1/* 2 * Copyright (C) 2004-2007, 2010 Internet Systems Consortium, Inc. ("ISC") 3 * Copyright (C) 2002 Internet Software Consortium. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for any 6 * purpose with or without fee is hereby granted, provided that the above 7 * copyright notice and this permission notice appear in all copies. 8 * 9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH 10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 11 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT, 12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE 14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 15 * PERFORMANCE OF THIS SOFTWARE. 16 */ 17 18/* $Id: ds.h,v 1.12 2010/12/23 23:47:08 tbox Exp $ */ 19 20#ifndef DNS_DS_H 21#define DNS_DS_H 1 22 23#include <isc/lang.h> 24 25#include <dns/types.h> 26 27#define DNS_DSDIGEST_SHA1 (1) 28#define DNS_DSDIGEST_SHA256 (2) 29#define DNS_DSDIGEST_GOST (3) 30 31/* should not be here... */ 32 33#define ISC_GOST_DIGESTLENGTH 32U 34 35/* 36 * Assuming SHA-256 digest type. 37 */ 38#define DNS_DS_BUFFERSIZE (36) 39 40ISC_LANG_BEGINDECLS 41 42isc_result_t 43dns_ds_buildrdata(dns_name_t *owner, dns_rdata_t *key, 44 unsigned int digest_type, unsigned char *buffer, 45 dns_rdata_t *rdata); 46/*%< 47 * Build the rdata of a DS record. 48 * 49 * Requires: 50 *\li key Points to a valid DNS KEY record. 51 *\li buffer Points to a temporary buffer of at least 52 * #DNS_DS_BUFFERSIZE bytes. 53 *\li rdata Points to an initialized dns_rdata_t. 54 * 55 * Ensures: 56 * \li *rdata Contains a valid DS rdata. The 'data' member refers 57 * to 'buffer'. 58 */ 59 60isc_boolean_t 61dns_ds_digest_supported(unsigned int digest_type); 62/*%< 63 * Is this digest algorithm supported by dns_ds_buildrdata()? 64 */ 65 66ISC_LANG_ENDDECLS 67 68#endif /* DNS_DS_H */ 69