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 #ifdef CONFIG_MBO
1324         } else if (os_strcasecmp(cmd, "mbo_assoc_disallow") == 0) {
1325                 int val;
1326
1327                 if (!hapd->conf->mbo_enabled)
1328                         return -1;
1329
1330                 val = atoi(value);
1331                 if (val < 0 || val > 1)
1332                         return -1;
1333
1334                 hapd->mbo_assoc_disallow = val;
1335                 ieee802_11_update_beacons(hapd->iface);
1336
1337                 /*
1338                  * TODO: Need to configure drivers that do AP MLME offload with
1339                  * disallowing station logic.
1340                  */
1341 #endif /* CONFIG_MBO */
1342         } else {
1343                 struct sta_info *sta;
1344                 struct vlan_description vlan_id;
1345
1346                 ret = hostapd_set_iface(hapd->iconf, hapd->conf, cmd, value);
1347                 if (ret)
1348                         return ret;
1349
1350                 if (os_strcasecmp(cmd, "deny_mac_file") == 0) {
1351                         for (sta = hapd->sta_list; sta; sta = sta->next) {
1352                                 if (hostapd_maclist_found(
1353                                             hapd->conf->deny_mac,
1354                                             hapd->conf->num_deny_mac, sta->addr,
1355                                             &vlan_id) &&
1356                                     (!vlan_id.notempty ||
1357                                      !vlan_compare(&vlan_id, sta->vlan_desc)))
1358                                         ap_sta_disconnect(
1359                                                 hapd, sta, sta->addr,
1360                                                 WLAN_REASON_UNSPECIFIED);
1361                         }
1362                 } else if (hapd->conf->macaddr_acl == DENY_UNLESS_ACCEPTED &&
1363                            os_strcasecmp(cmd, "accept_mac_file") == 0) {
1364                         for (sta = hapd->sta_list; sta; sta = sta->next) {
1365                                 if (!hostapd_maclist_found(
1366                                             hapd->conf->accept_mac,
1367                                             hapd->conf->num_accept_mac,
1368                                             sta->addr, &vlan_id) ||
1369                                     (vlan_id.notempty &&
1370                                      vlan_compare(&vlan_id, sta->vlan_desc)))
1371                                         ap_sta_disconnect(
1372                                                 hapd, sta, sta->addr,
1373                                                 WLAN_REASON_UNSPECIFIED);
1374                         }
1375                 }
1376         }
1377
1378         return ret;
1379 }
1380
1381
1382 static int hostapd_ctrl_iface_get(struct hostapd_data *hapd, char *cmd,
1383                                   char *buf, size_t buflen)
1384 {
1385         int res;
1386
1387         wpa_printf(MSG_DEBUG, "CTRL_IFACE GET '%s'", cmd);
1388
1389         if (os_strcmp(cmd, "version") == 0) {
1390                 res = os_snprintf(buf, buflen, "%s", VERSION_STR);
1391                 if (os_snprintf_error(buflen, res))
1392                         return -1;
1393                 return res;
1394         } else if (os_strcmp(cmd, "tls_library") == 0) {
1395                 res = tls_get_library_version(buf, buflen);
1396                 if (os_snprintf_error(buflen, res))
1397                         return -1;
1398                 return res;
1399         }
1400
1401         return -1;
1402 }
1403
1404
1405 static int hostapd_ctrl_iface_enable(struct hostapd_iface *iface)
1406 {
1407         if (hostapd_enable_iface(iface) < 0) {
1408                 wpa_printf(MSG_ERROR, "Enabling of interface failed");
1409                 return -1;
1410         }
1411         return 0;
1412 }
1413
1414
1415 static int hostapd_ctrl_iface_reload(struct hostapd_iface *iface)
1416 {
1417         if (hostapd_reload_iface(iface) < 0) {
1418                 wpa_printf(MSG_ERROR, "Reloading of interface failed");
1419                 return -1;
1420         }
1421         return 0;
1422 }
1423
1424
1425 static int hostapd_ctrl_iface_disable(struct hostapd_iface *iface)
1426 {
1427         if (hostapd_disable_iface(iface) < 0) {
1428                 wpa_printf(MSG_ERROR, "Disabling of interface failed");
1429                 return -1;
1430         }
1431         return 0;
1432 }
1433
1434
1435 #ifdef CONFIG_TESTING_OPTIONS
1436
1437 static int hostapd_ctrl_iface_radar(struct hostapd_data *hapd, char *cmd)
1438 {
1439         union wpa_event_data data;
1440         char *pos, *param;
1441         enum wpa_event_type event;
1442
1443         wpa_printf(MSG_DEBUG, "RADAR TEST: %s", cmd);
1444
1445         os_memset(&data, 0, sizeof(data));
1446
1447         param = os_strchr(cmd, ' ');
1448         if (param == NULL)
1449                 return -1;
1450         *param++ = '\0';
1451
1452         if (os_strcmp(cmd, "DETECTED") == 0)
1453                 event = EVENT_DFS_RADAR_DETECTED;
1454         else if (os_strcmp(cmd, "CAC-FINISHED") == 0)
1455                 event = EVENT_DFS_CAC_FINISHED;
1456         else if (os_strcmp(cmd, "CAC-ABORTED") == 0)
1457                 event = EVENT_DFS_CAC_ABORTED;
1458         else if (os_strcmp(cmd, "NOP-FINISHED") == 0)
1459                 event = EVENT_DFS_NOP_FINISHED;
1460         else {
1461                 wpa_printf(MSG_DEBUG, "Unsupported RADAR test command: %s",
1462                            cmd);
1463                 return -1;
1464         }
1465
1466         pos = os_strstr(param, "freq=");
1467         if (pos)
1468                 data.dfs_event.freq = atoi(pos + 5);
1469
1470         pos = os_strstr(param, "ht_enabled=1");
1471         if (pos)
1472                 data.dfs_event.ht_enabled = 1;
1473
1474         pos = os_strstr(param, "chan_offset=");
1475         if (pos)
1476                 data.dfs_event.chan_offset = atoi(pos + 12);
1477
1478         pos = os_strstr(param, "chan_width=");
1479         if (pos)
1480                 data.dfs_event.chan_width = atoi(pos + 11);
1481
1482         pos = os_strstr(param, "cf1=");
1483         if (pos)
1484                 data.dfs_event.cf1 = atoi(pos + 4);
1485
1486         pos = os_strstr(param, "cf2=");
1487         if (pos)
1488                 data.dfs_event.cf2 = atoi(pos + 4);
1489
1490         wpa_supplicant_event(hapd, event, &data);
1491
1492         return 0;
1493 }
1494
1495
1496 static int hostapd_ctrl_iface_mgmt_tx(struct hostapd_data *hapd, char *cmd)
1497 {
1498         size_t len;
1499         u8 *buf;
1500         int res;
1501
1502         wpa_printf(MSG_DEBUG, "External MGMT TX: %s", cmd);
1503
1504         len = os_strlen(cmd);
1505         if (len & 1)
1506                 return -1;
1507         len /= 2;
1508
1509         buf = os_malloc(len);
1510         if (buf == NULL)
1511                 return -1;
1512
1513         if (hexstr2bin(cmd, buf, len) < 0) {
1514                 os_free(buf);
1515                 return -1;
1516         }
1517
1518         res = hostapd_drv_send_mlme(hapd, buf, len, 0);
1519         os_free(buf);
1520         return res;
1521 }
1522
1523
1524 static int hostapd_ctrl_iface_eapol_rx(struct hostapd_data *hapd, char *cmd)
1525 {
1526         char *pos;
1527         u8 src[ETH_ALEN], *buf;
1528         int used;
1529         size_t len;
1530
1531         wpa_printf(MSG_DEBUG, "External EAPOL RX: %s", cmd);
1532
1533         pos = cmd;
1534         used = hwaddr_aton2(pos, src);
1535         if (used < 0)
1536                 return -1;
1537         pos += used;
1538         while (*pos == ' ')
1539                 pos++;
1540
1541         len = os_strlen(pos);
1542         if (len & 1)
1543                 return -1;
1544         len /= 2;
1545
1546         buf = os_malloc(len);
1547         if (buf == NULL)
1548                 return -1;
1549
1550         if (hexstr2bin(pos, buf, len) < 0) {
1551                 os_free(buf);
1552                 return -1;
1553         }
1554
1555         ieee802_1x_receive(hapd, src, buf, len);
1556         os_free(buf);
1557
1558         return 0;
1559 }
1560
1561
1562 static u16 ipv4_hdr_checksum(const void *buf, size_t len)
1563 {
1564         size_t i;
1565         u32 sum = 0;
1566         const u16 *pos = buf;
1567
1568         for (i = 0; i < len / 2; i++)
1569                 sum += *pos++;
1570
1571         while (sum >> 16)
1572                 sum = (sum & 0xffff) + (sum >> 16);
1573
1574         return sum ^ 0xffff;
1575 }
1576
1577
1578 #define HWSIM_PACKETLEN 1500
1579 #define HWSIM_IP_LEN (HWSIM_PACKETLEN - sizeof(struct ether_header))
1580
1581 void hostapd_data_test_rx(void *ctx, const u8 *src_addr, const u8 *buf,
1582                           size_t len)
1583 {
1584         struct hostapd_data *hapd = ctx;
1585         const struct ether_header *eth;
1586         struct iphdr ip;
1587         const u8 *pos;
1588         unsigned int i;
1589
1590         if (len != HWSIM_PACKETLEN)
1591                 return;
1592
1593         eth = (const struct ether_header *) buf;
1594         os_memcpy(&ip, eth + 1, sizeof(ip));
1595         pos = &buf[sizeof(*eth) + sizeof(ip)];
1596
1597         if (ip.ihl != 5 || ip.version != 4 ||
1598             ntohs(ip.tot_len) != HWSIM_IP_LEN)
1599                 return;
1600
1601         for (i = 0; i < HWSIM_IP_LEN - sizeof(ip); i++) {
1602                 if (*pos != (u8) i)
1603                         return;
1604                 pos++;
1605         }
1606
1607         wpa_msg(hapd->msg_ctx, MSG_INFO, "DATA-TEST-RX " MACSTR " " MACSTR,
1608                 MAC2STR(eth->ether_dhost), MAC2STR(eth->ether_shost));
1609 }
1610
1611
1612 static int hostapd_ctrl_iface_data_test_config(struct hostapd_data *hapd,
1613                                                char *cmd)
1614 {
1615         int enabled = atoi(cmd);
1616         char *pos;
1617         const char *ifname;
1618
1619         if (!enabled) {
1620                 if (hapd->l2_test) {
1621                         l2_packet_deinit(hapd->l2_test);
1622                         hapd->l2_test = NULL;
1623                         wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
1624                                 "test data: Disabled");
1625                 }
1626                 return 0;
1627         }
1628
1629         if (hapd->l2_test)
1630                 return 0;
1631
1632         pos = os_strstr(cmd, " ifname=");
1633         if (pos)
1634                 ifname = pos + 8;
1635         else
1636                 ifname = hapd->conf->iface;
1637
1638         hapd->l2_test = l2_packet_init(ifname, hapd->own_addr,
1639                                         ETHERTYPE_IP, hostapd_data_test_rx,
1640                                         hapd, 1);
1641         if (hapd->l2_test == NULL)
1642                 return -1;
1643
1644         wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: Enabled");
1645
1646         return 0;
1647 }
1648
1649
1650 static int hostapd_ctrl_iface_data_test_tx(struct hostapd_data *hapd, char *cmd)
1651 {
1652         u8 dst[ETH_ALEN], src[ETH_ALEN];
1653         char *pos;
1654         int used;
1655         long int val;
1656         u8 tos;
1657         u8 buf[2 + HWSIM_PACKETLEN];
1658         struct ether_header *eth;
1659         struct iphdr *ip;
1660         u8 *dpos;
1661         unsigned int i;
1662
1663         if (hapd->l2_test == NULL)
1664                 return -1;
1665
1666         /* format: <dst> <src> <tos> */
1667
1668         pos = cmd;
1669         used = hwaddr_aton2(pos, dst);
1670         if (used < 0)
1671                 return -1;
1672         pos += used;
1673         while (*pos == ' ')
1674                 pos++;
1675         used = hwaddr_aton2(pos, src);
1676         if (used < 0)
1677                 return -1;
1678         pos += used;
1679
1680         val = strtol(pos, NULL, 0);
1681         if (val < 0 || val > 0xff)
1682                 return -1;
1683         tos = val;
1684
1685         eth = (struct ether_header *) &buf[2];
1686         os_memcpy(eth->ether_dhost, dst, ETH_ALEN);
1687         os_memcpy(eth->ether_shost, src, ETH_ALEN);
1688         eth->ether_type = htons(ETHERTYPE_IP);
1689         ip = (struct iphdr *) (eth + 1);
1690         os_memset(ip, 0, sizeof(*ip));
1691         ip->ihl = 5;
1692         ip->version = 4;
1693         ip->ttl = 64;
1694         ip->tos = tos;
1695         ip->tot_len = htons(HWSIM_IP_LEN);
1696         ip->protocol = 1;
1697         ip->saddr = htonl(192U << 24 | 168 << 16 | 1 << 8 | 1);
1698         ip->daddr = htonl(192U << 24 | 168 << 16 | 1 << 8 | 2);
1699         ip->check = ipv4_hdr_checksum(ip, sizeof(*ip));
1700         dpos = (u8 *) (ip + 1);
1701         for (i = 0; i < HWSIM_IP_LEN - sizeof(*ip); i++)
1702                 *dpos++ = i;
1703
1704         if (l2_packet_send(hapd->l2_test, dst, ETHERTYPE_IP, &buf[2],
1705                            HWSIM_PACKETLEN) < 0)
1706                 return -1;
1707
1708         wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: TX dst=" MACSTR
1709                 " src=" MACSTR " tos=0x%x", MAC2STR(dst), MAC2STR(src), tos);
1710
1711         return 0;
1712 }
1713
1714
1715 static int hostapd_ctrl_iface_data_test_frame(struct hostapd_data *hapd,
1716                                               char *cmd)
1717 {
1718         u8 *buf;
1719         struct ether_header *eth;
1720         struct l2_packet_data *l2 = NULL;
1721         size_t len;
1722         u16 ethertype;
1723         int res = -1;
1724         const char *ifname = hapd->conf->iface;
1725
1726         if (os_strncmp(cmd, "ifname=", 7) == 0) {
1727                 cmd += 7;
1728                 ifname = cmd;
1729                 cmd = os_strchr(cmd, ' ');
1730                 if (cmd == NULL)
1731                         return -1;
1732                 *cmd++ = '\0';
1733         }
1734
1735         len = os_strlen(cmd);
1736         if (len & 1 || len < ETH_HLEN * 2)
1737                 return -1;
1738         len /= 2;
1739
1740         buf = os_malloc(len);
1741         if (buf == NULL)
1742                 return -1;
1743
1744         if (hexstr2bin(cmd, buf, len) < 0)
1745                 goto done;
1746
1747         eth = (struct ether_header *) buf;
1748         ethertype = ntohs(eth->ether_type);
1749
1750         l2 = l2_packet_init(ifname, hapd->own_addr, ethertype,
1751                             hostapd_data_test_rx, hapd, 1);
1752         if (l2 == NULL)
1753                 goto done;
1754
1755         res = l2_packet_send(l2, eth->ether_dhost, ethertype, buf, len);
1756         wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: TX frame res=%d", res);
1757 done:
1758         if (l2)
1759                 l2_packet_deinit(l2);
1760         os_free(buf);
1761
1762         return res < 0 ? -1 : 0;
1763 }
1764
1765
1766 static int hostapd_ctrl_test_alloc_fail(struct hostapd_data *hapd, char *cmd)
1767 {
1768 #ifdef WPA_TRACE_BFD
1769         extern char wpa_trace_fail_func[256];
1770         extern unsigned int wpa_trace_fail_after;
1771         char *pos;
1772
1773         wpa_trace_fail_after = atoi(cmd);
1774         pos = os_strchr(cmd, ':');
1775         if (pos) {
1776                 pos++;
1777                 os_strlcpy(wpa_trace_fail_func, pos,
1778                            sizeof(wpa_trace_fail_func));
1779         } else {
1780                 wpa_trace_fail_after = 0;
1781         }
1782
1783         return 0;
1784 #else /* WPA_TRACE_BFD */
1785         return -1;
1786 #endif /* WPA_TRACE_BFD */
1787 }
1788
1789
1790 static int hostapd_ctrl_get_alloc_fail(struct hostapd_data *hapd,
1791                                        char *buf, size_t buflen)
1792 {
1793 #ifdef WPA_TRACE_BFD
1794         extern char wpa_trace_fail_func[256];
1795         extern unsigned int wpa_trace_fail_after;
1796
1797         return os_snprintf(buf, buflen, "%u:%s", wpa_trace_fail_after,
1798                            wpa_trace_fail_func);
1799 #else /* WPA_TRACE_BFD */
1800         return -1;
1801 #endif /* WPA_TRACE_BFD */
1802 }
1803
1804
1805 static int hostapd_ctrl_test_fail(struct hostapd_data *hapd, char *cmd)
1806 {
1807 #ifdef WPA_TRACE_BFD
1808         extern char wpa_trace_test_fail_func[256];
1809         extern unsigned int wpa_trace_test_fail_after;
1810         char *pos;
1811
1812         wpa_trace_test_fail_after = atoi(cmd);
1813         pos = os_strchr(cmd, ':');
1814         if (pos) {
1815                 pos++;
1816                 os_strlcpy(wpa_trace_test_fail_func, pos,
1817                            sizeof(wpa_trace_test_fail_func));
1818         } else {
1819                 wpa_trace_test_fail_after = 0;
1820         }
1821
1822         return 0;
1823 #else /* WPA_TRACE_BFD */
1824         return -1;
1825 #endif /* WPA_TRACE_BFD */
1826 }
1827
1828
1829 static int hostapd_ctrl_get_fail(struct hostapd_data *hapd,
1830                                  char *buf, size_t buflen)
1831 {
1832 #ifdef WPA_TRACE_BFD
1833         extern char wpa_trace_test_fail_func[256];
1834         extern unsigned int wpa_trace_test_fail_after;
1835
1836         return os_snprintf(buf, buflen, "%u:%s", wpa_trace_test_fail_after,
1837                            wpa_trace_test_fail_func);
1838 #else /* WPA_TRACE_BFD */
1839         return -1;
1840 #endif /* WPA_TRACE_BFD */
1841 }
1842
1843 #endif /* CONFIG_TESTING_OPTIONS */
1844
1845
1846 static int hostapd_ctrl_iface_chan_switch(struct hostapd_iface *iface,
1847                                           char *pos)
1848 {
1849 #ifdef NEED_AP_MLME
1850         struct csa_settings settings;
1851         int ret;
1852         unsigned int i;
1853
1854         ret = hostapd_parse_csa_settings(pos, &settings);
1855         if (ret)
1856                 return ret;
1857
1858         for (i = 0; i < iface->num_bss; i++) {
1859                 ret = hostapd_switch_channel(iface->bss[i], &settings);
1860                 if (ret) {
1861                         /* FIX: What do we do if CSA fails in the middle of
1862                          * submitting multi-BSS CSA requests? */
1863                         return ret;
1864                 }
1865         }
1866
1867         return 0;
1868 #else /* NEED_AP_MLME */
1869         return -1;
1870 #endif /* NEED_AP_MLME */
1871 }
1872
1873
1874 static int hostapd_ctrl_iface_mib(struct hostapd_data *hapd, char *reply,
1875                                   int reply_size, const char *param)
1876 {
1877 #ifdef RADIUS_SERVER
1878         if (os_strcmp(param, "radius_server") == 0) {
1879                 return radius_server_get_mib(hapd->radius_srv, reply,
1880                                              reply_size);
1881         }
1882 #endif /* RADIUS_SERVER */
1883         return -1;
1884 }
1885
1886
1887 static int hostapd_ctrl_iface_vendor(struct hostapd_data *hapd, char *cmd,
1888                                      char *buf, size_t buflen)
1889 {
1890         int ret;
1891         char *pos;
1892         u8 *data = NULL;
1893         unsigned int vendor_id, subcmd;
1894         struct wpabuf *reply;
1895         size_t data_len = 0;
1896
1897         /* cmd: <vendor id> <subcommand id> [<hex formatted data>] */
1898         vendor_id = strtoul(cmd, &pos, 16);
1899         if (!isblank((unsigned char) *pos))
1900                 return -EINVAL;
1901
1902         subcmd = strtoul(pos, &pos, 10);
1903
1904         if (*pos != '\0') {
1905                 if (!isblank((unsigned char) *pos++))
1906                         return -EINVAL;
1907                 data_len = os_strlen(pos);
1908         }
1909
1910         if (data_len) {
1911                 data_len /= 2;
1912                 data = os_malloc(data_len);
1913                 if (!data)
1914                         return -ENOBUFS;
1915
1916                 if (hexstr2bin(pos, data, data_len)) {
1917                         wpa_printf(MSG_DEBUG,
1918                                    "Vendor command: wrong parameter format");
1919                         os_free(data);
1920                         return -EINVAL;
1921                 }
1922         }
1923
1924         reply = wpabuf_alloc((buflen - 1) / 2);
1925         if (!reply) {
1926                 os_free(data);
1927                 return -ENOBUFS;
1928         }
1929
1930         ret = hostapd_drv_vendor_cmd(hapd, vendor_id, subcmd, data, data_len,
1931                                      reply);
1932
1933         if (ret == 0)
1934                 ret = wpa_snprintf_hex(buf, buflen, wpabuf_head_u8(reply),
1935                                        wpabuf_len(reply));
1936
1937         wpabuf_free(reply);
1938         os_free(data);
1939
1940         return ret;
1941 }
1942
1943
1944 static int hostapd_ctrl_iface_eapol_reauth(struct hostapd_data *hapd,
1945                                            const char *cmd)
1946 {
1947         u8 addr[ETH_ALEN];
1948         struct sta_info *sta;
1949
1950         if (hwaddr_aton(cmd, addr))
1951                 return -1;
1952
1953         sta = ap_get_sta(hapd, addr);
1954         if (!sta || !sta->eapol_sm)
1955                 return -1;
1956
1957         eapol_auth_reauthenticate(sta->eapol_sm);
1958         return 0;
1959 }
1960
1961
1962 static int hostapd_ctrl_iface_eapol_set(struct hostapd_data *hapd, char *cmd)
1963 {
1964         u8 addr[ETH_ALEN];
1965         struct sta_info *sta;
1966         char *pos = cmd, *param;
1967
1968         if (hwaddr_aton(pos, addr) || pos[17] != ' ')
1969                 return -1;
1970         pos += 18;
1971         param = pos;
1972         pos = os_strchr(pos, ' ');
1973         if (!pos)
1974                 return -1;
1975         *pos++ = '\0';
1976
1977         sta = ap_get_sta(hapd, addr);
1978         if (!sta || !sta->eapol_sm)
1979                 return -1;
1980
1981         return eapol_auth_set_conf(sta->eapol_sm, param, pos);
1982 }
1983
1984
1985 static int hostapd_ctrl_iface_log_level(struct hostapd_data *hapd, char *cmd,
1986                                         char *buf, size_t buflen)
1987 {
1988         char *pos, *end, *stamp;
1989         int ret;
1990
1991         /* cmd: "LOG_LEVEL [<level>]" */
1992         if (*cmd == '\0') {
1993                 pos = buf;
1994                 end = buf + buflen;
1995                 ret = os_snprintf(pos, end - pos, "Current level: %s\n"
1996                                   "Timestamp: %d\n",
1997                                   debug_level_str(wpa_debug_level),
1998                                   wpa_debug_timestamp);
1999                 if (os_snprintf_error(end - pos, ret))
2000                         ret = 0;
2001
2002                 return ret;
2003         }
2004
2005         while (*cmd == ' ')
2006                 cmd++;
2007
2008         stamp = os_strchr(cmd, ' ');
2009         if (stamp) {
2010                 *stamp++ = '\0';
2011                 while (*stamp == ' ') {
2012                         stamp++;
2013                 }
2014         }
2015
2016         if (os_strlen(cmd)) {
2017                 int level = str_to_debug_level(cmd);
2018                 if (level < 0)
2019                         return -1;
2020                 wpa_debug_level = level;
2021         }
2022
2023         if (stamp && os_strlen(stamp))
2024                 wpa_debug_timestamp = atoi(stamp);
2025
2026         os_memcpy(buf, "OK\n", 3);
2027         return 3;
2028 }
2029
2030
2031 #ifdef NEED_AP_MLME
2032 static int hostapd_ctrl_iface_track_sta_list(struct hostapd_data *hapd,
2033                                              char *buf, size_t buflen)
2034 {
2035         struct hostapd_iface *iface = hapd->iface;
2036         char *pos, *end;
2037         struct hostapd_sta_info *info;
2038         struct os_reltime now;
2039
2040         sta_track_expire(iface, 0);
2041
2042         pos = buf;
2043         end = buf + buflen;
2044
2045         os_get_reltime(&now);
2046         dl_list_for_each_reverse(info, &iface->sta_seen,
2047                                  struct hostapd_sta_info, list) {
2048                 struct os_reltime age;
2049                 int ret;
2050
2051                 os_reltime_sub(&now, &info->last_seen, &age);
2052                 ret = os_snprintf(pos, end - pos, MACSTR " %u\n",
2053                                   MAC2STR(info->addr), (unsigned int) age.sec);
2054                 if (os_snprintf_error(end - pos, ret))
2055                         break;
2056                 pos += ret;
2057         }
2058
2059         return pos - buf;
2060 }
2061 #endif /* NEED_AP_MLME */
2062
2063
2064 static int hostapd_ctrl_iface_receive_process(struct hostapd_data *hapd,
2065                                               char *buf, char *reply,
2066                                               int reply_size,
2067                                               struct sockaddr_un *from,
2068                                               socklen_t fromlen)
2069 {
2070         int reply_len, res;
2071
2072         os_memcpy(reply, "OK\n", 3);
2073         reply_len = 3;
2074
2075         if (os_strcmp(buf, "PING") == 0) {
2076                 os_memcpy(reply, "PONG\n", 5);
2077                 reply_len = 5;
2078         } else if (os_strncmp(buf, "RELOG", 5) == 0) {
2079                 if (wpa_debug_reopen_file() < 0)
2080                         reply_len = -1;
2081         } else if (os_strcmp(buf, "STATUS") == 0) {
2082                 reply_len = hostapd_ctrl_iface_status(hapd, reply,
2083                                                       reply_size);
2084         } else if (os_strcmp(buf, "STATUS-DRIVER") == 0) {
2085                 reply_len = hostapd_drv_status(hapd, reply, reply_size);
2086         } else if (os_strcmp(buf, "MIB") == 0) {
2087                 reply_len = ieee802_11_get_mib(hapd, reply, reply_size);
2088                 if (reply_len >= 0) {
2089                         res = wpa_get_mib(hapd->wpa_auth, reply + reply_len,
2090                                           reply_size - reply_len);
2091                         if (res < 0)
2092                                 reply_len = -1;
2093                         else
2094                                 reply_len += res;
2095                 }
2096                 if (reply_len >= 0) {
2097                         res = ieee802_1x_get_mib(hapd, reply + reply_len,
2098                                                  reply_size - reply_len);
2099                         if (res < 0)
2100                                 reply_len = -1;
2101                         else
2102                                 reply_len += res;
2103                 }
2104 #ifndef CONFIG_NO_RADIUS
2105                 if (reply_len >= 0) {
2106                         res = radius_client_get_mib(hapd->radius,
2107                                                     reply + reply_len,
2108                                                     reply_size - reply_len);
2109                         if (res < 0)
2110                                 reply_len = -1;
2111                         else
2112                                 reply_len += res;
2113                 }
2114 #endif /* CONFIG_NO_RADIUS */
2115         } else if (os_strncmp(buf, "MIB ", 4) == 0) {
2116                 reply_len = hostapd_ctrl_iface_mib(hapd, reply, reply_size,
2117                                                    buf + 4);
2118         } else if (os_strcmp(buf, "STA-FIRST") == 0) {
2119                 reply_len = hostapd_ctrl_iface_sta_first(hapd, reply,
2120                                                          reply_size);
2121         } else if (os_strncmp(buf, "STA ", 4) == 0) {
2122                 reply_len = hostapd_ctrl_iface_sta(hapd, buf + 4, reply,
2123                                                    reply_size);
2124         } else if (os_strncmp(buf, "STA-NEXT ", 9) == 0) {
2125                 reply_len = hostapd_ctrl_iface_sta_next(hapd, buf + 9, reply,
2126                                                         reply_size);
2127         } else if (os_strcmp(buf, "ATTACH") == 0) {
2128                 if (hostapd_ctrl_iface_attach(hapd, from, fromlen))
2129                         reply_len = -1;
2130         } else if (os_strcmp(buf, "DETACH") == 0) {
2131                 if (hostapd_ctrl_iface_detach(hapd, from, fromlen))
2132                         reply_len = -1;
2133         } else if (os_strncmp(buf, "LEVEL ", 6) == 0) {
2134                 if (hostapd_ctrl_iface_level(hapd, from, fromlen,
2135                                                     buf + 6))
2136                         reply_len = -1;
2137         } else if (os_strncmp(buf, "NEW_STA ", 8) == 0) {
2138                 if (hostapd_ctrl_iface_new_sta(hapd, buf + 8))
2139                         reply_len = -1;
2140         } else if (os_strncmp(buf, "DEAUTHENTICATE ", 15) == 0) {
2141                 if (hostapd_ctrl_iface_deauthenticate(hapd, buf + 15))
2142                         reply_len = -1;
2143         } else if (os_strncmp(buf, "DISASSOCIATE ", 13) == 0) {
2144                 if (hostapd_ctrl_iface_disassociate(hapd, buf + 13))
2145                         reply_len = -1;
2146         } else if (os_strcmp(buf, "STOP_AP") == 0) {
2147                 if (hostapd_ctrl_iface_stop_ap(hapd))
2148                         reply_len = -1;
2149 #ifdef CONFIG_IEEE80211W
2150 #ifdef NEED_AP_MLME
2151         } else if (os_strncmp(buf, "SA_QUERY ", 9) == 0) {
2152                 if (hostapd_ctrl_iface_sa_query(hapd, buf + 9))
2153                         reply_len = -1;
2154 #endif /* NEED_AP_MLME */
2155 #endif /* CONFIG_IEEE80211W */
2156 #ifdef CONFIG_WPS
2157         } else if (os_strncmp(buf, "WPS_PIN ", 8) == 0) {
2158                 if (hostapd_ctrl_iface_wps_pin(hapd, buf + 8))
2159                         reply_len = -1;
2160         } else if (os_strncmp(buf, "WPS_CHECK_PIN ", 14) == 0) {
2161                 reply_len = hostapd_ctrl_iface_wps_check_pin(
2162                         hapd, buf + 14, reply, reply_size);
2163         } else if (os_strcmp(buf, "WPS_PBC") == 0) {
2164                 if (hostapd_wps_button_pushed(hapd, NULL))
2165                         reply_len = -1;
2166         } else if (os_strcmp(buf, "WPS_CANCEL") == 0) {
2167                 if (hostapd_wps_cancel(hapd))
2168                         reply_len = -1;
2169         } else if (os_strncmp(buf, "WPS_AP_PIN ", 11) == 0) {
2170                 reply_len = hostapd_ctrl_iface_wps_ap_pin(hapd, buf + 11,
2171                                                           reply, reply_size);
2172         } else if (os_strncmp(buf, "WPS_CONFIG ", 11) == 0) {
2173                 if (hostapd_ctrl_iface_wps_config(hapd, buf + 11) < 0)
2174                         reply_len = -1;
2175         } else if (os_strncmp(buf, "WPS_GET_STATUS", 13) == 0) {
2176                 reply_len = hostapd_ctrl_iface_wps_get_status(hapd, reply,
2177                                                               reply_size);
2178 #ifdef CONFIG_WPS_NFC
2179         } else if (os_strncmp(buf, "WPS_NFC_TAG_READ ", 17) == 0) {
2180                 if (hostapd_ctrl_iface_wps_nfc_tag_read(hapd, buf + 17))
2181                         reply_len = -1;
2182         } else if (os_strncmp(buf, "WPS_NFC_CONFIG_TOKEN ", 21) == 0) {
2183                 reply_len = hostapd_ctrl_iface_wps_nfc_config_token(
2184                         hapd, buf + 21, reply, reply_size);
2185         } else if (os_strncmp(buf, "WPS_NFC_TOKEN ", 14) == 0) {
2186                 reply_len = hostapd_ctrl_iface_wps_nfc_token(
2187                         hapd, buf + 14, reply, reply_size);
2188         } else if (os_strncmp(buf, "NFC_GET_HANDOVER_SEL ", 21) == 0) {
2189                 reply_len = hostapd_ctrl_iface_nfc_get_handover_sel(
2190                         hapd, buf + 21, reply, reply_size);
2191         } else if (os_strncmp(buf, "NFC_REPORT_HANDOVER ", 20) == 0) {
2192                 if (hostapd_ctrl_iface_nfc_report_handover(hapd, buf + 20))
2193                         reply_len = -1;
2194 #endif /* CONFIG_WPS_NFC */
2195 #endif /* CONFIG_WPS */
2196 #ifdef CONFIG_INTERWORKING
2197         } else if (os_strncmp(buf, "SET_QOS_MAP_SET ", 16) == 0) {
2198                 if (hostapd_ctrl_iface_set_qos_map_set(hapd, buf + 16))
2199                         reply_len = -1;
2200         } else if (os_strncmp(buf, "SEND_QOS_MAP_CONF ", 18) == 0) {
2201                 if (hostapd_ctrl_iface_send_qos_map_conf(hapd, buf + 18))
2202                         reply_len = -1;
2203 #endif /* CONFIG_INTERWORKING */
2204 #ifdef CONFIG_HS20
2205         } else if (os_strncmp(buf, "HS20_WNM_NOTIF ", 15) == 0) {
2206                 if (hostapd_ctrl_iface_hs20_wnm_notif(hapd, buf + 15))
2207                         reply_len = -1;
2208         } else if (os_strncmp(buf, "HS20_DEAUTH_REQ ", 16) == 0) {
2209                 if (hostapd_ctrl_iface_hs20_deauth_req(hapd, buf + 16))
2210                         reply_len = -1;
2211 #endif /* CONFIG_HS20 */
2212 #ifdef CONFIG_WNM
2213         } else if (os_strncmp(buf, "DISASSOC_IMMINENT ", 18) == 0) {
2214                 if (hostapd_ctrl_iface_disassoc_imminent(hapd, buf + 18))
2215                         reply_len = -1;
2216         } else if (os_strncmp(buf, "ESS_DISASSOC ", 13) == 0) {
2217                 if (hostapd_ctrl_iface_ess_disassoc(hapd, buf + 13))
2218                         reply_len = -1;
2219         } else if (os_strncmp(buf, "BSS_TM_REQ ", 11) == 0) {
2220                 if (hostapd_ctrl_iface_bss_tm_req(hapd, buf + 11))
2221                         reply_len = -1;
2222 #endif /* CONFIG_WNM */
2223         } else if (os_strcmp(buf, "GET_CONFIG") == 0) {
2224                 reply_len = hostapd_ctrl_iface_get_config(hapd, reply,
2225                                                           reply_size);
2226         } else if (os_strncmp(buf, "SET ", 4) == 0) {
2227                 if (hostapd_ctrl_iface_set(hapd, buf + 4))
2228                         reply_len = -1;
2229         } else if (os_strncmp(buf, "GET ", 4) == 0) {
2230                 reply_len = hostapd_ctrl_iface_get(hapd, buf + 4, reply,
2231                                                    reply_size);
2232         } else if (os_strncmp(buf, "ENABLE", 6) == 0) {
2233                 if (hostapd_ctrl_iface_enable(hapd->iface))
2234                         reply_len = -1;
2235         } else if (os_strncmp(buf, "RELOAD", 6) == 0) {
2236                 if (hostapd_ctrl_iface_reload(hapd->iface))
2237                         reply_len = -1;
2238         } else if (os_strncmp(buf, "DISABLE", 7) == 0) {
2239                 if (hostapd_ctrl_iface_disable(hapd->iface))
2240                         reply_len = -1;
2241         } else if (os_strcmp(buf, "UPDATE_BEACON") == 0) {
2242                 if (ieee802_11_set_beacon(hapd))
2243                         reply_len = -1;
2244 #ifdef CONFIG_TESTING_OPTIONS
2245         } else if (os_strncmp(buf, "RADAR ", 6) == 0) {
2246                 if (hostapd_ctrl_iface_radar(hapd, buf + 6))
2247                         reply_len = -1;
2248         } else if (os_strncmp(buf, "MGMT_TX ", 8) == 0) {
2249                 if (hostapd_ctrl_iface_mgmt_tx(hapd, buf + 8))
2250                         reply_len = -1;
2251         } else if (os_strncmp(buf, "EAPOL_RX ", 9) == 0) {
2252                 if (hostapd_ctrl_iface_eapol_rx(hapd, buf + 9) < 0)
2253                         reply_len = -1;
2254         } else if (os_strncmp(buf, "DATA_TEST_CONFIG ", 17) == 0) {
2255                 if (hostapd_ctrl_iface_data_test_config(hapd, buf + 17) < 0)
2256                         reply_len = -1;
2257         } else if (os_strncmp(buf, "DATA_TEST_TX ", 13) == 0) {
2258                 if (hostapd_ctrl_iface_data_test_tx(hapd, buf + 13) < 0)
2259                         reply_len = -1;
2260         } else if (os_strncmp(buf, "DATA_TEST_FRAME ", 16) == 0) {
2261                 if (hostapd_ctrl_iface_data_test_frame(hapd, buf + 16) < 0)
2262                         reply_len = -1;
2263         } else if (os_strncmp(buf, "TEST_ALLOC_FAIL ", 16) == 0) {
2264                 if (hostapd_ctrl_test_alloc_fail(hapd, buf + 16) < 0)
2265                         reply_len = -1;
2266         } else if (os_strcmp(buf, "GET_ALLOC_FAIL") == 0) {
2267                 reply_len = hostapd_ctrl_get_alloc_fail(hapd, reply,
2268                                                         reply_size);
2269         } else if (os_strncmp(buf, "TEST_FAIL ", 10) == 0) {
2270                 if (hostapd_ctrl_test_fail(hapd, buf + 10) < 0)
2271                         reply_len = -1;
2272         } else if (os_strcmp(buf, "GET_FAIL") == 0) {
2273                 reply_len = hostapd_ctrl_get_fail(hapd, reply, reply_size);
2274 #endif /* CONFIG_TESTING_OPTIONS */
2275         } else if (os_strncmp(buf, "CHAN_SWITCH ", 12) == 0) {
2276                 if (hostapd_ctrl_iface_chan_switch(hapd->iface, buf + 12))
2277                         reply_len = -1;
2278         } else if (os_strncmp(buf, "VENDOR ", 7) == 0) {
2279                 reply_len = hostapd_ctrl_iface_vendor(hapd, buf + 7, reply,
2280                                                       reply_size);
2281         } else if (os_strcmp(buf, "ERP_FLUSH") == 0) {
2282                 ieee802_1x_erp_flush(hapd);
2283 #ifdef RADIUS_SERVER
2284                 radius_server_erp_flush(hapd->radius_srv);
2285 #endif /* RADIUS_SERVER */
2286         } else if (os_strncmp(buf, "EAPOL_REAUTH ", 13) == 0) {
2287                 if (hostapd_ctrl_iface_eapol_reauth(hapd, buf + 13))
2288                         reply_len = -1;
2289         } else if (os_strncmp(buf, "EAPOL_SET ", 10) == 0) {
2290                 if (hostapd_ctrl_iface_eapol_set(hapd, buf + 10))
2291                         reply_len = -1;
2292         } else if (os_strncmp(buf, "LOG_LEVEL", 9) == 0) {
2293                 reply_len = hostapd_ctrl_iface_log_level(
2294                         hapd, buf + 9, reply, reply_size);
2295 #ifdef NEED_AP_MLME
2296         } else if (os_strcmp(buf, "TRACK_STA_LIST") == 0) {
2297                 reply_len = hostapd_ctrl_iface_track_sta_list(
2298                         hapd, reply, reply_size);
2299 #endif /* NEED_AP_MLME */
2300         } else {
2301                 os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
2302                 reply_len = 16;
2303         }
2304
2305         if (reply_len < 0) {
2306                 os_memcpy(reply, "FAIL\n", 5);
2307                 reply_len = 5;
2308         }
2309
2310         return reply_len;
2311 }
2312
2313
2314 static void hostapd_ctrl_iface_receive(int sock, void *eloop_ctx,
2315                                        void *sock_ctx)
2316 {
2317         struct hostapd_data *hapd = eloop_ctx;
2318         char buf[4096];
2319         int res;
2320         struct sockaddr_un from;
2321         socklen_t fromlen = sizeof(from);
2322         char *reply;
2323         const int reply_size = 4096;
2324         int reply_len;
2325         int level = MSG_DEBUG;
2326
2327         res = recvfrom(sock, buf, sizeof(buf) - 1, 0,
2328                        (struct sockaddr *) &from, &fromlen);
2329         if (res < 0) {
2330                 wpa_printf(MSG_ERROR, "recvfrom(ctrl_iface): %s",
2331                            strerror(errno));
2332                 return;
2333         }
2334         buf[res] = '\0';
2335         if (os_strcmp(buf, "PING") == 0)
2336                 level = MSG_EXCESSIVE;
2337         wpa_hexdump_ascii(level, "RX ctrl_iface", (u8 *) buf, res);
2338
2339         reply = os_malloc(reply_size);
2340         if (reply == NULL) {
2341                 if (sendto(sock, "FAIL\n", 5, 0, (struct sockaddr *) &from,
2342                            fromlen) < 0) {
2343                         wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
2344                                    strerror(errno));
2345                 }
2346                 return;
2347         }
2348
2349         reply_len = hostapd_ctrl_iface_receive_process(hapd, buf,
2350                                                        reply, reply_size,
2351                                                        &from, fromlen);
2352
2353         if (sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from,
2354                    fromlen) < 0) {
2355                 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
2356                            strerror(errno));
2357         }
2358         os_free(reply);
2359 }
2360
2361
2362 static char * hostapd_ctrl_iface_path(struct hostapd_data *hapd)
2363 {
2364         char *buf;
2365         size_t len;
2366
2367         if (hapd->conf->ctrl_interface == NULL)
2368                 return NULL;
2369
2370         len = os_strlen(hapd->conf->ctrl_interface) +
2371                 os_strlen(hapd->conf->iface) + 2;
2372         buf = os_malloc(len);
2373         if (buf == NULL)
2374                 return NULL;
2375
2376         os_snprintf(buf, len, "%s/%s",
2377                     hapd->conf->ctrl_interface, hapd->conf->iface);
2378         buf[len - 1] = '\0';
2379         return buf;
2380 }
2381
2382
2383 static void hostapd_ctrl_iface_msg_cb(void *ctx, int level,
2384                                       enum wpa_msg_type type,
2385                                       const char *txt, size_t len)
2386 {
2387         struct hostapd_data *hapd = ctx;
2388         if (hapd == NULL)
2389                 return;
2390         hostapd_ctrl_iface_send(hapd, level, type, txt, len);
2391 }
2392
2393
2394 int hostapd_ctrl_iface_init(struct hostapd_data *hapd)
2395 {
2396         struct sockaddr_un addr;
2397         int s = -1;
2398         char *fname = NULL;
2399
2400         if (hapd->ctrl_sock > -1) {
2401                 wpa_printf(MSG_DEBUG, "ctrl_iface already exists!");
2402                 return 0;
2403         }
2404
2405         if (hapd->conf->ctrl_interface == NULL)
2406                 return 0;
2407
2408         if (mkdir(hapd->conf->ctrl_interface, S_IRWXU | S_IRWXG) < 0) {
2409                 if (errno == EEXIST) {
2410                         wpa_printf(MSG_DEBUG, "Using existing control "
2411                                    "interface directory.");
2412                 } else {
2413                         wpa_printf(MSG_ERROR, "mkdir[ctrl_interface]: %s",
2414                                    strerror(errno));
2415                         goto fail;
2416                 }
2417         }
2418
2419         if (hapd->conf->ctrl_interface_gid_set &&
2420             chown(hapd->conf->ctrl_interface, -1,
2421                   hapd->conf->ctrl_interface_gid) < 0) {
2422                 wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s",
2423                            strerror(errno));
2424                 return -1;
2425         }
2426
2427         if (!hapd->conf->ctrl_interface_gid_set &&
2428             hapd->iface->interfaces->ctrl_iface_group &&
2429             chown(hapd->conf->ctrl_interface, -1,
2430                   hapd->iface->interfaces->ctrl_iface_group) < 0) {
2431                 wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s",
2432                            strerror(errno));
2433                 return -1;
2434         }
2435
2436 #ifdef ANDROID
2437         /*
2438          * Android is using umask 0077 which would leave the control interface
2439          * directory without group access. This breaks things since Wi-Fi
2440          * framework assumes that this directory can be accessed by other
2441          * applications in the wifi group. Fix this by adding group access even
2442          * if umask value would prevent this.
2443          */
2444         if (chmod(hapd->conf->ctrl_interface, S_IRWXU | S_IRWXG) < 0) {
2445                 wpa_printf(MSG_ERROR, "CTRL: Could not chmod directory: %s",
2446                            strerror(errno));
2447                 /* Try to continue anyway */
2448         }
2449 #endif /* ANDROID */
2450
2451         if (os_strlen(hapd->conf->ctrl_interface) + 1 +
2452             os_strlen(hapd->conf->iface) >= sizeof(addr.sun_path))
2453                 goto fail;
2454
2455         s = socket(PF_UNIX, SOCK_DGRAM, 0);
2456         if (s < 0) {
2457                 wpa_printf(MSG_ERROR, "socket(PF_UNIX): %s", strerror(errno));
2458                 goto fail;
2459         }
2460
2461         os_memset(&addr, 0, sizeof(addr));
2462 #ifdef __FreeBSD__
2463         addr.sun_len = sizeof(addr);
2464 #endif /* __FreeBSD__ */
2465         addr.sun_family = AF_UNIX;
2466         fname = hostapd_ctrl_iface_path(hapd);
2467         if (fname == NULL)
2468                 goto fail;
2469         os_strlcpy(addr.sun_path, fname, sizeof(addr.sun_path));
2470         if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
2471                 wpa_printf(MSG_DEBUG, "ctrl_iface bind(PF_UNIX) failed: %s",
2472                            strerror(errno));
2473                 if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
2474                         wpa_printf(MSG_DEBUG, "ctrl_iface exists, but does not"
2475                                    " allow connections - assuming it was left"
2476                                    "over from forced program termination");
2477                         if (unlink(fname) < 0) {
2478                                 wpa_printf(MSG_ERROR,
2479                                            "Could not unlink existing ctrl_iface socket '%s': %s",
2480                                            fname, strerror(errno));
2481                                 goto fail;
2482                         }
2483                         if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) <
2484                             0) {
2485                                 wpa_printf(MSG_ERROR,
2486                                            "hostapd-ctrl-iface: bind(PF_UNIX): %s",
2487                                            strerror(errno));
2488                                 goto fail;
2489                         }
2490                         wpa_printf(MSG_DEBUG, "Successfully replaced leftover "
2491                                    "ctrl_iface socket '%s'", fname);
2492                 } else {
2493                         wpa_printf(MSG_INFO, "ctrl_iface exists and seems to "
2494                                    "be in use - cannot override it");
2495                         wpa_printf(MSG_INFO, "Delete '%s' manually if it is "
2496                                    "not used anymore", fname);
2497                         os_free(fname);
2498                         fname = NULL;
2499                         goto fail;
2500                 }
2501         }
2502
2503         if (hapd->conf->ctrl_interface_gid_set &&
2504             chown(fname, -1, hapd->conf->ctrl_interface_gid) < 0) {
2505                 wpa_printf(MSG_ERROR, "chown[ctrl_interface/ifname]: %s",
2506                            strerror(errno));
2507                 goto fail;
2508         }
2509
2510         if (!hapd->conf->ctrl_interface_gid_set &&
2511             hapd->iface->interfaces->ctrl_iface_group &&
2512             chown(fname, -1, hapd->iface->interfaces->ctrl_iface_group) < 0) {
2513                 wpa_printf(MSG_ERROR, "chown[ctrl_interface/ifname]: %s",
2514                            strerror(errno));
2515                 goto fail;
2516         }
2517
2518         if (chmod(fname, S_IRWXU | S_IRWXG) < 0) {
2519                 wpa_printf(MSG_ERROR, "chmod[ctrl_interface/ifname]: %s",
2520                            strerror(errno));
2521                 goto fail;
2522         }
2523         os_free(fname);
2524
2525         hapd->ctrl_sock = s;
2526         if (eloop_register_read_sock(s, hostapd_ctrl_iface_receive, hapd,
2527                                      NULL) < 0) {
2528                 hostapd_ctrl_iface_deinit(hapd);
2529                 return -1;
2530         }
2531         hapd->msg_ctx = hapd;
2532         wpa_msg_register_cb(hostapd_ctrl_iface_msg_cb);
2533
2534         return 0;
2535
2536 fail:
2537         if (s >= 0)
2538                 close(s);
2539         if (fname) {
2540                 unlink(fname);
2541                 os_free(fname);
2542         }
2543         return -1;
2544 }
2545
2546
2547 void hostapd_ctrl_iface_deinit(struct hostapd_data *hapd)
2548 {
2549         struct wpa_ctrl_dst *dst, *prev;
2550
2551         if (hapd->ctrl_sock > -1) {
2552                 char *fname;
2553                 eloop_unregister_read_sock(hapd->ctrl_sock);
2554                 close(hapd->ctrl_sock);
2555                 hapd->ctrl_sock = -1;
2556                 fname = hostapd_ctrl_iface_path(hapd);
2557                 if (fname)
2558                         unlink(fname);
2559                 os_free(fname);
2560
2561                 if (hapd->conf->ctrl_interface &&
2562                     rmdir(hapd->conf->ctrl_interface) < 0) {
2563                         if (errno == ENOTEMPTY) {
2564                                 wpa_printf(MSG_DEBUG, "Control interface "
2565                                            "directory not empty - leaving it "
2566                                            "behind");
2567                         } else {
2568                                 wpa_printf(MSG_ERROR,
2569                                            "rmdir[ctrl_interface=%s]: %s",
2570                                            hapd->conf->ctrl_interface,
2571                                            strerror(errno));
2572                         }
2573                 }
2574         }
2575
2576         dst = hapd->ctrl_dst;
2577         hapd->ctrl_dst = NULL;
2578         while (dst) {
2579                 prev = dst;
2580                 dst = dst->next;
2581                 os_free(prev);
2582         }
2583
2584 #ifdef CONFIG_TESTING_OPTIONS
2585         l2_packet_deinit(hapd->l2_test);
2586         hapd->l2_test = NULL;
2587 #endif /* CONFIG_TESTING_OPTIONS */
2588 }
2589
2590
2591 static int hostapd_ctrl_iface_add(struct hapd_interfaces *interfaces,
2592                                   char *buf)
2593 {
2594         if (hostapd_add_iface(interfaces, buf) < 0) {
2595                 wpa_printf(MSG_ERROR, "Adding interface %s failed", buf);
2596                 return -1;
2597         }
2598         return 0;
2599 }
2600
2601
2602 static int hostapd_ctrl_iface_remove(struct hapd_interfaces *interfaces,
2603                                      char *buf)
2604 {
2605         if (hostapd_remove_iface(interfaces, buf) < 0) {
2606                 wpa_printf(MSG_ERROR, "Removing interface %s failed", buf);
2607                 return -1;
2608         }
2609         return 0;
2610 }
2611
2612
2613 static int hostapd_global_ctrl_iface_attach(struct hapd_interfaces *interfaces,
2614                                             struct sockaddr_un *from,
2615                                             socklen_t fromlen)
2616 {
2617         struct wpa_ctrl_dst *dst;
2618
2619         dst = os_zalloc(sizeof(*dst));
2620         if (dst == NULL)
2621                 return -1;
2622         os_memcpy(&dst->addr, from, sizeof(struct sockaddr_un));
2623         dst->addrlen = fromlen;
2624         dst->debug_level = MSG_INFO;
2625         dst->next = interfaces->global_ctrl_dst;
2626         interfaces->global_ctrl_dst = dst;
2627         wpa_hexdump(MSG_DEBUG, "CTRL_IFACE monitor attached (global)",
2628                     from->sun_path,
2629                     fromlen - offsetof(struct sockaddr_un, sun_path));
2630         return 0;
2631 }
2632
2633
2634 static int hostapd_global_ctrl_iface_detach(struct hapd_interfaces *interfaces,
2635                                             struct sockaddr_un *from,
2636                                             socklen_t fromlen)
2637 {
2638         struct wpa_ctrl_dst *dst, *prev = NULL;
2639
2640         dst = interfaces->global_ctrl_dst;
2641         while (dst) {
2642                 if (fromlen == dst->addrlen &&
2643                     os_memcmp(from->sun_path, dst->addr.sun_path,
2644                               fromlen - offsetof(struct sockaddr_un, sun_path))
2645                     == 0) {
2646                         wpa_hexdump(MSG_DEBUG,
2647                                     "CTRL_IFACE monitor detached (global)",
2648                                     from->sun_path,
2649                                     fromlen -
2650                                     offsetof(struct sockaddr_un, sun_path));
2651                         if (prev == NULL)
2652                                 interfaces->global_ctrl_dst = dst->next;
2653                         else
2654                                 prev->next = dst->next;
2655                         os_free(dst);
2656                         return 0;
2657                 }
2658                 prev = dst;
2659                 dst = dst->next;
2660         }
2661         return -1;
2662 }
2663
2664
2665 static void hostapd_ctrl_iface_flush(struct hapd_interfaces *interfaces)
2666 {
2667 #ifdef CONFIG_WPS_TESTING
2668         wps_version_number = 0x20;
2669         wps_testing_dummy_cred = 0;
2670         wps_corrupt_pkhash = 0;
2671 #endif /* CONFIG_WPS_TESTING */
2672 }
2673
2674
2675 #ifdef CONFIG_FST
2676
2677 static int
2678 hostapd_global_ctrl_iface_fst_attach(struct hapd_interfaces *interfaces,
2679                                      const char *cmd)
2680 {
2681         char ifname[IFNAMSIZ + 1];
2682         struct fst_iface_cfg cfg;
2683         struct hostapd_data *hapd;
2684         struct fst_wpa_obj iface_obj;
2685
2686         if (!fst_parse_attach_command(cmd, ifname, sizeof(ifname), &cfg)) {
2687                 hapd = hostapd_get_iface(interfaces, ifname);
2688                 if (hapd) {
2689                         if (hapd->iface->fst) {
2690                                 wpa_printf(MSG_INFO, "FST: Already attached");
2691                                 return -1;
2692                         }
2693                         fst_hostapd_fill_iface_obj(hapd, &iface_obj);
2694                         hapd->iface->fst = fst_attach(ifname, hapd->own_addr,
2695                                                       &iface_obj, &cfg);
2696                         if (hapd->iface->fst)
2697                                 return 0;
2698                 }
2699         }
2700
2701         return -EINVAL;
2702 }
2703
2704
2705 static int
2706 hostapd_global_ctrl_iface_fst_detach(struct hapd_interfaces *interfaces,
2707                                      const char *cmd)
2708 {
2709         char ifname[IFNAMSIZ + 1];
2710         struct hostapd_data * hapd;
2711
2712         if (!fst_parse_detach_command(cmd, ifname, sizeof(ifname))) {
2713                 hapd = hostapd_get_iface(interfaces, ifname);
2714                 if (hapd) {
2715                         if (!fst_iface_detach(ifname)) {
2716                                 hapd->iface->fst = NULL;
2717                                 hapd->iface->fst_ies = NULL;
2718                                 return 0;
2719                         }
2720                 }
2721         }
2722
2723         return -EINVAL;
2724 }
2725
2726 #endif /* CONFIG_FST */
2727
2728
2729 static struct hostapd_data *
2730 hostapd_interfaces_get_hapd(struct hapd_interfaces *interfaces,
2731                             const char *ifname)
2732 {
2733         size_t i, j;
2734
2735         for (i = 0; i < interfaces->count; i++) {
2736                 struct hostapd_iface *iface = interfaces->iface[i];
2737
2738                 for (j = 0; j < iface->num_bss; j++) {
2739                         struct hostapd_data *hapd;
2740
2741                         hapd = iface->bss[j];
2742                         if (os_strcmp(ifname, hapd->conf->iface) == 0)
2743                                 return hapd;
2744                 }
2745         }
2746
2747         return NULL;
2748 }
2749
2750
2751 static int hostapd_ctrl_iface_dup_param(struct hostapd_data *src_hapd,
2752                                         struct hostapd_data *dst_hapd,
2753                                         const char *param)
2754 {
2755         int res;
2756         char *value;
2757
2758         value = os_zalloc(HOSTAPD_CLI_DUP_VALUE_MAX_LEN);
2759         if (!value) {
2760                 wpa_printf(MSG_ERROR,
2761                            "DUP: cannot allocate buffer to stringify %s",
2762                            param);
2763                 goto error_return;
2764         }
2765
2766         if (os_strcmp(param, "wpa") == 0) {
2767                 os_snprintf(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN, "%d",
2768                             src_hapd->conf->wpa);
2769         } else if (os_strcmp(param, "wpa_key_mgmt") == 0 &&
2770                    src_hapd->conf->wpa_key_mgmt) {
2771                 res = hostapd_ctrl_iface_get_key_mgmt(
2772                         src_hapd, value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN);
2773                 if (os_snprintf_error(HOSTAPD_CLI_DUP_VALUE_MAX_LEN, res))
2774                         goto error_stringify;
2775         } else if (os_strcmp(param, "wpa_pairwise") == 0 &&
2776                    src_hapd->conf->wpa_pairwise) {
2777                 res = wpa_write_ciphers(value,
2778                                         value + HOSTAPD_CLI_DUP_VALUE_MAX_LEN,
2779                                         src_hapd->conf->wpa_pairwise, " ");
2780                 if (res < 0)
2781                         goto error_stringify;
2782         } else if (os_strcmp(param, "rsn_pairwise") == 0 &&
2783                    src_hapd->conf->rsn_pairwise) {
2784                 res = wpa_write_ciphers(value,
2785                                         value + HOSTAPD_CLI_DUP_VALUE_MAX_LEN,
2786                                         src_hapd->conf->rsn_pairwise, " ");
2787                 if (res < 0)
2788                         goto error_stringify;
2789         } else if (os_strcmp(param, "wpa_passphrase") == 0 &&
2790                    src_hapd->conf->ssid.wpa_passphrase) {
2791                 os_snprintf(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN, "%s",
2792                             src_hapd->conf->ssid.wpa_passphrase);
2793         } else if (os_strcmp(param, "wpa_psk") == 0 &&
2794                    src_hapd->conf->ssid.wpa_psk_set) {
2795                 wpa_snprintf_hex(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN,
2796                         src_hapd->conf->ssid.wpa_psk->psk, PMK_LEN);
2797         } else {
2798                 wpa_printf(MSG_WARNING, "DUP: %s cannot be duplicated", param);
2799                 goto error_return;
2800         }
2801
2802         res = hostapd_set_iface(dst_hapd->iconf, dst_hapd->conf, param, value);
2803         os_free(value);
2804         return res;
2805
2806 error_stringify:
2807         wpa_printf(MSG_ERROR, "DUP: cannot stringify %s", param);
2808 error_return:
2809         os_free(value);
2810         return -1;
2811 }
2812
2813
2814 static int
2815 hostapd_global_ctrl_iface_dup_network(struct hapd_interfaces *interfaces,
2816                                       char *cmd)
2817 {
2818         char *p_start = cmd, *p_end;
2819         struct hostapd_data *src_hapd, *dst_hapd;
2820
2821         /* cmd: "<src ifname> <dst ifname> <variable name> */
2822
2823         p_end = os_strchr(p_start, ' ');
2824         if (!p_end) {
2825                 wpa_printf(MSG_ERROR, "DUP: no src ifname found in cmd: '%s'",
2826                            cmd);
2827                 return -1;
2828         }
2829
2830         *p_end = '\0';
2831         src_hapd = hostapd_interfaces_get_hapd(interfaces, p_start);
2832         if (!src_hapd) {
2833                 wpa_printf(MSG_ERROR, "DUP: no src ifname found: '%s'",
2834                            p_start);
2835                 return -1;
2836         }
2837
2838         p_start = p_end + 1;
2839         p_end = os_strchr(p_start, ' ');
2840         if (!p_end) {
2841                 wpa_printf(MSG_ERROR, "DUP: no dst ifname found in cmd: '%s'",
2842                            cmd);
2843                 return -1;
2844         }
2845
2846         *p_end = '\0';
2847         dst_hapd = hostapd_interfaces_get_hapd(interfaces, p_start);
2848         if (!dst_hapd) {
2849                 wpa_printf(MSG_ERROR, "DUP: no dst ifname found: '%s'",
2850                            p_start);
2851                 return -1;
2852         }
2853
2854         p_start = p_end + 1;
2855         return hostapd_ctrl_iface_dup_param(src_hapd, dst_hapd, p_start);
2856 }
2857
2858
2859 static int hostapd_global_ctrl_iface_ifname(struct hapd_interfaces *interfaces,
2860                                             const char *ifname,
2861                                             char *buf, char *reply,
2862                                             int reply_size,
2863                                             struct sockaddr_un *from,
2864                                             socklen_t fromlen)
2865 {
2866         struct hostapd_data *hapd;
2867
2868         hapd = hostapd_interfaces_get_hapd(interfaces, ifname);
2869         if (hapd == NULL) {
2870                 int res;
2871
2872                 res = os_snprintf(reply, reply_size, "FAIL-NO-IFNAME-MATCH\n");
2873                 if (os_snprintf_error(reply_size, res))
2874                         return -1;
2875                 return res;
2876         }
2877
2878         return hostapd_ctrl_iface_receive_process(hapd, buf, reply,reply_size,
2879                                                   from, fromlen);
2880 }
2881
2882
2883 static void hostapd_global_ctrl_iface_receive(int sock, void *eloop_ctx,
2884                                               void *sock_ctx)
2885 {
2886         void *interfaces = eloop_ctx;
2887         char buf[256];
2888         int res;
2889         struct sockaddr_un from;
2890         socklen_t fromlen = sizeof(from);
2891         char *reply;
2892         int reply_len;
2893         const int reply_size = 4096;
2894
2895         res = recvfrom(sock, buf, sizeof(buf) - 1, 0,
2896                        (struct sockaddr *) &from, &fromlen);
2897         if (res < 0) {
2898                 wpa_printf(MSG_ERROR, "recvfrom(ctrl_iface): %s",
2899                            strerror(errno));
2900                 return;
2901         }
2902         buf[res] = '\0';
2903         wpa_printf(MSG_DEBUG, "Global ctrl_iface command: %s", buf);
2904
2905         reply = os_malloc(reply_size);
2906         if (reply == NULL) {
2907                 if (sendto(sock, "FAIL\n", 5, 0, (struct sockaddr *) &from,
2908                            fromlen) < 0) {
2909                         wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
2910                                    strerror(errno));
2911                 }
2912                 return;
2913         }
2914
2915         os_memcpy(reply, "OK\n", 3);
2916         reply_len = 3;
2917
2918         if (os_strncmp(buf, "IFNAME=", 7) == 0) {
2919                 char *pos = os_strchr(buf + 7, ' ');
2920
2921                 if (pos) {
2922                         *pos++ = '\0';
2923                         reply_len = hostapd_global_ctrl_iface_ifname(
2924                                 interfaces, buf + 7, pos, reply, reply_size,
2925                                 &from, fromlen);
2926                         goto send_reply;
2927                 }
2928         }
2929
2930         if (os_strcmp(buf, "PING") == 0) {
2931                 os_memcpy(reply, "PONG\n", 5);
2932                 reply_len = 5;
2933         } else if (os_strncmp(buf, "RELOG", 5) == 0) {
2934                 if (wpa_debug_reopen_file() < 0)
2935                         reply_len = -1;
2936         } else if (os_strcmp(buf, "FLUSH") == 0) {
2937                 hostapd_ctrl_iface_flush(interfaces);
2938         } else if (os_strncmp(buf, "ADD ", 4) == 0) {
2939                 if (hostapd_ctrl_iface_add(interfaces, buf + 4) < 0)
2940                         reply_len = -1;
2941         } else if (os_strncmp(buf, "REMOVE ", 7) == 0) {
2942                 if (hostapd_ctrl_iface_remove(interfaces, buf + 7) < 0)
2943                         reply_len = -1;
2944         } else if (os_strcmp(buf, "ATTACH") == 0) {
2945                 if (hostapd_global_ctrl_iface_attach(interfaces, &from,
2946                                                      fromlen))
2947                         reply_len = -1;
2948         } else if (os_strcmp(buf, "DETACH") == 0) {
2949                 if (hostapd_global_ctrl_iface_detach(interfaces, &from,
2950                         fromlen))
2951                         reply_len = -1;
2952 #ifdef CONFIG_MODULE_TESTS
2953         } else if (os_strcmp(buf, "MODULE_TESTS") == 0) {
2954                 int hapd_module_tests(void);
2955                 if (hapd_module_tests() < 0)
2956                         reply_len = -1;
2957 #endif /* CONFIG_MODULE_TESTS */
2958 #ifdef CONFIG_FST
2959         } else if (os_strncmp(buf, "FST-ATTACH ", 11) == 0) {
2960                 if (!hostapd_global_ctrl_iface_fst_attach(interfaces, buf + 11))
2961                         reply_len = os_snprintf(reply, reply_size, "OK\n");
2962                 else
2963                         reply_len = -1;
2964         } else if (os_strncmp(buf, "FST-DETACH ", 11) == 0) {
2965                 if (!hostapd_global_ctrl_iface_fst_detach(interfaces, buf + 11))
2966                         reply_len = os_snprintf(reply, reply_size, "OK\n");
2967                 else
2968                         reply_len = -1;
2969         } else if (os_strncmp(buf, "FST-MANAGER ", 12) == 0) {
2970                 reply_len = fst_ctrl_iface_receive(buf + 12, reply, reply_size);
2971 #endif /* CONFIG_FST */
2972         } else if (os_strncmp(buf, "DUP_NETWORK ", 12) == 0) {
2973                 if (!hostapd_global_ctrl_iface_dup_network(interfaces,
2974                                                            buf + 12))
2975                         reply_len = os_snprintf(reply, reply_size, "OK\n");
2976                 else
2977                         reply_len = -1;
2978         } else {
2979                 wpa_printf(MSG_DEBUG, "Unrecognized global ctrl_iface command "
2980                            "ignored");
2981                 reply_len = -1;
2982         }
2983
2984 send_reply:
2985         if (reply_len < 0) {
2986                 os_memcpy(reply, "FAIL\n", 5);
2987                 reply_len = 5;
2988         }
2989
2990         if (sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from,
2991                    fromlen) < 0) {
2992                 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
2993                            strerror(errno));
2994         }
2995         os_free(reply);
2996 }
2997
2998
2999 static char * hostapd_global_ctrl_iface_path(struct hapd_interfaces *interface)
3000 {
3001         char *buf;
3002         size_t len;
3003
3004         if (interface->global_iface_path == NULL)
3005                 return NULL;
3006
3007         len = os_strlen(interface->global_iface_path) +
3008                 os_strlen(interface->global_iface_name) + 2;
3009         buf = os_malloc(len);
3010         if (buf == NULL)
3011                 return NULL;
3012
3013         os_snprintf(buf, len, "%s/%s", interface->global_iface_path,
3014                     interface->global_iface_name);
3015         buf[len - 1] = '\0';
3016         return buf;
3017 }
3018
3019
3020 int hostapd_global_ctrl_iface_init(struct hapd_interfaces *interface)
3021 {
3022         struct sockaddr_un addr;
3023         int s = -1;
3024         char *fname = NULL;
3025
3026         if (interface->global_iface_path == NULL) {
3027                 wpa_printf(MSG_DEBUG, "ctrl_iface not configured!");
3028                 return 0;
3029         }
3030
3031         if (mkdir(interface->global_iface_path, S_IRWXU | S_IRWXG) < 0) {
3032                 if (errno == EEXIST) {
3033                         wpa_printf(MSG_DEBUG, "Using existing control "
3034                                    "interface directory.");
3035                 } else {
3036                         wpa_printf(MSG_ERROR, "mkdir[ctrl_interface]: %s",
3037                                    strerror(errno));
3038                         goto fail;
3039                 }
3040         } else if (interface->ctrl_iface_group &&
3041                    chown(interface->global_iface_path, -1,
3042                          interface->ctrl_iface_group) < 0) {
3043                 wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s",
3044                            strerror(errno));
3045                 goto fail;
3046         }
3047
3048         if (os_strlen(interface->global_iface_path) + 1 +
3049             os_strlen(interface->global_iface_name) >= sizeof(addr.sun_path))
3050                 goto fail;
3051
3052         s = socket(PF_UNIX, SOCK_DGRAM, 0);
3053         if (s < 0) {
3054                 wpa_printf(MSG_ERROR, "socket(PF_UNIX): %s", strerror(errno));
3055                 goto fail;
3056         }
3057
3058         os_memset(&addr, 0, sizeof(addr));
3059 #ifdef __FreeBSD__
3060         addr.sun_len = sizeof(addr);
3061 #endif /* __FreeBSD__ */
3062         addr.sun_family = AF_UNIX;
3063         fname = hostapd_global_ctrl_iface_path(interface);
3064         if (fname == NULL)
3065                 goto fail;
3066         os_strlcpy(addr.sun_path, fname, sizeof(addr.sun_path));
3067         if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
3068                 wpa_printf(MSG_DEBUG, "ctrl_iface bind(PF_UNIX) failed: %s",
3069                            strerror(errno));
3070                 if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
3071                         wpa_printf(MSG_DEBUG, "ctrl_iface exists, but does not"
3072                                    " allow connections - assuming it was left"
3073                                    "over from forced program termination");
3074                         if (unlink(fname) < 0) {
3075                                 wpa_printf(MSG_ERROR,
3076                                            "Could not unlink existing ctrl_iface socket '%s': %s",
3077                                            fname, strerror(errno));
3078                                 goto fail;
3079                         }
3080                         if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) <
3081                             0) {
3082                                 wpa_printf(MSG_ERROR, "bind(PF_UNIX): %s",
3083                                            strerror(errno));
3084                                 goto fail;
3085                         }
3086                         wpa_printf(MSG_DEBUG, "Successfully replaced leftover "
3087                                    "ctrl_iface socket '%s'", fname);
3088                 } else {
3089                         wpa_printf(MSG_INFO, "ctrl_iface exists and seems to "
3090                                    "be in use - cannot override it");
3091                         wpa_printf(MSG_INFO, "Delete '%s' manually if it is "
3092                                    "not used anymore", fname);
3093                         os_free(fname);
3094                         fname = NULL;
3095                         goto fail;
3096                 }
3097         }
3098
3099         if (interface->ctrl_iface_group &&
3100             chown(fname, -1, interface->ctrl_iface_group) < 0) {
3101                 wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s",
3102                            strerror(errno));
3103                 goto fail;
3104         }
3105
3106         if (chmod(fname, S_IRWXU | S_IRWXG) < 0) {
3107                 wpa_printf(MSG_ERROR, "chmod[ctrl_interface/ifname]: %s",
3108                            strerror(errno));
3109                 goto fail;
3110         }
3111         os_free(fname);
3112
3113         interface->global_ctrl_sock = s;
3114         eloop_register_read_sock(s, hostapd_global_ctrl_iface_receive,
3115                                  interface, NULL);
3116
3117         return 0;
3118
3119 fail:
3120         if (s >= 0)
3121                 close(s);
3122         if (fname) {
3123                 unlink(fname);
3124                 os_free(fname);
3125         }
3126         return -1;
3127 }
3128
3129
3130 void hostapd_global_ctrl_iface_deinit(struct hapd_interfaces *interfaces)
3131 {
3132         char *fname = NULL;
3133         struct wpa_ctrl_dst *dst, *prev;
3134
3135         if (interfaces->global_ctrl_sock > -1) {
3136                 eloop_unregister_read_sock(interfaces->global_ctrl_sock);
3137                 close(interfaces->global_ctrl_sock);
3138                 interfaces->global_ctrl_sock = -1;
3139                 fname = hostapd_global_ctrl_iface_path(interfaces);
3140                 if (fname) {
3141                         unlink(fname);
3142                         os_free(fname);
3143                 }
3144
3145                 if (interfaces->global_iface_path &&
3146                     rmdir(interfaces->global_iface_path) < 0) {
3147                         if (errno == ENOTEMPTY) {
3148                                 wpa_printf(MSG_DEBUG, "Control interface "
3149                                            "directory not empty - leaving it "
3150                                            "behind");
3151                         } else {
3152                                 wpa_printf(MSG_ERROR,
3153                                            "rmdir[ctrl_interface=%s]: %s",
3154                                            interfaces->global_iface_path,
3155                                            strerror(errno));
3156                         }
3157                 }
3158         }
3159
3160         os_free(interfaces->global_iface_path);
3161         interfaces->global_iface_path = NULL;
3162
3163         dst = interfaces->global_ctrl_dst;
3164         interfaces->global_ctrl_dst = NULL;
3165         while (dst) {
3166                 prev = dst;
3167                 dst = dst->next;
3168                 os_free(prev);
3169         }
3170 }
3171
3172
3173 static void hostapd_ctrl_iface_send(struct hostapd_data *hapd, int level,
3174                                     enum wpa_msg_type type,
3175                                     const char *buf, size_t len)
3176 {
3177         struct wpa_ctrl_dst *dst, *next;
3178         struct msghdr msg;
3179         int idx;
3180         struct iovec io[2];
3181         char levelstr[10];
3182         int s;
3183
3184         if (type != WPA_MSG_ONLY_GLOBAL) {
3185                 s = hapd->ctrl_sock;
3186                 dst = hapd->ctrl_dst;
3187         } else {
3188                 s = hapd->iface->interfaces->global_ctrl_sock;
3189                 dst = hapd->iface->interfaces->global_ctrl_dst;
3190         }
3191
3192         if (s < 0 || dst == NULL)
3193                 return;
3194
3195         os_snprintf(levelstr, sizeof(levelstr), "<%d>", level);
3196         io[0].iov_base = levelstr;
3197         io[0].iov_len = os_strlen(levelstr);
3198         io[1].iov_base = (char *) buf;
3199         io[1].iov_len = len;
3200         os_memset(&msg, 0, sizeof(msg));
3201         msg.msg_iov = io;
3202         msg.msg_iovlen = 2;
3203
3204         idx = 0;
3205         while (dst) {
3206                 next = dst->next;
3207                 if (level >= dst->debug_level) {
3208                         wpa_hexdump(MSG_DEBUG, "CTRL_IFACE monitor send",
3209                                     (u8 *) dst->addr.sun_path, dst->addrlen -
3210                                     offsetof(struct sockaddr_un, sun_path));
3211                         msg.msg_name = &dst->addr;
3212                         msg.msg_namelen = dst->addrlen;
3213                         if (sendmsg(s, &msg, 0) < 0) {
3214                                 int _errno = errno;
3215                                 wpa_printf(MSG_INFO, "CTRL_IFACE monitor[%d]: "
3216                                            "%d - %s",
3217                                            idx, errno, strerror(errno));
3218                                 dst->errors++;
3219                                 if (dst->errors > 10 || _errno == ENOENT) {
3220                                         if (type != WPA_MSG_ONLY_GLOBAL)
3221                                                 hostapd_ctrl_iface_detach(
3222                                                         hapd, &dst->addr,
3223                                                         dst->addrlen);
3224                                         else
3225                                                 hostapd_global_ctrl_iface_detach(
3226                                                         hapd->iface->interfaces,
3227                                                         &dst->addr,
3228                                                         dst->addrlen);
3229                                 }
3230                         } else
3231                                 dst->errors = 0;
3232                 }
3233                 idx++;
3234                 dst = next;
3235         }
3236 }
3237
3238 #endif /* CONFIG_NATIVE_WINDOWS */