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 30 const struct wpa_driver_ops *const wpa_drivers[] = { NULL }; 31 32 33 struct preauth_test_data { 34 int auth_timed_out; 35 }; 36 37 38 static void _wpa_supplicant_deauthenticate(void *wpa_s, u16 reason_code) 39 { 40 wpa_supplicant_deauthenticate(wpa_s, reason_code); 41 } 42 43 44 static void _wpa_supplicant_reconnect(void *wpa_s) 45 { 46 wpa_supplicant_reconnect(wpa_s); 47 } 48 49 50 static u8 * wpa_alloc_eapol(const struct wpa_supplicant *wpa_s, u8 type, 51 const void *data, u16 data_len, 52 size_t *msg_len, void **data_pos) 53 { 54 struct ieee802_1x_hdr *hdr; 55 56 *msg_len = sizeof(*hdr) + data_len; 57 hdr = os_malloc(*msg_len); 58 if (hdr == NULL) 59 return NULL; 60 61 hdr->version = wpa_s->conf->eapol_version; 62 hdr->type = type; 63 hdr->length = htons(data_len); 64 65 if (data) 66 os_memcpy(hdr + 1, data, data_len); 67 else 68 os_memset(hdr + 1, 0, data_len); 69 70 if (data_pos) 71 *data_pos = hdr + 1; 72 73 return (u8 *) hdr; 74 } 75 76 77 static u8 * _wpa_alloc_eapol(void *wpa_s, u8 type, 78 const void *data, u16 data_len, 79 size_t *msg_len, void **data_pos) 80 { 81 return wpa_alloc_eapol(wpa_s, type, data, data_len, msg_len, data_pos); 82 } 83 84 85 static void _wpa_supplicant_set_state(void *ctx, enum wpa_states state) 86 { 87 struct wpa_supplicant *wpa_s = ctx; 88 wpa_s->wpa_state = state; 89 } 90 91 92 static enum wpa_states _wpa_supplicant_get_state(void *ctx) 93 { 94 struct wpa_supplicant *wpa_s = ctx; 95 return wpa_s->wpa_state; 96 } 97 98 99 static int wpa_ether_send(void *wpa_s, const u8 *dest, u16 proto, 100 const u8 *buf, size_t len) 101 { 102 printf("%s - not implemented\n", __func__); 103 return -1; 104 } 105 106 107 static void * wpa_supplicant_get_network_ctx(void *wpa_s) 108 { 109 return wpa_supplicant_get_ssid(wpa_s); 110 } 111 112 113 static void _wpa_supplicant_cancel_auth_timeout(void *wpa_s) 114 { 115 wpa_supplicant_cancel_auth_timeout(wpa_s); 116 } 117 118 119 static int wpa_supplicant_get_beacon_ie(void *wpa_s) 120 { 121 printf("%s - not implemented\n", __func__); 122 return -1; 123 } 124 125 126 static int wpa_supplicant_get_bssid(void *wpa_s, u8 *bssid) 127 { 128 printf("%s - not implemented\n", __func__); 129 return -1; 130 } 131 132 133 static int wpa_supplicant_set_key(void *wpa_s, enum wpa_alg alg, 134 const u8 *addr, int key_idx, int set_tx, 135 const u8 *seq, size_t seq_len, 136 const u8 *key, size_t key_len, 137 enum key_flag key_flag) 138 { 139 printf("%s - not implemented\n", __func__); 140 return -1; 141 } 142 143 144 static int wpa_supplicant_mlme_setprotection(void *wpa_s, const u8 *addr, 145 int protection_type, 146 int key_type) 147 { 148 printf("%s - not implemented\n", __func__); 149 return -1; 150 } 151 152 153 static int wpa_supplicant_add_pmkid(void *wpa_s, void *network_ctx, 154 const u8 *bssid, const u8 *pmkid, 155 const u8 *fils_cache_id, 156 const u8 *pmk, size_t pmk_len, 157 u32 pmk_lifetime, u8 pmk_reauth_threshold, 158 int akmp) 159 { 160 printf("%s - not implemented\n", __func__); 161 return -1; 162 } 163 164 165 static int wpa_supplicant_remove_pmkid(void *wpa_s, void *network_ctx, 166 const u8 *bssid, const u8 *pmkid, 167 const u8 *fils_cache_id) 168 { 169 printf("%s - not implemented\n", __func__); 170 return -1; 171 } 172 173 174 static void wpa_supplicant_set_config_blob(void *ctx, 175 struct wpa_config_blob *blob) 176 { 177 struct wpa_supplicant *wpa_s = ctx; 178 wpa_config_set_blob(wpa_s->conf, blob); 179 } 180 181 182 static const struct wpa_config_blob * 183 wpa_supplicant_get_config_blob(void *ctx, const char *name) 184 { 185 struct wpa_supplicant *wpa_s = ctx; 186 return wpa_config_get_blob(wpa_s->conf, name); 187 } 188 189 190 static void test_eapol_clean(struct wpa_supplicant *wpa_s) 191 { 192 rsn_preauth_deinit(wpa_s->wpa); 193 pmksa_candidate_free(wpa_s->wpa); 194 wpa_sm_deinit(wpa_s->wpa); 195 scard_deinit(wpa_s->scard); 196 wpa_supplicant_ctrl_iface_deinit(wpa_s, wpa_s->ctrl_iface); 197 wpa_s->ctrl_iface = NULL; 198 wpa_config_free(wpa_s->conf); 199 } 200 201 202 static void eapol_test_timeout(void *eloop_ctx, void *timeout_ctx) 203 { 204 struct preauth_test_data *p = eloop_ctx; 205 printf("EAPOL test timed out\n"); 206 p->auth_timed_out = 1; 207 eloop_terminate(); 208 } 209 210 211 static void eapol_test_poll(void *eloop_ctx, void *timeout_ctx) 212 { 213 struct wpa_supplicant *wpa_s = eloop_ctx; 214 if (!rsn_preauth_in_progress(wpa_s->wpa)) 215 eloop_terminate(); 216 else { 217 eloop_register_timeout(0, 100000, eapol_test_poll, eloop_ctx, 218 timeout_ctx); 219 } 220 } 221 222 223 static struct wpa_driver_ops stub_driver; 224 225 226 static void wpa_init_conf(struct wpa_supplicant *wpa_s, const char *ifname) 227 { 228 struct l2_packet_data *l2; 229 struct wpa_sm_ctx *ctx; 230 231 os_memset(&stub_driver, 0, sizeof(stub_driver)); 232 wpa_s->driver = &stub_driver; 233 234 ctx = os_zalloc(sizeof(*ctx)); 235 assert(ctx != NULL); 236 237 ctx->ctx = wpa_s; 238 ctx->msg_ctx = wpa_s; 239 ctx->set_state = _wpa_supplicant_set_state; 240 ctx->get_state = _wpa_supplicant_get_state; 241 ctx->deauthenticate = _wpa_supplicant_deauthenticate; 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 ctx->reconnect = _wpa_supplicant_reconnect; 255 256 wpa_s->wpa = wpa_sm_init(ctx); 257 assert(wpa_s->wpa != NULL); 258 wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, WPA_PROTO_RSN); 259 260 os_strlcpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname)); 261 wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname, NULL); 262 263 l2 = l2_packet_init(wpa_s->ifname, NULL, ETH_P_RSN_PREAUTH, NULL, 264 NULL, 0); 265 assert(l2 != NULL); 266 if (l2_packet_get_own_addr(l2, wpa_s->own_addr)) { 267 wpa_printf(MSG_WARNING, "Failed to get own L2 address\n"); 268 exit(-1); 269 } 270 l2_packet_deinit(l2); 271 wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr); 272 } 273 274 275 static void eapol_test_terminate(int sig, void *signal_ctx) 276 { 277 struct wpa_supplicant *wpa_s = signal_ctx; 278 wpa_msg(wpa_s, MSG_INFO, "Signal %d received - terminating", sig); 279 eloop_terminate(); 280 } 281 282 283 int main(int argc, char *argv[]) 284 { 285 struct wpa_supplicant wpa_s; 286 int ret = 1; 287 u8 bssid[ETH_ALEN]; 288 struct preauth_test_data preauth_test; 289 290 if (os_program_init()) 291 return -1; 292 293 os_memset(&preauth_test, 0, sizeof(preauth_test)); 294 295 wpa_debug_level = 0; 296 wpa_debug_show_keys = 1; 297 298 if (argc != 4) { 299 printf("usage: preauth_test <conf> <target MAC address> " 300 "<ifname>\n"); 301 return -1; 302 } 303 304 if (hwaddr_aton(argv[2], bssid)) { 305 printf("Failed to parse target address '%s'.\n", argv[2]); 306 return -1; 307 } 308 309 if (eap_register_methods()) { 310 wpa_printf(MSG_ERROR, "Failed to register EAP methods"); 311 return -1; 312 } 313 314 if (eloop_init()) { 315 wpa_printf(MSG_ERROR, "Failed to initialize event loop"); 316 return -1; 317 } 318 319 os_memset(&wpa_s, 0, sizeof(wpa_s)); 320 wpa_s.conf = wpa_config_read(argv[1], NULL); 321 if (wpa_s.conf == NULL) { 322 printf("Failed to parse configuration file '%s'.\n", argv[1]); 323 return -1; 324 } 325 if (wpa_s.conf->ssid == NULL) { 326 printf("No networks defined.\n"); 327 return -1; 328 } 329 330 wpa_init_conf(&wpa_s, argv[3]); 331 wpa_s.ctrl_iface = wpa_supplicant_ctrl_iface_init(&wpa_s); 332 if (wpa_s.ctrl_iface == NULL) { 333 printf("Failed to initialize control interface '%s'.\n" 334 "You may have another preauth_test process already " 335 "running or the file was\n" 336 "left by an unclean termination of preauth_test in " 337 "which case you will need\n" 338 "to manually remove this file before starting " 339 "preauth_test again.\n", 340 wpa_s.conf->ctrl_interface); 341 return -1; 342 } 343 if (wpa_supplicant_scard_init(&wpa_s, wpa_s.conf->ssid)) 344 return -1; 345 346 if (rsn_preauth_init(wpa_s.wpa, bssid, &wpa_s.conf->ssid->eap)) 347 return -1; 348 349 eloop_register_timeout(30, 0, eapol_test_timeout, &preauth_test, NULL); 350 eloop_register_timeout(0, 100000, eapol_test_poll, &wpa_s, NULL); 351 eloop_register_signal_terminate(eapol_test_terminate, &wpa_s); 352 eloop_register_signal_reconfig(eapol_test_terminate, &wpa_s); 353 eloop_run(); 354 355 if (preauth_test.auth_timed_out) 356 ret = -2; 357 else { 358 ret = pmksa_cache_set_current(wpa_s.wpa, NULL, bssid, NULL, 0, 359 NULL, 0) ? 0 : -3; 360 } 361 362 test_eapol_clean(&wpa_s); 363 364 eap_peer_unregister_methods(); 365 366 eloop_destroy(); 367 368 os_program_deinit(); 369 370 return ret; 371 } 372