1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2012 - 2018 Microchip Technology Inc., and its subsidiaries. 4 * All rights reserved. 5 */ 6 7 #include "cfg80211.h" 8 9 #define GO_NEG_REQ 0x00 10 #define GO_NEG_RSP 0x01 11 #define GO_NEG_CONF 0x02 12 #define P2P_INV_REQ 0x03 13 #define P2P_INV_RSP 0x04 14 15 #define WILC_INVALID_CHANNEL 0 16 17 /* Operation at 2.4 GHz with channels 1-13 */ 18 #define WILC_WLAN_OPERATING_CLASS_2_4GHZ 0x51 19 20 static const struct ieee80211_txrx_stypes 21 wilc_wfi_cfg80211_mgmt_types[NUM_NL80211_IFTYPES] = { 22 [NL80211_IFTYPE_STATION] = { 23 .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | 24 BIT(IEEE80211_STYPE_AUTH >> 4), 25 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 26 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | 27 BIT(IEEE80211_STYPE_AUTH >> 4) 28 }, 29 [NL80211_IFTYPE_AP] = { 30 .tx = 0xffff, 31 .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | 32 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | 33 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | 34 BIT(IEEE80211_STYPE_DISASSOC >> 4) | 35 BIT(IEEE80211_STYPE_AUTH >> 4) | 36 BIT(IEEE80211_STYPE_DEAUTH >> 4) | 37 BIT(IEEE80211_STYPE_ACTION >> 4) 38 }, 39 [NL80211_IFTYPE_P2P_CLIENT] = { 40 .tx = 0xffff, 41 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 42 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | 43 BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | 44 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | 45 BIT(IEEE80211_STYPE_DISASSOC >> 4) | 46 BIT(IEEE80211_STYPE_AUTH >> 4) | 47 BIT(IEEE80211_STYPE_DEAUTH >> 4) 48 } 49 }; 50 51 #ifdef CONFIG_PM 52 static const struct wiphy_wowlan_support wowlan_support = { 53 .flags = WIPHY_WOWLAN_ANY 54 }; 55 #endif 56 57 struct wilc_p2p_mgmt_data { 58 int size; 59 u8 *buff; 60 }; 61 62 struct wilc_p2p_pub_act_frame { 63 u8 category; 64 u8 action; 65 u8 oui[3]; 66 u8 oui_type; 67 u8 oui_subtype; 68 u8 dialog_token; 69 u8 elem[]; 70 } __packed; 71 72 struct wilc_vendor_specific_ie { 73 u8 tag_number; 74 u8 tag_len; 75 u8 oui[3]; 76 u8 oui_type; 77 u8 attr[]; 78 } __packed; 79 80 struct wilc_attr_entry { 81 u8 attr_type; 82 __le16 attr_len; 83 u8 val[]; 84 } __packed; 85 86 struct wilc_attr_oper_ch { 87 u8 attr_type; 88 __le16 attr_len; 89 u8 country_code[IEEE80211_COUNTRY_STRING_LEN]; 90 u8 op_class; 91 u8 op_channel; 92 } __packed; 93 94 struct wilc_attr_ch_list { 95 u8 attr_type; 96 __le16 attr_len; 97 u8 country_code[IEEE80211_COUNTRY_STRING_LEN]; 98 u8 elem[]; 99 } __packed; 100 101 struct wilc_ch_list_elem { 102 u8 op_class; 103 u8 no_of_channels; 104 u8 ch_list[]; 105 } __packed; 106 107 static void cfg_scan_result(enum scan_event scan_event, 108 struct wilc_rcvd_net_info *info, 109 struct wilc_priv *priv) 110 { 111 if (!priv->cfg_scanning) 112 return; 113 114 if (scan_event == SCAN_EVENT_NETWORK_FOUND) { 115 s32 freq; 116 struct ieee80211_channel *channel; 117 struct cfg80211_bss *bss; 118 struct wiphy *wiphy = priv->dev->ieee80211_ptr->wiphy; 119 120 if (!wiphy || !info) 121 return; 122 123 freq = ieee80211_channel_to_frequency((s32)info->ch, 124 NL80211_BAND_2GHZ); 125 channel = ieee80211_get_channel(wiphy, freq); 126 if (!channel) 127 return; 128 129 bss = cfg80211_inform_bss_frame(wiphy, channel, info->mgmt, 130 info->frame_len, 131 (s32)info->rssi * 100, 132 GFP_KERNEL); 133 cfg80211_put_bss(wiphy, bss); 134 } else if (scan_event == SCAN_EVENT_DONE) { 135 mutex_lock(&priv->scan_req_lock); 136 137 if (priv->scan_req) { 138 struct cfg80211_scan_info info = { 139 .aborted = false, 140 }; 141 142 cfg80211_scan_done(priv->scan_req, &info); 143 priv->cfg_scanning = false; 144 priv->scan_req = NULL; 145 } 146 mutex_unlock(&priv->scan_req_lock); 147 } else if (scan_event == SCAN_EVENT_ABORTED) { 148 mutex_lock(&priv->scan_req_lock); 149 150 if (priv->scan_req) { 151 struct cfg80211_scan_info info = { 152 .aborted = false, 153 }; 154 155 cfg80211_scan_done(priv->scan_req, &info); 156 priv->cfg_scanning = false; 157 priv->scan_req = NULL; 158 } 159 mutex_unlock(&priv->scan_req_lock); 160 } 161 } 162 163 static void cfg_connect_result(enum conn_event conn_disconn_evt, u8 mac_status, 164 struct wilc_priv *priv) 165 { 166 struct net_device *dev = priv->dev; 167 struct wilc_vif *vif = netdev_priv(dev); 168 struct wilc *wl = vif->wilc; 169 struct host_if_drv *wfi_drv = priv->hif_drv; 170 struct wilc_conn_info *conn_info = &wfi_drv->conn_info; 171 struct wiphy *wiphy = dev->ieee80211_ptr->wiphy; 172 173 vif->connecting = false; 174 175 if (conn_disconn_evt == CONN_DISCONN_EVENT_CONN_RESP) { 176 u16 connect_status = conn_info->status; 177 178 if (mac_status == WILC_MAC_STATUS_DISCONNECTED && 179 connect_status == WLAN_STATUS_SUCCESS) { 180 connect_status = WLAN_STATUS_UNSPECIFIED_FAILURE; 181 wilc_wlan_set_bssid(priv->dev, NULL, WILC_STATION_MODE); 182 183 if (vif->iftype != WILC_CLIENT_MODE) 184 wl->sta_ch = WILC_INVALID_CHANNEL; 185 186 netdev_err(dev, "Unspecified failure\n"); 187 } 188 189 if (connect_status == WLAN_STATUS_SUCCESS) 190 memcpy(priv->associated_bss, conn_info->bssid, 191 ETH_ALEN); 192 193 cfg80211_ref_bss(wiphy, vif->bss); 194 cfg80211_connect_bss(dev, conn_info->bssid, vif->bss, 195 conn_info->req_ies, 196 conn_info->req_ies_len, 197 conn_info->resp_ies, 198 conn_info->resp_ies_len, 199 connect_status, GFP_KERNEL, 200 NL80211_TIMEOUT_UNSPECIFIED); 201 202 vif->bss = NULL; 203 } else if (conn_disconn_evt == CONN_DISCONN_EVENT_DISCONN_NOTIF) { 204 u16 reason = 0; 205 206 eth_zero_addr(priv->associated_bss); 207 wilc_wlan_set_bssid(priv->dev, NULL, WILC_STATION_MODE); 208 209 if (vif->iftype != WILC_CLIENT_MODE) { 210 wl->sta_ch = WILC_INVALID_CHANNEL; 211 } else { 212 if (wfi_drv->ifc_up) 213 reason = 3; 214 else 215 reason = 1; 216 } 217 218 cfg80211_disconnected(dev, reason, NULL, 0, false, GFP_KERNEL); 219 } 220 } 221 222 struct wilc_vif *wilc_get_wl_to_vif(struct wilc *wl) 223 { 224 struct wilc_vif *vif; 225 226 vif = list_first_or_null_rcu(&wl->vif_list, typeof(*vif), list); 227 if (!vif) 228 return ERR_PTR(-EINVAL); 229 230 return vif; 231 } 232 233 static int set_channel(struct wiphy *wiphy, 234 struct net_device *dev, 235 struct cfg80211_chan_def *chandef) 236 { 237 struct wilc *wl = wiphy_priv(wiphy); 238 struct wilc_vif *vif; 239 u32 channelnum; 240 int result; 241 int srcu_idx; 242 243 srcu_idx = srcu_read_lock(&wl->srcu); 244 vif = wilc_get_wl_to_vif(wl); 245 if (IS_ERR(vif)) { 246 srcu_read_unlock(&wl->srcu, srcu_idx); 247 return PTR_ERR(vif); 248 } 249 250 channelnum = ieee80211_frequency_to_channel(chandef->chan->center_freq); 251 252 wl->op_ch = channelnum; 253 result = wilc_set_mac_chnl_num(vif, channelnum); 254 if (result) 255 netdev_err(vif->ndev, "Error in setting channel\n"); 256 257 srcu_read_unlock(&wl->srcu, srcu_idx); 258 return result; 259 } 260 261 static int scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) 262 { 263 struct wilc_vif *vif = netdev_priv(request->wdev->netdev); 264 struct wilc_priv *priv = &vif->priv; 265 u32 i; 266 int ret = 0; 267 u8 scan_ch_list[WILC_MAX_NUM_SCANNED_CH]; 268 u8 scan_type; 269 270 if (request->n_channels > WILC_MAX_NUM_SCANNED_CH) { 271 netdev_err(vif->ndev, "Requested scanned channels over\n"); 272 return -EINVAL; 273 } 274 275 priv->scan_req = request; 276 priv->cfg_scanning = true; 277 for (i = 0; i < request->n_channels; i++) { 278 u16 freq = request->channels[i]->center_freq; 279 280 scan_ch_list[i] = ieee80211_frequency_to_channel(freq); 281 } 282 283 if (request->n_ssids) 284 scan_type = WILC_FW_ACTIVE_SCAN; 285 else 286 scan_type = WILC_FW_PASSIVE_SCAN; 287 288 ret = wilc_scan(vif, WILC_FW_USER_SCAN, scan_type, 289 scan_ch_list, cfg_scan_result, request); 290 291 if (ret) { 292 priv->scan_req = NULL; 293 priv->cfg_scanning = false; 294 } 295 296 return ret; 297 } 298 299 static int connect(struct wiphy *wiphy, struct net_device *dev, 300 struct cfg80211_connect_params *sme) 301 { 302 struct wilc_vif *vif = netdev_priv(dev); 303 struct wilc_priv *priv = &vif->priv; 304 struct host_if_drv *wfi_drv = priv->hif_drv; 305 int ret; 306 u32 i; 307 u8 security = WILC_FW_SEC_NO; 308 enum mfptype mfp_type = WILC_FW_MFP_NONE; 309 enum authtype auth_type = WILC_FW_AUTH_ANY; 310 u32 cipher_group; 311 struct cfg80211_bss *bss; 312 void *join_params; 313 u8 ch; 314 315 vif->connecting = true; 316 317 cipher_group = sme->crypto.cipher_group; 318 if (cipher_group != 0) { 319 if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2) { 320 if (cipher_group == WLAN_CIPHER_SUITE_TKIP) 321 security = WILC_FW_SEC_WPA2_TKIP; 322 else 323 security = WILC_FW_SEC_WPA2_AES; 324 } else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1) { 325 if (cipher_group == WLAN_CIPHER_SUITE_TKIP) 326 security = WILC_FW_SEC_WPA_TKIP; 327 else 328 security = WILC_FW_SEC_WPA_AES; 329 } else { 330 ret = -ENOTSUPP; 331 netdev_err(dev, "%s: Unsupported cipher\n", 332 __func__); 333 goto out_error; 334 } 335 } 336 337 if ((sme->crypto.wpa_versions & NL80211_WPA_VERSION_1) || 338 (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)) { 339 for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++) { 340 u32 ciphers_pairwise = sme->crypto.ciphers_pairwise[i]; 341 342 if (ciphers_pairwise == WLAN_CIPHER_SUITE_TKIP) 343 security |= WILC_FW_TKIP; 344 else 345 security |= WILC_FW_AES; 346 } 347 } 348 349 switch (sme->auth_type) { 350 case NL80211_AUTHTYPE_OPEN_SYSTEM: 351 auth_type = WILC_FW_AUTH_OPEN_SYSTEM; 352 break; 353 354 case NL80211_AUTHTYPE_SAE: 355 auth_type = WILC_FW_AUTH_SAE; 356 if (sme->ssid_len) { 357 memcpy(vif->auth.ssid.ssid, sme->ssid, sme->ssid_len); 358 vif->auth.ssid.ssid_len = sme->ssid_len; 359 } 360 vif->auth.key_mgmt_suite = sme->crypto.akm_suites[0]; 361 ether_addr_copy(vif->auth.bssid, sme->bssid); 362 break; 363 364 default: 365 break; 366 } 367 368 if (sme->crypto.n_akm_suites) { 369 if (sme->crypto.akm_suites[0] == WLAN_AKM_SUITE_8021X) 370 auth_type = WILC_FW_AUTH_IEEE8021; 371 else if (sme->crypto.akm_suites[0] == WLAN_AKM_SUITE_PSK_SHA256) 372 auth_type = WILC_FW_AUTH_OPEN_SYSTEM_SHA256; 373 else if (sme->crypto.akm_suites[0] == WLAN_AKM_SUITE_8021X_SHA256) 374 auth_type = WILC_FW_AUTH_IEE8021X_SHA256; 375 } 376 377 if (wfi_drv->usr_scan_req.scan_result) { 378 netdev_err(vif->ndev, "%s: Scan in progress\n", __func__); 379 ret = -EBUSY; 380 goto out_error; 381 } 382 383 bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid, sme->ssid, 384 sme->ssid_len, IEEE80211_BSS_TYPE_ANY, 385 IEEE80211_PRIVACY(sme->privacy)); 386 if (!bss) { 387 ret = -EINVAL; 388 goto out_error; 389 } 390 391 if (ether_addr_equal_unaligned(vif->bssid, bss->bssid)) { 392 ret = -EALREADY; 393 goto out_put_bss; 394 } 395 396 join_params = wilc_parse_join_bss_param(bss, &sme->crypto); 397 if (!join_params) { 398 netdev_err(dev, "%s: failed to construct join param\n", 399 __func__); 400 ret = -EINVAL; 401 goto out_put_bss; 402 } 403 404 ch = ieee80211_frequency_to_channel(bss->channel->center_freq); 405 vif->wilc->op_ch = ch; 406 if (vif->iftype != WILC_CLIENT_MODE) 407 vif->wilc->sta_ch = ch; 408 409 wilc_wlan_set_bssid(dev, bss->bssid, WILC_STATION_MODE); 410 411 wfi_drv->conn_info.security = security; 412 wfi_drv->conn_info.auth_type = auth_type; 413 wfi_drv->conn_info.conn_result = cfg_connect_result; 414 wfi_drv->conn_info.priv = priv; 415 wfi_drv->conn_info.param = join_params; 416 417 if (sme->mfp == NL80211_MFP_OPTIONAL) 418 mfp_type = WILC_FW_MFP_OPTIONAL; 419 else if (sme->mfp == NL80211_MFP_REQUIRED) 420 mfp_type = WILC_FW_MFP_REQUIRED; 421 422 wfi_drv->conn_info.mfp_type = mfp_type; 423 424 ret = wilc_set_join_req(vif, bss->bssid, sme->ie, sme->ie_len); 425 if (ret) { 426 netdev_err(dev, "wilc_set_join_req(): Error\n"); 427 ret = -ENOENT; 428 if (vif->iftype != WILC_CLIENT_MODE) 429 vif->wilc->sta_ch = WILC_INVALID_CHANNEL; 430 wilc_wlan_set_bssid(dev, NULL, WILC_STATION_MODE); 431 wfi_drv->conn_info.conn_result = NULL; 432 kfree(join_params); 433 goto out_put_bss; 434 } 435 kfree(join_params); 436 vif->bss = bss; 437 cfg80211_put_bss(wiphy, bss); 438 return 0; 439 440 out_put_bss: 441 cfg80211_put_bss(wiphy, bss); 442 443 out_error: 444 vif->connecting = false; 445 return ret; 446 } 447 448 static int disconnect(struct wiphy *wiphy, struct net_device *dev, 449 u16 reason_code) 450 { 451 struct wilc_vif *vif = netdev_priv(dev); 452 struct wilc_priv *priv = &vif->priv; 453 struct wilc *wilc = vif->wilc; 454 int ret; 455 456 vif->connecting = false; 457 458 if (!wilc) 459 return -EIO; 460 461 if (wilc->close) { 462 /* already disconnected done */ 463 cfg80211_disconnected(dev, 0, NULL, 0, true, GFP_KERNEL); 464 return 0; 465 } 466 467 if (vif->iftype != WILC_CLIENT_MODE) 468 wilc->sta_ch = WILC_INVALID_CHANNEL; 469 wilc_wlan_set_bssid(priv->dev, NULL, WILC_STATION_MODE); 470 471 priv->hif_drv->p2p_timeout = 0; 472 473 ret = wilc_disconnect(vif); 474 if (ret != 0) { 475 netdev_err(priv->dev, "Error in disconnecting\n"); 476 ret = -EINVAL; 477 } 478 479 vif->bss = NULL; 480 481 return ret; 482 } 483 484 static int wilc_wfi_cfg_allocate_wpa_entry(struct wilc_priv *priv, u8 idx) 485 { 486 if (!priv->wilc_gtk[idx]) { 487 priv->wilc_gtk[idx] = kzalloc(sizeof(*priv->wilc_gtk[idx]), 488 GFP_KERNEL); 489 if (!priv->wilc_gtk[idx]) 490 return -ENOMEM; 491 } 492 493 if (!priv->wilc_ptk[idx]) { 494 priv->wilc_ptk[idx] = kzalloc(sizeof(*priv->wilc_ptk[idx]), 495 GFP_KERNEL); 496 if (!priv->wilc_ptk[idx]) 497 return -ENOMEM; 498 } 499 500 return 0; 501 } 502 503 static int wilc_wfi_cfg_allocate_wpa_igtk_entry(struct wilc_priv *priv, u8 idx) 504 { 505 idx -= 4; 506 if (!priv->wilc_igtk[idx]) { 507 priv->wilc_igtk[idx] = kzalloc(sizeof(*priv->wilc_igtk[idx]), 508 GFP_KERNEL); 509 if (!priv->wilc_igtk[idx]) 510 return -ENOMEM; 511 } 512 return 0; 513 } 514 515 static int wilc_wfi_cfg_copy_wpa_info(struct wilc_wfi_key *key_info, 516 struct key_params *params) 517 { 518 kfree(key_info->key); 519 520 key_info->key = kmemdup(params->key, params->key_len, GFP_KERNEL); 521 if (!key_info->key) 522 return -ENOMEM; 523 524 kfree(key_info->seq); 525 526 if (params->seq_len > 0) { 527 key_info->seq = kmemdup(params->seq, params->seq_len, 528 GFP_KERNEL); 529 if (!key_info->seq) 530 return -ENOMEM; 531 } 532 533 key_info->cipher = params->cipher; 534 key_info->key_len = params->key_len; 535 key_info->seq_len = params->seq_len; 536 537 return 0; 538 } 539 540 static int add_key(struct wiphy *wiphy, struct net_device *netdev, int link_id, 541 u8 key_index, bool pairwise, const u8 *mac_addr, 542 struct key_params *params) 543 544 { 545 int ret = 0, keylen = params->key_len; 546 const u8 *rx_mic = NULL; 547 const u8 *tx_mic = NULL; 548 u8 mode = WILC_FW_SEC_NO; 549 u8 op_mode; 550 struct wilc_vif *vif = netdev_priv(netdev); 551 struct wilc_priv *priv = &vif->priv; 552 struct wilc_wfi_key *key; 553 554 switch (params->cipher) { 555 case WLAN_CIPHER_SUITE_TKIP: 556 case WLAN_CIPHER_SUITE_CCMP: 557 if (priv->wdev.iftype == NL80211_IFTYPE_AP || 558 priv->wdev.iftype == NL80211_IFTYPE_P2P_GO) { 559 struct wilc_wfi_key *key; 560 561 ret = wilc_wfi_cfg_allocate_wpa_entry(priv, key_index); 562 if (ret) 563 return -ENOMEM; 564 565 if (params->key_len > 16 && 566 params->cipher == WLAN_CIPHER_SUITE_TKIP) { 567 tx_mic = params->key + 24; 568 rx_mic = params->key + 16; 569 keylen = params->key_len - 16; 570 } 571 572 if (!pairwise) { 573 if (params->cipher == WLAN_CIPHER_SUITE_TKIP) 574 mode = WILC_FW_SEC_WPA_TKIP; 575 else 576 mode = WILC_FW_SEC_WPA2_AES; 577 578 priv->wilc_groupkey = mode; 579 580 key = priv->wilc_gtk[key_index]; 581 } else { 582 if (params->cipher == WLAN_CIPHER_SUITE_TKIP) 583 mode = WILC_FW_SEC_WPA_TKIP; 584 else 585 mode = priv->wilc_groupkey | WILC_FW_AES; 586 587 key = priv->wilc_ptk[key_index]; 588 } 589 ret = wilc_wfi_cfg_copy_wpa_info(key, params); 590 if (ret) 591 return -ENOMEM; 592 593 op_mode = WILC_AP_MODE; 594 } else { 595 if (params->key_len > 16 && 596 params->cipher == WLAN_CIPHER_SUITE_TKIP) { 597 rx_mic = params->key + 24; 598 tx_mic = params->key + 16; 599 keylen = params->key_len - 16; 600 } 601 602 op_mode = WILC_STATION_MODE; 603 } 604 605 if (!pairwise) 606 ret = wilc_add_rx_gtk(vif, params->key, keylen, 607 key_index, params->seq_len, 608 params->seq, rx_mic, tx_mic, 609 op_mode, mode); 610 else 611 ret = wilc_add_ptk(vif, params->key, keylen, mac_addr, 612 rx_mic, tx_mic, op_mode, mode, 613 key_index); 614 615 break; 616 case WLAN_CIPHER_SUITE_AES_CMAC: 617 ret = wilc_wfi_cfg_allocate_wpa_igtk_entry(priv, key_index); 618 if (ret) 619 return -ENOMEM; 620 621 key = priv->wilc_igtk[key_index - 4]; 622 ret = wilc_wfi_cfg_copy_wpa_info(key, params); 623 if (ret) 624 return -ENOMEM; 625 626 if (priv->wdev.iftype == NL80211_IFTYPE_AP || 627 priv->wdev.iftype == NL80211_IFTYPE_P2P_GO) 628 op_mode = WILC_AP_MODE; 629 else 630 op_mode = WILC_STATION_MODE; 631 632 ret = wilc_add_igtk(vif, params->key, keylen, params->seq, 633 params->seq_len, mac_addr, op_mode, 634 key_index); 635 break; 636 637 default: 638 netdev_err(netdev, "%s: Unsupported cipher\n", __func__); 639 ret = -ENOTSUPP; 640 } 641 642 return ret; 643 } 644 645 static int del_key(struct wiphy *wiphy, struct net_device *netdev, int link_id, 646 u8 key_index, 647 bool pairwise, 648 const u8 *mac_addr) 649 { 650 struct wilc_vif *vif = netdev_priv(netdev); 651 struct wilc_priv *priv = &vif->priv; 652 653 if (!pairwise && (key_index == 4 || key_index == 5)) { 654 key_index -= 4; 655 if (priv->wilc_igtk[key_index]) { 656 kfree(priv->wilc_igtk[key_index]->key); 657 priv->wilc_igtk[key_index]->key = NULL; 658 kfree(priv->wilc_igtk[key_index]->seq); 659 priv->wilc_igtk[key_index]->seq = NULL; 660 kfree(priv->wilc_igtk[key_index]); 661 priv->wilc_igtk[key_index] = NULL; 662 } 663 } else { 664 if (priv->wilc_gtk[key_index]) { 665 kfree(priv->wilc_gtk[key_index]->key); 666 priv->wilc_gtk[key_index]->key = NULL; 667 kfree(priv->wilc_gtk[key_index]->seq); 668 priv->wilc_gtk[key_index]->seq = NULL; 669 670 kfree(priv->wilc_gtk[key_index]); 671 priv->wilc_gtk[key_index] = NULL; 672 } 673 if (priv->wilc_ptk[key_index]) { 674 kfree(priv->wilc_ptk[key_index]->key); 675 priv->wilc_ptk[key_index]->key = NULL; 676 kfree(priv->wilc_ptk[key_index]->seq); 677 priv->wilc_ptk[key_index]->seq = NULL; 678 kfree(priv->wilc_ptk[key_index]); 679 priv->wilc_ptk[key_index] = NULL; 680 } 681 } 682 683 return 0; 684 } 685 686 static int get_key(struct wiphy *wiphy, struct net_device *netdev, int link_id, 687 u8 key_index, bool pairwise, const u8 *mac_addr, 688 void *cookie, 689 void (*callback)(void *cookie, struct key_params *)) 690 { 691 struct wilc_vif *vif = netdev_priv(netdev); 692 struct wilc_priv *priv = &vif->priv; 693 struct key_params key_params; 694 695 if (!pairwise) { 696 if (key_index == 4 || key_index == 5) { 697 key_index -= 4; 698 key_params.key = priv->wilc_igtk[key_index]->key; 699 key_params.cipher = priv->wilc_igtk[key_index]->cipher; 700 key_params.key_len = priv->wilc_igtk[key_index]->key_len; 701 key_params.seq = priv->wilc_igtk[key_index]->seq; 702 key_params.seq_len = priv->wilc_igtk[key_index]->seq_len; 703 } else { 704 key_params.key = priv->wilc_gtk[key_index]->key; 705 key_params.cipher = priv->wilc_gtk[key_index]->cipher; 706 key_params.key_len = priv->wilc_gtk[key_index]->key_len; 707 key_params.seq = priv->wilc_gtk[key_index]->seq; 708 key_params.seq_len = priv->wilc_gtk[key_index]->seq_len; 709 } 710 } else { 711 key_params.key = priv->wilc_ptk[key_index]->key; 712 key_params.cipher = priv->wilc_ptk[key_index]->cipher; 713 key_params.key_len = priv->wilc_ptk[key_index]->key_len; 714 key_params.seq = priv->wilc_ptk[key_index]->seq; 715 key_params.seq_len = priv->wilc_ptk[key_index]->seq_len; 716 } 717 718 callback(cookie, &key_params); 719 720 return 0; 721 } 722 723 /* wiphy_new_nm() will WARNON if not present */ 724 static int set_default_key(struct wiphy *wiphy, struct net_device *netdev, 725 int link_id, u8 key_index, bool unicast, 726 bool multicast) 727 { 728 return 0; 729 } 730 731 static int set_default_mgmt_key(struct wiphy *wiphy, struct net_device *netdev, 732 int link_id, u8 key_index) 733 { 734 struct wilc_vif *vif = netdev_priv(netdev); 735 736 return wilc_set_default_mgmt_key_index(vif, key_index); 737 } 738 739 static int get_station(struct wiphy *wiphy, struct net_device *dev, 740 const u8 *mac, struct station_info *sinfo) 741 { 742 struct wilc_vif *vif = netdev_priv(dev); 743 struct wilc_priv *priv = &vif->priv; 744 struct wilc *wilc = vif->wilc; 745 u32 i = 0; 746 u32 associatedsta = ~0; 747 u32 inactive_time = 0; 748 749 if (vif->iftype == WILC_AP_MODE || vif->iftype == WILC_GO_MODE) { 750 for (i = 0; i < NUM_STA_ASSOCIATED; i++) { 751 if (!(memcmp(mac, 752 priv->assoc_stainfo.sta_associated_bss[i], 753 ETH_ALEN))) { 754 associatedsta = i; 755 break; 756 } 757 } 758 759 if (associatedsta == ~0) { 760 netdev_err(dev, "sta required is not associated\n"); 761 return -ENOENT; 762 } 763 764 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME); 765 766 wilc_get_inactive_time(vif, mac, &inactive_time); 767 sinfo->inactive_time = 1000 * inactive_time; 768 } else if (vif->iftype == WILC_STATION_MODE) { 769 struct rf_info stats; 770 771 if (!wilc->initialized) 772 return -EBUSY; 773 774 wilc_get_statistics(vif, &stats); 775 776 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL) | 777 BIT_ULL(NL80211_STA_INFO_RX_PACKETS) | 778 BIT_ULL(NL80211_STA_INFO_TX_PACKETS) | 779 BIT_ULL(NL80211_STA_INFO_TX_FAILED) | 780 BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 781 782 sinfo->signal = stats.rssi; 783 sinfo->rx_packets = stats.rx_cnt; 784 sinfo->tx_packets = stats.tx_cnt + stats.tx_fail_cnt; 785 sinfo->tx_failed = stats.tx_fail_cnt; 786 sinfo->txrate.legacy = stats.link_speed * 10; 787 788 if (stats.link_speed > TCP_ACK_FILTER_LINK_SPEED_THRESH && 789 stats.link_speed != DEFAULT_LINK_SPEED) 790 wilc_enable_tcp_ack_filter(vif, true); 791 else if (stats.link_speed != DEFAULT_LINK_SPEED) 792 wilc_enable_tcp_ack_filter(vif, false); 793 } 794 return 0; 795 } 796 797 static int set_wiphy_params(struct wiphy *wiphy, int radio_idx, u32 changed) 798 { 799 int ret = -EINVAL; 800 struct cfg_param_attr cfg_param_val; 801 struct wilc *wl = wiphy_priv(wiphy); 802 struct wilc_vif *vif; 803 struct wilc_priv *priv; 804 int srcu_idx; 805 806 srcu_idx = srcu_read_lock(&wl->srcu); 807 vif = wilc_get_wl_to_vif(wl); 808 if (IS_ERR(vif)) 809 goto out; 810 811 priv = &vif->priv; 812 cfg_param_val.flag = 0; 813 814 if (changed & WIPHY_PARAM_RETRY_SHORT) { 815 netdev_dbg(vif->ndev, 816 "Setting WIPHY_PARAM_RETRY_SHORT %d\n", 817 wiphy->retry_short); 818 cfg_param_val.flag |= WILC_CFG_PARAM_RETRY_SHORT; 819 cfg_param_val.short_retry_limit = wiphy->retry_short; 820 } 821 if (changed & WIPHY_PARAM_RETRY_LONG) { 822 netdev_dbg(vif->ndev, 823 "Setting WIPHY_PARAM_RETRY_LONG %d\n", 824 wiphy->retry_long); 825 cfg_param_val.flag |= WILC_CFG_PARAM_RETRY_LONG; 826 cfg_param_val.long_retry_limit = wiphy->retry_long; 827 } 828 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 829 if (wiphy->frag_threshold > 255 && 830 wiphy->frag_threshold < 7937) { 831 netdev_dbg(vif->ndev, 832 "Setting WIPHY_PARAM_FRAG_THRESHOLD %d\n", 833 wiphy->frag_threshold); 834 cfg_param_val.flag |= WILC_CFG_PARAM_FRAG_THRESHOLD; 835 cfg_param_val.frag_threshold = wiphy->frag_threshold; 836 } else { 837 netdev_err(vif->ndev, 838 "Fragmentation threshold out of range\n"); 839 goto out; 840 } 841 } 842 843 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 844 if (wiphy->rts_threshold > 255) { 845 netdev_dbg(vif->ndev, 846 "Setting WIPHY_PARAM_RTS_THRESHOLD %d\n", 847 wiphy->rts_threshold); 848 cfg_param_val.flag |= WILC_CFG_PARAM_RTS_THRESHOLD; 849 cfg_param_val.rts_threshold = wiphy->rts_threshold; 850 } else { 851 netdev_err(vif->ndev, "RTS threshold out of range\n"); 852 goto out; 853 } 854 } 855 856 ret = wilc_hif_set_cfg(vif, &cfg_param_val); 857 if (ret) 858 netdev_err(priv->dev, "Error in setting WIPHY PARAMS\n"); 859 860 out: 861 srcu_read_unlock(&wl->srcu, srcu_idx); 862 return ret; 863 } 864 865 static int set_pmksa(struct wiphy *wiphy, struct net_device *netdev, 866 struct cfg80211_pmksa *pmksa) 867 { 868 struct wilc_vif *vif = netdev_priv(netdev); 869 struct wilc_priv *priv = &vif->priv; 870 u32 i; 871 int ret = 0; 872 u8 flag = 0; 873 874 for (i = 0; i < priv->pmkid_list.numpmkid; i++) { 875 if (!memcmp(pmksa->bssid, priv->pmkid_list.pmkidlist[i].bssid, 876 ETH_ALEN)) { 877 flag = PMKID_FOUND; 878 break; 879 } 880 } 881 if (i < WILC_MAX_NUM_PMKIDS) { 882 memcpy(priv->pmkid_list.pmkidlist[i].bssid, pmksa->bssid, 883 ETH_ALEN); 884 memcpy(priv->pmkid_list.pmkidlist[i].pmkid, pmksa->pmkid, 885 WLAN_PMKID_LEN); 886 if (!(flag == PMKID_FOUND)) 887 priv->pmkid_list.numpmkid++; 888 } else { 889 netdev_err(netdev, "Invalid PMKID index\n"); 890 ret = -EINVAL; 891 } 892 893 if (!ret) 894 ret = wilc_set_pmkid_info(vif, &priv->pmkid_list); 895 896 return ret; 897 } 898 899 static int del_pmksa(struct wiphy *wiphy, struct net_device *netdev, 900 struct cfg80211_pmksa *pmksa) 901 { 902 u32 i; 903 struct wilc_vif *vif = netdev_priv(netdev); 904 struct wilc_priv *priv = &vif->priv; 905 906 for (i = 0; i < priv->pmkid_list.numpmkid; i++) { 907 if (!memcmp(pmksa->bssid, priv->pmkid_list.pmkidlist[i].bssid, 908 ETH_ALEN)) { 909 memset(&priv->pmkid_list.pmkidlist[i], 0, 910 sizeof(struct wilc_pmkid)); 911 break; 912 } 913 } 914 915 if (i == priv->pmkid_list.numpmkid) 916 return -EINVAL; 917 918 for (; i < (priv->pmkid_list.numpmkid - 1); i++) { 919 memcpy(priv->pmkid_list.pmkidlist[i].bssid, 920 priv->pmkid_list.pmkidlist[i + 1].bssid, 921 ETH_ALEN); 922 memcpy(priv->pmkid_list.pmkidlist[i].pmkid, 923 priv->pmkid_list.pmkidlist[i + 1].pmkid, 924 WLAN_PMKID_LEN); 925 } 926 priv->pmkid_list.numpmkid--; 927 928 return 0; 929 } 930 931 static int flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) 932 { 933 struct wilc_vif *vif = netdev_priv(netdev); 934 935 memset(&vif->priv.pmkid_list, 0, sizeof(struct wilc_pmkid_attr)); 936 937 return 0; 938 } 939 940 static inline void wilc_wfi_cfg_parse_ch_attr(u8 *buf, u32 len, u8 sta_ch) 941 { 942 struct wilc_attr_entry *e; 943 struct wilc_attr_ch_list *ch_list; 944 struct wilc_attr_oper_ch *op_ch; 945 u32 index = 0; 946 u8 ch_list_idx = 0; 947 u8 op_ch_idx = 0; 948 949 if (sta_ch == WILC_INVALID_CHANNEL) 950 return; 951 952 while (index + sizeof(*e) <= len) { 953 u16 attr_size; 954 955 e = (struct wilc_attr_entry *)&buf[index]; 956 attr_size = le16_to_cpu(e->attr_len); 957 958 if (index + sizeof(*e) + attr_size > len) 959 return; 960 961 if (e->attr_type == IEEE80211_P2P_ATTR_CHANNEL_LIST && 962 attr_size >= (sizeof(struct wilc_attr_ch_list) - sizeof(*e))) 963 ch_list_idx = index; 964 else if (e->attr_type == IEEE80211_P2P_ATTR_OPER_CHANNEL && 965 attr_size == (sizeof(struct wilc_attr_oper_ch) - sizeof(*e))) 966 op_ch_idx = index; 967 968 if (ch_list_idx && op_ch_idx) 969 break; 970 971 index += sizeof(*e) + attr_size; 972 } 973 974 if (ch_list_idx) { 975 u16 elem_size; 976 977 ch_list = (struct wilc_attr_ch_list *)&buf[ch_list_idx]; 978 /* the number of bytes following the final 'elem' member */ 979 elem_size = le16_to_cpu(ch_list->attr_len) - 980 (sizeof(*ch_list) - sizeof(struct wilc_attr_entry)); 981 for (unsigned int i = 0; i < elem_size;) { 982 struct wilc_ch_list_elem *e; 983 984 e = (struct wilc_ch_list_elem *)(ch_list->elem + i); 985 986 i += sizeof(*e); 987 if (i > elem_size) 988 break; 989 990 i += e->no_of_channels; 991 if (i > elem_size) 992 break; 993 994 if (e->op_class == WILC_WLAN_OPERATING_CLASS_2_4GHZ) { 995 memset(e->ch_list, sta_ch, e->no_of_channels); 996 break; 997 } 998 } 999 } 1000 1001 if (op_ch_idx) { 1002 op_ch = (struct wilc_attr_oper_ch *)&buf[op_ch_idx]; 1003 op_ch->op_class = WILC_WLAN_OPERATING_CLASS_2_4GHZ; 1004 op_ch->op_channel = sta_ch; 1005 } 1006 } 1007 1008 bool wilc_wfi_mgmt_frame_rx(struct wilc_vif *vif, u8 *buff, u32 size) 1009 { 1010 struct wilc *wl = vif->wilc; 1011 struct wilc_priv *priv = &vif->priv; 1012 int freq; 1013 1014 freq = ieee80211_channel_to_frequency(wl->op_ch, NL80211_BAND_2GHZ); 1015 1016 return cfg80211_rx_mgmt(&priv->wdev, freq, 0, buff, size, 0); 1017 } 1018 1019 void wilc_wfi_p2p_rx(struct wilc_vif *vif, u8 *buff, u32 size) 1020 { 1021 struct wilc *wl = vif->wilc; 1022 struct wilc_priv *priv = &vif->priv; 1023 struct host_if_drv *wfi_drv = priv->hif_drv; 1024 struct ieee80211_mgmt *mgmt; 1025 struct wilc_vendor_specific_ie *p; 1026 struct wilc_p2p_pub_act_frame *d; 1027 int ie_offset = offsetof(struct ieee80211_mgmt, u) + sizeof(*d); 1028 const u8 *vendor_ie; 1029 u32 header, pkt_offset; 1030 s32 freq; 1031 1032 header = get_unaligned_le32(buff - HOST_HDR_OFFSET); 1033 pkt_offset = FIELD_GET(WILC_PKT_HDR_OFFSET_FIELD, header); 1034 1035 if (pkt_offset & IS_MANAGMEMENT_CALLBACK) { 1036 bool ack = false; 1037 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)buff; 1038 1039 if (ieee80211_is_probe_resp(hdr->frame_control) || 1040 pkt_offset & IS_MGMT_STATUS_SUCCES) 1041 ack = true; 1042 1043 cfg80211_mgmt_tx_status(&priv->wdev, priv->tx_cookie, buff, 1044 size, ack, GFP_KERNEL); 1045 return; 1046 } 1047 1048 freq = ieee80211_channel_to_frequency(wl->op_ch, NL80211_BAND_2GHZ); 1049 1050 mgmt = (struct ieee80211_mgmt *)buff; 1051 if (!ieee80211_is_action(mgmt->frame_control)) 1052 goto out_rx_mgmt; 1053 1054 if (priv->cfg_scanning && 1055 time_after_eq(jiffies, (unsigned long)wfi_drv->p2p_timeout)) { 1056 netdev_dbg(vif->ndev, "Receiving action wrong ch\n"); 1057 return; 1058 } 1059 1060 if (!ieee80211_is_public_action((struct ieee80211_hdr *)buff, size)) 1061 goto out_rx_mgmt; 1062 1063 d = (struct wilc_p2p_pub_act_frame *)(&mgmt->u.action); 1064 if (d->oui_subtype != GO_NEG_REQ && d->oui_subtype != GO_NEG_RSP && 1065 d->oui_subtype != P2P_INV_REQ && d->oui_subtype != P2P_INV_RSP) 1066 goto out_rx_mgmt; 1067 1068 vendor_ie = cfg80211_find_vendor_ie(WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P, 1069 buff + ie_offset, size - ie_offset); 1070 if (!vendor_ie) 1071 goto out_rx_mgmt; 1072 1073 p = (struct wilc_vendor_specific_ie *)vendor_ie; 1074 wilc_wfi_cfg_parse_ch_attr(p->attr, p->tag_len - 4, vif->wilc->sta_ch); 1075 1076 out_rx_mgmt: 1077 cfg80211_rx_mgmt(&priv->wdev, freq, 0, buff, size, 0); 1078 } 1079 1080 static void wilc_wfi_mgmt_tx_complete(void *priv, int status) 1081 { 1082 struct wilc_p2p_mgmt_data *pv_data = priv; 1083 1084 kfree(pv_data->buff); 1085 kfree(pv_data); 1086 } 1087 1088 static void wilc_wfi_remain_on_channel_expired(struct wilc_vif *vif, u64 cookie) 1089 { 1090 struct wilc_priv *priv = &vif->priv; 1091 struct wilc_wfi_p2p_listen_params *params = &priv->remain_on_ch_params; 1092 1093 if (cookie != params->listen_cookie) 1094 return; 1095 1096 priv->p2p_listen_state = false; 1097 1098 cfg80211_remain_on_channel_expired(&priv->wdev, params->listen_cookie, 1099 params->listen_ch, GFP_KERNEL); 1100 } 1101 1102 static int remain_on_channel(struct wiphy *wiphy, 1103 struct wireless_dev *wdev, 1104 struct ieee80211_channel *chan, 1105 unsigned int duration, u64 *cookie) 1106 { 1107 int ret = 0; 1108 struct wilc_vif *vif = netdev_priv(wdev->netdev); 1109 struct wilc_priv *priv = &vif->priv; 1110 u64 id; 1111 1112 if (wdev->iftype == NL80211_IFTYPE_AP) { 1113 netdev_dbg(vif->ndev, "Required while in AP mode\n"); 1114 return ret; 1115 } 1116 1117 id = ++priv->inc_roc_cookie; 1118 if (id == 0) 1119 id = ++priv->inc_roc_cookie; 1120 1121 ret = wilc_remain_on_channel(vif, id, chan->hw_value, 1122 wilc_wfi_remain_on_channel_expired); 1123 if (ret) 1124 return ret; 1125 1126 vif->wilc->op_ch = chan->hw_value; 1127 1128 priv->remain_on_ch_params.listen_ch = chan; 1129 priv->remain_on_ch_params.listen_cookie = id; 1130 *cookie = id; 1131 priv->p2p_listen_state = true; 1132 priv->remain_on_ch_params.listen_duration = duration; 1133 1134 cfg80211_ready_on_channel(wdev, *cookie, chan, duration, GFP_KERNEL); 1135 mod_timer(&vif->hif_drv->remain_on_ch_timer, 1136 jiffies + msecs_to_jiffies(duration + 1000)); 1137 1138 return ret; 1139 } 1140 1141 static int cancel_remain_on_channel(struct wiphy *wiphy, 1142 struct wireless_dev *wdev, 1143 u64 cookie) 1144 { 1145 struct wilc_vif *vif = netdev_priv(wdev->netdev); 1146 struct wilc_priv *priv = &vif->priv; 1147 1148 if (cookie != priv->remain_on_ch_params.listen_cookie) 1149 return -ENOENT; 1150 1151 return wilc_listen_state_expired(vif, cookie); 1152 } 1153 1154 static int mgmt_tx(struct wiphy *wiphy, 1155 struct wireless_dev *wdev, 1156 struct cfg80211_mgmt_tx_params *params, 1157 u64 *cookie) 1158 { 1159 struct ieee80211_channel *chan = params->chan; 1160 unsigned int wait = params->wait; 1161 const u8 *buf = params->buf; 1162 size_t len = params->len; 1163 const struct ieee80211_mgmt *mgmt; 1164 struct wilc_p2p_mgmt_data *mgmt_tx; 1165 struct wilc_vif *vif = netdev_priv(wdev->netdev); 1166 struct wilc_priv *priv = &vif->priv; 1167 struct host_if_drv *wfi_drv = priv->hif_drv; 1168 struct wilc_vendor_specific_ie *p; 1169 struct wilc_p2p_pub_act_frame *d; 1170 int ie_offset = offsetof(struct ieee80211_mgmt, u) + sizeof(*d); 1171 const u8 *vendor_ie; 1172 int ret = 0; 1173 1174 *cookie = get_random_u32(); 1175 priv->tx_cookie = *cookie; 1176 mgmt = (const struct ieee80211_mgmt *)buf; 1177 1178 if (!ieee80211_is_mgmt(mgmt->frame_control)) 1179 goto out; 1180 1181 mgmt_tx = kmalloc(sizeof(*mgmt_tx), GFP_KERNEL); 1182 if (!mgmt_tx) { 1183 ret = -ENOMEM; 1184 goto out; 1185 } 1186 1187 mgmt_tx->buff = kmemdup(buf, len, GFP_KERNEL); 1188 if (!mgmt_tx->buff) { 1189 ret = -ENOMEM; 1190 kfree(mgmt_tx); 1191 goto out; 1192 } 1193 1194 mgmt_tx->size = len; 1195 1196 if (ieee80211_is_probe_resp(mgmt->frame_control)) { 1197 wilc_set_mac_chnl_num(vif, chan->hw_value); 1198 vif->wilc->op_ch = chan->hw_value; 1199 goto out_txq_add_pkt; 1200 } 1201 1202 if (!ieee80211_is_public_action((struct ieee80211_hdr *)buf, len)) { 1203 if (chan) 1204 wilc_set_mac_chnl_num(vif, chan->hw_value); 1205 else 1206 wilc_set_mac_chnl_num(vif, vif->wilc->op_ch); 1207 1208 goto out_set_timeout; 1209 } 1210 1211 d = (struct wilc_p2p_pub_act_frame *)(&mgmt->u.action); 1212 if (d->oui_type != WLAN_OUI_TYPE_WFA_P2P || 1213 d->oui_subtype != GO_NEG_CONF) { 1214 wilc_set_mac_chnl_num(vif, chan->hw_value); 1215 vif->wilc->op_ch = chan->hw_value; 1216 } 1217 1218 if (d->oui_subtype != P2P_INV_REQ && d->oui_subtype != P2P_INV_RSP) 1219 goto out_set_timeout; 1220 1221 vendor_ie = cfg80211_find_vendor_ie(WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P, 1222 mgmt_tx->buff + ie_offset, 1223 len - ie_offset); 1224 if (!vendor_ie) 1225 goto out_set_timeout; 1226 1227 p = (struct wilc_vendor_specific_ie *)vendor_ie; 1228 wilc_wfi_cfg_parse_ch_attr(p->attr, p->tag_len - 4, vif->wilc->sta_ch); 1229 1230 out_set_timeout: 1231 wfi_drv->p2p_timeout = (jiffies + msecs_to_jiffies(wait)); 1232 1233 out_txq_add_pkt: 1234 1235 wilc_wlan_txq_add_mgmt_pkt(wdev->netdev, mgmt_tx, 1236 mgmt_tx->buff, mgmt_tx->size, 1237 wilc_wfi_mgmt_tx_complete); 1238 1239 out: 1240 1241 return ret; 1242 } 1243 1244 static int mgmt_tx_cancel_wait(struct wiphy *wiphy, 1245 struct wireless_dev *wdev, 1246 u64 cookie) 1247 { 1248 struct wilc_vif *vif = netdev_priv(wdev->netdev); 1249 struct wilc_priv *priv = &vif->priv; 1250 struct host_if_drv *wfi_drv = priv->hif_drv; 1251 1252 wfi_drv->p2p_timeout = jiffies; 1253 1254 if (!priv->p2p_listen_state) { 1255 struct wilc_wfi_p2p_listen_params *params; 1256 1257 params = &priv->remain_on_ch_params; 1258 1259 cfg80211_remain_on_channel_expired(wdev, 1260 params->listen_cookie, 1261 params->listen_ch, 1262 GFP_KERNEL); 1263 } 1264 1265 return 0; 1266 } 1267 1268 void wilc_update_mgmt_frame_registrations(struct wiphy *wiphy, 1269 struct wireless_dev *wdev, 1270 struct mgmt_frame_regs *upd) 1271 { 1272 struct wilc *wl = wiphy_priv(wiphy); 1273 struct wilc_vif *vif = netdev_priv(wdev->netdev); 1274 u32 presp_bit = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 1275 u32 action_bit = BIT(IEEE80211_STYPE_ACTION >> 4); 1276 u32 pauth_bit = BIT(IEEE80211_STYPE_AUTH >> 4); 1277 1278 if (wl->initialized) { 1279 bool prev = vif->mgmt_reg_stypes & presp_bit; 1280 bool now = upd->interface_stypes & presp_bit; 1281 1282 if (now != prev) 1283 wilc_frame_register(vif, IEEE80211_STYPE_PROBE_REQ, now); 1284 1285 prev = vif->mgmt_reg_stypes & action_bit; 1286 now = upd->interface_stypes & action_bit; 1287 1288 if (now != prev) 1289 wilc_frame_register(vif, IEEE80211_STYPE_ACTION, now); 1290 1291 prev = vif->mgmt_reg_stypes & pauth_bit; 1292 now = upd->interface_stypes & pauth_bit; 1293 if (now != prev) 1294 wilc_frame_register(vif, IEEE80211_STYPE_AUTH, now); 1295 } 1296 1297 vif->mgmt_reg_stypes = 1298 upd->interface_stypes & (presp_bit | action_bit | pauth_bit); 1299 } 1300 1301 static int external_auth(struct wiphy *wiphy, struct net_device *dev, 1302 struct cfg80211_external_auth_params *auth) 1303 { 1304 struct wilc_vif *vif = netdev_priv(dev); 1305 1306 if (auth->status == WLAN_STATUS_SUCCESS) 1307 wilc_set_external_auth_param(vif, auth); 1308 1309 return 0; 1310 } 1311 1312 static int set_cqm_rssi_config(struct wiphy *wiphy, struct net_device *dev, 1313 s32 rssi_thold, u32 rssi_hyst) 1314 { 1315 return 0; 1316 } 1317 1318 static int dump_station(struct wiphy *wiphy, struct net_device *dev, 1319 int idx, u8 *mac, struct station_info *sinfo) 1320 { 1321 struct wilc_vif *vif = netdev_priv(dev); 1322 int ret; 1323 1324 if (idx != 0) 1325 return -ENOENT; 1326 1327 ret = wilc_get_rssi(vif, &sinfo->signal); 1328 if (ret) 1329 return ret; 1330 1331 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL); 1332 memcpy(mac, vif->priv.associated_bss, ETH_ALEN); 1333 return 0; 1334 } 1335 1336 static int set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 1337 bool enabled, int timeout) 1338 { 1339 struct wilc_vif *vif = netdev_priv(dev); 1340 struct wilc_priv *priv = &vif->priv; 1341 1342 if (!priv->hif_drv) 1343 return -EIO; 1344 1345 wilc_set_power_mgmt(vif, enabled, timeout); 1346 1347 return 0; 1348 } 1349 1350 static int change_virtual_intf(struct wiphy *wiphy, struct net_device *dev, 1351 enum nl80211_iftype type, 1352 struct vif_params *params) 1353 { 1354 struct wilc *wl = wiphy_priv(wiphy); 1355 struct wilc_vif *vif = netdev_priv(dev); 1356 struct wilc_priv *priv = &vif->priv; 1357 1358 switch (type) { 1359 case NL80211_IFTYPE_STATION: 1360 vif->connecting = false; 1361 dev->ieee80211_ptr->iftype = type; 1362 priv->wdev.iftype = type; 1363 vif->monitor_flag = 0; 1364 if (vif->iftype == WILC_AP_MODE || vif->iftype == WILC_GO_MODE) 1365 wilc_wfi_deinit_mon_interface(wl, true); 1366 vif->iftype = WILC_STATION_MODE; 1367 1368 if (wl->initialized) 1369 wilc_set_operation_mode(vif, wilc_get_vif_idx(vif), 1370 WILC_STATION_MODE, vif->idx); 1371 1372 memset(priv->assoc_stainfo.sta_associated_bss, 0, 1373 WILC_MAX_NUM_STA * ETH_ALEN); 1374 break; 1375 1376 case NL80211_IFTYPE_P2P_CLIENT: 1377 vif->connecting = false; 1378 dev->ieee80211_ptr->iftype = type; 1379 priv->wdev.iftype = type; 1380 vif->monitor_flag = 0; 1381 vif->iftype = WILC_CLIENT_MODE; 1382 1383 if (wl->initialized) 1384 wilc_set_operation_mode(vif, wilc_get_vif_idx(vif), 1385 WILC_STATION_MODE, vif->idx); 1386 break; 1387 1388 case NL80211_IFTYPE_AP: 1389 dev->ieee80211_ptr->iftype = type; 1390 priv->wdev.iftype = type; 1391 vif->iftype = WILC_AP_MODE; 1392 1393 if (wl->initialized) 1394 wilc_set_operation_mode(vif, wilc_get_vif_idx(vif), 1395 WILC_AP_MODE, vif->idx); 1396 break; 1397 1398 case NL80211_IFTYPE_P2P_GO: 1399 dev->ieee80211_ptr->iftype = type; 1400 priv->wdev.iftype = type; 1401 vif->iftype = WILC_GO_MODE; 1402 1403 if (wl->initialized) 1404 wilc_set_operation_mode(vif, wilc_get_vif_idx(vif), 1405 WILC_AP_MODE, vif->idx); 1406 break; 1407 1408 default: 1409 netdev_err(dev, "Unknown interface type= %d\n", type); 1410 return -EINVAL; 1411 } 1412 1413 return 0; 1414 } 1415 1416 static int start_ap(struct wiphy *wiphy, struct net_device *dev, 1417 struct cfg80211_ap_settings *settings) 1418 { 1419 struct wilc_vif *vif = netdev_priv(dev); 1420 int ret; 1421 1422 ret = set_channel(wiphy, dev, &settings->chandef); 1423 if (ret != 0) 1424 netdev_err(dev, "Error in setting channel\n"); 1425 1426 wilc_wlan_set_bssid(dev, dev->dev_addr, WILC_AP_MODE); 1427 1428 return wilc_add_beacon(vif, settings->beacon_interval, 1429 settings->dtim_period, &settings->beacon); 1430 } 1431 1432 static int change_beacon(struct wiphy *wiphy, struct net_device *dev, 1433 struct cfg80211_ap_update *params) 1434 { 1435 struct wilc_vif *vif = netdev_priv(dev); 1436 1437 return wilc_add_beacon(vif, 0, 0, ¶ms->beacon); 1438 } 1439 1440 static int stop_ap(struct wiphy *wiphy, struct net_device *dev, 1441 unsigned int link_id) 1442 { 1443 int ret; 1444 struct wilc_vif *vif = netdev_priv(dev); 1445 1446 wilc_wlan_set_bssid(dev, NULL, WILC_AP_MODE); 1447 1448 ret = wilc_del_beacon(vif); 1449 1450 if (ret) 1451 netdev_err(dev, "Host delete beacon fail\n"); 1452 1453 return ret; 1454 } 1455 1456 static int add_station(struct wiphy *wiphy, struct net_device *dev, 1457 const u8 *mac, struct station_parameters *params) 1458 { 1459 int ret = 0; 1460 struct wilc_vif *vif = netdev_priv(dev); 1461 struct wilc_priv *priv = &vif->priv; 1462 1463 if (vif->iftype == WILC_AP_MODE || vif->iftype == WILC_GO_MODE) { 1464 memcpy(priv->assoc_stainfo.sta_associated_bss[params->aid], mac, 1465 ETH_ALEN); 1466 1467 ret = wilc_add_station(vif, mac, params); 1468 if (ret) 1469 netdev_err(dev, "Host add station fail\n"); 1470 } 1471 1472 return ret; 1473 } 1474 1475 static int del_station(struct wiphy *wiphy, struct net_device *dev, 1476 struct station_del_parameters *params) 1477 { 1478 const u8 *mac = params->mac; 1479 int ret = 0; 1480 struct wilc_vif *vif = netdev_priv(dev); 1481 struct wilc_priv *priv = &vif->priv; 1482 struct sta_info *info; 1483 1484 if (!(vif->iftype == WILC_AP_MODE || vif->iftype == WILC_GO_MODE)) 1485 return ret; 1486 1487 info = &priv->assoc_stainfo; 1488 1489 if (!mac) 1490 ret = wilc_del_allstation(vif, info->sta_associated_bss); 1491 1492 ret = wilc_del_station(vif, mac); 1493 if (ret) 1494 netdev_err(dev, "Host delete station fail\n"); 1495 return ret; 1496 } 1497 1498 static int change_station(struct wiphy *wiphy, struct net_device *dev, 1499 const u8 *mac, struct station_parameters *params) 1500 { 1501 int ret = 0; 1502 struct wilc_vif *vif = netdev_priv(dev); 1503 1504 if (vif->iftype == WILC_AP_MODE || vif->iftype == WILC_GO_MODE) { 1505 ret = wilc_edit_station(vif, mac, params); 1506 if (ret) 1507 netdev_err(dev, "Host edit station fail\n"); 1508 } 1509 return ret; 1510 } 1511 1512 static struct wilc_vif *wilc_get_vif_from_type(struct wilc *wl, int type) 1513 { 1514 struct wilc_vif *vif; 1515 1516 wilc_for_each_vif(wl, vif) { 1517 if (vif->iftype == type) 1518 return vif; 1519 } 1520 1521 return NULL; 1522 } 1523 1524 static struct wireless_dev *add_virtual_intf(struct wiphy *wiphy, 1525 const char *name, 1526 unsigned char name_assign_type, 1527 enum nl80211_iftype type, 1528 struct vif_params *params) 1529 { 1530 struct wilc *wl = wiphy_priv(wiphy); 1531 struct wilc_vif *vif; 1532 struct wireless_dev *wdev; 1533 int iftype; 1534 1535 if (type == NL80211_IFTYPE_MONITOR) { 1536 struct net_device *ndev; 1537 int srcu_idx; 1538 1539 srcu_idx = srcu_read_lock(&wl->srcu); 1540 vif = wilc_get_vif_from_type(wl, WILC_AP_MODE); 1541 if (!vif) { 1542 vif = wilc_get_vif_from_type(wl, WILC_GO_MODE); 1543 if (!vif) { 1544 srcu_read_unlock(&wl->srcu, srcu_idx); 1545 goto validate_interface; 1546 } 1547 } 1548 1549 if (vif->monitor_flag) { 1550 srcu_read_unlock(&wl->srcu, srcu_idx); 1551 goto validate_interface; 1552 } 1553 1554 ndev = wilc_wfi_init_mon_interface(wl, name, vif->ndev); 1555 if (ndev) { 1556 vif->monitor_flag = 1; 1557 } else { 1558 srcu_read_unlock(&wl->srcu, srcu_idx); 1559 return ERR_PTR(-EINVAL); 1560 } 1561 1562 wdev = &vif->priv.wdev; 1563 srcu_read_unlock(&wl->srcu, srcu_idx); 1564 return wdev; 1565 } 1566 1567 validate_interface: 1568 mutex_lock(&wl->vif_mutex); 1569 if (wl->vif_num == WILC_NUM_CONCURRENT_IFC) { 1570 pr_err("Reached maximum number of interface\n"); 1571 mutex_unlock(&wl->vif_mutex); 1572 return ERR_PTR(-EINVAL); 1573 } 1574 mutex_unlock(&wl->vif_mutex); 1575 1576 switch (type) { 1577 case NL80211_IFTYPE_STATION: 1578 iftype = WILC_STATION_MODE; 1579 break; 1580 case NL80211_IFTYPE_AP: 1581 iftype = WILC_AP_MODE; 1582 break; 1583 default: 1584 return ERR_PTR(-EOPNOTSUPP); 1585 } 1586 1587 vif = wilc_netdev_ifc_init(wl, name, iftype, type, true); 1588 if (IS_ERR(vif)) 1589 return ERR_CAST(vif); 1590 1591 return &vif->priv.wdev; 1592 } 1593 1594 static int del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) 1595 { 1596 struct wilc *wl = wiphy_priv(wiphy); 1597 struct wilc_vif *vif; 1598 1599 if (wdev->iftype == NL80211_IFTYPE_AP || 1600 wdev->iftype == NL80211_IFTYPE_P2P_GO) 1601 wilc_wfi_deinit_mon_interface(wl, true); 1602 vif = netdev_priv(wdev->netdev); 1603 cfg80211_stop_iface(wiphy, wdev, GFP_KERNEL); 1604 cfg80211_unregister_netdevice(vif->ndev); 1605 vif->monitor_flag = 0; 1606 1607 mutex_lock(&wl->vif_mutex); 1608 list_del_rcu(&vif->list); 1609 wl->vif_num--; 1610 mutex_unlock(&wl->vif_mutex); 1611 synchronize_srcu(&wl->srcu); 1612 return 0; 1613 } 1614 1615 static void wilc_set_wakeup(struct wiphy *wiphy, bool enabled) 1616 { 1617 struct wilc *wl = wiphy_priv(wiphy); 1618 struct wilc_vif *vif; 1619 int srcu_idx; 1620 1621 srcu_idx = srcu_read_lock(&wl->srcu); 1622 vif = wilc_get_wl_to_vif(wl); 1623 if (IS_ERR(vif)) { 1624 srcu_read_unlock(&wl->srcu, srcu_idx); 1625 return; 1626 } 1627 1628 netdev_info(vif->ndev, "cfg set wake up = %d\n", enabled); 1629 wilc_set_wowlan_trigger(vif, enabled); 1630 srcu_read_unlock(&wl->srcu, srcu_idx); 1631 } 1632 1633 static int set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, 1634 int radio_idx, enum nl80211_tx_power_setting type, 1635 int mbm) 1636 { 1637 int ret; 1638 int srcu_idx; 1639 s32 tx_power = MBM_TO_DBM(mbm); 1640 struct wilc *wl = wiphy_priv(wiphy); 1641 struct wilc_vif *vif; 1642 1643 if (!wl->initialized) 1644 return -EIO; 1645 1646 srcu_idx = srcu_read_lock(&wl->srcu); 1647 vif = wilc_get_wl_to_vif(wl); 1648 if (IS_ERR(vif)) { 1649 srcu_read_unlock(&wl->srcu, srcu_idx); 1650 return -EINVAL; 1651 } 1652 1653 netdev_info(vif->ndev, "Setting tx power %d\n", tx_power); 1654 if (tx_power < 0) 1655 tx_power = 0; 1656 else if (tx_power > 18) 1657 tx_power = 18; 1658 ret = wilc_set_tx_power(vif, tx_power); 1659 if (ret) 1660 netdev_err(vif->ndev, "Failed to set tx power\n"); 1661 srcu_read_unlock(&wl->srcu, srcu_idx); 1662 1663 return ret; 1664 } 1665 1666 static int get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, 1667 int radio_idx, unsigned int link_id, int *dbm) 1668 { 1669 int ret; 1670 struct wilc_vif *vif = netdev_priv(wdev->netdev); 1671 struct wilc *wl = vif->wilc; 1672 1673 /* If firmware is not started, return. */ 1674 if (!wl->initialized) 1675 return -EIO; 1676 1677 ret = wilc_get_tx_power(vif, (u8 *)dbm); 1678 if (ret) 1679 netdev_err(vif->ndev, "Failed to get tx power\n"); 1680 1681 return ret; 1682 } 1683 1684 static const struct cfg80211_ops wilc_cfg80211_ops = { 1685 .set_monitor_channel = set_channel, 1686 .scan = scan, 1687 .connect = connect, 1688 .disconnect = disconnect, 1689 .add_key = add_key, 1690 .del_key = del_key, 1691 .get_key = get_key, 1692 .set_default_key = set_default_key, 1693 .set_default_mgmt_key = set_default_mgmt_key, 1694 .add_virtual_intf = add_virtual_intf, 1695 .del_virtual_intf = del_virtual_intf, 1696 .change_virtual_intf = change_virtual_intf, 1697 1698 .start_ap = start_ap, 1699 .change_beacon = change_beacon, 1700 .stop_ap = stop_ap, 1701 .add_station = add_station, 1702 .del_station = del_station, 1703 .change_station = change_station, 1704 .get_station = get_station, 1705 .dump_station = dump_station, 1706 .set_wiphy_params = set_wiphy_params, 1707 1708 .external_auth = external_auth, 1709 .set_pmksa = set_pmksa, 1710 .del_pmksa = del_pmksa, 1711 .flush_pmksa = flush_pmksa, 1712 .remain_on_channel = remain_on_channel, 1713 .cancel_remain_on_channel = cancel_remain_on_channel, 1714 .mgmt_tx_cancel_wait = mgmt_tx_cancel_wait, 1715 .mgmt_tx = mgmt_tx, 1716 .update_mgmt_frame_registrations = wilc_update_mgmt_frame_registrations, 1717 .set_power_mgmt = set_power_mgmt, 1718 .set_cqm_rssi_config = set_cqm_rssi_config, 1719 1720 .set_wakeup = wilc_set_wakeup, 1721 .set_tx_power = set_tx_power, 1722 .get_tx_power = get_tx_power, 1723 1724 }; 1725 1726 static void wlan_init_locks(struct wilc *wl) 1727 { 1728 mutex_init(&wl->hif_cs); 1729 mutex_init(&wl->rxq_cs); 1730 mutex_init(&wl->cfg_cmd_lock); 1731 mutex_init(&wl->vif_mutex); 1732 mutex_init(&wl->deinit_lock); 1733 1734 spin_lock_init(&wl->txq_spinlock); 1735 mutex_init(&wl->txq_add_to_head_cs); 1736 1737 init_completion(&wl->txq_event); 1738 init_completion(&wl->cfg_event); 1739 init_completion(&wl->sync_event); 1740 init_completion(&wl->txq_thread_started); 1741 init_srcu_struct(&wl->srcu); 1742 } 1743 1744 void wlan_deinit_locks(struct wilc *wilc) 1745 { 1746 mutex_destroy(&wilc->hif_cs); 1747 mutex_destroy(&wilc->rxq_cs); 1748 mutex_destroy(&wilc->cfg_cmd_lock); 1749 mutex_destroy(&wilc->txq_add_to_head_cs); 1750 mutex_destroy(&wilc->vif_mutex); 1751 mutex_destroy(&wilc->deinit_lock); 1752 cleanup_srcu_struct(&wilc->srcu); 1753 } 1754 1755 static struct wilc *wilc_create_wiphy(struct device *dev) 1756 { 1757 struct wiphy *wiphy; 1758 struct wilc *wl; 1759 1760 wiphy = wiphy_new(&wilc_cfg80211_ops, sizeof(*wl)); 1761 if (!wiphy) 1762 return NULL; 1763 1764 wl = wiphy_priv(wiphy); 1765 1766 memcpy(wl->bitrates, wilc_bitrates, sizeof(wilc_bitrates)); 1767 memcpy(wl->channels, wilc_2ghz_channels, sizeof(wilc_2ghz_channels)); 1768 wl->band.bitrates = wl->bitrates; 1769 wl->band.n_bitrates = ARRAY_SIZE(wl->bitrates); 1770 wl->band.channels = wl->channels; 1771 wl->band.n_channels = ARRAY_SIZE(wilc_2ghz_channels); 1772 1773 wl->band.ht_cap.ht_supported = 1; 1774 wl->band.ht_cap.cap |= (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT); 1775 wl->band.ht_cap.mcs.rx_mask[0] = 0xff; 1776 wl->band.ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K; 1777 wl->band.ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; 1778 1779 wiphy->bands[NL80211_BAND_2GHZ] = &wl->band; 1780 1781 wiphy->max_scan_ssids = WILC_MAX_NUM_PROBED_SSID; 1782 #ifdef CONFIG_PM 1783 wiphy->wowlan = &wowlan_support; 1784 #endif 1785 wiphy->max_num_pmkids = WILC_MAX_NUM_PMKIDS; 1786 wiphy->max_scan_ie_len = 1000; 1787 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 1788 memcpy(wl->cipher_suites, wilc_cipher_suites, 1789 sizeof(wilc_cipher_suites)); 1790 wiphy->cipher_suites = wl->cipher_suites; 1791 wiphy->n_cipher_suites = ARRAY_SIZE(wilc_cipher_suites); 1792 wiphy->mgmt_stypes = wilc_wfi_cfg80211_mgmt_types; 1793 1794 wiphy->max_remain_on_channel_duration = 500; 1795 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 1796 BIT(NL80211_IFTYPE_AP) | 1797 BIT(NL80211_IFTYPE_MONITOR) | 1798 BIT(NL80211_IFTYPE_P2P_GO) | 1799 BIT(NL80211_IFTYPE_P2P_CLIENT); 1800 wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; 1801 set_wiphy_dev(wiphy, dev); 1802 wl->wiphy = wiphy; 1803 return wl; 1804 } 1805 1806 int wilc_cfg80211_init(struct wilc **wilc, struct device *dev, int io_type, 1807 const struct wilc_hif_func *ops) 1808 { 1809 struct wilc *wl; 1810 int ret, i; 1811 1812 wl = wilc_create_wiphy(dev); 1813 if (!wl) 1814 return -EINVAL; 1815 1816 wlan_init_locks(wl); 1817 1818 ret = wilc_wlan_cfg_init(wl); 1819 if (ret) 1820 goto free_wl; 1821 1822 *wilc = wl; 1823 wl->io_type = io_type; 1824 wl->hif_func = ops; 1825 1826 for (i = 0; i < NQUEUES; i++) 1827 INIT_LIST_HEAD(&wl->txq[i].txq_head.list); 1828 1829 INIT_LIST_HEAD(&wl->rxq_head.list); 1830 INIT_LIST_HEAD(&wl->vif_list); 1831 1832 wl->hif_workqueue = alloc_ordered_workqueue("%s", WQ_MEM_RECLAIM, 1833 wiphy_name(wl->wiphy)); 1834 if (!wl->hif_workqueue) { 1835 ret = -ENOMEM; 1836 goto free_cfg; 1837 } 1838 1839 return 0; 1840 1841 free_cfg: 1842 wilc_wlan_cfg_deinit(wl); 1843 1844 free_wl: 1845 wlan_deinit_locks(wl); 1846 wiphy_free(wl->wiphy); 1847 return ret; 1848 } 1849 EXPORT_SYMBOL_GPL(wilc_cfg80211_init); 1850 1851 int wilc_cfg80211_register(struct wilc *wilc) 1852 { 1853 /* WPA3/SAE supported only on WILC1000 */ 1854 if (is_wilc1000(wilc->chipid)) 1855 wilc->wiphy->features |= NL80211_FEATURE_SAE; 1856 1857 return wiphy_register(wilc->wiphy); 1858 } 1859 EXPORT_SYMBOL_GPL(wilc_cfg80211_register); 1860 1861 int wilc_init_host_int(struct net_device *net) 1862 { 1863 int ret; 1864 struct wilc_vif *vif = netdev_priv(net); 1865 struct wilc_priv *priv = &vif->priv; 1866 1867 priv->p2p_listen_state = false; 1868 1869 mutex_init(&priv->scan_req_lock); 1870 ret = wilc_init(net, &priv->hif_drv); 1871 if (ret) 1872 netdev_err(net, "Error while initializing hostinterface\n"); 1873 1874 return ret; 1875 } 1876 1877 void wilc_deinit_host_int(struct net_device *net) 1878 { 1879 int ret; 1880 struct wilc_vif *vif = netdev_priv(net); 1881 struct wilc_priv *priv = &vif->priv; 1882 1883 priv->p2p_listen_state = false; 1884 1885 flush_workqueue(vif->wilc->hif_workqueue); 1886 mutex_destroy(&priv->scan_req_lock); 1887 ret = wilc_deinit(vif); 1888 1889 if (ret) 1890 netdev_err(net, "Error while deinitializing host interface\n"); 1891 } 1892 1893