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