hostapd/ctrl_iface.c

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