1132451Sroberto/*
2132451Sroberto * ntp_md5.h: deal with md5.h headers
3285612Sdelphij *
4285612Sdelphij * Use the system MD5 if available, otherwise libisc's.
5132451Sroberto */
6285612Sdelphij#ifndef NTP_MD5_H
7285612Sdelphij#define NTP_MD5_H
8132451Sroberto
9285612Sdelphij#ifdef OPENSSL
10338531Sdelphij# include <openssl/evp.h>
11316069Sdelphij# include "libssl_compat.h"
12338531Sdelphij# ifdef HAVE_OPENSSL_CMAC_H
13338531Sdelphij#  include <openssl/cmac.h>
14338531Sdelphij#  define CMAC                  "AES128CMAC"
15338531Sdelphij#  define AES_128_KEY_SIZE      16
16338531Sdelphij# endif /*HAVE_OPENSSL_CMAC_H*/
17285612Sdelphij#else	/* !OPENSSL follows */
18285612Sdelphij/*
19285612Sdelphij * Provide OpenSSL-alike MD5 API if we're not using OpenSSL
20285612Sdelphij */
21285612Sdelphij# if defined HAVE_MD5_H && defined HAVE_MD5INIT
22285612Sdelphij#  include <md5.h>
23285612Sdelphij# else
24285612Sdelphij#  include "isc/md5.h"
25285612Sdelphij   typedef isc_md5_t		MD5_CTX;
26285612Sdelphij#  define MD5Init(c)		isc_md5_init(c)
27285612Sdelphij#  define MD5Update(c, p, s)	isc_md5_update(c, p, s)
28285612Sdelphij#  define MD5Final(d, c)	isc_md5_final((c), (d))	/* swapped */
29285612Sdelphij# endif
30285612Sdelphij
31285612Sdelphij  typedef MD5_CTX			EVP_MD_CTX;
32316069Sdelphij
33316069Sdelphij# define EVP_MD_CTX_free(c)		free(c)
34316069Sdelphij# define EVP_MD_CTX_new()		calloc(1, sizeof(MD5_CTX))
35285612Sdelphij# define EVP_get_digestbynid(t)		NULL
36285612Sdelphij# define EVP_md5()			NULL
37285612Sdelphij# define EVP_MD_CTX_init(c)
38285612Sdelphij# define EVP_MD_CTX_set_flags(c, f)
39285612Sdelphij# define EVP_DigestInit(c, dt)		(MD5Init(c), 1)
40285612Sdelphij# define EVP_DigestInit_ex(c, dt, i)	(MD5Init(c), 1)
41285612Sdelphij# define EVP_DigestUpdate(c, p, s)	MD5Update(c, (const void *)(p), \
42285612Sdelphij						  s)
43285612Sdelphij# define EVP_DigestFinal(c, d, pdl)	\
44285612Sdelphij	do {				\
45285612Sdelphij		MD5Final((d), (c));	\
46285612Sdelphij		*(pdl) = 16;		\
47285612Sdelphij	} while (0)
48285612Sdelphij# endif	/* !OPENSSL */
49285612Sdelphij#endif	/* NTP_MD5_H */
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