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openssl/ssl/ssl2.h
Dr. Stephen Henson 74096890ba Initial "opaque SSL" framework. If an application defines OPENSSL_NO_SSL_INTERN 
all ssl related structures are opaque and internals cannot be directly
accessed. Many applications will need some modification to support this and
most likely some additional functions added to OpenSSL.

The advantage of this option is that any application supporting it will still
be binary compatible if SSL structures change.

(backport from HEAD).
2011-05-11 12:56:38 +00:00

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/* ssl/ssl2.h */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#ifndef HEADER_SSL2_H
#define HEADER_SSL2_H
#ifdef __cplusplus
extern "C" {
#endif
/* Protocol Version Codes */
#define SSL2_VERSION 0x0002
#define SSL2_VERSION_MAJOR 0x00
#define SSL2_VERSION_MINOR 0x02
/* #define SSL2_CLIENT_VERSION 0x0002 */
/* #define SSL2_SERVER_VERSION 0x0002 */
/* Protocol Message Codes */
#define SSL2_MT_ERROR 0
#define SSL2_MT_CLIENT_HELLO 1
#define SSL2_MT_CLIENT_MASTER_KEY 2
#define SSL2_MT_CLIENT_FINISHED 3
#define SSL2_MT_SERVER_HELLO 4
#define SSL2_MT_SERVER_VERIFY 5
#define SSL2_MT_SERVER_FINISHED 6
#define SSL2_MT_REQUEST_CERTIFICATE 7
#define SSL2_MT_CLIENT_CERTIFICATE 8
/* Error Message Codes */
#define SSL2_PE_UNDEFINED_ERROR 0x0000
#define SSL2_PE_NO_CIPHER 0x0001
#define SSL2_PE_NO_CERTIFICATE 0x0002
#define SSL2_PE_BAD_CERTIFICATE 0x0004
#define SSL2_PE_UNSUPPORTED_CERTIFICATE_TYPE 0x0006
/* Cipher Kind Values */
#define SSL2_CK_NULL_WITH_MD5 0x02000000 /* v3 */
#define SSL2_CK_RC4_128_WITH_MD5 0x02010080
#define SSL2_CK_RC4_128_EXPORT40_WITH_MD5 0x02020080
#define SSL2_CK_RC2_128_CBC_WITH_MD5 0x02030080
#define SSL2_CK_RC2_128_CBC_EXPORT40_WITH_MD5 0x02040080
#define SSL2_CK_IDEA_128_CBC_WITH_MD5 0x02050080
#define SSL2_CK_DES_64_CBC_WITH_MD5 0x02060040
#define SSL2_CK_DES_64_CBC_WITH_SHA 0x02060140 /* v3 */
#define SSL2_CK_DES_192_EDE3_CBC_WITH_MD5 0x020700c0
#define SSL2_CK_DES_192_EDE3_CBC_WITH_SHA 0x020701c0 /* v3 */
#define SSL2_CK_RC4_64_WITH_MD5 0x02080080 /* MS hack */
#define SSL2_CK_DES_64_CFB64_WITH_MD5_1 0x02ff0800 /* SSLeay */
#define SSL2_CK_NULL 0x02ff0810 /* SSLeay */
#define SSL2_TXT_DES_64_CFB64_WITH_MD5_1 "DES-CFB-M1"
#define SSL2_TXT_NULL_WITH_MD5 "NULL-MD5"
#define SSL2_TXT_RC4_128_WITH_MD5 "RC4-MD5"
#define SSL2_TXT_RC4_128_EXPORT40_WITH_MD5 "EXP-RC4-MD5"
#define SSL2_TXT_RC2_128_CBC_WITH_MD5 "RC2-CBC-MD5"
#define SSL2_TXT_RC2_128_CBC_EXPORT40_WITH_MD5 "EXP-RC2-CBC-MD5"
#define SSL2_TXT_IDEA_128_CBC_WITH_MD5 "IDEA-CBC-MD5"
#define SSL2_TXT_DES_64_CBC_WITH_MD5 "DES-CBC-MD5"
#define SSL2_TXT_DES_64_CBC_WITH_SHA "DES-CBC-SHA"
#define SSL2_TXT_DES_192_EDE3_CBC_WITH_MD5 "DES-CBC3-MD5"
#define SSL2_TXT_DES_192_EDE3_CBC_WITH_SHA "DES-CBC3-SHA"
#define SSL2_TXT_RC4_64_WITH_MD5 "RC4-64-MD5"
#define SSL2_TXT_NULL "NULL"
/* Flags for the SSL_CIPHER.algorithm2 field */
#define SSL2_CF_5_BYTE_ENC 0x01
#define SSL2_CF_8_BYTE_ENC 0x02
/* Certificate Type Codes */
#define SSL2_CT_X509_CERTIFICATE 0x01
/* Authentication Type Code */
#define SSL2_AT_MD5_WITH_RSA_ENCRYPTION 0x01
#define SSL2_MAX_SSL_SESSION_ID_LENGTH 32
/* Upper/Lower Bounds */
#define SSL2_MAX_MASTER_KEY_LENGTH_IN_BITS 256
#ifdef OPENSSL_SYS_MPE
#define SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER 29998u
#else
#define SSL2_MAX_RECORD_LENGTH_2_BYTE_HEADER 32767u /* 2^15-1 */
#endif
#define SSL2_MAX_RECORD_LENGTH_3_BYTE_HEADER 16383 /* 2^14-1 */
#define SSL2_CHALLENGE_LENGTH 16
/*#define SSL2_CHALLENGE_LENGTH 32 */
#define SSL2_MIN_CHALLENGE_LENGTH 16
#define SSL2_MAX_CHALLENGE_LENGTH 32
#define SSL2_CONNECTION_ID_LENGTH 16
#define SSL2_MAX_CONNECTION_ID_LENGTH 16
#define SSL2_SSL_SESSION_ID_LENGTH 16
#define SSL2_MAX_CERT_CHALLENGE_LENGTH 32
#define SSL2_MIN_CERT_CHALLENGE_LENGTH 16
#define SSL2_MAX_KEY_MATERIAL_LENGTH 24
#ifndef HEADER_SSL_LOCL_H
#define CERT char
#endif
#ifndef OPENSSL_NO_SSL_INTERN
typedef struct ssl2_state_st
{
int three_byte_header;
int clear_text; /* clear text */
int escape; /* not used in SSLv2 */
int ssl2_rollback; /* used if SSLv23 rolled back to SSLv2 */
/* non-blocking io info, used to make sure the same
* args were passwd */
unsigned int wnum; /* number of bytes sent so far */
int wpend_tot;
const unsigned char *wpend_buf;
int wpend_off; /* offset to data to write */
int wpend_len; /* number of bytes passwd to write */
int wpend_ret; /* number of bytes to return to caller */
/* buffer raw data */
int rbuf_left;
int rbuf_offs;
unsigned char *rbuf;
unsigned char *wbuf;
unsigned char *write_ptr;/* used to point to the start due to
* 2/3 byte header. */
unsigned int padding;
unsigned int rlength; /* passed to ssl2_enc */
int ract_data_length; /* Set when things are encrypted. */
unsigned int wlength; /* passed to ssl2_enc */
int wact_data_length; /* Set when things are decrypted. */
unsigned char *ract_data;
unsigned char *wact_data;
unsigned char *mac_data;
unsigned char *read_key;
unsigned char *write_key;
/* Stuff specifically to do with this SSL session */
unsigned int challenge_length;
unsigned char challenge[SSL2_MAX_CHALLENGE_LENGTH];
unsigned int conn_id_length;
unsigned char conn_id[SSL2_MAX_CONNECTION_ID_LENGTH];
unsigned int key_material_length;
unsigned char key_material[SSL2_MAX_KEY_MATERIAL_LENGTH*2];
unsigned long read_sequence;
unsigned long write_sequence;
struct {
unsigned int conn_id_length;
unsigned int cert_type;
unsigned int cert_length;
unsigned int csl;
unsigned int clear;
unsigned int enc;
unsigned char ccl[SSL2_MAX_CERT_CHALLENGE_LENGTH];
unsigned int cipher_spec_length;
unsigned int session_id_length;
unsigned int clen;
unsigned int rlen;
} tmp;
} SSL2_STATE;
#endif
/* SSLv2 */
/* client */
#define SSL2_ST_SEND_CLIENT_HELLO_A (0x10|SSL_ST_CONNECT)
#define SSL2_ST_SEND_CLIENT_HELLO_B (0x11|SSL_ST_CONNECT)
#define SSL2_ST_GET_SERVER_HELLO_A (0x20|SSL_ST_CONNECT)
#define SSL2_ST_GET_SERVER_HELLO_B (0x21|SSL_ST_CONNECT)
#define SSL2_ST_SEND_CLIENT_MASTER_KEY_A (0x30|SSL_ST_CONNECT)
#define SSL2_ST_SEND_CLIENT_MASTER_KEY_B (0x31|SSL_ST_CONNECT)
#define SSL2_ST_SEND_CLIENT_FINISHED_A (0x40|SSL_ST_CONNECT)
#define SSL2_ST_SEND_CLIENT_FINISHED_B (0x41|SSL_ST_CONNECT)
#define SSL2_ST_SEND_CLIENT_CERTIFICATE_A (0x50|SSL_ST_CONNECT)
#define SSL2_ST_SEND_CLIENT_CERTIFICATE_B (0x51|SSL_ST_CONNECT)
#define SSL2_ST_SEND_CLIENT_CERTIFICATE_C (0x52|SSL_ST_CONNECT)
#define SSL2_ST_SEND_CLIENT_CERTIFICATE_D (0x53|SSL_ST_CONNECT)
#define SSL2_ST_GET_SERVER_VERIFY_A (0x60|SSL_ST_CONNECT)
#define SSL2_ST_GET_SERVER_VERIFY_B (0x61|SSL_ST_CONNECT)
#define SSL2_ST_GET_SERVER_FINISHED_A (0x70|SSL_ST_CONNECT)
#define SSL2_ST_GET_SERVER_FINISHED_B (0x71|SSL_ST_CONNECT)
#define SSL2_ST_CLIENT_START_ENCRYPTION (0x80|SSL_ST_CONNECT)
#define SSL2_ST_X509_GET_CLIENT_CERTIFICATE (0x90|SSL_ST_CONNECT)
/* server */
#define SSL2_ST_GET_CLIENT_HELLO_A (0x10|SSL_ST_ACCEPT)
#define SSL2_ST_GET_CLIENT_HELLO_B (0x11|SSL_ST_ACCEPT)
#define SSL2_ST_GET_CLIENT_HELLO_C (0x12|SSL_ST_ACCEPT)
#define SSL2_ST_SEND_SERVER_HELLO_A (0x20|SSL_ST_ACCEPT)
#define SSL2_ST_SEND_SERVER_HELLO_B (0x21|SSL_ST_ACCEPT)
#define SSL2_ST_GET_CLIENT_MASTER_KEY_A (0x30|SSL_ST_ACCEPT)
#define SSL2_ST_GET_CLIENT_MASTER_KEY_B (0x31|SSL_ST_ACCEPT)
#define SSL2_ST_SEND_SERVER_VERIFY_A (0x40|SSL_ST_ACCEPT)
#define SSL2_ST_SEND_SERVER_VERIFY_B (0x41|SSL_ST_ACCEPT)
#define SSL2_ST_SEND_SERVER_VERIFY_C (0x42|SSL_ST_ACCEPT)
#define SSL2_ST_GET_CLIENT_FINISHED_A (0x50|SSL_ST_ACCEPT)
#define SSL2_ST_GET_CLIENT_FINISHED_B (0x51|SSL_ST_ACCEPT)
#define SSL2_ST_SEND_SERVER_FINISHED_A (0x60|SSL_ST_ACCEPT)
#define SSL2_ST_SEND_SERVER_FINISHED_B (0x61|SSL_ST_ACCEPT)
#define SSL2_ST_SEND_REQUEST_CERTIFICATE_A (0x70|SSL_ST_ACCEPT)
#define SSL2_ST_SEND_REQUEST_CERTIFICATE_B (0x71|SSL_ST_ACCEPT)
#define SSL2_ST_SEND_REQUEST_CERTIFICATE_C (0x72|SSL_ST_ACCEPT)
#define SSL2_ST_SEND_REQUEST_CERTIFICATE_D (0x73|SSL_ST_ACCEPT)
#define SSL2_ST_SERVER_START_ENCRYPTION (0x80|SSL_ST_ACCEPT)
#define SSL2_ST_X509_GET_SERVER_CERTIFICATE (0x90|SSL_ST_ACCEPT)
#ifdef __cplusplus
}
#endif
#endif
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