_HOP_COUNT | 1817 MPATH_INFO_PATH_CHANGE; 1818 1819 pinfo->frame_qlen = mpath->frame_queue.qlen; 1820 pinfo->sn = mpath->sn; 1821 pinfo->metric = mpath->metric; 1822 if (time_before(jiffies, mpath->exp_time)) 1823 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 1824 pinfo->discovery_timeout = 1825 jiffies_to_msecs(mpath->discovery_timeout); 1826 pinfo->discovery_retries = mpath->discovery_retries; 1827 if (mpath->flags & MESH_PATH_ACTIVE) 1828 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 1829 if (mpath->flags & MESH_PATH_RESOLVING) 1830 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 1831 if (mpath->flags & MESH_PATH_SN_VALID) 1832 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 1833 if (mpath->flags & MESH_PATH_FIXED) 1834 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 1835 if (mpath->flags & MESH_PATH_RESOLVED) 1836 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; 1837 pinfo->hop_count = mpath->hop_count; 1838 pinfo->path_change_count = mpath->path_change_count; 1839 } 1840 1841 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 1842 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 1843 1844 { 1845 struct ieee80211_sub_if_data *sdata; 1846 struct mesh_path *mpath; 1847 1848 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1849 1850 rcu_read_lock(); 1851 mpath = mesh_path_lookup(sdata, dst); 1852 if (!mpath) { 1853 rcu_read_unlock(); 1854 return -ENOENT; 1855 } 1856 memcpy(dst, mpath->dst, ETH_ALEN); 1857 mpath_set_pinfo(mpath, next_hop, pinfo); 1858 rcu_read_unlock(); 1859 return 0; 1860 } 1861 1862 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1863 int idx, u8 *dst, u8 *next_hop, 1864 struct mpath_info *pinfo) 1865 { 1866 struct ieee80211_sub_if_data *sdata; 1867 struct mesh_path *mpath; 1868 1869 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1870 1871 rcu_read_lock(); 1872 mpath = mesh_path_lookup_by_idx(sdata, idx); 1873 if (!mpath) { 1874 rcu_read_unlock(); 1875 return -ENOENT; 1876 } 1877 memcpy(dst, mpath->dst, ETH_ALEN); 1878 mpath_set_pinfo(mpath, next_hop, pinfo); 1879 rcu_read_unlock(); 1880 return 0; 1881 } 1882 1883 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp, 1884 struct mpath_info *pinfo) 1885 { 1886 memset(pinfo, 0, sizeof(*pinfo)); 1887 memcpy(mpp, mpath->mpp, ETH_ALEN); 1888 1889 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation; 1890 } 1891 1892 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev, 1893 u8 *dst, u8 *mpp, struct mpath_info *pinfo) 1894 1895 { 1896 struct ieee80211_sub_if_data *sdata; 1897 struct mesh_path *mpath; 1898 1899 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1900 1901 rcu_read_lock(); 1902 mpath = mpp_path_lookup(sdata, dst); 1903 if (!mpath) { 1904 rcu_read_unlock(); 1905 return -ENOENT; 1906 } 1907 memcpy(dst, mpath->dst, ETH_ALEN); 1908 mpp_set_pinfo(mpath, mpp, pinfo); 1909 rcu_read_unlock(); 1910 return 0; 1911 } 1912 1913 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev, 1914 int idx, u8 *dst, u8 *mpp, 1915 struct mpath_info *pinfo) 1916 { 1917 struct ieee80211_sub_if_data *sdata; 1918 struct mesh_path *mpath; 1919 1920 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1921 1922 rcu_read_lock(); 1923 mpath = mpp_path_lookup_by_idx(sdata, idx); 1924 if (!mpath) { 1925 rcu_read_unlock(); 1926 return -ENOENT; 1927 } 1928 memcpy(dst, mpath->dst, ETH_ALEN); 1929 mpp_set_pinfo(mpath, mpp, pinfo); 1930 rcu_read_unlock(); 1931 return 0; 1932 } 1933 1934 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1935 struct net_device *dev, 1936 struct mesh_config *conf) 1937 { 1938 struct ieee80211_sub_if_data *sdata; 1939 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1940 1941 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1942 return 0; 1943 } 1944 1945 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1946 { 1947 return (mask >> (parm-1)) & 0x1; 1948 } 1949 1950 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1951 const struct mesh_setup *setup) 1952 { 1953 u8 *new_ie; 1954 const u8 *old_ie; 1955 struct ieee80211_sub_if_data *sdata = container_of(ifmsh, 1956 struct ieee80211_sub_if_data, u.mesh); 1957 1958 /* allocate information elements */ 1959 new_ie = NULL; 1960 old_ie = ifmsh->ie; 1961 1962 if (setup->ie_len) { 1963 new_ie = kmemdup(setup->ie, setup->ie_len, 1964 GFP_KERNEL); 1965 if (!new_ie) 1966 return -ENOMEM; 1967 } 1968 ifmsh->ie_len = setup->ie_len; 1969 ifmsh->ie = new_ie; 1970 kfree(old_ie); 1971 1972 /* now copy the rest of the setup parameters */ 1973 ifmsh->mesh_id_len = setup->mesh_id_len; 1974 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1975 ifmsh->mesh_sp_id = setup->sync_method; 1976 ifmsh->mesh_pp_id = setup->path_sel_proto; 1977 ifmsh->mesh_pm_id = setup->path_metric; 1978 ifmsh->user_mpm = setup->user_mpm; 1979 ifmsh->mesh_auth_id = setup->auth_id; 1980 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1981 ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs; 1982 if (setup->is_authenticated) 1983 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1984 if (setup->is_secure) 1985 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1986 1987 /* mcast rate setting in Mesh Node */ 1988 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, 1989 sizeof(setup->mcast_rate)); 1990 sdata->vif.bss_conf.basic_rates = setup->basic_rates; 1991 1992 sdata->vif.bss_conf.beacon_int = setup->beacon_interval; 1993 sdata->vif.bss_conf.dtim_period = setup->dtim_period; 1994 1995 return 0; 1996 } 1997 1998 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1999 struct net_device *dev, u32 mask, 2000 const struct mesh_config *nconf) 2001 { 2002 struct mesh_config *conf; 2003 struct ieee80211_sub_if_data *sdata; 2004 struct ieee80211_if_mesh *ifmsh; 2005 2006 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2007 ifmsh = &sdata->u.mesh; 2008 2009 /* Set the config options which we are interested in setting */ 2010 conf = &(sdata->u.mesh.mshcfg); 2011 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 2012 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 2013 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 2014 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 2015 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 2016 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 2017 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 2018 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 2019 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 2020 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 2021 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 2022 conf->dot11MeshTTL = nconf->dot11MeshTTL; 2023 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 2024 conf->element_ttl = nconf->element_ttl; 2025 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { 2026 if (ifmsh->user_mpm) 2027 return -EBUSY; 2028 conf->auto_open_plinks = nconf->auto_open_plinks; 2029 } 2030 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) 2031 conf->dot11MeshNbrOffsetMaxNeighbor = 2032 nconf->dot11MeshNbrOffsetMaxNeighbor; 2033 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 2034 conf->dot11MeshHWMPmaxPREQretries = 2035 nconf->dot11MeshHWMPmaxPREQretries; 2036 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 2037 conf->path_refresh_time = nconf->path_refresh_time; 2038 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 2039 conf->min_discovery_timeout = nconf->min_discovery_timeout; 2040 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 2041 conf->dot11MeshHWMPactivePathTimeout = 2042 nconf->dot11MeshHWMPactivePathTimeout; 2043 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 2044 conf->dot11MeshHWMPpreqMinInterval = 2045 nconf->dot11MeshHWMPpreqMinInterval; 2046 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) 2047 conf->dot11MeshHWMPperrMinInterval = 2048 nconf->dot11MeshHWMPperrMinInterval; 2049 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 2050 mask)) 2051 conf->dot11MeshHWMPnetDiameterTraversalTime = 2052 nconf->dot11MeshHWMPnetDiameterTraversalTime; 2053 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 2054 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 2055 ieee80211_mesh_root_setup(ifmsh); 2056 } 2057 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { 2058 /* our current gate announcement implementation rides on root 2059 * announcements, so require this ifmsh to also be a root node 2060 * */ 2061 if (nconf->dot11MeshGateAnnouncementProtocol && 2062 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { 2063 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; 2064 ieee80211_mesh_root_setup(ifmsh); 2065 } 2066 conf->dot11MeshGateAnnouncementProtocol = 2067 nconf->dot11MeshGateAnnouncementProtocol; 2068 } 2069 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) 2070 conf->dot11MeshHWMPRannInterval = 2071 nconf->dot11MeshHWMPRannInterval; 2072 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) 2073 conf->dot11MeshForwarding = nconf->dot11MeshForwarding; 2074 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { 2075 /* our RSSI threshold implementation is supported only for 2076 * devices that report signal in dBm. 2077 */ 2078 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM)) 2079 return -ENOTSUPP; 2080 conf->rssi_threshold = nconf->rssi_threshold; 2081 } 2082 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { 2083 conf->ht_opmode = nconf->ht_opmode; 2084 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; 2085 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 2086 } 2087 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) 2088 conf->dot11MeshHWMPactivePathToRootTimeout = 2089 nconf->dot11MeshHWMPactivePathToRootTimeout; 2090 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) 2091 conf->dot11MeshHWMProotInterval = 2092 nconf->dot11MeshHWMProotInterval; 2093 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) 2094 conf->dot11MeshHWMPconfirmationInterval = 2095 nconf->dot11MeshHWMPconfirmationInterval; 2096 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { 2097 conf->power_mode = nconf->power_mode; 2098 ieee80211_mps_local_status_update(sdata); 2099 } 2100 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) 2101 conf->dot11MeshAwakeWindowDuration = 2102 nconf->dot11MeshAwakeWindowDuration; 2103 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) 2104 conf->plink_timeout = nconf->plink_timeout; 2105 if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask)) 2106 conf->dot11MeshConnectedToMeshGate = 2107 nconf->dot11MeshConnectedToMeshGate; 2108 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); 2109 return 0; 2110 } 2111 2112 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 2113 const struct mesh_config *conf, 2114 const struct mesh_setup *setup) 2115 { 2116 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2117 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 2118 int err; 2119 2120 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 2121 err = copy_mesh_setup(ifmsh, setup); 2122 if (err) 2123 return err; 2124 2125 sdata->control_port_over_nl80211 = setup->control_port_over_nl80211; 2126 2127 /* can mesh use other SMPS modes? */ 2128 sdata->smps_mode = IEEE80211_SMPS_OFF; 2129 sdata->needed_rx_chains = sdata->local->rx_chains; 2130 2131 mutex_lock(&sdata->local->mtx); 2132 err = ieee80211_vif_use_channel(sdata, &setup->chandef, 2133 IEEE80211_CHANCTX_SHARED); 2134 mutex_unlock(&sdata->local->mtx); 2135 if (err) 2136 return err; 2137 2138 return ieee80211_start_mesh(sdata); 2139 } 2140 2141 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 2142 { 2143 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2144 2145 ieee80211_stop_mesh(sdata); 2146 mutex_lock(&sdata->local->mtx); 2147 ieee80211_vif_release_channel(sdata); 2148 mutex_unlock(&sdata->local->mtx); 2149 2150 return 0; 2151 } 2152 #endif 2153 2154 static int ieee80211_change_bss(struct wiphy *wiphy, 2155 struct net_device *dev, 2156 struct bss_parameters *params) 2157 { 2158 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2159 struct ieee80211_supported_band *sband; 2160 u32 changed = 0; 2161 2162 if (!sdata_dereference(sdata->u.ap.beacon, sdata)) 2163 return -ENOENT; 2164 2165 sband = ieee80211_get_sband(sdata); 2166 if (!sband) 2167 return -EINVAL; 2168 2169 if (params->use_cts_prot >= 0) { 2170 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 2171 changed |= BSS_CHANGED_ERP_CTS_PROT; 2172 } 2173 if (params->use_short_preamble >= 0) { 2174 sdata->vif.bss_conf.use_short_preamble = 2175 params->use_short_preamble; 2176 changed |= BSS_CHANGED_ERP_PREAMBLE; 2177 } 2178 2179 if (!sdata->vif.bss_conf.use_short_slot && 2180 sband->band == NL80211_BAND_5GHZ) { 2181 sdata->vif.bss_conf.use_short_slot = true; 2182 changed |= BSS_CHANGED_ERP_SLOT; 2183 } 2184 2185 if (params->use_short_slot_time >= 0) { 2186 sdata->vif.bss_conf.use_short_slot = 2187 params->use_short_slot_time; 2188 changed |= BSS_CHANGED_ERP_SLOT; 2189 } 2190 2191 if (params->basic_rates) { 2192 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, 2193 wiphy->bands[sband->band], 2194 params->basic_rates, 2195 params->basic_rates_len, 2196 &sdata->vif.bss_conf.basic_rates); 2197 changed |= BSS_CHANGED_BASIC_RATES; 2198 ieee80211_check_rate_mask(sdata); 2199 } 2200 2201 if (params->ap_isolate >= 0) { 2202 if (params->ap_isolate) 2203 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2204 else 2205 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 2206 ieee80211_check_fast_rx_iface(sdata); 2207 } 2208 2209 if (params->ht_opmode >= 0) { 2210 sdata->vif.bss_conf.ht_operation_mode = 2211 (u16) params->ht_opmode; 2212 changed |= BSS_CHANGED_HT; 2213 } 2214 2215 if (params->p2p_ctwindow >= 0) { 2216 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2217 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2218 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2219 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; 2220 changed |= BSS_CHANGED_P2P_PS; 2221 } 2222 2223 if (params->p2p_opp_ps > 0) { 2224 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= 2225 IEEE80211_P2P_OPPPS_ENABLE_BIT; 2226 changed |= BSS_CHANGED_P2P_PS; 2227 } else if (params->p2p_opp_ps == 0) { 2228 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= 2229 ~IEEE80211_P2P_OPPPS_ENABLE_BIT; 2230 changed |= BSS_CHANGED_P2P_PS; 2231 } 2232 2233 ieee80211_bss_info_change_notify(sdata, changed); 2234 2235 return 0; 2236 } 2237 2238 static int ieee80211_set_txq_params(struct wiphy *wiphy, 2239 struct net_device *dev, 2240 struct ieee80211_txq_params *params) 2241 { 2242 struct ieee80211_local *local = wiphy_priv(wiphy); 2243 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2244 struct ieee80211_tx_queue_params p; 2245 2246 if (!local->ops->conf_tx) 2247 return -EOPNOTSUPP; 2248 2249 if (local->hw.queues < IEEE80211_NUM_ACS) 2250 return -EOPNOTSUPP; 2251 2252 memset(&p, 0, sizeof(p)); 2253 p.aifs = params->aifs; 2254 p.cw_max = params->cwmax; 2255 p.cw_min = params->cwmin; 2256 p.txop = params->txop; 2257 2258 /* 2259 * Setting tx queue params disables u-apsd because it's only 2260 * called in master mode. 2261 */ 2262 p.uapsd = false; 2263 2264 ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac); 2265 2266 sdata->tx_conf[params->ac] = p; 2267 if (drv_conf_tx(local, sdata, params->ac, &p)) { 2268 wiphy_debug(local->hw.wiphy, 2269 "failed to set TX queue parameters for AC %d\n", 2270 params->ac); 2271 return -EINVAL; 2272 } 2273 2274 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); 2275 2276 return 0; 2277 } 2278 2279 #ifdef CONFIG_PM 2280 static int ieee80211_suspend(struct wiphy *wiphy, 2281 struct cfg80211_wowlan *wowlan) 2282 { 2283 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 2284 } 2285 2286 static int ieee80211_resume(struct wiphy *wiphy) 2287 { 2288 return __ieee80211_resume(wiphy_priv(wiphy)); 2289 } 2290 #else 2291 #define ieee80211_suspend NULL 2292 #define ieee80211_resume NULL 2293 #endif 2294 2295 static int ieee80211_scan(struct wiphy *wiphy, 2296 struct cfg80211_scan_request *req) 2297 { 2298 struct ieee80211_sub_if_data *sdata; 2299 2300 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); 2301 2302 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 2303 case NL80211_IFTYPE_STATION: 2304 case NL80211_IFTYPE_ADHOC: 2305 case NL80211_IFTYPE_MESH_POINT: 2306 case NL80211_IFTYPE_P2P_CLIENT: 2307 case NL80211_IFTYPE_P2P_DEVICE: 2308 break; 2309 case NL80211_IFTYPE_P2P_GO: 2310 if (sdata->local->ops->hw_scan) 2311 break; 2312 /* 2313 * FIXME: implement NoA while scanning in software, 2314 * for now fall through to allow scanning only when 2315 * beaconing hasn't been configured yet 2316 */ 2317 /* fall through */ 2318 case NL80211_IFTYPE_AP: 2319 /* 2320 * If the scan has been forced (and the driver supports 2321 * forcing), don't care about being beaconing already. 2322 * This will create problems to the attached stations (e.g. all 2323 * the frames sent while scanning on other channel will be 2324 * lost) 2325 */ 2326 if (sdata->u.ap.beacon && 2327 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || 2328 !(req->flags & NL80211_SCAN_FLAG_AP))) 2329 return -EOPNOTSUPP; 2330 break; 2331 case NL80211_IFTYPE_NAN: 2332 default: 2333 return -EOPNOTSUPP; 2334 } 2335 2336 return ieee80211_request_scan(sdata, req); 2337 } 2338 2339 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev) 2340 { 2341 ieee80211_scan_cancel(wiphy_priv(wiphy)); 2342 } 2343 2344 static int 2345 ieee80211_sched_scan_start(struct wiphy *wiphy, 2346 struct net_device *dev, 2347 struct cfg80211_sched_scan_request *req) 2348 { 2349 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2350 2351 if (!sdata->local->ops->sched_scan_start) 2352 return -EOPNOTSUPP; 2353 2354 return ieee80211_request_sched_scan_start(sdata, req); 2355 } 2356 2357 static int 2358 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev, 2359 u64 reqid) 2360 { 2361 struct ieee80211_local *local = wiphy_priv(wiphy); 2362 2363 if (!local->ops->sched_scan_stop) 2364 return -EOPNOTSUPP; 2365 2366 return ieee80211_request_sched_scan_stop(local); 2367 } 2368 2369 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 2370 struct cfg80211_auth_request *req) 2371 { 2372 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2373 } 2374 2375 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 2376 struct cfg80211_assoc_request *req) 2377 { 2378 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2379 } 2380 2381 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 2382 struct cfg80211_deauth_request *req) 2383 { 2384 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); 2385 } 2386 2387 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 2388 struct cfg80211_disassoc_request *req) 2389 { 2390 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 2391 } 2392 2393 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2394 struct cfg80211_ibss_params *params) 2395 { 2396 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); 2397 } 2398 2399 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2400 { 2401 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2402 } 2403 2404 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev, 2405 struct ocb_setup *setup) 2406 { 2407 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup); 2408 } 2409 2410 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev) 2411 { 2412 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev)); 2413 } 2414 2415 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, 2416 int rate[NUM_NL80211_BANDS]) 2417 { 2418 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2419 2420 memcpy(sdata->vif.bss_conf.mcast_rate, rate, 2421 sizeof(int) * NUM_NL80211_BANDS); 2422 2423 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE); 2424 2425 return 0; 2426 } 2427 2428 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 2429 { 2430 struct ieee80211_local *local = wiphy_priv(wiphy); 2431 int err; 2432 2433 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 2434 ieee80211_check_fast_xmit_all(local); 2435 2436 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 2437 2438 if (err) { 2439 ieee80211_check_fast_xmit_all(local); 2440 return err; 2441 } 2442 } 2443 2444 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) || 2445 (changed & WIPHY_PARAM_DYN_ACK)) { 2446 s16 coverage_class; 2447 2448 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ? 2449 wiphy->coverage_class : -1; 2450 err = drv_set_coverage_class(local, coverage_class); 2451 2452 if (err) 2453 return err; 2454 } 2455 2456 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 2457 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 2458 2459 if (err) 2460 return err; 2461 } 2462 2463 if (changed & WIPHY_PARAM_RETRY_SHORT) { 2464 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) 2465 return -EINVAL; 2466 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 2467 } 2468 if (changed & WIPHY_PARAM_RETRY_LONG) { 2469 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) 2470 return -EINVAL; 2471 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 2472 } 2473 if (changed & 2474 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 2475 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 2476 2477 if (changed & (WIPHY_PARAM_TXQ_LIMIT | 2478 WIPHY_PARAM_TXQ_MEMORY_LIMIT | 2479 WIPHY_PARAM_TXQ_QUANTUM)) 2480 ieee80211_txq_set_params(local); 2481 2482 return 0; 2483 } 2484 2485 static int ieee80211_set_tx_power(struct wiphy *wiphy, 2486 struct wireless_dev *wdev, 2487 enum nl80211_tx_power_setting type, int mbm) 2488 { 2489 struct ieee80211_local *local = wiphy_priv(wiphy); 2490 struct ieee80211_sub_if_data *sdata; 2491 enum nl80211_tx_power_setting txp_type = type; 2492 bool update_txp_type = false; 2493 bool has_monitor = false; 2494 2495 if (wdev) { 2496 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2497 2498 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2499 sdata = rtnl_dereference(local->monitor_sdata); 2500 if (!sdata) 2501 return -EOPNOTSUPP; 2502 } 2503 2504 switch (type) { 2505 case NL80211_TX_POWER_AUTOMATIC: 2506 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2507 txp_type = NL80211_TX_POWER_LIMITED; 2508 break; 2509 case NL80211_TX_POWER_LIMITED: 2510 case NL80211_TX_POWER_FIXED: 2511 if (mbm < 0 || (mbm % 100)) 2512 return -EOPNOTSUPP; 2513 sdata->user_power_level = MBM_TO_DBM(mbm); 2514 break; 2515 } 2516 2517 if (txp_type != sdata->vif.bss_conf.txpower_type) { 2518 update_txp_type = true; 2519 sdata->vif.bss_conf.txpower_type = txp_type; 2520 } 2521 2522 ieee80211_recalc_txpower(sdata, update_txp_type); 2523 2524 return 0; 2525 } 2526 2527 switch (type) { 2528 case NL80211_TX_POWER_AUTOMATIC: 2529 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; 2530 txp_type = NL80211_TX_POWER_LIMITED; 2531 break; 2532 case NL80211_TX_POWER_LIMITED: 2533 case NL80211_TX_POWER_FIXED: 2534 if (mbm < 0 || (mbm % 100)) 2535 return -EOPNOTSUPP; 2536 local->user_power_level = MBM_TO_DBM(mbm); 2537 break; 2538 } 2539 2540 mutex_lock(&local->iflist_mtx); 2541 list_for_each_entry(sdata, &local->interfaces, list) { 2542 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) { 2543 has_monitor = true; 2544 continue; 2545 } 2546 sdata->user_power_level = local->user_power_level; 2547 if (txp_type != sdata->vif.bss_conf.txpower_type) 2548 update_txp_type = true; 2549 sdata->vif.bss_conf.txpower_type = txp_type; 2550 } 2551 list_for_each_entry(sdata, &local->interfaces, list) { 2552 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) 2553 continue; 2554 ieee80211_recalc_txpower(sdata, update_txp_type); 2555 } 2556 mutex_unlock(&local->iflist_mtx); 2557 2558 if (has_monitor) { 2559 sdata = rtnl_dereference(local->monitor_sdata); 2560 if (sdata) { 2561 sdata->user_power_level = local->user_power_level; 2562 if (txp_type != sdata->vif.bss_conf.txpower_type) 2563 update_txp_type = true; 2564 sdata->vif.bss_conf.txpower_type = txp_type; 2565 2566 ieee80211_recalc_txpower(sdata, update_txp_type); 2567 } 2568 } 2569 2570 return 0; 2571 } 2572 2573 static int ieee80211_get_tx_power(struct wiphy *wiphy, 2574 struct wireless_dev *wdev, 2575 int *dbm) 2576 { 2577 struct ieee80211_local *local = wiphy_priv(wiphy); 2578 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2579 2580 if (local->ops->get_txpower) 2581 return drv_get_txpower(local, sdata, dbm); 2582 2583 if (!local->use_chanctx) 2584 *dbm = local->hw.conf.power_level; 2585 else 2586 *dbm = sdata->vif.bss_conf.txpower; 2587 2588 return 0; 2589 } 2590 2591 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 2592 const u8 *addr) 2593 { 2594 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2595 2596 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 2597 2598 return 0; 2599 } 2600 2601 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 2602 { 2603 struct ieee80211_local *local = wiphy_priv(wiphy); 2604 2605 drv_rfkill_poll(local); 2606 } 2607 2608 #ifdef CONFIG_NL80211_TESTMODE 2609 static int ieee80211_testmode_cmd(struct wiphy *wiphy, 2610 struct wireless_dev *wdev, 2611 void *data, int len) 2612 { 2613 struct ieee80211_local *local = wiphy_priv(wiphy); 2614 struct ieee80211_vif *vif = NULL; 2615 2616 if (!local->ops->testmode_cmd) 2617 return -EOPNOTSUPP; 2618 2619 if (wdev) { 2620 struct ieee80211_sub_if_data *sdata; 2621 2622 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 2623 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) 2624 vif = &sdata->vif; 2625 } 2626 2627 return local->ops->testmode_cmd(&local->hw, vif, data, len); 2628 } 2629 2630 static int ieee80211_testmode_dump(struct wiphy *wiphy, 2631 struct sk_buff *skb, 2632 struct netlink_callback *cb, 2633 void *data, int len) 2634 { 2635 struct ieee80211_local *local = wiphy_priv(wiphy); 2636 2637 if (!local->ops->testmode_dump) 2638 return -EOPNOTSUPP; 2639 2640 return local->ops->testmode_dump(&local->hw, skb, cb, data, len); 2641 } 2642 #endif 2643 2644 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, 2645 enum ieee80211_smps_mode smps_mode) 2646 { 2647 struct sta_info *sta; 2648 enum ieee80211_smps_mode old_req; 2649 2650 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) 2651 return -EINVAL; 2652 2653 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2654 return 0; 2655 2656 old_req = sdata->u.ap.req_smps; 2657 sdata->u.ap.req_smps = smps_mode; 2658 2659 /* AUTOMATIC doesn't mean much for AP - don't allow it */ 2660 if (old_req == smps_mode || 2661 smps_mode == IEEE80211_SMPS_AUTOMATIC) 2662 return 0; 2663 2664 ht_dbg(sdata, 2665 "SMPS %d requested in AP mode, sending Action frame to %d stations\n", 2666 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); 2667 2668 mutex_lock(&sdata->local->sta_mtx); 2669 list_for_each_entry(sta, &sdata->local->sta_list, list) { 2670 /* 2671 * Only stations associated to our AP and 2672 * associated VLANs 2673 */ 2674 if (sta->sdata->bss != &sdata->u.ap) 2675 continue; 2676 2677 /* This station doesn't support MIMO - skip it */ 2678 if (sta_info_tx_streams(sta) == 1) 2679 continue; 2680 2681 /* 2682 * Don't wake up a STA just to send the action frame 2683 * unless we are getting more restrictive. 2684 */ 2685 if (test_sta_flag(sta, WLAN_STA_PS_STA) && 2686 !ieee80211_smps_is_restrictive(sta->known_smps_mode, 2687 smps_mode)) { 2688 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n", 2689 sta->sta.addr); 2690 continue; 2691 } 2692 2693 /* 2694 * If the STA is not authorized, wait until it gets 2695 * authorized and the action frame will be sent then. 2696 */ 2697 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2698 continue; 2699 2700 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); 2701 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr, 2702 sdata->vif.bss_conf.bssid); 2703 } 2704 mutex_unlock(&sdata->local->sta_mtx); 2705 2706 sdata->smps_mode = smps_mode; 2707 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); 2708 2709 return 0; 2710 } 2711 2712 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, 2713 enum ieee80211_smps_mode smps_mode) 2714 { 2715 const u8 *ap; 2716 enum ieee80211_smps_mode old_req; 2717 int err; 2718 struct sta_info *sta; 2719 bool tdls_peer_found = false; 2720 2721 lockdep_assert_held(&sdata->wdev.mtx); 2722 2723 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) 2724 return -EINVAL; 2725 2726 old_req = sdata->u.mgd.req_smps; 2727 sdata->u.mgd.req_smps = smps_mode; 2728 2729 if (old_req == smps_mode && 2730 smps_mode != IEEE80211_SMPS_AUTOMATIC) 2731 return 0; 2732 2733 /* 2734 * If not associated, or current association is not an HT 2735 * association, there's no need to do anything, just store 2736 * the new value until we associate. 2737 */ 2738 if (!sdata->u.mgd.associated || 2739 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) 2740 return 0; 2741 2742 ap = sdata->u.mgd.associated->bssid; 2743 2744 rcu_read_lock(); 2745 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) { 2746 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded || 2747 !test_sta_flag(sta, WLAN_STA_AUTHORIZED)) 2748 continue; 2749 2750 tdls_peer_found = true; 2751 break; 2752 } 2753 rcu_read_unlock(); 2754 2755 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 2756 if (tdls_peer_found || !sdata->u.mgd.powersave) 2757 smps_mode = IEEE80211_SMPS_OFF; 2758 else 2759 smps_mode = IEEE80211_SMPS_DYNAMIC; 2760 } 2761 2762 /* send SM PS frame to AP */ 2763 err = ieee80211_send_smps_action(sdata, smps_mode, 2764 ap, ap); 2765 if (err) 2766 sdata->u.mgd.req_smps = old_req; 2767 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found) 2768 ieee80211_teardown_tdls_peers(sdata); 2769 2770 return err; 2771 } 2772 2773 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 2774 bool enabled, int timeout) 2775 { 2776 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2777 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2778 2779 if (sdata->vif.type != NL80211_IFTYPE_STATION) 2780 return -EOPNOTSUPP; 2781 2782 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) 2783 return -EOPNOTSUPP; 2784 2785 if (enabled == sdata->u.mgd.powersave && 2786 timeout == local->dynamic_ps_forced_timeout) 2787 return 0; 2788 2789 sdata->u.mgd.powersave = enabled; 2790 local->dynamic_ps_forced_timeout = timeout; 2791 2792 /* no change, but if automatic follow powersave */ 2793 sdata_lock(sdata); 2794 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); 2795 sdata_unlock(sdata); 2796 2797 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) 2798 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 2799 2800 ieee80211_recalc_ps(local); 2801 ieee80211_recalc_ps_vif(sdata); 2802 ieee80211_check_fast_rx_iface(sdata); 2803 2804 return 0; 2805 } 2806 2807 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 2808 struct net_device *dev, 2809 s32 rssi_thold, u32 rssi_hyst) 2810 { 2811 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2812 struct ieee80211_vif *vif = &sdata->vif; 2813 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2814 2815 if (rssi_thold == bss_conf->cqm_rssi_thold && 2816 rssi_hyst == bss_conf->cqm_rssi_hyst) 2817 return 0; 2818 2819 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER && 2820 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) 2821 return -EOPNOTSUPP; 2822 2823 bss_conf->cqm_rssi_thold = rssi_thold; 2824 bss_conf->cqm_rssi_hyst = rssi_hyst; 2825 bss_conf->cqm_rssi_low = 0; 2826 bss_conf->cqm_rssi_high = 0; 2827 sdata->u.mgd.last_cqm_event_signal = 0; 2828 2829 /* tell the driver upon association, unless already associated */ 2830 if (sdata->u.mgd.associated && 2831 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2832 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2833 2834 return 0; 2835 } 2836 2837 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy, 2838 struct net_device *dev, 2839 s32 rssi_low, s32 rssi_high) 2840 { 2841 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2842 struct ieee80211_vif *vif = &sdata->vif; 2843 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 2844 2845 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) 2846 return -EOPNOTSUPP; 2847 2848 bss_conf->cqm_rssi_low = rssi_low; 2849 bss_conf->cqm_rssi_high = rssi_high; 2850 bss_conf->cqm_rssi_thold = 0; 2851 bss_conf->cqm_rssi_hyst = 0; 2852 sdata->u.mgd.last_cqm_event_signal = 0; 2853 2854 /* tell the driver upon association, unless already associated */ 2855 if (sdata->u.mgd.associated && 2856 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) 2857 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 2858 2859 return 0; 2860 } 2861 2862 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 2863 struct net_device *dev, 2864 const u8 *addr, 2865 const struct cfg80211_bitrate_mask *mask) 2866 { 2867 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2868 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 2869 int i, ret; 2870 2871 if (!ieee80211_sdata_running(sdata)) 2872 return -ENETDOWN; 2873 2874 /* 2875 * If active validate the setting and reject it if it doesn't leave 2876 * at least one basic rate usable, since we really have to be able 2877 * to send something, and if we're an AP we have to be able to do 2878 * so at a basic rate so that all clients can receive it. 2879 */ 2880 if (rcu_access_pointer(sdata->vif.chanctx_conf) && 2881 sdata->vif.bss_conf.chandef.chan) { 2882 u32 basic_rates = sdata->vif.bss_conf.basic_rates; 2883 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band; 2884 2885 if (!(mask->control[band].legacy & basic_rates)) 2886 return -EINVAL; 2887 } 2888 2889 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) { 2890 ret = drv_set_bitrate_mask(local, sdata, mask); 2891 if (ret) 2892 return ret; 2893 } 2894 2895 for (i = 0; i < NUM_NL80211_BANDS; i++) { 2896 struct ieee80211_supported_band *sband = wiphy->bands[i]; 2897 int j; 2898 2899 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 2900 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, 2901 sizeof(mask->control[i].ht_mcs)); 2902 memcpy(sdata->rc_rateidx_vht_mcs_mask[i], 2903 mask->control[i].vht_mcs, 2904 sizeof(mask->control[i].vht_mcs)); 2905 2906 sdata->rc_has_mcs_mask[i] = false; 2907 sdata->rc_has_vht_mcs_mask[i] = false; 2908 if (!sband) 2909 continue; 2910 2911 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) { 2912 if (~sdata->rc_rateidx_mcs_mask[i][j]) { 2913 sdata->rc_has_mcs_mask[i] = true; 2914 break; 2915 } 2916 } 2917 2918 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) { 2919 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) { 2920 sdata->rc_has_vht_mcs_mask[i] = true; 2921 break; 2922 } 2923 } 2924 } 2925 2926 return 0; 2927 } 2928 2929 static int ieee80211_start_radar_detection(struct wiphy *wiphy, 2930 struct net_device *dev, 2931 struct cfg80211_chan_def *chandef, 2932 u32 cac_time_ms) 2933 { 2934 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 2935 struct ieee80211_local *local = sdata->local; 2936 int err; 2937 2938 mutex_lock(&local->mtx); 2939 if (!list_empty(&local->roc_list) || local->scanning) { 2940 err = -EBUSY; 2941 goto out_unlock; 2942 } 2943 2944 /* whatever, but channel contexts should not complain about that one */ 2945 sdata->smps_mode = IEEE80211_SMPS_OFF; 2946 sdata->needed_rx_chains = local->rx_chains; 2947 2948 err = ieee80211_vif_use_channel(sdata, chandef, 2949 IEEE80211_CHANCTX_SHARED); 2950 if (err) 2951 goto out_unlock; 2952 2953 ieee80211_queue_delayed_work(&sdata->local->hw, 2954 &sdata->dfs_cac_timer_work, 2955 msecs_to_jiffies(cac_time_ms)); 2956 2957 out_unlock: 2958 mutex_unlock(&local->mtx); 2959 return err; 2960 } 2961 2962 static struct cfg80211_beacon_data * 2963 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) 2964 { 2965 struct cfg80211_beacon_data *new_beacon; 2966 u8 *pos; 2967 int len; 2968 2969 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + 2970 beacon->proberesp_ies_len + beacon->assocresp_ies_len + 2971 beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len; 2972 2973 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); 2974 if (!new_beacon) 2975 return NULL; 2976 2977 pos = (u8 *)(new_beacon + 1); 2978 if (beacon->head_len) { 2979 new_beacon->head_len = beacon->head_len; 2980 new_beacon->head = pos; 2981 memcpy(pos, beacon->head, beacon->head_len); 2982 pos += beacon->head_len; 2983 } 2984 if (beacon->tail_len) { 2985 new_beacon->tail_len = beacon->tail_len; 2986 new_beacon->tail = pos; 2987 memcpy(pos, beacon->tail, beacon->tail_len); 2988 pos += beacon->tail_len; 2989 } 2990 if (beacon->beacon_ies_len) { 2991 new_beacon->beacon_ies_len = beacon->beacon_ies_len; 2992 new_beacon->beacon_ies = pos; 2993 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); 2994 pos += beacon->beacon_ies_len; 2995 } 2996 if (beacon->proberesp_ies_len) { 2997 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; 2998 new_beacon->proberesp_ies = pos; 2999 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); 3000 pos += beacon->proberesp_ies_len; 3001 } 3002 if (beacon->assocresp_ies_len) { 3003 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; 3004 new_beacon->assocresp_ies = pos; 3005 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); 3006 pos += beacon->assocresp_ies_len; 3007 } 3008 if (beacon->probe_resp_len) { 3009 new_beacon->probe_resp_len = beacon->probe_resp_len; 3010 new_beacon->probe_resp = pos; 3011 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); 3012 pos += beacon->probe_resp_len; 3013 } 3014 3015 /* might copy -1, meaning no changes requested */ 3016 new_beacon->ftm_responder = beacon->ftm_responder; 3017 if (beacon->lci) { 3018 new_beacon->lci_len = beacon->lci_len; 3019 new_beacon->lci = pos; 3020 memcpy(pos, beacon->lci, beacon->lci_len); 3021 pos += beacon->lci_len; 3022 } 3023 if (beacon->civicloc) { 3024 new_beacon->civicloc_len = beacon->civicloc_len; 3025 new_beacon->civicloc = pos; 3026 memcpy(pos, beacon->civicloc, beacon->civicloc_len); 3027 pos += beacon->civicloc_len; 3028 } 3029 3030 return new_beacon; 3031 } 3032 3033 void ieee80211_csa_finish(struct ieee80211_vif *vif) 3034 { 3035 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3036 3037 ieee80211_queue_work(&sdata->local->hw, 3038 &sdata->csa_finalize_work); 3039 } 3040 EXPORT_SYMBOL(ieee80211_csa_finish); 3041 3042 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata, 3043 u32 *changed) 3044 { 3045 int err; 3046 3047 switch (sdata->vif.type) { 3048 case NL80211_IFTYPE_AP: 3049 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon, 3050 NULL); 3051 kfree(sdata->u.ap.next_beacon); 3052 sdata->u.ap.next_beacon = NULL; 3053 3054 if (err < 0) 3055 return err; 3056 *changed |= err; 3057 break; 3058 case NL80211_IFTYPE_ADHOC: 3059 err = ieee80211_ibss_finish_csa(sdata); 3060 if (err < 0) 3061 return err; 3062 *changed |= err; 3063 break; 3064 #ifdef CONFIG_MAC80211_MESH 3065 case NL80211_IFTYPE_MESH_POINT: 3066 err = ieee80211_mesh_finish_csa(sdata); 3067 if (err < 0) 3068 return err; 3069 *changed |= err; 3070 break; 3071 #endif 3072 default: 3073 WARN_ON(1); 3074 return -EINVAL; 3075 } 3076 3077 return 0; 3078 } 3079 3080 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3081 { 3082 struct ieee80211_local *local = sdata->local; 3083 u32 changed = 0; 3084 int err; 3085 3086 sdata_assert_lock(sdata); 3087 lockdep_assert_held(&local->mtx); 3088 lockdep_assert_held(&local->chanctx_mtx); 3089 3090 /* 3091 * using reservation isn't immediate as it may be deferred until later 3092 * with multi-vif. once reservation is complete it will re-schedule the 3093 * work with no reserved_chanctx so verify chandef to check if it 3094 * completed successfully 3095 */ 3096 3097 if (sdata->reserved_chanctx) { 3098 /* 3099 * with multi-vif csa driver may call ieee80211_csa_finish() 3100 * many times while waiting for other interfaces to use their 3101 * reservations 3102 */ 3103 if (sdata->reserved_ready) 3104 return 0; 3105 3106 return ieee80211_vif_use_reserved_context(sdata); 3107 } 3108 3109 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, 3110 &sdata->csa_chandef)) 3111 return -EINVAL; 3112 3113 sdata->vif.csa_active = false; 3114 3115 err = ieee80211_set_after_csa_beacon(sdata, &changed); 3116 if (err) 3117 return err; 3118 3119 ieee80211_bss_info_change_notify(sdata, changed); 3120 3121 if (sdata->csa_block_tx) { 3122 ieee80211_wake_vif_queues(local, sdata, 3123 IEEE80211_QUEUE_STOP_REASON_CSA); 3124 sdata->csa_block_tx = false; 3125 } 3126 3127 err = drv_post_channel_switch(sdata); 3128 if (err) 3129 return err; 3130 3131 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); 3132 3133 return 0; 3134 } 3135 3136 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) 3137 { 3138 if (__ieee80211_csa_finalize(sdata)) { 3139 sdata_info(sdata, "failed to finalize CSA, disconnecting\n"); 3140 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev, 3141 GFP_KERNEL); 3142 } 3143 } 3144 3145 void ieee80211_csa_finalize_work(struct work_struct *work) 3146 { 3147 struct ieee80211_sub_if_data *sdata = 3148 container_of(work, struct ieee80211_sub_if_data, 3149 csa_finalize_work); 3150 struct ieee80211_local *local = sdata->local; 3151 3152 sdata_lock(sdata); 3153 mutex_lock(&local->mtx); 3154 mutex_lock(&local->chanctx_mtx); 3155 3156 /* AP might have been stopped while waiting for the lock. */ 3157 if (!sdata->vif.csa_active) 3158 goto unlock; 3159 3160 if (!ieee80211_sdata_running(sdata)) 3161 goto unlock; 3162 3163 ieee80211_csa_finalize(sdata); 3164 3165 unlock: 3166 mutex_unlock(&local->chanctx_mtx); 3167 mutex_unlock(&local->mtx); 3168 sdata_unlock(sdata); 3169 } 3170 3171 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, 3172 struct cfg80211_csa_settings *params, 3173 u32 *changed) 3174 { 3175 struct ieee80211_csa_settings csa = {}; 3176 int err; 3177 3178 switch (sdata->vif.type) { 3179 case NL80211_IFTYPE_AP: 3180 sdata->u.ap.next_beacon = 3181 cfg80211_beacon_dup(¶ms->beacon_after); 3182 if (!sdata->u.ap.next_beacon) 3183 return -ENOMEM; 3184 3185 /* 3186 * With a count of 0, we don't have to wait for any 3187 * TBTT before switching, so complete the CSA 3188 * immediately. In theory, with a count == 1 we 3189 * should delay the switch until just before the next 3190 * TBTT, but that would complicate things so we switch 3191 * immediately too. If we would delay the switch 3192 * until the next TBTT, we would have to set the probe 3193 * response here. 3194 * 3195 * TODO: A channel switch with count <= 1 without 3196 * sending a CSA action frame is kind of useless, 3197 * because the clients won't know we're changing 3198 * channels. The action frame must be implemented 3199 * either here or in the userspace. 3200 */ 3201 if (params->count <= 1) 3202 break; 3203 3204 if ((params->n_counter_offsets_beacon > 3205 IEEE80211_MAX_CSA_COUNTERS_NUM) || 3206 (params->n_counter_offsets_presp > 3207 IEEE80211_MAX_CSA_COUNTERS_NUM)) 3208 return -EINVAL; 3209 3210 csa.counter_offsets_beacon = params->counter_offsets_beacon; 3211 csa.counter_offsets_presp = params->counter_offsets_presp; 3212 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon; 3213 csa.n_counter_offsets_presp = params->n_counter_offsets_presp; 3214 csa.count = params->count; 3215 3216 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa); 3217 if (err < 0) { 3218 kfree(sdata->u.ap.next_beacon); 3219 return err; 3220 } 3221 *changed |= err; 3222 3223 break; 3224 case NL80211_IFTYPE_ADHOC: 3225 if (!sdata->vif.bss_conf.ibss_joined) 3226 return -EINVAL; 3227 3228 if (params->chandef.width != sdata->u.ibss.chandef.width) 3229 return -EINVAL; 3230 3231 switch (params->chandef.width) { 3232 case NL80211_CHAN_WIDTH_40: 3233 if (cfg80211_get_chandef_type(¶ms->chandef) != 3234 cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) 3235 return -EINVAL; 3236 case NL80211_CHAN_WIDTH_5: 3237 case NL80211_CHAN_WIDTH_10: 3238 case NL80211_CHAN_WIDTH_20_NOHT: 3239 case NL80211_CHAN_WIDTH_20: 3240 break; 3241 default: 3242 return -EINVAL; 3243 } 3244 3245 /* changes into another band are not supported */ 3246 if (sdata->u.ibss.chandef.chan->band != 3247 params->chandef.chan->band) 3248 return -EINVAL; 3249 3250 /* see comments in the NL80211_IFTYPE_AP block */ 3251 if (params->count > 1) { 3252 err = ieee80211_ibss_csa_beacon(sdata, params); 3253 if (err < 0) 3254 return err; 3255 *changed |= err; 3256 } 3257 3258 ieee80211_send_action_csa(sdata, params); 3259 3260 break; 3261 #ifdef CONFIG_MAC80211_MESH 3262 case NL80211_IFTYPE_MESH_POINT: { 3263 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 3264 3265 if (params->chandef.width != sdata->vif.bss_conf.chandef.width) 3266 return -EINVAL; 3267 3268 /* changes into another band are not supported */ 3269 if (sdata->vif.bss_conf.chandef.chan->band != 3270 params->chandef.chan->band) 3271 return -EINVAL; 3272 3273 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { 3274 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; 3275 if (!ifmsh->pre_value) 3276 ifmsh->pre_value = 1; 3277 else 3278 ifmsh->pre_value++; 3279 } 3280 3281 /* see comments in the NL80211_IFTYPE_AP block */ 3282 if (params->count > 1) { 3283 err = ieee80211_mesh_csa_beacon(sdata, params); 3284 if (err < 0) { 3285 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; 3286 return err; 3287 } 3288 *changed |= err; 3289 } 3290 3291 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) 3292 ieee80211_send_action_csa(sdata, params); 3293 3294 break; 3295 } 3296 #endif 3297 default: 3298 return -EOPNOTSUPP; 3299 } 3300 3301 return 0; 3302 } 3303 3304 static int 3305 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3306 struct cfg80211_csa_settings *params) 3307 { 3308 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3309 struct ieee80211_local *local = sdata->local; 3310 struct ieee80211_channel_switch ch_switch; 3311 struct ieee80211_chanctx_conf *conf; 3312 struct ieee80211_chanctx *chanctx; 3313 u32 changed = 0; 3314 int err; 3315 3316 sdata_assert_lock(sdata); 3317 lockdep_assert_held(&local->mtx); 3318 3319 if (!list_empty(&local->roc_list) || local->scanning) 3320 return -EBUSY; 3321 3322 if (sdata->wdev.cac_started) 3323 return -EBUSY; 3324 3325 if (cfg80211_chandef_identical(¶ms->chandef, 3326 &sdata->vif.bss_conf.chandef)) 3327 return -EINVAL; 3328 3329 /* don't allow another channel switch if one is already active. */ 3330 if (sdata->vif.csa_active) 3331 return -EBUSY; 3332 3333 mutex_lock(&local->chanctx_mtx); 3334 conf = rcu_dereference_protected(sdata->vif.chanctx_conf, 3335 lockdep_is_held(&local->chanctx_mtx)); 3336 if (!conf) { 3337 err = -EBUSY; 3338 goto out; 3339 } 3340 3341 chanctx = container_of(conf, struct ieee80211_chanctx, conf); 3342 3343 ch_switch.timestamp = 0; 3344 ch_switch.device_timestamp = 0; 3345 ch_switch.block_tx = params->block_tx; 3346 ch_switch.chandef = params->chandef; 3347 ch_switch.count = params->count; 3348 3349 err = drv_pre_channel_switch(sdata, &ch_switch); 3350 if (err) 3351 goto out; 3352 3353 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef, 3354 chanctx->mode, 3355 params->radar_required); 3356 if (err) 3357 goto out; 3358 3359 /* if reservation is invalid then this will fail */ 3360 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0); 3361 if (err) { 3362 ieee80211_vif_unreserve_chanctx(sdata); 3363 goto out; 3364 } 3365 3366 err = ieee80211_set_csa_beacon(sdata, params, &changed); 3367 if (err) { 3368 ieee80211_vif_unreserve_chanctx(sdata); 3369 goto out; 3370 } 3371 3372 sdata->csa_chandef = params->chandef; 3373 sdata->csa_block_tx = params->block_tx; 3374 sdata->vif.csa_active = true; 3375 3376 if (sdata->csa_block_tx) 3377 ieee80211_stop_vif_queues(local, sdata, 3378 IEEE80211_QUEUE_STOP_REASON_CSA); 3379 3380 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef, 3381 params->count); 3382 3383 if (changed) { 3384 ieee80211_bss_info_change_notify(sdata, changed); 3385 drv_channel_switch_beacon(sdata, ¶ms->chandef); 3386 } else { 3387 /* if the beacon didn't change, we can finalize immediately */ 3388 ieee80211_csa_finalize(sdata); 3389 } 3390 3391 out: 3392 mutex_unlock(&local->chanctx_mtx); 3393 return err; 3394 } 3395 3396 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3397 struct cfg80211_csa_settings *params) 3398 { 3399 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3400 struct ieee80211_local *local = sdata->local; 3401 int err; 3402 3403 mutex_lock(&local->mtx); 3404 err = __ieee80211_channel_switch(wiphy, dev, params); 3405 mutex_unlock(&local->mtx); 3406 3407 return err; 3408 } 3409 3410 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local) 3411 { 3412 lockdep_assert_held(&local->mtx); 3413 3414 local->roc_cookie_counter++; 3415 3416 /* wow, you wrapped 64 bits ... more likely a bug */ 3417 if (WARN_ON(local->roc_cookie_counter == 0)) 3418 local->roc_cookie_counter++; 3419 3420 return local->roc_cookie_counter; 3421 } 3422 3423 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb, 3424 u64 *cookie, gfp_t gfp) 3425 { 3426 unsigned long spin_flags; 3427 struct sk_buff *ack_skb; 3428 int id; 3429 3430 ack_skb = skb_copy(skb, gfp); 3431 if (!ack_skb) 3432 return -ENOMEM; 3433 3434 spin_lock_irqsave(&local->ack_status_lock, spin_flags); 3435 id = idr_alloc(&local->ack_status_frames, ack_skb, 3436 1, 0x10000, GFP_ATOMIC); 3437 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags); 3438 3439 if (id < 0) { 3440 kfree_skb(ack_skb); 3441 return -ENOMEM; 3442 } 3443 3444 IEEE80211_SKB_CB(skb)->ack_frame_id = id; 3445 3446 *cookie = ieee80211_mgmt_tx_cookie(local); 3447 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie; 3448 3449 return 0; 3450 } 3451 3452 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 3453 struct wireless_dev *wdev, 3454 u16 frame_type, bool reg) 3455 { 3456 struct ieee80211_local *local = wiphy_priv(wiphy); 3457 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3458 3459 switch (frame_type) { 3460 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: 3461 if (reg) { 3462 local->probe_req_reg++; 3463 sdata->vif.probe_req_reg++; 3464 } else { 3465 if (local->probe_req_reg) 3466 local->probe_req_reg--; 3467 3468 if (sdata->vif.probe_req_reg) 3469 sdata->vif.probe_req_reg--; 3470 } 3471 3472 if (!local->open_count) 3473 break; 3474 3475 if (sdata->vif.probe_req_reg == 1) 3476 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ, 3477 FIF_PROBE_REQ); 3478 else if (sdata->vif.probe_req_reg == 0) 3479 drv_config_iface_filter(local, sdata, 0, 3480 FIF_PROBE_REQ); 3481 3482 ieee80211_configure_filter(local); 3483 break; 3484 default: 3485 break; 3486 } 3487 } 3488 3489 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 3490 { 3491 struct ieee80211_local *local = wiphy_priv(wiphy); 3492 3493 if (local->started) 3494 return -EOPNOTSUPP; 3495 3496 return drv_set_antenna(local, tx_ant, rx_ant); 3497 } 3498 3499 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 3500 { 3501 struct ieee80211_local *local = wiphy_priv(wiphy); 3502 3503 return drv_get_antenna(local, tx_ant, rx_ant); 3504 } 3505 3506 static int ieee80211_set_rekey_data(struct wiphy *wiphy, 3507 struct net_device *dev, 3508 struct cfg80211_gtk_rekey_data *data) 3509 { 3510 struct ieee80211_local *local = wiphy_priv(wiphy); 3511 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3512 3513 if (!local->ops->set_rekey_data) 3514 return -EOPNOTSUPP; 3515 3516 drv_set_rekey_data(local, sdata, data); 3517 3518 return 0; 3519 } 3520 3521 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, 3522 const u8 *peer, u64 *cookie) 3523 { 3524 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3525 struct ieee80211_local *local = sdata->local; 3526 struct ieee80211_qos_hdr *nullfunc; 3527 struct sk_buff *skb; 3528 int size = sizeof(*nullfunc); 3529 __le16 fc; 3530 bool qos; 3531 struct ieee80211_tx_info *info; 3532 struct sta_info *sta; 3533 struct ieee80211_chanctx_conf *chanctx_conf; 3534 enum nl80211_band band; 3535 int ret; 3536 3537 /* the lock is needed to assign the cookie later */ 3538 mutex_lock(&local->mtx); 3539 3540 rcu_read_lock(); 3541 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3542 if (WARN_ON(!chanctx_conf)) { 3543 ret = -EINVAL; 3544 goto unlock; 3545 } 3546 band = chanctx_conf->def.chan->band; 3547 sta = sta_info_get_bss(sdata, peer); 3548 if (sta) { 3549 qos = sta->sta.wme; 3550 } else { 3551 ret = -ENOLINK; 3552 goto unlock; 3553 } 3554 3555 if (qos) { 3556 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3557 IEEE80211_STYPE_QOS_NULLFUNC | 3558 IEEE80211_FCTL_FROMDS); 3559 } else { 3560 size -= 2; 3561 fc = cpu_to_le16(IEEE80211_FTYPE_DATA | 3562 IEEE80211_STYPE_NULLFUNC | 3563 IEEE80211_FCTL_FROMDS); 3564 } 3565 3566 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); 3567 if (!skb) { 3568 ret = -ENOMEM; 3569 goto unlock; 3570 } 3571 3572 skb->dev = dev; 3573 3574 skb_reserve(skb, local->hw.extra_tx_headroom); 3575 3576 nullfunc = skb_put(skb, size); 3577 nullfunc->frame_control = fc; 3578 nullfunc->duration_id = 0; 3579 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); 3580 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); 3581 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); 3582 nullfunc->seq_ctrl = 0; 3583 3584 info = IEEE80211_SKB_CB(skb); 3585 3586 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | 3587 IEEE80211_TX_INTFL_NL80211_FRAME_TX; 3588 info->band = band; 3589 3590 skb_set_queue_mapping(skb, IEEE80211_AC_VO); 3591 skb->priority = 7; 3592 if (qos) 3593 nullfunc->qos_ctrl = cpu_to_le16(7); 3594 3595 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC); 3596 if (ret) { 3597 kfree_skb(skb); 3598 goto unlock; 3599 } 3600 3601 local_bh_disable(); 3602 ieee80211_xmit(sdata, sta, skb, 0); 3603 local_bh_enable(); 3604 3605 ret = 0; 3606 unlock: 3607 rcu_read_unlock(); 3608 mutex_unlock(&local->mtx); 3609 3610 return ret; 3611 } 3612 3613 static int ieee80211_cfg_get_channel(struct wiphy *wiphy, 3614 struct wireless_dev *wdev, 3615 struct cfg80211_chan_def *chandef) 3616 { 3617 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3618 struct ieee80211_local *local = wiphy_priv(wiphy); 3619 struct ieee80211_chanctx_conf *chanctx_conf; 3620 int ret = -ENODATA; 3621 3622 rcu_read_lock(); 3623 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); 3624 if (chanctx_conf) { 3625 *chandef = sdata->vif.bss_conf.chandef; 3626 ret = 0; 3627 } else if (local->open_count > 0 && 3628 local->open_count == local->monitors && 3629 sdata->vif.type == NL80211_IFTYPE_MONITOR) { 3630 if (local->use_chanctx) 3631 *chandef = local->monitor_chandef; 3632 else 3633 *chandef = local->_oper_chandef; 3634 ret = 0; 3635 } 3636 rcu_read_unlock(); 3637 3638 return ret; 3639 } 3640 3641 #ifdef CONFIG_PM 3642 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) 3643 { 3644 drv_set_wakeup(wiphy_priv(wiphy), enabled); 3645 } 3646 #endif 3647 3648 static int ieee80211_set_qos_map(struct wiphy *wiphy, 3649 struct net_device *dev, 3650 struct cfg80211_qos_map *qos_map) 3651 { 3652 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3653 struct mac80211_qos_map *new_qos_map, *old_qos_map; 3654 3655 if (qos_map) { 3656 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); 3657 if (!new_qos_map) 3658 return -ENOMEM; 3659 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); 3660 } else { 3661 /* A NULL qos_map was passed to disable QoS mapping */ 3662 new_qos_map = NULL; 3663 } 3664 3665 old_qos_map = sdata_dereference(sdata->qos_map, sdata); 3666 rcu_assign_pointer(sdata->qos_map, new_qos_map); 3667 if (old_qos_map) 3668 kfree_rcu(old_qos_map, rcu_head); 3669 3670 return 0; 3671 } 3672 3673 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy, 3674 struct net_device *dev, 3675 struct cfg80211_chan_def *chandef) 3676 { 3677 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3678 int ret; 3679 u32 changed = 0; 3680 3681 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed); 3682 if (ret == 0) 3683 ieee80211_bss_info_change_notify(sdata, changed); 3684 3685 return ret; 3686 } 3687 3688 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3689 u8 tsid, const u8 *peer, u8 up, 3690 u16 admitted_time) 3691 { 3692 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3693 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3694 int ac = ieee802_1d_to_ac[up]; 3695 3696 if (sdata->vif.type != NL80211_IFTYPE_STATION) 3697 return -EOPNOTSUPP; 3698 3699 if (!(sdata->wmm_acm & BIT(up))) 3700 return -EINVAL; 3701 3702 if (ifmgd->tx_tspec[ac].admitted_time) 3703 return -EBUSY; 3704 3705 if (admitted_time) { 3706 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time; 3707 ifmgd->tx_tspec[ac].tsid = tsid; 3708 ifmgd->tx_tspec[ac].up = up; 3709 } 3710 3711 return 0; 3712 } 3713 3714 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev, 3715 u8 tsid, const u8 *peer) 3716 { 3717 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3718 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; 3719 struct ieee80211_local *local = wiphy_priv(wiphy); 3720 int ac; 3721 3722 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { 3723 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; 3724 3725 /* skip unused entries */ 3726 if (!tx_tspec->admitted_time) 3727 continue; 3728 3729 if (tx_tspec->tsid != tsid) 3730 continue; 3731 3732 /* due to this new packets will be reassigned to non-ACM ACs */ 3733 tx_tspec->up = -1; 3734 3735 /* Make sure that all packets have been sent to avoid to 3736 * restore the QoS params on packets that are still on the 3737 * queues. 3738 */ 3739 synchronize_net(); 3740 ieee80211_flush_queues(local, sdata, false); 3741 3742 /* restore the normal QoS parameters 3743 * (unconditionally to avoid races) 3744 */ 3745 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; 3746 tx_tspec->downgraded = false; 3747 ieee80211_sta_handle_tspec_ac_params(sdata); 3748 3749 /* finally clear all the data */ 3750 memset(tx_tspec, 0, sizeof(*tx_tspec)); 3751 3752 return 0; 3753 } 3754 3755 return -ENOENT; 3756 } 3757 3758 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif, 3759 u8 inst_id, 3760 enum nl80211_nan_func_term_reason reason, 3761 gfp_t gfp) 3762 { 3763 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3764 struct cfg80211_nan_func *func; 3765 u64 cookie; 3766 3767 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3768 return; 3769 3770 spin_lock_bh(&sdata->u.nan.func_lock); 3771 3772 func = idr_find(&sdata->u.nan.function_inst_ids, inst_id); 3773 if (WARN_ON(!func)) { 3774 spin_unlock_bh(&sdata->u.nan.func_lock); 3775 return; 3776 } 3777 3778 cookie = func->cookie; 3779 idr_remove(&sdata->u.nan.function_inst_ids, inst_id); 3780 3781 spin_unlock_bh(&sdata->u.nan.func_lock); 3782 3783 cfg80211_free_nan_func(func); 3784 3785 cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id, 3786 reason, cookie, gfp); 3787 } 3788 EXPORT_SYMBOL(ieee80211_nan_func_terminated); 3789 3790 void ieee80211_nan_func_match(struct ieee80211_vif *vif, 3791 struct cfg80211_nan_match_params *match, 3792 gfp_t gfp) 3793 { 3794 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); 3795 struct cfg80211_nan_func *func; 3796 3797 if (WARN_ON(vif->type != NL80211_IFTYPE_NAN)) 3798 return; 3799 3800 spin_lock_bh(&sdata->u.nan.func_lock); 3801 3802 func = idr_find(&sdata->u.nan.function_inst_ids, match->inst_id); 3803 if (WARN_ON(!func)) { 3804 spin_unlock_bh(&sdata->u.nan.func_lock); 3805 return; 3806 } 3807 match->cookie = func->cookie; 3808 3809 spin_unlock_bh(&sdata->u.nan.func_lock); 3810 3811 cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp); 3812 } 3813 EXPORT_SYMBOL(ieee80211_nan_func_match); 3814 3815 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy, 3816 struct net_device *dev, 3817 const bool enabled) 3818 { 3819 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3820 3821 sdata->u.ap.multicast_to_unicast = enabled; 3822 3823 return 0; 3824 } 3825 3826 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats, 3827 struct txq_info *txqi) 3828 { 3829 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) { 3830 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES); 3831 txqstats->backlog_bytes = txqi->tin.backlog_bytes; 3832 } 3833 3834 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) { 3835 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS); 3836 txqstats->backlog_packets = txqi->tin.backlog_packets; 3837 } 3838 3839 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) { 3840 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS); 3841 txqstats->flows = txqi->tin.flows; 3842 } 3843 3844 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) { 3845 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS); 3846 txqstats->drops = txqi->cstats.drop_count; 3847 } 3848 3849 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) { 3850 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS); 3851 txqstats->ecn_marks = txqi->cstats.ecn_mark; 3852 } 3853 3854 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) { 3855 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT); 3856 txqstats->overlimit = txqi->tin.overlimit; 3857 } 3858 3859 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) { 3860 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS); 3861 txqstats->collisions = txqi->tin.collisions; 3862 } 3863 3864 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) { 3865 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES); 3866 txqstats->tx_bytes = txqi->tin.tx_bytes; 3867 } 3868 3869 if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) { 3870 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS); 3871 txqstats->tx_packets = txqi->tin.tx_packets; 3872 } 3873 } 3874 3875 static int ieee80211_get_txq_stats(struct wiphy *wiphy, 3876 struct wireless_dev *wdev, 3877 struct cfg80211_txq_stats *txqstats) 3878 { 3879 struct ieee80211_local *local = wiphy_priv(wiphy); 3880 struct ieee80211_sub_if_data *sdata; 3881 int ret = 0; 3882 3883 if (!local->ops->wake_tx_queue) 3884 return 1; 3885 3886 spin_lock_bh(&local->fq.lock); 3887 rcu_read_lock(); 3888 3889 if (wdev) { 3890 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); 3891 if (!sdata->vif.txq) { 3892 ret = 1; 3893 goto out; 3894 } 3895 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq)); 3896 } else { 3897 /* phy stats */ 3898 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) | 3899 BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) | 3900 BIT(NL80211_TXQ_STATS_OVERLIMIT) | 3901 BIT(NL80211_TXQ_STATS_OVERMEMORY) | 3902 BIT(NL80211_TXQ_STATS_COLLISIONS) | 3903 BIT(NL80211_TXQ_STATS_MAX_FLOWS); 3904 txqstats->backlog_packets = local->fq.backlog; 3905 txqstats->backlog_bytes = local->fq.memory_usage; 3906 txqstats->overlimit = local->fq.overlimit; 3907 txqstats->overmemory = local->fq.overmemory; 3908 txqstats->collisions = local->fq.collisions; 3909 txqstats->max_flows = local->fq.flows_cnt; 3910 } 3911 3912 out: 3913 rcu_read_unlock(); 3914 spin_unlock_bh(&local->fq.lock); 3915 3916 return ret; 3917 } 3918 3919 static int 3920 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy, 3921 struct net_device *dev, 3922 struct cfg80211_ftm_responder_stats *ftm_stats) 3923 { 3924 struct ieee80211_local *local = wiphy_priv(wiphy); 3925 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 3926 3927 return drv_get_ftm_responder_stats(local, sdata, ftm_stats); 3928 } 3929 3930 static int 3931 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3932 struct cfg80211_pmsr_request *request) 3933 { 3934 struct ieee80211_local *local = wiphy_priv(wiphy); 3935 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3936 3937 return drv_start_pmsr(local, sdata, request); 3938 } 3939 3940 static void 3941 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev, 3942 struct cfg80211_pmsr_request *request) 3943 { 3944 struct ieee80211_local *local = wiphy_priv(wiphy); 3945 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev); 3946 3947 return drv_abort_pmsr(local, sdata, request); 3948 } 3949 3950 const struct cfg80211_ops mac80211_config_ops = { 3951 .add_virtual_intf = ieee80211_add_iface, 3952 .del_virtual_intf = ieee80211_del_iface, 3953 .change_virtual_intf = ieee80211_change_iface, 3954 .start_p2p_device = ieee80211_start_p2p_device, 3955 .stop_p2p_device = ieee80211_stop_p2p_device, 3956 .add_key = ieee80211_add_key, 3957 .del_key = ieee80211_del_key, 3958 .get_key = ieee80211_get_key, 3959 .set_default_key = ieee80211_config_default_key, 3960 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 3961 .start_ap = ieee80211_start_ap, 3962 .change_beacon = ieee80211_change_beacon, 3963 .stop_ap = ieee80211_stop_ap, 3964 .add_station = ieee80211_add_station, 3965 .del_station = ieee80211_del_station, 3966 .change_station = ieee80211_change_station, 3967 .get_station = ieee80211_get_station, 3968 .dump_station = ieee80211_dump_station, 3969 .dump_survey = ieee80211_dump_survey, 3970 #ifdef CONFIG_MAC80211_MESH 3971 .add_mpath = ieee80211_add_mpath, 3972 .del_mpath = ieee80211_del_mpath, 3973 .change_mpath = ieee80211_change_mpath, 3974 .get_mpath = ieee80211_get_mpath, 3975 .dump_mpath = ieee80211_dump_mpath, 3976 .get_mpp = ieee80211_get_mpp, 3977 .dump_mpp = ieee80211_dump_mpp, 3978 .update_mesh_config = ieee80211_update_mesh_config, 3979 .get_mesh_config = ieee80211_get_mesh_config, 3980 .join_mesh = ieee80211_join_mesh, 3981 .leave_mesh = ieee80211_leave_mesh, 3982 #endif 3983 .join_ocb = ieee80211_join_ocb, 3984 .leave_ocb = ieee80211_leave_ocb, 3985 .change_bss = ieee80211_change_bss, 3986 .set_txq_params = ieee80211_set_txq_params, 3987 .set_monitor_channel = ieee80211_set_monitor_channel, 3988 .suspend = ieee80211_suspend, 3989 .resume = ieee80211_resume, 3990 .scan = ieee80211_scan, 3991 .abort_scan = ieee80211_abort_scan, 3992 .sched_scan_start = ieee80211_sched_scan_start, 3993 .sched_scan_stop = ieee80211_sched_scan_stop, 3994 .auth = ieee80211_auth, 3995 .assoc = ieee80211_assoc, 3996 .deauth = ieee80211_deauth, 3997 .disassoc = ieee80211_disassoc, 3998 .join_ibss = ieee80211_join_ibss, 3999 .leave_ibss = ieee80211_leave_ibss, 4000 .set_mcast_rate = ieee80211_set_mcast_rate, 4001 .set_wiphy_params = ieee80211_set_wiphy_params, 4002 .set_tx_power = ieee80211_set_tx_power, 4003 .get_tx_power = ieee80211_get_tx_power, 4004 .set_wds_peer = ieee80211_set_wds_peer, 4005 .rfkill_poll = ieee80211_rfkill_poll, 4006 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 4007 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) 4008 .set_power_mgmt = ieee80211_set_power_mgmt, 4009 .set_bitrate_mask = ieee80211_set_bitrate_mask, 4010 .remain_on_channel = ieee80211_remain_on_channel, 4011 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 4012 .mgmt_tx = ieee80211_mgmt_tx, 4013 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 4014 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 4015 .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config, 4016 .mgmt_frame_register = ieee80211_mgmt_frame_register, 4017 .set_antenna = ieee80211_set_antenna, 4018 .get_antenna = ieee80211_get_antenna, 4019 .set_rekey_data = ieee80211_set_rekey_data, 4020 .tdls_oper = ieee80211_tdls_oper, 4021 .tdls_mgmt = ieee80211_tdls_mgmt, 4022 .tdls_channel_switch = ieee80211_tdls_channel_switch, 4023 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch, 4024 .probe_client = ieee80211_probe_client, 4025 .set_noack_map = ieee80211_set_noack_map, 4026 #ifdef CONFIG_PM 4027 .set_wakeup = ieee80211_set_wakeup, 4028 #endif 4029 .get_channel = ieee80211_cfg_get_channel, 4030 .start_radar_detection = ieee80211_start_radar_detection, 4031 .channel_switch = ieee80211_channel_switch, 4032 .set_qos_map = ieee80211_set_qos_map, 4033 .set_ap_chanwidth = ieee80211_set_ap_chanwidth, 4034 .add_tx_ts = ieee80211_add_tx_ts, 4035 .del_tx_ts = ieee80211_del_tx_ts, 4036 .start_nan = ieee80211_start_nan, 4037 .stop_nan = ieee80211_stop_nan, 4038 .nan_change_conf = ieee80211_nan_change_conf, 4039 .add_nan_func = ieee80211_add_nan_func, 4040 .del_nan_func = ieee80211_del_nan_func, 4041 .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast, 4042 .tx_control_port = ieee80211_tx_control_port, 4043 .get_txq_stats = ieee80211_get_txq_stats, 4044 .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats, 4045 .start_pmsr = ieee80211_start_pmsr, 4046 .abort_pmsr = ieee80211_abort_pmsr, 4047 .probe_mesh_link = ieee80211_probe_mesh_link, 4048 }; 4049