2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
58 /* ====================================================================
59 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
87 * 6. Redistributions of any form whatsoever must retain the following
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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 * ====================================================================
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).
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.
116 /* ====================================================================
117 * Copyright 2005 Nokia. All rights reserved.
119 * The portions of the attached software ("Contribution") is developed by
120 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
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.
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.
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.
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
143 #ifndef HEADER_SSL_LOCL_H
144 # define HEADER_SSL_LOCL_H
152 # include <openssl/buffer.h>
153 # ifndef OPENSSL_NO_COMP
154 # include <openssl/comp.h>
156 # include <openssl/bio.h>
157 # include <openssl/stack.h>
158 # ifndef OPENSSL_NO_RSA
159 # include <openssl/rsa.h>
161 # ifndef OPENSSL_NO_DSA
162 # include <openssl/dsa.h>
164 # include <openssl/err.h>
165 # include <openssl/ssl.h>
166 # include <openssl/symhacks.h>
168 # ifdef OPENSSL_BUILD_SHLIBSSL
169 # undef OPENSSL_EXTERN
170 # define OPENSSL_EXTERN OPENSSL_EXPORT
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))
180 /* NOTE - c is not incremented as per c2l */
181 # define c2ln(c,l1,l2,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)))); \
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))
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)++))))
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))
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))
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))
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)++))))
234 /* NOTE - c is not incremented as per l2c */
235 # define l2cn(l1,l2,c,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); \
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)
254 # define n2l3(c,l) ((l =(((unsigned long)(c[0]))<<16)| \
255 (((unsigned long)(c[1]))<< 8)| \
256 (((unsigned long)(c[2])) )),c+=3)
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)
264 # define SSL_DECRYPT 0
265 # define SSL_ENCRYPT 1
267 # define TWO_BYTE_BIT 0x80
268 # define SEC_ESC_BIT 0x40
269 # define TWO_BYTE_MASK 0x7fff
270 # define THREE_BYTE_MASK 0x3fff
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 */
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.
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.
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
308 # define SSL_kEECDH 0x00000080L
310 # define SSL_kPSK 0x00000100L
311 /* GOST key exchange */
312 # define SSL_kGOST 0x00000200L
314 /* Bits for algorithm_auth (server authentication) */
316 # define SSL_aRSA 0x00000001L
318 # define SSL_aDSS 0x00000002L
319 /* no auth (i.e. use ADH or AECDH) */
320 # define SSL_aNULL 0x00000004L
321 /* Fixed DH auth (kDHd or kDHr) */
322 /* no such ciphersuites supported! */
323 # define SSL_aDH 0x00000008L
324 /* Fixed ECDH auth (kECDHe or kECDHr) */
325 # define SSL_aECDH 0x00000010L
327 # define SSL_aKRB5 0x00000020L
329 # define SSL_aECDSA 0x00000040L
331 # define SSL_aPSK 0x00000080L
332 /* GOST R 34.10-94 signature auth */
333 # define SSL_aGOST94 0x00000100L
334 /* GOST R 34.10-2001 signature auth */
335 # define SSL_aGOST01 0x00000200L
337 /* Bits for algorithm_enc (symmetric encryption) */
338 # define SSL_DES 0x00000001L
339 # define SSL_3DES 0x00000002L
340 # define SSL_RC4 0x00000004L
341 # define SSL_RC2 0x00000008L
342 # define SSL_IDEA 0x00000010L
343 # define SSL_eNULL 0x00000020L
344 # define SSL_AES128 0x00000040L
345 # define SSL_AES256 0x00000080L
346 # define SSL_CAMELLIA128 0x00000100L
347 # define SSL_CAMELLIA256 0x00000200L
348 # define SSL_eGOST2814789CNT 0x00000400L
349 # define SSL_SEED 0x00000800L
351 # define SSL_AES (SSL_AES128|SSL_AES256)
352 # define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256)
354 /* Bits for algorithm_mac (symmetric authentication) */
355 # define SSL_MD5 0x00000001L
356 # define SSL_SHA1 0x00000002L
357 # define SSL_GOST94 0x00000004L
358 # define SSL_GOST89MAC 0x00000008L
360 /* Bits for algorithm_ssl (protocol version) */
361 # define SSL_SSLV2 0x00000001UL
362 # define SSL_SSLV3 0x00000002UL
363 # define SSL_TLSV1 SSL_SSLV3/* for now */
365 /* Bits for algorithm2 (handshake digests and other extra flags) */
367 # define SSL_HANDSHAKE_MAC_MD5 0x10
368 # define SSL_HANDSHAKE_MAC_SHA 0x20
369 # define SSL_HANDSHAKE_MAC_GOST94 0x40
370 # define SSL_HANDSHAKE_MAC_DEFAULT (SSL_HANDSHAKE_MAC_MD5 | SSL_HANDSHAKE_MAC_SHA)
373 * When adding new digest in the ssl_ciph.c and increment SSM_MD_NUM_IDX make
374 * sure to update this constant too
376 # define SSL_MAX_DIGEST 4
378 # define TLS1_PRF_DGST_SHIFT 8
379 # define TLS1_PRF_MD5 (SSL_HANDSHAKE_MAC_MD5 << TLS1_PRF_DGST_SHIFT)
380 # define TLS1_PRF_SHA1 (SSL_HANDSHAKE_MAC_SHA << TLS1_PRF_DGST_SHIFT)
381 # define TLS1_PRF_GOST94 (SSL_HANDSHAKE_MAC_GOST94 << TLS1_PRF_DGST_SHIFT)
382 # define TLS1_PRF (TLS1_PRF_MD5 | TLS1_PRF_SHA1)
385 * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also
386 * goes into algorithm2)
388 # define TLS1_STREAM_MAC 0x04
391 * Export and cipher strength information. For each cipher we have to decide
392 * whether it is exportable or not. This information is likely to change
393 * over time, since the export control rules are no static technical issue.
395 * Independent of the export flag the cipher strength is sorted into classes.
396 * SSL_EXP40 was denoting the 40bit US export limit of past times, which now
397 * is at 56bit (SSL_EXP56). If the exportable cipher class is going to change
398 * again (eg. to 64bit) the use of "SSL_EXP*" becomes blurred even more,
399 * since SSL_EXP64 could be similar to SSL_LOW.
400 * For this reason SSL_MICRO and SSL_MINI macros are included to widen the
401 * namespace of SSL_LOW-SSL_HIGH to lower values. As development of speed
402 * and ciphers goes, another extension to SSL_SUPER and/or SSL_ULTRA would
405 # define SSL_EXP_MASK 0x00000003L
406 # define SSL_STRONG_MASK 0x000001fcL
408 # define SSL_NOT_EXP 0x00000001L
409 # define SSL_EXPORT 0x00000002L
411 # define SSL_STRONG_NONE 0x00000004L
412 # define SSL_EXP40 0x00000008L
413 # define SSL_MICRO (SSL_EXP40)
414 # define SSL_EXP56 0x00000010L
415 # define SSL_MINI (SSL_EXP56)
416 # define SSL_LOW 0x00000020L
417 # define SSL_MEDIUM 0x00000040L
418 # define SSL_HIGH 0x00000080L
419 # define SSL_FIPS 0x00000100L
421 /* we have used 000001ff - 23 bits left to go */
424 * Macros to check the export status and cipher strength for export ciphers.
425 * Even though the macros for EXPORT and EXPORT40/56 have similar names,
426 * their meaning is different:
427 * *_EXPORT macros check the 'exportable' status.
428 * *_EXPORT40/56 macros are used to check whether a certain cipher strength
430 * Since the SSL_IS_EXPORT* and SSL_EXPORT* macros depend on the correct
431 * algorithm structure element to be passed (algorithms, algo_strength) and no
432 * typechecking can be done as they are all of type unsigned long, their
433 * direct usage is discouraged.
434 * Use the SSL_C_* macros instead.
436 # define SSL_IS_EXPORT(a) ((a)&SSL_EXPORT)
437 # define SSL_IS_EXPORT56(a) ((a)&SSL_EXP56)
438 # define SSL_IS_EXPORT40(a) ((a)&SSL_EXP40)
439 # define SSL_C_IS_EXPORT(c) SSL_IS_EXPORT((c)->algo_strength)
440 # define SSL_C_IS_EXPORT56(c) SSL_IS_EXPORT56((c)->algo_strength)
441 # define SSL_C_IS_EXPORT40(c) SSL_IS_EXPORT40((c)->algo_strength)
443 # define SSL_EXPORT_KEYLENGTH(a,s) (SSL_IS_EXPORT40(s) ? 5 : \
444 (a) == SSL_DES ? 8 : 7)
445 # define SSL_EXPORT_PKEYLENGTH(a) (SSL_IS_EXPORT40(a) ? 512 : 1024)
446 # define SSL_C_EXPORT_KEYLENGTH(c) SSL_EXPORT_KEYLENGTH((c)->algorithm_enc, \
448 # define SSL_C_EXPORT_PKEYLENGTH(c) SSL_EXPORT_PKEYLENGTH((c)->algo_strength)
450 /* Mostly for SSLv3 */
451 # define SSL_PKEY_RSA_ENC 0
452 # define SSL_PKEY_RSA_SIGN 1
453 # define SSL_PKEY_DSA_SIGN 2
454 # define SSL_PKEY_DH_RSA 3
455 # define SSL_PKEY_DH_DSA 4
456 # define SSL_PKEY_ECC 5
457 # define SSL_PKEY_GOST94 6
458 # define SSL_PKEY_GOST01 7
459 # define SSL_PKEY_NUM 8
462 * SSL_kRSA <- RSA_ENC | (RSA_TMP & RSA_SIGN) |
463 * <- (EXPORT & (RSA_ENC | RSA_TMP) & RSA_SIGN)
464 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
465 * SSL_kEDH <- RSA_ENC | RSA_SIGN | DSA_SIGN
466 * SSL_aRSA <- RSA_ENC | RSA_SIGN
467 * SSL_aDSS <- DSA_SIGN
471 #define CERT_INVALID 0
472 #define CERT_PUBLIC_KEY 1
473 #define CERT_PRIVATE_KEY 2
476 # ifndef OPENSSL_NO_EC
478 * From ECC-TLS draft, used in encoding the curve type in ECParameters
480 # define EXPLICIT_PRIME_CURVE_TYPE 1
481 # define EXPLICIT_CHAR2_CURVE_TYPE 2
482 # define NAMED_CURVE_TYPE 3
483 # endif /* OPENSSL_NO_EC */
485 typedef struct cert_pkey_st {
487 EVP_PKEY *privatekey;
490 typedef struct cert_st {
491 /* Current active set */
493 * ALWAYS points to an element of the pkeys array
494 * Probably it would make more sense to store
495 * an index, not a pointer.
499 * The following masks are for the key and auth algorithms that are
500 * supported by the certs below
503 unsigned long mask_k;
504 unsigned long mask_a;
505 unsigned long export_mask_k;
506 unsigned long export_mask_a;
507 # ifndef OPENSSL_NO_RSA
509 RSA *(*rsa_tmp_cb) (SSL *ssl, int is_export, int keysize);
511 # ifndef OPENSSL_NO_DH
513 DH *(*dh_tmp_cb) (SSL *ssl, int is_export, int keysize);
515 # ifndef OPENSSL_NO_ECDH
517 /* Callback for generating ephemeral ECDH keys */
518 EC_KEY *(*ecdh_tmp_cb) (SSL *ssl, int is_export, int keysize);
520 CERT_PKEY pkeys[SSL_PKEY_NUM];
521 int references; /* >1 only if SSL_copy_session_id is used */
524 typedef struct sess_cert_st {
525 STACK_OF(X509) *cert_chain; /* as received from peer (not for SSL2) */
526 /* The 'peer_...' members are used only by clients. */
528 CERT_PKEY *peer_key; /* points to an element of peer_pkeys (never
530 CERT_PKEY peer_pkeys[SSL_PKEY_NUM];
532 * Obviously we don't have the private keys of these, so maybe we
533 * shouldn't even use the CERT_PKEY type here.
535 # ifndef OPENSSL_NO_RSA
536 RSA *peer_rsa_tmp; /* not used for SSL 2 */
538 # ifndef OPENSSL_NO_DH
539 DH *peer_dh_tmp; /* not used for SSL 2 */
541 # ifndef OPENSSL_NO_ECDH
542 EC_KEY *peer_ecdh_tmp;
544 int references; /* actually always 1 at the moment */
555 * #define ABORT_DEBUG
558 * #define PKT_DEBUG 1
564 * #define DES_OFB_DEBUG
576 # define FP_ICC (int (*)(const void *,const void *))
577 # define ssl_put_cipher_by_char(ssl,ciph,ptr) \
578 ((ssl)->method->put_cipher_by_char((ciph),(ptr)))
579 # define ssl_get_cipher_by_char(ssl,ptr) \
580 ((ssl)->method->get_cipher_by_char(ptr))
583 * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit
584 * of a mess of functions, but hell, think of it as an opaque structure :-)
586 typedef struct ssl3_enc_method {
587 int (*enc) (SSL *, int);
588 int (*mac) (SSL *, unsigned char *, int);
589 int (*setup_key_block) (SSL *);
590 int (*generate_master_secret) (SSL *, unsigned char *, unsigned char *,
592 int (*change_cipher_state) (SSL *, int);
593 int (*final_finish_mac) (SSL *, const char *, int, unsigned char *);
594 int finish_mac_length;
595 int (*cert_verify_mac) (SSL *, int, unsigned char *);
596 const char *client_finished_label;
597 int client_finished_label_len;
598 const char *server_finished_label;
599 int server_finished_label_len;
600 int (*alert_value) (int);
603 # ifndef OPENSSL_NO_COMP
604 /* Used for holding the relevant compression methods loaded into SSL_CTX */
605 typedef struct ssl3_comp_st {
606 int comp_id; /* The identifier byte for this compression
608 char *name; /* Text name used for the compression type */
609 COMP_METHOD *method; /* The method :-) */
613 # ifndef OPENSSL_NO_BUF_FREELISTS
614 typedef struct ssl3_buf_freelist_st {
617 struct ssl3_buf_freelist_entry_st *head;
620 typedef struct ssl3_buf_freelist_entry_st {
621 struct ssl3_buf_freelist_entry_st *next;
622 } SSL3_BUF_FREELIST_ENTRY;
625 extern SSL3_ENC_METHOD ssl3_undef_enc_method;
626 OPENSSL_EXTERN const SSL_CIPHER ssl2_ciphers[];
627 OPENSSL_EXTERN SSL_CIPHER ssl3_ciphers[];
629 SSL_METHOD *ssl_bad_method(int ver);
631 extern SSL3_ENC_METHOD TLSv1_enc_data;
632 extern SSL3_ENC_METHOD SSLv3_enc_data;
633 extern SSL3_ENC_METHOD DTLSv1_enc_data;
635 # define SSL_IS_DTLS(s) (s->method->version == DTLS1_VERSION)
637 # define IMPLEMENT_tls1_meth_func(func_name, s_accept, s_connect, s_get_meth) \
638 const SSL_METHOD *func_name(void) \
640 static const SSL_METHOD func_name##_data= { \
652 ssl3_renegotiate_check, \
656 ssl3_dispatch_alert, \
659 ssl3_get_cipher_by_char, \
660 ssl3_put_cipher_by_char, \
665 tls1_default_timeout, \
667 ssl_undefined_void_function, \
668 ssl3_callback_ctrl, \
669 ssl3_ctx_callback_ctrl, \
671 return &func_name##_data; \
674 # define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect, s_get_meth) \
675 const SSL_METHOD *func_name(void) \
677 static const SSL_METHOD func_name##_data= { \
689 ssl3_renegotiate_check, \
693 ssl3_dispatch_alert, \
696 ssl3_get_cipher_by_char, \
697 ssl3_put_cipher_by_char, \
702 ssl3_default_timeout, \
704 ssl_undefined_void_function, \
705 ssl3_callback_ctrl, \
706 ssl3_ctx_callback_ctrl, \
708 return &func_name##_data; \
711 # define IMPLEMENT_ssl23_meth_func(func_name, s_accept, s_connect, s_get_meth) \
712 const SSL_METHOD *func_name(void) \
714 static const SSL_METHOD func_name##_data= { \
724 ssl_undefined_function, \
725 ssl_undefined_function, \
730 ssl3_dispatch_alert, \
733 ssl23_get_cipher_by_char, \
734 ssl23_put_cipher_by_char, \
735 ssl_undefined_const_function, \
739 ssl23_default_timeout, \
740 &ssl3_undef_enc_method, \
741 ssl_undefined_void_function, \
742 ssl3_callback_ctrl, \
743 ssl3_ctx_callback_ctrl, \
745 return &func_name##_data; \
748 # define IMPLEMENT_ssl2_meth_func(func_name, s_accept, s_connect, s_get_meth) \
749 const SSL_METHOD *func_name(void) \
751 static const SSL_METHOD func_name##_data= { \
753 ssl2_new, /* local */ \
754 ssl2_clear, /* local */ \
755 ssl2_free, /* local */ \
762 ssl_ok, /* NULL - renegotiate */ \
763 ssl_ok, /* NULL - check renegotiate */ \
764 NULL, /* NULL - ssl_get_message */ \
765 NULL, /* NULL - ssl_get_record */ \
766 NULL, /* NULL - ssl_write_bytes */ \
767 NULL, /* NULL - dispatch_alert */ \
768 ssl2_ctrl, /* local */ \
769 ssl2_ctx_ctrl, /* local */ \
770 ssl2_get_cipher_by_char, \
771 ssl2_put_cipher_by_char, \
776 ssl2_default_timeout, \
777 &ssl3_undef_enc_method, \
778 ssl_undefined_void_function, \
779 ssl2_callback_ctrl, /* local */ \
780 ssl2_ctx_callback_ctrl, /* local */ \
782 return &func_name##_data; \
785 # define IMPLEMENT_dtls1_meth_func(func_name, s_accept, s_connect, s_get_meth) \
786 const SSL_METHOD *func_name(void) \
788 static const SSL_METHOD func_name##_data= { \
800 ssl3_renegotiate_check, \
803 dtls1_write_app_data_bytes, \
804 dtls1_dispatch_alert, \
807 ssl3_get_cipher_by_char, \
808 ssl3_put_cipher_by_char, \
813 dtls1_default_timeout, \
815 ssl_undefined_void_function, \
816 ssl3_callback_ctrl, \
817 ssl3_ctx_callback_ctrl, \
819 return &func_name##_data; \
822 void ssl_clear_cipher_ctx(SSL *s);
823 int ssl_clear_bad_session(SSL *s);
824 CERT *ssl_cert_new(void);
825 CERT *ssl_cert_dup(CERT *cert);
826 int ssl_cert_inst(CERT **o);
827 void ssl_cert_free(CERT *c);
828 SESS_CERT *ssl_sess_cert_new(void);
829 void ssl_sess_cert_free(SESS_CERT *sc);
830 int ssl_set_peer_cert_type(SESS_CERT *c, int type);
831 int ssl_get_new_session(SSL *s, int session);
832 int ssl_get_prev_session(SSL *s, unsigned char *session, int len,
833 const unsigned char *limit);
834 SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket);
835 int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b);
836 DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
837 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
838 const SSL_CIPHER *const *bp);
839 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s, unsigned char *p,
841 STACK_OF(SSL_CIPHER) **skp);
842 int ssl_cipher_list_to_bytes(SSL *s, STACK_OF(SSL_CIPHER) *sk,
844 int (*put_cb) (const SSL_CIPHER *,
846 STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth,
847 STACK_OF(SSL_CIPHER) **pref,
848 STACK_OF(SSL_CIPHER) **sorted,
849 const char *rule_str);
850 void ssl_update_cache(SSL *s, int mode);
851 int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
852 const EVP_MD **md, int *mac_pkey_type,
853 int *mac_secret_size, SSL_COMP **comp);
854 int ssl_get_handshake_digest(int i, long *mask, const EVP_MD **md);
855 int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk);
856 int ssl_undefined_function(SSL *s);
857 int ssl_undefined_void_function(void);
858 int ssl_undefined_const_function(const SSL *s);
859 CERT_PKEY *ssl_get_server_send_pkey(const SSL *s);
860 X509 *ssl_get_server_send_cert(const SSL *);
861 EVP_PKEY *ssl_get_sign_pkey(SSL *, const SSL_CIPHER *);
862 int ssl_cert_type(X509 *x, EVP_PKEY *pkey);
863 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher);
864 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
865 int ssl_verify_alarm_type(long type);
866 void ssl_load_ciphers(void);
868 int ssl2_enc_init(SSL *s, int client);
869 int ssl2_generate_key_material(SSL *s);
870 int ssl2_enc(SSL *s, int send_data);
871 void ssl2_mac(SSL *s, unsigned char *mac, int send_data);
872 const SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p);
873 int ssl2_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
874 int ssl2_part_read(SSL *s, unsigned long f, int i);
875 int ssl2_do_write(SSL *s);
876 int ssl2_set_certificate(SSL *s, int type, int len,
877 const unsigned char *data);
878 void ssl2_return_error(SSL *s, int reason);
879 void ssl2_write_error(SSL *s);
880 int ssl2_num_ciphers(void);
881 const SSL_CIPHER *ssl2_get_cipher(unsigned int u);
882 int ssl2_new(SSL *s);
883 void ssl2_free(SSL *s);
884 int ssl2_accept(SSL *s);
885 int ssl2_connect(SSL *s);
886 int ssl2_read(SSL *s, void *buf, int len);
887 int ssl2_peek(SSL *s, void *buf, int len);
888 int ssl2_write(SSL *s, const void *buf, int len);
889 int ssl2_shutdown(SSL *s);
890 void ssl2_clear(SSL *s);
891 long ssl2_ctrl(SSL *s, int cmd, long larg, void *parg);
892 long ssl2_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg);
893 long ssl2_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
894 long ssl2_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void));
895 int ssl2_pending(const SSL *s);
896 long ssl2_default_timeout(void);
898 const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
899 int ssl3_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
900 void ssl3_init_finished_mac(SSL *s);
901 int ssl3_send_server_certificate(SSL *s);
902 int ssl3_send_newsession_ticket(SSL *s);
903 int ssl3_send_cert_status(SSL *s);
904 int ssl3_get_finished(SSL *s, int state_a, int state_b);
905 int ssl3_setup_key_block(SSL *s);
906 int ssl3_send_change_cipher_spec(SSL *s, int state_a, int state_b);
907 int ssl3_change_cipher_state(SSL *s, int which);
908 void ssl3_cleanup_key_block(SSL *s);
909 int ssl3_do_write(SSL *s, int type);
910 int ssl3_send_alert(SSL *s, int level, int desc);
911 int ssl3_generate_master_secret(SSL *s, unsigned char *out,
912 unsigned char *p, int len);
913 int ssl3_get_req_cert_type(SSL *s, unsigned char *p);
914 long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
915 int ssl3_send_finished(SSL *s, int a, int b, const char *sender, int slen);
916 int ssl3_num_ciphers(void);
917 const SSL_CIPHER *ssl3_get_cipher(unsigned int u);
918 int ssl3_renegotiate(SSL *ssl);
919 int ssl3_renegotiate_check(SSL *ssl);
920 int ssl3_dispatch_alert(SSL *s);
921 int ssl3_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
922 int ssl3_write_bytes(SSL *s, int type, const void *buf, int len);
923 int ssl3_final_finish_mac(SSL *s, const char *sender, int slen,
925 int ssl3_cert_verify_mac(SSL *s, int md_nid, unsigned char *p);
926 void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len);
927 int ssl3_enc(SSL *s, int send_data);
928 int n_ssl3_mac(SSL *ssl, unsigned char *md, int send_data);
929 void ssl3_free_digest_list(SSL *s);
930 unsigned long ssl3_output_cert_chain(SSL *s, X509 *x);
931 SSL_CIPHER *ssl3_choose_cipher(SSL *ssl, STACK_OF(SSL_CIPHER) *clnt,
932 STACK_OF(SSL_CIPHER) *srvr);
933 int ssl3_setup_buffers(SSL *s);
934 int ssl3_setup_read_buffer(SSL *s);
935 int ssl3_setup_write_buffer(SSL *s);
936 int ssl3_release_read_buffer(SSL *s);
937 int ssl3_release_write_buffer(SSL *s);
938 int ssl3_digest_cached_records(SSL *s);
939 int ssl3_new(SSL *s);
940 void ssl3_free(SSL *s);
941 int ssl3_accept(SSL *s);
942 int ssl3_connect(SSL *s);
943 int ssl3_read(SSL *s, void *buf, int len);
944 int ssl3_peek(SSL *s, void *buf, int len);
945 int ssl3_write(SSL *s, const void *buf, int len);
946 int ssl3_shutdown(SSL *s);
947 void ssl3_clear(SSL *s);
948 long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg);
949 long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg);
950 long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
951 long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void));
952 int ssl3_pending(const SSL *s);
954 void ssl3_record_sequence_update(unsigned char *seq);
955 int ssl3_do_change_cipher_spec(SSL *ssl);
956 long ssl3_default_timeout(void);
958 int ssl23_num_ciphers(void);
959 const SSL_CIPHER *ssl23_get_cipher(unsigned int u);
960 int ssl23_read(SSL *s, void *buf, int len);
961 int ssl23_peek(SSL *s, void *buf, int len);
962 int ssl23_write(SSL *s, const void *buf, int len);
963 int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
964 const SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p);
965 long ssl23_default_timeout(void);
967 long tls1_default_timeout(void);
968 int dtls1_do_write(SSL *s, int type);
969 int ssl3_read_n(SSL *s, int n, int max, int extend);
970 int dtls1_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
971 int ssl3_do_compress(SSL *ssl);
972 int ssl3_do_uncompress(SSL *ssl);
973 int ssl3_write_pending(SSL *s, int type, const unsigned char *buf,
975 unsigned char *dtls1_set_message_header(SSL *s,
976 unsigned char *p, unsigned char mt,
978 unsigned long frag_off,
979 unsigned long frag_len);
981 int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len);
982 int dtls1_write_bytes(SSL *s, int type, const void *buf, int len);
984 int dtls1_send_change_cipher_spec(SSL *s, int a, int b);
985 int dtls1_send_finished(SSL *s, int a, int b, const char *sender, int slen);
986 unsigned long dtls1_output_cert_chain(SSL *s, X509 *x);
987 int dtls1_read_failed(SSL *s, int code);
988 int dtls1_buffer_message(SSL *s, int ccs);
989 int dtls1_retransmit_message(SSL *s, unsigned short seq,
990 unsigned long frag_off, int *found);
991 int dtls1_get_queue_priority(unsigned short seq, int is_ccs);
992 int dtls1_retransmit_buffered_messages(SSL *s);
993 void dtls1_clear_record_buffer(SSL *s);
994 void dtls1_get_message_header(unsigned char *data,
995 struct hm_header_st *msg_hdr);
996 void dtls1_get_ccs_header(unsigned char *data, struct ccs_header_st *ccs_hdr);
997 void dtls1_reset_seq_numbers(SSL *s, int rw);
998 long dtls1_default_timeout(void);
999 struct timeval *dtls1_get_timeout(SSL *s, struct timeval *timeleft);
1000 int dtls1_check_timeout_num(SSL *s);
1001 int dtls1_handle_timeout(SSL *s);
1002 const SSL_CIPHER *dtls1_get_cipher(unsigned int u);
1003 void dtls1_start_timer(SSL *s);
1004 void dtls1_stop_timer(SSL *s);
1005 int dtls1_is_timer_expired(SSL *s);
1006 void dtls1_double_timeout(SSL *s);
1007 int dtls1_send_newsession_ticket(SSL *s);
1008 unsigned int dtls1_min_mtu(SSL *s);
1009 unsigned int dtls1_link_min_mtu(void);
1010 void dtls1_hm_fragment_free(hm_fragment *frag);
1012 /* some client-only functions */
1013 int ssl3_client_hello(SSL *s);
1014 int ssl3_get_server_hello(SSL *s);
1015 int ssl3_get_certificate_request(SSL *s);
1016 int ssl3_get_new_session_ticket(SSL *s);
1017 int ssl3_get_cert_status(SSL *s);
1018 int ssl3_get_server_done(SSL *s);
1019 int ssl3_send_client_verify(SSL *s);
1020 int ssl3_send_client_certificate(SSL *s);
1021 int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey);
1022 int ssl3_send_client_key_exchange(SSL *s);
1023 int ssl3_get_key_exchange(SSL *s);
1024 int ssl3_get_server_certificate(SSL *s);
1025 int ssl3_check_cert_and_algorithm(SSL *s);
1026 # ifndef OPENSSL_NO_TLSEXT
1027 int ssl3_check_finished(SSL *s);
1030 int dtls1_client_hello(SSL *s);
1031 int dtls1_send_client_certificate(SSL *s);
1032 int dtls1_send_client_key_exchange(SSL *s);
1033 int dtls1_send_client_verify(SSL *s);
1035 /* some server-only functions */
1036 int ssl3_get_client_hello(SSL *s);
1037 int ssl3_send_server_hello(SSL *s);
1038 int ssl3_send_hello_request(SSL *s);
1039 int ssl3_send_server_key_exchange(SSL *s);
1040 int ssl3_send_certificate_request(SSL *s);
1041 int ssl3_send_server_done(SSL *s);
1042 int ssl3_check_client_hello(SSL *s);
1043 int ssl3_get_client_certificate(SSL *s);
1044 int ssl3_get_client_key_exchange(SSL *s);
1045 int ssl3_get_cert_verify(SSL *s);
1047 int dtls1_send_hello_request(SSL *s);
1048 int dtls1_send_server_hello(SSL *s);
1049 int dtls1_send_server_certificate(SSL *s);
1050 int dtls1_send_server_key_exchange(SSL *s);
1051 int dtls1_send_certificate_request(SSL *s);
1052 int dtls1_send_server_done(SSL *s);
1054 int ssl23_accept(SSL *s);
1055 int ssl23_connect(SSL *s);
1056 int ssl23_read_bytes(SSL *s, int n);
1057 int ssl23_write_bytes(SSL *s);
1059 int tls1_new(SSL *s);
1060 void tls1_free(SSL *s);
1061 void tls1_clear(SSL *s);
1062 long tls1_ctrl(SSL *s, int cmd, long larg, void *parg);
1063 long tls1_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
1065 int dtls1_new(SSL *s);
1066 int dtls1_accept(SSL *s);
1067 int dtls1_connect(SSL *s);
1068 void dtls1_free(SSL *s);
1069 void dtls1_clear(SSL *s);
1070 long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg);
1072 long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
1073 int dtls1_get_record(SSL *s);
1074 int do_dtls1_write(SSL *s, int type, const unsigned char *buf,
1075 unsigned int len, int create_empty_fragement);
1076 int dtls1_dispatch_alert(SSL *s);
1077 int dtls1_enc(SSL *s, int snd);
1079 int ssl_init_wbio_buffer(SSL *s, int push);
1080 void ssl_free_wbio_buffer(SSL *s);
1082 int tls1_change_cipher_state(SSL *s, int which);
1083 int tls1_setup_key_block(SSL *s);
1084 int tls1_enc(SSL *s, int snd);
1085 int tls1_final_finish_mac(SSL *s,
1086 const char *str, int slen, unsigned char *p);
1087 int tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *p);
1088 int tls1_mac(SSL *ssl, unsigned char *md, int snd);
1089 int tls1_generate_master_secret(SSL *s, unsigned char *out,
1090 unsigned char *p, int len);
1091 int tls1_alert_code(int code);
1092 int ssl3_alert_code(int code);
1095 # ifndef OPENSSL_NO_ECDH
1096 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, const SSL_CIPHER *cs);
1099 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
1101 # ifndef OPENSSL_NO_EC
1102 int tls1_ec_curve_id2nid(int curve_id);
1103 int tls1_ec_nid2curve_id(int nid);
1104 # endif /* OPENSSL_NO_EC */
1106 # ifndef OPENSSL_NO_TLSEXT
1107 unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *p,
1108 unsigned char *limit);
1109 unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *p,
1110 unsigned char *limit);
1111 int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **data,
1112 unsigned char *d, int n, int *al);
1113 int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **data,
1114 unsigned char *d, int n, int *al);
1115 int ssl_prepare_clienthello_tlsext(SSL *s);
1116 int ssl_prepare_serverhello_tlsext(SSL *s);
1117 int ssl_check_clienthello_tlsext_early(SSL *s);
1118 int ssl_check_clienthello_tlsext_late(SSL *s);
1119 int ssl_check_serverhello_tlsext(SSL *s);
1121 # ifdef OPENSSL_NO_SHA256
1122 # define tlsext_tick_md EVP_sha1
1124 # define tlsext_tick_md EVP_sha256
1126 int tls1_process_ticket(SSL *s, unsigned char *session_id, int len,
1127 const unsigned char *limit, SSL_SESSION **ret);
1129 EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md);
1130 void ssl_clear_hash_ctx(EVP_MD_CTX **hash);
1131 int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
1133 int ssl_parse_serverhello_renegotiate_ext(SSL *s, unsigned char *d, int len,
1135 int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
1137 int ssl_parse_clienthello_renegotiate_ext(SSL *s, unsigned char *d, int len,
1140 void ssl3_cbc_copy_mac(unsigned char *out,
1141 const SSL3_RECORD *rec,
1142 unsigned md_size, unsigned orig_len);
1143 int ssl3_cbc_remove_padding(const SSL *s,
1145 unsigned block_size, unsigned mac_size);
1146 int tls1_cbc_remove_padding(const SSL *s,
1148 unsigned block_size, unsigned mac_size);
1149 char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx);
1150 void ssl3_cbc_digest_record(const EVP_MD_CTX *ctx,
1151 unsigned char *md_out,
1152 size_t *md_out_size,
1153 const unsigned char header[13],
1154 const unsigned char *data,
1155 size_t data_plus_mac_size,
1156 size_t data_plus_mac_plus_padding_size,
1157 const unsigned char *mac_secret,
1158 unsigned mac_secret_length, char is_sslv3);