ntp_md5.h revision 338530 
1/*
2 * ntp_md5.h: deal with md5.h headers
3 *
4 * Use the system MD5 if available, otherwise libisc's.
5 */
6#ifndef NTP_MD5_H
7#define NTP_MD5_H
8
9#ifdef OPENSSL
10# include <openssl/evp.h>
11# include "libssl_compat.h"
12# ifdef HAVE_OPENSSL_CMAC_H
13#  include <openssl/cmac.h>
14#  define CMAC                  "AES128CMAC"
15#  define AES_128_KEY_SIZE      16
16# endif /*HAVE_OPENSSL_CMAC_H*/
17#else	/* !OPENSSL follows */
18/*
19 * Provide OpenSSL-alike MD5 API if we're not using OpenSSL
20 */
21# if defined HAVE_MD5_H && defined HAVE_MD5INIT
22#  include <md5.h>
23# else
24#  include "isc/md5.h"
25   typedef isc_md5_t		MD5_CTX;
26#  define MD5Init(c)		isc_md5_init(c)
27#  define MD5Update(c, p, s)	isc_md5_update(c, p, s)
28#  define MD5Final(d, c)	isc_md5_final((c), (d))	/* swapped */
29# endif
30
31  typedef MD5_CTX			EVP_MD_CTX;
32
33# define EVP_MD_CTX_free(c)		free(c)
34# define EVP_MD_CTX_new()		calloc(1, sizeof(MD5_CTX))
35# define EVP_get_digestbynid(t)		NULL
36# define EVP_md5()			NULL
37# define EVP_MD_CTX_init(c)
38# define EVP_MD_CTX_set_flags(c, f)
39# define EVP_DigestInit(c, dt)		(MD5Init(c), 1)
40# define EVP_DigestInit_ex(c, dt, i)	(MD5Init(c), 1)
41# define EVP_DigestUpdate(c, p, s)	MD5Update(c, (const void *)(p), \
42						  s)
43# define EVP_DigestFinal(c, d, pdl)	\
44	do {				\
45		MD5Final((d), (c));	\
46		*(pdl) = 16;		\
47	} while (0)
48# endif	/* !OPENSSL */
49#endif	/* NTP_MD5_H */
50