pineapple/externals/libressl/ssl/ssl_methods.c
2022-04-24 22:29:35 +02:00

580 lines
16 KiB
C
Executable file

/* $OpenBSD: ssl_methods.c,v 1.28 2021/07/26 03:17:38 jsing Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include "dtls_locl.h"
#include "ssl_locl.h"
#include "tls13_internal.h"
static const SSL_METHOD DTLS_method_data = {
.dtls = 1,
.server = 1,
.version = DTLS1_2_VERSION,
.min_tls_version = TLS1_1_VERSION,
.max_tls_version = TLS1_2_VERSION,
.ssl_new = dtls1_new,
.ssl_clear = dtls1_clear,
.ssl_free = dtls1_free,
.ssl_accept = ssl3_accept,
.ssl_connect = ssl3_connect,
.ssl_shutdown = ssl3_shutdown,
.ssl_renegotiate = ssl3_renegotiate,
.ssl_renegotiate_check = ssl3_renegotiate_check,
.ssl_pending = ssl3_pending,
.ssl_read_bytes = dtls1_read_bytes,
.ssl_write_bytes = dtls1_write_app_data_bytes,
.get_cipher = dtls1_get_cipher,
.enc_flags = TLSV1_2_ENC_FLAGS,
};
static const SSL_METHOD DTLS_client_method_data = {
.dtls = 1,
.server = 0,
.version = DTLS1_2_VERSION,
.min_tls_version = TLS1_1_VERSION,
.max_tls_version = TLS1_2_VERSION,
.ssl_new = dtls1_new,
.ssl_clear = dtls1_clear,
.ssl_free = dtls1_free,
.ssl_accept = ssl_undefined_function,
.ssl_connect = ssl3_connect,
.ssl_shutdown = ssl3_shutdown,
.ssl_renegotiate = ssl3_renegotiate,
.ssl_renegotiate_check = ssl3_renegotiate_check,
.ssl_pending = ssl3_pending,
.ssl_read_bytes = dtls1_read_bytes,
.ssl_write_bytes = dtls1_write_app_data_bytes,
.get_cipher = dtls1_get_cipher,
.enc_flags = TLSV1_2_ENC_FLAGS,
};
static const SSL_METHOD DTLSv1_method_data = {
.dtls = 1,
.server = 1,
.version = DTLS1_VERSION,
.min_tls_version = TLS1_1_VERSION,
.max_tls_version = TLS1_1_VERSION,
.ssl_new = dtls1_new,
.ssl_clear = dtls1_clear,
.ssl_free = dtls1_free,
.ssl_accept = ssl3_accept,
.ssl_connect = ssl3_connect,
.ssl_shutdown = ssl3_shutdown,
.ssl_renegotiate = ssl3_renegotiate,
.ssl_renegotiate_check = ssl3_renegotiate_check,
.ssl_pending = ssl3_pending,
.ssl_read_bytes = dtls1_read_bytes,
.ssl_write_bytes = dtls1_write_app_data_bytes,
.get_cipher = dtls1_get_cipher,
.enc_flags = TLSV1_1_ENC_FLAGS,
};
static const SSL_METHOD DTLSv1_client_method_data = {
.dtls = 1,
.server = 0,
.version = DTLS1_VERSION,
.min_tls_version = TLS1_1_VERSION,
.max_tls_version = TLS1_1_VERSION,
.ssl_new = dtls1_new,
.ssl_clear = dtls1_clear,
.ssl_free = dtls1_free,
.ssl_accept = ssl_undefined_function,
.ssl_connect = ssl3_connect,
.ssl_shutdown = ssl3_shutdown,
.ssl_renegotiate = ssl3_renegotiate,
.ssl_renegotiate_check = ssl3_renegotiate_check,
.ssl_pending = ssl3_pending,
.ssl_read_bytes = dtls1_read_bytes,
.ssl_write_bytes = dtls1_write_app_data_bytes,
.get_cipher = dtls1_get_cipher,
.enc_flags = TLSV1_1_ENC_FLAGS,
};
static const SSL_METHOD DTLSv1_2_method_data = {
.dtls = 1,
.server = 1,
.version = DTLS1_2_VERSION,
.min_tls_version = TLS1_2_VERSION,
.max_tls_version = TLS1_2_VERSION,
.ssl_new = dtls1_new,
.ssl_clear = dtls1_clear,
.ssl_free = dtls1_free,
.ssl_accept = ssl3_accept,
.ssl_connect = ssl3_connect,
.ssl_shutdown = ssl3_shutdown,
.ssl_renegotiate = ssl3_renegotiate,
.ssl_renegotiate_check = ssl3_renegotiate_check,
.ssl_pending = ssl3_pending,
.ssl_read_bytes = dtls1_read_bytes,
.ssl_write_bytes = dtls1_write_app_data_bytes,
.get_cipher = dtls1_get_cipher,
.enc_flags = TLSV1_2_ENC_FLAGS,
};
static const SSL_METHOD DTLSv1_2_client_method_data = {
.dtls = 1,
.server = 0,
.version = DTLS1_2_VERSION,
.min_tls_version = TLS1_2_VERSION,
.max_tls_version = TLS1_2_VERSION,
.ssl_new = dtls1_new,
.ssl_clear = dtls1_clear,
.ssl_free = dtls1_free,
.ssl_accept = ssl_undefined_function,
.ssl_connect = ssl3_connect,
.ssl_shutdown = ssl3_shutdown,
.ssl_renegotiate = ssl3_renegotiate,
.ssl_renegotiate_check = ssl3_renegotiate_check,
.ssl_pending = ssl3_pending,
.ssl_read_bytes = dtls1_read_bytes,
.ssl_write_bytes = dtls1_write_app_data_bytes,
.get_cipher = dtls1_get_cipher,
.enc_flags = TLSV1_2_ENC_FLAGS,
};
const SSL_METHOD *
DTLSv1_client_method(void)
{
return &DTLSv1_client_method_data;
}
const SSL_METHOD *
DTLSv1_method(void)
{
return &DTLSv1_method_data;
}
const SSL_METHOD *
DTLSv1_server_method(void)
{
return &DTLSv1_method_data;
}
const SSL_METHOD *
DTLSv1_2_client_method(void)
{
return &DTLSv1_2_client_method_data;
}
const SSL_METHOD *
DTLSv1_2_method(void)
{
return &DTLSv1_2_method_data;
}
const SSL_METHOD *
DTLSv1_2_server_method(void)
{
return &DTLSv1_2_method_data;
}
const SSL_METHOD *
DTLS_client_method(void)
{
return &DTLS_client_method_data;
}
const SSL_METHOD *
DTLS_method(void)
{
return &DTLS_method_data;
}
const SSL_METHOD *
DTLS_server_method(void)
{
return &DTLS_method_data;
}
#if defined(LIBRESSL_HAS_TLS1_3_CLIENT) && defined(LIBRESSL_HAS_TLS1_3_SERVER)
static const SSL_METHOD TLS_method_data = {
.dtls = 0,
.server = 1,
.version = TLS1_3_VERSION,
.min_tls_version = TLS1_VERSION,
.max_tls_version = TLS1_3_VERSION,
.ssl_new = tls1_new,
.ssl_clear = tls1_clear,
.ssl_free = tls1_free,
.ssl_accept = tls13_legacy_accept,
.ssl_connect = tls13_legacy_connect,
.ssl_shutdown = tls13_legacy_shutdown,
.ssl_renegotiate = ssl_undefined_function,
.ssl_renegotiate_check = ssl_ok,
.ssl_pending = tls13_legacy_pending,
.ssl_read_bytes = tls13_legacy_read_bytes,
.ssl_write_bytes = tls13_legacy_write_bytes,
.get_cipher = ssl3_get_cipher,
.enc_flags = TLSV1_3_ENC_FLAGS,
};
#endif
static const SSL_METHOD TLS_legacy_method_data = {
.dtls = 0,
.server = 1,
.version = TLS1_2_VERSION,
.min_tls_version = TLS1_VERSION,
.max_tls_version = TLS1_2_VERSION,
.ssl_new = tls1_new,
.ssl_clear = tls1_clear,
.ssl_free = tls1_free,
.ssl_accept = ssl3_accept,
.ssl_connect = ssl3_connect,
.ssl_shutdown = ssl3_shutdown,
.ssl_renegotiate = ssl_undefined_function,
.ssl_renegotiate_check = ssl_ok,
.ssl_pending = ssl3_pending,
.ssl_read_bytes = ssl3_read_bytes,
.ssl_write_bytes = ssl3_write_bytes,
.get_cipher = ssl3_get_cipher,
.enc_flags = TLSV1_2_ENC_FLAGS,
};
#if defined(LIBRESSL_HAS_TLS1_3_CLIENT)
static const SSL_METHOD TLS_client_method_data = {
.dtls = 0,
.server = 0,
.version = TLS1_3_VERSION,
.min_tls_version = TLS1_VERSION,
.max_tls_version = TLS1_3_VERSION,
.ssl_new = tls1_new,
.ssl_clear = tls1_clear,
.ssl_free = tls1_free,
.ssl_accept = tls13_legacy_accept,
.ssl_connect = tls13_legacy_connect,
.ssl_shutdown = tls13_legacy_shutdown,
.ssl_renegotiate = ssl_undefined_function,
.ssl_renegotiate_check = ssl_ok,
.ssl_pending = tls13_legacy_pending,
.ssl_read_bytes = tls13_legacy_read_bytes,
.ssl_write_bytes = tls13_legacy_write_bytes,
.get_cipher = ssl3_get_cipher,
.enc_flags = TLSV1_3_ENC_FLAGS,
};
#else
static const SSL_METHOD TLS_legacy_client_method_data = {
.dtls = 0,
.server = 0,
.version = TLS1_2_VERSION,
.min_tls_version = TLS1_VERSION,
.max_tls_version = TLS1_2_VERSION,
.ssl_new = tls1_new,
.ssl_clear = tls1_clear,
.ssl_free = tls1_free,
.ssl_accept = ssl3_accept,
.ssl_connect = ssl3_connect,
.ssl_shutdown = ssl3_shutdown,
.ssl_renegotiate = ssl_undefined_function,
.ssl_renegotiate_check = ssl_ok,
.ssl_pending = ssl3_pending,
.ssl_read_bytes = ssl3_read_bytes,
.ssl_write_bytes = ssl3_write_bytes,
.get_cipher = ssl3_get_cipher,
.enc_flags = TLSV1_2_ENC_FLAGS,
};
#endif
static const SSL_METHOD TLSv1_method_data = {
.dtls = 0,
.server = 1,
.version = TLS1_VERSION,
.min_tls_version = TLS1_VERSION,
.max_tls_version = TLS1_VERSION,
.ssl_new = tls1_new,
.ssl_clear = tls1_clear,
.ssl_free = tls1_free,
.ssl_accept = ssl3_accept,
.ssl_connect = ssl3_connect,
.ssl_shutdown = ssl3_shutdown,
.ssl_renegotiate = ssl3_renegotiate,
.ssl_renegotiate_check = ssl3_renegotiate_check,
.ssl_pending = ssl3_pending,
.ssl_read_bytes = ssl3_read_bytes,
.ssl_write_bytes = ssl3_write_bytes,
.get_cipher = ssl3_get_cipher,
.enc_flags = TLSV1_ENC_FLAGS,
};
static const SSL_METHOD TLSv1_client_method_data = {
.dtls = 0,
.server = 0,
.version = TLS1_VERSION,
.min_tls_version = TLS1_VERSION,
.max_tls_version = TLS1_VERSION,
.ssl_new = tls1_new,
.ssl_clear = tls1_clear,
.ssl_free = tls1_free,
.ssl_accept = ssl_undefined_function,
.ssl_connect = ssl3_connect,
.ssl_shutdown = ssl3_shutdown,
.ssl_renegotiate = ssl3_renegotiate,
.ssl_renegotiate_check = ssl3_renegotiate_check,
.ssl_pending = ssl3_pending,
.ssl_read_bytes = ssl3_read_bytes,
.ssl_write_bytes = ssl3_write_bytes,
.get_cipher = ssl3_get_cipher,
.enc_flags = TLSV1_ENC_FLAGS,
};
static const SSL_METHOD TLSv1_1_method_data = {
.dtls = 0,
.server = 1,
.version = TLS1_1_VERSION,
.min_tls_version = TLS1_1_VERSION,
.max_tls_version = TLS1_1_VERSION,
.ssl_new = tls1_new,
.ssl_clear = tls1_clear,
.ssl_free = tls1_free,
.ssl_accept = ssl3_accept,
.ssl_connect = ssl3_connect,
.ssl_shutdown = ssl3_shutdown,
.ssl_renegotiate = ssl3_renegotiate,
.ssl_renegotiate_check = ssl3_renegotiate_check,
.ssl_pending = ssl3_pending,
.ssl_read_bytes = ssl3_read_bytes,
.ssl_write_bytes = ssl3_write_bytes,
.get_cipher = ssl3_get_cipher,
.enc_flags = TLSV1_1_ENC_FLAGS,
};
static const SSL_METHOD TLSv1_1_client_method_data = {
.dtls = 0,
.server = 0,
.version = TLS1_1_VERSION,
.min_tls_version = TLS1_1_VERSION,
.max_tls_version = TLS1_1_VERSION,
.ssl_new = tls1_new,
.ssl_clear = tls1_clear,
.ssl_free = tls1_free,
.ssl_accept = ssl_undefined_function,
.ssl_connect = ssl3_connect,
.ssl_shutdown = ssl3_shutdown,
.ssl_renegotiate = ssl3_renegotiate,
.ssl_renegotiate_check = ssl3_renegotiate_check,
.ssl_pending = ssl3_pending,
.ssl_read_bytes = ssl3_read_bytes,
.ssl_write_bytes = ssl3_write_bytes,
.get_cipher = ssl3_get_cipher,
.enc_flags = TLSV1_1_ENC_FLAGS,
};
static const SSL_METHOD TLSv1_2_method_data = {
.dtls = 0,
.server = 1,
.version = TLS1_2_VERSION,
.min_tls_version = TLS1_2_VERSION,
.max_tls_version = TLS1_2_VERSION,
.ssl_new = tls1_new,
.ssl_clear = tls1_clear,
.ssl_free = tls1_free,
.ssl_accept = ssl3_accept,
.ssl_connect = ssl3_connect,
.ssl_shutdown = ssl3_shutdown,
.ssl_renegotiate = ssl3_renegotiate,
.ssl_renegotiate_check = ssl3_renegotiate_check,
.ssl_pending = ssl3_pending,
.ssl_read_bytes = ssl3_read_bytes,
.ssl_write_bytes = ssl3_write_bytes,
.get_cipher = ssl3_get_cipher,
.enc_flags = TLSV1_2_ENC_FLAGS,
};
static const SSL_METHOD TLSv1_2_client_method_data = {
.dtls = 0,
.server = 0,
.version = TLS1_2_VERSION,
.min_tls_version = TLS1_2_VERSION,
.max_tls_version = TLS1_2_VERSION,
.ssl_new = tls1_new,
.ssl_clear = tls1_clear,
.ssl_free = tls1_free,
.ssl_accept = ssl_undefined_function,
.ssl_connect = ssl3_connect,
.ssl_shutdown = ssl3_shutdown,
.ssl_renegotiate = ssl3_renegotiate,
.ssl_renegotiate_check = ssl3_renegotiate_check,
.ssl_pending = ssl3_pending,
.ssl_read_bytes = ssl3_read_bytes,
.ssl_write_bytes = ssl3_write_bytes,
.get_cipher = ssl3_get_cipher,
.enc_flags = TLSV1_2_ENC_FLAGS,
};
const SSL_METHOD *
TLS_client_method(void)
{
#if defined(LIBRESSL_HAS_TLS1_3_CLIENT)
return (&TLS_client_method_data);
#else
return (&TLS_legacy_client_method_data);
#endif
}
const SSL_METHOD *
TLS_method(void)
{
#if defined(LIBRESSL_HAS_TLS1_3_CLIENT) && defined(LIBRESSL_HAS_TLS1_3_SERVER)
return (&TLS_method_data);
#else
return tls_legacy_method();
#endif
}
const SSL_METHOD *
TLS_server_method(void)
{
return TLS_method();
}
const SSL_METHOD *
tls_legacy_method(void)
{
return (&TLS_legacy_method_data);
}
const SSL_METHOD *
SSLv23_client_method(void)
{
return TLS_client_method();
}
const SSL_METHOD *
SSLv23_method(void)
{
return TLS_method();
}
const SSL_METHOD *
SSLv23_server_method(void)
{
return TLS_method();
}
const SSL_METHOD *
TLSv1_client_method(void)
{
return (&TLSv1_client_method_data);
}
const SSL_METHOD *
TLSv1_method(void)
{
return (&TLSv1_method_data);
}
const SSL_METHOD *
TLSv1_server_method(void)
{
return (&TLSv1_method_data);
}
const SSL_METHOD *
TLSv1_1_client_method(void)
{
return (&TLSv1_1_client_method_data);
}
const SSL_METHOD *
TLSv1_1_method(void)
{
return (&TLSv1_1_method_data);
}
const SSL_METHOD *
TLSv1_1_server_method(void)
{
return (&TLSv1_1_method_data);
}
const SSL_METHOD *
TLSv1_2_client_method(void)
{
return (&TLSv1_2_client_method_data);
}
const SSL_METHOD *
TLSv1_2_method(void)
{
return (&TLSv1_2_method_data);
}
const SSL_METHOD *
TLSv1_2_server_method(void)
{
return (&TLSv1_2_method_data);
}
const SSL_METHOD *
ssl_get_method(uint16_t version)
{
if (version == TLS1_3_VERSION)
return (TLS_method());
if (version == TLS1_2_VERSION)
return (TLSv1_2_method());
if (version == TLS1_1_VERSION)
return (TLSv1_1_method());
if (version == TLS1_VERSION)
return (TLSv1_method());
if (version == DTLS1_VERSION)
return (DTLSv1_method());
if (version == DTLS1_2_VERSION)
return (DTLSv1_2_method());
return (NULL);
}