crypto/libressl/ssl/ssl_methods.c

   1 /* $OpenBSD: ssl_methods.c,v 1.16 2020/09/17 15:23:29 jsing Exp $ */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58
  59 #include "ssl_locl.h"
  60 #include "tls13_internal.h"
  61
  62 static const SSL_METHOD_INTERNAL DTLSv1_client_method_internal_data = {
  63         .version = DTLS1_VERSION,
  64         .min_version = DTLS1_VERSION,
  65         .max_version = DTLS1_VERSION,
  66         .ssl_new = dtls1_new,
  67         .ssl_clear = dtls1_clear,
  68         .ssl_free = dtls1_free,
  69         .ssl_accept = ssl_undefined_function,
  70         .ssl_connect = ssl3_connect,
  71         .ssl_shutdown = ssl3_shutdown,
  72         .ssl_renegotiate = ssl3_renegotiate,
  73         .ssl_renegotiate_check = ssl3_renegotiate_check,
  74         .ssl_pending = ssl3_pending,
  75         .ssl_read_bytes = dtls1_read_bytes,
  76         .ssl_write_bytes = dtls1_write_app_data_bytes,
  77         .ssl3_enc = &DTLSv1_enc_data,
  78 };
  79
  80 static const SSL_METHOD DTLSv1_client_method_data = {
  81         .ssl_dispatch_alert = dtls1_dispatch_alert,
  82         .num_ciphers = ssl3_num_ciphers,
  83         .get_cipher = dtls1_get_cipher,
  84         .get_cipher_by_char = ssl3_get_cipher_by_char,
  85         .put_cipher_by_char = ssl3_put_cipher_by_char,
  86         .internal = &DTLSv1_client_method_internal_data,
  87 };
  88
  89 const SSL_METHOD *
  90 DTLSv1_client_method(void)
  91 {
  92         return &DTLSv1_client_method_data;
  93 }
  94
  95 const SSL_METHOD *
  96 DTLS_client_method(void)
  97 {
  98         return DTLSv1_client_method();
  99 }
 100
 101 static const SSL_METHOD_INTERNAL DTLSv1_method_internal_data = {
 102         .version = DTLS1_VERSION,
 103         .min_version = DTLS1_VERSION,
 104         .max_version = DTLS1_VERSION,
 105         .ssl_new = dtls1_new,
 106         .ssl_clear = dtls1_clear,
 107         .ssl_free = dtls1_free,
 108         .ssl_accept = ssl3_accept,
 109         .ssl_connect = ssl3_connect,
 110         .ssl_shutdown = ssl3_shutdown,
 111         .ssl_renegotiate = ssl3_renegotiate,
 112         .ssl_renegotiate_check = ssl3_renegotiate_check,
 113         .ssl_pending = ssl3_pending,
 114         .ssl_read_bytes = dtls1_read_bytes,
 115         .ssl_write_bytes = dtls1_write_app_data_bytes,
 116         .ssl3_enc = &DTLSv1_enc_data,
 117 };
 118
 119 static const SSL_METHOD DTLSv1_method_data = {
 120         .ssl_dispatch_alert = dtls1_dispatch_alert,
 121         .num_ciphers = ssl3_num_ciphers,
 122         .get_cipher = dtls1_get_cipher,
 123         .get_cipher_by_char = ssl3_get_cipher_by_char,
 124         .put_cipher_by_char = ssl3_put_cipher_by_char,
 125         .internal = &DTLSv1_method_internal_data,
 126 };
 127
 128 const SSL_METHOD *
 129 DTLSv1_method(void)
 130 {
 131         return &DTLSv1_method_data;
 132 }
 133
 134 const SSL_METHOD *
 135 DTLS_method(void)
 136 {
 137         return DTLSv1_method();
 138 }
 139
 140 static const SSL_METHOD_INTERNAL DTLSv1_server_method_internal_data = {
 141         .version = DTLS1_VERSION,
 142         .min_version = DTLS1_VERSION,
 143         .max_version = DTLS1_VERSION,
 144         .ssl_new = dtls1_new,
 145         .ssl_clear = dtls1_clear,
 146         .ssl_free = dtls1_free,
 147         .ssl_accept = ssl3_accept,
 148         .ssl_connect = ssl_undefined_function,
 149         .ssl_shutdown = ssl3_shutdown,
 150         .ssl_renegotiate = ssl3_renegotiate,
 151         .ssl_renegotiate_check = ssl3_renegotiate_check,
 152         .ssl_pending = ssl3_pending,
 153         .ssl_read_bytes = dtls1_read_bytes,
 154         .ssl_write_bytes = dtls1_write_app_data_bytes,
 155         .ssl3_enc = &DTLSv1_enc_data,
 156 };
 157
 158 static const SSL_METHOD DTLSv1_server_method_data = {
 159         .ssl_dispatch_alert = dtls1_dispatch_alert,
 160         .num_ciphers = ssl3_num_ciphers,
 161         .get_cipher = dtls1_get_cipher,
 162         .get_cipher_by_char = ssl3_get_cipher_by_char,
 163         .put_cipher_by_char = ssl3_put_cipher_by_char,
 164         .internal = &DTLSv1_server_method_internal_data,
 165 };
 166
 167 const SSL_METHOD *
 168 DTLSv1_server_method(void)
 169 {
 170         return &DTLSv1_server_method_data;
 171 }
 172
 173 const SSL_METHOD *
 174 DTLS_server_method(void)
 175 {
 176         return DTLSv1_server_method();
 177 }
 178
 179 #ifdef LIBRESSL_HAS_TLS1_3_CLIENT
 180 static const SSL_METHOD_INTERNAL TLS_client_method_internal_data = {
 181         .version = TLS1_3_VERSION,
 182         .min_version = TLS1_VERSION,
 183         .max_version = TLS1_3_VERSION,
 184         .ssl_new = tls1_new,
 185         .ssl_clear = tls1_clear,
 186         .ssl_free = tls1_free,
 187         .ssl_accept = ssl_undefined_function,
 188         .ssl_connect = tls13_legacy_connect,
 189         .ssl_shutdown = tls13_legacy_shutdown,
 190         .ssl_renegotiate = ssl_undefined_function,
 191         .ssl_renegotiate_check = ssl_ok,
 192         .ssl_pending = tls13_legacy_pending,
 193         .ssl_read_bytes = tls13_legacy_read_bytes,
 194         .ssl_write_bytes = tls13_legacy_write_bytes,
 195         .ssl3_enc = &TLSv1_3_enc_data,
 196 };
 197
 198 static const SSL_METHOD TLS_client_method_data = {
 199         .ssl_dispatch_alert = ssl3_dispatch_alert,
 200         .num_ciphers = ssl3_num_ciphers,
 201         .get_cipher = ssl3_get_cipher,
 202         .get_cipher_by_char = ssl3_get_cipher_by_char,
 203         .put_cipher_by_char = ssl3_put_cipher_by_char,
 204         .internal = &TLS_client_method_internal_data,
 205 };
 206 #endif
 207
 208 static const SSL_METHOD_INTERNAL TLS_legacy_client_method_internal_data = {
 209         .version = TLS1_2_VERSION,
 210         .min_version = TLS1_VERSION,
 211         .max_version = TLS1_2_VERSION,
 212         .ssl_new = tls1_new,
 213         .ssl_clear = tls1_clear,
 214         .ssl_free = tls1_free,
 215         .ssl_accept = ssl_undefined_function,
 216         .ssl_connect = ssl3_connect,
 217         .ssl_shutdown = ssl3_shutdown,
 218         .ssl_renegotiate = ssl_undefined_function,
 219         .ssl_renegotiate_check = ssl_ok,
 220         .ssl_pending = ssl3_pending,
 221         .ssl_read_bytes = ssl3_read_bytes,
 222         .ssl_write_bytes = ssl3_write_bytes,
 223         .ssl3_enc = &TLSv1_2_enc_data,
 224 };
 225
 226 static const SSL_METHOD TLS_legacy_client_method_data = {
 227         .ssl_dispatch_alert = ssl3_dispatch_alert,
 228         .num_ciphers = ssl3_num_ciphers,
 229         .get_cipher = ssl3_get_cipher,
 230         .get_cipher_by_char = ssl3_get_cipher_by_char,
 231         .put_cipher_by_char = ssl3_put_cipher_by_char,
 232         .internal = &TLS_legacy_client_method_internal_data,
 233 };
 234
 235 static const SSL_METHOD_INTERNAL TLSv1_client_method_internal_data = {
 236         .version = TLS1_VERSION,
 237         .min_version = TLS1_VERSION,
 238         .max_version = TLS1_VERSION,
 239         .ssl_new = tls1_new,
 240         .ssl_clear = tls1_clear,
 241         .ssl_free = tls1_free,
 242         .ssl_accept = ssl_undefined_function,
 243         .ssl_connect = ssl3_connect,
 244         .ssl_shutdown = ssl3_shutdown,
 245         .ssl_renegotiate = ssl3_renegotiate,
 246         .ssl_renegotiate_check = ssl3_renegotiate_check,
 247         .ssl_pending = ssl3_pending,
 248         .ssl_read_bytes = ssl3_read_bytes,
 249         .ssl_write_bytes = ssl3_write_bytes,
 250         .ssl3_enc = &TLSv1_enc_data,
 251 };
 252
 253 static const SSL_METHOD TLSv1_client_method_data = {
 254         .ssl_dispatch_alert = ssl3_dispatch_alert,
 255         .num_ciphers = ssl3_num_ciphers,
 256         .get_cipher = ssl3_get_cipher,
 257         .get_cipher_by_char = ssl3_get_cipher_by_char,
 258         .put_cipher_by_char = ssl3_put_cipher_by_char,
 259         .internal = &TLSv1_client_method_internal_data,
 260 };
 261
 262 static const SSL_METHOD_INTERNAL TLSv1_1_client_method_internal_data = {
 263         .version = TLS1_1_VERSION,
 264         .min_version = TLS1_1_VERSION,
 265         .max_version = TLS1_1_VERSION,
 266         .ssl_new = tls1_new,
 267         .ssl_clear = tls1_clear,
 268         .ssl_free = tls1_free,
 269         .ssl_accept = ssl_undefined_function,
 270         .ssl_connect = ssl3_connect,
 271         .ssl_shutdown = ssl3_shutdown,
 272         .ssl_renegotiate = ssl3_renegotiate,
 273         .ssl_renegotiate_check = ssl3_renegotiate_check,
 274         .ssl_pending = ssl3_pending,
 275         .ssl_read_bytes = ssl3_read_bytes,
 276         .ssl_write_bytes = ssl3_write_bytes,
 277         .ssl3_enc = &TLSv1_1_enc_data,
 278 };
 279
 280 static const SSL_METHOD TLSv1_1_client_method_data = {
 281         .ssl_dispatch_alert = ssl3_dispatch_alert,
 282         .num_ciphers = ssl3_num_ciphers,
 283         .get_cipher = ssl3_get_cipher,
 284         .get_cipher_by_char = ssl3_get_cipher_by_char,
 285         .put_cipher_by_char = ssl3_put_cipher_by_char,
 286         .internal = &TLSv1_1_client_method_internal_data,
 287 };
 288
 289 static const SSL_METHOD_INTERNAL TLSv1_2_client_method_internal_data = {
 290         .version = TLS1_2_VERSION,
 291         .min_version = TLS1_2_VERSION,
 292         .max_version = TLS1_2_VERSION,
 293         .ssl_new = tls1_new,
 294         .ssl_clear = tls1_clear,
 295         .ssl_free = tls1_free,
 296         .ssl_accept = ssl_undefined_function,
 297         .ssl_connect = ssl3_connect,
 298         .ssl_shutdown = ssl3_shutdown,
 299         .ssl_renegotiate = ssl3_renegotiate,
 300         .ssl_renegotiate_check = ssl3_renegotiate_check,
 301         .ssl_pending = ssl3_pending,
 302         .ssl_read_bytes = ssl3_read_bytes,
 303         .ssl_write_bytes = ssl3_write_bytes,
 304         .ssl3_enc = &TLSv1_2_enc_data,
 305 };
 306
 307 static const SSL_METHOD TLSv1_2_client_method_data = {
 308         .ssl_dispatch_alert = ssl3_dispatch_alert,
 309         .num_ciphers = ssl3_num_ciphers,
 310         .get_cipher = ssl3_get_cipher,
 311         .get_cipher_by_char = ssl3_get_cipher_by_char,
 312         .put_cipher_by_char = ssl3_put_cipher_by_char,
 313         .internal = &TLSv1_2_client_method_internal_data,
 314 };
 315
 316 const SSL_METHOD *
 317 SSLv23_client_method(void)
 318 {
 319         return (TLS_client_method());
 320 }
 321
 322 const SSL_METHOD *
 323 TLS_client_method(void)
 324 {
 325 #ifdef LIBRESSL_HAS_TLS1_3_CLIENT
 326         return (&TLS_client_method_data);
 327 #else
 328         return tls_legacy_client_method();
 329 #endif
 330 }
 331
 332 const SSL_METHOD *
 333 tls_legacy_client_method(void)
 334 {
 335         return (&TLS_legacy_client_method_data);
 336 }
 337
 338 const SSL_METHOD *
 339 TLSv1_client_method(void)
 340 {
 341         return (&TLSv1_client_method_data);
 342 }
 343
 344 const SSL_METHOD *
 345 TLSv1_1_client_method(void)
 346 {
 347         return (&TLSv1_1_client_method_data);
 348 }
 349
 350 const SSL_METHOD *
 351 TLSv1_2_client_method(void)
 352 {
 353         return (&TLSv1_2_client_method_data);
 354 }
 355
 356 #if defined(LIBRESSL_HAS_TLS1_3_CLIENT) && defined(LIBRESSL_HAS_TLS1_3_SERVER)
 357 static const SSL_METHOD_INTERNAL TLS_method_internal_data = {
 358         .version = TLS1_3_VERSION,
 359         .min_version = TLS1_VERSION,
 360         .max_version = TLS1_3_VERSION,
 361         .ssl_new = tls1_new,
 362         .ssl_clear = tls1_clear,
 363         .ssl_free = tls1_free,
 364         .ssl_accept = tls13_legacy_accept,
 365         .ssl_connect = tls13_legacy_connect,
 366         .ssl_shutdown = tls13_legacy_shutdown,
 367         .ssl_renegotiate = ssl_undefined_function,
 368         .ssl_renegotiate_check = ssl_ok,
 369         .ssl_pending = tls13_legacy_pending,
 370         .ssl_read_bytes = tls13_legacy_read_bytes,
 371         .ssl_write_bytes = tls13_legacy_write_bytes,
 372         .ssl3_enc = &TLSv1_3_enc_data,
 373 };
 374
 375 static const SSL_METHOD TLS_method_data = {
 376         .ssl_dispatch_alert = ssl3_dispatch_alert,
 377         .num_ciphers = ssl3_num_ciphers,
 378         .get_cipher = ssl3_get_cipher,
 379         .get_cipher_by_char = ssl3_get_cipher_by_char,
 380         .put_cipher_by_char = ssl3_put_cipher_by_char,
 381         .internal = &TLS_method_internal_data,
 382 };
 383 #endif
 384
 385 static const SSL_METHOD_INTERNAL TLS_legacy_method_internal_data = {
 386         .version = TLS1_2_VERSION,
 387         .min_version = TLS1_VERSION,
 388         .max_version = TLS1_2_VERSION,
 389         .ssl_new = tls1_new,
 390         .ssl_clear = tls1_clear,
 391         .ssl_free = tls1_free,
 392         .ssl_accept = ssl3_accept,
 393         .ssl_connect = ssl3_connect,
 394         .ssl_shutdown = ssl3_shutdown,
 395         .ssl_renegotiate = ssl_undefined_function,
 396         .ssl_renegotiate_check = ssl_ok,
 397         .ssl_pending = ssl3_pending,
 398         .ssl_read_bytes = ssl3_read_bytes,
 399         .ssl_write_bytes = ssl3_write_bytes,
 400         .ssl3_enc = &TLSv1_2_enc_data,
 401 };
 402
 403 static const SSL_METHOD TLS_legacy_method_data = {
 404         .ssl_dispatch_alert = ssl3_dispatch_alert,
 405         .num_ciphers = ssl3_num_ciphers,
 406         .get_cipher = ssl3_get_cipher,
 407         .get_cipher_by_char = ssl3_get_cipher_by_char,
 408         .put_cipher_by_char = ssl3_put_cipher_by_char,
 409         .internal = &TLS_legacy_method_internal_data,
 410 };
 411
 412 static const SSL_METHOD_INTERNAL TLSv1_method_internal_data = {
 413         .version = TLS1_VERSION,
 414         .min_version = TLS1_VERSION,
 415         .max_version = TLS1_VERSION,
 416         .ssl_new = tls1_new,
 417         .ssl_clear = tls1_clear,
 418         .ssl_free = tls1_free,
 419         .ssl_accept = ssl3_accept,
 420         .ssl_connect = ssl3_connect,
 421         .ssl_shutdown = ssl3_shutdown,
 422         .ssl_renegotiate = ssl3_renegotiate,
 423         .ssl_renegotiate_check = ssl3_renegotiate_check,
 424         .ssl_pending = ssl3_pending,
 425         .ssl_read_bytes = ssl3_read_bytes,
 426         .ssl_write_bytes = ssl3_write_bytes,
 427         .ssl3_enc = &TLSv1_enc_data,
 428 };
 429
 430 static const SSL_METHOD TLSv1_method_data = {
 431         .ssl_dispatch_alert = ssl3_dispatch_alert,
 432         .num_ciphers = ssl3_num_ciphers,
 433         .get_cipher = ssl3_get_cipher,
 434         .get_cipher_by_char = ssl3_get_cipher_by_char,
 435         .put_cipher_by_char = ssl3_put_cipher_by_char,
 436         .internal = &TLSv1_method_internal_data,
 437 };
 438
 439 static const SSL_METHOD_INTERNAL TLSv1_1_method_internal_data = {
 440         .version = TLS1_1_VERSION,
 441         .min_version = TLS1_1_VERSION,
 442         .max_version = TLS1_1_VERSION,
 443         .ssl_new = tls1_new,
 444         .ssl_clear = tls1_clear,
 445         .ssl_free = tls1_free,
 446         .ssl_accept = ssl3_accept,
 447         .ssl_connect = ssl3_connect,
 448         .ssl_shutdown = ssl3_shutdown,
 449         .ssl_renegotiate = ssl3_renegotiate,
 450         .ssl_renegotiate_check = ssl3_renegotiate_check,
 451         .ssl_pending = ssl3_pending,
 452         .ssl_read_bytes = ssl3_read_bytes,
 453         .ssl_write_bytes = ssl3_write_bytes,
 454         .ssl3_enc = &TLSv1_1_enc_data,
 455 };
 456
 457 static const SSL_METHOD TLSv1_1_method_data = {
 458         .ssl_dispatch_alert = ssl3_dispatch_alert,
 459         .num_ciphers = ssl3_num_ciphers,
 460         .get_cipher = ssl3_get_cipher,
 461         .get_cipher_by_char = ssl3_get_cipher_by_char,
 462         .put_cipher_by_char = ssl3_put_cipher_by_char,
 463         .internal = &TLSv1_1_method_internal_data,
 464 };
 465
 466 static const SSL_METHOD_INTERNAL TLSv1_2_method_internal_data = {
 467         .version = TLS1_2_VERSION,
 468         .min_version = TLS1_2_VERSION,
 469         .max_version = TLS1_2_VERSION,
 470         .ssl_new = tls1_new,
 471         .ssl_clear = tls1_clear,
 472         .ssl_free = tls1_free,
 473         .ssl_accept = ssl3_accept,
 474         .ssl_connect = ssl3_connect,
 475         .ssl_shutdown = ssl3_shutdown,
 476         .ssl_renegotiate = ssl3_renegotiate,
 477         .ssl_renegotiate_check = ssl3_renegotiate_check,
 478         .ssl_pending = ssl3_pending,
 479         .ssl_read_bytes = ssl3_read_bytes,
 480         .ssl_write_bytes = ssl3_write_bytes,
 481         .ssl3_enc = &TLSv1_2_enc_data,
 482 };
 483
 484 static const SSL_METHOD TLSv1_2_method_data = {
 485         .ssl_dispatch_alert = ssl3_dispatch_alert,
 486         .num_ciphers = ssl3_num_ciphers,
 487         .get_cipher = ssl3_get_cipher,
 488         .get_cipher_by_char = ssl3_get_cipher_by_char,
 489         .put_cipher_by_char = ssl3_put_cipher_by_char,
 490         .internal = &TLSv1_2_method_internal_data,
 491 };
 492
 493 const SSL_METHOD *
 494 SSLv23_method(void)
 495 {
 496         return (TLS_method());
 497 }
 498
 499 const SSL_METHOD *
 500 TLS_method(void)
 501 {
 502 #if defined(LIBRESSL_HAS_TLS1_3_CLIENT) && defined(LIBRESSL_HAS_TLS1_3_SERVER)
 503         return (&TLS_method_data);
 504 #else
 505         return tls_legacy_method();
 506 #endif
 507 }
 508
 509 const SSL_METHOD *
 510 tls_legacy_method(void)
 511 {
 512         return (&TLS_legacy_method_data);
 513 }
 514
 515 const SSL_METHOD *
 516 TLSv1_method(void)
 517 {
 518         return (&TLSv1_method_data);
 519 }
 520
 521 const SSL_METHOD *
 522 TLSv1_1_method(void)
 523 {
 524         return (&TLSv1_1_method_data);
 525 }
 526
 527 const SSL_METHOD *
 528 TLSv1_2_method(void)
 529 {
 530         return (&TLSv1_2_method_data);
 531 }
 532
 533 #ifdef LIBRESSL_HAS_TLS1_3_SERVER
 534 static const SSL_METHOD_INTERNAL TLS_server_method_internal_data = {
 535         .version = TLS1_3_VERSION,
 536         .min_version = TLS1_VERSION,
 537         .max_version = TLS1_3_VERSION,
 538         .ssl_new = tls1_new,
 539         .ssl_clear = tls1_clear,
 540         .ssl_free = tls1_free,
 541         .ssl_accept = tls13_legacy_accept,
 542         .ssl_connect = ssl_undefined_function,
 543         .ssl_shutdown = tls13_legacy_shutdown,
 544         .ssl_renegotiate = ssl_undefined_function,
 545         .ssl_renegotiate_check = ssl_ok,
 546         .ssl_pending = tls13_legacy_pending,
 547         .ssl_read_bytes = tls13_legacy_read_bytes,
 548         .ssl_write_bytes = tls13_legacy_write_bytes,
 549         .ssl3_enc = &TLSv1_3_enc_data,
 550 };
 551
 552 static const SSL_METHOD TLS_server_method_data = {
 553         .ssl_dispatch_alert = ssl3_dispatch_alert,
 554         .num_ciphers = ssl3_num_ciphers,
 555         .get_cipher = ssl3_get_cipher,
 556         .get_cipher_by_char = ssl3_get_cipher_by_char,
 557         .put_cipher_by_char = ssl3_put_cipher_by_char,
 558         .internal = &TLS_server_method_internal_data,
 559 };
 560 #endif
 561
 562 static const SSL_METHOD_INTERNAL TLS_legacy_server_method_internal_data = {
 563         .version = TLS1_2_VERSION,
 564         .min_version = TLS1_VERSION,
 565         .max_version = TLS1_2_VERSION,
 566         .ssl_new = tls1_new,
 567         .ssl_clear = tls1_clear,
 568         .ssl_free = tls1_free,
 569         .ssl_accept = ssl3_accept,
 570         .ssl_connect = ssl_undefined_function,
 571         .ssl_shutdown = ssl3_shutdown,
 572         .ssl_renegotiate = ssl_undefined_function,
 573         .ssl_renegotiate_check = ssl_ok,
 574         .ssl_pending = ssl3_pending,
 575         .ssl_read_bytes = ssl3_read_bytes,
 576         .ssl_write_bytes = ssl3_write_bytes,
 577         .ssl3_enc = &TLSv1_2_enc_data,
 578 };
 579
 580 static const SSL_METHOD TLS_legacy_server_method_data = {
 581         .ssl_dispatch_alert = ssl3_dispatch_alert,
 582         .num_ciphers = ssl3_num_ciphers,
 583         .get_cipher = ssl3_get_cipher,
 584         .get_cipher_by_char = ssl3_get_cipher_by_char,
 585         .put_cipher_by_char = ssl3_put_cipher_by_char,
 586         .internal = &TLS_legacy_server_method_internal_data,
 587 };
 588
 589 static const SSL_METHOD_INTERNAL TLSv1_server_method_internal_data = {
 590         .version = TLS1_VERSION,
 591         .min_version = TLS1_VERSION,
 592         .max_version = TLS1_VERSION,
 593         .ssl_new = tls1_new,
 594         .ssl_clear = tls1_clear,
 595         .ssl_free = tls1_free,
 596         .ssl_accept = ssl3_accept,
 597         .ssl_connect = ssl_undefined_function,
 598         .ssl_shutdown = ssl3_shutdown,
 599         .ssl_renegotiate = ssl3_renegotiate,
 600         .ssl_renegotiate_check = ssl3_renegotiate_check,
 601         .ssl_pending = ssl3_pending,
 602         .ssl_read_bytes = ssl3_read_bytes,
 603         .ssl_write_bytes = ssl3_write_bytes,
 604         .ssl3_enc = &TLSv1_enc_data,
 605 };
 606
 607 static const SSL_METHOD TLSv1_server_method_data = {
 608         .ssl_dispatch_alert = ssl3_dispatch_alert,
 609         .num_ciphers = ssl3_num_ciphers,
 610         .get_cipher = ssl3_get_cipher,
 611         .get_cipher_by_char = ssl3_get_cipher_by_char,
 612         .put_cipher_by_char = ssl3_put_cipher_by_char,
 613         .internal = &TLSv1_server_method_internal_data,
 614 };
 615
 616 static const SSL_METHOD_INTERNAL TLSv1_1_server_method_internal_data = {
 617         .version = TLS1_1_VERSION,
 618         .min_version = TLS1_1_VERSION,
 619         .max_version = TLS1_1_VERSION,
 620         .ssl_new = tls1_new,
 621         .ssl_clear = tls1_clear,
 622         .ssl_free = tls1_free,
 623         .ssl_accept = ssl3_accept,
 624         .ssl_connect = ssl_undefined_function,
 625         .ssl_shutdown = ssl3_shutdown,
 626         .ssl_renegotiate = ssl3_renegotiate,
 627         .ssl_renegotiate_check = ssl3_renegotiate_check,
 628         .ssl_pending = ssl3_pending,
 629         .ssl_read_bytes = ssl3_read_bytes,
 630         .ssl_write_bytes = ssl3_write_bytes,
 631         .ssl3_enc = &TLSv1_1_enc_data,
 632 };
 633
 634 static const SSL_METHOD TLSv1_1_server_method_data = {
 635         .ssl_dispatch_alert = ssl3_dispatch_alert,
 636         .num_ciphers = ssl3_num_ciphers,
 637         .get_cipher = ssl3_get_cipher,
 638         .get_cipher_by_char = ssl3_get_cipher_by_char,
 639         .put_cipher_by_char = ssl3_put_cipher_by_char,
 640         .internal = &TLSv1_1_server_method_internal_data,
 641 };
 642
 643 static const SSL_METHOD_INTERNAL TLSv1_2_server_method_internal_data = {
 644         .version = TLS1_2_VERSION,
 645         .min_version = TLS1_2_VERSION,
 646         .max_version = TLS1_2_VERSION,
 647         .ssl_new = tls1_new,
 648         .ssl_clear = tls1_clear,
 649         .ssl_free = tls1_free,
 650         .ssl_accept = ssl3_accept,
 651         .ssl_connect = ssl_undefined_function,
 652         .ssl_shutdown = ssl3_shutdown,
 653         .ssl_renegotiate = ssl3_renegotiate,
 654         .ssl_renegotiate_check = ssl3_renegotiate_check,
 655         .ssl_pending = ssl3_pending,
 656         .ssl_read_bytes = ssl3_read_bytes,
 657         .ssl_write_bytes = ssl3_write_bytes,
 658         .ssl3_enc = &TLSv1_2_enc_data,
 659 };
 660
 661 static const SSL_METHOD TLSv1_2_server_method_data = {
 662         .ssl_dispatch_alert = ssl3_dispatch_alert,
 663         .num_ciphers = ssl3_num_ciphers,
 664         .get_cipher = ssl3_get_cipher,
 665         .get_cipher_by_char = ssl3_get_cipher_by_char,
 666         .put_cipher_by_char = ssl3_put_cipher_by_char,
 667         .internal = &TLSv1_2_server_method_internal_data,
 668 };
 669
 670 const SSL_METHOD *
 671 SSLv23_server_method(void)
 672 {
 673         return (TLS_server_method());
 674 }
 675
 676 const SSL_METHOD *
 677 TLS_server_method(void)
 678 {
 679 #ifdef LIBRESSL_HAS_TLS1_3_SERVER
 680         return (&TLS_server_method_data);
 681 #else
 682         return tls_legacy_server_method();
 683 #endif
 684 }
 685
 686 const SSL_METHOD *
 687 tls_legacy_server_method(void)
 688 {
 689         return (&TLS_legacy_server_method_data);
 690 }
 691
 692 const SSL_METHOD *
 693 TLSv1_server_method(void)
 694 {
 695         return (&TLSv1_server_method_data);
 696 }
 697
 698 const SSL_METHOD *
 699 TLSv1_1_server_method(void)
 700 {
 701         return (&TLSv1_1_server_method_data);
 702 }
 703
 704 const SSL_METHOD *
 705 TLSv1_2_server_method(void)
 706 {
 707         return (&TLSv1_2_server_method_data);
 708 }
 709
 710 const SSL_METHOD *
 711 ssl_get_client_method(uint16_t version)
 712 {
 713         if (version == TLS1_3_VERSION)
 714                 return (TLS_client_method());
 715         if (version == TLS1_2_VERSION)
 716                 return (TLSv1_2_client_method());
 717         if (version == TLS1_1_VERSION)
 718                 return (TLSv1_1_client_method());
 719         if (version == TLS1_VERSION)
 720                 return (TLSv1_client_method());
 721         if (version == DTLS1_VERSION)
 722                 return (DTLSv1_client_method());
 723
 724         return (NULL);
 725 }
 726
 727 const SSL_METHOD *
 728 ssl_get_server_method(uint16_t version)
 729 {
 730         if (version == TLS1_3_VERSION)
 731                 return (TLS_server_method());
 732         if (version == TLS1_2_VERSION)
 733                 return (TLSv1_2_server_method());
 734         if (version == TLS1_1_VERSION)
 735                 return (TLSv1_1_server_method());
 736         if (version == TLS1_VERSION)
 737                 return (TLSv1_server_method());
 738         if (version == DTLS1_VERSION)
 739                 return (DTLSv1_server_method());
 740
 741         return (NULL);
 742 }