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 priv->bss_num = mwifiex_get_unused_bss_num(adapter, priv->bss_type); 930 931 spin_lock_irqsave(&adapter->main_proc_lock, flags); 932 adapter->main_locked = false; 933 spin_unlock_irqrestore(&adapter->main_proc_lock, flags); 934 935 spin_lock_bh(&adapter->rx_proc_lock); 936 adapter->rx_locked = false; 937 spin_unlock_bh(&adapter->rx_proc_lock); 938 939 mwifiex_set_mac_address(priv, dev, false, NULL); 940 941 return 0; 942 } 943 944 static bool 945 is_vif_type_change_allowed(struct mwifiex_adapter *adapter, 946 enum nl80211_iftype old_iftype, 947 enum nl80211_iftype new_iftype) 948 { 949 switch (old_iftype) { 950 case NL80211_IFTYPE_ADHOC: 951 switch (new_iftype) { 952 case NL80211_IFTYPE_STATION: 953 return true; 954 case NL80211_IFTYPE_P2P_CLIENT: 955 case NL80211_IFTYPE_P2P_GO: 956 return adapter->curr_iface_comb.p2p_intf != 957 adapter->iface_limit.p2p_intf; 958 case NL80211_IFTYPE_AP: 959 return adapter->curr_iface_comb.uap_intf != 960 adapter->iface_limit.uap_intf; 961 default: 962 return false; 963 } 964 965 case NL80211_IFTYPE_STATION: 966 switch (new_iftype) { 967 case NL80211_IFTYPE_ADHOC: 968 return true; 969 case NL80211_IFTYPE_P2P_CLIENT: 970 case NL80211_IFTYPE_P2P_GO: 971 return adapter->curr_iface_comb.p2p_intf != 972 adapter->iface_limit.p2p_intf; 973 case NL80211_IFTYPE_AP: 974 return adapter->curr_iface_comb.uap_intf != 975 adapter->iface_limit.uap_intf; 976 default: 977 return false; 978 } 979 980 case NL80211_IFTYPE_AP: 981 switch (new_iftype) { 982 case NL80211_IFTYPE_ADHOC: 983 case NL80211_IFTYPE_STATION: 984 return adapter->curr_iface_comb.sta_intf != 985 adapter->iface_limit.sta_intf; 986 case NL80211_IFTYPE_P2P_CLIENT: 987 case NL80211_IFTYPE_P2P_GO: 988 return adapter->curr_iface_comb.p2p_intf != 989 adapter->iface_limit.p2p_intf; 990 default: 991 return false; 992 } 993 994 case NL80211_IFTYPE_P2P_CLIENT: 995 switch (new_iftype) { 996 case NL80211_IFTYPE_ADHOC: 997 case NL80211_IFTYPE_STATION: 998 return true; 999 case NL80211_IFTYPE_P2P_GO: 1000 return true; 1001 case NL80211_IFTYPE_AP: 1002 return adapter->curr_iface_comb.uap_intf != 1003 adapter->iface_limit.uap_intf; 1004 default: 1005 return false; 1006 } 1007 1008 case NL80211_IFTYPE_P2P_GO: 1009 switch (new_iftype) { 1010 case NL80211_IFTYPE_ADHOC: 1011 case NL80211_IFTYPE_STATION: 1012 return true; 1013 case NL80211_IFTYPE_P2P_CLIENT: 1014 return true; 1015 case NL80211_IFTYPE_AP: 1016 return adapter->curr_iface_comb.uap_intf != 1017 adapter->iface_limit.uap_intf; 1018 default: 1019 return false; 1020 } 1021 1022 default: 1023 break; 1024 } 1025 1026 return false; 1027 } 1028 1029 static void 1030 update_vif_type_counter(struct mwifiex_adapter *adapter, 1031 enum nl80211_iftype iftype, 1032 int change) 1033 { 1034 switch (iftype) { 1035 case NL80211_IFTYPE_UNSPECIFIED: 1036 case NL80211_IFTYPE_ADHOC: 1037 case NL80211_IFTYPE_STATION: 1038 adapter->curr_iface_comb.sta_intf += change; 1039 break; 1040 case NL80211_IFTYPE_AP: 1041 adapter->curr_iface_comb.uap_intf += change; 1042 break; 1043 case NL80211_IFTYPE_P2P_CLIENT: 1044 case NL80211_IFTYPE_P2P_GO: 1045 adapter->curr_iface_comb.p2p_intf += change; 1046 break; 1047 default: 1048 mwifiex_dbg(adapter, ERROR, 1049 "%s: Unsupported iftype passed: %d\n", 1050 __func__, iftype); 1051 break; 1052 } 1053 } 1054 1055 static int 1056 mwifiex_change_vif_to_p2p(struct net_device *dev, 1057 enum nl80211_iftype curr_iftype, 1058 enum nl80211_iftype type, 1059 struct vif_params *params) 1060 { 1061 struct mwifiex_private *priv; 1062 struct mwifiex_adapter *adapter; 1063 1064 priv = mwifiex_netdev_get_priv(dev); 1065 1066 if (!priv) 1067 return -1; 1068 1069 adapter = priv->adapter; 1070 1071 mwifiex_dbg(adapter, INFO, 1072 "%s: changing role to p2p\n", dev->name); 1073 1074 if (mwifiex_deinit_priv_params(priv)) 1075 return -1; 1076 if (mwifiex_init_new_priv_params(priv, dev, type)) 1077 return -1; 1078 1079 update_vif_type_counter(adapter, curr_iftype, -1); 1080 update_vif_type_counter(adapter, type, +1); 1081 dev->ieee80211_ptr->iftype = type; 1082 1083 switch (type) { 1084 case NL80211_IFTYPE_P2P_CLIENT: 1085 if (mwifiex_cfg80211_init_p2p_client(priv)) 1086 return -EFAULT; 1087 break; 1088 case NL80211_IFTYPE_P2P_GO: 1089 if (mwifiex_cfg80211_init_p2p_go(priv)) 1090 return -EFAULT; 1091 break; 1092 default: 1093 mwifiex_dbg(adapter, ERROR, 1094 "%s: changing to %d not supported\n", 1095 dev->name, type); 1096 return -EOPNOTSUPP; 1097 } 1098 1099 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1100 HostCmd_ACT_GEN_SET, 0, NULL, true)) 1101 return -1; 1102 1103 if (mwifiex_sta_init_cmd(priv, false, false)) 1104 return -1; 1105 1106 return 0; 1107 } 1108 1109 static int 1110 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev, 1111 enum nl80211_iftype curr_iftype, 1112 enum nl80211_iftype type, 1113 struct vif_params *params) 1114 { 1115 struct mwifiex_private *priv; 1116 struct mwifiex_adapter *adapter; 1117 1118 priv = mwifiex_netdev_get_priv(dev); 1119 1120 if (!priv) 1121 return -1; 1122 1123 adapter = priv->adapter; 1124 1125 if (type == NL80211_IFTYPE_STATION) 1126 mwifiex_dbg(adapter, INFO, 1127 "%s: changing role to station\n", dev->name); 1128 else 1129 mwifiex_dbg(adapter, INFO, 1130 "%s: changing role to adhoc\n", dev->name); 1131 1132 if (mwifiex_deinit_priv_params(priv)) 1133 return -1; 1134 if (mwifiex_init_new_priv_params(priv, dev, type)) 1135 return -1; 1136 1137 update_vif_type_counter(adapter, curr_iftype, -1); 1138 update_vif_type_counter(adapter, type, +1); 1139 dev->ieee80211_ptr->iftype = type; 1140 1141 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1142 HostCmd_ACT_GEN_SET, 0, NULL, true)) 1143 return -1; 1144 if (mwifiex_sta_init_cmd(priv, false, false)) 1145 return -1; 1146 1147 return 0; 1148 } 1149 1150 static int 1151 mwifiex_change_vif_to_ap(struct net_device *dev, 1152 enum nl80211_iftype curr_iftype, 1153 enum nl80211_iftype type, 1154 struct vif_params *params) 1155 { 1156 struct mwifiex_private *priv; 1157 struct mwifiex_adapter *adapter; 1158 1159 priv = mwifiex_netdev_get_priv(dev); 1160 1161 if (!priv) 1162 return -1; 1163 1164 adapter = priv->adapter; 1165 1166 mwifiex_dbg(adapter, INFO, 1167 "%s: changing role to AP\n", dev->name); 1168 1169 if (mwifiex_deinit_priv_params(priv)) 1170 return -1; 1171 if (mwifiex_init_new_priv_params(priv, dev, type)) 1172 return -1; 1173 1174 update_vif_type_counter(adapter, curr_iftype, -1); 1175 update_vif_type_counter(adapter, type, +1); 1176 dev->ieee80211_ptr->iftype = type; 1177 1178 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1179 HostCmd_ACT_GEN_SET, 0, NULL, true)) 1180 return -1; 1181 if (mwifiex_sta_init_cmd(priv, false, false)) 1182 return -1; 1183 1184 return 0; 1185 } 1186 /* 1187 * CFG802.11 operation handler to change interface type. 1188 */ 1189 static int 1190 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy, 1191 struct net_device *dev, 1192 enum nl80211_iftype type, 1193 struct vif_params *params) 1194 { 1195 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1196 enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype; 1197 1198 if (priv->scan_request) { 1199 mwifiex_dbg(priv->adapter, ERROR, 1200 "change virtual interface: scan in process\n"); 1201 return -EBUSY; 1202 } 1203 1204 if (type == NL80211_IFTYPE_UNSPECIFIED) { 1205 mwifiex_dbg(priv->adapter, INFO, 1206 "%s: no new type specified, keeping old type %d\n", 1207 dev->name, curr_iftype); 1208 return 0; 1209 } 1210 1211 if (curr_iftype == type) { 1212 mwifiex_dbg(priv->adapter, INFO, 1213 "%s: interface already is of type %d\n", 1214 dev->name, curr_iftype); 1215 return 0; 1216 } 1217 1218 if (!is_vif_type_change_allowed(priv->adapter, curr_iftype, type)) { 1219 mwifiex_dbg(priv->adapter, ERROR, 1220 "%s: change from type %d to %d is not allowed\n", 1221 dev->name, curr_iftype, type); 1222 return -EOPNOTSUPP; 1223 } 1224 1225 switch (curr_iftype) { 1226 case NL80211_IFTYPE_ADHOC: 1227 switch (type) { 1228 case NL80211_IFTYPE_STATION: 1229 priv->bss_mode = type; 1230 priv->sec_info.authentication_mode = 1231 NL80211_AUTHTYPE_OPEN_SYSTEM; 1232 dev->ieee80211_ptr->iftype = type; 1233 mwifiex_deauthenticate(priv, NULL); 1234 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1235 HostCmd_ACT_GEN_SET, 0, NULL, 1236 true); 1237 case NL80211_IFTYPE_P2P_CLIENT: 1238 case NL80211_IFTYPE_P2P_GO: 1239 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1240 type, params); 1241 case NL80211_IFTYPE_AP: 1242 return mwifiex_change_vif_to_ap(dev, curr_iftype, type, 1243 params); 1244 default: 1245 goto errnotsupp; 1246 } 1247 1248 case NL80211_IFTYPE_STATION: 1249 switch (type) { 1250 case NL80211_IFTYPE_ADHOC: 1251 priv->bss_mode = type; 1252 priv->sec_info.authentication_mode = 1253 NL80211_AUTHTYPE_OPEN_SYSTEM; 1254 dev->ieee80211_ptr->iftype = type; 1255 mwifiex_deauthenticate(priv, NULL); 1256 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1257 HostCmd_ACT_GEN_SET, 0, NULL, 1258 true); 1259 case NL80211_IFTYPE_P2P_CLIENT: 1260 case NL80211_IFTYPE_P2P_GO: 1261 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1262 type, params); 1263 case NL80211_IFTYPE_AP: 1264 return mwifiex_change_vif_to_ap(dev, curr_iftype, type, 1265 params); 1266 default: 1267 goto errnotsupp; 1268 } 1269 1270 case NL80211_IFTYPE_AP: 1271 switch (type) { 1272 case NL80211_IFTYPE_ADHOC: 1273 case NL80211_IFTYPE_STATION: 1274 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype, 1275 type, params); 1276 break; 1277 case NL80211_IFTYPE_P2P_CLIENT: 1278 case NL80211_IFTYPE_P2P_GO: 1279 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1280 type, params); 1281 default: 1282 goto errnotsupp; 1283 } 1284 1285 case NL80211_IFTYPE_P2P_CLIENT: 1286 if (mwifiex_cfg80211_deinit_p2p(priv)) 1287 return -EFAULT; 1288 1289 switch (type) { 1290 case NL80211_IFTYPE_ADHOC: 1291 case NL80211_IFTYPE_STATION: 1292 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype, 1293 type, params); 1294 case NL80211_IFTYPE_P2P_GO: 1295 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1296 type, params); 1297 case NL80211_IFTYPE_AP: 1298 return mwifiex_change_vif_to_ap(dev, curr_iftype, type, 1299 params); 1300 default: 1301 goto errnotsupp; 1302 } 1303 1304 case NL80211_IFTYPE_P2P_GO: 1305 if (mwifiex_cfg80211_deinit_p2p(priv)) 1306 return -EFAULT; 1307 1308 switch (type) { 1309 case NL80211_IFTYPE_ADHOC: 1310 case NL80211_IFTYPE_STATION: 1311 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype, 1312 type, params); 1313 case NL80211_IFTYPE_P2P_CLIENT: 1314 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1315 type, params); 1316 case NL80211_IFTYPE_AP: 1317 return mwifiex_change_vif_to_ap(dev, curr_iftype, type, 1318 params); 1319 default: 1320 goto errnotsupp; 1321 } 1322 1323 default: 1324 goto errnotsupp; 1325 } 1326 1327 1328 return 0; 1329 1330 errnotsupp: 1331 mwifiex_dbg(priv->adapter, ERROR, 1332 "unsupported interface type transition: %d to %d\n", 1333 curr_iftype, type); 1334 return -EOPNOTSUPP; 1335 } 1336 1337 static void 1338 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 rateinfo, u8 htinfo, 1339 struct rate_info *rate) 1340 { 1341 struct mwifiex_adapter *adapter = priv->adapter; 1342 1343 if (adapter->is_hw_11ac_capable) { 1344 /* bit[1-0]: 00=LG 01=HT 10=VHT */ 1345 if (htinfo & BIT(0)) { 1346 /* HT */ 1347 rate->mcs = rateinfo; 1348 rate->flags |= RATE_INFO_FLAGS_MCS; 1349 } 1350 if (htinfo & BIT(1)) { 1351 /* VHT */ 1352 rate->mcs = rateinfo & 0x0F; 1353 rate->flags |= RATE_INFO_FLAGS_VHT_MCS; 1354 } 1355 1356 if (htinfo & (BIT(1) | BIT(0))) { 1357 /* HT or VHT */ 1358 switch (htinfo & (BIT(3) | BIT(2))) { 1359 case 0: 1360 rate->bw = RATE_INFO_BW_20; 1361 break; 1362 case (BIT(2)): 1363 rate->bw = RATE_INFO_BW_40; 1364 break; 1365 case (BIT(3)): 1366 rate->bw = RATE_INFO_BW_80; 1367 break; 1368 case (BIT(3) | BIT(2)): 1369 rate->bw = RATE_INFO_BW_160; 1370 break; 1371 } 1372 1373 if (htinfo & BIT(4)) 1374 rate->flags |= RATE_INFO_FLAGS_SHORT_GI; 1375 1376 if ((rateinfo >> 4) == 1) 1377 rate->nss = 2; 1378 else 1379 rate->nss = 1; 1380 } 1381 } else { 1382 /* 1383 * Bit 0 in htinfo indicates that current rate is 11n. Valid 1384 * MCS index values for us are 0 to 15. 1385 */ 1386 if ((htinfo & BIT(0)) && (rateinfo < 16)) { 1387 rate->mcs = rateinfo; 1388 rate->flags |= RATE_INFO_FLAGS_MCS; 1389 rate->bw = RATE_INFO_BW_20; 1390 if (htinfo & BIT(1)) 1391 rate->bw = RATE_INFO_BW_40; 1392 if (htinfo & BIT(2)) 1393 rate->flags |= RATE_INFO_FLAGS_SHORT_GI; 1394 } 1395 } 1396 1397 /* Decode legacy rates for non-HT. */ 1398 if (!(htinfo & (BIT(0) | BIT(1)))) { 1399 /* Bitrates in multiples of 100kb/s. */ 1400 static const int legacy_rates[] = { 1401 [0] = 10, 1402 [1] = 20, 1403 [2] = 55, 1404 [3] = 110, 1405 [4] = 60, /* MWIFIEX_RATE_INDEX_OFDM0 */ 1406 [5] = 60, 1407 [6] = 90, 1408 [7] = 120, 1409 [8] = 180, 1410 [9] = 240, 1411 [10] = 360, 1412 [11] = 480, 1413 [12] = 540, 1414 }; 1415 if (rateinfo < ARRAY_SIZE(legacy_rates)) 1416 rate->legacy = legacy_rates[rateinfo]; 1417 } 1418 } 1419 1420 /* 1421 * This function dumps the station information on a buffer. 1422 * 1423 * The following information are shown - 1424 * - Total bytes transmitted 1425 * - Total bytes received 1426 * - Total packets transmitted 1427 * - Total packets received 1428 * - Signal quality level 1429 * - Transmission rate 1430 */ 1431 static int 1432 mwifiex_dump_station_info(struct mwifiex_private *priv, 1433 struct mwifiex_sta_node *node, 1434 struct station_info *sinfo) 1435 { 1436 u32 rate; 1437 1438 sinfo->filled = BIT_ULL(NL80211_STA_INFO_RX_BYTES) | BIT_ULL(NL80211_STA_INFO_TX_BYTES) | 1439 BIT_ULL(NL80211_STA_INFO_RX_PACKETS) | BIT_ULL(NL80211_STA_INFO_TX_PACKETS) | 1440 BIT_ULL(NL80211_STA_INFO_TX_BITRATE) | 1441 BIT_ULL(NL80211_STA_INFO_SIGNAL) | BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 1442 1443 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { 1444 if (!node) 1445 return -ENOENT; 1446 1447 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME) | 1448 BIT_ULL(NL80211_STA_INFO_TX_FAILED); 1449 sinfo->inactive_time = 1450 jiffies_to_msecs(jiffies - node->stats.last_rx); 1451 1452 sinfo->signal = node->stats.rssi; 1453 sinfo->signal_avg = node->stats.rssi; 1454 sinfo->rx_bytes = node->stats.rx_bytes; 1455 sinfo->tx_bytes = node->stats.tx_bytes; 1456 sinfo->rx_packets = node->stats.rx_packets; 1457 sinfo->tx_packets = node->stats.tx_packets; 1458 sinfo->tx_failed = node->stats.tx_failed; 1459 1460 mwifiex_parse_htinfo(priv, priv->tx_rate, 1461 node->stats.last_tx_htinfo, 1462 &sinfo->txrate); 1463 sinfo->txrate.legacy = node->stats.last_tx_rate * 5; 1464 1465 return 0; 1466 } 1467 1468 /* Get signal information from the firmware */ 1469 if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO, 1470 HostCmd_ACT_GEN_GET, 0, NULL, true)) { 1471 mwifiex_dbg(priv->adapter, ERROR, 1472 "failed to get signal information\n"); 1473 return -EFAULT; 1474 } 1475 1476 if (mwifiex_drv_get_data_rate(priv, &rate)) { 1477 mwifiex_dbg(priv->adapter, ERROR, 1478 "getting data rate error\n"); 1479 return -EFAULT; 1480 } 1481 1482 /* Get DTIM period information from firmware */ 1483 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 1484 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I, 1485 &priv->dtim_period, true); 1486 1487 mwifiex_parse_htinfo(priv, priv->tx_rate, priv->tx_htinfo, 1488 &sinfo->txrate); 1489 1490 sinfo->signal_avg = priv->bcn_rssi_avg; 1491 sinfo->rx_bytes = priv->stats.rx_bytes; 1492 sinfo->tx_bytes = priv->stats.tx_bytes; 1493 sinfo->rx_packets = priv->stats.rx_packets; 1494 sinfo->tx_packets = priv->stats.tx_packets; 1495 sinfo->signal = priv->bcn_rssi_avg; 1496 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */ 1497 sinfo->txrate.legacy = rate * 5; 1498 1499 sinfo->filled |= BIT(NL80211_STA_INFO_RX_BITRATE); 1500 mwifiex_parse_htinfo(priv, priv->rxpd_rate, priv->rxpd_htinfo, 1501 &sinfo->rxrate); 1502 1503 if (priv->bss_mode == NL80211_IFTYPE_STATION) { 1504 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BSS_PARAM); 1505 sinfo->bss_param.flags = 0; 1506 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap & 1507 WLAN_CAPABILITY_SHORT_PREAMBLE) 1508 sinfo->bss_param.flags |= 1509 BSS_PARAM_FLAGS_SHORT_PREAMBLE; 1510 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap & 1511 WLAN_CAPABILITY_SHORT_SLOT_TIME) 1512 sinfo->bss_param.flags |= 1513 BSS_PARAM_FLAGS_SHORT_SLOT_TIME; 1514 sinfo->bss_param.dtim_period = priv->dtim_period; 1515 sinfo->bss_param.beacon_interval = 1516 priv->curr_bss_params.bss_descriptor.beacon_period; 1517 } 1518 1519 return 0; 1520 } 1521 1522 /* 1523 * CFG802.11 operation handler to get station information. 1524 * 1525 * This function only works in connected mode, and dumps the 1526 * requested station information, if available. 1527 */ 1528 static int 1529 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev, 1530 const u8 *mac, struct station_info *sinfo) 1531 { 1532 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1533 1534 if (!priv->media_connected) 1535 return -ENOENT; 1536 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN)) 1537 return -ENOENT; 1538 1539 return mwifiex_dump_station_info(priv, NULL, sinfo); 1540 } 1541 1542 /* 1543 * CFG802.11 operation handler to dump station information. 1544 */ 1545 static int 1546 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 1547 int idx, u8 *mac, struct station_info *sinfo) 1548 { 1549 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1550 struct mwifiex_sta_node *node; 1551 int i; 1552 1553 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) && 1554 priv->media_connected && idx == 0) { 1555 ether_addr_copy(mac, priv->cfg_bssid); 1556 return mwifiex_dump_station_info(priv, NULL, sinfo); 1557 } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { 1558 mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST, 1559 HostCmd_ACT_GEN_GET, 0, NULL, true); 1560 1561 i = 0; 1562 list_for_each_entry(node, &priv->sta_list, list) { 1563 if (i++ != idx) 1564 continue; 1565 ether_addr_copy(mac, node->mac_addr); 1566 return mwifiex_dump_station_info(priv, node, sinfo); 1567 } 1568 } 1569 1570 return -ENOENT; 1571 } 1572 1573 static int 1574 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 1575 int idx, struct survey_info *survey) 1576 { 1577 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1578 struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats; 1579 enum nl80211_band band; 1580 1581 mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx); 1582 1583 memset(survey, 0, sizeof(struct survey_info)); 1584 1585 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) && 1586 priv->media_connected && idx == 0) { 1587 u8 curr_bss_band = priv->curr_bss_params.band; 1588 u32 chan = priv->curr_bss_params.bss_descriptor.channel; 1589 1590 band = mwifiex_band_to_radio_type(curr_bss_band); 1591 survey->channel = ieee80211_get_channel(wiphy, 1592 ieee80211_channel_to_frequency(chan, band)); 1593 1594 if (priv->bcn_nf_last) { 1595 survey->filled = SURVEY_INFO_NOISE_DBM; 1596 survey->noise = priv->bcn_nf_last; 1597 } 1598 return 0; 1599 } 1600 1601 if (idx >= priv->adapter->num_in_chan_stats) 1602 return -ENOENT; 1603 1604 if (!pchan_stats[idx].cca_scan_dur) 1605 return 0; 1606 1607 band = pchan_stats[idx].bandcfg; 1608 survey->channel = ieee80211_get_channel(wiphy, 1609 ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band)); 1610 survey->filled = SURVEY_INFO_NOISE_DBM | 1611 SURVEY_INFO_TIME | 1612 SURVEY_INFO_TIME_BUSY; 1613 survey->noise = pchan_stats[idx].noise; 1614 survey->time = pchan_stats[idx].cca_scan_dur; 1615 survey->time_busy = pchan_stats[idx].cca_busy_dur; 1616 1617 return 0; 1618 } 1619 1620 /* Supported rates to be advertised to the cfg80211 */ 1621 static struct ieee80211_rate mwifiex_rates[] = { 1622 {.bitrate = 10, .hw_value = 2, }, 1623 {.bitrate = 20, .hw_value = 4, }, 1624 {.bitrate = 55, .hw_value = 11, }, 1625 {.bitrate = 110, .hw_value = 22, }, 1626 {.bitrate = 60, .hw_value = 12, }, 1627 {.bitrate = 90, .hw_value = 18, }, 1628 {.bitrate = 120, .hw_value = 24, }, 1629 {.bitrate = 180, .hw_value = 36, }, 1630 {.bitrate = 240, .hw_value = 48, }, 1631 {.bitrate = 360, .hw_value = 72, }, 1632 {.bitrate = 480, .hw_value = 96, }, 1633 {.bitrate = 540, .hw_value = 108, }, 1634 }; 1635 1636 /* Channel definitions to be advertised to cfg80211 */ 1637 static struct ieee80211_channel mwifiex_channels_2ghz[] = { 1638 {.center_freq = 2412, .hw_value = 1, }, 1639 {.center_freq = 2417, .hw_value = 2, }, 1640 {.center_freq = 2422, .hw_value = 3, }, 1641 {.center_freq = 2427, .hw_value = 4, }, 1642 {.center_freq = 2432, .hw_value = 5, }, 1643 {.center_freq = 2437, .hw_value = 6, }, 1644 {.center_freq = 2442, .hw_value = 7, }, 1645 {.center_freq = 2447, .hw_value = 8, }, 1646 {.center_freq = 2452, .hw_value = 9, }, 1647 {.center_freq = 2457, .hw_value = 10, }, 1648 {.center_freq = 2462, .hw_value = 11, }, 1649 {.center_freq = 2467, .hw_value = 12, }, 1650 {.center_freq = 2472, .hw_value = 13, }, 1651 {.center_freq = 2484, .hw_value = 14, }, 1652 }; 1653 1654 static struct ieee80211_supported_band mwifiex_band_2ghz = { 1655 .channels = mwifiex_channels_2ghz, 1656 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz), 1657 .bitrates = mwifiex_rates, 1658 .n_bitrates = ARRAY_SIZE(mwifiex_rates), 1659 }; 1660 1661 static struct ieee80211_channel mwifiex_channels_5ghz[] = { 1662 {.center_freq = 5040, .hw_value = 8, }, 1663 {.center_freq = 5060, .hw_value = 12, }, 1664 {.center_freq = 5080, .hw_value = 16, }, 1665 {.center_freq = 5170, .hw_value = 34, }, 1666 {.center_freq = 5190, .hw_value = 38, }, 1667 {.center_freq = 5210, .hw_value = 42, }, 1668 {.center_freq = 5230, .hw_value = 46, }, 1669 {.center_freq = 5180, .hw_value = 36, }, 1670 {.center_freq = 5200, .hw_value = 40, }, 1671 {.center_freq = 5220, .hw_value = 44, }, 1672 {.center_freq = 5240, .hw_value = 48, }, 1673 {.center_freq = 5260, .hw_value = 52, }, 1674 {.center_freq = 5280, .hw_value = 56, }, 1675 {.center_freq = 5300, .hw_value = 60, }, 1676 {.center_freq = 5320, .hw_value = 64, }, 1677 {.center_freq = 5500, .hw_value = 100, }, 1678 {.center_freq = 5520, .hw_value = 104, }, 1679 {.center_freq = 5540, .hw_value = 108, }, 1680 {.center_freq = 5560, .hw_value = 112, }, 1681 {.center_freq = 5580, .hw_value = 116, }, 1682 {.center_freq = 5600, .hw_value = 120, }, 1683 {.center_freq = 5620, .hw_value = 124, }, 1684 {.center_freq = 5640, .hw_value = 128, }, 1685 {.center_freq = 5660, .hw_value = 132, }, 1686 {.center_freq = 5680, .hw_value = 136, }, 1687 {.center_freq = 5700, .hw_value = 140, }, 1688 {.center_freq = 5745, .hw_value = 149, }, 1689 {.center_freq = 5765, .hw_value = 153, }, 1690 {.center_freq = 5785, .hw_value = 157, }, 1691 {.center_freq = 5805, .hw_value = 161, }, 1692 {.center_freq = 5825, .hw_value = 165, }, 1693 }; 1694 1695 static struct ieee80211_supported_band mwifiex_band_5ghz = { 1696 .channels = mwifiex_channels_5ghz, 1697 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz), 1698 .bitrates = mwifiex_rates + 4, 1699 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4, 1700 }; 1701 1702 1703 /* Supported crypto cipher suits to be advertised to cfg80211 */ 1704 static const u32 mwifiex_cipher_suites[] = { 1705 WLAN_CIPHER_SUITE_WEP40, 1706 WLAN_CIPHER_SUITE_WEP104, 1707 WLAN_CIPHER_SUITE_TKIP, 1708 WLAN_CIPHER_SUITE_CCMP, 1709 WLAN_CIPHER_SUITE_SMS4, 1710 WLAN_CIPHER_SUITE_AES_CMAC, 1711 }; 1712 1713 /* Supported mgmt frame types to be advertised to cfg80211 */ 1714 static const struct ieee80211_txrx_stypes 1715 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = { 1716 [NL80211_IFTYPE_STATION] = { 1717 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1718 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 1719 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1720 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 1721 }, 1722 [NL80211_IFTYPE_AP] = { 1723 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1724 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 1725 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1726 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 1727 }, 1728 [NL80211_IFTYPE_P2P_CLIENT] = { 1729 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1730 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 1731 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1732 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 1733 }, 1734 [NL80211_IFTYPE_P2P_GO] = { 1735 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1736 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 1737 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1738 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 1739 }, 1740 }; 1741 1742 /* 1743 * CFG802.11 operation handler for setting bit rates. 1744 * 1745 * Function configures data rates to firmware using bitrate mask 1746 * provided by cfg80211. 1747 */ 1748 static int 1749 mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy, 1750 struct net_device *dev, 1751 unsigned int link_id, 1752 const u8 *peer, 1753 const struct cfg80211_bitrate_mask *mask) 1754 { 1755 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1756 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE]; 1757 enum nl80211_band band; 1758 struct mwifiex_adapter *adapter = priv->adapter; 1759 1760 if (!priv->media_connected) { 1761 mwifiex_dbg(adapter, ERROR, 1762 "Can not set Tx data rate in disconnected state\n"); 1763 return -EINVAL; 1764 } 1765 1766 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 1767 1768 memset(bitmap_rates, 0, sizeof(bitmap_rates)); 1769 1770 /* Fill HR/DSSS rates. */ 1771 if (band == NL80211_BAND_2GHZ) 1772 bitmap_rates[0] = mask->control[band].legacy & 0x000f; 1773 1774 /* Fill OFDM rates */ 1775 if (band == NL80211_BAND_2GHZ) 1776 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4; 1777 else 1778 bitmap_rates[1] = mask->control[band].legacy; 1779 1780 /* Fill HT MCS rates */ 1781 bitmap_rates[2] = mask->control[band].ht_mcs[0]; 1782 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2) 1783 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8; 1784 1785 /* Fill VHT MCS rates */ 1786 if (adapter->fw_api_ver == MWIFIEX_FW_V15) { 1787 bitmap_rates[10] = mask->control[band].vht_mcs[0]; 1788 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2) 1789 bitmap_rates[11] = mask->control[band].vht_mcs[1]; 1790 } 1791 1792 return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG, 1793 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true); 1794 } 1795 1796 /* 1797 * CFG802.11 operation handler for connection quality monitoring. 1798 * 1799 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI 1800 * events to FW. 1801 */ 1802 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy, 1803 struct net_device *dev, 1804 s32 rssi_thold, u32 rssi_hyst) 1805 { 1806 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1807 struct mwifiex_ds_misc_subsc_evt subsc_evt; 1808 1809 priv->cqm_rssi_thold = rssi_thold; 1810 priv->cqm_rssi_hyst = rssi_hyst; 1811 1812 memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt)); 1813 subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH; 1814 1815 /* Subscribe/unsubscribe low and high rssi events */ 1816 if (rssi_thold && rssi_hyst) { 1817 subsc_evt.action = HostCmd_ACT_BITWISE_SET; 1818 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold); 1819 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold); 1820 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1; 1821 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1; 1822 return mwifiex_send_cmd(priv, 1823 HostCmd_CMD_802_11_SUBSCRIBE_EVENT, 1824 0, 0, &subsc_evt, true); 1825 } else { 1826 subsc_evt.action = HostCmd_ACT_BITWISE_CLR; 1827 return mwifiex_send_cmd(priv, 1828 HostCmd_CMD_802_11_SUBSCRIBE_EVENT, 1829 0, 0, &subsc_evt, true); 1830 } 1831 1832 return 0; 1833 } 1834 1835 /* cfg80211 operation handler for change_beacon. 1836 * Function retrieves and sets modified management IEs to FW. 1837 */ 1838 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy, 1839 struct net_device *dev, 1840 struct cfg80211_ap_update *params) 1841 { 1842 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1843 struct mwifiex_adapter *adapter = priv->adapter; 1844 struct cfg80211_beacon_data *data = ¶ms->beacon; 1845 1846 mwifiex_cancel_scan(adapter); 1847 1848 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) { 1849 mwifiex_dbg(priv->adapter, ERROR, 1850 "%s: bss_type mismatched\n", __func__); 1851 return -EINVAL; 1852 } 1853 1854 if (!priv->bss_started) { 1855 mwifiex_dbg(priv->adapter, ERROR, 1856 "%s: bss not started\n", __func__); 1857 return -EINVAL; 1858 } 1859 1860 if (mwifiex_set_mgmt_ies(priv, data)) { 1861 mwifiex_dbg(priv->adapter, ERROR, 1862 "%s: setting mgmt ies failed\n", __func__); 1863 return -EFAULT; 1864 } 1865 1866 return 0; 1867 } 1868 1869 /* cfg80211 operation handler for del_station. 1870 * Function deauthenticates station which value is provided in mac parameter. 1871 * If mac is NULL/broadcast, all stations in associated station list are 1872 * deauthenticated. If bss is not started or there are no stations in 1873 * associated stations list, no action is taken. 1874 */ 1875 static int 1876 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1877 struct station_del_parameters *params) 1878 { 1879 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1880 struct mwifiex_sta_node *sta_node; 1881 u8 deauth_mac[ETH_ALEN]; 1882 1883 if (!priv->bss_started && priv->wdev.cac_started) { 1884 mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__); 1885 mwifiex_abort_cac(priv); 1886 } 1887 1888 if (list_empty(&priv->sta_list) || !priv->bss_started) 1889 return 0; 1890 1891 if (!params->mac || is_broadcast_ether_addr(params->mac)) 1892 return 0; 1893 1894 mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n", 1895 __func__, params->mac); 1896 1897 eth_zero_addr(deauth_mac); 1898 1899 spin_lock_bh(&priv->sta_list_spinlock); 1900 sta_node = mwifiex_get_sta_entry(priv, params->mac); 1901 if (sta_node) 1902 ether_addr_copy(deauth_mac, params->mac); 1903 spin_unlock_bh(&priv->sta_list_spinlock); 1904 1905 if (is_valid_ether_addr(deauth_mac)) { 1906 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH, 1907 HostCmd_ACT_GEN_SET, 0, 1908 deauth_mac, true)) 1909 return -1; 1910 } 1911 1912 return 0; 1913 } 1914 1915 static int 1916 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 1917 { 1918 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 1919 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 1920 MWIFIEX_BSS_ROLE_ANY); 1921 struct mwifiex_ds_ant_cfg ant_cfg; 1922 1923 if (!tx_ant || !rx_ant) 1924 return -EOPNOTSUPP; 1925 1926 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) { 1927 /* Not a MIMO chip. User should provide specific antenna number 1928 * for Tx/Rx path or enable all antennas for diversity 1929 */ 1930 if (tx_ant != rx_ant) 1931 return -EOPNOTSUPP; 1932 1933 if ((tx_ant & (tx_ant - 1)) && 1934 (tx_ant != BIT(adapter->number_of_antenna) - 1)) 1935 return -EOPNOTSUPP; 1936 1937 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) && 1938 (priv->adapter->number_of_antenna > 1)) { 1939 tx_ant = RF_ANTENNA_AUTO; 1940 rx_ant = RF_ANTENNA_AUTO; 1941 } 1942 } else { 1943 struct ieee80211_sta_ht_cap *ht_info; 1944 int rx_mcs_supp; 1945 enum nl80211_band band; 1946 1947 if ((tx_ant == 0x1 && rx_ant == 0x1)) { 1948 adapter->user_dev_mcs_support = HT_STREAM_1X1; 1949 if (adapter->is_hw_11ac_capable) 1950 adapter->usr_dot_11ac_mcs_support = 1951 MWIFIEX_11AC_MCS_MAP_1X1; 1952 } else { 1953 adapter->user_dev_mcs_support = HT_STREAM_2X2; 1954 if (adapter->is_hw_11ac_capable) 1955 adapter->usr_dot_11ac_mcs_support = 1956 MWIFIEX_11AC_MCS_MAP_2X2; 1957 } 1958 1959 for (band = 0; band < NUM_NL80211_BANDS; band++) { 1960 if (!adapter->wiphy->bands[band]) 1961 continue; 1962 1963 ht_info = &adapter->wiphy->bands[band]->ht_cap; 1964 rx_mcs_supp = 1965 GET_RXMCSSUPP(adapter->user_dev_mcs_support); 1966 memset(&ht_info->mcs, 0, adapter->number_of_antenna); 1967 memset(&ht_info->mcs, 0xff, rx_mcs_supp); 1968 } 1969 } 1970 1971 ant_cfg.tx_ant = tx_ant; 1972 ant_cfg.rx_ant = rx_ant; 1973 1974 return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA, 1975 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true); 1976 } 1977 1978 static int 1979 mwifiex_cfg80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 1980 { 1981 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 1982 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 1983 MWIFIEX_BSS_ROLE_ANY); 1984 mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA, 1985 HostCmd_ACT_GEN_GET, 0, NULL, true); 1986 1987 *tx_ant = priv->tx_ant; 1988 *rx_ant = priv->rx_ant; 1989 1990 return 0; 1991 } 1992 1993 /* cfg80211 operation handler for stop ap. 1994 * Function stops BSS running at uAP interface. 1995 */ 1996 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1997 unsigned int link_id) 1998 { 1999 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2000 2001 mwifiex_abort_cac(priv); 2002 2003 if (mwifiex_del_mgmt_ies(priv)) 2004 mwifiex_dbg(priv->adapter, ERROR, 2005 "Failed to delete mgmt IEs!\n"); 2006 2007 priv->ap_11n_enabled = 0; 2008 memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg)); 2009 2010 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP, 2011 HostCmd_ACT_GEN_SET, 0, NULL, true)) { 2012 mwifiex_dbg(priv->adapter, ERROR, 2013 "Failed to stop the BSS\n"); 2014 return -1; 2015 } 2016 2017 if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET, 2018 HostCmd_ACT_GEN_SET, 0, NULL, true)) { 2019 mwifiex_dbg(priv->adapter, ERROR, 2020 "Failed to reset BSS\n"); 2021 return -1; 2022 } 2023 2024 if (netif_carrier_ok(priv->netdev)) 2025 netif_carrier_off(priv->netdev); 2026 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter); 2027 2028 return 0; 2029 } 2030 2031 /* cfg80211 operation handler for start_ap. 2032 * Function sets beacon period, DTIM period, SSID and security into 2033 * AP config structure. 2034 * AP is configured with these settings and BSS is started. 2035 */ 2036 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy, 2037 struct net_device *dev, 2038 struct cfg80211_ap_settings *params) 2039 { 2040 struct mwifiex_uap_bss_param *bss_cfg; 2041 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2042 2043 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) 2044 return -1; 2045 2046 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL); 2047 if (!bss_cfg) 2048 return -ENOMEM; 2049 2050 mwifiex_set_sys_config_invalid_data(bss_cfg); 2051 2052 memcpy(bss_cfg->mac_addr, priv->curr_addr, ETH_ALEN); 2053 2054 if (params->beacon_interval) 2055 bss_cfg->beacon_period = params->beacon_interval; 2056 if (params->dtim_period) 2057 bss_cfg->dtim_period = params->dtim_period; 2058 2059 if (params->ssid && params->ssid_len) { 2060 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len); 2061 bss_cfg->ssid.ssid_len = params->ssid_len; 2062 } 2063 if (params->inactivity_timeout > 0) { 2064 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */ 2065 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout; 2066 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout; 2067 } 2068 2069 switch (params->hidden_ssid) { 2070 case NL80211_HIDDEN_SSID_NOT_IN_USE: 2071 bss_cfg->bcast_ssid_ctl = 1; 2072 break; 2073 case NL80211_HIDDEN_SSID_ZERO_LEN: 2074 bss_cfg->bcast_ssid_ctl = 0; 2075 break; 2076 case NL80211_HIDDEN_SSID_ZERO_CONTENTS: 2077 bss_cfg->bcast_ssid_ctl = 2; 2078 break; 2079 default: 2080 kfree(bss_cfg); 2081 return -EINVAL; 2082 } 2083 2084 mwifiex_uap_set_channel(priv, bss_cfg, params->chandef); 2085 mwifiex_set_uap_rates(bss_cfg, params); 2086 2087 if (mwifiex_set_secure_params(priv, bss_cfg, params)) { 2088 mwifiex_dbg(priv->adapter, ERROR, 2089 "Failed to parse security parameters!\n"); 2090 goto out; 2091 } 2092 2093 mwifiex_set_ht_params(priv, bss_cfg, params); 2094 2095 if (priv->adapter->is_hw_11ac_capable) { 2096 mwifiex_set_vht_params(priv, bss_cfg, params); 2097 mwifiex_set_vht_width(priv, params->chandef.width, 2098 priv->ap_11ac_enabled); 2099 } 2100 2101 if (priv->ap_11ac_enabled) 2102 mwifiex_set_11ac_ba_params(priv); 2103 else 2104 mwifiex_set_ba_params(priv); 2105 2106 mwifiex_set_wmm_params(priv, bss_cfg, params); 2107 2108 if (mwifiex_is_11h_active(priv)) 2109 mwifiex_set_tpc_params(priv, bss_cfg, params); 2110 2111 if (mwifiex_is_11h_active(priv) && 2112 !cfg80211_chandef_dfs_required(wiphy, ¶ms->chandef, 2113 priv->bss_mode)) { 2114 mwifiex_dbg(priv->adapter, INFO, 2115 "Disable 11h extensions in FW\n"); 2116 if (mwifiex_11h_activate(priv, false)) { 2117 mwifiex_dbg(priv->adapter, ERROR, 2118 "Failed to disable 11h extensions!!"); 2119 goto out; 2120 } 2121 priv->state_11h.is_11h_active = false; 2122 } 2123 2124 mwifiex_config_uap_11d(priv, ¶ms->beacon); 2125 2126 if (mwifiex_config_start_uap(priv, bss_cfg)) { 2127 mwifiex_dbg(priv->adapter, ERROR, 2128 "Failed to start AP\n"); 2129 goto out; 2130 } 2131 2132 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon)) 2133 goto out; 2134 2135 if (!netif_carrier_ok(priv->netdev)) 2136 netif_carrier_on(priv->netdev); 2137 mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter); 2138 2139 memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg)); 2140 kfree(bss_cfg); 2141 return 0; 2142 2143 out: 2144 kfree(bss_cfg); 2145 return -1; 2146 } 2147 2148 /* 2149 * CFG802.11 operation handler for disconnection request. 2150 * 2151 * This function does not work when there is already a disconnection 2152 * procedure going on. 2153 */ 2154 static int 2155 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev, 2156 u16 reason_code) 2157 { 2158 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2159 2160 if (!mwifiex_stop_bg_scan(priv)) 2161 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0); 2162 2163 if (mwifiex_deauthenticate(priv, NULL)) 2164 return -EFAULT; 2165 2166 eth_zero_addr(priv->cfg_bssid); 2167 priv->hs2_enabled = false; 2168 2169 return 0; 2170 } 2171 2172 /* 2173 * This function informs the CFG802.11 subsystem of a new IBSS. 2174 * 2175 * The following information are sent to the CFG802.11 subsystem 2176 * to register the new IBSS. If we do not register the new IBSS, 2177 * a kernel panic will result. 2178 * - SSID 2179 * - SSID length 2180 * - BSSID 2181 * - Channel 2182 */ 2183 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv) 2184 { 2185 struct ieee80211_channel *chan; 2186 struct mwifiex_bss_info bss_info; 2187 struct cfg80211_bss *bss; 2188 int ie_len; 2189 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)]; 2190 enum nl80211_band band; 2191 2192 if (mwifiex_get_bss_info(priv, &bss_info)) 2193 return -1; 2194 2195 ie_buf[0] = WLAN_EID_SSID; 2196 ie_buf[1] = bss_info.ssid.ssid_len; 2197 2198 memcpy(&ie_buf[sizeof(struct ieee_types_header)], 2199 &bss_info.ssid.ssid, bss_info.ssid.ssid_len); 2200 ie_len = ie_buf[1] + sizeof(struct ieee_types_header); 2201 2202 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 2203 chan = ieee80211_get_channel(priv->wdev.wiphy, 2204 ieee80211_channel_to_frequency(bss_info.bss_chan, 2205 band)); 2206 2207 bss = cfg80211_inform_bss(priv->wdev.wiphy, chan, 2208 CFG80211_BSS_FTYPE_UNKNOWN, 2209 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS, 2210 0, ie_buf, ie_len, 0, GFP_KERNEL); 2211 if (bss) { 2212 cfg80211_put_bss(priv->wdev.wiphy, bss); 2213 ether_addr_copy(priv->cfg_bssid, bss_info.bssid); 2214 } 2215 2216 return 0; 2217 } 2218 2219 /* 2220 * This function connects with a BSS. 2221 * 2222 * This function handles both Infra and Ad-Hoc modes. It also performs 2223 * validity checking on the provided parameters, disconnects from the 2224 * current BSS (if any), sets up the association/scan parameters, 2225 * including security settings, and performs specific SSID scan before 2226 * trying to connect. 2227 * 2228 * For Infra mode, the function returns failure if the specified SSID 2229 * is not found in scan table. However, for Ad-Hoc mode, it can create 2230 * the IBSS if it does not exist. On successful completion in either case, 2231 * the function notifies the CFG802.11 subsystem of the new BSS connection. 2232 */ 2233 static int 2234 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, 2235 const u8 *ssid, const u8 *bssid, int mode, 2236 struct ieee80211_channel *channel, 2237 struct cfg80211_connect_params *sme, bool privacy, 2238 struct cfg80211_bss **sel_bss) 2239 { 2240 struct cfg80211_ssid req_ssid; 2241 int ret, auth_type = 0; 2242 struct cfg80211_bss *bss = NULL; 2243 u8 is_scanning_required = 0; 2244 2245 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid)); 2246 2247 req_ssid.ssid_len = ssid_len; 2248 if (ssid_len > IEEE80211_MAX_SSID_LEN) { 2249 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n"); 2250 return -EINVAL; 2251 } 2252 2253 memcpy(req_ssid.ssid, ssid, ssid_len); 2254 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) { 2255 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n"); 2256 return -EINVAL; 2257 } 2258 2259 /* As this is new association, clear locally stored 2260 * keys and security related flags */ 2261 priv->sec_info.wpa_enabled = false; 2262 priv->sec_info.wpa2_enabled = false; 2263 priv->wep_key_curr_index = 0; 2264 priv->sec_info.encryption_mode = 0; 2265 priv->sec_info.is_authtype_auto = 0; 2266 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1); 2267 2268 if (mode == NL80211_IFTYPE_ADHOC) { 2269 u16 enable = true; 2270 2271 /* set ibss coalescing_status */ 2272 ret = mwifiex_send_cmd( 2273 priv, 2274 HostCmd_CMD_802_11_IBSS_COALESCING_STATUS, 2275 HostCmd_ACT_GEN_SET, 0, &enable, true); 2276 if (ret) 2277 return ret; 2278 2279 /* "privacy" is set only for ad-hoc mode */ 2280 if (privacy) { 2281 /* 2282 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that 2283 * the firmware can find a matching network from the 2284 * scan. The cfg80211 does not give us the encryption 2285 * mode at this stage so just setting it to WEP here. 2286 */ 2287 priv->sec_info.encryption_mode = 2288 WLAN_CIPHER_SUITE_WEP104; 2289 priv->sec_info.authentication_mode = 2290 NL80211_AUTHTYPE_OPEN_SYSTEM; 2291 } 2292 2293 goto done; 2294 } 2295 2296 /* Now handle infra mode. "sme" is valid for infra mode only */ 2297 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { 2298 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; 2299 priv->sec_info.is_authtype_auto = 1; 2300 } else { 2301 auth_type = sme->auth_type; 2302 } 2303 2304 if (sme->crypto.n_ciphers_pairwise) { 2305 priv->sec_info.encryption_mode = 2306 sme->crypto.ciphers_pairwise[0]; 2307 priv->sec_info.authentication_mode = auth_type; 2308 } 2309 2310 if (sme->crypto.cipher_group) { 2311 priv->sec_info.encryption_mode = sme->crypto.cipher_group; 2312 priv->sec_info.authentication_mode = auth_type; 2313 } 2314 if (sme->ie) 2315 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len); 2316 2317 if (sme->key) { 2318 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) { 2319 mwifiex_dbg(priv->adapter, INFO, 2320 "info: setting wep encryption\t" 2321 "with key len %d\n", sme->key_len); 2322 priv->wep_key_curr_index = sme->key_idx; 2323 ret = mwifiex_set_encode(priv, NULL, sme->key, 2324 sme->key_len, sme->key_idx, 2325 NULL, 0); 2326 } 2327 } 2328 done: 2329 /* 2330 * Scan entries are valid for some time (15 sec). So we can save one 2331 * active scan time if we just try cfg80211_get_bss first. If it fails 2332 * then request scan and cfg80211_get_bss() again for final output. 2333 */ 2334 while (1) { 2335 if (is_scanning_required) { 2336 /* Do specific SSID scanning */ 2337 if (mwifiex_request_scan(priv, &req_ssid)) { 2338 mwifiex_dbg(priv->adapter, ERROR, "scan error\n"); 2339 return -EFAULT; 2340 } 2341 } 2342 2343 /* Find the BSS we want using available scan results */ 2344 if (mode == NL80211_IFTYPE_ADHOC) 2345 bss = cfg80211_get_bss(priv->wdev.wiphy, channel, 2346 bssid, ssid, ssid_len, 2347 IEEE80211_BSS_TYPE_IBSS, 2348 IEEE80211_PRIVACY_ANY); 2349 else 2350 bss = cfg80211_get_bss(priv->wdev.wiphy, channel, 2351 bssid, ssid, ssid_len, 2352 IEEE80211_BSS_TYPE_ESS, 2353 IEEE80211_PRIVACY_ANY); 2354 2355 if (!bss) { 2356 if (is_scanning_required) { 2357 mwifiex_dbg(priv->adapter, MSG, 2358 "assoc: requested bss not found in scan results\n"); 2359 break; 2360 } 2361 is_scanning_required = 1; 2362 } else { 2363 mwifiex_dbg(priv->adapter, MSG, 2364 "info: trying to associate to bssid %pM\n", 2365 bss->bssid); 2366 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN); 2367 break; 2368 } 2369 } 2370 2371 if (bss) 2372 cfg80211_ref_bss(priv->adapter->wiphy, bss); 2373 2374 ret = mwifiex_bss_start(priv, bss, &req_ssid); 2375 if (ret) 2376 goto cleanup; 2377 2378 if (mode == NL80211_IFTYPE_ADHOC) { 2379 /* Inform the BSS information to kernel, otherwise 2380 * kernel will give a panic after successful assoc */ 2381 if (mwifiex_cfg80211_inform_ibss_bss(priv)) { 2382 ret = -EFAULT; 2383 goto cleanup; 2384 } 2385 } 2386 2387 /* Pass the selected BSS entry to caller. */ 2388 if (sel_bss) { 2389 *sel_bss = bss; 2390 bss = NULL; 2391 } 2392 2393 cleanup: 2394 if (bss) 2395 cfg80211_put_bss(priv->adapter->wiphy, bss); 2396 return ret; 2397 } 2398 2399 /* 2400 * CFG802.11 operation handler for association request. 2401 * 2402 * This function does not work when the current mode is set to Ad-Hoc, or 2403 * when there is already an association procedure going on. The given BSS 2404 * information is used to associate. 2405 */ 2406 static int 2407 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, 2408 struct cfg80211_connect_params *sme) 2409 { 2410 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2411 struct mwifiex_adapter *adapter = priv->adapter; 2412 struct cfg80211_bss *bss = NULL; 2413 int ret; 2414 2415 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) { 2416 mwifiex_dbg(adapter, ERROR, 2417 "%s: reject infra assoc request in non-STA role\n", 2418 dev->name); 2419 return -EINVAL; 2420 } 2421 2422 if (priv->wdev.connected) { 2423 mwifiex_dbg(adapter, ERROR, 2424 "%s: already connected\n", dev->name); 2425 return -EALREADY; 2426 } 2427 2428 if (priv->scan_block) 2429 priv->scan_block = false; 2430 2431 if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags) || 2432 test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags)) { 2433 mwifiex_dbg(adapter, ERROR, 2434 "%s: Ignore connection.\t" 2435 "Card removed or FW in bad state\n", 2436 dev->name); 2437 return -EFAULT; 2438 } 2439 2440 mwifiex_dbg(adapter, INFO, 2441 "info: Trying to associate to bssid %pM\n", sme->bssid); 2442 2443 if (!mwifiex_stop_bg_scan(priv)) 2444 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0); 2445 2446 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid, 2447 priv->bss_mode, sme->channel, sme, 0, 2448 &bss); 2449 if (!ret) { 2450 cfg80211_connect_bss(priv->netdev, priv->cfg_bssid, bss, NULL, 2451 0, NULL, 0, WLAN_STATUS_SUCCESS, 2452 GFP_KERNEL, NL80211_TIMEOUT_UNSPECIFIED); 2453 mwifiex_dbg(priv->adapter, MSG, 2454 "info: associated to bssid %pM successfully\n", 2455 priv->cfg_bssid); 2456 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) && 2457 priv->adapter->auto_tdls && 2458 priv->bss_type == MWIFIEX_BSS_TYPE_STA) 2459 mwifiex_setup_auto_tdls_timer(priv); 2460 } else { 2461 mwifiex_dbg(priv->adapter, ERROR, 2462 "info: association to bssid %pM failed\n", 2463 priv->cfg_bssid); 2464 eth_zero_addr(priv->cfg_bssid); 2465 2466 if (ret > 0) 2467 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, 2468 NULL, 0, NULL, 0, ret, 2469 GFP_KERNEL); 2470 else 2471 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, 2472 NULL, 0, NULL, 0, 2473 WLAN_STATUS_UNSPECIFIED_FAILURE, 2474 GFP_KERNEL); 2475 } 2476 2477 return 0; 2478 } 2479 2480 /* 2481 * This function sets following parameters for ibss network. 2482 * - channel 2483 * - start band 2484 * - 11n flag 2485 * - secondary channel offset 2486 */ 2487 static int mwifiex_set_ibss_params(struct mwifiex_private *priv, 2488 struct cfg80211_ibss_params *params) 2489 { 2490 struct mwifiex_adapter *adapter = priv->adapter; 2491 int index = 0, i; 2492 u8 config_bands = 0; 2493 2494 if (params->chandef.chan->band == NL80211_BAND_2GHZ) { 2495 if (!params->basic_rates) { 2496 config_bands = BAND_B | BAND_G; 2497 } else { 2498 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) { 2499 /* 2500 * Rates below 6 Mbps in the table are CCK 2501 * rates; 802.11b and from 6 they are OFDM; 2502 * 802.11G 2503 */ 2504 if (mwifiex_rates[i].bitrate == 60) { 2505 index = 1 << i; 2506 break; 2507 } 2508 } 2509 2510 if (params->basic_rates < index) { 2511 config_bands = BAND_B; 2512 } else { 2513 config_bands = BAND_G; 2514 if (params->basic_rates % index) 2515 config_bands |= BAND_B; 2516 } 2517 } 2518 2519 if (cfg80211_get_chandef_type(¶ms->chandef) != 2520 NL80211_CHAN_NO_HT) 2521 config_bands |= BAND_G | BAND_GN; 2522 } else { 2523 if (cfg80211_get_chandef_type(¶ms->chandef) == 2524 NL80211_CHAN_NO_HT) 2525 config_bands = BAND_A; 2526 else 2527 config_bands = BAND_AN | BAND_A; 2528 } 2529 2530 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) { 2531 adapter->config_bands = config_bands; 2532 adapter->adhoc_start_band = config_bands; 2533 2534 if ((config_bands & BAND_GN) || (config_bands & BAND_AN)) 2535 adapter->adhoc_11n_enabled = true; 2536 else 2537 adapter->adhoc_11n_enabled = false; 2538 } 2539 2540 adapter->sec_chan_offset = 2541 mwifiex_chan_type_to_sec_chan_offset( 2542 cfg80211_get_chandef_type(¶ms->chandef)); 2543 priv->adhoc_channel = ieee80211_frequency_to_channel( 2544 params->chandef.chan->center_freq); 2545 2546 mwifiex_dbg(adapter, INFO, 2547 "info: set ibss band %d, chan %d, chan offset %d\n", 2548 config_bands, priv->adhoc_channel, 2549 adapter->sec_chan_offset); 2550 2551 return 0; 2552 } 2553 2554 /* 2555 * CFG802.11 operation handler to join an IBSS. 2556 * 2557 * This function does not work in any mode other than Ad-Hoc, or if 2558 * a join operation is already in progress. 2559 */ 2560 static int 2561 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2562 struct cfg80211_ibss_params *params) 2563 { 2564 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2565 int ret = 0; 2566 2567 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) { 2568 mwifiex_dbg(priv->adapter, ERROR, 2569 "request to join ibss received\t" 2570 "when station is not in ibss mode\n"); 2571 goto done; 2572 } 2573 2574 mwifiex_dbg(priv->adapter, MSG, "info: trying to join to bssid %pM\n", 2575 params->bssid); 2576 2577 mwifiex_set_ibss_params(priv, params); 2578 2579 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid, 2580 params->bssid, priv->bss_mode, 2581 params->chandef.chan, NULL, 2582 params->privacy, NULL); 2583 done: 2584 if (!ret) { 2585 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, 2586 params->chandef.chan, GFP_KERNEL); 2587 mwifiex_dbg(priv->adapter, MSG, 2588 "info: joined/created adhoc network with bssid\t" 2589 "%pM successfully\n", priv->cfg_bssid); 2590 } else { 2591 mwifiex_dbg(priv->adapter, ERROR, 2592 "info: failed creating/joining adhoc network\n"); 2593 } 2594 2595 return ret; 2596 } 2597 2598 /* 2599 * CFG802.11 operation handler to leave an IBSS. 2600 * 2601 * This function does not work if a leave operation is 2602 * already in progress. 2603 */ 2604 static int 2605 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2606 { 2607 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2608 2609 mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n", 2610 priv->cfg_bssid); 2611 if (mwifiex_deauthenticate(priv, NULL)) 2612 return -EFAULT; 2613 2614 eth_zero_addr(priv->cfg_bssid); 2615 2616 return 0; 2617 } 2618 2619 /* 2620 * CFG802.11 operation handler for scan request. 2621 * 2622 * This function issues a scan request to the firmware based upon 2623 * the user specified scan configuration. On successful completion, 2624 * it also informs the results. 2625 */ 2626 static int 2627 mwifiex_cfg80211_scan(struct wiphy *wiphy, 2628 struct cfg80211_scan_request *request) 2629 { 2630 struct net_device *dev = request->wdev->netdev; 2631 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2632 int i, offset, ret; 2633 struct ieee80211_channel *chan; 2634 struct ieee_types_header *ie; 2635 struct mwifiex_user_scan_cfg *user_scan_cfg; 2636 u8 mac_addr[ETH_ALEN]; 2637 2638 mwifiex_dbg(priv->adapter, CMD, 2639 "info: received scan request on %s\n", dev->name); 2640 2641 /* Block scan request if scan operation or scan cleanup when interface 2642 * is disabled is in process 2643 */ 2644 if (priv->scan_request || priv->scan_aborting) { 2645 mwifiex_dbg(priv->adapter, WARN, 2646 "cmd: Scan already in process..\n"); 2647 return -EBUSY; 2648 } 2649 2650 if (!priv->wdev.connected && priv->scan_block) 2651 priv->scan_block = false; 2652 2653 if (!mwifiex_stop_bg_scan(priv)) 2654 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0); 2655 2656 user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL); 2657 if (!user_scan_cfg) 2658 return -ENOMEM; 2659 2660 priv->scan_request = request; 2661 2662 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) { 2663 get_random_mask_addr(mac_addr, request->mac_addr, 2664 request->mac_addr_mask); 2665 ether_addr_copy(request->mac_addr, mac_addr); 2666 ether_addr_copy(user_scan_cfg->random_mac, mac_addr); 2667 } 2668 2669 user_scan_cfg->num_ssids = request->n_ssids; 2670 user_scan_cfg->ssid_list = request->ssids; 2671 2672 if (request->ie && request->ie_len) { 2673 offset = 0; 2674 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2675 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR) 2676 continue; 2677 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN; 2678 ie = (struct ieee_types_header *)(request->ie + offset); 2679 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len); 2680 offset += sizeof(*ie) + ie->len; 2681 2682 if (offset >= request->ie_len) 2683 break; 2684 } 2685 } 2686 2687 for (i = 0; i < min_t(u32, request->n_channels, 2688 MWIFIEX_USER_SCAN_CHAN_MAX); i++) { 2689 chan = request->channels[i]; 2690 user_scan_cfg->chan_list[i].chan_number = chan->hw_value; 2691 user_scan_cfg->chan_list[i].radio_type = chan->band; 2692 2693 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids) 2694 user_scan_cfg->chan_list[i].scan_type = 2695 MWIFIEX_SCAN_TYPE_PASSIVE; 2696 else 2697 user_scan_cfg->chan_list[i].scan_type = 2698 MWIFIEX_SCAN_TYPE_ACTIVE; 2699 2700 user_scan_cfg->chan_list[i].scan_time = 0; 2701 } 2702 2703 if (priv->adapter->scan_chan_gap_enabled && 2704 mwifiex_is_any_intf_active(priv)) 2705 user_scan_cfg->scan_chan_gap = 2706 priv->adapter->scan_chan_gap_time; 2707 2708 ret = mwifiex_scan_networks(priv, user_scan_cfg); 2709 kfree(user_scan_cfg); 2710 if (ret) { 2711 mwifiex_dbg(priv->adapter, ERROR, 2712 "scan failed: %d\n", ret); 2713 priv->scan_aborting = false; 2714 priv->scan_request = NULL; 2715 return ret; 2716 } 2717 2718 if (request->ie && request->ie_len) { 2719 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2720 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) { 2721 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR; 2722 memset(&priv->vs_ie[i].ie, 0, 2723 MWIFIEX_MAX_VSIE_LEN); 2724 } 2725 } 2726 } 2727 return 0; 2728 } 2729 2730 /* CFG802.11 operation handler for sched_scan_start. 2731 * 2732 * This function issues a bgscan config request to the firmware based upon 2733 * the user specified sched_scan configuration. On successful completion, 2734 * firmware will generate BGSCAN_REPORT event, driver should issue bgscan 2735 * query command to get sched_scan results from firmware. 2736 */ 2737 static int 2738 mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy, 2739 struct net_device *dev, 2740 struct cfg80211_sched_scan_request *request) 2741 { 2742 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2743 int i, offset; 2744 struct ieee80211_channel *chan; 2745 struct mwifiex_bg_scan_cfg *bgscan_cfg; 2746 struct ieee_types_header *ie; 2747 2748 if (!request || (!request->n_ssids && !request->n_match_sets)) { 2749 wiphy_err(wiphy, "%s : Invalid Sched_scan parameters", 2750 __func__); 2751 return -EINVAL; 2752 } 2753 2754 wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ", 2755 request->n_ssids, request->n_match_sets); 2756 wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n", 2757 request->n_channels, request->scan_plans->interval, 2758 (int)request->ie_len); 2759 2760 bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL); 2761 if (!bgscan_cfg) 2762 return -ENOMEM; 2763 2764 if (priv->scan_request || priv->scan_aborting) 2765 bgscan_cfg->start_later = true; 2766 2767 bgscan_cfg->num_ssids = request->n_match_sets; 2768 bgscan_cfg->ssid_list = request->match_sets; 2769 2770 if (request->ie && request->ie_len) { 2771 offset = 0; 2772 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2773 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR) 2774 continue; 2775 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN; 2776 ie = (struct ieee_types_header *)(request->ie + offset); 2777 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len); 2778 offset += sizeof(*ie) + ie->len; 2779 2780 if (offset >= request->ie_len) 2781 break; 2782 } 2783 } 2784 2785 for (i = 0; i < min_t(u32, request->n_channels, 2786 MWIFIEX_BG_SCAN_CHAN_MAX); i++) { 2787 chan = request->channels[i]; 2788 bgscan_cfg->chan_list[i].chan_number = chan->hw_value; 2789 bgscan_cfg->chan_list[i].radio_type = chan->band; 2790 2791 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids) 2792 bgscan_cfg->chan_list[i].scan_type = 2793 MWIFIEX_SCAN_TYPE_PASSIVE; 2794 else 2795 bgscan_cfg->chan_list[i].scan_type = 2796 MWIFIEX_SCAN_TYPE_ACTIVE; 2797 2798 bgscan_cfg->chan_list[i].scan_time = 0; 2799 } 2800 2801 bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels, 2802 MWIFIEX_BG_SCAN_CHAN_MAX); 2803 2804 /* Use at least 15 second for per scan cycle */ 2805 bgscan_cfg->scan_interval = (request->scan_plans->interval > 2806 MWIFIEX_BGSCAN_INTERVAL) ? 2807 request->scan_plans->interval : 2808 MWIFIEX_BGSCAN_INTERVAL; 2809 2810 bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT; 2811 bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH | 2812 MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE; 2813 bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA; 2814 bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET; 2815 bgscan_cfg->enable = true; 2816 if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) { 2817 bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH; 2818 bgscan_cfg->rssi_threshold = request->min_rssi_thold; 2819 } 2820 2821 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG, 2822 HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) { 2823 kfree(bgscan_cfg); 2824 return -EFAULT; 2825 } 2826 2827 priv->sched_scanning = true; 2828 2829 kfree(bgscan_cfg); 2830 return 0; 2831 } 2832 2833 /* CFG802.11 operation handler for sched_scan_stop. 2834 * 2835 * This function issues a bgscan config command to disable 2836 * previous bgscan configuration in the firmware 2837 */ 2838 static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy, 2839 struct net_device *dev, u64 reqid) 2840 { 2841 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2842 2843 wiphy_info(wiphy, "sched scan stop!"); 2844 mwifiex_stop_bg_scan(priv); 2845 2846 return 0; 2847 } 2848 2849 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info, 2850 struct mwifiex_private *priv) 2851 { 2852 struct mwifiex_adapter *adapter = priv->adapter; 2853 2854 vht_info->vht_supported = true; 2855 2856 vht_info->cap = adapter->hw_dot_11ac_dev_cap; 2857 /* Update MCS support for VHT */ 2858 vht_info->vht_mcs.rx_mcs_map = cpu_to_le16( 2859 adapter->hw_dot_11ac_mcs_support & 0xFFFF); 2860 vht_info->vht_mcs.rx_highest = 0; 2861 vht_info->vht_mcs.tx_mcs_map = cpu_to_le16( 2862 adapter->hw_dot_11ac_mcs_support >> 16); 2863 vht_info->vht_mcs.tx_highest = 0; 2864 } 2865 2866 /* 2867 * This function sets up the CFG802.11 specific HT capability fields 2868 * with default values. 2869 * 2870 * The following default values are set - 2871 * - HT Supported = True 2872 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K 2873 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE 2874 * - HT Capabilities supported by firmware 2875 * - MCS information, Rx mask = 0xff 2876 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01) 2877 */ 2878 static void 2879 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info, 2880 struct mwifiex_private *priv) 2881 { 2882 int rx_mcs_supp; 2883 struct ieee80211_mcs_info mcs_set; 2884 u8 *mcs = (u8 *)&mcs_set; 2885 struct mwifiex_adapter *adapter = priv->adapter; 2886 2887 ht_info->ht_supported = true; 2888 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; 2889 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; 2890 2891 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); 2892 2893 /* Fill HT capability information */ 2894 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) 2895 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 2896 else 2897 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 2898 2899 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap)) 2900 ht_info->cap |= IEEE80211_HT_CAP_SGI_20; 2901 else 2902 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20; 2903 2904 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap)) 2905 ht_info->cap |= IEEE80211_HT_CAP_SGI_40; 2906 else 2907 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40; 2908 2909 if (adapter->user_dev_mcs_support == HT_STREAM_2X2) 2910 ht_info->cap |= 2 << IEEE80211_HT_CAP_RX_STBC_SHIFT; 2911 else 2912 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT; 2913 2914 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap)) 2915 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC; 2916 else 2917 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC; 2918 2919 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap)) 2920 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD; 2921 else 2922 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD; 2923 2924 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap)) 2925 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT; 2926 else 2927 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT; 2928 2929 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap)) 2930 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING; 2931 else 2932 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING; 2933 2934 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU; 2935 ht_info->cap |= IEEE80211_HT_CAP_SM_PS; 2936 2937 rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support); 2938 /* Set MCS for 1x1/2x2 */ 2939 memset(mcs, 0xff, rx_mcs_supp); 2940 /* Clear all the other values */ 2941 memset(&mcs[rx_mcs_supp], 0, 2942 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp); 2943 if (priv->bss_mode == NL80211_IFTYPE_STATION || 2944 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) 2945 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */ 2946 SETHT_MCS32(mcs_set.rx_mask); 2947 2948 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info)); 2949 2950 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; 2951 } 2952 2953 /* 2954 * create a new virtual interface with the given name and name assign type 2955 */ 2956 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy, 2957 const char *name, 2958 unsigned char name_assign_type, 2959 enum nl80211_iftype type, 2960 struct vif_params *params) 2961 { 2962 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 2963 struct mwifiex_private *priv; 2964 struct net_device *dev; 2965 void *mdev_priv; 2966 int ret; 2967 2968 if (!adapter) 2969 return ERR_PTR(-EFAULT); 2970 2971 switch (type) { 2972 case NL80211_IFTYPE_UNSPECIFIED: 2973 case NL80211_IFTYPE_STATION: 2974 case NL80211_IFTYPE_ADHOC: 2975 if (adapter->curr_iface_comb.sta_intf == 2976 adapter->iface_limit.sta_intf) { 2977 mwifiex_dbg(adapter, ERROR, 2978 "cannot create multiple sta/adhoc ifaces\n"); 2979 return ERR_PTR(-EINVAL); 2980 } 2981 2982 priv = mwifiex_get_unused_priv_by_bss_type( 2983 adapter, MWIFIEX_BSS_TYPE_STA); 2984 if (!priv) { 2985 mwifiex_dbg(adapter, ERROR, 2986 "could not get free private struct\n"); 2987 return ERR_PTR(-EFAULT); 2988 } 2989 2990 priv->wdev.wiphy = wiphy; 2991 priv->wdev.iftype = NL80211_IFTYPE_STATION; 2992 2993 if (type == NL80211_IFTYPE_UNSPECIFIED) 2994 priv->bss_mode = NL80211_IFTYPE_STATION; 2995 else 2996 priv->bss_mode = type; 2997 2998 priv->bss_type = MWIFIEX_BSS_TYPE_STA; 2999 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 3000 priv->bss_priority = 0; 3001 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 3002 3003 break; 3004 case NL80211_IFTYPE_AP: 3005 if (adapter->curr_iface_comb.uap_intf == 3006 adapter->iface_limit.uap_intf) { 3007 mwifiex_dbg(adapter, ERROR, 3008 "cannot create multiple AP ifaces\n"); 3009 return ERR_PTR(-EINVAL); 3010 } 3011 3012 priv = mwifiex_get_unused_priv_by_bss_type( 3013 adapter, MWIFIEX_BSS_TYPE_UAP); 3014 if (!priv) { 3015 mwifiex_dbg(adapter, ERROR, 3016 "could not get free private struct\n"); 3017 return ERR_PTR(-EFAULT); 3018 } 3019 3020 priv->wdev.wiphy = wiphy; 3021 priv->wdev.iftype = NL80211_IFTYPE_AP; 3022 3023 priv->bss_type = MWIFIEX_BSS_TYPE_UAP; 3024 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 3025 priv->bss_priority = 0; 3026 priv->bss_role = MWIFIEX_BSS_ROLE_UAP; 3027 priv->bss_started = 0; 3028 priv->bss_mode = type; 3029 3030 break; 3031 case NL80211_IFTYPE_P2P_CLIENT: 3032 if (adapter->curr_iface_comb.p2p_intf == 3033 adapter->iface_limit.p2p_intf) { 3034 mwifiex_dbg(adapter, ERROR, 3035 "cannot create multiple P2P ifaces\n"); 3036 return ERR_PTR(-EINVAL); 3037 } 3038 3039 priv = mwifiex_get_unused_priv_by_bss_type( 3040 adapter, MWIFIEX_BSS_TYPE_P2P); 3041 if (!priv) { 3042 mwifiex_dbg(adapter, ERROR, 3043 "could not get free private struct\n"); 3044 return ERR_PTR(-EFAULT); 3045 } 3046 3047 priv->wdev.wiphy = wiphy; 3048 /* At start-up, wpa_supplicant tries to change the interface 3049 * to NL80211_IFTYPE_STATION if it is not managed mode. 3050 */ 3051 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT; 3052 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT; 3053 3054 /* Setting bss_type to P2P tells firmware that this interface 3055 * is receiving P2P peers found during find phase and doing 3056 * action frame handshake. 3057 */ 3058 priv->bss_type = MWIFIEX_BSS_TYPE_P2P; 3059 3060 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 3061 priv->bss_priority = 0; 3062 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 3063 priv->bss_started = 0; 3064 3065 if (mwifiex_cfg80211_init_p2p_client(priv)) { 3066 memset(&priv->wdev, 0, sizeof(priv->wdev)); 3067 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 3068 return ERR_PTR(-EFAULT); 3069 } 3070 3071 break; 3072 default: 3073 mwifiex_dbg(adapter, ERROR, "type not supported\n"); 3074 return ERR_PTR(-EINVAL); 3075 } 3076 3077 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name, 3078 name_assign_type, ether_setup, 3079 IEEE80211_NUM_ACS, 1); 3080 if (!dev) { 3081 mwifiex_dbg(adapter, ERROR, 3082 "no memory available for netdevice\n"); 3083 ret = -ENOMEM; 3084 goto err_alloc_netdev; 3085 } 3086 3087 mwifiex_init_priv_params(priv, dev); 3088 3089 priv->netdev = dev; 3090 3091 if (!adapter->mfg_mode) { 3092 mwifiex_set_mac_address(priv, dev, false, NULL); 3093 3094 ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 3095 HostCmd_ACT_GEN_SET, 0, NULL, true); 3096 if (ret) 3097 goto err_set_bss_mode; 3098 3099 ret = mwifiex_sta_init_cmd(priv, false, false); 3100 if (ret) 3101 goto err_sta_init; 3102 } 3103 3104 mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv); 3105 if (adapter->is_hw_11ac_capable) 3106 mwifiex_setup_vht_caps( 3107 &wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv); 3108 3109 if (adapter->config_bands & BAND_A) 3110 mwifiex_setup_ht_caps( 3111 &wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv); 3112 3113 if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable) 3114 mwifiex_setup_vht_caps( 3115 &wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv); 3116 3117 dev_net_set(dev, wiphy_net(wiphy)); 3118 dev->ieee80211_ptr = &priv->wdev; 3119 dev->ieee80211_ptr->iftype = priv->bss_mode; 3120 SET_NETDEV_DEV(dev, wiphy_dev(wiphy)); 3121 3122 dev->flags |= IFF_BROADCAST | IFF_MULTICAST; 3123 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT; 3124 dev->needed_headroom = MWIFIEX_MIN_DATA_HEADER_LEN; 3125 dev->ethtool_ops = &mwifiex_ethtool_ops; 3126 3127 mdev_priv = netdev_priv(dev); 3128 *((unsigned long *) mdev_priv) = (unsigned long) priv; 3129 3130 SET_NETDEV_DEV(dev, adapter->dev); 3131 3132 priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s", 3133 WQ_HIGHPRI | 3134 WQ_MEM_RECLAIM | 3135 WQ_UNBOUND, 0, name); 3136 if (!priv->dfs_cac_workqueue) { 3137 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS CAC queue\n"); 3138 ret = -ENOMEM; 3139 goto err_alloc_cac; 3140 } 3141 3142 INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue); 3143 3144 priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s", 3145 WQ_HIGHPRI | WQ_UNBOUND | 3146 WQ_MEM_RECLAIM, 0, name); 3147 if (!priv->dfs_chan_sw_workqueue) { 3148 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS channel sw queue\n"); 3149 ret = -ENOMEM; 3150 goto err_alloc_chsw; 3151 } 3152 3153 INIT_DELAYED_WORK(&priv->dfs_chan_sw_work, 3154 mwifiex_dfs_chan_sw_work_queue); 3155 3156 mutex_init(&priv->async_mutex); 3157 3158 /* Register network device */ 3159 if (cfg80211_register_netdevice(dev)) { 3160 mwifiex_dbg(adapter, ERROR, "cannot register network device\n"); 3161 ret = -EFAULT; 3162 goto err_reg_netdev; 3163 } 3164 3165 mwifiex_dbg(adapter, INFO, 3166 "info: %s: Marvell 802.11 Adapter\n", dev->name); 3167 3168 #ifdef CONFIG_DEBUG_FS 3169 mwifiex_dev_debugfs_init(priv); 3170 #endif 3171 3172 update_vif_type_counter(adapter, type, +1); 3173 3174 return &priv->wdev; 3175 3176 err_reg_netdev: 3177 destroy_workqueue(priv->dfs_chan_sw_workqueue); 3178 priv->dfs_chan_sw_workqueue = NULL; 3179 err_alloc_chsw: 3180 destroy_workqueue(priv->dfs_cac_workqueue); 3181 priv->dfs_cac_workqueue = NULL; 3182 err_alloc_cac: 3183 free_netdev(dev); 3184 priv->netdev = NULL; 3185 err_sta_init: 3186 err_set_bss_mode: 3187 err_alloc_netdev: 3188 memset(&priv->wdev, 0, sizeof(priv->wdev)); 3189 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 3190 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; 3191 return ERR_PTR(ret); 3192 } 3193 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf); 3194 3195 /* 3196 * del_virtual_intf: remove the virtual interface determined by dev 3197 */ 3198 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) 3199 { 3200 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 3201 struct mwifiex_adapter *adapter = priv->adapter; 3202 struct sk_buff *skb, *tmp; 3203 3204 #ifdef CONFIG_DEBUG_FS 3205 mwifiex_dev_debugfs_remove(priv); 3206 #endif 3207 3208 if (priv->sched_scanning) 3209 priv->sched_scanning = false; 3210 3211 mwifiex_stop_net_dev_queue(priv->netdev, adapter); 3212 3213 skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) { 3214 skb_unlink(skb, &priv->bypass_txq); 3215 mwifiex_write_data_complete(priv->adapter, skb, 0, -1); 3216 } 3217 3218 if (netif_carrier_ok(priv->netdev)) 3219 netif_carrier_off(priv->netdev); 3220 3221 if (wdev->netdev->reg_state == NETREG_REGISTERED) 3222 cfg80211_unregister_netdevice(wdev->netdev); 3223 3224 if (priv->dfs_cac_workqueue) { 3225 destroy_workqueue(priv->dfs_cac_workqueue); 3226 priv->dfs_cac_workqueue = NULL; 3227 } 3228 3229 if (priv->dfs_chan_sw_workqueue) { 3230 destroy_workqueue(priv->dfs_chan_sw_workqueue); 3231 priv->dfs_chan_sw_workqueue = NULL; 3232 } 3233 /* Clear the priv in adapter */ 3234 priv->netdev = NULL; 3235 3236 update_vif_type_counter(adapter, priv->bss_mode, -1); 3237 3238 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; 3239 3240 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA || 3241 GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) 3242 kfree(priv->hist_data); 3243 3244 return 0; 3245 } 3246 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf); 3247 3248 static bool 3249 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq, 3250 u8 max_byte_seq) 3251 { 3252 int j, k, valid_byte_cnt = 0; 3253 bool dont_care_byte = false; 3254 3255 for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) { 3256 for (k = 0; k < 8; k++) { 3257 if (pat->mask[j] & 1 << k) { 3258 memcpy(byte_seq + valid_byte_cnt, 3259 &pat->pattern[j * 8 + k], 1); 3260 valid_byte_cnt++; 3261 if (dont_care_byte) 3262 return false; 3263 } else { 3264 if (valid_byte_cnt) 3265 dont_care_byte = true; 3266 } 3267 3268 /* wildcard bytes record as the offset 3269 * before the valid byte 3270 */ 3271 if (!valid_byte_cnt && !dont_care_byte) 3272 pat->pkt_offset++; 3273 3274 if (valid_byte_cnt > max_byte_seq) 3275 return false; 3276 } 3277 } 3278 3279 byte_seq[max_byte_seq] = valid_byte_cnt; 3280 3281 return true; 3282 } 3283 3284 #ifdef CONFIG_PM 3285 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv, 3286 struct mwifiex_mef_entry *mef_entry) 3287 { 3288 int i, filt_num = 0, num_ipv4 = 0; 3289 struct in_device *in_dev; 3290 struct in_ifaddr *ifa; 3291 __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR]; 3292 struct mwifiex_adapter *adapter = priv->adapter; 3293 3294 mef_entry->mode = MEF_MODE_HOST_SLEEP; 3295 mef_entry->action = MEF_ACTION_AUTO_ARP; 3296 3297 /* Enable ARP offload feature */ 3298 memset(ips, 0, sizeof(ips)); 3299 for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) { 3300 if (adapter->priv[i]->netdev) { 3301 in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev); 3302 if (!in_dev) 3303 continue; 3304 ifa = rtnl_dereference(in_dev->ifa_list); 3305 if (!ifa || !ifa->ifa_local) 3306 continue; 3307 ips[i] = ifa->ifa_local; 3308 num_ipv4++; 3309 } 3310 } 3311 3312 for (i = 0; i < num_ipv4; i++) { 3313 if (!ips[i]) 3314 continue; 3315 mef_entry->filter[filt_num].repeat = 1; 3316 memcpy(mef_entry->filter[filt_num].byte_seq, 3317 (u8 *)&ips[i], sizeof(ips[i])); 3318 mef_entry->filter[filt_num]. 3319 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3320 sizeof(ips[i]); 3321 mef_entry->filter[filt_num].offset = 46; 3322 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3323 if (filt_num) { 3324 mef_entry->filter[filt_num].filt_action = 3325 TYPE_OR; 3326 } 3327 filt_num++; 3328 } 3329 3330 mef_entry->filter[filt_num].repeat = 1; 3331 mef_entry->filter[filt_num].byte_seq[0] = 0x08; 3332 mef_entry->filter[filt_num].byte_seq[1] = 0x06; 3333 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2; 3334 mef_entry->filter[filt_num].offset = 20; 3335 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3336 mef_entry->filter[filt_num].filt_action = TYPE_AND; 3337 } 3338 3339 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv, 3340 struct mwifiex_ds_mef_cfg *mef_cfg, 3341 struct mwifiex_mef_entry *mef_entry, 3342 struct cfg80211_wowlan *wowlan) 3343 { 3344 int i, filt_num = 0, ret = 0; 3345 bool first_pat = true; 3346 u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1]; 3347 static const u8 ipv4_mc_mac[] = {0x33, 0x33}; 3348 static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e}; 3349 3350 mef_entry->mode = MEF_MODE_HOST_SLEEP; 3351 mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST; 3352 3353 for (i = 0; i < wowlan->n_patterns; i++) { 3354 memset(byte_seq, 0, sizeof(byte_seq)); 3355 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i], 3356 byte_seq, 3357 MWIFIEX_MEF_MAX_BYTESEQ)) { 3358 mwifiex_dbg(priv->adapter, ERROR, 3359 "Pattern not supported\n"); 3360 return -EOPNOTSUPP; 3361 } 3362 3363 if (!wowlan->patterns[i].pkt_offset) { 3364 if (is_unicast_ether_addr(byte_seq) && 3365 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) { 3366 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST; 3367 continue; 3368 } else if (is_broadcast_ether_addr(byte_seq)) { 3369 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST; 3370 continue; 3371 } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) && 3372 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) || 3373 (!memcmp(byte_seq, ipv6_mc_mac, 3) && 3374 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) { 3375 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST; 3376 continue; 3377 } 3378 } 3379 mef_entry->filter[filt_num].repeat = 1; 3380 mef_entry->filter[filt_num].offset = 3381 wowlan->patterns[i].pkt_offset; 3382 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq, 3383 sizeof(byte_seq)); 3384 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3385 3386 if (first_pat) { 3387 first_pat = false; 3388 mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n"); 3389 } else { 3390 mef_entry->filter[filt_num].filt_action = TYPE_AND; 3391 } 3392 3393 filt_num++; 3394 } 3395 3396 if (wowlan->magic_pkt) { 3397 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST; 3398 mef_entry->filter[filt_num].repeat = 16; 3399 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr, 3400 ETH_ALEN); 3401 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3402 ETH_ALEN; 3403 mef_entry->filter[filt_num].offset = 28; 3404 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3405 if (filt_num) 3406 mef_entry->filter[filt_num].filt_action = TYPE_OR; 3407 3408 filt_num++; 3409 mef_entry->filter[filt_num].repeat = 16; 3410 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr, 3411 ETH_ALEN); 3412 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3413 ETH_ALEN; 3414 mef_entry->filter[filt_num].offset = 56; 3415 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3416 mef_entry->filter[filt_num].filt_action = TYPE_OR; 3417 mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n"); 3418 } 3419 return ret; 3420 } 3421 3422 static int mwifiex_set_mef_filter(struct mwifiex_private *priv, 3423 struct cfg80211_wowlan *wowlan) 3424 { 3425 int ret = 0, num_entries = 1; 3426 struct mwifiex_ds_mef_cfg mef_cfg; 3427 struct mwifiex_mef_entry *mef_entry; 3428 3429 if (wowlan->n_patterns || wowlan->magic_pkt) 3430 num_entries++; 3431 3432 mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL); 3433 if (!mef_entry) 3434 return -ENOMEM; 3435 3436 memset(&mef_cfg, 0, sizeof(mef_cfg)); 3437 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST | 3438 MWIFIEX_CRITERIA_UNICAST; 3439 mef_cfg.num_entries = num_entries; 3440 mef_cfg.mef_entry = mef_entry; 3441 3442 mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]); 3443 3444 if (wowlan->n_patterns || wowlan->magic_pkt) { 3445 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg, 3446 &mef_entry[1], wowlan); 3447 if (ret) 3448 goto err; 3449 } 3450 3451 if (!mef_cfg.criteria) 3452 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST | 3453 MWIFIEX_CRITERIA_UNICAST | 3454 MWIFIEX_CRITERIA_MULTICAST; 3455 3456 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG, 3457 HostCmd_ACT_GEN_SET, 0, 3458 &mef_cfg, true); 3459 3460 err: 3461 kfree(mef_entry); 3462 return ret; 3463 } 3464 3465 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy, 3466 struct cfg80211_wowlan *wowlan) 3467 { 3468 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3469 struct mwifiex_ds_hs_cfg hs_cfg; 3470 int i, ret = 0, retry_num = 10; 3471 struct mwifiex_private *priv; 3472 struct mwifiex_private *sta_priv = 3473 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3474 3475 sta_priv->scan_aborting = true; 3476 for (i = 0; i < adapter->priv_num; i++) { 3477 priv = adapter->priv[i]; 3478 mwifiex_abort_cac(priv); 3479 } 3480 3481 mwifiex_cancel_all_pending_cmd(adapter); 3482 3483 for (i = 0; i < adapter->priv_num; i++) { 3484 priv = adapter->priv[i]; 3485 if (priv && priv->netdev) 3486 netif_device_detach(priv->netdev); 3487 } 3488 3489 for (i = 0; i < retry_num; i++) { 3490 if (!mwifiex_wmm_lists_empty(adapter) || 3491 !mwifiex_bypass_txlist_empty(adapter) || 3492 !skb_queue_empty(&adapter->tx_data_q)) 3493 usleep_range(10000, 15000); 3494 else 3495 break; 3496 } 3497 3498 if (!wowlan) { 3499 mwifiex_dbg(adapter, INFO, 3500 "None of the WOWLAN triggers enabled\n"); 3501 ret = 0; 3502 goto done; 3503 } 3504 3505 if (!sta_priv->media_connected && !wowlan->nd_config) { 3506 mwifiex_dbg(adapter, ERROR, 3507 "Can not configure WOWLAN in disconnected state\n"); 3508 ret = 0; 3509 goto done; 3510 } 3511 3512 ret = mwifiex_set_mef_filter(sta_priv, wowlan); 3513 if (ret) { 3514 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n"); 3515 goto done; 3516 } 3517 3518 memset(&hs_cfg, 0, sizeof(hs_cfg)); 3519 hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions); 3520 3521 if (wowlan->nd_config) { 3522 mwifiex_dbg(adapter, INFO, "Wake on net detect\n"); 3523 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT; 3524 mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev, 3525 wowlan->nd_config); 3526 } 3527 3528 if (wowlan->disconnect) { 3529 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT; 3530 mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n"); 3531 } 3532 3533 hs_cfg.is_invoke_hostcmd = false; 3534 hs_cfg.gpio = adapter->hs_cfg.gpio; 3535 hs_cfg.gap = adapter->hs_cfg.gap; 3536 ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET, 3537 MWIFIEX_SYNC_CMD, &hs_cfg); 3538 if (ret) 3539 mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n"); 3540 3541 done: 3542 sta_priv->scan_aborting = false; 3543 return ret; 3544 } 3545 3546 static int mwifiex_cfg80211_resume(struct wiphy *wiphy) 3547 { 3548 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3549 struct mwifiex_private *priv; 3550 struct mwifiex_ds_wakeup_reason wakeup_reason; 3551 struct cfg80211_wowlan_wakeup wakeup_report; 3552 int i; 3553 bool report_wakeup_reason = true; 3554 3555 for (i = 0; i < adapter->priv_num; i++) { 3556 priv = adapter->priv[i]; 3557 if (priv && priv->netdev) 3558 netif_device_attach(priv->netdev); 3559 } 3560 3561 if (!wiphy->wowlan_config) 3562 goto done; 3563 3564 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3565 mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD, 3566 &wakeup_reason); 3567 memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup)); 3568 3569 wakeup_report.pattern_idx = -1; 3570 3571 switch (wakeup_reason.hs_wakeup_reason) { 3572 case NO_HSWAKEUP_REASON: 3573 break; 3574 case BCAST_DATA_MATCHED: 3575 break; 3576 case MCAST_DATA_MATCHED: 3577 break; 3578 case UCAST_DATA_MATCHED: 3579 break; 3580 case MASKTABLE_EVENT_MATCHED: 3581 break; 3582 case NON_MASKABLE_EVENT_MATCHED: 3583 if (wiphy->wowlan_config->disconnect) 3584 wakeup_report.disconnect = true; 3585 if (wiphy->wowlan_config->nd_config) 3586 wakeup_report.net_detect = adapter->nd_info; 3587 break; 3588 case NON_MASKABLE_CONDITION_MATCHED: 3589 break; 3590 case MAGIC_PATTERN_MATCHED: 3591 if (wiphy->wowlan_config->magic_pkt) 3592 wakeup_report.magic_pkt = true; 3593 if (wiphy->wowlan_config->n_patterns) 3594 wakeup_report.pattern_idx = 1; 3595 break; 3596 case GTK_REKEY_FAILURE: 3597 if (wiphy->wowlan_config->gtk_rekey_failure) 3598 wakeup_report.gtk_rekey_failure = true; 3599 break; 3600 default: 3601 report_wakeup_reason = false; 3602 break; 3603 } 3604 3605 if (report_wakeup_reason) 3606 cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report, 3607 GFP_KERNEL); 3608 3609 done: 3610 if (adapter->nd_info) { 3611 for (i = 0 ; i < adapter->nd_info->n_matches ; i++) 3612 kfree(adapter->nd_info->matches[i]); 3613 kfree(adapter->nd_info); 3614 adapter->nd_info = NULL; 3615 } 3616 3617 return 0; 3618 } 3619 3620 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy, 3621 bool enabled) 3622 { 3623 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3624 3625 device_set_wakeup_enable(adapter->dev, enabled); 3626 } 3627 3628 static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev, 3629 struct cfg80211_gtk_rekey_data *data) 3630 { 3631 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3632 3633 if (!ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info)) 3634 return -EOPNOTSUPP; 3635 3636 return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG, 3637 HostCmd_ACT_GEN_SET, 0, data, true); 3638 } 3639 3640 #endif 3641 3642 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq) 3643 { 3644 static const u8 ipv4_mc_mac[] = {0x33, 0x33}; 3645 static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e}; 3646 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff}; 3647 3648 if ((byte_seq[0] & 0x01) && 3649 (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1)) 3650 return PACKET_TYPE_UNICAST; 3651 else if (!memcmp(byte_seq, bc_mac, 4)) 3652 return PACKET_TYPE_BROADCAST; 3653 else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) && 3654 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) || 3655 (!memcmp(byte_seq, ipv6_mc_mac, 3) && 3656 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3)) 3657 return PACKET_TYPE_MULTICAST; 3658 3659 return 0; 3660 } 3661 3662 static int 3663 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv, 3664 struct cfg80211_coalesce_rules *crule, 3665 struct mwifiex_coalesce_rule *mrule) 3666 { 3667 u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1]; 3668 struct filt_field_param *param; 3669 int i; 3670 3671 mrule->max_coalescing_delay = crule->delay; 3672 3673 param = mrule->params; 3674 3675 for (i = 0; i < crule->n_patterns; i++) { 3676 memset(byte_seq, 0, sizeof(byte_seq)); 3677 if (!mwifiex_is_pattern_supported(&crule->patterns[i], 3678 byte_seq, 3679 MWIFIEX_COALESCE_MAX_BYTESEQ)) { 3680 mwifiex_dbg(priv->adapter, ERROR, 3681 "Pattern not supported\n"); 3682 return -EOPNOTSUPP; 3683 } 3684 3685 if (!crule->patterns[i].pkt_offset) { 3686 u8 pkt_type; 3687 3688 pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq); 3689 if (pkt_type && mrule->pkt_type) { 3690 mwifiex_dbg(priv->adapter, ERROR, 3691 "Multiple packet types not allowed\n"); 3692 return -EOPNOTSUPP; 3693 } else if (pkt_type) { 3694 mrule->pkt_type = pkt_type; 3695 continue; 3696 } 3697 } 3698 3699 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH) 3700 param->operation = RECV_FILTER_MATCH_TYPE_EQ; 3701 else 3702 param->operation = RECV_FILTER_MATCH_TYPE_NE; 3703 3704 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ]; 3705 memcpy(param->operand_byte_stream, byte_seq, 3706 param->operand_len); 3707 param->offset = crule->patterns[i].pkt_offset; 3708 param++; 3709 3710 mrule->num_of_fields++; 3711 } 3712 3713 if (!mrule->pkt_type) { 3714 mwifiex_dbg(priv->adapter, ERROR, 3715 "Packet type can not be determined\n"); 3716 return -EOPNOTSUPP; 3717 } 3718 3719 return 0; 3720 } 3721 3722 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy, 3723 struct cfg80211_coalesce *coalesce) 3724 { 3725 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3726 int i, ret; 3727 struct mwifiex_ds_coalesce_cfg coalesce_cfg; 3728 struct mwifiex_private *priv = 3729 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3730 3731 memset(&coalesce_cfg, 0, sizeof(coalesce_cfg)); 3732 if (!coalesce) { 3733 mwifiex_dbg(adapter, WARN, 3734 "Disable coalesce and reset all previous rules\n"); 3735 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG, 3736 HostCmd_ACT_GEN_SET, 0, 3737 &coalesce_cfg, true); 3738 } 3739 3740 coalesce_cfg.num_of_rules = coalesce->n_rules; 3741 for (i = 0; i < coalesce->n_rules; i++) { 3742 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i], 3743 &coalesce_cfg.rule[i]); 3744 if (ret) { 3745 mwifiex_dbg(adapter, ERROR, 3746 "Recheck the patterns provided for rule %d\n", 3747 i + 1); 3748 return ret; 3749 } 3750 } 3751 3752 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG, 3753 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true); 3754 } 3755 3756 /* cfg80211 ops handler for tdls_mgmt. 3757 * Function prepares TDLS action frame packets and forwards them to FW 3758 */ 3759 static int 3760 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 3761 const u8 *peer, int link_id, u8 action_code, 3762 u8 dialog_token, u16 status_code, 3763 u32 peer_capability, bool initiator, 3764 const u8 *extra_ies, size_t extra_ies_len) 3765 { 3766 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3767 int ret; 3768 3769 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) 3770 return -EOPNOTSUPP; 3771 3772 /* make sure we are in station mode and connected */ 3773 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected)) 3774 return -EOPNOTSUPP; 3775 3776 switch (action_code) { 3777 case WLAN_TDLS_SETUP_REQUEST: 3778 mwifiex_dbg(priv->adapter, MSG, 3779 "Send TDLS Setup Request to %pM status_code=%d\n", 3780 peer, status_code); 3781 mwifiex_add_auto_tdls_peer(priv, peer); 3782 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3783 dialog_token, status_code, 3784 extra_ies, extra_ies_len); 3785 break; 3786 case WLAN_TDLS_SETUP_RESPONSE: 3787 mwifiex_add_auto_tdls_peer(priv, peer); 3788 mwifiex_dbg(priv->adapter, MSG, 3789 "Send TDLS Setup Response to %pM status_code=%d\n", 3790 peer, status_code); 3791 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3792 dialog_token, status_code, 3793 extra_ies, extra_ies_len); 3794 break; 3795 case WLAN_TDLS_SETUP_CONFIRM: 3796 mwifiex_dbg(priv->adapter, MSG, 3797 "Send TDLS Confirm to %pM status_code=%d\n", peer, 3798 status_code); 3799 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3800 dialog_token, status_code, 3801 extra_ies, extra_ies_len); 3802 break; 3803 case WLAN_TDLS_TEARDOWN: 3804 mwifiex_dbg(priv->adapter, MSG, 3805 "Send TDLS Tear down to %pM\n", peer); 3806 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3807 dialog_token, status_code, 3808 extra_ies, extra_ies_len); 3809 break; 3810 case WLAN_TDLS_DISCOVERY_REQUEST: 3811 mwifiex_dbg(priv->adapter, MSG, 3812 "Send TDLS Discovery Request to %pM\n", peer); 3813 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3814 dialog_token, status_code, 3815 extra_ies, extra_ies_len); 3816 break; 3817 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: 3818 mwifiex_dbg(priv->adapter, MSG, 3819 "Send TDLS Discovery Response to %pM\n", peer); 3820 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code, 3821 dialog_token, status_code, 3822 extra_ies, extra_ies_len); 3823 break; 3824 default: 3825 mwifiex_dbg(priv->adapter, ERROR, 3826 "Unknown TDLS mgmt/action frame %pM\n", peer); 3827 ret = -EINVAL; 3828 break; 3829 } 3830 3831 return ret; 3832 } 3833 3834 static int 3835 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 3836 const u8 *peer, enum nl80211_tdls_operation action) 3837 { 3838 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3839 3840 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) || 3841 !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)) 3842 return -EOPNOTSUPP; 3843 3844 /* make sure we are in station mode and connected */ 3845 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected)) 3846 return -EOPNOTSUPP; 3847 3848 mwifiex_dbg(priv->adapter, MSG, 3849 "TDLS peer=%pM, oper=%d\n", peer, action); 3850 3851 switch (action) { 3852 case NL80211_TDLS_ENABLE_LINK: 3853 action = MWIFIEX_TDLS_ENABLE_LINK; 3854 break; 3855 case NL80211_TDLS_DISABLE_LINK: 3856 action = MWIFIEX_TDLS_DISABLE_LINK; 3857 break; 3858 case NL80211_TDLS_TEARDOWN: 3859 /* shouldn't happen!*/ 3860 mwifiex_dbg(priv->adapter, ERROR, 3861 "tdls_oper: teardown from driver not supported\n"); 3862 return -EINVAL; 3863 case NL80211_TDLS_SETUP: 3864 /* shouldn't happen!*/ 3865 mwifiex_dbg(priv->adapter, ERROR, 3866 "tdls_oper: setup from driver not supported\n"); 3867 return -EINVAL; 3868 case NL80211_TDLS_DISCOVERY_REQ: 3869 /* shouldn't happen!*/ 3870 mwifiex_dbg(priv->adapter, ERROR, 3871 "tdls_oper: discovery from driver not supported\n"); 3872 return -EINVAL; 3873 default: 3874 mwifiex_dbg(priv->adapter, ERROR, 3875 "tdls_oper: operation not supported\n"); 3876 return -EOPNOTSUPP; 3877 } 3878 3879 return mwifiex_tdls_oper(priv, peer, action); 3880 } 3881 3882 static int 3883 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev, 3884 const u8 *addr, u8 oper_class, 3885 struct cfg80211_chan_def *chandef) 3886 { 3887 struct mwifiex_sta_node *sta_ptr; 3888 u16 chan; 3889 u8 second_chan_offset, band; 3890 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3891 3892 spin_lock_bh(&priv->sta_list_spinlock); 3893 sta_ptr = mwifiex_get_sta_entry(priv, addr); 3894 if (!sta_ptr) { 3895 spin_unlock_bh(&priv->sta_list_spinlock); 3896 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n", 3897 __func__, addr); 3898 return -ENOENT; 3899 } 3900 3901 if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] & 3902 WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) { 3903 spin_unlock_bh(&priv->sta_list_spinlock); 3904 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr); 3905 return -ENOENT; 3906 } 3907 3908 if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING || 3909 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) { 3910 spin_unlock_bh(&priv->sta_list_spinlock); 3911 wiphy_err(wiphy, "channel switch is running, abort request\n"); 3912 return -EALREADY; 3913 } 3914 spin_unlock_bh(&priv->sta_list_spinlock); 3915 3916 chan = chandef->chan->hw_value; 3917 second_chan_offset = mwifiex_get_sec_chan_offset(chan); 3918 band = chandef->chan->band; 3919 mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band); 3920 3921 return 0; 3922 } 3923 3924 static void 3925 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy, 3926 struct net_device *dev, 3927 const u8 *addr) 3928 { 3929 struct mwifiex_sta_node *sta_ptr; 3930 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3931 3932 spin_lock_bh(&priv->sta_list_spinlock); 3933 sta_ptr = mwifiex_get_sta_entry(priv, addr); 3934 if (!sta_ptr) { 3935 spin_unlock_bh(&priv->sta_list_spinlock); 3936 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n", 3937 __func__, addr); 3938 } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING || 3939 sta_ptr->tdls_status == TDLS_IN_BASE_CHAN || 3940 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) { 3941 spin_unlock_bh(&priv->sta_list_spinlock); 3942 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n", 3943 addr); 3944 } else { 3945 spin_unlock_bh(&priv->sta_list_spinlock); 3946 mwifiex_stop_tdls_cs(priv, addr); 3947 } 3948 } 3949 3950 static int 3951 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev, 3952 const u8 *mac, struct station_parameters *params) 3953 { 3954 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3955 3956 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) 3957 return -EOPNOTSUPP; 3958 3959 /* make sure we are in station mode and connected */ 3960 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected) 3961 return -EOPNOTSUPP; 3962 3963 return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK); 3964 } 3965 3966 static int 3967 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3968 struct cfg80211_csa_settings *params) 3969 { 3970 struct ieee_types_header *chsw_ie; 3971 struct ieee80211_channel_sw_ie *channel_sw; 3972 int chsw_msec; 3973 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3974 3975 if (priv->adapter->scan_processing) { 3976 mwifiex_dbg(priv->adapter, ERROR, 3977 "radar detection: scan in process...\n"); 3978 return -EBUSY; 3979 } 3980 3981 if (priv->wdev.cac_started) 3982 return -EBUSY; 3983 3984 if (cfg80211_chandef_identical(¶ms->chandef, 3985 &priv->dfs_chandef)) 3986 return -EINVAL; 3987 3988 chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH, 3989 params->beacon_csa.tail, 3990 params->beacon_csa.tail_len); 3991 if (!chsw_ie) { 3992 mwifiex_dbg(priv->adapter, ERROR, 3993 "Could not parse channel switch announcement IE\n"); 3994 return -EINVAL; 3995 } 3996 3997 channel_sw = (void *)(chsw_ie + 1); 3998 if (channel_sw->mode) { 3999 if (netif_carrier_ok(priv->netdev)) 4000 netif_carrier_off(priv->netdev); 4001 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter); 4002 } 4003 4004 if (mwifiex_del_mgmt_ies(priv)) 4005 mwifiex_dbg(priv->adapter, ERROR, 4006 "Failed to delete mgmt IEs!\n"); 4007 4008 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon_csa)) { 4009 mwifiex_dbg(priv->adapter, ERROR, 4010 "%s: setting mgmt ies failed\n", __func__); 4011 return -EFAULT; 4012 } 4013 4014 memcpy(&priv->dfs_chandef, ¶ms->chandef, sizeof(priv->dfs_chandef)); 4015 memcpy(&priv->beacon_after, ¶ms->beacon_after, 4016 sizeof(priv->beacon_after)); 4017 4018 chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100); 4019 queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work, 4020 msecs_to_jiffies(chsw_msec)); 4021 return 0; 4022 } 4023 4024 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy, 4025 struct wireless_dev *wdev, 4026 unsigned int link_id, 4027 struct cfg80211_chan_def *chandef) 4028 { 4029 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 4030 struct mwifiex_bssdescriptor *curr_bss; 4031 struct ieee80211_channel *chan; 4032 enum nl80211_channel_type chan_type; 4033 enum nl80211_band band; 4034 int freq; 4035 int ret = -ENODATA; 4036 4037 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP && 4038 cfg80211_chandef_valid(&priv->bss_chandef)) { 4039 *chandef = priv->bss_chandef; 4040 ret = 0; 4041 } else if (priv->media_connected) { 4042 curr_bss = &priv->curr_bss_params.bss_descriptor; 4043 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 4044 freq = ieee80211_channel_to_frequency(curr_bss->channel, band); 4045 chan = ieee80211_get_channel(wiphy, freq); 4046 4047 if (priv->ht_param_present) { 4048 chan_type = mwifiex_get_chan_type(priv); 4049 cfg80211_chandef_create(chandef, chan, chan_type); 4050 } else { 4051 cfg80211_chandef_create(chandef, chan, 4052 NL80211_CHAN_NO_HT); 4053 } 4054 ret = 0; 4055 } 4056 4057 return ret; 4058 } 4059 4060 #ifdef CONFIG_NL80211_TESTMODE 4061 4062 enum mwifiex_tm_attr { 4063 __MWIFIEX_TM_ATTR_INVALID = 0, 4064 MWIFIEX_TM_ATTR_CMD = 1, 4065 MWIFIEX_TM_ATTR_DATA = 2, 4066 4067 /* keep last */ 4068 __MWIFIEX_TM_ATTR_AFTER_LAST, 4069 MWIFIEX_TM_ATTR_MAX = __MWIFIEX_TM_ATTR_AFTER_LAST - 1, 4070 }; 4071 4072 static const struct nla_policy mwifiex_tm_policy[MWIFIEX_TM_ATTR_MAX + 1] = { 4073 [MWIFIEX_TM_ATTR_CMD] = { .type = NLA_U32 }, 4074 [MWIFIEX_TM_ATTR_DATA] = { .type = NLA_BINARY, 4075 .len = MWIFIEX_SIZE_OF_CMD_BUFFER }, 4076 }; 4077 4078 enum mwifiex_tm_command { 4079 MWIFIEX_TM_CMD_HOSTCMD = 0, 4080 }; 4081 4082 static int mwifiex_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev, 4083 void *data, int len) 4084 { 4085 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 4086 struct mwifiex_ds_misc_cmd *hostcmd; 4087 struct nlattr *tb[MWIFIEX_TM_ATTR_MAX + 1]; 4088 struct sk_buff *skb; 4089 int err; 4090 4091 if (!priv) 4092 return -EINVAL; 4093 4094 err = nla_parse_deprecated(tb, MWIFIEX_TM_ATTR_MAX, data, len, 4095 mwifiex_tm_policy, NULL); 4096 if (err) 4097 return err; 4098 4099 if (!tb[MWIFIEX_TM_ATTR_CMD]) 4100 return -EINVAL; 4101 4102 switch (nla_get_u32(tb[MWIFIEX_TM_ATTR_CMD])) { 4103 case MWIFIEX_TM_CMD_HOSTCMD: 4104 if (!tb[MWIFIEX_TM_ATTR_DATA]) 4105 return -EINVAL; 4106 4107 hostcmd = kzalloc(sizeof(*hostcmd), GFP_KERNEL); 4108 if (!hostcmd) 4109 return -ENOMEM; 4110 4111 hostcmd->len = nla_len(tb[MWIFIEX_TM_ATTR_DATA]); 4112 memcpy(hostcmd->cmd, nla_data(tb[MWIFIEX_TM_ATTR_DATA]), 4113 hostcmd->len); 4114 4115 if (mwifiex_send_cmd(priv, 0, 0, 0, hostcmd, true)) { 4116 dev_err(priv->adapter->dev, "Failed to process hostcmd\n"); 4117 kfree(hostcmd); 4118 return -EFAULT; 4119 } 4120 4121 /* process hostcmd response*/ 4122 skb = cfg80211_testmode_alloc_reply_skb(wiphy, hostcmd->len); 4123 if (!skb) { 4124 kfree(hostcmd); 4125 return -ENOMEM; 4126 } 4127 err = nla_put(skb, MWIFIEX_TM_ATTR_DATA, 4128 hostcmd->len, hostcmd->cmd); 4129 if (err) { 4130 kfree(hostcmd); 4131 kfree_skb(skb); 4132 return -EMSGSIZE; 4133 } 4134 4135 err = cfg80211_testmode_reply(skb); 4136 kfree(hostcmd); 4137 return err; 4138 default: 4139 return -EOPNOTSUPP; 4140 } 4141 } 4142 #endif 4143 4144 static int 4145 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy, 4146 struct net_device *dev, 4147 struct cfg80211_chan_def *chandef, 4148 u32 cac_time_ms) 4149 { 4150 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 4151 struct mwifiex_radar_params radar_params; 4152 4153 if (priv->adapter->scan_processing) { 4154 mwifiex_dbg(priv->adapter, ERROR, 4155 "radar detection: scan already in process...\n"); 4156 return -EBUSY; 4157 } 4158 4159 if (!mwifiex_is_11h_active(priv)) { 4160 mwifiex_dbg(priv->adapter, INFO, 4161 "Enable 11h extensions in FW\n"); 4162 if (mwifiex_11h_activate(priv, true)) { 4163 mwifiex_dbg(priv->adapter, ERROR, 4164 "Failed to activate 11h extensions!!"); 4165 return -1; 4166 } 4167 priv->state_11h.is_11h_active = true; 4168 } 4169 4170 memset(&radar_params, 0, sizeof(struct mwifiex_radar_params)); 4171 radar_params.chandef = chandef; 4172 radar_params.cac_time_ms = cac_time_ms; 4173 4174 memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef)); 4175 4176 if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST, 4177 HostCmd_ACT_GEN_SET, 0, &radar_params, true)) 4178 return -1; 4179 4180 queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work, 4181 msecs_to_jiffies(cac_time_ms)); 4182 return 0; 4183 } 4184 4185 static int 4186 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev, 4187 const u8 *mac, 4188 struct station_parameters *params) 4189 { 4190 int ret; 4191 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 4192 4193 /* we support change_station handler only for TDLS peers*/ 4194 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) 4195 return -EOPNOTSUPP; 4196 4197 /* make sure we are in station mode and connected */ 4198 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected) 4199 return -EOPNOTSUPP; 4200 4201 priv->sta_params = params; 4202 4203 ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK); 4204 priv->sta_params = NULL; 4205 4206 return ret; 4207 } 4208 4209 /* station cfg80211 operations */ 4210 static struct cfg80211_ops mwifiex_cfg80211_ops = { 4211 .add_virtual_intf = mwifiex_add_virtual_intf, 4212 .del_virtual_intf = mwifiex_del_virtual_intf, 4213 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf, 4214 .scan = mwifiex_cfg80211_scan, 4215 .connect = mwifiex_cfg80211_connect, 4216 .disconnect = mwifiex_cfg80211_disconnect, 4217 .get_station = mwifiex_cfg80211_get_station, 4218 .dump_station = mwifiex_cfg80211_dump_station, 4219 .dump_survey = mwifiex_cfg80211_dump_survey, 4220 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params, 4221 .join_ibss = mwifiex_cfg80211_join_ibss, 4222 .leave_ibss = mwifiex_cfg80211_leave_ibss, 4223 .add_key = mwifiex_cfg80211_add_key, 4224 .del_key = mwifiex_cfg80211_del_key, 4225 .set_default_mgmt_key = mwifiex_cfg80211_set_default_mgmt_key, 4226 .mgmt_tx = mwifiex_cfg80211_mgmt_tx, 4227 .update_mgmt_frame_registrations = 4228 mwifiex_cfg80211_update_mgmt_frame_registrations, 4229 .remain_on_channel = mwifiex_cfg80211_remain_on_channel, 4230 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel, 4231 .set_default_key = mwifiex_cfg80211_set_default_key, 4232 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt, 4233 .set_tx_power = mwifiex_cfg80211_set_tx_power, 4234 .get_tx_power = mwifiex_cfg80211_get_tx_power, 4235 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask, 4236 .start_ap = mwifiex_cfg80211_start_ap, 4237 .stop_ap = mwifiex_cfg80211_stop_ap, 4238 .change_beacon = mwifiex_cfg80211_change_beacon, 4239 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config, 4240 .set_antenna = mwifiex_cfg80211_set_antenna, 4241 .get_antenna = mwifiex_cfg80211_get_antenna, 4242 .del_station = mwifiex_cfg80211_del_station, 4243 .sched_scan_start = mwifiex_cfg80211_sched_scan_start, 4244 .sched_scan_stop = mwifiex_cfg80211_sched_scan_stop, 4245 #ifdef CONFIG_PM 4246 .suspend = mwifiex_cfg80211_suspend, 4247 .resume = mwifiex_cfg80211_resume, 4248 .set_wakeup = mwifiex_cfg80211_set_wakeup, 4249 .set_rekey_data = mwifiex_set_rekey_data, 4250 #endif 4251 .set_coalesce = mwifiex_cfg80211_set_coalesce, 4252 .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt, 4253 .tdls_oper = mwifiex_cfg80211_tdls_oper, 4254 .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch, 4255 .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch, 4256 .add_station = mwifiex_cfg80211_add_station, 4257 .change_station = mwifiex_cfg80211_change_station, 4258 CFG80211_TESTMODE_CMD(mwifiex_tm_cmd) 4259 .get_channel = mwifiex_cfg80211_get_channel, 4260 .start_radar_detection = mwifiex_cfg80211_start_radar_detection, 4261 .channel_switch = mwifiex_cfg80211_channel_switch, 4262 }; 4263 4264 #ifdef CONFIG_PM 4265 static const struct wiphy_wowlan_support mwifiex_wowlan_support = { 4266 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT | 4267 WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 4268 WIPHY_WOWLAN_GTK_REKEY_FAILURE, 4269 .n_patterns = MWIFIEX_MEF_MAX_FILTERS, 4270 .pattern_min_len = 1, 4271 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4272 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4273 .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS, 4274 }; 4275 4276 static const struct wiphy_wowlan_support mwifiex_wowlan_support_no_gtk = { 4277 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT | 4278 WIPHY_WOWLAN_NET_DETECT, 4279 .n_patterns = MWIFIEX_MEF_MAX_FILTERS, 4280 .pattern_min_len = 1, 4281 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4282 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4283 .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS, 4284 }; 4285 #endif 4286 4287 static bool mwifiex_is_valid_alpha2(const char *alpha2) 4288 { 4289 if (!alpha2 || strlen(alpha2) != 2) 4290 return false; 4291 4292 if (isalpha(alpha2[0]) && isalpha(alpha2[1])) 4293 return true; 4294 4295 return false; 4296 } 4297 4298 static const struct wiphy_coalesce_support mwifiex_coalesce_support = { 4299 .n_rules = MWIFIEX_COALESCE_MAX_RULES, 4300 .max_delay = MWIFIEX_MAX_COALESCING_DELAY, 4301 .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS, 4302 .pattern_min_len = 1, 4303 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4304 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4305 }; 4306 4307 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter) 4308 { 4309 u32 n_channels_bg, n_channels_a = 0; 4310 4311 n_channels_bg = mwifiex_band_2ghz.n_channels; 4312 4313 if (adapter->config_bands & BAND_A) 4314 n_channels_a = mwifiex_band_5ghz.n_channels; 4315 4316 /* allocate twice the number total channels, since the driver issues an 4317 * additional active scan request for hidden SSIDs on passive channels. 4318 */ 4319 adapter->num_in_chan_stats = 2 * (n_channels_bg + n_channels_a); 4320 adapter->chan_stats = vmalloc(array_size(sizeof(*adapter->chan_stats), 4321 adapter->num_in_chan_stats)); 4322 4323 if (!adapter->chan_stats) 4324 return -ENOMEM; 4325 4326 return 0; 4327 } 4328 4329 /* 4330 * This function registers the device with CFG802.11 subsystem. 4331 * 4332 * The function creates the wireless device/wiphy, populates it with 4333 * default parameters and handler function pointers, and finally 4334 * registers the device. 4335 */ 4336 4337 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter) 4338 { 4339 int ret; 4340 void *wdev_priv; 4341 struct wiphy *wiphy; 4342 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA]; 4343 u8 *country_code; 4344 u32 thr, retry; 4345 4346 /* create a new wiphy for use with cfg80211 */ 4347 wiphy = wiphy_new(&mwifiex_cfg80211_ops, 4348 sizeof(struct mwifiex_adapter *)); 4349 if (!wiphy) { 4350 mwifiex_dbg(adapter, ERROR, 4351 "%s: creating new wiphy\n", __func__); 4352 return -ENOMEM; 4353 } 4354 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH; 4355 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN; 4356 wiphy->mgmt_stypes = mwifiex_mgmt_stypes; 4357 wiphy->max_remain_on_channel_duration = 5000; 4358 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 4359 BIT(NL80211_IFTYPE_P2P_CLIENT) | 4360 BIT(NL80211_IFTYPE_P2P_GO) | 4361 BIT(NL80211_IFTYPE_AP); 4362 4363 if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info)) 4364 wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC); 4365 4366 wiphy->bands[NL80211_BAND_2GHZ] = devm_kmemdup(adapter->dev, 4367 &mwifiex_band_2ghz, 4368 sizeof(mwifiex_band_2ghz), 4369 GFP_KERNEL); 4370 if (!wiphy->bands[NL80211_BAND_2GHZ]) { 4371 ret = -ENOMEM; 4372 goto err; 4373 } 4374 4375 if (adapter->config_bands & BAND_A) { 4376 wiphy->bands[NL80211_BAND_5GHZ] = devm_kmemdup(adapter->dev, 4377 &mwifiex_band_5ghz, 4378 sizeof(mwifiex_band_5ghz), 4379 GFP_KERNEL); 4380 if (!wiphy->bands[NL80211_BAND_5GHZ]) { 4381 ret = -ENOMEM; 4382 goto err; 4383 } 4384 } else { 4385 wiphy->bands[NL80211_BAND_5GHZ] = NULL; 4386 } 4387 4388 if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info)) 4389 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs; 4390 else if (adapter->is_hw_11ac_capable) 4391 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht; 4392 else 4393 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta; 4394 wiphy->n_iface_combinations = 1; 4395 4396 if (adapter->max_sta_conn > adapter->max_p2p_conn) 4397 wiphy->max_ap_assoc_sta = adapter->max_sta_conn; 4398 else 4399 wiphy->max_ap_assoc_sta = adapter->max_p2p_conn; 4400 4401 /* Initialize cipher suits */ 4402 wiphy->cipher_suites = mwifiex_cipher_suites; 4403 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites); 4404 4405 if (adapter->regd) { 4406 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 4407 REGULATORY_DISABLE_BEACON_HINTS | 4408 REGULATORY_COUNTRY_IE_IGNORE; 4409 wiphy_apply_custom_regulatory(wiphy, adapter->regd); 4410 } 4411 4412 ether_addr_copy(wiphy->perm_addr, adapter->perm_addr); 4413 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 4414 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | 4415 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | 4416 WIPHY_FLAG_AP_UAPSD | 4417 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | 4418 WIPHY_FLAG_HAS_CHANNEL_SWITCH | 4419 WIPHY_FLAG_NETNS_OK | 4420 WIPHY_FLAG_PS_ON_BY_DEFAULT; 4421 4422 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info)) 4423 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS | 4424 WIPHY_FLAG_TDLS_EXTERNAL_SETUP; 4425 4426 #ifdef CONFIG_PM 4427 if (ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info)) 4428 wiphy->wowlan = &mwifiex_wowlan_support; 4429 else 4430 wiphy->wowlan = &mwifiex_wowlan_support_no_gtk; 4431 #endif 4432 4433 wiphy->coalesce = &mwifiex_coalesce_support; 4434 4435 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 4436 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 4437 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; 4438 4439 wiphy->max_sched_scan_reqs = 1; 4440 wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH; 4441 wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN; 4442 wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH; 4443 4444 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1; 4445 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1; 4446 4447 wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER | 4448 NL80211_FEATURE_LOW_PRIORITY_SCAN | 4449 NL80211_FEATURE_NEED_OBSS_SCAN; 4450 4451 if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info)) 4452 wiphy->features |= NL80211_FEATURE_HT_IBSS; 4453 4454 if (ISSUPP_RANDOM_MAC(adapter->fw_cap_info)) 4455 wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 4456 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 4457 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 4458 4459 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info)) 4460 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 4461 4462 if (adapter->fw_api_ver == MWIFIEX_FW_V15) 4463 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS; 4464 4465 /* Reserve space for mwifiex specific private data for BSS */ 4466 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv); 4467 4468 wiphy->reg_notifier = mwifiex_reg_notifier; 4469 4470 /* Set struct mwifiex_adapter pointer in wiphy_priv */ 4471 wdev_priv = wiphy_priv(wiphy); 4472 *(unsigned long *)wdev_priv = (unsigned long)adapter; 4473 4474 set_wiphy_dev(wiphy, priv->adapter->dev); 4475 4476 ret = wiphy_register(wiphy); 4477 if (ret < 0) { 4478 mwifiex_dbg(adapter, ERROR, 4479 "%s: wiphy_register failed: %d\n", __func__, ret); 4480 goto err; 4481 } 4482 4483 if (!adapter->regd) { 4484 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) { 4485 mwifiex_dbg(adapter, INFO, 4486 "driver hint alpha2: %2.2s\n", reg_alpha2); 4487 regulatory_hint(wiphy, reg_alpha2); 4488 } else { 4489 if (adapter->region_code == 0x00) { 4490 mwifiex_dbg(adapter, WARN, 4491 "Ignore world regulatory domain\n"); 4492 } else { 4493 wiphy->regulatory_flags |= 4494 REGULATORY_DISABLE_BEACON_HINTS | 4495 REGULATORY_COUNTRY_IE_IGNORE; 4496 country_code = 4497 mwifiex_11d_code_2_region( 4498 adapter->region_code); 4499 if (country_code && 4500 regulatory_hint(wiphy, country_code)) 4501 mwifiex_dbg(priv->adapter, ERROR, 4502 "regulatory_hint() failed\n"); 4503 } 4504 } 4505 } 4506 4507 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4508 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true); 4509 wiphy->frag_threshold = thr; 4510 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4511 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true); 4512 wiphy->rts_threshold = thr; 4513 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4514 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true); 4515 wiphy->retry_short = (u8) retry; 4516 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4517 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true); 4518 wiphy->retry_long = (u8) retry; 4519 4520 adapter->wiphy = wiphy; 4521 return ret; 4522 4523 err: 4524 wiphy_free(wiphy); 4525 4526 return ret; 4527 } 4528