contrib/wpa_supplicant/eapol_test.c

   1 /*
   2  * WPA Supplicant - test code
   3  * Copyright (c) 2003-2006, Jouni Malinen <j@w1.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  *
  14  * IEEE 802.1X Supplicant test code (to be used in place of wpa_supplicant.c.
  15  * Not used in production version.
  16  */
  17
  18 #include "includes.h"
  19 #include <assert.h>
  20
  21 #include "common.h"
  22 #include "config.h"
  23 #include "eapol_sm.h"
  24 #include "eap.h"
  25 #include "eloop.h"
  26 #include "wpa.h"
  27 #include "eap_i.h"
  28 #include "wpa_supplicant.h"
  29 #include "wpa_supplicant_i.h"
  30 #include "radius.h"
  31 #include "radius_client.h"
  32 #include "l2_packet.h"
  33 #include "ctrl_iface.h"
  34 #include "pcsc_funcs.h"
  35
  36
  37 extern int wpa_debug_level;
  38 extern int wpa_debug_show_keys;
  39
  40 struct wpa_driver_ops *wpa_supplicant_drivers[] = { NULL };
  41
  42
  43 struct eapol_test_data {
  44         struct wpa_supplicant *wpa_s;
  45
  46         int eapol_test_num_reauths;
  47         int no_mppe_keys;
  48         int num_mppe_ok, num_mppe_mismatch;
  49
  50         u8 radius_identifier;
  51         struct radius_msg *last_recv_radius;
  52         struct in_addr own_ip_addr;
  53         struct radius_client_data *radius;
  54         struct hostapd_radius_servers *radius_conf;
  55
  56         u8 *last_eap_radius; /* last received EAP Response from Authentication
  57                               * Server */
  58         size_t last_eap_radius_len;
  59
  60         u8 authenticator_pmk[PMK_LEN];
  61         size_t authenticator_pmk_len;
  62         int radius_access_accept_received;
  63         int radius_access_reject_received;
  64         int auth_timed_out;
  65
  66         u8 *eap_identity;
  67         size_t eap_identity_len;
  68
  69         char *connect_info;
  70         u8 own_addr[ETH_ALEN];
  71 };
  72
  73 static struct eapol_test_data eapol_test;
  74
  75
  76 static void send_eap_request_identity(void *eloop_ctx, void *timeout_ctx);
  77
  78
  79 void hostapd_logger(void *ctx, const u8 *addr, unsigned int module, int level,
  80                     char *fmt, ...)
  81 {
  82         char *format;
  83         int maxlen;
  84         va_list ap;
  85
  86         maxlen = os_strlen(fmt) + 100;
  87         format = os_malloc(maxlen);
  88         if (!format)
  89                 return;
  90
  91         va_start(ap, fmt);
  92
  93
  94         if (addr)
  95                 os_snprintf(format, maxlen, "STA " MACSTR ": %s",
  96                             MAC2STR(addr), fmt);
  97         else
  98                 os_snprintf(format, maxlen, "%s", fmt);
  99
 100         vprintf(format, ap);
 101         printf("\n");
 102
 103         os_free(format);
 104
 105         va_end(ap);
 106 }
 107
 108
 109 const char * hostapd_ip_txt(const struct hostapd_ip_addr *addr, char *buf,
 110                             size_t buflen)
 111 {
 112         if (buflen == 0 || addr == NULL)
 113                 return NULL;
 114
 115         if (addr->af == AF_INET) {
 116                 os_snprintf(buf, buflen, "%s", inet_ntoa(addr->u.v4));
 117         } else {
 118                 buf[0] = '\0';
 119         }
 120 #ifdef CONFIG_IPV6
 121         if (addr->af == AF_INET6) {
 122                 if (inet_ntop(AF_INET6, &addr->u.v6, buf, buflen) == NULL)
 123                         buf[0] = '\0';
 124         }
 125 #endif /* CONFIG_IPV6 */
 126
 127         return buf;
 128 }
 129
 130
 131 int hostapd_ip_diff(struct hostapd_ip_addr *a, struct hostapd_ip_addr *b)
 132 {
 133         return 0;
 134 }
 135
 136
 137 static void ieee802_1x_encapsulate_radius(struct eapol_test_data *e,
 138                                           const u8 *eap, size_t len)
 139 {
 140         struct radius_msg *msg;
 141         char buf[128];
 142         const struct eap_hdr *hdr;
 143         const u8 *pos;
 144
 145         wpa_printf(MSG_DEBUG, "Encapsulating EAP message into a RADIUS "
 146                    "packet");
 147
 148         e->radius_identifier = radius_client_get_id(e->radius);
 149         msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST,
 150                              e->radius_identifier);
 151         if (msg == NULL) {
 152                 printf("Could not create net RADIUS packet\n");
 153                 return;
 154         }
 155
 156         radius_msg_make_authenticator(msg, (u8 *) e, sizeof(*e));
 157
 158         hdr = (const struct eap_hdr *) eap;
 159         pos = (const u8 *) (hdr + 1);
 160         if (len > sizeof(*hdr) && hdr->code == EAP_CODE_RESPONSE &&
 161             pos[0] == EAP_TYPE_IDENTITY) {
 162                 pos++;
 163                 os_free(e->eap_identity);
 164                 e->eap_identity_len = len - sizeof(*hdr) - 1;
 165                 e->eap_identity = os_malloc(e->eap_identity_len);
 166                 if (e->eap_identity) {
 167                         os_memcpy(e->eap_identity, pos, e->eap_identity_len);
 168                         wpa_hexdump(MSG_DEBUG, "Learned identity from "
 169                                     "EAP-Response-Identity",
 170                                     e->eap_identity, e->eap_identity_len);
 171                 }
 172         }
 173
 174         if (e->eap_identity &&
 175             !radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME,
 176                                  e->eap_identity, e->eap_identity_len)) {
 177                 printf("Could not add User-Name\n");
 178                 goto fail;
 179         }
 180
 181         if (!radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IP_ADDRESS,
 182                                  (u8 *) &e->own_ip_addr, 4)) {
 183                 printf("Could not add NAS-IP-Address\n");
 184                 goto fail;
 185         }
 186
 187         os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
 188                     MAC2STR(e->wpa_s->own_addr));
 189         if (!radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID,
 190                                  (u8 *) buf, os_strlen(buf))) {
 191                 printf("Could not add Calling-Station-Id\n");
 192                 goto fail;
 193         }
 194
 195         /* TODO: should probably check MTU from driver config; 2304 is max for
 196          * IEEE 802.11, but use 1400 to avoid problems with too large packets
 197          */
 198         if (!radius_msg_add_attr_int32(msg, RADIUS_ATTR_FRAMED_MTU, 1400)) {
 199                 printf("Could not add Framed-MTU\n");
 200                 goto fail;
 201         }
 202
 203         if (!radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT_TYPE,
 204                                        RADIUS_NAS_PORT_TYPE_IEEE_802_11)) {
 205                 printf("Could not add NAS-Port-Type\n");
 206                 goto fail;
 207         }
 208
 209         os_snprintf(buf, sizeof(buf), "%s", e->connect_info);
 210         if (!radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO,
 211                                  (u8 *) buf, os_strlen(buf))) {
 212                 printf("Could not add Connect-Info\n");
 213                 goto fail;
 214         }
 215
 216         if (eap && !radius_msg_add_eap(msg, eap, len)) {
 217                 printf("Could not add EAP-Message\n");
 218                 goto fail;
 219         }
 220
 221         /* State attribute must be copied if and only if this packet is
 222          * Access-Request reply to the previous Access-Challenge */
 223         if (e->last_recv_radius && e->last_recv_radius->hdr->code ==
 224             RADIUS_CODE_ACCESS_CHALLENGE) {
 225                 int res = radius_msg_copy_attr(msg, e->last_recv_radius,
 226                                                RADIUS_ATTR_STATE);
 227                 if (res < 0) {
 228                         printf("Could not copy State attribute from previous "
 229                                "Access-Challenge\n");
 230                         goto fail;
 231                 }
 232                 if (res > 0) {
 233                         wpa_printf(MSG_DEBUG, "  Copied RADIUS State "
 234                                    "Attribute");
 235                 }
 236         }
 237
 238         radius_client_send(e->radius, msg, RADIUS_AUTH, e->wpa_s->own_addr);
 239         return;
 240
 241  fail:
 242         radius_msg_free(msg);
 243         os_free(msg);
 244 }
 245
 246
 247 static int eapol_test_eapol_send(void *ctx, int type, const u8 *buf,
 248                                  size_t len)
 249 {
 250         /* struct wpa_supplicant *wpa_s = ctx; */
 251         printf("WPA: eapol_test_eapol_send(type=%d len=%lu)\n",
 252                type, (unsigned long) len);
 253         if (type == IEEE802_1X_TYPE_EAP_PACKET) {
 254                 wpa_hexdump(MSG_DEBUG, "TX EAP -> RADIUS", buf, len);
 255                 ieee802_1x_encapsulate_radius(&eapol_test, buf, len);
 256         }
 257         return 0;
 258 }
 259
 260
 261 static void eapol_test_set_config_blob(void *ctx,
 262                                        struct wpa_config_blob *blob)
 263 {
 264         struct wpa_supplicant *wpa_s = ctx;
 265         wpa_config_set_blob(wpa_s->conf, blob);
 266 }
 267
 268
 269 static const struct wpa_config_blob *
 270 eapol_test_get_config_blob(void *ctx, const char *name)
 271 {
 272         struct wpa_supplicant *wpa_s = ctx;
 273         return wpa_config_get_blob(wpa_s->conf, name);
 274 }
 275
 276
 277 static void eapol_test_eapol_done_cb(void *ctx)
 278 {
 279         printf("WPA: EAPOL processing complete\n");
 280 }
 281
 282
 283 static void eapol_sm_reauth(void *eloop_ctx, void *timeout_ctx)
 284 {
 285         struct eapol_test_data *e = eloop_ctx;
 286         printf("\n\n\n\n\neapol_test: Triggering EAP reauthentication\n\n");
 287         e->radius_access_accept_received = 0;
 288         send_eap_request_identity(e->wpa_s, NULL);
 289 }
 290
 291
 292 static int eapol_test_compare_pmk(struct eapol_test_data *e)
 293 {
 294         u8 pmk[PMK_LEN];
 295         int ret = 1;
 296
 297         if (eapol_sm_get_key(e->wpa_s->eapol, pmk, PMK_LEN) == 0) {
 298                 wpa_hexdump(MSG_DEBUG, "PMK from EAPOL", pmk, PMK_LEN);
 299                 if (os_memcmp(pmk, e->authenticator_pmk, PMK_LEN) != 0) {
 300                         printf("WARNING: PMK mismatch\n");
 301                         wpa_hexdump(MSG_DEBUG, "PMK from AS",
 302                                     e->authenticator_pmk, PMK_LEN);
 303                 } else if (e->radius_access_accept_received)
 304                         ret = 0;
 305         } else if (e->authenticator_pmk_len == 16 &&
 306                    eapol_sm_get_key(e->wpa_s->eapol, pmk, 16) == 0) {
 307                 wpa_hexdump(MSG_DEBUG, "LEAP PMK from EAPOL", pmk, 16);
 308                 if (os_memcmp(pmk, e->authenticator_pmk, 16) != 0) {
 309                         printf("WARNING: PMK mismatch\n");
 310                         wpa_hexdump(MSG_DEBUG, "PMK from AS",
 311                                     e->authenticator_pmk, 16);
 312                 } else if (e->radius_access_accept_received)
 313                         ret = 0;
 314         } else if (e->radius_access_accept_received && e->no_mppe_keys) {
 315                 /* No keying material expected */
 316                 ret = 0;
 317         }
 318
 319         if (ret && !e->no_mppe_keys)
 320                 e->num_mppe_mismatch++;
 321         else if (!e->no_mppe_keys)
 322                 e->num_mppe_ok++;
 323
 324         return ret;
 325 }
 326
 327
 328 static void eapol_sm_cb(struct eapol_sm *eapol, int success, void *ctx)
 329 {
 330         struct eapol_test_data *e = ctx;
 331         printf("eapol_sm_cb: success=%d\n", success);
 332         e->eapol_test_num_reauths--;
 333         if (e->eapol_test_num_reauths < 0)
 334                 eloop_terminate();
 335         else {
 336                 eapol_test_compare_pmk(e);
 337                 eloop_register_timeout(0, 100000, eapol_sm_reauth, e, NULL);
 338         }
 339 }
 340
 341
 342 static int test_eapol(struct eapol_test_data *e, struct wpa_supplicant *wpa_s,
 343                       struct wpa_ssid *ssid)
 344 {
 345         struct eapol_config eapol_conf;
 346         struct eapol_ctx *ctx;
 347
 348         ctx = os_zalloc(sizeof(*ctx));
 349         if (ctx == NULL) {
 350                 printf("Failed to allocate EAPOL context.\n");
 351                 return -1;
 352         }
 353         ctx->ctx = wpa_s;
 354         ctx->msg_ctx = wpa_s;
 355         ctx->scard_ctx = wpa_s->scard;
 356         ctx->cb = eapol_sm_cb;
 357         ctx->cb_ctx = e;
 358         ctx->eapol_send_ctx = wpa_s;
 359         ctx->preauth = 0;
 360         ctx->eapol_done_cb = eapol_test_eapol_done_cb;
 361         ctx->eapol_send = eapol_test_eapol_send;
 362         ctx->set_config_blob = eapol_test_set_config_blob;
 363         ctx->get_config_blob = eapol_test_get_config_blob;
 364         ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path;
 365         ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path;
 366         ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path;
 367
 368         wpa_s->eapol = eapol_sm_init(ctx);
 369         if (wpa_s->eapol == NULL) {
 370                 os_free(ctx);
 371                 printf("Failed to initialize EAPOL state machines.\n");
 372                 return -1;
 373         }
 374
 375         wpa_s->current_ssid = ssid;
 376         os_memset(&eapol_conf, 0, sizeof(eapol_conf));
 377         eapol_conf.accept_802_1x_keys = 1;
 378         eapol_conf.required_keys = 0;
 379         eapol_conf.fast_reauth = wpa_s->conf->fast_reauth;
 380         eapol_conf.workaround = ssid->eap_workaround;
 381         eapol_sm_notify_config(wpa_s->eapol, ssid, &eapol_conf);
 382         eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
 383
 384
 385         eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
 386         /* 802.1X::portControl = Auto */
 387         eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
 388
 389         return 0;
 390 }
 391
 392
 393 static void test_eapol_clean(struct eapol_test_data *e,
 394                              struct wpa_supplicant *wpa_s)
 395 {
 396         radius_client_deinit(e->radius);
 397         os_free(e->last_eap_radius);
 398         if (e->last_recv_radius) {
 399                 radius_msg_free(e->last_recv_radius);
 400                 os_free(e->last_recv_radius);
 401         }
 402         os_free(e->eap_identity);
 403         e->eap_identity = NULL;
 404         eapol_sm_deinit(wpa_s->eapol);
 405         wpa_s->eapol = NULL;
 406         if (e->radius_conf && e->radius_conf->auth_server) {
 407                 os_free(e->radius_conf->auth_server->shared_secret);
 408                 os_free(e->radius_conf->auth_server);
 409         }
 410         os_free(e->radius_conf);
 411         e->radius_conf = NULL;
 412         scard_deinit(wpa_s->scard);
 413         if (wpa_s->ctrl_iface) {
 414                 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
 415                 wpa_s->ctrl_iface = NULL;
 416         }
 417         wpa_config_free(wpa_s->conf);
 418 }
 419
 420
 421 static void send_eap_request_identity(void *eloop_ctx, void *timeout_ctx)
 422 {
 423         struct wpa_supplicant *wpa_s = eloop_ctx;
 424         u8 buf[100], *pos;
 425         struct ieee802_1x_hdr *hdr;
 426         struct eap_hdr *eap;
 427
 428         hdr = (struct ieee802_1x_hdr *) buf;
 429         hdr->version = EAPOL_VERSION;
 430         hdr->type = IEEE802_1X_TYPE_EAP_PACKET;
 431         hdr->length = htons(5);
 432
 433         eap = (struct eap_hdr *) (hdr + 1);
 434         eap->code = EAP_CODE_REQUEST;
 435         eap->identifier = 0;
 436         eap->length = htons(5);
 437         pos = (u8 *) (eap + 1);
 438         *pos = EAP_TYPE_IDENTITY;
 439
 440         printf("Sending fake EAP-Request-Identity\n");
 441         eapol_sm_rx_eapol(wpa_s->eapol, wpa_s->bssid, buf,
 442                           sizeof(*hdr) + 5);
 443 }
 444
 445
 446 static void eapol_test_timeout(void *eloop_ctx, void *timeout_ctx)
 447 {
 448         struct eapol_test_data *e = eloop_ctx;
 449         printf("EAPOL test timed out\n");
 450         e->auth_timed_out = 1;
 451         eloop_terminate();
 452 }
 453
 454
 455 static char *eap_type_text(u8 type)
 456 {
 457         switch (type) {
 458         case EAP_TYPE_IDENTITY: return "Identity";
 459         case EAP_TYPE_NOTIFICATION: return "Notification";
 460         case EAP_TYPE_NAK: return "Nak";
 461         case EAP_TYPE_TLS: return "TLS";
 462         case EAP_TYPE_TTLS: return "TTLS";
 463         case EAP_TYPE_PEAP: return "PEAP";
 464         case EAP_TYPE_SIM: return "SIM";
 465         case EAP_TYPE_GTC: return "GTC";
 466         case EAP_TYPE_MD5: return "MD5";
 467         case EAP_TYPE_OTP: return "OTP";
 468         case EAP_TYPE_FAST: return "FAST";
 469         case EAP_TYPE_SAKE: return "SAKE";
 470         case EAP_TYPE_PSK: return "PSK";
 471         default: return "Unknown";
 472         }
 473 }
 474
 475
 476 static void ieee802_1x_decapsulate_radius(struct eapol_test_data *e)
 477 {
 478         u8 *eap;
 479         size_t len;
 480         struct eap_hdr *hdr;
 481         int eap_type = -1;
 482         char buf[64];
 483         struct radius_msg *msg;
 484
 485         if (e->last_recv_radius == NULL)
 486                 return;
 487
 488         msg = e->last_recv_radius;
 489
 490         eap = radius_msg_get_eap(msg, &len);
 491         if (eap == NULL) {
 492                 /* draft-aboba-radius-rfc2869bis-20.txt, Chap. 2.6.3:
 493                  * RADIUS server SHOULD NOT send Access-Reject/no EAP-Message
 494                  * attribute */
 495                 wpa_printf(MSG_DEBUG, "could not extract "
 496                                "EAP-Message from RADIUS message");
 497                 os_free(e->last_eap_radius);
 498                 e->last_eap_radius = NULL;
 499                 e->last_eap_radius_len = 0;
 500                 return;
 501         }
 502
 503         if (len < sizeof(*hdr)) {
 504                 wpa_printf(MSG_DEBUG, "too short EAP packet "
 505                                "received from authentication server");
 506                 os_free(eap);
 507                 return;
 508         }
 509
 510         if (len > sizeof(*hdr))
 511                 eap_type = eap[sizeof(*hdr)];
 512
 513         hdr = (struct eap_hdr *) eap;
 514         switch (hdr->code) {
 515         case EAP_CODE_REQUEST:
 516                 os_snprintf(buf, sizeof(buf), "EAP-Request-%s (%d)",
 517                             eap_type >= 0 ? eap_type_text(eap_type) : "??",
 518                             eap_type);
 519                 break;
 520         case EAP_CODE_RESPONSE:
 521                 os_snprintf(buf, sizeof(buf), "EAP Response-%s (%d)",
 522                             eap_type >= 0 ? eap_type_text(eap_type) : "??",
 523                             eap_type);
 524                 break;
 525         case EAP_CODE_SUCCESS:
 526                 os_snprintf(buf, sizeof(buf), "EAP Success");
 527                 /* LEAP uses EAP Success within an authentication, so must not
 528                  * stop here with eloop_terminate(); */
 529                 break;
 530         case EAP_CODE_FAILURE:
 531                 os_snprintf(buf, sizeof(buf), "EAP Failure");
 532                 eloop_terminate();
 533                 break;
 534         default:
 535                 os_snprintf(buf, sizeof(buf), "unknown EAP code");
 536                 wpa_hexdump(MSG_DEBUG, "Decapsulated EAP packet", eap, len);
 537                 break;
 538         }
 539         wpa_printf(MSG_DEBUG, "decapsulated EAP packet (code=%d "
 540                        "id=%d len=%d) from RADIUS server: %s",
 541                       hdr->code, hdr->identifier, ntohs(hdr->length), buf);
 542
 543         /* sta->eapol_sm->be_auth.idFromServer = hdr->identifier; */
 544
 545         os_free(e->last_eap_radius);
 546         e->last_eap_radius = eap;
 547         e->last_eap_radius_len = len;
 548
 549         {
 550                 struct ieee802_1x_hdr *dot1x;
 551                 dot1x = os_malloc(sizeof(*dot1x) + len);
 552                 assert(dot1x != NULL);
 553                 dot1x->version = EAPOL_VERSION;
 554                 dot1x->type = IEEE802_1X_TYPE_EAP_PACKET;
 555                 dot1x->length = htons(len);
 556                 os_memcpy((u8 *) (dot1x + 1), eap, len);
 557                 eapol_sm_rx_eapol(e->wpa_s->eapol, e->wpa_s->bssid,
 558                                   (u8 *) dot1x, sizeof(*dot1x) + len);
 559                 os_free(dot1x);
 560         }
 561 }
 562
 563
 564 static void ieee802_1x_get_keys(struct eapol_test_data *e,
 565                                 struct radius_msg *msg, struct radius_msg *req,
 566                                 u8 *shared_secret, size_t shared_secret_len)
 567 {
 568         struct radius_ms_mppe_keys *keys;
 569
 570         keys = radius_msg_get_ms_keys(msg, req, shared_secret,
 571                                       shared_secret_len);
 572         if (keys && keys->send == NULL && keys->recv == NULL) {
 573                 os_free(keys);
 574                 keys = radius_msg_get_cisco_keys(msg, req, shared_secret,
 575                                                  shared_secret_len);
 576         }
 577
 578         if (keys) {
 579                 if (keys->send) {
 580                         wpa_hexdump(MSG_DEBUG, "MS-MPPE-Send-Key (sign)",
 581                                     keys->send, keys->send_len);
 582                 }
 583                 if (keys->recv) {
 584                         wpa_hexdump(MSG_DEBUG, "MS-MPPE-Recv-Key (crypt)",
 585                                     keys->recv, keys->recv_len);
 586                         e->authenticator_pmk_len =
 587                                 keys->recv_len > PMK_LEN ? PMK_LEN :
 588                                 keys->recv_len;
 589                         os_memcpy(e->authenticator_pmk, keys->recv,
 590                                   e->authenticator_pmk_len);
 591                 }
 592
 593                 os_free(keys->send);
 594                 os_free(keys->recv);
 595                 os_free(keys);
 596         }
 597 }
 598
 599
 600 /* Process the RADIUS frames from Authentication Server */
 601 static RadiusRxResult
 602 ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req,
 603                         u8 *shared_secret, size_t shared_secret_len,
 604                         void *data)
 605 {
 606         struct eapol_test_data *e = data;
 607
 608         /* RFC 2869, Ch. 5.13: valid Message-Authenticator attribute MUST be
 609          * present when packet contains an EAP-Message attribute */
 610         if (msg->hdr->code == RADIUS_CODE_ACCESS_REJECT &&
 611             radius_msg_get_attr(msg, RADIUS_ATTR_MESSAGE_AUTHENTICATOR, NULL,
 612                                 0) < 0 &&
 613             radius_msg_get_attr(msg, RADIUS_ATTR_EAP_MESSAGE, NULL, 0) < 0) {
 614                 wpa_printf(MSG_DEBUG, "Allowing RADIUS "
 615                               "Access-Reject without Message-Authenticator "
 616                               "since it does not include EAP-Message\n");
 617         } else if (radius_msg_verify(msg, shared_secret, shared_secret_len,
 618                                      req, 1)) {
 619                 printf("Incoming RADIUS packet did not have correct "
 620                        "Message-Authenticator - dropped\n");
 621                 return RADIUS_RX_UNKNOWN;
 622         }
 623
 624         if (msg->hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
 625             msg->hdr->code != RADIUS_CODE_ACCESS_REJECT &&
 626             msg->hdr->code != RADIUS_CODE_ACCESS_CHALLENGE) {
 627                 printf("Unknown RADIUS message code\n");
 628                 return RADIUS_RX_UNKNOWN;
 629         }
 630
 631         e->radius_identifier = -1;
 632         wpa_printf(MSG_DEBUG, "RADIUS packet matching with station");
 633
 634         if (e->last_recv_radius) {
 635                 radius_msg_free(e->last_recv_radius);
 636                 os_free(e->last_recv_radius);
 637         }
 638
 639         e->last_recv_radius = msg;
 640
 641         switch (msg->hdr->code) {
 642         case RADIUS_CODE_ACCESS_ACCEPT:
 643                 e->radius_access_accept_received = 1;
 644                 ieee802_1x_get_keys(e, msg, req, shared_secret,
 645                                     shared_secret_len);
 646                 break;
 647         case RADIUS_CODE_ACCESS_REJECT:
 648                 e->radius_access_reject_received = 1;
 649                 break;
 650         }
 651
 652         ieee802_1x_decapsulate_radius(e);
 653
 654         if ((msg->hdr->code == RADIUS_CODE_ACCESS_ACCEPT &&
 655              e->eapol_test_num_reauths < 0) ||
 656             msg->hdr->code == RADIUS_CODE_ACCESS_REJECT) {
 657                 eloop_terminate();
 658         }
 659
 660         return RADIUS_RX_QUEUED;
 661 }
 662
 663
 664 static void wpa_init_conf(struct eapol_test_data *e,
 665                           struct wpa_supplicant *wpa_s, const char *authsrv,
 666                           int port, const char *secret)
 667 {
 668         struct hostapd_radius_server *as;
 669         int res;
 670
 671         wpa_s->bssid[5] = 1;
 672         os_memcpy(wpa_s->own_addr, e->own_addr, ETH_ALEN);
 673         e->own_ip_addr.s_addr = htonl((127 << 24) | 1);
 674         os_strncpy(wpa_s->ifname, "test", sizeof(wpa_s->ifname));
 675
 676         e->radius_conf = os_zalloc(sizeof(struct hostapd_radius_servers));
 677         assert(e->radius_conf != NULL);
 678         e->radius_conf->num_auth_servers = 1;
 679         as = os_zalloc(sizeof(struct hostapd_radius_server));
 680         assert(as != NULL);
 681 #if defined(CONFIG_NATIVE_WINDOWS) || defined(CONFIG_ANSI_C_EXTRA)
 682         {
 683                 int a[4];
 684                 u8 *pos;
 685                 sscanf(authsrv, "%d.%d.%d.%d", &a[0], &a[1], &a[2], &a[3]);
 686                 pos = (u8 *) &as->addr.u.v4;
 687                 *pos++ = a[0];
 688                 *pos++ = a[1];
 689                 *pos++ = a[2];
 690                 *pos++ = a[3];
 691         }
 692 #else /* CONFIG_NATIVE_WINDOWS or CONFIG_ANSI_C_EXTRA */
 693         inet_aton(authsrv, &as->addr.u.v4);
 694 #endif /* CONFIG_NATIVE_WINDOWS or CONFIG_ANSI_C_EXTRA */
 695         as->addr.af = AF_INET;
 696         as->port = port;
 697         as->shared_secret = (u8 *) os_strdup(secret);
 698         as->shared_secret_len = os_strlen(secret);
 699         e->radius_conf->auth_server = as;
 700         e->radius_conf->auth_servers = as;
 701         e->radius_conf->msg_dumps = 1;
 702
 703         e->radius = radius_client_init(wpa_s, e->radius_conf);
 704         assert(e->radius != NULL);
 705
 706         res = radius_client_register(e->radius, RADIUS_AUTH,
 707                                      ieee802_1x_receive_auth, e);
 708         assert(res == 0);
 709 }
 710
 711
 712 static int scard_test(void)
 713 {
 714         struct scard_data *scard;
 715         size_t len;
 716         char imsi[20];
 717         unsigned char _rand[16];
 718 #ifdef PCSC_FUNCS
 719         unsigned char sres[4];
 720         unsigned char kc[8];
 721 #endif /* PCSC_FUNCS */
 722 #define num_triplets 5
 723         unsigned char rand_[num_triplets][16];
 724         unsigned char sres_[num_triplets][4];
 725         unsigned char kc_[num_triplets][8];
 726         int i, res;
 727         size_t j;
 728
 729 #define AKA_RAND_LEN 16
 730 #define AKA_AUTN_LEN 16
 731 #define AKA_AUTS_LEN 14
 732 #define RES_MAX_LEN 16
 733 #define IK_LEN 16
 734 #define CK_LEN 16
 735         unsigned char aka_rand[AKA_RAND_LEN];
 736         unsigned char aka_autn[AKA_AUTN_LEN];
 737         unsigned char aka_auts[AKA_AUTS_LEN];
 738         unsigned char aka_res[RES_MAX_LEN];
 739         size_t aka_res_len;
 740         unsigned char aka_ik[IK_LEN];
 741         unsigned char aka_ck[CK_LEN];
 742
 743         scard = scard_init(SCARD_TRY_BOTH);
 744         if (scard == NULL)
 745                 return -1;
 746         if (scard_set_pin(scard, "1234")) {
 747                 wpa_printf(MSG_WARNING, "PIN validation failed");
 748                 scard_deinit(scard);
 749                 return -1;
 750         }
 751
 752         len = sizeof(imsi);
 753         if (scard_get_imsi(scard, imsi, &len))
 754                 goto failed;
 755         wpa_hexdump_ascii(MSG_DEBUG, "SCARD: IMSI", (u8 *) imsi, len);
 756         /* NOTE: Permanent Username: 1 | IMSI */
 757
 758         os_memset(_rand, 0, sizeof(_rand));
 759         if (scard_gsm_auth(scard, _rand, sres, kc))
 760                 goto failed;
 761
 762         os_memset(_rand, 0xff, sizeof(_rand));
 763         if (scard_gsm_auth(scard, _rand, sres, kc))
 764                 goto failed;
 765
 766         for (i = 0; i < num_triplets; i++) {
 767                 os_memset(rand_[i], i, sizeof(rand_[i]));
 768                 if (scard_gsm_auth(scard, rand_[i], sres_[i], kc_[i]))
 769                         goto failed;
 770         }
 771
 772         for (i = 0; i < num_triplets; i++) {
 773                 printf("1");
 774                 for (j = 0; j < len; j++)
 775                         printf("%c", imsi[j]);
 776                 printf(",");
 777                 for (j = 0; j < 16; j++)
 778                         printf("%02X", rand_[i][j]);
 779                 printf(",");
 780                 for (j = 0; j < 4; j++)
 781                         printf("%02X", sres_[i][j]);
 782                 printf(",");
 783                 for (j = 0; j < 8; j++)
 784                         printf("%02X", kc_[i][j]);
 785                 printf("\n");
 786         }
 787
 788         wpa_printf(MSG_DEBUG, "Trying to use UMTS authentication");
 789
 790         /* seq 39 (0x28) */
 791         os_memset(aka_rand, 0xaa, 16);
 792         os_memcpy(aka_autn, "\x86\x71\x31\xcb\xa2\xfc\x61\xdf"
 793                   "\xa3\xb3\x97\x9d\x07\x32\xa2\x12", 16);
 794
 795         res = scard_umts_auth(scard, aka_rand, aka_autn, aka_res, &aka_res_len,
 796                               aka_ik, aka_ck, aka_auts);
 797         if (res == 0) {
 798                 wpa_printf(MSG_DEBUG, "UMTS auth completed successfully");
 799                 wpa_hexdump(MSG_DEBUG, "RES", aka_res, aka_res_len);
 800                 wpa_hexdump(MSG_DEBUG, "IK", aka_ik, IK_LEN);
 801                 wpa_hexdump(MSG_DEBUG, "CK", aka_ck, CK_LEN);
 802         } else if (res == -2) {
 803                 wpa_printf(MSG_DEBUG, "UMTS auth resulted in synchronization "
 804                            "failure");
 805                 wpa_hexdump(MSG_DEBUG, "AUTS", aka_auts, AKA_AUTS_LEN);
 806         } else {
 807                 wpa_printf(MSG_DEBUG, "UMTS auth failed");
 808         }
 809
 810 failed:
 811         scard_deinit(scard);
 812
 813         return 0;
 814 #undef num_triplets
 815 }
 816
 817
 818 static int scard_get_triplets(int argc, char *argv[])
 819 {
 820         struct scard_data *scard;
 821         size_t len;
 822         char imsi[20];
 823         unsigned char _rand[16];
 824         unsigned char sres[4];
 825         unsigned char kc[8];
 826         int num_triplets;
 827         int i;
 828         size_t j;
 829
 830         if (argc < 2 || ((num_triplets = atoi(argv[1])) <= 0)) {
 831                 printf("invalid parameters for sim command\n");
 832                 return -1;
 833         }
 834
 835         if (argc <= 2 || os_strcmp(argv[2], "debug") != 0) {
 836                 /* disable debug output */
 837                 wpa_debug_level = 99;
 838         }
 839
 840         scard = scard_init(SCARD_GSM_SIM_ONLY);
 841         if (scard == NULL) {
 842                 printf("Failed to open smartcard connection\n");
 843                 return -1;
 844         }
 845         if (scard_set_pin(scard, argv[0])) {
 846                 wpa_printf(MSG_WARNING, "PIN validation failed");
 847                 scard_deinit(scard);
 848                 return -1;
 849         }
 850
 851         len = sizeof(imsi);
 852         if (scard_get_imsi(scard, imsi, &len)) {
 853                 scard_deinit(scard);
 854                 return -1;
 855         }
 856
 857         for (i = 0; i < num_triplets; i++) {
 858                 os_memset(_rand, i, sizeof(_rand));
 859                 if (scard_gsm_auth(scard, _rand, sres, kc))
 860                         break;
 861
 862                 /* IMSI:Kc:SRES:RAND */
 863                 for (j = 0; j < len; j++)
 864                         printf("%c", imsi[j]);
 865                 printf(":");
 866                 for (j = 0; j < 8; j++)
 867                         printf("%02X", kc[j]);
 868                 printf(":");
 869                 for (j = 0; j < 4; j++)
 870                         printf("%02X", sres[j]);
 871                 printf(":");
 872                 for (j = 0; j < 16; j++)
 873                         printf("%02X", _rand[j]);
 874                 printf("\n");
 875         }
 876
 877         scard_deinit(scard);
 878
 879         return 0;
 880 }
 881
 882
 883 static void eapol_test_terminate(int sig, void *eloop_ctx,
 884                                  void *signal_ctx)
 885 {
 886         struct wpa_supplicant *wpa_s = eloop_ctx;
 887         wpa_msg(wpa_s, MSG_INFO, "Signal %d received - terminating", sig);
 888         eloop_terminate();
 889 }
 890
 891
 892 static void usage(void)
 893 {
 894         printf("usage:\n"
 895                "eapol_test [-nWS] -c<conf> [-a<AS IP>] [-p<AS port>] "
 896                "[-s<AS secret>] \\\n"
 897                "           [-r<count>] [-t<timeout>] [-C<Connect-Info>] \\\n"
 898                "           [-M<client MAC address>]\n"
 899                "eapol_test scard\n"
 900                "eapol_test sim <PIN> <num triplets> [debug]\n"
 901                "\n");
 902         printf("options:\n"
 903                "  -c<conf> = configuration file\n"
 904                "  -a<AS IP> = IP address of the authentication server, "
 905                "default 127.0.0.1\n"
 906                "  -p<AS port> = UDP port of the authentication server, "
 907                "default 1812\n"
 908                "  -s<AS secret> = shared secret with the authentication "
 909                "server, default 'radius'\n"
 910                "  -r<count> = number of re-authentications\n"
 911                "  -W = wait for a control interface monitor before starting\n"
 912                "  -S = save configuration after authentiation\n"
 913                "  -n = no MPPE keys expected\n"
 914                "  -t<timeout> = sets timeout in seconds (default: 30 s)\n"
 915                "  -C<Connect-Info> = RADIUS Connect-Info (default: "
 916                "CONNECT 11Mbps 802.11b)\n"
 917                "  -M<client MAC address> = Set own MAC address "
 918                "(Calling-Station-Id,\n"
 919                "                           default: 02:00:00:00:00:01)\n");
 920 }
 921
 922
 923 int main(int argc, char *argv[])
 924 {
 925         struct wpa_supplicant wpa_s;
 926         int c, ret = 1, wait_for_monitor = 0, save_config = 0;
 927         char *as_addr = "127.0.0.1";
 928         int as_port = 1812;
 929         char *as_secret = "radius";
 930         char *conf = NULL;
 931         int timeout = 30;
 932
 933         if (os_program_init())
 934                 return -1;
 935
 936         os_memset(&eapol_test, 0, sizeof(eapol_test));
 937         eapol_test.connect_info = "CONNECT 11Mbps 802.11b";
 938         os_memcpy(eapol_test.own_addr, "\x02\x00\x00\x00\x00\x01", ETH_ALEN);
 939
 940         wpa_debug_level = 0;
 941         wpa_debug_show_keys = 1;
 942
 943         for (;;) {
 944                 c = getopt(argc, argv, "a:c:C:M:np:r:s:St:W");
 945                 if (c < 0)
 946                         break;
 947                 switch (c) {
 948                 case 'a':
 949                         as_addr = optarg;
 950                         break;
 951                 case 'c':
 952                         conf = optarg;
 953                         break;
 954                 case 'C':
 955                         eapol_test.connect_info = optarg;
 956                         break;
 957                 case 'M':
 958                         if (hwaddr_aton(optarg, eapol_test.own_addr)) {
 959                                 usage();
 960                                 return -1;
 961                         }
 962                         break;
 963                 case 'n':
 964                         eapol_test.no_mppe_keys++;
 965                         break;
 966                 case 'p':
 967                         as_port = atoi(optarg);
 968                         break;
 969                 case 'r':
 970                         eapol_test.eapol_test_num_reauths = atoi(optarg);
 971                         break;
 972                 case 's':
 973                         as_secret = optarg;
 974                         break;
 975                 case 'S':
 976                         save_config++;
 977                         break;
 978                 case 't':
 979                         timeout = atoi(optarg);
 980                         break;
 981                 case 'W':
 982                         wait_for_monitor++;
 983                         break;
 984                 default:
 985                         usage();
 986                         return -1;
 987                 }
 988         }
 989
 990         if (argc > optind && os_strcmp(argv[optind], "scard") == 0) {
 991                 return scard_test();
 992         }
 993
 994         if (argc > optind && os_strcmp(argv[optind], "sim") == 0) {
 995                 return scard_get_triplets(argc - optind - 1,
 996                                           &argv[optind + 1]);
 997         }
 998
 999         if (conf == NULL) {
1000                 usage();
1001                 printf("Configuration file is required.\n");
1002                 return -1;
1003         }
1004
1005         if (eap_peer_register_methods()) {
1006                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
1007                 return -1;
1008         }
1009
1010         if (eloop_init(&wpa_s)) {
1011                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
1012                 return -1;
1013         }
1014
1015         os_memset(&wpa_s, 0, sizeof(wpa_s));
1016         eapol_test.wpa_s = &wpa_s;
1017         wpa_s.conf = wpa_config_read(conf);
1018         if (wpa_s.conf == NULL) {
1019                 printf("Failed to parse configuration file '%s'.\n", conf);
1020                 return -1;
1021         }
1022         if (wpa_s.conf->ssid == NULL) {
1023                 printf("No networks defined.\n");
1024                 return -1;
1025         }
1026
1027         wpa_init_conf(&eapol_test, &wpa_s, as_addr, as_port, as_secret);
1028         wpa_s.ctrl_iface = wpa_supplicant_ctrl_iface_init(&wpa_s);
1029         if (wpa_s.ctrl_iface == NULL) {
1030                 printf("Failed to initialize control interface '%s'.\n"
1031                        "You may have another eapol_test process already "
1032                        "running or the file was\n"
1033                        "left by an unclean termination of eapol_test in "
1034                        "which case you will need\n"
1035                        "to manually remove this file before starting "
1036                        "eapol_test again.\n",
1037                        wpa_s.conf->ctrl_interface);
1038                 return -1;
1039         }
1040         if (wpa_supplicant_scard_init(&wpa_s, wpa_s.conf->ssid))
1041                 return -1;
1042
1043         if (test_eapol(&eapol_test, &wpa_s, wpa_s.conf->ssid))
1044                 return -1;
1045
1046         if (wait_for_monitor)
1047                 wpa_supplicant_ctrl_iface_wait(wpa_s.ctrl_iface);
1048
1049         eloop_register_timeout(timeout, 0, eapol_test_timeout, &eapol_test,
1050                                NULL);
1051         eloop_register_timeout(0, 0, send_eap_request_identity, &wpa_s, NULL);
1052         eloop_register_signal_terminate(eapol_test_terminate, NULL);
1053         eloop_register_signal_reconfig(eapol_test_terminate, NULL);
1054         eloop_run();
1055
1056         eloop_cancel_timeout(eapol_test_timeout, &eapol_test, NULL);
1057         eloop_cancel_timeout(eapol_sm_reauth, &eapol_test, NULL);
1058
1059         if (eapol_test_compare_pmk(&eapol_test) == 0 ||
1060             eapol_test.no_mppe_keys)
1061                 ret = 0;
1062         if (eapol_test.auth_timed_out)
1063                 ret = -2;
1064         if (eapol_test.radius_access_reject_received)
1065                 ret = -3;
1066
1067         if (save_config)
1068                 wpa_config_write(conf, wpa_s.conf);
1069
1070         test_eapol_clean(&eapol_test, &wpa_s);
1071
1072         eap_peer_unregister_methods();
1073
1074         eloop_destroy();
1075
1076         printf("MPPE keys OK: %d  mismatch: %d\n",
1077                eapol_test.num_mppe_ok, eapol_test.num_mppe_mismatch);
1078         if (eapol_test.num_mppe_mismatch)
1079                 ret = -4;
1080         if (ret)
1081                 printf("FAILURE\n");
1082         else
1083                 printf("SUCCESS\n");
1084
1085         os_program_deinit();
1086
1087         return ret;
1088 }