ssl_locl.h revision 296341
1/* ssl/ssl_locl.h */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to.  The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 *    notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 *    notice, this list of conditions and the following disclaimer in the
30 *    documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 *    must display the following acknowledgement:
33 *    "This product includes cryptographic software written by
34 *     Eric Young (eay@cryptsoft.com)"
35 *    The word 'cryptographic' can be left out if the rouines from the library
36 *    being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 *    the apps directory (application code) you must include an acknowledgement:
39 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed.  i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58/* ====================================================================
59 * Copyright (c) 1998-2007 The OpenSSL Project.  All rights reserved.
60 *
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
63 * are met:
64 *
65 * 1. Redistributions of source code must retain the above copyright
66 *    notice, this list of conditions and the following disclaimer.
67 *
68 * 2. Redistributions in binary form must reproduce the above copyright
69 *    notice, this list of conditions and the following disclaimer in
70 *    the documentation and/or other materials provided with the
71 *    distribution.
72 *
73 * 3. All advertising materials mentioning features or use of this
74 *    software must display the following acknowledgment:
75 *    "This product includes software developed by the OpenSSL Project
76 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
77 *
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 *    endorse or promote products derived from this software without
80 *    prior written permission. For written permission, please contact
81 *    openssl-core@openssl.org.
82 *
83 * 5. Products derived from this software may not be called "OpenSSL"
84 *    nor may "OpenSSL" appear in their names without prior written
85 *    permission of the OpenSSL Project.
86 *
87 * 6. Redistributions of any form whatsoever must retain the following
88 *    acknowledgment:
89 *    "This product includes software developed by the OpenSSL Project
90 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
91 *
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
105 *
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com).  This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
109 *
110 */
111/* ====================================================================
112 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
113 * ECC cipher suite support in OpenSSL originally developed by
114 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
115 */
116/* ====================================================================
117 * Copyright 2005 Nokia. All rights reserved.
118 *
119 * The portions of the attached software ("Contribution") is developed by
120 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
121 * license.
122 *
123 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
124 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
125 * support (see RFC 4279) to OpenSSL.
126 *
127 * No patent licenses or other rights except those expressly stated in
128 * the OpenSSL open source license shall be deemed granted or received
129 * expressly, by implication, estoppel, or otherwise.
130 *
131 * No assurances are provided by Nokia that the Contribution does not
132 * infringe the patent or other intellectual property rights of any third
133 * party or that the license provides you with all the necessary rights
134 * to make use of the Contribution.
135 *
136 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
137 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
138 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
139 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
140 * OTHERWISE.
141 */
142
143#ifndef HEADER_SSL_LOCL_H
144# define HEADER_SSL_LOCL_H
145# include <stdlib.h>
146# include <time.h>
147# include <string.h>
148# include <errno.h>
149
150# include "e_os.h"
151
152# include <openssl/buffer.h>
153# ifndef OPENSSL_NO_COMP
154#  include <openssl/comp.h>
155# endif
156# include <openssl/bio.h>
157# include <openssl/stack.h>
158# ifndef OPENSSL_NO_RSA
159#  include <openssl/rsa.h>
160# endif
161# ifndef OPENSSL_NO_DSA
162#  include <openssl/dsa.h>
163# endif
164# include <openssl/err.h>
165# include <openssl/ssl.h>
166# include <openssl/symhacks.h>
167
168# ifdef OPENSSL_BUILD_SHLIBSSL
169#  undef OPENSSL_EXTERN
170#  define OPENSSL_EXTERN OPENSSL_EXPORT
171# endif
172
173# undef PKCS1_CHECK
174
175# define c2l(c,l)        (l = ((unsigned long)(*((c)++)))     , \
176                         l|=(((unsigned long)(*((c)++)))<< 8), \
177                         l|=(((unsigned long)(*((c)++)))<<16), \
178                         l|=(((unsigned long)(*((c)++)))<<24))
179
180/* NOTE - c is not incremented as per c2l */
181# define c2ln(c,l1,l2,n) { \
182                        c+=n; \
183                        l1=l2=0; \
184                        switch (n) { \
185                        case 8: l2 =((unsigned long)(*(--(c))))<<24; \
186                        case 7: l2|=((unsigned long)(*(--(c))))<<16; \
187                        case 6: l2|=((unsigned long)(*(--(c))))<< 8; \
188                        case 5: l2|=((unsigned long)(*(--(c))));     \
189                        case 4: l1 =((unsigned long)(*(--(c))))<<24; \
190                        case 3: l1|=((unsigned long)(*(--(c))))<<16; \
191                        case 2: l1|=((unsigned long)(*(--(c))))<< 8; \
192                        case 1: l1|=((unsigned long)(*(--(c))));     \
193                                } \
194                        }
195
196# define l2c(l,c)        (*((c)++)=(unsigned char)(((l)    )&0xff), \
197                         *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
198                         *((c)++)=(unsigned char)(((l)>>16)&0xff), \
199                         *((c)++)=(unsigned char)(((l)>>24)&0xff))
200
201# define n2l(c,l)        (l =((unsigned long)(*((c)++)))<<24, \
202                         l|=((unsigned long)(*((c)++)))<<16, \
203                         l|=((unsigned long)(*((c)++)))<< 8, \
204                         l|=((unsigned long)(*((c)++))))
205
206# define l2n(l,c)        (*((c)++)=(unsigned char)(((l)>>24)&0xff), \
207                         *((c)++)=(unsigned char)(((l)>>16)&0xff), \
208                         *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
209                         *((c)++)=(unsigned char)(((l)    )&0xff))
210
211# define l2n6(l,c)       (*((c)++)=(unsigned char)(((l)>>40)&0xff), \
212                         *((c)++)=(unsigned char)(((l)>>32)&0xff), \
213                         *((c)++)=(unsigned char)(((l)>>24)&0xff), \
214                         *((c)++)=(unsigned char)(((l)>>16)&0xff), \
215                         *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
216                         *((c)++)=(unsigned char)(((l)    )&0xff))
217
218# define l2n8(l,c)       (*((c)++)=(unsigned char)(((l)>>56)&0xff), \
219                         *((c)++)=(unsigned char)(((l)>>48)&0xff), \
220                         *((c)++)=(unsigned char)(((l)>>40)&0xff), \
221                         *((c)++)=(unsigned char)(((l)>>32)&0xff), \
222                         *((c)++)=(unsigned char)(((l)>>24)&0xff), \
223                         *((c)++)=(unsigned char)(((l)>>16)&0xff), \
224                         *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
225                         *((c)++)=(unsigned char)(((l)    )&0xff))
226
227# define n2l6(c,l)       (l =((BN_ULLONG)(*((c)++)))<<40, \
228                         l|=((BN_ULLONG)(*((c)++)))<<32, \
229                         l|=((BN_ULLONG)(*((c)++)))<<24, \
230                         l|=((BN_ULLONG)(*((c)++)))<<16, \
231                         l|=((BN_ULLONG)(*((c)++)))<< 8, \
232                         l|=((BN_ULLONG)(*((c)++))))
233
234/* NOTE - c is not incremented as per l2c */
235# define l2cn(l1,l2,c,n) { \
236                        c+=n; \
237                        switch (n) { \
238                        case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
239                        case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
240                        case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
241                        case 5: *(--(c))=(unsigned char)(((l2)    )&0xff); \
242                        case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
243                        case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
244                        case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
245                        case 1: *(--(c))=(unsigned char)(((l1)    )&0xff); \
246                                } \
247                        }
248
249# define n2s(c,s)        ((s=(((unsigned int)(c[0]))<< 8)| \
250                            (((unsigned int)(c[1]))    )),c+=2)
251# define s2n(s,c)        ((c[0]=(unsigned char)(((s)>> 8)&0xff), \
252                          c[1]=(unsigned char)(((s)    )&0xff)),c+=2)
253
254# define n2l3(c,l)       ((l =(((unsigned long)(c[0]))<<16)| \
255                             (((unsigned long)(c[1]))<< 8)| \
256                             (((unsigned long)(c[2]))    )),c+=3)
257
258# define l2n3(l,c)       ((c[0]=(unsigned char)(((l)>>16)&0xff), \
259                          c[1]=(unsigned char)(((l)>> 8)&0xff), \
260                          c[2]=(unsigned char)(((l)    )&0xff)),c+=3)
261
262/* LOCAL STUFF */
263
264# define SSL_DECRYPT     0
265# define SSL_ENCRYPT     1
266
267# define TWO_BYTE_BIT    0x80
268# define SEC_ESC_BIT     0x40
269# define TWO_BYTE_MASK   0x7fff
270# define THREE_BYTE_MASK 0x3fff
271
272# define INC32(a)        ((a)=((a)+1)&0xffffffffL)
273# define DEC32(a)        ((a)=((a)-1)&0xffffffffL)
274# define MAX_MAC_SIZE    20     /* up from 16 for SSLv3 */
275
276/*
277 * Define the Bitmasks for SSL_CIPHER.algorithms.
278 * This bits are used packed as dense as possible. If new methods/ciphers
279 * etc will be added, the bits a likely to change, so this information
280 * is for internal library use only, even though SSL_CIPHER.algorithms
281 * can be publicly accessed.
282 * Use the according functions for cipher management instead.
283 *
284 * The bit mask handling in the selection and sorting scheme in
285 * ssl_create_cipher_list() has only limited capabilities, reflecting
286 * that the different entities within are mutually exclusive:
287 * ONLY ONE BIT PER MASK CAN BE SET AT A TIME.
288 */
289
290/* Bits for algorithm_mkey (key exchange algorithm) */
291/* RSA key exchange */
292# define SSL_kRSA                0x00000001L
293/* DH cert, RSA CA cert */
294/* no such ciphersuites supported! */
295# define SSL_kDHr                0x00000002L
296/* DH cert, DSA CA cert */
297/* no such ciphersuite supported! */
298# define SSL_kDHd                0x00000004L
299/* tmp DH key no DH cert */
300# define SSL_kEDH                0x00000008L
301/* Kerberos5 key exchange */
302# define SSL_kKRB5               0x00000010L
303/* ECDH cert, RSA CA cert */
304# define SSL_kECDHr              0x00000020L
305/* ECDH cert, ECDSA CA cert */
306# define SSL_kECDHe              0x00000040L
307/* ephemeral ECDH */
308# define SSL_kEECDH              0x00000080L
309/* PSK */
310# define SSL_kPSK                0x00000100L
311/* GOST key exchange */
312# define SSL_kGOST       0x00000200L
313/* SRP */
314# define SSL_kSRP        0x00000400L
315
316/* Bits for algorithm_auth (server authentication) */
317/* RSA auth */
318# define SSL_aRSA                0x00000001L
319/* DSS auth */
320# define SSL_aDSS                0x00000002L
321/* no auth (i.e. use ADH or AECDH) */
322# define SSL_aNULL               0x00000004L
323/* Fixed DH auth (kDHd or kDHr) */
324/* no such ciphersuites supported! */
325# define SSL_aDH                 0x00000008L
326/* Fixed ECDH auth (kECDHe or kECDHr) */
327# define SSL_aECDH               0x00000010L
328/* KRB5 auth */
329# define SSL_aKRB5               0x00000020L
330/* ECDSA auth*/
331# define SSL_aECDSA              0x00000040L
332/* PSK auth */
333# define SSL_aPSK                0x00000080L
334/* GOST R 34.10-94 signature auth */
335# define SSL_aGOST94                             0x00000100L
336/* GOST R 34.10-2001 signature auth */
337# define SSL_aGOST01                     0x00000200L
338/* SRP auth */
339# define SSL_aSRP                0x00000400L
340
341/* Bits for algorithm_enc (symmetric encryption) */
342# define SSL_DES                 0x00000001L
343# define SSL_3DES                0x00000002L
344# define SSL_RC4                 0x00000004L
345# define SSL_RC2                 0x00000008L
346# define SSL_IDEA                0x00000010L
347# define SSL_eNULL               0x00000020L
348# define SSL_AES128              0x00000040L
349# define SSL_AES256              0x00000080L
350# define SSL_CAMELLIA128         0x00000100L
351# define SSL_CAMELLIA256         0x00000200L
352# define SSL_eGOST2814789CNT     0x00000400L
353# define SSL_SEED                0x00000800L
354# define SSL_AES128GCM           0x00001000L
355# define SSL_AES256GCM           0x00002000L
356
357# define SSL_AES                 (SSL_AES128|SSL_AES256|SSL_AES128GCM|SSL_AES256GCM)
358# define SSL_CAMELLIA            (SSL_CAMELLIA128|SSL_CAMELLIA256)
359
360/* Bits for algorithm_mac (symmetric authentication) */
361
362# define SSL_MD5                 0x00000001L
363# define SSL_SHA1                0x00000002L
364# define SSL_GOST94      0x00000004L
365# define SSL_GOST89MAC   0x00000008L
366# define SSL_SHA256              0x00000010L
367# define SSL_SHA384              0x00000020L
368/* Not a real MAC, just an indication it is part of cipher */
369# define SSL_AEAD                0x00000040L
370
371/* Bits for algorithm_ssl (protocol version) */
372# define SSL_SSLV2               0x00000001UL
373# define SSL_SSLV3               0x00000002UL
374# define SSL_TLSV1               SSL_SSLV3/* for now */
375# define SSL_TLSV1_2             0x00000004UL
376
377/* Bits for algorithm2 (handshake digests and other extra flags) */
378
379# define SSL_HANDSHAKE_MAC_MD5 0x10
380# define SSL_HANDSHAKE_MAC_SHA 0x20
381# define SSL_HANDSHAKE_MAC_GOST94 0x40
382# define SSL_HANDSHAKE_MAC_SHA256 0x80
383# define SSL_HANDSHAKE_MAC_SHA384 0x100
384# define SSL_HANDSHAKE_MAC_DEFAULT (SSL_HANDSHAKE_MAC_MD5 | SSL_HANDSHAKE_MAC_SHA)
385
386/*
387 * When adding new digest in the ssl_ciph.c and increment SSM_MD_NUM_IDX make
388 * sure to update this constant too
389 */
390# define SSL_MAX_DIGEST 6
391
392# define TLS1_PRF_DGST_MASK      (0xff << TLS1_PRF_DGST_SHIFT)
393
394# define TLS1_PRF_DGST_SHIFT 10
395# define TLS1_PRF_MD5 (SSL_HANDSHAKE_MAC_MD5 << TLS1_PRF_DGST_SHIFT)
396# define TLS1_PRF_SHA1 (SSL_HANDSHAKE_MAC_SHA << TLS1_PRF_DGST_SHIFT)
397# define TLS1_PRF_SHA256 (SSL_HANDSHAKE_MAC_SHA256 << TLS1_PRF_DGST_SHIFT)
398# define TLS1_PRF_SHA384 (SSL_HANDSHAKE_MAC_SHA384 << TLS1_PRF_DGST_SHIFT)
399# define TLS1_PRF_GOST94 (SSL_HANDSHAKE_MAC_GOST94 << TLS1_PRF_DGST_SHIFT)
400# define TLS1_PRF (TLS1_PRF_MD5 | TLS1_PRF_SHA1)
401
402/*
403 * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also
404 * goes into algorithm2)
405 */
406# define TLS1_STREAM_MAC 0x04
407
408/*
409 * Export and cipher strength information. For each cipher we have to decide
410 * whether it is exportable or not. This information is likely to change
411 * over time, since the export control rules are no static technical issue.
412 *
413 * Independent of the export flag the cipher strength is sorted into classes.
414 * SSL_EXP40 was denoting the 40bit US export limit of past times, which now
415 * is at 56bit (SSL_EXP56). If the exportable cipher class is going to change
416 * again (eg. to 64bit) the use of "SSL_EXP*" becomes blurred even more,
417 * since SSL_EXP64 could be similar to SSL_LOW.
418 * For this reason SSL_MICRO and SSL_MINI macros are included to widen the
419 * namespace of SSL_LOW-SSL_HIGH to lower values. As development of speed
420 * and ciphers goes, another extension to SSL_SUPER and/or SSL_ULTRA would
421 * be possible.
422 */
423# define SSL_EXP_MASK            0x00000003L
424# define SSL_STRONG_MASK         0x000001fcL
425
426# define SSL_NOT_EXP             0x00000001L
427# define SSL_EXPORT              0x00000002L
428
429# define SSL_STRONG_NONE         0x00000004L
430# define SSL_EXP40               0x00000008L
431# define SSL_MICRO               (SSL_EXP40)
432# define SSL_EXP56               0x00000010L
433# define SSL_MINI                (SSL_EXP56)
434# define SSL_LOW                 0x00000020L
435# define SSL_MEDIUM              0x00000040L
436# define SSL_HIGH                0x00000080L
437# define SSL_FIPS                0x00000100L
438
439/* we have used 000001ff - 23 bits left to go */
440
441/*-
442 * Macros to check the export status and cipher strength for export ciphers.
443 * Even though the macros for EXPORT and EXPORT40/56 have similar names,
444 * their meaning is different:
445 * *_EXPORT macros check the 'exportable' status.
446 * *_EXPORT40/56 macros are used to check whether a certain cipher strength
447 *          is given.
448 * Since the SSL_IS_EXPORT* and SSL_EXPORT* macros depend on the correct
449 * algorithm structure element to be passed (algorithms, algo_strength) and no
450 * typechecking can be done as they are all of type unsigned long, their
451 * direct usage is discouraged.
452 * Use the SSL_C_* macros instead.
453 */
454# define SSL_IS_EXPORT(a)        ((a)&SSL_EXPORT)
455# define SSL_IS_EXPORT56(a)      ((a)&SSL_EXP56)
456# define SSL_IS_EXPORT40(a)      ((a)&SSL_EXP40)
457# define SSL_C_IS_EXPORT(c)      SSL_IS_EXPORT((c)->algo_strength)
458# define SSL_C_IS_EXPORT56(c)    SSL_IS_EXPORT56((c)->algo_strength)
459# define SSL_C_IS_EXPORT40(c)    SSL_IS_EXPORT40((c)->algo_strength)
460
461# define SSL_EXPORT_KEYLENGTH(a,s)       (SSL_IS_EXPORT40(s) ? 5 : \
462                                 (a) == SSL_DES ? 8 : 7)
463# define SSL_EXPORT_PKEYLENGTH(a) (SSL_IS_EXPORT40(a) ? 512 : 1024)
464# define SSL_C_EXPORT_KEYLENGTH(c)       SSL_EXPORT_KEYLENGTH((c)->algorithm_enc, \
465                                (c)->algo_strength)
466# define SSL_C_EXPORT_PKEYLENGTH(c)      SSL_EXPORT_PKEYLENGTH((c)->algo_strength)
467
468/* Mostly for SSLv3 */
469# define SSL_PKEY_RSA_ENC        0
470# define SSL_PKEY_RSA_SIGN       1
471# define SSL_PKEY_DSA_SIGN       2
472# define SSL_PKEY_DH_RSA         3
473# define SSL_PKEY_DH_DSA         4
474# define SSL_PKEY_ECC            5
475# define SSL_PKEY_GOST94         6
476# define SSL_PKEY_GOST01         7
477# define SSL_PKEY_NUM            8
478
479/*-
480 * SSL_kRSA <- RSA_ENC | (RSA_TMP & RSA_SIGN) |
481 *          <- (EXPORT & (RSA_ENC | RSA_TMP) & RSA_SIGN)
482 * SSL_kDH  <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
483 * SSL_kEDH <- RSA_ENC | RSA_SIGN | DSA_SIGN
484 * SSL_aRSA <- RSA_ENC | RSA_SIGN
485 * SSL_aDSS <- DSA_SIGN
486 */
487
488/*-
489#define CERT_INVALID            0
490#define CERT_PUBLIC_KEY         1
491#define CERT_PRIVATE_KEY        2
492*/
493
494# ifndef OPENSSL_NO_EC
495/*
496 * From ECC-TLS draft, used in encoding the curve type in ECParameters
497 */
498#  define EXPLICIT_PRIME_CURVE_TYPE  1
499#  define EXPLICIT_CHAR2_CURVE_TYPE  2
500#  define NAMED_CURVE_TYPE           3
501# endif                         /* OPENSSL_NO_EC */
502
503typedef struct cert_pkey_st {
504    X509 *x509;
505    EVP_PKEY *privatekey;
506    /* Digest to use when signing */
507    const EVP_MD *digest;
508} CERT_PKEY;
509
510typedef struct cert_st {
511    /* Current active set */
512    /*
513     * ALWAYS points to an element of the pkeys array
514     * Probably it would make more sense to store
515     * an index, not a pointer.
516     */
517    CERT_PKEY *key;
518    /*
519     * The following masks are for the key and auth algorithms that are
520     * supported by the certs below
521     */
522    int valid;
523    unsigned long mask_k;
524    unsigned long mask_a;
525    unsigned long export_mask_k;
526    unsigned long export_mask_a;
527# ifndef OPENSSL_NO_RSA
528    RSA *rsa_tmp;
529    RSA *(*rsa_tmp_cb) (SSL *ssl, int is_export, int keysize);
530# endif
531# ifndef OPENSSL_NO_DH
532    DH *dh_tmp;
533    DH *(*dh_tmp_cb) (SSL *ssl, int is_export, int keysize);
534# endif
535# ifndef OPENSSL_NO_ECDH
536    EC_KEY *ecdh_tmp;
537    /* Callback for generating ephemeral ECDH keys */
538    EC_KEY *(*ecdh_tmp_cb) (SSL *ssl, int is_export, int keysize);
539# endif
540    CERT_PKEY pkeys[SSL_PKEY_NUM];
541    int references;             /* >1 only if SSL_copy_session_id is used */
542} CERT;
543
544typedef struct sess_cert_st {
545    STACK_OF(X509) *cert_chain; /* as received from peer (not for SSL2) */
546    /* The 'peer_...' members are used only by clients. */
547    int peer_cert_type;
548    CERT_PKEY *peer_key;        /* points to an element of peer_pkeys (never
549                                 * NULL!) */
550    CERT_PKEY peer_pkeys[SSL_PKEY_NUM];
551    /*
552     * Obviously we don't have the private keys of these, so maybe we
553     * shouldn't even use the CERT_PKEY type here.
554     */
555# ifndef OPENSSL_NO_RSA
556    RSA *peer_rsa_tmp;          /* not used for SSL 2 */
557# endif
558# ifndef OPENSSL_NO_DH
559    DH *peer_dh_tmp;            /* not used for SSL 2 */
560# endif
561# ifndef OPENSSL_NO_ECDH
562    EC_KEY *peer_ecdh_tmp;
563# endif
564    int references;             /* actually always 1 at the moment */
565} SESS_CERT;
566
567/*
568 * #define MAC_DEBUG
569 */
570
571/*
572 * #define ERR_DEBUG
573 */
574/*
575 * #define ABORT_DEBUG
576 */
577/*
578 * #define PKT_DEBUG 1
579 */
580/*
581 * #define DES_DEBUG
582 */
583/*
584 * #define DES_OFB_DEBUG
585 */
586/*
587 * #define SSL_DEBUG
588 */
589/*
590 * #define RSA_DEBUG
591 */
592/*
593 * #define IDEA_DEBUG
594 */
595
596# define FP_ICC  (int (*)(const void *,const void *))
597# define ssl_put_cipher_by_char(ssl,ciph,ptr) \
598                ((ssl)->method->put_cipher_by_char((ciph),(ptr)))
599# define ssl_get_cipher_by_char(ssl,ptr) \
600                ((ssl)->method->get_cipher_by_char(ptr))
601
602/*
603 * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit
604 * of a mess of functions, but hell, think of it as an opaque structure :-)
605 */
606typedef struct ssl3_enc_method {
607    int (*enc) (SSL *, int);
608    int (*mac) (SSL *, unsigned char *, int);
609    int (*setup_key_block) (SSL *);
610    int (*generate_master_secret) (SSL *, unsigned char *, unsigned char *,
611                                   int);
612    int (*change_cipher_state) (SSL *, int);
613    int (*final_finish_mac) (SSL *, const char *, int, unsigned char *);
614    int finish_mac_length;
615    int (*cert_verify_mac) (SSL *, int, unsigned char *);
616    const char *client_finished_label;
617    int client_finished_label_len;
618    const char *server_finished_label;
619    int server_finished_label_len;
620    int (*alert_value) (int);
621    int (*export_keying_material) (SSL *, unsigned char *, size_t,
622                                   const char *, size_t,
623                                   const unsigned char *, size_t,
624                                   int use_context);
625} SSL3_ENC_METHOD;
626
627# ifndef OPENSSL_NO_COMP
628/* Used for holding the relevant compression methods loaded into SSL_CTX */
629typedef struct ssl3_comp_st {
630    int comp_id;                /* The identifier byte for this compression
631                                 * type */
632    char *name;                 /* Text name used for the compression type */
633    COMP_METHOD *method;        /* The method :-) */
634} SSL3_COMP;
635# endif
636
637# ifndef OPENSSL_NO_BUF_FREELISTS
638typedef struct ssl3_buf_freelist_st {
639    size_t chunklen;
640    unsigned int len;
641    struct ssl3_buf_freelist_entry_st *head;
642} SSL3_BUF_FREELIST;
643
644typedef struct ssl3_buf_freelist_entry_st {
645    struct ssl3_buf_freelist_entry_st *next;
646} SSL3_BUF_FREELIST_ENTRY;
647# endif
648
649extern SSL3_ENC_METHOD ssl3_undef_enc_method;
650OPENSSL_EXTERN const SSL_CIPHER ssl2_ciphers[];
651OPENSSL_EXTERN SSL_CIPHER ssl3_ciphers[];
652
653SSL_METHOD *ssl_bad_method(int ver);
654
655extern SSL3_ENC_METHOD TLSv1_enc_data;
656extern SSL3_ENC_METHOD SSLv3_enc_data;
657extern SSL3_ENC_METHOD DTLSv1_enc_data;
658
659# define SSL_IS_DTLS(s) (s->method->version == DTLS1_VERSION)
660
661# define IMPLEMENT_tls_meth_func(version, func_name, s_accept, s_connect, \
662                                s_get_meth) \
663const SSL_METHOD *func_name(void)  \
664        { \
665        static const SSL_METHOD func_name##_data= { \
666                version, \
667                tls1_new, \
668                tls1_clear, \
669                tls1_free, \
670                s_accept, \
671                s_connect, \
672                ssl3_read, \
673                ssl3_peek, \
674                ssl3_write, \
675                ssl3_shutdown, \
676                ssl3_renegotiate, \
677                ssl3_renegotiate_check, \
678                ssl3_get_message, \
679                ssl3_read_bytes, \
680                ssl3_write_bytes, \
681                ssl3_dispatch_alert, \
682                ssl3_ctrl, \
683                ssl3_ctx_ctrl, \
684                ssl3_get_cipher_by_char, \
685                ssl3_put_cipher_by_char, \
686                ssl3_pending, \
687                ssl3_num_ciphers, \
688                ssl3_get_cipher, \
689                s_get_meth, \
690                tls1_default_timeout, \
691                &TLSv1_enc_data, \
692                ssl_undefined_void_function, \
693                ssl3_callback_ctrl, \
694                ssl3_ctx_callback_ctrl, \
695        }; \
696        return &func_name##_data; \
697        }
698
699# define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect, s_get_meth) \
700const SSL_METHOD *func_name(void)  \
701        { \
702        static const SSL_METHOD func_name##_data= { \
703                SSL3_VERSION, \
704                ssl3_new, \
705                ssl3_clear, \
706                ssl3_free, \
707                s_accept, \
708                s_connect, \
709                ssl3_read, \
710                ssl3_peek, \
711                ssl3_write, \
712                ssl3_shutdown, \
713                ssl3_renegotiate, \
714                ssl3_renegotiate_check, \
715                ssl3_get_message, \
716                ssl3_read_bytes, \
717                ssl3_write_bytes, \
718                ssl3_dispatch_alert, \
719                ssl3_ctrl, \
720                ssl3_ctx_ctrl, \
721                ssl3_get_cipher_by_char, \
722                ssl3_put_cipher_by_char, \
723                ssl3_pending, \
724                ssl3_num_ciphers, \
725                ssl3_get_cipher, \
726                s_get_meth, \
727                ssl3_default_timeout, \
728                &SSLv3_enc_data, \
729                ssl_undefined_void_function, \
730                ssl3_callback_ctrl, \
731                ssl3_ctx_callback_ctrl, \
732        }; \
733        return &func_name##_data; \
734        }
735
736# define IMPLEMENT_ssl23_meth_func(func_name, s_accept, s_connect, s_get_meth) \
737const SSL_METHOD *func_name(void)  \
738        { \
739        static const SSL_METHOD func_name##_data= { \
740        TLS1_2_VERSION, \
741        tls1_new, \
742        tls1_clear, \
743        tls1_free, \
744        s_accept, \
745        s_connect, \
746        ssl23_read, \
747        ssl23_peek, \
748        ssl23_write, \
749        ssl_undefined_function, \
750        ssl_undefined_function, \
751        ssl_ok, \
752        ssl3_get_message, \
753        ssl3_read_bytes, \
754        ssl3_write_bytes, \
755        ssl3_dispatch_alert, \
756        ssl3_ctrl, \
757        ssl3_ctx_ctrl, \
758        ssl23_get_cipher_by_char, \
759        ssl23_put_cipher_by_char, \
760        ssl_undefined_const_function, \
761        ssl23_num_ciphers, \
762        ssl23_get_cipher, \
763        s_get_meth, \
764        ssl23_default_timeout, \
765        &ssl3_undef_enc_method, \
766        ssl_undefined_void_function, \
767        ssl3_callback_ctrl, \
768        ssl3_ctx_callback_ctrl, \
769        }; \
770        return &func_name##_data; \
771        }
772
773# define IMPLEMENT_ssl2_meth_func(func_name, s_accept, s_connect, s_get_meth) \
774const SSL_METHOD *func_name(void)  \
775        { \
776        static const SSL_METHOD func_name##_data= { \
777                SSL2_VERSION, \
778                ssl2_new,       /* local */ \
779                ssl2_clear,     /* local */ \
780                ssl2_free,      /* local */ \
781                s_accept, \
782                s_connect, \
783                ssl2_read, \
784                ssl2_peek, \
785                ssl2_write, \
786                ssl2_shutdown, \
787                ssl_ok, /* NULL - renegotiate */ \
788                ssl_ok, /* NULL - check renegotiate */ \
789                NULL, /* NULL - ssl_get_message */ \
790                NULL, /* NULL - ssl_get_record */ \
791                NULL, /* NULL - ssl_write_bytes */ \
792                NULL, /* NULL - dispatch_alert */ \
793                ssl2_ctrl,      /* local */ \
794                ssl2_ctx_ctrl,  /* local */ \
795                ssl2_get_cipher_by_char, \
796                ssl2_put_cipher_by_char, \
797                ssl2_pending, \
798                ssl2_num_ciphers, \
799                ssl2_get_cipher, \
800                s_get_meth, \
801                ssl2_default_timeout, \
802                &ssl3_undef_enc_method, \
803                ssl_undefined_void_function, \
804                ssl2_callback_ctrl,     /* local */ \
805                ssl2_ctx_callback_ctrl, /* local */ \
806        }; \
807        return &func_name##_data; \
808        }
809
810# define IMPLEMENT_dtls1_meth_func(func_name, s_accept, s_connect, s_get_meth) \
811const SSL_METHOD *func_name(void)  \
812        { \
813        static const SSL_METHOD func_name##_data= { \
814                DTLS1_VERSION, \
815                dtls1_new, \
816                dtls1_clear, \
817                dtls1_free, \
818                s_accept, \
819                s_connect, \
820                ssl3_read, \
821                ssl3_peek, \
822                ssl3_write, \
823                dtls1_shutdown, \
824                ssl3_renegotiate, \
825                ssl3_renegotiate_check, \
826                dtls1_get_message, \
827                dtls1_read_bytes, \
828                dtls1_write_app_data_bytes, \
829                dtls1_dispatch_alert, \
830                dtls1_ctrl, \
831                ssl3_ctx_ctrl, \
832                ssl3_get_cipher_by_char, \
833                ssl3_put_cipher_by_char, \
834                ssl3_pending, \
835                ssl3_num_ciphers, \
836                dtls1_get_cipher, \
837                s_get_meth, \
838                dtls1_default_timeout, \
839                &DTLSv1_enc_data, \
840                ssl_undefined_void_function, \
841                ssl3_callback_ctrl, \
842                ssl3_ctx_callback_ctrl, \
843        }; \
844        return &func_name##_data; \
845        }
846
847struct openssl_ssl_test_functions {
848    int (*p_ssl_init_wbio_buffer) (SSL *s, int push);
849    int (*p_ssl3_setup_buffers) (SSL *s);
850    int (*p_tls1_process_heartbeat) (SSL *s);
851    int (*p_dtls1_process_heartbeat) (SSL *s);
852};
853
854# ifndef OPENSSL_UNIT_TEST
855
856void ssl_clear_cipher_ctx(SSL *s);
857int ssl_clear_bad_session(SSL *s);
858CERT *ssl_cert_new(void);
859CERT *ssl_cert_dup(CERT *cert);
860int ssl_cert_inst(CERT **o);
861void ssl_cert_free(CERT *c);
862SESS_CERT *ssl_sess_cert_new(void);
863void ssl_sess_cert_free(SESS_CERT *sc);
864int ssl_set_peer_cert_type(SESS_CERT *c, int type);
865int ssl_get_new_session(SSL *s, int session);
866int ssl_get_prev_session(SSL *s, unsigned char *session, int len,
867                         const unsigned char *limit);
868SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket);
869int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b);
870DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
871int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
872                          const SSL_CIPHER *const *bp);
873STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s, unsigned char *p,
874                                               int num,
875                                               STACK_OF(SSL_CIPHER) **skp);
876int ssl_cipher_list_to_bytes(SSL *s, STACK_OF(SSL_CIPHER) *sk,
877                             unsigned char *p,
878                             int (*put_cb) (const SSL_CIPHER *,
879                                            unsigned char *));
880STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth,
881                                             STACK_OF(SSL_CIPHER) **pref,
882                                             STACK_OF(SSL_CIPHER) **sorted,
883                                             const char *rule_str);
884void ssl_update_cache(SSL *s, int mode);
885int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
886                       const EVP_MD **md, int *mac_pkey_type,
887                       int *mac_secret_size, SSL_COMP **comp);
888int ssl_get_handshake_digest(int i, long *mask, const EVP_MD **md);
889int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk);
890int ssl_undefined_function(SSL *s);
891int ssl_undefined_void_function(void);
892int ssl_undefined_const_function(const SSL *s);
893CERT_PKEY *ssl_get_server_send_pkey(const SSL *s);
894X509 *ssl_get_server_send_cert(const SSL *);
895EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *c, const EVP_MD **pmd);
896int ssl_cert_type(X509 *x, EVP_PKEY *pkey);
897void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher);
898STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
899int ssl_verify_alarm_type(long type);
900void ssl_load_ciphers(void);
901int ssl_fill_hello_random(SSL *s, int server, unsigned char *field, int len);
902
903int ssl2_enc_init(SSL *s, int client);
904int ssl2_generate_key_material(SSL *s);
905int ssl2_enc(SSL *s, int send_data);
906void ssl2_mac(SSL *s, unsigned char *mac, int send_data);
907const SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p);
908int ssl2_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
909int ssl2_part_read(SSL *s, unsigned long f, int i);
910int ssl2_do_write(SSL *s);
911int ssl2_set_certificate(SSL *s, int type, int len,
912                         const unsigned char *data);
913void ssl2_return_error(SSL *s, int reason);
914void ssl2_write_error(SSL *s);
915int ssl2_num_ciphers(void);
916const SSL_CIPHER *ssl2_get_cipher(unsigned int u);
917int ssl2_new(SSL *s);
918void ssl2_free(SSL *s);
919int ssl2_accept(SSL *s);
920int ssl2_connect(SSL *s);
921int ssl2_read(SSL *s, void *buf, int len);
922int ssl2_peek(SSL *s, void *buf, int len);
923int ssl2_write(SSL *s, const void *buf, int len);
924int ssl2_shutdown(SSL *s);
925void ssl2_clear(SSL *s);
926long ssl2_ctrl(SSL *s, int cmd, long larg, void *parg);
927long ssl2_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg);
928long ssl2_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
929long ssl2_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void));
930int ssl2_pending(const SSL *s);
931long ssl2_default_timeout(void);
932
933const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
934int ssl3_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
935void ssl3_init_finished_mac(SSL *s);
936int ssl3_send_server_certificate(SSL *s);
937int ssl3_send_newsession_ticket(SSL *s);
938int ssl3_send_cert_status(SSL *s);
939int ssl3_get_finished(SSL *s, int state_a, int state_b);
940int ssl3_setup_key_block(SSL *s);
941int ssl3_send_change_cipher_spec(SSL *s, int state_a, int state_b);
942int ssl3_change_cipher_state(SSL *s, int which);
943void ssl3_cleanup_key_block(SSL *s);
944int ssl3_do_write(SSL *s, int type);
945int ssl3_send_alert(SSL *s, int level, int desc);
946int ssl3_generate_master_secret(SSL *s, unsigned char *out,
947                                unsigned char *p, int len);
948int ssl3_get_req_cert_type(SSL *s, unsigned char *p);
949long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
950int ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen);
951int ssl3_num_ciphers(void);
952const SSL_CIPHER *ssl3_get_cipher(unsigned int u);
953int ssl3_renegotiate(SSL *ssl);
954int ssl3_renegotiate_check(SSL *ssl);
955int ssl3_dispatch_alert(SSL *s);
956int ssl3_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
957int ssl3_write_bytes(SSL *s, int type, const void *buf, int len);
958int ssl3_final_finish_mac(SSL *s, const char *sender, int slen,
959                          unsigned char *p);
960int ssl3_cert_verify_mac(SSL *s, int md_nid, unsigned char *p);
961void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len);
962int ssl3_enc(SSL *s, int send_data);
963int n_ssl3_mac(SSL *ssl, unsigned char *md, int send_data);
964void ssl3_free_digest_list(SSL *s);
965unsigned long ssl3_output_cert_chain(SSL *s, X509 *x);
966SSL_CIPHER *ssl3_choose_cipher(SSL *ssl, STACK_OF(SSL_CIPHER) *clnt,
967                               STACK_OF(SSL_CIPHER) *srvr);
968int ssl3_setup_buffers(SSL *s);
969int ssl3_setup_read_buffer(SSL *s);
970int ssl3_setup_write_buffer(SSL *s);
971int ssl3_release_read_buffer(SSL *s);
972int ssl3_release_write_buffer(SSL *s);
973int ssl3_digest_cached_records(SSL *s);
974int ssl3_new(SSL *s);
975void ssl3_free(SSL *s);
976int ssl3_accept(SSL *s);
977int ssl3_connect(SSL *s);
978int ssl3_read(SSL *s, void *buf, int len);
979int ssl3_peek(SSL *s, void *buf, int len);
980int ssl3_write(SSL *s, const void *buf, int len);
981int ssl3_shutdown(SSL *s);
982void ssl3_clear(SSL *s);
983long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg);
984long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg);
985long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
986long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void));
987int ssl3_pending(const SSL *s);
988
989void ssl3_record_sequence_update(unsigned char *seq);
990int ssl3_do_change_cipher_spec(SSL *ssl);
991long ssl3_default_timeout(void);
992
993int ssl23_num_ciphers(void);
994const SSL_CIPHER *ssl23_get_cipher(unsigned int u);
995int ssl23_read(SSL *s, void *buf, int len);
996int ssl23_peek(SSL *s, void *buf, int len);
997int ssl23_write(SSL *s, const void *buf, int len);
998int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
999const SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p);
1000long ssl23_default_timeout(void);
1001
1002long tls1_default_timeout(void);
1003int dtls1_do_write(SSL *s, int type);
1004int ssl3_read_n(SSL *s, int n, int max, int extend);
1005int dtls1_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
1006int ssl3_do_compress(SSL *ssl);
1007int ssl3_do_uncompress(SSL *ssl);
1008int ssl3_write_pending(SSL *s, int type, const unsigned char *buf,
1009                       unsigned int len);
1010unsigned char *dtls1_set_message_header(SSL *s,
1011                                        unsigned char *p, unsigned char mt,
1012                                        unsigned long len,
1013                                        unsigned long frag_off,
1014                                        unsigned long frag_len);
1015
1016int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len);
1017int dtls1_write_bytes(SSL *s, int type, const void *buf, int len);
1018
1019int dtls1_send_change_cipher_spec(SSL *s, int a, int b);
1020int dtls1_send_finished(SSL *s, int a, int b, const char *sender, int slen);
1021unsigned long dtls1_output_cert_chain(SSL *s, X509 *x);
1022int dtls1_read_failed(SSL *s, int code);
1023int dtls1_buffer_message(SSL *s, int ccs);
1024int dtls1_retransmit_message(SSL *s, unsigned short seq,
1025                             unsigned long frag_off, int *found);
1026int dtls1_get_queue_priority(unsigned short seq, int is_ccs);
1027int dtls1_retransmit_buffered_messages(SSL *s);
1028void dtls1_clear_record_buffer(SSL *s);
1029void dtls1_get_message_header(unsigned char *data,
1030                              struct hm_header_st *msg_hdr);
1031void dtls1_get_ccs_header(unsigned char *data, struct ccs_header_st *ccs_hdr);
1032void dtls1_reset_seq_numbers(SSL *s, int rw);
1033long dtls1_default_timeout(void);
1034struct timeval *dtls1_get_timeout(SSL *s, struct timeval *timeleft);
1035int dtls1_check_timeout_num(SSL *s);
1036int dtls1_handle_timeout(SSL *s);
1037const SSL_CIPHER *dtls1_get_cipher(unsigned int u);
1038void dtls1_start_timer(SSL *s);
1039void dtls1_stop_timer(SSL *s);
1040int dtls1_is_timer_expired(SSL *s);
1041void dtls1_double_timeout(SSL *s);
1042int dtls1_send_newsession_ticket(SSL *s);
1043unsigned int dtls1_min_mtu(SSL *s);
1044unsigned int dtls1_link_min_mtu(void);
1045void dtls1_hm_fragment_free(hm_fragment *frag);
1046
1047/* some client-only functions */
1048int ssl3_client_hello(SSL *s);
1049int ssl3_get_server_hello(SSL *s);
1050int ssl3_get_certificate_request(SSL *s);
1051int ssl3_get_new_session_ticket(SSL *s);
1052int ssl3_get_cert_status(SSL *s);
1053int ssl3_get_server_done(SSL *s);
1054int ssl3_send_client_verify(SSL *s);
1055int ssl3_send_client_certificate(SSL *s);
1056int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey);
1057int ssl3_send_client_key_exchange(SSL *s);
1058int ssl3_get_key_exchange(SSL *s);
1059int ssl3_get_server_certificate(SSL *s);
1060int ssl3_check_cert_and_algorithm(SSL *s);
1061#  ifndef OPENSSL_NO_TLSEXT
1062#   ifndef OPENSSL_NO_NEXTPROTONEG
1063int ssl3_send_next_proto(SSL *s);
1064#   endif
1065#  endif
1066
1067int dtls1_client_hello(SSL *s);
1068int dtls1_send_client_certificate(SSL *s);
1069int dtls1_send_client_key_exchange(SSL *s);
1070int dtls1_send_client_verify(SSL *s);
1071
1072/* some server-only functions */
1073int ssl3_get_client_hello(SSL *s);
1074int ssl3_send_server_hello(SSL *s);
1075int ssl3_send_hello_request(SSL *s);
1076int ssl3_send_server_key_exchange(SSL *s);
1077int ssl3_send_certificate_request(SSL *s);
1078int ssl3_send_server_done(SSL *s);
1079int ssl3_check_client_hello(SSL *s);
1080int ssl3_get_client_certificate(SSL *s);
1081int ssl3_get_client_key_exchange(SSL *s);
1082int ssl3_get_cert_verify(SSL *s);
1083#  ifndef OPENSSL_NO_NEXTPROTONEG
1084int ssl3_get_next_proto(SSL *s);
1085#  endif
1086
1087int dtls1_send_hello_request(SSL *s);
1088int dtls1_send_server_hello(SSL *s);
1089int dtls1_send_server_certificate(SSL *s);
1090int dtls1_send_server_key_exchange(SSL *s);
1091int dtls1_send_certificate_request(SSL *s);
1092int dtls1_send_server_done(SSL *s);
1093
1094int ssl23_accept(SSL *s);
1095int ssl23_connect(SSL *s);
1096int ssl23_read_bytes(SSL *s, int n);
1097int ssl23_write_bytes(SSL *s);
1098
1099int tls1_new(SSL *s);
1100void tls1_free(SSL *s);
1101void tls1_clear(SSL *s);
1102long tls1_ctrl(SSL *s, int cmd, long larg, void *parg);
1103long tls1_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
1104
1105int dtls1_new(SSL *s);
1106int dtls1_accept(SSL *s);
1107int dtls1_connect(SSL *s);
1108void dtls1_free(SSL *s);
1109void dtls1_clear(SSL *s);
1110long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg);
1111int dtls1_shutdown(SSL *s);
1112
1113long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
1114int dtls1_get_record(SSL *s);
1115int do_dtls1_write(SSL *s, int type, const unsigned char *buf,
1116                   unsigned int len, int create_empty_fragement);
1117int dtls1_dispatch_alert(SSL *s);
1118int dtls1_enc(SSL *s, int snd);
1119
1120int ssl_init_wbio_buffer(SSL *s, int push);
1121void ssl_free_wbio_buffer(SSL *s);
1122
1123int tls1_change_cipher_state(SSL *s, int which);
1124int tls1_setup_key_block(SSL *s);
1125int tls1_enc(SSL *s, int snd);
1126int tls1_final_finish_mac(SSL *s,
1127                          const char *str, int slen, unsigned char *p);
1128int tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *p);
1129int tls1_mac(SSL *ssl, unsigned char *md, int snd);
1130int tls1_generate_master_secret(SSL *s, unsigned char *out,
1131                                unsigned char *p, int len);
1132int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1133                                const char *label, size_t llen,
1134                                const unsigned char *p, size_t plen,
1135                                int use_context);
1136int tls1_alert_code(int code);
1137int ssl3_alert_code(int code);
1138int ssl_ok(SSL *s);
1139
1140#  ifndef OPENSSL_NO_ECDH
1141int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s);
1142#  endif
1143
1144SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
1145
1146#  ifndef OPENSSL_NO_EC
1147int tls1_ec_curve_id2nid(int curve_id);
1148int tls1_ec_nid2curve_id(int nid);
1149#  endif                        /* OPENSSL_NO_EC */
1150
1151#  ifndef OPENSSL_NO_TLSEXT
1152unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *buf,
1153                                          unsigned char *limit);
1154unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *buf,
1155                                          unsigned char *limit);
1156int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **data,
1157                                 unsigned char *d, int n, int *al);
1158int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **data,
1159                                 unsigned char *d, int n, int *al);
1160int ssl_prepare_clienthello_tlsext(SSL *s);
1161int ssl_prepare_serverhello_tlsext(SSL *s);
1162int ssl_check_clienthello_tlsext_early(SSL *s);
1163int ssl_check_clienthello_tlsext_late(SSL *s);
1164int ssl_check_serverhello_tlsext(SSL *s);
1165
1166#   ifndef OPENSSL_NO_HEARTBEATS
1167int tls1_heartbeat(SSL *s);
1168int dtls1_heartbeat(SSL *s);
1169int tls1_process_heartbeat(SSL *s);
1170int dtls1_process_heartbeat(SSL *s);
1171#   endif
1172
1173#   ifdef OPENSSL_NO_SHA256
1174#    define tlsext_tick_md  EVP_sha1
1175#   else
1176#    define tlsext_tick_md  EVP_sha256
1177#   endif
1178int tls1_process_ticket(SSL *s, unsigned char *session_id, int len,
1179                        const unsigned char *limit, SSL_SESSION **ret);
1180
1181int tls12_get_sigandhash(unsigned char *p, const EVP_PKEY *pk,
1182                         const EVP_MD *md);
1183int tls12_get_sigid(const EVP_PKEY *pk);
1184const EVP_MD *tls12_get_hash(unsigned char hash_alg);
1185
1186#  endif
1187EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md);
1188void ssl_clear_hash_ctx(EVP_MD_CTX **hash);
1189int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
1190                                        int maxlen);
1191int ssl_parse_serverhello_renegotiate_ext(SSL *s, unsigned char *d, int len,
1192                                          int *al);
1193int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
1194                                        int maxlen);
1195int ssl_parse_clienthello_renegotiate_ext(SSL *s, unsigned char *d, int len,
1196                                          int *al);
1197long ssl_get_algorithm2(SSL *s);
1198int tls1_process_sigalgs(SSL *s, const unsigned char *data, int dsize);
1199int tls12_get_req_sig_algs(SSL *s, unsigned char *p);
1200
1201int ssl_add_clienthello_use_srtp_ext(SSL *s, unsigned char *p, int *len,
1202                                     int maxlen);
1203int ssl_parse_clienthello_use_srtp_ext(SSL *s, unsigned char *d, int len,
1204                                       int *al);
1205int ssl_add_serverhello_use_srtp_ext(SSL *s, unsigned char *p, int *len,
1206                                     int maxlen);
1207int ssl_parse_serverhello_use_srtp_ext(SSL *s, unsigned char *d, int len,
1208                                       int *al);
1209
1210/* s3_cbc.c */
1211void ssl3_cbc_copy_mac(unsigned char *out,
1212                       const SSL3_RECORD *rec,
1213                       unsigned md_size, unsigned orig_len);
1214int ssl3_cbc_remove_padding(const SSL *s,
1215                            SSL3_RECORD *rec,
1216                            unsigned block_size, unsigned mac_size);
1217int tls1_cbc_remove_padding(const SSL *s,
1218                            SSL3_RECORD *rec,
1219                            unsigned block_size, unsigned mac_size);
1220char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx);
1221void ssl3_cbc_digest_record(const EVP_MD_CTX *ctx,
1222                            unsigned char *md_out,
1223                            size_t *md_out_size,
1224                            const unsigned char header[13],
1225                            const unsigned char *data,
1226                            size_t data_plus_mac_size,
1227                            size_t data_plus_mac_plus_padding_size,
1228                            const unsigned char *mac_secret,
1229                            unsigned mac_secret_length, char is_sslv3);
1230
1231void tls_fips_digest_extra(const EVP_CIPHER_CTX *cipher_ctx,
1232                           EVP_MD_CTX *mac_ctx, const unsigned char *data,
1233                           size_t data_len, size_t orig_len);
1234
1235int srp_verify_server_param(SSL *s, int *al);
1236
1237# else
1238
1239#  define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer
1240#  define ssl3_setup_buffers SSL_test_functions()->p_ssl3_setup_buffers
1241#  define tls1_process_heartbeat SSL_test_functions()->p_tls1_process_heartbeat
1242#  define dtls1_process_heartbeat SSL_test_functions()->p_dtls1_process_heartbeat
1243
1244# endif
1245#endif
1246