1 /* 2 * NXP Wireless LAN device driver: CFG80211 3 * 4 * Copyright 2011-2020 NXP 5 * 6 * This software file (the "File") is distributed by NXP 7 * under the terms of the GNU General Public License Version 2, June 1991 8 * (the "License"). You may use, redistribute and/or modify this File in 9 * accordance with the terms and conditions of the License, a copy of which 10 * is available by writing to the Free Software Foundation, Inc., 11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the 12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. 13 * 14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE 16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about 17 * this warranty disclaimer. 18 */ 19 20 #include "cfg80211.h" 21 #include "main.h" 22 #include "11n.h" 23 #include "wmm.h" 24 25 static char *reg_alpha2; 26 module_param(reg_alpha2, charp, 0); 27 28 static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = { 29 { 30 .max = MWIFIEX_MAX_BSS_NUM, 31 .types = BIT(NL80211_IFTYPE_STATION) | 32 BIT(NL80211_IFTYPE_P2P_GO) | 33 BIT(NL80211_IFTYPE_P2P_CLIENT) | 34 BIT(NL80211_IFTYPE_AP), 35 }, 36 }; 37 38 static const struct ieee80211_iface_combination 39 mwifiex_iface_comb_ap_sta = { 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 }; 49 50 static const struct ieee80211_iface_combination 51 mwifiex_iface_comb_ap_sta_vht = { 52 .limits = mwifiex_ap_sta_limits, 53 .num_different_channels = 1, 54 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits), 55 .max_interfaces = MWIFIEX_MAX_BSS_NUM, 56 .beacon_int_infra_match = true, 57 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 58 BIT(NL80211_CHAN_WIDTH_20) | 59 BIT(NL80211_CHAN_WIDTH_40) | 60 BIT(NL80211_CHAN_WIDTH_80), 61 }; 62 63 static const struct 64 ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = { 65 .limits = mwifiex_ap_sta_limits, 66 .num_different_channels = 2, 67 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits), 68 .max_interfaces = MWIFIEX_MAX_BSS_NUM, 69 .beacon_int_infra_match = true, 70 }; 71 72 /* 73 * This function maps the nl802.11 channel type into driver channel type. 74 * 75 * The mapping is as follows - 76 * NL80211_CHAN_NO_HT -> IEEE80211_HT_PARAM_CHA_SEC_NONE 77 * NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE 78 * NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE 79 * NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW 80 * Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE 81 */ 82 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type) 83 { 84 switch (chan_type) { 85 case NL80211_CHAN_NO_HT: 86 case NL80211_CHAN_HT20: 87 return IEEE80211_HT_PARAM_CHA_SEC_NONE; 88 case NL80211_CHAN_HT40PLUS: 89 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE; 90 case NL80211_CHAN_HT40MINUS: 91 return IEEE80211_HT_PARAM_CHA_SEC_BELOW; 92 default: 93 return IEEE80211_HT_PARAM_CHA_SEC_NONE; 94 } 95 } 96 97 /* This function maps IEEE HT secondary channel type to NL80211 channel type 98 */ 99 u8 mwifiex_get_chan_type(struct mwifiex_private *priv) 100 { 101 struct mwifiex_channel_band channel_band; 102 int ret; 103 104 ret = mwifiex_get_chan_info(priv, &channel_band); 105 106 if (!ret) { 107 switch (channel_band.band_config.chan_width) { 108 case CHAN_BW_20MHZ: 109 if (IS_11N_ENABLED(priv)) 110 return NL80211_CHAN_HT20; 111 else 112 return NL80211_CHAN_NO_HT; 113 case CHAN_BW_40MHZ: 114 if (channel_band.band_config.chan2_offset == 115 SEC_CHAN_ABOVE) 116 return NL80211_CHAN_HT40PLUS; 117 else 118 return NL80211_CHAN_HT40MINUS; 119 default: 120 return NL80211_CHAN_HT20; 121 } 122 } 123 124 return NL80211_CHAN_HT20; 125 } 126 127 /* 128 * This function checks whether WEP is set. 129 */ 130 static int 131 mwifiex_is_alg_wep(u32 cipher) 132 { 133 switch (cipher) { 134 case WLAN_CIPHER_SUITE_WEP40: 135 case WLAN_CIPHER_SUITE_WEP104: 136 return 1; 137 default: 138 break; 139 } 140 141 return 0; 142 } 143 144 /* 145 * This function retrieves the private structure from kernel wiphy structure. 146 */ 147 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy) 148 { 149 return (void *) (*(unsigned long *) wiphy_priv(wiphy)); 150 } 151 152 /* 153 * CFG802.11 operation handler to delete a network key. 154 */ 155 static int 156 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev, 157 u8 key_index, bool pairwise, const u8 *mac_addr) 158 { 159 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev); 160 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 161 const u8 *peer_mac = pairwise ? mac_addr : bc_mac; 162 163 if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) { 164 mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n"); 165 return -EFAULT; 166 } 167 168 mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n"); 169 return 0; 170 } 171 172 /* 173 * This function forms an skb for management frame. 174 */ 175 static int 176 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len) 177 { 178 u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; 179 u16 pkt_len; 180 u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT; 181 182 pkt_len = len + ETH_ALEN; 183 184 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN + 185 MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len)); 186 memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len)); 187 188 memcpy(skb_push(skb, sizeof(tx_control)), 189 &tx_control, sizeof(tx_control)); 190 191 memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type)); 192 193 /* Add packet data and address4 */ 194 skb_put_data(skb, buf, sizeof(struct ieee80211_hdr_3addr)); 195 skb_put_data(skb, addr, ETH_ALEN); 196 skb_put_data(skb, buf + sizeof(struct ieee80211_hdr_3addr), 197 len - sizeof(struct ieee80211_hdr_3addr)); 198 199 skb->priority = LOW_PRIO_TID; 200 __net_timestamp(skb); 201 202 return 0; 203 } 204 205 /* 206 * CFG802.11 operation handler to transmit a management frame. 207 */ 208 static int 209 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 210 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 211 { 212 const u8 *buf = params->buf; 213 size_t len = params->len; 214 struct sk_buff *skb; 215 u16 pkt_len; 216 const struct ieee80211_mgmt *mgmt; 217 struct mwifiex_txinfo *tx_info; 218 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 219 220 if (!buf || !len) { 221 mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n"); 222 return -EFAULT; 223 } 224 225 mgmt = (const struct ieee80211_mgmt *)buf; 226 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA && 227 ieee80211_is_probe_resp(mgmt->frame_control)) { 228 /* Since we support offload probe resp, we need to skip probe 229 * resp in AP or GO mode */ 230 mwifiex_dbg(priv->adapter, INFO, 231 "info: skip to send probe resp in AP or GO mode\n"); 232 return 0; 233 } 234 235 pkt_len = len + ETH_ALEN; 236 skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN + 237 MWIFIEX_MGMT_FRAME_HEADER_SIZE + 238 pkt_len + sizeof(pkt_len)); 239 240 if (!skb) { 241 mwifiex_dbg(priv->adapter, ERROR, 242 "allocate skb failed for management frame\n"); 243 return -ENOMEM; 244 } 245 246 tx_info = MWIFIEX_SKB_TXCB(skb); 247 memset(tx_info, 0, sizeof(*tx_info)); 248 tx_info->bss_num = priv->bss_num; 249 tx_info->bss_type = priv->bss_type; 250 tx_info->pkt_len = pkt_len; 251 252 mwifiex_form_mgmt_frame(skb, buf, len); 253 *cookie = prandom_u32() | 1; 254 255 if (ieee80211_is_action(mgmt->frame_control)) 256 skb = mwifiex_clone_skb_for_tx_status(priv, 257 skb, 258 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie); 259 else 260 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, 261 GFP_ATOMIC); 262 263 mwifiex_queue_tx_pkt(priv, skb); 264 265 mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n"); 266 return 0; 267 } 268 269 /* 270 * CFG802.11 operation handler to register a mgmt frame. 271 */ 272 static void 273 mwifiex_cfg80211_update_mgmt_frame_registrations(struct wiphy *wiphy, 274 struct wireless_dev *wdev, 275 struct mgmt_frame_regs *upd) 276 { 277 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 278 u32 mask = upd->interface_stypes; 279 280 if (mask != priv->mgmt_frame_mask) { 281 priv->mgmt_frame_mask = mask; 282 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG, 283 HostCmd_ACT_GEN_SET, 0, 284 &priv->mgmt_frame_mask, false); 285 mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n"); 286 } 287 } 288 289 /* 290 * CFG802.11 operation handler to remain on channel. 291 */ 292 static int 293 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy, 294 struct wireless_dev *wdev, 295 struct ieee80211_channel *chan, 296 unsigned int duration, u64 *cookie) 297 { 298 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 299 int ret; 300 301 if (!chan || !cookie) { 302 mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n"); 303 return -EINVAL; 304 } 305 306 if (priv->roc_cfg.cookie) { 307 mwifiex_dbg(priv->adapter, INFO, 308 "info: ongoing ROC, cookie = 0x%llx\n", 309 priv->roc_cfg.cookie); 310 return -EBUSY; 311 } 312 313 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan, 314 duration); 315 316 if (!ret) { 317 *cookie = prandom_u32() | 1; 318 priv->roc_cfg.cookie = *cookie; 319 priv->roc_cfg.chan = *chan; 320 321 cfg80211_ready_on_channel(wdev, *cookie, chan, 322 duration, GFP_ATOMIC); 323 324 mwifiex_dbg(priv->adapter, INFO, 325 "info: ROC, cookie = 0x%llx\n", *cookie); 326 } 327 328 return ret; 329 } 330 331 /* 332 * CFG802.11 operation handler to cancel remain on channel. 333 */ 334 static int 335 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy, 336 struct wireless_dev *wdev, u64 cookie) 337 { 338 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 339 int ret; 340 341 if (cookie != priv->roc_cfg.cookie) 342 return -ENOENT; 343 344 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE, 345 &priv->roc_cfg.chan, 0); 346 347 if (!ret) { 348 cfg80211_remain_on_channel_expired(wdev, cookie, 349 &priv->roc_cfg.chan, 350 GFP_ATOMIC); 351 352 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg)); 353 354 mwifiex_dbg(priv->adapter, INFO, 355 "info: cancel ROC, cookie = 0x%llx\n", cookie); 356 } 357 358 return ret; 359 } 360 361 /* 362 * CFG802.11 operation handler to set Tx power. 363 */ 364 static int 365 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy, 366 struct wireless_dev *wdev, 367 enum nl80211_tx_power_setting type, 368 int mbm) 369 { 370 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 371 struct mwifiex_private *priv; 372 struct mwifiex_power_cfg power_cfg; 373 int dbm = MBM_TO_DBM(mbm); 374 375 switch (type) { 376 case NL80211_TX_POWER_FIXED: 377 power_cfg.is_power_auto = 0; 378 power_cfg.is_power_fixed = 1; 379 power_cfg.power_level = dbm; 380 break; 381 case NL80211_TX_POWER_LIMITED: 382 power_cfg.is_power_auto = 0; 383 power_cfg.is_power_fixed = 0; 384 power_cfg.power_level = dbm; 385 break; 386 case NL80211_TX_POWER_AUTOMATIC: 387 power_cfg.is_power_auto = 1; 388 break; 389 } 390 391 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 392 393 return mwifiex_set_tx_power(priv, &power_cfg); 394 } 395 396 /* 397 * CFG802.11 operation handler to get Tx power. 398 */ 399 static int 400 mwifiex_cfg80211_get_tx_power(struct wiphy *wiphy, 401 struct wireless_dev *wdev, 402 int *dbm) 403 { 404 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 405 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 406 MWIFIEX_BSS_ROLE_ANY); 407 int ret = mwifiex_send_cmd(priv, HostCmd_CMD_RF_TX_PWR, 408 HostCmd_ACT_GEN_GET, 0, NULL, true); 409 410 if (ret < 0) 411 return ret; 412 413 /* tx_power_level is set in HostCmd_CMD_RF_TX_PWR command handler */ 414 *dbm = priv->tx_power_level; 415 416 return 0; 417 } 418 419 /* 420 * CFG802.11 operation handler to set Power Save option. 421 * 422 * The timeout value, if provided, is currently ignored. 423 */ 424 static int 425 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy, 426 struct net_device *dev, 427 bool enabled, int timeout) 428 { 429 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 430 u32 ps_mode; 431 432 if (timeout) 433 mwifiex_dbg(priv->adapter, INFO, 434 "info: ignore timeout value for IEEE Power Save\n"); 435 436 ps_mode = enabled; 437 438 return mwifiex_drv_set_power(priv, &ps_mode); 439 } 440 441 /* 442 * CFG802.11 operation handler to set the default network key. 443 */ 444 static int 445 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev, 446 u8 key_index, bool unicast, 447 bool multicast) 448 { 449 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev); 450 451 /* Return if WEP key not configured */ 452 if (!priv->sec_info.wep_enabled) 453 return 0; 454 455 if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) { 456 priv->wep_key_curr_index = key_index; 457 } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, 458 NULL, 0)) { 459 mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n"); 460 return -EFAULT; 461 } 462 463 return 0; 464 } 465 466 /* 467 * CFG802.11 operation handler to add a network key. 468 */ 469 static int 470 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev, 471 u8 key_index, bool pairwise, const u8 *mac_addr, 472 struct key_params *params) 473 { 474 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev); 475 struct mwifiex_wep_key *wep_key; 476 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 477 const u8 *peer_mac = pairwise ? mac_addr : bc_mac; 478 479 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP && 480 (params->cipher == WLAN_CIPHER_SUITE_WEP40 || 481 params->cipher == WLAN_CIPHER_SUITE_WEP104)) { 482 if (params->key && params->key_len) { 483 wep_key = &priv->wep_key[key_index]; 484 memset(wep_key, 0, sizeof(struct mwifiex_wep_key)); 485 memcpy(wep_key->key_material, params->key, 486 params->key_len); 487 wep_key->key_index = key_index; 488 wep_key->key_length = params->key_len; 489 priv->sec_info.wep_enabled = 1; 490 } 491 return 0; 492 } 493 494 if (mwifiex_set_encode(priv, params, params->key, params->key_len, 495 key_index, peer_mac, 0)) { 496 mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n"); 497 return -EFAULT; 498 } 499 500 return 0; 501 } 502 503 /* 504 * CFG802.11 operation handler to set default mgmt key. 505 */ 506 static int 507 mwifiex_cfg80211_set_default_mgmt_key(struct wiphy *wiphy, 508 struct net_device *netdev, 509 u8 key_index) 510 { 511 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev); 512 struct mwifiex_ds_encrypt_key encrypt_key; 513 514 wiphy_dbg(wiphy, "set default mgmt key, key index=%d\n", key_index); 515 516 memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key)); 517 encrypt_key.key_len = WLAN_KEY_LEN_CCMP; 518 encrypt_key.key_index = key_index; 519 encrypt_key.is_igtk_def_key = true; 520 eth_broadcast_addr(encrypt_key.mac_addr); 521 522 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, 523 HostCmd_ACT_GEN_SET, true, &encrypt_key, true)) { 524 mwifiex_dbg(priv->adapter, ERROR, 525 "Sending KEY_MATERIAL command failed\n"); 526 return -1; 527 } 528 529 return 0; 530 } 531 532 /* 533 * This function sends domain information to the firmware. 534 * 535 * The following information are passed to the firmware - 536 * - Country codes 537 * - Sub bands (first channel, number of channels, maximum Tx power) 538 */ 539 int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy) 540 { 541 u8 no_of_triplet = 0; 542 struct ieee80211_country_ie_triplet *t; 543 u8 no_of_parsed_chan = 0; 544 u8 first_chan = 0, next_chan = 0, max_pwr = 0; 545 u8 i, flag = 0; 546 enum nl80211_band band; 547 struct ieee80211_supported_band *sband; 548 struct ieee80211_channel *ch; 549 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 550 struct mwifiex_private *priv; 551 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg; 552 553 /* Set country code */ 554 domain_info->country_code[0] = adapter->country_code[0]; 555 domain_info->country_code[1] = adapter->country_code[1]; 556 domain_info->country_code[2] = ' '; 557 558 band = mwifiex_band_to_radio_type(adapter->config_bands); 559 if (!wiphy->bands[band]) { 560 mwifiex_dbg(adapter, ERROR, 561 "11D: setting domain info in FW\n"); 562 return -1; 563 } 564 565 sband = wiphy->bands[band]; 566 567 for (i = 0; i < sband->n_channels ; i++) { 568 ch = &sband->channels[i]; 569 if (ch->flags & IEEE80211_CHAN_DISABLED) 570 continue; 571 572 if (!flag) { 573 flag = 1; 574 first_chan = (u32) ch->hw_value; 575 next_chan = first_chan; 576 max_pwr = ch->max_power; 577 no_of_parsed_chan = 1; 578 continue; 579 } 580 581 if (ch->hw_value == next_chan + 1 && 582 ch->max_power == max_pwr) { 583 next_chan++; 584 no_of_parsed_chan++; 585 } else { 586 t = &domain_info->triplet[no_of_triplet]; 587 t->chans.first_channel = first_chan; 588 t->chans.num_channels = no_of_parsed_chan; 589 t->chans.max_power = max_pwr; 590 no_of_triplet++; 591 first_chan = (u32) ch->hw_value; 592 next_chan = first_chan; 593 max_pwr = ch->max_power; 594 no_of_parsed_chan = 1; 595 } 596 } 597 598 if (flag) { 599 t = &domain_info->triplet[no_of_triplet]; 600 t->chans.first_channel = first_chan; 601 t->chans.num_channels = no_of_parsed_chan; 602 t->chans.max_power = max_pwr; 603 no_of_triplet++; 604 } 605 606 domain_info->no_of_triplet = no_of_triplet; 607 608 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 609 610 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO, 611 HostCmd_ACT_GEN_SET, 0, NULL, false)) { 612 mwifiex_dbg(adapter, INFO, 613 "11D: setting domain info in FW\n"); 614 return -1; 615 } 616 617 return 0; 618 } 619 620 static void mwifiex_reg_apply_radar_flags(struct wiphy *wiphy) 621 { 622 struct ieee80211_supported_band *sband; 623 struct ieee80211_channel *chan; 624 unsigned int i; 625 626 if (!wiphy->bands[NL80211_BAND_5GHZ]) 627 return; 628 sband = wiphy->bands[NL80211_BAND_5GHZ]; 629 630 for (i = 0; i < sband->n_channels; i++) { 631 chan = &sband->channels[i]; 632 if ((!(chan->flags & IEEE80211_CHAN_DISABLED)) && 633 (chan->flags & IEEE80211_CHAN_RADAR)) 634 chan->flags |= IEEE80211_CHAN_NO_IR; 635 } 636 } 637 638 /* 639 * CFG802.11 regulatory domain callback function. 640 * 641 * This function is called when the regulatory domain is changed due to the 642 * following reasons - 643 * - Set by driver 644 * - Set by system core 645 * - Set by user 646 * - Set bt Country IE 647 */ 648 static void mwifiex_reg_notifier(struct wiphy *wiphy, 649 struct regulatory_request *request) 650 { 651 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 652 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 653 MWIFIEX_BSS_ROLE_ANY); 654 mwifiex_dbg(adapter, INFO, 655 "info: cfg80211 regulatory domain callback for %c%c\n", 656 request->alpha2[0], request->alpha2[1]); 657 mwifiex_reg_apply_radar_flags(wiphy); 658 659 switch (request->initiator) { 660 case NL80211_REGDOM_SET_BY_DRIVER: 661 case NL80211_REGDOM_SET_BY_CORE: 662 case NL80211_REGDOM_SET_BY_USER: 663 case NL80211_REGDOM_SET_BY_COUNTRY_IE: 664 break; 665 default: 666 mwifiex_dbg(adapter, ERROR, 667 "unknown regdom initiator: %d\n", 668 request->initiator); 669 return; 670 } 671 672 /* Don't send world or same regdom info to firmware */ 673 if (strncmp(request->alpha2, "00", 2) && 674 strncmp(request->alpha2, adapter->country_code, 675 sizeof(request->alpha2))) { 676 memcpy(adapter->country_code, request->alpha2, 677 sizeof(request->alpha2)); 678 mwifiex_send_domain_info_cmd_fw(wiphy); 679 mwifiex_dnld_txpwr_table(priv); 680 } 681 } 682 683 /* 684 * This function sets the fragmentation threshold. 685 * 686 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE 687 * and MWIFIEX_FRAG_MAX_VALUE. 688 */ 689 static int 690 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr) 691 { 692 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE || 693 frag_thr > MWIFIEX_FRAG_MAX_VALUE) 694 frag_thr = MWIFIEX_FRAG_MAX_VALUE; 695 696 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 697 HostCmd_ACT_GEN_SET, FRAG_THRESH_I, 698 &frag_thr, true); 699 } 700 701 /* 702 * This function sets the RTS threshold. 703 704 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE 705 * and MWIFIEX_RTS_MAX_VALUE. 706 */ 707 static int 708 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr) 709 { 710 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE) 711 rts_thr = MWIFIEX_RTS_MAX_VALUE; 712 713 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 714 HostCmd_ACT_GEN_SET, RTS_THRESH_I, 715 &rts_thr, true); 716 } 717 718 /* 719 * CFG802.11 operation handler to set wiphy parameters. 720 * 721 * This function can be used to set the RTS threshold and the 722 * Fragmentation threshold of the driver. 723 */ 724 static int 725 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 726 { 727 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 728 struct mwifiex_private *priv; 729 struct mwifiex_uap_bss_param *bss_cfg; 730 int ret; 731 732 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 733 734 switch (priv->bss_role) { 735 case MWIFIEX_BSS_ROLE_UAP: 736 if (priv->bss_started) { 737 mwifiex_dbg(adapter, ERROR, 738 "cannot change wiphy params when bss started"); 739 return -EINVAL; 740 } 741 742 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL); 743 if (!bss_cfg) 744 return -ENOMEM; 745 746 mwifiex_set_sys_config_invalid_data(bss_cfg); 747 748 if (changed & WIPHY_PARAM_RTS_THRESHOLD) 749 bss_cfg->rts_threshold = wiphy->rts_threshold; 750 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) 751 bss_cfg->frag_threshold = wiphy->frag_threshold; 752 if (changed & WIPHY_PARAM_RETRY_LONG) 753 bss_cfg->retry_limit = wiphy->retry_long; 754 755 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG, 756 HostCmd_ACT_GEN_SET, 757 UAP_BSS_PARAMS_I, bss_cfg, 758 false); 759 760 kfree(bss_cfg); 761 if (ret) { 762 mwifiex_dbg(adapter, ERROR, 763 "Failed to set wiphy phy params\n"); 764 return ret; 765 } 766 break; 767 768 case MWIFIEX_BSS_ROLE_STA: 769 if (priv->media_connected) { 770 mwifiex_dbg(adapter, ERROR, 771 "cannot change wiphy params when connected"); 772 return -EINVAL; 773 } 774 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 775 ret = mwifiex_set_rts(priv, 776 wiphy->rts_threshold); 777 if (ret) 778 return ret; 779 } 780 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 781 ret = mwifiex_set_frag(priv, 782 wiphy->frag_threshold); 783 if (ret) 784 return ret; 785 } 786 break; 787 } 788 789 return 0; 790 } 791 792 static int 793 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv) 794 { 795 u16 mode = P2P_MODE_DISABLE; 796 797 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, 798 HostCmd_ACT_GEN_SET, 0, &mode, true)) 799 return -1; 800 801 return 0; 802 } 803 804 /* 805 * This function initializes the functionalities for P2P client. 806 * The P2P client initialization sequence is: 807 * disable -> device -> client 808 */ 809 static int 810 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv) 811 { 812 u16 mode; 813 814 if (mwifiex_cfg80211_deinit_p2p(priv)) 815 return -1; 816 817 mode = P2P_MODE_DEVICE; 818 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, 819 HostCmd_ACT_GEN_SET, 0, &mode, true)) 820 return -1; 821 822 mode = P2P_MODE_CLIENT; 823 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, 824 HostCmd_ACT_GEN_SET, 0, &mode, true)) 825 return -1; 826 827 return 0; 828 } 829 830 /* 831 * This function initializes the functionalities for P2P GO. 832 * The P2P GO initialization sequence is: 833 * disable -> device -> GO 834 */ 835 static int 836 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv) 837 { 838 u16 mode; 839 840 if (mwifiex_cfg80211_deinit_p2p(priv)) 841 return -1; 842 843 mode = P2P_MODE_DEVICE; 844 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, 845 HostCmd_ACT_GEN_SET, 0, &mode, true)) 846 return -1; 847 848 mode = P2P_MODE_GO; 849 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, 850 HostCmd_ACT_GEN_SET, 0, &mode, true)) 851 return -1; 852 853 return 0; 854 } 855 856 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv) 857 { 858 struct mwifiex_adapter *adapter = priv->adapter; 859 unsigned long flags; 860 861 priv->mgmt_frame_mask = 0; 862 if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG, 863 HostCmd_ACT_GEN_SET, 0, 864 &priv->mgmt_frame_mask, false)) { 865 mwifiex_dbg(adapter, ERROR, 866 "could not unregister mgmt frame rx\n"); 867 return -1; 868 } 869 870 mwifiex_deauthenticate(priv, NULL); 871 872 spin_lock_irqsave(&adapter->main_proc_lock, flags); 873 adapter->main_locked = true; 874 if (adapter->mwifiex_processing) { 875 spin_unlock_irqrestore(&adapter->main_proc_lock, flags); 876 flush_workqueue(adapter->workqueue); 877 } else { 878 spin_unlock_irqrestore(&adapter->main_proc_lock, flags); 879 } 880 881 spin_lock_bh(&adapter->rx_proc_lock); 882 adapter->rx_locked = true; 883 if (adapter->rx_processing) { 884 spin_unlock_bh(&adapter->rx_proc_lock); 885 flush_workqueue(adapter->rx_workqueue); 886 } else { 887 spin_unlock_bh(&adapter->rx_proc_lock); 888 } 889 890 mwifiex_free_priv(priv); 891 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 892 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; 893 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM; 894 895 return 0; 896 } 897 898 static int 899 mwifiex_init_new_priv_params(struct mwifiex_private *priv, 900 struct net_device *dev, 901 enum nl80211_iftype type) 902 { 903 struct mwifiex_adapter *adapter = priv->adapter; 904 unsigned long flags; 905 906 mwifiex_init_priv(priv); 907 908 priv->bss_mode = type; 909 priv->wdev.iftype = type; 910 911 mwifiex_init_priv_params(priv, priv->netdev); 912 priv->bss_started = 0; 913 914 switch (type) { 915 case NL80211_IFTYPE_STATION: 916 case NL80211_IFTYPE_ADHOC: 917 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 918 priv->bss_type = MWIFIEX_BSS_TYPE_STA; 919 break; 920 case NL80211_IFTYPE_P2P_CLIENT: 921 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 922 priv->bss_type = MWIFIEX_BSS_TYPE_P2P; 923 break; 924 case NL80211_IFTYPE_P2P_GO: 925 priv->bss_role = MWIFIEX_BSS_ROLE_UAP; 926 priv->bss_type = MWIFIEX_BSS_TYPE_P2P; 927 break; 928 case NL80211_IFTYPE_AP: 929 priv->bss_role = MWIFIEX_BSS_ROLE_UAP; 930 priv->bss_type = MWIFIEX_BSS_TYPE_UAP; 931 break; 932 default: 933 mwifiex_dbg(adapter, ERROR, 934 "%s: changing to %d not supported\n", 935 dev->name, type); 936 return -EOPNOTSUPP; 937 } 938 939 spin_lock_irqsave(&adapter->main_proc_lock, flags); 940 adapter->main_locked = false; 941 spin_unlock_irqrestore(&adapter->main_proc_lock, flags); 942 943 spin_lock_bh(&adapter->rx_proc_lock); 944 adapter->rx_locked = false; 945 spin_unlock_bh(&adapter->rx_proc_lock); 946 947 mwifiex_set_mac_address(priv, dev, false, NULL); 948 949 return 0; 950 } 951 952 static bool 953 is_vif_type_change_allowed(struct mwifiex_adapter *adapter, 954 enum nl80211_iftype old_iftype, 955 enum nl80211_iftype new_iftype) 956 { 957 switch (old_iftype) { 958 case NL80211_IFTYPE_ADHOC: 959 switch (new_iftype) { 960 case NL80211_IFTYPE_STATION: 961 return true; 962 case NL80211_IFTYPE_P2P_CLIENT: 963 case NL80211_IFTYPE_P2P_GO: 964 return adapter->curr_iface_comb.p2p_intf != 965 adapter->iface_limit.p2p_intf; 966 case NL80211_IFTYPE_AP: 967 return adapter->curr_iface_comb.uap_intf != 968 adapter->iface_limit.uap_intf; 969 default: 970 return false; 971 } 972 973 case NL80211_IFTYPE_STATION: 974 switch (new_iftype) { 975 case NL80211_IFTYPE_ADHOC: 976 return true; 977 case NL80211_IFTYPE_P2P_CLIENT: 978 case NL80211_IFTYPE_P2P_GO: 979 return adapter->curr_iface_comb.p2p_intf != 980 adapter->iface_limit.p2p_intf; 981 case NL80211_IFTYPE_AP: 982 return adapter->curr_iface_comb.uap_intf != 983 adapter->iface_limit.uap_intf; 984 default: 985 return false; 986 } 987 988 case NL80211_IFTYPE_AP: 989 switch (new_iftype) { 990 case NL80211_IFTYPE_ADHOC: 991 case NL80211_IFTYPE_STATION: 992 return adapter->curr_iface_comb.sta_intf != 993 adapter->iface_limit.sta_intf; 994 case NL80211_IFTYPE_P2P_CLIENT: 995 case NL80211_IFTYPE_P2P_GO: 996 return adapter->curr_iface_comb.p2p_intf != 997 adapter->iface_limit.p2p_intf; 998 default: 999 return false; 1000 } 1001 1002 case NL80211_IFTYPE_P2P_CLIENT: 1003 switch (new_iftype) { 1004 case NL80211_IFTYPE_ADHOC: 1005 case NL80211_IFTYPE_STATION: 1006 return true; 1007 case NL80211_IFTYPE_P2P_GO: 1008 return true; 1009 case NL80211_IFTYPE_AP: 1010 return adapter->curr_iface_comb.uap_intf != 1011 adapter->iface_limit.uap_intf; 1012 default: 1013 return false; 1014 } 1015 1016 case NL80211_IFTYPE_P2P_GO: 1017 switch (new_iftype) { 1018 case NL80211_IFTYPE_ADHOC: 1019 case NL80211_IFTYPE_STATION: 1020 return true; 1021 case NL80211_IFTYPE_P2P_CLIENT: 1022 return true; 1023 case NL80211_IFTYPE_AP: 1024 return adapter->curr_iface_comb.uap_intf != 1025 adapter->iface_limit.uap_intf; 1026 default: 1027 return false; 1028 } 1029 1030 default: 1031 break; 1032 } 1033 1034 return false; 1035 } 1036 1037 static void 1038 update_vif_type_counter(struct mwifiex_adapter *adapter, 1039 enum nl80211_iftype iftype, 1040 int change) 1041 { 1042 switch (iftype) { 1043 case NL80211_IFTYPE_UNSPECIFIED: 1044 case NL80211_IFTYPE_ADHOC: 1045 case NL80211_IFTYPE_STATION: 1046 adapter->curr_iface_comb.sta_intf += change; 1047 break; 1048 case NL80211_IFTYPE_AP: 1049 adapter->curr_iface_comb.uap_intf += change; 1050 break; 1051 case NL80211_IFTYPE_P2P_CLIENT: 1052 case NL80211_IFTYPE_P2P_GO: 1053 adapter->curr_iface_comb.p2p_intf += change; 1054 break; 1055 default: 1056 mwifiex_dbg(adapter, ERROR, 1057 "%s: Unsupported iftype passed: %d\n", 1058 __func__, iftype); 1059 break; 1060 } 1061 } 1062 1063 static int 1064 mwifiex_change_vif_to_p2p(struct net_device *dev, 1065 enum nl80211_iftype curr_iftype, 1066 enum nl80211_iftype type, 1067 struct vif_params *params) 1068 { 1069 struct mwifiex_private *priv; 1070 struct mwifiex_adapter *adapter; 1071 1072 priv = mwifiex_netdev_get_priv(dev); 1073 1074 if (!priv) 1075 return -1; 1076 1077 adapter = priv->adapter; 1078 1079 mwifiex_dbg(adapter, INFO, 1080 "%s: changing role to p2p\n", dev->name); 1081 1082 if (mwifiex_deinit_priv_params(priv)) 1083 return -1; 1084 if (mwifiex_init_new_priv_params(priv, dev, type)) 1085 return -1; 1086 1087 update_vif_type_counter(adapter, curr_iftype, -1); 1088 update_vif_type_counter(adapter, type, +1); 1089 dev->ieee80211_ptr->iftype = type; 1090 1091 switch (type) { 1092 case NL80211_IFTYPE_P2P_CLIENT: 1093 if (mwifiex_cfg80211_init_p2p_client(priv)) 1094 return -EFAULT; 1095 break; 1096 case NL80211_IFTYPE_P2P_GO: 1097 if (mwifiex_cfg80211_init_p2p_go(priv)) 1098 return -EFAULT; 1099 break; 1100 default: 1101 mwifiex_dbg(adapter, ERROR, 1102 "%s: changing to %d not supported\n", 1103 dev->name, type); 1104 return -EOPNOTSUPP; 1105 } 1106 1107 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1108 HostCmd_ACT_GEN_SET, 0, NULL, true)) 1109 return -1; 1110 1111 if (mwifiex_sta_init_cmd(priv, false, false)) 1112 return -1; 1113 1114 return 0; 1115 } 1116 1117 static int 1118 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev, 1119 enum nl80211_iftype curr_iftype, 1120 enum nl80211_iftype type, 1121 struct vif_params *params) 1122 { 1123 struct mwifiex_private *priv; 1124 struct mwifiex_adapter *adapter; 1125 1126 priv = mwifiex_netdev_get_priv(dev); 1127 1128 if (!priv) 1129 return -1; 1130 1131 adapter = priv->adapter; 1132 1133 if (type == NL80211_IFTYPE_STATION) 1134 mwifiex_dbg(adapter, INFO, 1135 "%s: changing role to station\n", dev->name); 1136 else 1137 mwifiex_dbg(adapter, INFO, 1138 "%s: changing role to adhoc\n", dev->name); 1139 1140 if (mwifiex_deinit_priv_params(priv)) 1141 return -1; 1142 if (mwifiex_init_new_priv_params(priv, dev, type)) 1143 return -1; 1144 1145 update_vif_type_counter(adapter, curr_iftype, -1); 1146 update_vif_type_counter(adapter, type, +1); 1147 dev->ieee80211_ptr->iftype = type; 1148 1149 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1150 HostCmd_ACT_GEN_SET, 0, NULL, true)) 1151 return -1; 1152 if (mwifiex_sta_init_cmd(priv, false, false)) 1153 return -1; 1154 1155 return 0; 1156 } 1157 1158 static int 1159 mwifiex_change_vif_to_ap(struct net_device *dev, 1160 enum nl80211_iftype curr_iftype, 1161 enum nl80211_iftype type, 1162 struct vif_params *params) 1163 { 1164 struct mwifiex_private *priv; 1165 struct mwifiex_adapter *adapter; 1166 1167 priv = mwifiex_netdev_get_priv(dev); 1168 1169 if (!priv) 1170 return -1; 1171 1172 adapter = priv->adapter; 1173 1174 mwifiex_dbg(adapter, INFO, 1175 "%s: changing role to AP\n", dev->name); 1176 1177 if (mwifiex_deinit_priv_params(priv)) 1178 return -1; 1179 if (mwifiex_init_new_priv_params(priv, dev, type)) 1180 return -1; 1181 1182 update_vif_type_counter(adapter, curr_iftype, -1); 1183 update_vif_type_counter(adapter, type, +1); 1184 dev->ieee80211_ptr->iftype = type; 1185 1186 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1187 HostCmd_ACT_GEN_SET, 0, NULL, true)) 1188 return -1; 1189 if (mwifiex_sta_init_cmd(priv, false, false)) 1190 return -1; 1191 1192 return 0; 1193 } 1194 /* 1195 * CFG802.11 operation handler to change interface type. 1196 */ 1197 static int 1198 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy, 1199 struct net_device *dev, 1200 enum nl80211_iftype type, 1201 struct vif_params *params) 1202 { 1203 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1204 enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype; 1205 1206 if (priv->scan_request) { 1207 mwifiex_dbg(priv->adapter, ERROR, 1208 "change virtual interface: scan in process\n"); 1209 return -EBUSY; 1210 } 1211 1212 if (type == NL80211_IFTYPE_UNSPECIFIED) { 1213 mwifiex_dbg(priv->adapter, INFO, 1214 "%s: no new type specified, keeping old type %d\n", 1215 dev->name, curr_iftype); 1216 return 0; 1217 } 1218 1219 if (curr_iftype == type) { 1220 mwifiex_dbg(priv->adapter, INFO, 1221 "%s: interface already is of type %d\n", 1222 dev->name, curr_iftype); 1223 return 0; 1224 } 1225 1226 if (!is_vif_type_change_allowed(priv->adapter, curr_iftype, type)) { 1227 mwifiex_dbg(priv->adapter, ERROR, 1228 "%s: change from type %d to %d is not allowed\n", 1229 dev->name, curr_iftype, type); 1230 return -EOPNOTSUPP; 1231 } 1232 1233 switch (curr_iftype) { 1234 case NL80211_IFTYPE_ADHOC: 1235 switch (type) { 1236 case NL80211_IFTYPE_STATION: 1237 priv->bss_mode = type; 1238 priv->sec_info.authentication_mode = 1239 NL80211_AUTHTYPE_OPEN_SYSTEM; 1240 dev->ieee80211_ptr->iftype = type; 1241 mwifiex_deauthenticate(priv, NULL); 1242 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1243 HostCmd_ACT_GEN_SET, 0, NULL, 1244 true); 1245 case NL80211_IFTYPE_P2P_CLIENT: 1246 case NL80211_IFTYPE_P2P_GO: 1247 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1248 type, params); 1249 case NL80211_IFTYPE_AP: 1250 return mwifiex_change_vif_to_ap(dev, curr_iftype, type, 1251 params); 1252 default: 1253 goto errnotsupp; 1254 } 1255 1256 case NL80211_IFTYPE_STATION: 1257 switch (type) { 1258 case NL80211_IFTYPE_ADHOC: 1259 priv->bss_mode = type; 1260 priv->sec_info.authentication_mode = 1261 NL80211_AUTHTYPE_OPEN_SYSTEM; 1262 dev->ieee80211_ptr->iftype = type; 1263 mwifiex_deauthenticate(priv, NULL); 1264 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1265 HostCmd_ACT_GEN_SET, 0, NULL, 1266 true); 1267 case NL80211_IFTYPE_P2P_CLIENT: 1268 case NL80211_IFTYPE_P2P_GO: 1269 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1270 type, params); 1271 case NL80211_IFTYPE_AP: 1272 return mwifiex_change_vif_to_ap(dev, curr_iftype, type, 1273 params); 1274 default: 1275 goto errnotsupp; 1276 } 1277 1278 case NL80211_IFTYPE_AP: 1279 switch (type) { 1280 case NL80211_IFTYPE_ADHOC: 1281 case NL80211_IFTYPE_STATION: 1282 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype, 1283 type, params); 1284 break; 1285 case NL80211_IFTYPE_P2P_CLIENT: 1286 case NL80211_IFTYPE_P2P_GO: 1287 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1288 type, params); 1289 default: 1290 goto errnotsupp; 1291 } 1292 1293 case NL80211_IFTYPE_P2P_CLIENT: 1294 if (mwifiex_cfg80211_deinit_p2p(priv)) 1295 return -EFAULT; 1296 1297 switch (type) { 1298 case NL80211_IFTYPE_ADHOC: 1299 case NL80211_IFTYPE_STATION: 1300 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype, 1301 type, params); 1302 case NL80211_IFTYPE_P2P_GO: 1303 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1304 type, params); 1305 case NL80211_IFTYPE_AP: 1306 return mwifiex_change_vif_to_ap(dev, curr_iftype, type, 1307 params); 1308 default: 1309 goto errnotsupp; 1310 } 1311 1312 case NL80211_IFTYPE_P2P_GO: 1313 if (mwifiex_cfg80211_deinit_p2p(priv)) 1314 return -EFAULT; 1315 1316 switch (type) { 1317 case NL80211_IFTYPE_ADHOC: 1318 case NL80211_IFTYPE_STATION: 1319 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype, 1320 type, params); 1321 case NL80211_IFTYPE_P2P_CLIENT: 1322 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1323 type, params); 1324 case NL80211_IFTYPE_AP: 1325 return mwifiex_change_vif_to_ap(dev, curr_iftype, type, 1326 params); 1327 default: 1328 goto errnotsupp; 1329 } 1330 1331 default: 1332 goto errnotsupp; 1333 } 1334 1335 1336 return 0; 1337 1338 errnotsupp: 1339 mwifiex_dbg(priv->adapter, ERROR, 1340 "unsupported interface type transition: %d to %d\n", 1341 curr_iftype, type); 1342 return -EOPNOTSUPP; 1343 } 1344 1345 static void 1346 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 rateinfo, u8 htinfo, 1347 struct rate_info *rate) 1348 { 1349 struct mwifiex_adapter *adapter = priv->adapter; 1350 1351 if (adapter->is_hw_11ac_capable) { 1352 /* bit[1-0]: 00=LG 01=HT 10=VHT */ 1353 if (htinfo & BIT(0)) { 1354 /* HT */ 1355 rate->mcs = rateinfo; 1356 rate->flags |= RATE_INFO_FLAGS_MCS; 1357 } 1358 if (htinfo & BIT(1)) { 1359 /* VHT */ 1360 rate->mcs = rateinfo & 0x0F; 1361 rate->flags |= RATE_INFO_FLAGS_VHT_MCS; 1362 } 1363 1364 if (htinfo & (BIT(1) | BIT(0))) { 1365 /* HT or VHT */ 1366 switch (htinfo & (BIT(3) | BIT(2))) { 1367 case 0: 1368 rate->bw = RATE_INFO_BW_20; 1369 break; 1370 case (BIT(2)): 1371 rate->bw = RATE_INFO_BW_40; 1372 break; 1373 case (BIT(3)): 1374 rate->bw = RATE_INFO_BW_80; 1375 break; 1376 case (BIT(3) | BIT(2)): 1377 rate->bw = RATE_INFO_BW_160; 1378 break; 1379 } 1380 1381 if (htinfo & BIT(4)) 1382 rate->flags |= RATE_INFO_FLAGS_SHORT_GI; 1383 1384 if ((rateinfo >> 4) == 1) 1385 rate->nss = 2; 1386 else 1387 rate->nss = 1; 1388 } 1389 } else { 1390 /* 1391 * Bit 0 in htinfo indicates that current rate is 11n. Valid 1392 * MCS index values for us are 0 to 15. 1393 */ 1394 if ((htinfo & BIT(0)) && (rateinfo < 16)) { 1395 rate->mcs = rateinfo; 1396 rate->flags |= RATE_INFO_FLAGS_MCS; 1397 rate->bw = RATE_INFO_BW_20; 1398 if (htinfo & BIT(1)) 1399 rate->bw = RATE_INFO_BW_40; 1400 if (htinfo & BIT(2)) 1401 rate->flags |= RATE_INFO_FLAGS_SHORT_GI; 1402 } 1403 } 1404 1405 /* Decode legacy rates for non-HT. */ 1406 if (!(htinfo & (BIT(0) | BIT(1)))) { 1407 /* Bitrates in multiples of 100kb/s. */ 1408 static const int legacy_rates[] = { 1409 [0] = 10, 1410 [1] = 20, 1411 [2] = 55, 1412 [3] = 110, 1413 [4] = 60, /* MWIFIEX_RATE_INDEX_OFDM0 */ 1414 [5] = 60, 1415 [6] = 90, 1416 [7] = 120, 1417 [8] = 180, 1418 [9] = 240, 1419 [10] = 360, 1420 [11] = 480, 1421 [12] = 540, 1422 }; 1423 if (rateinfo < ARRAY_SIZE(legacy_rates)) 1424 rate->legacy = legacy_rates[rateinfo]; 1425 } 1426 } 1427 1428 /* 1429 * This function dumps the station information on a buffer. 1430 * 1431 * The following information are shown - 1432 * - Total bytes transmitted 1433 * - Total bytes received 1434 * - Total packets transmitted 1435 * - Total packets received 1436 * - Signal quality level 1437 * - Transmission rate 1438 */ 1439 static int 1440 mwifiex_dump_station_info(struct mwifiex_private *priv, 1441 struct mwifiex_sta_node *node, 1442 struct station_info *sinfo) 1443 { 1444 u32 rate; 1445 1446 sinfo->filled = BIT_ULL(NL80211_STA_INFO_RX_BYTES) | BIT_ULL(NL80211_STA_INFO_TX_BYTES) | 1447 BIT_ULL(NL80211_STA_INFO_RX_PACKETS) | BIT_ULL(NL80211_STA_INFO_TX_PACKETS) | 1448 BIT_ULL(NL80211_STA_INFO_TX_BITRATE) | 1449 BIT_ULL(NL80211_STA_INFO_SIGNAL) | BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG); 1450 1451 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { 1452 if (!node) 1453 return -ENOENT; 1454 1455 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME) | 1456 BIT_ULL(NL80211_STA_INFO_TX_FAILED); 1457 sinfo->inactive_time = 1458 jiffies_to_msecs(jiffies - node->stats.last_rx); 1459 1460 sinfo->signal = node->stats.rssi; 1461 sinfo->signal_avg = node->stats.rssi; 1462 sinfo->rx_bytes = node->stats.rx_bytes; 1463 sinfo->tx_bytes = node->stats.tx_bytes; 1464 sinfo->rx_packets = node->stats.rx_packets; 1465 sinfo->tx_packets = node->stats.tx_packets; 1466 sinfo->tx_failed = node->stats.tx_failed; 1467 1468 mwifiex_parse_htinfo(priv, priv->tx_rate, 1469 node->stats.last_tx_htinfo, 1470 &sinfo->txrate); 1471 sinfo->txrate.legacy = node->stats.last_tx_rate * 5; 1472 1473 return 0; 1474 } 1475 1476 /* Get signal information from the firmware */ 1477 if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO, 1478 HostCmd_ACT_GEN_GET, 0, NULL, true)) { 1479 mwifiex_dbg(priv->adapter, ERROR, 1480 "failed to get signal information\n"); 1481 return -EFAULT; 1482 } 1483 1484 if (mwifiex_drv_get_data_rate(priv, &rate)) { 1485 mwifiex_dbg(priv->adapter, ERROR, 1486 "getting data rate error\n"); 1487 return -EFAULT; 1488 } 1489 1490 /* Get DTIM period information from firmware */ 1491 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 1492 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I, 1493 &priv->dtim_period, true); 1494 1495 mwifiex_parse_htinfo(priv, priv->tx_rate, priv->tx_htinfo, 1496 &sinfo->txrate); 1497 1498 sinfo->signal_avg = priv->bcn_rssi_avg; 1499 sinfo->rx_bytes = priv->stats.rx_bytes; 1500 sinfo->tx_bytes = priv->stats.tx_bytes; 1501 sinfo->rx_packets = priv->stats.rx_packets; 1502 sinfo->tx_packets = priv->stats.tx_packets; 1503 sinfo->signal = priv->bcn_rssi_avg; 1504 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */ 1505 sinfo->txrate.legacy = rate * 5; 1506 1507 sinfo->filled |= BIT(NL80211_STA_INFO_RX_BITRATE); 1508 mwifiex_parse_htinfo(priv, priv->rxpd_rate, priv->rxpd_htinfo, 1509 &sinfo->rxrate); 1510 1511 if (priv->bss_mode == NL80211_IFTYPE_STATION) { 1512 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BSS_PARAM); 1513 sinfo->bss_param.flags = 0; 1514 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap & 1515 WLAN_CAPABILITY_SHORT_PREAMBLE) 1516 sinfo->bss_param.flags |= 1517 BSS_PARAM_FLAGS_SHORT_PREAMBLE; 1518 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap & 1519 WLAN_CAPABILITY_SHORT_SLOT_TIME) 1520 sinfo->bss_param.flags |= 1521 BSS_PARAM_FLAGS_SHORT_SLOT_TIME; 1522 sinfo->bss_param.dtim_period = priv->dtim_period; 1523 sinfo->bss_param.beacon_interval = 1524 priv->curr_bss_params.bss_descriptor.beacon_period; 1525 } 1526 1527 return 0; 1528 } 1529 1530 /* 1531 * CFG802.11 operation handler to get station information. 1532 * 1533 * This function only works in connected mode, and dumps the 1534 * requested station information, if available. 1535 */ 1536 static int 1537 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev, 1538 const u8 *mac, struct station_info *sinfo) 1539 { 1540 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1541 1542 if (!priv->media_connected) 1543 return -ENOENT; 1544 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN)) 1545 return -ENOENT; 1546 1547 return mwifiex_dump_station_info(priv, NULL, sinfo); 1548 } 1549 1550 /* 1551 * CFG802.11 operation handler to dump station information. 1552 */ 1553 static int 1554 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 1555 int idx, u8 *mac, struct station_info *sinfo) 1556 { 1557 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1558 struct mwifiex_sta_node *node; 1559 int i; 1560 1561 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) && 1562 priv->media_connected && idx == 0) { 1563 ether_addr_copy(mac, priv->cfg_bssid); 1564 return mwifiex_dump_station_info(priv, NULL, sinfo); 1565 } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { 1566 mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST, 1567 HostCmd_ACT_GEN_GET, 0, NULL, true); 1568 1569 i = 0; 1570 list_for_each_entry(node, &priv->sta_list, list) { 1571 if (i++ != idx) 1572 continue; 1573 ether_addr_copy(mac, node->mac_addr); 1574 return mwifiex_dump_station_info(priv, node, sinfo); 1575 } 1576 } 1577 1578 return -ENOENT; 1579 } 1580 1581 static int 1582 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 1583 int idx, struct survey_info *survey) 1584 { 1585 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1586 struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats; 1587 enum nl80211_band band; 1588 1589 mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx); 1590 1591 memset(survey, 0, sizeof(struct survey_info)); 1592 1593 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) && 1594 priv->media_connected && idx == 0) { 1595 u8 curr_bss_band = priv->curr_bss_params.band; 1596 u32 chan = priv->curr_bss_params.bss_descriptor.channel; 1597 1598 band = mwifiex_band_to_radio_type(curr_bss_band); 1599 survey->channel = ieee80211_get_channel(wiphy, 1600 ieee80211_channel_to_frequency(chan, band)); 1601 1602 if (priv->bcn_nf_last) { 1603 survey->filled = SURVEY_INFO_NOISE_DBM; 1604 survey->noise = priv->bcn_nf_last; 1605 } 1606 return 0; 1607 } 1608 1609 if (idx >= priv->adapter->num_in_chan_stats) 1610 return -ENOENT; 1611 1612 if (!pchan_stats[idx].cca_scan_dur) 1613 return 0; 1614 1615 band = pchan_stats[idx].bandcfg; 1616 survey->channel = ieee80211_get_channel(wiphy, 1617 ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band)); 1618 survey->filled = SURVEY_INFO_NOISE_DBM | 1619 SURVEY_INFO_TIME | 1620 SURVEY_INFO_TIME_BUSY; 1621 survey->noise = pchan_stats[idx].noise; 1622 survey->time = pchan_stats[idx].cca_scan_dur; 1623 survey->time_busy = pchan_stats[idx].cca_busy_dur; 1624 1625 return 0; 1626 } 1627 1628 /* Supported rates to be advertised to the cfg80211 */ 1629 static struct ieee80211_rate mwifiex_rates[] = { 1630 {.bitrate = 10, .hw_value = 2, }, 1631 {.bitrate = 20, .hw_value = 4, }, 1632 {.bitrate = 55, .hw_value = 11, }, 1633 {.bitrate = 110, .hw_value = 22, }, 1634 {.bitrate = 60, .hw_value = 12, }, 1635 {.bitrate = 90, .hw_value = 18, }, 1636 {.bitrate = 120, .hw_value = 24, }, 1637 {.bitrate = 180, .hw_value = 36, }, 1638 {.bitrate = 240, .hw_value = 48, }, 1639 {.bitrate = 360, .hw_value = 72, }, 1640 {.bitrate = 480, .hw_value = 96, }, 1641 {.bitrate = 540, .hw_value = 108, }, 1642 }; 1643 1644 /* Channel definitions to be advertised to cfg80211 */ 1645 static struct ieee80211_channel mwifiex_channels_2ghz[] = { 1646 {.center_freq = 2412, .hw_value = 1, }, 1647 {.center_freq = 2417, .hw_value = 2, }, 1648 {.center_freq = 2422, .hw_value = 3, }, 1649 {.center_freq = 2427, .hw_value = 4, }, 1650 {.center_freq = 2432, .hw_value = 5, }, 1651 {.center_freq = 2437, .hw_value = 6, }, 1652 {.center_freq = 2442, .hw_value = 7, }, 1653 {.center_freq = 2447, .hw_value = 8, }, 1654 {.center_freq = 2452, .hw_value = 9, }, 1655 {.center_freq = 2457, .hw_value = 10, }, 1656 {.center_freq = 2462, .hw_value = 11, }, 1657 {.center_freq = 2467, .hw_value = 12, }, 1658 {.center_freq = 2472, .hw_value = 13, }, 1659 {.center_freq = 2484, .hw_value = 14, }, 1660 }; 1661 1662 static struct ieee80211_supported_band mwifiex_band_2ghz = { 1663 .channels = mwifiex_channels_2ghz, 1664 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz), 1665 .bitrates = mwifiex_rates, 1666 .n_bitrates = ARRAY_SIZE(mwifiex_rates), 1667 }; 1668 1669 static struct ieee80211_channel mwifiex_channels_5ghz[] = { 1670 {.center_freq = 5040, .hw_value = 8, }, 1671 {.center_freq = 5060, .hw_value = 12, }, 1672 {.center_freq = 5080, .hw_value = 16, }, 1673 {.center_freq = 5170, .hw_value = 34, }, 1674 {.center_freq = 5190, .hw_value = 38, }, 1675 {.center_freq = 5210, .hw_value = 42, }, 1676 {.center_freq = 5230, .hw_value = 46, }, 1677 {.center_freq = 5180, .hw_value = 36, }, 1678 {.center_freq = 5200, .hw_value = 40, }, 1679 {.center_freq = 5220, .hw_value = 44, }, 1680 {.center_freq = 5240, .hw_value = 48, }, 1681 {.center_freq = 5260, .hw_value = 52, }, 1682 {.center_freq = 5280, .hw_value = 56, }, 1683 {.center_freq = 5300, .hw_value = 60, }, 1684 {.center_freq = 5320, .hw_value = 64, }, 1685 {.center_freq = 5500, .hw_value = 100, }, 1686 {.center_freq = 5520, .hw_value = 104, }, 1687 {.center_freq = 5540, .hw_value = 108, }, 1688 {.center_freq = 5560, .hw_value = 112, }, 1689 {.center_freq = 5580, .hw_value = 116, }, 1690 {.center_freq = 5600, .hw_value = 120, }, 1691 {.center_freq = 5620, .hw_value = 124, }, 1692 {.center_freq = 5640, .hw_value = 128, }, 1693 {.center_freq = 5660, .hw_value = 132, }, 1694 {.center_freq = 5680, .hw_value = 136, }, 1695 {.center_freq = 5700, .hw_value = 140, }, 1696 {.center_freq = 5745, .hw_value = 149, }, 1697 {.center_freq = 5765, .hw_value = 153, }, 1698 {.center_freq = 5785, .hw_value = 157, }, 1699 {.center_freq = 5805, .hw_value = 161, }, 1700 {.center_freq = 5825, .hw_value = 165, }, 1701 }; 1702 1703 static struct ieee80211_supported_band mwifiex_band_5ghz = { 1704 .channels = mwifiex_channels_5ghz, 1705 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz), 1706 .bitrates = mwifiex_rates + 4, 1707 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4, 1708 }; 1709 1710 1711 /* Supported crypto cipher suits to be advertised to cfg80211 */ 1712 static const u32 mwifiex_cipher_suites[] = { 1713 WLAN_CIPHER_SUITE_WEP40, 1714 WLAN_CIPHER_SUITE_WEP104, 1715 WLAN_CIPHER_SUITE_TKIP, 1716 WLAN_CIPHER_SUITE_CCMP, 1717 WLAN_CIPHER_SUITE_SMS4, 1718 WLAN_CIPHER_SUITE_AES_CMAC, 1719 }; 1720 1721 /* Supported mgmt frame types to be advertised to cfg80211 */ 1722 static const struct ieee80211_txrx_stypes 1723 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = { 1724 [NL80211_IFTYPE_STATION] = { 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_AP] = { 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 [NL80211_IFTYPE_P2P_CLIENT] = { 1737 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1738 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 1739 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1740 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 1741 }, 1742 [NL80211_IFTYPE_P2P_GO] = { 1743 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1744 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 1745 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1746 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 1747 }, 1748 }; 1749 1750 /* 1751 * CFG802.11 operation handler for setting bit rates. 1752 * 1753 * Function configures data rates to firmware using bitrate mask 1754 * provided by cfg80211. 1755 */ 1756 static int 1757 mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy, 1758 struct net_device *dev, 1759 unsigned int link_id, 1760 const u8 *peer, 1761 const struct cfg80211_bitrate_mask *mask) 1762 { 1763 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1764 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE]; 1765 enum nl80211_band band; 1766 struct mwifiex_adapter *adapter = priv->adapter; 1767 1768 if (!priv->media_connected) { 1769 mwifiex_dbg(adapter, ERROR, 1770 "Can not set Tx data rate in disconnected state\n"); 1771 return -EINVAL; 1772 } 1773 1774 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 1775 1776 memset(bitmap_rates, 0, sizeof(bitmap_rates)); 1777 1778 /* Fill HR/DSSS rates. */ 1779 if (band == NL80211_BAND_2GHZ) 1780 bitmap_rates[0] = mask->control[band].legacy & 0x000f; 1781 1782 /* Fill OFDM rates */ 1783 if (band == NL80211_BAND_2GHZ) 1784 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4; 1785 else 1786 bitmap_rates[1] = mask->control[band].legacy; 1787 1788 /* Fill HT MCS rates */ 1789 bitmap_rates[2] = mask->control[band].ht_mcs[0]; 1790 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2) 1791 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8; 1792 1793 /* Fill VHT MCS rates */ 1794 if (adapter->fw_api_ver == MWIFIEX_FW_V15) { 1795 bitmap_rates[10] = mask->control[band].vht_mcs[0]; 1796 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2) 1797 bitmap_rates[11] = mask->control[band].vht_mcs[1]; 1798 } 1799 1800 return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG, 1801 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true); 1802 } 1803 1804 /* 1805 * CFG802.11 operation handler for connection quality monitoring. 1806 * 1807 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI 1808 * events to FW. 1809 */ 1810 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy, 1811 struct net_device *dev, 1812 s32 rssi_thold, u32 rssi_hyst) 1813 { 1814 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1815 struct mwifiex_ds_misc_subsc_evt subsc_evt; 1816 1817 priv->cqm_rssi_thold = rssi_thold; 1818 priv->cqm_rssi_hyst = rssi_hyst; 1819 1820 memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt)); 1821 subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH; 1822 1823 /* Subscribe/unsubscribe low and high rssi events */ 1824 if (rssi_thold && rssi_hyst) { 1825 subsc_evt.action = HostCmd_ACT_BITWISE_SET; 1826 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold); 1827 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold); 1828 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1; 1829 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1; 1830 return mwifiex_send_cmd(priv, 1831 HostCmd_CMD_802_11_SUBSCRIBE_EVENT, 1832 0, 0, &subsc_evt, true); 1833 } else { 1834 subsc_evt.action = HostCmd_ACT_BITWISE_CLR; 1835 return mwifiex_send_cmd(priv, 1836 HostCmd_CMD_802_11_SUBSCRIBE_EVENT, 1837 0, 0, &subsc_evt, true); 1838 } 1839 1840 return 0; 1841 } 1842 1843 /* cfg80211 operation handler for change_beacon. 1844 * Function retrieves and sets modified management IEs to FW. 1845 */ 1846 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy, 1847 struct net_device *dev, 1848 struct cfg80211_beacon_data *data) 1849 { 1850 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1851 struct mwifiex_adapter *adapter = priv->adapter; 1852 1853 mwifiex_cancel_scan(adapter); 1854 1855 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) { 1856 mwifiex_dbg(priv->adapter, ERROR, 1857 "%s: bss_type mismatched\n", __func__); 1858 return -EINVAL; 1859 } 1860 1861 if (!priv->bss_started) { 1862 mwifiex_dbg(priv->adapter, ERROR, 1863 "%s: bss not started\n", __func__); 1864 return -EINVAL; 1865 } 1866 1867 if (mwifiex_set_mgmt_ies(priv, data)) { 1868 mwifiex_dbg(priv->adapter, ERROR, 1869 "%s: setting mgmt ies failed\n", __func__); 1870 return -EFAULT; 1871 } 1872 1873 return 0; 1874 } 1875 1876 /* cfg80211 operation handler for del_station. 1877 * Function deauthenticates station which value is provided in mac parameter. 1878 * If mac is NULL/broadcast, all stations in associated station list are 1879 * deauthenticated. If bss is not started or there are no stations in 1880 * associated stations list, no action is taken. 1881 */ 1882 static int 1883 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1884 struct station_del_parameters *params) 1885 { 1886 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1887 struct mwifiex_sta_node *sta_node; 1888 u8 deauth_mac[ETH_ALEN]; 1889 1890 if (!priv->bss_started && priv->wdev.cac_started) { 1891 mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__); 1892 mwifiex_abort_cac(priv); 1893 } 1894 1895 if (list_empty(&priv->sta_list) || !priv->bss_started) 1896 return 0; 1897 1898 if (!params->mac || is_broadcast_ether_addr(params->mac)) 1899 return 0; 1900 1901 mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n", 1902 __func__, params->mac); 1903 1904 eth_zero_addr(deauth_mac); 1905 1906 spin_lock_bh(&priv->sta_list_spinlock); 1907 sta_node = mwifiex_get_sta_entry(priv, params->mac); 1908 if (sta_node) 1909 ether_addr_copy(deauth_mac, params->mac); 1910 spin_unlock_bh(&priv->sta_list_spinlock); 1911 1912 if (is_valid_ether_addr(deauth_mac)) { 1913 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH, 1914 HostCmd_ACT_GEN_SET, 0, 1915 deauth_mac, true)) 1916 return -1; 1917 } 1918 1919 return 0; 1920 } 1921 1922 static int 1923 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 1924 { 1925 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 1926 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 1927 MWIFIEX_BSS_ROLE_ANY); 1928 struct mwifiex_ds_ant_cfg ant_cfg; 1929 1930 if (!tx_ant || !rx_ant) 1931 return -EOPNOTSUPP; 1932 1933 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) { 1934 /* Not a MIMO chip. User should provide specific antenna number 1935 * for Tx/Rx path or enable all antennas for diversity 1936 */ 1937 if (tx_ant != rx_ant) 1938 return -EOPNOTSUPP; 1939 1940 if ((tx_ant & (tx_ant - 1)) && 1941 (tx_ant != BIT(adapter->number_of_antenna) - 1)) 1942 return -EOPNOTSUPP; 1943 1944 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) && 1945 (priv->adapter->number_of_antenna > 1)) { 1946 tx_ant = RF_ANTENNA_AUTO; 1947 rx_ant = RF_ANTENNA_AUTO; 1948 } 1949 } else { 1950 struct ieee80211_sta_ht_cap *ht_info; 1951 int rx_mcs_supp; 1952 enum nl80211_band band; 1953 1954 if ((tx_ant == 0x1 && rx_ant == 0x1)) { 1955 adapter->user_dev_mcs_support = HT_STREAM_1X1; 1956 if (adapter->is_hw_11ac_capable) 1957 adapter->usr_dot_11ac_mcs_support = 1958 MWIFIEX_11AC_MCS_MAP_1X1; 1959 } else { 1960 adapter->user_dev_mcs_support = HT_STREAM_2X2; 1961 if (adapter->is_hw_11ac_capable) 1962 adapter->usr_dot_11ac_mcs_support = 1963 MWIFIEX_11AC_MCS_MAP_2X2; 1964 } 1965 1966 for (band = 0; band < NUM_NL80211_BANDS; band++) { 1967 if (!adapter->wiphy->bands[band]) 1968 continue; 1969 1970 ht_info = &adapter->wiphy->bands[band]->ht_cap; 1971 rx_mcs_supp = 1972 GET_RXMCSSUPP(adapter->user_dev_mcs_support); 1973 memset(&ht_info->mcs, 0, adapter->number_of_antenna); 1974 memset(&ht_info->mcs, 0xff, rx_mcs_supp); 1975 } 1976 } 1977 1978 ant_cfg.tx_ant = tx_ant; 1979 ant_cfg.rx_ant = rx_ant; 1980 1981 return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA, 1982 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true); 1983 } 1984 1985 static int 1986 mwifiex_cfg80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 1987 { 1988 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 1989 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 1990 MWIFIEX_BSS_ROLE_ANY); 1991 mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA, 1992 HostCmd_ACT_GEN_GET, 0, NULL, true); 1993 1994 *tx_ant = priv->tx_ant; 1995 *rx_ant = priv->rx_ant; 1996 1997 return 0; 1998 } 1999 2000 /* cfg80211 operation handler for stop ap. 2001 * Function stops BSS running at uAP interface. 2002 */ 2003 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev, 2004 unsigned int link_id) 2005 { 2006 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2007 2008 mwifiex_abort_cac(priv); 2009 2010 if (mwifiex_del_mgmt_ies(priv)) 2011 mwifiex_dbg(priv->adapter, ERROR, 2012 "Failed to delete mgmt IEs!\n"); 2013 2014 priv->ap_11n_enabled = 0; 2015 memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg)); 2016 2017 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP, 2018 HostCmd_ACT_GEN_SET, 0, NULL, true)) { 2019 mwifiex_dbg(priv->adapter, ERROR, 2020 "Failed to stop the BSS\n"); 2021 return -1; 2022 } 2023 2024 if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET, 2025 HostCmd_ACT_GEN_SET, 0, NULL, true)) { 2026 mwifiex_dbg(priv->adapter, ERROR, 2027 "Failed to reset BSS\n"); 2028 return -1; 2029 } 2030 2031 if (netif_carrier_ok(priv->netdev)) 2032 netif_carrier_off(priv->netdev); 2033 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter); 2034 2035 return 0; 2036 } 2037 2038 /* cfg80211 operation handler for start_ap. 2039 * Function sets beacon period, DTIM period, SSID and security into 2040 * AP config structure. 2041 * AP is configured with these settings and BSS is started. 2042 */ 2043 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy, 2044 struct net_device *dev, 2045 struct cfg80211_ap_settings *params) 2046 { 2047 struct mwifiex_uap_bss_param *bss_cfg; 2048 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2049 2050 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) 2051 return -1; 2052 2053 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL); 2054 if (!bss_cfg) 2055 return -ENOMEM; 2056 2057 mwifiex_set_sys_config_invalid_data(bss_cfg); 2058 2059 if (params->beacon_interval) 2060 bss_cfg->beacon_period = params->beacon_interval; 2061 if (params->dtim_period) 2062 bss_cfg->dtim_period = params->dtim_period; 2063 2064 if (params->ssid && params->ssid_len) { 2065 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len); 2066 bss_cfg->ssid.ssid_len = params->ssid_len; 2067 } 2068 if (params->inactivity_timeout > 0) { 2069 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */ 2070 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout; 2071 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout; 2072 } 2073 2074 switch (params->hidden_ssid) { 2075 case NL80211_HIDDEN_SSID_NOT_IN_USE: 2076 bss_cfg->bcast_ssid_ctl = 1; 2077 break; 2078 case NL80211_HIDDEN_SSID_ZERO_LEN: 2079 bss_cfg->bcast_ssid_ctl = 0; 2080 break; 2081 case NL80211_HIDDEN_SSID_ZERO_CONTENTS: 2082 bss_cfg->bcast_ssid_ctl = 2; 2083 break; 2084 default: 2085 kfree(bss_cfg); 2086 return -EINVAL; 2087 } 2088 2089 mwifiex_uap_set_channel(priv, bss_cfg, params->chandef); 2090 mwifiex_set_uap_rates(bss_cfg, params); 2091 2092 if (mwifiex_set_secure_params(priv, bss_cfg, params)) { 2093 mwifiex_dbg(priv->adapter, ERROR, 2094 "Failed to parse security parameters!\n"); 2095 goto out; 2096 } 2097 2098 mwifiex_set_ht_params(priv, bss_cfg, params); 2099 2100 if (priv->adapter->is_hw_11ac_capable) { 2101 mwifiex_set_vht_params(priv, bss_cfg, params); 2102 mwifiex_set_vht_width(priv, params->chandef.width, 2103 priv->ap_11ac_enabled); 2104 } 2105 2106 if (priv->ap_11ac_enabled) 2107 mwifiex_set_11ac_ba_params(priv); 2108 else 2109 mwifiex_set_ba_params(priv); 2110 2111 mwifiex_set_wmm_params(priv, bss_cfg, params); 2112 2113 if (mwifiex_is_11h_active(priv)) 2114 mwifiex_set_tpc_params(priv, bss_cfg, params); 2115 2116 if (mwifiex_is_11h_active(priv) && 2117 !cfg80211_chandef_dfs_required(wiphy, ¶ms->chandef, 2118 priv->bss_mode)) { 2119 mwifiex_dbg(priv->adapter, INFO, 2120 "Disable 11h extensions in FW\n"); 2121 if (mwifiex_11h_activate(priv, false)) { 2122 mwifiex_dbg(priv->adapter, ERROR, 2123 "Failed to disable 11h extensions!!"); 2124 goto out; 2125 } 2126 priv->state_11h.is_11h_active = false; 2127 } 2128 2129 mwifiex_config_uap_11d(priv, ¶ms->beacon); 2130 2131 if (mwifiex_config_start_uap(priv, bss_cfg)) { 2132 mwifiex_dbg(priv->adapter, ERROR, 2133 "Failed to start AP\n"); 2134 goto out; 2135 } 2136 2137 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon)) 2138 goto out; 2139 2140 if (!netif_carrier_ok(priv->netdev)) 2141 netif_carrier_on(priv->netdev); 2142 mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter); 2143 2144 memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg)); 2145 kfree(bss_cfg); 2146 return 0; 2147 2148 out: 2149 kfree(bss_cfg); 2150 return -1; 2151 } 2152 2153 /* 2154 * CFG802.11 operation handler for disconnection request. 2155 * 2156 * This function does not work when there is already a disconnection 2157 * procedure going on. 2158 */ 2159 static int 2160 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev, 2161 u16 reason_code) 2162 { 2163 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2164 2165 if (!mwifiex_stop_bg_scan(priv)) 2166 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0); 2167 2168 if (mwifiex_deauthenticate(priv, NULL)) 2169 return -EFAULT; 2170 2171 eth_zero_addr(priv->cfg_bssid); 2172 priv->hs2_enabled = false; 2173 2174 return 0; 2175 } 2176 2177 /* 2178 * This function informs the CFG802.11 subsystem of a new IBSS. 2179 * 2180 * The following information are sent to the CFG802.11 subsystem 2181 * to register the new IBSS. If we do not register the new IBSS, 2182 * a kernel panic will result. 2183 * - SSID 2184 * - SSID length 2185 * - BSSID 2186 * - Channel 2187 */ 2188 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv) 2189 { 2190 struct ieee80211_channel *chan; 2191 struct mwifiex_bss_info bss_info; 2192 struct cfg80211_bss *bss; 2193 int ie_len; 2194 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)]; 2195 enum nl80211_band band; 2196 2197 if (mwifiex_get_bss_info(priv, &bss_info)) 2198 return -1; 2199 2200 ie_buf[0] = WLAN_EID_SSID; 2201 ie_buf[1] = bss_info.ssid.ssid_len; 2202 2203 memcpy(&ie_buf[sizeof(struct ieee_types_header)], 2204 &bss_info.ssid.ssid, bss_info.ssid.ssid_len); 2205 ie_len = ie_buf[1] + sizeof(struct ieee_types_header); 2206 2207 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 2208 chan = ieee80211_get_channel(priv->wdev.wiphy, 2209 ieee80211_channel_to_frequency(bss_info.bss_chan, 2210 band)); 2211 2212 bss = cfg80211_inform_bss(priv->wdev.wiphy, chan, 2213 CFG80211_BSS_FTYPE_UNKNOWN, 2214 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS, 2215 0, ie_buf, ie_len, 0, GFP_KERNEL); 2216 if (bss) { 2217 cfg80211_put_bss(priv->wdev.wiphy, bss); 2218 ether_addr_copy(priv->cfg_bssid, bss_info.bssid); 2219 } 2220 2221 return 0; 2222 } 2223 2224 /* 2225 * This function connects with a BSS. 2226 * 2227 * This function handles both Infra and Ad-Hoc modes. It also performs 2228 * validity checking on the provided parameters, disconnects from the 2229 * current BSS (if any), sets up the association/scan parameters, 2230 * including security settings, and performs specific SSID scan before 2231 * trying to connect. 2232 * 2233 * For Infra mode, the function returns failure if the specified SSID 2234 * is not found in scan table. However, for Ad-Hoc mode, it can create 2235 * the IBSS if it does not exist. On successful completion in either case, 2236 * the function notifies the CFG802.11 subsystem of the new BSS connection. 2237 */ 2238 static int 2239 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, 2240 const u8 *ssid, const u8 *bssid, int mode, 2241 struct ieee80211_channel *channel, 2242 struct cfg80211_connect_params *sme, bool privacy, 2243 struct cfg80211_bss **sel_bss) 2244 { 2245 struct cfg80211_ssid req_ssid; 2246 int ret, auth_type = 0; 2247 struct cfg80211_bss *bss = NULL; 2248 u8 is_scanning_required = 0; 2249 2250 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid)); 2251 2252 req_ssid.ssid_len = ssid_len; 2253 if (ssid_len > IEEE80211_MAX_SSID_LEN) { 2254 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n"); 2255 return -EINVAL; 2256 } 2257 2258 memcpy(req_ssid.ssid, ssid, ssid_len); 2259 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) { 2260 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n"); 2261 return -EINVAL; 2262 } 2263 2264 /* As this is new association, clear locally stored 2265 * keys and security related flags */ 2266 priv->sec_info.wpa_enabled = false; 2267 priv->sec_info.wpa2_enabled = false; 2268 priv->wep_key_curr_index = 0; 2269 priv->sec_info.encryption_mode = 0; 2270 priv->sec_info.is_authtype_auto = 0; 2271 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1); 2272 2273 if (mode == NL80211_IFTYPE_ADHOC) { 2274 u16 enable = true; 2275 2276 /* set ibss coalescing_status */ 2277 ret = mwifiex_send_cmd( 2278 priv, 2279 HostCmd_CMD_802_11_IBSS_COALESCING_STATUS, 2280 HostCmd_ACT_GEN_SET, 0, &enable, true); 2281 if (ret) 2282 return ret; 2283 2284 /* "privacy" is set only for ad-hoc mode */ 2285 if (privacy) { 2286 /* 2287 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that 2288 * the firmware can find a matching network from the 2289 * scan. The cfg80211 does not give us the encryption 2290 * mode at this stage so just setting it to WEP here. 2291 */ 2292 priv->sec_info.encryption_mode = 2293 WLAN_CIPHER_SUITE_WEP104; 2294 priv->sec_info.authentication_mode = 2295 NL80211_AUTHTYPE_OPEN_SYSTEM; 2296 } 2297 2298 goto done; 2299 } 2300 2301 /* Now handle infra mode. "sme" is valid for infra mode only */ 2302 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { 2303 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; 2304 priv->sec_info.is_authtype_auto = 1; 2305 } else { 2306 auth_type = sme->auth_type; 2307 } 2308 2309 if (sme->crypto.n_ciphers_pairwise) { 2310 priv->sec_info.encryption_mode = 2311 sme->crypto.ciphers_pairwise[0]; 2312 priv->sec_info.authentication_mode = auth_type; 2313 } 2314 2315 if (sme->crypto.cipher_group) { 2316 priv->sec_info.encryption_mode = sme->crypto.cipher_group; 2317 priv->sec_info.authentication_mode = auth_type; 2318 } 2319 if (sme->ie) 2320 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len); 2321 2322 if (sme->key) { 2323 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) { 2324 mwifiex_dbg(priv->adapter, INFO, 2325 "info: setting wep encryption\t" 2326 "with key len %d\n", sme->key_len); 2327 priv->wep_key_curr_index = sme->key_idx; 2328 ret = mwifiex_set_encode(priv, NULL, sme->key, 2329 sme->key_len, sme->key_idx, 2330 NULL, 0); 2331 } 2332 } 2333 done: 2334 /* 2335 * Scan entries are valid for some time (15 sec). So we can save one 2336 * active scan time if we just try cfg80211_get_bss first. If it fails 2337 * then request scan and cfg80211_get_bss() again for final output. 2338 */ 2339 while (1) { 2340 if (is_scanning_required) { 2341 /* Do specific SSID scanning */ 2342 if (mwifiex_request_scan(priv, &req_ssid)) { 2343 mwifiex_dbg(priv->adapter, ERROR, "scan error\n"); 2344 return -EFAULT; 2345 } 2346 } 2347 2348 /* Find the BSS we want using available scan results */ 2349 if (mode == NL80211_IFTYPE_ADHOC) 2350 bss = cfg80211_get_bss(priv->wdev.wiphy, channel, 2351 bssid, ssid, ssid_len, 2352 IEEE80211_BSS_TYPE_IBSS, 2353 IEEE80211_PRIVACY_ANY); 2354 else 2355 bss = cfg80211_get_bss(priv->wdev.wiphy, channel, 2356 bssid, ssid, ssid_len, 2357 IEEE80211_BSS_TYPE_ESS, 2358 IEEE80211_PRIVACY_ANY); 2359 2360 if (!bss) { 2361 if (is_scanning_required) { 2362 mwifiex_dbg(priv->adapter, MSG, 2363 "assoc: requested bss not found in scan results\n"); 2364 break; 2365 } 2366 is_scanning_required = 1; 2367 } else { 2368 mwifiex_dbg(priv->adapter, MSG, 2369 "info: trying to associate to bssid %pM\n", 2370 bss->bssid); 2371 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN); 2372 break; 2373 } 2374 } 2375 2376 if (bss) 2377 cfg80211_ref_bss(priv->adapter->wiphy, bss); 2378 2379 ret = mwifiex_bss_start(priv, bss, &req_ssid); 2380 if (ret) 2381 goto cleanup; 2382 2383 if (mode == NL80211_IFTYPE_ADHOC) { 2384 /* Inform the BSS information to kernel, otherwise 2385 * kernel will give a panic after successful assoc */ 2386 if (mwifiex_cfg80211_inform_ibss_bss(priv)) { 2387 ret = -EFAULT; 2388 goto cleanup; 2389 } 2390 } 2391 2392 /* Pass the selected BSS entry to caller. */ 2393 if (sel_bss) { 2394 *sel_bss = bss; 2395 bss = NULL; 2396 } 2397 2398 cleanup: 2399 if (bss) 2400 cfg80211_put_bss(priv->adapter->wiphy, bss); 2401 return ret; 2402 } 2403 2404 /* 2405 * CFG802.11 operation handler for association request. 2406 * 2407 * This function does not work when the current mode is set to Ad-Hoc, or 2408 * when there is already an association procedure going on. The given BSS 2409 * information is used to associate. 2410 */ 2411 static int 2412 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, 2413 struct cfg80211_connect_params *sme) 2414 { 2415 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2416 struct mwifiex_adapter *adapter = priv->adapter; 2417 struct cfg80211_bss *bss = NULL; 2418 int ret; 2419 2420 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) { 2421 mwifiex_dbg(adapter, ERROR, 2422 "%s: reject infra assoc request in non-STA role\n", 2423 dev->name); 2424 return -EINVAL; 2425 } 2426 2427 if (priv->wdev.connected) { 2428 mwifiex_dbg(adapter, ERROR, 2429 "%s: already connected\n", dev->name); 2430 return -EALREADY; 2431 } 2432 2433 if (priv->scan_block) 2434 priv->scan_block = false; 2435 2436 if (test_bit(MWIFIEX_SURPRISE_REMOVED, &adapter->work_flags) || 2437 test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags)) { 2438 mwifiex_dbg(adapter, ERROR, 2439 "%s: Ignore connection.\t" 2440 "Card removed or FW in bad state\n", 2441 dev->name); 2442 return -EFAULT; 2443 } 2444 2445 mwifiex_dbg(adapter, INFO, 2446 "info: Trying to associate to bssid %pM\n", sme->bssid); 2447 2448 if (!mwifiex_stop_bg_scan(priv)) 2449 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0); 2450 2451 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid, 2452 priv->bss_mode, sme->channel, sme, 0, 2453 &bss); 2454 if (!ret) { 2455 cfg80211_connect_bss(priv->netdev, priv->cfg_bssid, bss, NULL, 2456 0, NULL, 0, WLAN_STATUS_SUCCESS, 2457 GFP_KERNEL, NL80211_TIMEOUT_UNSPECIFIED); 2458 mwifiex_dbg(priv->adapter, MSG, 2459 "info: associated to bssid %pM successfully\n", 2460 priv->cfg_bssid); 2461 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) && 2462 priv->adapter->auto_tdls && 2463 priv->bss_type == MWIFIEX_BSS_TYPE_STA) 2464 mwifiex_setup_auto_tdls_timer(priv); 2465 } else { 2466 mwifiex_dbg(priv->adapter, ERROR, 2467 "info: association to bssid %pM failed\n", 2468 priv->cfg_bssid); 2469 eth_zero_addr(priv->cfg_bssid); 2470 2471 if (ret > 0) 2472 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, 2473 NULL, 0, NULL, 0, ret, 2474 GFP_KERNEL); 2475 else 2476 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, 2477 NULL, 0, NULL, 0, 2478 WLAN_STATUS_UNSPECIFIED_FAILURE, 2479 GFP_KERNEL); 2480 } 2481 2482 return 0; 2483 } 2484 2485 /* 2486 * This function sets following parameters for ibss network. 2487 * - channel 2488 * - start band 2489 * - 11n flag 2490 * - secondary channel offset 2491 */ 2492 static int mwifiex_set_ibss_params(struct mwifiex_private *priv, 2493 struct cfg80211_ibss_params *params) 2494 { 2495 struct mwifiex_adapter *adapter = priv->adapter; 2496 int index = 0, i; 2497 u8 config_bands = 0; 2498 2499 if (params->chandef.chan->band == NL80211_BAND_2GHZ) { 2500 if (!params->basic_rates) { 2501 config_bands = BAND_B | BAND_G; 2502 } else { 2503 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) { 2504 /* 2505 * Rates below 6 Mbps in the table are CCK 2506 * rates; 802.11b and from 6 they are OFDM; 2507 * 802.11G 2508 */ 2509 if (mwifiex_rates[i].bitrate == 60) { 2510 index = 1 << i; 2511 break; 2512 } 2513 } 2514 2515 if (params->basic_rates < index) { 2516 config_bands = BAND_B; 2517 } else { 2518 config_bands = BAND_G; 2519 if (params->basic_rates % index) 2520 config_bands |= BAND_B; 2521 } 2522 } 2523 2524 if (cfg80211_get_chandef_type(¶ms->chandef) != 2525 NL80211_CHAN_NO_HT) 2526 config_bands |= BAND_G | BAND_GN; 2527 } else { 2528 if (cfg80211_get_chandef_type(¶ms->chandef) == 2529 NL80211_CHAN_NO_HT) 2530 config_bands = BAND_A; 2531 else 2532 config_bands = BAND_AN | BAND_A; 2533 } 2534 2535 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) { 2536 adapter->config_bands = config_bands; 2537 adapter->adhoc_start_band = config_bands; 2538 2539 if ((config_bands & BAND_GN) || (config_bands & BAND_AN)) 2540 adapter->adhoc_11n_enabled = true; 2541 else 2542 adapter->adhoc_11n_enabled = false; 2543 } 2544 2545 adapter->sec_chan_offset = 2546 mwifiex_chan_type_to_sec_chan_offset( 2547 cfg80211_get_chandef_type(¶ms->chandef)); 2548 priv->adhoc_channel = ieee80211_frequency_to_channel( 2549 params->chandef.chan->center_freq); 2550 2551 mwifiex_dbg(adapter, INFO, 2552 "info: set ibss band %d, chan %d, chan offset %d\n", 2553 config_bands, priv->adhoc_channel, 2554 adapter->sec_chan_offset); 2555 2556 return 0; 2557 } 2558 2559 /* 2560 * CFG802.11 operation handler to join an IBSS. 2561 * 2562 * This function does not work in any mode other than Ad-Hoc, or if 2563 * a join operation is already in progress. 2564 */ 2565 static int 2566 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2567 struct cfg80211_ibss_params *params) 2568 { 2569 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2570 int ret = 0; 2571 2572 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) { 2573 mwifiex_dbg(priv->adapter, ERROR, 2574 "request to join ibss received\t" 2575 "when station is not in ibss mode\n"); 2576 goto done; 2577 } 2578 2579 mwifiex_dbg(priv->adapter, MSG, "info: trying to join to bssid %pM\n", 2580 params->bssid); 2581 2582 mwifiex_set_ibss_params(priv, params); 2583 2584 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid, 2585 params->bssid, priv->bss_mode, 2586 params->chandef.chan, NULL, 2587 params->privacy, NULL); 2588 done: 2589 if (!ret) { 2590 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, 2591 params->chandef.chan, GFP_KERNEL); 2592 mwifiex_dbg(priv->adapter, MSG, 2593 "info: joined/created adhoc network with bssid\t" 2594 "%pM successfully\n", priv->cfg_bssid); 2595 } else { 2596 mwifiex_dbg(priv->adapter, ERROR, 2597 "info: failed creating/joining adhoc network\n"); 2598 } 2599 2600 return ret; 2601 } 2602 2603 /* 2604 * CFG802.11 operation handler to leave an IBSS. 2605 * 2606 * This function does not work if a leave operation is 2607 * already in progress. 2608 */ 2609 static int 2610 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2611 { 2612 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2613 2614 mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n", 2615 priv->cfg_bssid); 2616 if (mwifiex_deauthenticate(priv, NULL)) 2617 return -EFAULT; 2618 2619 eth_zero_addr(priv->cfg_bssid); 2620 2621 return 0; 2622 } 2623 2624 /* 2625 * CFG802.11 operation handler for scan request. 2626 * 2627 * This function issues a scan request to the firmware based upon 2628 * the user specified scan configuration. On successful completion, 2629 * it also informs the results. 2630 */ 2631 static int 2632 mwifiex_cfg80211_scan(struct wiphy *wiphy, 2633 struct cfg80211_scan_request *request) 2634 { 2635 struct net_device *dev = request->wdev->netdev; 2636 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2637 int i, offset, ret; 2638 struct ieee80211_channel *chan; 2639 struct ieee_types_header *ie; 2640 struct mwifiex_user_scan_cfg *user_scan_cfg; 2641 u8 mac_addr[ETH_ALEN]; 2642 2643 mwifiex_dbg(priv->adapter, CMD, 2644 "info: received scan request on %s\n", dev->name); 2645 2646 /* Block scan request if scan operation or scan cleanup when interface 2647 * is disabled is in process 2648 */ 2649 if (priv->scan_request || priv->scan_aborting) { 2650 mwifiex_dbg(priv->adapter, WARN, 2651 "cmd: Scan already in process..\n"); 2652 return -EBUSY; 2653 } 2654 2655 if (!priv->wdev.connected && priv->scan_block) 2656 priv->scan_block = false; 2657 2658 if (!mwifiex_stop_bg_scan(priv)) 2659 cfg80211_sched_scan_stopped_locked(priv->wdev.wiphy, 0); 2660 2661 user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL); 2662 if (!user_scan_cfg) 2663 return -ENOMEM; 2664 2665 priv->scan_request = request; 2666 2667 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) { 2668 get_random_mask_addr(mac_addr, request->mac_addr, 2669 request->mac_addr_mask); 2670 ether_addr_copy(request->mac_addr, mac_addr); 2671 ether_addr_copy(user_scan_cfg->random_mac, mac_addr); 2672 } 2673 2674 user_scan_cfg->num_ssids = request->n_ssids; 2675 user_scan_cfg->ssid_list = request->ssids; 2676 2677 if (request->ie && request->ie_len) { 2678 offset = 0; 2679 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2680 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR) 2681 continue; 2682 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN; 2683 ie = (struct ieee_types_header *)(request->ie + offset); 2684 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len); 2685 offset += sizeof(*ie) + ie->len; 2686 2687 if (offset >= request->ie_len) 2688 break; 2689 } 2690 } 2691 2692 for (i = 0; i < min_t(u32, request->n_channels, 2693 MWIFIEX_USER_SCAN_CHAN_MAX); i++) { 2694 chan = request->channels[i]; 2695 user_scan_cfg->chan_list[i].chan_number = chan->hw_value; 2696 user_scan_cfg->chan_list[i].radio_type = chan->band; 2697 2698 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids) 2699 user_scan_cfg->chan_list[i].scan_type = 2700 MWIFIEX_SCAN_TYPE_PASSIVE; 2701 else 2702 user_scan_cfg->chan_list[i].scan_type = 2703 MWIFIEX_SCAN_TYPE_ACTIVE; 2704 2705 user_scan_cfg->chan_list[i].scan_time = 0; 2706 } 2707 2708 if (priv->adapter->scan_chan_gap_enabled && 2709 mwifiex_is_any_intf_active(priv)) 2710 user_scan_cfg->scan_chan_gap = 2711 priv->adapter->scan_chan_gap_time; 2712 2713 ret = mwifiex_scan_networks(priv, user_scan_cfg); 2714 kfree(user_scan_cfg); 2715 if (ret) { 2716 mwifiex_dbg(priv->adapter, ERROR, 2717 "scan failed: %d\n", ret); 2718 priv->scan_aborting = false; 2719 priv->scan_request = NULL; 2720 return ret; 2721 } 2722 2723 if (request->ie && request->ie_len) { 2724 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2725 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) { 2726 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR; 2727 memset(&priv->vs_ie[i].ie, 0, 2728 MWIFIEX_MAX_VSIE_LEN); 2729 } 2730 } 2731 } 2732 return 0; 2733 } 2734 2735 /* CFG802.11 operation handler for sched_scan_start. 2736 * 2737 * This function issues a bgscan config request to the firmware based upon 2738 * the user specified sched_scan configuration. On successful completion, 2739 * firmware will generate BGSCAN_REPORT event, driver should issue bgscan 2740 * query command to get sched_scan results from firmware. 2741 */ 2742 static int 2743 mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy, 2744 struct net_device *dev, 2745 struct cfg80211_sched_scan_request *request) 2746 { 2747 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2748 int i, offset; 2749 struct ieee80211_channel *chan; 2750 struct mwifiex_bg_scan_cfg *bgscan_cfg; 2751 struct ieee_types_header *ie; 2752 2753 if (!request || (!request->n_ssids && !request->n_match_sets)) { 2754 wiphy_err(wiphy, "%s : Invalid Sched_scan parameters", 2755 __func__); 2756 return -EINVAL; 2757 } 2758 2759 wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ", 2760 request->n_ssids, request->n_match_sets); 2761 wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n", 2762 request->n_channels, request->scan_plans->interval, 2763 (int)request->ie_len); 2764 2765 bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL); 2766 if (!bgscan_cfg) 2767 return -ENOMEM; 2768 2769 if (priv->scan_request || priv->scan_aborting) 2770 bgscan_cfg->start_later = true; 2771 2772 bgscan_cfg->num_ssids = request->n_match_sets; 2773 bgscan_cfg->ssid_list = request->match_sets; 2774 2775 if (request->ie && request->ie_len) { 2776 offset = 0; 2777 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2778 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR) 2779 continue; 2780 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN; 2781 ie = (struct ieee_types_header *)(request->ie + offset); 2782 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len); 2783 offset += sizeof(*ie) + ie->len; 2784 2785 if (offset >= request->ie_len) 2786 break; 2787 } 2788 } 2789 2790 for (i = 0; i < min_t(u32, request->n_channels, 2791 MWIFIEX_BG_SCAN_CHAN_MAX); i++) { 2792 chan = request->channels[i]; 2793 bgscan_cfg->chan_list[i].chan_number = chan->hw_value; 2794 bgscan_cfg->chan_list[i].radio_type = chan->band; 2795 2796 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids) 2797 bgscan_cfg->chan_list[i].scan_type = 2798 MWIFIEX_SCAN_TYPE_PASSIVE; 2799 else 2800 bgscan_cfg->chan_list[i].scan_type = 2801 MWIFIEX_SCAN_TYPE_ACTIVE; 2802 2803 bgscan_cfg->chan_list[i].scan_time = 0; 2804 } 2805 2806 bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels, 2807 MWIFIEX_BG_SCAN_CHAN_MAX); 2808 2809 /* Use at least 15 second for per scan cycle */ 2810 bgscan_cfg->scan_interval = (request->scan_plans->interval > 2811 MWIFIEX_BGSCAN_INTERVAL) ? 2812 request->scan_plans->interval : 2813 MWIFIEX_BGSCAN_INTERVAL; 2814 2815 bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT; 2816 bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH | 2817 MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE; 2818 bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA; 2819 bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET; 2820 bgscan_cfg->enable = true; 2821 if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) { 2822 bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH; 2823 bgscan_cfg->rssi_threshold = request->min_rssi_thold; 2824 } 2825 2826 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG, 2827 HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) { 2828 kfree(bgscan_cfg); 2829 return -EFAULT; 2830 } 2831 2832 priv->sched_scanning = true; 2833 2834 kfree(bgscan_cfg); 2835 return 0; 2836 } 2837 2838 /* CFG802.11 operation handler for sched_scan_stop. 2839 * 2840 * This function issues a bgscan config command to disable 2841 * previous bgscan configuration in the firmware 2842 */ 2843 static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy, 2844 struct net_device *dev, u64 reqid) 2845 { 2846 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2847 2848 wiphy_info(wiphy, "sched scan stop!"); 2849 mwifiex_stop_bg_scan(priv); 2850 2851 return 0; 2852 } 2853 2854 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info, 2855 struct mwifiex_private *priv) 2856 { 2857 struct mwifiex_adapter *adapter = priv->adapter; 2858 2859 vht_info->vht_supported = true; 2860 2861 vht_info->cap = adapter->hw_dot_11ac_dev_cap; 2862 /* Update MCS support for VHT */ 2863 vht_info->vht_mcs.rx_mcs_map = cpu_to_le16( 2864 adapter->hw_dot_11ac_mcs_support & 0xFFFF); 2865 vht_info->vht_mcs.rx_highest = 0; 2866 vht_info->vht_mcs.tx_mcs_map = cpu_to_le16( 2867 adapter->hw_dot_11ac_mcs_support >> 16); 2868 vht_info->vht_mcs.tx_highest = 0; 2869 } 2870 2871 /* 2872 * This function sets up the CFG802.11 specific HT capability fields 2873 * with default values. 2874 * 2875 * The following default values are set - 2876 * - HT Supported = True 2877 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K 2878 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE 2879 * - HT Capabilities supported by firmware 2880 * - MCS information, Rx mask = 0xff 2881 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01) 2882 */ 2883 static void 2884 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info, 2885 struct mwifiex_private *priv) 2886 { 2887 int rx_mcs_supp; 2888 struct ieee80211_mcs_info mcs_set; 2889 u8 *mcs = (u8 *)&mcs_set; 2890 struct mwifiex_adapter *adapter = priv->adapter; 2891 2892 ht_info->ht_supported = true; 2893 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; 2894 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; 2895 2896 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); 2897 2898 /* Fill HT capability information */ 2899 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) 2900 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 2901 else 2902 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 2903 2904 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap)) 2905 ht_info->cap |= IEEE80211_HT_CAP_SGI_20; 2906 else 2907 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20; 2908 2909 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap)) 2910 ht_info->cap |= IEEE80211_HT_CAP_SGI_40; 2911 else 2912 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40; 2913 2914 if (adapter->user_dev_mcs_support == HT_STREAM_2X2) 2915 ht_info->cap |= 2 << IEEE80211_HT_CAP_RX_STBC_SHIFT; 2916 else 2917 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT; 2918 2919 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap)) 2920 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC; 2921 else 2922 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC; 2923 2924 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap)) 2925 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD; 2926 else 2927 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD; 2928 2929 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap)) 2930 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT; 2931 else 2932 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT; 2933 2934 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap)) 2935 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING; 2936 else 2937 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING; 2938 2939 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU; 2940 ht_info->cap |= IEEE80211_HT_CAP_SM_PS; 2941 2942 rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support); 2943 /* Set MCS for 1x1/2x2 */ 2944 memset(mcs, 0xff, rx_mcs_supp); 2945 /* Clear all the other values */ 2946 memset(&mcs[rx_mcs_supp], 0, 2947 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp); 2948 if (priv->bss_mode == NL80211_IFTYPE_STATION || 2949 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) 2950 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */ 2951 SETHT_MCS32(mcs_set.rx_mask); 2952 2953 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info)); 2954 2955 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; 2956 } 2957 2958 /* 2959 * create a new virtual interface with the given name and name assign type 2960 */ 2961 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy, 2962 const char *name, 2963 unsigned char name_assign_type, 2964 enum nl80211_iftype type, 2965 struct vif_params *params) 2966 { 2967 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 2968 struct mwifiex_private *priv; 2969 struct net_device *dev; 2970 void *mdev_priv; 2971 int ret; 2972 2973 if (!adapter) 2974 return ERR_PTR(-EFAULT); 2975 2976 switch (type) { 2977 case NL80211_IFTYPE_UNSPECIFIED: 2978 case NL80211_IFTYPE_STATION: 2979 case NL80211_IFTYPE_ADHOC: 2980 if (adapter->curr_iface_comb.sta_intf == 2981 adapter->iface_limit.sta_intf) { 2982 mwifiex_dbg(adapter, ERROR, 2983 "cannot create multiple sta/adhoc ifaces\n"); 2984 return ERR_PTR(-EINVAL); 2985 } 2986 2987 priv = mwifiex_get_unused_priv_by_bss_type( 2988 adapter, MWIFIEX_BSS_TYPE_STA); 2989 if (!priv) { 2990 mwifiex_dbg(adapter, ERROR, 2991 "could not get free private struct\n"); 2992 return ERR_PTR(-EFAULT); 2993 } 2994 2995 priv->wdev.wiphy = wiphy; 2996 priv->wdev.iftype = NL80211_IFTYPE_STATION; 2997 2998 if (type == NL80211_IFTYPE_UNSPECIFIED) 2999 priv->bss_mode = NL80211_IFTYPE_STATION; 3000 else 3001 priv->bss_mode = type; 3002 3003 priv->bss_type = MWIFIEX_BSS_TYPE_STA; 3004 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 3005 priv->bss_priority = 0; 3006 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 3007 3008 break; 3009 case NL80211_IFTYPE_AP: 3010 if (adapter->curr_iface_comb.uap_intf == 3011 adapter->iface_limit.uap_intf) { 3012 mwifiex_dbg(adapter, ERROR, 3013 "cannot create multiple AP ifaces\n"); 3014 return ERR_PTR(-EINVAL); 3015 } 3016 3017 priv = mwifiex_get_unused_priv_by_bss_type( 3018 adapter, MWIFIEX_BSS_TYPE_UAP); 3019 if (!priv) { 3020 mwifiex_dbg(adapter, ERROR, 3021 "could not get free private struct\n"); 3022 return ERR_PTR(-EFAULT); 3023 } 3024 3025 priv->wdev.wiphy = wiphy; 3026 priv->wdev.iftype = NL80211_IFTYPE_AP; 3027 3028 priv->bss_type = MWIFIEX_BSS_TYPE_UAP; 3029 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 3030 priv->bss_priority = 0; 3031 priv->bss_role = MWIFIEX_BSS_ROLE_UAP; 3032 priv->bss_started = 0; 3033 priv->bss_mode = type; 3034 3035 break; 3036 case NL80211_IFTYPE_P2P_CLIENT: 3037 if (adapter->curr_iface_comb.p2p_intf == 3038 adapter->iface_limit.p2p_intf) { 3039 mwifiex_dbg(adapter, ERROR, 3040 "cannot create multiple P2P ifaces\n"); 3041 return ERR_PTR(-EINVAL); 3042 } 3043 3044 priv = mwifiex_get_unused_priv_by_bss_type( 3045 adapter, MWIFIEX_BSS_TYPE_P2P); 3046 if (!priv) { 3047 mwifiex_dbg(adapter, ERROR, 3048 "could not get free private struct\n"); 3049 return ERR_PTR(-EFAULT); 3050 } 3051 3052 priv->wdev.wiphy = wiphy; 3053 /* At start-up, wpa_supplicant tries to change the interface 3054 * to NL80211_IFTYPE_STATION if it is not managed mode. 3055 */ 3056 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT; 3057 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT; 3058 3059 /* Setting bss_type to P2P tells firmware that this interface 3060 * is receiving P2P peers found during find phase and doing 3061 * action frame handshake. 3062 */ 3063 priv->bss_type = MWIFIEX_BSS_TYPE_P2P; 3064 3065 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 3066 priv->bss_priority = 0; 3067 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 3068 priv->bss_started = 0; 3069 3070 if (mwifiex_cfg80211_init_p2p_client(priv)) { 3071 memset(&priv->wdev, 0, sizeof(priv->wdev)); 3072 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 3073 return ERR_PTR(-EFAULT); 3074 } 3075 3076 break; 3077 default: 3078 mwifiex_dbg(adapter, ERROR, "type not supported\n"); 3079 return ERR_PTR(-EINVAL); 3080 } 3081 3082 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name, 3083 name_assign_type, ether_setup, 3084 IEEE80211_NUM_ACS, 1); 3085 if (!dev) { 3086 mwifiex_dbg(adapter, ERROR, 3087 "no memory available for netdevice\n"); 3088 ret = -ENOMEM; 3089 goto err_alloc_netdev; 3090 } 3091 3092 mwifiex_init_priv_params(priv, dev); 3093 3094 priv->netdev = dev; 3095 3096 if (!adapter->mfg_mode) { 3097 mwifiex_set_mac_address(priv, dev, false, NULL); 3098 3099 ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 3100 HostCmd_ACT_GEN_SET, 0, NULL, true); 3101 if (ret) 3102 goto err_set_bss_mode; 3103 3104 ret = mwifiex_sta_init_cmd(priv, false, false); 3105 if (ret) 3106 goto err_sta_init; 3107 } 3108 3109 mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv); 3110 if (adapter->is_hw_11ac_capable) 3111 mwifiex_setup_vht_caps( 3112 &wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv); 3113 3114 if (adapter->config_bands & BAND_A) 3115 mwifiex_setup_ht_caps( 3116 &wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv); 3117 3118 if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable) 3119 mwifiex_setup_vht_caps( 3120 &wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv); 3121 3122 dev_net_set(dev, wiphy_net(wiphy)); 3123 dev->ieee80211_ptr = &priv->wdev; 3124 dev->ieee80211_ptr->iftype = priv->bss_mode; 3125 SET_NETDEV_DEV(dev, wiphy_dev(wiphy)); 3126 3127 dev->flags |= IFF_BROADCAST | IFF_MULTICAST; 3128 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT; 3129 dev->needed_headroom = MWIFIEX_MIN_DATA_HEADER_LEN; 3130 dev->ethtool_ops = &mwifiex_ethtool_ops; 3131 3132 mdev_priv = netdev_priv(dev); 3133 *((unsigned long *) mdev_priv) = (unsigned long) priv; 3134 3135 SET_NETDEV_DEV(dev, adapter->dev); 3136 3137 priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s", 3138 WQ_HIGHPRI | 3139 WQ_MEM_RECLAIM | 3140 WQ_UNBOUND, 1, name); 3141 if (!priv->dfs_cac_workqueue) { 3142 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS CAC queue\n"); 3143 ret = -ENOMEM; 3144 goto err_alloc_cac; 3145 } 3146 3147 INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue); 3148 3149 priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s", 3150 WQ_HIGHPRI | WQ_UNBOUND | 3151 WQ_MEM_RECLAIM, 1, name); 3152 if (!priv->dfs_chan_sw_workqueue) { 3153 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS channel sw queue\n"); 3154 ret = -ENOMEM; 3155 goto err_alloc_chsw; 3156 } 3157 3158 INIT_DELAYED_WORK(&priv->dfs_chan_sw_work, 3159 mwifiex_dfs_chan_sw_work_queue); 3160 3161 mutex_init(&priv->async_mutex); 3162 3163 /* Register network device */ 3164 if (cfg80211_register_netdevice(dev)) { 3165 mwifiex_dbg(adapter, ERROR, "cannot register network device\n"); 3166 ret = -EFAULT; 3167 goto err_reg_netdev; 3168 } 3169 3170 mwifiex_dbg(adapter, INFO, 3171 "info: %s: Marvell 802.11 Adapter\n", dev->name); 3172 3173 #ifdef CONFIG_DEBUG_FS 3174 mwifiex_dev_debugfs_init(priv); 3175 #endif 3176 3177 update_vif_type_counter(adapter, type, +1); 3178 3179 return &priv->wdev; 3180 3181 err_reg_netdev: 3182 destroy_workqueue(priv->dfs_chan_sw_workqueue); 3183 priv->dfs_chan_sw_workqueue = NULL; 3184 err_alloc_chsw: 3185 destroy_workqueue(priv->dfs_cac_workqueue); 3186 priv->dfs_cac_workqueue = NULL; 3187 err_alloc_cac: 3188 free_netdev(dev); 3189 priv->netdev = NULL; 3190 err_sta_init: 3191 err_set_bss_mode: 3192 err_alloc_netdev: 3193 memset(&priv->wdev, 0, sizeof(priv->wdev)); 3194 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 3195 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; 3196 return ERR_PTR(ret); 3197 } 3198 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf); 3199 3200 /* 3201 * del_virtual_intf: remove the virtual interface determined by dev 3202 */ 3203 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) 3204 { 3205 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 3206 struct mwifiex_adapter *adapter = priv->adapter; 3207 struct sk_buff *skb, *tmp; 3208 3209 #ifdef CONFIG_DEBUG_FS 3210 mwifiex_dev_debugfs_remove(priv); 3211 #endif 3212 3213 if (priv->sched_scanning) 3214 priv->sched_scanning = false; 3215 3216 mwifiex_stop_net_dev_queue(priv->netdev, adapter); 3217 3218 skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) { 3219 skb_unlink(skb, &priv->bypass_txq); 3220 mwifiex_write_data_complete(priv->adapter, skb, 0, -1); 3221 } 3222 3223 if (netif_carrier_ok(priv->netdev)) 3224 netif_carrier_off(priv->netdev); 3225 3226 if (wdev->netdev->reg_state == NETREG_REGISTERED) 3227 cfg80211_unregister_netdevice(wdev->netdev); 3228 3229 if (priv->dfs_cac_workqueue) { 3230 destroy_workqueue(priv->dfs_cac_workqueue); 3231 priv->dfs_cac_workqueue = NULL; 3232 } 3233 3234 if (priv->dfs_chan_sw_workqueue) { 3235 destroy_workqueue(priv->dfs_chan_sw_workqueue); 3236 priv->dfs_chan_sw_workqueue = NULL; 3237 } 3238 /* Clear the priv in adapter */ 3239 priv->netdev = NULL; 3240 3241 update_vif_type_counter(adapter, priv->bss_mode, -1); 3242 3243 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; 3244 3245 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA || 3246 GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) 3247 kfree(priv->hist_data); 3248 3249 return 0; 3250 } 3251 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf); 3252 3253 static bool 3254 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq, 3255 u8 max_byte_seq) 3256 { 3257 int j, k, valid_byte_cnt = 0; 3258 bool dont_care_byte = false; 3259 3260 for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) { 3261 for (k = 0; k < 8; k++) { 3262 if (pat->mask[j] & 1 << k) { 3263 memcpy(byte_seq + valid_byte_cnt, 3264 &pat->pattern[j * 8 + k], 1); 3265 valid_byte_cnt++; 3266 if (dont_care_byte) 3267 return false; 3268 } else { 3269 if (valid_byte_cnt) 3270 dont_care_byte = true; 3271 } 3272 3273 /* wildcard bytes record as the offset 3274 * before the valid byte 3275 */ 3276 if (!valid_byte_cnt && !dont_care_byte) 3277 pat->pkt_offset++; 3278 3279 if (valid_byte_cnt > max_byte_seq) 3280 return false; 3281 } 3282 } 3283 3284 byte_seq[max_byte_seq] = valid_byte_cnt; 3285 3286 return true; 3287 } 3288 3289 #ifdef CONFIG_PM 3290 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv, 3291 struct mwifiex_mef_entry *mef_entry) 3292 { 3293 int i, filt_num = 0, num_ipv4 = 0; 3294 struct in_device *in_dev; 3295 struct in_ifaddr *ifa; 3296 __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR]; 3297 struct mwifiex_adapter *adapter = priv->adapter; 3298 3299 mef_entry->mode = MEF_MODE_HOST_SLEEP; 3300 mef_entry->action = MEF_ACTION_AUTO_ARP; 3301 3302 /* Enable ARP offload feature */ 3303 memset(ips, 0, sizeof(ips)); 3304 for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) { 3305 if (adapter->priv[i]->netdev) { 3306 in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev); 3307 if (!in_dev) 3308 continue; 3309 ifa = rtnl_dereference(in_dev->ifa_list); 3310 if (!ifa || !ifa->ifa_local) 3311 continue; 3312 ips[i] = ifa->ifa_local; 3313 num_ipv4++; 3314 } 3315 } 3316 3317 for (i = 0; i < num_ipv4; i++) { 3318 if (!ips[i]) 3319 continue; 3320 mef_entry->filter[filt_num].repeat = 1; 3321 memcpy(mef_entry->filter[filt_num].byte_seq, 3322 (u8 *)&ips[i], sizeof(ips[i])); 3323 mef_entry->filter[filt_num]. 3324 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3325 sizeof(ips[i]); 3326 mef_entry->filter[filt_num].offset = 46; 3327 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3328 if (filt_num) { 3329 mef_entry->filter[filt_num].filt_action = 3330 TYPE_OR; 3331 } 3332 filt_num++; 3333 } 3334 3335 mef_entry->filter[filt_num].repeat = 1; 3336 mef_entry->filter[filt_num].byte_seq[0] = 0x08; 3337 mef_entry->filter[filt_num].byte_seq[1] = 0x06; 3338 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2; 3339 mef_entry->filter[filt_num].offset = 20; 3340 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3341 mef_entry->filter[filt_num].filt_action = TYPE_AND; 3342 } 3343 3344 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv, 3345 struct mwifiex_ds_mef_cfg *mef_cfg, 3346 struct mwifiex_mef_entry *mef_entry, 3347 struct cfg80211_wowlan *wowlan) 3348 { 3349 int i, filt_num = 0, ret = 0; 3350 bool first_pat = true; 3351 u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1]; 3352 static const u8 ipv4_mc_mac[] = {0x33, 0x33}; 3353 static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e}; 3354 3355 mef_entry->mode = MEF_MODE_HOST_SLEEP; 3356 mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST; 3357 3358 for (i = 0; i < wowlan->n_patterns; i++) { 3359 memset(byte_seq, 0, sizeof(byte_seq)); 3360 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i], 3361 byte_seq, 3362 MWIFIEX_MEF_MAX_BYTESEQ)) { 3363 mwifiex_dbg(priv->adapter, ERROR, 3364 "Pattern not supported\n"); 3365 return -EOPNOTSUPP; 3366 } 3367 3368 if (!wowlan->patterns[i].pkt_offset) { 3369 if (!(byte_seq[0] & 0x01) && 3370 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) { 3371 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST; 3372 continue; 3373 } else if (is_broadcast_ether_addr(byte_seq)) { 3374 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST; 3375 continue; 3376 } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) && 3377 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) || 3378 (!memcmp(byte_seq, ipv6_mc_mac, 3) && 3379 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) { 3380 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST; 3381 continue; 3382 } 3383 } 3384 mef_entry->filter[filt_num].repeat = 1; 3385 mef_entry->filter[filt_num].offset = 3386 wowlan->patterns[i].pkt_offset; 3387 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq, 3388 sizeof(byte_seq)); 3389 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3390 3391 if (first_pat) { 3392 first_pat = false; 3393 mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n"); 3394 } else { 3395 mef_entry->filter[filt_num].filt_action = TYPE_AND; 3396 } 3397 3398 filt_num++; 3399 } 3400 3401 if (wowlan->magic_pkt) { 3402 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST; 3403 mef_entry->filter[filt_num].repeat = 16; 3404 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr, 3405 ETH_ALEN); 3406 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3407 ETH_ALEN; 3408 mef_entry->filter[filt_num].offset = 28; 3409 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3410 if (filt_num) 3411 mef_entry->filter[filt_num].filt_action = TYPE_OR; 3412 3413 filt_num++; 3414 mef_entry->filter[filt_num].repeat = 16; 3415 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr, 3416 ETH_ALEN); 3417 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3418 ETH_ALEN; 3419 mef_entry->filter[filt_num].offset = 56; 3420 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3421 mef_entry->filter[filt_num].filt_action = TYPE_OR; 3422 mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n"); 3423 } 3424 return ret; 3425 } 3426 3427 static int mwifiex_set_mef_filter(struct mwifiex_private *priv, 3428 struct cfg80211_wowlan *wowlan) 3429 { 3430 int ret = 0, num_entries = 1; 3431 struct mwifiex_ds_mef_cfg mef_cfg; 3432 struct mwifiex_mef_entry *mef_entry; 3433 3434 if (wowlan->n_patterns || wowlan->magic_pkt) 3435 num_entries++; 3436 3437 mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL); 3438 if (!mef_entry) 3439 return -ENOMEM; 3440 3441 memset(&mef_cfg, 0, sizeof(mef_cfg)); 3442 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST | 3443 MWIFIEX_CRITERIA_UNICAST; 3444 mef_cfg.num_entries = num_entries; 3445 mef_cfg.mef_entry = mef_entry; 3446 3447 mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]); 3448 3449 if (wowlan->n_patterns || wowlan->magic_pkt) { 3450 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg, 3451 &mef_entry[1], wowlan); 3452 if (ret) 3453 goto err; 3454 } 3455 3456 if (!mef_cfg.criteria) 3457 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST | 3458 MWIFIEX_CRITERIA_UNICAST | 3459 MWIFIEX_CRITERIA_MULTICAST; 3460 3461 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG, 3462 HostCmd_ACT_GEN_SET, 0, 3463 &mef_cfg, true); 3464 3465 err: 3466 kfree(mef_entry); 3467 return ret; 3468 } 3469 3470 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy, 3471 struct cfg80211_wowlan *wowlan) 3472 { 3473 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3474 struct mwifiex_ds_hs_cfg hs_cfg; 3475 int i, ret = 0, retry_num = 10; 3476 struct mwifiex_private *priv; 3477 struct mwifiex_private *sta_priv = 3478 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3479 3480 sta_priv->scan_aborting = true; 3481 for (i = 0; i < adapter->priv_num; i++) { 3482 priv = adapter->priv[i]; 3483 mwifiex_abort_cac(priv); 3484 } 3485 3486 mwifiex_cancel_all_pending_cmd(adapter); 3487 3488 for (i = 0; i < adapter->priv_num; i++) { 3489 priv = adapter->priv[i]; 3490 if (priv && priv->netdev) 3491 netif_device_detach(priv->netdev); 3492 } 3493 3494 for (i = 0; i < retry_num; i++) { 3495 if (!mwifiex_wmm_lists_empty(adapter) || 3496 !mwifiex_bypass_txlist_empty(adapter) || 3497 !skb_queue_empty(&adapter->tx_data_q)) 3498 usleep_range(10000, 15000); 3499 else 3500 break; 3501 } 3502 3503 if (!wowlan) { 3504 mwifiex_dbg(adapter, INFO, 3505 "None of the WOWLAN triggers enabled\n"); 3506 ret = 0; 3507 goto done; 3508 } 3509 3510 if (!sta_priv->media_connected && !wowlan->nd_config) { 3511 mwifiex_dbg(adapter, ERROR, 3512 "Can not configure WOWLAN in disconnected state\n"); 3513 ret = 0; 3514 goto done; 3515 } 3516 3517 ret = mwifiex_set_mef_filter(sta_priv, wowlan); 3518 if (ret) { 3519 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n"); 3520 goto done; 3521 } 3522 3523 memset(&hs_cfg, 0, sizeof(hs_cfg)); 3524 hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions); 3525 3526 if (wowlan->nd_config) { 3527 mwifiex_dbg(adapter, INFO, "Wake on net detect\n"); 3528 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT; 3529 mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev, 3530 wowlan->nd_config); 3531 } 3532 3533 if (wowlan->disconnect) { 3534 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT; 3535 mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n"); 3536 } 3537 3538 hs_cfg.is_invoke_hostcmd = false; 3539 hs_cfg.gpio = adapter->hs_cfg.gpio; 3540 hs_cfg.gap = adapter->hs_cfg.gap; 3541 ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET, 3542 MWIFIEX_SYNC_CMD, &hs_cfg); 3543 if (ret) 3544 mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n"); 3545 3546 done: 3547 sta_priv->scan_aborting = false; 3548 return ret; 3549 } 3550 3551 static int mwifiex_cfg80211_resume(struct wiphy *wiphy) 3552 { 3553 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3554 struct mwifiex_private *priv; 3555 struct mwifiex_ds_wakeup_reason wakeup_reason; 3556 struct cfg80211_wowlan_wakeup wakeup_report; 3557 int i; 3558 bool report_wakeup_reason = true; 3559 3560 for (i = 0; i < adapter->priv_num; i++) { 3561 priv = adapter->priv[i]; 3562 if (priv && priv->netdev) 3563 netif_device_attach(priv->netdev); 3564 } 3565 3566 if (!wiphy->wowlan_config) 3567 goto done; 3568 3569 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3570 mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD, 3571 &wakeup_reason); 3572 memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup)); 3573 3574 wakeup_report.pattern_idx = -1; 3575 3576 switch (wakeup_reason.hs_wakeup_reason) { 3577 case NO_HSWAKEUP_REASON: 3578 break; 3579 case BCAST_DATA_MATCHED: 3580 break; 3581 case MCAST_DATA_MATCHED: 3582 break; 3583 case UCAST_DATA_MATCHED: 3584 break; 3585 case MASKTABLE_EVENT_MATCHED: 3586 break; 3587 case NON_MASKABLE_EVENT_MATCHED: 3588 if (wiphy->wowlan_config->disconnect) 3589 wakeup_report.disconnect = true; 3590 if (wiphy->wowlan_config->nd_config) 3591 wakeup_report.net_detect = adapter->nd_info; 3592 break; 3593 case NON_MASKABLE_CONDITION_MATCHED: 3594 break; 3595 case MAGIC_PATTERN_MATCHED: 3596 if (wiphy->wowlan_config->magic_pkt) 3597 wakeup_report.magic_pkt = true; 3598 if (wiphy->wowlan_config->n_patterns) 3599 wakeup_report.pattern_idx = 1; 3600 break; 3601 case GTK_REKEY_FAILURE: 3602 if (wiphy->wowlan_config->gtk_rekey_failure) 3603 wakeup_report.gtk_rekey_failure = true; 3604 break; 3605 default: 3606 report_wakeup_reason = false; 3607 break; 3608 } 3609 3610 if (report_wakeup_reason) 3611 cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report, 3612 GFP_KERNEL); 3613 3614 done: 3615 if (adapter->nd_info) { 3616 for (i = 0 ; i < adapter->nd_info->n_matches ; i++) 3617 kfree(adapter->nd_info->matches[i]); 3618 kfree(adapter->nd_info); 3619 adapter->nd_info = NULL; 3620 } 3621 3622 return 0; 3623 } 3624 3625 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy, 3626 bool enabled) 3627 { 3628 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3629 3630 device_set_wakeup_enable(adapter->dev, enabled); 3631 } 3632 3633 static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev, 3634 struct cfg80211_gtk_rekey_data *data) 3635 { 3636 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3637 3638 if (!ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info)) 3639 return -EOPNOTSUPP; 3640 3641 return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG, 3642 HostCmd_ACT_GEN_SET, 0, data, true); 3643 } 3644 3645 #endif 3646 3647 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq) 3648 { 3649 static const u8 ipv4_mc_mac[] = {0x33, 0x33}; 3650 static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e}; 3651 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff}; 3652 3653 if ((byte_seq[0] & 0x01) && 3654 (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1)) 3655 return PACKET_TYPE_UNICAST; 3656 else if (!memcmp(byte_seq, bc_mac, 4)) 3657 return PACKET_TYPE_BROADCAST; 3658 else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) && 3659 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) || 3660 (!memcmp(byte_seq, ipv6_mc_mac, 3) && 3661 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3)) 3662 return PACKET_TYPE_MULTICAST; 3663 3664 return 0; 3665 } 3666 3667 static int 3668 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv, 3669 struct cfg80211_coalesce_rules *crule, 3670 struct mwifiex_coalesce_rule *mrule) 3671 { 3672 u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1]; 3673 struct filt_field_param *param; 3674 int i; 3675 3676 mrule->max_coalescing_delay = crule->delay; 3677 3678 param = mrule->params; 3679 3680 for (i = 0; i < crule->n_patterns; i++) { 3681 memset(byte_seq, 0, sizeof(byte_seq)); 3682 if (!mwifiex_is_pattern_supported(&crule->patterns[i], 3683 byte_seq, 3684 MWIFIEX_COALESCE_MAX_BYTESEQ)) { 3685 mwifiex_dbg(priv->adapter, ERROR, 3686 "Pattern not supported\n"); 3687 return -EOPNOTSUPP; 3688 } 3689 3690 if (!crule->patterns[i].pkt_offset) { 3691 u8 pkt_type; 3692 3693 pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq); 3694 if (pkt_type && mrule->pkt_type) { 3695 mwifiex_dbg(priv->adapter, ERROR, 3696 "Multiple packet types not allowed\n"); 3697 return -EOPNOTSUPP; 3698 } else if (pkt_type) { 3699 mrule->pkt_type = pkt_type; 3700 continue; 3701 } 3702 } 3703 3704 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH) 3705 param->operation = RECV_FILTER_MATCH_TYPE_EQ; 3706 else 3707 param->operation = RECV_FILTER_MATCH_TYPE_NE; 3708 3709 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ]; 3710 memcpy(param->operand_byte_stream, byte_seq, 3711 param->operand_len); 3712 param->offset = crule->patterns[i].pkt_offset; 3713 param++; 3714 3715 mrule->num_of_fields++; 3716 } 3717 3718 if (!mrule->pkt_type) { 3719 mwifiex_dbg(priv->adapter, ERROR, 3720 "Packet type can not be determined\n"); 3721 return -EOPNOTSUPP; 3722 } 3723 3724 return 0; 3725 } 3726 3727 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy, 3728 struct cfg80211_coalesce *coalesce) 3729 { 3730 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3731 int i, ret; 3732 struct mwifiex_ds_coalesce_cfg coalesce_cfg; 3733 struct mwifiex_private *priv = 3734 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3735 3736 memset(&coalesce_cfg, 0, sizeof(coalesce_cfg)); 3737 if (!coalesce) { 3738 mwifiex_dbg(adapter, WARN, 3739 "Disable coalesce and reset all previous rules\n"); 3740 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG, 3741 HostCmd_ACT_GEN_SET, 0, 3742 &coalesce_cfg, true); 3743 } 3744 3745 coalesce_cfg.num_of_rules = coalesce->n_rules; 3746 for (i = 0; i < coalesce->n_rules; i++) { 3747 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i], 3748 &coalesce_cfg.rule[i]); 3749 if (ret) { 3750 mwifiex_dbg(adapter, ERROR, 3751 "Recheck the patterns provided for rule %d\n", 3752 i + 1); 3753 return ret; 3754 } 3755 } 3756 3757 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG, 3758 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true); 3759 } 3760 3761 /* cfg80211 ops handler for tdls_mgmt. 3762 * Function prepares TDLS action frame packets and forwards them to FW 3763 */ 3764 static int 3765 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 3766 const u8 *peer, u8 action_code, u8 dialog_token, 3767 u16 status_code, u32 peer_capability, 3768 bool initiator, const u8 *extra_ies, 3769 size_t extra_ies_len) 3770 { 3771 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3772 int ret; 3773 3774 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) 3775 return -EOPNOTSUPP; 3776 3777 /* make sure we are in station mode and connected */ 3778 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected)) 3779 return -EOPNOTSUPP; 3780 3781 switch (action_code) { 3782 case WLAN_TDLS_SETUP_REQUEST: 3783 mwifiex_dbg(priv->adapter, MSG, 3784 "Send TDLS Setup Request to %pM status_code=%d\n", 3785 peer, status_code); 3786 mwifiex_add_auto_tdls_peer(priv, peer); 3787 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3788 dialog_token, status_code, 3789 extra_ies, extra_ies_len); 3790 break; 3791 case WLAN_TDLS_SETUP_RESPONSE: 3792 mwifiex_add_auto_tdls_peer(priv, peer); 3793 mwifiex_dbg(priv->adapter, MSG, 3794 "Send TDLS Setup Response to %pM status_code=%d\n", 3795 peer, status_code); 3796 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3797 dialog_token, status_code, 3798 extra_ies, extra_ies_len); 3799 break; 3800 case WLAN_TDLS_SETUP_CONFIRM: 3801 mwifiex_dbg(priv->adapter, MSG, 3802 "Send TDLS Confirm to %pM status_code=%d\n", peer, 3803 status_code); 3804 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3805 dialog_token, status_code, 3806 extra_ies, extra_ies_len); 3807 break; 3808 case WLAN_TDLS_TEARDOWN: 3809 mwifiex_dbg(priv->adapter, MSG, 3810 "Send TDLS Tear down to %pM\n", peer); 3811 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3812 dialog_token, status_code, 3813 extra_ies, extra_ies_len); 3814 break; 3815 case WLAN_TDLS_DISCOVERY_REQUEST: 3816 mwifiex_dbg(priv->adapter, MSG, 3817 "Send TDLS Discovery Request to %pM\n", peer); 3818 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3819 dialog_token, status_code, 3820 extra_ies, extra_ies_len); 3821 break; 3822 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: 3823 mwifiex_dbg(priv->adapter, MSG, 3824 "Send TDLS Discovery Response to %pM\n", peer); 3825 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code, 3826 dialog_token, status_code, 3827 extra_ies, extra_ies_len); 3828 break; 3829 default: 3830 mwifiex_dbg(priv->adapter, ERROR, 3831 "Unknown TDLS mgmt/action frame %pM\n", peer); 3832 ret = -EINVAL; 3833 break; 3834 } 3835 3836 return ret; 3837 } 3838 3839 static int 3840 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 3841 const u8 *peer, enum nl80211_tdls_operation action) 3842 { 3843 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3844 3845 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) || 3846 !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)) 3847 return -EOPNOTSUPP; 3848 3849 /* make sure we are in station mode and connected */ 3850 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected)) 3851 return -EOPNOTSUPP; 3852 3853 mwifiex_dbg(priv->adapter, MSG, 3854 "TDLS peer=%pM, oper=%d\n", peer, action); 3855 3856 switch (action) { 3857 case NL80211_TDLS_ENABLE_LINK: 3858 action = MWIFIEX_TDLS_ENABLE_LINK; 3859 break; 3860 case NL80211_TDLS_DISABLE_LINK: 3861 action = MWIFIEX_TDLS_DISABLE_LINK; 3862 break; 3863 case NL80211_TDLS_TEARDOWN: 3864 /* shouldn't happen!*/ 3865 mwifiex_dbg(priv->adapter, ERROR, 3866 "tdls_oper: teardown from driver not supported\n"); 3867 return -EINVAL; 3868 case NL80211_TDLS_SETUP: 3869 /* shouldn't happen!*/ 3870 mwifiex_dbg(priv->adapter, ERROR, 3871 "tdls_oper: setup from driver not supported\n"); 3872 return -EINVAL; 3873 case NL80211_TDLS_DISCOVERY_REQ: 3874 /* shouldn't happen!*/ 3875 mwifiex_dbg(priv->adapter, ERROR, 3876 "tdls_oper: discovery from driver not supported\n"); 3877 return -EINVAL; 3878 default: 3879 mwifiex_dbg(priv->adapter, ERROR, 3880 "tdls_oper: operation not supported\n"); 3881 return -EOPNOTSUPP; 3882 } 3883 3884 return mwifiex_tdls_oper(priv, peer, action); 3885 } 3886 3887 static int 3888 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev, 3889 const u8 *addr, u8 oper_class, 3890 struct cfg80211_chan_def *chandef) 3891 { 3892 struct mwifiex_sta_node *sta_ptr; 3893 u16 chan; 3894 u8 second_chan_offset, band; 3895 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3896 3897 spin_lock_bh(&priv->sta_list_spinlock); 3898 sta_ptr = mwifiex_get_sta_entry(priv, addr); 3899 if (!sta_ptr) { 3900 spin_unlock_bh(&priv->sta_list_spinlock); 3901 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n", 3902 __func__, addr); 3903 return -ENOENT; 3904 } 3905 3906 if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] & 3907 WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) { 3908 spin_unlock_bh(&priv->sta_list_spinlock); 3909 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr); 3910 return -ENOENT; 3911 } 3912 3913 if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING || 3914 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) { 3915 spin_unlock_bh(&priv->sta_list_spinlock); 3916 wiphy_err(wiphy, "channel switch is running, abort request\n"); 3917 return -EALREADY; 3918 } 3919 spin_unlock_bh(&priv->sta_list_spinlock); 3920 3921 chan = chandef->chan->hw_value; 3922 second_chan_offset = mwifiex_get_sec_chan_offset(chan); 3923 band = chandef->chan->band; 3924 mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band); 3925 3926 return 0; 3927 } 3928 3929 static void 3930 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy, 3931 struct net_device *dev, 3932 const u8 *addr) 3933 { 3934 struct mwifiex_sta_node *sta_ptr; 3935 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3936 3937 spin_lock_bh(&priv->sta_list_spinlock); 3938 sta_ptr = mwifiex_get_sta_entry(priv, addr); 3939 if (!sta_ptr) { 3940 spin_unlock_bh(&priv->sta_list_spinlock); 3941 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n", 3942 __func__, addr); 3943 } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING || 3944 sta_ptr->tdls_status == TDLS_IN_BASE_CHAN || 3945 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) { 3946 spin_unlock_bh(&priv->sta_list_spinlock); 3947 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n", 3948 addr); 3949 } else { 3950 spin_unlock_bh(&priv->sta_list_spinlock); 3951 mwifiex_stop_tdls_cs(priv, addr); 3952 } 3953 } 3954 3955 static int 3956 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev, 3957 const u8 *mac, struct station_parameters *params) 3958 { 3959 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3960 3961 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) 3962 return -EOPNOTSUPP; 3963 3964 /* make sure we are in station mode and connected */ 3965 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected) 3966 return -EOPNOTSUPP; 3967 3968 return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK); 3969 } 3970 3971 static int 3972 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3973 struct cfg80211_csa_settings *params) 3974 { 3975 struct ieee_types_header *chsw_ie; 3976 struct ieee80211_channel_sw_ie *channel_sw; 3977 int chsw_msec; 3978 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3979 3980 if (priv->adapter->scan_processing) { 3981 mwifiex_dbg(priv->adapter, ERROR, 3982 "radar detection: scan in process...\n"); 3983 return -EBUSY; 3984 } 3985 3986 if (priv->wdev.cac_started) 3987 return -EBUSY; 3988 3989 if (cfg80211_chandef_identical(¶ms->chandef, 3990 &priv->dfs_chandef)) 3991 return -EINVAL; 3992 3993 chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH, 3994 params->beacon_csa.tail, 3995 params->beacon_csa.tail_len); 3996 if (!chsw_ie) { 3997 mwifiex_dbg(priv->adapter, ERROR, 3998 "Could not parse channel switch announcement IE\n"); 3999 return -EINVAL; 4000 } 4001 4002 channel_sw = (void *)(chsw_ie + 1); 4003 if (channel_sw->mode) { 4004 if (netif_carrier_ok(priv->netdev)) 4005 netif_carrier_off(priv->netdev); 4006 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter); 4007 } 4008 4009 if (mwifiex_del_mgmt_ies(priv)) 4010 mwifiex_dbg(priv->adapter, ERROR, 4011 "Failed to delete mgmt IEs!\n"); 4012 4013 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon_csa)) { 4014 mwifiex_dbg(priv->adapter, ERROR, 4015 "%s: setting mgmt ies failed\n", __func__); 4016 return -EFAULT; 4017 } 4018 4019 memcpy(&priv->dfs_chandef, ¶ms->chandef, sizeof(priv->dfs_chandef)); 4020 memcpy(&priv->beacon_after, ¶ms->beacon_after, 4021 sizeof(priv->beacon_after)); 4022 4023 chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100); 4024 queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work, 4025 msecs_to_jiffies(chsw_msec)); 4026 return 0; 4027 } 4028 4029 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy, 4030 struct wireless_dev *wdev, 4031 unsigned int link_id, 4032 struct cfg80211_chan_def *chandef) 4033 { 4034 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 4035 struct mwifiex_bssdescriptor *curr_bss; 4036 struct ieee80211_channel *chan; 4037 enum nl80211_channel_type chan_type; 4038 enum nl80211_band band; 4039 int freq; 4040 int ret = -ENODATA; 4041 4042 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP && 4043 cfg80211_chandef_valid(&priv->bss_chandef)) { 4044 *chandef = priv->bss_chandef; 4045 ret = 0; 4046 } else if (priv->media_connected) { 4047 curr_bss = &priv->curr_bss_params.bss_descriptor; 4048 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 4049 freq = ieee80211_channel_to_frequency(curr_bss->channel, band); 4050 chan = ieee80211_get_channel(wiphy, freq); 4051 4052 if (priv->ht_param_present) { 4053 chan_type = mwifiex_get_chan_type(priv); 4054 cfg80211_chandef_create(chandef, chan, chan_type); 4055 } else { 4056 cfg80211_chandef_create(chandef, chan, 4057 NL80211_CHAN_NO_HT); 4058 } 4059 ret = 0; 4060 } 4061 4062 return ret; 4063 } 4064 4065 #ifdef CONFIG_NL80211_TESTMODE 4066 4067 enum mwifiex_tm_attr { 4068 __MWIFIEX_TM_ATTR_INVALID = 0, 4069 MWIFIEX_TM_ATTR_CMD = 1, 4070 MWIFIEX_TM_ATTR_DATA = 2, 4071 4072 /* keep last */ 4073 __MWIFIEX_TM_ATTR_AFTER_LAST, 4074 MWIFIEX_TM_ATTR_MAX = __MWIFIEX_TM_ATTR_AFTER_LAST - 1, 4075 }; 4076 4077 static const struct nla_policy mwifiex_tm_policy[MWIFIEX_TM_ATTR_MAX + 1] = { 4078 [MWIFIEX_TM_ATTR_CMD] = { .type = NLA_U32 }, 4079 [MWIFIEX_TM_ATTR_DATA] = { .type = NLA_BINARY, 4080 .len = MWIFIEX_SIZE_OF_CMD_BUFFER }, 4081 }; 4082 4083 enum mwifiex_tm_command { 4084 MWIFIEX_TM_CMD_HOSTCMD = 0, 4085 }; 4086 4087 static int mwifiex_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev, 4088 void *data, int len) 4089 { 4090 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 4091 struct mwifiex_ds_misc_cmd *hostcmd; 4092 struct nlattr *tb[MWIFIEX_TM_ATTR_MAX + 1]; 4093 struct sk_buff *skb; 4094 int err; 4095 4096 if (!priv) 4097 return -EINVAL; 4098 4099 err = nla_parse_deprecated(tb, MWIFIEX_TM_ATTR_MAX, data, len, 4100 mwifiex_tm_policy, NULL); 4101 if (err) 4102 return err; 4103 4104 if (!tb[MWIFIEX_TM_ATTR_CMD]) 4105 return -EINVAL; 4106 4107 switch (nla_get_u32(tb[MWIFIEX_TM_ATTR_CMD])) { 4108 case MWIFIEX_TM_CMD_HOSTCMD: 4109 if (!tb[MWIFIEX_TM_ATTR_DATA]) 4110 return -EINVAL; 4111 4112 hostcmd = kzalloc(sizeof(*hostcmd), GFP_KERNEL); 4113 if (!hostcmd) 4114 return -ENOMEM; 4115 4116 hostcmd->len = nla_len(tb[MWIFIEX_TM_ATTR_DATA]); 4117 memcpy(hostcmd->cmd, nla_data(tb[MWIFIEX_TM_ATTR_DATA]), 4118 hostcmd->len); 4119 4120 if (mwifiex_send_cmd(priv, 0, 0, 0, hostcmd, true)) { 4121 dev_err(priv->adapter->dev, "Failed to process hostcmd\n"); 4122 kfree(hostcmd); 4123 return -EFAULT; 4124 } 4125 4126 /* process hostcmd response*/ 4127 skb = cfg80211_testmode_alloc_reply_skb(wiphy, hostcmd->len); 4128 if (!skb) { 4129 kfree(hostcmd); 4130 return -ENOMEM; 4131 } 4132 err = nla_put(skb, MWIFIEX_TM_ATTR_DATA, 4133 hostcmd->len, hostcmd->cmd); 4134 if (err) { 4135 kfree(hostcmd); 4136 kfree_skb(skb); 4137 return -EMSGSIZE; 4138 } 4139 4140 err = cfg80211_testmode_reply(skb); 4141 kfree(hostcmd); 4142 return err; 4143 default: 4144 return -EOPNOTSUPP; 4145 } 4146 } 4147 #endif 4148 4149 static int 4150 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy, 4151 struct net_device *dev, 4152 struct cfg80211_chan_def *chandef, 4153 u32 cac_time_ms) 4154 { 4155 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 4156 struct mwifiex_radar_params radar_params; 4157 4158 if (priv->adapter->scan_processing) { 4159 mwifiex_dbg(priv->adapter, ERROR, 4160 "radar detection: scan already in process...\n"); 4161 return -EBUSY; 4162 } 4163 4164 if (!mwifiex_is_11h_active(priv)) { 4165 mwifiex_dbg(priv->adapter, INFO, 4166 "Enable 11h extensions in FW\n"); 4167 if (mwifiex_11h_activate(priv, true)) { 4168 mwifiex_dbg(priv->adapter, ERROR, 4169 "Failed to activate 11h extensions!!"); 4170 return -1; 4171 } 4172 priv->state_11h.is_11h_active = true; 4173 } 4174 4175 memset(&radar_params, 0, sizeof(struct mwifiex_radar_params)); 4176 radar_params.chandef = chandef; 4177 radar_params.cac_time_ms = cac_time_ms; 4178 4179 memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef)); 4180 4181 if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST, 4182 HostCmd_ACT_GEN_SET, 0, &radar_params, true)) 4183 return -1; 4184 4185 queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work, 4186 msecs_to_jiffies(cac_time_ms)); 4187 return 0; 4188 } 4189 4190 static int 4191 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev, 4192 const u8 *mac, 4193 struct station_parameters *params) 4194 { 4195 int ret; 4196 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 4197 4198 /* we support change_station handler only for TDLS peers*/ 4199 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) 4200 return -EOPNOTSUPP; 4201 4202 /* make sure we are in station mode and connected */ 4203 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected) 4204 return -EOPNOTSUPP; 4205 4206 priv->sta_params = params; 4207 4208 ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK); 4209 priv->sta_params = NULL; 4210 4211 return ret; 4212 } 4213 4214 /* station cfg80211 operations */ 4215 static struct cfg80211_ops mwifiex_cfg80211_ops = { 4216 .add_virtual_intf = mwifiex_add_virtual_intf, 4217 .del_virtual_intf = mwifiex_del_virtual_intf, 4218 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf, 4219 .scan = mwifiex_cfg80211_scan, 4220 .connect = mwifiex_cfg80211_connect, 4221 .disconnect = mwifiex_cfg80211_disconnect, 4222 .get_station = mwifiex_cfg80211_get_station, 4223 .dump_station = mwifiex_cfg80211_dump_station, 4224 .dump_survey = mwifiex_cfg80211_dump_survey, 4225 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params, 4226 .join_ibss = mwifiex_cfg80211_join_ibss, 4227 .leave_ibss = mwifiex_cfg80211_leave_ibss, 4228 .add_key = mwifiex_cfg80211_add_key, 4229 .del_key = mwifiex_cfg80211_del_key, 4230 .set_default_mgmt_key = mwifiex_cfg80211_set_default_mgmt_key, 4231 .mgmt_tx = mwifiex_cfg80211_mgmt_tx, 4232 .update_mgmt_frame_registrations = 4233 mwifiex_cfg80211_update_mgmt_frame_registrations, 4234 .remain_on_channel = mwifiex_cfg80211_remain_on_channel, 4235 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel, 4236 .set_default_key = mwifiex_cfg80211_set_default_key, 4237 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt, 4238 .set_tx_power = mwifiex_cfg80211_set_tx_power, 4239 .get_tx_power = mwifiex_cfg80211_get_tx_power, 4240 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask, 4241 .start_ap = mwifiex_cfg80211_start_ap, 4242 .stop_ap = mwifiex_cfg80211_stop_ap, 4243 .change_beacon = mwifiex_cfg80211_change_beacon, 4244 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config, 4245 .set_antenna = mwifiex_cfg80211_set_antenna, 4246 .get_antenna = mwifiex_cfg80211_get_antenna, 4247 .del_station = mwifiex_cfg80211_del_station, 4248 .sched_scan_start = mwifiex_cfg80211_sched_scan_start, 4249 .sched_scan_stop = mwifiex_cfg80211_sched_scan_stop, 4250 #ifdef CONFIG_PM 4251 .suspend = mwifiex_cfg80211_suspend, 4252 .resume = mwifiex_cfg80211_resume, 4253 .set_wakeup = mwifiex_cfg80211_set_wakeup, 4254 .set_rekey_data = mwifiex_set_rekey_data, 4255 #endif 4256 .set_coalesce = mwifiex_cfg80211_set_coalesce, 4257 .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt, 4258 .tdls_oper = mwifiex_cfg80211_tdls_oper, 4259 .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch, 4260 .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch, 4261 .add_station = mwifiex_cfg80211_add_station, 4262 .change_station = mwifiex_cfg80211_change_station, 4263 CFG80211_TESTMODE_CMD(mwifiex_tm_cmd) 4264 .get_channel = mwifiex_cfg80211_get_channel, 4265 .start_radar_detection = mwifiex_cfg80211_start_radar_detection, 4266 .channel_switch = mwifiex_cfg80211_channel_switch, 4267 }; 4268 4269 #ifdef CONFIG_PM 4270 static const struct wiphy_wowlan_support mwifiex_wowlan_support = { 4271 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT | 4272 WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 4273 WIPHY_WOWLAN_GTK_REKEY_FAILURE, 4274 .n_patterns = MWIFIEX_MEF_MAX_FILTERS, 4275 .pattern_min_len = 1, 4276 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4277 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4278 .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS, 4279 }; 4280 4281 static const struct wiphy_wowlan_support mwifiex_wowlan_support_no_gtk = { 4282 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT | 4283 WIPHY_WOWLAN_NET_DETECT, 4284 .n_patterns = MWIFIEX_MEF_MAX_FILTERS, 4285 .pattern_min_len = 1, 4286 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4287 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4288 .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS, 4289 }; 4290 #endif 4291 4292 static bool mwifiex_is_valid_alpha2(const char *alpha2) 4293 { 4294 if (!alpha2 || strlen(alpha2) != 2) 4295 return false; 4296 4297 if (isalpha(alpha2[0]) && isalpha(alpha2[1])) 4298 return true; 4299 4300 return false; 4301 } 4302 4303 static const struct wiphy_coalesce_support mwifiex_coalesce_support = { 4304 .n_rules = MWIFIEX_COALESCE_MAX_RULES, 4305 .max_delay = MWIFIEX_MAX_COALESCING_DELAY, 4306 .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS, 4307 .pattern_min_len = 1, 4308 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4309 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4310 }; 4311 4312 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter) 4313 { 4314 u32 n_channels_bg, n_channels_a = 0; 4315 4316 n_channels_bg = mwifiex_band_2ghz.n_channels; 4317 4318 if (adapter->config_bands & BAND_A) 4319 n_channels_a = mwifiex_band_5ghz.n_channels; 4320 4321 /* allocate twice the number total channels, since the driver issues an 4322 * additional active scan request for hidden SSIDs on passive channels. 4323 */ 4324 adapter->num_in_chan_stats = 2 * (n_channels_bg + n_channels_a); 4325 adapter->chan_stats = vmalloc(array_size(sizeof(*adapter->chan_stats), 4326 adapter->num_in_chan_stats)); 4327 4328 if (!adapter->chan_stats) 4329 return -ENOMEM; 4330 4331 return 0; 4332 } 4333 4334 /* 4335 * This function registers the device with CFG802.11 subsystem. 4336 * 4337 * The function creates the wireless device/wiphy, populates it with 4338 * default parameters and handler function pointers, and finally 4339 * registers the device. 4340 */ 4341 4342 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter) 4343 { 4344 int ret; 4345 void *wdev_priv; 4346 struct wiphy *wiphy; 4347 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA]; 4348 u8 *country_code; 4349 u32 thr, retry; 4350 4351 /* create a new wiphy for use with cfg80211 */ 4352 wiphy = wiphy_new(&mwifiex_cfg80211_ops, 4353 sizeof(struct mwifiex_adapter *)); 4354 if (!wiphy) { 4355 mwifiex_dbg(adapter, ERROR, 4356 "%s: creating new wiphy\n", __func__); 4357 return -ENOMEM; 4358 } 4359 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH; 4360 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN; 4361 wiphy->mgmt_stypes = mwifiex_mgmt_stypes; 4362 wiphy->max_remain_on_channel_duration = 5000; 4363 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 4364 BIT(NL80211_IFTYPE_P2P_CLIENT) | 4365 BIT(NL80211_IFTYPE_P2P_GO) | 4366 BIT(NL80211_IFTYPE_AP); 4367 4368 if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info)) 4369 wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC); 4370 4371 wiphy->bands[NL80211_BAND_2GHZ] = &mwifiex_band_2ghz; 4372 if (adapter->config_bands & BAND_A) 4373 wiphy->bands[NL80211_BAND_5GHZ] = &mwifiex_band_5ghz; 4374 else 4375 wiphy->bands[NL80211_BAND_5GHZ] = NULL; 4376 4377 if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info)) 4378 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs; 4379 else if (adapter->is_hw_11ac_capable) 4380 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht; 4381 else 4382 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta; 4383 wiphy->n_iface_combinations = 1; 4384 4385 if (adapter->max_sta_conn > adapter->max_p2p_conn) 4386 wiphy->max_ap_assoc_sta = adapter->max_sta_conn; 4387 else 4388 wiphy->max_ap_assoc_sta = adapter->max_p2p_conn; 4389 4390 /* Initialize cipher suits */ 4391 wiphy->cipher_suites = mwifiex_cipher_suites; 4392 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites); 4393 4394 if (adapter->regd) { 4395 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 4396 REGULATORY_DISABLE_BEACON_HINTS | 4397 REGULATORY_COUNTRY_IE_IGNORE; 4398 wiphy_apply_custom_regulatory(wiphy, adapter->regd); 4399 } 4400 4401 ether_addr_copy(wiphy->perm_addr, adapter->perm_addr); 4402 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 4403 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | 4404 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | 4405 WIPHY_FLAG_AP_UAPSD | 4406 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | 4407 WIPHY_FLAG_HAS_CHANNEL_SWITCH | 4408 WIPHY_FLAG_PS_ON_BY_DEFAULT; 4409 4410 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info)) 4411 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS | 4412 WIPHY_FLAG_TDLS_EXTERNAL_SETUP; 4413 4414 #ifdef CONFIG_PM 4415 if (ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info)) 4416 wiphy->wowlan = &mwifiex_wowlan_support; 4417 else 4418 wiphy->wowlan = &mwifiex_wowlan_support_no_gtk; 4419 #endif 4420 4421 wiphy->coalesce = &mwifiex_coalesce_support; 4422 4423 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 4424 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 4425 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; 4426 4427 wiphy->max_sched_scan_reqs = 1; 4428 wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH; 4429 wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN; 4430 wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH; 4431 4432 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1; 4433 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1; 4434 4435 wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER | 4436 NL80211_FEATURE_LOW_PRIORITY_SCAN | 4437 NL80211_FEATURE_NEED_OBSS_SCAN; 4438 4439 if (ISSUPP_ADHOC_ENABLED(adapter->fw_cap_info)) 4440 wiphy->features |= NL80211_FEATURE_HT_IBSS; 4441 4442 if (ISSUPP_RANDOM_MAC(adapter->fw_cap_info)) 4443 wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 4444 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 4445 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 4446 4447 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info)) 4448 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 4449 4450 if (adapter->fw_api_ver == MWIFIEX_FW_V15) 4451 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS; 4452 4453 /* Reserve space for mwifiex specific private data for BSS */ 4454 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv); 4455 4456 wiphy->reg_notifier = mwifiex_reg_notifier; 4457 4458 /* Set struct mwifiex_adapter pointer in wiphy_priv */ 4459 wdev_priv = wiphy_priv(wiphy); 4460 *(unsigned long *)wdev_priv = (unsigned long)adapter; 4461 4462 set_wiphy_dev(wiphy, priv->adapter->dev); 4463 4464 ret = wiphy_register(wiphy); 4465 if (ret < 0) { 4466 mwifiex_dbg(adapter, ERROR, 4467 "%s: wiphy_register failed: %d\n", __func__, ret); 4468 wiphy_free(wiphy); 4469 return ret; 4470 } 4471 4472 if (!adapter->regd) { 4473 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) { 4474 mwifiex_dbg(adapter, INFO, 4475 "driver hint alpha2: %2.2s\n", reg_alpha2); 4476 regulatory_hint(wiphy, reg_alpha2); 4477 } else { 4478 if (adapter->region_code == 0x00) { 4479 mwifiex_dbg(adapter, WARN, 4480 "Ignore world regulatory domain\n"); 4481 } else { 4482 wiphy->regulatory_flags |= 4483 REGULATORY_DISABLE_BEACON_HINTS | 4484 REGULATORY_COUNTRY_IE_IGNORE; 4485 country_code = 4486 mwifiex_11d_code_2_region( 4487 adapter->region_code); 4488 if (country_code && 4489 regulatory_hint(wiphy, country_code)) 4490 mwifiex_dbg(priv->adapter, ERROR, 4491 "regulatory_hint() failed\n"); 4492 } 4493 } 4494 } 4495 4496 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4497 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true); 4498 wiphy->frag_threshold = thr; 4499 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4500 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true); 4501 wiphy->rts_threshold = thr; 4502 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4503 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true); 4504 wiphy->retry_short = (u8) retry; 4505 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4506 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true); 4507 wiphy->retry_long = (u8) retry; 4508 4509 adapter->wiphy = wiphy; 4510 return ret; 4511 } 4512