148 lines
3.4 KiB
C
148 lines
3.4 KiB
C
/*
|
|
* Copyright (C) 2004-2007 Internet Systems Consortium, Inc. ("ISC")
|
|
* Copyright (C) 2001 Internet Software Consortium.
|
|
*
|
|
* Permission to use, copy, modify, and/or distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
|
|
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
|
|
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
|
|
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
|
|
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
|
|
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
|
* PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
/* $Id: key.c,v 1.8 2007-06-19 23:47:16 tbox Exp $ */
|
|
|
|
#include <config.h>
|
|
|
|
#include <stddef.h>
|
|
#include <stdlib.h>
|
|
|
|
#include <isc/region.h>
|
|
#include <isc/util.h>
|
|
|
|
#include <dns/keyvalues.h>
|
|
|
|
#include <dst/dst.h>
|
|
|
|
#include "dst_internal.h"
|
|
|
|
isc_uint16_t
|
|
dst_region_computeid(const isc_region_t *source, unsigned int alg) {
|
|
isc_uint32_t ac;
|
|
const unsigned char *p;
|
|
int size;
|
|
|
|
REQUIRE(source != NULL);
|
|
REQUIRE(source->length >= 4);
|
|
|
|
p = source->base;
|
|
size = source->length;
|
|
|
|
if (alg == DST_ALG_RSAMD5)
|
|
return ((p[size - 3] << 8) + p[size - 2]);
|
|
|
|
for (ac = 0; size > 1; size -= 2, p += 2)
|
|
ac += ((*p) << 8) + *(p + 1);
|
|
|
|
if (size > 0)
|
|
ac += ((*p) << 8);
|
|
ac += (ac >> 16) & 0xffff;
|
|
|
|
return ((isc_uint16_t)(ac & 0xffff));
|
|
}
|
|
|
|
dns_name_t *
|
|
dst_key_name(const dst_key_t *key) {
|
|
REQUIRE(VALID_KEY(key));
|
|
return (key->key_name);
|
|
}
|
|
|
|
unsigned int
|
|
dst_key_size(const dst_key_t *key) {
|
|
REQUIRE(VALID_KEY(key));
|
|
return (key->key_size);
|
|
}
|
|
|
|
unsigned int
|
|
dst_key_proto(const dst_key_t *key) {
|
|
REQUIRE(VALID_KEY(key));
|
|
return (key->key_proto);
|
|
}
|
|
|
|
unsigned int
|
|
dst_key_alg(const dst_key_t *key) {
|
|
REQUIRE(VALID_KEY(key));
|
|
return (key->key_alg);
|
|
}
|
|
|
|
isc_uint32_t
|
|
dst_key_flags(const dst_key_t *key) {
|
|
REQUIRE(VALID_KEY(key));
|
|
return (key->key_flags);
|
|
}
|
|
|
|
dns_keytag_t
|
|
dst_key_id(const dst_key_t *key) {
|
|
REQUIRE(VALID_KEY(key));
|
|
return (key->key_id);
|
|
}
|
|
|
|
dns_rdataclass_t
|
|
dst_key_class(const dst_key_t *key) {
|
|
REQUIRE(VALID_KEY(key));
|
|
return (key->key_class);
|
|
}
|
|
|
|
isc_boolean_t
|
|
dst_key_iszonekey(const dst_key_t *key) {
|
|
REQUIRE(VALID_KEY(key));
|
|
|
|
if ((key->key_flags & DNS_KEYTYPE_NOAUTH) != 0)
|
|
return (ISC_FALSE);
|
|
if ((key->key_flags & DNS_KEYFLAG_OWNERMASK) != DNS_KEYOWNER_ZONE)
|
|
return (ISC_FALSE);
|
|
if (key->key_proto != DNS_KEYPROTO_DNSSEC &&
|
|
key->key_proto != DNS_KEYPROTO_ANY)
|
|
return (ISC_FALSE);
|
|
return (ISC_TRUE);
|
|
}
|
|
|
|
isc_boolean_t
|
|
dst_key_isnullkey(const dst_key_t *key) {
|
|
REQUIRE(VALID_KEY(key));
|
|
|
|
if ((key->key_flags & DNS_KEYFLAG_TYPEMASK) != DNS_KEYTYPE_NOKEY)
|
|
return (ISC_FALSE);
|
|
if ((key->key_flags & DNS_KEYFLAG_OWNERMASK) != DNS_KEYOWNER_ZONE)
|
|
return (ISC_FALSE);
|
|
if (key->key_proto != DNS_KEYPROTO_DNSSEC &&
|
|
key->key_proto != DNS_KEYPROTO_ANY)
|
|
return (ISC_FALSE);
|
|
return (ISC_TRUE);
|
|
}
|
|
|
|
void
|
|
dst_key_setbits(dst_key_t *key, isc_uint16_t bits) {
|
|
unsigned int maxbits;
|
|
REQUIRE(VALID_KEY(key));
|
|
if (bits != 0) {
|
|
RUNTIME_CHECK(dst_key_sigsize(key, &maxbits) == ISC_R_SUCCESS);
|
|
maxbits *= 8;
|
|
REQUIRE(bits <= maxbits);
|
|
}
|
|
key->key_bits = bits;
|
|
}
|
|
|
|
isc_uint16_t
|
|
dst_key_getbits(const dst_key_t *key) {
|
|
REQUIRE(VALID_KEY(key));
|
|
return (key->key_bits);
|
|
}
|
|
|
|
/*! \file */
|