1 /* 2 * WPA Supplicant - test code for pre-authentication 3 * Copyright (c) 2003-2007, Jouni Malinen <j (at) 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 30 extern int wpa_debug_level; 31 extern int wpa_debug_show_keys; 32 33 struct wpa_driver_ops *wpa_drivers[] = { NULL }; 34 35 36 struct preauth_test_data { 37 int auth_timed_out; 38 }; 39 40 41 static void _wpa_supplicant_disassociate(void *wpa_s, int reason_code) 42 { 43 wpa_supplicant_disassociate(wpa_s, reason_code); 44 } 45 46 47 static void _wpa_supplicant_deauthenticate(void *wpa_s, int reason_code) 48 { 49 wpa_supplicant_deauthenticate(wpa_s, reason_code); 50 } 51 52 53 static u8 * wpa_alloc_eapol(const struct wpa_supplicant *wpa_s, u8 type, 54 const void *data, u16 data_len, 55 size_t *msg_len, void **data_pos) 56 { 57 struct ieee802_1x_hdr *hdr; 58 59 *msg_len = sizeof(*hdr) + data_len; 60 hdr = os_malloc(*msg_len); 61 if (hdr == NULL) 62 return NULL; 63 64 hdr->version = wpa_s->conf->eapol_version; 65 hdr->type = type; 66 hdr->length = htons(data_len); 67 68 if (data) 69 os_memcpy(hdr + 1, data, data_len); 70 else 71 os_memset(hdr + 1, 0, data_len); 72 73 if (data_pos) 74 *data_pos = hdr + 1; 75 76 return (u8 *) hdr; 77 } 78 79 80 static u8 * _wpa_alloc_eapol(void *wpa_s, u8 type, 81 const void *data, u16 data_len, 82 size_t *msg_len, void **data_pos) 83 { 84 return wpa_alloc_eapol(wpa_s, type, data, data_len, msg_len, data_pos); 85 } 86 87 88 static void _wpa_supplicant_set_state(void *ctx, enum wpa_states state) 89 { 90 struct wpa_supplicant *wpa_s = ctx; 91 wpa_s->wpa_state = state; 92 } 93 94 95 static enum wpa_states _wpa_supplicant_get_state(void *ctx) 96 { 97 struct wpa_supplicant *wpa_s = ctx; 98 return wpa_s->wpa_state; 99 } 100 101 102 static int wpa_ether_send(void *wpa_s, const u8 *dest, u16 proto, 103 const u8 *buf, size_t len) 104 { 105 printf("%s - not implemented\n", __func__); 106 return -1; 107 } 108 109 110 static void * wpa_supplicant_get_network_ctx(void *wpa_s) 111 { 112 return wpa_supplicant_get_ssid(wpa_s); 113 } 114 115 116 static void _wpa_supplicant_cancel_auth_timeout(void *wpa_s) 117 { 118 wpa_supplicant_cancel_auth_timeout(wpa_s); 119 } 120 121 122 static int wpa_supplicant_get_beacon_ie(void *wpa_s) 123 { 124 printf("%s - not implemented\n", __func__); 125 return -1; 126 } 127 128 129 static int wpa_supplicant_get_bssid(void *wpa_s, u8 *bssid) 130 { 131 printf("%s - not implemented\n", __func__); 132 return -1; 133 } 134 135 136 static int wpa_supplicant_set_key(void *wpa_s, enum wpa_alg alg, 137 const u8 *addr, int key_idx, int set_tx, 138 const u8 *seq, size_t seq_len, 139 const u8 *key, size_t key_len) 140 { 141 printf("%s - not implemented\n", __func__); 142 return -1; 143 } 144 145 146 static int wpa_supplicant_mlme_setprotection(void *wpa_s, const u8 *addr, 147 int protection_type, 148 int key_type) 149 { 150 printf("%s - not implemented\n", __func__); 151 return -1; 152 } 153 154 155 static int wpa_supplicant_add_pmkid(void *wpa_s, 156 const u8 *bssid, const u8 *pmkid) 157 { 158 printf("%s - not implemented\n", __func__); 159 return -1; 160 } 161 162 163 static int wpa_supplicant_remove_pmkid(void *wpa_s, 164 const u8 *bssid, const u8 *pmkid) 165 { 166 printf("%s - not implemented\n", __func__); 167 return -1; 168 } 169 170 171 static void wpa_supplicant_set_config_blob(void *ctx, 172 struct wpa_config_blob *blob) 173 { 174 struct wpa_supplicant *wpa_s = ctx; 175 wpa_config_set_blob(wpa_s->conf, blob); 176 } 177 178 179 static const struct wpa_config_blob * 180 wpa_supplicant_get_config_blob(void *ctx, const char *name) 181 { 182 struct wpa_supplicant *wpa_s = ctx; 183 return wpa_config_get_blob(wpa_s->conf, name); 184 } 185 186 187 static void test_eapol_clean(struct wpa_supplicant *wpa_s) 188 { 189 rsn_preauth_deinit(wpa_s->wpa); 190 pmksa_candidate_free(wpa_s->wpa); 191 wpa_sm_deinit(wpa_s->wpa); 192 scard_deinit(wpa_s->scard); 193 if (wpa_s->ctrl_iface) { 194 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface); 195 wpa_s->ctrl_iface = NULL; 196 } 197 wpa_config_free(wpa_s->conf); 198 } 199 200 201 static void eapol_test_timeout(void *eloop_ctx, void *timeout_ctx) 202 { 203 struct preauth_test_data *p = eloop_ctx; 204 printf("EAPOL test timed out\n"); 205 p->auth_timed_out = 1; 206 eloop_terminate(); 207 } 208 209 210 static void eapol_test_poll(void *eloop_ctx, void *timeout_ctx) 211 { 212 struct wpa_supplicant *wpa_s = eloop_ctx; 213 if (!rsn_preauth_in_progress(wpa_s->wpa)) 214 eloop_terminate(); 215 else { 216 eloop_register_timeout(0, 100000, eapol_test_poll, eloop_ctx, 217 timeout_ctx); 218 } 219 } 220 221 222 static struct wpa_driver_ops dummy_driver; 223 224 225 static void wpa_init_conf(struct wpa_supplicant *wpa_s, const char *ifname) 226 { 227 struct l2_packet_data *l2; 228 struct wpa_sm_ctx *ctx; 229 230 os_memset(&dummy_driver, 0, sizeof(dummy_driver)); 231 wpa_s->driver = &dummy_driver; 232 233 ctx = os_zalloc(sizeof(*ctx)); 234 assert(ctx != NULL); 235 236 ctx->ctx = wpa_s; 237 ctx->msg_ctx = wpa_s; 238 ctx->set_state = _wpa_supplicant_set_state; 239 ctx->get_state = _wpa_supplicant_get_state; 240 ctx->deauthenticate = _wpa_supplicant_deauthenticate; 241 ctx->disassociate = _wpa_supplicant_disassociate; 242 ctx->set_key = wpa_supplicant_set_key; 243 ctx->get_network_ctx = wpa_supplicant_get_network_ctx; 244 ctx->get_bssid = wpa_supplicant_get_bssid; 245 ctx->ether_send = wpa_ether_send; 246 ctx->get_beacon_ie = wpa_supplicant_get_beacon_ie; 247 ctx->alloc_eapol = _wpa_alloc_eapol; 248 ctx->cancel_auth_timeout = _wpa_supplicant_cancel_auth_timeout; 249 ctx->add_pmkid = wpa_supplicant_add_pmkid; 250 ctx->remove_pmkid = wpa_supplicant_remove_pmkid; 251 ctx->set_config_blob = wpa_supplicant_set_config_blob; 252 ctx->get_config_blob = wpa_supplicant_get_config_blob; 253 ctx->mlme_setprotection = wpa_supplicant_mlme_setprotection; 254 255 wpa_s->wpa = wpa_sm_init(ctx); 256 assert(wpa_s->wpa != NULL); 257 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, WPA_PROTO_RSN); 258 259 os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname)); 260 wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname, NULL); 261 262 l2 = l2_packet_init(wpa_s->ifname, NULL, ETH_P_RSN_PREAUTH, NULL, 263 NULL, 0); 264 assert(l2 != NULL); 265 if (l2_packet_get_own_addr(l2, wpa_s->own_addr)) { 266 wpa_printf(MSG_WARNING, "Failed to get own L2 address\n"); 267 exit(-1); 268 } 269 l2_packet_deinit(l2); 270 wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr); 271 } 272 273 274 static void eapol_test_terminate(int sig, void *signal_ctx) 275 { 276 struct wpa_supplicant *wpa_s = signal_ctx; 277 wpa_msg(wpa_s, MSG_INFO, "Signal %d received - terminating", sig); 278 eloop_terminate(); 279 } 280 281 282 int main(int argc, char *argv[]) 283 { 284 struct wpa_supplicant wpa_s; 285 int ret = 1; 286 u8 bssid[ETH_ALEN]; 287 struct preauth_test_data preauth_test; 288 289 if (os_program_init()) 290 return -1; 291 292 os_memset(&preauth_test, 0, sizeof(preauth_test)); 293 294 wpa_debug_level = 0; 295 wpa_debug_show_keys = 1; 296 297 if (argc != 4) { 298 printf("usage: preauth_test <conf> <target MAC address> " 299 "<ifname>\n"); 300 return -1; 301 } 302 303 if (hwaddr_aton(argv[2], bssid)) { 304 printf("Failed to parse target address '%s'.\n", argv[2]); 305 return -1; 306 } 307 308 if (eap_register_methods()) { 309 wpa_printf(MSG_ERROR, "Failed to register EAP methods"); 310 return -1; 311 } 312 313 if (eloop_init()) { 314 wpa_printf(MSG_ERROR, "Failed to initialize event loop"); 315 return -1; 316 } 317 318 os_memset(&wpa_s, 0, sizeof(wpa_s)); 319 wpa_s.conf = wpa_config_read(argv[1]); 320 if (wpa_s.conf == NULL) { 321 printf("Failed to parse configuration file '%s'.\n", argv[1]); 322 return -1; 323 } 324 if (wpa_s.conf->ssid == NULL) { 325 printf("No networks defined.\n"); 326 return -1; 327 } 328 329 wpa_init_conf(&wpa_s, argv[3]); 330 wpa_s.ctrl_iface = wpa_supplicant_ctrl_iface_init(&wpa_s); 331 if (wpa_s.ctrl_iface == NULL) { 332 printf("Failed to initialize control interface '%s'.\n" 333 "You may have another preauth_test process already " 334 "running or the file was\n" 335 "left by an unclean termination of preauth_test in " 336 "which case you will need\n" 337 "to manually remove this file before starting " 338 "preauth_test again.\n", 339 wpa_s.conf->ctrl_interface); 340 return -1; 341 } 342 if (wpa_supplicant_scard_init(&wpa_s, wpa_s.conf->ssid)) 343 return -1; 344 345 if (rsn_preauth_init(wpa_s.wpa, bssid, &wpa_s.conf->ssid->eap)) 346 return -1; 347 348 eloop_register_timeout(30, 0, eapol_test_timeout, &preauth_test, NULL); 349 eloop_register_timeout(0, 100000, eapol_test_poll, &wpa_s, NULL); 350 eloop_register_signal_terminate(eapol_test_terminate, &wpa_s); 351 eloop_register_signal_reconfig(eapol_test_terminate, &wpa_s); 352 eloop_run(); 353 354 if (preauth_test.auth_timed_out) 355 ret = -2; 356 else { 357 ret = pmksa_cache_set_current(wpa_s.wpa, NULL, bssid, NULL, 0) 358 ? 0 : -3; 359 } 360 361 test_eapol_clean(&wpa_s); 362 363 eap_peer_unregister_methods(); 364 365 eloop_destroy(); 366 367 os_program_deinit(); 368 369 return ret; 370 } 371
