hostapd/ctrl_iface.c

   1 /*
   2  * hostapd / UNIX domain socket -based control interface
   3  * Copyright (c) 2004-2015, Jouni Malinen <j@w1.fi>
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "utils/includes.h"
  10
  11 #ifndef CONFIG_NATIVE_WINDOWS
  12
  13 #ifdef CONFIG_TESTING_OPTIONS
  14 #include <net/ethernet.h>
  15 #include <netinet/ip.h>
  16 #endif /* CONFIG_TESTING_OPTIONS */
  17
  18 #include <sys/un.h>
  19 #include <sys/stat.h>
  20 #include <stddef.h>
  21
  22 #ifdef CONFIG_CTRL_IFACE_UDP
  23 #include <netdb.h>
  24 #endif /* CONFIG_CTRL_IFACE_UDP */
  25
  26 #include "utils/common.h"
  27 #include "utils/eloop.h"
  28 #include "common/version.h"
  29 #include "common/ieee802_11_defs.h"
  30 #include "common/ctrl_iface_common.h"
  31 #include "crypto/tls.h"
  32 #include "drivers/driver.h"
  33 #include "eapol_auth/eapol_auth_sm.h"
  34 #include "radius/radius_client.h"
  35 #include "radius/radius_server.h"
  36 #include "l2_packet/l2_packet.h"
  37 #include "ap/hostapd.h"
  38 #include "ap/ap_config.h"
  39 #include "ap/ieee802_1x.h"
  40 #include "ap/wpa_auth.h"
  41 #include "ap/ieee802_11.h"
  42 #include "ap/sta_info.h"
  43 #include "ap/wps_hostapd.h"
  44 #include "ap/ctrl_iface_ap.h"
  45 #include "ap/ap_drv_ops.h"
  46 #include "ap/hs20.h"
  47 #include "ap/wnm_ap.h"
  48 #include "ap/wpa_auth.h"
  49 #include "ap/beacon.h"
  50 #include "ap/neighbor_db.h"
  51 #include "ap/rrm.h"
  52 #include "wps/wps_defs.h"
  53 #include "wps/wps.h"
  54 #include "fst/fst_ctrl_iface.h"
  55 #include "config_file.h"
  56 #include "ctrl_iface.h"
  57
  58
  59 #define HOSTAPD_CLI_DUP_VALUE_MAX_LEN 256
  60
  61 #ifdef CONFIG_CTRL_IFACE_UDP
  62 #define COOKIE_LEN 8
  63 static unsigned char cookie[COOKIE_LEN];
  64 static unsigned char gcookie[COOKIE_LEN];
  65 #define HOSTAPD_CTRL_IFACE_PORT         8877
  66 #define HOSTAPD_CTRL_IFACE_PORT_LIMIT   50
  67 #define HOSTAPD_GLOBAL_CTRL_IFACE_PORT          8878
  68 #define HOSTAPD_GLOBAL_CTRL_IFACE_PORT_LIMIT    50
  69 #endif /* CONFIG_CTRL_IFACE_UDP */
  70
  71 static void hostapd_ctrl_iface_send(struct hostapd_data *hapd, int level,
  72                                     enum wpa_msg_type type,
  73                                     const char *buf, size_t len);
  74
  75
  76 static int hostapd_ctrl_iface_attach(struct hostapd_data *hapd,
  77                                      struct sockaddr_storage *from,
  78                                      socklen_t fromlen)
  79 {
  80         return ctrl_iface_attach(&hapd->ctrl_dst, from, fromlen);
  81 }
  82
  83
  84 static int hostapd_ctrl_iface_detach(struct hostapd_data *hapd,
  85                                      struct sockaddr_storage *from,
  86                                      socklen_t fromlen)
  87 {
  88         return ctrl_iface_detach(&hapd->ctrl_dst, from, fromlen);
  89 }
  90
  91
  92 static int hostapd_ctrl_iface_level(struct hostapd_data *hapd,
  93                                     struct sockaddr_storage *from,
  94                                     socklen_t fromlen,
  95                                     char *level)
  96 {
  97         return ctrl_iface_level(&hapd->ctrl_dst, from, fromlen, level);
  98 }
  99
 100
 101 static int hostapd_ctrl_iface_new_sta(struct hostapd_data *hapd,
 102                                       const char *txtaddr)
 103 {
 104         u8 addr[ETH_ALEN];
 105         struct sta_info *sta;
 106
 107         wpa_printf(MSG_DEBUG, "CTRL_IFACE NEW_STA %s", txtaddr);
 108
 109         if (hwaddr_aton(txtaddr, addr))
 110                 return -1;
 111
 112         sta = ap_get_sta(hapd, addr);
 113         if (sta)
 114                 return 0;
 115
 116         wpa_printf(MSG_DEBUG, "Add new STA " MACSTR " based on ctrl_iface "
 117                    "notification", MAC2STR(addr));
 118         sta = ap_sta_add(hapd, addr);
 119         if (sta == NULL)
 120                 return -1;
 121
 122         hostapd_new_assoc_sta(hapd, sta, 0);
 123         return 0;
 124 }
 125
 126
 127 #ifdef CONFIG_IEEE80211W
 128 #ifdef NEED_AP_MLME
 129 static int hostapd_ctrl_iface_sa_query(struct hostapd_data *hapd,
 130                                        const char *txtaddr)
 131 {
 132         u8 addr[ETH_ALEN];
 133         u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
 134
 135         wpa_printf(MSG_DEBUG, "CTRL_IFACE SA_QUERY %s", txtaddr);
 136
 137         if (hwaddr_aton(txtaddr, addr) ||
 138             os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0)
 139                 return -1;
 140
 141         ieee802_11_send_sa_query_req(hapd, addr, trans_id);
 142
 143         return 0;
 144 }
 145 #endif /* NEED_AP_MLME */
 146 #endif /* CONFIG_IEEE80211W */
 147
 148
 149 #ifdef CONFIG_WPS
 150 static int hostapd_ctrl_iface_wps_pin(struct hostapd_data *hapd, char *txt)
 151 {
 152         char *pin = os_strchr(txt, ' ');
 153         char *timeout_txt;
 154         int timeout;
 155         u8 addr_buf[ETH_ALEN], *addr = NULL;
 156         char *pos;
 157
 158         if (pin == NULL)
 159                 return -1;
 160         *pin++ = '\0';
 161
 162         timeout_txt = os_strchr(pin, ' ');
 163         if (timeout_txt) {
 164                 *timeout_txt++ = '\0';
 165                 timeout = atoi(timeout_txt);
 166                 pos = os_strchr(timeout_txt, ' ');
 167                 if (pos) {
 168                         *pos++ = '\0';
 169                         if (hwaddr_aton(pos, addr_buf) == 0)
 170                                 addr = addr_buf;
 171                 }
 172         } else
 173                 timeout = 0;
 174
 175         return hostapd_wps_add_pin(hapd, addr, txt, pin, timeout);
 176 }
 177
 178
 179 static int hostapd_ctrl_iface_wps_check_pin(
 180         struct hostapd_data *hapd, char *cmd, char *buf, size_t buflen)
 181 {
 182         char pin[9];
 183         size_t len;
 184         char *pos;
 185         int ret;
 186
 187         wpa_hexdump_ascii_key(MSG_DEBUG, "WPS_CHECK_PIN",
 188                               (u8 *) cmd, os_strlen(cmd));
 189         for (pos = cmd, len = 0; *pos != '\0'; pos++) {
 190                 if (*pos < '0' || *pos > '9')
 191                         continue;
 192                 pin[len++] = *pos;
 193                 if (len == 9) {
 194                         wpa_printf(MSG_DEBUG, "WPS: Too long PIN");
 195                         return -1;
 196                 }
 197         }
 198         if (len != 4 && len != 8) {
 199                 wpa_printf(MSG_DEBUG, "WPS: Invalid PIN length %d", (int) len);
 200                 return -1;
 201         }
 202         pin[len] = '\0';
 203
 204         if (len == 8) {
 205                 unsigned int pin_val;
 206                 pin_val = atoi(pin);
 207                 if (!wps_pin_valid(pin_val)) {
 208                         wpa_printf(MSG_DEBUG, "WPS: Invalid checksum digit");
 209                         ret = os_snprintf(buf, buflen, "FAIL-CHECKSUM\n");
 210                         if (os_snprintf_error(buflen, ret))
 211                                 return -1;
 212                         return ret;
 213                 }
 214         }
 215
 216         ret = os_snprintf(buf, buflen, "%s", pin);
 217         if (os_snprintf_error(buflen, ret))
 218                 return -1;
 219
 220         return ret;
 221 }
 222
 223
 224 #ifdef CONFIG_WPS_NFC
 225 static int hostapd_ctrl_iface_wps_nfc_tag_read(struct hostapd_data *hapd,
 226                                                char *pos)
 227 {
 228         size_t len;
 229         struct wpabuf *buf;
 230         int ret;
 231
 232         len = os_strlen(pos);
 233         if (len & 0x01)
 234                 return -1;
 235         len /= 2;
 236
 237         buf = wpabuf_alloc(len);
 238         if (buf == NULL)
 239                 return -1;
 240         if (hexstr2bin(pos, wpabuf_put(buf, len), len) < 0) {
 241                 wpabuf_free(buf);
 242                 return -1;
 243         }
 244
 245         ret = hostapd_wps_nfc_tag_read(hapd, buf);
 246         wpabuf_free(buf);
 247
 248         return ret;
 249 }
 250
 251
 252 static int hostapd_ctrl_iface_wps_nfc_config_token(struct hostapd_data *hapd,
 253                                                    char *cmd, char *reply,
 254                                                    size_t max_len)
 255 {
 256         int ndef;
 257         struct wpabuf *buf;
 258         int res;
 259
 260         if (os_strcmp(cmd, "WPS") == 0)
 261                 ndef = 0;
 262         else if (os_strcmp(cmd, "NDEF") == 0)
 263                 ndef = 1;
 264         else
 265                 return -1;
 266
 267         buf = hostapd_wps_nfc_config_token(hapd, ndef);
 268         if (buf == NULL)
 269                 return -1;
 270
 271         res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf),
 272                                          wpabuf_len(buf));
 273         reply[res++] = '\n';
 274         reply[res] = '\0';
 275
 276         wpabuf_free(buf);
 277
 278         return res;
 279 }
 280
 281
 282 static int hostapd_ctrl_iface_wps_nfc_token_gen(struct hostapd_data *hapd,
 283                                                 char *reply, size_t max_len,
 284                                                 int ndef)
 285 {
 286         struct wpabuf *buf;
 287         int res;
 288
 289         buf = hostapd_wps_nfc_token_gen(hapd, ndef);
 290         if (buf == NULL)
 291                 return -1;
 292
 293         res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf),
 294                                          wpabuf_len(buf));
 295         reply[res++] = '\n';
 296         reply[res] = '\0';
 297
 298         wpabuf_free(buf);
 299
 300         return res;
 301 }
 302
 303
 304 static int hostapd_ctrl_iface_wps_nfc_token(struct hostapd_data *hapd,
 305                                             char *cmd, char *reply,
 306                                             size_t max_len)
 307 {
 308         if (os_strcmp(cmd, "WPS") == 0)
 309                 return hostapd_ctrl_iface_wps_nfc_token_gen(hapd, reply,
 310                                                             max_len, 0);
 311
 312         if (os_strcmp(cmd, "NDEF") == 0)
 313                 return hostapd_ctrl_iface_wps_nfc_token_gen(hapd, reply,
 314                                                             max_len, 1);
 315
 316         if (os_strcmp(cmd, "enable") == 0)
 317                 return hostapd_wps_nfc_token_enable(hapd);
 318
 319         if (os_strcmp(cmd, "disable") == 0) {
 320                 hostapd_wps_nfc_token_disable(hapd);
 321                 return 0;
 322         }
 323
 324         return -1;
 325 }
 326
 327
 328 static int hostapd_ctrl_iface_nfc_get_handover_sel(struct hostapd_data *hapd,
 329                                                    char *cmd, char *reply,
 330                                                    size_t max_len)
 331 {
 332         struct wpabuf *buf;
 333         int res;
 334         char *pos;
 335         int ndef;
 336
 337         pos = os_strchr(cmd, ' ');
 338         if (pos == NULL)
 339                 return -1;
 340         *pos++ = '\0';
 341
 342         if (os_strcmp(cmd, "WPS") == 0)
 343                 ndef = 0;
 344         else if (os_strcmp(cmd, "NDEF") == 0)
 345                 ndef = 1;
 346         else
 347                 return -1;
 348
 349         if (os_strcmp(pos, "WPS-CR") == 0)
 350                 buf = hostapd_wps_nfc_hs_cr(hapd, ndef);
 351         else
 352                 buf = NULL;
 353         if (buf == NULL)
 354                 return -1;
 355
 356         res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf),
 357                                          wpabuf_len(buf));
 358         reply[res++] = '\n';
 359         reply[res] = '\0';
 360
 361         wpabuf_free(buf);
 362
 363         return res;
 364 }
 365
 366
 367 static int hostapd_ctrl_iface_nfc_report_handover(struct hostapd_data *hapd,
 368                                                   char *cmd)
 369 {
 370         size_t len;
 371         struct wpabuf *req, *sel;
 372         int ret;
 373         char *pos, *role, *type, *pos2;
 374
 375         role = cmd;
 376         pos = os_strchr(role, ' ');
 377         if (pos == NULL)
 378                 return -1;
 379         *pos++ = '\0';
 380
 381         type = pos;
 382         pos = os_strchr(type, ' ');
 383         if (pos == NULL)
 384                 return -1;
 385         *pos++ = '\0';
 386
 387         pos2 = os_strchr(pos, ' ');
 388         if (pos2 == NULL)
 389                 return -1;
 390         *pos2++ = '\0';
 391
 392         len = os_strlen(pos);
 393         if (len & 0x01)
 394                 return -1;
 395         len /= 2;
 396
 397         req = wpabuf_alloc(len);
 398         if (req == NULL)
 399                 return -1;
 400         if (hexstr2bin(pos, wpabuf_put(req, len), len) < 0) {
 401                 wpabuf_free(req);
 402                 return -1;
 403         }
 404
 405         len = os_strlen(pos2);
 406         if (len & 0x01) {
 407                 wpabuf_free(req);
 408                 return -1;
 409         }
 410         len /= 2;
 411
 412         sel = wpabuf_alloc(len);
 413         if (sel == NULL) {
 414                 wpabuf_free(req);
 415                 return -1;
 416         }
 417         if (hexstr2bin(pos2, wpabuf_put(sel, len), len) < 0) {
 418                 wpabuf_free(req);
 419                 wpabuf_free(sel);
 420                 return -1;
 421         }
 422
 423         if (os_strcmp(role, "RESP") == 0 && os_strcmp(type, "WPS") == 0) {
 424                 ret = hostapd_wps_nfc_report_handover(hapd, req, sel);
 425         } else {
 426                 wpa_printf(MSG_DEBUG, "NFC: Unsupported connection handover "
 427                            "reported: role=%s type=%s", role, type);
 428                 ret = -1;
 429         }
 430         wpabuf_free(req);
 431         wpabuf_free(sel);
 432
 433         return ret;
 434 }
 435
 436 #endif /* CONFIG_WPS_NFC */
 437
 438
 439 static int hostapd_ctrl_iface_wps_ap_pin(struct hostapd_data *hapd, char *txt,
 440                                          char *buf, size_t buflen)
 441 {
 442         int timeout = 300;
 443         char *pos;
 444         const char *pin_txt;
 445
 446         pos = os_strchr(txt, ' ');
 447         if (pos)
 448                 *pos++ = '\0';
 449
 450         if (os_strcmp(txt, "disable") == 0) {
 451                 hostapd_wps_ap_pin_disable(hapd);
 452                 return os_snprintf(buf, buflen, "OK\n");
 453         }
 454
 455         if (os_strcmp(txt, "random") == 0) {
 456                 if (pos)
 457                         timeout = atoi(pos);
 458                 pin_txt = hostapd_wps_ap_pin_random(hapd, timeout);
 459                 if (pin_txt == NULL)
 460                         return -1;
 461                 return os_snprintf(buf, buflen, "%s", pin_txt);
 462         }
 463
 464         if (os_strcmp(txt, "get") == 0) {
 465                 pin_txt = hostapd_wps_ap_pin_get(hapd);
 466                 if (pin_txt == NULL)
 467                         return -1;
 468                 return os_snprintf(buf, buflen, "%s", pin_txt);
 469         }
 470
 471         if (os_strcmp(txt, "set") == 0) {
 472                 char *pin;
 473                 if (pos == NULL)
 474                         return -1;
 475                 pin = pos;
 476                 pos = os_strchr(pos, ' ');
 477                 if (pos) {
 478                         *pos++ = '\0';
 479                         timeout = atoi(pos);
 480                 }
 481                 if (os_strlen(pin) > buflen)
 482                         return -1;
 483                 if (hostapd_wps_ap_pin_set(hapd, pin, timeout) < 0)
 484                         return -1;
 485                 return os_snprintf(buf, buflen, "%s", pin);
 486         }
 487
 488         return -1;
 489 }
 490
 491
 492 static int hostapd_ctrl_iface_wps_config(struct hostapd_data *hapd, char *txt)
 493 {
 494         char *pos;
 495         char *ssid, *auth, *encr = NULL, *key = NULL;
 496
 497         ssid = txt;
 498         pos = os_strchr(txt, ' ');
 499         if (!pos)
 500                 return -1;
 501         *pos++ = '\0';
 502
 503         auth = pos;
 504         pos = os_strchr(pos, ' ');
 505         if (pos) {
 506                 *pos++ = '\0';
 507                 encr = pos;
 508                 pos = os_strchr(pos, ' ');
 509                 if (pos) {
 510                         *pos++ = '\0';
 511                         key = pos;
 512                 }
 513         }
 514
 515         return hostapd_wps_config_ap(hapd, ssid, auth, encr, key);
 516 }
 517
 518
 519 static const char * pbc_status_str(enum pbc_status status)
 520 {
 521         switch (status) {
 522         case WPS_PBC_STATUS_DISABLE:
 523                 return "Disabled";
 524         case WPS_PBC_STATUS_ACTIVE:
 525                 return "Active";
 526         case WPS_PBC_STATUS_TIMEOUT:
 527                 return "Timed-out";
 528         case WPS_PBC_STATUS_OVERLAP:
 529                 return "Overlap";
 530         default:
 531                 return "Unknown";
 532         }
 533 }
 534
 535
 536 static int hostapd_ctrl_iface_wps_get_status(struct hostapd_data *hapd,
 537                                              char *buf, size_t buflen)
 538 {
 539         int ret;
 540         char *pos, *end;
 541
 542         pos = buf;
 543         end = buf + buflen;
 544
 545         ret = os_snprintf(pos, end - pos, "PBC Status: %s\n",
 546                           pbc_status_str(hapd->wps_stats.pbc_status));
 547
 548         if (os_snprintf_error(end - pos, ret))
 549                 return pos - buf;
 550         pos += ret;
 551
 552         ret = os_snprintf(pos, end - pos, "Last WPS result: %s\n",
 553                           (hapd->wps_stats.status == WPS_STATUS_SUCCESS ?
 554                            "Success":
 555                            (hapd->wps_stats.status == WPS_STATUS_FAILURE ?
 556                             "Failed" : "None")));
 557
 558         if (os_snprintf_error(end - pos, ret))
 559                 return pos - buf;
 560         pos += ret;
 561
 562         /* If status == Failure - Add possible Reasons */
 563         if(hapd->wps_stats.status == WPS_STATUS_FAILURE &&
 564            hapd->wps_stats.failure_reason > 0) {
 565                 ret = os_snprintf(pos, end - pos,
 566                                   "Failure Reason: %s\n",
 567                                   wps_ei_str(hapd->wps_stats.failure_reason));
 568
 569                 if (os_snprintf_error(end - pos, ret))
 570                         return pos - buf;
 571                 pos += ret;
 572         }
 573
 574         if (hapd->wps_stats.status) {
 575                 ret = os_snprintf(pos, end - pos, "Peer Address: " MACSTR "\n",
 576                                   MAC2STR(hapd->wps_stats.peer_addr));
 577
 578                 if (os_snprintf_error(end - pos, ret))
 579                         return pos - buf;
 580                 pos += ret;
 581         }
 582
 583         return pos - buf;
 584 }
 585
 586 #endif /* CONFIG_WPS */
 587
 588 #ifdef CONFIG_HS20
 589
 590 static int hostapd_ctrl_iface_hs20_wnm_notif(struct hostapd_data *hapd,
 591                                              const char *cmd)
 592 {
 593         u8 addr[ETH_ALEN];
 594         const char *url;
 595
 596         if (hwaddr_aton(cmd, addr))
 597                 return -1;
 598         url = cmd + 17;
 599         if (*url == '\0') {
 600                 url = NULL;
 601         } else {
 602                 if (*url != ' ')
 603                         return -1;
 604                 url++;
 605                 if (*url == '\0')
 606                         url = NULL;
 607         }
 608
 609         return hs20_send_wnm_notification(hapd, addr, 1, url);
 610 }
 611
 612
 613 static int hostapd_ctrl_iface_hs20_deauth_req(struct hostapd_data *hapd,
 614                                               const char *cmd)
 615 {
 616         u8 addr[ETH_ALEN];
 617         int code, reauth_delay, ret;
 618         const char *pos;
 619         size_t url_len;
 620         struct wpabuf *req;
 621
 622         /* <STA MAC Addr> <Code(0/1)> <Re-auth-Delay(sec)> [URL] */
 623         if (hwaddr_aton(cmd, addr))
 624                 return -1;
 625
 626         pos = os_strchr(cmd, ' ');
 627         if (pos == NULL)
 628                 return -1;
 629         pos++;
 630         code = atoi(pos);
 631
 632         pos = os_strchr(pos, ' ');
 633         if (pos == NULL)
 634                 return -1;
 635         pos++;
 636         reauth_delay = atoi(pos);
 637
 638         url_len = 0;
 639         pos = os_strchr(pos, ' ');
 640         if (pos) {
 641                 pos++;
 642                 url_len = os_strlen(pos);
 643         }
 644
 645         req = wpabuf_alloc(4 + url_len);
 646         if (req == NULL)
 647                 return -1;
 648         wpabuf_put_u8(req, code);
 649         wpabuf_put_le16(req, reauth_delay);
 650         wpabuf_put_u8(req, url_len);
 651         if (pos)
 652                 wpabuf_put_data(req, pos, url_len);
 653
 654         wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification to " MACSTR
 655                    " to indicate imminent deauthentication (code=%d "
 656                    "reauth_delay=%d)", MAC2STR(addr), code, reauth_delay);
 657         ret = hs20_send_wnm_notification_deauth_req(hapd, addr, req);
 658         wpabuf_free(req);
 659         return ret;
 660 }
 661
 662 #endif /* CONFIG_HS20 */
 663
 664
 665 #ifdef CONFIG_INTERWORKING
 666
 667 static int hostapd_ctrl_iface_set_qos_map_set(struct hostapd_data *hapd,
 668                                               const char *cmd)
 669 {
 670         u8 qos_map_set[16 + 2 * 21], count = 0;
 671         const char *pos = cmd;
 672         int val, ret;
 673
 674         for (;;) {
 675                 if (count == sizeof(qos_map_set)) {
 676                         wpa_printf(MSG_ERROR, "Too many qos_map_set parameters");
 677                         return -1;
 678                 }
 679
 680                 val = atoi(pos);
 681                 if (val < 0 || val > 255) {
 682                         wpa_printf(MSG_INFO, "Invalid QoS Map Set");
 683                         return -1;
 684                 }
 685
 686                 qos_map_set[count++] = val;
 687                 pos = os_strchr(pos, ',');
 688                 if (!pos)
 689                         break;
 690                 pos++;
 691         }
 692
 693         if (count < 16 || count & 1) {
 694                 wpa_printf(MSG_INFO, "Invalid QoS Map Set");
 695                 return -1;
 696         }
 697
 698         ret = hostapd_drv_set_qos_map(hapd, qos_map_set, count);
 699         if (ret) {
 700                 wpa_printf(MSG_INFO, "Failed to set QoS Map Set");
 701                 return -1;
 702         }
 703
 704         os_memcpy(hapd->conf->qos_map_set, qos_map_set, count);
 705         hapd->conf->qos_map_set_len = count;
 706
 707         return 0;
 708 }
 709
 710
 711 static int hostapd_ctrl_iface_send_qos_map_conf(struct hostapd_data *hapd,
 712                                                 const char *cmd)
 713 {
 714         u8 addr[ETH_ALEN];
 715         struct sta_info *sta;
 716         struct wpabuf *buf;
 717         u8 *qos_map_set = hapd->conf->qos_map_set;
 718         u8 qos_map_set_len = hapd->conf->qos_map_set_len;
 719         int ret;
 720
 721         if (!qos_map_set_len) {
 722                 wpa_printf(MSG_INFO, "QoS Map Set is not set");
 723                 return -1;
 724         }
 725
 726         if (hwaddr_aton(cmd, addr))
 727                 return -1;
 728
 729         sta = ap_get_sta(hapd, addr);
 730         if (sta == NULL) {
 731                 wpa_printf(MSG_DEBUG, "Station " MACSTR " not found "
 732                            "for QoS Map Configuration message",
 733                            MAC2STR(addr));
 734                 return -1;
 735         }
 736
 737         if (!sta->qos_map_enabled) {
 738                 wpa_printf(MSG_DEBUG, "Station " MACSTR " did not indicate "
 739                            "support for QoS Map", MAC2STR(addr));
 740                 return -1;
 741         }
 742
 743         buf = wpabuf_alloc(2 + 2 + qos_map_set_len);
 744         if (buf == NULL)
 745                 return -1;
 746
 747         wpabuf_put_u8(buf, WLAN_ACTION_QOS);
 748         wpabuf_put_u8(buf, QOS_QOS_MAP_CONFIG);
 749
 750         /* QoS Map Set Element */
 751         wpabuf_put_u8(buf, WLAN_EID_QOS_MAP_SET);
 752         wpabuf_put_u8(buf, qos_map_set_len);
 753         wpabuf_put_data(buf, qos_map_set, qos_map_set_len);
 754
 755         ret = hostapd_drv_send_action(hapd, hapd->iface->freq, 0, addr,
 756                                       wpabuf_head(buf), wpabuf_len(buf));
 757         wpabuf_free(buf);
 758
 759         return ret;
 760 }
 761
 762 #endif /* CONFIG_INTERWORKING */
 763
 764
 765 #ifdef CONFIG_WNM
 766
 767 static int hostapd_ctrl_iface_disassoc_imminent(struct hostapd_data *hapd,
 768                                                 const char *cmd)
 769 {
 770         u8 addr[ETH_ALEN];
 771         int disassoc_timer;
 772         struct sta_info *sta;
 773
 774         if (hwaddr_aton(cmd, addr))
 775                 return -1;
 776         if (cmd[17] != ' ')
 777                 return -1;
 778         disassoc_timer = atoi(cmd + 17);
 779
 780         sta = ap_get_sta(hapd, addr);
 781         if (sta == NULL) {
 782                 wpa_printf(MSG_DEBUG, "Station " MACSTR
 783                            " not found for disassociation imminent message",
 784                            MAC2STR(addr));
 785                 return -1;
 786         }
 787
 788         return wnm_send_disassoc_imminent(hapd, sta, disassoc_timer);
 789 }
 790
 791
 792 static int hostapd_ctrl_iface_ess_disassoc(struct hostapd_data *hapd,
 793                                            const char *cmd)
 794 {
 795         u8 addr[ETH_ALEN];
 796         const char *url, *timerstr;
 797         int disassoc_timer;
 798         struct sta_info *sta;
 799
 800         if (hwaddr_aton(cmd, addr))
 801                 return -1;
 802
 803         sta = ap_get_sta(hapd, addr);
 804         if (sta == NULL) {
 805                 wpa_printf(MSG_DEBUG, "Station " MACSTR
 806                            " not found for ESS disassociation imminent message",
 807                            MAC2STR(addr));
 808                 return -1;
 809         }
 810
 811         timerstr = cmd + 17;
 812         if (*timerstr != ' ')
 813                 return -1;
 814         timerstr++;
 815         disassoc_timer = atoi(timerstr);
 816         if (disassoc_timer < 0 || disassoc_timer > 65535)
 817                 return -1;
 818
 819         url = os_strchr(timerstr, ' ');
 820         if (url == NULL)
 821                 return -1;
 822         url++;
 823
 824         return wnm_send_ess_disassoc_imminent(hapd, sta, url, disassoc_timer);
 825 }
 826
 827
 828 static int hostapd_ctrl_iface_bss_tm_req(struct hostapd_data *hapd,
 829                                          const char *cmd)
 830 {
 831         u8 addr[ETH_ALEN];
 832         const char *pos, *end;
 833         int disassoc_timer = 0;
 834         struct sta_info *sta;
 835         u8 req_mode = 0, valid_int = 0x01;
 836         u8 bss_term_dur[12];
 837         char *url = NULL;
 838         int ret;
 839         u8 nei_rep[1000];
 840         u8 *nei_pos = nei_rep;
 841         u8 mbo[10];
 842         size_t mbo_len = 0;
 843
 844         if (hwaddr_aton(cmd, addr)) {
 845                 wpa_printf(MSG_DEBUG, "Invalid STA MAC address");
 846                 return -1;
 847         }
 848
 849         sta = ap_get_sta(hapd, addr);
 850         if (sta == NULL) {
 851                 wpa_printf(MSG_DEBUG, "Station " MACSTR
 852                            " not found for BSS TM Request message",
 853                            MAC2STR(addr));
 854                 return -1;
 855         }
 856
 857         pos = os_strstr(cmd, " disassoc_timer=");
 858         if (pos) {
 859                 pos += 16;
 860                 disassoc_timer = atoi(pos);
 861                 if (disassoc_timer < 0 || disassoc_timer > 65535) {
 862                         wpa_printf(MSG_DEBUG, "Invalid disassoc_timer");
 863                         return -1;
 864                 }
 865         }
 866
 867         pos = os_strstr(cmd, " valid_int=");
 868         if (pos) {
 869                 pos += 11;
 870                 valid_int = atoi(pos);
 871         }
 872
 873         pos = os_strstr(cmd, " bss_term=");
 874         if (pos) {
 875                 pos += 10;
 876                 req_mode |= WNM_BSS_TM_REQ_BSS_TERMINATION_INCLUDED;
 877                 /* TODO: TSF configurable/learnable */
 878                 bss_term_dur[0] = 4; /* Subelement ID */
 879                 bss_term_dur[1] = 10; /* Length */
 880                 os_memset(bss_term_dur, 2, 8);
 881                 end = os_strchr(pos, ',');
 882                 if (end == NULL) {
 883                         wpa_printf(MSG_DEBUG, "Invalid bss_term data");
 884                         return -1;
 885                 }
 886                 end++;
 887                 WPA_PUT_LE16(&bss_term_dur[10], atoi(end));
 888         }
 889
 890
 891         /*
 892          * BSS Transition Candidate List Entries - Neighbor Report elements
 893          * neighbor=<BSSID>,<BSSID Information>,<Operating Class>,
 894          * <Channel Number>,<PHY Type>[,<hexdump of Optional Subelements>]
 895          */
 896         pos = cmd;
 897         while (pos) {
 898                 u8 *nei_start;
 899                 long int val;
 900                 char *endptr, *tmp;
 901
 902                 pos = os_strstr(pos, " neighbor=");
 903                 if (!pos)
 904                         break;
 905                 if (nei_pos + 15 > nei_rep + sizeof(nei_rep)) {
 906                         wpa_printf(MSG_DEBUG,
 907                                    "Not enough room for additional neighbor");
 908                         return -1;
 909                 }
 910                 pos += 10;
 911
 912                 nei_start = nei_pos;
 913                 *nei_pos++ = WLAN_EID_NEIGHBOR_REPORT;
 914                 nei_pos++; /* length to be filled in */
 915
 916                 if (hwaddr_aton(pos, nei_pos)) {
 917                         wpa_printf(MSG_DEBUG, "Invalid BSSID");
 918                         return -1;
 919                 }
 920                 nei_pos += ETH_ALEN;
 921                 pos += 17;
 922                 if (*pos != ',') {
 923                         wpa_printf(MSG_DEBUG, "Missing BSSID Information");
 924                         return -1;
 925                 }
 926                 pos++;
 927
 928                 val = strtol(pos, &endptr, 0);
 929                 WPA_PUT_LE32(nei_pos, val);
 930                 nei_pos += 4;
 931                 if (*endptr != ',') {
 932                         wpa_printf(MSG_DEBUG, "Missing Operating Class");
 933                         return -1;
 934                 }
 935                 pos = endptr + 1;
 936
 937                 *nei_pos++ = atoi(pos); /* Operating Class */
 938                 pos = os_strchr(pos, ',');
 939                 if (pos == NULL) {
 940                         wpa_printf(MSG_DEBUG, "Missing Channel Number");
 941                         return -1;
 942                 }
 943                 pos++;
 944
 945                 *nei_pos++ = atoi(pos); /* Channel Number */
 946                 pos = os_strchr(pos, ',');
 947                 if (pos == NULL) {
 948                         wpa_printf(MSG_DEBUG, "Missing PHY Type");
 949                         return -1;
 950                 }
 951                 pos++;
 952
 953                 *nei_pos++ = atoi(pos); /* PHY Type */
 954                 end = os_strchr(pos, ' ');
 955                 tmp = os_strchr(pos, ',');
 956                 if (tmp && (!end || tmp < end)) {
 957                         /* Optional Subelements (hexdump) */
 958                         size_t len;
 959
 960                         pos = tmp + 1;
 961                         end = os_strchr(pos, ' ');
 962                         if (end)
 963                                 len = end - pos;
 964                         else
 965                                 len = os_strlen(pos);
 966                         if (nei_pos + len / 2 > nei_rep + sizeof(nei_rep)) {
 967                                 wpa_printf(MSG_DEBUG,
 968                                            "Not enough room for neighbor subelements");
 969                                 return -1;
 970                         }
 971                         if (len & 0x01 ||
 972                             hexstr2bin(pos, nei_pos, len / 2) < 0) {
 973                                 wpa_printf(MSG_DEBUG,
 974                                            "Invalid neighbor subelement info");
 975                                 return -1;
 976                         }
 977                         nei_pos += len / 2;
 978                         pos = end;
 979                 }
 980
 981                 nei_start[1] = nei_pos - nei_start - 2;
 982         }
 983
 984         pos = os_strstr(cmd, " url=");
 985         if (pos) {
 986                 size_t len;
 987                 pos += 5;
 988                 end = os_strchr(pos, ' ');
 989                 if (end)
 990                         len = end - pos;
 991                 else
 992                         len = os_strlen(pos);
 993                 url = os_malloc(len + 1);
 994                 if (url == NULL)
 995                         return -1;
 996                 os_memcpy(url, pos, len);
 997                 url[len] = '\0';
 998                 req_mode |= WNM_BSS_TM_REQ_ESS_DISASSOC_IMMINENT;
 999         }
1000
1001         if (os_strstr(cmd, " pref=1"))
1002                 req_mode |= WNM_BSS_TM_REQ_PREF_CAND_LIST_INCLUDED;
1003         if (os_strstr(cmd, " abridged=1"))
1004                 req_mode |= WNM_BSS_TM_REQ_ABRIDGED;
1005         if (os_strstr(cmd, " disassoc_imminent=1"))
1006                 req_mode |= WNM_BSS_TM_REQ_DISASSOC_IMMINENT;
1007
1008 #ifdef CONFIG_MBO
1009         pos = os_strstr(cmd, "mbo=");
1010         if (pos) {
1011                 unsigned int mbo_reason, cell_pref, reassoc_delay;
1012                 u8 *mbo_pos = mbo;
1013
1014                 ret = sscanf(pos, "mbo=%u:%u:%u", &mbo_reason,
1015                              &reassoc_delay, &cell_pref);
1016                 if (ret != 3) {
1017                         wpa_printf(MSG_DEBUG,
1018                                    "MBO requires three arguments: mbo=<reason>:<reassoc_delay>:<cell_pref>");
1019                         return -1;
1020                 }
1021
1022                 if (mbo_reason > MBO_TRANSITION_REASON_PREMIUM_AP) {
1023                         wpa_printf(MSG_DEBUG,
1024                                    "Invalid MBO transition reason code %u",
1025                                    mbo_reason);
1026                         return -1;
1027                 }
1028
1029                 /* Valid values for Cellular preference are: 0, 1, 255 */
1030                 if (cell_pref != 0 && cell_pref != 1 && cell_pref != 255) {
1031                         wpa_printf(MSG_DEBUG,
1032                                    "Invalid MBO cellular capability %u",
1033                                    cell_pref);
1034                         return -1;
1035                 }
1036
1037                 if (reassoc_delay > 65535 ||
1038                     (reassoc_delay &&
1039                      !(req_mode & WNM_BSS_TM_REQ_DISASSOC_IMMINENT))) {
1040                         wpa_printf(MSG_DEBUG,
1041                                    "MBO: Assoc retry delay is only valid in disassoc imminent mode");
1042                         return -1;
1043                 }
1044
1045                 *mbo_pos++ = MBO_ATTR_ID_TRANSITION_REASON;
1046                 *mbo_pos++ = 1;
1047                 *mbo_pos++ = mbo_reason;
1048                 *mbo_pos++ = MBO_ATTR_ID_CELL_DATA_PREF;
1049                 *mbo_pos++ = 1;
1050                 *mbo_pos++ = cell_pref;
1051
1052                 if (reassoc_delay) {
1053                         *mbo_pos++ = MBO_ATTR_ID_ASSOC_RETRY_DELAY;
1054                         *mbo_pos++ = 2;
1055                         WPA_PUT_LE16(mbo_pos, reassoc_delay);
1056                         mbo_pos += 2;
1057                 }
1058
1059                 mbo_len = mbo_pos - mbo;
1060         }
1061 #endif /* CONFIG_MBO */
1062
1063         ret = wnm_send_bss_tm_req(hapd, sta, req_mode, disassoc_timer,
1064                                   valid_int, bss_term_dur, url,
1065                                   nei_pos > nei_rep ? nei_rep : NULL,
1066                                   nei_pos - nei_rep, mbo_len ? mbo : NULL,
1067                                   mbo_len);
1068         os_free(url);
1069         return ret;
1070 }
1071
1072 #endif /* CONFIG_WNM */
1073
1074
1075 static int hostapd_ctrl_iface_get_key_mgmt(struct hostapd_data *hapd,
1076                                            char *buf, size_t buflen)
1077 {
1078         int ret = 0;
1079         char *pos, *end;
1080
1081         pos = buf;
1082         end = buf + buflen;
1083
1084         WPA_ASSERT(hapd->conf->wpa_key_mgmt);
1085
1086         if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK) {
1087                 ret = os_snprintf(pos, end - pos, "WPA-PSK ");
1088                 if (os_snprintf_error(end - pos, ret))
1089                         return pos - buf;
1090                 pos += ret;
1091         }
1092         if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
1093                 ret = os_snprintf(pos, end - pos, "WPA-EAP ");
1094                 if (os_snprintf_error(end - pos, ret))
1095                         return pos - buf;
1096                 pos += ret;
1097         }
1098 #ifdef CONFIG_IEEE80211R
1099         if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_PSK) {
1100                 ret = os_snprintf(pos, end - pos, "FT-PSK ");
1101                 if (os_snprintf_error(end - pos, ret))
1102                         return pos - buf;
1103                 pos += ret;
1104         }
1105         if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) {
1106                 ret = os_snprintf(pos, end - pos, "FT-EAP ");
1107                 if (os_snprintf_error(end - pos, ret))
1108                         return pos - buf;
1109                 pos += ret;
1110         }
1111 #ifdef CONFIG_SAE
1112         if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_SAE) {
1113                 ret = os_snprintf(pos, end - pos, "FT-SAE ");
1114                 if (os_snprintf_error(end - pos, ret))
1115                         return pos - buf;
1116                 pos += ret;
1117         }
1118 #endif /* CONFIG_SAE */
1119 #endif /* CONFIG_IEEE80211R */
1120 #ifdef CONFIG_IEEE80211W
1121         if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
1122                 ret = os_snprintf(pos, end - pos, "WPA-PSK-SHA256 ");
1123                 if (os_snprintf_error(end - pos, ret))
1124                         return pos - buf;
1125                 pos += ret;
1126         }
1127         if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) {
1128                 ret = os_snprintf(pos, end - pos, "WPA-EAP-SHA256 ");
1129                 if (os_snprintf_error(end - pos, ret))
1130                         return pos - buf;
1131                 pos += ret;
1132         }
1133 #endif /* CONFIG_IEEE80211W */
1134 #ifdef CONFIG_SAE
1135         if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_SAE) {
1136                 ret = os_snprintf(pos, end - pos, "SAE ");
1137                 if (os_snprintf_error(end - pos, ret))
1138                         return pos - buf;
1139                 pos += ret;
1140         }
1141 #endif /* CONFIG_SAE */
1142         if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
1143                 ret = os_snprintf(pos, end - pos, "WPA-EAP-SUITE-B ");
1144                 if (os_snprintf_error(end - pos, ret))
1145                         return pos - buf;
1146                 pos += ret;
1147         }
1148         if (hapd->conf->wpa_key_mgmt &
1149             WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) {
1150                 ret = os_snprintf(pos, end - pos,
1151                                   "WPA-EAP-SUITE-B-192 ");
1152                 if (os_snprintf_error(end - pos, ret))
1153                         return pos - buf;
1154                 pos += ret;
1155         }
1156
1157         if (pos > buf && *(pos - 1) == ' ') {
1158                 *(pos - 1) = '\0';
1159                 pos--;
1160         }
1161
1162         return pos - buf;
1163 }
1164
1165
1166 static int hostapd_ctrl_iface_get_config(struct hostapd_data *hapd,
1167                                          char *buf, size_t buflen)
1168 {
1169         int ret;
1170         char *pos, *end;
1171
1172         pos = buf;
1173         end = buf + buflen;
1174
1175         ret = os_snprintf(pos, end - pos, "bssid=" MACSTR "\n"
1176                           "ssid=%s\n",
1177                           MAC2STR(hapd->own_addr),
1178                           wpa_ssid_txt(hapd->conf->ssid.ssid,
1179                                        hapd->conf->ssid.ssid_len));
1180         if (os_snprintf_error(end - pos, ret))
1181                 return pos - buf;
1182         pos += ret;
1183
1184 #ifdef CONFIG_WPS
1185         ret = os_snprintf(pos, end - pos, "wps_state=%s\n",
1186                           hapd->conf->wps_state == 0 ? "disabled" :
1187                           (hapd->conf->wps_state == 1 ? "not configured" :
1188                            "configured"));
1189         if (os_snprintf_error(end - pos, ret))
1190                 return pos - buf;
1191         pos += ret;
1192
1193         if (hapd->conf->wps_state && hapd->conf->wpa &&
1194             hapd->conf->ssid.wpa_passphrase) {
1195                 ret = os_snprintf(pos, end - pos, "passphrase=%s\n",
1196                                   hapd->conf->ssid.wpa_passphrase);
1197                 if (os_snprintf_error(end - pos, ret))
1198                         return pos - buf;
1199                 pos += ret;
1200         }
1201
1202         if (hapd->conf->wps_state && hapd->conf->wpa &&
1203             hapd->conf->ssid.wpa_psk &&
1204             hapd->conf->ssid.wpa_psk->group) {
1205                 char hex[PMK_LEN * 2 + 1];
1206                 wpa_snprintf_hex(hex, sizeof(hex),
1207                                  hapd->conf->ssid.wpa_psk->psk, PMK_LEN);
1208                 ret = os_snprintf(pos, end - pos, "psk=%s\n", hex);
1209                 if (os_snprintf_error(end - pos, ret))
1210                         return pos - buf;
1211                 pos += ret;
1212         }
1213 #endif /* CONFIG_WPS */
1214
1215         if (hapd->conf->wpa) {
1216                 ret = os_snprintf(pos, end - pos, "wpa=%d\n", hapd->conf->wpa);
1217                 if (os_snprintf_error(end - pos, ret))
1218                         return pos - buf;
1219                 pos += ret;
1220         }
1221
1222         if (hapd->conf->wpa && hapd->conf->wpa_key_mgmt) {
1223                 ret = os_snprintf(pos, end - pos, "key_mgmt=");
1224                 if (os_snprintf_error(end - pos, ret))
1225                         return pos - buf;
1226                 pos += ret;
1227
1228                 pos += hostapd_ctrl_iface_get_key_mgmt(hapd, pos, end - pos);
1229
1230                 ret = os_snprintf(pos, end - pos, "\n");
1231                 if (os_snprintf_error(end - pos, ret))
1232                         return pos - buf;
1233                 pos += ret;
1234         }
1235
1236         if (hapd->conf->wpa) {
1237                 ret = os_snprintf(pos, end - pos, "group_cipher=%s\n",
1238                                   wpa_cipher_txt(hapd->conf->wpa_group));
1239                 if (os_snprintf_error(end - pos, ret))
1240                         return pos - buf;
1241                 pos += ret;
1242         }
1243
1244         if ((hapd->conf->wpa & WPA_PROTO_RSN) && hapd->conf->rsn_pairwise) {
1245                 ret = os_snprintf(pos, end - pos, "rsn_pairwise_cipher=");
1246                 if (os_snprintf_error(end - pos, ret))
1247                         return pos - buf;
1248                 pos += ret;
1249
1250                 ret = wpa_write_ciphers(pos, end, hapd->conf->rsn_pairwise,
1251                                         " ");
1252                 if (ret < 0)
1253                         return pos - buf;
1254                 pos += ret;
1255
1256                 ret = os_snprintf(pos, end - pos, "\n");
1257                 if (os_snprintf_error(end - pos, ret))
1258                         return pos - buf;
1259                 pos += ret;
1260         }
1261
1262         if ((hapd->conf->wpa & WPA_PROTO_WPA) && hapd->conf->wpa_pairwise) {
1263                 ret = os_snprintf(pos, end - pos, "wpa_pairwise_cipher=");
1264                 if (os_snprintf_error(end - pos, ret))
1265                         return pos - buf;
1266                 pos += ret;
1267
1268                 ret = wpa_write_ciphers(pos, end, hapd->conf->wpa_pairwise,
1269                                         " ");
1270                 if (ret < 0)
1271                         return pos - buf;
1272                 pos += ret;
1273
1274                 ret = os_snprintf(pos, end - pos, "\n");
1275                 if (os_snprintf_error(end - pos, ret))
1276                         return pos - buf;
1277                 pos += ret;
1278         }
1279
1280         return pos - buf;
1281 }
1282
1283
1284 static int hostapd_ctrl_iface_set(struct hostapd_data *hapd, char *cmd)
1285 {
1286         char *value;
1287         int ret = 0;
1288
1289         value = os_strchr(cmd, ' ');
1290         if (value == NULL)
1291                 return -1;
1292         *value++ = '\0';
1293
1294         wpa_printf(MSG_DEBUG, "CTRL_IFACE SET '%s'='%s'", cmd, value);
1295         if (0) {
1296 #ifdef CONFIG_WPS_TESTING
1297         } else if (os_strcasecmp(cmd, "wps_version_number") == 0) {
1298                 long int val;
1299                 val = strtol(value, NULL, 0);
1300                 if (val < 0 || val > 0xff) {
1301                         ret = -1;
1302                         wpa_printf(MSG_DEBUG, "WPS: Invalid "
1303                                    "wps_version_number %ld", val);
1304                 } else {
1305                         wps_version_number = val;
1306                         wpa_printf(MSG_DEBUG, "WPS: Testing - force WPS "
1307                                    "version %u.%u",
1308                                    (wps_version_number & 0xf0) >> 4,
1309                                    wps_version_number & 0x0f);
1310                         hostapd_wps_update_ie(hapd);
1311                 }
1312         } else if (os_strcasecmp(cmd, "wps_testing_dummy_cred") == 0) {
1313                 wps_testing_dummy_cred = atoi(value);
1314                 wpa_printf(MSG_DEBUG, "WPS: Testing - dummy_cred=%d",
1315                            wps_testing_dummy_cred);
1316         } else if (os_strcasecmp(cmd, "wps_corrupt_pkhash") == 0) {
1317                 wps_corrupt_pkhash = atoi(value);
1318                 wpa_printf(MSG_DEBUG, "WPS: Testing - wps_corrupt_pkhash=%d",
1319                            wps_corrupt_pkhash);
1320 #endif /* CONFIG_WPS_TESTING */
1321 #ifdef CONFIG_INTERWORKING
1322         } else if (os_strcasecmp(cmd, "gas_frag_limit") == 0) {
1323                 int val = atoi(value);
1324                 if (val <= 0)
1325                         ret = -1;
1326                 else
1327                         hapd->gas_frag_limit = val;
1328 #endif /* CONFIG_INTERWORKING */
1329 #ifdef CONFIG_TESTING_OPTIONS
1330         } else if (os_strcasecmp(cmd, "ext_mgmt_frame_handling") == 0) {
1331                 hapd->ext_mgmt_frame_handling = atoi(value);
1332         } else if (os_strcasecmp(cmd, "ext_eapol_frame_io") == 0) {
1333                 hapd->ext_eapol_frame_io = atoi(value);
1334 #endif /* CONFIG_TESTING_OPTIONS */
1335 #ifdef CONFIG_MBO
1336         } else if (os_strcasecmp(cmd, "mbo_assoc_disallow") == 0) {
1337                 int val;
1338
1339                 if (!hapd->conf->mbo_enabled)
1340                         return -1;
1341
1342                 val = atoi(value);
1343                 if (val < 0 || val > 1)
1344                         return -1;
1345
1346                 hapd->mbo_assoc_disallow = val;
1347                 ieee802_11_update_beacons(hapd->iface);
1348
1349                 /*
1350                  * TODO: Need to configure drivers that do AP MLME offload with
1351                  * disallowing station logic.
1352                  */
1353 #endif /* CONFIG_MBO */
1354         } else {
1355                 struct sta_info *sta;
1356                 struct vlan_description vlan_id;
1357
1358                 ret = hostapd_set_iface(hapd->iconf, hapd->conf, cmd, value);
1359                 if (ret)
1360                         return ret;
1361
1362                 if (os_strcasecmp(cmd, "deny_mac_file") == 0) {
1363                         for (sta = hapd->sta_list; sta; sta = sta->next) {
1364                                 if (hostapd_maclist_found(
1365                                             hapd->conf->deny_mac,
1366                                             hapd->conf->num_deny_mac, sta->addr,
1367                                             &vlan_id) &&
1368                                     (!vlan_id.notempty ||
1369                                      !vlan_compare(&vlan_id, sta->vlan_desc)))
1370                                         ap_sta_disconnect(
1371                                                 hapd, sta, sta->addr,
1372                                                 WLAN_REASON_UNSPECIFIED);
1373                         }
1374                 } else if (hapd->conf->macaddr_acl == DENY_UNLESS_ACCEPTED &&
1375                            os_strcasecmp(cmd, "accept_mac_file") == 0) {
1376                         for (sta = hapd->sta_list; sta; sta = sta->next) {
1377                                 if (!hostapd_maclist_found(
1378                                             hapd->conf->accept_mac,
1379                                             hapd->conf->num_accept_mac,
1380                                             sta->addr, &vlan_id) ||
1381                                     (vlan_id.notempty &&
1382                                      vlan_compare(&vlan_id, sta->vlan_desc)))
1383                                         ap_sta_disconnect(
1384                                                 hapd, sta, sta->addr,
1385                                                 WLAN_REASON_UNSPECIFIED);
1386                         }
1387                 }
1388         }
1389
1390         return ret;
1391 }
1392
1393
1394 static int hostapd_ctrl_iface_get(struct hostapd_data *hapd, char *cmd,
1395                                   char *buf, size_t buflen)
1396 {
1397         int res;
1398
1399         wpa_printf(MSG_DEBUG, "CTRL_IFACE GET '%s'", cmd);
1400
1401         if (os_strcmp(cmd, "version") == 0) {
1402                 res = os_snprintf(buf, buflen, "%s", VERSION_STR);
1403                 if (os_snprintf_error(buflen, res))
1404                         return -1;
1405                 return res;
1406         } else if (os_strcmp(cmd, "tls_library") == 0) {
1407                 res = tls_get_library_version(buf, buflen);
1408                 if (os_snprintf_error(buflen, res))
1409                         return -1;
1410                 return res;
1411         }
1412
1413         return -1;
1414 }
1415
1416
1417 static int hostapd_ctrl_iface_enable(struct hostapd_iface *iface)
1418 {
1419         if (hostapd_enable_iface(iface) < 0) {
1420                 wpa_printf(MSG_ERROR, "Enabling of interface failed");
1421                 return -1;
1422         }
1423         return 0;
1424 }
1425
1426
1427 static int hostapd_ctrl_iface_reload(struct hostapd_iface *iface)
1428 {
1429         if (hostapd_reload_iface(iface) < 0) {
1430                 wpa_printf(MSG_ERROR, "Reloading of interface failed");
1431                 return -1;
1432         }
1433         return 0;
1434 }
1435
1436
1437 static int hostapd_ctrl_iface_disable(struct hostapd_iface *iface)
1438 {
1439         if (hostapd_disable_iface(iface) < 0) {
1440                 wpa_printf(MSG_ERROR, "Disabling of interface failed");
1441                 return -1;
1442         }
1443         return 0;
1444 }
1445
1446
1447 #ifdef CONFIG_TESTING_OPTIONS
1448
1449 static int hostapd_ctrl_iface_radar(struct hostapd_data *hapd, char *cmd)
1450 {
1451         union wpa_event_data data;
1452         char *pos, *param;
1453         enum wpa_event_type event;
1454
1455         wpa_printf(MSG_DEBUG, "RADAR TEST: %s", cmd);
1456
1457         os_memset(&data, 0, sizeof(data));
1458
1459         param = os_strchr(cmd, ' ');
1460         if (param == NULL)
1461                 return -1;
1462         *param++ = '\0';
1463
1464         if (os_strcmp(cmd, "DETECTED") == 0)
1465                 event = EVENT_DFS_RADAR_DETECTED;
1466         else if (os_strcmp(cmd, "CAC-FINISHED") == 0)
1467                 event = EVENT_DFS_CAC_FINISHED;
1468         else if (os_strcmp(cmd, "CAC-ABORTED") == 0)
1469                 event = EVENT_DFS_CAC_ABORTED;
1470         else if (os_strcmp(cmd, "NOP-FINISHED") == 0)
1471                 event = EVENT_DFS_NOP_FINISHED;
1472         else {
1473                 wpa_printf(MSG_DEBUG, "Unsupported RADAR test command: %s",
1474                            cmd);
1475                 return -1;
1476         }
1477
1478         pos = os_strstr(param, "freq=");
1479         if (pos)
1480                 data.dfs_event.freq = atoi(pos + 5);
1481
1482         pos = os_strstr(param, "ht_enabled=1");
1483         if (pos)
1484                 data.dfs_event.ht_enabled = 1;
1485
1486         pos = os_strstr(param, "chan_offset=");
1487         if (pos)
1488                 data.dfs_event.chan_offset = atoi(pos + 12);
1489
1490         pos = os_strstr(param, "chan_width=");
1491         if (pos)
1492                 data.dfs_event.chan_width = atoi(pos + 11);
1493
1494         pos = os_strstr(param, "cf1=");
1495         if (pos)
1496                 data.dfs_event.cf1 = atoi(pos + 4);
1497
1498         pos = os_strstr(param, "cf2=");
1499         if (pos)
1500                 data.dfs_event.cf2 = atoi(pos + 4);
1501
1502         wpa_supplicant_event(hapd, event, &data);
1503
1504         return 0;
1505 }
1506
1507
1508 static int hostapd_ctrl_iface_mgmt_tx(struct hostapd_data *hapd, char *cmd)
1509 {
1510         size_t len;
1511         u8 *buf;
1512         int res;
1513
1514         wpa_printf(MSG_DEBUG, "External MGMT TX: %s", cmd);
1515
1516         len = os_strlen(cmd);
1517         if (len & 1)
1518                 return -1;
1519         len /= 2;
1520
1521         buf = os_malloc(len);
1522         if (buf == NULL)
1523                 return -1;
1524
1525         if (hexstr2bin(cmd, buf, len) < 0) {
1526                 os_free(buf);
1527                 return -1;
1528         }
1529
1530         res = hostapd_drv_send_mlme(hapd, buf, len, 0);
1531         os_free(buf);
1532         return res;
1533 }
1534
1535
1536 static int hostapd_ctrl_iface_eapol_rx(struct hostapd_data *hapd, char *cmd)
1537 {
1538         char *pos;
1539         u8 src[ETH_ALEN], *buf;
1540         int used;
1541         size_t len;
1542
1543         wpa_printf(MSG_DEBUG, "External EAPOL RX: %s", cmd);
1544
1545         pos = cmd;
1546         used = hwaddr_aton2(pos, src);
1547         if (used < 0)
1548                 return -1;
1549         pos += used;
1550         while (*pos == ' ')
1551                 pos++;
1552
1553         len = os_strlen(pos);
1554         if (len & 1)
1555                 return -1;
1556         len /= 2;
1557
1558         buf = os_malloc(len);
1559         if (buf == NULL)
1560                 return -1;
1561
1562         if (hexstr2bin(pos, buf, len) < 0) {
1563                 os_free(buf);
1564                 return -1;
1565         }
1566
1567         ieee802_1x_receive(hapd, src, buf, len);
1568         os_free(buf);
1569
1570         return 0;
1571 }
1572
1573
1574 static u16 ipv4_hdr_checksum(const void *buf, size_t len)
1575 {
1576         size_t i;
1577         u32 sum = 0;
1578         const u16 *pos = buf;
1579
1580         for (i = 0; i < len / 2; i++)
1581                 sum += *pos++;
1582
1583         while (sum >> 16)
1584                 sum = (sum & 0xffff) + (sum >> 16);
1585
1586         return sum ^ 0xffff;
1587 }
1588
1589
1590 #define HWSIM_PACKETLEN 1500
1591 #define HWSIM_IP_LEN (HWSIM_PACKETLEN - sizeof(struct ether_header))
1592
1593 void hostapd_data_test_rx(void *ctx, const u8 *src_addr, const u8 *buf,
1594                           size_t len)
1595 {
1596         struct hostapd_data *hapd = ctx;
1597         const struct ether_header *eth;
1598         struct iphdr ip;
1599         const u8 *pos;
1600         unsigned int i;
1601
1602         if (len != HWSIM_PACKETLEN)
1603                 return;
1604
1605         eth = (const struct ether_header *) buf;
1606         os_memcpy(&ip, eth + 1, sizeof(ip));
1607         pos = &buf[sizeof(*eth) + sizeof(ip)];
1608
1609         if (ip.ihl != 5 || ip.version != 4 ||
1610             ntohs(ip.tot_len) != HWSIM_IP_LEN)
1611                 return;
1612
1613         for (i = 0; i < HWSIM_IP_LEN - sizeof(ip); i++) {
1614                 if (*pos != (u8) i)
1615                         return;
1616                 pos++;
1617         }
1618
1619         wpa_msg(hapd->msg_ctx, MSG_INFO, "DATA-TEST-RX " MACSTR " " MACSTR,
1620                 MAC2STR(eth->ether_dhost), MAC2STR(eth->ether_shost));
1621 }
1622
1623
1624 static int hostapd_ctrl_iface_data_test_config(struct hostapd_data *hapd,
1625                                                char *cmd)
1626 {
1627         int enabled = atoi(cmd);
1628         char *pos;
1629         const char *ifname;
1630
1631         if (!enabled) {
1632                 if (hapd->l2_test) {
1633                         l2_packet_deinit(hapd->l2_test);
1634                         hapd->l2_test = NULL;
1635                         wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
1636                                 "test data: Disabled");
1637                 }
1638                 return 0;
1639         }
1640
1641         if (hapd->l2_test)
1642                 return 0;
1643
1644         pos = os_strstr(cmd, " ifname=");
1645         if (pos)
1646                 ifname = pos + 8;
1647         else
1648                 ifname = hapd->conf->iface;
1649
1650         hapd->l2_test = l2_packet_init(ifname, hapd->own_addr,
1651                                         ETHERTYPE_IP, hostapd_data_test_rx,
1652                                         hapd, 1);
1653         if (hapd->l2_test == NULL)
1654                 return -1;
1655
1656         wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: Enabled");
1657
1658         return 0;
1659 }
1660
1661
1662 static int hostapd_ctrl_iface_data_test_tx(struct hostapd_data *hapd, char *cmd)
1663 {
1664         u8 dst[ETH_ALEN], src[ETH_ALEN];
1665         char *pos;
1666         int used;
1667         long int val;
1668         u8 tos;
1669         u8 buf[2 + HWSIM_PACKETLEN];
1670         struct ether_header *eth;
1671         struct iphdr *ip;
1672         u8 *dpos;
1673         unsigned int i;
1674
1675         if (hapd->l2_test == NULL)
1676                 return -1;
1677
1678         /* format: <dst> <src> <tos> */
1679
1680         pos = cmd;
1681         used = hwaddr_aton2(pos, dst);
1682         if (used < 0)
1683                 return -1;
1684         pos += used;
1685         while (*pos == ' ')
1686                 pos++;
1687         used = hwaddr_aton2(pos, src);
1688         if (used < 0)
1689                 return -1;
1690         pos += used;
1691
1692         val = strtol(pos, NULL, 0);
1693         if (val < 0 || val > 0xff)
1694                 return -1;
1695         tos = val;
1696
1697         eth = (struct ether_header *) &buf[2];
1698         os_memcpy(eth->ether_dhost, dst, ETH_ALEN);
1699         os_memcpy(eth->ether_shost, src, ETH_ALEN);
1700         eth->ether_type = htons(ETHERTYPE_IP);
1701         ip = (struct iphdr *) (eth + 1);
1702         os_memset(ip, 0, sizeof(*ip));
1703         ip->ihl = 5;
1704         ip->version = 4;
1705         ip->ttl = 64;
1706         ip->tos = tos;
1707         ip->tot_len = htons(HWSIM_IP_LEN);
1708         ip->protocol = 1;
1709         ip->saddr = htonl(192U << 24 | 168 << 16 | 1 << 8 | 1);
1710         ip->daddr = htonl(192U << 24 | 168 << 16 | 1 << 8 | 2);
1711         ip->check = ipv4_hdr_checksum(ip, sizeof(*ip));
1712         dpos = (u8 *) (ip + 1);
1713         for (i = 0; i < HWSIM_IP_LEN - sizeof(*ip); i++)
1714                 *dpos++ = i;
1715
1716         if (l2_packet_send(hapd->l2_test, dst, ETHERTYPE_IP, &buf[2],
1717                            HWSIM_PACKETLEN) < 0)
1718                 return -1;
1719
1720         wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: TX dst=" MACSTR
1721                 " src=" MACSTR " tos=0x%x", MAC2STR(dst), MAC2STR(src), tos);
1722
1723         return 0;
1724 }
1725
1726
1727 static int hostapd_ctrl_iface_data_test_frame(struct hostapd_data *hapd,
1728                                               char *cmd)
1729 {
1730         u8 *buf;
1731         struct ether_header *eth;
1732         struct l2_packet_data *l2 = NULL;
1733         size_t len;
1734         u16 ethertype;
1735         int res = -1;
1736         const char *ifname = hapd->conf->iface;
1737
1738         if (os_strncmp(cmd, "ifname=", 7) == 0) {
1739                 cmd += 7;
1740                 ifname = cmd;
1741                 cmd = os_strchr(cmd, ' ');
1742                 if (cmd == NULL)
1743                         return -1;
1744                 *cmd++ = '\0';
1745         }
1746
1747         len = os_strlen(cmd);
1748         if (len & 1 || len < ETH_HLEN * 2)
1749                 return -1;
1750         len /= 2;
1751
1752         buf = os_malloc(len);
1753         if (buf == NULL)
1754                 return -1;
1755
1756         if (hexstr2bin(cmd, buf, len) < 0)
1757                 goto done;
1758
1759         eth = (struct ether_header *) buf;
1760         ethertype = ntohs(eth->ether_type);
1761
1762         l2 = l2_packet_init(ifname, hapd->own_addr, ethertype,
1763                             hostapd_data_test_rx, hapd, 1);
1764         if (l2 == NULL)
1765                 goto done;
1766
1767         res = l2_packet_send(l2, eth->ether_dhost, ethertype, buf, len);
1768         wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: TX frame res=%d", res);
1769 done:
1770         if (l2)
1771                 l2_packet_deinit(l2);
1772         os_free(buf);
1773
1774         return res < 0 ? -1 : 0;
1775 }
1776
1777
1778 static int hostapd_ctrl_test_alloc_fail(struct hostapd_data *hapd, char *cmd)
1779 {
1780 #ifdef WPA_TRACE_BFD
1781         char *pos;
1782
1783         wpa_trace_fail_after = atoi(cmd);
1784         pos = os_strchr(cmd, ':');
1785         if (pos) {
1786                 pos++;
1787                 os_strlcpy(wpa_trace_fail_func, pos,
1788                            sizeof(wpa_trace_fail_func));
1789         } else {
1790                 wpa_trace_fail_after = 0;
1791         }
1792
1793         return 0;
1794 #else /* WPA_TRACE_BFD */
1795         return -1;
1796 #endif /* WPA_TRACE_BFD */
1797 }
1798
1799
1800 static int hostapd_ctrl_get_alloc_fail(struct hostapd_data *hapd,
1801                                        char *buf, size_t buflen)
1802 {
1803 #ifdef WPA_TRACE_BFD
1804         return os_snprintf(buf, buflen, "%u:%s", wpa_trace_fail_after,
1805                            wpa_trace_fail_func);
1806 #else /* WPA_TRACE_BFD */
1807         return -1;
1808 #endif /* WPA_TRACE_BFD */
1809 }
1810
1811
1812 static int hostapd_ctrl_test_fail(struct hostapd_data *hapd, char *cmd)
1813 {
1814 #ifdef WPA_TRACE_BFD
1815         char *pos;
1816
1817         wpa_trace_test_fail_after = atoi(cmd);
1818         pos = os_strchr(cmd, ':');
1819         if (pos) {
1820                 pos++;
1821                 os_strlcpy(wpa_trace_test_fail_func, pos,
1822                            sizeof(wpa_trace_test_fail_func));
1823         } else {
1824                 wpa_trace_test_fail_after = 0;
1825         }
1826
1827         return 0;
1828 #else /* WPA_TRACE_BFD */
1829         return -1;
1830 #endif /* WPA_TRACE_BFD */
1831 }
1832
1833
1834 static int hostapd_ctrl_get_fail(struct hostapd_data *hapd,
1835                                  char *buf, size_t buflen)
1836 {
1837 #ifdef WPA_TRACE_BFD
1838         return os_snprintf(buf, buflen, "%u:%s", wpa_trace_test_fail_after,
1839                            wpa_trace_test_fail_func);
1840 #else /* WPA_TRACE_BFD */
1841         return -1;
1842 #endif /* WPA_TRACE_BFD */
1843 }
1844
1845 #endif /* CONFIG_TESTING_OPTIONS */
1846
1847
1848 static int hostapd_ctrl_iface_chan_switch(struct hostapd_iface *iface,
1849                                           char *pos)
1850 {
1851 #ifdef NEED_AP_MLME
1852         struct csa_settings settings;
1853         int ret;
1854         unsigned int i;
1855
1856         ret = hostapd_parse_csa_settings(pos, &settings);
1857         if (ret)
1858                 return ret;
1859
1860         for (i = 0; i < iface->num_bss; i++) {
1861                 ret = hostapd_switch_channel(iface->bss[i], &settings);
1862                 if (ret) {
1863                         /* FIX: What do we do if CSA fails in the middle of
1864                          * submitting multi-BSS CSA requests? */
1865                         return ret;
1866                 }
1867         }
1868
1869         return 0;
1870 #else /* NEED_AP_MLME */
1871         return -1;
1872 #endif /* NEED_AP_MLME */
1873 }
1874
1875
1876 static int hostapd_ctrl_iface_mib(struct hostapd_data *hapd, char *reply,
1877                                   int reply_size, const char *param)
1878 {
1879 #ifdef RADIUS_SERVER
1880         if (os_strcmp(param, "radius_server") == 0) {
1881                 return radius_server_get_mib(hapd->radius_srv, reply,
1882                                              reply_size);
1883         }
1884 #endif /* RADIUS_SERVER */
1885         return -1;
1886 }
1887
1888
1889 static int hostapd_ctrl_iface_vendor(struct hostapd_data *hapd, char *cmd,
1890                                      char *buf, size_t buflen)
1891 {
1892         int ret;
1893         char *pos;
1894         u8 *data = NULL;
1895         unsigned int vendor_id, subcmd;
1896         struct wpabuf *reply;
1897         size_t data_len = 0;
1898
1899         /* cmd: <vendor id> <subcommand id> [<hex formatted data>] */
1900         vendor_id = strtoul(cmd, &pos, 16);
1901         if (!isblank((unsigned char) *pos))
1902                 return -EINVAL;
1903
1904         subcmd = strtoul(pos, &pos, 10);
1905
1906         if (*pos != '\0') {
1907                 if (!isblank((unsigned char) *pos++))
1908                         return -EINVAL;
1909                 data_len = os_strlen(pos);
1910         }
1911
1912         if (data_len) {
1913                 data_len /= 2;
1914                 data = os_malloc(data_len);
1915                 if (!data)
1916                         return -ENOBUFS;
1917
1918                 if (hexstr2bin(pos, data, data_len)) {
1919                         wpa_printf(MSG_DEBUG,
1920                                    "Vendor command: wrong parameter format");
1921                         os_free(data);
1922                         return -EINVAL;
1923                 }
1924         }
1925
1926         reply = wpabuf_alloc((buflen - 1) / 2);
1927         if (!reply) {
1928                 os_free(data);
1929                 return -ENOBUFS;
1930         }
1931
1932         ret = hostapd_drv_vendor_cmd(hapd, vendor_id, subcmd, data, data_len,
1933                                      reply);
1934
1935         if (ret == 0)
1936                 ret = wpa_snprintf_hex(buf, buflen, wpabuf_head_u8(reply),
1937                                        wpabuf_len(reply));
1938
1939         wpabuf_free(reply);
1940         os_free(data);
1941
1942         return ret;
1943 }
1944
1945
1946 static int hostapd_ctrl_iface_eapol_reauth(struct hostapd_data *hapd,
1947                                            const char *cmd)
1948 {
1949         u8 addr[ETH_ALEN];
1950         struct sta_info *sta;
1951
1952         if (hwaddr_aton(cmd, addr))
1953                 return -1;
1954
1955         sta = ap_get_sta(hapd, addr);
1956         if (!sta || !sta->eapol_sm)
1957                 return -1;
1958
1959         eapol_auth_reauthenticate(sta->eapol_sm);
1960         return 0;
1961 }
1962
1963
1964 static int hostapd_ctrl_iface_eapol_set(struct hostapd_data *hapd, char *cmd)
1965 {
1966         u8 addr[ETH_ALEN];
1967         struct sta_info *sta;
1968         char *pos = cmd, *param;
1969
1970         if (hwaddr_aton(pos, addr) || pos[17] != ' ')
1971                 return -1;
1972         pos += 18;
1973         param = pos;
1974         pos = os_strchr(pos, ' ');
1975         if (!pos)
1976                 return -1;
1977         *pos++ = '\0';
1978
1979         sta = ap_get_sta(hapd, addr);
1980         if (!sta || !sta->eapol_sm)
1981                 return -1;
1982
1983         return eapol_auth_set_conf(sta->eapol_sm, param, pos);
1984 }
1985
1986
1987 static int hostapd_ctrl_iface_log_level(struct hostapd_data *hapd, char *cmd,
1988                                         char *buf, size_t buflen)
1989 {
1990         char *pos, *end, *stamp;
1991         int ret;
1992
1993         /* cmd: "LOG_LEVEL [<level>]" */
1994         if (*cmd == '\0') {
1995                 pos = buf;
1996                 end = buf + buflen;
1997                 ret = os_snprintf(pos, end - pos, "Current level: %s\n"
1998                                   "Timestamp: %d\n",
1999                                   debug_level_str(wpa_debug_level),
2000                                   wpa_debug_timestamp);
2001                 if (os_snprintf_error(end - pos, ret))
2002                         ret = 0;
2003
2004                 return ret;
2005         }
2006
2007         while (*cmd == ' ')
2008                 cmd++;
2009
2010         stamp = os_strchr(cmd, ' ');
2011         if (stamp) {
2012                 *stamp++ = '\0';
2013                 while (*stamp == ' ') {
2014                         stamp++;
2015                 }
2016         }
2017
2018         if (os_strlen(cmd)) {
2019                 int level = str_to_debug_level(cmd);
2020                 if (level < 0)
2021                         return -1;
2022                 wpa_debug_level = level;
2023         }
2024
2025         if (stamp && os_strlen(stamp))
2026                 wpa_debug_timestamp = atoi(stamp);
2027
2028         os_memcpy(buf, "OK\n", 3);
2029         return 3;
2030 }
2031
2032
2033 #ifdef NEED_AP_MLME
2034 static int hostapd_ctrl_iface_track_sta_list(struct hostapd_data *hapd,
2035                                              char *buf, size_t buflen)
2036 {
2037         struct hostapd_iface *iface = hapd->iface;
2038         char *pos, *end;
2039         struct hostapd_sta_info *info;
2040         struct os_reltime now;
2041
2042         sta_track_expire(iface, 0);
2043
2044         pos = buf;
2045         end = buf + buflen;
2046
2047         os_get_reltime(&now);
2048         dl_list_for_each_reverse(info, &iface->sta_seen,
2049                                  struct hostapd_sta_info, list) {
2050                 struct os_reltime age;
2051                 int ret;
2052
2053                 os_reltime_sub(&now, &info->last_seen, &age);
2054                 ret = os_snprintf(pos, end - pos, MACSTR " %u\n",
2055                                   MAC2STR(info->addr), (unsigned int) age.sec);
2056                 if (os_snprintf_error(end - pos, ret))
2057                         break;
2058                 pos += ret;
2059         }
2060
2061         return pos - buf;
2062 }
2063 #endif /* NEED_AP_MLME */
2064
2065
2066 static int hostapd_ctrl_iface_req_lci(struct hostapd_data *hapd,
2067                                       const char *cmd)
2068 {
2069         u8 addr[ETH_ALEN];
2070
2071         if (hwaddr_aton(cmd, addr)) {
2072                 wpa_printf(MSG_INFO, "CTRL: REQ_LCI: Invalid MAC address");
2073                 return -1;
2074         }
2075
2076         return hostapd_send_lci_req(hapd, addr);
2077 }
2078
2079
2080 int hostapd_ctrl_iface_req_range(struct hostapd_data *hapd, char *cmd)
2081 {
2082         u8 addr[ETH_ALEN];
2083         char *token, *context = NULL;
2084         int random_interval, min_ap;
2085         u8 responders[ETH_ALEN * RRM_RANGE_REQ_MAX_RESPONDERS];
2086         unsigned int n_responders;
2087
2088         token = str_token(cmd, " ", &context);
2089         if (!token || hwaddr_aton(token, addr)) {
2090                 wpa_printf(MSG_INFO,
2091                            "CTRL: REQ_RANGE - Bad destination address");
2092                 return -1;
2093         }
2094
2095         token = str_token(cmd, " ", &context);
2096         if (!token)
2097                 return -1;
2098
2099         random_interval = atoi(token);
2100         if (random_interval < 0 || random_interval > 0xffff)
2101                 return -1;
2102
2103         token = str_token(cmd, " ", &context);
2104         if (!token)
2105                 return -1;
2106
2107         min_ap = atoi(token);
2108         if (min_ap <= 0 || min_ap > WLAN_RRM_RANGE_REQ_MAX_MIN_AP)
2109                 return -1;
2110
2111         n_responders = 0;
2112         while ((token = str_token(cmd, " ", &context))) {
2113                 if (n_responders == RRM_RANGE_REQ_MAX_RESPONDERS) {
2114                         wpa_printf(MSG_INFO,
2115                                    "CTRL: REQ_RANGE: Too many responders");
2116                         return -1;
2117                 }
2118
2119                 if (hwaddr_aton(token, responders + n_responders * ETH_ALEN)) {
2120                         wpa_printf(MSG_INFO,
2121                                    "CTRL: REQ_RANGE: Bad responder address");
2122                         return -1;
2123                 }
2124
2125                 n_responders++;
2126         }
2127
2128         if (!n_responders) {
2129                 wpa_printf(MSG_INFO,
2130                            "CTRL: REQ_RANGE - No FTM responder address");
2131                 return -1;
2132         }
2133
2134         return hostapd_send_range_req(hapd, addr, random_interval, min_ap,
2135                                       responders, n_responders);
2136 }
2137
2138
2139 static int hostapd_ctrl_iface_set_neighbor(struct hostapd_data *hapd, char *buf)
2140 {
2141         struct wpa_ssid_value ssid;
2142         u8 bssid[ETH_ALEN];
2143         struct wpabuf *nr, *lci = NULL, *civic = NULL;
2144         char *tmp;
2145         int ret;
2146
2147         if (!(hapd->conf->radio_measurements[0] &
2148               WLAN_RRM_CAPS_NEIGHBOR_REPORT)) {
2149                 wpa_printf(MSG_ERROR,
2150                            "CTRL: SET_NEIGHBOR: Neighbor report is not enabled");
2151                 return -1;
2152         }
2153
2154         if (hwaddr_aton(buf, bssid)) {
2155                 wpa_printf(MSG_ERROR, "CTRL: SET_NEIGHBOR: Bad BSSID");
2156                 return -1;
2157         }
2158
2159         tmp = os_strstr(buf, "ssid=");
2160         if (!tmp || ssid_parse(tmp + 5, &ssid)) {
2161                 wpa_printf(MSG_ERROR,
2162                            "CTRL: SET_NEIGHBOR: Bad or missing SSID");
2163                 return -1;
2164         }
2165         buf = os_strchr(tmp + 6, tmp[5] == '"' ? '"' : ' ');
2166         if (!buf)
2167                 return -1;
2168
2169         tmp = os_strstr(buf, "nr=");
2170         if (!tmp) {
2171                 wpa_printf(MSG_ERROR,
2172                            "CTRL: SET_NEIGHBOR: Missing Neighbor Report element");
2173                 return -1;
2174         }
2175
2176         buf = os_strchr(tmp, ' ');
2177         if (buf)
2178                 *buf++ = '\0';
2179
2180         nr = wpabuf_parse_bin(tmp + 3);
2181         if (!nr) {
2182                 wpa_printf(MSG_ERROR,
2183                            "CTRL: SET_NEIGHBOR: Bad Neighbor Report element");
2184                 return -1;
2185         }
2186
2187         if (!buf)
2188                 goto set;
2189
2190         tmp = os_strstr(buf, "lci=");
2191         if (tmp) {
2192                 buf = os_strchr(tmp, ' ');
2193                 if (buf)
2194                         *buf++ = '\0';
2195                 lci = wpabuf_parse_bin(tmp + 4);
2196                 if (!lci) {
2197                         wpa_printf(MSG_ERROR,
2198                                    "CTRL: SET_NEIGHBOR: Bad LCI subelement");
2199                         wpabuf_free(nr);
2200                         return -1;
2201                 }
2202         }
2203
2204         if (!buf)
2205                 goto set;
2206
2207         tmp = os_strstr(buf, "civic=");
2208         if (tmp) {
2209                 buf = os_strchr(tmp, ' ');
2210                 if (buf)
2211                         *buf++ = '\0';
2212                 civic = wpabuf_parse_bin(tmp + 6);
2213                 if (!civic) {
2214                         wpa_printf(MSG_ERROR,
2215                                    "CTRL: SET_NEIGHBOR: Bad civic subelement");
2216                         wpabuf_free(nr);
2217                         wpabuf_free(lci);
2218                         return -1;
2219                 }
2220         }
2221
2222 set:
2223         ret = hostapd_neighbor_set(hapd, bssid, &ssid, nr, lci, civic);
2224
2225         wpabuf_free(nr);
2226         wpabuf_free(lci);
2227         wpabuf_free(civic);
2228
2229         return ret;
2230 }
2231
2232
2233 static int hostapd_ctrl_iface_remove_neighbor(struct hostapd_data *hapd,
2234                                               char *buf)
2235 {
2236         struct wpa_ssid_value ssid;
2237         u8 bssid[ETH_ALEN];
2238         char *tmp;
2239
2240         if (hwaddr_aton(buf, bssid)) {
2241                 wpa_printf(MSG_ERROR, "CTRL: REMOVE_NEIGHBOR: Bad BSSID");
2242                 return -1;
2243         }
2244
2245         tmp = os_strstr(buf, "ssid=");
2246         if (!tmp || ssid_parse(tmp + 5, &ssid)) {
2247                 wpa_printf(MSG_ERROR,
2248                            "CTRL: REMOVE_NEIGHBORr: Bad or missing SSID");
2249                 return -1;
2250         }
2251
2252         return hostapd_neighbor_remove(hapd, bssid, &ssid);
2253 }
2254
2255
2256 static int hostapd_ctrl_iface_receive_process(struct hostapd_data *hapd,
2257                                               char *buf, char *reply,
2258                                               int reply_size,
2259                                               struct sockaddr_storage *from,
2260                                               socklen_t fromlen)
2261 {
2262         int reply_len, res;
2263
2264         os_memcpy(reply, "OK\n", 3);
2265         reply_len = 3;
2266
2267         if (os_strcmp(buf, "PING") == 0) {
2268                 os_memcpy(reply, "PONG\n", 5);
2269                 reply_len = 5;
2270         } else if (os_strncmp(buf, "RELOG", 5) == 0) {
2271                 if (wpa_debug_reopen_file() < 0)
2272                         reply_len = -1;
2273         } else if (os_strcmp(buf, "STATUS") == 0) {
2274                 reply_len = hostapd_ctrl_iface_status(hapd, reply,
2275                                                       reply_size);
2276         } else if (os_strcmp(buf, "STATUS-DRIVER") == 0) {
2277                 reply_len = hostapd_drv_status(hapd, reply, reply_size);
2278         } else if (os_strcmp(buf, "MIB") == 0) {
2279                 reply_len = ieee802_11_get_mib(hapd, reply, reply_size);
2280                 if (reply_len >= 0) {
2281                         res = wpa_get_mib(hapd->wpa_auth, reply + reply_len,
2282                                           reply_size - reply_len);
2283                         if (res < 0)
2284                                 reply_len = -1;
2285                         else
2286                                 reply_len += res;
2287                 }
2288                 if (reply_len >= 0) {
2289                         res = ieee802_1x_get_mib(hapd, reply + reply_len,
2290                                                  reply_size - reply_len);
2291                         if (res < 0)
2292                                 reply_len = -1;
2293                         else
2294                                 reply_len += res;
2295                 }
2296 #ifndef CONFIG_NO_RADIUS
2297                 if (reply_len >= 0) {
2298                         res = radius_client_get_mib(hapd->radius,
2299                                                     reply + reply_len,
2300                                                     reply_size - reply_len);
2301                         if (res < 0)
2302                                 reply_len = -1;
2303                         else
2304                                 reply_len += res;
2305                 }
2306 #endif /* CONFIG_NO_RADIUS */
2307         } else if (os_strncmp(buf, "MIB ", 4) == 0) {
2308                 reply_len = hostapd_ctrl_iface_mib(hapd, reply, reply_size,
2309                                                    buf + 4);
2310         } else if (os_strcmp(buf, "STA-FIRST") == 0) {
2311                 reply_len = hostapd_ctrl_iface_sta_first(hapd, reply,
2312                                                          reply_size);
2313         } else if (os_strncmp(buf, "STA ", 4) == 0) {
2314                 reply_len = hostapd_ctrl_iface_sta(hapd, buf + 4, reply,
2315                                                    reply_size);
2316         } else if (os_strncmp(buf, "STA-NEXT ", 9) == 0) {
2317                 reply_len = hostapd_ctrl_iface_sta_next(hapd, buf + 9, reply,
2318                                                         reply_size);
2319         } else if (os_strcmp(buf, "ATTACH") == 0) {
2320                 if (hostapd_ctrl_iface_attach(hapd, from, fromlen))
2321                         reply_len = -1;
2322         } else if (os_strcmp(buf, "DETACH") == 0) {
2323                 if (hostapd_ctrl_iface_detach(hapd, from, fromlen))
2324                         reply_len = -1;
2325         } else if (os_strncmp(buf, "LEVEL ", 6) == 0) {
2326                 if (hostapd_ctrl_iface_level(hapd, from, fromlen,
2327                                                     buf + 6))
2328                         reply_len = -1;
2329         } else if (os_strncmp(buf, "NEW_STA ", 8) == 0) {
2330                 if (hostapd_ctrl_iface_new_sta(hapd, buf + 8))
2331                         reply_len = -1;
2332         } else if (os_strncmp(buf, "DEAUTHENTICATE ", 15) == 0) {
2333                 if (hostapd_ctrl_iface_deauthenticate(hapd, buf + 15))
2334                         reply_len = -1;
2335         } else if (os_strncmp(buf, "DISASSOCIATE ", 13) == 0) {
2336                 if (hostapd_ctrl_iface_disassociate(hapd, buf + 13))
2337                         reply_len = -1;
2338         } else if (os_strncmp(buf, "POLL_STA ", 9) == 0) {
2339                 if (hostapd_ctrl_iface_poll_sta(hapd, buf + 9))
2340                         reply_len = -1;
2341         } else if (os_strcmp(buf, "STOP_AP") == 0) {
2342                 if (hostapd_ctrl_iface_stop_ap(hapd))
2343                         reply_len = -1;
2344 #ifdef CONFIG_IEEE80211W
2345 #ifdef NEED_AP_MLME
2346         } else if (os_strncmp(buf, "SA_QUERY ", 9) == 0) {
2347                 if (hostapd_ctrl_iface_sa_query(hapd, buf + 9))
2348                         reply_len = -1;
2349 #endif /* NEED_AP_MLME */
2350 #endif /* CONFIG_IEEE80211W */
2351 #ifdef CONFIG_WPS
2352         } else if (os_strncmp(buf, "WPS_PIN ", 8) == 0) {
2353                 if (hostapd_ctrl_iface_wps_pin(hapd, buf + 8))
2354                         reply_len = -1;
2355         } else if (os_strncmp(buf, "WPS_CHECK_PIN ", 14) == 0) {
2356                 reply_len = hostapd_ctrl_iface_wps_check_pin(
2357                         hapd, buf + 14, reply, reply_size);
2358         } else if (os_strcmp(buf, "WPS_PBC") == 0) {
2359                 if (hostapd_wps_button_pushed(hapd, NULL))
2360                         reply_len = -1;
2361         } else if (os_strcmp(buf, "WPS_CANCEL") == 0) {
2362                 if (hostapd_wps_cancel(hapd))
2363                         reply_len = -1;
2364         } else if (os_strncmp(buf, "WPS_AP_PIN ", 11) == 0) {
2365                 reply_len = hostapd_ctrl_iface_wps_ap_pin(hapd, buf + 11,
2366                                                           reply, reply_size);
2367         } else if (os_strncmp(buf, "WPS_CONFIG ", 11) == 0) {
2368                 if (hostapd_ctrl_iface_wps_config(hapd, buf + 11) < 0)
2369                         reply_len = -1;
2370         } else if (os_strncmp(buf, "WPS_GET_STATUS", 13) == 0) {
2371                 reply_len = hostapd_ctrl_iface_wps_get_status(hapd, reply,
2372                                                               reply_size);
2373 #ifdef CONFIG_WPS_NFC
2374         } else if (os_strncmp(buf, "WPS_NFC_TAG_READ ", 17) == 0) {
2375                 if (hostapd_ctrl_iface_wps_nfc_tag_read(hapd, buf + 17))
2376                         reply_len = -1;
2377         } else if (os_strncmp(buf, "WPS_NFC_CONFIG_TOKEN ", 21) == 0) {
2378                 reply_len = hostapd_ctrl_iface_wps_nfc_config_token(
2379                         hapd, buf + 21, reply, reply_size);
2380         } else if (os_strncmp(buf, "WPS_NFC_TOKEN ", 14) == 0) {
2381                 reply_len = hostapd_ctrl_iface_wps_nfc_token(
2382                         hapd, buf + 14, reply, reply_size);
2383         } else if (os_strncmp(buf, "NFC_GET_HANDOVER_SEL ", 21) == 0) {
2384                 reply_len = hostapd_ctrl_iface_nfc_get_handover_sel(
2385                         hapd, buf + 21, reply, reply_size);
2386         } else if (os_strncmp(buf, "NFC_REPORT_HANDOVER ", 20) == 0) {
2387                 if (hostapd_ctrl_iface_nfc_report_handover(hapd, buf + 20))
2388                         reply_len = -1;
2389 #endif /* CONFIG_WPS_NFC */
2390 #endif /* CONFIG_WPS */
2391 #ifdef CONFIG_INTERWORKING
2392         } else if (os_strncmp(buf, "SET_QOS_MAP_SET ", 16) == 0) {
2393                 if (hostapd_ctrl_iface_set_qos_map_set(hapd, buf + 16))
2394                         reply_len = -1;
2395         } else if (os_strncmp(buf, "SEND_QOS_MAP_CONF ", 18) == 0) {
2396                 if (hostapd_ctrl_iface_send_qos_map_conf(hapd, buf + 18))
2397                         reply_len = -1;
2398 #endif /* CONFIG_INTERWORKING */
2399 #ifdef CONFIG_HS20
2400         } else if (os_strncmp(buf, "HS20_WNM_NOTIF ", 15) == 0) {
2401                 if (hostapd_ctrl_iface_hs20_wnm_notif(hapd, buf + 15))
2402                         reply_len = -1;
2403         } else if (os_strncmp(buf, "HS20_DEAUTH_REQ ", 16) == 0) {
2404                 if (hostapd_ctrl_iface_hs20_deauth_req(hapd, buf + 16))
2405                         reply_len = -1;
2406 #endif /* CONFIG_HS20 */
2407 #ifdef CONFIG_WNM
2408         } else if (os_strncmp(buf, "DISASSOC_IMMINENT ", 18) == 0) {
2409                 if (hostapd_ctrl_iface_disassoc_imminent(hapd, buf + 18))
2410                         reply_len = -1;
2411         } else if (os_strncmp(buf, "ESS_DISASSOC ", 13) == 0) {
2412                 if (hostapd_ctrl_iface_ess_disassoc(hapd, buf + 13))
2413                         reply_len = -1;
2414         } else if (os_strncmp(buf, "BSS_TM_REQ ", 11) == 0) {
2415                 if (hostapd_ctrl_iface_bss_tm_req(hapd, buf + 11))
2416                         reply_len = -1;
2417 #endif /* CONFIG_WNM */
2418         } else if (os_strcmp(buf, "GET_CONFIG") == 0) {
2419                 reply_len = hostapd_ctrl_iface_get_config(hapd, reply,
2420                                                           reply_size);
2421         } else if (os_strncmp(buf, "SET ", 4) == 0) {
2422                 if (hostapd_ctrl_iface_set(hapd, buf + 4))
2423                         reply_len = -1;
2424         } else if (os_strncmp(buf, "GET ", 4) == 0) {
2425                 reply_len = hostapd_ctrl_iface_get(hapd, buf + 4, reply,
2426                                                    reply_size);
2427         } else if (os_strncmp(buf, "ENABLE", 6) == 0) {
2428                 if (hostapd_ctrl_iface_enable(hapd->iface))
2429                         reply_len = -1;
2430         } else if (os_strncmp(buf, "RELOAD", 6) == 0) {
2431                 if (hostapd_ctrl_iface_reload(hapd->iface))
2432                         reply_len = -1;
2433         } else if (os_strncmp(buf, "DISABLE", 7) == 0) {
2434                 if (hostapd_ctrl_iface_disable(hapd->iface))
2435                         reply_len = -1;
2436         } else if (os_strcmp(buf, "UPDATE_BEACON") == 0) {
2437                 if (ieee802_11_set_beacon(hapd))
2438                         reply_len = -1;
2439 #ifdef CONFIG_TESTING_OPTIONS
2440         } else if (os_strncmp(buf, "RADAR ", 6) == 0) {
2441                 if (hostapd_ctrl_iface_radar(hapd, buf + 6))
2442                         reply_len = -1;
2443         } else if (os_strncmp(buf, "MGMT_TX ", 8) == 0) {
2444                 if (hostapd_ctrl_iface_mgmt_tx(hapd, buf + 8))
2445                         reply_len = -1;
2446         } else if (os_strncmp(buf, "EAPOL_RX ", 9) == 0) {
2447                 if (hostapd_ctrl_iface_eapol_rx(hapd, buf + 9) < 0)
2448                         reply_len = -1;
2449         } else if (os_strncmp(buf, "DATA_TEST_CONFIG ", 17) == 0) {
2450                 if (hostapd_ctrl_iface_data_test_config(hapd, buf + 17) < 0)
2451                         reply_len = -1;
2452         } else if (os_strncmp(buf, "DATA_TEST_TX ", 13) == 0) {
2453                 if (hostapd_ctrl_iface_data_test_tx(hapd, buf + 13) < 0)
2454                         reply_len = -1;
2455         } else if (os_strncmp(buf, "DATA_TEST_FRAME ", 16) == 0) {
2456                 if (hostapd_ctrl_iface_data_test_frame(hapd, buf + 16) < 0)
2457                         reply_len = -1;
2458         } else if (os_strncmp(buf, "TEST_ALLOC_FAIL ", 16) == 0) {
2459                 if (hostapd_ctrl_test_alloc_fail(hapd, buf + 16) < 0)
2460                         reply_len = -1;
2461         } else if (os_strcmp(buf, "GET_ALLOC_FAIL") == 0) {
2462                 reply_len = hostapd_ctrl_get_alloc_fail(hapd, reply,
2463                                                         reply_size);
2464         } else if (os_strncmp(buf, "TEST_FAIL ", 10) == 0) {
2465                 if (hostapd_ctrl_test_fail(hapd, buf + 10) < 0)
2466                         reply_len = -1;
2467         } else if (os_strcmp(buf, "GET_FAIL") == 0) {
2468                 reply_len = hostapd_ctrl_get_fail(hapd, reply, reply_size);
2469 #endif /* CONFIG_TESTING_OPTIONS */
2470         } else if (os_strncmp(buf, "CHAN_SWITCH ", 12) == 0) {
2471                 if (hostapd_ctrl_iface_chan_switch(hapd->iface, buf + 12))
2472                         reply_len = -1;
2473         } else if (os_strncmp(buf, "VENDOR ", 7) == 0) {
2474                 reply_len = hostapd_ctrl_iface_vendor(hapd, buf + 7, reply,
2475                                                       reply_size);
2476         } else if (os_strcmp(buf, "ERP_FLUSH") == 0) {
2477                 ieee802_1x_erp_flush(hapd);
2478 #ifdef RADIUS_SERVER
2479                 radius_server_erp_flush(hapd->radius_srv);
2480 #endif /* RADIUS_SERVER */
2481         } else if (os_strncmp(buf, "EAPOL_REAUTH ", 13) == 0) {
2482                 if (hostapd_ctrl_iface_eapol_reauth(hapd, buf + 13))
2483                         reply_len = -1;
2484         } else if (os_strncmp(buf, "EAPOL_SET ", 10) == 0) {
2485                 if (hostapd_ctrl_iface_eapol_set(hapd, buf + 10))
2486                         reply_len = -1;
2487         } else if (os_strncmp(buf, "LOG_LEVEL", 9) == 0) {
2488                 reply_len = hostapd_ctrl_iface_log_level(
2489                         hapd, buf + 9, reply, reply_size);
2490 #ifdef NEED_AP_MLME
2491         } else if (os_strcmp(buf, "TRACK_STA_LIST") == 0) {
2492                 reply_len = hostapd_ctrl_iface_track_sta_list(
2493                         hapd, reply, reply_size);
2494 #endif /* NEED_AP_MLME */
2495         } else if (os_strcmp(buf, "PMKSA") == 0) {
2496                 reply_len = hostapd_ctrl_iface_pmksa_list(hapd, reply,
2497                                                           reply_size);
2498         } else if (os_strcmp(buf, "PMKSA_FLUSH") == 0) {
2499                 hostapd_ctrl_iface_pmksa_flush(hapd);
2500         } else if (os_strncmp(buf, "SET_NEIGHBOR ", 13) == 0) {
2501                 if (hostapd_ctrl_iface_set_neighbor(hapd, buf + 13))
2502                         reply_len = -1;
2503         } else if (os_strncmp(buf, "REMOVE_NEIGHBOR ", 16) == 0) {
2504                 if (hostapd_ctrl_iface_remove_neighbor(hapd, buf + 16))
2505                         reply_len = -1;
2506         } else if (os_strncmp(buf, "REQ_LCI ", 8) == 0) {
2507                 if (hostapd_ctrl_iface_req_lci(hapd, buf + 8))
2508                         reply_len = -1;
2509         } else if (os_strncmp(buf, "REQ_RANGE ", 10) == 0) {
2510                 if (hostapd_ctrl_iface_req_range(hapd, buf + 10))
2511                         reply_len = -1;
2512         } else {
2513                 os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
2514                 reply_len = 16;
2515         }
2516
2517         if (reply_len < 0) {
2518                 os_memcpy(reply, "FAIL\n", 5);
2519                 reply_len = 5;
2520         }
2521
2522         return reply_len;
2523 }
2524
2525
2526 static void hostapd_ctrl_iface_receive(int sock, void *eloop_ctx,
2527                                        void *sock_ctx)
2528 {
2529         struct hostapd_data *hapd = eloop_ctx;
2530         char buf[4096];
2531         int res;
2532         struct sockaddr_storage from;
2533         socklen_t fromlen = sizeof(from);
2534         char *reply, *pos = buf;
2535         const int reply_size = 4096;
2536         int reply_len;
2537         int level = MSG_DEBUG;
2538 #ifdef CONFIG_CTRL_IFACE_UDP
2539         unsigned char lcookie[COOKIE_LEN];
2540 #endif /* CONFIG_CTRL_IFACE_UDP */
2541
2542         res = recvfrom(sock, buf, sizeof(buf) - 1, 0,
2543                        (struct sockaddr *) &from, &fromlen);
2544         if (res < 0) {
2545                 wpa_printf(MSG_ERROR, "recvfrom(ctrl_iface): %s",
2546                            strerror(errno));
2547                 return;
2548         }
2549         buf[res] = '\0';
2550
2551         reply = os_malloc(reply_size);
2552         if (reply == NULL) {
2553                 if (sendto(sock, "FAIL\n", 5, 0, (struct sockaddr *) &from,
2554                            fromlen) < 0) {
2555                         wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
2556                                    strerror(errno));
2557                 }
2558                 return;
2559         }
2560
2561 #ifdef CONFIG_CTRL_IFACE_UDP
2562         if (os_strcmp(buf, "GET_COOKIE") == 0) {
2563                 os_memcpy(reply, "COOKIE=", 7);
2564                 wpa_snprintf_hex(reply + 7, 2 * COOKIE_LEN + 1,
2565                                  cookie, COOKIE_LEN);
2566                 reply_len = 7 + 2 * COOKIE_LEN;
2567                 goto done;
2568         }
2569
2570         if (os_strncmp(buf, "COOKIE=", 7) != 0 ||
2571             hexstr2bin(buf + 7, lcookie, COOKIE_LEN) < 0) {
2572                 wpa_printf(MSG_DEBUG,
2573                            "CTRL: No cookie in the request - drop request");
2574                 os_free(reply);
2575                 return;
2576         }
2577
2578         if (os_memcmp(cookie, lcookie, COOKIE_LEN) != 0) {
2579                 wpa_printf(MSG_DEBUG,
2580                            "CTRL: Invalid cookie in the request - drop request");
2581                 os_free(reply);
2582                 return;
2583         }
2584
2585         pos = buf + 7 + 2 * COOKIE_LEN;
2586         while (*pos == ' ')
2587                 pos++;
2588 #endif /* CONFIG_CTRL_IFACE_UDP */
2589
2590         if (os_strcmp(pos, "PING") == 0)
2591                 level = MSG_EXCESSIVE;
2592         wpa_hexdump_ascii(level, "RX ctrl_iface", pos, res);
2593
2594         reply_len = hostapd_ctrl_iface_receive_process(hapd, pos,
2595                                                        reply, reply_size,
2596                                                        &from, fromlen);
2597
2598 #ifdef CONFIG_CTRL_IFACE_UDP
2599 done:
2600 #endif /* CONFIG_CTRL_IFACE_UDP */
2601         if (sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from,
2602                    fromlen) < 0) {
2603                 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
2604                            strerror(errno));
2605         }
2606         os_free(reply);
2607 }
2608
2609
2610 #ifndef CONFIG_CTRL_IFACE_UDP
2611 static char * hostapd_ctrl_iface_path(struct hostapd_data *hapd)
2612 {
2613         char *buf;
2614         size_t len;
2615
2616         if (hapd->conf->ctrl_interface == NULL)
2617                 return NULL;
2618
2619         len = os_strlen(hapd->conf->ctrl_interface) +
2620                 os_strlen(hapd->conf->iface) + 2;
2621         buf = os_malloc(len);
2622         if (buf == NULL)
2623                 return NULL;
2624
2625         os_snprintf(buf, len, "%s/%s",
2626                     hapd->conf->ctrl_interface, hapd->conf->iface);
2627         buf[len - 1] = '\0';
2628         return buf;
2629 }
2630 #endif /* CONFIG_CTRL_IFACE_UDP */
2631
2632
2633 static void hostapd_ctrl_iface_msg_cb(void *ctx, int level,
2634                                       enum wpa_msg_type type,
2635                                       const char *txt, size_t len)
2636 {
2637         struct hostapd_data *hapd = ctx;
2638         if (hapd == NULL)
2639                 return;
2640         hostapd_ctrl_iface_send(hapd, level, type, txt, len);
2641 }
2642
2643
2644 int hostapd_ctrl_iface_init(struct hostapd_data *hapd)
2645 {
2646 #ifdef CONFIG_CTRL_IFACE_UDP
2647         int port = HOSTAPD_CTRL_IFACE_PORT;
2648         char p[32] = { 0 };
2649         char port_str[40], *tmp;
2650         char *pos;
2651         struct addrinfo hints = { 0 }, *res, *saveres;
2652         int n;
2653
2654         if (hapd->ctrl_sock > -1) {
2655                 wpa_printf(MSG_DEBUG, "ctrl_iface already exists!");
2656                 return 0;
2657         }
2658
2659         if (hapd->conf->ctrl_interface == NULL)
2660                 return 0;
2661
2662         pos = os_strstr(hapd->conf->ctrl_interface, "udp:");
2663         if (pos) {
2664                 pos += 4;
2665                 port = atoi(pos);
2666                 if (port <= 0) {
2667                         wpa_printf(MSG_ERROR, "Invalid ctrl_iface UDP port");
2668                         goto fail;
2669                 }
2670         }
2671
2672         dl_list_init(&hapd->ctrl_dst);
2673         hapd->ctrl_sock = -1;
2674         os_get_random(cookie, COOKIE_LEN);
2675
2676 #ifdef CONFIG_CTRL_IFACE_UDP_REMOTE
2677         hints.ai_flags = AI_PASSIVE;
2678 #endif /* CONFIG_CTRL_IFACE_UDP_REMOTE */
2679
2680 #ifdef CONFIG_CTRL_IFACE_UDP_IPV6
2681         hints.ai_family = AF_INET6;
2682 #else /* CONFIG_CTRL_IFACE_UDP_IPV6 */
2683         hints.ai_family = AF_INET;
2684 #endif /* CONFIG_CTRL_IFACE_UDP_IPV6 */
2685         hints.ai_socktype = SOCK_DGRAM;
2686
2687 try_again:
2688         os_snprintf(p, sizeof(p), "%d", port);
2689         n = getaddrinfo(NULL, p, &hints, &res);
2690         if (n) {
2691                 wpa_printf(MSG_ERROR, "getaddrinfo(): %s", gai_strerror(n));
2692                 goto fail;
2693         }
2694
2695         saveres = res;
2696         hapd->ctrl_sock = socket(res->ai_family, res->ai_socktype,
2697                                  res->ai_protocol);
2698         if (hapd->ctrl_sock < 0) {
2699                 wpa_printf(MSG_ERROR, "socket(PF_INET): %s", strerror(errno));
2700                 goto fail;
2701         }
2702
2703         if (bind(hapd->ctrl_sock, res->ai_addr, res->ai_addrlen) < 0) {
2704                 port--;
2705                 if ((HOSTAPD_CTRL_IFACE_PORT - port) <
2706                     HOSTAPD_CTRL_IFACE_PORT_LIMIT && !pos)
2707                         goto try_again;
2708                 wpa_printf(MSG_ERROR, "bind(AF_INET): %s", strerror(errno));
2709                 goto fail;
2710         }
2711
2712         freeaddrinfo(saveres);
2713
2714         os_snprintf(port_str, sizeof(port_str), "udp:%d", port);
2715         tmp = os_strdup(port_str);
2716         if (tmp) {
2717                 os_free(hapd->conf->ctrl_interface);
2718                 hapd->conf->ctrl_interface = tmp;
2719         }
2720         wpa_printf(MSG_DEBUG, "ctrl_iface_init UDP port: %d", port);
2721
2722         if (eloop_register_read_sock(hapd->ctrl_sock,
2723                                      hostapd_ctrl_iface_receive, hapd, NULL) <
2724             0) {
2725                 hostapd_ctrl_iface_deinit(hapd);
2726                 return -1;
2727         }
2728
2729         hapd->msg_ctx = hapd;
2730         wpa_msg_register_cb(hostapd_ctrl_iface_msg_cb);
2731
2732         return 0;
2733
2734 fail:
2735         if (hapd->ctrl_sock >= 0)
2736                 close(hapd->ctrl_sock);
2737         return -1;
2738 #else /* CONFIG_CTRL_IFACE_UDP */
2739         struct sockaddr_un addr;
2740         int s = -1;
2741         char *fname = NULL;
2742
2743         if (hapd->ctrl_sock > -1) {
2744                 wpa_printf(MSG_DEBUG, "ctrl_iface already exists!");
2745                 return 0;
2746         }
2747
2748         dl_list_init(&hapd->ctrl_dst);
2749
2750         if (hapd->conf->ctrl_interface == NULL)
2751                 return 0;
2752
2753         if (mkdir(hapd->conf->ctrl_interface, S_IRWXU | S_IRWXG) < 0) {
2754                 if (errno == EEXIST) {
2755                         wpa_printf(MSG_DEBUG, "Using existing control "
2756                                    "interface directory.");
2757                 } else {
2758                         wpa_printf(MSG_ERROR, "mkdir[ctrl_interface]: %s",
2759                                    strerror(errno));
2760                         goto fail;
2761                 }
2762         }
2763
2764         if (hapd->conf->ctrl_interface_gid_set &&
2765             chown(hapd->conf->ctrl_interface, -1,
2766                   hapd->conf->ctrl_interface_gid) < 0) {
2767                 wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s",
2768                            strerror(errno));
2769                 return -1;
2770         }
2771
2772         if (!hapd->conf->ctrl_interface_gid_set &&
2773             hapd->iface->interfaces->ctrl_iface_group &&
2774             chown(hapd->conf->ctrl_interface, -1,
2775                   hapd->iface->interfaces->ctrl_iface_group) < 0) {
2776                 wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s",
2777                            strerror(errno));
2778                 return -1;
2779         }
2780
2781 #ifdef ANDROID
2782         /*
2783          * Android is using umask 0077 which would leave the control interface
2784          * directory without group access. This breaks things since Wi-Fi
2785          * framework assumes that this directory can be accessed by other
2786          * applications in the wifi group. Fix this by adding group access even
2787          * if umask value would prevent this.
2788          */
2789         if (chmod(hapd->conf->ctrl_interface, S_IRWXU | S_IRWXG) < 0) {
2790                 wpa_printf(MSG_ERROR, "CTRL: Could not chmod directory: %s",
2791                            strerror(errno));
2792                 /* Try to continue anyway */
2793         }
2794 #endif /* ANDROID */
2795
2796         if (os_strlen(hapd->conf->ctrl_interface) + 1 +
2797             os_strlen(hapd->conf->iface) >= sizeof(addr.sun_path))
2798                 goto fail;
2799
2800         s = socket(PF_UNIX, SOCK_DGRAM, 0);
2801         if (s < 0) {
2802                 wpa_printf(MSG_ERROR, "socket(PF_UNIX): %s", strerror(errno));
2803                 goto fail;
2804         }
2805
2806         os_memset(&addr, 0, sizeof(addr));
2807 #ifdef __FreeBSD__
2808         addr.sun_len = sizeof(addr);
2809 #endif /* __FreeBSD__ */
2810         addr.sun_family = AF_UNIX;
2811         fname = hostapd_ctrl_iface_path(hapd);
2812         if (fname == NULL)
2813                 goto fail;
2814         os_strlcpy(addr.sun_path, fname, sizeof(addr.sun_path));
2815         if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
2816                 wpa_printf(MSG_DEBUG, "ctrl_iface bind(PF_UNIX) failed: %s",
2817                            strerror(errno));
2818                 if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
2819                         wpa_printf(MSG_DEBUG, "ctrl_iface exists, but does not"
2820                                    " allow connections - assuming it was left"
2821                                    "over from forced program termination");
2822                         if (unlink(fname) < 0) {
2823                                 wpa_printf(MSG_ERROR,
2824                                            "Could not unlink existing ctrl_iface socket '%s': %s",
2825                                            fname, strerror(errno));
2826                                 goto fail;
2827                         }
2828                         if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) <
2829                             0) {
2830                                 wpa_printf(MSG_ERROR,
2831                                            "hostapd-ctrl-iface: bind(PF_UNIX): %s",
2832                                            strerror(errno));
2833                                 goto fail;
2834                         }
2835                         wpa_printf(MSG_DEBUG, "Successfully replaced leftover "
2836                                    "ctrl_iface socket '%s'", fname);
2837                 } else {
2838                         wpa_printf(MSG_INFO, "ctrl_iface exists and seems to "
2839                                    "be in use - cannot override it");
2840                         wpa_printf(MSG_INFO, "Delete '%s' manually if it is "
2841                                    "not used anymore", fname);
2842                         os_free(fname);
2843                         fname = NULL;
2844                         goto fail;
2845                 }
2846         }
2847
2848         if (hapd->conf->ctrl_interface_gid_set &&
2849             chown(fname, -1, hapd->conf->ctrl_interface_gid) < 0) {
2850                 wpa_printf(MSG_ERROR, "chown[ctrl_interface/ifname]: %s",
2851                            strerror(errno));
2852                 goto fail;
2853         }
2854
2855         if (!hapd->conf->ctrl_interface_gid_set &&
2856             hapd->iface->interfaces->ctrl_iface_group &&
2857             chown(fname, -1, hapd->iface->interfaces->ctrl_iface_group) < 0) {
2858                 wpa_printf(MSG_ERROR, "chown[ctrl_interface/ifname]: %s",
2859                            strerror(errno));
2860                 goto fail;
2861         }
2862
2863         if (chmod(fname, S_IRWXU | S_IRWXG) < 0) {
2864                 wpa_printf(MSG_ERROR, "chmod[ctrl_interface/ifname]: %s",
2865                            strerror(errno));
2866                 goto fail;
2867         }
2868         os_free(fname);
2869
2870         hapd->ctrl_sock = s;
2871         if (eloop_register_read_sock(s, hostapd_ctrl_iface_receive, hapd,
2872                                      NULL) < 0) {
2873                 hostapd_ctrl_iface_deinit(hapd);
2874                 return -1;
2875         }
2876         hapd->msg_ctx = hapd;
2877         wpa_msg_register_cb(hostapd_ctrl_iface_msg_cb);
2878
2879         return 0;
2880
2881 fail:
2882         if (s >= 0)
2883                 close(s);
2884         if (fname) {
2885                 unlink(fname);
2886                 os_free(fname);
2887         }
2888         return -1;
2889 #endif /* CONFIG_CTRL_IFACE_UDP */
2890 }
2891
2892
2893 void hostapd_ctrl_iface_deinit(struct hostapd_data *hapd)
2894 {
2895         struct wpa_ctrl_dst *dst, *prev;
2896
2897         if (hapd->ctrl_sock > -1) {
2898 #ifndef CONFIG_CTRL_IFACE_UDP
2899                 char *fname;
2900 #endif /* !CONFIG_CTRL_IFACE_UDP */
2901
2902                 eloop_unregister_read_sock(hapd->ctrl_sock);
2903                 close(hapd->ctrl_sock);
2904                 hapd->ctrl_sock = -1;
2905 #ifndef CONFIG_CTRL_IFACE_UDP
2906                 fname = hostapd_ctrl_iface_path(hapd);
2907                 if (fname)
2908                         unlink(fname);
2909                 os_free(fname);
2910
2911                 if (hapd->conf->ctrl_interface &&
2912                     rmdir(hapd->conf->ctrl_interface) < 0) {
2913                         if (errno == ENOTEMPTY) {
2914                                 wpa_printf(MSG_DEBUG, "Control interface "
2915                                            "directory not empty - leaving it "
2916                                            "behind");
2917                         } else {
2918                                 wpa_printf(MSG_ERROR,
2919                                            "rmdir[ctrl_interface=%s]: %s",
2920                                            hapd->conf->ctrl_interface,
2921                                            strerror(errno));
2922                         }
2923                 }
2924 #endif /* !CONFIG_CTRL_IFACE_UDP */
2925         }
2926
2927         dl_list_for_each_safe(dst, prev, &hapd->ctrl_dst, struct wpa_ctrl_dst,
2928                               list)
2929                 os_free(dst);
2930
2931 #ifdef CONFIG_TESTING_OPTIONS
2932         l2_packet_deinit(hapd->l2_test);
2933         hapd->l2_test = NULL;
2934 #endif /* CONFIG_TESTING_OPTIONS */
2935 }
2936
2937
2938 static int hostapd_ctrl_iface_add(struct hapd_interfaces *interfaces,
2939                                   char *buf)
2940 {
2941         if (hostapd_add_iface(interfaces, buf) < 0) {
2942                 wpa_printf(MSG_ERROR, "Adding interface %s failed", buf);
2943                 return -1;
2944         }
2945         return 0;
2946 }
2947
2948
2949 static int hostapd_ctrl_iface_remove(struct hapd_interfaces *interfaces,
2950                                      char *buf)
2951 {
2952         if (hostapd_remove_iface(interfaces, buf) < 0) {
2953                 wpa_printf(MSG_ERROR, "Removing interface %s failed", buf);
2954                 return -1;
2955         }
2956         return 0;
2957 }
2958
2959
2960 static int hostapd_global_ctrl_iface_attach(struct hapd_interfaces *interfaces,
2961                                             struct sockaddr_storage *from,
2962                                             socklen_t fromlen)
2963 {
2964         return ctrl_iface_attach(&interfaces->global_ctrl_dst, from, fromlen);
2965 }
2966
2967
2968 static int hostapd_global_ctrl_iface_detach(struct hapd_interfaces *interfaces,
2969                                             struct sockaddr_storage *from,
2970                                             socklen_t fromlen)
2971 {
2972         return ctrl_iface_detach(&interfaces->global_ctrl_dst, from, fromlen);
2973 }
2974
2975
2976 static void hostapd_ctrl_iface_flush(struct hapd_interfaces *interfaces)
2977 {
2978 #ifdef CONFIG_WPS_TESTING
2979         wps_version_number = 0x20;
2980         wps_testing_dummy_cred = 0;
2981         wps_corrupt_pkhash = 0;
2982 #endif /* CONFIG_WPS_TESTING */
2983 }
2984
2985
2986 #ifdef CONFIG_FST
2987
2988 static int
2989 hostapd_global_ctrl_iface_fst_attach(struct hapd_interfaces *interfaces,
2990                                      const char *cmd)
2991 {
2992         char ifname[IFNAMSIZ + 1];
2993         struct fst_iface_cfg cfg;
2994         struct hostapd_data *hapd;
2995         struct fst_wpa_obj iface_obj;
2996
2997         if (!fst_parse_attach_command(cmd, ifname, sizeof(ifname), &cfg)) {
2998                 hapd = hostapd_get_iface(interfaces, ifname);
2999                 if (hapd) {
3000                         if (hapd->iface->fst) {
3001                                 wpa_printf(MSG_INFO, "FST: Already attached");
3002                                 return -1;
3003                         }
3004                         fst_hostapd_fill_iface_obj(hapd, &iface_obj);
3005                         hapd->iface->fst = fst_attach(ifname, hapd->own_addr,
3006                                                       &iface_obj, &cfg);
3007                         if (hapd->iface->fst)
3008                                 return 0;
3009                 }
3010         }
3011
3012         return -EINVAL;
3013 }
3014
3015
3016 static int
3017 hostapd_global_ctrl_iface_fst_detach(struct hapd_interfaces *interfaces,
3018                                      const char *cmd)
3019 {
3020         char ifname[IFNAMSIZ + 1];
3021         struct hostapd_data * hapd;
3022
3023         if (!fst_parse_detach_command(cmd, ifname, sizeof(ifname))) {
3024                 hapd = hostapd_get_iface(interfaces, ifname);
3025                 if (hapd) {
3026                         if (!fst_iface_detach(ifname)) {
3027                                 hapd->iface->fst = NULL;
3028                                 hapd->iface->fst_ies = NULL;
3029                                 return 0;
3030                         }
3031                 }
3032         }
3033
3034         return -EINVAL;
3035 }
3036
3037 #endif /* CONFIG_FST */
3038
3039
3040 static struct hostapd_data *
3041 hostapd_interfaces_get_hapd(struct hapd_interfaces *interfaces,
3042                             const char *ifname)
3043 {
3044         size_t i, j;
3045
3046         for (i = 0; i < interfaces->count; i++) {
3047                 struct hostapd_iface *iface = interfaces->iface[i];
3048
3049                 for (j = 0; j < iface->num_bss; j++) {
3050                         struct hostapd_data *hapd;
3051
3052                         hapd = iface->bss[j];
3053                         if (os_strcmp(ifname, hapd->conf->iface) == 0)
3054                                 return hapd;
3055                 }
3056         }
3057
3058         return NULL;
3059 }
3060
3061
3062 static int hostapd_ctrl_iface_dup_param(struct hostapd_data *src_hapd,
3063                                         struct hostapd_data *dst_hapd,
3064                                         const char *param)
3065 {
3066         int res;
3067         char *value;
3068
3069         value = os_zalloc(HOSTAPD_CLI_DUP_VALUE_MAX_LEN);
3070         if (!value) {
3071                 wpa_printf(MSG_ERROR,
3072                            "DUP: cannot allocate buffer to stringify %s",
3073                            param);
3074                 goto error_return;
3075         }
3076
3077         if (os_strcmp(param, "wpa") == 0) {
3078                 os_snprintf(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN, "%d",
3079                             src_hapd->conf->wpa);
3080         } else if (os_strcmp(param, "wpa_key_mgmt") == 0 &&
3081                    src_hapd->conf->wpa_key_mgmt) {
3082                 res = hostapd_ctrl_iface_get_key_mgmt(
3083                         src_hapd, value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN);
3084                 if (os_snprintf_error(HOSTAPD_CLI_DUP_VALUE_MAX_LEN, res))
3085                         goto error_stringify;
3086         } else if (os_strcmp(param, "wpa_pairwise") == 0 &&
3087                    src_hapd->conf->wpa_pairwise) {
3088                 res = wpa_write_ciphers(value,
3089                                         value + HOSTAPD_CLI_DUP_VALUE_MAX_LEN,
3090                                         src_hapd->conf->wpa_pairwise, " ");
3091                 if (res < 0)
3092                         goto error_stringify;
3093         } else if (os_strcmp(param, "rsn_pairwise") == 0 &&
3094                    src_hapd->conf->rsn_pairwise) {
3095                 res = wpa_write_ciphers(value,
3096                                         value + HOSTAPD_CLI_DUP_VALUE_MAX_LEN,
3097                                         src_hapd->conf->rsn_pairwise, " ");
3098                 if (res < 0)
3099                         goto error_stringify;
3100         } else if (os_strcmp(param, "wpa_passphrase") == 0 &&
3101                    src_hapd->conf->ssid.wpa_passphrase) {
3102                 os_snprintf(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN, "%s",
3103                             src_hapd->conf->ssid.wpa_passphrase);
3104         } else if (os_strcmp(param, "wpa_psk") == 0 &&
3105                    src_hapd->conf->ssid.wpa_psk_set) {
3106                 wpa_snprintf_hex(value, HOSTAPD_CLI_DUP_VALUE_MAX_LEN,
3107                         src_hapd->conf->ssid.wpa_psk->psk, PMK_LEN);
3108         } else {
3109                 wpa_printf(MSG_WARNING, "DUP: %s cannot be duplicated", param);
3110                 goto error_return;
3111         }
3112
3113         res = hostapd_set_iface(dst_hapd->iconf, dst_hapd->conf, param, value);
3114         os_free(value);
3115         return res;
3116
3117 error_stringify:
3118         wpa_printf(MSG_ERROR, "DUP: cannot stringify %s", param);
3119 error_return:
3120         os_free(value);
3121         return -1;
3122 }
3123
3124
3125 static int
3126 hostapd_global_ctrl_iface_interfaces(struct hapd_interfaces *interfaces,
3127                                      const char *input,
3128                                      char *reply, int reply_size)
3129 {
3130         size_t i, j;
3131         int res;
3132         char *pos, *end;
3133         struct hostapd_iface *iface;
3134         int show_ctrl = 0;
3135
3136         if (input)
3137                 show_ctrl = !!os_strstr(input, "ctrl");
3138
3139         pos = reply;
3140         end = reply + reply_size;
3141
3142         for (i = 0; i < interfaces->count; i++) {
3143                 iface = interfaces->iface[i];
3144
3145                 for (j = 0; j < iface->num_bss; j++) {
3146                         struct hostapd_bss_config *conf;
3147
3148                         conf = iface->conf->bss[j];
3149                         if (show_ctrl)
3150                                 res = os_snprintf(pos, end - pos,
3151                                                   "%s ctrl_iface=%s\n",
3152                                                   conf->iface,
3153                                                   conf->ctrl_interface ?
3154                                                   conf->ctrl_interface : "N/A");
3155                         else
3156                                 res = os_snprintf(pos, end - pos, "%s\n",
3157                                                   conf->iface);
3158                         if (os_snprintf_error(end - pos, res)) {
3159                                 *pos = '\0';
3160                                 return pos - reply;
3161                         }
3162                         pos += res;
3163                 }
3164         }
3165
3166         return pos - reply;
3167 }
3168
3169
3170 static int
3171 hostapd_global_ctrl_iface_dup_network(struct hapd_interfaces *interfaces,
3172                                       char *cmd)
3173 {
3174         char *p_start = cmd, *p_end;
3175         struct hostapd_data *src_hapd, *dst_hapd;
3176
3177         /* cmd: "<src ifname> <dst ifname> <variable name> */
3178
3179         p_end = os_strchr(p_start, ' ');
3180         if (!p_end) {
3181                 wpa_printf(MSG_ERROR, "DUP: no src ifname found in cmd: '%s'",
3182                            cmd);
3183                 return -1;
3184         }
3185
3186         *p_end = '\0';
3187         src_hapd = hostapd_interfaces_get_hapd(interfaces, p_start);
3188         if (!src_hapd) {
3189                 wpa_printf(MSG_ERROR, "DUP: no src ifname found: '%s'",
3190                            p_start);
3191                 return -1;
3192         }
3193
3194         p_start = p_end + 1;
3195         p_end = os_strchr(p_start, ' ');
3196         if (!p_end) {
3197                 wpa_printf(MSG_ERROR, "DUP: no dst ifname found in cmd: '%s'",
3198                            cmd);
3199                 return -1;
3200         }
3201
3202         *p_end = '\0';
3203         dst_hapd = hostapd_interfaces_get_hapd(interfaces, p_start);
3204         if (!dst_hapd) {
3205                 wpa_printf(MSG_ERROR, "DUP: no dst ifname found: '%s'",
3206                            p_start);
3207                 return -1;
3208         }
3209
3210         p_start = p_end + 1;
3211         return hostapd_ctrl_iface_dup_param(src_hapd, dst_hapd, p_start);
3212 }
3213
3214
3215 static int hostapd_global_ctrl_iface_ifname(struct hapd_interfaces *interfaces,
3216                                             const char *ifname,
3217                                             char *buf, char *reply,
3218                                             int reply_size,
3219                                             struct sockaddr_storage *from,
3220                                             socklen_t fromlen)
3221 {
3222         struct hostapd_data *hapd;
3223
3224         hapd = hostapd_interfaces_get_hapd(interfaces, ifname);
3225         if (hapd == NULL) {
3226                 int res;
3227
3228                 res = os_snprintf(reply, reply_size, "FAIL-NO-IFNAME-MATCH\n");
3229                 if (os_snprintf_error(reply_size, res))
3230                         return -1;
3231                 return res;
3232         }
3233
3234         return hostapd_ctrl_iface_receive_process(hapd, buf, reply,reply_size,
3235                                                   from, fromlen);
3236 }
3237
3238
3239 static void hostapd_global_ctrl_iface_receive(int sock, void *eloop_ctx,
3240                                               void *sock_ctx)
3241 {
3242         void *interfaces = eloop_ctx;
3243         char buffer[256], *buf = buffer;
3244         int res;
3245         struct sockaddr_storage from;
3246         socklen_t fromlen = sizeof(from);
3247         char *reply;
3248         int reply_len;
3249         const int reply_size = 4096;
3250 #ifdef CONFIG_CTRL_IFACE_UDP
3251         unsigned char lcookie[COOKIE_LEN];
3252 #endif /* CONFIG_CTRL_IFACE_UDP */
3253
3254         res = recvfrom(sock, buffer, sizeof(buffer) - 1, 0,
3255                        (struct sockaddr *) &from, &fromlen);
3256         if (res < 0) {
3257                 wpa_printf(MSG_ERROR, "recvfrom(ctrl_iface): %s",
3258                            strerror(errno));
3259                 return;
3260         }
3261         buf[res] = '\0';
3262         wpa_printf(MSG_DEBUG, "Global ctrl_iface command: %s", buf);
3263
3264         reply = os_malloc(reply_size);
3265         if (reply == NULL) {
3266                 if (sendto(sock, "FAIL\n", 5, 0, (struct sockaddr *) &from,
3267                            fromlen) < 0) {
3268                         wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
3269                                    strerror(errno));
3270                 }
3271                 return;
3272         }
3273
3274         os_memcpy(reply, "OK\n", 3);
3275         reply_len = 3;
3276
3277 #ifdef CONFIG_CTRL_IFACE_UDP
3278         if (os_strcmp(buf, "GET_COOKIE") == 0) {
3279                 os_memcpy(reply, "COOKIE=", 7);
3280                 wpa_snprintf_hex(reply + 7, 2 * COOKIE_LEN + 1,
3281                                  gcookie, COOKIE_LEN);
3282                 reply_len = 7 + 2 * COOKIE_LEN;
3283                 goto send_reply;
3284         }
3285
3286         if (os_strncmp(buf, "COOKIE=", 7) != 0 ||
3287             hexstr2bin(buf + 7, lcookie, COOKIE_LEN) < 0) {
3288                 wpa_printf(MSG_DEBUG,
3289                            "CTRL: No cookie in the request - drop request");
3290                 os_free(reply);
3291                 return;
3292         }
3293
3294         if (os_memcmp(gcookie, lcookie, COOKIE_LEN) != 0) {
3295                 wpa_printf(MSG_DEBUG,
3296                            "CTRL: Invalid cookie in the request - drop request");
3297                 os_free(reply);
3298                 return;
3299         }
3300
3301         buf += 7 + 2 * COOKIE_LEN;
3302         while (*buf == ' ')
3303                 buf++;
3304 #endif /* CONFIG_CTRL_IFACE_UDP */
3305
3306         if (os_strncmp(buf, "IFNAME=", 7) == 0) {
3307                 char *pos = os_strchr(buf + 7, ' ');
3308
3309                 if (pos) {
3310                         *pos++ = '\0';
3311                         reply_len = hostapd_global_ctrl_iface_ifname(
3312                                 interfaces, buf + 7, pos, reply, reply_size,
3313                                 &from, fromlen);
3314                         goto send_reply;
3315                 }
3316         }
3317
3318         if (os_strcmp(buf, "PING") == 0) {
3319                 os_memcpy(reply, "PONG\n", 5);
3320                 reply_len = 5;
3321         } else if (os_strncmp(buf, "RELOG", 5) == 0) {
3322                 if (wpa_debug_reopen_file() < 0)
3323                         reply_len = -1;
3324         } else if (os_strcmp(buf, "FLUSH") == 0) {
3325                 hostapd_ctrl_iface_flush(interfaces);
3326         } else if (os_strncmp(buf, "ADD ", 4) == 0) {
3327                 if (hostapd_ctrl_iface_add(interfaces, buf + 4) < 0)
3328                         reply_len = -1;
3329         } else if (os_strncmp(buf, "REMOVE ", 7) == 0) {
3330                 if (hostapd_ctrl_iface_remove(interfaces, buf + 7) < 0)
3331                         reply_len = -1;
3332         } else if (os_strcmp(buf, "ATTACH") == 0) {
3333                 if (hostapd_global_ctrl_iface_attach(interfaces, &from,
3334                                                      fromlen))
3335                         reply_len = -1;
3336         } else if (os_strcmp(buf, "DETACH") == 0) {
3337                 if (hostapd_global_ctrl_iface_detach(interfaces, &from,
3338                         fromlen))
3339                         reply_len = -1;
3340 #ifdef CONFIG_MODULE_TESTS
3341         } else if (os_strcmp(buf, "MODULE_TESTS") == 0) {
3342                 int hapd_module_tests(void);
3343                 if (hapd_module_tests() < 0)
3344                         reply_len = -1;
3345 #endif /* CONFIG_MODULE_TESTS */
3346 #ifdef CONFIG_FST
3347         } else if (os_strncmp(buf, "FST-ATTACH ", 11) == 0) {
3348                 if (!hostapd_global_ctrl_iface_fst_attach(interfaces, buf + 11))
3349                         reply_len = os_snprintf(reply, reply_size, "OK\n");
3350                 else
3351                         reply_len = -1;
3352         } else if (os_strncmp(buf, "FST-DETACH ", 11) == 0) {
3353                 if (!hostapd_global_ctrl_iface_fst_detach(interfaces, buf + 11))
3354                         reply_len = os_snprintf(reply, reply_size, "OK\n");
3355                 else
3356                         reply_len = -1;
3357         } else if (os_strncmp(buf, "FST-MANAGER ", 12) == 0) {
3358                 reply_len = fst_ctrl_iface_receive(buf + 12, reply, reply_size);
3359 #endif /* CONFIG_FST */
3360         } else if (os_strncmp(buf, "DUP_NETWORK ", 12) == 0) {
3361                 if (!hostapd_global_ctrl_iface_dup_network(interfaces,
3362                                                            buf + 12))
3363                         reply_len = os_snprintf(reply, reply_size, "OK\n");
3364                 else
3365                         reply_len = -1;
3366         } else if (os_strncmp(buf, "INTERFACES", 10) == 0) {
3367                 reply_len = hostapd_global_ctrl_iface_interfaces(
3368                         interfaces, buf + 10, reply, sizeof(buffer));
3369         } else if (os_strcmp(buf, "TERMINATE") == 0) {
3370                 eloop_terminate();
3371         } else {
3372                 wpa_printf(MSG_DEBUG, "Unrecognized global ctrl_iface command "
3373                            "ignored");
3374                 reply_len = -1;
3375         }
3376
3377 send_reply:
3378         if (reply_len < 0) {
3379                 os_memcpy(reply, "FAIL\n", 5);
3380                 reply_len = 5;
3381         }
3382
3383         if (sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from,
3384                    fromlen) < 0) {
3385                 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
3386                            strerror(errno));
3387         }
3388         os_free(reply);
3389 }
3390
3391
3392 #ifndef CONFIG_CTRL_IFACE_UDP
3393 static char * hostapd_global_ctrl_iface_path(struct hapd_interfaces *interface)
3394 {
3395         char *buf;
3396         size_t len;
3397
3398         if (interface->global_iface_path == NULL)
3399                 return NULL;
3400
3401         len = os_strlen(interface->global_iface_path) +
3402                 os_strlen(interface->global_iface_name) + 2;
3403         buf = os_malloc(len);
3404         if (buf == NULL)
3405                 return NULL;
3406
3407         os_snprintf(buf, len, "%s/%s", interface->global_iface_path,
3408                     interface->global_iface_name);
3409         buf[len - 1] = '\0';
3410         return buf;
3411 }
3412 #endif /* CONFIG_CTRL_IFACE_UDP */
3413
3414
3415 int hostapd_global_ctrl_iface_init(struct hapd_interfaces *interface)
3416 {
3417 #ifdef CONFIG_CTRL_IFACE_UDP
3418         int port = HOSTAPD_GLOBAL_CTRL_IFACE_PORT;
3419         char p[32] = { 0 };
3420         char *pos;
3421         struct addrinfo hints = { 0 }, *res, *saveres;
3422         int n;
3423
3424         if (interface->global_ctrl_sock > -1) {
3425                 wpa_printf(MSG_DEBUG, "ctrl_iface already exists!");
3426                 return 0;
3427         }
3428
3429         if (interface->global_iface_path == NULL)
3430                 return 0;
3431
3432         pos = os_strstr(interface->global_iface_path, "udp:");
3433         if (pos) {
3434                 pos += 4;
3435                 port = atoi(pos);
3436                 if (port <= 0) {
3437                         wpa_printf(MSG_ERROR, "Invalid global ctrl UDP port");
3438                         goto fail;
3439                 }
3440         }
3441
3442         dl_list_init(&interface->global_ctrl_dst);
3443         interface->global_ctrl_sock = -1;
3444         os_get_random(gcookie, COOKIE_LEN);
3445
3446 #ifdef CONFIG_CTRL_IFACE_UDP_REMOTE
3447         hints.ai_flags = AI_PASSIVE;
3448 #endif /* CONFIG_CTRL_IFACE_UDP_REMOTE */
3449
3450 #ifdef CONFIG_CTRL_IFACE_UDP_IPV6
3451         hints.ai_family = AF_INET6;
3452 #else /* CONFIG_CTRL_IFACE_UDP_IPV6 */
3453         hints.ai_family = AF_INET;
3454 #endif /* CONFIG_CTRL_IFACE_UDP_IPV6 */
3455         hints.ai_socktype = SOCK_DGRAM;
3456
3457 try_again:
3458         os_snprintf(p, sizeof(p), "%d", port);
3459         n = getaddrinfo(NULL, p, &hints, &res);
3460         if (n) {
3461                 wpa_printf(MSG_ERROR, "getaddrinfo(): %s", gai_strerror(n));
3462                 goto fail;
3463         }
3464
3465         saveres = res;
3466         interface->global_ctrl_sock = socket(res->ai_family, res->ai_socktype,
3467                                              res->ai_protocol);
3468         if (interface->global_ctrl_sock < 0) {
3469                 wpa_printf(MSG_ERROR, "socket(PF_INET): %s", strerror(errno));
3470                 goto fail;
3471         }
3472
3473         if (bind(interface->global_ctrl_sock, res->ai_addr, res->ai_addrlen) <
3474             0) {
3475                 port++;
3476                 if ((port - HOSTAPD_GLOBAL_CTRL_IFACE_PORT) <
3477                     HOSTAPD_GLOBAL_CTRL_IFACE_PORT_LIMIT && !pos)
3478                         goto try_again;
3479                 wpa_printf(MSG_ERROR, "bind(AF_INET): %s", strerror(errno));
3480                 goto fail;
3481         }
3482
3483         freeaddrinfo(saveres);
3484
3485         wpa_printf(MSG_DEBUG, "global ctrl_iface_init UDP port: %d", port);
3486
3487         if (eloop_register_read_sock(interface->global_ctrl_sock,
3488                                      hostapd_global_ctrl_iface_receive,
3489                                      interface, NULL) < 0) {
3490                 hostapd_global_ctrl_iface_deinit(interface);
3491                 return -1;
3492         }
3493
3494         return 0;
3495
3496 fail:
3497         if (interface->global_ctrl_sock >= 0)
3498                 close(interface->global_ctrl_sock);
3499         return -1;
3500 #else /* CONFIG_CTRL_IFACE_UDP */
3501         struct sockaddr_un addr;
3502         int s = -1;
3503         char *fname = NULL;
3504
3505         if (interface->global_iface_path == NULL) {
3506                 wpa_printf(MSG_DEBUG, "ctrl_iface not configured!");
3507                 return 0;
3508         }
3509
3510         if (mkdir(interface->global_iface_path, S_IRWXU | S_IRWXG) < 0) {
3511                 if (errno == EEXIST) {
3512                         wpa_printf(MSG_DEBUG, "Using existing control "
3513                                    "interface directory.");
3514                 } else {
3515                         wpa_printf(MSG_ERROR, "mkdir[ctrl_interface]: %s",
3516                                    strerror(errno));
3517                         goto fail;
3518                 }
3519         } else if (interface->ctrl_iface_group &&
3520                    chown(interface->global_iface_path, -1,
3521                          interface->ctrl_iface_group) < 0) {
3522                 wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s",
3523                            strerror(errno));
3524                 goto fail;
3525         }
3526
3527         if (os_strlen(interface->global_iface_path) + 1 +
3528             os_strlen(interface->global_iface_name) >= sizeof(addr.sun_path))
3529                 goto fail;
3530
3531         s = socket(PF_UNIX, SOCK_DGRAM, 0);
3532         if (s < 0) {
3533                 wpa_printf(MSG_ERROR, "socket(PF_UNIX): %s", strerror(errno));
3534                 goto fail;
3535         }
3536
3537         os_memset(&addr, 0, sizeof(addr));
3538 #ifdef __FreeBSD__
3539         addr.sun_len = sizeof(addr);
3540 #endif /* __FreeBSD__ */
3541         addr.sun_family = AF_UNIX;
3542         fname = hostapd_global_ctrl_iface_path(interface);
3543         if (fname == NULL)
3544                 goto fail;
3545         os_strlcpy(addr.sun_path, fname, sizeof(addr.sun_path));
3546         if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
3547                 wpa_printf(MSG_DEBUG, "ctrl_iface bind(PF_UNIX) failed: %s",
3548                            strerror(errno));
3549                 if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
3550                         wpa_printf(MSG_DEBUG, "ctrl_iface exists, but does not"
3551                                    " allow connections - assuming it was left"
3552                                    "over from forced program termination");
3553                         if (unlink(fname) < 0) {
3554                                 wpa_printf(MSG_ERROR,
3555                                            "Could not unlink existing ctrl_iface socket '%s': %s",
3556                                            fname, strerror(errno));
3557                                 goto fail;
3558                         }
3559                         if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) <
3560                             0) {
3561                                 wpa_printf(MSG_ERROR, "bind(PF_UNIX): %s",
3562                                            strerror(errno));
3563                                 goto fail;
3564                         }
3565                         wpa_printf(MSG_DEBUG, "Successfully replaced leftover "
3566                                    "ctrl_iface socket '%s'", fname);
3567                 } else {
3568                         wpa_printf(MSG_INFO, "ctrl_iface exists and seems to "
3569                                    "be in use - cannot override it");
3570                         wpa_printf(MSG_INFO, "Delete '%s' manually if it is "
3571                                    "not used anymore", fname);
3572                         os_free(fname);
3573                         fname = NULL;
3574                         goto fail;
3575                 }
3576         }
3577
3578         if (interface->ctrl_iface_group &&
3579             chown(fname, -1, interface->ctrl_iface_group) < 0) {
3580                 wpa_printf(MSG_ERROR, "chown[ctrl_interface]: %s",
3581                            strerror(errno));
3582                 goto fail;
3583         }
3584
3585         if (chmod(fname, S_IRWXU | S_IRWXG) < 0) {
3586                 wpa_printf(MSG_ERROR, "chmod[ctrl_interface/ifname]: %s",
3587                            strerror(errno));
3588                 goto fail;
3589         }
3590         os_free(fname);
3591
3592         interface->global_ctrl_sock = s;
3593         eloop_register_read_sock(s, hostapd_global_ctrl_iface_receive,
3594                                  interface, NULL);
3595
3596         return 0;
3597
3598 fail:
3599         if (s >= 0)
3600                 close(s);
3601         if (fname) {
3602                 unlink(fname);
3603                 os_free(fname);
3604         }
3605         return -1;
3606 #endif /* CONFIG_CTRL_IFACE_UDP */
3607 }
3608
3609
3610 void hostapd_global_ctrl_iface_deinit(struct hapd_interfaces *interfaces)
3611 {
3612 #ifndef CONFIG_CTRL_IFACE_UDP
3613         char *fname = NULL;
3614 #endif /* CONFIG_CTRL_IFACE_UDP */
3615         struct wpa_ctrl_dst *dst, *prev;
3616
3617         if (interfaces->global_ctrl_sock > -1) {
3618                 eloop_unregister_read_sock(interfaces->global_ctrl_sock);
3619                 close(interfaces->global_ctrl_sock);
3620                 interfaces->global_ctrl_sock = -1;
3621 #ifndef CONFIG_CTRL_IFACE_UDP
3622                 fname = hostapd_global_ctrl_iface_path(interfaces);
3623                 if (fname) {
3624                         unlink(fname);
3625                         os_free(fname);
3626                 }
3627
3628                 if (interfaces->global_iface_path &&
3629                     rmdir(interfaces->global_iface_path) < 0) {
3630                         if (errno == ENOTEMPTY) {
3631                                 wpa_printf(MSG_DEBUG, "Control interface "
3632                                            "directory not empty - leaving it "
3633                                            "behind");
3634                         } else {
3635                                 wpa_printf(MSG_ERROR,
3636                                            "rmdir[ctrl_interface=%s]: %s",
3637                                            interfaces->global_iface_path,
3638                                            strerror(errno));
3639                         }
3640                 }
3641 #endif /* CONFIG_CTRL_IFACE_UDP */
3642         }
3643
3644         os_free(interfaces->global_iface_path);
3645         interfaces->global_iface_path = NULL;
3646
3647         dl_list_for_each_safe(dst, prev, &interfaces->global_ctrl_dst,
3648                               struct wpa_ctrl_dst, list)
3649                 os_free(dst);
3650 }
3651
3652
3653 static void hostapd_ctrl_iface_send(struct hostapd_data *hapd, int level,
3654                                     enum wpa_msg_type type,
3655                                     const char *buf, size_t len)
3656 {
3657         struct wpa_ctrl_dst *dst, *next;
3658         struct dl_list *ctrl_dst;
3659         struct msghdr msg;
3660         int idx;
3661         struct iovec io[2];
3662         char levelstr[10];
3663         int s;
3664
3665         if (type != WPA_MSG_ONLY_GLOBAL) {
3666                 s = hapd->ctrl_sock;
3667                 ctrl_dst = &hapd->ctrl_dst;
3668         } else {
3669                 s = hapd->iface->interfaces->global_ctrl_sock;
3670                 ctrl_dst = &hapd->iface->interfaces->global_ctrl_dst;
3671         }
3672
3673         if (s < 0 || dl_list_empty(ctrl_dst))
3674                 return;
3675
3676         os_snprintf(levelstr, sizeof(levelstr), "<%d>", level);
3677         io[0].iov_base = levelstr;
3678         io[0].iov_len = os_strlen(levelstr);
3679         io[1].iov_base = (char *) buf;
3680         io[1].iov_len = len;
3681         os_memset(&msg, 0, sizeof(msg));
3682         msg.msg_iov = io;
3683         msg.msg_iovlen = 2;
3684
3685         idx = 0;
3686         dl_list_for_each_safe(dst, next, ctrl_dst, struct wpa_ctrl_dst, list) {
3687                 if (level >= dst->debug_level) {
3688                         sockaddr_print(MSG_DEBUG, "CTRL_IFACE monitor send",
3689                                        &dst->addr, dst->addrlen);
3690                         msg.msg_name = &dst->addr;
3691                         msg.msg_namelen = dst->addrlen;
3692                         if (sendmsg(s, &msg, 0) < 0) {
3693                                 int _errno = errno;
3694                                 wpa_printf(MSG_INFO, "CTRL_IFACE monitor[%d]: "
3695                                            "%d - %s",
3696                                            idx, errno, strerror(errno));
3697                                 dst->errors++;
3698                                 if (dst->errors > 10 || _errno == ENOENT) {
3699                                         if (type != WPA_MSG_ONLY_GLOBAL)
3700                                                 hostapd_ctrl_iface_detach(
3701                                                         hapd, &dst->addr,
3702                                                         dst->addrlen);
3703                                         else
3704                                                 hostapd_global_ctrl_iface_detach(
3705                                                         hapd->iface->interfaces,
3706                                                         &dst->addr,
3707                                                         dst->addrlen);
3708                                 }
3709                         } else
3710                                 dst->errors = 0;
3711                 }
3712                 idx++;
3713         }
3714 }
3715
3716 #endif /* CONFIG_NATIVE_WINDOWS */