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 = 0xffff, 24 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 25 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) 26 }, 27 [NL80211_IFTYPE_AP] = { 28 .tx = 0xffff, 29 .rx = BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | 30 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | 31 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | 32 BIT(IEEE80211_STYPE_DISASSOC >> 4) | 33 BIT(IEEE80211_STYPE_AUTH >> 4) | 34 BIT(IEEE80211_STYPE_DEAUTH >> 4) | 35 BIT(IEEE80211_STYPE_ACTION >> 4) 36 }, 37 [NL80211_IFTYPE_P2P_CLIENT] = { 38 .tx = 0xffff, 39 .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | 40 BIT(IEEE80211_STYPE_PROBE_REQ >> 4) | 41 BIT(IEEE80211_STYPE_ASSOC_REQ >> 4) | 42 BIT(IEEE80211_STYPE_REASSOC_REQ >> 4) | 43 BIT(IEEE80211_STYPE_DISASSOC >> 4) | 44 BIT(IEEE80211_STYPE_AUTH >> 4) | 45 BIT(IEEE80211_STYPE_DEAUTH >> 4) 46 } 47 }; 48 49 #ifdef CONFIG_PM 50 static const struct wiphy_wowlan_support wowlan_support = { 51 .flags = WIPHY_WOWLAN_ANY 52 }; 53 #endif 54 55 struct wilc_p2p_mgmt_data { 56 int size; 57 u8 *buff; 58 }; 59 60 struct wilc_p2p_pub_act_frame { 61 u8 category; 62 u8 action; 63 u8 oui[3]; 64 u8 oui_type; 65 u8 oui_subtype; 66 u8 dialog_token; 67 u8 elem[]; 68 } __packed; 69 70 struct wilc_vendor_specific_ie { 71 u8 tag_number; 72 u8 tag_len; 73 u8 oui[3]; 74 u8 oui_type; 75 u8 attr[]; 76 } __packed; 77 78 struct wilc_attr_entry { 79 u8 attr_type; 80 __le16 attr_len; 81 u8 val[]; 82 } __packed; 83 84 struct wilc_attr_oper_ch { 85 u8 attr_type; 86 __le16 attr_len; 87 u8 country_code[IEEE80211_COUNTRY_STRING_LEN]; 88 u8 op_class; 89 u8 op_channel; 90 } __packed; 91 92 struct wilc_attr_ch_list { 93 u8 attr_type; 94 __le16 attr_len; 95 u8 country_code[IEEE80211_COUNTRY_STRING_LEN]; 96 u8 elem[]; 97 } __packed; 98 99 struct wilc_ch_list_elem { 100 u8 op_class; 101 u8 no_of_channels; 102 u8 ch_list[]; 103 } __packed; 104 105 static void cfg_scan_result(enum scan_event scan_event, 106 struct wilc_rcvd_net_info *info, void *user_void) 107 { 108 struct wilc_priv *priv = user_void; 109 110 if (!priv->cfg_scanning) 111 return; 112 113 if (scan_event == SCAN_EVENT_NETWORK_FOUND) { 114 s32 freq; 115 struct ieee80211_channel *channel; 116 struct cfg80211_bss *bss; 117 struct wiphy *wiphy = priv->dev->ieee80211_ptr->wiphy; 118 119 if (!wiphy || !info) 120 return; 121 122 freq = ieee80211_channel_to_frequency((s32)info->ch, 123 NL80211_BAND_2GHZ); 124 channel = ieee80211_get_channel(wiphy, freq); 125 if (!channel) 126 return; 127 128 bss = cfg80211_inform_bss_frame(wiphy, channel, info->mgmt, 129 info->frame_len, 130 (s32)info->rssi * 100, 131 GFP_KERNEL); 132 cfg80211_put_bss(wiphy, bss); 133 } else if (scan_event == SCAN_EVENT_DONE) { 134 mutex_lock(&priv->scan_req_lock); 135 136 if (priv->scan_req) { 137 struct cfg80211_scan_info info = { 138 .aborted = false, 139 }; 140 141 cfg80211_scan_done(priv->scan_req, &info); 142 priv->cfg_scanning = false; 143 priv->scan_req = NULL; 144 } 145 mutex_unlock(&priv->scan_req_lock); 146 } else if (scan_event == SCAN_EVENT_ABORTED) { 147 mutex_lock(&priv->scan_req_lock); 148 149 if (priv->scan_req) { 150 struct cfg80211_scan_info info = { 151 .aborted = false, 152 }; 153 154 cfg80211_scan_done(priv->scan_req, &info); 155 priv->cfg_scanning = false; 156 priv->scan_req = NULL; 157 } 158 mutex_unlock(&priv->scan_req_lock); 159 } 160 } 161 162 static void cfg_connect_result(enum conn_event conn_disconn_evt, u8 mac_status, 163 void *priv_data) 164 { 165 struct wilc_priv *priv = priv_data; 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 cfg80211_chan_def *chandef) 235 { 236 struct wilc *wl = wiphy_priv(wiphy); 237 struct wilc_vif *vif; 238 u32 channelnum; 239 int result; 240 int srcu_idx; 241 242 srcu_idx = srcu_read_lock(&wl->srcu); 243 vif = wilc_get_wl_to_vif(wl); 244 if (IS_ERR(vif)) { 245 srcu_read_unlock(&wl->srcu, srcu_idx); 246 return PTR_ERR(vif); 247 } 248 249 channelnum = ieee80211_frequency_to_channel(chandef->chan->center_freq); 250 251 wl->op_ch = channelnum; 252 result = wilc_set_mac_chnl_num(vif, channelnum); 253 if (result) 254 netdev_err(vif->ndev, "Error in setting channel\n"); 255 256 srcu_read_unlock(&wl->srcu, srcu_idx); 257 return result; 258 } 259 260 static int scan(struct wiphy *wiphy, struct cfg80211_scan_request *request) 261 { 262 struct wilc_vif *vif = netdev_priv(request->wdev->netdev); 263 struct wilc_priv *priv = &vif->priv; 264 u32 i; 265 int ret = 0; 266 u8 scan_ch_list[WILC_MAX_NUM_SCANNED_CH]; 267 u8 scan_type; 268 269 if (request->n_channels > WILC_MAX_NUM_SCANNED_CH) { 270 netdev_err(vif->ndev, "Requested scanned channels over\n"); 271 return -EINVAL; 272 } 273 274 priv->scan_req = request; 275 priv->cfg_scanning = true; 276 for (i = 0; i < request->n_channels; i++) { 277 u16 freq = request->channels[i]->center_freq; 278 279 scan_ch_list[i] = ieee80211_frequency_to_channel(freq); 280 } 281 282 if (request->n_ssids) 283 scan_type = WILC_FW_ACTIVE_SCAN; 284 else 285 scan_type = WILC_FW_PASSIVE_SCAN; 286 287 ret = wilc_scan(vif, WILC_FW_USER_SCAN, scan_type, scan_ch_list, 288 request->n_channels, cfg_scan_result, (void *)priv, 289 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 authtype auth_type = WILC_FW_AUTH_ANY; 309 u32 cipher_group; 310 struct cfg80211_bss *bss; 311 void *join_params; 312 u8 ch; 313 314 vif->connecting = true; 315 316 memset(priv->wep_key, 0, sizeof(priv->wep_key)); 317 memset(priv->wep_key_len, 0, sizeof(priv->wep_key_len)); 318 319 cipher_group = sme->crypto.cipher_group; 320 if (cipher_group != 0) { 321 if (cipher_group == WLAN_CIPHER_SUITE_WEP40) { 322 security = WILC_FW_SEC_WEP; 323 324 priv->wep_key_len[sme->key_idx] = sme->key_len; 325 memcpy(priv->wep_key[sme->key_idx], sme->key, 326 sme->key_len); 327 328 wilc_set_wep_default_keyid(vif, sme->key_idx); 329 wilc_add_wep_key_bss_sta(vif, sme->key, sme->key_len, 330 sme->key_idx); 331 } else if (cipher_group == WLAN_CIPHER_SUITE_WEP104) { 332 security = WILC_FW_SEC_WEP_EXTENDED; 333 334 priv->wep_key_len[sme->key_idx] = sme->key_len; 335 memcpy(priv->wep_key[sme->key_idx], sme->key, 336 sme->key_len); 337 338 wilc_set_wep_default_keyid(vif, sme->key_idx); 339 wilc_add_wep_key_bss_sta(vif, sme->key, sme->key_len, 340 sme->key_idx); 341 } else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2) { 342 if (cipher_group == WLAN_CIPHER_SUITE_TKIP) 343 security = WILC_FW_SEC_WPA2_TKIP; 344 else 345 security = WILC_FW_SEC_WPA2_AES; 346 } else if (sme->crypto.wpa_versions & NL80211_WPA_VERSION_1) { 347 if (cipher_group == WLAN_CIPHER_SUITE_TKIP) 348 security = WILC_FW_SEC_WPA_TKIP; 349 else 350 security = WILC_FW_SEC_WPA_AES; 351 } else { 352 ret = -ENOTSUPP; 353 netdev_err(dev, "%s: Unsupported cipher\n", 354 __func__); 355 goto out_error; 356 } 357 } 358 359 if ((sme->crypto.wpa_versions & NL80211_WPA_VERSION_1) || 360 (sme->crypto.wpa_versions & NL80211_WPA_VERSION_2)) { 361 for (i = 0; i < sme->crypto.n_ciphers_pairwise; i++) { 362 u32 ciphers_pairwise = sme->crypto.ciphers_pairwise[i]; 363 364 if (ciphers_pairwise == WLAN_CIPHER_SUITE_TKIP) 365 security |= WILC_FW_TKIP; 366 else 367 security |= WILC_FW_AES; 368 } 369 } 370 371 switch (sme->auth_type) { 372 case NL80211_AUTHTYPE_OPEN_SYSTEM: 373 auth_type = WILC_FW_AUTH_OPEN_SYSTEM; 374 break; 375 376 case NL80211_AUTHTYPE_SHARED_KEY: 377 auth_type = WILC_FW_AUTH_SHARED_KEY; 378 break; 379 380 default: 381 break; 382 } 383 384 if (sme->crypto.n_akm_suites) { 385 if (sme->crypto.akm_suites[0] == WLAN_AKM_SUITE_8021X) 386 auth_type = WILC_FW_AUTH_IEEE8021; 387 } 388 389 if (wfi_drv->usr_scan_req.scan_result) { 390 netdev_err(vif->ndev, "%s: Scan in progress\n", __func__); 391 ret = -EBUSY; 392 goto out_error; 393 } 394 395 bss = cfg80211_get_bss(wiphy, sme->channel, sme->bssid, sme->ssid, 396 sme->ssid_len, IEEE80211_BSS_TYPE_ANY, 397 IEEE80211_PRIVACY(sme->privacy)); 398 if (!bss) { 399 ret = -EINVAL; 400 goto out_error; 401 } 402 403 if (ether_addr_equal_unaligned(vif->bssid, bss->bssid)) { 404 ret = -EALREADY; 405 goto out_put_bss; 406 } 407 408 join_params = wilc_parse_join_bss_param(bss, &sme->crypto); 409 if (!join_params) { 410 netdev_err(dev, "%s: failed to construct join param\n", 411 __func__); 412 ret = -EINVAL; 413 goto out_put_bss; 414 } 415 416 ch = ieee80211_frequency_to_channel(bss->channel->center_freq); 417 vif->wilc->op_ch = ch; 418 if (vif->iftype != WILC_CLIENT_MODE) 419 vif->wilc->sta_ch = ch; 420 421 wilc_wlan_set_bssid(dev, bss->bssid, WILC_STATION_MODE); 422 423 wfi_drv->conn_info.security = security; 424 wfi_drv->conn_info.auth_type = auth_type; 425 wfi_drv->conn_info.ch = ch; 426 wfi_drv->conn_info.conn_result = cfg_connect_result; 427 wfi_drv->conn_info.arg = priv; 428 wfi_drv->conn_info.param = join_params; 429 430 ret = wilc_set_join_req(vif, bss->bssid, sme->ie, sme->ie_len); 431 if (ret) { 432 netdev_err(dev, "wilc_set_join_req(): Error\n"); 433 ret = -ENOENT; 434 if (vif->iftype != WILC_CLIENT_MODE) 435 vif->wilc->sta_ch = WILC_INVALID_CHANNEL; 436 wilc_wlan_set_bssid(dev, NULL, WILC_STATION_MODE); 437 wfi_drv->conn_info.conn_result = NULL; 438 kfree(join_params); 439 goto out_put_bss; 440 } 441 kfree(join_params); 442 vif->bss = bss; 443 cfg80211_put_bss(wiphy, bss); 444 return 0; 445 446 out_put_bss: 447 cfg80211_put_bss(wiphy, bss); 448 449 out_error: 450 vif->connecting = false; 451 return ret; 452 } 453 454 static int disconnect(struct wiphy *wiphy, struct net_device *dev, 455 u16 reason_code) 456 { 457 struct wilc_vif *vif = netdev_priv(dev); 458 struct wilc_priv *priv = &vif->priv; 459 struct wilc *wilc = vif->wilc; 460 int ret; 461 462 vif->connecting = false; 463 464 if (!wilc) 465 return -EIO; 466 467 if (wilc->close) { 468 /* already disconnected done */ 469 cfg80211_disconnected(dev, 0, NULL, 0, true, GFP_KERNEL); 470 return 0; 471 } 472 473 if (vif->iftype != WILC_CLIENT_MODE) 474 wilc->sta_ch = WILC_INVALID_CHANNEL; 475 wilc_wlan_set_bssid(priv->dev, NULL, WILC_STATION_MODE); 476 477 priv->hif_drv->p2p_timeout = 0; 478 479 ret = wilc_disconnect(vif); 480 if (ret != 0) { 481 netdev_err(priv->dev, "Error in disconnecting\n"); 482 ret = -EINVAL; 483 } 484 485 vif->bss = NULL; 486 487 return ret; 488 } 489 490 static inline void wilc_wfi_cfg_copy_wep_info(struct wilc_priv *priv, 491 u8 key_index, 492 struct key_params *params) 493 { 494 priv->wep_key_len[key_index] = params->key_len; 495 memcpy(priv->wep_key[key_index], params->key, params->key_len); 496 } 497 498 static int wilc_wfi_cfg_allocate_wpa_entry(struct wilc_priv *priv, u8 idx) 499 { 500 if (!priv->wilc_gtk[idx]) { 501 priv->wilc_gtk[idx] = kzalloc(sizeof(*priv->wilc_gtk[idx]), 502 GFP_KERNEL); 503 if (!priv->wilc_gtk[idx]) 504 return -ENOMEM; 505 } 506 507 if (!priv->wilc_ptk[idx]) { 508 priv->wilc_ptk[idx] = kzalloc(sizeof(*priv->wilc_ptk[idx]), 509 GFP_KERNEL); 510 if (!priv->wilc_ptk[idx]) 511 return -ENOMEM; 512 } 513 514 return 0; 515 } 516 517 static int wilc_wfi_cfg_copy_wpa_info(struct wilc_wfi_key *key_info, 518 struct key_params *params) 519 { 520 kfree(key_info->key); 521 522 key_info->key = kmemdup(params->key, params->key_len, GFP_KERNEL); 523 if (!key_info->key) 524 return -ENOMEM; 525 526 kfree(key_info->seq); 527 528 if (params->seq_len > 0) { 529 key_info->seq = kmemdup(params->seq, params->seq_len, 530 GFP_KERNEL); 531 if (!key_info->seq) 532 return -ENOMEM; 533 } 534 535 key_info->cipher = params->cipher; 536 key_info->key_len = params->key_len; 537 key_info->seq_len = params->seq_len; 538 539 return 0; 540 } 541 542 static int add_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index, 543 bool pairwise, const u8 *mac_addr, struct key_params *params) 544 545 { 546 int ret = 0, keylen = params->key_len; 547 const u8 *rx_mic = NULL; 548 const u8 *tx_mic = NULL; 549 u8 mode = WILC_FW_SEC_NO; 550 u8 op_mode; 551 struct wilc_vif *vif = netdev_priv(netdev); 552 struct wilc_priv *priv = &vif->priv; 553 554 switch (params->cipher) { 555 case WLAN_CIPHER_SUITE_WEP40: 556 case WLAN_CIPHER_SUITE_WEP104: 557 if (priv->wdev.iftype == NL80211_IFTYPE_AP) { 558 wilc_wfi_cfg_copy_wep_info(priv, key_index, params); 559 560 if (params->cipher == WLAN_CIPHER_SUITE_WEP40) 561 mode = WILC_FW_SEC_WEP; 562 else 563 mode = WILC_FW_SEC_WEP_EXTENDED; 564 565 ret = wilc_add_wep_key_bss_ap(vif, params->key, 566 params->key_len, 567 key_index, mode, 568 WILC_FW_AUTH_OPEN_SYSTEM); 569 break; 570 } 571 if (memcmp(params->key, priv->wep_key[key_index], 572 params->key_len)) { 573 wilc_wfi_cfg_copy_wep_info(priv, key_index, params); 574 575 ret = wilc_add_wep_key_bss_sta(vif, params->key, 576 params->key_len, 577 key_index); 578 } 579 580 break; 581 582 case WLAN_CIPHER_SUITE_TKIP: 583 case WLAN_CIPHER_SUITE_CCMP: 584 if (priv->wdev.iftype == NL80211_IFTYPE_AP || 585 priv->wdev.iftype == NL80211_IFTYPE_P2P_GO) { 586 struct wilc_wfi_key *key; 587 588 ret = wilc_wfi_cfg_allocate_wpa_entry(priv, key_index); 589 if (ret) 590 return -ENOMEM; 591 592 if (params->key_len > 16 && 593 params->cipher == WLAN_CIPHER_SUITE_TKIP) { 594 tx_mic = params->key + 24; 595 rx_mic = params->key + 16; 596 keylen = params->key_len - 16; 597 } 598 599 if (!pairwise) { 600 if (params->cipher == WLAN_CIPHER_SUITE_TKIP) 601 mode = WILC_FW_SEC_WPA_TKIP; 602 else 603 mode = WILC_FW_SEC_WPA2_AES; 604 605 priv->wilc_groupkey = mode; 606 607 key = priv->wilc_gtk[key_index]; 608 } else { 609 if (params->cipher == WLAN_CIPHER_SUITE_TKIP) 610 mode = WILC_FW_SEC_WPA_TKIP; 611 else 612 mode = priv->wilc_groupkey | WILC_FW_AES; 613 614 key = priv->wilc_ptk[key_index]; 615 } 616 ret = wilc_wfi_cfg_copy_wpa_info(key, params); 617 if (ret) 618 return -ENOMEM; 619 620 op_mode = WILC_AP_MODE; 621 } else { 622 if (params->key_len > 16 && 623 params->cipher == WLAN_CIPHER_SUITE_TKIP) { 624 rx_mic = params->key + 24; 625 tx_mic = params->key + 16; 626 keylen = params->key_len - 16; 627 } 628 629 op_mode = WILC_STATION_MODE; 630 } 631 632 if (!pairwise) 633 ret = wilc_add_rx_gtk(vif, params->key, keylen, 634 key_index, params->seq_len, 635 params->seq, rx_mic, tx_mic, 636 op_mode, mode); 637 else 638 ret = wilc_add_ptk(vif, params->key, keylen, mac_addr, 639 rx_mic, tx_mic, op_mode, mode, 640 key_index); 641 642 break; 643 644 default: 645 netdev_err(netdev, "%s: Unsupported cipher\n", __func__); 646 ret = -ENOTSUPP; 647 } 648 649 return ret; 650 } 651 652 static int del_key(struct wiphy *wiphy, struct net_device *netdev, 653 u8 key_index, 654 bool pairwise, 655 const u8 *mac_addr) 656 { 657 struct wilc_vif *vif = netdev_priv(netdev); 658 struct wilc_priv *priv = &vif->priv; 659 660 if (priv->wilc_gtk[key_index]) { 661 kfree(priv->wilc_gtk[key_index]->key); 662 priv->wilc_gtk[key_index]->key = NULL; 663 kfree(priv->wilc_gtk[key_index]->seq); 664 priv->wilc_gtk[key_index]->seq = NULL; 665 666 kfree(priv->wilc_gtk[key_index]); 667 priv->wilc_gtk[key_index] = NULL; 668 } 669 670 if (priv->wilc_ptk[key_index]) { 671 kfree(priv->wilc_ptk[key_index]->key); 672 priv->wilc_ptk[key_index]->key = NULL; 673 kfree(priv->wilc_ptk[key_index]->seq); 674 priv->wilc_ptk[key_index]->seq = NULL; 675 kfree(priv->wilc_ptk[key_index]); 676 priv->wilc_ptk[key_index] = NULL; 677 } 678 679 if (key_index <= 3 && priv->wep_key_len[key_index]) { 680 memset(priv->wep_key[key_index], 0, 681 priv->wep_key_len[key_index]); 682 priv->wep_key_len[key_index] = 0; 683 wilc_remove_wep_key(vif, key_index); 684 } 685 686 return 0; 687 } 688 689 static int get_key(struct wiphy *wiphy, struct net_device *netdev, u8 key_index, 690 bool pairwise, const u8 *mac_addr, void *cookie, 691 void (*callback)(void *cookie, struct key_params *)) 692 { 693 struct wilc_vif *vif = netdev_priv(netdev); 694 struct wilc_priv *priv = &vif->priv; 695 struct key_params key_params; 696 697 if (!pairwise) { 698 key_params.key = priv->wilc_gtk[key_index]->key; 699 key_params.cipher = priv->wilc_gtk[key_index]->cipher; 700 key_params.key_len = priv->wilc_gtk[key_index]->key_len; 701 key_params.seq = priv->wilc_gtk[key_index]->seq; 702 key_params.seq_len = priv->wilc_gtk[key_index]->seq_len; 703 } else { 704 key_params.key = priv->wilc_ptk[key_index]->key; 705 key_params.cipher = priv->wilc_ptk[key_index]->cipher; 706 key_params.key_len = priv->wilc_ptk[key_index]->key_len; 707 key_params.seq = priv->wilc_ptk[key_index]->seq; 708 key_params.seq_len = priv->wilc_ptk[key_index]->seq_len; 709 } 710 711 callback(cookie, &key_params); 712 713 return 0; 714 } 715 716 static int set_default_key(struct wiphy *wiphy, struct net_device *netdev, 717 u8 key_index, bool unicast, bool multicast) 718 { 719 struct wilc_vif *vif = netdev_priv(netdev); 720 721 wilc_set_wep_default_keyid(vif, key_index); 722 723 return 0; 724 } 725 726 static int get_station(struct wiphy *wiphy, struct net_device *dev, 727 const u8 *mac, struct station_info *sinfo) 728 { 729 struct wilc_vif *vif = netdev_priv(dev); 730 struct wilc_priv *priv = &vif->priv; 731 struct wilc *wilc = vif->wilc; 732 u32 i = 0; 733 u32 associatedsta = ~0; 734 u32 inactive_time = 0; 735 736 if (vif->iftype == WILC_AP_MODE || vif->iftype == WILC_GO_MODE) { 737 for (i = 0; i < NUM_STA_ASSOCIATED; i++) { 738 if (!(memcmp(mac, 739 priv->assoc_stainfo.sta_associated_bss[i], 740 ETH_ALEN))) { 741 associatedsta = i; 742 break; 743 } 744 } 745 746 if (associatedsta == ~0) { 747 netdev_err(dev, "sta required is not associated\n"); 748 return -ENOENT; 749 } 750 751 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME); 752 753 wilc_get_inactive_time(vif, mac, &inactive_time); 754 sinfo->inactive_time = 1000 * inactive_time; 755 } else if (vif->iftype == WILC_STATION_MODE) { 756 struct rf_info stats; 757 758 if (!wilc->initialized) 759 return -EBUSY; 760 761 wilc_get_statistics(vif, &stats); 762 763 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL) | 764 BIT_ULL(NL80211_STA_INFO_RX_PACKETS) | 765 BIT_ULL(NL80211_STA_INFO_TX_PACKETS) | 766 BIT_ULL(NL80211_STA_INFO_TX_FAILED) | 767 BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 768 769 sinfo->signal = stats.rssi; 770 sinfo->rx_packets = stats.rx_cnt; 771 sinfo->tx_packets = stats.tx_cnt + stats.tx_fail_cnt; 772 sinfo->tx_failed = stats.tx_fail_cnt; 773 sinfo->txrate.legacy = stats.link_speed * 10; 774 775 if (stats.link_speed > TCP_ACK_FILTER_LINK_SPEED_THRESH && 776 stats.link_speed != DEFAULT_LINK_SPEED) 777 wilc_enable_tcp_ack_filter(vif, true); 778 else if (stats.link_speed != DEFAULT_LINK_SPEED) 779 wilc_enable_tcp_ack_filter(vif, false); 780 } 781 return 0; 782 } 783 784 static int change_bss(struct wiphy *wiphy, struct net_device *dev, 785 struct bss_parameters *params) 786 { 787 return 0; 788 } 789 790 static int set_wiphy_params(struct wiphy *wiphy, u32 changed) 791 { 792 int ret = -EINVAL; 793 struct cfg_param_attr cfg_param_val; 794 struct wilc *wl = wiphy_priv(wiphy); 795 struct wilc_vif *vif; 796 struct wilc_priv *priv; 797 int srcu_idx; 798 799 srcu_idx = srcu_read_lock(&wl->srcu); 800 vif = wilc_get_wl_to_vif(wl); 801 if (IS_ERR(vif)) 802 goto out; 803 804 priv = &vif->priv; 805 cfg_param_val.flag = 0; 806 807 if (changed & WIPHY_PARAM_RETRY_SHORT) { 808 netdev_dbg(vif->ndev, 809 "Setting WIPHY_PARAM_RETRY_SHORT %d\n", 810 wiphy->retry_short); 811 cfg_param_val.flag |= WILC_CFG_PARAM_RETRY_SHORT; 812 cfg_param_val.short_retry_limit = wiphy->retry_short; 813 } 814 if (changed & WIPHY_PARAM_RETRY_LONG) { 815 netdev_dbg(vif->ndev, 816 "Setting WIPHY_PARAM_RETRY_LONG %d\n", 817 wiphy->retry_long); 818 cfg_param_val.flag |= WILC_CFG_PARAM_RETRY_LONG; 819 cfg_param_val.long_retry_limit = wiphy->retry_long; 820 } 821 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 822 if (wiphy->frag_threshold > 255 && 823 wiphy->frag_threshold < 7937) { 824 netdev_dbg(vif->ndev, 825 "Setting WIPHY_PARAM_FRAG_THRESHOLD %d\n", 826 wiphy->frag_threshold); 827 cfg_param_val.flag |= WILC_CFG_PARAM_FRAG_THRESHOLD; 828 cfg_param_val.frag_threshold = wiphy->frag_threshold; 829 } else { 830 netdev_err(vif->ndev, 831 "Fragmentation threshold out of range\n"); 832 goto out; 833 } 834 } 835 836 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 837 if (wiphy->rts_threshold > 255) { 838 netdev_dbg(vif->ndev, 839 "Setting WIPHY_PARAM_RTS_THRESHOLD %d\n", 840 wiphy->rts_threshold); 841 cfg_param_val.flag |= WILC_CFG_PARAM_RTS_THRESHOLD; 842 cfg_param_val.rts_threshold = wiphy->rts_threshold; 843 } else { 844 netdev_err(vif->ndev, "RTS threshold out of range\n"); 845 goto out; 846 } 847 } 848 849 ret = wilc_hif_set_cfg(vif, &cfg_param_val); 850 if (ret) 851 netdev_err(priv->dev, "Error in setting WIPHY PARAMS\n"); 852 853 out: 854 srcu_read_unlock(&wl->srcu, srcu_idx); 855 return ret; 856 } 857 858 static int set_pmksa(struct wiphy *wiphy, struct net_device *netdev, 859 struct cfg80211_pmksa *pmksa) 860 { 861 struct wilc_vif *vif = netdev_priv(netdev); 862 struct wilc_priv *priv = &vif->priv; 863 u32 i; 864 int ret = 0; 865 u8 flag = 0; 866 867 for (i = 0; i < priv->pmkid_list.numpmkid; i++) { 868 if (!memcmp(pmksa->bssid, priv->pmkid_list.pmkidlist[i].bssid, 869 ETH_ALEN)) { 870 flag = PMKID_FOUND; 871 break; 872 } 873 } 874 if (i < WILC_MAX_NUM_PMKIDS) { 875 memcpy(priv->pmkid_list.pmkidlist[i].bssid, pmksa->bssid, 876 ETH_ALEN); 877 memcpy(priv->pmkid_list.pmkidlist[i].pmkid, pmksa->pmkid, 878 WLAN_PMKID_LEN); 879 if (!(flag == PMKID_FOUND)) 880 priv->pmkid_list.numpmkid++; 881 } else { 882 netdev_err(netdev, "Invalid PMKID index\n"); 883 ret = -EINVAL; 884 } 885 886 if (!ret) 887 ret = wilc_set_pmkid_info(vif, &priv->pmkid_list); 888 889 return ret; 890 } 891 892 static int del_pmksa(struct wiphy *wiphy, struct net_device *netdev, 893 struct cfg80211_pmksa *pmksa) 894 { 895 u32 i; 896 struct wilc_vif *vif = netdev_priv(netdev); 897 struct wilc_priv *priv = &vif->priv; 898 899 for (i = 0; i < priv->pmkid_list.numpmkid; i++) { 900 if (!memcmp(pmksa->bssid, priv->pmkid_list.pmkidlist[i].bssid, 901 ETH_ALEN)) { 902 memset(&priv->pmkid_list.pmkidlist[i], 0, 903 sizeof(struct wilc_pmkid)); 904 break; 905 } 906 } 907 908 if (i == priv->pmkid_list.numpmkid) 909 return -EINVAL; 910 911 for (; i < (priv->pmkid_list.numpmkid - 1); i++) { 912 memcpy(priv->pmkid_list.pmkidlist[i].bssid, 913 priv->pmkid_list.pmkidlist[i + 1].bssid, 914 ETH_ALEN); 915 memcpy(priv->pmkid_list.pmkidlist[i].pmkid, 916 priv->pmkid_list.pmkidlist[i + 1].pmkid, 917 WLAN_PMKID_LEN); 918 } 919 priv->pmkid_list.numpmkid--; 920 921 return 0; 922 } 923 924 static int flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) 925 { 926 struct wilc_vif *vif = netdev_priv(netdev); 927 928 memset(&vif->priv.pmkid_list, 0, sizeof(struct wilc_pmkid_attr)); 929 930 return 0; 931 } 932 933 static inline void wilc_wfi_cfg_parse_ch_attr(u8 *buf, u32 len, u8 sta_ch) 934 { 935 struct wilc_attr_entry *e; 936 struct wilc_attr_ch_list *ch_list; 937 struct wilc_attr_oper_ch *op_ch; 938 u32 index = 0; 939 u8 ch_list_idx = 0; 940 u8 op_ch_idx = 0; 941 942 if (sta_ch == WILC_INVALID_CHANNEL) 943 return; 944 945 while (index + sizeof(*e) <= len) { 946 e = (struct wilc_attr_entry *)&buf[index]; 947 if (e->attr_type == IEEE80211_P2P_ATTR_CHANNEL_LIST) 948 ch_list_idx = index; 949 else if (e->attr_type == IEEE80211_P2P_ATTR_OPER_CHANNEL) 950 op_ch_idx = index; 951 if (ch_list_idx && op_ch_idx) 952 break; 953 index += le16_to_cpu(e->attr_len) + sizeof(*e); 954 } 955 956 if (ch_list_idx) { 957 u16 attr_size; 958 struct wilc_ch_list_elem *e; 959 int i; 960 961 ch_list = (struct wilc_attr_ch_list *)&buf[ch_list_idx]; 962 attr_size = le16_to_cpu(ch_list->attr_len); 963 for (i = 0; i < attr_size;) { 964 e = (struct wilc_ch_list_elem *)(ch_list->elem + i); 965 if (e->op_class == WILC_WLAN_OPERATING_CLASS_2_4GHZ) { 966 memset(e->ch_list, sta_ch, e->no_of_channels); 967 break; 968 } 969 i += e->no_of_channels; 970 } 971 } 972 973 if (op_ch_idx) { 974 op_ch = (struct wilc_attr_oper_ch *)&buf[op_ch_idx]; 975 op_ch->op_class = WILC_WLAN_OPERATING_CLASS_2_4GHZ; 976 op_ch->op_channel = sta_ch; 977 } 978 } 979 980 void wilc_wfi_p2p_rx(struct wilc_vif *vif, u8 *buff, u32 size) 981 { 982 struct wilc *wl = vif->wilc; 983 struct wilc_priv *priv = &vif->priv; 984 struct host_if_drv *wfi_drv = priv->hif_drv; 985 struct ieee80211_mgmt *mgmt; 986 struct wilc_vendor_specific_ie *p; 987 struct wilc_p2p_pub_act_frame *d; 988 int ie_offset = offsetof(struct ieee80211_mgmt, u) + sizeof(*d); 989 const u8 *vendor_ie; 990 u32 header, pkt_offset; 991 s32 freq; 992 993 header = get_unaligned_le32(buff - HOST_HDR_OFFSET); 994 pkt_offset = FIELD_GET(WILC_PKT_HDR_OFFSET_FIELD, header); 995 996 if (pkt_offset & IS_MANAGMEMENT_CALLBACK) { 997 bool ack = false; 998 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)buff; 999 1000 if (ieee80211_is_probe_resp(hdr->frame_control) || 1001 pkt_offset & IS_MGMT_STATUS_SUCCES) 1002 ack = true; 1003 1004 cfg80211_mgmt_tx_status(&priv->wdev, priv->tx_cookie, buff, 1005 size, ack, GFP_KERNEL); 1006 return; 1007 } 1008 1009 freq = ieee80211_channel_to_frequency(wl->op_ch, NL80211_BAND_2GHZ); 1010 1011 mgmt = (struct ieee80211_mgmt *)buff; 1012 if (!ieee80211_is_action(mgmt->frame_control)) 1013 goto out_rx_mgmt; 1014 1015 if (priv->cfg_scanning && 1016 time_after_eq(jiffies, (unsigned long)wfi_drv->p2p_timeout)) { 1017 netdev_dbg(vif->ndev, "Receiving action wrong ch\n"); 1018 return; 1019 } 1020 1021 if (!ieee80211_is_public_action((struct ieee80211_hdr *)buff, size)) 1022 goto out_rx_mgmt; 1023 1024 d = (struct wilc_p2p_pub_act_frame *)(&mgmt->u.action); 1025 if (d->oui_subtype != GO_NEG_REQ && d->oui_subtype != GO_NEG_RSP && 1026 d->oui_subtype != P2P_INV_REQ && d->oui_subtype != P2P_INV_RSP) 1027 goto out_rx_mgmt; 1028 1029 vendor_ie = cfg80211_find_vendor_ie(WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P, 1030 buff + ie_offset, size - ie_offset); 1031 if (!vendor_ie) 1032 goto out_rx_mgmt; 1033 1034 p = (struct wilc_vendor_specific_ie *)vendor_ie; 1035 wilc_wfi_cfg_parse_ch_attr(p->attr, p->tag_len - 4, vif->wilc->sta_ch); 1036 1037 out_rx_mgmt: 1038 cfg80211_rx_mgmt(&priv->wdev, freq, 0, buff, size, 0); 1039 } 1040 1041 static void wilc_wfi_mgmt_tx_complete(void *priv, int status) 1042 { 1043 struct wilc_p2p_mgmt_data *pv_data = priv; 1044 1045 kfree(pv_data->buff); 1046 kfree(pv_data); 1047 } 1048 1049 static void wilc_wfi_remain_on_channel_expired(void *data, u64 cookie) 1050 { 1051 struct wilc_vif *vif = data; 1052 struct wilc_priv *priv = &vif->priv; 1053 struct wilc_wfi_p2p_listen_params *params = &priv->remain_on_ch_params; 1054 1055 if (cookie != params->listen_cookie) 1056 return; 1057 1058 priv->p2p_listen_state = false; 1059 1060 cfg80211_remain_on_channel_expired(&priv->wdev, params->listen_cookie, 1061 params->listen_ch, GFP_KERNEL); 1062 } 1063 1064 static int remain_on_channel(struct wiphy *wiphy, 1065 struct wireless_dev *wdev, 1066 struct ieee80211_channel *chan, 1067 unsigned int duration, u64 *cookie) 1068 { 1069 int ret = 0; 1070 struct wilc_vif *vif = netdev_priv(wdev->netdev); 1071 struct wilc_priv *priv = &vif->priv; 1072 u64 id; 1073 1074 if (wdev->iftype == NL80211_IFTYPE_AP) { 1075 netdev_dbg(vif->ndev, "Required while in AP mode\n"); 1076 return ret; 1077 } 1078 1079 id = ++priv->inc_roc_cookie; 1080 if (id == 0) 1081 id = ++priv->inc_roc_cookie; 1082 1083 ret = wilc_remain_on_channel(vif, id, duration, chan->hw_value, 1084 wilc_wfi_remain_on_channel_expired, 1085 (void *)vif); 1086 if (ret) 1087 return ret; 1088 1089 vif->wilc->op_ch = chan->hw_value; 1090 1091 priv->remain_on_ch_params.listen_ch = chan; 1092 priv->remain_on_ch_params.listen_cookie = id; 1093 *cookie = id; 1094 priv->p2p_listen_state = true; 1095 priv->remain_on_ch_params.listen_duration = duration; 1096 1097 cfg80211_ready_on_channel(wdev, *cookie, chan, duration, GFP_KERNEL); 1098 mod_timer(&vif->hif_drv->remain_on_ch_timer, 1099 jiffies + msecs_to_jiffies(duration + 1000)); 1100 1101 return ret; 1102 } 1103 1104 static int cancel_remain_on_channel(struct wiphy *wiphy, 1105 struct wireless_dev *wdev, 1106 u64 cookie) 1107 { 1108 struct wilc_vif *vif = netdev_priv(wdev->netdev); 1109 struct wilc_priv *priv = &vif->priv; 1110 1111 if (cookie != priv->remain_on_ch_params.listen_cookie) 1112 return -ENOENT; 1113 1114 return wilc_listen_state_expired(vif, cookie); 1115 } 1116 1117 static int mgmt_tx(struct wiphy *wiphy, 1118 struct wireless_dev *wdev, 1119 struct cfg80211_mgmt_tx_params *params, 1120 u64 *cookie) 1121 { 1122 struct ieee80211_channel *chan = params->chan; 1123 unsigned int wait = params->wait; 1124 const u8 *buf = params->buf; 1125 size_t len = params->len; 1126 const struct ieee80211_mgmt *mgmt; 1127 struct wilc_p2p_mgmt_data *mgmt_tx; 1128 struct wilc_vif *vif = netdev_priv(wdev->netdev); 1129 struct wilc_priv *priv = &vif->priv; 1130 struct host_if_drv *wfi_drv = priv->hif_drv; 1131 struct wilc_vendor_specific_ie *p; 1132 struct wilc_p2p_pub_act_frame *d; 1133 int ie_offset = offsetof(struct ieee80211_mgmt, u) + sizeof(*d); 1134 const u8 *vendor_ie; 1135 int ret = 0; 1136 1137 *cookie = prandom_u32(); 1138 priv->tx_cookie = *cookie; 1139 mgmt = (const struct ieee80211_mgmt *)buf; 1140 1141 if (!ieee80211_is_mgmt(mgmt->frame_control)) 1142 goto out; 1143 1144 mgmt_tx = kmalloc(sizeof(*mgmt_tx), GFP_KERNEL); 1145 if (!mgmt_tx) { 1146 ret = -ENOMEM; 1147 goto out; 1148 } 1149 1150 mgmt_tx->buff = kmemdup(buf, len, GFP_KERNEL); 1151 if (!mgmt_tx->buff) { 1152 ret = -ENOMEM; 1153 kfree(mgmt_tx); 1154 goto out; 1155 } 1156 1157 mgmt_tx->size = len; 1158 1159 if (ieee80211_is_probe_resp(mgmt->frame_control)) { 1160 wilc_set_mac_chnl_num(vif, chan->hw_value); 1161 vif->wilc->op_ch = chan->hw_value; 1162 goto out_txq_add_pkt; 1163 } 1164 1165 if (!ieee80211_is_public_action((struct ieee80211_hdr *)buf, len)) 1166 goto out_set_timeout; 1167 1168 d = (struct wilc_p2p_pub_act_frame *)(&mgmt->u.action); 1169 if (d->oui_type != WLAN_OUI_TYPE_WFA_P2P || 1170 d->oui_subtype != GO_NEG_CONF) { 1171 wilc_set_mac_chnl_num(vif, chan->hw_value); 1172 vif->wilc->op_ch = chan->hw_value; 1173 } 1174 1175 if (d->oui_subtype != P2P_INV_REQ && d->oui_subtype != P2P_INV_RSP) 1176 goto out_set_timeout; 1177 1178 vendor_ie = cfg80211_find_vendor_ie(WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P, 1179 mgmt_tx->buff + ie_offset, 1180 len - ie_offset); 1181 if (!vendor_ie) 1182 goto out_set_timeout; 1183 1184 p = (struct wilc_vendor_specific_ie *)vendor_ie; 1185 wilc_wfi_cfg_parse_ch_attr(p->attr, p->tag_len - 4, vif->wilc->sta_ch); 1186 1187 out_set_timeout: 1188 wfi_drv->p2p_timeout = (jiffies + msecs_to_jiffies(wait)); 1189 1190 out_txq_add_pkt: 1191 1192 wilc_wlan_txq_add_mgmt_pkt(wdev->netdev, mgmt_tx, 1193 mgmt_tx->buff, mgmt_tx->size, 1194 wilc_wfi_mgmt_tx_complete); 1195 1196 out: 1197 1198 return ret; 1199 } 1200 1201 static int mgmt_tx_cancel_wait(struct wiphy *wiphy, 1202 struct wireless_dev *wdev, 1203 u64 cookie) 1204 { 1205 struct wilc_vif *vif = netdev_priv(wdev->netdev); 1206 struct wilc_priv *priv = &vif->priv; 1207 struct host_if_drv *wfi_drv = priv->hif_drv; 1208 1209 wfi_drv->p2p_timeout = jiffies; 1210 1211 if (!priv->p2p_listen_state) { 1212 struct wilc_wfi_p2p_listen_params *params; 1213 1214 params = &priv->remain_on_ch_params; 1215 1216 cfg80211_remain_on_channel_expired(wdev, 1217 params->listen_cookie, 1218 params->listen_ch, 1219 GFP_KERNEL); 1220 } 1221 1222 return 0; 1223 } 1224 1225 void wilc_update_mgmt_frame_registrations(struct wiphy *wiphy, 1226 struct wireless_dev *wdev, 1227 struct mgmt_frame_regs *upd) 1228 { 1229 struct wilc *wl = wiphy_priv(wiphy); 1230 struct wilc_vif *vif = netdev_priv(wdev->netdev); 1231 u32 presp_bit = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 1232 u32 action_bit = BIT(IEEE80211_STYPE_ACTION >> 4); 1233 1234 if (wl->initialized) { 1235 bool prev = vif->mgmt_reg_stypes & presp_bit; 1236 bool now = upd->interface_stypes & presp_bit; 1237 1238 if (now != prev) 1239 wilc_frame_register(vif, IEEE80211_STYPE_PROBE_REQ, now); 1240 1241 prev = vif->mgmt_reg_stypes & action_bit; 1242 now = upd->interface_stypes & action_bit; 1243 1244 if (now != prev) 1245 wilc_frame_register(vif, IEEE80211_STYPE_ACTION, now); 1246 } 1247 1248 vif->mgmt_reg_stypes = 1249 upd->interface_stypes & (presp_bit | action_bit); 1250 } 1251 1252 static int set_cqm_rssi_config(struct wiphy *wiphy, struct net_device *dev, 1253 s32 rssi_thold, u32 rssi_hyst) 1254 { 1255 return 0; 1256 } 1257 1258 static int dump_station(struct wiphy *wiphy, struct net_device *dev, 1259 int idx, u8 *mac, struct station_info *sinfo) 1260 { 1261 struct wilc_vif *vif = netdev_priv(dev); 1262 int ret; 1263 1264 if (idx != 0) 1265 return -ENOENT; 1266 1267 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL); 1268 1269 ret = wilc_get_rssi(vif, &sinfo->signal); 1270 if (ret) 1271 return ret; 1272 1273 memcpy(mac, vif->priv.associated_bss, ETH_ALEN); 1274 return 0; 1275 } 1276 1277 static int set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 1278 bool enabled, int timeout) 1279 { 1280 struct wilc_vif *vif = netdev_priv(dev); 1281 struct wilc_priv *priv = &vif->priv; 1282 1283 if (!priv->hif_drv) 1284 return -EIO; 1285 1286 wilc_set_power_mgmt(vif, enabled, timeout); 1287 1288 return 0; 1289 } 1290 1291 static int change_virtual_intf(struct wiphy *wiphy, struct net_device *dev, 1292 enum nl80211_iftype type, 1293 struct vif_params *params) 1294 { 1295 struct wilc *wl = wiphy_priv(wiphy); 1296 struct wilc_vif *vif = netdev_priv(dev); 1297 struct wilc_priv *priv = &vif->priv; 1298 1299 switch (type) { 1300 case NL80211_IFTYPE_STATION: 1301 vif->connecting = false; 1302 dev->ieee80211_ptr->iftype = type; 1303 priv->wdev.iftype = type; 1304 vif->monitor_flag = 0; 1305 if (vif->iftype == WILC_AP_MODE || vif->iftype == WILC_GO_MODE) 1306 wilc_wfi_deinit_mon_interface(wl, true); 1307 vif->iftype = WILC_STATION_MODE; 1308 1309 if (wl->initialized) 1310 wilc_set_operation_mode(vif, wilc_get_vif_idx(vif), 1311 WILC_STATION_MODE, vif->idx); 1312 1313 memset(priv->assoc_stainfo.sta_associated_bss, 0, 1314 WILC_MAX_NUM_STA * ETH_ALEN); 1315 break; 1316 1317 case NL80211_IFTYPE_P2P_CLIENT: 1318 vif->connecting = false; 1319 dev->ieee80211_ptr->iftype = type; 1320 priv->wdev.iftype = type; 1321 vif->monitor_flag = 0; 1322 vif->iftype = WILC_CLIENT_MODE; 1323 1324 if (wl->initialized) 1325 wilc_set_operation_mode(vif, wilc_get_vif_idx(vif), 1326 WILC_STATION_MODE, vif->idx); 1327 break; 1328 1329 case NL80211_IFTYPE_AP: 1330 dev->ieee80211_ptr->iftype = type; 1331 priv->wdev.iftype = type; 1332 vif->iftype = WILC_AP_MODE; 1333 1334 if (wl->initialized) 1335 wilc_set_operation_mode(vif, wilc_get_vif_idx(vif), 1336 WILC_AP_MODE, vif->idx); 1337 break; 1338 1339 case NL80211_IFTYPE_P2P_GO: 1340 dev->ieee80211_ptr->iftype = type; 1341 priv->wdev.iftype = type; 1342 vif->iftype = WILC_GO_MODE; 1343 1344 if (wl->initialized) 1345 wilc_set_operation_mode(vif, wilc_get_vif_idx(vif), 1346 WILC_AP_MODE, vif->idx); 1347 break; 1348 1349 default: 1350 netdev_err(dev, "Unknown interface type= %d\n", type); 1351 return -EINVAL; 1352 } 1353 1354 return 0; 1355 } 1356 1357 static int start_ap(struct wiphy *wiphy, struct net_device *dev, 1358 struct cfg80211_ap_settings *settings) 1359 { 1360 struct wilc_vif *vif = netdev_priv(dev); 1361 int ret; 1362 1363 ret = set_channel(wiphy, &settings->chandef); 1364 if (ret != 0) 1365 netdev_err(dev, "Error in setting channel\n"); 1366 1367 wilc_wlan_set_bssid(dev, dev->dev_addr, WILC_AP_MODE); 1368 1369 return wilc_add_beacon(vif, settings->beacon_interval, 1370 settings->dtim_period, &settings->beacon); 1371 } 1372 1373 static int change_beacon(struct wiphy *wiphy, struct net_device *dev, 1374 struct cfg80211_beacon_data *beacon) 1375 { 1376 struct wilc_vif *vif = netdev_priv(dev); 1377 1378 return wilc_add_beacon(vif, 0, 0, beacon); 1379 } 1380 1381 static int stop_ap(struct wiphy *wiphy, struct net_device *dev) 1382 { 1383 int ret; 1384 struct wilc_vif *vif = netdev_priv(dev); 1385 1386 wilc_wlan_set_bssid(dev, NULL, WILC_AP_MODE); 1387 1388 ret = wilc_del_beacon(vif); 1389 1390 if (ret) 1391 netdev_err(dev, "Host delete beacon fail\n"); 1392 1393 return ret; 1394 } 1395 1396 static int add_station(struct wiphy *wiphy, struct net_device *dev, 1397 const u8 *mac, struct station_parameters *params) 1398 { 1399 int ret = 0; 1400 struct wilc_vif *vif = netdev_priv(dev); 1401 struct wilc_priv *priv = &vif->priv; 1402 1403 if (vif->iftype == WILC_AP_MODE || vif->iftype == WILC_GO_MODE) { 1404 memcpy(priv->assoc_stainfo.sta_associated_bss[params->aid], mac, 1405 ETH_ALEN); 1406 1407 ret = wilc_add_station(vif, mac, params); 1408 if (ret) 1409 netdev_err(dev, "Host add station fail\n"); 1410 } 1411 1412 return ret; 1413 } 1414 1415 static int del_station(struct wiphy *wiphy, struct net_device *dev, 1416 struct station_del_parameters *params) 1417 { 1418 const u8 *mac = params->mac; 1419 int ret = 0; 1420 struct wilc_vif *vif = netdev_priv(dev); 1421 struct wilc_priv *priv = &vif->priv; 1422 struct sta_info *info; 1423 1424 if (!(vif->iftype == WILC_AP_MODE || vif->iftype == WILC_GO_MODE)) 1425 return ret; 1426 1427 info = &priv->assoc_stainfo; 1428 1429 if (!mac) 1430 ret = wilc_del_allstation(vif, info->sta_associated_bss); 1431 1432 ret = wilc_del_station(vif, mac); 1433 if (ret) 1434 netdev_err(dev, "Host delete station fail\n"); 1435 return ret; 1436 } 1437 1438 static int change_station(struct wiphy *wiphy, struct net_device *dev, 1439 const u8 *mac, struct station_parameters *params) 1440 { 1441 int ret = 0; 1442 struct wilc_vif *vif = netdev_priv(dev); 1443 1444 if (vif->iftype == WILC_AP_MODE || vif->iftype == WILC_GO_MODE) { 1445 ret = wilc_edit_station(vif, mac, params); 1446 if (ret) 1447 netdev_err(dev, "Host edit station fail\n"); 1448 } 1449 return ret; 1450 } 1451 1452 static struct wilc_vif *wilc_get_vif_from_type(struct wilc *wl, int type) 1453 { 1454 struct wilc_vif *vif; 1455 1456 list_for_each_entry_rcu(vif, &wl->vif_list, list) { 1457 if (vif->iftype == type) 1458 return vif; 1459 } 1460 1461 return NULL; 1462 } 1463 1464 static struct wireless_dev *add_virtual_intf(struct wiphy *wiphy, 1465 const char *name, 1466 unsigned char name_assign_type, 1467 enum nl80211_iftype type, 1468 struct vif_params *params) 1469 { 1470 struct wilc *wl = wiphy_priv(wiphy); 1471 struct wilc_vif *vif; 1472 struct wireless_dev *wdev; 1473 int iftype; 1474 1475 if (type == NL80211_IFTYPE_MONITOR) { 1476 struct net_device *ndev; 1477 int srcu_idx; 1478 1479 srcu_idx = srcu_read_lock(&wl->srcu); 1480 vif = wilc_get_vif_from_type(wl, WILC_AP_MODE); 1481 if (!vif) { 1482 vif = wilc_get_vif_from_type(wl, WILC_GO_MODE); 1483 if (!vif) { 1484 srcu_read_unlock(&wl->srcu, srcu_idx); 1485 goto validate_interface; 1486 } 1487 } 1488 1489 if (vif->monitor_flag) { 1490 srcu_read_unlock(&wl->srcu, srcu_idx); 1491 goto validate_interface; 1492 } 1493 1494 ndev = wilc_wfi_init_mon_interface(wl, name, vif->ndev); 1495 if (ndev) { 1496 vif->monitor_flag = 1; 1497 } else { 1498 srcu_read_unlock(&wl->srcu, srcu_idx); 1499 return ERR_PTR(-EINVAL); 1500 } 1501 1502 wdev = &vif->priv.wdev; 1503 srcu_read_unlock(&wl->srcu, srcu_idx); 1504 return wdev; 1505 } 1506 1507 validate_interface: 1508 mutex_lock(&wl->vif_mutex); 1509 if (wl->vif_num == WILC_NUM_CONCURRENT_IFC) { 1510 pr_err("Reached maximum number of interface\n"); 1511 mutex_unlock(&wl->vif_mutex); 1512 return ERR_PTR(-EINVAL); 1513 } 1514 mutex_unlock(&wl->vif_mutex); 1515 1516 switch (type) { 1517 case NL80211_IFTYPE_STATION: 1518 iftype = WILC_STATION_MODE; 1519 break; 1520 case NL80211_IFTYPE_AP: 1521 iftype = WILC_AP_MODE; 1522 break; 1523 default: 1524 return ERR_PTR(-EOPNOTSUPP); 1525 } 1526 1527 vif = wilc_netdev_ifc_init(wl, name, iftype, type, true); 1528 if (IS_ERR(vif)) 1529 return ERR_CAST(vif); 1530 1531 return &vif->priv.wdev; 1532 } 1533 1534 static int del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) 1535 { 1536 struct wilc *wl = wiphy_priv(wiphy); 1537 struct wilc_vif *vif; 1538 1539 if (wdev->iftype == NL80211_IFTYPE_AP || 1540 wdev->iftype == NL80211_IFTYPE_P2P_GO) 1541 wilc_wfi_deinit_mon_interface(wl, true); 1542 vif = netdev_priv(wdev->netdev); 1543 cfg80211_stop_iface(wiphy, wdev, GFP_KERNEL); 1544 cfg80211_unregister_netdevice(vif->ndev); 1545 vif->monitor_flag = 0; 1546 1547 wilc_set_operation_mode(vif, 0, 0, 0); 1548 mutex_lock(&wl->vif_mutex); 1549 list_del_rcu(&vif->list); 1550 wl->vif_num--; 1551 mutex_unlock(&wl->vif_mutex); 1552 synchronize_srcu(&wl->srcu); 1553 return 0; 1554 } 1555 1556 static int wilc_suspend(struct wiphy *wiphy, struct cfg80211_wowlan *wow) 1557 { 1558 struct wilc *wl = wiphy_priv(wiphy); 1559 1560 if (!wow && wilc_wlan_get_num_conn_ifcs(wl)) 1561 wl->suspend_event = true; 1562 else 1563 wl->suspend_event = false; 1564 1565 return 0; 1566 } 1567 1568 static int wilc_resume(struct wiphy *wiphy) 1569 { 1570 return 0; 1571 } 1572 1573 static void wilc_set_wakeup(struct wiphy *wiphy, bool enabled) 1574 { 1575 struct wilc *wl = wiphy_priv(wiphy); 1576 struct wilc_vif *vif; 1577 int srcu_idx; 1578 1579 srcu_idx = srcu_read_lock(&wl->srcu); 1580 vif = wilc_get_wl_to_vif(wl); 1581 if (IS_ERR(vif)) { 1582 srcu_read_unlock(&wl->srcu, srcu_idx); 1583 return; 1584 } 1585 1586 netdev_info(vif->ndev, "cfg set wake up = %d\n", enabled); 1587 wilc_set_wowlan_trigger(vif, enabled); 1588 srcu_read_unlock(&wl->srcu, srcu_idx); 1589 } 1590 1591 static int set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, 1592 enum nl80211_tx_power_setting type, int mbm) 1593 { 1594 int ret; 1595 int srcu_idx; 1596 s32 tx_power = MBM_TO_DBM(mbm); 1597 struct wilc *wl = wiphy_priv(wiphy); 1598 struct wilc_vif *vif; 1599 1600 if (!wl->initialized) 1601 return -EIO; 1602 1603 srcu_idx = srcu_read_lock(&wl->srcu); 1604 vif = wilc_get_wl_to_vif(wl); 1605 if (IS_ERR(vif)) { 1606 srcu_read_unlock(&wl->srcu, srcu_idx); 1607 return -EINVAL; 1608 } 1609 1610 netdev_info(vif->ndev, "Setting tx power %d\n", tx_power); 1611 if (tx_power < 0) 1612 tx_power = 0; 1613 else if (tx_power > 18) 1614 tx_power = 18; 1615 ret = wilc_set_tx_power(vif, tx_power); 1616 if (ret) 1617 netdev_err(vif->ndev, "Failed to set tx power\n"); 1618 srcu_read_unlock(&wl->srcu, srcu_idx); 1619 1620 return ret; 1621 } 1622 1623 static int get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, 1624 int *dbm) 1625 { 1626 int ret; 1627 struct wilc_vif *vif = netdev_priv(wdev->netdev); 1628 struct wilc *wl = vif->wilc; 1629 1630 /* If firmware is not started, return. */ 1631 if (!wl->initialized) 1632 return -EIO; 1633 1634 ret = wilc_get_tx_power(vif, (u8 *)dbm); 1635 if (ret) 1636 netdev_err(vif->ndev, "Failed to get tx power\n"); 1637 1638 return ret; 1639 } 1640 1641 static const struct cfg80211_ops wilc_cfg80211_ops = { 1642 .set_monitor_channel = set_channel, 1643 .scan = scan, 1644 .connect = connect, 1645 .disconnect = disconnect, 1646 .add_key = add_key, 1647 .del_key = del_key, 1648 .get_key = get_key, 1649 .set_default_key = set_default_key, 1650 .add_virtual_intf = add_virtual_intf, 1651 .del_virtual_intf = del_virtual_intf, 1652 .change_virtual_intf = change_virtual_intf, 1653 1654 .start_ap = start_ap, 1655 .change_beacon = change_beacon, 1656 .stop_ap = stop_ap, 1657 .add_station = add_station, 1658 .del_station = del_station, 1659 .change_station = change_station, 1660 .get_station = get_station, 1661 .dump_station = dump_station, 1662 .change_bss = change_bss, 1663 .set_wiphy_params = set_wiphy_params, 1664 1665 .set_pmksa = set_pmksa, 1666 .del_pmksa = del_pmksa, 1667 .flush_pmksa = flush_pmksa, 1668 .remain_on_channel = remain_on_channel, 1669 .cancel_remain_on_channel = cancel_remain_on_channel, 1670 .mgmt_tx_cancel_wait = mgmt_tx_cancel_wait, 1671 .mgmt_tx = mgmt_tx, 1672 .update_mgmt_frame_registrations = wilc_update_mgmt_frame_registrations, 1673 .set_power_mgmt = set_power_mgmt, 1674 .set_cqm_rssi_config = set_cqm_rssi_config, 1675 1676 .suspend = wilc_suspend, 1677 .resume = wilc_resume, 1678 .set_wakeup = wilc_set_wakeup, 1679 .set_tx_power = set_tx_power, 1680 .get_tx_power = get_tx_power, 1681 1682 }; 1683 1684 static void wlan_init_locks(struct wilc *wl) 1685 { 1686 mutex_init(&wl->hif_cs); 1687 mutex_init(&wl->rxq_cs); 1688 mutex_init(&wl->cfg_cmd_lock); 1689 mutex_init(&wl->vif_mutex); 1690 mutex_init(&wl->deinit_lock); 1691 1692 spin_lock_init(&wl->txq_spinlock); 1693 mutex_init(&wl->txq_add_to_head_cs); 1694 1695 init_completion(&wl->txq_event); 1696 init_completion(&wl->cfg_event); 1697 init_completion(&wl->sync_event); 1698 init_completion(&wl->txq_thread_started); 1699 init_srcu_struct(&wl->srcu); 1700 } 1701 1702 void wlan_deinit_locks(struct wilc *wilc) 1703 { 1704 mutex_destroy(&wilc->hif_cs); 1705 mutex_destroy(&wilc->rxq_cs); 1706 mutex_destroy(&wilc->cfg_cmd_lock); 1707 mutex_destroy(&wilc->txq_add_to_head_cs); 1708 mutex_destroy(&wilc->vif_mutex); 1709 mutex_destroy(&wilc->deinit_lock); 1710 cleanup_srcu_struct(&wilc->srcu); 1711 } 1712 1713 int wilc_cfg80211_init(struct wilc **wilc, struct device *dev, int io_type, 1714 const struct wilc_hif_func *ops) 1715 { 1716 struct wilc *wl; 1717 struct wilc_vif *vif; 1718 int ret, i; 1719 1720 wl = wilc_create_wiphy(dev); 1721 if (!wl) 1722 return -EINVAL; 1723 1724 wlan_init_locks(wl); 1725 1726 ret = wilc_wlan_cfg_init(wl); 1727 if (ret) 1728 goto free_wl; 1729 1730 *wilc = wl; 1731 wl->io_type = io_type; 1732 wl->hif_func = ops; 1733 1734 for (i = 0; i < NQUEUES; i++) 1735 INIT_LIST_HEAD(&wl->txq[i].txq_head.list); 1736 1737 INIT_LIST_HEAD(&wl->rxq_head.list); 1738 INIT_LIST_HEAD(&wl->vif_list); 1739 1740 vif = wilc_netdev_ifc_init(wl, "wlan%d", WILC_STATION_MODE, 1741 NL80211_IFTYPE_STATION, false); 1742 if (IS_ERR(vif)) { 1743 ret = PTR_ERR(vif); 1744 goto free_cfg; 1745 } 1746 1747 return 0; 1748 1749 free_cfg: 1750 wilc_wlan_cfg_deinit(wl); 1751 1752 free_wl: 1753 wlan_deinit_locks(wl); 1754 wiphy_unregister(wl->wiphy); 1755 wiphy_free(wl->wiphy); 1756 return ret; 1757 } 1758 EXPORT_SYMBOL_GPL(wilc_cfg80211_init); 1759 1760 struct wilc *wilc_create_wiphy(struct device *dev) 1761 { 1762 struct wiphy *wiphy; 1763 struct wilc *wl; 1764 int ret; 1765 1766 wiphy = wiphy_new(&wilc_cfg80211_ops, sizeof(*wl)); 1767 if (!wiphy) 1768 return NULL; 1769 1770 wl = wiphy_priv(wiphy); 1771 1772 memcpy(wl->bitrates, wilc_bitrates, sizeof(wilc_bitrates)); 1773 memcpy(wl->channels, wilc_2ghz_channels, sizeof(wilc_2ghz_channels)); 1774 wl->band.bitrates = wl->bitrates; 1775 wl->band.n_bitrates = ARRAY_SIZE(wl->bitrates); 1776 wl->band.channels = wl->channels; 1777 wl->band.n_channels = ARRAY_SIZE(wilc_2ghz_channels); 1778 1779 wl->band.ht_cap.ht_supported = 1; 1780 wl->band.ht_cap.cap |= (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT); 1781 wl->band.ht_cap.mcs.rx_mask[0] = 0xff; 1782 wl->band.ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K; 1783 wl->band.ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; 1784 1785 wiphy->bands[NL80211_BAND_2GHZ] = &wl->band; 1786 1787 wiphy->max_scan_ssids = WILC_MAX_NUM_PROBED_SSID; 1788 #ifdef CONFIG_PM 1789 wiphy->wowlan = &wowlan_support; 1790 #endif 1791 wiphy->max_num_pmkids = WILC_MAX_NUM_PMKIDS; 1792 wiphy->max_scan_ie_len = 1000; 1793 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 1794 memcpy(wl->cipher_suites, wilc_cipher_suites, 1795 sizeof(wilc_cipher_suites)); 1796 wiphy->cipher_suites = wl->cipher_suites; 1797 wiphy->n_cipher_suites = ARRAY_SIZE(wilc_cipher_suites); 1798 wiphy->mgmt_stypes = wilc_wfi_cfg80211_mgmt_types; 1799 1800 wiphy->max_remain_on_channel_duration = 500; 1801 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 1802 BIT(NL80211_IFTYPE_AP) | 1803 BIT(NL80211_IFTYPE_MONITOR) | 1804 BIT(NL80211_IFTYPE_P2P_GO) | 1805 BIT(NL80211_IFTYPE_P2P_CLIENT); 1806 wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; 1807 1808 set_wiphy_dev(wiphy, dev); 1809 wl->wiphy = wiphy; 1810 ret = wiphy_register(wiphy); 1811 if (ret) { 1812 wiphy_free(wiphy); 1813 return NULL; 1814 } 1815 return wl; 1816 } 1817 1818 int wilc_init_host_int(struct net_device *net) 1819 { 1820 int ret; 1821 struct wilc_vif *vif = netdev_priv(net); 1822 struct wilc_priv *priv = &vif->priv; 1823 1824 priv->p2p_listen_state = false; 1825 1826 mutex_init(&priv->scan_req_lock); 1827 ret = wilc_init(net, &priv->hif_drv); 1828 if (ret) 1829 netdev_err(net, "Error while initializing hostinterface\n"); 1830 1831 return ret; 1832 } 1833 1834 void wilc_deinit_host_int(struct net_device *net) 1835 { 1836 int ret; 1837 struct wilc_vif *vif = netdev_priv(net); 1838 struct wilc_priv *priv = &vif->priv; 1839 1840 priv->p2p_listen_state = false; 1841 1842 flush_workqueue(vif->wilc->hif_workqueue); 1843 mutex_destroy(&priv->scan_req_lock); 1844 ret = wilc_deinit(vif); 1845 1846 if (ret) 1847 netdev_err(net, "Error while deinitializing host interface\n"); 1848 } 1849 1850