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 #include <openssl/comp.h>
 154 #include <openssl/bio.h>
 155 #include <openssl/stack.h>
 156 #ifndef OPENSSL_NO_RSA
 157 #include <openssl/rsa.h>
 158 #endif
 159 #ifndef OPENSSL_NO_DSA
 160 #include <openssl/dsa.h>
 161 #endif
 162 #include <openssl/err.h>
 163 #include <openssl/ssl.h>
 164 #include <openssl/symhacks.h>
 165
 166 #ifdef OPENSSL_BUILD_SHLIBSSL
 167 # undef OPENSSL_EXTERN
 168 # define OPENSSL_EXTERN OPENSSL_EXPORT
 169 #endif
 170
 171 #define PKCS1_CHECK
 172
 173 #define c2l(c,l)        (l = ((unsigned long)(*((c)++)))     , \
 174                          l|=(((unsigned long)(*((c)++)))<< 8), \
 175                          l|=(((unsigned long)(*((c)++)))<<16), \
 176                          l|=(((unsigned long)(*((c)++)))<<24))
 177
 178 /* NOTE - c is not incremented as per c2l */
 179 #define c2ln(c,l1,l2,n) { \
 180                         c+=n; \
 181                         l1=l2=0; \
 182                         switch (n) { \
 183                         case 8: l2 =((unsigned long)(*(--(c))))<<24; \
 184                         case 7: l2|=((unsigned long)(*(--(c))))<<16; \
 185                         case 6: l2|=((unsigned long)(*(--(c))))<< 8; \
 186                         case 5: l2|=((unsigned long)(*(--(c))));     \
 187                         case 4: l1 =((unsigned long)(*(--(c))))<<24; \
 188                         case 3: l1|=((unsigned long)(*(--(c))))<<16; \
 189                         case 2: l1|=((unsigned long)(*(--(c))))<< 8; \
 190                         case 1: l1|=((unsigned long)(*(--(c))));     \
 191                                 } \
 192                         }
 193
 194 #define l2c(l,c)        (*((c)++)=(unsigned char)(((l)    )&0xff), \
 195                          *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
 196                          *((c)++)=(unsigned char)(((l)>>16)&0xff), \
 197                          *((c)++)=(unsigned char)(((l)>>24)&0xff))
 198
 199 #define n2l(c,l)        (l =((unsigned long)(*((c)++)))<<24, \
 200                          l|=((unsigned long)(*((c)++)))<<16, \
 201                          l|=((unsigned long)(*((c)++)))<< 8, \
 202                          l|=((unsigned long)(*((c)++))))
 203
 204 #define l2n(l,c)        (*((c)++)=(unsigned char)(((l)>>24)&0xff), \
 205                          *((c)++)=(unsigned char)(((l)>>16)&0xff), \
 206                          *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
 207                          *((c)++)=(unsigned char)(((l)    )&0xff))
 208
 209 #define l2n6(l,c)       (*((c)++)=(unsigned char)(((l)>>40)&0xff), \
 210                          *((c)++)=(unsigned char)(((l)>>32)&0xff), \
 211                          *((c)++)=(unsigned char)(((l)>>24)&0xff), \
 212                          *((c)++)=(unsigned char)(((l)>>16)&0xff), \
 213                          *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
 214                          *((c)++)=(unsigned char)(((l)    )&0xff))
 215
 216 #define n2l6(c,l)       (l =((BN_ULLONG)(*((c)++)))<<40, \
 217                          l|=((BN_ULLONG)(*((c)++)))<<32, \
 218                          l|=((BN_ULLONG)(*((c)++)))<<24, \
 219                          l|=((BN_ULLONG)(*((c)++)))<<16, \
 220                          l|=((BN_ULLONG)(*((c)++)))<< 8, \
 221                          l|=((BN_ULLONG)(*((c)++))))
 222
 223 /* NOTE - c is not incremented as per l2c */
 224 #define l2cn(l1,l2,c,n) { \
 225                         c+=n; \
 226                         switch (n) { \
 227                         case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
 228                         case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
 229                         case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
 230                         case 5: *(--(c))=(unsigned char)(((l2)    )&0xff); \
 231                         case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
 232                         case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
 233                         case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
 234                         case 1: *(--(c))=(unsigned char)(((l1)    )&0xff); \
 235                                 } \
 236                         }
 237
 238 #define n2s(c,s)        ((s=(((unsigned int)(c[0]))<< 8)| \
 239                             (((unsigned int)(c[1]))    )),c+=2)
 240 #define s2n(s,c)        ((c[0]=(unsigned char)(((s)>> 8)&0xff), \
 241                           c[1]=(unsigned char)(((s)    )&0xff)),c+=2)
 242
 243 #define n2l3(c,l)       ((l =(((unsigned long)(c[0]))<<16)| \
 244                              (((unsigned long)(c[1]))<< 8)| \
 245                              (((unsigned long)(c[2]))    )),c+=3)
 246
 247 #define l2n3(l,c)       ((c[0]=(unsigned char)(((l)>>16)&0xff), \
 248                           c[1]=(unsigned char)(((l)>> 8)&0xff), \
 249                           c[2]=(unsigned char)(((l)    )&0xff)),c+=3)
 250
 251 /* LOCAL STUFF */
 252
 253 #define SSL_DECRYPT     0
 254 #define SSL_ENCRYPT     1
 255
 256 #define TWO_BYTE_BIT    0x80
 257 #define SEC_ESC_BIT     0x40
 258 #define TWO_BYTE_MASK   0x7fff
 259 #define THREE_BYTE_MASK 0x3fff
 260
 261 #define INC32(a)        ((a)=((a)+1)&0xffffffffL)
 262 #define DEC32(a)        ((a)=((a)-1)&0xffffffffL)
 263 #define MAX_MAC_SIZE    20 /* up from 16 for SSLv3 */
 264
 265 /*
 266  * Define the Bitmasks for SSL_CIPHER.algorithms.
 267  * This bits are used packed as dense as possible. If new methods/ciphers
 268  * etc will be added, the bits a likely to change, so this information
 269  * is for internal library use only, even though SSL_CIPHER.algorithms
 270  * can be publicly accessed.
 271  * Use the according functions for cipher management instead.
 272  *
 273  * The bit mask handling in the selection and sorting scheme in
 274  * ssl_create_cipher_list() has only limited capabilities, reflecting
 275  * that the different entities within are mutually exclusive:
 276  * ONLY ONE BIT PER MASK CAN BE SET AT A TIME.
 277  */
 278
 279 /* Bits for algorithm_mkey (key exchange algorithm) */
 280 #define SSL_kRSA                0x00000001L /* RSA key exchange */
 281 #define SSL_kDHr                0x00000002L /* DH cert, RSA CA cert */ /* no such ciphersuites supported! */
 282 #define SSL_kDHd                0x00000004L /* DH cert, DSA CA cert */ /* no such ciphersuite supported! */
 283 #define SSL_kEDH                0x00000008L /* tmp DH key no DH cert */
 284 #define SSL_kKRB5               0x00000010L /* Kerberos5 key exchange */
 285 #define SSL_kECDHr              0x00000020L /* ECDH cert, RSA CA cert */
 286 #define SSL_kECDHe              0x00000040L /* ECDH cert, ECDSA CA cert */
 287 #define SSL_kEECDH              0x00000080L /* ephemeral ECDH */
 288 #define SSL_kPSK                0x00000100L /* PSK */
 289 #define SSL_kGOST       0x00000200L /* GOST key exchange */
 290
 291 /* Bits for algorithm_auth (server authentication) */
 292 #define SSL_aRSA                0x00000001L /* RSA auth */
 293 #define SSL_aDSS                0x00000002L /* DSS auth */
 294 #define SSL_aNULL               0x00000004L /* no auth (i.e. use ADH or AECDH) */
 295 #define SSL_aDH                 0x00000008L /* Fixed DH auth (kDHd or kDHr) */ /* no such ciphersuites supported! */
 296 #define SSL_aECDH               0x00000010L /* Fixed ECDH auth (kECDHe or kECDHr) */
 297 #define SSL_aKRB5               0x00000020L /* KRB5 auth */
 298 #define SSL_aECDSA              0x00000040L /* ECDSA auth*/
 299 #define SSL_aPSK                0x00000080L /* PSK auth */
 300 #define SSL_aGOST94                             0x00000100L /* GOST R 34.10-94 signature auth */
 301 #define SSL_aGOST01                     0x00000200L /* GOST R 34.10-2001 signature auth */
 302
 303
 304 /* Bits for algorithm_enc (symmetric encryption) */
 305 #define SSL_DES                 0x00000001L
 306 #define SSL_3DES                0x00000002L
 307 #define SSL_RC4                 0x00000004L
 308 #define SSL_RC2                 0x00000008L
 309 #define SSL_IDEA                0x00000010L
 310 #define SSL_eNULL               0x00000020L
 311 #define SSL_AES128              0x00000040L
 312 #define SSL_AES256              0x00000080L
 313 #define SSL_CAMELLIA128         0x00000100L
 314 #define SSL_CAMELLIA256         0x00000200L
 315 #define SSL_eGOST2814789CNT     0x00000400L
 316 #define SSL_SEED                0x00000800L
 317
 318 #define SSL_AES                 (SSL_AES128|SSL_AES256)
 319 #define SSL_CAMELLIA            (SSL_CAMELLIA128|SSL_CAMELLIA256)
 320
 321
 322 /* Bits for algorithm_mac (symmetric authentication) */
 323 #define SSL_MD5                 0x00000001L
 324 #define SSL_SHA1                0x00000002L
 325 #define SSL_GOST94      0x00000004L
 326 #define SSL_GOST89MAC   0x00000008L
 327
 328 /* Bits for algorithm_ssl (protocol version) */
 329 #define SSL_SSLV2               0x00000001L
 330 #define SSL_SSLV3               0x00000002L
 331 #define SSL_TLSV1               SSL_SSLV3       /* for now */
 332
 333
 334 /* Bits for algorithm2 (handshake digests and other extra flags) */
 335
 336 #define SSL_HANDSHAKE_MAC_MD5 0x10
 337 #define SSL_HANDSHAKE_MAC_SHA 0x20
 338 #define SSL_HANDSHAKE_MAC_GOST94 0x40
 339 #define SSL_HANDSHAKE_MAC_DEFAULT (SSL_HANDSHAKE_MAC_MD5 | SSL_HANDSHAKE_MAC_SHA)
 340
 341 /* When adding new digest in the ssl_ciph.c and increment SSM_MD_NUM_IDX
 342  * make sure to update this constant too */
 343 #define SSL_MAX_DIGEST 4
 344
 345 #define TLS1_PRF_DGST_SHIFT 8
 346 #define TLS1_PRF_MD5 (SSL_HANDSHAKE_MAC_MD5 << TLS1_PRF_DGST_SHIFT)
 347 #define TLS1_PRF_SHA1 (SSL_HANDSHAKE_MAC_SHA << TLS1_PRF_DGST_SHIFT)
 348 #define TLS1_PRF_GOST94 (SSL_HANDSHAKE_MAC_GOST94 << TLS1_PRF_DGST_SHIFT)
 349 #define TLS1_PRF (TLS1_PRF_MD5 | TLS1_PRF_SHA1)
 350
 351 /* Stream MAC for GOST ciphersuites from cryptopro draft
 352  * (currently this also goes into algorithm2) */
 353 #define TLS1_STREAM_MAC 0x04
 354
 355
 356
 357 /*
 358  * Export and cipher strength information. For each cipher we have to decide
 359  * whether it is exportable or not. This information is likely to change
 360  * over time, since the export control rules are no static technical issue.
 361  *
 362  * Independent of the export flag the cipher strength is sorted into classes.
 363  * SSL_EXP40 was denoting the 40bit US export limit of past times, which now
 364  * is at 56bit (SSL_EXP56). If the exportable cipher class is going to change
 365  * again (eg. to 64bit) the use of "SSL_EXP*" becomes blurred even more,
 366  * since SSL_EXP64 could be similar to SSL_LOW.
 367  * For this reason SSL_MICRO and SSL_MINI macros are included to widen the
 368  * namespace of SSL_LOW-SSL_HIGH to lower values. As development of speed
 369  * and ciphers goes, another extension to SSL_SUPER and/or SSL_ULTRA would
 370  * be possible.
 371  */
 372 #define SSL_EXP_MASK            0x00000003L
 373 #define SSL_STRONG_MASK         0x000000fcL
 374
 375 #define SSL_NOT_EXP             0x00000001L
 376 #define SSL_EXPORT              0x00000002L
 377
 378 #define SSL_STRONG_NONE         0x00000004L
 379 #define SSL_EXP40               0x00000008L
 380 #define SSL_MICRO               (SSL_EXP40)
 381 #define SSL_EXP56               0x00000010L
 382 #define SSL_MINI                (SSL_EXP56)
 383 #define SSL_LOW                 0x00000020L
 384 #define SSL_MEDIUM              0x00000040L
 385 #define SSL_HIGH                0x00000080L
 386
 387 /* we have used 000000ff - 24 bits left to go */
 388
 389 /*
 390  * Macros to check the export status and cipher strength for export ciphers.
 391  * Even though the macros for EXPORT and EXPORT40/56 have similar names,
 392  * their meaning is different:
 393  * *_EXPORT macros check the 'exportable' status.
 394  * *_EXPORT40/56 macros are used to check whether a certain cipher strength
 395  *          is given.
 396  * Since the SSL_IS_EXPORT* and SSL_EXPORT* macros depend on the correct
 397  * algorithm structure element to be passed (algorithms, algo_strength) and no
 398  * typechecking can be done as they are all of type unsigned long, their
 399  * direct usage is discouraged.
 400  * Use the SSL_C_* macros instead.
 401  */
 402 #define SSL_IS_EXPORT(a)        ((a)&SSL_EXPORT)
 403 #define SSL_IS_EXPORT56(a)      ((a)&SSL_EXP56)
 404 #define SSL_IS_EXPORT40(a)      ((a)&SSL_EXP40)
 405 #define SSL_C_IS_EXPORT(c)      SSL_IS_EXPORT((c)->algo_strength)
 406 #define SSL_C_IS_EXPORT56(c)    SSL_IS_EXPORT56((c)->algo_strength)
 407 #define SSL_C_IS_EXPORT40(c)    SSL_IS_EXPORT40((c)->algo_strength)
 408
 409 #define SSL_EXPORT_KEYLENGTH(a,s)       (SSL_IS_EXPORT40(s) ? 5 : \
 410                                  (a) == SSL_DES ? 8 : 7)
 411 #define SSL_EXPORT_PKEYLENGTH(a) (SSL_IS_EXPORT40(a) ? 512 : 1024)
 412 #define SSL_C_EXPORT_KEYLENGTH(c)       SSL_EXPORT_KEYLENGTH((c)->algorithm_enc, \
 413                                 (c)->algo_strength)
 414 #define SSL_C_EXPORT_PKEYLENGTH(c)      SSL_EXPORT_PKEYLENGTH((c)->algo_strength)
 415
 416
 417
 418
 419 /* Mostly for SSLv3 */
 420 #define SSL_PKEY_RSA_ENC        0
 421 #define SSL_PKEY_RSA_SIGN       1
 422 #define SSL_PKEY_DSA_SIGN       2
 423 #define SSL_PKEY_DH_RSA         3
 424 #define SSL_PKEY_DH_DSA         4
 425 #define SSL_PKEY_ECC            5
 426 #define SSL_PKEY_GOST94         6
 427 #define SSL_PKEY_GOST01         7
 428 #define SSL_PKEY_NUM            8
 429
 430 /* SSL_kRSA <- RSA_ENC | (RSA_TMP & RSA_SIGN) |
 431  *          <- (EXPORT & (RSA_ENC | RSA_TMP) & RSA_SIGN)
 432  * SSL_kDH  <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
 433  * SSL_kEDH <- RSA_ENC | RSA_SIGN | DSA_SIGN
 434  * SSL_aRSA <- RSA_ENC | RSA_SIGN
 435  * SSL_aDSS <- DSA_SIGN
 436  */
 437
 438 /*
 439 #define CERT_INVALID            0
 440 #define CERT_PUBLIC_KEY         1
 441 #define CERT_PRIVATE_KEY        2
 442 */
 443
 444 #ifndef OPENSSL_NO_EC
 445 /* From ECC-TLS draft, used in encoding the curve type in
 446  * ECParameters
 447  */
 448 #define EXPLICIT_PRIME_CURVE_TYPE  1
 449 #define EXPLICIT_CHAR2_CURVE_TYPE  2
 450 #define NAMED_CURVE_TYPE           3
 451 #endif  /* OPENSSL_NO_EC */
 452
 453 typedef struct cert_pkey_st
 454         {
 455         X509 *x509;
 456         EVP_PKEY *privatekey;
 457         } CERT_PKEY;
 458
 459 typedef struct cert_st
 460         {
 461         /* Current active set */
 462         CERT_PKEY *key; /* ALWAYS points to an element of the pkeys array
 463                          * Probably it would make more sense to store
 464                          * an index, not a pointer. */
 465
 466         /* The following masks are for the key and auth
 467          * algorithms that are supported by the certs below */
 468         int valid;
 469         unsigned long mask_k;
 470         unsigned long mask_a;
 471         unsigned long export_mask_k;
 472         unsigned long export_mask_a;
 473 #ifndef OPENSSL_NO_RSA
 474         RSA *rsa_tmp;
 475         RSA *(*rsa_tmp_cb)(SSL *ssl,int is_export,int keysize);
 476 #endif
 477 #ifndef OPENSSL_NO_DH
 478         DH *dh_tmp;
 479         DH *(*dh_tmp_cb)(SSL *ssl,int is_export,int keysize);
 480 #endif
 481 #ifndef OPENSSL_NO_ECDH
 482         EC_KEY *ecdh_tmp;
 483         /* Callback for generating ephemeral ECDH keys */
 484         EC_KEY *(*ecdh_tmp_cb)(SSL *ssl,int is_export,int keysize);
 485 #endif
 486
 487         CERT_PKEY pkeys[SSL_PKEY_NUM];
 488
 489         int references; /* >1 only if SSL_copy_session_id is used */
 490         } CERT;
 491
 492
 493 typedef struct sess_cert_st
 494         {
 495         STACK_OF(X509) *cert_chain; /* as received from peer (not for SSL2) */
 496
 497         /* The 'peer_...' members are used only by clients. */
 498         int peer_cert_type;
 499
 500         CERT_PKEY *peer_key; /* points to an element of peer_pkeys (never NULL!) */
 501         CERT_PKEY peer_pkeys[SSL_PKEY_NUM];
 502         /* Obviously we don't have the private keys of these,
 503          * so maybe we shouldn't even use the CERT_PKEY type here. */
 504
 505 #ifndef OPENSSL_NO_RSA
 506         RSA *peer_rsa_tmp; /* not used for SSL 2 */
 507 #endif
 508 #ifndef OPENSSL_NO_DH
 509         DH *peer_dh_tmp; /* not used for SSL 2 */
 510 #endif
 511 #ifndef OPENSSL_NO_ECDH
 512         EC_KEY *peer_ecdh_tmp;
 513 #endif
 514
 515         int references; /* actually always 1 at the moment */
 516         } SESS_CERT;
 517
 518
 519 /*#define MAC_DEBUG     */
 520
 521 /*#define ERR_DEBUG     */
 522 /*#define ABORT_DEBUG   */
 523 /*#define PKT_DEBUG 1   */
 524 /*#define DES_DEBUG     */
 525 /*#define DES_OFB_DEBUG */
 526 /*#define SSL_DEBUG     */
 527 /*#define RSA_DEBUG     */
 528 /*#define IDEA_DEBUG    */
 529
 530 #define FP_ICC  (int (*)(const void *,const void *))
 531 #define ssl_put_cipher_by_char(ssl,ciph,ptr) \
 532                 ((ssl)->method->put_cipher_by_char((ciph),(ptr)))
 533 #define ssl_get_cipher_by_char(ssl,ptr) \
 534                 ((ssl)->method->get_cipher_by_char(ptr))
 535
 536 /* This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff
 537  * It is a bit of a mess of functions, but hell, think of it as
 538  * an opaque structure :-) */
 539 typedef struct ssl3_enc_method
 540         {
 541         int (*enc)(SSL *, int);
 542         int (*mac)(SSL *, unsigned char *, int);
 543         int (*setup_key_block)(SSL *);
 544         int (*generate_master_secret)(SSL *, unsigned char *, unsigned char *, int);
 545         int (*change_cipher_state)(SSL *, int);
 546         int (*final_finish_mac)(SSL *,  const char *, int, unsigned char *);
 547         int finish_mac_length;
 548         int (*cert_verify_mac)(SSL *, int, unsigned char *);
 549         const char *client_finished_label;
 550         int client_finished_label_len;
 551         const char *server_finished_label;
 552         int server_finished_label_len;
 553         int (*alert_value)(int);
 554         } SSL3_ENC_METHOD;
 555
 556 /* Used for holding the relevant compression methods loaded into SSL_CTX */
 557 typedef struct ssl3_comp_st
 558         {
 559         int comp_id;    /* The identifier byte for this compression type */
 560         char *name;     /* Text name used for the compression type */
 561         COMP_METHOD *method; /* The method :-) */
 562         } SSL3_COMP;
 563
 564 #if !defined(OPENSSL_NO_BUF_FREELISTS) && !defined(OPENSSL_NO_RELEASE_BUFFERS)
 565 typedef struct ssl3_buf_freelist_st
 566         {
 567         size_t chunklen;
 568         unsigned int len;
 569         struct ssl3_buf_freelist_entry_st *head;
 570         } SSL3_BUF_FREELIST;
 571
 572 typedef struct ssl3_buf_freelist_entry_st
 573         {
 574         struct ssl3_buf_freelist_entry_st *next;
 575         } SSL3_BUF_FREELIST_ENTRY;
 576 #endif
 577
 578 extern SSL3_ENC_METHOD ssl3_undef_enc_method;
 579 OPENSSL_EXTERN SSL_CIPHER ssl2_ciphers[];
 580 OPENSSL_EXTERN SSL_CIPHER ssl3_ciphers[];
 581
 582
 583 SSL_METHOD *ssl_bad_method(int ver);
 584
 585 extern SSL3_ENC_METHOD TLSv1_enc_data;
 586 extern SSL3_ENC_METHOD SSLv3_enc_data;
 587 extern SSL3_ENC_METHOD DTLSv1_enc_data;
 588
 589 #define IMPLEMENT_tls1_meth_func(func_name, s_accept, s_connect, s_get_meth) \
 590 const SSL_METHOD *func_name(void)  \
 591         { \
 592         static const SSL_METHOD func_name##_data= { \
 593                 TLS1_VERSION, \
 594                 tls1_new, \
 595                 tls1_clear, \
 596                 tls1_free, \
 597                 s_accept, \
 598                 s_connect, \
 599                 ssl3_read, \
 600                 ssl3_peek, \
 601                 ssl3_write, \
 602                 ssl3_shutdown, \
 603                 ssl3_renegotiate, \
 604                 ssl3_renegotiate_check, \
 605                 ssl3_get_message, \
 606                 ssl3_read_bytes, \
 607                 ssl3_write_bytes, \
 608                 ssl3_dispatch_alert, \
 609                 ssl3_ctrl, \
 610                 ssl3_ctx_ctrl, \
 611                 ssl3_get_cipher_by_char, \
 612                 ssl3_put_cipher_by_char, \
 613                 ssl3_pending, \
 614                 ssl3_num_ciphers, \
 615                 ssl3_get_cipher, \
 616                 s_get_meth, \
 617                 tls1_default_timeout, \
 618                 &TLSv1_enc_data, \
 619                 ssl_undefined_void_function, \
 620                 ssl3_callback_ctrl, \
 621                 ssl3_ctx_callback_ctrl, \
 622         }; \
 623         return &func_name##_data; \
 624         }
 625
 626 #define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect, s_get_meth) \
 627 const SSL_METHOD *func_name(void)  \
 628         { \
 629         static const SSL_METHOD func_name##_data= { \
 630                 SSL3_VERSION, \
 631                 ssl3_new, \
 632                 ssl3_clear, \
 633                 ssl3_free, \
 634                 s_accept, \
 635                 s_connect, \
 636                 ssl3_read, \
 637                 ssl3_peek, \
 638                 ssl3_write, \
 639                 ssl3_shutdown, \
 640                 ssl3_renegotiate, \
 641                 ssl3_renegotiate_check, \
 642                 ssl3_get_message, \
 643                 ssl3_read_bytes, \
 644                 ssl3_write_bytes, \
 645                 ssl3_dispatch_alert, \
 646                 ssl3_ctrl, \
 647                 ssl3_ctx_ctrl, \
 648                 ssl3_get_cipher_by_char, \
 649                 ssl3_put_cipher_by_char, \
 650                 ssl3_pending, \
 651                 ssl3_num_ciphers, \
 652                 ssl3_get_cipher, \
 653                 s_get_meth, \
 654                 ssl3_default_timeout, \
 655                 &SSLv3_enc_data, \
 656                 ssl_undefined_void_function, \
 657                 ssl3_callback_ctrl, \
 658                 ssl3_ctx_callback_ctrl, \
 659         }; \
 660         return &func_name##_data; \
 661         }
 662
 663 #define IMPLEMENT_ssl23_meth_func(func_name, s_accept, s_connect, s_get_meth) \
 664 const SSL_METHOD *func_name(void)  \
 665         { \
 666         static const SSL_METHOD func_name##_data= { \
 667         TLS1_VERSION, \
 668         tls1_new, \
 669         tls1_clear, \
 670         tls1_free, \
 671         s_accept, \
 672         s_connect, \
 673         ssl23_read, \
 674         ssl23_peek, \
 675         ssl23_write, \
 676         ssl_undefined_function, \
 677         ssl_undefined_function, \
 678         ssl_ok, \
 679         ssl3_get_message, \
 680         ssl3_read_bytes, \
 681         ssl3_write_bytes, \
 682         ssl3_dispatch_alert, \
 683         ssl3_ctrl, \
 684         ssl3_ctx_ctrl, \
 685         ssl23_get_cipher_by_char, \
 686         ssl23_put_cipher_by_char, \
 687         ssl_undefined_const_function, \
 688         ssl23_num_ciphers, \
 689         ssl23_get_cipher, \
 690         s_get_meth, \
 691         ssl23_default_timeout, \
 692         &ssl3_undef_enc_method, \
 693         ssl_undefined_void_function, \
 694         ssl3_callback_ctrl, \
 695         ssl3_ctx_callback_ctrl, \
 696         }; \
 697         return &func_name##_data; \
 698         }
 699
 700 #define IMPLEMENT_ssl2_meth_func(func_name, s_accept, s_connect, s_get_meth) \
 701 const SSL_METHOD *func_name(void)  \
 702         { \
 703         static const SSL_METHOD func_name##_data= { \
 704                 SSL2_VERSION, \
 705                 ssl2_new,       /* local */ \
 706                 ssl2_clear,     /* local */ \
 707                 ssl2_free,      /* local */ \
 708                 s_accept, \
 709                 s_connect, \
 710                 ssl2_read, \
 711                 ssl2_peek, \
 712                 ssl2_write, \
 713                 ssl2_shutdown, \
 714                 ssl_ok, /* NULL - renegotiate */ \
 715                 ssl_ok, /* NULL - check renegotiate */ \
 716                 NULL, /* NULL - ssl_get_message */ \
 717                 NULL, /* NULL - ssl_get_record */ \
 718                 NULL, /* NULL - ssl_write_bytes */ \
 719                 NULL, /* NULL - dispatch_alert */ \
 720                 ssl2_ctrl,      /* local */ \
 721                 ssl2_ctx_ctrl,  /* local */ \
 722                 ssl2_get_cipher_by_char, \
 723                 ssl2_put_cipher_by_char, \
 724                 ssl2_pending, \
 725                 ssl2_num_ciphers, \
 726                 ssl2_get_cipher, \
 727                 s_get_meth, \
 728                 ssl2_default_timeout, \
 729                 &ssl3_undef_enc_method, \
 730                 ssl_undefined_void_function, \
 731                 ssl2_callback_ctrl,     /* local */ \
 732                 ssl2_ctx_callback_ctrl, /* local */ \
 733         }; \
 734         return &func_name##_data; \
 735         }
 736
 737 #define IMPLEMENT_dtls1_meth_func(func_name, s_accept, s_connect, s_get_meth) \
 738 const SSL_METHOD *func_name(void)  \
 739         { \
 740         static const SSL_METHOD func_name##_data= { \
 741                 DTLS1_VERSION, \
 742                 dtls1_new, \
 743                 dtls1_clear, \
 744                 dtls1_free, \
 745                 s_accept, \
 746                 s_connect, \
 747                 ssl3_read, \
 748                 ssl3_peek, \
 749                 ssl3_write, \
 750                 ssl3_shutdown, \
 751                 ssl3_renegotiate, \
 752                 ssl3_renegotiate_check, \
 753                 dtls1_get_message, \
 754                 dtls1_read_bytes, \
 755                 dtls1_write_app_data_bytes, \
 756                 dtls1_dispatch_alert, \
 757                 ssl3_ctrl, \
 758                 ssl3_ctx_ctrl, \
 759                 ssl3_get_cipher_by_char, \
 760                 ssl3_put_cipher_by_char, \
 761                 ssl3_pending, \
 762                 ssl3_num_ciphers, \
 763                 dtls1_get_cipher, \
 764                 s_get_meth, \
 765                 dtls1_default_timeout, \
 766                 &DTLSv1_enc_data, \
 767                 ssl_undefined_void_function, \
 768                 ssl3_callback_ctrl, \
 769                 ssl3_ctx_callback_ctrl, \
 770         }; \
 771         return &func_name##_data; \
 772         }
 773
 774 void ssl_clear_cipher_ctx(SSL *s);
 775 int ssl_clear_bad_session(SSL *s);
 776 CERT *ssl_cert_new(void);
 777 CERT *ssl_cert_dup(CERT *cert);
 778 int ssl_cert_inst(CERT **o);
 779 void ssl_cert_free(CERT *c);
 780 SESS_CERT *ssl_sess_cert_new(void);
 781 void ssl_sess_cert_free(SESS_CERT *sc);
 782 int ssl_set_peer_cert_type(SESS_CERT *c, int type);
 783 int ssl_get_new_session(SSL *s, int session);
 784 int ssl_get_prev_session(SSL *s, unsigned char *session,int len, const unsigned char *limit);
 785 int ssl_cipher_id_cmp(const SSL_CIPHER *a,const SSL_CIPHER *b);
 786 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
 787                         const SSL_CIPHER * const *bp);
 788 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
 789                                                STACK_OF(SSL_CIPHER) **skp);
 790 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
 791                              int (*put_cb)(const SSL_CIPHER *, unsigned char *));
 792 STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth,
 793                                              STACK_OF(SSL_CIPHER) **pref,
 794                                              STACK_OF(SSL_CIPHER) **sorted,
 795                                              const char *rule_str);
 796 void ssl_update_cache(SSL *s, int mode);
 797 int ssl_cipher_get_evp(const SSL_SESSION *s,const EVP_CIPHER **enc,
 798                        const EVP_MD **md,int *mac_pkey_type,int *mac_secret_size, SSL_COMP **comp);
 799 int ssl_get_handshake_digest(int i,long *mask,const EVP_MD **md);
 800 int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk);
 801 int ssl_undefined_function(SSL *s);
 802 int ssl_undefined_void_function(void);
 803 int ssl_undefined_const_function(const SSL *s);
 804 X509 *ssl_get_server_send_cert(SSL *);
 805 EVP_PKEY *ssl_get_sign_pkey(SSL *,SSL_CIPHER *);
 806 int ssl_cert_type(X509 *x,EVP_PKEY *pkey);
 807 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher);
 808 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
 809 int ssl_verify_alarm_type(long type);
 810 void ssl_load_ciphers(void);
 811
 812 int ssl2_enc_init(SSL *s, int client);
 813 int ssl2_generate_key_material(SSL *s);
 814 void ssl2_enc(SSL *s,int send_data);
 815 void ssl2_mac(SSL *s,unsigned char *mac,int send_data);
 816 SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p);
 817 int ssl2_put_cipher_by_char(const SSL_CIPHER *c,unsigned char *p);
 818 int ssl2_part_read(SSL *s, unsigned long f, int i);
 819 int ssl2_do_write(SSL *s);
 820 int ssl2_set_certificate(SSL *s, int type, int len, const unsigned char *data);
 821 void ssl2_return_error(SSL *s,int reason);
 822 void ssl2_write_error(SSL *s);
 823 int ssl2_num_ciphers(void);
 824 SSL_CIPHER *ssl2_get_cipher(unsigned int u);
 825 int     ssl2_new(SSL *s);
 826 void    ssl2_free(SSL *s);
 827 int     ssl2_accept(SSL *s);
 828 int     ssl2_connect(SSL *s);
 829 int     ssl2_read(SSL *s, void *buf, int len);
 830 int     ssl2_peek(SSL *s, void *buf, int len);
 831 int     ssl2_write(SSL *s, const void *buf, int len);
 832 int     ssl2_shutdown(SSL *s);
 833 void    ssl2_clear(SSL *s);
 834 long    ssl2_ctrl(SSL *s,int cmd, long larg, void *parg);
 835 long    ssl2_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg);
 836 long    ssl2_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
 837 long    ssl2_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)(void));
 838 int     ssl2_pending(const SSL *s);
 839 long    ssl2_default_timeout(void );
 840
 841 SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
 842 int ssl3_put_cipher_by_char(const SSL_CIPHER *c,unsigned char *p);
 843 void ssl3_init_finished_mac(SSL *s);
 844 int ssl3_send_server_certificate(SSL *s);
 845 int ssl3_send_newsession_ticket(SSL *s);
 846 int ssl3_send_cert_status(SSL *s);
 847 int ssl3_get_finished(SSL *s,int state_a,int state_b);
 848 int ssl3_setup_key_block(SSL *s);
 849 int ssl3_send_change_cipher_spec(SSL *s,int state_a,int state_b);
 850 int ssl3_change_cipher_state(SSL *s,int which);
 851 void ssl3_cleanup_key_block(SSL *s);
 852 int ssl3_do_write(SSL *s,int type);
 853 void ssl3_send_alert(SSL *s,int level, int desc);
 854 int ssl3_generate_master_secret(SSL *s, unsigned char *out,
 855         unsigned char *p, int len);
 856 int ssl3_get_req_cert_type(SSL *s,unsigned char *p);
 857 long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
 858 int ssl3_send_finished(SSL *s, int a, int b, const char *sender,int slen);
 859 int ssl3_num_ciphers(void);
 860 SSL_CIPHER *ssl3_get_cipher(unsigned int u);
 861 int ssl3_renegotiate(SSL *ssl);
 862 int ssl3_renegotiate_check(SSL *ssl);
 863 int ssl3_dispatch_alert(SSL *s);
 864 int ssl3_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
 865 int ssl3_write_bytes(SSL *s, int type, const void *buf, int len);
 866 int ssl3_final_finish_mac(SSL *s, const char *sender, int slen,unsigned char *p);
 867 int ssl3_cert_verify_mac(SSL *s, int md_nid, unsigned char *p);
 868 void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len);
 869 int ssl3_enc(SSL *s, int send_data);
 870 int ssl3_mac(SSL *ssl, unsigned char *md, int send_data);
 871 void ssl3_free_digest_list(SSL *s);
 872 unsigned long ssl3_output_cert_chain(SSL *s, X509 *x);
 873 SSL_CIPHER *ssl3_choose_cipher(SSL *ssl,STACK_OF(SSL_CIPHER) *clnt,
 874                                STACK_OF(SSL_CIPHER) *srvr);
 875 int     ssl3_setup_buffers(SSL *s);
 876 int     ssl3_setup_read_buffer(SSL *s);
 877 int     ssl3_setup_write_buffer(SSL *s);
 878 int     ssl3_release_read_buffer(SSL *s);
 879 int     ssl3_release_write_buffer(SSL *s);
 880 void ssl3_digest_cached_records(SSL *s);
 881 int     ssl3_new(SSL *s);
 882 void    ssl3_free(SSL *s);
 883 int     ssl3_accept(SSL *s);
 884 int     ssl3_connect(SSL *s);
 885 int     ssl3_read(SSL *s, void *buf, int len);
 886 int     ssl3_peek(SSL *s, void *buf, int len);
 887 int     ssl3_write(SSL *s, const void *buf, int len);
 888 int     ssl3_shutdown(SSL *s);
 889 void    ssl3_clear(SSL *s);
 890 long    ssl3_ctrl(SSL *s,int cmd, long larg, void *parg);
 891 long    ssl3_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg);
 892 long    ssl3_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
 893 long    ssl3_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)(void));
 894 int     ssl3_pending(const SSL *s);
 895
 896 void ssl3_record_sequence_update(unsigned char *seq);
 897 int ssl3_do_change_cipher_spec(SSL *ssl);
 898 long ssl3_default_timeout(void );
 899
 900 int ssl23_num_ciphers(void );
 901 SSL_CIPHER *ssl23_get_cipher(unsigned int u);
 902 int ssl23_read(SSL *s, void *buf, int len);
 903 int ssl23_peek(SSL *s, void *buf, int len);
 904 int ssl23_write(SSL *s, const void *buf, int len);
 905 int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
 906 SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p);
 907 long ssl23_default_timeout(void );
 908
 909 long tls1_default_timeout(void);
 910 int dtls1_do_write(SSL *s,int type);
 911 int ssl3_read_n(SSL *s, int n, int max, int extend);
 912 int dtls1_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
 913 int ssl3_do_compress(SSL *ssl);
 914 int ssl3_do_uncompress(SSL *ssl);
 915 int ssl3_write_pending(SSL *s, int type, const unsigned char *buf,
 916         unsigned int len);
 917 unsigned char *dtls1_set_message_header(SSL *s,
 918         unsigned char *p, unsigned char mt,     unsigned long len,
 919         unsigned long frag_off, unsigned long frag_len);
 920
 921 int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len);
 922 int dtls1_write_bytes(SSL *s, int type, const void *buf, int len);
 923
 924 int dtls1_send_change_cipher_spec(SSL *s, int a, int b);
 925 int dtls1_send_finished(SSL *s, int a, int b, const char *sender, int slen);
 926 unsigned long dtls1_output_cert_chain(SSL *s, X509 *x);
 927 int dtls1_read_failed(SSL *s, int code);
 928 int dtls1_buffer_message(SSL *s, int ccs);
 929 int dtls1_retransmit_message(SSL *s, unsigned short seq,
 930         unsigned long frag_off, int *found);
 931 void dtls1_clear_record_buffer(SSL *s);
 932 void dtls1_get_message_header(unsigned char *data, struct hm_header_st *msg_hdr);
 933 void dtls1_get_ccs_header(unsigned char *data, struct ccs_header_st *ccs_hdr);
 934 void dtls1_reset_seq_numbers(SSL *s, int rw);
 935 long dtls1_default_timeout(void);
 936 SSL_CIPHER *dtls1_get_cipher(unsigned int u);
 937
 938
 939 /* some client-only functions */
 940 int ssl3_client_hello(SSL *s);
 941 int ssl3_get_server_hello(SSL *s);
 942 int ssl3_get_certificate_request(SSL *s);
 943 int ssl3_get_new_session_ticket(SSL *s);
 944 int ssl3_get_cert_status(SSL *s);
 945 int ssl3_get_server_done(SSL *s);
 946 int ssl3_send_client_verify(SSL *s);
 947 int ssl3_send_client_certificate(SSL *s);
 948 int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey);
 949 int ssl3_send_client_key_exchange(SSL *s);
 950 int ssl3_get_key_exchange(SSL *s);
 951 int ssl3_get_server_certificate(SSL *s);
 952 int ssl3_check_cert_and_algorithm(SSL *s);
 953
 954 int dtls1_client_hello(SSL *s);
 955 int dtls1_send_client_certificate(SSL *s);
 956 int dtls1_send_client_key_exchange(SSL *s);
 957 int dtls1_send_client_verify(SSL *s);
 958
 959 /* some server-only functions */
 960 int ssl3_get_client_hello(SSL *s);
 961 int ssl3_send_server_hello(SSL *s);
 962 int ssl3_send_hello_request(SSL *s);
 963 int ssl3_send_server_key_exchange(SSL *s);
 964 int ssl3_send_certificate_request(SSL *s);
 965 int ssl3_send_server_done(SSL *s);
 966 int ssl3_check_client_hello(SSL *s);
 967 int ssl3_get_client_certificate(SSL *s);
 968 int ssl3_get_client_key_exchange(SSL *s);
 969 int ssl3_get_cert_verify(SSL *s);
 970
 971 int dtls1_send_hello_request(SSL *s);
 972 int dtls1_send_server_hello(SSL *s);
 973 int dtls1_send_server_certificate(SSL *s);
 974 int dtls1_send_server_key_exchange(SSL *s);
 975 int dtls1_send_certificate_request(SSL *s);
 976 int dtls1_send_server_done(SSL *s);
 977
 978
 979
 980 int ssl23_accept(SSL *s);
 981 int ssl23_connect(SSL *s);
 982 int ssl23_read_bytes(SSL *s, int n);
 983 int ssl23_write_bytes(SSL *s);
 984
 985 int tls1_new(SSL *s);
 986 void tls1_free(SSL *s);
 987 void tls1_clear(SSL *s);
 988 long tls1_ctrl(SSL *s,int cmd, long larg, void *parg);
 989 long tls1_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
 990
 991 int dtls1_new(SSL *s);
 992 int     dtls1_accept(SSL *s);
 993 int     dtls1_connect(SSL *s);
 994 void dtls1_free(SSL *s);
 995 void dtls1_clear(SSL *s);
 996 long dtls1_ctrl(SSL *s,int cmd, long larg, void *parg);
 997
 998 long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
 999 int dtls1_get_record(SSL *s);
1000 int do_dtls1_write(SSL *s, int type, const unsigned char *buf,
1001         unsigned int len, int create_empty_fragement);
1002 int dtls1_dispatch_alert(SSL *s);
1003 int dtls1_enc(SSL *s, int snd);
1004
1005 int ssl_init_wbio_buffer(SSL *s, int push);
1006 void ssl_free_wbio_buffer(SSL *s);
1007
1008 int tls1_change_cipher_state(SSL *s, int which);
1009 int tls1_setup_key_block(SSL *s);
1010 int tls1_enc(SSL *s, int snd);
1011 int tls1_final_finish_mac(SSL *s,
1012         const char *str, int slen, unsigned char *p);
1013 int tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *p);
1014 int tls1_mac(SSL *ssl, unsigned char *md, int snd);
1015 int tls1_generate_master_secret(SSL *s, unsigned char *out,
1016         unsigned char *p, int len);
1017 int tls1_alert_code(int code);
1018 int ssl3_alert_code(int code);
1019 int ssl_ok(SSL *s);
1020
1021 #ifndef OPENSSL_NO_ECDH
1022 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs);
1023 #endif
1024
1025 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
1026
1027 #ifndef OPENSSL_NO_EC
1028 int tls1_ec_curve_id2nid(int curve_id);
1029 int tls1_ec_nid2curve_id(int nid);
1030 #endif /* OPENSSL_NO_EC */
1031
1032 #ifndef OPENSSL_NO_TLSEXT
1033 unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *p, unsigned char *limit);
1034 unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *p, unsigned char *limit);
1035 int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n, int *al);
1036 int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n, int *al);
1037 int ssl_prepare_clienthello_tlsext(SSL *s);
1038 int ssl_prepare_serverhello_tlsext(SSL *s);
1039 int ssl_check_clienthello_tlsext(SSL *s);
1040 int ssl_check_serverhello_tlsext(SSL *s);
1041 #ifdef OPENSSL_NO_SHA256
1042 #define tlsext_tick_md  EVP_sha1
1043 #else
1044 #define tlsext_tick_md  EVP_sha256
1045 #endif
1046 int tls1_process_ticket(SSL *s, unsigned char *session_id, int len,
1047                                 const unsigned char *limit, SSL_SESSION **ret);
1048 #endif
1049 EVP_MD_CTX* ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md) ;
1050 void ssl_clear_hash_ctx(EVP_MD_CTX **hash);
1051 #endif