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 #define SSL_kRSA 0x00000001L /* RSA key exchange */
292 #define SSL_kDHr 0x00000002L /* DH cert, RSA CA cert */
293 #define SSL_kDHd 0x00000004L /* DH cert, DSA CA cert */
294 #define SSL_kEDH 0x00000008L /* tmp DH key no DH cert */
295 #define SSL_kKRB5 0x00000010L /* Kerberos5 key exchange */
296 #define SSL_kECDHr 0x00000020L /* ECDH cert, RSA CA cert */
297 #define SSL_kECDHe 0x00000040L /* ECDH cert, ECDSA CA cert */
298 #define SSL_kEECDH 0x00000080L /* ephemeral ECDH */
299 #define SSL_kPSK 0x00000100L /* PSK */
300 #define SSL_kGOST 0x00000200L /* GOST key exchange */
301 #define SSL_kSRP 0x00000400L /* SRP */
303 /* Bits for algorithm_auth (server authentication) */
304 #define SSL_aRSA 0x00000001L /* RSA auth */
305 #define SSL_aDSS 0x00000002L /* DSS auth */
306 #define SSL_aNULL 0x00000004L /* no auth (i.e. use ADH or AECDH) */
307 #define SSL_aDH 0x00000008L /* Fixed DH auth (kDHd or kDHr) */
308 #define SSL_aECDH 0x00000010L /* Fixed ECDH auth (kECDHe or kECDHr) */
309 #define SSL_aKRB5 0x00000020L /* KRB5 auth */
310 #define SSL_aECDSA 0x00000040L /* ECDSA auth*/
311 #define SSL_aPSK 0x00000080L /* PSK auth */
312 #define SSL_aGOST94 0x00000100L /* GOST R 34.10-94 signature auth */
313 #define SSL_aGOST01 0x00000200L /* GOST R 34.10-2001 signature auth */
316 /* Bits for algorithm_enc (symmetric encryption) */
317 #define SSL_DES 0x00000001L
318 #define SSL_3DES 0x00000002L
319 #define SSL_RC4 0x00000004L
320 #define SSL_RC2 0x00000008L
321 #define SSL_IDEA 0x00000010L
322 #define SSL_eNULL 0x00000020L
323 #define SSL_AES128 0x00000040L
324 #define SSL_AES256 0x00000080L
325 #define SSL_CAMELLIA128 0x00000100L
326 #define SSL_CAMELLIA256 0x00000200L
327 #define SSL_eGOST2814789CNT 0x00000400L
328 #define SSL_SEED 0x00000800L
329 #define SSL_AES128GCM 0x00001000L
330 #define SSL_AES256GCM 0x00002000L
332 #define SSL_AES (SSL_AES128|SSL_AES256|SSL_AES128GCM|SSL_AES256GCM)
333 #define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256)
336 /* Bits for algorithm_mac (symmetric authentication) */
338 #define SSL_MD5 0x00000001L
339 #define SSL_SHA1 0x00000002L
340 #define SSL_GOST94 0x00000004L
341 #define SSL_GOST89MAC 0x00000008L
342 #define SSL_SHA256 0x00000010L
343 #define SSL_SHA384 0x00000020L
344 /* Not a real MAC, just an indication it is part of cipher */
345 #define SSL_AEAD 0x00000040L
347 /* Bits for algorithm_ssl (protocol version) */
348 #define SSL_SSLV2 0x00000001L
349 #define SSL_SSLV3 0x00000002L
350 #define SSL_TLSV1 SSL_SSLV3 /* for now */
351 #define SSL_TLSV1_2 0x00000004L
354 /* Bits for algorithm2 (handshake digests and other extra flags) */
356 #define SSL_HANDSHAKE_MAC_MD5 0x10
357 #define SSL_HANDSHAKE_MAC_SHA 0x20
358 #define SSL_HANDSHAKE_MAC_GOST94 0x40
359 #define SSL_HANDSHAKE_MAC_SHA256 0x80
360 #define SSL_HANDSHAKE_MAC_SHA384 0x100
361 #define SSL_HANDSHAKE_MAC_DEFAULT (SSL_HANDSHAKE_MAC_MD5 | SSL_HANDSHAKE_MAC_SHA)
363 /* When adding new digest in the ssl_ciph.c and increment SSM_MD_NUM_IDX
364 * make sure to update this constant too */
365 #define SSL_MAX_DIGEST 6
367 #define TLS1_PRF_DGST_SHIFT 10
368 #define TLS1_PRF_MD5 (SSL_HANDSHAKE_MAC_MD5 << TLS1_PRF_DGST_SHIFT)
369 #define TLS1_PRF_SHA1 (SSL_HANDSHAKE_MAC_SHA << TLS1_PRF_DGST_SHIFT)
370 #define TLS1_PRF_SHA256 (SSL_HANDSHAKE_MAC_SHA256 << TLS1_PRF_DGST_SHIFT)
371 #define TLS1_PRF_SHA384 (SSL_HANDSHAKE_MAC_SHA384 << TLS1_PRF_DGST_SHIFT)
372 #define TLS1_PRF_GOST94 (SSL_HANDSHAKE_MAC_GOST94 << TLS1_PRF_DGST_SHIFT)
373 #define TLS1_PRF (TLS1_PRF_MD5 | TLS1_PRF_SHA1)
375 /* Stream MAC for GOST ciphersuites from cryptopro draft
376 * (currently this also goes into algorithm2) */
377 #define TLS1_STREAM_MAC 0x04
382 * Export and cipher strength information. For each cipher we have to decide
383 * whether it is exportable or not. This information is likely to change
384 * over time, since the export control rules are no static technical issue.
386 * Independent of the export flag the cipher strength is sorted into classes.
387 * SSL_EXP40 was denoting the 40bit US export limit of past times, which now
388 * is at 56bit (SSL_EXP56). If the exportable cipher class is going to change
389 * again (eg. to 64bit) the use of "SSL_EXP*" becomes blurred even more,
390 * since SSL_EXP64 could be similar to SSL_LOW.
391 * For this reason SSL_MICRO and SSL_MINI macros are included to widen the
392 * namespace of SSL_LOW-SSL_HIGH to lower values. As development of speed
393 * and ciphers goes, another extension to SSL_SUPER and/or SSL_ULTRA would
396 #define SSL_EXP_MASK 0x00000003L
397 #define SSL_STRONG_MASK 0x000001fcL
399 #define SSL_NOT_EXP 0x00000001L
400 #define SSL_EXPORT 0x00000002L
402 #define SSL_STRONG_NONE 0x00000004L
403 #define SSL_EXP40 0x00000008L
404 #define SSL_MICRO (SSL_EXP40)
405 #define SSL_EXP56 0x00000010L
406 #define SSL_MINI (SSL_EXP56)
407 #define SSL_LOW 0x00000020L
408 #define SSL_MEDIUM 0x00000040L
409 #define SSL_HIGH 0x00000080L
410 #define SSL_FIPS 0x00000100L
412 /* we have used 000001ff - 23 bits left to go */
415 * Macros to check the export status and cipher strength for export ciphers.
416 * Even though the macros for EXPORT and EXPORT40/56 have similar names,
417 * their meaning is different:
418 * *_EXPORT macros check the 'exportable' status.
419 * *_EXPORT40/56 macros are used to check whether a certain cipher strength
421 * Since the SSL_IS_EXPORT* and SSL_EXPORT* macros depend on the correct
422 * algorithm structure element to be passed (algorithms, algo_strength) and no
423 * typechecking can be done as they are all of type unsigned long, their
424 * direct usage is discouraged.
425 * Use the SSL_C_* macros instead.
427 #define SSL_IS_EXPORT(a) ((a)&SSL_EXPORT)
428 #define SSL_IS_EXPORT56(a) ((a)&SSL_EXP56)
429 #define SSL_IS_EXPORT40(a) ((a)&SSL_EXP40)
430 #define SSL_C_IS_EXPORT(c) SSL_IS_EXPORT((c)->algo_strength)
431 #define SSL_C_IS_EXPORT56(c) SSL_IS_EXPORT56((c)->algo_strength)
432 #define SSL_C_IS_EXPORT40(c) SSL_IS_EXPORT40((c)->algo_strength)
434 #define SSL_EXPORT_KEYLENGTH(a,s) (SSL_IS_EXPORT40(s) ? 5 : \
435 (a) == SSL_DES ? 8 : 7)
436 #define SSL_EXPORT_PKEYLENGTH(a) (SSL_IS_EXPORT40(a) ? 512 : 1024)
437 #define SSL_C_EXPORT_KEYLENGTH(c) SSL_EXPORT_KEYLENGTH((c)->algorithm_enc, \
439 #define SSL_C_EXPORT_PKEYLENGTH(c) SSL_EXPORT_PKEYLENGTH((c)->algo_strength)
441 /* Check if an SSL structure is using DTLS */
442 #define SSL_IS_DTLS(s) (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
443 /* See if we need explicit IV */
444 #define SSL_USE_EXPLICIT_IV(s) \
445 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV)
446 /* See if we use signature algorithms extension
447 * and signature algorithm before signatures.
449 #define SSL_USE_SIGALGS(s) \
450 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS)
452 /* Mostly for SSLv3 */
453 #define SSL_PKEY_RSA_ENC 0
454 #define SSL_PKEY_RSA_SIGN 1
455 #define SSL_PKEY_DSA_SIGN 2
456 #define SSL_PKEY_DH_RSA 3
457 #define SSL_PKEY_DH_DSA 4
458 #define SSL_PKEY_ECC 5
459 #define SSL_PKEY_GOST94 6
460 #define SSL_PKEY_GOST01 7
461 #define SSL_PKEY_NUM 8
463 /* SSL_kRSA <- RSA_ENC | (RSA_TMP & RSA_SIGN) |
464 * <- (EXPORT & (RSA_ENC | RSA_TMP) & RSA_SIGN)
465 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
466 * SSL_kEDH <- RSA_ENC | RSA_SIGN | DSA_SIGN
467 * SSL_aRSA <- RSA_ENC | RSA_SIGN
468 * SSL_aDSS <- DSA_SIGN
472 #define CERT_INVALID 0
473 #define CERT_PUBLIC_KEY 1
474 #define CERT_PRIVATE_KEY 2
477 #ifndef OPENSSL_NO_EC
478 /* From ECC-TLS draft, used in encoding the curve type in
481 #define EXPLICIT_PRIME_CURVE_TYPE 1
482 #define EXPLICIT_CHAR2_CURVE_TYPE 2
483 #define NAMED_CURVE_TYPE 3
484 #endif /* OPENSSL_NO_EC */
486 typedef struct cert_pkey_st
489 EVP_PKEY *privatekey;
490 /* Digest to use when signing */
491 const EVP_MD *digest;
492 /* Chain for this certificate */
493 STACK_OF(X509) *chain;
494 #ifndef OPENSSL_NO_TLSEXT
495 /* authz/authz_length contain authz data for this certificate. The data
496 * is in wire format, specifically it's a series of records like:
497 * uint8_t authz_type; // (RFC 5878, AuthzDataFormat)
499 * uint8_t data[length]; */
500 unsigned char *authz;
503 /* Set if CERT_PKEY can be used with current SSL session: e.g.
504 * appropriate curve, signature algorithms etc. If zero it can't be
509 /* Retrieve Suite B flags */
510 #define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS)
511 /* Uses to check strict mode: suite B modes are always strict */
512 #define SSL_CERT_FLAGS_CHECK_TLS_STRICT \
513 (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT)
515 typedef struct cert_st
517 /* Current active set */
518 CERT_PKEY *key; /* ALWAYS points to an element of the pkeys array
519 * Probably it would make more sense to store
520 * an index, not a pointer. */
522 /* For servers the following masks are for the key and auth
523 * algorithms that are supported by the certs below.
524 * For clients they are masks of *disabled* algorithms based
525 * on the current session.
528 unsigned long mask_k;
529 unsigned long mask_a;
530 unsigned long export_mask_k;
531 unsigned long export_mask_a;
533 unsigned long mask_ssl;
534 #ifndef OPENSSL_NO_RSA
536 RSA *(*rsa_tmp_cb)(SSL *ssl,int is_export,int keysize);
538 #ifndef OPENSSL_NO_DH
540 DH *(*dh_tmp_cb)(SSL *ssl,int is_export,int keysize);
542 #ifndef OPENSSL_NO_ECDH
544 /* Callback for generating ephemeral ECDH keys */
545 EC_KEY *(*ecdh_tmp_cb)(SSL *ssl,int is_export,int keysize);
546 /* Select ECDH parameters automatically */
549 /* Flags related to certificates */
550 unsigned int cert_flags;
551 CERT_PKEY pkeys[SSL_PKEY_NUM];
553 /* Certificate types (received or sent) in certificate request
554 * message. On receive this is only set if number of certificate
555 * types exceeds SSL3_CT_NUMBER.
557 unsigned char *ctypes;
560 /* signature algorithms peer reports: e.g. supported signature
561 * algorithms extension for server or as part of a certificate
562 * request for client.
564 unsigned char *peer_sigalgs;
565 /* Size of above array */
566 size_t peer_sigalgslen;
567 /* suppported signature algorithms.
568 * When set on a client this is sent in the client hello as the
569 * supported signature algorithms extension. For servers
570 * it represents the signature algorithms we are willing to use.
572 unsigned char *conf_sigalgs;
573 /* Size of above array */
574 size_t conf_sigalgslen;
575 /* Client authentication signature algorithms, if not set then
576 * uses conf_sigalgs. On servers these will be the signature
577 * algorithms sent to the client in a cerificate request for TLS 1.2.
578 * On a client this represents the signature algortithms we are
579 * willing to use for client authentication.
581 unsigned char *client_sigalgs;
582 /* Size of above array */
583 size_t client_sigalgslen;
584 /* Signature algorithms shared by client and server: cached
585 * because these are used most often.
587 TLS_SIGALGS *shared_sigalgs;
588 size_t shared_sigalgslen;
590 /* Certificate setup callback: if set is called whenever a
591 * certificate may be required (client or server). the callback
592 * can then examine any appropriate parameters and setup any
593 * certificates required. This allows advanced applications
594 * to select certificates on the fly: for example based on
595 * supported signature algorithms or curves.
597 int (*cert_cb)(SSL *ssl, void *arg);
600 /* Optional X509_STORE for chain building or certificate validation
601 * If NULL the parent SSL_CTX store is used instead.
603 X509_STORE *chain_store;
604 X509_STORE *verify_store;
606 /* Raw values of the cipher list from a client */
607 unsigned char *ciphers_raw;
608 size_t ciphers_rawlen;
610 int references; /* >1 only if SSL_copy_session_id is used */
614 typedef struct sess_cert_st
616 STACK_OF(X509) *cert_chain; /* as received from peer (not for SSL2) */
618 /* The 'peer_...' members are used only by clients. */
621 CERT_PKEY *peer_key; /* points to an element of peer_pkeys (never NULL!) */
622 CERT_PKEY peer_pkeys[SSL_PKEY_NUM];
623 /* Obviously we don't have the private keys of these,
624 * so maybe we shouldn't even use the CERT_PKEY type here. */
626 #ifndef OPENSSL_NO_RSA
627 RSA *peer_rsa_tmp; /* not used for SSL 2 */
629 #ifndef OPENSSL_NO_DH
630 DH *peer_dh_tmp; /* not used for SSL 2 */
632 #ifndef OPENSSL_NO_ECDH
633 EC_KEY *peer_ecdh_tmp;
636 int references; /* actually always 1 at the moment */
638 /* Structure containing decoded values of signature algorithms extension */
639 struct tls_sigalgs_st
641 /* NID of hash algorithm */
643 /* NID of signature algorithm */
645 /* Combined hash and signature NID */
647 /* Raw values used in extension */
652 /*#define MAC_DEBUG */
654 /*#define ERR_DEBUG */
655 /*#define ABORT_DEBUG */
656 /*#define PKT_DEBUG 1 */
657 /*#define DES_DEBUG */
658 /*#define DES_OFB_DEBUG */
659 /*#define SSL_DEBUG */
660 /*#define RSA_DEBUG */
661 /*#define IDEA_DEBUG */
663 #define FP_ICC (int (*)(const void *,const void *))
664 #define ssl_put_cipher_by_char(ssl,ciph,ptr) \
665 ((ssl)->method->put_cipher_by_char((ciph),(ptr)))
667 /* This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff
668 * It is a bit of a mess of functions, but hell, think of it as
669 * an opaque structure :-) */
670 typedef struct ssl3_enc_method
672 int (*enc)(SSL *, int);
673 int (*mac)(SSL *, unsigned char *, int);
674 int (*setup_key_block)(SSL *);
675 int (*generate_master_secret)(SSL *, unsigned char *, unsigned char *, int);
676 int (*change_cipher_state)(SSL *, int);
677 int (*final_finish_mac)(SSL *, const char *, int, unsigned char *);
678 int finish_mac_length;
679 int (*cert_verify_mac)(SSL *, int, unsigned char *);
680 const char *client_finished_label;
681 int client_finished_label_len;
682 const char *server_finished_label;
683 int server_finished_label_len;
684 int (*alert_value)(int);
685 int (*export_keying_material)(SSL *, unsigned char *, size_t,
686 const char *, size_t,
687 const unsigned char *, size_t,
689 /* Various flags indicating protocol version requirements */
690 unsigned int enc_flags;
691 /* Handshake header length */
693 /* Set the handshake header */
694 void (*set_handshake_header)(SSL *s, int type, unsigned long len);
695 /* Write out handshake message */
696 int (*do_write)(SSL *s);
699 #define SSL_HM_HEADER_LENGTH(s) s->method->ssl3_enc->hhlen
700 #define ssl_handshake_start(s) \
701 (((unsigned char *)s->init_buf->data) + s->method->ssl3_enc->hhlen)
702 #define ssl_set_handshake_header(s, htype, len) \
703 s->method->ssl3_enc->set_handshake_header(s, htype, len)
704 #define ssl_do_write(s) s->method->ssl3_enc->do_write(s)
706 /* Values for enc_flags */
708 /* Uses explicit IV for CBC mode */
709 #define SSL_ENC_FLAG_EXPLICIT_IV 0x1
710 /* Uses signature algorithms extension */
711 #define SSL_ENC_FLAG_SIGALGS 0x2
712 /* Uses SHA256 default PRF */
713 #define SSL_ENC_FLAG_SHA256_PRF 0x4
715 #define SSL_ENC_FLAG_DTLS 0x8
717 #ifndef OPENSSL_NO_COMP
718 /* Used for holding the relevant compression methods loaded into SSL_CTX */
719 typedef struct ssl3_comp_st
721 int comp_id; /* The identifier byte for this compression type */
722 char *name; /* Text name used for the compression type */
723 COMP_METHOD *method; /* The method :-) */
727 #ifndef OPENSSL_NO_BUF_FREELISTS
728 typedef struct ssl3_buf_freelist_st
732 struct ssl3_buf_freelist_entry_st *head;
735 typedef struct ssl3_buf_freelist_entry_st
737 struct ssl3_buf_freelist_entry_st *next;
738 } SSL3_BUF_FREELIST_ENTRY;
741 extern SSL3_ENC_METHOD ssl3_undef_enc_method;
742 OPENSSL_EXTERN const SSL_CIPHER ssl2_ciphers[];
743 OPENSSL_EXTERN SSL_CIPHER ssl3_ciphers[];
746 SSL_METHOD *ssl_bad_method(int ver);
748 extern SSL3_ENC_METHOD TLSv1_enc_data;
749 extern SSL3_ENC_METHOD TLSv1_1_enc_data;
750 extern SSL3_ENC_METHOD TLSv1_2_enc_data;
751 extern SSL3_ENC_METHOD SSLv3_enc_data;
752 extern SSL3_ENC_METHOD DTLSv1_enc_data;
754 #define IMPLEMENT_tls_meth_func(version, func_name, s_accept, s_connect, \
755 s_get_meth, enc_data) \
756 const SSL_METHOD *func_name(void) \
758 static const SSL_METHOD func_name##_data= { \
770 ssl3_renegotiate_check, \
774 ssl3_dispatch_alert, \
777 ssl3_get_cipher_by_char, \
778 ssl3_put_cipher_by_char, \
783 tls1_default_timeout, \
785 ssl_undefined_void_function, \
786 ssl3_callback_ctrl, \
787 ssl3_ctx_callback_ctrl, \
789 return &func_name##_data; \
792 #define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect, s_get_meth) \
793 const SSL_METHOD *func_name(void) \
795 static const SSL_METHOD func_name##_data= { \
807 ssl3_renegotiate_check, \
811 ssl3_dispatch_alert, \
814 ssl3_get_cipher_by_char, \
815 ssl3_put_cipher_by_char, \
820 ssl3_default_timeout, \
822 ssl_undefined_void_function, \
823 ssl3_callback_ctrl, \
824 ssl3_ctx_callback_ctrl, \
826 return &func_name##_data; \
829 #define IMPLEMENT_ssl23_meth_func(func_name, s_accept, s_connect, s_get_meth) \
830 const SSL_METHOD *func_name(void) \
832 static const SSL_METHOD func_name##_data= { \
842 ssl_undefined_function, \
843 ssl_undefined_function, \
848 ssl3_dispatch_alert, \
851 ssl23_get_cipher_by_char, \
852 ssl23_put_cipher_by_char, \
853 ssl_undefined_const_function, \
857 ssl23_default_timeout, \
858 &ssl3_undef_enc_method, \
859 ssl_undefined_void_function, \
860 ssl3_callback_ctrl, \
861 ssl3_ctx_callback_ctrl, \
863 return &func_name##_data; \
866 #define IMPLEMENT_ssl2_meth_func(func_name, s_accept, s_connect, s_get_meth) \
867 const SSL_METHOD *func_name(void) \
869 static const SSL_METHOD func_name##_data= { \
871 ssl2_new, /* local */ \
872 ssl2_clear, /* local */ \
873 ssl2_free, /* local */ \
880 ssl_ok, /* NULL - renegotiate */ \
881 ssl_ok, /* NULL - check renegotiate */ \
882 NULL, /* NULL - ssl_get_message */ \
883 NULL, /* NULL - ssl_get_record */ \
884 NULL, /* NULL - ssl_write_bytes */ \
885 NULL, /* NULL - dispatch_alert */ \
886 ssl2_ctrl, /* local */ \
887 ssl2_ctx_ctrl, /* local */ \
888 ssl2_get_cipher_by_char, \
889 ssl2_put_cipher_by_char, \
894 ssl2_default_timeout, \
895 &ssl3_undef_enc_method, \
896 ssl_undefined_void_function, \
897 ssl2_callback_ctrl, /* local */ \
898 ssl2_ctx_callback_ctrl, /* local */ \
900 return &func_name##_data; \
903 #define IMPLEMENT_dtls1_meth_func(version, func_name, s_accept, s_connect, \
904 s_get_meth, enc_data) \
905 const SSL_METHOD *func_name(void) \
907 static const SSL_METHOD func_name##_data= { \
919 ssl3_renegotiate_check, \
922 dtls1_write_app_data_bytes, \
923 dtls1_dispatch_alert, \
926 ssl3_get_cipher_by_char, \
927 ssl3_put_cipher_by_char, \
932 dtls1_default_timeout, \
934 ssl_undefined_void_function, \
935 ssl3_callback_ctrl, \
936 ssl3_ctx_callback_ctrl, \
938 return &func_name##_data; \
941 void ssl_clear_cipher_ctx(SSL *s);
942 int ssl_clear_bad_session(SSL *s);
943 CERT *ssl_cert_new(void);
944 CERT *ssl_cert_dup(CERT *cert);
945 void ssl_cert_set_default_md(CERT *cert);
946 int ssl_cert_inst(CERT **o);
947 void ssl_cert_clear_certs(CERT *c);
948 void ssl_cert_free(CERT *c);
949 SESS_CERT *ssl_sess_cert_new(void);
950 void ssl_sess_cert_free(SESS_CERT *sc);
951 int ssl_set_peer_cert_type(SESS_CERT *c, int type);
952 int ssl_get_new_session(SSL *s, int session);
953 int ssl_get_prev_session(SSL *s, unsigned char *session,int len, const unsigned char *limit);
954 int ssl_cipher_id_cmp(const SSL_CIPHER *a,const SSL_CIPHER *b);
955 DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER,
957 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
958 const SSL_CIPHER * const *bp);
959 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
960 STACK_OF(SSL_CIPHER) **skp);
961 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
962 int (*put_cb)(const SSL_CIPHER *, unsigned char *));
963 STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth,
964 STACK_OF(SSL_CIPHER) **pref,
965 STACK_OF(SSL_CIPHER) **sorted,
966 const char *rule_str, CERT *c);
967 void ssl_update_cache(SSL *s, int mode);
968 int ssl_cipher_get_evp(const SSL_SESSION *s,const EVP_CIPHER **enc,
969 const EVP_MD **md,int *mac_pkey_type,int *mac_secret_size, SSL_COMP **comp);
970 int ssl_get_handshake_digest(int i,long *mask,const EVP_MD **md);
971 int ssl_cipher_get_cert_index(const SSL_CIPHER *c);
972 const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr);
973 int ssl_cert_set0_chain(CERT *c, STACK_OF(X509) *chain);
974 int ssl_cert_set1_chain(CERT *c, STACK_OF(X509) *chain);
975 int ssl_cert_add0_chain_cert(CERT *c, X509 *x);
976 int ssl_cert_add1_chain_cert(CERT *c, X509 *x);
977 void ssl_cert_set_cert_cb(CERT *c, int (*cb)(SSL *ssl, void *arg), void *arg);
979 int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk);
980 int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l);
981 int ssl_build_cert_chain(CERT *c, X509_STORE *chain_store, int flags);
982 int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref);
983 int ssl_undefined_function(SSL *s);
984 int ssl_undefined_void_function(void);
985 int ssl_undefined_const_function(const SSL *s);
986 CERT_PKEY *ssl_get_server_send_pkey(const SSL *s);
987 unsigned char *ssl_get_authz_data(SSL *s, size_t *authz_length);
988 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *c, const EVP_MD **pmd);
989 int ssl_cert_type(X509 *x,EVP_PKEY *pkey);
990 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher);
991 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
992 int ssl_verify_alarm_type(long type);
993 void ssl_load_ciphers(void);
995 int ssl2_enc_init(SSL *s, int client);
996 int ssl2_generate_key_material(SSL *s);
997 void ssl2_enc(SSL *s,int send_data);
998 void ssl2_mac(SSL *s,unsigned char *mac,int send_data);
999 const SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p);
1000 int ssl2_put_cipher_by_char(const SSL_CIPHER *c,unsigned char *p);
1001 int ssl2_part_read(SSL *s, unsigned long f, int i);
1002 int ssl2_do_write(SSL *s);
1003 int ssl2_set_certificate(SSL *s, int type, int len, const unsigned char *data);
1004 void ssl2_return_error(SSL *s,int reason);
1005 void ssl2_write_error(SSL *s);
1006 int ssl2_num_ciphers(void);
1007 const SSL_CIPHER *ssl2_get_cipher(unsigned int u);
1008 int ssl2_new(SSL *s);
1009 void ssl2_free(SSL *s);
1010 int ssl2_accept(SSL *s);
1011 int ssl2_connect(SSL *s);
1012 int ssl2_read(SSL *s, void *buf, int len);
1013 int ssl2_peek(SSL *s, void *buf, int len);
1014 int ssl2_write(SSL *s, const void *buf, int len);
1015 int ssl2_shutdown(SSL *s);
1016 void ssl2_clear(SSL *s);
1017 long ssl2_ctrl(SSL *s,int cmd, long larg, void *parg);
1018 long ssl2_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg);
1019 long ssl2_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
1020 long ssl2_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)(void));
1021 int ssl2_pending(const SSL *s);
1022 long ssl2_default_timeout(void );
1024 const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
1025 int ssl3_put_cipher_by_char(const SSL_CIPHER *c,unsigned char *p);
1026 void ssl3_init_finished_mac(SSL *s);
1027 int ssl3_send_server_certificate(SSL *s);
1028 int ssl3_send_newsession_ticket(SSL *s);
1029 int ssl3_send_cert_status(SSL *s);
1030 int ssl3_get_finished(SSL *s,int state_a,int state_b);
1031 int ssl3_setup_key_block(SSL *s);
1032 int ssl3_send_change_cipher_spec(SSL *s,int state_a,int state_b);
1033 int ssl3_change_cipher_state(SSL *s,int which);
1034 void ssl3_cleanup_key_block(SSL *s);
1035 int ssl3_do_write(SSL *s,int type);
1036 int ssl3_send_alert(SSL *s,int level, int desc);
1037 int ssl3_generate_master_secret(SSL *s, unsigned char *out,
1038 unsigned char *p, int len);
1039 int ssl3_get_req_cert_type(SSL *s,unsigned char *p);
1040 long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
1041 int ssl3_send_finished(SSL *s, int a, int b, const char *sender,int slen);
1042 int ssl3_num_ciphers(void);
1043 const SSL_CIPHER *ssl3_get_cipher(unsigned int u);
1044 int ssl3_renegotiate(SSL *ssl);
1045 int ssl3_renegotiate_check(SSL *ssl);
1046 int ssl3_dispatch_alert(SSL *s);
1047 int ssl3_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
1048 int ssl3_write_bytes(SSL *s, int type, const void *buf, int len);
1049 int ssl3_final_finish_mac(SSL *s, const char *sender, int slen,unsigned char *p);
1050 int ssl3_cert_verify_mac(SSL *s, int md_nid, unsigned char *p);
1051 void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len);
1052 int ssl3_enc(SSL *s, int send_data);
1053 int n_ssl3_mac(SSL *ssl, unsigned char *md, int send_data);
1054 void ssl3_free_digest_list(SSL *s);
1055 unsigned long ssl3_output_cert_chain(SSL *s, CERT_PKEY *cpk);
1056 SSL_CIPHER *ssl3_choose_cipher(SSL *ssl,STACK_OF(SSL_CIPHER) *clnt,
1057 STACK_OF(SSL_CIPHER) *srvr);
1058 int ssl3_setup_buffers(SSL *s);
1059 int ssl3_setup_read_buffer(SSL *s);
1060 int ssl3_setup_write_buffer(SSL *s);
1061 int ssl3_release_read_buffer(SSL *s);
1062 int ssl3_release_write_buffer(SSL *s);
1063 int ssl3_digest_cached_records(SSL *s);
1064 int ssl3_new(SSL *s);
1065 void ssl3_free(SSL *s);
1066 int ssl3_accept(SSL *s);
1067 int ssl3_connect(SSL *s);
1068 int ssl3_read(SSL *s, void *buf, int len);
1069 int ssl3_peek(SSL *s, void *buf, int len);
1070 int ssl3_write(SSL *s, const void *buf, int len);
1071 int ssl3_shutdown(SSL *s);
1072 void ssl3_clear(SSL *s);
1073 long ssl3_ctrl(SSL *s,int cmd, long larg, void *parg);
1074 long ssl3_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg);
1075 long ssl3_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
1076 long ssl3_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)(void));
1077 int ssl3_pending(const SSL *s);
1079 void ssl3_record_sequence_update(unsigned char *seq);
1080 int ssl3_do_change_cipher_spec(SSL *ssl);
1081 long ssl3_default_timeout(void );
1083 void ssl3_set_handshake_header(SSL *s, int htype, unsigned long len);
1084 int ssl3_handshake_write(SSL *s);
1086 int ssl23_num_ciphers(void );
1087 const SSL_CIPHER *ssl23_get_cipher(unsigned int u);
1088 int ssl23_read(SSL *s, void *buf, int len);
1089 int ssl23_peek(SSL *s, void *buf, int len);
1090 int ssl23_write(SSL *s, const void *buf, int len);
1091 int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
1092 const SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p);
1093 long ssl23_default_timeout(void );
1095 long tls1_default_timeout(void);
1096 int dtls1_do_write(SSL *s,int type);
1097 int ssl3_read_n(SSL *s, int n, int max, int extend);
1098 int dtls1_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
1099 int ssl3_do_compress(SSL *ssl);
1100 int ssl3_do_uncompress(SSL *ssl);
1101 int ssl3_write_pending(SSL *s, int type, const unsigned char *buf,
1103 unsigned char *dtls1_set_message_header(SSL *s,
1104 unsigned char *p, unsigned char mt, unsigned long len,
1105 unsigned long frag_off, unsigned long frag_len);
1107 int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len);
1108 int dtls1_write_bytes(SSL *s, int type, const void *buf, int len);
1110 int dtls1_send_change_cipher_spec(SSL *s, int a, int b);
1111 int dtls1_send_finished(SSL *s, int a, int b, const char *sender, int slen);
1112 unsigned long dtls1_output_cert_chain(SSL *s, CERT_PKEY *cpk);
1113 int dtls1_read_failed(SSL *s, int code);
1114 int dtls1_buffer_message(SSL *s, int ccs);
1115 int dtls1_retransmit_message(SSL *s, unsigned short seq,
1116 unsigned long frag_off, int *found);
1117 int dtls1_get_queue_priority(unsigned short seq, int is_ccs);
1118 int dtls1_retransmit_buffered_messages(SSL *s);
1119 void dtls1_clear_record_buffer(SSL *s);
1120 void dtls1_get_message_header(unsigned char *data, struct hm_header_st *msg_hdr);
1121 void dtls1_get_ccs_header(unsigned char *data, struct ccs_header_st *ccs_hdr);
1122 void dtls1_reset_seq_numbers(SSL *s, int rw);
1123 long dtls1_default_timeout(void);
1124 struct timeval* dtls1_get_timeout(SSL *s, struct timeval* timeleft);
1125 int dtls1_check_timeout_num(SSL *s);
1126 int dtls1_handle_timeout(SSL *s);
1127 const SSL_CIPHER *dtls1_get_cipher(unsigned int u);
1128 void dtls1_start_timer(SSL *s);
1129 void dtls1_stop_timer(SSL *s);
1130 int dtls1_is_timer_expired(SSL *s);
1131 void dtls1_double_timeout(SSL *s);
1132 int dtls1_send_newsession_ticket(SSL *s);
1133 unsigned int dtls1_min_mtu(void);
1135 /* some client-only functions */
1136 int ssl3_client_hello(SSL *s);
1137 int ssl3_get_server_hello(SSL *s);
1138 int ssl3_get_certificate_request(SSL *s);
1139 int ssl3_get_new_session_ticket(SSL *s);
1140 int ssl3_get_cert_status(SSL *s);
1141 int ssl3_get_server_done(SSL *s);
1142 int ssl3_send_client_verify(SSL *s);
1143 int ssl3_send_client_certificate(SSL *s);
1144 int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey);
1145 int ssl3_send_client_key_exchange(SSL *s);
1146 int ssl3_get_key_exchange(SSL *s);
1147 int ssl3_get_server_certificate(SSL *s);
1148 int ssl3_check_cert_and_algorithm(SSL *s);
1149 #ifndef OPENSSL_NO_TLSEXT
1150 int ssl3_check_finished(SSL *s);
1151 # ifndef OPENSSL_NO_NEXTPROTONEG
1152 int ssl3_send_next_proto(SSL *s);
1156 int dtls1_client_hello(SSL *s);
1158 /* some server-only functions */
1159 int ssl3_get_client_hello(SSL *s);
1160 int ssl3_send_server_hello(SSL *s);
1161 int ssl3_send_hello_request(SSL *s);
1162 int ssl3_send_server_key_exchange(SSL *s);
1163 int ssl3_send_certificate_request(SSL *s);
1164 int ssl3_send_server_done(SSL *s);
1165 int ssl3_check_client_hello(SSL *s);
1166 int ssl3_get_client_certificate(SSL *s);
1167 int ssl3_get_client_key_exchange(SSL *s);
1168 int ssl3_get_cert_verify(SSL *s);
1169 #ifndef OPENSSL_NO_NEXTPROTONEG
1170 int ssl3_get_next_proto(SSL *s);
1173 int ssl23_accept(SSL *s);
1174 int ssl23_connect(SSL *s);
1175 int ssl23_read_bytes(SSL *s, int n);
1176 int ssl23_write_bytes(SSL *s);
1178 int tls1_new(SSL *s);
1179 void tls1_free(SSL *s);
1180 void tls1_clear(SSL *s);
1181 long tls1_ctrl(SSL *s,int cmd, long larg, void *parg);
1182 long tls1_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
1184 int dtls1_new(SSL *s);
1185 int dtls1_accept(SSL *s);
1186 int dtls1_connect(SSL *s);
1187 void dtls1_free(SSL *s);
1188 void dtls1_clear(SSL *s);
1189 long dtls1_ctrl(SSL *s,int cmd, long larg, void *parg);
1190 int dtls1_shutdown(SSL *s);
1192 long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
1193 int dtls1_get_record(SSL *s);
1194 int do_dtls1_write(SSL *s, int type, const unsigned char *buf,
1195 unsigned int len, int create_empty_fragement);
1196 int dtls1_dispatch_alert(SSL *s);
1197 int dtls1_enc(SSL *s, int snd);
1199 int ssl_init_wbio_buffer(SSL *s, int push);
1200 void ssl_free_wbio_buffer(SSL *s);
1202 int tls1_change_cipher_state(SSL *s, int which);
1203 int tls1_setup_key_block(SSL *s);
1204 int tls1_enc(SSL *s, int snd);
1205 int tls1_final_finish_mac(SSL *s,
1206 const char *str, int slen, unsigned char *p);
1207 int tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *p);
1208 int tls1_mac(SSL *ssl, unsigned char *md, int snd);
1209 int tls1_generate_master_secret(SSL *s, unsigned char *out,
1210 unsigned char *p, int len);
1211 int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1212 const char *label, size_t llen,
1213 const unsigned char *p, size_t plen, int use_context);
1214 int tls1_alert_code(int code);
1215 int ssl3_alert_code(int code);
1218 #ifndef OPENSSL_NO_ECDH
1219 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s);
1222 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
1224 #ifndef OPENSSL_NO_EC
1225 int tls1_ec_curve_id2nid(int curve_id);
1226 int tls1_ec_nid2curve_id(int nid);
1227 int tls1_check_curve(SSL *s, const unsigned char *p, size_t len);
1228 int tls1_shared_curve(SSL *s, int nmatch);
1229 int tls1_set_curves(unsigned char **pext, size_t *pextlen,
1230 int *curves, size_t ncurves);
1231 int tls1_set_curves_list(unsigned char **pext, size_t *pextlen,
1233 int tls1_check_ec_tmp_key(SSL *s, unsigned long id);
1234 #endif /* OPENSSL_NO_EC */
1236 #ifndef OPENSSL_NO_TLSEXT
1237 int tls1_shared_list(SSL *s,
1238 const unsigned char *l1, size_t l1len,
1239 const unsigned char *l2, size_t l2len,
1241 unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *p, unsigned char *limit);
1242 unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *p, unsigned char *limit);
1243 int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n);
1244 int ssl_check_clienthello_tlsext_late(SSL *s);
1245 int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n);
1246 int ssl_prepare_clienthello_tlsext(SSL *s);
1247 int ssl_prepare_serverhello_tlsext(SSL *s);
1250 int tls1_send_server_supplemental_data(SSL *s);
1252 int tls1_get_server_supplemental_data(SSL *s);
1254 #ifndef OPENSSL_NO_HEARTBEATS
1255 int tls1_heartbeat(SSL *s);
1256 int dtls1_heartbeat(SSL *s);
1257 int tls1_process_heartbeat(SSL *s);
1258 int dtls1_process_heartbeat(SSL *s);
1261 #ifdef OPENSSL_NO_SHA256
1262 #define tlsext_tick_md EVP_sha1
1264 #define tlsext_tick_md EVP_sha256
1266 int tls1_process_ticket(SSL *s, unsigned char *session_id, int len,
1267 const unsigned char *limit, SSL_SESSION **ret);
1269 int tls12_get_sigandhash(unsigned char *p, const EVP_PKEY *pk,
1271 int tls12_get_sigid(const EVP_PKEY *pk);
1272 const EVP_MD *tls12_get_hash(unsigned char hash_alg);
1274 int tls1_set_sigalgs_list(CERT *c, const char *str, int client);
1275 int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen, int client);
1276 int tls1_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain,
1278 void tls1_set_cert_validity(SSL *s);
1281 EVP_MD_CTX* ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md) ;
1282 void ssl_clear_hash_ctx(EVP_MD_CTX **hash);
1283 int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
1285 int ssl_parse_serverhello_renegotiate_ext(SSL *s, unsigned char *d, int len,
1287 int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
1289 int ssl_parse_clienthello_renegotiate_ext(SSL *s, unsigned char *d, int len,
1291 long ssl_get_algorithm2(SSL *s);
1292 int tls1_process_sigalgs(SSL *s, const unsigned char *data, int dsize);
1293 size_t tls12_get_psigalgs(SSL *s, const unsigned char **psigs);
1294 int tls12_check_peer_sigalg(const EVP_MD **pmd, SSL *s,
1295 const unsigned char *sig, EVP_PKEY *pkey);
1296 void ssl_set_client_disabled(SSL *s);
1298 int ssl_add_clienthello_use_srtp_ext(SSL *s, unsigned char *p, int *len, int maxlen);
1299 int ssl_parse_clienthello_use_srtp_ext(SSL *s, unsigned char *d, int len,int *al);
1300 int ssl_add_serverhello_use_srtp_ext(SSL *s, unsigned char *p, int *len, int maxlen);
1301 int ssl_parse_serverhello_use_srtp_ext(SSL *s, unsigned char *d, int len,int *al);
1304 void ssl3_cbc_copy_mac(unsigned char* out,
1305 const SSL3_RECORD *rec,
1307 int ssl3_cbc_remove_padding(const SSL* s,
1309 unsigned block_size,
1311 int tls1_cbc_remove_padding(const SSL* s,
1313 unsigned block_size,
1315 char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx);
1316 void ssl3_cbc_digest_record(
1317 const EVP_MD_CTX *ctx,
1318 unsigned char* md_out,
1319 size_t* md_out_size,
1320 const unsigned char header[13],
1321 const unsigned char *data,
1322 size_t data_plus_mac_size,
1323 size_t data_plus_mac_plus_padding_size,
1324 const unsigned char *mac_secret,
1325 unsigned mac_secret_length,
1328 void tls_fips_digest_extra(
1329 const EVP_CIPHER_CTX *cipher_ctx, EVP_MD_CTX *mac_ctx,
1330 const unsigned char *data, size_t data_len, size_t orig_len);