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