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 20static 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 50static const struct wiphy_wowlan_support wowlan_support = { 51 .flags = WIPHY_WOWLAN_ANY 52}; 53#endif 54 55struct wilc_p2p_mgmt_data { 56 int size; 57 u8 *buff; 58}; 59 60struct 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 70struct 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 78struct wilc_attr_entry { 79 u8 attr_type; 80 __le16 attr_len; 81 u8 val[]; 82} __packed; 83 84struct 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 92struct 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 99struct wilc_ch_list_elem { 100 u8 op_class; 101 u8 no_of_channels; 102 u8 ch_list[]; 103} __packed; 104 105static 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 162static 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 222struct 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 233static 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 260static 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 299static 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 446out_put_bss: 447 cfg80211_put_bss(wiphy, bss); 448 449out_error: 450 vif->connecting = false; 451 return ret; 452} 453 454static 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 490static 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 498static 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 517static 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 542static 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 652static 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 689static 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 716static 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 726static 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 u32 i = 0; 732 u32 associatedsta = ~0; 733 u32 inactive_time = 0; 734 735 if (vif->iftype == WILC_AP_MODE || vif->iftype == WILC_GO_MODE) { 736 for (i = 0; i < NUM_STA_ASSOCIATED; i++) { 737 if (!(memcmp(mac, 738 priv->assoc_stainfo.sta_associated_bss[i], 739 ETH_ALEN))) { 740 associatedsta = i; 741 break; 742 } 743 } 744 745 if (associatedsta == ~0) { 746 netdev_err(dev, "sta required is not associated\n"); 747 return -ENOENT; 748 } 749 750 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_INACTIVE_TIME); 751 752 wilc_get_inactive_time(vif, mac, &inactive_time); 753 sinfo->inactive_time = 1000 * inactive_time; 754 } else if (vif->iftype == WILC_STATION_MODE) { 755 struct rf_info stats; 756 757 wilc_get_statistics(vif, &stats); 758 759 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL) | 760 BIT_ULL(NL80211_STA_INFO_RX_PACKETS) | 761 BIT_ULL(NL80211_STA_INFO_TX_PACKETS) | 762 BIT_ULL(NL80211_STA_INFO_TX_FAILED) | 763 BIT_ULL(NL80211_STA_INFO_TX_BITRATE); 764 765 sinfo->signal = stats.rssi; 766 sinfo->rx_packets = stats.rx_cnt; 767 sinfo->tx_packets = stats.tx_cnt + stats.tx_fail_cnt; 768 sinfo->tx_failed = stats.tx_fail_cnt; 769 sinfo->txrate.legacy = stats.link_speed * 10; 770 771 if (stats.link_speed > TCP_ACK_FILTER_LINK_SPEED_THRESH && 772 stats.link_speed != DEFAULT_LINK_SPEED) 773 wilc_enable_tcp_ack_filter(vif, true); 774 else if (stats.link_speed != DEFAULT_LINK_SPEED) 775 wilc_enable_tcp_ack_filter(vif, false); 776 } 777 return 0; 778} 779 780static int change_bss(struct wiphy *wiphy, struct net_device *dev, 781 struct bss_parameters *params) 782{ 783 return 0; 784} 785 786static int set_wiphy_params(struct wiphy *wiphy, u32 changed) 787{ 788 int ret = -EINVAL; 789 struct cfg_param_attr cfg_param_val; 790 struct wilc *wl = wiphy_priv(wiphy); 791 struct wilc_vif *vif; 792 struct wilc_priv *priv; 793 int srcu_idx; 794 795 srcu_idx = srcu_read_lock(&wl->srcu); 796 vif = wilc_get_wl_to_vif(wl); 797 if (IS_ERR(vif)) 798 goto out; 799 800 priv = &vif->priv; 801 cfg_param_val.flag = 0; 802 803 if (changed & WIPHY_PARAM_RETRY_SHORT) { 804 netdev_dbg(vif->ndev, 805 "Setting WIPHY_PARAM_RETRY_SHORT %d\n", 806 wiphy->retry_short); 807 cfg_param_val.flag |= WILC_CFG_PARAM_RETRY_SHORT; 808 cfg_param_val.short_retry_limit = wiphy->retry_short; 809 } 810 if (changed & WIPHY_PARAM_RETRY_LONG) { 811 netdev_dbg(vif->ndev, 812 "Setting WIPHY_PARAM_RETRY_LONG %d\n", 813 wiphy->retry_long); 814 cfg_param_val.flag |= WILC_CFG_PARAM_RETRY_LONG; 815 cfg_param_val.long_retry_limit = wiphy->retry_long; 816 } 817 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { 818 if (wiphy->frag_threshold > 255 && 819 wiphy->frag_threshold < 7937) { 820 netdev_dbg(vif->ndev, 821 "Setting WIPHY_PARAM_FRAG_THRESHOLD %d\n", 822 wiphy->frag_threshold); 823 cfg_param_val.flag |= WILC_CFG_PARAM_FRAG_THRESHOLD; 824 cfg_param_val.frag_threshold = wiphy->frag_threshold; 825 } else { 826 netdev_err(vif->ndev, 827 "Fragmentation threshold out of range\n"); 828 goto out; 829 } 830 } 831 832 if (changed & WIPHY_PARAM_RTS_THRESHOLD) { 833 if (wiphy->rts_threshold > 255) { 834 netdev_dbg(vif->ndev, 835 "Setting WIPHY_PARAM_RTS_THRESHOLD %d\n", 836 wiphy->rts_threshold); 837 cfg_param_val.flag |= WILC_CFG_PARAM_RTS_THRESHOLD; 838 cfg_param_val.rts_threshold = wiphy->rts_threshold; 839 } else { 840 netdev_err(vif->ndev, "RTS threshold out of range\n"); 841 goto out; 842 } 843 } 844 845 ret = wilc_hif_set_cfg(vif, &cfg_param_val); 846 if (ret) 847 netdev_err(priv->dev, "Error in setting WIPHY PARAMS\n"); 848 849out: 850 srcu_read_unlock(&wl->srcu, srcu_idx); 851 return ret; 852} 853 854static int set_pmksa(struct wiphy *wiphy, struct net_device *netdev, 855 struct cfg80211_pmksa *pmksa) 856{ 857 struct wilc_vif *vif = netdev_priv(netdev); 858 struct wilc_priv *priv = &vif->priv; 859 u32 i; 860 int ret = 0; 861 u8 flag = 0; 862 863 for (i = 0; i < priv->pmkid_list.numpmkid; i++) { 864 if (!memcmp(pmksa->bssid, priv->pmkid_list.pmkidlist[i].bssid, 865 ETH_ALEN)) { 866 flag = PMKID_FOUND; 867 break; 868 } 869 } 870 if (i < WILC_MAX_NUM_PMKIDS) { 871 memcpy(priv->pmkid_list.pmkidlist[i].bssid, pmksa->bssid, 872 ETH_ALEN); 873 memcpy(priv->pmkid_list.pmkidlist[i].pmkid, pmksa->pmkid, 874 WLAN_PMKID_LEN); 875 if (!(flag == PMKID_FOUND)) 876 priv->pmkid_list.numpmkid++; 877 } else { 878 netdev_err(netdev, "Invalid PMKID index\n"); 879 ret = -EINVAL; 880 } 881 882 if (!ret) 883 ret = wilc_set_pmkid_info(vif, &priv->pmkid_list); 884 885 return ret; 886} 887 888static int del_pmksa(struct wiphy *wiphy, struct net_device *netdev, 889 struct cfg80211_pmksa *pmksa) 890{ 891 u32 i; 892 struct wilc_vif *vif = netdev_priv(netdev); 893 struct wilc_priv *priv = &vif->priv; 894 895 for (i = 0; i < priv->pmkid_list.numpmkid; i++) { 896 if (!memcmp(pmksa->bssid, priv->pmkid_list.pmkidlist[i].bssid, 897 ETH_ALEN)) { 898 memset(&priv->pmkid_list.pmkidlist[i], 0, 899 sizeof(struct wilc_pmkid)); 900 break; 901 } 902 } 903 904 if (i == priv->pmkid_list.numpmkid) 905 return -EINVAL; 906 907 for (; i < (priv->pmkid_list.numpmkid - 1); i++) { 908 memcpy(priv->pmkid_list.pmkidlist[i].bssid, 909 priv->pmkid_list.pmkidlist[i + 1].bssid, 910 ETH_ALEN); 911 memcpy(priv->pmkid_list.pmkidlist[i].pmkid, 912 priv->pmkid_list.pmkidlist[i + 1].pmkid, 913 WLAN_PMKID_LEN); 914 } 915 priv->pmkid_list.numpmkid--; 916 917 return 0; 918} 919 920static int flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) 921{ 922 struct wilc_vif *vif = netdev_priv(netdev); 923 924 memset(&vif->priv.pmkid_list, 0, sizeof(struct wilc_pmkid_attr)); 925 926 return 0; 927} 928 929static inline void wilc_wfi_cfg_parse_ch_attr(u8 *buf, u32 len, u8 sta_ch) 930{ 931 struct wilc_attr_entry *e; 932 struct wilc_attr_ch_list *ch_list; 933 struct wilc_attr_oper_ch *op_ch; 934 u32 index = 0; 935 u8 ch_list_idx = 0; 936 u8 op_ch_idx = 0; 937 938 if (sta_ch == WILC_INVALID_CHANNEL) 939 return; 940 941 while (index + sizeof(*e) <= len) { 942 u16 attr_size; 943 944 e = (struct wilc_attr_entry *)&buf[index]; 945 attr_size = le16_to_cpu(e->attr_len); 946 947 if (index + sizeof(*e) + attr_size > len) 948 return; 949 950 if (e->attr_type == IEEE80211_P2P_ATTR_CHANNEL_LIST && 951 attr_size >= (sizeof(struct wilc_attr_ch_list) - sizeof(*e))) 952 ch_list_idx = index; 953 else if (e->attr_type == IEEE80211_P2P_ATTR_OPER_CHANNEL && 954 attr_size == (sizeof(struct wilc_attr_oper_ch) - sizeof(*e))) 955 op_ch_idx = index; 956 957 if (ch_list_idx && op_ch_idx) 958 break; 959 960 index += sizeof(*e) + attr_size; 961 } 962 963 if (ch_list_idx) { 964 unsigned int i; 965 u16 elem_size; 966 967 ch_list = (struct wilc_attr_ch_list *)&buf[ch_list_idx]; 968 /* the number of bytes following the final 'elem' member */ 969 elem_size = le16_to_cpu(ch_list->attr_len) - 970 (sizeof(*ch_list) - sizeof(struct wilc_attr_entry)); 971 for (i = 0; i < elem_size;) { 972 struct wilc_ch_list_elem *e; 973 974 e = (struct wilc_ch_list_elem *)(ch_list->elem + i); 975 976 i += sizeof(*e); 977 if (i > elem_size) 978 break; 979 980 i += e->no_of_channels; 981 if (i > elem_size) 982 break; 983 984 if (e->op_class == WILC_WLAN_OPERATING_CLASS_2_4GHZ) { 985 memset(e->ch_list, sta_ch, e->no_of_channels); 986 break; 987 } 988 } 989 } 990 991 if (op_ch_idx) { 992 op_ch = (struct wilc_attr_oper_ch *)&buf[op_ch_idx]; 993 op_ch->op_class = WILC_WLAN_OPERATING_CLASS_2_4GHZ; 994 op_ch->op_channel = sta_ch; 995 } 996} 997 998void wilc_wfi_p2p_rx(struct wilc_vif *vif, u8 *buff, u32 size) 999{ 1000 struct wilc *wl = vif->wilc; 1001 struct wilc_priv *priv = &vif->priv; 1002 struct host_if_drv *wfi_drv = priv->hif_drv; 1003 struct ieee80211_mgmt *mgmt; 1004 struct wilc_vendor_specific_ie *p; 1005 struct wilc_p2p_pub_act_frame *d; 1006 int ie_offset = offsetof(struct ieee80211_mgmt, u) + sizeof(*d); 1007 const u8 *vendor_ie; 1008 u32 header, pkt_offset; 1009 s32 freq; 1010 1011 header = get_unaligned_le32(buff - HOST_HDR_OFFSET); 1012 pkt_offset = FIELD_GET(WILC_PKT_HDR_OFFSET_FIELD, header); 1013 1014 if (pkt_offset & IS_MANAGMEMENT_CALLBACK) { 1015 bool ack = false; 1016 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)buff; 1017 1018 if (ieee80211_is_probe_resp(hdr->frame_control) || 1019 pkt_offset & IS_MGMT_STATUS_SUCCES) 1020 ack = true; 1021 1022 cfg80211_mgmt_tx_status(&priv->wdev, priv->tx_cookie, buff, 1023 size, ack, GFP_KERNEL); 1024 return; 1025 } 1026 1027 freq = ieee80211_channel_to_frequency(wl->op_ch, NL80211_BAND_2GHZ); 1028 1029 mgmt = (struct ieee80211_mgmt *)buff; 1030 if (!ieee80211_is_action(mgmt->frame_control)) 1031 goto out_rx_mgmt; 1032 1033 if (priv->cfg_scanning && 1034 time_after_eq(jiffies, (unsigned long)wfi_drv->p2p_timeout)) { 1035 netdev_dbg(vif->ndev, "Receiving action wrong ch\n"); 1036 return; 1037 } 1038 1039 if (!ieee80211_is_public_action((struct ieee80211_hdr *)buff, size)) 1040 goto out_rx_mgmt; 1041 1042 d = (struct wilc_p2p_pub_act_frame *)(&mgmt->u.action); 1043 if (d->oui_subtype != GO_NEG_REQ && d->oui_subtype != GO_NEG_RSP && 1044 d->oui_subtype != P2P_INV_REQ && d->oui_subtype != P2P_INV_RSP) 1045 goto out_rx_mgmt; 1046 1047 vendor_ie = cfg80211_find_vendor_ie(WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P, 1048 buff + ie_offset, size - ie_offset); 1049 if (!vendor_ie) 1050 goto out_rx_mgmt; 1051 1052 p = (struct wilc_vendor_specific_ie *)vendor_ie; 1053 wilc_wfi_cfg_parse_ch_attr(p->attr, p->tag_len - 4, vif->wilc->sta_ch); 1054 1055out_rx_mgmt: 1056 cfg80211_rx_mgmt(&priv->wdev, freq, 0, buff, size, 0); 1057} 1058 1059static void wilc_wfi_mgmt_tx_complete(void *priv, int status) 1060{ 1061 struct wilc_p2p_mgmt_data *pv_data = priv; 1062 1063 kfree(pv_data->buff); 1064 kfree(pv_data); 1065} 1066 1067static void wilc_wfi_remain_on_channel_expired(void *data, u64 cookie) 1068{ 1069 struct wilc_vif *vif = data; 1070 struct wilc_priv *priv = &vif->priv; 1071 struct wilc_wfi_p2p_listen_params *params = &priv->remain_on_ch_params; 1072 1073 if (cookie != params->listen_cookie) 1074 return; 1075 1076 priv->p2p_listen_state = false; 1077 1078 cfg80211_remain_on_channel_expired(&priv->wdev, params->listen_cookie, 1079 params->listen_ch, GFP_KERNEL); 1080} 1081 1082static int remain_on_channel(struct wiphy *wiphy, 1083 struct wireless_dev *wdev, 1084 struct ieee80211_channel *chan, 1085 unsigned int duration, u64 *cookie) 1086{ 1087 int ret = 0; 1088 struct wilc_vif *vif = netdev_priv(wdev->netdev); 1089 struct wilc_priv *priv = &vif->priv; 1090 u64 id; 1091 1092 if (wdev->iftype == NL80211_IFTYPE_AP) { 1093 netdev_dbg(vif->ndev, "Required while in AP mode\n"); 1094 return ret; 1095 } 1096 1097 id = ++priv->inc_roc_cookie; 1098 if (id == 0) 1099 id = ++priv->inc_roc_cookie; 1100 1101 ret = wilc_remain_on_channel(vif, id, duration, chan->hw_value, 1102 wilc_wfi_remain_on_channel_expired, 1103 (void *)vif); 1104 if (ret) 1105 return ret; 1106 1107 vif->wilc->op_ch = chan->hw_value; 1108 1109 priv->remain_on_ch_params.listen_ch = chan; 1110 priv->remain_on_ch_params.listen_cookie = id; 1111 *cookie = id; 1112 priv->p2p_listen_state = true; 1113 priv->remain_on_ch_params.listen_duration = duration; 1114 1115 cfg80211_ready_on_channel(wdev, *cookie, chan, duration, GFP_KERNEL); 1116 mod_timer(&vif->hif_drv->remain_on_ch_timer, 1117 jiffies + msecs_to_jiffies(duration + 1000)); 1118 1119 return ret; 1120} 1121 1122static int cancel_remain_on_channel(struct wiphy *wiphy, 1123 struct wireless_dev *wdev, 1124 u64 cookie) 1125{ 1126 struct wilc_vif *vif = netdev_priv(wdev->netdev); 1127 struct wilc_priv *priv = &vif->priv; 1128 1129 if (cookie != priv->remain_on_ch_params.listen_cookie) 1130 return -ENOENT; 1131 1132 return wilc_listen_state_expired(vif, cookie); 1133} 1134 1135static int mgmt_tx(struct wiphy *wiphy, 1136 struct wireless_dev *wdev, 1137 struct cfg80211_mgmt_tx_params *params, 1138 u64 *cookie) 1139{ 1140 struct ieee80211_channel *chan = params->chan; 1141 unsigned int wait = params->wait; 1142 const u8 *buf = params->buf; 1143 size_t len = params->len; 1144 const struct ieee80211_mgmt *mgmt; 1145 struct wilc_p2p_mgmt_data *mgmt_tx; 1146 struct wilc_vif *vif = netdev_priv(wdev->netdev); 1147 struct wilc_priv *priv = &vif->priv; 1148 struct host_if_drv *wfi_drv = priv->hif_drv; 1149 struct wilc_vendor_specific_ie *p; 1150 struct wilc_p2p_pub_act_frame *d; 1151 int ie_offset = offsetof(struct ieee80211_mgmt, u) + sizeof(*d); 1152 const u8 *vendor_ie; 1153 int ret = 0; 1154 1155 *cookie = prandom_u32(); 1156 priv->tx_cookie = *cookie; 1157 mgmt = (const struct ieee80211_mgmt *)buf; 1158 1159 if (!ieee80211_is_mgmt(mgmt->frame_control)) 1160 goto out; 1161 1162 mgmt_tx = kmalloc(sizeof(*mgmt_tx), GFP_KERNEL); 1163 if (!mgmt_tx) { 1164 ret = -ENOMEM; 1165 goto out; 1166 } 1167 1168 mgmt_tx->buff = kmemdup(buf, len, GFP_KERNEL); 1169 if (!mgmt_tx->buff) { 1170 ret = -ENOMEM; 1171 kfree(mgmt_tx); 1172 goto out; 1173 } 1174 1175 mgmt_tx->size = len; 1176 1177 if (ieee80211_is_probe_resp(mgmt->frame_control)) { 1178 wilc_set_mac_chnl_num(vif, chan->hw_value); 1179 vif->wilc->op_ch = chan->hw_value; 1180 goto out_txq_add_pkt; 1181 } 1182 1183 if (!ieee80211_is_public_action((struct ieee80211_hdr *)buf, len)) 1184 goto out_set_timeout; 1185 1186 d = (struct wilc_p2p_pub_act_frame *)(&mgmt->u.action); 1187 if (d->oui_type != WLAN_OUI_TYPE_WFA_P2P || 1188 d->oui_subtype != GO_NEG_CONF) { 1189 wilc_set_mac_chnl_num(vif, chan->hw_value); 1190 vif->wilc->op_ch = chan->hw_value; 1191 } 1192 1193 if (d->oui_subtype != P2P_INV_REQ && d->oui_subtype != P2P_INV_RSP) 1194 goto out_set_timeout; 1195 1196 vendor_ie = cfg80211_find_vendor_ie(WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P, 1197 mgmt_tx->buff + ie_offset, 1198 len - ie_offset); 1199 if (!vendor_ie) 1200 goto out_set_timeout; 1201 1202 p = (struct wilc_vendor_specific_ie *)vendor_ie; 1203 wilc_wfi_cfg_parse_ch_attr(p->attr, p->tag_len - 4, vif->wilc->sta_ch); 1204 1205out_set_timeout: 1206 wfi_drv->p2p_timeout = (jiffies + msecs_to_jiffies(wait)); 1207 1208out_txq_add_pkt: 1209 1210 wilc_wlan_txq_add_mgmt_pkt(wdev->netdev, mgmt_tx, 1211 mgmt_tx->buff, mgmt_tx->size, 1212 wilc_wfi_mgmt_tx_complete); 1213 1214out: 1215 1216 return ret; 1217} 1218 1219static int mgmt_tx_cancel_wait(struct wiphy *wiphy, 1220 struct wireless_dev *wdev, 1221 u64 cookie) 1222{ 1223 struct wilc_vif *vif = netdev_priv(wdev->netdev); 1224 struct wilc_priv *priv = &vif->priv; 1225 struct host_if_drv *wfi_drv = priv->hif_drv; 1226 1227 wfi_drv->p2p_timeout = jiffies; 1228 1229 if (!priv->p2p_listen_state) { 1230 struct wilc_wfi_p2p_listen_params *params; 1231 1232 params = &priv->remain_on_ch_params; 1233 1234 cfg80211_remain_on_channel_expired(wdev, 1235 params->listen_cookie, 1236 params->listen_ch, 1237 GFP_KERNEL); 1238 } 1239 1240 return 0; 1241} 1242 1243void wilc_update_mgmt_frame_registrations(struct wiphy *wiphy, 1244 struct wireless_dev *wdev, 1245 struct mgmt_frame_regs *upd) 1246{ 1247 struct wilc *wl = wiphy_priv(wiphy); 1248 struct wilc_vif *vif = netdev_priv(wdev->netdev); 1249 u32 presp_bit = BIT(IEEE80211_STYPE_PROBE_REQ >> 4); 1250 u32 action_bit = BIT(IEEE80211_STYPE_ACTION >> 4); 1251 1252 if (wl->initialized) { 1253 bool prev = vif->mgmt_reg_stypes & presp_bit; 1254 bool now = upd->interface_stypes & presp_bit; 1255 1256 if (now != prev) 1257 wilc_frame_register(vif, IEEE80211_STYPE_PROBE_REQ, now); 1258 1259 prev = vif->mgmt_reg_stypes & action_bit; 1260 now = upd->interface_stypes & action_bit; 1261 1262 if (now != prev) 1263 wilc_frame_register(vif, IEEE80211_STYPE_ACTION, now); 1264 } 1265 1266 vif->mgmt_reg_stypes = 1267 upd->interface_stypes & (presp_bit | action_bit); 1268} 1269 1270static int set_cqm_rssi_config(struct wiphy *wiphy, struct net_device *dev, 1271 s32 rssi_thold, u32 rssi_hyst) 1272{ 1273 return 0; 1274} 1275 1276static int dump_station(struct wiphy *wiphy, struct net_device *dev, 1277 int idx, u8 *mac, struct station_info *sinfo) 1278{ 1279 struct wilc_vif *vif = netdev_priv(dev); 1280 int ret; 1281 1282 if (idx != 0) 1283 return -ENOENT; 1284 1285 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL); 1286 1287 ret = wilc_get_rssi(vif, &sinfo->signal); 1288 if (ret) 1289 return ret; 1290 1291 memcpy(mac, vif->priv.associated_bss, ETH_ALEN); 1292 return 0; 1293} 1294 1295static int set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, 1296 bool enabled, int timeout) 1297{ 1298 struct wilc_vif *vif = netdev_priv(dev); 1299 struct wilc_priv *priv = &vif->priv; 1300 1301 if (!priv->hif_drv) 1302 return -EIO; 1303 1304 wilc_set_power_mgmt(vif, enabled, timeout); 1305 1306 return 0; 1307} 1308 1309static int change_virtual_intf(struct wiphy *wiphy, struct net_device *dev, 1310 enum nl80211_iftype type, 1311 struct vif_params *params) 1312{ 1313 struct wilc *wl = wiphy_priv(wiphy); 1314 struct wilc_vif *vif = netdev_priv(dev); 1315 struct wilc_priv *priv = &vif->priv; 1316 1317 switch (type) { 1318 case NL80211_IFTYPE_STATION: 1319 vif->connecting = false; 1320 dev->ieee80211_ptr->iftype = type; 1321 priv->wdev.iftype = type; 1322 vif->monitor_flag = 0; 1323 if (vif->iftype == WILC_AP_MODE || vif->iftype == WILC_GO_MODE) 1324 wilc_wfi_deinit_mon_interface(wl, true); 1325 vif->iftype = WILC_STATION_MODE; 1326 1327 if (wl->initialized) 1328 wilc_set_operation_mode(vif, wilc_get_vif_idx(vif), 1329 WILC_STATION_MODE, vif->idx); 1330 1331 memset(priv->assoc_stainfo.sta_associated_bss, 0, 1332 WILC_MAX_NUM_STA * ETH_ALEN); 1333 break; 1334 1335 case NL80211_IFTYPE_P2P_CLIENT: 1336 vif->connecting = false; 1337 dev->ieee80211_ptr->iftype = type; 1338 priv->wdev.iftype = type; 1339 vif->monitor_flag = 0; 1340 vif->iftype = WILC_CLIENT_MODE; 1341 1342 if (wl->initialized) 1343 wilc_set_operation_mode(vif, wilc_get_vif_idx(vif), 1344 WILC_STATION_MODE, vif->idx); 1345 break; 1346 1347 case NL80211_IFTYPE_AP: 1348 dev->ieee80211_ptr->iftype = type; 1349 priv->wdev.iftype = type; 1350 vif->iftype = WILC_AP_MODE; 1351 1352 if (wl->initialized) 1353 wilc_set_operation_mode(vif, wilc_get_vif_idx(vif), 1354 WILC_AP_MODE, vif->idx); 1355 break; 1356 1357 case NL80211_IFTYPE_P2P_GO: 1358 dev->ieee80211_ptr->iftype = type; 1359 priv->wdev.iftype = type; 1360 vif->iftype = WILC_GO_MODE; 1361 1362 if (wl->initialized) 1363 wilc_set_operation_mode(vif, wilc_get_vif_idx(vif), 1364 WILC_AP_MODE, vif->idx); 1365 break; 1366 1367 default: 1368 netdev_err(dev, "Unknown interface type= %d\n", type); 1369 return -EINVAL; 1370 } 1371 1372 return 0; 1373} 1374 1375static int start_ap(struct wiphy *wiphy, struct net_device *dev, 1376 struct cfg80211_ap_settings *settings) 1377{ 1378 struct wilc_vif *vif = netdev_priv(dev); 1379 int ret; 1380 1381 ret = set_channel(wiphy, &settings->chandef); 1382 if (ret != 0) 1383 netdev_err(dev, "Error in setting channel\n"); 1384 1385 wilc_wlan_set_bssid(dev, dev->dev_addr, WILC_AP_MODE); 1386 1387 return wilc_add_beacon(vif, settings->beacon_interval, 1388 settings->dtim_period, &settings->beacon); 1389} 1390 1391static int change_beacon(struct wiphy *wiphy, struct net_device *dev, 1392 struct cfg80211_beacon_data *beacon) 1393{ 1394 struct wilc_vif *vif = netdev_priv(dev); 1395 1396 return wilc_add_beacon(vif, 0, 0, beacon); 1397} 1398 1399static int stop_ap(struct wiphy *wiphy, struct net_device *dev) 1400{ 1401 int ret; 1402 struct wilc_vif *vif = netdev_priv(dev); 1403 1404 wilc_wlan_set_bssid(dev, NULL, WILC_AP_MODE); 1405 1406 ret = wilc_del_beacon(vif); 1407 1408 if (ret) 1409 netdev_err(dev, "Host delete beacon fail\n"); 1410 1411 return ret; 1412} 1413 1414static int add_station(struct wiphy *wiphy, struct net_device *dev, 1415 const u8 *mac, struct station_parameters *params) 1416{ 1417 int ret = 0; 1418 struct wilc_vif *vif = netdev_priv(dev); 1419 struct wilc_priv *priv = &vif->priv; 1420 1421 if (vif->iftype == WILC_AP_MODE || vif->iftype == WILC_GO_MODE) { 1422 memcpy(priv->assoc_stainfo.sta_associated_bss[params->aid], mac, 1423 ETH_ALEN); 1424 1425 ret = wilc_add_station(vif, mac, params); 1426 if (ret) 1427 netdev_err(dev, "Host add station fail\n"); 1428 } 1429 1430 return ret; 1431} 1432 1433static int del_station(struct wiphy *wiphy, struct net_device *dev, 1434 struct station_del_parameters *params) 1435{ 1436 const u8 *mac = params->mac; 1437 int ret = 0; 1438 struct wilc_vif *vif = netdev_priv(dev); 1439 struct wilc_priv *priv = &vif->priv; 1440 struct sta_info *info; 1441 1442 if (!(vif->iftype == WILC_AP_MODE || vif->iftype == WILC_GO_MODE)) 1443 return ret; 1444 1445 info = &priv->assoc_stainfo; 1446 1447 if (!mac) 1448 ret = wilc_del_allstation(vif, info->sta_associated_bss); 1449 1450 ret = wilc_del_station(vif, mac); 1451 if (ret) 1452 netdev_err(dev, "Host delete station fail\n"); 1453 return ret; 1454} 1455 1456static int change_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 1462 if (vif->iftype == WILC_AP_MODE || vif->iftype == WILC_GO_MODE) { 1463 ret = wilc_edit_station(vif, mac, params); 1464 if (ret) 1465 netdev_err(dev, "Host edit station fail\n"); 1466 } 1467 return ret; 1468} 1469 1470static struct wilc_vif *wilc_get_vif_from_type(struct wilc *wl, int type) 1471{ 1472 struct wilc_vif *vif; 1473 1474 list_for_each_entry_rcu(vif, &wl->vif_list, list) { 1475 if (vif->iftype == type) 1476 return vif; 1477 } 1478 1479 return NULL; 1480} 1481 1482static struct wireless_dev *add_virtual_intf(struct wiphy *wiphy, 1483 const char *name, 1484 unsigned char name_assign_type, 1485 enum nl80211_iftype type, 1486 struct vif_params *params) 1487{ 1488 struct wilc *wl = wiphy_priv(wiphy); 1489 struct wilc_vif *vif; 1490 struct wireless_dev *wdev; 1491 int iftype; 1492 1493 if (type == NL80211_IFTYPE_MONITOR) { 1494 struct net_device *ndev; 1495 int srcu_idx; 1496 1497 srcu_idx = srcu_read_lock(&wl->srcu); 1498 vif = wilc_get_vif_from_type(wl, WILC_AP_MODE); 1499 if (!vif) { 1500 vif = wilc_get_vif_from_type(wl, WILC_GO_MODE); 1501 if (!vif) { 1502 srcu_read_unlock(&wl->srcu, srcu_idx); 1503 goto validate_interface; 1504 } 1505 } 1506 1507 if (vif->monitor_flag) { 1508 srcu_read_unlock(&wl->srcu, srcu_idx); 1509 goto validate_interface; 1510 } 1511 1512 ndev = wilc_wfi_init_mon_interface(wl, name, vif->ndev); 1513 if (ndev) { 1514 vif->monitor_flag = 1; 1515 } else { 1516 srcu_read_unlock(&wl->srcu, srcu_idx); 1517 return ERR_PTR(-EINVAL); 1518 } 1519 1520 wdev = &vif->priv.wdev; 1521 srcu_read_unlock(&wl->srcu, srcu_idx); 1522 return wdev; 1523 } 1524 1525validate_interface: 1526 mutex_lock(&wl->vif_mutex); 1527 if (wl->vif_num == WILC_NUM_CONCURRENT_IFC) { 1528 pr_err("Reached maximum number of interface\n"); 1529 mutex_unlock(&wl->vif_mutex); 1530 return ERR_PTR(-EINVAL); 1531 } 1532 mutex_unlock(&wl->vif_mutex); 1533 1534 switch (type) { 1535 case NL80211_IFTYPE_STATION: 1536 iftype = WILC_STATION_MODE; 1537 break; 1538 case NL80211_IFTYPE_AP: 1539 iftype = WILC_AP_MODE; 1540 break; 1541 default: 1542 return ERR_PTR(-EOPNOTSUPP); 1543 } 1544 1545 vif = wilc_netdev_ifc_init(wl, name, iftype, type, true); 1546 if (IS_ERR(vif)) 1547 return ERR_CAST(vif); 1548 1549 return &vif->priv.wdev; 1550} 1551 1552static int del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) 1553{ 1554 struct wilc *wl = wiphy_priv(wiphy); 1555 struct wilc_vif *vif; 1556 1557 if (wdev->iftype == NL80211_IFTYPE_AP || 1558 wdev->iftype == NL80211_IFTYPE_P2P_GO) 1559 wilc_wfi_deinit_mon_interface(wl, true); 1560 vif = netdev_priv(wdev->netdev); 1561 cfg80211_stop_iface(wiphy, wdev, GFP_KERNEL); 1562 unregister_netdevice(vif->ndev); 1563 vif->monitor_flag = 0; 1564 1565 wilc_set_operation_mode(vif, 0, 0, 0); 1566 mutex_lock(&wl->vif_mutex); 1567 list_del_rcu(&vif->list); 1568 wl->vif_num--; 1569 mutex_unlock(&wl->vif_mutex); 1570 synchronize_srcu(&wl->srcu); 1571 return 0; 1572} 1573 1574static int wilc_suspend(struct wiphy *wiphy, struct cfg80211_wowlan *wow) 1575{ 1576 struct wilc *wl = wiphy_priv(wiphy); 1577 1578 if (!wow && wilc_wlan_get_num_conn_ifcs(wl)) 1579 wl->suspend_event = true; 1580 else 1581 wl->suspend_event = false; 1582 1583 return 0; 1584} 1585 1586static int wilc_resume(struct wiphy *wiphy) 1587{ 1588 return 0; 1589} 1590 1591static void wilc_set_wakeup(struct wiphy *wiphy, bool enabled) 1592{ 1593 struct wilc *wl = wiphy_priv(wiphy); 1594 struct wilc_vif *vif; 1595 int srcu_idx; 1596 1597 srcu_idx = srcu_read_lock(&wl->srcu); 1598 vif = wilc_get_wl_to_vif(wl); 1599 if (IS_ERR(vif)) { 1600 srcu_read_unlock(&wl->srcu, srcu_idx); 1601 return; 1602 } 1603 1604 netdev_info(vif->ndev, "cfg set wake up = %d\n", enabled); 1605 srcu_read_unlock(&wl->srcu, srcu_idx); 1606} 1607 1608static int set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, 1609 enum nl80211_tx_power_setting type, int mbm) 1610{ 1611 int ret; 1612 int srcu_idx; 1613 s32 tx_power = MBM_TO_DBM(mbm); 1614 struct wilc *wl = wiphy_priv(wiphy); 1615 struct wilc_vif *vif; 1616 1617 if (!wl->initialized) 1618 return -EIO; 1619 1620 srcu_idx = srcu_read_lock(&wl->srcu); 1621 vif = wilc_get_wl_to_vif(wl); 1622 if (IS_ERR(vif)) { 1623 srcu_read_unlock(&wl->srcu, srcu_idx); 1624 return -EINVAL; 1625 } 1626 1627 netdev_info(vif->ndev, "Setting tx power %d\n", tx_power); 1628 if (tx_power < 0) 1629 tx_power = 0; 1630 else if (tx_power > 18) 1631 tx_power = 18; 1632 ret = wilc_set_tx_power(vif, tx_power); 1633 if (ret) 1634 netdev_err(vif->ndev, "Failed to set tx power\n"); 1635 srcu_read_unlock(&wl->srcu, srcu_idx); 1636 1637 return ret; 1638} 1639 1640static int get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, 1641 int *dbm) 1642{ 1643 int ret; 1644 struct wilc_vif *vif = netdev_priv(wdev->netdev); 1645 struct wilc *wl = vif->wilc; 1646 1647 /* If firmware is not started, return. */ 1648 if (!wl->initialized) 1649 return -EIO; 1650 1651 ret = wilc_get_tx_power(vif, (u8 *)dbm); 1652 if (ret) 1653 netdev_err(vif->ndev, "Failed to get tx power\n"); 1654 1655 return ret; 1656} 1657 1658static const struct cfg80211_ops wilc_cfg80211_ops = { 1659 .set_monitor_channel = set_channel, 1660 .scan = scan, 1661 .connect = connect, 1662 .disconnect = disconnect, 1663 .add_key = add_key, 1664 .del_key = del_key, 1665 .get_key = get_key, 1666 .set_default_key = set_default_key, 1667 .add_virtual_intf = add_virtual_intf, 1668 .del_virtual_intf = del_virtual_intf, 1669 .change_virtual_intf = change_virtual_intf, 1670 1671 .start_ap = start_ap, 1672 .change_beacon = change_beacon, 1673 .stop_ap = stop_ap, 1674 .add_station = add_station, 1675 .del_station = del_station, 1676 .change_station = change_station, 1677 .get_station = get_station, 1678 .dump_station = dump_station, 1679 .change_bss = change_bss, 1680 .set_wiphy_params = set_wiphy_params, 1681 1682 .set_pmksa = set_pmksa, 1683 .del_pmksa = del_pmksa, 1684 .flush_pmksa = flush_pmksa, 1685 .remain_on_channel = remain_on_channel, 1686 .cancel_remain_on_channel = cancel_remain_on_channel, 1687 .mgmt_tx_cancel_wait = mgmt_tx_cancel_wait, 1688 .mgmt_tx = mgmt_tx, 1689 .update_mgmt_frame_registrations = wilc_update_mgmt_frame_registrations, 1690 .set_power_mgmt = set_power_mgmt, 1691 .set_cqm_rssi_config = set_cqm_rssi_config, 1692 1693 .suspend = wilc_suspend, 1694 .resume = wilc_resume, 1695 .set_wakeup = wilc_set_wakeup, 1696 .set_tx_power = set_tx_power, 1697 .get_tx_power = get_tx_power, 1698 1699}; 1700 1701static void wlan_init_locks(struct wilc *wl) 1702{ 1703 mutex_init(&wl->hif_cs); 1704 mutex_init(&wl->rxq_cs); 1705 mutex_init(&wl->cfg_cmd_lock); 1706 mutex_init(&wl->vif_mutex); 1707 1708 spin_lock_init(&wl->txq_spinlock); 1709 mutex_init(&wl->txq_add_to_head_cs); 1710 1711 init_completion(&wl->txq_event); 1712 init_completion(&wl->cfg_event); 1713 init_completion(&wl->sync_event); 1714 init_completion(&wl->txq_thread_started); 1715 init_srcu_struct(&wl->srcu); 1716} 1717 1718void wlan_deinit_locks(struct wilc *wilc) 1719{ 1720 mutex_destroy(&wilc->hif_cs); 1721 mutex_destroy(&wilc->rxq_cs); 1722 mutex_destroy(&wilc->cfg_cmd_lock); 1723 mutex_destroy(&wilc->txq_add_to_head_cs); 1724 mutex_destroy(&wilc->vif_mutex); 1725 cleanup_srcu_struct(&wilc->srcu); 1726} 1727 1728int wilc_cfg80211_init(struct wilc **wilc, struct device *dev, int io_type, 1729 const struct wilc_hif_func *ops) 1730{ 1731 struct wilc *wl; 1732 struct wilc_vif *vif; 1733 int ret; 1734 1735 wl = wilc_create_wiphy(dev); 1736 if (!wl) 1737 return -EINVAL; 1738 1739 wlan_init_locks(wl); 1740 1741 ret = wilc_wlan_cfg_init(wl); 1742 if (ret) 1743 goto free_wl; 1744 1745 *wilc = wl; 1746 wl->io_type = io_type; 1747 wl->hif_func = ops; 1748 wl->chip_ps_state = WILC_CHIP_WAKEDUP; 1749 INIT_LIST_HEAD(&wl->txq_head.list); 1750 INIT_LIST_HEAD(&wl->rxq_head.list); 1751 INIT_LIST_HEAD(&wl->vif_list); 1752 1753 wl->hif_workqueue = create_singlethread_workqueue("WILC_wq"); 1754 if (!wl->hif_workqueue) { 1755 ret = -ENOMEM; 1756 goto free_cfg; 1757 } 1758 vif = wilc_netdev_ifc_init(wl, "wlan%d", WILC_STATION_MODE, 1759 NL80211_IFTYPE_STATION, false); 1760 if (IS_ERR(vif)) { 1761 ret = PTR_ERR(vif); 1762 goto free_hq; 1763 } 1764 1765 return 0; 1766 1767free_hq: 1768 destroy_workqueue(wl->hif_workqueue); 1769 1770free_cfg: 1771 wilc_wlan_cfg_deinit(wl); 1772 1773free_wl: 1774 wlan_deinit_locks(wl); 1775 wiphy_unregister(wl->wiphy); 1776 wiphy_free(wl->wiphy); 1777 return ret; 1778} 1779EXPORT_SYMBOL_GPL(wilc_cfg80211_init); 1780 1781struct wilc *wilc_create_wiphy(struct device *dev) 1782{ 1783 struct wiphy *wiphy; 1784 struct wilc *wl; 1785 int ret; 1786 1787 wiphy = wiphy_new(&wilc_cfg80211_ops, sizeof(*wl)); 1788 if (!wiphy) 1789 return NULL; 1790 1791 wl = wiphy_priv(wiphy); 1792 1793 memcpy(wl->bitrates, wilc_bitrates, sizeof(wilc_bitrates)); 1794 memcpy(wl->channels, wilc_2ghz_channels, sizeof(wilc_2ghz_channels)); 1795 wl->band.bitrates = wl->bitrates; 1796 wl->band.n_bitrates = ARRAY_SIZE(wl->bitrates); 1797 wl->band.channels = wl->channels; 1798 wl->band.n_channels = ARRAY_SIZE(wilc_2ghz_channels); 1799 1800 wl->band.ht_cap.ht_supported = 1; 1801 wl->band.ht_cap.cap |= (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT); 1802 wl->band.ht_cap.mcs.rx_mask[0] = 0xff; 1803 wl->band.ht_cap.ampdu_factor = IEEE80211_HT_MAX_AMPDU_8K; 1804 wl->band.ht_cap.ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; 1805 1806 wiphy->bands[NL80211_BAND_2GHZ] = &wl->band; 1807 1808 wiphy->max_scan_ssids = WILC_MAX_NUM_PROBED_SSID; 1809#ifdef CONFIG_PM 1810 wiphy->wowlan = &wowlan_support; 1811#endif 1812 wiphy->max_num_pmkids = WILC_MAX_NUM_PMKIDS; 1813 wiphy->max_scan_ie_len = 1000; 1814 wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; 1815 memcpy(wl->cipher_suites, wilc_cipher_suites, 1816 sizeof(wilc_cipher_suites)); 1817 wiphy->cipher_suites = wl->cipher_suites; 1818 wiphy->n_cipher_suites = ARRAY_SIZE(wilc_cipher_suites); 1819 wiphy->mgmt_stypes = wilc_wfi_cfg80211_mgmt_types; 1820 1821 wiphy->max_remain_on_channel_duration = 500; 1822 wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | 1823 BIT(NL80211_IFTYPE_AP) | 1824 BIT(NL80211_IFTYPE_MONITOR) | 1825 BIT(NL80211_IFTYPE_P2P_GO) | 1826 BIT(NL80211_IFTYPE_P2P_CLIENT); 1827 wiphy->flags |= WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; 1828 1829 set_wiphy_dev(wiphy, dev); 1830 wl->wiphy = wiphy; 1831 ret = wiphy_register(wiphy); 1832 if (ret) { 1833 wiphy_free(wiphy); 1834 return NULL; 1835 } 1836 return wl; 1837} 1838 1839int wilc_init_host_int(struct net_device *net) 1840{ 1841 int ret; 1842 struct wilc_vif *vif = netdev_priv(net); 1843 struct wilc_priv *priv = &vif->priv; 1844 1845 priv->p2p_listen_state = false; 1846 1847 mutex_init(&priv->scan_req_lock); 1848 ret = wilc_init(net, &priv->hif_drv); 1849 if (ret) 1850 netdev_err(net, "Error while initializing hostinterface\n"); 1851 1852 return ret; 1853} 1854 1855void wilc_deinit_host_int(struct net_device *net) 1856{ 1857 int ret; 1858 struct wilc_vif *vif = netdev_priv(net); 1859 struct wilc_priv *priv = &vif->priv; 1860 1861 priv->p2p_listen_state = false; 1862 1863 flush_workqueue(vif->wilc->hif_workqueue); 1864 mutex_destroy(&priv->scan_req_lock); 1865 ret = wilc_deinit(vif); 1866 1867 if (ret) 1868 netdev_err(net, "Error while deinitializing host interface\n"); 1869} 1870 1871