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eapol_test: Allow full RADIUS attribute length to be used
[thirdparty/hostap.git] / wpa_supplicant / eapol_test.c
1 /*
2 * WPA Supplicant - test code
3 * Copyright (c) 2003-2012, 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 "utils/ext_password.h"
17 #include "config.h"
18 #include "eapol_supp/eapol_supp_sm.h"
19 #include "eap_peer/eap.h"
20 #include "eap_server/eap_methods.h"
21 #include "eloop.h"
22 #include "utils/base64.h"
23 #include "rsn_supp/wpa.h"
24 #include "eap_peer/eap_i.h"
25 #include "wpa_supplicant_i.h"
26 #include "radius/radius.h"
27 #include "radius/radius_client.h"
28 #include "common/wpa_ctrl.h"
29 #include "ctrl_iface.h"
30 #include "pcsc_funcs.h"
31
32
33 extern int wpa_debug_level;
34 extern int wpa_debug_show_keys;
35
36 struct wpa_driver_ops *wpa_drivers[] = { NULL };
37
38
39 struct extra_radius_attr {
40 u8 type;
41 char syntax;
42 char *data;
43 struct extra_radius_attr *next;
44 };
45
46 struct eapol_test_data {
47 struct wpa_supplicant *wpa_s;
48
49 int eapol_test_num_reauths;
50 int no_mppe_keys;
51 int num_mppe_ok, num_mppe_mismatch;
52
53 u8 radius_identifier;
54 struct radius_msg *last_recv_radius;
55 struct in_addr own_ip_addr;
56 struct radius_client_data *radius;
57 struct hostapd_radius_servers *radius_conf;
58
59 /* last received EAP Response from Authentication Server */
60 struct wpabuf *last_eap_radius;
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[RADIUS_MAX_ATTR_LEN + 1];
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) > RADIUS_MAX_ATTR_LEN) {
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[RADIUS_MAX_ATTR_LEN + 1];
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 if (radius_client_send(e->radius, msg, RADIUS_AUTH, e->wpa_s->own_addr)
282 < 0)
283 goto fail;
284 return;
285
286 fail:
287 radius_msg_free(msg);
288 }
289
290
291 static int eapol_test_eapol_send(void *ctx, int type, const u8 *buf,
292 size_t len)
293 {
294 printf("WPA: eapol_test_eapol_send(type=%d len=%lu)\n",
295 type, (unsigned long) len);
296 if (type == IEEE802_1X_TYPE_EAP_PACKET) {
297 wpa_hexdump(MSG_DEBUG, "TX EAP -> RADIUS", buf, len);
298 ieee802_1x_encapsulate_radius(&eapol_test, buf, len);
299 }
300 return 0;
301 }
302
303
304 static void eapol_test_set_config_blob(void *ctx,
305 struct wpa_config_blob *blob)
306 {
307 struct eapol_test_data *e = ctx;
308 wpa_config_set_blob(e->wpa_s->conf, blob);
309 }
310
311
312 static const struct wpa_config_blob *
313 eapol_test_get_config_blob(void *ctx, const char *name)
314 {
315 struct eapol_test_data *e = ctx;
316 return wpa_config_get_blob(e->wpa_s->conf, name);
317 }
318
319
320 static void eapol_test_eapol_done_cb(void *ctx)
321 {
322 printf("WPA: EAPOL processing complete\n");
323 }
324
325
326 static void eapol_sm_reauth(void *eloop_ctx, void *timeout_ctx)
327 {
328 struct eapol_test_data *e = eloop_ctx;
329 printf("\n\n\n\n\neapol_test: Triggering EAP reauthentication\n\n");
330 e->radius_access_accept_received = 0;
331 send_eap_request_identity(e->wpa_s, NULL);
332 }
333
334
335 static int eapol_test_compare_pmk(struct eapol_test_data *e)
336 {
337 u8 pmk[PMK_LEN];
338 int ret = 1;
339
340 if (eapol_sm_get_key(e->wpa_s->eapol, pmk, PMK_LEN) == 0) {
341 wpa_hexdump(MSG_DEBUG, "PMK from EAPOL", pmk, PMK_LEN);
342 if (os_memcmp(pmk, e->authenticator_pmk, PMK_LEN) != 0) {
343 printf("WARNING: PMK mismatch\n");
344 wpa_hexdump(MSG_DEBUG, "PMK from AS",
345 e->authenticator_pmk, PMK_LEN);
346 } else if (e->radius_access_accept_received)
347 ret = 0;
348 } else if (e->authenticator_pmk_len == 16 &&
349 eapol_sm_get_key(e->wpa_s->eapol, pmk, 16) == 0) {
350 wpa_hexdump(MSG_DEBUG, "LEAP PMK from EAPOL", pmk, 16);
351 if (os_memcmp(pmk, e->authenticator_pmk, 16) != 0) {
352 printf("WARNING: PMK mismatch\n");
353 wpa_hexdump(MSG_DEBUG, "PMK from AS",
354 e->authenticator_pmk, 16);
355 } else if (e->radius_access_accept_received)
356 ret = 0;
357 } else if (e->radius_access_accept_received && e->no_mppe_keys) {
358 /* No keying material expected */
359 ret = 0;
360 }
361
362 if (ret && !e->no_mppe_keys)
363 e->num_mppe_mismatch++;
364 else if (!e->no_mppe_keys)
365 e->num_mppe_ok++;
366
367 return ret;
368 }
369
370
371 static void eapol_sm_cb(struct eapol_sm *eapol, int success, void *ctx)
372 {
373 struct eapol_test_data *e = ctx;
374 printf("eapol_sm_cb: success=%d\n", success);
375 e->eapol_test_num_reauths--;
376 if (e->eapol_test_num_reauths < 0)
377 eloop_terminate();
378 else {
379 eapol_test_compare_pmk(e);
380 eloop_register_timeout(0, 100000, eapol_sm_reauth, e, NULL);
381 }
382 }
383
384
385 static void eapol_test_write_cert(FILE *f, const char *subject,
386 const struct wpabuf *cert)
387 {
388 unsigned char *encoded;
389
390 encoded = base64_encode(wpabuf_head(cert), wpabuf_len(cert), NULL);
391 if (encoded == NULL)
392 return;
393 fprintf(f, "%s\n-----BEGIN CERTIFICATE-----\n%s"
394 "-----END CERTIFICATE-----\n\n", subject, encoded);
395 os_free(encoded);
396 }
397
398
399 static void eapol_test_cert_cb(void *ctx, int depth, const char *subject,
400 const char *cert_hash,
401 const struct wpabuf *cert)
402 {
403 struct eapol_test_data *e = ctx;
404
405 wpa_msg(e->wpa_s, MSG_INFO, WPA_EVENT_EAP_PEER_CERT
406 "depth=%d subject='%s'%s%s",
407 depth, subject,
408 cert_hash ? " hash=" : "",
409 cert_hash ? cert_hash : "");
410
411 if (cert) {
412 char *cert_hex;
413 size_t len = wpabuf_len(cert) * 2 + 1;
414 cert_hex = os_malloc(len);
415 if (cert_hex) {
416 wpa_snprintf_hex(cert_hex, len, wpabuf_head(cert),
417 wpabuf_len(cert));
418 wpa_msg_ctrl(e->wpa_s, MSG_INFO,
419 WPA_EVENT_EAP_PEER_CERT
420 "depth=%d subject='%s' cert=%s",
421 depth, subject, cert_hex);
422 os_free(cert_hex);
423 }
424
425 if (e->server_cert_file)
426 eapol_test_write_cert(e->server_cert_file,
427 subject, cert);
428 }
429 }
430
431
432 static void eapol_test_set_anon_id(void *ctx, const u8 *id, size_t len)
433 {
434 struct eapol_test_data *e = ctx;
435 struct wpa_supplicant *wpa_s = e->wpa_s;
436 char *str;
437 int res;
438
439 wpa_hexdump_ascii(MSG_DEBUG, "EAP method updated anonymous_identity",
440 id, len);
441
442 if (wpa_s->current_ssid == NULL)
443 return;
444
445 if (id == NULL) {
446 if (wpa_config_set(wpa_s->current_ssid, "anonymous_identity",
447 "NULL", 0) < 0)
448 return;
449 } else {
450 str = os_malloc(len * 2 + 1);
451 if (str == NULL)
452 return;
453 wpa_snprintf_hex(str, len * 2 + 1, id, len);
454 res = wpa_config_set(wpa_s->current_ssid, "anonymous_identity",
455 str, 0);
456 os_free(str);
457 if (res < 0)
458 return;
459 }
460 }
461
462
463 static int test_eapol(struct eapol_test_data *e, struct wpa_supplicant *wpa_s,
464 struct wpa_ssid *ssid)
465 {
466 struct eapol_config eapol_conf;
467 struct eapol_ctx *ctx;
468
469 ctx = os_zalloc(sizeof(*ctx));
470 if (ctx == NULL) {
471 printf("Failed to allocate EAPOL context.\n");
472 return -1;
473 }
474 ctx->ctx = e;
475 ctx->msg_ctx = wpa_s;
476 ctx->scard_ctx = wpa_s->scard;
477 ctx->cb = eapol_sm_cb;
478 ctx->cb_ctx = e;
479 ctx->eapol_send_ctx = wpa_s;
480 ctx->preauth = 0;
481 ctx->eapol_done_cb = eapol_test_eapol_done_cb;
482 ctx->eapol_send = eapol_test_eapol_send;
483 ctx->set_config_blob = eapol_test_set_config_blob;
484 ctx->get_config_blob = eapol_test_get_config_blob;
485 ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path;
486 ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path;
487 ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path;
488 ctx->cert_cb = eapol_test_cert_cb;
489 ctx->cert_in_cb = 1;
490 ctx->set_anon_id = eapol_test_set_anon_id;
491
492 wpa_s->eapol = eapol_sm_init(ctx);
493 if (wpa_s->eapol == NULL) {
494 os_free(ctx);
495 printf("Failed to initialize EAPOL state machines.\n");
496 return -1;
497 }
498
499 wpa_s->current_ssid = ssid;
500 os_memset(&eapol_conf, 0, sizeof(eapol_conf));
501 eapol_conf.accept_802_1x_keys = 1;
502 eapol_conf.required_keys = 0;
503 eapol_conf.fast_reauth = wpa_s->conf->fast_reauth;
504 eapol_conf.workaround = ssid->eap_workaround;
505 eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf);
506 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
507
508
509 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
510 /* 802.1X::portControl = Auto */
511 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
512
513 return 0;
514 }
515
516
517 static void test_eapol_clean(struct eapol_test_data *e,
518 struct wpa_supplicant *wpa_s)
519 {
520 struct extra_radius_attr *p, *prev;
521
522 radius_client_deinit(e->radius);
523 wpabuf_free(e->last_eap_radius);
524 radius_msg_free(e->last_recv_radius);
525 e->last_recv_radius = NULL;
526 os_free(e->eap_identity);
527 e->eap_identity = NULL;
528 eapol_sm_deinit(wpa_s->eapol);
529 wpa_s->eapol = NULL;
530 if (e->radius_conf && e->radius_conf->auth_server) {
531 os_free(e->radius_conf->auth_server->shared_secret);
532 os_free(e->radius_conf->auth_server);
533 }
534 os_free(e->radius_conf);
535 e->radius_conf = NULL;
536 scard_deinit(wpa_s->scard);
537 if (wpa_s->ctrl_iface) {
538 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
539 wpa_s->ctrl_iface = NULL;
540 }
541
542 ext_password_deinit(wpa_s->ext_pw);
543 wpa_s->ext_pw = NULL;
544
545 wpa_config_free(wpa_s->conf);
546
547 p = e->extra_attrs;
548 while (p) {
549 prev = p;
550 p = p->next;
551 os_free(prev);
552 }
553 }
554
555
556 static void send_eap_request_identity(void *eloop_ctx, void *timeout_ctx)
557 {
558 struct wpa_supplicant *wpa_s = eloop_ctx;
559 u8 buf[100], *pos;
560 struct ieee802_1x_hdr *hdr;
561 struct eap_hdr *eap;
562
563 hdr = (struct ieee802_1x_hdr *) buf;
564 hdr->version = EAPOL_VERSION;
565 hdr->type = IEEE802_1X_TYPE_EAP_PACKET;
566 hdr->length = htons(5);
567
568 eap = (struct eap_hdr *) (hdr + 1);
569 eap->code = EAP_CODE_REQUEST;
570 eap->identifier = 0;
571 eap->length = htons(5);
572 pos = (u8 *) (eap + 1);
573 *pos = EAP_TYPE_IDENTITY;
574
575 printf("Sending fake EAP-Request-Identity\n");
576 eapol_sm_rx_eapol(wpa_s->eapol, wpa_s->bssid, buf,
577 sizeof(*hdr) + 5);
578 }
579
580
581 static void eapol_test_timeout(void *eloop_ctx, void *timeout_ctx)
582 {
583 struct eapol_test_data *e = eloop_ctx;
584 printf("EAPOL test timed out\n");
585 e->auth_timed_out = 1;
586 eloop_terminate();
587 }
588
589
590 static char *eap_type_text(u8 type)
591 {
592 switch (type) {
593 case EAP_TYPE_IDENTITY: return "Identity";
594 case EAP_TYPE_NOTIFICATION: return "Notification";
595 case EAP_TYPE_NAK: return "Nak";
596 case EAP_TYPE_TLS: return "TLS";
597 case EAP_TYPE_TTLS: return "TTLS";
598 case EAP_TYPE_PEAP: return "PEAP";
599 case EAP_TYPE_SIM: return "SIM";
600 case EAP_TYPE_GTC: return "GTC";
601 case EAP_TYPE_MD5: return "MD5";
602 case EAP_TYPE_OTP: return "OTP";
603 case EAP_TYPE_FAST: return "FAST";
604 case EAP_TYPE_SAKE: return "SAKE";
605 case EAP_TYPE_PSK: return "PSK";
606 default: return "Unknown";
607 }
608 }
609
610
611 static void ieee802_1x_decapsulate_radius(struct eapol_test_data *e)
612 {
613 struct wpabuf *eap;
614 const struct eap_hdr *hdr;
615 int eap_type = -1;
616 char buf[64];
617 struct radius_msg *msg;
618
619 if (e->last_recv_radius == NULL)
620 return;
621
622 msg = e->last_recv_radius;
623
624 eap = radius_msg_get_eap(msg);
625 if (eap == NULL) {
626 /* draft-aboba-radius-rfc2869bis-20.txt, Chap. 2.6.3:
627 * RADIUS server SHOULD NOT send Access-Reject/no EAP-Message
628 * attribute */
629 wpa_printf(MSG_DEBUG, "could not extract "
630 "EAP-Message from RADIUS message");
631 wpabuf_free(e->last_eap_radius);
632 e->last_eap_radius = NULL;
633 return;
634 }
635
636 if (wpabuf_len(eap) < sizeof(*hdr)) {
637 wpa_printf(MSG_DEBUG, "too short EAP packet "
638 "received from authentication server");
639 wpabuf_free(eap);
640 return;
641 }
642
643 if (wpabuf_len(eap) > sizeof(*hdr))
644 eap_type = (wpabuf_head_u8(eap))[sizeof(*hdr)];
645
646 hdr = wpabuf_head(eap);
647 switch (hdr->code) {
648 case EAP_CODE_REQUEST:
649 os_snprintf(buf, sizeof(buf), "EAP-Request-%s (%d)",
650 eap_type >= 0 ? eap_type_text(eap_type) : "??",
651 eap_type);
652 break;
653 case EAP_CODE_RESPONSE:
654 os_snprintf(buf, sizeof(buf), "EAP Response-%s (%d)",
655 eap_type >= 0 ? eap_type_text(eap_type) : "??",
656 eap_type);
657 break;
658 case EAP_CODE_SUCCESS:
659 os_strlcpy(buf, "EAP Success", sizeof(buf));
660 /* LEAP uses EAP Success within an authentication, so must not
661 * stop here with eloop_terminate(); */
662 break;
663 case EAP_CODE_FAILURE:
664 os_strlcpy(buf, "EAP Failure", sizeof(buf));
665 eloop_terminate();
666 break;
667 default:
668 os_strlcpy(buf, "unknown EAP code", sizeof(buf));
669 wpa_hexdump_buf(MSG_DEBUG, "Decapsulated EAP packet", eap);
670 break;
671 }
672 wpa_printf(MSG_DEBUG, "decapsulated EAP packet (code=%d "
673 "id=%d len=%d) from RADIUS server: %s",
674 hdr->code, hdr->identifier, ntohs(hdr->length), buf);
675
676 /* sta->eapol_sm->be_auth.idFromServer = hdr->identifier; */
677
678 wpabuf_free(e->last_eap_radius);
679 e->last_eap_radius = eap;
680
681 {
682 struct ieee802_1x_hdr *dot1x;
683 dot1x = os_malloc(sizeof(*dot1x) + wpabuf_len(eap));
684 assert(dot1x != NULL);
685 dot1x->version = EAPOL_VERSION;
686 dot1x->type = IEEE802_1X_TYPE_EAP_PACKET;
687 dot1x->length = htons(wpabuf_len(eap));
688 os_memcpy((u8 *) (dot1x + 1), wpabuf_head(eap),
689 wpabuf_len(eap));
690 eapol_sm_rx_eapol(e->wpa_s->eapol, e->wpa_s->bssid,
691 (u8 *) dot1x,
692 sizeof(*dot1x) + wpabuf_len(eap));
693 os_free(dot1x);
694 }
695 }
696
697
698 static void ieee802_1x_get_keys(struct eapol_test_data *e,
699 struct radius_msg *msg, struct radius_msg *req,
700 const u8 *shared_secret,
701 size_t shared_secret_len)
702 {
703 struct radius_ms_mppe_keys *keys;
704
705 keys = radius_msg_get_ms_keys(msg, req, shared_secret,
706 shared_secret_len);
707 if (keys && keys->send == NULL && keys->recv == NULL) {
708 os_free(keys);
709 keys = radius_msg_get_cisco_keys(msg, req, shared_secret,
710 shared_secret_len);
711 }
712
713 if (keys) {
714 if (keys->send) {
715 wpa_hexdump(MSG_DEBUG, "MS-MPPE-Send-Key (sign)",
716 keys->send, keys->send_len);
717 }
718 if (keys->recv) {
719 wpa_hexdump(MSG_DEBUG, "MS-MPPE-Recv-Key (crypt)",
720 keys->recv, keys->recv_len);
721 e->authenticator_pmk_len =
722 keys->recv_len > PMK_LEN ? PMK_LEN :
723 keys->recv_len;
724 os_memcpy(e->authenticator_pmk, keys->recv,
725 e->authenticator_pmk_len);
726 if (e->authenticator_pmk_len == 16 && keys->send &&
727 keys->send_len == 16) {
728 /* MS-CHAP-v2 derives 16 octet keys */
729 wpa_printf(MSG_DEBUG, "Use MS-MPPE-Send-Key "
730 "to extend PMK to 32 octets");
731 os_memcpy(e->authenticator_pmk +
732 e->authenticator_pmk_len,
733 keys->send, keys->send_len);
734 e->authenticator_pmk_len += keys->send_len;
735 }
736 }
737
738 os_free(keys->send);
739 os_free(keys->recv);
740 os_free(keys);
741 }
742 }
743
744
745 /* Process the RADIUS frames from Authentication Server */
746 static RadiusRxResult
747 ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req,
748 const u8 *shared_secret, size_t shared_secret_len,
749 void *data)
750 {
751 struct eapol_test_data *e = data;
752 struct radius_hdr *hdr = radius_msg_get_hdr(msg);
753
754 /* RFC 2869, Ch. 5.13: valid Message-Authenticator attribute MUST be
755 * present when packet contains an EAP-Message attribute */
756 if (hdr->code == RADIUS_CODE_ACCESS_REJECT &&
757 radius_msg_get_attr(msg, RADIUS_ATTR_MESSAGE_AUTHENTICATOR, NULL,
758 0) < 0 &&
759 radius_msg_get_attr(msg, RADIUS_ATTR_EAP_MESSAGE, NULL, 0) < 0) {
760 wpa_printf(MSG_DEBUG, "Allowing RADIUS "
761 "Access-Reject without Message-Authenticator "
762 "since it does not include EAP-Message\n");
763 } else if (radius_msg_verify(msg, shared_secret, shared_secret_len,
764 req, 1)) {
765 printf("Incoming RADIUS packet did not have correct "
766 "Message-Authenticator - dropped\n");
767 return RADIUS_RX_UNKNOWN;
768 }
769
770 if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
771 hdr->code != RADIUS_CODE_ACCESS_REJECT &&
772 hdr->code != RADIUS_CODE_ACCESS_CHALLENGE) {
773 printf("Unknown RADIUS message code\n");
774 return RADIUS_RX_UNKNOWN;
775 }
776
777 e->radius_identifier = -1;
778 wpa_printf(MSG_DEBUG, "RADIUS packet matching with station");
779
780 radius_msg_free(e->last_recv_radius);
781 e->last_recv_radius = msg;
782
783 switch (hdr->code) {
784 case RADIUS_CODE_ACCESS_ACCEPT:
785 e->radius_access_accept_received = 1;
786 ieee802_1x_get_keys(e, msg, req, shared_secret,
787 shared_secret_len);
788 break;
789 case RADIUS_CODE_ACCESS_REJECT:
790 e->radius_access_reject_received = 1;
791 break;
792 }
793
794 ieee802_1x_decapsulate_radius(e);
795
796 if ((hdr->code == RADIUS_CODE_ACCESS_ACCEPT &&
797 e->eapol_test_num_reauths < 0) ||
798 hdr->code == RADIUS_CODE_ACCESS_REJECT) {
799 eloop_terminate();
800 }
801
802 return RADIUS_RX_QUEUED;
803 }
804
805
806 static void wpa_init_conf(struct eapol_test_data *e,
807 struct wpa_supplicant *wpa_s, const char *authsrv,
808 int port, const char *secret,
809 const char *cli_addr)
810 {
811 struct hostapd_radius_server *as;
812 int res;
813
814 wpa_s->bssid[5] = 1;
815 os_memcpy(wpa_s->own_addr, e->own_addr, ETH_ALEN);
816 e->own_ip_addr.s_addr = htonl((127 << 24) | 1);
817 os_strlcpy(wpa_s->ifname, "test", sizeof(wpa_s->ifname));
818
819 e->radius_conf = os_zalloc(sizeof(struct hostapd_radius_servers));
820 assert(e->radius_conf != NULL);
821 e->radius_conf->num_auth_servers = 1;
822 as = os_zalloc(sizeof(struct hostapd_radius_server));
823 assert(as != NULL);
824 #if defined(CONFIG_NATIVE_WINDOWS) || defined(CONFIG_ANSI_C_EXTRA)
825 {
826 int a[4];
827 u8 *pos;
828 sscanf(authsrv, "%d.%d.%d.%d", &a[0], &a[1], &a[2], &a[3]);
829 pos = (u8 *) &as->addr.u.v4;
830 *pos++ = a[0];
831 *pos++ = a[1];
832 *pos++ = a[2];
833 *pos++ = a[3];
834 }
835 #else /* CONFIG_NATIVE_WINDOWS or CONFIG_ANSI_C_EXTRA */
836 inet_aton(authsrv, &as->addr.u.v4);
837 #endif /* CONFIG_NATIVE_WINDOWS or CONFIG_ANSI_C_EXTRA */
838 as->addr.af = AF_INET;
839 as->port = port;
840 as->shared_secret = (u8 *) os_strdup(secret);
841 as->shared_secret_len = os_strlen(secret);
842 e->radius_conf->auth_server = as;
843 e->radius_conf->auth_servers = as;
844 e->radius_conf->msg_dumps = 1;
845 if (cli_addr) {
846 if (hostapd_parse_ip_addr(cli_addr,
847 &e->radius_conf->client_addr) == 0)
848 e->radius_conf->force_client_addr = 1;
849 else {
850 wpa_printf(MSG_ERROR, "Invalid IP address '%s'",
851 cli_addr);
852 assert(0);
853 }
854 }
855
856 e->radius = radius_client_init(wpa_s, e->radius_conf);
857 assert(e->radius != NULL);
858
859 res = radius_client_register(e->radius, RADIUS_AUTH,
860 ieee802_1x_receive_auth, e);
861 assert(res == 0);
862 }
863
864
865 static int scard_test(void)
866 {
867 struct scard_data *scard;
868 size_t len;
869 char imsi[20];
870 unsigned char _rand[16];
871 #ifdef PCSC_FUNCS
872 unsigned char sres[4];
873 unsigned char kc[8];
874 #endif /* PCSC_FUNCS */
875 #define num_triplets 5
876 unsigned char rand_[num_triplets][16];
877 unsigned char sres_[num_triplets][4];
878 unsigned char kc_[num_triplets][8];
879 int i, res;
880 size_t j;
881
882 #define AKA_RAND_LEN 16
883 #define AKA_AUTN_LEN 16
884 #define AKA_AUTS_LEN 14
885 #define RES_MAX_LEN 16
886 #define IK_LEN 16
887 #define CK_LEN 16
888 unsigned char aka_rand[AKA_RAND_LEN];
889 unsigned char aka_autn[AKA_AUTN_LEN];
890 unsigned char aka_auts[AKA_AUTS_LEN];
891 unsigned char aka_res[RES_MAX_LEN];
892 size_t aka_res_len;
893 unsigned char aka_ik[IK_LEN];
894 unsigned char aka_ck[CK_LEN];
895
896 scard = scard_init(SCARD_TRY_BOTH, NULL);
897 if (scard == NULL)
898 return -1;
899 if (scard_set_pin(scard, "1234")) {
900 wpa_printf(MSG_WARNING, "PIN validation failed");
901 scard_deinit(scard);
902 return -1;
903 }
904
905 len = sizeof(imsi);
906 if (scard_get_imsi(scard, imsi, &len))
907 goto failed;
908 wpa_hexdump_ascii(MSG_DEBUG, "SCARD: IMSI", (u8 *) imsi, len);
909 /* NOTE: Permanent Username: 1 | IMSI */
910
911 wpa_printf(MSG_DEBUG, "SCARD: MNC length %d",
912 scard_get_mnc_len(scard));
913
914 os_memset(_rand, 0, sizeof(_rand));
915 if (scard_gsm_auth(scard, _rand, sres, kc))
916 goto failed;
917
918 os_memset(_rand, 0xff, sizeof(_rand));
919 if (scard_gsm_auth(scard, _rand, sres, kc))
920 goto failed;
921
922 for (i = 0; i < num_triplets; i++) {
923 os_memset(rand_[i], i, sizeof(rand_[i]));
924 if (scard_gsm_auth(scard, rand_[i], sres_[i], kc_[i]))
925 goto failed;
926 }
927
928 for (i = 0; i < num_triplets; i++) {
929 printf("1");
930 for (j = 0; j < len; j++)
931 printf("%c", imsi[j]);
932 printf(",");
933 for (j = 0; j < 16; j++)
934 printf("%02X", rand_[i][j]);
935 printf(",");
936 for (j = 0; j < 4; j++)
937 printf("%02X", sres_[i][j]);
938 printf(",");
939 for (j = 0; j < 8; j++)
940 printf("%02X", kc_[i][j]);
941 printf("\n");
942 }
943
944 wpa_printf(MSG_DEBUG, "Trying to use UMTS authentication");
945
946 /* seq 39 (0x28) */
947 os_memset(aka_rand, 0xaa, 16);
948 os_memcpy(aka_autn, "\x86\x71\x31\xcb\xa2\xfc\x61\xdf"
949 "\xa3\xb3\x97\x9d\x07\x32\xa2\x12", 16);
950
951 res = scard_umts_auth(scard, aka_rand, aka_autn, aka_res, &aka_res_len,
952 aka_ik, aka_ck, aka_auts);
953 if (res == 0) {
954 wpa_printf(MSG_DEBUG, "UMTS auth completed successfully");
955 wpa_hexdump(MSG_DEBUG, "RES", aka_res, aka_res_len);
956 wpa_hexdump(MSG_DEBUG, "IK", aka_ik, IK_LEN);
957 wpa_hexdump(MSG_DEBUG, "CK", aka_ck, CK_LEN);
958 } else if (res == -2) {
959 wpa_printf(MSG_DEBUG, "UMTS auth resulted in synchronization "
960 "failure");
961 wpa_hexdump(MSG_DEBUG, "AUTS", aka_auts, AKA_AUTS_LEN);
962 } else {
963 wpa_printf(MSG_DEBUG, "UMTS auth failed");
964 }
965
966 failed:
967 scard_deinit(scard);
968
969 return 0;
970 #undef num_triplets
971 }
972
973
974 static int scard_get_triplets(int argc, char *argv[])
975 {
976 struct scard_data *scard;
977 size_t len;
978 char imsi[20];
979 unsigned char _rand[16];
980 unsigned char sres[4];
981 unsigned char kc[8];
982 int num_triplets;
983 int i;
984 size_t j;
985
986 if (argc < 2 || ((num_triplets = atoi(argv[1])) <= 0)) {
987 printf("invalid parameters for sim command\n");
988 return -1;
989 }
990
991 if (argc <= 2 || os_strcmp(argv[2], "debug") != 0) {
992 /* disable debug output */
993 wpa_debug_level = 99;
994 }
995
996 scard = scard_init(SCARD_GSM_SIM_ONLY, NULL);
997 if (scard == NULL) {
998 printf("Failed to open smartcard connection\n");
999 return -1;
1000 }
1001 if (scard_set_pin(scard, argv[0])) {
1002 wpa_printf(MSG_WARNING, "PIN validation failed");
1003 scard_deinit(scard);
1004 return -1;
1005 }
1006
1007 len = sizeof(imsi);
1008 if (scard_get_imsi(scard, imsi, &len)) {
1009 scard_deinit(scard);
1010 return -1;
1011 }
1012
1013 for (i = 0; i < num_triplets; i++) {
1014 os_memset(_rand, i, sizeof(_rand));
1015 if (scard_gsm_auth(scard, _rand, sres, kc))
1016 break;
1017
1018 /* IMSI:Kc:SRES:RAND */
1019 for (j = 0; j < len; j++)
1020 printf("%c", imsi[j]);
1021 printf(":");
1022 for (j = 0; j < 8; j++)
1023 printf("%02X", kc[j]);
1024 printf(":");
1025 for (j = 0; j < 4; j++)
1026 printf("%02X", sres[j]);
1027 printf(":");
1028 for (j = 0; j < 16; j++)
1029 printf("%02X", _rand[j]);
1030 printf("\n");
1031 }
1032
1033 scard_deinit(scard);
1034
1035 return 0;
1036 }
1037
1038
1039 static void eapol_test_terminate(int sig, void *signal_ctx)
1040 {
1041 struct wpa_supplicant *wpa_s = signal_ctx;
1042 wpa_msg(wpa_s, MSG_INFO, "Signal %d received - terminating", sig);
1043 eloop_terminate();
1044 }
1045
1046
1047 static void usage(void)
1048 {
1049 printf("usage:\n"
1050 "eapol_test [-nWS] -c<conf> [-a<AS IP>] [-p<AS port>] "
1051 "[-s<AS secret>]\\\n"
1052 " [-r<count>] [-t<timeout>] [-C<Connect-Info>] \\\n"
1053 " [-M<client MAC address>] [-o<server cert file] \\\n"
1054 " [-N<attr spec>] \\\n"
1055 " [-A<client IP>]\n"
1056 "eapol_test scard\n"
1057 "eapol_test sim <PIN> <num triplets> [debug]\n"
1058 "\n");
1059 printf("options:\n"
1060 " -c<conf> = configuration file\n"
1061 " -a<AS IP> = IP address of the authentication server, "
1062 "default 127.0.0.1\n"
1063 " -p<AS port> = UDP port of the authentication server, "
1064 "default 1812\n"
1065 " -s<AS secret> = shared secret with the authentication "
1066 "server, default 'radius'\n"
1067 " -A<client IP> = IP address of the client, default: select "
1068 "automatically\n"
1069 " -r<count> = number of re-authentications\n"
1070 " -W = wait for a control interface monitor before starting\n"
1071 " -S = save configuration after authentication\n"
1072 " -n = no MPPE keys expected\n"
1073 " -t<timeout> = sets timeout in seconds (default: 30 s)\n"
1074 " -C<Connect-Info> = RADIUS Connect-Info (default: "
1075 "CONNECT 11Mbps 802.11b)\n"
1076 " -M<client MAC address> = Set own MAC address "
1077 "(Calling-Station-Id,\n"
1078 " default: 02:00:00:00:00:01)\n"
1079 " -o<server cert file> = Write received server certificate\n"
1080 " chain to the specified file\n"
1081 " -N<attr spec> = send arbitrary attribute specified by:\n"
1082 " attr_id:syntax:value or attr_id\n"
1083 " attr_id - number id of the attribute\n"
1084 " syntax - one of: s, d, x\n"
1085 " s = string\n"
1086 " d = integer\n"
1087 " x = octet string\n"
1088 " value - attribute value.\n"
1089 " When only attr_id is specified, NULL will be used as "
1090 "value.\n"
1091 " Multiple attributes can be specified by using the "
1092 "option several times.\n");
1093 }
1094
1095
1096 int main(int argc, char *argv[])
1097 {
1098 struct wpa_supplicant wpa_s;
1099 int c, ret = 1, wait_for_monitor = 0, save_config = 0;
1100 char *as_addr = "127.0.0.1";
1101 int as_port = 1812;
1102 char *as_secret = "radius";
1103 char *cli_addr = NULL;
1104 char *conf = NULL;
1105 int timeout = 30;
1106 char *pos;
1107 struct extra_radius_attr *p = NULL, *p1;
1108
1109 if (os_program_init())
1110 return -1;
1111
1112 hostapd_logger_register_cb(hostapd_logger_cb);
1113
1114 os_memset(&eapol_test, 0, sizeof(eapol_test));
1115 eapol_test.connect_info = "CONNECT 11Mbps 802.11b";
1116 os_memcpy(eapol_test.own_addr, "\x02\x00\x00\x00\x00\x01", ETH_ALEN);
1117
1118 wpa_debug_level = 0;
1119 wpa_debug_show_keys = 1;
1120
1121 for (;;) {
1122 c = getopt(argc, argv, "a:A:c:C:M:nN:o:p:r:s:St:W");
1123 if (c < 0)
1124 break;
1125 switch (c) {
1126 case 'a':
1127 as_addr = optarg;
1128 break;
1129 case 'A':
1130 cli_addr = optarg;
1131 break;
1132 case 'c':
1133 conf = optarg;
1134 break;
1135 case 'C':
1136 eapol_test.connect_info = optarg;
1137 break;
1138 case 'M':
1139 if (hwaddr_aton(optarg, eapol_test.own_addr)) {
1140 usage();
1141 return -1;
1142 }
1143 break;
1144 case 'n':
1145 eapol_test.no_mppe_keys++;
1146 break;
1147 case 'o':
1148 if (eapol_test.server_cert_file)
1149 fclose(eapol_test.server_cert_file);
1150 eapol_test.server_cert_file = fopen(optarg, "w");
1151 if (eapol_test.server_cert_file == NULL) {
1152 printf("Could not open '%s' for writing\n",
1153 optarg);
1154 return -1;
1155 }
1156 break;
1157 case 'p':
1158 as_port = atoi(optarg);
1159 break;
1160 case 'r':
1161 eapol_test.eapol_test_num_reauths = atoi(optarg);
1162 break;
1163 case 's':
1164 as_secret = optarg;
1165 break;
1166 case 'S':
1167 save_config++;
1168 break;
1169 case 't':
1170 timeout = atoi(optarg);
1171 break;
1172 case 'W':
1173 wait_for_monitor++;
1174 break;
1175 case 'N':
1176 p1 = os_zalloc(sizeof(*p1));
1177 if (p1 == NULL)
1178 break;
1179 if (!p)
1180 eapol_test.extra_attrs = p1;
1181 else
1182 p->next = p1;
1183 p = p1;
1184
1185 p->type = atoi(optarg);
1186 pos = os_strchr(optarg, ':');
1187 if (pos == NULL) {
1188 p->syntax = 'n';
1189 p->data = NULL;
1190 break;
1191 }
1192
1193 pos++;
1194 if (pos[0] == '\0' || pos[1] != ':') {
1195 printf("Incorrect format of attribute "
1196 "specification\n");
1197 break;
1198 }
1199
1200 p->syntax = pos[0];
1201 p->data = pos + 2;
1202 break;
1203 default:
1204 usage();
1205 return -1;
1206 }
1207 }
1208
1209 if (argc > optind && os_strcmp(argv[optind], "scard") == 0) {
1210 return scard_test();
1211 }
1212
1213 if (argc > optind && os_strcmp(argv[optind], "sim") == 0) {
1214 return scard_get_triplets(argc - optind - 1,
1215 &argv[optind + 1]);
1216 }
1217
1218 if (conf == NULL) {
1219 usage();
1220 printf("Configuration file is required.\n");
1221 return -1;
1222 }
1223
1224 if (eap_register_methods()) {
1225 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
1226 return -1;
1227 }
1228
1229 if (eloop_init()) {
1230 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
1231 return -1;
1232 }
1233
1234 os_memset(&wpa_s, 0, sizeof(wpa_s));
1235 eapol_test.wpa_s = &wpa_s;
1236 wpa_s.conf = wpa_config_read(conf);
1237 if (wpa_s.conf == NULL) {
1238 printf("Failed to parse configuration file '%s'.\n", conf);
1239 return -1;
1240 }
1241 if (wpa_s.conf->ssid == NULL) {
1242 printf("No networks defined.\n");
1243 return -1;
1244 }
1245
1246 wpa_init_conf(&eapol_test, &wpa_s, as_addr, as_port, as_secret,
1247 cli_addr);
1248 wpa_s.ctrl_iface = wpa_supplicant_ctrl_iface_init(&wpa_s);
1249 if (wpa_s.ctrl_iface == NULL) {
1250 printf("Failed to initialize control interface '%s'.\n"
1251 "You may have another eapol_test process already "
1252 "running or the file was\n"
1253 "left by an unclean termination of eapol_test in "
1254 "which case you will need\n"
1255 "to manually remove this file before starting "
1256 "eapol_test again.\n",
1257 wpa_s.conf->ctrl_interface);
1258 return -1;
1259 }
1260 if (wpa_supplicant_scard_init(&wpa_s, wpa_s.conf->ssid))
1261 return -1;
1262
1263 if (test_eapol(&eapol_test, &wpa_s, wpa_s.conf->ssid))
1264 return -1;
1265
1266 if (wpas_init_ext_pw(&wpa_s) < 0)
1267 return -1;
1268
1269 if (wait_for_monitor)
1270 wpa_supplicant_ctrl_iface_wait(wpa_s.ctrl_iface);
1271
1272 eloop_register_timeout(timeout, 0, eapol_test_timeout, &eapol_test,
1273 NULL);
1274 eloop_register_timeout(0, 0, send_eap_request_identity, &wpa_s, NULL);
1275 eloop_register_signal_terminate(eapol_test_terminate, &wpa_s);
1276 eloop_register_signal_reconfig(eapol_test_terminate, &wpa_s);
1277 eloop_run();
1278
1279 eloop_cancel_timeout(eapol_test_timeout, &eapol_test, NULL);
1280 eloop_cancel_timeout(eapol_sm_reauth, &eapol_test, NULL);
1281
1282 if (eapol_test_compare_pmk(&eapol_test) == 0 ||
1283 eapol_test.no_mppe_keys)
1284 ret = 0;
1285 if (eapol_test.auth_timed_out)
1286 ret = -2;
1287 if (eapol_test.radius_access_reject_received)
1288 ret = -3;
1289
1290 if (save_config)
1291 wpa_config_write(conf, wpa_s.conf);
1292
1293 test_eapol_clean(&eapol_test, &wpa_s);
1294
1295 eap_peer_unregister_methods();
1296 #ifdef CONFIG_AP
1297 eap_server_unregister_methods();
1298 #endif /* CONFIG_AP */
1299
1300 eloop_destroy();
1301
1302 if (eapol_test.server_cert_file)
1303 fclose(eapol_test.server_cert_file);
1304
1305 printf("MPPE keys OK: %d mismatch: %d\n",
1306 eapol_test.num_mppe_ok, eapol_test.num_mppe_mismatch);
1307 if (eapol_test.num_mppe_mismatch)
1308 ret = -4;
1309 if (ret)
1310 printf("FAILURE\n");
1311 else
1312 printf("SUCCESS\n");
1313
1314 os_program_deinit();
1315
1316 return ret;
1317 }
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