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/async.h>
167 # include <openssl/symhacks.h>
169 #include "record/record.h"
170 #include "statem/statem.h"
171 #include "packet_locl.h"
173 # ifdef OPENSSL_BUILD_SHLIBSSL
174 # undef OPENSSL_EXTERN
175 # define OPENSSL_EXTERN OPENSSL_EXPORT
180 # define c2l(c,l) (l = ((unsigned long)(*((c)++))) , \
181 l|=(((unsigned long)(*((c)++)))<< 8), \
182 l|=(((unsigned long)(*((c)++)))<<16), \
183 l|=(((unsigned long)(*((c)++)))<<24))
185 /* NOTE - c is not incremented as per c2l */
186 # define c2ln(c,l1,l2,n) { \
190 case 8: l2 =((unsigned long)(*(--(c))))<<24; \
191 case 7: l2|=((unsigned long)(*(--(c))))<<16; \
192 case 6: l2|=((unsigned long)(*(--(c))))<< 8; \
193 case 5: l2|=((unsigned long)(*(--(c)))); \
194 case 4: l1 =((unsigned long)(*(--(c))))<<24; \
195 case 3: l1|=((unsigned long)(*(--(c))))<<16; \
196 case 2: l1|=((unsigned long)(*(--(c))))<< 8; \
197 case 1: l1|=((unsigned long)(*(--(c)))); \
201 # define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \
202 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
203 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
204 *((c)++)=(unsigned char)(((l)>>24)&0xff))
206 # define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24, \
207 l|=((unsigned long)(*((c)++)))<<16, \
208 l|=((unsigned long)(*((c)++)))<< 8, \
209 l|=((unsigned long)(*((c)++))))
211 # define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24)&0xff), \
212 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
213 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
214 *((c)++)=(unsigned char)(((l) )&0xff))
216 # define l2n6(l,c) (*((c)++)=(unsigned char)(((l)>>40)&0xff), \
217 *((c)++)=(unsigned char)(((l)>>32)&0xff), \
218 *((c)++)=(unsigned char)(((l)>>24)&0xff), \
219 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
220 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
221 *((c)++)=(unsigned char)(((l) )&0xff))
223 # define l2n8(l,c) (*((c)++)=(unsigned char)(((l)>>56)&0xff), \
224 *((c)++)=(unsigned char)(((l)>>48)&0xff), \
225 *((c)++)=(unsigned char)(((l)>>40)&0xff), \
226 *((c)++)=(unsigned char)(((l)>>32)&0xff), \
227 *((c)++)=(unsigned char)(((l)>>24)&0xff), \
228 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
229 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
230 *((c)++)=(unsigned char)(((l) )&0xff))
232 # define n2l6(c,l) (l =((BN_ULLONG)(*((c)++)))<<40, \
233 l|=((BN_ULLONG)(*((c)++)))<<32, \
234 l|=((BN_ULLONG)(*((c)++)))<<24, \
235 l|=((BN_ULLONG)(*((c)++)))<<16, \
236 l|=((BN_ULLONG)(*((c)++)))<< 8, \
237 l|=((BN_ULLONG)(*((c)++))))
239 /* NOTE - c is not incremented as per l2c */
240 # define l2cn(l1,l2,c,n) { \
243 case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
244 case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
245 case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
246 case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \
247 case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
248 case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
249 case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
250 case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \
254 # define n2s(c,s) ((s=(((unsigned int)(c[0]))<< 8)| \
255 (((unsigned int)(c[1])) )),c+=2)
256 # define s2n(s,c) ((c[0]=(unsigned char)(((s)>> 8)&0xff), \
257 c[1]=(unsigned char)(((s) )&0xff)),c+=2)
259 # define n2l3(c,l) ((l =(((unsigned long)(c[0]))<<16)| \
260 (((unsigned long)(c[1]))<< 8)| \
261 (((unsigned long)(c[2])) )),c+=3)
263 # define l2n3(l,c) ((c[0]=(unsigned char)(((l)>>16)&0xff), \
264 c[1]=(unsigned char)(((l)>> 8)&0xff), \
265 c[2]=(unsigned char)(((l) )&0xff)),c+=3)
269 # define SSL_DECRYPT 0
270 # define SSL_ENCRYPT 1
272 # define TWO_BYTE_BIT 0x80
273 # define SEC_ESC_BIT 0x40
274 # define TWO_BYTE_MASK 0x7fff
275 # define THREE_BYTE_MASK 0x3fff
277 # define INC32(a) ((a)=((a)+1)&0xffffffffL)
278 # define DEC32(a) ((a)=((a)-1)&0xffffffffL)
279 # define MAX_MAC_SIZE 20 /* up from 16 for SSLv3 */
282 * Define the Bitmasks for SSL_CIPHER.algorithms.
283 * This bits are used packed as dense as possible. If new methods/ciphers
284 * etc will be added, the bits a likely to change, so this information
285 * is for internal library use only, even though SSL_CIPHER.algorithms
286 * can be publicly accessed.
287 * Use the according functions for cipher management instead.
289 * The bit mask handling in the selection and sorting scheme in
290 * ssl_create_cipher_list() has only limited capabilities, reflecting
291 * that the different entities within are mutually exclusive:
292 * ONLY ONE BIT PER MASK CAN BE SET AT A TIME.
295 /* Bits for algorithm_mkey (key exchange algorithm) */
296 /* RSA key exchange */
297 # define SSL_kRSA 0x00000001U
298 /* tmp DH key no DH cert */
299 # define SSL_kDHE 0x00000002U
301 # define SSL_kEDH SSL_kDHE
302 /* ECDH cert, RSA CA cert */
303 # define SSL_kECDHr 0x00000004U
304 /* ECDH cert, ECDSA CA cert */
305 # define SSL_kECDHe 0x00000008U
307 # define SSL_kECDHE 0x00000010U
309 # define SSL_kEECDH SSL_kECDHE
311 # define SSL_kPSK 0x00000020U
312 /* GOST key exchange */
313 # define SSL_kGOST 0x00000040U
315 # define SSL_kSRP 0x00000080U
317 # define SSL_kRSAPSK 0x00000100U
318 # define SSL_kECDHEPSK 0x00000200U
319 # define SSL_kDHEPSK 0x00000400U
323 #define SSL_PSK (SSL_kPSK | SSL_kRSAPSK | SSL_kECDHEPSK | SSL_kDHEPSK)
325 /* Bits for algorithm_auth (server authentication) */
327 # define SSL_aRSA 0x00000001U
329 # define SSL_aDSS 0x00000002U
330 /* no auth (i.e. use ADH or AECDH) */
331 # define SSL_aNULL 0x00000004U
332 /* Fixed ECDH auth (kECDHe or kECDHr) */
333 # define SSL_aECDH 0x00000008U
335 # define SSL_aECDSA 0x00000010U
337 # define SSL_aPSK 0x00000020U
338 /* GOST R 34.10-2001 signature auth */
339 # define SSL_aGOST01 0x00000040U
341 # define SSL_aSRP 0x00000080U
342 /* GOST R 34.10-2012 signature auth */
343 # define SSL_aGOST12 0x00000100U
345 /* Bits for algorithm_enc (symmetric encryption) */
346 # define SSL_DES 0x00000001U
347 # define SSL_3DES 0x00000002U
348 # define SSL_RC4 0x00000004U
349 # define SSL_RC2 0x00000008U
350 # define SSL_IDEA 0x00000010U
351 # define SSL_eNULL 0x00000020U
352 # define SSL_AES128 0x00000040U
353 # define SSL_AES256 0x00000080U
354 # define SSL_CAMELLIA128 0x00000100U
355 # define SSL_CAMELLIA256 0x00000200U
356 # define SSL_eGOST2814789CNT 0x00000400U
357 # define SSL_SEED 0x00000800U
358 # define SSL_AES128GCM 0x00001000U
359 # define SSL_AES256GCM 0x00002000U
360 # define SSL_AES128CCM 0x00004000U
361 # define SSL_AES256CCM 0x00008000U
362 # define SSL_AES128CCM8 0x00010000U
363 # define SSL_AES256CCM8 0x00020000U
364 # define SSL_eGOST2814789CNT12 0x00040000U
365 # define SSL_CHACHA20POLY1305 0x00080000U
367 # define SSL_AES (SSL_AES128|SSL_AES256|SSL_AES128GCM|SSL_AES256GCM|SSL_AES128CCM|SSL_AES256CCM|SSL_AES128CCM8|SSL_AES256CCM8)
368 # define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256)
370 /* Bits for algorithm_mac (symmetric authentication) */
372 # define SSL_MD5 0x00000001U
373 # define SSL_SHA1 0x00000002U
374 # define SSL_GOST94 0x00000004U
375 # define SSL_GOST89MAC 0x00000008U
376 # define SSL_SHA256 0x00000010U
377 # define SSL_SHA384 0x00000020U
378 /* Not a real MAC, just an indication it is part of cipher */
379 # define SSL_AEAD 0x00000040U
380 # define SSL_GOST12_256 0x00000080U
381 # define SSL_GOST89MAC12 0x00000100U
382 # define SSL_GOST12_512 0x00000200U
384 /* Bits for algorithm_ssl (protocol version) */
385 # define SSL_SSLV3 0x00000002U
386 # define SSL_TLSV1 0x00000004U
387 # define SSL_TLSV1_2 0x00000008U
390 * When adding new digest in the ssl_ciph.c and increment SSL_MD_NUM_IDX make
391 * sure to update this constant too
394 # define SSL_MD_MD5_IDX 0
395 # define SSL_MD_SHA1_IDX 1
396 # define SSL_MD_GOST94_IDX 2
397 # define SSL_MD_GOST89MAC_IDX 3
398 # define SSL_MD_SHA256_IDX 4
399 # define SSL_MD_SHA384_IDX 5
400 # define SSL_MD_GOST12_256_IDX 6
401 # define SSL_MD_GOST89MAC12_IDX 7
402 # define SSL_MD_GOST12_512_IDX 8
403 # define SSL_MD_MD5_SHA1_IDX 9
404 # define SSL_MD_SHA224_IDX 10
405 # define SSL_MD_SHA512_IDX 11
406 # define SSL_MAX_DIGEST 12
408 /* Bits for algorithm2 (handshake digests and other extra flags) */
410 /* Bits 0-7 are handshake MAC */
411 # define SSL_HANDSHAKE_MAC_MASK 0xFF
412 # define SSL_HANDSHAKE_MAC_MD5_SHA1 SSL_MD_MD5_SHA1_IDX
413 # define SSL_HANDSHAKE_MAC_SHA256 SSL_MD_SHA256_IDX
414 # define SSL_HANDSHAKE_MAC_SHA384 SSL_MD_SHA384_IDX
415 # define SSL_HANDSHAKE_MAC_GOST94 SSL_MD_GOST94_IDX
416 # define SSL_HANDSHAKE_MAC_GOST12_256 SSL_MD_GOST12_256_IDX
417 # define SSL_HANDSHAKE_MAC_GOST12_512 SSL_MD_GOST12_512_IDX
418 # define SSL_HANDSHAKE_MAC_DEFAULT SSL_HANDSHAKE_MAC_MD5_SHA1
420 /* Bits 8-15 bits are PRF */
421 # define TLS1_PRF_DGST_SHIFT 8
422 # define TLS1_PRF_SHA1_MD5 (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
423 # define TLS1_PRF_SHA256 (SSL_MD_SHA256_IDX << TLS1_PRF_DGST_SHIFT)
424 # define TLS1_PRF_SHA384 (SSL_MD_SHA384_IDX << TLS1_PRF_DGST_SHIFT)
425 # define TLS1_PRF_GOST94 (SSL_MD_GOST94_IDX << TLS1_PRF_DGST_SHIFT)
426 # define TLS1_PRF_GOST12_256 (SSL_MD_GOST12_256_IDX << TLS1_PRF_DGST_SHIFT)
427 # define TLS1_PRF_GOST12_512 (SSL_MD_GOST12_512_IDX << TLS1_PRF_DGST_SHIFT)
428 # define TLS1_PRF (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
431 * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also
432 * goes into algorithm2)
434 # define TLS1_STREAM_MAC 0x10000
436 # define SSL_DEFAULT_MASK 0X00000020U
438 # define SSL_STRONG_NONE 0x00000001U
439 # define SSL_LOW 0x00000002U
440 # define SSL_MEDIUM 0x00000004U
441 # define SSL_HIGH 0x00000008U
442 # define SSL_FIPS 0x00000010U
443 # define SSL_NOT_DEFAULT 0x00000020U
445 /* we have used 0000003f - 26 bits left to go */
447 /* Check if an SSL structure is using DTLS */
448 # define SSL_IS_DTLS(s) (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
449 /* See if we need explicit IV */
450 # define SSL_USE_EXPLICIT_IV(s) \
451 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV)
453 * See if we use signature algorithms extension and signature algorithm
456 # define SSL_USE_SIGALGS(s) \
457 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS)
459 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
460 * apply to others in future.
462 # define SSL_USE_TLS1_2_CIPHERS(s) \
463 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)
465 * Determine if a client can use TLS 1.2 ciphersuites: can't rely on method
466 * flags because it may not be set to correct version yet.
468 # define SSL_CLIENT_USE_TLS1_2_CIPHERS(s) \
469 ((SSL_IS_DTLS(s) && s->client_version <= DTLS1_2_VERSION) || \
470 (!SSL_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION))
472 # ifdef TLSEXT_TYPE_encrypt_then_mac
473 # define SSL_USE_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC)
475 # define SSL_USE_ETM(s) (0)
478 /* Mostly for SSLv3 */
479 # define SSL_PKEY_RSA_ENC 0
480 # define SSL_PKEY_RSA_SIGN 1
481 # define SSL_PKEY_DSA_SIGN 2
482 # define SSL_PKEY_ECC 3
483 # define SSL_PKEY_GOST01 4
484 # define SSL_PKEY_GOST12_256 5
485 # define SSL_PKEY_GOST12_512 6
486 # define SSL_PKEY_NUM 7
488 * Pseudo-constant. GOST cipher suites can use different certs for 1
489 * SSL_CIPHER. So let's see which one we have in fact.
491 # define SSL_PKEY_GOST_EC SSL_PKEY_NUM+1
494 * SSL_kRSA <- RSA_ENC
495 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
496 * SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN
497 * SSL_aRSA <- RSA_ENC | RSA_SIGN
498 * SSL_aDSS <- DSA_SIGN
502 #define CERT_INVALID 0
503 #define CERT_PUBLIC_KEY 1
504 #define CERT_PRIVATE_KEY 2
508 /* CipherSuite length. SSLv3 and all TLS versions. */
509 #define TLS_CIPHER_LEN 2
510 /* used to hold info on the particular ciphers used */
511 struct ssl_cipher_st {
513 const char *name; /* text name */
514 uint32_t id; /* id, 4 bytes, first is version */
516 * changed in 1.0.0: these four used to be portions of a single value
519 uint32_t algorithm_mkey; /* key exchange algorithm */
520 uint32_t algorithm_auth; /* server authentication */
521 uint32_t algorithm_enc; /* symmetric encryption */
522 uint32_t algorithm_mac; /* symmetric authentication */
523 uint32_t algorithm_ssl; /* (major) protocol version */
524 uint32_t algo_strength; /* strength and export flags */
525 uint32_t algorithm2; /* Extra flags */
526 int32_t strength_bits; /* Number of bits really used */
527 uint32_t alg_bits; /* Number of bits for algorithm */
530 /* Used to hold SSL/TLS functions */
531 struct ssl_method_st {
533 int (*ssl_new) (SSL *s);
534 void (*ssl_clear) (SSL *s);
535 void (*ssl_free) (SSL *s);
536 int (*ssl_accept) (SSL *s);
537 int (*ssl_connect) (SSL *s);
538 int (*ssl_read) (SSL *s, void *buf, int len);
539 int (*ssl_peek) (SSL *s, void *buf, int len);
540 int (*ssl_write) (SSL *s, const void *buf, int len);
541 int (*ssl_shutdown) (SSL *s);
542 int (*ssl_renegotiate) (SSL *s);
543 int (*ssl_renegotiate_check) (SSL *s);
544 int (*ssl_read_bytes) (SSL *s, int type, int *recvd_type,
545 unsigned char *buf, int len, int peek);
546 int (*ssl_write_bytes) (SSL *s, int type, const void *buf_, int len);
547 int (*ssl_dispatch_alert) (SSL *s);
548 long (*ssl_ctrl) (SSL *s, int cmd, long larg, void *parg);
549 long (*ssl_ctx_ctrl) (SSL_CTX *ctx, int cmd, long larg, void *parg);
550 const SSL_CIPHER *(*get_cipher_by_char) (const unsigned char *ptr);
551 int (*put_cipher_by_char) (const SSL_CIPHER *cipher, unsigned char *ptr);
552 int (*ssl_pending) (const SSL *s);
553 int (*num_ciphers) (void);
554 const SSL_CIPHER *(*get_cipher) (unsigned ncipher);
555 const struct ssl_method_st *(*get_ssl_method) (int version);
556 long (*get_timeout) (void);
557 const struct ssl3_enc_method *ssl3_enc; /* Extra SSLv3/TLS stuff */
558 int (*ssl_version) (void);
559 long (*ssl_callback_ctrl) (SSL *s, int cb_id, void (*fp) (void));
560 long (*ssl_ctx_callback_ctrl) (SSL_CTX *s, int cb_id, void (*fp) (void));
564 * Lets make this into an ASN.1 type structure as follows
565 * SSL_SESSION_ID ::= SEQUENCE {
566 * version INTEGER, -- structure version number
567 * SSLversion INTEGER, -- SSL version number
568 * Cipher OCTET STRING, -- the 3 byte cipher ID
569 * Session_ID OCTET STRING, -- the Session ID
570 * Master_key OCTET STRING, -- the master key
571 * Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument
572 * Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time
573 * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds
574 * Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate
575 * Session_ID_context [ 4 ] EXPLICIT OCTET STRING, -- the Session ID context
576 * Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer'
577 * HostName [ 6 ] EXPLICIT OCTET STRING, -- optional HostName from servername TLS extension
578 * PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint
579 * PSK_identity [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity
580 * Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket
581 * Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only)
582 * Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method
583 * SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username
584 * flags [ 13 ] EXPLICIT INTEGER -- optional flags
586 * Look in ssl/ssl_asn1.c for more details
587 * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-).
589 struct ssl_session_st {
590 int ssl_version; /* what ssl version session info is being
592 int master_key_length;
593 unsigned char master_key[SSL_MAX_MASTER_KEY_LENGTH];
594 /* session_id - valid? */
595 unsigned int session_id_length;
596 unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
598 * this is used to determine whether the session is being reused in the
599 * appropriate context. It is up to the application to set this, via
602 unsigned int sid_ctx_length;
603 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
604 # ifndef OPENSSL_NO_PSK
605 char *psk_identity_hint;
609 * Used to indicate that session resumption is not allowed. Applications
610 * can also set this bit for a new session via not_resumable_session_cb
611 * to disable session caching and tickets.
614 /* This is the cert and type for the other end. */
617 /* Certificate chain of peer */
618 STACK_OF(X509) *peer_chain;
620 * when app_verify_callback accepts a session where the peer's
621 * certificate is not ok, we must remember the error for session reuse:
623 long verify_result; /* only for servers */
627 unsigned int compress_meth; /* Need to lookup the method */
628 const SSL_CIPHER *cipher;
629 unsigned long cipher_id; /* when ASN.1 loaded, this needs to be used
630 * to load the 'cipher' structure */
631 STACK_OF(SSL_CIPHER) *ciphers; /* shared ciphers? */
632 CRYPTO_EX_DATA ex_data; /* application specific data */
634 * These are used to make removal of session-ids more efficient and to
635 * implement a maximum cache size.
637 struct ssl_session_st *prev, *next;
638 char *tlsext_hostname;
639 # ifndef OPENSSL_NO_EC
640 size_t tlsext_ecpointformatlist_length;
641 unsigned char *tlsext_ecpointformatlist; /* peer's list */
642 size_t tlsext_ellipticcurvelist_length;
643 unsigned char *tlsext_ellipticcurvelist; /* peer's list */
644 # endif /* OPENSSL_NO_EC */
646 unsigned char *tlsext_tick; /* Session ticket */
647 size_t tlsext_ticklen; /* Session ticket length */
648 unsigned long tlsext_tick_lifetime_hint; /* Session lifetime hint in seconds */
649 # ifndef OPENSSL_NO_SRP
655 /* Extended master secret support */
656 # define SSL_SESS_FLAG_EXTMS 0x1
659 # ifndef OPENSSL_NO_SRP
661 typedef struct srp_ctx_st {
662 /* param for all the callbacks */
664 /* set client Hello login callback */
665 int (*TLS_ext_srp_username_callback) (SSL *, int *, void *);
666 /* set SRP N/g param callback for verification */
667 int (*SRP_verify_param_callback) (SSL *, void *);
668 /* set SRP client passwd callback */
669 char *(*SRP_give_srp_client_pwd_callback) (SSL *, void *);
671 BIGNUM *N, *g, *s, *B, *A;
675 unsigned long srp_Mask;
680 typedef struct ssl_comp_st SSL_COMP;
688 DECLARE_STACK_OF(SSL_COMP)
689 DECLARE_LHASH_OF(SSL_SESSION);
693 const SSL_METHOD *method;
694 STACK_OF(SSL_CIPHER) *cipher_list;
695 /* same as above but sorted for lookup */
696 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
697 struct x509_store_st /* X509_STORE */ *cert_store;
698 LHASH_OF(SSL_SESSION) *sessions;
700 * Most session-ids that will be cached, default is
701 * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited.
703 unsigned long session_cache_size;
704 struct ssl_session_st *session_cache_head;
705 struct ssl_session_st *session_cache_tail;
707 * This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT,
708 * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which
709 * means only SSL_accept which cache SSL_SESSIONS.
711 uint32_t session_cache_mode;
713 * If timeout is not 0, it is the default timeout value set when
714 * SSL_new() is called. This has been put in to make life easier to set
717 long session_timeout;
719 * If this callback is not null, it will be called each time a session id
720 * is added to the cache. If this function returns 1, it means that the
721 * callback will do a SSL_SESSION_free() when it has finished using it.
722 * Otherwise, on 0, it means the callback has finished with it. If
723 * remove_session_cb is not null, it will be called when a session-id is
724 * removed from the cache. After the call, OpenSSL will
725 * SSL_SESSION_free() it.
727 int (*new_session_cb) (struct ssl_st *ssl, SSL_SESSION *sess);
728 void (*remove_session_cb) (struct ssl_ctx_st *ctx, SSL_SESSION *sess);
729 SSL_SESSION *(*get_session_cb) (struct ssl_st *ssl,
730 unsigned char *data, int len, int *copy);
732 int sess_connect; /* SSL new conn - started */
733 int sess_connect_renegotiate; /* SSL reneg - requested */
734 int sess_connect_good; /* SSL new conne/reneg - finished */
735 int sess_accept; /* SSL new accept - started */
736 int sess_accept_renegotiate; /* SSL reneg - requested */
737 int sess_accept_good; /* SSL accept/reneg - finished */
738 int sess_miss; /* session lookup misses */
739 int sess_timeout; /* reuse attempt on timeouted session */
740 int sess_cache_full; /* session removed due to full cache */
741 int sess_hit; /* session reuse actually done */
742 int sess_cb_hit; /* session-id that was not in the cache was
743 * passed back via the callback. This
744 * indicates that the application is
745 * supplying session-id's from other
746 * processes - spooky :-) */
751 /* if defined, these override the X509_verify_cert() calls */
752 int (*app_verify_callback) (X509_STORE_CTX *, void *);
753 void *app_verify_arg;
755 * before OpenSSL 0.9.7, 'app_verify_arg' was ignored
756 * ('app_verify_callback' was called with just one argument)
759 /* Default password callback. */
760 pem_password_cb *default_passwd_callback;
762 /* Default password callback user data. */
763 void *default_passwd_callback_userdata;
765 /* get client cert callback */
766 int (*client_cert_cb) (SSL *ssl, X509 **x509, EVP_PKEY **pkey);
768 /* cookie generate callback */
769 int (*app_gen_cookie_cb) (SSL *ssl, unsigned char *cookie,
770 unsigned int *cookie_len);
772 /* verify cookie callback */
773 int (*app_verify_cookie_cb) (SSL *ssl, const unsigned char *cookie,
774 unsigned int cookie_len);
776 CRYPTO_EX_DATA ex_data;
778 const EVP_MD *md5; /* For SSLv3/TLSv1 'ssl3-md5' */
779 const EVP_MD *sha1; /* For SSLv3/TLSv1 'ssl3->sha1' */
781 STACK_OF(X509) *extra_certs;
782 STACK_OF(SSL_COMP) *comp_methods; /* stack of SSL_COMP, SSLv3/TLSv1 */
784 /* Default values used when no per-SSL value is defined follow */
786 /* used if SSL's info_callback is NULL */
787 void (*info_callback) (const SSL *ssl, int type, int val);
789 /* what we put in client cert requests */
790 STACK_OF(X509_NAME) *client_CA;
793 * Default values to use in SSL structures follow (these are copied by
801 struct cert_st /* CERT */ *cert;
804 /* callback that allows applications to peek at protocol messages */
805 void (*msg_callback) (int write_p, int version, int content_type,
806 const void *buf, size_t len, SSL *ssl, void *arg);
807 void *msg_callback_arg;
809 uint32_t verify_mode;
810 unsigned int sid_ctx_length;
811 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
812 /* called 'verify_callback' in the SSL */
813 int (*default_verify_callback) (int ok, X509_STORE_CTX *ctx);
815 /* Default generate session ID callback. */
816 GEN_SESSION_CB generate_session_id;
818 X509_VERIFY_PARAM *param;
823 * Maximum amount of data to send in one fragment. actual record size can
824 * be more than this due to padding and MAC overheads.
826 unsigned int max_send_fragment;
828 # ifndef OPENSSL_NO_ENGINE
830 * Engine to pass requests for client certs to
832 ENGINE *client_cert_engine;
835 /* TLS extensions servername callback */
836 int (*tlsext_servername_callback) (SSL *, int *, void *);
837 void *tlsext_servername_arg;
838 /* RFC 4507 session ticket keys */
839 unsigned char tlsext_tick_key_name[16];
840 unsigned char tlsext_tick_hmac_key[16];
841 unsigned char tlsext_tick_aes_key[16];
842 /* Callback to support customisation of ticket key setting */
843 int (*tlsext_ticket_key_cb) (SSL *ssl,
844 unsigned char *name, unsigned char *iv,
845 EVP_CIPHER_CTX *ectx,
846 HMAC_CTX *hctx, int enc);
848 /* certificate status request info */
849 /* Callback for status request */
850 int (*tlsext_status_cb) (SSL *ssl, void *arg);
851 void *tlsext_status_arg;
853 # ifndef OPENSSL_NO_PSK
854 unsigned int (*psk_client_callback) (SSL *ssl, const char *hint,
856 unsigned int max_identity_len,
858 unsigned int max_psk_len);
859 unsigned int (*psk_server_callback) (SSL *ssl, const char *identity,
861 unsigned int max_psk_len);
864 # ifndef OPENSSL_NO_SRP
865 SRP_CTX srp_ctx; /* ctx for SRP authentication */
868 # ifndef OPENSSL_NO_NEXTPROTONEG
869 /* Next protocol negotiation information */
870 /* (for experimental NPN extension). */
873 * For a server, this contains a callback function by which the set of
874 * advertised protocols can be provided.
876 int (*next_protos_advertised_cb) (SSL *s, const unsigned char **buf,
877 unsigned int *len, void *arg);
878 void *next_protos_advertised_cb_arg;
880 * For a client, this contains a callback function that selects the next
881 * protocol from the list provided by the server.
883 int (*next_proto_select_cb) (SSL *s, unsigned char **out,
884 unsigned char *outlen,
885 const unsigned char *in,
886 unsigned int inlen, void *arg);
887 void *next_proto_select_cb_arg;
891 * ALPN information (we are in the process of transitioning from NPN to
896 * For a server, this contains a callback function that allows the
897 * server to select the protocol for the connection.
898 * out: on successful return, this must point to the raw protocol
899 * name (without the length prefix).
900 * outlen: on successful return, this contains the length of |*out|.
901 * in: points to the client's list of supported protocols in
903 * inlen: the length of |in|.
905 int (*alpn_select_cb) (SSL *s,
906 const unsigned char **out,
907 unsigned char *outlen,
908 const unsigned char *in,
909 unsigned int inlen, void *arg);
910 void *alpn_select_cb_arg;
913 * For a client, this contains the list of supported protocols in wire
916 unsigned char *alpn_client_proto_list;
917 unsigned alpn_client_proto_list_len;
919 /* SRTP profiles we are willing to do from RFC 5764 */
920 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
922 * Callback for disabling session caching and ticket support on a session
923 * basis, depending on the chosen cipher.
925 int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure);
926 # ifndef OPENSSL_NO_EC
927 /* EC extension values inherited by SSL structure */
928 size_t tlsext_ecpointformatlist_length;
929 unsigned char *tlsext_ecpointformatlist;
930 size_t tlsext_ellipticcurvelist_length;
931 unsigned char *tlsext_ellipticcurvelist;
932 # endif /* OPENSSL_NO_EC */
938 * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION,
944 const SSL_METHOD *method;
946 * There are 2 BIO's even though they are normally both the same. This
947 * is so data can be read and written to different handlers
949 /* used by SSL_read */
951 /* used by SSL_write */
953 /* used during session-id reuse to concatenate messages */
956 * This holds a variable that indicates what we were doing when a 0 or -1
957 * is returned. This is needed for non-blocking IO so we know what
958 * request needs re-doing when in SSL_accept or SSL_connect
962 int (*handshake_func) (SSL *);
964 * Imagine that here's a boolean member "init" that is switched as soon
965 * as SSL_set_{accept/connect}_state is called for the first time, so
966 * that "state" and "handshake_func" are properly initialized. But as
967 * handshake_func is == 0 until then, we use this test instead of an
970 /* are we the server side? */
973 * Generate a new session or reuse an old one.
974 * NB: For servers, the 'new' session may actually be a previously
975 * cached session or even the previous session unless
976 * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set
979 /* don't send shutdown packets */
981 /* we have shut things down, 0x01 sent, 0x02 for received */
986 BUF_MEM *init_buf; /* buffer used during init */
987 void *init_msg; /* pointer to handshake message body, set by
988 * ssl3_get_message() */
989 int init_num; /* amount read/written */
990 int init_off; /* amount read/written */
992 struct ssl3_state_st *s3; /* SSLv3 variables */
993 struct dtls1_state_st *d1; /* DTLSv1 variables */
995 /* callback that allows applications to peek at protocol messages */
996 void (*msg_callback) (int write_p, int version, int content_type,
997 const void *buf, size_t len, SSL *ssl, void *arg);
998 void *msg_callback_arg;
999 int hit; /* reusing a previous session */
1000 X509_VERIFY_PARAM *param;
1002 STACK_OF(SSL_CIPHER) *cipher_list;
1003 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
1005 * These are the ones being used, the ones in SSL_SESSION are the ones to
1006 * be 'copied' into these ones
1009 EVP_CIPHER_CTX *enc_read_ctx; /* cryptographic state */
1010 EVP_MD_CTX *read_hash; /* used for mac generation */
1011 COMP_CTX *compress; /* compression */
1012 COMP_CTX *expand; /* uncompress */
1013 EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */
1014 EVP_MD_CTX *write_hash; /* used for mac generation */
1017 /* This is used to hold the server certificate used */
1018 struct cert_st /* CERT */ *cert;
1020 * the session_id_context is used to ensure sessions are only reused in
1021 * the appropriate context
1023 unsigned int sid_ctx_length;
1024 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
1025 /* This can also be in the session once a session is established */
1026 SSL_SESSION *session;
1027 /* Default generate session ID callback. */
1028 GEN_SESSION_CB generate_session_id;
1031 * 0 don't care about verify failure.
1032 * 1 fail if verify fails
1034 uint32_t verify_mode;
1035 /* fail if callback returns 0 */
1036 int (*verify_callback) (int ok, X509_STORE_CTX *ctx);
1037 /* optional informational callback */
1038 void (*info_callback) (const SSL *ssl, int type, int val);
1039 /* error bytes to be written */
1043 # ifndef OPENSSL_NO_PSK
1044 unsigned int (*psk_client_callback) (SSL *ssl, const char *hint,
1046 unsigned int max_identity_len,
1048 unsigned int max_psk_len);
1049 unsigned int (*psk_server_callback) (SSL *ssl, const char *identity,
1051 unsigned int max_psk_len);
1055 * set this flag to 1 and a sleep(1) is put into all SSL_read() and
1056 * SSL_write() calls, good for nbio debuging :-)
1059 /* extra application data */
1061 CRYPTO_EX_DATA ex_data;
1062 /* for server side, keep the list of CA_dn we can use */
1063 STACK_OF(X509_NAME) *client_CA;
1065 /* protocol behaviour */
1071 /* what was passed, used for SSLv3/TLS rollback check */
1073 unsigned int max_send_fragment;
1075 /* TLS extension debug callback */
1076 void (*tlsext_debug_cb) (SSL *s, int client_server, int type,
1077 unsigned char *data, int len, void *arg);
1078 void *tlsext_debug_arg;
1079 char *tlsext_hostname;
1081 * no further mod of servername
1082 * 0 : call the servername extension callback.
1083 * 1 : prepare 2, allow last ack just after in server callback.
1084 * 2 : don't call servername callback, no ack in server hello
1086 int servername_done;
1087 /* certificate status request info */
1088 /* Status type or -1 if no status type */
1089 int tlsext_status_type;
1090 /* Expect OCSP CertificateStatus message */
1091 int tlsext_status_expected;
1092 /* OCSP status request only */
1093 STACK_OF(OCSP_RESPID) *tlsext_ocsp_ids;
1094 X509_EXTENSIONS *tlsext_ocsp_exts;
1095 /* OCSP response received or to be sent */
1096 unsigned char *tlsext_ocsp_resp;
1097 int tlsext_ocsp_resplen;
1098 /* RFC4507 session ticket expected to be received or sent */
1099 int tlsext_ticket_expected;
1100 # ifndef OPENSSL_NO_EC
1101 size_t tlsext_ecpointformatlist_length;
1103 unsigned char *tlsext_ecpointformatlist;
1104 size_t tlsext_ellipticcurvelist_length;
1106 unsigned char *tlsext_ellipticcurvelist;
1107 # endif /* OPENSSL_NO_EC */
1108 /* TLS Session Ticket extension override */
1109 TLS_SESSION_TICKET_EXT *tlsext_session_ticket;
1110 /* TLS Session Ticket extension callback */
1111 tls_session_ticket_ext_cb_fn tls_session_ticket_ext_cb;
1112 void *tls_session_ticket_ext_cb_arg;
1113 /* TLS pre-shared secret session resumption */
1114 tls_session_secret_cb_fn tls_session_secret_cb;
1115 void *tls_session_secret_cb_arg;
1116 SSL_CTX *initial_ctx; /* initial ctx, used to store sessions */
1117 # ifndef OPENSSL_NO_NEXTPROTONEG
1119 * Next protocol negotiation. For the client, this is the protocol that
1120 * we sent in NextProtocol and is set when handling ServerHello
1121 * extensions. For a server, this is the client's selected_protocol from
1122 * NextProtocol and is set when handling the NextProtocol message, before
1123 * the Finished message.
1125 unsigned char *next_proto_negotiated;
1126 unsigned char next_proto_negotiated_len;
1128 # define session_ctx initial_ctx
1130 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
1131 /* What's been chosen */
1132 SRTP_PROTECTION_PROFILE *srtp_profile;
1134 * Is use of the Heartbeat extension negotiated?
1137 * 2: enabled, but not allowed to send Requests
1139 unsigned int tlsext_heartbeat;
1140 /* Indicates if a HeartbeatRequest is in flight */
1141 unsigned int tlsext_hb_pending;
1142 /* HeartbeatRequest sequence number */
1143 unsigned int tlsext_hb_seq;
1145 * For a client, this contains the list of supported protocols in wire
1148 unsigned char *alpn_client_proto_list;
1149 unsigned alpn_client_proto_list_len;
1152 * 1 if we are renegotiating.
1153 * 2 if we are a server and are inside a handshake
1154 * (i.e. not just sending a HelloRequest)
1157 # ifndef OPENSSL_NO_SRP
1158 /* ctx for SRP authentication */
1162 * Callback for disabling session caching and ticket support on a session
1163 * basis, depending on the chosen cipher.
1165 int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure);
1167 RECORD_LAYER rlayer;
1169 /* Default password callback. */
1170 pem_password_cb *default_passwd_callback;
1172 /* Default password callback user data. */
1173 void *default_passwd_callback_userdata;
1175 /* Async Job info */
1180 typedef struct ssl3_state_st {
1182 int read_mac_secret_size;
1183 unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
1184 int write_mac_secret_size;
1185 unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
1186 unsigned char server_random[SSL3_RANDOM_SIZE];
1187 unsigned char client_random[SSL3_RANDOM_SIZE];
1188 /* flags for countermeasure against known-IV weakness */
1189 int need_empty_fragments;
1190 int empty_fragment_done;
1191 /* used during startup, digest all incoming/outgoing packets */
1192 BIO *handshake_buffer;
1194 * When handshake digest is determined, buffer is hashed and
1195 * freed and MD_CTX for the required digest is stored here.
1197 EVP_MD_CTX *handshake_dgst;
1199 * Set whenever an expected ChangeCipherSpec message is processed.
1200 * Unset when the peer's Finished message is received.
1201 * Unexpected ChangeCipherSpec messages trigger a fatal alert.
1203 int change_cipher_spec;
1207 * we allow one fatal and one warning alert to be outstanding, send close
1208 * alert via the warning alert
1211 unsigned char send_alert[2];
1213 * This flag is set when we should renegotiate ASAP, basically when there
1214 * is no more data in the read or write buffers
1217 int total_renegotiations;
1218 int num_renegotiations;
1219 int in_read_app_data;
1221 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
1222 unsigned char finish_md[EVP_MAX_MD_SIZE * 2];
1224 unsigned char peer_finish_md[EVP_MAX_MD_SIZE * 2];
1225 int peer_finish_md_len;
1226 unsigned long message_size;
1228 /* used to hold the new cipher we are going to use */
1229 const SSL_CIPHER *new_cipher;
1230 # ifndef OPENSSL_NO_DH
1233 # ifndef OPENSSL_NO_EC
1234 EVP_PKEY *pkey; /* holds short lived ECDH key */
1236 /* used for certificate requests */
1239 char ctype[SSL3_CT_NUMBER];
1240 STACK_OF(X509_NAME) *ca_names;
1241 int key_block_length;
1242 unsigned char *key_block;
1243 const EVP_CIPHER *new_sym_enc;
1244 const EVP_MD *new_hash;
1245 int new_mac_pkey_type;
1246 int new_mac_secret_size;
1247 # ifndef OPENSSL_NO_COMP
1248 const SSL_COMP *new_compression;
1250 char *new_compression;
1253 /* Raw values of the cipher list from a client */
1254 unsigned char *ciphers_raw;
1255 size_t ciphers_rawlen;
1256 /* Temporary storage for premaster secret */
1259 #ifndef OPENSSL_NO_PSK
1260 /* Temporary storage for PSK key */
1265 * signature algorithms peer reports: e.g. supported signature
1266 * algorithms extension for server or as part of a certificate
1267 * request for client.
1269 unsigned char *peer_sigalgs;
1270 /* Size of above array */
1271 size_t peer_sigalgslen;
1272 /* Digest peer uses for signing */
1273 const EVP_MD *peer_md;
1274 /* Array of digests used for signing */
1275 const EVP_MD *md[SSL_PKEY_NUM];
1277 * Set if corresponding CERT_PKEY can be used with current
1278 * SSL session: e.g. appropriate curve, signature algorithms etc.
1279 * If zero it can't be used at all.
1281 uint32_t valid_flags[SSL_PKEY_NUM];
1283 * For servers the following masks are for the key and auth algorithms
1284 * that are supported by the certs below. For clients they are masks of
1285 * *disabled* algorithms based on the current session.
1293 /* Connection binding to prevent renegotiation attacks */
1294 unsigned char previous_client_finished[EVP_MAX_MD_SIZE];
1295 unsigned char previous_client_finished_len;
1296 unsigned char previous_server_finished[EVP_MAX_MD_SIZE];
1297 unsigned char previous_server_finished_len;
1298 int send_connection_binding; /* TODOEKR */
1300 # ifndef OPENSSL_NO_NEXTPROTONEG
1302 * Set if we saw the Next Protocol Negotiation extension from our peer.
1304 int next_proto_neg_seen;
1308 * ALPN information (we are in the process of transitioning from NPN to
1313 * In a server these point to the selected ALPN protocol after the
1314 * ClientHello has been processed. In a client these contain the protocol
1315 * that the server selected once the ServerHello has been processed.
1317 unsigned char *alpn_selected;
1318 unsigned alpn_selected_len;
1320 # ifndef OPENSSL_NO_EC
1322 * This is set to true if we believe that this is a version of Safari
1323 * running on OS X 10.6 or newer. We wish to know this because Safari on
1324 * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support.
1326 char is_probably_safari;
1327 # endif /* !OPENSSL_NO_EC */
1329 /* For clients: peer temporary key */
1330 # if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
1337 /* DTLS structures */
1339 # ifndef OPENSSL_NO_SCTP
1340 # define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP"
1343 /* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */
1344 # define DTLS1_MAX_MTU_OVERHEAD 48
1347 * Flag used in message reuse to indicate the buffer contains the record
1348 * header as well as the the handshake message header.
1350 # define DTLS1_SKIP_RECORD_HEADER 2
1352 struct dtls1_retransmit_state {
1353 EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */
1354 EVP_MD_CTX *write_hash; /* used for mac generation */
1355 COMP_CTX *compress; /* compression */
1356 SSL_SESSION *session;
1357 unsigned short epoch;
1360 struct hm_header_st {
1362 unsigned long msg_len;
1364 unsigned long frag_off;
1365 unsigned long frag_len;
1366 unsigned int is_ccs;
1367 struct dtls1_retransmit_state saved_retransmit_state;
1370 struct dtls1_timeout_st {
1371 /* Number of read timeouts so far */
1372 unsigned int read_timeouts;
1373 /* Number of write timeouts so far */
1374 unsigned int write_timeouts;
1375 /* Number of alerts received so far */
1376 unsigned int num_alerts;
1379 typedef struct hm_fragment_st {
1380 struct hm_header_st msg_header;
1381 unsigned char *fragment;
1382 unsigned char *reassembly;
1385 typedef struct dtls1_state_st {
1386 unsigned char cookie[DTLS1_COOKIE_LENGTH];
1387 unsigned int cookie_len;
1388 unsigned int cookie_verified;
1390 /* handshake message numbers */
1391 unsigned short handshake_write_seq;
1392 unsigned short next_handshake_write_seq;
1393 unsigned short handshake_read_seq;
1395 /* Buffered handshake messages */
1396 pqueue buffered_messages;
1397 /* Buffered (sent) handshake records */
1398 pqueue sent_messages;
1400 unsigned int link_mtu; /* max on-the-wire DTLS packet size */
1401 unsigned int mtu; /* max DTLS packet size */
1402 struct hm_header_st w_msg_hdr;
1403 struct hm_header_st r_msg_hdr;
1404 struct dtls1_timeout_st timeout;
1406 * Indicates when the last handshake msg or heartbeat sent will timeout
1408 struct timeval next_timeout;
1409 /* Timeout duration */
1410 unsigned short timeout_duration;
1412 unsigned int retransmitting;
1413 # ifndef OPENSSL_NO_SCTP
1414 int shutdown_received;
1420 # ifndef OPENSSL_NO_EC
1422 * From ECC-TLS draft, used in encoding the curve type in ECParameters
1424 # define EXPLICIT_PRIME_CURVE_TYPE 1
1425 # define EXPLICIT_CHAR2_CURVE_TYPE 2
1426 # define NAMED_CURVE_TYPE 3
1427 # endif /* OPENSSL_NO_EC */
1429 typedef struct cert_pkey_st {
1431 EVP_PKEY *privatekey;
1432 /* Chain for this certificate */
1433 STACK_OF(X509) *chain;
1436 * serverinfo data for this certificate. The data is in TLS Extension
1437 * wire format, specifically it's a series of records like:
1438 * uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension)
1440 * uint8_t data[length];
1442 unsigned char *serverinfo;
1443 size_t serverinfo_length;
1445 /* Retrieve Suite B flags */
1446 # define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS)
1447 /* Uses to check strict mode: suite B modes are always strict */
1448 # define SSL_CERT_FLAGS_CHECK_TLS_STRICT \
1449 (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT)
1452 unsigned short ext_type;
1454 * Per-connection flags relating to this extension type: not used if
1455 * part of an SSL_CTX structure.
1458 custom_ext_add_cb add_cb;
1459 custom_ext_free_cb free_cb;
1461 custom_ext_parse_cb parse_cb;
1463 } custom_ext_method;
1465 /* ext_flags values */
1468 * Indicates an extension has been received. Used to check for unsolicited or
1469 * duplicate extensions.
1471 # define SSL_EXT_FLAG_RECEIVED 0x1
1473 * Indicates an extension has been sent: used to enable sending of
1474 * corresponding ServerHello extension.
1476 # define SSL_EXT_FLAG_SENT 0x2
1479 custom_ext_method *meths;
1481 } custom_ext_methods;
1483 typedef struct cert_st {
1484 /* Current active set */
1486 * ALWAYS points to an element of the pkeys array
1487 * Probably it would make more sense to store
1488 * an index, not a pointer.
1491 # ifndef OPENSSL_NO_DH
1493 DH *(*dh_tmp_cb) (SSL *ssl, int is_export, int keysize);
1496 /* Flags related to certificates */
1497 uint32_t cert_flags;
1498 CERT_PKEY pkeys[SSL_PKEY_NUM];
1500 * Certificate types (received or sent) in certificate request message.
1501 * On receive this is only set if number of certificate types exceeds
1504 unsigned char *ctypes;
1507 * suppported signature algorithms. When set on a client this is sent in
1508 * the client hello as the supported signature algorithms extension. For
1509 * servers it represents the signature algorithms we are willing to use.
1511 unsigned char *conf_sigalgs;
1512 /* Size of above array */
1513 size_t conf_sigalgslen;
1515 * Client authentication signature algorithms, if not set then uses
1516 * conf_sigalgs. On servers these will be the signature algorithms sent
1517 * to the client in a cerificate request for TLS 1.2. On a client this
1518 * represents the signature algortithms we are willing to use for client
1521 unsigned char *client_sigalgs;
1522 /* Size of above array */
1523 size_t client_sigalgslen;
1525 * Signature algorithms shared by client and server: cached because these
1526 * are used most often.
1528 TLS_SIGALGS *shared_sigalgs;
1529 size_t shared_sigalgslen;
1531 * Certificate setup callback: if set is called whenever a certificate
1532 * may be required (client or server). the callback can then examine any
1533 * appropriate parameters and setup any certificates required. This
1534 * allows advanced applications to select certificates on the fly: for
1535 * example based on supported signature algorithms or curves.
1537 int (*cert_cb) (SSL *ssl, void *arg);
1540 * Optional X509_STORE for chain building or certificate validation If
1541 * NULL the parent SSL_CTX store is used instead.
1543 X509_STORE *chain_store;
1544 X509_STORE *verify_store;
1545 /* Custom extension methods for server and client */
1546 custom_ext_methods cli_ext;
1547 custom_ext_methods srv_ext;
1548 /* Security callback */
1549 int (*sec_cb) (SSL *s, SSL_CTX *ctx, int op, int bits, int nid,
1550 void *other, void *ex);
1551 /* Security level */
1554 #ifndef OPENSSL_NO_PSK
1555 /* If not NULL psk identity hint to use for servers */
1556 char *psk_identity_hint;
1558 int references; /* >1 only if SSL_copy_session_id is used */
1561 /* Structure containing decoded values of signature algorithms extension */
1562 struct tls_sigalgs_st {
1563 /* NID of hash algorithm */
1565 /* NID of signature algorithm */
1567 /* Combined hash and signature NID */
1568 int signandhash_nid;
1569 /* Raw values used in extension */
1570 unsigned char rsign;
1571 unsigned char rhash;
1582 * #define ABORT_DEBUG
1585 * #define PKT_DEBUG 1
1591 * #define DES_OFB_DEBUG
1600 * #define IDEA_DEBUG
1603 # define FP_ICC (int (*)(const void *,const void *))
1606 * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit
1607 * of a mess of functions, but hell, think of it as an opaque structure :-)
1609 typedef struct ssl3_enc_method {
1610 int (*enc) (SSL *, int);
1611 int (*mac) (SSL *, unsigned char *, int);
1612 int (*setup_key_block) (SSL *);
1613 int (*generate_master_secret) (SSL *, unsigned char *, unsigned char *,
1615 int (*change_cipher_state) (SSL *, int);
1616 int (*final_finish_mac) (SSL *, const char *, int, unsigned char *);
1617 int finish_mac_length;
1618 const char *client_finished_label;
1619 int client_finished_label_len;
1620 const char *server_finished_label;
1621 int server_finished_label_len;
1622 int (*alert_value) (int);
1623 int (*export_keying_material) (SSL *, unsigned char *, size_t,
1624 const char *, size_t,
1625 const unsigned char *, size_t,
1627 /* Various flags indicating protocol version requirements */
1629 /* Handshake header length */
1631 /* Set the handshake header */
1632 int (*set_handshake_header) (SSL *s, int type, unsigned long len);
1633 /* Write out handshake message */
1634 int (*do_write) (SSL *s);
1637 # define SSL_HM_HEADER_LENGTH(s) s->method->ssl3_enc->hhlen
1638 # define ssl_handshake_start(s) \
1639 (((unsigned char *)s->init_buf->data) + s->method->ssl3_enc->hhlen)
1640 # define ssl_set_handshake_header(s, htype, len) \
1641 s->method->ssl3_enc->set_handshake_header(s, htype, len)
1642 # define ssl_do_write(s) s->method->ssl3_enc->do_write(s)
1644 /* Values for enc_flags */
1646 /* Uses explicit IV for CBC mode */
1647 # define SSL_ENC_FLAG_EXPLICIT_IV 0x1
1648 /* Uses signature algorithms extension */
1649 # define SSL_ENC_FLAG_SIGALGS 0x2
1650 /* Uses SHA256 default PRF */
1651 # define SSL_ENC_FLAG_SHA256_PRF 0x4
1653 # define SSL_ENC_FLAG_DTLS 0x8
1655 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
1656 * apply to others in future.
1658 # define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10
1660 # ifndef OPENSSL_NO_COMP
1661 /* Used for holding the relevant compression methods loaded into SSL_CTX */
1662 typedef struct ssl3_comp_st {
1663 int comp_id; /* The identifier byte for this compression
1665 char *name; /* Text name used for the compression type */
1666 COMP_METHOD *method; /* The method :-) */
1670 extern SSL3_ENC_METHOD ssl3_undef_enc_method;
1671 OPENSSL_EXTERN const SSL_CIPHER ssl3_ciphers[];
1673 SSL_METHOD *ssl_bad_method(int ver);
1675 extern const SSL3_ENC_METHOD TLSv1_enc_data;
1676 extern const SSL3_ENC_METHOD TLSv1_1_enc_data;
1677 extern const SSL3_ENC_METHOD TLSv1_2_enc_data;
1678 extern const SSL3_ENC_METHOD SSLv3_enc_data;
1679 extern const SSL3_ENC_METHOD DTLSv1_enc_data;
1680 extern const SSL3_ENC_METHOD DTLSv1_2_enc_data;
1682 # define IMPLEMENT_tls_meth_func(version, func_name, s_accept, s_connect, \
1683 s_get_meth, enc_data) \
1684 const SSL_METHOD *func_name(void) \
1686 static const SSL_METHOD func_name##_data= { \
1698 ssl3_renegotiate_check, \
1701 ssl3_dispatch_alert, \
1704 ssl3_get_cipher_by_char, \
1705 ssl3_put_cipher_by_char, \
1710 tls1_default_timeout, \
1712 ssl_undefined_void_function, \
1713 ssl3_callback_ctrl, \
1714 ssl3_ctx_callback_ctrl, \
1716 return &func_name##_data; \
1719 # define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect, s_get_meth) \
1720 const SSL_METHOD *func_name(void) \
1722 static const SSL_METHOD func_name##_data= { \
1734 ssl3_renegotiate_check, \
1737 ssl3_dispatch_alert, \
1740 ssl3_get_cipher_by_char, \
1741 ssl3_put_cipher_by_char, \
1746 ssl3_default_timeout, \
1748 ssl_undefined_void_function, \
1749 ssl3_callback_ctrl, \
1750 ssl3_ctx_callback_ctrl, \
1752 return &func_name##_data; \
1755 # define IMPLEMENT_dtls1_meth_func(version, func_name, s_accept, s_connect, \
1756 s_get_meth, enc_data) \
1757 const SSL_METHOD *func_name(void) \
1759 static const SSL_METHOD func_name##_data= { \
1771 ssl3_renegotiate_check, \
1773 dtls1_write_app_data_bytes, \
1774 dtls1_dispatch_alert, \
1777 ssl3_get_cipher_by_char, \
1778 ssl3_put_cipher_by_char, \
1783 dtls1_default_timeout, \
1785 ssl_undefined_void_function, \
1786 ssl3_callback_ctrl, \
1787 ssl3_ctx_callback_ctrl, \
1789 return &func_name##_data; \
1792 struct openssl_ssl_test_functions {
1793 int (*p_ssl_init_wbio_buffer) (SSL *s, int push);
1794 int (*p_ssl3_setup_buffers) (SSL *s);
1795 int (*p_tls1_process_heartbeat) (SSL *s,
1796 unsigned char *p, unsigned int length);
1797 int (*p_dtls1_process_heartbeat) (SSL *s,
1798 unsigned char *p, unsigned int length);
1801 # ifndef OPENSSL_UNIT_TEST
1803 void ssl_clear_cipher_ctx(SSL *s);
1804 int ssl_clear_bad_session(SSL *s);
1805 __owur CERT *ssl_cert_new(void);
1806 __owur CERT *ssl_cert_dup(CERT *cert);
1807 void ssl_cert_clear_certs(CERT *c);
1808 void ssl_cert_free(CERT *c);
1809 __owur int ssl_get_new_session(SSL *s, int session);
1810 __owur int ssl_get_prev_session(SSL *s, const PACKET *ext,
1811 const PACKET *session_id);
1812 __owur SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket);
1813 __owur int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b);
1814 DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
1815 __owur int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
1816 const SSL_CIPHER *const *bp);
1817 __owur STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth,
1818 STACK_OF(SSL_CIPHER) **pref,
1819 STACK_OF(SSL_CIPHER) **sorted,
1820 const char *rule_str, CERT *c);
1821 void ssl_update_cache(SSL *s, int mode);
1822 __owur int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
1823 const EVP_MD **md, int *mac_pkey_type,
1824 int *mac_secret_size, SSL_COMP **comp, int use_etm);
1825 __owur int ssl_cipher_get_cert_index(const SSL_CIPHER *c);
1826 __owur const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, const unsigned char *ptr);
1827 __owur int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
1828 __owur int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
1829 __owur int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
1830 __owur int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
1831 __owur int ssl_cert_select_current(CERT *c, X509 *x);
1832 __owur int ssl_cert_set_current(CERT *c, long arg);
1833 __owur X509 *ssl_cert_get0_next_certificate(CERT *c, int first);
1834 void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg),
1837 __owur int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk);
1838 __owur int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l);
1839 __owur int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags);
1840 __owur int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref);
1842 __owur int ssl_security(SSL *s, int op, int bits, int nid, void *other);
1843 __owur int ssl_ctx_security(SSL_CTX *ctx, int op, int bits, int nid, void *other);
1845 int ssl_undefined_function(SSL *s);
1846 __owur int ssl_undefined_void_function(void);
1847 __owur int ssl_undefined_const_function(const SSL *s);
1848 __owur CERT_PKEY *ssl_get_server_send_pkey(SSL *s);
1849 __owur int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo,
1850 size_t *serverinfo_length);
1851 __owur EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *c, const EVP_MD **pmd);
1852 __owur int ssl_cert_type(X509 *x, EVP_PKEY *pkey);
1853 void ssl_set_masks(SSL *s, const SSL_CIPHER *cipher);
1854 __owur STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
1855 __owur int ssl_verify_alarm_type(long type);
1856 void ssl_load_ciphers(void);
1857 __owur int ssl_fill_hello_random(SSL *s, int server, unsigned char *field, int len);
1858 __owur int ssl_generate_master_secret(SSL *s, unsigned char *pms, size_t pmslen,
1860 __owur EVP_PKEY *ssl_generate_pkey(EVP_PKEY *pm, int nid);
1861 __owur int ssl_derive(SSL *s, EVP_PKEY *privkey, EVP_PKEY *pubkey);
1862 __owur EVP_PKEY *ssl_dh_to_pkey(DH *dh);
1864 __owur const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
1865 __owur int ssl3_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
1866 void ssl3_init_finished_mac(SSL *s);
1867 __owur int ssl3_setup_key_block(SSL *s);
1868 __owur int ssl3_change_cipher_state(SSL *s, int which);
1869 void ssl3_cleanup_key_block(SSL *s);
1870 __owur int ssl3_do_write(SSL *s, int type);
1871 int ssl3_send_alert(SSL *s, int level, int desc);
1872 __owur int ssl3_generate_master_secret(SSL *s, unsigned char *out,
1873 unsigned char *p, int len);
1874 __owur int ssl3_get_req_cert_type(SSL *s, unsigned char *p);
1875 __owur int ssl3_num_ciphers(void);
1876 __owur const SSL_CIPHER *ssl3_get_cipher(unsigned int u);
1877 int ssl3_renegotiate(SSL *ssl);
1878 int ssl3_renegotiate_check(SSL *ssl);
1879 __owur int ssl3_dispatch_alert(SSL *s);
1880 __owur int ssl3_final_finish_mac(SSL *s, const char *sender, int slen,
1882 void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len);
1883 void ssl3_free_digest_list(SSL *s);
1884 __owur unsigned long ssl3_output_cert_chain(SSL *s, CERT_PKEY *cpk);
1885 __owur SSL_CIPHER *ssl3_choose_cipher(SSL *ssl, STACK_OF(SSL_CIPHER) *clnt,
1886 STACK_OF(SSL_CIPHER) *srvr);
1887 __owur int ssl3_digest_cached_records(SSL *s, int keep);
1888 __owur int ssl3_new(SSL *s);
1889 void ssl3_free(SSL *s);
1890 __owur int ssl3_read(SSL *s, void *buf, int len);
1891 __owur int ssl3_peek(SSL *s, void *buf, int len);
1892 __owur int ssl3_write(SSL *s, const void *buf, int len);
1893 __owur int ssl3_shutdown(SSL *s);
1894 void ssl3_clear(SSL *s);
1895 __owur long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg);
1896 __owur long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg);
1897 __owur long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
1898 __owur long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void));
1900 __owur int ssl3_do_change_cipher_spec(SSL *ssl);
1901 __owur long ssl3_default_timeout(void);
1903 __owur int ssl3_set_handshake_header(SSL *s, int htype, unsigned long len);
1904 __owur int ssl3_handshake_write(SSL *s);
1906 __owur int ssl_allow_compression(SSL *s);
1908 __owur long tls1_default_timeout(void);
1909 __owur int dtls1_do_write(SSL *s, int type);
1910 void dtls1_set_message_header(SSL *s,
1911 unsigned char *p, unsigned char mt,
1913 unsigned long frag_off,
1914 unsigned long frag_len);
1916 __owur int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len);
1918 __owur int dtls1_read_failed(SSL *s, int code);
1919 __owur int dtls1_buffer_message(SSL *s, int ccs);
1920 __owur int dtls1_retransmit_message(SSL *s, unsigned short seq,
1921 unsigned long frag_off, int *found);
1922 __owur int dtls1_get_queue_priority(unsigned short seq, int is_ccs);
1923 int dtls1_retransmit_buffered_messages(SSL *s);
1924 void dtls1_clear_record_buffer(SSL *s);
1925 void dtls1_get_message_header(unsigned char *data,
1926 struct hm_header_st *msg_hdr);
1927 __owur long dtls1_default_timeout(void);
1928 __owur struct timeval *dtls1_get_timeout(SSL *s, struct timeval *timeleft);
1929 __owur int dtls1_check_timeout_num(SSL *s);
1930 __owur int dtls1_handle_timeout(SSL *s);
1931 __owur const SSL_CIPHER *dtls1_get_cipher(unsigned int u);
1932 void dtls1_start_timer(SSL *s);
1933 void dtls1_stop_timer(SSL *s);
1934 __owur int dtls1_is_timer_expired(SSL *s);
1935 void dtls1_double_timeout(SSL *s);
1936 __owur unsigned int dtls_raw_hello_verify_request(unsigned char *buf,
1937 unsigned char *cookie,
1938 unsigned char cookie_len);
1939 __owur int dtls1_send_newsession_ticket(SSL *s);
1940 __owur unsigned int dtls1_min_mtu(SSL *s);
1941 void dtls1_hm_fragment_free(hm_fragment *frag);
1942 __owur int dtls1_query_mtu(SSL *s);
1944 __owur int tls1_new(SSL *s);
1945 void tls1_free(SSL *s);
1946 void tls1_clear(SSL *s);
1947 long tls1_ctrl(SSL *s, int cmd, long larg, void *parg);
1948 long tls1_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
1950 __owur int dtls1_new(SSL *s);
1951 void dtls1_free(SSL *s);
1952 void dtls1_clear(SSL *s);
1953 long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg);
1954 __owur int dtls1_shutdown(SSL *s);
1956 __owur int dtls1_dispatch_alert(SSL *s);
1958 __owur int ssl_init_wbio_buffer(SSL *s, int push);
1959 void ssl_free_wbio_buffer(SSL *s);
1961 __owur int tls1_change_cipher_state(SSL *s, int which);
1962 __owur int tls1_setup_key_block(SSL *s);
1963 __owur int tls1_final_finish_mac(SSL *s,
1964 const char *str, int slen, unsigned char *p);
1965 __owur int tls1_generate_master_secret(SSL *s, unsigned char *out,
1966 unsigned char *p, int len);
1967 __owur int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,
1968 const char *label, size_t llen,
1969 const unsigned char *p, size_t plen,
1971 __owur int tls1_alert_code(int code);
1972 __owur int ssl3_alert_code(int code);
1973 __owur int ssl_ok(SSL *s);
1975 # ifndef OPENSSL_NO_EC
1976 __owur int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s);
1979 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
1981 # ifndef OPENSSL_NO_EC
1982 __owur int tls1_ec_curve_id2nid(int curve_id);
1983 __owur int tls1_ec_nid2curve_id(int nid);
1984 __owur int tls1_check_curve(SSL *s, const unsigned char *p, size_t len);
1985 __owur int tls1_shared_curve(SSL *s, int nmatch);
1986 __owur int tls1_set_curves(unsigned char **pext, size_t *pextlen,
1987 int *curves, size_t ncurves);
1988 __owur int tls1_set_curves_list(unsigned char **pext, size_t *pextlen,
1990 __owur int tls1_check_ec_tmp_key(SSL *s, unsigned long id);
1991 # endif /* OPENSSL_NO_EC */
1993 __owur int tls1_shared_list(SSL *s,
1994 const unsigned char *l1, size_t l1len,
1995 const unsigned char *l2, size_t l2len, int nmatch);
1996 __owur unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *buf,
1997 unsigned char *limit, int *al);
1998 __owur unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *buf,
1999 unsigned char *limit, int *al);
2000 __owur int ssl_parse_clienthello_tlsext(SSL *s, PACKET *pkt);
2001 void ssl_set_default_md(SSL *s);
2002 __owur int tls1_set_server_sigalgs(SSL *s);
2003 __owur int ssl_check_clienthello_tlsext_late(SSL *s);
2004 __owur int ssl_parse_serverhello_tlsext(SSL *s, PACKET *pkt);
2005 __owur int ssl_prepare_clienthello_tlsext(SSL *s);
2006 __owur int ssl_prepare_serverhello_tlsext(SSL *s);
2008 # ifndef OPENSSL_NO_HEARTBEATS
2009 __owur int tls1_heartbeat(SSL *s);
2010 __owur int dtls1_heartbeat(SSL *s);
2011 __owur int tls1_process_heartbeat(SSL *s, unsigned char *p, unsigned int length);
2012 __owur int dtls1_process_heartbeat(SSL *s, unsigned char *p, unsigned int length);
2015 __owur int tls_check_serverhello_tlsext_early(SSL *s, const PACKET *ext,
2016 const PACKET *session_id,
2019 __owur int tls12_get_sigandhash(unsigned char *p, const EVP_PKEY *pk,
2021 __owur int tls12_get_sigid(const EVP_PKEY *pk);
2022 __owur const EVP_MD *tls12_get_hash(unsigned char hash_alg);
2023 void ssl_set_sig_mask(uint32_t *pmask_a, SSL *s, int op);
2025 __owur int tls1_set_sigalgs_list(CERT *c, const char *str, int client);
2026 __owur int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen, int client);
2027 int tls1_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain,
2029 void tls1_set_cert_validity(SSL *s);
2031 # ifndef OPENSSL_NO_DH
2032 __owur DH *ssl_get_auto_dh(SSL *s);
2035 __owur int ssl_security_cert(SSL *s, SSL_CTX *ctx, X509 *x, int vfy, int is_ee);
2036 __owur int ssl_security_cert_chain(SSL *s, STACK_OF(X509) *sk, X509 *ex, int vfy);
2038 __owur EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md);
2039 void ssl_clear_hash_ctx(EVP_MD_CTX **hash);
2040 __owur int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
2042 __owur int ssl_parse_serverhello_renegotiate_ext(SSL *s, PACKET *pkt,
2044 __owur int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len,
2046 __owur int ssl_parse_clienthello_renegotiate_ext(SSL *s, PACKET *pkt, int *al);
2047 __owur long ssl_get_algorithm2(SSL *s);
2048 __owur size_t tls12_copy_sigalgs(SSL *s, unsigned char *out,
2049 const unsigned char *psig, size_t psiglen);
2050 __owur int tls1_save_sigalgs(SSL *s, const unsigned char *data, int dsize);
2051 __owur int tls1_process_sigalgs(SSL *s);
2052 __owur size_t tls12_get_psigalgs(SSL *s, const unsigned char **psigs);
2053 __owur int tls12_check_peer_sigalg(const EVP_MD **pmd, SSL *s,
2054 const unsigned char *sig, EVP_PKEY *pkey);
2055 void ssl_set_client_disabled(SSL *s);
2056 __owur int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c, int op);
2058 __owur int ssl_add_clienthello_use_srtp_ext(SSL *s, unsigned char *p, int *len,
2060 __owur int ssl_parse_clienthello_use_srtp_ext(SSL *s, PACKET *pkt, int *al);
2061 __owur int ssl_add_serverhello_use_srtp_ext(SSL *s, unsigned char *p, int *len,
2063 __owur int ssl_parse_serverhello_use_srtp_ext(SSL *s, PACKET *pkt, int *al);
2065 __owur int ssl_handshake_hash(SSL *s, unsigned char *out, int outlen);
2066 __owur const EVP_MD *ssl_md(int idx);
2067 __owur const EVP_MD *ssl_handshake_md(SSL *s);
2068 __owur const EVP_MD *ssl_prf_md(SSL *s);
2071 __owur char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx);
2072 __owur int ssl3_cbc_digest_record(const EVP_MD_CTX *ctx,
2073 unsigned char *md_out,
2074 size_t *md_out_size,
2075 const unsigned char header[13],
2076 const unsigned char *data,
2077 size_t data_plus_mac_size,
2078 size_t data_plus_mac_plus_padding_size,
2079 const unsigned char *mac_secret,
2080 unsigned mac_secret_length, char is_sslv3);
2082 void tls_fips_digest_extra(const EVP_CIPHER_CTX *cipher_ctx,
2083 EVP_MD_CTX *mac_ctx, const unsigned char *data,
2084 size_t data_len, size_t orig_len);
2086 __owur int srp_generate_server_master_secret(SSL *s);
2087 __owur int srp_generate_client_master_secret(SSL *s);
2088 __owur int srp_verify_server_param(SSL *s, int *al);
2092 void custom_ext_init(custom_ext_methods *meths);
2094 __owur int custom_ext_parse(SSL *s, int server,
2095 unsigned int ext_type,
2096 const unsigned char *ext_data, size_t ext_size, int *al);
2097 __owur int custom_ext_add(SSL *s, int server,
2098 unsigned char **pret, unsigned char *limit, int *al);
2100 __owur int custom_exts_copy(custom_ext_methods *dst, const custom_ext_methods *src);
2101 void custom_exts_free(custom_ext_methods *exts);
2105 # define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer
2106 # define ssl3_setup_buffers SSL_test_functions()->p_ssl3_setup_buffers
2107 # define tls1_process_heartbeat SSL_test_functions()->p_tls1_process_heartbeat
2108 # define dtls1_process_heartbeat SSL_test_functions()->p_dtls1_process_heartbeat