1 /* 2 * WPA Supplicant / Control interface (shared code for all backends) 3 * Copyright (c) 2004-2008, Jouni Malinen <j@w1.fi> 4 * 5 * This program is free software; you can redistribute it and/or modify 6 * it under the terms of the GNU General Public License version 2 as 7 * published by the Free Software Foundation. 8 * 9 * Alternatively, this software may be distributed under the terms of BSD 10 * license. 11 * 12 * See README and COPYING for more details. 13 */ 14 15 #include "includes.h" 16 17 #include "common.h" 18 #include "eloop.h" 19 #include "wpa.h" 20 #include "config.h" 21 #include "eapol_supp/eapol_supp_sm.h" 22 #include "wpa_supplicant_i.h" 23 #include "ctrl_iface.h" 24 #include "l2_packet/l2_packet.h" 25 #include "preauth.h" 26 #include "pmksa_cache.h" 27 #include "wpa_ctrl.h" 28 #include "eap_peer/eap.h" 29 #include "ieee802_11_defs.h" 30 #include "wps_supplicant.h" 31 #include "wps/wps.h" 32 33 static int wpa_supplicant_global_iface_list(struct wpa_global *global, 34 char *buf, int len); 35 static int wpa_supplicant_global_iface_interfaces(struct wpa_global *global, 36 char *buf, int len); 37 38 39 static int wpa_supplicant_ctrl_iface_set(struct wpa_supplicant *wpa_s, 40 char *cmd) 41 { 42 char *value; 43 int ret = 0; 44 45 value = os_strchr(cmd, ' '); 46 if (value == NULL) 47 return -1; 48 *value++ = '\0'; 49 50 wpa_printf(MSG_DEBUG, "CTRL_IFACE SET '%s'='%s'", cmd, value); 51 if (os_strcasecmp(cmd, "EAPOL::heldPeriod") == 0) { 52 eapol_sm_configure(wpa_s->eapol, 53 atoi(value), -1, -1, -1); 54 } else if (os_strcasecmp(cmd, "EAPOL::authPeriod") == 0) { 55 eapol_sm_configure(wpa_s->eapol, 56 -1, atoi(value), -1, -1); 57 } else if (os_strcasecmp(cmd, "EAPOL::startPeriod") == 0) { 58 eapol_sm_configure(wpa_s->eapol, 59 -1, -1, atoi(value), -1); 60 } else if (os_strcasecmp(cmd, "EAPOL::maxStart") == 0) { 61 eapol_sm_configure(wpa_s->eapol, 62 -1, -1, -1, atoi(value)); 63 } else if (os_strcasecmp(cmd, "dot11RSNAConfigPMKLifetime") == 0) { 64 if (wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_LIFETIME, 65 atoi(value))) 66 ret = -1; 67 } else if (os_strcasecmp(cmd, "dot11RSNAConfigPMKReauthThreshold") == 68 0) { 69 if (wpa_sm_set_param(wpa_s->wpa, RSNA_PMK_REAUTH_THRESHOLD, 70 atoi(value))) 71 ret = -1; 72 } else if (os_strcasecmp(cmd, "dot11RSNAConfigSATimeout") == 0) { 73 if (wpa_sm_set_param(wpa_s->wpa, RSNA_SA_TIMEOUT, atoi(value))) 74 ret = -1; 75 } else 76 ret = -1; 77 78 return ret; 79 } 80 81 82 #ifdef IEEE8021X_EAPOL 83 static int wpa_supplicant_ctrl_iface_preauth(struct wpa_supplicant *wpa_s, 84 char *addr) 85 { 86 u8 bssid[ETH_ALEN]; 87 struct wpa_ssid *ssid = wpa_s->current_ssid; 88 89 if (hwaddr_aton(addr, bssid)) { 90 wpa_printf(MSG_DEBUG, "CTRL_IFACE PREAUTH: invalid address " 91 "'%s'", addr); 92 return -1; 93 } 94 95 wpa_printf(MSG_DEBUG, "CTRL_IFACE PREAUTH " MACSTR, MAC2STR(bssid)); 96 rsn_preauth_deinit(wpa_s->wpa); 97 if (rsn_preauth_init(wpa_s->wpa, bssid, ssid ? &ssid->eap : NULL)) 98 return -1; 99 100 return 0; 101 } 102 #endif /* IEEE8021X_EAPOL */ 103 104 105 #ifdef CONFIG_PEERKEY 106 /* MLME-STKSTART.request(peer) */ 107 static int wpa_supplicant_ctrl_iface_stkstart( 108 struct wpa_supplicant *wpa_s, char *addr) 109 { 110 u8 peer[ETH_ALEN]; 111 112 if (hwaddr_aton(addr, peer)) { 113 wpa_printf(MSG_DEBUG, "CTRL_IFACE STKSTART: invalid " 114 "address '%s'", peer); 115 return -1; 116 } 117 118 wpa_printf(MSG_DEBUG, "CTRL_IFACE STKSTART " MACSTR, 119 MAC2STR(peer)); 120 121 return wpa_sm_stkstart(wpa_s->wpa, peer); 122 } 123 #endif /* CONFIG_PEERKEY */ 124 125 126 #ifdef CONFIG_IEEE80211R 127 static int wpa_supplicant_ctrl_iface_ft_ds( 128 struct wpa_supplicant *wpa_s, char *addr) 129 { 130 u8 target_ap[ETH_ALEN]; 131 132 if (hwaddr_aton(addr, target_ap)) { 133 wpa_printf(MSG_DEBUG, "CTRL_IFACE FT_DS: invalid " 134 "address '%s'", target_ap); 135 return -1; 136 } 137 138 wpa_printf(MSG_DEBUG, "CTRL_IFACE FT_DS " MACSTR, MAC2STR(target_ap)); 139 140 return wpa_ft_start_over_ds(wpa_s->wpa, target_ap); 141 } 142 #endif /* CONFIG_IEEE80211R */ 143 144 145 #ifdef CONFIG_WPS 146 static int wpa_supplicant_ctrl_iface_wps_pbc(struct wpa_supplicant *wpa_s, 147 char *cmd) 148 { 149 u8 bssid[ETH_ALEN]; 150 151 if (cmd == NULL || os_strcmp(cmd, "any") == 0) 152 return wpas_wps_start_pbc(wpa_s, NULL); 153 154 if (hwaddr_aton(cmd, bssid)) { 155 wpa_printf(MSG_DEBUG, "CTRL_IFACE WPS_PBC: invalid BSSID '%s'", 156 cmd); 157 return -1; 158 } 159 160 return wpas_wps_start_pbc(wpa_s, bssid); 161 } 162 163 164 static int wpa_supplicant_ctrl_iface_wps_pin(struct wpa_supplicant *wpa_s, 165 char *cmd, char *buf, 166 size_t buflen) 167 { 168 u8 bssid[ETH_ALEN], *_bssid = bssid; 169 char *pin; 170 int ret; 171 172 pin = os_strchr(cmd, ' '); 173 if (pin) 174 *pin++ = '\0'; 175 176 if (os_strcmp(cmd, "any") == 0) 177 _bssid = NULL; 178 else if (hwaddr_aton(cmd, bssid)) { 179 wpa_printf(MSG_DEBUG, "CTRL_IFACE WPS_PIN: invalid BSSID '%s'", 180 cmd); 181 return -1; 182 } 183 184 if (pin) { 185 ret = wpas_wps_start_pin(wpa_s, _bssid, pin); 186 if (ret < 0) 187 return -1; 188 ret = os_snprintf(buf, buflen, "%s", pin); 189 if (ret < 0 || (size_t) ret >= buflen) 190 return -1; 191 return ret; 192 } 193 194 ret = wpas_wps_start_pin(wpa_s, _bssid, NULL); 195 if (ret < 0) 196 return -1; 197 198 /* Return the generated PIN */ 199 ret = os_snprintf(buf, buflen, "%08d", ret); 200 if (ret < 0 || (size_t) ret >= buflen) 201 return -1; 202 return ret; 203 } 204 205 206 static int wpa_supplicant_ctrl_iface_wps_reg(struct wpa_supplicant *wpa_s, 207 char *cmd) 208 { 209 u8 bssid[ETH_ALEN], *_bssid = bssid; 210 char *pin; 211 212 pin = os_strchr(cmd, ' '); 213 if (pin == NULL) 214 return -1; 215 *pin++ = '\0'; 216 217 if (os_strcmp(cmd, "any") == 0) 218 _bssid = NULL; 219 else if (hwaddr_aton(cmd, bssid)) { 220 wpa_printf(MSG_DEBUG, "CTRL_IFACE WPS_REG: invalid BSSID '%s'", 221 cmd); 222 return -1; 223 } 224 225 return wpas_wps_start_reg(wpa_s, _bssid, pin); 226 } 227 #endif /* CONFIG_WPS */ 228 229 230 static int wpa_supplicant_ctrl_iface_ctrl_rsp(struct wpa_supplicant *wpa_s, 231 char *rsp) 232 { 233 #ifdef IEEE8021X_EAPOL 234 char *pos, *id_pos; 235 int id; 236 struct wpa_ssid *ssid; 237 struct eap_peer_config *eap; 238 239 pos = os_strchr(rsp, '-'); 240 if (pos == NULL) 241 return -1; 242 *pos++ = '\0'; 243 id_pos = pos; 244 pos = os_strchr(pos, ':'); 245 if (pos == NULL) 246 return -1; 247 *pos++ = '\0'; 248 id = atoi(id_pos); 249 wpa_printf(MSG_DEBUG, "CTRL_IFACE: field=%s id=%d", rsp, id); 250 wpa_hexdump_ascii_key(MSG_DEBUG, "CTRL_IFACE: value", 251 (u8 *) pos, os_strlen(pos)); 252 253 ssid = wpa_config_get_network(wpa_s->conf, id); 254 if (ssid == NULL) { 255 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find SSID id=%d " 256 "to update", id); 257 return -1; 258 } 259 eap = &ssid->eap; 260 261 if (os_strcmp(rsp, "IDENTITY") == 0) { 262 os_free(eap->identity); 263 eap->identity = (u8 *) os_strdup(pos); 264 eap->identity_len = os_strlen(pos); 265 eap->pending_req_identity = 0; 266 if (ssid == wpa_s->current_ssid) 267 wpa_s->reassociate = 1; 268 } else if (os_strcmp(rsp, "PASSWORD") == 0) { 269 os_free(eap->password); 270 eap->password = (u8 *) os_strdup(pos); 271 eap->password_len = os_strlen(pos); 272 eap->pending_req_password = 0; 273 if (ssid == wpa_s->current_ssid) 274 wpa_s->reassociate = 1; 275 } else if (os_strcmp(rsp, "NEW_PASSWORD") == 0) { 276 os_free(eap->new_password); 277 eap->new_password = (u8 *) os_strdup(pos); 278 eap->new_password_len = os_strlen(pos); 279 eap->pending_req_new_password = 0; 280 if (ssid == wpa_s->current_ssid) 281 wpa_s->reassociate = 1; 282 } else if (os_strcmp(rsp, "PIN") == 0) { 283 os_free(eap->pin); 284 eap->pin = os_strdup(pos); 285 eap->pending_req_pin = 0; 286 if (ssid == wpa_s->current_ssid) 287 wpa_s->reassociate = 1; 288 } else if (os_strcmp(rsp, "OTP") == 0) { 289 os_free(eap->otp); 290 eap->otp = (u8 *) os_strdup(pos); 291 eap->otp_len = os_strlen(pos); 292 os_free(eap->pending_req_otp); 293 eap->pending_req_otp = NULL; 294 eap->pending_req_otp_len = 0; 295 } else if (os_strcmp(rsp, "PASSPHRASE") == 0) { 296 os_free(eap->private_key_passwd); 297 eap->private_key_passwd = (u8 *) os_strdup(pos); 298 eap->pending_req_passphrase = 0; 299 if (ssid == wpa_s->current_ssid) 300 wpa_s->reassociate = 1; 301 } else { 302 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown field '%s'", rsp); 303 return -1; 304 } 305 306 return 0; 307 #else /* IEEE8021X_EAPOL */ 308 wpa_printf(MSG_DEBUG, "CTRL_IFACE: 802.1X not included"); 309 return -1; 310 #endif /* IEEE8021X_EAPOL */ 311 } 312 313 314 static int wpa_supplicant_ctrl_iface_status(struct wpa_supplicant *wpa_s, 315 const char *params, 316 char *buf, size_t buflen) 317 { 318 char *pos, *end, tmp[30]; 319 int res, verbose, ret; 320 321 verbose = os_strcmp(params, "-VERBOSE") == 0; 322 pos = buf; 323 end = buf + buflen; 324 if (wpa_s->wpa_state >= WPA_ASSOCIATED) { 325 struct wpa_ssid *ssid = wpa_s->current_ssid; 326 ret = os_snprintf(pos, end - pos, "bssid=" MACSTR "\n", 327 MAC2STR(wpa_s->bssid)); 328 if (ret < 0 || ret >= end - pos) 329 return pos - buf; 330 pos += ret; 331 if (ssid) { 332 u8 *_ssid = ssid->ssid; 333 size_t ssid_len = ssid->ssid_len; 334 u8 ssid_buf[MAX_SSID_LEN]; 335 if (ssid_len == 0) { 336 int _res = wpa_drv_get_ssid(wpa_s, ssid_buf); 337 if (_res < 0) 338 ssid_len = 0; 339 else 340 ssid_len = _res; 341 _ssid = ssid_buf; 342 } 343 ret = os_snprintf(pos, end - pos, "ssid=%s\nid=%d\n", 344 wpa_ssid_txt(_ssid, ssid_len), 345 ssid->id); 346 if (ret < 0 || ret >= end - pos) 347 return pos - buf; 348 pos += ret; 349 350 if (ssid->id_str) { 351 ret = os_snprintf(pos, end - pos, 352 "id_str=%s\n", 353 ssid->id_str); 354 if (ret < 0 || ret >= end - pos) 355 return pos - buf; 356 pos += ret; 357 } 358 } 359 360 pos += wpa_sm_get_status(wpa_s->wpa, pos, end - pos, verbose); 361 } 362 ret = os_snprintf(pos, end - pos, "wpa_state=%s\n", 363 wpa_supplicant_state_txt(wpa_s->wpa_state)); 364 if (ret < 0 || ret >= end - pos) 365 return pos - buf; 366 pos += ret; 367 368 if (wpa_s->l2 && 369 l2_packet_get_ip_addr(wpa_s->l2, tmp, sizeof(tmp)) >= 0) { 370 ret = os_snprintf(pos, end - pos, "ip_address=%s\n", tmp); 371 if (ret < 0 || ret >= end - pos) 372 return pos - buf; 373 pos += ret; 374 } 375 376 if (wpa_key_mgmt_wpa_ieee8021x(wpa_s->key_mgmt) || 377 wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) { 378 res = eapol_sm_get_status(wpa_s->eapol, pos, end - pos, 379 verbose); 380 if (res >= 0) 381 pos += res; 382 } 383 384 res = rsn_preauth_get_status(wpa_s->wpa, pos, end - pos, verbose); 385 if (res >= 0) 386 pos += res; 387 388 return pos - buf; 389 } 390 391 392 static int wpa_supplicant_ctrl_iface_bssid(struct wpa_supplicant *wpa_s, 393 char *cmd) 394 { 395 char *pos; 396 int id; 397 struct wpa_ssid *ssid; 398 u8 bssid[ETH_ALEN]; 399 400 /* cmd: "<network id> <BSSID>" */ 401 pos = os_strchr(cmd, ' '); 402 if (pos == NULL) 403 return -1; 404 *pos++ = '\0'; 405 id = atoi(cmd); 406 wpa_printf(MSG_DEBUG, "CTRL_IFACE: id=%d bssid='%s'", id, pos); 407 if (hwaddr_aton(pos, bssid)) { 408 wpa_printf(MSG_DEBUG ,"CTRL_IFACE: invalid BSSID '%s'", pos); 409 return -1; 410 } 411 412 ssid = wpa_config_get_network(wpa_s->conf, id); 413 if (ssid == NULL) { 414 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find SSID id=%d " 415 "to update", id); 416 return -1; 417 } 418 419 os_memcpy(ssid->bssid, bssid, ETH_ALEN); 420 ssid->bssid_set = !is_zero_ether_addr(bssid); 421 422 return 0; 423 } 424 425 426 static int wpa_supplicant_ctrl_iface_list_networks( 427 struct wpa_supplicant *wpa_s, char *buf, size_t buflen) 428 { 429 char *pos, *end; 430 struct wpa_ssid *ssid; 431 int ret; 432 433 pos = buf; 434 end = buf + buflen; 435 ret = os_snprintf(pos, end - pos, 436 "network id / ssid / bssid / flags\n"); 437 if (ret < 0 || ret >= end - pos) 438 return pos - buf; 439 pos += ret; 440 441 ssid = wpa_s->conf->ssid; 442 while (ssid) { 443 ret = os_snprintf(pos, end - pos, "%d\t%s", 444 ssid->id, 445 wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); 446 if (ret < 0 || ret >= end - pos) 447 return pos - buf; 448 pos += ret; 449 if (ssid->bssid_set) { 450 ret = os_snprintf(pos, end - pos, "\t" MACSTR, 451 MAC2STR(ssid->bssid)); 452 } else { 453 ret = os_snprintf(pos, end - pos, "\tany"); 454 } 455 if (ret < 0 || ret >= end - pos) 456 return pos - buf; 457 pos += ret; 458 ret = os_snprintf(pos, end - pos, "\t%s%s", 459 ssid == wpa_s->current_ssid ? 460 "[CURRENT]" : "", 461 ssid->disabled ? "[DISABLED]" : ""); 462 if (ret < 0 || ret >= end - pos) 463 return pos - buf; 464 pos += ret; 465 ret = os_snprintf(pos, end - pos, "\n"); 466 if (ret < 0 || ret >= end - pos) 467 return pos - buf; 468 pos += ret; 469 470 ssid = ssid->next; 471 } 472 473 return pos - buf; 474 } 475 476 477 static char * wpa_supplicant_cipher_txt(char *pos, char *end, int cipher) 478 { 479 int first = 1, ret; 480 ret = os_snprintf(pos, end - pos, "-"); 481 if (ret < 0 || ret >= end - pos) 482 return pos; 483 pos += ret; 484 if (cipher & WPA_CIPHER_NONE) { 485 ret = os_snprintf(pos, end - pos, "%sNONE", first ? "" : "+"); 486 if (ret < 0 || ret >= end - pos) 487 return pos; 488 pos += ret; 489 first = 0; 490 } 491 if (cipher & WPA_CIPHER_WEP40) { 492 ret = os_snprintf(pos, end - pos, "%sWEP40", first ? "" : "+"); 493 if (ret < 0 || ret >= end - pos) 494 return pos; 495 pos += ret; 496 first = 0; 497 } 498 if (cipher & WPA_CIPHER_WEP104) { 499 ret = os_snprintf(pos, end - pos, "%sWEP104", 500 first ? "" : "+"); 501 if (ret < 0 || ret >= end - pos) 502 return pos; 503 pos += ret; 504 first = 0; 505 } 506 if (cipher & WPA_CIPHER_TKIP) { 507 ret = os_snprintf(pos, end - pos, "%sTKIP", first ? "" : "+"); 508 if (ret < 0 || ret >= end - pos) 509 return pos; 510 pos += ret; 511 first = 0; 512 } 513 if (cipher & WPA_CIPHER_CCMP) { 514 ret = os_snprintf(pos, end - pos, "%sCCMP", first ? "" : "+"); 515 if (ret < 0 || ret >= end - pos) 516 return pos; 517 pos += ret; 518 first = 0; 519 } 520 return pos; 521 } 522 523 524 static char * wpa_supplicant_ie_txt(char *pos, char *end, const char *proto, 525 const u8 *ie, size_t ie_len) 526 { 527 struct wpa_ie_data data; 528 int first, ret; 529 530 ret = os_snprintf(pos, end - pos, "[%s-", proto); 531 if (ret < 0 || ret >= end - pos) 532 return pos; 533 pos += ret; 534 535 if (wpa_parse_wpa_ie(ie, ie_len, &data) < 0) { 536 ret = os_snprintf(pos, end - pos, "?]"); 537 if (ret < 0 || ret >= end - pos) 538 return pos; 539 pos += ret; 540 return pos; 541 } 542 543 first = 1; 544 if (data.key_mgmt & WPA_KEY_MGMT_IEEE8021X) { 545 ret = os_snprintf(pos, end - pos, "%sEAP", first ? "" : "+"); 546 if (ret < 0 || ret >= end - pos) 547 return pos; 548 pos += ret; 549 first = 0; 550 } 551 if (data.key_mgmt & WPA_KEY_MGMT_PSK) { 552 ret = os_snprintf(pos, end - pos, "%sPSK", first ? "" : "+"); 553 if (ret < 0 || ret >= end - pos) 554 return pos; 555 pos += ret; 556 first = 0; 557 } 558 if (data.key_mgmt & WPA_KEY_MGMT_WPA_NONE) { 559 ret = os_snprintf(pos, end - pos, "%sNone", first ? "" : "+"); 560 if (ret < 0 || ret >= end - pos) 561 return pos; 562 pos += ret; 563 first = 0; 564 } 565 #ifdef CONFIG_IEEE80211R 566 if (data.key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) { 567 ret = os_snprintf(pos, end - pos, "%sFT/EAP", 568 first ? "" : "+"); 569 if (ret < 0 || ret >= end - pos) 570 return pos; 571 pos += ret; 572 first = 0; 573 } 574 if (data.key_mgmt & WPA_KEY_MGMT_FT_PSK) { 575 ret = os_snprintf(pos, end - pos, "%sFT/PSK", 576 first ? "" : "+"); 577 if (ret < 0 || ret >= end - pos) 578 return pos; 579 pos += ret; 580 first = 0; 581 } 582 #endif /* CONFIG_IEEE80211R */ 583 #ifdef CONFIG_IEEE80211W 584 if (data.key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) { 585 ret = os_snprintf(pos, end - pos, "%sEAP-SHA256", 586 first ? "" : "+"); 587 if (ret < 0 || ret >= end - pos) 588 return pos; 589 pos += ret; 590 first = 0; 591 } 592 if (data.key_mgmt & WPA_KEY_MGMT_PSK_SHA256) { 593 ret = os_snprintf(pos, end - pos, "%sPSK-SHA256", 594 first ? "" : "+"); 595 if (ret < 0 || ret >= end - pos) 596 return pos; 597 pos += ret; 598 first = 0; 599 } 600 #endif /* CONFIG_IEEE80211W */ 601 602 pos = wpa_supplicant_cipher_txt(pos, end, data.pairwise_cipher); 603 604 if (data.capabilities & WPA_CAPABILITY_PREAUTH) { 605 ret = os_snprintf(pos, end - pos, "-preauth"); 606 if (ret < 0 || ret >= end - pos) 607 return pos; 608 pos += ret; 609 } 610 611 ret = os_snprintf(pos, end - pos, "]"); 612 if (ret < 0 || ret >= end - pos) 613 return pos; 614 pos += ret; 615 616 return pos; 617 } 618 619 static char * wpa_supplicant_wps_ie_txt(char *pos, char *end, 620 const struct wpa_scan_res *res) 621 { 622 #ifdef CONFIG_WPS 623 struct wpabuf *wps_ie; 624 int ret; 625 const char *txt; 626 627 wps_ie = wpa_scan_get_vendor_ie_multi(res, WPS_IE_VENDOR_TYPE); 628 if (wps_ie == NULL) 629 return pos; 630 631 if (wps_is_selected_pbc_registrar(wps_ie)) 632 txt = "[WPS-PBC]"; 633 else if (wps_is_selected_pin_registrar(wps_ie)) 634 txt = "[WPS-PIN]"; 635 else 636 txt = "[WPS]"; 637 638 ret = os_snprintf(pos, end - pos, "%s", txt); 639 if (ret >= 0 && ret < end - pos) 640 pos += ret; 641 wpabuf_free(wps_ie); 642 #endif /* CONFIG_WPS */ 643 644 return pos; 645 } 646 647 648 /* Format one result on one text line into a buffer. */ 649 static int wpa_supplicant_ctrl_iface_scan_result( 650 const struct wpa_scan_res *res, char *buf, size_t buflen) 651 { 652 char *pos, *end; 653 int ret; 654 const u8 *ie, *ie2; 655 656 pos = buf; 657 end = buf + buflen; 658 659 ret = os_snprintf(pos, end - pos, MACSTR "\t%d\t%d\t", 660 MAC2STR(res->bssid), res->freq, res->level); 661 if (ret < 0 || ret >= end - pos) 662 return pos - buf; 663 pos += ret; 664 ie = wpa_scan_get_vendor_ie(res, WPA_IE_VENDOR_TYPE); 665 if (ie) 666 pos = wpa_supplicant_ie_txt(pos, end, "WPA", ie, 2 + ie[1]); 667 ie2 = wpa_scan_get_ie(res, WLAN_EID_RSN); 668 if (ie2) 669 pos = wpa_supplicant_ie_txt(pos, end, "WPA2", ie2, 2 + ie2[1]); 670 pos = wpa_supplicant_wps_ie_txt(pos, end, res); 671 if (!ie && !ie2 && res->caps & IEEE80211_CAP_PRIVACY) { 672 ret = os_snprintf(pos, end - pos, "[WEP]"); 673 if (ret < 0 || ret >= end - pos) 674 return pos - buf; 675 pos += ret; 676 } 677 if (res->caps & IEEE80211_CAP_IBSS) { 678 ret = os_snprintf(pos, end - pos, "[IBSS]"); 679 if (ret < 0 || ret >= end - pos) 680 return pos - buf; 681 pos += ret; 682 } 683 684 ie = wpa_scan_get_ie(res, WLAN_EID_SSID); 685 ret = os_snprintf(pos, end - pos, "\t%s", 686 ie ? wpa_ssid_txt(ie + 2, ie[1]) : ""); 687 if (ret < 0 || ret >= end - pos) 688 return pos - buf; 689 pos += ret; 690 691 ret = os_snprintf(pos, end - pos, "\n"); 692 if (ret < 0 || ret >= end - pos) 693 return pos - buf; 694 pos += ret; 695 696 return pos - buf; 697 } 698 699 700 static int wpa_supplicant_ctrl_iface_scan_results( 701 struct wpa_supplicant *wpa_s, char *buf, size_t buflen) 702 { 703 char *pos, *end; 704 struct wpa_scan_res *res; 705 int ret; 706 size_t i; 707 708 if (wpa_s->scan_res == NULL && 709 wpa_supplicant_get_scan_results(wpa_s) < 0) 710 return 0; 711 712 pos = buf; 713 end = buf + buflen; 714 ret = os_snprintf(pos, end - pos, "bssid / frequency / signal level / " 715 "flags / ssid\n"); 716 if (ret < 0 || ret >= end - pos) 717 return pos - buf; 718 pos += ret; 719 720 for (i = 0; i < wpa_s->scan_res->num; i++) { 721 res = wpa_s->scan_res->res[i]; 722 ret = wpa_supplicant_ctrl_iface_scan_result(res, pos, 723 end - pos); 724 if (ret < 0 || ret >= end - pos) 725 return pos - buf; 726 pos += ret; 727 } 728 729 return pos - buf; 730 } 731 732 733 static int wpa_supplicant_ctrl_iface_select_network( 734 struct wpa_supplicant *wpa_s, char *cmd) 735 { 736 int id; 737 struct wpa_ssid *ssid; 738 739 /* cmd: "<network id>" or "any" */ 740 if (os_strcmp(cmd, "any") == 0) { 741 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SELECT_NETWORK any"); 742 ssid = wpa_s->conf->ssid; 743 while (ssid) { 744 ssid->disabled = 0; 745 ssid = ssid->next; 746 } 747 wpa_s->reassociate = 1; 748 wpa_supplicant_req_scan(wpa_s, 0, 0); 749 return 0; 750 } 751 752 id = atoi(cmd); 753 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SELECT_NETWORK id=%d", id); 754 755 ssid = wpa_config_get_network(wpa_s->conf, id); 756 if (ssid == NULL) { 757 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network " 758 "id=%d", id); 759 return -1; 760 } 761 762 if (ssid != wpa_s->current_ssid && wpa_s->current_ssid) 763 wpa_supplicant_disassociate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); 764 765 /* Mark all other networks disabled and trigger reassociation */ 766 ssid = wpa_s->conf->ssid; 767 while (ssid) { 768 ssid->disabled = id != ssid->id; 769 ssid = ssid->next; 770 } 771 wpa_s->reassociate = 1; 772 wpa_supplicant_req_scan(wpa_s, 0, 0); 773 774 return 0; 775 } 776 777 778 static int wpa_supplicant_ctrl_iface_enable_network( 779 struct wpa_supplicant *wpa_s, char *cmd) 780 { 781 int id; 782 struct wpa_ssid *ssid; 783 784 /* cmd: "<network id>" or "all" */ 785 if (os_strcmp(cmd, "all") == 0) { 786 wpa_printf(MSG_DEBUG, "CTRL_IFACE: ENABLE_NETWORK all"); 787 ssid = wpa_s->conf->ssid; 788 while (ssid) { 789 if (ssid == wpa_s->current_ssid && ssid->disabled) 790 wpa_s->reassociate = 1; 791 ssid->disabled = 0; 792 ssid = ssid->next; 793 } 794 if (wpa_s->reassociate) 795 wpa_supplicant_req_scan(wpa_s, 0, 0); 796 return 0; 797 } 798 799 id = atoi(cmd); 800 wpa_printf(MSG_DEBUG, "CTRL_IFACE: ENABLE_NETWORK id=%d", id); 801 802 ssid = wpa_config_get_network(wpa_s->conf, id); 803 if (ssid == NULL) { 804 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network " 805 "id=%d", id); 806 return -1; 807 } 808 809 if (wpa_s->current_ssid == NULL && ssid->disabled) { 810 /* 811 * Try to reassociate since there is no current configuration 812 * and a new network was made available. */ 813 wpa_s->reassociate = 1; 814 wpa_supplicant_req_scan(wpa_s, 0, 0); 815 } 816 ssid->disabled = 0; 817 818 return 0; 819 } 820 821 822 static int wpa_supplicant_ctrl_iface_disable_network( 823 struct wpa_supplicant *wpa_s, char *cmd) 824 { 825 int id; 826 struct wpa_ssid *ssid; 827 828 /* cmd: "<network id>" or "all" */ 829 if (os_strcmp(cmd, "all") == 0) { 830 wpa_printf(MSG_DEBUG, "CTRL_IFACE: DISABLE_NETWORK all"); 831 ssid = wpa_s->conf->ssid; 832 while (ssid) { 833 ssid->disabled = 1; 834 ssid = ssid->next; 835 } 836 if (wpa_s->current_ssid) 837 wpa_supplicant_disassociate(wpa_s, 838 WLAN_REASON_DEAUTH_LEAVING); 839 return 0; 840 } 841 842 id = atoi(cmd); 843 wpa_printf(MSG_DEBUG, "CTRL_IFACE: DISABLE_NETWORK id=%d", id); 844 845 ssid = wpa_config_get_network(wpa_s->conf, id); 846 if (ssid == NULL) { 847 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network " 848 "id=%d", id); 849 return -1; 850 } 851 852 if (ssid == wpa_s->current_ssid) 853 wpa_supplicant_disassociate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); 854 ssid->disabled = 1; 855 856 return 0; 857 } 858 859 860 static int wpa_supplicant_ctrl_iface_add_network( 861 struct wpa_supplicant *wpa_s, char *buf, size_t buflen) 862 { 863 struct wpa_ssid *ssid; 864 int ret; 865 866 wpa_printf(MSG_DEBUG, "CTRL_IFACE: ADD_NETWORK"); 867 868 ssid = wpa_config_add_network(wpa_s->conf); 869 if (ssid == NULL) 870 return -1; 871 ssid->disabled = 1; 872 wpa_config_set_network_defaults(ssid); 873 874 ret = os_snprintf(buf, buflen, "%d\n", ssid->id); 875 if (ret < 0 || (size_t) ret >= buflen) 876 return -1; 877 return ret; 878 } 879 880 881 static int wpa_supplicant_ctrl_iface_remove_network( 882 struct wpa_supplicant *wpa_s, char *cmd) 883 { 884 int id; 885 struct wpa_ssid *ssid; 886 887 /* cmd: "<network id>" or "all" */ 888 if (os_strcmp(cmd, "all") == 0) { 889 wpa_printf(MSG_DEBUG, "CTRL_IFACE: REMOVE_NETWORK all"); 890 ssid = wpa_s->conf->ssid; 891 while (ssid) { 892 id = ssid->id; 893 ssid = ssid->next; 894 wpa_config_remove_network(wpa_s->conf, id); 895 } 896 if (wpa_s->current_ssid) { 897 eapol_sm_invalidate_cached_session(wpa_s->eapol); 898 wpa_supplicant_disassociate(wpa_s, 899 WLAN_REASON_DEAUTH_LEAVING); 900 } 901 return 0; 902 } 903 904 id = atoi(cmd); 905 wpa_printf(MSG_DEBUG, "CTRL_IFACE: REMOVE_NETWORK id=%d", id); 906 907 ssid = wpa_config_get_network(wpa_s->conf, id); 908 if (ssid == NULL || 909 wpa_config_remove_network(wpa_s->conf, id) < 0) { 910 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network " 911 "id=%d", id); 912 return -1; 913 } 914 915 if (ssid == wpa_s->current_ssid) { 916 /* 917 * Invalidate the EAP session cache if the current network is 918 * removed. 919 */ 920 eapol_sm_invalidate_cached_session(wpa_s->eapol); 921 922 wpa_supplicant_disassociate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); 923 } 924 925 return 0; 926 } 927 928 929 static int wpa_supplicant_ctrl_iface_set_network( 930 struct wpa_supplicant *wpa_s, char *cmd) 931 { 932 int id; 933 struct wpa_ssid *ssid; 934 char *name, *value; 935 936 /* cmd: "<network id> <variable name> <value>" */ 937 name = os_strchr(cmd, ' '); 938 if (name == NULL) 939 return -1; 940 *name++ = '\0'; 941 942 value = os_strchr(name, ' '); 943 if (value == NULL) 944 return -1; 945 *value++ = '\0'; 946 947 id = atoi(cmd); 948 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SET_NETWORK id=%d name='%s'", 949 id, name); 950 wpa_hexdump_ascii_key(MSG_DEBUG, "CTRL_IFACE: value", 951 (u8 *) value, os_strlen(value)); 952 953 ssid = wpa_config_get_network(wpa_s->conf, id); 954 if (ssid == NULL) { 955 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network " 956 "id=%d", id); 957 return -1; 958 } 959 960 if (wpa_config_set(ssid, name, value, 0) < 0) { 961 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Failed to set network " 962 "variable '%s'", name); 963 return -1; 964 } 965 966 if (wpa_s->current_ssid == ssid) { 967 /* 968 * Invalidate the EAP session cache if anything in the current 969 * configuration changes. 970 */ 971 eapol_sm_invalidate_cached_session(wpa_s->eapol); 972 } 973 974 if ((os_strcmp(name, "psk") == 0 && 975 value[0] == '"' && ssid->ssid_len) || 976 (os_strcmp(name, "ssid") == 0 && ssid->passphrase)) 977 wpa_config_update_psk(ssid); 978 979 return 0; 980 } 981 982 983 static int wpa_supplicant_ctrl_iface_get_network( 984 struct wpa_supplicant *wpa_s, char *cmd, char *buf, size_t buflen) 985 { 986 int id; 987 size_t res; 988 struct wpa_ssid *ssid; 989 char *name, *value; 990 991 /* cmd: "<network id> <variable name>" */ 992 name = os_strchr(cmd, ' '); 993 if (name == NULL || buflen == 0) 994 return -1; 995 *name++ = '\0'; 996 997 id = atoi(cmd); 998 wpa_printf(MSG_DEBUG, "CTRL_IFACE: GET_NETWORK id=%d name='%s'", 999 id, name); 1000 1001 ssid = wpa_config_get_network(wpa_s->conf, id); 1002 if (ssid == NULL) { 1003 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Could not find network " 1004 "id=%d", id); 1005 return -1; 1006 } 1007 1008 value = wpa_config_get_no_key(ssid, name); 1009 if (value == NULL) { 1010 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Failed to get network " 1011 "variable '%s'", name); 1012 return -1; 1013 } 1014 1015 res = os_strlcpy(buf, value, buflen); 1016 if (res >= buflen) { 1017 os_free(value); 1018 return -1; 1019 } 1020 1021 os_free(value); 1022 1023 return res; 1024 } 1025 1026 1027 #ifndef CONFIG_NO_CONFIG_WRITE 1028 static int wpa_supplicant_ctrl_iface_save_config(struct wpa_supplicant *wpa_s) 1029 { 1030 int ret; 1031 1032 if (!wpa_s->conf->update_config) { 1033 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SAVE_CONFIG - Not allowed " 1034 "to update configuration (update_config=0)"); 1035 return -1; 1036 } 1037 1038 ret = wpa_config_write(wpa_s->confname, wpa_s->conf); 1039 if (ret) { 1040 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SAVE_CONFIG - Failed to " 1041 "update configuration"); 1042 } else { 1043 wpa_printf(MSG_DEBUG, "CTRL_IFACE: SAVE_CONFIG - Configuration" 1044 " updated"); 1045 } 1046 1047 return ret; 1048 } 1049 #endif /* CONFIG_NO_CONFIG_WRITE */ 1050 1051 1052 static int ctrl_iface_get_capability_pairwise(int res, char *strict, 1053 struct wpa_driver_capa *capa, 1054 char *buf, size_t buflen) 1055 { 1056 int ret, first = 1; 1057 char *pos, *end; 1058 size_t len; 1059 1060 pos = buf; 1061 end = pos + buflen; 1062 1063 if (res < 0) { 1064 if (strict) 1065 return 0; 1066 len = os_strlcpy(buf, "CCMP TKIP NONE", buflen); 1067 if (len >= buflen) 1068 return -1; 1069 return len; 1070 } 1071 1072 if (capa->enc & WPA_DRIVER_CAPA_ENC_CCMP) { 1073 ret = os_snprintf(pos, end - pos, "%sCCMP", first ? "" : " "); 1074 if (ret < 0 || ret >= end - pos) 1075 return pos - buf; 1076 pos += ret; 1077 first = 0; 1078 } 1079 1080 if (capa->enc & WPA_DRIVER_CAPA_ENC_TKIP) { 1081 ret = os_snprintf(pos, end - pos, "%sTKIP", first ? "" : " "); 1082 if (ret < 0 || ret >= end - pos) 1083 return pos - buf; 1084 pos += ret; 1085 first = 0; 1086 } 1087 1088 if (capa->key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) { 1089 ret = os_snprintf(pos, end - pos, "%sNONE", first ? "" : " "); 1090 if (ret < 0 || ret >= end - pos) 1091 return pos - buf; 1092 pos += ret; 1093 first = 0; 1094 } 1095 1096 return pos - buf; 1097 } 1098 1099 1100 static int ctrl_iface_get_capability_group(int res, char *strict, 1101 struct wpa_driver_capa *capa, 1102 char *buf, size_t buflen) 1103 { 1104 int ret, first = 1; 1105 char *pos, *end; 1106 size_t len; 1107 1108 pos = buf; 1109 end = pos + buflen; 1110 1111 if (res < 0) { 1112 if (strict) 1113 return 0; 1114 len = os_strlcpy(buf, "CCMP TKIP WEP104 WEP40", buflen); 1115 if (len >= buflen) 1116 return -1; 1117 return len; 1118 } 1119 1120 if (capa->enc & WPA_DRIVER_CAPA_ENC_CCMP) { 1121 ret = os_snprintf(pos, end - pos, "%sCCMP", first ? "" : " "); 1122 if (ret < 0 || ret >= end - pos) 1123 return pos - buf; 1124 pos += ret; 1125 first = 0; 1126 } 1127 1128 if (capa->enc & WPA_DRIVER_CAPA_ENC_TKIP) { 1129 ret = os_snprintf(pos, end - pos, "%sTKIP", first ? "" : " "); 1130 if (ret < 0 || ret >= end - pos) 1131 return pos - buf; 1132 pos += ret; 1133 first = 0; 1134 } 1135 1136 if (capa->enc & WPA_DRIVER_CAPA_ENC_WEP104) { 1137 ret = os_snprintf(pos, end - pos, "%sWEP104", 1138 first ? "" : " "); 1139 if (ret < 0 || ret >= end - pos) 1140 return pos - buf; 1141 pos += ret; 1142 first = 0; 1143 } 1144 1145 if (capa->enc & WPA_DRIVER_CAPA_ENC_WEP40) { 1146 ret = os_snprintf(pos, end - pos, "%sWEP40", first ? "" : " "); 1147 if (ret < 0 || ret >= end - pos) 1148 return pos - buf; 1149 pos += ret; 1150 first = 0; 1151 } 1152 1153 return pos - buf; 1154 } 1155 1156 1157 static int ctrl_iface_get_capability_key_mgmt(int res, char *strict, 1158 struct wpa_driver_capa *capa, 1159 char *buf, size_t buflen) 1160 { 1161 int ret; 1162 char *pos, *end; 1163 size_t len; 1164 1165 pos = buf; 1166 end = pos + buflen; 1167 1168 if (res < 0) { 1169 if (strict) 1170 return 0; 1171 len = os_strlcpy(buf, "WPA-PSK WPA-EAP IEEE8021X WPA-NONE " 1172 "NONE", buflen); 1173 if (len >= buflen) 1174 return -1; 1175 return len; 1176 } 1177 1178 ret = os_snprintf(pos, end - pos, "NONE IEEE8021X"); 1179 if (ret < 0 || ret >= end - pos) 1180 return pos - buf; 1181 pos += ret; 1182 1183 if (capa->key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA | 1184 WPA_DRIVER_CAPA_KEY_MGMT_WPA2)) { 1185 ret = os_snprintf(pos, end - pos, " WPA-EAP"); 1186 if (ret < 0 || ret >= end - pos) 1187 return pos - buf; 1188 pos += ret; 1189 } 1190 1191 if (capa->key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK | 1192 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) { 1193 ret = os_snprintf(pos, end - pos, " WPA-PSK"); 1194 if (ret < 0 || ret >= end - pos) 1195 return pos - buf; 1196 pos += ret; 1197 } 1198 1199 if (capa->key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) { 1200 ret = os_snprintf(pos, end - pos, " WPA-NONE"); 1201 if (ret < 0 || ret >= end - pos) 1202 return pos - buf; 1203 pos += ret; 1204 } 1205 1206 return pos - buf; 1207 } 1208 1209 1210 static int ctrl_iface_get_capability_proto(int res, char *strict, 1211 struct wpa_driver_capa *capa, 1212 char *buf, size_t buflen) 1213 { 1214 int ret, first = 1; 1215 char *pos, *end; 1216 size_t len; 1217 1218 pos = buf; 1219 end = pos + buflen; 1220 1221 if (res < 0) { 1222 if (strict) 1223 return 0; 1224 len = os_strlcpy(buf, "RSN WPA", buflen); 1225 if (len >= buflen) 1226 return -1; 1227 return len; 1228 } 1229 1230 if (capa->key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA2 | 1231 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) { 1232 ret = os_snprintf(pos, end - pos, "%sRSN", first ? "" : " "); 1233 if (ret < 0 || ret >= end - pos) 1234 return pos - buf; 1235 pos += ret; 1236 first = 0; 1237 } 1238 1239 if (capa->key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA | 1240 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK)) { 1241 ret = os_snprintf(pos, end - pos, "%sWPA", first ? "" : " "); 1242 if (ret < 0 || ret >= end - pos) 1243 return pos - buf; 1244 pos += ret; 1245 first = 0; 1246 } 1247 1248 return pos - buf; 1249 } 1250 1251 1252 static int ctrl_iface_get_capability_auth_alg(int res, char *strict, 1253 struct wpa_driver_capa *capa, 1254 char *buf, size_t buflen) 1255 { 1256 int ret, first = 1; 1257 char *pos, *end; 1258 size_t len; 1259 1260 pos = buf; 1261 end = pos + buflen; 1262 1263 if (res < 0) { 1264 if (strict) 1265 return 0; 1266 len = os_strlcpy(buf, "OPEN SHARED LEAP", buflen); 1267 if (len >= buflen) 1268 return -1; 1269 return len; 1270 } 1271 1272 if (capa->auth & (WPA_DRIVER_AUTH_OPEN)) { 1273 ret = os_snprintf(pos, end - pos, "%sOPEN", first ? "" : " "); 1274 if (ret < 0 || ret >= end - pos) 1275 return pos - buf; 1276 pos += ret; 1277 first = 0; 1278 } 1279 1280 if (capa->auth & (WPA_DRIVER_AUTH_SHARED)) { 1281 ret = os_snprintf(pos, end - pos, "%sSHARED", 1282 first ? "" : " "); 1283 if (ret < 0 || ret >= end - pos) 1284 return pos - buf; 1285 pos += ret; 1286 first = 0; 1287 } 1288 1289 if (capa->auth & (WPA_DRIVER_AUTH_LEAP)) { 1290 ret = os_snprintf(pos, end - pos, "%sLEAP", first ? "" : " "); 1291 if (ret < 0 || ret >= end - pos) 1292 return pos - buf; 1293 pos += ret; 1294 first = 0; 1295 } 1296 1297 return pos - buf; 1298 } 1299 1300 1301 static int wpa_supplicant_ctrl_iface_get_capability( 1302 struct wpa_supplicant *wpa_s, const char *_field, char *buf, 1303 size_t buflen) 1304 { 1305 struct wpa_driver_capa capa; 1306 int res; 1307 char *strict; 1308 char field[30]; 1309 size_t len; 1310 1311 /* Determine whether or not strict checking was requested */ 1312 len = os_strlcpy(field, _field, sizeof(field)); 1313 if (len >= sizeof(field)) 1314 return -1; 1315 strict = os_strchr(field, ' '); 1316 if (strict != NULL) { 1317 *strict++ = '\0'; 1318 if (os_strcmp(strict, "strict") != 0) 1319 return -1; 1320 } 1321 1322 wpa_printf(MSG_DEBUG, "CTRL_IFACE: GET_CAPABILITY '%s' %s", 1323 field, strict ? strict : ""); 1324 1325 if (os_strcmp(field, "eap") == 0) { 1326 return eap_get_names(buf, buflen); 1327 } 1328 1329 res = wpa_drv_get_capa(wpa_s, &capa); 1330 1331 if (os_strcmp(field, "pairwise") == 0) 1332 return ctrl_iface_get_capability_pairwise(res, strict, &capa, 1333 buf, buflen); 1334 1335 if (os_strcmp(field, "group") == 0) 1336 return ctrl_iface_get_capability_group(res, strict, &capa, 1337 buf, buflen); 1338 1339 if (os_strcmp(field, "key_mgmt") == 0) 1340 return ctrl_iface_get_capability_key_mgmt(res, strict, &capa, 1341 buf, buflen); 1342 1343 if (os_strcmp(field, "proto") == 0) 1344 return ctrl_iface_get_capability_proto(res, strict, &capa, 1345 buf, buflen); 1346 1347 if (os_strcmp(field, "auth_alg") == 0) 1348 return ctrl_iface_get_capability_auth_alg(res, strict, &capa, 1349 buf, buflen); 1350 1351 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown GET_CAPABILITY field '%s'", 1352 field); 1353 1354 return -1; 1355 } 1356 1357 1358 static int wpa_supplicant_ctrl_iface_bss(struct wpa_supplicant *wpa_s, 1359 const char *cmd, char *buf, 1360 size_t buflen) 1361 { 1362 u8 bssid[ETH_ALEN]; 1363 size_t i; 1364 struct wpa_scan_results *results; 1365 struct wpa_scan_res *bss; 1366 int ret; 1367 char *pos, *end; 1368 const u8 *ie, *ie2; 1369 1370 if (wpa_s->scan_res == NULL && 1371 wpa_supplicant_get_scan_results(wpa_s) < 0) 1372 return 0; 1373 1374 results = wpa_s->scan_res; 1375 if (results == NULL) 1376 return 0; 1377 1378 if (hwaddr_aton(cmd, bssid) == 0) { 1379 for (i = 0; i < results->num; i++) { 1380 if (os_memcmp(bssid, results->res[i]->bssid, ETH_ALEN) 1381 == 0) 1382 break; 1383 } 1384 } else 1385 i = atoi(cmd); 1386 1387 if (i >= results->num || results->res[i] == NULL) 1388 return 0; /* no match found */ 1389 1390 bss = results->res[i]; 1391 pos = buf; 1392 end = buf + buflen; 1393 ret = os_snprintf(pos, end - pos, 1394 "bssid=" MACSTR "\n" 1395 "freq=%d\n" 1396 "beacon_int=%d\n" 1397 "capabilities=0x%04x\n" 1398 "qual=%d\n" 1399 "noise=%d\n" 1400 "level=%d\n" 1401 "tsf=%016llu\n" 1402 "ie=", 1403 MAC2STR(bss->bssid), bss->freq, bss->beacon_int, 1404 bss->caps, bss->qual, bss->noise, bss->level, 1405 (unsigned long long) bss->tsf); 1406 if (ret < 0 || ret >= end - pos) 1407 return pos - buf; 1408 pos += ret; 1409 1410 ie = (const u8 *) (bss + 1); 1411 for (i = 0; i < bss->ie_len; i++) { 1412 ret = os_snprintf(pos, end - pos, "%02x", *ie++); 1413 if (ret < 0 || ret >= end - pos) 1414 return pos - buf; 1415 pos += ret; 1416 } 1417 1418 ret = os_snprintf(pos, end - pos, "\n"); 1419 if (ret < 0 || ret >= end - pos) 1420 return pos - buf; 1421 pos += ret; 1422 1423 ret = os_snprintf(pos, end - pos, "flags="); 1424 if (ret < 0 || ret >= end - pos) 1425 return pos - buf; 1426 pos += ret; 1427 1428 ie = wpa_scan_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE); 1429 if (ie) 1430 pos = wpa_supplicant_ie_txt(pos, end, "WPA", ie, 2 + ie[1]); 1431 ie2 = wpa_scan_get_ie(bss, WLAN_EID_RSN); 1432 if (ie2) 1433 pos = wpa_supplicant_ie_txt(pos, end, "WPA2", ie2, 2 + ie2[1]); 1434 pos = wpa_supplicant_wps_ie_txt(pos, end, bss); 1435 if (!ie && !ie2 && bss->caps & IEEE80211_CAP_PRIVACY) { 1436 ret = os_snprintf(pos, end - pos, "[WEP]"); 1437 if (ret < 0 || ret >= end - pos) 1438 return pos - buf; 1439 pos += ret; 1440 } 1441 if (bss->caps & IEEE80211_CAP_IBSS) { 1442 ret = os_snprintf(pos, end - pos, "[IBSS]"); 1443 if (ret < 0 || ret >= end - pos) 1444 return pos - buf; 1445 pos += ret; 1446 } 1447 1448 ret = os_snprintf(pos, end - pos, "\n"); 1449 if (ret < 0 || ret >= end - pos) 1450 return pos - buf; 1451 pos += ret; 1452 1453 ie = wpa_scan_get_ie(bss, WLAN_EID_SSID); 1454 ret = os_snprintf(pos, end - pos, "ssid=%s\n", 1455 ie ? wpa_ssid_txt(ie + 2, ie[1]) : ""); 1456 if (ret < 0 || ret >= end - pos) 1457 return pos - buf; 1458 pos += ret; 1459 1460 return pos - buf; 1461 } 1462 1463 1464 static int wpa_supplicant_ctrl_iface_ap_scan( 1465 struct wpa_supplicant *wpa_s, char *cmd) 1466 { 1467 int ap_scan = atoi(cmd); 1468 1469 if (ap_scan < 0 || ap_scan > 2) 1470 return -1; 1471 wpa_s->conf->ap_scan = ap_scan; 1472 return 0; 1473 } 1474 1475 1476 char * wpa_supplicant_ctrl_iface_process(struct wpa_supplicant *wpa_s, 1477 char *buf, size_t *resp_len) 1478 { 1479 char *reply; 1480 const int reply_size = 2048; 1481 int ctrl_rsp = 0; 1482 int reply_len; 1483 1484 if (os_strncmp(buf, WPA_CTRL_RSP, os_strlen(WPA_CTRL_RSP)) == 0 || 1485 os_strncmp(buf, "SET_NETWORK ", 12) == 0) { 1486 wpa_hexdump_ascii_key(MSG_DEBUG, "RX ctrl_iface", 1487 (const u8 *) buf, os_strlen(buf)); 1488 } else { 1489 wpa_hexdump_ascii(MSG_DEBUG, "RX ctrl_iface", 1490 (const u8 *) buf, os_strlen(buf)); 1491 } 1492 1493 reply = os_malloc(reply_size); 1494 if (reply == NULL) { 1495 *resp_len = 1; 1496 return NULL; 1497 } 1498 1499 os_memcpy(reply, "OK\n", 3); 1500 reply_len = 3; 1501 1502 if (os_strcmp(buf, "PING") == 0) { 1503 os_memcpy(reply, "PONG\n", 5); 1504 reply_len = 5; 1505 } else if (os_strcmp(buf, "MIB") == 0) { 1506 reply_len = wpa_sm_get_mib(wpa_s->wpa, reply, reply_size); 1507 if (reply_len >= 0) { 1508 int res; 1509 res = eapol_sm_get_mib(wpa_s->eapol, reply + reply_len, 1510 reply_size - reply_len); 1511 if (res < 0) 1512 reply_len = -1; 1513 else 1514 reply_len += res; 1515 } 1516 } else if (os_strncmp(buf, "STATUS", 6) == 0) { 1517 reply_len = wpa_supplicant_ctrl_iface_status( 1518 wpa_s, buf + 6, reply, reply_size); 1519 } else if (os_strcmp(buf, "PMKSA") == 0) { 1520 reply_len = pmksa_cache_list(wpa_s->wpa, reply, reply_size); 1521 } else if (os_strncmp(buf, "SET ", 4) == 0) { 1522 if (wpa_supplicant_ctrl_iface_set(wpa_s, buf + 4)) 1523 reply_len = -1; 1524 } else if (os_strcmp(buf, "LOGON") == 0) { 1525 eapol_sm_notify_logoff(wpa_s->eapol, FALSE); 1526 } else if (os_strcmp(buf, "LOGOFF") == 0) { 1527 eapol_sm_notify_logoff(wpa_s->eapol, TRUE); 1528 } else if (os_strcmp(buf, "REASSOCIATE") == 0) { 1529 wpa_s->disconnected = 0; 1530 wpa_s->reassociate = 1; 1531 wpa_supplicant_req_scan(wpa_s, 0, 0); 1532 } else if (os_strcmp(buf, "RECONNECT") == 0) { 1533 if (wpa_s->disconnected) { 1534 wpa_s->disconnected = 0; 1535 wpa_s->reassociate = 1; 1536 wpa_supplicant_req_scan(wpa_s, 0, 0); 1537 } 1538 #ifdef IEEE8021X_EAPOL 1539 } else if (os_strncmp(buf, "PREAUTH ", 8) == 0) { 1540 if (wpa_supplicant_ctrl_iface_preauth(wpa_s, buf + 8)) 1541 reply_len = -1; 1542 #endif /* IEEE8021X_EAPOL */ 1543 #ifdef CONFIG_PEERKEY 1544 } else if (os_strncmp(buf, "STKSTART ", 9) == 0) { 1545 if (wpa_supplicant_ctrl_iface_stkstart(wpa_s, buf + 9)) 1546 reply_len = -1; 1547 #endif /* CONFIG_PEERKEY */ 1548 #ifdef CONFIG_IEEE80211R 1549 } else if (os_strncmp(buf, "FT_DS ", 6) == 0) { 1550 if (wpa_supplicant_ctrl_iface_ft_ds(wpa_s, buf + 6)) 1551 reply_len = -1; 1552 #endif /* CONFIG_IEEE80211R */ 1553 #ifdef CONFIG_WPS 1554 } else if (os_strcmp(buf, "WPS_PBC") == 0) { 1555 if (wpa_supplicant_ctrl_iface_wps_pbc(wpa_s, NULL)) 1556 reply_len = -1; 1557 } else if (os_strncmp(buf, "WPS_PBC ", 8) == 0) { 1558 if (wpa_supplicant_ctrl_iface_wps_pbc(wpa_s, buf + 8)) 1559 reply_len = -1; 1560 } else if (os_strncmp(buf, "WPS_PIN ", 8) == 0) { 1561 reply_len = wpa_supplicant_ctrl_iface_wps_pin(wpa_s, buf + 8, 1562 reply, 1563 reply_size); 1564 } else if (os_strncmp(buf, "WPS_REG ", 8) == 0) { 1565 if (wpa_supplicant_ctrl_iface_wps_reg(wpa_s, buf + 8)) 1566 reply_len = -1; 1567 #endif /* CONFIG_WPS */ 1568 } else if (os_strncmp(buf, WPA_CTRL_RSP, os_strlen(WPA_CTRL_RSP)) == 0) 1569 { 1570 if (wpa_supplicant_ctrl_iface_ctrl_rsp( 1571 wpa_s, buf + os_strlen(WPA_CTRL_RSP))) 1572 reply_len = -1; 1573 else 1574 ctrl_rsp = 1; 1575 } else if (os_strcmp(buf, "RECONFIGURE") == 0) { 1576 if (wpa_supplicant_reload_configuration(wpa_s)) 1577 reply_len = -1; 1578 } else if (os_strcmp(buf, "TERMINATE") == 0) { 1579 eloop_terminate(); 1580 } else if (os_strncmp(buf, "BSSID ", 6) == 0) { 1581 if (wpa_supplicant_ctrl_iface_bssid(wpa_s, buf + 6)) 1582 reply_len = -1; 1583 } else if (os_strcmp(buf, "LIST_NETWORKS") == 0) { 1584 reply_len = wpa_supplicant_ctrl_iface_list_networks( 1585 wpa_s, reply, reply_size); 1586 } else if (os_strcmp(buf, "DISCONNECT") == 0) { 1587 wpa_s->reassociate = 0; 1588 wpa_s->disconnected = 1; 1589 wpa_supplicant_disassociate(wpa_s, WLAN_REASON_DEAUTH_LEAVING); 1590 } else if (os_strcmp(buf, "SCAN") == 0) { 1591 wpa_s->scan_req = 2; 1592 wpa_supplicant_req_scan(wpa_s, 0, 0); 1593 } else if (os_strcmp(buf, "SCAN_RESULTS") == 0) { 1594 reply_len = wpa_supplicant_ctrl_iface_scan_results( 1595 wpa_s, reply, reply_size); 1596 } else if (os_strncmp(buf, "SELECT_NETWORK ", 15) == 0) { 1597 if (wpa_supplicant_ctrl_iface_select_network(wpa_s, buf + 15)) 1598 reply_len = -1; 1599 } else if (os_strncmp(buf, "ENABLE_NETWORK ", 15) == 0) { 1600 if (wpa_supplicant_ctrl_iface_enable_network(wpa_s, buf + 15)) 1601 reply_len = -1; 1602 } else if (os_strncmp(buf, "DISABLE_NETWORK ", 16) == 0) { 1603 if (wpa_supplicant_ctrl_iface_disable_network(wpa_s, buf + 16)) 1604 reply_len = -1; 1605 } else if (os_strcmp(buf, "ADD_NETWORK") == 0) { 1606 reply_len = wpa_supplicant_ctrl_iface_add_network( 1607 wpa_s, reply, reply_size); 1608 } else if (os_strncmp(buf, "REMOVE_NETWORK ", 15) == 0) { 1609 if (wpa_supplicant_ctrl_iface_remove_network(wpa_s, buf + 15)) 1610 reply_len = -1; 1611 } else if (os_strncmp(buf, "SET_NETWORK ", 12) == 0) { 1612 if (wpa_supplicant_ctrl_iface_set_network(wpa_s, buf + 12)) 1613 reply_len = -1; 1614 } else if (os_strncmp(buf, "GET_NETWORK ", 12) == 0) { 1615 reply_len = wpa_supplicant_ctrl_iface_get_network( 1616 wpa_s, buf + 12, reply, reply_size); 1617 #ifndef CONFIG_NO_CONFIG_WRITE 1618 } else if (os_strcmp(buf, "SAVE_CONFIG") == 0) { 1619 if (wpa_supplicant_ctrl_iface_save_config(wpa_s)) 1620 reply_len = -1; 1621 #endif /* CONFIG_NO_CONFIG_WRITE */ 1622 } else if (os_strncmp(buf, "GET_CAPABILITY ", 15) == 0) { 1623 reply_len = wpa_supplicant_ctrl_iface_get_capability( 1624 wpa_s, buf + 15, reply, reply_size); 1625 } else if (os_strncmp(buf, "AP_SCAN ", 8) == 0) { 1626 if (wpa_supplicant_ctrl_iface_ap_scan(wpa_s, buf + 8)) 1627 reply_len = -1; 1628 } else if (os_strcmp(buf, "INTERFACE_LIST") == 0) { 1629 reply_len = wpa_supplicant_global_iface_list( 1630 wpa_s->global, reply, reply_size); 1631 } else if (os_strcmp(buf, "INTERFACES") == 0) { 1632 reply_len = wpa_supplicant_global_iface_interfaces( 1633 wpa_s->global, reply, reply_size); 1634 } else if (os_strncmp(buf, "BSS ", 4) == 0) { 1635 reply_len = wpa_supplicant_ctrl_iface_bss( 1636 wpa_s, buf + 4, reply, reply_size); 1637 } else { 1638 os_memcpy(reply, "UNKNOWN COMMAND\n", 16); 1639 reply_len = 16; 1640 } 1641 1642 if (reply_len < 0) { 1643 os_memcpy(reply, "FAIL\n", 5); 1644 reply_len = 5; 1645 } 1646 1647 if (ctrl_rsp) 1648 eapol_sm_notify_ctrl_response(wpa_s->eapol); 1649 1650 *resp_len = reply_len; 1651 return reply; 1652 } 1653 1654 1655 static int wpa_supplicant_global_iface_add(struct wpa_global *global, 1656 char *cmd) 1657 { 1658 struct wpa_interface iface; 1659 char *pos; 1660 1661 /* 1662 * <ifname>TAB<confname>TAB<driver>TAB<ctrl_interface>TAB<driver_param> 1663 * TAB<bridge_ifname> 1664 */ 1665 wpa_printf(MSG_DEBUG, "CTRL_IFACE GLOBAL INTERFACE_ADD '%s'", cmd); 1666 1667 os_memset(&iface, 0, sizeof(iface)); 1668 1669 do { 1670 iface.ifname = pos = cmd; 1671 pos = os_strchr(pos, '\t'); 1672 if (pos) 1673 *pos++ = '\0'; 1674 if (iface.ifname[0] == '\0') 1675 return -1; 1676 if (pos == NULL) 1677 break; 1678 1679 iface.confname = pos; 1680 pos = os_strchr(pos, '\t'); 1681 if (pos) 1682 *pos++ = '\0'; 1683 if (iface.confname[0] == '\0') 1684 iface.confname = NULL; 1685 if (pos == NULL) 1686 break; 1687 1688 iface.driver = pos; 1689 pos = os_strchr(pos, '\t'); 1690 if (pos) 1691 *pos++ = '\0'; 1692 if (iface.driver[0] == '\0') 1693 iface.driver = NULL; 1694 if (pos == NULL) 1695 break; 1696 1697 iface.ctrl_interface = pos; 1698 pos = os_strchr(pos, '\t'); 1699 if (pos) 1700 *pos++ = '\0'; 1701 if (iface.ctrl_interface[0] == '\0') 1702 iface.ctrl_interface = NULL; 1703 if (pos == NULL) 1704 break; 1705 1706 iface.driver_param = pos; 1707 pos = os_strchr(pos, '\t'); 1708 if (pos) 1709 *pos++ = '\0'; 1710 if (iface.driver_param[0] == '\0') 1711 iface.driver_param = NULL; 1712 if (pos == NULL) 1713 break; 1714 1715 iface.bridge_ifname = pos; 1716 pos = os_strchr(pos, '\t'); 1717 if (pos) 1718 *pos++ = '\0'; 1719 if (iface.bridge_ifname[0] == '\0') 1720 iface.bridge_ifname = NULL; 1721 if (pos == NULL) 1722 break; 1723 } while (0); 1724 1725 if (wpa_supplicant_get_iface(global, iface.ifname)) 1726 return -1; 1727 1728 return wpa_supplicant_add_iface(global, &iface) ? 0 : -1; 1729 } 1730 1731 1732 static int wpa_supplicant_global_iface_remove(struct wpa_global *global, 1733 char *cmd) 1734 { 1735 struct wpa_supplicant *wpa_s; 1736 1737 wpa_printf(MSG_DEBUG, "CTRL_IFACE GLOBAL INTERFACE_REMOVE '%s'", cmd); 1738 1739 wpa_s = wpa_supplicant_get_iface(global, cmd); 1740 if (wpa_s == NULL) 1741 return -1; 1742 return wpa_supplicant_remove_iface(global, wpa_s); 1743 } 1744 1745 1746 static void wpa_free_iface_info(struct wpa_interface_info *iface) 1747 { 1748 struct wpa_interface_info *prev; 1749 1750 while (iface) { 1751 prev = iface; 1752 iface = iface->next; 1753 1754 os_free(prev->ifname); 1755 os_free(prev->desc); 1756 os_free(prev); 1757 } 1758 } 1759 1760 1761 static int wpa_supplicant_global_iface_list(struct wpa_global *global, 1762 char *buf, int len) 1763 { 1764 int i, res; 1765 struct wpa_interface_info *iface = NULL, *last = NULL, *tmp; 1766 char *pos, *end; 1767 1768 for (i = 0; wpa_supplicant_drivers[i]; i++) { 1769 struct wpa_driver_ops *drv = wpa_supplicant_drivers[i]; 1770 if (drv->get_interfaces == NULL) 1771 continue; 1772 tmp = drv->get_interfaces(global->drv_priv); 1773 if (tmp == NULL) 1774 continue; 1775 1776 if (last == NULL) 1777 iface = last = tmp; 1778 else 1779 last->next = tmp; 1780 while (last->next) 1781 last = last->next; 1782 } 1783 1784 pos = buf; 1785 end = buf + len; 1786 for (tmp = iface; tmp; tmp = tmp->next) { 1787 res = os_snprintf(pos, end - pos, "%s\t%s\t%s\n", 1788 tmp->drv_name, tmp->ifname, 1789 tmp->desc ? tmp->desc : ""); 1790 if (res < 0 || res >= end - pos) { 1791 *pos = '\0'; 1792 break; 1793 } 1794 pos += res; 1795 } 1796 1797 wpa_free_iface_info(iface); 1798 1799 return pos - buf; 1800 } 1801 1802 1803 static int wpa_supplicant_global_iface_interfaces(struct wpa_global *global, 1804 char *buf, int len) 1805 { 1806 int res; 1807 char *pos, *end; 1808 struct wpa_supplicant *wpa_s; 1809 1810 wpa_s = global->ifaces; 1811 pos = buf; 1812 end = buf + len; 1813 1814 while (wpa_s) { 1815 res = os_snprintf(pos, end - pos, "%s\n", wpa_s->ifname); 1816 if (res < 0 || res >= end - pos) { 1817 *pos = '\0'; 1818 break; 1819 } 1820 pos += res; 1821 wpa_s = wpa_s->next; 1822 } 1823 return pos - buf; 1824 } 1825 1826 1827 char * wpa_supplicant_global_ctrl_iface_process(struct wpa_global *global, 1828 char *buf, size_t *resp_len) 1829 { 1830 char *reply; 1831 const int reply_size = 2048; 1832 int reply_len; 1833 1834 wpa_hexdump_ascii(MSG_DEBUG, "RX global ctrl_iface", 1835 (const u8 *) buf, os_strlen(buf)); 1836 1837 reply = os_malloc(reply_size); 1838 if (reply == NULL) { 1839 *resp_len = 1; 1840 return NULL; 1841 } 1842 1843 os_memcpy(reply, "OK\n", 3); 1844 reply_len = 3; 1845 1846 if (os_strcmp(buf, "PING") == 0) { 1847 os_memcpy(reply, "PONG\n", 5); 1848 reply_len = 5; 1849 } else if (os_strncmp(buf, "INTERFACE_ADD ", 14) == 0) { 1850 if (wpa_supplicant_global_iface_add(global, buf + 14)) 1851 reply_len = -1; 1852 } else if (os_strncmp(buf, "INTERFACE_REMOVE ", 17) == 0) { 1853 if (wpa_supplicant_global_iface_remove(global, buf + 17)) 1854 reply_len = -1; 1855 } else if (os_strcmp(buf, "INTERFACE_LIST") == 0) { 1856 reply_len = wpa_supplicant_global_iface_list( 1857 global, reply, reply_size); 1858 } else if (os_strcmp(buf, "INTERFACES") == 0) { 1859 reply_len = wpa_supplicant_global_iface_interfaces( 1860 global, reply, reply_size); 1861 } else if (os_strcmp(buf, "TERMINATE") == 0) { 1862 eloop_terminate(); 1863 } else { 1864 os_memcpy(reply, "UNKNOWN COMMAND\n", 16); 1865 reply_len = 16; 1866 } 1867 1868 if (reply_len < 0) { 1869 os_memcpy(reply, "FAIL\n", 5); 1870 reply_len = 5; 1871 } 1872 1873 *resp_len = reply_len; 1874 return reply; 1875 } 1876