1 /* 2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. 3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved. 4 * 5 * Licensed under the OpenSSL license (the "License"). You may not use 6 * this file except in compliance with the License. You can obtain a copy 7 * in the file LICENSE in the source distribution or at 8 * https://www.openssl.org/source/license.html 9 */ 10 11 #ifndef OPENSSL_HEADER_SSL3_H 12 #define OPENSSL_HEADER_SSL3_H 13 14 #include <openssl/aead.h> 15 16 #ifdef __cplusplus 17 extern "C" { 18 #endif 19 20 21 // These are kept to support clients that negotiates higher protocol versions 22 // using SSLv2 client hello records. 23 #define SSL2_MT_CLIENT_HELLO 1 24 #define SSL2_VERSION 0x0002 25 26 // Signalling cipher suite value from RFC 5746. 27 #define SSL3_CK_SCSV 0x030000FF 28 // Fallback signalling cipher suite value from RFC 7507. 29 #define SSL3_CK_FALLBACK_SCSV 0x03005600 30 31 #define SSL3_CK_RSA_NULL_MD5 0x03000001 32 #define SSL3_CK_RSA_NULL_SHA 0x03000002 33 #define SSL3_CK_RSA_RC4_40_MD5 0x03000003 34 #define SSL3_CK_RSA_RC4_128_MD5 0x03000004 35 #define SSL3_CK_RSA_RC4_128_SHA 0x03000005 36 #define SSL3_CK_RSA_RC2_40_MD5 0x03000006 37 #define SSL3_CK_RSA_IDEA_128_SHA 0x03000007 38 #define SSL3_CK_RSA_DES_40_CBC_SHA 0x03000008 39 #define SSL3_CK_RSA_DES_64_CBC_SHA 0x03000009 40 #define SSL3_CK_RSA_DES_192_CBC3_SHA 0x0300000A 41 42 #define SSL3_CK_DH_DSS_DES_40_CBC_SHA 0x0300000B 43 #define SSL3_CK_DH_DSS_DES_64_CBC_SHA 0x0300000C 44 #define SSL3_CK_DH_DSS_DES_192_CBC3_SHA 0x0300000D 45 #define SSL3_CK_DH_RSA_DES_40_CBC_SHA 0x0300000E 46 #define SSL3_CK_DH_RSA_DES_64_CBC_SHA 0x0300000F 47 #define SSL3_CK_DH_RSA_DES_192_CBC3_SHA 0x03000010 48 49 #define SSL3_CK_EDH_DSS_DES_40_CBC_SHA 0x03000011 50 #define SSL3_CK_EDH_DSS_DES_64_CBC_SHA 0x03000012 51 #define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA 0x03000013 52 #define SSL3_CK_EDH_RSA_DES_40_CBC_SHA 0x03000014 53 #define SSL3_CK_EDH_RSA_DES_64_CBC_SHA 0x03000015 54 #define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA 0x03000016 55 56 #define SSL3_CK_ADH_RC4_40_MD5 0x03000017 57 #define SSL3_CK_ADH_RC4_128_MD5 0x03000018 58 #define SSL3_CK_ADH_DES_40_CBC_SHA 0x03000019 59 #define SSL3_CK_ADH_DES_64_CBC_SHA 0x0300001A 60 #define SSL3_CK_ADH_DES_192_CBC_SHA 0x0300001B 61 62 #define SSL3_TXT_RSA_NULL_MD5 "NULL-MD5" 63 #define SSL3_TXT_RSA_NULL_SHA "NULL-SHA" 64 #define SSL3_TXT_RSA_RC4_40_MD5 "EXP-RC4-MD5" 65 #define SSL3_TXT_RSA_RC4_128_MD5 "RC4-MD5" 66 #define SSL3_TXT_RSA_RC4_128_SHA "RC4-SHA" 67 #define SSL3_TXT_RSA_RC2_40_MD5 "EXP-RC2-CBC-MD5" 68 #define SSL3_TXT_RSA_IDEA_128_SHA "IDEA-CBC-SHA" 69 #define SSL3_TXT_RSA_DES_40_CBC_SHA "EXP-DES-CBC-SHA" 70 #define SSL3_TXT_RSA_DES_64_CBC_SHA "DES-CBC-SHA" 71 #define SSL3_TXT_RSA_DES_192_CBC3_SHA "DES-CBC3-SHA" 72 73 #define SSL3_TXT_DH_DSS_DES_40_CBC_SHA "EXP-DH-DSS-DES-CBC-SHA" 74 #define SSL3_TXT_DH_DSS_DES_64_CBC_SHA "DH-DSS-DES-CBC-SHA" 75 #define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA "DH-DSS-DES-CBC3-SHA" 76 #define SSL3_TXT_DH_RSA_DES_40_CBC_SHA "EXP-DH-RSA-DES-CBC-SHA" 77 #define SSL3_TXT_DH_RSA_DES_64_CBC_SHA "DH-RSA-DES-CBC-SHA" 78 #define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA "DH-RSA-DES-CBC3-SHA" 79 80 #define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA "EXP-EDH-DSS-DES-CBC-SHA" 81 #define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA "EDH-DSS-DES-CBC-SHA" 82 #define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA "EDH-DSS-DES-CBC3-SHA" 83 #define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA "EXP-EDH-RSA-DES-CBC-SHA" 84 #define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA "EDH-RSA-DES-CBC-SHA" 85 #define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA "EDH-RSA-DES-CBC3-SHA" 86 87 #define SSL3_TXT_ADH_RC4_40_MD5 "EXP-ADH-RC4-MD5" 88 #define SSL3_TXT_ADH_RC4_128_MD5 "ADH-RC4-MD5" 89 #define SSL3_TXT_ADH_DES_40_CBC_SHA "EXP-ADH-DES-CBC-SHA" 90 #define SSL3_TXT_ADH_DES_64_CBC_SHA "ADH-DES-CBC-SHA" 91 #define SSL3_TXT_ADH_DES_192_CBC_SHA "ADH-DES-CBC3-SHA" 92 93 #define SSL3_SSL_SESSION_ID_LENGTH 32 94 #define SSL3_MAX_SSL_SESSION_ID_LENGTH 32 95 96 #define SSL3_MASTER_SECRET_SIZE 48 97 #define SSL3_RANDOM_SIZE 32 98 #define SSL3_SESSION_ID_SIZE 32 99 #define SSL3_RT_HEADER_LENGTH 5 100 101 #define SSL3_HM_HEADER_LENGTH 4 102 103 #ifndef SSL3_ALIGN_PAYLOAD 104 // Some will argue that this increases memory footprint, but it's not actually 105 // true. Point is that malloc has to return at least 64-bit aligned pointers, 106 // meaning that allocating 5 bytes wastes 3 bytes in either case. Suggested 107 // pre-gaping simply moves these wasted bytes from the end of allocated region 108 // to its front, but makes data payload aligned, which improves performance. 109 #define SSL3_ALIGN_PAYLOAD 8 110 #else 111 #if (SSL3_ALIGN_PAYLOAD & (SSL3_ALIGN_PAYLOAD - 1)) != 0 112 #error "insane SSL3_ALIGN_PAYLOAD" 113 #undef SSL3_ALIGN_PAYLOAD 114 #endif 115 #endif 116 117 // This is the maximum MAC (digest) size used by the SSL library. Currently 118 // maximum of 20 is used by SHA1, but we reserve for future extension for 119 // 512-bit hashes. 120 121 #define SSL3_RT_MAX_MD_SIZE 64 122 123 // Maximum block size used in all ciphersuites. Currently 16 for AES. 124 125 #define SSL_RT_MAX_CIPHER_BLOCK_SIZE 16 126 127 // Maximum plaintext length: defined by SSL/TLS standards 128 #define SSL3_RT_MAX_PLAIN_LENGTH 16384 129 // Maximum compression overhead: defined by SSL/TLS standards 130 #define SSL3_RT_MAX_COMPRESSED_OVERHEAD 1024 131 132 // The standards give a maximum encryption overhead of 1024 bytes. In practice 133 // the value is lower than this. The overhead is the maximum number of padding 134 // bytes (256) plus the mac size. 135 // 136 // TODO(davidben): This derivation doesn't take AEADs into account, or TLS 1.1 137 // explicit nonces. It happens to work because |SSL3_RT_MAX_MD_SIZE| is larger 138 // than necessary and no true AEAD has variable overhead in TLS 1.2. 139 #define SSL3_RT_MAX_ENCRYPTED_OVERHEAD (256 + SSL3_RT_MAX_MD_SIZE) 140 141 // SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD is the maximum overhead in encrypting a 142 // record. This does not include the record header. Some ciphers use explicit 143 // nonces, so it includes both the AEAD overhead as well as the nonce. 144 #define SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD \ 145 (EVP_AEAD_MAX_OVERHEAD + EVP_AEAD_MAX_NONCE_LENGTH) 146 147 // SSL3_RT_MAX_COMPRESSED_LENGTH is an alias for 148 // |SSL3_RT_MAX_PLAIN_LENGTH|. Compression is gone, so don't include the 149 // compression overhead. 150 #define SSL3_RT_MAX_COMPRESSED_LENGTH SSL3_RT_MAX_PLAIN_LENGTH 151 152 #define SSL3_RT_MAX_ENCRYPTED_LENGTH \ 153 (SSL3_RT_MAX_ENCRYPTED_OVERHEAD + SSL3_RT_MAX_COMPRESSED_LENGTH) 154 #define SSL3_RT_MAX_PACKET_SIZE \ 155 (SSL3_RT_MAX_ENCRYPTED_LENGTH + SSL3_RT_HEADER_LENGTH) 156 157 #define SSL3_MD_CLIENT_FINISHED_CONST "\x43\x4C\x4E\x54" 158 #define SSL3_MD_SERVER_FINISHED_CONST "\x53\x52\x56\x52" 159 160 #define SSL3_RT_CHANGE_CIPHER_SPEC 20 161 #define SSL3_RT_ALERT 21 162 #define SSL3_RT_HANDSHAKE 22 163 #define SSL3_RT_APPLICATION_DATA 23 164 #define SSL3_RT_ACK 26 165 166 // Pseudo content type for SSL/TLS header info 167 #define SSL3_RT_HEADER 0x100 168 #define SSL3_RT_CLIENT_HELLO_INNER 0x101 169 170 #define SSL3_AL_WARNING 1 171 #define SSL3_AL_FATAL 2 172 173 #define SSL3_AD_CLOSE_NOTIFY 0 174 #define SSL3_AD_UNEXPECTED_MESSAGE 10 // fatal 175 #define SSL3_AD_BAD_RECORD_MAC 20 // fatal 176 #define SSL3_AD_DECOMPRESSION_FAILURE 30 // fatal 177 #define SSL3_AD_HANDSHAKE_FAILURE 40 // fatal 178 #define SSL3_AD_NO_CERTIFICATE 41 179 #define SSL3_AD_BAD_CERTIFICATE 42 180 #define SSL3_AD_UNSUPPORTED_CERTIFICATE 43 181 #define SSL3_AD_CERTIFICATE_REVOKED 44 182 #define SSL3_AD_CERTIFICATE_EXPIRED 45 183 #define SSL3_AD_CERTIFICATE_UNKNOWN 46 184 #define SSL3_AD_ILLEGAL_PARAMETER 47 // fatal 185 #define SSL3_AD_INAPPROPRIATE_FALLBACK 86 // fatal 186 187 #define SSL3_CT_RSA_SIGN 1 188 189 #define SSL3_MT_HELLO_REQUEST 0 190 #define SSL3_MT_CLIENT_HELLO 1 191 #define SSL3_MT_SERVER_HELLO 2 192 #define SSL3_MT_NEW_SESSION_TICKET 4 193 #define SSL3_MT_END_OF_EARLY_DATA 5 194 #define SSL3_MT_ENCRYPTED_EXTENSIONS 8 195 #define SSL3_MT_CERTIFICATE 11 196 #define SSL3_MT_SERVER_KEY_EXCHANGE 12 197 #define SSL3_MT_CERTIFICATE_REQUEST 13 198 #define SSL3_MT_SERVER_HELLO_DONE 14 199 #define SSL3_MT_CERTIFICATE_VERIFY 15 200 #define SSL3_MT_CLIENT_KEY_EXCHANGE 16 201 #define SSL3_MT_FINISHED 20 202 #define SSL3_MT_CERTIFICATE_STATUS 22 203 #define SSL3_MT_SUPPLEMENTAL_DATA 23 204 #define SSL3_MT_KEY_UPDATE 24 205 #define SSL3_MT_COMPRESSED_CERTIFICATE 25 206 #define SSL3_MT_NEXT_PROTO 67 207 #define SSL3_MT_CHANNEL_ID 203 208 #define SSL3_MT_MESSAGE_HASH 254 209 #define DTLS1_MT_HELLO_VERIFY_REQUEST 3 210 211 // The following are legacy aliases for consumers which use 212 // |SSL_CTX_set_msg_callback|. 213 #define SSL3_MT_SERVER_DONE SSL3_MT_SERVER_HELLO_DONE 214 #define SSL3_MT_NEWSESSION_TICKET SSL3_MT_NEW_SESSION_TICKET 215 216 217 #define SSL3_MT_CCS 1 218 219 220 #ifdef __cplusplus 221 } // extern C 222 #endif 223 224 #endif // OPENSSL_HEADER_SSL3_H 225