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 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, int reason_code) 39 { 40 wpa_supplicant_deauthenticate(wpa_s, reason_code); 41 } 42 43 44 static 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 71 static 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 79 static void _wpa_supplicant_set_state(void *ctx, enum wpa_states state) 80 { 81 struct wpa_supplicant *wpa_s = ctx; 82 wpa_s->wpa_state = state; 83 } 84 85 86 static enum wpa_states _wpa_supplicant_get_state(void *ctx) 87 { 88 struct wpa_supplicant *wpa_s = ctx; 89 return wpa_s->wpa_state; 90 } 91 92 93 static 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 } 99 100 101 static void * wpa_supplicant_get_network_ctx(void *wpa_s) 102 { 103 return wpa_supplicant_get_ssid(wpa_s); 104 } 105 106 107 static void _wpa_supplicant_cancel_auth_timeout(void *wpa_s) 108 { 109 wpa_supplicant_cancel_auth_timeout(wpa_s); 110 } 111 112 113 static int wpa_supplicant_get_beacon_ie(void *wpa_s) 114 { 115 printf("%s - not implemented\n", __func__); 116 return -1; 117 } 118 119 120 static int wpa_supplicant_get_bssid(void *wpa_s, u8 *bssid) 121 { 122 printf("%s - not implemented\n", __func__); 123 return -1; 124 } 125 126 127 static int wpa_supplicant_set_key(void *wpa_s, enum wpa_alg alg, 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 } 135 136 137 static 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 } 144 145 146 static int wpa_supplicant_add_pmkid(void *wpa_s, void *network_ctx, 147 const u8 *bssid, const u8 *pmkid, 148 const u8 *fils_cache_id, 149 const u8 *pmk, size_t pmk_len) 150 { 151 printf("%s - not implemented\n", __func__); 152 return -1; 153 } 154 155 156 static int wpa_supplicant_remove_pmkid(void *wpa_s, void *network_ctx, 157 const u8 *bssid, const u8 *pmkid, 158 const u8 *fils_cache_id) 159 { 160 printf("%s - not implemented\n", __func__); 161 return -1; 162 } 163 164 165 static 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 } 171 172 173 static const struct wpa_config_blob * 174 wpa_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 } 179 180 181 static 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 } 193 194 195 static 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 } 202 203 204 static 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 } 214 215 216 static struct wpa_driver_ops dummy_driver; 217 218 219 static 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; 231 ctx->msg_ctx = wpa_s; 232 ctx->set_state = _wpa_supplicant_set_state; 233 ctx->get_state = _wpa_supplicant_get_state; 234 ctx->deauthenticate = _wpa_supplicant_deauthenticate; 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 } 265 266 267 static void eapol_test_terminate(int sig, void *signal_ctx) 268 { 269 struct wpa_supplicant *wpa_s = signal_ctx; 270 wpa_msg(wpa_s, MSG_INFO, "Signal %d received - terminating", sig); 271 eloop_terminate(); 272 } 273 274 275 int 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 } 300 301 if (eap_register_methods()) { 302 wpa_printf(MSG_ERROR, "Failed to register EAP methods"); 303 return -1; 304 } 305 306 if (eloop_init()) { 307 wpa_printf(MSG_ERROR, "Failed to initialize event loop"); 308 return -1; 309 } 310 311 os_memset(&wpa_s, 0, sizeof(wpa_s)); 312 wpa_s.conf = wpa_config_read(argv[1], NULL); 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); 343 eloop_register_signal_terminate(eapol_test_terminate, &wpa_s); 344 eloop_register_signal_reconfig(eapol_test_terminate, &wpa_s); 345 eloop_run(); 346 347 if (preauth_test.auth_timed_out) 348 ret = -2; 349 else { 350 ret = pmksa_cache_set_current(wpa_s.wpa, NULL, bssid, NULL, 0, 351 NULL) ? 0 : -3; 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 } 364
