preauth_test.c revision 252726 
1/*
2 * WPA Supplicant - test code for pre-authentication
3 * Copyright (c) 2003-2007, 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 "eloop.h"
19#include "rsn_supp/wpa.h"
20#include "eap_peer/eap.h"
21#include "wpa_supplicant_i.h"
22#include "l2_packet/l2_packet.h"
23#include "ctrl_iface.h"
24#include "pcsc_funcs.h"
25#include "rsn_supp/preauth.h"
26#include "rsn_supp/pmksa_cache.h"
27#include "drivers/driver.h"
28
29
30extern int wpa_debug_level;
31extern int wpa_debug_show_keys;
32
33struct wpa_driver_ops *wpa_drivers[] = { NULL };
34
35
36struct preauth_test_data {
37	int auth_timed_out;
38};
39
40
41static void _wpa_supplicant_deauthenticate(void *wpa_s, int reason_code)
42{
43	wpa_supplicant_deauthenticate(wpa_s, reason_code);
44}
45
46
47static u8 * wpa_alloc_eapol(const struct wpa_supplicant *wpa_s, u8 type,
48			    const void *data, u16 data_len,
49			    size_t *msg_len, void **data_pos)
50{
51	struct ieee802_1x_hdr *hdr;
52
53	*msg_len = sizeof(*hdr) + data_len;
54	hdr = os_malloc(*msg_len);
55	if (hdr == NULL)
56		return NULL;
57
58	hdr->version = wpa_s->conf->eapol_version;
59	hdr->type = type;
60	hdr->length = htons(data_len);
61
62	if (data)
63		os_memcpy(hdr + 1, data, data_len);
64	else
65		os_memset(hdr + 1, 0, data_len);
66
67	if (data_pos)
68		*data_pos = hdr + 1;
69
70	return (u8 *) hdr;
71}
72
73
74static u8 * _wpa_alloc_eapol(void *wpa_s, u8 type,
75			     const void *data, u16 data_len,
76			     size_t *msg_len, void **data_pos)
77{
78	return wpa_alloc_eapol(wpa_s, type, data, data_len, msg_len, data_pos);
79}
80
81
82static void _wpa_supplicant_set_state(void *ctx, enum wpa_states state)
83{
84	struct wpa_supplicant *wpa_s = ctx;
85	wpa_s->wpa_state = state;
86}
87
88
89static enum wpa_states _wpa_supplicant_get_state(void *ctx)
90{
91	struct wpa_supplicant *wpa_s = ctx;
92	return wpa_s->wpa_state;
93}
94
95
96static int wpa_ether_send(void *wpa_s, const u8 *dest, u16 proto,
97			  const u8 *buf, size_t len)
98{
99	printf("%s - not implemented\n", __func__);
100	return -1;
101}
102
103
104static void * wpa_supplicant_get_network_ctx(void *wpa_s)
105{
106	return wpa_supplicant_get_ssid(wpa_s);
107}
108
109
110static void _wpa_supplicant_cancel_auth_timeout(void *wpa_s)
111{
112	wpa_supplicant_cancel_auth_timeout(wpa_s);
113}
114
115
116static int wpa_supplicant_get_beacon_ie(void *wpa_s)
117{
118	printf("%s - not implemented\n", __func__);
119	return -1;
120}
121
122
123static int wpa_supplicant_get_bssid(void *wpa_s, u8 *bssid)
124{
125	printf("%s - not implemented\n", __func__);
126	return -1;
127}
128
129
130static int wpa_supplicant_set_key(void *wpa_s, enum wpa_alg alg,
131				  const u8 *addr, int key_idx, int set_tx,
132				  const u8 *seq, size_t seq_len,
133				  const u8 *key, size_t key_len)
134{
135	printf("%s - not implemented\n", __func__);
136	return -1;
137}
138
139
140static int wpa_supplicant_mlme_setprotection(void *wpa_s, const u8 *addr,
141					     int protection_type,
142					     int key_type)
143{
144	printf("%s - not implemented\n", __func__);
145	return -1;
146}
147
148
149static int wpa_supplicant_add_pmkid(void *wpa_s,
150				    const u8 *bssid, const u8 *pmkid)
151{
152	printf("%s - not implemented\n", __func__);
153	return -1;
154}
155
156
157static int wpa_supplicant_remove_pmkid(void *wpa_s,
158				       const u8 *bssid, const u8 *pmkid)
159{
160	printf("%s - not implemented\n", __func__);
161	return -1;
162}
163
164
165static void wpa_supplicant_set_config_blob(void *ctx,
166					   struct wpa_config_blob *blob)
167{
168	struct wpa_supplicant *wpa_s = ctx;
169	wpa_config_set_blob(wpa_s->conf, blob);
170}
171
172
173static const struct wpa_config_blob *
174wpa_supplicant_get_config_blob(void *ctx, const char *name)
175{
176	struct wpa_supplicant *wpa_s = ctx;
177	return wpa_config_get_blob(wpa_s->conf, name);
178}
179
180
181static void test_eapol_clean(struct wpa_supplicant *wpa_s)
182{
183	rsn_preauth_deinit(wpa_s->wpa);
184	pmksa_candidate_free(wpa_s->wpa);
185	wpa_sm_deinit(wpa_s->wpa);
186	scard_deinit(wpa_s->scard);
187	if (wpa_s->ctrl_iface) {
188		wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
189		wpa_s->ctrl_iface = NULL;
190	}
191	wpa_config_free(wpa_s->conf);
192}
193
194
195static void eapol_test_timeout(void *eloop_ctx, void *timeout_ctx)
196{
197	struct preauth_test_data *p = eloop_ctx;
198	printf("EAPOL test timed out\n");
199	p->auth_timed_out = 1;
200	eloop_terminate();
201}
202
203
204static void eapol_test_poll(void *eloop_ctx, void *timeout_ctx)
205{
206	struct wpa_supplicant *wpa_s = eloop_ctx;
207	if (!rsn_preauth_in_progress(wpa_s->wpa))
208		eloop_terminate();
209	else {
210		eloop_register_timeout(0, 100000, eapol_test_poll, eloop_ctx,
211				       timeout_ctx);
212	}
213}
214
215
216static struct wpa_driver_ops dummy_driver;
217
218
219static void wpa_init_conf(struct wpa_supplicant *wpa_s, const char *ifname)
220{
221	struct l2_packet_data *l2;
222	struct wpa_sm_ctx *ctx;
223
224	os_memset(&dummy_driver, 0, sizeof(dummy_driver));
225	wpa_s->driver = &dummy_driver;
226
227	ctx = os_zalloc(sizeof(*ctx));
228	assert(ctx != NULL);
229
230	ctx->ctx = wpa_s;
231	ctx->msg_ctx = wpa_s;
232	ctx->set_state = _wpa_supplicant_set_state;
233	ctx->get_state = _wpa_supplicant_get_state;
234	ctx->deauthenticate = _wpa_supplicant_deauthenticate;
235	ctx->set_key = wpa_supplicant_set_key;
236	ctx->get_network_ctx = wpa_supplicant_get_network_ctx;
237	ctx->get_bssid = wpa_supplicant_get_bssid;
238	ctx->ether_send = wpa_ether_send;
239	ctx->get_beacon_ie = wpa_supplicant_get_beacon_ie;
240	ctx->alloc_eapol = _wpa_alloc_eapol;
241	ctx->cancel_auth_timeout = _wpa_supplicant_cancel_auth_timeout;
242	ctx->add_pmkid = wpa_supplicant_add_pmkid;
243	ctx->remove_pmkid = wpa_supplicant_remove_pmkid;
244	ctx->set_config_blob = wpa_supplicant_set_config_blob;
245	ctx->get_config_blob = wpa_supplicant_get_config_blob;
246	ctx->mlme_setprotection = wpa_supplicant_mlme_setprotection;
247
248	wpa_s->wpa = wpa_sm_init(ctx);
249	assert(wpa_s->wpa != NULL);
250	wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, WPA_PROTO_RSN);
251
252	os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname));
253	wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname, NULL);
254
255	l2 = l2_packet_init(wpa_s->ifname, NULL, ETH_P_RSN_PREAUTH, NULL,
256			    NULL, 0);
257	assert(l2 != NULL);
258	if (l2_packet_get_own_addr(l2, wpa_s->own_addr)) {
259		wpa_printf(MSG_WARNING, "Failed to get own L2 address\n");
260		exit(-1);
261	}
262	l2_packet_deinit(l2);
263	wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr);
264}
265
266
267static void eapol_test_terminate(int sig, void *signal_ctx)
268{
269	struct wpa_supplicant *wpa_s = signal_ctx;
270	wpa_msg(wpa_s, MSG_INFO, "Signal %d received - terminating", sig);
271	eloop_terminate();
272}
273
274
275int main(int argc, char *argv[])
276{
277	struct wpa_supplicant wpa_s;
278	int ret = 1;
279	u8 bssid[ETH_ALEN];
280	struct preauth_test_data preauth_test;
281
282	if (os_program_init())
283		return -1;
284
285	os_memset(&preauth_test, 0, sizeof(preauth_test));
286
287	wpa_debug_level = 0;
288	wpa_debug_show_keys = 1;
289
290	if (argc != 4) {
291		printf("usage: preauth_test <conf> <target MAC address> "
292		       "<ifname>\n");
293		return -1;
294	}
295
296	if (hwaddr_aton(argv[2], bssid)) {
297		printf("Failed to parse target address '%s'.\n", argv[2]);
298		return -1;
299	}
300
301	if (eap_register_methods()) {
302		wpa_printf(MSG_ERROR, "Failed to register EAP methods");
303		return -1;
304	}
305
306	if (eloop_init()) {
307		wpa_printf(MSG_ERROR, "Failed to initialize event loop");
308		return -1;
309	}
310
311	os_memset(&wpa_s, 0, sizeof(wpa_s));
312	wpa_s.conf = wpa_config_read(argv[1]);
313	if (wpa_s.conf == NULL) {
314		printf("Failed to parse configuration file '%s'.\n", argv[1]);
315		return -1;
316	}
317	if (wpa_s.conf->ssid == NULL) {
318		printf("No networks defined.\n");
319		return -1;
320	}
321
322	wpa_init_conf(&wpa_s, argv[3]);
323	wpa_s.ctrl_iface = wpa_supplicant_ctrl_iface_init(&wpa_s);
324	if (wpa_s.ctrl_iface == NULL) {
325		printf("Failed to initialize control interface '%s'.\n"
326		       "You may have another preauth_test process already "
327		       "running or the file was\n"
328		       "left by an unclean termination of preauth_test in "
329		       "which case you will need\n"
330		       "to manually remove this file before starting "
331		       "preauth_test again.\n",
332		       wpa_s.conf->ctrl_interface);
333		return -1;
334	}
335	if (wpa_supplicant_scard_init(&wpa_s, wpa_s.conf->ssid))
336		return -1;
337
338	if (rsn_preauth_init(wpa_s.wpa, bssid, &wpa_s.conf->ssid->eap))
339		return -1;
340
341	eloop_register_timeout(30, 0, eapol_test_timeout, &preauth_test, NULL);
342	eloop_register_timeout(0, 100000, eapol_test_poll, &wpa_s, NULL);
343	eloop_register_signal_terminate(eapol_test_terminate, &wpa_s);
344	eloop_register_signal_reconfig(eapol_test_terminate, &wpa_s);
345	eloop_run();
346
347	if (preauth_test.auth_timed_out)
348		ret = -2;
349	else {
350		ret = pmksa_cache_set_current(wpa_s.wpa, NULL, bssid, NULL, 0)
351			? 0 : -3;
352	}
353
354	test_eapol_clean(&wpa_s);
355
356	eap_peer_unregister_methods();
357
358	eloop_destroy();
359
360	os_program_deinit();
361
362	return ret;
363}
364