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 memcpy(bss_cfg->mac_addr, priv->curr_addr, ETH_ALEN); 2051 2052 if (params->beacon_interval) 2053 bss_cfg->beacon_period = params->beacon_interval; 2054 if (params->dtim_period) 2055 bss_cfg->dtim_period = params->dtim_period; 2056 2057 if (params->ssid && params->ssid_len) { 2058 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len); 2059 bss_cfg->ssid.ssid_len = params->ssid_len; 2060 } 2061 if (params->inactivity_timeout > 0) { 2062 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */ 2063 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout; 2064 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout; 2065 } 2066 2067 switch (params->hidden_ssid) { 2068 case NL80211_HIDDEN_SSID_NOT_IN_USE: 2069 bss_cfg->bcast_ssid_ctl = 1; 2070 break; 2071 case NL80211_HIDDEN_SSID_ZERO_LEN: 2072 bss_cfg->bcast_ssid_ctl = 0; 2073 break; 2074 case NL80211_HIDDEN_SSID_ZERO_CONTENTS: 2075 bss_cfg->bcast_ssid_ctl = 2; 2076 break; 2077 default: 2078 kfree(bss_cfg); 2079 return -EINVAL; 2080 } 2081 2082 mwifiex_uap_set_channel(priv, bss_cfg, params->chandef); 2083 mwifiex_set_uap_rates(bss_cfg, params); 2084 2085 if (mwifiex_set_secure_params(priv, bss_cfg, params)) { 2086 mwifiex_dbg(priv->adapter, ERROR, 2087 "Failed to parse security parameters!\n"); 2088 goto out; 2089 } 2090 2091 mwifiex_set_ht_params(priv, bss_cfg, params); 2092 2093 if (priv->adapter->is_hw_11ac_capable) { 2094 mwifiex_set_vht_params(priv, bss_cfg, params); 2095 mwifiex_set_vht_width(priv, params->chandef.width, 2096 priv->ap_11ac_enabled); 2097 } 2098 2099 if (priv->ap_11ac_enabled) 2100 mwifiex_set_11ac_ba_params(priv); 2101 else 2102 mwifiex_set_ba_params(priv); 2103 2104 mwifiex_set_wmm_params(priv, bss_cfg, params); 2105 2106 if (mwifiex_is_11h_active(priv)) 2107 mwifiex_set_tpc_params(priv, bss_cfg, params); 2108 2109 if (mwifiex_is_11h_active(priv) && 2110 !cfg80211_chandef_dfs_required(wiphy, ¶ms->chandef, 2111 priv->bss_mode)) { 2112 mwifiex_dbg(priv->adapter, INFO, 2113 "Disable 11h extensions in FW\n"); 2114 if (mwifiex_11h_activate(priv, false)) { 2115 mwifiex_dbg(priv->adapter, ERROR, 2116 "Failed to disable 11h extensions!!"); 2117 goto out; 2118 } 2119 priv->state_11h.is_11h_active = false; 2120 } 2121 2122 mwifiex_config_uap_11d(priv, ¶ms->beacon); 2123 2124 if (mwifiex_config_start_uap(priv, bss_cfg)) { 2125 mwifiex_dbg(priv->adapter, ERROR, 2126 "Failed to start AP\n"); 2127 goto out; 2128 } 2129 2130 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon)) 2131 goto out; 2132 2133 if (!netif_carrier_ok(priv->netdev)) 2134 netif_carrier_on(priv->netdev); 2135 mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter); 2136 2137 memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg)); 2138 kfree(bss_cfg); 2139 return 0; 2140 2141 out: 2142 kfree(bss_cfg); 2143 return -1; 2144 } 2145 2146 /* 2147 * CFG802.11 operation handler for disconnection request. 2148 * 2149 * This function does not work when there is already a disconnection 2150 * procedure going on. 2151 */ 2152 static int 2153 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev, 2154 u16 reason_code) 2155 { 2156 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2157 2158 if (!mwifiex_stop_bg_scan(priv)) 2159 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0); 2160 2161 if (mwifiex_deauthenticate(priv, NULL)) 2162 return -EFAULT; 2163 2164 eth_zero_addr(priv->cfg_bssid); 2165 priv->hs2_enabled = false; 2166 2167 return 0; 2168 } 2169 2170 /* 2171 * This function informs the CFG802.11 subsystem of a new IBSS. 2172 * 2173 * The following information are sent to the CFG802.11 subsystem 2174 * to register the new IBSS. If we do not register the new IBSS, 2175 * a kernel panic will result. 2176 * - SSID 2177 * - SSID length 2178 * - BSSID 2179 * - Channel 2180 */ 2181 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv) 2182 { 2183 struct ieee80211_channel *chan; 2184 struct mwifiex_bss_info bss_info; 2185 struct cfg80211_bss *bss; 2186 int ie_len; 2187 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)]; 2188 enum nl80211_band band; 2189 2190 if (mwifiex_get_bss_info(priv, &bss_info)) 2191 return -1; 2192 2193 ie_buf[0] = WLAN_EID_SSID; 2194 ie_buf[1] = bss_info.ssid.ssid_len; 2195 2196 memcpy(&ie_buf[sizeof(struct ieee_types_header)], 2197 &bss_info.ssid.ssid, bss_info.ssid.ssid_len); 2198 ie_len = ie_buf[1] + sizeof(struct ieee_types_header); 2199 2200 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 2201 chan = ieee80211_get_channel(priv->wdev.wiphy, 2202 ieee80211_channel_to_frequency(bss_info.bss_chan, 2203 band)); 2204 2205 bss = cfg80211_inform_bss(priv->wdev.wiphy, chan, 2206 CFG80211_BSS_FTYPE_UNKNOWN, 2207 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS, 2208 0, ie_buf, ie_len, 0, GFP_KERNEL); 2209 if (bss) { 2210 cfg80211_put_bss(priv->wdev.wiphy, bss); 2211 ether_addr_copy(priv->cfg_bssid, bss_info.bssid); 2212 } 2213 2214 return 0; 2215 } 2216 2217 /* 2218 * This function connects with a BSS. 2219 * 2220 * This function handles both Infra and Ad-Hoc modes. It also performs 2221 * validity checking on the provided parameters, disconnects from the 2222 * current BSS (if any), sets up the association/scan parameters, 2223 * including security settings, and performs specific SSID scan before 2224 * trying to connect. 2225 * 2226 * For Infra mode, the function returns failure if the specified SSID 2227 * is not found in scan table. However, for Ad-Hoc mode, it can create 2228 * the IBSS if it does not exist. On successful completion in either case, 2229 * the function notifies the CFG802.11 subsystem of the new BSS connection. 2230 */ 2231 static int 2232 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, 2233 const u8 *ssid, const u8 *bssid, int mode, 2234 struct ieee80211_channel *channel, 2235 struct cfg80211_connect_params *sme, bool privacy, 2236 struct cfg80211_bss **sel_bss) 2237 { 2238 struct cfg80211_ssid req_ssid; 2239 int ret, auth_type = 0; 2240 struct cfg80211_bss *bss = NULL; 2241 u8 is_scanning_required = 0; 2242 2243 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid)); 2244 2245 req_ssid.ssid_len = ssid_len; 2246 if (ssid_len > IEEE80211_MAX_SSID_LEN) { 2247 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n"); 2248 return -EINVAL; 2249 } 2250 2251 memcpy(req_ssid.ssid, ssid, ssid_len); 2252 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) { 2253 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n"); 2254 return -EINVAL; 2255 } 2256 2257 /* As this is new association, clear locally stored 2258 * keys and security related flags */ 2259 priv->sec_info.wpa_enabled = false; 2260 priv->sec_info.wpa2_enabled = false; 2261 priv->wep_key_curr_index = 0; 2262 priv->sec_info.encryption_mode = 0; 2263 priv->sec_info.is_authtype_auto = 0; 2264 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1); 2265 2266 if (mode == NL80211_IFTYPE_ADHOC) { 2267 u16 enable = true; 2268 2269 /* set ibss coalescing_status */ 2270 ret = mwifiex_send_cmd( 2271 priv, 2272 HostCmd_CMD_802_11_IBSS_COALESCING_STATUS, 2273 HostCmd_ACT_GEN_SET, 0, &enable, true); 2274 if (ret) 2275 return ret; 2276 2277 /* "privacy" is set only for ad-hoc mode */ 2278 if (privacy) { 2279 /* 2280 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that 2281 * the firmware can find a matching network from the 2282 * scan. The cfg80211 does not give us the encryption 2283 * mode at this stage so just setting it to WEP here. 2284 */ 2285 priv->sec_info.encryption_mode = 2286 WLAN_CIPHER_SUITE_WEP104; 2287 priv->sec_info.authentication_mode = 2288 NL80211_AUTHTYPE_OPEN_SYSTEM; 2289 } 2290 2291 goto done; 2292 } 2293 2294 /* Now handle infra mode. "sme" is valid for infra mode only */ 2295 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { 2296 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; 2297 priv->sec_info.is_authtype_auto = 1; 2298 } else { 2299 auth_type = sme->auth_type; 2300 } 2301 2302 if (sme->crypto.n_ciphers_pairwise) { 2303 priv->sec_info.encryption_mode = 2304 sme->crypto.ciphers_pairwise[0]; 2305 priv->sec_info.authentication_mode = auth_type; 2306 } 2307 2308 if (sme->crypto.cipher_group) { 2309 priv->sec_info.encryption_mode = sme->crypto.cipher_group; 2310 priv->sec_info.authentication_mode = auth_type; 2311 } 2312 if (sme->ie) 2313 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len); 2314 2315 if (sme->key) { 2316 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) { 2317 mwifiex_dbg(priv->adapter, INFO, 2318 "info: setting wep encryption\t" 2319 "with key len %d\n", sme->key_len); 2320 priv->wep_key_curr_index = sme->key_idx; 2321 ret = mwifiex_set_encode(priv, NULL, sme->key, 2322 sme->key_len, sme->key_idx, 2323 NULL, 0); 2324 } 2325 } 2326 done: 2327 /* 2328 * Scan entries are valid for some time (15 sec). So we can save one 2329 * active scan time if we just try cfg80211_get_bss first. If it fails 2330 * then request scan and cfg80211_get_bss() again for final output. 2331 */ 2332 while (1) { 2333 if (is_scanning_required) { 2334 /* Do specific SSID scanning */ 2335 if (mwifiex_request_scan(priv, &req_ssid)) { 2336 mwifiex_dbg(priv->adapter, ERROR, "scan error\n"); 2337 return -EFAULT; 2338 } 2339 } 2340 2341 /* Find the BSS we want using available scan results */ 2342 if (mode == NL80211_IFTYPE_ADHOC) 2343 bss = cfg80211_get_bss(priv->wdev.wiphy, channel, 2344 bssid, ssid, ssid_len, 2345 IEEE80211_BSS_TYPE_IBSS, 2346 IEEE80211_PRIVACY_ANY); 2347 else 2348 bss = cfg80211_get_bss(priv->wdev.wiphy, channel, 2349 bssid, ssid, ssid_len, 2350 IEEE80211_BSS_TYPE_ESS, 2351 IEEE80211_PRIVACY_ANY); 2352 2353 if (!bss) { 2354 if (is_scanning_required) { 2355 mwifiex_dbg(priv->adapter, MSG, 2356 "assoc: requested bss not found in scan results\n"); 2357 break; 2358 } 2359 is_scanning_required = 1; 2360 } else { 2361 mwifiex_dbg(priv->adapter, MSG, 2362 "info: trying to associate to bssid %pM\n", 2363 bss->bssid); 2364 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN); 2365 break; 2366 } 2367 } 2368 2369 if (bss) 2370 cfg80211_ref_bss(priv->adapter->wiphy, bss); 2371 2372 ret = mwifiex_bss_start(priv, bss, &req_ssid); 2373 if (ret) 2374 goto cleanup; 2375 2376 if (mode == NL80211_IFTYPE_ADHOC) { 2377 /* Inform the BSS information to kernel, otherwise 2378 * kernel will give a panic after successful assoc */ 2379 if (mwifiex_cfg80211_inform_ibss_bss(priv)) { 2380 ret = -EFAULT; 2381 goto cleanup; 2382 } 2383 } 2384 2385 /* Pass the selected BSS entry to caller. */ 2386 if (sel_bss) { 2387 *sel_bss = bss; 2388 bss = NULL; 2389 } 2390 2391 cleanup: 2392 if (bss) 2393 cfg80211_put_bss(priv->adapter->wiphy, bss); 2394 return ret; 2395 } 2396 2397 /* 2398 * CFG802.11 operation handler for association request. 2399 * 2400 * This function does not work when the current mode is set to Ad-Hoc, or 2401 * when there is already an association procedure going on. The given BSS 2402 * information is used to associate. 2403 */ 2404 static int 2405 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, 2406 struct cfg80211_connect_params *sme) 2407 { 2408 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2409 struct mwifiex_adapter *adapter = priv->adapter; 2410 struct cfg80211_bss *bss = NULL; 2411 int ret; 2412 2413 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) { 2414 mwifiex_dbg(adapter, ERROR, 2415 "%s: reject infra assoc request in non-STA role\n", 2416 dev->name); 2417 return -EINVAL; 2418 } 2419 2420 if (priv->wdev.connected) { 2421 mwifiex_dbg(adapter, ERROR, 2422 "%s: already connected\n", dev->name); 2423 return -EALREADY; 2424 } 2425 2426 if (priv->scan_block) 2427 priv->scan_block = false; 2428 2429 if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags) || 2430 test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags)) { 2431 mwifiex_dbg(adapter, ERROR, 2432 "%s: Ignore connection.\t" 2433 "Card removed or FW in bad state\n", 2434 dev->name); 2435 return -EFAULT; 2436 } 2437 2438 mwifiex_dbg(adapter, INFO, 2439 "info: Trying to associate to bssid %pM\n", sme->bssid); 2440 2441 if (!mwifiex_stop_bg_scan(priv)) 2442 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0); 2443 2444 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid, 2445 priv->bss_mode, sme->channel, sme, 0, 2446 &bss); 2447 if (!ret) { 2448 cfg80211_connect_bss(priv->netdev, priv->cfg_bssid, bss, NULL, 2449 0, NULL, 0, WLAN_STATUS_SUCCESS, 2450 GFP_KERNEL, NL80211_TIMEOUT_UNSPECIFIED); 2451 mwifiex_dbg(priv->adapter, MSG, 2452 "info: associated to bssid %pM successfully\n", 2453 priv->cfg_bssid); 2454 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) && 2455 priv->adapter->auto_tdls && 2456 priv->bss_type == MWIFIEX_BSS_TYPE_STA) 2457 mwifiex_setup_auto_tdls_timer(priv); 2458 } else { 2459 mwifiex_dbg(priv->adapter, ERROR, 2460 "info: association to bssid %pM failed\n", 2461 priv->cfg_bssid); 2462 eth_zero_addr(priv->cfg_bssid); 2463 2464 if (ret > 0) 2465 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, 2466 NULL, 0, NULL, 0, ret, 2467 GFP_KERNEL); 2468 else 2469 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, 2470 NULL, 0, NULL, 0, 2471 WLAN_STATUS_UNSPECIFIED_FAILURE, 2472 GFP_KERNEL); 2473 } 2474 2475 return 0; 2476 } 2477 2478 /* 2479 * This function sets following parameters for ibss network. 2480 * - channel 2481 * - start band 2482 * - 11n flag 2483 * - secondary channel offset 2484 */ 2485 static int mwifiex_set_ibss_params(struct mwifiex_private *priv, 2486 struct cfg80211_ibss_params *params) 2487 { 2488 struct mwifiex_adapter *adapter = priv->adapter; 2489 int index = 0, i; 2490 u8 config_bands = 0; 2491 2492 if (params->chandef.chan->band == NL80211_BAND_2GHZ) { 2493 if (!params->basic_rates) { 2494 config_bands = BAND_B | BAND_G; 2495 } else { 2496 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) { 2497 /* 2498 * Rates below 6 Mbps in the table are CCK 2499 * rates; 802.11b and from 6 they are OFDM; 2500 * 802.11G 2501 */ 2502 if (mwifiex_rates[i].bitrate == 60) { 2503 index = 1 << i; 2504 break; 2505 } 2506 } 2507 2508 if (params->basic_rates < index) { 2509 config_bands = BAND_B; 2510 } else { 2511 config_bands = BAND_G; 2512 if (params->basic_rates % index) 2513 config_bands |= BAND_B; 2514 } 2515 } 2516 2517 if (cfg80211_get_chandef_type(¶ms->chandef) != 2518 NL80211_CHAN_NO_HT) 2519 config_bands |= BAND_G | BAND_GN; 2520 } else { 2521 if (cfg80211_get_chandef_type(¶ms->chandef) == 2522 NL80211_CHAN_NO_HT) 2523 config_bands = BAND_A; 2524 else 2525 config_bands = BAND_AN | BAND_A; 2526 } 2527 2528 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) { 2529 adapter->config_bands = config_bands; 2530 adapter->adhoc_start_band = config_bands; 2531 2532 if ((config_bands & BAND_GN) || (config_bands & BAND_AN)) 2533 adapter->adhoc_11n_enabled = true; 2534 else 2535 adapter->adhoc_11n_enabled = false; 2536 } 2537 2538 adapter->sec_chan_offset = 2539 mwifiex_chan_type_to_sec_chan_offset( 2540 cfg80211_get_chandef_type(¶ms->chandef)); 2541 priv->adhoc_channel = ieee80211_frequency_to_channel( 2542 params->chandef.chan->center_freq); 2543 2544 mwifiex_dbg(adapter, INFO, 2545 "info: set ibss band %d, chan %d, chan offset %d\n", 2546 config_bands, priv->adhoc_channel, 2547 adapter->sec_chan_offset); 2548 2549 return 0; 2550 } 2551 2552 /* 2553 * CFG802.11 operation handler to join an IBSS. 2554 * 2555 * This function does not work in any mode other than Ad-Hoc, or if 2556 * a join operation is already in progress. 2557 */ 2558 static int 2559 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2560 struct cfg80211_ibss_params *params) 2561 { 2562 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2563 int ret = 0; 2564 2565 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) { 2566 mwifiex_dbg(priv->adapter, ERROR, 2567 "request to join ibss received\t" 2568 "when station is not in ibss mode\n"); 2569 goto done; 2570 } 2571 2572 mwifiex_dbg(priv->adapter, MSG, "info: trying to join to bssid %pM\n", 2573 params->bssid); 2574 2575 mwifiex_set_ibss_params(priv, params); 2576 2577 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid, 2578 params->bssid, priv->bss_mode, 2579 params->chandef.chan, NULL, 2580 params->privacy, NULL); 2581 done: 2582 if (!ret) { 2583 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, 2584 params->chandef.chan, GFP_KERNEL); 2585 mwifiex_dbg(priv->adapter, MSG, 2586 "info: joined/created adhoc network with bssid\t" 2587 "%pM successfully\n", priv->cfg_bssid); 2588 } else { 2589 mwifiex_dbg(priv->adapter, ERROR, 2590 "info: failed creating/joining adhoc network\n"); 2591 } 2592 2593 return ret; 2594 } 2595 2596 /* 2597 * CFG802.11 operation handler to leave an IBSS. 2598 * 2599 * This function does not work if a leave operation is 2600 * already in progress. 2601 */ 2602 static int 2603 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2604 { 2605 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2606 2607 mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n", 2608 priv->cfg_bssid); 2609 if (mwifiex_deauthenticate(priv, NULL)) 2610 return -EFAULT; 2611 2612 eth_zero_addr(priv->cfg_bssid); 2613 2614 return 0; 2615 } 2616 2617 /* 2618 * CFG802.11 operation handler for scan request. 2619 * 2620 * This function issues a scan request to the firmware based upon 2621 * the user specified scan configuration. On successful completion, 2622 * it also informs the results. 2623 */ 2624 static int 2625 mwifiex_cfg80211_scan(struct wiphy *wiphy, 2626 struct cfg80211_scan_request *request) 2627 { 2628 struct net_device *dev = request->wdev->netdev; 2629 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2630 int i, offset, ret; 2631 struct ieee80211_channel *chan; 2632 struct ieee_types_header *ie; 2633 struct mwifiex_user_scan_cfg *user_scan_cfg; 2634 u8 mac_addr[ETH_ALEN]; 2635 2636 mwifiex_dbg(priv->adapter, CMD, 2637 "info: received scan request on %s\n", dev->name); 2638 2639 /* Block scan request if scan operation or scan cleanup when interface 2640 * is disabled is in process 2641 */ 2642 if (priv->scan_request || priv->scan_aborting) { 2643 mwifiex_dbg(priv->adapter, WARN, 2644 "cmd: Scan already in process..\n"); 2645 return -EBUSY; 2646 } 2647 2648 if (!priv->wdev.connected && priv->scan_block) 2649 priv->scan_block = false; 2650 2651 if (!mwifiex_stop_bg_scan(priv)) 2652 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0); 2653 2654 user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL); 2655 if (!user_scan_cfg) 2656 return -ENOMEM; 2657 2658 priv->scan_request = request; 2659 2660 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) { 2661 get_random_mask_addr(mac_addr, request->mac_addr, 2662 request->mac_addr_mask); 2663 ether_addr_copy(request->mac_addr, mac_addr); 2664 ether_addr_copy(user_scan_cfg->random_mac, mac_addr); 2665 } 2666 2667 user_scan_cfg->num_ssids = request->n_ssids; 2668 user_scan_cfg->ssid_list = request->ssids; 2669 2670 if (request->ie && request->ie_len) { 2671 offset = 0; 2672 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2673 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR) 2674 continue; 2675 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN; 2676 ie = (struct ieee_types_header *)(request->ie + offset); 2677 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len); 2678 offset += sizeof(*ie) + ie->len; 2679 2680 if (offset >= request->ie_len) 2681 break; 2682 } 2683 } 2684 2685 for (i = 0; i < min_t(u32, request->n_channels, 2686 MWIFIEX_USER_SCAN_CHAN_MAX); i++) { 2687 chan = request->channels[i]; 2688 user_scan_cfg->chan_list[i].chan_number = chan->hw_value; 2689 user_scan_cfg->chan_list[i].radio_type = chan->band; 2690 2691 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids) 2692 user_scan_cfg->chan_list[i].scan_type = 2693 MWIFIEX_SCAN_TYPE_PASSIVE; 2694 else 2695 user_scan_cfg->chan_list[i].scan_type = 2696 MWIFIEX_SCAN_TYPE_ACTIVE; 2697 2698 user_scan_cfg->chan_list[i].scan_time = 0; 2699 } 2700 2701 if (priv->adapter->scan_chan_gap_enabled && 2702 mwifiex_is_any_intf_active(priv)) 2703 user_scan_cfg->scan_chan_gap = 2704 priv->adapter->scan_chan_gap_time; 2705 2706 ret = mwifiex_scan_networks(priv, user_scan_cfg); 2707 kfree(user_scan_cfg); 2708 if (ret) { 2709 mwifiex_dbg(priv->adapter, ERROR, 2710 "scan failed: %d\n", ret); 2711 priv->scan_aborting = false; 2712 priv->scan_request = NULL; 2713 return ret; 2714 } 2715 2716 if (request->ie && request->ie_len) { 2717 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2718 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) { 2719 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR; 2720 memset(&priv->vs_ie[i].ie, 0, 2721 MWIFIEX_MAX_VSIE_LEN); 2722 } 2723 } 2724 } 2725 return 0; 2726 } 2727 2728 /* CFG802.11 operation handler for sched_scan_start. 2729 * 2730 * This function issues a bgscan config request to the firmware based upon 2731 * the user specified sched_scan configuration. On successful completion, 2732 * firmware will generate BGSCAN_REPORT event, driver should issue bgscan 2733 * query command to get sched_scan results from firmware. 2734 */ 2735 static int 2736 mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy, 2737 struct net_device *dev, 2738 struct cfg80211_sched_scan_request *request) 2739 { 2740 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2741 int i, offset; 2742 struct ieee80211_channel *chan; 2743 struct mwifiex_bg_scan_cfg *bgscan_cfg; 2744 struct ieee_types_header *ie; 2745 2746 if (!request || (!request->n_ssids && !request->n_match_sets)) { 2747 wiphy_err(wiphy, "%s : Invalid Sched_scan parameters", 2748 __func__); 2749 return -EINVAL; 2750 } 2751 2752 wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ", 2753 request->n_ssids, request->n_match_sets); 2754 wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n", 2755 request->n_channels, request->scan_plans->interval, 2756 (int)request->ie_len); 2757 2758 bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL); 2759 if (!bgscan_cfg) 2760 return -ENOMEM; 2761 2762 if (priv->scan_request || priv->scan_aborting) 2763 bgscan_cfg->start_later = true; 2764 2765 bgscan_cfg->num_ssids = request->n_match_sets; 2766 bgscan_cfg->ssid_list = request->match_sets; 2767 2768 if (request->ie && request->ie_len) { 2769 offset = 0; 2770 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2771 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR) 2772 continue; 2773 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN; 2774 ie = (struct ieee_types_header *)(request->ie + offset); 2775 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len); 2776 offset += sizeof(*ie) + ie->len; 2777 2778 if (offset >= request->ie_len) 2779 break; 2780 } 2781 } 2782 2783 for (i = 0; i < min_t(u32, request->n_channels, 2784 MWIFIEX_BG_SCAN_CHAN_MAX); i++) { 2785 chan = request->channels[i]; 2786 bgscan_cfg->chan_list[i].chan_number = chan->hw_value; 2787 bgscan_cfg->chan_list[i].radio_type = chan->band; 2788 2789 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids) 2790 bgscan_cfg->chan_list[i].scan_type = 2791 MWIFIEX_SCAN_TYPE_PASSIVE; 2792 else 2793 bgscan_cfg->chan_list[i].scan_type = 2794 MWIFIEX_SCAN_TYPE_ACTIVE; 2795 2796 bgscan_cfg->chan_list[i].scan_time = 0; 2797 } 2798 2799 bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels, 2800 MWIFIEX_BG_SCAN_CHAN_MAX); 2801 2802 /* Use at least 15 second for per scan cycle */ 2803 bgscan_cfg->scan_interval = (request->scan_plans->interval > 2804 MWIFIEX_BGSCAN_INTERVAL) ? 2805 request->scan_plans->interval : 2806 MWIFIEX_BGSCAN_INTERVAL; 2807 2808 bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT; 2809 bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH | 2810 MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE; 2811 bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA; 2812 bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET; 2813 bgscan_cfg->enable = true; 2814 if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) { 2815 bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH; 2816 bgscan_cfg->rssi_threshold = request->min_rssi_thold; 2817 } 2818 2819 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG, 2820 HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) { 2821 kfree(bgscan_cfg); 2822 return -EFAULT; 2823 } 2824 2825 priv->sched_scanning = true; 2826 2827 kfree(bgscan_cfg); 2828 return 0; 2829 } 2830 2831 /* CFG802.11 operation handler for sched_scan_stop. 2832 * 2833 * This function issues a bgscan config command to disable 2834 * previous bgscan configuration in the firmware 2835 */ 2836 static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy, 2837 struct net_device *dev, u64 reqid) 2838 { 2839 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2840 2841 wiphy_info(wiphy, "sched scan stop!"); 2842 mwifiex_stop_bg_scan(priv); 2843 2844 return 0; 2845 } 2846 2847 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info, 2848 struct mwifiex_private *priv) 2849 { 2850 struct mwifiex_adapter *adapter = priv->adapter; 2851 2852 vht_info->vht_supported = true; 2853 2854 vht_info->cap = adapter->hw_dot_11ac_dev_cap; 2855 /* Update MCS support for VHT */ 2856 vht_info->vht_mcs.rx_mcs_map = cpu_to_le16( 2857 adapter->hw_dot_11ac_mcs_support & 0xFFFF); 2858 vht_info->vht_mcs.rx_highest = 0; 2859 vht_info->vht_mcs.tx_mcs_map = cpu_to_le16( 2860 adapter->hw_dot_11ac_mcs_support >> 16); 2861 vht_info->vht_mcs.tx_highest = 0; 2862 } 2863 2864 /* 2865 * This function sets up the CFG802.11 specific HT capability fields 2866 * with default values. 2867 * 2868 * The following default values are set - 2869 * - HT Supported = True 2870 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K 2871 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE 2872 * - HT Capabilities supported by firmware 2873 * - MCS information, Rx mask = 0xff 2874 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01) 2875 */ 2876 static void 2877 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info, 2878 struct mwifiex_private *priv) 2879 { 2880 int rx_mcs_supp; 2881 struct ieee80211_mcs_info mcs_set; 2882 u8 *mcs = (u8 *)&mcs_set; 2883 struct mwifiex_adapter *adapter = priv->adapter; 2884 2885 ht_info->ht_supported = true; 2886 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; 2887 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; 2888 2889 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); 2890 2891 /* Fill HT capability information */ 2892 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) 2893 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 2894 else 2895 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 2896 2897 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap)) 2898 ht_info->cap |= IEEE80211_HT_CAP_SGI_20; 2899 else 2900 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20; 2901 2902 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap)) 2903 ht_info->cap |= IEEE80211_HT_CAP_SGI_40; 2904 else 2905 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40; 2906 2907 if (adapter->user_dev_mcs_support == HT_STREAM_2X2) 2908 ht_info->cap |= 2 << IEEE80211_HT_CAP_RX_STBC_SHIFT; 2909 else 2910 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT; 2911 2912 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap)) 2913 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC; 2914 else 2915 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC; 2916 2917 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap)) 2918 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD; 2919 else 2920 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD; 2921 2922 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap)) 2923 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT; 2924 else 2925 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT; 2926 2927 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap)) 2928 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING; 2929 else 2930 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING; 2931 2932 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU; 2933 ht_info->cap |= IEEE80211_HT_CAP_SM_PS; 2934 2935 rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support); 2936 /* Set MCS for 1x1/2x2 */ 2937 memset(mcs, 0xff, rx_mcs_supp); 2938 /* Clear all the other values */ 2939 memset(&mcs[rx_mcs_supp], 0, 2940 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp); 2941 if (priv->bss_mode == NL80211_IFTYPE_STATION || 2942 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) 2943 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */ 2944 SETHT_MCS32(mcs_set.rx_mask); 2945 2946 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info)); 2947 2948 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; 2949 } 2950 2951 /* 2952 * create a new virtual interface with the given name and name assign type 2953 */ 2954 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy, 2955 const char *name, 2956 unsigned char name_assign_type, 2957 enum nl80211_iftype type, 2958 struct vif_params *params) 2959 { 2960 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 2961 struct mwifiex_private *priv; 2962 struct net_device *dev; 2963 void *mdev_priv; 2964 int ret; 2965 2966 if (!adapter) 2967 return ERR_PTR(-EFAULT); 2968 2969 switch (type) { 2970 case NL80211_IFTYPE_UNSPECIFIED: 2971 case NL80211_IFTYPE_STATION: 2972 case NL80211_IFTYPE_ADHOC: 2973 if (adapter->curr_iface_comb.sta_intf == 2974 adapter->iface_limit.sta_intf) { 2975 mwifiex_dbg(adapter, ERROR, 2976 "cannot create multiple sta/adhoc ifaces\n"); 2977 return ERR_PTR(-EINVAL); 2978 } 2979 2980 priv = mwifiex_get_unused_priv_by_bss_type( 2981 adapter, MWIFIEX_BSS_TYPE_STA); 2982 if (!priv) { 2983 mwifiex_dbg(adapter, ERROR, 2984 "could not get free private struct\n"); 2985 return ERR_PTR(-EFAULT); 2986 } 2987 2988 priv->wdev.wiphy = wiphy; 2989 priv->wdev.iftype = NL80211_IFTYPE_STATION; 2990 2991 if (type == NL80211_IFTYPE_UNSPECIFIED) 2992 priv->bss_mode = NL80211_IFTYPE_STATION; 2993 else 2994 priv->bss_mode = type; 2995 2996 priv->bss_type = MWIFIEX_BSS_TYPE_STA; 2997 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 2998 priv->bss_priority = 0; 2999 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 3000 3001 break; 3002 case NL80211_IFTYPE_AP: 3003 if (adapter->curr_iface_comb.uap_intf == 3004 adapter->iface_limit.uap_intf) { 3005 mwifiex_dbg(adapter, ERROR, 3006 "cannot create multiple AP ifaces\n"); 3007 return ERR_PTR(-EINVAL); 3008 } 3009 3010 priv = mwifiex_get_unused_priv_by_bss_type( 3011 adapter, MWIFIEX_BSS_TYPE_UAP); 3012 if (!priv) { 3013 mwifiex_dbg(adapter, ERROR, 3014 "could not get free private struct\n"); 3015 return ERR_PTR(-EFAULT); 3016 } 3017 3018 priv->wdev.wiphy = wiphy; 3019 priv->wdev.iftype = NL80211_IFTYPE_AP; 3020 3021 priv->bss_type = MWIFIEX_BSS_TYPE_UAP; 3022 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 3023 priv->bss_priority = 0; 3024 priv->bss_role = MWIFIEX_BSS_ROLE_UAP; 3025 priv->bss_started = 0; 3026 priv->bss_mode = type; 3027 3028 break; 3029 case NL80211_IFTYPE_P2P_CLIENT: 3030 if (adapter->curr_iface_comb.p2p_intf == 3031 adapter->iface_limit.p2p_intf) { 3032 mwifiex_dbg(adapter, ERROR, 3033 "cannot create multiple P2P ifaces\n"); 3034 return ERR_PTR(-EINVAL); 3035 } 3036 3037 priv = mwifiex_get_unused_priv_by_bss_type( 3038 adapter, MWIFIEX_BSS_TYPE_P2P); 3039 if (!priv) { 3040 mwifiex_dbg(adapter, ERROR, 3041 "could not get free private struct\n"); 3042 return ERR_PTR(-EFAULT); 3043 } 3044 3045 priv->wdev.wiphy = wiphy; 3046 /* At start-up, wpa_supplicant tries to change the interface 3047 * to NL80211_IFTYPE_STATION if it is not managed mode. 3048 */ 3049 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT; 3050 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT; 3051 3052 /* Setting bss_type to P2P tells firmware that this interface 3053 * is receiving P2P peers found during find phase and doing 3054 * action frame handshake. 3055 */ 3056 priv->bss_type = MWIFIEX_BSS_TYPE_P2P; 3057 3058 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 3059 priv->bss_priority = 0; 3060 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 3061 priv->bss_started = 0; 3062 3063 if (mwifiex_cfg80211_init_p2p_client(priv)) { 3064 memset(&priv->wdev, 0, sizeof(priv->wdev)); 3065 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 3066 return ERR_PTR(-EFAULT); 3067 } 3068 3069 break; 3070 default: 3071 mwifiex_dbg(adapter, ERROR, "type not supported\n"); 3072 return ERR_PTR(-EINVAL); 3073 } 3074 3075 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name, 3076 name_assign_type, ether_setup, 3077 IEEE80211_NUM_ACS, 1); 3078 if (!dev) { 3079 mwifiex_dbg(adapter, ERROR, 3080 "no memory available for netdevice\n"); 3081 ret = -ENOMEM; 3082 goto err_alloc_netdev; 3083 } 3084 3085 mwifiex_init_priv_params(priv, dev); 3086 3087 priv->netdev = dev; 3088 3089 if (!adapter->mfg_mode) { 3090 mwifiex_set_mac_address(priv, dev, false, NULL); 3091 3092 ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 3093 HostCmd_ACT_GEN_SET, 0, NULL, true); 3094 if (ret) 3095 goto err_set_bss_mode; 3096 3097 ret = mwifiex_sta_init_cmd(priv, false, false); 3098 if (ret) 3099 goto err_sta_init; 3100 } 3101 3102 mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv); 3103 if (adapter->is_hw_11ac_capable) 3104 mwifiex_setup_vht_caps( 3105 &wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv); 3106 3107 if (adapter->config_bands & BAND_A) 3108 mwifiex_setup_ht_caps( 3109 &wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv); 3110 3111 if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable) 3112 mwifiex_setup_vht_caps( 3113 &wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv); 3114 3115 dev_net_set(dev, wiphy_net(wiphy)); 3116 dev->ieee80211_ptr = &priv->wdev; 3117 dev->ieee80211_ptr->iftype = priv->bss_mode; 3118 SET_NETDEV_DEV(dev, wiphy_dev(wiphy)); 3119 3120 dev->flags |= IFF_BROADCAST | IFF_MULTICAST; 3121 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT; 3122 dev->needed_headroom = MWIFIEX_MIN_DATA_HEADER_LEN; 3123 dev->ethtool_ops = &mwifiex_ethtool_ops; 3124 3125 mdev_priv = netdev_priv(dev); 3126 *((unsigned long *) mdev_priv) = (unsigned long) priv; 3127 3128 SET_NETDEV_DEV(dev, adapter->dev); 3129 3130 priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s", 3131 WQ_HIGHPRI | 3132 WQ_MEM_RECLAIM | 3133 WQ_UNBOUND, 0, name); 3134 if (!priv->dfs_cac_workqueue) { 3135 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS CAC queue\n"); 3136 ret = -ENOMEM; 3137 goto err_alloc_cac; 3138 } 3139 3140 INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue); 3141 3142 priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s", 3143 WQ_HIGHPRI | WQ_UNBOUND | 3144 WQ_MEM_RECLAIM, 0, name); 3145 if (!priv->dfs_chan_sw_workqueue) { 3146 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS channel sw queue\n"); 3147 ret = -ENOMEM; 3148 goto err_alloc_chsw; 3149 } 3150 3151 INIT_DELAYED_WORK(&priv->dfs_chan_sw_work, 3152 mwifiex_dfs_chan_sw_work_queue); 3153 3154 mutex_init(&priv->async_mutex); 3155 3156 /* Register network device */ 3157 if (cfg80211_register_netdevice(dev)) { 3158 mwifiex_dbg(adapter, ERROR, "cannot register network device\n"); 3159 ret = -EFAULT; 3160 goto err_reg_netdev; 3161 } 3162 3163 mwifiex_dbg(adapter, INFO, 3164 "info: %s: Marvell 802.11 Adapter\n", dev->name); 3165 3166 #ifdef CONFIG_DEBUG_FS 3167 mwifiex_dev_debugfs_init(priv); 3168 #endif 3169 3170 update_vif_type_counter(adapter, type, +1); 3171 3172 return &priv->wdev; 3173 3174 err_reg_netdev: 3175 destroy_workqueue(priv->dfs_chan_sw_workqueue); 3176 priv->dfs_chan_sw_workqueue = NULL; 3177 err_alloc_chsw: 3178 destroy_workqueue(priv->dfs_cac_workqueue); 3179 priv->dfs_cac_workqueue = NULL; 3180 err_alloc_cac: 3181 free_netdev(dev); 3182 priv->netdev = NULL; 3183 err_sta_init: 3184 err_set_bss_mode: 3185 err_alloc_netdev: 3186 memset(&priv->wdev, 0, sizeof(priv->wdev)); 3187 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 3188 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; 3189 return ERR_PTR(ret); 3190 } 3191 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf); 3192 3193 /* 3194 * del_virtual_intf: remove the virtual interface determined by dev 3195 */ 3196 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) 3197 { 3198 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 3199 struct mwifiex_adapter *adapter = priv->adapter; 3200 struct sk_buff *skb, *tmp; 3201 3202 #ifdef CONFIG_DEBUG_FS 3203 mwifiex_dev_debugfs_remove(priv); 3204 #endif 3205 3206 if (priv->sched_scanning) 3207 priv->sched_scanning = false; 3208 3209 mwifiex_stop_net_dev_queue(priv->netdev, adapter); 3210 3211 skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) { 3212 skb_unlink(skb, &priv->bypass_txq); 3213 mwifiex_write_data_complete(priv->adapter, skb, 0, -1); 3214 } 3215 3216 if (netif_carrier_ok(priv->netdev)) 3217 netif_carrier_off(priv->netdev); 3218 3219 if (wdev->netdev->reg_state == NETREG_REGISTERED) 3220 cfg80211_unregister_netdevice(wdev->netdev); 3221 3222 if (priv->dfs_cac_workqueue) { 3223 destroy_workqueue(priv->dfs_cac_workqueue); 3224 priv->dfs_cac_workqueue = NULL; 3225 } 3226 3227 if (priv->dfs_chan_sw_workqueue) { 3228 destroy_workqueue(priv->dfs_chan_sw_workqueue); 3229 priv->dfs_chan_sw_workqueue = NULL; 3230 } 3231 /* Clear the priv in adapter */ 3232 priv->netdev = NULL; 3233 3234 update_vif_type_counter(adapter, priv->bss_mode, -1); 3235 3236 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; 3237 3238 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA || 3239 GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) 3240 kfree(priv->hist_data); 3241 3242 return 0; 3243 } 3244 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf); 3245 3246 static bool 3247 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq, 3248 u8 max_byte_seq) 3249 { 3250 int j, k, valid_byte_cnt = 0; 3251 bool dont_care_byte = false; 3252 3253 for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) { 3254 for (k = 0; k < 8; k++) { 3255 if (pat->mask[j] & 1 << k) { 3256 memcpy(byte_seq + valid_byte_cnt, 3257 &pat->pattern[j * 8 + k], 1); 3258 valid_byte_cnt++; 3259 if (dont_care_byte) 3260 return false; 3261 } else { 3262 if (valid_byte_cnt) 3263 dont_care_byte = true; 3264 } 3265 3266 /* wildcard bytes record as the offset 3267 * before the valid byte 3268 */ 3269 if (!valid_byte_cnt && !dont_care_byte) 3270 pat->pkt_offset++; 3271 3272 if (valid_byte_cnt > max_byte_seq) 3273 return false; 3274 } 3275 } 3276 3277 byte_seq[max_byte_seq] = valid_byte_cnt; 3278 3279 return true; 3280 } 3281 3282 #ifdef CONFIG_PM 3283 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv, 3284 struct mwifiex_mef_entry *mef_entry) 3285 { 3286 int i, filt_num = 0, num_ipv4 = 0; 3287 struct in_device *in_dev; 3288 struct in_ifaddr *ifa; 3289 __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR]; 3290 struct mwifiex_adapter *adapter = priv->adapter; 3291 3292 mef_entry->mode = MEF_MODE_HOST_SLEEP; 3293 mef_entry->action = MEF_ACTION_AUTO_ARP; 3294 3295 /* Enable ARP offload feature */ 3296 memset(ips, 0, sizeof(ips)); 3297 for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) { 3298 if (adapter->priv[i]->netdev) { 3299 in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev); 3300 if (!in_dev) 3301 continue; 3302 ifa = rtnl_dereference(in_dev->ifa_list); 3303 if (!ifa || !ifa->ifa_local) 3304 continue; 3305 ips[i] = ifa->ifa_local; 3306 num_ipv4++; 3307 } 3308 } 3309 3310 for (i = 0; i < num_ipv4; i++) { 3311 if (!ips[i]) 3312 continue; 3313 mef_entry->filter[filt_num].repeat = 1; 3314 memcpy(mef_entry->filter[filt_num].byte_seq, 3315 (u8 *)&ips[i], sizeof(ips[i])); 3316 mef_entry->filter[filt_num]. 3317 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3318 sizeof(ips[i]); 3319 mef_entry->filter[filt_num].offset = 46; 3320 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3321 if (filt_num) { 3322 mef_entry->filter[filt_num].filt_action = 3323 TYPE_OR; 3324 } 3325 filt_num++; 3326 } 3327 3328 mef_entry->filter[filt_num].repeat = 1; 3329 mef_entry->filter[filt_num].byte_seq[0] = 0x08; 3330 mef_entry->filter[filt_num].byte_seq[1] = 0x06; 3331 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2; 3332 mef_entry->filter[filt_num].offset = 20; 3333 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3334 mef_entry->filter[filt_num].filt_action = TYPE_AND; 3335 } 3336 3337 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv, 3338 struct mwifiex_ds_mef_cfg *mef_cfg, 3339 struct mwifiex_mef_entry *mef_entry, 3340 struct cfg80211_wowlan *wowlan) 3341 { 3342 int i, filt_num = 0, ret = 0; 3343 bool first_pat = true; 3344 u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1]; 3345 static const u8 ipv4_mc_mac[] = {0x33, 0x33}; 3346 static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e}; 3347 3348 mef_entry->mode = MEF_MODE_HOST_SLEEP; 3349 mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST; 3350 3351 for (i = 0; i < wowlan->n_patterns; i++) { 3352 memset(byte_seq, 0, sizeof(byte_seq)); 3353 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i], 3354 byte_seq, 3355 MWIFIEX_MEF_MAX_BYTESEQ)) { 3356 mwifiex_dbg(priv->adapter, ERROR, 3357 "Pattern not supported\n"); 3358 return -EOPNOTSUPP; 3359 } 3360 3361 if (!wowlan->patterns[i].pkt_offset) { 3362 if (is_unicast_ether_addr(byte_seq) && 3363 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) { 3364 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST; 3365 continue; 3366 } else if (is_broadcast_ether_addr(byte_seq)) { 3367 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST; 3368 continue; 3369 } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) && 3370 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) || 3371 (!memcmp(byte_seq, ipv6_mc_mac, 3) && 3372 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) { 3373 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST; 3374 continue; 3375 } 3376 } 3377 mef_entry->filter[filt_num].repeat = 1; 3378 mef_entry->filter[filt_num].offset = 3379 wowlan->patterns[i].pkt_offset; 3380 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq, 3381 sizeof(byte_seq)); 3382 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3383 3384 if (first_pat) { 3385 first_pat = false; 3386 mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n"); 3387 } else { 3388 mef_entry->filter[filt_num].filt_action = TYPE_AND; 3389 } 3390 3391 filt_num++; 3392 } 3393 3394 if (wowlan->magic_pkt) { 3395 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST; 3396 mef_entry->filter[filt_num].repeat = 16; 3397 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr, 3398 ETH_ALEN); 3399 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3400 ETH_ALEN; 3401 mef_entry->filter[filt_num].offset = 28; 3402 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3403 if (filt_num) 3404 mef_entry->filter[filt_num].filt_action = TYPE_OR; 3405 3406 filt_num++; 3407 mef_entry->filter[filt_num].repeat = 16; 3408 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr, 3409 ETH_ALEN); 3410 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3411 ETH_ALEN; 3412 mef_entry->filter[filt_num].offset = 56; 3413 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3414 mef_entry->filter[filt_num].filt_action = TYPE_OR; 3415 mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n"); 3416 } 3417 return ret; 3418 } 3419 3420 static int mwifiex_set_mef_filter(struct mwifiex_private *priv, 3421 struct cfg80211_wowlan *wowlan) 3422 { 3423 int ret = 0, num_entries = 1; 3424 struct mwifiex_ds_mef_cfg mef_cfg; 3425 struct mwifiex_mef_entry *mef_entry; 3426 3427 if (wowlan->n_patterns || wowlan->magic_pkt) 3428 num_entries++; 3429 3430 mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL); 3431 if (!mef_entry) 3432 return -ENOMEM; 3433 3434 memset(&mef_cfg, 0, sizeof(mef_cfg)); 3435 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST | 3436 MWIFIEX_CRITERIA_UNICAST; 3437 mef_cfg.num_entries = num_entries; 3438 mef_cfg.mef_entry = mef_entry; 3439 3440 mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]); 3441 3442 if (wowlan->n_patterns || wowlan->magic_pkt) { 3443 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg, 3444 &mef_entry[1], wowlan); 3445 if (ret) 3446 goto err; 3447 } 3448 3449 if (!mef_cfg.criteria) 3450 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST | 3451 MWIFIEX_CRITERIA_UNICAST | 3452 MWIFIEX_CRITERIA_MULTICAST; 3453 3454 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG, 3455 HostCmd_ACT_GEN_SET, 0, 3456 &mef_cfg, true); 3457 3458 err: 3459 kfree(mef_entry); 3460 return ret; 3461 } 3462 3463 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy, 3464 struct cfg80211_wowlan *wowlan) 3465 { 3466 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3467 struct mwifiex_ds_hs_cfg hs_cfg; 3468 int i, ret = 0, retry_num = 10; 3469 struct mwifiex_private *priv; 3470 struct mwifiex_private *sta_priv = 3471 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3472 3473 sta_priv->scan_aborting = true; 3474 for (i = 0; i < adapter->priv_num; i++) { 3475 priv = adapter->priv[i]; 3476 mwifiex_abort_cac(priv); 3477 } 3478 3479 mwifiex_cancel_all_pending_cmd(adapter); 3480 3481 for (i = 0; i < adapter->priv_num; i++) { 3482 priv = adapter->priv[i]; 3483 if (priv && priv->netdev) 3484 netif_device_detach(priv->netdev); 3485 } 3486 3487 for (i = 0; i < retry_num; i++) { 3488 if (!mwifiex_wmm_lists_empty(adapter) || 3489 !mwifiex_bypass_txlist_empty(adapter) || 3490 !skb_queue_empty(&adapter->tx_data_q)) 3491 usleep_range(10000, 15000); 3492 else 3493 break; 3494 } 3495 3496 if (!wowlan) { 3497 mwifiex_dbg(adapter, INFO, 3498 "None of the WOWLAN triggers enabled\n"); 3499 ret = 0; 3500 goto done; 3501 } 3502 3503 if (!sta_priv->media_connected && !wowlan->nd_config) { 3504 mwifiex_dbg(adapter, ERROR, 3505 "Can not configure WOWLAN in disconnected state\n"); 3506 ret = 0; 3507 goto done; 3508 } 3509 3510 ret = mwifiex_set_mef_filter(sta_priv, wowlan); 3511 if (ret) { 3512 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n"); 3513 goto done; 3514 } 3515 3516 memset(&hs_cfg, 0, sizeof(hs_cfg)); 3517 hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions); 3518 3519 if (wowlan->nd_config) { 3520 mwifiex_dbg(adapter, INFO, "Wake on net detect\n"); 3521 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT; 3522 mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev, 3523 wowlan->nd_config); 3524 } 3525 3526 if (wowlan->disconnect) { 3527 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT; 3528 mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n"); 3529 } 3530 3531 hs_cfg.is_invoke_hostcmd = false; 3532 hs_cfg.gpio = adapter->hs_cfg.gpio; 3533 hs_cfg.gap = adapter->hs_cfg.gap; 3534 ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET, 3535 MWIFIEX_SYNC_CMD, &hs_cfg); 3536 if (ret) 3537 mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n"); 3538 3539 done: 3540 sta_priv->scan_aborting = false; 3541 return ret; 3542 } 3543 3544 static int mwifiex_cfg80211_resume(struct wiphy *wiphy) 3545 { 3546 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3547 struct mwifiex_private *priv; 3548 struct mwifiex_ds_wakeup_reason wakeup_reason; 3549 struct cfg80211_wowlan_wakeup wakeup_report; 3550 int i; 3551 bool report_wakeup_reason = true; 3552 3553 for (i = 0; i < adapter->priv_num; i++) { 3554 priv = adapter->priv[i]; 3555 if (priv && priv->netdev) 3556 netif_device_attach(priv->netdev); 3557 } 3558 3559 if (!wiphy->wowlan_config) 3560 goto done; 3561 3562 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3563 mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD, 3564 &wakeup_reason); 3565 memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup)); 3566 3567 wakeup_report.pattern_idx = -1; 3568 3569 switch (wakeup_reason.hs_wakeup_reason) { 3570 case NO_HSWAKEUP_REASON: 3571 break; 3572 case BCAST_DATA_MATCHED: 3573 break; 3574 case MCAST_DATA_MATCHED: 3575 break; 3576 case UCAST_DATA_MATCHED: 3577 break; 3578 case MASKTABLE_EVENT_MATCHED: 3579 break; 3580 case NON_MASKABLE_EVENT_MATCHED: 3581 if (wiphy->wowlan_config->disconnect) 3582 wakeup_report.disconnect = true; 3583 if (wiphy->wowlan_config->nd_config) 3584 wakeup_report.net_detect = adapter->nd_info; 3585 break; 3586 case NON_MASKABLE_CONDITION_MATCHED: 3587 break; 3588 case MAGIC_PATTERN_MATCHED: 3589 if (wiphy->wowlan_config->magic_pkt) 3590 wakeup_report.magic_pkt = true; 3591 if (wiphy->wowlan_config->n_patterns) 3592 wakeup_report.pattern_idx = 1; 3593 break; 3594 case GTK_REKEY_FAILURE: 3595 if (wiphy->wowlan_config->gtk_rekey_failure) 3596 wakeup_report.gtk_rekey_failure = true; 3597 break; 3598 default: 3599 report_wakeup_reason = false; 3600 break; 3601 } 3602 3603 if (report_wakeup_reason) 3604 cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report, 3605 GFP_KERNEL); 3606 3607 done: 3608 if (adapter->nd_info) { 3609 for (i = 0 ; i < adapter->nd_info->n_matches ; i++) 3610 kfree(adapter->nd_info->matches[i]); 3611 kfree(adapter->nd_info); 3612 adapter->nd_info = NULL; 3613 } 3614 3615 return 0; 3616 } 3617 3618 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy, 3619 bool enabled) 3620 { 3621 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3622 3623 device_set_wakeup_enable(adapter->dev, enabled); 3624 } 3625 3626 static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev, 3627 struct cfg80211_gtk_rekey_data *data) 3628 { 3629 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3630 3631 if (!ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info)) 3632 return -EOPNOTSUPP; 3633 3634 return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG, 3635 HostCmd_ACT_GEN_SET, 0, data, true); 3636 } 3637 3638 #endif 3639 3640 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq) 3641 { 3642 static const u8 ipv4_mc_mac[] = {0x33, 0x33}; 3643 static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e}; 3644 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff}; 3645 3646 if ((byte_seq[0] & 0x01) && 3647 (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1)) 3648 return PACKET_TYPE_UNICAST; 3649 else if (!memcmp(byte_seq, bc_mac, 4)) 3650 return PACKET_TYPE_BROADCAST; 3651 else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) && 3652 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) || 3653 (!memcmp(byte_seq, ipv6_mc_mac, 3) && 3654 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3)) 3655 return PACKET_TYPE_MULTICAST; 3656 3657 return 0; 3658 } 3659 3660 static int 3661 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv, 3662 struct cfg80211_coalesce_rules *crule, 3663 struct mwifiex_coalesce_rule *mrule) 3664 { 3665 u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1]; 3666 struct filt_field_param *param; 3667 int i; 3668 3669 mrule->max_coalescing_delay = crule->delay; 3670 3671 param = mrule->params; 3672 3673 for (i = 0; i < crule->n_patterns; i++) { 3674 memset(byte_seq, 0, sizeof(byte_seq)); 3675 if (!mwifiex_is_pattern_supported(&crule->patterns[i], 3676 byte_seq, 3677 MWIFIEX_COALESCE_MAX_BYTESEQ)) { 3678 mwifiex_dbg(priv->adapter, ERROR, 3679 "Pattern not supported\n"); 3680 return -EOPNOTSUPP; 3681 } 3682 3683 if (!crule->patterns[i].pkt_offset) { 3684 u8 pkt_type; 3685 3686 pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq); 3687 if (pkt_type && mrule->pkt_type) { 3688 mwifiex_dbg(priv->adapter, ERROR, 3689 "Multiple packet types not allowed\n"); 3690 return -EOPNOTSUPP; 3691 } else if (pkt_type) { 3692 mrule->pkt_type = pkt_type; 3693 continue; 3694 } 3695 } 3696 3697 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH) 3698 param->operation = RECV_FILTER_MATCH_TYPE_EQ; 3699 else 3700 param->operation = RECV_FILTER_MATCH_TYPE_NE; 3701 3702 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ]; 3703 memcpy(param->operand_byte_stream, byte_seq, 3704 param->operand_len); 3705 param->offset = crule->patterns[i].pkt_offset; 3706 param++; 3707 3708 mrule->num_of_fields++; 3709 } 3710 3711 if (!mrule->pkt_type) { 3712 mwifiex_dbg(priv->adapter, ERROR, 3713 "Packet type can not be determined\n"); 3714 return -EOPNOTSUPP; 3715 } 3716 3717 return 0; 3718 } 3719 3720 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy, 3721 struct cfg80211_coalesce *coalesce) 3722 { 3723 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3724 int i, ret; 3725 struct mwifiex_ds_coalesce_cfg coalesce_cfg; 3726 struct mwifiex_private *priv = 3727 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3728 3729 memset(&coalesce_cfg, 0, sizeof(coalesce_cfg)); 3730 if (!coalesce) { 3731 mwifiex_dbg(adapter, WARN, 3732 "Disable coalesce and reset all previous rules\n"); 3733 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG, 3734 HostCmd_ACT_GEN_SET, 0, 3735 &coalesce_cfg, true); 3736 } 3737 3738 coalesce_cfg.num_of_rules = coalesce->n_rules; 3739 for (i = 0; i < coalesce->n_rules; i++) { 3740 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i], 3741 &coalesce_cfg.rule[i]); 3742 if (ret) { 3743 mwifiex_dbg(adapter, ERROR, 3744 "Recheck the patterns provided for rule %d\n", 3745 i + 1); 3746 return ret; 3747 } 3748 } 3749 3750 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG, 3751 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true); 3752 } 3753 3754 /* cfg80211 ops handler for tdls_mgmt. 3755 * Function prepares TDLS action frame packets and forwards them to FW 3756 */ 3757 static int 3758 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 3759 const u8 *peer, int link_id, u8 action_code, 3760 u8 dialog_token, u16 status_code, 3761 u32 peer_capability, bool initiator, 3762 const u8 *extra_ies, size_t extra_ies_len) 3763 { 3764 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3765 int ret; 3766 3767 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) 3768 return -EOPNOTSUPP; 3769 3770 /* make sure we are in station mode and connected */ 3771 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected)) 3772 return -EOPNOTSUPP; 3773 3774 switch (action_code) { 3775 case WLAN_TDLS_SETUP_REQUEST: 3776 mwifiex_dbg(priv->adapter, MSG, 3777 "Send TDLS Setup Request to %pM status_code=%d\n", 3778 peer, status_code); 3779 mwifiex_add_auto_tdls_peer(priv, peer); 3780 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3781 dialog_token, status_code, 3782 extra_ies, extra_ies_len); 3783 break; 3784 case WLAN_TDLS_SETUP_RESPONSE: 3785 mwifiex_add_auto_tdls_peer(priv, peer); 3786 mwifiex_dbg(priv->adapter, MSG, 3787 "Send TDLS Setup Response to %pM status_code=%d\n", 3788 peer, status_code); 3789 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3790 dialog_token, status_code, 3791 extra_ies, extra_ies_len); 3792 break; 3793 case WLAN_TDLS_SETUP_CONFIRM: 3794 mwifiex_dbg(priv->adapter, MSG, 3795 "Send TDLS Confirm to %pM status_code=%d\n", peer, 3796 status_code); 3797 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3798 dialog_token, status_code, 3799 extra_ies, extra_ies_len); 3800 break; 3801 case WLAN_TDLS_TEARDOWN: 3802 mwifiex_dbg(priv->adapter, MSG, 3803 "Send TDLS Tear down to %pM\n", peer); 3804 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3805 dialog_token, status_code, 3806 extra_ies, extra_ies_len); 3807 break; 3808 case WLAN_TDLS_DISCOVERY_REQUEST: 3809 mwifiex_dbg(priv->adapter, MSG, 3810 "Send TDLS Discovery Request to %pM\n", peer); 3811 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3812 dialog_token, status_code, 3813 extra_ies, extra_ies_len); 3814 break; 3815 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: 3816 mwifiex_dbg(priv->adapter, MSG, 3817 "Send TDLS Discovery Response to %pM\n", peer); 3818 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code, 3819 dialog_token, status_code, 3820 extra_ies, extra_ies_len); 3821 break; 3822 default: 3823 mwifiex_dbg(priv->adapter, ERROR, 3824 "Unknown TDLS mgmt/action frame %pM\n", peer); 3825 ret = -EINVAL; 3826 break; 3827 } 3828 3829 return ret; 3830 } 3831 3832 static int 3833 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 3834 const u8 *peer, enum nl80211_tdls_operation action) 3835 { 3836 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3837 3838 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) || 3839 !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)) 3840 return -EOPNOTSUPP; 3841 3842 /* make sure we are in station mode and connected */ 3843 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected)) 3844 return -EOPNOTSUPP; 3845 3846 mwifiex_dbg(priv->adapter, MSG, 3847 "TDLS peer=%pM, oper=%d\n", peer, action); 3848 3849 switch (action) { 3850 case NL80211_TDLS_ENABLE_LINK: 3851 action = MWIFIEX_TDLS_ENABLE_LINK; 3852 break; 3853 case NL80211_TDLS_DISABLE_LINK: 3854 action = MWIFIEX_TDLS_DISABLE_LINK; 3855 break; 3856 case NL80211_TDLS_TEARDOWN: 3857 /* shouldn't happen!*/ 3858 mwifiex_dbg(priv->adapter, ERROR, 3859 "tdls_oper: teardown from driver not supported\n"); 3860 return -EINVAL; 3861 case NL80211_TDLS_SETUP: 3862 /* shouldn't happen!*/ 3863 mwifiex_dbg(priv->adapter, ERROR, 3864 "tdls_oper: setup from driver not supported\n"); 3865 return -EINVAL; 3866 case NL80211_TDLS_DISCOVERY_REQ: 3867 /* shouldn't happen!*/ 3868 mwifiex_dbg(priv->adapter, ERROR, 3869 "tdls_oper: discovery from driver not supported\n"); 3870 return -EINVAL; 3871 default: 3872 mwifiex_dbg(priv->adapter, ERROR, 3873 "tdls_oper: operation not supported\n"); 3874 return -EOPNOTSUPP; 3875 } 3876 3877 return mwifiex_tdls_oper(priv, peer, action); 3878 } 3879 3880 static int 3881 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev, 3882 const u8 *addr, u8 oper_class, 3883 struct cfg80211_chan_def *chandef) 3884 { 3885 struct mwifiex_sta_node *sta_ptr; 3886 u16 chan; 3887 u8 second_chan_offset, band; 3888 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3889 3890 spin_lock_bh(&priv->sta_list_spinlock); 3891 sta_ptr = mwifiex_get_sta_entry(priv, addr); 3892 if (!sta_ptr) { 3893 spin_unlock_bh(&priv->sta_list_spinlock); 3894 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n", 3895 __func__, addr); 3896 return -ENOENT; 3897 } 3898 3899 if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] & 3900 WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) { 3901 spin_unlock_bh(&priv->sta_list_spinlock); 3902 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr); 3903 return -ENOENT; 3904 } 3905 3906 if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING || 3907 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) { 3908 spin_unlock_bh(&priv->sta_list_spinlock); 3909 wiphy_err(wiphy, "channel switch is running, abort request\n"); 3910 return -EALREADY; 3911 } 3912 spin_unlock_bh(&priv->sta_list_spinlock); 3913 3914 chan = chandef->chan->hw_value; 3915 second_chan_offset = mwifiex_get_sec_chan_offset(chan); 3916 band = chandef->chan->band; 3917 mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band); 3918 3919 return 0; 3920 } 3921 3922 static void 3923 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy, 3924 struct net_device *dev, 3925 const u8 *addr) 3926 { 3927 struct mwifiex_sta_node *sta_ptr; 3928 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3929 3930 spin_lock_bh(&priv->sta_list_spinlock); 3931 sta_ptr = mwifiex_get_sta_entry(priv, addr); 3932 if (!sta_ptr) { 3933 spin_unlock_bh(&priv->sta_list_spinlock); 3934 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n", 3935 __func__, addr); 3936 } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING || 3937 sta_ptr->tdls_status == TDLS_IN_BASE_CHAN || 3938 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) { 3939 spin_unlock_bh(&priv->sta_list_spinlock); 3940 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n", 3941 addr); 3942 } else { 3943 spin_unlock_bh(&priv->sta_list_spinlock); 3944 mwifiex_stop_tdls_cs(priv, addr); 3945 } 3946 } 3947 3948 static int 3949 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev, 3950 const u8 *mac, struct station_parameters *params) 3951 { 3952 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3953 3954 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) 3955 return -EOPNOTSUPP; 3956 3957 /* make sure we are in station mode and connected */ 3958 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected) 3959 return -EOPNOTSUPP; 3960 3961 return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK); 3962 } 3963 3964 static int 3965 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3966 struct cfg80211_csa_settings *params) 3967 { 3968 struct ieee_types_header *chsw_ie; 3969 struct ieee80211_channel_sw_ie *channel_sw; 3970 int chsw_msec; 3971 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3972 3973 if (priv->adapter->scan_processing) { 3974 mwifiex_dbg(priv->adapter, ERROR, 3975 "radar detection: scan in process...\n"); 3976 return -EBUSY; 3977 } 3978 3979 if (priv->wdev.cac_started) 3980 return -EBUSY; 3981 3982 if (cfg80211_chandef_identical(¶ms->chandef, 3983 &priv->dfs_chandef)) 3984 return -EINVAL; 3985 3986 chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH, 3987 params->beacon_csa.tail, 3988 params->beacon_csa.tail_len); 3989 if (!chsw_ie) { 3990 mwifiex_dbg(priv->adapter, ERROR, 3991 "Could not parse channel switch announcement IE\n"); 3992 return -EINVAL; 3993 } 3994 3995 channel_sw = (void *)(chsw_ie + 1); 3996 if (channel_sw->mode) { 3997 if (netif_carrier_ok(priv->netdev)) 3998 netif_carrier_off(priv->netdev); 3999 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter); 4000 } 4001 4002 if (mwifiex_del_mgmt_ies(priv)) 4003 mwifiex_dbg(priv->adapter, ERROR, 4004 "Failed to delete mgmt IEs!\n"); 4005 4006 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon_csa)) { 4007 mwifiex_dbg(priv->adapter, ERROR, 4008 "%s: setting mgmt ies failed\n", __func__); 4009 return -EFAULT; 4010 } 4011 4012 memcpy(&priv->dfs_chandef, ¶ms->chandef, sizeof(priv->dfs_chandef)); 4013 memcpy(&priv->beacon_after, ¶ms->beacon_after, 4014 sizeof(priv->beacon_after)); 4015 4016 chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100); 4017 queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work, 4018 msecs_to_jiffies(chsw_msec)); 4019 return 0; 4020 } 4021 4022 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy, 4023 struct wireless_dev *wdev, 4024 unsigned int link_id, 4025 struct cfg80211_chan_def *chandef) 4026 { 4027 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 4028 struct mwifiex_bssdescriptor *curr_bss; 4029 struct ieee80211_channel *chan; 4030 enum nl80211_channel_type chan_type; 4031 enum nl80211_band band; 4032 int freq; 4033 int ret = -ENODATA; 4034 4035 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP && 4036 cfg80211_chandef_valid(&priv->bss_chandef)) { 4037 *chandef = priv->bss_chandef; 4038 ret = 0; 4039 } else if (priv->media_connected) { 4040 curr_bss = &priv->curr_bss_params.bss_descriptor; 4041 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 4042 freq = ieee80211_channel_to_frequency(curr_bss->channel, band); 4043 chan = ieee80211_get_channel(wiphy, freq); 4044 4045 if (priv->ht_param_present) { 4046 chan_type = mwifiex_get_chan_type(priv); 4047 cfg80211_chandef_create(chandef, chan, chan_type); 4048 } else { 4049 cfg80211_chandef_create(chandef, chan, 4050 NL80211_CHAN_NO_HT); 4051 } 4052 ret = 0; 4053 } 4054 4055 return ret; 4056 } 4057 4058 #ifdef CONFIG_NL80211_TESTMODE 4059 4060 enum mwifiex_tm_attr { 4061 __MWIFIEX_TM_ATTR_INVALID = 0, 4062 MWIFIEX_TM_ATTR_CMD = 1, 4063 MWIFIEX_TM_ATTR_DATA = 2, 4064 4065 /* keep last */ 4066 __MWIFIEX_TM_ATTR_AFTER_LAST, 4067 MWIFIEX_TM_ATTR_MAX = __MWIFIEX_TM_ATTR_AFTER_LAST - 1, 4068 }; 4069 4070 static const struct nla_policy mwifiex_tm_policy[MWIFIEX_TM_ATTR_MAX + 1] = { 4071 [MWIFIEX_TM_ATTR_CMD] = { .type = NLA_U32 }, 4072 [MWIFIEX_TM_ATTR_DATA] = { .type = NLA_BINARY, 4073 .len = MWIFIEX_SIZE_OF_CMD_BUFFER }, 4074 }; 4075 4076 enum mwifiex_tm_command { 4077 MWIFIEX_TM_CMD_HOSTCMD = 0, 4078 }; 4079 4080 static int mwifiex_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev, 4081 void *data, int len) 4082 { 4083 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 4084 struct mwifiex_ds_misc_cmd *hostcmd; 4085 struct nlattr *tb[MWIFIEX_TM_ATTR_MAX + 1]; 4086 struct sk_buff *skb; 4087 int err; 4088 4089 if (!priv) 4090 return -EINVAL; 4091 4092 err = nla_parse_deprecated(tb, MWIFIEX_TM_ATTR_MAX, data, len, 4093 mwifiex_tm_policy, NULL); 4094 if (err) 4095 return err; 4096 4097 if (!tb[MWIFIEX_TM_ATTR_CMD]) 4098 return -EINVAL; 4099 4100 switch (nla_get_u32(tb[MWIFIEX_TM_ATTR_CMD])) { 4101 case MWIFIEX_TM_CMD_HOSTCMD: 4102 if (!tb[MWIFIEX_TM_ATTR_DATA]) 4103 return -EINVAL; 4104 4105 hostcmd = kzalloc(sizeof(*hostcmd), GFP_KERNEL); 4106 if (!hostcmd) 4107 return -ENOMEM; 4108 4109 hostcmd->len = nla_len(tb[MWIFIEX_TM_ATTR_DATA]); 4110 memcpy(hostcmd->cmd, nla_data(tb[MWIFIEX_TM_ATTR_DATA]), 4111 hostcmd->len); 4112 4113 if (mwifiex_send_cmd(priv, 0, 0, 0, hostcmd, true)) { 4114 dev_err(priv->adapter->dev, "Failed to process hostcmd\n"); 4115 kfree(hostcmd); 4116 return -EFAULT; 4117 } 4118 4119 /* process hostcmd response*/ 4120 skb = cfg80211_testmode_alloc_reply_skb(wiphy, hostcmd->len); 4121 if (!skb) { 4122 kfree(hostcmd); 4123 return -ENOMEM; 4124 } 4125 err = nla_put(skb, MWIFIEX_TM_ATTR_DATA, 4126 hostcmd->len, hostcmd->cmd); 4127 if (err) { 4128 kfree(hostcmd); 4129 kfree_skb(skb); 4130 return -EMSGSIZE; 4131 } 4132 4133 err = cfg80211_testmode_reply(skb); 4134 kfree(hostcmd); 4135 return err; 4136 default: 4137 return -EOPNOTSUPP; 4138 } 4139 } 4140 #endif 4141 4142 static int 4143 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy, 4144 struct net_device *dev, 4145 struct cfg80211_chan_def *chandef, 4146 u32 cac_time_ms) 4147 { 4148 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 4149 struct mwifiex_radar_params radar_params; 4150 4151 if (priv->adapter->scan_processing) { 4152 mwifiex_dbg(priv->adapter, ERROR, 4153 "radar detection: scan already in process...\n"); 4154 return -EBUSY; 4155 } 4156 4157 if (!mwifiex_is_11h_active(priv)) { 4158 mwifiex_dbg(priv->adapter, INFO, 4159 "Enable 11h extensions in FW\n"); 4160 if (mwifiex_11h_activate(priv, true)) { 4161 mwifiex_dbg(priv->adapter, ERROR, 4162 "Failed to activate 11h extensions!!"); 4163 return -1; 4164 } 4165 priv->state_11h.is_11h_active = true; 4166 } 4167 4168 memset(&radar_params, 0, sizeof(struct mwifiex_radar_params)); 4169 radar_params.chandef = chandef; 4170 radar_params.cac_time_ms = cac_time_ms; 4171 4172 memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef)); 4173 4174 if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST, 4175 HostCmd_ACT_GEN_SET, 0, &radar_params, true)) 4176 return -1; 4177 4178 queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work, 4179 msecs_to_jiffies(cac_time_ms)); 4180 return 0; 4181 } 4182 4183 static int 4184 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev, 4185 const u8 *mac, 4186 struct station_parameters *params) 4187 { 4188 int ret; 4189 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 4190 4191 /* we support change_station handler only for TDLS peers*/ 4192 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) 4193 return -EOPNOTSUPP; 4194 4195 /* make sure we are in station mode and connected */ 4196 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected) 4197 return -EOPNOTSUPP; 4198 4199 priv->sta_params = params; 4200 4201 ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK); 4202 priv->sta_params = NULL; 4203 4204 return ret; 4205 } 4206 4207 /* station cfg80211 operations */ 4208 static struct cfg80211_ops mwifiex_cfg80211_ops = { 4209 .add_virtual_intf = mwifiex_add_virtual_intf, 4210 .del_virtual_intf = mwifiex_del_virtual_intf, 4211 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf, 4212 .scan = mwifiex_cfg80211_scan, 4213 .connect = mwifiex_cfg80211_connect, 4214 .disconnect = mwifiex_cfg80211_disconnect, 4215 .get_station = mwifiex_cfg80211_get_station, 4216 .dump_station = mwifiex_cfg80211_dump_station, 4217 .dump_survey = mwifiex_cfg80211_dump_survey, 4218 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params, 4219 .join_ibss = mwifiex_cfg80211_join_ibss, 4220 .leave_ibss = mwifiex_cfg80211_leave_ibss, 4221 .add_key = mwifiex_cfg80211_add_key, 4222 .del_key = mwifiex_cfg80211_del_key, 4223 .set_default_mgmt_key = mwifiex_cfg80211_set_default_mgmt_key, 4224 .mgmt_tx = mwifiex_cfg80211_mgmt_tx, 4225 .update_mgmt_frame_registrations = 4226 mwifiex_cfg80211_update_mgmt_frame_registrations, 4227 .remain_on_channel = mwifiex_cfg80211_remain_on_channel, 4228 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel, 4229 .set_default_key = mwifiex_cfg80211_set_default_key, 4230 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt, 4231 .set_tx_power = mwifiex_cfg80211_set_tx_power, 4232 .get_tx_power = mwifiex_cfg80211_get_tx_power, 4233 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask, 4234 .start_ap = mwifiex_cfg80211_start_ap, 4235 .stop_ap = mwifiex_cfg80211_stop_ap, 4236 .change_beacon = mwifiex_cfg80211_change_beacon, 4237 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config, 4238 .set_antenna = mwifiex_cfg80211_set_antenna, 4239 .get_antenna = mwifiex_cfg80211_get_antenna, 4240 .del_station = mwifiex_cfg80211_del_station, 4241 .sched_scan_start = mwifiex_cfg80211_sched_scan_start, 4242 .sched_scan_stop = mwifiex_cfg80211_sched_scan_stop, 4243 #ifdef CONFIG_PM 4244 .suspend = mwifiex_cfg80211_suspend, 4245 .resume = mwifiex_cfg80211_resume, 4246 .set_wakeup = mwifiex_cfg80211_set_wakeup, 4247 .set_rekey_data = mwifiex_set_rekey_data, 4248 #endif 4249 .set_coalesce = mwifiex_cfg80211_set_coalesce, 4250 .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt, 4251 .tdls_oper = mwifiex_cfg80211_tdls_oper, 4252 .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch, 4253 .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch, 4254 .add_station = mwifiex_cfg80211_add_station, 4255 .change_station = mwifiex_cfg80211_change_station, 4256 CFG80211_TESTMODE_CMD(mwifiex_tm_cmd) 4257 .get_channel = mwifiex_cfg80211_get_channel, 4258 .start_radar_detection = mwifiex_cfg80211_start_radar_detection, 4259 .channel_switch = mwifiex_cfg80211_channel_switch, 4260 }; 4261 4262 #ifdef CONFIG_PM 4263 static const struct wiphy_wowlan_support mwifiex_wowlan_support = { 4264 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT | 4265 WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 4266 WIPHY_WOWLAN_GTK_REKEY_FAILURE, 4267 .n_patterns = MWIFIEX_MEF_MAX_FILTERS, 4268 .pattern_min_len = 1, 4269 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4270 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4271 .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS, 4272 }; 4273 4274 static const struct wiphy_wowlan_support mwifiex_wowlan_support_no_gtk = { 4275 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT | 4276 WIPHY_WOWLAN_NET_DETECT, 4277 .n_patterns = MWIFIEX_MEF_MAX_FILTERS, 4278 .pattern_min_len = 1, 4279 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4280 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4281 .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS, 4282 }; 4283 #endif 4284 4285 static bool mwifiex_is_valid_alpha2(const char *alpha2) 4286 { 4287 if (!alpha2 || strlen(alpha2) != 2) 4288 return false; 4289 4290 if (isalpha(alpha2[0]) && isalpha(alpha2[1])) 4291 return true; 4292 4293 return false; 4294 } 4295 4296 static const struct wiphy_coalesce_support mwifiex_coalesce_support = { 4297 .n_rules = MWIFIEX_COALESCE_MAX_RULES, 4298 .max_delay = MWIFIEX_MAX_COALESCING_DELAY, 4299 .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS, 4300 .pattern_min_len = 1, 4301 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4302 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4303 }; 4304 4305 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter) 4306 { 4307 u32 n_channels_bg, n_channels_a = 0; 4308 4309 n_channels_bg = mwifiex_band_2ghz.n_channels; 4310 4311 if (adapter->config_bands & BAND_A) 4312 n_channels_a = mwifiex_band_5ghz.n_channels; 4313 4314 /* allocate twice the number total channels, since the driver issues an 4315 * additional active scan request for hidden SSIDs on passive channels. 4316 */ 4317 adapter->num_in_chan_stats = 2 * (n_channels_bg + n_channels_a); 4318 adapter->chan_stats = vmalloc(array_size(sizeof(*adapter->chan_stats), 4319 adapter->num_in_chan_stats)); 4320 4321 if (!adapter->chan_stats) 4322 return -ENOMEM; 4323 4324 return 0; 4325 } 4326 4327 /* 4328 * This function registers the device with CFG802.11 subsystem. 4329 * 4330 * The function creates the wireless device/wiphy, populates it with 4331 * default parameters and handler function pointers, and finally 4332 * registers the device. 4333 */ 4334 4335 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter) 4336 { 4337 int ret; 4338 void *wdev_priv; 4339 struct wiphy *wiphy; 4340 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA]; 4341 u8 *country_code; 4342 u32 thr, retry; 4343 4344 /* create a new wiphy for use with cfg80211 */ 4345 wiphy = wiphy_new(&mwifiex_cfg80211_ops, 4346 sizeof(struct mwifiex_adapter *)); 4347 if (!wiphy) { 4348 mwifiex_dbg(adapter, ERROR, 4349 "%s: creating new wiphy\n", __func__); 4350 return -ENOMEM; 4351 } 4352 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH; 4353 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN; 4354 wiphy->mgmt_stypes = mwifiex_mgmt_stypes; 4355 wiphy->max_remain_on_channel_duration = 5000; 4356 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 4357 BIT(NL80211_IFTYPE_P2P_CLIENT) | 4358 BIT(NL80211_IFTYPE_P2P_GO) | 4359 BIT(NL80211_IFTYPE_AP); 4360 4361 if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info)) 4362 wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC); 4363 4364 wiphy->bands[NL80211_BAND_2GHZ] = &mwifiex_band_2ghz; 4365 if (adapter->config_bands & BAND_A) 4366 wiphy->bands[NL80211_BAND_5GHZ] = &mwifiex_band_5ghz; 4367 else 4368 wiphy->bands[NL80211_BAND_5GHZ] = NULL; 4369 4370 if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info)) 4371 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs; 4372 else if (adapter->is_hw_11ac_capable) 4373 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht; 4374 else 4375 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta; 4376 wiphy->n_iface_combinations = 1; 4377 4378 if (adapter->max_sta_conn > adapter->max_p2p_conn) 4379 wiphy->max_ap_assoc_sta = adapter->max_sta_conn; 4380 else 4381 wiphy->max_ap_assoc_sta = adapter->max_p2p_conn; 4382 4383 /* Initialize cipher suits */ 4384 wiphy->cipher_suites = mwifiex_cipher_suites; 4385 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites); 4386 4387 if (adapter->regd) { 4388 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 4389 REGULATORY_DISABLE_BEACON_HINTS | 4390 REGULATORY_COUNTRY_IE_IGNORE; 4391 wiphy_apply_custom_regulatory(wiphy, adapter->regd); 4392 } 4393 4394 ether_addr_copy(wiphy->perm_addr, adapter->perm_addr); 4395 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 4396 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | 4397 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | 4398 WIPHY_FLAG_AP_UAPSD | 4399 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | 4400 WIPHY_FLAG_HAS_CHANNEL_SWITCH | 4401 WIPHY_FLAG_NETNS_OK | 4402 WIPHY_FLAG_PS_ON_BY_DEFAULT; 4403 4404 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info)) 4405 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS | 4406 WIPHY_FLAG_TDLS_EXTERNAL_SETUP; 4407 4408 #ifdef CONFIG_PM 4409 if (ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info)) 4410 wiphy->wowlan = &mwifiex_wowlan_support; 4411 else 4412 wiphy->wowlan = &mwifiex_wowlan_support_no_gtk; 4413 #endif 4414 4415 wiphy->coalesce = &mwifiex_coalesce_support; 4416 4417 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 4418 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 4419 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; 4420 4421 wiphy->max_sched_scan_reqs = 1; 4422 wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH; 4423 wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN; 4424 wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH; 4425 4426 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1; 4427 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1; 4428 4429 wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER | 4430 NL80211_FEATURE_LOW_PRIORITY_SCAN | 4431 NL80211_FEATURE_NEED_OBSS_SCAN; 4432 4433 if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info)) 4434 wiphy->features |= NL80211_FEATURE_HT_IBSS; 4435 4436 if (ISSUPP_RANDOM_MAC(adapter->fw_cap_info)) 4437 wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 4438 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 4439 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 4440 4441 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info)) 4442 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 4443 4444 if (adapter->fw_api_ver == MWIFIEX_FW_V15) 4445 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS; 4446 4447 /* Reserve space for mwifiex specific private data for BSS */ 4448 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv); 4449 4450 wiphy->reg_notifier = mwifiex_reg_notifier; 4451 4452 /* Set struct mwifiex_adapter pointer in wiphy_priv */ 4453 wdev_priv = wiphy_priv(wiphy); 4454 *(unsigned long *)wdev_priv = (unsigned long)adapter; 4455 4456 set_wiphy_dev(wiphy, priv->adapter->dev); 4457 4458 ret = wiphy_register(wiphy); 4459 if (ret < 0) { 4460 mwifiex_dbg(adapter, ERROR, 4461 "%s: wiphy_register failed: %d\n", __func__, ret); 4462 wiphy_free(wiphy); 4463 return ret; 4464 } 4465 4466 if (!adapter->regd) { 4467 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) { 4468 mwifiex_dbg(adapter, INFO, 4469 "driver hint alpha2: %2.2s\n", reg_alpha2); 4470 regulatory_hint(wiphy, reg_alpha2); 4471 } else { 4472 if (adapter->region_code == 0x00) { 4473 mwifiex_dbg(adapter, WARN, 4474 "Ignore world regulatory domain\n"); 4475 } else { 4476 wiphy->regulatory_flags |= 4477 REGULATORY_DISABLE_BEACON_HINTS | 4478 REGULATORY_COUNTRY_IE_IGNORE; 4479 country_code = 4480 mwifiex_11d_code_2_region( 4481 adapter->region_code); 4482 if (country_code && 4483 regulatory_hint(wiphy, country_code)) 4484 mwifiex_dbg(priv->adapter, ERROR, 4485 "regulatory_hint() failed\n"); 4486 } 4487 } 4488 } 4489 4490 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4491 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true); 4492 wiphy->frag_threshold = thr; 4493 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4494 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true); 4495 wiphy->rts_threshold = thr; 4496 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4497 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true); 4498 wiphy->retry_short = (u8) retry; 4499 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4500 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true); 4501 wiphy->retry_long = (u8) retry; 4502 4503 adapter->wiphy = wiphy; 4504 return ret; 4505 } 4506