contrib/wpa_supplicant/preauth_test.c

   1 /*
   2  * WPA Supplicant - test code for pre-authentication
   3  * Copyright (c) 2003-2006, 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  * IEEE 802.1X Supplicant test code (to be used in place of wpa_supplicant.c.
  15  * Not used in production version.
  16  */
  17
  18 #include "includes.h"
  19 #include <assert.h>
  20
  21 #include "common.h"
  22 #include "config.h"
  23 #include "eapol_sm.h"
  24 #include "eloop.h"
  25 #include "wpa.h"
  26 #include "eap.h"
  27 #include "wpa_supplicant.h"
  28 #include "wpa_supplicant_i.h"
  29 #include "l2_packet.h"
  30 #include "ctrl_iface.h"
  31 #include "pcsc_funcs.h"
  32 #include "preauth.h"
  33 #include "pmksa_cache.h"
  34
  35
  36 extern int wpa_debug_level;
  37 extern int wpa_debug_show_keys;
  38
  39 struct wpa_driver_ops *wpa_supplicant_drivers[] = { NULL };
  40
  41
  42 struct preauth_test_data {
  43         int auth_timed_out;
  44 };
  45
  46
  47 static void _wpa_supplicant_req_scan(void *wpa_s, int sec, int usec)
  48 {
  49         wpa_supplicant_req_scan(wpa_s, sec, usec);
  50 }
  51
  52
  53 static void _wpa_supplicant_disassociate(void *wpa_s, int reason_code)
  54 {
  55         wpa_supplicant_disassociate(wpa_s, reason_code);
  56 }
  57
  58
  59 static void _wpa_supplicant_deauthenticate(void *wpa_s, int reason_code)
  60 {
  61         wpa_supplicant_deauthenticate(wpa_s, reason_code);
  62 }
  63
  64
  65 static u8 * wpa_alloc_eapol(const struct wpa_supplicant *wpa_s, u8 type,
  66                             const void *data, u16 data_len,
  67                             size_t *msg_len, void **data_pos)
  68 {
  69         struct ieee802_1x_hdr *hdr;
  70
  71         *msg_len = sizeof(*hdr) + data_len;
  72         hdr = os_malloc(*msg_len);
  73         if (hdr == NULL)
  74                 return NULL;
  75
  76         hdr->version = wpa_s->conf->eapol_version;
  77         hdr->type = type;
  78         hdr->length = htons(data_len);
  79
  80         if (data)
  81                 os_memcpy(hdr + 1, data, data_len);
  82         else
  83                 os_memset(hdr + 1, 0, data_len);
  84
  85         if (data_pos)
  86                 *data_pos = hdr + 1;
  87
  88         return (u8 *) hdr;
  89 }
  90
  91
  92 static u8 * _wpa_alloc_eapol(void *wpa_s, u8 type,
  93                              const void *data, u16 data_len,
  94                              size_t *msg_len, void **data_pos)
  95 {
  96         return wpa_alloc_eapol(wpa_s, type, data, data_len, msg_len, data_pos);
  97 }
  98
  99
 100 static void _wpa_supplicant_set_state(void *ctx, wpa_states state)
 101 {
 102         struct wpa_supplicant *wpa_s = ctx;
 103         wpa_s->wpa_state = state;
 104 }
 105
 106
 107 static wpa_states _wpa_supplicant_get_state(void *ctx)
 108 {
 109         struct wpa_supplicant *wpa_s = ctx;
 110         return wpa_s->wpa_state;
 111 }
 112
 113
 114 static int wpa_ether_send(void *wpa_s, const u8 *dest, u16 proto,
 115                           const u8 *buf, size_t len)
 116 {
 117         printf("%s - not implemented\n", __func__);
 118         return -1;
 119 }
 120
 121
 122 static struct wpa_ssid * _wpa_supplicant_get_ssid(void *wpa_s)
 123 {
 124         return wpa_supplicant_get_ssid(wpa_s);
 125 }
 126
 127
 128 static void _wpa_supplicant_cancel_auth_timeout(void *wpa_s)
 129 {
 130         wpa_supplicant_cancel_auth_timeout(wpa_s);
 131 }
 132
 133
 134 static int wpa_supplicant_get_beacon_ie(void *wpa_s)
 135 {
 136         printf("%s - not implemented\n", __func__);
 137         return -1;
 138 }
 139
 140
 141 void wpa_supplicant_scan(void *eloop_ctx, void *timeout_ctx)
 142 {
 143         printf("%s - not implemented\n", __func__);
 144 }
 145
 146
 147 static int wpa_supplicant_get_bssid(void *wpa_s, u8 *bssid)
 148 {
 149         printf("%s - not implemented\n", __func__);
 150         return -1;
 151 }
 152
 153
 154 static int wpa_supplicant_set_key(void *wpa_s, 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         printf("%s - not implemented\n", __func__);
 160         return -1;
 161 }
 162
 163
 164 static int wpa_supplicant_mlme_setprotection(void *wpa_s, const u8 *addr,
 165                                              int protection_type,
 166                                              int key_type)
 167 {
 168         printf("%s - not implemented\n", __func__);
 169         return -1;
 170 }
 171
 172
 173 static int wpa_supplicant_add_pmkid(void *wpa_s,
 174                                     const u8 *bssid, const u8 *pmkid)
 175 {
 176         printf("%s - not implemented\n", __func__);
 177         return -1;
 178 }
 179
 180
 181 static int wpa_supplicant_remove_pmkid(void *wpa_s,
 182                                        const u8 *bssid, const u8 *pmkid)
 183 {
 184         printf("%s - not implemented\n", __func__);
 185         return -1;
 186 }
 187
 188
 189 static void wpa_supplicant_set_config_blob(void *ctx,
 190                                            struct wpa_config_blob *blob)
 191 {
 192         struct wpa_supplicant *wpa_s = ctx;
 193         wpa_config_set_blob(wpa_s->conf, blob);
 194 }
 195
 196
 197 static const struct wpa_config_blob *
 198 wpa_supplicant_get_config_blob(void *ctx, const char *name)
 199 {
 200         struct wpa_supplicant *wpa_s = ctx;
 201         return wpa_config_get_blob(wpa_s->conf, name);
 202 }
 203
 204
 205 static void test_eapol_clean(struct wpa_supplicant *wpa_s)
 206 {
 207         rsn_preauth_deinit(wpa_s->wpa);
 208         pmksa_candidate_free(wpa_s->wpa);
 209         wpa_sm_deinit(wpa_s->wpa);
 210         scard_deinit(wpa_s->scard);
 211         if (wpa_s->ctrl_iface) {
 212                 wpa_supplicant_ctrl_iface_deinit(wpa_s->ctrl_iface);
 213                 wpa_s->ctrl_iface = NULL;
 214         }
 215         wpa_config_free(wpa_s->conf);
 216 }
 217
 218
 219 static void eapol_test_timeout(void *eloop_ctx, void *timeout_ctx)
 220 {
 221         struct preauth_test_data *p = eloop_ctx;
 222         printf("EAPOL test timed out\n");
 223         p->auth_timed_out = 1;
 224         eloop_terminate();
 225 }
 226
 227
 228 static void eapol_test_poll(void *eloop_ctx, void *timeout_ctx)
 229 {
 230         struct wpa_supplicant *wpa_s = eloop_ctx;
 231         if (!rsn_preauth_in_progress(wpa_s->wpa))
 232                 eloop_terminate();
 233         else {
 234                 eloop_register_timeout(0, 100000, eapol_test_poll, eloop_ctx,
 235                                        timeout_ctx);
 236         }
 237 }
 238
 239
 240 static struct wpa_driver_ops dummy_driver;
 241
 242
 243 static void wpa_init_conf(struct wpa_supplicant *wpa_s, const char *ifname)
 244 {
 245         struct l2_packet_data *l2;
 246         struct wpa_sm_ctx *ctx;
 247
 248         os_memset(&dummy_driver, 0, sizeof(dummy_driver));
 249         wpa_s->driver = &dummy_driver;
 250
 251         ctx = os_zalloc(sizeof(*ctx));
 252         assert(ctx != NULL);
 253
 254         ctx->ctx = wpa_s;
 255         ctx->set_state = _wpa_supplicant_set_state;
 256         ctx->get_state = _wpa_supplicant_get_state;
 257         ctx->req_scan = _wpa_supplicant_req_scan;
 258         ctx->deauthenticate = _wpa_supplicant_deauthenticate;
 259         ctx->disassociate = _wpa_supplicant_disassociate;
 260         ctx->set_key = wpa_supplicant_set_key;
 261         ctx->scan = wpa_supplicant_scan;
 262         ctx->get_ssid = _wpa_supplicant_get_ssid;
 263         ctx->get_bssid = wpa_supplicant_get_bssid;
 264         ctx->ether_send = wpa_ether_send;
 265         ctx->get_beacon_ie = wpa_supplicant_get_beacon_ie;
 266         ctx->alloc_eapol = _wpa_alloc_eapol;
 267         ctx->cancel_auth_timeout = _wpa_supplicant_cancel_auth_timeout;
 268         ctx->add_pmkid = wpa_supplicant_add_pmkid;
 269         ctx->remove_pmkid = wpa_supplicant_remove_pmkid;
 270         ctx->set_config_blob = wpa_supplicant_set_config_blob;
 271         ctx->get_config_blob = wpa_supplicant_get_config_blob;
 272         ctx->mlme_setprotection = wpa_supplicant_mlme_setprotection;
 273
 274         wpa_s->wpa = wpa_sm_init(ctx);
 275         assert(wpa_s->wpa != NULL);
 276         wpa_sm_set_param(wpa_s->wpa, WPA_PARAM_PROTO, WPA_PROTO_RSN);
 277
 278         os_strncpy(wpa_s->ifname, ifname, sizeof(wpa_s->ifname));
 279         wpa_sm_set_ifname(wpa_s->wpa, wpa_s->ifname, NULL);
 280
 281         l2 = l2_packet_init(wpa_s->ifname, NULL, ETH_P_RSN_PREAUTH, NULL,
 282                             NULL, 0);
 283         assert(l2 != NULL);
 284         if (l2_packet_get_own_addr(l2, wpa_s->own_addr)) {
 285                 wpa_printf(MSG_WARNING, "Failed to get own L2 address\n");
 286                 exit(-1);
 287         }
 288         l2_packet_deinit(l2);
 289         wpa_sm_set_own_addr(wpa_s->wpa, wpa_s->own_addr);
 290 }
 291
 292
 293 static void eapol_test_terminate(int sig, void *eloop_ctx,
 294                                  void *signal_ctx)
 295 {
 296         struct wpa_supplicant *wpa_s = eloop_ctx;
 297         wpa_msg(wpa_s, MSG_INFO, "Signal %d received - terminating", sig);
 298         eloop_terminate();
 299 }
 300
 301
 302 int main(int argc, char *argv[])
 303 {
 304         struct wpa_supplicant wpa_s;
 305         int ret = 1;
 306         u8 bssid[ETH_ALEN];
 307         struct preauth_test_data preauth_test;
 308
 309         if (os_program_init())
 310                 return -1;
 311
 312         os_memset(&preauth_test, 0, sizeof(preauth_test));
 313
 314         wpa_debug_level = 0;
 315         wpa_debug_show_keys = 1;
 316
 317         if (argc != 4) {
 318                 printf("usage: preauth_test <conf> <target MAC address> "
 319                        "<ifname>\n");
 320                 return -1;
 321         }
 322
 323         if (hwaddr_aton(argv[2], bssid)) {
 324                 printf("Failed to parse target address '%s'.\n", argv[2]);
 325                 return -1;
 326         }
 327
 328         if (eap_peer_register_methods()) {
 329                 wpa_printf(MSG_ERROR, "Failed to register EAP methods");
 330                 return -1;
 331         }
 332
 333         if (eloop_init(&wpa_s)) {
 334                 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
 335                 return -1;
 336         }
 337
 338         os_memset(&wpa_s, 0, sizeof(wpa_s));
 339         wpa_s.conf = wpa_config_read(argv[1]);
 340         if (wpa_s.conf == NULL) {
 341                 printf("Failed to parse configuration file '%s'.\n", argv[1]);
 342                 return -1;
 343         }
 344         if (wpa_s.conf->ssid == NULL) {
 345                 printf("No networks defined.\n");
 346                 return -1;
 347         }
 348
 349         wpa_init_conf(&wpa_s, argv[3]);
 350         wpa_s.ctrl_iface = wpa_supplicant_ctrl_iface_init(&wpa_s);
 351         if (wpa_s.ctrl_iface == NULL) {
 352                 printf("Failed to initialize control interface '%s'.\n"
 353                        "You may have another preauth_test process already "
 354                        "running or the file was\n"
 355                        "left by an unclean termination of preauth_test in "
 356                        "which case you will need\n"
 357                        "to manually remove this file before starting "
 358                        "preauth_test again.\n",
 359                        wpa_s.conf->ctrl_interface);
 360                 return -1;
 361         }
 362         if (wpa_supplicant_scard_init(&wpa_s, wpa_s.conf->ssid))
 363                 return -1;
 364
 365         if (rsn_preauth_init(wpa_s.wpa, bssid, wpa_s.conf->ssid))
 366                 return -1;
 367
 368         eloop_register_timeout(30, 0, eapol_test_timeout, &preauth_test, NULL);
 369         eloop_register_timeout(0, 100000, eapol_test_poll, &wpa_s, NULL);
 370         eloop_register_signal_terminate(eapol_test_terminate, NULL);
 371         eloop_register_signal_reconfig(eapol_test_terminate, NULL);
 372         eloop_run();
 373
 374         if (preauth_test.auth_timed_out)
 375                 ret = -2;
 376         else {
 377                 ret = pmksa_cache_set_current(wpa_s.wpa, NULL, bssid, NULL, 0)
 378                         ? 0 : -3;
 379         }
 380
 381         test_eapol_clean(&wpa_s);
 382
 383         eap_peer_unregister_methods();
 384
 385         eloop_destroy();
 386
 387         os_program_deinit();
 388
 389         return ret;
 390 }