1/* ssl/ssl2.h */ 2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59#ifndef HEADER_SSL2_H 60#define HEADER_SSL2_H 61 62#ifdef __cplusplus 63extern "C" { 64#endif 65 66/* Protocol Version Codes */ 67#define SSL2_VERSION 0x0002 68#define SSL2_VERSION_MAJOR 0x00 69#define SSL2_VERSION_MINOR 0x02 70/* #define SSL2_CLIENT_VERSION 0x0002 */ 71/* #define SSL2_SERVER_VERSION 0x0002 */ 72 73/* Protocol Message Codes */ 74#define SSL2_MT_ERROR 0 75#define SSL2_MT_CLIENT_HELLO 1 76#define SSL2_MT_CLIENT_MASTER_KEY 2 77#define SSL2_MT_CLIENT_FINISHED 3 78#define SSL2_MT_SERVER_HELLO 4 79#define SSL2_MT_SERVER_VERIFY 5 80#define SSL2_MT_SERVER_FINISHED 6 81#define SSL2_MT_REQUEST_CERTIFICATE 7 82#define SSL2_MT_CLIENT_CERTIFICATE 8 83 84/* Error Message Codes */ 85#define SSL2_PE_UNDEFINED_ERROR 0x0000 86#define SSL2_PE_NO_CIPHER 0x0001 87#define SSL2_PE_NO_CERTIFICATE 0x0002 88#define SSL2_PE_BAD_CERTIFICATE 0x0004 89#define SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE 0x0006 90 91/* Cipher Kind Values */ 92#define SSL2_CK_NULL_WITH_MD5 0x02000000 /* v3 */ 93#define SSL2_CK_RC4_128_WITH_MD5 0x02010080 94#define SSL2_CK_RC4_128_EXPORT40_WITH_MD5 0x02020080 95#define SSL2_CK_RC2_128_CBC_WITH_MD5 0x02030080 96#define SSL2_CK_RC2_128_CBC_EXPORT40_WITH_MD5 0x02040080 97#define SSL2_CK_IDEA_128_CBC_WITH_MD5 0x02050080 98#define SSL2_CK_DES_64_CBC_WITH_MD5 0x02060040 99#define SSL2_CK_DES_64_CBC_WITH_SHA 0x02060140 /* v3 */ 100#define SSL2_CK_DES_192_EDE3_CBC_WITH_MD5 0x020700c0 101#define SSL2_CK_DES_192_EDE3_CBC_WITH_SHA 0x020701c0 /* v3 */ 102#define SSL2_CK_RC4_64_WITH_MD5 0x02080080 /* MS hack */ 103 104#define SSL2_CK_DES_64_CFB64_WITH_MD5_1 0x02ff0800 /* SSLeay */ 105#define SSL2_CK_NULL 0x02ff0810 /* SSLeay */ 106 107#define SSL2_TXT_DES_64_CFB64_WITH_MD5_1 "DES-CFB-M1" 108#define SSL2_TXT_NULL_WITH_MD5 "NULL-MD5" 109#define SSL2_TXT_RC4_128_WITH_MD5 "RC4-MD5" 110#define SSL2_TXT_RC4_128_EXPORT40_WITH_MD5 "EXP-RC4-MD5" 111#define SSL2_TXT_RC2_128_CBC_WITH_MD5 "RC2-CBC-MD5" 112#define SSL2_TXT_RC2_128_CBC_EXPORT40_WITH_MD5 "EXP-RC2-CBC-MD5" 113#define SSL2_TXT_IDEA_128_CBC_WITH_MD5 "IDEA-CBC-MD5" 114#define SSL2_TXT_DES_64_CBC_WITH_MD5 "DES-CBC-MD5" 115#define SSL2_TXT_DES_64_CBC_WITH_SHA "DES-CBC-SHA" 116#define SSL2_TXT_DES_192_EDE3_CBC_WITH_MD5 "DES-CBC3-MD5" 117#define SSL2_TXT_DES_192_EDE3_CBC_WITH_SHA "DES-CBC3-SHA" 118#define SSL2_TXT_RC4_64_WITH_MD5 "RC4-64-MD5" 119 120#define SSL2_TXT_NULL "NULL" 121 122/* Flags for the SSL_CIPHER.algorithm2 field */ 123#define SSL2_CF_5_BYTE_ENC 0x01 124#define SSL2_CF_8_BYTE_ENC 0x02 125 126/* Certificate Type Codes */ 127#define SSL2_CT_X509_CERTIFICATE 0x01 128 129/* Authentication Type Code */ 130#define SSL2_AT_MD5_WITH_RSA_ENCRYPTION 0x01 131 132#define SSL2_MAX_SSL_SESSION_ID_LENGTH 32 133 134/* Upper/Lower Bounds */ 135#define SSL2_MAX_MASTER_KEY_LENGTH_IN_BITS 256 136#ifdef OPENSSL_SYS_MPE 137#define SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER 29998u 138#else 139#define SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER 32767u /* 2^15-1 */ 140#endif 141#define SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER 16383 /* 2^14-1 */ 142 143#define SSL2_CHALLENGE_LENGTH 16 144/*#define SSL2_CHALLENGE_LENGTH 32 */ 145#define SSL2_MIN_CHALLENGE_LENGTH 16 146#define SSL2_MAX_CHALLENGE_LENGTH 32 147#define SSL2_CONNECTION_ID_LENGTH 16 148#define SSL2_MAX_CONNECTION_ID_LENGTH 16 149#define SSL2_SSL_SESSION_ID_LENGTH 16 150#define SSL2_MAX_CERT_CHALLENGE_LENGTH 32 151#define SSL2_MIN_CERT_CHALLENGE_LENGTH 16 152#define SSL2_MAX_KEY_MATERIAL_LENGTH 24 153 154#ifndef HEADER_SSL_LOCL_H 155#define CERT char 156#endif 157 158typedef struct ssl2_state_st 159 { 160 int three_byte_header; 161 int clear_text; /* clear text */ 162 int escape; /* not used in SSLv2 */ 163 int ssl2_rollback; /* used if SSLv23 rolled back to SSLv2 */ 164 165 /* non-blocking io info, used to make sure the same 166 * args were passwd */ 167 unsigned int wnum; /* number of bytes sent so far */ 168 int wpend_tot; 169 const unsigned char *wpend_buf; 170 171 int wpend_off; /* offset to data to write */ 172 int wpend_len; /* number of bytes passwd to write */ 173 int wpend_ret; /* number of bytes to return to caller */ 174 175 /* buffer raw data */ 176 int rbuf_left; 177 int rbuf_offs; 178 unsigned char *rbuf; 179 unsigned char *wbuf; 180 181 unsigned char *write_ptr;/* used to point to the start due to 182 * 2/3 byte header. */ 183 184 unsigned int padding; 185 unsigned int rlength; /* passed to ssl2_enc */ 186 int ract_data_length; /* Set when things are encrypted. */ 187 unsigned int wlength; /* passed to ssl2_enc */ 188 int wact_data_length; /* Set when things are decrypted. */ 189 unsigned char *ract_data; 190 unsigned char *wact_data; 191 unsigned char *mac_data; 192 193 unsigned char *read_key; 194 unsigned char *write_key; 195 196 /* Stuff specifically to do with this SSL session */ 197 unsigned int challenge_length; 198 unsigned char challenge[SSL2_MAX_CHALLENGE_LENGTH]; 199 unsigned int conn_id_length; 200 unsigned char conn_id[SSL2_MAX_CONNECTION_ID_LENGTH]; 201 unsigned int key_material_length; 202 unsigned char key_material[SSL2_MAX_KEY_MATERIAL_LENGTH*2]; 203 204 unsigned long read_sequence; 205 unsigned long write_sequence; 206 207 struct { 208 unsigned int conn_id_length; 209 unsigned int cert_type; 210 unsigned int cert_length; 211 unsigned int csl; 212 unsigned int clear; 213 unsigned int enc; 214 unsigned char ccl[SSL2_MAX_CERT_CHALLENGE_LENGTH]; 215 unsigned int cipher_spec_length; 216 unsigned int session_id_length; 217 unsigned int clen; 218 unsigned int rlen; 219 } tmp; 220 } SSL2_STATE; 221 222/* SSLv2 */ 223/* client */ 224#define SSL2_ST_SEND_CLIENT_HELLO_A (0x10|SSL_ST_CONNECT) 225#define SSL2_ST_SEND_CLIENT_HELLO_B (0x11|SSL_ST_CONNECT) 226#define SSL2_ST_GET_SERVER_HELLO_A (0x20|SSL_ST_CONNECT) 227#define SSL2_ST_GET_SERVER_HELLO_B (0x21|SSL_ST_CONNECT) 228#define SSL2_ST_SEND_CLIENT_MASTER_KEY_A (0x30|SSL_ST_CONNECT) 229#define SSL2_ST_SEND_CLIENT_MASTER_KEY_B (0x31|SSL_ST_CONNECT) 230#define SSL2_ST_SEND_CLIENT_FINISHED_A (0x40|SSL_ST_CONNECT) 231#define SSL2_ST_SEND_CLIENT_FINISHED_B (0x41|SSL_ST_CONNECT) 232#define SSL2_ST_SEND_CLIENT_CERTIFICATE_A (0x50|SSL_ST_CONNECT) 233#define SSL2_ST_SEND_CLIENT_CERTIFICATE_B (0x51|SSL_ST_CONNECT) 234#define SSL2_ST_SEND_CLIENT_CERTIFICATE_C (0x52|SSL_ST_CONNECT) 235#define SSL2_ST_SEND_CLIENT_CERTIFICATE_D (0x53|SSL_ST_CONNECT) 236#define SSL2_ST_GET_SERVER_VERIFY_A (0x60|SSL_ST_CONNECT) 237#define SSL2_ST_GET_SERVER_VERIFY_B (0x61|SSL_ST_CONNECT) 238#define SSL2_ST_GET_SERVER_FINISHED_A (0x70|SSL_ST_CONNECT) 239#define SSL2_ST_GET_SERVER_FINISHED_B (0x71|SSL_ST_CONNECT) 240#define SSL2_ST_CLIENT_START_ENCRYPTION (0x80|SSL_ST_CONNECT) 241#define SSL2_ST_X509_GET_CLIENT_CERTIFICATE (0x90|SSL_ST_CONNECT) 242/* server */ 243#define SSL2_ST_GET_CLIENT_HELLO_A (0x10|SSL_ST_ACCEPT) 244#define SSL2_ST_GET_CLIENT_HELLO_B (0x11|SSL_ST_ACCEPT) 245#define SSL2_ST_GET_CLIENT_HELLO_C (0x12|SSL_ST_ACCEPT) 246#define SSL2_ST_SEND_SERVER_HELLO_A (0x20|SSL_ST_ACCEPT) 247#define SSL2_ST_SEND_SERVER_HELLO_B (0x21|SSL_ST_ACCEPT) 248#define SSL2_ST_GET_CLIENT_MASTER_KEY_A (0x30|SSL_ST_ACCEPT) 249#define SSL2_ST_GET_CLIENT_MASTER_KEY_B (0x31|SSL_ST_ACCEPT) 250#define SSL2_ST_SEND_SERVER_VERIFY_A (0x40|SSL_ST_ACCEPT) 251#define SSL2_ST_SEND_SERVER_VERIFY_B (0x41|SSL_ST_ACCEPT) 252#define SSL2_ST_SEND_SERVER_VERIFY_C (0x42|SSL_ST_ACCEPT) 253#define SSL2_ST_GET_CLIENT_FINISHED_A (0x50|SSL_ST_ACCEPT) 254#define SSL2_ST_GET_CLIENT_FINISHED_B (0x51|SSL_ST_ACCEPT) 255#define SSL2_ST_SEND_SERVER_FINISHED_A (0x60|SSL_ST_ACCEPT) 256#define SSL2_ST_SEND_SERVER_FINISHED_B (0x61|SSL_ST_ACCEPT) 257#define SSL2_ST_SEND_REQUEST_CERTIFICATE_A (0x70|SSL_ST_ACCEPT) 258#define SSL2_ST_SEND_REQUEST_CERTIFICATE_B (0x71|SSL_ST_ACCEPT) 259#define SSL2_ST_SEND_REQUEST_CERTIFICATE_C (0x72|SSL_ST_ACCEPT) 260#define SSL2_ST_SEND_REQUEST_CERTIFICATE_D (0x73|SSL_ST_ACCEPT) 261#define SSL2_ST_SERVER_START_ENCRYPTION (0x80|SSL_ST_ACCEPT) 262#define SSL2_ST_X509_GET_SERVER_CERTIFICATE (0x90|SSL_ST_ACCEPT) 263 264#ifdef __cplusplus 265} 266#endif 267#endif 268 269