82c9e90a58
This makes SSLv23_method go through DTLS_ANY_VERSION's version negotiation logic. This allows us to get rid of duplicate ClientHello logic. For compatibility, SSL_METHOD is now split into SSL_PROTOCOL_METHOD and a version. The legacy version-locked methods set min_version and max_version based this version field to emulate the original semantics. As a bonus, we can now handle fragmented ClientHello versions now. Because SSLv23_method is a silly name, deprecate that too and introduce TLS_method. Change-Id: I8b3df2b427ae34c44ecf972f466ad64dc3dbb171
173 lines
5.2 KiB
C
173 lines
5.2 KiB
C
/* 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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#include "ssl_locl.h"
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static const SSL_PROTOCOL_METHOD TLS_protocol_method = {
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ssl3_new,
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ssl3_clear,
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ssl3_free,
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ssl3_accept,
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ssl3_connect,
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ssl3_read,
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ssl3_peek,
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ssl3_write,
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ssl3_shutdown,
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ssl3_renegotiate,
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ssl3_renegotiate_check,
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ssl3_get_message,
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ssl3_read_bytes,
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ssl3_write_bytes,
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ssl3_dispatch_alert,
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ssl3_ctrl,
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ssl3_ctx_ctrl,
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ssl3_pending,
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ssl3_num_ciphers,
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ssl3_get_cipher,
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ssl_undefined_void_function,
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ssl3_callback_ctrl,
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ssl3_ctx_callback_ctrl,
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};
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const SSL_METHOD *TLS_method(void) {
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static const SSL_METHOD method = {
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0,
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&TLS_protocol_method,
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};
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return &method;
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}
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const SSL_METHOD *SSLv23_method(void) {
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return TLS_method();
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}
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/* Legacy version-locked methods. */
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const SSL_METHOD *TLSv1_2_method(void) {
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static const SSL_METHOD method = {
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TLS1_2_VERSION,
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&TLS_protocol_method,
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};
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return &method;
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}
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const SSL_METHOD *TLSv1_1_method(void) {
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static const SSL_METHOD method = {
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TLS1_1_VERSION,
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&TLS_protocol_method,
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};
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return &method;
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}
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const SSL_METHOD *TLSv1_method(void) {
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static const SSL_METHOD method = {
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TLS1_VERSION,
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&TLS_protocol_method,
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};
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return &method;
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}
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const SSL_METHOD *SSLv3_method(void) {
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static const SSL_METHOD method = {
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SSL3_VERSION,
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&TLS_protocol_method,
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};
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return &method;
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}
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/* Legacy side-specific methods. */
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const SSL_METHOD *TLSv1_2_server_method(void) {
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return TLSv1_2_method();
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}
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const SSL_METHOD *TLSv1_1_server_method(void) {
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return TLSv1_1_method();
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}
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const SSL_METHOD *TLSv1_server_method(void) {
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return TLSv1_method();
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}
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const SSL_METHOD *SSLv3_server_method(void) {
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return SSLv3_method();
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}
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const SSL_METHOD *TLSv1_2_client_method(void) {
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return TLSv1_2_method();
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}
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const SSL_METHOD *TLSv1_1_client_method(void) {
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return TLSv1_1_method();
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}
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const SSL_METHOD *TLSv1_client_method(void) {
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return TLSv1_method();
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}
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const SSL_METHOD *SSLv3_client_method(void) {
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return SSLv3_method();
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}
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const SSL_METHOD *SSLv23_server_method(void) {
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return SSLv23_method();
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}
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const SSL_METHOD *SSLv23_client_method(void) {
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return SSLv23_method();
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}
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