hostapd/ctrl_iface.c

   1 /*
   2  * hostapd / UNIX domain socket -based control interface
   3  * Copyright (c) 2004-2014, Jouni Malinen <j@w1.fi>
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "utils/includes.h"
  10
  11 #ifndef CONFIG_NATIVE_WINDOWS
  12
  13 #ifdef CONFIG_TESTING_OPTIONS
  14 #include <net/ethernet.h>
  15 #include <netinet/ip.h>
  16 #endif /* CONFIG_TESTING_OPTIONS */
  17
  18 #include <sys/un.h>
  19 #include <sys/stat.h>
  20 #include <stddef.h>
  21
  22 #include "utils/common.h"
  23 #include "utils/eloop.h"
  24 #include "common/version.h"
  25 #include "common/ieee802_11_defs.h"
  26 #include "drivers/driver.h"
  27 #include "radius/radius_client.h"
  28 #include "radius/radius_server.h"
  29 #include "l2_packet/l2_packet.h"
  30 #include "ap/hostapd.h"
  31 #include "ap/ap_config.h"
  32 #include "ap/ieee802_1x.h"
  33 #include "ap/wpa_auth.h"
  34 #include "ap/ieee802_11.h"
  35 #include "ap/sta_info.h"
  36 #include "ap/wps_hostapd.h"
  37 #include "ap/ctrl_iface_ap.h"
  38 #include "ap/ap_drv_ops.h"
  39 #include "ap/hs20.h"
  40 #include "ap/wnm_ap.h"
  41 #include "ap/wpa_auth.h"
  42 #include "wps/wps_defs.h"
  43 #include "wps/wps.h"
  44 #include "config_file.h"
  45 #include "ctrl_iface.h"
  46
  47
  48 struct wpa_ctrl_dst {
  49         struct wpa_ctrl_dst *next;
  50         struct sockaddr_un addr;
  51         socklen_t addrlen;
  52         int debug_level;
  53         int errors;
  54 };
  55
  56
  57 static void hostapd_ctrl_iface_send(struct hostapd_data *hapd, int level,
  58                                     const char *buf, size_t len);
  59
  60
  61 static int hostapd_ctrl_iface_attach(struct hostapd_data *hapd,
  62                                      struct sockaddr_un *from,
  63                                      socklen_t fromlen)
  64 {
  65         struct wpa_ctrl_dst *dst;
  66
  67         dst = os_zalloc(sizeof(*dst));
  68         if (dst == NULL)
  69                 return -1;
  70         os_memcpy(&dst->addr, from, sizeof(struct sockaddr_un));
  71         dst->addrlen = fromlen;
  72         dst->debug_level = MSG_INFO;
  73         dst->next = hapd->ctrl_dst;
  74         hapd->ctrl_dst = dst;
  75         wpa_hexdump(MSG_DEBUG, "CTRL_IFACE monitor attached",
  76                     (u8 *) from->sun_path,
  77                     fromlen - offsetof(struct sockaddr_un, sun_path));
  78         return 0;
  79 }
  80
  81
  82 static int hostapd_ctrl_iface_detach(struct hostapd_data *hapd,
  83                                      struct sockaddr_un *from,
  84                                      socklen_t fromlen)
  85 {
  86         struct wpa_ctrl_dst *dst, *prev = NULL;
  87
  88         dst = hapd->ctrl_dst;
  89         while (dst) {
  90                 if (fromlen == dst->addrlen &&
  91                     os_memcmp(from->sun_path, dst->addr.sun_path,
  92                               fromlen - offsetof(struct sockaddr_un, sun_path))
  93                     == 0) {
  94                         wpa_hexdump(MSG_DEBUG, "CTRL_IFACE monitor detached",
  95                                     (u8 *) from->sun_path,
  96                                     fromlen -
  97                                     offsetof(struct sockaddr_un, sun_path));
  98                         if (prev == NULL)
  99                                 hapd->ctrl_dst = dst->next;
 100                         else
 101                                 prev->next = dst->next;
 102                         os_free(dst);
 103                         return 0;
 104                 }
 105                 prev = dst;
 106                 dst = dst->next;
 107         }
 108         return -1;
 109 }
 110
 111
 112 static int hostapd_ctrl_iface_level(struct hostapd_data *hapd,
 113                                     struct sockaddr_un *from,
 114                                     socklen_t fromlen,
 115                                     char *level)
 116 {
 117         struct wpa_ctrl_dst *dst;
 118
 119         wpa_printf(MSG_DEBUG, "CTRL_IFACE LEVEL %s", level);
 120
 121         dst = hapd->ctrl_dst;
 122         while (dst) {
 123                 if (fromlen == dst->addrlen &&
 124                     os_memcmp(from->sun_path, dst->addr.sun_path,
 125                               fromlen - offsetof(struct sockaddr_un, sun_path))
 126                     == 0) {
 127                         wpa_hexdump(MSG_DEBUG, "CTRL_IFACE changed monitor "
 128                                     "level", (u8 *) from->sun_path, fromlen -
 129                                     offsetof(struct sockaddr_un, sun_path));
 130                         dst->debug_level = atoi(level);
 131                         return 0;
 132                 }
 133                 dst = dst->next;
 134         }
 135
 136         return -1;
 137 }
 138
 139
 140 static int hostapd_ctrl_iface_new_sta(struct hostapd_data *hapd,
 141                                       const char *txtaddr)
 142 {
 143         u8 addr[ETH_ALEN];
 144         struct sta_info *sta;
 145
 146         wpa_printf(MSG_DEBUG, "CTRL_IFACE NEW_STA %s", txtaddr);
 147
 148         if (hwaddr_aton(txtaddr, addr))
 149                 return -1;
 150
 151         sta = ap_get_sta(hapd, addr);
 152         if (sta)
 153                 return 0;
 154
 155         wpa_printf(MSG_DEBUG, "Add new STA " MACSTR " based on ctrl_iface "
 156                    "notification", MAC2STR(addr));
 157         sta = ap_sta_add(hapd, addr);
 158         if (sta == NULL)
 159                 return -1;
 160
 161         hostapd_new_assoc_sta(hapd, sta, 0);
 162         return 0;
 163 }
 164
 165
 166 #ifdef CONFIG_IEEE80211W
 167 #ifdef NEED_AP_MLME
 168 static int hostapd_ctrl_iface_sa_query(struct hostapd_data *hapd,
 169                                        const char *txtaddr)
 170 {
 171         u8 addr[ETH_ALEN];
 172         u8 trans_id[WLAN_SA_QUERY_TR_ID_LEN];
 173
 174         wpa_printf(MSG_DEBUG, "CTRL_IFACE SA_QUERY %s", txtaddr);
 175
 176         if (hwaddr_aton(txtaddr, addr) ||
 177             os_get_random(trans_id, WLAN_SA_QUERY_TR_ID_LEN) < 0)
 178                 return -1;
 179
 180         ieee802_11_send_sa_query_req(hapd, addr, trans_id);
 181
 182         return 0;
 183 }
 184 #endif /* NEED_AP_MLME */
 185 #endif /* CONFIG_IEEE80211W */
 186
 187
 188 #ifdef CONFIG_WPS
 189 static int hostapd_ctrl_iface_wps_pin(struct hostapd_data *hapd, char *txt)
 190 {
 191         char *pin = os_strchr(txt, ' ');
 192         char *timeout_txt;
 193         int timeout;
 194         u8 addr_buf[ETH_ALEN], *addr = NULL;
 195         char *pos;
 196
 197         if (pin == NULL)
 198                 return -1;
 199         *pin++ = '\0';
 200
 201         timeout_txt = os_strchr(pin, ' ');
 202         if (timeout_txt) {
 203                 *timeout_txt++ = '\0';
 204                 timeout = atoi(timeout_txt);
 205                 pos = os_strchr(timeout_txt, ' ');
 206                 if (pos) {
 207                         *pos++ = '\0';
 208                         if (hwaddr_aton(pos, addr_buf) == 0)
 209                                 addr = addr_buf;
 210                 }
 211         } else
 212                 timeout = 0;
 213
 214         return hostapd_wps_add_pin(hapd, addr, txt, pin, timeout);
 215 }
 216
 217
 218 static int hostapd_ctrl_iface_wps_check_pin(
 219         struct hostapd_data *hapd, char *cmd, char *buf, size_t buflen)
 220 {
 221         char pin[9];
 222         size_t len;
 223         char *pos;
 224         int ret;
 225
 226         wpa_hexdump_ascii_key(MSG_DEBUG, "WPS_CHECK_PIN",
 227                               (u8 *) cmd, os_strlen(cmd));
 228         for (pos = cmd, len = 0; *pos != '\0'; pos++) {
 229                 if (*pos < '0' || *pos > '9')
 230                         continue;
 231                 pin[len++] = *pos;
 232                 if (len == 9) {
 233                         wpa_printf(MSG_DEBUG, "WPS: Too long PIN");
 234                         return -1;
 235                 }
 236         }
 237         if (len != 4 && len != 8) {
 238                 wpa_printf(MSG_DEBUG, "WPS: Invalid PIN length %d", (int) len);
 239                 return -1;
 240         }
 241         pin[len] = '\0';
 242
 243         if (len == 8) {
 244                 unsigned int pin_val;
 245                 pin_val = atoi(pin);
 246                 if (!wps_pin_valid(pin_val)) {
 247                         wpa_printf(MSG_DEBUG, "WPS: Invalid checksum digit");
 248                         ret = os_snprintf(buf, buflen, "FAIL-CHECKSUM\n");
 249                         if (ret < 0 || (size_t) ret >= buflen)
 250                                 return -1;
 251                         return ret;
 252                 }
 253         }
 254
 255         ret = os_snprintf(buf, buflen, "%s", pin);
 256         if (ret < 0 || (size_t) ret >= buflen)
 257                 return -1;
 258
 259         return ret;
 260 }
 261
 262
 263 #ifdef CONFIG_WPS_NFC
 264 static int hostapd_ctrl_iface_wps_nfc_tag_read(struct hostapd_data *hapd,
 265                                                char *pos)
 266 {
 267         size_t len;
 268         struct wpabuf *buf;
 269         int ret;
 270
 271         len = os_strlen(pos);
 272         if (len & 0x01)
 273                 return -1;
 274         len /= 2;
 275
 276         buf = wpabuf_alloc(len);
 277         if (buf == NULL)
 278                 return -1;
 279         if (hexstr2bin(pos, wpabuf_put(buf, len), len) < 0) {
 280                 wpabuf_free(buf);
 281                 return -1;
 282         }
 283
 284         ret = hostapd_wps_nfc_tag_read(hapd, buf);
 285         wpabuf_free(buf);
 286
 287         return ret;
 288 }
 289
 290
 291 static int hostapd_ctrl_iface_wps_nfc_config_token(struct hostapd_data *hapd,
 292                                                    char *cmd, char *reply,
 293                                                    size_t max_len)
 294 {
 295         int ndef;
 296         struct wpabuf *buf;
 297         int res;
 298
 299         if (os_strcmp(cmd, "WPS") == 0)
 300                 ndef = 0;
 301         else if (os_strcmp(cmd, "NDEF") == 0)
 302                 ndef = 1;
 303         else
 304                 return -1;
 305
 306         buf = hostapd_wps_nfc_config_token(hapd, ndef);
 307         if (buf == NULL)
 308                 return -1;
 309
 310         res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf),
 311                                          wpabuf_len(buf));
 312         reply[res++] = '\n';
 313         reply[res] = '\0';
 314
 315         wpabuf_free(buf);
 316
 317         return res;
 318 }
 319
 320
 321 static int hostapd_ctrl_iface_wps_nfc_token_gen(struct hostapd_data *hapd,
 322                                                 char *reply, size_t max_len,
 323                                                 int ndef)
 324 {
 325         struct wpabuf *buf;
 326         int res;
 327
 328         buf = hostapd_wps_nfc_token_gen(hapd, ndef);
 329         if (buf == NULL)
 330                 return -1;
 331
 332         res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf),
 333                                          wpabuf_len(buf));
 334         reply[res++] = '\n';
 335         reply[res] = '\0';
 336
 337         wpabuf_free(buf);
 338
 339         return res;
 340 }
 341
 342
 343 static int hostapd_ctrl_iface_wps_nfc_token(struct hostapd_data *hapd,
 344                                             char *cmd, char *reply,
 345                                             size_t max_len)
 346 {
 347         if (os_strcmp(cmd, "WPS") == 0)
 348                 return hostapd_ctrl_iface_wps_nfc_token_gen(hapd, reply,
 349                                                             max_len, 0);
 350
 351         if (os_strcmp(cmd, "NDEF") == 0)
 352                 return hostapd_ctrl_iface_wps_nfc_token_gen(hapd, reply,
 353                                                             max_len, 1);
 354
 355         if (os_strcmp(cmd, "enable") == 0)
 356                 return hostapd_wps_nfc_token_enable(hapd);
 357
 358         if (os_strcmp(cmd, "disable") == 0) {
 359                 hostapd_wps_nfc_token_disable(hapd);
 360                 return 0;
 361         }
 362
 363         return -1;
 364 }
 365
 366
 367 static int hostapd_ctrl_iface_nfc_get_handover_sel(struct hostapd_data *hapd,
 368                                                    char *cmd, char *reply,
 369                                                    size_t max_len)
 370 {
 371         struct wpabuf *buf;
 372         int res;
 373         char *pos;
 374         int ndef;
 375
 376         pos = os_strchr(cmd, ' ');
 377         if (pos == NULL)
 378                 return -1;
 379         *pos++ = '\0';
 380
 381         if (os_strcmp(cmd, "WPS") == 0)
 382                 ndef = 0;
 383         else if (os_strcmp(cmd, "NDEF") == 0)
 384                 ndef = 1;
 385         else
 386                 return -1;
 387
 388         if (os_strcmp(pos, "WPS-CR") == 0)
 389                 buf = hostapd_wps_nfc_hs_cr(hapd, ndef);
 390         else
 391                 buf = NULL;
 392         if (buf == NULL)
 393                 return -1;
 394
 395         res = wpa_snprintf_hex_uppercase(reply, max_len, wpabuf_head(buf),
 396                                          wpabuf_len(buf));
 397         reply[res++] = '\n';
 398         reply[res] = '\0';
 399
 400         wpabuf_free(buf);
 401
 402         return res;
 403 }
 404
 405
 406 static int hostapd_ctrl_iface_nfc_report_handover(struct hostapd_data *hapd,
 407                                                   char *cmd)
 408 {
 409         size_t len;
 410         struct wpabuf *req, *sel;
 411         int ret;
 412         char *pos, *role, *type, *pos2;
 413
 414         role = cmd;
 415         pos = os_strchr(role, ' ');
 416         if (pos == NULL)
 417                 return -1;
 418         *pos++ = '\0';
 419
 420         type = pos;
 421         pos = os_strchr(type, ' ');
 422         if (pos == NULL)
 423                 return -1;
 424         *pos++ = '\0';
 425
 426         pos2 = os_strchr(pos, ' ');
 427         if (pos2 == NULL)
 428                 return -1;
 429         *pos2++ = '\0';
 430
 431         len = os_strlen(pos);
 432         if (len & 0x01)
 433                 return -1;
 434         len /= 2;
 435
 436         req = wpabuf_alloc(len);
 437         if (req == NULL)
 438                 return -1;
 439         if (hexstr2bin(pos, wpabuf_put(req, len), len) < 0) {
 440                 wpabuf_free(req);
 441                 return -1;
 442         }
 443
 444         len = os_strlen(pos2);
 445         if (len & 0x01) {
 446                 wpabuf_free(req);
 447                 return -1;
 448         }
 449         len /= 2;
 450
 451         sel = wpabuf_alloc(len);
 452         if (sel == NULL) {
 453                 wpabuf_free(req);
 454                 return -1;
 455         }
 456         if (hexstr2bin(pos2, wpabuf_put(sel, len), len) < 0) {
 457                 wpabuf_free(req);
 458                 wpabuf_free(sel);
 459                 return -1;
 460         }
 461
 462         if (os_strcmp(role, "RESP") == 0 && os_strcmp(type, "WPS") == 0) {
 463                 ret = hostapd_wps_nfc_report_handover(hapd, req, sel);
 464         } else {
 465                 wpa_printf(MSG_DEBUG, "NFC: Unsupported connection handover "
 466                            "reported: role=%s type=%s", role, type);
 467                 ret = -1;
 468         }
 469         wpabuf_free(req);
 470         wpabuf_free(sel);
 471
 472         return ret;
 473 }
 474
 475 #endif /* CONFIG_WPS_NFC */
 476
 477
 478 static int hostapd_ctrl_iface_wps_ap_pin(struct hostapd_data *hapd, char *txt,
 479                                          char *buf, size_t buflen)
 480 {
 481         int timeout = 300;
 482         char *pos;
 483         const char *pin_txt;
 484
 485         pos = os_strchr(txt, ' ');
 486         if (pos)
 487                 *pos++ = '\0';
 488
 489         if (os_strcmp(txt, "disable") == 0) {
 490                 hostapd_wps_ap_pin_disable(hapd);
 491                 return os_snprintf(buf, buflen, "OK\n");
 492         }
 493
 494         if (os_strcmp(txt, "random") == 0) {
 495                 if (pos)
 496                         timeout = atoi(pos);
 497                 pin_txt = hostapd_wps_ap_pin_random(hapd, timeout);
 498                 if (pin_txt == NULL)
 499                         return -1;
 500                 return os_snprintf(buf, buflen, "%s", pin_txt);
 501         }
 502
 503         if (os_strcmp(txt, "get") == 0) {
 504                 pin_txt = hostapd_wps_ap_pin_get(hapd);
 505                 if (pin_txt == NULL)
 506                         return -1;
 507                 return os_snprintf(buf, buflen, "%s", pin_txt);
 508         }
 509
 510         if (os_strcmp(txt, "set") == 0) {
 511                 char *pin;
 512                 if (pos == NULL)
 513                         return -1;
 514                 pin = pos;
 515                 pos = os_strchr(pos, ' ');
 516                 if (pos) {
 517                         *pos++ = '\0';
 518                         timeout = atoi(pos);
 519                 }
 520                 if (os_strlen(pin) > buflen)
 521                         return -1;
 522                 if (hostapd_wps_ap_pin_set(hapd, pin, timeout) < 0)
 523                         return -1;
 524                 return os_snprintf(buf, buflen, "%s", pin);
 525         }
 526
 527         return -1;
 528 }
 529
 530
 531 static int hostapd_ctrl_iface_wps_config(struct hostapd_data *hapd, char *txt)
 532 {
 533         char *pos;
 534         char *ssid, *auth, *encr = NULL, *key = NULL;
 535
 536         ssid = txt;
 537         pos = os_strchr(txt, ' ');
 538         if (!pos)
 539                 return -1;
 540         *pos++ = '\0';
 541
 542         auth = pos;
 543         pos = os_strchr(pos, ' ');
 544         if (pos) {
 545                 *pos++ = '\0';
 546                 encr = pos;
 547                 pos = os_strchr(pos, ' ');
 548                 if (pos) {
 549                         *pos++ = '\0';
 550                         key = pos;
 551                 }
 552         }
 553
 554         return hostapd_wps_config_ap(hapd, ssid, auth, encr, key);
 555 }
 556
 557
 558 static const char * pbc_status_str(enum pbc_status status)
 559 {
 560         switch (status) {
 561         case WPS_PBC_STATUS_DISABLE:
 562                 return "Disabled";
 563         case WPS_PBC_STATUS_ACTIVE:
 564                 return "Active";
 565         case WPS_PBC_STATUS_TIMEOUT:
 566                 return "Timed-out";
 567         case WPS_PBC_STATUS_OVERLAP:
 568                 return "Overlap";
 569         default:
 570                 return "Unknown";
 571         }
 572 }
 573
 574
 575 static int hostapd_ctrl_iface_wps_get_status(struct hostapd_data *hapd,
 576                                              char *buf, size_t buflen)
 577 {
 578         int ret;
 579         char *pos, *end;
 580
 581         pos = buf;
 582         end = buf + buflen;
 583
 584         ret = os_snprintf(pos, end - pos, "PBC Status: %s\n",
 585                           pbc_status_str(hapd->wps_stats.pbc_status));
 586
 587         if (ret < 0 || ret >= end - pos)
 588                 return pos - buf;
 589         pos += ret;
 590
 591         ret = os_snprintf(pos, end - pos, "Last WPS result: %s\n",
 592                           (hapd->wps_stats.status == WPS_STATUS_SUCCESS ?
 593                            "Success":
 594                            (hapd->wps_stats.status == WPS_STATUS_FAILURE ?
 595                             "Failed" : "None")));
 596
 597         if (ret < 0 || ret >= end - pos)
 598                 return pos - buf;
 599         pos += ret;
 600
 601         /* If status == Failure - Add possible Reasons */
 602         if(hapd->wps_stats.status == WPS_STATUS_FAILURE &&
 603            hapd->wps_stats.failure_reason > 0) {
 604                 ret = os_snprintf(pos, end - pos,
 605                                   "Failure Reason: %s\n",
 606                                   wps_ei_str(hapd->wps_stats.failure_reason));
 607
 608                 if (ret < 0 || ret >= end - pos)
 609                         return pos - buf;
 610                 pos += ret;
 611         }
 612
 613         if (hapd->wps_stats.status) {
 614                 ret = os_snprintf(pos, end - pos, "Peer Address: " MACSTR "\n",
 615                                   MAC2STR(hapd->wps_stats.peer_addr));
 616
 617                 if (ret < 0 || ret >= end - pos)
 618                         return pos - buf;
 619                 pos += ret;
 620         }
 621
 622         return pos - buf;
 623 }
 624
 625 #endif /* CONFIG_WPS */
 626
 627 #ifdef CONFIG_HS20
 628
 629 static int hostapd_ctrl_iface_hs20_wnm_notif(struct hostapd_data *hapd,
 630                                              const char *cmd)
 631 {
 632         u8 addr[ETH_ALEN];
 633         const char *url;
 634
 635         if (hwaddr_aton(cmd, addr))
 636                 return -1;
 637         url = cmd + 17;
 638         if (*url == '\0') {
 639                 url = NULL;
 640         } else {
 641                 if (*url != ' ')
 642                         return -1;
 643                 url++;
 644                 if (*url == '\0')
 645                         url = NULL;
 646         }
 647
 648         return hs20_send_wnm_notification(hapd, addr, 1, url);
 649 }
 650
 651
 652 static int hostapd_ctrl_iface_hs20_deauth_req(struct hostapd_data *hapd,
 653                                               const char *cmd)
 654 {
 655         u8 addr[ETH_ALEN];
 656         int code, reauth_delay, ret;
 657         const char *pos;
 658         size_t url_len;
 659         struct wpabuf *req;
 660
 661         /* <STA MAC Addr> <Code(0/1)> <Re-auth-Delay(sec)> [URL] */
 662         if (hwaddr_aton(cmd, addr))
 663                 return -1;
 664
 665         pos = os_strchr(cmd, ' ');
 666         if (pos == NULL)
 667                 return -1;
 668         pos++;
 669         code = atoi(pos);
 670
 671         pos = os_strchr(pos, ' ');
 672         if (pos == NULL)
 673                 return -1;
 674         pos++;
 675         reauth_delay = atoi(pos);
 676
 677         url_len = 0;
 678         pos = os_strchr(pos, ' ');
 679         if (pos) {
 680                 pos++;
 681                 url_len = os_strlen(pos);
 682         }
 683
 684         req = wpabuf_alloc(4 + url_len);
 685         if (req == NULL)
 686                 return -1;
 687         wpabuf_put_u8(req, code);
 688         wpabuf_put_le16(req, reauth_delay);
 689         wpabuf_put_u8(req, url_len);
 690         if (pos)
 691                 wpabuf_put_data(req, pos, url_len);
 692
 693         wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification to " MACSTR
 694                    " to indicate imminent deauthentication (code=%d "
 695                    "reauth_delay=%d)", MAC2STR(addr), code, reauth_delay);
 696         ret = hs20_send_wnm_notification_deauth_req(hapd, addr, req);
 697         wpabuf_free(req);
 698         return ret;
 699 }
 700
 701 #endif /* CONFIG_HS20 */
 702
 703
 704 #ifdef CONFIG_INTERWORKING
 705
 706 static int hostapd_ctrl_iface_set_qos_map_set(struct hostapd_data *hapd,
 707                                               const char *cmd)
 708 {
 709         u8 qos_map_set[16 + 2 * 21], count = 0;
 710         const char *pos = cmd;
 711         int val, ret;
 712
 713         for (;;) {
 714                 if (count == sizeof(qos_map_set)) {
 715                         wpa_printf(MSG_ERROR, "Too many qos_map_set parameters");
 716                         return -1;
 717                 }
 718
 719                 val = atoi(pos);
 720                 if (val < 0 || val > 255) {
 721                         wpa_printf(MSG_INFO, "Invalid QoS Map Set");
 722                         return -1;
 723                 }
 724
 725                 qos_map_set[count++] = val;
 726                 pos = os_strchr(pos, ',');
 727                 if (!pos)
 728                         break;
 729                 pos++;
 730         }
 731
 732         if (count < 16 || count & 1) {
 733                 wpa_printf(MSG_INFO, "Invalid QoS Map Set");
 734                 return -1;
 735         }
 736
 737         ret = hostapd_drv_set_qos_map(hapd, qos_map_set, count);
 738         if (ret) {
 739                 wpa_printf(MSG_INFO, "Failed to set QoS Map Set");
 740                 return -1;
 741         }
 742
 743         os_memcpy(hapd->conf->qos_map_set, qos_map_set, count);
 744         hapd->conf->qos_map_set_len = count;
 745
 746         return 0;
 747 }
 748
 749
 750 static int hostapd_ctrl_iface_send_qos_map_conf(struct hostapd_data *hapd,
 751                                                 const char *cmd)
 752 {
 753         u8 addr[ETH_ALEN];
 754         struct sta_info *sta;
 755         struct wpabuf *buf;
 756         u8 *qos_map_set = hapd->conf->qos_map_set;
 757         u8 qos_map_set_len = hapd->conf->qos_map_set_len;
 758         int ret;
 759
 760         if (!qos_map_set_len) {
 761                 wpa_printf(MSG_INFO, "QoS Map Set is not set");
 762                 return -1;
 763         }
 764
 765         if (hwaddr_aton(cmd, addr))
 766                 return -1;
 767
 768         sta = ap_get_sta(hapd, addr);
 769         if (sta == NULL) {
 770                 wpa_printf(MSG_DEBUG, "Station " MACSTR " not found "
 771                            "for QoS Map Configuration message",
 772                            MAC2STR(addr));
 773                 return -1;
 774         }
 775
 776         if (!sta->qos_map_enabled) {
 777                 wpa_printf(MSG_DEBUG, "Station " MACSTR " did not indicate "
 778                            "support for QoS Map", MAC2STR(addr));
 779                 return -1;
 780         }
 781
 782         buf = wpabuf_alloc(2 + 2 + qos_map_set_len);
 783         if (buf == NULL)
 784                 return -1;
 785
 786         wpabuf_put_u8(buf, WLAN_ACTION_QOS);
 787         wpabuf_put_u8(buf, QOS_QOS_MAP_CONFIG);
 788
 789         /* QoS Map Set Element */
 790         wpabuf_put_u8(buf, WLAN_EID_QOS_MAP_SET);
 791         wpabuf_put_u8(buf, qos_map_set_len);
 792         wpabuf_put_data(buf, qos_map_set, qos_map_set_len);
 793
 794         ret = hostapd_drv_send_action(hapd, hapd->iface->freq, 0, addr,
 795                                       wpabuf_head(buf), wpabuf_len(buf));
 796         wpabuf_free(buf);
 797
 798         return ret;
 799 }
 800
 801 #endif /* CONFIG_INTERWORKING */
 802
 803
 804 #ifdef CONFIG_WNM
 805
 806 static int hostapd_ctrl_iface_disassoc_imminent(struct hostapd_data *hapd,
 807                                                 const char *cmd)
 808 {
 809         u8 addr[ETH_ALEN];
 810         int disassoc_timer;
 811         struct sta_info *sta;
 812
 813         if (hwaddr_aton(cmd, addr))
 814                 return -1;
 815         if (cmd[17] != ' ')
 816                 return -1;
 817         disassoc_timer = atoi(cmd + 17);
 818
 819         sta = ap_get_sta(hapd, addr);
 820         if (sta == NULL) {
 821                 wpa_printf(MSG_DEBUG, "Station " MACSTR
 822                            " not found for disassociation imminent message",
 823                            MAC2STR(addr));
 824                 return -1;
 825         }
 826
 827         return wnm_send_disassoc_imminent(hapd, sta, disassoc_timer);
 828 }
 829
 830
 831 static int hostapd_ctrl_iface_ess_disassoc(struct hostapd_data *hapd,
 832                                            const char *cmd)
 833 {
 834         u8 addr[ETH_ALEN];
 835         const char *url, *timerstr;
 836         int disassoc_timer;
 837         struct sta_info *sta;
 838
 839         if (hwaddr_aton(cmd, addr))
 840                 return -1;
 841
 842         sta = ap_get_sta(hapd, addr);
 843         if (sta == NULL) {
 844                 wpa_printf(MSG_DEBUG, "Station " MACSTR
 845                            " not found for ESS disassociation imminent message",
 846                            MAC2STR(addr));
 847                 return -1;
 848         }
 849
 850         timerstr = cmd + 17;
 851         if (*timerstr != ' ')
 852                 return -1;
 853         timerstr++;
 854         disassoc_timer = atoi(timerstr);
 855         if (disassoc_timer < 0 || disassoc_timer > 65535)
 856                 return -1;
 857
 858         url = os_strchr(timerstr, ' ');
 859         if (url == NULL)
 860                 return -1;
 861         url++;
 862
 863         return wnm_send_ess_disassoc_imminent(hapd, sta, url, disassoc_timer);
 864 }
 865
 866
 867 static int hostapd_ctrl_iface_bss_tm_req(struct hostapd_data *hapd,
 868                                          const char *cmd)
 869 {
 870         u8 addr[ETH_ALEN];
 871         const char *pos, *end;
 872         int disassoc_timer = 0;
 873         struct sta_info *sta;
 874         u8 req_mode = 0, valid_int = 0x01;
 875         u8 bss_term_dur[12];
 876         char *url = NULL;
 877         int ret;
 878         u8 nei_rep[1000];
 879         u8 *nei_pos = nei_rep;
 880
 881         if (hwaddr_aton(cmd, addr)) {
 882                 wpa_printf(MSG_DEBUG, "Invalid STA MAC address");
 883                 return -1;
 884         }
 885
 886         sta = ap_get_sta(hapd, addr);
 887         if (sta == NULL) {
 888                 wpa_printf(MSG_DEBUG, "Station " MACSTR
 889                            " not found for BSS TM Request message",
 890                            MAC2STR(addr));
 891                 return -1;
 892         }
 893
 894         pos = os_strstr(cmd, " disassoc_timer=");
 895         if (pos) {
 896                 pos += 16;
 897                 disassoc_timer = atoi(pos);
 898                 if (disassoc_timer < 0 || disassoc_timer > 65535) {
 899                         wpa_printf(MSG_DEBUG, "Invalid disassoc_timer");
 900                         return -1;
 901                 }
 902         }
 903
 904         pos = os_strstr(cmd, " valid_int=");
 905         if (pos) {
 906                 pos += 11;
 907                 valid_int = atoi(pos);
 908         }
 909
 910         pos = os_strstr(cmd, " bss_term=");
 911         if (pos) {
 912                 pos += 10;
 913                 req_mode |= WNM_BSS_TM_REQ_BSS_TERMINATION_INCLUDED;
 914                 /* TODO: TSF configurable/learnable */
 915                 bss_term_dur[0] = 4; /* Subelement ID */
 916                 bss_term_dur[1] = 10; /* Length */
 917                 os_memset(bss_term_dur, 2, 8);
 918                 end = os_strchr(pos, ',');
 919                 if (end == NULL) {
 920                         wpa_printf(MSG_DEBUG, "Invalid bss_term data");
 921                         return -1;
 922                 }
 923                 end++;
 924                 WPA_PUT_LE16(&bss_term_dur[10], atoi(end));
 925         }
 926
 927
 928         /*
 929          * BSS Transition Candidate List Entries - Neighbor Report elements
 930          * neighbor=<BSSID>,<BSSID Information>,<Operating Class>,
 931          * <Channel Number>,<PHY Type>[,<hexdump of Optional Subelements>]
 932          */
 933         pos = cmd;
 934         while (pos) {
 935                 u8 *nei_start;
 936                 long int val;
 937                 char *endptr, *tmp;
 938
 939                 pos = os_strstr(pos, " neighbor=");
 940                 if (!pos)
 941                         break;
 942                 if (nei_pos + 15 > nei_rep + sizeof(nei_rep)) {
 943                         wpa_printf(MSG_DEBUG,
 944                                    "Not enough room for additional neighbor");
 945                         return -1;
 946                 }
 947                 pos += 10;
 948
 949                 nei_start = nei_pos;
 950                 *nei_pos++ = WLAN_EID_NEIGHBOR_REPORT;
 951                 nei_pos++; /* length to be filled in */
 952
 953                 if (hwaddr_aton(pos, nei_pos)) {
 954                         wpa_printf(MSG_DEBUG, "Invalid BSSID");
 955                         return -1;
 956                 }
 957                 nei_pos += ETH_ALEN;
 958                 pos += 17;
 959                 if (*pos != ',') {
 960                         wpa_printf(MSG_DEBUG, "Missing BSSID Information");
 961                         return -1;
 962                 }
 963                 pos++;
 964
 965                 val = strtol(pos, &endptr, 0);
 966                 WPA_PUT_LE32(nei_pos, val);
 967                 nei_pos += 4;
 968                 if (*endptr != ',') {
 969                         wpa_printf(MSG_DEBUG, "Missing Operating Class");
 970                         return -1;
 971                 }
 972                 pos = endptr + 1;
 973
 974                 *nei_pos++ = atoi(pos); /* Operating Class */
 975                 pos = os_strchr(pos, ',');
 976                 if (pos == NULL) {
 977                         wpa_printf(MSG_DEBUG, "Missing Channel Number");
 978                         return -1;
 979                 }
 980                 pos++;
 981
 982                 *nei_pos++ = atoi(pos); /* Channel Number */
 983                 pos = os_strchr(pos, ',');
 984                 if (pos == NULL) {
 985                         wpa_printf(MSG_DEBUG, "Missing PHY Type");
 986                         return -1;
 987                 }
 988                 pos++;
 989
 990                 *nei_pos++ = atoi(pos); /* PHY Type */
 991                 end = os_strchr(pos, ' ');
 992                 tmp = os_strchr(pos, ',');
 993                 if (tmp && (!end || tmp < end)) {
 994                         /* Optional Subelements (hexdump) */
 995                         size_t len;
 996
 997                         pos = tmp + 1;
 998                         end = os_strchr(pos, ' ');
 999                         if (end)
1000                                 len = end - pos;
1001                         else
1002                                 len = os_strlen(pos);
1003                         if (nei_pos + len / 2 > nei_rep + sizeof(nei_rep)) {
1004                                 wpa_printf(MSG_DEBUG,
1005                                            "Not enough room for neighbor subelements");
1006                                 return -1;
1007                         }
1008                         if (len & 0x01 ||
1009                             hexstr2bin(pos, nei_pos, len / 2) < 0) {
1010                                 wpa_printf(MSG_DEBUG,
1011                                            "Invalid neighbor subelement info");
1012                                 return -1;
1013                         }
1014                         nei_pos += len / 2;
1015                         pos = end;
1016                 }
1017
1018                 nei_start[1] = nei_pos - nei_start - 2;
1019         }
1020
1021         pos = os_strstr(cmd, " url=");
1022         if (pos) {
1023                 size_t len;
1024                 pos += 5;
1025                 end = os_strchr(pos, ' ');
1026                 if (end)
1027                         len = end - pos;
1028                 else
1029                         len = os_strlen(pos);
1030                 url = os_malloc(len + 1);
1031                 if (url == NULL)
1032                         return -1;
1033                 os_memcpy(url, pos, len);
1034                 url[len] = '\0';
1035                 req_mode |= WNM_BSS_TM_REQ_ESS_DISASSOC_IMMINENT;
1036         }
1037
1038         if (os_strstr(cmd, " pref=1"))
1039                 req_mode |= WNM_BSS_TM_REQ_PREF_CAND_LIST_INCLUDED;
1040         if (os_strstr(cmd, " abridged=1"))
1041                 req_mode |= WNM_BSS_TM_REQ_ABRIDGED;
1042         if (os_strstr(cmd, " disassoc_imminent=1"))
1043                 req_mode |= WNM_BSS_TM_REQ_DISASSOC_IMMINENT;
1044
1045         ret = wnm_send_bss_tm_req(hapd, sta, req_mode, disassoc_timer,
1046                                   valid_int, bss_term_dur, url,
1047                                   nei_pos > nei_rep ? nei_rep : NULL,
1048                                   nei_pos - nei_rep);
1049         os_free(url);
1050         return ret;
1051 }
1052
1053 #endif /* CONFIG_WNM */
1054
1055
1056 static int hostapd_ctrl_iface_get_config(struct hostapd_data *hapd,
1057                                          char *buf, size_t buflen)
1058 {
1059         int ret;
1060         char *pos, *end;
1061
1062         pos = buf;
1063         end = buf + buflen;
1064
1065         ret = os_snprintf(pos, end - pos, "bssid=" MACSTR "\n"
1066                           "ssid=%s\n",
1067                           MAC2STR(hapd->own_addr),
1068                           wpa_ssid_txt(hapd->conf->ssid.ssid,
1069                                        hapd->conf->ssid.ssid_len));
1070         if (ret < 0 || ret >= end - pos)
1071                 return pos - buf;
1072         pos += ret;
1073
1074 #ifdef CONFIG_WPS
1075         ret = os_snprintf(pos, end - pos, "wps_state=%s\n",
1076                           hapd->conf->wps_state == 0 ? "disabled" :
1077                           (hapd->conf->wps_state == 1 ? "not configured" :
1078                            "configured"));
1079         if (ret < 0 || ret >= end - pos)
1080                 return pos - buf;
1081         pos += ret;
1082
1083         if (hapd->conf->wps_state && hapd->conf->wpa &&
1084             hapd->conf->ssid.wpa_passphrase) {
1085                 ret = os_snprintf(pos, end - pos, "passphrase=%s\n",
1086                                   hapd->conf->ssid.wpa_passphrase);
1087                 if (ret < 0 || ret >= end - pos)
1088                         return pos - buf;
1089                 pos += ret;
1090         }
1091
1092         if (hapd->conf->wps_state && hapd->conf->wpa &&
1093             hapd->conf->ssid.wpa_psk &&
1094             hapd->conf->ssid.wpa_psk->group) {
1095                 char hex[PMK_LEN * 2 + 1];
1096                 wpa_snprintf_hex(hex, sizeof(hex),
1097                                  hapd->conf->ssid.wpa_psk->psk, PMK_LEN);
1098                 ret = os_snprintf(pos, end - pos, "psk=%s\n", hex);
1099                 if (ret < 0 || ret >= end - pos)
1100                         return pos - buf;
1101                 pos += ret;
1102         }
1103 #endif /* CONFIG_WPS */
1104
1105         if (hapd->conf->wpa && hapd->conf->wpa_key_mgmt) {
1106                 ret = os_snprintf(pos, end - pos, "key_mgmt=");
1107                 if (ret < 0 || ret >= end - pos)
1108                         return pos - buf;
1109                 pos += ret;
1110
1111                 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK) {
1112                         ret = os_snprintf(pos, end - pos, "WPA-PSK ");
1113                         if (ret < 0 || ret >= end - pos)
1114                                 return pos - buf;
1115                         pos += ret;
1116                 }
1117                 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
1118                         ret = os_snprintf(pos, end - pos, "WPA-EAP ");
1119                         if (ret < 0 || ret >= end - pos)
1120                                 return pos - buf;
1121                         pos += ret;
1122                 }
1123 #ifdef CONFIG_IEEE80211R
1124                 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_PSK) {
1125                         ret = os_snprintf(pos, end - pos, "FT-PSK ");
1126                         if (ret < 0 || ret >= end - pos)
1127                                 return pos - buf;
1128                         pos += ret;
1129                 }
1130                 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) {
1131                         ret = os_snprintf(pos, end - pos, "FT-EAP ");
1132                         if (ret < 0 || ret >= end - pos)
1133                                 return pos - buf;
1134                         pos += ret;
1135                 }
1136 #ifdef CONFIG_SAE
1137                 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_FT_SAE) {
1138                         ret = os_snprintf(pos, end - pos, "FT-SAE ");
1139                         if (ret < 0 || ret >= end - pos)
1140                                 return pos - buf;
1141                         pos += ret;
1142                 }
1143 #endif /* CONFIG_SAE */
1144 #endif /* CONFIG_IEEE80211R */
1145 #ifdef CONFIG_IEEE80211W
1146                 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
1147                         ret = os_snprintf(pos, end - pos, "WPA-PSK-SHA256 ");
1148                         if (ret < 0 || ret >= end - pos)
1149                                 return pos - buf;
1150                         pos += ret;
1151                 }
1152                 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) {
1153                         ret = os_snprintf(pos, end - pos, "WPA-EAP-SHA256 ");
1154                         if (ret < 0 || ret >= end - pos)
1155                                 return pos - buf;
1156                         pos += ret;
1157                 }
1158 #endif /* CONFIG_IEEE80211W */
1159 #ifdef CONFIG_SAE
1160                 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_SAE) {
1161                         ret = os_snprintf(pos, end - pos, "SAE ");
1162                         if (ret < 0 || ret >= end - pos)
1163                                 return pos - buf;
1164                         pos += ret;
1165                 }
1166 #endif /* CONFIG_SAE */
1167                 if (hapd->conf->wpa_key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
1168                         ret = os_snprintf(pos, end - pos, "WPA-EAP-SUITE-B ");
1169                         if (ret < 0 || ret >= end - pos)
1170                                 return pos - buf;
1171                         pos += ret;
1172                 }
1173
1174                 ret = os_snprintf(pos, end - pos, "\n");
1175                 if (ret < 0 || ret >= end - pos)
1176                         return pos - buf;
1177                 pos += ret;
1178         }
1179
1180         if (hapd->conf->wpa) {
1181                 ret = os_snprintf(pos, end - pos, "group_cipher=%s\n",
1182                                   wpa_cipher_txt(hapd->conf->wpa_group));
1183                 if (ret < 0 || ret >= end - pos)
1184                         return pos - buf;
1185                 pos += ret;
1186         }
1187
1188         if ((hapd->conf->wpa & WPA_PROTO_RSN) && hapd->conf->rsn_pairwise) {
1189                 ret = os_snprintf(pos, end - pos, "rsn_pairwise_cipher=");
1190                 if (ret < 0 || ret >= end - pos)
1191                         return pos - buf;
1192                 pos += ret;
1193
1194                 ret = wpa_write_ciphers(pos, end, hapd->conf->rsn_pairwise,
1195                                         " ");
1196                 if (ret < 0)
1197                         return pos - buf;
1198                 pos += ret;
1199
1200                 ret = os_snprintf(pos, end - pos, "\n");
1201                 if (ret < 0 || ret >= end - pos)
1202                         return pos - buf;
1203                 pos += ret;
1204         }
1205
1206         if ((hapd->conf->wpa & WPA_PROTO_WPA) && hapd->conf->wpa_pairwise) {
1207                 ret = os_snprintf(pos, end - pos, "wpa_pairwise_cipher=");
1208                 if (ret < 0 || ret >= end - pos)
1209                         return pos - buf;
1210                 pos += ret;
1211
1212                 ret = wpa_write_ciphers(pos, end, hapd->conf->wpa_pairwise,
1213                                         " ");
1214                 if (ret < 0)
1215                         return pos - buf;
1216                 pos += ret;
1217
1218                 ret = os_snprintf(pos, end - pos, "\n");
1219                 if (ret < 0 || ret >= end - pos)
1220                         return pos - buf;
1221                 pos += ret;
1222         }
1223
1224         return pos - buf;
1225 }
1226
1227
1228 static int hostapd_ctrl_iface_set(struct hostapd_data *hapd, char *cmd)
1229 {
1230         char *value;
1231         int ret = 0;
1232
1233         value = os_strchr(cmd, ' ');
1234         if (value == NULL)
1235                 return -1;
1236         *value++ = '\0';
1237
1238         wpa_printf(MSG_DEBUG, "CTRL_IFACE SET '%s'='%s'", cmd, value);
1239         if (0) {
1240 #ifdef CONFIG_WPS_TESTING
1241         } else if (os_strcasecmp(cmd, "wps_version_number") == 0) {
1242                 long int val;
1243                 val = strtol(value, NULL, 0);
1244                 if (val < 0 || val > 0xff) {
1245                         ret = -1;
1246                         wpa_printf(MSG_DEBUG, "WPS: Invalid "
1247                                    "wps_version_number %ld", val);
1248                 } else {
1249                         wps_version_number = val;
1250                         wpa_printf(MSG_DEBUG, "WPS: Testing - force WPS "
1251                                    "version %u.%u",
1252                                    (wps_version_number & 0xf0) >> 4,
1253                                    wps_version_number & 0x0f);
1254                         hostapd_wps_update_ie(hapd);
1255                 }
1256         } else if (os_strcasecmp(cmd, "wps_testing_dummy_cred") == 0) {
1257                 wps_testing_dummy_cred = atoi(value);
1258                 wpa_printf(MSG_DEBUG, "WPS: Testing - dummy_cred=%d",
1259                            wps_testing_dummy_cred);
1260         } else if (os_strcasecmp(cmd, "wps_corrupt_pkhash") == 0) {
1261                 wps_corrupt_pkhash = atoi(value);
1262                 wpa_printf(MSG_DEBUG, "WPS: Testing - wps_corrupt_pkhash=%d",
1263                            wps_corrupt_pkhash);
1264 #endif /* CONFIG_WPS_TESTING */
1265 #ifdef CONFIG_INTERWORKING
1266         } else if (os_strcasecmp(cmd, "gas_frag_limit") == 0) {
1267                 int val = atoi(value);
1268                 if (val <= 0)
1269                         ret = -1;
1270                 else
1271                         hapd->gas_frag_limit = val;
1272 #endif /* CONFIG_INTERWORKING */
1273 #ifdef CONFIG_TESTING_OPTIONS
1274         } else if (os_strcasecmp(cmd, "ext_mgmt_frame_handling") == 0) {
1275                 hapd->ext_mgmt_frame_handling = atoi(value);
1276         } else if (os_strcasecmp(cmd, "ext_eapol_frame_io") == 0) {
1277                 hapd->ext_eapol_frame_io = atoi(value);
1278 #endif /* CONFIG_TESTING_OPTIONS */
1279         } else {
1280                 struct sta_info *sta;
1281                 int vlan_id;
1282
1283                 ret = hostapd_set_iface(hapd->iconf, hapd->conf, cmd, value);
1284                 if (ret)
1285                         return ret;
1286
1287                 if (os_strcasecmp(cmd, "deny_mac_file") == 0) {
1288                         for (sta = hapd->sta_list; sta; sta = sta->next) {
1289                                 if (hostapd_maclist_found(
1290                                             hapd->conf->deny_mac,
1291                                             hapd->conf->num_deny_mac, sta->addr,
1292                                             &vlan_id) &&
1293                                     (!vlan_id || vlan_id == sta->vlan_id))
1294                                         ap_sta_disconnect(
1295                                                 hapd, sta, sta->addr,
1296                                                 WLAN_REASON_UNSPECIFIED);
1297                         }
1298                 } else if (hapd->conf->macaddr_acl == DENY_UNLESS_ACCEPTED &&
1299                            os_strcasecmp(cmd, "accept_mac_file") == 0) {
1300                         for (sta = hapd->sta_list; sta; sta = sta->next) {
1301                                 if (!hostapd_maclist_found(
1302                                             hapd->conf->accept_mac,
1303                                             hapd->conf->num_accept_mac,
1304                                             sta->addr, &vlan_id) ||
1305                                     (vlan_id && vlan_id != sta->vlan_id))
1306                                         ap_sta_disconnect(
1307                                                 hapd, sta, sta->addr,
1308                                                 WLAN_REASON_UNSPECIFIED);
1309                         }
1310                 }
1311         }
1312
1313         return ret;
1314 }
1315
1316
1317 static int hostapd_ctrl_iface_get(struct hostapd_data *hapd, char *cmd,
1318                                   char *buf, size_t buflen)
1319 {
1320         int res;
1321
1322         wpa_printf(MSG_DEBUG, "CTRL_IFACE GET '%s'", cmd);
1323
1324         if (os_strcmp(cmd, "version") == 0) {
1325                 res = os_snprintf(buf, buflen, "%s", VERSION_STR);
1326                 if (res < 0 || (unsigned int) res >= buflen)
1327                         return -1;
1328                 return res;
1329         }
1330
1331         return -1;
1332 }
1333
1334
1335 static int hostapd_ctrl_iface_enable(struct hostapd_iface *iface)
1336 {
1337         if (hostapd_enable_iface(iface) < 0) {
1338                 wpa_printf(MSG_ERROR, "Enabling of interface failed");
1339                 return -1;
1340         }
1341         return 0;
1342 }
1343
1344
1345 static int hostapd_ctrl_iface_reload(struct hostapd_iface *iface)
1346 {
1347         if (hostapd_reload_iface(iface) < 0) {
1348                 wpa_printf(MSG_ERROR, "Reloading of interface failed");
1349                 return -1;
1350         }
1351         return 0;
1352 }
1353
1354
1355 static int hostapd_ctrl_iface_disable(struct hostapd_iface *iface)
1356 {
1357         if (hostapd_disable_iface(iface) < 0) {
1358                 wpa_printf(MSG_ERROR, "Disabling of interface failed");
1359                 return -1;
1360         }
1361         return 0;
1362 }
1363
1364
1365 #ifdef CONFIG_TESTING_OPTIONS
1366
1367 static int hostapd_ctrl_iface_radar(struct hostapd_data *hapd, char *cmd)
1368 {
1369         union wpa_event_data data;
1370         char *pos, *param;
1371         enum wpa_event_type event;
1372
1373         wpa_printf(MSG_DEBUG, "RADAR TEST: %s", cmd);
1374
1375         os_memset(&data, 0, sizeof(data));
1376
1377         param = os_strchr(cmd, ' ');
1378         if (param == NULL)
1379                 return -1;
1380         *param++ = '\0';
1381
1382         if (os_strcmp(cmd, "DETECTED") == 0)
1383                 event = EVENT_DFS_RADAR_DETECTED;
1384         else if (os_strcmp(cmd, "CAC-FINISHED") == 0)
1385                 event = EVENT_DFS_CAC_FINISHED;
1386         else if (os_strcmp(cmd, "CAC-ABORTED") == 0)
1387                 event = EVENT_DFS_CAC_ABORTED;
1388         else if (os_strcmp(cmd, "NOP-FINISHED") == 0)
1389                 event = EVENT_DFS_NOP_FINISHED;
1390         else {
1391                 wpa_printf(MSG_DEBUG, "Unsupported RADAR test command: %s",
1392                            cmd);
1393                 return -1;
1394         }
1395
1396         pos = os_strstr(param, "freq=");
1397         if (pos)
1398                 data.dfs_event.freq = atoi(pos + 5);
1399
1400         pos = os_strstr(param, "ht_enabled=1");
1401         if (pos)
1402                 data.dfs_event.ht_enabled = 1;
1403
1404         pos = os_strstr(param, "chan_offset=");
1405         if (pos)
1406                 data.dfs_event.chan_offset = atoi(pos + 12);
1407
1408         pos = os_strstr(param, "chan_width=");
1409         if (pos)
1410                 data.dfs_event.chan_width = atoi(pos + 11);
1411
1412         pos = os_strstr(param, "cf1=");
1413         if (pos)
1414                 data.dfs_event.cf1 = atoi(pos + 4);
1415
1416         pos = os_strstr(param, "cf2=");
1417         if (pos)
1418                 data.dfs_event.cf2 = atoi(pos + 4);
1419
1420         wpa_supplicant_event(hapd, event, &data);
1421
1422         return 0;
1423 }
1424
1425
1426 static int hostapd_ctrl_iface_mgmt_tx(struct hostapd_data *hapd, char *cmd)
1427 {
1428         size_t len;
1429         u8 *buf;
1430         int res;
1431
1432         wpa_printf(MSG_DEBUG, "External MGMT TX: %s", cmd);
1433
1434         len = os_strlen(cmd);
1435         if (len & 1)
1436                 return -1;
1437         len /= 2;
1438
1439         buf = os_malloc(len);
1440         if (buf == NULL)
1441                 return -1;
1442
1443         if (hexstr2bin(cmd, buf, len) < 0) {
1444                 os_free(buf);
1445                 return -1;
1446         }
1447
1448         res = hostapd_drv_send_mlme(hapd, buf, len, 0);
1449         os_free(buf);
1450         return res;
1451 }
1452
1453
1454 static int hostapd_ctrl_iface_eapol_rx(struct hostapd_data *hapd, char *cmd)
1455 {
1456         char *pos;
1457         u8 src[ETH_ALEN], *buf;
1458         int used;
1459         size_t len;
1460
1461         wpa_printf(MSG_DEBUG, "External EAPOL RX: %s", cmd);
1462
1463         pos = cmd;
1464         used = hwaddr_aton2(pos, src);
1465         if (used < 0)
1466                 return -1;
1467         pos += used;
1468         while (*pos == ' ')
1469                 pos++;
1470
1471         len = os_strlen(pos);
1472         if (len & 1)
1473                 return -1;
1474         len /= 2;
1475
1476         buf = os_malloc(len);
1477         if (buf == NULL)
1478                 return -1;
1479
1480         if (hexstr2bin(pos, buf, len) < 0) {
1481                 os_free(buf);
1482                 return -1;
1483         }
1484
1485         ieee802_1x_receive(hapd, src, buf, len);
1486         os_free(buf);
1487
1488         return 0;
1489 }
1490
1491
1492 static u16 ipv4_hdr_checksum(const void *buf, size_t len)
1493 {
1494         size_t i;
1495         u32 sum = 0;
1496         const u16 *pos = buf;
1497
1498         for (i = 0; i < len / 2; i++)
1499                 sum += *pos++;
1500
1501         while (sum >> 16)
1502                 sum = (sum & 0xffff) + (sum >> 16);
1503
1504         return sum ^ 0xffff;
1505 }
1506
1507
1508 #define HWSIM_PACKETLEN 1500
1509 #define HWSIM_IP_LEN (HWSIM_PACKETLEN - sizeof(struct ether_header))
1510
1511 void hostapd_data_test_rx(void *ctx, const u8 *src_addr, const u8 *buf,
1512                           size_t len)
1513 {
1514         struct hostapd_data *hapd = ctx;
1515         const struct ether_header *eth;
1516         const struct iphdr *ip;
1517         const u8 *pos;
1518         unsigned int i;
1519
1520         if (len != HWSIM_PACKETLEN)
1521                 return;
1522
1523         eth = (const struct ether_header *) buf;
1524         ip = (const struct iphdr *) (eth + 1);
1525         pos = (const u8 *) (ip + 1);
1526
1527         if (ip->ihl != 5 || ip->version != 4 ||
1528             ntohs(ip->tot_len) != HWSIM_IP_LEN)
1529                 return;
1530
1531         for (i = 0; i < HWSIM_IP_LEN - sizeof(*ip); i++) {
1532                 if (*pos != (u8) i)
1533                         return;
1534                 pos++;
1535         }
1536
1537         wpa_msg(hapd->msg_ctx, MSG_INFO, "DATA-TEST-RX " MACSTR " " MACSTR,
1538                 MAC2STR(eth->ether_dhost), MAC2STR(eth->ether_shost));
1539 }
1540
1541
1542 static int hostapd_ctrl_iface_data_test_config(struct hostapd_data *hapd,
1543                                                char *cmd)
1544 {
1545         int enabled = atoi(cmd);
1546
1547         if (!enabled) {
1548                 if (hapd->l2_test) {
1549                         l2_packet_deinit(hapd->l2_test);
1550                         hapd->l2_test = NULL;
1551                         wpa_dbg(hapd->msg_ctx, MSG_DEBUG,
1552                                 "test data: Disabled");
1553                 }
1554                 return 0;
1555         }
1556
1557         if (hapd->l2_test)
1558                 return 0;
1559
1560         hapd->l2_test = l2_packet_init(hapd->conf->iface, hapd->own_addr,
1561                                         ETHERTYPE_IP, hostapd_data_test_rx,
1562                                         hapd, 1);
1563         if (hapd->l2_test == NULL)
1564                 return -1;
1565
1566         wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: Enabled");
1567
1568         return 0;
1569 }
1570
1571
1572 static int hostapd_ctrl_iface_data_test_tx(struct hostapd_data *hapd, char *cmd)
1573 {
1574         u8 dst[ETH_ALEN], src[ETH_ALEN];
1575         char *pos;
1576         int used;
1577         long int val;
1578         u8 tos;
1579         u8 buf[HWSIM_PACKETLEN];
1580         struct ether_header *eth;
1581         struct iphdr *ip;
1582         u8 *dpos;
1583         unsigned int i;
1584
1585         if (hapd->l2_test == NULL)
1586                 return -1;
1587
1588         /* format: <dst> <src> <tos> */
1589
1590         pos = cmd;
1591         used = hwaddr_aton2(pos, dst);
1592         if (used < 0)
1593                 return -1;
1594         pos += used;
1595         while (*pos == ' ')
1596                 pos++;
1597         used = hwaddr_aton2(pos, src);
1598         if (used < 0)
1599                 return -1;
1600         pos += used;
1601
1602         val = strtol(pos, NULL, 0);
1603         if (val < 0 || val > 0xff)
1604                 return -1;
1605         tos = val;
1606
1607         eth = (struct ether_header *) buf;
1608         os_memcpy(eth->ether_dhost, dst, ETH_ALEN);
1609         os_memcpy(eth->ether_shost, src, ETH_ALEN);
1610         eth->ether_type = htons(ETHERTYPE_IP);
1611         ip = (struct iphdr *) (eth + 1);
1612         os_memset(ip, 0, sizeof(*ip));
1613         ip->ihl = 5;
1614         ip->version = 4;
1615         ip->ttl = 64;
1616         ip->tos = tos;
1617         ip->tot_len = htons(HWSIM_IP_LEN);
1618         ip->protocol = 1;
1619         ip->saddr = htonl(192 << 24 | 168 << 16 | 1 << 8 | 1);
1620         ip->daddr = htonl(192 << 24 | 168 << 16 | 1 << 8 | 2);
1621         ip->check = ipv4_hdr_checksum(ip, sizeof(*ip));
1622         dpos = (u8 *) (ip + 1);
1623         for (i = 0; i < HWSIM_IP_LEN - sizeof(*ip); i++)
1624                 *dpos++ = i;
1625
1626         if (l2_packet_send(hapd->l2_test, dst, ETHERTYPE_IP, buf,
1627                            HWSIM_PACKETLEN) < 0)
1628                 return -1;
1629
1630         wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "test data: TX dst=" MACSTR
1631                 " src=" MACSTR " tos=0x%x", MAC2STR(dst), MAC2STR(src), tos);
1632
1633         return 0;
1634 }
1635
1636 #endif /* CONFIG_TESTING_OPTIONS */
1637
1638
1639 static int hostapd_ctrl_iface_chan_switch(struct hostapd_iface *iface,
1640                                           char *pos)
1641 {
1642 #ifdef NEED_AP_MLME
1643         struct csa_settings settings;
1644         int ret;
1645         unsigned int i;
1646
1647         ret = hostapd_parse_csa_settings(pos, &settings);
1648         if (ret)
1649                 return ret;
1650
1651         for (i = 0; i < iface->num_bss; i++) {
1652                 ret = hostapd_switch_channel(iface->bss[i], &settings);
1653                 if (ret) {
1654                         /* FIX: What do we do if CSA fails in the middle of
1655                          * submitting multi-BSS CSA requests? */
1656                         return ret;
1657                 }
1658         }
1659
1660         return 0;
1661 #else /* NEED_AP_MLME */
1662         return -1;
1663 #endif /* NEED_AP_MLME */
1664 }
1665
1666
1667 static int hostapd_ctrl_iface_mib(struct hostapd_data *hapd, char *reply,
1668                                   int reply_size, const char *param)
1669 {
1670 #ifdef RADIUS_SERVER
1671         if (os_strcmp(param, "radius_server") == 0) {
1672                 return radius_server_get_mib(hapd->radius_srv, reply,
1673                                              reply_size);
1674         }
1675 #endif /* RADIUS_SERVER */
1676         return -1;
1677 }
1678
1679
1680 static int hostapd_ctrl_iface_vendor(struct hostapd_data *hapd, char *cmd,
1681                                      char *buf, size_t buflen)
1682 {
1683         int ret;
1684         char *pos;
1685         u8 *data = NULL;
1686         unsigned int vendor_id, subcmd;
1687         struct wpabuf *reply;
1688         size_t data_len = 0;
1689
1690         /* cmd: <vendor id> <subcommand id> [<hex formatted data>] */
1691         vendor_id = strtoul(cmd, &pos, 16);
1692         if (!isblank(*pos))
1693                 return -EINVAL;
1694
1695         subcmd = strtoul(pos, &pos, 10);
1696
1697         if (*pos != '\0') {
1698                 if (!isblank(*pos++))
1699                         return -EINVAL;
1700                 data_len = os_strlen(pos);
1701         }
1702
1703         if (data_len) {
1704                 data_len /= 2;
1705                 data = os_malloc(data_len);
1706                 if (!data)
1707                         return -ENOBUFS;
1708
1709                 if (hexstr2bin(pos, data, data_len)) {
1710                         wpa_printf(MSG_DEBUG,
1711                                    "Vendor command: wrong parameter format");
1712                         os_free(data);
1713                         return -EINVAL;
1714                 }
1715         }
1716
1717         reply = wpabuf_alloc((buflen - 1) / 2);
1718         if (!reply) {
1719                 os_free(data);
1720                 return -ENOBUFS;
1721         }
1722
1723         ret = hostapd_drv_vendor_cmd(hapd, vendor_id, subcmd, data, data_len,
1724                                      reply);
1725
1726         if (ret == 0)
1727                 ret = wpa_snprintf_hex(buf, buflen, wpabuf_head_u8(reply),
1728                                        wpabuf_len(reply));
1729
1730         wpabuf_free(reply);
1731         os_free(data);
1732
1733         return ret;
1734 }
1735
1736
1737 static void hostapd_ctrl_iface_receive(int sock, void *eloop_ctx,
1738                                        void *sock_ctx)
1739 {
1740         struct hostapd_data *hapd = eloop_ctx;
1741         char buf[4096];
1742         int res;
1743         struct sockaddr_un from;
1744         socklen_t fromlen = sizeof(from);
1745         char *reply;
1746         const int reply_size = 4096;
1747         int reply_len;
1748         int level = MSG_DEBUG;
1749
1750         res = recvfrom(sock, buf, sizeof(buf) - 1, 0,
1751                        (struct sockaddr *) &from, &fromlen);
1752         if (res < 0) {
1753                 perror("recvfrom(ctrl_iface)");
1754                 return;
1755         }
1756         buf[res] = '\0';
1757         if (os_strcmp(buf, "PING") == 0)
1758                 level = MSG_EXCESSIVE;
1759         wpa_hexdump_ascii(level, "RX ctrl_iface", (u8 *) buf, res);
1760
1761         reply = os_malloc(reply_size);
1762         if (reply == NULL) {
1763                 if (sendto(sock, "FAIL\n", 5, 0, (struct sockaddr *) &from,
1764                            fromlen) < 0) {
1765                         wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
1766                                    strerror(errno));
1767                 }
1768                 return;
1769         }
1770
1771         os_memcpy(reply, "OK\n", 3);
1772         reply_len = 3;
1773
1774         if (os_strcmp(buf, "PING") == 0) {
1775                 os_memcpy(reply, "PONG\n", 5);
1776                 reply_len = 5;
1777         } else if (os_strncmp(buf, "RELOG", 5) == 0) {
1778                 if (wpa_debug_reopen_file() < 0)
1779                         reply_len = -1;
1780         } else if (os_strcmp(buf, "STATUS") == 0) {
1781                 reply_len = hostapd_ctrl_iface_status(hapd, reply,
1782                                                       reply_size);
1783         } else if (os_strcmp(buf, "STATUS-DRIVER") == 0) {
1784                 reply_len = hostapd_drv_status(hapd, reply, reply_size);
1785         } else if (os_strcmp(buf, "MIB") == 0) {
1786                 reply_len = ieee802_11_get_mib(hapd, reply, reply_size);
1787                 if (reply_len >= 0) {
1788                         res = wpa_get_mib(hapd->wpa_auth, reply + reply_len,
1789                                           reply_size - reply_len);
1790                         if (res < 0)
1791                                 reply_len = -1;
1792                         else
1793                                 reply_len += res;
1794                 }
1795                 if (reply_len >= 0) {
1796                         res = ieee802_1x_get_mib(hapd, reply + reply_len,
1797                                                  reply_size - reply_len);
1798                         if (res < 0)
1799                                 reply_len = -1;
1800                         else
1801                                 reply_len += res;
1802                 }
1803 #ifndef CONFIG_NO_RADIUS
1804                 if (reply_len >= 0) {
1805                         res = radius_client_get_mib(hapd->radius,
1806                                                     reply + reply_len,
1807                                                     reply_size - reply_len);
1808                         if (res < 0)
1809                                 reply_len = -1;
1810                         else
1811                                 reply_len += res;
1812                 }
1813 #endif /* CONFIG_NO_RADIUS */
1814         } else if (os_strncmp(buf, "MIB ", 4) == 0) {
1815                 reply_len = hostapd_ctrl_iface_mib(hapd, reply, reply_size,
1816                                                    buf + 4);
1817         } else if (os_strcmp(buf, "STA-FIRST") == 0) {
1818                 reply_len = hostapd_ctrl_iface_sta_first(hapd, reply,
1819                                                          reply_size);
1820         } else if (os_strncmp(buf, "STA ", 4) == 0) {
1821                 reply_len = hostapd_ctrl_iface_sta(hapd, buf + 4, reply,
1822                                                    reply_size);
1823         } else if (os_strncmp(buf, "STA-NEXT ", 9) == 0) {
1824                 reply_len = hostapd_ctrl_iface_sta_next(hapd, buf + 9, reply,
1825                                                         reply_size);
1826         } else if (os_strcmp(buf, "ATTACH") == 0) {
1827                 if (hostapd_ctrl_iface_attach(hapd, &from, fromlen))
1828                         reply_len = -1;
1829         } else if (os_strcmp(buf, "DETACH") == 0) {
1830                 if (hostapd_ctrl_iface_detach(hapd, &from, fromlen))
1831                         reply_len = -1;
1832         } else if (os_strncmp(buf, "LEVEL ", 6) == 0) {
1833                 if (hostapd_ctrl_iface_level(hapd, &from, fromlen,
1834                                                     buf + 6))
1835                         reply_len = -1;
1836         } else if (os_strncmp(buf, "NEW_STA ", 8) == 0) {
1837                 if (hostapd_ctrl_iface_new_sta(hapd, buf + 8))
1838                         reply_len = -1;
1839         } else if (os_strncmp(buf, "DEAUTHENTICATE ", 15) == 0) {
1840                 if (hostapd_ctrl_iface_deauthenticate(hapd, buf + 15))
1841                         reply_len = -1;
1842         } else if (os_strncmp(buf, "DISASSOCIATE ", 13) == 0) {
1843                 if (hostapd_ctrl_iface_disassociate(hapd, buf + 13))
1844                         reply_len = -1;
1845 #ifdef CONFIG_IEEE80211W
1846 #ifdef NEED_AP_MLME
1847         } else if (os_strncmp(buf, "SA_QUERY ", 9) == 0) {
1848                 if (hostapd_ctrl_iface_sa_query(hapd, buf + 9))
1849                         reply_len = -1;
1850 #endif /* NEED_AP_MLME */
1851 #endif /* CONFIG_IEEE80211W */
1852 #ifdef CONFIG_WPS
1853         } else if (os_strncmp(buf, "WPS_PIN ", 8) == 0) {
1854                 if (hostapd_ctrl_iface_wps_pin(hapd, buf + 8))
1855                         reply_len = -1;
1856         } else if (os_strncmp(buf, "WPS_CHECK_PIN ", 14) == 0) {
1857                 reply_len = hostapd_ctrl_iface_wps_check_pin(
1858                         hapd, buf + 14, reply, reply_size);
1859         } else if (os_strcmp(buf, "WPS_PBC") == 0) {
1860                 if (hostapd_wps_button_pushed(hapd, NULL))
1861                         reply_len = -1;
1862         } else if (os_strcmp(buf, "WPS_CANCEL") == 0) {
1863                 if (hostapd_wps_cancel(hapd))
1864                         reply_len = -1;
1865         } else if (os_strncmp(buf, "WPS_AP_PIN ", 11) == 0) {
1866                 reply_len = hostapd_ctrl_iface_wps_ap_pin(hapd, buf + 11,
1867                                                           reply, reply_size);
1868         } else if (os_strncmp(buf, "WPS_CONFIG ", 11) == 0) {
1869                 if (hostapd_ctrl_iface_wps_config(hapd, buf + 11) < 0)
1870                         reply_len = -1;
1871         } else if (os_strncmp(buf, "WPS_GET_STATUS", 13) == 0) {
1872                 reply_len = hostapd_ctrl_iface_wps_get_status(hapd, reply,
1873                                                               reply_size);
1874 #ifdef CONFIG_WPS_NFC
1875         } else if (os_strncmp(buf, "WPS_NFC_TAG_READ ", 17) == 0) {
1876                 if (hostapd_ctrl_iface_wps_nfc_tag_read(hapd, buf + 17))
1877                         reply_len = -1;
1878         } else if (os_strncmp(buf, "WPS_NFC_CONFIG_TOKEN ", 21) == 0) {
1879                 reply_len = hostapd_ctrl_iface_wps_nfc_config_token(
1880                         hapd, buf + 21, reply, reply_size);
1881         } else if (os_strncmp(buf, "WPS_NFC_TOKEN ", 14) == 0) {
1882                 reply_len = hostapd_ctrl_iface_wps_nfc_token(
1883                         hapd, buf + 14, reply, reply_size);
1884         } else if (os_strncmp(buf, "NFC_GET_HANDOVER_SEL ", 21) == 0) {
1885                 reply_len = hostapd_ctrl_iface_nfc_get_handover_sel(
1886                         hapd, buf + 21, reply, reply_size);
1887         } else if (os_strncmp(buf, "NFC_REPORT_HANDOVER ", 20) == 0) {
1888                 if (hostapd_ctrl_iface_nfc_report_handover(hapd, buf + 20))
1889                         reply_len = -1;
1890 #endif /* CONFIG_WPS_NFC */
1891 #endif /* CONFIG_WPS */
1892 #ifdef CONFIG_INTERWORKING
1893         } else if (os_strncmp(buf, "SET_QOS_MAP_SET ", 16) == 0) {
1894                 if (hostapd_ctrl_iface_set_qos_map_set(hapd, buf + 16))
1895                         reply_len = -1;
1896         } else if (os_strncmp(buf, "SEND_QOS_MAP_CONF ", 18) == 0) {
1897                 if (hostapd_ctrl_iface_send_qos_map_conf(hapd, buf + 18))
1898                         reply_len = -1;
1899 #endif /* CONFIG_INTERWORKING */
1900 #ifdef CONFIG_HS20
1901         } else if (os_strncmp(buf, "HS20_WNM_NOTIF ", 15) == 0) {
1902                 if (hostapd_ctrl_iface_hs20_wnm_notif(hapd, buf + 15))
1903                         reply_len = -1;
1904         } else if (os_strncmp(buf, "HS20_DEAUTH_REQ ", 16) == 0) {
1905                 if (hostapd_ctrl_iface_hs20_deauth_req(hapd, buf + 16))
1906                         reply_len = -1;
1907 #endif /* CONFIG_HS20 */
1908 #ifdef CONFIG_WNM
1909         } else if (os_strncmp(buf, "DISASSOC_IMMINENT ", 18) == 0) {
1910                 if (hostapd_ctrl_iface_disassoc_imminent(hapd, buf + 18))
1911                         reply_len = -1;
1912         } else if (os_strncmp(buf, "ESS_DISASSOC ", 13) == 0) {
1913                 if (hostapd_ctrl_iface_ess_disassoc(hapd, buf + 13))
1914                         reply_len = -1;
1915         } else if (os_strncmp(buf, "BSS_TM_REQ ", 11) == 0) {
1916                 if (hostapd_ctrl_iface_bss_tm_req(hapd, buf + 11))
1917                         reply_len = -1;
1918 #endif /* CONFIG_WNM */
1919         } else if (os_strcmp(buf, "GET_CONFIG") == 0) {
1920                 reply_len = hostapd_ctrl_iface_get_config(hapd, reply,
1921                                                           reply_size);
1922         } else if (os_strncmp(buf, "SET ", 4) == 0) {
1923                 if (hostapd_ctrl_iface_set(hapd, buf + 4))
1924                         reply_len = -1;
1925         } else if (os_strncmp(buf, "GET ", 4) == 0) {
1926                 reply_len = hostapd_ctrl_iface_get(hapd, buf + 4, reply,
1927                                                    reply_size);
1928         } else if (os_strncmp(buf, "ENABLE", 6) == 0) {
1929                 if (hostapd_ctrl_iface_enable(hapd->iface))
1930                         reply_len = -1;
1931         } else if (os_strncmp(buf, "RELOAD", 6) == 0) {
1932                 if (hostapd_ctrl_iface_reload(hapd->iface))
1933                         reply_len = -1;
1934         } else if (os_strncmp(buf, "DISABLE", 7) == 0) {
1935                 if (hostapd_ctrl_iface_disable(hapd->iface))
1936                         reply_len = -1;
1937 #ifdef CONFIG_TESTING_OPTIONS
1938         } else if (os_strncmp(buf, "RADAR ", 6) == 0) {
1939                 if (hostapd_ctrl_iface_radar(hapd, buf + 6))
1940                         reply_len = -1;
1941         } else if (os_strncmp(buf, "MGMT_TX ", 8) == 0) {
1942                 if (hostapd_ctrl_iface_mgmt_tx(hapd, buf + 8))
1943                         reply_len = -1;
1944         } else if (os_strncmp(buf, "EAPOL_RX ", 9) == 0) {
1945                 if (hostapd_ctrl_iface_eapol_rx(hapd, buf + 9) < 0)
1946                         reply_len = -1;
1947         } else if (os_strncmp(buf, "DATA_TEST_CONFIG ", 17) == 0) {
1948                 if (hostapd_ctrl_iface_data_test_config(hapd, buf + 17) < 0)
1949                         reply_len = -1;
1950         } else if (os_strncmp(buf, "DATA_TEST_TX ", 13) == 0) {
1951                 if (hostapd_ctrl_iface_data_test_tx(hapd, buf + 13) < 0)
1952                         reply_len = -1;
1953 #endif /* CONFIG_TESTING_OPTIONS */
1954         } else if (os_strncmp(buf, "CHAN_SWITCH ", 12) == 0) {
1955                 if (hostapd_ctrl_iface_chan_switch(hapd->iface, buf + 12))
1956                         reply_len = -1;
1957         } else if (os_strncmp(buf, "VENDOR ", 7) == 0) {
1958                 reply_len = hostapd_ctrl_iface_vendor(hapd, buf + 7, reply,
1959                                                       reply_size);
1960
1961         } else {
1962                 os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
1963                 reply_len = 16;
1964         }
1965
1966         if (reply_len < 0) {
1967                 os_memcpy(reply, "FAIL\n", 5);
1968                 reply_len = 5;
1969         }
1970         if (sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from,
1971                    fromlen) < 0) {
1972                 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
1973                            strerror(errno));
1974         }
1975         os_free(reply);
1976 }
1977
1978
1979 static char * hostapd_ctrl_iface_path(struct hostapd_data *hapd)
1980 {
1981         char *buf;
1982         size_t len;
1983
1984         if (hapd->conf->ctrl_interface == NULL)
1985                 return NULL;
1986
1987         len = os_strlen(hapd->conf->ctrl_interface) +
1988                 os_strlen(hapd->conf->iface) + 2;
1989         buf = os_malloc(len);
1990         if (buf == NULL)
1991                 return NULL;
1992
1993         os_snprintf(buf, len, "%s/%s",
1994                     hapd->conf->ctrl_interface, hapd->conf->iface);
1995         buf[len - 1] = '\0';
1996         return buf;
1997 }
1998
1999
2000 static void hostapd_ctrl_iface_msg_cb(void *ctx, int level, int global,
2001                                       const char *txt, size_t len)
2002 {
2003         struct hostapd_data *hapd = ctx;
2004         if (hapd == NULL)
2005                 return;
2006         hostapd_ctrl_iface_send(hapd, level, txt, len);
2007 }
2008
2009
2010 int hostapd_ctrl_iface_init(struct hostapd_data *hapd)
2011 {
2012         struct sockaddr_un addr;
2013         int s = -1;
2014         char *fname = NULL;
2015
2016         if (hapd->ctrl_sock > -1) {
2017                 wpa_printf(MSG_DEBUG, "ctrl_iface already exists!");
2018                 return 0;
2019         }
2020
2021         if (hapd->conf->ctrl_interface == NULL)
2022                 return 0;
2023
2024         if (mkdir(hapd->conf->ctrl_interface, S_IRWXU | S_IRWXG) < 0) {
2025                 if (errno == EEXIST) {
2026                         wpa_printf(MSG_DEBUG, "Using existing control "
2027                                    "interface directory.");
2028                 } else {
2029                         perror("mkdir[ctrl_interface]");
2030                         goto fail;
2031                 }
2032         }
2033
2034         if (hapd->conf->ctrl_interface_gid_set &&
2035             chown(hapd->conf->ctrl_interface, -1,
2036                   hapd->conf->ctrl_interface_gid) < 0) {
2037                 perror("chown[ctrl_interface]");
2038                 return -1;
2039         }
2040
2041         if (!hapd->conf->ctrl_interface_gid_set &&
2042             hapd->iface->interfaces->ctrl_iface_group &&
2043             chown(hapd->conf->ctrl_interface, -1,
2044                   hapd->iface->interfaces->ctrl_iface_group) < 0) {
2045                 perror("chown[ctrl_interface]");
2046                 return -1;
2047         }
2048
2049 #ifdef ANDROID
2050         /*
2051          * Android is using umask 0077 which would leave the control interface
2052          * directory without group access. This breaks things since Wi-Fi
2053          * framework assumes that this directory can be accessed by other
2054          * applications in the wifi group. Fix this by adding group access even
2055          * if umask value would prevent this.
2056          */
2057         if (chmod(hapd->conf->ctrl_interface, S_IRWXU | S_IRWXG) < 0) {
2058                 wpa_printf(MSG_ERROR, "CTRL: Could not chmod directory: %s",
2059                            strerror(errno));
2060                 /* Try to continue anyway */
2061         }
2062 #endif /* ANDROID */
2063
2064         if (os_strlen(hapd->conf->ctrl_interface) + 1 +
2065             os_strlen(hapd->conf->iface) >= sizeof(addr.sun_path))
2066                 goto fail;
2067
2068         s = socket(PF_UNIX, SOCK_DGRAM, 0);
2069         if (s < 0) {
2070                 perror("socket(PF_UNIX)");
2071                 goto fail;
2072         }
2073
2074         os_memset(&addr, 0, sizeof(addr));
2075 #ifdef __FreeBSD__
2076         addr.sun_len = sizeof(addr);
2077 #endif /* __FreeBSD__ */
2078         addr.sun_family = AF_UNIX;
2079         fname = hostapd_ctrl_iface_path(hapd);
2080         if (fname == NULL)
2081                 goto fail;
2082         os_strlcpy(addr.sun_path, fname, sizeof(addr.sun_path));
2083         if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
2084                 wpa_printf(MSG_DEBUG, "ctrl_iface bind(PF_UNIX) failed: %s",
2085                            strerror(errno));
2086                 if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
2087                         wpa_printf(MSG_DEBUG, "ctrl_iface exists, but does not"
2088                                    " allow connections - assuming it was left"
2089                                    "over from forced program termination");
2090                         if (unlink(fname) < 0) {
2091                                 perror("unlink[ctrl_iface]");
2092                                 wpa_printf(MSG_ERROR, "Could not unlink "
2093                                            "existing ctrl_iface socket '%s'",
2094                                            fname);
2095                                 goto fail;
2096                         }
2097                         if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) <
2098                             0) {
2099                                 perror("hostapd-ctrl-iface: bind(PF_UNIX)");
2100                                 goto fail;
2101                         }
2102                         wpa_printf(MSG_DEBUG, "Successfully replaced leftover "
2103                                    "ctrl_iface socket '%s'", fname);
2104                 } else {
2105                         wpa_printf(MSG_INFO, "ctrl_iface exists and seems to "
2106                                    "be in use - cannot override it");
2107                         wpa_printf(MSG_INFO, "Delete '%s' manually if it is "
2108                                    "not used anymore", fname);
2109                         os_free(fname);
2110                         fname = NULL;
2111                         goto fail;
2112                 }
2113         }
2114
2115         if (hapd->conf->ctrl_interface_gid_set &&
2116             chown(fname, -1, hapd->conf->ctrl_interface_gid) < 0) {
2117                 perror("chown[ctrl_interface/ifname]");
2118                 goto fail;
2119         }
2120
2121         if (!hapd->conf->ctrl_interface_gid_set &&
2122             hapd->iface->interfaces->ctrl_iface_group &&
2123             chown(fname, -1, hapd->iface->interfaces->ctrl_iface_group) < 0) {
2124                 perror("chown[ctrl_interface/ifname]");
2125                 goto fail;
2126         }
2127
2128         if (chmod(fname, S_IRWXU | S_IRWXG) < 0) {
2129                 perror("chmod[ctrl_interface/ifname]");
2130                 goto fail;
2131         }
2132         os_free(fname);
2133
2134         hapd->ctrl_sock = s;
2135         eloop_register_read_sock(s, hostapd_ctrl_iface_receive, hapd,
2136                                  NULL);
2137         hapd->msg_ctx = hapd;
2138         wpa_msg_register_cb(hostapd_ctrl_iface_msg_cb);
2139
2140         return 0;
2141
2142 fail:
2143         if (s >= 0)
2144                 close(s);
2145         if (fname) {
2146                 unlink(fname);
2147                 os_free(fname);
2148         }
2149         return -1;
2150 }
2151
2152
2153 void hostapd_ctrl_iface_deinit(struct hostapd_data *hapd)
2154 {
2155         struct wpa_ctrl_dst *dst, *prev;
2156
2157         if (hapd->ctrl_sock > -1) {
2158                 char *fname;
2159                 eloop_unregister_read_sock(hapd->ctrl_sock);
2160                 close(hapd->ctrl_sock);
2161                 hapd->ctrl_sock = -1;
2162                 fname = hostapd_ctrl_iface_path(hapd);
2163                 if (fname)
2164                         unlink(fname);
2165                 os_free(fname);
2166
2167                 if (hapd->conf->ctrl_interface &&
2168                     rmdir(hapd->conf->ctrl_interface) < 0) {
2169                         if (errno == ENOTEMPTY) {
2170                                 wpa_printf(MSG_DEBUG, "Control interface "
2171                                            "directory not empty - leaving it "
2172                                            "behind");
2173                         } else {
2174                                 wpa_printf(MSG_ERROR,
2175                                            "rmdir[ctrl_interface=%s]: %s",
2176                                            hapd->conf->ctrl_interface,
2177                                            strerror(errno));
2178                         }
2179                 }
2180         }
2181
2182         dst = hapd->ctrl_dst;
2183         while (dst) {
2184                 prev = dst;
2185                 dst = dst->next;
2186                 os_free(prev);
2187         }
2188
2189 #ifdef CONFIG_TESTING_OPTIONS
2190         l2_packet_deinit(hapd->l2_test);
2191         hapd->l2_test = NULL;
2192 #endif /* CONFIG_TESTING_OPTIONS */
2193 }
2194
2195
2196 static int hostapd_ctrl_iface_add(struct hapd_interfaces *interfaces,
2197                                   char *buf)
2198 {
2199         if (hostapd_add_iface(interfaces, buf) < 0) {
2200                 wpa_printf(MSG_ERROR, "Adding interface %s failed", buf);
2201                 return -1;
2202         }
2203         return 0;
2204 }
2205
2206
2207 static int hostapd_ctrl_iface_remove(struct hapd_interfaces *interfaces,
2208                                      char *buf)
2209 {
2210         if (hostapd_remove_iface(interfaces, buf) < 0) {
2211                 wpa_printf(MSG_ERROR, "Removing interface %s failed", buf);
2212                 return -1;
2213         }
2214         return 0;
2215 }
2216
2217
2218 static void hostapd_ctrl_iface_flush(struct hapd_interfaces *interfaces)
2219 {
2220 #ifdef CONFIG_WPS_TESTING
2221         wps_version_number = 0x20;
2222         wps_testing_dummy_cred = 0;
2223         wps_corrupt_pkhash = 0;
2224 #endif /* CONFIG_WPS_TESTING */
2225 }
2226
2227
2228 static void hostapd_global_ctrl_iface_receive(int sock, void *eloop_ctx,
2229                                               void *sock_ctx)
2230 {
2231         void *interfaces = eloop_ctx;
2232         char buf[256];
2233         int res;
2234         struct sockaddr_un from;
2235         socklen_t fromlen = sizeof(from);
2236         char reply[24];
2237         int reply_len;
2238
2239         res = recvfrom(sock, buf, sizeof(buf) - 1, 0,
2240                        (struct sockaddr *) &from, &fromlen);
2241         if (res < 0) {
2242                 perror("recvfrom(ctrl_iface)");
2243                 return;
2244         }
2245         buf[res] = '\0';
2246         wpa_printf(MSG_DEBUG, "Global ctrl_iface command: %s", buf);
2247
2248         os_memcpy(reply, "OK\n", 3);
2249         reply_len = 3;
2250
2251         if (os_strcmp(buf, "PING") == 0) {
2252                 os_memcpy(reply, "PONG\n", 5);
2253                 reply_len = 5;
2254         } else if (os_strncmp(buf, "RELOG", 5) == 0) {
2255                 if (wpa_debug_reopen_file() < 0)
2256                         reply_len = -1;
2257         } else if (os_strcmp(buf, "FLUSH") == 0) {
2258                 hostapd_ctrl_iface_flush(interfaces);
2259         } else if (os_strncmp(buf, "ADD ", 4) == 0) {
2260                 if (hostapd_ctrl_iface_add(interfaces, buf + 4) < 0)
2261                         reply_len = -1;
2262         } else if (os_strncmp(buf, "REMOVE ", 7) == 0) {
2263                 if (hostapd_ctrl_iface_remove(interfaces, buf + 7) < 0)
2264                         reply_len = -1;
2265 #ifdef CONFIG_MODULE_TESTS
2266         } else if (os_strcmp(buf, "MODULE_TESTS") == 0) {
2267                 int hapd_module_tests(void);
2268                 if (hapd_module_tests() < 0)
2269                         reply_len = -1;
2270 #endif /* CONFIG_MODULE_TESTS */
2271         } else {
2272                 wpa_printf(MSG_DEBUG, "Unrecognized global ctrl_iface command "
2273                            "ignored");
2274                 reply_len = -1;
2275         }
2276
2277         if (reply_len < 0) {
2278                 os_memcpy(reply, "FAIL\n", 5);
2279                 reply_len = 5;
2280         }
2281
2282         if (sendto(sock, reply, reply_len, 0, (struct sockaddr *) &from,
2283                    fromlen) < 0) {
2284                 wpa_printf(MSG_DEBUG, "CTRL: sendto failed: %s",
2285                            strerror(errno));
2286         }
2287 }
2288
2289
2290 static char * hostapd_global_ctrl_iface_path(struct hapd_interfaces *interface)
2291 {
2292         char *buf;
2293         size_t len;
2294
2295         if (interface->global_iface_path == NULL)
2296                 return NULL;
2297
2298         len = os_strlen(interface->global_iface_path) +
2299                 os_strlen(interface->global_iface_name) + 2;
2300         buf = os_malloc(len);
2301         if (buf == NULL)
2302                 return NULL;
2303
2304         os_snprintf(buf, len, "%s/%s", interface->global_iface_path,
2305                     interface->global_iface_name);
2306         buf[len - 1] = '\0';
2307         return buf;
2308 }
2309
2310
2311 int hostapd_global_ctrl_iface_init(struct hapd_interfaces *interface)
2312 {
2313         struct sockaddr_un addr;
2314         int s = -1;
2315         char *fname = NULL;
2316
2317         if (interface->global_iface_path == NULL) {
2318                 wpa_printf(MSG_DEBUG, "ctrl_iface not configured!");
2319                 return 0;
2320         }
2321
2322         if (mkdir(interface->global_iface_path, S_IRWXU | S_IRWXG) < 0) {
2323                 if (errno == EEXIST) {
2324                         wpa_printf(MSG_DEBUG, "Using existing control "
2325                                    "interface directory.");
2326                 } else {
2327                         perror("mkdir[ctrl_interface]");
2328                         goto fail;
2329                 }
2330         } else if (interface->ctrl_iface_group &&
2331                    chown(interface->global_iface_path, -1,
2332                          interface->ctrl_iface_group) < 0) {
2333                 perror("chown[ctrl_interface]");
2334                 goto fail;
2335         }
2336
2337         if (os_strlen(interface->global_iface_path) + 1 +
2338             os_strlen(interface->global_iface_name) >= sizeof(addr.sun_path))
2339                 goto fail;
2340
2341         s = socket(PF_UNIX, SOCK_DGRAM, 0);
2342         if (s < 0) {
2343                 perror("socket(PF_UNIX)");
2344                 goto fail;
2345         }
2346
2347         os_memset(&addr, 0, sizeof(addr));
2348 #ifdef __FreeBSD__
2349         addr.sun_len = sizeof(addr);
2350 #endif /* __FreeBSD__ */
2351         addr.sun_family = AF_UNIX;
2352         fname = hostapd_global_ctrl_iface_path(interface);
2353         if (fname == NULL)
2354                 goto fail;
2355         os_strlcpy(addr.sun_path, fname, sizeof(addr.sun_path));
2356         if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
2357                 wpa_printf(MSG_DEBUG, "ctrl_iface bind(PF_UNIX) failed: %s",
2358                            strerror(errno));
2359                 if (connect(s, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
2360                         wpa_printf(MSG_DEBUG, "ctrl_iface exists, but does not"
2361                                    " allow connections - assuming it was left"
2362                                    "over from forced program termination");
2363                         if (unlink(fname) < 0) {
2364                                 perror("unlink[ctrl_iface]");
2365                                 wpa_printf(MSG_ERROR, "Could not unlink "
2366                                            "existing ctrl_iface socket '%s'",
2367                                            fname);
2368                                 goto fail;
2369                         }
2370                         if (bind(s, (struct sockaddr *) &addr, sizeof(addr)) <
2371                             0) {
2372                                 perror("bind(PF_UNIX)");
2373                                 goto fail;
2374                         }
2375                         wpa_printf(MSG_DEBUG, "Successfully replaced leftover "
2376                                    "ctrl_iface socket '%s'", fname);
2377                 } else {
2378                         wpa_printf(MSG_INFO, "ctrl_iface exists and seems to "
2379                                    "be in use - cannot override it");
2380                         wpa_printf(MSG_INFO, "Delete '%s' manually if it is "
2381                                    "not used anymore", fname);
2382                         os_free(fname);
2383                         fname = NULL;
2384                         goto fail;
2385                 }
2386         }
2387
2388         if (interface->ctrl_iface_group &&
2389             chown(fname, -1, interface->ctrl_iface_group) < 0) {
2390                 perror("chown[ctrl_interface]");
2391                 goto fail;
2392         }
2393
2394         if (chmod(fname, S_IRWXU | S_IRWXG) < 0) {
2395                 perror("chmod[ctrl_interface/ifname]");
2396                 goto fail;
2397         }
2398         os_free(fname);
2399
2400         interface->global_ctrl_sock = s;
2401         eloop_register_read_sock(s, hostapd_global_ctrl_iface_receive,
2402                                  interface, NULL);
2403
2404         return 0;
2405
2406 fail:
2407         if (s >= 0)
2408                 close(s);
2409         if (fname) {
2410                 unlink(fname);
2411                 os_free(fname);
2412         }
2413         return -1;
2414 }
2415
2416
2417 void hostapd_global_ctrl_iface_deinit(struct hapd_interfaces *interfaces)
2418 {
2419         char *fname = NULL;
2420
2421         if (interfaces->global_ctrl_sock > -1) {
2422                 eloop_unregister_read_sock(interfaces->global_ctrl_sock);
2423                 close(interfaces->global_ctrl_sock);
2424                 interfaces->global_ctrl_sock = -1;
2425                 fname = hostapd_global_ctrl_iface_path(interfaces);
2426                 if (fname) {
2427                         unlink(fname);
2428                         os_free(fname);
2429                 }
2430
2431                 if (interfaces->global_iface_path &&
2432                     rmdir(interfaces->global_iface_path) < 0) {
2433                         if (errno == ENOTEMPTY) {
2434                                 wpa_printf(MSG_DEBUG, "Control interface "
2435                                            "directory not empty - leaving it "
2436                                            "behind");
2437                         } else {
2438                                 wpa_printf(MSG_ERROR,
2439                                            "rmdir[ctrl_interface=%s]: %s",
2440                                            interfaces->global_iface_path,
2441                                            strerror(errno));
2442                         }
2443                 }
2444                 os_free(interfaces->global_iface_path);
2445                 interfaces->global_iface_path = NULL;
2446         }
2447 }
2448
2449
2450 static void hostapd_ctrl_iface_send(struct hostapd_data *hapd, int level,
2451                                     const char *buf, size_t len)
2452 {
2453         struct wpa_ctrl_dst *dst, *next;
2454         struct msghdr msg;
2455         int idx;
2456         struct iovec io[2];
2457         char levelstr[10];
2458
2459         dst = hapd->ctrl_dst;
2460         if (hapd->ctrl_sock < 0 || dst == NULL)
2461                 return;
2462
2463         os_snprintf(levelstr, sizeof(levelstr), "<%d>", level);
2464         io[0].iov_base = levelstr;
2465         io[0].iov_len = os_strlen(levelstr);
2466         io[1].iov_base = (char *) buf;
2467         io[1].iov_len = len;
2468         os_memset(&msg, 0, sizeof(msg));
2469         msg.msg_iov = io;
2470         msg.msg_iovlen = 2;
2471
2472         idx = 0;
2473         while (dst) {
2474                 next = dst->next;
2475                 if (level >= dst->debug_level) {
2476                         wpa_hexdump(MSG_DEBUG, "CTRL_IFACE monitor send",
2477                                     (u8 *) dst->addr.sun_path, dst->addrlen -
2478                                     offsetof(struct sockaddr_un, sun_path));
2479                         msg.msg_name = &dst->addr;
2480                         msg.msg_namelen = dst->addrlen;
2481                         if (sendmsg(hapd->ctrl_sock, &msg, 0) < 0) {
2482                                 int _errno = errno;
2483                                 wpa_printf(MSG_INFO, "CTRL_IFACE monitor[%d]: "
2484                                            "%d - %s",
2485                                            idx, errno, strerror(errno));
2486                                 dst->errors++;
2487                                 if (dst->errors > 10 || _errno == ENOENT) {
2488                                         hostapd_ctrl_iface_detach(
2489                                                 hapd, &dst->addr,
2490                                                 dst->addrlen);
2491                                 }
2492                         } else
2493                                 dst->errors = 0;
2494                 }
2495                 idx++;
2496                 dst = next;
2497         }
2498 }
2499
2500 #endif /* CONFIG_NATIVE_WINDOWS */