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 #define SSL_kRSA 0x00000001L /* RSA key exchange */
292 #define SSL_kDHr 0x00000002L /* DH cert, RSA CA cert */ /* no such ciphersuites supported! */
293 #define SSL_kDHd 0x00000004L /* DH cert, DSA CA cert */ /* no such ciphersuite supported! */
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 */
302
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) */ /* no such ciphersuites supported! */
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 */
314
315
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
331
332 #define SSL_AES (SSL_AES128|SSL_AES256|SSL_AES128GCM|SSL_AES256GCM)
333 #define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256)
334
335
336 /* Bits for algorithm_mac (symmetric authentication) */
337
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
346
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
352
353
354 /* Bits for algorithm2 (handshake digests and other extra flags) */
355
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)
362
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
366
367 #define TLS1_PRF_DGST_MASK (0xff << TLS1_PRF_DGST_SHIFT)
368
369 #define TLS1_PRF_DGST_SHIFT 10
370 #define TLS1_PRF_MD5 (SSL_HANDSHAKE_MAC_MD5 << TLS1_PRF_DGST_SHIFT)
371 #define TLS1_PRF_SHA1 (SSL_HANDSHAKE_MAC_SHA << TLS1_PRF_DGST_SHIFT)
372 #define TLS1_PRF_SHA256 (SSL_HANDSHAKE_MAC_SHA256 << TLS1_PRF_DGST_SHIFT)
373 #define TLS1_PRF_SHA384 (SSL_HANDSHAKE_MAC_SHA384 << TLS1_PRF_DGST_SHIFT)
374 #define TLS1_PRF_GOST94 (SSL_HANDSHAKE_MAC_GOST94 << TLS1_PRF_DGST_SHIFT)
375 #define TLS1_PRF (TLS1_PRF_MD5 | TLS1_PRF_SHA1)
376
377 /* Stream MAC for GOST ciphersuites from cryptopro draft
378 * (currently this also goes into algorithm2) */
379 #define TLS1_STREAM_MAC 0x04
380
381
382
383 /*
384 * Export and cipher strength information. For each cipher we have to decide
385 * whether it is exportable or not. This information is likely to change
386 * over time, since the export control rules are no static technical issue.
387 *
388 * Independent of the export flag the cipher strength is sorted into classes.
389 * SSL_EXP40 was denoting the 40bit US export limit of past times, which now
390 * is at 56bit (SSL_EXP56). If the exportable cipher class is going to change
391 * again (eg. to 64bit) the use of "SSL_EXP*" becomes blurred even more,
392 * since SSL_EXP64 could be similar to SSL_LOW.
393 * For this reason SSL_MICRO and SSL_MINI macros are included to widen the
394 * namespace of SSL_LOW-SSL_HIGH to lower values. As development of speed
395 * and ciphers goes, another extension to SSL_SUPER and/or SSL_ULTRA would
396 * be possible.
397 */
398 #define SSL_EXP_MASK 0x00000003L
399 #define SSL_STRONG_MASK 0x000001fcL
400
401 #define SSL_NOT_EXP 0x00000001L
402 #define SSL_EXPORT 0x00000002L
403
404 #define SSL_STRONG_NONE 0x00000004L
405 #define SSL_EXP40 0x00000008L
406 #define SSL_MICRO (SSL_EXP40)
407 #define SSL_EXP56 0x00000010L
408 #define SSL_MINI (SSL_EXP56)
409 #define SSL_LOW 0x00000020L
410 #define SSL_MEDIUM 0x00000040L
411 #define SSL_HIGH 0x00000080L
412 #define SSL_FIPS 0x00000100L
413
414 /* we have used 000001ff - 23 bits left to go */
415
416 /*
417 * Macros to check the export status and cipher strength for export ciphers.
418 * Even though the macros for EXPORT and EXPORT40/56 have similar names,
419 * their meaning is different:
420 * *_EXPORT macros check the 'exportable' status.
421 * *_EXPORT40/56 macros are used to check whether a certain cipher strength
422 * is given.
423 * Since the SSL_IS_EXPORT* and SSL_EXPORT* macros depend on the correct
424 * algorithm structure element to be passed (algorithms, algo_strength) and no
425 * typechecking can be done as they are all of type unsigned long, their
426 * direct usage is discouraged.
427 * Use the SSL_C_* macros instead.
428 */
429 #define SSL_IS_EXPORT(a) ((a)&SSL_EXPORT)
430 #define SSL_IS_EXPORT56(a) ((a)&SSL_EXP56)
431 #define SSL_IS_EXPORT40(a) ((a)&SSL_EXP40)
432 #define SSL_C_IS_EXPORT(c) SSL_IS_EXPORT((c)->algo_strength)
433 #define SSL_C_IS_EXPORT56(c) SSL_IS_EXPORT56((c)->algo_strength)
434 #define SSL_C_IS_EXPORT40(c) SSL_IS_EXPORT40((c)->algo_strength)
435
436 #define SSL_EXPORT_KEYLENGTH(a,s) (SSL_IS_EXPORT40(s) ? 5 : \
437 (a) == SSL_DES ? 8 : 7)
438 #define SSL_EXPORT_PKEYLENGTH(a) (SSL_IS_EXPORT40(a) ? 512 : 1024)
439 #define SSL_C_EXPORT_KEYLENGTH(c) SSL_EXPORT_KEYLENGTH((c)->algorithm_enc, \
440 (c)->algo_strength)
441 #define SSL_C_EXPORT_PKEYLENGTH(c) SSL_EXPORT_PKEYLENGTH((c)->algo_strength)
442
443
444
445
446 /* Mostly for SSLv3 */
447 #define SSL_PKEY_RSA_ENC 0
448 #define SSL_PKEY_RSA_SIGN 1
449 #define SSL_PKEY_DSA_SIGN 2
450 #define SSL_PKEY_DH_RSA 3
451 #define SSL_PKEY_DH_DSA 4
452 #define SSL_PKEY_ECC 5
453 #define SSL_PKEY_GOST94 6
454 #define SSL_PKEY_GOST01 7
455 #define SSL_PKEY_NUM 8
456
457 /* SSL_kRSA <- RSA_ENC | (RSA_TMP & RSA_SIGN) |
458 * <- (EXPORT & (RSA_ENC | RSA_TMP) & RSA_SIGN)
459 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
460 * SSL_kEDH <- RSA_ENC | RSA_SIGN | DSA_SIGN
461 * SSL_aRSA <- RSA_ENC | RSA_SIGN
462 * SSL_aDSS <- DSA_SIGN
463 */
464
465 /*
466 #define CERT_INVALID 0
467 #define CERT_PUBLIC_KEY 1
468 #define CERT_PRIVATE_KEY 2
469 */
470
471 #ifndef OPENSSL_NO_EC
472 /* From ECC-TLS draft, used in encoding the curve type in
473 * ECParameters
474 */
475 #define EXPLICIT_PRIME_CURVE_TYPE 1
476 #define EXPLICIT_CHAR2_CURVE_TYPE 2
477 #define NAMED_CURVE_TYPE 3
478 #endif /* OPENSSL_NO_EC */
479
480 typedef struct cert_pkey_st
481 {
482 X509 *x509;
483 EVP_PKEY *privatekey;
484 /* Digest to use when signing */
485 const EVP_MD *digest;
486 } CERT_PKEY;
487
488 typedef struct cert_st
489 {
490 /* Current active set */
491 CERT_PKEY *key; /* ALWAYS points to an element of the pkeys array
492 * Probably it would make more sense to store
493 * an index, not a pointer. */
494
495 /* The following masks are for the key and auth
496 * algorithms that are supported by the certs below */
497 int valid;
498 unsigned long mask_k;
499 unsigned long mask_a;
500 unsigned long export_mask_k;
501 unsigned long export_mask_a;
502 #ifndef OPENSSL_NO_RSA
503 RSA *rsa_tmp;
504 RSA *(*rsa_tmp_cb)(SSL *ssl,int is_export,int keysize);
505 #endif
506 #ifndef OPENSSL_NO_DH
507 DH *dh_tmp;
508 DH *(*dh_tmp_cb)(SSL *ssl,int is_export,int keysize);
509 #endif
510 #ifndef OPENSSL_NO_ECDH
511 EC_KEY *ecdh_tmp;
512 /* Callback for generating ephemeral ECDH keys */
513 EC_KEY *(*ecdh_tmp_cb)(SSL *ssl,int is_export,int keysize);
514 #endif
515
516 CERT_PKEY pkeys[SSL_PKEY_NUM];
517
518 int references; /* >1 only if SSL_copy_session_id is used */
519 } CERT;
520
521
522 typedef struct sess_cert_st
523 {
524 STACK_OF(X509) *cert_chain; /* as received from peer (not for SSL2) */
525
526 /* The 'peer_...' members are used only by clients. */
527 int peer_cert_type;
528
529 CERT_PKEY *peer_key; /* points to an element of peer_pkeys (never NULL!) */
530 CERT_PKEY peer_pkeys[SSL_PKEY_NUM];
531 /* Obviously we don't have the private keys of these,
532 * so maybe we shouldn't even use the CERT_PKEY type here. */
533
534 #ifndef OPENSSL_NO_RSA
535 RSA *peer_rsa_tmp; /* not used for SSL 2 */
536 #endif
537 #ifndef OPENSSL_NO_DH
538 DH *peer_dh_tmp; /* not used for SSL 2 */
539 #endif
540 #ifndef OPENSSL_NO_ECDH
541 EC_KEY *peer_ecdh_tmp;
542 #endif
543
544 int references; /* actually always 1 at the moment */
545 } SESS_CERT;
546
547
548 /*#define MAC_DEBUG */
549
550 /*#define ERR_DEBUG */
551 /*#define ABORT_DEBUG */
552 /*#define PKT_DEBUG 1 */
553 /*#define DES_DEBUG */
554 /*#define DES_OFB_DEBUG */
555 /*#define SSL_DEBUG */
556 /*#define RSA_DEBUG */
557 /*#define IDEA_DEBUG */
558
559 #define FP_ICC (int (*)(const void *,const void *))
560 #define ssl_put_cipher_by_char(ssl,ciph,ptr) \
561 ((ssl)->method->put_cipher_by_char((ciph),(ptr)))
562 #define ssl_get_cipher_by_char(ssl,ptr) \
563 ((ssl)->method->get_cipher_by_char(ptr))
564
565 /* This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff
566 * It is a bit of a mess of functions, but hell, think of it as
567 * an opaque structure :-) */
568 typedef struct ssl3_enc_method
569 {
570 int (*enc)(SSL *, int);
571 int (*mac)(SSL *, unsigned char *, int);
572 int (*setup_key_block)(SSL *);
573 int (*generate_master_secret)(SSL *, unsigned char *, unsigned char *, int);
574 int (*change_cipher_state)(SSL *, int);
575 int (*final_finish_mac)(SSL *, const char *, int, unsigned char *);
576 int finish_mac_length;
577 int (*cert_verify_mac)(SSL *, int, unsigned char *);
578 const char *client_finished_label;
579 int client_finished_label_len;
580 const char *server_finished_label;
581 int server_finished_label_len;
582 int (*alert_value)(int);
583 int (*export_keying_material)(SSL *, unsigned char *, size_t,
584 const char *, size_t,
585 const unsigned char *, size_t,
586 int use_context);
587 } SSL3_ENC_METHOD;
588
589 #ifndef OPENSSL_NO_COMP
590 /* Used for holding the relevant compression methods loaded into SSL_CTX */
591 typedef struct ssl3_comp_st
592 {
593 int comp_id; /* The identifier byte for this compression type */
594 char *name; /* Text name used for the compression type */
595 COMP_METHOD *method; /* The method :-) */
596 } SSL3_COMP;
597 #endif
598
599 #ifndef OPENSSL_NO_BUF_FREELISTS
600 typedef struct ssl3_buf_freelist_st
601 {
602 size_t chunklen;
603 unsigned int len;
604 struct ssl3_buf_freelist_entry_st *head;
605 } SSL3_BUF_FREELIST;
606
607 typedef struct ssl3_buf_freelist_entry_st
608 {
609 struct ssl3_buf_freelist_entry_st *next;
610 } SSL3_BUF_FREELIST_ENTRY;
611 #endif
612
613 extern SSL3_ENC_METHOD ssl3_undef_enc_method;
614 OPENSSL_EXTERN const SSL_CIPHER ssl2_ciphers[];
615 OPENSSL_EXTERN SSL_CIPHER ssl3_ciphers[];
616
617
618 SSL_METHOD *ssl_bad_method(int ver);
619
620 extern SSL3_ENC_METHOD TLSv1_enc_data;
621 extern SSL3_ENC_METHOD SSLv3_enc_data;
622 extern SSL3_ENC_METHOD DTLSv1_enc_data;
623
624 #define SSL_IS_DTLS(s) (s->method->version == DTLS1_VERSION)
625
626 #define IMPLEMENT_tls_meth_func(version, func_name, s_accept, s_connect, \
627 s_get_meth) \
628 const SSL_METHOD *func_name(void) \
629 { \
630 static const SSL_METHOD func_name##_data= { \
631 version, \
632 tls1_new, \
633 tls1_clear, \
634 tls1_free, \
635 s_accept, \
636 s_connect, \
637 ssl3_read, \
638 ssl3_peek, \
639 ssl3_write, \
640 ssl3_shutdown, \
641 ssl3_renegotiate, \
642 ssl3_renegotiate_check, \
643 ssl3_get_message, \
644 ssl3_read_bytes, \
645 ssl3_write_bytes, \
646 ssl3_dispatch_alert, \
647 ssl3_ctrl, \
648 ssl3_ctx_ctrl, \
649 ssl3_get_cipher_by_char, \
650 ssl3_put_cipher_by_char, \
651 ssl3_pending, \
652 ssl3_num_ciphers, \
653 ssl3_get_cipher, \
654 s_get_meth, \
655 tls1_default_timeout, \
656 &TLSv1_enc_data, \
657 ssl_undefined_void_function, \
658 ssl3_callback_ctrl, \
659 ssl3_ctx_callback_ctrl, \
660 }; \
661 return &func_name##_data; \
662 }
663
664 #define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect, s_get_meth) \
665 const SSL_METHOD *func_name(void) \
666 { \
667 static const SSL_METHOD func_name##_data= { \
668 SSL3_VERSION, \
669 ssl3_new, \
670 ssl3_clear, \
671 ssl3_free, \
672 s_accept, \
673 s_connect, \
674 ssl3_read, \
675 ssl3_peek, \
676 ssl3_write, \
677 ssl3_shutdown, \
678 ssl3_renegotiate, \
679 ssl3_renegotiate_check, \
680 ssl3_get_message, \
681 ssl3_read_bytes, \
682 ssl3_write_bytes, \
683 ssl3_dispatch_alert, \
684 ssl3_ctrl, \
685 ssl3_ctx_ctrl, \
686 ssl3_get_cipher_by_char, \
687 ssl3_put_cipher_by_char, \
688 ssl3_pending, \
689 ssl3_num_ciphers, \
690 ssl3_get_cipher, \
691 s_get_meth, \
692 ssl3_default_timeout, \
693 &SSLv3_enc_data, \
694 ssl_undefined_void_function, \
695 ssl3_callback_ctrl, \
696 ssl3_ctx_callback_ctrl, \
697 }; \
698 return &func_name##_data; \
699 }
700
701 #define IMPLEMENT_ssl23_meth_func(func_name, s_accept, s_connect, s_get_meth) \
702 const SSL_METHOD *func_name(void) \
703 { \
704 static const SSL_METHOD func_name##_data= { \
705 TLS1_2_VERSION, \
706 tls1_new, \
707 tls1_clear, \
708 tls1_free, \
709 s_accept, \
710 s_connect, \
711 ssl23_read, \
712 ssl23_peek, \
713 ssl23_write, \
714 ssl_undefined_function, \
715 ssl_undefined_function, \
716 ssl_ok, \
717 ssl3_get_message, \
718 ssl3_read_bytes, \
719 ssl3_write_bytes, \
720 ssl3_dispatch_alert, \
721 ssl3_ctrl, \
722 ssl3_ctx_ctrl, \
723 ssl23_get_cipher_by_char, \
724 ssl23_put_cipher_by_char, \
725 ssl_undefined_const_function, \
726 ssl23_num_ciphers, \
727 ssl23_get_cipher, \
728 s_get_meth, \
729 ssl23_default_timeout, \
730 &ssl3_undef_enc_method, \
731 ssl_undefined_void_function, \
732 ssl3_callback_ctrl, \
733 ssl3_ctx_callback_ctrl, \
734 }; \
735 return &func_name##_data; \
736 }
737
738 #define IMPLEMENT_ssl2_meth_func(func_name, s_accept, s_connect, s_get_meth) \
739 const SSL_METHOD *func_name(void) \
740 { \
741 static const SSL_METHOD func_name##_data= { \
742 SSL2_VERSION, \
743 ssl2_new, /* local */ \
744 ssl2_clear, /* local */ \
745 ssl2_free, /* local */ \
746 s_accept, \
747 s_connect, \
748 ssl2_read, \
749 ssl2_peek, \
750 ssl2_write, \
751 ssl2_shutdown, \
752 ssl_ok, /* NULL - renegotiate */ \
753 ssl_ok, /* NULL - check renegotiate */ \
754 NULL, /* NULL - ssl_get_message */ \
755 NULL, /* NULL - ssl_get_record */ \
756 NULL, /* NULL - ssl_write_bytes */ \
757 NULL, /* NULL - dispatch_alert */ \
758 ssl2_ctrl, /* local */ \
759 ssl2_ctx_ctrl, /* local */ \
760 ssl2_get_cipher_by_char, \
761 ssl2_put_cipher_by_char, \
762 ssl2_pending, \
763 ssl2_num_ciphers, \
764 ssl2_get_cipher, \
765 s_get_meth, \
766 ssl2_default_timeout, \
767 &ssl3_undef_enc_method, \
768 ssl_undefined_void_function, \
769 ssl2_callback_ctrl, /* local */ \
770 ssl2_ctx_callback_ctrl, /* local */ \
771 }; \
772 return &func_name##_data; \
773 }
774
775 #define IMPLEMENT_dtls1_meth_func(func_name, s_accept, s_connect, s_get_meth) \
776 const SSL_METHOD *func_name(void) \
777 { \
778 static const SSL_METHOD func_name##_data= { \
779 DTLS1_VERSION, \
780 dtls1_new, \
781 dtls1_clear, \
782 dtls1_free, \
783 s_accept, \
784 s_connect, \
785 ssl3_read, \
786 ssl3_peek, \
787 ssl3_write, \
788 dtls1_shutdown, \
789 ssl3_renegotiate, \
790 ssl3_renegotiate_check, \
791 dtls1_get_message, \
792 dtls1_read_bytes, \
793 dtls1_write_app_data_bytes, \
794 dtls1_dispatch_alert, \
795 dtls1_ctrl, \
796 ssl3_ctx_ctrl, \
797 ssl3_get_cipher_by_char, \
798 ssl3_put_cipher_by_char, \
799 ssl3_pending, \
800 ssl3_num_ciphers, \
801 dtls1_get_cipher, \
802 s_get_meth, \
803 dtls1_default_timeout, \
804 &DTLSv1_enc_data, \
805 ssl_undefined_void_function, \
806 ssl3_callback_ctrl, \
807 ssl3_ctx_callback_ctrl, \
808 }; \
809 return &func_name##_data; \
810 }
811
812 void ssl_clear_cipher_ctx(SSL *s);
813 int ssl_clear_bad_session(SSL *s);
814 CERT *ssl_cert_new(void);
815 CERT *ssl_cert_dup(CERT *cert);
816 int ssl_cert_inst(CERT **o);
817 void ssl_cert_free(CERT *c);
818 SESS_CERT *ssl_sess_cert_new(void);
819 void ssl_sess_cert_free(SESS_CERT *sc);
820 int ssl_set_peer_cert_type(SESS_CERT *c, int type);
821 int ssl_get_new_session(SSL *s, int session);
822 int ssl_get_prev_session(SSL *s, unsigned char *session,int len, const unsigned char *limit);
823 int ssl_cipher_id_cmp(const SSL_CIPHER *a,const SSL_CIPHER *b);
824 DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER,
825 ssl_cipher_id);
826 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
827 const SSL_CIPHER * const *bp);
828 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
829 STACK_OF(SSL_CIPHER) **skp);
830 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
831 int (*put_cb)(const SSL_CIPHER *, unsigned char *));
832 STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth,
833 STACK_OF(SSL_CIPHER) **pref,
834 STACK_OF(SSL_CIPHER) **sorted,
835 const char *rule_str);
836 void ssl_update_cache(SSL *s, int mode);
837 int ssl_cipher_get_evp(const SSL_SESSION *s,const EVP_CIPHER **enc,
838 const EVP_MD **md,int *mac_pkey_type,int *mac_secret_size, SSL_COMP **comp);
839 int ssl_get_handshake_digest(int i,long *mask,const EVP_MD **md);
840 int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk);
841 int ssl_undefined_function(SSL *s);
842 int ssl_undefined_void_function(void);
843 int ssl_undefined_const_function(const SSL *s);
844 CERT_PKEY *ssl_get_server_send_pkey(const SSL *s);
845 X509 *ssl_get_server_send_cert(const SSL *);
846 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *c, const EVP_MD **pmd);
847 int ssl_cert_type(X509 *x,EVP_PKEY *pkey);
848 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher);
849 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
850 int ssl_verify_alarm_type(long type);
851 void ssl_load_ciphers(void);
852 int ssl_fill_hello_random(SSL *s, int server, unsigned char *field, int len);
853
854 int ssl2_enc_init(SSL *s, int client);
855 int ssl2_generate_key_material(SSL *s);
856 void ssl2_enc(SSL *s,int send_data);
857 void ssl2_mac(SSL *s,unsigned char *mac,int send_data);
858 const SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p);
859 int ssl2_put_cipher_by_char(const SSL_CIPHER *c,unsigned char *p);
860 int ssl2_part_read(SSL *s, unsigned long f, int i);
861 int ssl2_do_write(SSL *s);
862 int ssl2_set_certificate(SSL *s, int type, int len, const unsigned char *data);
863 void ssl2_return_error(SSL *s,int reason);
864 void ssl2_write_error(SSL *s);
865 int ssl2_num_ciphers(void);
866 const SSL_CIPHER *ssl2_get_cipher(unsigned int u);
867 int ssl2_new(SSL *s);
868 void ssl2_free(SSL *s);
869 int ssl2_accept(SSL *s);
870 int ssl2_connect(SSL *s);
871 int ssl2_read(SSL *s, void *buf, int len);
872 int ssl2_peek(SSL *s, void *buf, int len);
873 int ssl2_write(SSL *s, const void *buf, int len);
874 int ssl2_shutdown(SSL *s);
875 void ssl2_clear(SSL *s);
876 long ssl2_ctrl(SSL *s,int cmd, long larg, void *parg);
877 long ssl2_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg);
878 long ssl2_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
879 long ssl2_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)(void));
880 int ssl2_pending(const SSL *s);
881 long ssl2_default_timeout(void );
882
883 const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
884 int ssl3_put_cipher_by_char(const SSL_CIPHER *c,unsigned char *p);
885 void ssl3_init_finished_mac(SSL *s);
886 int ssl3_send_server_certificate(SSL *s);
887 int ssl3_send_newsession_ticket(SSL *s);
888 int ssl3_send_cert_status(SSL *s);
889 int ssl3_get_finished(SSL *s,int state_a,int state_b);
890 int ssl3_setup_key_block(SSL *s);
891 int ssl3_send_change_cipher_spec(SSL *s,int state_a,int state_b);
892 int ssl3_change_cipher_state(SSL *s,int which);
893 void ssl3_cleanup_key_block(SSL *s);
894 int ssl3_do_write(SSL *s,int type);
895 int ssl3_send_alert(SSL *s,int level, int desc);
896 int ssl3_generate_master_secret(SSL *s, unsigned char *out,
897 unsigned char *p, int len);
898 int ssl3_get_req_cert_type(SSL *s,unsigned char *p);
899 long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
900 int ssl3_send_finished(SSL *s, int a, int b, const char *sender,int slen);
901 int ssl3_num_ciphers(void);
902 const SSL_CIPHER *ssl3_get_cipher(unsigned int u);
903 int ssl3_renegotiate(SSL *ssl);
904 int ssl3_renegotiate_check(SSL *ssl);
905 int ssl3_dispatch_alert(SSL *s);
906 int ssl3_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
907 int ssl3_write_bytes(SSL *s, int type, const void *buf, int len);
908 int ssl3_final_finish_mac(SSL *s, const char *sender, int slen,unsigned char *p);
909 int ssl3_cert_verify_mac(SSL *s, int md_nid, unsigned char *p);
910 void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len);
911 int ssl3_enc(SSL *s, int send_data);
912 int n_ssl3_mac(SSL *ssl, unsigned char *md, int send_data);
913 void ssl3_free_digest_list(SSL *s);
914 unsigned long ssl3_output_cert_chain(SSL *s, X509 *x);
915 SSL_CIPHER *ssl3_choose_cipher(SSL *ssl,STACK_OF(SSL_CIPHER) *clnt,
916 STACK_OF(SSL_CIPHER) *srvr);
917 int ssl3_setup_buffers(SSL *s);
918 int ssl3_setup_read_buffer(SSL *s);
919 int ssl3_setup_write_buffer(SSL *s);
920 int ssl3_release_read_buffer(SSL *s);
921 int ssl3_release_write_buffer(SSL *s);
922 int ssl3_digest_cached_records(SSL *s);
923 int ssl3_new(SSL *s);
924 void ssl3_free(SSL *s);
925 int ssl3_accept(SSL *s);
926 int ssl3_connect(SSL *s);
927 int ssl3_read(SSL *s, void *buf, int len);
928 int ssl3_peek(SSL *s, void *buf, int len);
929 int ssl3_write(SSL *s, const void *buf, int len);
930 int ssl3_shutdown(SSL *s);
931 void ssl3_clear(SSL *s);
932 long ssl3_ctrl(SSL *s,int cmd, long larg, void *parg);
933 long ssl3_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg);
934 long ssl3_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
935 long ssl3_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)(void));
936 int ssl3_pending(const SSL *s);
937
938 void ssl3_record_sequence_update(unsigned char *seq);
939 int ssl3_do_change_cipher_spec(SSL *ssl);
940 long ssl3_default_timeout(void );
941
942 int ssl23_num_ciphers(void );
943 const SSL_CIPHER *ssl23_get_cipher(unsigned int u);
944 int ssl23_read(SSL *s, void *buf, int len);
945 int ssl23_peek(SSL *s, void *buf, int len);
946 int ssl23_write(SSL *s, const void *buf, int len);
947 int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
948 const SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p);
949 long ssl23_default_timeout(void );
950
951 long tls1_default_timeout(void);
952 int dtls1_do_write(SSL *s,int type);
953 int ssl3_read_n(SSL *s, int n, int max, int extend);
954 int dtls1_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
955 int ssl3_do_compress(SSL *ssl);
956 int ssl3_do_uncompress(SSL *ssl);
957 int ssl3_write_pending(SSL *s, int type, const unsigned char *buf,
958 unsigned int len);
959 unsigned char *dtls1_set_message_header(SSL *s,
960 unsigned char *p, unsigned char mt, unsigned long len,
961 unsigned long frag_off, unsigned long frag_len);
962
963 int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len);
964 int dtls1_write_bytes(SSL *s, int type, const void *buf, int len);
965
966 int dtls1_send_change_cipher_spec(SSL *s, int a, int b);
967 int dtls1_send_finished(SSL *s, int a, int b, const char *sender, int slen);
968 unsigned long dtls1_output_cert_chain(SSL *s, X509 *x);
969 int dtls1_read_failed(SSL *s, int code);
970 int dtls1_buffer_message(SSL *s, int ccs);
971 int dtls1_retransmit_message(SSL *s, unsigned short seq,
972 unsigned long frag_off, int *found);
973 int dtls1_get_queue_priority(unsigned short seq, int is_ccs);
974 int dtls1_retransmit_buffered_messages(SSL *s);
975 void dtls1_clear_record_buffer(SSL *s);
976 void dtls1_get_message_header(unsigned char *data, struct hm_header_st *msg_hdr);
977 void dtls1_get_ccs_header(unsigned char *data, struct ccs_header_st *ccs_hdr);
978 void dtls1_reset_seq_numbers(SSL *s, int rw);
979 long dtls1_default_timeout(void);
980 struct timeval* dtls1_get_timeout(SSL *s, struct timeval* timeleft);
981 int dtls1_check_timeout_num(SSL *s);
982 int dtls1_handle_timeout(SSL *s);
983 const SSL_CIPHER *dtls1_get_cipher(unsigned int u);
984 void dtls1_start_timer(SSL *s);
985 void dtls1_stop_timer(SSL *s);
986 int dtls1_is_timer_expired(SSL *s);
987 void dtls1_double_timeout(SSL *s);
988 int dtls1_send_newsession_ticket(SSL *s);
989 unsigned int dtls1_min_mtu(void);
990
991 /* some client-only functions */
992 int ssl3_client_hello(SSL *s);
993 int ssl3_get_server_hello(SSL *s);
994 int ssl3_get_certificate_request(SSL *s);
995 int ssl3_get_new_session_ticket(SSL *s);
996 int ssl3_get_cert_status(SSL *s);
997 int ssl3_get_server_done(SSL *s);
998 int ssl3_send_client_verify(SSL *s);
999 int ssl3_send_client_certificate(SSL *s);
1000 int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey);
1001 int ssl3_send_client_key_exchange(SSL *s);
1002 int ssl3_get_key_exchange(SSL *s);
1003 int ssl3_get_server_certificate(SSL *s);
1004 int ssl3_check_cert_and_algorithm(SSL *s);
1005 #ifndef OPENSSL_NO_TLSEXT
1006 int ssl3_check_finished(SSL *s);
1007 # ifndef OPENSSL_NO_NEXTPROTONEG
1008 int ssl3_send_next_proto(SSL *s);
1009 # endif
1010 #endif
1011
1012 int dtls1_client_hello(SSL *s);
1013 int dtls1_send_client_certificate(SSL *s);
1014 int dtls1_send_client_key_exchange(SSL *s);
1015 int dtls1_send_client_verify(SSL *s);
1016
1017 /* some server-only functions */
1018 int ssl3_get_client_hello(SSL *s);
1019 int ssl3_send_server_hello(SSL *s);
1020 int ssl3_send_hello_request(SSL *s);
1021 int ssl3_send_server_key_exchange(SSL *s);
1022 int ssl3_send_certificate_request(SSL *s);
1023 int ssl3_send_server_done(SSL *s);
1024 int ssl3_check_client_hello(SSL *s);
1025 int ssl3_get_client_certificate(SSL *s);
1026 int ssl3_get_client_key_exchange(SSL *s);
1027 int ssl3_get_cert_verify(SSL *s);
1028 #ifndef OPENSSL_NO_NEXTPROTONEG
1029 int ssl3_get_next_proto(SSL *s);
1030 #endif
1031
1032 int dtls1_send_hello_request(SSL *s);
1033 int dtls1_send_server_hello(SSL *s);
1034 int dtls1_send_server_certificate(SSL *s);
1035 int dtls1_send_server_key_exchange(SSL *s);
1036 int dtls1_send_certificate_request(SSL *s);
1037 int dtls1_send_server_done(SSL *s);
1038
1039
1040
1041 int ssl23_accept(SSL *s);
1042 int ssl23_connect(SSL *s);
1043 int ssl23_read_bytes(SSL *s, int n);
1044 int ssl23_write_bytes(SSL *s);
1045
1046 int tls1_new(SSL *s);
1047 void tls1_free(SSL *s);
1048 void tls1_clear(SSL *s);
1049 long tls1_ctrl(SSL *s,int cmd, long larg, void *parg);
1050 long tls1_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
1051
1052 int dtls1_new(SSL *s);
1053 int dtls1_accept(SSL *s);
1054 int dtls1_connect(SSL *s);
1055 void dtls1_free(SSL *s);
1056 void dtls1_clear(SSL *s);
1057 long dtls1_ctrl(SSL *s,int cmd, long larg, void *parg);
1058 int dtls1_shutdown(SSL *s);
1059
1060 long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
1061 int dtls1_get_record(SSL *s);
1062 int do_dtls1_write(SSL *s, int type, const unsigned char *buf,
1063 unsigned int len, int create_empty_fragement);
1064 int dtls1_dispatch_alert(SSL *s);
1065 int dtls1_enc(SSL *s, int snd);
1066
1067 int ssl_init_wbio_buffer(SSL *s, int push);
1068 void ssl_free_wbio_buffer(SSL *s);
1069
1070 int tls1_change_cipher_state(SSL *s, int which);
1071 int tls1_setup_key_block(SSL *s);
1072 int tls1_enc(SSL *s, int snd);
1073 int tls1_final_finish_mac(SSL *s,
1074 const char *str, int slen, unsigned char *p);
1075 int tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *p);
1076 int tls1_mac(SSL *ssl, unsigned char *md, int snd);
1077 int tls1_generate_master_secret(SSL *s, unsigned char *out,
1078 unsigned char *p, int len);
1079 int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1080 const char *label, size_t llen,
1081 const unsigned char *p, size_t plen, int use_context);
1082 int tls1_alert_code(int code);
1083 int ssl3_alert_code(int code);
1084 int ssl_ok(SSL *s);
1085
1086 #ifndef OPENSSL_NO_ECDH
1087 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s);
1088 #endif
1089
1090 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
1091
1092 #ifndef OPENSSL_NO_EC
1093 int tls1_ec_curve_id2nid(int curve_id);
1094 int tls1_ec_nid2curve_id(int nid);
1095 #endif /* OPENSSL_NO_EC */
1096
1097 #ifndef OPENSSL_NO_TLSEXT
1098 unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *p, unsigned char *limit);
1099 unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *p, unsigned char *limit);
1100 int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n, int *al);
1101 int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n, int *al);
1102 int ssl_prepare_clienthello_tlsext(SSL *s);
1103 int ssl_prepare_serverhello_tlsext(SSL *s);
1104 int ssl_check_clienthello_tlsext_early(SSL *s);
1105 int ssl_check_clienthello_tlsext_late(SSL *s);
1106 int ssl_check_serverhello_tlsext(SSL *s);
1107
1108 #ifndef OPENSSL_NO_HEARTBEATS
1109 int tls1_heartbeat(SSL *s);
1110 int dtls1_heartbeat(SSL *s);
1111 int tls1_process_heartbeat(SSL *s);
1112 int dtls1_process_heartbeat(SSL *s);
1113 #endif
1114
1115 #ifdef OPENSSL_NO_SHA256
1116 #define tlsext_tick_md EVP_sha1
1117 #else
1118 #define tlsext_tick_md EVP_sha256
1119 #endif
1120 int tls1_process_ticket(SSL *s, unsigned char *session_id, int len,
1121 const unsigned char *limit, SSL_SESSION **ret);
1122
1123 int tls12_get_sigandhash(unsigned char *p, const EVP_PKEY *pk,
1124 const EVP_MD *md);
1125 int tls12_get_sigid(const EVP_PKEY *pk);
1126 const EVP_MD *tls12_get_hash(unsigned char hash_alg);
1127
1128 #endif
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,
1132 int maxlen);
1133 int ssl_parse_serverhello_renegotiate_ext(SSL *s, unsigned char *d, int len,
1134 int *al);
1135 int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
1136 int maxlen);
1137 int ssl_parse_clienthello_renegotiate_ext(SSL *s, unsigned char *d, int len,
1138 int *al);
1139 long ssl_get_algorithm2(SSL *s);
1140 int tls1_process_sigalgs(SSL *s, const unsigned char *data, int dsize);
1141 int tls12_get_req_sig_algs(SSL *s, unsigned char *p);
1142
1143 int ssl_add_clienthello_use_srtp_ext(SSL *s, unsigned char *p, int *len, int maxlen);
1144 int ssl_parse_clienthello_use_srtp_ext(SSL *s, unsigned char *d, int len,int *al);
1145 int ssl_add_serverhello_use_srtp_ext(SSL *s, unsigned char *p, int *len, int maxlen);
1146 int ssl_parse_serverhello_use_srtp_ext(SSL *s, unsigned char *d, int len,int *al);
1147
1148 /* s3_cbc.c */
1149 void ssl3_cbc_copy_mac(unsigned char* out,
1150 const SSL3_RECORD *rec,
1151 unsigned md_size,unsigned orig_len);
1152 int ssl3_cbc_remove_padding(const SSL* s,
1153 SSL3_RECORD *rec,
1154 unsigned block_size,
1155 unsigned mac_size);
1156 int tls1_cbc_remove_padding(const SSL* s,
1157 SSL3_RECORD *rec,
1158 unsigned block_size,
1159 unsigned mac_size);
1160 char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx);
1161 void ssl3_cbc_digest_record(
1162 const EVP_MD_CTX *ctx,
1163 unsigned char* md_out,
1164 size_t* md_out_size,
1165 const unsigned char header[13],
1166 const unsigned char *data,
1167 size_t data_plus_mac_size,
1168 size_t data_plus_mac_plus_padding_size,
1169 const unsigned char *mac_secret,
1170 unsigned mac_secret_length,
1171 char is_sslv3);
1172
1173 void tls_fips_digest_extra(
1174 const EVP_CIPHER_CTX *cipher_ctx, EVP_MD_CTX *mac_ctx,
1175 const unsigned char *data, size_t data_len, size_t orig_len);
1176
1177 #endif