wpa_supplicant/eapol_test.c

   1 /*
   2  * WPA Supplicant - test code
   3  * Copyright (c) 2003-2007, 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_supp/eapol_supp_sm.h"
  24 #include "eap_peer/eap.h"
  25 #include "eloop.h"
  26 #include "wpa.h"
  27 #include "eap_peer/eap_i.h"
  28 #include "wpa_supplicant_i.h"
  29 #include "radius/radius.h"
  30 #include "radius/radius_client.h"
  31 #include "ctrl_iface.h"
  32 #include "pcsc_funcs.h"
  33
  34
  35 extern int wpa_debug_level;
  36 extern int wpa_debug_show_keys;
  37
  38 struct wpa_driver_ops *wpa_supplicant_drivers[] = { NULL };
  39
  40
  41 struct eapol_test_data {
  42         struct wpa_supplicant *wpa_s;
  43
  44         int eapol_test_num_reauths;
  45         int no_mppe_keys;
  46         int num_mppe_ok, num_mppe_mismatch;
  47
  48         u8 radius_identifier;
  49         struct radius_msg *last_recv_radius;
  50         struct in_addr own_ip_addr;
  51         struct radius_client_data *radius;
  52         struct hostapd_radius_servers *radius_conf;
  53
  54         u8 *last_eap_radius; /* last received EAP Response from Authentication
  55                               * Server */
  56         size_t last_eap_radius_len;
  57
  58         u8 authenticator_pmk[PMK_LEN];
  59         size_t authenticator_pmk_len;
  60         int radius_access_accept_received;
  61         int radius_access_reject_received;
  62         int auth_timed_out;
  63
  64         u8 *eap_identity;
  65         size_t eap_identity_len;
  66
  67         char *connect_info;
  68         u8 own_addr[ETH_ALEN];
  69         int cui_flag;
  70         char *cui_str;
  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 static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
  80                               int level, const char *txt, size_t len)
  81 {
  82         if (addr)
  83                 wpa_printf(MSG_DEBUG, "STA " MACSTR ": %s\n",
  84                            MAC2STR(addr), txt);
  85         else
  86                 wpa_printf(MSG_DEBUG, "%s", txt);
  87 }
  88
  89
  90 static void ieee802_1x_encapsulate_radius(struct eapol_test_data *e,
  91                                           const u8 *eap, size_t len)
  92 {
  93         struct radius_msg *msg;
  94         char buf[128];
  95         const struct eap_hdr *hdr;
  96         const u8 *pos;
  97
  98         wpa_printf(MSG_DEBUG, "Encapsulating EAP message into a RADIUS "
  99                    "packet");
 100
 101         e->radius_identifier = radius_client_get_id(e->radius);
 102         msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST,
 103                              e->radius_identifier);
 104         if (msg == NULL) {
 105                 printf("Could not create net RADIUS packet\n");
 106                 return;
 107         }
 108
 109         radius_msg_make_authenticator(msg, (u8 *) e, sizeof(*e));
 110
 111         hdr = (const struct eap_hdr *) eap;
 112         pos = (const u8 *) (hdr + 1);
 113         if (len > sizeof(*hdr) && hdr->code == EAP_CODE_RESPONSE &&
 114             pos[0] == EAP_TYPE_IDENTITY) {
 115                 pos++;
 116                 os_free(e->eap_identity);
 117                 e->eap_identity_len = len - sizeof(*hdr) - 1;
 118                 e->eap_identity = os_malloc(e->eap_identity_len);
 119                 if (e->eap_identity) {
 120                         os_memcpy(e->eap_identity, pos, e->eap_identity_len);
 121                         wpa_hexdump(MSG_DEBUG, "Learned identity from "
 122                                     "EAP-Response-Identity",
 123                                     e->eap_identity, e->eap_identity_len);
 124                 }
 125         }
 126
 127         if (e->eap_identity &&
 128             !radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME,
 129                                  e->eap_identity, e->eap_identity_len)) {
 130                 printf("Could not add User-Name\n");
 131                 goto fail;
 132         }
 133
 134         if (!radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IP_ADDRESS,
 135                                  (u8 *) &e->own_ip_addr, 4)) {
 136                 printf("Could not add NAS-IP-Address\n");
 137                 goto fail;
 138         }
 139
 140         os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
 141                     MAC2STR(e->wpa_s->own_addr));
 142         if (!radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID,
 143                                  (u8 *) buf, os_strlen(buf))) {
 144                 printf("Could not add Calling-Station-Id\n");
 145                 goto fail;
 146         }
 147
 148         /* TODO: should probably check MTU from driver config; 2304 is max for
 149          * IEEE 802.11, but use 1400 to avoid problems with too large packets
 150          */
 151         if (!radius_msg_add_attr_int32(msg, RADIUS_ATTR_FRAMED_MTU, 1400)) {
 152                 printf("Could not add Framed-MTU\n");
 153                 goto fail;
 154         }
 155
 156         if (!radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT_TYPE,
 157                                        RADIUS_NAS_PORT_TYPE_IEEE_802_11)) {
 158                 printf("Could not add NAS-Port-Type\n");
 159                 goto fail;
 160         }
 161
 162         os_snprintf(buf, sizeof(buf), "%s", e->connect_info);
 163         if (!radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO,
 164                                  (u8 *) buf, os_strlen(buf))) {
 165                 printf("Could not add Connect-Info\n");
 166                 goto fail;
 167         }
 168
 169         if (e->cui_flag) {
 170                 int l = 0;
 171                 if (e->cui_flag == 1) {
 172                         l = 1;
 173                         buf[0] = '\0';
 174                 } else if (e->cui_flag == 2) {
 175                         os_snprintf(buf, sizeof(buf), "%s", e->cui_str);
 176                         l = os_strlen(buf);
 177                 }
 178                 if (!radius_msg_add_attr(msg,
 179                                          RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
 180                                          (u8 *) buf, l)) {
 181                         printf("Could not add Chargeable-User-Identity\n");
 182                         goto fail;
 183                 }
 184         }
 185
 186         if (eap && !radius_msg_add_eap(msg, eap, len)) {
 187                 printf("Could not add EAP-Message\n");
 188                 goto fail;
 189         }
 190
 191         /* State attribute must be copied if and only if this packet is
 192          * Access-Request reply to the previous Access-Challenge */
 193         if (e->last_recv_radius && e->last_recv_radius->hdr->code ==
 194             RADIUS_CODE_ACCESS_CHALLENGE) {
 195                 int res = radius_msg_copy_attr(msg, e->last_recv_radius,
 196                                                RADIUS_ATTR_STATE);
 197                 if (res < 0) {
 198                         printf("Could not copy State attribute from previous "
 199                                "Access-Challenge\n");
 200                         goto fail;
 201                 }
 202                 if (res > 0) {
 203                         wpa_printf(MSG_DEBUG, "  Copied RADIUS State "
 204                                    "Attribute");
 205                 }
 206         }
 207
 208         radius_client_send(e->radius, msg, RADIUS_AUTH, e->wpa_s->own_addr);
 209         return;
 210
 211  fail:
 212         radius_msg_free(msg);
 213         os_free(msg);
 214 }
 215
 216
 217 static int eapol_test_eapol_send(void *ctx, int type, const u8 *buf,
 218                                  size_t len)
 219 {
 220         /* struct wpa_supplicant *wpa_s = ctx; */
 221         printf("WPA: eapol_test_eapol_send(type=%d len=%lu)\n",
 222                type, (unsigned long) len);
 223         if (type == IEEE802_1X_TYPE_EAP_PACKET) {
 224                 wpa_hexdump(MSG_DEBUG, "TX EAP -> RADIUS", buf, len);
 225                 ieee802_1x_encapsulate_radius(&eapol_test, buf, len);
 226         }
 227         return 0;
 228 }
 229
 230
 231 static void eapol_test_set_config_blob(void *ctx,
 232                                        struct wpa_config_blob *blob)
 233 {
 234         struct wpa_supplicant *wpa_s = ctx;
 235         wpa_config_set_blob(wpa_s->conf, blob);
 236 }
 237
 238
 239 static const struct wpa_config_blob *
 240 eapol_test_get_config_blob(void *ctx, const char *name)
 241 {
 242         struct wpa_supplicant *wpa_s = ctx;
 243         return wpa_config_get_blob(wpa_s->conf, name);
 244 }
 245
 246
 247 static void eapol_test_eapol_done_cb(void *ctx)
 248 {
 249         printf("WPA: EAPOL processing complete\n");
 250 }
 251
 252
 253 static void eapol_sm_reauth(void *eloop_ctx, void *timeout_ctx)
 254 {
 255         struct eapol_test_data *e = eloop_ctx;
 256         printf("\n\n\n\n\neapol_test: Triggering EAP reauthentication\n\n");
 257         e->radius_access_accept_received = 0;
 258         send_eap_request_identity(e->wpa_s, NULL);
 259 }
 260
 261
 262 static int eapol_test_compare_pmk(struct eapol_test_data *e)
 263 {
 264         u8 pmk[PMK_LEN];
 265         int ret = 1;
 266
 267         if (eapol_sm_get_key(e->wpa_s->eapol, pmk, PMK_LEN) == 0) {
 268                 wpa_hexdump(MSG_DEBUG, "PMK from EAPOL", pmk, PMK_LEN);
 269                 if (os_memcmp(pmk, e->authenticator_pmk, PMK_LEN) != 0) {
 270                         printf("WARNING: PMK mismatch\n");
 271                         wpa_hexdump(MSG_DEBUG, "PMK from AS",
 272                                     e->authenticator_pmk, PMK_LEN);
 273                 } else if (e->radius_access_accept_received)
 274                         ret = 0;
 275         } else if (e->authenticator_pmk_len == 16 &&
 276                    eapol_sm_get_key(e->wpa_s->eapol, pmk, 16) == 0) {
 277                 wpa_hexdump(MSG_DEBUG, "LEAP PMK from EAPOL", pmk, 16);
 278                 if (os_memcmp(pmk, e->authenticator_pmk, 16) != 0) {
 279                         printf("WARNING: PMK mismatch\n");
 280                         wpa_hexdump(MSG_DEBUG, "PMK from AS",
 281                                     e->authenticator_pmk, 16);
 282                 } else if (e->radius_access_accept_received)
 283                         ret = 0;
 284         } else if (e->radius_access_accept_received && e->no_mppe_keys) {
 285                 /* No keying material expected */
 286                 ret = 0;
 287         }
 288
 289         if (ret && !e->no_mppe_keys)
 290                 e->num_mppe_mismatch++;
 291         else if (!e->no_mppe_keys)
 292                 e->num_mppe_ok++;
 293
 294         return ret;
 295 }
 296
 297
 298 static void eapol_sm_cb(struct eapol_sm *eapol, int success, void *ctx)
 299 {
 300         struct eapol_test_data *e = ctx;
 301         printf("eapol_sm_cb: success=%d\n", success);
 302         e->eapol_test_num_reauths--;
 303         if (e->eapol_test_num_reauths < 0)
 304                 eloop_terminate();
 305         else {
 306                 eapol_test_compare_pmk(e);
 307                 eloop_register_timeout(0, 100000, eapol_sm_reauth, e, NULL);
 308         }
 309 }
 310
 311
 312 static int test_eapol(struct eapol_test_data *e, struct wpa_supplicant *wpa_s,
 313                       struct wpa_ssid *ssid)
 314 {
 315         struct eapol_config eapol_conf;
 316         struct eapol_ctx *ctx;
 317
 318         ctx = os_zalloc(sizeof(*ctx));
 319         if (ctx == NULL) {
 320                 printf("Failed to allocate EAPOL context.\n");
 321                 return -1;
 322         }
 323         ctx->ctx = wpa_s;
 324         ctx->msg_ctx = wpa_s;
 325         ctx->scard_ctx = wpa_s->scard;
 326         ctx->cb = eapol_sm_cb;
 327         ctx->cb_ctx = e;
 328         ctx->eapol_send_ctx = wpa_s;
 329         ctx->preauth = 0;
 330         ctx->eapol_done_cb = eapol_test_eapol_done_cb;
 331         ctx->eapol_send = eapol_test_eapol_send;
 332         ctx->set_config_blob = eapol_test_set_config_blob;
 333         ctx->get_config_blob = eapol_test_get_config_blob;
 334 #ifdef EAP_TLS_OPENSSL
 335         ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path;
 336         ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path;
 337         ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path;
 338 #endif /* EAP_TLS_OPENSSL */
 339         ctx->mac_addr = wpa_s->own_addr;
 340
 341         wpa_s->eapol = eapol_sm_init(ctx);
 342         if (wpa_s->eapol == NULL) {
 343                 os_free(ctx);
 344                 printf("Failed to initialize EAPOL state machines.\n");
 345                 return -1;
 346         }
 347
 348         wpa_s->current_ssid = ssid;
 349         os_memset(&eapol_conf, 0, sizeof(eapol_conf));
 350         eapol_conf.accept_802_1x_keys = 1;
 351         eapol_conf.required_keys = 0;
 352         eapol_conf.fast_reauth = wpa_s->conf->fast_reauth;
 353         eapol_conf.workaround = ssid->eap_workaround;
 354         eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf);
 355         eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
 356
 357
 358         eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
 359         /* 802.1X::portControl = Auto */
 360         eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
 361
 362         return 0;
 363 }
 364
 365
 366 static void test_eapol_clean(struct eapol_test_data *e,
 367                              struct wpa_supplicant *wpa_s)
 368 {
 369         radius_client_deinit(e->radius);
 370         os_free(e->last_eap_radius);
 371         if (e->last_recv_radius) {
 372                 radius_msg_free(e->last_recv_radius);
 373                 os_free(e->last_recv_radius);
 374         }
 375         os_free(e->eap_identity);
 376         e->eap_identity = NULL;
 377         eapol_sm_deinit(wpa_s->eapol);
 378         wpa_s->eapol = NULL;
 379         if (e->radius_conf && e->radius_conf->auth_server) {
 380                 os_free(e->radius_conf->auth_server->shared_secret);
 381                 os_free(e->radius_conf->auth_server);
 382         }
 383         os_free(e->radius_conf);
 384         e->radius_conf = NULL;
 385         scard_deinit(wpa_s->scard);
 386         if (wpa_s->ctrl_iface) {
 387                 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
 388                 wpa_s->ctrl_iface = NULL;
 389         }
 390         wpa_config_free(wpa_s->conf);
 391 }
 392
 393
 394 static void send_eap_request_identity(void *eloop_ctx, void *timeout_ctx)
 395 {
 396         struct wpa_supplicant *wpa_s = eloop_ctx;
 397         u8 buf[100], *pos;
 398         struct ieee802_1x_hdr *hdr;
 399         struct eap_hdr *eap;
 400
 401         hdr = (struct ieee802_1x_hdr *) buf;
 402         hdr->version = EAPOL_VERSION;
 403         hdr->type = IEEE802_1X_TYPE_EAP_PACKET;
 404         hdr->length = htons(5);
 405
 406         eap = (struct eap_hdr *) (hdr + 1);
 407         eap->code = EAP_CODE_REQUEST;
 408         eap->identifier = 0;
 409         eap->length = htons(5);
 410         pos = (u8 *) (eap + 1);
 411         *pos = EAP_TYPE_IDENTITY;
 412
 413         printf("Sending fake EAP-Request-Identity\n");
 414         eapol_sm_rx_eapol(wpa_s->eapol, wpa_s->bssid, buf,
 415                           sizeof(*hdr) + 5);
 416 }
 417
 418
 419 static void eapol_test_timeout(void *eloop_ctx, void *timeout_ctx)
 420 {
 421         struct eapol_test_data *e = eloop_ctx;
 422         printf("EAPOL test timed out\n");
 423         e->auth_timed_out = 1;
 424         eloop_terminate();
 425 }
 426
 427
 428 static char *eap_type_text(u8 type)
 429 {
 430         switch (type) {
 431         case EAP_TYPE_IDENTITY: return "Identity";
 432         case EAP_TYPE_NOTIFICATION: return "Notification";
 433         case EAP_TYPE_NAK: return "Nak";
 434         case EAP_TYPE_TLS: return "TLS";
 435         case EAP_TYPE_TTLS: return "TTLS";
 436         case EAP_TYPE_PEAP: return "PEAP";
 437         case EAP_TYPE_SIM: return "SIM";
 438         case EAP_TYPE_GTC: return "GTC";
 439         case EAP_TYPE_MD5: return "MD5";
 440         case EAP_TYPE_OTP: return "OTP";
 441         case EAP_TYPE_FAST: return "FAST";
 442         case EAP_TYPE_SAKE: return "SAKE";
 443         case EAP_TYPE_PSK: return "PSK";
 444         default: return "Unknown";
 445         }
 446 }
 447
 448
 449 static void ieee802_1x_decapsulate_radius(struct eapol_test_data *e)
 450 {
 451         u8 *eap;
 452         size_t len;
 453         struct eap_hdr *hdr;
 454         int eap_type = -1;
 455         char buf[64];
 456         struct radius_msg *msg;
 457
 458         if (e->last_recv_radius == NULL)
 459                 return;
 460
 461         msg = e->last_recv_radius;
 462
 463         eap = radius_msg_get_eap(msg, &len);
 464         if (eap == NULL) {
 465                 /* draft-aboba-radius-rfc2869bis-20.txt, Chap. 2.6.3:
 466                  * RADIUS server SHOULD NOT send Access-Reject/no EAP-Message
 467                  * attribute */
 468                 wpa_printf(MSG_DEBUG, "could not extract "
 469                                "EAP-Message from RADIUS message");
 470                 os_free(e->last_eap_radius);
 471                 e->last_eap_radius = NULL;
 472                 e->last_eap_radius_len = 0;
 473                 return;
 474         }
 475
 476         if (len < sizeof(*hdr)) {
 477                 wpa_printf(MSG_DEBUG, "too short EAP packet "
 478                                "received from authentication server");
 479                 os_free(eap);
 480                 return;
 481         }
 482
 483         if (len > sizeof(*hdr))
 484                 eap_type = eap[sizeof(*hdr)];
 485
 486         hdr = (struct eap_hdr *) eap;
 487         switch (hdr->code) {
 488         case EAP_CODE_REQUEST:
 489                 os_snprintf(buf, sizeof(buf), "EAP-Request-%s (%d)",
 490                             eap_type >= 0 ? eap_type_text(eap_type) : "??",
 491                             eap_type);
 492                 break;
 493         case EAP_CODE_RESPONSE:
 494                 os_snprintf(buf, sizeof(buf), "EAP Response-%s (%d)",
 495                             eap_type >= 0 ? eap_type_text(eap_type) : "??",
 496                             eap_type);
 497                 break;
 498         case EAP_CODE_SUCCESS:
 499                 os_strlcpy(buf, "EAP Success", sizeof(buf));
 500                 /* LEAP uses EAP Success within an authentication, so must not
 501                  * stop here with eloop_terminate(); */
 502                 break;
 503         case EAP_CODE_FAILURE:
 504                 os_strlcpy(buf, "EAP Failure", sizeof(buf));
 505                 eloop_terminate();
 506                 break;
 507         default:
 508                 os_strlcpy(buf, "unknown EAP code", sizeof(buf));
 509                 wpa_hexdump(MSG_DEBUG, "Decapsulated EAP packet", eap, len);
 510                 break;
 511         }
 512         wpa_printf(MSG_DEBUG, "decapsulated EAP packet (code=%d "
 513                        "id=%d len=%d) from RADIUS server: %s",
 514                       hdr->code, hdr->identifier, ntohs(hdr->length), buf);
 515
 516         /* sta->eapol_sm->be_auth.idFromServer = hdr->identifier; */
 517
 518         os_free(e->last_eap_radius);
 519         e->last_eap_radius = eap;
 520         e->last_eap_radius_len = len;
 521
 522         {
 523                 struct ieee802_1x_hdr *dot1x;
 524                 dot1x = os_malloc(sizeof(*dot1x) + len);
 525                 assert(dot1x != NULL);
 526                 dot1x->version = EAPOL_VERSION;
 527                 dot1x->type = IEEE802_1X_TYPE_EAP_PACKET;
 528                 dot1x->length = htons(len);
 529                 os_memcpy((u8 *) (dot1x + 1), eap, len);
 530                 eapol_sm_rx_eapol(e->wpa_s->eapol, e->wpa_s->bssid,
 531                                   (u8 *) dot1x, sizeof(*dot1x) + len);
 532                 os_free(dot1x);
 533         }
 534 }
 535
 536
 537 static void ieee802_1x_get_keys(struct eapol_test_data *e,
 538                                 struct radius_msg *msg, struct radius_msg *req,
 539                                 u8 *shared_secret, size_t shared_secret_len)
 540 {
 541         struct radius_ms_mppe_keys *keys;
 542
 543         keys = radius_msg_get_ms_keys(msg, req, shared_secret,
 544                                       shared_secret_len);
 545         if (keys && keys->send == NULL && keys->recv == NULL) {
 546                 os_free(keys);
 547                 keys = radius_msg_get_cisco_keys(msg, req, shared_secret,
 548                                                  shared_secret_len);
 549         }
 550
 551         if (keys) {
 552                 if (keys->send) {
 553                         wpa_hexdump(MSG_DEBUG, "MS-MPPE-Send-Key (sign)",
 554                                     keys->send, keys->send_len);
 555                 }
 556                 if (keys->recv) {
 557                         wpa_hexdump(MSG_DEBUG, "MS-MPPE-Recv-Key (crypt)",
 558                                     keys->recv, keys->recv_len);
 559                         e->authenticator_pmk_len =
 560                                 keys->recv_len > PMK_LEN ? PMK_LEN :
 561                                 keys->recv_len;
 562                         os_memcpy(e->authenticator_pmk, keys->recv,
 563                                   e->authenticator_pmk_len);
 564                 }
 565
 566                 os_free(keys->send);
 567                 os_free(keys->recv);
 568                 os_free(keys);
 569         }
 570 }
 571
 572
 573 /* Process the RADIUS frames from Authentication Server */
 574 static RadiusRxResult
 575 ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req,
 576                         u8 *shared_secret, size_t shared_secret_len,
 577                         void *data)
 578 {
 579         struct eapol_test_data *e = data;
 580
 581         /* RFC 2869, Ch. 5.13: valid Message-Authenticator attribute MUST be
 582          * present when packet contains an EAP-Message attribute */
 583         if (msg->hdr->code == RADIUS_CODE_ACCESS_REJECT &&
 584             radius_msg_get_attr(msg, RADIUS_ATTR_MESSAGE_AUTHENTICATOR, NULL,
 585                                 0) < 0 &&
 586             radius_msg_get_attr(msg, RADIUS_ATTR_EAP_MESSAGE, NULL, 0) < 0) {
 587                 wpa_printf(MSG_DEBUG, "Allowing RADIUS "
 588                               "Access-Reject without Message-Authenticator "
 589                               "since it does not include EAP-Message\n");
 590         } else if (radius_msg_verify(msg, shared_secret, shared_secret_len,
 591                                      req, 1)) {
 592                 printf("Incoming RADIUS packet did not have correct "
 593                        "Message-Authenticator - dropped\n");
 594                 return RADIUS_RX_UNKNOWN;
 595         }
 596
 597         if (msg->hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
 598             msg->hdr->code != RADIUS_CODE_ACCESS_REJECT &&
 599             msg->hdr->code != RADIUS_CODE_ACCESS_CHALLENGE) {
 600                 printf("Unknown RADIUS message code\n");
 601                 return RADIUS_RX_UNKNOWN;
 602         }
 603
 604         e->radius_identifier = -1;
 605         wpa_printf(MSG_DEBUG, "RADIUS packet matching with station");
 606
 607         if (e->last_recv_radius) {
 608                 radius_msg_free(e->last_recv_radius);
 609                 os_free(e->last_recv_radius);
 610         }
 611
 612         e->last_recv_radius = msg;
 613
 614         switch (msg->hdr->code) {
 615         case RADIUS_CODE_ACCESS_ACCEPT:
 616                 e->radius_access_accept_received = 1;
 617                 ieee802_1x_get_keys(e, msg, req, shared_secret,
 618                                     shared_secret_len);
 619                 break;
 620         case RADIUS_CODE_ACCESS_REJECT:
 621                 e->radius_access_reject_received = 1;
 622                 break;
 623         }
 624
 625         ieee802_1x_decapsulate_radius(e);
 626
 627         if ((msg->hdr->code == RADIUS_CODE_ACCESS_ACCEPT &&
 628              e->eapol_test_num_reauths < 0) ||
 629             msg->hdr->code == RADIUS_CODE_ACCESS_REJECT) {
 630                 eloop_terminate();
 631         }
 632
 633         return RADIUS_RX_QUEUED;
 634 }
 635
 636
 637 static void wpa_init_conf(struct eapol_test_data *e,
 638                           struct wpa_supplicant *wpa_s, const char *authsrv,
 639                           int port, const char *secret,
 640                           const char *cli_addr)
 641 {
 642         struct hostapd_radius_server *as;
 643         int res;
 644
 645         wpa_s->bssid[5] = 1;
 646         os_memcpy(wpa_s->own_addr, e->own_addr, ETH_ALEN);
 647         e->own_ip_addr.s_addr = htonl((127 << 24) | 1);
 648         os_strlcpy(wpa_s->ifname, "test", sizeof(wpa_s->ifname));
 649
 650         e->radius_conf = os_zalloc(sizeof(struct hostapd_radius_servers));
 651         assert(e->radius_conf != NULL);
 652         e->radius_conf->num_auth_servers = 1;
 653         as = os_zalloc(sizeof(struct hostapd_radius_server));
 654         assert(as != NULL);
 655 #if defined(CONFIG_NATIVE_WINDOWS) || defined(CONFIG_ANSI_C_EXTRA)
 656         {
 657                 int a[4];
 658                 u8 *pos;
 659                 sscanf(authsrv, "%d.%d.%d.%d", &a[0], &a[1], &a[2], &a[3]);
 660                 pos = (u8 *) &as->addr.u.v4;
 661                 *pos++ = a[0];
 662                 *pos++ = a[1];
 663                 *pos++ = a[2];
 664                 *pos++ = a[3];
 665         }
 666 #else /* CONFIG_NATIVE_WINDOWS or CONFIG_ANSI_C_EXTRA */
 667         inet_aton(authsrv, &as->addr.u.v4);
 668 #endif /* CONFIG_NATIVE_WINDOWS or CONFIG_ANSI_C_EXTRA */
 669         as->addr.af = AF_INET;
 670         as->port = port;
 671         as->shared_secret = (u8 *) os_strdup(secret);
 672         as->shared_secret_len = os_strlen(secret);
 673         e->radius_conf->auth_server = as;
 674         e->radius_conf->auth_servers = as;
 675         e->radius_conf->msg_dumps = 1;
 676         if (cli_addr) {
 677                 if (hostapd_parse_ip_addr(cli_addr,
 678                                           &e->radius_conf->client_addr) == 0)
 679                         e->radius_conf->force_client_addr = 1;
 680                 else {
 681                         wpa_printf(MSG_ERROR, "Invalid IP address '%s'",
 682                                    cli_addr);
 683                         assert(0);
 684                 }
 685         }
 686
 687         e->radius = radius_client_init(wpa_s, e->radius_conf);
 688         assert(e->radius != NULL);
 689
 690         res = radius_client_register(e->radius, RADIUS_AUTH,
 691                                      ieee802_1x_receive_auth, e);
 692         assert(res == 0);
 693 }
 694
 695
 696 static int scard_test(void)
 697 {
 698         struct scard_data *scard;
 699         size_t len;
 700         char imsi[20];
 701         unsigned char _rand[16];
 702 #ifdef PCSC_FUNCS
 703         unsigned char sres[4];
 704         unsigned char kc[8];
 705 #endif /* PCSC_FUNCS */
 706 #define num_triplets 5
 707         unsigned char rand_[num_triplets][16];
 708         unsigned char sres_[num_triplets][4];
 709         unsigned char kc_[num_triplets][8];
 710         int i, res;
 711         size_t j;
 712
 713 #define AKA_RAND_LEN 16
 714 #define AKA_AUTN_LEN 16
 715 #define AKA_AUTS_LEN 14
 716 #define RES_MAX_LEN 16
 717 #define IK_LEN 16
 718 #define CK_LEN 16
 719         unsigned char aka_rand[AKA_RAND_LEN];
 720         unsigned char aka_autn[AKA_AUTN_LEN];
 721         unsigned char aka_auts[AKA_AUTS_LEN];
 722         unsigned char aka_res[RES_MAX_LEN];
 723         size_t aka_res_len;
 724         unsigned char aka_ik[IK_LEN];
 725         unsigned char aka_ck[CK_LEN];
 726
 727         scard = scard_init(SCARD_TRY_BOTH);
 728         if (scard == NULL)
 729                 return -1;
 730         if (scard_set_pin(scard, "1234")) {
 731                 wpa_printf(MSG_WARNING, "PIN validation failed");
 732                 scard_deinit(scard);
 733                 return -1;
 734         }
 735
 736         len = sizeof(imsi);
 737         if (scard_get_imsi(scard, imsi, &len))
 738                 goto failed;
 739         wpa_hexdump_ascii(MSG_DEBUG, "SCARD: IMSI", (u8 *) imsi, len);
 740         /* NOTE: Permanent Username: 1 | IMSI */
 741
 742         os_memset(_rand, 0, sizeof(_rand));
 743         if (scard_gsm_auth(scard, _rand, sres, kc))
 744                 goto failed;
 745
 746         os_memset(_rand, 0xff, sizeof(_rand));
 747         if (scard_gsm_auth(scard, _rand, sres, kc))
 748                 goto failed;
 749
 750         for (i = 0; i < num_triplets; i++) {
 751                 os_memset(rand_[i], i, sizeof(rand_[i]));
 752                 if (scard_gsm_auth(scard, rand_[i], sres_[i], kc_[i]))
 753                         goto failed;
 754         }
 755
 756         for (i = 0; i < num_triplets; i++) {
 757                 printf("1");
 758                 for (j = 0; j < len; j++)
 759                         printf("%c", imsi[j]);
 760                 printf(",");
 761                 for (j = 0; j < 16; j++)
 762                         printf("%02X", rand_[i][j]);
 763                 printf(",");
 764                 for (j = 0; j < 4; j++)
 765                         printf("%02X", sres_[i][j]);
 766                 printf(",");
 767                 for (j = 0; j < 8; j++)
 768                         printf("%02X", kc_[i][j]);
 769                 printf("\n");
 770         }
 771
 772         wpa_printf(MSG_DEBUG, "Trying to use UMTS authentication");
 773
 774         /* seq 39 (0x28) */
 775         os_memset(aka_rand, 0xaa, 16);
 776         os_memcpy(aka_autn, "\x86\x71\x31\xcb\xa2\xfc\x61\xdf"
 777                   "\xa3\xb3\x97\x9d\x07\x32\xa2\x12", 16);
 778
 779         res = scard_umts_auth(scard, aka_rand, aka_autn, aka_res, &aka_res_len,
 780                               aka_ik, aka_ck, aka_auts);
 781         if (res == 0) {
 782                 wpa_printf(MSG_DEBUG, "UMTS auth completed successfully");
 783                 wpa_hexdump(MSG_DEBUG, "RES", aka_res, aka_res_len);
 784                 wpa_hexdump(MSG_DEBUG, "IK", aka_ik, IK_LEN);
 785                 wpa_hexdump(MSG_DEBUG, "CK", aka_ck, CK_LEN);
 786         } else if (res == -2) {
 787                 wpa_printf(MSG_DEBUG, "UMTS auth resulted in synchronization "
 788                            "failure");
 789                 wpa_hexdump(MSG_DEBUG, "AUTS", aka_auts, AKA_AUTS_LEN);
 790         } else {
 791                 wpa_printf(MSG_DEBUG, "UMTS auth failed");
 792         }
 793
 794 failed:
 795         scard_deinit(scard);
 796
 797         return 0;
 798 #undef num_triplets
 799 }
 800
 801
 802 static int scard_get_triplets(int argc, char *argv[])
 803 {
 804         struct scard_data *scard;
 805         size_t len;
 806         char imsi[20];
 807         unsigned char _rand[16];
 808         unsigned char sres[4];
 809         unsigned char kc[8];
 810         int num_triplets;
 811         int i;
 812         size_t j;
 813
 814         if (argc < 2 || ((num_triplets = atoi(argv[1])) <= 0)) {
 815                 printf("invalid parameters for sim command\n");
 816                 return -1;
 817         }
 818
 819         if (argc <= 2 || os_strcmp(argv[2], "debug") != 0) {
 820                 /* disable debug output */
 821                 wpa_debug_level = 99;
 822         }
 823
 824         scard = scard_init(SCARD_GSM_SIM_ONLY);
 825         if (scard == NULL) {
 826                 printf("Failed to open smartcard connection\n");
 827                 return -1;
 828         }
 829         if (scard_set_pin(scard, argv[0])) {
 830                 wpa_printf(MSG_WARNING, "PIN validation failed");
 831                 scard_deinit(scard);
 832                 return -1;
 833         }
 834
 835         len = sizeof(imsi);
 836         if (scard_get_imsi(scard, imsi, &len)) {
 837                 scard_deinit(scard);
 838                 return -1;
 839         }
 840
 841         for (i = 0; i < num_triplets; i++) {
 842                 os_memset(_rand, i, sizeof(_rand));
 843                 if (scard_gsm_auth(scard, _rand, sres, kc))
 844                         break;
 845
 846                 /* IMSI:Kc:SRES:RAND */
 847                 for (j = 0; j < len; j++)
 848                         printf("%c", imsi[j]);
 849                 printf(":");
 850                 for (j = 0; j < 8; j++)
 851                         printf("%02X", kc[j]);
 852                 printf(":");
 853                 for (j = 0; j < 4; j++)
 854                         printf("%02X", sres[j]);
 855                 printf(":");
 856                 for (j = 0; j < 16; j++)
 857                         printf("%02X", _rand[j]);
 858                 printf("\n");
 859         }
 860
 861         scard_deinit(scard);
 862
 863         return 0;
 864 }
 865
 866
 867 static void eapol_test_terminate(int sig, void *eloop_ctx,
 868                                  void *signal_ctx)
 869 {
 870         struct wpa_supplicant *wpa_s = eloop_ctx;
 871         wpa_msg(wpa_s, MSG_INFO, "Signal %d received - terminating", sig);
 872         eloop_terminate();
 873 }
 874
 875
 876 static void usage(void)
 877 {
 878         printf("usage:\n"
 879                "eapol_test [-nWS] -c<conf> [-a<AS IP>] [-p<AS port>] "
 880                "[-s<AS secret>]\\\n"
 881                "           [-r<count>] [-t<timeout>] [-C<Connect-Info>] \\\n"
 882                "           [-M<client MAC address>] \\\n"
 883                "           [-I<CUI>] [-i] [-A<client IP>]\n"
 884                "eapol_test scard\n"
 885                "eapol_test sim <PIN> <num triplets> [debug]\n"
 886                "\n");
 887         printf("options:\n"
 888                "  -c<conf> = configuration file\n"
 889                "  -a<AS IP> = IP address of the authentication server, "
 890                "default 127.0.0.1\n"
 891                "  -p<AS port> = UDP port of the authentication server, "
 892                "default 1812\n"
 893                "  -s<AS secret> = shared secret with the authentication "
 894                "server, default 'radius'\n"
 895                "  -A<client IP> = IP address of the client, default: select "
 896                "automatically\n"
 897                "  -r<count> = number of re-authentications\n"
 898                "  -W = wait for a control interface monitor before starting\n"
 899                "  -S = save configuration after authentiation\n"
 900                "  -n = no MPPE keys expected\n"
 901                "  -t<timeout> = sets timeout in seconds (default: 30 s)\n"
 902                "  -C<Connect-Info> = RADIUS Connect-Info (default: "
 903                "CONNECT 11Mbps 802.11b)\n"
 904                "  -M<client MAC address> = Set own MAC address "
 905                "(Calling-Station-Id,\n"
 906                "                           default: 02:00:00:00:00:01)\n"
 907                "  -I<CUI> = send Chargeable-User-Identity containing the "
 908                "value of CUI\n"
 909                "  -i = send NUL value in Chargeable-User-Identity\n");
 910 }
 911
 912
 913 int main(int argc, char *argv[])
 914 {
 915         struct wpa_supplicant wpa_s;
 916         int c, ret = 1, wait_for_monitor = 0, save_config = 0;
 917         char *as_addr = "127.0.0.1";
 918         int as_port = 1812;
 919         char *as_secret = "radius";
 920         char *cli_addr = NULL;
 921         char *conf = NULL;
 922         int timeout = 30;
 923
 924         if (os_program_init())
 925                 return -1;
 926
 927         hostapd_logger_register_cb(hostapd_logger_cb);
 928
 929         os_memset(&eapol_test, 0, sizeof(eapol_test));
 930         eapol_test.connect_info = "CONNECT 11Mbps 802.11b";
 931         os_memcpy(eapol_test.own_addr, "\x02\x00\x00\x00\x00\x01", ETH_ALEN);
 932
 933         wpa_debug_level = 0;
 934         wpa_debug_show_keys = 1;
 935
 936         for (;;) {
 937                 c = getopt(argc, argv, "a:A:c:C:iI:M:np:r:s:St:W");
 938                 if (c < 0)
 939                         break;
 940                 switch (c) {
 941                 case 'a':
 942                         as_addr = optarg;
 943                         break;
 944                 case 'A':
 945                         cli_addr = optarg;
 946                         break;
 947                 case 'c':
 948                         conf = optarg;
 949                         break;
 950                 case 'C':
 951                         eapol_test.connect_info = optarg;
 952                         break;
 953                 case 'i':
 954                         eapol_test.cui_flag = 1;
 955                         break;
 956                 case 'I':
 957                         eapol_test.cui_flag = 2;
 958                         eapol_test.cui_str = optarg;
 959                         break;
 960                 case 'M':
 961                         if (hwaddr_aton(optarg, eapol_test.own_addr)) {
 962                                 usage();
 963                                 return -1;
 964                         }
 965                         break;
 966                 case 'n':
 967                         eapol_test.no_mppe_keys++;
 968                         break;
 969                 case 'p':
 970                         as_port = atoi(optarg);
 971                         break;
 972                 case 'r':
 973                         eapol_test.eapol_test_num_reauths = atoi(optarg);
 974                         break;
 975                 case 's':
 976                         as_secret = optarg;
 977                         break;
 978                 case 'S':
 979                         save_config++;
 980                         break;
 981                 case 't':
 982                         timeout = atoi(optarg);
 983                         break;
 984                 case 'W':
 985                         wait_for_monitor++;
 986                         break;
 987                 default:
 988                         usage();
 989                         return -1;
 990                 }
 991         }
 992
 993         if (argc > optind && os_strcmp(argv[optind], "scard") == 0) {
 994                 return scard_test();
 995         }
 996
 997         if (argc > optind && os_strcmp(argv[optind], "sim") == 0) {
 998                 return scard_get_triplets(argc - optind - 1,
 999                                           &argv[optind + 1]);
1000         }
1001
1002         if (conf == NULL) {
1003                 usage();
1004                 printf("Configuration file is required.\n");
1005                 return -1;
1006         }
1007
1008         if (eap_peer_register_methods()) {
1009                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
1010                 return -1;
1011         }
1012
1013         if (eloop_init(&wpa_s)) {
1014                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
1015                 return -1;
1016         }
1017
1018         os_memset(&wpa_s, 0, sizeof(wpa_s));
1019         eapol_test.wpa_s = &wpa_s;
1020         wpa_s.conf = wpa_config_read(conf);
1021         if (wpa_s.conf == NULL) {
1022                 printf("Failed to parse configuration file '%s'.\n", conf);
1023                 return -1;
1024         }
1025         if (wpa_s.conf->ssid == NULL) {
1026                 printf("No networks defined.\n");
1027                 return -1;
1028         }
1029
1030         wpa_init_conf(&eapol_test, &wpa_s, as_addr, as_port, as_secret,
1031                       cli_addr);
1032         wpa_s.ctrl_iface = wpa_supplicant_ctrl_iface_init(&wpa_s);
1033         if (wpa_s.ctrl_iface == NULL) {
1034                 printf("Failed to initialize control interface '%s'.\n"
1035                        "You may have another eapol_test process already "
1036                        "running or the file was\n"
1037                        "left by an unclean termination of eapol_test in "
1038                        "which case you will need\n"
1039                        "to manually remove this file before starting "
1040                        "eapol_test again.\n",
1041                        wpa_s.conf->ctrl_interface);
1042                 return -1;
1043         }
1044         if (wpa_supplicant_scard_init(&wpa_s, wpa_s.conf->ssid))
1045                 return -1;
1046
1047         if (test_eapol(&eapol_test, &wpa_s, wpa_s.conf->ssid))
1048                 return -1;
1049
1050         if (wait_for_monitor)
1051                 wpa_supplicant_ctrl_iface_wait(wpa_s.ctrl_iface);
1052
1053         eloop_register_timeout(timeout, 0, eapol_test_timeout, &eapol_test,
1054                                NULL);
1055         eloop_register_timeout(0, 0, send_eap_request_identity, &wpa_s, NULL);
1056         eloop_register_signal_terminate(eapol_test_terminate, NULL);
1057         eloop_register_signal_reconfig(eapol_test_terminate, NULL);
1058         eloop_run();
1059
1060         eloop_cancel_timeout(eapol_test_timeout, &eapol_test, NULL);
1061         eloop_cancel_timeout(eapol_sm_reauth, &eapol_test, NULL);
1062
1063         if (eapol_test_compare_pmk(&eapol_test) == 0 ||
1064             eapol_test.no_mppe_keys)
1065                 ret = 0;
1066         if (eapol_test.auth_timed_out)
1067                 ret = -2;
1068         if (eapol_test.radius_access_reject_received)
1069                 ret = -3;
1070
1071         if (save_config)
1072                 wpa_config_write(conf, wpa_s.conf);
1073
1074         test_eapol_clean(&eapol_test, &wpa_s);
1075
1076         eap_peer_unregister_methods();
1077
1078         eloop_destroy();
1079
1080         printf("MPPE keys OK: %d  mismatch: %d\n",
1081                eapol_test.num_mppe_ok, eapol_test.num_mppe_mismatch);
1082         if (eapol_test.num_mppe_mismatch)
1083                 ret = -4;
1084         if (ret)
1085                 printf("FAILURE\n");
1086         else
1087                 printf("SUCCESS\n");
1088
1089         os_program_deinit();
1090
1091         return ret;
1092 }