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_beacon_data *data) 1841 { 1842 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1843 struct mwifiex_adapter *adapter = priv->adapter; 1844 1845 mwifiex_cancel_scan(adapter); 1846 1847 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) { 1848 mwifiex_dbg(priv->adapter, ERROR, 1849 "%s: bss_type mismatched\n", __func__); 1850 return -EINVAL; 1851 } 1852 1853 if (!priv->bss_started) { 1854 mwifiex_dbg(priv->adapter, ERROR, 1855 "%s: bss not started\n", __func__); 1856 return -EINVAL; 1857 } 1858 1859 if (mwifiex_set_mgmt_ies(priv, data)) { 1860 mwifiex_dbg(priv->adapter, ERROR, 1861 "%s: setting mgmt ies failed\n", __func__); 1862 return -EFAULT; 1863 } 1864 1865 return 0; 1866 } 1867 1868 /* cfg80211 operation handler for del_station. 1869 * Function deauthenticates station which value is provided in mac parameter. 1870 * If mac is NULL/broadcast, all stations in associated station list are 1871 * deauthenticated. If bss is not started or there are no stations in 1872 * associated stations list, no action is taken. 1873 */ 1874 static int 1875 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1876 struct station_del_parameters *params) 1877 { 1878 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1879 struct mwifiex_sta_node *sta_node; 1880 u8 deauth_mac[ETH_ALEN]; 1881 1882 if (!priv->bss_started && priv->wdev.cac_started) { 1883 mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__); 1884 mwifiex_abort_cac(priv); 1885 } 1886 1887 if (list_empty(&priv->sta_list) || !priv->bss_started) 1888 return 0; 1889 1890 if (!params->mac || is_broadcast_ether_addr(params->mac)) 1891 return 0; 1892 1893 mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n", 1894 __func__, params->mac); 1895 1896 eth_zero_addr(deauth_mac); 1897 1898 spin_lock_bh(&priv->sta_list_spinlock); 1899 sta_node = mwifiex_get_sta_entry(priv, params->mac); 1900 if (sta_node) 1901 ether_addr_copy(deauth_mac, params->mac); 1902 spin_unlock_bh(&priv->sta_list_spinlock); 1903 1904 if (is_valid_ether_addr(deauth_mac)) { 1905 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH, 1906 HostCmd_ACT_GEN_SET, 0, 1907 deauth_mac, true)) 1908 return -1; 1909 } 1910 1911 return 0; 1912 } 1913 1914 static int 1915 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 1916 { 1917 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 1918 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 1919 MWIFIEX_BSS_ROLE_ANY); 1920 struct mwifiex_ds_ant_cfg ant_cfg; 1921 1922 if (!tx_ant || !rx_ant) 1923 return -EOPNOTSUPP; 1924 1925 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) { 1926 /* Not a MIMO chip. User should provide specific antenna number 1927 * for Tx/Rx path or enable all antennas for diversity 1928 */ 1929 if (tx_ant != rx_ant) 1930 return -EOPNOTSUPP; 1931 1932 if ((tx_ant & (tx_ant - 1)) && 1933 (tx_ant != BIT(adapter->number_of_antenna) - 1)) 1934 return -EOPNOTSUPP; 1935 1936 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) && 1937 (priv->adapter->number_of_antenna > 1)) { 1938 tx_ant = RF_ANTENNA_AUTO; 1939 rx_ant = RF_ANTENNA_AUTO; 1940 } 1941 } else { 1942 struct ieee80211_sta_ht_cap *ht_info; 1943 int rx_mcs_supp; 1944 enum nl80211_band band; 1945 1946 if ((tx_ant == 0x1 && rx_ant == 0x1)) { 1947 adapter->user_dev_mcs_support = HT_STREAM_1X1; 1948 if (adapter->is_hw_11ac_capable) 1949 adapter->usr_dot_11ac_mcs_support = 1950 MWIFIEX_11AC_MCS_MAP_1X1; 1951 } else { 1952 adapter->user_dev_mcs_support = HT_STREAM_2X2; 1953 if (adapter->is_hw_11ac_capable) 1954 adapter->usr_dot_11ac_mcs_support = 1955 MWIFIEX_11AC_MCS_MAP_2X2; 1956 } 1957 1958 for (band = 0; band < NUM_NL80211_BANDS; band++) { 1959 if (!adapter->wiphy->bands[band]) 1960 continue; 1961 1962 ht_info = &adapter->wiphy->bands[band]->ht_cap; 1963 rx_mcs_supp = 1964 GET_RXMCSSUPP(adapter->user_dev_mcs_support); 1965 memset(&ht_info->mcs, 0, adapter->number_of_antenna); 1966 memset(&ht_info->mcs, 0xff, rx_mcs_supp); 1967 } 1968 } 1969 1970 ant_cfg.tx_ant = tx_ant; 1971 ant_cfg.rx_ant = rx_ant; 1972 1973 return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA, 1974 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true); 1975 } 1976 1977 static int 1978 mwifiex_cfg80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 1979 { 1980 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 1981 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 1982 MWIFIEX_BSS_ROLE_ANY); 1983 mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA, 1984 HostCmd_ACT_GEN_GET, 0, NULL, true); 1985 1986 *tx_ant = priv->tx_ant; 1987 *rx_ant = priv->rx_ant; 1988 1989 return 0; 1990 } 1991 1992 /* cfg80211 operation handler for stop ap. 1993 * Function stops BSS running at uAP interface. 1994 */ 1995 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1996 unsigned int link_id) 1997 { 1998 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1999 2000 mwifiex_abort_cac(priv); 2001 2002 if (mwifiex_del_mgmt_ies(priv)) 2003 mwifiex_dbg(priv->adapter, ERROR, 2004 "Failed to delete mgmt IEs!\n"); 2005 2006 priv->ap_11n_enabled = 0; 2007 memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg)); 2008 2009 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP, 2010 HostCmd_ACT_GEN_SET, 0, NULL, true)) { 2011 mwifiex_dbg(priv->adapter, ERROR, 2012 "Failed to stop the BSS\n"); 2013 return -1; 2014 } 2015 2016 if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET, 2017 HostCmd_ACT_GEN_SET, 0, NULL, true)) { 2018 mwifiex_dbg(priv->adapter, ERROR, 2019 "Failed to reset BSS\n"); 2020 return -1; 2021 } 2022 2023 if (netif_carrier_ok(priv->netdev)) 2024 netif_carrier_off(priv->netdev); 2025 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter); 2026 2027 return 0; 2028 } 2029 2030 /* cfg80211 operation handler for start_ap. 2031 * Function sets beacon period, DTIM period, SSID and security into 2032 * AP config structure. 2033 * AP is configured with these settings and BSS is started. 2034 */ 2035 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy, 2036 struct net_device *dev, 2037 struct cfg80211_ap_settings *params) 2038 { 2039 struct mwifiex_uap_bss_param *bss_cfg; 2040 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2041 2042 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) 2043 return -1; 2044 2045 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL); 2046 if (!bss_cfg) 2047 return -ENOMEM; 2048 2049 mwifiex_set_sys_config_invalid_data(bss_cfg); 2050 2051 memcpy(bss_cfg->mac_addr, priv->curr_addr, ETH_ALEN); 2052 2053 if (params->beacon_interval) 2054 bss_cfg->beacon_period = params->beacon_interval; 2055 if (params->dtim_period) 2056 bss_cfg->dtim_period = params->dtim_period; 2057 2058 if (params->ssid && params->ssid_len) { 2059 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len); 2060 bss_cfg->ssid.ssid_len = params->ssid_len; 2061 } 2062 if (params->inactivity_timeout > 0) { 2063 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */ 2064 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout; 2065 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout; 2066 } 2067 2068 switch (params->hidden_ssid) { 2069 case NL80211_HIDDEN_SSID_NOT_IN_USE: 2070 bss_cfg->bcast_ssid_ctl = 1; 2071 break; 2072 case NL80211_HIDDEN_SSID_ZERO_LEN: 2073 bss_cfg->bcast_ssid_ctl = 0; 2074 break; 2075 case NL80211_HIDDEN_SSID_ZERO_CONTENTS: 2076 bss_cfg->bcast_ssid_ctl = 2; 2077 break; 2078 default: 2079 kfree(bss_cfg); 2080 return -EINVAL; 2081 } 2082 2083 mwifiex_uap_set_channel(priv, bss_cfg, params->chandef); 2084 mwifiex_set_uap_rates(bss_cfg, params); 2085 2086 if (mwifiex_set_secure_params(priv, bss_cfg, params)) { 2087 mwifiex_dbg(priv->adapter, ERROR, 2088 "Failed to parse security parameters!\n"); 2089 goto out; 2090 } 2091 2092 mwifiex_set_ht_params(priv, bss_cfg, params); 2093 2094 if (priv->adapter->is_hw_11ac_capable) { 2095 mwifiex_set_vht_params(priv, bss_cfg, params); 2096 mwifiex_set_vht_width(priv, params->chandef.width, 2097 priv->ap_11ac_enabled); 2098 } 2099 2100 if (priv->ap_11ac_enabled) 2101 mwifiex_set_11ac_ba_params(priv); 2102 else 2103 mwifiex_set_ba_params(priv); 2104 2105 mwifiex_set_wmm_params(priv, bss_cfg, params); 2106 2107 if (mwifiex_is_11h_active(priv)) 2108 mwifiex_set_tpc_params(priv, bss_cfg, params); 2109 2110 if (mwifiex_is_11h_active(priv) && 2111 !cfg80211_chandef_dfs_required(wiphy, ¶ms->chandef, 2112 priv->bss_mode)) { 2113 mwifiex_dbg(priv->adapter, INFO, 2114 "Disable 11h extensions in FW\n"); 2115 if (mwifiex_11h_activate(priv, false)) { 2116 mwifiex_dbg(priv->adapter, ERROR, 2117 "Failed to disable 11h extensions!!"); 2118 goto out; 2119 } 2120 priv->state_11h.is_11h_active = false; 2121 } 2122 2123 mwifiex_config_uap_11d(priv, ¶ms->beacon); 2124 2125 if (mwifiex_config_start_uap(priv, bss_cfg)) { 2126 mwifiex_dbg(priv->adapter, ERROR, 2127 "Failed to start AP\n"); 2128 goto out; 2129 } 2130 2131 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon)) 2132 goto out; 2133 2134 if (!netif_carrier_ok(priv->netdev)) 2135 netif_carrier_on(priv->netdev); 2136 mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter); 2137 2138 memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg)); 2139 kfree(bss_cfg); 2140 return 0; 2141 2142 out: 2143 kfree(bss_cfg); 2144 return -1; 2145 } 2146 2147 /* 2148 * CFG802.11 operation handler for disconnection request. 2149 * 2150 * This function does not work when there is already a disconnection 2151 * procedure going on. 2152 */ 2153 static int 2154 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev, 2155 u16 reason_code) 2156 { 2157 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2158 2159 if (!mwifiex_stop_bg_scan(priv)) 2160 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0); 2161 2162 if (mwifiex_deauthenticate(priv, NULL)) 2163 return -EFAULT; 2164 2165 eth_zero_addr(priv->cfg_bssid); 2166 priv->hs2_enabled = false; 2167 2168 return 0; 2169 } 2170 2171 /* 2172 * This function informs the CFG802.11 subsystem of a new IBSS. 2173 * 2174 * The following information are sent to the CFG802.11 subsystem 2175 * to register the new IBSS. If we do not register the new IBSS, 2176 * a kernel panic will result. 2177 * - SSID 2178 * - SSID length 2179 * - BSSID 2180 * - Channel 2181 */ 2182 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv) 2183 { 2184 struct ieee80211_channel *chan; 2185 struct mwifiex_bss_info bss_info; 2186 struct cfg80211_bss *bss; 2187 int ie_len; 2188 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)]; 2189 enum nl80211_band band; 2190 2191 if (mwifiex_get_bss_info(priv, &bss_info)) 2192 return -1; 2193 2194 ie_buf[0] = WLAN_EID_SSID; 2195 ie_buf[1] = bss_info.ssid.ssid_len; 2196 2197 memcpy(&ie_buf[sizeof(struct ieee_types_header)], 2198 &bss_info.ssid.ssid, bss_info.ssid.ssid_len); 2199 ie_len = ie_buf[1] + sizeof(struct ieee_types_header); 2200 2201 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 2202 chan = ieee80211_get_channel(priv->wdev.wiphy, 2203 ieee80211_channel_to_frequency(bss_info.bss_chan, 2204 band)); 2205 2206 bss = cfg80211_inform_bss(priv->wdev.wiphy, chan, 2207 CFG80211_BSS_FTYPE_UNKNOWN, 2208 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS, 2209 0, ie_buf, ie_len, 0, GFP_KERNEL); 2210 if (bss) { 2211 cfg80211_put_bss(priv->wdev.wiphy, bss); 2212 ether_addr_copy(priv->cfg_bssid, bss_info.bssid); 2213 } 2214 2215 return 0; 2216 } 2217 2218 /* 2219 * This function connects with a BSS. 2220 * 2221 * This function handles both Infra and Ad-Hoc modes. It also performs 2222 * validity checking on the provided parameters, disconnects from the 2223 * current BSS (if any), sets up the association/scan parameters, 2224 * including security settings, and performs specific SSID scan before 2225 * trying to connect. 2226 * 2227 * For Infra mode, the function returns failure if the specified SSID 2228 * is not found in scan table. However, for Ad-Hoc mode, it can create 2229 * the IBSS if it does not exist. On successful completion in either case, 2230 * the function notifies the CFG802.11 subsystem of the new BSS connection. 2231 */ 2232 static int 2233 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, 2234 const u8 *ssid, const u8 *bssid, int mode, 2235 struct ieee80211_channel *channel, 2236 struct cfg80211_connect_params *sme, bool privacy, 2237 struct cfg80211_bss **sel_bss) 2238 { 2239 struct cfg80211_ssid req_ssid; 2240 int ret, auth_type = 0; 2241 struct cfg80211_bss *bss = NULL; 2242 u8 is_scanning_required = 0; 2243 2244 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid)); 2245 2246 req_ssid.ssid_len = ssid_len; 2247 if (ssid_len > IEEE80211_MAX_SSID_LEN) { 2248 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n"); 2249 return -EINVAL; 2250 } 2251 2252 memcpy(req_ssid.ssid, ssid, ssid_len); 2253 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) { 2254 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n"); 2255 return -EINVAL; 2256 } 2257 2258 /* As this is new association, clear locally stored 2259 * keys and security related flags */ 2260 priv->sec_info.wpa_enabled = false; 2261 priv->sec_info.wpa2_enabled = false; 2262 priv->wep_key_curr_index = 0; 2263 priv->sec_info.encryption_mode = 0; 2264 priv->sec_info.is_authtype_auto = 0; 2265 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1); 2266 2267 if (mode == NL80211_IFTYPE_ADHOC) { 2268 u16 enable = true; 2269 2270 /* set ibss coalescing_status */ 2271 ret = mwifiex_send_cmd( 2272 priv, 2273 HostCmd_CMD_802_11_IBSS_COALESCING_STATUS, 2274 HostCmd_ACT_GEN_SET, 0, &enable, true); 2275 if (ret) 2276 return ret; 2277 2278 /* "privacy" is set only for ad-hoc mode */ 2279 if (privacy) { 2280 /* 2281 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that 2282 * the firmware can find a matching network from the 2283 * scan. The cfg80211 does not give us the encryption 2284 * mode at this stage so just setting it to WEP here. 2285 */ 2286 priv->sec_info.encryption_mode = 2287 WLAN_CIPHER_SUITE_WEP104; 2288 priv->sec_info.authentication_mode = 2289 NL80211_AUTHTYPE_OPEN_SYSTEM; 2290 } 2291 2292 goto done; 2293 } 2294 2295 /* Now handle infra mode. "sme" is valid for infra mode only */ 2296 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { 2297 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; 2298 priv->sec_info.is_authtype_auto = 1; 2299 } else { 2300 auth_type = sme->auth_type; 2301 } 2302 2303 if (sme->crypto.n_ciphers_pairwise) { 2304 priv->sec_info.encryption_mode = 2305 sme->crypto.ciphers_pairwise[0]; 2306 priv->sec_info.authentication_mode = auth_type; 2307 } 2308 2309 if (sme->crypto.cipher_group) { 2310 priv->sec_info.encryption_mode = sme->crypto.cipher_group; 2311 priv->sec_info.authentication_mode = auth_type; 2312 } 2313 if (sme->ie) 2314 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len); 2315 2316 if (sme->key) { 2317 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) { 2318 mwifiex_dbg(priv->adapter, INFO, 2319 "info: setting wep encryption\t" 2320 "with key len %d\n", sme->key_len); 2321 priv->wep_key_curr_index = sme->key_idx; 2322 ret = mwifiex_set_encode(priv, NULL, sme->key, 2323 sme->key_len, sme->key_idx, 2324 NULL, 0); 2325 } 2326 } 2327 done: 2328 /* 2329 * Scan entries are valid for some time (15 sec). So we can save one 2330 * active scan time if we just try cfg80211_get_bss first. If it fails 2331 * then request scan and cfg80211_get_bss() again for final output. 2332 */ 2333 while (1) { 2334 if (is_scanning_required) { 2335 /* Do specific SSID scanning */ 2336 if (mwifiex_request_scan(priv, &req_ssid)) { 2337 mwifiex_dbg(priv->adapter, ERROR, "scan error\n"); 2338 return -EFAULT; 2339 } 2340 } 2341 2342 /* Find the BSS we want using available scan results */ 2343 if (mode == NL80211_IFTYPE_ADHOC) 2344 bss = cfg80211_get_bss(priv->wdev.wiphy, channel, 2345 bssid, ssid, ssid_len, 2346 IEEE80211_BSS_TYPE_IBSS, 2347 IEEE80211_PRIVACY_ANY); 2348 else 2349 bss = cfg80211_get_bss(priv->wdev.wiphy, channel, 2350 bssid, ssid, ssid_len, 2351 IEEE80211_BSS_TYPE_ESS, 2352 IEEE80211_PRIVACY_ANY); 2353 2354 if (!bss) { 2355 if (is_scanning_required) { 2356 mwifiex_dbg(priv->adapter, MSG, 2357 "assoc: requested bss not found in scan results\n"); 2358 break; 2359 } 2360 is_scanning_required = 1; 2361 } else { 2362 mwifiex_dbg(priv->adapter, MSG, 2363 "info: trying to associate to bssid %pM\n", 2364 bss->bssid); 2365 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN); 2366 break; 2367 } 2368 } 2369 2370 if (bss) 2371 cfg80211_ref_bss(priv->adapter->wiphy, bss); 2372 2373 ret = mwifiex_bss_start(priv, bss, &req_ssid); 2374 if (ret) 2375 goto cleanup; 2376 2377 if (mode == NL80211_IFTYPE_ADHOC) { 2378 /* Inform the BSS information to kernel, otherwise 2379 * kernel will give a panic after successful assoc */ 2380 if (mwifiex_cfg80211_inform_ibss_bss(priv)) { 2381 ret = -EFAULT; 2382 goto cleanup; 2383 } 2384 } 2385 2386 /* Pass the selected BSS entry to caller. */ 2387 if (sel_bss) { 2388 *sel_bss = bss; 2389 bss = NULL; 2390 } 2391 2392 cleanup: 2393 if (bss) 2394 cfg80211_put_bss(priv->adapter->wiphy, bss); 2395 return ret; 2396 } 2397 2398 /* 2399 * CFG802.11 operation handler for association request. 2400 * 2401 * This function does not work when the current mode is set to Ad-Hoc, or 2402 * when there is already an association procedure going on. The given BSS 2403 * information is used to associate. 2404 */ 2405 static int 2406 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, 2407 struct cfg80211_connect_params *sme) 2408 { 2409 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2410 struct mwifiex_adapter *adapter = priv->adapter; 2411 struct cfg80211_bss *bss = NULL; 2412 int ret; 2413 2414 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) { 2415 mwifiex_dbg(adapter, ERROR, 2416 "%s: reject infra assoc request in non-STA role\n", 2417 dev->name); 2418 return -EINVAL; 2419 } 2420 2421 if (priv->wdev.connected) { 2422 mwifiex_dbg(adapter, ERROR, 2423 "%s: already connected\n", dev->name); 2424 return -EALREADY; 2425 } 2426 2427 if (priv->scan_block) 2428 priv->scan_block = false; 2429 2430 if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags) || 2431 test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags)) { 2432 mwifiex_dbg(adapter, ERROR, 2433 "%s: Ignore connection.\t" 2434 "Card removed or FW in bad state\n", 2435 dev->name); 2436 return -EFAULT; 2437 } 2438 2439 mwifiex_dbg(adapter, INFO, 2440 "info: Trying to associate to bssid %pM\n", sme->bssid); 2441 2442 if (!mwifiex_stop_bg_scan(priv)) 2443 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0); 2444 2445 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid, 2446 priv->bss_mode, sme->channel, sme, 0, 2447 &bss); 2448 if (!ret) { 2449 cfg80211_connect_bss(priv->netdev, priv->cfg_bssid, bss, NULL, 2450 0, NULL, 0, WLAN_STATUS_SUCCESS, 2451 GFP_KERNEL, NL80211_TIMEOUT_UNSPECIFIED); 2452 mwifiex_dbg(priv->adapter, MSG, 2453 "info: associated to bssid %pM successfully\n", 2454 priv->cfg_bssid); 2455 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) && 2456 priv->adapter->auto_tdls && 2457 priv->bss_type == MWIFIEX_BSS_TYPE_STA) 2458 mwifiex_setup_auto_tdls_timer(priv); 2459 } else { 2460 mwifiex_dbg(priv->adapter, ERROR, 2461 "info: association to bssid %pM failed\n", 2462 priv->cfg_bssid); 2463 eth_zero_addr(priv->cfg_bssid); 2464 2465 if (ret > 0) 2466 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, 2467 NULL, 0, NULL, 0, ret, 2468 GFP_KERNEL); 2469 else 2470 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, 2471 NULL, 0, NULL, 0, 2472 WLAN_STATUS_UNSPECIFIED_FAILURE, 2473 GFP_KERNEL); 2474 } 2475 2476 return 0; 2477 } 2478 2479 /* 2480 * This function sets following parameters for ibss network. 2481 * - channel 2482 * - start band 2483 * - 11n flag 2484 * - secondary channel offset 2485 */ 2486 static int mwifiex_set_ibss_params(struct mwifiex_private *priv, 2487 struct cfg80211_ibss_params *params) 2488 { 2489 struct mwifiex_adapter *adapter = priv->adapter; 2490 int index = 0, i; 2491 u8 config_bands = 0; 2492 2493 if (params->chandef.chan->band == NL80211_BAND_2GHZ) { 2494 if (!params->basic_rates) { 2495 config_bands = BAND_B | BAND_G; 2496 } else { 2497 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) { 2498 /* 2499 * Rates below 6 Mbps in the table are CCK 2500 * rates; 802.11b and from 6 they are OFDM; 2501 * 802.11G 2502 */ 2503 if (mwifiex_rates[i].bitrate == 60) { 2504 index = 1 << i; 2505 break; 2506 } 2507 } 2508 2509 if (params->basic_rates < index) { 2510 config_bands = BAND_B; 2511 } else { 2512 config_bands = BAND_G; 2513 if (params->basic_rates % index) 2514 config_bands |= BAND_B; 2515 } 2516 } 2517 2518 if (cfg80211_get_chandef_type(¶ms->chandef) != 2519 NL80211_CHAN_NO_HT) 2520 config_bands |= BAND_G | BAND_GN; 2521 } else { 2522 if (cfg80211_get_chandef_type(¶ms->chandef) == 2523 NL80211_CHAN_NO_HT) 2524 config_bands = BAND_A; 2525 else 2526 config_bands = BAND_AN | BAND_A; 2527 } 2528 2529 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) { 2530 adapter->config_bands = config_bands; 2531 adapter->adhoc_start_band = config_bands; 2532 2533 if ((config_bands & BAND_GN) || (config_bands & BAND_AN)) 2534 adapter->adhoc_11n_enabled = true; 2535 else 2536 adapter->adhoc_11n_enabled = false; 2537 } 2538 2539 adapter->sec_chan_offset = 2540 mwifiex_chan_type_to_sec_chan_offset( 2541 cfg80211_get_chandef_type(¶ms->chandef)); 2542 priv->adhoc_channel = ieee80211_frequency_to_channel( 2543 params->chandef.chan->center_freq); 2544 2545 mwifiex_dbg(adapter, INFO, 2546 "info: set ibss band %d, chan %d, chan offset %d\n", 2547 config_bands, priv->adhoc_channel, 2548 adapter->sec_chan_offset); 2549 2550 return 0; 2551 } 2552 2553 /* 2554 * CFG802.11 operation handler to join an IBSS. 2555 * 2556 * This function does not work in any mode other than Ad-Hoc, or if 2557 * a join operation is already in progress. 2558 */ 2559 static int 2560 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2561 struct cfg80211_ibss_params *params) 2562 { 2563 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2564 int ret = 0; 2565 2566 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) { 2567 mwifiex_dbg(priv->adapter, ERROR, 2568 "request to join ibss received\t" 2569 "when station is not in ibss mode\n"); 2570 goto done; 2571 } 2572 2573 mwifiex_dbg(priv->adapter, MSG, "info: trying to join to bssid %pM\n", 2574 params->bssid); 2575 2576 mwifiex_set_ibss_params(priv, params); 2577 2578 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid, 2579 params->bssid, priv->bss_mode, 2580 params->chandef.chan, NULL, 2581 params->privacy, NULL); 2582 done: 2583 if (!ret) { 2584 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, 2585 params->chandef.chan, GFP_KERNEL); 2586 mwifiex_dbg(priv->adapter, MSG, 2587 "info: joined/created adhoc network with bssid\t" 2588 "%pM successfully\n", priv->cfg_bssid); 2589 } else { 2590 mwifiex_dbg(priv->adapter, ERROR, 2591 "info: failed creating/joining adhoc network\n"); 2592 } 2593 2594 return ret; 2595 } 2596 2597 /* 2598 * CFG802.11 operation handler to leave an IBSS. 2599 * 2600 * This function does not work if a leave operation is 2601 * already in progress. 2602 */ 2603 static int 2604 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2605 { 2606 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2607 2608 mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n", 2609 priv->cfg_bssid); 2610 if (mwifiex_deauthenticate(priv, NULL)) 2611 return -EFAULT; 2612 2613 eth_zero_addr(priv->cfg_bssid); 2614 2615 return 0; 2616 } 2617 2618 /* 2619 * CFG802.11 operation handler for scan request. 2620 * 2621 * This function issues a scan request to the firmware based upon 2622 * the user specified scan configuration. On successful completion, 2623 * it also informs the results. 2624 */ 2625 static int 2626 mwifiex_cfg80211_scan(struct wiphy *wiphy, 2627 struct cfg80211_scan_request *request) 2628 { 2629 struct net_device *dev = request->wdev->netdev; 2630 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2631 int i, offset, ret; 2632 struct ieee80211_channel *chan; 2633 struct ieee_types_header *ie; 2634 struct mwifiex_user_scan_cfg *user_scan_cfg; 2635 u8 mac_addr[ETH_ALEN]; 2636 2637 mwifiex_dbg(priv->adapter, CMD, 2638 "info: received scan request on %s\n", dev->name); 2639 2640 /* Block scan request if scan operation or scan cleanup when interface 2641 * is disabled is in process 2642 */ 2643 if (priv->scan_request || priv->scan_aborting) { 2644 mwifiex_dbg(priv->adapter, WARN, 2645 "cmd: Scan already in process..\n"); 2646 return -EBUSY; 2647 } 2648 2649 if (!priv->wdev.connected && priv->scan_block) 2650 priv->scan_block = false; 2651 2652 if (!mwifiex_stop_bg_scan(priv)) 2653 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0); 2654 2655 user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL); 2656 if (!user_scan_cfg) 2657 return -ENOMEM; 2658 2659 priv->scan_request = request; 2660 2661 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) { 2662 get_random_mask_addr(mac_addr, request->mac_addr, 2663 request->mac_addr_mask); 2664 ether_addr_copy(request->mac_addr, mac_addr); 2665 ether_addr_copy(user_scan_cfg->random_mac, mac_addr); 2666 } 2667 2668 user_scan_cfg->num_ssids = request->n_ssids; 2669 user_scan_cfg->ssid_list = request->ssids; 2670 2671 if (request->ie && request->ie_len) { 2672 offset = 0; 2673 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2674 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR) 2675 continue; 2676 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN; 2677 ie = (struct ieee_types_header *)(request->ie + offset); 2678 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len); 2679 offset += sizeof(*ie) + ie->len; 2680 2681 if (offset >= request->ie_len) 2682 break; 2683 } 2684 } 2685 2686 for (i = 0; i < min_t(u32, request->n_channels, 2687 MWIFIEX_USER_SCAN_CHAN_MAX); i++) { 2688 chan = request->channels[i]; 2689 user_scan_cfg->chan_list[i].chan_number = chan->hw_value; 2690 user_scan_cfg->chan_list[i].radio_type = chan->band; 2691 2692 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids) 2693 user_scan_cfg->chan_list[i].scan_type = 2694 MWIFIEX_SCAN_TYPE_PASSIVE; 2695 else 2696 user_scan_cfg->chan_list[i].scan_type = 2697 MWIFIEX_SCAN_TYPE_ACTIVE; 2698 2699 user_scan_cfg->chan_list[i].scan_time = 0; 2700 } 2701 2702 if (priv->adapter->scan_chan_gap_enabled && 2703 mwifiex_is_any_intf_active(priv)) 2704 user_scan_cfg->scan_chan_gap = 2705 priv->adapter->scan_chan_gap_time; 2706 2707 ret = mwifiex_scan_networks(priv, user_scan_cfg); 2708 kfree(user_scan_cfg); 2709 if (ret) { 2710 mwifiex_dbg(priv->adapter, ERROR, 2711 "scan failed: %d\n", ret); 2712 priv->scan_aborting = false; 2713 priv->scan_request = NULL; 2714 return ret; 2715 } 2716 2717 if (request->ie && request->ie_len) { 2718 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2719 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) { 2720 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR; 2721 memset(&priv->vs_ie[i].ie, 0, 2722 MWIFIEX_MAX_VSIE_LEN); 2723 } 2724 } 2725 } 2726 return 0; 2727 } 2728 2729 /* CFG802.11 operation handler for sched_scan_start. 2730 * 2731 * This function issues a bgscan config request to the firmware based upon 2732 * the user specified sched_scan configuration. On successful completion, 2733 * firmware will generate BGSCAN_REPORT event, driver should issue bgscan 2734 * query command to get sched_scan results from firmware. 2735 */ 2736 static int 2737 mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy, 2738 struct net_device *dev, 2739 struct cfg80211_sched_scan_request *request) 2740 { 2741 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2742 int i, offset; 2743 struct ieee80211_channel *chan; 2744 struct mwifiex_bg_scan_cfg *bgscan_cfg; 2745 struct ieee_types_header *ie; 2746 2747 if (!request || (!request->n_ssids && !request->n_match_sets)) { 2748 wiphy_err(wiphy, "%s : Invalid Sched_scan parameters", 2749 __func__); 2750 return -EINVAL; 2751 } 2752 2753 wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ", 2754 request->n_ssids, request->n_match_sets); 2755 wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n", 2756 request->n_channels, request->scan_plans->interval, 2757 (int)request->ie_len); 2758 2759 bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL); 2760 if (!bgscan_cfg) 2761 return -ENOMEM; 2762 2763 if (priv->scan_request || priv->scan_aborting) 2764 bgscan_cfg->start_later = true; 2765 2766 bgscan_cfg->num_ssids = request->n_match_sets; 2767 bgscan_cfg->ssid_list = request->match_sets; 2768 2769 if (request->ie && request->ie_len) { 2770 offset = 0; 2771 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2772 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR) 2773 continue; 2774 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN; 2775 ie = (struct ieee_types_header *)(request->ie + offset); 2776 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len); 2777 offset += sizeof(*ie) + ie->len; 2778 2779 if (offset >= request->ie_len) 2780 break; 2781 } 2782 } 2783 2784 for (i = 0; i < min_t(u32, request->n_channels, 2785 MWIFIEX_BG_SCAN_CHAN_MAX); i++) { 2786 chan = request->channels[i]; 2787 bgscan_cfg->chan_list[i].chan_number = chan->hw_value; 2788 bgscan_cfg->chan_list[i].radio_type = chan->band; 2789 2790 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids) 2791 bgscan_cfg->chan_list[i].scan_type = 2792 MWIFIEX_SCAN_TYPE_PASSIVE; 2793 else 2794 bgscan_cfg->chan_list[i].scan_type = 2795 MWIFIEX_SCAN_TYPE_ACTIVE; 2796 2797 bgscan_cfg->chan_list[i].scan_time = 0; 2798 } 2799 2800 bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels, 2801 MWIFIEX_BG_SCAN_CHAN_MAX); 2802 2803 /* Use at least 15 second for per scan cycle */ 2804 bgscan_cfg->scan_interval = (request->scan_plans->interval > 2805 MWIFIEX_BGSCAN_INTERVAL) ? 2806 request->scan_plans->interval : 2807 MWIFIEX_BGSCAN_INTERVAL; 2808 2809 bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT; 2810 bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH | 2811 MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE; 2812 bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA; 2813 bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET; 2814 bgscan_cfg->enable = true; 2815 if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) { 2816 bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH; 2817 bgscan_cfg->rssi_threshold = request->min_rssi_thold; 2818 } 2819 2820 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG, 2821 HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) { 2822 kfree(bgscan_cfg); 2823 return -EFAULT; 2824 } 2825 2826 priv->sched_scanning = true; 2827 2828 kfree(bgscan_cfg); 2829 return 0; 2830 } 2831 2832 /* CFG802.11 operation handler for sched_scan_stop. 2833 * 2834 * This function issues a bgscan config command to disable 2835 * previous bgscan configuration in the firmware 2836 */ 2837 static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy, 2838 struct net_device *dev, u64 reqid) 2839 { 2840 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2841 2842 wiphy_info(wiphy, "sched scan stop!"); 2843 mwifiex_stop_bg_scan(priv); 2844 2845 return 0; 2846 } 2847 2848 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info, 2849 struct mwifiex_private *priv) 2850 { 2851 struct mwifiex_adapter *adapter = priv->adapter; 2852 2853 vht_info->vht_supported = true; 2854 2855 vht_info->cap = adapter->hw_dot_11ac_dev_cap; 2856 /* Update MCS support for VHT */ 2857 vht_info->vht_mcs.rx_mcs_map = cpu_to_le16( 2858 adapter->hw_dot_11ac_mcs_support & 0xFFFF); 2859 vht_info->vht_mcs.rx_highest = 0; 2860 vht_info->vht_mcs.tx_mcs_map = cpu_to_le16( 2861 adapter->hw_dot_11ac_mcs_support >> 16); 2862 vht_info->vht_mcs.tx_highest = 0; 2863 } 2864 2865 /* 2866 * This function sets up the CFG802.11 specific HT capability fields 2867 * with default values. 2868 * 2869 * The following default values are set - 2870 * - HT Supported = True 2871 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K 2872 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE 2873 * - HT Capabilities supported by firmware 2874 * - MCS information, Rx mask = 0xff 2875 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01) 2876 */ 2877 static void 2878 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info, 2879 struct mwifiex_private *priv) 2880 { 2881 int rx_mcs_supp; 2882 struct ieee80211_mcs_info mcs_set; 2883 u8 *mcs = (u8 *)&mcs_set; 2884 struct mwifiex_adapter *adapter = priv->adapter; 2885 2886 ht_info->ht_supported = true; 2887 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; 2888 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; 2889 2890 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); 2891 2892 /* Fill HT capability information */ 2893 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) 2894 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 2895 else 2896 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 2897 2898 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap)) 2899 ht_info->cap |= IEEE80211_HT_CAP_SGI_20; 2900 else 2901 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20; 2902 2903 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap)) 2904 ht_info->cap |= IEEE80211_HT_CAP_SGI_40; 2905 else 2906 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40; 2907 2908 if (adapter->user_dev_mcs_support == HT_STREAM_2X2) 2909 ht_info->cap |= 2 << IEEE80211_HT_CAP_RX_STBC_SHIFT; 2910 else 2911 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT; 2912 2913 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap)) 2914 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC; 2915 else 2916 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC; 2917 2918 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap)) 2919 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD; 2920 else 2921 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD; 2922 2923 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap)) 2924 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT; 2925 else 2926 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT; 2927 2928 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap)) 2929 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING; 2930 else 2931 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING; 2932 2933 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU; 2934 ht_info->cap |= IEEE80211_HT_CAP_SM_PS; 2935 2936 rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support); 2937 /* Set MCS for 1x1/2x2 */ 2938 memset(mcs, 0xff, rx_mcs_supp); 2939 /* Clear all the other values */ 2940 memset(&mcs[rx_mcs_supp], 0, 2941 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp); 2942 if (priv->bss_mode == NL80211_IFTYPE_STATION || 2943 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) 2944 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */ 2945 SETHT_MCS32(mcs_set.rx_mask); 2946 2947 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info)); 2948 2949 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; 2950 } 2951 2952 /* 2953 * create a new virtual interface with the given name and name assign type 2954 */ 2955 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy, 2956 const char *name, 2957 unsigned char name_assign_type, 2958 enum nl80211_iftype type, 2959 struct vif_params *params) 2960 { 2961 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 2962 struct mwifiex_private *priv; 2963 struct net_device *dev; 2964 void *mdev_priv; 2965 int ret; 2966 2967 if (!adapter) 2968 return ERR_PTR(-EFAULT); 2969 2970 switch (type) { 2971 case NL80211_IFTYPE_UNSPECIFIED: 2972 case NL80211_IFTYPE_STATION: 2973 case NL80211_IFTYPE_ADHOC: 2974 if (adapter->curr_iface_comb.sta_intf == 2975 adapter->iface_limit.sta_intf) { 2976 mwifiex_dbg(adapter, ERROR, 2977 "cannot create multiple sta/adhoc ifaces\n"); 2978 return ERR_PTR(-EINVAL); 2979 } 2980 2981 priv = mwifiex_get_unused_priv_by_bss_type( 2982 adapter, MWIFIEX_BSS_TYPE_STA); 2983 if (!priv) { 2984 mwifiex_dbg(adapter, ERROR, 2985 "could not get free private struct\n"); 2986 return ERR_PTR(-EFAULT); 2987 } 2988 2989 priv->wdev.wiphy = wiphy; 2990 priv->wdev.iftype = NL80211_IFTYPE_STATION; 2991 2992 if (type == NL80211_IFTYPE_UNSPECIFIED) 2993 priv->bss_mode = NL80211_IFTYPE_STATION; 2994 else 2995 priv->bss_mode = type; 2996 2997 priv->bss_type = MWIFIEX_BSS_TYPE_STA; 2998 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 2999 priv->bss_priority = 0; 3000 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 3001 3002 break; 3003 case NL80211_IFTYPE_AP: 3004 if (adapter->curr_iface_comb.uap_intf == 3005 adapter->iface_limit.uap_intf) { 3006 mwifiex_dbg(adapter, ERROR, 3007 "cannot create multiple AP ifaces\n"); 3008 return ERR_PTR(-EINVAL); 3009 } 3010 3011 priv = mwifiex_get_unused_priv_by_bss_type( 3012 adapter, MWIFIEX_BSS_TYPE_UAP); 3013 if (!priv) { 3014 mwifiex_dbg(adapter, ERROR, 3015 "could not get free private struct\n"); 3016 return ERR_PTR(-EFAULT); 3017 } 3018 3019 priv->wdev.wiphy = wiphy; 3020 priv->wdev.iftype = NL80211_IFTYPE_AP; 3021 3022 priv->bss_type = MWIFIEX_BSS_TYPE_UAP; 3023 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 3024 priv->bss_priority = 0; 3025 priv->bss_role = MWIFIEX_BSS_ROLE_UAP; 3026 priv->bss_started = 0; 3027 priv->bss_mode = type; 3028 3029 break; 3030 case NL80211_IFTYPE_P2P_CLIENT: 3031 if (adapter->curr_iface_comb.p2p_intf == 3032 adapter->iface_limit.p2p_intf) { 3033 mwifiex_dbg(adapter, ERROR, 3034 "cannot create multiple P2P ifaces\n"); 3035 return ERR_PTR(-EINVAL); 3036 } 3037 3038 priv = mwifiex_get_unused_priv_by_bss_type( 3039 adapter, MWIFIEX_BSS_TYPE_P2P); 3040 if (!priv) { 3041 mwifiex_dbg(adapter, ERROR, 3042 "could not get free private struct\n"); 3043 return ERR_PTR(-EFAULT); 3044 } 3045 3046 priv->wdev.wiphy = wiphy; 3047 /* At start-up, wpa_supplicant tries to change the interface 3048 * to NL80211_IFTYPE_STATION if it is not managed mode. 3049 */ 3050 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT; 3051 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT; 3052 3053 /* Setting bss_type to P2P tells firmware that this interface 3054 * is receiving P2P peers found during find phase and doing 3055 * action frame handshake. 3056 */ 3057 priv->bss_type = MWIFIEX_BSS_TYPE_P2P; 3058 3059 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 3060 priv->bss_priority = 0; 3061 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 3062 priv->bss_started = 0; 3063 3064 if (mwifiex_cfg80211_init_p2p_client(priv)) { 3065 memset(&priv->wdev, 0, sizeof(priv->wdev)); 3066 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 3067 return ERR_PTR(-EFAULT); 3068 } 3069 3070 break; 3071 default: 3072 mwifiex_dbg(adapter, ERROR, "type not supported\n"); 3073 return ERR_PTR(-EINVAL); 3074 } 3075 3076 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name, 3077 name_assign_type, ether_setup, 3078 IEEE80211_NUM_ACS, 1); 3079 if (!dev) { 3080 mwifiex_dbg(adapter, ERROR, 3081 "no memory available for netdevice\n"); 3082 ret = -ENOMEM; 3083 goto err_alloc_netdev; 3084 } 3085 3086 mwifiex_init_priv_params(priv, dev); 3087 3088 priv->netdev = dev; 3089 3090 if (!adapter->mfg_mode) { 3091 mwifiex_set_mac_address(priv, dev, false, NULL); 3092 3093 ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 3094 HostCmd_ACT_GEN_SET, 0, NULL, true); 3095 if (ret) 3096 goto err_set_bss_mode; 3097 3098 ret = mwifiex_sta_init_cmd(priv, false, false); 3099 if (ret) 3100 goto err_sta_init; 3101 } 3102 3103 mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv); 3104 if (adapter->is_hw_11ac_capable) 3105 mwifiex_setup_vht_caps( 3106 &wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv); 3107 3108 if (adapter->config_bands & BAND_A) 3109 mwifiex_setup_ht_caps( 3110 &wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv); 3111 3112 if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable) 3113 mwifiex_setup_vht_caps( 3114 &wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv); 3115 3116 dev_net_set(dev, wiphy_net(wiphy)); 3117 dev->ieee80211_ptr = &priv->wdev; 3118 dev->ieee80211_ptr->iftype = priv->bss_mode; 3119 SET_NETDEV_DEV(dev, wiphy_dev(wiphy)); 3120 3121 dev->flags |= IFF_BROADCAST | IFF_MULTICAST; 3122 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT; 3123 dev->needed_headroom = MWIFIEX_MIN_DATA_HEADER_LEN; 3124 dev->ethtool_ops = &mwifiex_ethtool_ops; 3125 3126 mdev_priv = netdev_priv(dev); 3127 *((unsigned long *) mdev_priv) = (unsigned long) priv; 3128 3129 SET_NETDEV_DEV(dev, adapter->dev); 3130 3131 priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s", 3132 WQ_HIGHPRI | 3133 WQ_MEM_RECLAIM | 3134 WQ_UNBOUND, 0, name); 3135 if (!priv->dfs_cac_workqueue) { 3136 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS CAC queue\n"); 3137 ret = -ENOMEM; 3138 goto err_alloc_cac; 3139 } 3140 3141 INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue); 3142 3143 priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s", 3144 WQ_HIGHPRI | WQ_UNBOUND | 3145 WQ_MEM_RECLAIM, 0, name); 3146 if (!priv->dfs_chan_sw_workqueue) { 3147 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS channel sw queue\n"); 3148 ret = -ENOMEM; 3149 goto err_alloc_chsw; 3150 } 3151 3152 INIT_DELAYED_WORK(&priv->dfs_chan_sw_work, 3153 mwifiex_dfs_chan_sw_work_queue); 3154 3155 mutex_init(&priv->async_mutex); 3156 3157 /* Register network device */ 3158 if (cfg80211_register_netdevice(dev)) { 3159 mwifiex_dbg(adapter, ERROR, "cannot register network device\n"); 3160 ret = -EFAULT; 3161 goto err_reg_netdev; 3162 } 3163 3164 mwifiex_dbg(adapter, INFO, 3165 "info: %s: Marvell 802.11 Adapter\n", dev->name); 3166 3167 #ifdef CONFIG_DEBUG_FS 3168 mwifiex_dev_debugfs_init(priv); 3169 #endif 3170 3171 update_vif_type_counter(adapter, type, +1); 3172 3173 return &priv->wdev; 3174 3175 err_reg_netdev: 3176 destroy_workqueue(priv->dfs_chan_sw_workqueue); 3177 priv->dfs_chan_sw_workqueue = NULL; 3178 err_alloc_chsw: 3179 destroy_workqueue(priv->dfs_cac_workqueue); 3180 priv->dfs_cac_workqueue = NULL; 3181 err_alloc_cac: 3182 free_netdev(dev); 3183 priv->netdev = NULL; 3184 err_sta_init: 3185 err_set_bss_mode: 3186 err_alloc_netdev: 3187 memset(&priv->wdev, 0, sizeof(priv->wdev)); 3188 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 3189 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; 3190 return ERR_PTR(ret); 3191 } 3192 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf); 3193 3194 /* 3195 * del_virtual_intf: remove the virtual interface determined by dev 3196 */ 3197 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) 3198 { 3199 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 3200 struct mwifiex_adapter *adapter = priv->adapter; 3201 struct sk_buff *skb, *tmp; 3202 3203 #ifdef CONFIG_DEBUG_FS 3204 mwifiex_dev_debugfs_remove(priv); 3205 #endif 3206 3207 if (priv->sched_scanning) 3208 priv->sched_scanning = false; 3209 3210 mwifiex_stop_net_dev_queue(priv->netdev, adapter); 3211 3212 skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) { 3213 skb_unlink(skb, &priv->bypass_txq); 3214 mwifiex_write_data_complete(priv->adapter, skb, 0, -1); 3215 } 3216 3217 if (netif_carrier_ok(priv->netdev)) 3218 netif_carrier_off(priv->netdev); 3219 3220 if (wdev->netdev->reg_state == NETREG_REGISTERED) 3221 cfg80211_unregister_netdevice(wdev->netdev); 3222 3223 if (priv->dfs_cac_workqueue) { 3224 destroy_workqueue(priv->dfs_cac_workqueue); 3225 priv->dfs_cac_workqueue = NULL; 3226 } 3227 3228 if (priv->dfs_chan_sw_workqueue) { 3229 destroy_workqueue(priv->dfs_chan_sw_workqueue); 3230 priv->dfs_chan_sw_workqueue = NULL; 3231 } 3232 /* Clear the priv in adapter */ 3233 priv->netdev = NULL; 3234 3235 update_vif_type_counter(adapter, priv->bss_mode, -1); 3236 3237 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; 3238 3239 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA || 3240 GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) 3241 kfree(priv->hist_data); 3242 3243 return 0; 3244 } 3245 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf); 3246 3247 static bool 3248 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq, 3249 u8 max_byte_seq) 3250 { 3251 int j, k, valid_byte_cnt = 0; 3252 bool dont_care_byte = false; 3253 3254 for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) { 3255 for (k = 0; k < 8; k++) { 3256 if (pat->mask[j] & 1 << k) { 3257 memcpy(byte_seq + valid_byte_cnt, 3258 &pat->pattern[j * 8 + k], 1); 3259 valid_byte_cnt++; 3260 if (dont_care_byte) 3261 return false; 3262 } else { 3263 if (valid_byte_cnt) 3264 dont_care_byte = true; 3265 } 3266 3267 /* wildcard bytes record as the offset 3268 * before the valid byte 3269 */ 3270 if (!valid_byte_cnt && !dont_care_byte) 3271 pat->pkt_offset++; 3272 3273 if (valid_byte_cnt > max_byte_seq) 3274 return false; 3275 } 3276 } 3277 3278 byte_seq[max_byte_seq] = valid_byte_cnt; 3279 3280 return true; 3281 } 3282 3283 #ifdef CONFIG_PM 3284 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv, 3285 struct mwifiex_mef_entry *mef_entry) 3286 { 3287 int i, filt_num = 0, num_ipv4 = 0; 3288 struct in_device *in_dev; 3289 struct in_ifaddr *ifa; 3290 __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR]; 3291 struct mwifiex_adapter *adapter = priv->adapter; 3292 3293 mef_entry->mode = MEF_MODE_HOST_SLEEP; 3294 mef_entry->action = MEF_ACTION_AUTO_ARP; 3295 3296 /* Enable ARP offload feature */ 3297 memset(ips, 0, sizeof(ips)); 3298 for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) { 3299 if (adapter->priv[i]->netdev) { 3300 in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev); 3301 if (!in_dev) 3302 continue; 3303 ifa = rtnl_dereference(in_dev->ifa_list); 3304 if (!ifa || !ifa->ifa_local) 3305 continue; 3306 ips[i] = ifa->ifa_local; 3307 num_ipv4++; 3308 } 3309 } 3310 3311 for (i = 0; i < num_ipv4; i++) { 3312 if (!ips[i]) 3313 continue; 3314 mef_entry->filter[filt_num].repeat = 1; 3315 memcpy(mef_entry->filter[filt_num].byte_seq, 3316 (u8 *)&ips[i], sizeof(ips[i])); 3317 mef_entry->filter[filt_num]. 3318 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3319 sizeof(ips[i]); 3320 mef_entry->filter[filt_num].offset = 46; 3321 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3322 if (filt_num) { 3323 mef_entry->filter[filt_num].filt_action = 3324 TYPE_OR; 3325 } 3326 filt_num++; 3327 } 3328 3329 mef_entry->filter[filt_num].repeat = 1; 3330 mef_entry->filter[filt_num].byte_seq[0] = 0x08; 3331 mef_entry->filter[filt_num].byte_seq[1] = 0x06; 3332 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2; 3333 mef_entry->filter[filt_num].offset = 20; 3334 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3335 mef_entry->filter[filt_num].filt_action = TYPE_AND; 3336 } 3337 3338 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv, 3339 struct mwifiex_ds_mef_cfg *mef_cfg, 3340 struct mwifiex_mef_entry *mef_entry, 3341 struct cfg80211_wowlan *wowlan) 3342 { 3343 int i, filt_num = 0, ret = 0; 3344 bool first_pat = true; 3345 u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1]; 3346 static const u8 ipv4_mc_mac[] = {0x33, 0x33}; 3347 static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e}; 3348 3349 mef_entry->mode = MEF_MODE_HOST_SLEEP; 3350 mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST; 3351 3352 for (i = 0; i < wowlan->n_patterns; i++) { 3353 memset(byte_seq, 0, sizeof(byte_seq)); 3354 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i], 3355 byte_seq, 3356 MWIFIEX_MEF_MAX_BYTESEQ)) { 3357 mwifiex_dbg(priv->adapter, ERROR, 3358 "Pattern not supported\n"); 3359 return -EOPNOTSUPP; 3360 } 3361 3362 if (!wowlan->patterns[i].pkt_offset) { 3363 if (!(byte_seq[0] & 0x01) && 3364 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) { 3365 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST; 3366 continue; 3367 } else if (is_broadcast_ether_addr(byte_seq)) { 3368 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST; 3369 continue; 3370 } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) && 3371 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) || 3372 (!memcmp(byte_seq, ipv6_mc_mac, 3) && 3373 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) { 3374 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST; 3375 continue; 3376 } 3377 } 3378 mef_entry->filter[filt_num].repeat = 1; 3379 mef_entry->filter[filt_num].offset = 3380 wowlan->patterns[i].pkt_offset; 3381 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq, 3382 sizeof(byte_seq)); 3383 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3384 3385 if (first_pat) { 3386 first_pat = false; 3387 mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n"); 3388 } else { 3389 mef_entry->filter[filt_num].filt_action = TYPE_AND; 3390 } 3391 3392 filt_num++; 3393 } 3394 3395 if (wowlan->magic_pkt) { 3396 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST; 3397 mef_entry->filter[filt_num].repeat = 16; 3398 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr, 3399 ETH_ALEN); 3400 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3401 ETH_ALEN; 3402 mef_entry->filter[filt_num].offset = 28; 3403 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3404 if (filt_num) 3405 mef_entry->filter[filt_num].filt_action = TYPE_OR; 3406 3407 filt_num++; 3408 mef_entry->filter[filt_num].repeat = 16; 3409 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr, 3410 ETH_ALEN); 3411 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3412 ETH_ALEN; 3413 mef_entry->filter[filt_num].offset = 56; 3414 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3415 mef_entry->filter[filt_num].filt_action = TYPE_OR; 3416 mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n"); 3417 } 3418 return ret; 3419 } 3420 3421 static int mwifiex_set_mef_filter(struct mwifiex_private *priv, 3422 struct cfg80211_wowlan *wowlan) 3423 { 3424 int ret = 0, num_entries = 1; 3425 struct mwifiex_ds_mef_cfg mef_cfg; 3426 struct mwifiex_mef_entry *mef_entry; 3427 3428 if (wowlan->n_patterns || wowlan->magic_pkt) 3429 num_entries++; 3430 3431 mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL); 3432 if (!mef_entry) 3433 return -ENOMEM; 3434 3435 memset(&mef_cfg, 0, sizeof(mef_cfg)); 3436 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST | 3437 MWIFIEX_CRITERIA_UNICAST; 3438 mef_cfg.num_entries = num_entries; 3439 mef_cfg.mef_entry = mef_entry; 3440 3441 mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]); 3442 3443 if (wowlan->n_patterns || wowlan->magic_pkt) { 3444 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg, 3445 &mef_entry[1], wowlan); 3446 if (ret) 3447 goto err; 3448 } 3449 3450 if (!mef_cfg.criteria) 3451 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST | 3452 MWIFIEX_CRITERIA_UNICAST | 3453 MWIFIEX_CRITERIA_MULTICAST; 3454 3455 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG, 3456 HostCmd_ACT_GEN_SET, 0, 3457 &mef_cfg, true); 3458 3459 err: 3460 kfree(mef_entry); 3461 return ret; 3462 } 3463 3464 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy, 3465 struct cfg80211_wowlan *wowlan) 3466 { 3467 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3468 struct mwifiex_ds_hs_cfg hs_cfg; 3469 int i, ret = 0, retry_num = 10; 3470 struct mwifiex_private *priv; 3471 struct mwifiex_private *sta_priv = 3472 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3473 3474 sta_priv->scan_aborting = true; 3475 for (i = 0; i < adapter->priv_num; i++) { 3476 priv = adapter->priv[i]; 3477 mwifiex_abort_cac(priv); 3478 } 3479 3480 mwifiex_cancel_all_pending_cmd(adapter); 3481 3482 for (i = 0; i < adapter->priv_num; i++) { 3483 priv = adapter->priv[i]; 3484 if (priv && priv->netdev) 3485 netif_device_detach(priv->netdev); 3486 } 3487 3488 for (i = 0; i < retry_num; i++) { 3489 if (!mwifiex_wmm_lists_empty(adapter) || 3490 !mwifiex_bypass_txlist_empty(adapter) || 3491 !skb_queue_empty(&adapter->tx_data_q)) 3492 usleep_range(10000, 15000); 3493 else 3494 break; 3495 } 3496 3497 if (!wowlan) { 3498 mwifiex_dbg(adapter, INFO, 3499 "None of the WOWLAN triggers enabled\n"); 3500 ret = 0; 3501 goto done; 3502 } 3503 3504 if (!sta_priv->media_connected && !wowlan->nd_config) { 3505 mwifiex_dbg(adapter, ERROR, 3506 "Can not configure WOWLAN in disconnected state\n"); 3507 ret = 0; 3508 goto done; 3509 } 3510 3511 ret = mwifiex_set_mef_filter(sta_priv, wowlan); 3512 if (ret) { 3513 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n"); 3514 goto done; 3515 } 3516 3517 memset(&hs_cfg, 0, sizeof(hs_cfg)); 3518 hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions); 3519 3520 if (wowlan->nd_config) { 3521 mwifiex_dbg(adapter, INFO, "Wake on net detect\n"); 3522 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT; 3523 mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev, 3524 wowlan->nd_config); 3525 } 3526 3527 if (wowlan->disconnect) { 3528 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT; 3529 mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n"); 3530 } 3531 3532 hs_cfg.is_invoke_hostcmd = false; 3533 hs_cfg.gpio = adapter->hs_cfg.gpio; 3534 hs_cfg.gap = adapter->hs_cfg.gap; 3535 ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET, 3536 MWIFIEX_SYNC_CMD, &hs_cfg); 3537 if (ret) 3538 mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n"); 3539 3540 done: 3541 sta_priv->scan_aborting = false; 3542 return ret; 3543 } 3544 3545 static int mwifiex_cfg80211_resume(struct wiphy *wiphy) 3546 { 3547 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3548 struct mwifiex_private *priv; 3549 struct mwifiex_ds_wakeup_reason wakeup_reason; 3550 struct cfg80211_wowlan_wakeup wakeup_report; 3551 int i; 3552 bool report_wakeup_reason = true; 3553 3554 for (i = 0; i < adapter->priv_num; i++) { 3555 priv = adapter->priv[i]; 3556 if (priv && priv->netdev) 3557 netif_device_attach(priv->netdev); 3558 } 3559 3560 if (!wiphy->wowlan_config) 3561 goto done; 3562 3563 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3564 mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD, 3565 &wakeup_reason); 3566 memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup)); 3567 3568 wakeup_report.pattern_idx = -1; 3569 3570 switch (wakeup_reason.hs_wakeup_reason) { 3571 case NO_HSWAKEUP_REASON: 3572 break; 3573 case BCAST_DATA_MATCHED: 3574 break; 3575 case MCAST_DATA_MATCHED: 3576 break; 3577 case UCAST_DATA_MATCHED: 3578 break; 3579 case MASKTABLE_EVENT_MATCHED: 3580 break; 3581 case NON_MASKABLE_EVENT_MATCHED: 3582 if (wiphy->wowlan_config->disconnect) 3583 wakeup_report.disconnect = true; 3584 if (wiphy->wowlan_config->nd_config) 3585 wakeup_report.net_detect = adapter->nd_info; 3586 break; 3587 case NON_MASKABLE_CONDITION_MATCHED: 3588 break; 3589 case MAGIC_PATTERN_MATCHED: 3590 if (wiphy->wowlan_config->magic_pkt) 3591 wakeup_report.magic_pkt = true; 3592 if (wiphy->wowlan_config->n_patterns) 3593 wakeup_report.pattern_idx = 1; 3594 break; 3595 case GTK_REKEY_FAILURE: 3596 if (wiphy->wowlan_config->gtk_rekey_failure) 3597 wakeup_report.gtk_rekey_failure = true; 3598 break; 3599 default: 3600 report_wakeup_reason = false; 3601 break; 3602 } 3603 3604 if (report_wakeup_reason) 3605 cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report, 3606 GFP_KERNEL); 3607 3608 done: 3609 if (adapter->nd_info) { 3610 for (i = 0 ; i < adapter->nd_info->n_matches ; i++) 3611 kfree(adapter->nd_info->matches[i]); 3612 kfree(adapter->nd_info); 3613 adapter->nd_info = NULL; 3614 } 3615 3616 return 0; 3617 } 3618 3619 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy, 3620 bool enabled) 3621 { 3622 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3623 3624 device_set_wakeup_enable(adapter->dev, enabled); 3625 } 3626 3627 static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev, 3628 struct cfg80211_gtk_rekey_data *data) 3629 { 3630 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3631 3632 if (!ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info)) 3633 return -EOPNOTSUPP; 3634 3635 return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG, 3636 HostCmd_ACT_GEN_SET, 0, data, true); 3637 } 3638 3639 #endif 3640 3641 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq) 3642 { 3643 static const u8 ipv4_mc_mac[] = {0x33, 0x33}; 3644 static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e}; 3645 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff}; 3646 3647 if ((byte_seq[0] & 0x01) && 3648 (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1)) 3649 return PACKET_TYPE_UNICAST; 3650 else if (!memcmp(byte_seq, bc_mac, 4)) 3651 return PACKET_TYPE_BROADCAST; 3652 else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) && 3653 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) || 3654 (!memcmp(byte_seq, ipv6_mc_mac, 3) && 3655 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3)) 3656 return PACKET_TYPE_MULTICAST; 3657 3658 return 0; 3659 } 3660 3661 static int 3662 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv, 3663 struct cfg80211_coalesce_rules *crule, 3664 struct mwifiex_coalesce_rule *mrule) 3665 { 3666 u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1]; 3667 struct filt_field_param *param; 3668 int i; 3669 3670 mrule->max_coalescing_delay = crule->delay; 3671 3672 param = mrule->params; 3673 3674 for (i = 0; i < crule->n_patterns; i++) { 3675 memset(byte_seq, 0, sizeof(byte_seq)); 3676 if (!mwifiex_is_pattern_supported(&crule->patterns[i], 3677 byte_seq, 3678 MWIFIEX_COALESCE_MAX_BYTESEQ)) { 3679 mwifiex_dbg(priv->adapter, ERROR, 3680 "Pattern not supported\n"); 3681 return -EOPNOTSUPP; 3682 } 3683 3684 if (!crule->patterns[i].pkt_offset) { 3685 u8 pkt_type; 3686 3687 pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq); 3688 if (pkt_type && mrule->pkt_type) { 3689 mwifiex_dbg(priv->adapter, ERROR, 3690 "Multiple packet types not allowed\n"); 3691 return -EOPNOTSUPP; 3692 } else if (pkt_type) { 3693 mrule->pkt_type = pkt_type; 3694 continue; 3695 } 3696 } 3697 3698 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH) 3699 param->operation = RECV_FILTER_MATCH_TYPE_EQ; 3700 else 3701 param->operation = RECV_FILTER_MATCH_TYPE_NE; 3702 3703 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ]; 3704 memcpy(param->operand_byte_stream, byte_seq, 3705 param->operand_len); 3706 param->offset = crule->patterns[i].pkt_offset; 3707 param++; 3708 3709 mrule->num_of_fields++; 3710 } 3711 3712 if (!mrule->pkt_type) { 3713 mwifiex_dbg(priv->adapter, ERROR, 3714 "Packet type can not be determined\n"); 3715 return -EOPNOTSUPP; 3716 } 3717 3718 return 0; 3719 } 3720 3721 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy, 3722 struct cfg80211_coalesce *coalesce) 3723 { 3724 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3725 int i, ret; 3726 struct mwifiex_ds_coalesce_cfg coalesce_cfg; 3727 struct mwifiex_private *priv = 3728 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3729 3730 memset(&coalesce_cfg, 0, sizeof(coalesce_cfg)); 3731 if (!coalesce) { 3732 mwifiex_dbg(adapter, WARN, 3733 "Disable coalesce and reset all previous rules\n"); 3734 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG, 3735 HostCmd_ACT_GEN_SET, 0, 3736 &coalesce_cfg, true); 3737 } 3738 3739 coalesce_cfg.num_of_rules = coalesce->n_rules; 3740 for (i = 0; i < coalesce->n_rules; i++) { 3741 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i], 3742 &coalesce_cfg.rule[i]); 3743 if (ret) { 3744 mwifiex_dbg(adapter, ERROR, 3745 "Recheck the patterns provided for rule %d\n", 3746 i + 1); 3747 return ret; 3748 } 3749 } 3750 3751 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG, 3752 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true); 3753 } 3754 3755 /* cfg80211 ops handler for tdls_mgmt. 3756 * Function prepares TDLS action frame packets and forwards them to FW 3757 */ 3758 static int 3759 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 3760 const u8 *peer, int link_id, u8 action_code, 3761 u8 dialog_token, u16 status_code, 3762 u32 peer_capability, bool initiator, 3763 const u8 *extra_ies, size_t extra_ies_len) 3764 { 3765 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3766 int ret; 3767 3768 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) 3769 return -EOPNOTSUPP; 3770 3771 /* make sure we are in station mode and connected */ 3772 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected)) 3773 return -EOPNOTSUPP; 3774 3775 switch (action_code) { 3776 case WLAN_TDLS_SETUP_REQUEST: 3777 mwifiex_dbg(priv->adapter, MSG, 3778 "Send TDLS Setup Request to %pM status_code=%d\n", 3779 peer, status_code); 3780 mwifiex_add_auto_tdls_peer(priv, peer); 3781 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3782 dialog_token, status_code, 3783 extra_ies, extra_ies_len); 3784 break; 3785 case WLAN_TDLS_SETUP_RESPONSE: 3786 mwifiex_add_auto_tdls_peer(priv, peer); 3787 mwifiex_dbg(priv->adapter, MSG, 3788 "Send TDLS Setup Response to %pM status_code=%d\n", 3789 peer, status_code); 3790 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3791 dialog_token, status_code, 3792 extra_ies, extra_ies_len); 3793 break; 3794 case WLAN_TDLS_SETUP_CONFIRM: 3795 mwifiex_dbg(priv->adapter, MSG, 3796 "Send TDLS Confirm to %pM status_code=%d\n", peer, 3797 status_code); 3798 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3799 dialog_token, status_code, 3800 extra_ies, extra_ies_len); 3801 break; 3802 case WLAN_TDLS_TEARDOWN: 3803 mwifiex_dbg(priv->adapter, MSG, 3804 "Send TDLS Tear down to %pM\n", peer); 3805 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3806 dialog_token, status_code, 3807 extra_ies, extra_ies_len); 3808 break; 3809 case WLAN_TDLS_DISCOVERY_REQUEST: 3810 mwifiex_dbg(priv->adapter, MSG, 3811 "Send TDLS Discovery Request to %pM\n", peer); 3812 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3813 dialog_token, status_code, 3814 extra_ies, extra_ies_len); 3815 break; 3816 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: 3817 mwifiex_dbg(priv->adapter, MSG, 3818 "Send TDLS Discovery Response to %pM\n", peer); 3819 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code, 3820 dialog_token, status_code, 3821 extra_ies, extra_ies_len); 3822 break; 3823 default: 3824 mwifiex_dbg(priv->adapter, ERROR, 3825 "Unknown TDLS mgmt/action frame %pM\n", peer); 3826 ret = -EINVAL; 3827 break; 3828 } 3829 3830 return ret; 3831 } 3832 3833 static int 3834 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 3835 const u8 *peer, enum nl80211_tdls_operation action) 3836 { 3837 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3838 3839 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) || 3840 !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)) 3841 return -EOPNOTSUPP; 3842 3843 /* make sure we are in station mode and connected */ 3844 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected)) 3845 return -EOPNOTSUPP; 3846 3847 mwifiex_dbg(priv->adapter, MSG, 3848 "TDLS peer=%pM, oper=%d\n", peer, action); 3849 3850 switch (action) { 3851 case NL80211_TDLS_ENABLE_LINK: 3852 action = MWIFIEX_TDLS_ENABLE_LINK; 3853 break; 3854 case NL80211_TDLS_DISABLE_LINK: 3855 action = MWIFIEX_TDLS_DISABLE_LINK; 3856 break; 3857 case NL80211_TDLS_TEARDOWN: 3858 /* shouldn't happen!*/ 3859 mwifiex_dbg(priv->adapter, ERROR, 3860 "tdls_oper: teardown from driver not supported\n"); 3861 return -EINVAL; 3862 case NL80211_TDLS_SETUP: 3863 /* shouldn't happen!*/ 3864 mwifiex_dbg(priv->adapter, ERROR, 3865 "tdls_oper: setup from driver not supported\n"); 3866 return -EINVAL; 3867 case NL80211_TDLS_DISCOVERY_REQ: 3868 /* shouldn't happen!*/ 3869 mwifiex_dbg(priv->adapter, ERROR, 3870 "tdls_oper: discovery from driver not supported\n"); 3871 return -EINVAL; 3872 default: 3873 mwifiex_dbg(priv->adapter, ERROR, 3874 "tdls_oper: operation not supported\n"); 3875 return -EOPNOTSUPP; 3876 } 3877 3878 return mwifiex_tdls_oper(priv, peer, action); 3879 } 3880 3881 static int 3882 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev, 3883 const u8 *addr, u8 oper_class, 3884 struct cfg80211_chan_def *chandef) 3885 { 3886 struct mwifiex_sta_node *sta_ptr; 3887 u16 chan; 3888 u8 second_chan_offset, band; 3889 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3890 3891 spin_lock_bh(&priv->sta_list_spinlock); 3892 sta_ptr = mwifiex_get_sta_entry(priv, addr); 3893 if (!sta_ptr) { 3894 spin_unlock_bh(&priv->sta_list_spinlock); 3895 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n", 3896 __func__, addr); 3897 return -ENOENT; 3898 } 3899 3900 if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] & 3901 WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) { 3902 spin_unlock_bh(&priv->sta_list_spinlock); 3903 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr); 3904 return -ENOENT; 3905 } 3906 3907 if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING || 3908 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) { 3909 spin_unlock_bh(&priv->sta_list_spinlock); 3910 wiphy_err(wiphy, "channel switch is running, abort request\n"); 3911 return -EALREADY; 3912 } 3913 spin_unlock_bh(&priv->sta_list_spinlock); 3914 3915 chan = chandef->chan->hw_value; 3916 second_chan_offset = mwifiex_get_sec_chan_offset(chan); 3917 band = chandef->chan->band; 3918 mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band); 3919 3920 return 0; 3921 } 3922 3923 static void 3924 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy, 3925 struct net_device *dev, 3926 const u8 *addr) 3927 { 3928 struct mwifiex_sta_node *sta_ptr; 3929 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3930 3931 spin_lock_bh(&priv->sta_list_spinlock); 3932 sta_ptr = mwifiex_get_sta_entry(priv, addr); 3933 if (!sta_ptr) { 3934 spin_unlock_bh(&priv->sta_list_spinlock); 3935 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n", 3936 __func__, addr); 3937 } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING || 3938 sta_ptr->tdls_status == TDLS_IN_BASE_CHAN || 3939 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) { 3940 spin_unlock_bh(&priv->sta_list_spinlock); 3941 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n", 3942 addr); 3943 } else { 3944 spin_unlock_bh(&priv->sta_list_spinlock); 3945 mwifiex_stop_tdls_cs(priv, addr); 3946 } 3947 } 3948 3949 static int 3950 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev, 3951 const u8 *mac, struct station_parameters *params) 3952 { 3953 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3954 3955 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) 3956 return -EOPNOTSUPP; 3957 3958 /* make sure we are in station mode and connected */ 3959 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected) 3960 return -EOPNOTSUPP; 3961 3962 return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK); 3963 } 3964 3965 static int 3966 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3967 struct cfg80211_csa_settings *params) 3968 { 3969 struct ieee_types_header *chsw_ie; 3970 struct ieee80211_channel_sw_ie *channel_sw; 3971 int chsw_msec; 3972 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3973 3974 if (priv->adapter->scan_processing) { 3975 mwifiex_dbg(priv->adapter, ERROR, 3976 "radar detection: scan in process...\n"); 3977 return -EBUSY; 3978 } 3979 3980 if (priv->wdev.cac_started) 3981 return -EBUSY; 3982 3983 if (cfg80211_chandef_identical(¶ms->chandef, 3984 &priv->dfs_chandef)) 3985 return -EINVAL; 3986 3987 chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH, 3988 params->beacon_csa.tail, 3989 params->beacon_csa.tail_len); 3990 if (!chsw_ie) { 3991 mwifiex_dbg(priv->adapter, ERROR, 3992 "Could not parse channel switch announcement IE\n"); 3993 return -EINVAL; 3994 } 3995 3996 channel_sw = (void *)(chsw_ie + 1); 3997 if (channel_sw->mode) { 3998 if (netif_carrier_ok(priv->netdev)) 3999 netif_carrier_off(priv->netdev); 4000 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter); 4001 } 4002 4003 if (mwifiex_del_mgmt_ies(priv)) 4004 mwifiex_dbg(priv->adapter, ERROR, 4005 "Failed to delete mgmt IEs!\n"); 4006 4007 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon_csa)) { 4008 mwifiex_dbg(priv->adapter, ERROR, 4009 "%s: setting mgmt ies failed\n", __func__); 4010 return -EFAULT; 4011 } 4012 4013 memcpy(&priv->dfs_chandef, ¶ms->chandef, sizeof(priv->dfs_chandef)); 4014 memcpy(&priv->beacon_after, ¶ms->beacon_after, 4015 sizeof(priv->beacon_after)); 4016 4017 chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100); 4018 queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work, 4019 msecs_to_jiffies(chsw_msec)); 4020 return 0; 4021 } 4022 4023 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy, 4024 struct wireless_dev *wdev, 4025 unsigned int link_id, 4026 struct cfg80211_chan_def *chandef) 4027 { 4028 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 4029 struct mwifiex_bssdescriptor *curr_bss; 4030 struct ieee80211_channel *chan; 4031 enum nl80211_channel_type chan_type; 4032 enum nl80211_band band; 4033 int freq; 4034 int ret = -ENODATA; 4035 4036 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP && 4037 cfg80211_chandef_valid(&priv->bss_chandef)) { 4038 *chandef = priv->bss_chandef; 4039 ret = 0; 4040 } else if (priv->media_connected) { 4041 curr_bss = &priv->curr_bss_params.bss_descriptor; 4042 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 4043 freq = ieee80211_channel_to_frequency(curr_bss->channel, band); 4044 chan = ieee80211_get_channel(wiphy, freq); 4045 4046 if (priv->ht_param_present) { 4047 chan_type = mwifiex_get_chan_type(priv); 4048 cfg80211_chandef_create(chandef, chan, chan_type); 4049 } else { 4050 cfg80211_chandef_create(chandef, chan, 4051 NL80211_CHAN_NO_HT); 4052 } 4053 ret = 0; 4054 } 4055 4056 return ret; 4057 } 4058 4059 #ifdef CONFIG_NL80211_TESTMODE 4060 4061 enum mwifiex_tm_attr { 4062 __MWIFIEX_TM_ATTR_INVALID = 0, 4063 MWIFIEX_TM_ATTR_CMD = 1, 4064 MWIFIEX_TM_ATTR_DATA = 2, 4065 4066 /* keep last */ 4067 __MWIFIEX_TM_ATTR_AFTER_LAST, 4068 MWIFIEX_TM_ATTR_MAX = __MWIFIEX_TM_ATTR_AFTER_LAST - 1, 4069 }; 4070 4071 static const struct nla_policy mwifiex_tm_policy[MWIFIEX_TM_ATTR_MAX + 1] = { 4072 [MWIFIEX_TM_ATTR_CMD] = { .type = NLA_U32 }, 4073 [MWIFIEX_TM_ATTR_DATA] = { .type = NLA_BINARY, 4074 .len = MWIFIEX_SIZE_OF_CMD_BUFFER }, 4075 }; 4076 4077 enum mwifiex_tm_command { 4078 MWIFIEX_TM_CMD_HOSTCMD = 0, 4079 }; 4080 4081 static int mwifiex_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev, 4082 void *data, int len) 4083 { 4084 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 4085 struct mwifiex_ds_misc_cmd *hostcmd; 4086 struct nlattr *tb[MWIFIEX_TM_ATTR_MAX + 1]; 4087 struct sk_buff *skb; 4088 int err; 4089 4090 if (!priv) 4091 return -EINVAL; 4092 4093 err = nla_parse_deprecated(tb, MWIFIEX_TM_ATTR_MAX, data, len, 4094 mwifiex_tm_policy, NULL); 4095 if (err) 4096 return err; 4097 4098 if (!tb[MWIFIEX_TM_ATTR_CMD]) 4099 return -EINVAL; 4100 4101 switch (nla_get_u32(tb[MWIFIEX_TM_ATTR_CMD])) { 4102 case MWIFIEX_TM_CMD_HOSTCMD: 4103 if (!tb[MWIFIEX_TM_ATTR_DATA]) 4104 return -EINVAL; 4105 4106 hostcmd = kzalloc(sizeof(*hostcmd), GFP_KERNEL); 4107 if (!hostcmd) 4108 return -ENOMEM; 4109 4110 hostcmd->len = nla_len(tb[MWIFIEX_TM_ATTR_DATA]); 4111 memcpy(hostcmd->cmd, nla_data(tb[MWIFIEX_TM_ATTR_DATA]), 4112 hostcmd->len); 4113 4114 if (mwifiex_send_cmd(priv, 0, 0, 0, hostcmd, true)) { 4115 dev_err(priv->adapter->dev, "Failed to process hostcmd\n"); 4116 kfree(hostcmd); 4117 return -EFAULT; 4118 } 4119 4120 /* process hostcmd response*/ 4121 skb = cfg80211_testmode_alloc_reply_skb(wiphy, hostcmd->len); 4122 if (!skb) { 4123 kfree(hostcmd); 4124 return -ENOMEM; 4125 } 4126 err = nla_put(skb, MWIFIEX_TM_ATTR_DATA, 4127 hostcmd->len, hostcmd->cmd); 4128 if (err) { 4129 kfree(hostcmd); 4130 kfree_skb(skb); 4131 return -EMSGSIZE; 4132 } 4133 4134 err = cfg80211_testmode_reply(skb); 4135 kfree(hostcmd); 4136 return err; 4137 default: 4138 return -EOPNOTSUPP; 4139 } 4140 } 4141 #endif 4142 4143 static int 4144 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy, 4145 struct net_device *dev, 4146 struct cfg80211_chan_def *chandef, 4147 u32 cac_time_ms) 4148 { 4149 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 4150 struct mwifiex_radar_params radar_params; 4151 4152 if (priv->adapter->scan_processing) { 4153 mwifiex_dbg(priv->adapter, ERROR, 4154 "radar detection: scan already in process...\n"); 4155 return -EBUSY; 4156 } 4157 4158 if (!mwifiex_is_11h_active(priv)) { 4159 mwifiex_dbg(priv->adapter, INFO, 4160 "Enable 11h extensions in FW\n"); 4161 if (mwifiex_11h_activate(priv, true)) { 4162 mwifiex_dbg(priv->adapter, ERROR, 4163 "Failed to activate 11h extensions!!"); 4164 return -1; 4165 } 4166 priv->state_11h.is_11h_active = true; 4167 } 4168 4169 memset(&radar_params, 0, sizeof(struct mwifiex_radar_params)); 4170 radar_params.chandef = chandef; 4171 radar_params.cac_time_ms = cac_time_ms; 4172 4173 memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef)); 4174 4175 if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST, 4176 HostCmd_ACT_GEN_SET, 0, &radar_params, true)) 4177 return -1; 4178 4179 queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work, 4180 msecs_to_jiffies(cac_time_ms)); 4181 return 0; 4182 } 4183 4184 static int 4185 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev, 4186 const u8 *mac, 4187 struct station_parameters *params) 4188 { 4189 int ret; 4190 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 4191 4192 /* we support change_station handler only for TDLS peers*/ 4193 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) 4194 return -EOPNOTSUPP; 4195 4196 /* make sure we are in station mode and connected */ 4197 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected) 4198 return -EOPNOTSUPP; 4199 4200 priv->sta_params = params; 4201 4202 ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK); 4203 priv->sta_params = NULL; 4204 4205 return ret; 4206 } 4207 4208 /* station cfg80211 operations */ 4209 static struct cfg80211_ops mwifiex_cfg80211_ops = { 4210 .add_virtual_intf = mwifiex_add_virtual_intf, 4211 .del_virtual_intf = mwifiex_del_virtual_intf, 4212 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf, 4213 .scan = mwifiex_cfg80211_scan, 4214 .connect = mwifiex_cfg80211_connect, 4215 .disconnect = mwifiex_cfg80211_disconnect, 4216 .get_station = mwifiex_cfg80211_get_station, 4217 .dump_station = mwifiex_cfg80211_dump_station, 4218 .dump_survey = mwifiex_cfg80211_dump_survey, 4219 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params, 4220 .join_ibss = mwifiex_cfg80211_join_ibss, 4221 .leave_ibss = mwifiex_cfg80211_leave_ibss, 4222 .add_key = mwifiex_cfg80211_add_key, 4223 .del_key = mwifiex_cfg80211_del_key, 4224 .set_default_mgmt_key = mwifiex_cfg80211_set_default_mgmt_key, 4225 .mgmt_tx = mwifiex_cfg80211_mgmt_tx, 4226 .update_mgmt_frame_registrations = 4227 mwifiex_cfg80211_update_mgmt_frame_registrations, 4228 .remain_on_channel = mwifiex_cfg80211_remain_on_channel, 4229 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel, 4230 .set_default_key = mwifiex_cfg80211_set_default_key, 4231 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt, 4232 .set_tx_power = mwifiex_cfg80211_set_tx_power, 4233 .get_tx_power = mwifiex_cfg80211_get_tx_power, 4234 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask, 4235 .start_ap = mwifiex_cfg80211_start_ap, 4236 .stop_ap = mwifiex_cfg80211_stop_ap, 4237 .change_beacon = mwifiex_cfg80211_change_beacon, 4238 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config, 4239 .set_antenna = mwifiex_cfg80211_set_antenna, 4240 .get_antenna = mwifiex_cfg80211_get_antenna, 4241 .del_station = mwifiex_cfg80211_del_station, 4242 .sched_scan_start = mwifiex_cfg80211_sched_scan_start, 4243 .sched_scan_stop = mwifiex_cfg80211_sched_scan_stop, 4244 #ifdef CONFIG_PM 4245 .suspend = mwifiex_cfg80211_suspend, 4246 .resume = mwifiex_cfg80211_resume, 4247 .set_wakeup = mwifiex_cfg80211_set_wakeup, 4248 .set_rekey_data = mwifiex_set_rekey_data, 4249 #endif 4250 .set_coalesce = mwifiex_cfg80211_set_coalesce, 4251 .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt, 4252 .tdls_oper = mwifiex_cfg80211_tdls_oper, 4253 .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch, 4254 .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch, 4255 .add_station = mwifiex_cfg80211_add_station, 4256 .change_station = mwifiex_cfg80211_change_station, 4257 CFG80211_TESTMODE_CMD(mwifiex_tm_cmd) 4258 .get_channel = mwifiex_cfg80211_get_channel, 4259 .start_radar_detection = mwifiex_cfg80211_start_radar_detection, 4260 .channel_switch = mwifiex_cfg80211_channel_switch, 4261 }; 4262 4263 #ifdef CONFIG_PM 4264 static const struct wiphy_wowlan_support mwifiex_wowlan_support = { 4265 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT | 4266 WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 4267 WIPHY_WOWLAN_GTK_REKEY_FAILURE, 4268 .n_patterns = MWIFIEX_MEF_MAX_FILTERS, 4269 .pattern_min_len = 1, 4270 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4271 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4272 .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS, 4273 }; 4274 4275 static const struct wiphy_wowlan_support mwifiex_wowlan_support_no_gtk = { 4276 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT | 4277 WIPHY_WOWLAN_NET_DETECT, 4278 .n_patterns = MWIFIEX_MEF_MAX_FILTERS, 4279 .pattern_min_len = 1, 4280 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4281 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4282 .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS, 4283 }; 4284 #endif 4285 4286 static bool mwifiex_is_valid_alpha2(const char *alpha2) 4287 { 4288 if (!alpha2 || strlen(alpha2) != 2) 4289 return false; 4290 4291 if (isalpha(alpha2[0]) && isalpha(alpha2[1])) 4292 return true; 4293 4294 return false; 4295 } 4296 4297 static const struct wiphy_coalesce_support mwifiex_coalesce_support = { 4298 .n_rules = MWIFIEX_COALESCE_MAX_RULES, 4299 .max_delay = MWIFIEX_MAX_COALESCING_DELAY, 4300 .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS, 4301 .pattern_min_len = 1, 4302 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4303 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4304 }; 4305 4306 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter) 4307 { 4308 u32 n_channels_bg, n_channels_a = 0; 4309 4310 n_channels_bg = mwifiex_band_2ghz.n_channels; 4311 4312 if (adapter->config_bands & BAND_A) 4313 n_channels_a = mwifiex_band_5ghz.n_channels; 4314 4315 /* allocate twice the number total channels, since the driver issues an 4316 * additional active scan request for hidden SSIDs on passive channels. 4317 */ 4318 adapter->num_in_chan_stats = 2 * (n_channels_bg + n_channels_a); 4319 adapter->chan_stats = vmalloc(array_size(sizeof(*adapter->chan_stats), 4320 adapter->num_in_chan_stats)); 4321 4322 if (!adapter->chan_stats) 4323 return -ENOMEM; 4324 4325 return 0; 4326 } 4327 4328 /* 4329 * This function registers the device with CFG802.11 subsystem. 4330 * 4331 * The function creates the wireless device/wiphy, populates it with 4332 * default parameters and handler function pointers, and finally 4333 * registers the device. 4334 */ 4335 4336 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter) 4337 { 4338 int ret; 4339 void *wdev_priv; 4340 struct wiphy *wiphy; 4341 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA]; 4342 u8 *country_code; 4343 u32 thr, retry; 4344 4345 /* create a new wiphy for use with cfg80211 */ 4346 wiphy = wiphy_new(&mwifiex_cfg80211_ops, 4347 sizeof(struct mwifiex_adapter *)); 4348 if (!wiphy) { 4349 mwifiex_dbg(adapter, ERROR, 4350 "%s: creating new wiphy\n", __func__); 4351 return -ENOMEM; 4352 } 4353 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH; 4354 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN; 4355 wiphy->mgmt_stypes = mwifiex_mgmt_stypes; 4356 wiphy->max_remain_on_channel_duration = 5000; 4357 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 4358 BIT(NL80211_IFTYPE_P2P_CLIENT) | 4359 BIT(NL80211_IFTYPE_P2P_GO) | 4360 BIT(NL80211_IFTYPE_AP); 4361 4362 if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info)) 4363 wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC); 4364 4365 wiphy->bands[NL80211_BAND_2GHZ] = &mwifiex_band_2ghz; 4366 if (adapter->config_bands & BAND_A) 4367 wiphy->bands[NL80211_BAND_5GHZ] = &mwifiex_band_5ghz; 4368 else 4369 wiphy->bands[NL80211_BAND_5GHZ] = NULL; 4370 4371 if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info)) 4372 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs; 4373 else if (adapter->is_hw_11ac_capable) 4374 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht; 4375 else 4376 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta; 4377 wiphy->n_iface_combinations = 1; 4378 4379 if (adapter->max_sta_conn > adapter->max_p2p_conn) 4380 wiphy->max_ap_assoc_sta = adapter->max_sta_conn; 4381 else 4382 wiphy->max_ap_assoc_sta = adapter->max_p2p_conn; 4383 4384 /* Initialize cipher suits */ 4385 wiphy->cipher_suites = mwifiex_cipher_suites; 4386 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites); 4387 4388 if (adapter->regd) { 4389 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 4390 REGULATORY_DISABLE_BEACON_HINTS | 4391 REGULATORY_COUNTRY_IE_IGNORE; 4392 wiphy_apply_custom_regulatory(wiphy, adapter->regd); 4393 } 4394 4395 ether_addr_copy(wiphy->perm_addr, adapter->perm_addr); 4396 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 4397 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | 4398 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | 4399 WIPHY_FLAG_AP_UAPSD | 4400 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | 4401 WIPHY_FLAG_HAS_CHANNEL_SWITCH | 4402 WIPHY_FLAG_NETNS_OK | 4403 WIPHY_FLAG_PS_ON_BY_DEFAULT; 4404 4405 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info)) 4406 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS | 4407 WIPHY_FLAG_TDLS_EXTERNAL_SETUP; 4408 4409 #ifdef CONFIG_PM 4410 if (ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info)) 4411 wiphy->wowlan = &mwifiex_wowlan_support; 4412 else 4413 wiphy->wowlan = &mwifiex_wowlan_support_no_gtk; 4414 #endif 4415 4416 wiphy->coalesce = &mwifiex_coalesce_support; 4417 4418 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 4419 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 4420 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; 4421 4422 wiphy->max_sched_scan_reqs = 1; 4423 wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH; 4424 wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN; 4425 wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH; 4426 4427 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1; 4428 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1; 4429 4430 wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER | 4431 NL80211_FEATURE_LOW_PRIORITY_SCAN | 4432 NL80211_FEATURE_NEED_OBSS_SCAN; 4433 4434 if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info)) 4435 wiphy->features |= NL80211_FEATURE_HT_IBSS; 4436 4437 if (ISSUPP_RANDOM_MAC(adapter->fw_cap_info)) 4438 wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 4439 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 4440 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 4441 4442 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info)) 4443 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 4444 4445 if (adapter->fw_api_ver == MWIFIEX_FW_V15) 4446 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS; 4447 4448 /* Reserve space for mwifiex specific private data for BSS */ 4449 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv); 4450 4451 wiphy->reg_notifier = mwifiex_reg_notifier; 4452 4453 /* Set struct mwifiex_adapter pointer in wiphy_priv */ 4454 wdev_priv = wiphy_priv(wiphy); 4455 *(unsigned long *)wdev_priv = (unsigned long)adapter; 4456 4457 set_wiphy_dev(wiphy, priv->adapter->dev); 4458 4459 ret = wiphy_register(wiphy); 4460 if (ret < 0) { 4461 mwifiex_dbg(adapter, ERROR, 4462 "%s: wiphy_register failed: %d\n", __func__, ret); 4463 wiphy_free(wiphy); 4464 return ret; 4465 } 4466 4467 if (!adapter->regd) { 4468 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) { 4469 mwifiex_dbg(adapter, INFO, 4470 "driver hint alpha2: %2.2s\n", reg_alpha2); 4471 regulatory_hint(wiphy, reg_alpha2); 4472 } else { 4473 if (adapter->region_code == 0x00) { 4474 mwifiex_dbg(adapter, WARN, 4475 "Ignore world regulatory domain\n"); 4476 } else { 4477 wiphy->regulatory_flags |= 4478 REGULATORY_DISABLE_BEACON_HINTS | 4479 REGULATORY_COUNTRY_IE_IGNORE; 4480 country_code = 4481 mwifiex_11d_code_2_region( 4482 adapter->region_code); 4483 if (country_code && 4484 regulatory_hint(wiphy, country_code)) 4485 mwifiex_dbg(priv->adapter, ERROR, 4486 "regulatory_hint() failed\n"); 4487 } 4488 } 4489 } 4490 4491 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4492 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true); 4493 wiphy->frag_threshold = thr; 4494 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4495 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true); 4496 wiphy->rts_threshold = thr; 4497 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4498 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true); 4499 wiphy->retry_short = (u8) retry; 4500 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4501 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true); 4502 wiphy->retry_long = (u8) retry; 4503 4504 adapter->wiphy = wiphy; 4505 return ret; 4506 } 4507