1 /* $NetBSD: ntp_md5.h,v 1.10 2024/08/18 20:46:50 christos Exp $ */ 2 3 /* 4 * ntp_md5.h: deal with md5.h headers 5 * 6 * Use the system MD5 if available, otherwise libisc's. 7 */ 8 #ifndef NTP_MD5_H 9 #define NTP_MD5_H 10 11 /* Use the system MD5 or fall back on libisc's */ 12 # if defined HAVE_MD5_H && defined HAVE_MD5INIT 13 # include <md5.h> 14 # else 15 # include "isc/md5.h" 16 typedef isc_md5_t MD5_CTX; 17 # define MD5_DIGEST_LENGTH ISC_MD5_DIGESTLENGTH 18 # define MD5Init(c) isc_md5_init(c) 19 # define MD5Update(c, p, s) isc_md5_update(c, (const void *)p, s) 20 # define MD5Final(d, c) isc_md5_final((c), (d)) /* swapped */ 21 # endif 22 23 # define KEY_TYPE_MD5 NID_md5 24 25 #ifdef OPENSSL 26 # include <openssl/evp.h> 27 # include "libssl_compat.h" 28 # ifdef HAVE_OPENSSL_CMAC_H 29 # include <openssl/cmac.h> 30 # define CMAC "AES128CMAC" 31 # define AES_128_KEY_SIZE 16 32 # endif /*HAVE_OPENSSL_CMAC_H*/ 33 #else /* !OPENSSL follows */ 34 /* 35 * Provide OpenSSL-alike MD5 API if we're not using OpenSSL 36 */ 37 38 typedef MD5_CTX EVP_MD_CTX; 39 40 # define NID_md5 4 /* from openssl/objects.h */ 41 # define EVP_MAX_MD_SIZE MD5_DIGEST_LENGTH 42 # define EVP_MD_CTX_free(c) free(c) 43 # define EVP_MD_CTX_new() calloc(1, sizeof(MD5_CTX)) 44 # define EVP_get_digestbynid(t) NULL 45 # define EVP_md5() NULL 46 # define EVP_MD_CTX_init(c) 47 # define EVP_MD_CTX_set_flags(c, f) 48 # define EVP_DigestInit(c, dt) (MD5Init(c), (dt ? 1 : 1)) 49 # define EVP_DigestInit_ex(c, dt, i) (MD5Init(c), (dt ? 1 : 1)) 50 # define EVP_DigestUpdate(c, p, s) MD5Update(c, (const void *)(p), \ 51 s) 52 # define EVP_DigestFinal(c, d, pdl) \ 53 do { \ 54 MD5Final((d), (c)); \ 55 *(pdl) = MD5_LENGTH; \ 56 } while (0) 57 # endif /* !OPENSSL */ 58 #endif /* NTP_MD5_H */ 59