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 HEADER_SSL_LOCL_H
  155: #define  CERT           char
  156: #endif
  157: 
  158: typedef 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: