00b67f09dd
Also known as ISC bind. This import adds utilities such as host(1), dig(1), and nslookup(1), as well as many other tools and libraries. Change-Id: I035ca46e64f1965d57019e773f4ff0ef035e4aa3
163 lines
3.7 KiB
C
163 lines
3.7 KiB
C
/* $NetBSD: tsec.c,v 1.4 2014/12/10 04:37:58 christos Exp $ */
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/*
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* Copyright (C) 2009, 2010 Internet Systems Consortium, Inc. ("ISC")
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
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* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
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* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
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* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/* Id: tsec.c,v 1.7 2010/12/09 00:54:34 marka Exp */
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#include <config.h>
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#include <isc/mem.h>
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#include <dns/tsec.h>
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#include <dns/tsig.h>
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#include <dns/result.h>
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#include <dst/dst.h>
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#define DNS_TSEC_MAGIC ISC_MAGIC('T', 's', 'e', 'c')
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#define DNS_TSEC_VALID(t) ISC_MAGIC_VALID(t, DNS_TSEC_MAGIC)
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/*%
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* DNS Transaction Security object. We assume this is not shared by
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* multiple threads, and so the structure does not contain a lock.
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*/
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struct dns_tsec {
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unsigned int magic;
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dns_tsectype_t type;
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isc_mem_t *mctx;
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union {
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dns_tsigkey_t *tsigkey;
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dst_key_t *key;
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} ukey;
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};
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isc_result_t
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dns_tsec_create(isc_mem_t *mctx, dns_tsectype_t type, dst_key_t *key,
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dns_tsec_t **tsecp)
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{
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isc_result_t result;
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dns_tsec_t *tsec;
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dns_tsigkey_t *tsigkey = NULL;
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dns_name_t *algname;
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REQUIRE(mctx != NULL);
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REQUIRE(tsecp != NULL && *tsecp == NULL);
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tsec = isc_mem_get(mctx, sizeof(*tsec));
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if (tsec == NULL)
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return (ISC_R_NOMEMORY);
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tsec->type = type;
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tsec->mctx = mctx;
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switch (type) {
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case dns_tsectype_tsig:
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switch (dst_key_alg(key)) {
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case DST_ALG_HMACMD5:
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algname = dns_tsig_hmacmd5_name;
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break;
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case DST_ALG_HMACSHA1:
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algname = dns_tsig_hmacsha1_name;
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break;
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case DST_ALG_HMACSHA224:
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algname = dns_tsig_hmacsha224_name;
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break;
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case DST_ALG_HMACSHA256:
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algname = dns_tsig_hmacsha256_name;
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break;
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case DST_ALG_HMACSHA384:
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algname = dns_tsig_hmacsha384_name;
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break;
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case DST_ALG_HMACSHA512:
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algname = dns_tsig_hmacsha512_name;
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break;
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default:
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isc_mem_put(mctx, tsec, sizeof(*tsec));
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return (DNS_R_BADALG);
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}
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result = dns_tsigkey_createfromkey(dst_key_name(key),
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algname, key, ISC_FALSE,
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NULL, 0, 0, mctx, NULL,
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&tsigkey);
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if (result != ISC_R_SUCCESS) {
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isc_mem_put(mctx, tsec, sizeof(*tsec));
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return (result);
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}
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tsec->ukey.tsigkey = tsigkey;
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break;
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case dns_tsectype_sig0:
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tsec->ukey.key = key;
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break;
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default:
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INSIST(0);
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}
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tsec->magic = DNS_TSEC_MAGIC;
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*tsecp = tsec;
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return (ISC_R_SUCCESS);
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}
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void
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dns_tsec_destroy(dns_tsec_t **tsecp) {
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dns_tsec_t *tsec;
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REQUIRE(tsecp != NULL && *tsecp != NULL);
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tsec = *tsecp;
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REQUIRE(DNS_TSEC_VALID(tsec));
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switch (tsec->type) {
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case dns_tsectype_tsig:
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dns_tsigkey_detach(&tsec->ukey.tsigkey);
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break;
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case dns_tsectype_sig0:
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dst_key_free(&tsec->ukey.key);
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break;
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default:
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INSIST(0);
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}
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tsec->magic = 0;
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isc_mem_put(tsec->mctx, tsec, sizeof(*tsec));
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*tsecp = NULL;
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}
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dns_tsectype_t
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dns_tsec_gettype(dns_tsec_t *tsec) {
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REQUIRE(DNS_TSEC_VALID(tsec));
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return (tsec->type);
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}
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void
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dns_tsec_getkey(dns_tsec_t *tsec, void *keyp) {
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REQUIRE(DNS_TSEC_VALID(tsec));
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REQUIRE(keyp != NULL);
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switch (tsec->type) {
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case dns_tsectype_tsig:
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dns_tsigkey_attach(tsec->ukey.tsigkey, (dns_tsigkey_t **)keyp);
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break;
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case dns_tsectype_sig0:
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*(dst_key_t **)keyp = tsec->ukey.key;
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break;
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default:
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INSIST(0);
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}
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}
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