1/* 2 * WPA Supplicant - test code 3 * Copyright (c) 2003-2011, Jouni Malinen <j@w1.fi> 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 * 8 * IEEE 802.1X Supplicant test code (to be used in place of wpa_supplicant.c. 9 * Not used in production version. 10 */ 11 12#include "includes.h" 13#include <assert.h> 14 15#include "common.h" 16#include "config.h" 17#include "eapol_supp/eapol_supp_sm.h" 18#include "eap_peer/eap.h" 19#include "eap_server/eap_methods.h" 20#include "eloop.h" 21#include "utils/base64.h" 22#include "rsn_supp/wpa.h" 23#include "eap_peer/eap_i.h" 24#include "wpa_supplicant_i.h" 25#include "radius/radius.h" 26#include "radius/radius_client.h" 27#include "common/wpa_ctrl.h" 28#include "ctrl_iface.h" 29#include "pcsc_funcs.h" 30 31 32extern int wpa_debug_level; 33extern int wpa_debug_show_keys; 34 35struct wpa_driver_ops *wpa_drivers[] = { NULL }; 36 37 38struct extra_radius_attr { 39 u8 type; 40 char syntax; 41 char *data; 42 struct extra_radius_attr *next; 43}; 44 45struct eapol_test_data { 46 struct wpa_supplicant *wpa_s; 47 48 int eapol_test_num_reauths; 49 int no_mppe_keys; 50 int num_mppe_ok, num_mppe_mismatch; 51 52 u8 radius_identifier; 53 struct radius_msg *last_recv_radius; 54 struct in_addr own_ip_addr; 55 struct radius_client_data *radius; 56 struct hostapd_radius_servers *radius_conf; 57 58 u8 *last_eap_radius; /* last received EAP Response from Authentication 59 * Server */ 60 size_t last_eap_radius_len; 61 62 u8 authenticator_pmk[PMK_LEN]; 63 size_t authenticator_pmk_len; 64 int radius_access_accept_received; 65 int radius_access_reject_received; 66 int auth_timed_out; 67 68 u8 *eap_identity; 69 size_t eap_identity_len; 70 71 char *connect_info; 72 u8 own_addr[ETH_ALEN]; 73 struct extra_radius_attr *extra_attrs; 74 75 FILE *server_cert_file; 76}; 77 78static struct eapol_test_data eapol_test; 79 80 81static void send_eap_request_identity(void *eloop_ctx, void *timeout_ctx); 82 83 84static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module, 85 int level, const char *txt, size_t len) 86{ 87 if (addr) 88 wpa_printf(MSG_DEBUG, "STA " MACSTR ": %s\n", 89 MAC2STR(addr), txt); 90 else 91 wpa_printf(MSG_DEBUG, "%s", txt); 92} 93 94 95static int add_extra_attr(struct radius_msg *msg, 96 struct extra_radius_attr *attr) 97{ 98 size_t len; 99 char *pos; 100 u32 val; 101 char buf[128]; 102 103 switch (attr->syntax) { 104 case 's': 105 os_snprintf(buf, sizeof(buf), "%s", attr->data); 106 len = os_strlen(buf); 107 break; 108 case 'n': 109 buf[0] = '\0'; 110 len = 1; 111 break; 112 case 'x': 113 pos = attr->data; 114 if (pos[0] == '0' && pos[1] == 'x') 115 pos += 2; 116 len = os_strlen(pos); 117 if ((len & 1) || (len / 2) > sizeof(buf)) { 118 printf("Invalid extra attribute hexstring\n"); 119 return -1; 120 } 121 len /= 2; 122 if (hexstr2bin(pos, (u8 *) buf, len) < 0) { 123 printf("Invalid extra attribute hexstring\n"); 124 return -1; 125 } 126 break; 127 case 'd': 128 val = htonl(atoi(attr->data)); 129 os_memcpy(buf, &val, 4); 130 len = 4; 131 break; 132 default: 133 printf("Incorrect extra attribute syntax specification\n"); 134 return -1; 135 } 136 137 if (!radius_msg_add_attr(msg, attr->type, (u8 *) buf, len)) { 138 printf("Could not add attribute %d\n", attr->type); 139 return -1; 140 } 141 142 return 0; 143} 144 145 146static int add_extra_attrs(struct radius_msg *msg, 147 struct extra_radius_attr *attrs) 148{ 149 struct extra_radius_attr *p; 150 for (p = attrs; p; p = p->next) { 151 if (add_extra_attr(msg, p) < 0) 152 return -1; 153 } 154 return 0; 155} 156 157 158static struct extra_radius_attr * 159find_extra_attr(struct extra_radius_attr *attrs, u8 type) 160{ 161 struct extra_radius_attr *p; 162 for (p = attrs; p; p = p->next) { 163 if (p->type == type) 164 return p; 165 } 166 return NULL; 167} 168 169 170static void ieee802_1x_encapsulate_radius(struct eapol_test_data *e, 171 const u8 *eap, size_t len) 172{ 173 struct radius_msg *msg; 174 char buf[128]; 175 const struct eap_hdr *hdr; 176 const u8 *pos; 177 178 wpa_printf(MSG_DEBUG, "Encapsulating EAP message into a RADIUS " 179 "packet"); 180 181 e->radius_identifier = radius_client_get_id(e->radius); 182 msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST, 183 e->radius_identifier); 184 if (msg == NULL) { 185 printf("Could not create net RADIUS packet\n"); 186 return; 187 } 188 189 radius_msg_make_authenticator(msg, (u8 *) e, sizeof(*e)); 190 191 hdr = (const struct eap_hdr *) eap; 192 pos = (const u8 *) (hdr + 1); 193 if (len > sizeof(*hdr) && hdr->code == EAP_CODE_RESPONSE && 194 pos[0] == EAP_TYPE_IDENTITY) { 195 pos++; 196 os_free(e->eap_identity); 197 e->eap_identity_len = len - sizeof(*hdr) - 1; 198 e->eap_identity = os_malloc(e->eap_identity_len); 199 if (e->eap_identity) { 200 os_memcpy(e->eap_identity, pos, e->eap_identity_len); 201 wpa_hexdump(MSG_DEBUG, "Learned identity from " 202 "EAP-Response-Identity", 203 e->eap_identity, e->eap_identity_len); 204 } 205 } 206 207 if (e->eap_identity && 208 !radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME, 209 e->eap_identity, e->eap_identity_len)) { 210 printf("Could not add User-Name\n"); 211 goto fail; 212 } 213 214 if (!find_extra_attr(e->extra_attrs, RADIUS_ATTR_NAS_IP_ADDRESS) && 215 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IP_ADDRESS, 216 (u8 *) &e->own_ip_addr, 4)) { 217 printf("Could not add NAS-IP-Address\n"); 218 goto fail; 219 } 220 221 os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT, 222 MAC2STR(e->wpa_s->own_addr)); 223 if (!find_extra_attr(e->extra_attrs, RADIUS_ATTR_CALLING_STATION_ID) 224 && 225 !radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID, 226 (u8 *) buf, os_strlen(buf))) { 227 printf("Could not add Calling-Station-Id\n"); 228 goto fail; 229 } 230 231 /* TODO: should probably check MTU from driver config; 2304 is max for 232 * IEEE 802.11, but use 1400 to avoid problems with too large packets 233 */ 234 if (!find_extra_attr(e->extra_attrs, RADIUS_ATTR_FRAMED_MTU) && 235 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_FRAMED_MTU, 1400)) { 236 printf("Could not add Framed-MTU\n"); 237 goto fail; 238 } 239 240 if (!find_extra_attr(e->extra_attrs, RADIUS_ATTR_NAS_PORT_TYPE) && 241 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT_TYPE, 242 RADIUS_NAS_PORT_TYPE_IEEE_802_11)) { 243 printf("Could not add NAS-Port-Type\n"); 244 goto fail; 245 } 246 247 os_snprintf(buf, sizeof(buf), "%s", e->connect_info); 248 if (!find_extra_attr(e->extra_attrs, RADIUS_ATTR_CONNECT_INFO) && 249 !radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO, 250 (u8 *) buf, os_strlen(buf))) { 251 printf("Could not add Connect-Info\n"); 252 goto fail; 253 } 254 255 if (add_extra_attrs(msg, e->extra_attrs) < 0) 256 goto fail; 257 258 if (eap && !radius_msg_add_eap(msg, eap, len)) { 259 printf("Could not add EAP-Message\n"); 260 goto fail; 261 } 262 263 /* State attribute must be copied if and only if this packet is 264 * Access-Request reply to the previous Access-Challenge */ 265 if (e->last_recv_radius && 266 radius_msg_get_hdr(e->last_recv_radius)->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} 287 288 289static int eapol_test_eapol_send(void *ctx, int type, const u8 *buf, 290 size_t len) 291{ 292 printf("WPA: eapol_test_eapol_send(type=%d len=%lu)\n", 293 type, (unsigned long) len); 294 if (type == IEEE802_1X_TYPE_EAP_PACKET) { 295 wpa_hexdump(MSG_DEBUG, "TX EAP -> RADIUS", buf, len); 296 ieee802_1x_encapsulate_radius(&eapol_test, buf, len); 297 } 298 return 0; 299} 300 301 302static void eapol_test_set_config_blob(void *ctx, 303 struct wpa_config_blob *blob) 304{ 305 struct eapol_test_data *e = ctx; 306 wpa_config_set_blob(e->wpa_s->conf, blob); 307} 308 309 310static const struct wpa_config_blob * 311eapol_test_get_config_blob(void *ctx, const char *name) 312{ 313 struct eapol_test_data *e = ctx; 314 return wpa_config_get_blob(e->wpa_s->conf, name); 315} 316 317 318static void eapol_test_eapol_done_cb(void *ctx) 319{ 320 printf("WPA: EAPOL processing complete\n"); 321} 322 323 324static void eapol_sm_reauth(void *eloop_ctx, void *timeout_ctx) 325{ 326 struct eapol_test_data *e = eloop_ctx; 327 printf("\n\n\n\n\neapol_test: Triggering EAP reauthentication\n\n"); 328 e->radius_access_accept_received = 0; 329 send_eap_request_identity(e->wpa_s, NULL); 330} 331 332 333static int eapol_test_compare_pmk(struct eapol_test_data *e) 334{ 335 u8 pmk[PMK_LEN]; 336 int ret = 1; 337 338 if (eapol_sm_get_key(e->wpa_s->eapol, pmk, PMK_LEN) == 0) { 339 wpa_hexdump(MSG_DEBUG, "PMK from EAPOL", pmk, PMK_LEN); 340 if (os_memcmp(pmk, e->authenticator_pmk, PMK_LEN) != 0) { 341 printf("WARNING: PMK mismatch\n"); 342 wpa_hexdump(MSG_DEBUG, "PMK from AS", 343 e->authenticator_pmk, PMK_LEN); 344 } else if (e->radius_access_accept_received) 345 ret = 0; 346 } else if (e->authenticator_pmk_len == 16 && 347 eapol_sm_get_key(e->wpa_s->eapol, pmk, 16) == 0) { 348 wpa_hexdump(MSG_DEBUG, "LEAP PMK from EAPOL", pmk, 16); 349 if (os_memcmp(pmk, e->authenticator_pmk, 16) != 0) { 350 printf("WARNING: PMK mismatch\n"); 351 wpa_hexdump(MSG_DEBUG, "PMK from AS", 352 e->authenticator_pmk, 16); 353 } else if (e->radius_access_accept_received) 354 ret = 0; 355 } else if (e->radius_access_accept_received && e->no_mppe_keys) { 356 /* No keying material expected */ 357 ret = 0; 358 } 359 360 if (ret && !e->no_mppe_keys) 361 e->num_mppe_mismatch++; 362 else if (!e->no_mppe_keys) 363 e->num_mppe_ok++; 364 365 return ret; 366} 367 368 369static void eapol_sm_cb(struct eapol_sm *eapol, int success, void *ctx) 370{ 371 struct eapol_test_data *e = ctx; 372 printf("eapol_sm_cb: success=%d\n", success); 373 e->eapol_test_num_reauths--; 374 if (e->eapol_test_num_reauths < 0) 375 eloop_terminate(); 376 else { 377 eapol_test_compare_pmk(e); 378 eloop_register_timeout(0, 100000, eapol_sm_reauth, e, NULL); 379 } 380} 381 382 383static void eapol_test_write_cert(FILE *f, const char *subject, 384 const struct wpabuf *cert) 385{ 386 unsigned char *encoded; 387 388 encoded = base64_encode(wpabuf_head(cert), wpabuf_len(cert), NULL); 389 if (encoded == NULL) 390 return; 391 fprintf(f, "%s\n-----BEGIN CERTIFICATE-----\n%s" 392 "-----END CERTIFICATE-----\n\n", subject, encoded); 393 os_free(encoded); 394} 395 396 397static void eapol_test_cert_cb(void *ctx, int depth, const char *subject, 398 const char *cert_hash, 399 const struct wpabuf *cert) 400{ 401 struct eapol_test_data *e = ctx; 402 403 wpa_msg(e->wpa_s, MSG_INFO, WPA_EVENT_EAP_PEER_CERT 404 "depth=%d subject='%s'%s%s", 405 depth, subject, 406 cert_hash ? " hash=" : "", 407 cert_hash ? cert_hash : ""); 408 409 if (cert) { 410 char *cert_hex; 411 size_t len = wpabuf_len(cert) * 2 + 1; 412 cert_hex = os_malloc(len); 413 if (cert_hex) { 414 wpa_snprintf_hex(cert_hex, len, wpabuf_head(cert), 415 wpabuf_len(cert)); 416 wpa_msg_ctrl(e->wpa_s, MSG_INFO, 417 WPA_EVENT_EAP_PEER_CERT 418 "depth=%d subject='%s' cert=%s", 419 depth, subject, cert_hex); 420 os_free(cert_hex); 421 } 422 423 if (e->server_cert_file) 424 eapol_test_write_cert(e->server_cert_file, 425 subject, cert); 426 } 427} 428 429 430static int test_eapol(struct eapol_test_data *e, struct wpa_supplicant *wpa_s, 431 struct wpa_ssid *ssid) 432{ 433 struct eapol_config eapol_conf; 434 struct eapol_ctx *ctx; 435 436 ctx = os_zalloc(sizeof(*ctx)); 437 if (ctx == NULL) { 438 printf("Failed to allocate EAPOL context.\n"); 439 return -1; 440 } 441 ctx->ctx = e; 442 ctx->msg_ctx = wpa_s; 443 ctx->scard_ctx = wpa_s->scard; 444 ctx->cb = eapol_sm_cb; 445 ctx->cb_ctx = e; 446 ctx->eapol_send_ctx = wpa_s; 447 ctx->preauth = 0; 448 ctx->eapol_done_cb = eapol_test_eapol_done_cb; 449 ctx->eapol_send = eapol_test_eapol_send; 450 ctx->set_config_blob = eapol_test_set_config_blob; 451 ctx->get_config_blob = eapol_test_get_config_blob; 452 ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path; 453 ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path; 454 ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path; 455 ctx->cert_cb = eapol_test_cert_cb; 456 ctx->cert_in_cb = 1; 457 458 wpa_s->eapol = eapol_sm_init(ctx); 459 if (wpa_s->eapol == NULL) { 460 os_free(ctx); 461 printf("Failed to initialize EAPOL state machines.\n"); 462 return -1; 463 } 464 465 wpa_s->current_ssid = ssid; 466 os_memset(&eapol_conf, 0, sizeof(eapol_conf)); 467 eapol_conf.accept_802_1x_keys = 1; 468 eapol_conf.required_keys = 0; 469 eapol_conf.fast_reauth = wpa_s->conf->fast_reauth; 470 eapol_conf.workaround = ssid->eap_workaround; 471 eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf); 472 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard); 473 474 475 eapol_sm_notify_portValid(wpa_s->eapol, FALSE); 476 /* 802.1X::portControl = Auto */ 477 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE); 478 479 return 0; 480} 481 482 483static void test_eapol_clean(struct eapol_test_data *e, 484 struct wpa_supplicant *wpa_s) 485{ 486 struct extra_radius_attr *p, *prev; 487 488 radius_client_deinit(e->radius); 489 os_free(e->last_eap_radius); 490 radius_msg_free(e->last_recv_radius); 491 e->last_recv_radius = NULL; 492 os_free(e->eap_identity); 493 e->eap_identity = NULL; 494 eapol_sm_deinit(wpa_s->eapol); 495 wpa_s->eapol = NULL; 496 if (e->radius_conf && e->radius_conf->auth_server) { 497 os_free(e->radius_conf->auth_server->shared_secret); 498 os_free(e->radius_conf->auth_server); 499 } 500 os_free(e->radius_conf); 501 e->radius_conf = NULL; 502 scard_deinit(wpa_s->scard); 503 if (wpa_s->ctrl_iface) { 504 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); 505 wpa_s->ctrl_iface = NULL; 506 } 507 wpa_config_free(wpa_s->conf); 508 509 p = e->extra_attrs; 510 while (p) { 511 prev = p; 512 p = p->next; 513 os_free(prev); 514 } 515} 516 517 518static void send_eap_request_identity(void *eloop_ctx, void *timeout_ctx) 519{ 520 struct wpa_supplicant *wpa_s = eloop_ctx; 521 u8 buf[100], *pos; 522 struct ieee802_1x_hdr *hdr; 523 struct eap_hdr *eap; 524 525 hdr = (struct ieee802_1x_hdr *) buf; 526 hdr->version = EAPOL_VERSION; 527 hdr->type = IEEE802_1X_TYPE_EAP_PACKET; 528 hdr->length = htons(5); 529 530 eap = (struct eap_hdr *) (hdr + 1); 531 eap->code = EAP_CODE_REQUEST; 532 eap->identifier = 0; 533 eap->length = htons(5); 534 pos = (u8 *) (eap + 1); 535 *pos = EAP_TYPE_IDENTITY; 536 537 printf("Sending fake EAP-Request-Identity\n"); 538 eapol_sm_rx_eapol(wpa_s->eapol, wpa_s->bssid, buf, 539 sizeof(*hdr) + 5); 540} 541 542 543static void eapol_test_timeout(void *eloop_ctx, void *timeout_ctx) 544{ 545 struct eapol_test_data *e = eloop_ctx; 546 printf("EAPOL test timed out\n"); 547 e->auth_timed_out = 1; 548 eloop_terminate(); 549} 550 551 552static char *eap_type_text(u8 type) 553{ 554 switch (type) { 555 case EAP_TYPE_IDENTITY: return "Identity"; 556 case EAP_TYPE_NOTIFICATION: return "Notification"; 557 case EAP_TYPE_NAK: return "Nak"; 558 case EAP_TYPE_TLS: return "TLS"; 559 case EAP_TYPE_TTLS: return "TTLS"; 560 case EAP_TYPE_PEAP: return "PEAP"; 561 case EAP_TYPE_SIM: return "SIM"; 562 case EAP_TYPE_GTC: return "GTC"; 563 case EAP_TYPE_MD5: return "MD5"; 564 case EAP_TYPE_OTP: return "OTP"; 565 case EAP_TYPE_FAST: return "FAST"; 566 case EAP_TYPE_SAKE: return "SAKE"; 567 case EAP_TYPE_PSK: return "PSK"; 568 default: return "Unknown"; 569 } 570} 571 572 573static void ieee802_1x_decapsulate_radius(struct eapol_test_data *e) 574{ 575 u8 *eap; 576 size_t len; 577 struct eap_hdr *hdr; 578 int eap_type = -1; 579 char buf[64]; 580 struct radius_msg *msg; 581 582 if (e->last_recv_radius == NULL) 583 return; 584 585 msg = e->last_recv_radius; 586 587 eap = radius_msg_get_eap(msg, &len); 588 if (eap == NULL) { 589 /* draft-aboba-radius-rfc2869bis-20.txt, Chap. 2.6.3: 590 * RADIUS server SHOULD NOT send Access-Reject/no EAP-Message 591 * attribute */ 592 wpa_printf(MSG_DEBUG, "could not extract " 593 "EAP-Message from RADIUS message"); 594 os_free(e->last_eap_radius); 595 e->last_eap_radius = NULL; 596 e->last_eap_radius_len = 0; 597 return; 598 } 599 600 if (len < sizeof(*hdr)) { 601 wpa_printf(MSG_DEBUG, "too short EAP packet " 602 "received from authentication server"); 603 os_free(eap); 604 return; 605 } 606 607 if (len > sizeof(*hdr)) 608 eap_type = eap[sizeof(*hdr)]; 609 610 hdr = (struct eap_hdr *) eap; 611 switch (hdr->code) { 612 case EAP_CODE_REQUEST: 613 os_snprintf(buf, sizeof(buf), "EAP-Request-%s (%d)", 614 eap_type >= 0 ? eap_type_text(eap_type) : "??", 615 eap_type); 616 break; 617 case EAP_CODE_RESPONSE: 618 os_snprintf(buf, sizeof(buf), "EAP Response-%s (%d)", 619 eap_type >= 0 ? eap_type_text(eap_type) : "??", 620 eap_type); 621 break; 622 case EAP_CODE_SUCCESS: 623 os_strlcpy(buf, "EAP Success", sizeof(buf)); 624 /* LEAP uses EAP Success within an authentication, so must not 625 * stop here with eloop_terminate(); */ 626 break; 627 case EAP_CODE_FAILURE: 628 os_strlcpy(buf, "EAP Failure", sizeof(buf)); 629 eloop_terminate(); 630 break; 631 default: 632 os_strlcpy(buf, "unknown EAP code", sizeof(buf)); 633 wpa_hexdump(MSG_DEBUG, "Decapsulated EAP packet", eap, len); 634 break; 635 } 636 wpa_printf(MSG_DEBUG, "decapsulated EAP packet (code=%d " 637 "id=%d len=%d) from RADIUS server: %s", 638 hdr->code, hdr->identifier, ntohs(hdr->length), buf); 639 640 /* sta->eapol_sm->be_auth.idFromServer = hdr->identifier; */ 641 642 os_free(e->last_eap_radius); 643 e->last_eap_radius = eap; 644 e->last_eap_radius_len = len; 645 646 { 647 struct ieee802_1x_hdr *dot1x; 648 dot1x = os_malloc(sizeof(*dot1x) + len); 649 assert(dot1x != NULL); 650 dot1x->version = EAPOL_VERSION; 651 dot1x->type = IEEE802_1X_TYPE_EAP_PACKET; 652 dot1x->length = htons(len); 653 os_memcpy((u8 *) (dot1x + 1), eap, len); 654 eapol_sm_rx_eapol(e->wpa_s->eapol, e->wpa_s->bssid, 655 (u8 *) dot1x, sizeof(*dot1x) + len); 656 os_free(dot1x); 657 } 658} 659 660 661static void ieee802_1x_get_keys(struct eapol_test_data *e, 662 struct radius_msg *msg, struct radius_msg *req, 663 const u8 *shared_secret, 664 size_t shared_secret_len) 665{ 666 struct radius_ms_mppe_keys *keys; 667 668 keys = radius_msg_get_ms_keys(msg, req, shared_secret, 669 shared_secret_len); 670 if (keys && keys->send == NULL && keys->recv == NULL) { 671 os_free(keys); 672 keys = radius_msg_get_cisco_keys(msg, req, shared_secret, 673 shared_secret_len); 674 } 675 676 if (keys) { 677 if (keys->send) { 678 wpa_hexdump(MSG_DEBUG, "MS-MPPE-Send-Key (sign)", 679 keys->send, keys->send_len); 680 } 681 if (keys->recv) { 682 wpa_hexdump(MSG_DEBUG, "MS-MPPE-Recv-Key (crypt)", 683 keys->recv, keys->recv_len); 684 e->authenticator_pmk_len = 685 keys->recv_len > PMK_LEN ? PMK_LEN : 686 keys->recv_len; 687 os_memcpy(e->authenticator_pmk, keys->recv, 688 e->authenticator_pmk_len); 689 if (e->authenticator_pmk_len == 16 && keys->send && 690 keys->send_len == 16) { 691 /* MS-CHAP-v2 derives 16 octet keys */ 692 wpa_printf(MSG_DEBUG, "Use MS-MPPE-Send-Key " 693 "to extend PMK to 32 octets"); 694 os_memcpy(e->authenticator_pmk + 695 e->authenticator_pmk_len, 696 keys->send, keys->send_len); 697 e->authenticator_pmk_len += keys->send_len; 698 } 699 } 700 701 os_free(keys->send); 702 os_free(keys->recv); 703 os_free(keys); 704 } 705} 706 707 708/* Process the RADIUS frames from Authentication Server */ 709static RadiusRxResult 710ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req, 711 const u8 *shared_secret, size_t shared_secret_len, 712 void *data) 713{ 714 struct eapol_test_data *e = data; 715 struct radius_hdr *hdr = radius_msg_get_hdr(msg); 716 717 /* RFC 2869, Ch. 5.13: valid Message-Authenticator attribute MUST be 718 * present when packet contains an EAP-Message attribute */ 719 if (hdr->code == RADIUS_CODE_ACCESS_REJECT && 720 radius_msg_get_attr(msg, RADIUS_ATTR_MESSAGE_AUTHENTICATOR, NULL, 721 0) < 0 && 722 radius_msg_get_attr(msg, RADIUS_ATTR_EAP_MESSAGE, NULL, 0) < 0) { 723 wpa_printf(MSG_DEBUG, "Allowing RADIUS " 724 "Access-Reject without Message-Authenticator " 725 "since it does not include EAP-Message\n"); 726 } else if (radius_msg_verify(msg, shared_secret, shared_secret_len, 727 req, 1)) { 728 printf("Incoming RADIUS packet did not have correct " 729 "Message-Authenticator - dropped\n"); 730 return RADIUS_RX_UNKNOWN; 731 } 732 733 if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT && 734 hdr->code != RADIUS_CODE_ACCESS_REJECT && 735 hdr->code != RADIUS_CODE_ACCESS_CHALLENGE) { 736 printf("Unknown RADIUS message code\n"); 737 return RADIUS_RX_UNKNOWN; 738 } 739 740 e->radius_identifier = -1; 741 wpa_printf(MSG_DEBUG, "RADIUS packet matching with station"); 742 743 radius_msg_free(e->last_recv_radius); 744 e->last_recv_radius = msg; 745 746 switch (hdr->code) { 747 case RADIUS_CODE_ACCESS_ACCEPT: 748 e->radius_access_accept_received = 1; 749 ieee802_1x_get_keys(e, msg, req, shared_secret, 750 shared_secret_len); 751 break; 752 case RADIUS_CODE_ACCESS_REJECT: 753 e->radius_access_reject_received = 1; 754 break; 755 } 756 757 ieee802_1x_decapsulate_radius(e); 758 759 if ((hdr->code == RADIUS_CODE_ACCESS_ACCEPT && 760 e->eapol_test_num_reauths < 0) || 761 hdr->code == RADIUS_CODE_ACCESS_REJECT) { 762 eloop_terminate(); 763 } 764 765 return RADIUS_RX_QUEUED; 766} 767 768 769static void wpa_init_conf(struct eapol_test_data *e, 770 struct wpa_supplicant *wpa_s, const char *authsrv, 771 int port, const char *secret, 772 const char *cli_addr) 773{ 774 struct hostapd_radius_server *as; 775 int res; 776 777 wpa_s->bssid[5] = 1; 778 os_memcpy(wpa_s->own_addr, e->own_addr, ETH_ALEN); 779 e->own_ip_addr.s_addr = htonl((127 << 24) | 1); 780 os_strlcpy(wpa_s->ifname, "test", sizeof(wpa_s->ifname)); 781 782 e->radius_conf = os_zalloc(sizeof(struct hostapd_radius_servers)); 783 assert(e->radius_conf != NULL); 784 e->radius_conf->num_auth_servers = 1; 785 as = os_zalloc(sizeof(struct hostapd_radius_server)); 786 assert(as != NULL); 787#if defined(CONFIG_NATIVE_WINDOWS) || defined(CONFIG_ANSI_C_EXTRA) 788 { 789 int a[4]; 790 u8 *pos; 791 sscanf(authsrv, "%d.%d.%d.%d", &a[0], &a[1], &a[2], &a[3]); 792 pos = (u8 *) &as->addr.u.v4; 793 *pos++ = a[0]; 794 *pos++ = a[1]; 795 *pos++ = a[2]; 796 *pos++ = a[3]; 797 } 798#else /* CONFIG_NATIVE_WINDOWS or CONFIG_ANSI_C_EXTRA */ 799 inet_aton(authsrv, &as->addr.u.v4); 800#endif /* CONFIG_NATIVE_WINDOWS or CONFIG_ANSI_C_EXTRA */ 801 as->addr.af = AF_INET; 802 as->port = port; 803 as->shared_secret = (u8 *) os_strdup(secret); 804 as->shared_secret_len = os_strlen(secret); 805 e->radius_conf->auth_server = as; 806 e->radius_conf->auth_servers = as; 807 e->radius_conf->msg_dumps = 1; 808 if (cli_addr) { 809 if (hostapd_parse_ip_addr(cli_addr, 810 &e->radius_conf->client_addr) == 0) 811 e->radius_conf->force_client_addr = 1; 812 else { 813 wpa_printf(MSG_ERROR, "Invalid IP address '%s'", 814 cli_addr); 815 assert(0); 816 } 817 } 818 819 e->radius = radius_client_init(wpa_s, e->radius_conf); 820 assert(e->radius != NULL); 821 822 res = radius_client_register(e->radius, RADIUS_AUTH, 823 ieee802_1x_receive_auth, e); 824 assert(res == 0); 825} 826 827 828static int scard_test(void) 829{ 830 struct scard_data *scard; 831 size_t len; 832 char imsi[20]; 833 unsigned char _rand[16]; 834#ifdef PCSC_FUNCS 835 unsigned char sres[4]; 836 unsigned char kc[8]; 837#endif /* PCSC_FUNCS */ 838#define num_triplets 5 839 unsigned char rand_[num_triplets][16]; 840 unsigned char sres_[num_triplets][4]; 841 unsigned char kc_[num_triplets][8]; 842 int i, res; 843 size_t j; 844 845#define AKA_RAND_LEN 16 846#define AKA_AUTN_LEN 16 847#define AKA_AUTS_LEN 14 848#define RES_MAX_LEN 16 849#define IK_LEN 16 850#define CK_LEN 16 851 unsigned char aka_rand[AKA_RAND_LEN]; 852 unsigned char aka_autn[AKA_AUTN_LEN]; 853 unsigned char aka_auts[AKA_AUTS_LEN]; 854 unsigned char aka_res[RES_MAX_LEN]; 855 size_t aka_res_len; 856 unsigned char aka_ik[IK_LEN]; 857 unsigned char aka_ck[CK_LEN]; 858 859 scard = scard_init(SCARD_TRY_BOTH); 860 if (scard == NULL) 861 return -1; 862 if (scard_set_pin(scard, "1234")) { 863 wpa_printf(MSG_WARNING, "PIN validation failed"); 864 scard_deinit(scard); 865 return -1; 866 } 867 868 len = sizeof(imsi); 869 if (scard_get_imsi(scard, imsi, &len)) 870 goto failed; 871 wpa_hexdump_ascii(MSG_DEBUG, "SCARD: IMSI", (u8 *) imsi, len); 872 /* NOTE: Permanent Username: 1 | IMSI */ 873 874 wpa_printf(MSG_DEBUG, "SCARD: MNC length %d", 875 scard_get_mnc_len(scard)); 876 877 os_memset(_rand, 0, sizeof(_rand)); 878 if (scard_gsm_auth(scard, _rand, sres, kc)) 879 goto failed; 880 881 os_memset(_rand, 0xff, sizeof(_rand)); 882 if (scard_gsm_auth(scard, _rand, sres, kc)) 883 goto failed; 884 885 for (i = 0; i < num_triplets; i++) { 886 os_memset(rand_[i], i, sizeof(rand_[i])); 887 if (scard_gsm_auth(scard, rand_[i], sres_[i], kc_[i])) 888 goto failed; 889 } 890 891 for (i = 0; i < num_triplets; i++) { 892 printf("1"); 893 for (j = 0; j < len; j++) 894 printf("%c", imsi[j]); 895 printf(","); 896 for (j = 0; j < 16; j++) 897 printf("%02X", rand_[i][j]); 898 printf(","); 899 for (j = 0; j < 4; j++) 900 printf("%02X", sres_[i][j]); 901 printf(","); 902 for (j = 0; j < 8; j++) 903 printf("%02X", kc_[i][j]); 904 printf("\n"); 905 } 906 907 wpa_printf(MSG_DEBUG, "Trying to use UMTS authentication"); 908 909 /* seq 39 (0x28) */ 910 os_memset(aka_rand, 0xaa, 16); 911 os_memcpy(aka_autn, "\x86\x71\x31\xcb\xa2\xfc\x61\xdf" 912 "\xa3\xb3\x97\x9d\x07\x32\xa2\x12", 16); 913 914 res = scard_umts_auth(scard, aka_rand, aka_autn, aka_res, &aka_res_len, 915 aka_ik, aka_ck, aka_auts); 916 if (res == 0) { 917 wpa_printf(MSG_DEBUG, "UMTS auth completed successfully"); 918 wpa_hexdump(MSG_DEBUG, "RES", aka_res, aka_res_len); 919 wpa_hexdump(MSG_DEBUG, "IK", aka_ik, IK_LEN); 920 wpa_hexdump(MSG_DEBUG, "CK", aka_ck, CK_LEN); 921 } else if (res == -2) { 922 wpa_printf(MSG_DEBUG, "UMTS auth resulted in synchronization " 923 "failure"); 924 wpa_hexdump(MSG_DEBUG, "AUTS", aka_auts, AKA_AUTS_LEN); 925 } else { 926 wpa_printf(MSG_DEBUG, "UMTS auth failed"); 927 } 928 929failed: 930 scard_deinit(scard); 931 932 return 0; 933#undef num_triplets 934} 935 936 937static int scard_get_triplets(int argc, char *argv[]) 938{ 939 struct scard_data *scard; 940 size_t len; 941 char imsi[20]; 942 unsigned char _rand[16]; 943 unsigned char sres[4]; 944 unsigned char kc[8]; 945 int num_triplets; 946 int i; 947 size_t j; 948 949 if (argc < 2 || ((num_triplets = atoi(argv[1])) <= 0)) { 950 printf("invalid parameters for sim command\n"); 951 return -1; 952 } 953 954 if (argc <= 2 || os_strcmp(argv[2], "debug") != 0) { 955 /* disable debug output */ 956 wpa_debug_level = 99; 957 } 958 959 scard = scard_init(SCARD_GSM_SIM_ONLY); 960 if (scard == NULL) { 961 printf("Failed to open smartcard connection\n"); 962 return -1; 963 } 964 if (scard_set_pin(scard, argv[0])) { 965 wpa_printf(MSG_WARNING, "PIN validation failed"); 966 scard_deinit(scard); 967 return -1; 968 } 969 970 len = sizeof(imsi); 971 if (scard_get_imsi(scard, imsi, &len)) { 972 scard_deinit(scard); 973 return -1; 974 } 975 976 for (i = 0; i < num_triplets; i++) { 977 os_memset(_rand, i, sizeof(_rand)); 978 if (scard_gsm_auth(scard, _rand, sres, kc)) 979 break; 980 981 /* IMSI:Kc:SRES:RAND */ 982 for (j = 0; j < len; j++) 983 printf("%c", imsi[j]); 984 printf(":"); 985 for (j = 0; j < 8; j++) 986 printf("%02X", kc[j]); 987 printf(":"); 988 for (j = 0; j < 4; j++) 989 printf("%02X", sres[j]); 990 printf(":"); 991 for (j = 0; j < 16; j++) 992 printf("%02X", _rand[j]); 993 printf("\n"); 994 } 995 996 scard_deinit(scard); 997 998 return 0; 999} 1000 1001 1002static void eapol_test_terminate(int sig, void *signal_ctx) 1003{ 1004 struct wpa_supplicant *wpa_s = signal_ctx; 1005 wpa_msg(wpa_s, MSG_INFO, "Signal %d received - terminating", sig); 1006 eloop_terminate(); 1007} 1008 1009 1010static void usage(void) 1011{ 1012 printf("usage:\n" 1013 "eapol_test [-nWS] -c<conf> [-a<AS IP>] [-p<AS port>] " 1014 "[-s<AS secret>]\\\n" 1015 " [-r<count>] [-t<timeout>] [-C<Connect-Info>] \\\n" 1016 " [-M<client MAC address>] [-o<server cert file] \\\n" 1017 " [-N<attr spec>] \\\n" 1018 " [-A<client IP>]\n" 1019 "eapol_test scard\n" 1020 "eapol_test sim <PIN> <num triplets> [debug]\n" 1021 "\n"); 1022 printf("options:\n" 1023 " -c<conf> = configuration file\n" 1024 " -a<AS IP> = IP address of the authentication server, " 1025 "default 127.0.0.1\n" 1026 " -p<AS port> = UDP port of the authentication server, " 1027 "default 1812\n" 1028 " -s<AS secret> = shared secret with the authentication " 1029 "server, default 'radius'\n" 1030 " -A<client IP> = IP address of the client, default: select " 1031 "automatically\n" 1032 " -r<count> = number of re-authentications\n" 1033 " -W = wait for a control interface monitor before starting\n" 1034 " -S = save configuration after authentication\n" 1035 " -n = no MPPE keys expected\n" 1036 " -t<timeout> = sets timeout in seconds (default: 30 s)\n" 1037 " -C<Connect-Info> = RADIUS Connect-Info (default: " 1038 "CONNECT 11Mbps 802.11b)\n" 1039 " -M<client MAC address> = Set own MAC address " 1040 "(Calling-Station-Id,\n" 1041 " default: 02:00:00:00:00:01)\n" 1042 " -o<server cert file> = Write received server certificate\n" 1043 " chain to the specified file\n" 1044 " -N<attr spec> = send arbitrary attribute specified by:\n" 1045 " attr_id:syntax:value or attr_id\n" 1046 " attr_id - number id of the attribute\n" 1047 " syntax - one of: s, d, x\n" 1048 " s = string\n" 1049 " d = integer\n" 1050 " x = octet string\n" 1051 " value - attribute value.\n" 1052 " When only attr_id is specified, NULL will be used as " 1053 "value.\n" 1054 " Multiple attributes can be specified by using the " 1055 "option several times.\n"); 1056} 1057 1058 1059int main(int argc, char *argv[]) 1060{ 1061 struct wpa_supplicant wpa_s; 1062 int c, ret = 1, wait_for_monitor = 0, save_config = 0; 1063 char *as_addr = "127.0.0.1"; 1064 int as_port = 1812; 1065 char *as_secret = "radius"; 1066 char *cli_addr = NULL; 1067 char *conf = NULL; 1068 int timeout = 30; 1069 char *pos; 1070 struct extra_radius_attr *p = NULL, *p1; 1071 1072 if (os_program_init()) 1073 return -1; 1074 1075 hostapd_logger_register_cb(hostapd_logger_cb); 1076 1077 os_memset(&eapol_test, 0, sizeof(eapol_test)); 1078 eapol_test.connect_info = "CONNECT 11Mbps 802.11b"; 1079 os_memcpy(eapol_test.own_addr, "\x02\x00\x00\x00\x00\x01", ETH_ALEN); 1080 1081 wpa_debug_level = 0; 1082 wpa_debug_show_keys = 1; 1083 1084 for (;;) { 1085 c = getopt(argc, argv, "a:A:c:C:M:nN:o:p:r:s:St:W"); 1086 if (c < 0) 1087 break; 1088 switch (c) { 1089 case 'a': 1090 as_addr = optarg; 1091 break; 1092 case 'A': 1093 cli_addr = optarg; 1094 break; 1095 case 'c': 1096 conf = optarg; 1097 break; 1098 case 'C': 1099 eapol_test.connect_info = optarg; 1100 break; 1101 case 'M': 1102 if (hwaddr_aton(optarg, eapol_test.own_addr)) { 1103 usage(); 1104 return -1; 1105 } 1106 break; 1107 case 'n': 1108 eapol_test.no_mppe_keys++; 1109 break; 1110 case 'o': 1111 if (eapol_test.server_cert_file) 1112 fclose(eapol_test.server_cert_file); 1113 eapol_test.server_cert_file = fopen(optarg, "w"); 1114 if (eapol_test.server_cert_file == NULL) { 1115 printf("Could not open '%s' for writing\n", 1116 optarg); 1117 return -1; 1118 } 1119 break; 1120 case 'p': 1121 as_port = atoi(optarg); 1122 break; 1123 case 'r': 1124 eapol_test.eapol_test_num_reauths = atoi(optarg); 1125 break; 1126 case 's': 1127 as_secret = optarg; 1128 break; 1129 case 'S': 1130 save_config++; 1131 break; 1132 case 't': 1133 timeout = atoi(optarg); 1134 break; 1135 case 'W': 1136 wait_for_monitor++; 1137 break; 1138 case 'N': 1139 p1 = os_zalloc(sizeof(p1)); 1140 if (p1 == NULL) 1141 break; 1142 if (!p) 1143 eapol_test.extra_attrs = p1; 1144 else 1145 p->next = p1; 1146 p = p1; 1147 1148 p->type = atoi(optarg); 1149 pos = os_strchr(optarg, ':'); 1150 if (pos == NULL) { 1151 p->syntax = 'n'; 1152 p->data = NULL; 1153 break; 1154 } 1155 1156 pos++; 1157 if (pos[0] == '\0' || pos[1] != ':') { 1158 printf("Incorrect format of attribute " 1159 "specification\n"); 1160 break; 1161 } 1162 1163 p->syntax = pos[0]; 1164 p->data = pos + 2; 1165 break; 1166 default: 1167 usage(); 1168 return -1; 1169 } 1170 } 1171 1172 if (argc > optind && os_strcmp(argv[optind], "scard") == 0) { 1173 return scard_test(); 1174 } 1175 1176 if (argc > optind && os_strcmp(argv[optind], "sim") == 0) { 1177 return scard_get_triplets(argc - optind - 1, 1178 &argv[optind + 1]); 1179 } 1180 1181 if (conf == NULL) { 1182 usage(); 1183 printf("Configuration file is required.\n"); 1184 return -1; 1185 } 1186 1187 if (eap_register_methods()) { 1188 wpa_printf(MSG_ERROR, "Failed to register EAP methods"); 1189 return -1; 1190 } 1191 1192 if (eloop_init()) { 1193 wpa_printf(MSG_ERROR, "Failed to initialize event loop"); 1194 return -1; 1195 } 1196 1197 os_memset(&wpa_s, 0, sizeof(wpa_s)); 1198 eapol_test.wpa_s = &wpa_s; 1199 wpa_s.conf = wpa_config_read(conf); 1200 if (wpa_s.conf == NULL) { 1201 printf("Failed to parse configuration file '%s'.\n", conf); 1202 return -1; 1203 } 1204 if (wpa_s.conf->ssid == NULL) { 1205 printf("No networks defined.\n"); 1206 return -1; 1207 } 1208 1209 wpa_init_conf(&eapol_test, &wpa_s, as_addr, as_port, as_secret, 1210 cli_addr); 1211 wpa_s.ctrl_iface = wpa_supplicant_ctrl_iface_init(&wpa_s); 1212 if (wpa_s.ctrl_iface == NULL) { 1213 printf("Failed to initialize control interface '%s'.\n" 1214 "You may have another eapol_test process already " 1215 "running or the file was\n" 1216 "left by an unclean termination of eapol_test in " 1217 "which case you will need\n" 1218 "to manually remove this file before starting " 1219 "eapol_test again.\n", 1220 wpa_s.conf->ctrl_interface); 1221 return -1; 1222 } 1223 if (wpa_supplicant_scard_init(&wpa_s, wpa_s.conf->ssid)) 1224 return -1; 1225 1226 if (test_eapol(&eapol_test, &wpa_s, wpa_s.conf->ssid)) 1227 return -1; 1228 1229 if (wait_for_monitor) 1230 wpa_supplicant_ctrl_iface_wait(wpa_s.ctrl_iface); 1231 1232 eloop_register_timeout(timeout, 0, eapol_test_timeout, &eapol_test, 1233 NULL); 1234 eloop_register_timeout(0, 0, send_eap_request_identity, &wpa_s, NULL); 1235 eloop_register_signal_terminate(eapol_test_terminate, &wpa_s); 1236 eloop_register_signal_reconfig(eapol_test_terminate, &wpa_s); 1237 eloop_run(); 1238 1239 eloop_cancel_timeout(eapol_test_timeout, &eapol_test, NULL); 1240 eloop_cancel_timeout(eapol_sm_reauth, &eapol_test, NULL); 1241 1242 if (eapol_test_compare_pmk(&eapol_test) == 0 || 1243 eapol_test.no_mppe_keys) 1244 ret = 0; 1245 if (eapol_test.auth_timed_out) 1246 ret = -2; 1247 if (eapol_test.radius_access_reject_received) 1248 ret = -3; 1249 1250 if (save_config) 1251 wpa_config_write(conf, wpa_s.conf); 1252 1253 test_eapol_clean(&eapol_test, &wpa_s); 1254 1255 eap_peer_unregister_methods(); 1256#ifdef CONFIG_AP 1257 eap_server_unregister_methods(); 1258#endif /* CONFIG_AP */ 1259 1260 eloop_destroy(); 1261 1262 if (eapol_test.server_cert_file) 1263 fclose(eapol_test.server_cert_file); 1264 1265 printf("MPPE keys OK: %d mismatch: %d\n", 1266 eapol_test.num_mppe_ok, eapol_test.num_mppe_mismatch); 1267 if (eapol_test.num_mppe_mismatch) 1268 ret = -4; 1269 if (ret) 1270 printf("FAILURE\n"); 1271 else 1272 printf("SUCCESS\n"); 1273 1274 os_program_deinit(); 1275 1276 return ret; 1277} 1278