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
|
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef FR_OPENSSL3_H
#define FR_OPENSSL3_H
/**
* $Id$
*
* @file openssl3.h
* @brief Wrappers to shut up OpenSSL3
*
* @copyright 2021 Network RADIUS SAS (legal@networkradius.com)
*/
RCSIDH(openssl3_h, "$Id$")
/*
* The HMAC APIs are deprecated in OpenSSL3. We don't want to
* fill the code with ifdef's, so we define some horrific
* wrappers here.
*
* This file should be included AFTER all OpenSSL header files.
*/
#ifdef HAVE_OPENSSL_SSL_H
#if OPENSSL_VERSION_NUMBER >= 0x30000000L
#include <string.h>
#include <openssl/evp.h>
#include <openssl/core_names.h>
typedef struct {
EVP_MAC *mac;
EVP_MAC_CTX *ctx;
} HMAC3_CTX;
#define HMAC_CTX HMAC3_CTX
#define HMAC_CTX_new HMAC3_CTX_new
static inline HMAC3_CTX *HMAC3_CTX_new(void)
{
HMAC3_CTX *h = calloc(1, sizeof(*h));
return h;
}
#define HMAC_Init_ex(_ctx, _key, _keylen, _md, _engine) HMAC3_Init_ex(_ctx, _key, _keylen, _md, _engine)
static inline int HMAC3_Init_ex(HMAC3_CTX *ctx, const unsigned char *key, unsigned int keylen, const EVP_MD *md, UNUSED void *engine)
{
OSSL_PARAM params[2], *p = params;
char const *name;
char *unconst;
ctx->mac = EVP_MAC_fetch(NULL, "HMAC", NULL);
if (!ctx->mac) return 0;
ctx->ctx = EVP_MAC_CTX_new(ctx->mac);
if (!ctx->ctx) return 0;
name = EVP_MD_get0_name(md);
memcpy(&unconst, &name, sizeof(name)); /* const issues */
p[0] = OSSL_PARAM_construct_utf8_string(OSSL_ALG_PARAM_DIGEST, unconst, 0);
p[1] = OSSL_PARAM_construct_end();
return EVP_MAC_init(ctx->ctx, key, keylen, params);
}
#define HMAC_Update HMAC3_Update
static inline int HMAC3_Update(HMAC3_CTX *ctx, const unsigned char *data, unsigned int datalen)
{
return EVP_MAC_update(ctx->ctx, data, datalen);
}
#define HMAC_Final HMAC3_Final
static inline int HMAC3_Final(HMAC3_CTX *ctx, unsigned char *out, unsigned int *len)
{
size_t mylen = *len;
if (!EVP_MAC_final(ctx->ctx, out, &mylen, mylen)) return 0;
*len = mylen;
return 1;
}
#define HMAC_CTX_free HMAC3_CTX_free
static inline void HMAC3_CTX_free(HMAC3_CTX *ctx)
{
if (!ctx) return;
EVP_MAC_free(ctx->mac);
EVP_MAC_CTX_free(ctx->ctx);
free(ctx);
}
#define HMAC_CTX_set_flags(_ctx, _flags)
#endif /* OPENSSL_VERSION_NUMBER */
#endif
#endif /* FR_OPENSSL3_H */
|
