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EAP: Increase the maximum number of message exchanges
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1/*
2 * WPA Supplicant - test code for pre-authentication
3 * Copyright (c) 2003-2007, Jouni Malinen <j@w1.fi>
4 *
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5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
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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"
3acb5005 19#include "rsn_supp/wpa.h"
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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"
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25#include "rsn_supp/preauth.h"
26#include "rsn_supp/pmksa_cache.h"
c5121837 27#include "drivers/driver.h"
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28
29
8b423edb 30const struct wpa_driver_ops *const wpa_drivers[] = { NULL };
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31
32
33struct preauth_test_data {
34 int auth_timed_out;
35};
36
37
4be17ffb 38static void _wpa_supplicant_deauthenticate(void *wpa_s, u16 reason_code)
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39{
40 wpa_supplicant_deauthenticate(wpa_s, reason_code);
41}
42
43
44static u8 * wpa_alloc_eapol(const struct wpa_supplicant *wpa_s, u8 type,
45 const void *data, u16 data_len,
46 size_t *msg_len, void **data_pos)
47{
48 struct ieee802_1x_hdr *hdr;
49
50 *msg_len = sizeof(*hdr) + data_len;
51 hdr = os_malloc(*msg_len);
52 if (hdr == NULL)
53 return NULL;
54
55 hdr->version = wpa_s->conf->eapol_version;
56 hdr->type = type;
57 hdr->length = htons(data_len);
58
59 if (data)
60 os_memcpy(hdr + 1, data, data_len);
61 else
62 os_memset(hdr + 1, 0, data_len);
63
64 if (data_pos)
65 *data_pos = hdr + 1;
66
67 return (u8 *) hdr;
68}
69
70
71static u8 * _wpa_alloc_eapol(void *wpa_s, u8 type,
72 const void *data, u16 data_len,
73 size_t *msg_len, void **data_pos)
74{
75 return wpa_alloc_eapol(wpa_s, type, data, data_len, msg_len, data_pos);
76}
77
78
71934751 79static void _wpa_supplicant_set_state(void *ctx, enum wpa_states state)
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80{
81 struct wpa_supplicant *wpa_s = ctx;
82 wpa_s->wpa_state = state;
83}
84
85
71934751 86static enum wpa_states _wpa_supplicant_get_state(void *ctx)
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87{
88 struct wpa_supplicant *wpa_s = ctx;
89 return wpa_s->wpa_state;
90}
91
92
93static int wpa_ether_send(void *wpa_s, const u8 *dest, u16 proto,
94 const u8 *buf, size_t len)
95{
96 printf("%s - not implemented\n", __func__);
97 return -1;
98}
99
100
101static void * wpa_supplicant_get_network_ctx(void *wpa_s)
102{
103 return wpa_supplicant_get_ssid(wpa_s);
104}
105
106
107static void _wpa_supplicant_cancel_auth_timeout(void *wpa_s)
108{
109 wpa_supplicant_cancel_auth_timeout(wpa_s);
110}
111
112
113static int wpa_supplicant_get_beacon_ie(void *wpa_s)
114{
115 printf("%s - not implemented\n", __func__);
116 return -1;
117}
118
119
120static int wpa_supplicant_get_bssid(void *wpa_s, u8 *bssid)
121{
122 printf("%s - not implemented\n", __func__);
123 return -1;
124}
125
126
71934751 127static int wpa_supplicant_set_key(void *wpa_s, enum wpa_alg alg,
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128 const u8 *addr, int key_idx, int set_tx,
129 const u8 *seq, size_t seq_len,
130 const u8 *key, size_t key_len)
131{
132 printf("%s - not implemented\n", __func__);
133 return -1;
134}
135
136
137static int wpa_supplicant_mlme_setprotection(void *wpa_s, const u8 *addr,
138 int protection_type,
139 int key_type)
140{
141 printf("%s - not implemented\n", __func__);
142 return -1;
143}
144
145
aaa9c60b 146static int wpa_supplicant_add_pmkid(void *wpa_s, void *network_ctx,
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147 const u8 *bssid, const u8 *pmkid,
148 const u8 *fils_cache_id,
149 const u8 *pmk, size_t pmk_len)
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150{
151 printf("%s - not implemented\n", __func__);
152 return -1;
153}
154
155
aaa9c60b 156static int wpa_supplicant_remove_pmkid(void *wpa_s, void *network_ctx,
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157 const u8 *bssid, const u8 *pmkid,
158 const u8 *fils_cache_id)
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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;
0f057fb2 231 ctx->msg_ctx = wpa_s;
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232 ctx->set_state = _wpa_supplicant_set_state;
233 ctx->get_state = _wpa_supplicant_get_state;
6fc6879b 234 ctx->deauthenticate = _wpa_supplicant_deauthenticate;
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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
0456ea16 267static void eapol_test_terminate(int sig, void *signal_ctx)
6fc6879b 268{
0456ea16 269 struct wpa_supplicant *wpa_s = signal_ctx;
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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
12760815 301 if (eap_register_methods()) {
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302 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
303 return -1;
304 }
305
0456ea16 306 if (eloop_init()) {
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307 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
308 return -1;
309 }
310
311 os_memset(&wpa_s, 0, sizeof(wpa_s));
e6304cad 312 wpa_s.conf = wpa_config_read(argv[1], NULL);
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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);
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343 eloop_register_signal_terminate(eapol_test_terminate, &wpa_s);
344 eloop_register_signal_reconfig(eapol_test_terminate, &wpa_s);
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345 eloop_run();
346
347 if (preauth_test.auth_timed_out)
348 ret = -2;
349 else {
869af307 350 ret = pmksa_cache_set_current(wpa_s.wpa, NULL, bssid, NULL, 0,
852b2f27 351 NULL, 0) ? 0 : -3;
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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}