summaryrefslogtreecommitdiff
path: root/openbsd-compat/openssl-compat.h
blob: c5fc24eb4b71590e5ad24bf8dd168e47b20b50d3 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
/* $Id: openssl-compat.h,v 1.19 2011/05/10 01:13:38 dtucker Exp $ */

/*
 * Copyright (c) 2005 Darren Tucker <dtucker@zip.com.au>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#include "includes.h"
#include <openssl/opensslv.h>
#include <openssl/evp.h>
#include <openssl/rsa.h>
#include <openssl/dsa.h>

/* Only in 0.9.8 */
#ifndef OPENSSL_DSA_MAX_MODULUS_BITS
# define OPENSSL_DSA_MAX_MODULUS_BITS        10000
#endif
#ifndef OPENSSL_RSA_MAX_MODULUS_BITS
# define OPENSSL_RSA_MAX_MODULUS_BITS        16384
#endif

/* OPENSSL_free() is Free() in versions before OpenSSL 0.9.6 */
#if !defined(OPENSSL_VERSION_NUMBER) || (OPENSSL_VERSION_NUMBER < 0x0090600f)
# define OPENSSL_free(x) Free(x)
#endif

#if OPENSSL_VERSION_NUMBER < 0x00906000L
# define SSH_OLD_EVP
# define EVP_CIPHER_CTX_get_app_data(e)		((e)->app_data)
#endif

#if OPENSSL_VERSION_NUMBER < 0x1000000fL
# define LIBCRYPTO_EVP_INL_TYPE unsigned int
#else
# define LIBCRYPTO_EVP_INL_TYPE size_t
#endif

#if (OPENSSL_VERSION_NUMBER < 0x00907000L) || defined(OPENSSL_LOBOTOMISED_AES)
# define USE_BUILTIN_RIJNDAEL
#endif

#ifdef USE_BUILTIN_RIJNDAEL
# include "rijndael.h"
# define AES_KEY rijndael_ctx
# define AES_BLOCK_SIZE 16
# define AES_encrypt(a, b, c)		rijndael_encrypt(c, a, b)
# define AES_set_encrypt_key(a, b, c)	rijndael_set_key(c, (char *)a, b, 1)
# define EVP_aes_128_cbc evp_rijndael
# define EVP_aes_192_cbc evp_rijndael
# define EVP_aes_256_cbc evp_rijndael
extern const EVP_CIPHER *evp_rijndael(void);
extern void ssh_rijndael_iv(EVP_CIPHER_CTX *, int, u_char *, u_int);
#endif

#if !defined(EVP_CTRL_SET_ACSS_MODE)
# if (OPENSSL_VERSION_NUMBER >= 0x00907000L)
#  define USE_CIPHER_ACSS 1
extern const EVP_CIPHER *evp_acss(void);
#  define EVP_acss evp_acss
# else
#  define EVP_acss NULL
# endif
#endif

/* OpenSSL 0.9.8e returns cipher key len not context key len */
#if (OPENSSL_VERSION_NUMBER == 0x0090805fL)
# define EVP_CIPHER_CTX_key_length(c) ((c)->key_len)
#endif

#ifndef HAVE_RSA_GET_DEFAULT_METHOD
RSA_METHOD *RSA_get_default_method(void);
#endif

/*
 * We overload some of the OpenSSL crypto functions with ssh_* equivalents
 * which cater for older and/or less featureful OpenSSL version.
 *
 * In order for the compat library to call the real functions, it must
 * define SSH_DONT_OVERLOAD_OPENSSL_FUNCS before including this file and
 * implement the ssh_* equivalents.
 */
#ifndef SSH_DONT_OVERLOAD_OPENSSL_FUNCS

# ifdef SSH_OLD_EVP
#  ifdef EVP_Cipher
#   undef EVP_Cipher
#  endif
#  define EVP_CipherInit(a,b,c,d,e)	ssh_EVP_CipherInit((a),(b),(c),(d),(e))
#  define EVP_Cipher(a,b,c,d)		ssh_EVP_Cipher((a),(b),(c),(d))
#  define EVP_CIPHER_CTX_cleanup(a)	ssh_EVP_CIPHER_CTX_cleanup((a))
# endif /* SSH_OLD_EVP */

# ifdef OPENSSL_EVP_DIGESTUPDATE_VOID
#  define EVP_DigestUpdate(a,b,c)	ssh_EVP_DigestUpdate((a),(b),(c))
#  endif

# ifdef USE_OPENSSL_ENGINE
#  ifdef OpenSSL_add_all_algorithms
#   undef OpenSSL_add_all_algorithms
#  endif
#  define OpenSSL_add_all_algorithms()  ssh_OpenSSL_add_all_algorithms()
# endif

# ifndef HAVE_BN_IS_PRIME_EX
int BN_is_prime_ex(const BIGNUM *, int, BN_CTX *, void *);
# endif

# ifndef HAVE_DSA_GENERATE_PARAMETERS_EX
int DSA_generate_parameters_ex(DSA *, int, const unsigned char *, int, int *,
    unsigned long *, void *);
# endif

# ifndef HAVE_RSA_GENERATE_KEY_EX
int RSA_generate_key_ex(RSA *, int, BIGNUM *, void *);
# endif

int ssh_EVP_CipherInit(EVP_CIPHER_CTX *, const EVP_CIPHER *, unsigned char *,
    unsigned char *, int);
int ssh_EVP_Cipher(EVP_CIPHER_CTX *, char *, char *, int);
int ssh_EVP_CIPHER_CTX_cleanup(EVP_CIPHER_CTX *);
void ssh_OpenSSL_add_all_algorithms(void);
#endif	/* SSH_DONT_OVERLOAD_OPENSSL_FUNCS */