ssl3.h

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/* ssl/ssl3.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.]
 */
/* ====================================================================
 * Copyright (c) 1998-2002 The OpenSSL Project.  All rights reserved.
 *
 * 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 above 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 acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    openssl-core@openssl.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED 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 OpenSSL PROJECT OR
 * ITS 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.
 * ====================================================================
 *
 * This product includes cryptographic software written by Eric Young
 * (eay@cryptsoft.com).  This product includes software written by Tim
 * Hudson (tjh@cryptsoft.com).
 *
 */
/* ====================================================================
 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 * ECC cipher suite support in OpenSSL originally developed by
 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
 */

#ifndef HEADER_SSL3_H
#define HEADER_SSL3_H

#ifndef OPENSSL_NO_COMP
#include <openssl/comp.h>
#endif
#include <openssl/buffer.h>
#include <openssl/evp.h>
#include <openssl/ssl.h>
#include <openssl/pq_compat.h>

#ifdef  __cplusplus
extern "C" {
#endif

#define SSL3_CK_RSA_NULL_MD5        0x03000001
#define SSL3_CK_RSA_NULL_SHA        0x03000002
#define SSL3_CK_RSA_RC4_40_MD5         0x03000003
#define SSL3_CK_RSA_RC4_128_MD5        0x03000004
#define SSL3_CK_RSA_RC4_128_SHA        0x03000005
#define SSL3_CK_RSA_RC2_40_MD5         0x03000006
#define SSL3_CK_RSA_IDEA_128_SHA    0x03000007
#define SSL3_CK_RSA_DES_40_CBC_SHA     0x03000008
#define SSL3_CK_RSA_DES_64_CBC_SHA     0x03000009
#define SSL3_CK_RSA_DES_192_CBC3_SHA      0x0300000A

#define SSL3_CK_DH_DSS_DES_40_CBC_SHA     0x0300000B
#define SSL3_CK_DH_DSS_DES_64_CBC_SHA     0x0300000C
#define SSL3_CK_DH_DSS_DES_192_CBC3_SHA   0x0300000D
#define SSL3_CK_DH_RSA_DES_40_CBC_SHA     0x0300000E
#define SSL3_CK_DH_RSA_DES_64_CBC_SHA     0x0300000F
#define SSL3_CK_DH_RSA_DES_192_CBC3_SHA   0x03000010

#define SSL3_CK_EDH_DSS_DES_40_CBC_SHA    0x03000011
#define SSL3_CK_EDH_DSS_DES_64_CBC_SHA    0x03000012
#define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA  0x03000013
#define SSL3_CK_EDH_RSA_DES_40_CBC_SHA    0x03000014
#define SSL3_CK_EDH_RSA_DES_64_CBC_SHA    0x03000015
#define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA  0x03000016

#define SSL3_CK_ADH_RC4_40_MD5         0x03000017
#define SSL3_CK_ADH_RC4_128_MD5        0x03000018
#define SSL3_CK_ADH_DES_40_CBC_SHA     0x03000019
#define SSL3_CK_ADH_DES_64_CBC_SHA     0x0300001A
#define SSL3_CK_ADH_DES_192_CBC_SHA    0x0300001B

#define SSL3_CK_FZA_DMS_NULL_SHA    0x0300001C
#define SSL3_CK_FZA_DMS_FZA_SHA        0x0300001D
#if 0 /* Because it clashes with KRB5, is never used any more, and is safe
    to remove according to David Hopwood <david.hopwood@zetnet.co.uk>
    of the ietf-tls list */
#define SSL3_CK_FZA_DMS_RC4_SHA        0x0300001E
#endif

/*    VRS Additional Kerberos5 entries
 */
#define SSL3_CK_KRB5_DES_64_CBC_SHA    0x0300001E
#define SSL3_CK_KRB5_DES_192_CBC3_SHA     0x0300001F
#define SSL3_CK_KRB5_RC4_128_SHA    0x03000020
#define SSL3_CK_KRB5_IDEA_128_CBC_SHA           0x03000021
#define SSL3_CK_KRB5_DES_64_CBC_MD5          0x03000022
#define SSL3_CK_KRB5_DES_192_CBC3_MD5        0x03000023
#define SSL3_CK_KRB5_RC4_128_MD5          0x03000024
#define SSL3_CK_KRB5_IDEA_128_CBC_MD5     0x03000025

#define SSL3_CK_KRB5_DES_40_CBC_SHA       0x03000026
#define SSL3_CK_KRB5_RC2_40_CBC_SHA       0x03000027
#define SSL3_CK_KRB5_RC4_40_SHA        0x03000028
#define SSL3_CK_KRB5_DES_40_CBC_MD5       0x03000029
#define SSL3_CK_KRB5_RC2_40_CBC_MD5       0x0300002A
#define SSL3_CK_KRB5_RC4_40_MD5        0x0300002B

#define SSL3_TXT_RSA_NULL_MD5       "NULL-MD5"
#define SSL3_TXT_RSA_NULL_SHA       "NULL-SHA"
#define SSL3_TXT_RSA_RC4_40_MD5     "EXP-RC4-MD5"
#define SSL3_TXT_RSA_RC4_128_MD5    "RC4-MD5"
#define SSL3_TXT_RSA_RC4_128_SHA    "RC4-SHA"
#define SSL3_TXT_RSA_RC2_40_MD5        "EXP-RC2-CBC-MD5"
#define SSL3_TXT_RSA_IDEA_128_SHA      "IDEA-CBC-SHA"
#define SSL3_TXT_RSA_DES_40_CBC_SHA    "EXP-DES-CBC-SHA"
#define SSL3_TXT_RSA_DES_64_CBC_SHA    "DES-CBC-SHA"
#define SSL3_TXT_RSA_DES_192_CBC3_SHA     "DES-CBC3-SHA"

#define SSL3_TXT_DH_DSS_DES_40_CBC_SHA    "EXP-DH-DSS-DES-CBC-SHA"
#define SSL3_TXT_DH_DSS_DES_64_CBC_SHA    "DH-DSS-DES-CBC-SHA"
#define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA  "DH-DSS-DES-CBC3-SHA"
#define SSL3_TXT_DH_RSA_DES_40_CBC_SHA    "EXP-DH-RSA-DES-CBC-SHA"
#define SSL3_TXT_DH_RSA_DES_64_CBC_SHA    "DH-RSA-DES-CBC-SHA"
#define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA  "DH-RSA-DES-CBC3-SHA"

#define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA      "EXP-EDH-DSS-DES-CBC-SHA"
#define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA      "EDH-DSS-DES-CBC-SHA"
#define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA "EDH-DSS-DES-CBC3-SHA"
#define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA      "EXP-EDH-RSA-DES-CBC-SHA"
#define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA      "EDH-RSA-DES-CBC-SHA"
#define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA "EDH-RSA-DES-CBC3-SHA"

#define SSL3_TXT_ADH_RC4_40_MD5        "EXP-ADH-RC4-MD5"
#define SSL3_TXT_ADH_RC4_128_MD5    "ADH-RC4-MD5"
#define SSL3_TXT_ADH_DES_40_CBC_SHA    "EXP-ADH-DES-CBC-SHA"
#define SSL3_TXT_ADH_DES_64_CBC_SHA    "ADH-DES-CBC-SHA"
#define SSL3_TXT_ADH_DES_192_CBC_SHA      "ADH-DES-CBC3-SHA"

#define SSL3_TXT_FZA_DMS_NULL_SHA      "FZA-NULL-SHA"
#define SSL3_TXT_FZA_DMS_FZA_SHA    "FZA-FZA-CBC-SHA"
#define SSL3_TXT_FZA_DMS_RC4_SHA    "FZA-RC4-SHA"

#define SSL3_TXT_KRB5_DES_64_CBC_SHA      "KRB5-DES-CBC-SHA"
#define SSL3_TXT_KRB5_DES_192_CBC3_SHA    "KRB5-DES-CBC3-SHA"
#define SSL3_TXT_KRB5_RC4_128_SHA      "KRB5-RC4-SHA"
#define SSL3_TXT_KRB5_IDEA_128_CBC_SHA          "KRB5-IDEA-CBC-SHA"
#define SSL3_TXT_KRB5_DES_64_CBC_MD5         "KRB5-DES-CBC-MD5"
#define SSL3_TXT_KRB5_DES_192_CBC3_MD5          "KRB5-DES-CBC3-MD5"
#define SSL3_TXT_KRB5_RC4_128_MD5      "KRB5-RC4-MD5"
#define SSL3_TXT_KRB5_IDEA_128_CBC_MD5       "KRB5-IDEA-CBC-MD5"

#define SSL3_TXT_KRB5_DES_40_CBC_SHA      "EXP-KRB5-DES-CBC-SHA"
#define SSL3_TXT_KRB5_RC2_40_CBC_SHA      "EXP-KRB5-RC2-CBC-SHA"
#define SSL3_TXT_KRB5_RC4_40_SHA    "EXP-KRB5-RC4-SHA"
#define SSL3_TXT_KRB5_DES_40_CBC_MD5      "EXP-KRB5-DES-CBC-MD5"
#define SSL3_TXT_KRB5_RC2_40_CBC_MD5      "EXP-KRB5-RC2-CBC-MD5"
#define SSL3_TXT_KRB5_RC4_40_MD5    "EXP-KRB5-RC4-MD5"

#define SSL3_SSL_SESSION_ID_LENGTH     32
#define SSL3_MAX_SSL_SESSION_ID_LENGTH    32

#define SSL3_MASTER_SECRET_SIZE        48
#define SSL3_RANDOM_SIZE         32
#define SSL3_SESSION_ID_SIZE        32
#define SSL3_RT_HEADER_LENGTH       5

/* Due to MS stuffing up, this can change.... */
#if defined(OPENSSL_SYS_WIN16) || \
   (defined(OPENSSL_SYS_MSDOS) && !defined(OPENSSL_SYS_WIN32))
#define SSL3_RT_MAX_EXTRA        (14000)
#else
#define SSL3_RT_MAX_EXTRA        (16384)
#endif

#define SSL3_RT_MAX_PLAIN_LENGTH    16384
#ifdef OPENSSL_NO_COMP
#define SSL3_RT_MAX_COMPRESSED_LENGTH  SSL3_RT_MAX_PLAIN_LENGTH
#else
#define SSL3_RT_MAX_COMPRESSED_LENGTH  (1024+SSL3_RT_MAX_PLAIN_LENGTH)
#endif
#define SSL3_RT_MAX_ENCRYPTED_LENGTH   (1024+SSL3_RT_MAX_COMPRESSED_LENGTH)
#define SSL3_RT_MAX_PACKET_SIZE     (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH)
#define SSL3_RT_MAX_DATA_SIZE       (1024*1024)

#define SSL3_MD_CLIENT_FINISHED_CONST  "\x43\x4C\x4E\x54"
#define SSL3_MD_SERVER_FINISHED_CONST  "\x53\x52\x56\x52"

#define SSL3_VERSION       0x0300
#define SSL3_VERSION_MAJOR    0x03
#define SSL3_VERSION_MINOR    0x00

#define SSL3_RT_CHANGE_CIPHER_SPEC  20
#define SSL3_RT_ALERT         21
#define SSL3_RT_HANDSHAKE     22
#define SSL3_RT_APPLICATION_DATA 23

#define SSL3_AL_WARNING       1
#define SSL3_AL_FATAL         2

#define SSL3_AD_CLOSE_NOTIFY      0
#define SSL3_AD_UNEXPECTED_MESSAGE  10 /* fatal */
#define SSL3_AD_BAD_RECORD_MAC      20 /* fatal */
#define SSL3_AD_DECOMPRESSION_FAILURE  30 /* fatal */
#define SSL3_AD_HANDSHAKE_FAILURE   40 /* fatal */
#define SSL3_AD_NO_CERTIFICATE      41
#define SSL3_AD_BAD_CERTIFICATE     42
#define SSL3_AD_UNSUPPORTED_CERTIFICATE   43
#define SSL3_AD_CERTIFICATE_REVOKED 44
#define SSL3_AD_CERTIFICATE_EXPIRED 45
#define SSL3_AD_CERTIFICATE_UNKNOWN 46
#define SSL3_AD_ILLEGAL_PARAMETER   47 /* fatal */

typedef struct ssl3_record_st
   {
/*r */   int type;               /* type of record */
/*rw*/   unsigned int length;    /* How many bytes available */
/*r */   unsigned int off;       /* read/write offset into 'buf' */
/*rw*/   unsigned char *data;    /* pointer to the record data */
/*rw*/   unsigned char *input;   /* where the decode bytes are */
/*r */   unsigned char *comp;    /* only used with decompression - malloc()ed */
/*r */  unsigned long epoch;    /* epoch number, needed by DTLS1 */
/*r */  PQ_64BIT seq_num;       /* sequence number, needed by DTLS1 */
   } SSL3_RECORD;

typedef struct ssl3_buffer_st
   {
   unsigned char *buf;     /* at least SSL3_RT_MAX_PACKET_SIZE bytes,
                            * see ssl3_setup_buffers() */
   size_t len;             /* buffer size */
   int offset;             /* where to 'copy from' */
   int left;               /* how many bytes left */
   } SSL3_BUFFER;

#define SSL3_CT_RSA_SIGN         1
#define SSL3_CT_DSS_SIGN         2
#define SSL3_CT_RSA_FIXED_DH        3
#define SSL3_CT_DSS_FIXED_DH        4
#define SSL3_CT_RSA_EPHEMERAL_DH    5
#define SSL3_CT_DSS_EPHEMERAL_DH    6
#define SSL3_CT_FORTEZZA_DMS        20
/* SSL3_CT_NUMBER is used to size arrays and it must be large
 * enough to contain all of the cert types defined either for
 * SSLv3 and TLSv1.
 */
#define SSL3_CT_NUMBER        7


#define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS 0x0001
#define SSL3_FLAGS_DELAY_CLIENT_FINISHED  0x0002
#define SSL3_FLAGS_POP_BUFFER       0x0004
#define TLS1_FLAGS_TLS_PADDING_BUG     0x0008

typedef struct ssl3_state_st
   {
   long flags;
   int delay_buf_pop_ret;

   unsigned char read_sequence[8];
   unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
   unsigned char write_sequence[8];
   unsigned char write_mac_secret[EVP_MAX_MD_SIZE];

   unsigned char server_random[SSL3_RANDOM_SIZE];
   unsigned char client_random[SSL3_RANDOM_SIZE];

   /* flags for countermeasure against known-IV weakness */
   int need_empty_fragments;
   int empty_fragment_done;

   SSL3_BUFFER rbuf; /* read IO goes into here */
   SSL3_BUFFER wbuf; /* write IO goes into here */

   SSL3_RECORD rrec; /* each decoded record goes in here */
   SSL3_RECORD wrec; /* goes out from here */

   /* storage for Alert/Handshake protocol data received but not
    * yet processed by ssl3_read_bytes: */
   unsigned char alert_fragment[2];
   unsigned int alert_fragment_len;
   unsigned char handshake_fragment[4];
   unsigned int handshake_fragment_len;

   /* partial write - check the numbers match */
   unsigned int wnum;   /* number of bytes sent so far */
   int wpend_tot;    /* number bytes written */
   int wpend_type;
   int wpend_ret;    /* number of bytes submitted */
   const unsigned char *wpend_buf;

   /* used during startup, digest all incoming/outgoing packets */
   EVP_MD_CTX finish_dgst1;
   EVP_MD_CTX finish_dgst2;

   /* this is set whenerver we see a change_cipher_spec message
    * come in when we are not looking for one */
   int change_cipher_spec;

   int warn_alert;
   int fatal_alert;
   /* we allow one fatal and one warning alert to be outstanding,
    * send close alert via the warning alert */
   int alert_dispatch;
   unsigned char send_alert[2];

   /* This flag is set when we should renegotiate ASAP, basically when
    * there is no more data in the read or write buffers */
   int renegotiate;
   int total_renegotiations;
   int num_renegotiations;

   int in_read_app_data;

   struct   {
      /* actually only needs to be 16+20 */
      unsigned char cert_verify_md[EVP_MAX_MD_SIZE*2];

      /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
      unsigned char finish_md[EVP_MAX_MD_SIZE*2];
      int finish_md_len;
      unsigned char peer_finish_md[EVP_MAX_MD_SIZE*2];
      int peer_finish_md_len;

      unsigned long message_size;
      int message_type;

      /* used to hold the new cipher we are going to use */
      SSL_CIPHER *new_cipher;
#ifndef OPENSSL_NO_DH
      DH *dh;
#endif

#ifndef OPENSSL_NO_ECDH
      EC_KEY *ecdh; /* holds short lived ECDH key */
#endif

      /* used when SSL_ST_FLUSH_DATA is entered */
      int next_state;

      int reuse_message;

      /* used for certificate requests */
      int cert_req;
      int ctype_num;
      char ctype[SSL3_CT_NUMBER];
      STACK_OF(X509_NAME) *ca_names;

      int use_rsa_tmp;

      int key_block_length;
      unsigned char *key_block;

      const EVP_CIPHER *new_sym_enc;
      const EVP_MD *new_hash;
#ifndef OPENSSL_NO_COMP
      const SSL_COMP *new_compression;
#else
      char *new_compression;
#endif
      int cert_request;
      } tmp;

   } SSL3_STATE;


/* SSLv3 */
/*client */
/* extra state */
#define SSL3_ST_CW_FLUSH      (0x100|SSL_ST_CONNECT)
/* write to server */
#define SSL3_ST_CW_CLNT_HELLO_A     (0x110|SSL_ST_CONNECT)
#define SSL3_ST_CW_CLNT_HELLO_B     (0x111|SSL_ST_CONNECT)
/* read from server */
#define SSL3_ST_CR_SRVR_HELLO_A     (0x120|SSL_ST_CONNECT)
#define SSL3_ST_CR_SRVR_HELLO_B     (0x121|SSL_ST_CONNECT)
#define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_A (0x126|SSL_ST_CONNECT)
#define DTLS1_ST_CR_HELLO_VERIFY_REQUEST_B (0x127|SSL_ST_CONNECT)
#define SSL3_ST_CR_CERT_A     (0x130|SSL_ST_CONNECT)
#define SSL3_ST_CR_CERT_B     (0x131|SSL_ST_CONNECT)
#define SSL3_ST_CR_KEY_EXCH_A    (0x140|SSL_ST_CONNECT)
#define SSL3_ST_CR_KEY_EXCH_B    (0x141|SSL_ST_CONNECT)
#define SSL3_ST_CR_CERT_REQ_A    (0x150|SSL_ST_CONNECT)
#define SSL3_ST_CR_CERT_REQ_B    (0x151|SSL_ST_CONNECT)
#define SSL3_ST_CR_SRVR_DONE_A      (0x160|SSL_ST_CONNECT)
#define SSL3_ST_CR_SRVR_DONE_B      (0x161|SSL_ST_CONNECT)
/* write to server */
#define SSL3_ST_CW_CERT_A     (0x170|SSL_ST_CONNECT)
#define SSL3_ST_CW_CERT_B     (0x171|SSL_ST_CONNECT)
#define SSL3_ST_CW_CERT_C     (0x172|SSL_ST_CONNECT)
#define SSL3_ST_CW_CERT_D     (0x173|SSL_ST_CONNECT)
#define SSL3_ST_CW_KEY_EXCH_A    (0x180|SSL_ST_CONNECT)
#define SSL3_ST_CW_KEY_EXCH_B    (0x181|SSL_ST_CONNECT)
#define SSL3_ST_CW_CERT_VRFY_A      (0x190|SSL_ST_CONNECT)
#define SSL3_ST_CW_CERT_VRFY_B      (0x191|SSL_ST_CONNECT)
#define SSL3_ST_CW_CHANGE_A      (0x1A0|SSL_ST_CONNECT)
#define SSL3_ST_CW_CHANGE_B      (0x1A1|SSL_ST_CONNECT)
#define SSL3_ST_CW_FINISHED_A    (0x1B0|SSL_ST_CONNECT)
#define SSL3_ST_CW_FINISHED_B    (0x1B1|SSL_ST_CONNECT)
/* read from server */
#define SSL3_ST_CR_CHANGE_A      (0x1C0|SSL_ST_CONNECT)
#define SSL3_ST_CR_CHANGE_B      (0x1C1|SSL_ST_CONNECT)
#define SSL3_ST_CR_FINISHED_A    (0x1D0|SSL_ST_CONNECT)
#define SSL3_ST_CR_FINISHED_B    (0x1D1|SSL_ST_CONNECT)

/* server */
/* extra state */
#define SSL3_ST_SW_FLUSH      (0x100|SSL_ST_ACCEPT)
/* read from client */
/* Do not change the number values, they do matter */
#define SSL3_ST_SR_CLNT_HELLO_A     (0x110|SSL_ST_ACCEPT)
#define SSL3_ST_SR_CLNT_HELLO_B     (0x111|SSL_ST_ACCEPT)
#define SSL3_ST_SR_CLNT_HELLO_C     (0x112|SSL_ST_ACCEPT)
/* write to client */
#define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_A (0x113|SSL_ST_ACCEPT)
#define DTLS1_ST_SW_HELLO_VERIFY_REQUEST_B (0x114|SSL_ST_ACCEPT)
#define SSL3_ST_SW_HELLO_REQ_A      (0x120|SSL_ST_ACCEPT)
#define SSL3_ST_SW_HELLO_REQ_B      (0x121|SSL_ST_ACCEPT)
#define SSL3_ST_SW_HELLO_REQ_C      (0x122|SSL_ST_ACCEPT)
#define SSL3_ST_SW_SRVR_HELLO_A     (0x130|SSL_ST_ACCEPT)
#define SSL3_ST_SW_SRVR_HELLO_B     (0x131|SSL_ST_ACCEPT)
#define SSL3_ST_SW_CERT_A     (0x140|SSL_ST_ACCEPT)
#define SSL3_ST_SW_CERT_B     (0x141|SSL_ST_ACCEPT)
#define SSL3_ST_SW_KEY_EXCH_A    (0x150|SSL_ST_ACCEPT)
#define SSL3_ST_SW_KEY_EXCH_B    (0x151|SSL_ST_ACCEPT)
#define SSL3_ST_SW_CERT_REQ_A    (0x160|SSL_ST_ACCEPT)
#define SSL3_ST_SW_CERT_REQ_B    (0x161|SSL_ST_ACCEPT)
#define SSL3_ST_SW_SRVR_DONE_A      (0x170|SSL_ST_ACCEPT)
#define SSL3_ST_SW_SRVR_DONE_B      (0x171|SSL_ST_ACCEPT)
/* read from client */
#define SSL3_ST_SR_CERT_A     (0x180|SSL_ST_ACCEPT)
#define SSL3_ST_SR_CERT_B     (0x181|SSL_ST_ACCEPT)
#define SSL3_ST_SR_KEY_EXCH_A    (0x190|SSL_ST_ACCEPT)
#define SSL3_ST_SR_KEY_EXCH_B    (0x191|SSL_ST_ACCEPT)
#define SSL3_ST_SR_CERT_VRFY_A      (0x1A0|SSL_ST_ACCEPT)
#define SSL3_ST_SR_CERT_VRFY_B      (0x1A1|SSL_ST_ACCEPT)
#define SSL3_ST_SR_CHANGE_A      (0x1B0|SSL_ST_ACCEPT)
#define SSL3_ST_SR_CHANGE_B      (0x1B1|SSL_ST_ACCEPT)
#define SSL3_ST_SR_FINISHED_A    (0x1C0|SSL_ST_ACCEPT)
#define SSL3_ST_SR_FINISHED_B    (0x1C1|SSL_ST_ACCEPT)
/* write to client */
#define SSL3_ST_SW_CHANGE_A      (0x1D0|SSL_ST_ACCEPT)
#define SSL3_ST_SW_CHANGE_B      (0x1D1|SSL_ST_ACCEPT)
#define SSL3_ST_SW_FINISHED_A    (0x1E0|SSL_ST_ACCEPT)
#define SSL3_ST_SW_FINISHED_B    (0x1E1|SSL_ST_ACCEPT)

#define SSL3_MT_HELLO_REQUEST       0
#define SSL3_MT_CLIENT_HELLO        1
#define SSL3_MT_SERVER_HELLO        2
#define SSL3_MT_CERTIFICATE         11
#define SSL3_MT_SERVER_KEY_EXCHANGE    12
#define SSL3_MT_CERTIFICATE_REQUEST    13
#define SSL3_MT_SERVER_DONE         14
#define SSL3_MT_CERTIFICATE_VERIFY     15
#define SSL3_MT_CLIENT_KEY_EXCHANGE    16
#define SSL3_MT_FINISHED         20
#define DTLS1_MT_HELLO_VERIFY_REQUEST    3


#define SSL3_MT_CCS           1

/* These are used when changing over to a new cipher */
#define SSL3_CC_READ    0x01
#define SSL3_CC_WRITE      0x02
#define SSL3_CC_CLIENT     0x10
#define SSL3_CC_SERVER     0x20
#define SSL3_CHANGE_CIPHER_CLIENT_WRITE   (SSL3_CC_CLIENT|SSL3_CC_WRITE)
#define SSL3_CHANGE_CIPHER_SERVER_READ (SSL3_CC_SERVER|SSL3_CC_READ)
#define SSL3_CHANGE_CIPHER_CLIENT_READ (SSL3_CC_CLIENT|SSL3_CC_READ)
#define SSL3_CHANGE_CIPHER_SERVER_WRITE   (SSL3_CC_SERVER|SSL3_CC_WRITE)

#ifdef  __cplusplus
}
#endif
#endif