1 /* 2 * hostapd / UNIX domain socket -based control interface 3 * Copyright (c) 2004-2018, Jouni Malinen <j@w1.fi> 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 */ 8 9 #include "utils/includes.h" 10 11 #ifndef CONFIG_NATIVE_WINDOWS 12 13 #ifdef CONFIG_TESTING_OPTIONS 14 #ifdef __NetBSD__ 15 #include <net/if_ether.h> 16 #else 17 #include <net/ethernet.h> 18 #endif 19 #include <netinet/ip.h> 20 #endif /* CONFIG_TESTING_OPTIONS */ 21 22 #include <sys/un.h> 23 #include <sys/stat.h> 24 #include <stddef.h> 25 26 #ifdef CONFIG_CTRL_IFACE_UDP 27 #include <netdb.h> 28 #endif /* CONFIG_CTRL_IFACE_UDP */ 29 30 #include "utils/common.h" 31 #include "utils/eloop.h" 32 #include "utils/module_tests.h" 33 #include "common/version.h" 34 #include "common/ieee802_11_defs.h" 35 #include "common/ctrl_iface_common.h" 36 #ifdef CONFIG_DPP 37 #include "common/dpp.h" 38 #endif /* CONFIG_DPP */ 39 #include "common/wpa_ctrl.h" 40 #include "common/ptksa_cache.h" 41 #include "crypto/tls.h" 42 #include "drivers/driver.h" 43 #include "eapol_auth/eapol_auth_sm.h" 44 #include "radius/radius_client.h" 45 #include "radius/radius_server.h" 46 #include "l2_packet/l2_packet.h" 47 #include "ap/hostapd.h" 48 #include "ap/ap_config.h" 49 #include "ap/ieee802_1x.h" 50 #include "ap/wpa_auth.h" 51 #include "ap/pmksa_cache_auth.h" 52 #include "ap/ieee802_11.h" 53 #include "ap/sta_info.h" 54 #include "ap/wps_hostapd.h" 55 #include "ap/ctrl_iface_ap.h" 56 #include "ap/ap_drv_ops.h" 57 #include "ap/hs20.h" 58 #include "ap/wnm_ap.h" 59 #include "ap/wpa_auth.h" 60 #include "ap/beacon.h" 61 #include "ap/neighbor_db.h" 62 #include "ap/rrm.h" 63 #include "ap/dpp_hostapd.h" 64 #include "ap/dfs.h" 65 #include "wps/wps_defs.h" 66 #include "wps/wps.h" 67 #include "fst/fst_ctrl_iface.h" 68 #include "config_file.h" 69 #include "ctrl_iface.h" 70 71 72 #define HOSTAPD_CLI_DUP_VALUE_MAX_LEN 256 73 74 #ifdef CONFIG_CTRL_IFACE_UDP 75 #define HOSTAPD_CTRL_IFACE_PORT 8877 76 #define HOSTAPD_CTRL_IFACE_PORT_LIMIT 50 77 #define HOSTAPD_GLOBAL_CTRL_IFACE_PORT 8878 78 #define HOSTAPD_GLOBAL_CTRL_IFACE_PORT_LIMIT 50 79 #endif /* CONFIG_CTRL_IFACE_UDP */ 80 81 static void hostapd_ctrl_iface_send(struct hostapd_data *hapd, int level, 82 enum wpa_msg_type type, 83 const char *buf, size_t len); 84 85 86 static int hostapd_ctrl_iface_attach(struct hostapd_data *hapd, 87 struct sockaddr_storage *from, 88 socklen_t fromlen, const char *input) 89 { 90 return ctrl_iface_attach(&hapd->ctrl_dst, from, fromlen, input); 91 } 92 93 94 static int hostapd_ctrl_iface_detach(struct hostapd_data *hapd, 95 struct sockaddr_storage *from, 96 socklen_t fromlen) 97 { 98 return ctrl_iface_detach(&hapd->ctrl_dst, from, fromlen); 99 } 100 101 102 static int hostapd_ctrl_iface_level(struct hostapd_data *hapd, 103 struct sockaddr_storage *from, 104 socklen_t fromlen, 105 char *level) 106 { 107 return ctrl_iface_level(&hapd->ctrl_dst, from, fromlen, level); 108 } 109 110 111 static int hostapd_ctrl_iface_new_sta(struct hostapd_data *hapd, 112 const char *txtaddr) 113 { 114 u8 addr[ETH_ALEN]; 115 struct sta_info *sta; 116 117 wpa_printf(MSG_DEBUG, "CTRL_IFACE NEW_STA %s", txtaddr); 118 119 if (hwaddr_aton(txtaddr, addr)) 120 return -1; 121 122 sta = ap_get_sta(hapd, addr); 123 if (sta) 124 return 0; 125 126 wpa_printf(MSG_DEBUG, "Add new STA " MACSTR " based on ctrl_iface " 127 "notification", MAC2STR(addr)); 128 sta = ap_sta_add(hapd, addr); 129 if (sta == NULL) 130 return -1; 131 132 hostapd_new_assoc_sta(hapd, sta, 0); 133 return 0; 134 } 135 136 137 #ifdef NEED_AP_MLME 138 static int hostapd_ctrl_iface_sa_query(struct hostapd_data *hapd, 139 const char *txtaddr) 140 { 141 u8 addr[ETH_ALEN]; 142 u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN]; 143 144 wpa_printf(MSG_DEBUG, "CTRL_IFACE SA_QUERY %s", txtaddr); 145 146 if (hwaddr_aton(txtaddr, addr) || 147 os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0) 148 return -1; 149 150 ieee802_11_send_sa_query_req(hapd, addr, trans_id); 151 152 return 0; 153 } 154 #endif /* NEED_AP_MLME */ 155 156 157 #ifdef CONFIG_WPS 158 static int hostapd_ctrl_iface_wps_pin(struct hostapd_data *hapd, char *txt) 159 { 160 char *pin = os_strchr(txt, ' '); 161 char *timeout_txt; 162 int timeout; 163 u8 addr_buf[ETH_ALEN], *addr = NULL; 164 char *pos; 165 166 if (pin == NULL) 167 return -1; 168 *pin++ = '\0'; 169 170 timeout_txt = os_strchr(pin, ' '); 171 if (timeout_txt) { 172 *timeout_txt++ = '\0'; 173 timeout = atoi(timeout_txt); 174 pos = os_strchr(timeout_txt, ' '); 175 if (pos) { 176 *pos++ = '\0'; 177 if (hwaddr_aton(pos, addr_buf) == 0) 178 addr = addr_buf; 179 } 180 } else 181 timeout = 0; 182 183 return hostapd_wps_add_pin(hapd, addr, txt, pin, timeout); 184 } 185 186 187 static int hostapd_ctrl_iface_wps_check_pin( 188 struct hostapd_data *hapd, char *cmd, char *buf, size_t buflen) 189 { 190 char pin[9]; 191 size_t len; 192 char *pos; 193 int ret; 194 195 wpa_hexdump_ascii_key(MSG_DEBUG, "WPS_CHECK_PIN", 196 (u8 *) cmd, os_strlen(cmd)); 197 for (pos = cmd, len = 0; *pos != '\0'; pos++) { 198 if (*pos < '0' || *pos > '9') 199 continue; 200 pin[len++] = *pos; 201 if (len == 9) { 202 wpa_printf(MSG_DEBUG, "WPS: Too long PIN"); 203 return -1; 204 } 205 } 206 if (len != 4 && len != 8) { 207 wpa_printf(MSG_DEBUG, "WPS: Invalid PIN length %d", (int) len); 208 return -1; 209 } 210 pin[len] = '\0'; 211 212 if (len == 8) { 213 unsigned int pin_val; 214 pin_val = atoi(pin); 215 if (!wps_pin_valid(pin_val)) { 216 wpa_printf(MSG_DEBUG, "WPS: Invalid checksum digit"); 217 ret = os_snprintf(buf, buflen, "FAIL-CHECKSUM\n"); 218 if (os_snprintf_error(buflen, ret)) 219 return -1; 220 return ret; 221 } 222 } 223 224 ret = os_snprintf(buf, buflen, "%s", pin); 225 if (os_snprintf_error(buflen, ret)) 226 return -1; 227 228 return ret; 229 } 230 231 232 #ifdef CONFIG_WPS_NFC 233 static int hostapd_ctrl_iface_wps_nfc_tag_read(struct hostapd_data *hapd, 234 char *pos) 235 { 236 size_t len; 237 struct wpabuf *buf; 238 int ret; 239 240 len = os_strlen(pos); 241 if (len & 0x01) 242 return -1; 243 len /= 2; 244 245 buf = wpabuf_alloc(len); 246 if (buf == NULL) 247 return -1; 248 if (hexstr2bin(pos, wpabuf_put(buf, len), len) < 0) { 249 wpabuf_free(buf); 250 return -1; 251 } 252 253 ret = hostapd_wps_nfc_tag_read(hapd, buf); 254 wpabuf_free(buf); 255 256 return ret; 257 } 258 259 260 static int hostapd_ctrl_iface_wps_nfc_config_token(struct hostapd_data *hapd, 261 char *cmd, char *reply, 262 size_t max_len) 263 { 264 int ndef; 265 struct wpabuf *buf; 266 int res; 267 268 if (os_strcmp(cmd, "WPS") == 0) 269 ndef = 0; 270 else if (os_strcmp(cmd, "NDEF") == 0) 271 ndef = 1; 272 else 273 return -1; 274 275 buf = hostapd_wps_nfc_config_token(hapd, ndef); 276 if (buf == NULL) 277 return -1; 278 279 res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf), 280 wpabuf_len(buf)); 281 reply[res++] = '\n'; 282 reply[res] = '\0'; 283 284 wpabuf_free(buf); 285 286 return res; 287 } 288 289 290 static int hostapd_ctrl_iface_wps_nfc_token_gen(struct hostapd_data *hapd, 291 char *reply, size_t max_len, 292 int ndef) 293 { 294 struct wpabuf *buf; 295 int res; 296 297 buf = hostapd_wps_nfc_token_gen(hapd, ndef); 298 if (buf == NULL) 299 return -1; 300 301 res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf), 302 wpabuf_len(buf)); 303 reply[res++] = '\n'; 304 reply[res] = '\0'; 305 306 wpabuf_free(buf); 307 308 return res; 309 } 310 311 312 static int hostapd_ctrl_iface_wps_nfc_token(struct hostapd_data *hapd, 313 char *cmd, char *reply, 314 size_t max_len) 315 { 316 if (os_strcmp(cmd, "WPS") == 0) 317 return hostapd_ctrl_iface_wps_nfc_token_gen(hapd, reply, 318 max_len, 0); 319 320 if (os_strcmp(cmd, "NDEF") == 0) 321 return hostapd_ctrl_iface_wps_nfc_token_gen(hapd, reply, 322 max_len, 1); 323 324 if (os_strcmp(cmd, "enable") == 0) 325 return hostapd_wps_nfc_token_enable(hapd); 326 327 if (os_strcmp(cmd, "disable") == 0) { 328 hostapd_wps_nfc_token_disable(hapd); 329 return 0; 330 } 331 332 return -1; 333 } 334 335 336 static int hostapd_ctrl_iface_nfc_get_handover_sel(struct hostapd_data *hapd, 337 char *cmd, char *reply, 338 size_t max_len) 339 { 340 struct wpabuf *buf; 341 int res; 342 char *pos; 343 int ndef; 344 345 pos = os_strchr(cmd, ' '); 346 if (pos == NULL) 347 return -1; 348 *pos++ = '\0'; 349 350 if (os_strcmp(cmd, "WPS") == 0) 351 ndef = 0; 352 else if (os_strcmp(cmd, "NDEF") == 0) 353 ndef = 1; 354 else 355 return -1; 356 357 if (os_strcmp(pos, "WPS-CR") == 0) 358 buf = hostapd_wps_nfc_hs_cr(hapd, ndef); 359 else 360 buf = NULL; 361 if (buf == NULL) 362 return -1; 363 364 res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf), 365 wpabuf_len(buf)); 366 reply[res++] = '\n'; 367 reply[res] = '\0'; 368 369 wpabuf_free(buf); 370 371 return res; 372 } 373 374 375 static int hostapd_ctrl_iface_nfc_report_handover(struct hostapd_data *hapd, 376 char *cmd) 377 { 378 size_t len; 379 struct wpabuf *req, *sel; 380 int ret; 381 char *pos, *role, *type, *pos2; 382 383 role = cmd; 384 pos = os_strchr(role, ' '); 385 if (pos == NULL) 386 return -1; 387 *pos++ = '\0'; 388 389 type = pos; 390 pos = os_strchr(type, ' '); 391 if (pos == NULL) 392 return -1; 393 *pos++ = '\0'; 394 395 pos2 = os_strchr(pos, ' '); 396 if (pos2 == NULL) 397 return -1; 398 *pos2++ = '\0'; 399 400 len = os_strlen(pos); 401 if (len & 0x01) 402 return -1; 403 len /= 2; 404 405 req = wpabuf_alloc(len); 406 if (req == NULL) 407 return -1; 408 if (hexstr2bin(pos, wpabuf_put(req, len), len) < 0) { 409 wpabuf_free(req); 410 return -1; 411 } 412 413 len = os_strlen(pos2); 414 if (len & 0x01) { 415 wpabuf_free(req); 416 return -1; 417 } 418 len /= 2; 419 420 sel = wpabuf_alloc(len); 421 if (sel == NULL) { 422 wpabuf_free(req); 423 return -1; 424 } 425 if (hexstr2bin(pos2, wpabuf_put(sel, len), len) < 0) { 426 wpabuf_free(req); 427 wpabuf_free(sel); 428 return -1; 429 } 430 431 if (os_strcmp(role, "RESP") == 0 && os_strcmp(type, "WPS") == 0) { 432 ret = hostapd_wps_nfc_report_handover(hapd, req, sel); 433 } else { 434 wpa_printf(MSG_DEBUG, "NFC: Unsupported connection handover " 435 "reported: role=%s type=%s", role, type); 436 ret = -1; 437 } 438 wpabuf_free(req); 439 wpabuf_free(sel); 440 441 return ret; 442 } 443 444 #endif /* CONFIG_WPS_NFC */ 445 446 447 static int hostapd_ctrl_iface_wps_ap_pin(struct hostapd_data *hapd, char *txt, 448 char *buf, size_t buflen) 449 { 450 int timeout = 300; 451 char *pos; 452 const char *pin_txt; 453 454 pos = os_strchr(txt, ' '); 455 if (pos) 456 *pos++ = '\0'; 457 458 if (os_strcmp(txt, "disable") == 0) { 459 hostapd_wps_ap_pin_disable(hapd); 460 return os_snprintf(buf, buflen, "OK\n"); 461 } 462 463 if (os_strcmp(txt, "random") == 0) { 464 if (pos) 465 timeout = atoi(pos); 466 pin_txt = hostapd_wps_ap_pin_random(hapd, timeout); 467 if (pin_txt == NULL) 468 return -1; 469 return os_snprintf(buf, buflen, "%s", pin_txt); 470 } 471 472 if (os_strcmp(txt, "get") == 0) { 473 pin_txt = hostapd_wps_ap_pin_get(hapd); 474 if (pin_txt == NULL) 475 return -1; 476 return os_snprintf(buf, buflen, "%s", pin_txt); 477 } 478 479 if (os_strcmp(txt, "set") == 0) { 480 char *pin; 481 if (pos == NULL) 482 return -1; 483 pin = pos; 484 pos = os_strchr(pos, ' '); 485 if (pos) { 486 *pos++ = '\0'; 487 timeout = atoi(pos); 488 } 489 if (os_strlen(pin) > buflen) 490 return -1; 491 if (hostapd_wps_ap_pin_set(hapd, pin, timeout) < 0) 492 return -1; 493 return os_snprintf(buf, buflen, "%s", pin); 494 } 495 496 return -1; 497 } 498 499 500 static int hostapd_ctrl_iface_wps_config(struct hostapd_data *hapd, char *txt) 501 { 502 char *pos; 503 char *ssid, *auth, *encr = NULL, *key = NULL; 504 505 ssid = txt; 506 pos = os_strchr(txt, ' '); 507 if (!pos) 508 return -1; 509 *pos++ = '\0'; 510 511 auth = pos; 512 pos = os_strchr(pos, ' '); 513 if (pos) { 514 *pos++ = '\0'; 515 encr = pos; 516 pos = os_strchr(pos, ' '); 517 if (pos) { 518 *pos++ = '\0'; 519 key = pos; 520 } 521 } 522 523 return hostapd_wps_config_ap(hapd, ssid, auth, encr, key); 524 } 525 526 527 static const char * pbc_status_str(enum pbc_status status) 528 { 529 switch (status) { 530 case WPS_PBC_STATUS_DISABLE: 531 return "Disabled"; 532 case WPS_PBC_STATUS_ACTIVE: 533 return "Active"; 534 case WPS_PBC_STATUS_TIMEOUT: 535 return "Timed-out"; 536 case WPS_PBC_STATUS_OVERLAP: 537 return "Overlap"; 538 default: 539 return "Unknown"; 540 } 541 } 542 543 544 static int hostapd_ctrl_iface_wps_get_status(struct hostapd_data *hapd, 545 char *buf, size_t buflen) 546 { 547 int ret; 548 char *pos, *end; 549 550 pos = buf; 551 end = buf + buflen; 552 553 ret = os_snprintf(pos, end - pos, "PBC Status: %s\n", 554 pbc_status_str(hapd->wps_stats.pbc_status)); 555 556 if (os_snprintf_error(end - pos, ret)) 557 return pos - buf; 558 pos += ret; 559 560 ret = os_snprintf(pos, end - pos, "Last WPS result: %s\n", 561 (hapd->wps_stats.status == WPS_STATUS_SUCCESS ? 562 "Success": 563 (hapd->wps_stats.status == WPS_STATUS_FAILURE ? 564 "Failed" : "None"))); 565 566 if (os_snprintf_error(end - pos, ret)) 567 return pos - buf; 568 pos += ret; 569 570 /* If status == Failure - Add possible Reasons */ 571 if(hapd->wps_stats.status == WPS_STATUS_FAILURE && 572 hapd->wps_stats.failure_reason > 0) { 573 ret = os_snprintf(pos, end - pos, 574 "Failure Reason: %s\n", 575 wps_ei_str(hapd->wps_stats.failure_reason)); 576 577 if (os_snprintf_error(end - pos, ret)) 578 return pos - buf; 579 pos += ret; 580 } 581 582 if (hapd->wps_stats.status) { 583 ret = os_snprintf(pos, end - pos, "Peer Address: " MACSTR "\n", 584 MAC2STR(hapd->wps_stats.peer_addr)); 585 586 if (os_snprintf_error(end - pos, ret)) 587 return pos - buf; 588 pos += ret; 589 } 590 591 return pos - buf; 592 } 593 594 #endif /* CONFIG_WPS */ 595 596 #ifdef CONFIG_HS20 597 598 static int hostapd_ctrl_iface_hs20_wnm_notif(struct hostapd_data *hapd, 599 const char *cmd) 600 { 601 u8 addr[ETH_ALEN]; 602 const char *url; 603 604 if (hwaddr_aton(cmd, addr)) 605 return -1; 606 url = cmd + 17; 607 if (*url == '\0') { 608 url = NULL; 609 } else { 610 if (*url != ' ') 611 return -1; 612 url++; 613 if (*url == '\0') 614 url = NULL; 615 } 616 617 return hs20_send_wnm_notification(hapd, addr, 1, url); 618 } 619 620 621 static int hostapd_ctrl_iface_hs20_deauth_req(struct hostapd_data *hapd, 622 const char *cmd) 623 { 624 u8 addr[ETH_ALEN]; 625 int code, reauth_delay, ret; 626 const char *pos; 627 size_t url_len; 628 struct wpabuf *req; 629 630 /* <STA MAC Addr> <Code(0/1)> <Re-auth-Delay(sec)> [URL] */ 631 if (hwaddr_aton(cmd, addr)) 632 return -1; 633 634 pos = os_strchr(cmd, ' '); 635 if (pos == NULL) 636 return -1; 637 pos++; 638 code = atoi(pos); 639 640 pos = os_strchr(pos, ' '); 641 if (pos == NULL) 642 return -1; 643 pos++; 644 reauth_delay = atoi(pos); 645 646 url_len = 0; 647 pos = os_strchr(pos, ' '); 648 if (pos) { 649 pos++; 650 url_len = os_strlen(pos); 651 } 652 653 req = wpabuf_alloc(4 + url_len); 654 if (req == NULL) 655 return -1; 656 wpabuf_put_u8(req, code); 657 wpabuf_put_le16(req, reauth_delay); 658 wpabuf_put_u8(req, url_len); 659 if (pos) 660 wpabuf_put_data(req, pos, url_len); 661 662 wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification to " MACSTR 663 " to indicate imminent deauthentication (code=%d " 664 "reauth_delay=%d)", MAC2STR(addr), code, reauth_delay); 665 ret = hs20_send_wnm_notification_deauth_req(hapd, addr, req); 666 wpabuf_free(req); 667 return ret; 668 } 669 670 #endif /* CONFIG_HS20 */ 671 672 673 #ifdef CONFIG_INTERWORKING 674 675 static int hostapd_ctrl_iface_set_qos_map_set(struct hostapd_data *hapd, 676 const char *cmd) 677 { 678 u8 qos_map_set[16 + 2 * 21], count = 0; 679 const char *pos = cmd; 680 int val, ret; 681 682 for (;;) { 683 if (count == sizeof(qos_map_set)) { 684 wpa_printf(MSG_ERROR, "Too many qos_map_set parameters"); 685 return -1; 686 } 687 688 val = atoi(pos); 689 if (val < 0 || val > 255) { 690 wpa_printf(MSG_INFO, "Invalid QoS Map Set"); 691 return -1; 692 } 693 694 qos_map_set[count++] = val; 695 pos = os_strchr(pos, ','); 696 if (!pos) 697 break; 698 pos++; 699 } 700 701 if (count < 16 || count & 1) { 702 wpa_printf(MSG_INFO, "Invalid QoS Map Set"); 703 return -1; 704 } 705 706 ret = hostapd_drv_set_qos_map(hapd, qos_map_set, count); 707 if (ret) { 708 wpa_printf(MSG_INFO, "Failed to set QoS Map Set"); 709 return -1; 710 } 711 712 os_memcpy(hapd->conf->qos_map_set, qos_map_set, count); 713 hapd->conf->qos_map_set_len = count; 714 715 return 0; 716 } 717 718 719 static int hostapd_ctrl_iface_send_qos_map_conf(struct hostapd_data *hapd, 720 const char *cmd) 721 { 722 u8 addr[ETH_ALEN]; 723 struct sta_info *sta; 724 struct wpabuf *buf; 725 u8 *qos_map_set = hapd->conf->qos_map_set; 726 u8 qos_map_set_len = hapd->conf->qos_map_set_len; 727 int ret; 728 729 if (!qos_map_set_len) { 730 wpa_printf(MSG_INFO, "QoS Map Set is not set"); 731 return -1; 732 } 733 734 if (hwaddr_aton(cmd, addr)) 735 return -1; 736 737 sta = ap_get_sta(hapd, addr); 738 if (sta == NULL) { 739 wpa_printf(MSG_DEBUG, "Station " MACSTR " not found " 740 "for QoS Map Configuration message", 741 MAC2STR(addr)); 742 return -1; 743 } 744 745 if (!sta->qos_map_enabled) { 746 wpa_printf(MSG_DEBUG, "Station " MACSTR " did not indicate " 747 "support for QoS Map", MAC2STR(addr)); 748 return -1; 749 } 750 751 buf = wpabuf_alloc(2 + 2 + qos_map_set_len); 752 if (buf == NULL) 753 return -1; 754 755 wpabuf_put_u8(buf, WLAN_ACTION_QOS); 756 wpabuf_put_u8(buf, QOS_QOS_MAP_CONFIG); 757 758 /* QoS Map Set Element */ 759 wpabuf_put_u8(buf, WLAN_EID_QOS_MAP_SET); 760 wpabuf_put_u8(buf, qos_map_set_len); 761 wpabuf_put_data(buf, qos_map_set, qos_map_set_len); 762 763 ret = hostapd_drv_send_action(hapd, hapd->iface->freq, 0, addr, 764 wpabuf_head(buf), wpabuf_len(buf)); 765 wpabuf_free(buf); 766 767 return ret; 768 } 769 770 #endif /* CONFIG_INTERWORKING */ 771 772 773 #ifdef CONFIG_WNM_AP 774 775 static int hostapd_ctrl_iface_disassoc_imminent(struct hostapd_data *hapd, 776 const char *cmd) 777 { 778 u8 addr[ETH_ALEN]; 779 int disassoc_timer; 780 struct sta_info *sta; 781 782 if (hwaddr_aton(cmd, addr)) 783 return -1; 784 if (cmd[17] != ' ') 785 return -1; 786 disassoc_timer = atoi(cmd + 17); 787 788 sta = ap_get_sta(hapd, addr); 789 if (sta == NULL) { 790 wpa_printf(MSG_DEBUG, "Station " MACSTR 791 " not found for disassociation imminent message", 792 MAC2STR(addr)); 793 return -1; 794 } 795 796 return wnm_send_disassoc_imminent(hapd, sta, disassoc_timer); 797 } 798 799 800 static int hostapd_ctrl_iface_ess_disassoc(struct hostapd_data *hapd, 801 const char *cmd) 802 { 803 u8 addr[ETH_ALEN]; 804 const char *url, *timerstr; 805 int disassoc_timer; 806 struct sta_info *sta; 807 808 if (hwaddr_aton(cmd, addr)) 809 return -1; 810 811 sta = ap_get_sta(hapd, addr); 812 if (sta == NULL) { 813 wpa_printf(MSG_DEBUG, "Station " MACSTR 814 " not found for ESS disassociation imminent message", 815 MAC2STR(addr)); 816 return -1; 817 } 818 819 timerstr = cmd + 17; 820 if (*timerstr != ' ') 821 return -1; 822 timerstr++; 823 disassoc_timer = atoi(timerstr); 824 if (disassoc_timer < 0 || disassoc_timer > 65535) 825 return -1; 826 827 url = os_strchr(timerstr, ' '); 828 if (url == NULL) 829 return -1; 830 url++; 831 832 return wnm_send_ess_disassoc_imminent(hapd, sta, url, disassoc_timer); 833 } 834 835 836 static int hostapd_ctrl_iface_bss_tm_req(struct hostapd_data *hapd, 837 const char *cmd) 838 { 839 u8 addr[ETH_ALEN]; 840 const char *pos, *end; 841 int disassoc_timer = 0; 842 struct sta_info *sta; 843 u8 req_mode = 0, valid_int = 0x01; 844 u8 bss_term_dur[12]; 845 char *url = NULL; 846 int ret; 847 u8 nei_rep[1000]; 848 int nei_len; 849 u8 mbo[10]; 850 size_t mbo_len = 0; 851 852 if (hwaddr_aton(cmd, addr)) { 853 wpa_printf(MSG_DEBUG, "Invalid STA MAC address"); 854 return -1; 855 } 856 857 sta = ap_get_sta(hapd, addr); 858 if (sta == NULL) { 859 wpa_printf(MSG_DEBUG, "Station " MACSTR 860 " not found for BSS TM Request message", 861 MAC2STR(addr)); 862 return -1; 863 } 864 865 pos = os_strstr(cmd, " disassoc_timer="); 866 if (pos) { 867 pos += 16; 868 disassoc_timer = atoi(pos); 869 if (disassoc_timer < 0 || disassoc_timer > 65535) { 870 wpa_printf(MSG_DEBUG, "Invalid disassoc_timer"); 871 return -1; 872 } 873 } 874 875 pos = os_strstr(cmd, " valid_int="); 876 if (pos) { 877 pos += 11; 878 valid_int = atoi(pos); 879 } 880 881 pos = os_strstr(cmd, " bss_term="); 882 if (pos) { 883 pos += 10; 884 req_mode |= WNM_BSS_TM_REQ_BSS_TERMINATION_INCLUDED; 885 /* TODO: TSF configurable/learnable */ 886 bss_term_dur[0] = 4; /* Subelement ID */ 887 bss_term_dur[1] = 10; /* Length */ 888 os_memset(&bss_term_dur[2], 0, 8); 889 end = os_strchr(pos, ','); 890 if (end == NULL) { 891 wpa_printf(MSG_DEBUG, "Invalid bss_term data"); 892 return -1; 893 } 894 end++; 895 WPA_PUT_LE16(&bss_term_dur[10], atoi(end)); 896 } 897 898 nei_len = ieee802_11_parse_candidate_list(cmd, nei_rep, 899 sizeof(nei_rep)); 900 if (nei_len < 0) 901 return -1; 902 903 pos = os_strstr(cmd, " url="); 904 if (pos) { 905 size_t len; 906 pos += 5; 907 end = os_strchr(pos, ' '); 908 if (end) 909 len = end - pos; 910 else 911 len = os_strlen(pos); 912 url = os_malloc(len + 1); 913 if (url == NULL) 914 return -1; 915 os_memcpy(url, pos, len); 916 url[len] = '\0'; 917 req_mode |= WNM_BSS_TM_REQ_ESS_DISASSOC_IMMINENT; 918 } 919 920 if (os_strstr(cmd, " pref=1")) 921 req_mode |= WNM_BSS_TM_REQ_PREF_CAND_LIST_INCLUDED; 922 if (os_strstr(cmd, " abridged=1")) 923 req_mode |= WNM_BSS_TM_REQ_ABRIDGED; 924 if (os_strstr(cmd, " disassoc_imminent=1")) 925 req_mode |= WNM_BSS_TM_REQ_DISASSOC_IMMINENT; 926 927 #ifdef CONFIG_MBO 928 pos = os_strstr(cmd, "mbo="); 929 if (pos) { 930 unsigned int mbo_reason, cell_pref, reassoc_delay; 931 u8 *mbo_pos = mbo; 932 933 ret = sscanf(pos, "mbo=%u:%u:%u", &mbo_reason, 934 &reassoc_delay, &cell_pref); 935 if (ret != 3) { 936 wpa_printf(MSG_DEBUG, 937 "MBO requires three arguments: mbo=<reason>:<reassoc_delay>:<cell_pref>"); 938 ret = -1; 939 goto fail; 940 } 941 942 if (mbo_reason > MBO_TRANSITION_REASON_PREMIUM_AP) { 943 wpa_printf(MSG_DEBUG, 944 "Invalid MBO transition reason code %u", 945 mbo_reason); 946 ret = -1; 947 goto fail; 948 } 949 950 /* Valid values for Cellular preference are: 0, 1, 255 */ 951 if (cell_pref != 0 && cell_pref != 1 && cell_pref != 255) { 952 wpa_printf(MSG_DEBUG, 953 "Invalid MBO cellular capability %u", 954 cell_pref); 955 ret = -1; 956 goto fail; 957 } 958 959 if (reassoc_delay > 65535 || 960 (reassoc_delay && 961 !(req_mode & WNM_BSS_TM_REQ_DISASSOC_IMMINENT))) { 962 wpa_printf(MSG_DEBUG, 963 "MBO: Assoc retry delay is only valid in disassoc imminent mode"); 964 ret = -1; 965 goto fail; 966 } 967 968 *mbo_pos++ = MBO_ATTR_ID_TRANSITION_REASON; 969 *mbo_pos++ = 1; 970 *mbo_pos++ = mbo_reason; 971 *mbo_pos++ = MBO_ATTR_ID_CELL_DATA_PREF; 972 *mbo_pos++ = 1; 973 *mbo_pos++ = cell_pref; 974 975 if (reassoc_delay) { 976 *mbo_pos++ = MBO_ATTR_ID_ASSOC_RETRY_DELAY; 977 *mbo_pos++ = 2; 978 WPA_PUT_LE16(mbo_pos, reassoc_delay); 979 mbo_pos += 2; 980 } 981 982 mbo_len = mbo_pos - mbo; 983 } 984 #endif /* CONFIG_MBO */ 985 986 ret = wnm_send_bss_tm_req(hapd, sta, req_mode, disassoc_timer, 987 valid_int, bss_term_dur, url, 988 nei_len ? nei_rep : NULL, nei_len, 989 mbo_len ? mbo : NULL, mbo_len); 990 #ifdef CONFIG_MBO 991 fail: 992 #endif /* CONFIG_MBO */ 993 os_free(url); 994 return ret; 995 } 996 997 998 static int hostapd_ctrl_iface_coloc_intf_req(struct hostapd_data *hapd, 999 const char *cmd) 1000 { 1001 u8 addr[ETH_ALEN]; 1002 struct sta_info *sta; 1003 const char *pos; 1004 unsigned int auto_report, timeout; 1005 1006 if (hwaddr_aton(cmd, addr)) { 1007 wpa_printf(MSG_DEBUG, "Invalid STA MAC address"); 1008 return -1; 1009 } 1010 1011 sta = ap_get_sta(hapd, addr); 1012 if (!sta) { 1013 wpa_printf(MSG_DEBUG, "Station " MACSTR 1014 " not found for Collocated Interference Request", 1015 MAC2STR(addr)); 1016 return -1; 1017 } 1018 1019 pos = cmd + 17; 1020 if (*pos != ' ') 1021 return -1; 1022 pos++; 1023 auto_report = atoi(pos); 1024 pos = os_strchr(pos, ' '); 1025 if (!pos) 1026 return -1; 1027 pos++; 1028 timeout = atoi(pos); 1029 1030 return wnm_send_coloc_intf_req(hapd, sta, auto_report, timeout); 1031 } 1032 1033 #endif /* CONFIG_WNM_AP */ 1034 1035 1036 static int hostapd_ctrl_iface_get_key_mgmt(struct hostapd_data *hapd, 1037 char *buf, size_t buflen) 1038 { 1039 int ret = 0; 1040 char *pos, *end; 1041 1042 pos = buf; 1043 end = buf + buflen; 1044 1045 WPA_ASSERT(hapd->conf->wpa_key_mgmt); 1046 1047 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK) { 1048 ret = os_snprintf(pos, end - pos, "WPA-PSK "); 1049 if (os_snprintf_error(end - pos, ret)) 1050 return pos - buf; 1051 pos += ret; 1052 } 1053 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X) { 1054 ret = os_snprintf(pos, end - pos, "WPA-EAP "); 1055 if (os_snprintf_error(end - pos, ret)) 1056 return pos - buf; 1057 pos += ret; 1058 } 1059 #ifdef CONFIG_IEEE80211R_AP 1060 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_PSK) { 1061 ret = os_snprintf(pos, end - pos, "FT-PSK "); 1062 if (os_snprintf_error(end - pos, ret)) 1063 return pos - buf; 1064 pos += ret; 1065 } 1066 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) { 1067 ret = os_snprintf(pos, end - pos, "FT-EAP "); 1068 if (os_snprintf_error(end - pos, ret)) 1069 return pos - buf; 1070 pos += ret; 1071 } 1072 #ifdef CONFIG_SHA384 1073 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X_SHA384) { 1074 ret = os_snprintf(pos, end - pos, "FT-EAP-SHA384 "); 1075 if (os_snprintf_error(end - pos, ret)) 1076 return pos - buf; 1077 pos += ret; 1078 } 1079 #endif /* CONFIG_SHA384 */ 1080 #ifdef CONFIG_SAE 1081 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_SAE) { 1082 ret = os_snprintf(pos, end - pos, "FT-SAE "); 1083 if (os_snprintf_error(end - pos, ret)) 1084 return pos - buf; 1085 pos += ret; 1086 } 1087 #endif /* CONFIG_SAE */ 1088 #ifdef CONFIG_FILS 1089 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_FILS_SHA256) { 1090 ret = os_snprintf(pos, end - pos, "FT-FILS-SHA256 "); 1091 if (os_snprintf_error(end - pos, ret)) 1092 return pos - buf; 1093 pos += ret; 1094 } 1095 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_FILS_SHA384) { 1096 ret = os_snprintf(pos, end - pos, "FT-FILS-SHA384 "); 1097 if (os_snprintf_error(end - pos, ret)) 1098 return pos - buf; 1099 pos += ret; 1100 } 1101 #endif /* CONFIG_FILS */ 1102 #endif /* CONFIG_IEEE80211R_AP */ 1103 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK_SHA256) { 1104 ret = os_snprintf(pos, end - pos, "WPA-PSK-SHA256 "); 1105 if (os_snprintf_error(end - pos, ret)) 1106 return pos - buf; 1107 pos += ret; 1108 } 1109 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) { 1110 ret = os_snprintf(pos, end - pos, "WPA-EAP-SHA256 "); 1111 if (os_snprintf_error(end - pos, ret)) 1112 return pos - buf; 1113 pos += ret; 1114 } 1115 #ifdef CONFIG_SAE 1116 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_SAE) { 1117 ret = os_snprintf(pos, end - pos, "SAE "); 1118 if (os_snprintf_error(end - pos, ret)) 1119 return pos - buf; 1120 pos += ret; 1121 } 1122 #endif /* CONFIG_SAE */ 1123 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) { 1124 ret = os_snprintf(pos, end - pos, "WPA-EAP-SUITE-B "); 1125 if (os_snprintf_error(end - pos, ret)) 1126 return pos - buf; 1127 pos += ret; 1128 } 1129 if (hapd->conf->wpa_key_mgmt & 1130 WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) { 1131 ret = os_snprintf(pos, end - pos, 1132 "WPA-EAP-SUITE-B-192 "); 1133 if (os_snprintf_error(end - pos, ret)) 1134 return pos - buf; 1135 pos += ret; 1136 } 1137 #ifdef CONFIG_FILS 1138 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FILS_SHA256) { 1139 ret = os_snprintf(pos, end - pos, "FILS-SHA256 "); 1140 if (os_snprintf_error(end - pos, ret)) 1141 return pos - buf; 1142 pos += ret; 1143 } 1144 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FILS_SHA384) { 1145 ret = os_snprintf(pos, end - pos, "FILS-SHA384 "); 1146 if (os_snprintf_error(end - pos, ret)) 1147 return pos - buf; 1148 pos += ret; 1149 } 1150 #endif /* CONFIG_FILS */ 1151 1152 #ifdef CONFIG_OWE 1153 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_OWE) { 1154 ret = os_snprintf(pos, end - pos, "OWE "); 1155 if (os_snprintf_error(end - pos, ret)) 1156 return pos - buf; 1157 pos += ret; 1158 } 1159 #endif /* CONFIG_OWE */ 1160 1161 #ifdef CONFIG_DPP 1162 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_DPP) { 1163 ret = os_snprintf(pos, end - pos, "DPP "); 1164 if (os_snprintf_error(end - pos, ret)) 1165 return pos - buf; 1166 pos += ret; 1167 } 1168 #endif /* CONFIG_DPP */ 1169 1170 if (pos > buf && *(pos - 1) == ' ') { 1171 *(pos - 1) = '\0'; 1172 pos--; 1173 } 1174 1175 return pos - buf; 1176 } 1177 1178 1179 static int hostapd_ctrl_iface_get_config(struct hostapd_data *hapd, 1180 char *buf, size_t buflen) 1181 { 1182 int ret; 1183 char *pos, *end; 1184 1185 pos = buf; 1186 end = buf + buflen; 1187 1188 ret = os_snprintf(pos, end - pos, "bssid=" MACSTR "\n" 1189 "ssid=%s\n", 1190 MAC2STR(hapd->own_addr), 1191 wpa_ssid_txt(hapd->conf->ssid.ssid, 1192 hapd->conf->ssid.ssid_len)); 1193 if (os_snprintf_error(end - pos, ret)) 1194 return pos - buf; 1195 pos += ret; 1196 1197 #ifdef CONFIG_WPS 1198 ret = os_snprintf(pos, end - pos, "wps_state=%s\n", 1199 hapd->conf->wps_state == 0 ? "disabled" : 1200 (hapd->conf->wps_state == 1 ? "not configured" : 1201 "configured")); 1202 if (os_snprintf_error(end - pos, ret)) 1203 return pos - buf; 1204 pos += ret; 1205 1206 if (hapd->conf->wps_state && hapd->conf->wpa && 1207 hapd->conf->ssid.wpa_passphrase) { 1208 ret = os_snprintf(pos, end - pos, "passphrase=%s\n", 1209 hapd->conf->ssid.wpa_passphrase); 1210 if (os_snprintf_error(end - pos, ret)) 1211 return pos - buf; 1212 pos += ret; 1213 } 1214 1215 if (hapd->conf->wps_state && hapd->conf->wpa && 1216 hapd->conf->ssid.wpa_psk && 1217 hapd->conf->ssid.wpa_psk->group) { 1218 char hex[PMK_LEN * 2 + 1]; 1219 wpa_snprintf_hex(hex, sizeof(hex), 1220 hapd->conf->ssid.wpa_psk->psk, PMK_LEN); 1221 ret = os_snprintf(pos, end - pos, "psk=%s\n", hex); 1222 if (os_snprintf_error(end - pos, ret)) 1223 return pos - buf; 1224 pos += ret; 1225 } 1226 1227 if (hapd->conf->multi_ap) { 1228 struct hostapd_ssid *ssid = &hapd->conf->multi_ap_backhaul_ssid; 1229 1230 ret = os_snprintf(pos, end - pos, "multi_ap=%d\n", 1231 hapd->conf->multi_ap); 1232 if (os_snprintf_error(end - pos, ret)) 1233 return pos - buf; 1234 pos += ret; 1235 1236 if (ssid->ssid_len) { 1237 ret = os_snprintf(pos, end - pos, 1238 "multi_ap_backhaul_ssid=%s\n", 1239 wpa_ssid_txt(ssid->ssid, 1240 ssid->ssid_len)); 1241 if (os_snprintf_error(end - pos, ret)) 1242 return pos - buf; 1243 pos += ret; 1244 } 1245 1246 if (hapd->conf->wps_state && hapd->conf->wpa && 1247 ssid->wpa_passphrase) { 1248 ret = os_snprintf(pos, end - pos, 1249 "multi_ap_backhaul_wpa_passphrase=%s\n", 1250 ssid->wpa_passphrase); 1251 if (os_snprintf_error(end - pos, ret)) 1252 return pos - buf; 1253 pos += ret; 1254 } 1255 1256 if (hapd->conf->wps_state && hapd->conf->wpa && 1257 ssid->wpa_psk && 1258 ssid->wpa_psk->group) { 1259 char hex[PMK_LEN * 2 + 1]; 1260 1261 wpa_snprintf_hex(hex, sizeof(hex), ssid->wpa_psk->psk, 1262 PMK_LEN); 1263 ret = os_snprintf(pos, end - pos, 1264 "multi_ap_backhaul_wpa_psk=%s\n", 1265 hex); 1266 forced_memzero(hex, sizeof(hex)); 1267 if (os_snprintf_error(end - pos, ret)) 1268 return pos - buf; 1269 pos += ret; 1270 } 1271 } 1272 #endif /* CONFIG_WPS */ 1273 1274 if (hapd->conf->wpa) { 1275 ret = os_snprintf(pos, end - pos, "wpa=%d\n", hapd->conf->wpa); 1276 if (os_snprintf_error(end - pos, ret)) 1277 return pos - buf; 1278 pos += ret; 1279 } 1280 1281 if (hapd->conf->wpa && hapd->conf->wpa_key_mgmt) { 1282 ret = os_snprintf(pos, end - pos, "key_mgmt="); 1283 if (os_snprintf_error(end - pos, ret)) 1284 return pos - buf; 1285 pos += ret; 1286 1287 pos += hostapd_ctrl_iface_get_key_mgmt(hapd, pos, end - pos); 1288 1289 ret = os_snprintf(pos, end - pos, "\n"); 1290 if (os_snprintf_error(end - pos, ret)) 1291 return pos - buf; 1292 pos += ret; 1293 } 1294 1295 if (hapd->conf->wpa) { 1296 ret = os_snprintf(pos, end - pos, "group_cipher=%s\n", 1297 wpa_cipher_txt(hapd->conf->wpa_group)); 1298 if (os_snprintf_error(end - pos, ret)) 1299 return pos - buf; 1300 pos += ret; 1301 } 1302 1303 if ((hapd->conf->wpa & WPA_PROTO_RSN) && hapd->conf->rsn_pairwise) { 1304 ret = os_snprintf(pos, end - pos, "rsn_pairwise_cipher="); 1305 if (os_snprintf_error(end - pos, ret)) 1306 return pos - buf; 1307 pos += ret; 1308 1309 ret = wpa_write_ciphers(pos, end, hapd->conf->rsn_pairwise, 1310 " "); 1311 if (ret < 0) 1312 return pos - buf; 1313 pos += ret; 1314 1315 ret = os_snprintf(pos, end - pos, "\n"); 1316 if (os_snprintf_error(end - pos, ret)) 1317 return pos - buf; 1318 pos += ret; 1319 } 1320 1321 if ((hapd->conf->wpa & WPA_PROTO_WPA) && hapd->conf->wpa_pairwise) { 1322 ret = os_snprintf(pos, end - pos, "wpa_pairwise_cipher="); 1323 if (os_snprintf_error(end - pos, ret)) 1324 return pos - buf; 1325 pos += ret; 1326 1327 ret = wpa_write_ciphers(pos, end, hapd->conf->wpa_pairwise, 1328 " "); 1329 if (ret < 0) 1330 return pos - buf; 1331 pos += ret; 1332 1333 ret = os_snprintf(pos, end - pos, "\n"); 1334 if (os_snprintf_error(end - pos, ret)) 1335 return pos - buf; 1336 pos += ret; 1337 } 1338 1339 if (hapd->conf->wpa && hapd->conf->wpa_deny_ptk0_rekey) { 1340 ret = os_snprintf(pos, end - pos, "wpa_deny_ptk0_rekey=%d\n", 1341 hapd->conf->wpa_deny_ptk0_rekey); 1342 if (os_snprintf_error(end - pos, ret)) 1343 return pos - buf; 1344 pos += ret; 1345 } 1346 1347 if ((hapd->conf->wpa & WPA_PROTO_RSN) && hapd->conf->extended_key_id) { 1348 ret = os_snprintf(pos, end - pos, "extended_key_id=%d\n", 1349 hapd->conf->extended_key_id); 1350 if (os_snprintf_error(end - pos, ret)) 1351 return pos - buf; 1352 pos += ret; 1353 } 1354 1355 return pos - buf; 1356 } 1357 1358 1359 static void hostapd_disassoc_accept_mac(struct hostapd_data *hapd) 1360 { 1361 struct sta_info *sta; 1362 struct vlan_description vlan_id; 1363 1364 if (hapd->conf->macaddr_acl != DENY_UNLESS_ACCEPTED) 1365 return; 1366 1367 for (sta = hapd->sta_list; sta; sta = sta->next) { 1368 if (!hostapd_maclist_found(hapd->conf->accept_mac, 1369 hapd->conf->num_accept_mac, 1370 sta->addr, &vlan_id) || 1371 (vlan_id.notempty && 1372 vlan_compare(&vlan_id, sta->vlan_desc))) 1373 ap_sta_disconnect(hapd, sta, sta->addr, 1374 WLAN_REASON_UNSPECIFIED); 1375 } 1376 } 1377 1378 1379 static void hostapd_disassoc_deny_mac(struct hostapd_data *hapd) 1380 { 1381 struct sta_info *sta; 1382 struct vlan_description vlan_id; 1383 1384 for (sta = hapd->sta_list; sta; sta = sta->next) { 1385 if (hostapd_maclist_found(hapd->conf->deny_mac, 1386 hapd->conf->num_deny_mac, sta->addr, 1387 &vlan_id) && 1388 (!vlan_id.notempty || 1389 !vlan_compare(&vlan_id, sta->vlan_desc))) 1390 ap_sta_disconnect(hapd, sta, sta->addr, 1391 WLAN_REASON_UNSPECIFIED); 1392 } 1393 } 1394 1395 1396 static int hostapd_ctrl_iface_set_band(struct hostapd_data *hapd, 1397 const char *bands) 1398 { 1399 union wpa_event_data event; 1400 u32 setband_mask = WPA_SETBAND_AUTO; 1401 1402 /* 1403 * For example: 1404 * SET setband 2G,6G 1405 * SET setband 5G 1406 * SET setband AUTO 1407 */ 1408 if (!os_strstr(bands, "AUTO")) { 1409 if (os_strstr(bands, "5G")) 1410 setband_mask |= WPA_SETBAND_5G; 1411 if (os_strstr(bands, "6G")) 1412 setband_mask |= WPA_SETBAND_6G; 1413 if (os_strstr(bands, "2G")) 1414 setband_mask |= WPA_SETBAND_2G; 1415 if (setband_mask == WPA_SETBAND_AUTO) 1416 return -1; 1417 } 1418 1419 if (hostapd_drv_set_band(hapd, setband_mask) == 0) { 1420 os_memset(&event, 0, sizeof(event)); 1421 event.channel_list_changed.initiator = REGDOM_SET_BY_USER; 1422 event.channel_list_changed.type = REGDOM_TYPE_UNKNOWN; 1423 wpa_supplicant_event(hapd, EVENT_CHANNEL_LIST_CHANGED, &event); 1424 } 1425 1426 return 0; 1427 } 1428 1429 1430 static int hostapd_ctrl_iface_set(struct hostapd_data *hapd, char *cmd) 1431 { 1432 char *value; 1433 int ret = 0; 1434 1435 value = os_strchr(cmd, ' '); 1436 if (value == NULL) 1437 return -1; 1438 *value++ = '\0'; 1439 1440 wpa_printf(MSG_DEBUG, "CTRL_IFACE SET '%s'='%s'", cmd, value); 1441 if (0) { 1442 #ifdef CONFIG_WPS_TESTING 1443 } else if (os_strcasecmp(cmd, "wps_version_number") == 0) { 1444 long int val; 1445 val = strtol(value, NULL, 0); 1446 if (val < 0 || val > 0xff) { 1447 ret = -1; 1448 wpa_printf(MSG_DEBUG, "WPS: Invalid " 1449 "wps_version_number %ld", val); 1450 } else { 1451 wps_version_number = val; 1452 wpa_printf(MSG_DEBUG, "WPS: Testing - force WPS " 1453 "version %u.%u", 1454 (wps_version_number & 0xf0) >> 4, 1455 wps_version_number & 0x0f); 1456 hostapd_wps_update_ie(hapd); 1457 } 1458 } else if (os_strcasecmp(cmd, "wps_testing_dummy_cred") == 0) { 1459 wps_testing_dummy_cred = atoi(value); 1460 wpa_printf(MSG_DEBUG, "WPS: Testing - dummy_cred=%d", 1461 wps_testing_dummy_cred); 1462 } else if (os_strcasecmp(cmd, "wps_corrupt_pkhash") == 0) { 1463 wps_corrupt_pkhash = atoi(value); 1464 wpa_printf(MSG_DEBUG, "WPS: Testing - wps_corrupt_pkhash=%d", 1465 wps_corrupt_pkhash); 1466 #endif /* CONFIG_WPS_TESTING */ 1467 #ifdef CONFIG_TESTING_OPTIONS 1468 } else if (os_strcasecmp(cmd, "ext_mgmt_frame_handling") == 0) { 1469 hapd->ext_mgmt_frame_handling = atoi(value); 1470 } else if (os_strcasecmp(cmd, "ext_eapol_frame_io") == 0) { 1471 hapd->ext_eapol_frame_io = atoi(value); 1472 } else if (os_strcasecmp(cmd, "force_backlog_bytes") == 0) { 1473 hapd->force_backlog_bytes = atoi(value); 1474 #ifdef CONFIG_DPP 1475 } else if (os_strcasecmp(cmd, "dpp_config_obj_override") == 0) { 1476 os_free(hapd->dpp_config_obj_override); 1477 hapd->dpp_config_obj_override = os_strdup(value); 1478 } else if (os_strcasecmp(cmd, "dpp_discovery_override") == 0) { 1479 os_free(hapd->dpp_discovery_override); 1480 hapd->dpp_discovery_override = os_strdup(value); 1481 } else if (os_strcasecmp(cmd, "dpp_groups_override") == 0) { 1482 os_free(hapd->dpp_groups_override); 1483 hapd->dpp_groups_override = os_strdup(value); 1484 } else if (os_strcasecmp(cmd, 1485 "dpp_ignore_netaccesskey_mismatch") == 0) { 1486 hapd->dpp_ignore_netaccesskey_mismatch = atoi(value); 1487 } else if (os_strcasecmp(cmd, "dpp_test") == 0) { 1488 dpp_test = atoi(value); 1489 } else if (os_strcasecmp(cmd, "dpp_version_override") == 0) { 1490 dpp_version_override = atoi(value); 1491 #endif /* CONFIG_DPP */ 1492 #endif /* CONFIG_TESTING_OPTIONS */ 1493 #ifdef CONFIG_MBO 1494 } else if (os_strcasecmp(cmd, "mbo_assoc_disallow") == 0) { 1495 int val; 1496 1497 if (!hapd->conf->mbo_enabled) 1498 return -1; 1499 1500 val = atoi(value); 1501 if (val < 0 || val > 1) 1502 return -1; 1503 1504 hapd->mbo_assoc_disallow = val; 1505 ieee802_11_update_beacons(hapd->iface); 1506 1507 /* 1508 * TODO: Need to configure drivers that do AP MLME offload with 1509 * disallowing station logic. 1510 */ 1511 #endif /* CONFIG_MBO */ 1512 #ifdef CONFIG_DPP 1513 } else if (os_strcasecmp(cmd, "dpp_configurator_params") == 0) { 1514 os_free(hapd->dpp_configurator_params); 1515 hapd->dpp_configurator_params = os_strdup(value); 1516 } else if (os_strcasecmp(cmd, "dpp_init_max_tries") == 0) { 1517 hapd->dpp_init_max_tries = atoi(value); 1518 } else if (os_strcasecmp(cmd, "dpp_init_retry_time") == 0) { 1519 hapd->dpp_init_retry_time = atoi(value); 1520 } else if (os_strcasecmp(cmd, "dpp_resp_wait_time") == 0) { 1521 hapd->dpp_resp_wait_time = atoi(value); 1522 } else if (os_strcasecmp(cmd, "dpp_resp_max_tries") == 0) { 1523 hapd->dpp_resp_max_tries = atoi(value); 1524 } else if (os_strcasecmp(cmd, "dpp_resp_retry_time") == 0) { 1525 hapd->dpp_resp_retry_time = atoi(value); 1526 #endif /* CONFIG_DPP */ 1527 } else if (os_strcasecmp(cmd, "setband") == 0) { 1528 ret = hostapd_ctrl_iface_set_band(hapd, value); 1529 } else { 1530 ret = hostapd_set_iface(hapd->iconf, hapd->conf, cmd, value); 1531 if (ret) 1532 return ret; 1533 1534 if (os_strcasecmp(cmd, "deny_mac_file") == 0) { 1535 hostapd_disassoc_deny_mac(hapd); 1536 } else if (os_strcasecmp(cmd, "accept_mac_file") == 0) { 1537 hostapd_disassoc_accept_mac(hapd); 1538 } else if (os_strncmp(cmd, "wme_ac_", 7) == 0 || 1539 os_strncmp(cmd, "wmm_ac_", 7) == 0) { 1540 hapd->parameter_set_count++; 1541 if (ieee802_11_update_beacons(hapd->iface)) 1542 wpa_printf(MSG_DEBUG, 1543 "Failed to update beacons with WMM parameters"); 1544 } else if (os_strcmp(cmd, "wpa_passphrase") == 0 || 1545 os_strcmp(cmd, "sae_password") == 0 || 1546 os_strcmp(cmd, "sae_pwe") == 0) { 1547 if (hapd->started) 1548 hostapd_setup_sae_pt(hapd->conf); 1549 } else if (os_strcasecmp(cmd, "transition_disable") == 0) { 1550 wpa_auth_set_transition_disable(hapd->wpa_auth, 1551 hapd->conf->transition_disable); 1552 } 1553 1554 #ifdef CONFIG_TESTING_OPTIONS 1555 if (os_strcmp(cmd, "ft_rsnxe_used") == 0) 1556 wpa_auth_set_ft_rsnxe_used(hapd->wpa_auth, 1557 hapd->conf->ft_rsnxe_used); 1558 else if (os_strcmp(cmd, "oci_freq_override_eapol_m3") == 0) 1559 wpa_auth_set_ocv_override_freq( 1560 hapd->wpa_auth, WPA_AUTH_OCV_OVERRIDE_EAPOL_M3, 1561 atoi(value)); 1562 else if (os_strcmp(cmd, "oci_freq_override_eapol_g1") == 0) 1563 wpa_auth_set_ocv_override_freq( 1564 hapd->wpa_auth, WPA_AUTH_OCV_OVERRIDE_EAPOL_G1, 1565 atoi(value)); 1566 else if (os_strcmp(cmd, "oci_freq_override_ft_assoc") == 0) 1567 wpa_auth_set_ocv_override_freq( 1568 hapd->wpa_auth, WPA_AUTH_OCV_OVERRIDE_FT_ASSOC, 1569 atoi(value)); 1570 else if (os_strcmp(cmd, "oci_freq_override_fils_assoc") == 0) 1571 wpa_auth_set_ocv_override_freq( 1572 hapd->wpa_auth, 1573 WPA_AUTH_OCV_OVERRIDE_FILS_ASSOC, atoi(value)); 1574 #endif /* CONFIG_TESTING_OPTIONS */ 1575 } 1576 1577 return ret; 1578 } 1579 1580 1581 static int hostapd_ctrl_iface_get(struct hostapd_data *hapd, char *cmd, 1582 char *buf, size_t buflen) 1583 { 1584 int res; 1585 1586 wpa_printf(MSG_DEBUG, "CTRL_IFACE GET '%s'", cmd); 1587 1588 if (os_strcmp(cmd, "version") == 0) { 1589 res = os_snprintf(buf, buflen, "%s", VERSION_STR); 1590 if (os_snprintf_error(buflen, res)) 1591 return -1; 1592 return res; 1593 } else if (os_strcmp(cmd, "tls_library") == 0) { 1594 res = tls_get_library_version(buf, buflen); 1595 if (os_snprintf_error(buflen, res)) 1596 return -1; 1597 return res; 1598 } 1599 1600 return -1; 1601 } 1602 1603 1604 static int hostapd_ctrl_iface_enable(struct hostapd_iface *iface) 1605 { 1606 if (hostapd_enable_iface(iface) < 0) { 1607 wpa_printf(MSG_ERROR, "Enabling of interface failed"); 1608 return -1; 1609 } 1610 return 0; 1611 } 1612 1613 1614 static int hostapd_ctrl_iface_reload(struct hostapd_iface *iface) 1615 { 1616 if (hostapd_reload_iface(iface) < 0) { 1617 wpa_printf(MSG_ERROR, "Reloading of interface failed"); 1618 return -1; 1619 } 1620 return 0; 1621 } 1622 1623 1624 static int hostapd_ctrl_iface_disable(struct hostapd_iface *iface) 1625 { 1626 if (hostapd_disable_iface(iface) < 0) { 1627 wpa_printf(MSG_ERROR, "Disabling of interface failed"); 1628 return -1; 1629 } 1630 return 0; 1631 } 1632 1633 1634 static int 1635 hostapd_ctrl_iface_kick_mismatch_psk_sta_iter(struct hostapd_data *hapd, 1636 struct sta_info *sta, void *ctx) 1637 { 1638 struct hostapd_wpa_psk *psk; 1639 const u8 *pmk; 1640 int pmk_len; 1641 int pmk_match; 1642 int sta_match; 1643 int bss_match; 1644 int reason; 1645 1646 pmk = wpa_auth_get_pmk(sta->wpa_sm, &pmk_len); 1647 1648 for (psk = hapd->conf->ssid.wpa_psk; pmk && psk; psk = psk->next) { 1649 pmk_match = PMK_LEN == pmk_len && 1650 os_memcmp(psk->psk, pmk, pmk_len) == 0; 1651 sta_match = psk->group == 0 && 1652 os_memcmp(sta->addr, psk->addr, ETH_ALEN) == 0; 1653 bss_match = psk->group == 1; 1654 1655 if (pmk_match && (sta_match || bss_match)) 1656 return 0; 1657 } 1658 1659 wpa_printf(MSG_INFO, "STA " MACSTR 1660 " PSK/passphrase no longer valid - disconnect", 1661 MAC2STR(sta->addr)); 1662 reason = WLAN_REASON_PREV_AUTH_NOT_VALID; 1663 hostapd_drv_sta_deauth(hapd, sta->addr, reason); 1664 ap_sta_deauthenticate(hapd, sta, reason); 1665 1666 return 0; 1667 } 1668 1669 1670 static int hostapd_ctrl_iface_reload_wpa_psk(struct hostapd_data *hapd) 1671 { 1672 struct hostapd_bss_config *conf = hapd->conf; 1673 int err; 1674 1675 hostapd_config_clear_wpa_psk(&conf->ssid.wpa_psk); 1676 1677 err = hostapd_setup_wpa_psk(conf); 1678 if (err < 0) { 1679 wpa_printf(MSG_ERROR, "Reloading WPA-PSK passwords failed: %d", 1680 err); 1681 return -1; 1682 } 1683 1684 ap_for_each_sta(hapd, hostapd_ctrl_iface_kick_mismatch_psk_sta_iter, 1685 NULL); 1686 1687 return 0; 1688 } 1689 1690 1691 #ifdef CONFIG_TESTING_OPTIONS 1692 1693 static int hostapd_ctrl_iface_radar(struct hostapd_data *hapd, char *cmd) 1694 { 1695 union wpa_event_data data; 1696 char *pos, *param; 1697 enum wpa_event_type event; 1698 1699 wpa_printf(MSG_DEBUG, "RADAR TEST: %s", cmd); 1700 1701 os_memset(&data, 0, sizeof(data)); 1702 1703 param = os_strchr(cmd, ' '); 1704 if (param == NULL) 1705 return -1; 1706 *param++ = '\0'; 1707 1708 if (os_strcmp(cmd, "DETECTED") == 0) 1709 event = EVENT_DFS_RADAR_DETECTED; 1710 else if (os_strcmp(cmd, "CAC-FINISHED") == 0) 1711 event = EVENT_DFS_CAC_FINISHED; 1712 else if (os_strcmp(cmd, "CAC-ABORTED") == 0) 1713 event = EVENT_DFS_CAC_ABORTED; 1714 else if (os_strcmp(cmd, "NOP-FINISHED") == 0) 1715 event = EVENT_DFS_NOP_FINISHED; 1716 else { 1717 wpa_printf(MSG_DEBUG, "Unsupported RADAR test command: %s", 1718 cmd); 1719 return -1; 1720 } 1721 1722 pos = os_strstr(param, "freq="); 1723 if (pos) 1724 data.dfs_event.freq = atoi(pos + 5); 1725 1726 pos = os_strstr(param, "ht_enabled=1"); 1727 if (pos) 1728 data.dfs_event.ht_enabled = 1; 1729 1730 pos = os_strstr(param, "chan_offset="); 1731 if (pos) 1732 data.dfs_event.chan_offset = atoi(pos + 12); 1733 1734 pos = os_strstr(param, "chan_width="); 1735 if (pos) 1736 data.dfs_event.chan_width = atoi(pos + 11); 1737 1738 pos = os_strstr(param, "cf1="); 1739 if (pos) 1740 data.dfs_event.cf1 = atoi(pos + 4); 1741 1742 pos = os_strstr(param, "cf2="); 1743 if (pos) 1744 data.dfs_event.cf2 = atoi(pos + 4); 1745 1746 wpa_supplicant_event(hapd, event, &data); 1747 1748 return 0; 1749 } 1750 1751 1752 static int hostapd_ctrl_iface_mgmt_tx(struct hostapd_data *hapd, char *cmd) 1753 { 1754 size_t len; 1755 u8 *buf; 1756 int res; 1757 1758 wpa_printf(MSG_DEBUG, "External MGMT TX: %s", cmd); 1759 1760 len = os_strlen(cmd); 1761 if (len & 1) 1762 return -1; 1763 len /= 2; 1764 1765 buf = os_malloc(len); 1766 if (buf == NULL) 1767 return -1; 1768 1769 if (hexstr2bin(cmd, buf, len) < 0) { 1770 os_free(buf); 1771 return -1; 1772 } 1773 1774 res = hostapd_drv_send_mlme(hapd, buf, len, 0, NULL, 0, 0); 1775 os_free(buf); 1776 return res; 1777 } 1778 1779 1780 static int hostapd_ctrl_iface_mgmt_tx_status_process(struct hostapd_data *hapd, 1781 char *cmd) 1782 { 1783 char *pos, *param; 1784 size_t len; 1785 u8 *buf; 1786 int stype = 0, ok = 0; 1787 union wpa_event_data event; 1788 1789 if (!hapd->ext_mgmt_frame_handling) 1790 return -1; 1791 1792 /* stype=<val> ok=<0/1> buf=<frame hexdump> */ 1793 1794 wpa_printf(MSG_DEBUG, "External MGMT TX status process: %s", cmd); 1795 1796 pos = cmd; 1797 param = os_strstr(pos, "stype="); 1798 if (param) { 1799 param += 6; 1800 stype = atoi(param); 1801 } 1802 1803 param = os_strstr(pos, " ok="); 1804 if (param) { 1805 param += 4; 1806 ok = atoi(param); 1807 } 1808 1809 param = os_strstr(pos, " buf="); 1810 if (!param) 1811 return -1; 1812 param += 5; 1813 1814 len = os_strlen(param); 1815 if (len & 1) 1816 return -1; 1817 len /= 2; 1818 1819 buf = os_malloc(len); 1820 if (!buf || hexstr2bin(param, buf, len) < 0) { 1821 os_free(buf); 1822 return -1; 1823 } 1824 1825 os_memset(&event, 0, sizeof(event)); 1826 event.tx_status.type = WLAN_FC_TYPE_MGMT; 1827 event.tx_status.data = buf; 1828 event.tx_status.data_len = len; 1829 event.tx_status.stype = stype; 1830 event.tx_status.ack = ok; 1831 hapd->ext_mgmt_frame_handling = 0; 1832 wpa_supplicant_event(hapd, EVENT_TX_STATUS, &event); 1833 hapd->ext_mgmt_frame_handling = 1; 1834 1835 os_free(buf); 1836 1837 return 0; 1838 } 1839 1840 1841 static int hostapd_ctrl_iface_mgmt_rx_process(struct hostapd_data *hapd, 1842 char *cmd) 1843 { 1844 char *pos, *param; 1845 size_t len; 1846 u8 *buf; 1847 int freq = 0, datarate = 0, ssi_signal = 0; 1848 union wpa_event_data event; 1849 1850 if (!hapd->ext_mgmt_frame_handling) 1851 return -1; 1852 1853 /* freq=<MHz> datarate=<val> ssi_signal=<val> frame=<frame hexdump> */ 1854 1855 wpa_printf(MSG_DEBUG, "External MGMT RX process: %s", cmd); 1856 1857 pos = cmd; 1858 param = os_strstr(pos, "freq="); 1859 if (param) { 1860 param += 5; 1861 freq = atoi(param); 1862 } 1863 1864 param = os_strstr(pos, " datarate="); 1865 if (param) { 1866 param += 10; 1867 datarate = atoi(param); 1868 } 1869 1870 param = os_strstr(pos, " ssi_signal="); 1871 if (param) { 1872 param += 12; 1873 ssi_signal = atoi(param); 1874 } 1875 1876 param = os_strstr(pos, " frame="); 1877 if (param == NULL) 1878 return -1; 1879 param += 7; 1880 1881 len = os_strlen(param); 1882 if (len & 1) 1883 return -1; 1884 len /= 2; 1885 1886 buf = os_malloc(len); 1887 if (buf == NULL) 1888 return -1; 1889 1890 if (hexstr2bin(param, buf, len) < 0) { 1891 os_free(buf); 1892 return -1; 1893 } 1894 1895 os_memset(&event, 0, sizeof(event)); 1896 event.rx_mgmt.freq = freq; 1897 event.rx_mgmt.frame = buf; 1898 event.rx_mgmt.frame_len = len; 1899 event.rx_mgmt.ssi_signal = ssi_signal; 1900 event.rx_mgmt.datarate = datarate; 1901 hapd->ext_mgmt_frame_handling = 0; 1902 wpa_supplicant_event(hapd, EVENT_RX_MGMT, &event); 1903 hapd->ext_mgmt_frame_handling = 1; 1904 1905 os_free(buf); 1906 1907 return 0; 1908 } 1909 1910 1911 static int hostapd_ctrl_iface_eapol_rx(struct hostapd_data *hapd, char *cmd) 1912 { 1913 char *pos; 1914 u8 src[ETH_ALEN], *buf; 1915 int used; 1916 size_t len; 1917 1918 wpa_printf(MSG_DEBUG, "External EAPOL RX: %s", cmd); 1919 1920 pos = cmd; 1921 used = hwaddr_aton2(pos, src); 1922 if (used < 0) 1923 return -1; 1924 pos += used; 1925 while (*pos == ' ') 1926 pos++; 1927 1928 len = os_strlen(pos); 1929 if (len & 1) 1930 return -1; 1931 len /= 2; 1932 1933 buf = os_malloc(len); 1934 if (buf == NULL) 1935 return -1; 1936 1937 if (hexstr2bin(pos, buf, len) < 0) { 1938 os_free(buf); 1939 return -1; 1940 } 1941 1942 ieee802_1x_receive(hapd, src, buf, len); 1943 os_free(buf); 1944 1945 return 0; 1946 } 1947 1948 1949 static int hostapd_ctrl_iface_eapol_tx(struct hostapd_data *hapd, char *cmd) 1950 { 1951 char *pos, *pos2; 1952 u8 dst[ETH_ALEN], *buf; 1953 int used, ret; 1954 size_t len; 1955 unsigned int prev; 1956 int encrypt = 0; 1957 1958 wpa_printf(MSG_DEBUG, "External EAPOL TX: %s", cmd); 1959 1960 pos = cmd; 1961 used = hwaddr_aton2(pos, dst); 1962 if (used < 0) 1963 return -1; 1964 pos += used; 1965 while (*pos == ' ') 1966 pos++; 1967 1968 pos2 = os_strchr(pos, ' '); 1969 if (pos2) { 1970 len = pos2 - pos; 1971 encrypt = os_strstr(pos2, "encrypt=1") != NULL; 1972 } else { 1973 len = os_strlen(pos); 1974 } 1975 if (len & 1) 1976 return -1; 1977 len /= 2; 1978 1979 buf = os_malloc(len); 1980 if (!buf || hexstr2bin(pos, buf, len) < 0) { 1981 os_free(buf); 1982 return -1; 1983 } 1984 1985 prev = hapd->ext_eapol_frame_io; 1986 hapd->ext_eapol_frame_io = 0; 1987 ret = hostapd_wpa_auth_send_eapol(hapd, dst, buf, len, encrypt); 1988 hapd->ext_eapol_frame_io = prev; 1989 os_free(buf); 1990 1991 return ret; 1992 } 1993 1994 1995 static u16 ipv4_hdr_checksum(const void *buf, size_t len) 1996 { 1997 size_t i; 1998 u32 sum = 0; 1999 const u16 *pos = buf; 2000 2001 for (i = 0; i < len / 2; i++) 2002 sum += *pos++; 2003 2004 while (sum >> 16) 2005 sum = (sum & 0xffff) + (sum >> 16); 2006 2007 return sum ^ 0xffff; 2008 } 2009 2010 2011 #define HWSIM_PACKETLEN 1500 2012 #define HWSIM_IP_LEN (HWSIM_PACKETLEN - sizeof(struct ether_header)) 2013 2014 static void hostapd_data_test_rx(void *ctx, const u8 *src_addr, const u8 *buf, 2015 size_t len) 2016 { 2017 struct hostapd_data *hapd = ctx; 2018 const struct ether_header *eth; 2019 struct ip ip; 2020 const u8 *pos; 2021 unsigned int i; 2022 char extra[30]; 2023 2024 if (len < sizeof(*eth) + sizeof(ip) || len > HWSIM_PACKETLEN) { 2025 wpa_printf(MSG_DEBUG, 2026 "test data: RX - ignore unexpected length %d", 2027 (int) len); 2028 return; 2029 } 2030 2031 eth = (const struct ether_header *) buf; 2032 os_memcpy(&ip, eth + 1, sizeof(ip)); 2033 pos = &buf[sizeof(*eth) + sizeof(ip)]; 2034 2035 if (ip.ip_hl != 5 || ip.ip_v != 4 || 2036 ntohs(ip.ip_len) > HWSIM_IP_LEN) { 2037 wpa_printf(MSG_DEBUG, 2038 "test data: RX - ignore unexpected IP header"); 2039 return; 2040 } 2041 2042 for (i = 0; i < ntohs(ip.ip_len) - sizeof(ip); i++) { 2043 if (*pos != (u8) i) { 2044 wpa_printf(MSG_DEBUG, 2045 "test data: RX - ignore mismatching payload"); 2046 return; 2047 } 2048 pos++; 2049 } 2050 2051 extra[0] = '\0'; 2052 if (ntohs(ip.ip_len) != HWSIM_IP_LEN) 2053 os_snprintf(extra, sizeof(extra), " len=%d", ntohs(ip.ip_len)); 2054 wpa_msg(hapd->msg_ctx, MSG_INFO, "DATA-TEST-RX " MACSTR " " MACSTR "%s", 2055 MAC2STR(eth->ether_dhost), MAC2STR(eth->ether_shost), extra); 2056 } 2057 2058 2059 static int hostapd_ctrl_iface_data_test_config(struct hostapd_data *hapd, 2060 char *cmd) 2061 { 2062 int enabled = atoi(cmd); 2063 char *pos; 2064 const char *ifname; 2065 2066 if (!enabled) { 2067 if (hapd->l2_test) { 2068 l2_packet_deinit(hapd->l2_test); 2069 hapd->l2_test = NULL; 2070 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, 2071 "test data: Disabled"); 2072 } 2073 return 0; 2074 } 2075 2076 if (hapd->l2_test) 2077 return 0; 2078 2079 pos = os_strstr(cmd, " ifname="); 2080 if (pos) 2081 ifname = pos + 8; 2082 else 2083 ifname = hapd->conf->iface; 2084 2085 hapd->l2_test = l2_packet_init(ifname, hapd->own_addr, 2086 ETHERTYPE_IP, hostapd_data_test_rx, 2087 hapd, 1); 2088 if (hapd->l2_test == NULL) 2089 return -1; 2090 2091 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: Enabled"); 2092 2093 return 0; 2094 } 2095 2096 2097 static int hostapd_ctrl_iface_data_test_tx(struct hostapd_data *hapd, char *cmd) 2098 { 2099 u8 dst[ETH_ALEN], src[ETH_ALEN]; 2100 char *pos, *pos2; 2101 int used; 2102 long int val; 2103 u8 tos; 2104 u8 buf[2 + HWSIM_PACKETLEN]; 2105 struct ether_header *eth; 2106 struct ip *ip; 2107 u8 *dpos; 2108 unsigned int i; 2109 size_t send_len = HWSIM_IP_LEN; 2110 2111 if (hapd->l2_test == NULL) 2112 return -1; 2113 2114 /* format: <dst> <src> <tos> [len=<length>] */ 2115 2116 pos = cmd; 2117 used = hwaddr_aton2(pos, dst); 2118 if (used < 0) 2119 return -1; 2120 pos += used; 2121 while (*pos == ' ') 2122 pos++; 2123 used = hwaddr_aton2(pos, src); 2124 if (used < 0) 2125 return -1; 2126 pos += used; 2127 2128 val = strtol(pos, &pos2, 0); 2129 if (val < 0 || val > 0xff) 2130 return -1; 2131 tos = val; 2132 2133 pos = os_strstr(pos2, " len="); 2134 if (pos) { 2135 i = atoi(pos + 5); 2136 if (i < sizeof(*ip) || i > HWSIM_IP_LEN) 2137 return -1; 2138 send_len = i; 2139 } 2140 2141 eth = (struct ether_header *) &buf[2]; 2142 os_memcpy(eth->ether_dhost, dst, ETH_ALEN); 2143 os_memcpy(eth->ether_shost, src, ETH_ALEN); 2144 eth->ether_type = htons(ETHERTYPE_IP); 2145 ip = (struct ip *) (eth + 1); 2146 os_memset(ip, 0, sizeof(*ip)); 2147 ip->ip_hl = 5; 2148 ip->ip_v = 4; 2149 ip->ip_ttl = 64; 2150 ip->ip_tos = tos; 2151 ip->ip_len = htons(send_len); 2152 ip->ip_p = 1; 2153 ip->ip_src.s_addr = htonl(192U << 24 | 168 << 16 | 1 << 8 | 1); 2154 ip->ip_dst.s_addr = htonl(192U << 24 | 168 << 16 | 1 << 8 | 2); 2155 ip->ip_sum = ipv4_hdr_checksum(ip, sizeof(*ip)); 2156 dpos = (u8 *) (ip + 1); 2157 for (i = 0; i < send_len - sizeof(*ip); i++) 2158 *dpos++ = i; 2159 2160 if (l2_packet_send(hapd->l2_test, dst, ETHERTYPE_IP, &buf[2], 2161 sizeof(struct ether_header) + send_len) < 0) 2162 return -1; 2163 2164 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: TX dst=" MACSTR 2165 " src=" MACSTR " tos=0x%x", MAC2STR(dst), MAC2STR(src), tos); 2166 2167 return 0; 2168 } 2169 2170 2171 static int hostapd_ctrl_iface_data_test_frame(struct hostapd_data *hapd, 2172 char *cmd) 2173 { 2174 u8 *buf; 2175 struct ether_header *eth; 2176 struct l2_packet_data *l2 = NULL; 2177 size_t len; 2178 u16 ethertype; 2179 int res = -1; 2180 const char *ifname = hapd->conf->iface; 2181 2182 if (os_strncmp(cmd, "ifname=", 7) == 0) { 2183 cmd += 7; 2184 ifname = cmd; 2185 cmd = os_strchr(cmd, ' '); 2186 if (cmd == NULL) 2187 return -1; 2188 *cmd++ = '\0'; 2189 } 2190 2191 len = os_strlen(cmd); 2192 if (len & 1 || len < ETH_HLEN * 2) 2193 return -1; 2194 len /= 2; 2195 2196 buf = os_malloc(len); 2197 if (buf == NULL) 2198 return -1; 2199 2200 if (hexstr2bin(cmd, buf, len) < 0) 2201 goto done; 2202 2203 eth = (struct ether_header *) buf; 2204 ethertype = ntohs(eth->ether_type); 2205 2206 l2 = l2_packet_init(ifname, hapd->own_addr, ethertype, 2207 hostapd_data_test_rx, hapd, 1); 2208 if (l2 == NULL) 2209 goto done; 2210 2211 res = l2_packet_send(l2, eth->ether_dhost, ethertype, buf, len); 2212 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: TX frame res=%d", res); 2213 done: 2214 if (l2) 2215 l2_packet_deinit(l2); 2216 os_free(buf); 2217 2218 return res < 0 ? -1 : 0; 2219 } 2220 2221 2222 static int hostapd_ctrl_test_alloc_fail(struct hostapd_data *hapd, char *cmd) 2223 { 2224 #ifdef WPA_TRACE_BFD 2225 char *pos; 2226 2227 wpa_trace_fail_after = atoi(cmd); 2228 pos = os_strchr(cmd, ':'); 2229 if (pos) { 2230 pos++; 2231 os_strlcpy(wpa_trace_fail_func, pos, 2232 sizeof(wpa_trace_fail_func)); 2233 } else { 2234 wpa_trace_fail_after = 0; 2235 } 2236 2237 return 0; 2238 #else /* WPA_TRACE_BFD */ 2239 return -1; 2240 #endif /* WPA_TRACE_BFD */ 2241 } 2242 2243 2244 static int hostapd_ctrl_get_alloc_fail(struct hostapd_data *hapd, 2245 char *buf, size_t buflen) 2246 { 2247 #ifdef WPA_TRACE_BFD 2248 return os_snprintf(buf, buflen, "%u:%s", wpa_trace_fail_after, 2249 wpa_trace_fail_func); 2250 #else /* WPA_TRACE_BFD */ 2251 return -1; 2252 #endif /* WPA_TRACE_BFD */ 2253 } 2254 2255 2256 static int hostapd_ctrl_test_fail(struct hostapd_data *hapd, char *cmd) 2257 { 2258 #ifdef WPA_TRACE_BFD 2259 char *pos; 2260 2261 wpa_trace_test_fail_after = atoi(cmd); 2262 pos = os_strchr(cmd, ':'); 2263 if (pos) { 2264 pos++; 2265 os_strlcpy(wpa_trace_test_fail_func, pos, 2266 sizeof(wpa_trace_test_fail_func)); 2267 } else { 2268 wpa_trace_test_fail_after = 0; 2269 } 2270 2271 return 0; 2272 #else /* WPA_TRACE_BFD */ 2273 return -1; 2274 #endif /* WPA_TRACE_BFD */ 2275 } 2276 2277 2278 static int hostapd_ctrl_get_fail(struct hostapd_data *hapd, 2279 char *buf, size_t buflen) 2280 { 2281 #ifdef WPA_TRACE_BFD 2282 return os_snprintf(buf, buflen, "%u:%s", wpa_trace_test_fail_after, 2283 wpa_trace_test_fail_func); 2284 #else /* WPA_TRACE_BFD */ 2285 return -1; 2286 #endif /* WPA_TRACE_BFD */ 2287 } 2288 2289 2290 static int hostapd_ctrl_reset_pn(struct hostapd_data *hapd, const char *cmd) 2291 { 2292 struct sta_info *sta; 2293 u8 addr[ETH_ALEN]; 2294 u8 zero[WPA_TK_MAX_LEN]; 2295 2296 os_memset(zero, 0, sizeof(zero)); 2297 2298 if (hwaddr_aton(cmd, addr)) 2299 return -1; 2300 2301 if (is_broadcast_ether_addr(addr) && os_strstr(cmd, " BIGTK")) { 2302 if (hapd->last_bigtk_alg == WPA_ALG_NONE) 2303 return -1; 2304 2305 wpa_printf(MSG_INFO, "TESTING: Reset BIPN for BIGTK"); 2306 2307 /* First, use a zero key to avoid any possible duplicate key 2308 * avoidance in the driver. */ 2309 if (hostapd_drv_set_key(hapd->conf->iface, hapd, 2310 hapd->last_bigtk_alg, 2311 broadcast_ether_addr, 2312 hapd->last_bigtk_key_idx, 0, 1, NULL, 0, 2313 zero, hapd->last_bigtk_len, 2314 KEY_FLAG_GROUP_TX_DEFAULT) < 0) 2315 return -1; 2316 2317 /* Set the previously configured key to reset its TSC */ 2318 return hostapd_drv_set_key(hapd->conf->iface, hapd, 2319 hapd->last_bigtk_alg, 2320 broadcast_ether_addr, 2321 hapd->last_bigtk_key_idx, 0, 1, NULL, 2322 0, hapd->last_bigtk, 2323 hapd->last_bigtk_len, 2324 KEY_FLAG_GROUP_TX_DEFAULT); 2325 } 2326 2327 if (is_broadcast_ether_addr(addr) && os_strstr(cmd, "IGTK")) { 2328 if (hapd->last_igtk_alg == WPA_ALG_NONE) 2329 return -1; 2330 2331 wpa_printf(MSG_INFO, "TESTING: Reset IPN for IGTK"); 2332 2333 /* First, use a zero key to avoid any possible duplicate key 2334 * avoidance in the driver. */ 2335 if (hostapd_drv_set_key(hapd->conf->iface, hapd, 2336 hapd->last_igtk_alg, 2337 broadcast_ether_addr, 2338 hapd->last_igtk_key_idx, 0, 1, NULL, 0, 2339 zero, hapd->last_igtk_len, 2340 KEY_FLAG_GROUP_TX_DEFAULT) < 0) 2341 return -1; 2342 2343 /* Set the previously configured key to reset its TSC */ 2344 return hostapd_drv_set_key(hapd->conf->iface, hapd, 2345 hapd->last_igtk_alg, 2346 broadcast_ether_addr, 2347 hapd->last_igtk_key_idx, 0, 1, NULL, 2348 0, hapd->last_igtk, 2349 hapd->last_igtk_len, 2350 KEY_FLAG_GROUP_TX_DEFAULT); 2351 } 2352 2353 if (is_broadcast_ether_addr(addr)) { 2354 if (hapd->last_gtk_alg == WPA_ALG_NONE) 2355 return -1; 2356 2357 wpa_printf(MSG_INFO, "TESTING: Reset PN for GTK"); 2358 2359 /* First, use a zero key to avoid any possible duplicate key 2360 * avoidance in the driver. */ 2361 if (hostapd_drv_set_key(hapd->conf->iface, hapd, 2362 hapd->last_gtk_alg, 2363 broadcast_ether_addr, 2364 hapd->last_gtk_key_idx, 0, 1, NULL, 0, 2365 zero, hapd->last_gtk_len, 2366 KEY_FLAG_GROUP_TX_DEFAULT) < 0) 2367 return -1; 2368 2369 /* Set the previously configured key to reset its TSC */ 2370 return hostapd_drv_set_key(hapd->conf->iface, hapd, 2371 hapd->last_gtk_alg, 2372 broadcast_ether_addr, 2373 hapd->last_gtk_key_idx, 0, 1, NULL, 2374 0, hapd->last_gtk, 2375 hapd->last_gtk_len, 2376 KEY_FLAG_GROUP_TX_DEFAULT); 2377 } 2378 2379 sta = ap_get_sta(hapd, addr); 2380 if (!sta) 2381 return -1; 2382 2383 if (sta->last_tk_alg == WPA_ALG_NONE) 2384 return -1; 2385 2386 wpa_printf(MSG_INFO, "TESTING: Reset PN for " MACSTR, 2387 MAC2STR(sta->addr)); 2388 2389 /* First, use a zero key to avoid any possible duplicate key avoidance 2390 * in the driver. */ 2391 if (hostapd_drv_set_key(hapd->conf->iface, hapd, sta->last_tk_alg, 2392 sta->addr, sta->last_tk_key_idx, 0, 1, NULL, 0, 2393 zero, sta->last_tk_len, 2394 KEY_FLAG_PAIRWISE_RX_TX) < 0) 2395 return -1; 2396 2397 /* Set the previously configured key to reset its TSC/RSC */ 2398 return hostapd_drv_set_key(hapd->conf->iface, hapd, sta->last_tk_alg, 2399 sta->addr, sta->last_tk_key_idx, 0, 1, NULL, 2400 0, sta->last_tk, sta->last_tk_len, 2401 KEY_FLAG_PAIRWISE_RX_TX); 2402 } 2403 2404 2405 static int hostapd_ctrl_set_key(struct hostapd_data *hapd, const char *cmd) 2406 { 2407 u8 addr[ETH_ALEN]; 2408 const char *pos = cmd; 2409 enum wpa_alg alg; 2410 enum key_flag key_flag; 2411 int idx, set_tx; 2412 u8 seq[6], key[WPA_TK_MAX_LEN]; 2413 size_t key_len; 2414 2415 /* parameters: alg addr idx set_tx seq key key_flag */ 2416 2417 alg = atoi(pos); 2418 pos = os_strchr(pos, ' '); 2419 if (!pos) 2420 return -1; 2421 pos++; 2422 if (hwaddr_aton(pos, addr)) 2423 return -1; 2424 pos += 17; 2425 if (*pos != ' ') 2426 return -1; 2427 pos++; 2428 idx = atoi(pos); 2429 pos = os_strchr(pos, ' '); 2430 if (!pos) 2431 return -1; 2432 pos++; 2433 set_tx = atoi(pos); 2434 pos = os_strchr(pos, ' '); 2435 if (!pos) 2436 return -1; 2437 pos++; 2438 if (hexstr2bin(pos, seq, sizeof(seq)) < 0) 2439 return -1; 2440 pos += 2 * 6; 2441 if (*pos != ' ') 2442 return -1; 2443 pos++; 2444 if (!os_strchr(pos, ' ')) 2445 return -1; 2446 key_len = (os_strchr(pos, ' ') - pos) / 2; 2447 if (hexstr2bin(pos, key, key_len) < 0) 2448 return -1; 2449 pos += 2 * key_len; 2450 if (*pos != ' ') 2451 return -1; 2452 2453 pos++; 2454 key_flag = atoi(pos); 2455 pos = os_strchr(pos, ' '); 2456 if (pos) 2457 return -1; 2458 2459 wpa_printf(MSG_INFO, "TESTING: Set key"); 2460 return hostapd_drv_set_key(hapd->conf->iface, hapd, alg, addr, idx, 0, 2461 set_tx, seq, 6, key, key_len, key_flag); 2462 } 2463 2464 2465 static void restore_tk(void *ctx1, void *ctx2) 2466 { 2467 struct hostapd_data *hapd = ctx1; 2468 struct sta_info *sta = ctx2; 2469 2470 wpa_printf(MSG_INFO, "TESTING: Restore TK for " MACSTR, 2471 MAC2STR(sta->addr)); 2472 /* This does not really restore the TSC properly, so this will result 2473 * in replay protection issues for now since there is no clean way of 2474 * preventing encryption of a single EAPOL frame. */ 2475 hostapd_drv_set_key(hapd->conf->iface, hapd, sta->last_tk_alg, 2476 sta->addr, sta->last_tk_key_idx, 0, 1, NULL, 0, 2477 sta->last_tk, sta->last_tk_len, 2478 KEY_FLAG_PAIRWISE_RX_TX); 2479 } 2480 2481 2482 static int hostapd_ctrl_resend_m1(struct hostapd_data *hapd, const char *cmd) 2483 { 2484 struct sta_info *sta; 2485 u8 addr[ETH_ALEN]; 2486 int plain = os_strstr(cmd, "plaintext") != NULL; 2487 2488 if (hwaddr_aton(cmd, addr)) 2489 return -1; 2490 2491 sta = ap_get_sta(hapd, addr); 2492 if (!sta || !sta->wpa_sm) 2493 return -1; 2494 2495 if (plain && sta->last_tk_alg == WPA_ALG_NONE) 2496 plain = 0; /* no need for special processing */ 2497 if (plain) { 2498 wpa_printf(MSG_INFO, "TESTING: Clear TK for " MACSTR, 2499 MAC2STR(sta->addr)); 2500 hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_NONE, 2501 sta->addr, sta->last_tk_key_idx, 0, 0, NULL, 2502 0, NULL, 0, KEY_FLAG_PAIRWISE); 2503 } 2504 2505 wpa_printf(MSG_INFO, "TESTING: Send M1 to " MACSTR, MAC2STR(sta->addr)); 2506 return wpa_auth_resend_m1(sta->wpa_sm, 2507 os_strstr(cmd, "change-anonce") != NULL, 2508 plain ? restore_tk : NULL, hapd, sta); 2509 } 2510 2511 2512 static int hostapd_ctrl_resend_m3(struct hostapd_data *hapd, const char *cmd) 2513 { 2514 struct sta_info *sta; 2515 u8 addr[ETH_ALEN]; 2516 int plain = os_strstr(cmd, "plaintext") != NULL; 2517 2518 if (hwaddr_aton(cmd, addr)) 2519 return -1; 2520 2521 sta = ap_get_sta(hapd, addr); 2522 if (!sta || !sta->wpa_sm) 2523 return -1; 2524 2525 if (plain && sta->last_tk_alg == WPA_ALG_NONE) 2526 plain = 0; /* no need for special processing */ 2527 if (plain) { 2528 wpa_printf(MSG_INFO, "TESTING: Clear TK for " MACSTR, 2529 MAC2STR(sta->addr)); 2530 hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_NONE, 2531 sta->addr, sta->last_tk_key_idx, 0, 0, NULL, 2532 0, NULL, 0, KEY_FLAG_PAIRWISE); 2533 } 2534 2535 wpa_printf(MSG_INFO, "TESTING: Send M3 to " MACSTR, MAC2STR(sta->addr)); 2536 return wpa_auth_resend_m3(sta->wpa_sm, 2537 plain ? restore_tk : NULL, hapd, sta); 2538 } 2539 2540 2541 static int hostapd_ctrl_resend_group_m1(struct hostapd_data *hapd, 2542 const char *cmd) 2543 { 2544 struct sta_info *sta; 2545 u8 addr[ETH_ALEN]; 2546 int plain = os_strstr(cmd, "plaintext") != NULL; 2547 2548 if (hwaddr_aton(cmd, addr)) 2549 return -1; 2550 2551 sta = ap_get_sta(hapd, addr); 2552 if (!sta || !sta->wpa_sm) 2553 return -1; 2554 2555 if (plain && sta->last_tk_alg == WPA_ALG_NONE) 2556 plain = 0; /* no need for special processing */ 2557 if (plain) { 2558 wpa_printf(MSG_INFO, "TESTING: Clear TK for " MACSTR, 2559 MAC2STR(sta->addr)); 2560 hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_NONE, 2561 sta->addr, sta->last_tk_key_idx, 0, 0, NULL, 2562 0, NULL, 0, KEY_FLAG_PAIRWISE); 2563 } 2564 2565 wpa_printf(MSG_INFO, 2566 "TESTING: Send group M1 for the same GTK and zero RSC to " 2567 MACSTR, MAC2STR(sta->addr)); 2568 return wpa_auth_resend_group_m1(sta->wpa_sm, 2569 plain ? restore_tk : NULL, hapd, sta); 2570 } 2571 2572 2573 static int hostapd_ctrl_rekey_ptk(struct hostapd_data *hapd, const char *cmd) 2574 { 2575 struct sta_info *sta; 2576 u8 addr[ETH_ALEN]; 2577 2578 if (hwaddr_aton(cmd, addr)) 2579 return -1; 2580 2581 sta = ap_get_sta(hapd, addr); 2582 if (!sta || !sta->wpa_sm) 2583 return -1; 2584 2585 return wpa_auth_rekey_ptk(hapd->wpa_auth, sta->wpa_sm); 2586 } 2587 2588 2589 static int hostapd_ctrl_get_pmksa_pmk(struct hostapd_data *hapd, const u8 *addr, 2590 char *buf, size_t buflen) 2591 { 2592 struct rsn_pmksa_cache_entry *pmksa; 2593 2594 pmksa = wpa_auth_pmksa_get(hapd->wpa_auth, addr, NULL); 2595 if (!pmksa) 2596 return -1; 2597 2598 return wpa_snprintf_hex(buf, buflen, pmksa->pmk, pmksa->pmk_len); 2599 } 2600 2601 2602 static int hostapd_ctrl_get_pmk(struct hostapd_data *hapd, const char *cmd, 2603 char *buf, size_t buflen) 2604 { 2605 struct sta_info *sta; 2606 u8 addr[ETH_ALEN]; 2607 const u8 *pmk; 2608 int pmk_len; 2609 2610 if (hwaddr_aton(cmd, addr)) 2611 return -1; 2612 2613 sta = ap_get_sta(hapd, addr); 2614 if (!sta || !sta->wpa_sm) { 2615 wpa_printf(MSG_DEBUG, "No STA WPA state machine for " MACSTR, 2616 MAC2STR(addr)); 2617 return hostapd_ctrl_get_pmksa_pmk(hapd, addr, buf, buflen); 2618 } 2619 pmk = wpa_auth_get_pmk(sta->wpa_sm, &pmk_len); 2620 if (!pmk || !pmk_len) { 2621 wpa_printf(MSG_DEBUG, "No PMK stored for " MACSTR, 2622 MAC2STR(addr)); 2623 return hostapd_ctrl_get_pmksa_pmk(hapd, addr, buf, buflen); 2624 } 2625 2626 return wpa_snprintf_hex(buf, buflen, pmk, pmk_len); 2627 } 2628 2629 2630 static int hostapd_ctrl_register_frame(struct hostapd_data *hapd, 2631 const char *cmd) 2632 { 2633 u16 type; 2634 char *pos, *end; 2635 u8 match[10]; 2636 size_t match_len; 2637 bool multicast = false; 2638 2639 type = strtol(cmd, &pos, 16); 2640 if (*pos != ' ') 2641 return -1; 2642 pos++; 2643 end = os_strchr(pos, ' '); 2644 if (end) { 2645 match_len = end - pos; 2646 multicast = os_strstr(end, "multicast") != NULL; 2647 } else { 2648 match_len = os_strlen(pos) / 2; 2649 } 2650 if (hexstr2bin(pos, match, match_len)) 2651 return -1; 2652 2653 return hostapd_drv_register_frame(hapd, type, match, match_len, 2654 multicast); 2655 } 2656 2657 #endif /* CONFIG_TESTING_OPTIONS */ 2658 2659 2660 #ifdef NEED_AP_MLME 2661 static int hostapd_ctrl_check_freq_params(struct hostapd_freq_params *params) 2662 { 2663 switch (params->bandwidth) { 2664 case 0: 2665 /* bandwidth not specified: use 20 MHz by default */ 2666 /* fall-through */ 2667 case 20: 2668 if (params->center_freq1 && 2669 params->center_freq1 != params->freq) 2670 return -1; 2671 2672 if (params->center_freq2 || params->sec_channel_offset) 2673 return -1; 2674 break; 2675 case 40: 2676 if (params->center_freq2 || !params->sec_channel_offset) 2677 return -1; 2678 2679 if (!params->center_freq1) 2680 break; 2681 switch (params->sec_channel_offset) { 2682 case 1: 2683 if (params->freq + 10 != params->center_freq1) 2684 return -1; 2685 break; 2686 case -1: 2687 if (params->freq - 10 != params->center_freq1) 2688 return -1; 2689 break; 2690 default: 2691 return -1; 2692 } 2693 break; 2694 case 80: 2695 if (!params->center_freq1 || !params->sec_channel_offset) 2696 return 1; 2697 2698 switch (params->sec_channel_offset) { 2699 case 1: 2700 if (params->freq - 10 != params->center_freq1 && 2701 params->freq + 30 != params->center_freq1) 2702 return 1; 2703 break; 2704 case -1: 2705 if (params->freq + 10 != params->center_freq1 && 2706 params->freq - 30 != params->center_freq1) 2707 return -1; 2708 break; 2709 default: 2710 return -1; 2711 } 2712 2713 /* Adjacent and overlapped are not allowed for 80+80 */ 2714 if (params->center_freq2 && 2715 params->center_freq1 - params->center_freq2 <= 80 && 2716 params->center_freq2 - params->center_freq1 <= 80) 2717 return 1; 2718 break; 2719 case 160: 2720 if (!params->center_freq1 || params->center_freq2 || 2721 !params->sec_channel_offset) 2722 return -1; 2723 2724 switch (params->sec_channel_offset) { 2725 case 1: 2726 if (params->freq + 70 != params->center_freq1 && 2727 params->freq + 30 != params->center_freq1 && 2728 params->freq - 10 != params->center_freq1 && 2729 params->freq - 50 != params->center_freq1) 2730 return -1; 2731 break; 2732 case -1: 2733 if (params->freq + 50 != params->center_freq1 && 2734 params->freq + 10 != params->center_freq1 && 2735 params->freq - 30 != params->center_freq1 && 2736 params->freq - 70 != params->center_freq1) 2737 return -1; 2738 break; 2739 default: 2740 return -1; 2741 } 2742 break; 2743 default: 2744 return -1; 2745 } 2746 2747 return 0; 2748 } 2749 #endif /* NEED_AP_MLME */ 2750 2751 2752 static int hostapd_ctrl_iface_chan_switch(struct hostapd_iface *iface, 2753 char *pos) 2754 { 2755 #ifdef NEED_AP_MLME 2756 struct csa_settings settings; 2757 int ret; 2758 int dfs_range = 0; 2759 unsigned int i; 2760 int bandwidth; 2761 u8 chan; 2762 2763 ret = hostapd_parse_csa_settings(pos, &settings); 2764 if (ret) 2765 return ret; 2766 2767 ret = hostapd_ctrl_check_freq_params(&settings.freq_params); 2768 if (ret) { 2769 wpa_printf(MSG_INFO, 2770 "chanswitch: invalid frequency settings provided"); 2771 return ret; 2772 } 2773 2774 switch (settings.freq_params.bandwidth) { 2775 case 40: 2776 bandwidth = CHAN_WIDTH_40; 2777 break; 2778 case 80: 2779 if (settings.freq_params.center_freq2) 2780 bandwidth = CHAN_WIDTH_80P80; 2781 else 2782 bandwidth = CHAN_WIDTH_80; 2783 break; 2784 case 160: 2785 bandwidth = CHAN_WIDTH_160; 2786 break; 2787 default: 2788 bandwidth = CHAN_WIDTH_20; 2789 break; 2790 } 2791 2792 if (settings.freq_params.center_freq1) 2793 dfs_range += hostapd_is_dfs_overlap( 2794 iface, bandwidth, settings.freq_params.center_freq1); 2795 else 2796 dfs_range += hostapd_is_dfs_overlap( 2797 iface, bandwidth, settings.freq_params.freq); 2798 2799 if (settings.freq_params.center_freq2) 2800 dfs_range += hostapd_is_dfs_overlap( 2801 iface, bandwidth, settings.freq_params.center_freq2); 2802 2803 if (dfs_range) { 2804 ret = ieee80211_freq_to_chan(settings.freq_params.freq, &chan); 2805 if (ret == NUM_HOSTAPD_MODES) { 2806 wpa_printf(MSG_ERROR, 2807 "Failed to get channel for (freq=%d, sec_channel_offset=%d, bw=%d)", 2808 settings.freq_params.freq, 2809 settings.freq_params.sec_channel_offset, 2810 settings.freq_params.bandwidth); 2811 return -1; 2812 } 2813 2814 settings.freq_params.channel = chan; 2815 2816 wpa_printf(MSG_DEBUG, 2817 "DFS/CAC to (channel=%u, freq=%d, sec_channel_offset=%d, bw=%d, center_freq1=%d)", 2818 settings.freq_params.channel, 2819 settings.freq_params.freq, 2820 settings.freq_params.sec_channel_offset, 2821 settings.freq_params.bandwidth, 2822 settings.freq_params.center_freq1); 2823 2824 /* Perform CAC and switch channel */ 2825 hostapd_switch_channel_fallback(iface, &settings.freq_params); 2826 return 0; 2827 } 2828 2829 for (i = 0; i < iface->num_bss; i++) { 2830 2831 /* Save CHAN_SWITCH VHT and HE config */ 2832 hostapd_chan_switch_config(iface->bss[i], 2833 &settings.freq_params); 2834 2835 ret = hostapd_switch_channel(iface->bss[i], &settings); 2836 if (ret) { 2837 /* FIX: What do we do if CSA fails in the middle of 2838 * submitting multi-BSS CSA requests? */ 2839 return ret; 2840 } 2841 } 2842 2843 return 0; 2844 #else /* NEED_AP_MLME */ 2845 return -1; 2846 #endif /* NEED_AP_MLME */ 2847 } 2848 2849 2850 static int hostapd_ctrl_iface_mib(struct hostapd_data *hapd, char *reply, 2851 int reply_size, const char *param) 2852 { 2853 #ifdef RADIUS_SERVER 2854 if (os_strcmp(param, "radius_server") == 0) { 2855 return radius_server_get_mib(hapd->radius_srv, reply, 2856 reply_size); 2857 } 2858 #endif /* RADIUS_SERVER */ 2859 return -1; 2860 } 2861 2862 2863 static int hostapd_ctrl_iface_vendor(struct hostapd_data *hapd, char *cmd, 2864 char *buf, size_t buflen) 2865 { 2866 int ret; 2867 char *pos, *temp = NULL; 2868 u8 *data = NULL; 2869 unsigned int vendor_id, subcmd; 2870 enum nested_attr nested_attr_flag = NESTED_ATTR_UNSPECIFIED; 2871 struct wpabuf *reply; 2872 size_t data_len = 0; 2873 2874 /** 2875 * cmd: <vendor id> <subcommand id> [<hex formatted data>] 2876 * [nested=<0|1>] 2877 */ 2878 vendor_id = strtoul(cmd, &pos, 16); 2879 if (!isblank((unsigned char) *pos)) 2880 return -EINVAL; 2881 2882 subcmd = strtoul(pos, &pos, 10); 2883 2884 if (*pos != '\0') { 2885 if (!isblank((unsigned char) *pos++)) 2886 return -EINVAL; 2887 2888 temp = os_strchr(pos, ' '); 2889 data_len = temp ? (size_t) (temp - pos) : os_strlen(pos); 2890 } 2891 2892 if (data_len) { 2893 data_len /= 2; 2894 data = os_malloc(data_len); 2895 if (!data) 2896 return -ENOBUFS; 2897 2898 if (hexstr2bin(pos, data, data_len)) { 2899 wpa_printf(MSG_DEBUG, 2900 "Vendor command: wrong parameter format"); 2901 os_free(data); 2902 return -EINVAL; 2903 } 2904 } 2905 2906 pos = os_strstr(cmd, "nested="); 2907 if (pos) 2908 nested_attr_flag = atoi(pos + 7) ? NESTED_ATTR_USED : 2909 NESTED_ATTR_NOT_USED; 2910 2911 reply = wpabuf_alloc((buflen - 1) / 2); 2912 if (!reply) { 2913 os_free(data); 2914 return -ENOBUFS; 2915 } 2916 2917 ret = hostapd_drv_vendor_cmd(hapd, vendor_id, subcmd, data, data_len, 2918 nested_attr_flag, reply); 2919 2920 if (ret == 0) 2921 ret = wpa_snprintf_hex(buf, buflen, wpabuf_head_u8(reply), 2922 wpabuf_len(reply)); 2923 2924 wpabuf_free(reply); 2925 os_free(data); 2926 2927 return ret; 2928 } 2929 2930 2931 static int hostapd_ctrl_iface_eapol_reauth(struct hostapd_data *hapd, 2932 const char *cmd) 2933 { 2934 u8 addr[ETH_ALEN]; 2935 struct sta_info *sta; 2936 2937 if (hwaddr_aton(cmd, addr)) 2938 return -1; 2939 2940 sta = ap_get_sta(hapd, addr); 2941 if (!sta || !sta->eapol_sm) 2942 return -1; 2943 2944 eapol_auth_reauthenticate(sta->eapol_sm); 2945 return 0; 2946 } 2947 2948 2949 static int hostapd_ctrl_iface_eapol_set(struct hostapd_data *hapd, char *cmd) 2950 { 2951 u8 addr[ETH_ALEN]; 2952 struct sta_info *sta; 2953 char *pos = cmd, *param; 2954 2955 if (hwaddr_aton(pos, addr) || pos[17] != ' ') 2956 return -1; 2957 pos += 18; 2958 param = pos; 2959 pos = os_strchr(pos, ' '); 2960 if (!pos) 2961 return -1; 2962 *pos++ = '\0'; 2963 2964 sta = ap_get_sta(hapd, addr); 2965 if (!sta || !sta->eapol_sm) 2966 return -1; 2967 2968 return eapol_auth_set_conf(sta->eapol_sm, param, pos); 2969 } 2970 2971 2972 static int hostapd_ctrl_iface_log_level(struct hostapd_data *hapd, char *cmd, 2973 char *buf, size_t buflen) 2974 { 2975 char *pos, *end, *stamp; 2976 int ret; 2977 2978 /* cmd: "LOG_LEVEL [<level>]" */ 2979 if (*cmd == '\0') { 2980 pos = buf; 2981 end = buf + buflen; 2982 ret = os_snprintf(pos, end - pos, "Current level: %s\n" 2983 "Timestamp: %d\n", 2984 debug_level_str(wpa_debug_level), 2985 wpa_debug_timestamp); 2986 if (os_snprintf_error(end - pos, ret)) 2987 ret = 0; 2988 2989 return ret; 2990 } 2991 2992 while (*cmd == ' ') 2993 cmd++; 2994 2995 stamp = os_strchr(cmd, ' '); 2996 if (stamp) { 2997 *stamp++ = '\0'; 2998 while (*stamp == ' ') { 2999 stamp++; 3000 } 3001 } 3002 3003 if (os_strlen(cmd)) { 3004 int level = str_to_debug_level(cmd); 3005 if (level < 0) 3006 return -1; 3007 wpa_debug_level = level; 3008 } 3009 3010 if (stamp && os_strlen(stamp)) 3011 wpa_debug_timestamp = atoi(stamp); 3012 3013 os_memcpy(buf, "OK\n", 3); 3014 return 3; 3015 } 3016 3017 3018 #ifdef NEED_AP_MLME 3019 static int hostapd_ctrl_iface_track_sta_list(struct hostapd_data *hapd, 3020 char *buf, size_t buflen) 3021 { 3022 struct hostapd_iface *iface = hapd->iface; 3023 char *pos, *end; 3024 struct hostapd_sta_info *info; 3025 struct os_reltime now; 3026 3027 if (!iface->num_sta_seen) 3028 return 0; 3029 3030 sta_track_expire(iface, 0); 3031 3032 pos = buf; 3033 end = buf + buflen; 3034 3035 os_get_reltime(&now); 3036 dl_list_for_each_reverse(info, &iface->sta_seen, 3037 struct hostapd_sta_info, list) { 3038 struct os_reltime age; 3039 int ret; 3040 3041 os_reltime_sub(&now, &info->last_seen, &age); 3042 ret = os_snprintf(pos, end - pos, MACSTR " %u %d\n", 3043 MAC2STR(info->addr), (unsigned int) age.sec, 3044 info->ssi_signal); 3045 if (os_snprintf_error(end - pos, ret)) 3046 break; 3047 pos += ret; 3048 } 3049 3050 return pos - buf; 3051 } 3052 #endif /* NEED_AP_MLME */ 3053 3054 3055 static int hostapd_ctrl_iface_req_lci(struct hostapd_data *hapd, 3056 const char *cmd) 3057 { 3058 u8 addr[ETH_ALEN]; 3059 3060 if (hwaddr_aton(cmd, addr)) { 3061 wpa_printf(MSG_INFO, "CTRL: REQ_LCI: Invalid MAC address"); 3062 return -1; 3063 } 3064 3065 return hostapd_send_lci_req(hapd, addr); 3066 } 3067 3068 3069 static int hostapd_ctrl_iface_req_range(struct hostapd_data *hapd, char *cmd) 3070 { 3071 u8 addr[ETH_ALEN]; 3072 char *token, *context = NULL; 3073 int random_interval, min_ap; 3074 u8 responders[ETH_ALEN * RRM_RANGE_REQ_MAX_RESPONDERS]; 3075 unsigned int n_responders; 3076 3077 token = str_token(cmd, " ", &context); 3078 if (!token || hwaddr_aton(token, addr)) { 3079 wpa_printf(MSG_INFO, 3080 "CTRL: REQ_RANGE - Bad destination address"); 3081 return -1; 3082 } 3083 3084 token = str_token(cmd, " ", &context); 3085 if (!token) 3086 return -1; 3087 3088 random_interval = atoi(token); 3089 if (random_interval < 0 || random_interval > 0xffff) 3090 return -1; 3091 3092 token = str_token(cmd, " ", &context); 3093 if (!token) 3094 return -1; 3095 3096 min_ap = atoi(token); 3097 if (min_ap <= 0 || min_ap > WLAN_RRM_RANGE_REQ_MAX_MIN_AP) 3098 return -1; 3099 3100 n_responders = 0; 3101 while ((token = str_token(cmd, " ", &context))) { 3102 if (n_responders == RRM_RANGE_REQ_MAX_RESPONDERS) { 3103 wpa_printf(MSG_INFO, 3104 "CTRL: REQ_RANGE: Too many responders"); 3105 return -1; 3106 } 3107 3108 if (hwaddr_aton(token, responders + n_responders * ETH_ALEN)) { 3109 wpa_printf(MSG_INFO, 3110 "CTRL: REQ_RANGE: Bad responder address"); 3111 return -1; 3112 } 3113 3114 n_responders++; 3115 } 3116 3117 if (!n_responders) { 3118 wpa_printf(MSG_INFO, 3119 "CTRL: REQ_RANGE - No FTM responder address"); 3120 return -1; 3121 } 3122 3123 return hostapd_send_range_req(hapd, addr, random_interval, min_ap, 3124 responders, n_responders); 3125 } 3126 3127 3128 static int hostapd_ctrl_iface_req_beacon(struct hostapd_data *hapd, 3129 const char *cmd, char *reply, 3130 size_t reply_size) 3131 { 3132 u8 addr[ETH_ALEN]; 3133 const char *pos; 3134 struct wpabuf *req; 3135 int ret; 3136 u8 req_mode = 0; 3137 3138 if (hwaddr_aton(cmd, addr)) 3139 return -1; 3140 pos = os_strchr(cmd, ' '); 3141 if (!pos) 3142 return -1; 3143 pos++; 3144 if (os_strncmp(pos, "req_mode=", 9) == 0) { 3145 int val = hex2byte(pos + 9); 3146 3147 if (val < 0) 3148 return -1; 3149 req_mode = val; 3150 pos += 11; 3151 pos = os_strchr(pos, ' '); 3152 if (!pos) 3153 return -1; 3154 pos++; 3155 } 3156 req = wpabuf_parse_bin(pos); 3157 if (!req) 3158 return -1; 3159 3160 ret = hostapd_send_beacon_req(hapd, addr, req_mode, req); 3161 wpabuf_free(req); 3162 if (ret >= 0) 3163 ret = os_snprintf(reply, reply_size, "%d", ret); 3164 return ret; 3165 } 3166 3167 3168 static int hostapd_ctrl_iface_show_neighbor(struct hostapd_data *hapd, 3169 char *buf, size_t buflen) 3170 { 3171 if (!(hapd->conf->radio_measurements[0] & 3172 WLAN_RRM_CAPS_NEIGHBOR_REPORT)) { 3173 wpa_printf(MSG_ERROR, 3174 "CTRL: SHOW_NEIGHBOR: Neighbor report is not enabled"); 3175 return -1; 3176 } 3177 3178 return hostapd_neighbor_show(hapd, buf, buflen); 3179 } 3180 3181 3182 static int hostapd_ctrl_iface_set_neighbor(struct hostapd_data *hapd, char *buf) 3183 { 3184 struct wpa_ssid_value ssid; 3185 u8 bssid[ETH_ALEN]; 3186 struct wpabuf *nr, *lci = NULL, *civic = NULL; 3187 int stationary = 0; 3188 char *tmp; 3189 int ret; 3190 3191 if (!(hapd->conf->radio_measurements[0] & 3192 WLAN_RRM_CAPS_NEIGHBOR_REPORT)) { 3193 wpa_printf(MSG_ERROR, 3194 "CTRL: SET_NEIGHBOR: Neighbor report is not enabled"); 3195 return -1; 3196 } 3197 3198 if (hwaddr_aton(buf, bssid)) { 3199 wpa_printf(MSG_ERROR, "CTRL: SET_NEIGHBOR: Bad BSSID"); 3200 return -1; 3201 } 3202 3203 tmp = os_strstr(buf, "ssid="); 3204 if (!tmp || ssid_parse(tmp + 5, &ssid)) { 3205 wpa_printf(MSG_ERROR, 3206 "CTRL: SET_NEIGHBOR: Bad or missing SSID"); 3207 return -1; 3208 } 3209 buf = os_strchr(tmp + 6, tmp[5] == '"' ? '"' : ' '); 3210 if (!buf) 3211 return -1; 3212 3213 tmp = os_strstr(buf, "nr="); 3214 if (!tmp) { 3215 wpa_printf(MSG_ERROR, 3216 "CTRL: SET_NEIGHBOR: Missing Neighbor Report element"); 3217 return -1; 3218 } 3219 3220 buf = os_strchr(tmp, ' '); 3221 if (buf) 3222 *buf++ = '\0'; 3223 3224 nr = wpabuf_parse_bin(tmp + 3); 3225 if (!nr) { 3226 wpa_printf(MSG_ERROR, 3227 "CTRL: SET_NEIGHBOR: Bad Neighbor Report element"); 3228 return -1; 3229 } 3230 3231 if (!buf) 3232 goto set; 3233 3234 tmp = os_strstr(buf, "lci="); 3235 if (tmp) { 3236 buf = os_strchr(tmp, ' '); 3237 if (buf) 3238 *buf++ = '\0'; 3239 lci = wpabuf_parse_bin(tmp + 4); 3240 if (!lci) { 3241 wpa_printf(MSG_ERROR, 3242 "CTRL: SET_NEIGHBOR: Bad LCI subelement"); 3243 wpabuf_free(nr); 3244 return -1; 3245 } 3246 } 3247 3248 if (!buf) 3249 goto set; 3250 3251 tmp = os_strstr(buf, "civic="); 3252 if (tmp) { 3253 buf = os_strchr(tmp, ' '); 3254 if (buf) 3255 *buf++ = '\0'; 3256 civic = wpabuf_parse_bin(tmp + 6); 3257 if (!civic) { 3258 wpa_printf(MSG_ERROR, 3259 "CTRL: SET_NEIGHBOR: Bad civic subelement"); 3260 wpabuf_free(nr); 3261 wpabuf_free(lci); 3262 return -1; 3263 } 3264 } 3265 3266 if (!buf) 3267 goto set; 3268 3269 if (os_strstr(buf, "stat")) 3270 stationary = 1; 3271 3272 set: 3273 ret = hostapd_neighbor_set(hapd, bssid, &ssid, nr, lci, civic, 3274 stationary); 3275 3276 wpabuf_free(nr); 3277 wpabuf_free(lci); 3278 wpabuf_free(civic); 3279 3280 return ret; 3281 } 3282 3283 3284 static int hostapd_ctrl_iface_remove_neighbor(struct hostapd_data *hapd, 3285 char *buf) 3286 { 3287 struct wpa_ssid_value ssid; 3288 struct wpa_ssid_value *ssidp = NULL; 3289 u8 bssid[ETH_ALEN]; 3290 char *tmp; 3291 3292 if (hwaddr_aton(buf, bssid)) { 3293 wpa_printf(MSG_ERROR, "CTRL: REMOVE_NEIGHBOR: Bad BSSID"); 3294 return -1; 3295 } 3296 3297 tmp = os_strstr(buf, "ssid="); 3298 if (tmp) { 3299 ssidp = &ssid; 3300 if (ssid_parse(tmp + 5, &ssid)) { 3301 wpa_printf(MSG_ERROR, 3302 "CTRL: REMOVE_NEIGHBOR: Bad SSID"); 3303 return -1; 3304 } 3305 } 3306 3307 return hostapd_neighbor_remove(hapd, bssid, ssidp); 3308 } 3309 3310 3311 static int hostapd_ctrl_driver_flags(struct hostapd_iface *iface, char *buf, 3312 size_t buflen) 3313 { 3314 int ret, i; 3315 char *pos, *end; 3316 3317 ret = os_snprintf(buf, buflen, "%016llX:\n", 3318 (long long unsigned) iface->drv_flags); 3319 if (os_snprintf_error(buflen, ret)) 3320 return -1; 3321 3322 pos = buf + ret; 3323 end = buf + buflen; 3324 3325 for (i = 0; i < 64; i++) { 3326 if (iface->drv_flags & (1LLU << i)) { 3327 ret = os_snprintf(pos, end - pos, "%s\n", 3328 driver_flag_to_string(1LLU << i)); 3329 if (os_snprintf_error(end - pos, ret)) 3330 return -1; 3331 pos += ret; 3332 } 3333 } 3334 3335 return pos - buf; 3336 } 3337 3338 3339 static int hostapd_ctrl_driver_flags2(struct hostapd_iface *iface, char *buf, 3340 size_t buflen) 3341 { 3342 int ret, i; 3343 char *pos, *end; 3344 3345 ret = os_snprintf(buf, buflen, "%016llX:\n", 3346 (long long unsigned) iface->drv_flags2); 3347 if (os_snprintf_error(buflen, ret)) 3348 return -1; 3349 3350 pos = buf + ret; 3351 end = buf + buflen; 3352 3353 for (i = 0; i < 64; i++) { 3354 if (iface->drv_flags2 & (1LLU << i)) { 3355 ret = os_snprintf(pos, end - pos, "%s\n", 3356 driver_flag2_to_string(1LLU << i)); 3357 if (os_snprintf_error(end - pos, ret)) 3358 return -1; 3359 pos += ret; 3360 } 3361 } 3362 3363 return pos - buf; 3364 } 3365 3366 3367 static int hostapd_ctrl_iface_acl_del_mac(struct mac_acl_entry **acl, int *num, 3368 const char *txtaddr) 3369 { 3370 u8 addr[ETH_ALEN]; 3371 struct vlan_description vlan_id; 3372 3373 if (!(*num)) 3374 return 0; 3375 3376 if (hwaddr_aton(txtaddr, addr)) 3377 return -1; 3378 3379 if (hostapd_maclist_found(*acl, *num, addr, &vlan_id)) 3380 hostapd_remove_acl_mac(acl, num, addr); 3381 3382 return 0; 3383 } 3384 3385 3386 static void hostapd_ctrl_iface_acl_clear_list(struct mac_acl_entry **acl, 3387 int *num) 3388 { 3389 while (*num) 3390 hostapd_remove_acl_mac(acl, num, (*acl)[0].addr); 3391 } 3392 3393 3394 static int hostapd_ctrl_iface_acl_show_mac(struct mac_acl_entry *acl, int num, 3395 char *buf, size_t buflen) 3396 { 3397 int i = 0, len = 0, ret = 0; 3398 3399 if (!acl) 3400 return 0; 3401 3402 while (i < num) { 3403 ret = os_snprintf(buf + len, buflen - len, 3404 MACSTR " VLAN_ID=%d\n", 3405 MAC2STR(acl[i].addr), 3406 acl[i].vlan_id.untagged); 3407 if (ret < 0 || (size_t) ret >= buflen - len) 3408 return len; 3409 i++; 3410 len += ret; 3411 } 3412 return len; 3413 } 3414 3415 3416 static int hostapd_ctrl_iface_acl_add_mac(struct mac_acl_entry **acl, int *num, 3417 const char *cmd) 3418 { 3419 u8 addr[ETH_ALEN]; 3420 struct vlan_description vlan_id; 3421 int ret = 0, vlanid = 0; 3422 const char *pos; 3423 3424 if (hwaddr_aton(cmd, addr)) 3425 return -1; 3426 3427 pos = os_strstr(cmd, "VLAN_ID="); 3428 if (pos) 3429 vlanid = atoi(pos + 8); 3430 3431 if (!hostapd_maclist_found(*acl, *num, addr, &vlan_id)) { 3432 ret = hostapd_add_acl_maclist(acl, num, vlanid, addr); 3433 if (ret != -1 && *acl) 3434 qsort(*acl, *num, sizeof(**acl), hostapd_acl_comp); 3435 } 3436 3437 return ret < 0 ? -1 : 0; 3438 } 3439 3440 3441 static int hostapd_ctrl_iface_get_capability(struct hostapd_data *hapd, 3442 const char *field, char *buf, 3443 size_t buflen) 3444 { 3445 wpa_printf(MSG_DEBUG, "CTRL_IFACE: GET_CAPABILITY '%s'", field); 3446 3447 #ifdef CONFIG_DPP 3448 if (os_strcmp(field, "dpp") == 0) { 3449 int res; 3450 3451 #ifdef CONFIG_DPP2 3452 res = os_snprintf(buf, buflen, "DPP=2"); 3453 #else /* CONFIG_DPP2 */ 3454 res = os_snprintf(buf, buflen, "DPP=1"); 3455 #endif /* CONFIG_DPP2 */ 3456 if (os_snprintf_error(buflen, res)) 3457 return -1; 3458 return res; 3459 } 3460 #endif /* CONFIG_DPP */ 3461 3462 wpa_printf(MSG_DEBUG, "CTRL_IFACE: Unknown GET_CAPABILITY field '%s'", 3463 field); 3464 3465 return -1; 3466 } 3467 3468 3469 #ifdef ANDROID 3470 static int hostapd_ctrl_iface_driver_cmd(struct hostapd_data *hapd, char *cmd, 3471 char *buf, size_t buflen) 3472 { 3473 int ret; 3474 3475 ret = hostapd_drv_driver_cmd(hapd, cmd, buf, buflen); 3476 if (ret == 0) { 3477 ret = os_snprintf(buf, buflen, "%s\n", "OK"); 3478 if (os_snprintf_error(buflen, ret)) 3479 ret = -1; 3480 } 3481 return ret; 3482 } 3483 #endif /* ANDROID */ 3484 3485 3486 static int hostapd_ctrl_iface_receive_process(struct hostapd_data *hapd, 3487 char *buf, char *reply, 3488 int reply_size, 3489 struct sockaddr_storage *from, 3490 socklen_t fromlen) 3491 { 3492 int reply_len, res; 3493 3494 os_memcpy(reply, "OK\n", 3); 3495 reply_len = 3; 3496 3497 if (os_strcmp(buf, "PING") == 0) { 3498 os_memcpy(reply, "PONG\n", 5); 3499 reply_len = 5; 3500 } else if (os_strncmp(buf, "RELOG", 5) == 0) { 3501 if (wpa_debug_reopen_file() < 0) 3502 reply_len = -1; 3503 } else if (os_strncmp(buf, "NOTE ", 5) == 0) { 3504 wpa_printf(MSG_INFO, "NOTE: %s", buf + 5); 3505 } else if (os_strcmp(buf, "STATUS") == 0) { 3506 reply_len = hostapd_ctrl_iface_status(hapd, reply, 3507 reply_size); 3508 } else if (os_strcmp(buf, "STATUS-DRIVER") == 0) { 3509 reply_len = hostapd_drv_status(hapd, reply, reply_size); 3510 } else if (os_strcmp(buf, "MIB") == 0) { 3511 reply_len = ieee802_11_get_mib(hapd, reply, reply_size); 3512 if (reply_len >= 0) { 3513 res = wpa_get_mib(hapd->wpa_auth, reply + reply_len, 3514 reply_size - reply_len); 3515 if (res < 0) 3516 reply_len = -1; 3517 else 3518 reply_len += res; 3519 } 3520 if (reply_len >= 0) { 3521 res = ieee802_1x_get_mib(hapd, reply + reply_len, 3522 reply_size - reply_len); 3523 if (res < 0) 3524 reply_len = -1; 3525 else 3526 reply_len += res; 3527 } 3528 #ifndef CONFIG_NO_RADIUS 3529 if (reply_len >= 0) { 3530 res = radius_client_get_mib(hapd->radius, 3531 reply + reply_len, 3532 reply_size - reply_len); 3533 if (res < 0) 3534 reply_len = -1; 3535 else 3536 reply_len += res; 3537 } 3538 #endif /* CONFIG_NO_RADIUS */ 3539 } else if (os_strncmp(buf, "MIB ", 4) == 0) { 3540 reply_len = hostapd_ctrl_iface_mib(hapd, reply, reply_size, 3541 buf + 4); 3542 } else if (os_strcmp(buf, "STA-FIRST") == 0) { 3543 reply_len = hostapd_ctrl_iface_sta_first(hapd, reply, 3544 reply_size); 3545 } else if (os_strncmp(buf, "STA ", 4) == 0) { 3546 reply_len = hostapd_ctrl_iface_sta(hapd, buf + 4, reply, 3547 reply_size); 3548 } else if (os_strncmp(buf, "STA-NEXT ", 9) == 0) { 3549 reply_len = hostapd_ctrl_iface_sta_next(hapd, buf + 9, reply, 3550 reply_size); 3551 } else if (os_strcmp(buf, "ATTACH") == 0) { 3552 if (hostapd_ctrl_iface_attach(hapd, from, fromlen, NULL)) 3553 reply_len = -1; 3554 } else if (os_strncmp(buf, "ATTACH ", 7) == 0) { 3555 if (hostapd_ctrl_iface_attach(hapd, from, fromlen, buf + 7)) 3556 reply_len = -1; 3557 } else if (os_strcmp(buf, "DETACH") == 0) { 3558 if (hostapd_ctrl_iface_detach(hapd, from, fromlen)) 3559 reply_len = -1; 3560 } else if (os_strncmp(buf, "LEVEL ", 6) == 0) { 3561 if (hostapd_ctrl_iface_level(hapd, from, fromlen, 3562 buf + 6)) 3563 reply_len = -1; 3564 } else if (os_strncmp(buf, "NEW_STA ", 8) == 0) { 3565 if (hostapd_ctrl_iface_new_sta(hapd, buf + 8)) 3566 reply_len = -1; 3567 } else if (os_strncmp(buf, "DEAUTHENTICATE ", 15) == 0) { 3568 if (hostapd_ctrl_iface_deauthenticate(hapd, buf + 15)) 3569 reply_len = -1; 3570 } else if (os_strncmp(buf, "DISASSOCIATE ", 13) == 0) { 3571 if (hostapd_ctrl_iface_disassociate(hapd, buf + 13)) 3572 reply_len = -1; 3573 #ifdef CONFIG_TAXONOMY 3574 } else if (os_strncmp(buf, "SIGNATURE ", 10) == 0) { 3575 reply_len = hostapd_ctrl_iface_signature(hapd, buf + 10, 3576 reply, reply_size); 3577 #endif /* CONFIG_TAXONOMY */ 3578 } else if (os_strncmp(buf, "POLL_STA ", 9) == 0) { 3579 if (hostapd_ctrl_iface_poll_sta(hapd, buf + 9)) 3580 reply_len = -1; 3581 } else if (os_strcmp(buf, "STOP_AP") == 0) { 3582 if (hostapd_ctrl_iface_stop_ap(hapd)) 3583 reply_len = -1; 3584 #ifdef NEED_AP_MLME 3585 } else if (os_strncmp(buf, "SA_QUERY ", 9) == 0) { 3586 if (hostapd_ctrl_iface_sa_query(hapd, buf + 9)) 3587 reply_len = -1; 3588 #endif /* NEED_AP_MLME */ 3589 #ifdef CONFIG_WPS 3590 } else if (os_strncmp(buf, "WPS_PIN ", 8) == 0) { 3591 if (hostapd_ctrl_iface_wps_pin(hapd, buf + 8)) 3592 reply_len = -1; 3593 } else if (os_strncmp(buf, "WPS_CHECK_PIN ", 14) == 0) { 3594 reply_len = hostapd_ctrl_iface_wps_check_pin( 3595 hapd, buf + 14, reply, reply_size); 3596 } else if (os_strcmp(buf, "WPS_PBC") == 0) { 3597 if (hostapd_wps_button_pushed(hapd, NULL)) 3598 reply_len = -1; 3599 } else if (os_strcmp(buf, "WPS_CANCEL") == 0) { 3600 if (hostapd_wps_cancel(hapd)) 3601 reply_len = -1; 3602 } else if (os_strncmp(buf, "WPS_AP_PIN ", 11) == 0) { 3603 reply_len = hostapd_ctrl_iface_wps_ap_pin(hapd, buf + 11, 3604 reply, reply_size); 3605 } else if (os_strncmp(buf, "WPS_CONFIG ", 11) == 0) { 3606 if (hostapd_ctrl_iface_wps_config(hapd, buf + 11) < 0) 3607 reply_len = -1; 3608 } else if (os_strncmp(buf, "WPS_GET_STATUS", 13) == 0) { 3609 reply_len = hostapd_ctrl_iface_wps_get_status(hapd, reply, 3610 reply_size); 3611 #ifdef CONFIG_WPS_NFC 3612 } else if (os_strncmp(buf, "WPS_NFC_TAG_READ ", 17) == 0) { 3613 if (hostapd_ctrl_iface_wps_nfc_tag_read(hapd, buf + 17)) 3614 reply_len = -1; 3615 } else if (os_strncmp(buf, "WPS_NFC_CONFIG_TOKEN ", 21) == 0) { 3616 reply_len = hostapd_ctrl_iface_wps_nfc_config_token( 3617 hapd, buf + 21, reply, reply_size); 3618 } else if (os_strncmp(buf, "WPS_NFC_TOKEN ", 14) == 0) { 3619 reply_len = hostapd_ctrl_iface_wps_nfc_token( 3620 hapd, buf + 14, reply, reply_size); 3621 } else if (os_strncmp(buf, "NFC_GET_HANDOVER_SEL ", 21) == 0) { 3622 reply_len = hostapd_ctrl_iface_nfc_get_handover_sel( 3623 hapd, buf + 21, reply, reply_size); 3624 } else if (os_strncmp(buf, "NFC_REPORT_HANDOVER ", 20) == 0) { 3625 if (hostapd_ctrl_iface_nfc_report_handover(hapd, buf + 20)) 3626 reply_len = -1; 3627 #endif /* CONFIG_WPS_NFC */ 3628 #endif /* CONFIG_WPS */ 3629 #ifdef CONFIG_INTERWORKING 3630 } else if (os_strncmp(buf, "SET_QOS_MAP_SET ", 16) == 0) { 3631 if (hostapd_ctrl_iface_set_qos_map_set(hapd, buf + 16)) 3632 reply_len = -1; 3633 } else if (os_strncmp(buf, "SEND_QOS_MAP_CONF ", 18) == 0) { 3634 if (hostapd_ctrl_iface_send_qos_map_conf(hapd, buf + 18)) 3635 reply_len = -1; 3636 #endif /* CONFIG_INTERWORKING */ 3637 #ifdef CONFIG_HS20 3638 } else if (os_strncmp(buf, "HS20_WNM_NOTIF ", 15) == 0) { 3639 if (hostapd_ctrl_iface_hs20_wnm_notif(hapd, buf + 15)) 3640 reply_len = -1; 3641 } else if (os_strncmp(buf, "HS20_DEAUTH_REQ ", 16) == 0) { 3642 if (hostapd_ctrl_iface_hs20_deauth_req(hapd, buf + 16)) 3643 reply_len = -1; 3644 #endif /* CONFIG_HS20 */ 3645 #ifdef CONFIG_WNM_AP 3646 } else if (os_strncmp(buf, "DISASSOC_IMMINENT ", 18) == 0) { 3647 if (hostapd_ctrl_iface_disassoc_imminent(hapd, buf + 18)) 3648 reply_len = -1; 3649 } else if (os_strncmp(buf, "ESS_DISASSOC ", 13) == 0) { 3650 if (hostapd_ctrl_iface_ess_disassoc(hapd, buf + 13)) 3651 reply_len = -1; 3652 } else if (os_strncmp(buf, "BSS_TM_REQ ", 11) == 0) { 3653 if (hostapd_ctrl_iface_bss_tm_req(hapd, buf + 11)) 3654 reply_len = -1; 3655 } else if (os_strncmp(buf, "COLOC_INTF_REQ ", 15) == 0) { 3656 if (hostapd_ctrl_iface_coloc_intf_req(hapd, buf + 15)) 3657 reply_len = -1; 3658 #endif /* CONFIG_WNM_AP */ 3659 } else if (os_strcmp(buf, "GET_CONFIG") == 0) { 3660 reply_len = hostapd_ctrl_iface_get_config(hapd, reply, 3661 reply_size); 3662 } else if (os_strncmp(buf, "SET ", 4) == 0) { 3663 if (hostapd_ctrl_iface_set(hapd, buf + 4)) 3664 reply_len = -1; 3665 } else if (os_strncmp(buf, "GET ", 4) == 0) { 3666 reply_len = hostapd_ctrl_iface_get(hapd, buf + 4, reply, 3667 reply_size); 3668 } else if (os_strncmp(buf, "ENABLE", 6) == 0) { 3669 if (hostapd_ctrl_iface_enable(hapd->iface)) 3670 reply_len = -1; 3671 } else if (os_strcmp(buf, "RELOAD_WPA_PSK") == 0) { 3672 if (hostapd_ctrl_iface_reload_wpa_psk(hapd)) 3673 reply_len = -1; 3674 } else if (os_strncmp(buf, "RELOAD", 6) == 0) { 3675 if (hostapd_ctrl_iface_reload(hapd->iface)) 3676 reply_len = -1; 3677 } else if (os_strncmp(buf, "DISABLE", 7) == 0) { 3678 if (hostapd_ctrl_iface_disable(hapd->iface)) 3679 reply_len = -1; 3680 } else if (os_strcmp(buf, "UPDATE_BEACON") == 0) { 3681 if (ieee802_11_set_beacon(hapd)) 3682 reply_len = -1; 3683 #ifdef CONFIG_TESTING_OPTIONS 3684 } else if (os_strncmp(buf, "RADAR ", 6) == 0) { 3685 if (hostapd_ctrl_iface_radar(hapd, buf + 6)) 3686 reply_len = -1; 3687 } else if (os_strncmp(buf, "MGMT_TX ", 8) == 0) { 3688 if (hostapd_ctrl_iface_mgmt_tx(hapd, buf + 8)) 3689 reply_len = -1; 3690 } else if (os_strncmp(buf, "MGMT_TX_STATUS_PROCESS ", 23) == 0) { 3691 if (hostapd_ctrl_iface_mgmt_tx_status_process(hapd, 3692 buf + 23) < 0) 3693 reply_len = -1; 3694 } else if (os_strncmp(buf, "MGMT_RX_PROCESS ", 16) == 0) { 3695 if (hostapd_ctrl_iface_mgmt_rx_process(hapd, buf + 16) < 0) 3696 reply_len = -1; 3697 } else if (os_strncmp(buf, "EAPOL_RX ", 9) == 0) { 3698 if (hostapd_ctrl_iface_eapol_rx(hapd, buf + 9) < 0) 3699 reply_len = -1; 3700 } else if (os_strncmp(buf, "EAPOL_TX ", 9) == 0) { 3701 if (hostapd_ctrl_iface_eapol_tx(hapd, buf + 9) < 0) 3702 reply_len = -1; 3703 } else if (os_strncmp(buf, "DATA_TEST_CONFIG ", 17) == 0) { 3704 if (hostapd_ctrl_iface_data_test_config(hapd, buf + 17) < 0) 3705 reply_len = -1; 3706 } else if (os_strncmp(buf, "DATA_TEST_TX ", 13) == 0) { 3707 if (hostapd_ctrl_iface_data_test_tx(hapd, buf + 13) < 0) 3708 reply_len = -1; 3709 } else if (os_strncmp(buf, "DATA_TEST_FRAME ", 16) == 0) { 3710 if (hostapd_ctrl_iface_data_test_frame(hapd, buf + 16) < 0) 3711 reply_len = -1; 3712 } else if (os_strncmp(buf, "TEST_ALLOC_FAIL ", 16) == 0) { 3713 if (hostapd_ctrl_test_alloc_fail(hapd, buf + 16) < 0) 3714 reply_len = -1; 3715 } else if (os_strcmp(buf, "GET_ALLOC_FAIL") == 0) { 3716 reply_len = hostapd_ctrl_get_alloc_fail(hapd, reply, 3717 reply_size); 3718 } else if (os_strncmp(buf, "TEST_FAIL ", 10) == 0) { 3719 if (hostapd_ctrl_test_fail(hapd, buf + 10) < 0) 3720 reply_len = -1; 3721 } else if (os_strcmp(buf, "GET_FAIL") == 0) { 3722 reply_len = hostapd_ctrl_get_fail(hapd, reply, reply_size); 3723 } else if (os_strncmp(buf, "RESET_PN ", 9) == 0) { 3724 if (hostapd_ctrl_reset_pn(hapd, buf + 9) < 0) 3725 reply_len = -1; 3726 } else if (os_strncmp(buf, "SET_KEY ", 8) == 0) { 3727 if (hostapd_ctrl_set_key(hapd, buf + 8) < 0) 3728 reply_len = -1; 3729 } else if (os_strncmp(buf, "RESEND_M1 ", 10) == 0) { 3730 if (hostapd_ctrl_resend_m1(hapd, buf + 10) < 0) 3731 reply_len = -1; 3732 } else if (os_strncmp(buf, "RESEND_M3 ", 10) == 0) { 3733 if (hostapd_ctrl_resend_m3(hapd, buf + 10) < 0) 3734 reply_len = -1; 3735 } else if (os_strncmp(buf, "RESEND_GROUP_M1 ", 16) == 0) { 3736 if (hostapd_ctrl_resend_group_m1(hapd, buf + 16) < 0) 3737 reply_len = -1; 3738 } else if (os_strncmp(buf, "REKEY_PTK ", 10) == 0) { 3739 if (hostapd_ctrl_rekey_ptk(hapd, buf + 10) < 0) 3740 reply_len = -1; 3741 } else if (os_strcmp(buf, "REKEY_GTK") == 0) { 3742 if (wpa_auth_rekey_gtk(hapd->wpa_auth) < 0) 3743 reply_len = -1; 3744 } else if (os_strncmp(buf, "GET_PMK ", 8) == 0) { 3745 reply_len = hostapd_ctrl_get_pmk(hapd, buf + 8, reply, 3746 reply_size); 3747 } else if (os_strncmp(buf, "REGISTER_FRAME ", 15) == 0) { 3748 if (hostapd_ctrl_register_frame(hapd, buf + 16) < 0) 3749 reply_len = -1; 3750 #endif /* CONFIG_TESTING_OPTIONS */ 3751 } else if (os_strncmp(buf, "CHAN_SWITCH ", 12) == 0) { 3752 if (hostapd_ctrl_iface_chan_switch(hapd->iface, buf + 12)) 3753 reply_len = -1; 3754 } else if (os_strncmp(buf, "VENDOR ", 7) == 0) { 3755 reply_len = hostapd_ctrl_iface_vendor(hapd, buf + 7, reply, 3756 reply_size); 3757 } else if (os_strcmp(buf, "ERP_FLUSH") == 0) { 3758 ieee802_1x_erp_flush(hapd); 3759 #ifdef RADIUS_SERVER 3760 radius_server_erp_flush(hapd->radius_srv); 3761 #endif /* RADIUS_SERVER */ 3762 } else if (os_strncmp(buf, "EAPOL_REAUTH ", 13) == 0) { 3763 if (hostapd_ctrl_iface_eapol_reauth(hapd, buf + 13)) 3764 reply_len = -1; 3765 } else if (os_strncmp(buf, "EAPOL_SET ", 10) == 0) { 3766 if (hostapd_ctrl_iface_eapol_set(hapd, buf + 10)) 3767 reply_len = -1; 3768 } else if (os_strncmp(buf, "LOG_LEVEL", 9) == 0) { 3769 reply_len = hostapd_ctrl_iface_log_level( 3770 hapd, buf + 9, reply, reply_size); 3771 #ifdef NEED_AP_MLME 3772 } else if (os_strcmp(buf, "TRACK_STA_LIST") == 0) { 3773 reply_len = hostapd_ctrl_iface_track_sta_list( 3774 hapd, reply, reply_size); 3775 #endif /* NEED_AP_MLME */ 3776 } else if (os_strcmp(buf, "PMKSA") == 0) { 3777 reply_len = hostapd_ctrl_iface_pmksa_list(hapd, reply, 3778 reply_size); 3779 } else if (os_strcmp(buf, "PMKSA_FLUSH") == 0) { 3780 hostapd_ctrl_iface_pmksa_flush(hapd); 3781 } else if (os_strncmp(buf, "PMKSA_ADD ", 10) == 0) { 3782 if (hostapd_ctrl_iface_pmksa_add(hapd, buf + 10) < 0) 3783 reply_len = -1; 3784 } else if (os_strncmp(buf, "SET_NEIGHBOR ", 13) == 0) { 3785 if (hostapd_ctrl_iface_set_neighbor(hapd, buf + 13)) 3786 reply_len = -1; 3787 } else if (os_strcmp(buf, "SHOW_NEIGHBOR") == 0) { 3788 reply_len = hostapd_ctrl_iface_show_neighbor(hapd, reply, 3789 reply_size); 3790 } else if (os_strncmp(buf, "REMOVE_NEIGHBOR ", 16) == 0) { 3791 if (hostapd_ctrl_iface_remove_neighbor(hapd, buf + 16)) 3792 reply_len = -1; 3793 } else if (os_strncmp(buf, "REQ_LCI ", 8) == 0) { 3794 if (hostapd_ctrl_iface_req_lci(hapd, buf + 8)) 3795 reply_len = -1; 3796 } else if (os_strncmp(buf, "REQ_RANGE ", 10) == 0) { 3797 if (hostapd_ctrl_iface_req_range(hapd, buf + 10)) 3798 reply_len = -1; 3799 } else if (os_strncmp(buf, "REQ_BEACON ", 11) == 0) { 3800 reply_len = hostapd_ctrl_iface_req_beacon(hapd, buf + 11, 3801 reply, reply_size); 3802 } else if (os_strcmp(buf, "DRIVER_FLAGS") == 0) { 3803 reply_len = hostapd_ctrl_driver_flags(hapd->iface, reply, 3804 reply_size); 3805 } else if (os_strcmp(buf, "DRIVER_FLAGS2") == 0) { 3806 reply_len = hostapd_ctrl_driver_flags2(hapd->iface, reply, 3807 reply_size); 3808 } else if (os_strcmp(buf, "TERMINATE") == 0) { 3809 eloop_terminate(); 3810 } else if (os_strncmp(buf, "ACCEPT_ACL ", 11) == 0) { 3811 if (os_strncmp(buf + 11, "ADD_MAC ", 8) == 0) { 3812 if (hostapd_ctrl_iface_acl_add_mac( 3813 &hapd->conf->accept_mac, 3814 &hapd->conf->num_accept_mac, buf + 19)) 3815 reply_len = -1; 3816 } else if (os_strncmp((buf + 11), "DEL_MAC ", 8) == 0) { 3817 if (!hostapd_ctrl_iface_acl_del_mac( 3818 &hapd->conf->accept_mac, 3819 &hapd->conf->num_accept_mac, buf + 19)) 3820 hostapd_disassoc_accept_mac(hapd); 3821 else 3822 reply_len = -1; 3823 } else if (os_strcmp(buf + 11, "SHOW") == 0) { 3824 reply_len = hostapd_ctrl_iface_acl_show_mac( 3825 hapd->conf->accept_mac, 3826 hapd->conf->num_accept_mac, reply, reply_size); 3827 } else if (os_strcmp(buf + 11, "CLEAR") == 0) { 3828 hostapd_ctrl_iface_acl_clear_list( 3829 &hapd->conf->accept_mac, 3830 &hapd->conf->num_accept_mac); 3831 hostapd_disassoc_accept_mac(hapd); 3832 } 3833 } else if (os_strncmp(buf, "DENY_ACL ", 9) == 0) { 3834 if (os_strncmp(buf + 9, "ADD_MAC ", 8) == 0) { 3835 if (!hostapd_ctrl_iface_acl_add_mac( 3836 &hapd->conf->deny_mac, 3837 &hapd->conf->num_deny_mac, buf + 17)) 3838 hostapd_disassoc_deny_mac(hapd); 3839 else 3840 reply_len = -1; 3841 } else if (os_strncmp(buf + 9, "DEL_MAC ", 8) == 0) { 3842 if (hostapd_ctrl_iface_acl_del_mac( 3843 &hapd->conf->deny_mac, 3844 &hapd->conf->num_deny_mac, buf + 17)) 3845 reply_len = -1; 3846 } else if (os_strcmp(buf + 9, "SHOW") == 0) { 3847 reply_len = hostapd_ctrl_iface_acl_show_mac( 3848 hapd->conf->deny_mac, 3849 hapd->conf->num_deny_mac, reply, reply_size); 3850 } else if (os_strcmp(buf + 9, "CLEAR") == 0) { 3851 hostapd_ctrl_iface_acl_clear_list( 3852 &hapd->conf->deny_mac, 3853 &hapd->conf->num_deny_mac); 3854 } 3855 #ifdef CONFIG_DPP 3856 } else if (os_strncmp(buf, "DPP_QR_CODE ", 12) == 0) { 3857 res = hostapd_dpp_qr_code(hapd, buf + 12); 3858 if (res < 0) { 3859 reply_len = -1; 3860 } else { 3861 reply_len = os_snprintf(reply, reply_size, "%d", res); 3862 if (os_snprintf_error(reply_size, reply_len)) 3863 reply_len = -1; 3864 } 3865 } else if (os_strncmp(buf, "DPP_NFC_URI ", 12) == 0) { 3866 res = hostapd_dpp_nfc_uri(hapd, buf + 12); 3867 if (res < 0) { 3868 reply_len = -1; 3869 } else { 3870 reply_len = os_snprintf(reply, reply_size, "%d", res); 3871 if (os_snprintf_error(reply_size, reply_len)) 3872 reply_len = -1; 3873 } 3874 } else if (os_strncmp(buf, "DPP_NFC_HANDOVER_REQ ", 21) == 0) { 3875 res = hostapd_dpp_nfc_handover_req(hapd, buf + 20); 3876 if (res < 0) { 3877 reply_len = -1; 3878 } else { 3879 reply_len = os_snprintf(reply, reply_size, "%d", res); 3880 if (os_snprintf_error(reply_size, reply_len)) 3881 reply_len = -1; 3882 } 3883 } else if (os_strncmp(buf, "DPP_NFC_HANDOVER_SEL ", 21) == 0) { 3884 res = hostapd_dpp_nfc_handover_sel(hapd, buf + 20); 3885 if (res < 0) { 3886 reply_len = -1; 3887 } else { 3888 reply_len = os_snprintf(reply, reply_size, "%d", res); 3889 if (os_snprintf_error(reply_size, reply_len)) 3890 reply_len = -1; 3891 } 3892 } else if (os_strncmp(buf, "DPP_BOOTSTRAP_GEN ", 18) == 0) { 3893 res = dpp_bootstrap_gen(hapd->iface->interfaces->dpp, buf + 18); 3894 if (res < 0) { 3895 reply_len = -1; 3896 } else { 3897 reply_len = os_snprintf(reply, reply_size, "%d", res); 3898 if (os_snprintf_error(reply_size, reply_len)) 3899 reply_len = -1; 3900 } 3901 } else if (os_strncmp(buf, "DPP_BOOTSTRAP_REMOVE ", 21) == 0) { 3902 if (dpp_bootstrap_remove(hapd->iface->interfaces->dpp, 3903 buf + 21) < 0) 3904 reply_len = -1; 3905 } else if (os_strncmp(buf, "DPP_BOOTSTRAP_GET_URI ", 22) == 0) { 3906 const char *uri; 3907 3908 uri = dpp_bootstrap_get_uri(hapd->iface->interfaces->dpp, 3909 atoi(buf + 22)); 3910 if (!uri) { 3911 reply_len = -1; 3912 } else { 3913 reply_len = os_snprintf(reply, reply_size, "%s", uri); 3914 if (os_snprintf_error(reply_size, reply_len)) 3915 reply_len = -1; 3916 } 3917 } else if (os_strncmp(buf, "DPP_BOOTSTRAP_INFO ", 19) == 0) { 3918 reply_len = dpp_bootstrap_info(hapd->iface->interfaces->dpp, 3919 atoi(buf + 19), 3920 reply, reply_size); 3921 } else if (os_strncmp(buf, "DPP_BOOTSTRAP_SET ", 18) == 0) { 3922 if (dpp_bootstrap_set(hapd->iface->interfaces->dpp, 3923 atoi(buf + 18), 3924 os_strchr(buf + 18, ' ')) < 0) 3925 reply_len = -1; 3926 } else if (os_strncmp(buf, "DPP_AUTH_INIT ", 14) == 0) { 3927 if (hostapd_dpp_auth_init(hapd, buf + 13) < 0) 3928 reply_len = -1; 3929 } else if (os_strncmp(buf, "DPP_LISTEN ", 11) == 0) { 3930 if (hostapd_dpp_listen(hapd, buf + 11) < 0) 3931 reply_len = -1; 3932 } else if (os_strcmp(buf, "DPP_STOP_LISTEN") == 0) { 3933 hostapd_dpp_stop(hapd); 3934 hostapd_dpp_listen_stop(hapd); 3935 } else if (os_strncmp(buf, "DPP_CONFIGURATOR_ADD", 20) == 0) { 3936 res = dpp_configurator_add(hapd->iface->interfaces->dpp, 3937 buf + 20); 3938 if (res < 0) { 3939 reply_len = -1; 3940 } else { 3941 reply_len = os_snprintf(reply, reply_size, "%d", res); 3942 if (os_snprintf_error(reply_size, reply_len)) 3943 reply_len = -1; 3944 } 3945 } else if (os_strncmp(buf, "DPP_CONFIGURATOR_REMOVE ", 24) == 0) { 3946 if (dpp_configurator_remove(hapd->iface->interfaces->dpp, 3947 buf + 24) < 0) 3948 reply_len = -1; 3949 } else if (os_strncmp(buf, "DPP_CONFIGURATOR_SIGN ", 22) == 0) { 3950 if (hostapd_dpp_configurator_sign(hapd, buf + 21) < 0) 3951 reply_len = -1; 3952 } else if (os_strncmp(buf, "DPP_CONFIGURATOR_GET_KEY ", 25) == 0) { 3953 reply_len = dpp_configurator_get_key_id( 3954 hapd->iface->interfaces->dpp, 3955 atoi(buf + 25), 3956 reply, reply_size); 3957 } else if (os_strncmp(buf, "DPP_PKEX_ADD ", 13) == 0) { 3958 res = hostapd_dpp_pkex_add(hapd, buf + 12); 3959 if (res < 0) { 3960 reply_len = -1; 3961 } else { 3962 reply_len = os_snprintf(reply, reply_size, "%d", res); 3963 if (os_snprintf_error(reply_size, reply_len)) 3964 reply_len = -1; 3965 } 3966 } else if (os_strncmp(buf, "DPP_PKEX_REMOVE ", 16) == 0) { 3967 if (hostapd_dpp_pkex_remove(hapd, buf + 16) < 0) 3968 reply_len = -1; 3969 #ifdef CONFIG_DPP2 3970 } else if (os_strncmp(buf, "DPP_CONTROLLER_START ", 21) == 0) { 3971 if (hostapd_dpp_controller_start(hapd, buf + 20) < 0) 3972 reply_len = -1; 3973 } else if (os_strcmp(buf, "DPP_CONTROLLER_START") == 0) { 3974 if (hostapd_dpp_controller_start(hapd, NULL) < 0) 3975 reply_len = -1; 3976 } else if (os_strcmp(buf, "DPP_CONTROLLER_STOP") == 0) { 3977 dpp_controller_stop(hapd->iface->interfaces->dpp); 3978 } else if (os_strncmp(buf, "DPP_CHIRP ", 10) == 0) { 3979 if (hostapd_dpp_chirp(hapd, buf + 9) < 0) 3980 reply_len = -1; 3981 } else if (os_strcmp(buf, "DPP_STOP_CHIRP") == 0) { 3982 hostapd_dpp_chirp_stop(hapd); 3983 #endif /* CONFIG_DPP2 */ 3984 #endif /* CONFIG_DPP */ 3985 #ifdef RADIUS_SERVER 3986 } else if (os_strncmp(buf, "DAC_REQUEST ", 12) == 0) { 3987 if (radius_server_dac_request(hapd->radius_srv, buf + 12) < 0) 3988 reply_len = -1; 3989 #endif /* RADIUS_SERVER */ 3990 } else if (os_strncmp(buf, "GET_CAPABILITY ", 15) == 0) { 3991 reply_len = hostapd_ctrl_iface_get_capability( 3992 hapd, buf + 15, reply, reply_size); 3993 #ifdef CONFIG_PASN 3994 } else if (os_strcmp(buf, "PTKSA_CACHE_LIST") == 0) { 3995 reply_len = ptksa_cache_list(hapd->ptksa, reply, reply_size); 3996 #endif /* CONFIG_PASN */ 3997 #ifdef ANDROID 3998 } else if (os_strncmp(buf, "DRIVER ", 7) == 0) { 3999 reply_len = hostapd_ctrl_iface_driver_cmd(hapd, buf + 7, reply, 4000 reply_size); 4001 #endif /* ANDROID */ 4002 } else { 4003 os_memcpy(reply, "UNKNOWN COMMAND\n", 16); 4004 reply_len = 16; 4005 } 4006 4007 if (reply_len < 0) { 4008 os_memcpy(reply, "FAIL\n", 5); 4009 reply_len = 5; 4010 } 4011 4012 return reply_len; 4013 } 4014 4015 4016 static void hostapd_ctrl_iface_receive(int sock, void *eloop_ctx, 4017 void *sock_ctx) 4018 { 4019 struct hostapd_data *hapd = eloop_ctx; 4020 char buf[4096]; 4021 int res; 4022 struct sockaddr_storage from; 4023 socklen_t fromlen = sizeof(from); 4024 char *reply, *pos = buf; 4025 const int reply_size = 4096; 4026 int reply_len; 4027 int level = MSG_DEBUG; 4028 #ifdef CONFIG_CTRL_IFACE_UDP 4029 unsigned char lcookie[CTRL_IFACE_COOKIE_LEN]; 4030 #endif /* CONFIG_CTRL_IFACE_UDP */ 4031 4032 res = recvfrom(sock, buf, sizeof(buf) - 1, 0, 4033 (struct sockaddr *) &from, &fromlen); 4034 if (res < 0) { 4035 wpa_printf(MSG_ERROR, "recvfrom(ctrl_iface): %s", 4036 strerror(errno)); 4037 return; 4038 } 4039 buf[res] = '\0'; 4040 4041 reply = os_malloc(reply_size); 4042 if (reply == NULL) { 4043 if (sendto(sock, "FAIL\n", 5, 0, (struct sockaddr *) &from, 4044 fromlen) < 0) { 4045 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s", 4046 strerror(errno)); 4047 } 4048 return; 4049 } 4050 4051 #ifdef CONFIG_CTRL_IFACE_UDP 4052 if (os_strcmp(buf, "GET_COOKIE") == 0) { 4053 os_memcpy(reply, "COOKIE=", 7); 4054 wpa_snprintf_hex(reply + 7, 2 * CTRL_IFACE_COOKIE_LEN + 1, 4055 hapd->ctrl_iface_cookie, 4056 CTRL_IFACE_COOKIE_LEN); 4057 reply_len = 7 + 2 * CTRL_IFACE_COOKIE_LEN; 4058 goto done; 4059 } 4060 4061 if (os_strncmp(buf, "COOKIE=", 7) != 0 || 4062 hexstr2bin(buf + 7, lcookie, CTRL_IFACE_COOKIE_LEN) < 0) { 4063 wpa_printf(MSG_DEBUG, 4064 "CTRL: No cookie in the request - drop request"); 4065 os_free(reply); 4066 return; 4067 } 4068 4069 if (os_memcmp(hapd->ctrl_iface_cookie, lcookie, 4070 CTRL_IFACE_COOKIE_LEN) != 0) { 4071 wpa_printf(MSG_DEBUG, 4072 "CTRL: Invalid cookie in the request - drop request"); 4073 os_free(reply); 4074 return; 4075 } 4076 4077 pos = buf + 7 + 2 * CTRL_IFACE_COOKIE_LEN; 4078 while (*pos == ' ') 4079 pos++; 4080 #endif /* CONFIG_CTRL_IFACE_UDP */ 4081 4082 if (os_strcmp(pos, "PING") == 0) 4083 level = MSG_EXCESSIVE; 4084 wpa_hexdump_ascii(level, "RX ctrl_iface", pos, res); 4085 4086 reply_len = hostapd_ctrl_iface_receive_process(hapd, pos, 4087 reply, reply_size, 4088 &from, fromlen); 4089 4090 #ifdef CONFIG_CTRL_IFACE_UDP 4091 done: 4092 #endif /* CONFIG_CTRL_IFACE_UDP */ 4093 if (sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from, 4094 fromlen) < 0) { 4095 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s", 4096 strerror(errno)); 4097 } 4098 os_free(reply); 4099 } 4100 4101 4102 #ifndef CONFIG_CTRL_IFACE_UDP 4103 static char * hostapd_ctrl_iface_path(struct hostapd_data *hapd) 4104 { 4105 char *buf; 4106 size_t len; 4107 4108 if (hapd->conf->ctrl_interface == NULL) 4109 return NULL; 4110 4111 len = os_strlen(hapd->conf->ctrl_interface) + 4112 os_strlen(hapd->conf->iface) + 2; 4113 buf = os_malloc(len); 4114 if (buf == NULL) 4115 return NULL; 4116 4117 os_snprintf(buf, len, "%s/%s", 4118 hapd->conf->ctrl_interface, hapd->conf->iface); 4119 buf[len - 1] = '\0'; 4120 return buf; 4121 } 4122 #endif /* CONFIG_CTRL_IFACE_UDP */ 4123 4124 4125 static void hostapd_ctrl_iface_msg_cb(void *ctx, int level, 4126 enum wpa_msg_type type, 4127 const char *txt, size_t len) 4128 { 4129 struct hostapd_data *hapd = ctx; 4130 if (hapd == NULL) 4131 return; 4132 hostapd_ctrl_iface_send(hapd, level, type, txt, len); 4133 } 4134 4135 4136 int hostapd_ctrl_iface_init(struct hostapd_data *hapd) 4137 { 4138 #ifdef CONFIG_CTRL_IFACE_UDP 4139 int port = HOSTAPD_CTRL_IFACE_PORT; 4140 char p[32] = { 0 }; 4141 char port_str[40], *tmp; 4142 char *pos; 4143 struct addrinfo hints = { 0 }, *res, *saveres; 4144 int n; 4145 4146 if (hapd->ctrl_sock > -1) { 4147 wpa_printf(MSG_DEBUG, "ctrl_iface already exists!"); 4148 return 0; 4149 } 4150 4151 if (hapd->conf->ctrl_interface == NULL) 4152 return 0; 4153 4154 pos = os_strstr(hapd->conf->ctrl_interface, "udp:"); 4155 if (pos) { 4156 pos += 4; 4157 port = atoi(pos); 4158 if (port <= 0) { 4159 wpa_printf(MSG_ERROR, "Invalid ctrl_iface UDP port"); 4160 goto fail; 4161 } 4162 } 4163 4164 dl_list_init(&hapd->ctrl_dst); 4165 hapd->ctrl_sock = -1; 4166 os_get_random(hapd->ctrl_iface_cookie, CTRL_IFACE_COOKIE_LEN); 4167 4168 #ifdef CONFIG_CTRL_IFACE_UDP_REMOTE 4169 hints.ai_flags = AI_PASSIVE; 4170 #endif /* CONFIG_CTRL_IFACE_UDP_REMOTE */ 4171 4172 #ifdef CONFIG_CTRL_IFACE_UDP_IPV6 4173 hints.ai_family = AF_INET6; 4174 #else /* CONFIG_CTRL_IFACE_UDP_IPV6 */ 4175 hints.ai_family = AF_INET; 4176 #endif /* CONFIG_CTRL_IFACE_UDP_IPV6 */ 4177 hints.ai_socktype = SOCK_DGRAM; 4178 4179 try_again: 4180 os_snprintf(p, sizeof(p), "%d", port); 4181 n = getaddrinfo(NULL, p, &hints, &res); 4182 if (n) { 4183 wpa_printf(MSG_ERROR, "getaddrinfo(): %s", gai_strerror(n)); 4184 goto fail; 4185 } 4186 4187 saveres = res; 4188 hapd->ctrl_sock = socket(res->ai_family, res->ai_socktype, 4189 res->ai_protocol); 4190 if (hapd->ctrl_sock < 0) { 4191 wpa_printf(MSG_ERROR, "socket(PF_INET): %s", strerror(errno)); 4192 goto fail; 4193 } 4194 4195 if (bind(hapd->ctrl_sock, res->ai_addr, res->ai_addrlen) < 0) { 4196 port--; 4197 if ((HOSTAPD_CTRL_IFACE_PORT - port) < 4198 HOSTAPD_CTRL_IFACE_PORT_LIMIT && !pos) 4199 goto try_again; 4200 wpa_printf(MSG_ERROR, "bind(AF_INET): %s", strerror(errno)); 4201 goto fail; 4202 } 4203 4204 freeaddrinfo(saveres); 4205 4206 os_snprintf(port_str, sizeof(port_str), "udp:%d", port); 4207 tmp = os_strdup(port_str); 4208 if (tmp) { 4209 os_free(hapd->conf->ctrl_interface); 4210 hapd->conf->ctrl_interface = tmp; 4211 } 4212 wpa_printf(MSG_DEBUG, "ctrl_iface_init UDP port: %d", port); 4213 4214 if (eloop_register_read_sock(hapd->ctrl_sock, 4215 hostapd_ctrl_iface_receive, hapd, NULL) < 4216 0) { 4217 hostapd_ctrl_iface_deinit(hapd); 4218 return -1; 4219 } 4220 4221 hapd->msg_ctx = hapd; 4222 wpa_msg_register_cb(hostapd_ctrl_iface_msg_cb); 4223 4224 return 0; 4225 4226 fail: 4227 if (hapd->ctrl_sock >= 0) 4228 close(hapd->ctrl_sock); 4229 return -1; 4230 #else /* CONFIG_CTRL_IFACE_UDP */ 4231 struct sockaddr_un addr; 4232 int s = -1; 4233 char *fname = NULL; 4234 4235 if (hapd->ctrl_sock > -1) { 4236 wpa_printf(MSG_DEBUG, "ctrl_iface already exists!"); 4237 return 0; 4238 } 4239 4240 dl_list_init(&hapd->ctrl_dst); 4241 4242 if (hapd->conf->ctrl_interface == NULL) 4243 return 0; 4244 4245 if (mkdir(hapd->conf->ctrl_interface, S_IRWXU | S_IRWXG) < 0) { 4246 if (errno == EEXIST) { 4247 wpa_printf(MSG_DEBUG, "Using existing control " 4248 "interface directory."); 4249 } else { 4250 wpa_printf(MSG_ERROR, "mkdir[ctrl_interface]: %s", 4251 strerror(errno)); 4252 goto fail; 4253 } 4254 } 4255 4256 if (hapd->conf->ctrl_interface_gid_set && 4257 lchown(hapd->conf->ctrl_interface, -1, 4258 hapd->conf->ctrl_interface_gid) < 0) { 4259 wpa_printf(MSG_ERROR, "lchown[ctrl_interface]: %s", 4260 strerror(errno)); 4261 return -1; 4262 } 4263 4264 if (!hapd->conf->ctrl_interface_gid_set && 4265 hapd->iface->interfaces->ctrl_iface_group && 4266 lchown(hapd->conf->ctrl_interface, -1, 4267 hapd->iface->interfaces->ctrl_iface_group) < 0) { 4268 wpa_printf(MSG_ERROR, "lchown[ctrl_interface]: %s", 4269 strerror(errno)); 4270 return -1; 4271 } 4272 4273 #ifdef ANDROID 4274 /* 4275 * Android is using umask 0077 which would leave the control interface 4276 * directory without group access. This breaks things since Wi-Fi 4277 * framework assumes that this directory can be accessed by other 4278 * applications in the wifi group. Fix this by adding group access even 4279 * if umask value would prevent this. 4280 */ 4281 if (chmod(hapd->conf->ctrl_interface, S_IRWXU | S_IRWXG) < 0) { 4282 wpa_printf(MSG_ERROR, "CTRL: Could not chmod directory: %s", 4283 strerror(errno)); 4284 /* Try to continue anyway */ 4285 } 4286 #endif /* ANDROID */ 4287 4288 if (os_strlen(hapd->conf->ctrl_interface) + 1 + 4289 os_strlen(hapd->conf->iface) >= sizeof(addr.sun_path)) 4290 goto fail; 4291 4292 s = socket(PF_UNIX, SOCK_DGRAM, 0); 4293 if (s < 0) { 4294 wpa_printf(MSG_ERROR, "socket(PF_UNIX): %s", strerror(errno)); 4295 goto fail; 4296 } 4297 4298 os_memset(&addr, 0, sizeof(addr)); 4299 #ifdef __FreeBSD__ 4300 addr.sun_len = sizeof(addr); 4301 #endif /* __FreeBSD__ */ 4302 addr.sun_family = AF_UNIX; 4303 fname = hostapd_ctrl_iface_path(hapd); 4304 if (fname == NULL) 4305 goto fail; 4306 os_strlcpy(addr.sun_path, fname, sizeof(addr.sun_path)); 4307 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) { 4308 wpa_printf(MSG_DEBUG, "ctrl_iface bind(PF_UNIX) failed: %s", 4309 strerror(errno)); 4310 if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) { 4311 wpa_printf(MSG_DEBUG, "ctrl_iface exists, but does not" 4312 " allow connections - assuming it was left" 4313 "over from forced program termination"); 4314 if (unlink(fname) < 0) { 4315 wpa_printf(MSG_ERROR, 4316 "Could not unlink existing ctrl_iface socket '%s': %s", 4317 fname, strerror(errno)); 4318 goto fail; 4319 } 4320 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 4321 0) { 4322 wpa_printf(MSG_ERROR, 4323 "hostapd-ctrl-iface: bind(PF_UNIX): %s", 4324 strerror(errno)); 4325 goto fail; 4326 } 4327 wpa_printf(MSG_DEBUG, "Successfully replaced leftover " 4328 "ctrl_iface socket '%s'", fname); 4329 } else { 4330 wpa_printf(MSG_INFO, "ctrl_iface exists and seems to " 4331 "be in use - cannot override it"); 4332 wpa_printf(MSG_INFO, "Delete '%s' manually if it is " 4333 "not used anymore", fname); 4334 os_free(fname); 4335 fname = NULL; 4336 goto fail; 4337 } 4338 } 4339 4340 if (hapd->conf->ctrl_interface_gid_set && 4341 lchown(fname, -1, hapd->conf->ctrl_interface_gid) < 0) { 4342 wpa_printf(MSG_ERROR, "lchown[ctrl_interface/ifname]: %s", 4343 strerror(errno)); 4344 goto fail; 4345 } 4346 4347 if (!hapd->conf->ctrl_interface_gid_set && 4348 hapd->iface->interfaces->ctrl_iface_group && 4349 lchown(fname, -1, hapd->iface->interfaces->ctrl_iface_group) < 0) { 4350 wpa_printf(MSG_ERROR, "lchown[ctrl_interface/ifname]: %s", 4351 strerror(errno)); 4352 goto fail; 4353 } 4354 4355 if (chmod(fname, S_IRWXU | S_IRWXG) < 0) { 4356 wpa_printf(MSG_ERROR, "chmod[ctrl_interface/ifname]: %s", 4357 strerror(errno)); 4358 goto fail; 4359 } 4360 os_free(fname); 4361 4362 hapd->ctrl_sock = s; 4363 if (eloop_register_read_sock(s, hostapd_ctrl_iface_receive, hapd, 4364 NULL) < 0) { 4365 hostapd_ctrl_iface_deinit(hapd); 4366 return -1; 4367 } 4368 hapd->msg_ctx = hapd; 4369 wpa_msg_register_cb(hostapd_ctrl_iface_msg_cb); 4370 4371 return 0; 4372 4373 fail: 4374 if (s >= 0) 4375 close(s); 4376 if (fname) { 4377 unlink(fname); 4378 os_free(fname); 4379 } 4380 return -1; 4381 #endif /* CONFIG_CTRL_IFACE_UDP */ 4382 } 4383 4384 4385 void hostapd_ctrl_iface_deinit(struct hostapd_data *hapd) 4386 { 4387 struct wpa_ctrl_dst *dst, *prev; 4388 4389 if (hapd->ctrl_sock > -1) { 4390 #ifndef CONFIG_CTRL_IFACE_UDP 4391 char *fname; 4392 #endif /* !CONFIG_CTRL_IFACE_UDP */ 4393 4394 eloop_unregister_read_sock(hapd->ctrl_sock); 4395 close(hapd->ctrl_sock); 4396 hapd->ctrl_sock = -1; 4397 #ifndef CONFIG_CTRL_IFACE_UDP 4398 fname = hostapd_ctrl_iface_path(hapd); 4399 if (fname) 4400 unlink(fname); 4401 os_free(fname); 4402 4403 if (hapd->conf->ctrl_interface && 4404 rmdir(hapd->conf->ctrl_interface) < 0) { 4405 if (errno == ENOTEMPTY) { 4406 wpa_printf(MSG_DEBUG, "Control interface " 4407 "directory not empty - leaving it " 4408 "behind"); 4409 } else { 4410 wpa_printf(MSG_ERROR, 4411 "rmdir[ctrl_interface=%s]: %s", 4412 hapd->conf->ctrl_interface, 4413 strerror(errno)); 4414 } 4415 } 4416 #endif /* !CONFIG_CTRL_IFACE_UDP */ 4417 } 4418 4419 dl_list_for_each_safe(dst, prev, &hapd->ctrl_dst, struct wpa_ctrl_dst, 4420 list) 4421 os_free(dst); 4422 4423 #ifdef CONFIG_TESTING_OPTIONS 4424 l2_packet_deinit(hapd->l2_test); 4425 hapd->l2_test = NULL; 4426 #endif /* CONFIG_TESTING_OPTIONS */ 4427 } 4428 4429 4430 static int hostapd_ctrl_iface_add(struct hapd_interfaces *interfaces, 4431 char *buf) 4432 { 4433 if (hostapd_add_iface(interfaces, buf) < 0) { 4434 wpa_printf(MSG_ERROR, "Adding interface %s failed", buf); 4435 return -1; 4436 } 4437 return 0; 4438 } 4439 4440 4441 static int hostapd_ctrl_iface_remove(struct hapd_interfaces *interfaces, 4442 char *buf) 4443 { 4444 if (hostapd_remove_iface(interfaces, buf) < 0) { 4445 wpa_printf(MSG_ERROR, "Removing interface %s failed", buf); 4446 return -1; 4447 } 4448 return 0; 4449 } 4450 4451 4452 static int hostapd_global_ctrl_iface_attach(struct hapd_interfaces *interfaces, 4453 struct sockaddr_storage *from, 4454 socklen_t fromlen, char *input) 4455 { 4456 return ctrl_iface_attach(&interfaces->global_ctrl_dst, from, fromlen, 4457 input); 4458 } 4459 4460 4461 static int hostapd_global_ctrl_iface_detach(struct hapd_interfaces *interfaces, 4462 struct sockaddr_storage *from, 4463 socklen_t fromlen) 4464 { 4465 return ctrl_iface_detach(&interfaces->global_ctrl_dst, from, fromlen); 4466 } 4467 4468 4469 static void hostapd_ctrl_iface_flush(struct hapd_interfaces *interfaces) 4470 { 4471 #ifdef CONFIG_WPS_TESTING 4472 wps_version_number = 0x20; 4473 wps_testing_dummy_cred = 0; 4474 wps_corrupt_pkhash = 0; 4475 #endif /* CONFIG_WPS_TESTING */ 4476 4477 #ifdef CONFIG_TESTING_OPTIONS 4478 #ifdef CONFIG_DPP 4479 dpp_test = DPP_TEST_DISABLED; 4480 #ifdef CONFIG_DPP2 4481 dpp_version_override = 2; 4482 #else /* CONFIG_DPP2 */ 4483 dpp_version_override = 1; 4484 #endif /* CONFIG_DPP2 */ 4485 #endif /* CONFIG_DPP */ 4486 #endif /* CONFIG_TESTING_OPTIONS */ 4487 4488 #ifdef CONFIG_DPP 4489 dpp_global_clear(interfaces->dpp); 4490 #endif /* CONFIG_DPP */ 4491 } 4492 4493 4494 #ifdef CONFIG_FST 4495 4496 static int 4497 hostapd_global_ctrl_iface_fst_attach(struct hapd_interfaces *interfaces, 4498 const char *cmd) 4499 { 4500 char ifname[IFNAMSIZ + 1]; 4501 struct fst_iface_cfg cfg; 4502 struct hostapd_data *hapd; 4503 struct fst_wpa_obj iface_obj; 4504 4505 if (!fst_parse_attach_command(cmd, ifname, sizeof(ifname), &cfg)) { 4506 hapd = hostapd_get_iface(interfaces, ifname); 4507 if (hapd) { 4508 if (hapd->iface->fst) { 4509 wpa_printf(MSG_INFO, "FST: Already attached"); 4510 return -1; 4511 } 4512 fst_hostapd_fill_iface_obj(hapd, &iface_obj); 4513 hapd->iface->fst = fst_attach(ifname, hapd->own_addr, 4514 &iface_obj, &cfg); 4515 if (hapd->iface->fst) 4516 return 0; 4517 } 4518 } 4519 4520 return -EINVAL; 4521 } 4522 4523 4524 static int 4525 hostapd_global_ctrl_iface_fst_detach(struct hapd_interfaces *interfaces, 4526 const char *cmd) 4527 { 4528 char ifname[IFNAMSIZ + 1]; 4529 struct hostapd_data * hapd; 4530 4531 if (!fst_parse_detach_command(cmd, ifname, sizeof(ifname))) { 4532 hapd = hostapd_get_iface(interfaces, ifname); 4533 if (hapd) { 4534 if (!fst_iface_detach(ifname)) { 4535 hapd->iface->fst = NULL; 4536 hapd->iface->fst_ies = NULL; 4537 return 0; 4538 } 4539 } 4540 } 4541 4542 return -EINVAL; 4543 } 4544 4545 #endif /* CONFIG_FST */ 4546 4547 4548 static struct hostapd_data * 4549 hostapd_interfaces_get_hapd(struct hapd_interfaces *interfaces, 4550 const char *ifname) 4551 { 4552 size_t i, j; 4553 4554 for (i = 0; i < interfaces->count; i++) { 4555 struct hostapd_iface *iface = interfaces->iface[i]; 4556 4557 for (j = 0; j < iface->num_bss; j++) { 4558 struct hostapd_data *hapd; 4559 4560 hapd = iface->bss[j]; 4561 if (os_strcmp(ifname, hapd->conf->iface) == 0) 4562 return hapd; 4563 } 4564 } 4565 4566 return NULL; 4567 } 4568 4569 4570 static int hostapd_ctrl_iface_dup_param(struct hostapd_data *src_hapd, 4571 struct hostapd_data *dst_hapd, 4572 const char *param) 4573 { 4574 int res; 4575 char *value; 4576 4577 value = os_zalloc(HOSTAPD_CLI_DUP_VALUE_MAX_LEN); 4578 if (!value) { 4579 wpa_printf(MSG_ERROR, 4580 "DUP: cannot allocate buffer to stringify %s", 4581 param); 4582 goto error_return; 4583 } 4584 4585 if (os_strcmp(param, "wpa") == 0) { 4586 os_snprintf(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN, "%d", 4587 src_hapd->conf->wpa); 4588 } else if (os_strcmp(param, "wpa_key_mgmt") == 0 && 4589 src_hapd->conf->wpa_key_mgmt) { 4590 res = hostapd_ctrl_iface_get_key_mgmt( 4591 src_hapd, value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN); 4592 if (os_snprintf_error(HOSTAPD_CLI_DUP_VALUE_MAX_LEN, res)) 4593 goto error_stringify; 4594 } else if (os_strcmp(param, "wpa_pairwise") == 0 && 4595 src_hapd->conf->wpa_pairwise) { 4596 res = wpa_write_ciphers(value, 4597 value + HOSTAPD_CLI_DUP_VALUE_MAX_LEN, 4598 src_hapd->conf->wpa_pairwise, " "); 4599 if (res < 0) 4600 goto error_stringify; 4601 } else if (os_strcmp(param, "rsn_pairwise") == 0 && 4602 src_hapd->conf->rsn_pairwise) { 4603 res = wpa_write_ciphers(value, 4604 value + HOSTAPD_CLI_DUP_VALUE_MAX_LEN, 4605 src_hapd->conf->rsn_pairwise, " "); 4606 if (res < 0) 4607 goto error_stringify; 4608 } else if (os_strcmp(param, "wpa_passphrase") == 0 && 4609 src_hapd->conf->ssid.wpa_passphrase) { 4610 os_snprintf(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN, "%s", 4611 src_hapd->conf->ssid.wpa_passphrase); 4612 } else if (os_strcmp(param, "wpa_psk") == 0 && 4613 src_hapd->conf->ssid.wpa_psk_set) { 4614 wpa_snprintf_hex(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN, 4615 src_hapd->conf->ssid.wpa_psk->psk, PMK_LEN); 4616 } else { 4617 wpa_printf(MSG_WARNING, "DUP: %s cannot be duplicated", param); 4618 goto error_return; 4619 } 4620 4621 res = hostapd_set_iface(dst_hapd->iconf, dst_hapd->conf, param, value); 4622 os_free(value); 4623 return res; 4624 4625 error_stringify: 4626 wpa_printf(MSG_ERROR, "DUP: cannot stringify %s", param); 4627 error_return: 4628 os_free(value); 4629 return -1; 4630 } 4631 4632 4633 static int 4634 hostapd_global_ctrl_iface_interfaces(struct hapd_interfaces *interfaces, 4635 const char *input, 4636 char *reply, int reply_size) 4637 { 4638 size_t i, j; 4639 int res; 4640 char *pos, *end; 4641 struct hostapd_iface *iface; 4642 int show_ctrl = 0; 4643 4644 if (input) 4645 show_ctrl = !!os_strstr(input, "ctrl"); 4646 4647 pos = reply; 4648 end = reply + reply_size; 4649 4650 for (i = 0; i < interfaces->count; i++) { 4651 iface = interfaces->iface[i]; 4652 4653 for (j = 0; j < iface->num_bss; j++) { 4654 struct hostapd_bss_config *conf; 4655 4656 conf = iface->conf->bss[j]; 4657 if (show_ctrl) 4658 res = os_snprintf(pos, end - pos, 4659 "%s ctrl_iface=%s\n", 4660 conf->iface, 4661 conf->ctrl_interface ? 4662 conf->ctrl_interface : "N/A"); 4663 else 4664 res = os_snprintf(pos, end - pos, "%s\n", 4665 conf->iface); 4666 if (os_snprintf_error(end - pos, res)) { 4667 *pos = '\0'; 4668 return pos - reply; 4669 } 4670 pos += res; 4671 } 4672 } 4673 4674 return pos - reply; 4675 } 4676 4677 4678 static int 4679 hostapd_global_ctrl_iface_dup_network(struct hapd_interfaces *interfaces, 4680 char *cmd) 4681 { 4682 char *p_start = cmd, *p_end; 4683 struct hostapd_data *src_hapd, *dst_hapd; 4684 4685 /* cmd: "<src ifname> <dst ifname> <variable name> */ 4686 4687 p_end = os_strchr(p_start, ' '); 4688 if (!p_end) { 4689 wpa_printf(MSG_ERROR, "DUP: no src ifname found in cmd: '%s'", 4690 cmd); 4691 return -1; 4692 } 4693 4694 *p_end = '\0'; 4695 src_hapd = hostapd_interfaces_get_hapd(interfaces, p_start); 4696 if (!src_hapd) { 4697 wpa_printf(MSG_ERROR, "DUP: no src ifname found: '%s'", 4698 p_start); 4699 return -1; 4700 } 4701 4702 p_start = p_end + 1; 4703 p_end = os_strchr(p_start, ' '); 4704 if (!p_end) { 4705 wpa_printf(MSG_ERROR, "DUP: no dst ifname found in cmd: '%s'", 4706 cmd); 4707 return -1; 4708 } 4709 4710 *p_end = '\0'; 4711 dst_hapd = hostapd_interfaces_get_hapd(interfaces, p_start); 4712 if (!dst_hapd) { 4713 wpa_printf(MSG_ERROR, "DUP: no dst ifname found: '%s'", 4714 p_start); 4715 return -1; 4716 } 4717 4718 p_start = p_end + 1; 4719 return hostapd_ctrl_iface_dup_param(src_hapd, dst_hapd, p_start); 4720 } 4721 4722 4723 static int hostapd_global_ctrl_iface_ifname(struct hapd_interfaces *interfaces, 4724 const char *ifname, 4725 char *buf, char *reply, 4726 int reply_size, 4727 struct sockaddr_storage *from, 4728 socklen_t fromlen) 4729 { 4730 struct hostapd_data *hapd; 4731 4732 hapd = hostapd_interfaces_get_hapd(interfaces, ifname); 4733 if (hapd == NULL) { 4734 int res; 4735 4736 res = os_snprintf(reply, reply_size, "FAIL-NO-IFNAME-MATCH\n"); 4737 if (os_snprintf_error(reply_size, res)) 4738 return -1; 4739 return res; 4740 } 4741 4742 return hostapd_ctrl_iface_receive_process(hapd, buf, reply,reply_size, 4743 from, fromlen); 4744 } 4745 4746 4747 static void hostapd_global_ctrl_iface_receive(int sock, void *eloop_ctx, 4748 void *sock_ctx) 4749 { 4750 struct hapd_interfaces *interfaces = eloop_ctx; 4751 char buffer[256], *buf = buffer; 4752 int res; 4753 struct sockaddr_storage from; 4754 socklen_t fromlen = sizeof(from); 4755 char *reply; 4756 int reply_len; 4757 const int reply_size = 4096; 4758 #ifdef CONFIG_CTRL_IFACE_UDP 4759 unsigned char lcookie[CTRL_IFACE_COOKIE_LEN]; 4760 #endif /* CONFIG_CTRL_IFACE_UDP */ 4761 4762 res = recvfrom(sock, buffer, sizeof(buffer) - 1, 0, 4763 (struct sockaddr *) &from, &fromlen); 4764 if (res < 0) { 4765 wpa_printf(MSG_ERROR, "recvfrom(ctrl_iface): %s", 4766 strerror(errno)); 4767 return; 4768 } 4769 buf[res] = '\0'; 4770 wpa_printf(MSG_DEBUG, "Global ctrl_iface command: %s", buf); 4771 4772 reply = os_malloc(reply_size); 4773 if (reply == NULL) { 4774 if (sendto(sock, "FAIL\n", 5, 0, (struct sockaddr *) &from, 4775 fromlen) < 0) { 4776 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s", 4777 strerror(errno)); 4778 } 4779 return; 4780 } 4781 4782 os_memcpy(reply, "OK\n", 3); 4783 reply_len = 3; 4784 4785 #ifdef CONFIG_CTRL_IFACE_UDP 4786 if (os_strcmp(buf, "GET_COOKIE") == 0) { 4787 os_memcpy(reply, "COOKIE=", 7); 4788 wpa_snprintf_hex(reply + 7, 2 * CTRL_IFACE_COOKIE_LEN + 1, 4789 interfaces->ctrl_iface_cookie, 4790 CTRL_IFACE_COOKIE_LEN); 4791 reply_len = 7 + 2 * CTRL_IFACE_COOKIE_LEN; 4792 goto send_reply; 4793 } 4794 4795 if (os_strncmp(buf, "COOKIE=", 7) != 0 || 4796 hexstr2bin(buf + 7, lcookie, CTRL_IFACE_COOKIE_LEN) < 0) { 4797 wpa_printf(MSG_DEBUG, 4798 "CTRL: No cookie in the request - drop request"); 4799 os_free(reply); 4800 return; 4801 } 4802 4803 if (os_memcmp(interfaces->ctrl_iface_cookie, lcookie, 4804 CTRL_IFACE_COOKIE_LEN) != 0) { 4805 wpa_printf(MSG_DEBUG, 4806 "CTRL: Invalid cookie in the request - drop request"); 4807 os_free(reply); 4808 return; 4809 } 4810 4811 buf += 7 + 2 * CTRL_IFACE_COOKIE_LEN; 4812 while (*buf == ' ') 4813 buf++; 4814 #endif /* CONFIG_CTRL_IFACE_UDP */ 4815 4816 if (os_strncmp(buf, "IFNAME=", 7) == 0) { 4817 char *pos = os_strchr(buf + 7, ' '); 4818 4819 if (pos) { 4820 *pos++ = '\0'; 4821 reply_len = hostapd_global_ctrl_iface_ifname( 4822 interfaces, buf + 7, pos, reply, reply_size, 4823 &from, fromlen); 4824 goto send_reply; 4825 } 4826 } 4827 4828 if (os_strcmp(buf, "PING") == 0) { 4829 os_memcpy(reply, "PONG\n", 5); 4830 reply_len = 5; 4831 } else if (os_strncmp(buf, "RELOG", 5) == 0) { 4832 if (wpa_debug_reopen_file() < 0) 4833 reply_len = -1; 4834 } else if (os_strcmp(buf, "FLUSH") == 0) { 4835 hostapd_ctrl_iface_flush(interfaces); 4836 } else if (os_strncmp(buf, "ADD ", 4) == 0) { 4837 if (hostapd_ctrl_iface_add(interfaces, buf + 4) < 0) 4838 reply_len = -1; 4839 } else if (os_strncmp(buf, "REMOVE ", 7) == 0) { 4840 if (hostapd_ctrl_iface_remove(interfaces, buf + 7) < 0) 4841 reply_len = -1; 4842 } else if (os_strcmp(buf, "ATTACH") == 0) { 4843 if (hostapd_global_ctrl_iface_attach(interfaces, &from, 4844 fromlen, NULL)) 4845 reply_len = -1; 4846 } else if (os_strncmp(buf, "ATTACH ", 7) == 0) { 4847 if (hostapd_global_ctrl_iface_attach(interfaces, &from, 4848 fromlen, buf + 7)) 4849 reply_len = -1; 4850 } else if (os_strcmp(buf, "DETACH") == 0) { 4851 if (hostapd_global_ctrl_iface_detach(interfaces, &from, 4852 fromlen)) 4853 reply_len = -1; 4854 #ifdef CONFIG_MODULE_TESTS 4855 } else if (os_strcmp(buf, "MODULE_TESTS") == 0) { 4856 if (hapd_module_tests() < 0) 4857 reply_len = -1; 4858 #endif /* CONFIG_MODULE_TESTS */ 4859 #ifdef CONFIG_FST 4860 } else if (os_strncmp(buf, "FST-ATTACH ", 11) == 0) { 4861 if (!hostapd_global_ctrl_iface_fst_attach(interfaces, buf + 11)) 4862 reply_len = os_snprintf(reply, reply_size, "OK\n"); 4863 else 4864 reply_len = -1; 4865 } else if (os_strncmp(buf, "FST-DETACH ", 11) == 0) { 4866 if (!hostapd_global_ctrl_iface_fst_detach(interfaces, buf + 11)) 4867 reply_len = os_snprintf(reply, reply_size, "OK\n"); 4868 else 4869 reply_len = -1; 4870 } else if (os_strncmp(buf, "FST-MANAGER ", 12) == 0) { 4871 reply_len = fst_ctrl_iface_receive(buf + 12, reply, reply_size); 4872 #endif /* CONFIG_FST */ 4873 } else if (os_strncmp(buf, "DUP_NETWORK ", 12) == 0) { 4874 if (!hostapd_global_ctrl_iface_dup_network(interfaces, 4875 buf + 12)) 4876 reply_len = os_snprintf(reply, reply_size, "OK\n"); 4877 else 4878 reply_len = -1; 4879 } else if (os_strncmp(buf, "INTERFACES", 10) == 0) { 4880 reply_len = hostapd_global_ctrl_iface_interfaces( 4881 interfaces, buf + 10, reply, sizeof(buffer)); 4882 } else if (os_strcmp(buf, "TERMINATE") == 0) { 4883 eloop_terminate(); 4884 } else { 4885 wpa_printf(MSG_DEBUG, "Unrecognized global ctrl_iface command " 4886 "ignored"); 4887 reply_len = -1; 4888 } 4889 4890 send_reply: 4891 if (reply_len < 0) { 4892 os_memcpy(reply, "FAIL\n", 5); 4893 reply_len = 5; 4894 } 4895 4896 if (sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from, 4897 fromlen) < 0) { 4898 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s", 4899 strerror(errno)); 4900 } 4901 os_free(reply); 4902 } 4903 4904 4905 #ifndef CONFIG_CTRL_IFACE_UDP 4906 static char * hostapd_global_ctrl_iface_path(struct hapd_interfaces *interface) 4907 { 4908 char *buf; 4909 size_t len; 4910 4911 if (interface->global_iface_path == NULL) 4912 return NULL; 4913 4914 len = os_strlen(interface->global_iface_path) + 4915 os_strlen(interface->global_iface_name) + 2; 4916 buf = os_malloc(len); 4917 if (buf == NULL) 4918 return NULL; 4919 4920 os_snprintf(buf, len, "%s/%s", interface->global_iface_path, 4921 interface->global_iface_name); 4922 buf[len - 1] = '\0'; 4923 return buf; 4924 } 4925 #endif /* CONFIG_CTRL_IFACE_UDP */ 4926 4927 4928 int hostapd_global_ctrl_iface_init(struct hapd_interfaces *interface) 4929 { 4930 #ifdef CONFIG_CTRL_IFACE_UDP 4931 int port = HOSTAPD_GLOBAL_CTRL_IFACE_PORT; 4932 char p[32] = { 0 }; 4933 char *pos; 4934 struct addrinfo hints = { 0 }, *res, *saveres; 4935 int n; 4936 4937 if (interface->global_ctrl_sock > -1) { 4938 wpa_printf(MSG_DEBUG, "ctrl_iface already exists!"); 4939 return 0; 4940 } 4941 4942 if (interface->global_iface_path == NULL) 4943 return 0; 4944 4945 pos = os_strstr(interface->global_iface_path, "udp:"); 4946 if (pos) { 4947 pos += 4; 4948 port = atoi(pos); 4949 if (port <= 0) { 4950 wpa_printf(MSG_ERROR, "Invalid global ctrl UDP port"); 4951 goto fail; 4952 } 4953 } 4954 4955 os_get_random(interface->ctrl_iface_cookie, CTRL_IFACE_COOKIE_LEN); 4956 4957 #ifdef CONFIG_CTRL_IFACE_UDP_REMOTE 4958 hints.ai_flags = AI_PASSIVE; 4959 #endif /* CONFIG_CTRL_IFACE_UDP_REMOTE */ 4960 4961 #ifdef CONFIG_CTRL_IFACE_UDP_IPV6 4962 hints.ai_family = AF_INET6; 4963 #else /* CONFIG_CTRL_IFACE_UDP_IPV6 */ 4964 hints.ai_family = AF_INET; 4965 #endif /* CONFIG_CTRL_IFACE_UDP_IPV6 */ 4966 hints.ai_socktype = SOCK_DGRAM; 4967 4968 try_again: 4969 os_snprintf(p, sizeof(p), "%d", port); 4970 n = getaddrinfo(NULL, p, &hints, &res); 4971 if (n) { 4972 wpa_printf(MSG_ERROR, "getaddrinfo(): %s", gai_strerror(n)); 4973 goto fail; 4974 } 4975 4976 saveres = res; 4977 interface->global_ctrl_sock = socket(res->ai_family, res->ai_socktype, 4978 res->ai_protocol); 4979 if (interface->global_ctrl_sock < 0) { 4980 wpa_printf(MSG_ERROR, "socket(PF_INET): %s", strerror(errno)); 4981 goto fail; 4982 } 4983 4984 if (bind(interface->global_ctrl_sock, res->ai_addr, res->ai_addrlen) < 4985 0) { 4986 port++; 4987 if ((port - HOSTAPD_GLOBAL_CTRL_IFACE_PORT) < 4988 HOSTAPD_GLOBAL_CTRL_IFACE_PORT_LIMIT && !pos) 4989 goto try_again; 4990 wpa_printf(MSG_ERROR, "bind(AF_INET): %s", strerror(errno)); 4991 goto fail; 4992 } 4993 4994 freeaddrinfo(saveres); 4995 4996 wpa_printf(MSG_DEBUG, "global ctrl_iface_init UDP port: %d", port); 4997 4998 if (eloop_register_read_sock(interface->global_ctrl_sock, 4999 hostapd_global_ctrl_iface_receive, 5000 interface, NULL) < 0) { 5001 hostapd_global_ctrl_iface_deinit(interface); 5002 return -1; 5003 } 5004 5005 wpa_msg_register_cb(hostapd_ctrl_iface_msg_cb); 5006 5007 return 0; 5008 5009 fail: 5010 if (interface->global_ctrl_sock >= 0) 5011 close(interface->global_ctrl_sock); 5012 return -1; 5013 #else /* CONFIG_CTRL_IFACE_UDP */ 5014 struct sockaddr_un addr; 5015 int s = -1; 5016 char *fname = NULL; 5017 5018 if (interface->global_iface_path == NULL) { 5019 wpa_printf(MSG_DEBUG, "ctrl_iface not configured!"); 5020 return 0; 5021 } 5022 5023 if (mkdir(interface->global_iface_path, S_IRWXU | S_IRWXG) < 0) { 5024 if (errno == EEXIST) { 5025 wpa_printf(MSG_DEBUG, "Using existing control " 5026 "interface directory."); 5027 } else { 5028 wpa_printf(MSG_ERROR, "mkdir[ctrl_interface]: %s", 5029 strerror(errno)); 5030 goto fail; 5031 } 5032 } else if (interface->ctrl_iface_group && 5033 lchown(interface->global_iface_path, -1, 5034 interface->ctrl_iface_group) < 0) { 5035 wpa_printf(MSG_ERROR, "lchown[ctrl_interface]: %s", 5036 strerror(errno)); 5037 goto fail; 5038 } 5039 5040 if (os_strlen(interface->global_iface_path) + 1 + 5041 os_strlen(interface->global_iface_name) >= sizeof(addr.sun_path)) 5042 goto fail; 5043 5044 s = socket(PF_UNIX, SOCK_DGRAM, 0); 5045 if (s < 0) { 5046 wpa_printf(MSG_ERROR, "socket(PF_UNIX): %s", strerror(errno)); 5047 goto fail; 5048 } 5049 5050 os_memset(&addr, 0, sizeof(addr)); 5051 #ifdef __FreeBSD__ 5052 addr.sun_len = sizeof(addr); 5053 #endif /* __FreeBSD__ */ 5054 addr.sun_family = AF_UNIX; 5055 fname = hostapd_global_ctrl_iface_path(interface); 5056 if (fname == NULL) 5057 goto fail; 5058 os_strlcpy(addr.sun_path, fname, sizeof(addr.sun_path)); 5059 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) { 5060 wpa_printf(MSG_DEBUG, "ctrl_iface bind(PF_UNIX) failed: %s", 5061 strerror(errno)); 5062 if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) { 5063 wpa_printf(MSG_DEBUG, "ctrl_iface exists, but does not" 5064 " allow connections - assuming it was left" 5065 "over from forced program termination"); 5066 if (unlink(fname) < 0) { 5067 wpa_printf(MSG_ERROR, 5068 "Could not unlink existing ctrl_iface socket '%s': %s", 5069 fname, strerror(errno)); 5070 goto fail; 5071 } 5072 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 5073 0) { 5074 wpa_printf(MSG_ERROR, "bind(PF_UNIX): %s", 5075 strerror(errno)); 5076 goto fail; 5077 } 5078 wpa_printf(MSG_DEBUG, "Successfully replaced leftover " 5079 "ctrl_iface socket '%s'", fname); 5080 } else { 5081 wpa_printf(MSG_INFO, "ctrl_iface exists and seems to " 5082 "be in use - cannot override it"); 5083 wpa_printf(MSG_INFO, "Delete '%s' manually if it is " 5084 "not used anymore", fname); 5085 os_free(fname); 5086 fname = NULL; 5087 goto fail; 5088 } 5089 } 5090 5091 if (interface->ctrl_iface_group && 5092 lchown(fname, -1, interface->ctrl_iface_group) < 0) { 5093 wpa_printf(MSG_ERROR, "lchown[ctrl_interface]: %s", 5094 strerror(errno)); 5095 goto fail; 5096 } 5097 5098 if (chmod(fname, S_IRWXU | S_IRWXG) < 0) { 5099 wpa_printf(MSG_ERROR, "chmod[ctrl_interface/ifname]: %s", 5100 strerror(errno)); 5101 goto fail; 5102 } 5103 os_free(fname); 5104 5105 interface->global_ctrl_sock = s; 5106 eloop_register_read_sock(s, hostapd_global_ctrl_iface_receive, 5107 interface, NULL); 5108 5109 wpa_msg_register_cb(hostapd_ctrl_iface_msg_cb); 5110 5111 return 0; 5112 5113 fail: 5114 if (s >= 0) 5115 close(s); 5116 if (fname) { 5117 unlink(fname); 5118 os_free(fname); 5119 } 5120 return -1; 5121 #endif /* CONFIG_CTRL_IFACE_UDP */ 5122 } 5123 5124 5125 void hostapd_global_ctrl_iface_deinit(struct hapd_interfaces *interfaces) 5126 { 5127 #ifndef CONFIG_CTRL_IFACE_UDP 5128 char *fname = NULL; 5129 #endif /* CONFIG_CTRL_IFACE_UDP */ 5130 struct wpa_ctrl_dst *dst, *prev; 5131 5132 if (interfaces->global_ctrl_sock > -1) { 5133 eloop_unregister_read_sock(interfaces->global_ctrl_sock); 5134 close(interfaces->global_ctrl_sock); 5135 interfaces->global_ctrl_sock = -1; 5136 #ifndef CONFIG_CTRL_IFACE_UDP 5137 fname = hostapd_global_ctrl_iface_path(interfaces); 5138 if (fname) { 5139 unlink(fname); 5140 os_free(fname); 5141 } 5142 5143 if (interfaces->global_iface_path && 5144 rmdir(interfaces->global_iface_path) < 0) { 5145 if (errno == ENOTEMPTY) { 5146 wpa_printf(MSG_DEBUG, "Control interface " 5147 "directory not empty - leaving it " 5148 "behind"); 5149 } else { 5150 wpa_printf(MSG_ERROR, 5151 "rmdir[ctrl_interface=%s]: %s", 5152 interfaces->global_iface_path, 5153 strerror(errno)); 5154 } 5155 } 5156 #endif /* CONFIG_CTRL_IFACE_UDP */ 5157 } 5158 5159 os_free(interfaces->global_iface_path); 5160 interfaces->global_iface_path = NULL; 5161 5162 dl_list_for_each_safe(dst, prev, &interfaces->global_ctrl_dst, 5163 struct wpa_ctrl_dst, list) 5164 os_free(dst); 5165 } 5166 5167 5168 static int hostapd_ctrl_check_event_enabled(struct wpa_ctrl_dst *dst, 5169 const char *buf) 5170 { 5171 /* Enable Probe Request events based on explicit request. 5172 * Other events are enabled by default. 5173 */ 5174 if (str_starts(buf, RX_PROBE_REQUEST)) 5175 return !!(dst->events & WPA_EVENT_RX_PROBE_REQUEST); 5176 return 1; 5177 } 5178 5179 5180 static void hostapd_ctrl_iface_send_internal(int sock, struct dl_list *ctrl_dst, 5181 const char *ifname, int level, 5182 const char *buf, size_t len) 5183 { 5184 struct wpa_ctrl_dst *dst, *next; 5185 struct msghdr msg; 5186 int idx, res; 5187 struct iovec io[5]; 5188 char levelstr[10]; 5189 5190 if (sock < 0 || dl_list_empty(ctrl_dst)) 5191 return; 5192 5193 res = os_snprintf(levelstr, sizeof(levelstr), "<%d>", level); 5194 if (os_snprintf_error(sizeof(levelstr), res)) 5195 return; 5196 idx = 0; 5197 if (ifname) { 5198 io[idx].iov_base = "IFNAME="; 5199 io[idx].iov_len = 7; 5200 idx++; 5201 io[idx].iov_base = (char *) ifname; 5202 io[idx].iov_len = os_strlen(ifname); 5203 idx++; 5204 io[idx].iov_base = " "; 5205 io[idx].iov_len = 1; 5206 idx++; 5207 } 5208 io[idx].iov_base = levelstr; 5209 io[idx].iov_len = os_strlen(levelstr); 5210 idx++; 5211 io[idx].iov_base = (char *) buf; 5212 io[idx].iov_len = len; 5213 idx++; 5214 os_memset(&msg, 0, sizeof(msg)); 5215 msg.msg_iov = io; 5216 msg.msg_iovlen = idx; 5217 5218 idx = 0; 5219 dl_list_for_each_safe(dst, next, ctrl_dst, struct wpa_ctrl_dst, list) { 5220 if ((level >= dst->debug_level) && 5221 hostapd_ctrl_check_event_enabled(dst, buf)) { 5222 sockaddr_print(MSG_DEBUG, "CTRL_IFACE monitor send", 5223 &dst->addr, dst->addrlen); 5224 msg.msg_name = &dst->addr; 5225 msg.msg_namelen = dst->addrlen; 5226 if (sendmsg(sock, &msg, 0) < 0) { 5227 int _errno = errno; 5228 wpa_printf(MSG_INFO, "CTRL_IFACE monitor[%d]: " 5229 "%d - %s", 5230 idx, errno, strerror(errno)); 5231 dst->errors++; 5232 if (dst->errors > 10 || _errno == ENOENT) { 5233 ctrl_iface_detach(ctrl_dst, 5234 &dst->addr, 5235 dst->addrlen); 5236 } 5237 } else 5238 dst->errors = 0; 5239 } 5240 idx++; 5241 } 5242 } 5243 5244 5245 static void hostapd_ctrl_iface_send(struct hostapd_data *hapd, int level, 5246 enum wpa_msg_type type, 5247 const char *buf, size_t len) 5248 { 5249 if (type != WPA_MSG_NO_GLOBAL) { 5250 hostapd_ctrl_iface_send_internal( 5251 hapd->iface->interfaces->global_ctrl_sock, 5252 &hapd->iface->interfaces->global_ctrl_dst, 5253 type != WPA_MSG_PER_INTERFACE ? 5254 NULL : hapd->conf->iface, 5255 level, buf, len); 5256 } 5257 5258 if (type != WPA_MSG_ONLY_GLOBAL) { 5259 hostapd_ctrl_iface_send_internal( 5260 hapd->ctrl_sock, &hapd->ctrl_dst, 5261 NULL, level, buf, len); 5262 } 5263 } 5264 5265 #endif /* CONFIG_NATIVE_WINDOWS */ 5266