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eapol_test: Fix build after RADIUS msg API changes
[thirdparty/hostap.git] / wpa_supplicant / eapol_test.c
1 /*
2 * WPA Supplicant - test code
3 * Copyright (c) 2003-2007, Jouni Malinen <j@w1.fi>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 *
9 * Alternatively, this software may be distributed under the terms of BSD
10 * license.
11 *
12 * See README and COPYING for more details.
13 *
14 * IEEE 802.1X Supplicant test code (to be used in place of wpa_supplicant.c.
15 * Not used in production version.
16 */
17
18 #include "includes.h"
19 #include <assert.h>
20
21 #include "common.h"
22 #include "config.h"
23 #include "eapol_supp/eapol_supp_sm.h"
24 #include "eap_peer/eap.h"
25 #include "eloop.h"
26 #include "rsn_supp/wpa.h"
27 #include "eap_peer/eap_i.h"
28 #include "wpa_supplicant_i.h"
29 #include "radius/radius.h"
30 #include "radius/radius_client.h"
31 #include "ctrl_iface.h"
32 #include "pcsc_funcs.h"
33
34
35 extern int wpa_debug_level;
36 extern int wpa_debug_show_keys;
37
38 struct wpa_driver_ops *wpa_drivers[] = { NULL };
39
40
41 struct extra_radius_attr {
42 u8 type;
43 char syntax;
44 char *data;
45 struct extra_radius_attr *next;
46 };
47
48 struct eapol_test_data {
49 struct wpa_supplicant *wpa_s;
50
51 int eapol_test_num_reauths;
52 int no_mppe_keys;
53 int num_mppe_ok, num_mppe_mismatch;
54
55 u8 radius_identifier;
56 struct radius_msg *last_recv_radius;
57 struct in_addr own_ip_addr;
58 struct radius_client_data *radius;
59 struct hostapd_radius_servers *radius_conf;
60
61 u8 *last_eap_radius; /* last received EAP Response from Authentication
62 * Server */
63 size_t last_eap_radius_len;
64
65 u8 authenticator_pmk[PMK_LEN];
66 size_t authenticator_pmk_len;
67 int radius_access_accept_received;
68 int radius_access_reject_received;
69 int auth_timed_out;
70
71 u8 *eap_identity;
72 size_t eap_identity_len;
73
74 char *connect_info;
75 u8 own_addr[ETH_ALEN];
76 struct extra_radius_attr *extra_attrs;
77 };
78
79 static struct eapol_test_data eapol_test;
80
81
82 static void send_eap_request_identity(void *eloop_ctx, void *timeout_ctx);
83
84
85 static void hostapd_logger_cb(void *ctx, const u8 *addr, unsigned int module,
86 int level, const char *txt, size_t len)
87 {
88 if (addr)
89 wpa_printf(MSG_DEBUG, "STA " MACSTR ": %s\n",
90 MAC2STR(addr), txt);
91 else
92 wpa_printf(MSG_DEBUG, "%s", txt);
93 }
94
95
96 static int add_extra_attr(struct radius_msg *msg,
97 struct extra_radius_attr *attr)
98 {
99 size_t len;
100 char *pos;
101 u32 val;
102 char buf[128];
103
104 switch (attr->syntax) {
105 case 's':
106 os_snprintf(buf, sizeof(buf), "%s", attr->data);
107 len = os_strlen(buf);
108 break;
109 case 'n':
110 buf[0] = '\0';
111 len = 1;
112 break;
113 case 'x':
114 pos = attr->data;
115 if (pos[0] == '0' && pos[1] == 'x')
116 pos += 2;
117 len = os_strlen(pos);
118 if ((len & 1) || (len / 2) > sizeof(buf)) {
119 printf("Invalid extra attribute hexstring\n");
120 return -1;
121 }
122 len /= 2;
123 if (hexstr2bin(pos, (u8 *) buf, len) < 0) {
124 printf("Invalid extra attribute hexstring\n");
125 return -1;
126 }
127 break;
128 case 'd':
129 val = htonl(atoi(attr->data));
130 os_memcpy(buf, &val, 4);
131 len = 4;
132 break;
133 default:
134 printf("Incorrect extra attribute syntax specification\n");
135 return -1;
136 }
137
138 if (!radius_msg_add_attr(msg, attr->type, (u8 *) buf, len)) {
139 printf("Could not add attribute %d\n", attr->type);
140 return -1;
141 }
142
143 return 0;
144 }
145
146
147 static int add_extra_attrs(struct radius_msg *msg,
148 struct extra_radius_attr *attrs)
149 {
150 struct extra_radius_attr *p;
151 for (p = attrs; p; p = p->next) {
152 if (add_extra_attr(msg, p) < 0)
153 return -1;
154 }
155 return 0;
156 }
157
158
159 static struct extra_radius_attr *
160 find_extra_attr(struct extra_radius_attr *attrs, u8 type)
161 {
162 struct extra_radius_attr *p;
163 for (p = attrs; p; p = p->next) {
164 if (p->type == type)
165 return p;
166 }
167 return NULL;
168 }
169
170
171 static void ieee802_1x_encapsulate_radius(struct eapol_test_data *e,
172 const u8 *eap, size_t len)
173 {
174 struct radius_msg *msg;
175 char buf[128];
176 const struct eap_hdr *hdr;
177 const u8 *pos;
178
179 wpa_printf(MSG_DEBUG, "Encapsulating EAP message into a RADIUS "
180 "packet");
181
182 e->radius_identifier = radius_client_get_id(e->radius);
183 msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST,
184 e->radius_identifier);
185 if (msg == NULL) {
186 printf("Could not create net RADIUS packet\n");
187 return;
188 }
189
190 radius_msg_make_authenticator(msg, (u8 *) e, sizeof(*e));
191
192 hdr = (const struct eap_hdr *) eap;
193 pos = (const u8 *) (hdr + 1);
194 if (len > sizeof(*hdr) && hdr->code == EAP_CODE_RESPONSE &&
195 pos[0] == EAP_TYPE_IDENTITY) {
196 pos++;
197 os_free(e->eap_identity);
198 e->eap_identity_len = len - sizeof(*hdr) - 1;
199 e->eap_identity = os_malloc(e->eap_identity_len);
200 if (e->eap_identity) {
201 os_memcpy(e->eap_identity, pos, e->eap_identity_len);
202 wpa_hexdump(MSG_DEBUG, "Learned identity from "
203 "EAP-Response-Identity",
204 e->eap_identity, e->eap_identity_len);
205 }
206 }
207
208 if (e->eap_identity &&
209 !radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME,
210 e->eap_identity, e->eap_identity_len)) {
211 printf("Could not add User-Name\n");
212 goto fail;
213 }
214
215 if (!find_extra_attr(e->extra_attrs, RADIUS_ATTR_NAS_IP_ADDRESS) &&
216 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IP_ADDRESS,
217 (u8 *) &e->own_ip_addr, 4)) {
218 printf("Could not add NAS-IP-Address\n");
219 goto fail;
220 }
221
222 os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
223 MAC2STR(e->wpa_s->own_addr));
224 if (!find_extra_attr(e->extra_attrs, RADIUS_ATTR_CALLING_STATION_ID)
225 &&
226 !radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID,
227 (u8 *) buf, os_strlen(buf))) {
228 printf("Could not add Calling-Station-Id\n");
229 goto fail;
230 }
231
232 /* TODO: should probably check MTU from driver config; 2304 is max for
233 * IEEE 802.11, but use 1400 to avoid problems with too large packets
234 */
235 if (!find_extra_attr(e->extra_attrs, RADIUS_ATTR_FRAMED_MTU) &&
236 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_FRAMED_MTU, 1400)) {
237 printf("Could not add Framed-MTU\n");
238 goto fail;
239 }
240
241 if (!find_extra_attr(e->extra_attrs, RADIUS_ATTR_NAS_PORT_TYPE) &&
242 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT_TYPE,
243 RADIUS_NAS_PORT_TYPE_IEEE_802_11)) {
244 printf("Could not add NAS-Port-Type\n");
245 goto fail;
246 }
247
248 os_snprintf(buf, sizeof(buf), "%s", e->connect_info);
249 if (!find_extra_attr(e->extra_attrs, RADIUS_ATTR_CONNECT_INFO) &&
250 !radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO,
251 (u8 *) buf, os_strlen(buf))) {
252 printf("Could not add Connect-Info\n");
253 goto fail;
254 }
255
256 if (add_extra_attrs(msg, e->extra_attrs) < 0)
257 goto fail;
258
259 if (eap && !radius_msg_add_eap(msg, eap, len)) {
260 printf("Could not add EAP-Message\n");
261 goto fail;
262 }
263
264 /* State attribute must be copied if and only if this packet is
265 * Access-Request reply to the previous Access-Challenge */
266 if (e->last_recv_radius &&
267 radius_msg_get_hdr(e->last_recv_radius)->code ==
268 RADIUS_CODE_ACCESS_CHALLENGE) {
269 int res = radius_msg_copy_attr(msg, e->last_recv_radius,
270 RADIUS_ATTR_STATE);
271 if (res < 0) {
272 printf("Could not copy State attribute from previous "
273 "Access-Challenge\n");
274 goto fail;
275 }
276 if (res > 0) {
277 wpa_printf(MSG_DEBUG, " Copied RADIUS State "
278 "Attribute");
279 }
280 }
281
282 radius_client_send(e->radius, msg, RADIUS_AUTH, e->wpa_s->own_addr);
283 return;
284
285 fail:
286 radius_msg_free(msg);
287 }
288
289
290 static int eapol_test_eapol_send(void *ctx, int type, const u8 *buf,
291 size_t len)
292 {
293 /* struct wpa_supplicant *wpa_s = ctx; */
294 printf("WPA: eapol_test_eapol_send(type=%d len=%lu)\n",
295 type, (unsigned long) len);
296 if (type == IEEE802_1X_TYPE_EAP_PACKET) {
297 wpa_hexdump(MSG_DEBUG, "TX EAP -> RADIUS", buf, len);
298 ieee802_1x_encapsulate_radius(&eapol_test, buf, len);
299 }
300 return 0;
301 }
302
303
304 static void eapol_test_set_config_blob(void *ctx,
305 struct wpa_config_blob *blob)
306 {
307 struct wpa_supplicant *wpa_s = ctx;
308 wpa_config_set_blob(wpa_s->conf, blob);
309 }
310
311
312 static const struct wpa_config_blob *
313 eapol_test_get_config_blob(void *ctx, const char *name)
314 {
315 struct wpa_supplicant *wpa_s = ctx;
316 return wpa_config_get_blob(wpa_s->conf, name);
317 }
318
319
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 int test_eapol(struct eapol_test_data *e, struct wpa_supplicant *wpa_s,
386 struct wpa_ssid *ssid)
387 {
388 struct eapol_config eapol_conf;
389 struct eapol_ctx *ctx;
390
391 ctx = os_zalloc(sizeof(*ctx));
392 if (ctx == NULL) {
393 printf("Failed to allocate EAPOL context.\n");
394 return -1;
395 }
396 ctx->ctx = wpa_s;
397 ctx->msg_ctx = wpa_s;
398 ctx->scard_ctx = wpa_s->scard;
399 ctx->cb = eapol_sm_cb;
400 ctx->cb_ctx = e;
401 ctx->eapol_send_ctx = wpa_s;
402 ctx->preauth = 0;
403 ctx->eapol_done_cb = eapol_test_eapol_done_cb;
404 ctx->eapol_send = eapol_test_eapol_send;
405 ctx->set_config_blob = eapol_test_set_config_blob;
406 ctx->get_config_blob = eapol_test_get_config_blob;
407 ctx->opensc_engine_path = wpa_s->conf->opensc_engine_path;
408 ctx->pkcs11_engine_path = wpa_s->conf->pkcs11_engine_path;
409 ctx->pkcs11_module_path = wpa_s->conf->pkcs11_module_path;
410
411 wpa_s->eapol = eapol_sm_init(ctx);
412 if (wpa_s->eapol == NULL) {
413 os_free(ctx);
414 printf("Failed to initialize EAPOL state machines.\n");
415 return -1;
416 }
417
418 wpa_s->current_ssid = ssid;
419 os_memset(&eapol_conf, 0, sizeof(eapol_conf));
420 eapol_conf.accept_802_1x_keys = 1;
421 eapol_conf.required_keys = 0;
422 eapol_conf.fast_reauth = wpa_s->conf->fast_reauth;
423 eapol_conf.workaround = ssid->eap_workaround;
424 eapol_sm_notify_config(wpa_s->eapol, &ssid->eap, &eapol_conf);
425 eapol_sm_register_scard_ctx(wpa_s->eapol, wpa_s->scard);
426
427
428 eapol_sm_notify_portValid(wpa_s->eapol, FALSE);
429 /* 802.1X::portControl = Auto */
430 eapol_sm_notify_portEnabled(wpa_s->eapol, TRUE);
431
432 return 0;
433 }
434
435
436 static void test_eapol_clean(struct eapol_test_data *e,
437 struct wpa_supplicant *wpa_s)
438 {
439 struct extra_radius_attr *p, *prev;
440
441 radius_client_deinit(e->radius);
442 os_free(e->last_eap_radius);
443 radius_msg_free(e->last_recv_radius);
444 e->last_recv_radius = NULL;
445 os_free(e->eap_identity);
446 e->eap_identity = NULL;
447 eapol_sm_deinit(wpa_s->eapol);
448 wpa_s->eapol = NULL;
449 if (e->radius_conf && e->radius_conf->auth_server) {
450 os_free(e->radius_conf->auth_server->shared_secret);
451 os_free(e->radius_conf->auth_server);
452 }
453 os_free(e->radius_conf);
454 e->radius_conf = NULL;
455 scard_deinit(wpa_s->scard);
456 if (wpa_s->ctrl_iface) {
457 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
458 wpa_s->ctrl_iface = NULL;
459 }
460 wpa_config_free(wpa_s->conf);
461
462 p = e->extra_attrs;
463 while (p) {
464 prev = p;
465 p = p->next;
466 os_free(prev);
467 }
468 }
469
470
471 static void send_eap_request_identity(void *eloop_ctx, void *timeout_ctx)
472 {
473 struct wpa_supplicant *wpa_s = eloop_ctx;
474 u8 buf[100], *pos;
475 struct ieee802_1x_hdr *hdr;
476 struct eap_hdr *eap;
477
478 hdr = (struct ieee802_1x_hdr *) buf;
479 hdr->version = EAPOL_VERSION;
480 hdr->type = IEEE802_1X_TYPE_EAP_PACKET;
481 hdr->length = htons(5);
482
483 eap = (struct eap_hdr *) (hdr + 1);
484 eap->code = EAP_CODE_REQUEST;
485 eap->identifier = 0;
486 eap->length = htons(5);
487 pos = (u8 *) (eap + 1);
488 *pos = EAP_TYPE_IDENTITY;
489
490 printf("Sending fake EAP-Request-Identity\n");
491 eapol_sm_rx_eapol(wpa_s->eapol, wpa_s->bssid, buf,
492 sizeof(*hdr) + 5);
493 }
494
495
496 static void eapol_test_timeout(void *eloop_ctx, void *timeout_ctx)
497 {
498 struct eapol_test_data *e = eloop_ctx;
499 printf("EAPOL test timed out\n");
500 e->auth_timed_out = 1;
501 eloop_terminate();
502 }
503
504
505 static char *eap_type_text(u8 type)
506 {
507 switch (type) {
508 case EAP_TYPE_IDENTITY: return "Identity";
509 case EAP_TYPE_NOTIFICATION: return "Notification";
510 case EAP_TYPE_NAK: return "Nak";
511 case EAP_TYPE_TLS: return "TLS";
512 case EAP_TYPE_TTLS: return "TTLS";
513 case EAP_TYPE_PEAP: return "PEAP";
514 case EAP_TYPE_SIM: return "SIM";
515 case EAP_TYPE_GTC: return "GTC";
516 case EAP_TYPE_MD5: return "MD5";
517 case EAP_TYPE_OTP: return "OTP";
518 case EAP_TYPE_FAST: return "FAST";
519 case EAP_TYPE_SAKE: return "SAKE";
520 case EAP_TYPE_PSK: return "PSK";
521 default: return "Unknown";
522 }
523 }
524
525
526 static void ieee802_1x_decapsulate_radius(struct eapol_test_data *e)
527 {
528 u8 *eap;
529 size_t len;
530 struct eap_hdr *hdr;
531 int eap_type = -1;
532 char buf[64];
533 struct radius_msg *msg;
534
535 if (e->last_recv_radius == NULL)
536 return;
537
538 msg = e->last_recv_radius;
539
540 eap = radius_msg_get_eap(msg, &len);
541 if (eap == NULL) {
542 /* draft-aboba-radius-rfc2869bis-20.txt, Chap. 2.6.3:
543 * RADIUS server SHOULD NOT send Access-Reject/no EAP-Message
544 * attribute */
545 wpa_printf(MSG_DEBUG, "could not extract "
546 "EAP-Message from RADIUS message");
547 os_free(e->last_eap_radius);
548 e->last_eap_radius = NULL;
549 e->last_eap_radius_len = 0;
550 return;
551 }
552
553 if (len < sizeof(*hdr)) {
554 wpa_printf(MSG_DEBUG, "too short EAP packet "
555 "received from authentication server");
556 os_free(eap);
557 return;
558 }
559
560 if (len > sizeof(*hdr))
561 eap_type = eap[sizeof(*hdr)];
562
563 hdr = (struct eap_hdr *) eap;
564 switch (hdr->code) {
565 case EAP_CODE_REQUEST:
566 os_snprintf(buf, sizeof(buf), "EAP-Request-%s (%d)",
567 eap_type >= 0 ? eap_type_text(eap_type) : "??",
568 eap_type);
569 break;
570 case EAP_CODE_RESPONSE:
571 os_snprintf(buf, sizeof(buf), "EAP Response-%s (%d)",
572 eap_type >= 0 ? eap_type_text(eap_type) : "??",
573 eap_type);
574 break;
575 case EAP_CODE_SUCCESS:
576 os_strlcpy(buf, "EAP Success", sizeof(buf));
577 /* LEAP uses EAP Success within an authentication, so must not
578 * stop here with eloop_terminate(); */
579 break;
580 case EAP_CODE_FAILURE:
581 os_strlcpy(buf, "EAP Failure", sizeof(buf));
582 eloop_terminate();
583 break;
584 default:
585 os_strlcpy(buf, "unknown EAP code", sizeof(buf));
586 wpa_hexdump(MSG_DEBUG, "Decapsulated EAP packet", eap, len);
587 break;
588 }
589 wpa_printf(MSG_DEBUG, "decapsulated EAP packet (code=%d "
590 "id=%d len=%d) from RADIUS server: %s",
591 hdr->code, hdr->identifier, ntohs(hdr->length), buf);
592
593 /* sta->eapol_sm->be_auth.idFromServer = hdr->identifier; */
594
595 os_free(e->last_eap_radius);
596 e->last_eap_radius = eap;
597 e->last_eap_radius_len = len;
598
599 {
600 struct ieee802_1x_hdr *dot1x;
601 dot1x = os_malloc(sizeof(*dot1x) + len);
602 assert(dot1x != NULL);
603 dot1x->version = EAPOL_VERSION;
604 dot1x->type = IEEE802_1X_TYPE_EAP_PACKET;
605 dot1x->length = htons(len);
606 os_memcpy((u8 *) (dot1x + 1), eap, len);
607 eapol_sm_rx_eapol(e->wpa_s->eapol, e->wpa_s->bssid,
608 (u8 *) dot1x, sizeof(*dot1x) + len);
609 os_free(dot1x);
610 }
611 }
612
613
614 static void ieee802_1x_get_keys(struct eapol_test_data *e,
615 struct radius_msg *msg, struct radius_msg *req,
616 const u8 *shared_secret,
617 size_t shared_secret_len)
618 {
619 struct radius_ms_mppe_keys *keys;
620
621 keys = radius_msg_get_ms_keys(msg, req, shared_secret,
622 shared_secret_len);
623 if (keys && keys->send == NULL && keys->recv == NULL) {
624 os_free(keys);
625 keys = radius_msg_get_cisco_keys(msg, req, shared_secret,
626 shared_secret_len);
627 }
628
629 if (keys) {
630 if (keys->send) {
631 wpa_hexdump(MSG_DEBUG, "MS-MPPE-Send-Key (sign)",
632 keys->send, keys->send_len);
633 }
634 if (keys->recv) {
635 wpa_hexdump(MSG_DEBUG, "MS-MPPE-Recv-Key (crypt)",
636 keys->recv, keys->recv_len);
637 e->authenticator_pmk_len =
638 keys->recv_len > PMK_LEN ? PMK_LEN :
639 keys->recv_len;
640 os_memcpy(e->authenticator_pmk, keys->recv,
641 e->authenticator_pmk_len);
642 if (e->authenticator_pmk_len == 16 && keys->send &&
643 keys->send_len == 16) {
644 /* MS-CHAP-v2 derives 16 octet keys */
645 wpa_printf(MSG_DEBUG, "Use MS-MPPE-Send-Key "
646 "to extend PMK to 32 octets");
647 os_memcpy(e->authenticator_pmk +
648 e->authenticator_pmk_len,
649 keys->send, keys->send_len);
650 e->authenticator_pmk_len += keys->send_len;
651 }
652 }
653
654 os_free(keys->send);
655 os_free(keys->recv);
656 os_free(keys);
657 }
658 }
659
660
661 /* Process the RADIUS frames from Authentication Server */
662 static RadiusRxResult
663 ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req,
664 const u8 *shared_secret, size_t shared_secret_len,
665 void *data)
666 {
667 struct eapol_test_data *e = data;
668 struct radius_hdr *hdr = radius_msg_get_hdr(msg);
669
670 /* RFC 2869, Ch. 5.13: valid Message-Authenticator attribute MUST be
671 * present when packet contains an EAP-Message attribute */
672 if (hdr->code == RADIUS_CODE_ACCESS_REJECT &&
673 radius_msg_get_attr(msg, RADIUS_ATTR_MESSAGE_AUTHENTICATOR, NULL,
674 0) < 0 &&
675 radius_msg_get_attr(msg, RADIUS_ATTR_EAP_MESSAGE, NULL, 0) < 0) {
676 wpa_printf(MSG_DEBUG, "Allowing RADIUS "
677 "Access-Reject without Message-Authenticator "
678 "since it does not include EAP-Message\n");
679 } else if (radius_msg_verify(msg, shared_secret, shared_secret_len,
680 req, 1)) {
681 printf("Incoming RADIUS packet did not have correct "
682 "Message-Authenticator - dropped\n");
683 return RADIUS_RX_UNKNOWN;
684 }
685
686 if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
687 hdr->code != RADIUS_CODE_ACCESS_REJECT &&
688 hdr->code != RADIUS_CODE_ACCESS_CHALLENGE) {
689 printf("Unknown RADIUS message code\n");
690 return RADIUS_RX_UNKNOWN;
691 }
692
693 e->radius_identifier = -1;
694 wpa_printf(MSG_DEBUG, "RADIUS packet matching with station");
695
696 radius_msg_free(e->last_recv_radius);
697 e->last_recv_radius = msg;
698
699 switch (hdr->code) {
700 case RADIUS_CODE_ACCESS_ACCEPT:
701 e->radius_access_accept_received = 1;
702 ieee802_1x_get_keys(e, msg, req, shared_secret,
703 shared_secret_len);
704 break;
705 case RADIUS_CODE_ACCESS_REJECT:
706 e->radius_access_reject_received = 1;
707 break;
708 }
709
710 ieee802_1x_decapsulate_radius(e);
711
712 if ((hdr->code == RADIUS_CODE_ACCESS_ACCEPT &&
713 e->eapol_test_num_reauths < 0) ||
714 hdr->code == RADIUS_CODE_ACCESS_REJECT) {
715 eloop_terminate();
716 }
717
718 return RADIUS_RX_QUEUED;
719 }
720
721
722 static void wpa_init_conf(struct eapol_test_data *e,
723 struct wpa_supplicant *wpa_s, const char *authsrv,
724 int port, const char *secret,
725 const char *cli_addr)
726 {
727 struct hostapd_radius_server *as;
728 int res;
729
730 wpa_s->bssid[5] = 1;
731 os_memcpy(wpa_s->own_addr, e->own_addr, ETH_ALEN);
732 e->own_ip_addr.s_addr = htonl((127 << 24) | 1);
733 os_strlcpy(wpa_s->ifname, "test", sizeof(wpa_s->ifname));
734
735 e->radius_conf = os_zalloc(sizeof(struct hostapd_radius_servers));
736 assert(e->radius_conf != NULL);
737 e->radius_conf->num_auth_servers = 1;
738 as = os_zalloc(sizeof(struct hostapd_radius_server));
739 assert(as != NULL);
740 #if defined(CONFIG_NATIVE_WINDOWS) || defined(CONFIG_ANSI_C_EXTRA)
741 {
742 int a[4];
743 u8 *pos;
744 sscanf(authsrv, "%d.%d.%d.%d", &a[0], &a[1], &a[2], &a[3]);
745 pos = (u8 *) &as->addr.u.v4;
746 *pos++ = a[0];
747 *pos++ = a[1];
748 *pos++ = a[2];
749 *pos++ = a[3];
750 }
751 #else /* CONFIG_NATIVE_WINDOWS or CONFIG_ANSI_C_EXTRA */
752 inet_aton(authsrv, &as->addr.u.v4);
753 #endif /* CONFIG_NATIVE_WINDOWS or CONFIG_ANSI_C_EXTRA */
754 as->addr.af = AF_INET;
755 as->port = port;
756 as->shared_secret = (u8 *) os_strdup(secret);
757 as->shared_secret_len = os_strlen(secret);
758 e->radius_conf->auth_server = as;
759 e->radius_conf->auth_servers = as;
760 e->radius_conf->msg_dumps = 1;
761 if (cli_addr) {
762 if (hostapd_parse_ip_addr(cli_addr,
763 &e->radius_conf->client_addr) == 0)
764 e->radius_conf->force_client_addr = 1;
765 else {
766 wpa_printf(MSG_ERROR, "Invalid IP address '%s'",
767 cli_addr);
768 assert(0);
769 }
770 }
771
772 e->radius = radius_client_init(wpa_s, e->radius_conf);
773 assert(e->radius != NULL);
774
775 res = radius_client_register(e->radius, RADIUS_AUTH,
776 ieee802_1x_receive_auth, e);
777 assert(res == 0);
778 }
779
780
781 static int scard_test(void)
782 {
783 struct scard_data *scard;
784 size_t len;
785 char imsi[20];
786 unsigned char _rand[16];
787 #ifdef PCSC_FUNCS
788 unsigned char sres[4];
789 unsigned char kc[8];
790 #endif /* PCSC_FUNCS */
791 #define num_triplets 5
792 unsigned char rand_[num_triplets][16];
793 unsigned char sres_[num_triplets][4];
794 unsigned char kc_[num_triplets][8];
795 int i, res;
796 size_t j;
797
798 #define AKA_RAND_LEN 16
799 #define AKA_AUTN_LEN 16
800 #define AKA_AUTS_LEN 14
801 #define RES_MAX_LEN 16
802 #define IK_LEN 16
803 #define CK_LEN 16
804 unsigned char aka_rand[AKA_RAND_LEN];
805 unsigned char aka_autn[AKA_AUTN_LEN];
806 unsigned char aka_auts[AKA_AUTS_LEN];
807 unsigned char aka_res[RES_MAX_LEN];
808 size_t aka_res_len;
809 unsigned char aka_ik[IK_LEN];
810 unsigned char aka_ck[CK_LEN];
811
812 scard = scard_init(SCARD_TRY_BOTH);
813 if (scard == NULL)
814 return -1;
815 if (scard_set_pin(scard, "1234")) {
816 wpa_printf(MSG_WARNING, "PIN validation failed");
817 scard_deinit(scard);
818 return -1;
819 }
820
821 len = sizeof(imsi);
822 if (scard_get_imsi(scard, imsi, &len))
823 goto failed;
824 wpa_hexdump_ascii(MSG_DEBUG, "SCARD: IMSI", (u8 *) imsi, len);
825 /* NOTE: Permanent Username: 1 | IMSI */
826
827 os_memset(_rand, 0, sizeof(_rand));
828 if (scard_gsm_auth(scard, _rand, sres, kc))
829 goto failed;
830
831 os_memset(_rand, 0xff, sizeof(_rand));
832 if (scard_gsm_auth(scard, _rand, sres, kc))
833 goto failed;
834
835 for (i = 0; i < num_triplets; i++) {
836 os_memset(rand_[i], i, sizeof(rand_[i]));
837 if (scard_gsm_auth(scard, rand_[i], sres_[i], kc_[i]))
838 goto failed;
839 }
840
841 for (i = 0; i < num_triplets; i++) {
842 printf("1");
843 for (j = 0; j < len; j++)
844 printf("%c", imsi[j]);
845 printf(",");
846 for (j = 0; j < 16; j++)
847 printf("%02X", rand_[i][j]);
848 printf(",");
849 for (j = 0; j < 4; j++)
850 printf("%02X", sres_[i][j]);
851 printf(",");
852 for (j = 0; j < 8; j++)
853 printf("%02X", kc_[i][j]);
854 printf("\n");
855 }
856
857 wpa_printf(MSG_DEBUG, "Trying to use UMTS authentication");
858
859 /* seq 39 (0x28) */
860 os_memset(aka_rand, 0xaa, 16);
861 os_memcpy(aka_autn, "\x86\x71\x31\xcb\xa2\xfc\x61\xdf"
862 "\xa3\xb3\x97\x9d\x07\x32\xa2\x12", 16);
863
864 res = scard_umts_auth(scard, aka_rand, aka_autn, aka_res, &aka_res_len,
865 aka_ik, aka_ck, aka_auts);
866 if (res == 0) {
867 wpa_printf(MSG_DEBUG, "UMTS auth completed successfully");
868 wpa_hexdump(MSG_DEBUG, "RES", aka_res, aka_res_len);
869 wpa_hexdump(MSG_DEBUG, "IK", aka_ik, IK_LEN);
870 wpa_hexdump(MSG_DEBUG, "CK", aka_ck, CK_LEN);
871 } else if (res == -2) {
872 wpa_printf(MSG_DEBUG, "UMTS auth resulted in synchronization "
873 "failure");
874 wpa_hexdump(MSG_DEBUG, "AUTS", aka_auts, AKA_AUTS_LEN);
875 } else {
876 wpa_printf(MSG_DEBUG, "UMTS auth failed");
877 }
878
879 failed:
880 scard_deinit(scard);
881
882 return 0;
883 #undef num_triplets
884 }
885
886
887 static int scard_get_triplets(int argc, char *argv[])
888 {
889 struct scard_data *scard;
890 size_t len;
891 char imsi[20];
892 unsigned char _rand[16];
893 unsigned char sres[4];
894 unsigned char kc[8];
895 int num_triplets;
896 int i;
897 size_t j;
898
899 if (argc < 2 || ((num_triplets = atoi(argv[1])) <= 0)) {
900 printf("invalid parameters for sim command\n");
901 return -1;
902 }
903
904 if (argc <= 2 || os_strcmp(argv[2], "debug") != 0) {
905 /* disable debug output */
906 wpa_debug_level = 99;
907 }
908
909 scard = scard_init(SCARD_GSM_SIM_ONLY);
910 if (scard == NULL) {
911 printf("Failed to open smartcard connection\n");
912 return -1;
913 }
914 if (scard_set_pin(scard, argv[0])) {
915 wpa_printf(MSG_WARNING, "PIN validation failed");
916 scard_deinit(scard);
917 return -1;
918 }
919
920 len = sizeof(imsi);
921 if (scard_get_imsi(scard, imsi, &len)) {
922 scard_deinit(scard);
923 return -1;
924 }
925
926 for (i = 0; i < num_triplets; i++) {
927 os_memset(_rand, i, sizeof(_rand));
928 if (scard_gsm_auth(scard, _rand, sres, kc))
929 break;
930
931 /* IMSI:Kc:SRES:RAND */
932 for (j = 0; j < len; j++)
933 printf("%c", imsi[j]);
934 printf(":");
935 for (j = 0; j < 8; j++)
936 printf("%02X", kc[j]);
937 printf(":");
938 for (j = 0; j < 4; j++)
939 printf("%02X", sres[j]);
940 printf(":");
941 for (j = 0; j < 16; j++)
942 printf("%02X", _rand[j]);
943 printf("\n");
944 }
945
946 scard_deinit(scard);
947
948 return 0;
949 }
950
951
952 static void eapol_test_terminate(int sig, void *eloop_ctx,
953 void *signal_ctx)
954 {
955 struct wpa_supplicant *wpa_s = eloop_ctx;
956 wpa_msg(wpa_s, MSG_INFO, "Signal %d received - terminating", sig);
957 eloop_terminate();
958 }
959
960
961 static void usage(void)
962 {
963 printf("usage:\n"
964 "eapol_test [-nWS] -c<conf> [-a<AS IP>] [-p<AS port>] "
965 "[-s<AS secret>]\\\n"
966 " [-r<count>] [-t<timeout>] [-C<Connect-Info>] \\\n"
967 " [-M<client MAC address>] \\\n"
968 " [-N<attr spec>] \\\n"
969 " [-A<client IP>]\n"
970 "eapol_test scard\n"
971 "eapol_test sim <PIN> <num triplets> [debug]\n"
972 "\n");
973 printf("options:\n"
974 " -c<conf> = configuration file\n"
975 " -a<AS IP> = IP address of the authentication server, "
976 "default 127.0.0.1\n"
977 " -p<AS port> = UDP port of the authentication server, "
978 "default 1812\n"
979 " -s<AS secret> = shared secret with the authentication "
980 "server, default 'radius'\n"
981 " -A<client IP> = IP address of the client, default: select "
982 "automatically\n"
983 " -r<count> = number of re-authentications\n"
984 " -W = wait for a control interface monitor before starting\n"
985 " -S = save configuration after authentication\n"
986 " -n = no MPPE keys expected\n"
987 " -t<timeout> = sets timeout in seconds (default: 30 s)\n"
988 " -C<Connect-Info> = RADIUS Connect-Info (default: "
989 "CONNECT 11Mbps 802.11b)\n"
990 " -M<client MAC address> = Set own MAC address "
991 "(Calling-Station-Id,\n"
992 " default: 02:00:00:00:00:01)\n"
993 " -N<attr spec> = send arbitrary attribute specified by:\n"
994 " attr_id:syntax:value or attr_id\n"
995 " attr_id - number id of the attribute\n"
996 " syntax - one of: s, d, x\n"
997 " s = string\n"
998 " d = integer\n"
999 " x = octet string\n"
1000 " value - attribute value.\n"
1001 " When only attr_id is specified, NULL will be used as "
1002 "value.\n"
1003 " Multiple attributes can be specified by using the "
1004 "option several times.\n");
1005 }
1006
1007
1008 int main(int argc, char *argv[])
1009 {
1010 struct wpa_supplicant wpa_s;
1011 int c, ret = 1, wait_for_monitor = 0, save_config = 0;
1012 char *as_addr = "127.0.0.1";
1013 int as_port = 1812;
1014 char *as_secret = "radius";
1015 char *cli_addr = NULL;
1016 char *conf = NULL;
1017 int timeout = 30;
1018 char *pos;
1019 struct extra_radius_attr *p = NULL, *p1;
1020
1021 if (os_program_init())
1022 return -1;
1023
1024 hostapd_logger_register_cb(hostapd_logger_cb);
1025
1026 os_memset(&eapol_test, 0, sizeof(eapol_test));
1027 eapol_test.connect_info = "CONNECT 11Mbps 802.11b";
1028 os_memcpy(eapol_test.own_addr, "\x02\x00\x00\x00\x00\x01", ETH_ALEN);
1029
1030 wpa_debug_level = 0;
1031 wpa_debug_show_keys = 1;
1032
1033 for (;;) {
1034 c = getopt(argc, argv, "a:A:c:C:M:nN:p:r:s:St:W");
1035 if (c < 0)
1036 break;
1037 switch (c) {
1038 case 'a':
1039 as_addr = optarg;
1040 break;
1041 case 'A':
1042 cli_addr = optarg;
1043 break;
1044 case 'c':
1045 conf = optarg;
1046 break;
1047 case 'C':
1048 eapol_test.connect_info = optarg;
1049 break;
1050 case 'M':
1051 if (hwaddr_aton(optarg, eapol_test.own_addr)) {
1052 usage();
1053 return -1;
1054 }
1055 break;
1056 case 'n':
1057 eapol_test.no_mppe_keys++;
1058 break;
1059 case 'p':
1060 as_port = atoi(optarg);
1061 break;
1062 case 'r':
1063 eapol_test.eapol_test_num_reauths = atoi(optarg);
1064 break;
1065 case 's':
1066 as_secret = optarg;
1067 break;
1068 case 'S':
1069 save_config++;
1070 break;
1071 case 't':
1072 timeout = atoi(optarg);
1073 break;
1074 case 'W':
1075 wait_for_monitor++;
1076 break;
1077 case 'N':
1078 p1 = os_zalloc(sizeof(p1));
1079 if (p1 == NULL)
1080 break;
1081 if (!p)
1082 eapol_test.extra_attrs = p1;
1083 else
1084 p->next = p1;
1085 p = p1;
1086
1087 p->type = atoi(optarg);
1088 pos = os_strchr(optarg, ':');
1089 if (pos == NULL) {
1090 p->syntax = 'n';
1091 p->data = NULL;
1092 break;
1093 }
1094
1095 pos++;
1096 if (pos[0] == '\0' || pos[1] != ':') {
1097 printf("Incorrect format of attribute "
1098 "specification\n");
1099 break;
1100 }
1101
1102 p->syntax = pos[0];
1103 p->data = pos + 2;
1104 break;
1105 default:
1106 usage();
1107 return -1;
1108 }
1109 }
1110
1111 if (argc > optind && os_strcmp(argv[optind], "scard") == 0) {
1112 return scard_test();
1113 }
1114
1115 if (argc > optind && os_strcmp(argv[optind], "sim") == 0) {
1116 return scard_get_triplets(argc - optind - 1,
1117 &argv[optind + 1]);
1118 }
1119
1120 if (conf == NULL) {
1121 usage();
1122 printf("Configuration file is required.\n");
1123 return -1;
1124 }
1125
1126 if (eap_register_methods()) {
1127 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
1128 return -1;
1129 }
1130
1131 if (eloop_init(&wpa_s)) {
1132 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
1133 return -1;
1134 }
1135
1136 os_memset(&wpa_s, 0, sizeof(wpa_s));
1137 eapol_test.wpa_s = &wpa_s;
1138 wpa_s.conf = wpa_config_read(conf);
1139 if (wpa_s.conf == NULL) {
1140 printf("Failed to parse configuration file '%s'.\n", conf);
1141 return -1;
1142 }
1143 if (wpa_s.conf->ssid == NULL) {
1144 printf("No networks defined.\n");
1145 return -1;
1146 }
1147
1148 wpa_init_conf(&eapol_test, &wpa_s, as_addr, as_port, as_secret,
1149 cli_addr);
1150 wpa_s.ctrl_iface = wpa_supplicant_ctrl_iface_init(&wpa_s);
1151 if (wpa_s.ctrl_iface == NULL) {
1152 printf("Failed to initialize control interface '%s'.\n"
1153 "You may have another eapol_test process already "
1154 "running or the file was\n"
1155 "left by an unclean termination of eapol_test in "
1156 "which case you will need\n"
1157 "to manually remove this file before starting "
1158 "eapol_test again.\n",
1159 wpa_s.conf->ctrl_interface);
1160 return -1;
1161 }
1162 if (wpa_supplicant_scard_init(&wpa_s, wpa_s.conf->ssid))
1163 return -1;
1164
1165 if (test_eapol(&eapol_test, &wpa_s, wpa_s.conf->ssid))
1166 return -1;
1167
1168 if (wait_for_monitor)
1169 wpa_supplicant_ctrl_iface_wait(wpa_s.ctrl_iface);
1170
1171 eloop_register_timeout(timeout, 0, eapol_test_timeout, &eapol_test,
1172 NULL);
1173 eloop_register_timeout(0, 0, send_eap_request_identity, &wpa_s, NULL);
1174 eloop_register_signal_terminate(eapol_test_terminate, NULL);
1175 eloop_register_signal_reconfig(eapol_test_terminate, NULL);
1176 eloop_run();
1177
1178 eloop_cancel_timeout(eapol_test_timeout, &eapol_test, NULL);
1179 eloop_cancel_timeout(eapol_sm_reauth, &eapol_test, NULL);
1180
1181 if (eapol_test_compare_pmk(&eapol_test) == 0 ||
1182 eapol_test.no_mppe_keys)
1183 ret = 0;
1184 if (eapol_test.auth_timed_out)
1185 ret = -2;
1186 if (eapol_test.radius_access_reject_received)
1187 ret = -3;
1188
1189 if (save_config)
1190 wpa_config_write(conf, wpa_s.conf);
1191
1192 test_eapol_clean(&eapol_test, &wpa_s);
1193
1194 eap_peer_unregister_methods();
1195
1196 eloop_destroy();
1197
1198 printf("MPPE keys OK: %d mismatch: %d\n",
1199 eapol_test.num_mppe_ok, eapol_test.num_mppe_mismatch);
1200 if (eapol_test.num_mppe_mismatch)
1201 ret = -4;
1202 if (ret)
1203 printf("FAILURE\n");
1204 else
1205 printf("SUCCESS\n");
1206
1207 os_program_deinit();
1208
1209 return ret;
1210 }
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