]> git.ipfire.org Git - thirdparty/openssl.git/blame - ssl/ssl_locl.h
Provide a test for the Encrypt-Then-Mac renegotiation crash
[thirdparty/openssl.git] / ssl / ssl_locl.h
CommitLineData
846e33c7
RS
1/*
2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
5a4fbc69 3 *
846e33c7
RS
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
5a4fbc69 8 */
846e33c7 9
ea262260
BM
10/* ====================================================================
11 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
0f113f3e 12 * ECC cipher suite support in OpenSSL originally developed by
ea262260
BM
13 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
14 */
ddac1974
NL
15/* ====================================================================
16 * Copyright 2005 Nokia. All rights reserved.
17 *
18 * The portions of the attached software ("Contribution") is developed by
19 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
20 * license.
21 *
22 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
23 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
24 * support (see RFC 4279) to OpenSSL.
25 *
26 * No patent licenses or other rights except those expressly stated in
27 * the OpenSSL open source license shall be deemed granted or received
28 * expressly, by implication, estoppel, or otherwise.
29 *
30 * No assurances are provided by Nokia that the Contribution does not
31 * infringe the patent or other intellectual property rights of any third
32 * party or that the license provides you with all the necessary rights
33 * to make use of the Contribution.
34 *
35 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
36 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
37 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
38 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
39 * OTHERWISE.
40 */
d02b48c6
RE
41
42#ifndef HEADER_SSL_LOCL_H
0f113f3e
MC
43# define HEADER_SSL_LOCL_H
44# include <stdlib.h>
45# include <time.h>
46# include <string.h>
47# include <errno.h>
d02b48c6 48
0f113f3e 49# include "e_os.h"
c21c7830 50# if defined(__unix) || defined(__unix__)
a230b26e 51# include <sys/time.h> /* struct timeval for DTLS */
c21c7830 52# endif
d02b48c6 53
0f113f3e 54# include <openssl/buffer.h>
3c27208f 55# include <openssl/comp.h>
0f113f3e
MC
56# include <openssl/bio.h>
57# include <openssl/stack.h>
3c27208f
RS
58# include <openssl/rsa.h>
59# include <openssl/dsa.h>
0f113f3e
MC
60# include <openssl/err.h>
61# include <openssl/ssl.h>
07bbc92c 62# include <openssl/async.h>
0f113f3e 63# include <openssl/symhacks.h>
3c27208f 64# include <openssl/ct.h>
a230b26e
EK
65# include "record/record.h"
66# include "statem/statem.h"
67# include "packet_locl.h"
68# include "internal/dane.h"
2f545ae4 69# include "internal/refcount.h"
52e1d7b1 70
0f113f3e
MC
71# ifdef OPENSSL_BUILD_SHLIBSSL
72# undef OPENSSL_EXTERN
73# define OPENSSL_EXTERN OPENSSL_EXPORT
74# endif
26da3e65 75
0f113f3e 76# undef PKCS1_CHECK
d02b48c6 77
0f113f3e
MC
78# define c2l(c,l) (l = ((unsigned long)(*((c)++))) , \
79 l|=(((unsigned long)(*((c)++)))<< 8), \
80 l|=(((unsigned long)(*((c)++)))<<16), \
81 l|=(((unsigned long)(*((c)++)))<<24))
d02b48c6
RE
82
83/* NOTE - c is not incremented as per c2l */
0f113f3e
MC
84# define c2ln(c,l1,l2,n) { \
85 c+=n; \
86 l1=l2=0; \
87 switch (n) { \
88 case 8: l2 =((unsigned long)(*(--(c))))<<24; \
89 case 7: l2|=((unsigned long)(*(--(c))))<<16; \
90 case 6: l2|=((unsigned long)(*(--(c))))<< 8; \
91 case 5: l2|=((unsigned long)(*(--(c)))); \
92 case 4: l1 =((unsigned long)(*(--(c))))<<24; \
93 case 3: l1|=((unsigned long)(*(--(c))))<<16; \
94 case 2: l1|=((unsigned long)(*(--(c))))<< 8; \
95 case 1: l1|=((unsigned long)(*(--(c)))); \
96 } \
97 }
98
99# define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \
100 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
101 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
102 *((c)++)=(unsigned char)(((l)>>24)&0xff))
103
104# define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24, \
105 l|=((unsigned long)(*((c)++)))<<16, \
106 l|=((unsigned long)(*((c)++)))<< 8, \
107 l|=((unsigned long)(*((c)++))))
108
31c34a3e
DW
109# define n2l8(c,l) (l =((uint64_t)(*((c)++)))<<56, \
110 l|=((uint64_t)(*((c)++)))<<48, \
111 l|=((uint64_t)(*((c)++)))<<40, \
112 l|=((uint64_t)(*((c)++)))<<32, \
113 l|=((uint64_t)(*((c)++)))<<24, \
114 l|=((uint64_t)(*((c)++)))<<16, \
115 l|=((uint64_t)(*((c)++)))<< 8, \
116 l|=((uint64_t)(*((c)++))))
117
118
0f113f3e
MC
119# define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24)&0xff), \
120 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
121 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
122 *((c)++)=(unsigned char)(((l) )&0xff))
123
124# define l2n6(l,c) (*((c)++)=(unsigned char)(((l)>>40)&0xff), \
125 *((c)++)=(unsigned char)(((l)>>32)&0xff), \
126 *((c)++)=(unsigned char)(((l)>>24)&0xff), \
127 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
128 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
129 *((c)++)=(unsigned char)(((l) )&0xff))
130
131# define l2n8(l,c) (*((c)++)=(unsigned char)(((l)>>56)&0xff), \
132 *((c)++)=(unsigned char)(((l)>>48)&0xff), \
133 *((c)++)=(unsigned char)(((l)>>40)&0xff), \
134 *((c)++)=(unsigned char)(((l)>>32)&0xff), \
135 *((c)++)=(unsigned char)(((l)>>24)&0xff), \
136 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
137 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
138 *((c)++)=(unsigned char)(((l) )&0xff))
139
d02b48c6 140/* NOTE - c is not incremented as per l2c */
0f113f3e
MC
141# define l2cn(l1,l2,c,n) { \
142 c+=n; \
143 switch (n) { \
144 case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
145 case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
146 case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
147 case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \
148 case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
149 case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
150 case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
151 case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \
152 } \
153 }
154
d4450e4b
MC
155# define n2s(c,s) ((s=(((unsigned int)((c)[0]))<< 8)| \
156 (((unsigned int)((c)[1])) )),(c)+=2)
157# define s2n(s,c) (((c)[0]=(unsigned char)(((s)>> 8)&0xff), \
158 (c)[1]=(unsigned char)(((s) )&0xff)),(c)+=2)
159
160# define n2l3(c,l) ((l =(((unsigned long)((c)[0]))<<16)| \
161 (((unsigned long)((c)[1]))<< 8)| \
162 (((unsigned long)((c)[2])) )),(c)+=3)
163
164# define l2n3(l,c) (((c)[0]=(unsigned char)(((l)>>16)&0xff), \
165 (c)[1]=(unsigned char)(((l)>> 8)&0xff), \
166 (c)[2]=(unsigned char)(((l) )&0xff)),(c)+=3)
d02b48c6 167
a230b26e
EK
168/*
169 * DTLS version numbers are strange because they're inverted. Except for
170 * DTLS1_BAD_VER, which should be considered "lower" than the rest.
171 */
172# define dtls_ver_ordinal(v1) (((v1) == DTLS1_BAD_VER) ? 0xff00 : (v1))
173# define DTLS_VERSION_GT(v1, v2) (dtls_ver_ordinal(v1) < dtls_ver_ordinal(v2))
174# define DTLS_VERSION_GE(v1, v2) (dtls_ver_ordinal(v1) <= dtls_ver_ordinal(v2))
175# define DTLS_VERSION_LT(v1, v2) (dtls_ver_ordinal(v1) > dtls_ver_ordinal(v2))
176# define DTLS_VERSION_LE(v1, v2) (dtls_ver_ordinal(v1) >= dtls_ver_ordinal(v2))
7946ab33 177
d02b48c6
RE
178/* LOCAL STUFF */
179
0f113f3e
MC
180# define SSL_DECRYPT 0
181# define SSL_ENCRYPT 1
d02b48c6 182
0f113f3e
MC
183# define TWO_BYTE_BIT 0x80
184# define SEC_ESC_BIT 0x40
185# define TWO_BYTE_MASK 0x7fff
186# define THREE_BYTE_MASK 0x3fff
d02b48c6 187
0f113f3e
MC
188# define INC32(a) ((a)=((a)+1)&0xffffffffL)
189# define DEC32(a) ((a)=((a)-1)&0xffffffffL)
190# define MAX_MAC_SIZE 20 /* up from 16 for SSLv3 */
d02b48c6 191
018e57c7
DSH
192/*
193 * Define the Bitmasks for SSL_CIPHER.algorithms.
194 * This bits are used packed as dense as possible. If new methods/ciphers
195 * etc will be added, the bits a likely to change, so this information
196 * is for internal library use only, even though SSL_CIPHER.algorithms
197 * can be publicly accessed.
198 * Use the according functions for cipher management instead.
199 *
657e60fa 200 * The bit mask handling in the selection and sorting scheme in
018e57c7 201 * ssl_create_cipher_list() has only limited capabilities, reflecting
657e60fa 202 * that the different entities within are mutually exclusive:
018e57c7
DSH
203 * ONLY ONE BIT PER MASK CAN BE SET AT A TIME.
204 */
52b8dad8
BM
205
206/* Bits for algorithm_mkey (key exchange algorithm) */
68d39f3c 207/* RSA key exchange */
36e79832 208# define SSL_kRSA 0x00000001U
68d39f3c 209/* tmp DH key no DH cert */
bc71f910 210# define SSL_kDHE 0x00000002U
68d39f3c 211/* synonym */
0f113f3e 212# define SSL_kEDH SSL_kDHE
68d39f3c 213/* ephemeral ECDH */
ce0c1f2b 214# define SSL_kECDHE 0x00000004U
68d39f3c 215/* synonym */
0f113f3e 216# define SSL_kEECDH SSL_kECDHE
68d39f3c 217/* PSK */
ce0c1f2b 218# define SSL_kPSK 0x00000008U
68d39f3c 219/* GOST key exchange */
ce0c1f2b 220# define SSL_kGOST 0x00000010U
68d39f3c 221/* SRP */
ce0c1f2b 222# define SSL_kSRP 0x00000020U
52b8dad8 223
ce0c1f2b
DSH
224# define SSL_kRSAPSK 0x00000040U
225# define SSL_kECDHEPSK 0x00000080U
226# define SSL_kDHEPSK 0x00000100U
64651d39
DSH
227
228/* all PSK */
229
a230b26e 230# define SSL_PSK (SSL_kPSK | SSL_kRSAPSK | SSL_kECDHEPSK | SSL_kDHEPSK)
64651d39 231
e5c4bf93
DSH
232/* Any appropriate key exchange algorithm (for TLS 1.3 ciphersuites) */
233# define SSL_kANY 0x00000000U
234
52b8dad8 235/* Bits for algorithm_auth (server authentication) */
68d39f3c 236/* RSA auth */
36e79832 237# define SSL_aRSA 0x00000001U
68d39f3c 238/* DSS auth */
36e79832 239# define SSL_aDSS 0x00000002U
68d39f3c 240/* no auth (i.e. use ADH or AECDH) */
36e79832 241# define SSL_aNULL 0x00000004U
68d39f3c 242/* ECDSA auth*/
ce0c1f2b 243# define SSL_aECDSA 0x00000008U
68d39f3c 244/* PSK auth */
ce0c1f2b 245# define SSL_aPSK 0x00000010U
68d39f3c 246/* GOST R 34.10-2001 signature auth */
ce0c1f2b 247# define SSL_aGOST01 0x00000020U
68d39f3c 248/* SRP auth */
ce0c1f2b 249# define SSL_aSRP 0x00000040U
e44380a9 250/* GOST R 34.10-2012 signature auth */
ce0c1f2b 251# define SSL_aGOST12 0x00000080U
e5c4bf93
DSH
252/* Any appropriate signature auth (for TLS 1.3 ciphersuites) */
253# define SSL_aANY 0x00000000U
52b8dad8
BM
254
255/* Bits for algorithm_enc (symmetric encryption) */
36e79832
DSH
256# define SSL_DES 0x00000001U
257# define SSL_3DES 0x00000002U
258# define SSL_RC4 0x00000004U
259# define SSL_RC2 0x00000008U
260# define SSL_IDEA 0x00000010U
261# define SSL_eNULL 0x00000020U
262# define SSL_AES128 0x00000040U
263# define SSL_AES256 0x00000080U
264# define SSL_CAMELLIA128 0x00000100U
265# define SSL_CAMELLIA256 0x00000200U
266# define SSL_eGOST2814789CNT 0x00000400U
267# define SSL_SEED 0x00000800U
268# define SSL_AES128GCM 0x00001000U
269# define SSL_AES256GCM 0x00002000U
270# define SSL_AES128CCM 0x00004000U
271# define SSL_AES256CCM 0x00008000U
272# define SSL_AES128CCM8 0x00010000U
273# define SSL_AES256CCM8 0x00020000U
e44380a9 274# define SSL_eGOST2814789CNT12 0x00040000U
a76ba82c 275# define SSL_CHACHA20POLY1305 0x00080000U
0f113f3e 276
a556f342
EK
277# define SSL_AESGCM (SSL_AES128GCM | SSL_AES256GCM)
278# define SSL_AESCCM (SSL_AES128CCM | SSL_AES256CCM | SSL_AES128CCM8 | SSL_AES256CCM8)
279# define SSL_AES (SSL_AES128|SSL_AES256|SSL_AESGCM|SSL_AESCCM)
0f113f3e 280# define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256)
1c37fd96 281# define SSL_CHACHA20 (SSL_CHACHA20POLY1305)
52b8dad8
BM
282
283/* Bits for algorithm_mac (symmetric authentication) */
28dd49fa 284
36e79832
DSH
285# define SSL_MD5 0x00000001U
286# define SSL_SHA1 0x00000002U
287# define SSL_GOST94 0x00000004U
288# define SSL_GOST89MAC 0x00000008U
289# define SSL_SHA256 0x00000010U
290# define SSL_SHA384 0x00000020U
28dd49fa 291/* Not a real MAC, just an indication it is part of cipher */
36e79832 292# define SSL_AEAD 0x00000040U
e44380a9
DB
293# define SSL_GOST12_256 0x00000080U
294# define SSL_GOST89MAC12 0x00000100U
295# define SSL_GOST12_512 0x00000200U
52b8dad8 296
0f113f3e 297/*
e44380a9 298 * When adding new digest in the ssl_ciph.c and increment SSL_MD_NUM_IDX make
0f113f3e
MC
299 * sure to update this constant too
300 */
28ba2541
DSH
301
302# define SSL_MD_MD5_IDX 0
303# define SSL_MD_SHA1_IDX 1
304# define SSL_MD_GOST94_IDX 2
305# define SSL_MD_GOST89MAC_IDX 3
306# define SSL_MD_SHA256_IDX 4
307# define SSL_MD_SHA384_IDX 5
308# define SSL_MD_GOST12_256_IDX 6
309# define SSL_MD_GOST89MAC12_IDX 7
310# define SSL_MD_GOST12_512_IDX 8
311# define SSL_MD_MD5_SHA1_IDX 9
7afd2312
DSH
312# define SSL_MD_SHA224_IDX 10
313# define SSL_MD_SHA512_IDX 11
314# define SSL_MAX_DIGEST 12
28ba2541
DSH
315
316/* Bits for algorithm2 (handshake digests and other extra flags) */
317
318/* Bits 0-7 are handshake MAC */
319# define SSL_HANDSHAKE_MAC_MASK 0xFF
320# define SSL_HANDSHAKE_MAC_MD5_SHA1 SSL_MD_MD5_SHA1_IDX
321# define SSL_HANDSHAKE_MAC_SHA256 SSL_MD_SHA256_IDX
322# define SSL_HANDSHAKE_MAC_SHA384 SSL_MD_SHA384_IDX
323# define SSL_HANDSHAKE_MAC_GOST94 SSL_MD_GOST94_IDX
324# define SSL_HANDSHAKE_MAC_GOST12_256 SSL_MD_GOST12_256_IDX
325# define SSL_HANDSHAKE_MAC_GOST12_512 SSL_MD_GOST12_512_IDX
326# define SSL_HANDSHAKE_MAC_DEFAULT SSL_HANDSHAKE_MAC_MD5_SHA1
327
328/* Bits 8-15 bits are PRF */
329# define TLS1_PRF_DGST_SHIFT 8
330# define TLS1_PRF_SHA1_MD5 (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
331# define TLS1_PRF_SHA256 (SSL_MD_SHA256_IDX << TLS1_PRF_DGST_SHIFT)
332# define TLS1_PRF_SHA384 (SSL_MD_SHA384_IDX << TLS1_PRF_DGST_SHIFT)
333# define TLS1_PRF_GOST94 (SSL_MD_GOST94_IDX << TLS1_PRF_DGST_SHIFT)
334# define TLS1_PRF_GOST12_256 (SSL_MD_GOST12_256_IDX << TLS1_PRF_DGST_SHIFT)
335# define TLS1_PRF_GOST12_512 (SSL_MD_GOST12_512_IDX << TLS1_PRF_DGST_SHIFT)
336# define TLS1_PRF (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT)
761772d7 337
0f113f3e
MC
338/*
339 * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also
340 * goes into algorithm2)
341 */
28ba2541 342# define TLS1_STREAM_MAC 0x10000
761772d7 343
88a9614b 344# define SSL_STRONG_MASK 0x0000001FU
361a1191 345# define SSL_DEFAULT_MASK 0X00000020U
c84f7f4a 346
361a1191
KR
347# define SSL_STRONG_NONE 0x00000001U
348# define SSL_LOW 0x00000002U
349# define SSL_MEDIUM 0x00000004U
350# define SSL_HIGH 0x00000008U
351# define SSL_FIPS 0x00000010U
352# define SSL_NOT_DEFAULT 0x00000020U
018e57c7 353
361a1191 354/* we have used 0000003f - 26 bits left to go */
d02b48c6 355
34f7245b
MC
356/* Flag used on OpenSSL ciphersuite ids to indicate they are for SSLv3+ */
357# define SSL3_CK_CIPHERSUITE_FLAG 0x03000000
358
890f2f8b 359/* Check if an SSL structure is using DTLS */
0f113f3e 360# define SSL_IS_DTLS(s) (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS)
f2342b7a
MC
361
362/* Check if we are using TLSv1.3 */
c805f618
MC
363# define SSL_IS_TLS13(s) (!SSL_IS_DTLS(s) \
364 && (s)->method->version >= TLS1_3_VERSION \
365 && (s)->method->version != TLS_ANY_VERSION)
f2342b7a 366
c7f47786
MC
367# define SSL_IS_FIRST_HANDSHAKE(S) ((s)->s3->tmp.finish_md_len == 0)
368
cbd64894 369/* See if we need explicit IV */
0f113f3e
MC
370# define SSL_USE_EXPLICIT_IV(s) \
371 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV)
372/*
373 * See if we use signature algorithms extension and signature algorithm
374 * before signatures.
cbd64894 375 */
0f113f3e
MC
376# define SSL_USE_SIGALGS(s) \
377 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS)
378/*
379 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
380 * apply to others in future.
4221c0dd 381 */
0f113f3e
MC
382# define SSL_USE_TLS1_2_CIPHERS(s) \
383 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)
384/*
385 * Determine if a client can use TLS 1.2 ciphersuites: can't rely on method
1e2d4cb0
DSH
386 * flags because it may not be set to correct version yet.
387 */
0f113f3e 388# define SSL_CLIENT_USE_TLS1_2_CIPHERS(s) \
4fa52141
VD
389 ((!SSL_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION) || \
390 (SSL_IS_DTLS(s) && DTLS_VERSION_GE(s->client_version, DTLS1_2_VERSION)))
f7aa3185
DB
391/*
392 * Determine if a client should send signature algorithms extension:
393 * as with TLS1.2 cipher we can't rely on method flags.
394 */
395# define SSL_CLIENT_USE_SIGALGS(s) \
396 SSL_CLIENT_USE_TLS1_2_CIPHERS(s)
0f113f3e 397
a230b26e 398# define SSL_USE_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC)
5e3ff62c 399
d02b48c6 400/* Mostly for SSLv3 */
d0ff28f8
DSH
401# define SSL_PKEY_RSA 0
402# define SSL_PKEY_DSA_SIGN 1
403# define SSL_PKEY_ECC 2
404# define SSL_PKEY_GOST01 3
405# define SSL_PKEY_GOST12_256 4
406# define SSL_PKEY_GOST12_512 5
407# define SSL_PKEY_NUM 6
e44380a9
DB
408/*
409 * Pseudo-constant. GOST cipher suites can use different certs for 1
410 * SSL_CIPHER. So let's see which one we have in fact.
411 */
412# define SSL_PKEY_GOST_EC SSL_PKEY_NUM+1
d02b48c6 413
17ae384e 414/*
d0ff28f8 415 * TODO(TLS1.3) for now use SSL_PKEY_RSA keys for PSS
17ae384e
DSH
416 */
417
d0ff28f8 418#define SSL_PKEY_RSA_PSS_SIGN SSL_PKEY_RSA
17ae384e 419
1d97c843 420/*-
361a1191 421 * SSL_kRSA <- RSA_ENC
d02b48c6 422 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
5a21cadb 423 * SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN
d02b48c6
RE
424 * SSL_aRSA <- RSA_ENC | RSA_SIGN
425 * SSL_aDSS <- DSA_SIGN
426 */
427
23a22b4c 428/*-
0f113f3e
MC
429#define CERT_INVALID 0
430#define CERT_PUBLIC_KEY 1
431#define CERT_PRIVATE_KEY 2
d02b48c6
RE
432*/
433
e9fa092e 434/* CipherSuite length. SSLv3 and all TLS versions. */
a230b26e 435# define TLS_CIPHER_LEN 2
b6ba4014
MC
436/* used to hold info on the particular ciphers used */
437struct ssl_cipher_st {
90d9e49a 438 uint32_t valid;
a230b26e
EK
439 const char *name; /* text name */
440 uint32_t id; /* id, 4 bytes, first is version */
b6ba4014 441 /*
90d9e49a 442 * changed in 1.0.0: these four used to be portions of a single value
b6ba4014
MC
443 * 'algorithms'
444 */
a230b26e
EK
445 uint32_t algorithm_mkey; /* key exchange algorithm */
446 uint32_t algorithm_auth; /* server authentication */
447 uint32_t algorithm_enc; /* symmetric encryption */
448 uint32_t algorithm_mac; /* symmetric authentication */
449 int min_tls; /* minimum SSL/TLS protocol version */
450 int max_tls; /* maximum SSL/TLS protocol version */
451 int min_dtls; /* minimum DTLS protocol version */
452 int max_dtls; /* maximum DTLS protocol version */
453 uint32_t algo_strength; /* strength and export flags */
454 uint32_t algorithm2; /* Extra flags */
455 int32_t strength_bits; /* Number of bits really used */
456 uint32_t alg_bits; /* Number of bits for algorithm */
b6ba4014
MC
457};
458
87d9cafa 459/* Used to hold SSL/TLS functions */
b6ba4014
MC
460struct ssl_method_st {
461 int version;
4fa52141
VD
462 unsigned flags;
463 unsigned long mask;
b6ba4014
MC
464 int (*ssl_new) (SSL *s);
465 void (*ssl_clear) (SSL *s);
466 void (*ssl_free) (SSL *s);
467 int (*ssl_accept) (SSL *s);
468 int (*ssl_connect) (SSL *s);
54105ddd
MC
469 int (*ssl_read) (SSL *s, void *buf, size_t len, size_t *readbytes);
470 int (*ssl_peek) (SSL *s, void *buf, size_t len, size_t *readbytes);
7ee8627f 471 int (*ssl_write) (SSL *s, const void *buf, size_t len, size_t *written);
b6ba4014
MC
472 int (*ssl_shutdown) (SSL *s);
473 int (*ssl_renegotiate) (SSL *s);
c7f47786 474 int (*ssl_renegotiate_check) (SSL *s, int);
657da85e 475 int (*ssl_read_bytes) (SSL *s, int type, int *recvd_type,
eda75751 476 unsigned char *buf, size_t len, int peek,
54105ddd 477 size_t *readbytes);
7ee8627f
MC
478 int (*ssl_write_bytes) (SSL *s, int type, const void *buf_, size_t len,
479 size_t *written);
b6ba4014
MC
480 int (*ssl_dispatch_alert) (SSL *s);
481 long (*ssl_ctrl) (SSL *s, int cmd, long larg, void *parg);
482 long (*ssl_ctx_ctrl) (SSL_CTX *ctx, int cmd, long larg, void *parg);
483 const SSL_CIPHER *(*get_cipher_by_char) (const unsigned char *ptr);
ae2f7b37 484 int (*put_cipher_by_char) (const SSL_CIPHER *cipher, WPACKET *pkt,
2c7b4dbc 485 size_t *len);
8b0e934a 486 size_t (*ssl_pending) (const SSL *s);
b6ba4014
MC
487 int (*num_ciphers) (void);
488 const SSL_CIPHER *(*get_cipher) (unsigned ncipher);
b6ba4014
MC
489 long (*get_timeout) (void);
490 const struct ssl3_enc_method *ssl3_enc; /* Extra SSLv3/TLS stuff */
491 int (*ssl_version) (void);
492 long (*ssl_callback_ctrl) (SSL *s, int cb_id, void (*fp) (void));
493 long (*ssl_ctx_callback_ctrl) (SSL_CTX *s, int cb_id, void (*fp) (void));
494};
495
496/*-
497 * Lets make this into an ASN.1 type structure as follows
498 * SSL_SESSION_ID ::= SEQUENCE {
499 * version INTEGER, -- structure version number
500 * SSLversion INTEGER, -- SSL version number
501 * Cipher OCTET STRING, -- the 3 byte cipher ID
502 * Session_ID OCTET STRING, -- the Session ID
503 * Master_key OCTET STRING, -- the master key
b6ba4014
MC
504 * Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument
505 * Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time
506 * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds
507 * Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate
508 * Session_ID_context [ 4 ] EXPLICIT OCTET STRING, -- the Session ID context
509 * Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer'
510 * HostName [ 6 ] EXPLICIT OCTET STRING, -- optional HostName from servername TLS extension
511 * PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint
512 * PSK_identity [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity
513 * Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket
514 * Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only)
515 * Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method
516 * SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username
6f152a15 517 * flags [ 13 ] EXPLICIT INTEGER -- optional flags
b6ba4014
MC
518 * }
519 * Look in ssl/ssl_asn1.c for more details
520 * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-).
521 */
522struct ssl_session_st {
a230b26e
EK
523 int ssl_version; /* what ssl version session info is being kept
524 * in here? */
8c1a5343 525 size_t master_key_length;
ec15acb6
MC
526
527 /*
528 * For <=TLS1.2 this is the master_key. For TLS1.3 this is the resumption
529 * master secret
530 */
1a3392c8 531 unsigned char master_key[TLS13_MAX_RESUMPTION_MASTER_LENGTH];
b6ba4014 532 /* session_id - valid? */
ec60ccc1 533 size_t session_id_length;
b6ba4014
MC
534 unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
535 /*
536 * this is used to determine whether the session is being reused in the
537 * appropriate context. It is up to the application to set this, via
538 * SSL_new
539 */
ec60ccc1 540 size_t sid_ctx_length;
b6ba4014 541 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
b6ba4014
MC
542# ifndef OPENSSL_NO_PSK
543 char *psk_identity_hint;
544 char *psk_identity;
545# endif
546 /*
547 * Used to indicate that session resumption is not allowed. Applications
548 * can also set this bit for a new session via not_resumable_session_cb
549 * to disable session caching and tickets.
550 */
551 int not_resumable;
a273c6ee 552 /* This is the cert and type for the other end. */
b6ba4014 553 X509 *peer;
a273c6ee 554 int peer_type;
696178ed 555 /* Certificate chain peer sent */
c34b0f99 556 STACK_OF(X509) *peer_chain;
b6ba4014
MC
557 /*
558 * when app_verify_callback accepts a session where the peer's
559 * certificate is not ok, we must remember the error for session reuse:
560 */
561 long verify_result; /* only for servers */
2f545ae4 562 CRYPTO_REF_COUNT references;
b6ba4014
MC
563 long timeout;
564 long time;
565 unsigned int compress_meth; /* Need to lookup the method */
566 const SSL_CIPHER *cipher;
a230b26e
EK
567 unsigned long cipher_id; /* when ASN.1 loaded, this needs to be used to
568 * load the 'cipher' structure */
b6ba4014
MC
569 STACK_OF(SSL_CIPHER) *ciphers; /* shared ciphers? */
570 CRYPTO_EX_DATA ex_data; /* application specific data */
571 /*
572 * These are used to make removal of session-ids more efficient and to
573 * implement a maximum cache size.
574 */
575 struct ssl_session_st *prev, *next;
aff8c126
RS
576
577 struct {
578 char *hostname;
e481f9b9 579# ifndef OPENSSL_NO_EC
aff8c126
RS
580 size_t ecpointformats_len;
581 unsigned char *ecpointformats; /* peer's list */
582 size_t supportedgroups_len;
583 unsigned char *supportedgroups; /* peer's list */
a230b26e 584# endif /* OPENSSL_NO_EC */
b6ba4014 585 /* RFC4507 info */
aff8c126
RS
586 unsigned char *tick; /* Session ticket */
587 size_t ticklen; /* Session ticket length */
588 /* Session lifetime hint in seconds */
589 unsigned long tick_lifetime_hint;
fc24f0bf 590 uint32_t tick_age_add;
ec15acb6 591 int tick_identity;
aff8c126 592 } ext;
b6ba4014
MC
593# ifndef OPENSSL_NO_SRP
594 char *srp_username;
595# endif
f7d53487 596 uint32_t flags;
16203f7b 597 CRYPTO_RWLOCK *lock;
b6ba4014
MC
598};
599
6f152a15 600/* Extended master secret support */
a230b26e 601# define SSL_SESS_FLAG_EXTMS 0x1
b6ba4014
MC
602
603# ifndef OPENSSL_NO_SRP
604
605typedef struct srp_ctx_st {
606 /* param for all the callbacks */
607 void *SRP_cb_arg;
608 /* set client Hello login callback */
609 int (*TLS_ext_srp_username_callback) (SSL *, int *, void *);
610 /* set SRP N/g param callback for verification */
611 int (*SRP_verify_param_callback) (SSL *, void *);
612 /* set SRP client passwd callback */
613 char *(*SRP_give_srp_client_pwd_callback) (SSL *, void *);
614 char *login;
615 BIGNUM *N, *g, *s, *B, *A;
616 BIGNUM *a, *b, *v;
617 char *info;
618 int strength;
619 unsigned long srp_Mask;
620} SRP_CTX;
621
622# endif
623
b6ba4014
MC
624struct ssl_comp_st {
625 int id;
626 const char *name;
b6ba4014 627 COMP_METHOD *method;
b6ba4014
MC
628};
629
89d6aa10 630DEFINE_LHASH_OF(SSL_SESSION);
ce023e77
VD
631/* Needed in ssl_cert.c */
632DEFINE_LHASH_OF(X509_NAME);
f8e0a557 633
a230b26e 634# define TLSEXT_KEYNAME_LENGTH 16
d139723b 635
b6ba4014
MC
636struct ssl_ctx_st {
637 const SSL_METHOD *method;
638 STACK_OF(SSL_CIPHER) *cipher_list;
639 /* same as above but sorted for lookup */
640 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
641 struct x509_store_st /* X509_STORE */ *cert_store;
642 LHASH_OF(SSL_SESSION) *sessions;
643 /*
644 * Most session-ids that will be cached, default is
645 * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited.
646 */
cb150cbc 647 size_t session_cache_size;
b6ba4014
MC
648 struct ssl_session_st *session_cache_head;
649 struct ssl_session_st *session_cache_tail;
650 /*
651 * This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT,
652 * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which
653 * means only SSL_accept which cache SSL_SESSIONS.
654 */
f7d53487 655 uint32_t session_cache_mode;
b6ba4014
MC
656 /*
657 * If timeout is not 0, it is the default timeout value set when
658 * SSL_new() is called. This has been put in to make life easier to set
659 * things up
660 */
661 long session_timeout;
662 /*
663 * If this callback is not null, it will be called each time a session id
664 * is added to the cache. If this function returns 1, it means that the
665 * callback will do a SSL_SESSION_free() when it has finished using it.
666 * Otherwise, on 0, it means the callback has finished with it. If
667 * remove_session_cb is not null, it will be called when a session-id is
668 * removed from the cache. After the call, OpenSSL will
669 * SSL_SESSION_free() it.
670 */
671 int (*new_session_cb) (struct ssl_st *ssl, SSL_SESSION *sess);
672 void (*remove_session_cb) (struct ssl_ctx_st *ctx, SSL_SESSION *sess);
673 SSL_SESSION *(*get_session_cb) (struct ssl_st *ssl,
b6981744
EK
674 const unsigned char *data, int len,
675 int *copy);
b6ba4014
MC
676 struct {
677 int sess_connect; /* SSL new conn - started */
678 int sess_connect_renegotiate; /* SSL reneg - requested */
679 int sess_connect_good; /* SSL new conne/reneg - finished */
680 int sess_accept; /* SSL new accept - started */
681 int sess_accept_renegotiate; /* SSL reneg - requested */
682 int sess_accept_good; /* SSL accept/reneg - finished */
683 int sess_miss; /* session lookup misses */
684 int sess_timeout; /* reuse attempt on timeouted session */
685 int sess_cache_full; /* session removed due to full cache */
686 int sess_hit; /* session reuse actually done */
687 int sess_cb_hit; /* session-id that was not in the cache was
688 * passed back via the callback. This
a230b26e
EK
689 * indicates that the application is supplying
690 * session-id's from other processes - spooky
691 * :-) */
b6ba4014
MC
692 } stats;
693
2f545ae4 694 CRYPTO_REF_COUNT references;
b6ba4014
MC
695
696 /* if defined, these override the X509_verify_cert() calls */
697 int (*app_verify_callback) (X509_STORE_CTX *, void *);
698 void *app_verify_arg;
699 /*
700 * before OpenSSL 0.9.7, 'app_verify_arg' was ignored
701 * ('app_verify_callback' was called with just one argument)
702 */
703
704 /* Default password callback. */
705 pem_password_cb *default_passwd_callback;
706
707 /* Default password callback user data. */
708 void *default_passwd_callback_userdata;
709
710 /* get client cert callback */
711 int (*client_cert_cb) (SSL *ssl, X509 **x509, EVP_PKEY **pkey);
712
713 /* cookie generate callback */
714 int (*app_gen_cookie_cb) (SSL *ssl, unsigned char *cookie,
715 unsigned int *cookie_len);
716
717 /* verify cookie callback */
31011544 718 int (*app_verify_cookie_cb) (SSL *ssl, const unsigned char *cookie,
b6ba4014
MC
719 unsigned int cookie_len);
720
721 CRYPTO_EX_DATA ex_data;
722
723 const EVP_MD *md5; /* For SSLv3/TLSv1 'ssl3-md5' */
724 const EVP_MD *sha1; /* For SSLv3/TLSv1 'ssl3->sha1' */
725
726 STACK_OF(X509) *extra_certs;
727 STACK_OF(SSL_COMP) *comp_methods; /* stack of SSL_COMP, SSLv3/TLSv1 */
728
729 /* Default values used when no per-SSL value is defined follow */
730
731 /* used if SSL's info_callback is NULL */
732 void (*info_callback) (const SSL *ssl, int type, int val);
733
734 /* what we put in client cert requests */
735 STACK_OF(X509_NAME) *client_CA;
736
737 /*
738 * Default values to use in SSL structures follow (these are copied by
739 * SSL_new)
740 */
741
f7d53487
DSH
742 uint32_t options;
743 uint32_t mode;
7946ab33
KR
744 int min_proto_version;
745 int max_proto_version;
12472b45 746 size_t max_cert_list;
b6ba4014
MC
747
748 struct cert_st /* CERT */ *cert;
749 int read_ahead;
750
751 /* callback that allows applications to peek at protocol messages */
752 void (*msg_callback) (int write_p, int version, int content_type,
753 const void *buf, size_t len, SSL *ssl, void *arg);
754 void *msg_callback_arg;
755
f7d53487 756 uint32_t verify_mode;
ec60ccc1 757 size_t sid_ctx_length;
b6ba4014
MC
758 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
759 /* called 'verify_callback' in the SSL */
760 int (*default_verify_callback) (int ok, X509_STORE_CTX *ctx);
761
762 /* Default generate session ID callback. */
763 GEN_SESSION_CB generate_session_id;
764
765 X509_VERIFY_PARAM *param;
766
767 int quiet_shutdown;
768
a230b26e
EK
769# ifndef OPENSSL_NO_CT
770 CTLOG_STORE *ctlog_store; /* CT Log Store */
ed29e82a 771 /*
a230b26e
EK
772 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
773 * If they are not, the connection should be aborted.
774 */
43341433 775 ssl_ct_validation_cb ct_validation_callback;
ed29e82a 776 void *ct_validation_callback_arg;
a230b26e 777# endif
ed29e82a 778
d102d9df
MC
779 /*
780 * If we're using more than one pipeline how should we divide the data
781 * up between the pipes?
782 */
7ee8627f 783 size_t split_send_fragment;
b6ba4014
MC
784 /*
785 * Maximum amount of data to send in one fragment. actual record size can
786 * be more than this due to padding and MAC overheads.
787 */
7ee8627f 788 size_t max_send_fragment;
b6ba4014 789
d102d9df 790 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
7ee8627f 791 size_t max_pipelines;
d102d9df 792
dad78fb1
MC
793 /* The default read buffer length to use (0 means not set) */
794 size_t default_read_buf_len;
795
a230b26e 796# ifndef OPENSSL_NO_ENGINE
b6ba4014
MC
797 /*
798 * Engine to pass requests for client certs to
799 */
800 ENGINE *client_cert_engine;
a230b26e 801# endif
b6ba4014 802
aff8c126
RS
803 /* TLS extensions. */
804 struct {
805 /* TLS extensions servername callback */
806 int (*servername_cb) (SSL *, int *, void *);
807 void *servername_arg;
808 /* RFC 4507 session ticket keys */
809 unsigned char tick_key_name[TLSEXT_KEYNAME_LENGTH];
810 unsigned char tick_hmac_key[32];
811 unsigned char tick_aes_key[32];
812 /* Callback to support customisation of ticket key setting */
813 int (*ticket_key_cb) (SSL *ssl,
814 unsigned char *name, unsigned char *iv,
815 EVP_CIPHER_CTX *ectx, HMAC_CTX *hctx, int enc);
816
817 /* certificate status request info */
818 /* Callback for status request */
819 int (*status_cb) (SSL *ssl, void *arg);
820 void *status_arg;
821 /* ext status type used for CSR extension (OCSP Stapling) */
822 int status_type;
b6ba4014 823
aff8c126
RS
824# ifndef OPENSSL_NO_EC
825 /* EC extension values inherited by SSL structure */
826 size_t ecpointformats_len;
827 unsigned char *ecpointformats;
828 size_t supportedgroups_len;
829 unsigned char *supportedgroups;
830# endif /* OPENSSL_NO_EC */
b6ba4014 831
aff8c126
RS
832 /*
833 * ALPN information (we are in the process of transitioning from NPN to
834 * ALPN.)
835 */
b6ba4014
MC
836
837 /*-
838 * For a server, this contains a callback function that allows the
839 * server to select the protocol for the connection.
840 * out: on successful return, this must point to the raw protocol
841 * name (without the length prefix).
842 * outlen: on successful return, this contains the length of |*out|.
843 * in: points to the client's list of supported protocols in
844 * wire-format.
845 * inlen: the length of |in|.
846 */
aff8c126
RS
847 int (*alpn_select_cb) (SSL *s,
848 const unsigned char **out,
849 unsigned char *outlen,
850 const unsigned char *in,
851 unsigned int inlen, void *arg);
852 void *alpn_select_cb_arg;
b6ba4014 853
aff8c126
RS
854 /*
855 * For a client, this contains the list of supported protocols in wire
856 * format.
857 */
858 unsigned char *alpn;
859 size_t alpn_len;
860
e3bc1305 861# ifndef OPENSSL_NO_NEXTPROTONEG
aff8c126
RS
862 /* Next protocol negotiation information */
863
864 /*
865 * For a server, this contains a callback function by which the set of
866 * advertised protocols can be provided.
867 */
8cbfcc70 868 SSL_CTX_npn_advertised_cb_func npn_advertised_cb;
aff8c126
RS
869 void *npn_advertised_cb_arg;
870 /*
871 * For a client, this contains a callback function that selects the next
872 * protocol from the list provided by the server.
873 */
8cbfcc70 874 SSL_CTX_npn_select_cb_func npn_select_cb;
aff8c126
RS
875 void *npn_select_cb_arg;
876# endif
877 } ext;
878
879# ifndef OPENSSL_NO_PSK
8cbfcc70
RS
880 SSL_psk_client_cb_func psk_client_callback;
881 SSL_psk_server_cb_func psk_server_callback;
aff8c126
RS
882# endif
883
884# ifndef OPENSSL_NO_SRP
885 SRP_CTX srp_ctx; /* ctx for SRP authentication */
886# endif
b6ba4014 887
919ba009
VD
888 /* Shared DANE context */
889 struct dane_ctx_st dane;
890
b6ba4014
MC
891 /* SRTP profiles we are willing to do from RFC 5764 */
892 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
b6ba4014
MC
893 /*
894 * Callback for disabling session caching and ticket support on a session
895 * basis, depending on the chosen cipher.
896 */
897 int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure);
ba261f71 898
16203f7b 899 CRYPTO_RWLOCK *lock;
2faa1b48
CB
900
901 /*
902 * Callback for logging key material for use with debugging tools like
903 * Wireshark. The callback should log `line` followed by a newline.
904 */
905 SSL_CTX_keylog_cb_func keylog_callback;
b6ba4014
MC
906};
907
b6ba4014
MC
908struct ssl_st {
909 /*
910 * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION,
911 * DTLS1_VERSION)
912 */
913 int version;
b6ba4014
MC
914 /* SSLv3 */
915 const SSL_METHOD *method;
916 /*
917 * There are 2 BIO's even though they are normally both the same. This
918 * is so data can be read and written to different handlers
919 */
920 /* used by SSL_read */
921 BIO *rbio;
922 /* used by SSL_write */
923 BIO *wbio;
924 /* used during session-id reuse to concatenate messages */
925 BIO *bbio;
926 /*
927 * This holds a variable that indicates what we were doing when a 0 or -1
928 * is returned. This is needed for non-blocking IO so we know what
929 * request needs re-doing when in SSL_accept or SSL_connect
930 */
931 int rwstate;
b6ba4014
MC
932 int (*handshake_func) (SSL *);
933 /*
934 * Imagine that here's a boolean member "init" that is switched as soon
935 * as SSL_set_{accept/connect}_state is called for the first time, so
936 * that "state" and "handshake_func" are properly initialized. But as
937 * handshake_func is == 0 until then, we use this test instead of an
938 * "init" member.
939 */
23a635c0 940 /* are we the server side? */
b6ba4014
MC
941 int server;
942 /*
943 * Generate a new session or reuse an old one.
944 * NB: For servers, the 'new' session may actually be a previously
945 * cached session or even the previous session unless
946 * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set
947 */
948 int new_session;
949 /* don't send shutdown packets */
950 int quiet_shutdown;
951 /* we have shut things down, 0x01 sent, 0x02 for received */
952 int shutdown;
953 /* where we are */
d6f1a6e9 954 OSSL_STATEM statem;
b6ba4014
MC
955 BUF_MEM *init_buf; /* buffer used during init */
956 void *init_msg; /* pointer to handshake message body, set by
957 * ssl3_get_message() */
eda75751
MC
958 size_t init_num; /* amount read/written */
959 size_t init_off; /* amount read/written */
b6ba4014
MC
960 struct ssl3_state_st *s3; /* SSLv3 variables */
961 struct dtls1_state_st *d1; /* DTLSv1 variables */
b6ba4014
MC
962 /* callback that allows applications to peek at protocol messages */
963 void (*msg_callback) (int write_p, int version, int content_type,
964 const void *buf, size_t len, SSL *ssl, void *arg);
965 void *msg_callback_arg;
966 int hit; /* reusing a previous session */
967 X509_VERIFY_PARAM *param;
919ba009 968 /* Per connection DANE state */
b9aec69a 969 SSL_DANE dane;
b6ba4014
MC
970 /* crypto */
971 STACK_OF(SSL_CIPHER) *cipher_list;
972 STACK_OF(SSL_CIPHER) *cipher_list_by_id;
973 /*
974 * These are the ones being used, the ones in SSL_SESSION are the ones to
975 * be 'copied' into these ones
976 */
f7d53487 977 uint32_t mac_flags;
34574f19 978 /*
ec15acb6
MC
979 * The TLS1.3 secrets. The resumption master secret is stored in the
980 * session.
34574f19
MC
981 */
982 unsigned char early_secret[EVP_MAX_MD_SIZE];
983 unsigned char handshake_secret[EVP_MAX_MD_SIZE];
ec15acb6 984 unsigned char master_secret[EVP_MAX_MD_SIZE];
6484776f
MC
985 unsigned char client_finished_secret[EVP_MAX_MD_SIZE];
986 unsigned char server_finished_secret[EVP_MAX_MD_SIZE];
ace081c1 987 unsigned char server_finished_hash[EVP_MAX_MD_SIZE];
b6ba4014 988 EVP_CIPHER_CTX *enc_read_ctx; /* cryptographic state */
bebc0c7d 989 unsigned char read_iv[EVP_MAX_IV_LENGTH]; /* TLSv1.3 static read IV */
b6ba4014 990 EVP_MD_CTX *read_hash; /* used for mac generation */
9a555706 991 COMP_CTX *compress; /* compression */
b6ba4014 992 COMP_CTX *expand; /* uncompress */
b6ba4014 993 EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */
bebc0c7d 994 unsigned char write_iv[EVP_MAX_IV_LENGTH]; /* TLSv1.3 static write IV */
b6ba4014 995 EVP_MD_CTX *write_hash; /* used for mac generation */
b6ba4014
MC
996 /* session info */
997 /* client cert? */
998 /* This is used to hold the server certificate used */
999 struct cert_st /* CERT */ *cert;
2c5dfdc3
MC
1000
1001 /*
1002 * The hash of all messages prior to the CertificateVerify, and the length
1003 * of that hash.
1004 */
1005 unsigned char cert_verify_hash[EVP_MAX_MD_SIZE];
1006 size_t cert_verify_hash_len;
1007
7d061fce
MC
1008 /* Flag to indicate whether we should send a HelloRetryRequest or not */
1009 int hello_retry_request;
1010
b6ba4014
MC
1011 /*
1012 * the session_id_context is used to ensure sessions are only reused in
1013 * the appropriate context
1014 */
ec60ccc1 1015 size_t sid_ctx_length;
b6ba4014
MC
1016 unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH];
1017 /* This can also be in the session once a session is established */
1018 SSL_SESSION *session;
1019 /* Default generate session ID callback. */
1020 GEN_SESSION_CB generate_session_id;
1021 /* Used in SSL3 */
1022 /*
1023 * 0 don't care about verify failure.
1024 * 1 fail if verify fails
1025 */
f7d53487 1026 uint32_t verify_mode;
b6ba4014
MC
1027 /* fail if callback returns 0 */
1028 int (*verify_callback) (int ok, X509_STORE_CTX *ctx);
1029 /* optional informational callback */
1030 void (*info_callback) (const SSL *ssl, int type, int val);
1031 /* error bytes to be written */
1032 int error;
1033 /* actual code */
1034 int error_code;
a230b26e 1035# ifndef OPENSSL_NO_PSK
8cbfcc70
RS
1036 SSL_psk_client_cb_func psk_client_callback;
1037 SSL_psk_server_cb_func psk_server_callback;
a230b26e 1038# endif
b6ba4014 1039 SSL_CTX *ctx;
696178ed
DSH
1040 /* Verified chain of peer */
1041 STACK_OF(X509) *verified_chain;
b6ba4014 1042 long verify_result;
696178ed 1043 /* extra application data */
b6ba4014
MC
1044 CRYPTO_EX_DATA ex_data;
1045 /* for server side, keep the list of CA_dn we can use */
1046 STACK_OF(X509_NAME) *client_CA;
2f545ae4 1047 CRYPTO_REF_COUNT references;
b6ba4014 1048 /* protocol behaviour */
f7d53487 1049 uint32_t options;
b6ba4014 1050 /* API behaviour */
f7d53487 1051 uint32_t mode;
7946ab33
KR
1052 int min_proto_version;
1053 int max_proto_version;
12472b45 1054 size_t max_cert_list;
b6ba4014 1055 int first_packet;
7acb8b64
MC
1056 /*
1057 * What was passed in ClientHello.legacy_version. Used for RSA pre-master
1058 * secret and SSLv3/TLS (<=1.2) rollback check
1059 */
b6ba4014 1060 int client_version;
d102d9df
MC
1061 /*
1062 * If we're using more than one pipeline how should we divide the data
1063 * up between the pipes?
1064 */
7ee8627f 1065 size_t split_send_fragment;
d102d9df
MC
1066 /*
1067 * Maximum amount of data to send in one fragment. actual record size can
1068 * be more than this due to padding and MAC overheads.
1069 */
7ee8627f 1070 size_t max_send_fragment;
d102d9df 1071 /* Up to how many pipelines should we use? If 0 then 1 is assumed */
7ee8627f 1072 size_t max_pipelines;
aff8c126
RS
1073
1074 struct {
1075 /* TLS extension debug callback */
1ed327f7
RS
1076 void (*debug_cb)(SSL *s, int client_server, int type,
1077 const unsigned char *data, int len, void *arg);
aff8c126
RS
1078 void *debug_arg;
1079 char *hostname;
1080 /* certificate status request info */
1081 /* Status type or -1 if no status type */
1082 int status_type;
1083 /* Raw extension data, if seen */
1084 unsigned char *scts;
1085 /* Length of raw extension data, if seen */
1086 uint16_t scts_len;
1087 /* Expect OCSP CertificateStatus message */
1088 int status_expected;
1089
1090 struct {
1091 /* OCSP status request only */
1092 STACK_OF(OCSP_RESPID) *ids;
1093 X509_EXTENSIONS *exts;
1094 /* OCSP response received or to be sent */
1095 unsigned char *resp;
1096 size_t resp_len;
1097 } ocsp;
1098
1099 /* RFC4507 session ticket expected to be received or sent */
1100 int ticket_expected;
1101# ifndef OPENSSL_NO_EC
1102 size_t ecpointformats_len;
1103 /* our list */
1104 unsigned char *ecpointformats;
1105 size_t supportedgroups_len;
1106 /* our list */
1107 unsigned char *supportedgroups;
1108# endif /* OPENSSL_NO_EC */
1109 /* TLS Session Ticket extension override */
1110 TLS_SESSION_TICKET_EXT *session_ticket;
1111 /* TLS Session Ticket extension callback */
1112 tls_session_ticket_ext_cb_fn session_ticket_cb;
1113 void *session_ticket_cb_arg;
1114 /* TLS pre-shared secret session resumption */
1115 tls_session_secret_cb_fn session_secret_cb;
1116 void *session_secret_cb_arg;
1117 /*
1118 * For a client, this contains the list of supported protocols in wire
1119 * format.
1120 */
1121 unsigned char *alpn;
1122 size_t alpn_len;
1123 /*
1124 * Next protocol negotiation. For the client, this is the protocol that
1125 * we sent in NextProtocol and is set when handling ServerHello
1126 * extensions. For a server, this is the client's selected_protocol from
1127 * NextProtocol and is set when handling the NextProtocol message, before
1128 * the Finished message.
1129 */
1130 unsigned char *npn;
1131 size_t npn_len;
b2f7e8c0 1132
4086b42b 1133 /* The available PSK key exchange modes */
b2f7e8c0 1134 int psk_kex_mode;
aff8c126
RS
1135 } ext;
1136
b6ba4014
MC
1137 /*-
1138 * no further mod of servername
1139 * 0 : call the servername extension callback.
1140 * 1 : prepare 2, allow last ack just after in server callback.
1141 * 2 : don't call servername callback, no ack in server hello
1142 */
1143 int servername_done;
a230b26e 1144# ifndef OPENSSL_NO_CT
ed29e82a 1145 /*
a230b26e
EK
1146 * Validates that the SCTs (Signed Certificate Timestamps) are sufficient.
1147 * If they are not, the connection should be aborted.
1148 */
43341433 1149 ssl_ct_validation_cb ct_validation_callback;
48722ff5 1150 /* User-supplied argument that is passed to the ct_validation_callback */
ed29e82a
RP
1151 void *ct_validation_callback_arg;
1152 /*
1153 * Consolidated stack of SCTs from all sources.
1154 * Lazily populated by CT_get_peer_scts(SSL*)
1155 */
1156 STACK_OF(SCT) *scts;
ed29e82a
RP
1157 /* Have we attempted to find/parse SCTs yet? */
1158 int scts_parsed;
a230b26e 1159# endif
222da979 1160 SSL_CTX *session_ctx; /* initial ctx, used to store sessions */
b6ba4014
MC
1161 /* What we'll do */
1162 STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;
1163 /* What's been chosen */
1164 SRTP_PROTECTION_PROFILE *srtp_profile;
b6ba4014
MC
1165 /*-
1166 * 1 if we are renegotiating.
1167 * 2 if we are a server and are inside a handshake
1168 * (i.e. not just sending a HelloRequest)
1169 */
1170 int renegotiate;
a230b26e 1171# ifndef OPENSSL_NO_SRP
b6ba4014
MC
1172 /* ctx for SRP authentication */
1173 SRP_CTX srp_ctx;
a230b26e 1174# endif
b6ba4014
MC
1175 /*
1176 * Callback for disabling session caching and ticket support on a session
1177 * basis, depending on the chosen cipher.
1178 */
1179 int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure);
28d59af8 1180 RECORD_LAYER rlayer;
a974e64a
MC
1181 /* Default password callback. */
1182 pem_password_cb *default_passwd_callback;
a974e64a
MC
1183 /* Default password callback user data. */
1184 void *default_passwd_callback_userdata;
07bbc92c
MC
1185 /* Async Job info */
1186 ASYNC_JOB *job;
ff75a257 1187 ASYNC_WAIT_CTX *waitctx;
7ee8627f 1188 size_t asyncrw;
eda75751 1189
16203f7b 1190 CRYPTO_RWLOCK *lock;
b6ba4014
MC
1191};
1192
f742cda8
DSH
1193/*
1194 * Structure containing table entry of values associated with the signature
1195 * algorithms (signature scheme) extension
1196*/
1197typedef struct sigalg_lookup_st {
1198 /* TLS 1.3 signature scheme name */
1199 const char *name;
1200 /* Raw value used in extension */
1201 uint16_t sigalg;
1202 /* NID of hash algorithm */
1203 int hash;
17ae384e
DSH
1204 /* Index of hash algorithm */
1205 int hash_idx;
f742cda8
DSH
1206 /* NID of signature algorithm */
1207 int sig;
17ae384e
DSH
1208 /* Index of signature algorithm */
1209 int sig_idx;
f742cda8
DSH
1210 /* Combined hash and signature NID, if any */
1211 int sigandhash;
1212 /* Required public key curve (ECDSA only) */
1213 int curve;
1214} SIGALG_LOOKUP;
1215
a497cf25
DSH
1216typedef struct cert_pkey_st CERT_PKEY;
1217
b6ba4014
MC
1218typedef struct ssl3_state_st {
1219 long flags;
b43d1cbb 1220 size_t read_mac_secret_size;
b6ba4014 1221 unsigned char read_mac_secret[EVP_MAX_MD_SIZE];
b43d1cbb 1222 size_t write_mac_secret_size;
b6ba4014
MC
1223 unsigned char write_mac_secret[EVP_MAX_MD_SIZE];
1224 unsigned char server_random[SSL3_RANDOM_SIZE];
1225 unsigned char client_random[SSL3_RANDOM_SIZE];
1226 /* flags for countermeasure against known-IV weakness */
1227 int need_empty_fragments;
1228 int empty_fragment_done;
b6ba4014
MC
1229 /* used during startup, digest all incoming/outgoing packets */
1230 BIO *handshake_buffer;
1231 /*
28ba2541
DSH
1232 * When handshake digest is determined, buffer is hashed and
1233 * freed and MD_CTX for the required digest is stored here.
b6ba4014 1234 */
28ba2541 1235 EVP_MD_CTX *handshake_dgst;
b6ba4014
MC
1236 /*
1237 * Set whenever an expected ChangeCipherSpec message is processed.
1238 * Unset when the peer's Finished message is received.
1239 * Unexpected ChangeCipherSpec messages trigger a fatal alert.
1240 */
1241 int change_cipher_spec;
1242 int warn_alert;
1243 int fatal_alert;
1244 /*
1245 * we allow one fatal and one warning alert to be outstanding, send close
1246 * alert via the warning alert
1247 */
1248 int alert_dispatch;
1249 unsigned char send_alert[2];
1250 /*
1251 * This flag is set when we should renegotiate ASAP, basically when there
1252 * is no more data in the read or write buffers
1253 */
1254 int renegotiate;
1255 int total_renegotiations;
1256 int num_renegotiations;
1257 int in_read_app_data;
1258 struct {
b6ba4014
MC
1259 /* actually only need to be 16+20 for SSLv3 and 12 for TLS */
1260 unsigned char finish_md[EVP_MAX_MD_SIZE * 2];
12472b45 1261 size_t finish_md_len;
b6ba4014 1262 unsigned char peer_finish_md[EVP_MAX_MD_SIZE * 2];
12472b45 1263 size_t peer_finish_md_len;
eda75751 1264 size_t message_size;
b6ba4014
MC
1265 int message_type;
1266 /* used to hold the new cipher we are going to use */
1267 const SSL_CIPHER *new_cipher;
a230b26e
EK
1268# if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
1269 EVP_PKEY *pkey; /* holds short lived DH/ECDH key */
1270# endif
b6ba4014
MC
1271 /* used for certificate requests */
1272 int cert_req;
1273 int ctype_num;
1274 char ctype[SSL3_CT_NUMBER];
1275 STACK_OF(X509_NAME) *ca_names;
8c1a5343 1276 size_t key_block_length;
b6ba4014
MC
1277 unsigned char *key_block;
1278 const EVP_CIPHER *new_sym_enc;
1279 const EVP_MD *new_hash;
1280 int new_mac_pkey_type;
b43d1cbb 1281 size_t new_mac_secret_size;
a230b26e 1282# ifndef OPENSSL_NO_COMP
b6ba4014 1283 const SSL_COMP *new_compression;
a230b26e 1284# else
b6ba4014 1285 char *new_compression;
a230b26e 1286# endif
b6ba4014 1287 int cert_request;
76106e60
DSH
1288 /* Raw values of the cipher list from a client */
1289 unsigned char *ciphers_raw;
1290 size_t ciphers_rawlen;
1291 /* Temporary storage for premaster secret */
1292 unsigned char *pms;
1293 size_t pmslen;
a230b26e 1294# ifndef OPENSSL_NO_PSK
64651d39
DSH
1295 /* Temporary storage for PSK key */
1296 unsigned char *psk;
1297 size_t psklen;
a230b26e 1298# endif
93a77f9e
DSH
1299 /* Signature algorithm we actually use */
1300 const SIGALG_LOOKUP *sigalg;
a497cf25
DSH
1301 /* Pointer to certificate we use */
1302 CERT_PKEY *cert;
76106e60
DSH
1303 /*
1304 * signature algorithms peer reports: e.g. supported signature
1305 * algorithms extension for server or as part of a certificate
1306 * request for client.
1307 */
98c792d1 1308 uint16_t *peer_sigalgs;
76106e60
DSH
1309 /* Size of above array */
1310 size_t peer_sigalgslen;
f742cda8
DSH
1311 /* Sigalg peer actualy uses */
1312 const SIGALG_LOOKUP *peer_sigalg;
d376e57d
DSH
1313 /* Array of digests used for signing */
1314 const EVP_MD *md[SSL_PKEY_NUM];
6383d316
DSH
1315 /*
1316 * Set if corresponding CERT_PKEY can be used with current
1317 * SSL session: e.g. appropriate curve, signature algorithms etc.
1318 * If zero it can't be used at all.
1319 */
f7d53487 1320 uint32_t valid_flags[SSL_PKEY_NUM];
4d69f9e6
DSH
1321 /*
1322 * For servers the following masks are for the key and auth algorithms
1323 * that are supported by the certs below. For clients they are masks of
1324 * *disabled* algorithms based on the current session.
1325 */
90d9e49a
DSH
1326 uint32_t mask_k;
1327 uint32_t mask_a;
3eb2aff4
KR
1328 /*
1329 * The following are used by the client to see if a cipher is allowed or
1330 * not. It contains the minimum and maximum version the client's using
1331 * based on what it knows so far.
1332 */
1333 int min_ver;
1334 int max_ver;
b6ba4014
MC
1335 } tmp;
1336
1337 /* Connection binding to prevent renegotiation attacks */
1338 unsigned char previous_client_finished[EVP_MAX_MD_SIZE];
12472b45 1339 size_t previous_client_finished_len;
b6ba4014 1340 unsigned char previous_server_finished[EVP_MAX_MD_SIZE];
12472b45 1341 size_t previous_server_finished_len;
b6ba4014
MC
1342 int send_connection_binding; /* TODOEKR */
1343
a230b26e 1344# ifndef OPENSSL_NO_NEXTPROTONEG
b6ba4014
MC
1345 /*
1346 * Set if we saw the Next Protocol Negotiation extension from our peer.
1347 */
aff8c126 1348 int npn_seen;
a230b26e 1349# endif
b6ba4014 1350
b6ba4014
MC
1351 /*
1352 * ALPN information (we are in the process of transitioning from NPN to
1353 * ALPN.)
1354 */
1355
1356 /*
1357 * In a server these point to the selected ALPN protocol after the
1358 * ClientHello has been processed. In a client these contain the protocol
1359 * that the server selected once the ServerHello has been processed.
1360 */
1361 unsigned char *alpn_selected;
817cd0d5
TS
1362 size_t alpn_selected_len;
1363 /* used by the server to know what options were proposed */
1364 unsigned char *alpn_proposed;
1365 size_t alpn_proposed_len;
1366 /* used by the client to know if it actually sent alpn */
1367 int alpn_sent;
b6ba4014 1368
a230b26e 1369# ifndef OPENSSL_NO_EC
b6ba4014
MC
1370 /*
1371 * This is set to true if we believe that this is a version of Safari
1372 * running on OS X 10.6 or newer. We wish to know this because Safari on
1373 * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support.
1374 */
1375 char is_probably_safari;
a230b26e 1376# endif /* !OPENSSL_NO_EC */
8d92c1f8
DSH
1377
1378 /* For clients: peer temporary key */
fb79abe3 1379# if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH)
bcec3358
MC
1380 /* The group_id for the DH/ECDH key */
1381 unsigned int group_id;
61dd9f7a 1382 EVP_PKEY *peer_tmp;
8d92c1f8
DSH
1383# endif
1384
b6ba4014
MC
1385} SSL3_STATE;
1386
b6ba4014
MC
1387/* DTLS structures */
1388
a230b26e
EK
1389# ifndef OPENSSL_NO_SCTP
1390# define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP"
1391# endif
b6ba4014
MC
1392
1393/* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */
a230b26e 1394# define DTLS1_MAX_MTU_OVERHEAD 48
b6ba4014 1395
e3d0dae7
MC
1396/*
1397 * Flag used in message reuse to indicate the buffer contains the record
1398 * header as well as the the handshake message header.
1399 */
a230b26e 1400# define DTLS1_SKIP_RECORD_HEADER 2
e3d0dae7 1401
b6ba4014
MC
1402struct dtls1_retransmit_state {
1403 EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */
1404 EVP_MD_CTX *write_hash; /* used for mac generation */
b6ba4014 1405 COMP_CTX *compress; /* compression */
b6ba4014
MC
1406 SSL_SESSION *session;
1407 unsigned short epoch;
1408};
1409
1410struct hm_header_st {
1411 unsigned char type;
7ee8627f 1412 size_t msg_len;
b6ba4014 1413 unsigned short seq;
7ee8627f
MC
1414 size_t frag_off;
1415 size_t frag_len;
b6ba4014
MC
1416 unsigned int is_ccs;
1417 struct dtls1_retransmit_state saved_retransmit_state;
1418};
1419
b6ba4014
MC
1420struct dtls1_timeout_st {
1421 /* Number of read timeouts so far */
1422 unsigned int read_timeouts;
1423 /* Number of write timeouts so far */
1424 unsigned int write_timeouts;
1425 /* Number of alerts received so far */
1426 unsigned int num_alerts;
1427};
1428
b6ba4014
MC
1429typedef struct hm_fragment_st {
1430 struct hm_header_st msg_header;
1431 unsigned char *fragment;
1432 unsigned char *reassembly;
1433} hm_fragment;
1434
cf2cede4
RS
1435typedef struct pqueue_st pqueue;
1436typedef struct pitem_st pitem;
1437
1438struct pitem_st {
1439 unsigned char priority[8]; /* 64-bit value in big-endian encoding */
1440 void *data;
1441 pitem *next;
1442};
1443
1444typedef struct pitem_st *piterator;
1445
1446pitem *pitem_new(unsigned char *prio64be, void *data);
1447void pitem_free(pitem *item);
a230b26e 1448pqueue *pqueue_new(void);
cf2cede4
RS
1449void pqueue_free(pqueue *pq);
1450pitem *pqueue_insert(pqueue *pq, pitem *item);
1451pitem *pqueue_peek(pqueue *pq);
1452pitem *pqueue_pop(pqueue *pq);
1453pitem *pqueue_find(pqueue *pq, unsigned char *prio64be);
1454pitem *pqueue_iterator(pqueue *pq);
1455pitem *pqueue_next(piterator *iter);
8b0e934a 1456size_t pqueue_size(pqueue *pq);
cf2cede4 1457
b6ba4014 1458typedef struct dtls1_state_st {
b6ba4014 1459 unsigned char cookie[DTLS1_COOKIE_LENGTH];
cb150cbc 1460 size_t cookie_len;
e27f234a 1461 unsigned int cookie_verified;
b6ba4014
MC
1462 /* handshake message numbers */
1463 unsigned short handshake_write_seq;
1464 unsigned short next_handshake_write_seq;
1465 unsigned short handshake_read_seq;
b6ba4014 1466 /* Buffered handshake messages */
cf2cede4 1467 pqueue *buffered_messages;
b6ba4014 1468 /* Buffered (sent) handshake records */
cf2cede4 1469 pqueue *sent_messages;
7ee8627f
MC
1470 size_t link_mtu; /* max on-the-wire DTLS packet size */
1471 size_t mtu; /* max DTLS packet size */
b6ba4014
MC
1472 struct hm_header_st w_msg_hdr;
1473 struct hm_header_st r_msg_hdr;
1474 struct dtls1_timeout_st timeout;
1475 /*
e72040c1 1476 * Indicates when the last handshake msg sent will timeout
b6ba4014
MC
1477 */
1478 struct timeval next_timeout;
1479 /* Timeout duration */
1480 unsigned short timeout_duration;
b6ba4014 1481 unsigned int retransmitting;
a230b26e 1482# ifndef OPENSSL_NO_SCTP
b6ba4014 1483 int shutdown_received;
a230b26e 1484# endif
b6ba4014
MC
1485} DTLS1_STATE;
1486
0f113f3e
MC
1487# ifndef OPENSSL_NO_EC
1488/*
1489 * From ECC-TLS draft, used in encoding the curve type in ECParameters
ea262260 1490 */
0f113f3e
MC
1491# define EXPLICIT_PRIME_CURVE_TYPE 1
1492# define EXPLICIT_CHAR2_CURVE_TYPE 2
1493# define NAMED_CURVE_TYPE 3
1494# endif /* OPENSSL_NO_EC */
1495
a497cf25 1496struct cert_pkey_st {
0f113f3e
MC
1497 X509 *x509;
1498 EVP_PKEY *privatekey;
0f113f3e
MC
1499 /* Chain for this certificate */
1500 STACK_OF(X509) *chain;
50e735f9
MC
1501 /*-
1502 * serverinfo data for this certificate. The data is in TLS Extension
1503 * wire format, specifically it's a series of records like:
1504 * uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension)
1505 * uint16_t length;
1506 * uint8_t data[length];
1507 */
0f113f3e
MC
1508 unsigned char *serverinfo;
1509 size_t serverinfo_length;
a497cf25 1510};
2ea80354 1511/* Retrieve Suite B flags */
0f113f3e 1512# define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS)
2ea80354 1513/* Uses to check strict mode: suite B modes are always strict */
0f113f3e
MC
1514# define SSL_CERT_FLAGS_CHECK_TLS_STRICT \
1515 (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT)
d02b48c6 1516
b83294fe 1517typedef struct {
0f113f3e
MC
1518 unsigned short ext_type;
1519 /*
1520 * Per-connection flags relating to this extension type: not used if
1521 * part of an SSL_CTX structure.
1522 */
f7d53487 1523 uint32_t ext_flags;
0f113f3e
MC
1524 custom_ext_add_cb add_cb;
1525 custom_ext_free_cb free_cb;
1526 void *add_arg;
1527 custom_ext_parse_cb parse_cb;
1528 void *parse_arg;
ecf4d660 1529} custom_ext_method;
b83294fe 1530
28ea0a0c
DSH
1531/* ext_flags values */
1532
0f113f3e
MC
1533/*
1534 * Indicates an extension has been received. Used to check for unsolicited or
1535 * duplicate extensions.
28ea0a0c 1536 */
0f113f3e
MC
1537# define SSL_EXT_FLAG_RECEIVED 0x1
1538/*
1539 * Indicates an extension has been sent: used to enable sending of
1540 * corresponding ServerHello extension.
28ea0a0c 1541 */
0f113f3e 1542# define SSL_EXT_FLAG_SENT 0x2
28ea0a0c 1543
b83294fe 1544typedef struct {
0f113f3e
MC
1545 custom_ext_method *meths;
1546 size_t meths_count;
ecf4d660 1547} custom_ext_methods;
b83294fe 1548
0f113f3e
MC
1549typedef struct cert_st {
1550 /* Current active set */
1551 /*
1552 * ALWAYS points to an element of the pkeys array
1553 * Probably it would make more sense to store
1554 * an index, not a pointer.
1555 */
1556 CERT_PKEY *key;
0f113f3e 1557# ifndef OPENSSL_NO_DH
e2b420fd 1558 EVP_PKEY *dh_tmp;
0f113f3e
MC
1559 DH *(*dh_tmp_cb) (SSL *ssl, int is_export, int keysize);
1560 int dh_tmp_auto;
0f113f3e
MC
1561# endif
1562 /* Flags related to certificates */
f7d53487 1563 uint32_t cert_flags;
0f113f3e
MC
1564 CERT_PKEY pkeys[SSL_PKEY_NUM];
1565 /*
1566 * Certificate types (received or sent) in certificate request message.
1567 * On receive this is only set if number of certificate types exceeds
1568 * SSL3_CT_NUMBER.
1569 */
1570 unsigned char *ctypes;
1571 size_t ctype_num;
0f113f3e 1572 /*
60250017 1573 * supported signature algorithms. When set on a client this is sent in
0f113f3e
MC
1574 * the client hello as the supported signature algorithms extension. For
1575 * servers it represents the signature algorithms we are willing to use.
1576 */
98c792d1 1577 uint16_t *conf_sigalgs;
0f113f3e
MC
1578 /* Size of above array */
1579 size_t conf_sigalgslen;
1580 /*
1581 * Client authentication signature algorithms, if not set then uses
1582 * conf_sigalgs. On servers these will be the signature algorithms sent
48722ff5
F
1583 * to the client in a certificate request for TLS 1.2. On a client this
1584 * represents the signature algorithms we are willing to use for client
0f113f3e
MC
1585 * authentication.
1586 */
98c792d1 1587 uint16_t *client_sigalgs;
0f113f3e
MC
1588 /* Size of above array */
1589 size_t client_sigalgslen;
1590 /*
1591 * Signature algorithms shared by client and server: cached because these
1592 * are used most often.
1593 */
4d43ee28 1594 const SIGALG_LOOKUP **shared_sigalgs;
0f113f3e
MC
1595 size_t shared_sigalgslen;
1596 /*
1597 * Certificate setup callback: if set is called whenever a certificate
1598 * may be required (client or server). the callback can then examine any
1599 * appropriate parameters and setup any certificates required. This
1600 * allows advanced applications to select certificates on the fly: for
1601 * example based on supported signature algorithms or curves.
1602 */
1603 int (*cert_cb) (SSL *ssl, void *arg);
1604 void *cert_cb_arg;
1605 /*
1606 * Optional X509_STORE for chain building or certificate validation If
1607 * NULL the parent SSL_CTX store is used instead.
1608 */
1609 X509_STORE *chain_store;
1610 X509_STORE *verify_store;
0f113f3e
MC
1611 /* Custom extension methods for server and client */
1612 custom_ext_methods cli_ext;
1613 custom_ext_methods srv_ext;
1614 /* Security callback */
e4646a89 1615 int (*sec_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid,
0f113f3e
MC
1616 void *other, void *ex);
1617 /* Security level */
1618 int sec_level;
1619 void *sec_ex;
a230b26e 1620# ifndef OPENSSL_NO_PSK
df6da24b
DSH
1621 /* If not NULL psk identity hint to use for servers */
1622 char *psk_identity_hint;
a230b26e 1623# endif
2f545ae4 1624 CRYPTO_REF_COUNT references; /* >1 only if SSL_copy_session_id is used */
16203f7b 1625 CRYPTO_RWLOCK *lock;
0f113f3e
MC
1626} CERT;
1627
0f113f3e 1628# define FP_ICC (int (*)(const void *,const void *))
0f113f3e
MC
1629
1630/*
1631 * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit
1632 * of a mess of functions, but hell, think of it as an opaque structure :-)
1633 */
1634typedef struct ssl3_enc_method {
72716e79 1635 int (*enc) (SSL *, SSL3_RECORD *, size_t, int);
d102d9df 1636 int (*mac) (SSL *, SSL3_RECORD *, unsigned char *, int);
0f113f3e
MC
1637 int (*setup_key_block) (SSL *);
1638 int (*generate_master_secret) (SSL *, unsigned char *, unsigned char *,
8c1a5343 1639 size_t, size_t *);
0f113f3e 1640 int (*change_cipher_state) (SSL *, int);
6db6bc5a 1641 size_t (*final_finish_mac) (SSL *, const char *, size_t, unsigned char *);
0f113f3e 1642 const char *client_finished_label;
8b0e934a 1643 size_t client_finished_label_len;
0f113f3e 1644 const char *server_finished_label;
8b0e934a 1645 size_t server_finished_label_len;
0f113f3e
MC
1646 int (*alert_value) (int);
1647 int (*export_keying_material) (SSL *, unsigned char *, size_t,
1648 const char *, size_t,
1649 const unsigned char *, size_t,
1650 int use_context);
1651 /* Various flags indicating protocol version requirements */
f7d53487 1652 uint32_t enc_flags;
0f113f3e 1653 /* Set the handshake header */
a29fa98c 1654 int (*set_handshake_header) (SSL *s, WPACKET *pkt, int type);
2c7b4dbc 1655 /* Close construction of the handshake message */
4a01c59f 1656 int (*close_construct_packet) (SSL *s, WPACKET *pkt, int htype);
0f113f3e
MC
1657 /* Write out handshake message */
1658 int (*do_write) (SSL *s);
1659} SSL3_ENC_METHOD;
1660
a29fa98c
MC
1661# define ssl_set_handshake_header(s, pkt, htype) \
1662 s->method->ssl3_enc->set_handshake_header((s), (pkt), (htype))
4a01c59f
MC
1663# define ssl_close_construct_packet(s, pkt, htype) \
1664 s->method->ssl3_enc->close_construct_packet((s), (pkt), (htype))
0f113f3e 1665# define ssl_do_write(s) s->method->ssl3_enc->do_write(s)
173e72e6
DSH
1666
1667/* Values for enc_flags */
1668
1669/* Uses explicit IV for CBC mode */
0f113f3e 1670# define SSL_ENC_FLAG_EXPLICIT_IV 0x1
173e72e6 1671/* Uses signature algorithms extension */
0f113f3e 1672# define SSL_ENC_FLAG_SIGALGS 0x2
cbd64894 1673/* Uses SHA256 default PRF */
0f113f3e 1674# define SSL_ENC_FLAG_SHA256_PRF 0x4
173e72e6 1675/* Is DTLS */
0f113f3e
MC
1676# define SSL_ENC_FLAG_DTLS 0x8
1677/*
1678 * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may
1679 * apply to others in future.
4221c0dd 1680 */
0f113f3e 1681# define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10
173e72e6 1682
0f113f3e 1683# ifndef OPENSSL_NO_COMP
651d0aff 1684/* Used for holding the relevant compression methods loaded into SSL_CTX */
0f113f3e
MC
1685typedef struct ssl3_comp_st {
1686 int comp_id; /* The identifier byte for this compression
1687 * type */
1688 char *name; /* Text name used for the compression type */
1689 COMP_METHOD *method; /* The method :-) */
1690} SSL3_COMP;
1691# endif
dfeab068 1692
6f8db4e6 1693typedef struct raw_extension_st {
6b473aca 1694 /* Raw packet data for the extension */
1ab3836b 1695 PACKET data;
70af3d8e
MC
1696 /* Set to 1 if the extension is present or 0 otherwise */
1697 int present;
6b473aca
MC
1698 /* Set to 1 if we have already parsed the extension or 0 otherwise */
1699 int parsed;
ecc2f938 1700 /* The type of this extension, i.e. a TLSEXT_TYPE_* value */
70af3d8e 1701 unsigned int type;
1ab3836b
MC
1702} RAW_EXTENSION;
1703
70af3d8e
MC
1704/*
1705 * Extension index values NOTE: Any updates to these defines should be mirrored
1706 * with equivalent updates to ext_defs in extensions.c
1707 */
d270de32
MC
1708typedef enum tlsext_index_en {
1709 TLSEXT_IDX_renegotiate,
1710 TLSEXT_IDX_server_name,
1711 TLSEXT_IDX_srp,
1712 TLSEXT_IDX_ec_point_formats,
1713 TLSEXT_IDX_supported_groups,
1714 TLSEXT_IDX_session_ticket,
1715 TLSEXT_IDX_signature_algorithms,
1716 TLSEXT_IDX_status_request,
1717 TLSEXT_IDX_next_proto_neg,
1718 TLSEXT_IDX_application_layer_protocol_negotiation,
1719 TLSEXT_IDX_use_srtp,
1720 TLSEXT_IDX_encrypt_then_mac,
1721 TLSEXT_IDX_signed_certificate_timestamp,
1722 TLSEXT_IDX_extended_master_secret,
1723 TLSEXT_IDX_supported_versions,
b2f7e8c0 1724 TLSEXT_IDX_psk_kex_modes,
d270de32
MC
1725 TLSEXT_IDX_key_share,
1726 TLSEXT_IDX_cryptopro_bug,
ec15acb6
MC
1727 TLSEXT_IDX_padding,
1728 TLSEXT_IDX_psk
d270de32 1729} TLSEXT_INDEX;
70af3d8e 1730
cbb09544
MC
1731/*
1732 * Dummy status type for the status_type extension. Indicates no status type
1733 * set
1734 */
1735#define TLSEXT_STATUSTYPE_nothing -1
1736
703bcee0
MC
1737/* Sigalgs values */
1738#define TLSEXT_SIGALG_ecdsa_secp256r1_sha256 0x0403
1739#define TLSEXT_SIGALG_ecdsa_secp384r1_sha384 0x0503
1740#define TLSEXT_SIGALG_ecdsa_secp521r1_sha512 0x0603
1741#define TLSEXT_SIGALG_ecdsa_sha1 0x0203
1742#define TLSEXT_SIGALG_rsa_pss_sha256 0x0804
1743#define TLSEXT_SIGALG_rsa_pss_sha384 0x0805
1744#define TLSEXT_SIGALG_rsa_pss_sha512 0x0806
1745#define TLSEXT_SIGALG_rsa_pkcs1_sha256 0x0401
1746#define TLSEXT_SIGALG_rsa_pkcs1_sha384 0x0501
1747#define TLSEXT_SIGALG_rsa_pkcs1_sha512 0x0601
1748#define TLSEXT_SIGALG_rsa_pkcs1_sha1 0x0201
1749#define TLSEXT_SIGALG_dsa_sha256 0x0402
1750#define TLSEXT_SIGALG_dsa_sha384 0x0502
1751#define TLSEXT_SIGALG_dsa_sha512 0x0602
1752#define TLSEXT_SIGALG_dsa_sha1 0x0202
1753#define TLSEXT_SIGALG_gostr34102012_256_gostr34112012_256 0xeeee
1754#define TLSEXT_SIGALG_gostr34102012_512_gostr34112012_512 0xefef
1755#define TLSEXT_SIGALG_gostr34102001_gostr3411 0xeded
1756
b2f7e8c0
MC
1757/* Known PSK key exchange modes */
1758#define TLSEXT_KEX_MODE_KE 0x00
1759#define TLSEXT_KEX_MODE_KE_DHE 0x01
1760
1761/*
1762 * Internal representations of key exchange modes
1763 */
1764#define TLSEXT_KEX_MODE_FLAG_NONE 0
1765#define TLSEXT_KEX_MODE_FLAG_KE 1
1766#define TLSEXT_KEX_MODE_FLAG_KE_DHE 2
1767
ec15acb6
MC
1768/* An invalid index into the TLSv1.3 PSK identities */
1769#define TLSEXT_PSK_BAD_IDENTITY -1
1770
f742cda8
DSH
1771#define SSL_USE_PSS(s) (s->s3->tmp.peer_sigalg != NULL && \
1772 s->s3->tmp.peer_sigalg->sig == EVP_PKEY_RSA_PSS)
fe3066ee 1773
703bcee0
MC
1774/* A dummy signature value not valid for TLSv1.2 signature algs */
1775#define TLSEXT_signature_rsa_pss 0x0101
1776
1777
1ab3836b
MC
1778#define MAX_COMPRESSIONS_SIZE 255
1779
1780typedef struct {
1781 unsigned int isv2;
df7ce507 1782 unsigned int legacy_version;
1ab3836b
MC
1783 unsigned char random[SSL3_RANDOM_SIZE];
1784 size_t session_id_len;
1785 unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH];
1786 size_t dtls_cookie_len;
1787 unsigned char dtls_cookie[DTLS1_COOKIE_LENGTH];
1788 PACKET ciphersuites;
1789 size_t compressions_len;
1790 unsigned char compressions[MAX_COMPRESSIONS_SIZE];
1791 PACKET extensions;
1ab3836b
MC
1792 RAW_EXTENSION *pre_proc_exts;
1793} CLIENTHELLO_MSG;
1794
3ed449e9 1795extern SSL3_ENC_METHOD ssl3_undef_enc_method;
7d7d2cbc 1796
2b8fa1d5
KR
1797__owur const SSL_METHOD *ssl_bad_method(int ver);
1798__owur const SSL_METHOD *sslv3_method(void);
1799__owur const SSL_METHOD *sslv3_server_method(void);
1800__owur const SSL_METHOD *sslv3_client_method(void);
1801__owur const SSL_METHOD *tlsv1_method(void);
1802__owur const SSL_METHOD *tlsv1_server_method(void);
1803__owur const SSL_METHOD *tlsv1_client_method(void);
1804__owur const SSL_METHOD *tlsv1_1_method(void);
1805__owur const SSL_METHOD *tlsv1_1_server_method(void);
1806__owur const SSL_METHOD *tlsv1_1_client_method(void);
1807__owur const SSL_METHOD *tlsv1_2_method(void);
1808__owur const SSL_METHOD *tlsv1_2_server_method(void);
1809__owur const SSL_METHOD *tlsv1_2_client_method(void);
582a17d6
MC
1810__owur const SSL_METHOD *tlsv1_3_method(void);
1811__owur const SSL_METHOD *tlsv1_3_server_method(void);
1812__owur const SSL_METHOD *tlsv1_3_client_method(void);
2b8fa1d5
KR
1813__owur const SSL_METHOD *dtlsv1_method(void);
1814__owur const SSL_METHOD *dtlsv1_server_method(void);
1815__owur const SSL_METHOD *dtlsv1_client_method(void);
032924c4 1816__owur const SSL_METHOD *dtls_bad_ver_client_method(void);
2b8fa1d5
KR
1817__owur const SSL_METHOD *dtlsv1_2_method(void);
1818__owur const SSL_METHOD *dtlsv1_2_server_method(void);
1819__owur const SSL_METHOD *dtlsv1_2_client_method(void);
d02b48c6 1820
161e0a61
BL
1821extern const SSL3_ENC_METHOD TLSv1_enc_data;
1822extern const SSL3_ENC_METHOD TLSv1_1_enc_data;
1823extern const SSL3_ENC_METHOD TLSv1_2_enc_data;
582a17d6 1824extern const SSL3_ENC_METHOD TLSv1_3_enc_data;
8892ce77
BL
1825extern const SSL3_ENC_METHOD SSLv3_enc_data;
1826extern const SSL3_ENC_METHOD DTLSv1_enc_data;
1827extern const SSL3_ENC_METHOD DTLSv1_2_enc_data;
f3b656b2 1828
4fa52141
VD
1829/*
1830 * Flags for SSL methods
1831 */
a230b26e
EK
1832# define SSL_METHOD_NO_FIPS (1U<<0)
1833# define SSL_METHOD_NO_SUITEB (1U<<1)
4fa52141
VD
1834
1835# define IMPLEMENT_tls_meth_func(version, flags, mask, func_name, s_accept, \
ccae4a15 1836 s_connect, enc_data) \
4ebb342f 1837const SSL_METHOD *func_name(void) \
0f113f3e
MC
1838 { \
1839 static const SSL_METHOD func_name##_data= { \
1840 version, \
4fa52141
VD
1841 flags, \
1842 mask, \
0f113f3e
MC
1843 tls1_new, \
1844 tls1_clear, \
1845 tls1_free, \
1846 s_accept, \
1847 s_connect, \
1848 ssl3_read, \
1849 ssl3_peek, \
1850 ssl3_write, \
1851 ssl3_shutdown, \
1852 ssl3_renegotiate, \
1853 ssl3_renegotiate_check, \
0f113f3e
MC
1854 ssl3_read_bytes, \
1855 ssl3_write_bytes, \
1856 ssl3_dispatch_alert, \
1857 ssl3_ctrl, \
1858 ssl3_ctx_ctrl, \
1859 ssl3_get_cipher_by_char, \
1860 ssl3_put_cipher_by_char, \
1861 ssl3_pending, \
1862 ssl3_num_ciphers, \
1863 ssl3_get_cipher, \
0f113f3e
MC
1864 tls1_default_timeout, \
1865 &enc_data, \
1866 ssl_undefined_void_function, \
1867 ssl3_callback_ctrl, \
1868 ssl3_ctx_callback_ctrl, \
1869 }; \
1870 return &func_name##_data; \
1871 }
1872
ccae4a15 1873# define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect) \
4ebb342f 1874const SSL_METHOD *func_name(void) \
0f113f3e
MC
1875 { \
1876 static const SSL_METHOD func_name##_data= { \
1877 SSL3_VERSION, \
4fa52141
VD
1878 SSL_METHOD_NO_FIPS | SSL_METHOD_NO_SUITEB, \
1879 SSL_OP_NO_SSLv3, \
0f113f3e
MC
1880 ssl3_new, \
1881 ssl3_clear, \
1882 ssl3_free, \
1883 s_accept, \
1884 s_connect, \
1885 ssl3_read, \
1886 ssl3_peek, \
1887 ssl3_write, \
1888 ssl3_shutdown, \
1889 ssl3_renegotiate, \
1890 ssl3_renegotiate_check, \
0f113f3e
MC
1891 ssl3_read_bytes, \
1892 ssl3_write_bytes, \
1893 ssl3_dispatch_alert, \
1894 ssl3_ctrl, \
1895 ssl3_ctx_ctrl, \
1896 ssl3_get_cipher_by_char, \
1897 ssl3_put_cipher_by_char, \
1898 ssl3_pending, \
1899 ssl3_num_ciphers, \
1900 ssl3_get_cipher, \
0f113f3e
MC
1901 ssl3_default_timeout, \
1902 &SSLv3_enc_data, \
1903 ssl_undefined_void_function, \
1904 ssl3_callback_ctrl, \
1905 ssl3_ctx_callback_ctrl, \
1906 }; \
1907 return &func_name##_data; \
1908 }
1909
4fa52141 1910# define IMPLEMENT_dtls1_meth_func(version, flags, mask, func_name, s_accept, \
ccae4a15 1911 s_connect, enc_data) \
4ebb342f 1912const SSL_METHOD *func_name(void) \
0f113f3e
MC
1913 { \
1914 static const SSL_METHOD func_name##_data= { \
1915 version, \
4fa52141
VD
1916 flags, \
1917 mask, \
0f113f3e
MC
1918 dtls1_new, \
1919 dtls1_clear, \
1920 dtls1_free, \
1921 s_accept, \
1922 s_connect, \
1923 ssl3_read, \
1924 ssl3_peek, \
1925 ssl3_write, \
1926 dtls1_shutdown, \
1927 ssl3_renegotiate, \
1928 ssl3_renegotiate_check, \
0f113f3e
MC
1929 dtls1_read_bytes, \
1930 dtls1_write_app_data_bytes, \
1931 dtls1_dispatch_alert, \
1932 dtls1_ctrl, \
1933 ssl3_ctx_ctrl, \
1934 ssl3_get_cipher_by_char, \
1935 ssl3_put_cipher_by_char, \
1936 ssl3_pending, \
1937 ssl3_num_ciphers, \
ca3895f0 1938 ssl3_get_cipher, \
0f113f3e
MC
1939 dtls1_default_timeout, \
1940 &enc_data, \
1941 ssl_undefined_void_function, \
1942 ssl3_callback_ctrl, \
1943 ssl3_ctx_callback_ctrl, \
1944 }; \
1945 return &func_name##_data; \
1946 }
1947
1948struct openssl_ssl_test_functions {
46417569 1949 int (*p_ssl_init_wbio_buffer) (SSL *s);
0f113f3e 1950 int (*p_ssl3_setup_buffers) (SSL *s);
0f113f3e
MC
1951};
1952
3eb2aff4 1953const char *ssl_protocol_to_string(int version);
7d650072 1954
4020c0b3
DSH
1955/* Returns true if certificate and private key for 'idx' are present */
1956static ossl_inline int ssl_has_cert(const SSL *s, int idx)
1957{
1958 if (idx < 0 || idx >= SSL_PKEY_NUM)
1959 return 0;
1960 return s->cert->pkeys[idx].x509 != NULL
1961 && s->cert->pkeys[idx].privatekey != NULL;
1962}
1963
0f113f3e 1964# ifndef OPENSSL_UNIT_TEST
e0fc7961 1965
d02b48c6
RE
1966void ssl_clear_cipher_ctx(SSL *s);
1967int ssl_clear_bad_session(SSL *s);
4bcdb4a6
MC
1968__owur CERT *ssl_cert_new(void);
1969__owur CERT *ssl_cert_dup(CERT *cert);
a5ee80b9 1970void ssl_cert_clear_certs(CERT *c);
d02b48c6 1971void ssl_cert_free(CERT *c);
4bcdb4a6 1972__owur int ssl_get_new_session(SSL *s, int session);
1a9f457c 1973__owur int ssl_get_prev_session(SSL *s, CLIENTHELLO_MSG *hello, int *al);
98ece4ee 1974__owur SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket);
4bcdb4a6 1975__owur int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b);
0f113f3e 1976DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id);
4bcdb4a6 1977__owur int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap,
a230b26e 1978 const SSL_CIPHER *const *bp);
4bcdb4a6 1979__owur STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth,
a230b26e
EK
1980 STACK_OF(SSL_CIPHER) **pref,
1981 STACK_OF(SSL_CIPHER)
1982 **sorted,
1983 const char *rule_str,
1984 CERT *c);
d02b48c6 1985void ssl_update_cache(SSL *s, int mode);
4bcdb4a6 1986__owur int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc,
a230b26e 1987 const EVP_MD **md, int *mac_pkey_type,
8c1a5343 1988 size_t *mac_secret_size, SSL_COMP **comp,
a230b26e 1989 int use_etm);
045bd047
DW
1990__owur int ssl_cipher_get_overhead(const SSL_CIPHER *c, size_t *mac_overhead,
1991 size_t *int_overhead, size_t *blocksize,
1992 size_t *ext_overhead);
4bcdb4a6 1993__owur int ssl_cipher_get_cert_index(const SSL_CIPHER *c);
a230b26e
EK
1994__owur const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl,
1995 const unsigned char *ptr);
4bcdb4a6
MC
1996__owur int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
1997__owur int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain);
1998__owur int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
1999__owur int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x);
2000__owur int ssl_cert_select_current(CERT *c, X509 *x);
2001__owur int ssl_cert_set_current(CERT *c, long arg);
2002__owur X509 *ssl_cert_get0_next_certificate(CERT *c, int first);
a230b26e 2003void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg), void *arg);
f71c6e52 2004
4bcdb4a6 2005__owur int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk);
4bcdb4a6 2006__owur int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags);
a230b26e
EK
2007__owur int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain,
2008 int ref);
b362ccab 2009
e4646a89 2010__owur int ssl_security(const SSL *s, int op, int bits, int nid, void *other);
a230b26e
EK
2011__owur int ssl_ctx_security(const SSL_CTX *ctx, int op, int bits, int nid,
2012 void *other);
b362ccab 2013
d02b48c6 2014int ssl_undefined_function(SSL *s);
4bcdb4a6
MC
2015__owur int ssl_undefined_void_function(void);
2016__owur int ssl_undefined_const_function(const SSL *s);
a230b26e
EK
2017__owur int ssl_get_server_cert_serverinfo(SSL *s,
2018 const unsigned char **serverinfo,
2019 size_t *serverinfo_length);
2e5ead83 2020__owur int ssl_cert_type(const X509 *x, const EVP_PKEY *pkey);
2cf28d61 2021void ssl_set_masks(SSL *s);
4bcdb4a6
MC
2022__owur STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
2023__owur int ssl_verify_alarm_type(long type);
748f2546 2024void ssl_sort_cipher_list(void);
7f3c9036 2025void ssl_load_ciphers(void);
a230b26e 2026__owur int ssl_fill_hello_random(SSL *s, int server, unsigned char *field,
6db6bc5a 2027 size_t len);
57b272b0
DSH
2028__owur int ssl_generate_master_secret(SSL *s, unsigned char *pms, size_t pmslen,
2029 int free_pms);
0a699a07 2030__owur EVP_PKEY *ssl_generate_pkey(EVP_PKEY *pm);
0f1e51ea
MC
2031__owur int ssl_derive(SSL *s, EVP_PKEY *privkey, EVP_PKEY *pubkey,
2032 int genmaster);
6c4e6670 2033__owur EVP_PKEY *ssl_dh_to_pkey(DH *dh);
d02b48c6 2034
ec15acb6 2035__owur const SSL_CIPHER *ssl3_get_cipher_by_id(uint32_t id);
4bcdb4a6 2036__owur const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
ae2f7b37 2037__owur int ssl3_put_cipher_by_char(const SSL_CIPHER *c, WPACKET *pkt,
2c7b4dbc 2038 size_t *len);
2c4a056f 2039int ssl3_init_finished_mac(SSL *s);
4bcdb4a6 2040__owur int ssl3_setup_key_block(SSL *s);
4bcdb4a6 2041__owur int ssl3_change_cipher_state(SSL *s, int which);
d02b48c6 2042void ssl3_cleanup_key_block(SSL *s);
4bcdb4a6 2043__owur int ssl3_do_write(SSL *s, int type);
0f113f3e 2044int ssl3_send_alert(SSL *s, int level, int desc);
4bcdb4a6 2045__owur int ssl3_generate_master_secret(SSL *s, unsigned char *out,
8c1a5343
MC
2046 unsigned char *p, size_t len,
2047 size_t *secret_size);
28ff8ef3 2048__owur int ssl3_get_req_cert_type(SSL *s, WPACKET *pkt);
4bcdb4a6
MC
2049__owur int ssl3_num_ciphers(void);
2050__owur const SSL_CIPHER *ssl3_get_cipher(unsigned int u);
0f113f3e 2051int ssl3_renegotiate(SSL *ssl);
c7f47786 2052int ssl3_renegotiate_check(SSL *ssl, int initok);
4bcdb4a6 2053__owur int ssl3_dispatch_alert(SSL *s);
6db6bc5a 2054__owur size_t ssl3_final_finish_mac(SSL *s, const char *sender, size_t slen,
12472b45 2055 unsigned char *p);
7ee8627f 2056__owur int ssl3_finish_mac(SSL *s, const unsigned char *buf, size_t len);
81025661 2057void ssl3_free_digest_list(SSL *s);
7cea05dc 2058__owur unsigned long ssl3_output_cert_chain(SSL *s, WPACKET *pkt,
e96e0f8e 2059 CERT_PKEY *cpk, int *al);
4a640fb6
DSH
2060__owur const SSL_CIPHER *ssl3_choose_cipher(SSL *ssl,
2061 STACK_OF(SSL_CIPHER) *clnt,
2062 STACK_OF(SSL_CIPHER) *srvr);
124037fd 2063__owur int ssl3_digest_cached_records(SSL *s, int keep);
4bcdb4a6 2064__owur int ssl3_new(SSL *s);
0f113f3e 2065void ssl3_free(SSL *s);
54105ddd
MC
2066__owur int ssl3_read(SSL *s, void *buf, size_t len, size_t *readbytes);
2067__owur int ssl3_peek(SSL *s, void *buf, size_t len, size_t *readbytes);
7ee8627f 2068__owur int ssl3_write(SSL *s, const void *buf, size_t len, size_t *written);
4bcdb4a6 2069__owur int ssl3_shutdown(SSL *s);
0f113f3e 2070void ssl3_clear(SSL *s);
4bcdb4a6
MC
2071__owur long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg);
2072__owur long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg);
2073__owur long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
2074__owur long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void));
d02b48c6 2075
4bcdb4a6
MC
2076__owur int ssl3_do_change_cipher_spec(SSL *ssl);
2077__owur long ssl3_default_timeout(void);
f3b656b2 2078
a29fa98c 2079__owur int ssl3_set_handshake_header(SSL *s, WPACKET *pkt, int htype);
4a01c59f 2080__owur int tls_close_construct_packet(SSL *s, WPACKET *pkt, int htype);
c7f47786 2081__owur int tls_setup_handshake(SSL *s);
a29fa98c 2082__owur int dtls1_set_handshake_header(SSL *s, WPACKET *pkt, int htype);
4a01c59f 2083__owur int dtls1_close_construct_packet(SSL *s, WPACKET *pkt, int htype);
4bcdb4a6
MC
2084__owur int ssl3_handshake_write(SSL *s);
2085
4bcdb4a6
MC
2086__owur int ssl_allow_compression(SSL *s);
2087
ccae4a15
FI
2088__owur int ssl_version_supported(const SSL *s, int version);
2089
4fa52141
VD
2090__owur int ssl_set_client_hello_version(SSL *s);
2091__owur int ssl_check_version_downgrade(SSL *s);
2092__owur int ssl_set_version_bound(int method_version, int version, int *bound);
1ab3836b 2093__owur int ssl_choose_server_version(SSL *s, CLIENTHELLO_MSG *hello);
4fa52141 2094__owur int ssl_choose_client_version(SSL *s, int version);
a230b26e
EK
2095int ssl_get_client_min_max_version(const SSL *s, int *min_version,
2096 int *max_version);
4fa52141 2097
4bcdb4a6
MC
2098__owur long tls1_default_timeout(void);
2099__owur int dtls1_do_write(SSL *s, int type);
4bcdb4a6 2100void dtls1_set_message_header(SSL *s,
a773b52a 2101 unsigned char mt,
d736bc1a
MC
2102 size_t len,
2103 size_t frag_off, size_t frag_len);
4bcdb4a6 2104
7ee8627f
MC
2105int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf_, size_t len,
2106 size_t *written);
4bcdb4a6 2107
4bcdb4a6
MC
2108__owur int dtls1_read_failed(SSL *s, int code);
2109__owur int dtls1_buffer_message(SSL *s, int ccs);
a773b52a 2110__owur int dtls1_retransmit_message(SSL *s, unsigned short seq, int *found);
4bcdb4a6 2111__owur int dtls1_get_queue_priority(unsigned short seq, int is_ccs);
17dd65e6 2112int dtls1_retransmit_buffered_messages(SSL *s);
f5c7f5df
MC
2113void dtls1_clear_received_buffer(SSL *s);
2114void dtls1_clear_sent_buffer(SSL *s);
0f113f3e
MC
2115void dtls1_get_message_header(unsigned char *data,
2116 struct hm_header_st *msg_hdr);
4bcdb4a6
MC
2117__owur long dtls1_default_timeout(void);
2118__owur struct timeval *dtls1_get_timeout(SSL *s, struct timeval *timeleft);
2119__owur int dtls1_check_timeout_num(SSL *s);
2120__owur int dtls1_handle_timeout(SSL *s);
9289f21b
DSH
2121void dtls1_start_timer(SSL *s);
2122void dtls1_stop_timer(SSL *s);
4bcdb4a6 2123__owur int dtls1_is_timer_expired(SSL *s);
9289f21b 2124void dtls1_double_timeout(SSL *s);
c536b6be 2125__owur int dtls_raw_hello_verify_request(WPACKET *pkt, unsigned char *cookie,
cb150cbc 2126 size_t cookie_len);
4bcdb4a6 2127__owur int dtls1_send_newsession_ticket(SSL *s);
7ee8627f 2128__owur size_t dtls1_min_mtu(SSL *s);
8a35dbb6 2129void dtls1_hm_fragment_free(hm_fragment *frag);
8ba708e5 2130__owur int dtls1_query_mtu(SSL *s);
480506bd 2131
4bcdb4a6 2132__owur int tls1_new(SSL *s);
58964a49
RE
2133void tls1_free(SSL *s);
2134void tls1_clear(SSL *s);
0f113f3e
MC
2135long tls1_ctrl(SSL *s, int cmd, long larg, void *parg);
2136long tls1_callback_ctrl(SSL *s, int cmd, void (*fp) (void));
58964a49 2137
4bcdb4a6 2138__owur int dtls1_new(SSL *s);
36d16f8e
BL
2139void dtls1_free(SSL *s);
2140void dtls1_clear(SSL *s);
0f113f3e 2141long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg);
4bcdb4a6 2142__owur int dtls1_shutdown(SSL *s);
36d16f8e 2143
4bcdb4a6 2144__owur int dtls1_dispatch_alert(SSL *s);
36d16f8e 2145
46417569 2146__owur int ssl_init_wbio_buffer(SSL *s);
413c4f45 2147void ssl_free_wbio_buffer(SSL *s);
58964a49 2148
4bcdb4a6
MC
2149__owur int tls1_change_cipher_state(SSL *s, int which);
2150__owur int tls1_setup_key_block(SSL *s);
6db6bc5a 2151__owur size_t tls1_final_finish_mac(SSL *s, const char *str, size_t slen,
12472b45 2152 unsigned char *p);
4bcdb4a6 2153__owur int tls1_generate_master_secret(SSL *s, unsigned char *out,
8c1a5343
MC
2154 unsigned char *p, size_t len,
2155 size_t *secret_size);
92760c21
MC
2156__owur int tls13_setup_key_block(SSL *s);
2157__owur size_t tls13_final_finish_mac(SSL *s, const char *str, size_t slen,
2158 unsigned char *p);
0d9824c1 2159__owur int tls13_change_cipher_state(SSL *s, int which);
ec15acb6
MC
2160__owur int tls13_hkdf_expand(SSL *s, const EVP_MD *md,
2161 const unsigned char *secret,
ace081c1
MC
2162 const unsigned char *label, size_t labellen,
2163 const unsigned char *hash,
2164 unsigned char *out, size_t outlen);
34574f19
MC
2165__owur int tls13_derive_key(SSL *s, const unsigned char *secret,
2166 unsigned char *key, size_t keylen);
2167__owur int tls13_derive_iv(SSL *s, const unsigned char *secret,
2168 unsigned char *iv, size_t ivlen);
ec15acb6
MC
2169__owur int tls13_derive_finishedkey(SSL *s, const EVP_MD *md,
2170 const unsigned char *secret,
2171 unsigned char *fin, size_t finlen);
2172int tls13_generate_secret(SSL *s, const EVP_MD *md,
2173 const unsigned char *prevsecret,
2174 const unsigned char *insecret,
2175 size_t insecretlen,
2176 unsigned char *outsecret);
34574f19
MC
2177__owur int tls13_generate_handshake_secret(SSL *s,
2178 const unsigned char *insecret,
2179 size_t insecretlen);
2180__owur int tls13_generate_master_secret(SSL *s, unsigned char *out,
2181 unsigned char *prev, size_t prevlen,
2182 size_t *secret_size);
4bcdb4a6 2183__owur int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen,
a230b26e
EK
2184 const char *label, size_t llen,
2185 const unsigned char *p, size_t plen,
2186 int use_context);
4bcdb4a6 2187__owur int tls1_alert_code(int code);
04904312 2188__owur int tls13_alert_code(int code);
4bcdb4a6
MC
2189__owur int ssl3_alert_code(int code);
2190__owur int ssl_ok(SSL *s);
58964a49 2191
10bf4fc2 2192# ifndef OPENSSL_NO_EC
4bcdb4a6 2193__owur int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s);
0f113f3e 2194# endif
41fdcfa7 2195
f73e07cf 2196SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
413c4f45 2197
0f113f3e 2198# ifndef OPENSSL_NO_EC
ec24630a
DSH
2199/* Flags values from tls1_ec_curve_id2nid() */
2200/* Mask for curve type */
2201# define TLS_CURVE_TYPE 0x3
2202# define TLS_CURVE_PRIME 0x0
2203# define TLS_CURVE_CHAR2 0x1
2204# define TLS_CURVE_CUSTOM 0x2
0dd7ba24
MC
2205
2206#define bytestogroup(bytes) ((unsigned int)(bytes[0] << 8 | bytes[1]))
2207
ec24630a 2208__owur int tls1_ec_curve_id2nid(int curve_id, unsigned int *pflags);
4bcdb4a6
MC
2209__owur int tls1_ec_nid2curve_id(int nid);
2210__owur int tls1_check_curve(SSL *s, const unsigned char *p, size_t len);
de4d764e
MC
2211__owur int tls1_shared_group(SSL *s, int nmatch);
2212__owur int tls1_set_groups(unsigned char **pext, size_t *pextlen,
a230b26e 2213 int *curves, size_t ncurves);
de4d764e 2214__owur int tls1_set_groups_list(unsigned char **pext, size_t *pextlen,
a230b26e 2215 const char *str);
7da160b0
MC
2216void tls1_get_formatlist(SSL *s, const unsigned char **pformats,
2217 size_t *num_formats);
4bcdb4a6 2218__owur int tls1_check_ec_tmp_key(SSL *s, unsigned long id);
0a699a07 2219__owur EVP_PKEY *ssl_generate_pkey_curve(int id);
0f113f3e 2220# endif /* OPENSSL_NO_EC */
33273721 2221
4bcdb4a6 2222__owur int tls1_shared_list(SSL *s,
a230b26e
EK
2223 const unsigned char *l1, size_t l1len,
2224 const unsigned char *l2, size_t l2len, int nmatch);
6b473aca
MC
2225__owur int tls_curve_allowed(SSL *s, const unsigned char *curve, int op);
2226__owur int tls1_get_curvelist(SSL *s, int sess, const unsigned char **pcurves,
2227 size_t *num_curves);
2228
a0f63828 2229void ssl_set_default_md(SSL *s);
4bcdb4a6 2230__owur int tls1_set_server_sigalgs(SSL *s);
ddf6ec00
MC
2231
2232/* Return codes for tls_get_ticket_from_client() and tls_decrypt_ticket() */
2233typedef enum ticket_en {
40f805ad 2234 /* fatal error, malloc failure */
ddf6ec00 2235 TICKET_FATAL_ERR_MALLOC,
40f805ad 2236 /* fatal error, either from parsing or decrypting the ticket */
ddf6ec00 2237 TICKET_FATAL_ERR_OTHER,
40f805ad 2238 /* No ticket present */
ddf6ec00 2239 TICKET_NONE,
40f805ad 2240 /* Empty ticket present */
ddf6ec00 2241 TICKET_EMPTY,
40f805ad 2242 /* the ticket couldn't be decrypted */
ddf6ec00 2243 TICKET_NO_DECRYPT,
40f805ad 2244 /* a ticket was successfully decrypted */
ddf6ec00 2245 TICKET_SUCCESS,
40f805ad 2246 /* same as above but the ticket needs to be reneewed */
ddf6ec00
MC
2247 TICKET_SUCCESS_RENEW
2248} TICKET_RETURN;
2249
2250__owur TICKET_RETURN tls_get_ticket_from_client(SSL *s, CLIENTHELLO_MSG *hello,
2251 SSL_SESSION **ret);
2252__owur TICKET_RETURN tls_decrypt_ticket(SSL *s, const unsigned char *etick,
2253 size_t eticklen,
2254 const unsigned char *sess_id,
2255 size_t sesslen, SSL_SESSION **psess);
1053a6e2 2256
7da160b0 2257__owur int tls_use_ticket(SSL *s);
a2f9200f 2258
536199ec 2259__owur int tls12_get_sigandhash(SSL *s, WPACKET *pkt, const EVP_PKEY *pk,
fe3066ee 2260 const EVP_MD *md, int *ispss);
90d9e49a 2261void ssl_set_sig_mask(uint32_t *pmask_a, SSL *s, int op);
a2f9200f 2262
4bcdb4a6 2263__owur int tls1_set_sigalgs_list(CERT *c, const char *str, int client);
a230b26e
EK
2264__owur int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen,
2265 int client);
17dd65e6 2266int tls1_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain,
0f113f3e 2267 int idx);
d61ff83b 2268void tls1_set_cert_validity(SSL *s);
0f229cce 2269
a230b26e 2270# ifndef OPENSSL_NO_CT
4d482ee2 2271__owur int ssl_validate_ct(SSL *s);
a230b26e 2272# endif
ed29e82a 2273
0f113f3e 2274# ifndef OPENSSL_NO_DH
4bcdb4a6 2275__owur DH *ssl_get_auto_dh(SSL *s);
0f113f3e 2276# endif
b362ccab 2277
4bcdb4a6 2278__owur int ssl_security_cert(SSL *s, SSL_CTX *ctx, X509 *x, int vfy, int is_ee);
a230b26e
EK
2279__owur int ssl_security_cert_chain(SSL *s, STACK_OF(X509) *sk, X509 *ex,
2280 int vfy);
b362ccab 2281
4a419f60 2282int tls_choose_sigalg(SSL *s, int *al);
93a77f9e 2283
4bcdb4a6 2284__owur EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md);
b948e2c5 2285void ssl_clear_hash_ctx(EVP_MD_CTX **hash);
4bcdb4a6 2286__owur long ssl_get_algorithm2(SSL *s);
ae2f7b37 2287__owur int tls12_copy_sigalgs(SSL *s, WPACKET *pkt,
98c792d1 2288 const uint16_t *psig, size_t psiglen);
703bcee0 2289__owur int tls1_save_sigalgs(SSL *s, PACKET *pkt);
4bcdb4a6 2290__owur int tls1_process_sigalgs(SSL *s);
0972bc5c 2291__owur int tls1_set_peer_legacy_sigalg(SSL *s, const EVP_PKEY *pkey);
98c792d1 2292__owur size_t tls12_get_psigalgs(SSL *s, int sent, const uint16_t **psigs);
f742cda8 2293__owur int tls12_check_peer_sigalg(SSL *s, uint16_t, EVP_PKEY *pkey);
b7bfe69b 2294void ssl_set_client_disabled(SSL *s);
4bcdb4a6 2295__owur int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c, int op);
1c78c43b 2296
8c1a5343
MC
2297__owur int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen,
2298 size_t *hashlen);
152fbc28 2299__owur const EVP_MD *ssl_md(int idx);
28ba2541
DSH
2300__owur const EVP_MD *ssl_handshake_md(SSL *s);
2301__owur const EVP_MD *ssl_prf_md(SSL *s);
48fbcbac 2302
2faa1b48
CB
2303/*
2304 * ssl_log_rsa_client_key_exchange logs |premaster| to the SSL_CTX associated
2305 * with |ssl|, if logging is enabled. It returns one on success and zero on
2306 * failure. The entry is identified by the first 8 bytes of
2307 * |encrypted_premaster|.
2308 */
2309__owur int ssl_log_rsa_client_key_exchange(SSL *ssl,
2310 const uint8_t *encrypted_premaster,
2311 size_t encrypted_premaster_len,
2312 const uint8_t *premaster,
2313 size_t premaster_len);
2314
2c7bd692
CB
2315/*
2316 * ssl_log_secret logs |secret| to the SSL_CTX associated with |ssl|, if
2317 * logging is available. It returns one on success and zero on failure. It tags
2318 * the entry with |label|.
2faa1b48 2319 */
2c7bd692
CB
2320__owur int ssl_log_secret(SSL *ssl, const char *label,
2321 const uint8_t *secret, size_t secret_len);
2322
2323#define MASTER_SECRET_LABEL "CLIENT_RANDOM"
2324#define CLIENT_HANDSHAKE_LABEL "CLIENT_HANDSHAKE_TRAFFIC_SECRET"
2325#define SERVER_HANDSHAKE_LABEL "SERVER_HANDSHAKE_TRAFFIC_SECRET"
2326#define CLIENT_APPLICATION_LABEL "CLIENT_TRAFFIC_SECRET_0"
2327#define SERVER_APPLICATION_LABEL "SERVER_TRAFFIC_SECRET_0"
2faa1b48 2328
2acc020b 2329/* s3_cbc.c */
4bcdb4a6 2330__owur char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx);
5f3d93e4
MC
2331__owur int ssl3_cbc_digest_record(const EVP_MD_CTX *ctx,
2332 unsigned char *md_out,
2333 size_t *md_out_size,
2334 const unsigned char header[13],
2335 const unsigned char *data,
2336 size_t data_plus_mac_size,
2337 size_t data_plus_mac_plus_padding_size,
2338 const unsigned char *mac_secret,
d0e7c31d 2339 size_t mac_secret_length, char is_sslv3);
0f113f3e 2340
d166ed8c
DSH
2341__owur int tls_fips_digest_extra(const EVP_CIPHER_CTX *cipher_ctx,
2342 EVP_MD_CTX *mac_ctx, const unsigned char *data,
2343 size_t data_len, size_t orig_len);
0989790b 2344
57b272b0
DSH
2345__owur int srp_generate_server_master_secret(SSL *s);
2346__owur int srp_generate_client_master_secret(SSL *s);
4bcdb4a6 2347__owur int srp_verify_server_param(SSL *s, int *al);
0989790b 2348
ecf4d660
DSH
2349/* t1_ext.c */
2350
28ea0a0c
DSH
2351void custom_ext_init(custom_ext_methods *meths);
2352
4bcdb4a6 2353__owur int custom_ext_parse(SSL *s, int server,
a230b26e
EK
2354 unsigned int ext_type,
2355 const unsigned char *ext_data, size_t ext_size,
2356 int *al);
ae2f7b37 2357__owur int custom_ext_add(SSL *s, int server, WPACKET *pkt, int *al);
a230b26e
EK
2358
2359__owur int custom_exts_copy(custom_ext_methods *dst,
2360 const custom_ext_methods *src);
ecf4d660
DSH
2361void custom_exts_free(custom_ext_methods *exts);
2362
b3599dbb 2363void ssl_comp_free_compression_methods_int(void);
03b0e735 2364
0f113f3e 2365# else
e0fc7961 2366
0f113f3e
MC
2367# define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer
2368# define ssl3_setup_buffers SSL_test_functions()->p_ssl3_setup_buffers
c4e6fb15 2369
0f113f3e 2370# endif
e0fc7961 2371#endif