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 63 extern "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 OPENSSL_NO_SSL_INTERN 155 156 typedef struct ssl2_state_st 157 { 158 int three_byte_header; 159 int clear_text; /* clear text */ 160 int escape; /* not used in SSLv2 */ 161 int ssl2_rollback; /* used if SSLv23 rolled back to SSLv2 */ 162 163 /* non-blocking io info, used to make sure the same 164 * args were passwd */ 165 unsigned int wnum; /* number of bytes sent so far */ 166 int wpend_tot; 167 const unsigned char *wpend_buf; 168 169 int wpend_off; /* offset to data to write */ 170 int wpend_len; /* number of bytes passwd to write */ 171 int wpend_ret; /* number of bytes to return to caller */ 172 173 /* buffer raw data */ 174 int rbuf_left; 175 int rbuf_offs; 176 unsigned char *rbuf; 177 unsigned char *wbuf; 178 179 unsigned char *write_ptr;/* used to point to the start due to 180 * 2/3 byte header. */ 181 182 unsigned int padding; 183 unsigned int rlength; /* passed to ssl2_enc */ 184 int ract_data_length; /* Set when things are encrypted. */ 185 unsigned int wlength; /* passed to ssl2_enc */ 186 int wact_data_length; /* Set when things are decrypted. */ 187 unsigned char *ract_data; 188 unsigned char *wact_data; 189 unsigned char *mac_data; 190 191 unsigned char *read_key; 192 unsigned char *write_key; 193 194 /* Stuff specifically to do with this SSL session */ 195 unsigned int challenge_length; 196 unsigned char challenge[SSL2_MAX_CHALLENGE_LENGTH]; 197 unsigned int conn_id_length; 198 unsigned char conn_id[SSL2_MAX_CONNECTION_ID_LENGTH]; 199 unsigned int key_material_length; 200 unsigned char key_material[SSL2_MAX_KEY_MATERIAL_LENGTH*2]; 201 202 unsigned long read_sequence; 203 unsigned long write_sequence; 204 205 struct { 206 unsigned int conn_id_length; 207 unsigned int cert_type; 208 unsigned int cert_length; 209 unsigned int csl; 210 unsigned int clear; 211 unsigned int enc; 212 unsigned char ccl[SSL2_MAX_CERT_CHALLENGE_LENGTH]; 213 unsigned int cipher_spec_length; 214 unsigned int session_id_length; 215 unsigned int clen; 216 unsigned int rlen; 217 } tmp; 218 } SSL2_STATE; 219 220 #endif 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