1 /* 2 * Marvell Wireless LAN device driver: CFG80211 3 * 4 * Copyright (C) 2011-2014, Marvell International Ltd. 5 * 6 * This software file (the "File") is distributed by Marvell International 7 * Ltd. 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 = 3, .types = BIT(NL80211_IFTYPE_STATION) | 31 BIT(NL80211_IFTYPE_P2P_GO) | 32 BIT(NL80211_IFTYPE_P2P_CLIENT) | 33 BIT(NL80211_IFTYPE_AP), 34 }, 35 }; 36 37 static const struct ieee80211_iface_combination 38 mwifiex_iface_comb_ap_sta = { 39 .limits = mwifiex_ap_sta_limits, 40 .num_different_channels = 1, 41 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits), 42 .max_interfaces = MWIFIEX_MAX_BSS_NUM, 43 .beacon_int_infra_match = true, 44 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 45 BIT(NL80211_CHAN_WIDTH_20) | 46 BIT(NL80211_CHAN_WIDTH_40), 47 }; 48 49 static const struct ieee80211_iface_combination 50 mwifiex_iface_comb_ap_sta_vht = { 51 .limits = mwifiex_ap_sta_limits, 52 .num_different_channels = 1, 53 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits), 54 .max_interfaces = MWIFIEX_MAX_BSS_NUM, 55 .beacon_int_infra_match = true, 56 .radar_detect_widths = BIT(NL80211_CHAN_WIDTH_20_NOHT) | 57 BIT(NL80211_CHAN_WIDTH_20) | 58 BIT(NL80211_CHAN_WIDTH_40) | 59 BIT(NL80211_CHAN_WIDTH_80), 60 }; 61 62 static const struct 63 ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = { 64 .limits = mwifiex_ap_sta_limits, 65 .num_different_channels = 2, 66 .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits), 67 .max_interfaces = MWIFIEX_MAX_BSS_NUM, 68 .beacon_int_infra_match = true, 69 }; 70 71 /* 72 * This function maps the nl802.11 channel type into driver channel type. 73 * 74 * The mapping is as follows - 75 * NL80211_CHAN_NO_HT -> IEEE80211_HT_PARAM_CHA_SEC_NONE 76 * NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE 77 * NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE 78 * NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW 79 * Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE 80 */ 81 u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type) 82 { 83 switch (chan_type) { 84 case NL80211_CHAN_NO_HT: 85 case NL80211_CHAN_HT20: 86 return IEEE80211_HT_PARAM_CHA_SEC_NONE; 87 case NL80211_CHAN_HT40PLUS: 88 return IEEE80211_HT_PARAM_CHA_SEC_ABOVE; 89 case NL80211_CHAN_HT40MINUS: 90 return IEEE80211_HT_PARAM_CHA_SEC_BELOW; 91 default: 92 return IEEE80211_HT_PARAM_CHA_SEC_NONE; 93 } 94 } 95 96 /* This function maps IEEE HT secondary channel type to NL80211 channel type 97 */ 98 u8 mwifiex_get_chan_type(struct mwifiex_private *priv) 99 { 100 struct mwifiex_channel_band channel_band; 101 int ret; 102 103 ret = mwifiex_get_chan_info(priv, &channel_band); 104 105 if (!ret) { 106 switch (channel_band.band_config.chan_width) { 107 case CHAN_BW_20MHZ: 108 if (IS_11N_ENABLED(priv)) 109 return NL80211_CHAN_HT20; 110 else 111 return NL80211_CHAN_NO_HT; 112 case CHAN_BW_40MHZ: 113 if (channel_band.band_config.chan2_offset == 114 SEC_CHAN_ABOVE) 115 return NL80211_CHAN_HT40PLUS; 116 else 117 return NL80211_CHAN_HT40MINUS; 118 default: 119 return NL80211_CHAN_HT20; 120 } 121 } 122 123 return NL80211_CHAN_HT20; 124 } 125 126 /* 127 * This function checks whether WEP is set. 128 */ 129 static int 130 mwifiex_is_alg_wep(u32 cipher) 131 { 132 switch (cipher) { 133 case WLAN_CIPHER_SUITE_WEP40: 134 case WLAN_CIPHER_SUITE_WEP104: 135 return 1; 136 default: 137 break; 138 } 139 140 return 0; 141 } 142 143 /* 144 * This function retrieves the private structure from kernel wiphy structure. 145 */ 146 static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy) 147 { 148 return (void *) (*(unsigned long *) wiphy_priv(wiphy)); 149 } 150 151 /* 152 * CFG802.11 operation handler to delete a network key. 153 */ 154 static int 155 mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev, 156 u8 key_index, bool pairwise, const u8 *mac_addr) 157 { 158 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev); 159 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 160 const u8 *peer_mac = pairwise ? mac_addr : bc_mac; 161 162 if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) { 163 mwifiex_dbg(priv->adapter, ERROR, "deleting the crypto keys\n"); 164 return -EFAULT; 165 } 166 167 mwifiex_dbg(priv->adapter, INFO, "info: crypto keys deleted\n"); 168 return 0; 169 } 170 171 /* 172 * This function forms an skb for management frame. 173 */ 174 static int 175 mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len) 176 { 177 u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; 178 u16 pkt_len; 179 u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT; 180 181 pkt_len = len + ETH_ALEN; 182 183 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN + 184 MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len)); 185 memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len)); 186 187 memcpy(skb_push(skb, sizeof(tx_control)), 188 &tx_control, sizeof(tx_control)); 189 190 memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type)); 191 192 /* Add packet data and address4 */ 193 skb_put_data(skb, buf, sizeof(struct ieee80211_hdr_3addr)); 194 skb_put_data(skb, addr, ETH_ALEN); 195 skb_put_data(skb, buf + sizeof(struct ieee80211_hdr_3addr), 196 len - sizeof(struct ieee80211_hdr_3addr)); 197 198 skb->priority = LOW_PRIO_TID; 199 __net_timestamp(skb); 200 201 return 0; 202 } 203 204 /* 205 * CFG802.11 operation handler to transmit a management frame. 206 */ 207 static int 208 mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, 209 struct cfg80211_mgmt_tx_params *params, u64 *cookie) 210 { 211 const u8 *buf = params->buf; 212 size_t len = params->len; 213 struct sk_buff *skb; 214 u16 pkt_len; 215 const struct ieee80211_mgmt *mgmt; 216 struct mwifiex_txinfo *tx_info; 217 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 218 219 if (!buf || !len) { 220 mwifiex_dbg(priv->adapter, ERROR, "invalid buffer and length\n"); 221 return -EFAULT; 222 } 223 224 mgmt = (const struct ieee80211_mgmt *)buf; 225 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA && 226 ieee80211_is_probe_resp(mgmt->frame_control)) { 227 /* Since we support offload probe resp, we need to skip probe 228 * resp in AP or GO mode */ 229 mwifiex_dbg(priv->adapter, INFO, 230 "info: skip to send probe resp in AP or GO mode\n"); 231 return 0; 232 } 233 234 pkt_len = len + ETH_ALEN; 235 skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN + 236 MWIFIEX_MGMT_FRAME_HEADER_SIZE + 237 pkt_len + sizeof(pkt_len)); 238 239 if (!skb) { 240 mwifiex_dbg(priv->adapter, ERROR, 241 "allocate skb failed for management frame\n"); 242 return -ENOMEM; 243 } 244 245 tx_info = MWIFIEX_SKB_TXCB(skb); 246 memset(tx_info, 0, sizeof(*tx_info)); 247 tx_info->bss_num = priv->bss_num; 248 tx_info->bss_type = priv->bss_type; 249 tx_info->pkt_len = pkt_len; 250 251 mwifiex_form_mgmt_frame(skb, buf, len); 252 *cookie = prandom_u32() | 1; 253 254 if (ieee80211_is_action(mgmt->frame_control)) 255 skb = mwifiex_clone_skb_for_tx_status(priv, 256 skb, 257 MWIFIEX_BUF_FLAG_ACTION_TX_STATUS, cookie); 258 else 259 cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, 260 GFP_ATOMIC); 261 262 mwifiex_queue_tx_pkt(priv, skb); 263 264 mwifiex_dbg(priv->adapter, INFO, "info: management frame transmitted\n"); 265 return 0; 266 } 267 268 /* 269 * CFG802.11 operation handler to register a mgmt frame. 270 */ 271 static void 272 mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy, 273 struct wireless_dev *wdev, 274 u16 frame_type, bool reg) 275 { 276 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 277 u32 mask; 278 279 if (reg) 280 mask = priv->mgmt_frame_mask | BIT(frame_type >> 4); 281 else 282 mask = priv->mgmt_frame_mask & ~BIT(frame_type >> 4); 283 284 if (mask != priv->mgmt_frame_mask) { 285 priv->mgmt_frame_mask = mask; 286 mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG, 287 HostCmd_ACT_GEN_SET, 0, 288 &priv->mgmt_frame_mask, false); 289 mwifiex_dbg(priv->adapter, INFO, "info: mgmt frame registered\n"); 290 } 291 } 292 293 /* 294 * CFG802.11 operation handler to remain on channel. 295 */ 296 static int 297 mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy, 298 struct wireless_dev *wdev, 299 struct ieee80211_channel *chan, 300 unsigned int duration, u64 *cookie) 301 { 302 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 303 int ret; 304 305 if (!chan || !cookie) { 306 mwifiex_dbg(priv->adapter, ERROR, "Invalid parameter for ROC\n"); 307 return -EINVAL; 308 } 309 310 if (priv->roc_cfg.cookie) { 311 mwifiex_dbg(priv->adapter, INFO, 312 "info: ongoing ROC, cookie = 0x%llx\n", 313 priv->roc_cfg.cookie); 314 return -EBUSY; 315 } 316 317 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan, 318 duration); 319 320 if (!ret) { 321 *cookie = prandom_u32() | 1; 322 priv->roc_cfg.cookie = *cookie; 323 priv->roc_cfg.chan = *chan; 324 325 cfg80211_ready_on_channel(wdev, *cookie, chan, 326 duration, GFP_ATOMIC); 327 328 mwifiex_dbg(priv->adapter, INFO, 329 "info: ROC, cookie = 0x%llx\n", *cookie); 330 } 331 332 return ret; 333 } 334 335 /* 336 * CFG802.11 operation handler to cancel remain on channel. 337 */ 338 static int 339 mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy, 340 struct wireless_dev *wdev, u64 cookie) 341 { 342 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 343 int ret; 344 345 if (cookie != priv->roc_cfg.cookie) 346 return -ENOENT; 347 348 ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE, 349 &priv->roc_cfg.chan, 0); 350 351 if (!ret) { 352 cfg80211_remain_on_channel_expired(wdev, cookie, 353 &priv->roc_cfg.chan, 354 GFP_ATOMIC); 355 356 memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg)); 357 358 mwifiex_dbg(priv->adapter, INFO, 359 "info: cancel ROC, cookie = 0x%llx\n", cookie); 360 } 361 362 return ret; 363 } 364 365 /* 366 * CFG802.11 operation handler to set Tx power. 367 */ 368 static int 369 mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy, 370 struct wireless_dev *wdev, 371 enum nl80211_tx_power_setting type, 372 int mbm) 373 { 374 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 375 struct mwifiex_private *priv; 376 struct mwifiex_power_cfg power_cfg; 377 int dbm = MBM_TO_DBM(mbm); 378 379 if (type == NL80211_TX_POWER_FIXED) { 380 power_cfg.is_power_auto = 0; 381 power_cfg.power_level = dbm; 382 } else { 383 power_cfg.is_power_auto = 1; 384 } 385 386 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 387 388 return mwifiex_set_tx_power(priv, &power_cfg); 389 } 390 391 /* 392 * CFG802.11 operation handler to get Tx power. 393 */ 394 static int 395 mwifiex_cfg80211_get_tx_power(struct wiphy *wiphy, 396 struct wireless_dev *wdev, 397 int *dbm) 398 { 399 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 400 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 401 MWIFIEX_BSS_ROLE_ANY); 402 int ret = mwifiex_send_cmd(priv, HostCmd_CMD_RF_TX_PWR, 403 HostCmd_ACT_GEN_GET, 0, NULL, true); 404 405 if (ret < 0) 406 return ret; 407 408 /* tx_power_level is set in HostCmd_CMD_RF_TX_PWR command handler */ 409 *dbm = priv->tx_power_level; 410 411 return 0; 412 } 413 414 /* 415 * CFG802.11 operation handler to set Power Save option. 416 * 417 * The timeout value, if provided, is currently ignored. 418 */ 419 static int 420 mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy, 421 struct net_device *dev, 422 bool enabled, int timeout) 423 { 424 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 425 u32 ps_mode; 426 427 if (timeout) 428 mwifiex_dbg(priv->adapter, INFO, 429 "info: ignore timeout value for IEEE Power Save\n"); 430 431 ps_mode = enabled; 432 433 return mwifiex_drv_set_power(priv, &ps_mode); 434 } 435 436 /* 437 * CFG802.11 operation handler to set the default network key. 438 */ 439 static int 440 mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev, 441 u8 key_index, bool unicast, 442 bool multicast) 443 { 444 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev); 445 446 /* Return if WEP key not configured */ 447 if (!priv->sec_info.wep_enabled) 448 return 0; 449 450 if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) { 451 priv->wep_key_curr_index = key_index; 452 } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, 453 NULL, 0)) { 454 mwifiex_dbg(priv->adapter, ERROR, "set default Tx key index\n"); 455 return -EFAULT; 456 } 457 458 return 0; 459 } 460 461 /* 462 * CFG802.11 operation handler to add a network key. 463 */ 464 static int 465 mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev, 466 u8 key_index, bool pairwise, const u8 *mac_addr, 467 struct key_params *params) 468 { 469 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev); 470 struct mwifiex_wep_key *wep_key; 471 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 472 const u8 *peer_mac = pairwise ? mac_addr : bc_mac; 473 474 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP && 475 (params->cipher == WLAN_CIPHER_SUITE_WEP40 || 476 params->cipher == WLAN_CIPHER_SUITE_WEP104)) { 477 if (params->key && params->key_len) { 478 wep_key = &priv->wep_key[key_index]; 479 memset(wep_key, 0, sizeof(struct mwifiex_wep_key)); 480 memcpy(wep_key->key_material, params->key, 481 params->key_len); 482 wep_key->key_index = key_index; 483 wep_key->key_length = params->key_len; 484 priv->sec_info.wep_enabled = 1; 485 } 486 return 0; 487 } 488 489 if (mwifiex_set_encode(priv, params, params->key, params->key_len, 490 key_index, peer_mac, 0)) { 491 mwifiex_dbg(priv->adapter, ERROR, "crypto keys added\n"); 492 return -EFAULT; 493 } 494 495 return 0; 496 } 497 498 /* 499 * CFG802.11 operation handler to set default mgmt key. 500 */ 501 static int 502 mwifiex_cfg80211_set_default_mgmt_key(struct wiphy *wiphy, 503 struct net_device *netdev, 504 u8 key_index) 505 { 506 struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev); 507 struct mwifiex_ds_encrypt_key encrypt_key; 508 509 wiphy_dbg(wiphy, "set default mgmt key, key index=%d\n", key_index); 510 511 memset(&encrypt_key, 0, sizeof(struct mwifiex_ds_encrypt_key)); 512 encrypt_key.key_len = WLAN_KEY_LEN_CCMP; 513 encrypt_key.key_index = key_index; 514 encrypt_key.is_igtk_def_key = true; 515 eth_broadcast_addr(encrypt_key.mac_addr); 516 517 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_KEY_MATERIAL, 518 HostCmd_ACT_GEN_SET, true, &encrypt_key, true); 519 } 520 521 /* 522 * This function sends domain information to the firmware. 523 * 524 * The following information are passed to the firmware - 525 * - Country codes 526 * - Sub bands (first channel, number of channels, maximum Tx power) 527 */ 528 int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy) 529 { 530 u8 no_of_triplet = 0; 531 struct ieee80211_country_ie_triplet *t; 532 u8 no_of_parsed_chan = 0; 533 u8 first_chan = 0, next_chan = 0, max_pwr = 0; 534 u8 i, flag = 0; 535 enum nl80211_band band; 536 struct ieee80211_supported_band *sband; 537 struct ieee80211_channel *ch; 538 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 539 struct mwifiex_private *priv; 540 struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg; 541 542 /* Set country code */ 543 domain_info->country_code[0] = adapter->country_code[0]; 544 domain_info->country_code[1] = adapter->country_code[1]; 545 domain_info->country_code[2] = ' '; 546 547 band = mwifiex_band_to_radio_type(adapter->config_bands); 548 if (!wiphy->bands[band]) { 549 mwifiex_dbg(adapter, ERROR, 550 "11D: setting domain info in FW\n"); 551 return -1; 552 } 553 554 sband = wiphy->bands[band]; 555 556 for (i = 0; i < sband->n_channels ; i++) { 557 ch = &sband->channels[i]; 558 if (ch->flags & IEEE80211_CHAN_DISABLED) 559 continue; 560 561 if (!flag) { 562 flag = 1; 563 first_chan = (u32) ch->hw_value; 564 next_chan = first_chan; 565 max_pwr = ch->max_power; 566 no_of_parsed_chan = 1; 567 continue; 568 } 569 570 if (ch->hw_value == next_chan + 1 && 571 ch->max_power == max_pwr) { 572 next_chan++; 573 no_of_parsed_chan++; 574 } else { 575 t = &domain_info->triplet[no_of_triplet]; 576 t->chans.first_channel = first_chan; 577 t->chans.num_channels = no_of_parsed_chan; 578 t->chans.max_power = max_pwr; 579 no_of_triplet++; 580 first_chan = (u32) ch->hw_value; 581 next_chan = first_chan; 582 max_pwr = ch->max_power; 583 no_of_parsed_chan = 1; 584 } 585 } 586 587 if (flag) { 588 t = &domain_info->triplet[no_of_triplet]; 589 t->chans.first_channel = first_chan; 590 t->chans.num_channels = no_of_parsed_chan; 591 t->chans.max_power = max_pwr; 592 no_of_triplet++; 593 } 594 595 domain_info->no_of_triplet = no_of_triplet; 596 597 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 598 599 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11D_DOMAIN_INFO, 600 HostCmd_ACT_GEN_SET, 0, NULL, false)) { 601 mwifiex_dbg(adapter, INFO, 602 "11D: setting domain info in FW\n"); 603 return -1; 604 } 605 606 return 0; 607 } 608 609 static void mwifiex_reg_apply_radar_flags(struct wiphy *wiphy) 610 { 611 struct ieee80211_supported_band *sband; 612 struct ieee80211_channel *chan; 613 unsigned int i; 614 615 if (!wiphy->bands[NL80211_BAND_5GHZ]) 616 return; 617 sband = wiphy->bands[NL80211_BAND_5GHZ]; 618 619 for (i = 0; i < sband->n_channels; i++) { 620 chan = &sband->channels[i]; 621 if ((!(chan->flags & IEEE80211_CHAN_DISABLED)) && 622 (chan->flags & IEEE80211_CHAN_RADAR)) 623 chan->flags |= IEEE80211_CHAN_NO_IR; 624 } 625 } 626 627 /* 628 * CFG802.11 regulatory domain callback function. 629 * 630 * This function is called when the regulatory domain is changed due to the 631 * following reasons - 632 * - Set by driver 633 * - Set by system core 634 * - Set by user 635 * - Set bt Country IE 636 */ 637 static void mwifiex_reg_notifier(struct wiphy *wiphy, 638 struct regulatory_request *request) 639 { 640 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 641 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 642 MWIFIEX_BSS_ROLE_ANY); 643 mwifiex_dbg(adapter, INFO, 644 "info: cfg80211 regulatory domain callback for %c%c\n", 645 request->alpha2[0], request->alpha2[1]); 646 mwifiex_reg_apply_radar_flags(wiphy); 647 648 switch (request->initiator) { 649 case NL80211_REGDOM_SET_BY_DRIVER: 650 case NL80211_REGDOM_SET_BY_CORE: 651 case NL80211_REGDOM_SET_BY_USER: 652 case NL80211_REGDOM_SET_BY_COUNTRY_IE: 653 break; 654 default: 655 mwifiex_dbg(adapter, ERROR, 656 "unknown regdom initiator: %d\n", 657 request->initiator); 658 return; 659 } 660 661 /* Don't send world or same regdom info to firmware */ 662 if (strncmp(request->alpha2, "00", 2) && 663 strncmp(request->alpha2, adapter->country_code, 664 sizeof(request->alpha2))) { 665 memcpy(adapter->country_code, request->alpha2, 666 sizeof(request->alpha2)); 667 mwifiex_send_domain_info_cmd_fw(wiphy); 668 mwifiex_dnld_txpwr_table(priv); 669 } 670 } 671 672 /* 673 * This function sets the fragmentation threshold. 674 * 675 * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE 676 * and MWIFIEX_FRAG_MAX_VALUE. 677 */ 678 static int 679 mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr) 680 { 681 if (frag_thr < MWIFIEX_FRAG_MIN_VALUE || 682 frag_thr > MWIFIEX_FRAG_MAX_VALUE) 683 frag_thr = MWIFIEX_FRAG_MAX_VALUE; 684 685 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 686 HostCmd_ACT_GEN_SET, FRAG_THRESH_I, 687 &frag_thr, true); 688 } 689 690 /* 691 * This function sets the RTS threshold. 692 693 * The rts value must lie between MWIFIEX_RTS_MIN_VALUE 694 * and MWIFIEX_RTS_MAX_VALUE. 695 */ 696 static int 697 mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr) 698 { 699 if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE) 700 rts_thr = MWIFIEX_RTS_MAX_VALUE; 701 702 return mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 703 HostCmd_ACT_GEN_SET, RTS_THRESH_I, 704 &rts_thr, true); 705 } 706 707 /* 708 * CFG802.11 operation handler to set wiphy parameters. 709 * 710 * This function can be used to set the RTS threshold and the 711 * Fragmentation threshold of the driver. 712 */ 713 static int 714 mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) 715 { 716 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 717 struct mwifiex_private *priv; 718 struct mwifiex_uap_bss_param *bss_cfg; 719 int ret; 720 721 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 722 723 switch (priv->bss_role) { 724 case MWIFIEX_BSS_ROLE_UAP: 725 if (priv->bss_started) { 726 mwifiex_dbg(adapter, ERROR, 727 "cannot change wiphy params when bss started"); 728 return -EINVAL; 729 } 730 731 bss_cfg = kzalloc(sizeof(*bss_cfg), GFP_KERNEL); 732 if (!bss_cfg) 733 return -ENOMEM; 734 735 mwifiex_set_sys_config_invalid_data(bss_cfg); 736 737 if (changed & WIPHY_PARAM_RTS_THRESHOLD) 738 bss_cfg->rts_threshold = wiphy->rts_threshold; 739 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) 740 bss_cfg->frag_threshold = wiphy->frag_threshold; 741 if (changed & WIPHY_PARAM_RETRY_LONG) 742 bss_cfg->retry_limit = wiphy->retry_long; 743 744 ret = mwifiex_send_cmd(priv, HostCmd_CMD_UAP_SYS_CONFIG, 745 HostCmd_ACT_GEN_SET, 746 UAP_BSS_PARAMS_I, bss_cfg, 747 false); 748 749 kfree(bss_cfg); 750 if (ret) { 751 mwifiex_dbg(adapter, ERROR, 752 "Failed to set wiphy phy params\n"); 753 return ret; 754 } 755 break; 756 757 case MWIFIEX_BSS_ROLE_STA: 758 if (priv->media_connected) { 759 mwifiex_dbg(adapter, ERROR, 760 "cannot change wiphy params when connected"); 761 return -EINVAL; 762 } 763 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 764 ret = mwifiex_set_rts(priv, 765 wiphy->rts_threshold); 766 if (ret) 767 return ret; 768 } 769 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 770 ret = mwifiex_set_frag(priv, 771 wiphy->frag_threshold); 772 if (ret) 773 return ret; 774 } 775 break; 776 } 777 778 return 0; 779 } 780 781 static int 782 mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv) 783 { 784 u16 mode = P2P_MODE_DISABLE; 785 786 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, 787 HostCmd_ACT_GEN_SET, 0, &mode, true)) 788 return -1; 789 790 return 0; 791 } 792 793 /* 794 * This function initializes the functionalities for P2P client. 795 * The P2P client initialization sequence is: 796 * disable -> device -> client 797 */ 798 static int 799 mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv) 800 { 801 u16 mode; 802 803 if (mwifiex_cfg80211_deinit_p2p(priv)) 804 return -1; 805 806 mode = P2P_MODE_DEVICE; 807 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, 808 HostCmd_ACT_GEN_SET, 0, &mode, true)) 809 return -1; 810 811 mode = P2P_MODE_CLIENT; 812 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, 813 HostCmd_ACT_GEN_SET, 0, &mode, true)) 814 return -1; 815 816 return 0; 817 } 818 819 /* 820 * This function initializes the functionalities for P2P GO. 821 * The P2P GO initialization sequence is: 822 * disable -> device -> GO 823 */ 824 static int 825 mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv) 826 { 827 u16 mode; 828 829 if (mwifiex_cfg80211_deinit_p2p(priv)) 830 return -1; 831 832 mode = P2P_MODE_DEVICE; 833 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, 834 HostCmd_ACT_GEN_SET, 0, &mode, true)) 835 return -1; 836 837 mode = P2P_MODE_GO; 838 if (mwifiex_send_cmd(priv, HostCmd_CMD_P2P_MODE_CFG, 839 HostCmd_ACT_GEN_SET, 0, &mode, true)) 840 return -1; 841 842 return 0; 843 } 844 845 static int mwifiex_deinit_priv_params(struct mwifiex_private *priv) 846 { 847 struct mwifiex_adapter *adapter = priv->adapter; 848 unsigned long flags; 849 850 priv->mgmt_frame_mask = 0; 851 if (mwifiex_send_cmd(priv, HostCmd_CMD_MGMT_FRAME_REG, 852 HostCmd_ACT_GEN_SET, 0, 853 &priv->mgmt_frame_mask, false)) { 854 mwifiex_dbg(adapter, ERROR, 855 "could not unregister mgmt frame rx\n"); 856 return -1; 857 } 858 859 mwifiex_deauthenticate(priv, NULL); 860 861 spin_lock_irqsave(&adapter->main_proc_lock, flags); 862 adapter->main_locked = true; 863 if (adapter->mwifiex_processing) { 864 spin_unlock_irqrestore(&adapter->main_proc_lock, flags); 865 flush_workqueue(adapter->workqueue); 866 } else { 867 spin_unlock_irqrestore(&adapter->main_proc_lock, flags); 868 } 869 870 spin_lock_irqsave(&adapter->rx_proc_lock, flags); 871 adapter->rx_locked = true; 872 if (adapter->rx_processing) { 873 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); 874 flush_workqueue(adapter->rx_workqueue); 875 } else { 876 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); 877 } 878 879 mwifiex_free_priv(priv); 880 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 881 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; 882 priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM; 883 884 return 0; 885 } 886 887 static int 888 mwifiex_init_new_priv_params(struct mwifiex_private *priv, 889 struct net_device *dev, 890 enum nl80211_iftype type) 891 { 892 struct mwifiex_adapter *adapter = priv->adapter; 893 unsigned long flags; 894 895 mwifiex_init_priv(priv); 896 897 priv->bss_mode = type; 898 priv->wdev.iftype = type; 899 900 mwifiex_init_priv_params(priv, priv->netdev); 901 priv->bss_started = 0; 902 903 switch (type) { 904 case NL80211_IFTYPE_STATION: 905 case NL80211_IFTYPE_ADHOC: 906 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 907 break; 908 case NL80211_IFTYPE_P2P_CLIENT: 909 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 910 break; 911 case NL80211_IFTYPE_P2P_GO: 912 priv->bss_role = MWIFIEX_BSS_ROLE_UAP; 913 break; 914 case NL80211_IFTYPE_AP: 915 priv->bss_role = MWIFIEX_BSS_ROLE_UAP; 916 break; 917 default: 918 mwifiex_dbg(adapter, ERROR, 919 "%s: changing to %d not supported\n", 920 dev->name, type); 921 return -EOPNOTSUPP; 922 } 923 924 spin_lock_irqsave(&adapter->main_proc_lock, flags); 925 adapter->main_locked = false; 926 spin_unlock_irqrestore(&adapter->main_proc_lock, flags); 927 928 spin_lock_irqsave(&adapter->rx_proc_lock, flags); 929 adapter->rx_locked = false; 930 spin_unlock_irqrestore(&adapter->rx_proc_lock, flags); 931 932 mwifiex_set_mac_address(priv, dev, false, NULL); 933 934 return 0; 935 } 936 937 static int 938 mwifiex_change_vif_to_p2p(struct net_device *dev, 939 enum nl80211_iftype curr_iftype, 940 enum nl80211_iftype type, 941 struct vif_params *params) 942 { 943 struct mwifiex_private *priv; 944 struct mwifiex_adapter *adapter; 945 946 priv = mwifiex_netdev_get_priv(dev); 947 948 if (!priv) 949 return -1; 950 951 adapter = priv->adapter; 952 953 if (adapter->curr_iface_comb.p2p_intf == 954 adapter->iface_limit.p2p_intf) { 955 mwifiex_dbg(adapter, ERROR, 956 "cannot create multiple P2P ifaces\n"); 957 return -1; 958 } 959 960 mwifiex_dbg(adapter, INFO, 961 "%s: changing role to p2p\n", dev->name); 962 963 if (mwifiex_deinit_priv_params(priv)) 964 return -1; 965 if (mwifiex_init_new_priv_params(priv, dev, type)) 966 return -1; 967 968 switch (type) { 969 case NL80211_IFTYPE_P2P_CLIENT: 970 if (mwifiex_cfg80211_init_p2p_client(priv)) 971 return -EFAULT; 972 break; 973 case NL80211_IFTYPE_P2P_GO: 974 if (mwifiex_cfg80211_init_p2p_go(priv)) 975 return -EFAULT; 976 break; 977 default: 978 mwifiex_dbg(adapter, ERROR, 979 "%s: changing to %d not supported\n", 980 dev->name, type); 981 return -EOPNOTSUPP; 982 } 983 984 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 985 HostCmd_ACT_GEN_SET, 0, NULL, true)) 986 return -1; 987 988 if (mwifiex_sta_init_cmd(priv, false, false)) 989 return -1; 990 991 switch (curr_iftype) { 992 case NL80211_IFTYPE_STATION: 993 case NL80211_IFTYPE_ADHOC: 994 adapter->curr_iface_comb.sta_intf--; 995 break; 996 case NL80211_IFTYPE_AP: 997 adapter->curr_iface_comb.uap_intf--; 998 break; 999 default: 1000 break; 1001 } 1002 1003 adapter->curr_iface_comb.p2p_intf++; 1004 dev->ieee80211_ptr->iftype = type; 1005 1006 return 0; 1007 } 1008 1009 static int 1010 mwifiex_change_vif_to_sta_adhoc(struct net_device *dev, 1011 enum nl80211_iftype curr_iftype, 1012 enum nl80211_iftype type, 1013 struct vif_params *params) 1014 { 1015 struct mwifiex_private *priv; 1016 struct mwifiex_adapter *adapter; 1017 1018 priv = mwifiex_netdev_get_priv(dev); 1019 1020 if (!priv) 1021 return -1; 1022 1023 adapter = priv->adapter; 1024 1025 if ((curr_iftype != NL80211_IFTYPE_P2P_CLIENT && 1026 curr_iftype != NL80211_IFTYPE_P2P_GO) && 1027 (adapter->curr_iface_comb.sta_intf == 1028 adapter->iface_limit.sta_intf)) { 1029 mwifiex_dbg(adapter, ERROR, 1030 "cannot create multiple station/adhoc ifaces\n"); 1031 return -1; 1032 } 1033 1034 if (type == NL80211_IFTYPE_STATION) 1035 mwifiex_dbg(adapter, INFO, 1036 "%s: changing role to station\n", dev->name); 1037 else 1038 mwifiex_dbg(adapter, INFO, 1039 "%s: changing role to adhoc\n", dev->name); 1040 1041 if (mwifiex_deinit_priv_params(priv)) 1042 return -1; 1043 if (mwifiex_init_new_priv_params(priv, dev, type)) 1044 return -1; 1045 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1046 HostCmd_ACT_GEN_SET, 0, NULL, true)) 1047 return -1; 1048 if (mwifiex_sta_init_cmd(priv, false, false)) 1049 return -1; 1050 1051 switch (curr_iftype) { 1052 case NL80211_IFTYPE_P2P_CLIENT: 1053 case NL80211_IFTYPE_P2P_GO: 1054 adapter->curr_iface_comb.p2p_intf--; 1055 break; 1056 case NL80211_IFTYPE_AP: 1057 adapter->curr_iface_comb.uap_intf--; 1058 break; 1059 default: 1060 break; 1061 } 1062 1063 adapter->curr_iface_comb.sta_intf++; 1064 dev->ieee80211_ptr->iftype = type; 1065 return 0; 1066 } 1067 1068 static int 1069 mwifiex_change_vif_to_ap(struct net_device *dev, 1070 enum nl80211_iftype curr_iftype, 1071 enum nl80211_iftype type, 1072 struct vif_params *params) 1073 { 1074 struct mwifiex_private *priv; 1075 struct mwifiex_adapter *adapter; 1076 1077 priv = mwifiex_netdev_get_priv(dev); 1078 1079 if (!priv) 1080 return -1; 1081 1082 adapter = priv->adapter; 1083 1084 if (adapter->curr_iface_comb.uap_intf == 1085 adapter->iface_limit.uap_intf) { 1086 mwifiex_dbg(adapter, ERROR, 1087 "cannot create multiple AP ifaces\n"); 1088 return -1; 1089 } 1090 1091 mwifiex_dbg(adapter, INFO, 1092 "%s: changing role to AP\n", dev->name); 1093 1094 if (mwifiex_deinit_priv_params(priv)) 1095 return -1; 1096 if (mwifiex_init_new_priv_params(priv, dev, type)) 1097 return -1; 1098 if (mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1099 HostCmd_ACT_GEN_SET, 0, NULL, true)) 1100 return -1; 1101 if (mwifiex_sta_init_cmd(priv, false, false)) 1102 return -1; 1103 1104 switch (curr_iftype) { 1105 case NL80211_IFTYPE_P2P_CLIENT: 1106 case NL80211_IFTYPE_P2P_GO: 1107 adapter->curr_iface_comb.p2p_intf--; 1108 break; 1109 case NL80211_IFTYPE_STATION: 1110 case NL80211_IFTYPE_ADHOC: 1111 adapter->curr_iface_comb.sta_intf--; 1112 break; 1113 default: 1114 break; 1115 } 1116 1117 adapter->curr_iface_comb.uap_intf++; 1118 dev->ieee80211_ptr->iftype = type; 1119 return 0; 1120 } 1121 /* 1122 * CFG802.11 operation handler to change interface type. 1123 */ 1124 static int 1125 mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy, 1126 struct net_device *dev, 1127 enum nl80211_iftype type, 1128 struct vif_params *params) 1129 { 1130 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1131 enum nl80211_iftype curr_iftype = dev->ieee80211_ptr->iftype; 1132 1133 if (priv->scan_request) { 1134 mwifiex_dbg(priv->adapter, ERROR, 1135 "change virtual interface: scan in process\n"); 1136 return -EBUSY; 1137 } 1138 1139 switch (curr_iftype) { 1140 case NL80211_IFTYPE_ADHOC: 1141 switch (type) { 1142 case NL80211_IFTYPE_STATION: 1143 priv->bss_mode = type; 1144 priv->sec_info.authentication_mode = 1145 NL80211_AUTHTYPE_OPEN_SYSTEM; 1146 dev->ieee80211_ptr->iftype = type; 1147 mwifiex_deauthenticate(priv, NULL); 1148 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1149 HostCmd_ACT_GEN_SET, 0, NULL, 1150 true); 1151 case NL80211_IFTYPE_P2P_CLIENT: 1152 case NL80211_IFTYPE_P2P_GO: 1153 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1154 type, params); 1155 case NL80211_IFTYPE_AP: 1156 return mwifiex_change_vif_to_ap(dev, curr_iftype, type, 1157 params); 1158 case NL80211_IFTYPE_UNSPECIFIED: 1159 mwifiex_dbg(priv->adapter, INFO, 1160 "%s: kept type as IBSS\n", dev->name); 1161 /* fall through */ 1162 case NL80211_IFTYPE_ADHOC: /* This shouldn't happen */ 1163 return 0; 1164 default: 1165 mwifiex_dbg(priv->adapter, ERROR, 1166 "%s: changing to %d not supported\n", 1167 dev->name, type); 1168 return -EOPNOTSUPP; 1169 } 1170 break; 1171 case NL80211_IFTYPE_STATION: 1172 switch (type) { 1173 case NL80211_IFTYPE_ADHOC: 1174 priv->bss_mode = type; 1175 priv->sec_info.authentication_mode = 1176 NL80211_AUTHTYPE_OPEN_SYSTEM; 1177 dev->ieee80211_ptr->iftype = type; 1178 mwifiex_deauthenticate(priv, NULL); 1179 return mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 1180 HostCmd_ACT_GEN_SET, 0, NULL, 1181 true); 1182 case NL80211_IFTYPE_P2P_CLIENT: 1183 case NL80211_IFTYPE_P2P_GO: 1184 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1185 type, params); 1186 case NL80211_IFTYPE_AP: 1187 return mwifiex_change_vif_to_ap(dev, curr_iftype, type, 1188 params); 1189 case NL80211_IFTYPE_UNSPECIFIED: 1190 mwifiex_dbg(priv->adapter, INFO, 1191 "%s: kept type as STA\n", dev->name); 1192 /* fall through */ 1193 case NL80211_IFTYPE_STATION: /* This shouldn't happen */ 1194 return 0; 1195 default: 1196 mwifiex_dbg(priv->adapter, ERROR, 1197 "%s: changing to %d not supported\n", 1198 dev->name, type); 1199 return -EOPNOTSUPP; 1200 } 1201 break; 1202 case NL80211_IFTYPE_AP: 1203 switch (type) { 1204 case NL80211_IFTYPE_ADHOC: 1205 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype, 1206 type, params); 1207 break; 1208 case NL80211_IFTYPE_P2P_CLIENT: 1209 case NL80211_IFTYPE_P2P_GO: 1210 return mwifiex_change_vif_to_p2p(dev, curr_iftype, 1211 type, params); 1212 case NL80211_IFTYPE_UNSPECIFIED: 1213 mwifiex_dbg(priv->adapter, INFO, 1214 "%s: kept type as AP\n", dev->name); 1215 /* fall through */ 1216 case NL80211_IFTYPE_AP: /* This shouldn't happen */ 1217 return 0; 1218 default: 1219 mwifiex_dbg(priv->adapter, ERROR, 1220 "%s: changing to %d not supported\n", 1221 dev->name, type); 1222 return -EOPNOTSUPP; 1223 } 1224 break; 1225 case NL80211_IFTYPE_P2P_CLIENT: 1226 case NL80211_IFTYPE_P2P_GO: 1227 switch (type) { 1228 case NL80211_IFTYPE_STATION: 1229 if (mwifiex_cfg80211_deinit_p2p(priv)) 1230 return -EFAULT; 1231 priv->adapter->curr_iface_comb.p2p_intf--; 1232 priv->adapter->curr_iface_comb.sta_intf++; 1233 dev->ieee80211_ptr->iftype = type; 1234 if (mwifiex_deinit_priv_params(priv)) 1235 return -1; 1236 if (mwifiex_init_new_priv_params(priv, dev, type)) 1237 return -1; 1238 if (mwifiex_sta_init_cmd(priv, false, false)) 1239 return -1; 1240 break; 1241 case NL80211_IFTYPE_ADHOC: 1242 if (mwifiex_cfg80211_deinit_p2p(priv)) 1243 return -EFAULT; 1244 return mwifiex_change_vif_to_sta_adhoc(dev, curr_iftype, 1245 type, params); 1246 break; 1247 case NL80211_IFTYPE_AP: 1248 if (mwifiex_cfg80211_deinit_p2p(priv)) 1249 return -EFAULT; 1250 return mwifiex_change_vif_to_ap(dev, curr_iftype, type, 1251 params); 1252 case NL80211_IFTYPE_UNSPECIFIED: 1253 mwifiex_dbg(priv->adapter, INFO, 1254 "%s: kept type as P2P\n", dev->name); 1255 /* fall through */ 1256 case NL80211_IFTYPE_P2P_CLIENT: 1257 case NL80211_IFTYPE_P2P_GO: 1258 return 0; 1259 default: 1260 mwifiex_dbg(priv->adapter, ERROR, 1261 "%s: changing to %d not supported\n", 1262 dev->name, type); 1263 return -EOPNOTSUPP; 1264 } 1265 break; 1266 default: 1267 mwifiex_dbg(priv->adapter, ERROR, 1268 "%s: unknown iftype: %d\n", 1269 dev->name, dev->ieee80211_ptr->iftype); 1270 return -EOPNOTSUPP; 1271 } 1272 1273 1274 return 0; 1275 } 1276 1277 static void 1278 mwifiex_parse_htinfo(struct mwifiex_private *priv, u8 tx_htinfo, 1279 struct rate_info *rate) 1280 { 1281 struct mwifiex_adapter *adapter = priv->adapter; 1282 1283 if (adapter->is_hw_11ac_capable) { 1284 /* bit[1-0]: 00=LG 01=HT 10=VHT */ 1285 if (tx_htinfo & BIT(0)) { 1286 /* HT */ 1287 rate->mcs = priv->tx_rate; 1288 rate->flags |= RATE_INFO_FLAGS_MCS; 1289 } 1290 if (tx_htinfo & BIT(1)) { 1291 /* VHT */ 1292 rate->mcs = priv->tx_rate & 0x0F; 1293 rate->flags |= RATE_INFO_FLAGS_VHT_MCS; 1294 } 1295 1296 if (tx_htinfo & (BIT(1) | BIT(0))) { 1297 /* HT or VHT */ 1298 switch (tx_htinfo & (BIT(3) | BIT(2))) { 1299 case 0: 1300 rate->bw = RATE_INFO_BW_20; 1301 break; 1302 case (BIT(2)): 1303 rate->bw = RATE_INFO_BW_40; 1304 break; 1305 case (BIT(3)): 1306 rate->bw = RATE_INFO_BW_80; 1307 break; 1308 case (BIT(3) | BIT(2)): 1309 rate->bw = RATE_INFO_BW_160; 1310 break; 1311 } 1312 1313 if (tx_htinfo & BIT(4)) 1314 rate->flags |= RATE_INFO_FLAGS_SHORT_GI; 1315 1316 if ((priv->tx_rate >> 4) == 1) 1317 rate->nss = 2; 1318 else 1319 rate->nss = 1; 1320 } 1321 } else { 1322 /* 1323 * Bit 0 in tx_htinfo indicates that current Tx rate 1324 * is 11n rate. Valid MCS index values for us are 0 to 15. 1325 */ 1326 if ((tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) { 1327 rate->mcs = priv->tx_rate; 1328 rate->flags |= RATE_INFO_FLAGS_MCS; 1329 rate->bw = RATE_INFO_BW_20; 1330 if (tx_htinfo & BIT(1)) 1331 rate->bw = RATE_INFO_BW_40; 1332 if (tx_htinfo & BIT(2)) 1333 rate->flags |= RATE_INFO_FLAGS_SHORT_GI; 1334 } 1335 } 1336 } 1337 1338 /* 1339 * This function dumps the station information on a buffer. 1340 * 1341 * The following information are shown - 1342 * - Total bytes transmitted 1343 * - Total bytes received 1344 * - Total packets transmitted 1345 * - Total packets received 1346 * - Signal quality level 1347 * - Transmission rate 1348 */ 1349 static int 1350 mwifiex_dump_station_info(struct mwifiex_private *priv, 1351 struct mwifiex_sta_node *node, 1352 struct station_info *sinfo) 1353 { 1354 u32 rate; 1355 1356 sinfo->filled = BIT(NL80211_STA_INFO_RX_BYTES) | BIT(NL80211_STA_INFO_TX_BYTES) | 1357 BIT(NL80211_STA_INFO_RX_PACKETS) | BIT(NL80211_STA_INFO_TX_PACKETS) | 1358 BIT(NL80211_STA_INFO_TX_BITRATE) | 1359 BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_SIGNAL_AVG); 1360 1361 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { 1362 if (!node) 1363 return -ENOENT; 1364 1365 sinfo->filled |= BIT(NL80211_STA_INFO_INACTIVE_TIME) | 1366 BIT(NL80211_STA_INFO_TX_FAILED); 1367 sinfo->inactive_time = 1368 jiffies_to_msecs(jiffies - node->stats.last_rx); 1369 1370 sinfo->signal = node->stats.rssi; 1371 sinfo->signal_avg = node->stats.rssi; 1372 sinfo->rx_bytes = node->stats.rx_bytes; 1373 sinfo->tx_bytes = node->stats.tx_bytes; 1374 sinfo->rx_packets = node->stats.rx_packets; 1375 sinfo->tx_packets = node->stats.tx_packets; 1376 sinfo->tx_failed = node->stats.tx_failed; 1377 1378 mwifiex_parse_htinfo(priv, node->stats.last_tx_htinfo, 1379 &sinfo->txrate); 1380 sinfo->txrate.legacy = node->stats.last_tx_rate * 5; 1381 1382 return 0; 1383 } 1384 1385 /* Get signal information from the firmware */ 1386 if (mwifiex_send_cmd(priv, HostCmd_CMD_RSSI_INFO, 1387 HostCmd_ACT_GEN_GET, 0, NULL, true)) { 1388 mwifiex_dbg(priv->adapter, ERROR, 1389 "failed to get signal information\n"); 1390 return -EFAULT; 1391 } 1392 1393 if (mwifiex_drv_get_data_rate(priv, &rate)) { 1394 mwifiex_dbg(priv->adapter, ERROR, 1395 "getting data rate error\n"); 1396 return -EFAULT; 1397 } 1398 1399 /* Get DTIM period information from firmware */ 1400 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 1401 HostCmd_ACT_GEN_GET, DTIM_PERIOD_I, 1402 &priv->dtim_period, true); 1403 1404 mwifiex_parse_htinfo(priv, priv->tx_htinfo, &sinfo->txrate); 1405 1406 sinfo->signal_avg = priv->bcn_rssi_avg; 1407 sinfo->rx_bytes = priv->stats.rx_bytes; 1408 sinfo->tx_bytes = priv->stats.tx_bytes; 1409 sinfo->rx_packets = priv->stats.rx_packets; 1410 sinfo->tx_packets = priv->stats.tx_packets; 1411 sinfo->signal = priv->bcn_rssi_avg; 1412 /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */ 1413 sinfo->txrate.legacy = rate * 5; 1414 1415 if (priv->bss_mode == NL80211_IFTYPE_STATION) { 1416 sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM); 1417 sinfo->bss_param.flags = 0; 1418 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap & 1419 WLAN_CAPABILITY_SHORT_PREAMBLE) 1420 sinfo->bss_param.flags |= 1421 BSS_PARAM_FLAGS_SHORT_PREAMBLE; 1422 if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap & 1423 WLAN_CAPABILITY_SHORT_SLOT_TIME) 1424 sinfo->bss_param.flags |= 1425 BSS_PARAM_FLAGS_SHORT_SLOT_TIME; 1426 sinfo->bss_param.dtim_period = priv->dtim_period; 1427 sinfo->bss_param.beacon_interval = 1428 priv->curr_bss_params.bss_descriptor.beacon_period; 1429 } 1430 1431 return 0; 1432 } 1433 1434 /* 1435 * CFG802.11 operation handler to get station information. 1436 * 1437 * This function only works in connected mode, and dumps the 1438 * requested station information, if available. 1439 */ 1440 static int 1441 mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev, 1442 const u8 *mac, struct station_info *sinfo) 1443 { 1444 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1445 1446 if (!priv->media_connected) 1447 return -ENOENT; 1448 if (memcmp(mac, priv->cfg_bssid, ETH_ALEN)) 1449 return -ENOENT; 1450 1451 return mwifiex_dump_station_info(priv, NULL, sinfo); 1452 } 1453 1454 /* 1455 * CFG802.11 operation handler to dump station information. 1456 */ 1457 static int 1458 mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev, 1459 int idx, u8 *mac, struct station_info *sinfo) 1460 { 1461 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1462 static struct mwifiex_sta_node *node; 1463 1464 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) && 1465 priv->media_connected && idx == 0) { 1466 ether_addr_copy(mac, priv->cfg_bssid); 1467 return mwifiex_dump_station_info(priv, NULL, sinfo); 1468 } else if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { 1469 mwifiex_send_cmd(priv, HOST_CMD_APCMD_STA_LIST, 1470 HostCmd_ACT_GEN_GET, 0, NULL, true); 1471 1472 if (node && (&node->list == &priv->sta_list)) { 1473 node = NULL; 1474 return -ENOENT; 1475 } 1476 1477 node = list_prepare_entry(node, &priv->sta_list, list); 1478 list_for_each_entry_continue(node, &priv->sta_list, list) { 1479 ether_addr_copy(mac, node->mac_addr); 1480 return mwifiex_dump_station_info(priv, node, sinfo); 1481 } 1482 } 1483 1484 return -ENOENT; 1485 } 1486 1487 static int 1488 mwifiex_cfg80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, 1489 int idx, struct survey_info *survey) 1490 { 1491 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1492 struct mwifiex_chan_stats *pchan_stats = priv->adapter->chan_stats; 1493 enum nl80211_band band; 1494 1495 mwifiex_dbg(priv->adapter, DUMP, "dump_survey idx=%d\n", idx); 1496 1497 memset(survey, 0, sizeof(struct survey_info)); 1498 1499 if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) && 1500 priv->media_connected && idx == 0) { 1501 u8 curr_bss_band = priv->curr_bss_params.band; 1502 u32 chan = priv->curr_bss_params.bss_descriptor.channel; 1503 1504 band = mwifiex_band_to_radio_type(curr_bss_band); 1505 survey->channel = ieee80211_get_channel(wiphy, 1506 ieee80211_channel_to_frequency(chan, band)); 1507 1508 if (priv->bcn_nf_last) { 1509 survey->filled = SURVEY_INFO_NOISE_DBM; 1510 survey->noise = priv->bcn_nf_last; 1511 } 1512 return 0; 1513 } 1514 1515 if (idx >= priv->adapter->num_in_chan_stats) 1516 return -ENOENT; 1517 1518 if (!pchan_stats[idx].cca_scan_dur) 1519 return 0; 1520 1521 band = pchan_stats[idx].bandcfg; 1522 survey->channel = ieee80211_get_channel(wiphy, 1523 ieee80211_channel_to_frequency(pchan_stats[idx].chan_num, band)); 1524 survey->filled = SURVEY_INFO_NOISE_DBM | 1525 SURVEY_INFO_TIME | 1526 SURVEY_INFO_TIME_BUSY; 1527 survey->noise = pchan_stats[idx].noise; 1528 survey->time = pchan_stats[idx].cca_scan_dur; 1529 survey->time_busy = pchan_stats[idx].cca_busy_dur; 1530 1531 return 0; 1532 } 1533 1534 /* Supported rates to be advertised to the cfg80211 */ 1535 static struct ieee80211_rate mwifiex_rates[] = { 1536 {.bitrate = 10, .hw_value = 2, }, 1537 {.bitrate = 20, .hw_value = 4, }, 1538 {.bitrate = 55, .hw_value = 11, }, 1539 {.bitrate = 110, .hw_value = 22, }, 1540 {.bitrate = 60, .hw_value = 12, }, 1541 {.bitrate = 90, .hw_value = 18, }, 1542 {.bitrate = 120, .hw_value = 24, }, 1543 {.bitrate = 180, .hw_value = 36, }, 1544 {.bitrate = 240, .hw_value = 48, }, 1545 {.bitrate = 360, .hw_value = 72, }, 1546 {.bitrate = 480, .hw_value = 96, }, 1547 {.bitrate = 540, .hw_value = 108, }, 1548 }; 1549 1550 /* Channel definitions to be advertised to cfg80211 */ 1551 static struct ieee80211_channel mwifiex_channels_2ghz[] = { 1552 {.center_freq = 2412, .hw_value = 1, }, 1553 {.center_freq = 2417, .hw_value = 2, }, 1554 {.center_freq = 2422, .hw_value = 3, }, 1555 {.center_freq = 2427, .hw_value = 4, }, 1556 {.center_freq = 2432, .hw_value = 5, }, 1557 {.center_freq = 2437, .hw_value = 6, }, 1558 {.center_freq = 2442, .hw_value = 7, }, 1559 {.center_freq = 2447, .hw_value = 8, }, 1560 {.center_freq = 2452, .hw_value = 9, }, 1561 {.center_freq = 2457, .hw_value = 10, }, 1562 {.center_freq = 2462, .hw_value = 11, }, 1563 {.center_freq = 2467, .hw_value = 12, }, 1564 {.center_freq = 2472, .hw_value = 13, }, 1565 {.center_freq = 2484, .hw_value = 14, }, 1566 }; 1567 1568 static struct ieee80211_supported_band mwifiex_band_2ghz = { 1569 .channels = mwifiex_channels_2ghz, 1570 .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz), 1571 .bitrates = mwifiex_rates, 1572 .n_bitrates = ARRAY_SIZE(mwifiex_rates), 1573 }; 1574 1575 static struct ieee80211_channel mwifiex_channels_5ghz[] = { 1576 {.center_freq = 5040, .hw_value = 8, }, 1577 {.center_freq = 5060, .hw_value = 12, }, 1578 {.center_freq = 5080, .hw_value = 16, }, 1579 {.center_freq = 5170, .hw_value = 34, }, 1580 {.center_freq = 5190, .hw_value = 38, }, 1581 {.center_freq = 5210, .hw_value = 42, }, 1582 {.center_freq = 5230, .hw_value = 46, }, 1583 {.center_freq = 5180, .hw_value = 36, }, 1584 {.center_freq = 5200, .hw_value = 40, }, 1585 {.center_freq = 5220, .hw_value = 44, }, 1586 {.center_freq = 5240, .hw_value = 48, }, 1587 {.center_freq = 5260, .hw_value = 52, }, 1588 {.center_freq = 5280, .hw_value = 56, }, 1589 {.center_freq = 5300, .hw_value = 60, }, 1590 {.center_freq = 5320, .hw_value = 64, }, 1591 {.center_freq = 5500, .hw_value = 100, }, 1592 {.center_freq = 5520, .hw_value = 104, }, 1593 {.center_freq = 5540, .hw_value = 108, }, 1594 {.center_freq = 5560, .hw_value = 112, }, 1595 {.center_freq = 5580, .hw_value = 116, }, 1596 {.center_freq = 5600, .hw_value = 120, }, 1597 {.center_freq = 5620, .hw_value = 124, }, 1598 {.center_freq = 5640, .hw_value = 128, }, 1599 {.center_freq = 5660, .hw_value = 132, }, 1600 {.center_freq = 5680, .hw_value = 136, }, 1601 {.center_freq = 5700, .hw_value = 140, }, 1602 {.center_freq = 5745, .hw_value = 149, }, 1603 {.center_freq = 5765, .hw_value = 153, }, 1604 {.center_freq = 5785, .hw_value = 157, }, 1605 {.center_freq = 5805, .hw_value = 161, }, 1606 {.center_freq = 5825, .hw_value = 165, }, 1607 }; 1608 1609 static struct ieee80211_supported_band mwifiex_band_5ghz = { 1610 .channels = mwifiex_channels_5ghz, 1611 .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz), 1612 .bitrates = mwifiex_rates + 4, 1613 .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4, 1614 }; 1615 1616 1617 /* Supported crypto cipher suits to be advertised to cfg80211 */ 1618 static const u32 mwifiex_cipher_suites[] = { 1619 WLAN_CIPHER_SUITE_WEP40, 1620 WLAN_CIPHER_SUITE_WEP104, 1621 WLAN_CIPHER_SUITE_TKIP, 1622 WLAN_CIPHER_SUITE_CCMP, 1623 WLAN_CIPHER_SUITE_SMS4, 1624 WLAN_CIPHER_SUITE_AES_CMAC, 1625 }; 1626 1627 /* Supported mgmt frame types to be advertised to cfg80211 */ 1628 static const struct ieee80211_txrx_stypes 1629 mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = { 1630 [NL80211_IFTYPE_STATION] = { 1631 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1632 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 1633 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1634 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 1635 }, 1636 [NL80211_IFTYPE_AP] = { 1637 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1638 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 1639 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1640 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 1641 }, 1642 [NL80211_IFTYPE_P2P_CLIENT] = { 1643 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1644 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 1645 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1646 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 1647 }, 1648 [NL80211_IFTYPE_P2P_GO] = { 1649 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1650 BIT(IEEE80211_STYPE_PROBE_RESP >> 4), 1651 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 1652 BIT(IEEE80211_STYPE_PROBE_REQ >> 4), 1653 }, 1654 }; 1655 1656 /* 1657 * CFG802.11 operation handler for setting bit rates. 1658 * 1659 * Function configures data rates to firmware using bitrate mask 1660 * provided by cfg80211. 1661 */ 1662 static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy, 1663 struct net_device *dev, 1664 const u8 *peer, 1665 const struct cfg80211_bitrate_mask *mask) 1666 { 1667 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1668 u16 bitmap_rates[MAX_BITMAP_RATES_SIZE]; 1669 enum nl80211_band band; 1670 struct mwifiex_adapter *adapter = priv->adapter; 1671 1672 if (!priv->media_connected) { 1673 mwifiex_dbg(adapter, ERROR, 1674 "Can not set Tx data rate in disconnected state\n"); 1675 return -EINVAL; 1676 } 1677 1678 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 1679 1680 memset(bitmap_rates, 0, sizeof(bitmap_rates)); 1681 1682 /* Fill HR/DSSS rates. */ 1683 if (band == NL80211_BAND_2GHZ) 1684 bitmap_rates[0] = mask->control[band].legacy & 0x000f; 1685 1686 /* Fill OFDM rates */ 1687 if (band == NL80211_BAND_2GHZ) 1688 bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4; 1689 else 1690 bitmap_rates[1] = mask->control[band].legacy; 1691 1692 /* Fill HT MCS rates */ 1693 bitmap_rates[2] = mask->control[band].ht_mcs[0]; 1694 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2) 1695 bitmap_rates[2] |= mask->control[band].ht_mcs[1] << 8; 1696 1697 /* Fill VHT MCS rates */ 1698 if (adapter->fw_api_ver == MWIFIEX_FW_V15) { 1699 bitmap_rates[10] = mask->control[band].vht_mcs[0]; 1700 if (adapter->hw_dev_mcs_support == HT_STREAM_2X2) 1701 bitmap_rates[11] = mask->control[band].vht_mcs[1]; 1702 } 1703 1704 return mwifiex_send_cmd(priv, HostCmd_CMD_TX_RATE_CFG, 1705 HostCmd_ACT_GEN_SET, 0, bitmap_rates, true); 1706 } 1707 1708 /* 1709 * CFG802.11 operation handler for connection quality monitoring. 1710 * 1711 * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI 1712 * events to FW. 1713 */ 1714 static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy, 1715 struct net_device *dev, 1716 s32 rssi_thold, u32 rssi_hyst) 1717 { 1718 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1719 struct mwifiex_ds_misc_subsc_evt subsc_evt; 1720 1721 priv->cqm_rssi_thold = rssi_thold; 1722 priv->cqm_rssi_hyst = rssi_hyst; 1723 1724 memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt)); 1725 subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH; 1726 1727 /* Subscribe/unsubscribe low and high rssi events */ 1728 if (rssi_thold && rssi_hyst) { 1729 subsc_evt.action = HostCmd_ACT_BITWISE_SET; 1730 subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold); 1731 subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold); 1732 subsc_evt.bcn_l_rssi_cfg.evt_freq = 1; 1733 subsc_evt.bcn_h_rssi_cfg.evt_freq = 1; 1734 return mwifiex_send_cmd(priv, 1735 HostCmd_CMD_802_11_SUBSCRIBE_EVENT, 1736 0, 0, &subsc_evt, true); 1737 } else { 1738 subsc_evt.action = HostCmd_ACT_BITWISE_CLR; 1739 return mwifiex_send_cmd(priv, 1740 HostCmd_CMD_802_11_SUBSCRIBE_EVENT, 1741 0, 0, &subsc_evt, true); 1742 } 1743 1744 return 0; 1745 } 1746 1747 /* cfg80211 operation handler for change_beacon. 1748 * Function retrieves and sets modified management IEs to FW. 1749 */ 1750 static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy, 1751 struct net_device *dev, 1752 struct cfg80211_beacon_data *data) 1753 { 1754 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1755 struct mwifiex_adapter *adapter = priv->adapter; 1756 1757 mwifiex_cancel_scan(adapter); 1758 1759 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) { 1760 mwifiex_dbg(priv->adapter, ERROR, 1761 "%s: bss_type mismatched\n", __func__); 1762 return -EINVAL; 1763 } 1764 1765 if (!priv->bss_started) { 1766 mwifiex_dbg(priv->adapter, ERROR, 1767 "%s: bss not started\n", __func__); 1768 return -EINVAL; 1769 } 1770 1771 if (mwifiex_set_mgmt_ies(priv, data)) { 1772 mwifiex_dbg(priv->adapter, ERROR, 1773 "%s: setting mgmt ies failed\n", __func__); 1774 return -EFAULT; 1775 } 1776 1777 return 0; 1778 } 1779 1780 /* cfg80211 operation handler for del_station. 1781 * Function deauthenticates station which value is provided in mac parameter. 1782 * If mac is NULL/broadcast, all stations in associated station list are 1783 * deauthenticated. If bss is not started or there are no stations in 1784 * associated stations list, no action is taken. 1785 */ 1786 static int 1787 mwifiex_cfg80211_del_station(struct wiphy *wiphy, struct net_device *dev, 1788 struct station_del_parameters *params) 1789 { 1790 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1791 struct mwifiex_sta_node *sta_node; 1792 u8 deauth_mac[ETH_ALEN]; 1793 unsigned long flags; 1794 1795 if (!priv->bss_started && priv->wdev.cac_started) { 1796 mwifiex_dbg(priv->adapter, INFO, "%s: abort CAC!\n", __func__); 1797 mwifiex_abort_cac(priv); 1798 } 1799 1800 if (list_empty(&priv->sta_list) || !priv->bss_started) 1801 return 0; 1802 1803 if (!params->mac || is_broadcast_ether_addr(params->mac)) 1804 return 0; 1805 1806 mwifiex_dbg(priv->adapter, INFO, "%s: mac address %pM\n", 1807 __func__, params->mac); 1808 1809 eth_zero_addr(deauth_mac); 1810 1811 spin_lock_irqsave(&priv->sta_list_spinlock, flags); 1812 sta_node = mwifiex_get_sta_entry(priv, params->mac); 1813 if (sta_node) 1814 ether_addr_copy(deauth_mac, params->mac); 1815 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); 1816 1817 if (is_valid_ether_addr(deauth_mac)) { 1818 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_STA_DEAUTH, 1819 HostCmd_ACT_GEN_SET, 0, 1820 deauth_mac, true)) 1821 return -1; 1822 } 1823 1824 return 0; 1825 } 1826 1827 static int 1828 mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) 1829 { 1830 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 1831 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 1832 MWIFIEX_BSS_ROLE_ANY); 1833 struct mwifiex_ds_ant_cfg ant_cfg; 1834 1835 if (!tx_ant || !rx_ant) 1836 return -EOPNOTSUPP; 1837 1838 if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) { 1839 /* Not a MIMO chip. User should provide specific antenna number 1840 * for Tx/Rx path or enable all antennas for diversity 1841 */ 1842 if (tx_ant != rx_ant) 1843 return -EOPNOTSUPP; 1844 1845 if ((tx_ant & (tx_ant - 1)) && 1846 (tx_ant != BIT(adapter->number_of_antenna) - 1)) 1847 return -EOPNOTSUPP; 1848 1849 if ((tx_ant == BIT(adapter->number_of_antenna) - 1) && 1850 (priv->adapter->number_of_antenna > 1)) { 1851 tx_ant = RF_ANTENNA_AUTO; 1852 rx_ant = RF_ANTENNA_AUTO; 1853 } 1854 } else { 1855 struct ieee80211_sta_ht_cap *ht_info; 1856 int rx_mcs_supp; 1857 enum nl80211_band band; 1858 1859 if ((tx_ant == 0x1 && rx_ant == 0x1)) { 1860 adapter->user_dev_mcs_support = HT_STREAM_1X1; 1861 if (adapter->is_hw_11ac_capable) 1862 adapter->usr_dot_11ac_mcs_support = 1863 MWIFIEX_11AC_MCS_MAP_1X1; 1864 } else { 1865 adapter->user_dev_mcs_support = HT_STREAM_2X2; 1866 if (adapter->is_hw_11ac_capable) 1867 adapter->usr_dot_11ac_mcs_support = 1868 MWIFIEX_11AC_MCS_MAP_2X2; 1869 } 1870 1871 for (band = 0; band < NUM_NL80211_BANDS; band++) { 1872 if (!adapter->wiphy->bands[band]) 1873 continue; 1874 1875 ht_info = &adapter->wiphy->bands[band]->ht_cap; 1876 rx_mcs_supp = 1877 GET_RXMCSSUPP(adapter->user_dev_mcs_support); 1878 memset(&ht_info->mcs, 0, adapter->number_of_antenna); 1879 memset(&ht_info->mcs, 0xff, rx_mcs_supp); 1880 } 1881 } 1882 1883 ant_cfg.tx_ant = tx_ant; 1884 ant_cfg.rx_ant = rx_ant; 1885 1886 return mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA, 1887 HostCmd_ACT_GEN_SET, 0, &ant_cfg, true); 1888 } 1889 1890 static int 1891 mwifiex_cfg80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) 1892 { 1893 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 1894 struct mwifiex_private *priv = mwifiex_get_priv(adapter, 1895 MWIFIEX_BSS_ROLE_ANY); 1896 mwifiex_send_cmd(priv, HostCmd_CMD_RF_ANTENNA, 1897 HostCmd_ACT_GEN_GET, 0, NULL, true); 1898 1899 *tx_ant = priv->tx_ant; 1900 *rx_ant = priv->rx_ant; 1901 1902 return 0; 1903 } 1904 1905 /* cfg80211 operation handler for stop ap. 1906 * Function stops BSS running at uAP interface. 1907 */ 1908 static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) 1909 { 1910 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1911 1912 mwifiex_abort_cac(priv); 1913 1914 if (mwifiex_del_mgmt_ies(priv)) 1915 mwifiex_dbg(priv->adapter, ERROR, 1916 "Failed to delete mgmt IEs!\n"); 1917 1918 priv->ap_11n_enabled = 0; 1919 memset(&priv->bss_cfg, 0, sizeof(priv->bss_cfg)); 1920 1921 if (mwifiex_send_cmd(priv, HostCmd_CMD_UAP_BSS_STOP, 1922 HostCmd_ACT_GEN_SET, 0, NULL, true)) { 1923 mwifiex_dbg(priv->adapter, ERROR, 1924 "Failed to stop the BSS\n"); 1925 return -1; 1926 } 1927 1928 if (mwifiex_send_cmd(priv, HOST_CMD_APCMD_SYS_RESET, 1929 HostCmd_ACT_GEN_SET, 0, NULL, true)) { 1930 mwifiex_dbg(priv->adapter, ERROR, 1931 "Failed to reset BSS\n"); 1932 return -1; 1933 } 1934 1935 if (netif_carrier_ok(priv->netdev)) 1936 netif_carrier_off(priv->netdev); 1937 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter); 1938 1939 return 0; 1940 } 1941 1942 /* cfg80211 operation handler for start_ap. 1943 * Function sets beacon period, DTIM period, SSID and security into 1944 * AP config structure. 1945 * AP is configured with these settings and BSS is started. 1946 */ 1947 static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy, 1948 struct net_device *dev, 1949 struct cfg80211_ap_settings *params) 1950 { 1951 struct mwifiex_uap_bss_param *bss_cfg; 1952 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 1953 1954 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) 1955 return -1; 1956 1957 bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL); 1958 if (!bss_cfg) 1959 return -ENOMEM; 1960 1961 mwifiex_set_sys_config_invalid_data(bss_cfg); 1962 1963 if (params->beacon_interval) 1964 bss_cfg->beacon_period = params->beacon_interval; 1965 if (params->dtim_period) 1966 bss_cfg->dtim_period = params->dtim_period; 1967 1968 if (params->ssid && params->ssid_len) { 1969 memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len); 1970 bss_cfg->ssid.ssid_len = params->ssid_len; 1971 } 1972 if (params->inactivity_timeout > 0) { 1973 /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */ 1974 bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout; 1975 bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout; 1976 } 1977 1978 switch (params->hidden_ssid) { 1979 case NL80211_HIDDEN_SSID_NOT_IN_USE: 1980 bss_cfg->bcast_ssid_ctl = 1; 1981 break; 1982 case NL80211_HIDDEN_SSID_ZERO_LEN: 1983 bss_cfg->bcast_ssid_ctl = 0; 1984 break; 1985 case NL80211_HIDDEN_SSID_ZERO_CONTENTS: 1986 bss_cfg->bcast_ssid_ctl = 2; 1987 break; 1988 default: 1989 kfree(bss_cfg); 1990 return -EINVAL; 1991 } 1992 1993 mwifiex_uap_set_channel(priv, bss_cfg, params->chandef); 1994 mwifiex_set_uap_rates(bss_cfg, params); 1995 1996 if (mwifiex_set_secure_params(priv, bss_cfg, params)) { 1997 mwifiex_dbg(priv->adapter, ERROR, 1998 "Failed to parse security parameters!\n"); 1999 goto out; 2000 } 2001 2002 mwifiex_set_ht_params(priv, bss_cfg, params); 2003 2004 if (priv->adapter->is_hw_11ac_capable) { 2005 mwifiex_set_vht_params(priv, bss_cfg, params); 2006 mwifiex_set_vht_width(priv, params->chandef.width, 2007 priv->ap_11ac_enabled); 2008 } 2009 2010 if (priv->ap_11ac_enabled) 2011 mwifiex_set_11ac_ba_params(priv); 2012 else 2013 mwifiex_set_ba_params(priv); 2014 2015 mwifiex_set_wmm_params(priv, bss_cfg, params); 2016 2017 if (mwifiex_is_11h_active(priv)) 2018 mwifiex_set_tpc_params(priv, bss_cfg, params); 2019 2020 if (mwifiex_is_11h_active(priv) && 2021 !cfg80211_chandef_dfs_required(wiphy, ¶ms->chandef, 2022 priv->bss_mode)) { 2023 mwifiex_dbg(priv->adapter, INFO, 2024 "Disable 11h extensions in FW\n"); 2025 if (mwifiex_11h_activate(priv, false)) { 2026 mwifiex_dbg(priv->adapter, ERROR, 2027 "Failed to disable 11h extensions!!"); 2028 goto out; 2029 } 2030 priv->state_11h.is_11h_active = false; 2031 } 2032 2033 mwifiex_config_uap_11d(priv, ¶ms->beacon); 2034 2035 if (mwifiex_config_start_uap(priv, bss_cfg)) { 2036 mwifiex_dbg(priv->adapter, ERROR, 2037 "Failed to start AP\n"); 2038 goto out; 2039 } 2040 2041 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon)) 2042 goto out; 2043 2044 if (!netif_carrier_ok(priv->netdev)) 2045 netif_carrier_on(priv->netdev); 2046 mwifiex_wake_up_net_dev_queue(priv->netdev, priv->adapter); 2047 2048 memcpy(&priv->bss_cfg, bss_cfg, sizeof(priv->bss_cfg)); 2049 kfree(bss_cfg); 2050 return 0; 2051 2052 out: 2053 kfree(bss_cfg); 2054 return -1; 2055 } 2056 2057 /* 2058 * CFG802.11 operation handler for disconnection request. 2059 * 2060 * This function does not work when there is already a disconnection 2061 * procedure going on. 2062 */ 2063 static int 2064 mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev, 2065 u16 reason_code) 2066 { 2067 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2068 2069 if (!mwifiex_stop_bg_scan(priv)) 2070 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy, 0); 2071 2072 if (mwifiex_deauthenticate(priv, NULL)) 2073 return -EFAULT; 2074 2075 eth_zero_addr(priv->cfg_bssid); 2076 priv->hs2_enabled = false; 2077 2078 return 0; 2079 } 2080 2081 /* 2082 * This function informs the CFG802.11 subsystem of a new IBSS. 2083 * 2084 * The following information are sent to the CFG802.11 subsystem 2085 * to register the new IBSS. If we do not register the new IBSS, 2086 * a kernel panic will result. 2087 * - SSID 2088 * - SSID length 2089 * - BSSID 2090 * - Channel 2091 */ 2092 static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv) 2093 { 2094 struct ieee80211_channel *chan; 2095 struct mwifiex_bss_info bss_info; 2096 struct cfg80211_bss *bss; 2097 int ie_len; 2098 u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)]; 2099 enum nl80211_band band; 2100 2101 if (mwifiex_get_bss_info(priv, &bss_info)) 2102 return -1; 2103 2104 ie_buf[0] = WLAN_EID_SSID; 2105 ie_buf[1] = bss_info.ssid.ssid_len; 2106 2107 memcpy(&ie_buf[sizeof(struct ieee_types_header)], 2108 &bss_info.ssid.ssid, bss_info.ssid.ssid_len); 2109 ie_len = ie_buf[1] + sizeof(struct ieee_types_header); 2110 2111 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 2112 chan = ieee80211_get_channel(priv->wdev.wiphy, 2113 ieee80211_channel_to_frequency(bss_info.bss_chan, 2114 band)); 2115 2116 bss = cfg80211_inform_bss(priv->wdev.wiphy, chan, 2117 CFG80211_BSS_FTYPE_UNKNOWN, 2118 bss_info.bssid, 0, WLAN_CAPABILITY_IBSS, 2119 0, ie_buf, ie_len, 0, GFP_KERNEL); 2120 if (bss) { 2121 cfg80211_put_bss(priv->wdev.wiphy, bss); 2122 ether_addr_copy(priv->cfg_bssid, bss_info.bssid); 2123 } 2124 2125 return 0; 2126 } 2127 2128 /* 2129 * This function connects with a BSS. 2130 * 2131 * This function handles both Infra and Ad-Hoc modes. It also performs 2132 * validity checking on the provided parameters, disconnects from the 2133 * current BSS (if any), sets up the association/scan parameters, 2134 * including security settings, and performs specific SSID scan before 2135 * trying to connect. 2136 * 2137 * For Infra mode, the function returns failure if the specified SSID 2138 * is not found in scan table. However, for Ad-Hoc mode, it can create 2139 * the IBSS if it does not exist. On successful completion in either case, 2140 * the function notifies the CFG802.11 subsystem of the new BSS connection. 2141 */ 2142 static int 2143 mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, 2144 const u8 *ssid, const u8 *bssid, int mode, 2145 struct ieee80211_channel *channel, 2146 struct cfg80211_connect_params *sme, bool privacy) 2147 { 2148 struct cfg80211_ssid req_ssid; 2149 int ret, auth_type = 0; 2150 struct cfg80211_bss *bss = NULL; 2151 u8 is_scanning_required = 0; 2152 2153 memset(&req_ssid, 0, sizeof(struct cfg80211_ssid)); 2154 2155 req_ssid.ssid_len = ssid_len; 2156 if (ssid_len > IEEE80211_MAX_SSID_LEN) { 2157 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n"); 2158 return -EINVAL; 2159 } 2160 2161 memcpy(req_ssid.ssid, ssid, ssid_len); 2162 if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) { 2163 mwifiex_dbg(priv->adapter, ERROR, "invalid SSID - aborting\n"); 2164 return -EINVAL; 2165 } 2166 2167 /* As this is new association, clear locally stored 2168 * keys and security related flags */ 2169 priv->sec_info.wpa_enabled = false; 2170 priv->sec_info.wpa2_enabled = false; 2171 priv->wep_key_curr_index = 0; 2172 priv->sec_info.encryption_mode = 0; 2173 priv->sec_info.is_authtype_auto = 0; 2174 ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1); 2175 2176 if (mode == NL80211_IFTYPE_ADHOC) { 2177 u16 enable = true; 2178 2179 /* set ibss coalescing_status */ 2180 ret = mwifiex_send_cmd( 2181 priv, 2182 HostCmd_CMD_802_11_IBSS_COALESCING_STATUS, 2183 HostCmd_ACT_GEN_SET, 0, &enable, true); 2184 if (ret) 2185 return ret; 2186 2187 /* "privacy" is set only for ad-hoc mode */ 2188 if (privacy) { 2189 /* 2190 * Keep WLAN_CIPHER_SUITE_WEP104 for now so that 2191 * the firmware can find a matching network from the 2192 * scan. The cfg80211 does not give us the encryption 2193 * mode at this stage so just setting it to WEP here. 2194 */ 2195 priv->sec_info.encryption_mode = 2196 WLAN_CIPHER_SUITE_WEP104; 2197 priv->sec_info.authentication_mode = 2198 NL80211_AUTHTYPE_OPEN_SYSTEM; 2199 } 2200 2201 goto done; 2202 } 2203 2204 /* Now handle infra mode. "sme" is valid for infra mode only */ 2205 if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { 2206 auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; 2207 priv->sec_info.is_authtype_auto = 1; 2208 } else { 2209 auth_type = sme->auth_type; 2210 } 2211 2212 if (sme->crypto.n_ciphers_pairwise) { 2213 priv->sec_info.encryption_mode = 2214 sme->crypto.ciphers_pairwise[0]; 2215 priv->sec_info.authentication_mode = auth_type; 2216 } 2217 2218 if (sme->crypto.cipher_group) { 2219 priv->sec_info.encryption_mode = sme->crypto.cipher_group; 2220 priv->sec_info.authentication_mode = auth_type; 2221 } 2222 if (sme->ie) 2223 ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len); 2224 2225 if (sme->key) { 2226 if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) { 2227 mwifiex_dbg(priv->adapter, INFO, 2228 "info: setting wep encryption\t" 2229 "with key len %d\n", sme->key_len); 2230 priv->wep_key_curr_index = sme->key_idx; 2231 ret = mwifiex_set_encode(priv, NULL, sme->key, 2232 sme->key_len, sme->key_idx, 2233 NULL, 0); 2234 } 2235 } 2236 done: 2237 /* 2238 * Scan entries are valid for some time (15 sec). So we can save one 2239 * active scan time if we just try cfg80211_get_bss first. If it fails 2240 * then request scan and cfg80211_get_bss() again for final output. 2241 */ 2242 while (1) { 2243 if (is_scanning_required) { 2244 /* Do specific SSID scanning */ 2245 if (mwifiex_request_scan(priv, &req_ssid)) { 2246 mwifiex_dbg(priv->adapter, ERROR, "scan error\n"); 2247 return -EFAULT; 2248 } 2249 } 2250 2251 /* Find the BSS we want using available scan results */ 2252 if (mode == NL80211_IFTYPE_ADHOC) 2253 bss = cfg80211_get_bss(priv->wdev.wiphy, channel, 2254 bssid, ssid, ssid_len, 2255 IEEE80211_BSS_TYPE_IBSS, 2256 IEEE80211_PRIVACY_ANY); 2257 else 2258 bss = cfg80211_get_bss(priv->wdev.wiphy, channel, 2259 bssid, ssid, ssid_len, 2260 IEEE80211_BSS_TYPE_ESS, 2261 IEEE80211_PRIVACY_ANY); 2262 2263 if (!bss) { 2264 if (is_scanning_required) { 2265 mwifiex_dbg(priv->adapter, MSG, 2266 "assoc: requested bss not found in scan results\n"); 2267 break; 2268 } 2269 is_scanning_required = 1; 2270 } else { 2271 mwifiex_dbg(priv->adapter, MSG, 2272 "info: trying to associate to '%.*s' bssid %pM\n", 2273 req_ssid.ssid_len, (char *)req_ssid.ssid, 2274 bss->bssid); 2275 memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN); 2276 break; 2277 } 2278 } 2279 2280 ret = mwifiex_bss_start(priv, bss, &req_ssid); 2281 if (ret) 2282 return ret; 2283 2284 if (mode == NL80211_IFTYPE_ADHOC) { 2285 /* Inform the BSS information to kernel, otherwise 2286 * kernel will give a panic after successful assoc */ 2287 if (mwifiex_cfg80211_inform_ibss_bss(priv)) 2288 return -EFAULT; 2289 } 2290 2291 return ret; 2292 } 2293 2294 /* 2295 * CFG802.11 operation handler for association request. 2296 * 2297 * This function does not work when the current mode is set to Ad-Hoc, or 2298 * when there is already an association procedure going on. The given BSS 2299 * information is used to associate. 2300 */ 2301 static int 2302 mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, 2303 struct cfg80211_connect_params *sme) 2304 { 2305 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2306 struct mwifiex_adapter *adapter = priv->adapter; 2307 int ret; 2308 2309 if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) { 2310 mwifiex_dbg(adapter, ERROR, 2311 "%s: reject infra assoc request in non-STA role\n", 2312 dev->name); 2313 return -EINVAL; 2314 } 2315 2316 if (priv->wdev.current_bss) { 2317 mwifiex_dbg(adapter, ERROR, 2318 "%s: already connected\n", dev->name); 2319 return -EALREADY; 2320 } 2321 2322 if (priv->scan_block) 2323 priv->scan_block = false; 2324 2325 if (adapter->surprise_removed || adapter->is_cmd_timedout) { 2326 mwifiex_dbg(adapter, ERROR, 2327 "%s: Ignore connection.\t" 2328 "Card removed or FW in bad state\n", 2329 dev->name); 2330 return -EFAULT; 2331 } 2332 2333 mwifiex_dbg(adapter, INFO, 2334 "info: Trying to associate to %.*s and bssid %pM\n", 2335 (int)sme->ssid_len, (char *)sme->ssid, sme->bssid); 2336 2337 if (!mwifiex_stop_bg_scan(priv)) 2338 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy, 0); 2339 2340 ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid, 2341 priv->bss_mode, sme->channel, sme, 0); 2342 if (!ret) { 2343 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0, 2344 NULL, 0, WLAN_STATUS_SUCCESS, 2345 GFP_KERNEL); 2346 mwifiex_dbg(priv->adapter, MSG, 2347 "info: associated to bssid %pM successfully\n", 2348 priv->cfg_bssid); 2349 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) && 2350 priv->adapter->auto_tdls && 2351 priv->bss_type == MWIFIEX_BSS_TYPE_STA) 2352 mwifiex_setup_auto_tdls_timer(priv); 2353 } else { 2354 mwifiex_dbg(priv->adapter, ERROR, 2355 "info: association to bssid %pM failed\n", 2356 priv->cfg_bssid); 2357 eth_zero_addr(priv->cfg_bssid); 2358 2359 if (ret > 0) 2360 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, 2361 NULL, 0, NULL, 0, ret, 2362 GFP_KERNEL); 2363 else 2364 cfg80211_connect_result(priv->netdev, priv->cfg_bssid, 2365 NULL, 0, NULL, 0, 2366 WLAN_STATUS_UNSPECIFIED_FAILURE, 2367 GFP_KERNEL); 2368 } 2369 2370 return 0; 2371 } 2372 2373 /* 2374 * This function sets following parameters for ibss network. 2375 * - channel 2376 * - start band 2377 * - 11n flag 2378 * - secondary channel offset 2379 */ 2380 static int mwifiex_set_ibss_params(struct mwifiex_private *priv, 2381 struct cfg80211_ibss_params *params) 2382 { 2383 struct mwifiex_adapter *adapter = priv->adapter; 2384 int index = 0, i; 2385 u8 config_bands = 0; 2386 2387 if (params->chandef.chan->band == NL80211_BAND_2GHZ) { 2388 if (!params->basic_rates) { 2389 config_bands = BAND_B | BAND_G; 2390 } else { 2391 for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) { 2392 /* 2393 * Rates below 6 Mbps in the table are CCK 2394 * rates; 802.11b and from 6 they are OFDM; 2395 * 802.11G 2396 */ 2397 if (mwifiex_rates[i].bitrate == 60) { 2398 index = 1 << i; 2399 break; 2400 } 2401 } 2402 2403 if (params->basic_rates < index) { 2404 config_bands = BAND_B; 2405 } else { 2406 config_bands = BAND_G; 2407 if (params->basic_rates % index) 2408 config_bands |= BAND_B; 2409 } 2410 } 2411 2412 if (cfg80211_get_chandef_type(¶ms->chandef) != 2413 NL80211_CHAN_NO_HT) 2414 config_bands |= BAND_G | BAND_GN; 2415 } else { 2416 if (cfg80211_get_chandef_type(¶ms->chandef) == 2417 NL80211_CHAN_NO_HT) 2418 config_bands = BAND_A; 2419 else 2420 config_bands = BAND_AN | BAND_A; 2421 } 2422 2423 if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) { 2424 adapter->config_bands = config_bands; 2425 adapter->adhoc_start_band = config_bands; 2426 2427 if ((config_bands & BAND_GN) || (config_bands & BAND_AN)) 2428 adapter->adhoc_11n_enabled = true; 2429 else 2430 adapter->adhoc_11n_enabled = false; 2431 } 2432 2433 adapter->sec_chan_offset = 2434 mwifiex_chan_type_to_sec_chan_offset( 2435 cfg80211_get_chandef_type(¶ms->chandef)); 2436 priv->adhoc_channel = ieee80211_frequency_to_channel( 2437 params->chandef.chan->center_freq); 2438 2439 mwifiex_dbg(adapter, INFO, 2440 "info: set ibss band %d, chan %d, chan offset %d\n", 2441 config_bands, priv->adhoc_channel, 2442 adapter->sec_chan_offset); 2443 2444 return 0; 2445 } 2446 2447 /* 2448 * CFG802.11 operation handler to join an IBSS. 2449 * 2450 * This function does not work in any mode other than Ad-Hoc, or if 2451 * a join operation is already in progress. 2452 */ 2453 static int 2454 mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, 2455 struct cfg80211_ibss_params *params) 2456 { 2457 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2458 int ret = 0; 2459 2460 if (priv->bss_mode != NL80211_IFTYPE_ADHOC) { 2461 mwifiex_dbg(priv->adapter, ERROR, 2462 "request to join ibss received\t" 2463 "when station is not in ibss mode\n"); 2464 goto done; 2465 } 2466 2467 mwifiex_dbg(priv->adapter, MSG, 2468 "info: trying to join to %.*s and bssid %pM\n", 2469 params->ssid_len, (char *)params->ssid, params->bssid); 2470 2471 mwifiex_set_ibss_params(priv, params); 2472 2473 ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid, 2474 params->bssid, priv->bss_mode, 2475 params->chandef.chan, NULL, 2476 params->privacy); 2477 done: 2478 if (!ret) { 2479 cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, 2480 params->chandef.chan, GFP_KERNEL); 2481 mwifiex_dbg(priv->adapter, MSG, 2482 "info: joined/created adhoc network with bssid\t" 2483 "%pM successfully\n", priv->cfg_bssid); 2484 } else { 2485 mwifiex_dbg(priv->adapter, ERROR, 2486 "info: failed creating/joining adhoc network\n"); 2487 } 2488 2489 return ret; 2490 } 2491 2492 /* 2493 * CFG802.11 operation handler to leave an IBSS. 2494 * 2495 * This function does not work if a leave operation is 2496 * already in progress. 2497 */ 2498 static int 2499 mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) 2500 { 2501 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2502 2503 mwifiex_dbg(priv->adapter, MSG, "info: disconnecting from essid %pM\n", 2504 priv->cfg_bssid); 2505 if (mwifiex_deauthenticate(priv, NULL)) 2506 return -EFAULT; 2507 2508 eth_zero_addr(priv->cfg_bssid); 2509 2510 return 0; 2511 } 2512 2513 /* 2514 * CFG802.11 operation handler for scan request. 2515 * 2516 * This function issues a scan request to the firmware based upon 2517 * the user specified scan configuration. On successful completion, 2518 * it also informs the results. 2519 */ 2520 static int 2521 mwifiex_cfg80211_scan(struct wiphy *wiphy, 2522 struct cfg80211_scan_request *request) 2523 { 2524 struct net_device *dev = request->wdev->netdev; 2525 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2526 int i, offset, ret; 2527 struct ieee80211_channel *chan; 2528 struct ieee_types_header *ie; 2529 struct mwifiex_user_scan_cfg *user_scan_cfg; 2530 u8 mac_addr[ETH_ALEN]; 2531 2532 mwifiex_dbg(priv->adapter, CMD, 2533 "info: received scan request on %s\n", dev->name); 2534 2535 /* Block scan request if scan operation or scan cleanup when interface 2536 * is disabled is in process 2537 */ 2538 if (priv->scan_request || priv->scan_aborting) { 2539 mwifiex_dbg(priv->adapter, WARN, 2540 "cmd: Scan already in process..\n"); 2541 return -EBUSY; 2542 } 2543 2544 if (!priv->wdev.current_bss && priv->scan_block) 2545 priv->scan_block = false; 2546 2547 if (!mwifiex_stop_bg_scan(priv)) 2548 cfg80211_sched_scan_stopped_rtnl(priv->wdev.wiphy, 0); 2549 2550 user_scan_cfg = kzalloc(sizeof(*user_scan_cfg), GFP_KERNEL); 2551 if (!user_scan_cfg) 2552 return -ENOMEM; 2553 2554 priv->scan_request = request; 2555 2556 if (request->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) { 2557 get_random_mask_addr(mac_addr, request->mac_addr, 2558 request->mac_addr_mask); 2559 ether_addr_copy(request->mac_addr, mac_addr); 2560 ether_addr_copy(user_scan_cfg->random_mac, mac_addr); 2561 } 2562 2563 user_scan_cfg->num_ssids = request->n_ssids; 2564 user_scan_cfg->ssid_list = request->ssids; 2565 2566 if (request->ie && request->ie_len) { 2567 offset = 0; 2568 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2569 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR) 2570 continue; 2571 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN; 2572 ie = (struct ieee_types_header *)(request->ie + offset); 2573 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len); 2574 offset += sizeof(*ie) + ie->len; 2575 2576 if (offset >= request->ie_len) 2577 break; 2578 } 2579 } 2580 2581 for (i = 0; i < min_t(u32, request->n_channels, 2582 MWIFIEX_USER_SCAN_CHAN_MAX); i++) { 2583 chan = request->channels[i]; 2584 user_scan_cfg->chan_list[i].chan_number = chan->hw_value; 2585 user_scan_cfg->chan_list[i].radio_type = chan->band; 2586 2587 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids) 2588 user_scan_cfg->chan_list[i].scan_type = 2589 MWIFIEX_SCAN_TYPE_PASSIVE; 2590 else 2591 user_scan_cfg->chan_list[i].scan_type = 2592 MWIFIEX_SCAN_TYPE_ACTIVE; 2593 2594 user_scan_cfg->chan_list[i].scan_time = 0; 2595 } 2596 2597 if (priv->adapter->scan_chan_gap_enabled && 2598 mwifiex_is_any_intf_active(priv)) 2599 user_scan_cfg->scan_chan_gap = 2600 priv->adapter->scan_chan_gap_time; 2601 2602 ret = mwifiex_scan_networks(priv, user_scan_cfg); 2603 kfree(user_scan_cfg); 2604 if (ret) { 2605 mwifiex_dbg(priv->adapter, ERROR, 2606 "scan failed: %d\n", ret); 2607 priv->scan_aborting = false; 2608 priv->scan_request = NULL; 2609 return ret; 2610 } 2611 2612 if (request->ie && request->ie_len) { 2613 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2614 if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) { 2615 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR; 2616 memset(&priv->vs_ie[i].ie, 0, 2617 MWIFIEX_MAX_VSIE_LEN); 2618 } 2619 } 2620 } 2621 return 0; 2622 } 2623 2624 /* CFG802.11 operation handler for sched_scan_start. 2625 * 2626 * This function issues a bgscan config request to the firmware based upon 2627 * the user specified sched_scan configuration. On successful completion, 2628 * firmware will generate BGSCAN_REPORT event, driver should issue bgscan 2629 * query command to get sched_scan results from firmware. 2630 */ 2631 static int 2632 mwifiex_cfg80211_sched_scan_start(struct wiphy *wiphy, 2633 struct net_device *dev, 2634 struct cfg80211_sched_scan_request *request) 2635 { 2636 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2637 int i, offset; 2638 struct ieee80211_channel *chan; 2639 struct mwifiex_bg_scan_cfg *bgscan_cfg; 2640 struct ieee_types_header *ie; 2641 2642 if (!request || (!request->n_ssids && !request->n_match_sets)) { 2643 wiphy_err(wiphy, "%s : Invalid Sched_scan parameters", 2644 __func__); 2645 return -EINVAL; 2646 } 2647 2648 wiphy_info(wiphy, "sched_scan start : n_ssids=%d n_match_sets=%d ", 2649 request->n_ssids, request->n_match_sets); 2650 wiphy_info(wiphy, "n_channels=%d interval=%d ie_len=%d\n", 2651 request->n_channels, request->scan_plans->interval, 2652 (int)request->ie_len); 2653 2654 bgscan_cfg = kzalloc(sizeof(*bgscan_cfg), GFP_KERNEL); 2655 if (!bgscan_cfg) 2656 return -ENOMEM; 2657 2658 if (priv->scan_request || priv->scan_aborting) 2659 bgscan_cfg->start_later = true; 2660 2661 bgscan_cfg->num_ssids = request->n_match_sets; 2662 bgscan_cfg->ssid_list = request->match_sets; 2663 2664 if (request->ie && request->ie_len) { 2665 offset = 0; 2666 for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { 2667 if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR) 2668 continue; 2669 priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_BGSCAN; 2670 ie = (struct ieee_types_header *)(request->ie + offset); 2671 memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len); 2672 offset += sizeof(*ie) + ie->len; 2673 2674 if (offset >= request->ie_len) 2675 break; 2676 } 2677 } 2678 2679 for (i = 0; i < min_t(u32, request->n_channels, 2680 MWIFIEX_BG_SCAN_CHAN_MAX); i++) { 2681 chan = request->channels[i]; 2682 bgscan_cfg->chan_list[i].chan_number = chan->hw_value; 2683 bgscan_cfg->chan_list[i].radio_type = chan->band; 2684 2685 if ((chan->flags & IEEE80211_CHAN_NO_IR) || !request->n_ssids) 2686 bgscan_cfg->chan_list[i].scan_type = 2687 MWIFIEX_SCAN_TYPE_PASSIVE; 2688 else 2689 bgscan_cfg->chan_list[i].scan_type = 2690 MWIFIEX_SCAN_TYPE_ACTIVE; 2691 2692 bgscan_cfg->chan_list[i].scan_time = 0; 2693 } 2694 2695 bgscan_cfg->chan_per_scan = min_t(u32, request->n_channels, 2696 MWIFIEX_BG_SCAN_CHAN_MAX); 2697 2698 /* Use at least 15 second for per scan cycle */ 2699 bgscan_cfg->scan_interval = (request->scan_plans->interval > 2700 MWIFIEX_BGSCAN_INTERVAL) ? 2701 request->scan_plans->interval : 2702 MWIFIEX_BGSCAN_INTERVAL; 2703 2704 bgscan_cfg->repeat_count = MWIFIEX_BGSCAN_REPEAT_COUNT; 2705 bgscan_cfg->report_condition = MWIFIEX_BGSCAN_SSID_MATCH | 2706 MWIFIEX_BGSCAN_WAIT_ALL_CHAN_DONE; 2707 bgscan_cfg->bss_type = MWIFIEX_BSS_MODE_INFRA; 2708 bgscan_cfg->action = MWIFIEX_BGSCAN_ACT_SET; 2709 bgscan_cfg->enable = true; 2710 if (request->min_rssi_thold != NL80211_SCAN_RSSI_THOLD_OFF) { 2711 bgscan_cfg->report_condition |= MWIFIEX_BGSCAN_SSID_RSSI_MATCH; 2712 bgscan_cfg->rssi_threshold = request->min_rssi_thold; 2713 } 2714 2715 if (mwifiex_send_cmd(priv, HostCmd_CMD_802_11_BG_SCAN_CONFIG, 2716 HostCmd_ACT_GEN_SET, 0, bgscan_cfg, true)) { 2717 kfree(bgscan_cfg); 2718 return -EFAULT; 2719 } 2720 2721 priv->sched_scanning = true; 2722 2723 kfree(bgscan_cfg); 2724 return 0; 2725 } 2726 2727 /* CFG802.11 operation handler for sched_scan_stop. 2728 * 2729 * This function issues a bgscan config command to disable 2730 * previous bgscan configuration in the firmware 2731 */ 2732 static int mwifiex_cfg80211_sched_scan_stop(struct wiphy *wiphy, 2733 struct net_device *dev, u64 reqid) 2734 { 2735 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 2736 2737 wiphy_info(wiphy, "sched scan stop!"); 2738 mwifiex_stop_bg_scan(priv); 2739 2740 return 0; 2741 } 2742 2743 static void mwifiex_setup_vht_caps(struct ieee80211_sta_vht_cap *vht_info, 2744 struct mwifiex_private *priv) 2745 { 2746 struct mwifiex_adapter *adapter = priv->adapter; 2747 2748 vht_info->vht_supported = true; 2749 2750 vht_info->cap = adapter->hw_dot_11ac_dev_cap; 2751 /* Update MCS support for VHT */ 2752 vht_info->vht_mcs.rx_mcs_map = cpu_to_le16( 2753 adapter->hw_dot_11ac_mcs_support & 0xFFFF); 2754 vht_info->vht_mcs.rx_highest = 0; 2755 vht_info->vht_mcs.tx_mcs_map = cpu_to_le16( 2756 adapter->hw_dot_11ac_mcs_support >> 16); 2757 vht_info->vht_mcs.tx_highest = 0; 2758 } 2759 2760 /* 2761 * This function sets up the CFG802.11 specific HT capability fields 2762 * with default values. 2763 * 2764 * The following default values are set - 2765 * - HT Supported = True 2766 * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K 2767 * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE 2768 * - HT Capabilities supported by firmware 2769 * - MCS information, Rx mask = 0xff 2770 * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01) 2771 */ 2772 static void 2773 mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info, 2774 struct mwifiex_private *priv) 2775 { 2776 int rx_mcs_supp; 2777 struct ieee80211_mcs_info mcs_set; 2778 u8 *mcs = (u8 *)&mcs_set; 2779 struct mwifiex_adapter *adapter = priv->adapter; 2780 2781 ht_info->ht_supported = true; 2782 ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; 2783 ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; 2784 2785 memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); 2786 2787 /* Fill HT capability information */ 2788 if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) 2789 ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; 2790 else 2791 ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; 2792 2793 if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap)) 2794 ht_info->cap |= IEEE80211_HT_CAP_SGI_20; 2795 else 2796 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20; 2797 2798 if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap)) 2799 ht_info->cap |= IEEE80211_HT_CAP_SGI_40; 2800 else 2801 ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40; 2802 2803 if (adapter->user_dev_mcs_support == HT_STREAM_2X2) 2804 ht_info->cap |= 2 << IEEE80211_HT_CAP_RX_STBC_SHIFT; 2805 else 2806 ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT; 2807 2808 if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap)) 2809 ht_info->cap |= IEEE80211_HT_CAP_TX_STBC; 2810 else 2811 ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC; 2812 2813 if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap)) 2814 ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD; 2815 else 2816 ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD; 2817 2818 if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap)) 2819 ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT; 2820 else 2821 ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT; 2822 2823 if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap)) 2824 ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING; 2825 else 2826 ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING; 2827 2828 ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU; 2829 ht_info->cap |= IEEE80211_HT_CAP_SM_PS; 2830 2831 rx_mcs_supp = GET_RXMCSSUPP(adapter->user_dev_mcs_support); 2832 /* Set MCS for 1x1/2x2 */ 2833 memset(mcs, 0xff, rx_mcs_supp); 2834 /* Clear all the other values */ 2835 memset(&mcs[rx_mcs_supp], 0, 2836 sizeof(struct ieee80211_mcs_info) - rx_mcs_supp); 2837 if (priv->bss_mode == NL80211_IFTYPE_STATION || 2838 ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) 2839 /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */ 2840 SETHT_MCS32(mcs_set.rx_mask); 2841 2842 memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info)); 2843 2844 ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; 2845 } 2846 2847 /* 2848 * create a new virtual interface with the given name and name assign type 2849 */ 2850 struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy, 2851 const char *name, 2852 unsigned char name_assign_type, 2853 enum nl80211_iftype type, 2854 struct vif_params *params) 2855 { 2856 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 2857 struct mwifiex_private *priv; 2858 struct net_device *dev; 2859 void *mdev_priv; 2860 int ret; 2861 2862 if (!adapter) 2863 return ERR_PTR(-EFAULT); 2864 2865 switch (type) { 2866 case NL80211_IFTYPE_UNSPECIFIED: 2867 case NL80211_IFTYPE_STATION: 2868 case NL80211_IFTYPE_ADHOC: 2869 if (adapter->curr_iface_comb.sta_intf == 2870 adapter->iface_limit.sta_intf) { 2871 mwifiex_dbg(adapter, ERROR, 2872 "cannot create multiple sta/adhoc ifaces\n"); 2873 return ERR_PTR(-EINVAL); 2874 } 2875 2876 priv = mwifiex_get_unused_priv_by_bss_type( 2877 adapter, MWIFIEX_BSS_TYPE_STA); 2878 if (!priv) { 2879 mwifiex_dbg(adapter, ERROR, 2880 "could not get free private struct\n"); 2881 return ERR_PTR(-EFAULT); 2882 } 2883 2884 priv->wdev.wiphy = wiphy; 2885 priv->wdev.iftype = NL80211_IFTYPE_STATION; 2886 2887 if (type == NL80211_IFTYPE_UNSPECIFIED) 2888 priv->bss_mode = NL80211_IFTYPE_STATION; 2889 else 2890 priv->bss_mode = type; 2891 2892 priv->bss_type = MWIFIEX_BSS_TYPE_STA; 2893 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 2894 priv->bss_priority = 0; 2895 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 2896 2897 break; 2898 case NL80211_IFTYPE_AP: 2899 if (adapter->curr_iface_comb.uap_intf == 2900 adapter->iface_limit.uap_intf) { 2901 mwifiex_dbg(adapter, ERROR, 2902 "cannot create multiple AP ifaces\n"); 2903 return ERR_PTR(-EINVAL); 2904 } 2905 2906 priv = mwifiex_get_unused_priv_by_bss_type( 2907 adapter, MWIFIEX_BSS_TYPE_UAP); 2908 if (!priv) { 2909 mwifiex_dbg(adapter, ERROR, 2910 "could not get free private struct\n"); 2911 return ERR_PTR(-EFAULT); 2912 } 2913 2914 priv->wdev.wiphy = wiphy; 2915 priv->wdev.iftype = NL80211_IFTYPE_AP; 2916 2917 priv->bss_type = MWIFIEX_BSS_TYPE_UAP; 2918 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 2919 priv->bss_priority = 0; 2920 priv->bss_role = MWIFIEX_BSS_ROLE_UAP; 2921 priv->bss_started = 0; 2922 priv->bss_mode = type; 2923 2924 break; 2925 case NL80211_IFTYPE_P2P_CLIENT: 2926 if (adapter->curr_iface_comb.p2p_intf == 2927 adapter->iface_limit.p2p_intf) { 2928 mwifiex_dbg(adapter, ERROR, 2929 "cannot create multiple P2P ifaces\n"); 2930 return ERR_PTR(-EINVAL); 2931 } 2932 2933 priv = mwifiex_get_unused_priv_by_bss_type( 2934 adapter, MWIFIEX_BSS_TYPE_P2P); 2935 if (!priv) { 2936 mwifiex_dbg(adapter, ERROR, 2937 "could not get free private struct\n"); 2938 return ERR_PTR(-EFAULT); 2939 } 2940 2941 priv->wdev.wiphy = wiphy; 2942 /* At start-up, wpa_supplicant tries to change the interface 2943 * to NL80211_IFTYPE_STATION if it is not managed mode. 2944 */ 2945 priv->wdev.iftype = NL80211_IFTYPE_P2P_CLIENT; 2946 priv->bss_mode = NL80211_IFTYPE_P2P_CLIENT; 2947 2948 /* Setting bss_type to P2P tells firmware that this interface 2949 * is receiving P2P peers found during find phase and doing 2950 * action frame handshake. 2951 */ 2952 priv->bss_type = MWIFIEX_BSS_TYPE_P2P; 2953 2954 priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; 2955 priv->bss_priority = MWIFIEX_BSS_ROLE_STA; 2956 priv->bss_role = MWIFIEX_BSS_ROLE_STA; 2957 priv->bss_started = 0; 2958 2959 if (mwifiex_cfg80211_init_p2p_client(priv)) { 2960 memset(&priv->wdev, 0, sizeof(priv->wdev)); 2961 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 2962 return ERR_PTR(-EFAULT); 2963 } 2964 2965 break; 2966 default: 2967 mwifiex_dbg(adapter, ERROR, "type not supported\n"); 2968 return ERR_PTR(-EINVAL); 2969 } 2970 2971 dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name, 2972 name_assign_type, ether_setup, 2973 IEEE80211_NUM_ACS, 1); 2974 if (!dev) { 2975 mwifiex_dbg(adapter, ERROR, 2976 "no memory available for netdevice\n"); 2977 ret = -ENOMEM; 2978 goto err_alloc_netdev; 2979 } 2980 2981 mwifiex_init_priv_params(priv, dev); 2982 2983 priv->netdev = dev; 2984 2985 if (!adapter->mfg_mode) { 2986 mwifiex_set_mac_address(priv, dev, false, NULL); 2987 2988 ret = mwifiex_send_cmd(priv, HostCmd_CMD_SET_BSS_MODE, 2989 HostCmd_ACT_GEN_SET, 0, NULL, true); 2990 if (ret) 2991 goto err_set_bss_mode; 2992 2993 ret = mwifiex_sta_init_cmd(priv, false, false); 2994 if (ret) 2995 goto err_sta_init; 2996 } 2997 2998 mwifiex_setup_ht_caps(&wiphy->bands[NL80211_BAND_2GHZ]->ht_cap, priv); 2999 if (adapter->is_hw_11ac_capable) 3000 mwifiex_setup_vht_caps( 3001 &wiphy->bands[NL80211_BAND_2GHZ]->vht_cap, priv); 3002 3003 if (adapter->config_bands & BAND_A) 3004 mwifiex_setup_ht_caps( 3005 &wiphy->bands[NL80211_BAND_5GHZ]->ht_cap, priv); 3006 3007 if ((adapter->config_bands & BAND_A) && adapter->is_hw_11ac_capable) 3008 mwifiex_setup_vht_caps( 3009 &wiphy->bands[NL80211_BAND_5GHZ]->vht_cap, priv); 3010 3011 dev_net_set(dev, wiphy_net(wiphy)); 3012 dev->ieee80211_ptr = &priv->wdev; 3013 dev->ieee80211_ptr->iftype = priv->bss_mode; 3014 SET_NETDEV_DEV(dev, wiphy_dev(wiphy)); 3015 3016 dev->flags |= IFF_BROADCAST | IFF_MULTICAST; 3017 dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT; 3018 dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN; 3019 dev->ethtool_ops = &mwifiex_ethtool_ops; 3020 3021 mdev_priv = netdev_priv(dev); 3022 *((unsigned long *) mdev_priv) = (unsigned long) priv; 3023 3024 SET_NETDEV_DEV(dev, adapter->dev); 3025 3026 priv->dfs_cac_workqueue = alloc_workqueue("MWIFIEX_DFS_CAC%s", 3027 WQ_HIGHPRI | 3028 WQ_MEM_RECLAIM | 3029 WQ_UNBOUND, 1, name); 3030 if (!priv->dfs_cac_workqueue) { 3031 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS CAC queue\n"); 3032 ret = -ENOMEM; 3033 goto err_alloc_cac; 3034 } 3035 3036 INIT_DELAYED_WORK(&priv->dfs_cac_work, mwifiex_dfs_cac_work_queue); 3037 3038 priv->dfs_chan_sw_workqueue = alloc_workqueue("MWIFIEX_DFS_CHSW%s", 3039 WQ_HIGHPRI | WQ_UNBOUND | 3040 WQ_MEM_RECLAIM, 1, name); 3041 if (!priv->dfs_chan_sw_workqueue) { 3042 mwifiex_dbg(adapter, ERROR, "cannot alloc DFS channel sw queue\n"); 3043 ret = -ENOMEM; 3044 goto err_alloc_chsw; 3045 } 3046 3047 INIT_DELAYED_WORK(&priv->dfs_chan_sw_work, 3048 mwifiex_dfs_chan_sw_work_queue); 3049 3050 mutex_init(&priv->async_mutex); 3051 3052 /* Register network device */ 3053 if (register_netdevice(dev)) { 3054 mwifiex_dbg(adapter, ERROR, "cannot register network device\n"); 3055 ret = -EFAULT; 3056 goto err_reg_netdev; 3057 } 3058 3059 mwifiex_dbg(adapter, INFO, 3060 "info: %s: Marvell 802.11 Adapter\n", dev->name); 3061 3062 #ifdef CONFIG_DEBUG_FS 3063 mwifiex_dev_debugfs_init(priv); 3064 #endif 3065 3066 switch (type) { 3067 case NL80211_IFTYPE_UNSPECIFIED: 3068 case NL80211_IFTYPE_STATION: 3069 case NL80211_IFTYPE_ADHOC: 3070 adapter->curr_iface_comb.sta_intf++; 3071 break; 3072 case NL80211_IFTYPE_AP: 3073 adapter->curr_iface_comb.uap_intf++; 3074 break; 3075 case NL80211_IFTYPE_P2P_CLIENT: 3076 adapter->curr_iface_comb.p2p_intf++; 3077 break; 3078 default: 3079 /* This should be dead code; checked above */ 3080 mwifiex_dbg(adapter, ERROR, "type not supported\n"); 3081 return ERR_PTR(-EINVAL); 3082 } 3083 3084 return &priv->wdev; 3085 3086 err_reg_netdev: 3087 destroy_workqueue(priv->dfs_chan_sw_workqueue); 3088 priv->dfs_chan_sw_workqueue = NULL; 3089 err_alloc_chsw: 3090 destroy_workqueue(priv->dfs_cac_workqueue); 3091 priv->dfs_cac_workqueue = NULL; 3092 err_alloc_cac: 3093 free_netdev(dev); 3094 priv->netdev = NULL; 3095 err_sta_init: 3096 err_set_bss_mode: 3097 err_alloc_netdev: 3098 memset(&priv->wdev, 0, sizeof(priv->wdev)); 3099 priv->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED; 3100 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; 3101 return ERR_PTR(ret); 3102 } 3103 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf); 3104 3105 /* 3106 * del_virtual_intf: remove the virtual interface determined by dev 3107 */ 3108 int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) 3109 { 3110 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 3111 struct mwifiex_adapter *adapter = priv->adapter; 3112 struct sk_buff *skb, *tmp; 3113 3114 #ifdef CONFIG_DEBUG_FS 3115 mwifiex_dev_debugfs_remove(priv); 3116 #endif 3117 3118 if (priv->sched_scanning) 3119 priv->sched_scanning = false; 3120 3121 mwifiex_stop_net_dev_queue(priv->netdev, adapter); 3122 3123 skb_queue_walk_safe(&priv->bypass_txq, skb, tmp) { 3124 skb_unlink(skb, &priv->bypass_txq); 3125 mwifiex_write_data_complete(priv->adapter, skb, 0, -1); 3126 } 3127 3128 if (netif_carrier_ok(priv->netdev)) 3129 netif_carrier_off(priv->netdev); 3130 3131 if (wdev->netdev->reg_state == NETREG_REGISTERED) 3132 unregister_netdevice(wdev->netdev); 3133 3134 if (priv->dfs_cac_workqueue) { 3135 flush_workqueue(priv->dfs_cac_workqueue); 3136 destroy_workqueue(priv->dfs_cac_workqueue); 3137 priv->dfs_cac_workqueue = NULL; 3138 } 3139 3140 if (priv->dfs_chan_sw_workqueue) { 3141 flush_workqueue(priv->dfs_chan_sw_workqueue); 3142 destroy_workqueue(priv->dfs_chan_sw_workqueue); 3143 priv->dfs_chan_sw_workqueue = NULL; 3144 } 3145 /* Clear the priv in adapter */ 3146 priv->netdev = NULL; 3147 3148 switch (priv->bss_mode) { 3149 case NL80211_IFTYPE_UNSPECIFIED: 3150 case NL80211_IFTYPE_STATION: 3151 case NL80211_IFTYPE_ADHOC: 3152 adapter->curr_iface_comb.sta_intf--; 3153 break; 3154 case NL80211_IFTYPE_AP: 3155 adapter->curr_iface_comb.uap_intf--; 3156 break; 3157 case NL80211_IFTYPE_P2P_CLIENT: 3158 case NL80211_IFTYPE_P2P_GO: 3159 adapter->curr_iface_comb.p2p_intf--; 3160 break; 3161 default: 3162 mwifiex_dbg(adapter, ERROR, 3163 "del_virtual_intf: type not supported\n"); 3164 break; 3165 } 3166 3167 priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; 3168 3169 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA || 3170 GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) 3171 kfree(priv->hist_data); 3172 3173 return 0; 3174 } 3175 EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf); 3176 3177 static bool 3178 mwifiex_is_pattern_supported(struct cfg80211_pkt_pattern *pat, s8 *byte_seq, 3179 u8 max_byte_seq) 3180 { 3181 int j, k, valid_byte_cnt = 0; 3182 bool dont_care_byte = false; 3183 3184 for (j = 0; j < DIV_ROUND_UP(pat->pattern_len, 8); j++) { 3185 for (k = 0; k < 8; k++) { 3186 if (pat->mask[j] & 1 << k) { 3187 memcpy(byte_seq + valid_byte_cnt, 3188 &pat->pattern[j * 8 + k], 1); 3189 valid_byte_cnt++; 3190 if (dont_care_byte) 3191 return false; 3192 } else { 3193 if (valid_byte_cnt) 3194 dont_care_byte = true; 3195 } 3196 3197 /* wildcard bytes record as the offset 3198 * before the valid byte 3199 */ 3200 if (!valid_byte_cnt && !dont_care_byte) 3201 pat->pkt_offset++; 3202 3203 if (valid_byte_cnt > max_byte_seq) 3204 return false; 3205 } 3206 } 3207 3208 byte_seq[max_byte_seq] = valid_byte_cnt; 3209 3210 return true; 3211 } 3212 3213 #ifdef CONFIG_PM 3214 static void mwifiex_set_auto_arp_mef_entry(struct mwifiex_private *priv, 3215 struct mwifiex_mef_entry *mef_entry) 3216 { 3217 int i, filt_num = 0, num_ipv4 = 0; 3218 struct in_device *in_dev; 3219 struct in_ifaddr *ifa; 3220 __be32 ips[MWIFIEX_MAX_SUPPORTED_IPADDR]; 3221 struct mwifiex_adapter *adapter = priv->adapter; 3222 3223 mef_entry->mode = MEF_MODE_HOST_SLEEP; 3224 mef_entry->action = MEF_ACTION_AUTO_ARP; 3225 3226 /* Enable ARP offload feature */ 3227 memset(ips, 0, sizeof(ips)); 3228 for (i = 0; i < MWIFIEX_MAX_BSS_NUM; i++) { 3229 if (adapter->priv[i]->netdev) { 3230 in_dev = __in_dev_get_rtnl(adapter->priv[i]->netdev); 3231 if (!in_dev) 3232 continue; 3233 ifa = in_dev->ifa_list; 3234 if (!ifa || !ifa->ifa_local) 3235 continue; 3236 ips[i] = ifa->ifa_local; 3237 num_ipv4++; 3238 } 3239 } 3240 3241 for (i = 0; i < num_ipv4; i++) { 3242 if (!ips[i]) 3243 continue; 3244 mef_entry->filter[filt_num].repeat = 1; 3245 memcpy(mef_entry->filter[filt_num].byte_seq, 3246 (u8 *)&ips[i], sizeof(ips[i])); 3247 mef_entry->filter[filt_num]. 3248 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3249 sizeof(ips[i]); 3250 mef_entry->filter[filt_num].offset = 46; 3251 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3252 if (filt_num) { 3253 mef_entry->filter[filt_num].filt_action = 3254 TYPE_OR; 3255 } 3256 filt_num++; 3257 } 3258 3259 mef_entry->filter[filt_num].repeat = 1; 3260 mef_entry->filter[filt_num].byte_seq[0] = 0x08; 3261 mef_entry->filter[filt_num].byte_seq[1] = 0x06; 3262 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 2; 3263 mef_entry->filter[filt_num].offset = 20; 3264 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3265 mef_entry->filter[filt_num].filt_action = TYPE_AND; 3266 } 3267 3268 static int mwifiex_set_wowlan_mef_entry(struct mwifiex_private *priv, 3269 struct mwifiex_ds_mef_cfg *mef_cfg, 3270 struct mwifiex_mef_entry *mef_entry, 3271 struct cfg80211_wowlan *wowlan) 3272 { 3273 int i, filt_num = 0, ret = 0; 3274 bool first_pat = true; 3275 u8 byte_seq[MWIFIEX_MEF_MAX_BYTESEQ + 1]; 3276 static const u8 ipv4_mc_mac[] = {0x33, 0x33}; 3277 static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e}; 3278 3279 mef_entry->mode = MEF_MODE_HOST_SLEEP; 3280 mef_entry->action = MEF_ACTION_ALLOW_AND_WAKEUP_HOST; 3281 3282 for (i = 0; i < wowlan->n_patterns; i++) { 3283 memset(byte_seq, 0, sizeof(byte_seq)); 3284 if (!mwifiex_is_pattern_supported(&wowlan->patterns[i], 3285 byte_seq, 3286 MWIFIEX_MEF_MAX_BYTESEQ)) { 3287 mwifiex_dbg(priv->adapter, ERROR, 3288 "Pattern not supported\n"); 3289 return -EOPNOTSUPP; 3290 } 3291 3292 if (!wowlan->patterns[i].pkt_offset) { 3293 if (!(byte_seq[0] & 0x01) && 3294 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 1)) { 3295 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST; 3296 continue; 3297 } else if (is_broadcast_ether_addr(byte_seq)) { 3298 mef_cfg->criteria |= MWIFIEX_CRITERIA_BROADCAST; 3299 continue; 3300 } else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) && 3301 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 2)) || 3302 (!memcmp(byte_seq, ipv6_mc_mac, 3) && 3303 (byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] == 3))) { 3304 mef_cfg->criteria |= MWIFIEX_CRITERIA_MULTICAST; 3305 continue; 3306 } 3307 } 3308 mef_entry->filter[filt_num].repeat = 1; 3309 mef_entry->filter[filt_num].offset = 3310 wowlan->patterns[i].pkt_offset; 3311 memcpy(mef_entry->filter[filt_num].byte_seq, byte_seq, 3312 sizeof(byte_seq)); 3313 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3314 3315 if (first_pat) { 3316 first_pat = false; 3317 mwifiex_dbg(priv->adapter, INFO, "Wake on patterns\n"); 3318 } else { 3319 mef_entry->filter[filt_num].filt_action = TYPE_AND; 3320 } 3321 3322 filt_num++; 3323 } 3324 3325 if (wowlan->magic_pkt) { 3326 mef_cfg->criteria |= MWIFIEX_CRITERIA_UNICAST; 3327 mef_entry->filter[filt_num].repeat = 16; 3328 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr, 3329 ETH_ALEN); 3330 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3331 ETH_ALEN; 3332 mef_entry->filter[filt_num].offset = 28; 3333 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3334 if (filt_num) 3335 mef_entry->filter[filt_num].filt_action = TYPE_OR; 3336 3337 filt_num++; 3338 mef_entry->filter[filt_num].repeat = 16; 3339 memcpy(mef_entry->filter[filt_num].byte_seq, priv->curr_addr, 3340 ETH_ALEN); 3341 mef_entry->filter[filt_num].byte_seq[MWIFIEX_MEF_MAX_BYTESEQ] = 3342 ETH_ALEN; 3343 mef_entry->filter[filt_num].offset = 56; 3344 mef_entry->filter[filt_num].filt_type = TYPE_EQ; 3345 mef_entry->filter[filt_num].filt_action = TYPE_OR; 3346 mwifiex_dbg(priv->adapter, INFO, "Wake on magic packet\n"); 3347 } 3348 return ret; 3349 } 3350 3351 static int mwifiex_set_mef_filter(struct mwifiex_private *priv, 3352 struct cfg80211_wowlan *wowlan) 3353 { 3354 int ret = 0, num_entries = 1; 3355 struct mwifiex_ds_mef_cfg mef_cfg; 3356 struct mwifiex_mef_entry *mef_entry; 3357 3358 if (wowlan->n_patterns || wowlan->magic_pkt) 3359 num_entries++; 3360 3361 mef_entry = kcalloc(num_entries, sizeof(*mef_entry), GFP_KERNEL); 3362 if (!mef_entry) 3363 return -ENOMEM; 3364 3365 memset(&mef_cfg, 0, sizeof(mef_cfg)); 3366 mef_cfg.criteria |= MWIFIEX_CRITERIA_BROADCAST | 3367 MWIFIEX_CRITERIA_UNICAST; 3368 mef_cfg.num_entries = num_entries; 3369 mef_cfg.mef_entry = mef_entry; 3370 3371 mwifiex_set_auto_arp_mef_entry(priv, &mef_entry[0]); 3372 3373 if (wowlan->n_patterns || wowlan->magic_pkt) { 3374 ret = mwifiex_set_wowlan_mef_entry(priv, &mef_cfg, 3375 &mef_entry[1], wowlan); 3376 if (ret) 3377 goto err; 3378 } 3379 3380 if (!mef_cfg.criteria) 3381 mef_cfg.criteria = MWIFIEX_CRITERIA_BROADCAST | 3382 MWIFIEX_CRITERIA_UNICAST | 3383 MWIFIEX_CRITERIA_MULTICAST; 3384 3385 ret = mwifiex_send_cmd(priv, HostCmd_CMD_MEF_CFG, 3386 HostCmd_ACT_GEN_SET, 0, 3387 &mef_cfg, true); 3388 3389 err: 3390 kfree(mef_entry); 3391 return ret; 3392 } 3393 3394 static int mwifiex_cfg80211_suspend(struct wiphy *wiphy, 3395 struct cfg80211_wowlan *wowlan) 3396 { 3397 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3398 struct mwifiex_ds_hs_cfg hs_cfg; 3399 int i, ret = 0, retry_num = 10; 3400 struct mwifiex_private *priv; 3401 struct mwifiex_private *sta_priv = 3402 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3403 3404 sta_priv->scan_aborting = true; 3405 for (i = 0; i < adapter->priv_num; i++) { 3406 priv = adapter->priv[i]; 3407 mwifiex_abort_cac(priv); 3408 } 3409 3410 mwifiex_cancel_all_pending_cmd(adapter); 3411 3412 for (i = 0; i < adapter->priv_num; i++) { 3413 priv = adapter->priv[i]; 3414 if (priv && priv->netdev) 3415 netif_device_detach(priv->netdev); 3416 } 3417 3418 for (i = 0; i < retry_num; i++) { 3419 if (!mwifiex_wmm_lists_empty(adapter) || 3420 !mwifiex_bypass_txlist_empty(adapter) || 3421 !skb_queue_empty(&adapter->tx_data_q)) 3422 usleep_range(10000, 15000); 3423 else 3424 break; 3425 } 3426 3427 if (!wowlan) { 3428 mwifiex_dbg(adapter, ERROR, 3429 "None of the WOWLAN triggers enabled\n"); 3430 ret = 0; 3431 goto done; 3432 } 3433 3434 if (!sta_priv->media_connected && !wowlan->nd_config) { 3435 mwifiex_dbg(adapter, ERROR, 3436 "Can not configure WOWLAN in disconnected state\n"); 3437 ret = 0; 3438 goto done; 3439 } 3440 3441 ret = mwifiex_set_mef_filter(sta_priv, wowlan); 3442 if (ret) { 3443 mwifiex_dbg(adapter, ERROR, "Failed to set MEF filter\n"); 3444 goto done; 3445 } 3446 3447 memset(&hs_cfg, 0, sizeof(hs_cfg)); 3448 hs_cfg.conditions = le32_to_cpu(adapter->hs_cfg.conditions); 3449 3450 if (wowlan->nd_config) { 3451 mwifiex_dbg(adapter, INFO, "Wake on net detect\n"); 3452 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT; 3453 mwifiex_cfg80211_sched_scan_start(wiphy, sta_priv->netdev, 3454 wowlan->nd_config); 3455 } 3456 3457 if (wowlan->disconnect) { 3458 hs_cfg.conditions |= HS_CFG_COND_MAC_EVENT; 3459 mwifiex_dbg(sta_priv->adapter, INFO, "Wake on device disconnect\n"); 3460 } 3461 3462 hs_cfg.is_invoke_hostcmd = false; 3463 hs_cfg.gpio = adapter->hs_cfg.gpio; 3464 hs_cfg.gap = adapter->hs_cfg.gap; 3465 ret = mwifiex_set_hs_params(sta_priv, HostCmd_ACT_GEN_SET, 3466 MWIFIEX_SYNC_CMD, &hs_cfg); 3467 if (ret) 3468 mwifiex_dbg(adapter, ERROR, "Failed to set HS params\n"); 3469 3470 done: 3471 sta_priv->scan_aborting = false; 3472 return ret; 3473 } 3474 3475 static int mwifiex_cfg80211_resume(struct wiphy *wiphy) 3476 { 3477 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3478 struct mwifiex_private *priv; 3479 struct mwifiex_ds_wakeup_reason wakeup_reason; 3480 struct cfg80211_wowlan_wakeup wakeup_report; 3481 int i; 3482 bool report_wakeup_reason = true; 3483 3484 for (i = 0; i < adapter->priv_num; i++) { 3485 priv = adapter->priv[i]; 3486 if (priv && priv->netdev) 3487 netif_device_attach(priv->netdev); 3488 } 3489 3490 if (!wiphy->wowlan_config) 3491 goto done; 3492 3493 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3494 mwifiex_get_wakeup_reason(priv, HostCmd_ACT_GEN_GET, MWIFIEX_SYNC_CMD, 3495 &wakeup_reason); 3496 memset(&wakeup_report, 0, sizeof(struct cfg80211_wowlan_wakeup)); 3497 3498 wakeup_report.pattern_idx = -1; 3499 3500 switch (wakeup_reason.hs_wakeup_reason) { 3501 case NO_HSWAKEUP_REASON: 3502 break; 3503 case BCAST_DATA_MATCHED: 3504 break; 3505 case MCAST_DATA_MATCHED: 3506 break; 3507 case UCAST_DATA_MATCHED: 3508 break; 3509 case MASKTABLE_EVENT_MATCHED: 3510 break; 3511 case NON_MASKABLE_EVENT_MATCHED: 3512 if (wiphy->wowlan_config->disconnect) 3513 wakeup_report.disconnect = true; 3514 if (wiphy->wowlan_config->nd_config) 3515 wakeup_report.net_detect = adapter->nd_info; 3516 break; 3517 case NON_MASKABLE_CONDITION_MATCHED: 3518 break; 3519 case MAGIC_PATTERN_MATCHED: 3520 if (wiphy->wowlan_config->magic_pkt) 3521 wakeup_report.magic_pkt = true; 3522 if (wiphy->wowlan_config->n_patterns) 3523 wakeup_report.pattern_idx = 1; 3524 break; 3525 case GTK_REKEY_FAILURE: 3526 if (wiphy->wowlan_config->gtk_rekey_failure) 3527 wakeup_report.gtk_rekey_failure = true; 3528 break; 3529 default: 3530 report_wakeup_reason = false; 3531 break; 3532 } 3533 3534 if (report_wakeup_reason) 3535 cfg80211_report_wowlan_wakeup(&priv->wdev, &wakeup_report, 3536 GFP_KERNEL); 3537 3538 done: 3539 if (adapter->nd_info) { 3540 for (i = 0 ; i < adapter->nd_info->n_matches ; i++) 3541 kfree(adapter->nd_info->matches[i]); 3542 kfree(adapter->nd_info); 3543 adapter->nd_info = NULL; 3544 } 3545 3546 return 0; 3547 } 3548 3549 static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy, 3550 bool enabled) 3551 { 3552 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3553 3554 device_set_wakeup_enable(adapter->dev, enabled); 3555 } 3556 3557 static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev, 3558 struct cfg80211_gtk_rekey_data *data) 3559 { 3560 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3561 3562 if (!ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info)) 3563 return -EOPNOTSUPP; 3564 3565 return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG, 3566 HostCmd_ACT_GEN_SET, 0, data, true); 3567 } 3568 3569 #endif 3570 3571 static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq) 3572 { 3573 static const u8 ipv4_mc_mac[] = {0x33, 0x33}; 3574 static const u8 ipv6_mc_mac[] = {0x01, 0x00, 0x5e}; 3575 static const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff}; 3576 3577 if ((byte_seq[0] & 0x01) && 3578 (byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 1)) 3579 return PACKET_TYPE_UNICAST; 3580 else if (!memcmp(byte_seq, bc_mac, 4)) 3581 return PACKET_TYPE_BROADCAST; 3582 else if ((!memcmp(byte_seq, ipv4_mc_mac, 2) && 3583 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 2) || 3584 (!memcmp(byte_seq, ipv6_mc_mac, 3) && 3585 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ] == 3)) 3586 return PACKET_TYPE_MULTICAST; 3587 3588 return 0; 3589 } 3590 3591 static int 3592 mwifiex_fill_coalesce_rule_info(struct mwifiex_private *priv, 3593 struct cfg80211_coalesce_rules *crule, 3594 struct mwifiex_coalesce_rule *mrule) 3595 { 3596 u8 byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ + 1]; 3597 struct filt_field_param *param; 3598 int i; 3599 3600 mrule->max_coalescing_delay = crule->delay; 3601 3602 param = mrule->params; 3603 3604 for (i = 0; i < crule->n_patterns; i++) { 3605 memset(byte_seq, 0, sizeof(byte_seq)); 3606 if (!mwifiex_is_pattern_supported(&crule->patterns[i], 3607 byte_seq, 3608 MWIFIEX_COALESCE_MAX_BYTESEQ)) { 3609 mwifiex_dbg(priv->adapter, ERROR, 3610 "Pattern not supported\n"); 3611 return -EOPNOTSUPP; 3612 } 3613 3614 if (!crule->patterns[i].pkt_offset) { 3615 u8 pkt_type; 3616 3617 pkt_type = mwifiex_get_coalesce_pkt_type(byte_seq); 3618 if (pkt_type && mrule->pkt_type) { 3619 mwifiex_dbg(priv->adapter, ERROR, 3620 "Multiple packet types not allowed\n"); 3621 return -EOPNOTSUPP; 3622 } else if (pkt_type) { 3623 mrule->pkt_type = pkt_type; 3624 continue; 3625 } 3626 } 3627 3628 if (crule->condition == NL80211_COALESCE_CONDITION_MATCH) 3629 param->operation = RECV_FILTER_MATCH_TYPE_EQ; 3630 else 3631 param->operation = RECV_FILTER_MATCH_TYPE_NE; 3632 3633 param->operand_len = byte_seq[MWIFIEX_COALESCE_MAX_BYTESEQ]; 3634 memcpy(param->operand_byte_stream, byte_seq, 3635 param->operand_len); 3636 param->offset = crule->patterns[i].pkt_offset; 3637 param++; 3638 3639 mrule->num_of_fields++; 3640 } 3641 3642 if (!mrule->pkt_type) { 3643 mwifiex_dbg(priv->adapter, ERROR, 3644 "Packet type can not be determined\n"); 3645 return -EOPNOTSUPP; 3646 } 3647 3648 return 0; 3649 } 3650 3651 static int mwifiex_cfg80211_set_coalesce(struct wiphy *wiphy, 3652 struct cfg80211_coalesce *coalesce) 3653 { 3654 struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); 3655 int i, ret; 3656 struct mwifiex_ds_coalesce_cfg coalesce_cfg; 3657 struct mwifiex_private *priv = 3658 mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA); 3659 3660 memset(&coalesce_cfg, 0, sizeof(coalesce_cfg)); 3661 if (!coalesce) { 3662 mwifiex_dbg(adapter, WARN, 3663 "Disable coalesce and reset all previous rules\n"); 3664 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG, 3665 HostCmd_ACT_GEN_SET, 0, 3666 &coalesce_cfg, true); 3667 } 3668 3669 coalesce_cfg.num_of_rules = coalesce->n_rules; 3670 for (i = 0; i < coalesce->n_rules; i++) { 3671 ret = mwifiex_fill_coalesce_rule_info(priv, &coalesce->rules[i], 3672 &coalesce_cfg.rule[i]); 3673 if (ret) { 3674 mwifiex_dbg(adapter, ERROR, 3675 "Recheck the patterns provided for rule %d\n", 3676 i + 1); 3677 return ret; 3678 } 3679 } 3680 3681 return mwifiex_send_cmd(priv, HostCmd_CMD_COALESCE_CFG, 3682 HostCmd_ACT_GEN_SET, 0, &coalesce_cfg, true); 3683 } 3684 3685 /* cfg80211 ops handler for tdls_mgmt. 3686 * Function prepares TDLS action frame packets and forwards them to FW 3687 */ 3688 static int 3689 mwifiex_cfg80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, 3690 const u8 *peer, u8 action_code, u8 dialog_token, 3691 u16 status_code, u32 peer_capability, 3692 bool initiator, const u8 *extra_ies, 3693 size_t extra_ies_len) 3694 { 3695 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3696 int ret; 3697 3698 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) 3699 return -ENOTSUPP; 3700 3701 /* make sure we are in station mode and connected */ 3702 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected)) 3703 return -ENOTSUPP; 3704 3705 switch (action_code) { 3706 case WLAN_TDLS_SETUP_REQUEST: 3707 mwifiex_dbg(priv->adapter, MSG, 3708 "Send TDLS Setup Request to %pM status_code=%d\n", 3709 peer, status_code); 3710 mwifiex_add_auto_tdls_peer(priv, peer); 3711 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3712 dialog_token, status_code, 3713 extra_ies, extra_ies_len); 3714 break; 3715 case WLAN_TDLS_SETUP_RESPONSE: 3716 mwifiex_add_auto_tdls_peer(priv, peer); 3717 mwifiex_dbg(priv->adapter, MSG, 3718 "Send TDLS Setup Response to %pM status_code=%d\n", 3719 peer, status_code); 3720 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3721 dialog_token, status_code, 3722 extra_ies, extra_ies_len); 3723 break; 3724 case WLAN_TDLS_SETUP_CONFIRM: 3725 mwifiex_dbg(priv->adapter, MSG, 3726 "Send TDLS Confirm to %pM status_code=%d\n", peer, 3727 status_code); 3728 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3729 dialog_token, status_code, 3730 extra_ies, extra_ies_len); 3731 break; 3732 case WLAN_TDLS_TEARDOWN: 3733 mwifiex_dbg(priv->adapter, MSG, 3734 "Send TDLS Tear down to %pM\n", peer); 3735 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3736 dialog_token, status_code, 3737 extra_ies, extra_ies_len); 3738 break; 3739 case WLAN_TDLS_DISCOVERY_REQUEST: 3740 mwifiex_dbg(priv->adapter, MSG, 3741 "Send TDLS Discovery Request to %pM\n", peer); 3742 ret = mwifiex_send_tdls_data_frame(priv, peer, action_code, 3743 dialog_token, status_code, 3744 extra_ies, extra_ies_len); 3745 break; 3746 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: 3747 mwifiex_dbg(priv->adapter, MSG, 3748 "Send TDLS Discovery Response to %pM\n", peer); 3749 ret = mwifiex_send_tdls_action_frame(priv, peer, action_code, 3750 dialog_token, status_code, 3751 extra_ies, extra_ies_len); 3752 break; 3753 default: 3754 mwifiex_dbg(priv->adapter, ERROR, 3755 "Unknown TDLS mgmt/action frame %pM\n", peer); 3756 ret = -EINVAL; 3757 break; 3758 } 3759 3760 return ret; 3761 } 3762 3763 static int 3764 mwifiex_cfg80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, 3765 const u8 *peer, enum nl80211_tdls_operation action) 3766 { 3767 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3768 3769 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) || 3770 !(wiphy->flags & WIPHY_FLAG_TDLS_EXTERNAL_SETUP)) 3771 return -ENOTSUPP; 3772 3773 /* make sure we are in station mode and connected */ 3774 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected)) 3775 return -ENOTSUPP; 3776 3777 mwifiex_dbg(priv->adapter, MSG, 3778 "TDLS peer=%pM, oper=%d\n", peer, action); 3779 3780 switch (action) { 3781 case NL80211_TDLS_ENABLE_LINK: 3782 action = MWIFIEX_TDLS_ENABLE_LINK; 3783 break; 3784 case NL80211_TDLS_DISABLE_LINK: 3785 action = MWIFIEX_TDLS_DISABLE_LINK; 3786 break; 3787 case NL80211_TDLS_TEARDOWN: 3788 /* shouldn't happen!*/ 3789 mwifiex_dbg(priv->adapter, ERROR, 3790 "tdls_oper: teardown from driver not supported\n"); 3791 return -EINVAL; 3792 case NL80211_TDLS_SETUP: 3793 /* shouldn't happen!*/ 3794 mwifiex_dbg(priv->adapter, ERROR, 3795 "tdls_oper: setup from driver not supported\n"); 3796 return -EINVAL; 3797 case NL80211_TDLS_DISCOVERY_REQ: 3798 /* shouldn't happen!*/ 3799 mwifiex_dbg(priv->adapter, ERROR, 3800 "tdls_oper: discovery from driver not supported\n"); 3801 return -EINVAL; 3802 default: 3803 mwifiex_dbg(priv->adapter, ERROR, 3804 "tdls_oper: operation not supported\n"); 3805 return -ENOTSUPP; 3806 } 3807 3808 return mwifiex_tdls_oper(priv, peer, action); 3809 } 3810 3811 static int 3812 mwifiex_cfg80211_tdls_chan_switch(struct wiphy *wiphy, struct net_device *dev, 3813 const u8 *addr, u8 oper_class, 3814 struct cfg80211_chan_def *chandef) 3815 { 3816 struct mwifiex_sta_node *sta_ptr; 3817 unsigned long flags; 3818 u16 chan; 3819 u8 second_chan_offset, band; 3820 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3821 3822 spin_lock_irqsave(&priv->sta_list_spinlock, flags); 3823 sta_ptr = mwifiex_get_sta_entry(priv, addr); 3824 if (!sta_ptr) { 3825 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); 3826 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n", 3827 __func__, addr); 3828 return -ENOENT; 3829 } 3830 3831 if (!(sta_ptr->tdls_cap.extcap.ext_capab[3] & 3832 WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)) { 3833 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); 3834 wiphy_err(wiphy, "%pM do not support tdls cs\n", addr); 3835 return -ENOENT; 3836 } 3837 3838 if (sta_ptr->tdls_status == TDLS_CHAN_SWITCHING || 3839 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN) { 3840 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); 3841 wiphy_err(wiphy, "channel switch is running, abort request\n"); 3842 return -EALREADY; 3843 } 3844 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); 3845 3846 chan = chandef->chan->hw_value; 3847 second_chan_offset = mwifiex_get_sec_chan_offset(chan); 3848 band = chandef->chan->band; 3849 mwifiex_start_tdls_cs(priv, addr, chan, second_chan_offset, band); 3850 3851 return 0; 3852 } 3853 3854 static void 3855 mwifiex_cfg80211_tdls_cancel_chan_switch(struct wiphy *wiphy, 3856 struct net_device *dev, 3857 const u8 *addr) 3858 { 3859 struct mwifiex_sta_node *sta_ptr; 3860 unsigned long flags; 3861 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3862 3863 spin_lock_irqsave(&priv->sta_list_spinlock, flags); 3864 sta_ptr = mwifiex_get_sta_entry(priv, addr); 3865 if (!sta_ptr) { 3866 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); 3867 wiphy_err(wiphy, "%s: Invalid TDLS peer %pM\n", 3868 __func__, addr); 3869 } else if (!(sta_ptr->tdls_status == TDLS_CHAN_SWITCHING || 3870 sta_ptr->tdls_status == TDLS_IN_BASE_CHAN || 3871 sta_ptr->tdls_status == TDLS_IN_OFF_CHAN)) { 3872 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); 3873 wiphy_err(wiphy, "tdls chan switch not initialize by %pM\n", 3874 addr); 3875 } else { 3876 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); 3877 mwifiex_stop_tdls_cs(priv, addr); 3878 } 3879 } 3880 3881 static int 3882 mwifiex_cfg80211_add_station(struct wiphy *wiphy, struct net_device *dev, 3883 const u8 *mac, struct station_parameters *params) 3884 { 3885 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3886 3887 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) 3888 return -ENOTSUPP; 3889 3890 /* make sure we are in station mode and connected */ 3891 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected) 3892 return -ENOTSUPP; 3893 3894 return mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CREATE_LINK); 3895 } 3896 3897 static int 3898 mwifiex_cfg80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, 3899 struct cfg80211_csa_settings *params) 3900 { 3901 struct ieee_types_header *chsw_ie; 3902 struct ieee80211_channel_sw_ie *channel_sw; 3903 int chsw_msec; 3904 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 3905 3906 if (priv->adapter->scan_processing) { 3907 mwifiex_dbg(priv->adapter, ERROR, 3908 "radar detection: scan in process...\n"); 3909 return -EBUSY; 3910 } 3911 3912 if (priv->wdev.cac_started) 3913 return -EBUSY; 3914 3915 if (cfg80211_chandef_identical(¶ms->chandef, 3916 &priv->dfs_chandef)) 3917 return -EINVAL; 3918 3919 chsw_ie = (void *)cfg80211_find_ie(WLAN_EID_CHANNEL_SWITCH, 3920 params->beacon_csa.tail, 3921 params->beacon_csa.tail_len); 3922 if (!chsw_ie) { 3923 mwifiex_dbg(priv->adapter, ERROR, 3924 "Could not parse channel switch announcement IE\n"); 3925 return -EINVAL; 3926 } 3927 3928 channel_sw = (void *)(chsw_ie + 1); 3929 if (channel_sw->mode) { 3930 if (netif_carrier_ok(priv->netdev)) 3931 netif_carrier_off(priv->netdev); 3932 mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter); 3933 } 3934 3935 if (mwifiex_del_mgmt_ies(priv)) 3936 mwifiex_dbg(priv->adapter, ERROR, 3937 "Failed to delete mgmt IEs!\n"); 3938 3939 if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon_csa)) { 3940 mwifiex_dbg(priv->adapter, ERROR, 3941 "%s: setting mgmt ies failed\n", __func__); 3942 return -EFAULT; 3943 } 3944 3945 memcpy(&priv->dfs_chandef, ¶ms->chandef, sizeof(priv->dfs_chandef)); 3946 memcpy(&priv->beacon_after, ¶ms->beacon_after, 3947 sizeof(priv->beacon_after)); 3948 3949 chsw_msec = max(channel_sw->count * priv->bss_cfg.beacon_period, 100); 3950 queue_delayed_work(priv->dfs_chan_sw_workqueue, &priv->dfs_chan_sw_work, 3951 msecs_to_jiffies(chsw_msec)); 3952 return 0; 3953 } 3954 3955 static int mwifiex_cfg80211_get_channel(struct wiphy *wiphy, 3956 struct wireless_dev *wdev, 3957 struct cfg80211_chan_def *chandef) 3958 { 3959 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 3960 struct mwifiex_bssdescriptor *curr_bss; 3961 struct ieee80211_channel *chan; 3962 enum nl80211_channel_type chan_type; 3963 enum nl80211_band band; 3964 int freq; 3965 int ret = -ENODATA; 3966 3967 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP && 3968 cfg80211_chandef_valid(&priv->bss_chandef)) { 3969 *chandef = priv->bss_chandef; 3970 ret = 0; 3971 } else if (priv->media_connected) { 3972 curr_bss = &priv->curr_bss_params.bss_descriptor; 3973 band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); 3974 freq = ieee80211_channel_to_frequency(curr_bss->channel, band); 3975 chan = ieee80211_get_channel(wiphy, freq); 3976 3977 if (priv->ht_param_present) { 3978 chan_type = mwifiex_get_chan_type(priv); 3979 cfg80211_chandef_create(chandef, chan, chan_type); 3980 } else { 3981 cfg80211_chandef_create(chandef, chan, 3982 NL80211_CHAN_NO_HT); 3983 } 3984 ret = 0; 3985 } 3986 3987 return ret; 3988 } 3989 3990 #ifdef CONFIG_NL80211_TESTMODE 3991 3992 enum mwifiex_tm_attr { 3993 __MWIFIEX_TM_ATTR_INVALID = 0, 3994 MWIFIEX_TM_ATTR_CMD = 1, 3995 MWIFIEX_TM_ATTR_DATA = 2, 3996 3997 /* keep last */ 3998 __MWIFIEX_TM_ATTR_AFTER_LAST, 3999 MWIFIEX_TM_ATTR_MAX = __MWIFIEX_TM_ATTR_AFTER_LAST - 1, 4000 }; 4001 4002 static const struct nla_policy mwifiex_tm_policy[MWIFIEX_TM_ATTR_MAX + 1] = { 4003 [MWIFIEX_TM_ATTR_CMD] = { .type = NLA_U32 }, 4004 [MWIFIEX_TM_ATTR_DATA] = { .type = NLA_BINARY, 4005 .len = MWIFIEX_SIZE_OF_CMD_BUFFER }, 4006 }; 4007 4008 enum mwifiex_tm_command { 4009 MWIFIEX_TM_CMD_HOSTCMD = 0, 4010 }; 4011 4012 static int mwifiex_tm_cmd(struct wiphy *wiphy, struct wireless_dev *wdev, 4013 void *data, int len) 4014 { 4015 struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); 4016 struct mwifiex_ds_misc_cmd *hostcmd; 4017 struct nlattr *tb[MWIFIEX_TM_ATTR_MAX + 1]; 4018 struct sk_buff *skb; 4019 int err; 4020 4021 if (!priv) 4022 return -EINVAL; 4023 4024 err = nla_parse(tb, MWIFIEX_TM_ATTR_MAX, data, len, mwifiex_tm_policy, 4025 NULL); 4026 if (err) 4027 return err; 4028 4029 if (!tb[MWIFIEX_TM_ATTR_CMD]) 4030 return -EINVAL; 4031 4032 switch (nla_get_u32(tb[MWIFIEX_TM_ATTR_CMD])) { 4033 case MWIFIEX_TM_CMD_HOSTCMD: 4034 if (!tb[MWIFIEX_TM_ATTR_DATA]) 4035 return -EINVAL; 4036 4037 hostcmd = kzalloc(sizeof(*hostcmd), GFP_KERNEL); 4038 if (!hostcmd) 4039 return -ENOMEM; 4040 4041 hostcmd->len = nla_len(tb[MWIFIEX_TM_ATTR_DATA]); 4042 memcpy(hostcmd->cmd, nla_data(tb[MWIFIEX_TM_ATTR_DATA]), 4043 hostcmd->len); 4044 4045 if (mwifiex_send_cmd(priv, 0, 0, 0, hostcmd, true)) { 4046 dev_err(priv->adapter->dev, "Failed to process hostcmd\n"); 4047 return -EFAULT; 4048 } 4049 4050 /* process hostcmd response*/ 4051 skb = cfg80211_testmode_alloc_reply_skb(wiphy, hostcmd->len); 4052 if (!skb) 4053 return -ENOMEM; 4054 err = nla_put(skb, MWIFIEX_TM_ATTR_DATA, 4055 hostcmd->len, hostcmd->cmd); 4056 if (err) { 4057 kfree_skb(skb); 4058 return -EMSGSIZE; 4059 } 4060 4061 err = cfg80211_testmode_reply(skb); 4062 kfree(hostcmd); 4063 return err; 4064 default: 4065 return -EOPNOTSUPP; 4066 } 4067 } 4068 #endif 4069 4070 static int 4071 mwifiex_cfg80211_start_radar_detection(struct wiphy *wiphy, 4072 struct net_device *dev, 4073 struct cfg80211_chan_def *chandef, 4074 u32 cac_time_ms) 4075 { 4076 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 4077 struct mwifiex_radar_params radar_params; 4078 4079 if (priv->adapter->scan_processing) { 4080 mwifiex_dbg(priv->adapter, ERROR, 4081 "radar detection: scan already in process...\n"); 4082 return -EBUSY; 4083 } 4084 4085 if (!mwifiex_is_11h_active(priv)) { 4086 mwifiex_dbg(priv->adapter, INFO, 4087 "Enable 11h extensions in FW\n"); 4088 if (mwifiex_11h_activate(priv, true)) { 4089 mwifiex_dbg(priv->adapter, ERROR, 4090 "Failed to activate 11h extensions!!"); 4091 return -1; 4092 } 4093 priv->state_11h.is_11h_active = true; 4094 } 4095 4096 memset(&radar_params, 0, sizeof(struct mwifiex_radar_params)); 4097 radar_params.chandef = chandef; 4098 radar_params.cac_time_ms = cac_time_ms; 4099 4100 memcpy(&priv->dfs_chandef, chandef, sizeof(priv->dfs_chandef)); 4101 4102 if (mwifiex_send_cmd(priv, HostCmd_CMD_CHAN_REPORT_REQUEST, 4103 HostCmd_ACT_GEN_SET, 0, &radar_params, true)) 4104 return -1; 4105 4106 queue_delayed_work(priv->dfs_cac_workqueue, &priv->dfs_cac_work, 4107 msecs_to_jiffies(cac_time_ms)); 4108 return 0; 4109 } 4110 4111 static int 4112 mwifiex_cfg80211_change_station(struct wiphy *wiphy, struct net_device *dev, 4113 const u8 *mac, 4114 struct station_parameters *params) 4115 { 4116 int ret; 4117 struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); 4118 4119 /* we support change_station handler only for TDLS peers*/ 4120 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) 4121 return -ENOTSUPP; 4122 4123 /* make sure we are in station mode and connected */ 4124 if ((priv->bss_type != MWIFIEX_BSS_TYPE_STA) || !priv->media_connected) 4125 return -ENOTSUPP; 4126 4127 priv->sta_params = params; 4128 4129 ret = mwifiex_tdls_oper(priv, mac, MWIFIEX_TDLS_CONFIG_LINK); 4130 priv->sta_params = NULL; 4131 4132 return ret; 4133 } 4134 4135 /* station cfg80211 operations */ 4136 static struct cfg80211_ops mwifiex_cfg80211_ops = { 4137 .add_virtual_intf = mwifiex_add_virtual_intf, 4138 .del_virtual_intf = mwifiex_del_virtual_intf, 4139 .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf, 4140 .scan = mwifiex_cfg80211_scan, 4141 .connect = mwifiex_cfg80211_connect, 4142 .disconnect = mwifiex_cfg80211_disconnect, 4143 .get_station = mwifiex_cfg80211_get_station, 4144 .dump_station = mwifiex_cfg80211_dump_station, 4145 .dump_survey = mwifiex_cfg80211_dump_survey, 4146 .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params, 4147 .join_ibss = mwifiex_cfg80211_join_ibss, 4148 .leave_ibss = mwifiex_cfg80211_leave_ibss, 4149 .add_key = mwifiex_cfg80211_add_key, 4150 .del_key = mwifiex_cfg80211_del_key, 4151 .set_default_mgmt_key = mwifiex_cfg80211_set_default_mgmt_key, 4152 .mgmt_tx = mwifiex_cfg80211_mgmt_tx, 4153 .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register, 4154 .remain_on_channel = mwifiex_cfg80211_remain_on_channel, 4155 .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel, 4156 .set_default_key = mwifiex_cfg80211_set_default_key, 4157 .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt, 4158 .set_tx_power = mwifiex_cfg80211_set_tx_power, 4159 .get_tx_power = mwifiex_cfg80211_get_tx_power, 4160 .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask, 4161 .start_ap = mwifiex_cfg80211_start_ap, 4162 .stop_ap = mwifiex_cfg80211_stop_ap, 4163 .change_beacon = mwifiex_cfg80211_change_beacon, 4164 .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config, 4165 .set_antenna = mwifiex_cfg80211_set_antenna, 4166 .get_antenna = mwifiex_cfg80211_get_antenna, 4167 .del_station = mwifiex_cfg80211_del_station, 4168 .sched_scan_start = mwifiex_cfg80211_sched_scan_start, 4169 .sched_scan_stop = mwifiex_cfg80211_sched_scan_stop, 4170 #ifdef CONFIG_PM 4171 .suspend = mwifiex_cfg80211_suspend, 4172 .resume = mwifiex_cfg80211_resume, 4173 .set_wakeup = mwifiex_cfg80211_set_wakeup, 4174 .set_rekey_data = mwifiex_set_rekey_data, 4175 #endif 4176 .set_coalesce = mwifiex_cfg80211_set_coalesce, 4177 .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt, 4178 .tdls_oper = mwifiex_cfg80211_tdls_oper, 4179 .tdls_channel_switch = mwifiex_cfg80211_tdls_chan_switch, 4180 .tdls_cancel_channel_switch = mwifiex_cfg80211_tdls_cancel_chan_switch, 4181 .add_station = mwifiex_cfg80211_add_station, 4182 .change_station = mwifiex_cfg80211_change_station, 4183 CFG80211_TESTMODE_CMD(mwifiex_tm_cmd) 4184 .get_channel = mwifiex_cfg80211_get_channel, 4185 .start_radar_detection = mwifiex_cfg80211_start_radar_detection, 4186 .channel_switch = mwifiex_cfg80211_channel_switch, 4187 }; 4188 4189 #ifdef CONFIG_PM 4190 static const struct wiphy_wowlan_support mwifiex_wowlan_support = { 4191 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT | 4192 WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | 4193 WIPHY_WOWLAN_GTK_REKEY_FAILURE, 4194 .n_patterns = MWIFIEX_MEF_MAX_FILTERS, 4195 .pattern_min_len = 1, 4196 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4197 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4198 .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS, 4199 }; 4200 4201 static const struct wiphy_wowlan_support mwifiex_wowlan_support_no_gtk = { 4202 .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT | 4203 WIPHY_WOWLAN_NET_DETECT, 4204 .n_patterns = MWIFIEX_MEF_MAX_FILTERS, 4205 .pattern_min_len = 1, 4206 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4207 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4208 .max_nd_match_sets = MWIFIEX_MAX_ND_MATCH_SETS, 4209 }; 4210 #endif 4211 4212 static bool mwifiex_is_valid_alpha2(const char *alpha2) 4213 { 4214 if (!alpha2 || strlen(alpha2) != 2) 4215 return false; 4216 4217 if (isalpha(alpha2[0]) && isalpha(alpha2[1])) 4218 return true; 4219 4220 return false; 4221 } 4222 4223 static const struct wiphy_coalesce_support mwifiex_coalesce_support = { 4224 .n_rules = MWIFIEX_COALESCE_MAX_RULES, 4225 .max_delay = MWIFIEX_MAX_COALESCING_DELAY, 4226 .n_patterns = MWIFIEX_COALESCE_MAX_FILTERS, 4227 .pattern_min_len = 1, 4228 .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, 4229 .max_pkt_offset = MWIFIEX_MAX_OFFSET_LEN, 4230 }; 4231 4232 int mwifiex_init_channel_scan_gap(struct mwifiex_adapter *adapter) 4233 { 4234 u32 n_channels_bg, n_channels_a = 0; 4235 4236 n_channels_bg = mwifiex_band_2ghz.n_channels; 4237 4238 if (adapter->config_bands & BAND_A) 4239 n_channels_a = mwifiex_band_5ghz.n_channels; 4240 4241 /* allocate twice the number total channels, since the driver issues an 4242 * additional active scan request for hidden SSIDs on passive channels. 4243 */ 4244 adapter->num_in_chan_stats = 2 * (n_channels_bg + n_channels_a); 4245 adapter->chan_stats = vmalloc(array_size(sizeof(*adapter->chan_stats), 4246 adapter->num_in_chan_stats)); 4247 4248 if (!adapter->chan_stats) 4249 return -ENOMEM; 4250 4251 return 0; 4252 } 4253 4254 /* 4255 * This function registers the device with CFG802.11 subsystem. 4256 * 4257 * The function creates the wireless device/wiphy, populates it with 4258 * default parameters and handler function pointers, and finally 4259 * registers the device. 4260 */ 4261 4262 int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter) 4263 { 4264 int ret; 4265 void *wdev_priv; 4266 struct wiphy *wiphy; 4267 struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA]; 4268 u8 *country_code; 4269 u32 thr, retry; 4270 4271 /* create a new wiphy for use with cfg80211 */ 4272 wiphy = wiphy_new(&mwifiex_cfg80211_ops, 4273 sizeof(struct mwifiex_adapter *)); 4274 if (!wiphy) { 4275 mwifiex_dbg(adapter, ERROR, 4276 "%s: creating new wiphy\n", __func__); 4277 return -ENOMEM; 4278 } 4279 wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH; 4280 wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN; 4281 wiphy->mgmt_stypes = mwifiex_mgmt_stypes; 4282 wiphy->max_remain_on_channel_duration = 5000; 4283 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 4284 BIT(NL80211_IFTYPE_ADHOC) | 4285 BIT(NL80211_IFTYPE_P2P_CLIENT) | 4286 BIT(NL80211_IFTYPE_P2P_GO) | 4287 BIT(NL80211_IFTYPE_AP); 4288 4289 wiphy->bands[NL80211_BAND_2GHZ] = &mwifiex_band_2ghz; 4290 if (adapter->config_bands & BAND_A) 4291 wiphy->bands[NL80211_BAND_5GHZ] = &mwifiex_band_5ghz; 4292 else 4293 wiphy->bands[NL80211_BAND_5GHZ] = NULL; 4294 4295 if (adapter->drcs_enabled && ISSUPP_DRCS_ENABLED(adapter->fw_cap_info)) 4296 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_drcs; 4297 else if (adapter->is_hw_11ac_capable) 4298 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta_vht; 4299 else 4300 wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta; 4301 wiphy->n_iface_combinations = 1; 4302 4303 /* Initialize cipher suits */ 4304 wiphy->cipher_suites = mwifiex_cipher_suites; 4305 wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites); 4306 4307 if (adapter->regd) { 4308 wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG | 4309 REGULATORY_DISABLE_BEACON_HINTS | 4310 REGULATORY_COUNTRY_IE_IGNORE; 4311 wiphy_apply_custom_regulatory(wiphy, adapter->regd); 4312 } 4313 4314 ether_addr_copy(wiphy->perm_addr, adapter->perm_addr); 4315 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 4316 wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | 4317 WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | 4318 WIPHY_FLAG_AP_UAPSD | 4319 WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL | 4320 WIPHY_FLAG_HAS_CHANNEL_SWITCH | 4321 WIPHY_FLAG_PS_ON_BY_DEFAULT; 4322 4323 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info)) 4324 wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS | 4325 WIPHY_FLAG_TDLS_EXTERNAL_SETUP; 4326 4327 #ifdef CONFIG_PM 4328 if (ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info)) 4329 wiphy->wowlan = &mwifiex_wowlan_support; 4330 else 4331 wiphy->wowlan = &mwifiex_wowlan_support_no_gtk; 4332 #endif 4333 4334 wiphy->coalesce = &mwifiex_coalesce_support; 4335 4336 wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | 4337 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | 4338 NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; 4339 4340 wiphy->max_sched_scan_reqs = 1; 4341 wiphy->max_sched_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH; 4342 wiphy->max_sched_scan_ie_len = MWIFIEX_MAX_VSIE_LEN; 4343 wiphy->max_match_sets = MWIFIEX_MAX_SSID_LIST_LENGTH; 4344 4345 wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1; 4346 wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1; 4347 4348 wiphy->features |= NL80211_FEATURE_HT_IBSS | 4349 NL80211_FEATURE_INACTIVITY_TIMER | 4350 NL80211_FEATURE_LOW_PRIORITY_SCAN | 4351 NL80211_FEATURE_NEED_OBSS_SCAN; 4352 4353 if (ISSUPP_RANDOM_MAC(adapter->fw_cap_info)) 4354 wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR | 4355 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR | 4356 NL80211_FEATURE_ND_RANDOM_MAC_ADDR; 4357 4358 if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info)) 4359 wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH; 4360 4361 if (adapter->fw_api_ver == MWIFIEX_FW_V15) 4362 wiphy->features |= NL80211_FEATURE_SK_TX_STATUS; 4363 4364 /* Reserve space for mwifiex specific private data for BSS */ 4365 wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv); 4366 4367 wiphy->reg_notifier = mwifiex_reg_notifier; 4368 4369 /* Set struct mwifiex_adapter pointer in wiphy_priv */ 4370 wdev_priv = wiphy_priv(wiphy); 4371 *(unsigned long *)wdev_priv = (unsigned long)adapter; 4372 4373 set_wiphy_dev(wiphy, priv->adapter->dev); 4374 4375 ret = wiphy_register(wiphy); 4376 if (ret < 0) { 4377 mwifiex_dbg(adapter, ERROR, 4378 "%s: wiphy_register failed: %d\n", __func__, ret); 4379 wiphy_free(wiphy); 4380 return ret; 4381 } 4382 4383 if (!adapter->regd) { 4384 if (reg_alpha2 && mwifiex_is_valid_alpha2(reg_alpha2)) { 4385 mwifiex_dbg(adapter, INFO, 4386 "driver hint alpha2: %2.2s\n", reg_alpha2); 4387 regulatory_hint(wiphy, reg_alpha2); 4388 } else { 4389 if (adapter->region_code == 0x00) { 4390 mwifiex_dbg(adapter, WARN, 4391 "Ignore world regulatory domain\n"); 4392 } else { 4393 wiphy->regulatory_flags |= 4394 REGULATORY_DISABLE_BEACON_HINTS | 4395 REGULATORY_COUNTRY_IE_IGNORE; 4396 country_code = 4397 mwifiex_11d_code_2_region( 4398 adapter->region_code); 4399 if (country_code && 4400 regulatory_hint(wiphy, country_code)) 4401 mwifiex_dbg(priv->adapter, ERROR, 4402 "regulatory_hint() failed\n"); 4403 } 4404 } 4405 } 4406 4407 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4408 HostCmd_ACT_GEN_GET, FRAG_THRESH_I, &thr, true); 4409 wiphy->frag_threshold = thr; 4410 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4411 HostCmd_ACT_GEN_GET, RTS_THRESH_I, &thr, true); 4412 wiphy->rts_threshold = thr; 4413 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4414 HostCmd_ACT_GEN_GET, SHORT_RETRY_LIM_I, &retry, true); 4415 wiphy->retry_short = (u8) retry; 4416 mwifiex_send_cmd(priv, HostCmd_CMD_802_11_SNMP_MIB, 4417 HostCmd_ACT_GEN_GET, LONG_RETRY_LIM_I, &retry, true); 4418 wiphy->retry_long = (u8) retry; 4419 4420 adapter->wiphy = wiphy; 4421 return ret; 4422 } 4423