dist/wpa/src/tls/tlsv1_client.c

   1 /*
   2  * TLSv1 client (RFC 2246)
   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 "sha1.h"
  19 #include "tls.h"
  20 #include "tlsv1_common.h"
  21 #include "tlsv1_record.h"
  22 #include "tlsv1_client.h"
  23 #include "tlsv1_client_i.h"
  24
  25 /* TODO:
  26  * Support for a message fragmented across several records (RFC 2246, 6.2.1)
  27  */
  28
  29
  30 void tls_alert(struct tlsv1_client *conn, u8 level, u8 description)
  31 {
  32         conn->alert_level = level;
  33         conn->alert_description = description;
  34 }
  35
  36
  37 void tlsv1_client_free_dh(struct tlsv1_client *conn)
  38 {
  39         os_free(conn->dh_p);
  40         os_free(conn->dh_g);
  41         os_free(conn->dh_ys);
  42         conn->dh_p = conn->dh_g = conn->dh_ys = NULL;
  43 }
  44
  45
  46 int tls_derive_pre_master_secret(u8 *pre_master_secret)
  47 {
  48         WPA_PUT_BE16(pre_master_secret, TLS_VERSION);
  49         if (os_get_random(pre_master_secret + 2,
  50                           TLS_PRE_MASTER_SECRET_LEN - 2))
  51                 return -1;
  52         return 0;
  53 }
  54
  55
  56 int tls_derive_keys(struct tlsv1_client *conn,
  57                     const u8 *pre_master_secret, size_t pre_master_secret_len)
  58 {
  59         u8 seed[2 * TLS_RANDOM_LEN];
  60         u8 key_block[TLS_MAX_KEY_BLOCK_LEN];
  61         u8 *pos;
  62         size_t key_block_len;
  63
  64         if (pre_master_secret) {
  65                 wpa_hexdump_key(MSG_MSGDUMP, "TLSv1: pre_master_secret",
  66                                 pre_master_secret, pre_master_secret_len);
  67                 os_memcpy(seed, conn->client_random, TLS_RANDOM_LEN);
  68                 os_memcpy(seed + TLS_RANDOM_LEN, conn->server_random,
  69                           TLS_RANDOM_LEN);
  70                 if (tls_prf(pre_master_secret, pre_master_secret_len,
  71                             "master secret", seed, 2 * TLS_RANDOM_LEN,
  72                             conn->master_secret, TLS_MASTER_SECRET_LEN)) {
  73                         wpa_printf(MSG_DEBUG, "TLSv1: Failed to derive "
  74                                    "master_secret");
  75                         return -1;
  76                 }
  77                 wpa_hexdump_key(MSG_MSGDUMP, "TLSv1: master_secret",
  78                                 conn->master_secret, TLS_MASTER_SECRET_LEN);
  79         }
  80
  81         os_memcpy(seed, conn->server_random, TLS_RANDOM_LEN);
  82         os_memcpy(seed + TLS_RANDOM_LEN, conn->client_random, TLS_RANDOM_LEN);
  83         key_block_len = 2 * (conn->rl.hash_size + conn->rl.key_material_len +
  84                              conn->rl.iv_size);
  85         if (tls_prf(conn->master_secret, TLS_MASTER_SECRET_LEN,
  86                     "key expansion", seed, 2 * TLS_RANDOM_LEN,
  87                     key_block, key_block_len)) {
  88                 wpa_printf(MSG_DEBUG, "TLSv1: Failed to derive key_block");
  89                 return -1;
  90         }
  91         wpa_hexdump_key(MSG_MSGDUMP, "TLSv1: key_block",
  92                         key_block, key_block_len);
  93
  94         pos = key_block;
  95
  96         /* client_write_MAC_secret */
  97         os_memcpy(conn->rl.write_mac_secret, pos, conn->rl.hash_size);
  98         pos += conn->rl.hash_size;
  99         /* server_write_MAC_secret */
 100         os_memcpy(conn->rl.read_mac_secret, pos, conn->rl.hash_size);
 101         pos += conn->rl.hash_size;
 102
 103         /* client_write_key */
 104         os_memcpy(conn->rl.write_key, pos, conn->rl.key_material_len);
 105         pos += conn->rl.key_material_len;
 106         /* server_write_key */
 107         os_memcpy(conn->rl.read_key, pos, conn->rl.key_material_len);
 108         pos += conn->rl.key_material_len;
 109
 110         /* client_write_IV */
 111         os_memcpy(conn->rl.write_iv, pos, conn->rl.iv_size);
 112         pos += conn->rl.iv_size;
 113         /* server_write_IV */
 114         os_memcpy(conn->rl.read_iv, pos, conn->rl.iv_size);
 115         pos += conn->rl.iv_size;
 116
 117         return 0;
 118 }
 119
 120
 121 /**
 122  * tlsv1_client_handshake - Process TLS handshake
 123  * @conn: TLSv1 client connection data from tlsv1_client_init()
 124  * @in_data: Input data from TLS peer
 125  * @in_len: Input data length
 126  * @out_len: Length of the output buffer.
 127  * Returns: Pointer to output data, %NULL on failure
 128  */
 129 u8 * tlsv1_client_handshake(struct tlsv1_client *conn,
 130                             const u8 *in_data, size_t in_len,
 131                             size_t *out_len, u8 **appl_data,
 132                             size_t *appl_data_len)
 133 {
 134         const u8 *pos, *end;
 135         u8 *msg = NULL, *in_msg, *in_pos, *in_end, alert, ct;
 136         size_t in_msg_len;
 137         int no_appl_data;
 138
 139         if (conn->state == CLIENT_HELLO) {
 140                 if (in_len)
 141                         return NULL;
 142                 return tls_send_client_hello(conn, out_len);
 143         }
 144
 145         if (in_data == NULL || in_len == 0)
 146                 return NULL;
 147
 148         pos = in_data;
 149         end = in_data + in_len;
 150         in_msg = os_malloc(in_len);
 151         if (in_msg == NULL)
 152                 return NULL;
 153
 154         /* Each received packet may include multiple records */
 155         while (pos < end) {
 156                 in_msg_len = in_len;
 157                 if (tlsv1_record_receive(&conn->rl, pos, end - pos,
 158                                          in_msg, &in_msg_len, &alert)) {
 159                         wpa_printf(MSG_DEBUG, "TLSv1: Processing received "
 160                                    "record failed");
 161                         tls_alert(conn, TLS_ALERT_LEVEL_FATAL, alert);
 162                         goto failed;
 163                 }
 164                 ct = pos[0];
 165
 166                 in_pos = in_msg;
 167                 in_end = in_msg + in_msg_len;
 168
 169                 /* Each received record may include multiple messages of the
 170                  * same ContentType. */
 171                 while (in_pos < in_end) {
 172                         in_msg_len = in_end - in_pos;
 173                         if (tlsv1_client_process_handshake(conn, ct, in_pos,
 174                                                            &in_msg_len,
 175                                                            appl_data,
 176                                                            appl_data_len) < 0)
 177                                 goto failed;
 178                         in_pos += in_msg_len;
 179                 }
 180
 181                 pos += TLS_RECORD_HEADER_LEN + WPA_GET_BE16(pos + 3);
 182         }
 183
 184         os_free(in_msg);
 185         in_msg = NULL;
 186
 187         no_appl_data = appl_data == NULL || *appl_data == NULL;
 188         msg = tlsv1_client_handshake_write(conn, out_len, no_appl_data);
 189
 190 failed:
 191         os_free(in_msg);
 192         if (conn->alert_level) {
 193                 conn->state = FAILED;
 194                 os_free(msg);
 195                 msg = tlsv1_client_send_alert(conn, conn->alert_level,
 196                                               conn->alert_description,
 197                                               out_len);
 198         } else if (msg == NULL) {
 199                 msg = os_zalloc(1);
 200                 *out_len = 0;
 201         }
 202
 203         return msg;
 204 }
 205
 206
 207 /**
 208  * tlsv1_client_encrypt - Encrypt data into TLS tunnel
 209  * @conn: TLSv1 client connection data from tlsv1_client_init()
 210  * @in_data: Pointer to plaintext data to be encrypted
 211  * @in_len: Input buffer length
 212  * @out_data: Pointer to output buffer (encrypted TLS data)
 213  * @out_len: Maximum out_data length
 214  * Returns: Number of bytes written to out_data, -1 on failure
 215  *
 216  * This function is used after TLS handshake has been completed successfully to
 217  * send data in the encrypted tunnel.
 218  */
 219 int tlsv1_client_encrypt(struct tlsv1_client *conn,
 220                          const u8 *in_data, size_t in_len,
 221                          u8 *out_data, size_t out_len)
 222 {
 223         size_t rlen;
 224
 225         wpa_hexdump_key(MSG_MSGDUMP, "TLSv1: Plaintext AppData",
 226                         in_data, in_len);
 227
 228         os_memcpy(out_data + TLS_RECORD_HEADER_LEN, in_data, in_len);
 229
 230         if (tlsv1_record_send(&conn->rl, TLS_CONTENT_TYPE_APPLICATION_DATA,
 231                               out_data, out_len, in_len, &rlen) < 0) {
 232                 wpa_printf(MSG_DEBUG, "TLSv1: Failed to create a record");
 233                 tls_alert(conn, TLS_ALERT_LEVEL_FATAL,
 234                           TLS_ALERT_INTERNAL_ERROR);
 235                 return -1;
 236         }
 237
 238         return rlen;
 239 }
 240
 241
 242 /**
 243  * tlsv1_client_decrypt - Decrypt data from TLS tunnel
 244  * @conn: TLSv1 client connection data from tlsv1_client_init()
 245  * @in_data: Pointer to input buffer (encrypted TLS data)
 246  * @in_len: Input buffer length
 247  * @out_data: Pointer to output buffer (decrypted data from TLS tunnel)
 248  * @out_len: Maximum out_data length
 249  * Returns: Number of bytes written to out_data, -1 on failure
 250  *
 251  * This function is used after TLS handshake has been completed successfully to
 252  * receive data from the encrypted tunnel.
 253  */
 254 int tlsv1_client_decrypt(struct tlsv1_client *conn,
 255                          const u8 *in_data, size_t in_len,
 256                          u8 *out_data, size_t out_len)
 257 {
 258         const u8 *in_end, *pos;
 259         int res;
 260         u8 alert, *out_end, *out_pos;
 261         size_t olen;
 262
 263         pos = in_data;
 264         in_end = in_data + in_len;
 265         out_pos = out_data;
 266         out_end = out_data + out_len;
 267
 268         while (pos < in_end) {
 269                 if (pos[0] != TLS_CONTENT_TYPE_APPLICATION_DATA) {
 270                         wpa_printf(MSG_DEBUG, "TLSv1: Unexpected content type "
 271                                    "0x%x", pos[0]);
 272                         tls_alert(conn, TLS_ALERT_LEVEL_FATAL,
 273                                   TLS_ALERT_UNEXPECTED_MESSAGE);
 274                         return -1;
 275                 }
 276
 277                 olen = out_end - out_pos;
 278                 res = tlsv1_record_receive(&conn->rl, pos, in_end - pos,
 279                                            out_pos, &olen, &alert);
 280                 if (res < 0) {
 281                         wpa_printf(MSG_DEBUG, "TLSv1: Record layer processing "
 282                                    "failed");
 283                         tls_alert(conn, TLS_ALERT_LEVEL_FATAL, alert);
 284                         return -1;
 285                 }
 286                 out_pos += olen;
 287                 if (out_pos > out_end) {
 288                         wpa_printf(MSG_DEBUG, "TLSv1: Buffer not large enough "
 289                                    "for processing the received record");
 290                         tls_alert(conn, TLS_ALERT_LEVEL_FATAL,
 291                                   TLS_ALERT_INTERNAL_ERROR);
 292                         return -1;
 293                 }
 294
 295                 pos += TLS_RECORD_HEADER_LEN + WPA_GET_BE16(pos + 3);
 296         }
 297
 298         return out_pos - out_data;
 299 }
 300
 301
 302 /**
 303  * tlsv1_client_global_init - Initialize TLSv1 client
 304  * Returns: 0 on success, -1 on failure
 305  *
 306  * This function must be called before using any other TLSv1 client functions.
 307  */
 308 int tlsv1_client_global_init(void)
 309 {
 310         return crypto_global_init();
 311 }
 312
 313
 314 /**
 315  * tlsv1_client_global_deinit - Deinitialize TLSv1 client
 316  *
 317  * This function can be used to deinitialize the TLSv1 client that was
 318  * initialized by calling tlsv1_client_global_init(). No TLSv1 client functions
 319  * can be called after this before calling tlsv1_client_global_init() again.
 320  */
 321 void tlsv1_client_global_deinit(void)
 322 {
 323         crypto_global_deinit();
 324 }
 325
 326
 327 /**
 328  * tlsv1_client_init - Initialize TLSv1 client connection
 329  * Returns: Pointer to TLSv1 client connection data or %NULL on failure
 330  */
 331 struct tlsv1_client * tlsv1_client_init(void)
 332 {
 333         struct tlsv1_client *conn;
 334         size_t count;
 335         u16 *suites;
 336
 337         conn = os_zalloc(sizeof(*conn));
 338         if (conn == NULL)
 339                 return NULL;
 340
 341         conn->state = CLIENT_HELLO;
 342
 343         if (tls_verify_hash_init(&conn->verify) < 0) {
 344                 wpa_printf(MSG_DEBUG, "TLSv1: Failed to initialize verify "
 345                            "hash");
 346                 os_free(conn);
 347                 return NULL;
 348         }
 349
 350         count = 0;
 351         suites = conn->cipher_suites;
 352 #ifndef CONFIG_CRYPTO_INTERNAL
 353         suites[count++] = TLS_RSA_WITH_AES_256_CBC_SHA;
 354 #endif /* CONFIG_CRYPTO_INTERNAL */
 355         suites[count++] = TLS_RSA_WITH_AES_128_CBC_SHA;
 356         suites[count++] = TLS_RSA_WITH_3DES_EDE_CBC_SHA;
 357         suites[count++] = TLS_RSA_WITH_RC4_128_SHA;
 358         suites[count++] = TLS_RSA_WITH_RC4_128_MD5;
 359         conn->num_cipher_suites = count;
 360
 361         return conn;
 362 }
 363
 364
 365 /**
 366  * tlsv1_client_deinit - Deinitialize TLSv1 client connection
 367  * @conn: TLSv1 client connection data from tlsv1_client_init()
 368  */
 369 void tlsv1_client_deinit(struct tlsv1_client *conn)
 370 {
 371         crypto_public_key_free(conn->server_rsa_key);
 372         tlsv1_record_set_cipher_suite(&conn->rl, TLS_NULL_WITH_NULL_NULL);
 373         tlsv1_record_change_write_cipher(&conn->rl);
 374         tlsv1_record_change_read_cipher(&conn->rl);
 375         tls_verify_hash_free(&conn->verify);
 376         os_free(conn->client_hello_ext);
 377         tlsv1_client_free_dh(conn);
 378         tlsv1_cred_free(conn->cred);
 379         os_free(conn);
 380 }
 381
 382
 383 /**
 384  * tlsv1_client_established - Check whether connection has been established
 385  * @conn: TLSv1 client connection data from tlsv1_client_init()
 386  * Returns: 1 if connection is established, 0 if not
 387  */
 388 int tlsv1_client_established(struct tlsv1_client *conn)
 389 {
 390         return conn->state == ESTABLISHED;
 391 }
 392
 393
 394 /**
 395  * tlsv1_client_prf - Use TLS-PRF to derive keying material
 396  * @conn: TLSv1 client connection data from tlsv1_client_init()
 397  * @label: Label (e.g., description of the key) for PRF
 398  * @server_random_first: seed is 0 = client_random|server_random,
 399  * 1 = server_random|client_random
 400  * @out: Buffer for output data from TLS-PRF
 401  * @out_len: Length of the output buffer
 402  * Returns: 0 on success, -1 on failure
 403  */
 404 int tlsv1_client_prf(struct tlsv1_client *conn, const char *label,
 405                      int server_random_first, u8 *out, size_t out_len)
 406 {
 407         u8 seed[2 * TLS_RANDOM_LEN];
 408
 409         if (conn->state != ESTABLISHED)
 410                 return -1;
 411
 412         if (server_random_first) {
 413                 os_memcpy(seed, conn->server_random, TLS_RANDOM_LEN);
 414                 os_memcpy(seed + TLS_RANDOM_LEN, conn->client_random,
 415                           TLS_RANDOM_LEN);
 416         } else {
 417                 os_memcpy(seed, conn->client_random, TLS_RANDOM_LEN);
 418                 os_memcpy(seed + TLS_RANDOM_LEN, conn->server_random,
 419                           TLS_RANDOM_LEN);
 420         }
 421
 422         return tls_prf(conn->master_secret, TLS_MASTER_SECRET_LEN,
 423                        label, seed, 2 * TLS_RANDOM_LEN, out, out_len);
 424 }
 425
 426
 427 /**
 428  * tlsv1_client_get_cipher - Get current cipher name
 429  * @conn: TLSv1 client connection data from tlsv1_client_init()
 430  * @buf: Buffer for the cipher name
 431  * @buflen: buf size
 432  * Returns: 0 on success, -1 on failure
 433  *
 434  * Get the name of the currently used cipher.
 435  */
 436 int tlsv1_client_get_cipher(struct tlsv1_client *conn, char *buf,
 437                             size_t buflen)
 438 {
 439         char *cipher;
 440
 441         switch (conn->rl.cipher_suite) {
 442         case TLS_RSA_WITH_RC4_128_MD5:
 443                 cipher = "RC4-MD5";
 444                 break;
 445         case TLS_RSA_WITH_RC4_128_SHA:
 446                 cipher = "RC4-SHA";
 447                 break;
 448         case TLS_RSA_WITH_DES_CBC_SHA:
 449                 cipher = "DES-CBC-SHA";
 450                 break;
 451         case TLS_RSA_WITH_3DES_EDE_CBC_SHA:
 452                 cipher = "DES-CBC3-SHA";
 453                 break;
 454         case TLS_DH_anon_WITH_AES_128_CBC_SHA:
 455                 cipher = "ADH-AES-128-SHA";
 456                 break;
 457         case TLS_RSA_WITH_AES_256_CBC_SHA:
 458                 cipher = "AES-256-SHA";
 459                 break;
 460         case TLS_RSA_WITH_AES_128_CBC_SHA:
 461                 cipher = "AES-128-SHA";
 462                 break;
 463         default:
 464                 return -1;
 465         }
 466
 467         if (os_strlcpy(buf, cipher, buflen) >= buflen)
 468                 return -1;
 469         return 0;
 470 }
 471
 472
 473 /**
 474  * tlsv1_client_shutdown - Shutdown TLS connection
 475  * @conn: TLSv1 client connection data from tlsv1_client_init()
 476  * Returns: 0 on success, -1 on failure
 477  */
 478 int tlsv1_client_shutdown(struct tlsv1_client *conn)
 479 {
 480         conn->state = CLIENT_HELLO;
 481
 482         if (tls_verify_hash_init(&conn->verify) < 0) {
 483                 wpa_printf(MSG_DEBUG, "TLSv1: Failed to re-initialize verify "
 484                            "hash");
 485                 return -1;
 486         }
 487
 488         tlsv1_record_set_cipher_suite(&conn->rl, TLS_NULL_WITH_NULL_NULL);
 489         tlsv1_record_change_write_cipher(&conn->rl);
 490         tlsv1_record_change_read_cipher(&conn->rl);
 491
 492         conn->certificate_requested = 0;
 493         crypto_public_key_free(conn->server_rsa_key);
 494         conn->server_rsa_key = NULL;
 495         conn->session_resumed = 0;
 496
 497         return 0;
 498 }
 499
 500
 501 /**
 502  * tlsv1_client_resumed - Was session resumption used
 503  * @conn: TLSv1 client connection data from tlsv1_client_init()
 504  * Returns: 1 if current session used session resumption, 0 if not
 505  */
 506 int tlsv1_client_resumed(struct tlsv1_client *conn)
 507 {
 508         return !!conn->session_resumed;
 509 }
 510
 511
 512 /**
 513  * tlsv1_client_hello_ext - Set TLS extension for ClientHello
 514  * @conn: TLSv1 client connection data from tlsv1_client_init()
 515  * @ext_type: Extension type
 516  * @data: Extension payload (%NULL to remove extension)
 517  * @data_len: Extension payload length
 518  * Returns: 0 on success, -1 on failure
 519  */
 520 int tlsv1_client_hello_ext(struct tlsv1_client *conn, int ext_type,
 521                            const u8 *data, size_t data_len)
 522 {
 523         u8 *pos;
 524
 525         conn->session_ticket_included = 0;
 526         os_free(conn->client_hello_ext);
 527         conn->client_hello_ext = NULL;
 528         conn->client_hello_ext_len = 0;
 529
 530         if (data == NULL || data_len == 0)
 531                 return 0;
 532
 533         pos = conn->client_hello_ext = os_malloc(6 + data_len);
 534         if (pos == NULL)
 535                 return -1;
 536
 537         WPA_PUT_BE16(pos, 4 + data_len);
 538         pos += 2;
 539         WPA_PUT_BE16(pos, ext_type);
 540         pos += 2;
 541         WPA_PUT_BE16(pos, data_len);
 542         pos += 2;
 543         os_memcpy(pos, data, data_len);
 544         conn->client_hello_ext_len = 6 + data_len;
 545
 546         if (ext_type == TLS_EXT_PAC_OPAQUE) {
 547                 conn->session_ticket_included = 1;
 548                 wpa_printf(MSG_DEBUG, "TLSv1: Using session ticket");
 549         }
 550
 551         return 0;
 552 }
 553
 554
 555 /**
 556  * tlsv1_client_get_keys - Get master key and random data from TLS connection
 557  * @conn: TLSv1 client connection data from tlsv1_client_init()
 558  * @keys: Structure of key/random data (filled on success)
 559  * Returns: 0 on success, -1 on failure
 560  */
 561 int tlsv1_client_get_keys(struct tlsv1_client *conn, struct tls_keys *keys)
 562 {
 563         os_memset(keys, 0, sizeof(*keys));
 564         if (conn->state == CLIENT_HELLO)
 565                 return -1;
 566
 567         keys->client_random = conn->client_random;
 568         keys->client_random_len = TLS_RANDOM_LEN;
 569
 570         if (conn->state != SERVER_HELLO) {
 571                 keys->server_random = conn->server_random;
 572                 keys->server_random_len = TLS_RANDOM_LEN;
 573                 keys->master_key = conn->master_secret;
 574                 keys->master_key_len = TLS_MASTER_SECRET_LEN;
 575         }
 576
 577         return 0;
 578 }
 579
 580
 581 /**
 582  * tlsv1_client_get_keyblock_size - Get TLS key_block size
 583  * @conn: TLSv1 client connection data from tlsv1_client_init()
 584  * Returns: Size of the key_block for the negotiated cipher suite or -1 on
 585  * failure
 586  */
 587 int tlsv1_client_get_keyblock_size(struct tlsv1_client *conn)
 588 {
 589         if (conn->state == CLIENT_HELLO || conn->state == SERVER_HELLO)
 590                 return -1;
 591
 592         return 2 * (conn->rl.hash_size + conn->rl.key_material_len +
 593                     conn->rl.iv_size);
 594 }
 595
 596
 597 /**
 598  * tlsv1_client_set_cipher_list - Configure acceptable cipher suites
 599  * @conn: TLSv1 client connection data from tlsv1_client_init()
 600  * @ciphers: Zero (TLS_CIPHER_NONE) terminated list of allowed ciphers
 601  * (TLS_CIPHER_*).
 602  * Returns: 0 on success, -1 on failure
 603  */
 604 int tlsv1_client_set_cipher_list(struct tlsv1_client *conn, u8 *ciphers)
 605 {
 606 #ifdef EAP_FAST
 607         size_t count;
 608         u16 *suites;
 609
 610         /* TODO: implement proper configuration of cipher suites */
 611         if (ciphers[0] == TLS_CIPHER_ANON_DH_AES128_SHA) {
 612                 count = 0;
 613                 suites = conn->cipher_suites;
 614 #ifndef CONFIG_CRYPTO_INTERNAL
 615                 suites[count++] = TLS_DH_anon_WITH_AES_256_CBC_SHA;
 616 #endif /* CONFIG_CRYPTO_INTERNAL */
 617                 suites[count++] = TLS_DH_anon_WITH_AES_128_CBC_SHA;
 618                 suites[count++] = TLS_DH_anon_WITH_3DES_EDE_CBC_SHA;
 619                 suites[count++] = TLS_DH_anon_WITH_RC4_128_MD5;
 620                 suites[count++] = TLS_DH_anon_WITH_DES_CBC_SHA;
 621                 conn->num_cipher_suites = count;
 622         }
 623
 624         return 0;
 625 #else /* EAP_FAST */
 626         return -1;
 627 #endif /* EAP_FAST */
 628 }
 629
 630
 631 /**
 632  * tlsv1_client_set_cred - Set client credentials
 633  * @conn: TLSv1 client connection data from tlsv1_client_init()
 634  * @cred: Credentials from tlsv1_cred_alloc()
 635  * Returns: 0 on success, -1 on failure
 636  *
 637  * On success, the client takes ownership of the credentials block and caller
 638  * must not free it. On failure, caller is responsible for freeing the
 639  * credential block.
 640  */
 641 int tlsv1_client_set_cred(struct tlsv1_client *conn,
 642                           struct tlsv1_credentials *cred)
 643 {
 644         tlsv1_cred_free(conn->cred);
 645         conn->cred = cred;
 646         return 0;
 647 }
 648
 649
 650 void tlsv1_client_set_session_ticket_cb(struct tlsv1_client *conn,
 651                                         tlsv1_client_session_ticket_cb cb,
 652                                         void *ctx)
 653 {
 654         wpa_printf(MSG_DEBUG, "TLSv1: SessionTicket callback set %p (ctx %p)",
 655                    cb, ctx);
 656         conn->session_ticket_cb = cb;
 657         conn->session_ticket_cb_ctx = ctx;
 658 }