preauth_test.c revision 214734 
1/*
2 * WPA Supplicant - test code for pre-authentication
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 "eloop.h"
25#include "rsn_supp/wpa.h"
26#include "eap_peer/eap.h"
27#include "wpa_supplicant_i.h"
28#include "l2_packet/l2_packet.h"
29#include "ctrl_iface.h"
30#include "pcsc_funcs.h"
31#include "rsn_supp/preauth.h"
32#include "rsn_supp/pmksa_cache.h"
33#include "drivers/driver.h"
34
35
36extern int wpa_debug_level;
37extern int wpa_debug_show_keys;
38
39struct wpa_driver_ops *wpa_drivers[] = { NULL };
40
41
42struct preauth_test_data {
43	int auth_timed_out;
44};
45
46
47static void _wpa_supplicant_disassociate(void *wpa_s, int reason_code)
48{
49	wpa_supplicant_disassociate(wpa_s, reason_code);
50}
51
52
53static void _wpa_supplicant_deauthenticate(void *wpa_s, int reason_code)
54{
55	wpa_supplicant_deauthenticate(wpa_s, reason_code);
56}
57
58
59static u8 * wpa_alloc_eapol(const struct wpa_supplicant *wpa_s, u8 type,
60			    const void *data, u16 data_len,
61			    size_t *msg_len, void **data_pos)
62{
63	struct ieee802_1x_hdr *hdr;
64
65	*msg_len = sizeof(*hdr) + data_len;
66	hdr = os_malloc(*msg_len);
67	if (hdr == NULL)
68		return NULL;
69
70	hdr->version = wpa_s->conf->eapol_version;
71	hdr->type = type;
72	hdr->length = htons(data_len);
73
74	if (data)
75		os_memcpy(hdr + 1, data, data_len);
76	else
77		os_memset(hdr + 1, 0, data_len);
78
79	if (data_pos)
80		*data_pos = hdr + 1;
81
82	return (u8 *) hdr;
83}
84
85
86static u8 * _wpa_alloc_eapol(void *wpa_s, u8 type,
87			     const void *data, u16 data_len,
88			     size_t *msg_len, void **data_pos)
89{
90	return wpa_alloc_eapol(wpa_s, type, data, data_len, msg_len, data_pos);
91}
92
93
94static void _wpa_supplicant_set_state(void *ctx, enum wpa_states state)
95{
96	struct wpa_supplicant *wpa_s = ctx;
97	wpa_s->wpa_state = state;
98}
99
100
101static enum wpa_states _wpa_supplicant_get_state(void *ctx)
102{
103	struct wpa_supplicant *wpa_s = ctx;
104	return wpa_s->wpa_state;
105}
106
107
108static int wpa_ether_send(void *wpa_s, const u8 *dest, u16 proto,
109			  const u8 *buf, size_t len)
110{
111	printf("%s - not implemented\n", __func__);
112	return -1;
113}
114
115
116static void * wpa_supplicant_get_network_ctx(void *wpa_s)
117{
118	return wpa_supplicant_get_ssid(wpa_s);
119}
120
121
122static void _wpa_supplicant_cancel_auth_timeout(void *wpa_s)
123{
124	wpa_supplicant_cancel_auth_timeout(wpa_s);
125}
126
127
128static int wpa_supplicant_get_beacon_ie(void *wpa_s)
129{
130	printf("%s - not implemented\n", __func__);
131	return -1;
132}
133
134
135static int wpa_supplicant_get_bssid(void *wpa_s, u8 *bssid)
136{
137	printf("%s - not implemented\n", __func__);
138	return -1;
139}
140
141
142static int wpa_supplicant_set_key(void *wpa_s, enum wpa_alg alg,
143				  const u8 *addr, int key_idx, int set_tx,
144				  const u8 *seq, size_t seq_len,
145				  const u8 *key, size_t key_len)
146{
147	printf("%s - not implemented\n", __func__);
148	return -1;
149}
150
151
152static int wpa_supplicant_mlme_setprotection(void *wpa_s, const u8 *addr,
153					     int protection_type,
154					     int key_type)
155{
156	printf("%s - not implemented\n", __func__);
157	return -1;
158}
159
160
161static int wpa_supplicant_add_pmkid(void *wpa_s,
162				    const u8 *bssid, const u8 *pmkid)
163{
164	printf("%s - not implemented\n", __func__);
165	return -1;
166}
167
168
169static int wpa_supplicant_remove_pmkid(void *wpa_s,
170				       const u8 *bssid, const u8 *pmkid)
171{
172	printf("%s - not implemented\n", __func__);
173	return -1;
174}
175
176
177static void wpa_supplicant_set_config_blob(void *ctx,
178					   struct wpa_config_blob *blob)
179{
180	struct wpa_supplicant *wpa_s = ctx;
181	wpa_config_set_blob(wpa_s->conf, blob);
182}
183
184
185static const struct wpa_config_blob *
186wpa_supplicant_get_config_blob(void *ctx, const char *name)
187{
188	struct wpa_supplicant *wpa_s = ctx;
189	return wpa_config_get_blob(wpa_s->conf, name);
190}
191
192
193static void test_eapol_clean(struct wpa_supplicant *wpa_s)
194{
195	rsn_preauth_deinit(wpa_s->wpa);
196	pmksa_candidate_free(wpa_s->wpa);
197	wpa_sm_deinit(wpa_s->wpa);
198	scard_deinit(wpa_s->scard);
199	if (wpa_s->ctrl_iface) {
200		wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
201		wpa_s->ctrl_iface = NULL;
202	}
203	wpa_config_free(wpa_s->conf);
204}
205
206
207static void eapol_test_timeout(void *eloop_ctx, void *timeout_ctx)
208{
209	struct preauth_test_data *p = eloop_ctx;
210	printf("EAPOL test timed out\n");
211	p->auth_timed_out = 1;
212	eloop_terminate();
213}
214
215
216static void eapol_test_poll(void *eloop_ctx, void *timeout_ctx)
217{
218	struct wpa_supplicant *wpa_s = eloop_ctx;
219	if (!rsn_preauth_in_progress(wpa_s->wpa))
220		eloop_terminate();
221	else {
222		eloop_register_timeout(0, 100000, eapol_test_poll, eloop_ctx,
223				       timeout_ctx);
224	}
225}
226
227
228static struct wpa_driver_ops dummy_driver;
229
230
231static void wpa_init_conf(struct wpa_supplicant *wpa_s, const char *ifname)
232{
233	struct l2_packet_data *l2;
234	struct wpa_sm_ctx *ctx;
235
236	os_memset(&dummy_driver, 0, sizeof(dummy_driver));
237	wpa_s->driver = &dummy_driver;
238
239	ctx = os_zalloc(sizeof(*ctx));
240	assert(ctx != NULL);
241
242	ctx->ctx = wpa_s;
243	ctx->msg_ctx = wpa_s;
244	ctx->set_state = _wpa_supplicant_set_state;
245	ctx->get_state = _wpa_supplicant_get_state;
246	ctx->deauthenticate = _wpa_supplicant_deauthenticate;
247	ctx->disassociate = _wpa_supplicant_disassociate;
248	ctx->set_key = wpa_supplicant_set_key;
249	ctx->get_network_ctx = wpa_supplicant_get_network_ctx;
250	ctx->get_bssid = wpa_supplicant_get_bssid;
251	ctx->ether_send = wpa_ether_send;
252	ctx->get_beacon_ie = wpa_supplicant_get_beacon_ie;
253	ctx->alloc_eapol = _wpa_alloc_eapol;
254	ctx->cancel_auth_timeout = _wpa_supplicant_cancel_auth_timeout;
255	ctx->add_pmkid = wpa_supplicant_add_pmkid;
256	ctx->remove_pmkid = wpa_supplicant_remove_pmkid;
257	ctx->set_config_blob = wpa_supplicant_set_config_blob;
258	ctx->get_config_blob = wpa_supplicant_get_config_blob;
259	ctx->mlme_setprotection = wpa_supplicant_mlme_setprotection;
260
261	wpa_s->wpa = wpa_sm_init(ctx);
262	assert(wpa_s->wpa != NULL);
263	wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, WPA_PROTO_RSN);
264
265	os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname));
266	wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname, NULL);
267
268	l2 = l2_packet_init(wpa_s->ifname, NULL, ETH_P_RSN_PREAUTH, NULL,
269			    NULL, 0);
270	assert(l2 != NULL);
271	if (l2_packet_get_own_addr(l2, wpa_s->own_addr)) {
272		wpa_printf(MSG_WARNING, "Failed to get own L2 address\n");
273		exit(-1);
274	}
275	l2_packet_deinit(l2);
276	wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr);
277}
278
279
280static void eapol_test_terminate(int sig, void *signal_ctx)
281{
282	struct wpa_supplicant *wpa_s = signal_ctx;
283	wpa_msg(wpa_s, MSG_INFO, "Signal %d received - terminating", sig);
284	eloop_terminate();
285}
286
287
288int main(int argc, char *argv[])
289{
290	struct wpa_supplicant wpa_s;
291	int ret = 1;
292	u8 bssid[ETH_ALEN];
293	struct preauth_test_data preauth_test;
294
295	if (os_program_init())
296		return -1;
297
298	os_memset(&preauth_test, 0, sizeof(preauth_test));
299
300	wpa_debug_level = 0;
301	wpa_debug_show_keys = 1;
302
303	if (argc != 4) {
304		printf("usage: preauth_test <conf> <target MAC address> "
305		       "<ifname>\n");
306		return -1;
307	}
308
309	if (hwaddr_aton(argv[2], bssid)) {
310		printf("Failed to parse target address '%s'.\n", argv[2]);
311		return -1;
312	}
313
314	if (eap_register_methods()) {
315		wpa_printf(MSG_ERROR, "Failed to register EAP methods");
316		return -1;
317	}
318
319	if (eloop_init()) {
320		wpa_printf(MSG_ERROR, "Failed to initialize event loop");
321		return -1;
322	}
323
324	os_memset(&wpa_s, 0, sizeof(wpa_s));
325	wpa_s.conf = wpa_config_read(argv[1]);
326	if (wpa_s.conf == NULL) {
327		printf("Failed to parse configuration file '%s'.\n", argv[1]);
328		return -1;
329	}
330	if (wpa_s.conf->ssid == NULL) {
331		printf("No networks defined.\n");
332		return -1;
333	}
334
335	wpa_init_conf(&wpa_s, argv[3]);
336	wpa_s.ctrl_iface = wpa_supplicant_ctrl_iface_init(&wpa_s);
337	if (wpa_s.ctrl_iface == NULL) {
338		printf("Failed to initialize control interface '%s'.\n"
339		       "You may have another preauth_test process already "
340		       "running or the file was\n"
341		       "left by an unclean termination of preauth_test in "
342		       "which case you will need\n"
343		       "to manually remove this file before starting "
344		       "preauth_test again.\n",
345		       wpa_s.conf->ctrl_interface);
346		return -1;
347	}
348	if (wpa_supplicant_scard_init(&wpa_s, wpa_s.conf->ssid))
349		return -1;
350
351	if (rsn_preauth_init(wpa_s.wpa, bssid, &wpa_s.conf->ssid->eap))
352		return -1;
353
354	eloop_register_timeout(30, 0, eapol_test_timeout, &preauth_test, NULL);
355	eloop_register_timeout(0, 100000, eapol_test_poll, &wpa_s, NULL);
356	eloop_register_signal_terminate(eapol_test_terminate, &wpa_s);
357	eloop_register_signal_reconfig(eapol_test_terminate, &wpa_s);
358	eloop_run();
359
360	if (preauth_test.auth_timed_out)
361		ret = -2;
362	else {
363		ret = pmksa_cache_set_current(wpa_s.wpa, NULL, bssid, NULL, 0)
364			? 0 : -3;
365	}
366
367	test_eapol_clean(&wpa_s);
368
369	eap_peer_unregister_methods();
370
371	eloop_destroy();
372
373	os_program_deinit();
374
375	return ret;
376}
377