www.project-moonshot.org Git - mech_eap.orig/blob - libeap/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 "rsn_supp/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_drivers[] = { NULL };
  39
  40
  41 struct extra_radius_attr {
  42         u8 type;
  43         char syntax;
  44         char *data;
  45         struct extra_radius_attr *next;
  46 };
  47
  48 struct eapol_test_data {
  49         struct wpa_supplicant *wpa_s;
  50
  51         int eapol_test_num_reauths;
  52         int no_mppe_keys;
  53         int num_mppe_ok, num_mppe_mismatch;
  54
  55         u8 radius_identifier;
  56         struct radius_msg *last_recv_radius;
  57         struct in_addr own_ip_addr;
  58         struct radius_client_data *radius;
  59         struct hostapd_radius_servers *radius_conf;
  60
  61         u8 *last_eap_radius; /* last received EAP Response from Authentication
  62                               * Server */
  63         size_t last_eap_radius_len;
  64
  65         u8 authenticator_pmk[PMK_LEN];
  66         size_t authenticator_pmk_len;
  67         int radius_access_accept_received;
  68         int radius_access_reject_received;
  69         int auth_timed_out;
  70
  71         u8 *eap_identity;
  72         size_t eap_identity_len;
  73
  74         char *connect_info;
  75         u8 own_addr[ETH_ALEN];
  76         struct extra_radius_attr *extra_attrs;
  77 };
  78
  79 static struct eapol_test_data eapol_test;
  80
  81
  82 static void send_eap_request_identity(void *eloop_ctx, void *timeout_ctx);
  83
  84
  85 static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
  86                               int level, const char *txt, size_t len)
  87 {
  88         if (addr)
  89                 wpa_printf(MSG_DEBUG, "STA " MACSTR ": %s\n",
  90                            MAC2STR(addr), txt);
  91         else
  92                 wpa_printf(MSG_DEBUG, "%s", txt);
  93 }
  94
  95
  96 static int add_extra_attr(struct radius_msg *msg,
  97                           struct extra_radius_attr *attr)
  98 {
  99         size_t len;
 100         char *pos;
 101         u32 val;
 102         char buf[128];
 103
 104         switch (attr->syntax) {
 105         case 's':
 106                 os_snprintf(buf, sizeof(buf), "%s", attr->data);
 107                 len = os_strlen(buf);
 108                 break;
 109         case 'n':
 110                 buf[0] = '\0';
 111                 len = 1;
 112                 break;
 113         case 'x':
 114                 pos = attr->data;
 115                 if (pos[0] == '0' && pos[1] == 'x')
 116                         pos += 2;
 117                 len = os_strlen(pos);
 118                 if ((len & 1) || (len / 2) > sizeof(buf)) {
 119                         printf("Invalid extra attribute hexstring\n");
 120                         return -1;
 121                 }
 122                 len /= 2;
 123                 if (hexstr2bin(pos, (u8 *) buf, len) < 0) {
 124                         printf("Invalid extra attribute hexstring\n");
 125                         return -1;
 126                 }
 127                 break;
 128         case 'd':
 129                 val = htonl(atoi(attr->data));
 130                 os_memcpy(buf, &val, 4);
 131                 len = 4;
 132                 break;
 133         default:
 134                 printf("Incorrect extra attribute syntax specification\n");
 135                 return -1;
 136         }
 137
 138         if (!radius_msg_add_attr(msg, attr->type, (u8 *) buf, len)) {
 139                 printf("Could not add attribute %d\n", attr->type);
 140                 return -1;
 141         }
 142
 143         return 0;
 144 }
 145
 146
 147 static int add_extra_attrs(struct radius_msg *msg,
 148                            struct extra_radius_attr *attrs)
 149 {
 150         struct extra_radius_attr *p;
 151         for (p = attrs; p; p = p->next) {
 152                 if (add_extra_attr(msg, p) < 0)
 153                         return -1;
 154         }
 155         return 0;
 156 }
 157
 158
 159 static struct extra_radius_attr *
 160 find_extra_attr(struct extra_radius_attr *attrs, u8 type)
 161 {
 162         struct extra_radius_attr *p;
 163         for (p = attrs; p; p = p->next) {
 164                 if (p->type == type)
 165                         return p;
 166         }
 167         return NULL;
 168 }
 169
 170
 171 static void ieee802_1x_encapsulate_radius(struct eapol_test_data *e,
 172                                           const u8 *eap, size_t len)
 173 {
 174         struct radius_msg *msg;
 175         char buf[128];
 176         const struct eap_hdr *hdr;
 177         const u8 *pos;
 178
 179         wpa_printf(MSG_DEBUG, "Encapsulating EAP message into a RADIUS "
 180                    "packet");
 181
 182         e->radius_identifier = radius_client_get_id(e->radius);
 183         msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST,
 184                              e->radius_identifier);
 185         if (msg == NULL) {
 186                 printf("Could not create net RADIUS packet\n");
 187                 return;
 188         }
 189
 190         radius_msg_make_authenticator(msg, (u8 *) e, sizeof(*e));
 191
 192         hdr = (const struct eap_hdr *) eap;
 193         pos = (const u8 *) (hdr + 1);
 194         if (len > sizeof(*hdr) && hdr->code == EAP_CODE_RESPONSE &&
 195             pos[0] == EAP_TYPE_IDENTITY) {
 196                 pos++;
 197                 os_free(e->eap_identity);
 198                 e->eap_identity_len = len - sizeof(*hdr) - 1;
 199                 e->eap_identity = os_malloc(e->eap_identity_len);
 200                 if (e->eap_identity) {
 201                         os_memcpy(e->eap_identity, pos, e->eap_identity_len);
 202                         wpa_hexdump(MSG_DEBUG, "Learned identity from "
 203                                     "EAP-Response-Identity",
 204                                     e->eap_identity, e->eap_identity_len);
 205                 }
 206         }
 207
 208         if (e->eap_identity &&
 209             !radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME,
 210                                  e->eap_identity, e->eap_identity_len)) {
 211                 printf("Could not add User-Name\n");
 212                 goto fail;
 213         }
 214
 215         if (!find_extra_attr(e->extra_attrs, RADIUS_ATTR_NAS_IP_ADDRESS) &&
 216             !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IP_ADDRESS,
 217                                  (u8 *) &e->own_ip_addr, 4)) {
 218                 printf("Could not add NAS-IP-Address\n");
 219                 goto fail;
 220         }
 221
 222         os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
 223                     MAC2STR(e->wpa_s->own_addr));
 224         if (!find_extra_attr(e->extra_attrs, RADIUS_ATTR_CALLING_STATION_ID)
 225             &&
 226             !radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID,
 227                                  (u8 *) buf, os_strlen(buf))) {
 228                 printf("Could not add Calling-Station-Id\n");
 229                 goto fail;
 230         }
 231
 232         /* TODO: should probably check MTU from driver config; 2304 is max for
 233          * IEEE 802.11, but use 1400 to avoid problems with too large packets
 234          */
 235         if (!find_extra_attr(e->extra_attrs, RADIUS_ATTR_FRAMED_MTU) &&
 236             !radius_msg_add_attr_int32(msg, RADIUS_ATTR_FRAMED_MTU, 1400)) {
 237                 printf("Could not add Framed-MTU\n");
 238                 goto fail;
 239         }
 240
 241         if (!find_extra_attr(e->extra_attrs, RADIUS_ATTR_NAS_PORT_TYPE) &&
 242             !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT_TYPE,
 243                                        RADIUS_NAS_PORT_TYPE_IEEE_802_11)) {
 244                 printf("Could not add NAS-Port-Type\n");
 245                 goto fail;
 246         }
 247
 248         os_snprintf(buf, sizeof(buf), "%s", e->connect_info);
 249         if (!find_extra_attr(e->extra_attrs, RADIUS_ATTR_CONNECT_INFO) &&
 250             !radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO,
 251                                  (u8 *) buf, os_strlen(buf))) {
 252                 printf("Could not add Connect-Info\n");
 253                 goto fail;
 254         }
 255
 256         if (add_extra_attrs(msg, e->extra_attrs) < 0)
 257                 goto fail;
 258
 259         if (eap && !radius_msg_add_eap(msg, eap, len)) {
 260                 printf("Could not add EAP-Message\n");
 261                 goto fail;
 262         }
 263
 264         /* State attribute must be copied if and only if this packet is
 265          * Access-Request reply to the previous Access-Challenge */
 266         if (e->last_recv_radius &&
 267             radius_msg_get_hdr(e->last_recv_radius)->code ==
 268             RADIUS_CODE_ACCESS_CHALLENGE) {
 269                 int res = radius_msg_copy_attr(msg, e->last_recv_radius,
 270                                                RADIUS_ATTR_STATE);
 271                 if (res < 0) {
 272                         printf("Could not copy State attribute from previous "
 273                                "Access-Challenge\n");
 274                         goto fail;
 275                 }
 276                 if (res > 0) {
 277                         wpa_printf(MSG_DEBUG, "  Copied RADIUS State "
 278                                    "Attribute");
 279                 }
 280         }
 281
 282         radius_client_send(e->radius, msg, RADIUS_AUTH, e->wpa_s->own_addr);
 283         return;
 284
 285  fail:
 286         radius_msg_free(msg);
 287 }
 288
 289
 290 static int eapol_test_eapol_send(void *ctx, int type, const u8 *buf,
 291                                  size_t len)
 292 {
 293         /* struct wpa_supplicant *wpa_s = ctx; */
 294         printf("WPA: eapol_test_eapol_send(type=%d len=%lu)\n",
 295                type, (unsigned long) len);
 296         if (type == IEEE802_1X_TYPE_EAP_PACKET) {
 297                 wpa_hexdump(MSG_DEBUG, "TX EAP -> RADIUS", buf, len);
 298                 ieee802_1x_encapsulate_radius(&eapol_test, buf, len);
 299         }
 300         return 0;
 301 }
 302
 303
 304 static void eapol_test_set_config_blob(void *ctx,
 305                                        struct wpa_config_blob *blob)
 306 {
 307         struct wpa_supplicant *wpa_s = ctx;
 308         wpa_config_set_blob(wpa_s->conf, blob);
 309 }
 310
 311
 312 static const struct wpa_config_blob *
 313 eapol_test_get_config_blob(void *ctx, const char *name)
 314 {
 315         struct wpa_supplicant *wpa_s = ctx;
 316         return wpa_config_get_blob(wpa_s->conf, name);
 317 }
 318
 319
 320 static void eapol_test_eapol_done_cb(void *ctx)
 321 {
 322         printf("WPA: EAPOL processing complete\n");
 323 }
 324
 325
 326 static void eapol_sm_reauth(void *eloop_ctx, void *timeout_ctx)
 327 {
 328         struct eapol_test_data *e = eloop_ctx;
 329         printf("\n\n\n\n\neapol_test: Triggering EAP reauthentication\n\n");
 330         e->radius_access_accept_received = 0;
 331         send_eap_request_identity(e->wpa_s, NULL);
 332 }
 333
 334
 335 static int eapol_test_compare_pmk(struct eapol_test_data *e)
 336 {
 337         u8 pmk[PMK_LEN];
 338         int ret = 1;
 339
 340         if (eapol_sm_get_key(e->wpa_s->eapol, pmk, PMK_LEN) == 0) {
 341                 wpa_hexdump(MSG_DEBUG, "PMK from EAPOL", pmk, PMK_LEN);
 342                 if (os_memcmp(pmk, e->authenticator_pmk, PMK_LEN) != 0) {
 343                         printf("WARNING: PMK mismatch\n");
 344                         wpa_hexdump(MSG_DEBUG, "PMK from AS",
 345                                     e->authenticator_pmk, PMK_LEN);
 346                 } else if (e->radius_access_accept_received)
 347                         ret = 0;
 348         } else if (e->authenticator_pmk_len == 16 &&
 349                    eapol_sm_get_key(e->wpa_s->eapol, pmk, 16) == 0) {
 350                 wpa_hexdump(MSG_DEBUG, "LEAP PMK from EAPOL", pmk, 16);
 351                 if (os_memcmp(pmk, e->authenticator_pmk, 16) != 0) {
 352                         printf("WARNING: PMK mismatch\n");
 353                         wpa_hexdump(MSG_DEBUG, "PMK from AS",
 354                                     e->authenticator_pmk, 16);
 355                 } else if (e->radius_access_accept_received)
 356                         ret = 0;
 357         } else if (e->radius_access_accept_received && e->no_mppe_keys) {
 358                 /* No keying material expected */
 359                 ret = 0;
 360         }
 361
 362         if (ret && !e->no_mppe_keys)
 363                 e->num_mppe_mismatch++;
 364         else if (!e->no_mppe_keys)
 365                 e->num_mppe_ok++;
 366
 367         return ret;
 368 }
 369
 370
 371 static void eapol_sm_cb(struct eapol_sm *eapol, int success, void *ctx)
 372 {
 373         struct eapol_test_data *e = ctx;
 374         printf("eapol_sm_cb: success=%d\n", success);
 375         e->eapol_test_num_reauths--;
 376         if (e->eapol_test_num_reauths < 0)
 377                 eloop_terminate();
 378         else {
 379                 eapol_test_compare_pmk(e);
 380                 eloop_register_timeout(0, 100000, eapol_sm_reauth, e, NULL);
 381         }
 382 }
 383
 384
 385 static int test_eapol(struct eapol_test_data *e, struct wpa_supplicant *wpa_s,
 386                       struct wpa_ssid *ssid)
 387 {
 388         struct eapol_config eapol_conf;
 389         struct eapol_ctx *ctx;
 390
 391         ctx = os_zalloc(sizeof(*ctx));
 392         if (ctx == NULL) {
 393                 printf("Failed to allocate EAPOL context.\n");
 394                 return -1;
 395         }
 396         ctx->ctx = wpa_s;
 397         ctx->msg_ctx = wpa_s;
 398         ctx->scard_ctx = wpa_s->scard;
 399         ctx->cb = eapol_sm_cb;
 400         ctx->cb_ctx = e;
 401         ctx->eapol_send_ctx = wpa_s;
 402         ctx->preauth = 0;
 403         ctx->eapol_done_cb = eapol_test_eapol_done_cb;
 404         ctx->eapol_send = eapol_test_eapol_send;
 405         ctx->set_config_blob = eapol_test_set_config_blob;
 406         ctx->get_config_blob = eapol_test_get_config_blob;
 407         ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path;
 408         ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path;
 409         ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path;
 410
 411         wpa_s->eapol = eapol_sm_init(ctx);
 412         if (wpa_s->eapol == NULL) {
 413                 os_free(ctx);
 414                 printf("Failed to initialize EAPOL state machines.\n");
 415                 return -1;
 416         }
 417
 418         wpa_s->current_ssid = ssid;
 419         os_memset(&eapol_conf, 0, sizeof(eapol_conf));
 420         eapol_conf.accept_802_1x_keys = 1;
 421         eapol_conf.required_keys = 0;
 422         eapol_conf.fast_reauth = wpa_s->conf->fast_reauth;
 423         eapol_conf.workaround = ssid->eap_workaround;
 424         eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf);
 425         eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
 426
 427
 428         eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
 429         /* 802.1X::portControl = Auto */
 430         eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
 431
 432         return 0;
 433 }
 434
 435
 436 static void test_eapol_clean(struct eapol_test_data *e,
 437                              struct wpa_supplicant *wpa_s)
 438 {
 439         struct extra_radius_attr *p, *prev;
 440
 441         radius_client_deinit(e->radius);
 442         os_free(e->last_eap_radius);
 443         radius_msg_free(e->last_recv_radius);
 444         e->last_recv_radius = NULL;
 445         os_free(e->eap_identity);
 446         e->eap_identity = NULL;
 447         eapol_sm_deinit(wpa_s->eapol);
 448         wpa_s->eapol = NULL;
 449         if (e->radius_conf && e->radius_conf->auth_server) {
 450                 os_free(e->radius_conf->auth_server->shared_secret);
 451                 os_free(e->radius_conf->auth_server);
 452         }
 453         os_free(e->radius_conf);
 454         e->radius_conf = NULL;
 455         scard_deinit(wpa_s->scard);
 456         if (wpa_s->ctrl_iface) {
 457                 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
 458                 wpa_s->ctrl_iface = NULL;
 459         }
 460         wpa_config_free(wpa_s->conf);
 461
 462         p = e->extra_attrs;
 463         while (p) {
 464                 prev = p;
 465                 p = p->next;
 466                 os_free(prev);
 467         }
 468 }
 469
 470
 471 static void send_eap_request_identity(void *eloop_ctx, void *timeout_ctx)
 472 {
 473         struct wpa_supplicant *wpa_s = eloop_ctx;
 474         u8 buf[100], *pos;
 475         struct ieee802_1x_hdr *hdr;
 476         struct eap_hdr *eap;
 477
 478         hdr = (struct ieee802_1x_hdr *) buf;
 479         hdr->version = EAPOL_VERSION;
 480         hdr->type = IEEE802_1X_TYPE_EAP_PACKET;
 481         hdr->length = htons(5);
 482
 483         eap = (struct eap_hdr *) (hdr + 1);
 484         eap->code = EAP_CODE_REQUEST;
 485         eap->identifier = 0;
 486         eap->length = htons(5);
 487         pos = (u8 *) (eap + 1);
 488         *pos = EAP_TYPE_IDENTITY;
 489
 490         printf("Sending fake EAP-Request-Identity\n");
 491         eapol_sm_rx_eapol(wpa_s->eapol, wpa_s->bssid, buf,
 492                           sizeof(*hdr) + 5);
 493 }
 494
 495
 496 static void eapol_test_timeout(void *eloop_ctx, void *timeout_ctx)
 497 {
 498         struct eapol_test_data *e = eloop_ctx;
 499         printf("EAPOL test timed out\n");
 500         e->auth_timed_out = 1;
 501         eloop_terminate();
 502 }
 503
 504
 505 static char *eap_type_text(u8 type)
 506 {
 507         switch (type) {
 508         case EAP_TYPE_IDENTITY: return "Identity";
 509         case EAP_TYPE_NOTIFICATION: return "Notification";
 510         case EAP_TYPE_NAK: return "Nak";
 511         case EAP_TYPE_TLS: return "TLS";
 512         case EAP_TYPE_TTLS: return "TTLS";
 513         case EAP_TYPE_PEAP: return "PEAP";
 514         case EAP_TYPE_SIM: return "SIM";
 515         case EAP_TYPE_GTC: return "GTC";
 516         case EAP_TYPE_MD5: return "MD5";
 517         case EAP_TYPE_OTP: return "OTP";
 518         case EAP_TYPE_FAST: return "FAST";
 519         case EAP_TYPE_SAKE: return "SAKE";
 520         case EAP_TYPE_PSK: return "PSK";
 521         default: return "Unknown";
 522         }
 523 }
 524
 525
 526 static void ieee802_1x_decapsulate_radius(struct eapol_test_data *e)
 527 {
 528         u8 *eap;
 529         size_t len;
 530         struct eap_hdr *hdr;
 531         int eap_type = -1;
 532         char buf[64];
 533         struct radius_msg *msg;
 534
 535         if (e->last_recv_radius == NULL)
 536                 return;
 537
 538         msg = e->last_recv_radius;
 539
 540         eap = radius_msg_get_eap(msg, &len);
 541         if (eap == NULL) {
 542                 /* draft-aboba-radius-rfc2869bis-20.txt, Chap. 2.6.3:
 543                  * RADIUS server SHOULD NOT send Access-Reject/no EAP-Message
 544                  * attribute */
 545                 wpa_printf(MSG_DEBUG, "could not extract "
 546                                "EAP-Message from RADIUS message");
 547                 os_free(e->last_eap_radius);
 548                 e->last_eap_radius = NULL;
 549                 e->last_eap_radius_len = 0;
 550                 return;
 551         }
 552
 553         if (len < sizeof(*hdr)) {
 554                 wpa_printf(MSG_DEBUG, "too short EAP packet "
 555                                "received from authentication server");
 556                 os_free(eap);
 557                 return;
 558         }
 559
 560         if (len > sizeof(*hdr))
 561                 eap_type = eap[sizeof(*hdr)];
 562
 563         hdr = (struct eap_hdr *) eap;
 564         switch (hdr->code) {
 565         case EAP_CODE_REQUEST:
 566                 os_snprintf(buf, sizeof(buf), "EAP-Request-%s (%d)",
 567                             eap_type >= 0 ? eap_type_text(eap_type) : "??",
 568                             eap_type);
 569                 break;
 570         case EAP_CODE_RESPONSE:
 571                 os_snprintf(buf, sizeof(buf), "EAP Response-%s (%d)",
 572                             eap_type >= 0 ? eap_type_text(eap_type) : "??",
 573                             eap_type);
 574                 break;
 575         case EAP_CODE_SUCCESS:
 576                 os_strlcpy(buf, "EAP Success", sizeof(buf));
 577                 /* LEAP uses EAP Success within an authentication, so must not
 578                  * stop here with eloop_terminate(); */
 579                 break;
 580         case EAP_CODE_FAILURE:
 581                 os_strlcpy(buf, "EAP Failure", sizeof(buf));
 582                 eloop_terminate();
 583                 break;
 584         default:
 585                 os_strlcpy(buf, "unknown EAP code", sizeof(buf));
 586                 wpa_hexdump(MSG_DEBUG, "Decapsulated EAP packet", eap, len);
 587                 break;
 588         }
 589         wpa_printf(MSG_DEBUG, "decapsulated EAP packet (code=%d "
 590                        "id=%d len=%d) from RADIUS server: %s",
 591                       hdr->code, hdr->identifier, ntohs(hdr->length), buf);
 592
 593         /* sta->eapol_sm->be_auth.idFromServer = hdr->identifier; */
 594
 595         os_free(e->last_eap_radius);
 596         e->last_eap_radius = eap;
 597         e->last_eap_radius_len = len;
 598
 599         {
 600                 struct ieee802_1x_hdr *dot1x;
 601                 dot1x = os_malloc(sizeof(*dot1x) + len);
 602                 assert(dot1x != NULL);
 603                 dot1x->version = EAPOL_VERSION;
 604                 dot1x->type = IEEE802_1X_TYPE_EAP_PACKET;
 605                 dot1x->length = htons(len);
 606                 os_memcpy((u8 *) (dot1x + 1), eap, len);
 607                 eapol_sm_rx_eapol(e->wpa_s->eapol, e->wpa_s->bssid,
 608                                   (u8 *) dot1x, sizeof(*dot1x) + len);
 609                 os_free(dot1x);
 610         }
 611 }
 612
 613
 614 static void ieee802_1x_get_keys(struct eapol_test_data *e,
 615                                 struct radius_msg *msg, struct radius_msg *req,
 616                                 const u8 *shared_secret,
 617                                 size_t shared_secret_len)
 618 {
 619         struct radius_ms_mppe_keys *keys;
 620
 621         keys = radius_msg_get_ms_keys(msg, req, shared_secret,
 622                                       shared_secret_len);
 623         if (keys && keys->send == NULL && keys->recv == NULL) {
 624                 os_free(keys);
 625                 keys = radius_msg_get_cisco_keys(msg, req, shared_secret,
 626                                                  shared_secret_len);
 627         }
 628
 629         if (keys) {
 630                 if (keys->send) {
 631                         wpa_hexdump(MSG_DEBUG, "MS-MPPE-Send-Key (sign)",
 632                                     keys->send, keys->send_len);
 633                 }
 634                 if (keys->recv) {
 635                         wpa_hexdump(MSG_DEBUG, "MS-MPPE-Recv-Key (crypt)",
 636                                     keys->recv, keys->recv_len);
 637                         e->authenticator_pmk_len =
 638                                 keys->recv_len > PMK_LEN ? PMK_LEN :
 639                                 keys->recv_len;
 640                         os_memcpy(e->authenticator_pmk, keys->recv,
 641                                   e->authenticator_pmk_len);
 642                         if (e->authenticator_pmk_len == 16 && keys->send &&
 643                             keys->send_len == 16) {
 644                                 /* MS-CHAP-v2 derives 16 octet keys */
 645                                 wpa_printf(MSG_DEBUG, "Use MS-MPPE-Send-Key "
 646                                            "to extend PMK to 32 octets");
 647                                 os_memcpy(e->authenticator_pmk +
 648                                           e->authenticator_pmk_len,
 649                                           keys->send, keys->send_len);
 650                                 e->authenticator_pmk_len += keys->send_len;
 651                         }
 652                 }
 653
 654                 os_free(keys->send);
 655                 os_free(keys->recv);
 656                 os_free(keys);
 657         }
 658 }
 659
 660
 661 /* Process the RADIUS frames from Authentication Server */
 662 static RadiusRxResult
 663 ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req,
 664                         const u8 *shared_secret, size_t shared_secret_len,
 665                         void *data)
 666 {
 667         struct eapol_test_data *e = data;
 668         struct radius_hdr *hdr = radius_msg_get_hdr(msg);
 669
 670         /* RFC 2869, Ch. 5.13: valid Message-Authenticator attribute MUST be
 671          * present when packet contains an EAP-Message attribute */
 672         if (hdr->code == RADIUS_CODE_ACCESS_REJECT &&
 673             radius_msg_get_attr(msg, RADIUS_ATTR_MESSAGE_AUTHENTICATOR, NULL,
 674                                 0) < 0 &&
 675             radius_msg_get_attr(msg, RADIUS_ATTR_EAP_MESSAGE, NULL, 0) < 0) {
 676                 wpa_printf(MSG_DEBUG, "Allowing RADIUS "
 677                               "Access-Reject without Message-Authenticator "
 678                               "since it does not include EAP-Message\n");
 679         } else if (radius_msg_verify(msg, shared_secret, shared_secret_len,
 680                                      req, 1)) {
 681                 printf("Incoming RADIUS packet did not have correct "
 682                        "Message-Authenticator - dropped\n");
 683                 return RADIUS_RX_UNKNOWN;
 684         }
 685
 686         if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
 687             hdr->code != RADIUS_CODE_ACCESS_REJECT &&
 688             hdr->code != RADIUS_CODE_ACCESS_CHALLENGE) {
 689                 printf("Unknown RADIUS message code\n");
 690                 return RADIUS_RX_UNKNOWN;
 691         }
 692
 693         e->radius_identifier = -1;
 694         wpa_printf(MSG_DEBUG, "RADIUS packet matching with station");
 695
 696         radius_msg_free(e->last_recv_radius);
 697         e->last_recv_radius = msg;
 698
 699         switch (hdr->code) {
 700         case RADIUS_CODE_ACCESS_ACCEPT:
 701                 e->radius_access_accept_received = 1;
 702                 ieee802_1x_get_keys(e, msg, req, shared_secret,
 703                                     shared_secret_len);
 704                 break;
 705         case RADIUS_CODE_ACCESS_REJECT:
 706                 e->radius_access_reject_received = 1;
 707                 break;
 708         }
 709
 710         ieee802_1x_decapsulate_radius(e);
 711
 712         if ((hdr->code == RADIUS_CODE_ACCESS_ACCEPT &&
 713              e->eapol_test_num_reauths < 0) ||
 714             hdr->code == RADIUS_CODE_ACCESS_REJECT) {
 715                 eloop_terminate();
 716         }
 717
 718         return RADIUS_RX_QUEUED;
 719 }
 720
 721
 722 static void wpa_init_conf(struct eapol_test_data *e,
 723                           struct wpa_supplicant *wpa_s, const char *authsrv,
 724                           int port, const char *secret,
 725                           const char *cli_addr)
 726 {
 727         struct hostapd_radius_server *as;
 728         int res;
 729
 730         wpa_s->bssid[5] = 1;
 731         os_memcpy(wpa_s->own_addr, e->own_addr, ETH_ALEN);
 732         e->own_ip_addr.s_addr = htonl((127 << 24) | 1);
 733         os_strlcpy(wpa_s->ifname, "test", sizeof(wpa_s->ifname));
 734
 735         e->radius_conf = os_zalloc(sizeof(struct hostapd_radius_servers));
 736         assert(e->radius_conf != NULL);
 737         e->radius_conf->num_auth_servers = 1;
 738         as = os_zalloc(sizeof(struct hostapd_radius_server));
 739         assert(as != NULL);
 740 #if defined(CONFIG_NATIVE_WINDOWS) || defined(CONFIG_ANSI_C_EXTRA)
 741         {
 742                 int a[4];
 743                 u8 *pos;
 744                 sscanf(authsrv, "%d.%d.%d.%d", &a[0], &a[1], &a[2], &a[3]);
 745                 pos = (u8 *) &as->addr.u.v4;
 746                 *pos++ = a[0];
 747                 *pos++ = a[1];
 748                 *pos++ = a[2];
 749                 *pos++ = a[3];
 750         }
 751 #else /* CONFIG_NATIVE_WINDOWS or CONFIG_ANSI_C_EXTRA */
 752         inet_aton(authsrv, &as->addr.u.v4);
 753 #endif /* CONFIG_NATIVE_WINDOWS or CONFIG_ANSI_C_EXTRA */
 754         as->addr.af = AF_INET;
 755         as->port = port;
 756         as->shared_secret = (u8 *) os_strdup(secret);
 757         as->shared_secret_len = os_strlen(secret);
 758         e->radius_conf->auth_server = as;
 759         e->radius_conf->auth_servers = as;
 760         e->radius_conf->msg_dumps = 1;
 761         if (cli_addr) {
 762                 if (hostapd_parse_ip_addr(cli_addr,
 763                                           &e->radius_conf->client_addr) == 0)
 764                         e->radius_conf->force_client_addr = 1;
 765                 else {
 766                         wpa_printf(MSG_ERROR, "Invalid IP address '%s'",
 767                                    cli_addr);
 768                         assert(0);
 769                 }
 770         }
 771
 772         e->radius = radius_client_init(wpa_s, e->radius_conf);
 773         assert(e->radius != NULL);
 774
 775         res = radius_client_register(e->radius, RADIUS_AUTH,
 776                                      ieee802_1x_receive_auth, e);
 777         assert(res == 0);
 778 }
 779
 780
 781 static int scard_test(void)
 782 {
 783         struct scard_data *scard;
 784         size_t len;
 785         char imsi[20];
 786         unsigned char _rand[16];
 787 #ifdef PCSC_FUNCS
 788         unsigned char sres[4];
 789         unsigned char kc[8];
 790 #endif /* PCSC_FUNCS */
 791 #define num_triplets 5
 792         unsigned char rand_[num_triplets][16];
 793         unsigned char sres_[num_triplets][4];
 794         unsigned char kc_[num_triplets][8];
 795         int i, res;
 796         size_t j;
 797
 798 #define AKA_RAND_LEN 16
 799 #define AKA_AUTN_LEN 16
 800 #define AKA_AUTS_LEN 14
 801 #define RES_MAX_LEN 16
 802 #define IK_LEN 16
 803 #define CK_LEN 16
 804         unsigned char aka_rand[AKA_RAND_LEN];
 805         unsigned char aka_autn[AKA_AUTN_LEN];
 806         unsigned char aka_auts[AKA_AUTS_LEN];
 807         unsigned char aka_res[RES_MAX_LEN];
 808         size_t aka_res_len;
 809         unsigned char aka_ik[IK_LEN];
 810         unsigned char aka_ck[CK_LEN];
 811
 812         scard = scard_init(SCARD_TRY_BOTH);
 813         if (scard == NULL)
 814                 return -1;
 815         if (scard_set_pin(scard, "1234")) {
 816                 wpa_printf(MSG_WARNING, "PIN validation failed");
 817                 scard_deinit(scard);
 818                 return -1;
 819         }
 820
 821         len = sizeof(imsi);
 822         if (scard_get_imsi(scard, imsi, &len))
 823                 goto failed;
 824         wpa_hexdump_ascii(MSG_DEBUG, "SCARD: IMSI", (u8 *) imsi, len);
 825         /* NOTE: Permanent Username: 1 | IMSI */
 826
 827         os_memset(_rand, 0, sizeof(_rand));
 828         if (scard_gsm_auth(scard, _rand, sres, kc))
 829                 goto failed;
 830
 831         os_memset(_rand, 0xff, sizeof(_rand));
 832         if (scard_gsm_auth(scard, _rand, sres, kc))
 833                 goto failed;
 834
 835         for (i = 0; i < num_triplets; i++) {
 836                 os_memset(rand_[i], i, sizeof(rand_[i]));
 837                 if (scard_gsm_auth(scard, rand_[i], sres_[i], kc_[i]))
 838                         goto failed;
 839         }
 840
 841         for (i = 0; i < num_triplets; i++) {
 842                 printf("1");
 843                 for (j = 0; j < len; j++)
 844                         printf("%c", imsi[j]);
 845                 printf(",");
 846                 for (j = 0; j < 16; j++)
 847                         printf("%02X", rand_[i][j]);
 848                 printf(",");
 849                 for (j = 0; j < 4; j++)
 850                         printf("%02X", sres_[i][j]);
 851                 printf(",");
 852                 for (j = 0; j < 8; j++)
 853                         printf("%02X", kc_[i][j]);
 854                 printf("\n");
 855         }
 856
 857         wpa_printf(MSG_DEBUG, "Trying to use UMTS authentication");
 858
 859         /* seq 39 (0x28) */
 860         os_memset(aka_rand, 0xaa, 16);
 861         os_memcpy(aka_autn, "\x86\x71\x31\xcb\xa2\xfc\x61\xdf"
 862                   "\xa3\xb3\x97\x9d\x07\x32\xa2\x12", 16);
 863
 864         res = scard_umts_auth(scard, aka_rand, aka_autn, aka_res, &aka_res_len,
 865                               aka_ik, aka_ck, aka_auts);
 866         if (res == 0) {
 867                 wpa_printf(MSG_DEBUG, "UMTS auth completed successfully");
 868                 wpa_hexdump(MSG_DEBUG, "RES", aka_res, aka_res_len);
 869                 wpa_hexdump(MSG_DEBUG, "IK", aka_ik, IK_LEN);
 870                 wpa_hexdump(MSG_DEBUG, "CK", aka_ck, CK_LEN);
 871         } else if (res == -2) {
 872                 wpa_printf(MSG_DEBUG, "UMTS auth resulted in synchronization "
 873                            "failure");
 874                 wpa_hexdump(MSG_DEBUG, "AUTS", aka_auts, AKA_AUTS_LEN);
 875         } else {
 876                 wpa_printf(MSG_DEBUG, "UMTS auth failed");
 877         }
 878
 879 failed:
 880         scard_deinit(scard);
 881
 882         return 0;
 883 #undef num_triplets
 884 }
 885
 886
 887 static int scard_get_triplets(int argc, char *argv[])
 888 {
 889         struct scard_data *scard;
 890         size_t len;
 891         char imsi[20];
 892         unsigned char _rand[16];
 893         unsigned char sres[4];
 894         unsigned char kc[8];
 895         int num_triplets;
 896         int i;
 897         size_t j;
 898
 899         if (argc < 2 || ((num_triplets = atoi(argv[1])) <= 0)) {
 900                 printf("invalid parameters for sim command\n");
 901                 return -1;
 902         }
 903
 904         if (argc <= 2 || os_strcmp(argv[2], "debug") != 0) {
 905                 /* disable debug output */
 906                 wpa_debug_level = 99;
 907         }
 908
 909         scard = scard_init(SCARD_GSM_SIM_ONLY);
 910         if (scard == NULL) {
 911                 printf("Failed to open smartcard connection\n");
 912                 return -1;
 913         }
 914         if (scard_set_pin(scard, argv[0])) {
 915                 wpa_printf(MSG_WARNING, "PIN validation failed");
 916                 scard_deinit(scard);
 917                 return -1;
 918         }
 919
 920         len = sizeof(imsi);
 921         if (scard_get_imsi(scard, imsi, &len)) {
 922                 scard_deinit(scard);
 923                 return -1;
 924         }
 925
 926         for (i = 0; i < num_triplets; i++) {
 927                 os_memset(_rand, i, sizeof(_rand));
 928                 if (scard_gsm_auth(scard, _rand, sres, kc))
 929                         break;
 930
 931                 /* IMSI:Kc:SRES:RAND */
 932                 for (j = 0; j < len; j++)
 933                         printf("%c", imsi[j]);
 934                 printf(":");
 935                 for (j = 0; j < 8; j++)
 936                         printf("%02X", kc[j]);
 937                 printf(":");
 938                 for (j = 0; j < 4; j++)
 939                         printf("%02X", sres[j]);
 940                 printf(":");
 941                 for (j = 0; j < 16; j++)
 942                         printf("%02X", _rand[j]);
 943                 printf("\n");
 944         }
 945
 946         scard_deinit(scard);
 947
 948         return 0;
 949 }
 950
 951
 952 static void eapol_test_terminate(int sig, void *signal_ctx)
 953 {
 954         struct wpa_supplicant *wpa_s = signal_ctx;
 955         wpa_msg(wpa_s, MSG_INFO, "Signal %d received - terminating", sig);
 956         eloop_terminate();
 957 }
 958
 959
 960 static void usage(void)
 961 {
 962         printf("usage:\n"
 963                "eapol_test [-nWS] -c<conf> [-a<AS IP>] [-p<AS port>] "
 964                "[-s<AS secret>]\\\n"
 965                "           [-r<count>] [-t<timeout>] [-C<Connect-Info>] \\\n"
 966                "           [-M<client MAC address>] \\\n"
 967                "           [-N<attr spec>] \\\n"
 968                "           [-A<client IP>]\n"
 969                "eapol_test scard\n"
 970                "eapol_test sim <PIN> <num triplets> [debug]\n"
 971                "\n");
 972         printf("options:\n"
 973                "  -c<conf> = configuration file\n"
 974                "  -a<AS IP> = IP address of the authentication server, "
 975                "default 127.0.0.1\n"
 976                "  -p<AS port> = UDP port of the authentication server, "
 977                "default 1812\n"
 978                "  -s<AS secret> = shared secret with the authentication "
 979                "server, default 'radius'\n"
 980                "  -A<client IP> = IP address of the client, default: select "
 981                "automatically\n"
 982                "  -r<count> = number of re-authentications\n"
 983                "  -W = wait for a control interface monitor before starting\n"
 984                "  -S = save configuration after authentication\n"
 985                "  -n = no MPPE keys expected\n"
 986                "  -t<timeout> = sets timeout in seconds (default: 30 s)\n"
 987                "  -C<Connect-Info> = RADIUS Connect-Info (default: "
 988                "CONNECT 11Mbps 802.11b)\n"
 989                "  -M<client MAC address> = Set own MAC address "
 990                "(Calling-Station-Id,\n"
 991                "                           default: 02:00:00:00:00:01)\n"
 992                "  -N<attr spec> = send arbitrary attribute specified by:\n"
 993                "                  attr_id:syntax:value or attr_id\n"
 994                "                  attr_id - number id of the attribute\n"
 995                "                  syntax - one of: s, d, x\n"
 996                "                     s = string\n"
 997                "                     d = integer\n"
 998                "                     x = octet string\n"
 999                "                  value - attribute value.\n"
1000                "       When only attr_id is specified, NULL will be used as "
1001                "value.\n"
1002                "       Multiple attributes can be specified by using the "
1003                "option several times.\n");
1004 }
1005
1006
1007 int main(int argc, char *argv[])
1008 {
1009         struct wpa_supplicant wpa_s;
1010         int c, ret = 1, wait_for_monitor = 0, save_config = 0;
1011         char *as_addr = "127.0.0.1";
1012         int as_port = 1812;
1013         char *as_secret = "radius";
1014         char *cli_addr = NULL;
1015         char *conf = NULL;
1016         int timeout = 30;
1017         char *pos;
1018         struct extra_radius_attr *p = NULL, *p1;
1019
1020         if (os_program_init())
1021                 return -1;
1022
1023         hostapd_logger_register_cb(hostapd_logger_cb);
1024
1025         os_memset(&eapol_test, 0, sizeof(eapol_test));
1026         eapol_test.connect_info = "CONNECT 11Mbps 802.11b";
1027         os_memcpy(eapol_test.own_addr, "\x02\x00\x00\x00\x00\x01", ETH_ALEN);
1028
1029         wpa_debug_level = 0;
1030         wpa_debug_show_keys = 1;
1031
1032         for (;;) {
1033                 c = getopt(argc, argv, "a:A:c:C:M:nN:p:r:s:St:W");
1034                 if (c < 0)
1035                         break;
1036                 switch (c) {
1037                 case 'a':
1038                         as_addr = optarg;
1039                         break;
1040                 case 'A':
1041                         cli_addr = optarg;
1042                         break;
1043                 case 'c':
1044                         conf = optarg;
1045                         break;
1046                 case 'C':
1047                         eapol_test.connect_info = optarg;
1048                         break;
1049                 case 'M':
1050                         if (hwaddr_aton(optarg, eapol_test.own_addr)) {
1051                                 usage();
1052                                 return -1;
1053                         }
1054                         break;
1055                 case 'n':
1056                         eapol_test.no_mppe_keys++;
1057                         break;
1058                 case 'p':
1059                         as_port = atoi(optarg);
1060                         break;
1061                 case 'r':
1062                         eapol_test.eapol_test_num_reauths = atoi(optarg);
1063                         break;
1064                 case 's':
1065                         as_secret = optarg;
1066                         break;
1067                 case 'S':
1068                         save_config++;
1069                         break;
1070                 case 't':
1071                         timeout = atoi(optarg);
1072                         break;
1073                 case 'W':
1074                         wait_for_monitor++;
1075                         break;
1076                 case 'N':
1077                         p1 = os_zalloc(sizeof(p1));
1078                         if (p1 == NULL)
1079                                 break;
1080                         if (!p)
1081                                 eapol_test.extra_attrs = p1;
1082                         else
1083                                 p->next = p1;
1084                         p = p1;
1085
1086                         p->type = atoi(optarg);
1087                         pos = os_strchr(optarg, ':');
1088                         if (pos == NULL) {
1089                                 p->syntax = 'n';
1090                                 p->data = NULL;
1091                                 break;
1092                         }
1093
1094                         pos++;
1095                         if (pos[0] == '\0' || pos[1] != ':') {
1096                                 printf("Incorrect format of attribute "
1097                                        "specification\n");
1098                                 break;
1099                         }
1100
1101                         p->syntax = pos[0];
1102                         p->data = pos + 2;
1103                         break;
1104                 default:
1105                         usage();
1106                         return -1;
1107                 }
1108         }
1109
1110         if (argc > optind && os_strcmp(argv[optind], "scard") == 0) {
1111                 return scard_test();
1112         }
1113
1114         if (argc > optind && os_strcmp(argv[optind], "sim") == 0) {
1115                 return scard_get_triplets(argc - optind - 1,
1116                                           &argv[optind + 1]);
1117         }
1118
1119         if (conf == NULL) {
1120                 usage();
1121                 printf("Configuration file is required.\n");
1122                 return -1;
1123         }
1124
1125         if (eap_register_methods()) {
1126                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
1127                 return -1;
1128         }
1129
1130         if (eloop_init()) {
1131                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
1132                 return -1;
1133         }
1134
1135         os_memset(&wpa_s, 0, sizeof(wpa_s));
1136         eapol_test.wpa_s = &wpa_s;
1137         wpa_s.conf = wpa_config_read(conf);
1138         if (wpa_s.conf == NULL) {
1139                 printf("Failed to parse configuration file '%s'.\n", conf);
1140                 return -1;
1141         }
1142         if (wpa_s.conf->ssid == NULL) {
1143                 printf("No networks defined.\n");
1144                 return -1;
1145         }
1146
1147         wpa_init_conf(&eapol_test, &wpa_s, as_addr, as_port, as_secret,
1148                       cli_addr);
1149         wpa_s.ctrl_iface = wpa_supplicant_ctrl_iface_init(&wpa_s);
1150         if (wpa_s.ctrl_iface == NULL) {
1151                 printf("Failed to initialize control interface '%s'.\n"
1152                        "You may have another eapol_test process already "
1153                        "running or the file was\n"
1154                        "left by an unclean termination of eapol_test in "
1155                        "which case you will need\n"
1156                        "to manually remove this file before starting "
1157                        "eapol_test again.\n",
1158                        wpa_s.conf->ctrl_interface);
1159                 return -1;
1160         }
1161         if (wpa_supplicant_scard_init(&wpa_s, wpa_s.conf->ssid))
1162                 return -1;
1163
1164         if (test_eapol(&eapol_test, &wpa_s, wpa_s.conf->ssid))
1165                 return -1;
1166
1167         if (wait_for_monitor)
1168                 wpa_supplicant_ctrl_iface_wait(wpa_s.ctrl_iface);
1169
1170         eloop_register_timeout(timeout, 0, eapol_test_timeout, &eapol_test,
1171                                NULL);
1172         eloop_register_timeout(0, 0, send_eap_request_identity, &wpa_s, NULL);
1173         eloop_register_signal_terminate(eapol_test_terminate, &wpa_s);
1174         eloop_register_signal_reconfig(eapol_test_terminate, &wpa_s);
1175         eloop_run();
1176
1177         eloop_cancel_timeout(eapol_test_timeout, &eapol_test, NULL);
1178         eloop_cancel_timeout(eapol_sm_reauth, &eapol_test, NULL);
1179
1180         if (eapol_test_compare_pmk(&eapol_test) == 0 ||
1181             eapol_test.no_mppe_keys)
1182                 ret = 0;
1183         if (eapol_test.auth_timed_out)
1184                 ret = -2;
1185         if (eapol_test.radius_access_reject_received)
1186                 ret = -3;
1187
1188         if (save_config)
1189                 wpa_config_write(conf, wpa_s.conf);
1190
1191         test_eapol_clean(&eapol_test, &wpa_s);
1192
1193         eap_peer_unregister_methods();
1194
1195         eloop_destroy();
1196
1197         printf("MPPE keys OK: %d  mismatch: %d\n",
1198                eapol_test.num_mppe_ok, eapol_test.num_mppe_mismatch);
1199         if (eapol_test.num_mppe_mismatch)
1200                 ret = -4;
1201         if (ret)
1202                 printf("FAILURE\n");
1203         else
1204                 printf("SUCCESS\n");
1205
1206         os_program_deinit();
1207
1208         return ret;
1209 }