ssl/ssl_locl.h

   1 /* ssl/ssl_locl.h */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@cryptsoft.com).
   7  * The implementation was written so as to conform with Netscapes SSL.
   8  *
   9  * This library is free for commercial and non-commercial use as long as
  10  * the following conditions are aheared to.  The following conditions
  11  * apply to all code found in this distribution, be it the RC4, RSA,
  12  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  13  * included with this distribution is covered by the same copyright terms
  14  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  15  *
  16  * Copyright remains Eric Young's, and as such any Copyright notices in
  17  * the code are not to be removed.
  18  * If this package is used in a product, Eric Young should be given attribution
  19  * as the author of the parts of the library used.
  20  * This can be in the form of a textual message at program startup or
  21  * in documentation (online or textual) provided with the package.
  22  *
  23  * Redistribution and use in source and binary forms, with or without
  24  * modification, are permitted provided that the following conditions
  25  * are met:
  26  * 1. Redistributions of source code must retain the copyright
  27  *    notice, this list of conditions and the following disclaimer.
  28  * 2. Redistributions in binary form must reproduce the above copyright
  29  *    notice, this list of conditions and the following disclaimer in the
  30  *    documentation and/or other materials provided with the distribution.
  31  * 3. All advertising materials mentioning features or use of this software
  32  *    must display the following acknowledgement:
  33  *    "This product includes cryptographic software written by
  34  *     Eric Young (eay@cryptsoft.com)"
  35  *    The word 'cryptographic' can be left out if the rouines from the library
  36  *    being used are not cryptographic related :-).
  37  * 4. If you include any Windows specific code (or a derivative thereof) from
  38  *    the apps directory (application code) you must include an acknowledgement:
  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 /* ====================================================================
  59  * Copyright (c) 1998-2007 The OpenSSL Project.  All rights reserved.
  60  *
  61  * Redistribution and use in source and binary forms, with or without
  62  * modification, are permitted provided that the following conditions
  63  * are met:
  64  *
  65  * 1. Redistributions of source code must retain the above copyright
  66  *    notice, this list of conditions and the following disclaimer.
  67  *
  68  * 2. Redistributions in binary form must reproduce the above copyright
  69  *    notice, this list of conditions and the following disclaimer in
  70  *    the documentation and/or other materials provided with the
  71  *    distribution.
  72  *
  73  * 3. All advertising materials mentioning features or use of this
  74  *    software must display the following acknowledgment:
  75  *    "This product includes software developed by the OpenSSL Project
  76  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  77  *
  78  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  79  *    endorse or promote products derived from this software without
  80  *    prior written permission. For written permission, please contact
  81  *    openssl-core@openssl.org.
  82  *
  83  * 5. Products derived from this software may not be called "OpenSSL"
  84  *    nor may "OpenSSL" appear in their names without prior written
  85  *    permission of the OpenSSL Project.
  86  *
  87  * 6. Redistributions of any form whatsoever must retain the following
  88  *    acknowledgment:
  89  *    "This product includes software developed by the OpenSSL Project
  90  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  91  *
  92  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  93  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  94  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  95  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  96  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  97  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  98  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  99  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 100  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 101  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 102  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 103  * OF THE POSSIBILITY OF SUCH DAMAGE.
 104  * ====================================================================
 105  *
 106  * This product includes cryptographic software written by Eric Young
 107  * (eay@cryptsoft.com).  This product includes software written by Tim
 108  * Hudson (tjh@cryptsoft.com).
 109  *
 110  */
 111 /* ====================================================================
 112  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 113  * ECC cipher suite support in OpenSSL originally developed by
 114  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
 115  */
 116 /* ====================================================================
 117  * Copyright 2005 Nokia. All rights reserved.
 118  *
 119  * The portions of the attached software ("Contribution") is developed by
 120  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
 121  * license.
 122  *
 123  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
 124  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
 125  * support (see RFC 4279) to OpenSSL.
 126  *
 127  * No patent licenses or other rights except those expressly stated in
 128  * the OpenSSL open source license shall be deemed granted or received
 129  * expressly, by implication, estoppel, or otherwise.
 130  *
 131  * No assurances are provided by Nokia that the Contribution does not
 132  * infringe the patent or other intellectual property rights of any third
 133  * party or that the license provides you with all the necessary rights
 134  * to make use of the Contribution.
 135  *
 136  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
 137  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
 138  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
 139  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
 140  * OTHERWISE.
 141  */
 142
 143 #ifndef HEADER_SSL_LOCL_H
 144 #define HEADER_SSL_LOCL_H
 145 #include <stdlib.h>
 146 #include <time.h>
 147 #include <string.h>
 148 #include <errno.h>
 149
 150 #include "e_os.h"
 151
 152 #include <openssl/buffer.h>
 153 #ifndef OPENSSL_NO_COMP
 154 #include <openssl/comp.h>
 155 #endif
 156 #include <openssl/bio.h>
 157 #include <openssl/stack.h>
 158 #ifndef OPENSSL_NO_RSA
 159 #include <openssl/rsa.h>
 160 #endif
 161 #ifndef OPENSSL_NO_DSA
 162 #include <openssl/dsa.h>
 163 #endif
 164 #include <openssl/err.h>
 165 #include <openssl/ssl.h>
 166 #include <openssl/symhacks.h>
 167
 168 #ifdef OPENSSL_BUILD_SHLIBSSL
 169 # undef OPENSSL_EXTERN
 170 # define OPENSSL_EXTERN OPENSSL_EXPORT
 171 #endif
 172
 173 #undef PKCS1_CHECK
 174
 175 #define c2l(c,l)        (l = ((unsigned long)(*((c)++)))     , \
 176                          l|=(((unsigned long)(*((c)++)))<< 8), \
 177                          l|=(((unsigned long)(*((c)++)))<<16), \
 178                          l|=(((unsigned long)(*((c)++)))<<24))
 179
 180 /* NOTE - c is not incremented as per c2l */
 181 #define c2ln(c,l1,l2,n) { \
 182                         c+=n; \
 183                         l1=l2=0; \
 184                         switch (n) { \
 185                         case 8: l2 =((unsigned long)(*(--(c))))<<24; \
 186                         case 7: l2|=((unsigned long)(*(--(c))))<<16; \
 187                         case 6: l2|=((unsigned long)(*(--(c))))<< 8; \
 188                         case 5: l2|=((unsigned long)(*(--(c))));     \
 189                         case 4: l1 =((unsigned long)(*(--(c))))<<24; \
 190                         case 3: l1|=((unsigned long)(*(--(c))))<<16; \
 191                         case 2: l1|=((unsigned long)(*(--(c))))<< 8; \
 192                         case 1: l1|=((unsigned long)(*(--(c))));     \
 193                                 } \
 194                         }
 195
 196 #define l2c(l,c)        (*((c)++)=(unsigned char)(((l)    )&0xff), \
 197                          *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
 198                          *((c)++)=(unsigned char)(((l)>>16)&0xff), \
 199                          *((c)++)=(unsigned char)(((l)>>24)&0xff))
 200
 201 #define n2l(c,l)        (l =((unsigned long)(*((c)++)))<<24, \
 202                          l|=((unsigned long)(*((c)++)))<<16, \
 203                          l|=((unsigned long)(*((c)++)))<< 8, \
 204                          l|=((unsigned long)(*((c)++))))
 205
 206 #define l2n(l,c)        (*((c)++)=(unsigned char)(((l)>>24)&0xff), \
 207                          *((c)++)=(unsigned char)(((l)>>16)&0xff), \
 208                          *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
 209                          *((c)++)=(unsigned char)(((l)    )&0xff))
 210
 211 #define l2n6(l,c)       (*((c)++)=(unsigned char)(((l)>>40)&0xff), \
 212                          *((c)++)=(unsigned char)(((l)>>32)&0xff), \
 213                          *((c)++)=(unsigned char)(((l)>>24)&0xff), \
 214                          *((c)++)=(unsigned char)(((l)>>16)&0xff), \
 215                          *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
 216                          *((c)++)=(unsigned char)(((l)    )&0xff))
 217
 218 #define l2n8(l,c)       (*((c)++)=(unsigned char)(((l)>>56)&0xff), \
 219                          *((c)++)=(unsigned char)(((l)>>48)&0xff), \
 220                          *((c)++)=(unsigned char)(((l)>>40)&0xff), \
 221                          *((c)++)=(unsigned char)(((l)>>32)&0xff), \
 222                          *((c)++)=(unsigned char)(((l)>>24)&0xff), \
 223                          *((c)++)=(unsigned char)(((l)>>16)&0xff), \
 224                          *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
 225                          *((c)++)=(unsigned char)(((l)    )&0xff))
 226
 227 #define n2l6(c,l)       (l =((BN_ULLONG)(*((c)++)))<<40, \
 228                          l|=((BN_ULLONG)(*((c)++)))<<32, \
 229                          l|=((BN_ULLONG)(*((c)++)))<<24, \
 230                          l|=((BN_ULLONG)(*((c)++)))<<16, \
 231                          l|=((BN_ULLONG)(*((c)++)))<< 8, \
 232                          l|=((BN_ULLONG)(*((c)++))))
 233
 234 /* NOTE - c is not incremented as per l2c */
 235 #define l2cn(l1,l2,c,n) { \
 236                         c+=n; \
 237                         switch (n) { \
 238                         case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
 239                         case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
 240                         case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
 241                         case 5: *(--(c))=(unsigned char)(((l2)    )&0xff); \
 242                         case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
 243                         case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
 244                         case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
 245                         case 1: *(--(c))=(unsigned char)(((l1)    )&0xff); \
 246                                 } \
 247                         }
 248
 249 #define n2s(c,s)        ((s=(((unsigned int)(c[0]))<< 8)| \
 250                             (((unsigned int)(c[1]))    )),c+=2)
 251 #define s2n(s,c)        ((c[0]=(unsigned char)(((s)>> 8)&0xff), \
 252                           c[1]=(unsigned char)(((s)    )&0xff)),c+=2)
 253
 254 #define n2l3(c,l)       ((l =(((unsigned long)(c[0]))<<16)| \
 255                              (((unsigned long)(c[1]))<< 8)| \
 256                              (((unsigned long)(c[2]))    )),c+=3)
 257
 258 #define l2n3(l,c)       ((c[0]=(unsigned char)(((l)>>16)&0xff), \
 259                           c[1]=(unsigned char)(((l)>> 8)&0xff), \
 260                           c[2]=(unsigned char)(((l)    )&0xff)),c+=3)
 261
 262 /* LOCAL STUFF */
 263
 264 #define SSL_DECRYPT     0
 265 #define SSL_ENCRYPT     1
 266
 267 #define TWO_BYTE_BIT    0x80
 268 #define SEC_ESC_BIT     0x40
 269 #define TWO_BYTE_MASK   0x7fff
 270 #define THREE_BYTE_MASK 0x3fff
 271
 272 #define INC32(a)        ((a)=((a)+1)&0xffffffffL)
 273 #define DEC32(a)        ((a)=((a)-1)&0xffffffffL)
 274 #define MAX_MAC_SIZE    20 /* up from 16 for SSLv3 */
 275
 276 /*
 277  * Define the Bitmasks for SSL_CIPHER.algorithms.
 278  * This bits are used packed as dense as possible. If new methods/ciphers
 279  * etc will be added, the bits a likely to change, so this information
 280  * is for internal library use only, even though SSL_CIPHER.algorithms
 281  * can be publicly accessed.
 282  * Use the according functions for cipher management instead.
 283  *
 284  * The bit mask handling in the selection and sorting scheme in
 285  * ssl_create_cipher_list() has only limited capabilities, reflecting
 286  * that the different entities within are mutually exclusive:
 287  * ONLY ONE BIT PER MASK CAN BE SET AT A TIME.
 288  */
 289
 290 /* Bits for algorithm_mkey (key exchange algorithm) */
 291 #define SSL_kRSA                0x00000001L /* RSA key exchange */
 292 #define SSL_kDHr                0x00000002L /* DH cert, RSA CA cert */
 293 #define SSL_kDHd                0x00000004L /* DH cert, DSA CA cert */
 294 #define SSL_kDHE                0x00000008L /* tmp DH key no DH cert */
 295 #define SSL_kEDH                SSL_kDHE    /* synonym */
 296 #define SSL_kKRB5               0x00000010L /* Kerberos5 key exchange */
 297 #define SSL_kECDHr              0x00000020L /* ECDH cert, RSA CA cert */
 298 #define SSL_kECDHe              0x00000040L /* ECDH cert, ECDSA CA cert */
 299 #define SSL_kECDHE              0x00000080L /* ephemeral ECDH */
 300 #define SSL_kEECDH              SSL_kECDHE  /* synonym */
 301 #define SSL_kPSK                0x00000100L /* PSK */
 302 #define SSL_kGOST       0x00000200L /* GOST key exchange */
 303 #define SSL_kSRP        0x00000400L /* SRP */
 304
 305 /* Bits for algorithm_auth (server authentication) */
 306 #define SSL_aRSA                0x00000001L /* RSA auth */
 307 #define SSL_aDSS                0x00000002L /* DSS auth */
 308 #define SSL_aNULL               0x00000004L /* no auth (i.e. use ADH or AECDH) */
 309 #define SSL_aDH                 0x00000008L /* Fixed DH auth (kDHd or kDHr) */
 310 #define SSL_aECDH               0x00000010L /* Fixed ECDH auth (kECDHe or kECDHr) */
 311 #define SSL_aKRB5               0x00000020L /* KRB5 auth */
 312 #define SSL_aECDSA              0x00000040L /* ECDSA auth*/
 313 #define SSL_aPSK                0x00000080L /* PSK auth */
 314 #define SSL_aGOST94                             0x00000100L /* GOST R 34.10-94 signature auth */
 315 #define SSL_aGOST01                     0x00000200L /* GOST R 34.10-2001 signature auth */
 316 #define SSL_aSRP                0x00000400L /* SRP auth */
 317
 318
 319 /* Bits for algorithm_enc (symmetric encryption) */
 320 #define SSL_DES                 0x00000001L
 321 #define SSL_3DES                0x00000002L
 322 #define SSL_RC4                 0x00000004L
 323 #define SSL_RC2                 0x00000008L
 324 #define SSL_IDEA                0x00000010L
 325 #define SSL_eNULL               0x00000020L
 326 #define SSL_AES128              0x00000040L
 327 #define SSL_AES256              0x00000080L
 328 #define SSL_CAMELLIA128         0x00000100L
 329 #define SSL_CAMELLIA256         0x00000200L
 330 #define SSL_eGOST2814789CNT     0x00000400L
 331 #define SSL_SEED                0x00000800L
 332 #define SSL_AES128GCM           0x00001000L
 333 #define SSL_AES256GCM           0x00002000L
 334
 335 #define SSL_AES                 (SSL_AES128|SSL_AES256|SSL_AES128GCM|SSL_AES256GCM)
 336 #define SSL_CAMELLIA            (SSL_CAMELLIA128|SSL_CAMELLIA256)
 337
 338
 339 /* Bits for algorithm_mac (symmetric authentication) */
 340
 341 #define SSL_MD5                 0x00000001L
 342 #define SSL_SHA1                0x00000002L
 343 #define SSL_GOST94      0x00000004L
 344 #define SSL_GOST89MAC   0x00000008L
 345 #define SSL_SHA256              0x00000010L
 346 #define SSL_SHA384              0x00000020L
 347 /* Not a real MAC, just an indication it is part of cipher */
 348 #define SSL_AEAD                0x00000040L
 349
 350 /* Bits for algorithm_ssl (protocol version) */
 351 #define SSL_SSLV2               0x00000001L
 352 #define SSL_SSLV3               0x00000002L
 353 #define SSL_TLSV1               SSL_SSLV3       /* for now */
 354 #define SSL_TLSV1_2             0x00000004L
 355
 356
 357 /* Bits for algorithm2 (handshake digests and other extra flags) */
 358
 359 #define SSL_HANDSHAKE_MAC_MD5 0x10
 360 #define SSL_HANDSHAKE_MAC_SHA 0x20
 361 #define SSL_HANDSHAKE_MAC_GOST94 0x40
 362 #define SSL_HANDSHAKE_MAC_SHA256 0x80
 363 #define SSL_HANDSHAKE_MAC_SHA384 0x100
 364 #define SSL_HANDSHAKE_MAC_DEFAULT (SSL_HANDSHAKE_MAC_MD5 | SSL_HANDSHAKE_MAC_SHA)
 365
 366 /* When adding new digest in the ssl_ciph.c and increment SSM_MD_NUM_IDX
 367  * make sure to update this constant too */
 368 #define SSL_MAX_DIGEST 6
 369
 370 #define TLS1_PRF_DGST_SHIFT 10
 371 #define TLS1_PRF_MD5 (SSL_HANDSHAKE_MAC_MD5 << TLS1_PRF_DGST_SHIFT)
 372 #define TLS1_PRF_SHA1 (SSL_HANDSHAKE_MAC_SHA << TLS1_PRF_DGST_SHIFT)
 373 #define TLS1_PRF_SHA256 (SSL_HANDSHAKE_MAC_SHA256 << TLS1_PRF_DGST_SHIFT)
 374 #define TLS1_PRF_SHA384 (SSL_HANDSHAKE_MAC_SHA384 << TLS1_PRF_DGST_SHIFT)
 375 #define TLS1_PRF_GOST94 (SSL_HANDSHAKE_MAC_GOST94 << TLS1_PRF_DGST_SHIFT)
 376 #define TLS1_PRF (TLS1_PRF_MD5 | TLS1_PRF_SHA1)
 377
 378 /* Stream MAC for GOST ciphersuites from cryptopro draft
 379  * (currently this also goes into algorithm2) */
 380 #define TLS1_STREAM_MAC 0x04
 381
 382
 383
 384 /*
 385  * Export and cipher strength information. For each cipher we have to decide
 386  * whether it is exportable or not. This information is likely to change
 387  * over time, since the export control rules are no static technical issue.
 388  *
 389  * Independent of the export flag the cipher strength is sorted into classes.
 390  * SSL_EXP40 was denoting the 40bit US export limit of past times, which now
 391  * is at 56bit (SSL_EXP56). If the exportable cipher class is going to change
 392  * again (eg. to 64bit) the use of "SSL_EXP*" becomes blurred even more,
 393  * since SSL_EXP64 could be similar to SSL_LOW.
 394  * For this reason SSL_MICRO and SSL_MINI macros are included to widen the
 395  * namespace of SSL_LOW-SSL_HIGH to lower values. As development of speed
 396  * and ciphers goes, another extension to SSL_SUPER and/or SSL_ULTRA would
 397  * be possible.
 398  */
 399 #define SSL_EXP_MASK            0x00000003L
 400 #define SSL_STRONG_MASK         0x000001fcL
 401
 402 #define SSL_NOT_EXP             0x00000001L
 403 #define SSL_EXPORT              0x00000002L
 404
 405 #define SSL_STRONG_NONE         0x00000004L
 406 #define SSL_EXP40               0x00000008L
 407 #define SSL_MICRO               (SSL_EXP40)
 408 #define SSL_EXP56               0x00000010L
 409 #define SSL_MINI                (SSL_EXP56)
 410 #define SSL_LOW                 0x00000020L
 411 #define SSL_MEDIUM              0x00000040L
 412 #define SSL_HIGH                0x00000080L
 413 #define SSL_FIPS                0x00000100L
 414
 415 /* we have used 000001ff - 23 bits left to go */
 416
 417 /*
 418  * Macros to check the export status and cipher strength for export ciphers.
 419  * Even though the macros for EXPORT and EXPORT40/56 have similar names,
 420  * their meaning is different:
 421  * *_EXPORT macros check the 'exportable' status.
 422  * *_EXPORT40/56 macros are used to check whether a certain cipher strength
 423  *          is given.
 424  * Since the SSL_IS_EXPORT* and SSL_EXPORT* macros depend on the correct
 425  * algorithm structure element to be passed (algorithms, algo_strength) and no
 426  * typechecking can be done as they are all of type unsigned long, their
 427  * direct usage is discouraged.
 428  * Use the SSL_C_* macros instead.
 429  */
 430 #define SSL_IS_EXPORT(a)        ((a)&SSL_EXPORT)
 431 #define SSL_IS_EXPORT56(a)      ((a)&SSL_EXP56)
 432 #define SSL_IS_EXPORT40(a)      ((a)&SSL_EXP40)
 433 #define SSL_C_IS_EXPORT(c)      SSL_IS_EXPORT((c)->algo_strength)
 434 #define SSL_C_IS_EXPORT56(c)    SSL_IS_EXPORT56((c)->algo_strength)
 435 #define SSL_C_IS_EXPORT40(c)    SSL_IS_EXPORT40((c)->algo_strength)
 436
 437 #define SSL_EXPORT_KEYLENGTH(a,s)       (SSL_IS_EXPORT40(s) ? 5 : \
 438                                  (a) == SSL_DES ? 8 : 7)
 439 #define SSL_EXPORT_PKEYLENGTH(a) (SSL_IS_EXPORT40(a) ? 512 : 1024)
 440 #define SSL_C_EXPORT_KEYLENGTH(c)       SSL_EXPORT_KEYLENGTH((c)->algorithm_enc, \
 441                                 (c)->algo_strength)
 442 #define SSL_C_EXPORT_PKEYLENGTH(c)      SSL_EXPORT_PKEYLENGTH((c)->algo_strength)
 443
 444 /* Check if an SSL structure is using DTLS */
 445 #define SSL_IS_DTLS(s)  (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
 446 /* See if we need explicit IV */
 447 #define SSL_USE_EXPLICIT_IV(s)  \
 448                 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV)
 449 /* See if we use signature algorithms extension
 450  * and signature algorithm before signatures.
 451  */
 452 #define SSL_USE_SIGALGS(s)      \
 453                         (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS)
 454 /* Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2:
 455  * may apply to others in future.
 456  */
 457 #define SSL_USE_TLS1_2_CIPHERS(s)       \
 458                 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)
 459 /* Determine if a client can use TLS 1.2 ciphersuites: can't rely on method
 460  * flags because it may not be set to correct version yet.
 461  */
 462 #define SSL_CLIENT_USE_TLS1_2_CIPHERS(s)        \
 463                 ((SSL_IS_DTLS(s) && s->client_version <= DTLS1_2_VERSION) || \
 464                 (!SSL_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION))
 465
 466 #ifdef TLSEXT_TYPE_encrypt_then_mac
 467 #define SSL_USE_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC)
 468 #else
 469 #define SSL_USE_ETM(s) (0)
 470 #endif
 471
 472 /* Mostly for SSLv3 */
 473 #define SSL_PKEY_RSA_ENC        0
 474 #define SSL_PKEY_RSA_SIGN       1
 475 #define SSL_PKEY_DSA_SIGN       2
 476 #define SSL_PKEY_DH_RSA         3
 477 #define SSL_PKEY_DH_DSA         4
 478 #define SSL_PKEY_ECC            5
 479 #define SSL_PKEY_GOST94         6
 480 #define SSL_PKEY_GOST01         7
 481 #define SSL_PKEY_NUM            8
 482
 483 /* SSL_kRSA <- RSA_ENC | (RSA_TMP & RSA_SIGN) |
 484  *          <- (EXPORT & (RSA_ENC | RSA_TMP) & RSA_SIGN)
 485  * SSL_kDH  <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
 486  * SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN
 487  * SSL_aRSA <- RSA_ENC | RSA_SIGN
 488  * SSL_aDSS <- DSA_SIGN
 489  */
 490
 491 /*
 492 #define CERT_INVALID            0
 493 #define CERT_PUBLIC_KEY         1
 494 #define CERT_PRIVATE_KEY        2
 495 */
 496
 497 #ifndef OPENSSL_NO_EC
 498 /* From ECC-TLS draft, used in encoding the curve type in
 499  * ECParameters
 500  */
 501 #define EXPLICIT_PRIME_CURVE_TYPE  1
 502 #define EXPLICIT_CHAR2_CURVE_TYPE  2
 503 #define NAMED_CURVE_TYPE           3
 504 #endif  /* OPENSSL_NO_EC */
 505
 506 typedef struct cert_pkey_st
 507         {
 508         X509 *x509;
 509         EVP_PKEY *privatekey;
 510         /* Digest to use when signing */
 511         const EVP_MD *digest;
 512         /* Chain for this certificate */
 513         STACK_OF(X509) *chain;
 514 #ifndef OPENSSL_NO_TLSEXT
 515         /* serverinfo data for this certificate.  The data is in TLS Extension
 516          * wire format, specifically it's a series of records like:
 517          *   uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension)
 518          *   uint16_t length;
 519          *   uint8_t data[length]; */
 520         unsigned char *serverinfo;
 521         size_t serverinfo_length;
 522 #endif
 523         /* Set if CERT_PKEY can be used with current SSL session: e.g.
 524          * appropriate curve, signature algorithms etc. If zero it can't be
 525          * used at all.
 526          */
 527         int valid_flags;
 528         } CERT_PKEY;
 529 /* Retrieve Suite B flags */
 530 #define tls1_suiteb(s)  (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS)
 531 /* Uses to check strict mode: suite B modes are always strict */
 532 #define SSL_CERT_FLAGS_CHECK_TLS_STRICT \
 533         (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT)
 534
 535 typedef struct {
 536         unsigned short ext_type;
 537         /* Per-connection flags relating to this extension type: not used
 538          * if part of an SSL_CTX structure.
 539          */
 540         unsigned short ext_flags;
 541         custom_ext_add_cb add_cb;
 542         custom_ext_free_cb free_cb;
 543         void *add_arg;
 544         custom_ext_parse_cb parse_cb;
 545         void *parse_arg;
 546 } custom_ext_method;
 547
 548 /* ext_flags values */
 549
 550 /* Indicates an extension has been received.
 551  * Used to check for unsolicited or duplicate extensions.
 552  */
 553 #define SSL_EXT_FLAG_RECEIVED   0x1
 554 /* Indicates an extension has been sent: used to
 555  * enable sending of corresponding ServerHello extension.
 556  */
 557 #define SSL_EXT_FLAG_SENT       0x2
 558
 559 typedef struct {
 560         custom_ext_method *meths;
 561         size_t meths_count;
 562 } custom_ext_methods;
 563
 564 typedef struct cert_st
 565         {
 566         /* Current active set */
 567         CERT_PKEY *key; /* ALWAYS points to an element of the pkeys array
 568                          * Probably it would make more sense to store
 569                          * an index, not a pointer. */
 570
 571         /* For servers the following masks are for the key and auth
 572          * algorithms that are supported by the certs below.
 573          * For clients they are masks of *disabled* algorithms based
 574          * on the current session.
 575          */
 576         int valid;
 577         unsigned long mask_k;
 578         unsigned long mask_a;
 579         unsigned long export_mask_k;
 580         unsigned long export_mask_a;
 581         /* Client only */
 582         unsigned long mask_ssl;
 583 #ifndef OPENSSL_NO_RSA
 584         RSA *rsa_tmp;
 585         RSA *(*rsa_tmp_cb)(SSL *ssl,int is_export,int keysize);
 586 #endif
 587 #ifndef OPENSSL_NO_DH
 588         DH *dh_tmp;
 589         DH *(*dh_tmp_cb)(SSL *ssl,int is_export,int keysize);
 590         int dh_tmp_auto;
 591 #endif
 592 #ifndef OPENSSL_NO_ECDH
 593         EC_KEY *ecdh_tmp;
 594         /* Callback for generating ephemeral ECDH keys */
 595         EC_KEY *(*ecdh_tmp_cb)(SSL *ssl,int is_export,int keysize);
 596         /* Select ECDH parameters automatically */
 597         int ecdh_tmp_auto;
 598 #endif
 599         /* Flags related to certificates */
 600         unsigned int cert_flags;
 601         CERT_PKEY pkeys[SSL_PKEY_NUM];
 602
 603         /* Certificate types (received or sent) in certificate request
 604          * message. On receive this is only set if number of certificate
 605          * types exceeds SSL3_CT_NUMBER.
 606          */
 607         unsigned char *ctypes;
 608         size_t ctype_num;
 609
 610         /* signature algorithms peer reports: e.g. supported signature
 611          * algorithms extension for server or as part of a certificate
 612          * request for client.
 613          */
 614         unsigned char *peer_sigalgs;
 615         /* Size of above array */
 616         size_t peer_sigalgslen;
 617         /* suppported signature algorithms.
 618          * When set on a client this is sent in the client hello as the
 619          * supported signature algorithms extension. For servers
 620          * it represents the signature algorithms we are willing to use.
 621          */
 622         unsigned char *conf_sigalgs;
 623         /* Size of above array */
 624         size_t conf_sigalgslen;
 625         /* Client authentication signature algorithms, if not set then
 626          * uses conf_sigalgs. On servers these will be the signature
 627          * algorithms sent to the client in a cerificate request for TLS 1.2.
 628          * On a client this represents the signature algortithms we are
 629          * willing to use for client authentication.
 630          */
 631         unsigned char *client_sigalgs;
 632         /* Size of above array */
 633         size_t client_sigalgslen;
 634         /* Signature algorithms shared by client and server: cached
 635          * because these are used most often.
 636          */
 637         TLS_SIGALGS *shared_sigalgs;
 638         size_t shared_sigalgslen;
 639
 640         /* Certificate setup callback: if set is called whenever a
 641          * certificate may be required (client or server). the callback
 642          * can then examine any appropriate parameters and setup any
 643          * certificates required. This allows advanced applications
 644          * to select certificates on the fly: for example based on
 645          * supported signature algorithms or curves.
 646          */
 647         int (*cert_cb)(SSL *ssl, void *arg);
 648         void *cert_cb_arg;
 649
 650         /* Optional X509_STORE for chain building or certificate validation
 651          * If NULL the parent SSL_CTX store is used instead.
 652          */
 653         X509_STORE *chain_store;
 654         X509_STORE *verify_store;
 655
 656         /* Raw values of the cipher list from a client */
 657         unsigned char *ciphers_raw;
 658         size_t ciphers_rawlen;
 659
 660         /* Custom extension methods for server and client */
 661         custom_ext_methods cli_ext;
 662         custom_ext_methods srv_ext;
 663         /* Security callback */
 664         int (*sec_cb)(SSL *s, SSL_CTX *ctx, int op, int bits, int nid, void *other, void *ex);
 665         /* Security level */
 666         int sec_level;
 667
 668         void *sec_ex;
 669
 670         int references; /* >1 only if SSL_copy_session_id is used */
 671         } CERT;
 672
 673
 674 typedef struct sess_cert_st
 675         {
 676         STACK_OF(X509) *cert_chain; /* as received from peer (not for SSL2) */
 677
 678         /* The 'peer_...' members are used only by clients. */
 679         int peer_cert_type;
 680
 681         CERT_PKEY *peer_key; /* points to an element of peer_pkeys (never NULL!) */
 682         CERT_PKEY peer_pkeys[SSL_PKEY_NUM];
 683         /* Obviously we don't have the private keys of these,
 684          * so maybe we shouldn't even use the CERT_PKEY type here. */
 685
 686 #ifndef OPENSSL_NO_RSA
 687         RSA *peer_rsa_tmp; /* not used for SSL 2 */
 688 #endif
 689 #ifndef OPENSSL_NO_DH
 690         DH *peer_dh_tmp; /* not used for SSL 2 */
 691 #endif
 692 #ifndef OPENSSL_NO_ECDH
 693         EC_KEY *peer_ecdh_tmp;
 694 #endif
 695
 696         int references; /* actually always 1 at the moment */
 697         } SESS_CERT;
 698 /* Structure containing decoded values of signature algorithms extension */
 699 struct tls_sigalgs_st
 700         {
 701         /* NID of hash algorithm */
 702         int hash_nid;
 703         /* NID of signature algorithm */
 704         int sign_nid;
 705         /* Combined hash and signature NID */
 706         int signandhash_nid;
 707         /* Raw values used in extension */
 708         unsigned char rsign;
 709         unsigned char rhash;
 710         };
 711
 712 /*#define MAC_DEBUG     */
 713
 714 /*#define ERR_DEBUG     */
 715 /*#define ABORT_DEBUG   */
 716 /*#define PKT_DEBUG 1   */
 717 /*#define DES_DEBUG     */
 718 /*#define DES_OFB_DEBUG */
 719 /*#define SSL_DEBUG     */
 720 /*#define RSA_DEBUG     */
 721 /*#define IDEA_DEBUG    */
 722
 723 #define FP_ICC  (int (*)(const void *,const void *))
 724 #define ssl_put_cipher_by_char(ssl,ciph,ptr) \
 725                 ((ssl)->method->put_cipher_by_char((ciph),(ptr)))
 726
 727 /* This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff
 728  * It is a bit of a mess of functions, but hell, think of it as
 729  * an opaque structure :-) */
 730 typedef struct ssl3_enc_method
 731         {
 732         int (*enc)(SSL *, int);
 733         int (*mac)(SSL *, unsigned char *, int);
 734         int (*setup_key_block)(SSL *);
 735         int (*generate_master_secret)(SSL *, unsigned char *, unsigned char *, int);
 736         int (*change_cipher_state)(SSL *, int);
 737         int (*final_finish_mac)(SSL *,  const char *, int, unsigned char *);
 738         int finish_mac_length;
 739         int (*cert_verify_mac)(SSL *, int, unsigned char *);
 740         const char *client_finished_label;
 741         int client_finished_label_len;
 742         const char *server_finished_label;
 743         int server_finished_label_len;
 744         int (*alert_value)(int);
 745         int (*export_keying_material)(SSL *, unsigned char *, size_t,
 746                                       const char *, size_t,
 747                                       const unsigned char *, size_t,
 748                                       int use_context);
 749         /* Various flags indicating protocol version requirements */
 750         unsigned int enc_flags;
 751         /* Handshake header length */
 752         unsigned int hhlen;
 753         /* Set the handshake header */
 754         void (*set_handshake_header)(SSL *s, int type, unsigned long len);
 755         /* Write out handshake message */
 756         int (*do_write)(SSL *s);
 757         } SSL3_ENC_METHOD;
 758
 759 #define SSL_HM_HEADER_LENGTH(s) s->method->ssl3_enc->hhlen
 760 #define ssl_handshake_start(s) \
 761         (((unsigned char *)s->init_buf->data) + s->method->ssl3_enc->hhlen)
 762 #define ssl_set_handshake_header(s, htype, len) \
 763         s->method->ssl3_enc->set_handshake_header(s, htype, len)
 764 #define ssl_do_write(s)  s->method->ssl3_enc->do_write(s)
 765
 766 /* Values for enc_flags */
 767
 768 /* Uses explicit IV for CBC mode */
 769 #define SSL_ENC_FLAG_EXPLICIT_IV        0x1
 770 /* Uses signature algorithms extension */
 771 #define SSL_ENC_FLAG_SIGALGS            0x2
 772 /* Uses SHA256 default PRF */
 773 #define SSL_ENC_FLAG_SHA256_PRF         0x4
 774 /* Is DTLS */
 775 #define SSL_ENC_FLAG_DTLS               0x8
 776 /* Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2:
 777  * may apply to others in future.
 778  */
 779 #define SSL_ENC_FLAG_TLS1_2_CIPHERS     0x10
 780
 781 #ifndef OPENSSL_NO_COMP
 782 /* Used for holding the relevant compression methods loaded into SSL_CTX */
 783 typedef struct ssl3_comp_st
 784         {
 785         int comp_id;    /* The identifier byte for this compression type */
 786         char *name;     /* Text name used for the compression type */
 787         COMP_METHOD *method; /* The method :-) */
 788         } SSL3_COMP;
 789 #endif
 790
 791 #ifndef OPENSSL_NO_BUF_FREELISTS
 792 typedef struct ssl3_buf_freelist_st
 793         {
 794         size_t chunklen;
 795         unsigned int len;
 796         struct ssl3_buf_freelist_entry_st *head;
 797         } SSL3_BUF_FREELIST;
 798
 799 typedef struct ssl3_buf_freelist_entry_st
 800         {
 801         struct ssl3_buf_freelist_entry_st *next;
 802         } SSL3_BUF_FREELIST_ENTRY;
 803 #endif
 804
 805 extern SSL3_ENC_METHOD ssl3_undef_enc_method;
 806 OPENSSL_EXTERN const SSL_CIPHER ssl2_ciphers[];
 807 OPENSSL_EXTERN const SSL_CIPHER ssl3_ciphers[];
 808
 809
 810 SSL_METHOD *ssl_bad_method(int ver);
 811
 812 extern const SSL3_ENC_METHOD TLSv1_enc_data;
 813 extern const SSL3_ENC_METHOD TLSv1_1_enc_data;
 814 extern const SSL3_ENC_METHOD TLSv1_2_enc_data;
 815 extern const SSL3_ENC_METHOD SSLv3_enc_data;
 816 extern const SSL3_ENC_METHOD DTLSv1_enc_data;
 817 extern const SSL3_ENC_METHOD DTLSv1_2_enc_data;
 818
 819 #define IMPLEMENT_tls_meth_func(version, func_name, s_accept, s_connect, \
 820                                 s_get_meth, enc_data) \
 821 const SSL_METHOD *func_name(void)  \
 822         { \
 823         static const SSL_METHOD func_name##_data= { \
 824                 version, \
 825                 tls1_new, \
 826                 tls1_clear, \
 827                 tls1_free, \
 828                 s_accept, \
 829                 s_connect, \
 830                 ssl3_read, \
 831                 ssl3_peek, \
 832                 ssl3_write, \
 833                 ssl3_shutdown, \
 834                 ssl3_renegotiate, \
 835                 ssl3_renegotiate_check, \
 836                 ssl3_get_message, \
 837                 ssl3_read_bytes, \
 838                 ssl3_write_bytes, \
 839                 ssl3_dispatch_alert, \
 840                 ssl3_ctrl, \
 841                 ssl3_ctx_ctrl, \
 842                 ssl3_get_cipher_by_char, \
 843                 ssl3_put_cipher_by_char, \
 844                 ssl3_pending, \
 845                 ssl3_num_ciphers, \
 846                 ssl3_get_cipher, \
 847                 s_get_meth, \
 848                 tls1_default_timeout, \
 849                 &enc_data, \
 850                 ssl_undefined_void_function, \
 851                 ssl3_callback_ctrl, \
 852                 ssl3_ctx_callback_ctrl, \
 853         }; \
 854         return &func_name##_data; \
 855         }
 856
 857 #define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect, s_get_meth) \
 858 const SSL_METHOD *func_name(void)  \
 859         { \
 860         static const SSL_METHOD func_name##_data= { \
 861                 SSL3_VERSION, \
 862                 ssl3_new, \
 863                 ssl3_clear, \
 864                 ssl3_free, \
 865                 s_accept, \
 866                 s_connect, \
 867                 ssl3_read, \
 868                 ssl3_peek, \
 869                 ssl3_write, \
 870                 ssl3_shutdown, \
 871                 ssl3_renegotiate, \
 872                 ssl3_renegotiate_check, \
 873                 ssl3_get_message, \
 874                 ssl3_read_bytes, \
 875                 ssl3_write_bytes, \
 876                 ssl3_dispatch_alert, \
 877                 ssl3_ctrl, \
 878                 ssl3_ctx_ctrl, \
 879                 ssl3_get_cipher_by_char, \
 880                 ssl3_put_cipher_by_char, \
 881                 ssl3_pending, \
 882                 ssl3_num_ciphers, \
 883                 ssl3_get_cipher, \
 884                 s_get_meth, \
 885                 ssl3_default_timeout, \
 886                 &SSLv3_enc_data, \
 887                 ssl_undefined_void_function, \
 888                 ssl3_callback_ctrl, \
 889                 ssl3_ctx_callback_ctrl, \
 890         }; \
 891         return &func_name##_data; \
 892         }
 893
 894 #define IMPLEMENT_ssl23_meth_func(func_name, s_accept, s_connect, s_get_meth) \
 895 const SSL_METHOD *func_name(void)  \
 896         { \
 897         static const SSL_METHOD func_name##_data= { \
 898         TLS1_2_VERSION, \
 899         tls1_new, \
 900         tls1_clear, \
 901         tls1_free, \
 902         s_accept, \
 903         s_connect, \
 904         ssl23_read, \
 905         ssl23_peek, \
 906         ssl23_write, \
 907         ssl_undefined_function, \
 908         ssl_undefined_function, \
 909         ssl_ok, \
 910         ssl3_get_message, \
 911         ssl3_read_bytes, \
 912         ssl3_write_bytes, \
 913         ssl3_dispatch_alert, \
 914         ssl3_ctrl, \
 915         ssl3_ctx_ctrl, \
 916         ssl23_get_cipher_by_char, \
 917         ssl23_put_cipher_by_char, \
 918         ssl_undefined_const_function, \
 919         ssl23_num_ciphers, \
 920         ssl23_get_cipher, \
 921         s_get_meth, \
 922         ssl23_default_timeout, \
 923         &TLSv1_2_enc_data, \
 924         ssl_undefined_void_function, \
 925         ssl3_callback_ctrl, \
 926         ssl3_ctx_callback_ctrl, \
 927         }; \
 928         return &func_name##_data; \
 929         }
 930
 931 #define IMPLEMENT_ssl2_meth_func(func_name, s_accept, s_connect, s_get_meth) \
 932 const SSL_METHOD *func_name(void)  \
 933         { \
 934         static const SSL_METHOD func_name##_data= { \
 935                 SSL2_VERSION, \
 936                 ssl2_new,       /* local */ \
 937                 ssl2_clear,     /* local */ \
 938                 ssl2_free,      /* local */ \
 939                 s_accept, \
 940                 s_connect, \
 941                 ssl2_read, \
 942                 ssl2_peek, \
 943                 ssl2_write, \
 944                 ssl2_shutdown, \
 945                 ssl_ok, /* NULL - renegotiate */ \
 946                 ssl_ok, /* NULL - check renegotiate */ \
 947                 NULL, /* NULL - ssl_get_message */ \
 948                 NULL, /* NULL - ssl_get_record */ \
 949                 NULL, /* NULL - ssl_write_bytes */ \
 950                 NULL, /* NULL - dispatch_alert */ \
 951                 ssl2_ctrl,      /* local */ \
 952                 ssl2_ctx_ctrl,  /* local */ \
 953                 ssl2_get_cipher_by_char, \
 954                 ssl2_put_cipher_by_char, \
 955                 ssl2_pending, \
 956                 ssl2_num_ciphers, \
 957                 ssl2_get_cipher, \
 958                 s_get_meth, \
 959                 ssl2_default_timeout, \
 960                 &ssl3_undef_enc_method, \
 961                 ssl_undefined_void_function, \
 962                 ssl2_callback_ctrl,     /* local */ \
 963                 ssl2_ctx_callback_ctrl, /* local */ \
 964         }; \
 965         return &func_name##_data; \
 966         }
 967
 968 #define IMPLEMENT_dtls1_meth_func(version, func_name, s_accept, s_connect, \
 969                                         s_get_meth, enc_data) \
 970 const SSL_METHOD *func_name(void)  \
 971         { \
 972         static const SSL_METHOD func_name##_data= { \
 973                 version, \
 974                 dtls1_new, \
 975                 dtls1_clear, \
 976                 dtls1_free, \
 977                 s_accept, \
 978                 s_connect, \
 979                 ssl3_read, \
 980                 ssl3_peek, \
 981                 ssl3_write, \
 982                 dtls1_shutdown, \
 983                 ssl3_renegotiate, \
 984                 ssl3_renegotiate_check, \
 985                 dtls1_get_message, \
 986                 dtls1_read_bytes, \
 987                 dtls1_write_app_data_bytes, \
 988                 dtls1_dispatch_alert, \
 989                 dtls1_ctrl, \
 990                 ssl3_ctx_ctrl, \
 991                 ssl3_get_cipher_by_char, \
 992                 ssl3_put_cipher_by_char, \
 993                 ssl3_pending, \
 994                 ssl3_num_ciphers, \
 995                 dtls1_get_cipher, \
 996                 s_get_meth, \
 997                 dtls1_default_timeout, \
 998                 &enc_data, \
 999                 ssl_undefined_void_function, \
1000                 ssl3_callback_ctrl, \
1001                 ssl3_ctx_callback_ctrl, \
1002         }; \
1003         return &func_name##_data; \
1004         }
1005
1006 struct openssl_ssl_test_functions
1007         {
1008         int (*p_ssl_init_wbio_buffer)(SSL *s, int push);
1009         int (*p_ssl3_setup_buffers)(SSL *s);
1010         int (*p_tls1_process_heartbeat)(SSL *s);
1011         int (*p_dtls1_process_heartbeat)(SSL *s);
1012         };
1013
1014 #ifndef OPENSSL_UNIT_TEST
1015
1016 void ssl_clear_cipher_ctx(SSL *s);
1017 int ssl_clear_bad_session(SSL *s);
1018 CERT *ssl_cert_new(void);
1019 CERT *ssl_cert_dup(CERT *cert);
1020 void ssl_cert_set_default_md(CERT *cert);
1021 int ssl_cert_inst(CERT **o);
1022 void ssl_cert_clear_certs(CERT *c);
1023 void ssl_cert_free(CERT *c);
1024 SESS_CERT *ssl_sess_cert_new(void);
1025 void ssl_sess_cert_free(SESS_CERT *sc);
1026 int ssl_set_peer_cert_type(SESS_CERT *c, int type);
1027 int ssl_get_new_session(SSL *s, int session);
1028 int ssl_get_prev_session(SSL *s, unsigned char *session,int len, const unsigned char *limit);
1029 int ssl_cipher_id_cmp(const SSL_CIPHER *a,const SSL_CIPHER *b);
1030 DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER,
1031                                   ssl_cipher_id);
1032 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
1033                         const SSL_CIPHER * const *bp);
1034 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
1035                                                STACK_OF(SSL_CIPHER) **skp);
1036 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
1037                              int (*put_cb)(const SSL_CIPHER *, unsigned char *));
1038 STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth,
1039                                              STACK_OF(SSL_CIPHER) **pref,
1040                                              STACK_OF(SSL_CIPHER) **sorted,
1041                                              const char *rule_str, CERT *c);
1042 void ssl_update_cache(SSL *s, int mode);
1043 int ssl_cipher_get_evp(const SSL_SESSION *s,const EVP_CIPHER **enc,
1044                        const EVP_MD **md,int *mac_pkey_type,int *mac_secret_size, SSL_COMP **comp, int use_etm);
1045 int ssl_get_handshake_digest(int i,long *mask,const EVP_MD **md);
1046 int ssl_cipher_get_cert_index(const SSL_CIPHER *c);
1047 const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr);
1048 int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
1049 int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
1050 int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
1051 int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
1052 int ssl_cert_select_current(CERT *c, X509 *x);
1053 int ssl_cert_set_current(CERT *c, long arg);
1054 X509 *ssl_cert_get0_next_certificate(CERT *c, int first);
1055 void ssl_cert_set_cert_cb(CERT *c, int (*cb)(SSL *ssl, void *arg), void *arg);
1056
1057 int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk);
1058 int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l);
1059 int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags);
1060 int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref);
1061
1062 int ssl_security(SSL *s, int op, int bits, int nid, void *other);
1063 int ssl_ctx_security(SSL_CTX *ctx, int op, int bits, int nid, void *other);
1064
1065 int ssl_undefined_function(SSL *s);
1066 int ssl_undefined_void_function(void);
1067 int ssl_undefined_const_function(const SSL *s);
1068 CERT_PKEY *ssl_get_server_send_pkey(const SSL *s);
1069 #ifndef OPENSSL_NO_TLSEXT
1070 int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
1071                                    size_t *serverinfo_length);
1072 #endif
1073 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *c, const EVP_MD **pmd);
1074 int ssl_cert_type(X509 *x,EVP_PKEY *pkey);
1075 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher);
1076 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
1077 int ssl_verify_alarm_type(long type);
1078 void ssl_load_ciphers(void);
1079 int ssl_fill_hello_random(SSL *s, int server, unsigned char *field, int len);
1080
1081 int ssl2_enc_init(SSL *s, int client);
1082 int ssl2_generate_key_material(SSL *s);
1083 int ssl2_enc(SSL *s,int send_data);
1084 void ssl2_mac(SSL *s,unsigned char *mac,int send_data);
1085 const SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p);
1086 int ssl2_put_cipher_by_char(const SSL_CIPHER *c,unsigned char *p);
1087 int ssl2_part_read(SSL *s, unsigned long f, int i);
1088 int ssl2_do_write(SSL *s);
1089 int ssl2_set_certificate(SSL *s, int type, int len, const unsigned char *data);
1090 void ssl2_return_error(SSL *s,int reason);
1091 void ssl2_write_error(SSL *s);
1092 int ssl2_num_ciphers(void);
1093 const SSL_CIPHER *ssl2_get_cipher(unsigned int u);
1094 int     ssl2_new(SSL *s);
1095 void    ssl2_free(SSL *s);
1096 int     ssl2_accept(SSL *s);
1097 int     ssl2_connect(SSL *s);
1098 int     ssl2_read(SSL *s, void *buf, int len);
1099 int     ssl2_peek(SSL *s, void *buf, int len);
1100 int     ssl2_write(SSL *s, const void *buf, int len);
1101 int     ssl2_shutdown(SSL *s);
1102 void    ssl2_clear(SSL *s);
1103 long    ssl2_ctrl(SSL *s,int cmd, long larg, void *parg);
1104 long    ssl2_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg);
1105 long    ssl2_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
1106 long    ssl2_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)(void));
1107 int     ssl2_pending(const SSL *s);
1108 long    ssl2_default_timeout(void );
1109
1110 const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
1111 int ssl3_put_cipher_by_char(const SSL_CIPHER *c,unsigned char *p);
1112 void ssl3_init_finished_mac(SSL *s);
1113 int ssl3_send_server_certificate(SSL *s);
1114 int ssl3_send_newsession_ticket(SSL *s);
1115 int ssl3_send_cert_status(SSL *s);
1116 int ssl3_get_finished(SSL *s,int state_a,int state_b);
1117 int ssl3_setup_key_block(SSL *s);
1118 int ssl3_send_change_cipher_spec(SSL *s,int state_a,int state_b);
1119 int ssl3_change_cipher_state(SSL *s,int which);
1120 void ssl3_cleanup_key_block(SSL *s);
1121 int ssl3_do_write(SSL *s,int type);
1122 int ssl3_send_alert(SSL *s,int level, int desc);
1123 int ssl3_generate_master_secret(SSL *s, unsigned char *out,
1124         unsigned char *p, int len);
1125 int ssl3_get_req_cert_type(SSL *s,unsigned char *p);
1126 long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
1127 int ssl3_send_finished(SSL *s, int a, int b, const char *sender,int slen);
1128 int ssl3_num_ciphers(void);
1129 const SSL_CIPHER *ssl3_get_cipher(unsigned int u);
1130 int ssl3_renegotiate(SSL *ssl);
1131 int ssl3_renegotiate_check(SSL *ssl);
1132 int ssl3_dispatch_alert(SSL *s);
1133 int ssl3_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
1134 int ssl3_write_bytes(SSL *s, int type, const void *buf, int len);
1135 int ssl3_final_finish_mac(SSL *s, const char *sender, int slen,unsigned char *p);
1136 int ssl3_cert_verify_mac(SSL *s, int md_nid, unsigned char *p);
1137 void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len);
1138 int ssl3_enc(SSL *s, int send_data);
1139 int n_ssl3_mac(SSL *ssl, unsigned char *md, int send_data);
1140 void ssl3_free_digest_list(SSL *s);
1141 unsigned long ssl3_output_cert_chain(SSL *s, CERT_PKEY *cpk);
1142 SSL_CIPHER *ssl3_choose_cipher(SSL *ssl,STACK_OF(SSL_CIPHER) *clnt,
1143                                STACK_OF(SSL_CIPHER) *srvr);
1144 int     ssl3_setup_buffers(SSL *s);
1145 int     ssl3_setup_read_buffer(SSL *s);
1146 int     ssl3_setup_write_buffer(SSL *s);
1147 int     ssl3_release_read_buffer(SSL *s);
1148 int     ssl3_release_write_buffer(SSL *s);
1149 int     ssl3_digest_cached_records(SSL *s);
1150 int     ssl3_new(SSL *s);
1151 void    ssl3_free(SSL *s);
1152 int     ssl3_accept(SSL *s);
1153 int     ssl3_connect(SSL *s);
1154 int     ssl3_read(SSL *s, void *buf, int len);
1155 int     ssl3_peek(SSL *s, void *buf, int len);
1156 int     ssl3_write(SSL *s, const void *buf, int len);
1157 int     ssl3_shutdown(SSL *s);
1158 void    ssl3_clear(SSL *s);
1159 long    ssl3_ctrl(SSL *s,int cmd, long larg, void *parg);
1160 long    ssl3_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg);
1161 long    ssl3_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
1162 long    ssl3_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)(void));
1163 int     ssl3_pending(const SSL *s);
1164
1165 void ssl3_record_sequence_update(unsigned char *seq);
1166 int ssl3_do_change_cipher_spec(SSL *ssl);
1167 long ssl3_default_timeout(void );
1168
1169 void ssl3_set_handshake_header(SSL *s, int htype, unsigned long len);
1170 int ssl3_handshake_write(SSL *s);
1171
1172 int ssl23_num_ciphers(void );
1173 const SSL_CIPHER *ssl23_get_cipher(unsigned int u);
1174 int ssl23_read(SSL *s, void *buf, int len);
1175 int ssl23_peek(SSL *s, void *buf, int len);
1176 int ssl23_write(SSL *s, const void *buf, int len);
1177 int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
1178 const SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p);
1179 long ssl23_default_timeout(void );
1180
1181 int ssl_allow_compression(SSL *s);
1182
1183 long tls1_default_timeout(void);
1184 int dtls1_do_write(SSL *s,int type);
1185 int ssl3_read_n(SSL *s, int n, int max, int extend);
1186 int dtls1_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
1187 int ssl3_do_compress(SSL *ssl);
1188 int ssl3_do_uncompress(SSL *ssl);
1189 int ssl3_write_pending(SSL *s, int type, const unsigned char *buf,
1190         unsigned int len);
1191 unsigned char *dtls1_set_message_header(SSL *s,
1192         unsigned char *p, unsigned char mt,     unsigned long len,
1193         unsigned long frag_off, unsigned long frag_len);
1194
1195 int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len);
1196 int dtls1_write_bytes(SSL *s, int type, const void *buf, int len);
1197
1198 int dtls1_send_change_cipher_spec(SSL *s, int a, int b);
1199 int dtls1_send_finished(SSL *s, int a, int b, const char *sender, int slen);
1200 unsigned long dtls1_output_cert_chain(SSL *s, CERT_PKEY *cpk);
1201 int dtls1_read_failed(SSL *s, int code);
1202 int dtls1_buffer_message(SSL *s, int ccs);
1203 int dtls1_retransmit_message(SSL *s, unsigned short seq,
1204         unsigned long frag_off, int *found);
1205 int dtls1_get_queue_priority(unsigned short seq, int is_ccs);
1206 int dtls1_retransmit_buffered_messages(SSL *s);
1207 void dtls1_clear_record_buffer(SSL *s);
1208 void dtls1_get_message_header(unsigned char *data, struct hm_header_st *msg_hdr);
1209 void dtls1_get_ccs_header(unsigned char *data, struct ccs_header_st *ccs_hdr);
1210 void dtls1_reset_seq_numbers(SSL *s, int rw);
1211 long dtls1_default_timeout(void);
1212 struct timeval* dtls1_get_timeout(SSL *s, struct timeval* timeleft);
1213 int dtls1_check_timeout_num(SSL *s);
1214 int dtls1_handle_timeout(SSL *s);
1215 const SSL_CIPHER *dtls1_get_cipher(unsigned int u);
1216 void dtls1_start_timer(SSL *s);
1217 void dtls1_stop_timer(SSL *s);
1218 int dtls1_is_timer_expired(SSL *s);
1219 void dtls1_double_timeout(SSL *s);
1220 int dtls1_send_newsession_ticket(SSL *s);
1221 unsigned int dtls1_min_mtu(SSL *s);
1222 unsigned int dtls1_link_min_mtu(void);
1223 void dtls1_hm_fragment_free(hm_fragment *frag);
1224
1225 /* some client-only functions */
1226 int ssl3_client_hello(SSL *s);
1227 int ssl3_get_server_hello(SSL *s);
1228 int ssl3_get_certificate_request(SSL *s);
1229 int ssl3_get_new_session_ticket(SSL *s);
1230 int ssl3_get_cert_status(SSL *s);
1231 int ssl3_get_server_done(SSL *s);
1232 int ssl3_send_client_verify(SSL *s);
1233 int ssl3_send_client_certificate(SSL *s);
1234 int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey);
1235 int ssl3_send_client_key_exchange(SSL *s);
1236 int ssl3_get_key_exchange(SSL *s);
1237 int ssl3_get_server_certificate(SSL *s);
1238 int ssl3_check_cert_and_algorithm(SSL *s);
1239 #ifndef OPENSSL_NO_TLSEXT
1240 # ifndef OPENSSL_NO_NEXTPROTONEG
1241 int ssl3_send_next_proto(SSL *s);
1242 # endif
1243 #endif
1244
1245 int dtls1_client_hello(SSL *s);
1246
1247 /* some server-only functions */
1248 int ssl3_get_client_hello(SSL *s);
1249 int ssl3_send_server_hello(SSL *s);
1250 int ssl3_send_hello_request(SSL *s);
1251 int ssl3_send_server_key_exchange(SSL *s);
1252 int ssl3_send_certificate_request(SSL *s);
1253 int ssl3_send_server_done(SSL *s);
1254 int ssl3_check_client_hello(SSL *s);
1255 int ssl3_get_client_certificate(SSL *s);
1256 int ssl3_get_client_key_exchange(SSL *s);
1257 int ssl3_get_cert_verify(SSL *s);
1258 #ifndef OPENSSL_NO_NEXTPROTONEG
1259 int ssl3_get_next_proto(SSL *s);
1260 #endif
1261
1262 int ssl23_accept(SSL *s);
1263 int ssl23_connect(SSL *s);
1264 int ssl23_read_bytes(SSL *s, int n);
1265 int ssl23_write_bytes(SSL *s);
1266
1267 int tls1_new(SSL *s);
1268 void tls1_free(SSL *s);
1269 void tls1_clear(SSL *s);
1270 long tls1_ctrl(SSL *s,int cmd, long larg, void *parg);
1271 long tls1_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
1272
1273 int dtls1_new(SSL *s);
1274 int     dtls1_accept(SSL *s);
1275 int     dtls1_connect(SSL *s);
1276 void dtls1_free(SSL *s);
1277 void dtls1_clear(SSL *s);
1278 long dtls1_ctrl(SSL *s,int cmd, long larg, void *parg);
1279 int dtls1_shutdown(SSL *s);
1280
1281 long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
1282 int dtls1_get_record(SSL *s);
1283 int do_dtls1_write(SSL *s, int type, const unsigned char *buf,
1284         unsigned int len, int create_empty_fragement);
1285 int dtls1_dispatch_alert(SSL *s);
1286
1287 int ssl_init_wbio_buffer(SSL *s, int push);
1288 void ssl_free_wbio_buffer(SSL *s);
1289
1290 int tls1_change_cipher_state(SSL *s, int which);
1291 int tls1_setup_key_block(SSL *s);
1292 int tls1_enc(SSL *s, int snd);
1293 int tls1_final_finish_mac(SSL *s,
1294         const char *str, int slen, unsigned char *p);
1295 int tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *p);
1296 int tls1_mac(SSL *ssl, unsigned char *md, int snd);
1297 int tls1_generate_master_secret(SSL *s, unsigned char *out,
1298         unsigned char *p, int len);
1299 int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1300         const char *label, size_t llen,
1301         const unsigned char *p, size_t plen, int use_context);
1302 int tls1_alert_code(int code);
1303 int ssl3_alert_code(int code);
1304 int ssl_ok(SSL *s);
1305
1306 #ifndef OPENSSL_NO_ECDH
1307 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s);
1308 #endif
1309
1310 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
1311
1312 #ifndef OPENSSL_NO_EC
1313 int tls1_ec_curve_id2nid(int curve_id);
1314 int tls1_ec_nid2curve_id(int nid);
1315 int tls1_check_curve(SSL *s, const unsigned char *p, size_t len);
1316 int tls1_shared_curve(SSL *s, int nmatch);
1317 int tls1_set_curves(unsigned char **pext, size_t *pextlen,
1318                         int *curves, size_t ncurves);
1319 int tls1_set_curves_list(unsigned char **pext, size_t *pextlen,
1320                                 const char *str);
1321 int tls1_check_ec_tmp_key(SSL *s, unsigned long id);
1322 #endif /* OPENSSL_NO_EC */
1323
1324 #ifndef OPENSSL_NO_TLSEXT
1325 int tls1_shared_list(SSL *s,
1326                         const unsigned char *l1, size_t l1len,
1327                         const unsigned char *l2, size_t l2len,
1328                         int nmatch);
1329 unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *buf, unsigned char *limit, int *al);
1330 unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *buf, unsigned char *limit, int *al);
1331 int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n);
1332 int tls1_set_server_sigalgs(SSL *s);
1333 int ssl_check_clienthello_tlsext_late(SSL *s);
1334 int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n);
1335 int ssl_prepare_clienthello_tlsext(SSL *s);
1336 int ssl_prepare_serverhello_tlsext(SSL *s);
1337
1338 #ifndef OPENSSL_NO_HEARTBEATS
1339 int tls1_heartbeat(SSL *s);
1340 int dtls1_heartbeat(SSL *s);
1341 int tls1_process_heartbeat(SSL *s);
1342 int dtls1_process_heartbeat(SSL *s);
1343 #endif
1344
1345 #ifdef OPENSSL_NO_SHA256
1346 #define tlsext_tick_md  EVP_sha1
1347 #else
1348 #define tlsext_tick_md  EVP_sha256
1349 #endif
1350 int tls1_process_ticket(SSL *s, unsigned char *session_id, int len,
1351                                 const unsigned char *limit, SSL_SESSION **ret);
1352
1353 int tls12_get_sigandhash(unsigned char *p, const EVP_PKEY *pk,
1354                                 const EVP_MD *md);
1355 int tls12_get_sigid(const EVP_PKEY *pk);
1356 const EVP_MD *tls12_get_hash(unsigned char hash_alg);
1357 void ssl_set_sig_mask(unsigned long *pmask_a, SSL *s, int op);
1358
1359 int tls1_set_sigalgs_list(CERT *c, const char *str, int client);
1360 int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen, int client);
1361 int tls1_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain,
1362                                                                 int idx);
1363 void tls1_set_cert_validity(SSL *s);
1364
1365 #endif
1366 #ifndef OPENSSL_NO_DH
1367 DH *ssl_get_auto_dh(SSL *s);
1368 #endif
1369
1370 int ssl_security_cert(SSL *s, SSL_CTX *ctx, X509 *x, int vfy, int is_ee);
1371 int ssl_security_cert_chain(SSL *s, STACK_OF(X509) *sk, X509 *ex, int vfy);
1372
1373 EVP_MD_CTX* ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md) ;
1374 void ssl_clear_hash_ctx(EVP_MD_CTX **hash);
1375 int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
1376                                         int maxlen);
1377 int ssl_parse_serverhello_renegotiate_ext(SSL *s, unsigned char *d, int len,
1378                                           int *al);
1379 int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
1380                                         int maxlen);
1381 int ssl_parse_clienthello_renegotiate_ext(SSL *s, unsigned char *d, int len,
1382                                           int *al);
1383 long ssl_get_algorithm2(SSL *s);
1384 size_t tls12_copy_sigalgs(SSL *s, unsigned char *out,
1385                                 const unsigned char *psig, size_t psiglen);
1386 int tls1_save_sigalgs(SSL *s, const unsigned char *data, int dsize);
1387 int tls1_process_sigalgs(SSL *s);
1388 size_t tls12_get_psigalgs(SSL *s, const unsigned char **psigs);
1389 int tls12_check_peer_sigalg(const EVP_MD **pmd, SSL *s,
1390                                 const unsigned char *sig, EVP_PKEY *pkey);
1391 void ssl_set_client_disabled(SSL *s);
1392 int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c, int op);
1393
1394 int ssl_add_clienthello_use_srtp_ext(SSL *s, unsigned char *p, int *len, int maxlen);
1395 int ssl_parse_clienthello_use_srtp_ext(SSL *s, unsigned char *d, int len,int *al);
1396 int ssl_add_serverhello_use_srtp_ext(SSL *s, unsigned char *p, int *len, int maxlen);
1397 int ssl_parse_serverhello_use_srtp_ext(SSL *s, unsigned char *d, int len,int *al);
1398
1399 /* s3_cbc.c */
1400 void ssl3_cbc_copy_mac(unsigned char* out,
1401                        const SSL3_RECORD *rec,
1402                        unsigned md_size);
1403 int ssl3_cbc_remove_padding(const SSL* s,
1404                             SSL3_RECORD *rec,
1405                             unsigned block_size,
1406                             unsigned mac_size);
1407 int tls1_cbc_remove_padding(const SSL* s,
1408                             SSL3_RECORD *rec,
1409                             unsigned block_size,
1410                             unsigned mac_size);
1411 char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx);
1412 void ssl3_cbc_digest_record(
1413         const EVP_MD_CTX *ctx,
1414         unsigned char* md_out,
1415         size_t* md_out_size,
1416         const unsigned char header[13],
1417         const unsigned char *data,
1418         size_t data_plus_mac_size,
1419         size_t data_plus_mac_plus_padding_size,
1420         const unsigned char *mac_secret,
1421         unsigned mac_secret_length,
1422         char is_sslv3);
1423
1424 void tls_fips_digest_extra(
1425         const EVP_CIPHER_CTX *cipher_ctx, EVP_MD_CTX *mac_ctx,
1426         const unsigned char *data, size_t data_len, size_t orig_len);
1427
1428 int srp_verify_server_param(SSL *s, int *al);
1429
1430 /* t1_ext.c */
1431
1432 void custom_ext_init(custom_ext_methods *meths);
1433
1434 int custom_ext_parse(SSL *s, int server,
1435                         unsigned int ext_type,
1436                         const unsigned char *ext_data,
1437                         size_t ext_size,
1438                         int *al);
1439 int custom_ext_add(SSL *s, int server,
1440                         unsigned char **pret,
1441                         unsigned char *limit,
1442                         int *al);
1443
1444 int custom_exts_copy(custom_ext_methods *dst, const custom_ext_methods *src);
1445 void custom_exts_free(custom_ext_methods *exts);
1446
1447 #else
1448
1449 #define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer
1450 #define ssl3_setup_buffers SSL_test_functions()->p_ssl3_setup_buffers
1451 #define tls1_process_heartbeat SSL_test_functions()->p_tls1_process_heartbeat
1452 #define dtls1_process_heartbeat SSL_test_functions()->p_dtls1_process_heartbeat
1453
1454 #endif
1455 #endif