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 #include "record/record.h"
169 #include "statem/statem.h"
170 #include "packet_locl.h"
172 # ifdef OPENSSL_BUILD_SHLIBSSL
173 # undef OPENSSL_EXTERN
174 # define OPENSSL_EXTERN OPENSSL_EXPORT
179 # define c2l(c,l) (l = ((unsigned long)(*((c)++))) , \
180 l|=(((unsigned long)(*((c)++)))<< 8), \
181 l|=(((unsigned long)(*((c)++)))<<16), \
182 l|=(((unsigned long)(*((c)++)))<<24))
184 /* NOTE - c is not incremented as per c2l */
185 # define c2ln(c,l1,l2,n) { \
189 case 8: l2 =((unsigned long)(*(--(c))))<<24; \
190 case 7: l2|=((unsigned long)(*(--(c))))<<16; \
191 case 6: l2|=((unsigned long)(*(--(c))))<< 8; \
192 case 5: l2|=((unsigned long)(*(--(c)))); \
193 case 4: l1 =((unsigned long)(*(--(c))))<<24; \
194 case 3: l1|=((unsigned long)(*(--(c))))<<16; \
195 case 2: l1|=((unsigned long)(*(--(c))))<< 8; \
196 case 1: l1|=((unsigned long)(*(--(c)))); \
200 # define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \
201 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
202 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
203 *((c)++)=(unsigned char)(((l)>>24)&0xff))
205 # define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24, \
206 l|=((unsigned long)(*((c)++)))<<16, \
207 l|=((unsigned long)(*((c)++)))<< 8, \
208 l|=((unsigned long)(*((c)++))))
210 # define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24)&0xff), \
211 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
212 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
213 *((c)++)=(unsigned char)(((l) )&0xff))
215 # define l2n6(l,c) (*((c)++)=(unsigned char)(((l)>>40)&0xff), \
216 *((c)++)=(unsigned char)(((l)>>32)&0xff), \
217 *((c)++)=(unsigned char)(((l)>>24)&0xff), \
218 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
219 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
220 *((c)++)=(unsigned char)(((l) )&0xff))
222 # define l2n8(l,c) (*((c)++)=(unsigned char)(((l)>>56)&0xff), \
223 *((c)++)=(unsigned char)(((l)>>48)&0xff), \
224 *((c)++)=(unsigned char)(((l)>>40)&0xff), \
225 *((c)++)=(unsigned char)(((l)>>32)&0xff), \
226 *((c)++)=(unsigned char)(((l)>>24)&0xff), \
227 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
228 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
229 *((c)++)=(unsigned char)(((l) )&0xff))
231 # define n2l6(c,l) (l =((BN_ULLONG)(*((c)++)))<<40, \
232 l|=((BN_ULLONG)(*((c)++)))<<32, \
233 l|=((BN_ULLONG)(*((c)++)))<<24, \
234 l|=((BN_ULLONG)(*((c)++)))<<16, \
235 l|=((BN_ULLONG)(*((c)++)))<< 8, \
236 l|=((BN_ULLONG)(*((c)++))))
238 /* NOTE - c is not incremented as per l2c */
239 # define l2cn(l1,l2,c,n) { \
242 case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
243 case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
244 case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
245 case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \
246 case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
247 case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
248 case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
249 case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \
253 # define n2s(c,s) ((s=(((unsigned int)(c[0]))<< 8)| \
254 (((unsigned int)(c[1])) )),c+=2)
255 # define s2n(s,c) ((c[0]=(unsigned char)(((s)>> 8)&0xff), \
256 c[1]=(unsigned char)(((s) )&0xff)),c+=2)
258 # define n2l3(c,l) ((l =(((unsigned long)(c[0]))<<16)| \
259 (((unsigned long)(c[1]))<< 8)| \
260 (((unsigned long)(c[2])) )),c+=3)
262 # define l2n3(l,c) ((c[0]=(unsigned char)(((l)>>16)&0xff), \
263 c[1]=(unsigned char)(((l)>> 8)&0xff), \
264 c[2]=(unsigned char)(((l) )&0xff)),c+=3)
268 # define SSL_DECRYPT 0
269 # define SSL_ENCRYPT 1
271 # define TWO_BYTE_BIT 0x80
272 # define SEC_ESC_BIT 0x40
273 # define TWO_BYTE_MASK 0x7fff
274 # define THREE_BYTE_MASK 0x3fff
276 # define INC32(a) ((a)=((a)+1)&0xffffffffL)
277 # define DEC32(a) ((a)=((a)-1)&0xffffffffL)
278 # define MAX_MAC_SIZE 20 /* up from 16 for SSLv3 */
281 * Define the Bitmasks for SSL_CIPHER.algorithms.
282 * This bits are used packed as dense as possible. If new methods/ciphers
283 * etc will be added, the bits a likely to change, so this information
284 * is for internal library use only, even though SSL_CIPHER.algorithms
285 * can be publicly accessed.
286 * Use the according functions for cipher management instead.
288 * The bit mask handling in the selection and sorting scheme in
289 * ssl_create_cipher_list() has only limited capabilities, reflecting
290 * that the different entities within are mutually exclusive:
291 * ONLY ONE BIT PER MASK CAN BE SET AT A TIME.
294 /* Bits for algorithm_mkey (key exchange algorithm) */
295 /* RSA key exchange */
296 # define SSL_kRSA 0x00000001L
297 /* DH cert, RSA CA cert */
298 # define SSL_kDHr 0x00000002L
299 /* DH cert, DSA CA cert */
300 # define SSL_kDHd 0x00000004L
301 /* tmp DH key no DH cert */
302 # define SSL_kDHE 0x00000008L
304 # define SSL_kEDH SSL_kDHE
305 /* ECDH cert, RSA CA cert */
306 # define SSL_kECDHr 0x00000020L
307 /* ECDH cert, ECDSA CA cert */
308 # define SSL_kECDHe 0x00000040L
310 # define SSL_kECDHE 0x00000080L
312 # define SSL_kEECDH SSL_kECDHE
314 # define SSL_kPSK 0x00000100L
315 /* GOST key exchange */
316 # define SSL_kGOST 0x00000200L
318 # define SSL_kSRP 0x00000400L
320 # define SSL_kRSAPSK 0x00000800L
321 # define SSL_kECDHEPSK 0x00001000L
322 # define SSL_kDHEPSK 0x00002000L
326 #define SSL_PSK (SSL_kPSK | SSL_kRSAPSK | SSL_kECDHEPSK | SSL_kDHEPSK)
328 /* Bits for algorithm_auth (server authentication) */
330 # define SSL_aRSA 0x00000001L
332 # define SSL_aDSS 0x00000002L
333 /* no auth (i.e. use ADH or AECDH) */
334 # define SSL_aNULL 0x00000004L
335 /* Fixed DH auth (kDHd or kDHr) */
336 # define SSL_aDH 0x00000008L
337 /* Fixed ECDH auth (kECDHe or kECDHr) */
338 # define SSL_aECDH 0x00000010L
340 # define SSL_aECDSA 0x00000040L
342 # define SSL_aPSK 0x00000080L
343 /* GOST R 34.10-2001 signature auth */
344 # define SSL_aGOST01 0x00000200L
346 # define SSL_aSRP 0x00000400L
348 /* Bits for algorithm_enc (symmetric encryption) */
349 # define SSL_DES 0x00000001L
350 # define SSL_3DES 0x00000002L
351 # define SSL_RC4 0x00000004L
352 # define SSL_RC2 0x00000008L
353 # define SSL_IDEA 0x00000010L
354 # define SSL_eNULL 0x00000020L
355 # define SSL_AES128 0x00000040L
356 # define SSL_AES256 0x00000080L
357 # define SSL_CAMELLIA128 0x00000100L
358 # define SSL_CAMELLIA256 0x00000200L
359 # define SSL_eGOST2814789CNT 0x00000400L
360 # define SSL_SEED 0x00000800L
361 # define SSL_AES128GCM 0x00001000L
362 # define SSL_AES256GCM 0x00002000L
363 # define SSL_AES128CCM 0x00004000L
364 # define SSL_AES256CCM 0x00008000L
365 # define SSL_AES128CCM8 0x00010000L
366 # define SSL_AES256CCM8 0x00020000L
368 # define SSL_AES (SSL_AES128|SSL_AES256|SSL_AES128GCM|SSL_AES256GCM|SSL_AES128CCM|SSL_AES256CCM|SSL_AES128CCM8|SSL_AES256CCM8)
369 # define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256)
371 /* Bits for algorithm_mac (symmetric authentication) */
373 # define SSL_MD5 0x00000001L
374 # define SSL_SHA1 0x00000002L
375 # define SSL_GOST94 0x00000004L
376 # define SSL_GOST89MAC 0x00000008L
377 # define SSL_SHA256 0x00000010L
378 # define SSL_SHA384 0x00000020L
379 /* Not a real MAC, just an indication it is part of cipher */
380 # define SSL_AEAD 0x00000040L
382 /* Bits for algorithm_ssl (protocol version) */
383 # define SSL_SSLV3 0x00000002L
384 # define SSL_TLSV1 SSL_SSLV3/* for now */
385 # define SSL_TLSV1_2 0x00000004L
387 /* Bits for algorithm2 (handshake digests and other extra flags) */
389 # define SSL_HANDSHAKE_MAC_MD5 0x10
390 # define SSL_HANDSHAKE_MAC_SHA 0x20
391 # define SSL_HANDSHAKE_MAC_GOST94 0x40
392 # define SSL_HANDSHAKE_MAC_SHA256 0x80
393 # define SSL_HANDSHAKE_MAC_SHA384 0x100
394 # define SSL_HANDSHAKE_MAC_DEFAULT (SSL_HANDSHAKE_MAC_MD5 | SSL_HANDSHAKE_MAC_SHA)
397 * When adding new digest in the ssl_ciph.c and increment SSM_MD_NUM_IDX make
398 * sure to update this constant too
400 # define SSL_MAX_DIGEST 6
402 # define TLS1_PRF_DGST_SHIFT 10
403 # define TLS1_PRF_MD5 (SSL_HANDSHAKE_MAC_MD5 << TLS1_PRF_DGST_SHIFT)
404 # define TLS1_PRF_SHA1 (SSL_HANDSHAKE_MAC_SHA << TLS1_PRF_DGST_SHIFT)
405 # define TLS1_PRF_SHA256 (SSL_HANDSHAKE_MAC_SHA256 << TLS1_PRF_DGST_SHIFT)
406 # define TLS1_PRF_SHA384 (SSL_HANDSHAKE_MAC_SHA384 << TLS1_PRF_DGST_SHIFT)
407 # define TLS1_PRF_GOST94 (SSL_HANDSHAKE_MAC_GOST94 << TLS1_PRF_DGST_SHIFT)
408 # define TLS1_PRF (TLS1_PRF_MD5 | TLS1_PRF_SHA1)
411 * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also
412 * goes into algorithm2)
414 # define TLS1_STREAM_MAC 0x04
417 * Export and cipher strength information. For each cipher we have to decide
418 * whether it is exportable or not. This information is likely to change
419 * over time, since the export control rules are no static technical issue.
421 * Independent of the export flag the cipher strength is sorted into classes.
422 * SSL_EXP40 was denoting the 40bit US export limit of past times, which now
423 * is at 56bit (SSL_EXP56). If the exportable cipher class is going to change
424 * again (eg. to 64bit) the use of "SSL_EXP*" becomes blurred even more,
425 * since SSL_EXP64 could be similar to SSL_LOW.
426 * For this reason SSL_MICRO and SSL_MINI macros are included to widen the
427 * namespace of SSL_LOW-SSL_HIGH to lower values. As development of speed
428 * and ciphers goes, another extension to SSL_SUPER and/or SSL_ULTRA would
431 # define SSL_EXP_MASK 0x00000003L
432 # define SSL_STRONG_MASK 0x000001fcL
433 # define SSL_DEFAULT_MASK 0X00000200L
435 # define SSL_NOT_EXP 0x00000001L
436 # define SSL_EXPORT 0x00000002L
438 # define SSL_STRONG_NONE 0x00000004L
439 # define SSL_EXP40 0x00000008L
440 # define SSL_MICRO (SSL_EXP40)
441 # define SSL_EXP56 0x00000010L
442 # define SSL_MINI (SSL_EXP56)
443 # define SSL_LOW 0x00000020L
444 # define SSL_MEDIUM 0x00000040L
445 # define SSL_HIGH 0x00000080L
446 # define SSL_FIPS 0x00000100L
448 # define SSL_NOT_DEFAULT 0x00000200L
450 /* we have used 000003ff - 22 bits left to go */
453 * Macros to check the export status and cipher strength for export ciphers.
454 * Even though the macros for EXPORT and EXPORT40/56 have similar names,
455 * their meaning is different:
456 * *_EXPORT macros check the 'exportable' status.
457 * *_EXPORT40/56 macros are used to check whether a certain cipher strength
459 * Since the SSL_IS_EXPORT* and SSL_EXPORT* macros depend on the correct
460 * algorithm structure element to be passed (algorithms, algo_strength) and no
461 * typechecking can be done as they are all of type unsigned long, their
462 * direct usage is discouraged.
463 * Use the SSL_C_* macros instead.
465 # define SSL_IS_EXPORT(a) ((a)&SSL_EXPORT)
466 # define SSL_IS_EXPORT56(a) ((a)&SSL_EXP56)
467 # define SSL_IS_EXPORT40(a) ((a)&SSL_EXP40)
468 # define SSL_C_IS_EXPORT(c) SSL_IS_EXPORT((c)->algo_strength)
469 # define SSL_C_IS_EXPORT56(c) SSL_IS_EXPORT56((c)->algo_strength)
470 # define SSL_C_IS_EXPORT40(c) SSL_IS_EXPORT40((c)->algo_strength)
472 # define SSL_EXPORT_KEYLENGTH(a,s) (SSL_IS_EXPORT40(s) ? 5 : \
473 (a) == SSL_DES ? 8 : 7)
474 # define SSL_EXPORT_PKEYLENGTH(a) (SSL_IS_EXPORT40(a) ? 512 : 1024)
475 # define SSL_C_EXPORT_KEYLENGTH(c) SSL_EXPORT_KEYLENGTH((c)->algorithm_enc, \
477 # define SSL_C_EXPORT_PKEYLENGTH(c) SSL_EXPORT_PKEYLENGTH((c)->algo_strength)
479 /* Check if an SSL structure is using DTLS */
480 # define SSL_IS_DTLS(s) (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
481 /* See if we need explicit IV */
482 # define SSL_USE_EXPLICIT_IV(s) \
483 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV)
485 * See if we use signature algorithms extension and signature algorithm
488 # define SSL_USE_SIGALGS(s) \
489 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS)
491 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
492 * apply to others in future.
494 # define SSL_USE_TLS1_2_CIPHERS(s) \
495 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)
497 * Determine if a client can use TLS 1.2 ciphersuites: can't rely on method
498 * flags because it may not be set to correct version yet.
500 # define SSL_CLIENT_USE_TLS1_2_CIPHERS(s) \
501 ((SSL_IS_DTLS(s) && s->client_version <= DTLS1_2_VERSION) || \
502 (!SSL_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION))
504 # ifdef TLSEXT_TYPE_encrypt_then_mac
505 # define SSL_USE_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC)
507 # define SSL_USE_ETM(s) (0)
510 /* Mostly for SSLv3 */
511 # define SSL_PKEY_RSA_ENC 0
512 # define SSL_PKEY_RSA_SIGN 1
513 # define SSL_PKEY_DSA_SIGN 2
514 # define SSL_PKEY_DH_RSA 3
515 # define SSL_PKEY_DH_DSA 4
516 # define SSL_PKEY_ECC 5
517 # define SSL_PKEY_GOST01 7
518 # define SSL_PKEY_NUM 8
521 * SSL_kRSA <- RSA_ENC | (RSA_TMP & RSA_SIGN) |
522 * <- (EXPORT & (RSA_ENC | RSA_TMP) & RSA_SIGN)
523 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
524 * SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN
525 * SSL_aRSA <- RSA_ENC | RSA_SIGN
526 * SSL_aDSS <- DSA_SIGN
530 #define CERT_INVALID 0
531 #define CERT_PUBLIC_KEY 1
532 #define CERT_PRIVATE_KEY 2
536 /* CipherSuite length. SSLv3 and all TLS versions. */
537 #define TLS_CIPHER_LEN 2
538 /* used to hold info on the particular ciphers used */
539 struct ssl_cipher_st {
541 const char *name; /* text name */
542 unsigned long id; /* id, 4 bytes, first is version */
544 * changed in 0.9.9: these four used to be portions of a single value
547 unsigned long algorithm_mkey; /* key exchange algorithm */
548 unsigned long algorithm_auth; /* server authentication */
549 unsigned long algorithm_enc; /* symmetric encryption */
550 unsigned long algorithm_mac; /* symmetric authentication */
551 unsigned long algorithm_ssl; /* (major) protocol version */
552 unsigned long algo_strength; /* strength and export flags */
553 unsigned long algorithm2; /* Extra flags */
554 int strength_bits; /* Number of bits really used */
555 int alg_bits; /* Number of bits for algorithm */
558 /* Used to hold functions for SSLv2 or SSLv3/TLSv1 functions */
559 struct ssl_method_st {
561 int (*ssl_new) (SSL *s);
562 void (*ssl_clear) (SSL *s);
563 void (*ssl_free) (SSL *s);
564 int (*ssl_accept) (SSL *s);
565 int (*ssl_connect) (SSL *s);
566 int (*ssl_read) (SSL *s, void *buf, int len);
567 int (*ssl_peek) (SSL *s, void *buf, int len);
568 int (*ssl_write) (SSL *s, const void *buf, int len);
569 int (*ssl_shutdown) (SSL *s);
570 int (*ssl_renegotiate) (SSL *s);
571 int (*ssl_renegotiate_check) (SSL *s);
572 int (*ssl_read_bytes) (SSL *s, int type, int *recvd_type,
573 unsigned char *buf, int len, int peek);
574 int (*ssl_write_bytes) (SSL *s, int type, const void *buf_, int len);
575 int (*ssl_dispatch_alert) (SSL *s);
576 long (*ssl_ctrl) (SSL *s, int cmd, long larg, void *parg);
577 long (*ssl_ctx_ctrl) (SSL_CTX *ctx, int cmd, long larg, void *parg);
578 const SSL_CIPHER *(*get_cipher_by_char) (const unsigned char *ptr);
579 int (*put_cipher_by_char) (const SSL_CIPHER *cipher, unsigned char *ptr);
580 int (*ssl_pending) (const SSL *s);
581 int (*num_ciphers) (void);
582 const SSL_CIPHER *(*get_cipher) (unsigned ncipher);
583 const struct ssl_method_st *(*get_ssl_method) (int version);
584 long (*get_timeout) (void);
585 const struct ssl3_enc_method *ssl3_enc; /* Extra SSLv3/TLS stuff */
586 int (*ssl_version) (void);
587 long (*ssl_callback_ctrl) (SSL *s, int cb_id, void (*fp) (void));
588 long (*ssl_ctx_callback_ctrl) (SSL_CTX *s, int cb_id, void (*fp) (void));
592 * Lets make this into an ASN.1 type structure as follows
593 * SSL_SESSION_ID ::= SEQUENCE {
594 * version INTEGER, -- structure version number
595 * SSLversion INTEGER, -- SSL version number
596 * Cipher OCTET STRING, -- the 3 byte cipher ID
597 * Session_ID OCTET STRING, -- the Session ID
598 * Master_key OCTET STRING, -- the master key
599 * Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument
600 * Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time
601 * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds
602 * Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate
603 * Session_ID_context [ 4 ] EXPLICIT OCTET STRING, -- the Session ID context
604 * Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer'
605 * HostName [ 6 ] EXPLICIT OCTET STRING, -- optional HostName from servername TLS extension
606 * PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint
607 * PSK_identity [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity
608 * Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket
609 * Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only)
610 * Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method
611 * SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username
612 * flags [ 13 ] EXPLICIT INTEGER -- optional flags
614 * Look in ssl/ssl_asn1.c for more details
615 * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-).
617 struct ssl_session_st {
618 int ssl_version; /* what ssl version session info is being
620 int master_key_length;
621 unsigned char master_key[SSL_MAX_MASTER_KEY_LENGTH];
622 /* session_id - valid? */
623 unsigned int session_id_length;
624 unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
626 * this is used to determine whether the session is being reused in the
627 * appropriate context. It is up to the application to set this, via
630 unsigned int sid_ctx_length;
631 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
632 # ifndef OPENSSL_NO_PSK
633 char *psk_identity_hint;
637 * Used to indicate that session resumption is not allowed. Applications
638 * can also set this bit for a new session via not_resumable_session_cb
639 * to disable session caching and tickets.
642 /* This is the cert and type for the other end. */
645 /* Certificate chain of peer */
646 STACK_OF(X509) *peer_chain;
648 * when app_verify_callback accepts a session where the peer's
649 * certificate is not ok, we must remember the error for session reuse:
651 long verify_result; /* only for servers */
655 unsigned int compress_meth; /* Need to lookup the method */
656 const SSL_CIPHER *cipher;
657 unsigned long cipher_id; /* when ASN.1 loaded, this needs to be used
658 * to load the 'cipher' structure */
659 STACK_OF(SSL_CIPHER) *ciphers; /* shared ciphers? */
660 CRYPTO_EX_DATA ex_data; /* application specific data */
662 * These are used to make removal of session-ids more efficient and to
663 * implement a maximum cache size.
665 struct ssl_session_st *prev, *next;
666 char *tlsext_hostname;
667 # ifndef OPENSSL_NO_EC
668 size_t tlsext_ecpointformatlist_length;
669 unsigned char *tlsext_ecpointformatlist; /* peer's list */
670 size_t tlsext_ellipticcurvelist_length;
671 unsigned char *tlsext_ellipticcurvelist; /* peer's list */
672 # endif /* OPENSSL_NO_EC */
674 unsigned char *tlsext_tick; /* Session ticket */
675 size_t tlsext_ticklen; /* Session ticket length */
676 unsigned long tlsext_tick_lifetime_hint; /* Session lifetime hint in seconds */
677 # ifndef OPENSSL_NO_SRP
683 /* Extended master secret support */
684 # define SSL_SESS_FLAG_EXTMS 0x1
687 # ifndef OPENSSL_NO_SRP
689 typedef struct srp_ctx_st {
690 /* param for all the callbacks */
692 /* set client Hello login callback */
693 int (*TLS_ext_srp_username_callback) (SSL *, int *, void *);
694 /* set SRP N/g param callback for verification */
695 int (*SRP_verify_param_callback) (SSL *, void *);
696 /* set SRP client passwd callback */
697 char *(*SRP_give_srp_client_pwd_callback) (SSL *, void *);
699 BIGNUM *N, *g, *s, *B, *A;
703 unsigned long srp_Mask;
708 typedef struct ssl_comp_st SSL_COMP;
716 DECLARE_STACK_OF(SSL_COMP)
717 DECLARE_LHASH_OF(SSL_SESSION);
721 const SSL_METHOD *method;
722 STACK_OF(SSL_CIPHER) *cipher_list;
723 /* same as above but sorted for lookup */
724 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
725 struct x509_store_st /* X509_STORE */ *cert_store;
726 LHASH_OF(SSL_SESSION) *sessions;
728 * Most session-ids that will be cached, default is
729 * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited.
731 unsigned long session_cache_size;
732 struct ssl_session_st *session_cache_head;
733 struct ssl_session_st *session_cache_tail;
735 * This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT,
736 * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which
737 * means only SSL_accept which cache SSL_SESSIONS.
739 uint32_t session_cache_mode;
741 * If timeout is not 0, it is the default timeout value set when
742 * SSL_new() is called. This has been put in to make life easier to set
745 long session_timeout;
747 * If this callback is not null, it will be called each time a session id
748 * is added to the cache. If this function returns 1, it means that the
749 * callback will do a SSL_SESSION_free() when it has finished using it.
750 * Otherwise, on 0, it means the callback has finished with it. If
751 * remove_session_cb is not null, it will be called when a session-id is
752 * removed from the cache. After the call, OpenSSL will
753 * SSL_SESSION_free() it.
755 int (*new_session_cb) (struct ssl_st *ssl, SSL_SESSION *sess);
756 void (*remove_session_cb) (struct ssl_ctx_st *ctx, SSL_SESSION *sess);
757 SSL_SESSION *(*get_session_cb) (struct ssl_st *ssl,
758 unsigned char *data, int len, int *copy);
760 int sess_connect; /* SSL new conn - started */
761 int sess_connect_renegotiate; /* SSL reneg - requested */
762 int sess_connect_good; /* SSL new conne/reneg - finished */
763 int sess_accept; /* SSL new accept - started */
764 int sess_accept_renegotiate; /* SSL reneg - requested */
765 int sess_accept_good; /* SSL accept/reneg - finished */
766 int sess_miss; /* session lookup misses */
767 int sess_timeout; /* reuse attempt on timeouted session */
768 int sess_cache_full; /* session removed due to full cache */
769 int sess_hit; /* session reuse actually done */
770 int sess_cb_hit; /* session-id that was not in the cache was
771 * passed back via the callback. This
772 * indicates that the application is
773 * supplying session-id's from other
774 * processes - spooky :-) */
779 /* if defined, these override the X509_verify_cert() calls */
780 int (*app_verify_callback) (X509_STORE_CTX *, void *);
781 void *app_verify_arg;
783 * before OpenSSL 0.9.7, 'app_verify_arg' was ignored
784 * ('app_verify_callback' was called with just one argument)
787 /* Default password callback. */
788 pem_password_cb *default_passwd_callback;
790 /* Default password callback user data. */
791 void *default_passwd_callback_userdata;
793 /* get client cert callback */
794 int (*client_cert_cb) (SSL *ssl, X509 **x509, EVP_PKEY **pkey);
796 /* cookie generate callback */
797 int (*app_gen_cookie_cb) (SSL *ssl, unsigned char *cookie,
798 unsigned int *cookie_len);
800 /* verify cookie callback */
801 int (*app_verify_cookie_cb) (SSL *ssl, const unsigned char *cookie,
802 unsigned int cookie_len);
804 CRYPTO_EX_DATA ex_data;
806 const EVP_MD *md5; /* For SSLv3/TLSv1 'ssl3-md5' */
807 const EVP_MD *sha1; /* For SSLv3/TLSv1 'ssl3->sha1' */
809 STACK_OF(X509) *extra_certs;
810 STACK_OF(SSL_COMP) *comp_methods; /* stack of SSL_COMP, SSLv3/TLSv1 */
812 /* Default values used when no per-SSL value is defined follow */
814 /* used if SSL's info_callback is NULL */
815 void (*info_callback) (const SSL *ssl, int type, int val);
817 /* what we put in client cert requests */
818 STACK_OF(X509_NAME) *client_CA;
821 * Default values to use in SSL structures follow (these are copied by
829 struct cert_st /* CERT */ *cert;
832 /* callback that allows applications to peek at protocol messages */
833 void (*msg_callback) (int write_p, int version, int content_type,
834 const void *buf, size_t len, SSL *ssl, void *arg);
835 void *msg_callback_arg;
837 uint32_t verify_mode;
838 unsigned int sid_ctx_length;
839 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
840 /* called 'verify_callback' in the SSL */
841 int (*default_verify_callback) (int ok, X509_STORE_CTX *ctx);
843 /* Default generate session ID callback. */
844 GEN_SESSION_CB generate_session_id;
846 X509_VERIFY_PARAM *param;
851 * Maximum amount of data to send in one fragment. actual record size can
852 * be more than this due to padding and MAC overheads.
854 unsigned int max_send_fragment;
856 # ifndef OPENSSL_NO_ENGINE
858 * Engine to pass requests for client certs to
860 ENGINE *client_cert_engine;
863 /* TLS extensions servername callback */
864 int (*tlsext_servername_callback) (SSL *, int *, void *);
865 void *tlsext_servername_arg;
866 /* RFC 4507 session ticket keys */
867 unsigned char tlsext_tick_key_name[16];
868 unsigned char tlsext_tick_hmac_key[16];
869 unsigned char tlsext_tick_aes_key[16];
870 /* Callback to support customisation of ticket key setting */
871 int (*tlsext_ticket_key_cb) (SSL *ssl,
872 unsigned char *name, unsigned char *iv,
873 EVP_CIPHER_CTX *ectx,
874 HMAC_CTX *hctx, int enc);
876 /* certificate status request info */
877 /* Callback for status request */
878 int (*tlsext_status_cb) (SSL *ssl, void *arg);
879 void *tlsext_status_arg;
881 # ifndef OPENSSL_NO_PSK
882 unsigned int (*psk_client_callback) (SSL *ssl, const char *hint,
884 unsigned int max_identity_len,
886 unsigned int max_psk_len);
887 unsigned int (*psk_server_callback) (SSL *ssl, const char *identity,
889 unsigned int max_psk_len);
892 # ifndef OPENSSL_NO_SRP
893 SRP_CTX srp_ctx; /* ctx for SRP authentication */
896 # ifndef OPENSSL_NO_NEXTPROTONEG
897 /* Next protocol negotiation information */
898 /* (for experimental NPN extension). */
901 * For a server, this contains a callback function by which the set of
902 * advertised protocols can be provided.
904 int (*next_protos_advertised_cb) (SSL *s, const unsigned char **buf,
905 unsigned int *len, void *arg);
906 void *next_protos_advertised_cb_arg;
908 * For a client, this contains a callback function that selects the next
909 * protocol from the list provided by the server.
911 int (*next_proto_select_cb) (SSL *s, unsigned char **out,
912 unsigned char *outlen,
913 const unsigned char *in,
914 unsigned int inlen, void *arg);
915 void *next_proto_select_cb_arg;
919 * ALPN information (we are in the process of transitioning from NPN to
924 * For a server, this contains a callback function that allows the
925 * server to select the protocol for the connection.
926 * out: on successful return, this must point to the raw protocol
927 * name (without the length prefix).
928 * outlen: on successful return, this contains the length of |*out|.
929 * in: points to the client's list of supported protocols in
931 * inlen: the length of |in|.
933 int (*alpn_select_cb) (SSL *s,
934 const unsigned char **out,
935 unsigned char *outlen,
936 const unsigned char *in,
937 unsigned int inlen, void *arg);
938 void *alpn_select_cb_arg;
941 * For a client, this contains the list of supported protocols in wire
944 unsigned char *alpn_client_proto_list;
945 unsigned alpn_client_proto_list_len;
947 /* SRTP profiles we are willing to do from RFC 5764 */
948 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
950 * Callback for disabling session caching and ticket support on a session
951 * basis, depending on the chosen cipher.
953 int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure);
954 # ifndef OPENSSL_NO_EC
955 /* EC extension values inherited by SSL structure */
956 size_t tlsext_ecpointformatlist_length;
957 unsigned char *tlsext_ecpointformatlist;
958 size_t tlsext_ellipticcurvelist_length;
959 unsigned char *tlsext_ellipticcurvelist;
960 # endif /* OPENSSL_NO_EC */
966 * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION,
972 const SSL_METHOD *method;
974 * There are 2 BIO's even though they are normally both the same. This
975 * is so data can be read and written to different handlers
977 /* used by SSL_read */
979 /* used by SSL_write */
981 /* used during session-id reuse to concatenate messages */
984 * This holds a variable that indicates what we were doing when a 0 or -1
985 * is returned. This is needed for non-blocking IO so we know what
986 * request needs re-doing when in SSL_accept or SSL_connect
989 /* true when we are actually in SSL_accept() or SSL_connect() */
991 int (*handshake_func) (SSL *);
993 * Imagine that here's a boolean member "init" that is switched as soon
994 * as SSL_set_{accept/connect}_state is called for the first time, so
995 * that "state" and "handshake_func" are properly initialized. But as
996 * handshake_func is == 0 until then, we use this test instead of an
999 /* are we the server side? */
1002 * Generate a new session or reuse an old one.
1003 * NB: For servers, the 'new' session may actually be a previously
1004 * cached session or even the previous session unless
1005 * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set
1008 /* don't send shutdown packets */
1010 /* we have shut things down, 0x01 sent, 0x02 for received */
1015 BUF_MEM *init_buf; /* buffer used during init */
1016 void *init_msg; /* pointer to handshake message body, set by
1017 * ssl3_get_message() */
1018 int init_num; /* amount read/written */
1019 int init_off; /* amount read/written */
1021 struct ssl3_state_st *s3; /* SSLv3 variables */
1022 struct dtls1_state_st *d1; /* DTLSv1 variables */
1024 /* callback that allows applications to peek at protocol messages */
1025 void (*msg_callback) (int write_p, int version, int content_type,
1026 const void *buf, size_t len, SSL *ssl, void *arg);
1027 void *msg_callback_arg;
1028 int hit; /* reusing a previous session */
1029 X509_VERIFY_PARAM *param;
1031 STACK_OF(SSL_CIPHER) *cipher_list;
1032 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
1034 * These are the ones being used, the ones in SSL_SESSION are the ones to
1035 * be 'copied' into these ones
1038 EVP_CIPHER_CTX *enc_read_ctx; /* cryptographic state */
1039 EVP_MD_CTX *read_hash; /* used for mac generation */
1040 COMP_CTX *compress; /* compression */
1041 COMP_CTX *expand; /* uncompress */
1042 EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */
1043 EVP_MD_CTX *write_hash; /* used for mac generation */
1046 /* This is used to hold the server certificate used */
1047 struct cert_st /* CERT */ *cert;
1049 * the session_id_context is used to ensure sessions are only reused in
1050 * the appropriate context
1052 unsigned int sid_ctx_length;
1053 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
1054 /* This can also be in the session once a session is established */
1055 SSL_SESSION *session;
1056 /* Default generate session ID callback. */
1057 GEN_SESSION_CB generate_session_id;
1060 * 0 don't care about verify failure.
1061 * 1 fail if verify fails
1063 uint32_t verify_mode;
1064 /* fail if callback returns 0 */
1065 int (*verify_callback) (int ok, X509_STORE_CTX *ctx);
1066 /* optional informational callback */
1067 void (*info_callback) (const SSL *ssl, int type, int val);
1068 /* error bytes to be written */
1072 # ifndef OPENSSL_NO_PSK
1073 unsigned int (*psk_client_callback) (SSL *ssl, const char *hint,
1075 unsigned int max_identity_len,
1077 unsigned int max_psk_len);
1078 unsigned int (*psk_server_callback) (SSL *ssl, const char *identity,
1080 unsigned int max_psk_len);
1084 * set this flag to 1 and a sleep(1) is put into all SSL_read() and
1085 * SSL_write() calls, good for nbio debuging :-)
1088 /* extra application data */
1090 CRYPTO_EX_DATA ex_data;
1091 /* for server side, keep the list of CA_dn we can use */
1092 STACK_OF(X509_NAME) *client_CA;
1094 /* protocol behaviour */
1100 /* what was passed, used for SSLv3/TLS rollback check */
1102 unsigned int max_send_fragment;
1104 /* TLS extension debug callback */
1105 void (*tlsext_debug_cb) (SSL *s, int client_server, int type,
1106 unsigned char *data, int len, void *arg);
1107 void *tlsext_debug_arg;
1108 char *tlsext_hostname;
1110 * no further mod of servername
1111 * 0 : call the servername extension callback.
1112 * 1 : prepare 2, allow last ack just after in server callback.
1113 * 2 : don't call servername callback, no ack in server hello
1115 int servername_done;
1116 /* certificate status request info */
1117 /* Status type or -1 if no status type */
1118 int tlsext_status_type;
1119 /* Expect OCSP CertificateStatus message */
1120 int tlsext_status_expected;
1121 /* OCSP status request only */
1122 STACK_OF(OCSP_RESPID) *tlsext_ocsp_ids;
1123 X509_EXTENSIONS *tlsext_ocsp_exts;
1124 /* OCSP response received or to be sent */
1125 unsigned char *tlsext_ocsp_resp;
1126 int tlsext_ocsp_resplen;
1127 /* RFC4507 session ticket expected to be received or sent */
1128 int tlsext_ticket_expected;
1129 # ifndef OPENSSL_NO_EC
1130 size_t tlsext_ecpointformatlist_length;
1132 unsigned char *tlsext_ecpointformatlist;
1133 size_t tlsext_ellipticcurvelist_length;
1135 unsigned char *tlsext_ellipticcurvelist;
1136 # endif /* OPENSSL_NO_EC */
1137 /* TLS Session Ticket extension override */
1138 TLS_SESSION_TICKET_EXT *tlsext_session_ticket;
1139 /* TLS Session Ticket extension callback */
1140 tls_session_ticket_ext_cb_fn tls_session_ticket_ext_cb;
1141 void *tls_session_ticket_ext_cb_arg;
1142 /* TLS pre-shared secret session resumption */
1143 tls_session_secret_cb_fn tls_session_secret_cb;
1144 void *tls_session_secret_cb_arg;
1145 SSL_CTX *initial_ctx; /* initial ctx, used to store sessions */
1146 # ifndef OPENSSL_NO_NEXTPROTONEG
1148 * Next protocol negotiation. For the client, this is the protocol that
1149 * we sent in NextProtocol and is set when handling ServerHello
1150 * extensions. For a server, this is the client's selected_protocol from
1151 * NextProtocol and is set when handling the NextProtocol message, before
1152 * the Finished message.
1154 unsigned char *next_proto_negotiated;
1155 unsigned char next_proto_negotiated_len;
1157 # define session_ctx initial_ctx
1159 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
1160 /* What's been chosen */
1161 SRTP_PROTECTION_PROFILE *srtp_profile;
1163 * Is use of the Heartbeat extension negotiated?
1166 * 2: enabled, but not allowed to send Requests
1168 unsigned int tlsext_heartbeat;
1169 /* Indicates if a HeartbeatRequest is in flight */
1170 unsigned int tlsext_hb_pending;
1171 /* HeartbeatRequest sequence number */
1172 unsigned int tlsext_hb_seq;
1174 * For a client, this contains the list of supported protocols in wire
1177 unsigned char *alpn_client_proto_list;
1178 unsigned alpn_client_proto_list_len;
1181 * 1 if we are renegotiating.
1182 * 2 if we are a server and are inside a handshake
1183 * (i.e. not just sending a HelloRequest)
1186 # ifndef OPENSSL_NO_SRP
1187 /* ctx for SRP authentication */
1191 * Callback for disabling session caching and ticket support on a session
1192 * basis, depending on the chosen cipher.
1194 int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure);
1196 RECORD_LAYER rlayer;
1200 typedef struct ssl3_state_st {
1202 int read_mac_secret_size;
1203 unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
1204 int write_mac_secret_size;
1205 unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
1206 unsigned char server_random[SSL3_RANDOM_SIZE];
1207 unsigned char client_random[SSL3_RANDOM_SIZE];
1208 /* flags for countermeasure against known-IV weakness */
1209 int need_empty_fragments;
1210 int empty_fragment_done;
1211 /* The value of 'extra' when the buffers were initialized */
1213 /* used during startup, digest all incoming/outgoing packets */
1214 BIO *handshake_buffer;
1216 * When set of handshake digests is determined, buffer is hashed and
1217 * freed and MD_CTX-es for all required digests are stored in this array
1219 EVP_MD_CTX **handshake_dgst;
1221 * Set whenever an expected ChangeCipherSpec message is processed.
1222 * Unset when the peer's Finished message is received.
1223 * Unexpected ChangeCipherSpec messages trigger a fatal alert.
1225 int change_cipher_spec;
1229 * we allow one fatal and one warning alert to be outstanding, send close
1230 * alert via the warning alert
1233 unsigned char send_alert[2];
1235 * This flag is set when we should renegotiate ASAP, basically when there
1236 * is no more data in the read or write buffers
1239 int total_renegotiations;
1240 int num_renegotiations;
1241 int in_read_app_data;
1243 /* actually only needs to be 16+20 */
1244 unsigned char cert_verify_md[EVP_MAX_MD_SIZE * 2];
1245 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
1246 unsigned char finish_md[EVP_MAX_MD_SIZE * 2];
1248 unsigned char peer_finish_md[EVP_MAX_MD_SIZE * 2];
1249 int peer_finish_md_len;
1250 unsigned long message_size;
1252 /* used to hold the new cipher we are going to use */
1253 const SSL_CIPHER *new_cipher;
1254 # ifndef OPENSSL_NO_DH
1257 # ifndef OPENSSL_NO_EC
1258 EC_KEY *ecdh; /* holds short lived ECDH key */
1260 /* used for certificate requests */
1263 char ctype[SSL3_CT_NUMBER];
1264 STACK_OF(X509_NAME) *ca_names;
1266 int key_block_length;
1267 unsigned char *key_block;
1268 const EVP_CIPHER *new_sym_enc;
1269 const EVP_MD *new_hash;
1270 int new_mac_pkey_type;
1271 int new_mac_secret_size;
1272 # ifndef OPENSSL_NO_COMP
1273 const SSL_COMP *new_compression;
1275 char *new_compression;
1278 /* Raw values of the cipher list from a client */
1279 unsigned char *ciphers_raw;
1280 size_t ciphers_rawlen;
1281 /* Temporary storage for premaster secret */
1284 #ifndef OPENSSL_NO_PSK
1285 /* Temporary storage for PSK key */
1290 * signature algorithms peer reports: e.g. supported signature
1291 * algorithms extension for server or as part of a certificate
1292 * request for client.
1294 unsigned char *peer_sigalgs;
1295 /* Size of above array */
1296 size_t peer_sigalgslen;
1297 /* Digest peer uses for signing */
1298 const EVP_MD *peer_md;
1299 /* Array of digests used for signing */
1300 const EVP_MD *md[SSL_PKEY_NUM];
1302 * Set if corresponding CERT_PKEY can be used with current
1303 * SSL session: e.g. appropriate curve, signature algorithms etc.
1304 * If zero it can't be used at all.
1306 uint32_t valid_flags[SSL_PKEY_NUM];
1308 * For servers the following masks are for the key and auth algorithms
1309 * that are supported by the certs below. For clients they are masks of
1310 * *disabled* algorithms based on the current session.
1312 unsigned long mask_k;
1313 unsigned long mask_a;
1314 unsigned long export_mask_k;
1315 unsigned long export_mask_a;
1317 unsigned long mask_ssl;
1320 /* Connection binding to prevent renegotiation attacks */
1321 unsigned char previous_client_finished[EVP_MAX_MD_SIZE];
1322 unsigned char previous_client_finished_len;
1323 unsigned char previous_server_finished[EVP_MAX_MD_SIZE];
1324 unsigned char previous_server_finished_len;
1325 int send_connection_binding; /* TODOEKR */
1327 # ifndef OPENSSL_NO_NEXTPROTONEG
1329 * Set if we saw the Next Protocol Negotiation extension from our peer.
1331 int next_proto_neg_seen;
1335 * ALPN information (we are in the process of transitioning from NPN to
1340 * In a server these point to the selected ALPN protocol after the
1341 * ClientHello has been processed. In a client these contain the protocol
1342 * that the server selected once the ServerHello has been processed.
1344 unsigned char *alpn_selected;
1345 unsigned alpn_selected_len;
1347 # ifndef OPENSSL_NO_EC
1349 * This is set to true if we believe that this is a version of Safari
1350 * running on OS X 10.6 or newer. We wish to know this because Safari on
1351 * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support.
1353 char is_probably_safari;
1354 # endif /* !OPENSSL_NO_EC */
1356 /* For clients: peer temporary key */
1357 # ifndef OPENSSL_NO_RSA
1360 # ifndef OPENSSL_NO_DH
1363 # ifndef OPENSSL_NO_EC
1364 EC_KEY *peer_ecdh_tmp;
1370 /* DTLS structures */
1372 # ifndef OPENSSL_NO_SCTP
1373 # define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP"
1376 /* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */
1377 # define DTLS1_MAX_MTU_OVERHEAD 48
1380 * Flag used in message reuse to indicate the buffer contains the record
1381 * header as well as the the handshake message header.
1383 # define DTLS1_SKIP_RECORD_HEADER 2
1385 struct dtls1_retransmit_state {
1386 EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */
1387 EVP_MD_CTX *write_hash; /* used for mac generation */
1388 COMP_CTX *compress; /* compression */
1389 SSL_SESSION *session;
1390 unsigned short epoch;
1393 struct hm_header_st {
1395 unsigned long msg_len;
1397 unsigned long frag_off;
1398 unsigned long frag_len;
1399 unsigned int is_ccs;
1400 struct dtls1_retransmit_state saved_retransmit_state;
1403 struct dtls1_timeout_st {
1404 /* Number of read timeouts so far */
1405 unsigned int read_timeouts;
1406 /* Number of write timeouts so far */
1407 unsigned int write_timeouts;
1408 /* Number of alerts received so far */
1409 unsigned int num_alerts;
1412 typedef struct hm_fragment_st {
1413 struct hm_header_st msg_header;
1414 unsigned char *fragment;
1415 unsigned char *reassembly;
1418 typedef struct dtls1_state_st {
1419 unsigned char cookie[DTLS1_COOKIE_LENGTH];
1420 unsigned int cookie_len;
1421 unsigned int cookie_verified;
1423 /* handshake message numbers */
1424 unsigned short handshake_write_seq;
1425 unsigned short next_handshake_write_seq;
1426 unsigned short handshake_read_seq;
1428 /* Buffered handshake messages */
1429 pqueue buffered_messages;
1430 /* Buffered (sent) handshake records */
1431 pqueue sent_messages;
1433 unsigned int link_mtu; /* max on-the-wire DTLS packet size */
1434 unsigned int mtu; /* max DTLS packet size */
1435 struct hm_header_st w_msg_hdr;
1436 struct hm_header_st r_msg_hdr;
1437 struct dtls1_timeout_st timeout;
1439 * Indicates when the last handshake msg or heartbeat sent will timeout
1441 struct timeval next_timeout;
1442 /* Timeout duration */
1443 unsigned short timeout_duration;
1445 unsigned int retransmitting;
1446 # ifndef OPENSSL_NO_SCTP
1447 int shutdown_received;
1453 # ifndef OPENSSL_NO_EC
1455 * From ECC-TLS draft, used in encoding the curve type in ECParameters
1457 # define EXPLICIT_PRIME_CURVE_TYPE 1
1458 # define EXPLICIT_CHAR2_CURVE_TYPE 2
1459 # define NAMED_CURVE_TYPE 3
1460 # endif /* OPENSSL_NO_EC */
1462 typedef struct cert_pkey_st {
1464 EVP_PKEY *privatekey;
1465 /* Chain for this certificate */
1466 STACK_OF(X509) *chain;
1469 * serverinfo data for this certificate. The data is in TLS Extension
1470 * wire format, specifically it's a series of records like:
1471 * uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension)
1473 * uint8_t data[length];
1475 unsigned char *serverinfo;
1476 size_t serverinfo_length;
1478 /* Retrieve Suite B flags */
1479 # define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS)
1480 /* Uses to check strict mode: suite B modes are always strict */
1481 # define SSL_CERT_FLAGS_CHECK_TLS_STRICT \
1482 (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT)
1485 unsigned short ext_type;
1487 * Per-connection flags relating to this extension type: not used if
1488 * part of an SSL_CTX structure.
1491 custom_ext_add_cb add_cb;
1492 custom_ext_free_cb free_cb;
1494 custom_ext_parse_cb parse_cb;
1496 } custom_ext_method;
1498 /* ext_flags values */
1501 * Indicates an extension has been received. Used to check for unsolicited or
1502 * duplicate extensions.
1504 # define SSL_EXT_FLAG_RECEIVED 0x1
1506 * Indicates an extension has been sent: used to enable sending of
1507 * corresponding ServerHello extension.
1509 # define SSL_EXT_FLAG_SENT 0x2
1512 custom_ext_method *meths;
1514 } custom_ext_methods;
1516 typedef struct cert_st {
1517 /* Current active set */
1519 * ALWAYS points to an element of the pkeys array
1520 * Probably it would make more sense to store
1521 * an index, not a pointer.
1524 # ifndef OPENSSL_NO_RSA
1526 RSA *(*rsa_tmp_cb) (SSL *ssl, int is_export, int keysize);
1528 # ifndef OPENSSL_NO_DH
1530 DH *(*dh_tmp_cb) (SSL *ssl, int is_export, int keysize);
1533 # ifndef OPENSSL_NO_EC
1535 /* Callback for generating ephemeral ECDH keys */
1536 EC_KEY *(*ecdh_tmp_cb) (SSL *ssl, int is_export, int keysize);
1537 /* Select ECDH parameters automatically */
1540 /* Flags related to certificates */
1541 uint32_t cert_flags;
1542 CERT_PKEY pkeys[SSL_PKEY_NUM];
1544 * Certificate types (received or sent) in certificate request message.
1545 * On receive this is only set if number of certificate types exceeds
1548 unsigned char *ctypes;
1551 * suppported signature algorithms. When set on a client this is sent in
1552 * the client hello as the supported signature algorithms extension. For
1553 * servers it represents the signature algorithms we are willing to use.
1555 unsigned char *conf_sigalgs;
1556 /* Size of above array */
1557 size_t conf_sigalgslen;
1559 * Client authentication signature algorithms, if not set then uses
1560 * conf_sigalgs. On servers these will be the signature algorithms sent
1561 * to the client in a cerificate request for TLS 1.2. On a client this
1562 * represents the signature algortithms we are willing to use for client
1565 unsigned char *client_sigalgs;
1566 /* Size of above array */
1567 size_t client_sigalgslen;
1569 * Signature algorithms shared by client and server: cached because these
1570 * are used most often.
1572 TLS_SIGALGS *shared_sigalgs;
1573 size_t shared_sigalgslen;
1575 * Certificate setup callback: if set is called whenever a certificate
1576 * may be required (client or server). the callback can then examine any
1577 * appropriate parameters and setup any certificates required. This
1578 * allows advanced applications to select certificates on the fly: for
1579 * example based on supported signature algorithms or curves.
1581 int (*cert_cb) (SSL *ssl, void *arg);
1584 * Optional X509_STORE for chain building or certificate validation If
1585 * NULL the parent SSL_CTX store is used instead.
1587 X509_STORE *chain_store;
1588 X509_STORE *verify_store;
1589 /* Custom extension methods for server and client */
1590 custom_ext_methods cli_ext;
1591 custom_ext_methods srv_ext;
1592 /* Security callback */
1593 int (*sec_cb) (SSL *s, SSL_CTX *ctx, int op, int bits, int nid,
1594 void *other, void *ex);
1595 /* Security level */
1598 #ifndef OPENSSL_NO_PSK
1599 /* If not NULL psk identity hint to use for servers */
1600 char *psk_identity_hint;
1602 int references; /* >1 only if SSL_copy_session_id is used */
1605 /* Structure containing decoded values of signature algorithms extension */
1606 struct tls_sigalgs_st {
1607 /* NID of hash algorithm */
1609 /* NID of signature algorithm */
1611 /* Combined hash and signature NID */
1612 int signandhash_nid;
1613 /* Raw values used in extension */
1614 unsigned char rsign;
1615 unsigned char rhash;
1626 * #define ABORT_DEBUG
1629 * #define PKT_DEBUG 1
1635 * #define DES_OFB_DEBUG
1644 * #define IDEA_DEBUG
1647 # define FP_ICC (int (*)(const void *,const void *))
1650 * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit
1651 * of a mess of functions, but hell, think of it as an opaque structure :-)
1653 typedef struct ssl3_enc_method {
1654 int (*enc) (SSL *, int);
1655 int (*mac) (SSL *, unsigned char *, int);
1656 int (*setup_key_block) (SSL *);
1657 int (*generate_master_secret) (SSL *, unsigned char *, unsigned char *,
1659 int (*change_cipher_state) (SSL *, int);
1660 int (*final_finish_mac) (SSL *, const char *, int, unsigned char *);
1661 int finish_mac_length;
1662 int (*cert_verify_mac) (SSL *, int, unsigned char *);
1663 const char *client_finished_label;
1664 int client_finished_label_len;
1665 const char *server_finished_label;
1666 int server_finished_label_len;
1667 int (*alert_value) (int);
1668 int (*export_keying_material) (SSL *, unsigned char *, size_t,
1669 const char *, size_t,
1670 const unsigned char *, size_t,
1672 /* Various flags indicating protocol version requirements */
1674 /* Handshake header length */
1676 /* Set the handshake header */
1677 int (*set_handshake_header) (SSL *s, int type, unsigned long len);
1678 /* Write out handshake message */
1679 int (*do_write) (SSL *s);
1682 # define SSL_HM_HEADER_LENGTH(s) s->method->ssl3_enc->hhlen
1683 # define ssl_handshake_start(s) \
1684 (((unsigned char *)s->init_buf->data) + s->method->ssl3_enc->hhlen)
1685 # define ssl_set_handshake_header(s, htype, len) \
1686 s->method->ssl3_enc->set_handshake_header(s, htype, len)
1687 # define ssl_do_write(s) s->method->ssl3_enc->do_write(s)
1689 /* Values for enc_flags */
1691 /* Uses explicit IV for CBC mode */
1692 # define SSL_ENC_FLAG_EXPLICIT_IV 0x1
1693 /* Uses signature algorithms extension */
1694 # define SSL_ENC_FLAG_SIGALGS 0x2
1695 /* Uses SHA256 default PRF */
1696 # define SSL_ENC_FLAG_SHA256_PRF 0x4
1698 # define SSL_ENC_FLAG_DTLS 0x8
1700 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
1701 * apply to others in future.
1703 # define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10
1705 # ifndef OPENSSL_NO_COMP
1706 /* Used for holding the relevant compression methods loaded into SSL_CTX */
1707 typedef struct ssl3_comp_st {
1708 int comp_id; /* The identifier byte for this compression
1710 char *name; /* Text name used for the compression type */
1711 COMP_METHOD *method; /* The method :-) */
1715 extern SSL3_ENC_METHOD ssl3_undef_enc_method;
1716 OPENSSL_EXTERN const SSL_CIPHER ssl3_ciphers[];
1718 SSL_METHOD *ssl_bad_method(int ver);
1720 extern const SSL3_ENC_METHOD TLSv1_enc_data;
1721 extern const SSL3_ENC_METHOD TLSv1_1_enc_data;
1722 extern const SSL3_ENC_METHOD TLSv1_2_enc_data;
1723 extern const SSL3_ENC_METHOD SSLv3_enc_data;
1724 extern const SSL3_ENC_METHOD DTLSv1_enc_data;
1725 extern const SSL3_ENC_METHOD DTLSv1_2_enc_data;
1727 # define IMPLEMENT_tls_meth_func(version, func_name, s_accept, s_connect, \
1728 s_get_meth, enc_data) \
1729 const SSL_METHOD *func_name(void) \
1731 static const SSL_METHOD func_name##_data= { \
1743 ssl3_renegotiate_check, \
1746 ssl3_dispatch_alert, \
1749 ssl3_get_cipher_by_char, \
1750 ssl3_put_cipher_by_char, \
1755 tls1_default_timeout, \
1757 ssl_undefined_void_function, \
1758 ssl3_callback_ctrl, \
1759 ssl3_ctx_callback_ctrl, \
1761 return &func_name##_data; \
1764 # define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect, s_get_meth) \
1765 const SSL_METHOD *func_name(void) \
1767 static const SSL_METHOD func_name##_data= { \
1779 ssl3_renegotiate_check, \
1782 ssl3_dispatch_alert, \
1785 ssl3_get_cipher_by_char, \
1786 ssl3_put_cipher_by_char, \
1791 ssl3_default_timeout, \
1793 ssl_undefined_void_function, \
1794 ssl3_callback_ctrl, \
1795 ssl3_ctx_callback_ctrl, \
1797 return &func_name##_data; \
1800 # define IMPLEMENT_dtls1_meth_func(version, func_name, s_accept, s_connect, \
1801 s_get_meth, enc_data) \
1802 const SSL_METHOD *func_name(void) \
1804 static const SSL_METHOD func_name##_data= { \
1816 ssl3_renegotiate_check, \
1818 dtls1_write_app_data_bytes, \
1819 dtls1_dispatch_alert, \
1822 ssl3_get_cipher_by_char, \
1823 ssl3_put_cipher_by_char, \
1828 dtls1_default_timeout, \
1830 ssl_undefined_void_function, \
1831 ssl3_callback_ctrl, \
1832 ssl3_ctx_callback_ctrl, \
1834 return &func_name##_data; \
1837 struct openssl_ssl_test_functions {
1838 int (*p_ssl_init_wbio_buffer) (SSL *s, int push);
1839 int (*p_ssl3_setup_buffers) (SSL *s);
1840 int (*p_tls1_process_heartbeat) (SSL *s,
1841 unsigned char *p, unsigned int length);
1842 int (*p_dtls1_process_heartbeat) (SSL *s,
1843 unsigned char *p, unsigned int length);
1846 # ifndef OPENSSL_UNIT_TEST
1848 void ssl_clear_cipher_ctx(SSL *s);
1849 int ssl_clear_bad_session(SSL *s);
1850 __owur CERT *ssl_cert_new(void);
1851 __owur CERT *ssl_cert_dup(CERT *cert);
1852 void ssl_cert_clear_certs(CERT *c);
1853 void ssl_cert_free(CERT *c);
1854 __owur int ssl_get_new_session(SSL *s, int session);
1855 __owur int ssl_get_prev_session(SSL *s, const PACKET *ext,
1856 const PACKET *session_id);
1857 __owur SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket);
1858 __owur int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b);
1859 DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
1860 __owur int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
1861 const SSL_CIPHER *const *bp);
1862 __owur STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth,
1863 STACK_OF(SSL_CIPHER) **pref,
1864 STACK_OF(SSL_CIPHER) **sorted,
1865 const char *rule_str, CERT *c);
1866 void ssl_update_cache(SSL *s, int mode);
1867 __owur int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
1868 const EVP_MD **md, int *mac_pkey_type,
1869 int *mac_secret_size, SSL_COMP **comp, int use_etm);
1870 __owur int ssl_get_handshake_digest(int i, long *mask, const EVP_MD **md);
1871 __owur int ssl_cipher_get_cert_index(const SSL_CIPHER *c);
1872 __owur const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr);
1873 __owur int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
1874 __owur int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
1875 __owur int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
1876 __owur int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
1877 __owur int ssl_cert_select_current(CERT *c, X509 *x);
1878 __owur int ssl_cert_set_current(CERT *c, long arg);
1879 __owur X509 *ssl_cert_get0_next_certificate(CERT *c, int first);
1880 void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg),
1883 __owur int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk);
1884 __owur int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l);
1885 __owur int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags);
1886 __owur int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref);
1888 __owur int ssl_security(SSL *s, int op, int bits, int nid, void *other);
1889 __owur int ssl_ctx_security(SSL_CTX *ctx, int op, int bits, int nid, void *other);
1891 int ssl_undefined_function(SSL *s);
1892 __owur int ssl_undefined_void_function(void);
1893 __owur int ssl_undefined_const_function(const SSL *s);
1894 __owur CERT_PKEY *ssl_get_server_send_pkey(SSL *s);
1895 __owur int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
1896 size_t *serverinfo_length);
1897 __owur EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *c, const EVP_MD **pmd);
1898 __owur int ssl_cert_type(X509 *x, EVP_PKEY *pkey);
1899 void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher);
1900 __owur STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
1901 __owur int ssl_verify_alarm_type(long type);
1902 void ssl_load_ciphers(void);
1903 __owur int ssl_fill_hello_random(SSL *s, int server, unsigned char *field, int len);
1904 __owur int ssl_generate_master_secret(SSL *s, unsigned char *pms, size_t pmslen,
1907 __owur const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
1908 __owur int ssl3_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
1909 void ssl3_init_finished_mac(SSL *s);
1910 __owur int ssl3_setup_key_block(SSL *s);
1911 __owur int ssl3_change_cipher_state(SSL *s, int which);
1912 void ssl3_cleanup_key_block(SSL *s);
1913 __owur int ssl3_do_write(SSL *s, int type);
1914 int ssl3_send_alert(SSL *s, int level, int desc);
1915 __owur int ssl3_generate_master_secret(SSL *s, unsigned char *out,
1916 unsigned char *p, int len);
1917 __owur int ssl3_get_req_cert_type(SSL *s, unsigned char *p);
1918 __owur int ssl3_num_ciphers(void);
1919 __owur const SSL_CIPHER *ssl3_get_cipher(unsigned int u);
1920 int ssl3_renegotiate(SSL *ssl);
1921 int ssl3_renegotiate_check(SSL *ssl);
1922 __owur int ssl3_dispatch_alert(SSL *s);
1923 __owur int ssl3_final_finish_mac(SSL *s, const char *sender, int slen,
1925 __owur int ssl3_cert_verify_mac(SSL *s, int md_nid, unsigned char *p);
1926 void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len);
1927 void ssl3_free_digest_list(SSL *s);
1928 __owur unsigned long ssl3_output_cert_chain(SSL *s, CERT_PKEY *cpk);
1929 __owur SSL_CIPHER *ssl3_choose_cipher(SSL *ssl, STACK_OF(SSL_CIPHER) *clnt,
1930 STACK_OF(SSL_CIPHER) *srvr);
1931 __owur int ssl3_digest_cached_records(SSL *s, int keep);
1932 __owur int ssl3_new(SSL *s);
1933 void ssl3_free(SSL *s);
1934 __owur int ssl3_read(SSL *s, void *buf, int len);
1935 __owur int ssl3_peek(SSL *s, void *buf, int len);
1936 __owur int ssl3_write(SSL *s, const void *buf, int len);
1937 __owur int ssl3_shutdown(SSL *s);
1938 void ssl3_clear(SSL *s);
1939 __owur long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg);
1940 __owur long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg);
1941 __owur long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
1942 __owur long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void));
1944 __owur int ssl3_do_change_cipher_spec(SSL *ssl);
1945 __owur long ssl3_default_timeout(void);
1947 __owur int ssl3_set_handshake_header(SSL *s, int htype, unsigned long len);
1948 __owur int ssl3_handshake_write(SSL *s);
1950 __owur int ssl_allow_compression(SSL *s);
1952 __owur long tls1_default_timeout(void);
1953 __owur int dtls1_do_write(SSL *s, int type);
1954 void dtls1_set_message_header(SSL *s,
1955 unsigned char *p, unsigned char mt,
1957 unsigned long frag_off,
1958 unsigned long frag_len);
1960 __owur int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len);
1962 __owur int dtls1_read_failed(SSL *s, int code);
1963 __owur int dtls1_buffer_message(SSL *s, int ccs);
1964 __owur int dtls1_retransmit_message(SSL *s, unsigned short seq,
1965 unsigned long frag_off, int *found);
1966 __owur int dtls1_get_queue_priority(unsigned short seq, int is_ccs);
1967 int dtls1_retransmit_buffered_messages(SSL *s);
1968 void dtls1_clear_record_buffer(SSL *s);
1969 void dtls1_get_message_header(unsigned char *data,
1970 struct hm_header_st *msg_hdr);
1971 __owur long dtls1_default_timeout(void);
1972 __owur struct timeval *dtls1_get_timeout(SSL *s, struct timeval *timeleft);
1973 __owur int dtls1_check_timeout_num(SSL *s);
1974 __owur int dtls1_handle_timeout(SSL *s);
1975 __owur const SSL_CIPHER *dtls1_get_cipher(unsigned int u);
1976 void dtls1_start_timer(SSL *s);
1977 void dtls1_stop_timer(SSL *s);
1978 __owur int dtls1_is_timer_expired(SSL *s);
1979 void dtls1_double_timeout(SSL *s);
1980 __owur unsigned int dtls_raw_hello_verify_request(unsigned char *buf,
1981 unsigned char *cookie,
1982 unsigned char cookie_len);
1983 __owur int dtls1_send_newsession_ticket(SSL *s);
1984 __owur unsigned int dtls1_min_mtu(SSL *s);
1985 __owur unsigned int dtls1_link_min_mtu(void);
1986 void dtls1_hm_fragment_free(hm_fragment *frag);
1987 __owur int dtls1_query_mtu(SSL *s);
1989 __owur int tls1_new(SSL *s);
1990 void tls1_free(SSL *s);
1991 void tls1_clear(SSL *s);
1992 long tls1_ctrl(SSL *s, int cmd, long larg, void *parg);
1993 long tls1_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
1995 __owur int dtls1_new(SSL *s);
1996 void dtls1_free(SSL *s);
1997 void dtls1_clear(SSL *s);
1998 long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg);
1999 __owur int dtls1_shutdown(SSL *s);
2001 __owur int dtls1_dispatch_alert(SSL *s);
2003 __owur int ssl_init_wbio_buffer(SSL *s, int push);
2004 void ssl_free_wbio_buffer(SSL *s);
2006 __owur int tls1_change_cipher_state(SSL *s, int which);
2007 __owur int tls1_setup_key_block(SSL *s);
2008 __owur int tls1_final_finish_mac(SSL *s,
2009 const char *str, int slen, unsigned char *p);
2010 __owur int tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *p);
2011 __owur int tls1_generate_master_secret(SSL *s, unsigned char *out,
2012 unsigned char *p, int len);
2013 __owur int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,
2014 const char *label, size_t llen,
2015 const unsigned char *p, size_t plen,
2017 __owur int tls1_alert_code(int code);
2018 __owur int ssl3_alert_code(int code);
2019 __owur int ssl_ok(SSL *s);
2021 # ifndef OPENSSL_NO_EC
2022 __owur int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s);
2025 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
2027 # ifndef OPENSSL_NO_EC
2028 __owur int tls1_ec_curve_id2nid(int curve_id);
2029 __owur int tls1_ec_nid2curve_id(int nid);
2030 __owur int tls1_check_curve(SSL *s, const unsigned char *p, size_t len);
2031 __owur int tls1_shared_curve(SSL *s, int nmatch);
2032 __owur int tls1_set_curves(unsigned char **pext, size_t *pextlen,
2033 int *curves, size_t ncurves);
2034 __owur int tls1_set_curves_list(unsigned char **pext, size_t *pextlen,
2036 __owur int tls1_check_ec_tmp_key(SSL *s, unsigned long id);
2037 # endif /* OPENSSL_NO_EC */
2039 __owur int tls1_shared_list(SSL *s,
2040 const unsigned char *l1, size_t l1len,
2041 const unsigned char *l2, size_t l2len, int nmatch);
2042 __owur unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *buf,
2043 unsigned char *limit, int *al);
2044 __owur unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *buf,
2045 unsigned char *limit, int *al);
2046 __owur int ssl_parse_clienthello_tlsext(SSL *s, PACKET *pkt);
2047 __owur int tls1_set_server_sigalgs(SSL *s);
2048 __owur int ssl_check_clienthello_tlsext_late(SSL *s);
2049 __owur int ssl_parse_serverhello_tlsext(SSL *s, PACKET *pkt);
2050 __owur int ssl_prepare_clienthello_tlsext(SSL *s);
2051 __owur int ssl_prepare_serverhello_tlsext(SSL *s);
2053 # ifndef OPENSSL_NO_HEARTBEATS
2054 __owur int tls1_heartbeat(SSL *s);
2055 __owur int dtls1_heartbeat(SSL *s);
2056 __owur int tls1_process_heartbeat(SSL *s, unsigned char *p, unsigned int length);
2057 __owur int dtls1_process_heartbeat(SSL *s, unsigned char *p, unsigned int length);
2060 __owur int tls1_process_ticket(SSL *s, const PACKET *ext,
2061 const PACKET *session_id, SSL_SESSION **ret);
2063 __owur int tls12_get_sigandhash(unsigned char *p, const EVP_PKEY *pk,
2065 __owur int tls12_get_sigid(const EVP_PKEY *pk);
2066 __owur const EVP_MD *tls12_get_hash(unsigned char hash_alg);
2067 void ssl_set_sig_mask(unsigned long *pmask_a, SSL *s, int op);
2069 __owur int tls1_set_sigalgs_list(CERT *c, const char *str, int client);
2070 __owur int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen, int client);
2071 int tls1_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain,
2073 void tls1_set_cert_validity(SSL *s);
2075 # ifndef OPENSSL_NO_DH
2076 __owur DH *ssl_get_auto_dh(SSL *s);
2079 __owur int ssl_security_cert(SSL *s, SSL_CTX *ctx, X509 *x, int vfy, int is_ee);
2080 __owur int ssl_security_cert_chain(SSL *s, STACK_OF(X509) *sk, X509 *ex, int vfy);
2082 __owur EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md);
2083 void ssl_clear_hash_ctx(EVP_MD_CTX **hash);
2084 __owur int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
2086 __owur int ssl_parse_serverhello_renegotiate_ext(SSL *s, PACKET *pkt,
2088 __owur int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
2090 __owur int ssl_parse_clienthello_renegotiate_ext(SSL *s, PACKET *pkt, int *al);
2091 __owur long ssl_get_algorithm2(SSL *s);
2092 __owur size_t tls12_copy_sigalgs(SSL *s, unsigned char *out,
2093 const unsigned char *psig, size_t psiglen);
2094 __owur int tls1_save_sigalgs(SSL *s, const unsigned char *data, int dsize);
2095 __owur int tls1_process_sigalgs(SSL *s);
2096 __owur size_t tls12_get_psigalgs(SSL *s, const unsigned char **psigs);
2097 __owur int tls12_check_peer_sigalg(const EVP_MD **pmd, SSL *s,
2098 const unsigned char *sig, EVP_PKEY *pkey);
2099 void ssl_set_client_disabled(SSL *s);
2100 __owur int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c, int op);
2102 __owur int ssl_add_clienthello_use_srtp_ext(SSL *s, unsigned char *p, int *len,
2104 __owur int ssl_parse_clienthello_use_srtp_ext(SSL *s, PACKET *pkt, int *al);
2105 __owur int ssl_add_serverhello_use_srtp_ext(SSL *s, unsigned char *p, int *len,
2107 __owur int ssl_parse_serverhello_use_srtp_ext(SSL *s, PACKET *pkt, int *al);
2109 __owur int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen);
2112 __owur char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx);
2113 void ssl3_cbc_digest_record(const EVP_MD_CTX *ctx,
2114 unsigned char *md_out,
2115 size_t *md_out_size,
2116 const unsigned char header[13],
2117 const unsigned char *data,
2118 size_t data_plus_mac_size,
2119 size_t data_plus_mac_plus_padding_size,
2120 const unsigned char *mac_secret,
2121 unsigned mac_secret_length, char is_sslv3);
2123 void tls_fips_digest_extra(const EVP_CIPHER_CTX *cipher_ctx,
2124 EVP_MD_CTX *mac_ctx, const unsigned char *data,
2125 size_t data_len, size_t orig_len);
2127 __owur int srp_generate_server_master_secret(SSL *s);
2128 __owur int srp_generate_client_master_secret(SSL *s);
2129 __owur int srp_verify_server_param(SSL *s, int *al);
2133 void custom_ext_init(custom_ext_methods *meths);
2135 __owur int custom_ext_parse(SSL *s, int server,
2136 unsigned int ext_type,
2137 const unsigned char *ext_data, size_t ext_size, int *al);
2138 __owur int custom_ext_add(SSL *s, int server,
2139 unsigned char **pret, unsigned char *limit, int *al);
2141 __owur int custom_exts_copy(custom_ext_methods *dst, const custom_ext_methods *src);
2142 void custom_exts_free(custom_ext_methods *exts);
2146 # define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer
2147 # define ssl3_setup_buffers SSL_test_functions()->p_ssl3_setup_buffers
2148 # define tls1_process_heartbeat SSL_test_functions()->p_tls1_process_heartbeat
2149 # define dtls1_process_heartbeat SSL_test_functions()->p_dtls1_process_heartbeat