test_wpa.c revision a54fa5fb807eaeff45464139b5a7759f060cec68 
1/*
2 * Test program for combined WPA authenticator/supplicant
3 * Copyright (c) 2006-2007, 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
9#include "includes.h"
10
11#include "common.h"
12#include "eloop.h"
13#include "common/ieee802_11_defs.h"
14#include "../config.h"
15#include "rsn_supp/wpa.h"
16#include "rsn_supp/wpa_ie.h"
17#include "ap/wpa_auth.h"
18
19
20extern int wpa_debug_level;
21extern int wpa_debug_show_keys;
22
23
24struct wpa {
25	u8 auth_addr[ETH_ALEN];
26	u8 supp_addr[ETH_ALEN];
27	u8 psk[PMK_LEN];
28
29	/* from authenticator */
30	u8 auth_eapol_dst[ETH_ALEN];
31	u8 *auth_eapol;
32	size_t auth_eapol_len;
33
34	/* from supplicant */
35	u8 *supp_eapol;
36	size_t supp_eapol_len;
37
38	struct wpa_sm *supp;
39	struct wpa_authenticator *auth_group;
40	struct wpa_state_machine *auth;
41
42	struct wpa_ssid ssid;
43	u8 supp_ie[80];
44	size_t supp_ie_len;
45};
46
47
48static int supp_get_bssid(void *ctx, u8 *bssid)
49{
50	struct wpa *wpa = ctx;
51	wpa_printf(MSG_DEBUG, "SUPP: %s", __func__);
52	os_memcpy(bssid, wpa->auth_addr, ETH_ALEN);
53	return 0;
54}
55
56
57static void supp_set_state(void *ctx, enum wpa_states state)
58{
59	wpa_printf(MSG_DEBUG, "SUPP: %s(state=%d)", __func__, state);
60}
61
62
63static void auth_eapol_rx(void *eloop_data, void *user_ctx)
64{
65	struct wpa *wpa = eloop_data;
66
67	wpa_printf(MSG_DEBUG, "AUTH: RX EAPOL frame");
68	wpa_receive(wpa->auth_group, wpa->auth, wpa->supp_eapol,
69		    wpa->supp_eapol_len);
70}
71
72
73static int supp_ether_send(void *ctx, const u8 *dest, u16 proto, const u8 *buf,
74			   size_t len)
75{
76	struct wpa *wpa = ctx;
77
78	wpa_printf(MSG_DEBUG, "SUPP: %s(dest=" MACSTR " proto=0x%04x "
79		   "len=%lu)",
80		   __func__, MAC2STR(dest), proto, (unsigned long) len);
81
82	os_free(wpa->supp_eapol);
83	wpa->supp_eapol = os_malloc(len);
84	if (wpa->supp_eapol == NULL)
85		return -1;
86	os_memcpy(wpa->supp_eapol, buf, len);
87	wpa->supp_eapol_len = len;
88	eloop_register_timeout(0, 0, auth_eapol_rx, wpa, NULL);
89
90	return 0;
91}
92
93
94static u8 * supp_alloc_eapol(void *ctx, u8 type, const void *data,
95			     u16 data_len, size_t *msg_len, void **data_pos)
96{
97	struct ieee802_1x_hdr *hdr;
98
99	wpa_printf(MSG_DEBUG, "SUPP: %s(type=%d data_len=%d)",
100		   __func__, type, data_len);
101
102	*msg_len = sizeof(*hdr) + data_len;
103	hdr = os_malloc(*msg_len);
104	if (hdr == NULL)
105		return NULL;
106
107	hdr->version = 2;
108	hdr->type = type;
109	hdr->length = host_to_be16(data_len);
110
111	if (data)
112		os_memcpy(hdr + 1, data, data_len);
113	else
114		os_memset(hdr + 1, 0, data_len);
115
116	if (data_pos)
117		*data_pos = hdr + 1;
118
119	return (u8 *) hdr;
120}
121
122
123static int supp_get_beacon_ie(void *ctx)
124{
125	struct wpa *wpa = ctx;
126	const u8 *ie;
127	size_t ielen;
128
129	wpa_printf(MSG_DEBUG, "SUPP: %s", __func__);
130
131	ie = wpa_auth_get_wpa_ie(wpa->auth_group, &ielen);
132	if (ie == NULL || ielen < 1)
133		return -1;
134	if (ie[0] == WLAN_EID_RSN)
135		return wpa_sm_set_ap_rsn_ie(wpa->supp, ie, 2 + ie[1]);
136	return wpa_sm_set_ap_wpa_ie(wpa->supp, ie, 2 + ie[1]);
137}
138
139
140static int supp_set_key(void *ctx, enum wpa_alg alg,
141			const u8 *addr, int key_idx, int set_tx,
142			const u8 *seq, size_t seq_len,
143			const u8 *key, size_t key_len)
144{
145	wpa_printf(MSG_DEBUG, "SUPP: %s(alg=%d addr=" MACSTR " key_idx=%d "
146		   "set_tx=%d)",
147		   __func__, alg, MAC2STR(addr), key_idx, set_tx);
148	wpa_hexdump(MSG_DEBUG, "SUPP: set_key - seq", seq, seq_len);
149	wpa_hexdump(MSG_DEBUG, "SUPP: set_key - key", key, key_len);
150	return 0;
151}
152
153
154static int supp_mlme_setprotection(void *ctx, const u8 *addr,
155				   int protection_type, int key_type)
156{
157	wpa_printf(MSG_DEBUG, "SUPP: %s(addr=" MACSTR " protection_type=%d "
158		   "key_type=%d)",
159		   __func__, MAC2STR(addr), protection_type, key_type);
160	return 0;
161}
162
163
164static void supp_cancel_auth_timeout(void *ctx)
165{
166	wpa_printf(MSG_DEBUG, "SUPP: %s", __func__);
167}
168
169
170static int supp_init(struct wpa *wpa)
171{
172	struct wpa_sm_ctx *ctx = os_zalloc(sizeof(*ctx));
173	if (ctx == NULL)
174		return -1;
175
176	ctx->ctx = wpa;
177	ctx->msg_ctx = wpa;
178	ctx->set_state = supp_set_state;
179	ctx->get_bssid = supp_get_bssid;
180	ctx->ether_send = supp_ether_send;
181	ctx->get_beacon_ie = supp_get_beacon_ie;
182	ctx->alloc_eapol = supp_alloc_eapol;
183	ctx->set_key = supp_set_key;
184	ctx->mlme_setprotection = supp_mlme_setprotection;
185	ctx->cancel_auth_timeout = supp_cancel_auth_timeout;
186	wpa->supp = wpa_sm_init(ctx);
187	if (wpa->supp == NULL) {
188		wpa_printf(MSG_DEBUG, "SUPP: wpa_sm_init() failed");
189		return -1;
190	}
191
192	wpa_sm_set_own_addr(wpa->supp, wpa->supp_addr);
193	wpa_sm_set_param(wpa->supp, WPA_PARAM_RSN_ENABLED, 1);
194	wpa_sm_set_param(wpa->supp, WPA_PARAM_PROTO, WPA_PROTO_RSN);
195	wpa_sm_set_param(wpa->supp, WPA_PARAM_PAIRWISE, WPA_CIPHER_CCMP);
196	wpa_sm_set_param(wpa->supp, WPA_PARAM_GROUP, WPA_CIPHER_CCMP);
197	wpa_sm_set_param(wpa->supp, WPA_PARAM_KEY_MGMT, WPA_KEY_MGMT_PSK);
198	wpa_sm_set_pmk(wpa->supp, wpa->psk, PMK_LEN);
199
200	wpa->supp_ie_len = sizeof(wpa->supp_ie);
201	if (wpa_sm_set_assoc_wpa_ie_default(wpa->supp, wpa->supp_ie,
202					    &wpa->supp_ie_len) < 0) {
203		wpa_printf(MSG_DEBUG, "SUPP: wpa_sm_set_assoc_wpa_ie_default()"
204			   " failed");
205		return -1;
206	}
207
208	wpa_sm_notify_assoc(wpa->supp, wpa->auth_addr);
209
210	return 0;
211}
212
213
214static void auth_logger(void *ctx, const u8 *addr, logger_level level,
215			const char *txt)
216{
217	if (addr)
218		wpa_printf(MSG_DEBUG, "AUTH: " MACSTR " - %s",
219			   MAC2STR(addr), txt);
220	else
221		wpa_printf(MSG_DEBUG, "AUTH: %s", txt);
222}
223
224
225static void supp_eapol_rx(void *eloop_data, void *user_ctx)
226{
227	struct wpa *wpa = eloop_data;
228
229	wpa_printf(MSG_DEBUG, "SUPP: RX EAPOL frame");
230	wpa_sm_rx_eapol(wpa->supp, wpa->auth_addr, wpa->auth_eapol,
231			wpa->auth_eapol_len);
232}
233
234
235static int auth_send_eapol(void *ctx, const u8 *addr, const u8 *data,
236			   size_t data_len, int encrypt)
237{
238	struct wpa *wpa = ctx;
239
240	wpa_printf(MSG_DEBUG, "AUTH: %s(addr=" MACSTR " data_len=%lu "
241		   "encrypt=%d)",
242		   __func__, MAC2STR(addr), (unsigned long) data_len, encrypt);
243
244	os_free(wpa->auth_eapol);
245	wpa->auth_eapol = os_malloc(data_len);
246	if (wpa->auth_eapol == NULL)
247		return -1;
248	os_memcpy(wpa->auth_eapol_dst, addr, ETH_ALEN);
249	os_memcpy(wpa->auth_eapol, data, data_len);
250	wpa->auth_eapol_len = data_len;
251	eloop_register_timeout(0, 0, supp_eapol_rx, wpa, NULL);
252
253	return 0;
254}
255
256
257static const u8 * auth_get_psk(void *ctx, const u8 *addr, const u8 *prev_psk)
258{
259	struct wpa *wpa = ctx;
260	wpa_printf(MSG_DEBUG, "AUTH: %s (addr=" MACSTR " prev_psk=%p)",
261		   __func__, MAC2STR(addr), prev_psk);
262	if (prev_psk)
263		return NULL;
264	return wpa->psk;
265}
266
267
268static int auth_init_group(struct wpa *wpa)
269{
270	struct wpa_auth_config conf;
271	struct wpa_auth_callbacks cb;
272
273	wpa_printf(MSG_DEBUG, "AUTH: Initializing group state machine");
274
275	os_memset(&conf, 0, sizeof(conf));
276	conf.wpa = 2;
277	conf.wpa_key_mgmt = WPA_KEY_MGMT_PSK;
278	conf.wpa_pairwise = WPA_CIPHER_CCMP;
279	conf.rsn_pairwise = WPA_CIPHER_CCMP;
280	conf.wpa_group = WPA_CIPHER_CCMP;
281	conf.eapol_version = 2;
282
283	os_memset(&cb, 0, sizeof(cb));
284	cb.ctx = wpa;
285	cb.logger = auth_logger;
286	cb.send_eapol = auth_send_eapol;
287	cb.get_psk = auth_get_psk;
288
289	wpa->auth_group = wpa_init(wpa->auth_addr, &conf, &cb);
290	if (wpa->auth_group == NULL) {
291		wpa_printf(MSG_DEBUG, "AUTH: wpa_init() failed");
292		return -1;
293	}
294
295	return 0;
296}
297
298
299static int auth_init(struct wpa *wpa)
300{
301	wpa->auth = wpa_auth_sta_init(wpa->auth_group, wpa->supp_addr);
302	if (wpa->auth == NULL) {
303		wpa_printf(MSG_DEBUG, "AUTH: wpa_auth_sta_init() failed");
304		return -1;
305	}
306
307	if (wpa_validate_wpa_ie(wpa->auth_group, wpa->auth, wpa->supp_ie,
308				wpa->supp_ie_len, NULL, 0) != WPA_IE_OK) {
309		wpa_printf(MSG_DEBUG, "AUTH: wpa_validate_wpa_ie() failed");
310		return -1;
311	}
312
313	wpa_auth_sm_event(wpa->auth, WPA_ASSOC);
314
315	wpa_auth_sta_associated(wpa->auth_group, wpa->auth);
316
317	return 0;
318}
319
320
321static void deinit(struct wpa *wpa)
322{
323	wpa_auth_sta_deinit(wpa->auth);
324	wpa_sm_deinit(wpa->supp);
325	wpa_deinit(wpa->auth_group);
326	os_free(wpa->auth_eapol);
327	wpa->auth_eapol = NULL;
328	os_free(wpa->supp_eapol);
329	wpa->supp_eapol = NULL;
330}
331
332
333int main(int argc, char *argv[])
334{
335	struct wpa wpa;
336
337	if (os_program_init())
338		return -1;
339
340	os_memset(&wpa, 0, sizeof(wpa));
341	os_memset(wpa.auth_addr, 0x12, ETH_ALEN);
342	os_memset(wpa.supp_addr, 0x32, ETH_ALEN);
343	os_memset(wpa.psk, 0x44, PMK_LEN);
344
345	wpa_debug_level = 0;
346	wpa_debug_show_keys = 1;
347
348	if (eloop_init()) {
349		wpa_printf(MSG_ERROR, "Failed to initialize event loop");
350		return -1;
351	}
352
353	if (auth_init_group(&wpa) < 0)
354		return -1;
355
356	if (supp_init(&wpa) < 0)
357		return -1;
358
359	if (auth_init(&wpa) < 0)
360		return -1;
361
362	wpa_printf(MSG_DEBUG, "Starting eloop");
363	eloop_run();
364	wpa_printf(MSG_DEBUG, "eloop done");
365
366	deinit(&wpa);
367
368	eloop_destroy();
369
370	os_program_deinit();
371
372	return 0;
373}
374