xref: /minix/external/bsd/bind/dist/lib/dns/include/dns/ds.h (revision fb9c64b2)
1 /*	$NetBSD: ds.h,v 1.6 2014/12/10 04:37:58 christos Exp $	*/
2 
3 /*
4  * Copyright (C) 2004-2007, 2010, 2012, 2014  Internet Systems Consortium, Inc. ("ISC")
5  * Copyright (C) 2002  Internet Software Consortium.
6  *
7  * Permission to use, copy, modify, and/or distribute this software for any
8  * purpose with or without fee is hereby granted, provided that the above
9  * copyright notice and this permission notice appear in all copies.
10  *
11  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
12  * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
13  * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
14  * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
15  * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
16  * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17  * PERFORMANCE OF THIS SOFTWARE.
18  */
19 
20 /* Id: ds.h,v 1.12 2010/12/23 23:47:08 tbox Exp  */
21 
22 #ifndef DNS_DS_H
23 #define DNS_DS_H 1
24 
25 #include <isc/lang.h>
26 
27 #include <dns/types.h>
28 
29 #define DNS_DSDIGEST_SHA1 (1)
30 #define DNS_DSDIGEST_SHA256 (2)
31 #define DNS_DSDIGEST_GOST (3)
32 #define DNS_DSDIGEST_SHA384 (4)
33 
34 /*
35  * Assuming SHA-384 digest type.
36  */
37 #define DNS_DS_BUFFERSIZE (52)
38 
39 ISC_LANG_BEGINDECLS
40 
41 isc_result_t
42 dns_ds_buildrdata(dns_name_t *owner, dns_rdata_t *key,
43 		  unsigned int digest_type, unsigned char *buffer,
44 		  dns_rdata_t *rdata);
45 /*%<
46  * Build the rdata of a DS record.
47  *
48  * Requires:
49  *\li	key	Points to a valid DNS KEY record.
50  *\li	buffer	Points to a temporary buffer of at least
51  * 		#DNS_DS_BUFFERSIZE bytes.
52  *\li	rdata	Points to an initialized dns_rdata_t.
53  *
54  * Ensures:
55  *  \li    *rdata	Contains a valid DS rdata.  The 'data' member refers
56  *		to 'buffer'.
57  */
58 
59 ISC_LANG_ENDDECLS
60 
61 #endif /* DNS_DS_H */
62