1 /* 2 * Copyright (C) 2004-2007, 2010, 2012 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 #define DNS_DSDIGEST_SHA384 (4) 31 32 /* should not be here... */ 33 34 #define ISC_GOST_DIGESTLENGTH 32U 35 36 /* 37 * Assuming SHA-384 digest type. 38 */ 39 #define DNS_DS_BUFFERSIZE (52) 40 41 ISC_LANG_BEGINDECLS 42 43 isc_result_t 44 dns_ds_buildrdata(dns_name_t *owner, dns_rdata_t *key, 45 unsigned int digest_type, unsigned char *buffer, 46 dns_rdata_t *rdata); 47 /*%< 48 * Build the rdata of a DS record. 49 * 50 * Requires: 51 *\li key Points to a valid DNS KEY record. 52 *\li buffer Points to a temporary buffer of at least 53 * #DNS_DS_BUFFERSIZE bytes. 54 *\li rdata Points to an initialized dns_rdata_t. 55 * 56 * Ensures: 57 * \li *rdata Contains a valid DS rdata. The 'data' member refers 58 * to 'buffer'. 59 */ 60 61 isc_boolean_t 62 dns_ds_digest_supported(unsigned int digest_type); 63 /*%< 64 * Is this digest algorithm supported by dns_ds_buildrdata()? 65 */ 66 67 ISC_LANG_ENDDECLS 68 69 #endif /* DNS_DS_H */ 70