lib/libssl/t1_meth.c

   1 /* $OpenBSD: t1_meth.c,v 1.23 2017/01/26 05:31:25 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 <stdio.h>
  60
  61 #include <openssl/objects.h>
  62
  63 #include "ssl_locl.h"
  64
  65 static const SSL_METHOD *tls1_get_method(int ver);
  66
  67 static const SSL_METHOD_INTERNAL TLS_method_internal_data = {
  68         .version = TLS1_2_VERSION,
  69         .min_version = TLS1_VERSION,
  70         .max_version = TLS1_2_VERSION,
  71         .ssl_new = tls1_new,
  72         .ssl_clear = tls1_clear,
  73         .ssl_free = tls1_free,
  74         .ssl_accept = ssl3_accept,
  75         .ssl_connect = ssl3_connect,
  76         .ssl_read = ssl3_read,
  77         .ssl_peek = ssl3_peek,
  78         .ssl_write = ssl3_write,
  79         .ssl_shutdown = ssl3_shutdown,
  80         .ssl_pending = ssl3_pending,
  81         .get_ssl_method = tls1_get_method,
  82         .get_timeout = tls1_default_timeout,
  83         .ssl_version = ssl_undefined_void_function,
  84         .ssl_renegotiate = ssl_undefined_function,
  85         .ssl_renegotiate_check = ssl_ok,
  86         .ssl_get_message = ssl3_get_message,
  87         .ssl_read_bytes = ssl3_read_bytes,
  88         .ssl_write_bytes = ssl3_write_bytes,
  89         .ssl3_enc = &TLSv1_2_enc_data,
  90 };
  91
  92 static const SSL_METHOD TLS_method_data = {
  93         .ssl_dispatch_alert = ssl3_dispatch_alert,
  94         .num_ciphers = ssl3_num_ciphers,
  95         .get_cipher = ssl3_get_cipher,
  96         .get_cipher_by_char = ssl3_get_cipher_by_char,
  97         .put_cipher_by_char = ssl3_put_cipher_by_char,
  98         .internal = &TLS_method_internal_data,
  99 };
 100
 101 static const SSL_METHOD_INTERNAL TLSv1_method_internal_data = {
 102         .version = TLS1_VERSION,
 103         .min_version = TLS1_VERSION,
 104         .max_version = TLS1_VERSION,
 105         .ssl_new = tls1_new,
 106         .ssl_clear = tls1_clear,
 107         .ssl_free = tls1_free,
 108         .ssl_accept = ssl3_accept,
 109         .ssl_connect = ssl3_connect,
 110         .ssl_read = ssl3_read,
 111         .ssl_peek = ssl3_peek,
 112         .ssl_write = ssl3_write,
 113         .ssl_shutdown = ssl3_shutdown,
 114         .ssl_pending = ssl3_pending,
 115         .get_ssl_method = tls1_get_method,
 116         .get_timeout = tls1_default_timeout,
 117         .ssl_version = ssl_undefined_void_function,
 118         .ssl_renegotiate = ssl3_renegotiate,
 119         .ssl_renegotiate_check = ssl3_renegotiate_check,
 120         .ssl_get_message = ssl3_get_message,
 121         .ssl_read_bytes = ssl3_read_bytes,
 122         .ssl_write_bytes = ssl3_write_bytes,
 123         .ssl3_enc = &TLSv1_enc_data,
 124 };
 125
 126 static const SSL_METHOD TLSv1_method_data = {
 127         .ssl_dispatch_alert = ssl3_dispatch_alert,
 128         .num_ciphers = ssl3_num_ciphers,
 129         .get_cipher = ssl3_get_cipher,
 130         .get_cipher_by_char = ssl3_get_cipher_by_char,
 131         .put_cipher_by_char = ssl3_put_cipher_by_char,
 132         .internal = &TLSv1_method_internal_data,
 133 };
 134
 135 static const SSL_METHOD_INTERNAL TLSv1_1_method_internal_data = {
 136         .version = TLS1_1_VERSION,
 137         .min_version = TLS1_1_VERSION,
 138         .max_version = TLS1_1_VERSION,
 139         .ssl_new = tls1_new,
 140         .ssl_clear = tls1_clear,
 141         .ssl_free = tls1_free,
 142         .ssl_accept = ssl3_accept,
 143         .ssl_connect = ssl3_connect,
 144         .ssl_read = ssl3_read,
 145         .ssl_peek = ssl3_peek,
 146         .ssl_write = ssl3_write,
 147         .ssl_shutdown = ssl3_shutdown,
 148         .ssl_pending = ssl3_pending,
 149         .get_ssl_method = tls1_get_method,
 150         .get_timeout = tls1_default_timeout,
 151         .ssl_version = ssl_undefined_void_function,
 152         .ssl_renegotiate = ssl3_renegotiate,
 153         .ssl_renegotiate_check = ssl3_renegotiate_check,
 154         .ssl_get_message = ssl3_get_message,
 155         .ssl_read_bytes = ssl3_read_bytes,
 156         .ssl_write_bytes = ssl3_write_bytes,
 157         .ssl3_enc = &TLSv1_1_enc_data,
 158 };
 159
 160 static const SSL_METHOD TLSv1_1_method_data = {
 161         .ssl_dispatch_alert = ssl3_dispatch_alert,
 162         .num_ciphers = ssl3_num_ciphers,
 163         .get_cipher = ssl3_get_cipher,
 164         .get_cipher_by_char = ssl3_get_cipher_by_char,
 165         .put_cipher_by_char = ssl3_put_cipher_by_char,
 166         .internal = &TLSv1_1_method_internal_data,
 167 };
 168
 169 static const SSL_METHOD_INTERNAL TLSv1_2_method_internal_data = {
 170         .version = TLS1_2_VERSION,
 171         .min_version = TLS1_2_VERSION,
 172         .max_version = TLS1_2_VERSION,
 173         .ssl_new = tls1_new,
 174         .ssl_clear = tls1_clear,
 175         .ssl_free = tls1_free,
 176         .ssl_accept = ssl3_accept,
 177         .ssl_connect = ssl3_connect,
 178         .ssl_read = ssl3_read,
 179         .ssl_peek = ssl3_peek,
 180         .ssl_write = ssl3_write,
 181         .ssl_shutdown = ssl3_shutdown,
 182         .ssl_pending = ssl3_pending,
 183         .get_ssl_method = tls1_get_method,
 184         .get_timeout = tls1_default_timeout,
 185         .ssl_version = ssl_undefined_void_function,
 186         .ssl_renegotiate = ssl3_renegotiate,
 187         .ssl_renegotiate_check = ssl3_renegotiate_check,
 188         .ssl_get_message = ssl3_get_message,
 189         .ssl_read_bytes = ssl3_read_bytes,
 190         .ssl_write_bytes = ssl3_write_bytes,
 191         .ssl3_enc = &TLSv1_2_enc_data,
 192 };
 193
 194 static const SSL_METHOD TLSv1_2_method_data = {
 195         .ssl_dispatch_alert = ssl3_dispatch_alert,
 196         .num_ciphers = ssl3_num_ciphers,
 197         .get_cipher = ssl3_get_cipher,
 198         .get_cipher_by_char = ssl3_get_cipher_by_char,
 199         .put_cipher_by_char = ssl3_put_cipher_by_char,
 200         .internal = &TLSv1_2_method_internal_data,
 201 };
 202
 203 static const SSL_METHOD *
 204 tls1_get_method(int ver)
 205 {
 206         if (ver == TLS1_2_VERSION)
 207                 return (TLSv1_2_method());
 208         if (ver == TLS1_1_VERSION)
 209                 return (TLSv1_1_method());
 210         if (ver == TLS1_VERSION)
 211                 return (TLSv1_method());
 212         return (NULL);
 213 }
 214
 215 const SSL_METHOD *
 216 SSLv23_method(void)
 217 {
 218         return (TLS_method());
 219 }
 220
 221 const SSL_METHOD *
 222 TLS_method(void)
 223 {
 224         return &TLS_method_data;
 225 }
 226
 227 const SSL_METHOD *
 228 TLSv1_method(void)
 229 {
 230         return (&TLSv1_method_data);
 231 }
 232
 233 const SSL_METHOD *
 234 TLSv1_1_method(void)
 235 {
 236         return (&TLSv1_1_method_data);
 237 }
 238
 239 const SSL_METHOD *
 240 TLSv1_2_method(void)
 241 {
 242         return (&TLSv1_2_method_data);
 243 }