1/* 2 * TLS interface functions and an internal TLS implementation 3 * Copyright (c) 2004-2011, 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 * This file interface functions for hostapd/wpa_supplicant to use the 9 * integrated TLSv1 implementation. 10 */ 11 12#include "includes.h" 13 14#include "common.h" 15#include "tls.h" 16#include "tls/tlsv1_client.h" 17#include "tls/tlsv1_server.h" 18 19 20static int tls_ref_count = 0; 21 22struct tls_global { 23 int server; 24 struct tlsv1_credentials *server_cred; 25 int check_crl; 26 27 void (*event_cb)(void *ctx, enum tls_event ev, 28 union tls_event_data *data); 29 void *cb_ctx; 30 int cert_in_cb; 31}; 32 33struct tls_connection { 34 struct tlsv1_client *client; 35 struct tlsv1_server *server; 36 struct tls_global *global; 37}; 38 39 40void * tls_init(const struct tls_config *conf) 41{ 42 struct tls_global *global; 43 44 if (tls_ref_count == 0) { 45#ifdef CONFIG_TLS_INTERNAL_CLIENT 46 if (tlsv1_client_global_init()) 47 return NULL; 48#endif /* CONFIG_TLS_INTERNAL_CLIENT */ 49#ifdef CONFIG_TLS_INTERNAL_SERVER 50 if (tlsv1_server_global_init()) 51 return NULL; 52#endif /* CONFIG_TLS_INTERNAL_SERVER */ 53 } 54 tls_ref_count++; 55 56 global = os_zalloc(sizeof(*global)); 57 if (global == NULL) 58 return NULL; 59 if (conf) { 60 global->event_cb = conf->event_cb; 61 global->cb_ctx = conf->cb_ctx; 62 global->cert_in_cb = conf->cert_in_cb; 63 } 64 65 return global; 66} 67 68void tls_deinit(void *ssl_ctx) 69{ 70 struct tls_global *global = ssl_ctx; 71 tls_ref_count--; 72 if (tls_ref_count == 0) { 73#ifdef CONFIG_TLS_INTERNAL_CLIENT 74 tlsv1_client_global_deinit(); 75#endif /* CONFIG_TLS_INTERNAL_CLIENT */ 76#ifdef CONFIG_TLS_INTERNAL_SERVER 77 tlsv1_server_global_deinit(); 78#endif /* CONFIG_TLS_INTERNAL_SERVER */ 79 } 80#ifdef CONFIG_TLS_INTERNAL_SERVER 81 tlsv1_cred_free(global->server_cred); 82#endif /* CONFIG_TLS_INTERNAL_SERVER */ 83 os_free(global); 84} 85 86 87int tls_get_errors(void *tls_ctx) 88{ 89 return 0; 90} 91 92 93struct tls_connection * tls_connection_init(void *tls_ctx) 94{ 95 struct tls_connection *conn; 96 struct tls_global *global = tls_ctx; 97 98 conn = os_zalloc(sizeof(*conn)); 99 if (conn == NULL) 100 return NULL; 101 conn->global = global; 102 103#ifdef CONFIG_TLS_INTERNAL_CLIENT 104 if (!global->server) { 105 conn->client = tlsv1_client_init(); 106 if (conn->client == NULL) { 107 os_free(conn); 108 return NULL; 109 } 110 tlsv1_client_set_cb(conn->client, global->event_cb, 111 global->cb_ctx, global->cert_in_cb); 112 } 113#endif /* CONFIG_TLS_INTERNAL_CLIENT */ 114#ifdef CONFIG_TLS_INTERNAL_SERVER 115 if (global->server) { 116 conn->server = tlsv1_server_init(global->server_cred); 117 if (conn->server == NULL) { 118 os_free(conn); 119 return NULL; 120 } 121 } 122#endif /* CONFIG_TLS_INTERNAL_SERVER */ 123 124 return conn; 125} 126 127 128#ifdef CONFIG_TESTING_OPTIONS 129#ifdef CONFIG_TLS_INTERNAL_SERVER 130void tls_connection_set_test_flags(struct tls_connection *conn, u32 flags) 131{ 132 if (conn->server) 133 tlsv1_server_set_test_flags(conn->server, flags); 134} 135#endif /* CONFIG_TLS_INTERNAL_SERVER */ 136#endif /* CONFIG_TESTING_OPTIONS */ 137 138 139void tls_connection_set_log_cb(struct tls_connection *conn, 140 void (*log_cb)(void *ctx, const char *msg), 141 void *ctx) 142{ 143#ifdef CONFIG_TLS_INTERNAL_SERVER 144 if (conn->server) 145 tlsv1_server_set_log_cb(conn->server, log_cb, ctx); 146#endif /* CONFIG_TLS_INTERNAL_SERVER */ 147} 148 149 150void tls_connection_deinit(void *tls_ctx, struct tls_connection *conn) 151{ 152 if (conn == NULL) 153 return; 154#ifdef CONFIG_TLS_INTERNAL_CLIENT 155 if (conn->client) 156 tlsv1_client_deinit(conn->client); 157#endif /* CONFIG_TLS_INTERNAL_CLIENT */ 158#ifdef CONFIG_TLS_INTERNAL_SERVER 159 if (conn->server) 160 tlsv1_server_deinit(conn->server); 161#endif /* CONFIG_TLS_INTERNAL_SERVER */ 162 os_free(conn); 163} 164 165 166int tls_connection_established(void *tls_ctx, struct tls_connection *conn) 167{ 168#ifdef CONFIG_TLS_INTERNAL_CLIENT 169 if (conn->client) 170 return tlsv1_client_established(conn->client); 171#endif /* CONFIG_TLS_INTERNAL_CLIENT */ 172#ifdef CONFIG_TLS_INTERNAL_SERVER 173 if (conn->server) 174 return tlsv1_server_established(conn->server); 175#endif /* CONFIG_TLS_INTERNAL_SERVER */ 176 return 0; 177} 178 179 180int tls_connection_shutdown(void *tls_ctx, struct tls_connection *conn) 181{ 182#ifdef CONFIG_TLS_INTERNAL_CLIENT 183 if (conn->client) 184 return tlsv1_client_shutdown(conn->client); 185#endif /* CONFIG_TLS_INTERNAL_CLIENT */ 186#ifdef CONFIG_TLS_INTERNAL_SERVER 187 if (conn->server) 188 return tlsv1_server_shutdown(conn->server); 189#endif /* CONFIG_TLS_INTERNAL_SERVER */ 190 return -1; 191} 192 193 194int tls_connection_set_params(void *tls_ctx, struct tls_connection *conn, 195 const struct tls_connection_params *params) 196{ 197#ifdef CONFIG_TLS_INTERNAL_CLIENT 198 struct tlsv1_credentials *cred; 199 200 if (conn->client == NULL) 201 return -1; 202 203 if (params->flags & TLS_CONN_EXT_CERT_CHECK) { 204 wpa_printf(MSG_INFO, 205 "TLS: tls_ext_cert_check=1 not supported"); 206 return -1; 207 } 208 209 cred = tlsv1_cred_alloc(); 210 if (cred == NULL) 211 return -1; 212 213 if (params->subject_match) { 214 wpa_printf(MSG_INFO, "TLS: subject_match not supported"); 215 tlsv1_cred_free(cred); 216 return -1; 217 } 218 219 if (params->altsubject_match) { 220 wpa_printf(MSG_INFO, "TLS: altsubject_match not supported"); 221 tlsv1_cred_free(cred); 222 return -1; 223 } 224 225 if (params->suffix_match) { 226 wpa_printf(MSG_INFO, "TLS: suffix_match not supported"); 227 tlsv1_cred_free(cred); 228 return -1; 229 } 230 231 if (params->domain_match) { 232 wpa_printf(MSG_INFO, "TLS: domain_match not supported"); 233 tlsv1_cred_free(cred); 234 return -1; 235 } 236 237 if (params->openssl_ciphers) { 238 wpa_printf(MSG_INFO, "TLS: openssl_ciphers not supported"); 239 tlsv1_cred_free(cred); 240 return -1; 241 } 242 243 if (tlsv1_set_ca_cert(cred, params->ca_cert, 244 params->ca_cert_blob, params->ca_cert_blob_len, 245 params->ca_path)) { 246 wpa_printf(MSG_INFO, "TLS: Failed to configure trusted CA " 247 "certificates"); 248 tlsv1_cred_free(cred); 249 return -1; 250 } 251 252 if (tlsv1_set_cert(cred, params->client_cert, 253 params->client_cert_blob, 254 params->client_cert_blob_len)) { 255 wpa_printf(MSG_INFO, "TLS: Failed to configure client " 256 "certificate"); 257 tlsv1_cred_free(cred); 258 return -1; 259 } 260 261 if (tlsv1_set_private_key(cred, params->private_key, 262 params->private_key_passwd, 263 params->private_key_blob, 264 params->private_key_blob_len)) { 265 wpa_printf(MSG_INFO, "TLS: Failed to load private key"); 266 tlsv1_cred_free(cred); 267 return -1; 268 } 269 270 if (tlsv1_set_dhparams(cred, params->dh_file, params->dh_blob, 271 params->dh_blob_len)) { 272 wpa_printf(MSG_INFO, "TLS: Failed to load DH parameters"); 273 tlsv1_cred_free(cred); 274 return -1; 275 } 276 277 if (tlsv1_client_set_cred(conn->client, cred) < 0) { 278 tlsv1_cred_free(cred); 279 return -1; 280 } 281 282 tlsv1_client_set_flags(conn->client, params->flags); 283 284 return 0; 285#else /* CONFIG_TLS_INTERNAL_CLIENT */ 286 return -1; 287#endif /* CONFIG_TLS_INTERNAL_CLIENT */ 288} 289 290 291int tls_global_set_params(void *tls_ctx, 292 const struct tls_connection_params *params) 293{ 294#ifdef CONFIG_TLS_INTERNAL_SERVER 295 struct tls_global *global = tls_ctx; 296 struct tlsv1_credentials *cred; 297 298 /* Currently, global parameters are only set when running in server 299 * mode. */ 300 global->server = 1; 301 tlsv1_cred_free(global->server_cred); 302 global->server_cred = cred = tlsv1_cred_alloc(); 303 if (cred == NULL) 304 return -1; 305 306 if (tlsv1_set_ca_cert(cred, params->ca_cert, params->ca_cert_blob, 307 params->ca_cert_blob_len, params->ca_path)) { 308 wpa_printf(MSG_INFO, "TLS: Failed to configure trusted CA " 309 "certificates"); 310 return -1; 311 } 312 313 if (tlsv1_set_cert(cred, params->client_cert, params->client_cert_blob, 314 params->client_cert_blob_len)) { 315 wpa_printf(MSG_INFO, "TLS: Failed to configure server " 316 "certificate"); 317 return -1; 318 } 319 320 if (tlsv1_set_private_key(cred, params->private_key, 321 params->private_key_passwd, 322 params->private_key_blob, 323 params->private_key_blob_len)) { 324 wpa_printf(MSG_INFO, "TLS: Failed to load private key"); 325 return -1; 326 } 327 328 if (tlsv1_set_dhparams(cred, params->dh_file, params->dh_blob, 329 params->dh_blob_len)) { 330 wpa_printf(MSG_INFO, "TLS: Failed to load DH parameters"); 331 return -1; 332 } 333 334 if (params->ocsp_stapling_response) 335 cred->ocsp_stapling_response = 336 os_strdup(params->ocsp_stapling_response); 337 if (params->ocsp_stapling_response_multi) 338 cred->ocsp_stapling_response_multi = 339 os_strdup(params->ocsp_stapling_response_multi); 340 341 return 0; 342#else /* CONFIG_TLS_INTERNAL_SERVER */ 343 return -1; 344#endif /* CONFIG_TLS_INTERNAL_SERVER */ 345} 346 347 348int tls_global_set_verify(void *tls_ctx, int check_crl) 349{ 350 struct tls_global *global = tls_ctx; 351 global->check_crl = check_crl; 352 return 0; 353} 354 355 356int tls_connection_set_verify(void *tls_ctx, struct tls_connection *conn, 357 int verify_peer, unsigned int flags, 358 const u8 *session_ctx, size_t session_ctx_len) 359{ 360#ifdef CONFIG_TLS_INTERNAL_SERVER 361 if (conn->server) 362 return tlsv1_server_set_verify(conn->server, verify_peer); 363#endif /* CONFIG_TLS_INTERNAL_SERVER */ 364 return -1; 365} 366 367 368int tls_connection_get_random(void *tls_ctx, struct tls_connection *conn, 369 struct tls_random *data) 370{ 371#ifdef CONFIG_TLS_INTERNAL_CLIENT 372 if (conn->client) 373 return tlsv1_client_get_random(conn->client, data); 374#endif /* CONFIG_TLS_INTERNAL_CLIENT */ 375#ifdef CONFIG_TLS_INTERNAL_SERVER 376 if (conn->server) 377 return tlsv1_server_get_random(conn->server, data); 378#endif /* CONFIG_TLS_INTERNAL_SERVER */ 379 return -1; 380} 381 382 383static int tls_get_keyblock_size(struct tls_connection *conn) 384{ 385#ifdef CONFIG_TLS_INTERNAL_CLIENT 386 if (conn->client) 387 return tlsv1_client_get_keyblock_size(conn->client); 388#endif /* CONFIG_TLS_INTERNAL_CLIENT */ 389#ifdef CONFIG_TLS_INTERNAL_SERVER 390 if (conn->server) 391 return tlsv1_server_get_keyblock_size(conn->server); 392#endif /* CONFIG_TLS_INTERNAL_SERVER */ 393 return -1; 394} 395 396 397int tls_connection_prf(void *tls_ctx, struct tls_connection *conn, 398 const char *label, int server_random_first, 399 int skip_keyblock, u8 *out, size_t out_len) 400{ 401 int ret = -1, skip = 0; 402 u8 *tmp_out = NULL; 403 u8 *_out = out; 404 405 if (skip_keyblock) { 406 skip = tls_get_keyblock_size(conn); 407 if (skip < 0) 408 return -1; 409 tmp_out = os_malloc(skip + out_len); 410 if (!tmp_out) 411 return -1; 412 _out = tmp_out; 413 } 414 415#ifdef CONFIG_TLS_INTERNAL_CLIENT 416 if (conn->client) { 417 ret = tlsv1_client_prf(conn->client, label, 418 server_random_first, 419 _out, skip + out_len); 420 } 421#endif /* CONFIG_TLS_INTERNAL_CLIENT */ 422#ifdef CONFIG_TLS_INTERNAL_SERVER 423 if (conn->server) { 424 ret = tlsv1_server_prf(conn->server, label, 425 server_random_first, 426 _out, skip + out_len); 427 } 428#endif /* CONFIG_TLS_INTERNAL_SERVER */ 429 if (ret == 0 && skip_keyblock) 430 os_memcpy(out, _out + skip, out_len); 431 bin_clear_free(tmp_out, skip); 432 433 return ret; 434} 435 436 437struct wpabuf * tls_connection_handshake(void *tls_ctx, 438 struct tls_connection *conn, 439 const struct wpabuf *in_data, 440 struct wpabuf **appl_data) 441{ 442 return tls_connection_handshake2(tls_ctx, conn, in_data, appl_data, 443 NULL); 444} 445 446 447struct wpabuf * tls_connection_handshake2(void *tls_ctx, 448 struct tls_connection *conn, 449 const struct wpabuf *in_data, 450 struct wpabuf **appl_data, 451 int *need_more_data) 452{ 453#ifdef CONFIG_TLS_INTERNAL_CLIENT 454 u8 *res, *ad; 455 size_t res_len, ad_len; 456 struct wpabuf *out; 457 458 if (conn->client == NULL) 459 return NULL; 460 461 ad = NULL; 462 res = tlsv1_client_handshake(conn->client, 463 in_data ? wpabuf_head(in_data) : NULL, 464 in_data ? wpabuf_len(in_data) : 0, 465 &res_len, &ad, &ad_len, need_more_data); 466 if (res == NULL) 467 return NULL; 468 out = wpabuf_alloc_ext_data(res, res_len); 469 if (out == NULL) { 470 os_free(res); 471 os_free(ad); 472 return NULL; 473 } 474 if (appl_data) { 475 if (ad) { 476 *appl_data = wpabuf_alloc_ext_data(ad, ad_len); 477 if (*appl_data == NULL) 478 os_free(ad); 479 } else 480 *appl_data = NULL; 481 } else 482 os_free(ad); 483 484 return out; 485#else /* CONFIG_TLS_INTERNAL_CLIENT */ 486 return NULL; 487#endif /* CONFIG_TLS_INTERNAL_CLIENT */ 488} 489 490 491struct wpabuf * tls_connection_server_handshake(void *tls_ctx, 492 struct tls_connection *conn, 493 const struct wpabuf *in_data, 494 struct wpabuf **appl_data) 495{ 496#ifdef CONFIG_TLS_INTERNAL_SERVER 497 u8 *res; 498 size_t res_len; 499 struct wpabuf *out; 500 501 if (conn->server == NULL) 502 return NULL; 503 504 if (appl_data) 505 *appl_data = NULL; 506 507 res = tlsv1_server_handshake(conn->server, wpabuf_head(in_data), 508 wpabuf_len(in_data), &res_len); 509 if (res == NULL && tlsv1_server_established(conn->server)) 510 return wpabuf_alloc(0); 511 if (res == NULL) 512 return NULL; 513 out = wpabuf_alloc_ext_data(res, res_len); 514 if (out == NULL) { 515 os_free(res); 516 return NULL; 517 } 518 519 return out; 520#else /* CONFIG_TLS_INTERNAL_SERVER */ 521 return NULL; 522#endif /* CONFIG_TLS_INTERNAL_SERVER */ 523} 524 525 526struct wpabuf * tls_connection_encrypt(void *tls_ctx, 527 struct tls_connection *conn, 528 const struct wpabuf *in_data) 529{ 530#ifdef CONFIG_TLS_INTERNAL_CLIENT 531 if (conn->client) { 532 struct wpabuf *buf; 533 int res; 534 buf = wpabuf_alloc(wpabuf_len(in_data) + 300); 535 if (buf == NULL) 536 return NULL; 537 res = tlsv1_client_encrypt(conn->client, wpabuf_head(in_data), 538 wpabuf_len(in_data), 539 wpabuf_mhead(buf), 540 wpabuf_size(buf)); 541 if (res < 0) { 542 wpabuf_free(buf); 543 return NULL; 544 } 545 wpabuf_put(buf, res); 546 return buf; 547 } 548#endif /* CONFIG_TLS_INTERNAL_CLIENT */ 549#ifdef CONFIG_TLS_INTERNAL_SERVER 550 if (conn->server) { 551 struct wpabuf *buf; 552 int res; 553 buf = wpabuf_alloc(wpabuf_len(in_data) + 300); 554 if (buf == NULL) 555 return NULL; 556 res = tlsv1_server_encrypt(conn->server, wpabuf_head(in_data), 557 wpabuf_len(in_data), 558 wpabuf_mhead(buf), 559 wpabuf_size(buf)); 560 if (res < 0) { 561 wpabuf_free(buf); 562 return NULL; 563 } 564 wpabuf_put(buf, res); 565 return buf; 566 } 567#endif /* CONFIG_TLS_INTERNAL_SERVER */ 568 return NULL; 569} 570 571 572struct wpabuf * tls_connection_decrypt(void *tls_ctx, 573 struct tls_connection *conn, 574 const struct wpabuf *in_data) 575{ 576 return tls_connection_decrypt2(tls_ctx, conn, in_data, NULL); 577} 578 579 580struct wpabuf * tls_connection_decrypt2(void *tls_ctx, 581 struct tls_connection *conn, 582 const struct wpabuf *in_data, 583 int *need_more_data) 584{ 585 if (need_more_data) 586 *need_more_data = 0; 587 588#ifdef CONFIG_TLS_INTERNAL_CLIENT 589 if (conn->client) { 590 return tlsv1_client_decrypt(conn->client, wpabuf_head(in_data), 591 wpabuf_len(in_data), 592 need_more_data); 593 } 594#endif /* CONFIG_TLS_INTERNAL_CLIENT */ 595#ifdef CONFIG_TLS_INTERNAL_SERVER 596 if (conn->server) { 597 struct wpabuf *buf; 598 int res; 599 buf = wpabuf_alloc((wpabuf_len(in_data) + 500) * 3); 600 if (buf == NULL) 601 return NULL; 602 res = tlsv1_server_decrypt(conn->server, wpabuf_head(in_data), 603 wpabuf_len(in_data), 604 wpabuf_mhead(buf), 605 wpabuf_size(buf)); 606 if (res < 0) { 607 wpabuf_free(buf); 608 return NULL; 609 } 610 wpabuf_put(buf, res); 611 return buf; 612 } 613#endif /* CONFIG_TLS_INTERNAL_SERVER */ 614 return NULL; 615} 616 617 618int tls_connection_resumed(void *tls_ctx, struct tls_connection *conn) 619{ 620#ifdef CONFIG_TLS_INTERNAL_CLIENT 621 if (conn->client) 622 return tlsv1_client_resumed(conn->client); 623#endif /* CONFIG_TLS_INTERNAL_CLIENT */ 624#ifdef CONFIG_TLS_INTERNAL_SERVER 625 if (conn->server) 626 return tlsv1_server_resumed(conn->server); 627#endif /* CONFIG_TLS_INTERNAL_SERVER */ 628 return -1; 629} 630 631 632int tls_connection_set_cipher_list(void *tls_ctx, struct tls_connection *conn, 633 u8 *ciphers) 634{ 635#ifdef CONFIG_TLS_INTERNAL_CLIENT 636 if (conn->client) 637 return tlsv1_client_set_cipher_list(conn->client, ciphers); 638#endif /* CONFIG_TLS_INTERNAL_CLIENT */ 639#ifdef CONFIG_TLS_INTERNAL_SERVER 640 if (conn->server) 641 return tlsv1_server_set_cipher_list(conn->server, ciphers); 642#endif /* CONFIG_TLS_INTERNAL_SERVER */ 643 return -1; 644} 645 646 647int tls_get_version(void *ssl_ctx, struct tls_connection *conn, 648 char *buf, size_t buflen) 649{ 650 if (conn == NULL) 651 return -1; 652#ifdef CONFIG_TLS_INTERNAL_CLIENT 653 if (conn->client) 654 return tlsv1_client_get_version(conn->client, buf, buflen); 655#endif /* CONFIG_TLS_INTERNAL_CLIENT */ 656 return -1; 657} 658 659 660int tls_get_cipher(void *tls_ctx, struct tls_connection *conn, 661 char *buf, size_t buflen) 662{ 663 if (conn == NULL) 664 return -1; 665#ifdef CONFIG_TLS_INTERNAL_CLIENT 666 if (conn->client) 667 return tlsv1_client_get_cipher(conn->client, buf, buflen); 668#endif /* CONFIG_TLS_INTERNAL_CLIENT */ 669#ifdef CONFIG_TLS_INTERNAL_SERVER 670 if (conn->server) 671 return tlsv1_server_get_cipher(conn->server, buf, buflen); 672#endif /* CONFIG_TLS_INTERNAL_SERVER */ 673 return -1; 674} 675 676 677int tls_connection_enable_workaround(void *tls_ctx, 678 struct tls_connection *conn) 679{ 680 return -1; 681} 682 683 684int tls_connection_client_hello_ext(void *tls_ctx, struct tls_connection *conn, 685 int ext_type, const u8 *data, 686 size_t data_len) 687{ 688#ifdef CONFIG_TLS_INTERNAL_CLIENT 689 if (conn->client) { 690 return tlsv1_client_hello_ext(conn->client, ext_type, 691 data, data_len); 692 } 693#endif /* CONFIG_TLS_INTERNAL_CLIENT */ 694 return -1; 695} 696 697 698int tls_connection_get_failed(void *tls_ctx, struct tls_connection *conn) 699{ 700 return 0; 701} 702 703 704int tls_connection_get_read_alerts(void *tls_ctx, struct tls_connection *conn) 705{ 706 return 0; 707} 708 709 710int tls_connection_get_write_alerts(void *tls_ctx, 711 struct tls_connection *conn) 712{ 713 return 0; 714} 715 716 717int tls_connection_set_session_ticket_cb(void *tls_ctx, 718 struct tls_connection *conn, 719 tls_session_ticket_cb cb, 720 void *ctx) 721{ 722#ifdef CONFIG_TLS_INTERNAL_CLIENT 723 if (conn->client) { 724 tlsv1_client_set_session_ticket_cb(conn->client, cb, ctx); 725 return 0; 726 } 727#endif /* CONFIG_TLS_INTERNAL_CLIENT */ 728#ifdef CONFIG_TLS_INTERNAL_SERVER 729 if (conn->server) { 730 tlsv1_server_set_session_ticket_cb(conn->server, cb, ctx); 731 return 0; 732 } 733#endif /* CONFIG_TLS_INTERNAL_SERVER */ 734 return -1; 735} 736 737 738int tls_get_library_version(char *buf, size_t buf_len) 739{ 740 return os_snprintf(buf, buf_len, "internal"); 741} 742 743 744void tls_connection_set_success_data(struct tls_connection *conn, 745 struct wpabuf *data) 746{ 747} 748 749 750void tls_connection_set_success_data_resumed(struct tls_connection *conn) 751{ 752} 753 754 755const struct wpabuf * 756tls_connection_get_success_data(struct tls_connection *conn) 757{ 758 return NULL; 759} 760 761 762void tls_connection_remove_session(struct tls_connection *conn) 763{ 764} 765