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 u8 key_index, bool pairwise, const u8 *mac_addr) 146 { 147 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev); 148 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 149 const u8 *peer_mac = pairwise ? mac_addr : bc_mac; 150 151 if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) { 152 mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n"); 153 return -EFAULT; 154 } 155 156 mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n"); 157 return 0; 158 } 159 160 /* 161 * This function forms an skb for management frame. 162 */ 163 static int 164 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len) 165 { 166 u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; 167 u16 pkt_len; 168 u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT; 169 170 pkt_len = len + ETH_ALEN; 171 172 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN + 173 MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len)); 174 memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len)); 175 176 memcpy(skb_push(skb, sizeof(tx_control)), 177 &tx_control, sizeof(tx_control)); 178 179 memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type)); 180 181 /* Add packet data and address4 */ 182 skb_put_data(skb, buf, sizeof(struct ieee80211_hdr_3addr)); 183 skb_put_data(skb, addr, ETH_ALEN); 184 skb_put_data(skb, buf + sizeof(struct ieee80211_hdr_3addr), 185 len - sizeof(struct ieee80211_hdr_3addr)); 186 187 skb->priority = LOW_PRIO_TID; 188 __net_timestamp(skb); 189 190 return 0; 191 } 192 193 /* 194 * CFG802.11 operation handler to transmit a management frame. 195 */ 196 static int 197 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 198 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 199 { 200 const u8 *buf = params->buf; 201 size_t len = params->len; 202 struct sk_buff *skb; 203 u16 pkt_len; 204 const struct ieee80211_mgmt *mgmt; 205 struct mwifiex_txinfo *tx_info; 206 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 207 208 if (!buf || !len) { 209 mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n"); 210 return -EFAULT; 211 } 212 213 mgmt = (const struct ieee80211_mgmt *)buf; 214 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA && 215 ieee80211_is_probe_resp(mgmt->frame_control)) { 216 /* Since we support offload probe resp, we need to skip probe 217 * resp in AP or GO mode */ 218 mwifiex_dbg(priv->adapter, INFO, 219 "info: skip to send probe resp in AP or GO mode\n"); 220 return 0; 221 } 222 223 pkt_len = len + ETH_ALEN; 224 skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN + 225 MWIFIEX_MGMT_FRAME_HEADER_SIZE + 226 pkt_len + sizeof(pkt_len)); 227 228 if (!skb) { 229 mwifiex_dbg(priv->adapter, ERROR, 230 "allocate skb failed for management frame\n"); 231 return -ENOMEM; 232 } 233 234 tx_info = MWIFIEX_SKB_TXCB(skb); 235 memset(tx_info, 0, sizeof(*tx_info)); 236 tx_info->bss_num = priv->bss_num; 237 tx_info->bss_type = priv->bss_type; 238 tx_info->pkt_len = pkt_len; 239 240 mwifiex_form_mgmt_frame(skb, buf, len); 241 *cookie = prandom_u32() | 1; 242 243 if (ieee80211_is_action(mgmt->frame_control)) 244 skb = mwifiex_clone_skb_for_tx_status(priv, 245 skb, 246 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie); 247 else 248 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, 249 GFP_ATOMIC); 250 251 mwifiex_queue_tx_pkt(priv, skb); 252 253 mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n"); 254 return 0; 255 } 256 257 /* 258 * CFG802.11 operation handler to register a mgmt frame. 259 */ 260 static void 261 mwifiex_cfg80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 262 struct wireless_dev *wdev, 263 struct mgmt_frame_regs *upd) 264 { 265 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 266 u32 mask = upd->interface_stypes; 267 268 if (mask != priv->mgmt_frame_mask) { 269 priv->mgmt_frame_mask = mask; 270 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG, 271 HostCmd_ACT_GEN_SET, 0, 272 &priv->mgmt_frame_mask, false); 273 mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n"); 274 } 275 } 276 277 /* 278 * CFG802.11 operation handler to remain on channel. 279 */ 280 static int 281 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy, 282 struct wireless_dev *wdev, 283 struct ieee80211_channel *chan, 284 unsigned int duration, u64 *cookie) 285 { 286 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 287 int ret; 288 289 if (!chan || !cookie) { 290 mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n"); 291 return -EINVAL; 292 } 293 294 if (priv->roc_cfg.cookie) { 295 mwifiex_dbg(priv->adapter, INFO, 296 "info: ongoing ROC, cookie = 0x%llx\n", 297 priv->roc_cfg.cookie); 298 return -EBUSY; 299 } 300 301 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan, 302 duration); 303 304 if (!ret) { 305 *cookie = prandom_u32() | 1; 306 priv->roc_cfg.cookie = *cookie; 307 priv->roc_cfg.chan = *chan; 308 309 cfg80211_ready_on_channel(wdev, *cookie, chan, 310 duration, GFP_ATOMIC); 311 312 mwifiex_dbg(priv->adapter, INFO, 313 "info: ROC, cookie = 0x%llx\n", *cookie); 314 } 315 316 return ret; 317 } 318 319 /* 320 * CFG802.11 operation handler to cancel remain on channel. 321 */ 322 static int 323 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy, 324 struct wireless_dev *wdev, u64 cookie) 325 { 326 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 327 int ret; 328 329 if (cookie != priv->roc_cfg.cookie) 330 return -ENOENT; 331 332 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE, 333 &priv->roc_cfg.chan, 0); 334 335 if (!ret) { 336 cfg80211_remain_on_channel_expired(wdev, cookie, 337 &priv->roc_cfg.chan, 338 GFP_ATOMIC); 339 340 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg)); 341 342 mwifiex_dbg(priv->adapter, INFO, 343 "info: cancel ROC, cookie = 0x%llx\n", cookie); 344 } 345 346 return ret; 347 } 348 349 /* 350 * CFG802.11 operation handler to set Tx power. 351 */ 352 static int 353 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy, 354 struct wireless_dev *wdev, 355 enum nl80211_tx_power_setting type, 356 int mbm) 357 { 358 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 359 struct mwifiex_private *priv; 360 struct mwifiex_power_cfg power_cfg; 361 int dbm = MBM_TO_DBM(mbm); 362 363 switch (type) { 364 case NL80211_TX_POWER_FIXED: 365 power_cfg.is_power_auto = 0; 366 power_cfg.is_power_fixed = 1; 367 power_cfg.power_level = dbm; 368 break; 369 case NL80211_TX_POWER_LIMITED: 370 power_cfg.is_power_auto = 0; 371 power_cfg.is_power_fixed = 0; 372 power_cfg.power_level = dbm; 373 break; 374 case NL80211_TX_POWER_AUTOMATIC: 375 power_cfg.is_power_auto = 1; 376 break; 377 } 378 379 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 380 381 return mwifiex_set_tx_power(priv, &power_cfg); 382 } 383 384 /* 385 * CFG802.11 operation handler to get Tx power. 386 */ 387 static int 388 mwifiex_cfg80211_get_tx_power(struct wiphy *wiphy, 389 struct wireless_dev *wdev, 390 int *dbm) 391 { 392 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 393 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 394 MWIFIEX_BSS_ROLE_ANY); 395 int ret = mwifiex_send_cmd(priv, HostCmd_CMD_RF_TX_PWR, 396 HostCmd_ACT_GEN_GET, 0, NULL, true); 397 398 if (ret < 0) 399 return ret; 400 401 /* tx_power_level is set in HostCmd_CMD_RF_TX_PWR command handler */ 402 *dbm = priv->tx_power_level; 403 404 return 0; 405 } 406 407 /* 408 * CFG802.11 operation handler to set Power Save option. 409 * 410 * The timeout value, if provided, is currently ignored. 411 */ 412 static int 413 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy, 414 struct net_device *dev, 415 bool enabled, int timeout) 416 { 417 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 418 u32 ps_mode; 419 420 if (timeout) 421 mwifiex_dbg(priv->adapter, INFO, 422 "info: ignore timeout value for IEEE Power Save\n"); 423 424 ps_mode = enabled; 425 426 return mwifiex_drv_set_power(priv, &ps_mode); 427 } 428 429 /* 430 * CFG802.11 operation handler to set the default network key. 431 */ 432 static int 433 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev, 434 u8 key_index, bool unicast, 435 bool multicast) 436 { 437 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev); 438 439 /* Return if WEP key not configured */ 440 if (!priv->sec_info.wep_enabled) 441 return 0; 442 443 if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) { 444 priv->wep_key_curr_index = key_index; 445 } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, 446 NULL, 0)) { 447 mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n"); 448 return -EFAULT; 449 } 450 451 return 0; 452 } 453 454 /* 455 * CFG802.11 operation handler to add a network key. 456 */ 457 static int 458 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev, 459 u8 key_index, bool pairwise, const u8 *mac_addr, 460 struct key_params *params) 461 { 462 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev); 463 struct mwifiex_wep_key *wep_key; 464 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 465 const u8 *peer_mac = pairwise ? mac_addr : bc_mac; 466 467 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP && 468 (params->cipher == WLAN_CIPHER_SUITE_WEP40 || 469 params->cipher == WLAN_CIPHER_SUITE_WEP104)) { 470 if (params->key && params->key_len) { 471 wep_key = &priv->wep_key[key_index]; 472 memset(wep_key, 0, sizeof(struct mwifiex_wep_key)); 473 memcpy(wep_key->key_material, params->key, 474 params->key_len); 475 wep_key->key_index = key_index; 476 wep_key->key_length = params->key_len; 477 priv->sec_info.wep_enabled = 1; 478 } 479 return 0; 480 } 481 482 if (mwifiex_set_encode(priv, params, params->key, params->key_len, 483 key_index, peer_mac, 0)) { 484 mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n"); 485 return -EFAULT; 486 } 487 488 return 0; 489 } 490 491 /* 492 * CFG802.11 operation handler to set default mgmt key. 493 */ 494 static int 495 mwifiex_cfg80211_set_default_mgmt_key(struct wiphy *wiphy, 496 struct net_device *netdev, 497 u8 key_index) 498 { 499 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev); 500 struct mwifiex_ds_encrypt_key encrypt_key; 501 502 wiphy_dbg(wiphy, "set default mgmt key, key index=%d\n", key_index); 503 504 memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key)); 505 encrypt_key.key_len = WLAN_KEY_LEN_CCMP; 506 encrypt_key.key_index = key_index; 507 encrypt_key.is_igtk_def_key = true; 508 eth_broadcast_addr(encrypt_key.mac_addr); 509 510 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, 511 HostCmd_ACT_GEN_SET, true, &encrypt_key, true)) { 512 mwifiex_dbg(priv->adapter, ERROR, 513 "Sending KEY_MATERIAL command failed\n"); 514 return -1; 515 } 516 517 return 0; 518 } 519 520 /* 521 * This function sends domain information to the firmware. 522 * 523 * The following information are passed to the firmware - 524 * - Country codes 525 * - Sub bands (first channel, number of channels, maximum Tx power) 526 */ 527 int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy) 528 { 529 u8 no_of_triplet = 0; 530 struct ieee80211_country_ie_triplet *t; 531 u8 no_of_parsed_chan = 0; 532 u8 first_chan = 0, next_chan = 0, max_pwr = 0; 533 u8 i, flag = 0; 534 enum nl80211_band band; 535 struct ieee80211_supported_band *sband; 536 struct ieee80211_channel *ch; 537 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 538 struct mwifiex_private *priv; 539 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg; 540 541 /* Set country code */ 542 domain_info->country_code[0] = adapter->country_code[0]; 543 domain_info->country_code[1] = adapter->country_code[1]; 544 domain_info->country_code[2] = ' '; 545 546 band = mwifiex_band_to_radio_type(adapter->config_bands); 547 if (!wiphy->bands[band]) { 548 mwifiex_dbg(adapter, ERROR, 549 "11D: setting domain info in FW\n"); 550 return -1; 551 } 552 553 sband = wiphy->bands[band]; 554 555 for (i = 0; i < sband->n_channels ; i++) { 556 ch = &sband->channels[i]; 557 if (ch->flags & IEEE80211_CHAN_DISABLED) 558 continue; 559 560 if (!flag) { 561 flag = 1; 562 first_chan = (u32) ch->hw_value; 563 next_chan = first_chan; 564 max_pwr = ch->max_power; 565 no_of_parsed_chan = 1; 566 continue; 567 } 568 569 if (ch->hw_value == next_chan + 1 && 570 ch->max_power == max_pwr) { 571 next_chan++; 572 no_of_parsed_chan++; 573 } else { 574 t = &domain_info->triplet[no_of_triplet]; 575 t->chans.first_channel = first_chan; 576 t->chans.num_channels = no_of_parsed_chan; 577 t->chans.max_power = max_pwr; 578 no_of_triplet++; 579 first_chan = (u32) ch->hw_value; 580 next_chan = first_chan; 581 max_pwr = ch->max_power; 582 no_of_parsed_chan = 1; 583 } 584 } 585 586 if (flag) { 587 t = &domain_info->triplet[no_of_triplet]; 588 t->chans.first_channel = first_chan; 589 t->chans.num_channels = no_of_parsed_chan; 590 t->chans.max_power = max_pwr; 591 no_of_triplet++; 592 } 593 594 domain_info->no_of_triplet = no_of_triplet; 595 596 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 597 598 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO, 599 HostCmd_ACT_GEN_SET, 0, NULL, false)) { 600 mwifiex_dbg(adapter, INFO, 601 "11D: setting domain info in FW\n"); 602 return -1; 603 } 604 605 return 0; 606 } 607 608 static void mwifiex_reg_apply_radar_flags(struct wiphy *wiphy) 609 { 610 struct ieee80211_supported_band *sband; 611 struct ieee80211_channel *chan; 612 unsigned int i; 613 614 if (!wiphy->bands[NL80211_BAND_5GHZ]) 615 return; 616 sband = wiphy->bands[NL80211_BAND_5GHZ]; 617 618 for (i = 0; i < sband->n_channels; i++) { 619 chan = &sband->channels[i]; 620 if ((!(chan->flags & IEEE80211_CHAN_DISABLED)) && 621 (chan->flags & IEEE80211_CHAN_RADAR)) 622 chan->flags |= IEEE80211_CHAN_NO_IR; 623 } 624 } 625 626 /* 627 * CFG802.11 regulatory domain callback function. 628 * 629 * This function is called when the regulatory domain is changed due to the 630 * following reasons - 631 * - Set by driver 632 * - Set by system core 633 * - Set by user 634 * - Set bt Country IE 635 */ 636 static void mwifiex_reg_notifier(struct wiphy *wiphy, 637 struct regulatory_request *request) 638 { 639 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 640 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 641 MWIFIEX_BSS_ROLE_ANY); 642 mwifiex_dbg(adapter, INFO, 643 "info: cfg80211 regulatory domain callback for %c%c\n", 644 request->alpha2[0], request->alpha2[1]); 645 mwifiex_reg_apply_radar_flags(wiphy); 646 647 switch (request->initiator) { 648 case NL80211_REGDOM_SET_BY_DRIVER: 649 case NL80211_REGDOM_SET_BY_CORE: 650 case NL80211_REGDOM_SET_BY_USER: 651 case NL80211_REGDOM_SET_BY_COUNTRY_IE: 652 break; 653 default: 654 mwifiex_dbg(adapter, ERROR, 655 "unknown regdom initiator: %d\n", 656 request->initiator); 657 return; 658 } 659 660 /* Don't send world or same regdom info to firmware */ 661 if (strncmp(request->alpha2, "00", 2) && 662 strncmp(request->alpha2, adapter->country_code, 663 sizeof(request->alpha2))) { 664 memcpy(adapter->country_code, request->alpha2, 665 sizeof(request->alpha2)); 666 mwifiex_send_domain_info_cmd_fw(wiphy); 667 mwifiex_dnld_txpwr_table(priv); 668 } 669 } 670 671 /* 672 * This function sets the fragmentation threshold. 673 * 674 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE 675 * and MWIFIEX_FRAG_MAX_VALUE. 676 */ 677 static int 678 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr) 679 { 680 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE || 681 frag_thr > MWIFIEX_FRAG_MAX_VALUE) 682 frag_thr = MWIFIEX_FRAG_MAX_VALUE; 683 684 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 685 HostCmd_ACT_GEN_SET, FRAG_THRESH_I, 686 &frag_thr, true); 687 } 688 689 /* 690 * This function sets the RTS threshold. 691 692 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE 693 * and MWIFIEX_RTS_MAX_VALUE. 694 */ 695 static int 696 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr) 697 { 698 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE) 699 rts_thr = MWIFIEX_RTS_MAX_VALUE; 700 701 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 702 HostCmd_ACT_GEN_SET, RTS_THRESH_I, 703 &rts_thr, true); 704 } 705 706 /* 707 * CFG802.11 operation handler to set wiphy parameters. 708 * 709 * This function can be used to set the RTS threshold and the 710 * Fragmentation threshold of the driver. 711 */ 712 static int 713 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 714 { 715 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 716 struct mwifiex_private *priv; 717 struct mwifiex_uap_bss_param *bss_cfg; 718 int ret; 719 720 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 721 722 switch (priv->bss_role) { 723 case MWIFIEX_BSS_ROLE_UAP: 724 if (priv->bss_started) { 725 mwifiex_dbg(adapter, ERROR, 726 "cannot change wiphy params when bss started"); 727 return -EINVAL; 728 } 729 730 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL); 731 if (!bss_cfg) 732 return -ENOMEM; 733 734 mwifiex_set_sys_config_invalid_data(bss_cfg); 735 736 if (changed & WIPHY_PARAM_RTS_THRESHOLD) 737 bss_cfg->rts_threshold = wiphy->rts_threshold; 738 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) 739 bss_cfg->frag_threshold = wiphy->frag_threshold; 740 if (changed & WIPHY_PARAM_RETRY_LONG) 741 bss_cfg->retry_limit = wiphy->retry_long; 742 743 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG, 744 HostCmd_ACT_GEN_SET, 745 UAP_BSS_PARAMS_I, bss_cfg, 746 false); 747 748 kfree(bss_cfg); 749 if (ret) { 750 mwifiex_dbg(adapter, ERROR, 751 "Failed to set wiphy phy params\n"); 752 return ret; 753 } 754 break; 755 756 case MWIFIEX_BSS_ROLE_STA: 757 if (priv->media_connected) { 758 mwifiex_dbg(adapter, ERROR, 759 "cannot change wiphy params when connected"); 760 return -EINVAL; 761 } 762 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 763 ret = mwifiex_set_rts(priv, 764 wiphy->rts_threshold); 765 if (ret) 766 return ret; 767 } 768 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 769 ret = mwifiex_set_frag(priv, 770 wiphy->frag_threshold); 771 if (ret) 772 return ret; 773 } 774 break; 775 } 776 777 return 0; 778 } 779 780 static int 781 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv) 782 { 783 u16 mode = P2P_MODE_DISABLE; 784 785 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, 786 HostCmd_ACT_GEN_SET, 0, &mode, true)) 787 return -1; 788 789 return 0; 790 } 791 792 /* 793 * This function initializes the functionalities for P2P client. 794 * The P2P client initialization sequence is: 795 * disable -> device -> client 796 */ 797 static int 798 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv) 799 { 800 u16 mode; 801 802 if (mwifiex_cfg80211_deinit_p2p(priv)) 803 return -1; 804 805 mode = P2P_MODE_DEVICE; 806 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, 807 HostCmd_ACT_GEN_SET, 0, &mode, true)) 808 return -1; 809 810 mode = P2P_MODE_CLIENT; 811 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, 812 HostCmd_ACT_GEN_SET, 0, &mode, true)) 813 return -1; 814 815 return 0; 816 } 817 818 /* 819 * This function initializes the functionalities for P2P GO. 820 * The P2P GO initialization sequence is: 821 * disable -> device -> GO 822 */ 823 static int 824 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv) 825 { 826 u16 mode; 827 828 if (mwifiex_cfg80211_deinit_p2p(priv)) 829 return -1; 830 831 mode = P2P_MODE_DEVICE; 832 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, 833 HostCmd_ACT_GEN_SET, 0, &mode, true)) 834 return -1; 835 836 mode = P2P_MODE_GO; 837 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, 838 HostCmd_ACT_GEN_SET, 0, &mode, true)) 839 return -1; 840 841 return 0; 842 } 843 844 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv) 845 { 846 struct mwifiex_adapter *adapter = priv->adapter; 847 unsigned long flags; 848 849 priv->mgmt_frame_mask = 0; 850 if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG, 851 HostCmd_ACT_GEN_SET, 0, 852 &priv->mgmt_frame_mask, false)) { 853 mwifiex_dbg(adapter, ERROR, 854 "could not unregister mgmt frame rx\n"); 855 return -1; 856 } 857 858 mwifiex_deauthenticate(priv, NULL); 859 860 spin_lock_irqsave(&adapter->main_proc_lock, flags); 861 adapter->main_locked = true; 862 if (adapter->mwifiex_processing) { 863 spin_unlock_irqrestore(&adapter->main_proc_lock, flags); 864 flush_workqueue(adapter->workqueue); 865 } else { 866 spin_unlock_irqrestore(&adapter->main_proc_lock, flags); 867 } 868 869 spin_lock_bh(&adapter->rx_proc_lock); 870 adapter->rx_locked = true; 871 if (adapter->rx_processing) { 872 spin_unlock_bh(&adapter->rx_proc_lock); 873 flush_workqueue(adapter->rx_workqueue); 874 } else { 875 spin_unlock_bh(&adapter->rx_proc_lock); 876 } 877 878 mwifiex_free_priv(priv); 879 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 880 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; 881 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM; 882 883 return 0; 884 } 885 886 static int 887 mwifiex_init_new_priv_params(struct mwifiex_private *priv, 888 struct net_device *dev, 889 enum nl80211_iftype type) 890 { 891 struct mwifiex_adapter *adapter = priv->adapter; 892 unsigned long flags; 893 894 mwifiex_init_priv(priv); 895 896 priv->bss_mode = type; 897 priv->wdev.iftype = type; 898 899 mwifiex_init_priv_params(priv, priv->netdev); 900 priv->bss_started = 0; 901 902 switch (type) { 903 case NL80211_IFTYPE_STATION: 904 case NL80211_IFTYPE_ADHOC: 905 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 906 priv->bss_type = MWIFIEX_BSS_TYPE_STA; 907 break; 908 case NL80211_IFTYPE_P2P_CLIENT: 909 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 910 priv->bss_type = MWIFIEX_BSS_TYPE_P2P; 911 break; 912 case NL80211_IFTYPE_P2P_GO: 913 priv->bss_role = MWIFIEX_BSS_ROLE_UAP; 914 priv->bss_type = MWIFIEX_BSS_TYPE_P2P; 915 break; 916 case NL80211_IFTYPE_AP: 917 priv->bss_role = MWIFIEX_BSS_ROLE_UAP; 918 priv->bss_type = MWIFIEX_BSS_TYPE_UAP; 919 break; 920 default: 921 mwifiex_dbg(adapter, ERROR, 922 "%s: changing to %d not supported\n", 923 dev->name, type); 924 return -EOPNOTSUPP; 925 } 926 927 spin_lock_irqsave(&adapter->main_proc_lock, flags); 928 adapter->main_locked = false; 929 spin_unlock_irqrestore(&adapter->main_proc_lock, flags); 930 931 spin_lock_bh(&adapter->rx_proc_lock); 932 adapter->rx_locked = false; 933 spin_unlock_bh(&adapter->rx_proc_lock); 934 935 mwifiex_set_mac_address(priv, dev, false, NULL); 936 937 return 0; 938 } 939 940 static bool 941 is_vif_type_change_allowed(struct mwifiex_adapter *adapter, 942 enum nl80211_iftype old_iftype, 943 enum nl80211_iftype new_iftype) 944 { 945 switch (old_iftype) { 946 case NL80211_IFTYPE_ADHOC: 947 switch (new_iftype) { 948 case NL80211_IFTYPE_STATION: 949 return true; 950 case NL80211_IFTYPE_P2P_CLIENT: 951 case NL80211_IFTYPE_P2P_GO: 952 return adapter->curr_iface_comb.p2p_intf != 953 adapter->iface_limit.p2p_intf; 954 case NL80211_IFTYPE_AP: 955 return adapter->curr_iface_comb.uap_intf != 956 adapter->iface_limit.uap_intf; 957 default: 958 return false; 959 } 960 961 case NL80211_IFTYPE_STATION: 962 switch (new_iftype) { 963 case NL80211_IFTYPE_ADHOC: 964 return true; 965 case NL80211_IFTYPE_P2P_CLIENT: 966 case NL80211_IFTYPE_P2P_GO: 967 return adapter->curr_iface_comb.p2p_intf != 968 adapter->iface_limit.p2p_intf; 969 case NL80211_IFTYPE_AP: 970 return adapter->curr_iface_comb.uap_intf != 971 adapter->iface_limit.uap_intf; 972 default: 973 return false; 974 } 975 976 case NL80211_IFTYPE_AP: 977 switch (new_iftype) { 978 case NL80211_IFTYPE_ADHOC: 979 case NL80211_IFTYPE_STATION: 980 return adapter->curr_iface_comb.sta_intf != 981 adapter->iface_limit.sta_intf; 982 case NL80211_IFTYPE_P2P_CLIENT: 983 case NL80211_IFTYPE_P2P_GO: 984 return adapter->curr_iface_comb.p2p_intf != 985 adapter->iface_limit.p2p_intf; 986 default: 987 return false; 988 } 989 990 case NL80211_IFTYPE_P2P_CLIENT: 991 switch (new_iftype) { 992 case NL80211_IFTYPE_ADHOC: 993 case NL80211_IFTYPE_STATION: 994 return true; 995 case NL80211_IFTYPE_P2P_GO: 996 return true; 997 case NL80211_IFTYPE_AP: 998 return adapter->curr_iface_comb.uap_intf != 999 adapter->iface_limit.uap_intf; 1000 default: 1001 return false; 1002 } 1003 1004 case NL80211_IFTYPE_P2P_GO: 1005 switch (new_iftype) { 1006 case NL80211_IFTYPE_ADHOC: 1007 case NL80211_IFTYPE_STATION: 1008 return true; 1009 case NL80211_IFTYPE_P2P_CLIENT: 1010 return true; 1011 case NL80211_IFTYPE_AP: 1012 return adapter->curr_iface_comb.uap_intf != 1013 adapter->iface_limit.uap_intf; 1014 default: 1015 return false; 1016 } 1017 1018 default: 1019 break; 1020 } 1021 1022 return false; 1023 } 1024 1025 static void 1026 update_vif_type_counter(struct mwifiex_adapter *adapter, 1027 enum nl80211_iftype iftype, 1028 int change) 1029 { 1030 switch (iftype) { 1031 case NL80211_IFTYPE_UNSPECIFIED: 1032 case NL80211_IFTYPE_ADHOC: 1033 case NL80211_IFTYPE_STATION: 1034 adapter->curr_iface_comb.sta_intf += change; 1035 break; 1036 case NL80211_IFTYPE_AP: 1037 adapter->curr_iface_comb.uap_intf += change; 1038 break; 1039 case NL80211_IFTYPE_P2P_CLIENT: 1040 case NL80211_IFTYPE_P2P_GO: 1041 adapter->curr_iface_comb.p2p_intf += change; 1042 break; 1043 default: 1044 mwifiex_dbg(adapter, ERROR, 1045 "%s: Unsupported iftype passed: %d\n", 1046 __func__, iftype); 1047 break; 1048 } 1049 } 1050 1051 static int 1052 mwifiex_change_vif_to_p2p(struct net_device *dev, 1053 enum nl80211_iftype curr_iftype, 1054 enum nl80211_iftype type, 1055 struct vif_params *params) 1056 { 1057 struct mwifiex_private *priv; 1058 struct mwifiex_adapter *adapter; 1059 1060 priv = mwifiex_netdev_get_priv(dev); 1061 1062 if (!priv) 1063 return -1; 1064 1065 adapter = priv->adapter; 1066 1067 mwifiex_dbg(adapter, INFO, 1068 "%s: changing role to p2p\n", dev->name); 1069 1070 if (mwifiex_deinit_priv_params(priv)) 1071 return -1; 1072 if (mwifiex_init_new_priv_params(priv, dev, type)) 1073 return -1; 1074 1075 update_vif_type_counter(adapter, curr_iftype, -1); 1076 update_vif_type_counter(adapter, type, +1); 1077 dev->ieee80211_ptr->iftype = type; 1078 1079 switch (type) { 1080 case NL80211_IFTYPE_P2P_CLIENT: 1081 if (mwifiex_cfg80211_init_p2p_client(priv)) 1082 return -EFAULT; 1083 break; 1084 case NL80211_IFTYPE_P2P_GO: 1085 if (mwifiex_cfg80211_init_p2p_go(priv)) 1086 return -EFAULT; 1087 break; 1088 default: 1089 mwifiex_dbg(adapter, ERROR, 1090 "%s: changing to %d not supported\n", 1091 dev->name, type); 1092 return -EOPNOTSUPP; 1093 } 1094 1095 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1096 HostCmd_ACT_GEN_SET, 0, NULL, true)) 1097 return -1; 1098 1099 if (mwifiex_sta_init_cmd(priv, false, false)) 1100 return -1; 1101 1102 return 0; 1103 } 1104 1105 static int 1106 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev, 1107 enum nl80211_iftype curr_iftype, 1108 enum nl80211_iftype type, 1109 struct vif_params *params) 1110 { 1111 struct mwifiex_private *priv; 1112 struct mwifiex_adapter *adapter; 1113 1114 priv = mwifiex_netdev_get_priv(dev); 1115 1116 if (!priv) 1117 return -1; 1118 1119 adapter = priv->adapter; 1120 1121 if (type == NL80211_IFTYPE_STATION) 1122 mwifiex_dbg(adapter, INFO, 1123 "%s: changing role to station\n", dev->name); 1124 else 1125 mwifiex_dbg(adapter, INFO, 1126 "%s: changing role to adhoc\n", dev->name); 1127 1128 if (mwifiex_deinit_priv_params(priv)) 1129 return -1; 1130 if (mwifiex_init_new_priv_params(priv, dev, type)) 1131 return -1; 1132 1133 update_vif_type_counter(adapter, curr_iftype, -1); 1134 update_vif_type_counter(adapter, type, +1); 1135 dev->ieee80211_ptr->iftype = type; 1136 1137 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1138 HostCmd_ACT_GEN_SET, 0, NULL, true)) 1139 return -1; 1140 if (mwifiex_sta_init_cmd(priv, false, false)) 1141 return -1; 1142 1143 return 0; 1144 } 1145 1146 static int 1147 mwifiex_change_vif_to_ap(struct net_device *dev, 1148 enum nl80211_iftype curr_iftype, 1149 enum nl80211_iftype type, 1150 struct vif_params *params) 1151 { 1152 struct mwifiex_private *priv; 1153 struct mwifiex_adapter *adapter; 1154 1155 priv = mwifiex_netdev_get_priv(dev); 1156 1157 if (!priv) 1158 return -1; 1159 1160 adapter = priv->adapter; 1161 1162 mwifiex_dbg(adapter, INFO, 1163 "%s: changing role to AP\n", dev->name); 1164 1165 if (mwifiex_deinit_priv_params(priv)) 1166 return -1; 1167 if (mwifiex_init_new_priv_params(priv, dev, type)) 1168 return -1; 1169 1170 update_vif_type_counter(adapter, curr_iftype, -1); 1171 update_vif_type_counter(adapter, type, +1); 1172 dev->ieee80211_ptr->iftype = type; 1173 1174 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1175 HostCmd_ACT_GEN_SET, 0, NULL, true)) 1176 return -1; 1177 if (mwifiex_sta_init_cmd(priv, false, false)) 1178 return -1; 1179 1180 return 0; 1181 } 1182 /* 1183 * CFG802.11 operation handler to change interface type. 1184 */ 1185 static int 1186 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy, 1187 struct net_device *dev, 1188 enum nl80211_iftype type, 1189 struct vif_params *params) 1190 { 1191 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1192 enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype; 1193 1194 if (priv->scan_request) { 1195 mwifiex_dbg(priv->adapter, ERROR, 1196 "change virtual interface: scan in process\n"); 1197 return -EBUSY; 1198 } 1199 1200 if (type == NL80211_IFTYPE_UNSPECIFIED) { 1201 mwifiex_dbg(priv->adapter, INFO, 1202 "%s: no new type specified, keeping old type %d\n", 1203 dev->name, curr_iftype); 1204 return 0; 1205 } 1206 1207 if (curr_iftype == type) { 1208 mwifiex_dbg(priv->adapter, INFO, 1209 "%s: interface already is of type %d\n", 1210 dev->name, curr_iftype); 1211 return 0; 1212 } 1213 1214 if (!is_vif_type_change_allowed(priv->adapter, curr_iftype, type)) { 1215 mwifiex_dbg(priv->adapter, ERROR, 1216 "%s: change from type %d to %d is not allowed\n", 1217 dev->name, curr_iftype, type); 1218 return -EOPNOTSUPP; 1219 } 1220 1221 switch (curr_iftype) { 1222 case NL80211_IFTYPE_ADHOC: 1223 switch (type) { 1224 case NL80211_IFTYPE_STATION: 1225 priv->bss_mode = type; 1226 priv->sec_info.authentication_mode = 1227 NL80211_AUTHTYPE_OPEN_SYSTEM; 1228 dev->ieee80211_ptr->iftype = type; 1229 mwifiex_deauthenticate(priv, NULL); 1230 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1231 HostCmd_ACT_GEN_SET, 0, NULL, 1232 true); 1233 case NL80211_IFTYPE_P2P_CLIENT: 1234 case NL80211_IFTYPE_P2P_GO: 1235 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1236 type, params); 1237 case NL80211_IFTYPE_AP: 1238 return mwifiex_change_vif_to_ap(dev, curr_iftype, type, 1239 params); 1240 default: 1241 goto errnotsupp; 1242 } 1243 1244 case NL80211_IFTYPE_STATION: 1245 switch (type) { 1246 case NL80211_IFTYPE_ADHOC: 1247 priv->bss_mode = type; 1248 priv->sec_info.authentication_mode = 1249 NL80211_AUTHTYPE_OPEN_SYSTEM; 1250 dev->ieee80211_ptr->iftype = type; 1251 mwifiex_deauthenticate(priv, NULL); 1252 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1253 HostCmd_ACT_GEN_SET, 0, NULL, 1254 true); 1255 case NL80211_IFTYPE_P2P_CLIENT: 1256 case NL80211_IFTYPE_P2P_GO: 1257 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1258 type, params); 1259 case NL80211_IFTYPE_AP: 1260 return mwifiex_change_vif_to_ap(dev, curr_iftype, type, 1261 params); 1262 default: 1263 goto errnotsupp; 1264 } 1265 1266 case NL80211_IFTYPE_AP: 1267 switch (type) { 1268 case NL80211_IFTYPE_ADHOC: 1269 case NL80211_IFTYPE_STATION: 1270 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype, 1271 type, params); 1272 break; 1273 case NL80211_IFTYPE_P2P_CLIENT: 1274 case NL80211_IFTYPE_P2P_GO: 1275 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1276 type, params); 1277 default: 1278 goto errnotsupp; 1279 } 1280 1281 case NL80211_IFTYPE_P2P_CLIENT: 1282 if (mwifiex_cfg80211_deinit_p2p(priv)) 1283 return -EFAULT; 1284 1285 switch (type) { 1286 case NL80211_IFTYPE_ADHOC: 1287 case NL80211_IFTYPE_STATION: 1288 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype, 1289 type, params); 1290 case NL80211_IFTYPE_P2P_GO: 1291 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1292 type, params); 1293 case NL80211_IFTYPE_AP: 1294 return mwifiex_change_vif_to_ap(dev, curr_iftype, type, 1295 params); 1296 default: 1297 goto errnotsupp; 1298 } 1299 1300 case NL80211_IFTYPE_P2P_GO: 1301 if (mwifiex_cfg80211_deinit_p2p(priv)) 1302 return -EFAULT; 1303 1304 switch (type) { 1305 case NL80211_IFTYPE_ADHOC: 1306 case NL80211_IFTYPE_STATION: 1307 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype, 1308 type, params); 1309 case NL80211_IFTYPE_P2P_CLIENT: 1310 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1311 type, params); 1312 case NL80211_IFTYPE_AP: 1313 return mwifiex_change_vif_to_ap(dev, curr_iftype, type, 1314 params); 1315 default: 1316 goto errnotsupp; 1317 } 1318 1319 default: 1320 goto errnotsupp; 1321 } 1322 1323 1324 return 0; 1325 1326 errnotsupp: 1327 mwifiex_dbg(priv->adapter, ERROR, 1328 "unsupported interface type transition: %d to %d\n", 1329 curr_iftype, type); 1330 return -EOPNOTSUPP; 1331 } 1332 1333 static void 1334 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 rateinfo, u8 htinfo, 1335 struct rate_info *rate) 1336 { 1337 struct mwifiex_adapter *adapter = priv->adapter; 1338 1339 if (adapter->is_hw_11ac_capable) { 1340 /* bit[1-0]: 00=LG 01=HT 10=VHT */ 1341 if (htinfo & BIT(0)) { 1342 /* HT */ 1343 rate->mcs = rateinfo; 1344 rate->flags |= RATE_INFO_FLAGS_MCS; 1345 } 1346 if (htinfo & BIT(1)) { 1347 /* VHT */ 1348 rate->mcs = rateinfo & 0x0F; 1349 rate->flags |= RATE_INFO_FLAGS_VHT_MCS; 1350 } 1351 1352 if (htinfo & (BIT(1) | BIT(0))) { 1353 /* HT or VHT */ 1354 switch (htinfo & (BIT(3) | BIT(2))) { 1355 case 0: 1356 rate->bw = RATE_INFO_BW_20; 1357 break; 1358 case (BIT(2)): 1359 rate->bw = RATE_INFO_BW_40; 1360 break; 1361 case (BIT(3)): 1362 rate->bw = RATE_INFO_BW_80; 1363 break; 1364 case (BIT(3) | BIT(2)): 1365 rate->bw = RATE_INFO_BW_160; 1366 break; 1367 } 1368 1369 if (htinfo & BIT(4)) 1370 rate->flags |= RATE_INFO_FLAGS_SHORT_GI; 1371 1372 if ((rateinfo >> 4) == 1) 1373 rate->nss = 2; 1374 else 1375 rate->nss = 1; 1376 } 1377 } else { 1378 /* 1379 * Bit 0 in htinfo indicates that current rate is 11n. Valid 1380 * MCS index values for us are 0 to 15. 1381 */ 1382 if ((htinfo & BIT(0)) && (rateinfo < 16)) { 1383 rate->mcs = rateinfo; 1384 rate->flags |= RATE_INFO_FLAGS_MCS; 1385 rate->bw = RATE_INFO_BW_20; 1386 if (htinfo & BIT(1)) 1387 rate->bw = RATE_INFO_BW_40; 1388 if (htinfo & BIT(2)) 1389 rate->flags |= RATE_INFO_FLAGS_SHORT_GI; 1390 } 1391 } 1392 1393 /* Decode legacy rates for non-HT. */ 1394 if (!(htinfo & (BIT(0) | BIT(1)))) { 1395 /* Bitrates in multiples of 100kb/s. */ 1396 static const int legacy_rates[] = { 1397 [0] = 10, 1398 [1] = 20, 1399 [2] = 55, 1400 [3] = 110, 1401 [4] = 60, /* MWIFIEX_RATE_INDEX_OFDM0 */ 1402 [5] = 60, 1403 [6] = 90, 1404 [7] = 120, 1405 [8] = 180, 1406 [9] = 240, 1407 [10] = 360, 1408 [11] = 480, 1409 [12] = 540, 1410 }; 1411 if (rateinfo < ARRAY_SIZE(legacy_rates)) 1412 rate->legacy = legacy_rates[rateinfo]; 1413 } 1414 } 1415 1416 /* 1417 * This function dumps the station information on a buffer. 1418 * 1419 * The following information are shown - 1420 * - Total bytes transmitted 1421 * - Total bytes received 1422 * - Total packets transmitted 1423 * - Total packets received 1424 * - Signal quality level 1425 * - Transmission rate 1426 */ 1427 static int 1428 mwifiex_dump_station_info(struct mwifiex_private *priv, 1429 struct mwifiex_sta_node *node, 1430 struct station_info *sinfo) 1431 { 1432 u32 rate; 1433 1434 sinfo->filled = BIT_ULL(NL80211_STA_INFO_RX_BYTES) | BIT_ULL(NL80211_STA_INFO_TX_BYTES) | 1435 BIT_ULL(NL80211_STA_INFO_RX_PACKETS) | BIT_ULL(NL80211_STA_INFO_TX_PACKETS) | 1436 BIT_ULL(NL80211_STA_INFO_TX_BITRATE) | 1437 BIT_ULL(NL80211_STA_INFO_SIGNAL) | BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 1438 1439 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { 1440 if (!node) 1441 return -ENOENT; 1442 1443 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME) | 1444 BIT_ULL(NL80211_STA_INFO_TX_FAILED); 1445 sinfo->inactive_time = 1446 jiffies_to_msecs(jiffies - node->stats.last_rx); 1447 1448 sinfo->signal = node->stats.rssi; 1449 sinfo->signal_avg = node->stats.rssi; 1450 sinfo->rx_bytes = node->stats.rx_bytes; 1451 sinfo->tx_bytes = node->stats.tx_bytes; 1452 sinfo->rx_packets = node->stats.rx_packets; 1453 sinfo->tx_packets = node->stats.tx_packets; 1454 sinfo->tx_failed = node->stats.tx_failed; 1455 1456 mwifiex_parse_htinfo(priv, priv->tx_rate, 1457 node->stats.last_tx_htinfo, 1458 &sinfo->txrate); 1459 sinfo->txrate.legacy = node->stats.last_tx_rate * 5; 1460 1461 return 0; 1462 } 1463 1464 /* Get signal information from the firmware */ 1465 if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO, 1466 HostCmd_ACT_GEN_GET, 0, NULL, true)) { 1467 mwifiex_dbg(priv->adapter, ERROR, 1468 "failed to get signal information\n"); 1469 return -EFAULT; 1470 } 1471 1472 if (mwifiex_drv_get_data_rate(priv, &rate)) { 1473 mwifiex_dbg(priv->adapter, ERROR, 1474 "getting data rate error\n"); 1475 return -EFAULT; 1476 } 1477 1478 /* Get DTIM period information from firmware */ 1479 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 1480 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I, 1481 &priv->dtim_period, true); 1482 1483 mwifiex_parse_htinfo(priv, priv->tx_rate, priv->tx_htinfo, 1484 &sinfo->txrate); 1485 1486 sinfo->signal_avg = priv->bcn_rssi_avg; 1487 sinfo->rx_bytes = priv->stats.rx_bytes; 1488 sinfo->tx_bytes = priv->stats.tx_bytes; 1489 sinfo->rx_packets = priv->stats.rx_packets; 1490 sinfo->tx_packets = priv->stats.tx_packets; 1491 sinfo->signal = priv->bcn_rssi_avg; 1492 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */ 1493 sinfo->txrate.legacy = rate * 5; 1494 1495 sinfo->filled |= BIT(NL80211_STA_INFO_RX_BITRATE); 1496 mwifiex_parse_htinfo(priv, priv->rxpd_rate, priv->rxpd_htinfo, 1497 &sinfo->rxrate); 1498 1499 if (priv->bss_mode == NL80211_IFTYPE_STATION) { 1500 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BSS_PARAM); 1501 sinfo->bss_param.flags = 0; 1502 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap & 1503 WLAN_CAPABILITY_SHORT_PREAMBLE) 1504 sinfo->bss_param.flags |= 1505 BSS_PARAM_FLAGS_SHORT_PREAMBLE; 1506 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap & 1507 WLAN_CAPABILITY_SHORT_SLOT_TIME) 1508 sinfo->bss_param.flags |= 1509 BSS_PARAM_FLAGS_SHORT_SLOT_TIME; 1510 sinfo->bss_param.dtim_period = priv->dtim_period; 1511 sinfo->bss_param.beacon_interval = 1512 priv->curr_bss_params.bss_descriptor.beacon_period; 1513 } 1514 1515 return 0; 1516 } 1517 1518 /* 1519 * CFG802.11 operation handler to get station information. 1520 * 1521 * This function only works in connected mode, and dumps the 1522 * requested station information, if available. 1523 */ 1524 static int 1525 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev, 1526 const u8 *mac, struct station_info *sinfo) 1527 { 1528 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1529 1530 if (!priv->media_connected) 1531 return -ENOENT; 1532 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN)) 1533 return -ENOENT; 1534 1535 return mwifiex_dump_station_info(priv, NULL, sinfo); 1536 } 1537 1538 /* 1539 * CFG802.11 operation handler to dump station information. 1540 */ 1541 static int 1542 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 1543 int idx, u8 *mac, struct station_info *sinfo) 1544 { 1545 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1546 struct mwifiex_sta_node *node; 1547 int i; 1548 1549 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) && 1550 priv->media_connected && idx == 0) { 1551 ether_addr_copy(mac, priv->cfg_bssid); 1552 return mwifiex_dump_station_info(priv, NULL, sinfo); 1553 } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { 1554 mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST, 1555 HostCmd_ACT_GEN_GET, 0, NULL, true); 1556 1557 i = 0; 1558 list_for_each_entry(node, &priv->sta_list, list) { 1559 if (i++ != idx) 1560 continue; 1561 ether_addr_copy(mac, node->mac_addr); 1562 return mwifiex_dump_station_info(priv, node, sinfo); 1563 } 1564 } 1565 1566 return -ENOENT; 1567 } 1568 1569 static int 1570 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 1571 int idx, struct survey_info *survey) 1572 { 1573 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1574 struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats; 1575 enum nl80211_band band; 1576 1577 mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx); 1578 1579 memset(survey, 0, sizeof(struct survey_info)); 1580 1581 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) && 1582 priv->media_connected && idx == 0) { 1583 u8 curr_bss_band = priv->curr_bss_params.band; 1584 u32 chan = priv->curr_bss_params.bss_descriptor.channel; 1585 1586 band = mwifiex_band_to_radio_type(curr_bss_band); 1587 survey->channel = ieee80211_get_channel(wiphy, 1588 ieee80211_channel_to_frequency(chan, band)); 1589 1590 if (priv->bcn_nf_last) { 1591 survey->filled = SURVEY_INFO_NOISE_DBM; 1592 survey->noise = priv->bcn_nf_last; 1593 } 1594 return 0; 1595 } 1596 1597 if (idx >= priv->adapter->num_in_chan_stats) 1598 return -ENOENT; 1599 1600 if (!pchan_stats[idx].cca_scan_dur) 1601 return 0; 1602 1603 band = pchan_stats[idx].bandcfg; 1604 survey->channel = ieee80211_get_channel(wiphy, 1605 ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band)); 1606 survey->filled = SURVEY_INFO_NOISE_DBM | 1607 SURVEY_INFO_TIME | 1608 SURVEY_INFO_TIME_BUSY; 1609 survey->noise = pchan_stats[idx].noise; 1610 survey->time = pchan_stats[idx].cca_scan_dur; 1611 survey->time_busy = pchan_stats[idx].cca_busy_dur; 1612 1613 return 0; 1614 } 1615 1616 /* Supported rates to be advertised to the cfg80211 */ 1617 static struct ieee80211_rate mwifiex_rates[] = { 1618 {.bitrate = 10, .hw_value = 2, }, 1619 {.bitrate = 20, .hw_value = 4, }, 1620 {.bitrate = 55, .hw_value = 11, }, 1621 {.bitrate = 110, .hw_value = 22, }, 1622 {.bitrate = 60, .hw_value = 12, }, 1623 {.bitrate = 90, .hw_value = 18, }, 1624 {.bitrate = 120, .hw_value = 24, }, 1625 {.bitrate = 180, .hw_value = 36, }, 1626 {.bitrate = 240, .hw_value = 48, }, 1627 {.bitrate = 360, .hw_value = 72, }, 1628 {.bitrate = 480, .hw_value = 96, }, 1629 {.bitrate = 540, .hw_value = 108, }, 1630 }; 1631 1632 /* Channel definitions to be advertised to cfg80211 */ 1633 static struct ieee80211_channel mwifiex_channels_2ghz[] = { 1634 {.center_freq = 2412, .hw_value = 1, }, 1635 {.center_freq = 2417, .hw_value = 2, }, 1636 {.center_freq = 2422, .hw_value = 3, }, 1637 {.center_freq = 2427, .hw_value = 4, }, 1638 {.center_freq = 2432, .hw_value = 5, }, 1639 {.center_freq = 2437, .hw_value = 6, }, 1640 {.center_freq = 2442, .hw_value = 7, }, 1641 {.center_freq = 2447, .hw_value = 8, }, 1642 {.center_freq = 2452, .hw_value = 9, }, 1643 {.center_freq = 2457, .hw_value = 10, }, 1644 {.center_freq = 2462, .hw_value = 11, }, 1645 {.center_freq = 2467, .hw_value = 12, }, 1646 {.center_freq = 2472, .hw_value = 13, }, 1647 {.center_freq = 2484, .hw_value = 14, }, 1648 }; 1649 1650 static struct ieee80211_supported_band mwifiex_band_2ghz = { 1651 .channels = mwifiex_channels_2ghz, 1652 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz), 1653 .bitrates = mwifiex_rates, 1654 .n_bitrates = ARRAY_SIZE(mwifiex_rates), 1655 }; 1656 1657 static struct ieee80211_channel mwifiex_channels_5ghz[] = { 1658 {.center_freq = 5040, .hw_value = 8, }, 1659 {.center_freq = 5060, .hw_value = 12, }, 1660 {.center_freq = 5080, .hw_value = 16, }, 1661 {.center_freq = 5170, .hw_value = 34, }, 1662 {.center_freq = 5190, .hw_value = 38, }, 1663 {.center_freq = 5210, .hw_value = 42, }, 1664 {.center_freq = 5230, .hw_value = 46, }, 1665 {.center_freq = 5180, .hw_value = 36, }, 1666 {.center_freq = 5200, .hw_value = 40, }, 1667 {.center_freq = 5220, .hw_value = 44, }, 1668 {.center_freq = 5240, .hw_value = 48, }, 1669 {.center_freq = 5260, .hw_value = 52, }, 1670 {.center_freq = 5280, .hw_value = 56, }, 1671 {.center_freq = 5300, .hw_value = 60, }, 1672 {.center_freq = 5320, .hw_value = 64, }, 1673 {.center_freq = 5500, .hw_value = 100, }, 1674 {.center_freq = 5520, .hw_value = 104, }, 1675 {.center_freq = 5540, .hw_value = 108, }, 1676 {.center_freq = 5560, .hw_value = 112, }, 1677 {.center_freq = 5580, .hw_value = 116, }, 1678 {.center_freq = 5600, .hw_value = 120, }, 1679 {.center_freq = 5620, .hw_value = 124, }, 1680 {.center_freq = 5640, .hw_value = 128, }, 1681 {.center_freq = 5660, .hw_value = 132, }, 1682 {.center_freq = 5680, .hw_value = 136, }, 1683 {.center_freq = 5700, .hw_value = 140, }, 1684 {.center_freq = 5745, .hw_value = 149, }, 1685 {.center_freq = 5765, .hw_value = 153, }, 1686 {.center_freq = 5785, .hw_value = 157, }, 1687 {.center_freq = 5805, .hw_value = 161, }, 1688 {.center_freq = 5825, .hw_value = 165, }, 1689 }; 1690 1691 static struct ieee80211_supported_band mwifiex_band_5ghz = { 1692 .channels = mwifiex_channels_5ghz, 1693 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz), 1694 .bitrates = mwifiex_rates + 4, 1695 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4, 1696 }; 1697 1698 1699 /* Supported crypto cipher suits to be advertised to cfg80211 */ 1700 static const u32 mwifiex_cipher_suites[] = { 1701 WLAN_CIPHER_SUITE_WEP40, 1702 WLAN_CIPHER_SUITE_WEP104, 1703 WLAN_CIPHER_SUITE_TKIP, 1704 WLAN_CIPHER_SUITE_CCMP, 1705 WLAN_CIPHER_SUITE_SMS4, 1706 WLAN_CIPHER_SUITE_AES_CMAC, 1707 }; 1708 1709 /* Supported mgmt frame types to be advertised to cfg80211 */ 1710 static const struct ieee80211_txrx_stypes 1711 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = { 1712 [NL80211_IFTYPE_STATION] = { 1713 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1714 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 1715 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1716 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 1717 }, 1718 [NL80211_IFTYPE_AP] = { 1719 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1720 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 1721 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1722 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 1723 }, 1724 [NL80211_IFTYPE_P2P_CLIENT] = { 1725 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1726 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 1727 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1728 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 1729 }, 1730 [NL80211_IFTYPE_P2P_GO] = { 1731 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1732 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 1733 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1734 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 1735 }, 1736 }; 1737 1738 /* 1739 * CFG802.11 operation handler for setting bit rates. 1740 * 1741 * Function configures data rates to firmware using bitrate mask 1742 * provided by cfg80211. 1743 */ 1744 static int 1745 mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy, 1746 struct net_device *dev, 1747 unsigned int link_id, 1748 const u8 *peer, 1749 const struct cfg80211_bitrate_mask *mask) 1750 { 1751 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1752 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE]; 1753 enum nl80211_band band; 1754 struct mwifiex_adapter *adapter = priv->adapter; 1755 1756 if (!priv->media_connected) { 1757 mwifiex_dbg(adapter, ERROR, 1758 "Can not set Tx data rate in disconnected state\n"); 1759 return -EINVAL; 1760 } 1761 1762 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 1763 1764 memset(bitmap_rates, 0, sizeof(bitmap_rates)); 1765 1766 /* Fill HR/DSSS rates. */ 1767 if (band == NL80211_BAND_2GHZ) 1768 bitmap_rates[0] = mask->control[band].legacy & 0x000f; 1769 1770 /* Fill OFDM rates */ 1771 if (band == NL80211_BAND_2GHZ) 1772 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4; 1773 else 1774 bitmap_rates[1] = mask->control[band].legacy; 1775 1776 /* Fill HT MCS rates */ 1777 bitmap_rates[2] = mask->control[band].ht_mcs[0]; 1778 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2) 1779 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8; 1780 1781 /* Fill VHT MCS rates */ 1782 if (adapter->fw_api_ver == MWIFIEX_FW_V15) { 1783 bitmap_rates[10] = mask->control[band].vht_mcs[0]; 1784 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2) 1785 bitmap_rates[11] = mask->control[band].vht_mcs[1]; 1786 } 1787 1788 return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG, 1789 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true); 1790 } 1791 1792 /* 1793 * CFG802.11 operation handler for connection quality monitoring. 1794 * 1795 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI 1796 * events to FW. 1797 */ 1798 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy, 1799 struct net_device *dev, 1800 s32 rssi_thold, u32 rssi_hyst) 1801 { 1802 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1803 struct mwifiex_ds_misc_subsc_evt subsc_evt; 1804 1805 priv->cqm_rssi_thold = rssi_thold; 1806 priv->cqm_rssi_hyst = rssi_hyst; 1807 1808 memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt)); 1809 subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH; 1810 1811 /* Subscribe/unsubscribe low and high rssi events */ 1812 if (rssi_thold && rssi_hyst) { 1813 subsc_evt.action = HostCmd_ACT_BITWISE_SET; 1814 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold); 1815 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold); 1816 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1; 1817 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1; 1818 return mwifiex_send_cmd(priv, 1819 HostCmd_CMD_802_11_SUBSCRIBE_EVENT, 1820 0, 0, &subsc_evt, true); 1821 } else { 1822 subsc_evt.action = HostCmd_ACT_BITWISE_CLR; 1823 return mwifiex_send_cmd(priv, 1824 HostCmd_CMD_802_11_SUBSCRIBE_EVENT, 1825 0, 0, &subsc_evt, true); 1826 } 1827 1828 return 0; 1829 } 1830 1831 /* cfg80211 operation handler for change_beacon. 1832 * Function retrieves and sets modified management IEs to FW. 1833 */ 1834 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy, 1835 struct net_device *dev, 1836 struct cfg80211_beacon_data *data) 1837 { 1838 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1839 struct mwifiex_adapter *adapter = priv->adapter; 1840 1841 mwifiex_cancel_scan(adapter); 1842 1843 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) { 1844 mwifiex_dbg(priv->adapter, ERROR, 1845 "%s: bss_type mismatched\n", __func__); 1846 return -EINVAL; 1847 } 1848 1849 if (!priv->bss_started) { 1850 mwifiex_dbg(priv->adapter, ERROR, 1851 "%s: bss not started\n", __func__); 1852 return -EINVAL; 1853 } 1854 1855 if (mwifiex_set_mgmt_ies(priv, data)) { 1856 mwifiex_dbg(priv->adapter, ERROR, 1857 "%s: setting mgmt ies failed\n", __func__); 1858 return -EFAULT; 1859 } 1860 1861 return 0; 1862 } 1863 1864 /* cfg80211 operation handler for del_station. 1865 * Function deauthenticates station which value is provided in mac parameter. 1866 * If mac is NULL/broadcast, all stations in associated station list are 1867 * deauthenticated. If bss is not started or there are no stations in 1868 * associated stations list, no action is taken. 1869 */ 1870 static int 1871 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1872 struct station_del_parameters *params) 1873 { 1874 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1875 struct mwifiex_sta_node *sta_node; 1876 u8 deauth_mac[ETH_ALEN]; 1877 1878 if (!priv->bss_started && priv->wdev.cac_started) { 1879 mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__); 1880 mwifiex_abort_cac(priv); 1881 } 1882 1883 if (list_empty(&priv->sta_list) || !priv->bss_started) 1884 return 0; 1885 1886 if (!params->mac || is_broadcast_ether_addr(params->mac)) 1887 return 0; 1888 1889 mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n", 1890 __func__, params->mac); 1891 1892 eth_zero_addr(deauth_mac); 1893 1894 spin_lock_bh(&priv->sta_list_spinlock); 1895 sta_node = mwifiex_get_sta_entry(priv, params->mac); 1896 if (sta_node) 1897 ether_addr_copy(deauth_mac, params->mac); 1898 spin_unlock_bh(&priv->sta_list_spinlock); 1899 1900 if (is_valid_ether_addr(deauth_mac)) { 1901 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH, 1902 HostCmd_ACT_GEN_SET, 0, 1903 deauth_mac, true)) 1904 return -1; 1905 } 1906 1907 return 0; 1908 } 1909 1910 static int 1911 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 1912 { 1913 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 1914 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 1915 MWIFIEX_BSS_ROLE_ANY); 1916 struct mwifiex_ds_ant_cfg ant_cfg; 1917 1918 if (!tx_ant || !rx_ant) 1919 return -EOPNOTSUPP; 1920 1921 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) { 1922 /* Not a MIMO chip. User should provide specific antenna number 1923 * for Tx/Rx path or enable all antennas for diversity 1924 */ 1925 if (tx_ant != rx_ant) 1926 return -EOPNOTSUPP; 1927 1928 if ((tx_ant & (tx_ant - 1)) && 1929 (tx_ant != BIT(adapter->number_of_antenna) - 1)) 1930 return -EOPNOTSUPP; 1931 1932 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) && 1933 (priv->adapter->number_of_antenna > 1)) { 1934 tx_ant = RF_ANTENNA_AUTO; 1935 rx_ant = RF_ANTENNA_AUTO; 1936 } 1937 } else { 1938 struct ieee80211_sta_ht_cap *ht_info; 1939 int rx_mcs_supp; 1940 enum nl80211_band band; 1941 1942 if ((tx_ant == 0x1 && rx_ant == 0x1)) { 1943 adapter->user_dev_mcs_support = HT_STREAM_1X1; 1944 if (adapter->is_hw_11ac_capable) 1945 adapter->usr_dot_11ac_mcs_support = 1946 MWIFIEX_11AC_MCS_MAP_1X1; 1947 } else { 1948 adapter->user_dev_mcs_support = HT_STREAM_2X2; 1949 if (adapter->is_hw_11ac_capable) 1950 adapter->usr_dot_11ac_mcs_support = 1951 MWIFIEX_11AC_MCS_MAP_2X2; 1952 } 1953 1954 for (band = 0; band < NUM_NL80211_BANDS; band++) { 1955 if (!adapter->wiphy->bands[band]) 1956 continue; 1957 1958 ht_info = &adapter->wiphy->bands[band]->ht_cap; 1959 rx_mcs_supp = 1960 GET_RXMCSSUPP(adapter->user_dev_mcs_support); 1961 memset(&ht_info->mcs, 0, adapter->number_of_antenna); 1962 memset(&ht_info->mcs, 0xff, rx_mcs_supp); 1963 } 1964 } 1965 1966 ant_cfg.tx_ant = tx_ant; 1967 ant_cfg.rx_ant = rx_ant; 1968 1969 return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA, 1970 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true); 1971 } 1972 1973 static int 1974 mwifiex_cfg80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 1975 { 1976 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 1977 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 1978 MWIFIEX_BSS_ROLE_ANY); 1979 mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA, 1980 HostCmd_ACT_GEN_GET, 0, NULL, true); 1981 1982 *tx_ant = priv->tx_ant; 1983 *rx_ant = priv->rx_ant; 1984 1985 return 0; 1986 } 1987 1988 /* cfg80211 operation handler for stop ap. 1989 * Function stops BSS running at uAP interface. 1990 */ 1991 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 1992 unsigned int link_id) 1993 { 1994 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1995 1996 mwifiex_abort_cac(priv); 1997 1998 if (mwifiex_del_mgmt_ies(priv)) 1999 mwifiex_dbg(priv->adapter, ERROR, 2000 "Failed to delete mgmt IEs!\n"); 2001 2002 priv->ap_11n_enabled = 0; 2003 memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg)); 2004 2005 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP, 2006 HostCmd_ACT_GEN_SET, 0, NULL, true)) { 2007 mwifiex_dbg(priv->adapter, ERROR, 2008 "Failed to stop the BSS\n"); 2009 return -1; 2010 } 2011 2012 if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET, 2013 HostCmd_ACT_GEN_SET, 0, NULL, true)) { 2014 mwifiex_dbg(priv->adapter, ERROR, 2015 "Failed to reset BSS\n"); 2016 return -1; 2017 } 2018 2019 if (netif_carrier_ok(priv->netdev)) 2020 netif_carrier_off(priv->netdev); 2021 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter); 2022 2023 return 0; 2024 } 2025 2026 /* cfg80211 operation handler for start_ap. 2027 * Function sets beacon period, DTIM period, SSID and security into 2028 * AP config structure. 2029 * AP is configured with these settings and BSS is started. 2030 */ 2031 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy, 2032 struct net_device *dev, 2033 struct cfg80211_ap_settings *params) 2034 { 2035 struct mwifiex_uap_bss_param *bss_cfg; 2036 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2037 2038 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) 2039 return -1; 2040 2041 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL); 2042 if (!bss_cfg) 2043 return -ENOMEM; 2044 2045 mwifiex_set_sys_config_invalid_data(bss_cfg); 2046 2047 if (params->beacon_interval) 2048 bss_cfg->beacon_period = params->beacon_interval; 2049 if (params->dtim_period) 2050 bss_cfg->dtim_period = params->dtim_period; 2051 2052 if (params->ssid && params->ssid_len) { 2053 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len); 2054 bss_cfg->ssid.ssid_len = params->ssid_len; 2055 } 2056 if (params->inactivity_timeout > 0) { 2057 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */ 2058 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout; 2059 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout; 2060 } 2061 2062 switch (params->hidden_ssid) { 2063 case NL80211_HIDDEN_SSID_NOT_IN_USE: 2064 bss_cfg->bcast_ssid_ctl = 1; 2065 break; 2066 case NL80211_HIDDEN_SSID_ZERO_LEN: 2067 bss_cfg->bcast_ssid_ctl = 0; 2068 break; 2069 case NL80211_HIDDEN_SSID_ZERO_CONTENTS: 2070 bss_cfg->bcast_ssid_ctl = 2; 2071 break; 2072 default: 2073 kfree(bss_cfg); 2074 return -EINVAL; 2075 } 2076 2077 mwifiex_uap_set_channel(priv, bss_cfg, params->chandef); 2078 mwifiex_set_uap_rates(bss_cfg, params); 2079 2080 if (mwifiex_set_secure_params(priv, bss_cfg, params)) { 2081 mwifiex_dbg(priv->adapter, ERROR, 2082 "Failed to parse security parameters!\n"); 2083 goto out; 2084 } 2085 2086 mwifiex_set_ht_params(priv, bss_cfg, params); 2087 2088 if (priv->adapter->is_hw_11ac_capable) { 2089 mwifiex_set_vht_params(priv, bss_cfg, params); 2090 mwifiex_set_vht_width(priv, params->chandef.width, 2091 priv->ap_11ac_enabled); 2092 } 2093 2094 if (priv->ap_11ac_enabled) 2095 mwifiex_set_11ac_ba_params(priv); 2096 else 2097 mwifiex_set_ba_params(priv); 2098 2099 mwifiex_set_wmm_params(priv, bss_cfg, params); 2100 2101 if (mwifiex_is_11h_active(priv)) 2102 mwifiex_set_tpc_params(priv, bss_cfg, params); 2103 2104 if (mwifiex_is_11h_active(priv) && 2105 !cfg80211_chandef_dfs_required(wiphy, ¶ms->chandef, 2106 priv->bss_mode)) { 2107 mwifiex_dbg(priv->adapter, INFO, 2108 "Disable 11h extensions in FW\n"); 2109 if (mwifiex_11h_activate(priv, false)) { 2110 mwifiex_dbg(priv->adapter, ERROR, 2111 "Failed to disable 11h extensions!!"); 2112 goto out; 2113 } 2114 priv->state_11h.is_11h_active = false; 2115 } 2116 2117 mwifiex_config_uap_11d(priv, ¶ms->beacon); 2118 2119 if (mwifiex_config_start_uap(priv, bss_cfg)) { 2120 mwifiex_dbg(priv->adapter, ERROR, 2121 "Failed to start AP\n"); 2122 goto out; 2123 } 2124 2125 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon)) 2126 goto out; 2127 2128 if (!netif_carrier_ok(priv->netdev)) 2129 netif_carrier_on(priv->netdev); 2130 mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter); 2131 2132 memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg)); 2133 kfree(bss_cfg); 2134 return 0; 2135 2136 out: 2137 kfree(bss_cfg); 2138 return -1; 2139 } 2140 2141 /* 2142 * CFG802.11 operation handler for disconnection request. 2143 * 2144 * This function does not work when there is already a disconnection 2145 * procedure going on. 2146 */ 2147 static int 2148 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev, 2149 u16 reason_code) 2150 { 2151 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2152 2153 if (!mwifiex_stop_bg_scan(priv)) 2154 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0); 2155 2156 if (mwifiex_deauthenticate(priv, NULL)) 2157 return -EFAULT; 2158 2159 eth_zero_addr(priv->cfg_bssid); 2160 priv->hs2_enabled = false; 2161 2162 return 0; 2163 } 2164 2165 /* 2166 * This function informs the CFG802.11 subsystem of a new IBSS. 2167 * 2168 * The following information are sent to the CFG802.11 subsystem 2169 * to register the new IBSS. If we do not register the new IBSS, 2170 * a kernel panic will result. 2171 * - SSID 2172 * - SSID length 2173 * - BSSID 2174 * - Channel 2175 */ 2176 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv) 2177 { 2178 struct ieee80211_channel *chan; 2179 struct mwifiex_bss_info bss_info; 2180 struct cfg80211_bss *bss; 2181 int ie_len; 2182 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)]; 2183 enum nl80211_band band; 2184 2185 if (mwifiex_get_bss_info(priv, &bss_info)) 2186 return -1; 2187 2188 ie_buf[0] = WLAN_EID_SSID; 2189 ie_buf[1] = bss_info.ssid.ssid_len; 2190 2191 memcpy(&ie_buf[sizeof(struct ieee_types_header)], 2192 &bss_info.ssid.ssid, bss_info.ssid.ssid_len); 2193 ie_len = ie_buf[1] + sizeof(struct ieee_types_header); 2194 2195 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 2196 chan = ieee80211_get_channel(priv->wdev.wiphy, 2197 ieee80211_channel_to_frequency(bss_info.bss_chan, 2198 band)); 2199 2200 bss = cfg80211_inform_bss(priv->wdev.wiphy, chan, 2201 CFG80211_BSS_FTYPE_UNKNOWN, 2202 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS, 2203 0, ie_buf, ie_len, 0, GFP_KERNEL); 2204 if (bss) { 2205 cfg80211_put_bss(priv->wdev.wiphy, bss); 2206 ether_addr_copy(priv->cfg_bssid, bss_info.bssid); 2207 } 2208 2209 return 0; 2210 } 2211 2212 /* 2213 * This function connects with a BSS. 2214 * 2215 * This function handles both Infra and Ad-Hoc modes. It also performs 2216 * validity checking on the provided parameters, disconnects from the 2217 * current BSS (if any), sets up the association/scan parameters, 2218 * including security settings, and performs specific SSID scan before 2219 * trying to connect. 2220 * 2221 * For Infra mode, the function returns failure if the specified SSID 2222 * is not found in scan table. However, for Ad-Hoc mode, it can create 2223 * the IBSS if it does not exist. On successful completion in either case, 2224 * the function notifies the CFG802.11 subsystem of the new BSS connection. 2225 */ 2226 static int 2227 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, 2228 const u8 *ssid, const u8 *bssid, int mode, 2229 struct ieee80211_channel *channel, 2230 struct cfg80211_connect_params *sme, bool privacy, 2231 struct cfg80211_bss **sel_bss) 2232 { 2233 struct cfg80211_ssid req_ssid; 2234 int ret, auth_type = 0; 2235 struct cfg80211_bss *bss = NULL; 2236 u8 is_scanning_required = 0; 2237 2238 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid)); 2239 2240 req_ssid.ssid_len = ssid_len; 2241 if (ssid_len > IEEE80211_MAX_SSID_LEN) { 2242 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n"); 2243 return -EINVAL; 2244 } 2245 2246 memcpy(req_ssid.ssid, ssid, ssid_len); 2247 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) { 2248 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n"); 2249 return -EINVAL; 2250 } 2251 2252 /* As this is new association, clear locally stored 2253 * keys and security related flags */ 2254 priv->sec_info.wpa_enabled = false; 2255 priv->sec_info.wpa2_enabled = false; 2256 priv->wep_key_curr_index = 0; 2257 priv->sec_info.encryption_mode = 0; 2258 priv->sec_info.is_authtype_auto = 0; 2259 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1); 2260 2261 if (mode == NL80211_IFTYPE_ADHOC) { 2262 u16 enable = true; 2263 2264 /* set ibss coalescing_status */ 2265 ret = mwifiex_send_cmd( 2266 priv, 2267 HostCmd_CMD_802_11_IBSS_COALESCING_STATUS, 2268 HostCmd_ACT_GEN_SET, 0, &enable, true); 2269 if (ret) 2270 return ret; 2271 2272 /* "privacy" is set only for ad-hoc mode */ 2273 if (privacy) { 2274 /* 2275 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that 2276 * the firmware can find a matching network from the 2277 * scan. The cfg80211 does not give us the encryption 2278 * mode at this stage so just setting it to WEP here. 2279 */ 2280 priv->sec_info.encryption_mode = 2281 WLAN_CIPHER_SUITE_WEP104; 2282 priv->sec_info.authentication_mode = 2283 NL80211_AUTHTYPE_OPEN_SYSTEM; 2284 } 2285 2286 goto done; 2287 } 2288 2289 /* Now handle infra mode. "sme" is valid for infra mode only */ 2290 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { 2291 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; 2292 priv->sec_info.is_authtype_auto = 1; 2293 } else { 2294 auth_type = sme->auth_type; 2295 } 2296 2297 if (sme->crypto.n_ciphers_pairwise) { 2298 priv->sec_info.encryption_mode = 2299 sme->crypto.ciphers_pairwise[0]; 2300 priv->sec_info.authentication_mode = auth_type; 2301 } 2302 2303 if (sme->crypto.cipher_group) { 2304 priv->sec_info.encryption_mode = sme->crypto.cipher_group; 2305 priv->sec_info.authentication_mode = auth_type; 2306 } 2307 if (sme->ie) 2308 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len); 2309 2310 if (sme->key) { 2311 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) { 2312 mwifiex_dbg(priv->adapter, INFO, 2313 "info: setting wep encryption\t" 2314 "with key len %d\n", sme->key_len); 2315 priv->wep_key_curr_index = sme->key_idx; 2316 ret = mwifiex_set_encode(priv, NULL, sme->key, 2317 sme->key_len, sme->key_idx, 2318 NULL, 0); 2319 } 2320 } 2321 done: 2322 /* 2323 * Scan entries are valid for some time (15 sec). So we can save one 2324 * active scan time if we just try cfg80211_get_bss first. If it fails 2325 * then request scan and cfg80211_get_bss() again for final output. 2326 */ 2327 while (1) { 2328 if (is_scanning_required) { 2329 /* Do specific SSID scanning */ 2330 if (mwifiex_request_scan(priv, &req_ssid)) { 2331 mwifiex_dbg(priv->adapter, ERROR, "scan error\n"); 2332 return -EFAULT; 2333 } 2334 } 2335 2336 /* Find the BSS we want using available scan results */ 2337 if (mode == NL80211_IFTYPE_ADHOC) 2338 bss = cfg80211_get_bss(priv->wdev.wiphy, channel, 2339 bssid, ssid, ssid_len, 2340 IEEE80211_BSS_TYPE_IBSS, 2341 IEEE80211_PRIVACY_ANY); 2342 else 2343 bss = cfg80211_get_bss(priv->wdev.wiphy, channel, 2344 bssid, ssid, ssid_len, 2345 IEEE80211_BSS_TYPE_ESS, 2346 IEEE80211_PRIVACY_ANY); 2347 2348 if (!bss) { 2349 if (is_scanning_required) { 2350 mwifiex_dbg(priv->adapter, MSG, 2351 "assoc: requested bss not found in scan results\n"); 2352 break; 2353 } 2354 is_scanning_required = 1; 2355 } else { 2356 mwifiex_dbg(priv->adapter, MSG, 2357 "info: trying to associate to bssid %pM\n", 2358 bss->bssid); 2359 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN); 2360 break; 2361 } 2362 } 2363 2364 if (bss) 2365 cfg80211_ref_bss(priv->adapter->wiphy, bss); 2366 2367 ret = mwifiex_bss_start(priv, bss, &req_ssid); 2368 if (ret) 2369 goto cleanup; 2370 2371 if (mode == NL80211_IFTYPE_ADHOC) { 2372 /* Inform the BSS information to kernel, otherwise 2373 * kernel will give a panic after successful assoc */ 2374 if (mwifiex_cfg80211_inform_ibss_bss(priv)) { 2375 ret = -EFAULT; 2376 goto cleanup; 2377 } 2378 } 2379 2380 /* Pass the selected BSS entry to caller. */ 2381 if (sel_bss) { 2382 *sel_bss = bss; 2383 bss = NULL; 2384 } 2385 2386 cleanup: 2387 if (bss) 2388 cfg80211_put_bss(priv->adapter->wiphy, bss); 2389 return ret; 2390 } 2391 2392 /* 2393 * CFG802.11 operation handler for association request. 2394 * 2395 * This function does not work when the current mode is set to Ad-Hoc, or 2396 * when there is already an association procedure going on. The given BSS 2397 * information is used to associate. 2398 */ 2399 static int 2400 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, 2401 struct cfg80211_connect_params *sme) 2402 { 2403 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2404 struct mwifiex_adapter *adapter = priv->adapter; 2405 struct cfg80211_bss *bss = NULL; 2406 int ret; 2407 2408 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) { 2409 mwifiex_dbg(adapter, ERROR, 2410 "%s: reject infra assoc request in non-STA role\n", 2411 dev->name); 2412 return -EINVAL; 2413 } 2414 2415 if (priv->wdev.connected) { 2416 mwifiex_dbg(adapter, ERROR, 2417 "%s: already connected\n", dev->name); 2418 return -EALREADY; 2419 } 2420 2421 if (priv->scan_block) 2422 priv->scan_block = false; 2423 2424 if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags) || 2425 test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags)) { 2426 mwifiex_dbg(adapter, ERROR, 2427 "%s: Ignore connection.\t" 2428 "Card removed or FW in bad state\n", 2429 dev->name); 2430 return -EFAULT; 2431 } 2432 2433 mwifiex_dbg(adapter, INFO, 2434 "info: Trying to associate to bssid %pM\n", sme->bssid); 2435 2436 if (!mwifiex_stop_bg_scan(priv)) 2437 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0); 2438 2439 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid, 2440 priv->bss_mode, sme->channel, sme, 0, 2441 &bss); 2442 if (!ret) { 2443 cfg80211_connect_bss(priv->netdev, priv->cfg_bssid, bss, NULL, 2444 0, NULL, 0, WLAN_STATUS_SUCCESS, 2445 GFP_KERNEL, NL80211_TIMEOUT_UNSPECIFIED); 2446 mwifiex_dbg(priv->adapter, MSG, 2447 "info: associated to bssid %pM successfully\n", 2448 priv->cfg_bssid); 2449 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) && 2450 priv->adapter->auto_tdls && 2451 priv->bss_type == MWIFIEX_BSS_TYPE_STA) 2452 mwifiex_setup_auto_tdls_timer(priv); 2453 } else { 2454 mwifiex_dbg(priv->adapter, ERROR, 2455 "info: association to bssid %pM failed\n", 2456 priv->cfg_bssid); 2457 eth_zero_addr(priv->cfg_bssid); 2458 2459 if (ret > 0) 2460 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, 2461 NULL, 0, NULL, 0, ret, 2462 GFP_KERNEL); 2463 else 2464 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, 2465 NULL, 0, NULL, 0, 2466 WLAN_STATUS_UNSPECIFIED_FAILURE, 2467 GFP_KERNEL); 2468 } 2469 2470 return 0; 2471 } 2472 2473 /* 2474 * This function sets following parameters for ibss network. 2475 * - channel 2476 * - start band 2477 * - 11n flag 2478 * - secondary channel offset 2479 */ 2480 static int mwifiex_set_ibss_params(struct mwifiex_private *priv, 2481 struct cfg80211_ibss_params *params) 2482 { 2483 struct mwifiex_adapter *adapter = priv->adapter; 2484 int index = 0, i; 2485 u8 config_bands = 0; 2486 2487 if (params->chandef.chan->band == NL80211_BAND_2GHZ) { 2488 if (!params->basic_rates) { 2489 config_bands = BAND_B | BAND_G; 2490 } else { 2491 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) { 2492 /* 2493 * Rates below 6 Mbps in the table are CCK 2494 * rates; 802.11b and from 6 they are OFDM; 2495 * 802.11G 2496 */ 2497 if (mwifiex_rates[i].bitrate == 60) { 2498 index = 1 << i; 2499 break; 2500 } 2501 } 2502 2503 if (params->basic_rates < index) { 2504 config_bands = BAND_B; 2505 } else { 2506 config_bands = BAND_G; 2507 if (params->basic_rates % index) 2508 config_bands |= BAND_B; 2509 } 2510 } 2511 2512 if (cfg80211_get_chandef_type(¶ms->chandef) != 2513 NL80211_CHAN_NO_HT) 2514 config_bands |= BAND_G | BAND_GN; 2515 } else { 2516 if (cfg80211_get_chandef_type(¶ms->chandef) == 2517 NL80211_CHAN_NO_HT) 2518 config_bands = BAND_A; 2519 else 2520 config_bands = BAND_AN | BAND_A; 2521 } 2522 2523 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) { 2524 adapter->config_bands = config_bands; 2525 adapter->adhoc_start_band = config_bands; 2526 2527 if ((config_bands & BAND_GN) || (config_bands & BAND_AN)) 2528 adapter->adhoc_11n_enabled = true; 2529 else 2530 adapter->adhoc_11n_enabled = false; 2531 } 2532 2533 adapter->sec_chan_offset = 2534 mwifiex_chan_type_to_sec_chan_offset( 2535 cfg80211_get_chandef_type(¶ms->chandef)); 2536 priv->adhoc_channel = ieee80211_frequency_to_channel( 2537 params->chandef.chan->center_freq); 2538 2539 mwifiex_dbg(adapter, INFO, 2540 "info: set ibss band %d, chan %d, chan offset %d\n", 2541 config_bands, priv->adhoc_channel, 2542 adapter->sec_chan_offset); 2543 2544 return 0; 2545 } 2546 2547 /* 2548 * CFG802.11 operation handler to join an IBSS. 2549 * 2550 * This function does not work in any mode other than Ad-Hoc, or if 2551 * a join operation is already in progress. 2552 */ 2553 static int 2554 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2555 struct cfg80211_ibss_params *params) 2556 { 2557 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2558 int ret = 0; 2559 2560 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) { 2561 mwifiex_dbg(priv->adapter, ERROR, 2562 "request to join ibss received\t" 2563 "when station is not in ibss mode\n"); 2564 goto done; 2565 } 2566 2567 mwifiex_dbg(priv->adapter, MSG, "info: trying to join to bssid %pM\n", 2568 params->bssid); 2569 2570 mwifiex_set_ibss_params(priv, params); 2571 2572 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid, 2573 params->bssid, priv->bss_mode, 2574 params->chandef.chan, NULL, 2575 params->privacy, NULL); 2576 done: 2577 if (!ret) { 2578 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, 2579 params->chandef.chan, GFP_KERNEL); 2580 mwifiex_dbg(priv->adapter, MSG, 2581 "info: joined/created adhoc network with bssid\t" 2582 "%pM successfully\n", priv->cfg_bssid); 2583 } else { 2584 mwifiex_dbg(priv->adapter, ERROR, 2585 "info: failed creating/joining adhoc network\n"); 2586 } 2587 2588 return ret; 2589 } 2590 2591 /* 2592 * CFG802.11 operation handler to leave an IBSS. 2593 * 2594 * This function does not work if a leave operation is 2595 * already in progress. 2596 */ 2597 static int 2598 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2599 { 2600 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2601 2602 mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n", 2603 priv->cfg_bssid); 2604 if (mwifiex_deauthenticate(priv, NULL)) 2605 return -EFAULT; 2606 2607 eth_zero_addr(priv->cfg_bssid); 2608 2609 return 0; 2610 } 2611 2612 /* 2613 * CFG802.11 operation handler for scan request. 2614 * 2615 * This function issues a scan request to the firmware based upon 2616 * the user specified scan configuration. On successful completion, 2617 * it also informs the results. 2618 */ 2619 static int 2620 mwifiex_cfg80211_scan(struct wiphy *wiphy, 2621 struct cfg80211_scan_request *request) 2622 { 2623 struct net_device *dev = request->wdev->netdev; 2624 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2625 int i, offset, ret; 2626 struct ieee80211_channel *chan; 2627 struct ieee_types_header *ie; 2628 struct mwifiex_user_scan_cfg *user_scan_cfg; 2629 u8 mac_addr[ETH_ALEN]; 2630 2631 mwifiex_dbg(priv->adapter, CMD, 2632 "info: received scan request on %s\n", dev->name); 2633 2634 /* Block scan request if scan operation or scan cleanup when interface 2635 * is disabled is in process 2636 */ 2637 if (priv->scan_request || priv->scan_aborting) { 2638 mwifiex_dbg(priv->adapter, WARN, 2639 "cmd: Scan already in process..\n"); 2640 return -EBUSY; 2641 } 2642 2643 if (!priv->wdev.connected && priv->scan_block) 2644 priv->scan_block = false; 2645 2646 if (!mwifiex_stop_bg_scan(priv)) 2647 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0); 2648 2649 user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL); 2650 if (!user_scan_cfg) 2651 return -ENOMEM; 2652 2653 priv->scan_request = request; 2654 2655 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) { 2656 get_random_mask_addr(mac_addr, request->mac_addr, 2657 request->mac_addr_mask); 2658 ether_addr_copy(request->mac_addr, mac_addr); 2659 ether_addr_copy(user_scan_cfg->random_mac, mac_addr); 2660 } 2661 2662 user_scan_cfg->num_ssids = request->n_ssids; 2663 user_scan_cfg->ssid_list = request->ssids; 2664 2665 if (request->ie && request->ie_len) { 2666 offset = 0; 2667 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2668 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR) 2669 continue; 2670 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN; 2671 ie = (struct ieee_types_header *)(request->ie + offset); 2672 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len); 2673 offset += sizeof(*ie) + ie->len; 2674 2675 if (offset >= request->ie_len) 2676 break; 2677 } 2678 } 2679 2680 for (i = 0; i < min_t(u32, request->n_channels, 2681 MWIFIEX_USER_SCAN_CHAN_MAX); i++) { 2682 chan = request->channels[i]; 2683 user_scan_cfg->chan_list[i].chan_number = chan->hw_value; 2684 user_scan_cfg->chan_list[i].radio_type = chan->band; 2685 2686 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids) 2687 user_scan_cfg->chan_list[i].scan_type = 2688 MWIFIEX_SCAN_TYPE_PASSIVE; 2689 else 2690 user_scan_cfg->chan_list[i].scan_type = 2691 MWIFIEX_SCAN_TYPE_ACTIVE; 2692 2693 user_scan_cfg->chan_list[i].scan_time = 0; 2694 } 2695 2696 if (priv->adapter->scan_chan_gap_enabled && 2697 mwifiex_is_any_intf_active(priv)) 2698 user_scan_cfg->scan_chan_gap = 2699 priv->adapter->scan_chan_gap_time; 2700 2701 ret = mwifiex_scan_networks(priv, user_scan_cfg); 2702 kfree(user_scan_cfg); 2703 if (ret) { 2704 mwifiex_dbg(priv->adapter, ERROR, 2705 "scan failed: %d\n", ret); 2706 priv->scan_aborting = false; 2707 priv->scan_request = NULL; 2708 return ret; 2709 } 2710 2711 if (request->ie && request->ie_len) { 2712 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2713 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) { 2714 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR; 2715 memset(&priv->vs_ie[i].ie, 0, 2716 MWIFIEX_MAX_VSIE_LEN); 2717 } 2718 } 2719 } 2720 return 0; 2721 } 2722 2723 /* CFG802.11 operation handler for sched_scan_start. 2724 * 2725 * This function issues a bgscan config request to the firmware based upon 2726 * the user specified sched_scan configuration. On successful completion, 2727 * firmware will generate BGSCAN_REPORT event, driver should issue bgscan 2728 * query command to get sched_scan results from firmware. 2729 */ 2730 static int 2731 mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy, 2732 struct net_device *dev, 2733 struct cfg80211_sched_scan_request *request) 2734 { 2735 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2736 int i, offset; 2737 struct ieee80211_channel *chan; 2738 struct mwifiex_bg_scan_cfg *bgscan_cfg; 2739 struct ieee_types_header *ie; 2740 2741 if (!request || (!request->n_ssids && !request->n_match_sets)) { 2742 wiphy_err(wiphy, "%s : Invalid Sched_scan parameters", 2743 __func__); 2744 return -EINVAL; 2745 } 2746 2747 wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ", 2748 request->n_ssids, request->n_match_sets); 2749 wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n", 2750 request->n_channels, request->scan_plans->interval, 2751 (int)request->ie_len); 2752 2753 bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL); 2754 if (!bgscan_cfg) 2755 return -ENOMEM; 2756 2757 if (priv->scan_request || priv->scan_aborting) 2758 bgscan_cfg->start_later = true; 2759 2760 bgscan_cfg->num_ssids = request->n_match_sets; 2761 bgscan_cfg->ssid_list = request->match_sets; 2762 2763 if (request->ie && request->ie_len) { 2764 offset = 0; 2765 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2766 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR) 2767 continue; 2768 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN; 2769 ie = (struct ieee_types_header *)(request->ie + offset); 2770 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len); 2771 offset += sizeof(*ie) + ie->len; 2772 2773 if (offset >= request->ie_len) 2774 break; 2775 } 2776 } 2777 2778 for (i = 0; i < min_t(u32, request->n_channels, 2779 MWIFIEX_BG_SCAN_CHAN_MAX); i++) { 2780 chan = request->channels[i]; 2781 bgscan_cfg->chan_list[i].chan_number = chan->hw_value; 2782 bgscan_cfg->chan_list[i].radio_type = chan->band; 2783 2784 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids) 2785 bgscan_cfg->chan_list[i].scan_type = 2786 MWIFIEX_SCAN_TYPE_PASSIVE; 2787 else 2788 bgscan_cfg->chan_list[i].scan_type = 2789 MWIFIEX_SCAN_TYPE_ACTIVE; 2790 2791 bgscan_cfg->chan_list[i].scan_time = 0; 2792 } 2793 2794 bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels, 2795 MWIFIEX_BG_SCAN_CHAN_MAX); 2796 2797 /* Use at least 15 second for per scan cycle */ 2798 bgscan_cfg->scan_interval = (request->scan_plans->interval > 2799 MWIFIEX_BGSCAN_INTERVAL) ? 2800 request->scan_plans->interval : 2801 MWIFIEX_BGSCAN_INTERVAL; 2802 2803 bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT; 2804 bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH | 2805 MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE; 2806 bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA; 2807 bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET; 2808 bgscan_cfg->enable = true; 2809 if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) { 2810 bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH; 2811 bgscan_cfg->rssi_threshold = request->min_rssi_thold; 2812 } 2813 2814 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG, 2815 HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) { 2816 kfree(bgscan_cfg); 2817 return -EFAULT; 2818 } 2819 2820 priv->sched_scanning = true; 2821 2822 kfree(bgscan_cfg); 2823 return 0; 2824 } 2825 2826 /* CFG802.11 operation handler for sched_scan_stop. 2827 * 2828 * This function issues a bgscan config command to disable 2829 * previous bgscan configuration in the firmware 2830 */ 2831 static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy, 2832 struct net_device *dev, u64 reqid) 2833 { 2834 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2835 2836 wiphy_info(wiphy, "sched scan stop!"); 2837 mwifiex_stop_bg_scan(priv); 2838 2839 return 0; 2840 } 2841 2842 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info, 2843 struct mwifiex_private *priv) 2844 { 2845 struct mwifiex_adapter *adapter = priv->adapter; 2846 2847 vht_info->vht_supported = true; 2848 2849 vht_info->cap = adapter->hw_dot_11ac_dev_cap; 2850 /* Update MCS support for VHT */ 2851 vht_info->vht_mcs.rx_mcs_map = cpu_to_le16( 2852 adapter->hw_dot_11ac_mcs_support & 0xFFFF); 2853 vht_info->vht_mcs.rx_highest = 0; 2854 vht_info->vht_mcs.tx_mcs_map = cpu_to_le16( 2855 adapter->hw_dot_11ac_mcs_support >> 16); 2856 vht_info->vht_mcs.tx_highest = 0; 2857 } 2858 2859 /* 2860 * This function sets up the CFG802.11 specific HT capability fields 2861 * with default values. 2862 * 2863 * The following default values are set - 2864 * - HT Supported = True 2865 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K 2866 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE 2867 * - HT Capabilities supported by firmware 2868 * - MCS information, Rx mask = 0xff 2869 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01) 2870 */ 2871 static void 2872 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info, 2873 struct mwifiex_private *priv) 2874 { 2875 int rx_mcs_supp; 2876 struct ieee80211_mcs_info mcs_set; 2877 u8 *mcs = (u8 *)&mcs_set; 2878 struct mwifiex_adapter *adapter = priv->adapter; 2879 2880 ht_info->ht_supported = true; 2881 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; 2882 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; 2883 2884 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); 2885 2886 /* Fill HT capability information */ 2887 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) 2888 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 2889 else 2890 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 2891 2892 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap)) 2893 ht_info->cap |= IEEE80211_HT_CAP_SGI_20; 2894 else 2895 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20; 2896 2897 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap)) 2898 ht_info->cap |= IEEE80211_HT_CAP_SGI_40; 2899 else 2900 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40; 2901 2902 if (adapter->user_dev_mcs_support == HT_STREAM_2X2) 2903 ht_info->cap |= 2 << IEEE80211_HT_CAP_RX_STBC_SHIFT; 2904 else 2905 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT; 2906 2907 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap)) 2908 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC; 2909 else 2910 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC; 2911 2912 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap)) 2913 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD; 2914 else 2915 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD; 2916 2917 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap)) 2918 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT; 2919 else 2920 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT; 2921 2922 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap)) 2923 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING; 2924 else 2925 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING; 2926 2927 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU; 2928 ht_info->cap |= IEEE80211_HT_CAP_SM_PS; 2929 2930 rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support); 2931 /* Set MCS for 1x1/2x2 */ 2932 memset(mcs, 0xff, rx_mcs_supp); 2933 /* Clear all the other values */ 2934 memset(&mcs[rx_mcs_supp], 0, 2935 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp); 2936 if (priv->bss_mode == NL80211_IFTYPE_STATION || 2937 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) 2938 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */ 2939 SETHT_MCS32(mcs_set.rx_mask); 2940 2941 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info)); 2942 2943 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; 2944 } 2945 2946 /* 2947 * create a new virtual interface with the given name and name assign type 2948 */ 2949 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy, 2950 const char *name, 2951 unsigned char name_assign_type, 2952 enum nl80211_iftype type, 2953 struct vif_params *params) 2954 { 2955 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 2956 struct mwifiex_private *priv; 2957 struct net_device *dev; 2958 void *mdev_priv; 2959 int ret; 2960 2961 if (!adapter) 2962 return ERR_PTR(-EFAULT); 2963 2964 switch (type) { 2965 case NL80211_IFTYPE_UNSPECIFIED: 2966 case NL80211_IFTYPE_STATION: 2967 case NL80211_IFTYPE_ADHOC: 2968 if (adapter->curr_iface_comb.sta_intf == 2969 adapter->iface_limit.sta_intf) { 2970 mwifiex_dbg(adapter, ERROR, 2971 "cannot create multiple sta/adhoc ifaces\n"); 2972 return ERR_PTR(-EINVAL); 2973 } 2974 2975 priv = mwifiex_get_unused_priv_by_bss_type( 2976 adapter, MWIFIEX_BSS_TYPE_STA); 2977 if (!priv) { 2978 mwifiex_dbg(adapter, ERROR, 2979 "could not get free private struct\n"); 2980 return ERR_PTR(-EFAULT); 2981 } 2982 2983 priv->wdev.wiphy = wiphy; 2984 priv->wdev.iftype = NL80211_IFTYPE_STATION; 2985 2986 if (type == NL80211_IFTYPE_UNSPECIFIED) 2987 priv->bss_mode = NL80211_IFTYPE_STATION; 2988 else 2989 priv->bss_mode = type; 2990 2991 priv->bss_type = MWIFIEX_BSS_TYPE_STA; 2992 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 2993 priv->bss_priority = 0; 2994 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 2995 2996 break; 2997 case NL80211_IFTYPE_AP: 2998 if (adapter->curr_iface_comb.uap_intf == 2999 adapter->iface_limit.uap_intf) { 3000 mwifiex_dbg(adapter, ERROR, 3001 "cannot create multiple AP ifaces\n"); 3002 return ERR_PTR(-EINVAL); 3003 } 3004 3005 priv = mwifiex_get_unused_priv_by_bss_type( 3006 adapter, MWIFIEX_BSS_TYPE_UAP); 3007 if (!priv) { 3008 mwifiex_dbg(adapter, ERROR, 3009 "could not get free private struct\n"); 3010 return ERR_PTR(-EFAULT); 3011 } 3012 3013 priv->wdev.wiphy = wiphy; 3014 priv->wdev.iftype = NL80211_IFTYPE_AP; 3015 3016 priv->bss_type = MWIFIEX_BSS_TYPE_UAP; 3017 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 3018 priv->bss_priority = 0; 3019 priv->bss_role = MWIFIEX_BSS_ROLE_UAP; 3020 priv->bss_started = 0; 3021 priv->bss_mode = type; 3022 3023 break; 3024 case NL80211_IFTYPE_P2P_CLIENT: 3025 if (adapter->curr_iface_comb.p2p_intf == 3026 adapter->iface_limit.p2p_intf) { 3027 mwifiex_dbg(adapter, ERROR, 3028 "cannot create multiple P2P ifaces\n"); 3029 return ERR_PTR(-EINVAL); 3030 } 3031 3032 priv = mwifiex_get_unused_priv_by_bss_type( 3033 adapter, MWIFIEX_BSS_TYPE_P2P); 3034 if (!priv) { 3035 mwifiex_dbg(adapter, ERROR, 3036 "could not get free private struct\n"); 3037 return ERR_PTR(-EFAULT); 3038 } 3039 3040 priv->wdev.wiphy = wiphy; 3041 /* At start-up, wpa_supplicant tries to change the interface 3042 * to NL80211_IFTYPE_STATION if it is not managed mode. 3043 */ 3044 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT; 3045 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT; 3046 3047 /* Setting bss_type to P2P tells firmware that this interface 3048 * is receiving P2P peers found during find phase and doing 3049 * action frame handshake. 3050 */ 3051 priv->bss_type = MWIFIEX_BSS_TYPE_P2P; 3052 3053 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 3054 priv->bss_priority = 0; 3055 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 3056 priv->bss_started = 0; 3057 3058 if (mwifiex_cfg80211_init_p2p_client(priv)) { 3059 memset(&priv->wdev, 0, sizeof(priv->wdev)); 3060 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 3061 return ERR_PTR(-EFAULT); 3062 } 3063 3064 break; 3065 default: 3066 mwifiex_dbg(adapter, ERROR, "type not supported\n"); 3067 return ERR_PTR(-EINVAL); 3068 } 3069 3070 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name, 3071 name_assign_type, ether_setup, 3072 IEEE80211_NUM_ACS, 1); 3073 if (!dev) { 3074 mwifiex_dbg(adapter, ERROR, 3075 "no memory available for netdevice\n"); 3076 ret = -ENOMEM; 3077 goto err_alloc_netdev; 3078 } 3079 3080 mwifiex_init_priv_params(priv, dev); 3081 3082 priv->netdev = dev; 3083 3084 if (!adapter->mfg_mode) { 3085 mwifiex_set_mac_address(priv, dev, false, NULL); 3086 3087 ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 3088 HostCmd_ACT_GEN_SET, 0, NULL, true); 3089 if (ret) 3090 goto err_set_bss_mode; 3091 3092 ret = mwifiex_sta_init_cmd(priv, false, false); 3093 if (ret) 3094 goto err_sta_init; 3095 } 3096 3097 mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv); 3098 if (adapter->is_hw_11ac_capable) 3099 mwifiex_setup_vht_caps( 3100 &wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv); 3101 3102 if (adapter->config_bands & BAND_A) 3103 mwifiex_setup_ht_caps( 3104 &wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv); 3105 3106 if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable) 3107 mwifiex_setup_vht_caps( 3108 &wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv); 3109 3110 dev_net_set(dev, wiphy_net(wiphy)); 3111 dev->ieee80211_ptr = &priv->wdev; 3112 dev->ieee80211_ptr->iftype = priv->bss_mode; 3113 SET_NETDEV_DEV(dev, wiphy_dev(wiphy)); 3114 3115 dev->flags |= IFF_BROADCAST | IFF_MULTICAST; 3116 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT; 3117 dev->needed_headroom = MWIFIEX_MIN_DATA_HEADER_LEN; 3118 dev->ethtool_ops = &mwifiex_ethtool_ops; 3119 3120 mdev_priv = netdev_priv(dev); 3121 *((unsigned long *) mdev_priv) = (unsigned long) priv; 3122 3123 SET_NETDEV_DEV(dev, adapter->dev); 3124 3125 priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s", 3126 WQ_HIGHPRI | 3127 WQ_MEM_RECLAIM | 3128 WQ_UNBOUND, 1, name); 3129 if (!priv->dfs_cac_workqueue) { 3130 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS CAC queue\n"); 3131 ret = -ENOMEM; 3132 goto err_alloc_cac; 3133 } 3134 3135 INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue); 3136 3137 priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s", 3138 WQ_HIGHPRI | WQ_UNBOUND | 3139 WQ_MEM_RECLAIM, 1, name); 3140 if (!priv->dfs_chan_sw_workqueue) { 3141 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS channel sw queue\n"); 3142 ret = -ENOMEM; 3143 goto err_alloc_chsw; 3144 } 3145 3146 INIT_DELAYED_WORK(&priv->dfs_chan_sw_work, 3147 mwifiex_dfs_chan_sw_work_queue); 3148 3149 mutex_init(&priv->async_mutex); 3150 3151 /* Register network device */ 3152 if (cfg80211_register_netdevice(dev)) { 3153 mwifiex_dbg(adapter, ERROR, "cannot register network device\n"); 3154 ret = -EFAULT; 3155 goto err_reg_netdev; 3156 } 3157 3158 mwifiex_dbg(adapter, INFO, 3159 "info: %s: Marvell 802.11 Adapter\n", dev->name); 3160 3161 #ifdef CONFIG_DEBUG_FS 3162 mwifiex_dev_debugfs_init(priv); 3163 #endif 3164 3165 update_vif_type_counter(adapter, type, +1); 3166 3167 return &priv->wdev; 3168 3169 err_reg_netdev: 3170 destroy_workqueue(priv->dfs_chan_sw_workqueue); 3171 priv->dfs_chan_sw_workqueue = NULL; 3172 err_alloc_chsw: 3173 destroy_workqueue(priv->dfs_cac_workqueue); 3174 priv->dfs_cac_workqueue = NULL; 3175 err_alloc_cac: 3176 free_netdev(dev); 3177 priv->netdev = NULL; 3178 err_sta_init: 3179 err_set_bss_mode: 3180 err_alloc_netdev: 3181 memset(&priv->wdev, 0, sizeof(priv->wdev)); 3182 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 3183 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; 3184 return ERR_PTR(ret); 3185 } 3186 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf); 3187 3188 /* 3189 * del_virtual_intf: remove the virtual interface determined by dev 3190 */ 3191 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) 3192 { 3193 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 3194 struct mwifiex_adapter *adapter = priv->adapter; 3195 struct sk_buff *skb, *tmp; 3196 3197 #ifdef CONFIG_DEBUG_FS 3198 mwifiex_dev_debugfs_remove(priv); 3199 #endif 3200 3201 if (priv->sched_scanning) 3202 priv->sched_scanning = false; 3203 3204 mwifiex_stop_net_dev_queue(priv->netdev, adapter); 3205 3206 skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) { 3207 skb_unlink(skb, &priv->bypass_txq); 3208 mwifiex_write_data_complete(priv->adapter, skb, 0, -1); 3209 } 3210 3211 if (netif_carrier_ok(priv->netdev)) 3212 netif_carrier_off(priv->netdev); 3213 3214 if (wdev->netdev->reg_state == NETREG_REGISTERED) 3215 cfg80211_unregister_netdevice(wdev->netdev); 3216 3217 if (priv->dfs_cac_workqueue) { 3218 destroy_workqueue(priv->dfs_cac_workqueue); 3219 priv->dfs_cac_workqueue = NULL; 3220 } 3221 3222 if (priv->dfs_chan_sw_workqueue) { 3223 destroy_workqueue(priv->dfs_chan_sw_workqueue); 3224 priv->dfs_chan_sw_workqueue = NULL; 3225 } 3226 /* Clear the priv in adapter */ 3227 priv->netdev = NULL; 3228 3229 update_vif_type_counter(adapter, priv->bss_mode, -1); 3230 3231 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; 3232 3233 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA || 3234 GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) 3235 kfree(priv->hist_data); 3236 3237 return 0; 3238 } 3239 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf); 3240 3241 static bool 3242 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq, 3243 u8 max_byte_seq) 3244 { 3245 int j, k, valid_byte_cnt = 0; 3246 bool dont_care_byte = false; 3247 3248 for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) { 3249 for (k = 0; k < 8; k++) { 3250 if (pat->mask[j] & 1 << k) { 3251 memcpy(byte_seq + valid_byte_cnt, 3252 &pat->pattern[j * 8 + k], 1); 3253 valid_byte_cnt++; 3254 if (dont_care_byte) 3255 return false; 3256 } else { 3257 if (valid_byte_cnt) 3258 dont_care_byte = true; 3259 } 3260 3261 /* wildcard bytes record as the offset 3262 * before the valid byte 3263 */ 3264 if (!valid_byte_cnt && !dont_care_byte) 3265 pat->pkt_offset++; 3266 3267 if (valid_byte_cnt > max_byte_seq) 3268 return false; 3269 } 3270 } 3271 3272 byte_seq[max_byte_seq] = valid_byte_cnt; 3273 3274 return true; 3275 } 3276 3277 #ifdef CONFIG_PM 3278 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv, 3279 struct mwifiex_mef_entry *mef_entry) 3280 { 3281 int i, filt_num = 0, num_ipv4 = 0; 3282 struct in_device *in_dev; 3283 struct in_ifaddr *ifa; 3284 __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR]; 3285 struct mwifiex_adapter *adapter = priv->adapter; 3286 3287 mef_entry->mode = MEF_MODE_HOST_SLEEP; 3288 mef_entry->action = MEF_ACTION_AUTO_ARP; 3289 3290 /* Enable ARP offload feature */ 3291 memset(ips, 0, sizeof(ips)); 3292 for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) { 3293 if (adapter->priv[i]->netdev) { 3294 in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev); 3295 if (!in_dev) 3296 continue; 3297 ifa = rtnl_dereference(in_dev->ifa_list); 3298 if (!ifa || !ifa->ifa_local) 3299 continue; 3300 ips[i] = ifa->ifa_local; 3301 num_ipv4++; 3302 } 3303 } 3304 3305 for (i = 0; i < num_ipv4; i++) { 3306 if (!ips[i]) 3307 continue; 3308 mef_entry->filter[filt_num].repeat = 1; 3309 memcpy(mef_entry->filter[filt_num].byte_seq, 3310 (u8 *)&ips[i], sizeof(ips[i])); 3311 mef_entry->filter[filt_num]. 3312 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3313 sizeof(ips[i]); 3314 mef_entry->filter[filt_num].offset = 46; 3315 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3316 if (filt_num) { 3317 mef_entry->filter[filt_num].filt_action = 3318 TYPE_OR; 3319 } 3320 filt_num++; 3321 } 3322 3323 mef_entry->filter[filt_num].repeat = 1; 3324 mef_entry->filter[filt_num].byte_seq[0] = 0x08; 3325 mef_entry->filter[filt_num].byte_seq[1] = 0x06; 3326 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2; 3327 mef_entry->filter[filt_num].offset = 20; 3328 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3329 mef_entry->filter[filt_num].filt_action = TYPE_AND; 3330 } 3331 3332 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv, 3333 struct mwifiex_ds_mef_cfg *mef_cfg, 3334 struct mwifiex_mef_entry *mef_entry, 3335 struct cfg80211_wowlan *wowlan) 3336 { 3337 int i, filt_num = 0, ret = 0; 3338 bool first_pat = true; 3339 u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1]; 3340 static const u8 ipv4_mc_mac[] = {0x33, 0x33}; 3341 static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e}; 3342 3343 mef_entry->mode = MEF_MODE_HOST_SLEEP; 3344 mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST; 3345 3346 for (i = 0; i < wowlan->n_patterns; i++) { 3347 memset(byte_seq, 0, sizeof(byte_seq)); 3348 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i], 3349 byte_seq, 3350 MWIFIEX_MEF_MAX_BYTESEQ)) { 3351 mwifiex_dbg(priv->adapter, ERROR, 3352 "Pattern not supported\n"); 3353 return -EOPNOTSUPP; 3354 } 3355 3356 if (!wowlan->patterns[i].pkt_offset) { 3357 if (!(byte_seq[0] & 0x01) && 3358 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) { 3359 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST; 3360 continue; 3361 } else if (is_broadcast_ether_addr(byte_seq)) { 3362 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST; 3363 continue; 3364 } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) && 3365 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) || 3366 (!memcmp(byte_seq, ipv6_mc_mac, 3) && 3367 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) { 3368 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST; 3369 continue; 3370 } 3371 } 3372 mef_entry->filter[filt_num].repeat = 1; 3373 mef_entry->filter[filt_num].offset = 3374 wowlan->patterns[i].pkt_offset; 3375 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq, 3376 sizeof(byte_seq)); 3377 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3378 3379 if (first_pat) { 3380 first_pat = false; 3381 mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n"); 3382 } else { 3383 mef_entry->filter[filt_num].filt_action = TYPE_AND; 3384 } 3385 3386 filt_num++; 3387 } 3388 3389 if (wowlan->magic_pkt) { 3390 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST; 3391 mef_entry->filter[filt_num].repeat = 16; 3392 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr, 3393 ETH_ALEN); 3394 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3395 ETH_ALEN; 3396 mef_entry->filter[filt_num].offset = 28; 3397 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3398 if (filt_num) 3399 mef_entry->filter[filt_num].filt_action = TYPE_OR; 3400 3401 filt_num++; 3402 mef_entry->filter[filt_num].repeat = 16; 3403 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr, 3404 ETH_ALEN); 3405 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3406 ETH_ALEN; 3407 mef_entry->filter[filt_num].offset = 56; 3408 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3409 mef_entry->filter[filt_num].filt_action = TYPE_OR; 3410 mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n"); 3411 } 3412 return ret; 3413 } 3414 3415 static int mwifiex_set_mef_filter(struct mwifiex_private *priv, 3416 struct cfg80211_wowlan *wowlan) 3417 { 3418 int ret = 0, num_entries = 1; 3419 struct mwifiex_ds_mef_cfg mef_cfg; 3420 struct mwifiex_mef_entry *mef_entry; 3421 3422 if (wowlan->n_patterns || wowlan->magic_pkt) 3423 num_entries++; 3424 3425 mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL); 3426 if (!mef_entry) 3427 return -ENOMEM; 3428 3429 memset(&mef_cfg, 0, sizeof(mef_cfg)); 3430 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST | 3431 MWIFIEX_CRITERIA_UNICAST; 3432 mef_cfg.num_entries = num_entries; 3433 mef_cfg.mef_entry = mef_entry; 3434 3435 mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]); 3436 3437 if (wowlan->n_patterns || wowlan->magic_pkt) { 3438 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg, 3439 &mef_entry[1], wowlan); 3440 if (ret) 3441 goto err; 3442 } 3443 3444 if (!mef_cfg.criteria) 3445 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST | 3446 MWIFIEX_CRITERIA_UNICAST | 3447 MWIFIEX_CRITERIA_MULTICAST; 3448 3449 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG, 3450 HostCmd_ACT_GEN_SET, 0, 3451 &mef_cfg, true); 3452 3453 err: 3454 kfree(mef_entry); 3455 return ret; 3456 } 3457 3458 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy, 3459 struct cfg80211_wowlan *wowlan) 3460 { 3461 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3462 struct mwifiex_ds_hs_cfg hs_cfg; 3463 int i, ret = 0, retry_num = 10; 3464 struct mwifiex_private *priv; 3465 struct mwifiex_private *sta_priv = 3466 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3467 3468 sta_priv->scan_aborting = true; 3469 for (i = 0; i < adapter->priv_num; i++) { 3470 priv = adapter->priv[i]; 3471 mwifiex_abort_cac(priv); 3472 } 3473 3474 mwifiex_cancel_all_pending_cmd(adapter); 3475 3476 for (i = 0; i < adapter->priv_num; i++) { 3477 priv = adapter->priv[i]; 3478 if (priv && priv->netdev) 3479 netif_device_detach(priv->netdev); 3480 } 3481 3482 for (i = 0; i < retry_num; i++) { 3483 if (!mwifiex_wmm_lists_empty(adapter) || 3484 !mwifiex_bypass_txlist_empty(adapter) || 3485 !skb_queue_empty(&adapter->tx_data_q)) 3486 usleep_range(10000, 15000); 3487 else 3488 break; 3489 } 3490 3491 if (!wowlan) { 3492 mwifiex_dbg(adapter, INFO, 3493 "None of the WOWLAN triggers enabled\n"); 3494 ret = 0; 3495 goto done; 3496 } 3497 3498 if (!sta_priv->media_connected && !wowlan->nd_config) { 3499 mwifiex_dbg(adapter, ERROR, 3500 "Can not configure WOWLAN in disconnected state\n"); 3501 ret = 0; 3502 goto done; 3503 } 3504 3505 ret = mwifiex_set_mef_filter(sta_priv, wowlan); 3506 if (ret) { 3507 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n"); 3508 goto done; 3509 } 3510 3511 memset(&hs_cfg, 0, sizeof(hs_cfg)); 3512 hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions); 3513 3514 if (wowlan->nd_config) { 3515 mwifiex_dbg(adapter, INFO, "Wake on net detect\n"); 3516 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT; 3517 mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev, 3518 wowlan->nd_config); 3519 } 3520 3521 if (wowlan->disconnect) { 3522 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT; 3523 mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n"); 3524 } 3525 3526 hs_cfg.is_invoke_hostcmd = false; 3527 hs_cfg.gpio = adapter->hs_cfg.gpio; 3528 hs_cfg.gap = adapter->hs_cfg.gap; 3529 ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET, 3530 MWIFIEX_SYNC_CMD, &hs_cfg); 3531 if (ret) 3532 mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n"); 3533 3534 done: 3535 sta_priv->scan_aborting = false; 3536 return ret; 3537 } 3538 3539 static int mwifiex_cfg80211_resume(struct wiphy *wiphy) 3540 { 3541 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3542 struct mwifiex_private *priv; 3543 struct mwifiex_ds_wakeup_reason wakeup_reason; 3544 struct cfg80211_wowlan_wakeup wakeup_report; 3545 int i; 3546 bool report_wakeup_reason = true; 3547 3548 for (i = 0; i < adapter->priv_num; i++) { 3549 priv = adapter->priv[i]; 3550 if (priv && priv->netdev) 3551 netif_device_attach(priv->netdev); 3552 } 3553 3554 if (!wiphy->wowlan_config) 3555 goto done; 3556 3557 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3558 mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD, 3559 &wakeup_reason); 3560 memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup)); 3561 3562 wakeup_report.pattern_idx = -1; 3563 3564 switch (wakeup_reason.hs_wakeup_reason) { 3565 case NO_HSWAKEUP_REASON: 3566 break; 3567 case BCAST_DATA_MATCHED: 3568 break; 3569 case MCAST_DATA_MATCHED: 3570 break; 3571 case UCAST_DATA_MATCHED: 3572 break; 3573 case MASKTABLE_EVENT_MATCHED: 3574 break; 3575 case NON_MASKABLE_EVENT_MATCHED: 3576 if (wiphy->wowlan_config->disconnect) 3577 wakeup_report.disconnect = true; 3578 if (wiphy->wowlan_config->nd_config) 3579 wakeup_report.net_detect = adapter->nd_info; 3580 break; 3581 case NON_MASKABLE_CONDITION_MATCHED: 3582 break; 3583 case MAGIC_PATTERN_MATCHED: 3584 if (wiphy->wowlan_config->magic_pkt) 3585 wakeup_report.magic_pkt = true; 3586 if (wiphy->wowlan_config->n_patterns) 3587 wakeup_report.pattern_idx = 1; 3588 break; 3589 case GTK_REKEY_FAILURE: 3590 if (wiphy->wowlan_config->gtk_rekey_failure) 3591 wakeup_report.gtk_rekey_failure = true; 3592 break; 3593 default: 3594 report_wakeup_reason = false; 3595 break; 3596 } 3597 3598 if (report_wakeup_reason) 3599 cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report, 3600 GFP_KERNEL); 3601 3602 done: 3603 if (adapter->nd_info) { 3604 for (i = 0 ; i < adapter->nd_info->n_matches ; i++) 3605 kfree(adapter->nd_info->matches[i]); 3606 kfree(adapter->nd_info); 3607 adapter->nd_info = NULL; 3608 } 3609 3610 return 0; 3611 } 3612 3613 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy, 3614 bool enabled) 3615 { 3616 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3617 3618 device_set_wakeup_enable(adapter->dev, enabled); 3619 } 3620 3621 static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev, 3622 struct cfg80211_gtk_rekey_data *data) 3623 { 3624 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3625 3626 if (!ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info)) 3627 return -EOPNOTSUPP; 3628 3629 return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG, 3630 HostCmd_ACT_GEN_SET, 0, data, true); 3631 } 3632 3633 #endif 3634 3635 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq) 3636 { 3637 static const u8 ipv4_mc_mac[] = {0x33, 0x33}; 3638 static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e}; 3639 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff}; 3640 3641 if ((byte_seq[0] & 0x01) && 3642 (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1)) 3643 return PACKET_TYPE_UNICAST; 3644 else if (!memcmp(byte_seq, bc_mac, 4)) 3645 return PACKET_TYPE_BROADCAST; 3646 else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) && 3647 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) || 3648 (!memcmp(byte_seq, ipv6_mc_mac, 3) && 3649 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3)) 3650 return PACKET_TYPE_MULTICAST; 3651 3652 return 0; 3653 } 3654 3655 static int 3656 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv, 3657 struct cfg80211_coalesce_rules *crule, 3658 struct mwifiex_coalesce_rule *mrule) 3659 { 3660 u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1]; 3661 struct filt_field_param *param; 3662 int i; 3663 3664 mrule->max_coalescing_delay = crule->delay; 3665 3666 param = mrule->params; 3667 3668 for (i = 0; i < crule->n_patterns; i++) { 3669 memset(byte_seq, 0, sizeof(byte_seq)); 3670 if (!mwifiex_is_pattern_supported(&crule->patterns[i], 3671 byte_seq, 3672 MWIFIEX_COALESCE_MAX_BYTESEQ)) { 3673 mwifiex_dbg(priv->adapter, ERROR, 3674 "Pattern not supported\n"); 3675 return -EOPNOTSUPP; 3676 } 3677 3678 if (!crule->patterns[i].pkt_offset) { 3679 u8 pkt_type; 3680 3681 pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq); 3682 if (pkt_type && mrule->pkt_type) { 3683 mwifiex_dbg(priv->adapter, ERROR, 3684 "Multiple packet types not allowed\n"); 3685 return -EOPNOTSUPP; 3686 } else if (pkt_type) { 3687 mrule->pkt_type = pkt_type; 3688 continue; 3689 } 3690 } 3691 3692 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH) 3693 param->operation = RECV_FILTER_MATCH_TYPE_EQ; 3694 else 3695 param->operation = RECV_FILTER_MATCH_TYPE_NE; 3696 3697 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ]; 3698 memcpy(param->operand_byte_stream, byte_seq, 3699 param->operand_len); 3700 param->offset = crule->patterns[i].pkt_offset; 3701 param++; 3702 3703 mrule->num_of_fields++; 3704 } 3705 3706 if (!mrule->pkt_type) { 3707 mwifiex_dbg(priv->adapter, ERROR, 3708 "Packet type can not be determined\n"); 3709 return -EOPNOTSUPP; 3710 } 3711 3712 return 0; 3713 } 3714 3715 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy, 3716 struct cfg80211_coalesce *coalesce) 3717 { 3718 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3719 int i, ret; 3720 struct mwifiex_ds_coalesce_cfg coalesce_cfg; 3721 struct mwifiex_private *priv = 3722 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3723 3724 memset(&coalesce_cfg, 0, sizeof(coalesce_cfg)); 3725 if (!coalesce) { 3726 mwifiex_dbg(adapter, WARN, 3727 "Disable coalesce and reset all previous rules\n"); 3728 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG, 3729 HostCmd_ACT_GEN_SET, 0, 3730 &coalesce_cfg, true); 3731 } 3732 3733 coalesce_cfg.num_of_rules = coalesce->n_rules; 3734 for (i = 0; i < coalesce->n_rules; i++) { 3735 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i], 3736 &coalesce_cfg.rule[i]); 3737 if (ret) { 3738 mwifiex_dbg(adapter, ERROR, 3739 "Recheck the patterns provided for rule %d\n", 3740 i + 1); 3741 return ret; 3742 } 3743 } 3744 3745 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG, 3746 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true); 3747 } 3748 3749 /* cfg80211 ops handler for tdls_mgmt. 3750 * Function prepares TDLS action frame packets and forwards them to FW 3751 */ 3752 static int 3753 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 3754 const u8 *peer, u8 action_code, u8 dialog_token, 3755 u16 status_code, u32 peer_capability, 3756 bool initiator, const u8 *extra_ies, 3757 size_t extra_ies_len) 3758 { 3759 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3760 int ret; 3761 3762 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) 3763 return -EOPNOTSUPP; 3764 3765 /* make sure we are in station mode and connected */ 3766 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected)) 3767 return -EOPNOTSUPP; 3768 3769 switch (action_code) { 3770 case WLAN_TDLS_SETUP_REQUEST: 3771 mwifiex_dbg(priv->adapter, MSG, 3772 "Send TDLS Setup Request to %pM status_code=%d\n", 3773 peer, status_code); 3774 mwifiex_add_auto_tdls_peer(priv, peer); 3775 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3776 dialog_token, status_code, 3777 extra_ies, extra_ies_len); 3778 break; 3779 case WLAN_TDLS_SETUP_RESPONSE: 3780 mwifiex_add_auto_tdls_peer(priv, peer); 3781 mwifiex_dbg(priv->adapter, MSG, 3782 "Send TDLS Setup Response to %pM status_code=%d\n", 3783 peer, status_code); 3784 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3785 dialog_token, status_code, 3786 extra_ies, extra_ies_len); 3787 break; 3788 case WLAN_TDLS_SETUP_CONFIRM: 3789 mwifiex_dbg(priv->adapter, MSG, 3790 "Send TDLS Confirm to %pM status_code=%d\n", peer, 3791 status_code); 3792 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3793 dialog_token, status_code, 3794 extra_ies, extra_ies_len); 3795 break; 3796 case WLAN_TDLS_TEARDOWN: 3797 mwifiex_dbg(priv->adapter, MSG, 3798 "Send TDLS Tear down to %pM\n", peer); 3799 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3800 dialog_token, status_code, 3801 extra_ies, extra_ies_len); 3802 break; 3803 case WLAN_TDLS_DISCOVERY_REQUEST: 3804 mwifiex_dbg(priv->adapter, MSG, 3805 "Send TDLS Discovery Request to %pM\n", peer); 3806 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3807 dialog_token, status_code, 3808 extra_ies, extra_ies_len); 3809 break; 3810 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: 3811 mwifiex_dbg(priv->adapter, MSG, 3812 "Send TDLS Discovery Response to %pM\n", peer); 3813 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code, 3814 dialog_token, status_code, 3815 extra_ies, extra_ies_len); 3816 break; 3817 default: 3818 mwifiex_dbg(priv->adapter, ERROR, 3819 "Unknown TDLS mgmt/action frame %pM\n", peer); 3820 ret = -EINVAL; 3821 break; 3822 } 3823 3824 return ret; 3825 } 3826 3827 static int 3828 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 3829 const u8 *peer, enum nl80211_tdls_operation action) 3830 { 3831 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3832 3833 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) || 3834 !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)) 3835 return -EOPNOTSUPP; 3836 3837 /* make sure we are in station mode and connected */ 3838 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected)) 3839 return -EOPNOTSUPP; 3840 3841 mwifiex_dbg(priv->adapter, MSG, 3842 "TDLS peer=%pM, oper=%d\n", peer, action); 3843 3844 switch (action) { 3845 case NL80211_TDLS_ENABLE_LINK: 3846 action = MWIFIEX_TDLS_ENABLE_LINK; 3847 break; 3848 case NL80211_TDLS_DISABLE_LINK: 3849 action = MWIFIEX_TDLS_DISABLE_LINK; 3850 break; 3851 case NL80211_TDLS_TEARDOWN: 3852 /* shouldn't happen!*/ 3853 mwifiex_dbg(priv->adapter, ERROR, 3854 "tdls_oper: teardown from driver not supported\n"); 3855 return -EINVAL; 3856 case NL80211_TDLS_SETUP: 3857 /* shouldn't happen!*/ 3858 mwifiex_dbg(priv->adapter, ERROR, 3859 "tdls_oper: setup from driver not supported\n"); 3860 return -EINVAL; 3861 case NL80211_TDLS_DISCOVERY_REQ: 3862 /* shouldn't happen!*/ 3863 mwifiex_dbg(priv->adapter, ERROR, 3864 "tdls_oper: discovery from driver not supported\n"); 3865 return -EINVAL; 3866 default: 3867 mwifiex_dbg(priv->adapter, ERROR, 3868 "tdls_oper: operation not supported\n"); 3869 return -EOPNOTSUPP; 3870 } 3871 3872 return mwifiex_tdls_oper(priv, peer, action); 3873 } 3874 3875 static int 3876 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev, 3877 const u8 *addr, u8 oper_class, 3878 struct cfg80211_chan_def *chandef) 3879 { 3880 struct mwifiex_sta_node *sta_ptr; 3881 u16 chan; 3882 u8 second_chan_offset, band; 3883 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3884 3885 spin_lock_bh(&priv->sta_list_spinlock); 3886 sta_ptr = mwifiex_get_sta_entry(priv, addr); 3887 if (!sta_ptr) { 3888 spin_unlock_bh(&priv->sta_list_spinlock); 3889 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n", 3890 __func__, addr); 3891 return -ENOENT; 3892 } 3893 3894 if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] & 3895 WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) { 3896 spin_unlock_bh(&priv->sta_list_spinlock); 3897 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr); 3898 return -ENOENT; 3899 } 3900 3901 if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING || 3902 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) { 3903 spin_unlock_bh(&priv->sta_list_spinlock); 3904 wiphy_err(wiphy, "channel switch is running, abort request\n"); 3905 return -EALREADY; 3906 } 3907 spin_unlock_bh(&priv->sta_list_spinlock); 3908 3909 chan = chandef->chan->hw_value; 3910 second_chan_offset = mwifiex_get_sec_chan_offset(chan); 3911 band = chandef->chan->band; 3912 mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band); 3913 3914 return 0; 3915 } 3916 3917 static void 3918 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy, 3919 struct net_device *dev, 3920 const u8 *addr) 3921 { 3922 struct mwifiex_sta_node *sta_ptr; 3923 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3924 3925 spin_lock_bh(&priv->sta_list_spinlock); 3926 sta_ptr = mwifiex_get_sta_entry(priv, addr); 3927 if (!sta_ptr) { 3928 spin_unlock_bh(&priv->sta_list_spinlock); 3929 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n", 3930 __func__, addr); 3931 } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING || 3932 sta_ptr->tdls_status == TDLS_IN_BASE_CHAN || 3933 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) { 3934 spin_unlock_bh(&priv->sta_list_spinlock); 3935 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n", 3936 addr); 3937 } else { 3938 spin_unlock_bh(&priv->sta_list_spinlock); 3939 mwifiex_stop_tdls_cs(priv, addr); 3940 } 3941 } 3942 3943 static int 3944 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev, 3945 const u8 *mac, struct station_parameters *params) 3946 { 3947 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3948 3949 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) 3950 return -EOPNOTSUPP; 3951 3952 /* make sure we are in station mode and connected */ 3953 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected) 3954 return -EOPNOTSUPP; 3955 3956 return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK); 3957 } 3958 3959 static int 3960 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3961 struct cfg80211_csa_settings *params) 3962 { 3963 struct ieee_types_header *chsw_ie; 3964 struct ieee80211_channel_sw_ie *channel_sw; 3965 int chsw_msec; 3966 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3967 3968 if (priv->adapter->scan_processing) { 3969 mwifiex_dbg(priv->adapter, ERROR, 3970 "radar detection: scan in process...\n"); 3971 return -EBUSY; 3972 } 3973 3974 if (priv->wdev.cac_started) 3975 return -EBUSY; 3976 3977 if (cfg80211_chandef_identical(¶ms->chandef, 3978 &priv->dfs_chandef)) 3979 return -EINVAL; 3980 3981 chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH, 3982 params->beacon_csa.tail, 3983 params->beacon_csa.tail_len); 3984 if (!chsw_ie) { 3985 mwifiex_dbg(priv->adapter, ERROR, 3986 "Could not parse channel switch announcement IE\n"); 3987 return -EINVAL; 3988 } 3989 3990 channel_sw = (void *)(chsw_ie + 1); 3991 if (channel_sw->mode) { 3992 if (netif_carrier_ok(priv->netdev)) 3993 netif_carrier_off(priv->netdev); 3994 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter); 3995 } 3996 3997 if (mwifiex_del_mgmt_ies(priv)) 3998 mwifiex_dbg(priv->adapter, ERROR, 3999 "Failed to delete mgmt IEs!\n"); 4000 4001 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon_csa)) { 4002 mwifiex_dbg(priv->adapter, ERROR, 4003 "%s: setting mgmt ies failed\n", __func__); 4004 return -EFAULT; 4005 } 4006 4007 memcpy(&priv->dfs_chandef, ¶ms->chandef, sizeof(priv->dfs_chandef)); 4008 memcpy(&priv->beacon_after, ¶ms->beacon_after, 4009 sizeof(priv->beacon_after)); 4010 4011 chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100); 4012 queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work, 4013 msecs_to_jiffies(chsw_msec)); 4014 return 0; 4015 } 4016 4017 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy, 4018 struct wireless_dev *wdev, 4019 unsigned int link_id, 4020 struct cfg80211_chan_def *chandef) 4021 { 4022 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 4023 struct mwifiex_bssdescriptor *curr_bss; 4024 struct ieee80211_channel *chan; 4025 enum nl80211_channel_type chan_type; 4026 enum nl80211_band band; 4027 int freq; 4028 int ret = -ENODATA; 4029 4030 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP && 4031 cfg80211_chandef_valid(&priv->bss_chandef)) { 4032 *chandef = priv->bss_chandef; 4033 ret = 0; 4034 } else if (priv->media_connected) { 4035 curr_bss = &priv->curr_bss_params.bss_descriptor; 4036 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 4037 freq = ieee80211_channel_to_frequency(curr_bss->channel, band); 4038 chan = ieee80211_get_channel(wiphy, freq); 4039 4040 if (priv->ht_param_present) { 4041 chan_type = mwifiex_get_chan_type(priv); 4042 cfg80211_chandef_create(chandef, chan, chan_type); 4043 } else { 4044 cfg80211_chandef_create(chandef, chan, 4045 NL80211_CHAN_NO_HT); 4046 } 4047 ret = 0; 4048 } 4049 4050 return ret; 4051 } 4052 4053 #ifdef CONFIG_NL80211_TESTMODE 4054 4055 enum mwifiex_tm_attr { 4056 __MWIFIEX_TM_ATTR_INVALID = 0, 4057 MWIFIEX_TM_ATTR_CMD = 1, 4058 MWIFIEX_TM_ATTR_DATA = 2, 4059 4060 /* keep last */ 4061 __MWIFIEX_TM_ATTR_AFTER_LAST, 4062 MWIFIEX_TM_ATTR_MAX = __MWIFIEX_TM_ATTR_AFTER_LAST - 1, 4063 }; 4064 4065 static const struct nla_policy mwifiex_tm_policy[MWIFIEX_TM_ATTR_MAX + 1] = { 4066 [MWIFIEX_TM_ATTR_CMD] = { .type = NLA_U32 }, 4067 [MWIFIEX_TM_ATTR_DATA] = { .type = NLA_BINARY, 4068 .len = MWIFIEX_SIZE_OF_CMD_BUFFER }, 4069 }; 4070 4071 enum mwifiex_tm_command { 4072 MWIFIEX_TM_CMD_HOSTCMD = 0, 4073 }; 4074 4075 static int mwifiex_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev, 4076 void *data, int len) 4077 { 4078 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 4079 struct mwifiex_ds_misc_cmd *hostcmd; 4080 struct nlattr *tb[MWIFIEX_TM_ATTR_MAX + 1]; 4081 struct sk_buff *skb; 4082 int err; 4083 4084 if (!priv) 4085 return -EINVAL; 4086 4087 err = nla_parse_deprecated(tb, MWIFIEX_TM_ATTR_MAX, data, len, 4088 mwifiex_tm_policy, NULL); 4089 if (err) 4090 return err; 4091 4092 if (!tb[MWIFIEX_TM_ATTR_CMD]) 4093 return -EINVAL; 4094 4095 switch (nla_get_u32(tb[MWIFIEX_TM_ATTR_CMD])) { 4096 case MWIFIEX_TM_CMD_HOSTCMD: 4097 if (!tb[MWIFIEX_TM_ATTR_DATA]) 4098 return -EINVAL; 4099 4100 hostcmd = kzalloc(sizeof(*hostcmd), GFP_KERNEL); 4101 if (!hostcmd) 4102 return -ENOMEM; 4103 4104 hostcmd->len = nla_len(tb[MWIFIEX_TM_ATTR_DATA]); 4105 memcpy(hostcmd->cmd, nla_data(tb[MWIFIEX_TM_ATTR_DATA]), 4106 hostcmd->len); 4107 4108 if (mwifiex_send_cmd(priv, 0, 0, 0, hostcmd, true)) { 4109 dev_err(priv->adapter->dev, "Failed to process hostcmd\n"); 4110 kfree(hostcmd); 4111 return -EFAULT; 4112 } 4113 4114 /* process hostcmd response*/ 4115 skb = cfg80211_testmode_alloc_reply_skb(wiphy, hostcmd->len); 4116 if (!skb) { 4117 kfree(hostcmd); 4118 return -ENOMEM; 4119 } 4120 err = nla_put(skb, MWIFIEX_TM_ATTR_DATA, 4121 hostcmd->len, hostcmd->cmd); 4122 if (err) { 4123 kfree(hostcmd); 4124 kfree_skb(skb); 4125 return -EMSGSIZE; 4126 } 4127 4128 err = cfg80211_testmode_reply(skb); 4129 kfree(hostcmd); 4130 return err; 4131 default: 4132 return -EOPNOTSUPP; 4133 } 4134 } 4135 #endif 4136 4137 static int 4138 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy, 4139 struct net_device *dev, 4140 struct cfg80211_chan_def *chandef, 4141 u32 cac_time_ms) 4142 { 4143 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 4144 struct mwifiex_radar_params radar_params; 4145 4146 if (priv->adapter->scan_processing) { 4147 mwifiex_dbg(priv->adapter, ERROR, 4148 "radar detection: scan already in process...\n"); 4149 return -EBUSY; 4150 } 4151 4152 if (!mwifiex_is_11h_active(priv)) { 4153 mwifiex_dbg(priv->adapter, INFO, 4154 "Enable 11h extensions in FW\n"); 4155 if (mwifiex_11h_activate(priv, true)) { 4156 mwifiex_dbg(priv->adapter, ERROR, 4157 "Failed to activate 11h extensions!!"); 4158 return -1; 4159 } 4160 priv->state_11h.is_11h_active = true; 4161 } 4162 4163 memset(&radar_params, 0, sizeof(struct mwifiex_radar_params)); 4164 radar_params.chandef = chandef; 4165 radar_params.cac_time_ms = cac_time_ms; 4166 4167 memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef)); 4168 4169 if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST, 4170 HostCmd_ACT_GEN_SET, 0, &radar_params, true)) 4171 return -1; 4172 4173 queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work, 4174 msecs_to_jiffies(cac_time_ms)); 4175 return 0; 4176 } 4177 4178 static int 4179 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev, 4180 const u8 *mac, 4181 struct station_parameters *params) 4182 { 4183 int ret; 4184 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 4185 4186 /* we support change_station handler only for TDLS peers*/ 4187 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) 4188 return -EOPNOTSUPP; 4189 4190 /* make sure we are in station mode and connected */ 4191 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected) 4192 return -EOPNOTSUPP; 4193 4194 priv->sta_params = params; 4195 4196 ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK); 4197 priv->sta_params = NULL; 4198 4199 return ret; 4200 } 4201 4202 /* station cfg80211 operations */ 4203 static struct cfg80211_ops mwifiex_cfg80211_ops = { 4204 .add_virtual_intf = mwifiex_add_virtual_intf, 4205 .del_virtual_intf = mwifiex_del_virtual_intf, 4206 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf, 4207 .scan = mwifiex_cfg80211_scan, 4208 .connect = mwifiex_cfg80211_connect, 4209 .disconnect = mwifiex_cfg80211_disconnect, 4210 .get_station = mwifiex_cfg80211_get_station, 4211 .dump_station = mwifiex_cfg80211_dump_station, 4212 .dump_survey = mwifiex_cfg80211_dump_survey, 4213 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params, 4214 .join_ibss = mwifiex_cfg80211_join_ibss, 4215 .leave_ibss = mwifiex_cfg80211_leave_ibss, 4216 .add_key = mwifiex_cfg80211_add_key, 4217 .del_key = mwifiex_cfg80211_del_key, 4218 .set_default_mgmt_key = mwifiex_cfg80211_set_default_mgmt_key, 4219 .mgmt_tx = mwifiex_cfg80211_mgmt_tx, 4220 .update_mgmt_frame_registrations = 4221 mwifiex_cfg80211_update_mgmt_frame_registrations, 4222 .remain_on_channel = mwifiex_cfg80211_remain_on_channel, 4223 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel, 4224 .set_default_key = mwifiex_cfg80211_set_default_key, 4225 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt, 4226 .set_tx_power = mwifiex_cfg80211_set_tx_power, 4227 .get_tx_power = mwifiex_cfg80211_get_tx_power, 4228 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask, 4229 .start_ap = mwifiex_cfg80211_start_ap, 4230 .stop_ap = mwifiex_cfg80211_stop_ap, 4231 .change_beacon = mwifiex_cfg80211_change_beacon, 4232 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config, 4233 .set_antenna = mwifiex_cfg80211_set_antenna, 4234 .get_antenna = mwifiex_cfg80211_get_antenna, 4235 .del_station = mwifiex_cfg80211_del_station, 4236 .sched_scan_start = mwifiex_cfg80211_sched_scan_start, 4237 .sched_scan_stop = mwifiex_cfg80211_sched_scan_stop, 4238 #ifdef CONFIG_PM 4239 .suspend = mwifiex_cfg80211_suspend, 4240 .resume = mwifiex_cfg80211_resume, 4241 .set_wakeup = mwifiex_cfg80211_set_wakeup, 4242 .set_rekey_data = mwifiex_set_rekey_data, 4243 #endif 4244 .set_coalesce = mwifiex_cfg80211_set_coalesce, 4245 .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt, 4246 .tdls_oper = mwifiex_cfg80211_tdls_oper, 4247 .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch, 4248 .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch, 4249 .add_station = mwifiex_cfg80211_add_station, 4250 .change_station = mwifiex_cfg80211_change_station, 4251 CFG80211_TESTMODE_CMD(mwifiex_tm_cmd) 4252 .get_channel = mwifiex_cfg80211_get_channel, 4253 .start_radar_detection = mwifiex_cfg80211_start_radar_detection, 4254 .channel_switch = mwifiex_cfg80211_channel_switch, 4255 }; 4256 4257 #ifdef CONFIG_PM 4258 static const struct wiphy_wowlan_support mwifiex_wowlan_support = { 4259 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT | 4260 WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 4261 WIPHY_WOWLAN_GTK_REKEY_FAILURE, 4262 .n_patterns = MWIFIEX_MEF_MAX_FILTERS, 4263 .pattern_min_len = 1, 4264 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4265 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4266 .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS, 4267 }; 4268 4269 static const struct wiphy_wowlan_support mwifiex_wowlan_support_no_gtk = { 4270 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT | 4271 WIPHY_WOWLAN_NET_DETECT, 4272 .n_patterns = MWIFIEX_MEF_MAX_FILTERS, 4273 .pattern_min_len = 1, 4274 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4275 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4276 .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS, 4277 }; 4278 #endif 4279 4280 static bool mwifiex_is_valid_alpha2(const char *alpha2) 4281 { 4282 if (!alpha2 || strlen(alpha2) != 2) 4283 return false; 4284 4285 if (isalpha(alpha2[0]) && isalpha(alpha2[1])) 4286 return true; 4287 4288 return false; 4289 } 4290 4291 static const struct wiphy_coalesce_support mwifiex_coalesce_support = { 4292 .n_rules = MWIFIEX_COALESCE_MAX_RULES, 4293 .max_delay = MWIFIEX_MAX_COALESCING_DELAY, 4294 .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS, 4295 .pattern_min_len = 1, 4296 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4297 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4298 }; 4299 4300 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter) 4301 { 4302 u32 n_channels_bg, n_channels_a = 0; 4303 4304 n_channels_bg = mwifiex_band_2ghz.n_channels; 4305 4306 if (adapter->config_bands & BAND_A) 4307 n_channels_a = mwifiex_band_5ghz.n_channels; 4308 4309 /* allocate twice the number total channels, since the driver issues an 4310 * additional active scan request for hidden SSIDs on passive channels. 4311 */ 4312 adapter->num_in_chan_stats = 2 * (n_channels_bg + n_channels_a); 4313 adapter->chan_stats = vmalloc(array_size(sizeof(*adapter->chan_stats), 4314 adapter->num_in_chan_stats)); 4315 4316 if (!adapter->chan_stats) 4317 return -ENOMEM; 4318 4319 return 0; 4320 } 4321 4322 /* 4323 * This function registers the device with CFG802.11 subsystem. 4324 * 4325 * The function creates the wireless device/wiphy, populates it with 4326 * default parameters and handler function pointers, and finally 4327 * registers the device. 4328 */ 4329 4330 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter) 4331 { 4332 int ret; 4333 void *wdev_priv; 4334 struct wiphy *wiphy; 4335 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA]; 4336 u8 *country_code; 4337 u32 thr, retry; 4338 4339 /* create a new wiphy for use with cfg80211 */ 4340 wiphy = wiphy_new(&mwifiex_cfg80211_ops, 4341 sizeof(struct mwifiex_adapter *)); 4342 if (!wiphy) { 4343 mwifiex_dbg(adapter, ERROR, 4344 "%s: creating new wiphy\n", __func__); 4345 return -ENOMEM; 4346 } 4347 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH; 4348 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN; 4349 wiphy->mgmt_stypes = mwifiex_mgmt_stypes; 4350 wiphy->max_remain_on_channel_duration = 5000; 4351 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 4352 BIT(NL80211_IFTYPE_P2P_CLIENT) | 4353 BIT(NL80211_IFTYPE_P2P_GO) | 4354 BIT(NL80211_IFTYPE_AP); 4355 4356 if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info)) 4357 wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC); 4358 4359 wiphy->bands[NL80211_BAND_2GHZ] = &mwifiex_band_2ghz; 4360 if (adapter->config_bands & BAND_A) 4361 wiphy->bands[NL80211_BAND_5GHZ] = &mwifiex_band_5ghz; 4362 else 4363 wiphy->bands[NL80211_BAND_5GHZ] = NULL; 4364 4365 if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info)) 4366 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs; 4367 else if (adapter->is_hw_11ac_capable) 4368 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht; 4369 else 4370 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta; 4371 wiphy->n_iface_combinations = 1; 4372 4373 if (adapter->max_sta_conn > adapter->max_p2p_conn) 4374 wiphy->max_ap_assoc_sta = adapter->max_sta_conn; 4375 else 4376 wiphy->max_ap_assoc_sta = adapter->max_p2p_conn; 4377 4378 /* Initialize cipher suits */ 4379 wiphy->cipher_suites = mwifiex_cipher_suites; 4380 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites); 4381 4382 if (adapter->regd) { 4383 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 4384 REGULATORY_DISABLE_BEACON_HINTS | 4385 REGULATORY_COUNTRY_IE_IGNORE; 4386 wiphy_apply_custom_regulatory(wiphy, adapter->regd); 4387 } 4388 4389 ether_addr_copy(wiphy->perm_addr, adapter->perm_addr); 4390 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 4391 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | 4392 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | 4393 WIPHY_FLAG_AP_UAPSD | 4394 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | 4395 WIPHY_FLAG_HAS_CHANNEL_SWITCH | 4396 WIPHY_FLAG_PS_ON_BY_DEFAULT; 4397 4398 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info)) 4399 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS | 4400 WIPHY_FLAG_TDLS_EXTERNAL_SETUP; 4401 4402 #ifdef CONFIG_PM 4403 if (ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info)) 4404 wiphy->wowlan = &mwifiex_wowlan_support; 4405 else 4406 wiphy->wowlan = &mwifiex_wowlan_support_no_gtk; 4407 #endif 4408 4409 wiphy->coalesce = &mwifiex_coalesce_support; 4410 4411 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 4412 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 4413 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; 4414 4415 wiphy->max_sched_scan_reqs = 1; 4416 wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH; 4417 wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN; 4418 wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH; 4419 4420 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1; 4421 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1; 4422 4423 wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER | 4424 NL80211_FEATURE_LOW_PRIORITY_SCAN | 4425 NL80211_FEATURE_NEED_OBSS_SCAN; 4426 4427 if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info)) 4428 wiphy->features |= NL80211_FEATURE_HT_IBSS; 4429 4430 if (ISSUPP_RANDOM_MAC(adapter->fw_cap_info)) 4431 wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 4432 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 4433 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 4434 4435 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info)) 4436 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 4437 4438 if (adapter->fw_api_ver == MWIFIEX_FW_V15) 4439 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS; 4440 4441 /* Reserve space for mwifiex specific private data for BSS */ 4442 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv); 4443 4444 wiphy->reg_notifier = mwifiex_reg_notifier; 4445 4446 /* Set struct mwifiex_adapter pointer in wiphy_priv */ 4447 wdev_priv = wiphy_priv(wiphy); 4448 *(unsigned long *)wdev_priv = (unsigned long)adapter; 4449 4450 set_wiphy_dev(wiphy, priv->adapter->dev); 4451 4452 ret = wiphy_register(wiphy); 4453 if (ret < 0) { 4454 mwifiex_dbg(adapter, ERROR, 4455 "%s: wiphy_register failed: %d\n", __func__, ret); 4456 wiphy_free(wiphy); 4457 return ret; 4458 } 4459 4460 if (!adapter->regd) { 4461 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) { 4462 mwifiex_dbg(adapter, INFO, 4463 "driver hint alpha2: %2.2s\n", reg_alpha2); 4464 regulatory_hint(wiphy, reg_alpha2); 4465 } else { 4466 if (adapter->region_code == 0x00) { 4467 mwifiex_dbg(adapter, WARN, 4468 "Ignore world regulatory domain\n"); 4469 } else { 4470 wiphy->regulatory_flags |= 4471 REGULATORY_DISABLE_BEACON_HINTS | 4472 REGULATORY_COUNTRY_IE_IGNORE; 4473 country_code = 4474 mwifiex_11d_code_2_region( 4475 adapter->region_code); 4476 if (country_code && 4477 regulatory_hint(wiphy, country_code)) 4478 mwifiex_dbg(priv->adapter, ERROR, 4479 "regulatory_hint() failed\n"); 4480 } 4481 } 4482 } 4483 4484 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4485 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true); 4486 wiphy->frag_threshold = thr; 4487 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4488 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true); 4489 wiphy->rts_threshold = thr; 4490 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4491 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true); 4492 wiphy->retry_short = (u8) retry; 4493 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4494 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true); 4495 wiphy->retry_long = (u8) retry; 4496 4497 adapter->wiphy = wiphy; 4498 return ret; 4499 } 4500