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/* Use the system MD5 or fall back on libisc's */ 10# if defined HAVE_MD5_H && defined HAVE_MD5INIT 11# include <md5.h> 12# else 13# include "isc/md5.h" 14 typedef isc_md5_t MD5_CTX; 15# define MD5_DIGEST_LENGTH ISC_MD5_DIGESTLENGTH 16# define MD5Init(c) isc_md5_init(c) 17# define MD5Update(c, p, s) isc_md5_update(c, (const void *)p, s) 18# define MD5Final(d, c) isc_md5_final((c), (d)) /* swapped */ 19# endif 20 21# define KEY_TYPE_MD5 NID_md5 22 23#ifdef OPENSSL 24# include <openssl/evp.h> 25# include "libssl_compat.h" 26# ifdef HAVE_OPENSSL_CMAC_H 27# include <openssl/cmac.h> 28# define CMAC "AES128CMAC" 29# define AES_128_KEY_SIZE 16 30# endif /*HAVE_OPENSSL_CMAC_H*/ 31#else /* !OPENSSL follows */ 32/* 33 * Provide OpenSSL-alike MD5 API if we're not using OpenSSL 34 */ 35 36 typedef MD5_CTX EVP_MD_CTX; 37 38# define NID_md5 4 /* from openssl/objects.h */ 39# define EVP_MAX_MD_SIZE MD5_DIGEST_LENGTH 40# define EVP_MD_CTX_free(c) free(c) 41# define EVP_MD_CTX_new() calloc(1, sizeof(MD5_CTX)) 42# define EVP_get_digestbynid(t) NULL 43# define EVP_md5() NULL 44# define EVP_MD_CTX_init(c) 45# define EVP_MD_CTX_set_flags(c, f) 46# define EVP_DigestInit(c, dt) (MD5Init(c), 1) 47# define EVP_DigestInit_ex(c, dt, i) (MD5Init(c), 1) 48# define EVP_DigestUpdate(c, p, s) MD5Update(c, (const void *)(p), \ 49 s) 50# define EVP_DigestFinal(c, d, pdl) \ 51 do { \ 52 MD5Final((d), (c)); \ 53 *(pdl) = MD5_LENGTH; \ 54 } while (0) 55# endif /* !OPENSSL */ 56#endif /* NTP_MD5_H */ 57