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_beacon_data *data) 1839 { 1840 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1841 struct mwifiex_adapter *adapter = priv->adapter; 1842 1843 mwifiex_cancel_scan(adapter); 1844 1845 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) { 1846 mwifiex_dbg(priv->adapter, ERROR, 1847 "%s: bss_type mismatched\n", __func__); 1848 return -EINVAL; 1849 } 1850 1851 if (!priv->bss_started) { 1852 mwifiex_dbg(priv->adapter, ERROR, 1853 "%s: bss not started\n", __func__); 1854 return -EINVAL; 1855 } 1856 1857 if (mwifiex_set_mgmt_ies(priv, data)) { 1858 mwifiex_dbg(priv->adapter, ERROR, 1859 "%s: setting mgmt ies failed\n", __func__); 1860 return -EFAULT; 1861 } 1862 1863 return 0; 1864 } 1865 1866 /* cfg80211 operation handler for del_station. 1867 * Function deauthenticates station which value is provided in mac parameter. 1868 * If mac is NULL/broadcast, all stations in associated station list are 1869 * deauthenticated. If bss is not started or there are no stations in 1870 * associated stations list, no action is taken. 1871 */ 1872 static int 1873 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1874 struct station_del_parameters *params) 1875 { 1876 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1877 struct mwifiex_sta_node *sta_node; 1878 u8 deauth_mac[ETH_ALEN]; 1879 1880 if (!priv->bss_started && priv->wdev.cac_started) { 1881 mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__); 1882 mwifiex_abort_cac(priv); 1883 } 1884 1885 if (list_empty(&priv->sta_list) || !priv->bss_started) 1886 return 0; 1887 1888 if (!params->mac || is_broadcast_ether_addr(params->mac)) 1889 return 0; 1890 1891 mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n", 1892 __func__, params->mac); 1893 1894 eth_zero_addr(deauth_mac); 1895 1896 spin_lock_bh(&priv->sta_list_spinlock); 1897 sta_node = mwifiex_get_sta_entry(priv, params->mac); 1898 if (sta_node) 1899 ether_addr_copy(deauth_mac, params->mac); 1900 spin_unlock_bh(&priv->sta_list_spinlock); 1901 1902 if (is_valid_ether_addr(deauth_mac)) { 1903 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH, 1904 HostCmd_ACT_GEN_SET, 0, 1905 deauth_mac, true)) 1906 return -1; 1907 } 1908 1909 return 0; 1910 } 1911 1912 static int 1913 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 1914 { 1915 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 1916 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 1917 MWIFIEX_BSS_ROLE_ANY); 1918 struct mwifiex_ds_ant_cfg ant_cfg; 1919 1920 if (!tx_ant || !rx_ant) 1921 return -EOPNOTSUPP; 1922 1923 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) { 1924 /* Not a MIMO chip. User should provide specific antenna number 1925 * for Tx/Rx path or enable all antennas for diversity 1926 */ 1927 if (tx_ant != rx_ant) 1928 return -EOPNOTSUPP; 1929 1930 if ((tx_ant & (tx_ant - 1)) && 1931 (tx_ant != BIT(adapter->number_of_antenna) - 1)) 1932 return -EOPNOTSUPP; 1933 1934 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) && 1935 (priv->adapter->number_of_antenna > 1)) { 1936 tx_ant = RF_ANTENNA_AUTO; 1937 rx_ant = RF_ANTENNA_AUTO; 1938 } 1939 } else { 1940 struct ieee80211_sta_ht_cap *ht_info; 1941 int rx_mcs_supp; 1942 enum nl80211_band band; 1943 1944 if ((tx_ant == 0x1 && rx_ant == 0x1)) { 1945 adapter->user_dev_mcs_support = HT_STREAM_1X1; 1946 if (adapter->is_hw_11ac_capable) 1947 adapter->usr_dot_11ac_mcs_support = 1948 MWIFIEX_11AC_MCS_MAP_1X1; 1949 } else { 1950 adapter->user_dev_mcs_support = HT_STREAM_2X2; 1951 if (adapter->is_hw_11ac_capable) 1952 adapter->usr_dot_11ac_mcs_support = 1953 MWIFIEX_11AC_MCS_MAP_2X2; 1954 } 1955 1956 for (band = 0; band < NUM_NL80211_BANDS; band++) { 1957 if (!adapter->wiphy->bands[band]) 1958 continue; 1959 1960 ht_info = &adapter->wiphy->bands[band]->ht_cap; 1961 rx_mcs_supp = 1962 GET_RXMCSSUPP(adapter->user_dev_mcs_support); 1963 memset(&ht_info->mcs, 0, adapter->number_of_antenna); 1964 memset(&ht_info->mcs, 0xff, rx_mcs_supp); 1965 } 1966 } 1967 1968 ant_cfg.tx_ant = tx_ant; 1969 ant_cfg.rx_ant = rx_ant; 1970 1971 return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA, 1972 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true); 1973 } 1974 1975 static int 1976 mwifiex_cfg80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 1977 { 1978 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 1979 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 1980 MWIFIEX_BSS_ROLE_ANY); 1981 mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA, 1982 HostCmd_ACT_GEN_GET, 0, NULL, true); 1983 1984 *tx_ant = priv->tx_ant; 1985 *rx_ant = priv->rx_ant; 1986 1987 return 0; 1988 } 1989 1990 /* cfg80211 operation handler for stop ap. 1991 * Function stops BSS running at uAP interface. 1992 */ 1993 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1994 unsigned int link_id) 1995 { 1996 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1997 1998 mwifiex_abort_cac(priv); 1999 2000 if (mwifiex_del_mgmt_ies(priv)) 2001 mwifiex_dbg(priv->adapter, ERROR, 2002 "Failed to delete mgmt IEs!\n"); 2003 2004 priv->ap_11n_enabled = 0; 2005 memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg)); 2006 2007 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP, 2008 HostCmd_ACT_GEN_SET, 0, NULL, true)) { 2009 mwifiex_dbg(priv->adapter, ERROR, 2010 "Failed to stop the BSS\n"); 2011 return -1; 2012 } 2013 2014 if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET, 2015 HostCmd_ACT_GEN_SET, 0, NULL, true)) { 2016 mwifiex_dbg(priv->adapter, ERROR, 2017 "Failed to reset BSS\n"); 2018 return -1; 2019 } 2020 2021 if (netif_carrier_ok(priv->netdev)) 2022 netif_carrier_off(priv->netdev); 2023 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter); 2024 2025 return 0; 2026 } 2027 2028 /* cfg80211 operation handler for start_ap. 2029 * Function sets beacon period, DTIM period, SSID and security into 2030 * AP config structure. 2031 * AP is configured with these settings and BSS is started. 2032 */ 2033 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy, 2034 struct net_device *dev, 2035 struct cfg80211_ap_settings *params) 2036 { 2037 struct mwifiex_uap_bss_param *bss_cfg; 2038 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2039 2040 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) 2041 return -1; 2042 2043 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL); 2044 if (!bss_cfg) 2045 return -ENOMEM; 2046 2047 mwifiex_set_sys_config_invalid_data(bss_cfg); 2048 2049 if (params->beacon_interval) 2050 bss_cfg->beacon_period = params->beacon_interval; 2051 if (params->dtim_period) 2052 bss_cfg->dtim_period = params->dtim_period; 2053 2054 if (params->ssid && params->ssid_len) { 2055 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len); 2056 bss_cfg->ssid.ssid_len = params->ssid_len; 2057 } 2058 if (params->inactivity_timeout > 0) { 2059 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */ 2060 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout; 2061 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout; 2062 } 2063 2064 switch (params->hidden_ssid) { 2065 case NL80211_HIDDEN_SSID_NOT_IN_USE: 2066 bss_cfg->bcast_ssid_ctl = 1; 2067 break; 2068 case NL80211_HIDDEN_SSID_ZERO_LEN: 2069 bss_cfg->bcast_ssid_ctl = 0; 2070 break; 2071 case NL80211_HIDDEN_SSID_ZERO_CONTENTS: 2072 bss_cfg->bcast_ssid_ctl = 2; 2073 break; 2074 default: 2075 kfree(bss_cfg); 2076 return -EINVAL; 2077 } 2078 2079 mwifiex_uap_set_channel(priv, bss_cfg, params->chandef); 2080 mwifiex_set_uap_rates(bss_cfg, params); 2081 2082 if (mwifiex_set_secure_params(priv, bss_cfg, params)) { 2083 mwifiex_dbg(priv->adapter, ERROR, 2084 "Failed to parse security parameters!\n"); 2085 goto out; 2086 } 2087 2088 mwifiex_set_ht_params(priv, bss_cfg, params); 2089 2090 if (priv->adapter->is_hw_11ac_capable) { 2091 mwifiex_set_vht_params(priv, bss_cfg, params); 2092 mwifiex_set_vht_width(priv, params->chandef.width, 2093 priv->ap_11ac_enabled); 2094 } 2095 2096 if (priv->ap_11ac_enabled) 2097 mwifiex_set_11ac_ba_params(priv); 2098 else 2099 mwifiex_set_ba_params(priv); 2100 2101 mwifiex_set_wmm_params(priv, bss_cfg, params); 2102 2103 if (mwifiex_is_11h_active(priv)) 2104 mwifiex_set_tpc_params(priv, bss_cfg, params); 2105 2106 if (mwifiex_is_11h_active(priv) && 2107 !cfg80211_chandef_dfs_required(wiphy, ¶ms->chandef, 2108 priv->bss_mode)) { 2109 mwifiex_dbg(priv->adapter, INFO, 2110 "Disable 11h extensions in FW\n"); 2111 if (mwifiex_11h_activate(priv, false)) { 2112 mwifiex_dbg(priv->adapter, ERROR, 2113 "Failed to disable 11h extensions!!"); 2114 goto out; 2115 } 2116 priv->state_11h.is_11h_active = false; 2117 } 2118 2119 mwifiex_config_uap_11d(priv, ¶ms->beacon); 2120 2121 if (mwifiex_config_start_uap(priv, bss_cfg)) { 2122 mwifiex_dbg(priv->adapter, ERROR, 2123 "Failed to start AP\n"); 2124 goto out; 2125 } 2126 2127 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon)) 2128 goto out; 2129 2130 if (!netif_carrier_ok(priv->netdev)) 2131 netif_carrier_on(priv->netdev); 2132 mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter); 2133 2134 memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg)); 2135 kfree(bss_cfg); 2136 return 0; 2137 2138 out: 2139 kfree(bss_cfg); 2140 return -1; 2141 } 2142 2143 /* 2144 * CFG802.11 operation handler for disconnection request. 2145 * 2146 * This function does not work when there is already a disconnection 2147 * procedure going on. 2148 */ 2149 static int 2150 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev, 2151 u16 reason_code) 2152 { 2153 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2154 2155 if (!mwifiex_stop_bg_scan(priv)) 2156 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0); 2157 2158 if (mwifiex_deauthenticate(priv, NULL)) 2159 return -EFAULT; 2160 2161 eth_zero_addr(priv->cfg_bssid); 2162 priv->hs2_enabled = false; 2163 2164 return 0; 2165 } 2166 2167 /* 2168 * This function informs the CFG802.11 subsystem of a new IBSS. 2169 * 2170 * The following information are sent to the CFG802.11 subsystem 2171 * to register the new IBSS. If we do not register the new IBSS, 2172 * a kernel panic will result. 2173 * - SSID 2174 * - SSID length 2175 * - BSSID 2176 * - Channel 2177 */ 2178 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv) 2179 { 2180 struct ieee80211_channel *chan; 2181 struct mwifiex_bss_info bss_info; 2182 struct cfg80211_bss *bss; 2183 int ie_len; 2184 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)]; 2185 enum nl80211_band band; 2186 2187 if (mwifiex_get_bss_info(priv, &bss_info)) 2188 return -1; 2189 2190 ie_buf[0] = WLAN_EID_SSID; 2191 ie_buf[1] = bss_info.ssid.ssid_len; 2192 2193 memcpy(&ie_buf[sizeof(struct ieee_types_header)], 2194 &bss_info.ssid.ssid, bss_info.ssid.ssid_len); 2195 ie_len = ie_buf[1] + sizeof(struct ieee_types_header); 2196 2197 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 2198 chan = ieee80211_get_channel(priv->wdev.wiphy, 2199 ieee80211_channel_to_frequency(bss_info.bss_chan, 2200 band)); 2201 2202 bss = cfg80211_inform_bss(priv->wdev.wiphy, chan, 2203 CFG80211_BSS_FTYPE_UNKNOWN, 2204 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS, 2205 0, ie_buf, ie_len, 0, GFP_KERNEL); 2206 if (bss) { 2207 cfg80211_put_bss(priv->wdev.wiphy, bss); 2208 ether_addr_copy(priv->cfg_bssid, bss_info.bssid); 2209 } 2210 2211 return 0; 2212 } 2213 2214 /* 2215 * This function connects with a BSS. 2216 * 2217 * This function handles both Infra and Ad-Hoc modes. It also performs 2218 * validity checking on the provided parameters, disconnects from the 2219 * current BSS (if any), sets up the association/scan parameters, 2220 * including security settings, and performs specific SSID scan before 2221 * trying to connect. 2222 * 2223 * For Infra mode, the function returns failure if the specified SSID 2224 * is not found in scan table. However, for Ad-Hoc mode, it can create 2225 * the IBSS if it does not exist. On successful completion in either case, 2226 * the function notifies the CFG802.11 subsystem of the new BSS connection. 2227 */ 2228 static int 2229 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, 2230 const u8 *ssid, const u8 *bssid, int mode, 2231 struct ieee80211_channel *channel, 2232 struct cfg80211_connect_params *sme, bool privacy, 2233 struct cfg80211_bss **sel_bss) 2234 { 2235 struct cfg80211_ssid req_ssid; 2236 int ret, auth_type = 0; 2237 struct cfg80211_bss *bss = NULL; 2238 u8 is_scanning_required = 0; 2239 2240 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid)); 2241 2242 req_ssid.ssid_len = ssid_len; 2243 if (ssid_len > IEEE80211_MAX_SSID_LEN) { 2244 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n"); 2245 return -EINVAL; 2246 } 2247 2248 memcpy(req_ssid.ssid, ssid, ssid_len); 2249 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) { 2250 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n"); 2251 return -EINVAL; 2252 } 2253 2254 /* As this is new association, clear locally stored 2255 * keys and security related flags */ 2256 priv->sec_info.wpa_enabled = false; 2257 priv->sec_info.wpa2_enabled = false; 2258 priv->wep_key_curr_index = 0; 2259 priv->sec_info.encryption_mode = 0; 2260 priv->sec_info.is_authtype_auto = 0; 2261 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1); 2262 2263 if (mode == NL80211_IFTYPE_ADHOC) { 2264 u16 enable = true; 2265 2266 /* set ibss coalescing_status */ 2267 ret = mwifiex_send_cmd( 2268 priv, 2269 HostCmd_CMD_802_11_IBSS_COALESCING_STATUS, 2270 HostCmd_ACT_GEN_SET, 0, &enable, true); 2271 if (ret) 2272 return ret; 2273 2274 /* "privacy" is set only for ad-hoc mode */ 2275 if (privacy) { 2276 /* 2277 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that 2278 * the firmware can find a matching network from the 2279 * scan. The cfg80211 does not give us the encryption 2280 * mode at this stage so just setting it to WEP here. 2281 */ 2282 priv->sec_info.encryption_mode = 2283 WLAN_CIPHER_SUITE_WEP104; 2284 priv->sec_info.authentication_mode = 2285 NL80211_AUTHTYPE_OPEN_SYSTEM; 2286 } 2287 2288 goto done; 2289 } 2290 2291 /* Now handle infra mode. "sme" is valid for infra mode only */ 2292 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { 2293 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; 2294 priv->sec_info.is_authtype_auto = 1; 2295 } else { 2296 auth_type = sme->auth_type; 2297 } 2298 2299 if (sme->crypto.n_ciphers_pairwise) { 2300 priv->sec_info.encryption_mode = 2301 sme->crypto.ciphers_pairwise[0]; 2302 priv->sec_info.authentication_mode = auth_type; 2303 } 2304 2305 if (sme->crypto.cipher_group) { 2306 priv->sec_info.encryption_mode = sme->crypto.cipher_group; 2307 priv->sec_info.authentication_mode = auth_type; 2308 } 2309 if (sme->ie) 2310 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len); 2311 2312 if (sme->key) { 2313 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) { 2314 mwifiex_dbg(priv->adapter, INFO, 2315 "info: setting wep encryption\t" 2316 "with key len %d\n", sme->key_len); 2317 priv->wep_key_curr_index = sme->key_idx; 2318 ret = mwifiex_set_encode(priv, NULL, sme->key, 2319 sme->key_len, sme->key_idx, 2320 NULL, 0); 2321 } 2322 } 2323 done: 2324 /* 2325 * Scan entries are valid for some time (15 sec). So we can save one 2326 * active scan time if we just try cfg80211_get_bss first. If it fails 2327 * then request scan and cfg80211_get_bss() again for final output. 2328 */ 2329 while (1) { 2330 if (is_scanning_required) { 2331 /* Do specific SSID scanning */ 2332 if (mwifiex_request_scan(priv, &req_ssid)) { 2333 mwifiex_dbg(priv->adapter, ERROR, "scan error\n"); 2334 return -EFAULT; 2335 } 2336 } 2337 2338 /* Find the BSS we want using available scan results */ 2339 if (mode == NL80211_IFTYPE_ADHOC) 2340 bss = cfg80211_get_bss(priv->wdev.wiphy, channel, 2341 bssid, ssid, ssid_len, 2342 IEEE80211_BSS_TYPE_IBSS, 2343 IEEE80211_PRIVACY_ANY); 2344 else 2345 bss = cfg80211_get_bss(priv->wdev.wiphy, channel, 2346 bssid, ssid, ssid_len, 2347 IEEE80211_BSS_TYPE_ESS, 2348 IEEE80211_PRIVACY_ANY); 2349 2350 if (!bss) { 2351 if (is_scanning_required) { 2352 mwifiex_dbg(priv->adapter, MSG, 2353 "assoc: requested bss not found in scan results\n"); 2354 break; 2355 } 2356 is_scanning_required = 1; 2357 } else { 2358 mwifiex_dbg(priv->adapter, MSG, 2359 "info: trying to associate to bssid %pM\n", 2360 bss->bssid); 2361 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN); 2362 break; 2363 } 2364 } 2365 2366 if (bss) 2367 cfg80211_ref_bss(priv->adapter->wiphy, bss); 2368 2369 ret = mwifiex_bss_start(priv, bss, &req_ssid); 2370 if (ret) 2371 goto cleanup; 2372 2373 if (mode == NL80211_IFTYPE_ADHOC) { 2374 /* Inform the BSS information to kernel, otherwise 2375 * kernel will give a panic after successful assoc */ 2376 if (mwifiex_cfg80211_inform_ibss_bss(priv)) { 2377 ret = -EFAULT; 2378 goto cleanup; 2379 } 2380 } 2381 2382 /* Pass the selected BSS entry to caller. */ 2383 if (sel_bss) { 2384 *sel_bss = bss; 2385 bss = NULL; 2386 } 2387 2388 cleanup: 2389 if (bss) 2390 cfg80211_put_bss(priv->adapter->wiphy, bss); 2391 return ret; 2392 } 2393 2394 /* 2395 * CFG802.11 operation handler for association request. 2396 * 2397 * This function does not work when the current mode is set to Ad-Hoc, or 2398 * when there is already an association procedure going on. The given BSS 2399 * information is used to associate. 2400 */ 2401 static int 2402 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, 2403 struct cfg80211_connect_params *sme) 2404 { 2405 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2406 struct mwifiex_adapter *adapter = priv->adapter; 2407 struct cfg80211_bss *bss = NULL; 2408 int ret; 2409 2410 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) { 2411 mwifiex_dbg(adapter, ERROR, 2412 "%s: reject infra assoc request in non-STA role\n", 2413 dev->name); 2414 return -EINVAL; 2415 } 2416 2417 if (priv->wdev.connected) { 2418 mwifiex_dbg(adapter, ERROR, 2419 "%s: already connected\n", dev->name); 2420 return -EALREADY; 2421 } 2422 2423 if (priv->scan_block) 2424 priv->scan_block = false; 2425 2426 if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags) || 2427 test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags)) { 2428 mwifiex_dbg(adapter, ERROR, 2429 "%s: Ignore connection.\t" 2430 "Card removed or FW in bad state\n", 2431 dev->name); 2432 return -EFAULT; 2433 } 2434 2435 mwifiex_dbg(adapter, INFO, 2436 "info: Trying to associate to bssid %pM\n", sme->bssid); 2437 2438 if (!mwifiex_stop_bg_scan(priv)) 2439 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0); 2440 2441 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid, 2442 priv->bss_mode, sme->channel, sme, 0, 2443 &bss); 2444 if (!ret) { 2445 cfg80211_connect_bss(priv->netdev, priv->cfg_bssid, bss, NULL, 2446 0, NULL, 0, WLAN_STATUS_SUCCESS, 2447 GFP_KERNEL, NL80211_TIMEOUT_UNSPECIFIED); 2448 mwifiex_dbg(priv->adapter, MSG, 2449 "info: associated to bssid %pM successfully\n", 2450 priv->cfg_bssid); 2451 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) && 2452 priv->adapter->auto_tdls && 2453 priv->bss_type == MWIFIEX_BSS_TYPE_STA) 2454 mwifiex_setup_auto_tdls_timer(priv); 2455 } else { 2456 mwifiex_dbg(priv->adapter, ERROR, 2457 "info: association to bssid %pM failed\n", 2458 priv->cfg_bssid); 2459 eth_zero_addr(priv->cfg_bssid); 2460 2461 if (ret > 0) 2462 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, 2463 NULL, 0, NULL, 0, ret, 2464 GFP_KERNEL); 2465 else 2466 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, 2467 NULL, 0, NULL, 0, 2468 WLAN_STATUS_UNSPECIFIED_FAILURE, 2469 GFP_KERNEL); 2470 } 2471 2472 return 0; 2473 } 2474 2475 /* 2476 * This function sets following parameters for ibss network. 2477 * - channel 2478 * - start band 2479 * - 11n flag 2480 * - secondary channel offset 2481 */ 2482 static int mwifiex_set_ibss_params(struct mwifiex_private *priv, 2483 struct cfg80211_ibss_params *params) 2484 { 2485 struct mwifiex_adapter *adapter = priv->adapter; 2486 int index = 0, i; 2487 u8 config_bands = 0; 2488 2489 if (params->chandef.chan->band == NL80211_BAND_2GHZ) { 2490 if (!params->basic_rates) { 2491 config_bands = BAND_B | BAND_G; 2492 } else { 2493 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) { 2494 /* 2495 * Rates below 6 Mbps in the table are CCK 2496 * rates; 802.11b and from 6 they are OFDM; 2497 * 802.11G 2498 */ 2499 if (mwifiex_rates[i].bitrate == 60) { 2500 index = 1 << i; 2501 break; 2502 } 2503 } 2504 2505 if (params->basic_rates < index) { 2506 config_bands = BAND_B; 2507 } else { 2508 config_bands = BAND_G; 2509 if (params->basic_rates % index) 2510 config_bands |= BAND_B; 2511 } 2512 } 2513 2514 if (cfg80211_get_chandef_type(¶ms->chandef) != 2515 NL80211_CHAN_NO_HT) 2516 config_bands |= BAND_G | BAND_GN; 2517 } else { 2518 if (cfg80211_get_chandef_type(¶ms->chandef) == 2519 NL80211_CHAN_NO_HT) 2520 config_bands = BAND_A; 2521 else 2522 config_bands = BAND_AN | BAND_A; 2523 } 2524 2525 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) { 2526 adapter->config_bands = config_bands; 2527 adapter->adhoc_start_band = config_bands; 2528 2529 if ((config_bands & BAND_GN) || (config_bands & BAND_AN)) 2530 adapter->adhoc_11n_enabled = true; 2531 else 2532 adapter->adhoc_11n_enabled = false; 2533 } 2534 2535 adapter->sec_chan_offset = 2536 mwifiex_chan_type_to_sec_chan_offset( 2537 cfg80211_get_chandef_type(¶ms->chandef)); 2538 priv->adhoc_channel = ieee80211_frequency_to_channel( 2539 params->chandef.chan->center_freq); 2540 2541 mwifiex_dbg(adapter, INFO, 2542 "info: set ibss band %d, chan %d, chan offset %d\n", 2543 config_bands, priv->adhoc_channel, 2544 adapter->sec_chan_offset); 2545 2546 return 0; 2547 } 2548 2549 /* 2550 * CFG802.11 operation handler to join an IBSS. 2551 * 2552 * This function does not work in any mode other than Ad-Hoc, or if 2553 * a join operation is already in progress. 2554 */ 2555 static int 2556 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2557 struct cfg80211_ibss_params *params) 2558 { 2559 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2560 int ret = 0; 2561 2562 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) { 2563 mwifiex_dbg(priv->adapter, ERROR, 2564 "request to join ibss received\t" 2565 "when station is not in ibss mode\n"); 2566 goto done; 2567 } 2568 2569 mwifiex_dbg(priv->adapter, MSG, "info: trying to join to bssid %pM\n", 2570 params->bssid); 2571 2572 mwifiex_set_ibss_params(priv, params); 2573 2574 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid, 2575 params->bssid, priv->bss_mode, 2576 params->chandef.chan, NULL, 2577 params->privacy, NULL); 2578 done: 2579 if (!ret) { 2580 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, 2581 params->chandef.chan, GFP_KERNEL); 2582 mwifiex_dbg(priv->adapter, MSG, 2583 "info: joined/created adhoc network with bssid\t" 2584 "%pM successfully\n", priv->cfg_bssid); 2585 } else { 2586 mwifiex_dbg(priv->adapter, ERROR, 2587 "info: failed creating/joining adhoc network\n"); 2588 } 2589 2590 return ret; 2591 } 2592 2593 /* 2594 * CFG802.11 operation handler to leave an IBSS. 2595 * 2596 * This function does not work if a leave operation is 2597 * already in progress. 2598 */ 2599 static int 2600 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2601 { 2602 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2603 2604 mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n", 2605 priv->cfg_bssid); 2606 if (mwifiex_deauthenticate(priv, NULL)) 2607 return -EFAULT; 2608 2609 eth_zero_addr(priv->cfg_bssid); 2610 2611 return 0; 2612 } 2613 2614 /* 2615 * CFG802.11 operation handler for scan request. 2616 * 2617 * This function issues a scan request to the firmware based upon 2618 * the user specified scan configuration. On successful completion, 2619 * it also informs the results. 2620 */ 2621 static int 2622 mwifiex_cfg80211_scan(struct wiphy *wiphy, 2623 struct cfg80211_scan_request *request) 2624 { 2625 struct net_device *dev = request->wdev->netdev; 2626 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2627 int i, offset, ret; 2628 struct ieee80211_channel *chan; 2629 struct ieee_types_header *ie; 2630 struct mwifiex_user_scan_cfg *user_scan_cfg; 2631 u8 mac_addr[ETH_ALEN]; 2632 2633 mwifiex_dbg(priv->adapter, CMD, 2634 "info: received scan request on %s\n", dev->name); 2635 2636 /* Block scan request if scan operation or scan cleanup when interface 2637 * is disabled is in process 2638 */ 2639 if (priv->scan_request || priv->scan_aborting) { 2640 mwifiex_dbg(priv->adapter, WARN, 2641 "cmd: Scan already in process..\n"); 2642 return -EBUSY; 2643 } 2644 2645 if (!priv->wdev.connected && priv->scan_block) 2646 priv->scan_block = false; 2647 2648 if (!mwifiex_stop_bg_scan(priv)) 2649 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0); 2650 2651 user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL); 2652 if (!user_scan_cfg) 2653 return -ENOMEM; 2654 2655 priv->scan_request = request; 2656 2657 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) { 2658 get_random_mask_addr(mac_addr, request->mac_addr, 2659 request->mac_addr_mask); 2660 ether_addr_copy(request->mac_addr, mac_addr); 2661 ether_addr_copy(user_scan_cfg->random_mac, mac_addr); 2662 } 2663 2664 user_scan_cfg->num_ssids = request->n_ssids; 2665 user_scan_cfg->ssid_list = request->ssids; 2666 2667 if (request->ie && request->ie_len) { 2668 offset = 0; 2669 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2670 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR) 2671 continue; 2672 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN; 2673 ie = (struct ieee_types_header *)(request->ie + offset); 2674 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len); 2675 offset += sizeof(*ie) + ie->len; 2676 2677 if (offset >= request->ie_len) 2678 break; 2679 } 2680 } 2681 2682 for (i = 0; i < min_t(u32, request->n_channels, 2683 MWIFIEX_USER_SCAN_CHAN_MAX); i++) { 2684 chan = request->channels[i]; 2685 user_scan_cfg->chan_list[i].chan_number = chan->hw_value; 2686 user_scan_cfg->chan_list[i].radio_type = chan->band; 2687 2688 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids) 2689 user_scan_cfg->chan_list[i].scan_type = 2690 MWIFIEX_SCAN_TYPE_PASSIVE; 2691 else 2692 user_scan_cfg->chan_list[i].scan_type = 2693 MWIFIEX_SCAN_TYPE_ACTIVE; 2694 2695 user_scan_cfg->chan_list[i].scan_time = 0; 2696 } 2697 2698 if (priv->adapter->scan_chan_gap_enabled && 2699 mwifiex_is_any_intf_active(priv)) 2700 user_scan_cfg->scan_chan_gap = 2701 priv->adapter->scan_chan_gap_time; 2702 2703 ret = mwifiex_scan_networks(priv, user_scan_cfg); 2704 kfree(user_scan_cfg); 2705 if (ret) { 2706 mwifiex_dbg(priv->adapter, ERROR, 2707 "scan failed: %d\n", ret); 2708 priv->scan_aborting = false; 2709 priv->scan_request = NULL; 2710 return ret; 2711 } 2712 2713 if (request->ie && request->ie_len) { 2714 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2715 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) { 2716 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR; 2717 memset(&priv->vs_ie[i].ie, 0, 2718 MWIFIEX_MAX_VSIE_LEN); 2719 } 2720 } 2721 } 2722 return 0; 2723 } 2724 2725 /* CFG802.11 operation handler for sched_scan_start. 2726 * 2727 * This function issues a bgscan config request to the firmware based upon 2728 * the user specified sched_scan configuration. On successful completion, 2729 * firmware will generate BGSCAN_REPORT event, driver should issue bgscan 2730 * query command to get sched_scan results from firmware. 2731 */ 2732 static int 2733 mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy, 2734 struct net_device *dev, 2735 struct cfg80211_sched_scan_request *request) 2736 { 2737 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2738 int i, offset; 2739 struct ieee80211_channel *chan; 2740 struct mwifiex_bg_scan_cfg *bgscan_cfg; 2741 struct ieee_types_header *ie; 2742 2743 if (!request || (!request->n_ssids && !request->n_match_sets)) { 2744 wiphy_err(wiphy, "%s : Invalid Sched_scan parameters", 2745 __func__); 2746 return -EINVAL; 2747 } 2748 2749 wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ", 2750 request->n_ssids, request->n_match_sets); 2751 wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n", 2752 request->n_channels, request->scan_plans->interval, 2753 (int)request->ie_len); 2754 2755 bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL); 2756 if (!bgscan_cfg) 2757 return -ENOMEM; 2758 2759 if (priv->scan_request || priv->scan_aborting) 2760 bgscan_cfg->start_later = true; 2761 2762 bgscan_cfg->num_ssids = request->n_match_sets; 2763 bgscan_cfg->ssid_list = request->match_sets; 2764 2765 if (request->ie && request->ie_len) { 2766 offset = 0; 2767 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2768 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR) 2769 continue; 2770 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN; 2771 ie = (struct ieee_types_header *)(request->ie + offset); 2772 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len); 2773 offset += sizeof(*ie) + ie->len; 2774 2775 if (offset >= request->ie_len) 2776 break; 2777 } 2778 } 2779 2780 for (i = 0; i < min_t(u32, request->n_channels, 2781 MWIFIEX_BG_SCAN_CHAN_MAX); i++) { 2782 chan = request->channels[i]; 2783 bgscan_cfg->chan_list[i].chan_number = chan->hw_value; 2784 bgscan_cfg->chan_list[i].radio_type = chan->band; 2785 2786 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids) 2787 bgscan_cfg->chan_list[i].scan_type = 2788 MWIFIEX_SCAN_TYPE_PASSIVE; 2789 else 2790 bgscan_cfg->chan_list[i].scan_type = 2791 MWIFIEX_SCAN_TYPE_ACTIVE; 2792 2793 bgscan_cfg->chan_list[i].scan_time = 0; 2794 } 2795 2796 bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels, 2797 MWIFIEX_BG_SCAN_CHAN_MAX); 2798 2799 /* Use at least 15 second for per scan cycle */ 2800 bgscan_cfg->scan_interval = (request->scan_plans->interval > 2801 MWIFIEX_BGSCAN_INTERVAL) ? 2802 request->scan_plans->interval : 2803 MWIFIEX_BGSCAN_INTERVAL; 2804 2805 bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT; 2806 bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH | 2807 MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE; 2808 bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA; 2809 bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET; 2810 bgscan_cfg->enable = true; 2811 if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) { 2812 bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH; 2813 bgscan_cfg->rssi_threshold = request->min_rssi_thold; 2814 } 2815 2816 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG, 2817 HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) { 2818 kfree(bgscan_cfg); 2819 return -EFAULT; 2820 } 2821 2822 priv->sched_scanning = true; 2823 2824 kfree(bgscan_cfg); 2825 return 0; 2826 } 2827 2828 /* CFG802.11 operation handler for sched_scan_stop. 2829 * 2830 * This function issues a bgscan config command to disable 2831 * previous bgscan configuration in the firmware 2832 */ 2833 static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy, 2834 struct net_device *dev, u64 reqid) 2835 { 2836 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2837 2838 wiphy_info(wiphy, "sched scan stop!"); 2839 mwifiex_stop_bg_scan(priv); 2840 2841 return 0; 2842 } 2843 2844 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info, 2845 struct mwifiex_private *priv) 2846 { 2847 struct mwifiex_adapter *adapter = priv->adapter; 2848 2849 vht_info->vht_supported = true; 2850 2851 vht_info->cap = adapter->hw_dot_11ac_dev_cap; 2852 /* Update MCS support for VHT */ 2853 vht_info->vht_mcs.rx_mcs_map = cpu_to_le16( 2854 adapter->hw_dot_11ac_mcs_support & 0xFFFF); 2855 vht_info->vht_mcs.rx_highest = 0; 2856 vht_info->vht_mcs.tx_mcs_map = cpu_to_le16( 2857 adapter->hw_dot_11ac_mcs_support >> 16); 2858 vht_info->vht_mcs.tx_highest = 0; 2859 } 2860 2861 /* 2862 * This function sets up the CFG802.11 specific HT capability fields 2863 * with default values. 2864 * 2865 * The following default values are set - 2866 * - HT Supported = True 2867 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K 2868 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE 2869 * - HT Capabilities supported by firmware 2870 * - MCS information, Rx mask = 0xff 2871 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01) 2872 */ 2873 static void 2874 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info, 2875 struct mwifiex_private *priv) 2876 { 2877 int rx_mcs_supp; 2878 struct ieee80211_mcs_info mcs_set; 2879 u8 *mcs = (u8 *)&mcs_set; 2880 struct mwifiex_adapter *adapter = priv->adapter; 2881 2882 ht_info->ht_supported = true; 2883 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; 2884 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; 2885 2886 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); 2887 2888 /* Fill HT capability information */ 2889 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) 2890 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 2891 else 2892 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 2893 2894 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap)) 2895 ht_info->cap |= IEEE80211_HT_CAP_SGI_20; 2896 else 2897 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20; 2898 2899 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap)) 2900 ht_info->cap |= IEEE80211_HT_CAP_SGI_40; 2901 else 2902 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40; 2903 2904 if (adapter->user_dev_mcs_support == HT_STREAM_2X2) 2905 ht_info->cap |= 2 << IEEE80211_HT_CAP_RX_STBC_SHIFT; 2906 else 2907 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT; 2908 2909 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap)) 2910 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC; 2911 else 2912 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC; 2913 2914 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap)) 2915 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD; 2916 else 2917 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD; 2918 2919 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap)) 2920 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT; 2921 else 2922 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT; 2923 2924 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap)) 2925 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING; 2926 else 2927 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING; 2928 2929 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU; 2930 ht_info->cap |= IEEE80211_HT_CAP_SM_PS; 2931 2932 rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support); 2933 /* Set MCS for 1x1/2x2 */ 2934 memset(mcs, 0xff, rx_mcs_supp); 2935 /* Clear all the other values */ 2936 memset(&mcs[rx_mcs_supp], 0, 2937 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp); 2938 if (priv->bss_mode == NL80211_IFTYPE_STATION || 2939 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) 2940 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */ 2941 SETHT_MCS32(mcs_set.rx_mask); 2942 2943 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info)); 2944 2945 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; 2946 } 2947 2948 /* 2949 * create a new virtual interface with the given name and name assign type 2950 */ 2951 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy, 2952 const char *name, 2953 unsigned char name_assign_type, 2954 enum nl80211_iftype type, 2955 struct vif_params *params) 2956 { 2957 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 2958 struct mwifiex_private *priv; 2959 struct net_device *dev; 2960 void *mdev_priv; 2961 int ret; 2962 2963 if (!adapter) 2964 return ERR_PTR(-EFAULT); 2965 2966 switch (type) { 2967 case NL80211_IFTYPE_UNSPECIFIED: 2968 case NL80211_IFTYPE_STATION: 2969 case NL80211_IFTYPE_ADHOC: 2970 if (adapter->curr_iface_comb.sta_intf == 2971 adapter->iface_limit.sta_intf) { 2972 mwifiex_dbg(adapter, ERROR, 2973 "cannot create multiple sta/adhoc ifaces\n"); 2974 return ERR_PTR(-EINVAL); 2975 } 2976 2977 priv = mwifiex_get_unused_priv_by_bss_type( 2978 adapter, MWIFIEX_BSS_TYPE_STA); 2979 if (!priv) { 2980 mwifiex_dbg(adapter, ERROR, 2981 "could not get free private struct\n"); 2982 return ERR_PTR(-EFAULT); 2983 } 2984 2985 priv->wdev.wiphy = wiphy; 2986 priv->wdev.iftype = NL80211_IFTYPE_STATION; 2987 2988 if (type == NL80211_IFTYPE_UNSPECIFIED) 2989 priv->bss_mode = NL80211_IFTYPE_STATION; 2990 else 2991 priv->bss_mode = type; 2992 2993 priv->bss_type = MWIFIEX_BSS_TYPE_STA; 2994 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 2995 priv->bss_priority = 0; 2996 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 2997 2998 break; 2999 case NL80211_IFTYPE_AP: 3000 if (adapter->curr_iface_comb.uap_intf == 3001 adapter->iface_limit.uap_intf) { 3002 mwifiex_dbg(adapter, ERROR, 3003 "cannot create multiple AP ifaces\n"); 3004 return ERR_PTR(-EINVAL); 3005 } 3006 3007 priv = mwifiex_get_unused_priv_by_bss_type( 3008 adapter, MWIFIEX_BSS_TYPE_UAP); 3009 if (!priv) { 3010 mwifiex_dbg(adapter, ERROR, 3011 "could not get free private struct\n"); 3012 return ERR_PTR(-EFAULT); 3013 } 3014 3015 priv->wdev.wiphy = wiphy; 3016 priv->wdev.iftype = NL80211_IFTYPE_AP; 3017 3018 priv->bss_type = MWIFIEX_BSS_TYPE_UAP; 3019 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 3020 priv->bss_priority = 0; 3021 priv->bss_role = MWIFIEX_BSS_ROLE_UAP; 3022 priv->bss_started = 0; 3023 priv->bss_mode = type; 3024 3025 break; 3026 case NL80211_IFTYPE_P2P_CLIENT: 3027 if (adapter->curr_iface_comb.p2p_intf == 3028 adapter->iface_limit.p2p_intf) { 3029 mwifiex_dbg(adapter, ERROR, 3030 "cannot create multiple P2P ifaces\n"); 3031 return ERR_PTR(-EINVAL); 3032 } 3033 3034 priv = mwifiex_get_unused_priv_by_bss_type( 3035 adapter, MWIFIEX_BSS_TYPE_P2P); 3036 if (!priv) { 3037 mwifiex_dbg(adapter, ERROR, 3038 "could not get free private struct\n"); 3039 return ERR_PTR(-EFAULT); 3040 } 3041 3042 priv->wdev.wiphy = wiphy; 3043 /* At start-up, wpa_supplicant tries to change the interface 3044 * to NL80211_IFTYPE_STATION if it is not managed mode. 3045 */ 3046 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT; 3047 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT; 3048 3049 /* Setting bss_type to P2P tells firmware that this interface 3050 * is receiving P2P peers found during find phase and doing 3051 * action frame handshake. 3052 */ 3053 priv->bss_type = MWIFIEX_BSS_TYPE_P2P; 3054 3055 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 3056 priv->bss_priority = 0; 3057 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 3058 priv->bss_started = 0; 3059 3060 if (mwifiex_cfg80211_init_p2p_client(priv)) { 3061 memset(&priv->wdev, 0, sizeof(priv->wdev)); 3062 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 3063 return ERR_PTR(-EFAULT); 3064 } 3065 3066 break; 3067 default: 3068 mwifiex_dbg(adapter, ERROR, "type not supported\n"); 3069 return ERR_PTR(-EINVAL); 3070 } 3071 3072 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name, 3073 name_assign_type, ether_setup, 3074 IEEE80211_NUM_ACS, 1); 3075 if (!dev) { 3076 mwifiex_dbg(adapter, ERROR, 3077 "no memory available for netdevice\n"); 3078 ret = -ENOMEM; 3079 goto err_alloc_netdev; 3080 } 3081 3082 mwifiex_init_priv_params(priv, dev); 3083 3084 priv->netdev = dev; 3085 3086 if (!adapter->mfg_mode) { 3087 mwifiex_set_mac_address(priv, dev, false, NULL); 3088 3089 ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 3090 HostCmd_ACT_GEN_SET, 0, NULL, true); 3091 if (ret) 3092 goto err_set_bss_mode; 3093 3094 ret = mwifiex_sta_init_cmd(priv, false, false); 3095 if (ret) 3096 goto err_sta_init; 3097 } 3098 3099 mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv); 3100 if (adapter->is_hw_11ac_capable) 3101 mwifiex_setup_vht_caps( 3102 &wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv); 3103 3104 if (adapter->config_bands & BAND_A) 3105 mwifiex_setup_ht_caps( 3106 &wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv); 3107 3108 if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable) 3109 mwifiex_setup_vht_caps( 3110 &wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv); 3111 3112 dev_net_set(dev, wiphy_net(wiphy)); 3113 dev->ieee80211_ptr = &priv->wdev; 3114 dev->ieee80211_ptr->iftype = priv->bss_mode; 3115 SET_NETDEV_DEV(dev, wiphy_dev(wiphy)); 3116 3117 dev->flags |= IFF_BROADCAST | IFF_MULTICAST; 3118 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT; 3119 dev->needed_headroom = MWIFIEX_MIN_DATA_HEADER_LEN; 3120 dev->ethtool_ops = &mwifiex_ethtool_ops; 3121 3122 mdev_priv = netdev_priv(dev); 3123 *((unsigned long *) mdev_priv) = (unsigned long) priv; 3124 3125 SET_NETDEV_DEV(dev, adapter->dev); 3126 3127 priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s", 3128 WQ_HIGHPRI | 3129 WQ_MEM_RECLAIM | 3130 WQ_UNBOUND, 1, name); 3131 if (!priv->dfs_cac_workqueue) { 3132 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS CAC queue\n"); 3133 ret = -ENOMEM; 3134 goto err_alloc_cac; 3135 } 3136 3137 INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue); 3138 3139 priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s", 3140 WQ_HIGHPRI | WQ_UNBOUND | 3141 WQ_MEM_RECLAIM, 1, name); 3142 if (!priv->dfs_chan_sw_workqueue) { 3143 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS channel sw queue\n"); 3144 ret = -ENOMEM; 3145 goto err_alloc_chsw; 3146 } 3147 3148 INIT_DELAYED_WORK(&priv->dfs_chan_sw_work, 3149 mwifiex_dfs_chan_sw_work_queue); 3150 3151 mutex_init(&priv->async_mutex); 3152 3153 /* Register network device */ 3154 if (cfg80211_register_netdevice(dev)) { 3155 mwifiex_dbg(adapter, ERROR, "cannot register network device\n"); 3156 ret = -EFAULT; 3157 goto err_reg_netdev; 3158 } 3159 3160 mwifiex_dbg(adapter, INFO, 3161 "info: %s: Marvell 802.11 Adapter\n", dev->name); 3162 3163 #ifdef CONFIG_DEBUG_FS 3164 mwifiex_dev_debugfs_init(priv); 3165 #endif 3166 3167 update_vif_type_counter(adapter, type, +1); 3168 3169 return &priv->wdev; 3170 3171 err_reg_netdev: 3172 destroy_workqueue(priv->dfs_chan_sw_workqueue); 3173 priv->dfs_chan_sw_workqueue = NULL; 3174 err_alloc_chsw: 3175 destroy_workqueue(priv->dfs_cac_workqueue); 3176 priv->dfs_cac_workqueue = NULL; 3177 err_alloc_cac: 3178 free_netdev(dev); 3179 priv->netdev = NULL; 3180 err_sta_init: 3181 err_set_bss_mode: 3182 err_alloc_netdev: 3183 memset(&priv->wdev, 0, sizeof(priv->wdev)); 3184 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 3185 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; 3186 return ERR_PTR(ret); 3187 } 3188 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf); 3189 3190 /* 3191 * del_virtual_intf: remove the virtual interface determined by dev 3192 */ 3193 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) 3194 { 3195 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 3196 struct mwifiex_adapter *adapter = priv->adapter; 3197 struct sk_buff *skb, *tmp; 3198 3199 #ifdef CONFIG_DEBUG_FS 3200 mwifiex_dev_debugfs_remove(priv); 3201 #endif 3202 3203 if (priv->sched_scanning) 3204 priv->sched_scanning = false; 3205 3206 mwifiex_stop_net_dev_queue(priv->netdev, adapter); 3207 3208 skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) { 3209 skb_unlink(skb, &priv->bypass_txq); 3210 mwifiex_write_data_complete(priv->adapter, skb, 0, -1); 3211 } 3212 3213 if (netif_carrier_ok(priv->netdev)) 3214 netif_carrier_off(priv->netdev); 3215 3216 if (wdev->netdev->reg_state == NETREG_REGISTERED) 3217 cfg80211_unregister_netdevice(wdev->netdev); 3218 3219 if (priv->dfs_cac_workqueue) { 3220 destroy_workqueue(priv->dfs_cac_workqueue); 3221 priv->dfs_cac_workqueue = NULL; 3222 } 3223 3224 if (priv->dfs_chan_sw_workqueue) { 3225 destroy_workqueue(priv->dfs_chan_sw_workqueue); 3226 priv->dfs_chan_sw_workqueue = NULL; 3227 } 3228 /* Clear the priv in adapter */ 3229 priv->netdev = NULL; 3230 3231 update_vif_type_counter(adapter, priv->bss_mode, -1); 3232 3233 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; 3234 3235 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA || 3236 GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) 3237 kfree(priv->hist_data); 3238 3239 return 0; 3240 } 3241 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf); 3242 3243 static bool 3244 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq, 3245 u8 max_byte_seq) 3246 { 3247 int j, k, valid_byte_cnt = 0; 3248 bool dont_care_byte = false; 3249 3250 for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) { 3251 for (k = 0; k < 8; k++) { 3252 if (pat->mask[j] & 1 << k) { 3253 memcpy(byte_seq + valid_byte_cnt, 3254 &pat->pattern[j * 8 + k], 1); 3255 valid_byte_cnt++; 3256 if (dont_care_byte) 3257 return false; 3258 } else { 3259 if (valid_byte_cnt) 3260 dont_care_byte = true; 3261 } 3262 3263 /* wildcard bytes record as the offset 3264 * before the valid byte 3265 */ 3266 if (!valid_byte_cnt && !dont_care_byte) 3267 pat->pkt_offset++; 3268 3269 if (valid_byte_cnt > max_byte_seq) 3270 return false; 3271 } 3272 } 3273 3274 byte_seq[max_byte_seq] = valid_byte_cnt; 3275 3276 return true; 3277 } 3278 3279 #ifdef CONFIG_PM 3280 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv, 3281 struct mwifiex_mef_entry *mef_entry) 3282 { 3283 int i, filt_num = 0, num_ipv4 = 0; 3284 struct in_device *in_dev; 3285 struct in_ifaddr *ifa; 3286 __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR]; 3287 struct mwifiex_adapter *adapter = priv->adapter; 3288 3289 mef_entry->mode = MEF_MODE_HOST_SLEEP; 3290 mef_entry->action = MEF_ACTION_AUTO_ARP; 3291 3292 /* Enable ARP offload feature */ 3293 memset(ips, 0, sizeof(ips)); 3294 for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) { 3295 if (adapter->priv[i]->netdev) { 3296 in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev); 3297 if (!in_dev) 3298 continue; 3299 ifa = rtnl_dereference(in_dev->ifa_list); 3300 if (!ifa || !ifa->ifa_local) 3301 continue; 3302 ips[i] = ifa->ifa_local; 3303 num_ipv4++; 3304 } 3305 } 3306 3307 for (i = 0; i < num_ipv4; i++) { 3308 if (!ips[i]) 3309 continue; 3310 mef_entry->filter[filt_num].repeat = 1; 3311 memcpy(mef_entry->filter[filt_num].byte_seq, 3312 (u8 *)&ips[i], sizeof(ips[i])); 3313 mef_entry->filter[filt_num]. 3314 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3315 sizeof(ips[i]); 3316 mef_entry->filter[filt_num].offset = 46; 3317 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3318 if (filt_num) { 3319 mef_entry->filter[filt_num].filt_action = 3320 TYPE_OR; 3321 } 3322 filt_num++; 3323 } 3324 3325 mef_entry->filter[filt_num].repeat = 1; 3326 mef_entry->filter[filt_num].byte_seq[0] = 0x08; 3327 mef_entry->filter[filt_num].byte_seq[1] = 0x06; 3328 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2; 3329 mef_entry->filter[filt_num].offset = 20; 3330 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3331 mef_entry->filter[filt_num].filt_action = TYPE_AND; 3332 } 3333 3334 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv, 3335 struct mwifiex_ds_mef_cfg *mef_cfg, 3336 struct mwifiex_mef_entry *mef_entry, 3337 struct cfg80211_wowlan *wowlan) 3338 { 3339 int i, filt_num = 0, ret = 0; 3340 bool first_pat = true; 3341 u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1]; 3342 static const u8 ipv4_mc_mac[] = {0x33, 0x33}; 3343 static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e}; 3344 3345 mef_entry->mode = MEF_MODE_HOST_SLEEP; 3346 mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST; 3347 3348 for (i = 0; i < wowlan->n_patterns; i++) { 3349 memset(byte_seq, 0, sizeof(byte_seq)); 3350 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i], 3351 byte_seq, 3352 MWIFIEX_MEF_MAX_BYTESEQ)) { 3353 mwifiex_dbg(priv->adapter, ERROR, 3354 "Pattern not supported\n"); 3355 return -EOPNOTSUPP; 3356 } 3357 3358 if (!wowlan->patterns[i].pkt_offset) { 3359 if (!(byte_seq[0] & 0x01) && 3360 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) { 3361 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST; 3362 continue; 3363 } else if (is_broadcast_ether_addr(byte_seq)) { 3364 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST; 3365 continue; 3366 } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) && 3367 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) || 3368 (!memcmp(byte_seq, ipv6_mc_mac, 3) && 3369 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) { 3370 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST; 3371 continue; 3372 } 3373 } 3374 mef_entry->filter[filt_num].repeat = 1; 3375 mef_entry->filter[filt_num].offset = 3376 wowlan->patterns[i].pkt_offset; 3377 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq, 3378 sizeof(byte_seq)); 3379 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3380 3381 if (first_pat) { 3382 first_pat = false; 3383 mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n"); 3384 } else { 3385 mef_entry->filter[filt_num].filt_action = TYPE_AND; 3386 } 3387 3388 filt_num++; 3389 } 3390 3391 if (wowlan->magic_pkt) { 3392 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST; 3393 mef_entry->filter[filt_num].repeat = 16; 3394 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr, 3395 ETH_ALEN); 3396 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3397 ETH_ALEN; 3398 mef_entry->filter[filt_num].offset = 28; 3399 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3400 if (filt_num) 3401 mef_entry->filter[filt_num].filt_action = TYPE_OR; 3402 3403 filt_num++; 3404 mef_entry->filter[filt_num].repeat = 16; 3405 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr, 3406 ETH_ALEN); 3407 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3408 ETH_ALEN; 3409 mef_entry->filter[filt_num].offset = 56; 3410 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3411 mef_entry->filter[filt_num].filt_action = TYPE_OR; 3412 mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n"); 3413 } 3414 return ret; 3415 } 3416 3417 static int mwifiex_set_mef_filter(struct mwifiex_private *priv, 3418 struct cfg80211_wowlan *wowlan) 3419 { 3420 int ret = 0, num_entries = 1; 3421 struct mwifiex_ds_mef_cfg mef_cfg; 3422 struct mwifiex_mef_entry *mef_entry; 3423 3424 if (wowlan->n_patterns || wowlan->magic_pkt) 3425 num_entries++; 3426 3427 mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL); 3428 if (!mef_entry) 3429 return -ENOMEM; 3430 3431 memset(&mef_cfg, 0, sizeof(mef_cfg)); 3432 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST | 3433 MWIFIEX_CRITERIA_UNICAST; 3434 mef_cfg.num_entries = num_entries; 3435 mef_cfg.mef_entry = mef_entry; 3436 3437 mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]); 3438 3439 if (wowlan->n_patterns || wowlan->magic_pkt) { 3440 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg, 3441 &mef_entry[1], wowlan); 3442 if (ret) 3443 goto err; 3444 } 3445 3446 if (!mef_cfg.criteria) 3447 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST | 3448 MWIFIEX_CRITERIA_UNICAST | 3449 MWIFIEX_CRITERIA_MULTICAST; 3450 3451 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG, 3452 HostCmd_ACT_GEN_SET, 0, 3453 &mef_cfg, true); 3454 3455 err: 3456 kfree(mef_entry); 3457 return ret; 3458 } 3459 3460 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy, 3461 struct cfg80211_wowlan *wowlan) 3462 { 3463 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3464 struct mwifiex_ds_hs_cfg hs_cfg; 3465 int i, ret = 0, retry_num = 10; 3466 struct mwifiex_private *priv; 3467 struct mwifiex_private *sta_priv = 3468 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3469 3470 sta_priv->scan_aborting = true; 3471 for (i = 0; i < adapter->priv_num; i++) { 3472 priv = adapter->priv[i]; 3473 mwifiex_abort_cac(priv); 3474 } 3475 3476 mwifiex_cancel_all_pending_cmd(adapter); 3477 3478 for (i = 0; i < adapter->priv_num; i++) { 3479 priv = adapter->priv[i]; 3480 if (priv && priv->netdev) 3481 netif_device_detach(priv->netdev); 3482 } 3483 3484 for (i = 0; i < retry_num; i++) { 3485 if (!mwifiex_wmm_lists_empty(adapter) || 3486 !mwifiex_bypass_txlist_empty(adapter) || 3487 !skb_queue_empty(&adapter->tx_data_q)) 3488 usleep_range(10000, 15000); 3489 else 3490 break; 3491 } 3492 3493 if (!wowlan) { 3494 mwifiex_dbg(adapter, INFO, 3495 "None of the WOWLAN triggers enabled\n"); 3496 ret = 0; 3497 goto done; 3498 } 3499 3500 if (!sta_priv->media_connected && !wowlan->nd_config) { 3501 mwifiex_dbg(adapter, ERROR, 3502 "Can not configure WOWLAN in disconnected state\n"); 3503 ret = 0; 3504 goto done; 3505 } 3506 3507 ret = mwifiex_set_mef_filter(sta_priv, wowlan); 3508 if (ret) { 3509 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n"); 3510 goto done; 3511 } 3512 3513 memset(&hs_cfg, 0, sizeof(hs_cfg)); 3514 hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions); 3515 3516 if (wowlan->nd_config) { 3517 mwifiex_dbg(adapter, INFO, "Wake on net detect\n"); 3518 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT; 3519 mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev, 3520 wowlan->nd_config); 3521 } 3522 3523 if (wowlan->disconnect) { 3524 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT; 3525 mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n"); 3526 } 3527 3528 hs_cfg.is_invoke_hostcmd = false; 3529 hs_cfg.gpio = adapter->hs_cfg.gpio; 3530 hs_cfg.gap = adapter->hs_cfg.gap; 3531 ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET, 3532 MWIFIEX_SYNC_CMD, &hs_cfg); 3533 if (ret) 3534 mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n"); 3535 3536 done: 3537 sta_priv->scan_aborting = false; 3538 return ret; 3539 } 3540 3541 static int mwifiex_cfg80211_resume(struct wiphy *wiphy) 3542 { 3543 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3544 struct mwifiex_private *priv; 3545 struct mwifiex_ds_wakeup_reason wakeup_reason; 3546 struct cfg80211_wowlan_wakeup wakeup_report; 3547 int i; 3548 bool report_wakeup_reason = true; 3549 3550 for (i = 0; i < adapter->priv_num; i++) { 3551 priv = adapter->priv[i]; 3552 if (priv && priv->netdev) 3553 netif_device_attach(priv->netdev); 3554 } 3555 3556 if (!wiphy->wowlan_config) 3557 goto done; 3558 3559 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3560 mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD, 3561 &wakeup_reason); 3562 memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup)); 3563 3564 wakeup_report.pattern_idx = -1; 3565 3566 switch (wakeup_reason.hs_wakeup_reason) { 3567 case NO_HSWAKEUP_REASON: 3568 break; 3569 case BCAST_DATA_MATCHED: 3570 break; 3571 case MCAST_DATA_MATCHED: 3572 break; 3573 case UCAST_DATA_MATCHED: 3574 break; 3575 case MASKTABLE_EVENT_MATCHED: 3576 break; 3577 case NON_MASKABLE_EVENT_MATCHED: 3578 if (wiphy->wowlan_config->disconnect) 3579 wakeup_report.disconnect = true; 3580 if (wiphy->wowlan_config->nd_config) 3581 wakeup_report.net_detect = adapter->nd_info; 3582 break; 3583 case NON_MASKABLE_CONDITION_MATCHED: 3584 break; 3585 case MAGIC_PATTERN_MATCHED: 3586 if (wiphy->wowlan_config->magic_pkt) 3587 wakeup_report.magic_pkt = true; 3588 if (wiphy->wowlan_config->n_patterns) 3589 wakeup_report.pattern_idx = 1; 3590 break; 3591 case GTK_REKEY_FAILURE: 3592 if (wiphy->wowlan_config->gtk_rekey_failure) 3593 wakeup_report.gtk_rekey_failure = true; 3594 break; 3595 default: 3596 report_wakeup_reason = false; 3597 break; 3598 } 3599 3600 if (report_wakeup_reason) 3601 cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report, 3602 GFP_KERNEL); 3603 3604 done: 3605 if (adapter->nd_info) { 3606 for (i = 0 ; i < adapter->nd_info->n_matches ; i++) 3607 kfree(adapter->nd_info->matches[i]); 3608 kfree(adapter->nd_info); 3609 adapter->nd_info = NULL; 3610 } 3611 3612 return 0; 3613 } 3614 3615 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy, 3616 bool enabled) 3617 { 3618 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3619 3620 device_set_wakeup_enable(adapter->dev, enabled); 3621 } 3622 3623 static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev, 3624 struct cfg80211_gtk_rekey_data *data) 3625 { 3626 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3627 3628 if (!ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info)) 3629 return -EOPNOTSUPP; 3630 3631 return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG, 3632 HostCmd_ACT_GEN_SET, 0, data, true); 3633 } 3634 3635 #endif 3636 3637 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq) 3638 { 3639 static const u8 ipv4_mc_mac[] = {0x33, 0x33}; 3640 static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e}; 3641 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff}; 3642 3643 if ((byte_seq[0] & 0x01) && 3644 (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1)) 3645 return PACKET_TYPE_UNICAST; 3646 else if (!memcmp(byte_seq, bc_mac, 4)) 3647 return PACKET_TYPE_BROADCAST; 3648 else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) && 3649 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) || 3650 (!memcmp(byte_seq, ipv6_mc_mac, 3) && 3651 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3)) 3652 return PACKET_TYPE_MULTICAST; 3653 3654 return 0; 3655 } 3656 3657 static int 3658 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv, 3659 struct cfg80211_coalesce_rules *crule, 3660 struct mwifiex_coalesce_rule *mrule) 3661 { 3662 u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1]; 3663 struct filt_field_param *param; 3664 int i; 3665 3666 mrule->max_coalescing_delay = crule->delay; 3667 3668 param = mrule->params; 3669 3670 for (i = 0; i < crule->n_patterns; i++) { 3671 memset(byte_seq, 0, sizeof(byte_seq)); 3672 if (!mwifiex_is_pattern_supported(&crule->patterns[i], 3673 byte_seq, 3674 MWIFIEX_COALESCE_MAX_BYTESEQ)) { 3675 mwifiex_dbg(priv->adapter, ERROR, 3676 "Pattern not supported\n"); 3677 return -EOPNOTSUPP; 3678 } 3679 3680 if (!crule->patterns[i].pkt_offset) { 3681 u8 pkt_type; 3682 3683 pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq); 3684 if (pkt_type && mrule->pkt_type) { 3685 mwifiex_dbg(priv->adapter, ERROR, 3686 "Multiple packet types not allowed\n"); 3687 return -EOPNOTSUPP; 3688 } else if (pkt_type) { 3689 mrule->pkt_type = pkt_type; 3690 continue; 3691 } 3692 } 3693 3694 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH) 3695 param->operation = RECV_FILTER_MATCH_TYPE_EQ; 3696 else 3697 param->operation = RECV_FILTER_MATCH_TYPE_NE; 3698 3699 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ]; 3700 memcpy(param->operand_byte_stream, byte_seq, 3701 param->operand_len); 3702 param->offset = crule->patterns[i].pkt_offset; 3703 param++; 3704 3705 mrule->num_of_fields++; 3706 } 3707 3708 if (!mrule->pkt_type) { 3709 mwifiex_dbg(priv->adapter, ERROR, 3710 "Packet type can not be determined\n"); 3711 return -EOPNOTSUPP; 3712 } 3713 3714 return 0; 3715 } 3716 3717 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy, 3718 struct cfg80211_coalesce *coalesce) 3719 { 3720 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3721 int i, ret; 3722 struct mwifiex_ds_coalesce_cfg coalesce_cfg; 3723 struct mwifiex_private *priv = 3724 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3725 3726 memset(&coalesce_cfg, 0, sizeof(coalesce_cfg)); 3727 if (!coalesce) { 3728 mwifiex_dbg(adapter, WARN, 3729 "Disable coalesce and reset all previous rules\n"); 3730 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG, 3731 HostCmd_ACT_GEN_SET, 0, 3732 &coalesce_cfg, true); 3733 } 3734 3735 coalesce_cfg.num_of_rules = coalesce->n_rules; 3736 for (i = 0; i < coalesce->n_rules; i++) { 3737 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i], 3738 &coalesce_cfg.rule[i]); 3739 if (ret) { 3740 mwifiex_dbg(adapter, ERROR, 3741 "Recheck the patterns provided for rule %d\n", 3742 i + 1); 3743 return ret; 3744 } 3745 } 3746 3747 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG, 3748 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true); 3749 } 3750 3751 /* cfg80211 ops handler for tdls_mgmt. 3752 * Function prepares TDLS action frame packets and forwards them to FW 3753 */ 3754 static int 3755 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 3756 const u8 *peer, u8 action_code, u8 dialog_token, 3757 u16 status_code, u32 peer_capability, 3758 bool initiator, const u8 *extra_ies, 3759 size_t extra_ies_len) 3760 { 3761 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3762 int ret; 3763 3764 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) 3765 return -EOPNOTSUPP; 3766 3767 /* make sure we are in station mode and connected */ 3768 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected)) 3769 return -EOPNOTSUPP; 3770 3771 switch (action_code) { 3772 case WLAN_TDLS_SETUP_REQUEST: 3773 mwifiex_dbg(priv->adapter, MSG, 3774 "Send TDLS Setup Request to %pM status_code=%d\n", 3775 peer, status_code); 3776 mwifiex_add_auto_tdls_peer(priv, peer); 3777 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3778 dialog_token, status_code, 3779 extra_ies, extra_ies_len); 3780 break; 3781 case WLAN_TDLS_SETUP_RESPONSE: 3782 mwifiex_add_auto_tdls_peer(priv, peer); 3783 mwifiex_dbg(priv->adapter, MSG, 3784 "Send TDLS Setup Response to %pM status_code=%d\n", 3785 peer, status_code); 3786 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3787 dialog_token, status_code, 3788 extra_ies, extra_ies_len); 3789 break; 3790 case WLAN_TDLS_SETUP_CONFIRM: 3791 mwifiex_dbg(priv->adapter, MSG, 3792 "Send TDLS Confirm to %pM status_code=%d\n", peer, 3793 status_code); 3794 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3795 dialog_token, status_code, 3796 extra_ies, extra_ies_len); 3797 break; 3798 case WLAN_TDLS_TEARDOWN: 3799 mwifiex_dbg(priv->adapter, MSG, 3800 "Send TDLS Tear down to %pM\n", peer); 3801 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3802 dialog_token, status_code, 3803 extra_ies, extra_ies_len); 3804 break; 3805 case WLAN_TDLS_DISCOVERY_REQUEST: 3806 mwifiex_dbg(priv->adapter, MSG, 3807 "Send TDLS Discovery Request to %pM\n", peer); 3808 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3809 dialog_token, status_code, 3810 extra_ies, extra_ies_len); 3811 break; 3812 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: 3813 mwifiex_dbg(priv->adapter, MSG, 3814 "Send TDLS Discovery Response to %pM\n", peer); 3815 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code, 3816 dialog_token, status_code, 3817 extra_ies, extra_ies_len); 3818 break; 3819 default: 3820 mwifiex_dbg(priv->adapter, ERROR, 3821 "Unknown TDLS mgmt/action frame %pM\n", peer); 3822 ret = -EINVAL; 3823 break; 3824 } 3825 3826 return ret; 3827 } 3828 3829 static int 3830 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 3831 const u8 *peer, enum nl80211_tdls_operation action) 3832 { 3833 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3834 3835 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) || 3836 !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)) 3837 return -EOPNOTSUPP; 3838 3839 /* make sure we are in station mode and connected */ 3840 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected)) 3841 return -EOPNOTSUPP; 3842 3843 mwifiex_dbg(priv->adapter, MSG, 3844 "TDLS peer=%pM, oper=%d\n", peer, action); 3845 3846 switch (action) { 3847 case NL80211_TDLS_ENABLE_LINK: 3848 action = MWIFIEX_TDLS_ENABLE_LINK; 3849 break; 3850 case NL80211_TDLS_DISABLE_LINK: 3851 action = MWIFIEX_TDLS_DISABLE_LINK; 3852 break; 3853 case NL80211_TDLS_TEARDOWN: 3854 /* shouldn't happen!*/ 3855 mwifiex_dbg(priv->adapter, ERROR, 3856 "tdls_oper: teardown from driver not supported\n"); 3857 return -EINVAL; 3858 case NL80211_TDLS_SETUP: 3859 /* shouldn't happen!*/ 3860 mwifiex_dbg(priv->adapter, ERROR, 3861 "tdls_oper: setup from driver not supported\n"); 3862 return -EINVAL; 3863 case NL80211_TDLS_DISCOVERY_REQ: 3864 /* shouldn't happen!*/ 3865 mwifiex_dbg(priv->adapter, ERROR, 3866 "tdls_oper: discovery from driver not supported\n"); 3867 return -EINVAL; 3868 default: 3869 mwifiex_dbg(priv->adapter, ERROR, 3870 "tdls_oper: operation not supported\n"); 3871 return -EOPNOTSUPP; 3872 } 3873 3874 return mwifiex_tdls_oper(priv, peer, action); 3875 } 3876 3877 static int 3878 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev, 3879 const u8 *addr, u8 oper_class, 3880 struct cfg80211_chan_def *chandef) 3881 { 3882 struct mwifiex_sta_node *sta_ptr; 3883 u16 chan; 3884 u8 second_chan_offset, band; 3885 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3886 3887 spin_lock_bh(&priv->sta_list_spinlock); 3888 sta_ptr = mwifiex_get_sta_entry(priv, addr); 3889 if (!sta_ptr) { 3890 spin_unlock_bh(&priv->sta_list_spinlock); 3891 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n", 3892 __func__, addr); 3893 return -ENOENT; 3894 } 3895 3896 if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] & 3897 WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) { 3898 spin_unlock_bh(&priv->sta_list_spinlock); 3899 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr); 3900 return -ENOENT; 3901 } 3902 3903 if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING || 3904 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) { 3905 spin_unlock_bh(&priv->sta_list_spinlock); 3906 wiphy_err(wiphy, "channel switch is running, abort request\n"); 3907 return -EALREADY; 3908 } 3909 spin_unlock_bh(&priv->sta_list_spinlock); 3910 3911 chan = chandef->chan->hw_value; 3912 second_chan_offset = mwifiex_get_sec_chan_offset(chan); 3913 band = chandef->chan->band; 3914 mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band); 3915 3916 return 0; 3917 } 3918 3919 static void 3920 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy, 3921 struct net_device *dev, 3922 const u8 *addr) 3923 { 3924 struct mwifiex_sta_node *sta_ptr; 3925 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3926 3927 spin_lock_bh(&priv->sta_list_spinlock); 3928 sta_ptr = mwifiex_get_sta_entry(priv, addr); 3929 if (!sta_ptr) { 3930 spin_unlock_bh(&priv->sta_list_spinlock); 3931 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n", 3932 __func__, addr); 3933 } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING || 3934 sta_ptr->tdls_status == TDLS_IN_BASE_CHAN || 3935 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) { 3936 spin_unlock_bh(&priv->sta_list_spinlock); 3937 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n", 3938 addr); 3939 } else { 3940 spin_unlock_bh(&priv->sta_list_spinlock); 3941 mwifiex_stop_tdls_cs(priv, addr); 3942 } 3943 } 3944 3945 static int 3946 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev, 3947 const u8 *mac, struct station_parameters *params) 3948 { 3949 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3950 3951 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) 3952 return -EOPNOTSUPP; 3953 3954 /* make sure we are in station mode and connected */ 3955 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected) 3956 return -EOPNOTSUPP; 3957 3958 return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK); 3959 } 3960 3961 static int 3962 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3963 struct cfg80211_csa_settings *params) 3964 { 3965 struct ieee_types_header *chsw_ie; 3966 struct ieee80211_channel_sw_ie *channel_sw; 3967 int chsw_msec; 3968 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3969 3970 if (priv->adapter->scan_processing) { 3971 mwifiex_dbg(priv->adapter, ERROR, 3972 "radar detection: scan in process...\n"); 3973 return -EBUSY; 3974 } 3975 3976 if (priv->wdev.cac_started) 3977 return -EBUSY; 3978 3979 if (cfg80211_chandef_identical(¶ms->chandef, 3980 &priv->dfs_chandef)) 3981 return -EINVAL; 3982 3983 chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH, 3984 params->beacon_csa.tail, 3985 params->beacon_csa.tail_len); 3986 if (!chsw_ie) { 3987 mwifiex_dbg(priv->adapter, ERROR, 3988 "Could not parse channel switch announcement IE\n"); 3989 return -EINVAL; 3990 } 3991 3992 channel_sw = (void *)(chsw_ie + 1); 3993 if (channel_sw->mode) { 3994 if (netif_carrier_ok(priv->netdev)) 3995 netif_carrier_off(priv->netdev); 3996 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter); 3997 } 3998 3999 if (mwifiex_del_mgmt_ies(priv)) 4000 mwifiex_dbg(priv->adapter, ERROR, 4001 "Failed to delete mgmt IEs!\n"); 4002 4003 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon_csa)) { 4004 mwifiex_dbg(priv->adapter, ERROR, 4005 "%s: setting mgmt ies failed\n", __func__); 4006 return -EFAULT; 4007 } 4008 4009 memcpy(&priv->dfs_chandef, ¶ms->chandef, sizeof(priv->dfs_chandef)); 4010 memcpy(&priv->beacon_after, ¶ms->beacon_after, 4011 sizeof(priv->beacon_after)); 4012 4013 chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100); 4014 queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work, 4015 msecs_to_jiffies(chsw_msec)); 4016 return 0; 4017 } 4018 4019 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy, 4020 struct wireless_dev *wdev, 4021 unsigned int link_id, 4022 struct cfg80211_chan_def *chandef) 4023 { 4024 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 4025 struct mwifiex_bssdescriptor *curr_bss; 4026 struct ieee80211_channel *chan; 4027 enum nl80211_channel_type chan_type; 4028 enum nl80211_band band; 4029 int freq; 4030 int ret = -ENODATA; 4031 4032 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP && 4033 cfg80211_chandef_valid(&priv->bss_chandef)) { 4034 *chandef = priv->bss_chandef; 4035 ret = 0; 4036 } else if (priv->media_connected) { 4037 curr_bss = &priv->curr_bss_params.bss_descriptor; 4038 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 4039 freq = ieee80211_channel_to_frequency(curr_bss->channel, band); 4040 chan = ieee80211_get_channel(wiphy, freq); 4041 4042 if (priv->ht_param_present) { 4043 chan_type = mwifiex_get_chan_type(priv); 4044 cfg80211_chandef_create(chandef, chan, chan_type); 4045 } else { 4046 cfg80211_chandef_create(chandef, chan, 4047 NL80211_CHAN_NO_HT); 4048 } 4049 ret = 0; 4050 } 4051 4052 return ret; 4053 } 4054 4055 #ifdef CONFIG_NL80211_TESTMODE 4056 4057 enum mwifiex_tm_attr { 4058 __MWIFIEX_TM_ATTR_INVALID = 0, 4059 MWIFIEX_TM_ATTR_CMD = 1, 4060 MWIFIEX_TM_ATTR_DATA = 2, 4061 4062 /* keep last */ 4063 __MWIFIEX_TM_ATTR_AFTER_LAST, 4064 MWIFIEX_TM_ATTR_MAX = __MWIFIEX_TM_ATTR_AFTER_LAST - 1, 4065 }; 4066 4067 static const struct nla_policy mwifiex_tm_policy[MWIFIEX_TM_ATTR_MAX + 1] = { 4068 [MWIFIEX_TM_ATTR_CMD] = { .type = NLA_U32 }, 4069 [MWIFIEX_TM_ATTR_DATA] = { .type = NLA_BINARY, 4070 .len = MWIFIEX_SIZE_OF_CMD_BUFFER }, 4071 }; 4072 4073 enum mwifiex_tm_command { 4074 MWIFIEX_TM_CMD_HOSTCMD = 0, 4075 }; 4076 4077 static int mwifiex_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev, 4078 void *data, int len) 4079 { 4080 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 4081 struct mwifiex_ds_misc_cmd *hostcmd; 4082 struct nlattr *tb[MWIFIEX_TM_ATTR_MAX + 1]; 4083 struct sk_buff *skb; 4084 int err; 4085 4086 if (!priv) 4087 return -EINVAL; 4088 4089 err = nla_parse_deprecated(tb, MWIFIEX_TM_ATTR_MAX, data, len, 4090 mwifiex_tm_policy, NULL); 4091 if (err) 4092 return err; 4093 4094 if (!tb[MWIFIEX_TM_ATTR_CMD]) 4095 return -EINVAL; 4096 4097 switch (nla_get_u32(tb[MWIFIEX_TM_ATTR_CMD])) { 4098 case MWIFIEX_TM_CMD_HOSTCMD: 4099 if (!tb[MWIFIEX_TM_ATTR_DATA]) 4100 return -EINVAL; 4101 4102 hostcmd = kzalloc(sizeof(*hostcmd), GFP_KERNEL); 4103 if (!hostcmd) 4104 return -ENOMEM; 4105 4106 hostcmd->len = nla_len(tb[MWIFIEX_TM_ATTR_DATA]); 4107 memcpy(hostcmd->cmd, nla_data(tb[MWIFIEX_TM_ATTR_DATA]), 4108 hostcmd->len); 4109 4110 if (mwifiex_send_cmd(priv, 0, 0, 0, hostcmd, true)) { 4111 dev_err(priv->adapter->dev, "Failed to process hostcmd\n"); 4112 kfree(hostcmd); 4113 return -EFAULT; 4114 } 4115 4116 /* process hostcmd response*/ 4117 skb = cfg80211_testmode_alloc_reply_skb(wiphy, hostcmd->len); 4118 if (!skb) { 4119 kfree(hostcmd); 4120 return -ENOMEM; 4121 } 4122 err = nla_put(skb, MWIFIEX_TM_ATTR_DATA, 4123 hostcmd->len, hostcmd->cmd); 4124 if (err) { 4125 kfree(hostcmd); 4126 kfree_skb(skb); 4127 return -EMSGSIZE; 4128 } 4129 4130 err = cfg80211_testmode_reply(skb); 4131 kfree(hostcmd); 4132 return err; 4133 default: 4134 return -EOPNOTSUPP; 4135 } 4136 } 4137 #endif 4138 4139 static int 4140 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy, 4141 struct net_device *dev, 4142 struct cfg80211_chan_def *chandef, 4143 u32 cac_time_ms) 4144 { 4145 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 4146 struct mwifiex_radar_params radar_params; 4147 4148 if (priv->adapter->scan_processing) { 4149 mwifiex_dbg(priv->adapter, ERROR, 4150 "radar detection: scan already in process...\n"); 4151 return -EBUSY; 4152 } 4153 4154 if (!mwifiex_is_11h_active(priv)) { 4155 mwifiex_dbg(priv->adapter, INFO, 4156 "Enable 11h extensions in FW\n"); 4157 if (mwifiex_11h_activate(priv, true)) { 4158 mwifiex_dbg(priv->adapter, ERROR, 4159 "Failed to activate 11h extensions!!"); 4160 return -1; 4161 } 4162 priv->state_11h.is_11h_active = true; 4163 } 4164 4165 memset(&radar_params, 0, sizeof(struct mwifiex_radar_params)); 4166 radar_params.chandef = chandef; 4167 radar_params.cac_time_ms = cac_time_ms; 4168 4169 memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef)); 4170 4171 if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST, 4172 HostCmd_ACT_GEN_SET, 0, &radar_params, true)) 4173 return -1; 4174 4175 queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work, 4176 msecs_to_jiffies(cac_time_ms)); 4177 return 0; 4178 } 4179 4180 static int 4181 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev, 4182 const u8 *mac, 4183 struct station_parameters *params) 4184 { 4185 int ret; 4186 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 4187 4188 /* we support change_station handler only for TDLS peers*/ 4189 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) 4190 return -EOPNOTSUPP; 4191 4192 /* make sure we are in station mode and connected */ 4193 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected) 4194 return -EOPNOTSUPP; 4195 4196 priv->sta_params = params; 4197 4198 ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK); 4199 priv->sta_params = NULL; 4200 4201 return ret; 4202 } 4203 4204 /* station cfg80211 operations */ 4205 static struct cfg80211_ops mwifiex_cfg80211_ops = { 4206 .add_virtual_intf = mwifiex_add_virtual_intf, 4207 .del_virtual_intf = mwifiex_del_virtual_intf, 4208 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf, 4209 .scan = mwifiex_cfg80211_scan, 4210 .connect = mwifiex_cfg80211_connect, 4211 .disconnect = mwifiex_cfg80211_disconnect, 4212 .get_station = mwifiex_cfg80211_get_station, 4213 .dump_station = mwifiex_cfg80211_dump_station, 4214 .dump_survey = mwifiex_cfg80211_dump_survey, 4215 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params, 4216 .join_ibss = mwifiex_cfg80211_join_ibss, 4217 .leave_ibss = mwifiex_cfg80211_leave_ibss, 4218 .add_key = mwifiex_cfg80211_add_key, 4219 .del_key = mwifiex_cfg80211_del_key, 4220 .set_default_mgmt_key = mwifiex_cfg80211_set_default_mgmt_key, 4221 .mgmt_tx = mwifiex_cfg80211_mgmt_tx, 4222 .update_mgmt_frame_registrations = 4223 mwifiex_cfg80211_update_mgmt_frame_registrations, 4224 .remain_on_channel = mwifiex_cfg80211_remain_on_channel, 4225 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel, 4226 .set_default_key = mwifiex_cfg80211_set_default_key, 4227 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt, 4228 .set_tx_power = mwifiex_cfg80211_set_tx_power, 4229 .get_tx_power = mwifiex_cfg80211_get_tx_power, 4230 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask, 4231 .start_ap = mwifiex_cfg80211_start_ap, 4232 .stop_ap = mwifiex_cfg80211_stop_ap, 4233 .change_beacon = mwifiex_cfg80211_change_beacon, 4234 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config, 4235 .set_antenna = mwifiex_cfg80211_set_antenna, 4236 .get_antenna = mwifiex_cfg80211_get_antenna, 4237 .del_station = mwifiex_cfg80211_del_station, 4238 .sched_scan_start = mwifiex_cfg80211_sched_scan_start, 4239 .sched_scan_stop = mwifiex_cfg80211_sched_scan_stop, 4240 #ifdef CONFIG_PM 4241 .suspend = mwifiex_cfg80211_suspend, 4242 .resume = mwifiex_cfg80211_resume, 4243 .set_wakeup = mwifiex_cfg80211_set_wakeup, 4244 .set_rekey_data = mwifiex_set_rekey_data, 4245 #endif 4246 .set_coalesce = mwifiex_cfg80211_set_coalesce, 4247 .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt, 4248 .tdls_oper = mwifiex_cfg80211_tdls_oper, 4249 .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch, 4250 .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch, 4251 .add_station = mwifiex_cfg80211_add_station, 4252 .change_station = mwifiex_cfg80211_change_station, 4253 CFG80211_TESTMODE_CMD(mwifiex_tm_cmd) 4254 .get_channel = mwifiex_cfg80211_get_channel, 4255 .start_radar_detection = mwifiex_cfg80211_start_radar_detection, 4256 .channel_switch = mwifiex_cfg80211_channel_switch, 4257 }; 4258 4259 #ifdef CONFIG_PM 4260 static const struct wiphy_wowlan_support mwifiex_wowlan_support = { 4261 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT | 4262 WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 4263 WIPHY_WOWLAN_GTK_REKEY_FAILURE, 4264 .n_patterns = MWIFIEX_MEF_MAX_FILTERS, 4265 .pattern_min_len = 1, 4266 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4267 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4268 .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS, 4269 }; 4270 4271 static const struct wiphy_wowlan_support mwifiex_wowlan_support_no_gtk = { 4272 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT | 4273 WIPHY_WOWLAN_NET_DETECT, 4274 .n_patterns = MWIFIEX_MEF_MAX_FILTERS, 4275 .pattern_min_len = 1, 4276 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4277 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4278 .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS, 4279 }; 4280 #endif 4281 4282 static bool mwifiex_is_valid_alpha2(const char *alpha2) 4283 { 4284 if (!alpha2 || strlen(alpha2) != 2) 4285 return false; 4286 4287 if (isalpha(alpha2[0]) && isalpha(alpha2[1])) 4288 return true; 4289 4290 return false; 4291 } 4292 4293 static const struct wiphy_coalesce_support mwifiex_coalesce_support = { 4294 .n_rules = MWIFIEX_COALESCE_MAX_RULES, 4295 .max_delay = MWIFIEX_MAX_COALESCING_DELAY, 4296 .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS, 4297 .pattern_min_len = 1, 4298 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4299 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4300 }; 4301 4302 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter) 4303 { 4304 u32 n_channels_bg, n_channels_a = 0; 4305 4306 n_channels_bg = mwifiex_band_2ghz.n_channels; 4307 4308 if (adapter->config_bands & BAND_A) 4309 n_channels_a = mwifiex_band_5ghz.n_channels; 4310 4311 /* allocate twice the number total channels, since the driver issues an 4312 * additional active scan request for hidden SSIDs on passive channels. 4313 */ 4314 adapter->num_in_chan_stats = 2 * (n_channels_bg + n_channels_a); 4315 adapter->chan_stats = vmalloc(array_size(sizeof(*adapter->chan_stats), 4316 adapter->num_in_chan_stats)); 4317 4318 if (!adapter->chan_stats) 4319 return -ENOMEM; 4320 4321 return 0; 4322 } 4323 4324 /* 4325 * This function registers the device with CFG802.11 subsystem. 4326 * 4327 * The function creates the wireless device/wiphy, populates it with 4328 * default parameters and handler function pointers, and finally 4329 * registers the device. 4330 */ 4331 4332 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter) 4333 { 4334 int ret; 4335 void *wdev_priv; 4336 struct wiphy *wiphy; 4337 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA]; 4338 u8 *country_code; 4339 u32 thr, retry; 4340 4341 /* create a new wiphy for use with cfg80211 */ 4342 wiphy = wiphy_new(&mwifiex_cfg80211_ops, 4343 sizeof(struct mwifiex_adapter *)); 4344 if (!wiphy) { 4345 mwifiex_dbg(adapter, ERROR, 4346 "%s: creating new wiphy\n", __func__); 4347 return -ENOMEM; 4348 } 4349 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH; 4350 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN; 4351 wiphy->mgmt_stypes = mwifiex_mgmt_stypes; 4352 wiphy->max_remain_on_channel_duration = 5000; 4353 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 4354 BIT(NL80211_IFTYPE_P2P_CLIENT) | 4355 BIT(NL80211_IFTYPE_P2P_GO) | 4356 BIT(NL80211_IFTYPE_AP); 4357 4358 if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info)) 4359 wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC); 4360 4361 wiphy->bands[NL80211_BAND_2GHZ] = &mwifiex_band_2ghz; 4362 if (adapter->config_bands & BAND_A) 4363 wiphy->bands[NL80211_BAND_5GHZ] = &mwifiex_band_5ghz; 4364 else 4365 wiphy->bands[NL80211_BAND_5GHZ] = NULL; 4366 4367 if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info)) 4368 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs; 4369 else if (adapter->is_hw_11ac_capable) 4370 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht; 4371 else 4372 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta; 4373 wiphy->n_iface_combinations = 1; 4374 4375 if (adapter->max_sta_conn > adapter->max_p2p_conn) 4376 wiphy->max_ap_assoc_sta = adapter->max_sta_conn; 4377 else 4378 wiphy->max_ap_assoc_sta = adapter->max_p2p_conn; 4379 4380 /* Initialize cipher suits */ 4381 wiphy->cipher_suites = mwifiex_cipher_suites; 4382 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites); 4383 4384 if (adapter->regd) { 4385 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 4386 REGULATORY_DISABLE_BEACON_HINTS | 4387 REGULATORY_COUNTRY_IE_IGNORE; 4388 wiphy_apply_custom_regulatory(wiphy, adapter->regd); 4389 } 4390 4391 ether_addr_copy(wiphy->perm_addr, adapter->perm_addr); 4392 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 4393 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | 4394 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | 4395 WIPHY_FLAG_AP_UAPSD | 4396 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | 4397 WIPHY_FLAG_HAS_CHANNEL_SWITCH | 4398 WIPHY_FLAG_PS_ON_BY_DEFAULT; 4399 4400 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info)) 4401 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS | 4402 WIPHY_FLAG_TDLS_EXTERNAL_SETUP; 4403 4404 #ifdef CONFIG_PM 4405 if (ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info)) 4406 wiphy->wowlan = &mwifiex_wowlan_support; 4407 else 4408 wiphy->wowlan = &mwifiex_wowlan_support_no_gtk; 4409 #endif 4410 4411 wiphy->coalesce = &mwifiex_coalesce_support; 4412 4413 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 4414 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 4415 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; 4416 4417 wiphy->max_sched_scan_reqs = 1; 4418 wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH; 4419 wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN; 4420 wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH; 4421 4422 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1; 4423 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1; 4424 4425 wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER | 4426 NL80211_FEATURE_LOW_PRIORITY_SCAN | 4427 NL80211_FEATURE_NEED_OBSS_SCAN; 4428 4429 if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info)) 4430 wiphy->features |= NL80211_FEATURE_HT_IBSS; 4431 4432 if (ISSUPP_RANDOM_MAC(adapter->fw_cap_info)) 4433 wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 4434 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 4435 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 4436 4437 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info)) 4438 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 4439 4440 if (adapter->fw_api_ver == MWIFIEX_FW_V15) 4441 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS; 4442 4443 /* Reserve space for mwifiex specific private data for BSS */ 4444 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv); 4445 4446 wiphy->reg_notifier = mwifiex_reg_notifier; 4447 4448 /* Set struct mwifiex_adapter pointer in wiphy_priv */ 4449 wdev_priv = wiphy_priv(wiphy); 4450 *(unsigned long *)wdev_priv = (unsigned long)adapter; 4451 4452 set_wiphy_dev(wiphy, priv->adapter->dev); 4453 4454 ret = wiphy_register(wiphy); 4455 if (ret < 0) { 4456 mwifiex_dbg(adapter, ERROR, 4457 "%s: wiphy_register failed: %d\n", __func__, ret); 4458 wiphy_free(wiphy); 4459 return ret; 4460 } 4461 4462 if (!adapter->regd) { 4463 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) { 4464 mwifiex_dbg(adapter, INFO, 4465 "driver hint alpha2: %2.2s\n", reg_alpha2); 4466 regulatory_hint(wiphy, reg_alpha2); 4467 } else { 4468 if (adapter->region_code == 0x00) { 4469 mwifiex_dbg(adapter, WARN, 4470 "Ignore world regulatory domain\n"); 4471 } else { 4472 wiphy->regulatory_flags |= 4473 REGULATORY_DISABLE_BEACON_HINTS | 4474 REGULATORY_COUNTRY_IE_IGNORE; 4475 country_code = 4476 mwifiex_11d_code_2_region( 4477 adapter->region_code); 4478 if (country_code && 4479 regulatory_hint(wiphy, country_code)) 4480 mwifiex_dbg(priv->adapter, ERROR, 4481 "regulatory_hint() failed\n"); 4482 } 4483 } 4484 } 4485 4486 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4487 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true); 4488 wiphy->frag_threshold = thr; 4489 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4490 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true); 4491 wiphy->rts_threshold = thr; 4492 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4493 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true); 4494 wiphy->retry_short = (u8) retry; 4495 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4496 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true); 4497 wiphy->retry_long = (u8) retry; 4498 4499 adapter->wiphy = wiphy; 4500 return ret; 4501 } 4502