ctrl_iface.c revision fe31a9a8fff325bfddbf06fc3e9edaf480824bee
1/* 2 * hostapd / UNIX domain socket -based control interface 3 * Copyright (c) 2004-2015, 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#include <net/ethernet.h> 15#include <netinet/ip.h> 16#endif /* CONFIG_TESTING_OPTIONS */ 17 18#include <sys/un.h> 19#include <sys/stat.h> 20#include <stddef.h> 21 22#ifdef CONFIG_CTRL_IFACE_UDP 23#include <netdb.h> 24#endif /* CONFIG_CTRL_IFACE_UDP */ 25 26#include "utils/common.h" 27#include "utils/eloop.h" 28#include "utils/module_tests.h" 29#include "common/version.h" 30#include "common/ieee802_11_defs.h" 31#include "common/ctrl_iface_common.h" 32#include "crypto/tls.h" 33#include "drivers/driver.h" 34#include "eapol_auth/eapol_auth_sm.h" 35#include "radius/radius_client.h" 36#include "radius/radius_server.h" 37#include "l2_packet/l2_packet.h" 38#include "ap/hostapd.h" 39#include "ap/ap_config.h" 40#include "ap/ieee802_1x.h" 41#include "ap/wpa_auth.h" 42#include "ap/ieee802_11.h" 43#include "ap/sta_info.h" 44#include "ap/wps_hostapd.h" 45#include "ap/ctrl_iface_ap.h" 46#include "ap/ap_drv_ops.h" 47#include "ap/hs20.h" 48#include "ap/wnm_ap.h" 49#include "ap/wpa_auth.h" 50#include "ap/beacon.h" 51#include "ap/neighbor_db.h" 52#include "ap/rrm.h" 53#include "wps/wps_defs.h" 54#include "wps/wps.h" 55#include "fst/fst_ctrl_iface.h" 56#include "config_file.h" 57#include "ctrl_iface.h" 58 59 60#define HOSTAPD_CLI_DUP_VALUE_MAX_LEN 256 61 62#ifdef CONFIG_CTRL_IFACE_UDP 63#define COOKIE_LEN 8 64static unsigned char cookie[COOKIE_LEN]; 65static unsigned char gcookie[COOKIE_LEN]; 66#define HOSTAPD_CTRL_IFACE_PORT 8877 67#define HOSTAPD_CTRL_IFACE_PORT_LIMIT 50 68#define HOSTAPD_GLOBAL_CTRL_IFACE_PORT 8878 69#define HOSTAPD_GLOBAL_CTRL_IFACE_PORT_LIMIT 50 70#endif /* CONFIG_CTRL_IFACE_UDP */ 71 72static void hostapd_ctrl_iface_send(struct hostapd_data *hapd, int level, 73 enum wpa_msg_type type, 74 const char *buf, size_t len); 75 76 77static int hostapd_ctrl_iface_attach(struct hostapd_data *hapd, 78 struct sockaddr_storage *from, 79 socklen_t fromlen) 80{ 81 return ctrl_iface_attach(&hapd->ctrl_dst, from, fromlen); 82} 83 84 85static int hostapd_ctrl_iface_detach(struct hostapd_data *hapd, 86 struct sockaddr_storage *from, 87 socklen_t fromlen) 88{ 89 return ctrl_iface_detach(&hapd->ctrl_dst, from, fromlen); 90} 91 92 93static int hostapd_ctrl_iface_level(struct hostapd_data *hapd, 94 struct sockaddr_storage *from, 95 socklen_t fromlen, 96 char *level) 97{ 98 return ctrl_iface_level(&hapd->ctrl_dst, from, fromlen, level); 99} 100 101 102static int hostapd_ctrl_iface_new_sta(struct hostapd_data *hapd, 103 const char *txtaddr) 104{ 105 u8 addr[ETH_ALEN]; 106 struct sta_info *sta; 107 108 wpa_printf(MSG_DEBUG, "CTRL_IFACE NEW_STA %s", txtaddr); 109 110 if (hwaddr_aton(txtaddr, addr)) 111 return -1; 112 113 sta = ap_get_sta(hapd, addr); 114 if (sta) 115 return 0; 116 117 wpa_printf(MSG_DEBUG, "Add new STA " MACSTR " based on ctrl_iface " 118 "notification", MAC2STR(addr)); 119 sta = ap_sta_add(hapd, addr); 120 if (sta == NULL) 121 return -1; 122 123 hostapd_new_assoc_sta(hapd, sta, 0); 124 return 0; 125} 126 127 128#ifdef CONFIG_IEEE80211W 129#ifdef NEED_AP_MLME 130static int hostapd_ctrl_iface_sa_query(struct hostapd_data *hapd, 131 const char *txtaddr) 132{ 133 u8 addr[ETH_ALEN]; 134 u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN]; 135 136 wpa_printf(MSG_DEBUG, "CTRL_IFACE SA_QUERY %s", txtaddr); 137 138 if (hwaddr_aton(txtaddr, addr) || 139 os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0) 140 return -1; 141 142 ieee802_11_send_sa_query_req(hapd, addr, trans_id); 143 144 return 0; 145} 146#endif /* NEED_AP_MLME */ 147#endif /* CONFIG_IEEE80211W */ 148 149 150#ifdef CONFIG_WPS 151static int hostapd_ctrl_iface_wps_pin(struct hostapd_data *hapd, char *txt) 152{ 153 char *pin = os_strchr(txt, ' '); 154 char *timeout_txt; 155 int timeout; 156 u8 addr_buf[ETH_ALEN], *addr = NULL; 157 char *pos; 158 159 if (pin == NULL) 160 return -1; 161 *pin++ = '\0'; 162 163 timeout_txt = os_strchr(pin, ' '); 164 if (timeout_txt) { 165 *timeout_txt++ = '\0'; 166 timeout = atoi(timeout_txt); 167 pos = os_strchr(timeout_txt, ' '); 168 if (pos) { 169 *pos++ = '\0'; 170 if (hwaddr_aton(pos, addr_buf) == 0) 171 addr = addr_buf; 172 } 173 } else 174 timeout = 0; 175 176 return hostapd_wps_add_pin(hapd, addr, txt, pin, timeout); 177} 178 179 180static int hostapd_ctrl_iface_wps_check_pin( 181 struct hostapd_data *hapd, char *cmd, char *buf, size_t buflen) 182{ 183 char pin[9]; 184 size_t len; 185 char *pos; 186 int ret; 187 188 wpa_hexdump_ascii_key(MSG_DEBUG, "WPS_CHECK_PIN", 189 (u8 *) cmd, os_strlen(cmd)); 190 for (pos = cmd, len = 0; *pos != '\0'; pos++) { 191 if (*pos < '0' || *pos > '9') 192 continue; 193 pin[len++] = *pos; 194 if (len == 9) { 195 wpa_printf(MSG_DEBUG, "WPS: Too long PIN"); 196 return -1; 197 } 198 } 199 if (len != 4 && len != 8) { 200 wpa_printf(MSG_DEBUG, "WPS: Invalid PIN length %d", (int) len); 201 return -1; 202 } 203 pin[len] = '\0'; 204 205 if (len == 8) { 206 unsigned int pin_val; 207 pin_val = atoi(pin); 208 if (!wps_pin_valid(pin_val)) { 209 wpa_printf(MSG_DEBUG, "WPS: Invalid checksum digit"); 210 ret = os_snprintf(buf, buflen, "FAIL-CHECKSUM\n"); 211 if (os_snprintf_error(buflen, ret)) 212 return -1; 213 return ret; 214 } 215 } 216 217 ret = os_snprintf(buf, buflen, "%s", pin); 218 if (os_snprintf_error(buflen, ret)) 219 return -1; 220 221 return ret; 222} 223 224 225#ifdef CONFIG_WPS_NFC 226static int hostapd_ctrl_iface_wps_nfc_tag_read(struct hostapd_data *hapd, 227 char *pos) 228{ 229 size_t len; 230 struct wpabuf *buf; 231 int ret; 232 233 len = os_strlen(pos); 234 if (len & 0x01) 235 return -1; 236 len /= 2; 237 238 buf = wpabuf_alloc(len); 239 if (buf == NULL) 240 return -1; 241 if (hexstr2bin(pos, wpabuf_put(buf, len), len) < 0) { 242 wpabuf_free(buf); 243 return -1; 244 } 245 246 ret = hostapd_wps_nfc_tag_read(hapd, buf); 247 wpabuf_free(buf); 248 249 return ret; 250} 251 252 253static int hostapd_ctrl_iface_wps_nfc_config_token(struct hostapd_data *hapd, 254 char *cmd, char *reply, 255 size_t max_len) 256{ 257 int ndef; 258 struct wpabuf *buf; 259 int res; 260 261 if (os_strcmp(cmd, "WPS") == 0) 262 ndef = 0; 263 else if (os_strcmp(cmd, "NDEF") == 0) 264 ndef = 1; 265 else 266 return -1; 267 268 buf = hostapd_wps_nfc_config_token(hapd, ndef); 269 if (buf == NULL) 270 return -1; 271 272 res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf), 273 wpabuf_len(buf)); 274 reply[res++] = '\n'; 275 reply[res] = '\0'; 276 277 wpabuf_free(buf); 278 279 return res; 280} 281 282 283static int hostapd_ctrl_iface_wps_nfc_token_gen(struct hostapd_data *hapd, 284 char *reply, size_t max_len, 285 int ndef) 286{ 287 struct wpabuf *buf; 288 int res; 289 290 buf = hostapd_wps_nfc_token_gen(hapd, ndef); 291 if (buf == NULL) 292 return -1; 293 294 res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf), 295 wpabuf_len(buf)); 296 reply[res++] = '\n'; 297 reply[res] = '\0'; 298 299 wpabuf_free(buf); 300 301 return res; 302} 303 304 305static int hostapd_ctrl_iface_wps_nfc_token(struct hostapd_data *hapd, 306 char *cmd, char *reply, 307 size_t max_len) 308{ 309 if (os_strcmp(cmd, "WPS") == 0) 310 return hostapd_ctrl_iface_wps_nfc_token_gen(hapd, reply, 311 max_len, 0); 312 313 if (os_strcmp(cmd, "NDEF") == 0) 314 return hostapd_ctrl_iface_wps_nfc_token_gen(hapd, reply, 315 max_len, 1); 316 317 if (os_strcmp(cmd, "enable") == 0) 318 return hostapd_wps_nfc_token_enable(hapd); 319 320 if (os_strcmp(cmd, "disable") == 0) { 321 hostapd_wps_nfc_token_disable(hapd); 322 return 0; 323 } 324 325 return -1; 326} 327 328 329static int hostapd_ctrl_iface_nfc_get_handover_sel(struct hostapd_data *hapd, 330 char *cmd, char *reply, 331 size_t max_len) 332{ 333 struct wpabuf *buf; 334 int res; 335 char *pos; 336 int ndef; 337 338 pos = os_strchr(cmd, ' '); 339 if (pos == NULL) 340 return -1; 341 *pos++ = '\0'; 342 343 if (os_strcmp(cmd, "WPS") == 0) 344 ndef = 0; 345 else if (os_strcmp(cmd, "NDEF") == 0) 346 ndef = 1; 347 else 348 return -1; 349 350 if (os_strcmp(pos, "WPS-CR") == 0) 351 buf = hostapd_wps_nfc_hs_cr(hapd, ndef); 352 else 353 buf = NULL; 354 if (buf == NULL) 355 return -1; 356 357 res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf), 358 wpabuf_len(buf)); 359 reply[res++] = '\n'; 360 reply[res] = '\0'; 361 362 wpabuf_free(buf); 363 364 return res; 365} 366 367 368static int hostapd_ctrl_iface_nfc_report_handover(struct hostapd_data *hapd, 369 char *cmd) 370{ 371 size_t len; 372 struct wpabuf *req, *sel; 373 int ret; 374 char *pos, *role, *type, *pos2; 375 376 role = cmd; 377 pos = os_strchr(role, ' '); 378 if (pos == NULL) 379 return -1; 380 *pos++ = '\0'; 381 382 type = pos; 383 pos = os_strchr(type, ' '); 384 if (pos == NULL) 385 return -1; 386 *pos++ = '\0'; 387 388 pos2 = os_strchr(pos, ' '); 389 if (pos2 == NULL) 390 return -1; 391 *pos2++ = '\0'; 392 393 len = os_strlen(pos); 394 if (len & 0x01) 395 return -1; 396 len /= 2; 397 398 req = wpabuf_alloc(len); 399 if (req == NULL) 400 return -1; 401 if (hexstr2bin(pos, wpabuf_put(req, len), len) < 0) { 402 wpabuf_free(req); 403 return -1; 404 } 405 406 len = os_strlen(pos2); 407 if (len & 0x01) { 408 wpabuf_free(req); 409 return -1; 410 } 411 len /= 2; 412 413 sel = wpabuf_alloc(len); 414 if (sel == NULL) { 415 wpabuf_free(req); 416 return -1; 417 } 418 if (hexstr2bin(pos2, wpabuf_put(sel, len), len) < 0) { 419 wpabuf_free(req); 420 wpabuf_free(sel); 421 return -1; 422 } 423 424 if (os_strcmp(role, "RESP") == 0 && os_strcmp(type, "WPS") == 0) { 425 ret = hostapd_wps_nfc_report_handover(hapd, req, sel); 426 } else { 427 wpa_printf(MSG_DEBUG, "NFC: Unsupported connection handover " 428 "reported: role=%s type=%s", role, type); 429 ret = -1; 430 } 431 wpabuf_free(req); 432 wpabuf_free(sel); 433 434 return ret; 435} 436 437#endif /* CONFIG_WPS_NFC */ 438 439 440static int hostapd_ctrl_iface_wps_ap_pin(struct hostapd_data *hapd, char *txt, 441 char *buf, size_t buflen) 442{ 443 int timeout = 300; 444 char *pos; 445 const char *pin_txt; 446 447 pos = os_strchr(txt, ' '); 448 if (pos) 449 *pos++ = '\0'; 450 451 if (os_strcmp(txt, "disable") == 0) { 452 hostapd_wps_ap_pin_disable(hapd); 453 return os_snprintf(buf, buflen, "OK\n"); 454 } 455 456 if (os_strcmp(txt, "random") == 0) { 457 if (pos) 458 timeout = atoi(pos); 459 pin_txt = hostapd_wps_ap_pin_random(hapd, timeout); 460 if (pin_txt == NULL) 461 return -1; 462 return os_snprintf(buf, buflen, "%s", pin_txt); 463 } 464 465 if (os_strcmp(txt, "get") == 0) { 466 pin_txt = hostapd_wps_ap_pin_get(hapd); 467 if (pin_txt == NULL) 468 return -1; 469 return os_snprintf(buf, buflen, "%s", pin_txt); 470 } 471 472 if (os_strcmp(txt, "set") == 0) { 473 char *pin; 474 if (pos == NULL) 475 return -1; 476 pin = pos; 477 pos = os_strchr(pos, ' '); 478 if (pos) { 479 *pos++ = '\0'; 480 timeout = atoi(pos); 481 } 482 if (os_strlen(pin) > buflen) 483 return -1; 484 if (hostapd_wps_ap_pin_set(hapd, pin, timeout) < 0) 485 return -1; 486 return os_snprintf(buf, buflen, "%s", pin); 487 } 488 489 return -1; 490} 491 492 493static int hostapd_ctrl_iface_wps_config(struct hostapd_data *hapd, char *txt) 494{ 495 char *pos; 496 char *ssid, *auth, *encr = NULL, *key = NULL; 497 498 ssid = txt; 499 pos = os_strchr(txt, ' '); 500 if (!pos) 501 return -1; 502 *pos++ = '\0'; 503 504 auth = pos; 505 pos = os_strchr(pos, ' '); 506 if (pos) { 507 *pos++ = '\0'; 508 encr = pos; 509 pos = os_strchr(pos, ' '); 510 if (pos) { 511 *pos++ = '\0'; 512 key = pos; 513 } 514 } 515 516 return hostapd_wps_config_ap(hapd, ssid, auth, encr, key); 517} 518 519 520static const char * pbc_status_str(enum pbc_status status) 521{ 522 switch (status) { 523 case WPS_PBC_STATUS_DISABLE: 524 return "Disabled"; 525 case WPS_PBC_STATUS_ACTIVE: 526 return "Active"; 527 case WPS_PBC_STATUS_TIMEOUT: 528 return "Timed-out"; 529 case WPS_PBC_STATUS_OVERLAP: 530 return "Overlap"; 531 default: 532 return "Unknown"; 533 } 534} 535 536 537static int hostapd_ctrl_iface_wps_get_status(struct hostapd_data *hapd, 538 char *buf, size_t buflen) 539{ 540 int ret; 541 char *pos, *end; 542 543 pos = buf; 544 end = buf + buflen; 545 546 ret = os_snprintf(pos, end - pos, "PBC Status: %s\n", 547 pbc_status_str(hapd->wps_stats.pbc_status)); 548 549 if (os_snprintf_error(end - pos, ret)) 550 return pos - buf; 551 pos += ret; 552 553 ret = os_snprintf(pos, end - pos, "Last WPS result: %s\n", 554 (hapd->wps_stats.status == WPS_STATUS_SUCCESS ? 555 "Success": 556 (hapd->wps_stats.status == WPS_STATUS_FAILURE ? 557 "Failed" : "None"))); 558 559 if (os_snprintf_error(end - pos, ret)) 560 return pos - buf; 561 pos += ret; 562 563 /* If status == Failure - Add possible Reasons */ 564 if(hapd->wps_stats.status == WPS_STATUS_FAILURE && 565 hapd->wps_stats.failure_reason > 0) { 566 ret = os_snprintf(pos, end - pos, 567 "Failure Reason: %s\n", 568 wps_ei_str(hapd->wps_stats.failure_reason)); 569 570 if (os_snprintf_error(end - pos, ret)) 571 return pos - buf; 572 pos += ret; 573 } 574 575 if (hapd->wps_stats.status) { 576 ret = os_snprintf(pos, end - pos, "Peer Address: " MACSTR "\n", 577 MAC2STR(hapd->wps_stats.peer_addr)); 578 579 if (os_snprintf_error(end - pos, ret)) 580 return pos - buf; 581 pos += ret; 582 } 583 584 return pos - buf; 585} 586 587#endif /* CONFIG_WPS */ 588 589#ifdef CONFIG_HS20 590 591static int hostapd_ctrl_iface_hs20_wnm_notif(struct hostapd_data *hapd, 592 const char *cmd) 593{ 594 u8 addr[ETH_ALEN]; 595 const char *url; 596 597 if (hwaddr_aton(cmd, addr)) 598 return -1; 599 url = cmd + 17; 600 if (*url == '\0') { 601 url = NULL; 602 } else { 603 if (*url != ' ') 604 return -1; 605 url++; 606 if (*url == '\0') 607 url = NULL; 608 } 609 610 return hs20_send_wnm_notification(hapd, addr, 1, url); 611} 612 613 614static int hostapd_ctrl_iface_hs20_deauth_req(struct hostapd_data *hapd, 615 const char *cmd) 616{ 617 u8 addr[ETH_ALEN]; 618 int code, reauth_delay, ret; 619 const char *pos; 620 size_t url_len; 621 struct wpabuf *req; 622 623 /* <STA MAC Addr> <Code(0/1)> <Re-auth-Delay(sec)> [URL] */ 624 if (hwaddr_aton(cmd, addr)) 625 return -1; 626 627 pos = os_strchr(cmd, ' '); 628 if (pos == NULL) 629 return -1; 630 pos++; 631 code = atoi(pos); 632 633 pos = os_strchr(pos, ' '); 634 if (pos == NULL) 635 return -1; 636 pos++; 637 reauth_delay = atoi(pos); 638 639 url_len = 0; 640 pos = os_strchr(pos, ' '); 641 if (pos) { 642 pos++; 643 url_len = os_strlen(pos); 644 } 645 646 req = wpabuf_alloc(4 + url_len); 647 if (req == NULL) 648 return -1; 649 wpabuf_put_u8(req, code); 650 wpabuf_put_le16(req, reauth_delay); 651 wpabuf_put_u8(req, url_len); 652 if (pos) 653 wpabuf_put_data(req, pos, url_len); 654 655 wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification to " MACSTR 656 " to indicate imminent deauthentication (code=%d " 657 "reauth_delay=%d)", MAC2STR(addr), code, reauth_delay); 658 ret = hs20_send_wnm_notification_deauth_req(hapd, addr, req); 659 wpabuf_free(req); 660 return ret; 661} 662 663#endif /* CONFIG_HS20 */ 664 665 666#ifdef CONFIG_INTERWORKING 667 668static int hostapd_ctrl_iface_set_qos_map_set(struct hostapd_data *hapd, 669 const char *cmd) 670{ 671 u8 qos_map_set[16 + 2 * 21], count = 0; 672 const char *pos = cmd; 673 int val, ret; 674 675 for (;;) { 676 if (count == sizeof(qos_map_set)) { 677 wpa_printf(MSG_ERROR, "Too many qos_map_set parameters"); 678 return -1; 679 } 680 681 val = atoi(pos); 682 if (val < 0 || val > 255) { 683 wpa_printf(MSG_INFO, "Invalid QoS Map Set"); 684 return -1; 685 } 686 687 qos_map_set[count++] = val; 688 pos = os_strchr(pos, ','); 689 if (!pos) 690 break; 691 pos++; 692 } 693 694 if (count < 16 || count & 1) { 695 wpa_printf(MSG_INFO, "Invalid QoS Map Set"); 696 return -1; 697 } 698 699 ret = hostapd_drv_set_qos_map(hapd, qos_map_set, count); 700 if (ret) { 701 wpa_printf(MSG_INFO, "Failed to set QoS Map Set"); 702 return -1; 703 } 704 705 os_memcpy(hapd->conf->qos_map_set, qos_map_set, count); 706 hapd->conf->qos_map_set_len = count; 707 708 return 0; 709} 710 711 712static int hostapd_ctrl_iface_send_qos_map_conf(struct hostapd_data *hapd, 713 const char *cmd) 714{ 715 u8 addr[ETH_ALEN]; 716 struct sta_info *sta; 717 struct wpabuf *buf; 718 u8 *qos_map_set = hapd->conf->qos_map_set; 719 u8 qos_map_set_len = hapd->conf->qos_map_set_len; 720 int ret; 721 722 if (!qos_map_set_len) { 723 wpa_printf(MSG_INFO, "QoS Map Set is not set"); 724 return -1; 725 } 726 727 if (hwaddr_aton(cmd, addr)) 728 return -1; 729 730 sta = ap_get_sta(hapd, addr); 731 if (sta == NULL) { 732 wpa_printf(MSG_DEBUG, "Station " MACSTR " not found " 733 "for QoS Map Configuration message", 734 MAC2STR(addr)); 735 return -1; 736 } 737 738 if (!sta->qos_map_enabled) { 739 wpa_printf(MSG_DEBUG, "Station " MACSTR " did not indicate " 740 "support for QoS Map", MAC2STR(addr)); 741 return -1; 742 } 743 744 buf = wpabuf_alloc(2 + 2 + qos_map_set_len); 745 if (buf == NULL) 746 return -1; 747 748 wpabuf_put_u8(buf, WLAN_ACTION_QOS); 749 wpabuf_put_u8(buf, QOS_QOS_MAP_CONFIG); 750 751 /* QoS Map Set Element */ 752 wpabuf_put_u8(buf, WLAN_EID_QOS_MAP_SET); 753 wpabuf_put_u8(buf, qos_map_set_len); 754 wpabuf_put_data(buf, qos_map_set, qos_map_set_len); 755 756 ret = hostapd_drv_send_action(hapd, hapd->iface->freq, 0, addr, 757 wpabuf_head(buf), wpabuf_len(buf)); 758 wpabuf_free(buf); 759 760 return ret; 761} 762 763#endif /* CONFIG_INTERWORKING */ 764 765 766#ifdef CONFIG_WNM 767 768static int hostapd_ctrl_iface_disassoc_imminent(struct hostapd_data *hapd, 769 const char *cmd) 770{ 771 u8 addr[ETH_ALEN]; 772 int disassoc_timer; 773 struct sta_info *sta; 774 775 if (hwaddr_aton(cmd, addr)) 776 return -1; 777 if (cmd[17] != ' ') 778 return -1; 779 disassoc_timer = atoi(cmd + 17); 780 781 sta = ap_get_sta(hapd, addr); 782 if (sta == NULL) { 783 wpa_printf(MSG_DEBUG, "Station " MACSTR 784 " not found for disassociation imminent message", 785 MAC2STR(addr)); 786 return -1; 787 } 788 789 return wnm_send_disassoc_imminent(hapd, sta, disassoc_timer); 790} 791 792 793static int hostapd_ctrl_iface_ess_disassoc(struct hostapd_data *hapd, 794 const char *cmd) 795{ 796 u8 addr[ETH_ALEN]; 797 const char *url, *timerstr; 798 int disassoc_timer; 799 struct sta_info *sta; 800 801 if (hwaddr_aton(cmd, addr)) 802 return -1; 803 804 sta = ap_get_sta(hapd, addr); 805 if (sta == NULL) { 806 wpa_printf(MSG_DEBUG, "Station " MACSTR 807 " not found for ESS disassociation imminent message", 808 MAC2STR(addr)); 809 return -1; 810 } 811 812 timerstr = cmd + 17; 813 if (*timerstr != ' ') 814 return -1; 815 timerstr++; 816 disassoc_timer = atoi(timerstr); 817 if (disassoc_timer < 0 || disassoc_timer > 65535) 818 return -1; 819 820 url = os_strchr(timerstr, ' '); 821 if (url == NULL) 822 return -1; 823 url++; 824 825 return wnm_send_ess_disassoc_imminent(hapd, sta, url, disassoc_timer); 826} 827 828 829static int hostapd_ctrl_iface_bss_tm_req(struct hostapd_data *hapd, 830 const char *cmd) 831{ 832 u8 addr[ETH_ALEN]; 833 const char *pos, *end; 834 int disassoc_timer = 0; 835 struct sta_info *sta; 836 u8 req_mode = 0, valid_int = 0x01; 837 u8 bss_term_dur[12]; 838 char *url = NULL; 839 int ret; 840 u8 nei_rep[1000]; 841 u8 *nei_pos = nei_rep; 842 u8 mbo[10]; 843 size_t mbo_len = 0; 844 845 if (hwaddr_aton(cmd, addr)) { 846 wpa_printf(MSG_DEBUG, "Invalid STA MAC address"); 847 return -1; 848 } 849 850 sta = ap_get_sta(hapd, addr); 851 if (sta == NULL) { 852 wpa_printf(MSG_DEBUG, "Station " MACSTR 853 " not found for BSS TM Request message", 854 MAC2STR(addr)); 855 return -1; 856 } 857 858 pos = os_strstr(cmd, " disassoc_timer="); 859 if (pos) { 860 pos += 16; 861 disassoc_timer = atoi(pos); 862 if (disassoc_timer < 0 || disassoc_timer > 65535) { 863 wpa_printf(MSG_DEBUG, "Invalid disassoc_timer"); 864 return -1; 865 } 866 } 867 868 pos = os_strstr(cmd, " valid_int="); 869 if (pos) { 870 pos += 11; 871 valid_int = atoi(pos); 872 } 873 874 pos = os_strstr(cmd, " bss_term="); 875 if (pos) { 876 pos += 10; 877 req_mode |= WNM_BSS_TM_REQ_BSS_TERMINATION_INCLUDED; 878 /* TODO: TSF configurable/learnable */ 879 bss_term_dur[0] = 4; /* Subelement ID */ 880 bss_term_dur[1] = 10; /* Length */ 881 os_memset(bss_term_dur, 2, 8); 882 end = os_strchr(pos, ','); 883 if (end == NULL) { 884 wpa_printf(MSG_DEBUG, "Invalid bss_term data"); 885 return -1; 886 } 887 end++; 888 WPA_PUT_LE16(&bss_term_dur[10], atoi(end)); 889 } 890 891 892 /* 893 * BSS Transition Candidate List Entries - Neighbor Report elements 894 * neighbor=<BSSID>,<BSSID Information>,<Operating Class>, 895 * <Channel Number>,<PHY Type>[,<hexdump of Optional Subelements>] 896 */ 897 pos = cmd; 898 while (pos) { 899 u8 *nei_start; 900 long int val; 901 char *endptr, *tmp; 902 903 pos = os_strstr(pos, " neighbor="); 904 if (!pos) 905 break; 906 if (nei_pos + 15 > nei_rep + sizeof(nei_rep)) { 907 wpa_printf(MSG_DEBUG, 908 "Not enough room for additional neighbor"); 909 return -1; 910 } 911 pos += 10; 912 913 nei_start = nei_pos; 914 *nei_pos++ = WLAN_EID_NEIGHBOR_REPORT; 915 nei_pos++; /* length to be filled in */ 916 917 if (hwaddr_aton(pos, nei_pos)) { 918 wpa_printf(MSG_DEBUG, "Invalid BSSID"); 919 return -1; 920 } 921 nei_pos += ETH_ALEN; 922 pos += 17; 923 if (*pos != ',') { 924 wpa_printf(MSG_DEBUG, "Missing BSSID Information"); 925 return -1; 926 } 927 pos++; 928 929 val = strtol(pos, &endptr, 0); 930 WPA_PUT_LE32(nei_pos, val); 931 nei_pos += 4; 932 if (*endptr != ',') { 933 wpa_printf(MSG_DEBUG, "Missing Operating Class"); 934 return -1; 935 } 936 pos = endptr + 1; 937 938 *nei_pos++ = atoi(pos); /* Operating Class */ 939 pos = os_strchr(pos, ','); 940 if (pos == NULL) { 941 wpa_printf(MSG_DEBUG, "Missing Channel Number"); 942 return -1; 943 } 944 pos++; 945 946 *nei_pos++ = atoi(pos); /* Channel Number */ 947 pos = os_strchr(pos, ','); 948 if (pos == NULL) { 949 wpa_printf(MSG_DEBUG, "Missing PHY Type"); 950 return -1; 951 } 952 pos++; 953 954 *nei_pos++ = atoi(pos); /* PHY Type */ 955 end = os_strchr(pos, ' '); 956 tmp = os_strchr(pos, ','); 957 if (tmp && (!end || tmp < end)) { 958 /* Optional Subelements (hexdump) */ 959 size_t len; 960 961 pos = tmp + 1; 962 end = os_strchr(pos, ' '); 963 if (end) 964 len = end - pos; 965 else 966 len = os_strlen(pos); 967 if (nei_pos + len / 2 > nei_rep + sizeof(nei_rep)) { 968 wpa_printf(MSG_DEBUG, 969 "Not enough room for neighbor subelements"); 970 return -1; 971 } 972 if (len & 0x01 || 973 hexstr2bin(pos, nei_pos, len / 2) < 0) { 974 wpa_printf(MSG_DEBUG, 975 "Invalid neighbor subelement info"); 976 return -1; 977 } 978 nei_pos += len / 2; 979 pos = end; 980 } 981 982 nei_start[1] = nei_pos - nei_start - 2; 983 } 984 985 pos = os_strstr(cmd, " url="); 986 if (pos) { 987 size_t len; 988 pos += 5; 989 end = os_strchr(pos, ' '); 990 if (end) 991 len = end - pos; 992 else 993 len = os_strlen(pos); 994 url = os_malloc(len + 1); 995 if (url == NULL) 996 return -1; 997 os_memcpy(url, pos, len); 998 url[len] = '\0'; 999 req_mode |= WNM_BSS_TM_REQ_ESS_DISASSOC_IMMINENT; 1000 } 1001 1002 if (os_strstr(cmd, " pref=1")) 1003 req_mode |= WNM_BSS_TM_REQ_PREF_CAND_LIST_INCLUDED; 1004 if (os_strstr(cmd, " abridged=1")) 1005 req_mode |= WNM_BSS_TM_REQ_ABRIDGED; 1006 if (os_strstr(cmd, " disassoc_imminent=1")) 1007 req_mode |= WNM_BSS_TM_REQ_DISASSOC_IMMINENT; 1008 1009#ifdef CONFIG_MBO 1010 pos = os_strstr(cmd, "mbo="); 1011 if (pos) { 1012 unsigned int mbo_reason, cell_pref, reassoc_delay; 1013 u8 *mbo_pos = mbo; 1014 1015 ret = sscanf(pos, "mbo=%u:%u:%u", &mbo_reason, 1016 &reassoc_delay, &cell_pref); 1017 if (ret != 3) { 1018 wpa_printf(MSG_DEBUG, 1019 "MBO requires three arguments: mbo=<reason>:<reassoc_delay>:<cell_pref>"); 1020 return -1; 1021 } 1022 1023 if (mbo_reason > MBO_TRANSITION_REASON_PREMIUM_AP) { 1024 wpa_printf(MSG_DEBUG, 1025 "Invalid MBO transition reason code %u", 1026 mbo_reason); 1027 return -1; 1028 } 1029 1030 /* Valid values for Cellular preference are: 0, 1, 255 */ 1031 if (cell_pref != 0 && cell_pref != 1 && cell_pref != 255) { 1032 wpa_printf(MSG_DEBUG, 1033 "Invalid MBO cellular capability %u", 1034 cell_pref); 1035 return -1; 1036 } 1037 1038 if (reassoc_delay > 65535 || 1039 (reassoc_delay && 1040 !(req_mode & WNM_BSS_TM_REQ_DISASSOC_IMMINENT))) { 1041 wpa_printf(MSG_DEBUG, 1042 "MBO: Assoc retry delay is only valid in disassoc imminent mode"); 1043 return -1; 1044 } 1045 1046 *mbo_pos++ = MBO_ATTR_ID_TRANSITION_REASON; 1047 *mbo_pos++ = 1; 1048 *mbo_pos++ = mbo_reason; 1049 *mbo_pos++ = MBO_ATTR_ID_CELL_DATA_PREF; 1050 *mbo_pos++ = 1; 1051 *mbo_pos++ = cell_pref; 1052 1053 if (reassoc_delay) { 1054 *mbo_pos++ = MBO_ATTR_ID_ASSOC_RETRY_DELAY; 1055 *mbo_pos++ = 2; 1056 WPA_PUT_LE16(mbo_pos, reassoc_delay); 1057 mbo_pos += 2; 1058 } 1059 1060 mbo_len = mbo_pos - mbo; 1061 } 1062#endif /* CONFIG_MBO */ 1063 1064 ret = wnm_send_bss_tm_req(hapd, sta, req_mode, disassoc_timer, 1065 valid_int, bss_term_dur, url, 1066 nei_pos > nei_rep ? nei_rep : NULL, 1067 nei_pos - nei_rep, mbo_len ? mbo : NULL, 1068 mbo_len); 1069 os_free(url); 1070 return ret; 1071} 1072 1073#endif /* CONFIG_WNM */ 1074 1075 1076static int hostapd_ctrl_iface_get_key_mgmt(struct hostapd_data *hapd, 1077 char *buf, size_t buflen) 1078{ 1079 int ret = 0; 1080 char *pos, *end; 1081 1082 pos = buf; 1083 end = buf + buflen; 1084 1085 WPA_ASSERT(hapd->conf->wpa_key_mgmt); 1086 1087 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK) { 1088 ret = os_snprintf(pos, end - pos, "WPA-PSK "); 1089 if (os_snprintf_error(end - pos, ret)) 1090 return pos - buf; 1091 pos += ret; 1092 } 1093 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X) { 1094 ret = os_snprintf(pos, end - pos, "WPA-EAP "); 1095 if (os_snprintf_error(end - pos, ret)) 1096 return pos - buf; 1097 pos += ret; 1098 } 1099#ifdef CONFIG_IEEE80211R 1100 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_PSK) { 1101 ret = os_snprintf(pos, end - pos, "FT-PSK "); 1102 if (os_snprintf_error(end - pos, ret)) 1103 return pos - buf; 1104 pos += ret; 1105 } 1106 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) { 1107 ret = os_snprintf(pos, end - pos, "FT-EAP "); 1108 if (os_snprintf_error(end - pos, ret)) 1109 return pos - buf; 1110 pos += ret; 1111 } 1112#ifdef CONFIG_SAE 1113 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_SAE) { 1114 ret = os_snprintf(pos, end - pos, "FT-SAE "); 1115 if (os_snprintf_error(end - pos, ret)) 1116 return pos - buf; 1117 pos += ret; 1118 } 1119#endif /* CONFIG_SAE */ 1120#endif /* CONFIG_IEEE80211R */ 1121#ifdef CONFIG_IEEE80211W 1122 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK_SHA256) { 1123 ret = os_snprintf(pos, end - pos, "WPA-PSK-SHA256 "); 1124 if (os_snprintf_error(end - pos, ret)) 1125 return pos - buf; 1126 pos += ret; 1127 } 1128 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) { 1129 ret = os_snprintf(pos, end - pos, "WPA-EAP-SHA256 "); 1130 if (os_snprintf_error(end - pos, ret)) 1131 return pos - buf; 1132 pos += ret; 1133 } 1134#endif /* CONFIG_IEEE80211W */ 1135#ifdef CONFIG_SAE 1136 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_SAE) { 1137 ret = os_snprintf(pos, end - pos, "SAE "); 1138 if (os_snprintf_error(end - pos, ret)) 1139 return pos - buf; 1140 pos += ret; 1141 } 1142#endif /* CONFIG_SAE */ 1143 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) { 1144 ret = os_snprintf(pos, end - pos, "WPA-EAP-SUITE-B "); 1145 if (os_snprintf_error(end - pos, ret)) 1146 return pos - buf; 1147 pos += ret; 1148 } 1149 if (hapd->conf->wpa_key_mgmt & 1150 WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) { 1151 ret = os_snprintf(pos, end - pos, 1152 "WPA-EAP-SUITE-B-192 "); 1153 if (os_snprintf_error(end - pos, ret)) 1154 return pos - buf; 1155 pos += ret; 1156 } 1157 1158 if (pos > buf && *(pos - 1) == ' ') { 1159 *(pos - 1) = '\0'; 1160 pos--; 1161 } 1162 1163 return pos - buf; 1164} 1165 1166 1167static int hostapd_ctrl_iface_get_config(struct hostapd_data *hapd, 1168 char *buf, size_t buflen) 1169{ 1170 int ret; 1171 char *pos, *end; 1172 1173 pos = buf; 1174 end = buf + buflen; 1175 1176 ret = os_snprintf(pos, end - pos, "bssid=" MACSTR "\n" 1177 "ssid=%s\n", 1178 MAC2STR(hapd->own_addr), 1179 wpa_ssid_txt(hapd->conf->ssid.ssid, 1180 hapd->conf->ssid.ssid_len)); 1181 if (os_snprintf_error(end - pos, ret)) 1182 return pos - buf; 1183 pos += ret; 1184 1185#ifdef CONFIG_WPS 1186 ret = os_snprintf(pos, end - pos, "wps_state=%s\n", 1187 hapd->conf->wps_state == 0 ? "disabled" : 1188 (hapd->conf->wps_state == 1 ? "not configured" : 1189 "configured")); 1190 if (os_snprintf_error(end - pos, ret)) 1191 return pos - buf; 1192 pos += ret; 1193 1194 if (hapd->conf->wps_state && hapd->conf->wpa && 1195 hapd->conf->ssid.wpa_passphrase) { 1196 ret = os_snprintf(pos, end - pos, "passphrase=%s\n", 1197 hapd->conf->ssid.wpa_passphrase); 1198 if (os_snprintf_error(end - pos, ret)) 1199 return pos - buf; 1200 pos += ret; 1201 } 1202 1203 if (hapd->conf->wps_state && hapd->conf->wpa && 1204 hapd->conf->ssid.wpa_psk && 1205 hapd->conf->ssid.wpa_psk->group) { 1206 char hex[PMK_LEN * 2 + 1]; 1207 wpa_snprintf_hex(hex, sizeof(hex), 1208 hapd->conf->ssid.wpa_psk->psk, PMK_LEN); 1209 ret = os_snprintf(pos, end - pos, "psk=%s\n", hex); 1210 if (os_snprintf_error(end - pos, ret)) 1211 return pos - buf; 1212 pos += ret; 1213 } 1214#endif /* CONFIG_WPS */ 1215 1216 if (hapd->conf->wpa) { 1217 ret = os_snprintf(pos, end - pos, "wpa=%d\n", hapd->conf->wpa); 1218 if (os_snprintf_error(end - pos, ret)) 1219 return pos - buf; 1220 pos += ret; 1221 } 1222 1223 if (hapd->conf->wpa && hapd->conf->wpa_key_mgmt) { 1224 ret = os_snprintf(pos, end - pos, "key_mgmt="); 1225 if (os_snprintf_error(end - pos, ret)) 1226 return pos - buf; 1227 pos += ret; 1228 1229 pos += hostapd_ctrl_iface_get_key_mgmt(hapd, pos, end - pos); 1230 1231 ret = os_snprintf(pos, end - pos, "\n"); 1232 if (os_snprintf_error(end - pos, ret)) 1233 return pos - buf; 1234 pos += ret; 1235 } 1236 1237 if (hapd->conf->wpa) { 1238 ret = os_snprintf(pos, end - pos, "group_cipher=%s\n", 1239 wpa_cipher_txt(hapd->conf->wpa_group)); 1240 if (os_snprintf_error(end - pos, ret)) 1241 return pos - buf; 1242 pos += ret; 1243 } 1244 1245 if ((hapd->conf->wpa & WPA_PROTO_RSN) && hapd->conf->rsn_pairwise) { 1246 ret = os_snprintf(pos, end - pos, "rsn_pairwise_cipher="); 1247 if (os_snprintf_error(end - pos, ret)) 1248 return pos - buf; 1249 pos += ret; 1250 1251 ret = wpa_write_ciphers(pos, end, hapd->conf->rsn_pairwise, 1252 " "); 1253 if (ret < 0) 1254 return pos - buf; 1255 pos += ret; 1256 1257 ret = os_snprintf(pos, end - pos, "\n"); 1258 if (os_snprintf_error(end - pos, ret)) 1259 return pos - buf; 1260 pos += ret; 1261 } 1262 1263 if ((hapd->conf->wpa & WPA_PROTO_WPA) && hapd->conf->wpa_pairwise) { 1264 ret = os_snprintf(pos, end - pos, "wpa_pairwise_cipher="); 1265 if (os_snprintf_error(end - pos, ret)) 1266 return pos - buf; 1267 pos += ret; 1268 1269 ret = wpa_write_ciphers(pos, end, hapd->conf->wpa_pairwise, 1270 " "); 1271 if (ret < 0) 1272 return pos - buf; 1273 pos += ret; 1274 1275 ret = os_snprintf(pos, end - pos, "\n"); 1276 if (os_snprintf_error(end - pos, ret)) 1277 return pos - buf; 1278 pos += ret; 1279 } 1280 1281 return pos - buf; 1282} 1283 1284 1285static int hostapd_ctrl_iface_set(struct hostapd_data *hapd, char *cmd) 1286{ 1287 char *value; 1288 int ret = 0; 1289 1290 value = os_strchr(cmd, ' '); 1291 if (value == NULL) 1292 return -1; 1293 *value++ = '\0'; 1294 1295 wpa_printf(MSG_DEBUG, "CTRL_IFACE SET '%s'='%s'", cmd, value); 1296 if (0) { 1297#ifdef CONFIG_WPS_TESTING 1298 } else if (os_strcasecmp(cmd, "wps_version_number") == 0) { 1299 long int val; 1300 val = strtol(value, NULL, 0); 1301 if (val < 0 || val > 0xff) { 1302 ret = -1; 1303 wpa_printf(MSG_DEBUG, "WPS: Invalid " 1304 "wps_version_number %ld", val); 1305 } else { 1306 wps_version_number = val; 1307 wpa_printf(MSG_DEBUG, "WPS: Testing - force WPS " 1308 "version %u.%u", 1309 (wps_version_number & 0xf0) >> 4, 1310 wps_version_number & 0x0f); 1311 hostapd_wps_update_ie(hapd); 1312 } 1313 } else if (os_strcasecmp(cmd, "wps_testing_dummy_cred") == 0) { 1314 wps_testing_dummy_cred = atoi(value); 1315 wpa_printf(MSG_DEBUG, "WPS: Testing - dummy_cred=%d", 1316 wps_testing_dummy_cred); 1317 } else if (os_strcasecmp(cmd, "wps_corrupt_pkhash") == 0) { 1318 wps_corrupt_pkhash = atoi(value); 1319 wpa_printf(MSG_DEBUG, "WPS: Testing - wps_corrupt_pkhash=%d", 1320 wps_corrupt_pkhash); 1321#endif /* CONFIG_WPS_TESTING */ 1322#ifdef CONFIG_INTERWORKING 1323 } else if (os_strcasecmp(cmd, "gas_frag_limit") == 0) { 1324 int val = atoi(value); 1325 if (val <= 0) 1326 ret = -1; 1327 else 1328 hapd->gas_frag_limit = val; 1329#endif /* CONFIG_INTERWORKING */ 1330#ifdef CONFIG_TESTING_OPTIONS 1331 } else if (os_strcasecmp(cmd, "ext_mgmt_frame_handling") == 0) { 1332 hapd->ext_mgmt_frame_handling = atoi(value); 1333 } else if (os_strcasecmp(cmd, "ext_eapol_frame_io") == 0) { 1334 hapd->ext_eapol_frame_io = atoi(value); 1335#endif /* CONFIG_TESTING_OPTIONS */ 1336#ifdef CONFIG_MBO 1337 } else if (os_strcasecmp(cmd, "mbo_assoc_disallow") == 0) { 1338 int val; 1339 1340 if (!hapd->conf->mbo_enabled) 1341 return -1; 1342 1343 val = atoi(value); 1344 if (val < 0 || val > 1) 1345 return -1; 1346 1347 hapd->mbo_assoc_disallow = val; 1348 ieee802_11_update_beacons(hapd->iface); 1349 1350 /* 1351 * TODO: Need to configure drivers that do AP MLME offload with 1352 * disallowing station logic. 1353 */ 1354#endif /* CONFIG_MBO */ 1355 } else { 1356 struct sta_info *sta; 1357 struct vlan_description vlan_id; 1358 1359 ret = hostapd_set_iface(hapd->iconf, hapd->conf, cmd, value); 1360 if (ret) 1361 return ret; 1362 1363 if (os_strcasecmp(cmd, "deny_mac_file") == 0) { 1364 for (sta = hapd->sta_list; sta; sta = sta->next) { 1365 if (hostapd_maclist_found( 1366 hapd->conf->deny_mac, 1367 hapd->conf->num_deny_mac, sta->addr, 1368 &vlan_id) && 1369 (!vlan_id.notempty || 1370 !vlan_compare(&vlan_id, sta->vlan_desc))) 1371 ap_sta_disconnect( 1372 hapd, sta, sta->addr, 1373 WLAN_REASON_UNSPECIFIED); 1374 } 1375 } else if (hapd->conf->macaddr_acl == DENY_UNLESS_ACCEPTED && 1376 os_strcasecmp(cmd, "accept_mac_file") == 0) { 1377 for (sta = hapd->sta_list; sta; sta = sta->next) { 1378 if (!hostapd_maclist_found( 1379 hapd->conf->accept_mac, 1380 hapd->conf->num_accept_mac, 1381 sta->addr, &vlan_id) || 1382 (vlan_id.notempty && 1383 vlan_compare(&vlan_id, sta->vlan_desc))) 1384 ap_sta_disconnect( 1385 hapd, sta, sta->addr, 1386 WLAN_REASON_UNSPECIFIED); 1387 } 1388 } 1389 } 1390 1391 return ret; 1392} 1393 1394 1395static int hostapd_ctrl_iface_get(struct hostapd_data *hapd, char *cmd, 1396 char *buf, size_t buflen) 1397{ 1398 int res; 1399 1400 wpa_printf(MSG_DEBUG, "CTRL_IFACE GET '%s'", cmd); 1401 1402 if (os_strcmp(cmd, "version") == 0) { 1403 res = os_snprintf(buf, buflen, "%s", VERSION_STR); 1404 if (os_snprintf_error(buflen, res)) 1405 return -1; 1406 return res; 1407 } else if (os_strcmp(cmd, "tls_library") == 0) { 1408 res = tls_get_library_version(buf, buflen); 1409 if (os_snprintf_error(buflen, res)) 1410 return -1; 1411 return res; 1412 } 1413 1414 return -1; 1415} 1416 1417 1418static int hostapd_ctrl_iface_enable(struct hostapd_iface *iface) 1419{ 1420 if (hostapd_enable_iface(iface) < 0) { 1421 wpa_printf(MSG_ERROR, "Enabling of interface failed"); 1422 return -1; 1423 } 1424 return 0; 1425} 1426 1427 1428static int hostapd_ctrl_iface_reload(struct hostapd_iface *iface) 1429{ 1430 if (hostapd_reload_iface(iface) < 0) { 1431 wpa_printf(MSG_ERROR, "Reloading of interface failed"); 1432 return -1; 1433 } 1434 return 0; 1435} 1436 1437 1438static int hostapd_ctrl_iface_disable(struct hostapd_iface *iface) 1439{ 1440 if (hostapd_disable_iface(iface) < 0) { 1441 wpa_printf(MSG_ERROR, "Disabling of interface failed"); 1442 return -1; 1443 } 1444 return 0; 1445} 1446 1447 1448#ifdef CONFIG_TESTING_OPTIONS 1449 1450static int hostapd_ctrl_iface_radar(struct hostapd_data *hapd, char *cmd) 1451{ 1452 union wpa_event_data data; 1453 char *pos, *param; 1454 enum wpa_event_type event; 1455 1456 wpa_printf(MSG_DEBUG, "RADAR TEST: %s", cmd); 1457 1458 os_memset(&data, 0, sizeof(data)); 1459 1460 param = os_strchr(cmd, ' '); 1461 if (param == NULL) 1462 return -1; 1463 *param++ = '\0'; 1464 1465 if (os_strcmp(cmd, "DETECTED") == 0) 1466 event = EVENT_DFS_RADAR_DETECTED; 1467 else if (os_strcmp(cmd, "CAC-FINISHED") == 0) 1468 event = EVENT_DFS_CAC_FINISHED; 1469 else if (os_strcmp(cmd, "CAC-ABORTED") == 0) 1470 event = EVENT_DFS_CAC_ABORTED; 1471 else if (os_strcmp(cmd, "NOP-FINISHED") == 0) 1472 event = EVENT_DFS_NOP_FINISHED; 1473 else { 1474 wpa_printf(MSG_DEBUG, "Unsupported RADAR test command: %s", 1475 cmd); 1476 return -1; 1477 } 1478 1479 pos = os_strstr(param, "freq="); 1480 if (pos) 1481 data.dfs_event.freq = atoi(pos + 5); 1482 1483 pos = os_strstr(param, "ht_enabled=1"); 1484 if (pos) 1485 data.dfs_event.ht_enabled = 1; 1486 1487 pos = os_strstr(param, "chan_offset="); 1488 if (pos) 1489 data.dfs_event.chan_offset = atoi(pos + 12); 1490 1491 pos = os_strstr(param, "chan_width="); 1492 if (pos) 1493 data.dfs_event.chan_width = atoi(pos + 11); 1494 1495 pos = os_strstr(param, "cf1="); 1496 if (pos) 1497 data.dfs_event.cf1 = atoi(pos + 4); 1498 1499 pos = os_strstr(param, "cf2="); 1500 if (pos) 1501 data.dfs_event.cf2 = atoi(pos + 4); 1502 1503 wpa_supplicant_event(hapd, event, &data); 1504 1505 return 0; 1506} 1507 1508 1509static int hostapd_ctrl_iface_mgmt_tx(struct hostapd_data *hapd, char *cmd) 1510{ 1511 size_t len; 1512 u8 *buf; 1513 int res; 1514 1515 wpa_printf(MSG_DEBUG, "External MGMT TX: %s", cmd); 1516 1517 len = os_strlen(cmd); 1518 if (len & 1) 1519 return -1; 1520 len /= 2; 1521 1522 buf = os_malloc(len); 1523 if (buf == NULL) 1524 return -1; 1525 1526 if (hexstr2bin(cmd, buf, len) < 0) { 1527 os_free(buf); 1528 return -1; 1529 } 1530 1531 res = hostapd_drv_send_mlme(hapd, buf, len, 0); 1532 os_free(buf); 1533 return res; 1534} 1535 1536 1537static int hostapd_ctrl_iface_eapol_rx(struct hostapd_data *hapd, char *cmd) 1538{ 1539 char *pos; 1540 u8 src[ETH_ALEN], *buf; 1541 int used; 1542 size_t len; 1543 1544 wpa_printf(MSG_DEBUG, "External EAPOL RX: %s", cmd); 1545 1546 pos = cmd; 1547 used = hwaddr_aton2(pos, src); 1548 if (used < 0) 1549 return -1; 1550 pos += used; 1551 while (*pos == ' ') 1552 pos++; 1553 1554 len = os_strlen(pos); 1555 if (len & 1) 1556 return -1; 1557 len /= 2; 1558 1559 buf = os_malloc(len); 1560 if (buf == NULL) 1561 return -1; 1562 1563 if (hexstr2bin(pos, buf, len) < 0) { 1564 os_free(buf); 1565 return -1; 1566 } 1567 1568 ieee802_1x_receive(hapd, src, buf, len); 1569 os_free(buf); 1570 1571 return 0; 1572} 1573 1574 1575static u16 ipv4_hdr_checksum(const void *buf, size_t len) 1576{ 1577 size_t i; 1578 u32 sum = 0; 1579 const u16 *pos = buf; 1580 1581 for (i = 0; i < len / 2; i++) 1582 sum += *pos++; 1583 1584 while (sum >> 16) 1585 sum = (sum & 0xffff) + (sum >> 16); 1586 1587 return sum ^ 0xffff; 1588} 1589 1590 1591#define HWSIM_PACKETLEN 1500 1592#define HWSIM_IP_LEN (HWSIM_PACKETLEN - sizeof(struct ether_header)) 1593 1594static void hostapd_data_test_rx(void *ctx, const u8 *src_addr, const u8 *buf, 1595 size_t len) 1596{ 1597 struct hostapd_data *hapd = ctx; 1598 const struct ether_header *eth; 1599 struct iphdr ip; 1600 const u8 *pos; 1601 unsigned int i; 1602 1603 if (len != HWSIM_PACKETLEN) 1604 return; 1605 1606 eth = (const struct ether_header *) buf; 1607 os_memcpy(&ip, eth + 1, sizeof(ip)); 1608 pos = &buf[sizeof(*eth) + sizeof(ip)]; 1609 1610 if (ip.ihl != 5 || ip.version != 4 || 1611 ntohs(ip.tot_len) != HWSIM_IP_LEN) 1612 return; 1613 1614 for (i = 0; i < HWSIM_IP_LEN - sizeof(ip); i++) { 1615 if (*pos != (u8) i) 1616 return; 1617 pos++; 1618 } 1619 1620 wpa_msg(hapd->msg_ctx, MSG_INFO, "DATA-TEST-RX " MACSTR " " MACSTR, 1621 MAC2STR(eth->ether_dhost), MAC2STR(eth->ether_shost)); 1622} 1623 1624 1625static int hostapd_ctrl_iface_data_test_config(struct hostapd_data *hapd, 1626 char *cmd) 1627{ 1628 int enabled = atoi(cmd); 1629 char *pos; 1630 const char *ifname; 1631 1632 if (!enabled) { 1633 if (hapd->l2_test) { 1634 l2_packet_deinit(hapd->l2_test); 1635 hapd->l2_test = NULL; 1636 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, 1637 "test data: Disabled"); 1638 } 1639 return 0; 1640 } 1641 1642 if (hapd->l2_test) 1643 return 0; 1644 1645 pos = os_strstr(cmd, " ifname="); 1646 if (pos) 1647 ifname = pos + 8; 1648 else 1649 ifname = hapd->conf->iface; 1650 1651 hapd->l2_test = l2_packet_init(ifname, hapd->own_addr, 1652 ETHERTYPE_IP, hostapd_data_test_rx, 1653 hapd, 1); 1654 if (hapd->l2_test == NULL) 1655 return -1; 1656 1657 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: Enabled"); 1658 1659 return 0; 1660} 1661 1662 1663static int hostapd_ctrl_iface_data_test_tx(struct hostapd_data *hapd, char *cmd) 1664{ 1665 u8 dst[ETH_ALEN], src[ETH_ALEN]; 1666 char *pos; 1667 int used; 1668 long int val; 1669 u8 tos; 1670 u8 buf[2 + HWSIM_PACKETLEN]; 1671 struct ether_header *eth; 1672 struct iphdr *ip; 1673 u8 *dpos; 1674 unsigned int i; 1675 1676 if (hapd->l2_test == NULL) 1677 return -1; 1678 1679 /* format: <dst> <src> <tos> */ 1680 1681 pos = cmd; 1682 used = hwaddr_aton2(pos, dst); 1683 if (used < 0) 1684 return -1; 1685 pos += used; 1686 while (*pos == ' ') 1687 pos++; 1688 used = hwaddr_aton2(pos, src); 1689 if (used < 0) 1690 return -1; 1691 pos += used; 1692 1693 val = strtol(pos, NULL, 0); 1694 if (val < 0 || val > 0xff) 1695 return -1; 1696 tos = val; 1697 1698 eth = (struct ether_header *) &buf[2]; 1699 os_memcpy(eth->ether_dhost, dst, ETH_ALEN); 1700 os_memcpy(eth->ether_shost, src, ETH_ALEN); 1701 eth->ether_type = htons(ETHERTYPE_IP); 1702 ip = (struct iphdr *) (eth + 1); 1703 os_memset(ip, 0, sizeof(*ip)); 1704 ip->ihl = 5; 1705 ip->version = 4; 1706 ip->ttl = 64; 1707 ip->tos = tos; 1708 ip->tot_len = htons(HWSIM_IP_LEN); 1709 ip->protocol = 1; 1710 ip->saddr = htonl(192U << 24 | 168 << 16 | 1 << 8 | 1); 1711 ip->daddr = htonl(192U << 24 | 168 << 16 | 1 << 8 | 2); 1712 ip->check = ipv4_hdr_checksum(ip, sizeof(*ip)); 1713 dpos = (u8 *) (ip + 1); 1714 for (i = 0; i < HWSIM_IP_LEN - sizeof(*ip); i++) 1715 *dpos++ = i; 1716 1717 if (l2_packet_send(hapd->l2_test, dst, ETHERTYPE_IP, &buf[2], 1718 HWSIM_PACKETLEN) < 0) 1719 return -1; 1720 1721 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: TX dst=" MACSTR 1722 " src=" MACSTR " tos=0x%x", MAC2STR(dst), MAC2STR(src), tos); 1723 1724 return 0; 1725} 1726 1727 1728static int hostapd_ctrl_iface_data_test_frame(struct hostapd_data *hapd, 1729 char *cmd) 1730{ 1731 u8 *buf; 1732 struct ether_header *eth; 1733 struct l2_packet_data *l2 = NULL; 1734 size_t len; 1735 u16 ethertype; 1736 int res = -1; 1737 const char *ifname = hapd->conf->iface; 1738 1739 if (os_strncmp(cmd, "ifname=", 7) == 0) { 1740 cmd += 7; 1741 ifname = cmd; 1742 cmd = os_strchr(cmd, ' '); 1743 if (cmd == NULL) 1744 return -1; 1745 *cmd++ = '\0'; 1746 } 1747 1748 len = os_strlen(cmd); 1749 if (len & 1 || len < ETH_HLEN * 2) 1750 return -1; 1751 len /= 2; 1752 1753 buf = os_malloc(len); 1754 if (buf == NULL) 1755 return -1; 1756 1757 if (hexstr2bin(cmd, buf, len) < 0) 1758 goto done; 1759 1760 eth = (struct ether_header *) buf; 1761 ethertype = ntohs(eth->ether_type); 1762 1763 l2 = l2_packet_init(ifname, hapd->own_addr, ethertype, 1764 hostapd_data_test_rx, hapd, 1); 1765 if (l2 == NULL) 1766 goto done; 1767 1768 res = l2_packet_send(l2, eth->ether_dhost, ethertype, buf, len); 1769 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: TX frame res=%d", res); 1770done: 1771 if (l2) 1772 l2_packet_deinit(l2); 1773 os_free(buf); 1774 1775 return res < 0 ? -1 : 0; 1776} 1777 1778 1779static int hostapd_ctrl_test_alloc_fail(struct hostapd_data *hapd, char *cmd) 1780{ 1781#ifdef WPA_TRACE_BFD 1782 char *pos; 1783 1784 wpa_trace_fail_after = atoi(cmd); 1785 pos = os_strchr(cmd, ':'); 1786 if (pos) { 1787 pos++; 1788 os_strlcpy(wpa_trace_fail_func, pos, 1789 sizeof(wpa_trace_fail_func)); 1790 } else { 1791 wpa_trace_fail_after = 0; 1792 } 1793 1794 return 0; 1795#else /* WPA_TRACE_BFD */ 1796 return -1; 1797#endif /* WPA_TRACE_BFD */ 1798} 1799 1800 1801static int hostapd_ctrl_get_alloc_fail(struct hostapd_data *hapd, 1802 char *buf, size_t buflen) 1803{ 1804#ifdef WPA_TRACE_BFD 1805 return os_snprintf(buf, buflen, "%u:%s", wpa_trace_fail_after, 1806 wpa_trace_fail_func); 1807#else /* WPA_TRACE_BFD */ 1808 return -1; 1809#endif /* WPA_TRACE_BFD */ 1810} 1811 1812 1813static int hostapd_ctrl_test_fail(struct hostapd_data *hapd, char *cmd) 1814{ 1815#ifdef WPA_TRACE_BFD 1816 char *pos; 1817 1818 wpa_trace_test_fail_after = atoi(cmd); 1819 pos = os_strchr(cmd, ':'); 1820 if (pos) { 1821 pos++; 1822 os_strlcpy(wpa_trace_test_fail_func, pos, 1823 sizeof(wpa_trace_test_fail_func)); 1824 } else { 1825 wpa_trace_test_fail_after = 0; 1826 } 1827 1828 return 0; 1829#else /* WPA_TRACE_BFD */ 1830 return -1; 1831#endif /* WPA_TRACE_BFD */ 1832} 1833 1834 1835static int hostapd_ctrl_get_fail(struct hostapd_data *hapd, 1836 char *buf, size_t buflen) 1837{ 1838#ifdef WPA_TRACE_BFD 1839 return os_snprintf(buf, buflen, "%u:%s", wpa_trace_test_fail_after, 1840 wpa_trace_test_fail_func); 1841#else /* WPA_TRACE_BFD */ 1842 return -1; 1843#endif /* WPA_TRACE_BFD */ 1844} 1845 1846#endif /* CONFIG_TESTING_OPTIONS */ 1847 1848 1849static int hostapd_ctrl_iface_chan_switch(struct hostapd_iface *iface, 1850 char *pos) 1851{ 1852#ifdef NEED_AP_MLME 1853 struct csa_settings settings; 1854 int ret; 1855 unsigned int i; 1856 1857 ret = hostapd_parse_csa_settings(pos, &settings); 1858 if (ret) 1859 return ret; 1860 1861 for (i = 0; i < iface->num_bss; i++) { 1862 ret = hostapd_switch_channel(iface->bss[i], &settings); 1863 if (ret) { 1864 /* FIX: What do we do if CSA fails in the middle of 1865 * submitting multi-BSS CSA requests? */ 1866 return ret; 1867 } 1868 } 1869 1870 return 0; 1871#else /* NEED_AP_MLME */ 1872 return -1; 1873#endif /* NEED_AP_MLME */ 1874} 1875 1876 1877static int hostapd_ctrl_iface_mib(struct hostapd_data *hapd, char *reply, 1878 int reply_size, const char *param) 1879{ 1880#ifdef RADIUS_SERVER 1881 if (os_strcmp(param, "radius_server") == 0) { 1882 return radius_server_get_mib(hapd->radius_srv, reply, 1883 reply_size); 1884 } 1885#endif /* RADIUS_SERVER */ 1886 return -1; 1887} 1888 1889 1890static int hostapd_ctrl_iface_vendor(struct hostapd_data *hapd, char *cmd, 1891 char *buf, size_t buflen) 1892{ 1893 int ret; 1894 char *pos; 1895 u8 *data = NULL; 1896 unsigned int vendor_id, subcmd; 1897 struct wpabuf *reply; 1898 size_t data_len = 0; 1899 1900 /* cmd: <vendor id> <subcommand id> [<hex formatted data>] */ 1901 vendor_id = strtoul(cmd, &pos, 16); 1902 if (!isblank((unsigned char) *pos)) 1903 return -EINVAL; 1904 1905 subcmd = strtoul(pos, &pos, 10); 1906 1907 if (*pos != '\0') { 1908 if (!isblank((unsigned char) *pos++)) 1909 return -EINVAL; 1910 data_len = os_strlen(pos); 1911 } 1912 1913 if (data_len) { 1914 data_len /= 2; 1915 data = os_malloc(data_len); 1916 if (!data) 1917 return -ENOBUFS; 1918 1919 if (hexstr2bin(pos, data, data_len)) { 1920 wpa_printf(MSG_DEBUG, 1921 "Vendor command: wrong parameter format"); 1922 os_free(data); 1923 return -EINVAL; 1924 } 1925 } 1926 1927 reply = wpabuf_alloc((buflen - 1) / 2); 1928 if (!reply) { 1929 os_free(data); 1930 return -ENOBUFS; 1931 } 1932 1933 ret = hostapd_drv_vendor_cmd(hapd, vendor_id, subcmd, data, data_len, 1934 reply); 1935 1936 if (ret == 0) 1937 ret = wpa_snprintf_hex(buf, buflen, wpabuf_head_u8(reply), 1938 wpabuf_len(reply)); 1939 1940 wpabuf_free(reply); 1941 os_free(data); 1942 1943 return ret; 1944} 1945 1946 1947static int hostapd_ctrl_iface_eapol_reauth(struct hostapd_data *hapd, 1948 const char *cmd) 1949{ 1950 u8 addr[ETH_ALEN]; 1951 struct sta_info *sta; 1952 1953 if (hwaddr_aton(cmd, addr)) 1954 return -1; 1955 1956 sta = ap_get_sta(hapd, addr); 1957 if (!sta || !sta->eapol_sm) 1958 return -1; 1959 1960 eapol_auth_reauthenticate(sta->eapol_sm); 1961 return 0; 1962} 1963 1964 1965static int hostapd_ctrl_iface_eapol_set(struct hostapd_data *hapd, char *cmd) 1966{ 1967 u8 addr[ETH_ALEN]; 1968 struct sta_info *sta; 1969 char *pos = cmd, *param; 1970 1971 if (hwaddr_aton(pos, addr) || pos[17] != ' ') 1972 return -1; 1973 pos += 18; 1974 param = pos; 1975 pos = os_strchr(pos, ' '); 1976 if (!pos) 1977 return -1; 1978 *pos++ = '\0'; 1979 1980 sta = ap_get_sta(hapd, addr); 1981 if (!sta || !sta->eapol_sm) 1982 return -1; 1983 1984 return eapol_auth_set_conf(sta->eapol_sm, param, pos); 1985} 1986 1987 1988static int hostapd_ctrl_iface_log_level(struct hostapd_data *hapd, char *cmd, 1989 char *buf, size_t buflen) 1990{ 1991 char *pos, *end, *stamp; 1992 int ret; 1993 1994 /* cmd: "LOG_LEVEL [<level>]" */ 1995 if (*cmd == '\0') { 1996 pos = buf; 1997 end = buf + buflen; 1998 ret = os_snprintf(pos, end - pos, "Current level: %s\n" 1999 "Timestamp: %d\n", 2000 debug_level_str(wpa_debug_level), 2001 wpa_debug_timestamp); 2002 if (os_snprintf_error(end - pos, ret)) 2003 ret = 0; 2004 2005 return ret; 2006 } 2007 2008 while (*cmd == ' ') 2009 cmd++; 2010 2011 stamp = os_strchr(cmd, ' '); 2012 if (stamp) { 2013 *stamp++ = '\0'; 2014 while (*stamp == ' ') { 2015 stamp++; 2016 } 2017 } 2018 2019 if (os_strlen(cmd)) { 2020 int level = str_to_debug_level(cmd); 2021 if (level < 0) 2022 return -1; 2023 wpa_debug_level = level; 2024 } 2025 2026 if (stamp && os_strlen(stamp)) 2027 wpa_debug_timestamp = atoi(stamp); 2028 2029 os_memcpy(buf, "OK\n", 3); 2030 return 3; 2031} 2032 2033 2034#ifdef NEED_AP_MLME 2035static int hostapd_ctrl_iface_track_sta_list(struct hostapd_data *hapd, 2036 char *buf, size_t buflen) 2037{ 2038 struct hostapd_iface *iface = hapd->iface; 2039 char *pos, *end; 2040 struct hostapd_sta_info *info; 2041 struct os_reltime now; 2042 2043 if (!iface->num_sta_seen) 2044 return 0; 2045 2046 sta_track_expire(iface, 0); 2047 2048 pos = buf; 2049 end = buf + buflen; 2050 2051 os_get_reltime(&now); 2052 dl_list_for_each_reverse(info, &iface->sta_seen, 2053 struct hostapd_sta_info, list) { 2054 struct os_reltime age; 2055 int ret; 2056 2057 os_reltime_sub(&now, &info->last_seen, &age); 2058 ret = os_snprintf(pos, end - pos, MACSTR " %u\n", 2059 MAC2STR(info->addr), (unsigned int) age.sec); 2060 if (os_snprintf_error(end - pos, ret)) 2061 break; 2062 pos += ret; 2063 } 2064 2065 return pos - buf; 2066} 2067#endif /* NEED_AP_MLME */ 2068 2069 2070static int hostapd_ctrl_iface_req_lci(struct hostapd_data *hapd, 2071 const char *cmd) 2072{ 2073 u8 addr[ETH_ALEN]; 2074 2075 if (hwaddr_aton(cmd, addr)) { 2076 wpa_printf(MSG_INFO, "CTRL: REQ_LCI: Invalid MAC address"); 2077 return -1; 2078 } 2079 2080 return hostapd_send_lci_req(hapd, addr); 2081} 2082 2083 2084static int hostapd_ctrl_iface_req_range(struct hostapd_data *hapd, char *cmd) 2085{ 2086 u8 addr[ETH_ALEN]; 2087 char *token, *context = NULL; 2088 int random_interval, min_ap; 2089 u8 responders[ETH_ALEN * RRM_RANGE_REQ_MAX_RESPONDERS]; 2090 unsigned int n_responders; 2091 2092 token = str_token(cmd, " ", &context); 2093 if (!token || hwaddr_aton(token, addr)) { 2094 wpa_printf(MSG_INFO, 2095 "CTRL: REQ_RANGE - Bad destination address"); 2096 return -1; 2097 } 2098 2099 token = str_token(cmd, " ", &context); 2100 if (!token) 2101 return -1; 2102 2103 random_interval = atoi(token); 2104 if (random_interval < 0 || random_interval > 0xffff) 2105 return -1; 2106 2107 token = str_token(cmd, " ", &context); 2108 if (!token) 2109 return -1; 2110 2111 min_ap = atoi(token); 2112 if (min_ap <= 0 || min_ap > WLAN_RRM_RANGE_REQ_MAX_MIN_AP) 2113 return -1; 2114 2115 n_responders = 0; 2116 while ((token = str_token(cmd, " ", &context))) { 2117 if (n_responders == RRM_RANGE_REQ_MAX_RESPONDERS) { 2118 wpa_printf(MSG_INFO, 2119 "CTRL: REQ_RANGE: Too many responders"); 2120 return -1; 2121 } 2122 2123 if (hwaddr_aton(token, responders + n_responders * ETH_ALEN)) { 2124 wpa_printf(MSG_INFO, 2125 "CTRL: REQ_RANGE: Bad responder address"); 2126 return -1; 2127 } 2128 2129 n_responders++; 2130 } 2131 2132 if (!n_responders) { 2133 wpa_printf(MSG_INFO, 2134 "CTRL: REQ_RANGE - No FTM responder address"); 2135 return -1; 2136 } 2137 2138 return hostapd_send_range_req(hapd, addr, random_interval, min_ap, 2139 responders, n_responders); 2140} 2141 2142 2143static int hostapd_ctrl_iface_set_neighbor(struct hostapd_data *hapd, char *buf) 2144{ 2145 struct wpa_ssid_value ssid; 2146 u8 bssid[ETH_ALEN]; 2147 struct wpabuf *nr, *lci = NULL, *civic = NULL; 2148 char *tmp; 2149 int ret; 2150 2151 if (!(hapd->conf->radio_measurements[0] & 2152 WLAN_RRM_CAPS_NEIGHBOR_REPORT)) { 2153 wpa_printf(MSG_ERROR, 2154 "CTRL: SET_NEIGHBOR: Neighbor report is not enabled"); 2155 return -1; 2156 } 2157 2158 if (hwaddr_aton(buf, bssid)) { 2159 wpa_printf(MSG_ERROR, "CTRL: SET_NEIGHBOR: Bad BSSID"); 2160 return -1; 2161 } 2162 2163 tmp = os_strstr(buf, "ssid="); 2164 if (!tmp || ssid_parse(tmp + 5, &ssid)) { 2165 wpa_printf(MSG_ERROR, 2166 "CTRL: SET_NEIGHBOR: Bad or missing SSID"); 2167 return -1; 2168 } 2169 buf = os_strchr(tmp + 6, tmp[5] == '"' ? '"' : ' '); 2170 if (!buf) 2171 return -1; 2172 2173 tmp = os_strstr(buf, "nr="); 2174 if (!tmp) { 2175 wpa_printf(MSG_ERROR, 2176 "CTRL: SET_NEIGHBOR: Missing Neighbor Report element"); 2177 return -1; 2178 } 2179 2180 buf = os_strchr(tmp, ' '); 2181 if (buf) 2182 *buf++ = '\0'; 2183 2184 nr = wpabuf_parse_bin(tmp + 3); 2185 if (!nr) { 2186 wpa_printf(MSG_ERROR, 2187 "CTRL: SET_NEIGHBOR: Bad Neighbor Report element"); 2188 return -1; 2189 } 2190 2191 if (!buf) 2192 goto set; 2193 2194 tmp = os_strstr(buf, "lci="); 2195 if (tmp) { 2196 buf = os_strchr(tmp, ' '); 2197 if (buf) 2198 *buf++ = '\0'; 2199 lci = wpabuf_parse_bin(tmp + 4); 2200 if (!lci) { 2201 wpa_printf(MSG_ERROR, 2202 "CTRL: SET_NEIGHBOR: Bad LCI subelement"); 2203 wpabuf_free(nr); 2204 return -1; 2205 } 2206 } 2207 2208 if (!buf) 2209 goto set; 2210 2211 tmp = os_strstr(buf, "civic="); 2212 if (tmp) { 2213 buf = os_strchr(tmp, ' '); 2214 if (buf) 2215 *buf++ = '\0'; 2216 civic = wpabuf_parse_bin(tmp + 6); 2217 if (!civic) { 2218 wpa_printf(MSG_ERROR, 2219 "CTRL: SET_NEIGHBOR: Bad civic subelement"); 2220 wpabuf_free(nr); 2221 wpabuf_free(lci); 2222 return -1; 2223 } 2224 } 2225 2226set: 2227 ret = hostapd_neighbor_set(hapd, bssid, &ssid, nr, lci, civic); 2228 2229 wpabuf_free(nr); 2230 wpabuf_free(lci); 2231 wpabuf_free(civic); 2232 2233 return ret; 2234} 2235 2236 2237static int hostapd_ctrl_iface_remove_neighbor(struct hostapd_data *hapd, 2238 char *buf) 2239{ 2240 struct wpa_ssid_value ssid; 2241 u8 bssid[ETH_ALEN]; 2242 char *tmp; 2243 2244 if (hwaddr_aton(buf, bssid)) { 2245 wpa_printf(MSG_ERROR, "CTRL: REMOVE_NEIGHBOR: Bad BSSID"); 2246 return -1; 2247 } 2248 2249 tmp = os_strstr(buf, "ssid="); 2250 if (!tmp || ssid_parse(tmp + 5, &ssid)) { 2251 wpa_printf(MSG_ERROR, 2252 "CTRL: REMOVE_NEIGHBORr: Bad or missing SSID"); 2253 return -1; 2254 } 2255 2256 return hostapd_neighbor_remove(hapd, bssid, &ssid); 2257} 2258 2259 2260static int hostapd_ctrl_driver_flags(struct hostapd_iface *iface, char *buf, 2261 size_t buflen) 2262{ 2263 int ret, i; 2264 char *pos, *end; 2265 2266 ret = os_snprintf(buf, buflen, "%016llX:\n", 2267 (long long unsigned) iface->drv_flags); 2268 if (os_snprintf_error(buflen, ret)) 2269 return -1; 2270 2271 pos = buf + ret; 2272 end = buf + buflen; 2273 2274 for (i = 0; i < 64; i++) { 2275 if (iface->drv_flags & (1LLU << i)) { 2276 ret = os_snprintf(pos, end - pos, "%s\n", 2277 driver_flag_to_string(1LLU << i)); 2278 if (os_snprintf_error(end - pos, ret)) 2279 return -1; 2280 pos += ret; 2281 } 2282 } 2283 2284 return pos - buf; 2285} 2286 2287 2288static int hostapd_ctrl_iface_receive_process(struct hostapd_data *hapd, 2289 char *buf, char *reply, 2290 int reply_size, 2291 struct sockaddr_storage *from, 2292 socklen_t fromlen) 2293{ 2294 int reply_len, res; 2295 2296 os_memcpy(reply, "OK\n", 3); 2297 reply_len = 3; 2298 2299 if (os_strcmp(buf, "PING") == 0) { 2300 os_memcpy(reply, "PONG\n", 5); 2301 reply_len = 5; 2302 } else if (os_strncmp(buf, "RELOG", 5) == 0) { 2303 if (wpa_debug_reopen_file() < 0) 2304 reply_len = -1; 2305 } else if (os_strcmp(buf, "STATUS") == 0) { 2306 reply_len = hostapd_ctrl_iface_status(hapd, reply, 2307 reply_size); 2308 } else if (os_strcmp(buf, "STATUS-DRIVER") == 0) { 2309 reply_len = hostapd_drv_status(hapd, reply, reply_size); 2310 } else if (os_strcmp(buf, "MIB") == 0) { 2311 reply_len = ieee802_11_get_mib(hapd, reply, reply_size); 2312 if (reply_len >= 0) { 2313 res = wpa_get_mib(hapd->wpa_auth, reply + reply_len, 2314 reply_size - reply_len); 2315 if (res < 0) 2316 reply_len = -1; 2317 else 2318 reply_len += res; 2319 } 2320 if (reply_len >= 0) { 2321 res = ieee802_1x_get_mib(hapd, reply + reply_len, 2322 reply_size - reply_len); 2323 if (res < 0) 2324 reply_len = -1; 2325 else 2326 reply_len += res; 2327 } 2328#ifndef CONFIG_NO_RADIUS 2329 if (reply_len >= 0) { 2330 res = radius_client_get_mib(hapd->radius, 2331 reply + reply_len, 2332 reply_size - reply_len); 2333 if (res < 0) 2334 reply_len = -1; 2335 else 2336 reply_len += res; 2337 } 2338#endif /* CONFIG_NO_RADIUS */ 2339 } else if (os_strncmp(buf, "MIB ", 4) == 0) { 2340 reply_len = hostapd_ctrl_iface_mib(hapd, reply, reply_size, 2341 buf + 4); 2342 } else if (os_strcmp(buf, "STA-FIRST") == 0) { 2343 reply_len = hostapd_ctrl_iface_sta_first(hapd, reply, 2344 reply_size); 2345 } else if (os_strncmp(buf, "STA ", 4) == 0) { 2346 reply_len = hostapd_ctrl_iface_sta(hapd, buf + 4, reply, 2347 reply_size); 2348 } else if (os_strncmp(buf, "STA-NEXT ", 9) == 0) { 2349 reply_len = hostapd_ctrl_iface_sta_next(hapd, buf + 9, reply, 2350 reply_size); 2351 } else if (os_strcmp(buf, "ATTACH") == 0) { 2352 if (hostapd_ctrl_iface_attach(hapd, from, fromlen)) 2353 reply_len = -1; 2354 } else if (os_strcmp(buf, "DETACH") == 0) { 2355 if (hostapd_ctrl_iface_detach(hapd, from, fromlen)) 2356 reply_len = -1; 2357 } else if (os_strncmp(buf, "LEVEL ", 6) == 0) { 2358 if (hostapd_ctrl_iface_level(hapd, from, fromlen, 2359 buf + 6)) 2360 reply_len = -1; 2361 } else if (os_strncmp(buf, "NEW_STA ", 8) == 0) { 2362 if (hostapd_ctrl_iface_new_sta(hapd, buf + 8)) 2363 reply_len = -1; 2364 } else if (os_strncmp(buf, "DEAUTHENTICATE ", 15) == 0) { 2365 if (hostapd_ctrl_iface_deauthenticate(hapd, buf + 15)) 2366 reply_len = -1; 2367 } else if (os_strncmp(buf, "DISASSOCIATE ", 13) == 0) { 2368 if (hostapd_ctrl_iface_disassociate(hapd, buf + 13)) 2369 reply_len = -1; 2370#ifdef CONFIG_TAXONOMY 2371 } else if (os_strncmp(buf, "SIGNATURE ", 10) == 0) { 2372 reply_len = hostapd_ctrl_iface_signature(hapd, buf + 10, 2373 reply, reply_size); 2374#endif /* CONFIG_TAXONOMY */ 2375 } else if (os_strncmp(buf, "POLL_STA ", 9) == 0) { 2376 if (hostapd_ctrl_iface_poll_sta(hapd, buf + 9)) 2377 reply_len = -1; 2378 } else if (os_strcmp(buf, "STOP_AP") == 0) { 2379 if (hostapd_ctrl_iface_stop_ap(hapd)) 2380 reply_len = -1; 2381#ifdef CONFIG_IEEE80211W 2382#ifdef NEED_AP_MLME 2383 } else if (os_strncmp(buf, "SA_QUERY ", 9) == 0) { 2384 if (hostapd_ctrl_iface_sa_query(hapd, buf + 9)) 2385 reply_len = -1; 2386#endif /* NEED_AP_MLME */ 2387#endif /* CONFIG_IEEE80211W */ 2388#ifdef CONFIG_WPS 2389 } else if (os_strncmp(buf, "WPS_PIN ", 8) == 0) { 2390 if (hostapd_ctrl_iface_wps_pin(hapd, buf + 8)) 2391 reply_len = -1; 2392 } else if (os_strncmp(buf, "WPS_CHECK_PIN ", 14) == 0) { 2393 reply_len = hostapd_ctrl_iface_wps_check_pin( 2394 hapd, buf + 14, reply, reply_size); 2395 } else if (os_strcmp(buf, "WPS_PBC") == 0) { 2396 if (hostapd_wps_button_pushed(hapd, NULL)) 2397 reply_len = -1; 2398 } else if (os_strcmp(buf, "WPS_CANCEL") == 0) { 2399 if (hostapd_wps_cancel(hapd)) 2400 reply_len = -1; 2401 } else if (os_strncmp(buf, "WPS_AP_PIN ", 11) == 0) { 2402 reply_len = hostapd_ctrl_iface_wps_ap_pin(hapd, buf + 11, 2403 reply, reply_size); 2404 } else if (os_strncmp(buf, "WPS_CONFIG ", 11) == 0) { 2405 if (hostapd_ctrl_iface_wps_config(hapd, buf + 11) < 0) 2406 reply_len = -1; 2407 } else if (os_strncmp(buf, "WPS_GET_STATUS", 13) == 0) { 2408 reply_len = hostapd_ctrl_iface_wps_get_status(hapd, reply, 2409 reply_size); 2410#ifdef CONFIG_WPS_NFC 2411 } else if (os_strncmp(buf, "WPS_NFC_TAG_READ ", 17) == 0) { 2412 if (hostapd_ctrl_iface_wps_nfc_tag_read(hapd, buf + 17)) 2413 reply_len = -1; 2414 } else if (os_strncmp(buf, "WPS_NFC_CONFIG_TOKEN ", 21) == 0) { 2415 reply_len = hostapd_ctrl_iface_wps_nfc_config_token( 2416 hapd, buf + 21, reply, reply_size); 2417 } else if (os_strncmp(buf, "WPS_NFC_TOKEN ", 14) == 0) { 2418 reply_len = hostapd_ctrl_iface_wps_nfc_token( 2419 hapd, buf + 14, reply, reply_size); 2420 } else if (os_strncmp(buf, "NFC_GET_HANDOVER_SEL ", 21) == 0) { 2421 reply_len = hostapd_ctrl_iface_nfc_get_handover_sel( 2422 hapd, buf + 21, reply, reply_size); 2423 } else if (os_strncmp(buf, "NFC_REPORT_HANDOVER ", 20) == 0) { 2424 if (hostapd_ctrl_iface_nfc_report_handover(hapd, buf + 20)) 2425 reply_len = -1; 2426#endif /* CONFIG_WPS_NFC */ 2427#endif /* CONFIG_WPS */ 2428#ifdef CONFIG_INTERWORKING 2429 } else if (os_strncmp(buf, "SET_QOS_MAP_SET ", 16) == 0) { 2430 if (hostapd_ctrl_iface_set_qos_map_set(hapd, buf + 16)) 2431 reply_len = -1; 2432 } else if (os_strncmp(buf, "SEND_QOS_MAP_CONF ", 18) == 0) { 2433 if (hostapd_ctrl_iface_send_qos_map_conf(hapd, buf + 18)) 2434 reply_len = -1; 2435#endif /* CONFIG_INTERWORKING */ 2436#ifdef CONFIG_HS20 2437 } else if (os_strncmp(buf, "HS20_WNM_NOTIF ", 15) == 0) { 2438 if (hostapd_ctrl_iface_hs20_wnm_notif(hapd, buf + 15)) 2439 reply_len = -1; 2440 } else if (os_strncmp(buf, "HS20_DEAUTH_REQ ", 16) == 0) { 2441 if (hostapd_ctrl_iface_hs20_deauth_req(hapd, buf + 16)) 2442 reply_len = -1; 2443#endif /* CONFIG_HS20 */ 2444#ifdef CONFIG_WNM 2445 } else if (os_strncmp(buf, "DISASSOC_IMMINENT ", 18) == 0) { 2446 if (hostapd_ctrl_iface_disassoc_imminent(hapd, buf + 18)) 2447 reply_len = -1; 2448 } else if (os_strncmp(buf, "ESS_DISASSOC ", 13) == 0) { 2449 if (hostapd_ctrl_iface_ess_disassoc(hapd, buf + 13)) 2450 reply_len = -1; 2451 } else if (os_strncmp(buf, "BSS_TM_REQ ", 11) == 0) { 2452 if (hostapd_ctrl_iface_bss_tm_req(hapd, buf + 11)) 2453 reply_len = -1; 2454#endif /* CONFIG_WNM */ 2455 } else if (os_strcmp(buf, "GET_CONFIG") == 0) { 2456 reply_len = hostapd_ctrl_iface_get_config(hapd, reply, 2457 reply_size); 2458 } else if (os_strncmp(buf, "SET ", 4) == 0) { 2459 if (hostapd_ctrl_iface_set(hapd, buf + 4)) 2460 reply_len = -1; 2461 } else if (os_strncmp(buf, "GET ", 4) == 0) { 2462 reply_len = hostapd_ctrl_iface_get(hapd, buf + 4, reply, 2463 reply_size); 2464 } else if (os_strncmp(buf, "ENABLE", 6) == 0) { 2465 if (hostapd_ctrl_iface_enable(hapd->iface)) 2466 reply_len = -1; 2467 } else if (os_strncmp(buf, "RELOAD", 6) == 0) { 2468 if (hostapd_ctrl_iface_reload(hapd->iface)) 2469 reply_len = -1; 2470 } else if (os_strncmp(buf, "DISABLE", 7) == 0) { 2471 if (hostapd_ctrl_iface_disable(hapd->iface)) 2472 reply_len = -1; 2473 } else if (os_strcmp(buf, "UPDATE_BEACON") == 0) { 2474 if (ieee802_11_set_beacon(hapd)) 2475 reply_len = -1; 2476#ifdef CONFIG_TESTING_OPTIONS 2477 } else if (os_strncmp(buf, "RADAR ", 6) == 0) { 2478 if (hostapd_ctrl_iface_radar(hapd, buf + 6)) 2479 reply_len = -1; 2480 } else if (os_strncmp(buf, "MGMT_TX ", 8) == 0) { 2481 if (hostapd_ctrl_iface_mgmt_tx(hapd, buf + 8)) 2482 reply_len = -1; 2483 } else if (os_strncmp(buf, "EAPOL_RX ", 9) == 0) { 2484 if (hostapd_ctrl_iface_eapol_rx(hapd, buf + 9) < 0) 2485 reply_len = -1; 2486 } else if (os_strncmp(buf, "DATA_TEST_CONFIG ", 17) == 0) { 2487 if (hostapd_ctrl_iface_data_test_config(hapd, buf + 17) < 0) 2488 reply_len = -1; 2489 } else if (os_strncmp(buf, "DATA_TEST_TX ", 13) == 0) { 2490 if (hostapd_ctrl_iface_data_test_tx(hapd, buf + 13) < 0) 2491 reply_len = -1; 2492 } else if (os_strncmp(buf, "DATA_TEST_FRAME ", 16) == 0) { 2493 if (hostapd_ctrl_iface_data_test_frame(hapd, buf + 16) < 0) 2494 reply_len = -1; 2495 } else if (os_strncmp(buf, "TEST_ALLOC_FAIL ", 16) == 0) { 2496 if (hostapd_ctrl_test_alloc_fail(hapd, buf + 16) < 0) 2497 reply_len = -1; 2498 } else if (os_strcmp(buf, "GET_ALLOC_FAIL") == 0) { 2499 reply_len = hostapd_ctrl_get_alloc_fail(hapd, reply, 2500 reply_size); 2501 } else if (os_strncmp(buf, "TEST_FAIL ", 10) == 0) { 2502 if (hostapd_ctrl_test_fail(hapd, buf + 10) < 0) 2503 reply_len = -1; 2504 } else if (os_strcmp(buf, "GET_FAIL") == 0) { 2505 reply_len = hostapd_ctrl_get_fail(hapd, reply, reply_size); 2506#endif /* CONFIG_TESTING_OPTIONS */ 2507 } else if (os_strncmp(buf, "CHAN_SWITCH ", 12) == 0) { 2508 if (hostapd_ctrl_iface_chan_switch(hapd->iface, buf + 12)) 2509 reply_len = -1; 2510 } else if (os_strncmp(buf, "VENDOR ", 7) == 0) { 2511 reply_len = hostapd_ctrl_iface_vendor(hapd, buf + 7, reply, 2512 reply_size); 2513 } else if (os_strcmp(buf, "ERP_FLUSH") == 0) { 2514 ieee802_1x_erp_flush(hapd); 2515#ifdef RADIUS_SERVER 2516 radius_server_erp_flush(hapd->radius_srv); 2517#endif /* RADIUS_SERVER */ 2518 } else if (os_strncmp(buf, "EAPOL_REAUTH ", 13) == 0) { 2519 if (hostapd_ctrl_iface_eapol_reauth(hapd, buf + 13)) 2520 reply_len = -1; 2521 } else if (os_strncmp(buf, "EAPOL_SET ", 10) == 0) { 2522 if (hostapd_ctrl_iface_eapol_set(hapd, buf + 10)) 2523 reply_len = -1; 2524 } else if (os_strncmp(buf, "LOG_LEVEL", 9) == 0) { 2525 reply_len = hostapd_ctrl_iface_log_level( 2526 hapd, buf + 9, reply, reply_size); 2527#ifdef NEED_AP_MLME 2528 } else if (os_strcmp(buf, "TRACK_STA_LIST") == 0) { 2529 reply_len = hostapd_ctrl_iface_track_sta_list( 2530 hapd, reply, reply_size); 2531#endif /* NEED_AP_MLME */ 2532 } else if (os_strcmp(buf, "PMKSA") == 0) { 2533 reply_len = hostapd_ctrl_iface_pmksa_list(hapd, reply, 2534 reply_size); 2535 } else if (os_strcmp(buf, "PMKSA_FLUSH") == 0) { 2536 hostapd_ctrl_iface_pmksa_flush(hapd); 2537 } else if (os_strncmp(buf, "SET_NEIGHBOR ", 13) == 0) { 2538 if (hostapd_ctrl_iface_set_neighbor(hapd, buf + 13)) 2539 reply_len = -1; 2540 } else if (os_strncmp(buf, "REMOVE_NEIGHBOR ", 16) == 0) { 2541 if (hostapd_ctrl_iface_remove_neighbor(hapd, buf + 16)) 2542 reply_len = -1; 2543 } else if (os_strncmp(buf, "REQ_LCI ", 8) == 0) { 2544 if (hostapd_ctrl_iface_req_lci(hapd, buf + 8)) 2545 reply_len = -1; 2546 } else if (os_strncmp(buf, "REQ_RANGE ", 10) == 0) { 2547 if (hostapd_ctrl_iface_req_range(hapd, buf + 10)) 2548 reply_len = -1; 2549 } else if (os_strcmp(buf, "DRIVER_FLAGS") == 0) { 2550 reply_len = hostapd_ctrl_driver_flags(hapd->iface, reply, 2551 reply_size); 2552 } else { 2553 os_memcpy(reply, "UNKNOWN COMMAND\n", 16); 2554 reply_len = 16; 2555 } 2556 2557 if (reply_len < 0) { 2558 os_memcpy(reply, "FAIL\n", 5); 2559 reply_len = 5; 2560 } 2561 2562 return reply_len; 2563} 2564 2565 2566static void hostapd_ctrl_iface_receive(int sock, void *eloop_ctx, 2567 void *sock_ctx) 2568{ 2569 struct hostapd_data *hapd = eloop_ctx; 2570 char buf[4096]; 2571 int res; 2572 struct sockaddr_storage from; 2573 socklen_t fromlen = sizeof(from); 2574 char *reply, *pos = buf; 2575 const int reply_size = 4096; 2576 int reply_len; 2577 int level = MSG_DEBUG; 2578#ifdef CONFIG_CTRL_IFACE_UDP 2579 unsigned char lcookie[COOKIE_LEN]; 2580#endif /* CONFIG_CTRL_IFACE_UDP */ 2581 2582 res = recvfrom(sock, buf, sizeof(buf) - 1, 0, 2583 (struct sockaddr *) &from, &fromlen); 2584 if (res < 0) { 2585 wpa_printf(MSG_ERROR, "recvfrom(ctrl_iface): %s", 2586 strerror(errno)); 2587 return; 2588 } 2589 buf[res] = '\0'; 2590 2591 reply = os_malloc(reply_size); 2592 if (reply == NULL) { 2593 if (sendto(sock, "FAIL\n", 5, 0, (struct sockaddr *) &from, 2594 fromlen) < 0) { 2595 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s", 2596 strerror(errno)); 2597 } 2598 return; 2599 } 2600 2601#ifdef CONFIG_CTRL_IFACE_UDP 2602 if (os_strcmp(buf, "GET_COOKIE") == 0) { 2603 os_memcpy(reply, "COOKIE=", 7); 2604 wpa_snprintf_hex(reply + 7, 2 * COOKIE_LEN + 1, 2605 cookie, COOKIE_LEN); 2606 reply_len = 7 + 2 * COOKIE_LEN; 2607 goto done; 2608 } 2609 2610 if (os_strncmp(buf, "COOKIE=", 7) != 0 || 2611 hexstr2bin(buf + 7, lcookie, COOKIE_LEN) < 0) { 2612 wpa_printf(MSG_DEBUG, 2613 "CTRL: No cookie in the request - drop request"); 2614 os_free(reply); 2615 return; 2616 } 2617 2618 if (os_memcmp(cookie, lcookie, COOKIE_LEN) != 0) { 2619 wpa_printf(MSG_DEBUG, 2620 "CTRL: Invalid cookie in the request - drop request"); 2621 os_free(reply); 2622 return; 2623 } 2624 2625 pos = buf + 7 + 2 * COOKIE_LEN; 2626 while (*pos == ' ') 2627 pos++; 2628#endif /* CONFIG_CTRL_IFACE_UDP */ 2629 2630 if (os_strcmp(pos, "PING") == 0) 2631 level = MSG_EXCESSIVE; 2632 wpa_hexdump_ascii(level, "RX ctrl_iface", pos, res); 2633 2634 reply_len = hostapd_ctrl_iface_receive_process(hapd, pos, 2635 reply, reply_size, 2636 &from, fromlen); 2637 2638#ifdef CONFIG_CTRL_IFACE_UDP 2639done: 2640#endif /* CONFIG_CTRL_IFACE_UDP */ 2641 if (sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from, 2642 fromlen) < 0) { 2643 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s", 2644 strerror(errno)); 2645 } 2646 os_free(reply); 2647} 2648 2649 2650#ifndef CONFIG_CTRL_IFACE_UDP 2651static char * hostapd_ctrl_iface_path(struct hostapd_data *hapd) 2652{ 2653 char *buf; 2654 size_t len; 2655 2656 if (hapd->conf->ctrl_interface == NULL) 2657 return NULL; 2658 2659 len = os_strlen(hapd->conf->ctrl_interface) + 2660 os_strlen(hapd->conf->iface) + 2; 2661 buf = os_malloc(len); 2662 if (buf == NULL) 2663 return NULL; 2664 2665 os_snprintf(buf, len, "%s/%s", 2666 hapd->conf->ctrl_interface, hapd->conf->iface); 2667 buf[len - 1] = '\0'; 2668 return buf; 2669} 2670#endif /* CONFIG_CTRL_IFACE_UDP */ 2671 2672 2673static void hostapd_ctrl_iface_msg_cb(void *ctx, int level, 2674 enum wpa_msg_type type, 2675 const char *txt, size_t len) 2676{ 2677 struct hostapd_data *hapd = ctx; 2678 if (hapd == NULL) 2679 return; 2680 hostapd_ctrl_iface_send(hapd, level, type, txt, len); 2681} 2682 2683 2684int hostapd_ctrl_iface_init(struct hostapd_data *hapd) 2685{ 2686#ifdef CONFIG_CTRL_IFACE_UDP 2687 int port = HOSTAPD_CTRL_IFACE_PORT; 2688 char p[32] = { 0 }; 2689 char port_str[40], *tmp; 2690 char *pos; 2691 struct addrinfo hints = { 0 }, *res, *saveres; 2692 int n; 2693 2694 if (hapd->ctrl_sock > -1) { 2695 wpa_printf(MSG_DEBUG, "ctrl_iface already exists!"); 2696 return 0; 2697 } 2698 2699 if (hapd->conf->ctrl_interface == NULL) 2700 return 0; 2701 2702 pos = os_strstr(hapd->conf->ctrl_interface, "udp:"); 2703 if (pos) { 2704 pos += 4; 2705 port = atoi(pos); 2706 if (port <= 0) { 2707 wpa_printf(MSG_ERROR, "Invalid ctrl_iface UDP port"); 2708 goto fail; 2709 } 2710 } 2711 2712 dl_list_init(&hapd->ctrl_dst); 2713 hapd->ctrl_sock = -1; 2714 os_get_random(cookie, COOKIE_LEN); 2715 2716#ifdef CONFIG_CTRL_IFACE_UDP_REMOTE 2717 hints.ai_flags = AI_PASSIVE; 2718#endif /* CONFIG_CTRL_IFACE_UDP_REMOTE */ 2719 2720#ifdef CONFIG_CTRL_IFACE_UDP_IPV6 2721 hints.ai_family = AF_INET6; 2722#else /* CONFIG_CTRL_IFACE_UDP_IPV6 */ 2723 hints.ai_family = AF_INET; 2724#endif /* CONFIG_CTRL_IFACE_UDP_IPV6 */ 2725 hints.ai_socktype = SOCK_DGRAM; 2726 2727try_again: 2728 os_snprintf(p, sizeof(p), "%d", port); 2729 n = getaddrinfo(NULL, p, &hints, &res); 2730 if (n) { 2731 wpa_printf(MSG_ERROR, "getaddrinfo(): %s", gai_strerror(n)); 2732 goto fail; 2733 } 2734 2735 saveres = res; 2736 hapd->ctrl_sock = socket(res->ai_family, res->ai_socktype, 2737 res->ai_protocol); 2738 if (hapd->ctrl_sock < 0) { 2739 wpa_printf(MSG_ERROR, "socket(PF_INET): %s", strerror(errno)); 2740 goto fail; 2741 } 2742 2743 if (bind(hapd->ctrl_sock, res->ai_addr, res->ai_addrlen) < 0) { 2744 port--; 2745 if ((HOSTAPD_CTRL_IFACE_PORT - port) < 2746 HOSTAPD_CTRL_IFACE_PORT_LIMIT && !pos) 2747 goto try_again; 2748 wpa_printf(MSG_ERROR, "bind(AF_INET): %s", strerror(errno)); 2749 goto fail; 2750 } 2751 2752 freeaddrinfo(saveres); 2753 2754 os_snprintf(port_str, sizeof(port_str), "udp:%d", port); 2755 tmp = os_strdup(port_str); 2756 if (tmp) { 2757 os_free(hapd->conf->ctrl_interface); 2758 hapd->conf->ctrl_interface = tmp; 2759 } 2760 wpa_printf(MSG_DEBUG, "ctrl_iface_init UDP port: %d", port); 2761 2762 if (eloop_register_read_sock(hapd->ctrl_sock, 2763 hostapd_ctrl_iface_receive, hapd, NULL) < 2764 0) { 2765 hostapd_ctrl_iface_deinit(hapd); 2766 return -1; 2767 } 2768 2769 hapd->msg_ctx = hapd; 2770 wpa_msg_register_cb(hostapd_ctrl_iface_msg_cb); 2771 2772 return 0; 2773 2774fail: 2775 if (hapd->ctrl_sock >= 0) 2776 close(hapd->ctrl_sock); 2777 return -1; 2778#else /* CONFIG_CTRL_IFACE_UDP */ 2779 struct sockaddr_un addr; 2780 int s = -1; 2781 char *fname = NULL; 2782 2783 if (hapd->ctrl_sock > -1) { 2784 wpa_printf(MSG_DEBUG, "ctrl_iface already exists!"); 2785 return 0; 2786 } 2787 2788 dl_list_init(&hapd->ctrl_dst); 2789 2790 if (hapd->conf->ctrl_interface == NULL) 2791 return 0; 2792 2793 if (mkdir(hapd->conf->ctrl_interface, S_IRWXU | S_IRWXG) < 0) { 2794 if (errno == EEXIST) { 2795 wpa_printf(MSG_DEBUG, "Using existing control " 2796 "interface directory."); 2797 } else { 2798 wpa_printf(MSG_ERROR, "mkdir[ctrl_interface]: %s", 2799 strerror(errno)); 2800 goto fail; 2801 } 2802 } 2803 2804 if (hapd->conf->ctrl_interface_gid_set && 2805 chown(hapd->conf->ctrl_interface, -1, 2806 hapd->conf->ctrl_interface_gid) < 0) { 2807 wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s", 2808 strerror(errno)); 2809 return -1; 2810 } 2811 2812 if (!hapd->conf->ctrl_interface_gid_set && 2813 hapd->iface->interfaces->ctrl_iface_group && 2814 chown(hapd->conf->ctrl_interface, -1, 2815 hapd->iface->interfaces->ctrl_iface_group) < 0) { 2816 wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s", 2817 strerror(errno)); 2818 return -1; 2819 } 2820 2821#ifdef ANDROID 2822 /* 2823 * Android is using umask 0077 which would leave the control interface 2824 * directory without group access. This breaks things since Wi-Fi 2825 * framework assumes that this directory can be accessed by other 2826 * applications in the wifi group. Fix this by adding group access even 2827 * if umask value would prevent this. 2828 */ 2829 if (chmod(hapd->conf->ctrl_interface, S_IRWXU | S_IRWXG) < 0) { 2830 wpa_printf(MSG_ERROR, "CTRL: Could not chmod directory: %s", 2831 strerror(errno)); 2832 /* Try to continue anyway */ 2833 } 2834#endif /* ANDROID */ 2835 2836 if (os_strlen(hapd->conf->ctrl_interface) + 1 + 2837 os_strlen(hapd->conf->iface) >= sizeof(addr.sun_path)) 2838 goto fail; 2839 2840 s = socket(PF_UNIX, SOCK_DGRAM, 0); 2841 if (s < 0) { 2842 wpa_printf(MSG_ERROR, "socket(PF_UNIX): %s", strerror(errno)); 2843 goto fail; 2844 } 2845 2846 os_memset(&addr, 0, sizeof(addr)); 2847#ifdef __FreeBSD__ 2848 addr.sun_len = sizeof(addr); 2849#endif /* __FreeBSD__ */ 2850 addr.sun_family = AF_UNIX; 2851 fname = hostapd_ctrl_iface_path(hapd); 2852 if (fname == NULL) 2853 goto fail; 2854 os_strlcpy(addr.sun_path, fname, sizeof(addr.sun_path)); 2855 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) { 2856 wpa_printf(MSG_DEBUG, "ctrl_iface bind(PF_UNIX) failed: %s", 2857 strerror(errno)); 2858 if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) { 2859 wpa_printf(MSG_DEBUG, "ctrl_iface exists, but does not" 2860 " allow connections - assuming it was left" 2861 "over from forced program termination"); 2862 if (unlink(fname) < 0) { 2863 wpa_printf(MSG_ERROR, 2864 "Could not unlink existing ctrl_iface socket '%s': %s", 2865 fname, strerror(errno)); 2866 goto fail; 2867 } 2868 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 2869 0) { 2870 wpa_printf(MSG_ERROR, 2871 "hostapd-ctrl-iface: bind(PF_UNIX): %s", 2872 strerror(errno)); 2873 goto fail; 2874 } 2875 wpa_printf(MSG_DEBUG, "Successfully replaced leftover " 2876 "ctrl_iface socket '%s'", fname); 2877 } else { 2878 wpa_printf(MSG_INFO, "ctrl_iface exists and seems to " 2879 "be in use - cannot override it"); 2880 wpa_printf(MSG_INFO, "Delete '%s' manually if it is " 2881 "not used anymore", fname); 2882 os_free(fname); 2883 fname = NULL; 2884 goto fail; 2885 } 2886 } 2887 2888 if (hapd->conf->ctrl_interface_gid_set && 2889 chown(fname, -1, hapd->conf->ctrl_interface_gid) < 0) { 2890 wpa_printf(MSG_ERROR, "chown[ctrl_interface/ifname]: %s", 2891 strerror(errno)); 2892 goto fail; 2893 } 2894 2895 if (!hapd->conf->ctrl_interface_gid_set && 2896 hapd->iface->interfaces->ctrl_iface_group && 2897 chown(fname, -1, hapd->iface->interfaces->ctrl_iface_group) < 0) { 2898 wpa_printf(MSG_ERROR, "chown[ctrl_interface/ifname]: %s", 2899 strerror(errno)); 2900 goto fail; 2901 } 2902 2903 if (chmod(fname, S_IRWXU | S_IRWXG) < 0) { 2904 wpa_printf(MSG_ERROR, "chmod[ctrl_interface/ifname]: %s", 2905 strerror(errno)); 2906 goto fail; 2907 } 2908 os_free(fname); 2909 2910 hapd->ctrl_sock = s; 2911 if (eloop_register_read_sock(s, hostapd_ctrl_iface_receive, hapd, 2912 NULL) < 0) { 2913 hostapd_ctrl_iface_deinit(hapd); 2914 return -1; 2915 } 2916 hapd->msg_ctx = hapd; 2917 wpa_msg_register_cb(hostapd_ctrl_iface_msg_cb); 2918 2919 return 0; 2920 2921fail: 2922 if (s >= 0) 2923 close(s); 2924 if (fname) { 2925 unlink(fname); 2926 os_free(fname); 2927 } 2928 return -1; 2929#endif /* CONFIG_CTRL_IFACE_UDP */ 2930} 2931 2932 2933void hostapd_ctrl_iface_deinit(struct hostapd_data *hapd) 2934{ 2935 struct wpa_ctrl_dst *dst, *prev; 2936 2937 if (hapd->ctrl_sock > -1) { 2938#ifndef CONFIG_CTRL_IFACE_UDP 2939 char *fname; 2940#endif /* !CONFIG_CTRL_IFACE_UDP */ 2941 2942 eloop_unregister_read_sock(hapd->ctrl_sock); 2943 close(hapd->ctrl_sock); 2944 hapd->ctrl_sock = -1; 2945#ifndef CONFIG_CTRL_IFACE_UDP 2946 fname = hostapd_ctrl_iface_path(hapd); 2947 if (fname) 2948 unlink(fname); 2949 os_free(fname); 2950 2951 if (hapd->conf->ctrl_interface && 2952 rmdir(hapd->conf->ctrl_interface) < 0) { 2953 if (errno == ENOTEMPTY) { 2954 wpa_printf(MSG_DEBUG, "Control interface " 2955 "directory not empty - leaving it " 2956 "behind"); 2957 } else { 2958 wpa_printf(MSG_ERROR, 2959 "rmdir[ctrl_interface=%s]: %s", 2960 hapd->conf->ctrl_interface, 2961 strerror(errno)); 2962 } 2963 } 2964#endif /* !CONFIG_CTRL_IFACE_UDP */ 2965 } 2966 2967 dl_list_for_each_safe(dst, prev, &hapd->ctrl_dst, struct wpa_ctrl_dst, 2968 list) 2969 os_free(dst); 2970 2971#ifdef CONFIG_TESTING_OPTIONS 2972 l2_packet_deinit(hapd->l2_test); 2973 hapd->l2_test = NULL; 2974#endif /* CONFIG_TESTING_OPTIONS */ 2975} 2976 2977 2978static int hostapd_ctrl_iface_add(struct hapd_interfaces *interfaces, 2979 char *buf) 2980{ 2981 if (hostapd_add_iface(interfaces, buf) < 0) { 2982 wpa_printf(MSG_ERROR, "Adding interface %s failed", buf); 2983 return -1; 2984 } 2985 return 0; 2986} 2987 2988 2989static int hostapd_ctrl_iface_remove(struct hapd_interfaces *interfaces, 2990 char *buf) 2991{ 2992 if (hostapd_remove_iface(interfaces, buf) < 0) { 2993 wpa_printf(MSG_ERROR, "Removing interface %s failed", buf); 2994 return -1; 2995 } 2996 return 0; 2997} 2998 2999 3000static int hostapd_global_ctrl_iface_attach(struct hapd_interfaces *interfaces, 3001 struct sockaddr_storage *from, 3002 socklen_t fromlen) 3003{ 3004 return ctrl_iface_attach(&interfaces->global_ctrl_dst, from, fromlen); 3005} 3006 3007 3008static int hostapd_global_ctrl_iface_detach(struct hapd_interfaces *interfaces, 3009 struct sockaddr_storage *from, 3010 socklen_t fromlen) 3011{ 3012 return ctrl_iface_detach(&interfaces->global_ctrl_dst, from, fromlen); 3013} 3014 3015 3016static void hostapd_ctrl_iface_flush(struct hapd_interfaces *interfaces) 3017{ 3018#ifdef CONFIG_WPS_TESTING 3019 wps_version_number = 0x20; 3020 wps_testing_dummy_cred = 0; 3021 wps_corrupt_pkhash = 0; 3022#endif /* CONFIG_WPS_TESTING */ 3023} 3024 3025 3026#ifdef CONFIG_FST 3027 3028static int 3029hostapd_global_ctrl_iface_fst_attach(struct hapd_interfaces *interfaces, 3030 const char *cmd) 3031{ 3032 char ifname[IFNAMSIZ + 1]; 3033 struct fst_iface_cfg cfg; 3034 struct hostapd_data *hapd; 3035 struct fst_wpa_obj iface_obj; 3036 3037 if (!fst_parse_attach_command(cmd, ifname, sizeof(ifname), &cfg)) { 3038 hapd = hostapd_get_iface(interfaces, ifname); 3039 if (hapd) { 3040 if (hapd->iface->fst) { 3041 wpa_printf(MSG_INFO, "FST: Already attached"); 3042 return -1; 3043 } 3044 fst_hostapd_fill_iface_obj(hapd, &iface_obj); 3045 hapd->iface->fst = fst_attach(ifname, hapd->own_addr, 3046 &iface_obj, &cfg); 3047 if (hapd->iface->fst) 3048 return 0; 3049 } 3050 } 3051 3052 return -EINVAL; 3053} 3054 3055 3056static int 3057hostapd_global_ctrl_iface_fst_detach(struct hapd_interfaces *interfaces, 3058 const char *cmd) 3059{ 3060 char ifname[IFNAMSIZ + 1]; 3061 struct hostapd_data * hapd; 3062 3063 if (!fst_parse_detach_command(cmd, ifname, sizeof(ifname))) { 3064 hapd = hostapd_get_iface(interfaces, ifname); 3065 if (hapd) { 3066 if (!fst_iface_detach(ifname)) { 3067 hapd->iface->fst = NULL; 3068 hapd->iface->fst_ies = NULL; 3069 return 0; 3070 } 3071 } 3072 } 3073 3074 return -EINVAL; 3075} 3076 3077#endif /* CONFIG_FST */ 3078 3079 3080static struct hostapd_data * 3081hostapd_interfaces_get_hapd(struct hapd_interfaces *interfaces, 3082 const char *ifname) 3083{ 3084 size_t i, j; 3085 3086 for (i = 0; i < interfaces->count; i++) { 3087 struct hostapd_iface *iface = interfaces->iface[i]; 3088 3089 for (j = 0; j < iface->num_bss; j++) { 3090 struct hostapd_data *hapd; 3091 3092 hapd = iface->bss[j]; 3093 if (os_strcmp(ifname, hapd->conf->iface) == 0) 3094 return hapd; 3095 } 3096 } 3097 3098 return NULL; 3099} 3100 3101 3102static int hostapd_ctrl_iface_dup_param(struct hostapd_data *src_hapd, 3103 struct hostapd_data *dst_hapd, 3104 const char *param) 3105{ 3106 int res; 3107 char *value; 3108 3109 value = os_zalloc(HOSTAPD_CLI_DUP_VALUE_MAX_LEN); 3110 if (!value) { 3111 wpa_printf(MSG_ERROR, 3112 "DUP: cannot allocate buffer to stringify %s", 3113 param); 3114 goto error_return; 3115 } 3116 3117 if (os_strcmp(param, "wpa") == 0) { 3118 os_snprintf(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN, "%d", 3119 src_hapd->conf->wpa); 3120 } else if (os_strcmp(param, "wpa_key_mgmt") == 0 && 3121 src_hapd->conf->wpa_key_mgmt) { 3122 res = hostapd_ctrl_iface_get_key_mgmt( 3123 src_hapd, value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN); 3124 if (os_snprintf_error(HOSTAPD_CLI_DUP_VALUE_MAX_LEN, res)) 3125 goto error_stringify; 3126 } else if (os_strcmp(param, "wpa_pairwise") == 0 && 3127 src_hapd->conf->wpa_pairwise) { 3128 res = wpa_write_ciphers(value, 3129 value + HOSTAPD_CLI_DUP_VALUE_MAX_LEN, 3130 src_hapd->conf->wpa_pairwise, " "); 3131 if (res < 0) 3132 goto error_stringify; 3133 } else if (os_strcmp(param, "rsn_pairwise") == 0 && 3134 src_hapd->conf->rsn_pairwise) { 3135 res = wpa_write_ciphers(value, 3136 value + HOSTAPD_CLI_DUP_VALUE_MAX_LEN, 3137 src_hapd->conf->rsn_pairwise, " "); 3138 if (res < 0) 3139 goto error_stringify; 3140 } else if (os_strcmp(param, "wpa_passphrase") == 0 && 3141 src_hapd->conf->ssid.wpa_passphrase) { 3142 os_snprintf(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN, "%s", 3143 src_hapd->conf->ssid.wpa_passphrase); 3144 } else if (os_strcmp(param, "wpa_psk") == 0 && 3145 src_hapd->conf->ssid.wpa_psk_set) { 3146 wpa_snprintf_hex(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN, 3147 src_hapd->conf->ssid.wpa_psk->psk, PMK_LEN); 3148 } else { 3149 wpa_printf(MSG_WARNING, "DUP: %s cannot be duplicated", param); 3150 goto error_return; 3151 } 3152 3153 res = hostapd_set_iface(dst_hapd->iconf, dst_hapd->conf, param, value); 3154 os_free(value); 3155 return res; 3156 3157error_stringify: 3158 wpa_printf(MSG_ERROR, "DUP: cannot stringify %s", param); 3159error_return: 3160 os_free(value); 3161 return -1; 3162} 3163 3164 3165static int 3166hostapd_global_ctrl_iface_interfaces(struct hapd_interfaces *interfaces, 3167 const char *input, 3168 char *reply, int reply_size) 3169{ 3170 size_t i, j; 3171 int res; 3172 char *pos, *end; 3173 struct hostapd_iface *iface; 3174 int show_ctrl = 0; 3175 3176 if (input) 3177 show_ctrl = !!os_strstr(input, "ctrl"); 3178 3179 pos = reply; 3180 end = reply + reply_size; 3181 3182 for (i = 0; i < interfaces->count; i++) { 3183 iface = interfaces->iface[i]; 3184 3185 for (j = 0; j < iface->num_bss; j++) { 3186 struct hostapd_bss_config *conf; 3187 3188 conf = iface->conf->bss[j]; 3189 if (show_ctrl) 3190 res = os_snprintf(pos, end - pos, 3191 "%s ctrl_iface=%s\n", 3192 conf->iface, 3193 conf->ctrl_interface ? 3194 conf->ctrl_interface : "N/A"); 3195 else 3196 res = os_snprintf(pos, end - pos, "%s\n", 3197 conf->iface); 3198 if (os_snprintf_error(end - pos, res)) { 3199 *pos = '\0'; 3200 return pos - reply; 3201 } 3202 pos += res; 3203 } 3204 } 3205 3206 return pos - reply; 3207} 3208 3209 3210static int 3211hostapd_global_ctrl_iface_dup_network(struct hapd_interfaces *interfaces, 3212 char *cmd) 3213{ 3214 char *p_start = cmd, *p_end; 3215 struct hostapd_data *src_hapd, *dst_hapd; 3216 3217 /* cmd: "<src ifname> <dst ifname> <variable name> */ 3218 3219 p_end = os_strchr(p_start, ' '); 3220 if (!p_end) { 3221 wpa_printf(MSG_ERROR, "DUP: no src ifname found in cmd: '%s'", 3222 cmd); 3223 return -1; 3224 } 3225 3226 *p_end = '\0'; 3227 src_hapd = hostapd_interfaces_get_hapd(interfaces, p_start); 3228 if (!src_hapd) { 3229 wpa_printf(MSG_ERROR, "DUP: no src ifname found: '%s'", 3230 p_start); 3231 return -1; 3232 } 3233 3234 p_start = p_end + 1; 3235 p_end = os_strchr(p_start, ' '); 3236 if (!p_end) { 3237 wpa_printf(MSG_ERROR, "DUP: no dst ifname found in cmd: '%s'", 3238 cmd); 3239 return -1; 3240 } 3241 3242 *p_end = '\0'; 3243 dst_hapd = hostapd_interfaces_get_hapd(interfaces, p_start); 3244 if (!dst_hapd) { 3245 wpa_printf(MSG_ERROR, "DUP: no dst ifname found: '%s'", 3246 p_start); 3247 return -1; 3248 } 3249 3250 p_start = p_end + 1; 3251 return hostapd_ctrl_iface_dup_param(src_hapd, dst_hapd, p_start); 3252} 3253 3254 3255static int hostapd_global_ctrl_iface_ifname(struct hapd_interfaces *interfaces, 3256 const char *ifname, 3257 char *buf, char *reply, 3258 int reply_size, 3259 struct sockaddr_storage *from, 3260 socklen_t fromlen) 3261{ 3262 struct hostapd_data *hapd; 3263 3264 hapd = hostapd_interfaces_get_hapd(interfaces, ifname); 3265 if (hapd == NULL) { 3266 int res; 3267 3268 res = os_snprintf(reply, reply_size, "FAIL-NO-IFNAME-MATCH\n"); 3269 if (os_snprintf_error(reply_size, res)) 3270 return -1; 3271 return res; 3272 } 3273 3274 return hostapd_ctrl_iface_receive_process(hapd, buf, reply,reply_size, 3275 from, fromlen); 3276} 3277 3278 3279static void hostapd_global_ctrl_iface_receive(int sock, void *eloop_ctx, 3280 void *sock_ctx) 3281{ 3282 void *interfaces = eloop_ctx; 3283 char buffer[256], *buf = buffer; 3284 int res; 3285 struct sockaddr_storage from; 3286 socklen_t fromlen = sizeof(from); 3287 char *reply; 3288 int reply_len; 3289 const int reply_size = 4096; 3290#ifdef CONFIG_CTRL_IFACE_UDP 3291 unsigned char lcookie[COOKIE_LEN]; 3292#endif /* CONFIG_CTRL_IFACE_UDP */ 3293 3294 res = recvfrom(sock, buffer, sizeof(buffer) - 1, 0, 3295 (struct sockaddr *) &from, &fromlen); 3296 if (res < 0) { 3297 wpa_printf(MSG_ERROR, "recvfrom(ctrl_iface): %s", 3298 strerror(errno)); 3299 return; 3300 } 3301 buf[res] = '\0'; 3302 wpa_printf(MSG_DEBUG, "Global ctrl_iface command: %s", buf); 3303 3304 reply = os_malloc(reply_size); 3305 if (reply == NULL) { 3306 if (sendto(sock, "FAIL\n", 5, 0, (struct sockaddr *) &from, 3307 fromlen) < 0) { 3308 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s", 3309 strerror(errno)); 3310 } 3311 return; 3312 } 3313 3314 os_memcpy(reply, "OK\n", 3); 3315 reply_len = 3; 3316 3317#ifdef CONFIG_CTRL_IFACE_UDP 3318 if (os_strcmp(buf, "GET_COOKIE") == 0) { 3319 os_memcpy(reply, "COOKIE=", 7); 3320 wpa_snprintf_hex(reply + 7, 2 * COOKIE_LEN + 1, 3321 gcookie, COOKIE_LEN); 3322 reply_len = 7 + 2 * COOKIE_LEN; 3323 goto send_reply; 3324 } 3325 3326 if (os_strncmp(buf, "COOKIE=", 7) != 0 || 3327 hexstr2bin(buf + 7, lcookie, COOKIE_LEN) < 0) { 3328 wpa_printf(MSG_DEBUG, 3329 "CTRL: No cookie in the request - drop request"); 3330 os_free(reply); 3331 return; 3332 } 3333 3334 if (os_memcmp(gcookie, lcookie, COOKIE_LEN) != 0) { 3335 wpa_printf(MSG_DEBUG, 3336 "CTRL: Invalid cookie in the request - drop request"); 3337 os_free(reply); 3338 return; 3339 } 3340 3341 buf += 7 + 2 * COOKIE_LEN; 3342 while (*buf == ' ') 3343 buf++; 3344#endif /* CONFIG_CTRL_IFACE_UDP */ 3345 3346 if (os_strncmp(buf, "IFNAME=", 7) == 0) { 3347 char *pos = os_strchr(buf + 7, ' '); 3348 3349 if (pos) { 3350 *pos++ = '\0'; 3351 reply_len = hostapd_global_ctrl_iface_ifname( 3352 interfaces, buf + 7, pos, reply, reply_size, 3353 &from, fromlen); 3354 goto send_reply; 3355 } 3356 } 3357 3358 if (os_strcmp(buf, "PING") == 0) { 3359 os_memcpy(reply, "PONG\n", 5); 3360 reply_len = 5; 3361 } else if (os_strncmp(buf, "RELOG", 5) == 0) { 3362 if (wpa_debug_reopen_file() < 0) 3363 reply_len = -1; 3364 } else if (os_strcmp(buf, "FLUSH") == 0) { 3365 hostapd_ctrl_iface_flush(interfaces); 3366 } else if (os_strncmp(buf, "ADD ", 4) == 0) { 3367 if (hostapd_ctrl_iface_add(interfaces, buf + 4) < 0) 3368 reply_len = -1; 3369 } else if (os_strncmp(buf, "REMOVE ", 7) == 0) { 3370 if (hostapd_ctrl_iface_remove(interfaces, buf + 7) < 0) 3371 reply_len = -1; 3372 } else if (os_strcmp(buf, "ATTACH") == 0) { 3373 if (hostapd_global_ctrl_iface_attach(interfaces, &from, 3374 fromlen)) 3375 reply_len = -1; 3376 } else if (os_strcmp(buf, "DETACH") == 0) { 3377 if (hostapd_global_ctrl_iface_detach(interfaces, &from, 3378 fromlen)) 3379 reply_len = -1; 3380#ifdef CONFIG_MODULE_TESTS 3381 } else if (os_strcmp(buf, "MODULE_TESTS") == 0) { 3382 if (hapd_module_tests() < 0) 3383 reply_len = -1; 3384#endif /* CONFIG_MODULE_TESTS */ 3385#ifdef CONFIG_FST 3386 } else if (os_strncmp(buf, "FST-ATTACH ", 11) == 0) { 3387 if (!hostapd_global_ctrl_iface_fst_attach(interfaces, buf + 11)) 3388 reply_len = os_snprintf(reply, reply_size, "OK\n"); 3389 else 3390 reply_len = -1; 3391 } else if (os_strncmp(buf, "FST-DETACH ", 11) == 0) { 3392 if (!hostapd_global_ctrl_iface_fst_detach(interfaces, buf + 11)) 3393 reply_len = os_snprintf(reply, reply_size, "OK\n"); 3394 else 3395 reply_len = -1; 3396 } else if (os_strncmp(buf, "FST-MANAGER ", 12) == 0) { 3397 reply_len = fst_ctrl_iface_receive(buf + 12, reply, reply_size); 3398#endif /* CONFIG_FST */ 3399 } else if (os_strncmp(buf, "DUP_NETWORK ", 12) == 0) { 3400 if (!hostapd_global_ctrl_iface_dup_network(interfaces, 3401 buf + 12)) 3402 reply_len = os_snprintf(reply, reply_size, "OK\n"); 3403 else 3404 reply_len = -1; 3405 } else if (os_strncmp(buf, "INTERFACES", 10) == 0) { 3406 reply_len = hostapd_global_ctrl_iface_interfaces( 3407 interfaces, buf + 10, reply, sizeof(buffer)); 3408 } else if (os_strcmp(buf, "TERMINATE") == 0) { 3409 eloop_terminate(); 3410 } else { 3411 wpa_printf(MSG_DEBUG, "Unrecognized global ctrl_iface command " 3412 "ignored"); 3413 reply_len = -1; 3414 } 3415 3416send_reply: 3417 if (reply_len < 0) { 3418 os_memcpy(reply, "FAIL\n", 5); 3419 reply_len = 5; 3420 } 3421 3422 if (sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from, 3423 fromlen) < 0) { 3424 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s", 3425 strerror(errno)); 3426 } 3427 os_free(reply); 3428} 3429 3430 3431#ifndef CONFIG_CTRL_IFACE_UDP 3432static char * hostapd_global_ctrl_iface_path(struct hapd_interfaces *interface) 3433{ 3434 char *buf; 3435 size_t len; 3436 3437 if (interface->global_iface_path == NULL) 3438 return NULL; 3439 3440 len = os_strlen(interface->global_iface_path) + 3441 os_strlen(interface->global_iface_name) + 2; 3442 buf = os_malloc(len); 3443 if (buf == NULL) 3444 return NULL; 3445 3446 os_snprintf(buf, len, "%s/%s", interface->global_iface_path, 3447 interface->global_iface_name); 3448 buf[len - 1] = '\0'; 3449 return buf; 3450} 3451#endif /* CONFIG_CTRL_IFACE_UDP */ 3452 3453 3454int hostapd_global_ctrl_iface_init(struct hapd_interfaces *interface) 3455{ 3456#ifdef CONFIG_CTRL_IFACE_UDP 3457 int port = HOSTAPD_GLOBAL_CTRL_IFACE_PORT; 3458 char p[32] = { 0 }; 3459 char *pos; 3460 struct addrinfo hints = { 0 }, *res, *saveres; 3461 int n; 3462 3463 if (interface->global_ctrl_sock > -1) { 3464 wpa_printf(MSG_DEBUG, "ctrl_iface already exists!"); 3465 return 0; 3466 } 3467 3468 if (interface->global_iface_path == NULL) 3469 return 0; 3470 3471 pos = os_strstr(interface->global_iface_path, "udp:"); 3472 if (pos) { 3473 pos += 4; 3474 port = atoi(pos); 3475 if (port <= 0) { 3476 wpa_printf(MSG_ERROR, "Invalid global ctrl UDP port"); 3477 goto fail; 3478 } 3479 } 3480 3481 dl_list_init(&interface->global_ctrl_dst); 3482 interface->global_ctrl_sock = -1; 3483 os_get_random(gcookie, COOKIE_LEN); 3484 3485#ifdef CONFIG_CTRL_IFACE_UDP_REMOTE 3486 hints.ai_flags = AI_PASSIVE; 3487#endif /* CONFIG_CTRL_IFACE_UDP_REMOTE */ 3488 3489#ifdef CONFIG_CTRL_IFACE_UDP_IPV6 3490 hints.ai_family = AF_INET6; 3491#else /* CONFIG_CTRL_IFACE_UDP_IPV6 */ 3492 hints.ai_family = AF_INET; 3493#endif /* CONFIG_CTRL_IFACE_UDP_IPV6 */ 3494 hints.ai_socktype = SOCK_DGRAM; 3495 3496try_again: 3497 os_snprintf(p, sizeof(p), "%d", port); 3498 n = getaddrinfo(NULL, p, &hints, &res); 3499 if (n) { 3500 wpa_printf(MSG_ERROR, "getaddrinfo(): %s", gai_strerror(n)); 3501 goto fail; 3502 } 3503 3504 saveres = res; 3505 interface->global_ctrl_sock = socket(res->ai_family, res->ai_socktype, 3506 res->ai_protocol); 3507 if (interface->global_ctrl_sock < 0) { 3508 wpa_printf(MSG_ERROR, "socket(PF_INET): %s", strerror(errno)); 3509 goto fail; 3510 } 3511 3512 if (bind(interface->global_ctrl_sock, res->ai_addr, res->ai_addrlen) < 3513 0) { 3514 port++; 3515 if ((port - HOSTAPD_GLOBAL_CTRL_IFACE_PORT) < 3516 HOSTAPD_GLOBAL_CTRL_IFACE_PORT_LIMIT && !pos) 3517 goto try_again; 3518 wpa_printf(MSG_ERROR, "bind(AF_INET): %s", strerror(errno)); 3519 goto fail; 3520 } 3521 3522 freeaddrinfo(saveres); 3523 3524 wpa_printf(MSG_DEBUG, "global ctrl_iface_init UDP port: %d", port); 3525 3526 if (eloop_register_read_sock(interface->global_ctrl_sock, 3527 hostapd_global_ctrl_iface_receive, 3528 interface, NULL) < 0) { 3529 hostapd_global_ctrl_iface_deinit(interface); 3530 return -1; 3531 } 3532 3533 return 0; 3534 3535fail: 3536 if (interface->global_ctrl_sock >= 0) 3537 close(interface->global_ctrl_sock); 3538 return -1; 3539#else /* CONFIG_CTRL_IFACE_UDP */ 3540 struct sockaddr_un addr; 3541 int s = -1; 3542 char *fname = NULL; 3543 3544 if (interface->global_iface_path == NULL) { 3545 wpa_printf(MSG_DEBUG, "ctrl_iface not configured!"); 3546 return 0; 3547 } 3548 3549 if (mkdir(interface->global_iface_path, S_IRWXU | S_IRWXG) < 0) { 3550 if (errno == EEXIST) { 3551 wpa_printf(MSG_DEBUG, "Using existing control " 3552 "interface directory."); 3553 } else { 3554 wpa_printf(MSG_ERROR, "mkdir[ctrl_interface]: %s", 3555 strerror(errno)); 3556 goto fail; 3557 } 3558 } else if (interface->ctrl_iface_group && 3559 chown(interface->global_iface_path, -1, 3560 interface->ctrl_iface_group) < 0) { 3561 wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s", 3562 strerror(errno)); 3563 goto fail; 3564 } 3565 3566 if (os_strlen(interface->global_iface_path) + 1 + 3567 os_strlen(interface->global_iface_name) >= sizeof(addr.sun_path)) 3568 goto fail; 3569 3570 s = socket(PF_UNIX, SOCK_DGRAM, 0); 3571 if (s < 0) { 3572 wpa_printf(MSG_ERROR, "socket(PF_UNIX): %s", strerror(errno)); 3573 goto fail; 3574 } 3575 3576 os_memset(&addr, 0, sizeof(addr)); 3577#ifdef __FreeBSD__ 3578 addr.sun_len = sizeof(addr); 3579#endif /* __FreeBSD__ */ 3580 addr.sun_family = AF_UNIX; 3581 fname = hostapd_global_ctrl_iface_path(interface); 3582 if (fname == NULL) 3583 goto fail; 3584 os_strlcpy(addr.sun_path, fname, sizeof(addr.sun_path)); 3585 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) { 3586 wpa_printf(MSG_DEBUG, "ctrl_iface bind(PF_UNIX) failed: %s", 3587 strerror(errno)); 3588 if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) { 3589 wpa_printf(MSG_DEBUG, "ctrl_iface exists, but does not" 3590 " allow connections - assuming it was left" 3591 "over from forced program termination"); 3592 if (unlink(fname) < 0) { 3593 wpa_printf(MSG_ERROR, 3594 "Could not unlink existing ctrl_iface socket '%s': %s", 3595 fname, strerror(errno)); 3596 goto fail; 3597 } 3598 if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 3599 0) { 3600 wpa_printf(MSG_ERROR, "bind(PF_UNIX): %s", 3601 strerror(errno)); 3602 goto fail; 3603 } 3604 wpa_printf(MSG_DEBUG, "Successfully replaced leftover " 3605 "ctrl_iface socket '%s'", fname); 3606 } else { 3607 wpa_printf(MSG_INFO, "ctrl_iface exists and seems to " 3608 "be in use - cannot override it"); 3609 wpa_printf(MSG_INFO, "Delete '%s' manually if it is " 3610 "not used anymore", fname); 3611 os_free(fname); 3612 fname = NULL; 3613 goto fail; 3614 } 3615 } 3616 3617 if (interface->ctrl_iface_group && 3618 chown(fname, -1, interface->ctrl_iface_group) < 0) { 3619 wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s", 3620 strerror(errno)); 3621 goto fail; 3622 } 3623 3624 if (chmod(fname, S_IRWXU | S_IRWXG) < 0) { 3625 wpa_printf(MSG_ERROR, "chmod[ctrl_interface/ifname]: %s", 3626 strerror(errno)); 3627 goto fail; 3628 } 3629 os_free(fname); 3630 3631 interface->global_ctrl_sock = s; 3632 eloop_register_read_sock(s, hostapd_global_ctrl_iface_receive, 3633 interface, NULL); 3634 3635 return 0; 3636 3637fail: 3638 if (s >= 0) 3639 close(s); 3640 if (fname) { 3641 unlink(fname); 3642 os_free(fname); 3643 } 3644 return -1; 3645#endif /* CONFIG_CTRL_IFACE_UDP */ 3646} 3647 3648 3649void hostapd_global_ctrl_iface_deinit(struct hapd_interfaces *interfaces) 3650{ 3651#ifndef CONFIG_CTRL_IFACE_UDP 3652 char *fname = NULL; 3653#endif /* CONFIG_CTRL_IFACE_UDP */ 3654 struct wpa_ctrl_dst *dst, *prev; 3655 3656 if (interfaces->global_ctrl_sock > -1) { 3657 eloop_unregister_read_sock(interfaces->global_ctrl_sock); 3658 close(interfaces->global_ctrl_sock); 3659 interfaces->global_ctrl_sock = -1; 3660#ifndef CONFIG_CTRL_IFACE_UDP 3661 fname = hostapd_global_ctrl_iface_path(interfaces); 3662 if (fname) { 3663 unlink(fname); 3664 os_free(fname); 3665 } 3666 3667 if (interfaces->global_iface_path && 3668 rmdir(interfaces->global_iface_path) < 0) { 3669 if (errno == ENOTEMPTY) { 3670 wpa_printf(MSG_DEBUG, "Control interface " 3671 "directory not empty - leaving it " 3672 "behind"); 3673 } else { 3674 wpa_printf(MSG_ERROR, 3675 "rmdir[ctrl_interface=%s]: %s", 3676 interfaces->global_iface_path, 3677 strerror(errno)); 3678 } 3679 } 3680#endif /* CONFIG_CTRL_IFACE_UDP */ 3681 } 3682 3683 os_free(interfaces->global_iface_path); 3684 interfaces->global_iface_path = NULL; 3685 3686 dl_list_for_each_safe(dst, prev, &interfaces->global_ctrl_dst, 3687 struct wpa_ctrl_dst, list) 3688 os_free(dst); 3689} 3690 3691 3692static void hostapd_ctrl_iface_send(struct hostapd_data *hapd, int level, 3693 enum wpa_msg_type type, 3694 const char *buf, size_t len) 3695{ 3696 struct wpa_ctrl_dst *dst, *next; 3697 struct dl_list *ctrl_dst; 3698 struct msghdr msg; 3699 int idx; 3700 struct iovec io[2]; 3701 char levelstr[10]; 3702 int s; 3703 3704 if (type != WPA_MSG_ONLY_GLOBAL) { 3705 s = hapd->ctrl_sock; 3706 ctrl_dst = &hapd->ctrl_dst; 3707 } else { 3708 s = hapd->iface->interfaces->global_ctrl_sock; 3709 ctrl_dst = &hapd->iface->interfaces->global_ctrl_dst; 3710 } 3711 3712 if (s < 0 || dl_list_empty(ctrl_dst)) 3713 return; 3714 3715 os_snprintf(levelstr, sizeof(levelstr), "<%d>", level); 3716 io[0].iov_base = levelstr; 3717 io[0].iov_len = os_strlen(levelstr); 3718 io[1].iov_base = (char *) buf; 3719 io[1].iov_len = len; 3720 os_memset(&msg, 0, sizeof(msg)); 3721 msg.msg_iov = io; 3722 msg.msg_iovlen = 2; 3723 3724 idx = 0; 3725 dl_list_for_each_safe(dst, next, ctrl_dst, struct wpa_ctrl_dst, list) { 3726 if (level >= dst->debug_level) { 3727 sockaddr_print(MSG_DEBUG, "CTRL_IFACE monitor send", 3728 &dst->addr, dst->addrlen); 3729 msg.msg_name = &dst->addr; 3730 msg.msg_namelen = dst->addrlen; 3731 if (sendmsg(s, &msg, 0) < 0) { 3732 int _errno = errno; 3733 wpa_printf(MSG_INFO, "CTRL_IFACE monitor[%d]: " 3734 "%d - %s", 3735 idx, errno, strerror(errno)); 3736 dst->errors++; 3737 if (dst->errors > 10 || _errno == ENOENT) { 3738 if (type != WPA_MSG_ONLY_GLOBAL) 3739 hostapd_ctrl_iface_detach( 3740 hapd, &dst->addr, 3741 dst->addrlen); 3742 else 3743 hostapd_global_ctrl_iface_detach( 3744 hapd->iface->interfaces, 3745 &dst->addr, 3746 dst->addrlen); 3747 } 3748 } else 3749 dst->errors = 0; 3750 } 3751 idx++; 3752 } 3753} 3754 3755#endif /* CONFIG_NATIVE_WINDOWS */ 3756