1 /* 2 * mac80211 configuration hooks for cfg80211 3 * 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> 5 * 6 * This file is GPLv2 as found in COPYING. 7 */ 8 9 #include <linux/ieee80211.h> 10 #include <linux/nl80211.h> 11 #include <linux/rtnetlink.h> 12 #include <linux/slab.h> 13 #include <net/net_namespace.h> 14 #include <linux/rcupdate.h> 15 #include <net/cfg80211.h> 16 #include "ieee80211_i.h" 17 #include "driver-ops.h" 18 #include "cfg.h" 19 #include "rate.h" 20 #include "mesh.h" 21 22 static struct net_device *ieee80211_add_iface(struct wiphy *wiphy, char *name, 23 enum nl80211_iftype type, 24 u32 *flags, 25 struct vif_params *params) 26 { 27 struct ieee80211_local *local = wiphy_priv(wiphy); 28 struct net_device *dev; 29 struct ieee80211_sub_if_data *sdata; 30 int err; 31 32 err = ieee80211_if_add(local, name, &dev, type, params); 33 if (err) 34 return ERR_PTR(err); 35 36 if (type == NL80211_IFTYPE_MONITOR && flags) { 37 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 38 sdata->u.mntr_flags = *flags; 39 } 40 41 return dev; 42 } 43 44 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev) 45 { 46 ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev)); 47 48 return 0; 49 } 50 51 static int ieee80211_change_iface(struct wiphy *wiphy, 52 struct net_device *dev, 53 enum nl80211_iftype type, u32 *flags, 54 struct vif_params *params) 55 { 56 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 57 int ret; 58 59 ret = ieee80211_if_change_type(sdata, type); 60 if (ret) 61 return ret; 62 63 if (type == NL80211_IFTYPE_AP_VLAN && 64 params && params->use_4addr == 0) 65 rcu_assign_pointer(sdata->u.vlan.sta, NULL); 66 else if (type == NL80211_IFTYPE_STATION && 67 params && params->use_4addr >= 0) 68 sdata->u.mgd.use_4addr = params->use_4addr; 69 70 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) { 71 struct ieee80211_local *local = sdata->local; 72 73 if (ieee80211_sdata_running(sdata)) { 74 /* 75 * Prohibit MONITOR_FLAG_COOK_FRAMES to be 76 * changed while the interface is up. 77 * Else we would need to add a lot of cruft 78 * to update everything: 79 * cooked_mntrs, monitor and all fif_* counters 80 * reconfigure hardware 81 */ 82 if ((*flags & MONITOR_FLAG_COOK_FRAMES) != 83 (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES)) 84 return -EBUSY; 85 86 ieee80211_adjust_monitor_flags(sdata, -1); 87 sdata->u.mntr_flags = *flags; 88 ieee80211_adjust_monitor_flags(sdata, 1); 89 90 ieee80211_configure_filter(local); 91 } else { 92 /* 93 * Because the interface is down, ieee80211_do_stop 94 * and ieee80211_do_open take care of "everything" 95 * mentioned in the comment above. 96 */ 97 sdata->u.mntr_flags = *flags; 98 } 99 } 100 101 return 0; 102 } 103 104 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, 105 u8 key_idx, bool pairwise, const u8 *mac_addr, 106 struct key_params *params) 107 { 108 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 109 struct sta_info *sta = NULL; 110 struct ieee80211_key *key; 111 int err; 112 113 if (!ieee80211_sdata_running(sdata)) 114 return -ENETDOWN; 115 116 /* reject WEP and TKIP keys if WEP failed to initialize */ 117 switch (params->cipher) { 118 case WLAN_CIPHER_SUITE_WEP40: 119 case WLAN_CIPHER_SUITE_TKIP: 120 case WLAN_CIPHER_SUITE_WEP104: 121 if (IS_ERR(sdata->local->wep_tx_tfm)) 122 return -EINVAL; 123 break; 124 default: 125 break; 126 } 127 128 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, 129 params->key, params->seq_len, params->seq); 130 if (IS_ERR(key)) 131 return PTR_ERR(key); 132 133 if (pairwise) 134 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; 135 136 mutex_lock(&sdata->local->sta_mtx); 137 138 if (mac_addr) { 139 if (ieee80211_vif_is_mesh(&sdata->vif)) 140 sta = sta_info_get(sdata, mac_addr); 141 else 142 sta = sta_info_get_bss(sdata, mac_addr); 143 if (!sta) { 144 ieee80211_key_free(sdata->local, key); 145 err = -ENOENT; 146 goto out_unlock; 147 } 148 } 149 150 err = ieee80211_key_link(key, sdata, sta); 151 if (err) 152 ieee80211_key_free(sdata->local, key); 153 154 out_unlock: 155 mutex_unlock(&sdata->local->sta_mtx); 156 157 return err; 158 } 159 160 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, 161 u8 key_idx, bool pairwise, const u8 *mac_addr) 162 { 163 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 164 struct ieee80211_local *local = sdata->local; 165 struct sta_info *sta; 166 struct ieee80211_key *key = NULL; 167 int ret; 168 169 mutex_lock(&local->sta_mtx); 170 mutex_lock(&local->key_mtx); 171 172 if (mac_addr) { 173 ret = -ENOENT; 174 175 sta = sta_info_get_bss(sdata, mac_addr); 176 if (!sta) 177 goto out_unlock; 178 179 if (pairwise) 180 key = key_mtx_dereference(local, sta->ptk); 181 else 182 key = key_mtx_dereference(local, sta->gtk[key_idx]); 183 } else 184 key = key_mtx_dereference(local, sdata->keys[key_idx]); 185 186 if (!key) { 187 ret = -ENOENT; 188 goto out_unlock; 189 } 190 191 __ieee80211_key_free(key); 192 193 ret = 0; 194 out_unlock: 195 mutex_unlock(&local->key_mtx); 196 mutex_unlock(&local->sta_mtx); 197 198 return ret; 199 } 200 201 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, 202 u8 key_idx, bool pairwise, const u8 *mac_addr, 203 void *cookie, 204 void (*callback)(void *cookie, 205 struct key_params *params)) 206 { 207 struct ieee80211_sub_if_data *sdata; 208 struct sta_info *sta = NULL; 209 u8 seq[6] = {0}; 210 struct key_params params; 211 struct ieee80211_key *key = NULL; 212 u32 iv32; 213 u16 iv16; 214 int err = -ENOENT; 215 216 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 217 218 rcu_read_lock(); 219 220 if (mac_addr) { 221 sta = sta_info_get_bss(sdata, mac_addr); 222 if (!sta) 223 goto out; 224 225 if (pairwise) 226 key = rcu_dereference(sta->ptk); 227 else if (key_idx < NUM_DEFAULT_KEYS) 228 key = rcu_dereference(sta->gtk[key_idx]); 229 } else 230 key = rcu_dereference(sdata->keys[key_idx]); 231 232 if (!key) 233 goto out; 234 235 memset(¶ms, 0, sizeof(params)); 236 237 params.cipher = key->conf.cipher; 238 239 switch (key->conf.cipher) { 240 case WLAN_CIPHER_SUITE_TKIP: 241 iv32 = key->u.tkip.tx.iv32; 242 iv16 = key->u.tkip.tx.iv16; 243 244 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) 245 drv_get_tkip_seq(sdata->local, 246 key->conf.hw_key_idx, 247 &iv32, &iv16); 248 249 seq[0] = iv16 & 0xff; 250 seq[1] = (iv16 >> 8) & 0xff; 251 seq[2] = iv32 & 0xff; 252 seq[3] = (iv32 >> 8) & 0xff; 253 seq[4] = (iv32 >> 16) & 0xff; 254 seq[5] = (iv32 >> 24) & 0xff; 255 params.seq = seq; 256 params.seq_len = 6; 257 break; 258 case WLAN_CIPHER_SUITE_CCMP: 259 seq[0] = key->u.ccmp.tx_pn[5]; 260 seq[1] = key->u.ccmp.tx_pn[4]; 261 seq[2] = key->u.ccmp.tx_pn[3]; 262 seq[3] = key->u.ccmp.tx_pn[2]; 263 seq[4] = key->u.ccmp.tx_pn[1]; 264 seq[5] = key->u.ccmp.tx_pn[0]; 265 params.seq = seq; 266 params.seq_len = 6; 267 break; 268 case WLAN_CIPHER_SUITE_AES_CMAC: 269 seq[0] = key->u.aes_cmac.tx_pn[5]; 270 seq[1] = key->u.aes_cmac.tx_pn[4]; 271 seq[2] = key->u.aes_cmac.tx_pn[3]; 272 seq[3] = key->u.aes_cmac.tx_pn[2]; 273 seq[4] = key->u.aes_cmac.tx_pn[1]; 274 seq[5] = key->u.aes_cmac.tx_pn[0]; 275 params.seq = seq; 276 params.seq_len = 6; 277 break; 278 } 279 280 params.key = key->conf.key; 281 params.key_len = key->conf.keylen; 282 283 callback(cookie, ¶ms); 284 err = 0; 285 286 out: 287 rcu_read_unlock(); 288 return err; 289 } 290 291 static int ieee80211_config_default_key(struct wiphy *wiphy, 292 struct net_device *dev, 293 u8 key_idx, bool uni, 294 bool multi) 295 { 296 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 297 298 ieee80211_set_default_key(sdata, key_idx, uni, multi); 299 300 return 0; 301 } 302 303 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, 304 struct net_device *dev, 305 u8 key_idx) 306 { 307 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 308 309 ieee80211_set_default_mgmt_key(sdata, key_idx); 310 311 return 0; 312 } 313 314 static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, int idx) 315 { 316 if (!(rate->flags & RATE_INFO_FLAGS_MCS)) { 317 struct ieee80211_supported_band *sband; 318 sband = sta->local->hw.wiphy->bands[ 319 sta->local->hw.conf.channel->band]; 320 rate->legacy = sband->bitrates[idx].bitrate; 321 } else 322 rate->mcs = idx; 323 } 324 325 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) 326 { 327 struct ieee80211_sub_if_data *sdata = sta->sdata; 328 struct timespec uptime; 329 330 sinfo->generation = sdata->local->sta_generation; 331 332 sinfo->filled = STATION_INFO_INACTIVE_TIME | 333 STATION_INFO_RX_BYTES | 334 STATION_INFO_TX_BYTES | 335 STATION_INFO_RX_PACKETS | 336 STATION_INFO_TX_PACKETS | 337 STATION_INFO_TX_RETRIES | 338 STATION_INFO_TX_FAILED | 339 STATION_INFO_TX_BITRATE | 340 STATION_INFO_RX_BITRATE | 341 STATION_INFO_RX_DROP_MISC | 342 STATION_INFO_BSS_PARAM | 343 STATION_INFO_CONNECTED_TIME; 344 345 do_posix_clock_monotonic_gettime(&uptime); 346 sinfo->connected_time = uptime.tv_sec - sta->last_connected; 347 348 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx); 349 sinfo->rx_bytes = sta->rx_bytes; 350 sinfo->tx_bytes = sta->tx_bytes; 351 sinfo->rx_packets = sta->rx_packets; 352 sinfo->tx_packets = sta->tx_packets; 353 sinfo->tx_retries = sta->tx_retry_count; 354 sinfo->tx_failed = sta->tx_retry_failed; 355 sinfo->rx_dropped_misc = sta->rx_dropped; 356 357 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) || 358 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) { 359 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG; 360 sinfo->signal = (s8)sta->last_signal; 361 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal); 362 } 363 364 sinfo->txrate.flags = 0; 365 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS) 366 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; 367 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH) 368 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; 369 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI) 370 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 371 rate_idx_to_bitrate(&sinfo->txrate, sta, sta->last_tx_rate.idx); 372 373 sinfo->rxrate.flags = 0; 374 if (sta->last_rx_rate_flag & RX_FLAG_HT) 375 sinfo->rxrate.flags |= RATE_INFO_FLAGS_MCS; 376 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ) 377 sinfo->rxrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; 378 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI) 379 sinfo->rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI; 380 rate_idx_to_bitrate(&sinfo->rxrate, sta, sta->last_rx_rate_idx); 381 382 if (ieee80211_vif_is_mesh(&sdata->vif)) { 383 #ifdef CONFIG_MAC80211_MESH 384 sinfo->filled |= STATION_INFO_LLID | 385 STATION_INFO_PLID | 386 STATION_INFO_PLINK_STATE; 387 388 sinfo->llid = le16_to_cpu(sta->llid); 389 sinfo->plid = le16_to_cpu(sta->plid); 390 sinfo->plink_state = sta->plink_state; 391 #endif 392 } 393 394 sinfo->bss_param.flags = 0; 395 if (sdata->vif.bss_conf.use_cts_prot) 396 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT; 397 if (sdata->vif.bss_conf.use_short_preamble) 398 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE; 399 if (sdata->vif.bss_conf.use_short_slot) 400 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME; 401 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period; 402 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int; 403 } 404 405 406 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 407 int idx, u8 *mac, struct station_info *sinfo) 408 { 409 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 410 struct sta_info *sta; 411 int ret = -ENOENT; 412 413 rcu_read_lock(); 414 415 sta = sta_info_get_by_idx(sdata, idx); 416 if (sta) { 417 ret = 0; 418 memcpy(mac, sta->sta.addr, ETH_ALEN); 419 sta_set_sinfo(sta, sinfo); 420 } 421 422 rcu_read_unlock(); 423 424 return ret; 425 } 426 427 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 428 int idx, struct survey_info *survey) 429 { 430 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 431 432 return drv_get_survey(local, idx, survey); 433 } 434 435 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, 436 u8 *mac, struct station_info *sinfo) 437 { 438 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 439 struct sta_info *sta; 440 int ret = -ENOENT; 441 442 rcu_read_lock(); 443 444 sta = sta_info_get_bss(sdata, mac); 445 if (sta) { 446 ret = 0; 447 sta_set_sinfo(sta, sinfo); 448 } 449 450 rcu_read_unlock(); 451 452 return ret; 453 } 454 455 /* 456 * This handles both adding a beacon and setting new beacon info 457 */ 458 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata, 459 struct beacon_parameters *params) 460 { 461 struct beacon_data *new, *old; 462 int new_head_len, new_tail_len; 463 int size; 464 int err = -EINVAL; 465 466 old = rtnl_dereference(sdata->u.ap.beacon); 467 468 /* head must not be zero-length */ 469 if (params->head && !params->head_len) 470 return -EINVAL; 471 472 /* 473 * This is a kludge. beacon interval should really be part 474 * of the beacon information. 475 */ 476 if (params->interval && 477 (sdata->vif.bss_conf.beacon_int != params->interval)) { 478 sdata->vif.bss_conf.beacon_int = params->interval; 479 ieee80211_bss_info_change_notify(sdata, 480 BSS_CHANGED_BEACON_INT); 481 } 482 483 /* Need to have a beacon head if we don't have one yet */ 484 if (!params->head && !old) 485 return err; 486 487 /* sorry, no way to start beaconing without dtim period */ 488 if (!params->dtim_period && !old) 489 return err; 490 491 /* new or old head? */ 492 if (params->head) 493 new_head_len = params->head_len; 494 else 495 new_head_len = old->head_len; 496 497 /* new or old tail? */ 498 if (params->tail || !old) 499 /* params->tail_len will be zero for !params->tail */ 500 new_tail_len = params->tail_len; 501 else 502 new_tail_len = old->tail_len; 503 504 size = sizeof(*new) + new_head_len + new_tail_len; 505 506 new = kzalloc(size, GFP_KERNEL); 507 if (!new) 508 return -ENOMEM; 509 510 /* start filling the new info now */ 511 512 /* new or old dtim period? */ 513 if (params->dtim_period) 514 new->dtim_period = params->dtim_period; 515 else 516 new->dtim_period = old->dtim_period; 517 518 /* 519 * pointers go into the block we allocated, 520 * memory is | beacon_data | head | tail | 521 */ 522 new->head = ((u8 *) new) + sizeof(*new); 523 new->tail = new->head + new_head_len; 524 new->head_len = new_head_len; 525 new->tail_len = new_tail_len; 526 527 /* copy in head */ 528 if (params->head) 529 memcpy(new->head, params->head, new_head_len); 530 else 531 memcpy(new->head, old->head, new_head_len); 532 533 /* copy in optional tail */ 534 if (params->tail) 535 memcpy(new->tail, params->tail, new_tail_len); 536 else 537 if (old) 538 memcpy(new->tail, old->tail, new_tail_len); 539 540 sdata->vif.bss_conf.dtim_period = new->dtim_period; 541 542 rcu_assign_pointer(sdata->u.ap.beacon, new); 543 544 synchronize_rcu(); 545 546 kfree(old); 547 548 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED | 549 BSS_CHANGED_BEACON); 550 return 0; 551 } 552 553 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev, 554 struct beacon_parameters *params) 555 { 556 struct ieee80211_sub_if_data *sdata; 557 struct beacon_data *old; 558 559 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 560 561 old = rtnl_dereference(sdata->u.ap.beacon); 562 if (old) 563 return -EALREADY; 564 565 return ieee80211_config_beacon(sdata, params); 566 } 567 568 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev, 569 struct beacon_parameters *params) 570 { 571 struct ieee80211_sub_if_data *sdata; 572 struct beacon_data *old; 573 574 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 575 576 old = rtnl_dereference(sdata->u.ap.beacon); 577 if (!old) 578 return -ENOENT; 579 580 return ieee80211_config_beacon(sdata, params); 581 } 582 583 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev) 584 { 585 struct ieee80211_sub_if_data *sdata; 586 struct beacon_data *old; 587 588 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 589 590 old = rtnl_dereference(sdata->u.ap.beacon); 591 if (!old) 592 return -ENOENT; 593 594 rcu_assign_pointer(sdata->u.ap.beacon, NULL); 595 synchronize_rcu(); 596 kfree(old); 597 598 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); 599 return 0; 600 } 601 602 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */ 603 struct iapp_layer2_update { 604 u8 da[ETH_ALEN]; /* broadcast */ 605 u8 sa[ETH_ALEN]; /* STA addr */ 606 __be16 len; /* 6 */ 607 u8 dsap; /* 0 */ 608 u8 ssap; /* 0 */ 609 u8 control; 610 u8 xid_info[3]; 611 } __packed; 612 613 static void ieee80211_send_layer2_update(struct sta_info *sta) 614 { 615 struct iapp_layer2_update *msg; 616 struct sk_buff *skb; 617 618 /* Send Level 2 Update Frame to update forwarding tables in layer 2 619 * bridge devices */ 620 621 skb = dev_alloc_skb(sizeof(*msg)); 622 if (!skb) 623 return; 624 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg)); 625 626 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID) 627 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */ 628 629 memset(msg->da, 0xff, ETH_ALEN); 630 memcpy(msg->sa, sta->sta.addr, ETH_ALEN); 631 msg->len = htons(6); 632 msg->dsap = 0; 633 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */ 634 msg->control = 0xaf; /* XID response lsb.1111F101. 635 * F=0 (no poll command; unsolicited frame) */ 636 msg->xid_info[0] = 0x81; /* XID format identifier */ 637 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */ 638 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */ 639 640 skb->dev = sta->sdata->dev; 641 skb->protocol = eth_type_trans(skb, sta->sdata->dev); 642 memset(skb->cb, 0, sizeof(skb->cb)); 643 netif_rx_ni(skb); 644 } 645 646 static void sta_apply_parameters(struct ieee80211_local *local, 647 struct sta_info *sta, 648 struct station_parameters *params) 649 { 650 unsigned long flags; 651 u32 rates; 652 int i, j; 653 struct ieee80211_supported_band *sband; 654 struct ieee80211_sub_if_data *sdata = sta->sdata; 655 u32 mask, set; 656 657 sband = local->hw.wiphy->bands[local->oper_channel->band]; 658 659 spin_lock_irqsave(&sta->flaglock, flags); 660 mask = params->sta_flags_mask; 661 set = params->sta_flags_set; 662 663 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { 664 sta->flags &= ~WLAN_STA_AUTHORIZED; 665 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) 666 sta->flags |= WLAN_STA_AUTHORIZED; 667 } 668 669 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { 670 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE; 671 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) 672 sta->flags |= WLAN_STA_SHORT_PREAMBLE; 673 } 674 675 if (mask & BIT(NL80211_STA_FLAG_WME)) { 676 sta->flags &= ~WLAN_STA_WME; 677 if (set & BIT(NL80211_STA_FLAG_WME)) 678 sta->flags |= WLAN_STA_WME; 679 } 680 681 if (mask & BIT(NL80211_STA_FLAG_MFP)) { 682 sta->flags &= ~WLAN_STA_MFP; 683 if (set & BIT(NL80211_STA_FLAG_MFP)) 684 sta->flags |= WLAN_STA_MFP; 685 } 686 687 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) { 688 sta->flags &= ~WLAN_STA_AUTH; 689 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) 690 sta->flags |= WLAN_STA_AUTH; 691 } 692 spin_unlock_irqrestore(&sta->flaglock, flags); 693 694 /* 695 * cfg80211 validates this (1-2007) and allows setting the AID 696 * only when creating a new station entry 697 */ 698 if (params->aid) 699 sta->sta.aid = params->aid; 700 701 /* 702 * FIXME: updating the following information is racy when this 703 * function is called from ieee80211_change_station(). 704 * However, all this information should be static so 705 * maybe we should just reject attemps to change it. 706 */ 707 708 if (params->listen_interval >= 0) 709 sta->listen_interval = params->listen_interval; 710 711 if (params->supported_rates) { 712 rates = 0; 713 714 for (i = 0; i < params->supported_rates_len; i++) { 715 int rate = (params->supported_rates[i] & 0x7f) * 5; 716 for (j = 0; j < sband->n_bitrates; j++) { 717 if (sband->bitrates[j].bitrate == rate) 718 rates |= BIT(j); 719 } 720 } 721 sta->sta.supp_rates[local->oper_channel->band] = rates; 722 } 723 724 if (params->ht_capa) 725 ieee80211_ht_cap_ie_to_sta_ht_cap(sband, 726 params->ht_capa, 727 &sta->sta.ht_cap); 728 729 if (ieee80211_vif_is_mesh(&sdata->vif)) { 730 #ifdef CONFIG_MAC80211_MESH 731 if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED) 732 switch (params->plink_state) { 733 case NL80211_PLINK_LISTEN: 734 case NL80211_PLINK_ESTAB: 735 case NL80211_PLINK_BLOCKED: 736 sta->plink_state = params->plink_state; 737 break; 738 default: 739 /* nothing */ 740 break; 741 } 742 else 743 switch (params->plink_action) { 744 case PLINK_ACTION_OPEN: 745 mesh_plink_open(sta); 746 break; 747 case PLINK_ACTION_BLOCK: 748 mesh_plink_block(sta); 749 break; 750 } 751 #endif 752 } 753 } 754 755 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, 756 u8 *mac, struct station_parameters *params) 757 { 758 struct ieee80211_local *local = wiphy_priv(wiphy); 759 struct sta_info *sta; 760 struct ieee80211_sub_if_data *sdata; 761 int err; 762 int layer2_update; 763 764 if (params->vlan) { 765 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 766 767 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && 768 sdata->vif.type != NL80211_IFTYPE_AP) 769 return -EINVAL; 770 } else 771 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 772 773 if (compare_ether_addr(mac, sdata->vif.addr) == 0) 774 return -EINVAL; 775 776 if (is_multicast_ether_addr(mac)) 777 return -EINVAL; 778 779 sta = sta_info_alloc(sdata, mac, GFP_KERNEL); 780 if (!sta) 781 return -ENOMEM; 782 783 sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC; 784 785 sta_apply_parameters(local, sta, params); 786 787 rate_control_rate_init(sta); 788 789 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || 790 sdata->vif.type == NL80211_IFTYPE_AP; 791 792 err = sta_info_insert_rcu(sta); 793 if (err) { 794 rcu_read_unlock(); 795 return err; 796 } 797 798 if (layer2_update) 799 ieee80211_send_layer2_update(sta); 800 801 rcu_read_unlock(); 802 803 return 0; 804 } 805 806 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, 807 u8 *mac) 808 { 809 struct ieee80211_local *local = wiphy_priv(wiphy); 810 struct ieee80211_sub_if_data *sdata; 811 812 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 813 814 if (mac) 815 return sta_info_destroy_addr_bss(sdata, mac); 816 817 sta_info_flush(local, sdata); 818 return 0; 819 } 820 821 static int ieee80211_change_station(struct wiphy *wiphy, 822 struct net_device *dev, 823 u8 *mac, 824 struct station_parameters *params) 825 { 826 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 827 struct ieee80211_local *local = wiphy_priv(wiphy); 828 struct sta_info *sta; 829 struct ieee80211_sub_if_data *vlansdata; 830 831 rcu_read_lock(); 832 833 sta = sta_info_get_bss(sdata, mac); 834 if (!sta) { 835 rcu_read_unlock(); 836 return -ENOENT; 837 } 838 839 if (params->vlan && params->vlan != sta->sdata->dev) { 840 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); 841 842 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN && 843 vlansdata->vif.type != NL80211_IFTYPE_AP) { 844 rcu_read_unlock(); 845 return -EINVAL; 846 } 847 848 if (params->vlan->ieee80211_ptr->use_4addr) { 849 if (vlansdata->u.vlan.sta) { 850 rcu_read_unlock(); 851 return -EBUSY; 852 } 853 854 rcu_assign_pointer(vlansdata->u.vlan.sta, sta); 855 } 856 857 sta->sdata = vlansdata; 858 ieee80211_send_layer2_update(sta); 859 } 860 861 sta_apply_parameters(local, sta, params); 862 863 rcu_read_unlock(); 864 865 if (sdata->vif.type == NL80211_IFTYPE_STATION && 866 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) 867 ieee80211_recalc_ps(local, -1); 868 869 return 0; 870 } 871 872 #ifdef CONFIG_MAC80211_MESH 873 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, 874 u8 *dst, u8 *next_hop) 875 { 876 struct ieee80211_sub_if_data *sdata; 877 struct mesh_path *mpath; 878 struct sta_info *sta; 879 int err; 880 881 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 882 883 rcu_read_lock(); 884 sta = sta_info_get(sdata, next_hop); 885 if (!sta) { 886 rcu_read_unlock(); 887 return -ENOENT; 888 } 889 890 err = mesh_path_add(dst, sdata); 891 if (err) { 892 rcu_read_unlock(); 893 return err; 894 } 895 896 mpath = mesh_path_lookup(dst, sdata); 897 if (!mpath) { 898 rcu_read_unlock(); 899 return -ENXIO; 900 } 901 mesh_path_fix_nexthop(mpath, sta); 902 903 rcu_read_unlock(); 904 return 0; 905 } 906 907 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, 908 u8 *dst) 909 { 910 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 911 912 if (dst) 913 return mesh_path_del(dst, sdata); 914 915 mesh_path_flush(sdata); 916 return 0; 917 } 918 919 static int ieee80211_change_mpath(struct wiphy *wiphy, 920 struct net_device *dev, 921 u8 *dst, u8 *next_hop) 922 { 923 struct ieee80211_sub_if_data *sdata; 924 struct mesh_path *mpath; 925 struct sta_info *sta; 926 927 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 928 929 rcu_read_lock(); 930 931 sta = sta_info_get(sdata, next_hop); 932 if (!sta) { 933 rcu_read_unlock(); 934 return -ENOENT; 935 } 936 937 mpath = mesh_path_lookup(dst, sdata); 938 if (!mpath) { 939 rcu_read_unlock(); 940 return -ENOENT; 941 } 942 943 mesh_path_fix_nexthop(mpath, sta); 944 945 rcu_read_unlock(); 946 return 0; 947 } 948 949 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, 950 struct mpath_info *pinfo) 951 { 952 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); 953 954 if (next_hop_sta) 955 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); 956 else 957 memset(next_hop, 0, ETH_ALEN); 958 959 pinfo->generation = mesh_paths_generation; 960 961 pinfo->filled = MPATH_INFO_FRAME_QLEN | 962 MPATH_INFO_SN | 963 MPATH_INFO_METRIC | 964 MPATH_INFO_EXPTIME | 965 MPATH_INFO_DISCOVERY_TIMEOUT | 966 MPATH_INFO_DISCOVERY_RETRIES | 967 MPATH_INFO_FLAGS; 968 969 pinfo->frame_qlen = mpath->frame_queue.qlen; 970 pinfo->sn = mpath->sn; 971 pinfo->metric = mpath->metric; 972 if (time_before(jiffies, mpath->exp_time)) 973 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); 974 pinfo->discovery_timeout = 975 jiffies_to_msecs(mpath->discovery_timeout); 976 pinfo->discovery_retries = mpath->discovery_retries; 977 pinfo->flags = 0; 978 if (mpath->flags & MESH_PATH_ACTIVE) 979 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; 980 if (mpath->flags & MESH_PATH_RESOLVING) 981 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 982 if (mpath->flags & MESH_PATH_SN_VALID) 983 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; 984 if (mpath->flags & MESH_PATH_FIXED) 985 pinfo->flags |= NL80211_MPATH_FLAG_FIXED; 986 if (mpath->flags & MESH_PATH_RESOLVING) 987 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; 988 989 pinfo->flags = mpath->flags; 990 } 991 992 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, 993 u8 *dst, u8 *next_hop, struct mpath_info *pinfo) 994 995 { 996 struct ieee80211_sub_if_data *sdata; 997 struct mesh_path *mpath; 998 999 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1000 1001 rcu_read_lock(); 1002 mpath = mesh_path_lookup(dst, sdata); 1003 if (!mpath) { 1004 rcu_read_unlock(); 1005 return -ENOENT; 1006 } 1007 memcpy(dst, mpath->dst, ETH_ALEN); 1008 mpath_set_pinfo(mpath, next_hop, pinfo); 1009 rcu_read_unlock(); 1010 return 0; 1011 } 1012 1013 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, 1014 int idx, u8 *dst, u8 *next_hop, 1015 struct mpath_info *pinfo) 1016 { 1017 struct ieee80211_sub_if_data *sdata; 1018 struct mesh_path *mpath; 1019 1020 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1021 1022 rcu_read_lock(); 1023 mpath = mesh_path_lookup_by_idx(idx, sdata); 1024 if (!mpath) { 1025 rcu_read_unlock(); 1026 return -ENOENT; 1027 } 1028 memcpy(dst, mpath->dst, ETH_ALEN); 1029 mpath_set_pinfo(mpath, next_hop, pinfo); 1030 rcu_read_unlock(); 1031 return 0; 1032 } 1033 1034 static int ieee80211_get_mesh_config(struct wiphy *wiphy, 1035 struct net_device *dev, 1036 struct mesh_config *conf) 1037 { 1038 struct ieee80211_sub_if_data *sdata; 1039 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1040 1041 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); 1042 return 0; 1043 } 1044 1045 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) 1046 { 1047 return (mask >> (parm-1)) & 0x1; 1048 } 1049 1050 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, 1051 const struct mesh_setup *setup) 1052 { 1053 u8 *new_ie; 1054 const u8 *old_ie; 1055 1056 /* allocate information elements */ 1057 new_ie = NULL; 1058 old_ie = ifmsh->ie; 1059 1060 if (setup->ie_len) { 1061 new_ie = kmemdup(setup->ie, setup->ie_len, 1062 GFP_KERNEL); 1063 if (!new_ie) 1064 return -ENOMEM; 1065 } 1066 ifmsh->ie_len = setup->ie_len; 1067 ifmsh->ie = new_ie; 1068 kfree(old_ie); 1069 1070 /* now copy the rest of the setup parameters */ 1071 ifmsh->mesh_id_len = setup->mesh_id_len; 1072 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); 1073 ifmsh->mesh_pp_id = setup->path_sel_proto; 1074 ifmsh->mesh_pm_id = setup->path_metric; 1075 ifmsh->security = IEEE80211_MESH_SEC_NONE; 1076 if (setup->is_authenticated) 1077 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; 1078 if (setup->is_secure) 1079 ifmsh->security |= IEEE80211_MESH_SEC_SECURED; 1080 1081 return 0; 1082 } 1083 1084 static int ieee80211_update_mesh_config(struct wiphy *wiphy, 1085 struct net_device *dev, u32 mask, 1086 const struct mesh_config *nconf) 1087 { 1088 struct mesh_config *conf; 1089 struct ieee80211_sub_if_data *sdata; 1090 struct ieee80211_if_mesh *ifmsh; 1091 1092 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1093 ifmsh = &sdata->u.mesh; 1094 1095 /* Set the config options which we are interested in setting */ 1096 conf = &(sdata->u.mesh.mshcfg); 1097 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) 1098 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; 1099 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) 1100 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; 1101 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) 1102 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; 1103 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) 1104 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; 1105 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) 1106 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; 1107 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) 1108 conf->dot11MeshTTL = nconf->dot11MeshTTL; 1109 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) 1110 conf->dot11MeshTTL = nconf->element_ttl; 1111 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) 1112 conf->auto_open_plinks = nconf->auto_open_plinks; 1113 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) 1114 conf->dot11MeshHWMPmaxPREQretries = 1115 nconf->dot11MeshHWMPmaxPREQretries; 1116 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) 1117 conf->path_refresh_time = nconf->path_refresh_time; 1118 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) 1119 conf->min_discovery_timeout = nconf->min_discovery_timeout; 1120 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) 1121 conf->dot11MeshHWMPactivePathTimeout = 1122 nconf->dot11MeshHWMPactivePathTimeout; 1123 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) 1124 conf->dot11MeshHWMPpreqMinInterval = 1125 nconf->dot11MeshHWMPpreqMinInterval; 1126 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, 1127 mask)) 1128 conf->dot11MeshHWMPnetDiameterTraversalTime = 1129 nconf->dot11MeshHWMPnetDiameterTraversalTime; 1130 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { 1131 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; 1132 ieee80211_mesh_root_setup(ifmsh); 1133 } 1134 return 0; 1135 } 1136 1137 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, 1138 const struct mesh_config *conf, 1139 const struct mesh_setup *setup) 1140 { 1141 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1142 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; 1143 int err; 1144 1145 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); 1146 err = copy_mesh_setup(ifmsh, setup); 1147 if (err) 1148 return err; 1149 ieee80211_start_mesh(sdata); 1150 1151 return 0; 1152 } 1153 1154 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) 1155 { 1156 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1157 1158 ieee80211_stop_mesh(sdata); 1159 1160 return 0; 1161 } 1162 #endif 1163 1164 static int ieee80211_change_bss(struct wiphy *wiphy, 1165 struct net_device *dev, 1166 struct bss_parameters *params) 1167 { 1168 struct ieee80211_sub_if_data *sdata; 1169 u32 changed = 0; 1170 1171 sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1172 1173 if (params->use_cts_prot >= 0) { 1174 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; 1175 changed |= BSS_CHANGED_ERP_CTS_PROT; 1176 } 1177 if (params->use_short_preamble >= 0) { 1178 sdata->vif.bss_conf.use_short_preamble = 1179 params->use_short_preamble; 1180 changed |= BSS_CHANGED_ERP_PREAMBLE; 1181 } 1182 1183 if (!sdata->vif.bss_conf.use_short_slot && 1184 sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) { 1185 sdata->vif.bss_conf.use_short_slot = true; 1186 changed |= BSS_CHANGED_ERP_SLOT; 1187 } 1188 1189 if (params->use_short_slot_time >= 0) { 1190 sdata->vif.bss_conf.use_short_slot = 1191 params->use_short_slot_time; 1192 changed |= BSS_CHANGED_ERP_SLOT; 1193 } 1194 1195 if (params->basic_rates) { 1196 int i, j; 1197 u32 rates = 0; 1198 struct ieee80211_local *local = wiphy_priv(wiphy); 1199 struct ieee80211_supported_band *sband = 1200 wiphy->bands[local->oper_channel->band]; 1201 1202 for (i = 0; i < params->basic_rates_len; i++) { 1203 int rate = (params->basic_rates[i] & 0x7f) * 5; 1204 for (j = 0; j < sband->n_bitrates; j++) { 1205 if (sband->bitrates[j].bitrate == rate) 1206 rates |= BIT(j); 1207 } 1208 } 1209 sdata->vif.bss_conf.basic_rates = rates; 1210 changed |= BSS_CHANGED_BASIC_RATES; 1211 } 1212 1213 if (params->ap_isolate >= 0) { 1214 if (params->ap_isolate) 1215 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 1216 else 1217 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; 1218 } 1219 1220 if (params->ht_opmode >= 0) { 1221 sdata->vif.bss_conf.ht_operation_mode = 1222 (u16) params->ht_opmode; 1223 changed |= BSS_CHANGED_HT; 1224 } 1225 1226 ieee80211_bss_info_change_notify(sdata, changed); 1227 1228 return 0; 1229 } 1230 1231 static int ieee80211_set_txq_params(struct wiphy *wiphy, 1232 struct ieee80211_txq_params *params) 1233 { 1234 struct ieee80211_local *local = wiphy_priv(wiphy); 1235 struct ieee80211_tx_queue_params p; 1236 1237 if (!local->ops->conf_tx) 1238 return -EOPNOTSUPP; 1239 1240 memset(&p, 0, sizeof(p)); 1241 p.aifs = params->aifs; 1242 p.cw_max = params->cwmax; 1243 p.cw_min = params->cwmin; 1244 p.txop = params->txop; 1245 1246 /* 1247 * Setting tx queue params disables u-apsd because it's only 1248 * called in master mode. 1249 */ 1250 p.uapsd = false; 1251 1252 if (drv_conf_tx(local, params->queue, &p)) { 1253 wiphy_debug(local->hw.wiphy, 1254 "failed to set TX queue parameters for queue %d\n", 1255 params->queue); 1256 return -EINVAL; 1257 } 1258 1259 return 0; 1260 } 1261 1262 static int ieee80211_set_channel(struct wiphy *wiphy, 1263 struct net_device *netdev, 1264 struct ieee80211_channel *chan, 1265 enum nl80211_channel_type channel_type) 1266 { 1267 struct ieee80211_local *local = wiphy_priv(wiphy); 1268 struct ieee80211_sub_if_data *sdata = NULL; 1269 struct ieee80211_channel *old_oper; 1270 enum nl80211_channel_type old_oper_type; 1271 enum nl80211_channel_type old_vif_oper_type= NL80211_CHAN_NO_HT; 1272 1273 if (netdev) 1274 sdata = IEEE80211_DEV_TO_SUB_IF(netdev); 1275 1276 switch (ieee80211_get_channel_mode(local, NULL)) { 1277 case CHAN_MODE_HOPPING: 1278 return -EBUSY; 1279 case CHAN_MODE_FIXED: 1280 if (local->oper_channel != chan) 1281 return -EBUSY; 1282 if (!sdata && local->_oper_channel_type == channel_type) 1283 return 0; 1284 break; 1285 case CHAN_MODE_UNDEFINED: 1286 break; 1287 } 1288 1289 if (sdata) 1290 old_vif_oper_type = sdata->vif.bss_conf.channel_type; 1291 old_oper_type = local->_oper_channel_type; 1292 1293 if (!ieee80211_set_channel_type(local, sdata, channel_type)) 1294 return -EBUSY; 1295 1296 old_oper = local->oper_channel; 1297 local->oper_channel = chan; 1298 1299 /* Update driver if changes were actually made. */ 1300 if ((old_oper != local->oper_channel) || 1301 (old_oper_type != local->_oper_channel_type)) 1302 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL); 1303 1304 if ((sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR) && 1305 old_vif_oper_type != sdata->vif.bss_conf.channel_type) 1306 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); 1307 1308 return 0; 1309 } 1310 1311 #ifdef CONFIG_PM 1312 static int ieee80211_suspend(struct wiphy *wiphy, 1313 struct cfg80211_wowlan *wowlan) 1314 { 1315 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); 1316 } 1317 1318 static int ieee80211_resume(struct wiphy *wiphy) 1319 { 1320 return __ieee80211_resume(wiphy_priv(wiphy)); 1321 } 1322 #else 1323 #define ieee80211_suspend NULL 1324 #define ieee80211_resume NULL 1325 #endif 1326 1327 static int ieee80211_scan(struct wiphy *wiphy, 1328 struct net_device *dev, 1329 struct cfg80211_scan_request *req) 1330 { 1331 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1332 1333 switch (ieee80211_vif_type_p2p(&sdata->vif)) { 1334 case NL80211_IFTYPE_STATION: 1335 case NL80211_IFTYPE_ADHOC: 1336 case NL80211_IFTYPE_MESH_POINT: 1337 case NL80211_IFTYPE_P2P_CLIENT: 1338 break; 1339 case NL80211_IFTYPE_P2P_GO: 1340 if (sdata->local->ops->hw_scan) 1341 break; 1342 /* 1343 * FIXME: implement NoA while scanning in software, 1344 * for now fall through to allow scanning only when 1345 * beaconing hasn't been configured yet 1346 */ 1347 case NL80211_IFTYPE_AP: 1348 if (sdata->u.ap.beacon) 1349 return -EOPNOTSUPP; 1350 break; 1351 default: 1352 return -EOPNOTSUPP; 1353 } 1354 1355 return ieee80211_request_scan(sdata, req); 1356 } 1357 1358 static int 1359 ieee80211_sched_scan_start(struct wiphy *wiphy, 1360 struct net_device *dev, 1361 struct cfg80211_sched_scan_request *req) 1362 { 1363 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1364 1365 if (!sdata->local->ops->sched_scan_start) 1366 return -EOPNOTSUPP; 1367 1368 return ieee80211_request_sched_scan_start(sdata, req); 1369 } 1370 1371 static int 1372 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev) 1373 { 1374 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1375 1376 if (!sdata->local->ops->sched_scan_stop) 1377 return -EOPNOTSUPP; 1378 1379 return ieee80211_request_sched_scan_stop(sdata); 1380 } 1381 1382 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, 1383 struct cfg80211_auth_request *req) 1384 { 1385 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); 1386 } 1387 1388 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, 1389 struct cfg80211_assoc_request *req) 1390 { 1391 struct ieee80211_local *local = wiphy_priv(wiphy); 1392 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1393 1394 switch (ieee80211_get_channel_mode(local, sdata)) { 1395 case CHAN_MODE_HOPPING: 1396 return -EBUSY; 1397 case CHAN_MODE_FIXED: 1398 if (local->oper_channel == req->bss->channel) 1399 break; 1400 return -EBUSY; 1401 case CHAN_MODE_UNDEFINED: 1402 break; 1403 } 1404 1405 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); 1406 } 1407 1408 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, 1409 struct cfg80211_deauth_request *req, 1410 void *cookie) 1411 { 1412 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), 1413 req, cookie); 1414 } 1415 1416 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, 1417 struct cfg80211_disassoc_request *req, 1418 void *cookie) 1419 { 1420 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), 1421 req, cookie); 1422 } 1423 1424 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 1425 struct cfg80211_ibss_params *params) 1426 { 1427 struct ieee80211_local *local = wiphy_priv(wiphy); 1428 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1429 1430 switch (ieee80211_get_channel_mode(local, sdata)) { 1431 case CHAN_MODE_HOPPING: 1432 return -EBUSY; 1433 case CHAN_MODE_FIXED: 1434 if (!params->channel_fixed) 1435 return -EBUSY; 1436 if (local->oper_channel == params->channel) 1437 break; 1438 return -EBUSY; 1439 case CHAN_MODE_UNDEFINED: 1440 break; 1441 } 1442 1443 return ieee80211_ibss_join(sdata, params); 1444 } 1445 1446 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 1447 { 1448 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1449 1450 return ieee80211_ibss_leave(sdata); 1451 } 1452 1453 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 1454 { 1455 struct ieee80211_local *local = wiphy_priv(wiphy); 1456 int err; 1457 1458 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 1459 err = drv_set_frag_threshold(local, wiphy->frag_threshold); 1460 1461 if (err) 1462 return err; 1463 } 1464 1465 if (changed & WIPHY_PARAM_COVERAGE_CLASS) { 1466 err = drv_set_coverage_class(local, wiphy->coverage_class); 1467 1468 if (err) 1469 return err; 1470 } 1471 1472 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 1473 err = drv_set_rts_threshold(local, wiphy->rts_threshold); 1474 1475 if (err) 1476 return err; 1477 } 1478 1479 if (changed & WIPHY_PARAM_RETRY_SHORT) 1480 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; 1481 if (changed & WIPHY_PARAM_RETRY_LONG) 1482 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; 1483 if (changed & 1484 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) 1485 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); 1486 1487 return 0; 1488 } 1489 1490 static int ieee80211_set_tx_power(struct wiphy *wiphy, 1491 enum nl80211_tx_power_setting type, int mbm) 1492 { 1493 struct ieee80211_local *local = wiphy_priv(wiphy); 1494 struct ieee80211_channel *chan = local->hw.conf.channel; 1495 u32 changes = 0; 1496 1497 switch (type) { 1498 case NL80211_TX_POWER_AUTOMATIC: 1499 local->user_power_level = -1; 1500 break; 1501 case NL80211_TX_POWER_LIMITED: 1502 if (mbm < 0 || (mbm % 100)) 1503 return -EOPNOTSUPP; 1504 local->user_power_level = MBM_TO_DBM(mbm); 1505 break; 1506 case NL80211_TX_POWER_FIXED: 1507 if (mbm < 0 || (mbm % 100)) 1508 return -EOPNOTSUPP; 1509 /* TODO: move to cfg80211 when it knows the channel */ 1510 if (MBM_TO_DBM(mbm) > chan->max_power) 1511 return -EINVAL; 1512 local->user_power_level = MBM_TO_DBM(mbm); 1513 break; 1514 } 1515 1516 ieee80211_hw_config(local, changes); 1517 1518 return 0; 1519 } 1520 1521 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm) 1522 { 1523 struct ieee80211_local *local = wiphy_priv(wiphy); 1524 1525 *dbm = local->hw.conf.power_level; 1526 1527 return 0; 1528 } 1529 1530 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, 1531 const u8 *addr) 1532 { 1533 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1534 1535 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); 1536 1537 return 0; 1538 } 1539 1540 static void ieee80211_rfkill_poll(struct wiphy *wiphy) 1541 { 1542 struct ieee80211_local *local = wiphy_priv(wiphy); 1543 1544 drv_rfkill_poll(local); 1545 } 1546 1547 #ifdef CONFIG_NL80211_TESTMODE 1548 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len) 1549 { 1550 struct ieee80211_local *local = wiphy_priv(wiphy); 1551 1552 if (!local->ops->testmode_cmd) 1553 return -EOPNOTSUPP; 1554 1555 return local->ops->testmode_cmd(&local->hw, data, len); 1556 } 1557 #endif 1558 1559 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata, 1560 enum ieee80211_smps_mode smps_mode) 1561 { 1562 const u8 *ap; 1563 enum ieee80211_smps_mode old_req; 1564 int err; 1565 1566 lockdep_assert_held(&sdata->u.mgd.mtx); 1567 1568 old_req = sdata->u.mgd.req_smps; 1569 sdata->u.mgd.req_smps = smps_mode; 1570 1571 if (old_req == smps_mode && 1572 smps_mode != IEEE80211_SMPS_AUTOMATIC) 1573 return 0; 1574 1575 /* 1576 * If not associated, or current association is not an HT 1577 * association, there's no need to send an action frame. 1578 */ 1579 if (!sdata->u.mgd.associated || 1580 sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) { 1581 mutex_lock(&sdata->local->iflist_mtx); 1582 ieee80211_recalc_smps(sdata->local); 1583 mutex_unlock(&sdata->local->iflist_mtx); 1584 return 0; 1585 } 1586 1587 ap = sdata->u.mgd.associated->bssid; 1588 1589 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { 1590 if (sdata->u.mgd.powersave) 1591 smps_mode = IEEE80211_SMPS_DYNAMIC; 1592 else 1593 smps_mode = IEEE80211_SMPS_OFF; 1594 } 1595 1596 /* send SM PS frame to AP */ 1597 err = ieee80211_send_smps_action(sdata, smps_mode, 1598 ap, ap); 1599 if (err) 1600 sdata->u.mgd.req_smps = old_req; 1601 1602 return err; 1603 } 1604 1605 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 1606 bool enabled, int timeout) 1607 { 1608 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1609 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 1610 1611 if (sdata->vif.type != NL80211_IFTYPE_STATION) 1612 return -EOPNOTSUPP; 1613 1614 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS)) 1615 return -EOPNOTSUPP; 1616 1617 if (enabled == sdata->u.mgd.powersave && 1618 timeout == local->dynamic_ps_forced_timeout) 1619 return 0; 1620 1621 sdata->u.mgd.powersave = enabled; 1622 local->dynamic_ps_forced_timeout = timeout; 1623 1624 /* no change, but if automatic follow powersave */ 1625 mutex_lock(&sdata->u.mgd.mtx); 1626 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps); 1627 mutex_unlock(&sdata->u.mgd.mtx); 1628 1629 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS) 1630 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); 1631 1632 ieee80211_recalc_ps(local, -1); 1633 1634 return 0; 1635 } 1636 1637 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, 1638 struct net_device *dev, 1639 s32 rssi_thold, u32 rssi_hyst) 1640 { 1641 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1642 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 1643 struct ieee80211_vif *vif = &sdata->vif; 1644 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; 1645 1646 if (rssi_thold == bss_conf->cqm_rssi_thold && 1647 rssi_hyst == bss_conf->cqm_rssi_hyst) 1648 return 0; 1649 1650 bss_conf->cqm_rssi_thold = rssi_thold; 1651 bss_conf->cqm_rssi_hyst = rssi_hyst; 1652 1653 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) { 1654 if (sdata->vif.type != NL80211_IFTYPE_STATION) 1655 return -EOPNOTSUPP; 1656 return 0; 1657 } 1658 1659 /* tell the driver upon association, unless already associated */ 1660 if (sdata->u.mgd.associated) 1661 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); 1662 1663 return 0; 1664 } 1665 1666 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, 1667 struct net_device *dev, 1668 const u8 *addr, 1669 const struct cfg80211_bitrate_mask *mask) 1670 { 1671 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1672 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); 1673 int i, ret; 1674 1675 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) { 1676 ret = drv_set_bitrate_mask(local, sdata, mask); 1677 if (ret) 1678 return ret; 1679 } 1680 1681 for (i = 0; i < IEEE80211_NUM_BANDS; i++) 1682 sdata->rc_rateidx_mask[i] = mask->control[i].legacy; 1683 1684 return 0; 1685 } 1686 1687 static int ieee80211_remain_on_channel_hw(struct ieee80211_local *local, 1688 struct net_device *dev, 1689 struct ieee80211_channel *chan, 1690 enum nl80211_channel_type chantype, 1691 unsigned int duration, u64 *cookie) 1692 { 1693 int ret; 1694 u32 random_cookie; 1695 1696 lockdep_assert_held(&local->mtx); 1697 1698 if (local->hw_roc_cookie) 1699 return -EBUSY; 1700 /* must be nonzero */ 1701 random_cookie = random32() | 1; 1702 1703 *cookie = random_cookie; 1704 local->hw_roc_dev = dev; 1705 local->hw_roc_cookie = random_cookie; 1706 local->hw_roc_channel = chan; 1707 local->hw_roc_channel_type = chantype; 1708 local->hw_roc_duration = duration; 1709 ret = drv_remain_on_channel(local, chan, chantype, duration); 1710 if (ret) { 1711 local->hw_roc_channel = NULL; 1712 local->hw_roc_cookie = 0; 1713 } 1714 1715 return ret; 1716 } 1717 1718 static int ieee80211_remain_on_channel(struct wiphy *wiphy, 1719 struct net_device *dev, 1720 struct ieee80211_channel *chan, 1721 enum nl80211_channel_type channel_type, 1722 unsigned int duration, 1723 u64 *cookie) 1724 { 1725 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1726 struct ieee80211_local *local = sdata->local; 1727 1728 if (local->ops->remain_on_channel) { 1729 int ret; 1730 1731 mutex_lock(&local->mtx); 1732 ret = ieee80211_remain_on_channel_hw(local, dev, 1733 chan, channel_type, 1734 duration, cookie); 1735 local->hw_roc_for_tx = false; 1736 mutex_unlock(&local->mtx); 1737 1738 return ret; 1739 } 1740 1741 return ieee80211_wk_remain_on_channel(sdata, chan, channel_type, 1742 duration, cookie); 1743 } 1744 1745 static int ieee80211_cancel_remain_on_channel_hw(struct ieee80211_local *local, 1746 u64 cookie) 1747 { 1748 int ret; 1749 1750 lockdep_assert_held(&local->mtx); 1751 1752 if (local->hw_roc_cookie != cookie) 1753 return -ENOENT; 1754 1755 ret = drv_cancel_remain_on_channel(local); 1756 if (ret) 1757 return ret; 1758 1759 local->hw_roc_cookie = 0; 1760 local->hw_roc_channel = NULL; 1761 1762 ieee80211_recalc_idle(local); 1763 1764 return 0; 1765 } 1766 1767 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, 1768 struct net_device *dev, 1769 u64 cookie) 1770 { 1771 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1772 struct ieee80211_local *local = sdata->local; 1773 1774 if (local->ops->cancel_remain_on_channel) { 1775 int ret; 1776 1777 mutex_lock(&local->mtx); 1778 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie); 1779 mutex_unlock(&local->mtx); 1780 1781 return ret; 1782 } 1783 1784 return ieee80211_wk_cancel_remain_on_channel(sdata, cookie); 1785 } 1786 1787 static enum work_done_result 1788 ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb) 1789 { 1790 /* 1791 * Use the data embedded in the work struct for reporting 1792 * here so if the driver mangled the SKB before dropping 1793 * it (which is the only way we really should get here) 1794 * then we don't report mangled data. 1795 * 1796 * If there was no wait time, then by the time we get here 1797 * the driver will likely not have reported the status yet, 1798 * so in that case userspace will have to deal with it. 1799 */ 1800 1801 if (wk->offchan_tx.wait && wk->offchan_tx.frame) 1802 cfg80211_mgmt_tx_status(wk->sdata->dev, 1803 (unsigned long) wk->offchan_tx.frame, 1804 wk->ie, wk->ie_len, false, GFP_KERNEL); 1805 1806 return WORK_DONE_DESTROY; 1807 } 1808 1809 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev, 1810 struct ieee80211_channel *chan, bool offchan, 1811 enum nl80211_channel_type channel_type, 1812 bool channel_type_valid, unsigned int wait, 1813 const u8 *buf, size_t len, u64 *cookie) 1814 { 1815 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1816 struct ieee80211_local *local = sdata->local; 1817 struct sk_buff *skb; 1818 struct sta_info *sta; 1819 struct ieee80211_work *wk; 1820 const struct ieee80211_mgmt *mgmt = (void *)buf; 1821 u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX | 1822 IEEE80211_TX_CTL_REQ_TX_STATUS; 1823 bool is_offchan = false; 1824 1825 /* Check that we are on the requested channel for transmission */ 1826 if (chan != local->tmp_channel && 1827 chan != local->oper_channel) 1828 is_offchan = true; 1829 if (channel_type_valid && 1830 (channel_type != local->tmp_channel_type && 1831 channel_type != local->_oper_channel_type)) 1832 is_offchan = true; 1833 1834 if (chan == local->hw_roc_channel) { 1835 /* TODO: check channel type? */ 1836 is_offchan = false; 1837 flags |= IEEE80211_TX_CTL_TX_OFFCHAN; 1838 } 1839 1840 if (is_offchan && !offchan) 1841 return -EBUSY; 1842 1843 switch (sdata->vif.type) { 1844 case NL80211_IFTYPE_ADHOC: 1845 case NL80211_IFTYPE_AP: 1846 case NL80211_IFTYPE_AP_VLAN: 1847 case NL80211_IFTYPE_P2P_GO: 1848 case NL80211_IFTYPE_MESH_POINT: 1849 if (!ieee80211_is_action(mgmt->frame_control) || 1850 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC) 1851 break; 1852 rcu_read_lock(); 1853 sta = sta_info_get(sdata, mgmt->da); 1854 rcu_read_unlock(); 1855 if (!sta) 1856 return -ENOLINK; 1857 break; 1858 case NL80211_IFTYPE_STATION: 1859 case NL80211_IFTYPE_P2P_CLIENT: 1860 break; 1861 default: 1862 return -EOPNOTSUPP; 1863 } 1864 1865 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len); 1866 if (!skb) 1867 return -ENOMEM; 1868 skb_reserve(skb, local->hw.extra_tx_headroom); 1869 1870 memcpy(skb_put(skb, len), buf, len); 1871 1872 IEEE80211_SKB_CB(skb)->flags = flags; 1873 1874 skb->dev = sdata->dev; 1875 1876 *cookie = (unsigned long) skb; 1877 1878 if (is_offchan && local->ops->offchannel_tx) { 1879 int ret; 1880 1881 IEEE80211_SKB_CB(skb)->band = chan->band; 1882 1883 mutex_lock(&local->mtx); 1884 1885 if (local->hw_offchan_tx_cookie) { 1886 mutex_unlock(&local->mtx); 1887 return -EBUSY; 1888 } 1889 1890 /* TODO: bitrate control, TX processing? */ 1891 ret = drv_offchannel_tx(local, skb, chan, channel_type, wait); 1892 1893 if (ret == 0) 1894 local->hw_offchan_tx_cookie = *cookie; 1895 mutex_unlock(&local->mtx); 1896 1897 /* 1898 * Allow driver to return 1 to indicate it wants to have the 1899 * frame transmitted with a remain_on_channel + regular TX. 1900 */ 1901 if (ret != 1) 1902 return ret; 1903 } 1904 1905 if (is_offchan && local->ops->remain_on_channel) { 1906 unsigned int duration; 1907 int ret; 1908 1909 mutex_lock(&local->mtx); 1910 /* 1911 * If the duration is zero, then the driver 1912 * wouldn't actually do anything. Set it to 1913 * 100 for now. 1914 * 1915 * TODO: cancel the off-channel operation 1916 * when we get the SKB's TX status and 1917 * the wait time was zero before. 1918 */ 1919 duration = 100; 1920 if (wait) 1921 duration = wait; 1922 ret = ieee80211_remain_on_channel_hw(local, dev, chan, 1923 channel_type, 1924 duration, cookie); 1925 if (ret) { 1926 kfree_skb(skb); 1927 mutex_unlock(&local->mtx); 1928 return ret; 1929 } 1930 1931 local->hw_roc_for_tx = true; 1932 local->hw_roc_duration = wait; 1933 1934 /* 1935 * queue up frame for transmission after 1936 * ieee80211_ready_on_channel call 1937 */ 1938 1939 /* modify cookie to prevent API mismatches */ 1940 *cookie ^= 2; 1941 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN; 1942 local->hw_roc_skb = skb; 1943 local->hw_roc_skb_for_status = skb; 1944 mutex_unlock(&local->mtx); 1945 1946 return 0; 1947 } 1948 1949 /* 1950 * Can transmit right away if the channel was the 1951 * right one and there's no wait involved... If a 1952 * wait is involved, we might otherwise not be on 1953 * the right channel for long enough! 1954 */ 1955 if (!is_offchan && !wait && !sdata->vif.bss_conf.idle) { 1956 ieee80211_tx_skb(sdata, skb); 1957 return 0; 1958 } 1959 1960 wk = kzalloc(sizeof(*wk) + len, GFP_KERNEL); 1961 if (!wk) { 1962 kfree_skb(skb); 1963 return -ENOMEM; 1964 } 1965 1966 wk->type = IEEE80211_WORK_OFFCHANNEL_TX; 1967 wk->chan = chan; 1968 wk->chan_type = channel_type; 1969 wk->sdata = sdata; 1970 wk->done = ieee80211_offchan_tx_done; 1971 wk->offchan_tx.frame = skb; 1972 wk->offchan_tx.wait = wait; 1973 wk->ie_len = len; 1974 memcpy(wk->ie, buf, len); 1975 1976 ieee80211_add_work(wk); 1977 return 0; 1978 } 1979 1980 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, 1981 struct net_device *dev, 1982 u64 cookie) 1983 { 1984 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); 1985 struct ieee80211_local *local = sdata->local; 1986 struct ieee80211_work *wk; 1987 int ret = -ENOENT; 1988 1989 mutex_lock(&local->mtx); 1990 1991 if (local->ops->offchannel_tx_cancel_wait && 1992 local->hw_offchan_tx_cookie == cookie) { 1993 ret = drv_offchannel_tx_cancel_wait(local); 1994 1995 if (!ret) 1996 local->hw_offchan_tx_cookie = 0; 1997 1998 mutex_unlock(&local->mtx); 1999 2000 return ret; 2001 } 2002 2003 if (local->ops->cancel_remain_on_channel) { 2004 cookie ^= 2; 2005 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie); 2006 2007 if (ret == 0) { 2008 kfree_skb(local->hw_roc_skb); 2009 local->hw_roc_skb = NULL; 2010 local->hw_roc_skb_for_status = NULL; 2011 } 2012 2013 mutex_unlock(&local->mtx); 2014 2015 return ret; 2016 } 2017 2018 list_for_each_entry(wk, &local->work_list, list) { 2019 if (wk->sdata != sdata) 2020 continue; 2021 2022 if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX) 2023 continue; 2024 2025 if (cookie != (unsigned long) wk->offchan_tx.frame) 2026 continue; 2027 2028 wk->timeout = jiffies; 2029 2030 ieee80211_queue_work(&local->hw, &local->work_work); 2031 ret = 0; 2032 break; 2033 } 2034 mutex_unlock(&local->mtx); 2035 2036 return ret; 2037 } 2038 2039 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, 2040 struct net_device *dev, 2041 u16 frame_type, bool reg) 2042 { 2043 struct ieee80211_local *local = wiphy_priv(wiphy); 2044 2045 if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ)) 2046 return; 2047 2048 if (reg) 2049 local->probe_req_reg++; 2050 else 2051 local->probe_req_reg--; 2052 2053 ieee80211_queue_work(&local->hw, &local->reconfig_filter); 2054 } 2055 2056 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 2057 { 2058 struct ieee80211_local *local = wiphy_priv(wiphy); 2059 2060 if (local->started) 2061 return -EOPNOTSUPP; 2062 2063 return drv_set_antenna(local, tx_ant, rx_ant); 2064 } 2065 2066 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 2067 { 2068 struct ieee80211_local *local = wiphy_priv(wiphy); 2069 2070 return drv_get_antenna(local, tx_ant, rx_ant); 2071 } 2072 2073 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx) 2074 { 2075 struct ieee80211_local *local = wiphy_priv(wiphy); 2076 2077 return drv_set_ringparam(local, tx, rx); 2078 } 2079 2080 static void ieee80211_get_ringparam(struct wiphy *wiphy, 2081 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max) 2082 { 2083 struct ieee80211_local *local = wiphy_priv(wiphy); 2084 2085 drv_get_ringparam(local, tx, tx_max, rx, rx_max); 2086 } 2087 2088 struct cfg80211_ops mac80211_config_ops = { 2089 .add_virtual_intf = ieee80211_add_iface, 2090 .del_virtual_intf = ieee80211_del_iface, 2091 .change_virtual_intf = ieee80211_change_iface, 2092 .add_key = ieee80211_add_key, 2093 .del_key = ieee80211_del_key, 2094 .get_key = ieee80211_get_key, 2095 .set_default_key = ieee80211_config_default_key, 2096 .set_default_mgmt_key = ieee80211_config_default_mgmt_key, 2097 .add_beacon = ieee80211_add_beacon, 2098 .set_beacon = ieee80211_set_beacon, 2099 .del_beacon = ieee80211_del_beacon, 2100 .add_station = ieee80211_add_station, 2101 .del_station = ieee80211_del_station, 2102 .change_station = ieee80211_change_station, 2103 .get_station = ieee80211_get_station, 2104 .dump_station = ieee80211_dump_station, 2105 .dump_survey = ieee80211_dump_survey, 2106 #ifdef CONFIG_MAC80211_MESH 2107 .add_mpath = ieee80211_add_mpath, 2108 .del_mpath = ieee80211_del_mpath, 2109 .change_mpath = ieee80211_change_mpath, 2110 .get_mpath = ieee80211_get_mpath, 2111 .dump_mpath = ieee80211_dump_mpath, 2112 .update_mesh_config = ieee80211_update_mesh_config, 2113 .get_mesh_config = ieee80211_get_mesh_config, 2114 .join_mesh = ieee80211_join_mesh, 2115 .leave_mesh = ieee80211_leave_mesh, 2116 #endif 2117 .change_bss = ieee80211_change_bss, 2118 .set_txq_params = ieee80211_set_txq_params, 2119 .set_channel = ieee80211_set_channel, 2120 .suspend = ieee80211_suspend, 2121 .resume = ieee80211_resume, 2122 .scan = ieee80211_scan, 2123 .sched_scan_start = ieee80211_sched_scan_start, 2124 .sched_scan_stop = ieee80211_sched_scan_stop, 2125 .auth = ieee80211_auth, 2126 .assoc = ieee80211_assoc, 2127 .deauth = ieee80211_deauth, 2128 .disassoc = ieee80211_disassoc, 2129 .join_ibss = ieee80211_join_ibss, 2130 .leave_ibss = ieee80211_leave_ibss, 2131 .set_wiphy_params = ieee80211_set_wiphy_params, 2132 .set_tx_power = ieee80211_set_tx_power, 2133 .get_tx_power = ieee80211_get_tx_power, 2134 .set_wds_peer = ieee80211_set_wds_peer, 2135 .rfkill_poll = ieee80211_rfkill_poll, 2136 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) 2137 .set_power_mgmt = ieee80211_set_power_mgmt, 2138 .set_bitrate_mask = ieee80211_set_bitrate_mask, 2139 .remain_on_channel = ieee80211_remain_on_channel, 2140 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, 2141 .mgmt_tx = ieee80211_mgmt_tx, 2142 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, 2143 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, 2144 .mgmt_frame_register = ieee80211_mgmt_frame_register, 2145 .set_antenna = ieee80211_set_antenna, 2146 .get_antenna = ieee80211_get_antenna, 2147 .set_ringparam = ieee80211_set_ringparam, 2148 .get_ringparam = ieee80211_get_ringparam, 2149 }; 2150