1 /*
2 * Test program for combined WPA authenticator/supplicant
3 * Copyright (c) 2006-2007, 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
15 #include "includes.h"
16
17 #include "common.h"
18 #include "eloop.h"
19 #include "ieee802_11_defs.h"
20 #include "config.h"
21 #include "wpa.h"
22 #include "wpa_ie.h"
23 #include "../hostapd/wpa.h"
24
25
26 extern int wpa_debug_level;
27 extern int wpa_debug_show_keys;
28
29
30 struct wpa {
31 u8 auth_addr[ETH_ALEN];
32 u8 supp_addr[ETH_ALEN];
33 u8 psk[PMK_LEN];
34
35 /* from authenticator */
36 u8 auth_eapol_dst[ETH_ALEN];
37 u8 *auth_eapol;
38 size_t auth_eapol_len;
39
40 /* from supplicant */
41 u8 *supp_eapol;
42 size_t supp_eapol_len;
43
44 struct wpa_sm *supp;
45 struct wpa_authenticator *auth_group;
46 struct wpa_state_machine *auth;
47
48 struct wpa_ssid ssid;
49 u8 supp_ie[80];
50 size_t supp_ie_len;
51 };
52
53
supp_get_ssid(void * ctx)54 static struct wpa_ssid * supp_get_ssid(void *ctx)
55 {
56 struct wpa *wpa = ctx;
57 wpa_printf(MSG_DEBUG, "SUPP: %s", __func__);
58 return &wpa->ssid;
59 }
60
61
supp_get_bssid(void * ctx,u8 * bssid)62 static int supp_get_bssid(void *ctx, u8 *bssid)
63 {
64 struct wpa *wpa = ctx;
65 wpa_printf(MSG_DEBUG, "SUPP: %s", __func__);
66 os_memcpy(bssid, wpa->auth_addr, ETH_ALEN);
67 return 0;
68 }
69
70
supp_set_state(void * ctx,wpa_states state)71 static void supp_set_state(void *ctx, wpa_states state)
72 {
73 wpa_printf(MSG_DEBUG, "SUPP: %s(state=%d)", __func__, state);
74 }
75
76
auth_eapol_rx(void * eloop_data,void * user_ctx)77 static void auth_eapol_rx(void *eloop_data, void *user_ctx)
78 {
79 struct wpa *wpa = eloop_data;
80
81 wpa_printf(MSG_DEBUG, "AUTH: RX EAPOL frame");
82 wpa_receive(wpa->auth_group, wpa->auth, wpa->supp_eapol,
83 wpa->supp_eapol_len);
84 }
85
86
supp_ether_send(void * ctx,const u8 * dest,u16 proto,const u8 * buf,size_t len)87 static int supp_ether_send(void *ctx, const u8 *dest, u16 proto, const u8 *buf,
88 size_t len)
89 {
90 struct wpa *wpa = ctx;
91
92 wpa_printf(MSG_DEBUG, "SUPP: %s(dest=" MACSTR " proto=0x%04x "
93 "len=%lu)",
94 __func__, MAC2STR(dest), proto, (unsigned long) len);
95
96 os_free(wpa->supp_eapol);
97 wpa->supp_eapol = os_malloc(len);
98 if (wpa->supp_eapol == NULL)
99 return -1;
100 os_memcpy(wpa->supp_eapol, buf, len);
101 wpa->supp_eapol_len = len;
102 eloop_register_timeout(0, 0, auth_eapol_rx, wpa, NULL);
103
104 return 0;
105 }
106
107
supp_alloc_eapol(void * ctx,u8 type,const void * data,u16 data_len,size_t * msg_len,void ** data_pos)108 static u8 * supp_alloc_eapol(void *ctx, u8 type, const void *data,
109 u16 data_len, size_t *msg_len, void **data_pos)
110 {
111 struct ieee802_1x_hdr *hdr;
112
113 wpa_printf(MSG_DEBUG, "SUPP: %s(type=%d data_len=%d)",
114 __func__, type, data_len);
115
116 *msg_len = sizeof(*hdr) + data_len;
117 hdr = os_malloc(*msg_len);
118 if (hdr == NULL)
119 return NULL;
120
121 hdr->version = 2;
122 hdr->type = type;
123 hdr->length = host_to_be16(data_len);
124
125 if (data)
126 os_memcpy(hdr + 1, data, data_len);
127 else
128 os_memset(hdr + 1, 0, data_len);
129
130 if (data_pos)
131 *data_pos = hdr + 1;
132
133 return (u8 *) hdr;
134 }
135
136
supp_get_beacon_ie(void * ctx)137 static int supp_get_beacon_ie(void *ctx)
138 {
139 struct wpa *wpa = ctx;
140 const u8 *ie;
141 size_t ielen;
142
143 wpa_printf(MSG_DEBUG, "SUPP: %s", __func__);
144
145 ie = wpa_auth_get_wpa_ie(wpa->auth_group, &ielen);
146 if (ie == NULL || ielen < 1)
147 return -1;
148 if (ie[0] == WLAN_EID_RSN)
149 return wpa_sm_set_ap_rsn_ie(wpa->supp, ie, 2 + ie[1]);
150 return wpa_sm_set_ap_wpa_ie(wpa->supp, ie, 2 + ie[1]);
151 }
152
153
supp_set_key(void * ctx,wpa_alg alg,const u8 * addr,int key_idx,int set_tx,const u8 * seq,size_t seq_len,const u8 * key,size_t key_len)154 static int supp_set_key(void *ctx, wpa_alg alg,
155 const u8 *addr, int key_idx, int set_tx,
156 const u8 *seq, size_t seq_len,
157 const u8 *key, size_t key_len)
158 {
159 wpa_printf(MSG_DEBUG, "SUPP: %s(alg=%d addr=" MACSTR " key_idx=%d "
160 "set_tx=%d)",
161 __func__, alg, MAC2STR(addr), key_idx, set_tx);
162 wpa_hexdump(MSG_DEBUG, "SUPP: set_key - seq", seq, seq_len);
163 wpa_hexdump(MSG_DEBUG, "SUPP: set_key - key", key, key_len);
164 return 0;
165 }
166
167
supp_mlme_setprotection(void * ctx,const u8 * addr,int protection_type,int key_type)168 static int supp_mlme_setprotection(void *ctx, const u8 *addr,
169 int protection_type, int key_type)
170 {
171 wpa_printf(MSG_DEBUG, "SUPP: %s(addr=" MACSTR " protection_type=%d "
172 "key_type=%d)",
173 __func__, MAC2STR(addr), protection_type, key_type);
174 return 0;
175 }
176
177
supp_cancel_scan(void * ctx)178 static void supp_cancel_scan(void *ctx)
179 {
180 wpa_printf(MSG_DEBUG, "SUPP: %s", __func__);
181 }
182
183
supp_cancel_auth_timeout(void * ctx)184 static void supp_cancel_auth_timeout(void *ctx)
185 {
186 wpa_printf(MSG_DEBUG, "SUPP: %s", __func__);
187 }
188
189
supp_init(struct wpa * wpa)190 static int supp_init(struct wpa *wpa)
191 {
192 struct wpa_sm_ctx *ctx = os_zalloc(sizeof(*ctx));
193 if (ctx == NULL)
194 return -1;
195
196 ctx->ctx = wpa;
197 ctx->set_state = supp_set_state;
198 ctx->get_ssid = supp_get_ssid;
199 ctx->get_bssid = supp_get_bssid;
200 ctx->ether_send = supp_ether_send;
201 ctx->get_beacon_ie = supp_get_beacon_ie;
202 ctx->alloc_eapol = supp_alloc_eapol;
203 ctx->set_key = supp_set_key;
204 ctx->mlme_setprotection = supp_mlme_setprotection;
205 ctx->cancel_scan = supp_cancel_scan;
206 ctx->cancel_auth_timeout = supp_cancel_auth_timeout;
207 wpa->supp = wpa_sm_init(ctx);
208 if (wpa->supp == NULL) {
209 wpa_printf(MSG_DEBUG, "SUPP: wpa_sm_init() failed");
210 return -1;
211 }
212
213 wpa_sm_set_own_addr(wpa->supp, wpa->supp_addr);
214 wpa_sm_set_param(wpa->supp, WPA_PARAM_RSN_ENABLED, 1);
215 wpa_sm_set_param(wpa->supp, WPA_PARAM_PROTO, WPA_PROTO_RSN);
216 wpa_sm_set_param(wpa->supp, WPA_PARAM_PAIRWISE, WPA_CIPHER_CCMP);
217 wpa_sm_set_param(wpa->supp, WPA_PARAM_GROUP, WPA_CIPHER_CCMP);
218 wpa_sm_set_param(wpa->supp, WPA_PARAM_KEY_MGMT, WPA_KEY_MGMT_PSK);
219 wpa_sm_set_pmk(wpa->supp, wpa->psk, PMK_LEN);
220
221 wpa->supp_ie_len = sizeof(wpa->supp_ie);
222 if (wpa_sm_set_assoc_wpa_ie_default(wpa->supp, wpa->supp_ie,
223 &wpa->supp_ie_len) < 0) {
224 wpa_printf(MSG_DEBUG, "SUPP: wpa_sm_set_assoc_wpa_ie_default()"
225 " failed");
226 return -1;
227 }
228
229 wpa_sm_notify_assoc(wpa->supp, wpa->auth_addr);
230
231 return 0;
232 }
233
234
auth_logger(void * ctx,const u8 * addr,logger_level level,const char * txt)235 static void auth_logger(void *ctx, const u8 *addr, logger_level level,
236 const char *txt)
237 {
238 if (addr)
239 wpa_printf(MSG_DEBUG, "AUTH: " MACSTR " - %s",
240 MAC2STR(addr), txt);
241 else
242 wpa_printf(MSG_DEBUG, "AUTH: %s", txt);
243 }
244
245
supp_eapol_rx(void * eloop_data,void * user_ctx)246 static void supp_eapol_rx(void *eloop_data, void *user_ctx)
247 {
248 struct wpa *wpa = eloop_data;
249
250 wpa_printf(MSG_DEBUG, "SUPP: RX EAPOL frame");
251 wpa_sm_rx_eapol(wpa->supp, wpa->auth_addr, wpa->auth_eapol,
252 wpa->auth_eapol_len);
253 }
254
255
auth_send_eapol(void * ctx,const u8 * addr,const u8 * data,size_t data_len,int encrypt)256 static int auth_send_eapol(void *ctx, const u8 *addr, const u8 *data,
257 size_t data_len, int encrypt)
258 {
259 struct wpa *wpa = ctx;
260
261 wpa_printf(MSG_DEBUG, "AUTH: %s(addr=" MACSTR " data_len=%lu "
262 "encrypt=%d)",
263 __func__, MAC2STR(addr), (unsigned long) data_len, encrypt);
264
265 os_free(wpa->auth_eapol);
266 wpa->auth_eapol = os_malloc(data_len);
267 if (wpa->auth_eapol == NULL)
268 return -1;
269 os_memcpy(wpa->auth_eapol_dst, addr, ETH_ALEN);
270 os_memcpy(wpa->auth_eapol, data, data_len);
271 wpa->auth_eapol_len = data_len;
272 eloop_register_timeout(0, 0, supp_eapol_rx, wpa, NULL);
273
274 return 0;
275 }
276
277
auth_get_psk(void * ctx,const u8 * addr,const u8 * prev_psk)278 static const u8 * auth_get_psk(void *ctx, const u8 *addr, const u8 *prev_psk)
279 {
280 struct wpa *wpa = ctx;
281 wpa_printf(MSG_DEBUG, "AUTH: %s (addr=" MACSTR " prev_psk=%p)",
282 __func__, MAC2STR(addr), prev_psk);
283 if (prev_psk)
284 return NULL;
285 return wpa->psk;
286 }
287
288
auth_init_group(struct wpa * wpa)289 static int auth_init_group(struct wpa *wpa)
290 {
291 struct wpa_auth_config conf;
292 struct wpa_auth_callbacks cb;
293
294 wpa_printf(MSG_DEBUG, "AUTH: Initializing group state machine");
295
296 os_memset(&conf, 0, sizeof(conf));
297 conf.wpa = 2;
298 conf.wpa_key_mgmt = WPA_KEY_MGMT_PSK;
299 conf.wpa_pairwise = WPA_CIPHER_CCMP;
300 conf.rsn_pairwise = WPA_CIPHER_CCMP;
301 conf.wpa_group = WPA_CIPHER_CCMP;
302 conf.eapol_version = 2;
303
304 os_memset(&cb, 0, sizeof(cb));
305 cb.ctx = wpa;
306 cb.logger = auth_logger;
307 cb.send_eapol = auth_send_eapol;
308 cb.get_psk = auth_get_psk;
309
310 wpa->auth_group = wpa_init(wpa->auth_addr, &conf, &cb);
311 if (wpa->auth_group == NULL) {
312 wpa_printf(MSG_DEBUG, "AUTH: wpa_init() failed");
313 return -1;
314 }
315
316 return 0;
317 }
318
319
auth_init(struct wpa * wpa)320 static int auth_init(struct wpa *wpa)
321 {
322 wpa->auth = wpa_auth_sta_init(wpa->auth_group, wpa->supp_addr);
323 if (wpa->auth == NULL) {
324 wpa_printf(MSG_DEBUG, "AUTH: wpa_auth_sta_init() failed");
325 return -1;
326 }
327
328 if (wpa_validate_wpa_ie(wpa->auth_group, wpa->auth, wpa->supp_ie,
329 wpa->supp_ie_len, NULL, 0) != WPA_IE_OK) {
330 wpa_printf(MSG_DEBUG, "AUTH: wpa_validate_wpa_ie() failed");
331 return -1;
332 }
333
334 wpa_auth_sm_event(wpa->auth, WPA_ASSOC);
335
336 wpa_auth_sta_associated(wpa->auth_group, wpa->auth);
337
338 return 0;
339 }
340
341
deinit(struct wpa * wpa)342 static void deinit(struct wpa *wpa)
343 {
344 wpa_auth_sta_deinit(wpa->auth);
345 wpa_sm_deinit(wpa->supp);
346 wpa_deinit(wpa->auth_group);
347 os_free(wpa->auth_eapol);
348 wpa->auth_eapol = NULL;
349 os_free(wpa->supp_eapol);
350 wpa->supp_eapol = NULL;
351 }
352
353
main(int argc,char * argv[])354 int main(int argc, char *argv[])
355 {
356 struct wpa wpa;
357
358 if (os_program_init())
359 return -1;
360
361 os_memset(&wpa, 0, sizeof(wpa));
362 os_memset(wpa.auth_addr, 0x12, ETH_ALEN);
363 os_memset(wpa.supp_addr, 0x32, ETH_ALEN);
364 os_memset(wpa.psk, 0x44, PMK_LEN);
365
366 wpa_debug_level = 0;
367 wpa_debug_show_keys = 1;
368
369 if (eloop_init(&wpa)) {
370 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
371 return -1;
372 }
373
374 if (auth_init_group(&wpa) < 0)
375 return -1;
376
377 if (supp_init(&wpa) < 0)
378 return -1;
379
380 if (auth_init(&wpa) < 0)
381 return -1;
382
383 wpa_printf(MSG_DEBUG, "Starting eloop");
384 eloop_run();
385 wpa_printf(MSG_DEBUG, "eloop done");
386
387 deinit(&wpa);
388
389 eloop_destroy();
390
391 os_program_deinit();
392
393 return 0;
394 }
395