ssl/ssl_locl.h

   1
   2 /* ssl/ssl_locl.h */
   3 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   4  * All rights reserved.
   5  *
   6  * This package is an SSL implementation written
   7  * by Eric Young (eay@cryptsoft.com).
   8  * The implementation was written so as to conform with Netscapes SSL.
   9  *
  10  * This library is free for commercial and non-commercial use as long as
  11  * the following conditions are aheared to.  The following conditions
  12  * apply to all code found in this distribution, be it the RC4, RSA,
  13  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  14  * included with this distribution is covered by the same copyright terms
  15  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  16  *
  17  * Copyright remains Eric Young's, and as such any Copyright notices in
  18  * the code are not to be removed.
  19  * If this package is used in a product, Eric Young should be given attribution
  20  * as the author of the parts of the library used.
  21  * This can be in the form of a textual message at program startup or
  22  * in documentation (online or textual) provided with the package.
  23  *
  24  * Redistribution and use in source and binary forms, with or without
  25  * modification, are permitted provided that the following conditions
  26  * are met:
  27  * 1. Redistributions of source code must retain the copyright
  28  *    notice, this list of conditions and the following disclaimer.
  29  * 2. Redistributions in binary form must reproduce the above copyright
  30  *    notice, this list of conditions and the following disclaimer in the
  31  *    documentation and/or other materials provided with the distribution.
  32  * 3. All advertising materials mentioning features or use of this software
  33  *    must display the following acknowledgement:
  34  *    "This product includes cryptographic software written by
  35  *     Eric Young (eay@cryptsoft.com)"
  36  *    The word 'cryptographic' can be left out if the rouines from the library
  37  *    being used are not cryptographic related :-).
  38  * 4. If you include any Windows specific code (or a derivative thereof) from
  39  *    the apps directory (application code) you must include an acknowledgement:
  40  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  41  *
  42  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  43  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  44  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  45  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  46  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  47  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  48  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  49  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  50  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  51  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  52  * SUCH DAMAGE.
  53  *
  54  * The licence and distribution terms for any publically available version or
  55  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  56  * copied and put under another distribution licence
  57  * [including the GNU Public Licence.]
  58  */
  59 /* ====================================================================
  60  * Copyright (c) 1998-2006 The OpenSSL Project.  All rights reserved.
  61  *
  62  * Redistribution and use in source and binary forms, with or without
  63  * modification, are permitted provided that the following conditions
  64  * are met:
  65  *
  66  * 1. Redistributions of source code must retain the above copyright
  67  *    notice, this list of conditions and the following disclaimer.
  68  *
  69  * 2. Redistributions in binary form must reproduce the above copyright
  70  *    notice, this list of conditions and the following disclaimer in
  71  *    the documentation and/or other materials provided with the
  72  *    distribution.
  73  *
  74  * 3. All advertising materials mentioning features or use of this
  75  *    software must display the following acknowledgment:
  76  *    "This product includes software developed by the OpenSSL Project
  77  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
  78  *
  79  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  80  *    endorse or promote products derived from this software without
  81  *    prior written permission. For written permission, please contact
  82  *    openssl-core@openssl.org.
  83  *
  84  * 5. Products derived from this software may not be called "OpenSSL"
  85  *    nor may "OpenSSL" appear in their names without prior written
  86  *    permission of the OpenSSL Project.
  87  *
  88  * 6. Redistributions of any form whatsoever must retain the following
  89  *    acknowledgment:
  90  *    "This product includes software developed by the OpenSSL Project
  91  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
  92  *
  93  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  94  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  95  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  96  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  97  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  98  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  99  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 100  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 101  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 102  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 103  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 104  * OF THE POSSIBILITY OF SUCH DAMAGE.
 105  * ====================================================================
 106  *
 107  * This product includes cryptographic software written by Eric Young
 108  * (eay@cryptsoft.com).  This product includes software written by Tim
 109  * Hudson (tjh@cryptsoft.com).
 110  *
 111  */
 112 /* ====================================================================
 113  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
 114  * ECC cipher suite support in OpenSSL originally developed by
 115  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
 116  */
 117 /* ====================================================================
 118  * Copyright 2005 Nokia. All rights reserved.
 119  *
 120  * The portions of the attached software ("Contribution") is developed by
 121  * Nokia Corporation and is licensed pursuant to the OpenSSL open source
 122  * license.
 123  *
 124  * The Contribution, originally written by Mika Kousa and Pasi Eronen of
 125  * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
 126  * support (see RFC 4279) to OpenSSL.
 127  *
 128  * No patent licenses or other rights except those expressly stated in
 129  * the OpenSSL open source license shall be deemed granted or received
 130  * expressly, by implication, estoppel, or otherwise.
 131  *
 132  * No assurances are provided by Nokia that the Contribution does not
 133  * infringe the patent or other intellectual property rights of any third
 134  * party or that the license provides you with all the necessary rights
 135  * to make use of the Contribution.
 136  *
 137  * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
 138  * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
 139  * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
 140  * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
 141  * OTHERWISE.
 142  */
 143
 144 #ifndef HEADER_SSL_LOCL_H
 145 #define HEADER_SSL_LOCL_H
 146 #include <stdlib.h>
 147 #include <time.h>
 148 #include <string.h>
 149 #include <errno.h>
 150
 151 #include "e_os.h"
 152
 153 #include <openssl/buffer.h>
 154 #include <openssl/comp.h>
 155 #include <openssl/bio.h>
 156 #include <openssl/stack.h>
 157 #ifndef OPENSSL_NO_RSA
 158 #include <openssl/rsa.h>
 159 #endif
 160 #ifndef OPENSSL_NO_DSA
 161 #include <openssl/dsa.h>
 162 #endif
 163 #include <openssl/err.h>
 164 #include <openssl/ssl.h>
 165 #include <openssl/symhacks.h>
 166
 167 #ifdef OPENSSL_BUILD_SHLIBSSL
 168 # undef OPENSSL_EXTERN
 169 # define OPENSSL_EXTERN OPENSSL_EXPORT
 170 #endif
 171
 172 #define PKCS1_CHECK
 173
 174 #define c2l(c,l)        (l = ((unsigned long)(*((c)++)))     , \
 175                          l|=(((unsigned long)(*((c)++)))<< 8), \
 176                          l|=(((unsigned long)(*((c)++)))<<16), \
 177                          l|=(((unsigned long)(*((c)++)))<<24))
 178
 179 /* NOTE - c is not incremented as per c2l */
 180 #define c2ln(c,l1,l2,n) { \
 181                         c+=n; \
 182                         l1=l2=0; \
 183                         switch (n) { \
 184                         case 8: l2 =((unsigned long)(*(--(c))))<<24; \
 185                         case 7: l2|=((unsigned long)(*(--(c))))<<16; \
 186                         case 6: l2|=((unsigned long)(*(--(c))))<< 8; \
 187                         case 5: l2|=((unsigned long)(*(--(c))));     \
 188                         case 4: l1 =((unsigned long)(*(--(c))))<<24; \
 189                         case 3: l1|=((unsigned long)(*(--(c))))<<16; \
 190                         case 2: l1|=((unsigned long)(*(--(c))))<< 8; \
 191                         case 1: l1|=((unsigned long)(*(--(c))));     \
 192                                 } \
 193                         }
 194
 195 #define l2c(l,c)        (*((c)++)=(unsigned char)(((l)    )&0xff), \
 196                          *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
 197                          *((c)++)=(unsigned char)(((l)>>16)&0xff), \
 198                          *((c)++)=(unsigned char)(((l)>>24)&0xff))
 199
 200 #define n2l(c,l)        (l =((unsigned long)(*((c)++)))<<24, \
 201                          l|=((unsigned long)(*((c)++)))<<16, \
 202                          l|=((unsigned long)(*((c)++)))<< 8, \
 203                          l|=((unsigned long)(*((c)++))))
 204
 205 #define l2n(l,c)        (*((c)++)=(unsigned char)(((l)>>24)&0xff), \
 206                          *((c)++)=(unsigned char)(((l)>>16)&0xff), \
 207                          *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
 208                          *((c)++)=(unsigned char)(((l)    )&0xff))
 209
 210 #define l2n6(l,c)       (*((c)++)=(unsigned char)(((l)>>40)&0xff), \
 211                          *((c)++)=(unsigned char)(((l)>>32)&0xff), \
 212                          *((c)++)=(unsigned char)(((l)>>24)&0xff), \
 213                          *((c)++)=(unsigned char)(((l)>>16)&0xff), \
 214                          *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
 215                          *((c)++)=(unsigned char)(((l)    )&0xff))
 216
 217 #define n2l6(c,l)       (l =((BN_ULLONG)(*((c)++)))<<40, \
 218                          l|=((BN_ULLONG)(*((c)++)))<<32, \
 219                          l|=((BN_ULLONG)(*((c)++)))<<24, \
 220                          l|=((BN_ULLONG)(*((c)++)))<<16, \
 221                          l|=((BN_ULLONG)(*((c)++)))<< 8, \
 222                          l|=((BN_ULLONG)(*((c)++))))
 223
 224 /* NOTE - c is not incremented as per l2c */
 225 #define l2cn(l1,l2,c,n) { \
 226                         c+=n; \
 227                         switch (n) { \
 228                         case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
 229                         case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
 230                         case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
 231                         case 5: *(--(c))=(unsigned char)(((l2)    )&0xff); \
 232                         case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
 233                         case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
 234                         case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
 235                         case 1: *(--(c))=(unsigned char)(((l1)    )&0xff); \
 236                                 } \
 237                         }
 238
 239 #define n2s(c,s)        ((s=(((unsigned int)(c[0]))<< 8)| \
 240                             (((unsigned int)(c[1]))    )),c+=2)
 241 #define s2n(s,c)        ((c[0]=(unsigned char)(((s)>> 8)&0xff), \
 242                           c[1]=(unsigned char)(((s)    )&0xff)),c+=2)
 243
 244 #define n2l3(c,l)       ((l =(((unsigned long)(c[0]))<<16)| \
 245                              (((unsigned long)(c[1]))<< 8)| \
 246                              (((unsigned long)(c[2]))    )),c+=3)
 247
 248 #define l2n3(l,c)       ((c[0]=(unsigned char)(((l)>>16)&0xff), \
 249                           c[1]=(unsigned char)(((l)>> 8)&0xff), \
 250                           c[2]=(unsigned char)(((l)    )&0xff)),c+=3)
 251
 252 /* LOCAL STUFF */
 253
 254 #define SSL_DECRYPT     0
 255 #define SSL_ENCRYPT     1
 256
 257 #define TWO_BYTE_BIT    0x80
 258 #define SEC_ESC_BIT     0x40
 259 #define TWO_BYTE_MASK   0x7fff
 260 #define THREE_BYTE_MASK 0x3fff
 261
 262 #define INC32(a)        ((a)=((a)+1)&0xffffffffL)
 263 #define DEC32(a)        ((a)=((a)-1)&0xffffffffL)
 264 #define MAX_MAC_SIZE    20 /* up from 16 for SSLv3 */
 265
 266 /*
 267  * Define the Bitmasks for SSL_CIPHER.algorithms.
 268  * This bits are used packed as dense as possible. If new methods/ciphers
 269  * etc will be added, the bits a likely to change, so this information
 270  * is for internal library use only, even though SSL_CIPHER.algorithms
 271  * can be publicly accessed.
 272  * Use the according functions for cipher management instead.
 273  *
 274  * The bit mask handling in the selection and sorting scheme in
 275  * ssl_create_cipher_list() has only limited capabilities, reflecting
 276  * that the different entities within are mutually exclusive:
 277  * ONLY ONE BIT PER MASK CAN BE SET AT A TIME.
 278  */
 279 #define SSL_MKEY_MASK           0x080000FFL
 280 #define SSL_kRSA                0x00000001L /* RSA key exchange */
 281 #define SSL_kDHr                0x00000002L /* DH cert RSA CA cert */
 282 #define SSL_kDHd                0x00000004L /* DH cert DSA CA cert */
 283 #define SSL_kFZA                0x00000008L
 284 #define SSL_kEDH                0x00000010L /* tmp DH key no DH cert */
 285 #define SSL_kKRB5               0x00000020L /* Kerberos5 key exchange */
 286 #define SSL_kECDH               0x00000040L /* ECDH w/ long-term keys */
 287 #define SSL_kECDHE              0x00000080L /* ephemeral ECDH */
 288 #define SSL_EDH                 (SSL_kEDH|(SSL_AUTH_MASK^SSL_aNULL))
 289 #define SSL_kPSK                0x08000000L /* PSK */
 290
 291 #define SSL_AUTH_MASK           0x10007f00L
 292 #define SSL_aRSA                0x00000100L /* Authenticate with RSA */
 293 #define SSL_aDSS                0x00000200L /* Authenticate with DSS */
 294 #define SSL_DSS                 SSL_aDSS
 295 #define SSL_aFZA                0x00000400L
 296 #define SSL_aNULL               0x00000800L /* no Authenticate, ADH */
 297 #define SSL_aDH                 0x00001000L /* no Authenticate, ADH */
 298 #define SSL_aKRB5               0x00002000L /* Authenticate with KRB5 */
 299 #define SSL_aECDSA              0x00004000L /* Authenticate with ECDSA */
 300 #define SSL_aPSK                0x10000000L /* PSK */
 301
 302 #define SSL_NULL                (SSL_eNULL)
 303 #define SSL_ADH                 (SSL_kEDH|SSL_aNULL)
 304 #define SSL_RSA                 (SSL_kRSA|SSL_aRSA)
 305 #define SSL_DH                  (SSL_kDHr|SSL_kDHd|SSL_kEDH)
 306 #define SSL_ECDH                (SSL_kECDH|SSL_kECDHE)
 307 #define SSL_FZA                 (SSL_aFZA|SSL_kFZA|SSL_eFZA)
 308 #define SSL_KRB5                (SSL_kKRB5|SSL_aKRB5)
 309 #define SSL_PSK                 (SSL_kPSK|SSL_aPSK)
 310
 311 #define SSL_ENC_MASK            0x043F8000L
 312 #define SSL_DES                 0x00008000L
 313 #define SSL_3DES                0x00010000L
 314 #define SSL_RC4                 0x00020000L
 315 #define SSL_RC2                 0x00040000L
 316 #define SSL_IDEA                0x00080000L
 317 #define SSL_eFZA                0x00100000L
 318 #define SSL_eNULL               0x00200000L
 319 #define SSL_AES                 0x04000000L
 320
 321 #define SSL_MAC_MASK            0x00c00000L
 322 #define SSL_MD5                 0x00400000L
 323 #define SSL_SHA1                0x00800000L
 324 #define SSL_SHA                 (SSL_SHA1)
 325
 326 #define SSL_SSL_MASK            0x03000000L
 327 #define SSL_SSLV2               0x01000000L
 328 #define SSL_SSLV3               0x02000000L
 329 #define SSL_TLSV1               SSL_SSLV3       /* for now */
 330
 331 /* we have used 1fffffff - 3 bits left to go. */
 332
 333 /*
 334  * Export and cipher strength information. For each cipher we have to decide
 335  * whether it is exportable or not. This information is likely to change
 336  * over time, since the export control rules are no static technical issue.
 337  *
 338  * Independent of the export flag the cipher strength is sorted into classes.
 339  * SSL_EXP40 was denoting the 40bit US export limit of past times, which now
 340  * is at 56bit (SSL_EXP56). If the exportable cipher class is going to change
 341  * again (eg. to 64bit) the use of "SSL_EXP*" becomes blurred even more,
 342  * since SSL_EXP64 could be similar to SSL_LOW.
 343  * For this reason SSL_MICRO and SSL_MINI macros are included to widen the
 344  * namespace of SSL_LOW-SSL_HIGH to lower values. As development of speed
 345  * and ciphers goes, another extension to SSL_SUPER and/or SSL_ULTRA would
 346  * be possible.
 347  */
 348 #define SSL_EXP_MASK            0x00000003L
 349 #define SSL_NOT_EXP             0x00000001L
 350 #define SSL_EXPORT              0x00000002L
 351
 352 #define SSL_STRONG_MASK         0x000000fcL
 353 #define SSL_STRONG_NONE         0x00000004L
 354 #define SSL_EXP40               0x00000008L
 355 #define SSL_MICRO               (SSL_EXP40)
 356 #define SSL_EXP56               0x00000010L
 357 #define SSL_MINI                (SSL_EXP56)
 358 #define SSL_LOW                 0x00000020L
 359 #define SSL_MEDIUM              0x00000040L
 360 #define SSL_HIGH                0x00000080L
 361
 362 /* we have used 000000ff - 24 bits left to go */
 363
 364 /*
 365  * Macros to check the export status and cipher strength for export ciphers.
 366  * Even though the macros for EXPORT and EXPORT40/56 have similar names,
 367  * their meaning is different:
 368  * *_EXPORT macros check the 'exportable' status.
 369  * *_EXPORT40/56 macros are used to check whether a certain cipher strength
 370  *          is given.
 371  * Since the SSL_IS_EXPORT* and SSL_EXPORT* macros depend on the correct
 372  * algorithm structure element to be passed (algorithms, algo_strength) and no
 373  * typechecking can be done as they are all of type unsigned long, their
 374  * direct usage is discouraged.
 375  * Use the SSL_C_* macros instead.
 376  */
 377 #define SSL_IS_EXPORT(a)        ((a)&SSL_EXPORT)
 378 #define SSL_IS_EXPORT56(a)      ((a)&SSL_EXP56)
 379 #define SSL_IS_EXPORT40(a)      ((a)&SSL_EXP40)
 380 #define SSL_C_IS_EXPORT(c)      SSL_IS_EXPORT((c)->algo_strength)
 381 #define SSL_C_IS_EXPORT56(c)    SSL_IS_EXPORT56((c)->algo_strength)
 382 #define SSL_C_IS_EXPORT40(c)    SSL_IS_EXPORT40((c)->algo_strength)
 383
 384 #define SSL_EXPORT_KEYLENGTH(a,s)       (SSL_IS_EXPORT40(s) ? 5 : \
 385                                  ((a)&SSL_ENC_MASK) == SSL_DES ? 8 : 7)
 386 #define SSL_EXPORT_PKEYLENGTH(a) (SSL_IS_EXPORT40(a) ? 512 : 1024)
 387 #define SSL_C_EXPORT_KEYLENGTH(c)       SSL_EXPORT_KEYLENGTH((c)->algorithms, \
 388                                 (c)->algo_strength)
 389 #define SSL_C_EXPORT_PKEYLENGTH(c)      SSL_EXPORT_PKEYLENGTH((c)->algo_strength)
 390
 391
 392 #define SSL_ALL                 0xffffffffL
 393 #define SSL_ALL_CIPHERS         (SSL_MKEY_MASK|SSL_AUTH_MASK|SSL_ENC_MASK|\
 394                                 SSL_MAC_MASK)
 395 #define SSL_ALL_STRENGTHS       (SSL_EXP_MASK|SSL_STRONG_MASK)
 396
 397 /* Mostly for SSLv3 */
 398 #define SSL_PKEY_RSA_ENC        0
 399 #define SSL_PKEY_RSA_SIGN       1
 400 #define SSL_PKEY_DSA_SIGN       2
 401 #define SSL_PKEY_DH_RSA         3
 402 #define SSL_PKEY_DH_DSA         4
 403 #define SSL_PKEY_ECC            5
 404 #define SSL_PKEY_NUM            6
 405
 406 /* SSL_kRSA <- RSA_ENC | (RSA_TMP & RSA_SIGN) |
 407  *          <- (EXPORT & (RSA_ENC | RSA_TMP) & RSA_SIGN)
 408  * SSL_kDH  <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
 409  * SSL_kEDH <- RSA_ENC | RSA_SIGN | DSA_SIGN
 410  * SSL_aRSA <- RSA_ENC | RSA_SIGN
 411  * SSL_aDSS <- DSA_SIGN
 412  */
 413
 414 /*
 415 #define CERT_INVALID            0
 416 #define CERT_PUBLIC_KEY         1
 417 #define CERT_PRIVATE_KEY        2
 418 */
 419
 420 #ifndef OPENSSL_NO_EC
 421 /* From ECC-TLS draft, used in encoding the curve type in
 422  * ECParameters
 423  */
 424 #define EXPLICIT_PRIME_CURVE_TYPE  1
 425 #define EXPLICIT_CHAR2_CURVE_TYPE  2
 426 #define NAMED_CURVE_TYPE           3
 427 #endif  /* OPENSSL_NO_EC */
 428
 429 typedef struct cert_pkey_st
 430         {
 431         X509 *x509;
 432         EVP_PKEY *privatekey;
 433         } CERT_PKEY;
 434
 435 typedef struct cert_st
 436         {
 437         /* Current active set */
 438         CERT_PKEY *key; /* ALWAYS points to an element of the pkeys array
 439                          * Probably it would make more sense to store
 440                          * an index, not a pointer. */
 441
 442         /* The following masks are for the key and auth
 443          * algorithms that are supported by the certs below */
 444         int valid;
 445         unsigned long mask;
 446         unsigned long export_mask;
 447 #ifndef OPENSSL_NO_RSA
 448         RSA *rsa_tmp;
 449         RSA *(*rsa_tmp_cb)(SSL *ssl,int is_export,int keysize);
 450 #endif
 451 #ifndef OPENSSL_NO_DH
 452         DH *dh_tmp;
 453         DH *(*dh_tmp_cb)(SSL *ssl,int is_export,int keysize);
 454 #endif
 455 #ifndef OPENSSL_NO_ECDH
 456         EC_KEY *ecdh_tmp;
 457         /* Callback for generating ephemeral ECDH keys */
 458         EC_KEY *(*ecdh_tmp_cb)(SSL *ssl,int is_export,int keysize);
 459 #endif
 460
 461         CERT_PKEY pkeys[SSL_PKEY_NUM];
 462
 463         int references; /* >1 only if SSL_copy_session_id is used */
 464         } CERT;
 465
 466
 467 typedef struct sess_cert_st
 468         {
 469         STACK_OF(X509) *cert_chain; /* as received from peer (not for SSL2) */
 470
 471         /* The 'peer_...' members are used only by clients. */
 472         int peer_cert_type;
 473
 474         CERT_PKEY *peer_key; /* points to an element of peer_pkeys (never NULL!) */
 475         CERT_PKEY peer_pkeys[SSL_PKEY_NUM];
 476         /* Obviously we don't have the private keys of these,
 477          * so maybe we shouldn't even use the CERT_PKEY type here. */
 478
 479 #ifndef OPENSSL_NO_RSA
 480         RSA *peer_rsa_tmp; /* not used for SSL 2 */
 481 #endif
 482 #ifndef OPENSSL_NO_DH
 483         DH *peer_dh_tmp; /* not used for SSL 2 */
 484 #endif
 485 #ifndef OPENSSL_NO_ECDH
 486         EC_KEY *peer_ecdh_tmp;
 487 #endif
 488
 489         int references; /* actually always 1 at the moment */
 490         } SESS_CERT;
 491
 492
 493 /*#define MAC_DEBUG     */
 494
 495 /*#define ERR_DEBUG     */
 496 /*#define ABORT_DEBUG   */
 497 /*#define PKT_DEBUG 1   */
 498 /*#define DES_DEBUG     */
 499 /*#define DES_OFB_DEBUG */
 500 /*#define SSL_DEBUG     */
 501 /*#define RSA_DEBUG     */
 502 /*#define IDEA_DEBUG    */
 503
 504 #define FP_ICC  (int (*)(const void *,const void *))
 505 #define ssl_put_cipher_by_char(ssl,ciph,ptr) \
 506                 ((ssl)->method->put_cipher_by_char((ciph),(ptr)))
 507 #define ssl_get_cipher_by_char(ssl,ptr) \
 508                 ((ssl)->method->get_cipher_by_char(ptr))
 509
 510 /* This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff
 511  * It is a bit of a mess of functions, but hell, think of it as
 512  * an opaque structure :-) */
 513 typedef struct ssl3_enc_method
 514         {
 515         int (*enc)(SSL *, int);
 516         int (*mac)(SSL *, unsigned char *, int);
 517         int (*setup_key_block)(SSL *);
 518         int (*generate_master_secret)(SSL *, unsigned char *, unsigned char *, int);
 519         int (*change_cipher_state)(SSL *, int);
 520         int (*final_finish_mac)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char *, int, unsigned char *);
 521         int finish_mac_length;
 522         int (*cert_verify_mac)(SSL *, EVP_MD_CTX *, unsigned char *);
 523         const char *client_finished_label;
 524         int client_finished_label_len;
 525         const char *server_finished_label;
 526         int server_finished_label_len;
 527         int (*alert_value)(int);
 528         } SSL3_ENC_METHOD;
 529
 530 /* Used for holding the relevant compression methods loaded into SSL_CTX */
 531 typedef struct ssl3_comp_st
 532         {
 533         int comp_id;    /* The identifier byte for this compression type */
 534         char *name;     /* Text name used for the compression type */
 535         COMP_METHOD *method; /* The method :-) */
 536         } SSL3_COMP;
 537
 538 extern SSL3_ENC_METHOD ssl3_undef_enc_method;
 539 OPENSSL_EXTERN SSL_CIPHER ssl2_ciphers[];
 540 OPENSSL_EXTERN SSL_CIPHER ssl3_ciphers[];
 541
 542
 543 SSL_METHOD *ssl_bad_method(int ver);
 544
 545 extern SSL3_ENC_METHOD TLSv1_enc_data;
 546 extern SSL3_ENC_METHOD SSLv3_enc_data;
 547 extern SSL3_ENC_METHOD DTLSv1_enc_data;
 548
 549 #define IMPLEMENT_tls1_meth_func(func_name, s_accept, s_connect, s_get_meth) \
 550 const SSL_METHOD *func_name(void)  \
 551         { \
 552         static const SSL_METHOD func_name##_data= { \
 553                 TLS1_VERSION, \
 554                 tls1_new, \
 555                 tls1_clear, \
 556                 tls1_free, \
 557                 s_accept, \
 558                 s_connect, \
 559                 ssl3_read, \
 560                 ssl3_peek, \
 561                 ssl3_write, \
 562                 ssl3_shutdown, \
 563                 ssl3_renegotiate, \
 564                 ssl3_renegotiate_check, \
 565                 ssl3_get_message, \
 566                 ssl3_read_bytes, \
 567                 ssl3_write_bytes, \
 568                 ssl3_dispatch_alert, \
 569                 ssl3_ctrl, \
 570                 ssl3_ctx_ctrl, \
 571                 ssl3_get_cipher_by_char, \
 572                 ssl3_put_cipher_by_char, \
 573                 ssl3_pending, \
 574                 ssl3_num_ciphers, \
 575                 ssl3_get_cipher, \
 576                 s_get_meth, \
 577                 tls1_default_timeout, \
 578                 &TLSv1_enc_data, \
 579                 ssl_undefined_void_function, \
 580                 ssl3_callback_ctrl, \
 581                 ssl3_ctx_callback_ctrl, \
 582         }; \
 583         return &func_name##_data; \
 584         }
 585
 586 #define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect, s_get_meth) \
 587 const SSL_METHOD *func_name(void)  \
 588         { \
 589         static const SSL_METHOD func_name##_data= { \
 590                 SSL3_VERSION, \
 591                 ssl3_new, \
 592                 ssl3_clear, \
 593                 ssl3_free, \
 594                 s_accept, \
 595                 s_connect, \
 596                 ssl3_read, \
 597                 ssl3_peek, \
 598                 ssl3_write, \
 599                 ssl3_shutdown, \
 600                 ssl3_renegotiate, \
 601                 ssl3_renegotiate_check, \
 602                 ssl3_get_message, \
 603                 ssl3_read_bytes, \
 604                 ssl3_write_bytes, \
 605                 ssl3_dispatch_alert, \
 606                 ssl3_ctrl, \
 607                 ssl3_ctx_ctrl, \
 608                 ssl3_get_cipher_by_char, \
 609                 ssl3_put_cipher_by_char, \
 610                 ssl3_pending, \
 611                 ssl3_num_ciphers, \
 612                 ssl3_get_cipher, \
 613                 s_get_meth, \
 614                 ssl3_default_timeout, \
 615                 &SSLv3_enc_data, \
 616                 ssl_undefined_void_function, \
 617                 ssl3_callback_ctrl, \
 618                 ssl3_ctx_callback_ctrl, \
 619         }; \
 620         return &func_name##_data; \
 621         }
 622
 623 #define IMPLEMENT_ssl23_meth_func(func_name, s_accept, s_connect, s_get_meth) \
 624 const SSL_METHOD *func_name(void)  \
 625         { \
 626         static const SSL_METHOD func_name##_data= { \
 627         TLS1_VERSION, \
 628         tls1_new, \
 629         tls1_clear, \
 630         tls1_free, \
 631         s_accept, \
 632         s_connect, \
 633         ssl23_read, \
 634         ssl23_peek, \
 635         ssl23_write, \
 636         ssl_undefined_function, \
 637         ssl_undefined_function, \
 638         ssl_ok, \
 639         ssl3_get_message, \
 640         ssl3_read_bytes, \
 641         ssl3_write_bytes, \
 642         ssl3_dispatch_alert, \
 643         ssl3_ctrl, \
 644         ssl3_ctx_ctrl, \
 645         ssl23_get_cipher_by_char, \
 646         ssl23_put_cipher_by_char, \
 647         ssl_undefined_const_function, \
 648         ssl23_num_ciphers, \
 649         ssl23_get_cipher, \
 650         s_get_meth, \
 651         ssl23_default_timeout, \
 652         &ssl3_undef_enc_method, \
 653         ssl_undefined_void_function, \
 654         ssl3_callback_ctrl, \
 655         ssl3_ctx_callback_ctrl, \
 656         }; \
 657         return &func_name##_data; \
 658         }
 659
 660 #define IMPLEMENT_ssl2_meth_func(func_name, s_accept, s_connect, s_get_meth) \
 661 const SSL_METHOD *func_name(void)  \
 662         { \
 663         static const SSL_METHOD func_name##_data= { \
 664                 SSL2_VERSION, \
 665                 ssl2_new,       /* local */ \
 666                 ssl2_clear,     /* local */ \
 667                 ssl2_free,      /* local */ \
 668                 s_accept, \
 669                 s_connect, \
 670                 ssl2_read, \
 671                 ssl2_peek, \
 672                 ssl2_write, \
 673                 ssl2_shutdown, \
 674                 ssl_ok, /* NULL - renegotiate */ \
 675                 ssl_ok, /* NULL - check renegotiate */ \
 676                 NULL, /* NULL - ssl_get_message */ \
 677                 NULL, /* NULL - ssl_get_record */ \
 678                 NULL, /* NULL - ssl_write_bytes */ \
 679                 NULL, /* NULL - dispatch_alert */ \
 680                 ssl2_ctrl,      /* local */ \
 681                 ssl2_ctx_ctrl,  /* local */ \
 682                 ssl2_get_cipher_by_char, \
 683                 ssl2_put_cipher_by_char, \
 684                 ssl2_pending, \
 685                 ssl2_num_ciphers, \
 686                 ssl2_get_cipher, \
 687                 s_get_meth, \
 688                 ssl2_default_timeout, \
 689                 &ssl3_undef_enc_method, \
 690                 ssl_undefined_void_function, \
 691                 ssl2_callback_ctrl,     /* local */ \
 692                 ssl2_ctx_callback_ctrl, /* local */ \
 693         }; \
 694         return &func_name##_data; \
 695         }
 696
 697 #define IMPLEMENT_dtls1_meth_func(func_name, s_accept, s_connect, s_get_meth) \
 698 const SSL_METHOD *func_name(void)  \
 699         { \
 700         static const SSL_METHOD func_name##_data= { \
 701                 DTLS1_VERSION, \
 702                 dtls1_new, \
 703                 dtls1_clear, \
 704                 dtls1_free, \
 705                 s_accept, \
 706                 s_connect, \
 707                 ssl3_read, \
 708                 ssl3_peek, \
 709                 ssl3_write, \
 710                 ssl3_shutdown, \
 711                 ssl3_renegotiate, \
 712                 ssl3_renegotiate_check, \
 713                 dtls1_get_message, \
 714                 dtls1_read_bytes, \
 715                 dtls1_write_app_data_bytes, \
 716                 dtls1_dispatch_alert, \
 717                 ssl3_ctrl, \
 718                 ssl3_ctx_ctrl, \
 719                 ssl3_get_cipher_by_char, \
 720                 ssl3_put_cipher_by_char, \
 721                 ssl3_pending, \
 722                 ssl3_num_ciphers, \
 723                 ssl3_get_cipher, \
 724                 s_get_meth, \
 725                 dtls1_default_timeout, \
 726                 &DTLSv1_enc_data, \
 727                 ssl_undefined_void_function, \
 728                 ssl3_callback_ctrl, \
 729                 ssl3_ctx_callback_ctrl, \
 730         }; \
 731         return &func_name##_data; \
 732         }
 733
 734 void ssl_clear_cipher_ctx(SSL *s);
 735 int ssl_clear_bad_session(SSL *s);
 736 CERT *ssl_cert_new(void);
 737 CERT *ssl_cert_dup(CERT *cert);
 738 int ssl_cert_inst(CERT **o);
 739 void ssl_cert_free(CERT *c);
 740 SESS_CERT *ssl_sess_cert_new(void);
 741 void ssl_sess_cert_free(SESS_CERT *sc);
 742 int ssl_set_peer_cert_type(SESS_CERT *c, int type);
 743 int ssl_get_new_session(SSL *s, int session);
 744 int ssl_get_prev_session(SSL *s, unsigned char *session,int len);
 745 int ssl_cipher_id_cmp(const SSL_CIPHER *a,const SSL_CIPHER *b);
 746 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
 747                         const SSL_CIPHER * const *bp);
 748 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
 749                                                STACK_OF(SSL_CIPHER) **skp);
 750 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
 751                              int (*put_cb)(const SSL_CIPHER *, unsigned char *));
 752 STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth,
 753                                              STACK_OF(SSL_CIPHER) **pref,
 754                                              STACK_OF(SSL_CIPHER) **sorted,
 755                                              const char *rule_str);
 756 void ssl_update_cache(SSL *s, int mode);
 757 int ssl_cipher_get_evp(const SSL_SESSION *s,const EVP_CIPHER **enc,
 758                        const EVP_MD **md,SSL_COMP **comp);
 759 int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk);
 760 int ssl_undefined_function(SSL *s);
 761 int ssl_undefined_void_function(void);
 762 int ssl_undefined_const_function(const SSL *s);
 763 X509 *ssl_get_server_send_cert(SSL *);
 764 EVP_PKEY *ssl_get_sign_pkey(SSL *,SSL_CIPHER *);
 765 int ssl_cert_type(X509 *x,EVP_PKEY *pkey);
 766 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher);
 767 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
 768 int ssl_verify_alarm_type(long type);
 769 void ssl_load_ciphers(void);
 770
 771 int ssl2_enc_init(SSL *s, int client);
 772 int ssl2_generate_key_material(SSL *s);
 773 void ssl2_enc(SSL *s,int send_data);
 774 void ssl2_mac(SSL *s,unsigned char *mac,int send_data);
 775 SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p);
 776 int ssl2_put_cipher_by_char(const SSL_CIPHER *c,unsigned char *p);
 777 int ssl2_part_read(SSL *s, unsigned long f, int i);
 778 int ssl2_do_write(SSL *s);
 779 int ssl2_set_certificate(SSL *s, int type, int len, const unsigned char *data);
 780 void ssl2_return_error(SSL *s,int reason);
 781 void ssl2_write_error(SSL *s);
 782 int ssl2_num_ciphers(void);
 783 SSL_CIPHER *ssl2_get_cipher(unsigned int u);
 784 int     ssl2_new(SSL *s);
 785 void    ssl2_free(SSL *s);
 786 int     ssl2_accept(SSL *s);
 787 int     ssl2_connect(SSL *s);
 788 int     ssl2_read(SSL *s, void *buf, int len);
 789 int     ssl2_peek(SSL *s, void *buf, int len);
 790 int     ssl2_write(SSL *s, const void *buf, int len);
 791 int     ssl2_shutdown(SSL *s);
 792 void    ssl2_clear(SSL *s);
 793 long    ssl2_ctrl(SSL *s,int cmd, long larg, void *parg);
 794 long    ssl2_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg);
 795 long    ssl2_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
 796 long    ssl2_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)(void));
 797 int     ssl2_pending(const SSL *s);
 798 long    ssl2_default_timeout(void );
 799
 800 SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
 801 int ssl3_put_cipher_by_char(const SSL_CIPHER *c,unsigned char *p);
 802 void ssl3_init_finished_mac(SSL *s);
 803 int ssl3_send_server_certificate(SSL *s);
 804 int ssl3_get_finished(SSL *s,int state_a,int state_b);
 805 int ssl3_setup_key_block(SSL *s);
 806 int ssl3_send_change_cipher_spec(SSL *s,int state_a,int state_b);
 807 int ssl3_change_cipher_state(SSL *s,int which);
 808 void ssl3_cleanup_key_block(SSL *s);
 809 int ssl3_do_write(SSL *s,int type);
 810 void ssl3_send_alert(SSL *s,int level, int desc);
 811 int ssl3_generate_master_secret(SSL *s, unsigned char *out,
 812         unsigned char *p, int len);
 813 int ssl3_get_req_cert_type(SSL *s,unsigned char *p);
 814 long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
 815 int ssl3_send_finished(SSL *s, int a, int b, const char *sender,int slen);
 816 int ssl3_num_ciphers(void);
 817 SSL_CIPHER *ssl3_get_cipher(unsigned int u);
 818 int ssl3_renegotiate(SSL *ssl);
 819 int ssl3_renegotiate_check(SSL *ssl);
 820 int ssl3_dispatch_alert(SSL *s);
 821 int ssl3_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
 822 int ssl3_write_bytes(SSL *s, int type, const void *buf, int len);
 823 int ssl3_final_finish_mac(SSL *s, EVP_MD_CTX *ctx1, EVP_MD_CTX *ctx2,
 824         const char *sender, int slen,unsigned char *p);
 825 int ssl3_cert_verify_mac(SSL *s, EVP_MD_CTX *in, unsigned char *p);
 826 void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len);
 827 int ssl3_enc(SSL *s, int send_data);
 828 int ssl3_mac(SSL *ssl, unsigned char *md, int send_data);
 829 unsigned long ssl3_output_cert_chain(SSL *s, X509 *x);
 830 SSL_CIPHER *ssl3_choose_cipher(SSL *ssl,STACK_OF(SSL_CIPHER) *clnt,
 831                                STACK_OF(SSL_CIPHER) *srvr);
 832 int     ssl3_setup_buffers(SSL *s);
 833 int     ssl3_new(SSL *s);
 834 void    ssl3_free(SSL *s);
 835 int     ssl3_accept(SSL *s);
 836 int     ssl3_connect(SSL *s);
 837 int     ssl3_read(SSL *s, void *buf, int len);
 838 int     ssl3_peek(SSL *s, void *buf, int len);
 839 int     ssl3_write(SSL *s, const void *buf, int len);
 840 int     ssl3_shutdown(SSL *s);
 841 void    ssl3_clear(SSL *s);
 842 long    ssl3_ctrl(SSL *s,int cmd, long larg, void *parg);
 843 long    ssl3_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg);
 844 long    ssl3_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
 845 long    ssl3_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)(void));
 846 int     ssl3_pending(const SSL *s);
 847
 848 void ssl3_record_sequence_update(unsigned char *seq);
 849 int ssl3_do_change_cipher_spec(SSL *ssl);
 850 long ssl3_default_timeout(void );
 851
 852 int ssl23_num_ciphers(void );
 853 SSL_CIPHER *ssl23_get_cipher(unsigned int u);
 854 int ssl23_read(SSL *s, void *buf, int len);
 855 int ssl23_peek(SSL *s, void *buf, int len);
 856 int ssl23_write(SSL *s, const void *buf, int len);
 857 int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
 858 SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p);
 859 long ssl23_default_timeout(void );
 860
 861 long tls1_default_timeout(void);
 862 int dtls1_do_write(SSL *s,int type);
 863 int ssl3_read_n(SSL *s, int n, int max, int extend);
 864 int dtls1_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
 865 int ssl3_do_compress(SSL *ssl);
 866 int ssl3_do_uncompress(SSL *ssl);
 867 int ssl3_write_pending(SSL *s, int type, const unsigned char *buf,
 868         unsigned int len);
 869 unsigned char *dtls1_set_message_header(SSL *s,
 870         unsigned char *p, unsigned char mt,     unsigned long len,
 871         unsigned long frag_off, unsigned long frag_len);
 872
 873 int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len);
 874 int dtls1_write_bytes(SSL *s, int type, const void *buf, int len);
 875
 876 int dtls1_send_change_cipher_spec(SSL *s, int a, int b);
 877 int dtls1_send_finished(SSL *s, int a, int b, const char *sender, int slen);
 878 unsigned long dtls1_output_cert_chain(SSL *s, X509 *x);
 879 int dtls1_read_failed(SSL *s, int code);
 880 int dtls1_buffer_message(SSL *s, int ccs);
 881 int dtls1_retransmit_message(SSL *s, unsigned short seq,
 882         unsigned long frag_off, int *found);
 883 void dtls1_clear_record_buffer(SSL *s);
 884 void dtls1_get_message_header(unsigned char *data, struct hm_header_st *msg_hdr);
 885 void dtls1_get_ccs_header(unsigned char *data, struct ccs_header_st *ccs_hdr);
 886 void dtls1_reset_seq_numbers(SSL *s, int rw);
 887 long dtls1_default_timeout(void);
 888
 889
 890 /* some client-only functions */
 891 int ssl3_client_hello(SSL *s);
 892 int ssl3_get_server_hello(SSL *s);
 893 int ssl3_get_certificate_request(SSL *s);
 894 int ssl3_get_server_done(SSL *s);
 895 int ssl3_send_client_verify(SSL *s);
 896 int ssl3_send_client_certificate(SSL *s);
 897 int ssl3_send_client_key_exchange(SSL *s);
 898 int ssl3_get_key_exchange(SSL *s);
 899 int ssl3_get_server_certificate(SSL *s);
 900 int ssl3_check_cert_and_algorithm(SSL *s);
 901
 902 int dtls1_client_hello(SSL *s);
 903 int dtls1_send_client_certificate(SSL *s);
 904 int dtls1_send_client_key_exchange(SSL *s);
 905 int dtls1_send_client_verify(SSL *s);
 906
 907 /* some server-only functions */
 908 int ssl3_get_client_hello(SSL *s);
 909 int ssl3_send_server_hello(SSL *s);
 910 int ssl3_send_hello_request(SSL *s);
 911 int ssl3_send_server_key_exchange(SSL *s);
 912 int ssl3_send_certificate_request(SSL *s);
 913 int ssl3_send_server_done(SSL *s);
 914 int ssl3_check_client_hello(SSL *s);
 915 int ssl3_get_client_certificate(SSL *s);
 916 int ssl3_get_client_key_exchange(SSL *s);
 917 int ssl3_get_cert_verify(SSL *s);
 918
 919 int dtls1_send_hello_request(SSL *s);
 920 int dtls1_send_server_hello(SSL *s);
 921 int dtls1_send_server_certificate(SSL *s);
 922 int dtls1_send_server_key_exchange(SSL *s);
 923 int dtls1_send_certificate_request(SSL *s);
 924 int dtls1_send_server_done(SSL *s);
 925
 926
 927
 928 int ssl23_accept(SSL *s);
 929 int ssl23_connect(SSL *s);
 930 int ssl23_read_bytes(SSL *s, int n);
 931 int ssl23_write_bytes(SSL *s);
 932
 933 int tls1_new(SSL *s);
 934 void tls1_free(SSL *s);
 935 void tls1_clear(SSL *s);
 936 long tls1_ctrl(SSL *s,int cmd, long larg, void *parg);
 937 long tls1_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
 938
 939 int dtls1_new(SSL *s);
 940 int     dtls1_accept(SSL *s);
 941 int     dtls1_connect(SSL *s);
 942 void dtls1_free(SSL *s);
 943 void dtls1_clear(SSL *s);
 944 long dtls1_ctrl(SSL *s,int cmd, long larg, void *parg);
 945
 946 long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
 947 int dtls1_get_record(SSL *s);
 948 int do_dtls1_write(SSL *s, int type, const unsigned char *buf,
 949         unsigned int len, int create_empty_fragement);
 950 int dtls1_dispatch_alert(SSL *s);
 951 int dtls1_enc(SSL *s, int snd);
 952
 953 int ssl_init_wbio_buffer(SSL *s, int push);
 954 void ssl_free_wbio_buffer(SSL *s);
 955
 956 int tls1_change_cipher_state(SSL *s, int which);
 957 int tls1_setup_key_block(SSL *s);
 958 int tls1_enc(SSL *s, int snd);
 959 int tls1_final_finish_mac(SSL *s, EVP_MD_CTX *in1_ctx, EVP_MD_CTX *in2_ctx,
 960         const char *str, int slen, unsigned char *p);
 961 int tls1_cert_verify_mac(SSL *s, EVP_MD_CTX *in, unsigned char *p);
 962 int tls1_mac(SSL *ssl, unsigned char *md, int snd);
 963 int tls1_generate_master_secret(SSL *s, unsigned char *out,
 964         unsigned char *p, int len);
 965 int tls1_alert_code(int code);
 966 int ssl3_alert_code(int code);
 967 int ssl_ok(SSL *s);
 968
 969 int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs);
 970
 971 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
 972
 973 #ifndef OPENSSL_NO_TLSEXT
 974 unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *p, unsigned char *limit);
 975 unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *p, unsigned char *limit);
 976 int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n, int *al);
 977 int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n, int *al);
 978 int ssl_check_tlsext(SSL *s, int is_server);
 979 #endif
 980 #endif