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[thirdparty/hostap.git] / wpa_supplicant / eapol_test.c
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
32 extern int wpa_debug_level;
33 extern int wpa_debug_show_keys;
34
35 struct wpa_driver_ops *wpa_drivers[] = { NULL };
36
37
38 struct extra_radius_attr {
39 u8 type;
40 char syntax;
41 char *data;
42 struct extra_radius_attr *next;
43 };
44
45 struct 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
78 static struct eapol_test_data eapol_test;
79
80
81 static void send_eap_request_identity(void *eloop_ctx, void *timeout_ctx);
82
83
84 static 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
95 static 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
146 static 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
158 static struct extra_radius_attr *
159 find_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
170 static 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
289 static 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
302 static 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
310 static const struct wpa_config_blob *
311 eapol_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
318 static void eapol_test_eapol_done_cb(void *ctx)
319 {
320 printf("WPA: EAPOL processing complete\n");
321 }
322
323
324 static 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
333 static 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
369 static 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
383 static 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
397 static 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
430 static 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
483 static 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
518 static 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
543 static 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
552 static 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
573 static 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
661 static 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 */
709 static RadiusRxResult
710 ieee802_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
769 static 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
828 static 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
929 failed:
930 scard_deinit(scard);
931
932 return 0;
933 #undef num_triplets
934 }
935
936
937 static 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
1002 static 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
1010 static 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
1059 int 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 }
Unnamed repository; edit this file 'description' to name the repository.