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 && e->last_recv_radius->hdr->code ==
 267             RADIUS_CODE_ACCESS_CHALLENGE) {
 268                 int res = radius_msg_copy_attr(msg, e->last_recv_radius,
 269                                                RADIUS_ATTR_STATE);
 270                 if (res < 0) {
 271                         printf("Could not copy State attribute from previous "
 272                                "Access-Challenge\n");
 273                         goto fail;
 274                 }
 275                 if (res > 0) {
 276                         wpa_printf(MSG_DEBUG, "  Copied RADIUS State "
 277                                    "Attribute");
 278                 }
 279         }
 280
 281         radius_client_send(e->radius, msg, RADIUS_AUTH, e->wpa_s->own_addr);
 282         return;
 283
 284  fail:
 285         radius_msg_free(msg);
 286         os_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         if (e->last_recv_radius) {
 444                 radius_msg_free(e->last_recv_radius);
 445                 os_free(e->last_recv_radius);
 446         }
 447         os_free(e->eap_identity);
 448         e->eap_identity = NULL;
 449         eapol_sm_deinit(wpa_s->eapol);
 450         wpa_s->eapol = NULL;
 451         if (e->radius_conf && e->radius_conf->auth_server) {
 452                 os_free(e->radius_conf->auth_server->shared_secret);
 453                 os_free(e->radius_conf->auth_server);
 454         }
 455         os_free(e->radius_conf);
 456         e->radius_conf = NULL;
 457         scard_deinit(wpa_s->scard);
 458         if (wpa_s->ctrl_iface) {
 459                 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
 460                 wpa_s->ctrl_iface = NULL;
 461         }
 462         wpa_config_free(wpa_s->conf);
 463
 464         p = e->extra_attrs;
 465         while (p) {
 466                 prev = p;
 467                 p = p->next;
 468                 os_free(prev);
 469         }
 470 }
 471
 472
 473 static void send_eap_request_identity(void *eloop_ctx, void *timeout_ctx)
 474 {
 475         struct wpa_supplicant *wpa_s = eloop_ctx;
 476         u8 buf[100], *pos;
 477         struct ieee802_1x_hdr *hdr;
 478         struct eap_hdr *eap;
 479
 480         hdr = (struct ieee802_1x_hdr *) buf;
 481         hdr->version = EAPOL_VERSION;
 482         hdr->type = IEEE802_1X_TYPE_EAP_PACKET;
 483         hdr->length = htons(5);
 484
 485         eap = (struct eap_hdr *) (hdr + 1);
 486         eap->code = EAP_CODE_REQUEST;
 487         eap->identifier = 0;
 488         eap->length = htons(5);
 489         pos = (u8 *) (eap + 1);
 490         *pos = EAP_TYPE_IDENTITY;
 491
 492         printf("Sending fake EAP-Request-Identity\n");
 493         eapol_sm_rx_eapol(wpa_s->eapol, wpa_s->bssid, buf,
 494                           sizeof(*hdr) + 5);
 495 }
 496
 497
 498 static void eapol_test_timeout(void *eloop_ctx, void *timeout_ctx)
 499 {
 500         struct eapol_test_data *e = eloop_ctx;
 501         printf("EAPOL test timed out\n");
 502         e->auth_timed_out = 1;
 503         eloop_terminate();
 504 }
 505
 506
 507 static char *eap_type_text(u8 type)
 508 {
 509         switch (type) {
 510         case EAP_TYPE_IDENTITY: return "Identity";
 511         case EAP_TYPE_NOTIFICATION: return "Notification";
 512         case EAP_TYPE_NAK: return "Nak";
 513         case EAP_TYPE_TLS: return "TLS";
 514         case EAP_TYPE_TTLS: return "TTLS";
 515         case EAP_TYPE_PEAP: return "PEAP";
 516         case EAP_TYPE_SIM: return "SIM";
 517         case EAP_TYPE_GTC: return "GTC";
 518         case EAP_TYPE_MD5: return "MD5";
 519         case EAP_TYPE_OTP: return "OTP";
 520         case EAP_TYPE_FAST: return "FAST";
 521         case EAP_TYPE_SAKE: return "SAKE";
 522         case EAP_TYPE_PSK: return "PSK";
 523         default: return "Unknown";
 524         }
 525 }
 526
 527
 528 static void ieee802_1x_decapsulate_radius(struct eapol_test_data *e)
 529 {
 530         u8 *eap;
 531         size_t len;
 532         struct eap_hdr *hdr;
 533         int eap_type = -1;
 534         char buf[64];
 535         struct radius_msg *msg;
 536
 537         if (e->last_recv_radius == NULL)
 538                 return;
 539
 540         msg = e->last_recv_radius;
 541
 542         eap = radius_msg_get_eap(msg, &len);
 543         if (eap == NULL) {
 544                 /* draft-aboba-radius-rfc2869bis-20.txt, Chap. 2.6.3:
 545                  * RADIUS server SHOULD NOT send Access-Reject/no EAP-Message
 546                  * attribute */
 547                 wpa_printf(MSG_DEBUG, "could not extract "
 548                                "EAP-Message from RADIUS message");
 549                 os_free(e->last_eap_radius);
 550                 e->last_eap_radius = NULL;
 551                 e->last_eap_radius_len = 0;
 552                 return;
 553         }
 554
 555         if (len < sizeof(*hdr)) {
 556                 wpa_printf(MSG_DEBUG, "too short EAP packet "
 557                                "received from authentication server");
 558                 os_free(eap);
 559                 return;
 560         }
 561
 562         if (len > sizeof(*hdr))
 563                 eap_type = eap[sizeof(*hdr)];
 564
 565         hdr = (struct eap_hdr *) eap;
 566         switch (hdr->code) {
 567         case EAP_CODE_REQUEST:
 568                 os_snprintf(buf, sizeof(buf), "EAP-Request-%s (%d)",
 569                             eap_type >= 0 ? eap_type_text(eap_type) : "??",
 570                             eap_type);
 571                 break;
 572         case EAP_CODE_RESPONSE:
 573                 os_snprintf(buf, sizeof(buf), "EAP Response-%s (%d)",
 574                             eap_type >= 0 ? eap_type_text(eap_type) : "??",
 575                             eap_type);
 576                 break;
 577         case EAP_CODE_SUCCESS:
 578                 os_strlcpy(buf, "EAP Success", sizeof(buf));
 579                 /* LEAP uses EAP Success within an authentication, so must not
 580                  * stop here with eloop_terminate(); */
 581                 break;
 582         case EAP_CODE_FAILURE:
 583                 os_strlcpy(buf, "EAP Failure", sizeof(buf));
 584                 eloop_terminate();
 585                 break;
 586         default:
 587                 os_strlcpy(buf, "unknown EAP code", sizeof(buf));
 588                 wpa_hexdump(MSG_DEBUG, "Decapsulated EAP packet", eap, len);
 589                 break;
 590         }
 591         wpa_printf(MSG_DEBUG, "decapsulated EAP packet (code=%d "
 592                        "id=%d len=%d) from RADIUS server: %s",
 593                       hdr->code, hdr->identifier, ntohs(hdr->length), buf);
 594
 595         /* sta->eapol_sm->be_auth.idFromServer = hdr->identifier; */
 596
 597         os_free(e->last_eap_radius);
 598         e->last_eap_radius = eap;
 599         e->last_eap_radius_len = len;
 600
 601         {
 602                 struct ieee802_1x_hdr *dot1x;
 603                 dot1x = os_malloc(sizeof(*dot1x) + len);
 604                 assert(dot1x != NULL);
 605                 dot1x->version = EAPOL_VERSION;
 606                 dot1x->type = IEEE802_1X_TYPE_EAP_PACKET;
 607                 dot1x->length = htons(len);
 608                 os_memcpy((u8 *) (dot1x + 1), eap, len);
 609                 eapol_sm_rx_eapol(e->wpa_s->eapol, e->wpa_s->bssid,
 610                                   (u8 *) dot1x, sizeof(*dot1x) + len);
 611                 os_free(dot1x);
 612         }
 613 }
 614
 615
 616 static void ieee802_1x_get_keys(struct eapol_test_data *e,
 617                                 struct radius_msg *msg, struct radius_msg *req,
 618                                 const u8 *shared_secret,
 619                                 size_t shared_secret_len)
 620 {
 621         struct radius_ms_mppe_keys *keys;
 622
 623         keys = radius_msg_get_ms_keys(msg, req, shared_secret,
 624                                       shared_secret_len);
 625         if (keys && keys->send == NULL && keys->recv == NULL) {
 626                 os_free(keys);
 627                 keys = radius_msg_get_cisco_keys(msg, req, shared_secret,
 628                                                  shared_secret_len);
 629         }
 630
 631         if (keys) {
 632                 if (keys->send) {
 633                         wpa_hexdump(MSG_DEBUG, "MS-MPPE-Send-Key (sign)",
 634                                     keys->send, keys->send_len);
 635                 }
 636                 if (keys->recv) {
 637                         wpa_hexdump(MSG_DEBUG, "MS-MPPE-Recv-Key (crypt)",
 638                                     keys->recv, keys->recv_len);
 639                         e->authenticator_pmk_len =
 640                                 keys->recv_len > PMK_LEN ? PMK_LEN :
 641                                 keys->recv_len;
 642                         os_memcpy(e->authenticator_pmk, keys->recv,
 643                                   e->authenticator_pmk_len);
 644                         if (e->authenticator_pmk_len == 16 && keys->send &&
 645                             keys->send_len == 16) {
 646                                 /* MS-CHAP-v2 derives 16 octet keys */
 647                                 wpa_printf(MSG_DEBUG, "Use MS-MPPE-Send-Key "
 648                                            "to extend PMK to 32 octets");
 649                                 os_memcpy(e->authenticator_pmk +
 650                                           e->authenticator_pmk_len,
 651                                           keys->send, keys->send_len);
 652                                 e->authenticator_pmk_len += keys->send_len;
 653                         }
 654                 }
 655
 656                 os_free(keys->send);
 657                 os_free(keys->recv);
 658                 os_free(keys);
 659         }
 660 }
 661
 662
 663 /* Process the RADIUS frames from Authentication Server */
 664 static RadiusRxResult
 665 ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req,
 666                         const u8 *shared_secret, size_t shared_secret_len,
 667                         void *data)
 668 {
 669         struct eapol_test_data *e = data;
 670
 671         /* RFC 2869, Ch. 5.13: valid Message-Authenticator attribute MUST be
 672          * present when packet contains an EAP-Message attribute */
 673         if (msg->hdr->code == RADIUS_CODE_ACCESS_REJECT &&
 674             radius_msg_get_attr(msg, RADIUS_ATTR_MESSAGE_AUTHENTICATOR, NULL,
 675                                 0) < 0 &&
 676             radius_msg_get_attr(msg, RADIUS_ATTR_EAP_MESSAGE, NULL, 0) < 0) {
 677                 wpa_printf(MSG_DEBUG, "Allowing RADIUS "
 678                               "Access-Reject without Message-Authenticator "
 679                               "since it does not include EAP-Message\n");
 680         } else if (radius_msg_verify(msg, shared_secret, shared_secret_len,
 681                                      req, 1)) {
 682                 printf("Incoming RADIUS packet did not have correct "
 683                        "Message-Authenticator - dropped\n");
 684                 return RADIUS_RX_UNKNOWN;
 685         }
 686
 687         if (msg->hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
 688             msg->hdr->code != RADIUS_CODE_ACCESS_REJECT &&
 689             msg->hdr->code != RADIUS_CODE_ACCESS_CHALLENGE) {
 690                 printf("Unknown RADIUS message code\n");
 691                 return RADIUS_RX_UNKNOWN;
 692         }
 693
 694         e->radius_identifier = -1;
 695         wpa_printf(MSG_DEBUG, "RADIUS packet matching with station");
 696
 697         if (e->last_recv_radius) {
 698                 radius_msg_free(e->last_recv_radius);
 699                 os_free(e->last_recv_radius);
 700         }
 701
 702         e->last_recv_radius = msg;
 703
 704         switch (msg->hdr->code) {
 705         case RADIUS_CODE_ACCESS_ACCEPT:
 706                 e->radius_access_accept_received = 1;
 707                 ieee802_1x_get_keys(e, msg, req, shared_secret,
 708                                     shared_secret_len);
 709                 break;
 710         case RADIUS_CODE_ACCESS_REJECT:
 711                 e->radius_access_reject_received = 1;
 712                 break;
 713         }
 714
 715         ieee802_1x_decapsulate_radius(e);
 716
 717         if ((msg->hdr->code == RADIUS_CODE_ACCESS_ACCEPT &&
 718              e->eapol_test_num_reauths < 0) ||
 719             msg->hdr->code == RADIUS_CODE_ACCESS_REJECT) {
 720                 eloop_terminate();
 721         }
 722
 723         return RADIUS_RX_QUEUED;
 724 }
 725
 726
 727 static void wpa_init_conf(struct eapol_test_data *e,
 728                           struct wpa_supplicant *wpa_s, const char *authsrv,
 729                           int port, const char *secret,
 730                           const char *cli_addr)
 731 {
 732         struct hostapd_radius_server *as;
 733         int res;
 734
 735         wpa_s->bssid[5] = 1;
 736         os_memcpy(wpa_s->own_addr, e->own_addr, ETH_ALEN);
 737         e->own_ip_addr.s_addr = htonl((127 << 24) | 1);
 738         os_strlcpy(wpa_s->ifname, "test", sizeof(wpa_s->ifname));
 739
 740         e->radius_conf = os_zalloc(sizeof(struct hostapd_radius_servers));
 741         assert(e->radius_conf != NULL);
 742         e->radius_conf->num_auth_servers = 1;
 743         as = os_zalloc(sizeof(struct hostapd_radius_server));
 744         assert(as != NULL);
 745 #if defined(CONFIG_NATIVE_WINDOWS) || defined(CONFIG_ANSI_C_EXTRA)
 746         {
 747                 int a[4];
 748                 u8 *pos;
 749                 sscanf(authsrv, "%d.%d.%d.%d", &a[0], &a[1], &a[2], &a[3]);
 750                 pos = (u8 *) &as->addr.u.v4;
 751                 *pos++ = a[0];
 752                 *pos++ = a[1];
 753                 *pos++ = a[2];
 754                 *pos++ = a[3];
 755         }
 756 #else /* CONFIG_NATIVE_WINDOWS or CONFIG_ANSI_C_EXTRA */
 757         inet_aton(authsrv, &as->addr.u.v4);
 758 #endif /* CONFIG_NATIVE_WINDOWS or CONFIG_ANSI_C_EXTRA */
 759         as->addr.af = AF_INET;
 760         as->port = port;
 761         as->shared_secret = (u8 *) os_strdup(secret);
 762         as->shared_secret_len = os_strlen(secret);
 763         e->radius_conf->auth_server = as;
 764         e->radius_conf->auth_servers = as;
 765         e->radius_conf->msg_dumps = 1;
 766         if (cli_addr) {
 767                 if (hostapd_parse_ip_addr(cli_addr,
 768                                           &e->radius_conf->client_addr) == 0)
 769                         e->radius_conf->force_client_addr = 1;
 770                 else {
 771                         wpa_printf(MSG_ERROR, "Invalid IP address '%s'",
 772                                    cli_addr);
 773                         assert(0);
 774                 }
 775         }
 776
 777         e->radius = radius_client_init(wpa_s, e->radius_conf);
 778         assert(e->radius != NULL);
 779
 780         res = radius_client_register(e->radius, RADIUS_AUTH,
 781                                      ieee802_1x_receive_auth, e);
 782         assert(res == 0);
 783 }
 784
 785
 786 static int scard_test(void)
 787 {
 788         struct scard_data *scard;
 789         size_t len;
 790         char imsi[20];
 791         unsigned char _rand[16];
 792 #ifdef PCSC_FUNCS
 793         unsigned char sres[4];
 794         unsigned char kc[8];
 795 #endif /* PCSC_FUNCS */
 796 #define num_triplets 5
 797         unsigned char rand_[num_triplets][16];
 798         unsigned char sres_[num_triplets][4];
 799         unsigned char kc_[num_triplets][8];
 800         int i, res;
 801         size_t j;
 802
 803 #define AKA_RAND_LEN 16
 804 #define AKA_AUTN_LEN 16
 805 #define AKA_AUTS_LEN 14
 806 #define RES_MAX_LEN 16
 807 #define IK_LEN 16
 808 #define CK_LEN 16
 809         unsigned char aka_rand[AKA_RAND_LEN];
 810         unsigned char aka_autn[AKA_AUTN_LEN];
 811         unsigned char aka_auts[AKA_AUTS_LEN];
 812         unsigned char aka_res[RES_MAX_LEN];
 813         size_t aka_res_len;
 814         unsigned char aka_ik[IK_LEN];
 815         unsigned char aka_ck[CK_LEN];
 816
 817         scard = scard_init(SCARD_TRY_BOTH);
 818         if (scard == NULL)
 819                 return -1;
 820         if (scard_set_pin(scard, "1234")) {
 821                 wpa_printf(MSG_WARNING, "PIN validation failed");
 822                 scard_deinit(scard);
 823                 return -1;
 824         }
 825
 826         len = sizeof(imsi);
 827         if (scard_get_imsi(scard, imsi, &len))
 828                 goto failed;
 829         wpa_hexdump_ascii(MSG_DEBUG, "SCARD: IMSI", (u8 *) imsi, len);
 830         /* NOTE: Permanent Username: 1 | IMSI */
 831
 832         os_memset(_rand, 0, sizeof(_rand));
 833         if (scard_gsm_auth(scard, _rand, sres, kc))
 834                 goto failed;
 835
 836         os_memset(_rand, 0xff, sizeof(_rand));
 837         if (scard_gsm_auth(scard, _rand, sres, kc))
 838                 goto failed;
 839
 840         for (i = 0; i < num_triplets; i++) {
 841                 os_memset(rand_[i], i, sizeof(rand_[i]));
 842                 if (scard_gsm_auth(scard, rand_[i], sres_[i], kc_[i]))
 843                         goto failed;
 844         }
 845
 846         for (i = 0; i < num_triplets; i++) {
 847                 printf("1");
 848                 for (j = 0; j < len; j++)
 849                         printf("%c", imsi[j]);
 850                 printf(",");
 851                 for (j = 0; j < 16; j++)
 852                         printf("%02X", rand_[i][j]);
 853                 printf(",");
 854                 for (j = 0; j < 4; j++)
 855                         printf("%02X", sres_[i][j]);
 856                 printf(",");
 857                 for (j = 0; j < 8; j++)
 858                         printf("%02X", kc_[i][j]);
 859                 printf("\n");
 860         }
 861
 862         wpa_printf(MSG_DEBUG, "Trying to use UMTS authentication");
 863
 864         /* seq 39 (0x28) */
 865         os_memset(aka_rand, 0xaa, 16);
 866         os_memcpy(aka_autn, "\x86\x71\x31\xcb\xa2\xfc\x61\xdf"
 867                   "\xa3\xb3\x97\x9d\x07\x32\xa2\x12", 16);
 868
 869         res = scard_umts_auth(scard, aka_rand, aka_autn, aka_res, &aka_res_len,
 870                               aka_ik, aka_ck, aka_auts);
 871         if (res == 0) {
 872                 wpa_printf(MSG_DEBUG, "UMTS auth completed successfully");
 873                 wpa_hexdump(MSG_DEBUG, "RES", aka_res, aka_res_len);
 874                 wpa_hexdump(MSG_DEBUG, "IK", aka_ik, IK_LEN);
 875                 wpa_hexdump(MSG_DEBUG, "CK", aka_ck, CK_LEN);
 876         } else if (res == -2) {
 877                 wpa_printf(MSG_DEBUG, "UMTS auth resulted in synchronization "
 878                            "failure");
 879                 wpa_hexdump(MSG_DEBUG, "AUTS", aka_auts, AKA_AUTS_LEN);
 880         } else {
 881                 wpa_printf(MSG_DEBUG, "UMTS auth failed");
 882         }
 883
 884 failed:
 885         scard_deinit(scard);
 886
 887         return 0;
 888 #undef num_triplets
 889 }
 890
 891
 892 static int scard_get_triplets(int argc, char *argv[])
 893 {
 894         struct scard_data *scard;
 895         size_t len;
 896         char imsi[20];
 897         unsigned char _rand[16];
 898         unsigned char sres[4];
 899         unsigned char kc[8];
 900         int num_triplets;
 901         int i;
 902         size_t j;
 903
 904         if (argc < 2 || ((num_triplets = atoi(argv[1])) <= 0)) {
 905                 printf("invalid parameters for sim command\n");
 906                 return -1;
 907         }
 908
 909         if (argc <= 2 || os_strcmp(argv[2], "debug") != 0) {
 910                 /* disable debug output */
 911                 wpa_debug_level = 99;
 912         }
 913
 914         scard = scard_init(SCARD_GSM_SIM_ONLY);
 915         if (scard == NULL) {
 916                 printf("Failed to open smartcard connection\n");
 917                 return -1;
 918         }
 919         if (scard_set_pin(scard, argv[0])) {
 920                 wpa_printf(MSG_WARNING, "PIN validation failed");
 921                 scard_deinit(scard);
 922                 return -1;
 923         }
 924
 925         len = sizeof(imsi);
 926         if (scard_get_imsi(scard, imsi, &len)) {
 927                 scard_deinit(scard);
 928                 return -1;
 929         }
 930
 931         for (i = 0; i < num_triplets; i++) {
 932                 os_memset(_rand, i, sizeof(_rand));
 933                 if (scard_gsm_auth(scard, _rand, sres, kc))
 934                         break;
 935
 936                 /* IMSI:Kc:SRES:RAND */
 937                 for (j = 0; j < len; j++)
 938                         printf("%c", imsi[j]);
 939                 printf(":");
 940                 for (j = 0; j < 8; j++)
 941                         printf("%02X", kc[j]);
 942                 printf(":");
 943                 for (j = 0; j < 4; j++)
 944                         printf("%02X", sres[j]);
 945                 printf(":");
 946                 for (j = 0; j < 16; j++)
 947                         printf("%02X", _rand[j]);
 948                 printf("\n");
 949         }
 950
 951         scard_deinit(scard);
 952
 953         return 0;
 954 }
 955
 956
 957 static void eapol_test_terminate(int sig, void *eloop_ctx,
 958                                  void *signal_ctx)
 959 {
 960         struct wpa_supplicant *wpa_s = eloop_ctx;
 961         wpa_msg(wpa_s, MSG_INFO, "Signal %d received - terminating", sig);
 962         eloop_terminate();
 963 }
 964
 965
 966 static void usage(void)
 967 {
 968         printf("usage:\n"
 969                "eapol_test [-nWS] -c<conf> [-a<AS IP>] [-p<AS port>] "
 970                "[-s<AS secret>]\\\n"
 971                "           [-r<count>] [-t<timeout>] [-C<Connect-Info>] \\\n"
 972                "           [-M<client MAC address>] \\\n"
 973                "           [-N<attr spec>] \\\n"
 974                "           [-A<client IP>]\n"
 975                "eapol_test scard\n"
 976                "eapol_test sim <PIN> <num triplets> [debug]\n"
 977                "\n");
 978         printf("options:\n"
 979                "  -c<conf> = configuration file\n"
 980                "  -a<AS IP> = IP address of the authentication server, "
 981                "default 127.0.0.1\n"
 982                "  -p<AS port> = UDP port of the authentication server, "
 983                "default 1812\n"
 984                "  -s<AS secret> = shared secret with the authentication "
 985                "server, default 'radius'\n"
 986                "  -A<client IP> = IP address of the client, default: select "
 987                "automatically\n"
 988                "  -r<count> = number of re-authentications\n"
 989                "  -W = wait for a control interface monitor before starting\n"
 990                "  -S = save configuration after authentication\n"
 991                "  -n = no MPPE keys expected\n"
 992                "  -t<timeout> = sets timeout in seconds (default: 30 s)\n"
 993                "  -C<Connect-Info> = RADIUS Connect-Info (default: "
 994                "CONNECT 11Mbps 802.11b)\n"
 995                "  -M<client MAC address> = Set own MAC address "
 996                "(Calling-Station-Id,\n"
 997                "                           default: 02:00:00:00:00:01)\n"
 998                "  -N<attr spec> = send arbitrary attribute specified by:\n"
 999                "                  attr_id:syntax:value or attr_id\n"
1000                "                  attr_id - number id of the attribute\n"
1001                "                  syntax - one of: s, d, x\n"
1002                "                     s = string\n"
1003                "                     d = integer\n"
1004                "                     x = octet string\n"
1005                "                  value - attribute value.\n"
1006                "       When only attr_id is specified, NULL will be used as "
1007                "value.\n"
1008                "       Multiple attributes can be specified by using the "
1009                "option several times.\n");
1010 }
1011
1012
1013 int main(int argc, char *argv[])
1014 {
1015         struct wpa_supplicant wpa_s;
1016         int c, ret = 1, wait_for_monitor = 0, save_config = 0;
1017         char *as_addr = "127.0.0.1";
1018         int as_port = 1812;
1019         char *as_secret = "radius";
1020         char *cli_addr = NULL;
1021         char *conf = NULL;
1022         int timeout = 30;
1023         char *pos;
1024         struct extra_radius_attr *p = NULL, *p1;
1025
1026         if (os_program_init())
1027                 return -1;
1028
1029         hostapd_logger_register_cb(hostapd_logger_cb);
1030
1031         os_memset(&eapol_test, 0, sizeof(eapol_test));
1032         eapol_test.connect_info = "CONNECT 11Mbps 802.11b";
1033         os_memcpy(eapol_test.own_addr, "\x02\x00\x00\x00\x00\x01", ETH_ALEN);
1034
1035         wpa_debug_level = 0;
1036         wpa_debug_show_keys = 1;
1037
1038         for (;;) {
1039                 c = getopt(argc, argv, "a:A:c:C:M:nN:p:r:s:St:W");
1040                 if (c < 0)
1041                         break;
1042                 switch (c) {
1043                 case 'a':
1044                         as_addr = optarg;
1045                         break;
1046                 case 'A':
1047                         cli_addr = optarg;
1048                         break;
1049                 case 'c':
1050                         conf = optarg;
1051                         break;
1052                 case 'C':
1053                         eapol_test.connect_info = optarg;
1054                         break;
1055                 case 'M':
1056                         if (hwaddr_aton(optarg, eapol_test.own_addr)) {
1057                                 usage();
1058                                 return -1;
1059                         }
1060                         break;
1061                 case 'n':
1062                         eapol_test.no_mppe_keys++;
1063                         break;
1064                 case 'p':
1065                         as_port = atoi(optarg);
1066                         break;
1067                 case 'r':
1068                         eapol_test.eapol_test_num_reauths = atoi(optarg);
1069                         break;
1070                 case 's':
1071                         as_secret = optarg;
1072                         break;
1073                 case 'S':
1074                         save_config++;
1075                         break;
1076                 case 't':
1077                         timeout = atoi(optarg);
1078                         break;
1079                 case 'W':
1080                         wait_for_monitor++;
1081                         break;
1082                 case 'N':
1083                         p1 = os_zalloc(sizeof(p1));
1084                         if (p1 == NULL)
1085                                 break;
1086                         if (!p)
1087                                 eapol_test.extra_attrs = p1;
1088                         else
1089                                 p->next = p1;
1090                         p = p1;
1091
1092                         p->type = atoi(optarg);
1093                         pos = os_strchr(optarg, ':');
1094                         if (pos == NULL) {
1095                                 p->syntax = 'n';
1096                                 p->data = NULL;
1097                                 break;
1098                         }
1099
1100                         pos++;
1101                         if (pos[0] == '\0' || pos[1] != ':') {
1102                                 printf("Incorrect format of attribute "
1103                                        "specification\n");
1104                                 break;
1105                         }
1106
1107                         p->syntax = pos[0];
1108                         p->data = pos + 2;
1109                         break;
1110                 default:
1111                         usage();
1112                         return -1;
1113                 }
1114         }
1115
1116         if (argc > optind && os_strcmp(argv[optind], "scard") == 0) {
1117                 return scard_test();
1118         }
1119
1120         if (argc > optind && os_strcmp(argv[optind], "sim") == 0) {
1121                 return scard_get_triplets(argc - optind - 1,
1122                                           &argv[optind + 1]);
1123         }
1124
1125         if (conf == NULL) {
1126                 usage();
1127                 printf("Configuration file is required.\n");
1128                 return -1;
1129         }
1130
1131         if (eap_register_methods()) {
1132                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
1133                 return -1;
1134         }
1135
1136         if (eloop_init(&wpa_s)) {
1137                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
1138                 return -1;
1139         }
1140
1141         os_memset(&wpa_s, 0, sizeof(wpa_s));
1142         eapol_test.wpa_s = &wpa_s;
1143         wpa_s.conf = wpa_config_read(conf);
1144         if (wpa_s.conf == NULL) {
1145                 printf("Failed to parse configuration file '%s'.\n", conf);
1146                 return -1;
1147         }
1148         if (wpa_s.conf->ssid == NULL) {
1149                 printf("No networks defined.\n");
1150                 return -1;
1151         }
1152
1153         wpa_init_conf(&eapol_test, &wpa_s, as_addr, as_port, as_secret,
1154                       cli_addr);
1155         wpa_s.ctrl_iface = wpa_supplicant_ctrl_iface_init(&wpa_s);
1156         if (wpa_s.ctrl_iface == NULL) {
1157                 printf("Failed to initialize control interface '%s'.\n"
1158                        "You may have another eapol_test process already "
1159                        "running or the file was\n"
1160                        "left by an unclean termination of eapol_test in "
1161                        "which case you will need\n"
1162                        "to manually remove this file before starting "
1163                        "eapol_test again.\n",
1164                        wpa_s.conf->ctrl_interface);
1165                 return -1;
1166         }
1167         if (wpa_supplicant_scard_init(&wpa_s, wpa_s.conf->ssid))
1168                 return -1;
1169
1170         if (test_eapol(&eapol_test, &wpa_s, wpa_s.conf->ssid))
1171                 return -1;
1172
1173         if (wait_for_monitor)
1174                 wpa_supplicant_ctrl_iface_wait(wpa_s.ctrl_iface);
1175
1176         eloop_register_timeout(timeout, 0, eapol_test_timeout, &eapol_test,
1177                                NULL);
1178         eloop_register_timeout(0, 0, send_eap_request_identity, &wpa_s, NULL);
1179         eloop_register_signal_terminate(eapol_test_terminate, NULL);
1180         eloop_register_signal_reconfig(eapol_test_terminate, NULL);
1181         eloop_run();
1182
1183         eloop_cancel_timeout(eapol_test_timeout, &eapol_test, NULL);
1184         eloop_cancel_timeout(eapol_sm_reauth, &eapol_test, NULL);
1185
1186         if (eapol_test_compare_pmk(&eapol_test) == 0 ||
1187             eapol_test.no_mppe_keys)
1188                 ret = 0;
1189         if (eapol_test.auth_timed_out)
1190                 ret = -2;
1191         if (eapol_test.radius_access_reject_received)
1192                 ret = -3;
1193
1194         if (save_config)
1195                 wpa_config_write(conf, wpa_s.conf);
1196
1197         test_eapol_clean(&eapol_test, &wpa_s);
1198
1199         eap_peer_unregister_methods();
1200
1201         eloop_destroy();
1202
1203         printf("MPPE keys OK: %d  mismatch: %d\n",
1204                eapol_test.num_mppe_ok, eapol_test.num_mppe_mismatch);
1205         if (eapol_test.num_mppe_mismatch)
1206                 ret = -4;
1207         if (ret)
1208                 printf("FAILURE\n");
1209         else
1210                 printf("SUCCESS\n");
1211
1212         os_program_deinit();
1213
1214         return ret;
1215 }