src/libdigidoc/openssl/include/openssl/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

/* Signalling cipher suite value: from draft-ietf-tls-renegotiation-03.txt */
#define SSL3_CK_SCSV                            0x030000FF

#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;

        /* Connection binding to prevent renegotiation attacks */
        unsigned char previous_client_finished[EVP_MAX_MD_SIZE];
        unsigned char previous_client_finished_len;
        unsigned char previous_server_finished[EVP_MAX_MD_SIZE];
        unsigned char previous_server_finished_len;
        int send_connection_binding; /* TODOEKR */
        } 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)
#define SSL3_ST_CR_SESSION_TICKET_A     (0x1E0|SSL_ST_CONNECT)
#define SSL3_ST_CR_SESSION_TICKET_B     (0x1E1|SSL_ST_CONNECT)
#define SSL3_ST_CR_CERT_STATUS_A        (0x1F0|SSL_ST_CONNECT)
#define SSL3_ST_CR_CERT_STATUS_B        (0x1F1|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_ST_SW_SESSION_TICKET_A     (0x1F0|SSL_ST_ACCEPT)
#define SSL3_ST_SW_SESSION_TICKET_B     (0x1F1|SSL_ST_ACCEPT)
#define SSL3_ST_SW_CERT_STATUS_A        (0x200|SSL_ST_ACCEPT)
#define SSL3_ST_SW_CERT_STATUS_B        (0x201|SSL_ST_ACCEPT)

#define SSL3_MT_HELLO_REQUEST                   0
#define SSL3_MT_CLIENT_HELLO                    1
#define SSL3_MT_SERVER_HELLO                    2
#define SSL3_MT_NEWSESSION_TICKET               4
#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 SSL3_MT_CERTIFICATE_STATUS              22
#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