Upgrade chrome's OpenSSL to same version Android ships with.

openssl/ssl/ssl_locl.h.orig

+/* ssl/ssl_locl.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) 1998-2007 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.
+ */
+/* ====================================================================
+ * Copyright 2005 Nokia. All rights reserved.
+ *
+ * The portions of the attached software ("Contribution") is developed by
+ * Nokia Corporation and is licensed pursuant to the OpenSSL open source
+ * license.
+ *
+ * The Contribution, originally written by Mika Kousa and Pasi Eronen of
+ * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
+ * support (see RFC 4279) to OpenSSL.
+ *
+ * No patent licenses or other rights except those expressly stated in
+ * the OpenSSL open source license shall be deemed granted or received
+ * expressly, by implication, estoppel, or otherwise.
+ *
+ * No assurances are provided by Nokia that the Contribution does not
+ * infringe the patent or other intellectual property rights of any third
+ * party or that the license provides you with all the necessary rights
+ * to make use of the Contribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
+ * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
+ * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
+ * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
+ * OTHERWISE.
+ */
+
+#ifndef HEADER_SSL_LOCL_H
+#define HEADER_SSL_LOCL_H
+#include <stdlib.h>
+#include <time.h>
+#include <string.h>
+#include <errno.h>
+
+#include "e_os.h"
+
+#include <openssl/buffer.h>
+#ifndef OPENSSL_NO_COMP
+#include <openssl/comp.h>
+#endif
+#include <openssl/bio.h>
+#include <openssl/stack.h>
+#ifndef OPENSSL_NO_RSA
+#include <openssl/rsa.h>
+#endif
+#ifndef OPENSSL_NO_DSA
+#include <openssl/dsa.h>
+#endif
+#include <openssl/err.h>
+#include <openssl/ssl.h>
+#include <openssl/symhacks.h>
+
+#ifdef OPENSSL_BUILD_SHLIBSSL
+# undef OPENSSL_EXTERN
+# define OPENSSL_EXTERN OPENSSL_EXPORT
+#endif
+
+#define PKCS1_CHECK
+
+#define c2l(c,l)        (l = ((unsigned long)(*((c)++)))     , \
+                         l|=(((unsigned long)(*((c)++)))<< 8), \
+                         l|=(((unsigned long)(*((c)++)))<<16), \
+                         l|=(((unsigned long)(*((c)++)))<<24))
+
+/* NOTE - c is not incremented as per c2l */
+#define c2ln(c,l1,l2,n) { \
+                        c+=n; \
+                        l1=l2=0; \
+                        switch (n) { \
+                        case 8: l2 =((unsigned long)(*(--(c))))<<24; \
+                        case 7: l2|=((unsigned long)(*(--(c))))<<16; \
+                        case 6: l2|=((unsigned long)(*(--(c))))<< 8; \
+                        case 5: l2|=((unsigned long)(*(--(c))));     \
+                        case 4: l1 =((unsigned long)(*(--(c))))<<24; \
+                        case 3: l1|=((unsigned long)(*(--(c))))<<16; \
+                        case 2: l1|=((unsigned long)(*(--(c))))<< 8; \
+                        case 1: l1|=((unsigned long)(*(--(c))));     \
+                                } \
+                        }
+
+#define l2c(l,c)        (*((c)++)=(unsigned char)(((l)    )&0xff), \
+                         *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
+                         *((c)++)=(unsigned char)(((l)>>16)&0xff), \
+                         *((c)++)=(unsigned char)(((l)>>24)&0xff))
+
+#define n2l(c,l)        (l =((unsigned long)(*((c)++)))<<24, \
+                         l|=((unsigned long)(*((c)++)))<<16, \
+                         l|=((unsigned long)(*((c)++)))<< 8, \
+                         l|=((unsigned long)(*((c)++))))
+
+#define l2n(l,c)        (*((c)++)=(unsigned char)(((l)>>24)&0xff), \
+                         *((c)++)=(unsigned char)(((l)>>16)&0xff), \
+                         *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
+                         *((c)++)=(unsigned char)(((l)    )&0xff))
+
+#define l2n6(l,c)       (*((c)++)=(unsigned char)(((l)>>40)&0xff), \
+                         *((c)++)=(unsigned char)(((l)>>32)&0xff), \
+                         *((c)++)=(unsigned char)(((l)>>24)&0xff), \
+                         *((c)++)=(unsigned char)(((l)>>16)&0xff), \
+                         *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
+                         *((c)++)=(unsigned char)(((l)    )&0xff))
+
+#define n2l6(c,l)       (l =((BN_ULLONG)(*((c)++)))<<40, \
+                         l|=((BN_ULLONG)(*((c)++)))<<32, \
+                         l|=((BN_ULLONG)(*((c)++)))<<24, \
+                         l|=((BN_ULLONG)(*((c)++)))<<16, \
+                         l|=((BN_ULLONG)(*((c)++)))<< 8, \
+                         l|=((BN_ULLONG)(*((c)++))))
+
+/* NOTE - c is not incremented as per l2c */
+#define l2cn(l1,l2,c,n) { \
+                        c+=n; \
+                        switch (n) { \
+                        case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
+                        case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
+                        case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
+                        case 5: *(--(c))=(unsigned char)(((l2)    )&0xff); \
+                        case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
+                        case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
+                        case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
+                        case 1: *(--(c))=(unsigned char)(((l1)    )&0xff); \
+                                } \
+                        }
+
+#define n2s(c,s)        ((s=(((unsigned int)(c[0]))<< 8)| \
+                            (((unsigned int)(c[1]))    )),c+=2)
+#define s2n(s,c)        ((c[0]=(unsigned char)(((s)>> 8)&0xff), \
+                          c[1]=(unsigned char)(((s)    )&0xff)),c+=2)
+
+#define n2l3(c,l)       ((l =(((unsigned long)(c[0]))<<16)| \
+                             (((unsigned long)(c[1]))<< 8)| \
+                             (((unsigned long)(c[2]))    )),c+=3)
+
+#define l2n3(l,c)       ((c[0]=(unsigned char)(((l)>>16)&0xff), \
+                          c[1]=(unsigned char)(((l)>> 8)&0xff), \
+                          c[2]=(unsigned char)(((l)    )&0xff)),c+=3)
+
+/* LOCAL STUFF */
+
+#define SSL_DECRYPT     0
+#define SSL_ENCRYPT     1
+
+#define TWO_BYTE_BIT    0x80
+#define SEC_ESC_BIT     0x40
+#define TWO_BYTE_MASK   0x7fff
+#define THREE_BYTE_MASK 0x3fff
+
+#define INC32(a)        ((a)=((a)+1)&0xffffffffL)
+#define DEC32(a)        ((a)=((a)-1)&0xffffffffL)
+#define MAX_MAC_SIZE    20 /* up from 16 for SSLv3 */
+
+/*
+ * Define the Bitmasks for SSL_CIPHER.algorithms.
+ * This bits are used packed as dense as possible. If new methods/ciphers
+ * etc will be added, the bits a likely to change, so this information
+ * is for internal library use only, even though SSL_CIPHER.algorithms
+ * can be publicly accessed.
+ * Use the according functions for cipher management instead.
+ *
+ * The bit mask handling in the selection and sorting scheme in
+ * ssl_create_cipher_list() has only limited capabilities, reflecting
+ * that the different entities within are mutually exclusive:
+ * ONLY ONE BIT PER MASK CAN BE SET AT A TIME.
+ */
+
+/* Bits for algorithm_mkey (key exchange algorithm) */
+#define SSL_kRSA                0x00000001L /* RSA key exchange */
+#define SSL_kDHr                0x00000002L /* DH cert, RSA CA cert */ /* no such ciphersuites supported! */
+#define SSL_kDHd                0x00000004L /* DH cert, DSA CA cert */ /* no such ciphersuite supported! */
+#define SSL_kEDH                0x00000008L /* tmp DH key no DH cert */
+#define SSL_kKRB5               0x00000010L /* Kerberos5 key exchange */
+#define SSL_kECDHr              0x00000020L /* ECDH cert, RSA CA cert */
+#define SSL_kECDHe              0x00000040L /* ECDH cert, ECDSA CA cert */
+#define SSL_kEECDH              0x00000080L /* ephemeral ECDH */
+#define SSL_kPSK                0x00000100L /* PSK */
+#define SSL_kGOST       0x00000200L /* GOST key exchange */
+
+/* Bits for algorithm_auth (server authentication) */
+#define SSL_aRSA                0x00000001L /* RSA auth */
+#define SSL_aDSS                0x00000002L /* DSS auth */
+#define SSL_aNULL               0x00000004L /* no auth (i.e. use ADH or AECDH) */
+#define SSL_aDH                 0x00000008L /* Fixed DH auth (kDHd or kDHr) */ /* no such ciphersuites supported! */
+#define SSL_aECDH               0x00000010L /* Fixed ECDH auth (kECDHe or kECDHr) */
+#define SSL_aKRB5               0x00000020L /* KRB5 auth */
+#define SSL_aECDSA              0x00000040L /* ECDSA auth*/
+#define SSL_aPSK                0x00000080L /* PSK auth */
+#define SSL_aGOST94                             0x00000100L /* GOST R 34.10-94 signature auth */
+#define SSL_aGOST01                     0x00000200L /* GOST R 34.10-2001 signature auth */
+
+
+/* Bits for algorithm_enc (symmetric encryption) */
+#define SSL_DES                 0x00000001L
+#define SSL_3DES                0x00000002L
+#define SSL_RC4                 0x00000004L
+#define SSL_RC2                 0x00000008L
+#define SSL_IDEA                0x00000010L
+#define SSL_eNULL               0x00000020L
+#define SSL_AES128              0x00000040L
+#define SSL_AES256              0x00000080L
+#define SSL_CAMELLIA128         0x00000100L
+#define SSL_CAMELLIA256         0x00000200L
+#define SSL_eGOST2814789CNT     0x00000400L
+#define SSL_SEED                0x00000800L
+
+#define SSL_AES                 (SSL_AES128|SSL_AES256)
+#define SSL_CAMELLIA            (SSL_CAMELLIA128|SSL_CAMELLIA256)
+
+
+/* Bits for algorithm_mac (symmetric authentication) */
+#define SSL_MD5                 0x00000001L
+#define SSL_SHA1                0x00000002L
+#define SSL_GOST94      0x00000004L
+#define SSL_GOST89MAC   0x00000008L
+
+/* Bits for algorithm_ssl (protocol version) */
+#define SSL_SSLV2               0x00000001L
+#define SSL_SSLV3               0x00000002L
+#define SSL_TLSV1               SSL_SSLV3       /* for now */
+
+
+/* Bits for algorithm2 (handshake digests and other extra flags) */
+
+#define SSL_HANDSHAKE_MAC_MD5 0x10
+#define SSL_HANDSHAKE_MAC_SHA 0x20
+#define SSL_HANDSHAKE_MAC_GOST94 0x40
+#define SSL_HANDSHAKE_MAC_DEFAULT (SSL_HANDSHAKE_MAC_MD5 | SSL_HANDSHAKE_MAC_SHA)
+
+/* When adding new digest in the ssl_ciph.c and increment SSM_MD_NUM_IDX
+ * make sure to update this constant too */
+#define SSL_MAX_DIGEST 4
+
+#define TLS1_PRF_DGST_SHIFT 8
+#define TLS1_PRF_MD5 (SSL_HANDSHAKE_MAC_MD5 << TLS1_PRF_DGST_SHIFT)
+#define TLS1_PRF_SHA1 (SSL_HANDSHAKE_MAC_SHA << TLS1_PRF_DGST_SHIFT)
+#define TLS1_PRF_GOST94 (SSL_HANDSHAKE_MAC_GOST94 << TLS1_PRF_DGST_SHIFT)
+#define TLS1_PRF (TLS1_PRF_MD5 | TLS1_PRF_SHA1)
+
+/* Stream MAC for GOST ciphersuites from cryptopro draft
+ * (currently this also goes into algorithm2) */
+#define TLS1_STREAM_MAC 0x04
+
+
+
+/*
+ * Export and cipher strength information. For each cipher we have to decide
+ * whether it is exportable or not. This information is likely to change
+ * over time, since the export control rules are no static technical issue.
+ *
+ * Independent of the export flag the cipher strength is sorted into classes.
+ * SSL_EXP40 was denoting the 40bit US export limit of past times, which now
+ * is at 56bit (SSL_EXP56). If the exportable cipher class is going to change
+ * again (eg. to 64bit) the use of "SSL_EXP*" becomes blurred even more,
+ * since SSL_EXP64 could be similar to SSL_LOW.
+ * For this reason SSL_MICRO and SSL_MINI macros are included to widen the
+ * namespace of SSL_LOW-SSL_HIGH to lower values. As development of speed
+ * and ciphers goes, another extension to SSL_SUPER and/or SSL_ULTRA would
+ * be possible.
+ */
+#define SSL_EXP_MASK            0x00000003L
+#define SSL_STRONG_MASK         0x000001fcL
+
+#define SSL_NOT_EXP             0x00000001L
+#define SSL_EXPORT              0x00000002L
+
+#define SSL_STRONG_NONE         0x00000004L
+#define SSL_EXP40               0x00000008L
+#define SSL_MICRO               (SSL_EXP40)
+#define SSL_EXP56               0x00000010L
+#define SSL_MINI                (SSL_EXP56)
+#define SSL_LOW                 0x00000020L
+#define SSL_MEDIUM              0x00000040L
+#define SSL_HIGH                0x00000080L
+#define SSL_FIPS                0x00000100L
+
+/* we have used 000001ff - 23 bits left to go */
+
+/*
+ * Macros to check the export status and cipher strength for export ciphers.
+ * Even though the macros for EXPORT and EXPORT40/56 have similar names,
+ * their meaning is different:
+ * *_EXPORT macros check the 'exportable' status.
+ * *_EXPORT40/56 macros are used to check whether a certain cipher strength
+ *          is given.
+ * Since the SSL_IS_EXPORT* and SSL_EXPORT* macros depend on the correct
+ * algorithm structure element to be passed (algorithms, algo_strength) and no
+ * typechecking can be done as they are all of type unsigned long, their
+ * direct usage is discouraged.
+ * Use the SSL_C_* macros instead.
+ */
+#define SSL_IS_EXPORT(a)        ((a)&SSL_EXPORT)
+#define SSL_IS_EXPORT56(a)      ((a)&SSL_EXP56)
+#define SSL_IS_EXPORT40(a)      ((a)&SSL_EXP40)
+#define SSL_C_IS_EXPORT(c)      SSL_IS_EXPORT((c)->algo_strength)
+#define SSL_C_IS_EXPORT56(c)    SSL_IS_EXPORT56((c)->algo_strength)
+#define SSL_C_IS_EXPORT40(c)    SSL_IS_EXPORT40((c)->algo_strength)
+
+#define SSL_EXPORT_KEYLENGTH(a,s)       (SSL_IS_EXPORT40(s) ? 5 : \
+                                 (a) == SSL_DES ? 8 : 7)
+#define SSL_EXPORT_PKEYLENGTH(a) (SSL_IS_EXPORT40(a) ? 512 : 1024)
+#define SSL_C_EXPORT_KEYLENGTH(c)       SSL_EXPORT_KEYLENGTH((c)->algorithm_enc, \
+                                (c)->algo_strength)
+#define SSL_C_EXPORT_PKEYLENGTH(c)      SSL_EXPORT_PKEYLENGTH((c)->algo_strength)
+
+
+
+
+/* Mostly for SSLv3 */
+#define SSL_PKEY_RSA_ENC        0
+#define SSL_PKEY_RSA_SIGN       1
+#define SSL_PKEY_DSA_SIGN       2
+#define SSL_PKEY_DH_RSA         3
+#define SSL_PKEY_DH_DSA         4
+#define SSL_PKEY_ECC            5
+#define SSL_PKEY_GOST94         6
+#define SSL_PKEY_GOST01         7
+#define SSL_PKEY_NUM            8
+
+/* SSL_kRSA <- RSA_ENC | (RSA_TMP & RSA_SIGN) |
+ *          <- (EXPORT & (RSA_ENC | RSA_TMP) & RSA_SIGN)
+ * SSL_kDH  <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
+ * SSL_kEDH <- RSA_ENC | RSA_SIGN | DSA_SIGN
+ * SSL_aRSA <- RSA_ENC | RSA_SIGN
+ * SSL_aDSS <- DSA_SIGN
+ */
+
+/*
+#define CERT_INVALID            0
+#define CERT_PUBLIC_KEY         1
+#define CERT_PRIVATE_KEY        2
+*/
+
+#ifndef OPENSSL_NO_EC
+/* From ECC-TLS draft, used in encoding the curve type in 
+ * ECParameters
+ */
+#define EXPLICIT_PRIME_CURVE_TYPE  1   
+#define EXPLICIT_CHAR2_CURVE_TYPE  2
+#define NAMED_CURVE_TYPE           3
+#endif  /* OPENSSL_NO_EC */
+
+typedef struct cert_pkey_st
+        {
+        X509 *x509;
+        STACK_OF(X509) *cert_chain;
+        EVP_PKEY *privatekey;
+        } CERT_PKEY;
+
+typedef struct cert_st
+        {
+        /* Current active set */
+        CERT_PKEY *key; /* ALWAYS points to an element of the pkeys array
+                         * Probably it would make more sense to store
+                         * an index, not a pointer. */
+ 
+        /* The following masks are for the key and auth
+         * algorithms that are supported by the certs below */
+        int valid;
+        unsigned long mask_k;
+        unsigned long mask_a;
+        unsigned long export_mask_k;
+        unsigned long export_mask_a;
+#ifndef OPENSSL_NO_RSA
+        RSA *rsa_tmp;
+        RSA *(*rsa_tmp_cb)(SSL *ssl,int is_export,int keysize);
+#endif
+#ifndef OPENSSL_NO_DH
+        DH *dh_tmp;
+        DH *(*dh_tmp_cb)(SSL *ssl,int is_export,int keysize);
+#endif
+#ifndef OPENSSL_NO_ECDH
+        EC_KEY *ecdh_tmp;
+        /* Callback for generating ephemeral ECDH keys */
+        EC_KEY *(*ecdh_tmp_cb)(SSL *ssl,int is_export,int keysize);
+#endif
+
+        CERT_PKEY pkeys[SSL_PKEY_NUM];
+
+        int references; /* >1 only if SSL_copy_session_id is used */
+        } CERT;
+
+
+typedef struct sess_cert_st
+        {
+        STACK_OF(X509) *cert_chain; /* as received from peer (not for SSL2) */
+
+        /* The 'peer_...' members are used only by clients. */
+        int peer_cert_type;
+
+        CERT_PKEY *peer_key; /* points to an element of peer_pkeys (never NULL!) */
+        CERT_PKEY peer_pkeys[SSL_PKEY_NUM];
+        /* Obviously we don't have the private keys of these,
+         * so maybe we shouldn't even use the CERT_PKEY type here. */
+
+#ifndef OPENSSL_NO_RSA
+        RSA *peer_rsa_tmp; /* not used for SSL 2 */
+#endif
+#ifndef OPENSSL_NO_DH
+        DH *peer_dh_tmp; /* not used for SSL 2 */
+#endif
+#ifndef OPENSSL_NO_ECDH
+        EC_KEY *peer_ecdh_tmp;
+#endif
+
+        int references; /* actually always 1 at the moment */
+        } SESS_CERT;
+
+
+/*#define MAC_DEBUG     */
+
+/*#define ERR_DEBUG     */
+/*#define ABORT_DEBUG   */
+/*#define PKT_DEBUG 1   */
+/*#define DES_DEBUG     */
+/*#define DES_OFB_DEBUG */
+/*#define SSL_DEBUG     */
+/*#define RSA_DEBUG     */ 
+/*#define IDEA_DEBUG    */ 
+
+#define FP_ICC  (int (*)(const void *,const void *))
+#define ssl_put_cipher_by_char(ssl,ciph,ptr) \
+                ((ssl)->method->put_cipher_by_char((ciph),(ptr)))
+#define ssl_get_cipher_by_char(ssl,ptr) \
+                ((ssl)->method->get_cipher_by_char(ptr))
+
+/* This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff
+ * It is a bit of a mess of functions, but hell, think of it as
+ * an opaque structure :-) */
+typedef struct ssl3_enc_method
+        {
+        int (*enc)(SSL *, int);
+        int (*mac)(SSL *, unsigned char *, int);
+        int (*setup_key_block)(SSL *);
+        int (*generate_master_secret)(SSL *, unsigned char *, unsigned char *, int);
+        int (*change_cipher_state)(SSL *, int);
+        int (*final_finish_mac)(SSL *,  const char *, int, unsigned char *);
+        int finish_mac_length;
+        int (*cert_verify_mac)(SSL *, int, unsigned char *);
+        const char *client_finished_label;
+        int client_finished_label_len;
+        const char *server_finished_label;
+        int server_finished_label_len;
+        int (*alert_value)(int);
+        } SSL3_ENC_METHOD;
+
+#ifndef OPENSSL_NO_COMP
+/* Used for holding the relevant compression methods loaded into SSL_CTX */
+typedef struct ssl3_comp_st
+        {
+        int comp_id;    /* The identifier byte for this compression type */
+        char *name;     /* Text name used for the compression type */
+        COMP_METHOD *method; /* The method :-) */
+        } SSL3_COMP;
+#endif
+
+#ifndef OPENSSL_NO_BUF_FREELISTS
+typedef struct ssl3_buf_freelist_st
+        {
+        size_t chunklen;
+        unsigned int len;
+        struct ssl3_buf_freelist_entry_st *head;
+        } SSL3_BUF_FREELIST;
+
+typedef struct ssl3_buf_freelist_entry_st
+        {
+        struct ssl3_buf_freelist_entry_st *next;
+        } SSL3_BUF_FREELIST_ENTRY;
+#endif
+
+extern SSL3_ENC_METHOD ssl3_undef_enc_method;
+OPENSSL_EXTERN const SSL_CIPHER ssl2_ciphers[];
+OPENSSL_EXTERN SSL_CIPHER ssl3_ciphers[];
+
+
+SSL_METHOD *ssl_bad_method(int ver);
+
+extern SSL3_ENC_METHOD TLSv1_enc_data;
+extern SSL3_ENC_METHOD SSLv3_enc_data;
+extern SSL3_ENC_METHOD DTLSv1_enc_data;
+
+#define IMPLEMENT_tls1_meth_func(func_name, s_accept, s_connect, s_get_meth) \
+const SSL_METHOD *func_name(void)  \
+        { \
+        static const SSL_METHOD func_name##_data= { \
+                TLS1_VERSION, \
+                tls1_new, \
+                tls1_clear, \
+                tls1_free, \
+                s_accept, \
+                s_connect, \
+                ssl3_read, \
+                ssl3_peek, \
+                ssl3_write, \
+                ssl3_shutdown, \
+                ssl3_renegotiate, \
+                ssl3_renegotiate_check, \
+                ssl3_get_message, \
+                ssl3_read_bytes, \
+                ssl3_write_bytes, \
+                ssl3_dispatch_alert, \
+                ssl3_ctrl, \
+                ssl3_ctx_ctrl, \
+                ssl3_get_cipher_by_char, \
+                ssl3_put_cipher_by_char, \
+                ssl3_pending, \
+                ssl3_num_ciphers, \
+                ssl3_get_cipher, \
+                s_get_meth, \
+                tls1_default_timeout, \
+                &TLSv1_enc_data, \
+                ssl_undefined_void_function, \
+                ssl3_callback_ctrl, \
+                ssl3_ctx_callback_ctrl, \
+        }; \
+        return &func_name##_data; \
+        }
+
+#define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect, s_get_meth) \
+const SSL_METHOD *func_name(void)  \
+        { \
+        static const SSL_METHOD func_name##_data= { \
+                SSL3_VERSION, \
+                ssl3_new, \
+                ssl3_clear, \
+                ssl3_free, \
+                s_accept, \
+                s_connect, \
+                ssl3_read, \
+                ssl3_peek, \
+                ssl3_write, \
+                ssl3_shutdown, \
+                ssl3_renegotiate, \
+                ssl3_renegotiate_check, \
+                ssl3_get_message, \
+                ssl3_read_bytes, \
+                ssl3_write_bytes, \
+                ssl3_dispatch_alert, \
+                ssl3_ctrl, \
+                ssl3_ctx_ctrl, \
+                ssl3_get_cipher_by_char, \
+                ssl3_put_cipher_by_char, \
+                ssl3_pending, \
+                ssl3_num_ciphers, \
+                ssl3_get_cipher, \
+                s_get_meth, \
+                ssl3_default_timeout, \
+                &SSLv3_enc_data, \
+                ssl_undefined_void_function, \
+                ssl3_callback_ctrl, \
+                ssl3_ctx_callback_ctrl, \
+        }; \
+        return &func_name##_data; \
+        }
+
+#define IMPLEMENT_ssl23_meth_func(func_name, s_accept, s_connect, s_get_meth) \
+const SSL_METHOD *func_name(void)  \
+        { \
+        static const SSL_METHOD func_name##_data= { \
+        TLS1_VERSION, \
+        tls1_new, \
+        tls1_clear, \
+        tls1_free, \
+        s_accept, \
+        s_connect, \
+        ssl23_read, \
+        ssl23_peek, \
+        ssl23_write, \
+        ssl_undefined_function, \
+        ssl_undefined_function, \
+        ssl_ok, \
+        ssl3_get_message, \
+        ssl3_read_bytes, \
+        ssl3_write_bytes, \
+        ssl3_dispatch_alert, \
+        ssl3_ctrl, \
+        ssl3_ctx_ctrl, \
+        ssl23_get_cipher_by_char, \
+        ssl23_put_cipher_by_char, \
+        ssl_undefined_const_function, \
+        ssl23_num_ciphers, \
+        ssl23_get_cipher, \
+        s_get_meth, \
+        ssl23_default_timeout, \
+        &ssl3_undef_enc_method, \
+        ssl_undefined_void_function, \
+        ssl3_callback_ctrl, \
+        ssl3_ctx_callback_ctrl, \
+        }; \
+        return &func_name##_data; \
+        }
+
+#define IMPLEMENT_ssl2_meth_func(func_name, s_accept, s_connect, s_get_meth) \
+const SSL_METHOD *func_name(void)  \
+        { \
+        static const SSL_METHOD func_name##_data= { \
+                SSL2_VERSION, \
+                ssl2_new,       /* local */ \
+                ssl2_clear,     /* local */ \
+                ssl2_free,      /* local */ \
+                s_accept, \
+                s_connect, \
+                ssl2_read, \
+                ssl2_peek, \
+                ssl2_write, \
+                ssl2_shutdown, \
+                ssl_ok, /* NULL - renegotiate */ \
+                ssl_ok, /* NULL - check renegotiate */ \
+                NULL, /* NULL - ssl_get_message */ \
+                NULL, /* NULL - ssl_get_record */ \
+                NULL, /* NULL - ssl_write_bytes */ \
+                NULL, /* NULL - dispatch_alert */ \
+                ssl2_ctrl,      /* local */ \
+                ssl2_ctx_ctrl,  /* local */ \
+                ssl2_get_cipher_by_char, \
+                ssl2_put_cipher_by_char, \
+                ssl2_pending, \
+                ssl2_num_ciphers, \
+                ssl2_get_cipher, \
+                s_get_meth, \
+                ssl2_default_timeout, \
+                &ssl3_undef_enc_method, \
+                ssl_undefined_void_function, \
+                ssl2_callback_ctrl,     /* local */ \
+                ssl2_ctx_callback_ctrl, /* local */ \
+        }; \
+        return &func_name##_data; \
+        }
+
+#define IMPLEMENT_dtls1_meth_func(func_name, s_accept, s_connect, s_get_meth) \
+const SSL_METHOD *func_name(void)  \
+        { \
+        static const SSL_METHOD func_name##_data= { \
+                DTLS1_VERSION, \
+                dtls1_new, \
+                dtls1_clear, \
+                dtls1_free, \
+                s_accept, \
+                s_connect, \
+                ssl3_read, \
+                ssl3_peek, \
+                ssl3_write, \
+                ssl3_shutdown, \
+                ssl3_renegotiate, \
+                ssl3_renegotiate_check, \
+                dtls1_get_message, \
+                dtls1_read_bytes, \
+                dtls1_write_app_data_bytes, \
+                dtls1_dispatch_alert, \
+                dtls1_ctrl, \
+                ssl3_ctx_ctrl, \
+                ssl3_get_cipher_by_char, \
+                ssl3_put_cipher_by_char, \
+                ssl3_pending, \
+                ssl3_num_ciphers, \
+                dtls1_get_cipher, \
+                s_get_meth, \
+                dtls1_default_timeout, \
+                &DTLSv1_enc_data, \
+                ssl_undefined_void_function, \
+                ssl3_callback_ctrl, \
+                ssl3_ctx_callback_ctrl, \
+        }; \
+        return &func_name##_data; \
+        }
+
+void ssl_clear_cipher_ctx(SSL *s);
+int ssl_clear_bad_session(SSL *s);
+CERT *ssl_cert_new(void);
+CERT *ssl_cert_dup(CERT *cert);
+int ssl_cert_inst(CERT **o);
+void ssl_cert_free(CERT *c);
+SESS_CERT *ssl_sess_cert_new(void);
+void ssl_sess_cert_free(SESS_CERT *sc);
+int ssl_set_peer_cert_type(SESS_CERT *c, int type);
+int ssl_get_new_session(SSL *s, int session);
+int ssl_get_prev_session(SSL *s, unsigned char *session,int len, const unsigned char *limit);
+int ssl_cipher_id_cmp(const SSL_CIPHER *a,const SSL_CIPHER *b);
+DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER,
+                                  ssl_cipher_id);
+int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
+                        const SSL_CIPHER * const *bp);
+STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
+                                               STACK_OF(SSL_CIPHER) **skp);
+int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
+                             int (*put_cb)(const SSL_CIPHER *, unsigned char *));
+STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth,
+                                             STACK_OF(SSL_CIPHER) **pref,
+                                             STACK_OF(SSL_CIPHER) **sorted,
+                                             const char *rule_str);
+void ssl_update_cache(SSL *s, int mode);
+int ssl_cipher_get_evp(const SSL_SESSION *s,const EVP_CIPHER **enc,
+                       const EVP_MD **md,int *mac_pkey_type,int *mac_secret_size, SSL_COMP **comp);
+int ssl_get_handshake_digest(int i,long *mask,const EVP_MD **md);                          
+int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk);
+int ssl_undefined_function(SSL *s);
+int ssl_undefined_void_function(void);
+int ssl_undefined_const_function(const SSL *s);
+X509 *ssl_get_server_send_cert(SSL *);
+EVP_PKEY *ssl_get_sign_pkey(SSL *,const SSL_CIPHER *);
+int ssl_cert_type(X509 *x,EVP_PKEY *pkey);
+void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher);
+STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
+int ssl_verify_alarm_type(long type);
+void ssl_load_ciphers(void);
+
+int ssl2_enc_init(SSL *s, int client);
+int ssl2_generate_key_material(SSL *s);
+void ssl2_enc(SSL *s,int send_data);
+void ssl2_mac(SSL *s,unsigned char *mac,int send_data);
+const SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p);
+int ssl2_put_cipher_by_char(const SSL_CIPHER *c,unsigned char *p);
+int ssl2_part_read(SSL *s, unsigned long f, int i);
+int ssl2_do_write(SSL *s);
+int ssl2_set_certificate(SSL *s, int type, int len, const unsigned char *data);
+void ssl2_return_error(SSL *s,int reason);
+void ssl2_write_error(SSL *s);
+int ssl2_num_ciphers(void);
+const SSL_CIPHER *ssl2_get_cipher(unsigned int u);
+int     ssl2_new(SSL *s);
+void    ssl2_free(SSL *s);
+int     ssl2_accept(SSL *s);
+int     ssl2_connect(SSL *s);
+int     ssl2_read(SSL *s, void *buf, int len);
+int     ssl2_peek(SSL *s, void *buf, int len);
+int     ssl2_write(SSL *s, const void *buf, int len);
+int     ssl2_shutdown(SSL *s);
+void    ssl2_clear(SSL *s);
+long    ssl2_ctrl(SSL *s,int cmd, long larg, void *parg);
+long    ssl2_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg);
+long    ssl2_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
+long    ssl2_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)(void));
+int     ssl2_pending(const SSL *s);
+long    ssl2_default_timeout(void );
+
+const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
+int ssl3_put_cipher_by_char(const SSL_CIPHER *c,unsigned char *p);
+void ssl3_init_finished_mac(SSL *s);
+int ssl3_send_server_certificate(SSL *s);
+int ssl3_send_newsession_ticket(SSL *s);
+int ssl3_send_cert_status(SSL *s);
+int ssl3_get_finished(SSL *s,int state_a,int state_b);
+int ssl3_setup_key_block(SSL *s);
+int ssl3_send_change_cipher_spec(SSL *s,int state_a,int state_b);
+int ssl3_change_cipher_state(SSL *s,int which);
+void ssl3_cleanup_key_block(SSL *s);
+int ssl3_do_write(SSL *s,int type);
+int ssl3_send_alert(SSL *s,int level, int desc);
+int ssl3_generate_master_secret(SSL *s, unsigned char *out,
+        unsigned char *p, int len);
+int ssl3_get_req_cert_type(SSL *s,unsigned char *p);
+long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
+int ssl3_send_finished(SSL *s, int a, int b, const char *sender,int slen);
+int ssl3_num_ciphers(void);
+const SSL_CIPHER *ssl3_get_cipher(unsigned int u);
+int ssl3_renegotiate(SSL *ssl); 
+int ssl3_renegotiate_check(SSL *ssl); 
+int ssl3_dispatch_alert(SSL *s);
+int ssl3_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
+int ssl3_write_bytes(SSL *s, int type, const void *buf, int len);
+int ssl3_final_finish_mac(SSL *s, const char *sender, int slen,unsigned char *p);
+int ssl3_cert_verify_mac(SSL *s, int md_nid, unsigned char *p);
+void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len);
+int ssl3_enc(SSL *s, int send_data);
+int n_ssl3_mac(SSL *ssl, unsigned char *md, int send_data);
+void ssl3_free_digest_list(SSL *s);
+unsigned long ssl3_output_cert_chain(SSL *s, X509 *x);
+SSL_CIPHER *ssl3_choose_cipher(SSL *ssl,STACK_OF(SSL_CIPHER) *clnt,
+                               STACK_OF(SSL_CIPHER) *srvr);
+int     ssl3_setup_buffers(SSL *s);
+int     ssl3_setup_read_buffer(SSL *s);
+int     ssl3_setup_write_buffer(SSL *s);
+int     ssl3_release_read_buffer(SSL *s);
+int     ssl3_release_write_buffer(SSL *s);
+int     ssl3_digest_cached_records(SSL *s);
+int     ssl3_new(SSL *s);
+void    ssl3_free(SSL *s);
+int     ssl3_accept(SSL *s);
+int     ssl3_connect(SSL *s);
+int     ssl3_read(SSL *s, void *buf, int len);
+int     ssl3_peek(SSL *s, void *buf, int len);
+int     ssl3_write(SSL *s, const void *buf, int len);
+int     ssl3_shutdown(SSL *s);
+void    ssl3_clear(SSL *s);
+long    ssl3_ctrl(SSL *s,int cmd, long larg, void *parg);
+long    ssl3_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg);
+long    ssl3_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
+long    ssl3_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)(void));
+int     ssl3_pending(const SSL *s);
+
+void ssl3_record_sequence_update(unsigned char *seq);
+int ssl3_do_change_cipher_spec(SSL *ssl);
+long ssl3_default_timeout(void );
+
+int ssl23_num_ciphers(void );
+const SSL_CIPHER *ssl23_get_cipher(unsigned int u);
+int ssl23_read(SSL *s, void *buf, int len);
+int ssl23_peek(SSL *s, void *buf, int len);
+int ssl23_write(SSL *s, const void *buf, int len);
+int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
+const SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p);
+long ssl23_default_timeout(void );
+
+long tls1_default_timeout(void);
+int dtls1_do_write(SSL *s,int type);
+int ssl3_read_n(SSL *s, int n, int max, int extend);
+int dtls1_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
+int ssl3_do_compress(SSL *ssl);
+int ssl3_do_uncompress(SSL *ssl);
+int ssl3_write_pending(SSL *s, int type, const unsigned char *buf,
+        unsigned int len);
+unsigned char *dtls1_set_message_header(SSL *s, 
+        unsigned char *p, unsigned char mt,     unsigned long len, 
+        unsigned long frag_off, unsigned long frag_len);
+
+int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len);
+int dtls1_write_bytes(SSL *s, int type, const void *buf, int len);
+
+int dtls1_send_change_cipher_spec(SSL *s, int a, int b);
+int dtls1_send_finished(SSL *s, int a, int b, const char *sender, int slen);
+unsigned long dtls1_output_cert_chain(SSL *s, X509 *x);
+int dtls1_read_failed(SSL *s, int code);
+int dtls1_buffer_message(SSL *s, int ccs);
+int dtls1_retransmit_message(SSL *s, unsigned short seq, 
+        unsigned long frag_off, int *found);
+int dtls1_get_queue_priority(unsigned short seq, int is_ccs);
+int dtls1_retransmit_buffered_messages(SSL *s);
+void dtls1_clear_record_buffer(SSL *s);
+void dtls1_get_message_header(unsigned char *data, struct hm_header_st *msg_hdr);
+void dtls1_get_ccs_header(unsigned char *data, struct ccs_header_st *ccs_hdr);
+void dtls1_reset_seq_numbers(SSL *s, int rw);
+long dtls1_default_timeout(void);
+struct timeval* dtls1_get_timeout(SSL *s, struct timeval* timeleft);
+int dtls1_handle_timeout(SSL *s);
+const SSL_CIPHER *dtls1_get_cipher(unsigned int u);
+void dtls1_start_timer(SSL *s);
+void dtls1_stop_timer(SSL *s);
+int dtls1_is_timer_expired(SSL *s);
+void dtls1_double_timeout(SSL *s);
+int dtls1_send_newsession_ticket(SSL *s);
+unsigned int dtls1_min_mtu(void);
+
+/* some client-only functions */
+int ssl3_client_hello(SSL *s);
+int ssl3_get_server_hello(SSL *s);
+int ssl3_get_certificate_request(SSL *s);
+int ssl3_get_new_session_ticket(SSL *s);
+int ssl3_get_cert_status(SSL *s);
+int ssl3_get_server_done(SSL *s);
+int ssl3_send_client_verify(SSL *s);
+int ssl3_send_client_certificate(SSL *s);
+int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey);
+int ssl3_send_client_key_exchange(SSL *s);
+int ssl3_get_key_exchange(SSL *s);
+int ssl3_get_server_certificate(SSL *s);
+int ssl3_check_cert_and_algorithm(SSL *s);
+#ifndef OPENSSL_NO_TLSEXT
+int ssl3_check_finished(SSL *s);
+#endif
+
+int dtls1_client_hello(SSL *s);
+int dtls1_send_client_certificate(SSL *s);
+int dtls1_send_client_key_exchange(SSL *s);
+int dtls1_send_client_verify(SSL *s);
+
+/* some server-only functions */
+int ssl3_get_client_hello(SSL *s);
+int ssl3_send_server_hello(SSL *s);
+int ssl3_send_hello_request(SSL *s);
+int ssl3_send_server_key_exchange(SSL *s);
+int ssl3_send_certificate_request(SSL *s);
+int ssl3_send_server_done(SSL *s);
+int ssl3_check_client_hello(SSL *s);
+int ssl3_get_client_certificate(SSL *s);
+int ssl3_get_client_key_exchange(SSL *s);
+int ssl3_get_cert_verify(SSL *s);
+
+int dtls1_send_hello_request(SSL *s);
+int dtls1_send_server_hello(SSL *s);
+int dtls1_send_server_certificate(SSL *s);
+int dtls1_send_server_key_exchange(SSL *s);
+int dtls1_send_certificate_request(SSL *s);
+int dtls1_send_server_done(SSL *s);
+
+
+
+int ssl23_accept(SSL *s);
+int ssl23_connect(SSL *s);
+int ssl23_read_bytes(SSL *s, int n);
+int ssl23_write_bytes(SSL *s);
+
+int tls1_new(SSL *s);
+void tls1_free(SSL *s);
+void tls1_clear(SSL *s);
+long tls1_ctrl(SSL *s,int cmd, long larg, void *parg);
+long tls1_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
+
+int dtls1_new(SSL *s);
+int     dtls1_accept(SSL *s);
+int     dtls1_connect(SSL *s);
+void dtls1_free(SSL *s);
+void dtls1_clear(SSL *s);
+long dtls1_ctrl(SSL *s,int cmd, long larg, void *parg);
+
+long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
+int dtls1_get_record(SSL *s);
+int do_dtls1_write(SSL *s, int type, const unsigned char *buf,
+        unsigned int len, int create_empty_fragement);
+int dtls1_dispatch_alert(SSL *s);
+int dtls1_enc(SSL *s, int snd);
+
+int ssl_init_wbio_buffer(SSL *s, int push);
+void ssl_free_wbio_buffer(SSL *s);
+
+int tls1_change_cipher_state(SSL *s, int which);
+int tls1_setup_key_block(SSL *s);
+int tls1_enc(SSL *s, int snd);
+int tls1_final_finish_mac(SSL *s,
+        const char *str, int slen, unsigned char *p);
+int tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *p);
+int tls1_mac(SSL *ssl, unsigned char *md, int snd);
+int tls1_generate_master_secret(SSL *s, unsigned char *out,
+        unsigned char *p, int len);
+int tls1_alert_code(int code);
+int ssl3_alert_code(int code);
+int ssl_ok(SSL *s);
+
+#ifndef OPENSSL_NO_ECDH
+int ssl_check_srvr_ecc_cert_and_alg(X509 *x, const SSL_CIPHER *cs);
+#endif
+
+SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
+
+#ifndef OPENSSL_NO_EC
+int tls1_ec_curve_id2nid(int curve_id);
+int tls1_ec_nid2curve_id(int nid);
+#endif /* OPENSSL_NO_EC */
+
+#ifndef OPENSSL_NO_TLSEXT
+unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *p, unsigned char *limit); 
+unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *p, unsigned char *limit); 
+int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n, int *al);
+int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n, int *al);
+int ssl_prepare_clienthello_tlsext(SSL *s);
+int ssl_prepare_serverhello_tlsext(SSL *s);
+int ssl_check_clienthello_tlsext(SSL *s);
+int ssl_check_serverhello_tlsext(SSL *s);
+
+#ifdef OPENSSL_NO_SHA256
+#define tlsext_tick_md  EVP_sha1
+#else
+#define tlsext_tick_md  EVP_sha256
+#endif
+int tls1_process_ticket(SSL *s, unsigned char *session_id, int len,
+                                const unsigned char *limit, SSL_SESSION **ret);
+#endif
+EVP_MD_CTX* ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md) ;
+void ssl_clear_hash_ctx(EVP_MD_CTX **hash);
+int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
+                                        int maxlen);
+int ssl_parse_serverhello_renegotiate_ext(SSL *s, unsigned char *d, int len,
+                                          int *al);
+int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
+                                        int maxlen);
+int ssl_parse_clienthello_renegotiate_ext(SSL *s, unsigned char *d, int len,
+                                          int *al);
+#endif