1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * NXP Wireless LAN device driver: CFG80211 4 * 5 * Copyright 2011-2020 NXP 6 */ 7 8 #include "cfg80211.h" 9 #include "main.h" 10 #include "11n.h" 11 #include "wmm.h" 12 13 static char *reg_alpha2; 14 module_param(reg_alpha2, charp, 0); 15 16 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = { 17 { 18 .max = MWIFIEX_MAX_BSS_NUM, 19 .types = BIT(NL80211_IFTYPE_STATION) | 20 BIT(NL80211_IFTYPE_P2P_GO) | 21 BIT(NL80211_IFTYPE_P2P_CLIENT) | 22 BIT(NL80211_IFTYPE_AP), 23 }, 24 }; 25 26 static const struct ieee80211_iface_combination 27 mwifiex_iface_comb_ap_sta = { 28 .limits = mwifiex_ap_sta_limits, 29 .num_different_channels = 1, 30 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits), 31 .max_interfaces = MWIFIEX_MAX_BSS_NUM, 32 .beacon_int_infra_match = true, 33 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 34 BIT(NL80211_CHAN_WIDTH_20) | 35 BIT(NL80211_CHAN_WIDTH_40), 36 }; 37 38 static const struct ieee80211_iface_combination 39 mwifiex_iface_comb_ap_sta_vht = { 40 .limits = mwifiex_ap_sta_limits, 41 .num_different_channels = 1, 42 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits), 43 .max_interfaces = MWIFIEX_MAX_BSS_NUM, 44 .beacon_int_infra_match = true, 45 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 46 BIT(NL80211_CHAN_WIDTH_20) | 47 BIT(NL80211_CHAN_WIDTH_40) | 48 BIT(NL80211_CHAN_WIDTH_80), 49 }; 50 51 static const struct 52 ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = { 53 .limits = mwifiex_ap_sta_limits, 54 .num_different_channels = 2, 55 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits), 56 .max_interfaces = MWIFIEX_MAX_BSS_NUM, 57 .beacon_int_infra_match = true, 58 }; 59 60 /* 61 * This function maps the nl802.11 channel type into driver channel type. 62 * 63 * The mapping is as follows - 64 * NL80211_CHAN_NO_HT -> IEEE80211_HT_PARAM_CHA_SEC_NONE 65 * NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE 66 * NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE 67 * NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW 68 * Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE 69 */ 70 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type) 71 { 72 switch (chan_type) { 73 case NL80211_CHAN_NO_HT: 74 case NL80211_CHAN_HT20: 75 return IEEE80211_HT_PARAM_CHA_SEC_NONE; 76 case NL80211_CHAN_HT40PLUS: 77 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE; 78 case NL80211_CHAN_HT40MINUS: 79 return IEEE80211_HT_PARAM_CHA_SEC_BELOW; 80 default: 81 return IEEE80211_HT_PARAM_CHA_SEC_NONE; 82 } 83 } 84 85 /* This function maps IEEE HT secondary channel type to NL80211 channel type 86 */ 87 u8 mwifiex_get_chan_type(struct mwifiex_private *priv) 88 { 89 struct mwifiex_channel_band channel_band; 90 int ret; 91 92 ret = mwifiex_get_chan_info(priv, &channel_band); 93 94 if (!ret) { 95 switch (channel_band.band_config.chan_width) { 96 case CHAN_BW_20MHZ: 97 if (IS_11N_ENABLED(priv)) 98 return NL80211_CHAN_HT20; 99 else 100 return NL80211_CHAN_NO_HT; 101 case CHAN_BW_40MHZ: 102 if (channel_band.band_config.chan2_offset == 103 SEC_CHAN_ABOVE) 104 return NL80211_CHAN_HT40PLUS; 105 else 106 return NL80211_CHAN_HT40MINUS; 107 default: 108 return NL80211_CHAN_HT20; 109 } 110 } 111 112 return NL80211_CHAN_HT20; 113 } 114 115 /* 116 * This function checks whether WEP is set. 117 */ 118 static int 119 mwifiex_is_alg_wep(u32 cipher) 120 { 121 switch (cipher) { 122 case WLAN_CIPHER_SUITE_WEP40: 123 case WLAN_CIPHER_SUITE_WEP104: 124 return 1; 125 default: 126 break; 127 } 128 129 return 0; 130 } 131 132 /* 133 * This function retrieves the private structure from kernel wiphy structure. 134 */ 135 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy) 136 { 137 return (void *) (*(unsigned long *) wiphy_priv(wiphy)); 138 } 139 140 /* 141 * CFG802.11 operation handler to delete a network key. 142 */ 143 static int 144 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev, 145 int link_id, u8 key_index, bool pairwise, 146 const u8 *mac_addr) 147 { 148 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev); 149 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 150 const u8 *peer_mac = pairwise ? mac_addr : bc_mac; 151 152 if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) { 153 mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n"); 154 return -EFAULT; 155 } 156 157 mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n"); 158 return 0; 159 } 160 161 /* 162 * This function forms an skb for management frame. 163 */ 164 static int 165 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len) 166 { 167 u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; 168 u16 pkt_len; 169 u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT; 170 171 pkt_len = len + ETH_ALEN; 172 173 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN + 174 MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len)); 175 memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len)); 176 177 memcpy(skb_push(skb, sizeof(tx_control)), 178 &tx_control, sizeof(tx_control)); 179 180 memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type)); 181 182 /* Add packet data and address4 */ 183 skb_put_data(skb, buf, sizeof(struct ieee80211_hdr_3addr)); 184 skb_put_data(skb, addr, ETH_ALEN); 185 skb_put_data(skb, buf + sizeof(struct ieee80211_hdr_3addr), 186 len - sizeof(struct ieee80211_hdr_3addr)); 187 188 skb->priority = LOW_PRIO_TID; 189 __net_timestamp(skb); 190 191 return 0; 192 } 193 194 /* 195 * CFG802.11 operation handler to transmit a management frame. 196 */ 197 static int 198 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 199 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 200 { 201 const u8 *buf = params->buf; 202 size_t len = params->len; 203 struct sk_buff *skb; 204 u16 pkt_len; 205 const struct ieee80211_mgmt *mgmt; 206 struct mwifiex_txinfo *tx_info; 207 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 208 209 if (!buf || !len) { 210 mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n"); 211 return -EFAULT; 212 } 213 214 mgmt = (const struct ieee80211_mgmt *)buf; 215 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA && 216 ieee80211_is_probe_resp(mgmt->frame_control)) { 217 /* Since we support offload probe resp, we need to skip probe 218 * resp in AP or GO mode */ 219 mwifiex_dbg(priv->adapter, INFO, 220 "info: skip to send probe resp in AP or GO mode\n"); 221 return 0; 222 } 223 224 pkt_len = len + ETH_ALEN; 225 skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN + 226 MWIFIEX_MGMT_FRAME_HEADER_SIZE + 227 pkt_len + sizeof(pkt_len)); 228 229 if (!skb) { 230 mwifiex_dbg(priv->adapter, ERROR, 231 "allocate skb failed for management frame\n"); 232 return -ENOMEM; 233 } 234 235 tx_info = MWIFIEX_SKB_TXCB(skb); 236 memset(tx_info, 0, sizeof(*tx_info)); 237 tx_info->bss_num = priv->bss_num; 238 tx_info->bss_type = priv->bss_type; 239 tx_info->pkt_len = pkt_len; 240 241 mwifiex_form_mgmt_frame(skb, buf, len); 242 *cookie = get_random_u32() | 1; 243 244 if (ieee80211_is_action(mgmt->frame_control)) 245 skb = mwifiex_clone_skb_for_tx_status(priv, 246 skb, 247 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie); 248 else 249 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, 250 GFP_ATOMIC); 251 252 mwifiex_queue_tx_pkt(priv, skb); 253 254 mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n"); 255 return 0; 256 } 257 258 /* 259 * CFG802.11 operation handler to register a mgmt frame. 260 */ 261 static void 262 mwifiex_cfg80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 263 struct wireless_dev *wdev, 264 struct mgmt_frame_regs *upd) 265 { 266 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 267 u32 mask = upd->interface_stypes; 268 269 if (mask != priv->mgmt_frame_mask) { 270 priv->mgmt_frame_mask = mask; 271 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG, 272 HostCmd_ACT_GEN_SET, 0, 273 &priv->mgmt_frame_mask, false); 274 mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n"); 275 } 276 } 277 278 /* 279 * CFG802.11 operation handler to remain on channel. 280 */ 281 static int 282 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy, 283 struct wireless_dev *wdev, 284 struct ieee80211_channel *chan, 285 unsigned int duration, u64 *cookie) 286 { 287 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 288 int ret; 289 290 if (!chan || !cookie) { 291 mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n"); 292 return -EINVAL; 293 } 294 295 if (priv->roc_cfg.cookie) { 296 mwifiex_dbg(priv->adapter, INFO, 297 "info: ongoing ROC, cookie = 0x%llx\n", 298 priv->roc_cfg.cookie); 299 return -EBUSY; 300 } 301 302 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan, 303 duration); 304 305 if (!ret) { 306 *cookie = get_random_u32() | 1; 307 priv->roc_cfg.cookie = *cookie; 308 priv->roc_cfg.chan = *chan; 309 310 cfg80211_ready_on_channel(wdev, *cookie, chan, 311 duration, GFP_ATOMIC); 312 313 mwifiex_dbg(priv->adapter, INFO, 314 "info: ROC, cookie = 0x%llx\n", *cookie); 315 } 316 317 return ret; 318 } 319 320 /* 321 * CFG802.11 operation handler to cancel remain on channel. 322 */ 323 static int 324 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy, 325 struct wireless_dev *wdev, u64 cookie) 326 { 327 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 328 int ret; 329 330 if (cookie != priv->roc_cfg.cookie) 331 return -ENOENT; 332 333 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE, 334 &priv->roc_cfg.chan, 0); 335 336 if (!ret) { 337 cfg80211_remain_on_channel_expired(wdev, cookie, 338 &priv->roc_cfg.chan, 339 GFP_ATOMIC); 340 341 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg)); 342 343 mwifiex_dbg(priv->adapter, INFO, 344 "info: cancel ROC, cookie = 0x%llx\n", cookie); 345 } 346 347 return ret; 348 } 349 350 /* 351 * CFG802.11 operation handler to set Tx power. 352 */ 353 static int 354 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy, 355 struct wireless_dev *wdev, 356 enum nl80211_tx_power_setting type, 357 int mbm) 358 { 359 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 360 struct mwifiex_private *priv; 361 struct mwifiex_power_cfg power_cfg; 362 int dbm = MBM_TO_DBM(mbm); 363 364 switch (type) { 365 case NL80211_TX_POWER_FIXED: 366 power_cfg.is_power_auto = 0; 367 power_cfg.is_power_fixed = 1; 368 power_cfg.power_level = dbm; 369 break; 370 case NL80211_TX_POWER_LIMITED: 371 power_cfg.is_power_auto = 0; 372 power_cfg.is_power_fixed = 0; 373 power_cfg.power_level = dbm; 374 break; 375 case NL80211_TX_POWER_AUTOMATIC: 376 power_cfg.is_power_auto = 1; 377 break; 378 } 379 380 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 381 382 return mwifiex_set_tx_power(priv, &power_cfg); 383 } 384 385 /* 386 * CFG802.11 operation handler to get Tx power. 387 */ 388 static int 389 mwifiex_cfg80211_get_tx_power(struct wiphy *wiphy, 390 struct wireless_dev *wdev, 391 int *dbm) 392 { 393 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 394 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 395 MWIFIEX_BSS_ROLE_ANY); 396 int ret = mwifiex_send_cmd(priv, HostCmd_CMD_RF_TX_PWR, 397 HostCmd_ACT_GEN_GET, 0, NULL, true); 398 399 if (ret < 0) 400 return ret; 401 402 /* tx_power_level is set in HostCmd_CMD_RF_TX_PWR command handler */ 403 *dbm = priv->tx_power_level; 404 405 return 0; 406 } 407 408 /* 409 * CFG802.11 operation handler to set Power Save option. 410 * 411 * The timeout value, if provided, is currently ignored. 412 */ 413 static int 414 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy, 415 struct net_device *dev, 416 bool enabled, int timeout) 417 { 418 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 419 u32 ps_mode; 420 421 if (timeout) 422 mwifiex_dbg(priv->adapter, INFO, 423 "info: ignore timeout value for IEEE Power Save\n"); 424 425 ps_mode = enabled; 426 427 return mwifiex_drv_set_power(priv, &ps_mode); 428 } 429 430 /* 431 * CFG802.11 operation handler to set the default network key. 432 */ 433 static int 434 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev, 435 int link_id, u8 key_index, bool unicast, 436 bool multicast) 437 { 438 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev); 439 440 /* Return if WEP key not configured */ 441 if (!priv->sec_info.wep_enabled) 442 return 0; 443 444 if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) { 445 priv->wep_key_curr_index = key_index; 446 } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, 447 NULL, 0)) { 448 mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n"); 449 return -EFAULT; 450 } 451 452 return 0; 453 } 454 455 /* 456 * CFG802.11 operation handler to add a network key. 457 */ 458 static int 459 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev, 460 int link_id, u8 key_index, bool pairwise, 461 const u8 *mac_addr, struct key_params *params) 462 { 463 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev); 464 struct mwifiex_wep_key *wep_key; 465 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 466 const u8 *peer_mac = pairwise ? mac_addr : bc_mac; 467 468 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP && 469 (params->cipher == WLAN_CIPHER_SUITE_WEP40 || 470 params->cipher == WLAN_CIPHER_SUITE_WEP104)) { 471 if (params->key && params->key_len) { 472 wep_key = &priv->wep_key[key_index]; 473 memset(wep_key, 0, sizeof(struct mwifiex_wep_key)); 474 memcpy(wep_key->key_material, params->key, 475 params->key_len); 476 wep_key->key_index = key_index; 477 wep_key->key_length = params->key_len; 478 priv->sec_info.wep_enabled = 1; 479 } 480 return 0; 481 } 482 483 if (mwifiex_set_encode(priv, params, params->key, params->key_len, 484 key_index, peer_mac, 0)) { 485 mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n"); 486 return -EFAULT; 487 } 488 489 return 0; 490 } 491 492 /* 493 * CFG802.11 operation handler to set default mgmt key. 494 */ 495 static int 496 mwifiex_cfg80211_set_default_mgmt_key(struct wiphy *wiphy, 497 struct net_device *netdev, 498 int link_id, 499 u8 key_index) 500 { 501 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev); 502 struct mwifiex_ds_encrypt_key encrypt_key; 503 504 wiphy_dbg(wiphy, "set default mgmt key, key index=%d\n", key_index); 505 506 memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key)); 507 encrypt_key.key_len = WLAN_KEY_LEN_CCMP; 508 encrypt_key.key_index = key_index; 509 encrypt_key.is_igtk_def_key = true; 510 eth_broadcast_addr(encrypt_key.mac_addr); 511 512 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, 513 HostCmd_ACT_GEN_SET, true, &encrypt_key, true)) { 514 mwifiex_dbg(priv->adapter, ERROR, 515 "Sending KEY_MATERIAL command failed\n"); 516 return -1; 517 } 518 519 return 0; 520 } 521 522 /* 523 * This function sends domain information to the firmware. 524 * 525 * The following information are passed to the firmware - 526 * - Country codes 527 * - Sub bands (first channel, number of channels, maximum Tx power) 528 */ 529 int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy) 530 { 531 u8 no_of_triplet = 0; 532 struct ieee80211_country_ie_triplet *t; 533 u8 no_of_parsed_chan = 0; 534 u8 first_chan = 0, next_chan = 0, max_pwr = 0; 535 u8 i, flag = 0; 536 enum nl80211_band band; 537 struct ieee80211_supported_band *sband; 538 struct ieee80211_channel *ch; 539 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 540 struct mwifiex_private *priv; 541 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg; 542 543 /* Set country code */ 544 domain_info->country_code[0] = adapter->country_code[0]; 545 domain_info->country_code[1] = adapter->country_code[1]; 546 domain_info->country_code[2] = ' '; 547 548 band = mwifiex_band_to_radio_type(adapter->config_bands); 549 if (!wiphy->bands[band]) { 550 mwifiex_dbg(adapter, ERROR, 551 "11D: setting domain info in FW\n"); 552 return -1; 553 } 554 555 sband = wiphy->bands[band]; 556 557 for (i = 0; i < sband->n_channels ; i++) { 558 ch = &sband->channels[i]; 559 if (ch->flags & IEEE80211_CHAN_DISABLED) 560 continue; 561 562 if (!flag) { 563 flag = 1; 564 first_chan = (u32) ch->hw_value; 565 next_chan = first_chan; 566 max_pwr = ch->max_power; 567 no_of_parsed_chan = 1; 568 continue; 569 } 570 571 if (ch->hw_value == next_chan + 1 && 572 ch->max_power == max_pwr) { 573 next_chan++; 574 no_of_parsed_chan++; 575 } else { 576 t = &domain_info->triplet[no_of_triplet]; 577 t->chans.first_channel = first_chan; 578 t->chans.num_channels = no_of_parsed_chan; 579 t->chans.max_power = max_pwr; 580 no_of_triplet++; 581 first_chan = (u32) ch->hw_value; 582 next_chan = first_chan; 583 max_pwr = ch->max_power; 584 no_of_parsed_chan = 1; 585 } 586 } 587 588 if (flag) { 589 t = &domain_info->triplet[no_of_triplet]; 590 t->chans.first_channel = first_chan; 591 t->chans.num_channels = no_of_parsed_chan; 592 t->chans.max_power = max_pwr; 593 no_of_triplet++; 594 } 595 596 domain_info->no_of_triplet = no_of_triplet; 597 598 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 599 600 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO, 601 HostCmd_ACT_GEN_SET, 0, NULL, false)) { 602 mwifiex_dbg(adapter, INFO, 603 "11D: setting domain info in FW\n"); 604 return -1; 605 } 606 607 return 0; 608 } 609 610 static void mwifiex_reg_apply_radar_flags(struct wiphy *wiphy) 611 { 612 struct ieee80211_supported_band *sband; 613 struct ieee80211_channel *chan; 614 unsigned int i; 615 616 if (!wiphy->bands[NL80211_BAND_5GHZ]) 617 return; 618 sband = wiphy->bands[NL80211_BAND_5GHZ]; 619 620 for (i = 0; i < sband->n_channels; i++) { 621 chan = &sband->channels[i]; 622 if ((!(chan->flags & IEEE80211_CHAN_DISABLED)) && 623 (chan->flags & IEEE80211_CHAN_RADAR)) 624 chan->flags |= IEEE80211_CHAN_NO_IR; 625 } 626 } 627 628 /* 629 * CFG802.11 regulatory domain callback function. 630 * 631 * This function is called when the regulatory domain is changed due to the 632 * following reasons - 633 * - Set by driver 634 * - Set by system core 635 * - Set by user 636 * - Set bt Country IE 637 */ 638 static void mwifiex_reg_notifier(struct wiphy *wiphy, 639 struct regulatory_request *request) 640 { 641 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 642 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 643 MWIFIEX_BSS_ROLE_ANY); 644 mwifiex_dbg(adapter, INFO, 645 "info: cfg80211 regulatory domain callback for %c%c\n", 646 request->alpha2[0], request->alpha2[1]); 647 mwifiex_reg_apply_radar_flags(wiphy); 648 649 switch (request->initiator) { 650 case NL80211_REGDOM_SET_BY_DRIVER: 651 case NL80211_REGDOM_SET_BY_CORE: 652 case NL80211_REGDOM_SET_BY_USER: 653 case NL80211_REGDOM_SET_BY_COUNTRY_IE: 654 break; 655 default: 656 mwifiex_dbg(adapter, ERROR, 657 "unknown regdom initiator: %d\n", 658 request->initiator); 659 return; 660 } 661 662 /* Don't send world or same regdom info to firmware */ 663 if (strncmp(request->alpha2, "00", 2) && 664 strncmp(request->alpha2, adapter->country_code, 665 sizeof(request->alpha2))) { 666 memcpy(adapter->country_code, request->alpha2, 667 sizeof(request->alpha2)); 668 mwifiex_send_domain_info_cmd_fw(wiphy); 669 mwifiex_dnld_txpwr_table(priv); 670 } 671 } 672 673 /* 674 * This function sets the fragmentation threshold. 675 * 676 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE 677 * and MWIFIEX_FRAG_MAX_VALUE. 678 */ 679 static int 680 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr) 681 { 682 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE || 683 frag_thr > MWIFIEX_FRAG_MAX_VALUE) 684 frag_thr = MWIFIEX_FRAG_MAX_VALUE; 685 686 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 687 HostCmd_ACT_GEN_SET, FRAG_THRESH_I, 688 &frag_thr, true); 689 } 690 691 /* 692 * This function sets the RTS threshold. 693 694 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE 695 * and MWIFIEX_RTS_MAX_VALUE. 696 */ 697 static int 698 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr) 699 { 700 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE) 701 rts_thr = MWIFIEX_RTS_MAX_VALUE; 702 703 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 704 HostCmd_ACT_GEN_SET, RTS_THRESH_I, 705 &rts_thr, true); 706 } 707 708 /* 709 * CFG802.11 operation handler to set wiphy parameters. 710 * 711 * This function can be used to set the RTS threshold and the 712 * Fragmentation threshold of the driver. 713 */ 714 static int 715 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 716 { 717 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 718 struct mwifiex_private *priv; 719 struct mwifiex_uap_bss_param *bss_cfg; 720 int ret; 721 722 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 723 724 switch (priv->bss_role) { 725 case MWIFIEX_BSS_ROLE_UAP: 726 if (priv->bss_started) { 727 mwifiex_dbg(adapter, ERROR, 728 "cannot change wiphy params when bss started"); 729 return -EINVAL; 730 } 731 732 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL); 733 if (!bss_cfg) 734 return -ENOMEM; 735 736 mwifiex_set_sys_config_invalid_data(bss_cfg); 737 738 if (changed & WIPHY_PARAM_RTS_THRESHOLD) 739 bss_cfg->rts_threshold = wiphy->rts_threshold; 740 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) 741 bss_cfg->frag_threshold = wiphy->frag_threshold; 742 if (changed & WIPHY_PARAM_RETRY_LONG) 743 bss_cfg->retry_limit = wiphy->retry_long; 744 745 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG, 746 HostCmd_ACT_GEN_SET, 747 UAP_BSS_PARAMS_I, bss_cfg, 748 false); 749 750 kfree(bss_cfg); 751 if (ret) { 752 mwifiex_dbg(adapter, ERROR, 753 "Failed to set wiphy phy params\n"); 754 return ret; 755 } 756 break; 757 758 case MWIFIEX_BSS_ROLE_STA: 759 if (priv->media_connected) { 760 mwifiex_dbg(adapter, ERROR, 761 "cannot change wiphy params when connected"); 762 return -EINVAL; 763 } 764 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 765 ret = mwifiex_set_rts(priv, 766 wiphy->rts_threshold); 767 if (ret) 768 return ret; 769 } 770 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 771 ret = mwifiex_set_frag(priv, 772 wiphy->frag_threshold); 773 if (ret) 774 return ret; 775 } 776 break; 777 } 778 779 return 0; 780 } 781 782 static int 783 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv) 784 { 785 u16 mode = P2P_MODE_DISABLE; 786 787 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, 788 HostCmd_ACT_GEN_SET, 0, &mode, true)) 789 return -1; 790 791 return 0; 792 } 793 794 /* 795 * This function initializes the functionalities for P2P client. 796 * The P2P client initialization sequence is: 797 * disable -> device -> client 798 */ 799 static int 800 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv) 801 { 802 u16 mode; 803 804 if (mwifiex_cfg80211_deinit_p2p(priv)) 805 return -1; 806 807 mode = P2P_MODE_DEVICE; 808 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, 809 HostCmd_ACT_GEN_SET, 0, &mode, true)) 810 return -1; 811 812 mode = P2P_MODE_CLIENT; 813 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, 814 HostCmd_ACT_GEN_SET, 0, &mode, true)) 815 return -1; 816 817 return 0; 818 } 819 820 /* 821 * This function initializes the functionalities for P2P GO. 822 * The P2P GO initialization sequence is: 823 * disable -> device -> GO 824 */ 825 static int 826 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv) 827 { 828 u16 mode; 829 830 if (mwifiex_cfg80211_deinit_p2p(priv)) 831 return -1; 832 833 mode = P2P_MODE_DEVICE; 834 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, 835 HostCmd_ACT_GEN_SET, 0, &mode, true)) 836 return -1; 837 838 mode = P2P_MODE_GO; 839 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, 840 HostCmd_ACT_GEN_SET, 0, &mode, true)) 841 return -1; 842 843 return 0; 844 } 845 846 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv) 847 { 848 struct mwifiex_adapter *adapter = priv->adapter; 849 unsigned long flags; 850 851 priv->mgmt_frame_mask = 0; 852 if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG, 853 HostCmd_ACT_GEN_SET, 0, 854 &priv->mgmt_frame_mask, false)) { 855 mwifiex_dbg(adapter, ERROR, 856 "could not unregister mgmt frame rx\n"); 857 return -1; 858 } 859 860 mwifiex_deauthenticate(priv, NULL); 861 862 spin_lock_irqsave(&adapter->main_proc_lock, flags); 863 adapter->main_locked = true; 864 if (adapter->mwifiex_processing) { 865 spin_unlock_irqrestore(&adapter->main_proc_lock, flags); 866 flush_workqueue(adapter->workqueue); 867 } else { 868 spin_unlock_irqrestore(&adapter->main_proc_lock, flags); 869 } 870 871 spin_lock_bh(&adapter->rx_proc_lock); 872 adapter->rx_locked = true; 873 if (adapter->rx_processing) { 874 spin_unlock_bh(&adapter->rx_proc_lock); 875 flush_workqueue(adapter->rx_workqueue); 876 } else { 877 spin_unlock_bh(&adapter->rx_proc_lock); 878 } 879 880 mwifiex_free_priv(priv); 881 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 882 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; 883 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM; 884 885 return 0; 886 } 887 888 static int 889 mwifiex_init_new_priv_params(struct mwifiex_private *priv, 890 struct net_device *dev, 891 enum nl80211_iftype type) 892 { 893 struct mwifiex_adapter *adapter = priv->adapter; 894 unsigned long flags; 895 896 mwifiex_init_priv(priv); 897 898 priv->bss_mode = type; 899 priv->wdev.iftype = type; 900 901 mwifiex_init_priv_params(priv, priv->netdev); 902 priv->bss_started = 0; 903 904 switch (type) { 905 case NL80211_IFTYPE_STATION: 906 case NL80211_IFTYPE_ADHOC: 907 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 908 priv->bss_type = MWIFIEX_BSS_TYPE_STA; 909 break; 910 case NL80211_IFTYPE_P2P_CLIENT: 911 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 912 priv->bss_type = MWIFIEX_BSS_TYPE_P2P; 913 break; 914 case NL80211_IFTYPE_P2P_GO: 915 priv->bss_role = MWIFIEX_BSS_ROLE_UAP; 916 priv->bss_type = MWIFIEX_BSS_TYPE_P2P; 917 break; 918 case NL80211_IFTYPE_AP: 919 priv->bss_role = MWIFIEX_BSS_ROLE_UAP; 920 priv->bss_type = MWIFIEX_BSS_TYPE_UAP; 921 break; 922 default: 923 mwifiex_dbg(adapter, ERROR, 924 "%s: changing to %d not supported\n", 925 dev->name, type); 926 return -EOPNOTSUPP; 927 } 928 929 spin_lock_irqsave(&adapter->main_proc_lock, flags); 930 adapter->main_locked = false; 931 spin_unlock_irqrestore(&adapter->main_proc_lock, flags); 932 933 spin_lock_bh(&adapter->rx_proc_lock); 934 adapter->rx_locked = false; 935 spin_unlock_bh(&adapter->rx_proc_lock); 936 937 mwifiex_set_mac_address(priv, dev, false, NULL); 938 939 return 0; 940 } 941 942 static bool 943 is_vif_type_change_allowed(struct mwifiex_adapter *adapter, 944 enum nl80211_iftype old_iftype, 945 enum nl80211_iftype new_iftype) 946 { 947 switch (old_iftype) { 948 case NL80211_IFTYPE_ADHOC: 949 switch (new_iftype) { 950 case NL80211_IFTYPE_STATION: 951 return true; 952 case NL80211_IFTYPE_P2P_CLIENT: 953 case NL80211_IFTYPE_P2P_GO: 954 return adapter->curr_iface_comb.p2p_intf != 955 adapter->iface_limit.p2p_intf; 956 case NL80211_IFTYPE_AP: 957 return adapter->curr_iface_comb.uap_intf != 958 adapter->iface_limit.uap_intf; 959 default: 960 return false; 961 } 962 963 case NL80211_IFTYPE_STATION: 964 switch (new_iftype) { 965 case NL80211_IFTYPE_ADHOC: 966 return true; 967 case NL80211_IFTYPE_P2P_CLIENT: 968 case NL80211_IFTYPE_P2P_GO: 969 return adapter->curr_iface_comb.p2p_intf != 970 adapter->iface_limit.p2p_intf; 971 case NL80211_IFTYPE_AP: 972 return adapter->curr_iface_comb.uap_intf != 973 adapter->iface_limit.uap_intf; 974 default: 975 return false; 976 } 977 978 case NL80211_IFTYPE_AP: 979 switch (new_iftype) { 980 case NL80211_IFTYPE_ADHOC: 981 case NL80211_IFTYPE_STATION: 982 return adapter->curr_iface_comb.sta_intf != 983 adapter->iface_limit.sta_intf; 984 case NL80211_IFTYPE_P2P_CLIENT: 985 case NL80211_IFTYPE_P2P_GO: 986 return adapter->curr_iface_comb.p2p_intf != 987 adapter->iface_limit.p2p_intf; 988 default: 989 return false; 990 } 991 992 case NL80211_IFTYPE_P2P_CLIENT: 993 switch (new_iftype) { 994 case NL80211_IFTYPE_ADHOC: 995 case NL80211_IFTYPE_STATION: 996 return true; 997 case NL80211_IFTYPE_P2P_GO: 998 return true; 999 case NL80211_IFTYPE_AP: 1000 return adapter->curr_iface_comb.uap_intf != 1001 adapter->iface_limit.uap_intf; 1002 default: 1003 return false; 1004 } 1005 1006 case NL80211_IFTYPE_P2P_GO: 1007 switch (new_iftype) { 1008 case NL80211_IFTYPE_ADHOC: 1009 case NL80211_IFTYPE_STATION: 1010 return true; 1011 case NL80211_IFTYPE_P2P_CLIENT: 1012 return true; 1013 case NL80211_IFTYPE_AP: 1014 return adapter->curr_iface_comb.uap_intf != 1015 adapter->iface_limit.uap_intf; 1016 default: 1017 return false; 1018 } 1019 1020 default: 1021 break; 1022 } 1023 1024 return false; 1025 } 1026 1027 static void 1028 update_vif_type_counter(struct mwifiex_adapter *adapter, 1029 enum nl80211_iftype iftype, 1030 int change) 1031 { 1032 switch (iftype) { 1033 case NL80211_IFTYPE_UNSPECIFIED: 1034 case NL80211_IFTYPE_ADHOC: 1035 case NL80211_IFTYPE_STATION: 1036 adapter->curr_iface_comb.sta_intf += change; 1037 break; 1038 case NL80211_IFTYPE_AP: 1039 adapter->curr_iface_comb.uap_intf += change; 1040 break; 1041 case NL80211_IFTYPE_P2P_CLIENT: 1042 case NL80211_IFTYPE_P2P_GO: 1043 adapter->curr_iface_comb.p2p_intf += change; 1044 break; 1045 default: 1046 mwifiex_dbg(adapter, ERROR, 1047 "%s: Unsupported iftype passed: %d\n", 1048 __func__, iftype); 1049 break; 1050 } 1051 } 1052 1053 static int 1054 mwifiex_change_vif_to_p2p(struct net_device *dev, 1055 enum nl80211_iftype curr_iftype, 1056 enum nl80211_iftype type, 1057 struct vif_params *params) 1058 { 1059 struct mwifiex_private *priv; 1060 struct mwifiex_adapter *adapter; 1061 1062 priv = mwifiex_netdev_get_priv(dev); 1063 1064 if (!priv) 1065 return -1; 1066 1067 adapter = priv->adapter; 1068 1069 mwifiex_dbg(adapter, INFO, 1070 "%s: changing role to p2p\n", dev->name); 1071 1072 if (mwifiex_deinit_priv_params(priv)) 1073 return -1; 1074 if (mwifiex_init_new_priv_params(priv, dev, type)) 1075 return -1; 1076 1077 update_vif_type_counter(adapter, curr_iftype, -1); 1078 update_vif_type_counter(adapter, type, +1); 1079 dev->ieee80211_ptr->iftype = type; 1080 1081 switch (type) { 1082 case NL80211_IFTYPE_P2P_CLIENT: 1083 if (mwifiex_cfg80211_init_p2p_client(priv)) 1084 return -EFAULT; 1085 break; 1086 case NL80211_IFTYPE_P2P_GO: 1087 if (mwifiex_cfg80211_init_p2p_go(priv)) 1088 return -EFAULT; 1089 break; 1090 default: 1091 mwifiex_dbg(adapter, ERROR, 1092 "%s: changing to %d not supported\n", 1093 dev->name, type); 1094 return -EOPNOTSUPP; 1095 } 1096 1097 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1098 HostCmd_ACT_GEN_SET, 0, NULL, true)) 1099 return -1; 1100 1101 if (mwifiex_sta_init_cmd(priv, false, false)) 1102 return -1; 1103 1104 return 0; 1105 } 1106 1107 static int 1108 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev, 1109 enum nl80211_iftype curr_iftype, 1110 enum nl80211_iftype type, 1111 struct vif_params *params) 1112 { 1113 struct mwifiex_private *priv; 1114 struct mwifiex_adapter *adapter; 1115 1116 priv = mwifiex_netdev_get_priv(dev); 1117 1118 if (!priv) 1119 return -1; 1120 1121 adapter = priv->adapter; 1122 1123 if (type == NL80211_IFTYPE_STATION) 1124 mwifiex_dbg(adapter, INFO, 1125 "%s: changing role to station\n", dev->name); 1126 else 1127 mwifiex_dbg(adapter, INFO, 1128 "%s: changing role to adhoc\n", dev->name); 1129 1130 if (mwifiex_deinit_priv_params(priv)) 1131 return -1; 1132 if (mwifiex_init_new_priv_params(priv, dev, type)) 1133 return -1; 1134 1135 update_vif_type_counter(adapter, curr_iftype, -1); 1136 update_vif_type_counter(adapter, type, +1); 1137 dev->ieee80211_ptr->iftype = type; 1138 1139 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1140 HostCmd_ACT_GEN_SET, 0, NULL, true)) 1141 return -1; 1142 if (mwifiex_sta_init_cmd(priv, false, false)) 1143 return -1; 1144 1145 return 0; 1146 } 1147 1148 static int 1149 mwifiex_change_vif_to_ap(struct net_device *dev, 1150 enum nl80211_iftype curr_iftype, 1151 enum nl80211_iftype type, 1152 struct vif_params *params) 1153 { 1154 struct mwifiex_private *priv; 1155 struct mwifiex_adapter *adapter; 1156 1157 priv = mwifiex_netdev_get_priv(dev); 1158 1159 if (!priv) 1160 return -1; 1161 1162 adapter = priv->adapter; 1163 1164 mwifiex_dbg(adapter, INFO, 1165 "%s: changing role to AP\n", dev->name); 1166 1167 if (mwifiex_deinit_priv_params(priv)) 1168 return -1; 1169 if (mwifiex_init_new_priv_params(priv, dev, type)) 1170 return -1; 1171 1172 update_vif_type_counter(adapter, curr_iftype, -1); 1173 update_vif_type_counter(adapter, type, +1); 1174 dev->ieee80211_ptr->iftype = type; 1175 1176 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1177 HostCmd_ACT_GEN_SET, 0, NULL, true)) 1178 return -1; 1179 if (mwifiex_sta_init_cmd(priv, false, false)) 1180 return -1; 1181 1182 return 0; 1183 } 1184 /* 1185 * CFG802.11 operation handler to change interface type. 1186 */ 1187 static int 1188 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy, 1189 struct net_device *dev, 1190 enum nl80211_iftype type, 1191 struct vif_params *params) 1192 { 1193 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1194 enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype; 1195 1196 if (priv->scan_request) { 1197 mwifiex_dbg(priv->adapter, ERROR, 1198 "change virtual interface: scan in process\n"); 1199 return -EBUSY; 1200 } 1201 1202 if (type == NL80211_IFTYPE_UNSPECIFIED) { 1203 mwifiex_dbg(priv->adapter, INFO, 1204 "%s: no new type specified, keeping old type %d\n", 1205 dev->name, curr_iftype); 1206 return 0; 1207 } 1208 1209 if (curr_iftype == type) { 1210 mwifiex_dbg(priv->adapter, INFO, 1211 "%s: interface already is of type %d\n", 1212 dev->name, curr_iftype); 1213 return 0; 1214 } 1215 1216 if (!is_vif_type_change_allowed(priv->adapter, curr_iftype, type)) { 1217 mwifiex_dbg(priv->adapter, ERROR, 1218 "%s: change from type %d to %d is not allowed\n", 1219 dev->name, curr_iftype, type); 1220 return -EOPNOTSUPP; 1221 } 1222 1223 switch (curr_iftype) { 1224 case NL80211_IFTYPE_ADHOC: 1225 switch (type) { 1226 case NL80211_IFTYPE_STATION: 1227 priv->bss_mode = type; 1228 priv->sec_info.authentication_mode = 1229 NL80211_AUTHTYPE_OPEN_SYSTEM; 1230 dev->ieee80211_ptr->iftype = type; 1231 mwifiex_deauthenticate(priv, NULL); 1232 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1233 HostCmd_ACT_GEN_SET, 0, NULL, 1234 true); 1235 case NL80211_IFTYPE_P2P_CLIENT: 1236 case NL80211_IFTYPE_P2P_GO: 1237 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1238 type, params); 1239 case NL80211_IFTYPE_AP: 1240 return mwifiex_change_vif_to_ap(dev, curr_iftype, type, 1241 params); 1242 default: 1243 goto errnotsupp; 1244 } 1245 1246 case NL80211_IFTYPE_STATION: 1247 switch (type) { 1248 case NL80211_IFTYPE_ADHOC: 1249 priv->bss_mode = type; 1250 priv->sec_info.authentication_mode = 1251 NL80211_AUTHTYPE_OPEN_SYSTEM; 1252 dev->ieee80211_ptr->iftype = type; 1253 mwifiex_deauthenticate(priv, NULL); 1254 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1255 HostCmd_ACT_GEN_SET, 0, NULL, 1256 true); 1257 case NL80211_IFTYPE_P2P_CLIENT: 1258 case NL80211_IFTYPE_P2P_GO: 1259 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1260 type, params); 1261 case NL80211_IFTYPE_AP: 1262 return mwifiex_change_vif_to_ap(dev, curr_iftype, type, 1263 params); 1264 default: 1265 goto errnotsupp; 1266 } 1267 1268 case NL80211_IFTYPE_AP: 1269 switch (type) { 1270 case NL80211_IFTYPE_ADHOC: 1271 case NL80211_IFTYPE_STATION: 1272 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype, 1273 type, params); 1274 break; 1275 case NL80211_IFTYPE_P2P_CLIENT: 1276 case NL80211_IFTYPE_P2P_GO: 1277 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1278 type, params); 1279 default: 1280 goto errnotsupp; 1281 } 1282 1283 case NL80211_IFTYPE_P2P_CLIENT: 1284 if (mwifiex_cfg80211_deinit_p2p(priv)) 1285 return -EFAULT; 1286 1287 switch (type) { 1288 case NL80211_IFTYPE_ADHOC: 1289 case NL80211_IFTYPE_STATION: 1290 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype, 1291 type, params); 1292 case NL80211_IFTYPE_P2P_GO: 1293 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1294 type, params); 1295 case NL80211_IFTYPE_AP: 1296 return mwifiex_change_vif_to_ap(dev, curr_iftype, type, 1297 params); 1298 default: 1299 goto errnotsupp; 1300 } 1301 1302 case NL80211_IFTYPE_P2P_GO: 1303 if (mwifiex_cfg80211_deinit_p2p(priv)) 1304 return -EFAULT; 1305 1306 switch (type) { 1307 case NL80211_IFTYPE_ADHOC: 1308 case NL80211_IFTYPE_STATION: 1309 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype, 1310 type, params); 1311 case NL80211_IFTYPE_P2P_CLIENT: 1312 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1313 type, params); 1314 case NL80211_IFTYPE_AP: 1315 return mwifiex_change_vif_to_ap(dev, curr_iftype, type, 1316 params); 1317 default: 1318 goto errnotsupp; 1319 } 1320 1321 default: 1322 goto errnotsupp; 1323 } 1324 1325 1326 return 0; 1327 1328 errnotsupp: 1329 mwifiex_dbg(priv->adapter, ERROR, 1330 "unsupported interface type transition: %d to %d\n", 1331 curr_iftype, type); 1332 return -EOPNOTSUPP; 1333 } 1334 1335 static void 1336 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 rateinfo, u8 htinfo, 1337 struct rate_info *rate) 1338 { 1339 struct mwifiex_adapter *adapter = priv->adapter; 1340 1341 if (adapter->is_hw_11ac_capable) { 1342 /* bit[1-0]: 00=LG 01=HT 10=VHT */ 1343 if (htinfo & BIT(0)) { 1344 /* HT */ 1345 rate->mcs = rateinfo; 1346 rate->flags |= RATE_INFO_FLAGS_MCS; 1347 } 1348 if (htinfo & BIT(1)) { 1349 /* VHT */ 1350 rate->mcs = rateinfo & 0x0F; 1351 rate->flags |= RATE_INFO_FLAGS_VHT_MCS; 1352 } 1353 1354 if (htinfo & (BIT(1) | BIT(0))) { 1355 /* HT or VHT */ 1356 switch (htinfo & (BIT(3) | BIT(2))) { 1357 case 0: 1358 rate->bw = RATE_INFO_BW_20; 1359 break; 1360 case (BIT(2)): 1361 rate->bw = RATE_INFO_BW_40; 1362 break; 1363 case (BIT(3)): 1364 rate->bw = RATE_INFO_BW_80; 1365 break; 1366 case (BIT(3) | BIT(2)): 1367 rate->bw = RATE_INFO_BW_160; 1368 break; 1369 } 1370 1371 if (htinfo & BIT(4)) 1372 rate->flags |= RATE_INFO_FLAGS_SHORT_GI; 1373 1374 if ((rateinfo >> 4) == 1) 1375 rate->nss = 2; 1376 else 1377 rate->nss = 1; 1378 } 1379 } else { 1380 /* 1381 * Bit 0 in htinfo indicates that current rate is 11n. Valid 1382 * MCS index values for us are 0 to 15. 1383 */ 1384 if ((htinfo & BIT(0)) && (rateinfo < 16)) { 1385 rate->mcs = rateinfo; 1386 rate->flags |= RATE_INFO_FLAGS_MCS; 1387 rate->bw = RATE_INFO_BW_20; 1388 if (htinfo & BIT(1)) 1389 rate->bw = RATE_INFO_BW_40; 1390 if (htinfo & BIT(2)) 1391 rate->flags |= RATE_INFO_FLAGS_SHORT_GI; 1392 } 1393 } 1394 1395 /* Decode legacy rates for non-HT. */ 1396 if (!(htinfo & (BIT(0) | BIT(1)))) { 1397 /* Bitrates in multiples of 100kb/s. */ 1398 static const int legacy_rates[] = { 1399 [0] = 10, 1400 [1] = 20, 1401 [2] = 55, 1402 [3] = 110, 1403 [4] = 60, /* MWIFIEX_RATE_INDEX_OFDM0 */ 1404 [5] = 60, 1405 [6] = 90, 1406 [7] = 120, 1407 [8] = 180, 1408 [9] = 240, 1409 [10] = 360, 1410 [11] = 480, 1411 [12] = 540, 1412 }; 1413 if (rateinfo < ARRAY_SIZE(legacy_rates)) 1414 rate->legacy = legacy_rates[rateinfo]; 1415 } 1416 } 1417 1418 /* 1419 * This function dumps the station information on a buffer. 1420 * 1421 * The following information are shown - 1422 * - Total bytes transmitted 1423 * - Total bytes received 1424 * - Total packets transmitted 1425 * - Total packets received 1426 * - Signal quality level 1427 * - Transmission rate 1428 */ 1429 static int 1430 mwifiex_dump_station_info(struct mwifiex_private *priv, 1431 struct mwifiex_sta_node *node, 1432 struct station_info *sinfo) 1433 { 1434 u32 rate; 1435 1436 sinfo->filled = BIT_ULL(NL80211_STA_INFO_RX_BYTES) | BIT_ULL(NL80211_STA_INFO_TX_BYTES) | 1437 BIT_ULL(NL80211_STA_INFO_RX_PACKETS) | BIT_ULL(NL80211_STA_INFO_TX_PACKETS) | 1438 BIT_ULL(NL80211_STA_INFO_TX_BITRATE) | 1439 BIT_ULL(NL80211_STA_INFO_SIGNAL) | BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 1440 1441 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { 1442 if (!node) 1443 return -ENOENT; 1444 1445 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME) | 1446 BIT_ULL(NL80211_STA_INFO_TX_FAILED); 1447 sinfo->inactive_time = 1448 jiffies_to_msecs(jiffies - node->stats.last_rx); 1449 1450 sinfo->signal = node->stats.rssi; 1451 sinfo->signal_avg = node->stats.rssi; 1452 sinfo->rx_bytes = node->stats.rx_bytes; 1453 sinfo->tx_bytes = node->stats.tx_bytes; 1454 sinfo->rx_packets = node->stats.rx_packets; 1455 sinfo->tx_packets = node->stats.tx_packets; 1456 sinfo->tx_failed = node->stats.tx_failed; 1457 1458 mwifiex_parse_htinfo(priv, priv->tx_rate, 1459 node->stats.last_tx_htinfo, 1460 &sinfo->txrate); 1461 sinfo->txrate.legacy = node->stats.last_tx_rate * 5; 1462 1463 return 0; 1464 } 1465 1466 /* Get signal information from the firmware */ 1467 if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO, 1468 HostCmd_ACT_GEN_GET, 0, NULL, true)) { 1469 mwifiex_dbg(priv->adapter, ERROR, 1470 "failed to get signal information\n"); 1471 return -EFAULT; 1472 } 1473 1474 if (mwifiex_drv_get_data_rate(priv, &rate)) { 1475 mwifiex_dbg(priv->adapter, ERROR, 1476 "getting data rate error\n"); 1477 return -EFAULT; 1478 } 1479 1480 /* Get DTIM period information from firmware */ 1481 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 1482 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I, 1483 &priv->dtim_period, true); 1484 1485 mwifiex_parse_htinfo(priv, priv->tx_rate, priv->tx_htinfo, 1486 &sinfo->txrate); 1487 1488 sinfo->signal_avg = priv->bcn_rssi_avg; 1489 sinfo->rx_bytes = priv->stats.rx_bytes; 1490 sinfo->tx_bytes = priv->stats.tx_bytes; 1491 sinfo->rx_packets = priv->stats.rx_packets; 1492 sinfo->tx_packets = priv->stats.tx_packets; 1493 sinfo->signal = priv->bcn_rssi_avg; 1494 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */ 1495 sinfo->txrate.legacy = rate * 5; 1496 1497 sinfo->filled |= BIT(NL80211_STA_INFO_RX_BITRATE); 1498 mwifiex_parse_htinfo(priv, priv->rxpd_rate, priv->rxpd_htinfo, 1499 &sinfo->rxrate); 1500 1501 if (priv->bss_mode == NL80211_IFTYPE_STATION) { 1502 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BSS_PARAM); 1503 sinfo->bss_param.flags = 0; 1504 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap & 1505 WLAN_CAPABILITY_SHORT_PREAMBLE) 1506 sinfo->bss_param.flags |= 1507 BSS_PARAM_FLAGS_SHORT_PREAMBLE; 1508 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap & 1509 WLAN_CAPABILITY_SHORT_SLOT_TIME) 1510 sinfo->bss_param.flags |= 1511 BSS_PARAM_FLAGS_SHORT_SLOT_TIME; 1512 sinfo->bss_param.dtim_period = priv->dtim_period; 1513 sinfo->bss_param.beacon_interval = 1514 priv->curr_bss_params.bss_descriptor.beacon_period; 1515 } 1516 1517 return 0; 1518 } 1519 1520 /* 1521 * CFG802.11 operation handler to get station information. 1522 * 1523 * This function only works in connected mode, and dumps the 1524 * requested station information, if available. 1525 */ 1526 static int 1527 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev, 1528 const u8 *mac, struct station_info *sinfo) 1529 { 1530 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1531 1532 if (!priv->media_connected) 1533 return -ENOENT; 1534 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN)) 1535 return -ENOENT; 1536 1537 return mwifiex_dump_station_info(priv, NULL, sinfo); 1538 } 1539 1540 /* 1541 * CFG802.11 operation handler to dump station information. 1542 */ 1543 static int 1544 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 1545 int idx, u8 *mac, struct station_info *sinfo) 1546 { 1547 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1548 struct mwifiex_sta_node *node; 1549 int i; 1550 1551 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) && 1552 priv->media_connected && idx == 0) { 1553 ether_addr_copy(mac, priv->cfg_bssid); 1554 return mwifiex_dump_station_info(priv, NULL, sinfo); 1555 } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { 1556 mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST, 1557 HostCmd_ACT_GEN_GET, 0, NULL, true); 1558 1559 i = 0; 1560 list_for_each_entry(node, &priv->sta_list, list) { 1561 if (i++ != idx) 1562 continue; 1563 ether_addr_copy(mac, node->mac_addr); 1564 return mwifiex_dump_station_info(priv, node, sinfo); 1565 } 1566 } 1567 1568 return -ENOENT; 1569 } 1570 1571 static int 1572 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 1573 int idx, struct survey_info *survey) 1574 { 1575 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1576 struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats; 1577 enum nl80211_band band; 1578 1579 mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx); 1580 1581 memset(survey, 0, sizeof(struct survey_info)); 1582 1583 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) && 1584 priv->media_connected && idx == 0) { 1585 u8 curr_bss_band = priv->curr_bss_params.band; 1586 u32 chan = priv->curr_bss_params.bss_descriptor.channel; 1587 1588 band = mwifiex_band_to_radio_type(curr_bss_band); 1589 survey->channel = ieee80211_get_channel(wiphy, 1590 ieee80211_channel_to_frequency(chan, band)); 1591 1592 if (priv->bcn_nf_last) { 1593 survey->filled = SURVEY_INFO_NOISE_DBM; 1594 survey->noise = priv->bcn_nf_last; 1595 } 1596 return 0; 1597 } 1598 1599 if (idx >= priv->adapter->num_in_chan_stats) 1600 return -ENOENT; 1601 1602 if (!pchan_stats[idx].cca_scan_dur) 1603 return 0; 1604 1605 band = pchan_stats[idx].bandcfg; 1606 survey->channel = ieee80211_get_channel(wiphy, 1607 ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band)); 1608 survey->filled = SURVEY_INFO_NOISE_DBM | 1609 SURVEY_INFO_TIME | 1610 SURVEY_INFO_TIME_BUSY; 1611 survey->noise = pchan_stats[idx].noise; 1612 survey->time = pchan_stats[idx].cca_scan_dur; 1613 survey->time_busy = pchan_stats[idx].cca_busy_dur; 1614 1615 return 0; 1616 } 1617 1618 /* Supported rates to be advertised to the cfg80211 */ 1619 static struct ieee80211_rate mwifiex_rates[] = { 1620 {.bitrate = 10, .hw_value = 2, }, 1621 {.bitrate = 20, .hw_value = 4, }, 1622 {.bitrate = 55, .hw_value = 11, }, 1623 {.bitrate = 110, .hw_value = 22, }, 1624 {.bitrate = 60, .hw_value = 12, }, 1625 {.bitrate = 90, .hw_value = 18, }, 1626 {.bitrate = 120, .hw_value = 24, }, 1627 {.bitrate = 180, .hw_value = 36, }, 1628 {.bitrate = 240, .hw_value = 48, }, 1629 {.bitrate = 360, .hw_value = 72, }, 1630 {.bitrate = 480, .hw_value = 96, }, 1631 {.bitrate = 540, .hw_value = 108, }, 1632 }; 1633 1634 /* Channel definitions to be advertised to cfg80211 */ 1635 static struct ieee80211_channel mwifiex_channels_2ghz[] = { 1636 {.center_freq = 2412, .hw_value = 1, }, 1637 {.center_freq = 2417, .hw_value = 2, }, 1638 {.center_freq = 2422, .hw_value = 3, }, 1639 {.center_freq = 2427, .hw_value = 4, }, 1640 {.center_freq = 2432, .hw_value = 5, }, 1641 {.center_freq = 2437, .hw_value = 6, }, 1642 {.center_freq = 2442, .hw_value = 7, }, 1643 {.center_freq = 2447, .hw_value = 8, }, 1644 {.center_freq = 2452, .hw_value = 9, }, 1645 {.center_freq = 2457, .hw_value = 10, }, 1646 {.center_freq = 2462, .hw_value = 11, }, 1647 {.center_freq = 2467, .hw_value = 12, }, 1648 {.center_freq = 2472, .hw_value = 13, }, 1649 {.center_freq = 2484, .hw_value = 14, }, 1650 }; 1651 1652 static struct ieee80211_supported_band mwifiex_band_2ghz = { 1653 .channels = mwifiex_channels_2ghz, 1654 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz), 1655 .bitrates = mwifiex_rates, 1656 .n_bitrates = ARRAY_SIZE(mwifiex_rates), 1657 }; 1658 1659 static struct ieee80211_channel mwifiex_channels_5ghz[] = { 1660 {.center_freq = 5040, .hw_value = 8, }, 1661 {.center_freq = 5060, .hw_value = 12, }, 1662 {.center_freq = 5080, .hw_value = 16, }, 1663 {.center_freq = 5170, .hw_value = 34, }, 1664 {.center_freq = 5190, .hw_value = 38, }, 1665 {.center_freq = 5210, .hw_value = 42, }, 1666 {.center_freq = 5230, .hw_value = 46, }, 1667 {.center_freq = 5180, .hw_value = 36, }, 1668 {.center_freq = 5200, .hw_value = 40, }, 1669 {.center_freq = 5220, .hw_value = 44, }, 1670 {.center_freq = 5240, .hw_value = 48, }, 1671 {.center_freq = 5260, .hw_value = 52, }, 1672 {.center_freq = 5280, .hw_value = 56, }, 1673 {.center_freq = 5300, .hw_value = 60, }, 1674 {.center_freq = 5320, .hw_value = 64, }, 1675 {.center_freq = 5500, .hw_value = 100, }, 1676 {.center_freq = 5520, .hw_value = 104, }, 1677 {.center_freq = 5540, .hw_value = 108, }, 1678 {.center_freq = 5560, .hw_value = 112, }, 1679 {.center_freq = 5580, .hw_value = 116, }, 1680 {.center_freq = 5600, .hw_value = 120, }, 1681 {.center_freq = 5620, .hw_value = 124, }, 1682 {.center_freq = 5640, .hw_value = 128, }, 1683 {.center_freq = 5660, .hw_value = 132, }, 1684 {.center_freq = 5680, .hw_value = 136, }, 1685 {.center_freq = 5700, .hw_value = 140, }, 1686 {.center_freq = 5745, .hw_value = 149, }, 1687 {.center_freq = 5765, .hw_value = 153, }, 1688 {.center_freq = 5785, .hw_value = 157, }, 1689 {.center_freq = 5805, .hw_value = 161, }, 1690 {.center_freq = 5825, .hw_value = 165, }, 1691 }; 1692 1693 static struct ieee80211_supported_band mwifiex_band_5ghz = { 1694 .channels = mwifiex_channels_5ghz, 1695 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz), 1696 .bitrates = mwifiex_rates + 4, 1697 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4, 1698 }; 1699 1700 1701 /* Supported crypto cipher suits to be advertised to cfg80211 */ 1702 static const u32 mwifiex_cipher_suites[] = { 1703 WLAN_CIPHER_SUITE_WEP40, 1704 WLAN_CIPHER_SUITE_WEP104, 1705 WLAN_CIPHER_SUITE_TKIP, 1706 WLAN_CIPHER_SUITE_CCMP, 1707 WLAN_CIPHER_SUITE_SMS4, 1708 WLAN_CIPHER_SUITE_AES_CMAC, 1709 }; 1710 1711 /* Supported mgmt frame types to be advertised to cfg80211 */ 1712 static const struct ieee80211_txrx_stypes 1713 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = { 1714 [NL80211_IFTYPE_STATION] = { 1715 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1716 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 1717 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1718 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 1719 }, 1720 [NL80211_IFTYPE_AP] = { 1721 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1722 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 1723 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1724 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 1725 }, 1726 [NL80211_IFTYPE_P2P_CLIENT] = { 1727 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1728 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 1729 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1730 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 1731 }, 1732 [NL80211_IFTYPE_P2P_GO] = { 1733 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1734 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 1735 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1736 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 1737 }, 1738 }; 1739 1740 /* 1741 * CFG802.11 operation handler for setting bit rates. 1742 * 1743 * Function configures data rates to firmware using bitrate mask 1744 * provided by cfg80211. 1745 */ 1746 static int 1747 mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy, 1748 struct net_device *dev, 1749 unsigned int link_id, 1750 const u8 *peer, 1751 const struct cfg80211_bitrate_mask *mask) 1752 { 1753 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1754 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE]; 1755 enum nl80211_band band; 1756 struct mwifiex_adapter *adapter = priv->adapter; 1757 1758 if (!priv->media_connected) { 1759 mwifiex_dbg(adapter, ERROR, 1760 "Can not set Tx data rate in disconnected state\n"); 1761 return -EINVAL; 1762 } 1763 1764 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 1765 1766 memset(bitmap_rates, 0, sizeof(bitmap_rates)); 1767 1768 /* Fill HR/DSSS rates. */ 1769 if (band == NL80211_BAND_2GHZ) 1770 bitmap_rates[0] = mask->control[band].legacy & 0x000f; 1771 1772 /* Fill OFDM rates */ 1773 if (band == NL80211_BAND_2GHZ) 1774 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4; 1775 else 1776 bitmap_rates[1] = mask->control[band].legacy; 1777 1778 /* Fill HT MCS rates */ 1779 bitmap_rates[2] = mask->control[band].ht_mcs[0]; 1780 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2) 1781 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8; 1782 1783 /* Fill VHT MCS rates */ 1784 if (adapter->fw_api_ver == MWIFIEX_FW_V15) { 1785 bitmap_rates[10] = mask->control[band].vht_mcs[0]; 1786 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2) 1787 bitmap_rates[11] = mask->control[band].vht_mcs[1]; 1788 } 1789 1790 return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG, 1791 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true); 1792 } 1793 1794 /* 1795 * CFG802.11 operation handler for connection quality monitoring. 1796 * 1797 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI 1798 * events to FW. 1799 */ 1800 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy, 1801 struct net_device *dev, 1802 s32 rssi_thold, u32 rssi_hyst) 1803 { 1804 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1805 struct mwifiex_ds_misc_subsc_evt subsc_evt; 1806 1807 priv->cqm_rssi_thold = rssi_thold; 1808 priv->cqm_rssi_hyst = rssi_hyst; 1809 1810 memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt)); 1811 subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH; 1812 1813 /* Subscribe/unsubscribe low and high rssi events */ 1814 if (rssi_thold && rssi_hyst) { 1815 subsc_evt.action = HostCmd_ACT_BITWISE_SET; 1816 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold); 1817 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold); 1818 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1; 1819 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1; 1820 return mwifiex_send_cmd(priv, 1821 HostCmd_CMD_802_11_SUBSCRIBE_EVENT, 1822 0, 0, &subsc_evt, true); 1823 } else { 1824 subsc_evt.action = HostCmd_ACT_BITWISE_CLR; 1825 return mwifiex_send_cmd(priv, 1826 HostCmd_CMD_802_11_SUBSCRIBE_EVENT, 1827 0, 0, &subsc_evt, true); 1828 } 1829 1830 return 0; 1831 } 1832 1833 /* cfg80211 operation handler for change_beacon. 1834 * Function retrieves and sets modified management IEs to FW. 1835 */ 1836 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy, 1837 struct net_device *dev, 1838 struct cfg80211_ap_update *params) 1839 { 1840 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1841 struct mwifiex_adapter *adapter = priv->adapter; 1842 struct cfg80211_beacon_data *data = ¶ms->beacon; 1843 1844 mwifiex_cancel_scan(adapter); 1845 1846 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) { 1847 mwifiex_dbg(priv->adapter, ERROR, 1848 "%s: bss_type mismatched\n", __func__); 1849 return -EINVAL; 1850 } 1851 1852 if (!priv->bss_started) { 1853 mwifiex_dbg(priv->adapter, ERROR, 1854 "%s: bss not started\n", __func__); 1855 return -EINVAL; 1856 } 1857 1858 if (mwifiex_set_mgmt_ies(priv, data)) { 1859 mwifiex_dbg(priv->adapter, ERROR, 1860 "%s: setting mgmt ies failed\n", __func__); 1861 return -EFAULT; 1862 } 1863 1864 return 0; 1865 } 1866 1867 /* cfg80211 operation handler for del_station. 1868 * Function deauthenticates station which value is provided in mac parameter. 1869 * If mac is NULL/broadcast, all stations in associated station list are 1870 * deauthenticated. If bss is not started or there are no stations in 1871 * associated stations list, no action is taken. 1872 */ 1873 static int 1874 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1875 struct station_del_parameters *params) 1876 { 1877 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1878 struct mwifiex_sta_node *sta_node; 1879 u8 deauth_mac[ETH_ALEN]; 1880 1881 if (!priv->bss_started && priv->wdev.cac_started) { 1882 mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__); 1883 mwifiex_abort_cac(priv); 1884 } 1885 1886 if (list_empty(&priv->sta_list) || !priv->bss_started) 1887 return 0; 1888 1889 if (!params->mac || is_broadcast_ether_addr(params->mac)) 1890 return 0; 1891 1892 mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n", 1893 __func__, params->mac); 1894 1895 eth_zero_addr(deauth_mac); 1896 1897 spin_lock_bh(&priv->sta_list_spinlock); 1898 sta_node = mwifiex_get_sta_entry(priv, params->mac); 1899 if (sta_node) 1900 ether_addr_copy(deauth_mac, params->mac); 1901 spin_unlock_bh(&priv->sta_list_spinlock); 1902 1903 if (is_valid_ether_addr(deauth_mac)) { 1904 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH, 1905 HostCmd_ACT_GEN_SET, 0, 1906 deauth_mac, true)) 1907 return -1; 1908 } 1909 1910 return 0; 1911 } 1912 1913 static int 1914 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 1915 { 1916 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 1917 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 1918 MWIFIEX_BSS_ROLE_ANY); 1919 struct mwifiex_ds_ant_cfg ant_cfg; 1920 1921 if (!tx_ant || !rx_ant) 1922 return -EOPNOTSUPP; 1923 1924 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) { 1925 /* Not a MIMO chip. User should provide specific antenna number 1926 * for Tx/Rx path or enable all antennas for diversity 1927 */ 1928 if (tx_ant != rx_ant) 1929 return -EOPNOTSUPP; 1930 1931 if ((tx_ant & (tx_ant - 1)) && 1932 (tx_ant != BIT(adapter->number_of_antenna) - 1)) 1933 return -EOPNOTSUPP; 1934 1935 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) && 1936 (priv->adapter->number_of_antenna > 1)) { 1937 tx_ant = RF_ANTENNA_AUTO; 1938 rx_ant = RF_ANTENNA_AUTO; 1939 } 1940 } else { 1941 struct ieee80211_sta_ht_cap *ht_info; 1942 int rx_mcs_supp; 1943 enum nl80211_band band; 1944 1945 if ((tx_ant == 0x1 && rx_ant == 0x1)) { 1946 adapter->user_dev_mcs_support = HT_STREAM_1X1; 1947 if (adapter->is_hw_11ac_capable) 1948 adapter->usr_dot_11ac_mcs_support = 1949 MWIFIEX_11AC_MCS_MAP_1X1; 1950 } else { 1951 adapter->user_dev_mcs_support = HT_STREAM_2X2; 1952 if (adapter->is_hw_11ac_capable) 1953 adapter->usr_dot_11ac_mcs_support = 1954 MWIFIEX_11AC_MCS_MAP_2X2; 1955 } 1956 1957 for (band = 0; band < NUM_NL80211_BANDS; band++) { 1958 if (!adapter->wiphy->bands[band]) 1959 continue; 1960 1961 ht_info = &adapter->wiphy->bands[band]->ht_cap; 1962 rx_mcs_supp = 1963 GET_RXMCSSUPP(adapter->user_dev_mcs_support); 1964 memset(&ht_info->mcs, 0, adapter->number_of_antenna); 1965 memset(&ht_info->mcs, 0xff, rx_mcs_supp); 1966 } 1967 } 1968 1969 ant_cfg.tx_ant = tx_ant; 1970 ant_cfg.rx_ant = rx_ant; 1971 1972 return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA, 1973 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true); 1974 } 1975 1976 static int 1977 mwifiex_cfg80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 1978 { 1979 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 1980 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 1981 MWIFIEX_BSS_ROLE_ANY); 1982 mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA, 1983 HostCmd_ACT_GEN_GET, 0, NULL, true); 1984 1985 *tx_ant = priv->tx_ant; 1986 *rx_ant = priv->rx_ant; 1987 1988 return 0; 1989 } 1990 1991 /* cfg80211 operation handler for stop ap. 1992 * Function stops BSS running at uAP interface. 1993 */ 1994 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1995 unsigned int link_id) 1996 { 1997 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1998 1999 mwifiex_abort_cac(priv); 2000 2001 if (mwifiex_del_mgmt_ies(priv)) 2002 mwifiex_dbg(priv->adapter, ERROR, 2003 "Failed to delete mgmt IEs!\n"); 2004 2005 priv->ap_11n_enabled = 0; 2006 memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg)); 2007 2008 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP, 2009 HostCmd_ACT_GEN_SET, 0, NULL, true)) { 2010 mwifiex_dbg(priv->adapter, ERROR, 2011 "Failed to stop the BSS\n"); 2012 return -1; 2013 } 2014 2015 if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET, 2016 HostCmd_ACT_GEN_SET, 0, NULL, true)) { 2017 mwifiex_dbg(priv->adapter, ERROR, 2018 "Failed to reset BSS\n"); 2019 return -1; 2020 } 2021 2022 if (netif_carrier_ok(priv->netdev)) 2023 netif_carrier_off(priv->netdev); 2024 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter); 2025 2026 return 0; 2027 } 2028 2029 /* cfg80211 operation handler for start_ap. 2030 * Function sets beacon period, DTIM period, SSID and security into 2031 * AP config structure. 2032 * AP is configured with these settings and BSS is started. 2033 */ 2034 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy, 2035 struct net_device *dev, 2036 struct cfg80211_ap_settings *params) 2037 { 2038 struct mwifiex_uap_bss_param *bss_cfg; 2039 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2040 2041 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) 2042 return -1; 2043 2044 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL); 2045 if (!bss_cfg) 2046 return -ENOMEM; 2047 2048 mwifiex_set_sys_config_invalid_data(bss_cfg); 2049 2050 if (params->beacon_interval) 2051 bss_cfg->beacon_period = params->beacon_interval; 2052 if (params->dtim_period) 2053 bss_cfg->dtim_period = params->dtim_period; 2054 2055 if (params->ssid && params->ssid_len) { 2056 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len); 2057 bss_cfg->ssid.ssid_len = params->ssid_len; 2058 } 2059 if (params->inactivity_timeout > 0) { 2060 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */ 2061 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout; 2062 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout; 2063 } 2064 2065 switch (params->hidden_ssid) { 2066 case NL80211_HIDDEN_SSID_NOT_IN_USE: 2067 bss_cfg->bcast_ssid_ctl = 1; 2068 break; 2069 case NL80211_HIDDEN_SSID_ZERO_LEN: 2070 bss_cfg->bcast_ssid_ctl = 0; 2071 break; 2072 case NL80211_HIDDEN_SSID_ZERO_CONTENTS: 2073 bss_cfg->bcast_ssid_ctl = 2; 2074 break; 2075 default: 2076 kfree(bss_cfg); 2077 return -EINVAL; 2078 } 2079 2080 mwifiex_uap_set_channel(priv, bss_cfg, params->chandef); 2081 mwifiex_set_uap_rates(bss_cfg, params); 2082 2083 if (mwifiex_set_secure_params(priv, bss_cfg, params)) { 2084 mwifiex_dbg(priv->adapter, ERROR, 2085 "Failed to parse security parameters!\n"); 2086 goto out; 2087 } 2088 2089 mwifiex_set_ht_params(priv, bss_cfg, params); 2090 2091 if (priv->adapter->is_hw_11ac_capable) { 2092 mwifiex_set_vht_params(priv, bss_cfg, params); 2093 mwifiex_set_vht_width(priv, params->chandef.width, 2094 priv->ap_11ac_enabled); 2095 } 2096 2097 if (priv->ap_11ac_enabled) 2098 mwifiex_set_11ac_ba_params(priv); 2099 else 2100 mwifiex_set_ba_params(priv); 2101 2102 mwifiex_set_wmm_params(priv, bss_cfg, params); 2103 2104 if (mwifiex_is_11h_active(priv)) 2105 mwifiex_set_tpc_params(priv, bss_cfg, params); 2106 2107 if (mwifiex_is_11h_active(priv) && 2108 !cfg80211_chandef_dfs_required(wiphy, ¶ms->chandef, 2109 priv->bss_mode)) { 2110 mwifiex_dbg(priv->adapter, INFO, 2111 "Disable 11h extensions in FW\n"); 2112 if (mwifiex_11h_activate(priv, false)) { 2113 mwifiex_dbg(priv->adapter, ERROR, 2114 "Failed to disable 11h extensions!!"); 2115 goto out; 2116 } 2117 priv->state_11h.is_11h_active = false; 2118 } 2119 2120 mwifiex_config_uap_11d(priv, ¶ms->beacon); 2121 2122 if (mwifiex_config_start_uap(priv, bss_cfg)) { 2123 mwifiex_dbg(priv->adapter, ERROR, 2124 "Failed to start AP\n"); 2125 goto out; 2126 } 2127 2128 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon)) 2129 goto out; 2130 2131 if (!netif_carrier_ok(priv->netdev)) 2132 netif_carrier_on(priv->netdev); 2133 mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter); 2134 2135 memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg)); 2136 kfree(bss_cfg); 2137 return 0; 2138 2139 out: 2140 kfree(bss_cfg); 2141 return -1; 2142 } 2143 2144 /* 2145 * CFG802.11 operation handler for disconnection request. 2146 * 2147 * This function does not work when there is already a disconnection 2148 * procedure going on. 2149 */ 2150 static int 2151 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev, 2152 u16 reason_code) 2153 { 2154 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2155 2156 if (!mwifiex_stop_bg_scan(priv)) 2157 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0); 2158 2159 if (mwifiex_deauthenticate(priv, NULL)) 2160 return -EFAULT; 2161 2162 eth_zero_addr(priv->cfg_bssid); 2163 priv->hs2_enabled = false; 2164 2165 return 0; 2166 } 2167 2168 /* 2169 * This function informs the CFG802.11 subsystem of a new IBSS. 2170 * 2171 * The following information are sent to the CFG802.11 subsystem 2172 * to register the new IBSS. If we do not register the new IBSS, 2173 * a kernel panic will result. 2174 * - SSID 2175 * - SSID length 2176 * - BSSID 2177 * - Channel 2178 */ 2179 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv) 2180 { 2181 struct ieee80211_channel *chan; 2182 struct mwifiex_bss_info bss_info; 2183 struct cfg80211_bss *bss; 2184 int ie_len; 2185 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)]; 2186 enum nl80211_band band; 2187 2188 if (mwifiex_get_bss_info(priv, &bss_info)) 2189 return -1; 2190 2191 ie_buf[0] = WLAN_EID_SSID; 2192 ie_buf[1] = bss_info.ssid.ssid_len; 2193 2194 memcpy(&ie_buf[sizeof(struct ieee_types_header)], 2195 &bss_info.ssid.ssid, bss_info.ssid.ssid_len); 2196 ie_len = ie_buf[1] + sizeof(struct ieee_types_header); 2197 2198 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 2199 chan = ieee80211_get_channel(priv->wdev.wiphy, 2200 ieee80211_channel_to_frequency(bss_info.bss_chan, 2201 band)); 2202 2203 bss = cfg80211_inform_bss(priv->wdev.wiphy, chan, 2204 CFG80211_BSS_FTYPE_UNKNOWN, 2205 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS, 2206 0, ie_buf, ie_len, 0, GFP_KERNEL); 2207 if (bss) { 2208 cfg80211_put_bss(priv->wdev.wiphy, bss); 2209 ether_addr_copy(priv->cfg_bssid, bss_info.bssid); 2210 } 2211 2212 return 0; 2213 } 2214 2215 /* 2216 * This function connects with a BSS. 2217 * 2218 * This function handles both Infra and Ad-Hoc modes. It also performs 2219 * validity checking on the provided parameters, disconnects from the 2220 * current BSS (if any), sets up the association/scan parameters, 2221 * including security settings, and performs specific SSID scan before 2222 * trying to connect. 2223 * 2224 * For Infra mode, the function returns failure if the specified SSID 2225 * is not found in scan table. However, for Ad-Hoc mode, it can create 2226 * the IBSS if it does not exist. On successful completion in either case, 2227 * the function notifies the CFG802.11 subsystem of the new BSS connection. 2228 */ 2229 static int 2230 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, 2231 const u8 *ssid, const u8 *bssid, int mode, 2232 struct ieee80211_channel *channel, 2233 struct cfg80211_connect_params *sme, bool privacy, 2234 struct cfg80211_bss **sel_bss) 2235 { 2236 struct cfg80211_ssid req_ssid; 2237 int ret, auth_type = 0; 2238 struct cfg80211_bss *bss = NULL; 2239 u8 is_scanning_required = 0; 2240 2241 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid)); 2242 2243 req_ssid.ssid_len = ssid_len; 2244 if (ssid_len > IEEE80211_MAX_SSID_LEN) { 2245 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n"); 2246 return -EINVAL; 2247 } 2248 2249 memcpy(req_ssid.ssid, ssid, ssid_len); 2250 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) { 2251 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n"); 2252 return -EINVAL; 2253 } 2254 2255 /* As this is new association, clear locally stored 2256 * keys and security related flags */ 2257 priv->sec_info.wpa_enabled = false; 2258 priv->sec_info.wpa2_enabled = false; 2259 priv->wep_key_curr_index = 0; 2260 priv->sec_info.encryption_mode = 0; 2261 priv->sec_info.is_authtype_auto = 0; 2262 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1); 2263 2264 if (mode == NL80211_IFTYPE_ADHOC) { 2265 u16 enable = true; 2266 2267 /* set ibss coalescing_status */ 2268 ret = mwifiex_send_cmd( 2269 priv, 2270 HostCmd_CMD_802_11_IBSS_COALESCING_STATUS, 2271 HostCmd_ACT_GEN_SET, 0, &enable, true); 2272 if (ret) 2273 return ret; 2274 2275 /* "privacy" is set only for ad-hoc mode */ 2276 if (privacy) { 2277 /* 2278 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that 2279 * the firmware can find a matching network from the 2280 * scan. The cfg80211 does not give us the encryption 2281 * mode at this stage so just setting it to WEP here. 2282 */ 2283 priv->sec_info.encryption_mode = 2284 WLAN_CIPHER_SUITE_WEP104; 2285 priv->sec_info.authentication_mode = 2286 NL80211_AUTHTYPE_OPEN_SYSTEM; 2287 } 2288 2289 goto done; 2290 } 2291 2292 /* Now handle infra mode. "sme" is valid for infra mode only */ 2293 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { 2294 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; 2295 priv->sec_info.is_authtype_auto = 1; 2296 } else { 2297 auth_type = sme->auth_type; 2298 } 2299 2300 if (sme->crypto.n_ciphers_pairwise) { 2301 priv->sec_info.encryption_mode = 2302 sme->crypto.ciphers_pairwise[0]; 2303 priv->sec_info.authentication_mode = auth_type; 2304 } 2305 2306 if (sme->crypto.cipher_group) { 2307 priv->sec_info.encryption_mode = sme->crypto.cipher_group; 2308 priv->sec_info.authentication_mode = auth_type; 2309 } 2310 if (sme->ie) 2311 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len); 2312 2313 if (sme->key) { 2314 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) { 2315 mwifiex_dbg(priv->adapter, INFO, 2316 "info: setting wep encryption\t" 2317 "with key len %d\n", sme->key_len); 2318 priv->wep_key_curr_index = sme->key_idx; 2319 ret = mwifiex_set_encode(priv, NULL, sme->key, 2320 sme->key_len, sme->key_idx, 2321 NULL, 0); 2322 } 2323 } 2324 done: 2325 /* 2326 * Scan entries are valid for some time (15 sec). So we can save one 2327 * active scan time if we just try cfg80211_get_bss first. If it fails 2328 * then request scan and cfg80211_get_bss() again for final output. 2329 */ 2330 while (1) { 2331 if (is_scanning_required) { 2332 /* Do specific SSID scanning */ 2333 if (mwifiex_request_scan(priv, &req_ssid)) { 2334 mwifiex_dbg(priv->adapter, ERROR, "scan error\n"); 2335 return -EFAULT; 2336 } 2337 } 2338 2339 /* Find the BSS we want using available scan results */ 2340 if (mode == NL80211_IFTYPE_ADHOC) 2341 bss = cfg80211_get_bss(priv->wdev.wiphy, channel, 2342 bssid, ssid, ssid_len, 2343 IEEE80211_BSS_TYPE_IBSS, 2344 IEEE80211_PRIVACY_ANY); 2345 else 2346 bss = cfg80211_get_bss(priv->wdev.wiphy, channel, 2347 bssid, ssid, ssid_len, 2348 IEEE80211_BSS_TYPE_ESS, 2349 IEEE80211_PRIVACY_ANY); 2350 2351 if (!bss) { 2352 if (is_scanning_required) { 2353 mwifiex_dbg(priv->adapter, MSG, 2354 "assoc: requested bss not found in scan results\n"); 2355 break; 2356 } 2357 is_scanning_required = 1; 2358 } else { 2359 mwifiex_dbg(priv->adapter, MSG, 2360 "info: trying to associate to bssid %pM\n", 2361 bss->bssid); 2362 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN); 2363 break; 2364 } 2365 } 2366 2367 if (bss) 2368 cfg80211_ref_bss(priv->adapter->wiphy, bss); 2369 2370 ret = mwifiex_bss_start(priv, bss, &req_ssid); 2371 if (ret) 2372 goto cleanup; 2373 2374 if (mode == NL80211_IFTYPE_ADHOC) { 2375 /* Inform the BSS information to kernel, otherwise 2376 * kernel will give a panic after successful assoc */ 2377 if (mwifiex_cfg80211_inform_ibss_bss(priv)) { 2378 ret = -EFAULT; 2379 goto cleanup; 2380 } 2381 } 2382 2383 /* Pass the selected BSS entry to caller. */ 2384 if (sel_bss) { 2385 *sel_bss = bss; 2386 bss = NULL; 2387 } 2388 2389 cleanup: 2390 if (bss) 2391 cfg80211_put_bss(priv->adapter->wiphy, bss); 2392 return ret; 2393 } 2394 2395 /* 2396 * CFG802.11 operation handler for association request. 2397 * 2398 * This function does not work when the current mode is set to Ad-Hoc, or 2399 * when there is already an association procedure going on. The given BSS 2400 * information is used to associate. 2401 */ 2402 static int 2403 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, 2404 struct cfg80211_connect_params *sme) 2405 { 2406 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2407 struct mwifiex_adapter *adapter = priv->adapter; 2408 struct cfg80211_bss *bss = NULL; 2409 int ret; 2410 2411 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) { 2412 mwifiex_dbg(adapter, ERROR, 2413 "%s: reject infra assoc request in non-STA role\n", 2414 dev->name); 2415 return -EINVAL; 2416 } 2417 2418 if (priv->wdev.connected) { 2419 mwifiex_dbg(adapter, ERROR, 2420 "%s: already connected\n", dev->name); 2421 return -EALREADY; 2422 } 2423 2424 if (priv->scan_block) 2425 priv->scan_block = false; 2426 2427 if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags) || 2428 test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags)) { 2429 mwifiex_dbg(adapter, ERROR, 2430 "%s: Ignore connection.\t" 2431 "Card removed or FW in bad state\n", 2432 dev->name); 2433 return -EFAULT; 2434 } 2435 2436 mwifiex_dbg(adapter, INFO, 2437 "info: Trying to associate to bssid %pM\n", sme->bssid); 2438 2439 if (!mwifiex_stop_bg_scan(priv)) 2440 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0); 2441 2442 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid, 2443 priv->bss_mode, sme->channel, sme, 0, 2444 &bss); 2445 if (!ret) { 2446 cfg80211_connect_bss(priv->netdev, priv->cfg_bssid, bss, NULL, 2447 0, NULL, 0, WLAN_STATUS_SUCCESS, 2448 GFP_KERNEL, NL80211_TIMEOUT_UNSPECIFIED); 2449 mwifiex_dbg(priv->adapter, MSG, 2450 "info: associated to bssid %pM successfully\n", 2451 priv->cfg_bssid); 2452 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) && 2453 priv->adapter->auto_tdls && 2454 priv->bss_type == MWIFIEX_BSS_TYPE_STA) 2455 mwifiex_setup_auto_tdls_timer(priv); 2456 } else { 2457 mwifiex_dbg(priv->adapter, ERROR, 2458 "info: association to bssid %pM failed\n", 2459 priv->cfg_bssid); 2460 eth_zero_addr(priv->cfg_bssid); 2461 2462 if (ret > 0) 2463 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, 2464 NULL, 0, NULL, 0, ret, 2465 GFP_KERNEL); 2466 else 2467 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, 2468 NULL, 0, NULL, 0, 2469 WLAN_STATUS_UNSPECIFIED_FAILURE, 2470 GFP_KERNEL); 2471 } 2472 2473 return 0; 2474 } 2475 2476 /* 2477 * This function sets following parameters for ibss network. 2478 * - channel 2479 * - start band 2480 * - 11n flag 2481 * - secondary channel offset 2482 */ 2483 static int mwifiex_set_ibss_params(struct mwifiex_private *priv, 2484 struct cfg80211_ibss_params *params) 2485 { 2486 struct mwifiex_adapter *adapter = priv->adapter; 2487 int index = 0, i; 2488 u8 config_bands = 0; 2489 2490 if (params->chandef.chan->band == NL80211_BAND_2GHZ) { 2491 if (!params->basic_rates) { 2492 config_bands = BAND_B | BAND_G; 2493 } else { 2494 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) { 2495 /* 2496 * Rates below 6 Mbps in the table are CCK 2497 * rates; 802.11b and from 6 they are OFDM; 2498 * 802.11G 2499 */ 2500 if (mwifiex_rates[i].bitrate == 60) { 2501 index = 1 << i; 2502 break; 2503 } 2504 } 2505 2506 if (params->basic_rates < index) { 2507 config_bands = BAND_B; 2508 } else { 2509 config_bands = BAND_G; 2510 if (params->basic_rates % index) 2511 config_bands |= BAND_B; 2512 } 2513 } 2514 2515 if (cfg80211_get_chandef_type(¶ms->chandef) != 2516 NL80211_CHAN_NO_HT) 2517 config_bands |= BAND_G | BAND_GN; 2518 } else { 2519 if (cfg80211_get_chandef_type(¶ms->chandef) == 2520 NL80211_CHAN_NO_HT) 2521 config_bands = BAND_A; 2522 else 2523 config_bands = BAND_AN | BAND_A; 2524 } 2525 2526 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) { 2527 adapter->config_bands = config_bands; 2528 adapter->adhoc_start_band = config_bands; 2529 2530 if ((config_bands & BAND_GN) || (config_bands & BAND_AN)) 2531 adapter->adhoc_11n_enabled = true; 2532 else 2533 adapter->adhoc_11n_enabled = false; 2534 } 2535 2536 adapter->sec_chan_offset = 2537 mwifiex_chan_type_to_sec_chan_offset( 2538 cfg80211_get_chandef_type(¶ms->chandef)); 2539 priv->adhoc_channel = ieee80211_frequency_to_channel( 2540 params->chandef.chan->center_freq); 2541 2542 mwifiex_dbg(adapter, INFO, 2543 "info: set ibss band %d, chan %d, chan offset %d\n", 2544 config_bands, priv->adhoc_channel, 2545 adapter->sec_chan_offset); 2546 2547 return 0; 2548 } 2549 2550 /* 2551 * CFG802.11 operation handler to join an IBSS. 2552 * 2553 * This function does not work in any mode other than Ad-Hoc, or if 2554 * a join operation is already in progress. 2555 */ 2556 static int 2557 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2558 struct cfg80211_ibss_params *params) 2559 { 2560 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2561 int ret = 0; 2562 2563 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) { 2564 mwifiex_dbg(priv->adapter, ERROR, 2565 "request to join ibss received\t" 2566 "when station is not in ibss mode\n"); 2567 goto done; 2568 } 2569 2570 mwifiex_dbg(priv->adapter, MSG, "info: trying to join to bssid %pM\n", 2571 params->bssid); 2572 2573 mwifiex_set_ibss_params(priv, params); 2574 2575 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid, 2576 params->bssid, priv->bss_mode, 2577 params->chandef.chan, NULL, 2578 params->privacy, NULL); 2579 done: 2580 if (!ret) { 2581 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, 2582 params->chandef.chan, GFP_KERNEL); 2583 mwifiex_dbg(priv->adapter, MSG, 2584 "info: joined/created adhoc network with bssid\t" 2585 "%pM successfully\n", priv->cfg_bssid); 2586 } else { 2587 mwifiex_dbg(priv->adapter, ERROR, 2588 "info: failed creating/joining adhoc network\n"); 2589 } 2590 2591 return ret; 2592 } 2593 2594 /* 2595 * CFG802.11 operation handler to leave an IBSS. 2596 * 2597 * This function does not work if a leave operation is 2598 * already in progress. 2599 */ 2600 static int 2601 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2602 { 2603 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2604 2605 mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n", 2606 priv->cfg_bssid); 2607 if (mwifiex_deauthenticate(priv, NULL)) 2608 return -EFAULT; 2609 2610 eth_zero_addr(priv->cfg_bssid); 2611 2612 return 0; 2613 } 2614 2615 /* 2616 * CFG802.11 operation handler for scan request. 2617 * 2618 * This function issues a scan request to the firmware based upon 2619 * the user specified scan configuration. On successful completion, 2620 * it also informs the results. 2621 */ 2622 static int 2623 mwifiex_cfg80211_scan(struct wiphy *wiphy, 2624 struct cfg80211_scan_request *request) 2625 { 2626 struct net_device *dev = request->wdev->netdev; 2627 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2628 int i, offset, ret; 2629 struct ieee80211_channel *chan; 2630 struct ieee_types_header *ie; 2631 struct mwifiex_user_scan_cfg *user_scan_cfg; 2632 u8 mac_addr[ETH_ALEN]; 2633 2634 mwifiex_dbg(priv->adapter, CMD, 2635 "info: received scan request on %s\n", dev->name); 2636 2637 /* Block scan request if scan operation or scan cleanup when interface 2638 * is disabled is in process 2639 */ 2640 if (priv->scan_request || priv->scan_aborting) { 2641 mwifiex_dbg(priv->adapter, WARN, 2642 "cmd: Scan already in process..\n"); 2643 return -EBUSY; 2644 } 2645 2646 if (!priv->wdev.connected && priv->scan_block) 2647 priv->scan_block = false; 2648 2649 if (!mwifiex_stop_bg_scan(priv)) 2650 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0); 2651 2652 user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL); 2653 if (!user_scan_cfg) 2654 return -ENOMEM; 2655 2656 priv->scan_request = request; 2657 2658 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) { 2659 get_random_mask_addr(mac_addr, request->mac_addr, 2660 request->mac_addr_mask); 2661 ether_addr_copy(request->mac_addr, mac_addr); 2662 ether_addr_copy(user_scan_cfg->random_mac, mac_addr); 2663 } 2664 2665 user_scan_cfg->num_ssids = request->n_ssids; 2666 user_scan_cfg->ssid_list = request->ssids; 2667 2668 if (request->ie && request->ie_len) { 2669 offset = 0; 2670 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2671 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR) 2672 continue; 2673 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN; 2674 ie = (struct ieee_types_header *)(request->ie + offset); 2675 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len); 2676 offset += sizeof(*ie) + ie->len; 2677 2678 if (offset >= request->ie_len) 2679 break; 2680 } 2681 } 2682 2683 for (i = 0; i < min_t(u32, request->n_channels, 2684 MWIFIEX_USER_SCAN_CHAN_MAX); i++) { 2685 chan = request->channels[i]; 2686 user_scan_cfg->chan_list[i].chan_number = chan->hw_value; 2687 user_scan_cfg->chan_list[i].radio_type = chan->band; 2688 2689 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids) 2690 user_scan_cfg->chan_list[i].scan_type = 2691 MWIFIEX_SCAN_TYPE_PASSIVE; 2692 else 2693 user_scan_cfg->chan_list[i].scan_type = 2694 MWIFIEX_SCAN_TYPE_ACTIVE; 2695 2696 user_scan_cfg->chan_list[i].scan_time = 0; 2697 } 2698 2699 if (priv->adapter->scan_chan_gap_enabled && 2700 mwifiex_is_any_intf_active(priv)) 2701 user_scan_cfg->scan_chan_gap = 2702 priv->adapter->scan_chan_gap_time; 2703 2704 ret = mwifiex_scan_networks(priv, user_scan_cfg); 2705 kfree(user_scan_cfg); 2706 if (ret) { 2707 mwifiex_dbg(priv->adapter, ERROR, 2708 "scan failed: %d\n", ret); 2709 priv->scan_aborting = false; 2710 priv->scan_request = NULL; 2711 return ret; 2712 } 2713 2714 if (request->ie && request->ie_len) { 2715 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2716 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) { 2717 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR; 2718 memset(&priv->vs_ie[i].ie, 0, 2719 MWIFIEX_MAX_VSIE_LEN); 2720 } 2721 } 2722 } 2723 return 0; 2724 } 2725 2726 /* CFG802.11 operation handler for sched_scan_start. 2727 * 2728 * This function issues a bgscan config request to the firmware based upon 2729 * the user specified sched_scan configuration. On successful completion, 2730 * firmware will generate BGSCAN_REPORT event, driver should issue bgscan 2731 * query command to get sched_scan results from firmware. 2732 */ 2733 static int 2734 mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy, 2735 struct net_device *dev, 2736 struct cfg80211_sched_scan_request *request) 2737 { 2738 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2739 int i, offset; 2740 struct ieee80211_channel *chan; 2741 struct mwifiex_bg_scan_cfg *bgscan_cfg; 2742 struct ieee_types_header *ie; 2743 2744 if (!request || (!request->n_ssids && !request->n_match_sets)) { 2745 wiphy_err(wiphy, "%s : Invalid Sched_scan parameters", 2746 __func__); 2747 return -EINVAL; 2748 } 2749 2750 wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ", 2751 request->n_ssids, request->n_match_sets); 2752 wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n", 2753 request->n_channels, request->scan_plans->interval, 2754 (int)request->ie_len); 2755 2756 bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL); 2757 if (!bgscan_cfg) 2758 return -ENOMEM; 2759 2760 if (priv->scan_request || priv->scan_aborting) 2761 bgscan_cfg->start_later = true; 2762 2763 bgscan_cfg->num_ssids = request->n_match_sets; 2764 bgscan_cfg->ssid_list = request->match_sets; 2765 2766 if (request->ie && request->ie_len) { 2767 offset = 0; 2768 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2769 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR) 2770 continue; 2771 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN; 2772 ie = (struct ieee_types_header *)(request->ie + offset); 2773 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len); 2774 offset += sizeof(*ie) + ie->len; 2775 2776 if (offset >= request->ie_len) 2777 break; 2778 } 2779 } 2780 2781 for (i = 0; i < min_t(u32, request->n_channels, 2782 MWIFIEX_BG_SCAN_CHAN_MAX); i++) { 2783 chan = request->channels[i]; 2784 bgscan_cfg->chan_list[i].chan_number = chan->hw_value; 2785 bgscan_cfg->chan_list[i].radio_type = chan->band; 2786 2787 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids) 2788 bgscan_cfg->chan_list[i].scan_type = 2789 MWIFIEX_SCAN_TYPE_PASSIVE; 2790 else 2791 bgscan_cfg->chan_list[i].scan_type = 2792 MWIFIEX_SCAN_TYPE_ACTIVE; 2793 2794 bgscan_cfg->chan_list[i].scan_time = 0; 2795 } 2796 2797 bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels, 2798 MWIFIEX_BG_SCAN_CHAN_MAX); 2799 2800 /* Use at least 15 second for per scan cycle */ 2801 bgscan_cfg->scan_interval = (request->scan_plans->interval > 2802 MWIFIEX_BGSCAN_INTERVAL) ? 2803 request->scan_plans->interval : 2804 MWIFIEX_BGSCAN_INTERVAL; 2805 2806 bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT; 2807 bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH | 2808 MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE; 2809 bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA; 2810 bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET; 2811 bgscan_cfg->enable = true; 2812 if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) { 2813 bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH; 2814 bgscan_cfg->rssi_threshold = request->min_rssi_thold; 2815 } 2816 2817 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG, 2818 HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) { 2819 kfree(bgscan_cfg); 2820 return -EFAULT; 2821 } 2822 2823 priv->sched_scanning = true; 2824 2825 kfree(bgscan_cfg); 2826 return 0; 2827 } 2828 2829 /* CFG802.11 operation handler for sched_scan_stop. 2830 * 2831 * This function issues a bgscan config command to disable 2832 * previous bgscan configuration in the firmware 2833 */ 2834 static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy, 2835 struct net_device *dev, u64 reqid) 2836 { 2837 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2838 2839 wiphy_info(wiphy, "sched scan stop!"); 2840 mwifiex_stop_bg_scan(priv); 2841 2842 return 0; 2843 } 2844 2845 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info, 2846 struct mwifiex_private *priv) 2847 { 2848 struct mwifiex_adapter *adapter = priv->adapter; 2849 2850 vht_info->vht_supported = true; 2851 2852 vht_info->cap = adapter->hw_dot_11ac_dev_cap; 2853 /* Update MCS support for VHT */ 2854 vht_info->vht_mcs.rx_mcs_map = cpu_to_le16( 2855 adapter->hw_dot_11ac_mcs_support & 0xFFFF); 2856 vht_info->vht_mcs.rx_highest = 0; 2857 vht_info->vht_mcs.tx_mcs_map = cpu_to_le16( 2858 adapter->hw_dot_11ac_mcs_support >> 16); 2859 vht_info->vht_mcs.tx_highest = 0; 2860 } 2861 2862 /* 2863 * This function sets up the CFG802.11 specific HT capability fields 2864 * with default values. 2865 * 2866 * The following default values are set - 2867 * - HT Supported = True 2868 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K 2869 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE 2870 * - HT Capabilities supported by firmware 2871 * - MCS information, Rx mask = 0xff 2872 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01) 2873 */ 2874 static void 2875 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info, 2876 struct mwifiex_private *priv) 2877 { 2878 int rx_mcs_supp; 2879 struct ieee80211_mcs_info mcs_set; 2880 u8 *mcs = (u8 *)&mcs_set; 2881 struct mwifiex_adapter *adapter = priv->adapter; 2882 2883 ht_info->ht_supported = true; 2884 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; 2885 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; 2886 2887 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); 2888 2889 /* Fill HT capability information */ 2890 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) 2891 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 2892 else 2893 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 2894 2895 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap)) 2896 ht_info->cap |= IEEE80211_HT_CAP_SGI_20; 2897 else 2898 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20; 2899 2900 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap)) 2901 ht_info->cap |= IEEE80211_HT_CAP_SGI_40; 2902 else 2903 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40; 2904 2905 if (adapter->user_dev_mcs_support == HT_STREAM_2X2) 2906 ht_info->cap |= 2 << IEEE80211_HT_CAP_RX_STBC_SHIFT; 2907 else 2908 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT; 2909 2910 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap)) 2911 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC; 2912 else 2913 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC; 2914 2915 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap)) 2916 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD; 2917 else 2918 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD; 2919 2920 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap)) 2921 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT; 2922 else 2923 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT; 2924 2925 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap)) 2926 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING; 2927 else 2928 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING; 2929 2930 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU; 2931 ht_info->cap |= IEEE80211_HT_CAP_SM_PS; 2932 2933 rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support); 2934 /* Set MCS for 1x1/2x2 */ 2935 memset(mcs, 0xff, rx_mcs_supp); 2936 /* Clear all the other values */ 2937 memset(&mcs[rx_mcs_supp], 0, 2938 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp); 2939 if (priv->bss_mode == NL80211_IFTYPE_STATION || 2940 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) 2941 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */ 2942 SETHT_MCS32(mcs_set.rx_mask); 2943 2944 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info)); 2945 2946 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; 2947 } 2948 2949 /* 2950 * create a new virtual interface with the given name and name assign type 2951 */ 2952 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy, 2953 const char *name, 2954 unsigned char name_assign_type, 2955 enum nl80211_iftype type, 2956 struct vif_params *params) 2957 { 2958 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 2959 struct mwifiex_private *priv; 2960 struct net_device *dev; 2961 void *mdev_priv; 2962 int ret; 2963 2964 if (!adapter) 2965 return ERR_PTR(-EFAULT); 2966 2967 switch (type) { 2968 case NL80211_IFTYPE_UNSPECIFIED: 2969 case NL80211_IFTYPE_STATION: 2970 case NL80211_IFTYPE_ADHOC: 2971 if (adapter->curr_iface_comb.sta_intf == 2972 adapter->iface_limit.sta_intf) { 2973 mwifiex_dbg(adapter, ERROR, 2974 "cannot create multiple sta/adhoc ifaces\n"); 2975 return ERR_PTR(-EINVAL); 2976 } 2977 2978 priv = mwifiex_get_unused_priv_by_bss_type( 2979 adapter, MWIFIEX_BSS_TYPE_STA); 2980 if (!priv) { 2981 mwifiex_dbg(adapter, ERROR, 2982 "could not get free private struct\n"); 2983 return ERR_PTR(-EFAULT); 2984 } 2985 2986 priv->wdev.wiphy = wiphy; 2987 priv->wdev.iftype = NL80211_IFTYPE_STATION; 2988 2989 if (type == NL80211_IFTYPE_UNSPECIFIED) 2990 priv->bss_mode = NL80211_IFTYPE_STATION; 2991 else 2992 priv->bss_mode = type; 2993 2994 priv->bss_type = MWIFIEX_BSS_TYPE_STA; 2995 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 2996 priv->bss_priority = 0; 2997 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 2998 2999 break; 3000 case NL80211_IFTYPE_AP: 3001 if (adapter->curr_iface_comb.uap_intf == 3002 adapter->iface_limit.uap_intf) { 3003 mwifiex_dbg(adapter, ERROR, 3004 "cannot create multiple AP ifaces\n"); 3005 return ERR_PTR(-EINVAL); 3006 } 3007 3008 priv = mwifiex_get_unused_priv_by_bss_type( 3009 adapter, MWIFIEX_BSS_TYPE_UAP); 3010 if (!priv) { 3011 mwifiex_dbg(adapter, ERROR, 3012 "could not get free private struct\n"); 3013 return ERR_PTR(-EFAULT); 3014 } 3015 3016 priv->wdev.wiphy = wiphy; 3017 priv->wdev.iftype = NL80211_IFTYPE_AP; 3018 3019 priv->bss_type = MWIFIEX_BSS_TYPE_UAP; 3020 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 3021 priv->bss_priority = 0; 3022 priv->bss_role = MWIFIEX_BSS_ROLE_UAP; 3023 priv->bss_started = 0; 3024 priv->bss_mode = type; 3025 3026 break; 3027 case NL80211_IFTYPE_P2P_CLIENT: 3028 if (adapter->curr_iface_comb.p2p_intf == 3029 adapter->iface_limit.p2p_intf) { 3030 mwifiex_dbg(adapter, ERROR, 3031 "cannot create multiple P2P ifaces\n"); 3032 return ERR_PTR(-EINVAL); 3033 } 3034 3035 priv = mwifiex_get_unused_priv_by_bss_type( 3036 adapter, MWIFIEX_BSS_TYPE_P2P); 3037 if (!priv) { 3038 mwifiex_dbg(adapter, ERROR, 3039 "could not get free private struct\n"); 3040 return ERR_PTR(-EFAULT); 3041 } 3042 3043 priv->wdev.wiphy = wiphy; 3044 /* At start-up, wpa_supplicant tries to change the interface 3045 * to NL80211_IFTYPE_STATION if it is not managed mode. 3046 */ 3047 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT; 3048 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT; 3049 3050 /* Setting bss_type to P2P tells firmware that this interface 3051 * is receiving P2P peers found during find phase and doing 3052 * action frame handshake. 3053 */ 3054 priv->bss_type = MWIFIEX_BSS_TYPE_P2P; 3055 3056 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 3057 priv->bss_priority = 0; 3058 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 3059 priv->bss_started = 0; 3060 3061 if (mwifiex_cfg80211_init_p2p_client(priv)) { 3062 memset(&priv->wdev, 0, sizeof(priv->wdev)); 3063 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 3064 return ERR_PTR(-EFAULT); 3065 } 3066 3067 break; 3068 default: 3069 mwifiex_dbg(adapter, ERROR, "type not supported\n"); 3070 return ERR_PTR(-EINVAL); 3071 } 3072 3073 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name, 3074 name_assign_type, ether_setup, 3075 IEEE80211_NUM_ACS, 1); 3076 if (!dev) { 3077 mwifiex_dbg(adapter, ERROR, 3078 "no memory available for netdevice\n"); 3079 ret = -ENOMEM; 3080 goto err_alloc_netdev; 3081 } 3082 3083 mwifiex_init_priv_params(priv, dev); 3084 3085 priv->netdev = dev; 3086 3087 if (!adapter->mfg_mode) { 3088 mwifiex_set_mac_address(priv, dev, false, NULL); 3089 3090 ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 3091 HostCmd_ACT_GEN_SET, 0, NULL, true); 3092 if (ret) 3093 goto err_set_bss_mode; 3094 3095 ret = mwifiex_sta_init_cmd(priv, false, false); 3096 if (ret) 3097 goto err_sta_init; 3098 } 3099 3100 mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv); 3101 if (adapter->is_hw_11ac_capable) 3102 mwifiex_setup_vht_caps( 3103 &wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv); 3104 3105 if (adapter->config_bands & BAND_A) 3106 mwifiex_setup_ht_caps( 3107 &wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv); 3108 3109 if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable) 3110 mwifiex_setup_vht_caps( 3111 &wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv); 3112 3113 dev_net_set(dev, wiphy_net(wiphy)); 3114 dev->ieee80211_ptr = &priv->wdev; 3115 dev->ieee80211_ptr->iftype = priv->bss_mode; 3116 SET_NETDEV_DEV(dev, wiphy_dev(wiphy)); 3117 3118 dev->flags |= IFF_BROADCAST | IFF_MULTICAST; 3119 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT; 3120 dev->needed_headroom = MWIFIEX_MIN_DATA_HEADER_LEN; 3121 dev->ethtool_ops = &mwifiex_ethtool_ops; 3122 3123 mdev_priv = netdev_priv(dev); 3124 *((unsigned long *) mdev_priv) = (unsigned long) priv; 3125 3126 SET_NETDEV_DEV(dev, adapter->dev); 3127 3128 priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s", 3129 WQ_HIGHPRI | 3130 WQ_MEM_RECLAIM | 3131 WQ_UNBOUND, 0, name); 3132 if (!priv->dfs_cac_workqueue) { 3133 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS CAC queue\n"); 3134 ret = -ENOMEM; 3135 goto err_alloc_cac; 3136 } 3137 3138 INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue); 3139 3140 priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s", 3141 WQ_HIGHPRI | WQ_UNBOUND | 3142 WQ_MEM_RECLAIM, 0, name); 3143 if (!priv->dfs_chan_sw_workqueue) { 3144 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS channel sw queue\n"); 3145 ret = -ENOMEM; 3146 goto err_alloc_chsw; 3147 } 3148 3149 INIT_DELAYED_WORK(&priv->dfs_chan_sw_work, 3150 mwifiex_dfs_chan_sw_work_queue); 3151 3152 mutex_init(&priv->async_mutex); 3153 3154 /* Register network device */ 3155 if (cfg80211_register_netdevice(dev)) { 3156 mwifiex_dbg(adapter, ERROR, "cannot register network device\n"); 3157 ret = -EFAULT; 3158 goto err_reg_netdev; 3159 } 3160 3161 mwifiex_dbg(adapter, INFO, 3162 "info: %s: Marvell 802.11 Adapter\n", dev->name); 3163 3164 #ifdef CONFIG_DEBUG_FS 3165 mwifiex_dev_debugfs_init(priv); 3166 #endif 3167 3168 update_vif_type_counter(adapter, type, +1); 3169 3170 return &priv->wdev; 3171 3172 err_reg_netdev: 3173 destroy_workqueue(priv->dfs_chan_sw_workqueue); 3174 priv->dfs_chan_sw_workqueue = NULL; 3175 err_alloc_chsw: 3176 destroy_workqueue(priv->dfs_cac_workqueue); 3177 priv->dfs_cac_workqueue = NULL; 3178 err_alloc_cac: 3179 free_netdev(dev); 3180 priv->netdev = NULL; 3181 err_sta_init: 3182 err_set_bss_mode: 3183 err_alloc_netdev: 3184 memset(&priv->wdev, 0, sizeof(priv->wdev)); 3185 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 3186 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; 3187 return ERR_PTR(ret); 3188 } 3189 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf); 3190 3191 /* 3192 * del_virtual_intf: remove the virtual interface determined by dev 3193 */ 3194 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) 3195 { 3196 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 3197 struct mwifiex_adapter *adapter = priv->adapter; 3198 struct sk_buff *skb, *tmp; 3199 3200 #ifdef CONFIG_DEBUG_FS 3201 mwifiex_dev_debugfs_remove(priv); 3202 #endif 3203 3204 if (priv->sched_scanning) 3205 priv->sched_scanning = false; 3206 3207 mwifiex_stop_net_dev_queue(priv->netdev, adapter); 3208 3209 skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) { 3210 skb_unlink(skb, &priv->bypass_txq); 3211 mwifiex_write_data_complete(priv->adapter, skb, 0, -1); 3212 } 3213 3214 if (netif_carrier_ok(priv->netdev)) 3215 netif_carrier_off(priv->netdev); 3216 3217 if (wdev->netdev->reg_state == NETREG_REGISTERED) 3218 cfg80211_unregister_netdevice(wdev->netdev); 3219 3220 if (priv->dfs_cac_workqueue) { 3221 destroy_workqueue(priv->dfs_cac_workqueue); 3222 priv->dfs_cac_workqueue = NULL; 3223 } 3224 3225 if (priv->dfs_chan_sw_workqueue) { 3226 destroy_workqueue(priv->dfs_chan_sw_workqueue); 3227 priv->dfs_chan_sw_workqueue = NULL; 3228 } 3229 /* Clear the priv in adapter */ 3230 priv->netdev = NULL; 3231 3232 update_vif_type_counter(adapter, priv->bss_mode, -1); 3233 3234 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; 3235 3236 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA || 3237 GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) 3238 kfree(priv->hist_data); 3239 3240 return 0; 3241 } 3242 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf); 3243 3244 static bool 3245 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq, 3246 u8 max_byte_seq) 3247 { 3248 int j, k, valid_byte_cnt = 0; 3249 bool dont_care_byte = false; 3250 3251 for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) { 3252 for (k = 0; k < 8; k++) { 3253 if (pat->mask[j] & 1 << k) { 3254 memcpy(byte_seq + valid_byte_cnt, 3255 &pat->pattern[j * 8 + k], 1); 3256 valid_byte_cnt++; 3257 if (dont_care_byte) 3258 return false; 3259 } else { 3260 if (valid_byte_cnt) 3261 dont_care_byte = true; 3262 } 3263 3264 /* wildcard bytes record as the offset 3265 * before the valid byte 3266 */ 3267 if (!valid_byte_cnt && !dont_care_byte) 3268 pat->pkt_offset++; 3269 3270 if (valid_byte_cnt > max_byte_seq) 3271 return false; 3272 } 3273 } 3274 3275 byte_seq[max_byte_seq] = valid_byte_cnt; 3276 3277 return true; 3278 } 3279 3280 #ifdef CONFIG_PM 3281 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv, 3282 struct mwifiex_mef_entry *mef_entry) 3283 { 3284 int i, filt_num = 0, num_ipv4 = 0; 3285 struct in_device *in_dev; 3286 struct in_ifaddr *ifa; 3287 __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR]; 3288 struct mwifiex_adapter *adapter = priv->adapter; 3289 3290 mef_entry->mode = MEF_MODE_HOST_SLEEP; 3291 mef_entry->action = MEF_ACTION_AUTO_ARP; 3292 3293 /* Enable ARP offload feature */ 3294 memset(ips, 0, sizeof(ips)); 3295 for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) { 3296 if (adapter->priv[i]->netdev) { 3297 in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev); 3298 if (!in_dev) 3299 continue; 3300 ifa = rtnl_dereference(in_dev->ifa_list); 3301 if (!ifa || !ifa->ifa_local) 3302 continue; 3303 ips[i] = ifa->ifa_local; 3304 num_ipv4++; 3305 } 3306 } 3307 3308 for (i = 0; i < num_ipv4; i++) { 3309 if (!ips[i]) 3310 continue; 3311 mef_entry->filter[filt_num].repeat = 1; 3312 memcpy(mef_entry->filter[filt_num].byte_seq, 3313 (u8 *)&ips[i], sizeof(ips[i])); 3314 mef_entry->filter[filt_num]. 3315 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3316 sizeof(ips[i]); 3317 mef_entry->filter[filt_num].offset = 46; 3318 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3319 if (filt_num) { 3320 mef_entry->filter[filt_num].filt_action = 3321 TYPE_OR; 3322 } 3323 filt_num++; 3324 } 3325 3326 mef_entry->filter[filt_num].repeat = 1; 3327 mef_entry->filter[filt_num].byte_seq[0] = 0x08; 3328 mef_entry->filter[filt_num].byte_seq[1] = 0x06; 3329 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2; 3330 mef_entry->filter[filt_num].offset = 20; 3331 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3332 mef_entry->filter[filt_num].filt_action = TYPE_AND; 3333 } 3334 3335 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv, 3336 struct mwifiex_ds_mef_cfg *mef_cfg, 3337 struct mwifiex_mef_entry *mef_entry, 3338 struct cfg80211_wowlan *wowlan) 3339 { 3340 int i, filt_num = 0, ret = 0; 3341 bool first_pat = true; 3342 u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1]; 3343 static const u8 ipv4_mc_mac[] = {0x33, 0x33}; 3344 static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e}; 3345 3346 mef_entry->mode = MEF_MODE_HOST_SLEEP; 3347 mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST; 3348 3349 for (i = 0; i < wowlan->n_patterns; i++) { 3350 memset(byte_seq, 0, sizeof(byte_seq)); 3351 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i], 3352 byte_seq, 3353 MWIFIEX_MEF_MAX_BYTESEQ)) { 3354 mwifiex_dbg(priv->adapter, ERROR, 3355 "Pattern not supported\n"); 3356 return -EOPNOTSUPP; 3357 } 3358 3359 if (!wowlan->patterns[i].pkt_offset) { 3360 if (!(byte_seq[0] & 0x01) && 3361 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) { 3362 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST; 3363 continue; 3364 } else if (is_broadcast_ether_addr(byte_seq)) { 3365 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST; 3366 continue; 3367 } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) && 3368 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) || 3369 (!memcmp(byte_seq, ipv6_mc_mac, 3) && 3370 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) { 3371 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST; 3372 continue; 3373 } 3374 } 3375 mef_entry->filter[filt_num].repeat = 1; 3376 mef_entry->filter[filt_num].offset = 3377 wowlan->patterns[i].pkt_offset; 3378 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq, 3379 sizeof(byte_seq)); 3380 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3381 3382 if (first_pat) { 3383 first_pat = false; 3384 mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n"); 3385 } else { 3386 mef_entry->filter[filt_num].filt_action = TYPE_AND; 3387 } 3388 3389 filt_num++; 3390 } 3391 3392 if (wowlan->magic_pkt) { 3393 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST; 3394 mef_entry->filter[filt_num].repeat = 16; 3395 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr, 3396 ETH_ALEN); 3397 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3398 ETH_ALEN; 3399 mef_entry->filter[filt_num].offset = 28; 3400 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3401 if (filt_num) 3402 mef_entry->filter[filt_num].filt_action = TYPE_OR; 3403 3404 filt_num++; 3405 mef_entry->filter[filt_num].repeat = 16; 3406 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr, 3407 ETH_ALEN); 3408 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3409 ETH_ALEN; 3410 mef_entry->filter[filt_num].offset = 56; 3411 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3412 mef_entry->filter[filt_num].filt_action = TYPE_OR; 3413 mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n"); 3414 } 3415 return ret; 3416 } 3417 3418 static int mwifiex_set_mef_filter(struct mwifiex_private *priv, 3419 struct cfg80211_wowlan *wowlan) 3420 { 3421 int ret = 0, num_entries = 1; 3422 struct mwifiex_ds_mef_cfg mef_cfg; 3423 struct mwifiex_mef_entry *mef_entry; 3424 3425 if (wowlan->n_patterns || wowlan->magic_pkt) 3426 num_entries++; 3427 3428 mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL); 3429 if (!mef_entry) 3430 return -ENOMEM; 3431 3432 memset(&mef_cfg, 0, sizeof(mef_cfg)); 3433 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST | 3434 MWIFIEX_CRITERIA_UNICAST; 3435 mef_cfg.num_entries = num_entries; 3436 mef_cfg.mef_entry = mef_entry; 3437 3438 mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]); 3439 3440 if (wowlan->n_patterns || wowlan->magic_pkt) { 3441 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg, 3442 &mef_entry[1], wowlan); 3443 if (ret) 3444 goto err; 3445 } 3446 3447 if (!mef_cfg.criteria) 3448 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST | 3449 MWIFIEX_CRITERIA_UNICAST | 3450 MWIFIEX_CRITERIA_MULTICAST; 3451 3452 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG, 3453 HostCmd_ACT_GEN_SET, 0, 3454 &mef_cfg, true); 3455 3456 err: 3457 kfree(mef_entry); 3458 return ret; 3459 } 3460 3461 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy, 3462 struct cfg80211_wowlan *wowlan) 3463 { 3464 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3465 struct mwifiex_ds_hs_cfg hs_cfg; 3466 int i, ret = 0, retry_num = 10; 3467 struct mwifiex_private *priv; 3468 struct mwifiex_private *sta_priv = 3469 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3470 3471 sta_priv->scan_aborting = true; 3472 for (i = 0; i < adapter->priv_num; i++) { 3473 priv = adapter->priv[i]; 3474 mwifiex_abort_cac(priv); 3475 } 3476 3477 mwifiex_cancel_all_pending_cmd(adapter); 3478 3479 for (i = 0; i < adapter->priv_num; i++) { 3480 priv = adapter->priv[i]; 3481 if (priv && priv->netdev) 3482 netif_device_detach(priv->netdev); 3483 } 3484 3485 for (i = 0; i < retry_num; i++) { 3486 if (!mwifiex_wmm_lists_empty(adapter) || 3487 !mwifiex_bypass_txlist_empty(adapter) || 3488 !skb_queue_empty(&adapter->tx_data_q)) 3489 usleep_range(10000, 15000); 3490 else 3491 break; 3492 } 3493 3494 if (!wowlan) { 3495 mwifiex_dbg(adapter, INFO, 3496 "None of the WOWLAN triggers enabled\n"); 3497 ret = 0; 3498 goto done; 3499 } 3500 3501 if (!sta_priv->media_connected && !wowlan->nd_config) { 3502 mwifiex_dbg(adapter, ERROR, 3503 "Can not configure WOWLAN in disconnected state\n"); 3504 ret = 0; 3505 goto done; 3506 } 3507 3508 ret = mwifiex_set_mef_filter(sta_priv, wowlan); 3509 if (ret) { 3510 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n"); 3511 goto done; 3512 } 3513 3514 memset(&hs_cfg, 0, sizeof(hs_cfg)); 3515 hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions); 3516 3517 if (wowlan->nd_config) { 3518 mwifiex_dbg(adapter, INFO, "Wake on net detect\n"); 3519 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT; 3520 mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev, 3521 wowlan->nd_config); 3522 } 3523 3524 if (wowlan->disconnect) { 3525 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT; 3526 mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n"); 3527 } 3528 3529 hs_cfg.is_invoke_hostcmd = false; 3530 hs_cfg.gpio = adapter->hs_cfg.gpio; 3531 hs_cfg.gap = adapter->hs_cfg.gap; 3532 ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET, 3533 MWIFIEX_SYNC_CMD, &hs_cfg); 3534 if (ret) 3535 mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n"); 3536 3537 done: 3538 sta_priv->scan_aborting = false; 3539 return ret; 3540 } 3541 3542 static int mwifiex_cfg80211_resume(struct wiphy *wiphy) 3543 { 3544 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3545 struct mwifiex_private *priv; 3546 struct mwifiex_ds_wakeup_reason wakeup_reason; 3547 struct cfg80211_wowlan_wakeup wakeup_report; 3548 int i; 3549 bool report_wakeup_reason = true; 3550 3551 for (i = 0; i < adapter->priv_num; i++) { 3552 priv = adapter->priv[i]; 3553 if (priv && priv->netdev) 3554 netif_device_attach(priv->netdev); 3555 } 3556 3557 if (!wiphy->wowlan_config) 3558 goto done; 3559 3560 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3561 mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD, 3562 &wakeup_reason); 3563 memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup)); 3564 3565 wakeup_report.pattern_idx = -1; 3566 3567 switch (wakeup_reason.hs_wakeup_reason) { 3568 case NO_HSWAKEUP_REASON: 3569 break; 3570 case BCAST_DATA_MATCHED: 3571 break; 3572 case MCAST_DATA_MATCHED: 3573 break; 3574 case UCAST_DATA_MATCHED: 3575 break; 3576 case MASKTABLE_EVENT_MATCHED: 3577 break; 3578 case NON_MASKABLE_EVENT_MATCHED: 3579 if (wiphy->wowlan_config->disconnect) 3580 wakeup_report.disconnect = true; 3581 if (wiphy->wowlan_config->nd_config) 3582 wakeup_report.net_detect = adapter->nd_info; 3583 break; 3584 case NON_MASKABLE_CONDITION_MATCHED: 3585 break; 3586 case MAGIC_PATTERN_MATCHED: 3587 if (wiphy->wowlan_config->magic_pkt) 3588 wakeup_report.magic_pkt = true; 3589 if (wiphy->wowlan_config->n_patterns) 3590 wakeup_report.pattern_idx = 1; 3591 break; 3592 case GTK_REKEY_FAILURE: 3593 if (wiphy->wowlan_config->gtk_rekey_failure) 3594 wakeup_report.gtk_rekey_failure = true; 3595 break; 3596 default: 3597 report_wakeup_reason = false; 3598 break; 3599 } 3600 3601 if (report_wakeup_reason) 3602 cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report, 3603 GFP_KERNEL); 3604 3605 done: 3606 if (adapter->nd_info) { 3607 for (i = 0 ; i < adapter->nd_info->n_matches ; i++) 3608 kfree(adapter->nd_info->matches[i]); 3609 kfree(adapter->nd_info); 3610 adapter->nd_info = NULL; 3611 } 3612 3613 return 0; 3614 } 3615 3616 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy, 3617 bool enabled) 3618 { 3619 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3620 3621 device_set_wakeup_enable(adapter->dev, enabled); 3622 } 3623 3624 static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev, 3625 struct cfg80211_gtk_rekey_data *data) 3626 { 3627 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3628 3629 if (!ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info)) 3630 return -EOPNOTSUPP; 3631 3632 return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG, 3633 HostCmd_ACT_GEN_SET, 0, data, true); 3634 } 3635 3636 #endif 3637 3638 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq) 3639 { 3640 static const u8 ipv4_mc_mac[] = {0x33, 0x33}; 3641 static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e}; 3642 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff}; 3643 3644 if ((byte_seq[0] & 0x01) && 3645 (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1)) 3646 return PACKET_TYPE_UNICAST; 3647 else if (!memcmp(byte_seq, bc_mac, 4)) 3648 return PACKET_TYPE_BROADCAST; 3649 else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) && 3650 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) || 3651 (!memcmp(byte_seq, ipv6_mc_mac, 3) && 3652 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3)) 3653 return PACKET_TYPE_MULTICAST; 3654 3655 return 0; 3656 } 3657 3658 static int 3659 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv, 3660 struct cfg80211_coalesce_rules *crule, 3661 struct mwifiex_coalesce_rule *mrule) 3662 { 3663 u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1]; 3664 struct filt_field_param *param; 3665 int i; 3666 3667 mrule->max_coalescing_delay = crule->delay; 3668 3669 param = mrule->params; 3670 3671 for (i = 0; i < crule->n_patterns; i++) { 3672 memset(byte_seq, 0, sizeof(byte_seq)); 3673 if (!mwifiex_is_pattern_supported(&crule->patterns[i], 3674 byte_seq, 3675 MWIFIEX_COALESCE_MAX_BYTESEQ)) { 3676 mwifiex_dbg(priv->adapter, ERROR, 3677 "Pattern not supported\n"); 3678 return -EOPNOTSUPP; 3679 } 3680 3681 if (!crule->patterns[i].pkt_offset) { 3682 u8 pkt_type; 3683 3684 pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq); 3685 if (pkt_type && mrule->pkt_type) { 3686 mwifiex_dbg(priv->adapter, ERROR, 3687 "Multiple packet types not allowed\n"); 3688 return -EOPNOTSUPP; 3689 } else if (pkt_type) { 3690 mrule->pkt_type = pkt_type; 3691 continue; 3692 } 3693 } 3694 3695 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH) 3696 param->operation = RECV_FILTER_MATCH_TYPE_EQ; 3697 else 3698 param->operation = RECV_FILTER_MATCH_TYPE_NE; 3699 3700 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ]; 3701 memcpy(param->operand_byte_stream, byte_seq, 3702 param->operand_len); 3703 param->offset = crule->patterns[i].pkt_offset; 3704 param++; 3705 3706 mrule->num_of_fields++; 3707 } 3708 3709 if (!mrule->pkt_type) { 3710 mwifiex_dbg(priv->adapter, ERROR, 3711 "Packet type can not be determined\n"); 3712 return -EOPNOTSUPP; 3713 } 3714 3715 return 0; 3716 } 3717 3718 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy, 3719 struct cfg80211_coalesce *coalesce) 3720 { 3721 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3722 int i, ret; 3723 struct mwifiex_ds_coalesce_cfg coalesce_cfg; 3724 struct mwifiex_private *priv = 3725 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3726 3727 memset(&coalesce_cfg, 0, sizeof(coalesce_cfg)); 3728 if (!coalesce) { 3729 mwifiex_dbg(adapter, WARN, 3730 "Disable coalesce and reset all previous rules\n"); 3731 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG, 3732 HostCmd_ACT_GEN_SET, 0, 3733 &coalesce_cfg, true); 3734 } 3735 3736 coalesce_cfg.num_of_rules = coalesce->n_rules; 3737 for (i = 0; i < coalesce->n_rules; i++) { 3738 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i], 3739 &coalesce_cfg.rule[i]); 3740 if (ret) { 3741 mwifiex_dbg(adapter, ERROR, 3742 "Recheck the patterns provided for rule %d\n", 3743 i + 1); 3744 return ret; 3745 } 3746 } 3747 3748 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG, 3749 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true); 3750 } 3751 3752 /* cfg80211 ops handler for tdls_mgmt. 3753 * Function prepares TDLS action frame packets and forwards them to FW 3754 */ 3755 static int 3756 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 3757 const u8 *peer, int link_id, u8 action_code, 3758 u8 dialog_token, u16 status_code, 3759 u32 peer_capability, bool initiator, 3760 const u8 *extra_ies, size_t extra_ies_len) 3761 { 3762 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3763 int ret; 3764 3765 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) 3766 return -EOPNOTSUPP; 3767 3768 /* make sure we are in station mode and connected */ 3769 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected)) 3770 return -EOPNOTSUPP; 3771 3772 switch (action_code) { 3773 case WLAN_TDLS_SETUP_REQUEST: 3774 mwifiex_dbg(priv->adapter, MSG, 3775 "Send TDLS Setup Request to %pM status_code=%d\n", 3776 peer, status_code); 3777 mwifiex_add_auto_tdls_peer(priv, peer); 3778 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3779 dialog_token, status_code, 3780 extra_ies, extra_ies_len); 3781 break; 3782 case WLAN_TDLS_SETUP_RESPONSE: 3783 mwifiex_add_auto_tdls_peer(priv, peer); 3784 mwifiex_dbg(priv->adapter, MSG, 3785 "Send TDLS Setup Response to %pM status_code=%d\n", 3786 peer, status_code); 3787 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3788 dialog_token, status_code, 3789 extra_ies, extra_ies_len); 3790 break; 3791 case WLAN_TDLS_SETUP_CONFIRM: 3792 mwifiex_dbg(priv->adapter, MSG, 3793 "Send TDLS Confirm to %pM status_code=%d\n", peer, 3794 status_code); 3795 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3796 dialog_token, status_code, 3797 extra_ies, extra_ies_len); 3798 break; 3799 case WLAN_TDLS_TEARDOWN: 3800 mwifiex_dbg(priv->adapter, MSG, 3801 "Send TDLS Tear down to %pM\n", peer); 3802 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3803 dialog_token, status_code, 3804 extra_ies, extra_ies_len); 3805 break; 3806 case WLAN_TDLS_DISCOVERY_REQUEST: 3807 mwifiex_dbg(priv->adapter, MSG, 3808 "Send TDLS Discovery Request to %pM\n", peer); 3809 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3810 dialog_token, status_code, 3811 extra_ies, extra_ies_len); 3812 break; 3813 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: 3814 mwifiex_dbg(priv->adapter, MSG, 3815 "Send TDLS Discovery Response to %pM\n", peer); 3816 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code, 3817 dialog_token, status_code, 3818 extra_ies, extra_ies_len); 3819 break; 3820 default: 3821 mwifiex_dbg(priv->adapter, ERROR, 3822 "Unknown TDLS mgmt/action frame %pM\n", peer); 3823 ret = -EINVAL; 3824 break; 3825 } 3826 3827 return ret; 3828 } 3829 3830 static int 3831 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 3832 const u8 *peer, enum nl80211_tdls_operation action) 3833 { 3834 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3835 3836 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) || 3837 !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)) 3838 return -EOPNOTSUPP; 3839 3840 /* make sure we are in station mode and connected */ 3841 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected)) 3842 return -EOPNOTSUPP; 3843 3844 mwifiex_dbg(priv->adapter, MSG, 3845 "TDLS peer=%pM, oper=%d\n", peer, action); 3846 3847 switch (action) { 3848 case NL80211_TDLS_ENABLE_LINK: 3849 action = MWIFIEX_TDLS_ENABLE_LINK; 3850 break; 3851 case NL80211_TDLS_DISABLE_LINK: 3852 action = MWIFIEX_TDLS_DISABLE_LINK; 3853 break; 3854 case NL80211_TDLS_TEARDOWN: 3855 /* shouldn't happen!*/ 3856 mwifiex_dbg(priv->adapter, ERROR, 3857 "tdls_oper: teardown from driver not supported\n"); 3858 return -EINVAL; 3859 case NL80211_TDLS_SETUP: 3860 /* shouldn't happen!*/ 3861 mwifiex_dbg(priv->adapter, ERROR, 3862 "tdls_oper: setup from driver not supported\n"); 3863 return -EINVAL; 3864 case NL80211_TDLS_DISCOVERY_REQ: 3865 /* shouldn't happen!*/ 3866 mwifiex_dbg(priv->adapter, ERROR, 3867 "tdls_oper: discovery from driver not supported\n"); 3868 return -EINVAL; 3869 default: 3870 mwifiex_dbg(priv->adapter, ERROR, 3871 "tdls_oper: operation not supported\n"); 3872 return -EOPNOTSUPP; 3873 } 3874 3875 return mwifiex_tdls_oper(priv, peer, action); 3876 } 3877 3878 static int 3879 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev, 3880 const u8 *addr, u8 oper_class, 3881 struct cfg80211_chan_def *chandef) 3882 { 3883 struct mwifiex_sta_node *sta_ptr; 3884 u16 chan; 3885 u8 second_chan_offset, band; 3886 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3887 3888 spin_lock_bh(&priv->sta_list_spinlock); 3889 sta_ptr = mwifiex_get_sta_entry(priv, addr); 3890 if (!sta_ptr) { 3891 spin_unlock_bh(&priv->sta_list_spinlock); 3892 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n", 3893 __func__, addr); 3894 return -ENOENT; 3895 } 3896 3897 if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] & 3898 WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) { 3899 spin_unlock_bh(&priv->sta_list_spinlock); 3900 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr); 3901 return -ENOENT; 3902 } 3903 3904 if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING || 3905 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) { 3906 spin_unlock_bh(&priv->sta_list_spinlock); 3907 wiphy_err(wiphy, "channel switch is running, abort request\n"); 3908 return -EALREADY; 3909 } 3910 spin_unlock_bh(&priv->sta_list_spinlock); 3911 3912 chan = chandef->chan->hw_value; 3913 second_chan_offset = mwifiex_get_sec_chan_offset(chan); 3914 band = chandef->chan->band; 3915 mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band); 3916 3917 return 0; 3918 } 3919 3920 static void 3921 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy, 3922 struct net_device *dev, 3923 const u8 *addr) 3924 { 3925 struct mwifiex_sta_node *sta_ptr; 3926 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3927 3928 spin_lock_bh(&priv->sta_list_spinlock); 3929 sta_ptr = mwifiex_get_sta_entry(priv, addr); 3930 if (!sta_ptr) { 3931 spin_unlock_bh(&priv->sta_list_spinlock); 3932 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n", 3933 __func__, addr); 3934 } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING || 3935 sta_ptr->tdls_status == TDLS_IN_BASE_CHAN || 3936 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) { 3937 spin_unlock_bh(&priv->sta_list_spinlock); 3938 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n", 3939 addr); 3940 } else { 3941 spin_unlock_bh(&priv->sta_list_spinlock); 3942 mwifiex_stop_tdls_cs(priv, addr); 3943 } 3944 } 3945 3946 static int 3947 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev, 3948 const u8 *mac, struct station_parameters *params) 3949 { 3950 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3951 3952 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) 3953 return -EOPNOTSUPP; 3954 3955 /* make sure we are in station mode and connected */ 3956 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected) 3957 return -EOPNOTSUPP; 3958 3959 return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK); 3960 } 3961 3962 static int 3963 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3964 struct cfg80211_csa_settings *params) 3965 { 3966 struct ieee_types_header *chsw_ie; 3967 struct ieee80211_channel_sw_ie *channel_sw; 3968 int chsw_msec; 3969 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3970 3971 if (priv->adapter->scan_processing) { 3972 mwifiex_dbg(priv->adapter, ERROR, 3973 "radar detection: scan in process...\n"); 3974 return -EBUSY; 3975 } 3976 3977 if (priv->wdev.cac_started) 3978 return -EBUSY; 3979 3980 if (cfg80211_chandef_identical(¶ms->chandef, 3981 &priv->dfs_chandef)) 3982 return -EINVAL; 3983 3984 chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH, 3985 params->beacon_csa.tail, 3986 params->beacon_csa.tail_len); 3987 if (!chsw_ie) { 3988 mwifiex_dbg(priv->adapter, ERROR, 3989 "Could not parse channel switch announcement IE\n"); 3990 return -EINVAL; 3991 } 3992 3993 channel_sw = (void *)(chsw_ie + 1); 3994 if (channel_sw->mode) { 3995 if (netif_carrier_ok(priv->netdev)) 3996 netif_carrier_off(priv->netdev); 3997 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter); 3998 } 3999 4000 if (mwifiex_del_mgmt_ies(priv)) 4001 mwifiex_dbg(priv->adapter, ERROR, 4002 "Failed to delete mgmt IEs!\n"); 4003 4004 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon_csa)) { 4005 mwifiex_dbg(priv->adapter, ERROR, 4006 "%s: setting mgmt ies failed\n", __func__); 4007 return -EFAULT; 4008 } 4009 4010 memcpy(&priv->dfs_chandef, ¶ms->chandef, sizeof(priv->dfs_chandef)); 4011 memcpy(&priv->beacon_after, ¶ms->beacon_after, 4012 sizeof(priv->beacon_after)); 4013 4014 chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100); 4015 queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work, 4016 msecs_to_jiffies(chsw_msec)); 4017 return 0; 4018 } 4019 4020 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy, 4021 struct wireless_dev *wdev, 4022 unsigned int link_id, 4023 struct cfg80211_chan_def *chandef) 4024 { 4025 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 4026 struct mwifiex_bssdescriptor *curr_bss; 4027 struct ieee80211_channel *chan; 4028 enum nl80211_channel_type chan_type; 4029 enum nl80211_band band; 4030 int freq; 4031 int ret = -ENODATA; 4032 4033 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP && 4034 cfg80211_chandef_valid(&priv->bss_chandef)) { 4035 *chandef = priv->bss_chandef; 4036 ret = 0; 4037 } else if (priv->media_connected) { 4038 curr_bss = &priv->curr_bss_params.bss_descriptor; 4039 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 4040 freq = ieee80211_channel_to_frequency(curr_bss->channel, band); 4041 chan = ieee80211_get_channel(wiphy, freq); 4042 4043 if (priv->ht_param_present) { 4044 chan_type = mwifiex_get_chan_type(priv); 4045 cfg80211_chandef_create(chandef, chan, chan_type); 4046 } else { 4047 cfg80211_chandef_create(chandef, chan, 4048 NL80211_CHAN_NO_HT); 4049 } 4050 ret = 0; 4051 } 4052 4053 return ret; 4054 } 4055 4056 #ifdef CONFIG_NL80211_TESTMODE 4057 4058 enum mwifiex_tm_attr { 4059 __MWIFIEX_TM_ATTR_INVALID = 0, 4060 MWIFIEX_TM_ATTR_CMD = 1, 4061 MWIFIEX_TM_ATTR_DATA = 2, 4062 4063 /* keep last */ 4064 __MWIFIEX_TM_ATTR_AFTER_LAST, 4065 MWIFIEX_TM_ATTR_MAX = __MWIFIEX_TM_ATTR_AFTER_LAST - 1, 4066 }; 4067 4068 static const struct nla_policy mwifiex_tm_policy[MWIFIEX_TM_ATTR_MAX + 1] = { 4069 [MWIFIEX_TM_ATTR_CMD] = { .type = NLA_U32 }, 4070 [MWIFIEX_TM_ATTR_DATA] = { .type = NLA_BINARY, 4071 .len = MWIFIEX_SIZE_OF_CMD_BUFFER }, 4072 }; 4073 4074 enum mwifiex_tm_command { 4075 MWIFIEX_TM_CMD_HOSTCMD = 0, 4076 }; 4077 4078 static int mwifiex_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev, 4079 void *data, int len) 4080 { 4081 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 4082 struct mwifiex_ds_misc_cmd *hostcmd; 4083 struct nlattr *tb[MWIFIEX_TM_ATTR_MAX + 1]; 4084 struct sk_buff *skb; 4085 int err; 4086 4087 if (!priv) 4088 return -EINVAL; 4089 4090 err = nla_parse_deprecated(tb, MWIFIEX_TM_ATTR_MAX, data, len, 4091 mwifiex_tm_policy, NULL); 4092 if (err) 4093 return err; 4094 4095 if (!tb[MWIFIEX_TM_ATTR_CMD]) 4096 return -EINVAL; 4097 4098 switch (nla_get_u32(tb[MWIFIEX_TM_ATTR_CMD])) { 4099 case MWIFIEX_TM_CMD_HOSTCMD: 4100 if (!tb[MWIFIEX_TM_ATTR_DATA]) 4101 return -EINVAL; 4102 4103 hostcmd = kzalloc(sizeof(*hostcmd), GFP_KERNEL); 4104 if (!hostcmd) 4105 return -ENOMEM; 4106 4107 hostcmd->len = nla_len(tb[MWIFIEX_TM_ATTR_DATA]); 4108 memcpy(hostcmd->cmd, nla_data(tb[MWIFIEX_TM_ATTR_DATA]), 4109 hostcmd->len); 4110 4111 if (mwifiex_send_cmd(priv, 0, 0, 0, hostcmd, true)) { 4112 dev_err(priv->adapter->dev, "Failed to process hostcmd\n"); 4113 kfree(hostcmd); 4114 return -EFAULT; 4115 } 4116 4117 /* process hostcmd response*/ 4118 skb = cfg80211_testmode_alloc_reply_skb(wiphy, hostcmd->len); 4119 if (!skb) { 4120 kfree(hostcmd); 4121 return -ENOMEM; 4122 } 4123 err = nla_put(skb, MWIFIEX_TM_ATTR_DATA, 4124 hostcmd->len, hostcmd->cmd); 4125 if (err) { 4126 kfree(hostcmd); 4127 kfree_skb(skb); 4128 return -EMSGSIZE; 4129 } 4130 4131 err = cfg80211_testmode_reply(skb); 4132 kfree(hostcmd); 4133 return err; 4134 default: 4135 return -EOPNOTSUPP; 4136 } 4137 } 4138 #endif 4139 4140 static int 4141 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy, 4142 struct net_device *dev, 4143 struct cfg80211_chan_def *chandef, 4144 u32 cac_time_ms) 4145 { 4146 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 4147 struct mwifiex_radar_params radar_params; 4148 4149 if (priv->adapter->scan_processing) { 4150 mwifiex_dbg(priv->adapter, ERROR, 4151 "radar detection: scan already in process...\n"); 4152 return -EBUSY; 4153 } 4154 4155 if (!mwifiex_is_11h_active(priv)) { 4156 mwifiex_dbg(priv->adapter, INFO, 4157 "Enable 11h extensions in FW\n"); 4158 if (mwifiex_11h_activate(priv, true)) { 4159 mwifiex_dbg(priv->adapter, ERROR, 4160 "Failed to activate 11h extensions!!"); 4161 return -1; 4162 } 4163 priv->state_11h.is_11h_active = true; 4164 } 4165 4166 memset(&radar_params, 0, sizeof(struct mwifiex_radar_params)); 4167 radar_params.chandef = chandef; 4168 radar_params.cac_time_ms = cac_time_ms; 4169 4170 memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef)); 4171 4172 if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST, 4173 HostCmd_ACT_GEN_SET, 0, &radar_params, true)) 4174 return -1; 4175 4176 queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work, 4177 msecs_to_jiffies(cac_time_ms)); 4178 return 0; 4179 } 4180 4181 static int 4182 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev, 4183 const u8 *mac, 4184 struct station_parameters *params) 4185 { 4186 int ret; 4187 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 4188 4189 /* we support change_station handler only for TDLS peers*/ 4190 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) 4191 return -EOPNOTSUPP; 4192 4193 /* make sure we are in station mode and connected */ 4194 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected) 4195 return -EOPNOTSUPP; 4196 4197 priv->sta_params = params; 4198 4199 ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK); 4200 priv->sta_params = NULL; 4201 4202 return ret; 4203 } 4204 4205 /* station cfg80211 operations */ 4206 static struct cfg80211_ops mwifiex_cfg80211_ops = { 4207 .add_virtual_intf = mwifiex_add_virtual_intf, 4208 .del_virtual_intf = mwifiex_del_virtual_intf, 4209 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf, 4210 .scan = mwifiex_cfg80211_scan, 4211 .connect = mwifiex_cfg80211_connect, 4212 .disconnect = mwifiex_cfg80211_disconnect, 4213 .get_station = mwifiex_cfg80211_get_station, 4214 .dump_station = mwifiex_cfg80211_dump_station, 4215 .dump_survey = mwifiex_cfg80211_dump_survey, 4216 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params, 4217 .join_ibss = mwifiex_cfg80211_join_ibss, 4218 .leave_ibss = mwifiex_cfg80211_leave_ibss, 4219 .add_key = mwifiex_cfg80211_add_key, 4220 .del_key = mwifiex_cfg80211_del_key, 4221 .set_default_mgmt_key = mwifiex_cfg80211_set_default_mgmt_key, 4222 .mgmt_tx = mwifiex_cfg80211_mgmt_tx, 4223 .update_mgmt_frame_registrations = 4224 mwifiex_cfg80211_update_mgmt_frame_registrations, 4225 .remain_on_channel = mwifiex_cfg80211_remain_on_channel, 4226 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel, 4227 .set_default_key = mwifiex_cfg80211_set_default_key, 4228 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt, 4229 .set_tx_power = mwifiex_cfg80211_set_tx_power, 4230 .get_tx_power = mwifiex_cfg80211_get_tx_power, 4231 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask, 4232 .start_ap = mwifiex_cfg80211_start_ap, 4233 .stop_ap = mwifiex_cfg80211_stop_ap, 4234 .change_beacon = mwifiex_cfg80211_change_beacon, 4235 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config, 4236 .set_antenna = mwifiex_cfg80211_set_antenna, 4237 .get_antenna = mwifiex_cfg80211_get_antenna, 4238 .del_station = mwifiex_cfg80211_del_station, 4239 .sched_scan_start = mwifiex_cfg80211_sched_scan_start, 4240 .sched_scan_stop = mwifiex_cfg80211_sched_scan_stop, 4241 #ifdef CONFIG_PM 4242 .suspend = mwifiex_cfg80211_suspend, 4243 .resume = mwifiex_cfg80211_resume, 4244 .set_wakeup = mwifiex_cfg80211_set_wakeup, 4245 .set_rekey_data = mwifiex_set_rekey_data, 4246 #endif 4247 .set_coalesce = mwifiex_cfg80211_set_coalesce, 4248 .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt, 4249 .tdls_oper = mwifiex_cfg80211_tdls_oper, 4250 .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch, 4251 .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch, 4252 .add_station = mwifiex_cfg80211_add_station, 4253 .change_station = mwifiex_cfg80211_change_station, 4254 CFG80211_TESTMODE_CMD(mwifiex_tm_cmd) 4255 .get_channel = mwifiex_cfg80211_get_channel, 4256 .start_radar_detection = mwifiex_cfg80211_start_radar_detection, 4257 .channel_switch = mwifiex_cfg80211_channel_switch, 4258 }; 4259 4260 #ifdef CONFIG_PM 4261 static const struct wiphy_wowlan_support mwifiex_wowlan_support = { 4262 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT | 4263 WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 4264 WIPHY_WOWLAN_GTK_REKEY_FAILURE, 4265 .n_patterns = MWIFIEX_MEF_MAX_FILTERS, 4266 .pattern_min_len = 1, 4267 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4268 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4269 .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS, 4270 }; 4271 4272 static const struct wiphy_wowlan_support mwifiex_wowlan_support_no_gtk = { 4273 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT | 4274 WIPHY_WOWLAN_NET_DETECT, 4275 .n_patterns = MWIFIEX_MEF_MAX_FILTERS, 4276 .pattern_min_len = 1, 4277 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4278 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4279 .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS, 4280 }; 4281 #endif 4282 4283 static bool mwifiex_is_valid_alpha2(const char *alpha2) 4284 { 4285 if (!alpha2 || strlen(alpha2) != 2) 4286 return false; 4287 4288 if (isalpha(alpha2[0]) && isalpha(alpha2[1])) 4289 return true; 4290 4291 return false; 4292 } 4293 4294 static const struct wiphy_coalesce_support mwifiex_coalesce_support = { 4295 .n_rules = MWIFIEX_COALESCE_MAX_RULES, 4296 .max_delay = MWIFIEX_MAX_COALESCING_DELAY, 4297 .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS, 4298 .pattern_min_len = 1, 4299 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4300 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4301 }; 4302 4303 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter) 4304 { 4305 u32 n_channels_bg, n_channels_a = 0; 4306 4307 n_channels_bg = mwifiex_band_2ghz.n_channels; 4308 4309 if (adapter->config_bands & BAND_A) 4310 n_channels_a = mwifiex_band_5ghz.n_channels; 4311 4312 /* allocate twice the number total channels, since the driver issues an 4313 * additional active scan request for hidden SSIDs on passive channels. 4314 */ 4315 adapter->num_in_chan_stats = 2 * (n_channels_bg + n_channels_a); 4316 adapter->chan_stats = vmalloc(array_size(sizeof(*adapter->chan_stats), 4317 adapter->num_in_chan_stats)); 4318 4319 if (!adapter->chan_stats) 4320 return -ENOMEM; 4321 4322 return 0; 4323 } 4324 4325 /* 4326 * This function registers the device with CFG802.11 subsystem. 4327 * 4328 * The function creates the wireless device/wiphy, populates it with 4329 * default parameters and handler function pointers, and finally 4330 * registers the device. 4331 */ 4332 4333 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter) 4334 { 4335 int ret; 4336 void *wdev_priv; 4337 struct wiphy *wiphy; 4338 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA]; 4339 u8 *country_code; 4340 u32 thr, retry; 4341 4342 /* create a new wiphy for use with cfg80211 */ 4343 wiphy = wiphy_new(&mwifiex_cfg80211_ops, 4344 sizeof(struct mwifiex_adapter *)); 4345 if (!wiphy) { 4346 mwifiex_dbg(adapter, ERROR, 4347 "%s: creating new wiphy\n", __func__); 4348 return -ENOMEM; 4349 } 4350 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH; 4351 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN; 4352 wiphy->mgmt_stypes = mwifiex_mgmt_stypes; 4353 wiphy->max_remain_on_channel_duration = 5000; 4354 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 4355 BIT(NL80211_IFTYPE_P2P_CLIENT) | 4356 BIT(NL80211_IFTYPE_P2P_GO) | 4357 BIT(NL80211_IFTYPE_AP); 4358 4359 if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info)) 4360 wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC); 4361 4362 wiphy->bands[NL80211_BAND_2GHZ] = &mwifiex_band_2ghz; 4363 if (adapter->config_bands & BAND_A) 4364 wiphy->bands[NL80211_BAND_5GHZ] = &mwifiex_band_5ghz; 4365 else 4366 wiphy->bands[NL80211_BAND_5GHZ] = NULL; 4367 4368 if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info)) 4369 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs; 4370 else if (adapter->is_hw_11ac_capable) 4371 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht; 4372 else 4373 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta; 4374 wiphy->n_iface_combinations = 1; 4375 4376 if (adapter->max_sta_conn > adapter->max_p2p_conn) 4377 wiphy->max_ap_assoc_sta = adapter->max_sta_conn; 4378 else 4379 wiphy->max_ap_assoc_sta = adapter->max_p2p_conn; 4380 4381 /* Initialize cipher suits */ 4382 wiphy->cipher_suites = mwifiex_cipher_suites; 4383 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites); 4384 4385 if (adapter->regd) { 4386 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 4387 REGULATORY_DISABLE_BEACON_HINTS | 4388 REGULATORY_COUNTRY_IE_IGNORE; 4389 wiphy_apply_custom_regulatory(wiphy, adapter->regd); 4390 } 4391 4392 ether_addr_copy(wiphy->perm_addr, adapter->perm_addr); 4393 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 4394 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | 4395 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | 4396 WIPHY_FLAG_AP_UAPSD | 4397 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | 4398 WIPHY_FLAG_HAS_CHANNEL_SWITCH | 4399 WIPHY_FLAG_NETNS_OK | 4400 WIPHY_FLAG_PS_ON_BY_DEFAULT; 4401 4402 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info)) 4403 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS | 4404 WIPHY_FLAG_TDLS_EXTERNAL_SETUP; 4405 4406 #ifdef CONFIG_PM 4407 if (ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info)) 4408 wiphy->wowlan = &mwifiex_wowlan_support; 4409 else 4410 wiphy->wowlan = &mwifiex_wowlan_support_no_gtk; 4411 #endif 4412 4413 wiphy->coalesce = &mwifiex_coalesce_support; 4414 4415 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 4416 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 4417 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; 4418 4419 wiphy->max_sched_scan_reqs = 1; 4420 wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH; 4421 wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN; 4422 wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH; 4423 4424 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1; 4425 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1; 4426 4427 wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER | 4428 NL80211_FEATURE_LOW_PRIORITY_SCAN | 4429 NL80211_FEATURE_NEED_OBSS_SCAN; 4430 4431 if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info)) 4432 wiphy->features |= NL80211_FEATURE_HT_IBSS; 4433 4434 if (ISSUPP_RANDOM_MAC(adapter->fw_cap_info)) 4435 wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 4436 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 4437 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 4438 4439 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info)) 4440 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 4441 4442 if (adapter->fw_api_ver == MWIFIEX_FW_V15) 4443 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS; 4444 4445 /* Reserve space for mwifiex specific private data for BSS */ 4446 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv); 4447 4448 wiphy->reg_notifier = mwifiex_reg_notifier; 4449 4450 /* Set struct mwifiex_adapter pointer in wiphy_priv */ 4451 wdev_priv = wiphy_priv(wiphy); 4452 *(unsigned long *)wdev_priv = (unsigned long)adapter; 4453 4454 set_wiphy_dev(wiphy, priv->adapter->dev); 4455 4456 ret = wiphy_register(wiphy); 4457 if (ret < 0) { 4458 mwifiex_dbg(adapter, ERROR, 4459 "%s: wiphy_register failed: %d\n", __func__, ret); 4460 wiphy_free(wiphy); 4461 return ret; 4462 } 4463 4464 if (!adapter->regd) { 4465 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) { 4466 mwifiex_dbg(adapter, INFO, 4467 "driver hint alpha2: %2.2s\n", reg_alpha2); 4468 regulatory_hint(wiphy, reg_alpha2); 4469 } else { 4470 if (adapter->region_code == 0x00) { 4471 mwifiex_dbg(adapter, WARN, 4472 "Ignore world regulatory domain\n"); 4473 } else { 4474 wiphy->regulatory_flags |= 4475 REGULATORY_DISABLE_BEACON_HINTS | 4476 REGULATORY_COUNTRY_IE_IGNORE; 4477 country_code = 4478 mwifiex_11d_code_2_region( 4479 adapter->region_code); 4480 if (country_code && 4481 regulatory_hint(wiphy, country_code)) 4482 mwifiex_dbg(priv->adapter, ERROR, 4483 "regulatory_hint() failed\n"); 4484 } 4485 } 4486 } 4487 4488 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4489 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true); 4490 wiphy->frag_threshold = thr; 4491 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4492 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true); 4493 wiphy->rts_threshold = thr; 4494 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4495 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true); 4496 wiphy->retry_short = (u8) retry; 4497 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4498 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true); 4499 wiphy->retry_long = (u8) retry; 4500 4501 adapter->wiphy = wiphy; 4502 return ret; 4503 } 4504