dist/wpa/wpa_supplicant/tests/test_wpa.c

   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
  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
  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
  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
  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
  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
 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
 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
 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
 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
 178 static void supp_cancel_scan(void *ctx)
 179 {
 180         wpa_printf(MSG_DEBUG, "SUPP: %s", __func__);
 181 }
 182
 183
 184 static void supp_cancel_auth_timeout(void *ctx)
 185 {
 186         wpa_printf(MSG_DEBUG, "SUPP: %s", __func__);
 187 }
 188
 189
 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
 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
 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
 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
 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
 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
 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
 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
 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 }