[b32552c] | 1 | /* ssl/ssl2.h */ |
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| 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
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| 3 | * All rights reserved. |
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| 4 | * |
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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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| 8 | * |
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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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| 15 | * |
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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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| 22 | * |
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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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| 25 | * are met: |
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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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| 40 | * |
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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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| 51 | * SUCH DAMAGE. |
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| 52 | * |
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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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| 57 | */ |
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| 58 | |
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| 59 | #ifndef HEADER_SSL2_H |
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| 60 | #define HEADER_SSL2_H |
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| 61 | |
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| 62 | #ifdef __cplusplus |
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| 63 | extern "C" { |
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| 64 | #endif |
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| 65 | |
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| 66 | /* Protocol Version Codes */ |
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| 67 | #define SSL2_VERSION 0x0002 |
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| 68 | #define SSL2_VERSION_MAJOR 0x00 |
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| 69 | #define SSL2_VERSION_MINOR 0x02 |
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| 70 | /* #define SSL2_CLIENT_VERSION 0x0002 */ |
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| 71 | /* #define SSL2_SERVER_VERSION 0x0002 */ |
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| 72 | |
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| 73 | /* Protocol Message Codes */ |
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| 74 | #define SSL2_MT_ERROR 0 |
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| 75 | #define SSL2_MT_CLIENT_HELLO 1 |
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| 76 | #define SSL2_MT_CLIENT_MASTER_KEY 2 |
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| 77 | #define SSL2_MT_CLIENT_FINISHED 3 |
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| 78 | #define SSL2_MT_SERVER_HELLO 4 |
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| 79 | #define SSL2_MT_SERVER_VERIFY 5 |
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| 80 | #define SSL2_MT_SERVER_FINISHED 6 |
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| 81 | #define SSL2_MT_REQUEST_CERTIFICATE 7 |
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| 82 | #define SSL2_MT_CLIENT_CERTIFICATE 8 |
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| 83 | |
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| 84 | /* Error Message Codes */ |
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| 85 | #define SSL2_PE_UNDEFINED_ERROR 0x0000 |
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| 86 | #define SSL2_PE_NO_CIPHER 0x0001 |
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| 87 | #define SSL2_PE_NO_CERTIFICATE 0x0002 |
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| 88 | #define SSL2_PE_BAD_CERTIFICATE 0x0004 |
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| 89 | #define SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE 0x0006 |
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| 90 | |
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| 91 | /* Cipher Kind Values */ |
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| 92 | #define SSL2_CK_NULL_WITH_MD5 0x02000000 /* v3 */ |
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| 93 | #define SSL2_CK_RC4_128_WITH_MD5 0x02010080 |
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| 94 | #define SSL2_CK_RC4_128_EXPORT40_WITH_MD5 0x02020080 |
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| 95 | #define SSL2_CK_RC2_128_CBC_WITH_MD5 0x02030080 |
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| 96 | #define SSL2_CK_RC2_128_CBC_EXPORT40_WITH_MD5 0x02040080 |
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| 97 | #define SSL2_CK_IDEA_128_CBC_WITH_MD5 0x02050080 |
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| 98 | #define SSL2_CK_DES_64_CBC_WITH_MD5 0x02060040 |
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| 99 | #define SSL2_CK_DES_64_CBC_WITH_SHA 0x02060140 /* v3 */ |
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| 100 | #define SSL2_CK_DES_192_EDE3_CBC_WITH_MD5 0x020700c0 |
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| 101 | #define SSL2_CK_DES_192_EDE3_CBC_WITH_SHA 0x020701c0 /* v3 */ |
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| 102 | #define SSL2_CK_RC4_64_WITH_MD5 0x02080080 /* MS hack */ |
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| 103 | |
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| 104 | #define SSL2_CK_DES_64_CFB64_WITH_MD5_1 0x02ff0800 /* SSLeay */ |
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| 105 | #define SSL2_CK_NULL 0x02ff0810 /* SSLeay */ |
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| 106 | |
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| 107 | #define SSL2_TXT_DES_64_CFB64_WITH_MD5_1 "DES-CFB-M1" |
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| 108 | #define SSL2_TXT_NULL_WITH_MD5 "NULL-MD5" |
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| 109 | #define SSL2_TXT_RC4_128_WITH_MD5 "RC4-MD5" |
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| 110 | #define SSL2_TXT_RC4_128_EXPORT40_WITH_MD5 "EXP-RC4-MD5" |
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| 111 | #define SSL2_TXT_RC2_128_CBC_WITH_MD5 "RC2-CBC-MD5" |
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| 112 | #define SSL2_TXT_RC2_128_CBC_EXPORT40_WITH_MD5 "EXP-RC2-CBC-MD5" |
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| 113 | #define SSL2_TXT_IDEA_128_CBC_WITH_MD5 "IDEA-CBC-MD5" |
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| 114 | #define SSL2_TXT_DES_64_CBC_WITH_MD5 "DES-CBC-MD5" |
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| 115 | #define SSL2_TXT_DES_64_CBC_WITH_SHA "DES-CBC-SHA" |
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| 116 | #define SSL2_TXT_DES_192_EDE3_CBC_WITH_MD5 "DES-CBC3-MD5" |
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| 117 | #define SSL2_TXT_DES_192_EDE3_CBC_WITH_SHA "DES-CBC3-SHA" |
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| 118 | #define SSL2_TXT_RC4_64_WITH_MD5 "RC4-64-MD5" |
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| 119 | |
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| 120 | #define SSL2_TXT_NULL "NULL" |
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| 121 | |
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| 122 | /* Flags for the SSL_CIPHER.algorithm2 field */ |
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| 123 | #define SSL2_CF_5_BYTE_ENC 0x01 |
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| 124 | #define SSL2_CF_8_BYTE_ENC 0x02 |
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| 125 | |
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| 126 | /* Certificate Type Codes */ |
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| 127 | #define SSL2_CT_X509_CERTIFICATE 0x01 |
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| 128 | |
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| 129 | /* Authentication Type Code */ |
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| 130 | #define SSL2_AT_MD5_WITH_RSA_ENCRYPTION 0x01 |
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| 131 | |
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| 132 | #define SSL2_MAX_SSL_SESSION_ID_LENGTH 32 |
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| 133 | |
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| 134 | /* Upper/Lower Bounds */ |
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| 135 | #define SSL2_MAX_MASTER_KEY_LENGTH_IN_BITS 256 |
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| 136 | #ifdef OPENSSL_SYS_MPE |
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| 137 | #define SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER 29998u |
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| 138 | #else |
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| 139 | #define SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER 32767u /* 2^15-1 */ |
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| 140 | #endif |
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| 141 | #define SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER 16383 /* 2^14-1 */ |
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| 142 | |
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| 143 | #define SSL2_CHALLENGE_LENGTH 16 |
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| 144 | /*#define SSL2_CHALLENGE_LENGTH 32 */ |
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| 145 | #define SSL2_MIN_CHALLENGE_LENGTH 16 |
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| 146 | #define SSL2_MAX_CHALLENGE_LENGTH 32 |
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| 147 | #define SSL2_CONNECTION_ID_LENGTH 16 |
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| 148 | #define SSL2_MAX_CONNECTION_ID_LENGTH 16 |
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| 149 | #define SSL2_SSL_SESSION_ID_LENGTH 16 |
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| 150 | #define SSL2_MAX_CERT_CHALLENGE_LENGTH 32 |
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| 151 | #define SSL2_MIN_CERT_CHALLENGE_LENGTH 16 |
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| 152 | #define SSL2_MAX_KEY_MATERIAL_LENGTH 24 |
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| 153 | |
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| 154 | #ifndef HEADER_SSL_LOCL_H |
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| 155 | #define CERT char |
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| 156 | #endif |
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| 157 | |
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| 158 | typedef struct ssl2_state_st |
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| 159 | { |
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| 160 | int three_byte_header; |
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| 161 | int clear_text; /* clear text */ |
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| 162 | int escape; /* not used in SSLv2 */ |
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| 163 | int ssl2_rollback; /* used if SSLv23 rolled back to SSLv2 */ |
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| 164 | |
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| 165 | /* non-blocking io info, used to make sure the same |
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| 166 | * args were passwd */ |
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| 167 | unsigned int wnum; /* number of bytes sent so far */ |
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| 168 | int wpend_tot; |
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| 169 | const unsigned char *wpend_buf; |
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| 170 | |
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| 171 | int wpend_off; /* offset to data to write */ |
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| 172 | int wpend_len; /* number of bytes passwd to write */ |
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| 173 | int wpend_ret; /* number of bytes to return to caller */ |
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| 174 | |
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| 175 | /* buffer raw data */ |
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| 176 | int rbuf_left; |
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| 177 | int rbuf_offs; |
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| 178 | unsigned char *rbuf; |
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| 179 | unsigned char *wbuf; |
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| 180 | |
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| 181 | unsigned char *write_ptr;/* used to point to the start due to |
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| 182 | * 2/3 byte header. */ |
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| 183 | |
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| 184 | unsigned int padding; |
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| 185 | unsigned int rlength; /* passed to ssl2_enc */ |
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| 186 | int ract_data_length; /* Set when things are encrypted. */ |
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| 187 | unsigned int wlength; /* passed to ssl2_enc */ |
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| 188 | int wact_data_length; /* Set when things are decrypted. */ |
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| 189 | unsigned char *ract_data; |
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| 190 | unsigned char *wact_data; |
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| 191 | unsigned char *mac_data; |
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| 192 | |
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| 193 | unsigned char *read_key; |
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| 194 | unsigned char *write_key; |
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| 195 | |
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| 196 | /* Stuff specifically to do with this SSL session */ |
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| 197 | unsigned int challenge_length; |
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| 198 | unsigned char challenge[SSL2_MAX_CHALLENGE_LENGTH]; |
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| 199 | unsigned int conn_id_length; |
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| 200 | unsigned char conn_id[SSL2_MAX_CONNECTION_ID_LENGTH]; |
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| 201 | unsigned int key_material_length; |
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| 202 | unsigned char key_material[SSL2_MAX_KEY_MATERIAL_LENGTH*2]; |
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| 203 | |
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| 204 | unsigned long read_sequence; |
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| 205 | unsigned long write_sequence; |
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| 206 | |
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| 207 | struct { |
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| 208 | unsigned int conn_id_length; |
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| 209 | unsigned int cert_type; |
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| 210 | unsigned int cert_length; |
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| 211 | unsigned int csl; |
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| 212 | unsigned int clear; |
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| 213 | unsigned int enc; |
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| 214 | unsigned char ccl[SSL2_MAX_CERT_CHALLENGE_LENGTH]; |
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| 215 | unsigned int cipher_spec_length; |
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| 216 | unsigned int session_id_length; |
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| 217 | unsigned int clen; |
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| 218 | unsigned int rlen; |
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| 219 | } tmp; |
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| 220 | } SSL2_STATE; |
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| 221 | |
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| 222 | /* SSLv2 */ |
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| 223 | /* client */ |
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| 224 | #define SSL2_ST_SEND_CLIENT_HELLO_A (0x10|SSL_ST_CONNECT) |
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| 225 | #define SSL2_ST_SEND_CLIENT_HELLO_B (0x11|SSL_ST_CONNECT) |
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| 226 | #define SSL2_ST_GET_SERVER_HELLO_A (0x20|SSL_ST_CONNECT) |
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| 227 | #define SSL2_ST_GET_SERVER_HELLO_B (0x21|SSL_ST_CONNECT) |
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| 228 | #define SSL2_ST_SEND_CLIENT_MASTER_KEY_A (0x30|SSL_ST_CONNECT) |
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| 229 | #define SSL2_ST_SEND_CLIENT_MASTER_KEY_B (0x31|SSL_ST_CONNECT) |
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| 230 | #define SSL2_ST_SEND_CLIENT_FINISHED_A (0x40|SSL_ST_CONNECT) |
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| 231 | #define SSL2_ST_SEND_CLIENT_FINISHED_B (0x41|SSL_ST_CONNECT) |
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| 232 | #define SSL2_ST_SEND_CLIENT_CERTIFICATE_A (0x50|SSL_ST_CONNECT) |
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| 233 | #define SSL2_ST_SEND_CLIENT_CERTIFICATE_B (0x51|SSL_ST_CONNECT) |
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| 234 | #define SSL2_ST_SEND_CLIENT_CERTIFICATE_C (0x52|SSL_ST_CONNECT) |
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| 235 | #define SSL2_ST_SEND_CLIENT_CERTIFICATE_D (0x53|SSL_ST_CONNECT) |
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| 236 | #define SSL2_ST_GET_SERVER_VERIFY_A (0x60|SSL_ST_CONNECT) |
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| 237 | #define SSL2_ST_GET_SERVER_VERIFY_B (0x61|SSL_ST_CONNECT) |
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| 238 | #define SSL2_ST_GET_SERVER_FINISHED_A (0x70|SSL_ST_CONNECT) |
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| 239 | #define SSL2_ST_GET_SERVER_FINISHED_B (0x71|SSL_ST_CONNECT) |
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| 240 | #define SSL2_ST_CLIENT_START_ENCRYPTION (0x80|SSL_ST_CONNECT) |
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| 241 | #define SSL2_ST_X509_GET_CLIENT_CERTIFICATE (0x90|SSL_ST_CONNECT) |
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| 242 | /* server */ |
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| 243 | #define SSL2_ST_GET_CLIENT_HELLO_A (0x10|SSL_ST_ACCEPT) |
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| 244 | #define SSL2_ST_GET_CLIENT_HELLO_B (0x11|SSL_ST_ACCEPT) |
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| 245 | #define SSL2_ST_GET_CLIENT_HELLO_C (0x12|SSL_ST_ACCEPT) |
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| 246 | #define SSL2_ST_SEND_SERVER_HELLO_A (0x20|SSL_ST_ACCEPT) |
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| 247 | #define SSL2_ST_SEND_SERVER_HELLO_B (0x21|SSL_ST_ACCEPT) |
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| 248 | #define SSL2_ST_GET_CLIENT_MASTER_KEY_A (0x30|SSL_ST_ACCEPT) |
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| 249 | #define SSL2_ST_GET_CLIENT_MASTER_KEY_B (0x31|SSL_ST_ACCEPT) |
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| 250 | #define SSL2_ST_SEND_SERVER_VERIFY_A (0x40|SSL_ST_ACCEPT) |
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| 251 | #define SSL2_ST_SEND_SERVER_VERIFY_B (0x41|SSL_ST_ACCEPT) |
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| 252 | #define SSL2_ST_SEND_SERVER_VERIFY_C (0x42|SSL_ST_ACCEPT) |
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| 253 | #define SSL2_ST_GET_CLIENT_FINISHED_A (0x50|SSL_ST_ACCEPT) |
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| 254 | #define SSL2_ST_GET_CLIENT_FINISHED_B (0x51|SSL_ST_ACCEPT) |
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| 255 | #define SSL2_ST_SEND_SERVER_FINISHED_A (0x60|SSL_ST_ACCEPT) |
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| 256 | #define SSL2_ST_SEND_SERVER_FINISHED_B (0x61|SSL_ST_ACCEPT) |
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| 257 | #define SSL2_ST_SEND_REQUEST_CERTIFICATE_A (0x70|SSL_ST_ACCEPT) |
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| 258 | #define SSL2_ST_SEND_REQUEST_CERTIFICATE_B (0x71|SSL_ST_ACCEPT) |
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| 259 | #define SSL2_ST_SEND_REQUEST_CERTIFICATE_C (0x72|SSL_ST_ACCEPT) |
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| 260 | #define SSL2_ST_SEND_REQUEST_CERTIFICATE_D (0x73|SSL_ST_ACCEPT) |
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| 261 | #define SSL2_ST_SERVER_START_ENCRYPTION (0x80|SSL_ST_ACCEPT) |
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| 262 | #define SSL2_ST_X509_GET_SERVER_CERTIFICATE (0x90|SSL_ST_ACCEPT) |
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| 263 | |
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| 264 | #ifdef __cplusplus |
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| 265 | } |
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| 266 | #endif |
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| 267 | #endif |
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| 268 | |
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