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src/libdigidoc/openssl/ssl/ssl_locl.h
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00001 /* ssl/ssl_locl.h */
00002 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
00003  * All rights reserved.
00004  *
00005  * This package is an SSL implementation written
00006  * by Eric Young (eay@cryptsoft.com).
00007  * The implementation was written so as to conform with Netscapes SSL.
00008  * 
00009  * This library is free for commercial and non-commercial use as long as
00010  * the following conditions are aheared to.  The following conditions
00011  * apply to all code found in this distribution, be it the RC4, RSA,
00012  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
00013  * included with this distribution is covered by the same copyright terms
00014  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
00015  * 
00016  * Copyright remains Eric Young's, and as such any Copyright notices in
00017  * the code are not to be removed.
00018  * If this package is used in a product, Eric Young should be given attribution
00019  * as the author of the parts of the library used.
00020  * This can be in the form of a textual message at program startup or
00021  * in documentation (online or textual) provided with the package.
00022  * 
00023  * Redistribution and use in source and binary forms, with or without
00024  * modification, are permitted provided that the following conditions
00025  * are met:
00026  * 1. Redistributions of source code must retain the copyright
00027  *    notice, this list of conditions and the following disclaimer.
00028  * 2. Redistributions in binary form must reproduce the above copyright
00029  *    notice, this list of conditions and the following disclaimer in the
00030  *    documentation and/or other materials provided with the distribution.
00031  * 3. All advertising materials mentioning features or use of this software
00032  *    must display the following acknowledgement:
00033  *    "This product includes cryptographic software written by
00034  *     Eric Young (eay@cryptsoft.com)"
00035  *    The word 'cryptographic' can be left out if the rouines from the library
00036  *    being used are not cryptographic related :-).
00037  * 4. If you include any Windows specific code (or a derivative thereof) from 
00038  *    the apps directory (application code) you must include an acknowledgement:
00039  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
00040  * 
00041  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
00042  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00043  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00044  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
00045  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00046  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00047  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00048  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00049  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00050  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00051  * SUCH DAMAGE.
00052  * 
00053  * The licence and distribution terms for any publically available version or
00054  * derivative of this code cannot be changed.  i.e. this code cannot simply be
00055  * copied and put under another distribution licence
00056  * [including the GNU Public Licence.]
00057  */
00058 /* ====================================================================
00059  * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
00060  *
00061  * Redistribution and use in source and binary forms, with or without
00062  * modification, are permitted provided that the following conditions
00063  * are met:
00064  *
00065  * 1. Redistributions of source code must retain the above copyright
00066  *    notice, this list of conditions and the following disclaimer. 
00067  *
00068  * 2. Redistributions in binary form must reproduce the above copyright
00069  *    notice, this list of conditions and the following disclaimer in
00070  *    the documentation and/or other materials provided with the
00071  *    distribution.
00072  *
00073  * 3. All advertising materials mentioning features or use of this
00074  *    software must display the following acknowledgment:
00075  *    "This product includes software developed by the OpenSSL Project
00076  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
00077  *
00078  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
00079  *    endorse or promote products derived from this software without
00080  *    prior written permission. For written permission, please contact
00081  *    openssl-core@openssl.org.
00082  *
00083  * 5. Products derived from this software may not be called "OpenSSL"
00084  *    nor may "OpenSSL" appear in their names without prior written
00085  *    permission of the OpenSSL Project.
00086  *
00087  * 6. Redistributions of any form whatsoever must retain the following
00088  *    acknowledgment:
00089  *    "This product includes software developed by the OpenSSL Project
00090  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
00091  *
00092  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
00093  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00094  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
00095  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
00096  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00097  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
00098  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
00099  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
00101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
00102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
00103  * OF THE POSSIBILITY OF SUCH DAMAGE.
00104  * ====================================================================
00105  *
00106  * This product includes cryptographic software written by Eric Young
00107  * (eay@cryptsoft.com).  This product includes software written by Tim
00108  * Hudson (tjh@cryptsoft.com).
00109  *
00110  */
00111 /* ====================================================================
00112  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
00113  * ECC cipher suite support in OpenSSL originally developed by 
00114  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
00115  */
00116 
00117 #ifndef HEADER_SSL_LOCL_H
00118 #define HEADER_SSL_LOCL_H
00119 #include <stdlib.h>
00120 #include <time.h>
00121 #include <string.h>
00122 #include <errno.h>
00123 
00124 #include "e_os.h"
00125 
00126 #include <openssl/buffer.h>
00127 #ifndef OPENSSL_NO_COMP
00128 #include <openssl/comp.h>
00129 #endif
00130 #include <openssl/bio.h>
00131 #include <openssl/stack.h>
00132 #ifndef OPENSSL_NO_RSA
00133 #include <openssl/rsa.h>
00134 #endif
00135 #ifndef OPENSSL_NO_DSA
00136 #include <openssl/dsa.h>
00137 #endif
00138 #include <openssl/err.h>
00139 #include <openssl/ssl.h>
00140 #include <openssl/symhacks.h>
00141 
00142 #ifdef OPENSSL_BUILD_SHLIBSSL
00143 # undef OPENSSL_EXTERN
00144 # define OPENSSL_EXTERN OPENSSL_EXPORT
00145 #endif
00146 
00147 #define PKCS1_CHECK
00148 
00149 #define c2l(c,l)        (l = ((unsigned long)(*((c)++)))     , \
00150                          l|=(((unsigned long)(*((c)++)))<< 8), \
00151                          l|=(((unsigned long)(*((c)++)))<<16), \
00152                          l|=(((unsigned long)(*((c)++)))<<24))
00153 
00154 /* NOTE - c is not incremented as per c2l */
00155 #define c2ln(c,l1,l2,n) { \
00156                         c+=n; \
00157                         l1=l2=0; \
00158                         switch (n) { \
00159                         case 8: l2 =((unsigned long)(*(--(c))))<<24; \
00160                         case 7: l2|=((unsigned long)(*(--(c))))<<16; \
00161                         case 6: l2|=((unsigned long)(*(--(c))))<< 8; \
00162                         case 5: l2|=((unsigned long)(*(--(c))));     \
00163                         case 4: l1 =((unsigned long)(*(--(c))))<<24; \
00164                         case 3: l1|=((unsigned long)(*(--(c))))<<16; \
00165                         case 2: l1|=((unsigned long)(*(--(c))))<< 8; \
00166                         case 1: l1|=((unsigned long)(*(--(c))));     \
00167                                 } \
00168                         }
00169 
00170 #define l2c(l,c)        (*((c)++)=(unsigned char)(((l)    )&0xff), \
00171                          *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
00172                          *((c)++)=(unsigned char)(((l)>>16)&0xff), \
00173                          *((c)++)=(unsigned char)(((l)>>24)&0xff))
00174 
00175 #define n2l(c,l)        (l =((unsigned long)(*((c)++)))<<24, \
00176                          l|=((unsigned long)(*((c)++)))<<16, \
00177                          l|=((unsigned long)(*((c)++)))<< 8, \
00178                          l|=((unsigned long)(*((c)++))))
00179 
00180 #define l2n(l,c)        (*((c)++)=(unsigned char)(((l)>>24)&0xff), \
00181                          *((c)++)=(unsigned char)(((l)>>16)&0xff), \
00182                          *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
00183                          *((c)++)=(unsigned char)(((l)    )&0xff))
00184 
00185 #define l2n6(l,c)       (*((c)++)=(unsigned char)(((l)>>40)&0xff), \
00186                          *((c)++)=(unsigned char)(((l)>>32)&0xff), \
00187                          *((c)++)=(unsigned char)(((l)>>24)&0xff), \
00188                          *((c)++)=(unsigned char)(((l)>>16)&0xff), \
00189                          *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
00190                          *((c)++)=(unsigned char)(((l)    )&0xff))
00191 
00192 #define n2l6(c,l)       (l =((BN_ULLONG)(*((c)++)))<<40, \
00193                          l|=((BN_ULLONG)(*((c)++)))<<32, \
00194                          l|=((BN_ULLONG)(*((c)++)))<<24, \
00195                          l|=((BN_ULLONG)(*((c)++)))<<16, \
00196                          l|=((BN_ULLONG)(*((c)++)))<< 8, \
00197                          l|=((BN_ULLONG)(*((c)++))))
00198 
00199 /* NOTE - c is not incremented as per l2c */
00200 #define l2cn(l1,l2,c,n) { \
00201                         c+=n; \
00202                         switch (n) { \
00203                         case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
00204                         case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
00205                         case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
00206                         case 5: *(--(c))=(unsigned char)(((l2)    )&0xff); \
00207                         case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
00208                         case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
00209                         case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
00210                         case 1: *(--(c))=(unsigned char)(((l1)    )&0xff); \
00211                                 } \
00212                         }
00213 
00214 #define n2s(c,s)        ((s=(((unsigned int)(c[0]))<< 8)| \
00215                             (((unsigned int)(c[1]))    )),c+=2)
00216 #define s2n(s,c)        ((c[0]=(unsigned char)(((s)>> 8)&0xff), \
00217                           c[1]=(unsigned char)(((s)    )&0xff)),c+=2)
00218 
00219 #define n2l3(c,l)       ((l =(((unsigned long)(c[0]))<<16)| \
00220                              (((unsigned long)(c[1]))<< 8)| \
00221                              (((unsigned long)(c[2]))    )),c+=3)
00222 
00223 #define l2n3(l,c)       ((c[0]=(unsigned char)(((l)>>16)&0xff), \
00224                           c[1]=(unsigned char)(((l)>> 8)&0xff), \
00225                           c[2]=(unsigned char)(((l)    )&0xff)),c+=3)
00226 
00227 /* LOCAL STUFF */
00228 
00229 #define SSL_DECRYPT     0
00230 #define SSL_ENCRYPT     1
00231 
00232 #define TWO_BYTE_BIT    0x80
00233 #define SEC_ESC_BIT     0x40
00234 #define TWO_BYTE_MASK   0x7fff
00235 #define THREE_BYTE_MASK 0x3fff
00236 
00237 #define INC32(a)        ((a)=((a)+1)&0xffffffffL)
00238 #define DEC32(a)        ((a)=((a)-1)&0xffffffffL)
00239 #define MAX_MAC_SIZE    20 /* up from 16 for SSLv3 */
00240 
00241 /*
00242  * Define the Bitmasks for SSL_CIPHER.algorithms.
00243  * This bits are used packed as dense as possible. If new methods/ciphers
00244  * etc will be added, the bits a likely to change, so this information
00245  * is for internal library use only, even though SSL_CIPHER.algorithms
00246  * can be publicly accessed.
00247  * Use the according functions for cipher management instead.
00248  *
00249  * The bit mask handling in the selection and sorting scheme in
00250  * ssl_create_cipher_list() has only limited capabilities, reflecting
00251  * that the different entities within are mutually exclusive:
00252  * ONLY ONE BIT PER MASK CAN BE SET AT A TIME.
00253  */
00254 #define SSL_MKEY_MASK           0x000000FFL
00255 #define SSL_kRSA                0x00000001L /* RSA key exchange */
00256 #define SSL_kDHr                0x00000002L /* DH cert RSA CA cert */
00257 #define SSL_kDHd                0x00000004L /* DH cert DSA CA cert */
00258 #define SSL_kFZA                0x00000008L
00259 #define SSL_kEDH                0x00000010L /* tmp DH key no DH cert */
00260 #define SSL_kKRB5               0x00000020L /* Kerberos5 key exchange */
00261 #define SSL_kECDH               0x00000040L /* ECDH w/ long-term keys */
00262 #define SSL_kECDHE              0x00000080L /* ephemeral ECDH */
00263 #define SSL_EDH                 (SSL_kEDH|(SSL_AUTH_MASK^SSL_aNULL))
00264 
00265 #define SSL_AUTH_MASK           0x00007F00L
00266 #define SSL_aRSA                0x00000100L /* Authenticate with RSA */
00267 #define SSL_aDSS                0x00000200L /* Authenticate with DSS */
00268 #define SSL_DSS                 SSL_aDSS
00269 #define SSL_aFZA                0x00000400L
00270 #define SSL_aNULL               0x00000800L /* no Authenticate, ADH */
00271 #define SSL_aDH                 0x00001000L /* no Authenticate, ADH */
00272 #define SSL_aKRB5               0x00002000L /* Authenticate with KRB5 */
00273 #define SSL_aECDSA              0x00004000L /* Authenticate with ECDSA */
00274 
00275 #define SSL_NULL                (SSL_eNULL)
00276 #define SSL_ADH                 (SSL_kEDH|SSL_aNULL)
00277 #define SSL_RSA                 (SSL_kRSA|SSL_aRSA)
00278 #define SSL_DH                  (SSL_kDHr|SSL_kDHd|SSL_kEDH)
00279 #define SSL_ECDH                (SSL_kECDH|SSL_kECDHE)
00280 #define SSL_FZA                 (SSL_aFZA|SSL_kFZA|SSL_eFZA)
00281 #define SSL_KRB5                (SSL_kKRB5|SSL_aKRB5)
00282 
00283 #define SSL_ENC_MASK            0x1C3F8000L
00284 #define SSL_DES                 0x00008000L
00285 #define SSL_3DES                0x00010000L
00286 #define SSL_RC4                 0x00020000L
00287 #define SSL_RC2                 0x00040000L
00288 #define SSL_IDEA                0x00080000L
00289 #define SSL_eFZA                0x00100000L
00290 #define SSL_eNULL               0x00200000L
00291 #define SSL_AES                 0x04000000L
00292 #define SSL_CAMELLIA            0x08000000L
00293 #define SSL_SEED                0x10000000L
00294 
00295 #define SSL_MAC_MASK            0x00c00000L
00296 #define SSL_MD5                 0x00400000L
00297 #define SSL_SHA1                0x00800000L
00298 #define SSL_SHA                 (SSL_SHA1)
00299 
00300 #define SSL_SSL_MASK            0x03000000L
00301 #define SSL_SSLV2               0x01000000L
00302 #define SSL_SSLV3               0x02000000L
00303 #define SSL_TLSV1               SSL_SSLV3       /* for now */
00304 
00305 /* we have used 1fffffff - 3 bits left to go. */
00306 
00307 /*
00308  * Export and cipher strength information. For each cipher we have to decide
00309  * whether it is exportable or not. This information is likely to change
00310  * over time, since the export control rules are no static technical issue.
00311  *
00312  * Independent of the export flag the cipher strength is sorted into classes.
00313  * SSL_EXP40 was denoting the 40bit US export limit of past times, which now
00314  * is at 56bit (SSL_EXP56). If the exportable cipher class is going to change
00315  * again (eg. to 64bit) the use of "SSL_EXP*" becomes blurred even more,
00316  * since SSL_EXP64 could be similar to SSL_LOW.
00317  * For this reason SSL_MICRO and SSL_MINI macros are included to widen the
00318  * namespace of SSL_LOW-SSL_HIGH to lower values. As development of speed
00319  * and ciphers goes, another extension to SSL_SUPER and/or SSL_ULTRA would
00320  * be possible.
00321  */
00322 #define SSL_EXP_MASK            0x00000003L
00323 #define SSL_NOT_EXP             0x00000001L
00324 #define SSL_EXPORT              0x00000002L
00325 
00326 #define SSL_STRONG_MASK         0x000000fcL
00327 #define SSL_STRONG_NONE         0x00000004L
00328 #define SSL_EXP40               0x00000008L
00329 #define SSL_MICRO               (SSL_EXP40)
00330 #define SSL_EXP56               0x00000010L
00331 #define SSL_MINI                (SSL_EXP56)
00332 #define SSL_LOW                 0x00000020L
00333 #define SSL_MEDIUM              0x00000040L
00334 #define SSL_HIGH                0x00000080L
00335 #define SSL_FIPS                0x00000100L
00336 
00337 /* we have used 000001ff - 23 bits left to go */
00338 
00339 /*
00340  * Macros to check the export status and cipher strength for export ciphers.
00341  * Even though the macros for EXPORT and EXPORT40/56 have similar names,
00342  * their meaning is different:
00343  * *_EXPORT macros check the 'exportable' status.
00344  * *_EXPORT40/56 macros are used to check whether a certain cipher strength
00345  *          is given.
00346  * Since the SSL_IS_EXPORT* and SSL_EXPORT* macros depend on the correct
00347  * algorithm structure element to be passed (algorithms, algo_strength) and no
00348  * typechecking can be done as they are all of type unsigned long, their
00349  * direct usage is discouraged.
00350  * Use the SSL_C_* macros instead.
00351  */
00352 #define SSL_IS_EXPORT(a)        ((a)&SSL_EXPORT)
00353 #define SSL_IS_EXPORT56(a)      ((a)&SSL_EXP56)
00354 #define SSL_IS_EXPORT40(a)      ((a)&SSL_EXP40)
00355 #define SSL_C_IS_EXPORT(c)      SSL_IS_EXPORT((c)->algo_strength)
00356 #define SSL_C_IS_EXPORT56(c)    SSL_IS_EXPORT56((c)->algo_strength)
00357 #define SSL_C_IS_EXPORT40(c)    SSL_IS_EXPORT40((c)->algo_strength)
00358 
00359 #define SSL_EXPORT_KEYLENGTH(a,s)       (SSL_IS_EXPORT40(s) ? 5 : \
00360                                  ((a)&SSL_ENC_MASK) == SSL_DES ? 8 : 7)
00361 #define SSL_EXPORT_PKEYLENGTH(a) (SSL_IS_EXPORT40(a) ? 512 : 1024)
00362 #define SSL_C_EXPORT_KEYLENGTH(c)       SSL_EXPORT_KEYLENGTH((c)->algorithms, \
00363                                 (c)->algo_strength)
00364 #define SSL_C_EXPORT_PKEYLENGTH(c)      SSL_EXPORT_PKEYLENGTH((c)->algo_strength)
00365 
00366 
00367 #define SSL_ALL                 0xffffffffL
00368 #define SSL_ALL_CIPHERS         (SSL_MKEY_MASK|SSL_AUTH_MASK|SSL_ENC_MASK|\
00369                                 SSL_MAC_MASK)
00370 #define SSL_ALL_STRENGTHS       (SSL_EXP_MASK|SSL_STRONG_MASK)
00371 
00372 /* Mostly for SSLv3 */
00373 #define SSL_PKEY_RSA_ENC        0
00374 #define SSL_PKEY_RSA_SIGN       1
00375 #define SSL_PKEY_DSA_SIGN       2
00376 #define SSL_PKEY_DH_RSA         3
00377 #define SSL_PKEY_DH_DSA         4
00378 #define SSL_PKEY_ECC            5
00379 #define SSL_PKEY_NUM            6
00380 
00381 /* SSL_kRSA <- RSA_ENC | (RSA_TMP & RSA_SIGN) |
00382  *          <- (EXPORT & (RSA_ENC | RSA_TMP) & RSA_SIGN)
00383  * SSL_kDH  <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
00384  * SSL_kEDH <- RSA_ENC | RSA_SIGN | DSA_SIGN
00385  * SSL_aRSA <- RSA_ENC | RSA_SIGN
00386  * SSL_aDSS <- DSA_SIGN
00387  */
00388 
00389 /*
00390 #define CERT_INVALID            0
00391 #define CERT_PUBLIC_KEY         1
00392 #define CERT_PRIVATE_KEY        2
00393 */
00394 
00395 #ifndef OPENSSL_NO_EC
00396 /* From ECC-TLS draft, used in encoding the curve type in 
00397  * ECParameters
00398  */
00399 #define EXPLICIT_PRIME_CURVE_TYPE  1   
00400 #define EXPLICIT_CHAR2_CURVE_TYPE  2
00401 #define NAMED_CURVE_TYPE           3
00402 #endif  /* OPENSSL_NO_EC */
00403 
00404 typedef struct cert_pkey_st
00405         {
00406         X509 *x509;
00407         EVP_PKEY *privatekey;
00408         } CERT_PKEY;
00409 
00410 typedef struct cert_st
00411         {
00412         /* Current active set */
00413         CERT_PKEY *key; /* ALWAYS points to an element of the pkeys array
00414                          * Probably it would make more sense to store
00415                          * an index, not a pointer. */
00416  
00417         /* The following masks are for the key and auth
00418          * algorithms that are supported by the certs below */
00419         int valid;
00420         unsigned long mask;
00421         unsigned long export_mask;
00422 #ifndef OPENSSL_NO_RSA
00423         RSA *rsa_tmp;
00424         RSA *(*rsa_tmp_cb)(SSL *ssl,int is_export,int keysize);
00425 #endif
00426 #ifndef OPENSSL_NO_DH
00427         DH *dh_tmp;
00428         DH *(*dh_tmp_cb)(SSL *ssl,int is_export,int keysize);
00429 #endif
00430 #ifndef OPENSSL_NO_ECDH
00431         EC_KEY *ecdh_tmp;
00432         /* Callback for generating ephemeral ECDH keys */
00433         EC_KEY *(*ecdh_tmp_cb)(SSL *ssl,int is_export,int keysize);
00434 #endif
00435 
00436         CERT_PKEY pkeys[SSL_PKEY_NUM];
00437 
00438         int references; /* >1 only if SSL_copy_session_id is used */
00439         } CERT;
00440 
00441 
00442 typedef struct sess_cert_st
00443         {
00444         STACK_OF(X509) *cert_chain; /* as received from peer (not for SSL2) */
00445 
00446         /* The 'peer_...' members are used only by clients. */
00447         int peer_cert_type;
00448 
00449         CERT_PKEY *peer_key; /* points to an element of peer_pkeys (never NULL!) */
00450         CERT_PKEY peer_pkeys[SSL_PKEY_NUM];
00451         /* Obviously we don't have the private keys of these,
00452          * so maybe we shouldn't even use the CERT_PKEY type here. */
00453 
00454 #ifndef OPENSSL_NO_RSA
00455         RSA *peer_rsa_tmp; /* not used for SSL 2 */
00456 #endif
00457 #ifndef OPENSSL_NO_DH
00458         DH *peer_dh_tmp; /* not used for SSL 2 */
00459 #endif
00460 #ifndef OPENSSL_NO_ECDH
00461         EC_KEY *peer_ecdh_tmp;
00462 #endif
00463 
00464         int references; /* actually always 1 at the moment */
00465         } SESS_CERT;
00466 
00467 
00468 /*#define MAC_DEBUG     */
00469 
00470 /*#define ERR_DEBUG     */
00471 /*#define ABORT_DEBUG   */
00472 /*#define PKT_DEBUG 1   */
00473 /*#define DES_DEBUG     */
00474 /*#define DES_OFB_DEBUG */
00475 /*#define SSL_DEBUG     */
00476 /*#define RSA_DEBUG     */ 
00477 /*#define IDEA_DEBUG    */ 
00478 
00479 #define FP_ICC  (int (*)(const void *,const void *))
00480 #define ssl_put_cipher_by_char(ssl,ciph,ptr) \
00481                 ((ssl)->method->put_cipher_by_char((ciph),(ptr)))
00482 #define ssl_get_cipher_by_char(ssl,ptr) \
00483                 ((ssl)->method->get_cipher_by_char(ptr))
00484 
00485 /* This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff
00486  * It is a bit of a mess of functions, but hell, think of it as
00487  * an opaque structure :-) */
00488 typedef struct ssl3_enc_method
00489         {
00490         int (*enc)(SSL *, int);
00491         int (*mac)(SSL *, unsigned char *, int);
00492         int (*setup_key_block)(SSL *);
00493         int (*generate_master_secret)(SSL *, unsigned char *, unsigned char *, int);
00494         int (*change_cipher_state)(SSL *, int);
00495         int (*final_finish_mac)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char *, int, unsigned char *);
00496         int finish_mac_length;
00497         int (*cert_verify_mac)(SSL *, EVP_MD_CTX *, unsigned char *);
00498         const char *client_finished_label;
00499         int client_finished_label_len;
00500         const char *server_finished_label;
00501         int server_finished_label_len;
00502         int (*alert_value)(int);
00503         } SSL3_ENC_METHOD;
00504 
00505 #ifndef OPENSSL_NO_COMP
00506 /* Used for holding the relevant compression methods loaded into SSL_CTX */
00507 typedef struct ssl3_comp_st
00508         {
00509         int comp_id;    /* The identifier byte for this compression type */
00510         char *name;     /* Text name used for the compression type */
00511         COMP_METHOD *method; /* The method :-) */
00512         } SSL3_COMP;
00513 #endif
00514 
00515 extern SSL3_ENC_METHOD ssl3_undef_enc_method;
00516 OPENSSL_EXTERN SSL_CIPHER ssl2_ciphers[];
00517 OPENSSL_EXTERN SSL_CIPHER ssl3_ciphers[];
00518 
00519 
00520 SSL_METHOD *ssl_bad_method(int ver);
00521 SSL_METHOD *sslv2_base_method(void);
00522 SSL_METHOD *sslv23_base_method(void);
00523 SSL_METHOD *sslv3_base_method(void);
00524 
00525 extern SSL3_ENC_METHOD TLSv1_enc_data;
00526 extern SSL3_ENC_METHOD SSLv3_enc_data;
00527 extern SSL3_ENC_METHOD DTLSv1_enc_data;
00528 
00529 #define IMPLEMENT_tls1_meth_func(func_name, s_accept, s_connect, s_get_meth) \
00530 SSL_METHOD *func_name(void)  \
00531         { \
00532         static SSL_METHOD func_name##_data= { \
00533                 TLS1_VERSION, \
00534                 tls1_new, \
00535                 tls1_clear, \
00536                 tls1_free, \
00537                 s_accept, \
00538                 s_connect, \
00539                 ssl3_read, \
00540                 ssl3_peek, \
00541                 ssl3_write, \
00542                 ssl3_shutdown, \
00543                 ssl3_renegotiate, \
00544                 ssl3_renegotiate_check, \
00545                 ssl3_get_message, \
00546                 ssl3_read_bytes, \
00547                 ssl3_write_bytes, \
00548                 ssl3_dispatch_alert, \
00549                 ssl3_ctrl, \
00550                 ssl3_ctx_ctrl, \
00551                 ssl3_get_cipher_by_char, \
00552                 ssl3_put_cipher_by_char, \
00553                 ssl3_pending, \
00554                 ssl3_num_ciphers, \
00555                 ssl3_get_cipher, \
00556                 s_get_meth, \
00557                 tls1_default_timeout, \
00558                 &TLSv1_enc_data, \
00559                 ssl_undefined_void_function, \
00560                 ssl3_callback_ctrl, \
00561                 ssl3_ctx_callback_ctrl, \
00562         }; \
00563         return &func_name##_data; \
00564         }
00565 
00566 #define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect, s_get_meth) \
00567 SSL_METHOD *func_name(void)  \
00568         { \
00569         static SSL_METHOD func_name##_data= { \
00570                 SSL3_VERSION, \
00571                 ssl3_new, \
00572                 ssl3_clear, \
00573                 ssl3_free, \
00574                 s_accept, \
00575                 s_connect, \
00576                 ssl3_read, \
00577                 ssl3_peek, \
00578                 ssl3_write, \
00579                 ssl3_shutdown, \
00580                 ssl3_renegotiate, \
00581                 ssl3_renegotiate_check, \
00582                 ssl3_get_message, \
00583                 ssl3_read_bytes, \
00584                 ssl3_write_bytes, \
00585                 ssl3_dispatch_alert, \
00586                 ssl3_ctrl, \
00587                 ssl3_ctx_ctrl, \
00588                 ssl3_get_cipher_by_char, \
00589                 ssl3_put_cipher_by_char, \
00590                 ssl3_pending, \
00591                 ssl3_num_ciphers, \
00592                 ssl3_get_cipher, \
00593                 s_get_meth, \
00594                 ssl3_default_timeout, \
00595                 &SSLv3_enc_data, \
00596                 ssl_undefined_void_function, \
00597                 ssl3_callback_ctrl, \
00598                 ssl3_ctx_callback_ctrl, \
00599         }; \
00600         return &func_name##_data; \
00601         }
00602 
00603 #define IMPLEMENT_ssl23_meth_func(func_name, s_accept, s_connect, s_get_meth) \
00604 SSL_METHOD *func_name(void)  \
00605         { \
00606         static SSL_METHOD func_name##_data= { \
00607         TLS1_VERSION, \
00608         tls1_new, \
00609         tls1_clear, \
00610         tls1_free, \
00611         s_accept, \
00612         s_connect, \
00613         ssl23_read, \
00614         ssl23_peek, \
00615         ssl23_write, \
00616         ssl_undefined_function, \
00617         ssl_undefined_function, \
00618         ssl_ok, \
00619         ssl3_get_message, \
00620         ssl3_read_bytes, \
00621         ssl3_write_bytes, \
00622         ssl3_dispatch_alert, \
00623         ssl3_ctrl, \
00624         ssl3_ctx_ctrl, \
00625         ssl23_get_cipher_by_char, \
00626         ssl23_put_cipher_by_char, \
00627         ssl_undefined_const_function, \
00628         ssl23_num_ciphers, \
00629         ssl23_get_cipher, \
00630         s_get_meth, \
00631         ssl23_default_timeout, \
00632         &ssl3_undef_enc_method, \
00633         ssl_undefined_void_function, \
00634         ssl3_callback_ctrl, \
00635         ssl3_ctx_callback_ctrl, \
00636         }; \
00637         return &func_name##_data; \
00638         }
00639 
00640 #define IMPLEMENT_ssl2_meth_func(func_name, s_accept, s_connect, s_get_meth) \
00641 SSL_METHOD *func_name(void)  \
00642         { \
00643         static SSL_METHOD func_name##_data= { \
00644                 SSL2_VERSION, \
00645                 ssl2_new,       /* local */ \
00646                 ssl2_clear,     /* local */ \
00647                 ssl2_free,      /* local */ \
00648                 s_accept, \
00649                 s_connect, \
00650                 ssl2_read, \
00651                 ssl2_peek, \
00652                 ssl2_write, \
00653                 ssl2_shutdown, \
00654                 ssl_ok, /* NULL - renegotiate */ \
00655                 ssl_ok, /* NULL - check renegotiate */ \
00656                 NULL, /* NULL - ssl_get_message */ \
00657                 NULL, /* NULL - ssl_get_record */ \
00658                 NULL, /* NULL - ssl_write_bytes */ \
00659                 NULL, /* NULL - dispatch_alert */ \
00660                 ssl2_ctrl,      /* local */ \
00661                 ssl2_ctx_ctrl,  /* local */ \
00662                 ssl2_get_cipher_by_char, \
00663                 ssl2_put_cipher_by_char, \
00664                 ssl2_pending, \
00665                 ssl2_num_ciphers, \
00666                 ssl2_get_cipher, \
00667                 s_get_meth, \
00668                 ssl2_default_timeout, \
00669                 &ssl3_undef_enc_method, \
00670                 ssl_undefined_void_function, \
00671                 ssl2_callback_ctrl,     /* local */ \
00672                 ssl2_ctx_callback_ctrl, /* local */ \
00673         }; \
00674         return &func_name##_data; \
00675         }
00676 
00677 #define IMPLEMENT_dtls1_meth_func(func_name, s_accept, s_connect, s_get_meth) \
00678 SSL_METHOD *func_name(void)  \
00679         { \
00680         static SSL_METHOD func_name##_data= { \
00681                 DTLS1_VERSION, \
00682                 dtls1_new, \
00683                 dtls1_clear, \
00684                 dtls1_free, \
00685                 s_accept, \
00686                 s_connect, \
00687                 ssl3_read, \
00688                 ssl3_peek, \
00689                 ssl3_write, \
00690                 ssl3_shutdown, \
00691                 ssl3_renegotiate, \
00692                 ssl3_renegotiate_check, \
00693                 dtls1_get_message, \
00694                 dtls1_read_bytes, \
00695                 dtls1_write_app_data_bytes, \
00696                 dtls1_dispatch_alert, \
00697                 dtls1_ctrl, \
00698                 ssl3_ctx_ctrl, \
00699                 ssl3_get_cipher_by_char, \
00700                 ssl3_put_cipher_by_char, \
00701                 ssl3_pending, \
00702                 ssl3_num_ciphers, \
00703                 dtls1_get_cipher, \
00704                 s_get_meth, \
00705                 dtls1_default_timeout, \
00706                 &DTLSv1_enc_data, \
00707                 ssl_undefined_void_function, \
00708                 ssl3_callback_ctrl, \
00709                 ssl3_ctx_callback_ctrl, \
00710         }; \
00711         return &func_name##_data; \
00712         }
00713 
00714 void ssl_clear_cipher_ctx(SSL *s);
00715 int ssl_clear_bad_session(SSL *s);
00716 CERT *ssl_cert_new(void);
00717 CERT *ssl_cert_dup(CERT *cert);
00718 int ssl_cert_inst(CERT **o);
00719 void ssl_cert_free(CERT *c);
00720 SESS_CERT *ssl_sess_cert_new(void);
00721 void ssl_sess_cert_free(SESS_CERT *sc);
00722 int ssl_set_peer_cert_type(SESS_CERT *c, int type);
00723 int ssl_get_new_session(SSL *s, int session);
00724 int ssl_get_prev_session(SSL *s, unsigned char *session,int len, const unsigned char *limit);
00725 int ssl_cipher_id_cmp(const SSL_CIPHER *a,const SSL_CIPHER *b);
00726 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
00727                         const SSL_CIPHER * const *bp);
00728 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
00729                                                STACK_OF(SSL_CIPHER) **skp);
00730 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
00731                              int (*put_cb)(const SSL_CIPHER *, unsigned char *));
00732 STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth,
00733                                              STACK_OF(SSL_CIPHER) **pref,
00734                                              STACK_OF(SSL_CIPHER) **sorted,
00735                                              const char *rule_str);
00736 void ssl_update_cache(SSL *s, int mode);
00737 int ssl_cipher_get_evp(const SSL_SESSION *s,const EVP_CIPHER **enc,
00738                        const EVP_MD **md,SSL_COMP **comp);
00739 int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk);
00740 int ssl_undefined_function(SSL *s);
00741 int ssl_undefined_void_function(void);
00742 int ssl_undefined_const_function(const SSL *s);
00743 X509 *ssl_get_server_send_cert(SSL *);
00744 EVP_PKEY *ssl_get_sign_pkey(SSL *,SSL_CIPHER *);
00745 int ssl_cert_type(X509 *x,EVP_PKEY *pkey);
00746 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher);
00747 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
00748 int ssl_verify_alarm_type(long type);
00749 void ssl_load_ciphers(void);
00750 
00751 int ssl2_enc_init(SSL *s, int client);
00752 int ssl2_generate_key_material(SSL *s);
00753 void ssl2_enc(SSL *s,int send_data);
00754 void ssl2_mac(SSL *s,unsigned char *mac,int send_data);
00755 SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p);
00756 int ssl2_put_cipher_by_char(const SSL_CIPHER *c,unsigned char *p);
00757 int ssl2_part_read(SSL *s, unsigned long f, int i);
00758 int ssl2_do_write(SSL *s);
00759 int ssl2_set_certificate(SSL *s, int type, int len, const unsigned char *data);
00760 void ssl2_return_error(SSL *s,int reason);
00761 void ssl2_write_error(SSL *s);
00762 int ssl2_num_ciphers(void);
00763 SSL_CIPHER *ssl2_get_cipher(unsigned int u);
00764 int     ssl2_new(SSL *s);
00765 void    ssl2_free(SSL *s);
00766 int     ssl2_accept(SSL *s);
00767 int     ssl2_connect(SSL *s);
00768 int     ssl2_read(SSL *s, void *buf, int len);
00769 int     ssl2_peek(SSL *s, void *buf, int len);
00770 int     ssl2_write(SSL *s, const void *buf, int len);
00771 int     ssl2_shutdown(SSL *s);
00772 void    ssl2_clear(SSL *s);
00773 long    ssl2_ctrl(SSL *s,int cmd, long larg, void *parg);
00774 long    ssl2_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg);
00775 long    ssl2_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
00776 long    ssl2_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)(void));
00777 int     ssl2_pending(const SSL *s);
00778 long    ssl2_default_timeout(void );
00779 
00780 SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
00781 int ssl3_put_cipher_by_char(const SSL_CIPHER *c,unsigned char *p);
00782 void ssl3_init_finished_mac(SSL *s);
00783 int ssl3_send_server_certificate(SSL *s);
00784 int ssl3_send_newsession_ticket(SSL *s);
00785 int ssl3_send_cert_status(SSL *s);
00786 int ssl3_get_finished(SSL *s,int state_a,int state_b);
00787 int ssl3_setup_key_block(SSL *s);
00788 int ssl3_send_change_cipher_spec(SSL *s,int state_a,int state_b);
00789 int ssl3_change_cipher_state(SSL *s,int which);
00790 void ssl3_cleanup_key_block(SSL *s);
00791 int ssl3_do_write(SSL *s,int type);
00792 int ssl3_send_alert(SSL *s,int level, int desc);
00793 int ssl3_generate_master_secret(SSL *s, unsigned char *out,
00794         unsigned char *p, int len);
00795 int ssl3_get_req_cert_type(SSL *s,unsigned char *p);
00796 long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
00797 int ssl3_send_finished(SSL *s, int a, int b, const char *sender,int slen);
00798 int ssl3_num_ciphers(void);
00799 SSL_CIPHER *ssl3_get_cipher(unsigned int u);
00800 int ssl3_renegotiate(SSL *ssl); 
00801 int ssl3_renegotiate_check(SSL *ssl); 
00802 int ssl3_dispatch_alert(SSL *s);
00803 int ssl3_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
00804 int ssl3_write_bytes(SSL *s, int type, const void *buf, int len);
00805 int ssl3_final_finish_mac(SSL *s, EVP_MD_CTX *ctx1, EVP_MD_CTX *ctx2,
00806         const char *sender, int slen,unsigned char *p);
00807 int ssl3_cert_verify_mac(SSL *s, EVP_MD_CTX *in, unsigned char *p);
00808 void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len);
00809 int ssl3_enc(SSL *s, int send_data);
00810 int ssl3_mac(SSL *ssl, unsigned char *md, int send_data);
00811 unsigned long ssl3_output_cert_chain(SSL *s, X509 *x);
00812 SSL_CIPHER *ssl3_choose_cipher(SSL *ssl,STACK_OF(SSL_CIPHER) *clnt,
00813                                STACK_OF(SSL_CIPHER) *srvr);
00814 int     ssl3_setup_buffers(SSL *s);
00815 int     ssl3_new(SSL *s);
00816 void    ssl3_free(SSL *s);
00817 int     ssl3_accept(SSL *s);
00818 int     ssl3_connect(SSL *s);
00819 int     ssl3_read(SSL *s, void *buf, int len);
00820 int     ssl3_peek(SSL *s, void *buf, int len);
00821 int     ssl3_write(SSL *s, const void *buf, int len);
00822 int     ssl3_shutdown(SSL *s);
00823 void    ssl3_clear(SSL *s);
00824 long    ssl3_ctrl(SSL *s,int cmd, long larg, void *parg);
00825 long    ssl3_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg);
00826 long    ssl3_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
00827 long    ssl3_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)(void));
00828 int     ssl3_pending(const SSL *s);
00829 
00830 void ssl3_record_sequence_update(unsigned char *seq);
00831 int ssl3_do_change_cipher_spec(SSL *ssl);
00832 long ssl3_default_timeout(void );
00833 
00834 int ssl23_num_ciphers(void );
00835 SSL_CIPHER *ssl23_get_cipher(unsigned int u);
00836 int ssl23_read(SSL *s, void *buf, int len);
00837 int ssl23_peek(SSL *s, void *buf, int len);
00838 int ssl23_write(SSL *s, const void *buf, int len);
00839 int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
00840 SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p);
00841 long ssl23_default_timeout(void );
00842 
00843 long tls1_default_timeout(void);
00844 int dtls1_do_write(SSL *s,int type);
00845 int ssl3_read_n(SSL *s, int n, int max, int extend);
00846 int dtls1_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
00847 int ssl3_do_compress(SSL *ssl);
00848 int ssl3_do_uncompress(SSL *ssl);
00849 int ssl3_write_pending(SSL *s, int type, const unsigned char *buf,
00850         unsigned int len);
00851 unsigned char *dtls1_set_message_header(SSL *s, 
00852         unsigned char *p, unsigned char mt,     unsigned long len, 
00853         unsigned long frag_off, unsigned long frag_len);
00854 
00855 int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len);
00856 int dtls1_write_bytes(SSL *s, int type, const void *buf, int len);
00857 
00858 int dtls1_send_change_cipher_spec(SSL *s, int a, int b);
00859 int dtls1_send_finished(SSL *s, int a, int b, const char *sender, int slen);
00860 unsigned long dtls1_output_cert_chain(SSL *s, X509 *x);
00861 int dtls1_read_failed(SSL *s, int code);
00862 int dtls1_buffer_message(SSL *s, int ccs);
00863 int dtls1_retransmit_message(SSL *s, unsigned short seq, 
00864         unsigned long frag_off, int *found);
00865 int dtls1_get_queue_priority(unsigned short seq, int is_ccs);
00866 int dtls1_retransmit_buffered_messages(SSL *s);
00867 void dtls1_clear_record_buffer(SSL *s);
00868 void dtls1_get_message_header(unsigned char *data, struct hm_header_st *msg_hdr);
00869 void dtls1_get_ccs_header(unsigned char *data, struct ccs_header_st *ccs_hdr);
00870 void dtls1_reset_seq_numbers(SSL *s, int rw);
00871 long dtls1_default_timeout(void);
00872 struct timeval* dtls1_get_timeout(SSL *s, struct timeval* timeleft);
00873 int dtls1_handle_timeout(SSL *s);
00874 SSL_CIPHER *dtls1_get_cipher(unsigned int u);
00875 void dtls1_start_timer(SSL *s);
00876 void dtls1_stop_timer(SSL *s);
00877 int dtls1_is_timer_expired(SSL *s);
00878 void dtls1_double_timeout(SSL *s);
00879 int dtls1_send_newsession_ticket(SSL *s);
00880 
00881 
00882 /* some client-only functions */
00883 int ssl3_client_hello(SSL *s);
00884 int ssl3_get_server_hello(SSL *s);
00885 int ssl3_get_certificate_request(SSL *s);
00886 int ssl3_get_new_session_ticket(SSL *s);
00887 int ssl3_get_cert_status(SSL *s);
00888 int ssl3_get_server_done(SSL *s);
00889 int ssl3_send_client_verify(SSL *s);
00890 int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey);
00891 int ssl3_send_client_certificate(SSL *s);
00892 int ssl3_send_client_key_exchange(SSL *s);
00893 int ssl3_get_key_exchange(SSL *s);
00894 int ssl3_get_server_certificate(SSL *s);
00895 int ssl3_check_cert_and_algorithm(SSL *s);
00896 #ifndef OPENSSL_NO_TLSEXT
00897 int ssl3_check_finished(SSL *s);
00898 #endif
00899 
00900 int dtls1_client_hello(SSL *s);
00901 int dtls1_send_client_certificate(SSL *s);
00902 int dtls1_send_client_key_exchange(SSL *s);
00903 int dtls1_send_client_verify(SSL *s);
00904 
00905 /* some server-only functions */
00906 int ssl3_get_client_hello(SSL *s);
00907 int ssl3_send_server_hello(SSL *s);
00908 int ssl3_send_hello_request(SSL *s);
00909 int ssl3_send_server_key_exchange(SSL *s);
00910 int ssl3_send_certificate_request(SSL *s);
00911 int ssl3_send_server_done(SSL *s);
00912 int ssl3_check_client_hello(SSL *s);
00913 int ssl3_get_client_certificate(SSL *s);
00914 int ssl3_get_client_key_exchange(SSL *s);
00915 int ssl3_get_cert_verify(SSL *s);
00916 
00917 int dtls1_send_hello_request(SSL *s);
00918 int dtls1_send_server_hello(SSL *s);
00919 int dtls1_send_server_certificate(SSL *s);
00920 int dtls1_send_server_key_exchange(SSL *s);
00921 int dtls1_send_certificate_request(SSL *s);
00922 int dtls1_send_server_done(SSL *s);
00923 
00924 
00925 
00926 int ssl23_accept(SSL *s);
00927 int ssl23_connect(SSL *s);
00928 int ssl23_read_bytes(SSL *s, int n);
00929 int ssl23_write_bytes(SSL *s);
00930 
00931 int tls1_new(SSL *s);
00932 void tls1_free(SSL *s);
00933 void tls1_clear(SSL *s);
00934 long tls1_ctrl(SSL *s,int cmd, long larg, void *parg);
00935 long tls1_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
00936 SSL_METHOD *tlsv1_base_method(void );
00937 
00938 int dtls1_new(SSL *s);
00939 int     dtls1_accept(SSL *s);
00940 int     dtls1_connect(SSL *s);
00941 void dtls1_free(SSL *s);
00942 void dtls1_clear(SSL *s);
00943 long dtls1_ctrl(SSL *s,int cmd, long larg, void *parg);
00944 SSL_METHOD *dtlsv1_base_method(void );
00945 
00946 long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
00947 int dtls1_get_record(SSL *s);
00948 int do_dtls1_write(SSL *s, int type, const unsigned char *buf,
00949         unsigned int len, int create_empty_fragement);
00950 int dtls1_dispatch_alert(SSL *s);
00951 int dtls1_enc(SSL *s, int snd);
00952 
00953 int ssl_init_wbio_buffer(SSL *s, int push);
00954 void ssl_free_wbio_buffer(SSL *s);
00955 
00956 int tls1_change_cipher_state(SSL *s, int which);
00957 int tls1_setup_key_block(SSL *s);
00958 int tls1_enc(SSL *s, int snd);
00959 int tls1_final_finish_mac(SSL *s, EVP_MD_CTX *in1_ctx, EVP_MD_CTX *in2_ctx,
00960         const char *str, int slen, unsigned char *p);
00961 int tls1_cert_verify_mac(SSL *s, EVP_MD_CTX *in, unsigned char *p);
00962 int tls1_mac(SSL *ssl, unsigned char *md, int snd);
00963 int tls1_generate_master_secret(SSL *s, unsigned char *out,
00964         unsigned char *p, int len);
00965 int tls1_alert_code(int code);
00966 int ssl3_alert_code(int code);
00967 int ssl_ok(SSL *s);
00968 
00969 int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs);
00970 
00971 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
00972 
00973 #ifndef OPENSSL_NO_TLSEXT
00974 unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *p, unsigned char *limit); 
00975 unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *p, unsigned char *limit); 
00976 int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n, int *al);
00977 int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n, int *al);
00978 int ssl_prepare_clienthello_tlsext(SSL *s);
00979 int ssl_prepare_serverhello_tlsext(SSL *s);
00980 int ssl_check_clienthello_tlsext(SSL *s);
00981 int ssl_check_serverhello_tlsext(SSL *s);
00982 
00983 #ifdef OPENSSL_NO_SHA256
00984 #define tlsext_tick_md  EVP_sha1
00985 #else
00986 #define tlsext_tick_md  EVP_sha256
00987 #endif
00988 int tls1_process_ticket(SSL *s, unsigned char *session_id, int len,
00989                                 const unsigned char *limit, SSL_SESSION **ret);
00990 EVP_MD_CTX* ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md) ;
00991 void ssl_clear_hash_ctx(EVP_MD_CTX **hash);
00992 
00993 int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
00994                                         int maxlen);
00995 int ssl_parse_serverhello_renegotiate_ext(SSL *s, unsigned char *d, int len,
00996                                           int *al);
00997 int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
00998                                         int maxlen);
00999 int ssl_parse_clienthello_renegotiate_ext(SSL *s, unsigned char *d, int len,
01000                                           int *al);
01001 #endif
01002 
01003 #endif
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