2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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3 * All rights reserved.
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5 * This package is an SSL implementation written
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6 * by Eric Young (eay@cryptsoft.com).
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7 * The implementation was written so as to conform with Netscapes SSL.
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9 * This library is free for commercial and non-commercial use as long as
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10 * the following conditions are aheared to. The following conditions
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11 * apply to all code found in this distribution, be it the RC4, RSA,
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12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
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13 * included with this distribution is covered by the same copyright terms
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14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
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16 * Copyright remains Eric Young's, and as such any Copyright notices in
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17 * the code are not to be removed.
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18 * If this package is used in a product, Eric Young should be given attribution
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19 * as the author of the parts of the library used.
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20 * This can be in the form of a textual message at program startup or
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21 * in documentation (online or textual) provided with the package.
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23 * Redistribution and use in source and binary forms, with or without
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24 * modification, are permitted provided that the following conditions
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26 * 1. Redistributions of source code must retain the copyright
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27 * notice, this list of conditions and the following disclaimer.
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28 * 2. Redistributions in binary form must reproduce the above copyright
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29 * notice, this list of conditions and the following disclaimer in the
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30 * documentation and/or other materials provided with the distribution.
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31 * 3. All advertising materials mentioning features or use of this software
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32 * must display the following acknowledgement:
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33 * "This product includes cryptographic software written by
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34 * Eric Young (eay@cryptsoft.com)"
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35 * The word 'cryptographic' can be left out if the rouines from the library
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36 * being used are not cryptographic related :-).
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37 * 4. If you include any Windows specific code (or a derivative thereof) from
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38 * the apps directory (application code) you must include an acknowledgement:
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39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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53 * The licence and distribution terms for any publically available version or
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54 * derivative of this code cannot be changed. i.e. this code cannot simply be
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55 * copied and put under another distribution licence
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56 * [including the GNU Public Licence.]
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58 /* ====================================================================
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59 * Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
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61 * Redistribution and use in source and binary forms, with or without
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62 * modification, are permitted provided that the following conditions
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65 * 1. Redistributions of source code must retain the above copyright
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66 * notice, this list of conditions and the following disclaimer.
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68 * 2. Redistributions in binary form must reproduce the above copyright
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69 * notice, this list of conditions and the following disclaimer in
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70 * the documentation and/or other materials provided with the
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73 * 3. All advertising materials mentioning features or use of this
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74 * software must display the following acknowledgment:
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75 * "This product includes software developed by the OpenSSL Project
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76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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79 * endorse or promote products derived from this software without
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80 * prior written permission. For written permission, please contact
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81 * openssl-core@openssl.org.
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83 * 5. Products derived from this software may not be called "OpenSSL"
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84 * nor may "OpenSSL" appear in their names without prior written
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85 * permission of the OpenSSL Project.
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87 * 6. Redistributions of any form whatsoever must retain the following
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89 * "This product includes software developed by the OpenSSL Project
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90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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103 * OF THE POSSIBILITY OF SUCH DAMAGE.
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104 * ====================================================================
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106 * This product includes cryptographic software written by Eric Young
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107 * (eay@cryptsoft.com). This product includes software written by Tim
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108 * Hudson (tjh@cryptsoft.com).
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111 /* ====================================================================
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112 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
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113 * ECC cipher suite support in OpenSSL originally developed by
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114 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
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117 #ifndef HEADER_SSL3_H
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118 #define HEADER_SSL3_H
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120 #ifndef OPENSSL_NO_COMP
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121 #include <openssl/comp.h>
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123 #include <openssl/buffer.h>
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124 #include <openssl/evp.h>
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125 #include <openssl/ssl.h>
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131 /* Signalling cipher suite value: from draft-ietf-tls-renegotiation-03.txt */
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132 #define SSL3_CK_SCSV 0x030000FF
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134 #define SSL3_CK_RSA_NULL_MD5 0x03000001
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135 #define SSL3_CK_RSA_NULL_SHA 0x03000002
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136 #define SSL3_CK_RSA_RC4_40_MD5 0x03000003
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137 #define SSL3_CK_RSA_RC4_128_MD5 0x03000004
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138 #define SSL3_CK_RSA_RC4_128_SHA 0x03000005
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139 #define SSL3_CK_RSA_RC2_40_MD5 0x03000006
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140 #define SSL3_CK_RSA_IDEA_128_SHA 0x03000007
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141 #define SSL3_CK_RSA_DES_40_CBC_SHA 0x03000008
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142 #define SSL3_CK_RSA_DES_64_CBC_SHA 0x03000009
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143 #define SSL3_CK_RSA_DES_192_CBC3_SHA 0x0300000A
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145 #define SSL3_CK_DH_DSS_DES_40_CBC_SHA 0x0300000B
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146 #define SSL3_CK_DH_DSS_DES_64_CBC_SHA 0x0300000C
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147 #define SSL3_CK_DH_DSS_DES_192_CBC3_SHA 0x0300000D
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148 #define SSL3_CK_DH_RSA_DES_40_CBC_SHA 0x0300000E
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149 #define SSL3_CK_DH_RSA_DES_64_CBC_SHA 0x0300000F
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150 #define SSL3_CK_DH_RSA_DES_192_CBC3_SHA 0x03000010
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152 #define SSL3_CK_EDH_DSS_DES_40_CBC_SHA 0x03000011
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153 #define SSL3_CK_EDH_DSS_DES_64_CBC_SHA 0x03000012
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154 #define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA 0x03000013
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155 #define SSL3_CK_EDH_RSA_DES_40_CBC_SHA 0x03000014
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156 #define SSL3_CK_EDH_RSA_DES_64_CBC_SHA 0x03000015
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157 #define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA 0x03000016
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159 #define SSL3_CK_ADH_RC4_40_MD5 0x03000017
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160 #define SSL3_CK_ADH_RC4_128_MD5 0x03000018
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161 #define SSL3_CK_ADH_DES_40_CBC_SHA 0x03000019
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162 #define SSL3_CK_ADH_DES_64_CBC_SHA 0x0300001A
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163 #define SSL3_CK_ADH_DES_192_CBC_SHA 0x0300001B
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166 #define SSL3_CK_FZA_DMS_NULL_SHA 0x0300001C
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167 #define SSL3_CK_FZA_DMS_FZA_SHA 0x0300001D
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168 #if 0 /* Because it clashes with KRB5, is never used any more, and is safe
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169 to remove according to David Hopwood <david.hopwood@zetnet.co.uk>
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170 of the ietf-tls list */
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171 #define SSL3_CK_FZA_DMS_RC4_SHA 0x0300001E
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175 /* VRS Additional Kerberos5 entries
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177 #define SSL3_CK_KRB5_DES_64_CBC_SHA 0x0300001E
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178 #define SSL3_CK_KRB5_DES_192_CBC3_SHA 0x0300001F
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179 #define SSL3_CK_KRB5_RC4_128_SHA 0x03000020
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180 #define SSL3_CK_KRB5_IDEA_128_CBC_SHA 0x03000021
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181 #define SSL3_CK_KRB5_DES_64_CBC_MD5 0x03000022
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182 #define SSL3_CK_KRB5_DES_192_CBC3_MD5 0x03000023
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183 #define SSL3_CK_KRB5_RC4_128_MD5 0x03000024
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184 #define SSL3_CK_KRB5_IDEA_128_CBC_MD5 0x03000025
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186 #define SSL3_CK_KRB5_DES_40_CBC_SHA 0x03000026
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187 #define SSL3_CK_KRB5_RC2_40_CBC_SHA 0x03000027
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188 #define SSL3_CK_KRB5_RC4_40_SHA 0x03000028
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189 #define SSL3_CK_KRB5_DES_40_CBC_MD5 0x03000029
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190 #define SSL3_CK_KRB5_RC2_40_CBC_MD5 0x0300002A
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191 #define SSL3_CK_KRB5_RC4_40_MD5 0x0300002B
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193 #define SSL3_TXT_RSA_NULL_MD5 "NULL-MD5"
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194 #define SSL3_TXT_RSA_NULL_SHA "NULL-SHA"
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195 #define SSL3_TXT_RSA_RC4_40_MD5 "EXP-RC4-MD5"
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196 #define SSL3_TXT_RSA_RC4_128_MD5 "RC4-MD5"
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197 #define SSL3_TXT_RSA_RC4_128_SHA "RC4-SHA"
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198 #define SSL3_TXT_RSA_RC2_40_MD5 "EXP-RC2-CBC-MD5"
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199 #define SSL3_TXT_RSA_IDEA_128_SHA "IDEA-CBC-SHA"
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200 #define SSL3_TXT_RSA_DES_40_CBC_SHA "EXP-DES-CBC-SHA"
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201 #define SSL3_TXT_RSA_DES_64_CBC_SHA "DES-CBC-SHA"
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202 #define SSL3_TXT_RSA_DES_192_CBC3_SHA "DES-CBC3-SHA"
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204 #define SSL3_TXT_DH_DSS_DES_40_CBC_SHA "EXP-DH-DSS-DES-CBC-SHA"
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205 #define SSL3_TXT_DH_DSS_DES_64_CBC_SHA "DH-DSS-DES-CBC-SHA"
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206 #define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA "DH-DSS-DES-CBC3-SHA"
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207 #define SSL3_TXT_DH_RSA_DES_40_CBC_SHA "EXP-DH-RSA-DES-CBC-SHA"
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208 #define SSL3_TXT_DH_RSA_DES_64_CBC_SHA "DH-RSA-DES-CBC-SHA"
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209 #define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA "DH-RSA-DES-CBC3-SHA"
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211 #define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA "EXP-EDH-DSS-DES-CBC-SHA"
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212 #define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA "EDH-DSS-DES-CBC-SHA"
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213 #define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA "EDH-DSS-DES-CBC3-SHA"
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214 #define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA "EXP-EDH-RSA-DES-CBC-SHA"
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215 #define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA "EDH-RSA-DES-CBC-SHA"
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216 #define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA "EDH-RSA-DES-CBC3-SHA"
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218 #define SSL3_TXT_ADH_RC4_40_MD5 "EXP-ADH-RC4-MD5"
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219 #define SSL3_TXT_ADH_RC4_128_MD5 "ADH-RC4-MD5"
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220 #define SSL3_TXT_ADH_DES_40_CBC_SHA "EXP-ADH-DES-CBC-SHA"
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221 #define SSL3_TXT_ADH_DES_64_CBC_SHA "ADH-DES-CBC-SHA"
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222 #define SSL3_TXT_ADH_DES_192_CBC_SHA "ADH-DES-CBC3-SHA"
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225 #define SSL3_TXT_FZA_DMS_NULL_SHA "FZA-NULL-SHA"
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226 #define SSL3_TXT_FZA_DMS_FZA_SHA "FZA-FZA-CBC-SHA"
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227 #define SSL3_TXT_FZA_DMS_RC4_SHA "FZA-RC4-SHA"
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230 #define SSL3_TXT_KRB5_DES_64_CBC_SHA "KRB5-DES-CBC-SHA"
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231 #define SSL3_TXT_KRB5_DES_192_CBC3_SHA "KRB5-DES-CBC3-SHA"
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232 #define SSL3_TXT_KRB5_RC4_128_SHA "KRB5-RC4-SHA"
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233 #define SSL3_TXT_KRB5_IDEA_128_CBC_SHA "KRB5-IDEA-CBC-SHA"
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234 #define SSL3_TXT_KRB5_DES_64_CBC_MD5 "KRB5-DES-CBC-MD5"
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235 #define SSL3_TXT_KRB5_DES_192_CBC3_MD5 "KRB5-DES-CBC3-MD5"
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236 #define SSL3_TXT_KRB5_RC4_128_MD5 "KRB5-RC4-MD5"
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237 #define SSL3_TXT_KRB5_IDEA_128_CBC_MD5 "KRB5-IDEA-CBC-MD5"
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239 #define SSL3_TXT_KRB5_DES_40_CBC_SHA "EXP-KRB5-DES-CBC-SHA"
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240 #define SSL3_TXT_KRB5_RC2_40_CBC_SHA "EXP-KRB5-RC2-CBC-SHA"
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241 #define SSL3_TXT_KRB5_RC4_40_SHA "EXP-KRB5-RC4-SHA"
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242 #define SSL3_TXT_KRB5_DES_40_CBC_MD5 "EXP-KRB5-DES-CBC-MD5"
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243 #define SSL3_TXT_KRB5_RC2_40_CBC_MD5 "EXP-KRB5-RC2-CBC-MD5"
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244 #define SSL3_TXT_KRB5_RC4_40_MD5 "EXP-KRB5-RC4-MD5"
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246 #define SSL3_SSL_SESSION_ID_LENGTH 32
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247 #define SSL3_MAX_SSL_SESSION_ID_LENGTH 32
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249 #define SSL3_MASTER_SECRET_SIZE 48
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250 #define SSL3_RANDOM_SIZE 32
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251 #define SSL3_SESSION_ID_SIZE 32
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252 #define SSL3_RT_HEADER_LENGTH 5
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254 #ifndef SSL3_ALIGN_PAYLOAD
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255 /* Some will argue that this increases memory footprint, but it's
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256 * not actually true. Point is that malloc has to return at least
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257 * 64-bit aligned pointers, meaning that allocating 5 bytes wastes
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258 * 3 bytes in either case. Suggested pre-gaping simply moves these
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259 * wasted bytes from the end of allocated region to its front,
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260 * but makes data payload aligned, which improves performance:-) */
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261 # define SSL3_ALIGN_PAYLOAD 8
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263 # if (SSL3_ALIGN_PAYLOAD&(SSL3_ALIGN_PAYLOAD-1))!=0
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264 # error "insane SSL3_ALIGN_PAYLOAD"
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265 # undef SSL3_ALIGN_PAYLOAD
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269 /* This is the maximum MAC (digest) size used by the SSL library.
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270 * Currently maximum of 20 is used by SHA1, but we reserve for
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271 * future extension for 512-bit hashes.
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274 #define SSL3_RT_MAX_MD_SIZE 64
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276 /* Maximum block size used in all ciphersuites. Currently 16 for AES.
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279 #define SSL_RT_MAX_CIPHER_BLOCK_SIZE 16
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281 #define SSL3_RT_MAX_EXTRA (16384)
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283 /* Maximum plaintext length: defined by SSL/TLS standards */
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284 #define SSL3_RT_MAX_PLAIN_LENGTH 16384
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285 /* Maximum compression overhead: defined by SSL/TLS standards */
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286 #define SSL3_RT_MAX_COMPRESSED_OVERHEAD 1024
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288 /* The standards give a maximum encryption overhead of 1024 bytes.
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289 * In practice the value is lower than this. The overhead is the maximum
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290 * number of padding bytes (256) plus the mac size.
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292 #define SSL3_RT_MAX_ENCRYPTED_OVERHEAD (256 + SSL3_RT_MAX_MD_SIZE)
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294 /* OpenSSL currently only uses a padding length of at most one block so
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295 * the send overhead is smaller.
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298 #define SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD \
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299 (SSL_RT_MAX_CIPHER_BLOCK_SIZE + SSL3_RT_MAX_MD_SIZE)
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301 /* If compression isn't used don't include the compression overhead */
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303 #ifdef OPENSSL_NO_COMP
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304 #define SSL3_RT_MAX_COMPRESSED_LENGTH SSL3_RT_MAX_PLAIN_LENGTH
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306 #define SSL3_RT_MAX_COMPRESSED_LENGTH \
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307 (SSL3_RT_MAX_PLAIN_LENGTH+SSL3_RT_MAX_COMPRESSED_OVERHEAD)
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309 #define SSL3_RT_MAX_ENCRYPTED_LENGTH \
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310 (SSL3_RT_MAX_ENCRYPTED_OVERHEAD+SSL3_RT_MAX_COMPRESSED_LENGTH)
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311 #define SSL3_RT_MAX_PACKET_SIZE \
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312 (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH)
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314 #define SSL3_MD_CLIENT_FINISHED_CONST "\x43\x4C\x4E\x54"
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315 #define SSL3_MD_SERVER_FINISHED_CONST "\x53\x52\x56\x52"
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317 #define SSL3_VERSION 0x0300
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318 #define SSL3_VERSION_MAJOR 0x03
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319 #define SSL3_VERSION_MINOR 0x00
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321 #define SSL3_RT_CHANGE_CIPHER_SPEC 20
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322 #define SSL3_RT_ALERT 21
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323 #define SSL3_RT_HANDSHAKE 22
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324 #define SSL3_RT_APPLICATION_DATA 23
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326 #define SSL3_AL_WARNING 1
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327 #define SSL3_AL_FATAL 2
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329 #define SSL3_AD_CLOSE_NOTIFY 0
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330 #define SSL3_AD_UNEXPECTED_MESSAGE 10 /* fatal */
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331 #define SSL3_AD_BAD_RECORD_MAC 20 /* fatal */
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332 #define SSL3_AD_DECOMPRESSION_FAILURE 30 /* fatal */
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333 #define SSL3_AD_HANDSHAKE_FAILURE 40 /* fatal */
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334 #define SSL3_AD_NO_CERTIFICATE 41
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335 #define SSL3_AD_BAD_CERTIFICATE 42
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336 #define SSL3_AD_UNSUPPORTED_CERTIFICATE 43
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337 #define SSL3_AD_CERTIFICATE_REVOKED 44
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338 #define SSL3_AD_CERTIFICATE_EXPIRED 45
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339 #define SSL3_AD_CERTIFICATE_UNKNOWN 46
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340 #define SSL3_AD_ILLEGAL_PARAMETER 47 /* fatal */
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342 typedef struct ssl3_record_st
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344 /*r */ int type; /* type of record */
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345 /*rw*/ unsigned int length; /* How many bytes available */
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346 /*r */ unsigned int off; /* read/write offset into 'buf' */
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347 /*rw*/ unsigned char *data; /* pointer to the record data */
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348 /*rw*/ unsigned char *input; /* where the decode bytes are */
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349 /*r */ unsigned char *comp; /* only used with decompression - malloc()ed */
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350 /*r */ unsigned long epoch; /* epoch number, needed by DTLS1 */
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351 /*r */ unsigned char seq_num[8]; /* sequence number, needed by DTLS1 */
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354 typedef struct ssl3_buffer_st
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356 unsigned char *buf; /* at least SSL3_RT_MAX_PACKET_SIZE bytes,
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357 * see ssl3_setup_buffers() */
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358 size_t len; /* buffer size */
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359 int offset; /* where to 'copy from' */
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360 int left; /* how many bytes left */
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363 #define SSL3_CT_RSA_SIGN 1
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364 #define SSL3_CT_DSS_SIGN 2
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365 #define SSL3_CT_RSA_FIXED_DH 3
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366 #define SSL3_CT_DSS_FIXED_DH 4
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367 #define SSL3_CT_RSA_EPHEMERAL_DH 5
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368 #define SSL3_CT_DSS_EPHEMERAL_DH 6
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369 #define SSL3_CT_FORTEZZA_DMS 20
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370 /* SSL3_CT_NUMBER is used to size arrays and it must be large
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371 * enough to contain all of the cert types defined either for
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374 #define SSL3_CT_NUMBER 9
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377 #define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS 0x0001
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378 #define SSL3_FLAGS_DELAY_CLIENT_FINISHED 0x0002
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379 #define SSL3_FLAGS_POP_BUFFER 0x0004
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380 #define TLS1_FLAGS_TLS_PADDING_BUG 0x0008
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381 #define TLS1_FLAGS_SKIP_CERT_VERIFY 0x0010
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383 typedef struct ssl3_state_st
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386 int delay_buf_pop_ret;
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388 unsigned char read_sequence[8];
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389 int read_mac_secret_size;
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390 unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
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391 unsigned char write_sequence[8];
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392 int write_mac_secret_size;
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393 unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
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395 unsigned char server_random[SSL3_RANDOM_SIZE];
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396 unsigned char client_random[SSL3_RANDOM_SIZE];
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398 /* flags for countermeasure against known-IV weakness */
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399 int need_empty_fragments;
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400 int empty_fragment_done;
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402 /* The value of 'extra' when the buffers were initialized */
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405 SSL3_BUFFER rbuf; /* read IO goes into here */
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406 SSL3_BUFFER wbuf; /* write IO goes into here */
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408 SSL3_RECORD rrec; /* each decoded record goes in here */
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409 SSL3_RECORD wrec; /* goes out from here */
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411 /* storage for Alert/Handshake protocol data received but not
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412 * yet processed by ssl3_read_bytes: */
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413 unsigned char alert_fragment[2];
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414 unsigned int alert_fragment_len;
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415 unsigned char handshake_fragment[4];
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416 unsigned int handshake_fragment_len;
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418 /* partial write - check the numbers match */
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419 unsigned int wnum; /* number of bytes sent so far */
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420 int wpend_tot; /* number bytes written */
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422 int wpend_ret; /* number of bytes submitted */
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423 const unsigned char *wpend_buf;
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425 /* used during startup, digest all incoming/outgoing packets */
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426 BIO *handshake_buffer;
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427 /* When set of handshake digests is determined, buffer is hashed
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428 * and freed and MD_CTX-es for all required digests are stored in
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430 EVP_MD_CTX **handshake_dgst;
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431 /* this is set whenerver we see a change_cipher_spec message
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432 * come in when we are not looking for one */
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433 int change_cipher_spec;
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437 /* we allow one fatal and one warning alert to be outstanding,
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438 * send close alert via the warning alert */
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439 int alert_dispatch;
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440 unsigned char send_alert[2];
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442 /* This flag is set when we should renegotiate ASAP, basically when
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443 * there is no more data in the read or write buffers */
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445 int total_renegotiations;
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446 int num_renegotiations;
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448 int in_read_app_data;
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450 /* Opaque PRF input as used for the current handshake.
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451 * These fields are used only if TLSEXT_TYPE_opaque_prf_input is defined
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452 * (otherwise, they are merely present to improve binary compatibility) */
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453 void *client_opaque_prf_input;
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454 size_t client_opaque_prf_input_len;
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455 void *server_opaque_prf_input;
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456 size_t server_opaque_prf_input_len;
\r
459 /* actually only needs to be 16+20 */
\r
460 unsigned char cert_verify_md[EVP_MAX_MD_SIZE*2];
\r
462 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
\r
463 unsigned char finish_md[EVP_MAX_MD_SIZE*2];
\r
465 unsigned char peer_finish_md[EVP_MAX_MD_SIZE*2];
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466 int peer_finish_md_len;
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468 unsigned long message_size;
\r
471 /* used to hold the new cipher we are going to use */
\r
472 const SSL_CIPHER *new_cipher;
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473 #ifndef OPENSSL_NO_DH
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477 #ifndef OPENSSL_NO_ECDH
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478 EC_KEY *ecdh; /* holds short lived ECDH key */
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481 /* used when SSL_ST_FLUSH_DATA is entered */
\r
486 /* used for certificate requests */
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489 char ctype[SSL3_CT_NUMBER];
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490 STACK_OF(X509_NAME) *ca_names;
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494 int key_block_length;
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495 unsigned char *key_block;
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497 const EVP_CIPHER *new_sym_enc;
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498 const EVP_MD *new_hash;
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499 int new_mac_pkey_type;
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500 int new_mac_secret_size;
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501 #ifndef OPENSSL_NO_COMP
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502 const SSL_COMP *new_compression;
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504 char *new_compression;
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509 /* Connection binding to prevent renegotiation attacks */
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510 unsigned char previous_client_finished[EVP_MAX_MD_SIZE];
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511 unsigned char previous_client_finished_len;
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512 unsigned char previous_server_finished[EVP_MAX_MD_SIZE];
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513 unsigned char previous_server_finished_len;
\r
514 int send_connection_binding; /* TODOEKR */
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521 #define SSL3_ST_CW_FLUSH (0x100|SSL_ST_CONNECT)
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522 /* write to server */
\r
523 #define SSL3_ST_CW_CLNT_HELLO_A (0x110|SSL_ST_CONNECT)
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524 #define SSL3_ST_CW_CLNT_HELLO_B (0x111|SSL_ST_CONNECT)
\r
525 /* read from server */
\r
526 #define SSL3_ST_CR_SRVR_HELLO_A (0x120|SSL_ST_CONNECT)
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527 #define SSL3_ST_CR_SRVR_HELLO_B (0x121|SSL_ST_CONNECT)
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528 #define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A (0x126|SSL_ST_CONNECT)
\r
529 #define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B (0x127|SSL_ST_CONNECT)
\r
530 #define SSL3_ST_CR_CERT_A (0x130|SSL_ST_CONNECT)
\r
531 #define SSL3_ST_CR_CERT_B (0x131|SSL_ST_CONNECT)
\r
532 #define SSL3_ST_CR_KEY_EXCH_A (0x140|SSL_ST_CONNECT)
\r
533 #define SSL3_ST_CR_KEY_EXCH_B (0x141|SSL_ST_CONNECT)
\r
534 #define SSL3_ST_CR_CERT_REQ_A (0x150|SSL_ST_CONNECT)
\r
535 #define SSL3_ST_CR_CERT_REQ_B (0x151|SSL_ST_CONNECT)
\r
536 #define SSL3_ST_CR_SRVR_DONE_A (0x160|SSL_ST_CONNECT)
\r
537 #define SSL3_ST_CR_SRVR_DONE_B (0x161|SSL_ST_CONNECT)
\r
538 /* write to server */
\r
539 #define SSL3_ST_CW_CERT_A (0x170|SSL_ST_CONNECT)
\r
540 #define SSL3_ST_CW_CERT_B (0x171|SSL_ST_CONNECT)
\r
541 #define SSL3_ST_CW_CERT_C (0x172|SSL_ST_CONNECT)
\r
542 #define SSL3_ST_CW_CERT_D (0x173|SSL_ST_CONNECT)
\r
543 #define SSL3_ST_CW_KEY_EXCH_A (0x180|SSL_ST_CONNECT)
\r
544 #define SSL3_ST_CW_KEY_EXCH_B (0x181|SSL_ST_CONNECT)
\r
545 #define SSL3_ST_CW_CERT_VRFY_A (0x190|SSL_ST_CONNECT)
\r
546 #define SSL3_ST_CW_CERT_VRFY_B (0x191|SSL_ST_CONNECT)
\r
547 #define SSL3_ST_CW_CHANGE_A (0x1A0|SSL_ST_CONNECT)
\r
548 #define SSL3_ST_CW_CHANGE_B (0x1A1|SSL_ST_CONNECT)
\r
549 #define SSL3_ST_CW_FINISHED_A (0x1B0|SSL_ST_CONNECT)
\r
550 #define SSL3_ST_CW_FINISHED_B (0x1B1|SSL_ST_CONNECT)
\r
551 /* read from server */
\r
552 #define SSL3_ST_CR_CHANGE_A (0x1C0|SSL_ST_CONNECT)
\r
553 #define SSL3_ST_CR_CHANGE_B (0x1C1|SSL_ST_CONNECT)
\r
554 #define SSL3_ST_CR_FINISHED_A (0x1D0|SSL_ST_CONNECT)
\r
555 #define SSL3_ST_CR_FINISHED_B (0x1D1|SSL_ST_CONNECT)
\r
556 #define SSL3_ST_CR_SESSION_TICKET_A (0x1E0|SSL_ST_CONNECT)
\r
557 #define SSL3_ST_CR_SESSION_TICKET_B (0x1E1|SSL_ST_CONNECT)
\r
558 #define SSL3_ST_CR_CERT_STATUS_A (0x1F0|SSL_ST_CONNECT)
\r
559 #define SSL3_ST_CR_CERT_STATUS_B (0x1F1|SSL_ST_CONNECT)
\r
563 #define SSL3_ST_SW_FLUSH (0x100|SSL_ST_ACCEPT)
\r
564 /* read from client */
\r
565 /* Do not change the number values, they do matter */
\r
566 #define SSL3_ST_SR_CLNT_HELLO_A (0x110|SSL_ST_ACCEPT)
\r
567 #define SSL3_ST_SR_CLNT_HELLO_B (0x111|SSL_ST_ACCEPT)
\r
568 #define SSL3_ST_SR_CLNT_HELLO_C (0x112|SSL_ST_ACCEPT)
\r
569 /* write to client */
\r
570 #define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A (0x113|SSL_ST_ACCEPT)
\r
571 #define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B (0x114|SSL_ST_ACCEPT)
\r
572 #define SSL3_ST_SW_HELLO_REQ_A (0x120|SSL_ST_ACCEPT)
\r
573 #define SSL3_ST_SW_HELLO_REQ_B (0x121|SSL_ST_ACCEPT)
\r
574 #define SSL3_ST_SW_HELLO_REQ_C (0x122|SSL_ST_ACCEPT)
\r
575 #define SSL3_ST_SW_SRVR_HELLO_A (0x130|SSL_ST_ACCEPT)
\r
576 #define SSL3_ST_SW_SRVR_HELLO_B (0x131|SSL_ST_ACCEPT)
\r
577 #define SSL3_ST_SW_CERT_A (0x140|SSL_ST_ACCEPT)
\r
578 #define SSL3_ST_SW_CERT_B (0x141|SSL_ST_ACCEPT)
\r
579 #define SSL3_ST_SW_KEY_EXCH_A (0x150|SSL_ST_ACCEPT)
\r
580 #define SSL3_ST_SW_KEY_EXCH_B (0x151|SSL_ST_ACCEPT)
\r
581 #define SSL3_ST_SW_CERT_REQ_A (0x160|SSL_ST_ACCEPT)
\r
582 #define SSL3_ST_SW_CERT_REQ_B (0x161|SSL_ST_ACCEPT)
\r
583 #define SSL3_ST_SW_SRVR_DONE_A (0x170|SSL_ST_ACCEPT)
\r
584 #define SSL3_ST_SW_SRVR_DONE_B (0x171|SSL_ST_ACCEPT)
\r
585 /* read from client */
\r
586 #define SSL3_ST_SR_CERT_A (0x180|SSL_ST_ACCEPT)
\r
587 #define SSL3_ST_SR_CERT_B (0x181|SSL_ST_ACCEPT)
\r
588 #define SSL3_ST_SR_KEY_EXCH_A (0x190|SSL_ST_ACCEPT)
\r
589 #define SSL3_ST_SR_KEY_EXCH_B (0x191|SSL_ST_ACCEPT)
\r
590 #define SSL3_ST_SR_CERT_VRFY_A (0x1A0|SSL_ST_ACCEPT)
\r
591 #define SSL3_ST_SR_CERT_VRFY_B (0x1A1|SSL_ST_ACCEPT)
\r
592 #define SSL3_ST_SR_CHANGE_A (0x1B0|SSL_ST_ACCEPT)
\r
593 #define SSL3_ST_SR_CHANGE_B (0x1B1|SSL_ST_ACCEPT)
\r
594 #define SSL3_ST_SR_FINISHED_A (0x1C0|SSL_ST_ACCEPT)
\r
595 #define SSL3_ST_SR_FINISHED_B (0x1C1|SSL_ST_ACCEPT)
\r
596 /* write to client */
\r
597 #define SSL3_ST_SW_CHANGE_A (0x1D0|SSL_ST_ACCEPT)
\r
598 #define SSL3_ST_SW_CHANGE_B (0x1D1|SSL_ST_ACCEPT)
\r
599 #define SSL3_ST_SW_FINISHED_A (0x1E0|SSL_ST_ACCEPT)
\r
600 #define SSL3_ST_SW_FINISHED_B (0x1E1|SSL_ST_ACCEPT)
\r
601 #define SSL3_ST_SW_SESSION_TICKET_A (0x1F0|SSL_ST_ACCEPT)
\r
602 #define SSL3_ST_SW_SESSION_TICKET_B (0x1F1|SSL_ST_ACCEPT)
\r
603 #define SSL3_ST_SW_CERT_STATUS_A (0x200|SSL_ST_ACCEPT)
\r
604 #define SSL3_ST_SW_CERT_STATUS_B (0x201|SSL_ST_ACCEPT)
\r
606 #define SSL3_MT_HELLO_REQUEST 0
\r
607 #define SSL3_MT_CLIENT_HELLO 1
\r
608 #define SSL3_MT_SERVER_HELLO 2
\r
609 #define SSL3_MT_NEWSESSION_TICKET 4
\r
610 #define SSL3_MT_CERTIFICATE 11
\r
611 #define SSL3_MT_SERVER_KEY_EXCHANGE 12
\r
612 #define SSL3_MT_CERTIFICATE_REQUEST 13
\r
613 #define SSL3_MT_SERVER_DONE 14
\r
614 #define SSL3_MT_CERTIFICATE_VERIFY 15
\r
615 #define SSL3_MT_CLIENT_KEY_EXCHANGE 16
\r
616 #define SSL3_MT_FINISHED 20
\r
617 #define SSL3_MT_CERTIFICATE_STATUS 22
\r
618 #define DTLS1_MT_HELLO_VERIFY_REQUEST 3
\r
621 #define SSL3_MT_CCS 1
\r
623 /* These are used when changing over to a new cipher */
\r
624 #define SSL3_CC_READ 0x01
\r
625 #define SSL3_CC_WRITE 0x02
\r
626 #define SSL3_CC_CLIENT 0x10
\r
627 #define SSL3_CC_SERVER 0x20
\r
628 #define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT|SSL3_CC_WRITE)
\r
629 #define SSL3_CHANGE_CIPHER_SERVER_READ (SSL3_CC_SERVER|SSL3_CC_READ)
\r
630 #define SSL3_CHANGE_CIPHER_CLIENT_READ (SSL3_CC_CLIENT|SSL3_CC_READ)
\r
631 #define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER|SSL3_CC_WRITE)
\r
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