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/*
* ntp_md5.h: deal with md5.h headers
*
* Use the system MD5 if available, otherwise libisc's.
*/
#ifndef NTP_MD5_H
#define NTP_MD5_H
# define KEY_TYPE_MD5 NID_md5
#ifdef OPENSSL
# include <openssl/evp.h>
# include "libssl_compat.h"
# ifdef HAVE_OPENSSL_CMAC_H
# include <openssl/cmac.h>
# define CMAC "AES128CMAC"
# define AES_128_KEY_SIZE 16
# endif /*HAVE_OPENSSL_CMAC_H*/
#else /* !OPENSSL follows */
/*
* Provide OpenSSL-alike MD5 API if we're not using OpenSSL
*/
# if defined HAVE_MD5_H && defined HAVE_MD5INIT
# include <md5.h>
# else
# include "isc/md5.h"
typedef isc_md5_t MD5_CTX;
# define MD5Init(c) isc_md5_init(c)
# define MD5Update(c, p, s) isc_md5_update(c, p, s)
# define MD5Final(d, c) isc_md5_final((c), (d)) /* swapped */
# endif
typedef MD5_CTX EVP_MD_CTX;
# define NID_md5 4 /* from openssl/objects.h */
# define EVP_MAX_MD_SIZE 64 /* from openssl/evp.h */
# define EVP_MD_CTX_free(c) free(c)
# define EVP_MD_CTX_new() calloc(1, sizeof(MD5_CTX))
# define EVP_get_digestbynid(t) NULL
# define EVP_md5() NULL
# define EVP_MD_CTX_init(c)
# define EVP_MD_CTX_set_flags(c, f)
# define EVP_DigestInit(c, dt) (MD5Init(c), 1)
# define EVP_DigestInit_ex(c, dt, i) (MD5Init(c), 1)
# define EVP_DigestUpdate(c, p, s) MD5Update(c, (const void *)(p), \
s)
# define EVP_DigestFinal(c, d, pdl) \
do { \
MD5Final((d), (c)); \
*(pdl) = 16; \
} while (0)
# endif /* !OPENSSL */
#endif /* NTP_MD5_H */
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