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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132 * Signalling cipher suite value from RFC 5746
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133 * (TLS_EMPTY_RENEGOTIATION_INFO_SCSV)
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135 # define SSL3_CK_SCSV 0x030000FF
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138 * Signalling cipher suite value from draft-ietf-tls-downgrade-scsv-00
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139 * (TLS_FALLBACK_SCSV)
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141 # define SSL3_CK_FALLBACK_SCSV 0x03005600
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143 # define SSL3_CK_RSA_NULL_MD5 0x03000001
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144 # define SSL3_CK_RSA_NULL_SHA 0x03000002
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145 # define SSL3_CK_RSA_RC4_40_MD5 0x03000003
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146 # define SSL3_CK_RSA_RC4_128_MD5 0x03000004
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147 # define SSL3_CK_RSA_RC4_128_SHA 0x03000005
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148 # define SSL3_CK_RSA_RC2_40_MD5 0x03000006
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149 # define SSL3_CK_RSA_IDEA_128_SHA 0x03000007
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150 # define SSL3_CK_RSA_DES_40_CBC_SHA 0x03000008
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151 # define SSL3_CK_RSA_DES_64_CBC_SHA 0x03000009
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152 # define SSL3_CK_RSA_DES_192_CBC3_SHA 0x0300000A
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154 # define SSL3_CK_DH_DSS_DES_40_CBC_SHA 0x0300000B
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155 # define SSL3_CK_DH_DSS_DES_64_CBC_SHA 0x0300000C
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156 # define SSL3_CK_DH_DSS_DES_192_CBC3_SHA 0x0300000D
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157 # define SSL3_CK_DH_RSA_DES_40_CBC_SHA 0x0300000E
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158 # define SSL3_CK_DH_RSA_DES_64_CBC_SHA 0x0300000F
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159 # define SSL3_CK_DH_RSA_DES_192_CBC3_SHA 0x03000010
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161 # define SSL3_CK_EDH_DSS_DES_40_CBC_SHA 0x03000011
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162 # define SSL3_CK_DHE_DSS_DES_40_CBC_SHA SSL3_CK_EDH_DSS_DES_40_CBC_SHA
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163 # define SSL3_CK_EDH_DSS_DES_64_CBC_SHA 0x03000012
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164 # define SSL3_CK_DHE_DSS_DES_64_CBC_SHA SSL3_CK_EDH_DSS_DES_64_CBC_SHA
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165 # define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA 0x03000013
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166 # define SSL3_CK_DHE_DSS_DES_192_CBC3_SHA SSL3_CK_EDH_DSS_DES_192_CBC3_SHA
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167 # define SSL3_CK_EDH_RSA_DES_40_CBC_SHA 0x03000014
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168 # define SSL3_CK_DHE_RSA_DES_40_CBC_SHA SSL3_CK_EDH_RSA_DES_40_CBC_SHA
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169 # define SSL3_CK_EDH_RSA_DES_64_CBC_SHA 0x03000015
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170 # define SSL3_CK_DHE_RSA_DES_64_CBC_SHA SSL3_CK_EDH_RSA_DES_64_CBC_SHA
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171 # define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA 0x03000016
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172 # define SSL3_CK_DHE_RSA_DES_192_CBC3_SHA SSL3_CK_EDH_RSA_DES_192_CBC3_SHA
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174 # define SSL3_CK_ADH_RC4_40_MD5 0x03000017
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175 # define SSL3_CK_ADH_RC4_128_MD5 0x03000018
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176 # define SSL3_CK_ADH_DES_40_CBC_SHA 0x03000019
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177 # define SSL3_CK_ADH_DES_64_CBC_SHA 0x0300001A
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178 # define SSL3_CK_ADH_DES_192_CBC_SHA 0x0300001B
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181 # define SSL3_CK_FZA_DMS_NULL_SHA 0x0300001C
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182 # define SSL3_CK_FZA_DMS_FZA_SHA 0x0300001D
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183 # if 0 /* Because it clashes with KRB5, is never
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184 * used any more, and is safe to remove
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185 * according to David Hopwood
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186 * <david.hopwood@zetnet.co.uk> of the
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188 # define SSL3_CK_FZA_DMS_RC4_SHA 0x0300001E
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193 * VRS Additional Kerberos5 entries
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195 # define SSL3_CK_KRB5_DES_64_CBC_SHA 0x0300001E
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196 # define SSL3_CK_KRB5_DES_192_CBC3_SHA 0x0300001F
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197 # define SSL3_CK_KRB5_RC4_128_SHA 0x03000020
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198 # define SSL3_CK_KRB5_IDEA_128_CBC_SHA 0x03000021
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199 # define SSL3_CK_KRB5_DES_64_CBC_MD5 0x03000022
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200 # define SSL3_CK_KRB5_DES_192_CBC3_MD5 0x03000023
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201 # define SSL3_CK_KRB5_RC4_128_MD5 0x03000024
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202 # define SSL3_CK_KRB5_IDEA_128_CBC_MD5 0x03000025
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204 # define SSL3_CK_KRB5_DES_40_CBC_SHA 0x03000026
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205 # define SSL3_CK_KRB5_RC2_40_CBC_SHA 0x03000027
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206 # define SSL3_CK_KRB5_RC4_40_SHA 0x03000028
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207 # define SSL3_CK_KRB5_DES_40_CBC_MD5 0x03000029
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208 # define SSL3_CK_KRB5_RC2_40_CBC_MD5 0x0300002A
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209 # define SSL3_CK_KRB5_RC4_40_MD5 0x0300002B
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211 # define SSL3_TXT_RSA_NULL_MD5 "NULL-MD5"
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212 # define SSL3_TXT_RSA_NULL_SHA "NULL-SHA"
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213 # define SSL3_TXT_RSA_RC4_40_MD5 "EXP-RC4-MD5"
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214 # define SSL3_TXT_RSA_RC4_128_MD5 "RC4-MD5"
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215 # define SSL3_TXT_RSA_RC4_128_SHA "RC4-SHA"
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216 # define SSL3_TXT_RSA_RC2_40_MD5 "EXP-RC2-CBC-MD5"
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217 # define SSL3_TXT_RSA_IDEA_128_SHA "IDEA-CBC-SHA"
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218 # define SSL3_TXT_RSA_DES_40_CBC_SHA "EXP-DES-CBC-SHA"
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219 # define SSL3_TXT_RSA_DES_64_CBC_SHA "DES-CBC-SHA"
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220 # define SSL3_TXT_RSA_DES_192_CBC3_SHA "DES-CBC3-SHA"
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222 # define SSL3_TXT_DH_DSS_DES_40_CBC_SHA "EXP-DH-DSS-DES-CBC-SHA"
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223 # define SSL3_TXT_DH_DSS_DES_64_CBC_SHA "DH-DSS-DES-CBC-SHA"
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224 # define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA "DH-DSS-DES-CBC3-SHA"
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225 # define SSL3_TXT_DH_RSA_DES_40_CBC_SHA "EXP-DH-RSA-DES-CBC-SHA"
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226 # define SSL3_TXT_DH_RSA_DES_64_CBC_SHA "DH-RSA-DES-CBC-SHA"
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227 # define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA "DH-RSA-DES-CBC3-SHA"
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229 # define SSL3_TXT_DHE_DSS_DES_40_CBC_SHA "EXP-DHE-DSS-DES-CBC-SHA"
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230 # define SSL3_TXT_DHE_DSS_DES_64_CBC_SHA "DHE-DSS-DES-CBC-SHA"
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231 # define SSL3_TXT_DHE_DSS_DES_192_CBC3_SHA "DHE-DSS-DES-CBC3-SHA"
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232 # define SSL3_TXT_DHE_RSA_DES_40_CBC_SHA "EXP-DHE-RSA-DES-CBC-SHA"
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233 # define SSL3_TXT_DHE_RSA_DES_64_CBC_SHA "DHE-RSA-DES-CBC-SHA"
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234 # define SSL3_TXT_DHE_RSA_DES_192_CBC3_SHA "DHE-RSA-DES-CBC3-SHA"
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237 * This next block of six "EDH" labels is for backward compatibility with
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238 * older versions of OpenSSL. New code should use the six "DHE" labels above
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241 # define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA "EXP-EDH-DSS-DES-CBC-SHA"
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242 # define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA "EDH-DSS-DES-CBC-SHA"
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243 # define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA "EDH-DSS-DES-CBC3-SHA"
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244 # define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA "EXP-EDH-RSA-DES-CBC-SHA"
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245 # define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA "EDH-RSA-DES-CBC-SHA"
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246 # define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA "EDH-RSA-DES-CBC3-SHA"
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248 # define SSL3_TXT_ADH_RC4_40_MD5 "EXP-ADH-RC4-MD5"
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249 # define SSL3_TXT_ADH_RC4_128_MD5 "ADH-RC4-MD5"
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250 # define SSL3_TXT_ADH_DES_40_CBC_SHA "EXP-ADH-DES-CBC-SHA"
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251 # define SSL3_TXT_ADH_DES_64_CBC_SHA "ADH-DES-CBC-SHA"
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252 # define SSL3_TXT_ADH_DES_192_CBC_SHA "ADH-DES-CBC3-SHA"
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255 # define SSL3_TXT_FZA_DMS_NULL_SHA "FZA-NULL-SHA"
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256 # define SSL3_TXT_FZA_DMS_FZA_SHA "FZA-FZA-CBC-SHA"
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257 # define SSL3_TXT_FZA_DMS_RC4_SHA "FZA-RC4-SHA"
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260 # define SSL3_TXT_KRB5_DES_64_CBC_SHA "KRB5-DES-CBC-SHA"
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261 # define SSL3_TXT_KRB5_DES_192_CBC3_SHA "KRB5-DES-CBC3-SHA"
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262 # define SSL3_TXT_KRB5_RC4_128_SHA "KRB5-RC4-SHA"
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263 # define SSL3_TXT_KRB5_IDEA_128_CBC_SHA "KRB5-IDEA-CBC-SHA"
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264 # define SSL3_TXT_KRB5_DES_64_CBC_MD5 "KRB5-DES-CBC-MD5"
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265 # define SSL3_TXT_KRB5_DES_192_CBC3_MD5 "KRB5-DES-CBC3-MD5"
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266 # define SSL3_TXT_KRB5_RC4_128_MD5 "KRB5-RC4-MD5"
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267 # define SSL3_TXT_KRB5_IDEA_128_CBC_MD5 "KRB5-IDEA-CBC-MD5"
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269 # define SSL3_TXT_KRB5_DES_40_CBC_SHA "EXP-KRB5-DES-CBC-SHA"
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270 # define SSL3_TXT_KRB5_RC2_40_CBC_SHA "EXP-KRB5-RC2-CBC-SHA"
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271 # define SSL3_TXT_KRB5_RC4_40_SHA "EXP-KRB5-RC4-SHA"
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272 # define SSL3_TXT_KRB5_DES_40_CBC_MD5 "EXP-KRB5-DES-CBC-MD5"
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273 # define SSL3_TXT_KRB5_RC2_40_CBC_MD5 "EXP-KRB5-RC2-CBC-MD5"
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274 # define SSL3_TXT_KRB5_RC4_40_MD5 "EXP-KRB5-RC4-MD5"
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276 # define SSL3_SSL_SESSION_ID_LENGTH 32
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277 # define SSL3_MAX_SSL_SESSION_ID_LENGTH 32
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279 # define SSL3_MASTER_SECRET_SIZE 48
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280 # define SSL3_RANDOM_SIZE 32
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281 # define SSL3_SESSION_ID_SIZE 32
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282 # define SSL3_RT_HEADER_LENGTH 5
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284 # define SSL3_HM_HEADER_LENGTH 4
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286 # ifndef SSL3_ALIGN_PAYLOAD
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288 * Some will argue that this increases memory footprint, but it's not
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289 * actually true. Point is that malloc has to return at least 64-bit aligned
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290 * pointers, meaning that allocating 5 bytes wastes 3 bytes in either case.
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291 * Suggested pre-gaping simply moves these wasted bytes from the end of
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292 * allocated region to its front, but makes data payload aligned, which
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293 * improves performance:-)
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295 # define SSL3_ALIGN_PAYLOAD 8
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297 # if (SSL3_ALIGN_PAYLOAD&(SSL3_ALIGN_PAYLOAD-1))!=0
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298 # error "insane SSL3_ALIGN_PAYLOAD"
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299 # undef SSL3_ALIGN_PAYLOAD
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304 * This is the maximum MAC (digest) size used by the SSL library. Currently
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305 * maximum of 20 is used by SHA1, but we reserve for future extension for
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309 # define SSL3_RT_MAX_MD_SIZE 64
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312 * Maximum block size used in all ciphersuites. Currently 16 for AES.
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315 # define SSL_RT_MAX_CIPHER_BLOCK_SIZE 16
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317 # define SSL3_RT_MAX_EXTRA (16384)
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319 /* Maximum plaintext length: defined by SSL/TLS standards */
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320 # define SSL3_RT_MAX_PLAIN_LENGTH 16384
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321 /* Maximum compression overhead: defined by SSL/TLS standards */
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322 # define SSL3_RT_MAX_COMPRESSED_OVERHEAD 1024
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325 * The standards give a maximum encryption overhead of 1024 bytes. In
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326 * practice the value is lower than this. The overhead is the maximum number
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327 * of padding bytes (256) plus the mac size.
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329 # define SSL3_RT_MAX_ENCRYPTED_OVERHEAD (256 + SSL3_RT_MAX_MD_SIZE)
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332 * OpenSSL currently only uses a padding length of at most one block so the
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333 * send overhead is smaller.
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336 # define SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD \
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337 (SSL_RT_MAX_CIPHER_BLOCK_SIZE + SSL3_RT_MAX_MD_SIZE)
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339 /* If compression isn't used don't include the compression overhead */
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341 # ifdef OPENSSL_NO_COMP
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342 # define SSL3_RT_MAX_COMPRESSED_LENGTH SSL3_RT_MAX_PLAIN_LENGTH
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344 # define SSL3_RT_MAX_COMPRESSED_LENGTH \
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345 (SSL3_RT_MAX_PLAIN_LENGTH+SSL3_RT_MAX_COMPRESSED_OVERHEAD)
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347 # define SSL3_RT_MAX_ENCRYPTED_LENGTH \
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348 (SSL3_RT_MAX_ENCRYPTED_OVERHEAD+SSL3_RT_MAX_COMPRESSED_LENGTH)
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349 # define SSL3_RT_MAX_PACKET_SIZE \
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350 (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH)
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352 # define SSL3_MD_CLIENT_FINISHED_CONST "\x43\x4C\x4E\x54"
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353 # define SSL3_MD_SERVER_FINISHED_CONST "\x53\x52\x56\x52"
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355 # define SSL3_VERSION 0x0300
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356 # define SSL3_VERSION_MAJOR 0x03
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357 # define SSL3_VERSION_MINOR 0x00
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359 # define SSL3_RT_CHANGE_CIPHER_SPEC 20
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360 # define SSL3_RT_ALERT 21
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361 # define SSL3_RT_HANDSHAKE 22
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362 # define SSL3_RT_APPLICATION_DATA 23
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363 # define TLS1_RT_HEARTBEAT 24
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365 /* Pseudo content types to indicate additional parameters */
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366 # define TLS1_RT_CRYPTO 0x1000
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367 # define TLS1_RT_CRYPTO_PREMASTER (TLS1_RT_CRYPTO | 0x1)
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368 # define TLS1_RT_CRYPTO_CLIENT_RANDOM (TLS1_RT_CRYPTO | 0x2)
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369 # define TLS1_RT_CRYPTO_SERVER_RANDOM (TLS1_RT_CRYPTO | 0x3)
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370 # define TLS1_RT_CRYPTO_MASTER (TLS1_RT_CRYPTO | 0x4)
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372 # define TLS1_RT_CRYPTO_READ 0x0000
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373 # define TLS1_RT_CRYPTO_WRITE 0x0100
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374 # define TLS1_RT_CRYPTO_MAC (TLS1_RT_CRYPTO | 0x5)
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375 # define TLS1_RT_CRYPTO_KEY (TLS1_RT_CRYPTO | 0x6)
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376 # define TLS1_RT_CRYPTO_IV (TLS1_RT_CRYPTO | 0x7)
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377 # define TLS1_RT_CRYPTO_FIXED_IV (TLS1_RT_CRYPTO | 0x8)
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379 /* Pseudo content type for SSL/TLS header info */
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380 # define SSL3_RT_HEADER 0x100
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382 # define SSL3_AL_WARNING 1
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383 # define SSL3_AL_FATAL 2
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385 # define SSL3_AD_CLOSE_NOTIFY 0
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386 # define SSL3_AD_UNEXPECTED_MESSAGE 10/* fatal */
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387 # define SSL3_AD_BAD_RECORD_MAC 20/* fatal */
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388 # define SSL3_AD_DECOMPRESSION_FAILURE 30/* fatal */
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389 # define SSL3_AD_HANDSHAKE_FAILURE 40/* fatal */
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390 # define SSL3_AD_NO_CERTIFICATE 41
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391 # define SSL3_AD_BAD_CERTIFICATE 42
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392 # define SSL3_AD_UNSUPPORTED_CERTIFICATE 43
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393 # define SSL3_AD_CERTIFICATE_REVOKED 44
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394 # define SSL3_AD_CERTIFICATE_EXPIRED 45
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395 # define SSL3_AD_CERTIFICATE_UNKNOWN 46
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396 # define SSL3_AD_ILLEGAL_PARAMETER 47/* fatal */
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398 # define TLS1_HB_REQUEST 1
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399 # define TLS1_HB_RESPONSE 2
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401 # ifndef OPENSSL_NO_SSL_INTERN
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403 typedef struct ssl3_record_st {
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404 /* type of record */
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408 /* How many bytes available */
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411 */ unsigned int length;
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412 /* read/write offset into 'buf' */
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415 */ unsigned int off;
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416 /* pointer to the record data */
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419 */ unsigned char *data;
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420 /* where the decode bytes are */
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423 */ unsigned char *input;
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424 /* only used with decompression - malloc()ed */
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427 */ unsigned char *comp;
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428 /* epoch number, needed by DTLS1 */
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431 */ unsigned long epoch;
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432 /* sequence number, needed by DTLS1 */
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435 */ unsigned char seq_num[8];
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438 typedef struct ssl3_buffer_st {
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439 /* at least SSL3_RT_MAX_PACKET_SIZE bytes, see ssl3_setup_buffers() */
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440 unsigned char *buf;
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443 /* where to 'copy from' */
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445 /* how many bytes left */
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451 # define SSL3_CT_RSA_SIGN 1
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452 # define SSL3_CT_DSS_SIGN 2
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453 # define SSL3_CT_RSA_FIXED_DH 3
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454 # define SSL3_CT_DSS_FIXED_DH 4
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455 # define SSL3_CT_RSA_EPHEMERAL_DH 5
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456 # define SSL3_CT_DSS_EPHEMERAL_DH 6
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457 # define SSL3_CT_FORTEZZA_DMS 20
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459 * SSL3_CT_NUMBER is used to size arrays and it must be large enough to
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460 * contain all of the cert types defined either for SSLv3 and TLSv1.
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462 # define SSL3_CT_NUMBER 9
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464 # define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS 0x0001
\r
465 # define SSL3_FLAGS_DELAY_CLIENT_FINISHED 0x0002
\r
466 # define SSL3_FLAGS_POP_BUFFER 0x0004
\r
467 # define TLS1_FLAGS_TLS_PADDING_BUG 0x0008
\r
468 # define TLS1_FLAGS_SKIP_CERT_VERIFY 0x0010
\r
469 # define TLS1_FLAGS_KEEP_HANDSHAKE 0x0020
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471 * Set when the handshake is ready to process peer's ChangeCipherSpec message.
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472 * Cleared after the message has been processed.
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474 # define SSL3_FLAGS_CCS_OK 0x0080
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476 /* SSL3_FLAGS_SGC_RESTART_DONE is no longer used */
\r
477 # define SSL3_FLAGS_SGC_RESTART_DONE 0x0040
\r
479 # ifndef OPENSSL_NO_SSL_INTERN
\r
481 typedef struct ssl3_state_st {
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483 int delay_buf_pop_ret;
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484 unsigned char read_sequence[8];
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485 int read_mac_secret_size;
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486 unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
\r
487 unsigned char write_sequence[8];
\r
488 int write_mac_secret_size;
\r
489 unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
\r
490 unsigned char server_random[SSL3_RANDOM_SIZE];
\r
491 unsigned char client_random[SSL3_RANDOM_SIZE];
\r
492 /* flags for countermeasure against known-IV weakness */
\r
493 int need_empty_fragments;
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494 int empty_fragment_done;
\r
495 /* The value of 'extra' when the buffers were initialized */
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497 SSL3_BUFFER rbuf; /* read IO goes into here */
\r
498 SSL3_BUFFER wbuf; /* write IO goes into here */
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499 SSL3_RECORD rrec; /* each decoded record goes in here */
\r
500 SSL3_RECORD wrec; /* goes out from here */
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502 * storage for Alert/Handshake protocol data received but not yet
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503 * processed by ssl3_read_bytes:
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505 unsigned char alert_fragment[2];
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506 unsigned int alert_fragment_len;
\r
507 unsigned char handshake_fragment[4];
\r
508 unsigned int handshake_fragment_len;
\r
509 /* partial write - check the numbers match */
\r
510 unsigned int wnum; /* number of bytes sent so far */
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511 int wpend_tot; /* number bytes written */
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513 int wpend_ret; /* number of bytes submitted */
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514 const unsigned char *wpend_buf;
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515 /* used during startup, digest all incoming/outgoing packets */
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516 BIO *handshake_buffer;
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518 * When set of handshake digests is determined, buffer is hashed and
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519 * freed and MD_CTX-es for all required digests are stored in this array
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521 EVP_MD_CTX **handshake_dgst;
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523 * Set whenever an expected ChangeCipherSpec message is processed.
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524 * Unset when the peer's Finished message is received.
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525 * Unexpected ChangeCipherSpec messages trigger a fatal alert.
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527 int change_cipher_spec;
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531 * we allow one fatal and one warning alert to be outstanding, send close
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532 * alert via the warning alert
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534 int alert_dispatch;
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535 unsigned char send_alert[2];
\r
537 * This flag is set when we should renegotiate ASAP, basically when there
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538 * is no more data in the read or write buffers
\r
541 int total_renegotiations;
\r
542 int num_renegotiations;
\r
543 int in_read_app_data;
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545 * Opaque PRF input as used for the current handshake. These fields are
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546 * used only if TLSEXT_TYPE_opaque_prf_input is defined (otherwise, they
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547 * are merely present to improve binary compatibility)
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549 void *client_opaque_prf_input;
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550 size_t client_opaque_prf_input_len;
\r
551 void *server_opaque_prf_input;
\r
552 size_t server_opaque_prf_input_len;
\r
554 /* actually only needs to be 16+20 */
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555 unsigned char cert_verify_md[EVP_MAX_MD_SIZE * 2];
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556 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
\r
557 unsigned char finish_md[EVP_MAX_MD_SIZE * 2];
\r
559 unsigned char peer_finish_md[EVP_MAX_MD_SIZE * 2];
\r
560 int peer_finish_md_len;
\r
561 unsigned long message_size;
\r
563 /* used to hold the new cipher we are going to use */
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564 const SSL_CIPHER *new_cipher;
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565 # ifndef OPENSSL_NO_DH
\r
568 # ifndef OPENSSL_NO_ECDH
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569 EC_KEY *ecdh; /* holds short lived ECDH key */
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571 /* used when SSL_ST_FLUSH_DATA is entered */
\r
574 /* used for certificate requests */
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577 char ctype[SSL3_CT_NUMBER];
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578 STACK_OF(X509_NAME) *ca_names;
\r
580 int key_block_length;
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581 unsigned char *key_block;
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582 const EVP_CIPHER *new_sym_enc;
\r
583 const EVP_MD *new_hash;
\r
584 int new_mac_pkey_type;
\r
585 int new_mac_secret_size;
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586 # ifndef OPENSSL_NO_COMP
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587 const SSL_COMP *new_compression;
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589 char *new_compression;
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594 /* Connection binding to prevent renegotiation attacks */
\r
595 unsigned char previous_client_finished[EVP_MAX_MD_SIZE];
\r
596 unsigned char previous_client_finished_len;
\r
597 unsigned char previous_server_finished[EVP_MAX_MD_SIZE];
\r
598 unsigned char previous_server_finished_len;
\r
599 int send_connection_binding; /* TODOEKR */
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601 # ifndef OPENSSL_NO_NEXTPROTONEG
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603 * Set if we saw the Next Protocol Negotiation extension from our peer.
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605 int next_proto_neg_seen;
\r
608 # ifndef OPENSSL_NO_TLSEXT
\r
609 # ifndef OPENSSL_NO_EC
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611 * This is set to true if we believe that this is a version of Safari
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612 * running on OS X 10.6 or newer. We wish to know this because Safari on
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613 * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support.
\r
615 char is_probably_safari;
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616 # endif /* !OPENSSL_NO_EC */
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619 * ALPN information (we are in the process of transitioning from NPN to
\r
624 * In a server these point to the selected ALPN protocol after the
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625 * ClientHello has been processed. In a client these contain the protocol
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626 * that the server selected once the ServerHello has been processed.
\r
628 unsigned char *alpn_selected;
\r
629 unsigned alpn_selected_len;
\r
630 # endif /* OPENSSL_NO_TLSEXT */
\r
640 # define SSL3_ST_CW_FLUSH (0x100|SSL_ST_CONNECT)
\r
641 # ifndef OPENSSL_NO_SCTP
\r
642 # define DTLS1_SCTP_ST_CW_WRITE_SOCK (0x310|SSL_ST_CONNECT)
\r
643 # define DTLS1_SCTP_ST_CR_READ_SOCK (0x320|SSL_ST_CONNECT)
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645 /* write to server */
\r
646 # define SSL3_ST_CW_CLNT_HELLO_A (0x110|SSL_ST_CONNECT)
\r
647 # define SSL3_ST_CW_CLNT_HELLO_B (0x111|SSL_ST_CONNECT)
\r
648 /* read from server */
\r
649 # define SSL3_ST_CR_SRVR_HELLO_A (0x120|SSL_ST_CONNECT)
\r
650 # define SSL3_ST_CR_SRVR_HELLO_B (0x121|SSL_ST_CONNECT)
\r
651 # define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A (0x126|SSL_ST_CONNECT)
\r
652 # define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B (0x127|SSL_ST_CONNECT)
\r
653 # define SSL3_ST_CR_CERT_A (0x130|SSL_ST_CONNECT)
\r
654 # define SSL3_ST_CR_CERT_B (0x131|SSL_ST_CONNECT)
\r
655 # define SSL3_ST_CR_KEY_EXCH_A (0x140|SSL_ST_CONNECT)
\r
656 # define SSL3_ST_CR_KEY_EXCH_B (0x141|SSL_ST_CONNECT)
\r
657 # define SSL3_ST_CR_CERT_REQ_A (0x150|SSL_ST_CONNECT)
\r
658 # define SSL3_ST_CR_CERT_REQ_B (0x151|SSL_ST_CONNECT)
\r
659 # define SSL3_ST_CR_SRVR_DONE_A (0x160|SSL_ST_CONNECT)
\r
660 # define SSL3_ST_CR_SRVR_DONE_B (0x161|SSL_ST_CONNECT)
\r
661 /* write to server */
\r
662 # define SSL3_ST_CW_CERT_A (0x170|SSL_ST_CONNECT)
\r
663 # define SSL3_ST_CW_CERT_B (0x171|SSL_ST_CONNECT)
\r
664 # define SSL3_ST_CW_CERT_C (0x172|SSL_ST_CONNECT)
\r
665 # define SSL3_ST_CW_CERT_D (0x173|SSL_ST_CONNECT)
\r
666 # define SSL3_ST_CW_KEY_EXCH_A (0x180|SSL_ST_CONNECT)
\r
667 # define SSL3_ST_CW_KEY_EXCH_B (0x181|SSL_ST_CONNECT)
\r
668 # define SSL3_ST_CW_CERT_VRFY_A (0x190|SSL_ST_CONNECT)
\r
669 # define SSL3_ST_CW_CERT_VRFY_B (0x191|SSL_ST_CONNECT)
\r
670 # define SSL3_ST_CW_CHANGE_A (0x1A0|SSL_ST_CONNECT)
\r
671 # define SSL3_ST_CW_CHANGE_B (0x1A1|SSL_ST_CONNECT)
\r
672 # ifndef OPENSSL_NO_NEXTPROTONEG
\r
673 # define SSL3_ST_CW_NEXT_PROTO_A (0x200|SSL_ST_CONNECT)
\r
674 # define SSL3_ST_CW_NEXT_PROTO_B (0x201|SSL_ST_CONNECT)
\r
676 # define SSL3_ST_CW_FINISHED_A (0x1B0|SSL_ST_CONNECT)
\r
677 # define SSL3_ST_CW_FINISHED_B (0x1B1|SSL_ST_CONNECT)
\r
678 /* read from server */
\r
679 # define SSL3_ST_CR_CHANGE_A (0x1C0|SSL_ST_CONNECT)
\r
680 # define SSL3_ST_CR_CHANGE_B (0x1C1|SSL_ST_CONNECT)
\r
681 # define SSL3_ST_CR_FINISHED_A (0x1D0|SSL_ST_CONNECT)
\r
682 # define SSL3_ST_CR_FINISHED_B (0x1D1|SSL_ST_CONNECT)
\r
683 # define SSL3_ST_CR_SESSION_TICKET_A (0x1E0|SSL_ST_CONNECT)
\r
684 # define SSL3_ST_CR_SESSION_TICKET_B (0x1E1|SSL_ST_CONNECT)
\r
685 # define SSL3_ST_CR_CERT_STATUS_A (0x1F0|SSL_ST_CONNECT)
\r
686 # define SSL3_ST_CR_CERT_STATUS_B (0x1F1|SSL_ST_CONNECT)
\r
690 # define SSL3_ST_SW_FLUSH (0x100|SSL_ST_ACCEPT)
\r
691 # ifndef OPENSSL_NO_SCTP
\r
692 # define DTLS1_SCTP_ST_SW_WRITE_SOCK (0x310|SSL_ST_ACCEPT)
\r
693 # define DTLS1_SCTP_ST_SR_READ_SOCK (0x320|SSL_ST_ACCEPT)
\r
695 /* read from client */
\r
696 /* Do not change the number values, they do matter */
\r
697 # define SSL3_ST_SR_CLNT_HELLO_A (0x110|SSL_ST_ACCEPT)
\r
698 # define SSL3_ST_SR_CLNT_HELLO_B (0x111|SSL_ST_ACCEPT)
\r
699 # define SSL3_ST_SR_CLNT_HELLO_C (0x112|SSL_ST_ACCEPT)
\r
700 # define SSL3_ST_SR_CLNT_HELLO_D (0x115|SSL_ST_ACCEPT)
\r
701 /* write to client */
\r
702 # define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A (0x113|SSL_ST_ACCEPT)
\r
703 # define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B (0x114|SSL_ST_ACCEPT)
\r
704 # define SSL3_ST_SW_HELLO_REQ_A (0x120|SSL_ST_ACCEPT)
\r
705 # define SSL3_ST_SW_HELLO_REQ_B (0x121|SSL_ST_ACCEPT)
\r
706 # define SSL3_ST_SW_HELLO_REQ_C (0x122|SSL_ST_ACCEPT)
\r
707 # define SSL3_ST_SW_SRVR_HELLO_A (0x130|SSL_ST_ACCEPT)
\r
708 # define SSL3_ST_SW_SRVR_HELLO_B (0x131|SSL_ST_ACCEPT)
\r
709 # define SSL3_ST_SW_CERT_A (0x140|SSL_ST_ACCEPT)
\r
710 # define SSL3_ST_SW_CERT_B (0x141|SSL_ST_ACCEPT)
\r
711 # define SSL3_ST_SW_KEY_EXCH_A (0x150|SSL_ST_ACCEPT)
\r
712 # define SSL3_ST_SW_KEY_EXCH_B (0x151|SSL_ST_ACCEPT)
\r
713 # define SSL3_ST_SW_CERT_REQ_A (0x160|SSL_ST_ACCEPT)
\r
714 # define SSL3_ST_SW_CERT_REQ_B (0x161|SSL_ST_ACCEPT)
\r
715 # define SSL3_ST_SW_SRVR_DONE_A (0x170|SSL_ST_ACCEPT)
\r
716 # define SSL3_ST_SW_SRVR_DONE_B (0x171|SSL_ST_ACCEPT)
\r
717 /* read from client */
\r
718 # define SSL3_ST_SR_CERT_A (0x180|SSL_ST_ACCEPT)
\r
719 # define SSL3_ST_SR_CERT_B (0x181|SSL_ST_ACCEPT)
\r
720 # define SSL3_ST_SR_KEY_EXCH_A (0x190|SSL_ST_ACCEPT)
\r
721 # define SSL3_ST_SR_KEY_EXCH_B (0x191|SSL_ST_ACCEPT)
\r
722 # define SSL3_ST_SR_CERT_VRFY_A (0x1A0|SSL_ST_ACCEPT)
\r
723 # define SSL3_ST_SR_CERT_VRFY_B (0x1A1|SSL_ST_ACCEPT)
\r
724 # define SSL3_ST_SR_CHANGE_A (0x1B0|SSL_ST_ACCEPT)
\r
725 # define SSL3_ST_SR_CHANGE_B (0x1B1|SSL_ST_ACCEPT)
\r
726 # ifndef OPENSSL_NO_NEXTPROTONEG
\r
727 # define SSL3_ST_SR_NEXT_PROTO_A (0x210|SSL_ST_ACCEPT)
\r
728 # define SSL3_ST_SR_NEXT_PROTO_B (0x211|SSL_ST_ACCEPT)
\r
730 # define SSL3_ST_SR_FINISHED_A (0x1C0|SSL_ST_ACCEPT)
\r
731 # define SSL3_ST_SR_FINISHED_B (0x1C1|SSL_ST_ACCEPT)
\r
732 /* write to client */
\r
733 # define SSL3_ST_SW_CHANGE_A (0x1D0|SSL_ST_ACCEPT)
\r
734 # define SSL3_ST_SW_CHANGE_B (0x1D1|SSL_ST_ACCEPT)
\r
735 # define SSL3_ST_SW_FINISHED_A (0x1E0|SSL_ST_ACCEPT)
\r
736 # define SSL3_ST_SW_FINISHED_B (0x1E1|SSL_ST_ACCEPT)
\r
737 # define SSL3_ST_SW_SESSION_TICKET_A (0x1F0|SSL_ST_ACCEPT)
\r
738 # define SSL3_ST_SW_SESSION_TICKET_B (0x1F1|SSL_ST_ACCEPT)
\r
739 # define SSL3_ST_SW_CERT_STATUS_A (0x200|SSL_ST_ACCEPT)
\r
740 # define SSL3_ST_SW_CERT_STATUS_B (0x201|SSL_ST_ACCEPT)
\r
742 # define SSL3_MT_HELLO_REQUEST 0
\r
743 # define SSL3_MT_CLIENT_HELLO 1
\r
744 # define SSL3_MT_SERVER_HELLO 2
\r
745 # define SSL3_MT_NEWSESSION_TICKET 4
\r
746 # define SSL3_MT_CERTIFICATE 11
\r
747 # define SSL3_MT_SERVER_KEY_EXCHANGE 12
\r
748 # define SSL3_MT_CERTIFICATE_REQUEST 13
\r
749 # define SSL3_MT_SERVER_DONE 14
\r
750 # define SSL3_MT_CERTIFICATE_VERIFY 15
\r
751 # define SSL3_MT_CLIENT_KEY_EXCHANGE 16
\r
752 # define SSL3_MT_FINISHED 20
\r
753 # define SSL3_MT_CERTIFICATE_STATUS 22
\r
754 # ifndef OPENSSL_NO_NEXTPROTONEG
\r
755 # define SSL3_MT_NEXT_PROTO 67
\r
757 # define DTLS1_MT_HELLO_VERIFY_REQUEST 3
\r
759 # define SSL3_MT_CCS 1
\r
761 /* These are used when changing over to a new cipher */
\r
762 # define SSL3_CC_READ 0x01
\r
763 # define SSL3_CC_WRITE 0x02
\r
764 # define SSL3_CC_CLIENT 0x10
\r
765 # define SSL3_CC_SERVER 0x20
\r
766 # define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT|SSL3_CC_WRITE)
\r
767 # define SSL3_CHANGE_CIPHER_SERVER_READ (SSL3_CC_SERVER|SSL3_CC_READ)
\r
768 # define SSL3_CHANGE_CIPHER_CLIENT_READ (SSL3_CC_CLIENT|SSL3_CC_READ)
\r
769 # define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER|SSL3_CC_WRITE)
\r