1 /*
2 * WPA Supplicant - test code
3 * Copyright (c) 2003-2006, 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_sm.h"
24 #include "eap.h"
25 #include "eloop.h"
26 #include "wpa.h"
27 #include "eap_i.h"
28 #include "wpa_supplicant.h"
29 #include "wpa_supplicant_i.h"
30 #include "radius.h"
31 #include "radius_client.h"
32 #include "l2_packet.h"
33 #include "ctrl_iface.h"
34 #include "pcsc_funcs.h"
35
36
37 extern int wpa_debug_level;
38 extern int wpa_debug_show_keys;
39
40 struct wpa_driver_ops *wpa_supplicant_drivers[] = { NULL };
41
42
43 struct eapol_test_data {
44 struct wpa_supplicant *wpa_s;
45
46 int eapol_test_num_reauths;
47 int no_mppe_keys;
48 int num_mppe_ok, num_mppe_mismatch;
49
50 u8 radius_identifier;
51 struct radius_msg *last_recv_radius;
52 struct in_addr own_ip_addr;
53 struct radius_client_data *radius;
54 struct hostapd_radius_servers *radius_conf;
55
56 u8 *last_eap_radius; /* last received EAP Response from Authentication
57 * Server */
58 size_t last_eap_radius_len;
59
60 u8 authenticator_pmk[PMK_LEN];
61 size_t authenticator_pmk_len;
62 int radius_access_accept_received;
63 int radius_access_reject_received;
64 int auth_timed_out;
65
66 u8 *eap_identity;
67 size_t eap_identity_len;
68
69 char *connect_info;
70 u8 own_addr[ETH_ALEN];
71 };
72
73 static struct eapol_test_data eapol_test;
74
75
76 static void send_eap_request_identity(void *eloop_ctx, void *timeout_ctx);
77
78
hostapd_logger(void * ctx,const u8 * addr,unsigned int module,int level,char * fmt,...)79 void hostapd_logger(void *ctx, const u8 *addr, unsigned int module, int level,
80 char *fmt, ...)
81 {
82 char *format;
83 int maxlen;
84 va_list ap;
85
86 maxlen = os_strlen(fmt) + 100;
87 format = os_malloc(maxlen);
88 if (!format)
89 return;
90
91 va_start(ap, fmt);
92
93
94 if (addr)
95 os_snprintf(format, maxlen, "STA " MACSTR ": %s",
96 MAC2STR(addr), fmt);
97 else
98 os_snprintf(format, maxlen, "%s", fmt);
99
100 vprintf(format, ap);
101 printf("\n");
102
103 os_free(format);
104
105 va_end(ap);
106 }
107
108
hostapd_ip_txt(const struct hostapd_ip_addr * addr,char * buf,size_t buflen)109 const char * hostapd_ip_txt(const struct hostapd_ip_addr *addr, char *buf,
110 size_t buflen)
111 {
112 if (buflen == 0 || addr == NULL)
113 return NULL;
114
115 if (addr->af == AF_INET) {
116 os_snprintf(buf, buflen, "%s", inet_ntoa(addr->u.v4));
117 } else {
118 buf[0] = '\0';
119 }
120 #ifdef CONFIG_IPV6
121 if (addr->af == AF_INET6) {
122 if (inet_ntop(AF_INET6, &addr->u.v6, buf, buflen) == NULL)
123 buf[0] = '\0';
124 }
125 #endif /* CONFIG_IPV6 */
126
127 return buf;
128 }
129
130
hostapd_ip_diff(struct hostapd_ip_addr * a,struct hostapd_ip_addr * b)131 int hostapd_ip_diff(struct hostapd_ip_addr *a, struct hostapd_ip_addr *b)
132 {
133 return 0;
134 }
135
136
ieee802_1x_encapsulate_radius(struct eapol_test_data * e,const u8 * eap,size_t len)137 static void ieee802_1x_encapsulate_radius(struct eapol_test_data *e,
138 const u8 *eap, size_t len)
139 {
140 struct radius_msg *msg;
141 char buf[128];
142 const struct eap_hdr *hdr;
143 const u8 *pos;
144
145 wpa_printf(MSG_DEBUG, "Encapsulating EAP message into a RADIUS "
146 "packet");
147
148 e->radius_identifier = radius_client_get_id(e->radius);
149 msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST,
150 e->radius_identifier);
151 if (msg == NULL) {
152 printf("Could not create net RADIUS packet\n");
153 return;
154 }
155
156 radius_msg_make_authenticator(msg, (u8 *) e, sizeof(*e));
157
158 hdr = (const struct eap_hdr *) eap;
159 pos = (const u8 *) (hdr + 1);
160 if (len > sizeof(*hdr) && hdr->code == EAP_CODE_RESPONSE &&
161 pos[0] == EAP_TYPE_IDENTITY) {
162 pos++;
163 os_free(e->eap_identity);
164 e->eap_identity_len = len - sizeof(*hdr) - 1;
165 e->eap_identity = os_malloc(e->eap_identity_len);
166 if (e->eap_identity) {
167 os_memcpy(e->eap_identity, pos, e->eap_identity_len);
168 wpa_hexdump(MSG_DEBUG, "Learned identity from "
169 "EAP-Response-Identity",
170 e->eap_identity, e->eap_identity_len);
171 }
172 }
173
174 if (e->eap_identity &&
175 !radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME,
176 e->eap_identity, e->eap_identity_len)) {
177 printf("Could not add User-Name\n");
178 goto fail;
179 }
180
181 if (!radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IP_ADDRESS,
182 (u8 *) &e->own_ip_addr, 4)) {
183 printf("Could not add NAS-IP-Address\n");
184 goto fail;
185 }
186
187 os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
188 MAC2STR(e->wpa_s->own_addr));
189 if (!radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID,
190 (u8 *) buf, os_strlen(buf))) {
191 printf("Could not add Calling-Station-Id\n");
192 goto fail;
193 }
194
195 /* TODO: should probably check MTU from driver config; 2304 is max for
196 * IEEE 802.11, but use 1400 to avoid problems with too large packets
197 */
198 if (!radius_msg_add_attr_int32(msg, RADIUS_ATTR_FRAMED_MTU, 1400)) {
199 printf("Could not add Framed-MTU\n");
200 goto fail;
201 }
202
203 if (!radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT_TYPE,
204 RADIUS_NAS_PORT_TYPE_IEEE_802_11)) {
205 printf("Could not add NAS-Port-Type\n");
206 goto fail;
207 }
208
209 os_snprintf(buf, sizeof(buf), "%s", e->connect_info);
210 if (!radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO,
211 (u8 *) buf, os_strlen(buf))) {
212 printf("Could not add Connect-Info\n");
213 goto fail;
214 }
215
216 if (eap && !radius_msg_add_eap(msg, eap, len)) {
217 printf("Could not add EAP-Message\n");
218 goto fail;
219 }
220
221 /* State attribute must be copied if and only if this packet is
222 * Access-Request reply to the previous Access-Challenge */
223 if (e->last_recv_radius && e->last_recv_radius->hdr->code ==
224 RADIUS_CODE_ACCESS_CHALLENGE) {
225 int res = radius_msg_copy_attr(msg, e->last_recv_radius,
226 RADIUS_ATTR_STATE);
227 if (res < 0) {
228 printf("Could not copy State attribute from previous "
229 "Access-Challenge\n");
230 goto fail;
231 }
232 if (res > 0) {
233 wpa_printf(MSG_DEBUG, " Copied RADIUS State "
234 "Attribute");
235 }
236 }
237
238 radius_client_send(e->radius, msg, RADIUS_AUTH, e->wpa_s->own_addr);
239 return;
240
241 fail:
242 radius_msg_free(msg);
243 os_free(msg);
244 }
245
246
eapol_test_eapol_send(void * ctx,int type,const u8 * buf,size_t len)247 static int eapol_test_eapol_send(void *ctx, int type, const u8 *buf,
248 size_t len)
249 {
250 /* struct wpa_supplicant *wpa_s = ctx; */
251 printf("WPA: eapol_test_eapol_send(type=%d len=%lu)\n",
252 type, (unsigned long) len);
253 if (type == IEEE802_1X_TYPE_EAP_PACKET) {
254 wpa_hexdump(MSG_DEBUG, "TX EAP -> RADIUS", buf, len);
255 ieee802_1x_encapsulate_radius(&eapol_test, buf, len);
256 }
257 return 0;
258 }
259
260
eapol_test_set_config_blob(void * ctx,struct wpa_config_blob * blob)261 static void eapol_test_set_config_blob(void *ctx,
262 struct wpa_config_blob *blob)
263 {
264 struct wpa_supplicant *wpa_s = ctx;
265 wpa_config_set_blob(wpa_s->conf, blob);
266 }
267
268
269 static const struct wpa_config_blob *
eapol_test_get_config_blob(void * ctx,const char * name)270 eapol_test_get_config_blob(void *ctx, const char *name)
271 {
272 struct wpa_supplicant *wpa_s = ctx;
273 return wpa_config_get_blob(wpa_s->conf, name);
274 }
275
276
eapol_test_eapol_done_cb(void * ctx)277 static void eapol_test_eapol_done_cb(void *ctx)
278 {
279 printf("WPA: EAPOL processing complete\n");
280 }
281
282
eapol_sm_reauth(void * eloop_ctx,void * timeout_ctx)283 static void eapol_sm_reauth(void *eloop_ctx, void *timeout_ctx)
284 {
285 struct eapol_test_data *e = eloop_ctx;
286 printf("\n\n\n\n\neapol_test: Triggering EAP reauthentication\n\n");
287 e->radius_access_accept_received = 0;
288 send_eap_request_identity(e->wpa_s, NULL);
289 }
290
291
eapol_test_compare_pmk(struct eapol_test_data * e)292 static int eapol_test_compare_pmk(struct eapol_test_data *e)
293 {
294 u8 pmk[PMK_LEN];
295 int ret = 1;
296
297 if (eapol_sm_get_key(e->wpa_s->eapol, pmk, PMK_LEN) == 0) {
298 wpa_hexdump(MSG_DEBUG, "PMK from EAPOL", pmk, PMK_LEN);
299 if (os_memcmp(pmk, e->authenticator_pmk, PMK_LEN) != 0) {
300 printf("WARNING: PMK mismatch\n");
301 wpa_hexdump(MSG_DEBUG, "PMK from AS",
302 e->authenticator_pmk, PMK_LEN);
303 } else if (e->radius_access_accept_received)
304 ret = 0;
305 } else if (e->authenticator_pmk_len == 16 &&
306 eapol_sm_get_key(e->wpa_s->eapol, pmk, 16) == 0) {
307 wpa_hexdump(MSG_DEBUG, "LEAP PMK from EAPOL", pmk, 16);
308 if (os_memcmp(pmk, e->authenticator_pmk, 16) != 0) {
309 printf("WARNING: PMK mismatch\n");
310 wpa_hexdump(MSG_DEBUG, "PMK from AS",
311 e->authenticator_pmk, 16);
312 } else if (e->radius_access_accept_received)
313 ret = 0;
314 } else if (e->radius_access_accept_received && e->no_mppe_keys) {
315 /* No keying material expected */
316 ret = 0;
317 }
318
319 if (ret && !e->no_mppe_keys)
320 e->num_mppe_mismatch++;
321 else if (!e->no_mppe_keys)
322 e->num_mppe_ok++;
323
324 return ret;
325 }
326
327
eapol_sm_cb(struct eapol_sm * eapol,int success,void * ctx)328 static void eapol_sm_cb(struct eapol_sm *eapol, int success, void *ctx)
329 {
330 struct eapol_test_data *e = ctx;
331 printf("eapol_sm_cb: success=%d\n", success);
332 e->eapol_test_num_reauths--;
333 if (e->eapol_test_num_reauths < 0)
334 eloop_terminate();
335 else {
336 eapol_test_compare_pmk(e);
337 eloop_register_timeout(0, 100000, eapol_sm_reauth, e, NULL);
338 }
339 }
340
341
test_eapol(struct eapol_test_data * e,struct wpa_supplicant * wpa_s,struct wpa_ssid * ssid)342 static int test_eapol(struct eapol_test_data *e, struct wpa_supplicant *wpa_s,
343 struct wpa_ssid *ssid)
344 {
345 struct eapol_config eapol_conf;
346 struct eapol_ctx *ctx;
347
348 ctx = os_zalloc(sizeof(*ctx));
349 if (ctx == NULL) {
350 printf("Failed to allocate EAPOL context.\n");
351 return -1;
352 }
353 ctx->ctx = wpa_s;
354 ctx->msg_ctx = wpa_s;
355 ctx->scard_ctx = wpa_s->scard;
356 ctx->cb = eapol_sm_cb;
357 ctx->cb_ctx = e;
358 ctx->eapol_send_ctx = wpa_s;
359 ctx->preauth = 0;
360 ctx->eapol_done_cb = eapol_test_eapol_done_cb;
361 ctx->eapol_send = eapol_test_eapol_send;
362 ctx->set_config_blob = eapol_test_set_config_blob;
363 ctx->get_config_blob = eapol_test_get_config_blob;
364 ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path;
365 ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path;
366 ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path;
367
368 wpa_s->eapol = eapol_sm_init(ctx);
369 if (wpa_s->eapol == NULL) {
370 os_free(ctx);
371 printf("Failed to initialize EAPOL state machines.\n");
372 return -1;
373 }
374
375 wpa_s->current_ssid = ssid;
376 os_memset(&eapol_conf, 0, sizeof(eapol_conf));
377 eapol_conf.accept_802_1x_keys = 1;
378 eapol_conf.required_keys = 0;
379 eapol_conf.fast_reauth = wpa_s->conf->fast_reauth;
380 eapol_conf.workaround = ssid->eap_workaround;
381 eapol_sm_notify_config(wpa_s->eapol, ssid, &eapol_conf);
382 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
383
384
385 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
386 /* 802.1X::portControl = Auto */
387 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
388
389 return 0;
390 }
391
392
test_eapol_clean(struct eapol_test_data * e,struct wpa_supplicant * wpa_s)393 static void test_eapol_clean(struct eapol_test_data *e,
394 struct wpa_supplicant *wpa_s)
395 {
396 radius_client_deinit(e->radius);
397 os_free(e->last_eap_radius);
398 if (e->last_recv_radius) {
399 radius_msg_free(e->last_recv_radius);
400 os_free(e->last_recv_radius);
401 }
402 os_free(e->eap_identity);
403 e->eap_identity = NULL;
404 eapol_sm_deinit(wpa_s->eapol);
405 wpa_s->eapol = NULL;
406 if (e->radius_conf && e->radius_conf->auth_server) {
407 os_free(e->radius_conf->auth_server->shared_secret);
408 os_free(e->radius_conf->auth_server);
409 }
410 os_free(e->radius_conf);
411 e->radius_conf = NULL;
412 scard_deinit(wpa_s->scard);
413 if (wpa_s->ctrl_iface) {
414 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
415 wpa_s->ctrl_iface = NULL;
416 }
417 wpa_config_free(wpa_s->conf);
418 }
419
420
send_eap_request_identity(void * eloop_ctx,void * timeout_ctx)421 static void send_eap_request_identity(void *eloop_ctx, void *timeout_ctx)
422 {
423 struct wpa_supplicant *wpa_s = eloop_ctx;
424 u8 buf[100], *pos;
425 struct ieee802_1x_hdr *hdr;
426 struct eap_hdr *eap;
427
428 hdr = (struct ieee802_1x_hdr *) buf;
429 hdr->version = EAPOL_VERSION;
430 hdr->type = IEEE802_1X_TYPE_EAP_PACKET;
431 hdr->length = htons(5);
432
433 eap = (struct eap_hdr *) (hdr + 1);
434 eap->code = EAP_CODE_REQUEST;
435 eap->identifier = 0;
436 eap->length = htons(5);
437 pos = (u8 *) (eap + 1);
438 *pos = EAP_TYPE_IDENTITY;
439
440 printf("Sending fake EAP-Request-Identity\n");
441 eapol_sm_rx_eapol(wpa_s->eapol, wpa_s->bssid, buf,
442 sizeof(*hdr) + 5);
443 }
444
445
eapol_test_timeout(void * eloop_ctx,void * timeout_ctx)446 static void eapol_test_timeout(void *eloop_ctx, void *timeout_ctx)
447 {
448 struct eapol_test_data *e = eloop_ctx;
449 printf("EAPOL test timed out\n");
450 e->auth_timed_out = 1;
451 eloop_terminate();
452 }
453
454
eap_type_text(u8 type)455 static char *eap_type_text(u8 type)
456 {
457 switch (type) {
458 case EAP_TYPE_IDENTITY: return "Identity";
459 case EAP_TYPE_NOTIFICATION: return "Notification";
460 case EAP_TYPE_NAK: return "Nak";
461 case EAP_TYPE_TLS: return "TLS";
462 case EAP_TYPE_TTLS: return "TTLS";
463 case EAP_TYPE_PEAP: return "PEAP";
464 case EAP_TYPE_SIM: return "SIM";
465 case EAP_TYPE_GTC: return "GTC";
466 case EAP_TYPE_MD5: return "MD5";
467 case EAP_TYPE_OTP: return "OTP";
468 case EAP_TYPE_FAST: return "FAST";
469 case EAP_TYPE_SAKE: return "SAKE";
470 case EAP_TYPE_PSK: return "PSK";
471 default: return "Unknown";
472 }
473 }
474
475
ieee802_1x_decapsulate_radius(struct eapol_test_data * e)476 static void ieee802_1x_decapsulate_radius(struct eapol_test_data *e)
477 {
478 u8 *eap;
479 size_t len;
480 struct eap_hdr *hdr;
481 int eap_type = -1;
482 char buf[64];
483 struct radius_msg *msg;
484
485 if (e->last_recv_radius == NULL)
486 return;
487
488 msg = e->last_recv_radius;
489
490 eap = radius_msg_get_eap(msg, &len);
491 if (eap == NULL) {
492 /* draft-aboba-radius-rfc2869bis-20.txt, Chap. 2.6.3:
493 * RADIUS server SHOULD NOT send Access-Reject/no EAP-Message
494 * attribute */
495 wpa_printf(MSG_DEBUG, "could not extract "
496 "EAP-Message from RADIUS message");
497 os_free(e->last_eap_radius);
498 e->last_eap_radius = NULL;
499 e->last_eap_radius_len = 0;
500 return;
501 }
502
503 if (len < sizeof(*hdr)) {
504 wpa_printf(MSG_DEBUG, "too short EAP packet "
505 "received from authentication server");
506 os_free(eap);
507 return;
508 }
509
510 if (len > sizeof(*hdr))
511 eap_type = eap[sizeof(*hdr)];
512
513 hdr = (struct eap_hdr *) eap;
514 switch (hdr->code) {
515 case EAP_CODE_REQUEST:
516 os_snprintf(buf, sizeof(buf), "EAP-Request-%s (%d)",
517 eap_type >= 0 ? eap_type_text(eap_type) : "??",
518 eap_type);
519 break;
520 case EAP_CODE_RESPONSE:
521 os_snprintf(buf, sizeof(buf), "EAP Response-%s (%d)",
522 eap_type >= 0 ? eap_type_text(eap_type) : "??",
523 eap_type);
524 break;
525 case EAP_CODE_SUCCESS:
526 os_snprintf(buf, sizeof(buf), "EAP Success");
527 /* LEAP uses EAP Success within an authentication, so must not
528 * stop here with eloop_terminate(); */
529 break;
530 case EAP_CODE_FAILURE:
531 os_snprintf(buf, sizeof(buf), "EAP Failure");
532 eloop_terminate();
533 break;
534 default:
535 os_snprintf(buf, sizeof(buf), "unknown EAP code");
536 wpa_hexdump(MSG_DEBUG, "Decapsulated EAP packet", eap, len);
537 break;
538 }
539 wpa_printf(MSG_DEBUG, "decapsulated EAP packet (code=%d "
540 "id=%d len=%d) from RADIUS server: %s",
541 hdr->code, hdr->identifier, ntohs(hdr->length), buf);
542
543 /* sta->eapol_sm->be_auth.idFromServer = hdr->identifier; */
544
545 os_free(e->last_eap_radius);
546 e->last_eap_radius = eap;
547 e->last_eap_radius_len = len;
548
549 {
550 struct ieee802_1x_hdr *dot1x;
551 dot1x = os_malloc(sizeof(*dot1x) + len);
552 assert(dot1x != NULL);
553 dot1x->version = EAPOL_VERSION;
554 dot1x->type = IEEE802_1X_TYPE_EAP_PACKET;
555 dot1x->length = htons(len);
556 os_memcpy((u8 *) (dot1x + 1), eap, len);
557 eapol_sm_rx_eapol(e->wpa_s->eapol, e->wpa_s->bssid,
558 (u8 *) dot1x, sizeof(*dot1x) + len);
559 os_free(dot1x);
560 }
561 }
562
563
ieee802_1x_get_keys(struct eapol_test_data * e,struct radius_msg * msg,struct radius_msg * req,u8 * shared_secret,size_t shared_secret_len)564 static void ieee802_1x_get_keys(struct eapol_test_data *e,
565 struct radius_msg *msg, struct radius_msg *req,
566 u8 *shared_secret, size_t shared_secret_len)
567 {
568 struct radius_ms_mppe_keys *keys;
569
570 keys = radius_msg_get_ms_keys(msg, req, shared_secret,
571 shared_secret_len);
572 if (keys && keys->send == NULL && keys->recv == NULL) {
573 os_free(keys);
574 keys = radius_msg_get_cisco_keys(msg, req, shared_secret,
575 shared_secret_len);
576 }
577
578 if (keys) {
579 if (keys->send) {
580 wpa_hexdump(MSG_DEBUG, "MS-MPPE-Send-Key (sign)",
581 keys->send, keys->send_len);
582 }
583 if (keys->recv) {
584 wpa_hexdump(MSG_DEBUG, "MS-MPPE-Recv-Key (crypt)",
585 keys->recv, keys->recv_len);
586 e->authenticator_pmk_len =
587 keys->recv_len > PMK_LEN ? PMK_LEN :
588 keys->recv_len;
589 os_memcpy(e->authenticator_pmk, keys->recv,
590 e->authenticator_pmk_len);
591 }
592
593 os_free(keys->send);
594 os_free(keys->recv);
595 os_free(keys);
596 }
597 }
598
599
600 /* Process the RADIUS frames from Authentication Server */
601 static RadiusRxResult
ieee802_1x_receive_auth(struct radius_msg * msg,struct radius_msg * req,u8 * shared_secret,size_t shared_secret_len,void * data)602 ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req,
603 u8 *shared_secret, size_t shared_secret_len,
604 void *data)
605 {
606 struct eapol_test_data *e = data;
607
608 /* RFC 2869, Ch. 5.13: valid Message-Authenticator attribute MUST be
609 * present when packet contains an EAP-Message attribute */
610 if (msg->hdr->code == RADIUS_CODE_ACCESS_REJECT &&
611 radius_msg_get_attr(msg, RADIUS_ATTR_MESSAGE_AUTHENTICATOR, NULL,
612 0) < 0 &&
613 radius_msg_get_attr(msg, RADIUS_ATTR_EAP_MESSAGE, NULL, 0) < 0) {
614 wpa_printf(MSG_DEBUG, "Allowing RADIUS "
615 "Access-Reject without Message-Authenticator "
616 "since it does not include EAP-Message\n");
617 } else if (radius_msg_verify(msg, shared_secret, shared_secret_len,
618 req, 1)) {
619 printf("Incoming RADIUS packet did not have correct "
620 "Message-Authenticator - dropped\n");
621 return RADIUS_RX_UNKNOWN;
622 }
623
624 if (msg->hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
625 msg->hdr->code != RADIUS_CODE_ACCESS_REJECT &&
626 msg->hdr->code != RADIUS_CODE_ACCESS_CHALLENGE) {
627 printf("Unknown RADIUS message code\n");
628 return RADIUS_RX_UNKNOWN;
629 }
630
631 e->radius_identifier = -1;
632 wpa_printf(MSG_DEBUG, "RADIUS packet matching with station");
633
634 if (e->last_recv_radius) {
635 radius_msg_free(e->last_recv_radius);
636 os_free(e->last_recv_radius);
637 }
638
639 e->last_recv_radius = msg;
640
641 switch (msg->hdr->code) {
642 case RADIUS_CODE_ACCESS_ACCEPT:
643 e->radius_access_accept_received = 1;
644 ieee802_1x_get_keys(e, msg, req, shared_secret,
645 shared_secret_len);
646 break;
647 case RADIUS_CODE_ACCESS_REJECT:
648 e->radius_access_reject_received = 1;
649 break;
650 }
651
652 ieee802_1x_decapsulate_radius(e);
653
654 if ((msg->hdr->code == RADIUS_CODE_ACCESS_ACCEPT &&
655 e->eapol_test_num_reauths < 0) ||
656 msg->hdr->code == RADIUS_CODE_ACCESS_REJECT) {
657 eloop_terminate();
658 }
659
660 return RADIUS_RX_QUEUED;
661 }
662
663
wpa_init_conf(struct eapol_test_data * e,struct wpa_supplicant * wpa_s,const char * authsrv,int port,const char * secret)664 static void wpa_init_conf(struct eapol_test_data *e,
665 struct wpa_supplicant *wpa_s, const char *authsrv,
666 int port, const char *secret)
667 {
668 struct hostapd_radius_server *as;
669 int res;
670
671 wpa_s->bssid[5] = 1;
672 os_memcpy(wpa_s->own_addr, e->own_addr, ETH_ALEN);
673 e->own_ip_addr.s_addr = htonl((127 << 24) | 1);
674 os_strncpy(wpa_s->ifname, "test", sizeof(wpa_s->ifname));
675
676 e->radius_conf = os_zalloc(sizeof(struct hostapd_radius_servers));
677 assert(e->radius_conf != NULL);
678 e->radius_conf->num_auth_servers = 1;
679 as = os_zalloc(sizeof(struct hostapd_radius_server));
680 assert(as != NULL);
681 #if defined(CONFIG_NATIVE_WINDOWS) || defined(CONFIG_ANSI_C_EXTRA)
682 {
683 int a[4];
684 u8 *pos;
685 sscanf(authsrv, "%d.%d.%d.%d", &a[0], &a[1], &a[2], &a[3]);
686 pos = (u8 *) &as->addr.u.v4;
687 *pos++ = a[0];
688 *pos++ = a[1];
689 *pos++ = a[2];
690 *pos++ = a[3];
691 }
692 #else /* CONFIG_NATIVE_WINDOWS or CONFIG_ANSI_C_EXTRA */
693 inet_aton(authsrv, &as->addr.u.v4);
694 #endif /* CONFIG_NATIVE_WINDOWS or CONFIG_ANSI_C_EXTRA */
695 as->addr.af = AF_INET;
696 as->port = port;
697 as->shared_secret = (u8 *) os_strdup(secret);
698 as->shared_secret_len = os_strlen(secret);
699 e->radius_conf->auth_server = as;
700 e->radius_conf->auth_servers = as;
701 e->radius_conf->msg_dumps = 1;
702
703 e->radius = radius_client_init(wpa_s, e->radius_conf);
704 assert(e->radius != NULL);
705
706 res = radius_client_register(e->radius, RADIUS_AUTH,
707 ieee802_1x_receive_auth, e);
708 assert(res == 0);
709 }
710
711
scard_test(void)712 static int scard_test(void)
713 {
714 struct scard_data *scard;
715 size_t len;
716 char imsi[20];
717 unsigned char _rand[16];
718 #ifdef PCSC_FUNCS
719 unsigned char sres[4];
720 unsigned char kc[8];
721 #endif /* PCSC_FUNCS */
722 #define num_triplets 5
723 unsigned char rand_[num_triplets][16];
724 unsigned char sres_[num_triplets][4];
725 unsigned char kc_[num_triplets][8];
726 int i, res;
727 size_t j;
728
729 #define AKA_RAND_LEN 16
730 #define AKA_AUTN_LEN 16
731 #define AKA_AUTS_LEN 14
732 #define RES_MAX_LEN 16
733 #define IK_LEN 16
734 #define CK_LEN 16
735 unsigned char aka_rand[AKA_RAND_LEN];
736 unsigned char aka_autn[AKA_AUTN_LEN];
737 unsigned char aka_auts[AKA_AUTS_LEN];
738 unsigned char aka_res[RES_MAX_LEN];
739 size_t aka_res_len;
740 unsigned char aka_ik[IK_LEN];
741 unsigned char aka_ck[CK_LEN];
742
743 scard = scard_init(SCARD_TRY_BOTH);
744 if (scard == NULL)
745 return -1;
746 if (scard_set_pin(scard, "1234")) {
747 wpa_printf(MSG_WARNING, "PIN validation failed");
748 scard_deinit(scard);
749 return -1;
750 }
751
752 len = sizeof(imsi);
753 if (scard_get_imsi(scard, imsi, &len))
754 goto failed;
755 wpa_hexdump_ascii(MSG_DEBUG, "SCARD: IMSI", (u8 *) imsi, len);
756 /* NOTE: Permanent Username: 1 | IMSI */
757
758 os_memset(_rand, 0, sizeof(_rand));
759 if (scard_gsm_auth(scard, _rand, sres, kc))
760 goto failed;
761
762 os_memset(_rand, 0xff, sizeof(_rand));
763 if (scard_gsm_auth(scard, _rand, sres, kc))
764 goto failed;
765
766 for (i = 0; i < num_triplets; i++) {
767 os_memset(rand_[i], i, sizeof(rand_[i]));
768 if (scard_gsm_auth(scard, rand_[i], sres_[i], kc_[i]))
769 goto failed;
770 }
771
772 for (i = 0; i < num_triplets; i++) {
773 printf("1");
774 for (j = 0; j < len; j++)
775 printf("%c", imsi[j]);
776 printf(",");
777 for (j = 0; j < 16; j++)
778 printf("%02X", rand_[i][j]);
779 printf(",");
780 for (j = 0; j < 4; j++)
781 printf("%02X", sres_[i][j]);
782 printf(",");
783 for (j = 0; j < 8; j++)
784 printf("%02X", kc_[i][j]);
785 printf("\n");
786 }
787
788 wpa_printf(MSG_DEBUG, "Trying to use UMTS authentication");
789
790 /* seq 39 (0x28) */
791 os_memset(aka_rand, 0xaa, 16);
792 os_memcpy(aka_autn, "\x86\x71\x31\xcb\xa2\xfc\x61\xdf"
793 "\xa3\xb3\x97\x9d\x07\x32\xa2\x12", 16);
794
795 res = scard_umts_auth(scard, aka_rand, aka_autn, aka_res, &aka_res_len,
796 aka_ik, aka_ck, aka_auts);
797 if (res == 0) {
798 wpa_printf(MSG_DEBUG, "UMTS auth completed successfully");
799 wpa_hexdump(MSG_DEBUG, "RES", aka_res, aka_res_len);
800 wpa_hexdump(MSG_DEBUG, "IK", aka_ik, IK_LEN);
801 wpa_hexdump(MSG_DEBUG, "CK", aka_ck, CK_LEN);
802 } else if (res == -2) {
803 wpa_printf(MSG_DEBUG, "UMTS auth resulted in synchronization "
804 "failure");
805 wpa_hexdump(MSG_DEBUG, "AUTS", aka_auts, AKA_AUTS_LEN);
806 } else {
807 wpa_printf(MSG_DEBUG, "UMTS auth failed");
808 }
809
810 failed:
811 scard_deinit(scard);
812
813 return 0;
814 #undef num_triplets
815 }
816
817
scard_get_triplets(int argc,char * argv[])818 static int scard_get_triplets(int argc, char *argv[])
819 {
820 struct scard_data *scard;
821 size_t len;
822 char imsi[20];
823 unsigned char _rand[16];
824 unsigned char sres[4];
825 unsigned char kc[8];
826 int num_triplets;
827 int i;
828 size_t j;
829
830 if (argc < 2 || ((num_triplets = atoi(argv[1])) <= 0)) {
831 printf("invalid parameters for sim command\n");
832 return -1;
833 }
834
835 if (argc <= 2 || os_strcmp(argv[2], "debug") != 0) {
836 /* disable debug output */
837 wpa_debug_level = 99;
838 }
839
840 scard = scard_init(SCARD_GSM_SIM_ONLY);
841 if (scard == NULL) {
842 printf("Failed to open smartcard connection\n");
843 return -1;
844 }
845 if (scard_set_pin(scard, argv[0])) {
846 wpa_printf(MSG_WARNING, "PIN validation failed");
847 scard_deinit(scard);
848 return -1;
849 }
850
851 len = sizeof(imsi);
852 if (scard_get_imsi(scard, imsi, &len)) {
853 scard_deinit(scard);
854 return -1;
855 }
856
857 for (i = 0; i < num_triplets; i++) {
858 os_memset(_rand, i, sizeof(_rand));
859 if (scard_gsm_auth(scard, _rand, sres, kc))
860 break;
861
862 /* IMSI:Kc:SRES:RAND */
863 for (j = 0; j < len; j++)
864 printf("%c", imsi[j]);
865 printf(":");
866 for (j = 0; j < 8; j++)
867 printf("%02X", kc[j]);
868 printf(":");
869 for (j = 0; j < 4; j++)
870 printf("%02X", sres[j]);
871 printf(":");
872 for (j = 0; j < 16; j++)
873 printf("%02X", _rand[j]);
874 printf("\n");
875 }
876
877 scard_deinit(scard);
878
879 return 0;
880 }
881
882
eapol_test_terminate(int sig,void * eloop_ctx,void * signal_ctx)883 static void eapol_test_terminate(int sig, void *eloop_ctx,
884 void *signal_ctx)
885 {
886 struct wpa_supplicant *wpa_s = eloop_ctx;
887 wpa_msg(wpa_s, MSG_INFO, "Signal %d received - terminating", sig);
888 eloop_terminate();
889 }
890
891
usage(void)892 static void usage(void)
893 {
894 printf("usage:\n"
895 "eapol_test [-nWS] -c<conf> [-a<AS IP>] [-p<AS port>] "
896 "[-s<AS secret>] \\\n"
897 " [-r<count>] [-t<timeout>] [-C<Connect-Info>] \\\n"
898 " [-M<client MAC address>]\n"
899 "eapol_test scard\n"
900 "eapol_test sim <PIN> <num triplets> [debug]\n"
901 "\n");
902 printf("options:\n"
903 " -c<conf> = configuration file\n"
904 " -a<AS IP> = IP address of the authentication server, "
905 "default 127.0.0.1\n"
906 " -p<AS port> = UDP port of the authentication server, "
907 "default 1812\n"
908 " -s<AS secret> = shared secret with the authentication "
909 "server, default 'radius'\n"
910 " -r<count> = number of re-authentications\n"
911 " -W = wait for a control interface monitor before starting\n"
912 " -S = save configuration after authentiation\n"
913 " -n = no MPPE keys expected\n"
914 " -t<timeout> = sets timeout in seconds (default: 30 s)\n"
915 " -C<Connect-Info> = RADIUS Connect-Info (default: "
916 "CONNECT 11Mbps 802.11b)\n"
917 " -M<client MAC address> = Set own MAC address "
918 "(Calling-Station-Id,\n"
919 " default: 02:00:00:00:00:01)\n");
920 }
921
922
main(int argc,char * argv[])923 int main(int argc, char *argv[])
924 {
925 struct wpa_supplicant wpa_s;
926 int c, ret = 1, wait_for_monitor = 0, save_config = 0;
927 char *as_addr = "127.0.0.1";
928 int as_port = 1812;
929 char *as_secret = "radius";
930 char *conf = NULL;
931 int timeout = 30;
932
933 if (os_program_init())
934 return -1;
935
936 os_memset(&eapol_test, 0, sizeof(eapol_test));
937 eapol_test.connect_info = "CONNECT 11Mbps 802.11b";
938 os_memcpy(eapol_test.own_addr, "\x02\x00\x00\x00\x00\x01", ETH_ALEN);
939
940 wpa_debug_level = 0;
941 wpa_debug_show_keys = 1;
942
943 for (;;) {
944 c = getopt(argc, argv, "a:c:C:M:np:r:s:St:W");
945 if (c < 0)
946 break;
947 switch (c) {
948 case 'a':
949 as_addr = optarg;
950 break;
951 case 'c':
952 conf = optarg;
953 break;
954 case 'C':
955 eapol_test.connect_info = optarg;
956 break;
957 case 'M':
958 if (hwaddr_aton(optarg, eapol_test.own_addr)) {
959 usage();
960 return -1;
961 }
962 break;
963 case 'n':
964 eapol_test.no_mppe_keys++;
965 break;
966 case 'p':
967 as_port = atoi(optarg);
968 break;
969 case 'r':
970 eapol_test.eapol_test_num_reauths = atoi(optarg);
971 break;
972 case 's':
973 as_secret = optarg;
974 break;
975 case 'S':
976 save_config++;
977 break;
978 case 't':
979 timeout = atoi(optarg);
980 break;
981 case 'W':
982 wait_for_monitor++;
983 break;
984 default:
985 usage();
986 return -1;
987 }
988 }
989
990 if (argc > optind && os_strcmp(argv[optind], "scard") == 0) {
991 return scard_test();
992 }
993
994 if (argc > optind && os_strcmp(argv[optind], "sim") == 0) {
995 return scard_get_triplets(argc - optind - 1,
996 &argv[optind + 1]);
997 }
998
999 if (conf == NULL) {
1000 usage();
1001 printf("Configuration file is required.\n");
1002 return -1;
1003 }
1004
1005 if (eap_peer_register_methods()) {
1006 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
1007 return -1;
1008 }
1009
1010 if (eloop_init(&wpa_s)) {
1011 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
1012 return -1;
1013 }
1014
1015 os_memset(&wpa_s, 0, sizeof(wpa_s));
1016 eapol_test.wpa_s = &wpa_s;
1017 wpa_s.conf = wpa_config_read(conf);
1018 if (wpa_s.conf == NULL) {
1019 printf("Failed to parse configuration file '%s'.\n", conf);
1020 return -1;
1021 }
1022 if (wpa_s.conf->ssid == NULL) {
1023 printf("No networks defined.\n");
1024 return -1;
1025 }
1026
1027 wpa_init_conf(&eapol_test, &wpa_s, as_addr, as_port, as_secret);
1028 wpa_s.ctrl_iface = wpa_supplicant_ctrl_iface_init(&wpa_s);
1029 if (wpa_s.ctrl_iface == NULL) {
1030 printf("Failed to initialize control interface '%s'.\n"
1031 "You may have another eapol_test process already "
1032 "running or the file was\n"
1033 "left by an unclean termination of eapol_test in "
1034 "which case you will need\n"
1035 "to manually remove this file before starting "
1036 "eapol_test again.\n",
1037 wpa_s.conf->ctrl_interface);
1038 return -1;
1039 }
1040 if (wpa_supplicant_scard_init(&wpa_s, wpa_s.conf->ssid))
1041 return -1;
1042
1043 if (test_eapol(&eapol_test, &wpa_s, wpa_s.conf->ssid))
1044 return -1;
1045
1046 if (wait_for_monitor)
1047 wpa_supplicant_ctrl_iface_wait(wpa_s.ctrl_iface);
1048
1049 eloop_register_timeout(timeout, 0, eapol_test_timeout, &eapol_test,
1050 NULL);
1051 eloop_register_timeout(0, 0, send_eap_request_identity, &wpa_s, NULL);
1052 eloop_register_signal_terminate(eapol_test_terminate, NULL);
1053 eloop_register_signal_reconfig(eapol_test_terminate, NULL);
1054 eloop_run();
1055
1056 eloop_cancel_timeout(eapol_test_timeout, &eapol_test, NULL);
1057 eloop_cancel_timeout(eapol_sm_reauth, &eapol_test, NULL);
1058
1059 if (eapol_test_compare_pmk(&eapol_test) == 0 ||
1060 eapol_test.no_mppe_keys)
1061 ret = 0;
1062 if (eapol_test.auth_timed_out)
1063 ret = -2;
1064 if (eapol_test.radius_access_reject_received)
1065 ret = -3;
1066
1067 if (save_config)
1068 wpa_config_write(conf, wpa_s.conf);
1069
1070 test_eapol_clean(&eapol_test, &wpa_s);
1071
1072 eap_peer_unregister_methods();
1073
1074 eloop_destroy();
1075
1076 printf("MPPE keys OK: %d mismatch: %d\n",
1077 eapol_test.num_mppe_ok, eapol_test.num_mppe_mismatch);
1078 if (eapol_test.num_mppe_mismatch)
1079 ret = -4;
1080 if (ret)
1081 printf("FAILURE\n");
1082 else
1083 printf("SUCCESS\n");
1084
1085 os_program_deinit();
1086
1087 return ret;
1088 }
1089