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