1/*
2 * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved
4 *
5 * Licensed under the Apache License 2.0 (the "License"). You may not use
6 * this file except in compliance with the License. You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
9 */
10
11#ifndef OPENSSL_SSL3_H
12# define OPENSSL_SSL3_H
13# pragma once
14
15# include <openssl/macros.h>
16# ifndef OPENSSL_NO_DEPRECATED_3_0
17# define HEADER_SSL3_H
18# endif
19
20# include <openssl/comp.h>
21# include <openssl/buffer.h>
22# include <openssl/evp.h>
23# include <openssl/ssl.h>
24
25#ifdef __cplusplus
26extern "C" {
27#endif
28
29/*
30 * Signalling cipher suite value from RFC 5746
31 * (TLS_EMPTY_RENEGOTIATION_INFO_SCSV)
32 */
33# define SSL3_CK_SCSV 0x030000FF
34
35/*
36 * Signalling cipher suite value from draft-ietf-tls-downgrade-scsv-00
37 * (TLS_FALLBACK_SCSV)
38 */
39# define SSL3_CK_FALLBACK_SCSV 0x03005600
40
41# define SSL3_CK_RSA_NULL_MD5 0x03000001
42# define SSL3_CK_RSA_NULL_SHA 0x03000002
43# define SSL3_CK_RSA_RC4_40_MD5 0x03000003
44# define SSL3_CK_RSA_RC4_128_MD5 0x03000004
45# define SSL3_CK_RSA_RC4_128_SHA 0x03000005
46# define SSL3_CK_RSA_RC2_40_MD5 0x03000006
47# define SSL3_CK_RSA_IDEA_128_SHA 0x03000007
48# define SSL3_CK_RSA_DES_40_CBC_SHA 0x03000008
49# define SSL3_CK_RSA_DES_64_CBC_SHA 0x03000009
50# define SSL3_CK_RSA_DES_192_CBC3_SHA 0x0300000A
51
52# define SSL3_CK_DH_DSS_DES_40_CBC_SHA 0x0300000B
53# define SSL3_CK_DH_DSS_DES_64_CBC_SHA 0x0300000C
54# define SSL3_CK_DH_DSS_DES_192_CBC3_SHA 0x0300000D
55# define SSL3_CK_DH_RSA_DES_40_CBC_SHA 0x0300000E
56# define SSL3_CK_DH_RSA_DES_64_CBC_SHA 0x0300000F
57# define SSL3_CK_DH_RSA_DES_192_CBC3_SHA 0x03000010
58
59# define SSL3_CK_DHE_DSS_DES_40_CBC_SHA 0x03000011
60# define SSL3_CK_EDH_DSS_DES_40_CBC_SHA SSL3_CK_DHE_DSS_DES_40_CBC_SHA
61# define SSL3_CK_DHE_DSS_DES_64_CBC_SHA 0x03000012
62# define SSL3_CK_EDH_DSS_DES_64_CBC_SHA SSL3_CK_DHE_DSS_DES_64_CBC_SHA
63# define SSL3_CK_DHE_DSS_DES_192_CBC3_SHA 0x03000013
64# define SSL3_CK_EDH_DSS_DES_192_CBC3_SHA SSL3_CK_DHE_DSS_DES_192_CBC3_SHA
65# define SSL3_CK_DHE_RSA_DES_40_CBC_SHA 0x03000014
66# define SSL3_CK_EDH_RSA_DES_40_CBC_SHA SSL3_CK_DHE_RSA_DES_40_CBC_SHA
67# define SSL3_CK_DHE_RSA_DES_64_CBC_SHA 0x03000015
68# define SSL3_CK_EDH_RSA_DES_64_CBC_SHA SSL3_CK_DHE_RSA_DES_64_CBC_SHA
69# define SSL3_CK_DHE_RSA_DES_192_CBC3_SHA 0x03000016
70# define SSL3_CK_EDH_RSA_DES_192_CBC3_SHA SSL3_CK_DHE_RSA_DES_192_CBC3_SHA
71
72# define SSL3_CK_ADH_RC4_40_MD5 0x03000017
73# define SSL3_CK_ADH_RC4_128_MD5 0x03000018
74# define SSL3_CK_ADH_DES_40_CBC_SHA 0x03000019
75# define SSL3_CK_ADH_DES_64_CBC_SHA 0x0300001A
76# define SSL3_CK_ADH_DES_192_CBC_SHA 0x0300001B
77
78/* a bundle of RFC standard cipher names, generated from ssl3_ciphers[] */
79# define SSL3_RFC_RSA_NULL_MD5 "TLS_RSA_WITH_NULL_MD5"
80# define SSL3_RFC_RSA_NULL_SHA "TLS_RSA_WITH_NULL_SHA"
81# define SSL3_RFC_RSA_DES_192_CBC3_SHA "TLS_RSA_WITH_3DES_EDE_CBC_SHA"
82# define SSL3_RFC_DHE_DSS_DES_192_CBC3_SHA "TLS_DHE_DSS_WITH_3DES_EDE_CBC_SHA"
83# define SSL3_RFC_DHE_RSA_DES_192_CBC3_SHA "TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA"
84# define SSL3_RFC_ADH_DES_192_CBC_SHA "TLS_DH_anon_WITH_3DES_EDE_CBC_SHA"
85# define SSL3_RFC_RSA_IDEA_128_SHA "TLS_RSA_WITH_IDEA_CBC_SHA"
86# define SSL3_RFC_RSA_RC4_128_MD5 "TLS_RSA_WITH_RC4_128_MD5"
87# define SSL3_RFC_RSA_RC4_128_SHA "TLS_RSA_WITH_RC4_128_SHA"
88# define SSL3_RFC_ADH_RC4_128_MD5 "TLS_DH_anon_WITH_RC4_128_MD5"
89
90# define SSL3_TXT_RSA_NULL_MD5 "NULL-MD5"
91# define SSL3_TXT_RSA_NULL_SHA "NULL-SHA"
92# define SSL3_TXT_RSA_RC4_40_MD5 "EXP-RC4-MD5"
93# define SSL3_TXT_RSA_RC4_128_MD5 "RC4-MD5"
94# define SSL3_TXT_RSA_RC4_128_SHA "RC4-SHA"
95# define SSL3_TXT_RSA_RC2_40_MD5 "EXP-RC2-CBC-MD5"
96# define SSL3_TXT_RSA_IDEA_128_SHA "IDEA-CBC-SHA"
97# define SSL3_TXT_RSA_DES_40_CBC_SHA "EXP-DES-CBC-SHA"
98# define SSL3_TXT_RSA_DES_64_CBC_SHA "DES-CBC-SHA"
99# define SSL3_TXT_RSA_DES_192_CBC3_SHA "DES-CBC3-SHA"
100
101# define SSL3_TXT_DH_DSS_DES_40_CBC_SHA "EXP-DH-DSS-DES-CBC-SHA"
102# define SSL3_TXT_DH_DSS_DES_64_CBC_SHA "DH-DSS-DES-CBC-SHA"
103# define SSL3_TXT_DH_DSS_DES_192_CBC3_SHA "DH-DSS-DES-CBC3-SHA"
104# define SSL3_TXT_DH_RSA_DES_40_CBC_SHA "EXP-DH-RSA-DES-CBC-SHA"
105# define SSL3_TXT_DH_RSA_DES_64_CBC_SHA "DH-RSA-DES-CBC-SHA"
106# define SSL3_TXT_DH_RSA_DES_192_CBC3_SHA "DH-RSA-DES-CBC3-SHA"
107
108# define SSL3_TXT_DHE_DSS_DES_40_CBC_SHA "EXP-DHE-DSS-DES-CBC-SHA"
109# define SSL3_TXT_DHE_DSS_DES_64_CBC_SHA "DHE-DSS-DES-CBC-SHA"
110# define SSL3_TXT_DHE_DSS_DES_192_CBC3_SHA "DHE-DSS-DES-CBC3-SHA"
111# define SSL3_TXT_DHE_RSA_DES_40_CBC_SHA "EXP-DHE-RSA-DES-CBC-SHA"
112# define SSL3_TXT_DHE_RSA_DES_64_CBC_SHA "DHE-RSA-DES-CBC-SHA"
113# define SSL3_TXT_DHE_RSA_DES_192_CBC3_SHA "DHE-RSA-DES-CBC3-SHA"
114
115/*
116 * This next block of six "EDH" labels is for backward compatibility with
117 * older versions of OpenSSL. New code should use the six "DHE" labels above
118 * instead:
119 */
120# define SSL3_TXT_EDH_DSS_DES_40_CBC_SHA "EXP-EDH-DSS-DES-CBC-SHA"
121# define SSL3_TXT_EDH_DSS_DES_64_CBC_SHA "EDH-DSS-DES-CBC-SHA"
122# define SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA "EDH-DSS-DES-CBC3-SHA"
123# define SSL3_TXT_EDH_RSA_DES_40_CBC_SHA "EXP-EDH-RSA-DES-CBC-SHA"
124# define SSL3_TXT_EDH_RSA_DES_64_CBC_SHA "EDH-RSA-DES-CBC-SHA"
125# define SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA "EDH-RSA-DES-CBC3-SHA"
126
127# define SSL3_TXT_ADH_RC4_40_MD5 "EXP-ADH-RC4-MD5"
128# define SSL3_TXT_ADH_RC4_128_MD5 "ADH-RC4-MD5"
129# define SSL3_TXT_ADH_DES_40_CBC_SHA "EXP-ADH-DES-CBC-SHA"
130# define SSL3_TXT_ADH_DES_64_CBC_SHA "ADH-DES-CBC-SHA"
131# define SSL3_TXT_ADH_DES_192_CBC_SHA "ADH-DES-CBC3-SHA"
132
133# define SSL3_SSL_SESSION_ID_LENGTH 32
134# define SSL3_MAX_SSL_SESSION_ID_LENGTH 32
135
136# define SSL3_MASTER_SECRET_SIZE 48
137# define SSL3_RANDOM_SIZE 32
138# define SSL3_SESSION_ID_SIZE 32
139# define SSL3_RT_HEADER_LENGTH 5
140
141# define SSL3_HM_HEADER_LENGTH 4
142
143# ifndef SSL3_ALIGN_PAYLOAD
144 /*
145 * Some will argue that this increases memory footprint, but it's not
146 * actually true. Point is that malloc has to return at least 64-bit aligned
147 * pointers, meaning that allocating 5 bytes wastes 3 bytes in either case.
148 * Suggested pre-gaping simply moves these wasted bytes from the end of
149 * allocated region to its front, but makes data payload aligned, which
150 * improves performance:-)
151 */
152# define SSL3_ALIGN_PAYLOAD 8
153# else
154# if (SSL3_ALIGN_PAYLOAD&(SSL3_ALIGN_PAYLOAD-1))!=0
155# error "insane SSL3_ALIGN_PAYLOAD"
156# undef SSL3_ALIGN_PAYLOAD
157# endif
158# endif
159
160/*
161 * This is the maximum MAC (digest) size used by the SSL library. Currently
162 * maximum of 20 is used by SHA1, but we reserve for future extension for
163 * 512-bit hashes.
164 */
165
166# define SSL3_RT_MAX_MD_SIZE 64
167
168/*
169 * Maximum block size used in all ciphersuites. Currently 16 for AES.
170 */
171
172# define SSL_RT_MAX_CIPHER_BLOCK_SIZE 16
173
174# define SSL3_RT_MAX_EXTRA (16384)
175
176/* Maximum plaintext length: defined by SSL/TLS standards */
177# define SSL3_RT_MAX_PLAIN_LENGTH 16384
178/* Maximum compression overhead: defined by SSL/TLS standards */
179# define SSL3_RT_MAX_COMPRESSED_OVERHEAD 1024
180
181/*
182 * The standards give a maximum encryption overhead of 1024 bytes. In
183 * practice the value is lower than this. The overhead is the maximum number
184 * of padding bytes (256) plus the mac size.
185 */
186# define SSL3_RT_MAX_ENCRYPTED_OVERHEAD (256 + SSL3_RT_MAX_MD_SIZE)
187# define SSL3_RT_MAX_TLS13_ENCRYPTED_OVERHEAD 256
188
189/*
190 * OpenSSL currently only uses a padding length of at most one block so the
191 * send overhead is smaller.
192 */
193
194# define SSL3_RT_SEND_MAX_ENCRYPTED_OVERHEAD \
195 (SSL_RT_MAX_CIPHER_BLOCK_SIZE + SSL3_RT_MAX_MD_SIZE)
196
197/* If compression isn't used don't include the compression overhead */
198
199# ifdef OPENSSL_NO_COMP
200# define SSL3_RT_MAX_COMPRESSED_LENGTH SSL3_RT_MAX_PLAIN_LENGTH
201# else
202# define SSL3_RT_MAX_COMPRESSED_LENGTH \
203 (SSL3_RT_MAX_PLAIN_LENGTH+SSL3_RT_MAX_COMPRESSED_OVERHEAD)
204# endif
205# define SSL3_RT_MAX_ENCRYPTED_LENGTH \
206 (SSL3_RT_MAX_ENCRYPTED_OVERHEAD+SSL3_RT_MAX_COMPRESSED_LENGTH)
207# define SSL3_RT_MAX_TLS13_ENCRYPTED_LENGTH \
208 (SSL3_RT_MAX_PLAIN_LENGTH + SSL3_RT_MAX_TLS13_ENCRYPTED_OVERHEAD)
209# define SSL3_RT_MAX_PACKET_SIZE \
210 (SSL3_RT_MAX_ENCRYPTED_LENGTH+SSL3_RT_HEADER_LENGTH)
211
212# define SSL3_MD_CLIENT_FINISHED_CONST "\x43\x4C\x4E\x54"
213# define SSL3_MD_SERVER_FINISHED_CONST "\x53\x52\x56\x52"
214
215/* SSL3_VERSION is defined in prov_ssl.h */
216# define SSL3_VERSION_MAJOR 0x03
217# define SSL3_VERSION_MINOR 0x00
218
219# define SSL3_RT_CHANGE_CIPHER_SPEC 20
220# define SSL3_RT_ALERT 21
221# define SSL3_RT_HANDSHAKE 22
222# define SSL3_RT_APPLICATION_DATA 23
223
224/* Pseudo content types to indicate additional parameters */
225# define TLS1_RT_CRYPTO 0x1000
226# define TLS1_RT_CRYPTO_PREMASTER (TLS1_RT_CRYPTO | 0x1)
227# define TLS1_RT_CRYPTO_CLIENT_RANDOM (TLS1_RT_CRYPTO | 0x2)
228# define TLS1_RT_CRYPTO_SERVER_RANDOM (TLS1_RT_CRYPTO | 0x3)
229# define TLS1_RT_CRYPTO_MASTER (TLS1_RT_CRYPTO | 0x4)
230
231# define TLS1_RT_CRYPTO_READ 0x0000
232# define TLS1_RT_CRYPTO_WRITE 0x0100
233# define TLS1_RT_CRYPTO_MAC (TLS1_RT_CRYPTO | 0x5)
234# define TLS1_RT_CRYPTO_KEY (TLS1_RT_CRYPTO | 0x6)
235# define TLS1_RT_CRYPTO_IV (TLS1_RT_CRYPTO | 0x7)
236# define TLS1_RT_CRYPTO_FIXED_IV (TLS1_RT_CRYPTO | 0x8)
237
238/* Pseudo content types for SSL/TLS header info */
239# define SSL3_RT_HEADER 0x100
240# define SSL3_RT_INNER_CONTENT_TYPE 0x101
241
242# define SSL3_AL_WARNING 1
243# define SSL3_AL_FATAL 2
244
245# define SSL3_AD_CLOSE_NOTIFY 0
246# define SSL3_AD_UNEXPECTED_MESSAGE 10/* fatal */
247# define SSL3_AD_BAD_RECORD_MAC 20/* fatal */
248# define SSL3_AD_DECOMPRESSION_FAILURE 30/* fatal */
249# define SSL3_AD_HANDSHAKE_FAILURE 40/* fatal */
250# define SSL3_AD_NO_CERTIFICATE 41
251# define SSL3_AD_BAD_CERTIFICATE 42
252# define SSL3_AD_UNSUPPORTED_CERTIFICATE 43
253# define SSL3_AD_CERTIFICATE_REVOKED 44
254# define SSL3_AD_CERTIFICATE_EXPIRED 45
255# define SSL3_AD_CERTIFICATE_UNKNOWN 46
256# define SSL3_AD_ILLEGAL_PARAMETER 47/* fatal */
257
258# define TLS1_HB_REQUEST 1
259# define TLS1_HB_RESPONSE 2
260
261
262# define SSL3_CT_RSA_SIGN 1
263# define SSL3_CT_DSS_SIGN 2
264# define SSL3_CT_RSA_FIXED_DH 3
265# define SSL3_CT_DSS_FIXED_DH 4
266# define SSL3_CT_RSA_EPHEMERAL_DH 5
267# define SSL3_CT_DSS_EPHEMERAL_DH 6
268# define SSL3_CT_FORTEZZA_DMS 20
269/*
270 * SSL3_CT_NUMBER is used to size arrays and it must be large enough to
271 * contain all of the cert types defined for *either* SSLv3 and TLSv1.
272 */
273# define SSL3_CT_NUMBER 12
274
275# if defined(TLS_CT_NUMBER)
276# if TLS_CT_NUMBER != SSL3_CT_NUMBER
277# error "SSL/TLS CT_NUMBER values do not match"
278# endif
279# endif
280
281/* No longer used as of OpenSSL 1.1.1 */
282# define SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS 0x0001
283
284/* Removed from OpenSSL 1.1.0 */
285# define TLS1_FLAGS_TLS_PADDING_BUG 0x0
286
287# define TLS1_FLAGS_SKIP_CERT_VERIFY 0x0010
288
289/* Set if we encrypt then mac instead of usual mac then encrypt */
290# define TLS1_FLAGS_ENCRYPT_THEN_MAC_READ 0x0100
291# define TLS1_FLAGS_ENCRYPT_THEN_MAC TLS1_FLAGS_ENCRYPT_THEN_MAC_READ
292
293/* Set if extended master secret extension received from peer */
294# define TLS1_FLAGS_RECEIVED_EXTMS 0x0200
295
296# define TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE 0x0400
297
298# define TLS1_FLAGS_STATELESS 0x0800
299
300/* Set if extended master secret extension required on renegotiation */
301# define TLS1_FLAGS_REQUIRED_EXTMS 0x1000
302
303# define SSL3_MT_HELLO_REQUEST 0
304# define SSL3_MT_CLIENT_HELLO 1
305# define SSL3_MT_SERVER_HELLO 2
306# define SSL3_MT_NEWSESSION_TICKET 4
307# define SSL3_MT_END_OF_EARLY_DATA 5
308# define SSL3_MT_ENCRYPTED_EXTENSIONS 8
309# define SSL3_MT_CERTIFICATE 11
310# define SSL3_MT_SERVER_KEY_EXCHANGE 12
311# define SSL3_MT_CERTIFICATE_REQUEST 13
312# define SSL3_MT_SERVER_DONE 14
313# define SSL3_MT_CERTIFICATE_VERIFY 15
314# define SSL3_MT_CLIENT_KEY_EXCHANGE 16
315# define SSL3_MT_FINISHED 20
316# define SSL3_MT_CERTIFICATE_URL 21
317# define SSL3_MT_CERTIFICATE_STATUS 22
318# define SSL3_MT_SUPPLEMENTAL_DATA 23
319# define SSL3_MT_KEY_UPDATE 24
320# ifndef OPENSSL_NO_NEXTPROTONEG
321# define SSL3_MT_NEXT_PROTO 67
322# endif
323# define SSL3_MT_MESSAGE_HASH 254
324# define DTLS1_MT_HELLO_VERIFY_REQUEST 3
325
326/* Dummy message type for handling CCS like a normal handshake message */
327# define SSL3_MT_CHANGE_CIPHER_SPEC 0x0101
328
329# define SSL3_MT_CCS 1
330
331/* These are used when changing over to a new cipher */
332# define SSL3_CC_READ 0x001
333# define SSL3_CC_WRITE 0x002
334# define SSL3_CC_CLIENT 0x010
335# define SSL3_CC_SERVER 0x020
336# define SSL3_CC_EARLY 0x040
337# define SSL3_CC_HANDSHAKE 0x080
338# define SSL3_CC_APPLICATION 0x100
339# define SSL3_CHANGE_CIPHER_CLIENT_WRITE (SSL3_CC_CLIENT|SSL3_CC_WRITE)
340# define SSL3_CHANGE_CIPHER_SERVER_READ (SSL3_CC_SERVER|SSL3_CC_READ)
341# define SSL3_CHANGE_CIPHER_CLIENT_READ (SSL3_CC_CLIENT|SSL3_CC_READ)
342# define SSL3_CHANGE_CIPHER_SERVER_WRITE (SSL3_CC_SERVER|SSL3_CC_WRITE)
343
344#ifdef __cplusplus
345}
346#endif
347#endif
348

source code of include/openssl/ssl3.h