eapol_test.c revision 214734
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 35extern int wpa_debug_level; 36extern int wpa_debug_show_keys; 37 38struct wpa_driver_ops *wpa_drivers[] = { NULL }; 39 40 41struct extra_radius_attr { 42 u8 type; 43 char syntax; 44 char *data; 45 struct extra_radius_attr *next; 46}; 47 48struct 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 79static struct eapol_test_data eapol_test; 80 81 82static void send_eap_request_identity(void *eloop_ctx, void *timeout_ctx); 83 84 85static 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 96static 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 147static 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 159static struct extra_radius_attr * 160find_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 171static 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 290static 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 304static 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 312static const struct wpa_config_blob * 313eapol_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 320static void eapol_test_eapol_done_cb(void *ctx) 321{ 322 printf("WPA: EAPOL processing complete\n"); 323} 324 325 326static 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 335static 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 371static 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 385static 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 436static 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 471static 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 496static 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 505static 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 526static 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 614static 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 */ 662static RadiusRxResult 663ieee802_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 722static 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 781static 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 879failed: 880 scard_deinit(scard); 881 882 return 0; 883#undef num_triplets 884} 885 886 887static 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 952static 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 960static 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 1007int 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} 1210