148 lines
4.0 KiB
C
148 lines
4.0 KiB
C
/* $KAME: dnssec.c,v 1.2 2001/08/05 18:46:07 itojun Exp $ */
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/*
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* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the project nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/types.h>
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#include <sys/param.h>
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#include <stdlib.h>
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#include <string.h>
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#include "var.h"
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#include "vmbuf.h"
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#include "misc.h"
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#include "plog.h"
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#include "debug.h"
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#include "isakmp_var.h"
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#include "isakmp.h"
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#include "ipsec_doi.h"
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#include "oakley.h"
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#include "netdb_dnssec.h"
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#include "strnames.h"
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#include "dnssec.h"
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#include "gcmalloc.h"
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extern int h_errno;
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cert_t *
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dnssec_getcert(id)
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vchar_t *id;
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{
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cert_t *cert = NULL;
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struct certinfo *res = NULL;
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struct ipsecdoi_id_b *id_b;
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int type;
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char *name = NULL;
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int namelen;
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int error;
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id_b = (struct ipsecdoi_id_b *)id->v;
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namelen = id->l - sizeof(*id_b);
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name = racoon_malloc(namelen + 1);
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if (!name) {
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plog(LLV_ERROR, LOCATION, NULL,
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"failed to get buffer.\n");
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return NULL;
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}
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memcpy(name, id_b + 1, namelen);
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name[namelen] = '\0';
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switch (id_b->type) {
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case IPSECDOI_ID_FQDN:
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error = getcertsbyname(name, &res);
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if (error != 0) {
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plog(LLV_ERROR, LOCATION, NULL,
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"getcertsbyname(\"%s\") failed.\n", name);
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goto err;
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}
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break;
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case IPSECDOI_ID_IPV4_ADDR:
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case IPSECDOI_ID_IPV6_ADDR:
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/* XXX should be processed to query PTR ? */
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default:
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plog(LLV_ERROR, LOCATION, NULL,
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"inpropper ID type passed %s "
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"though getcert method is dnssec.\n",
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s_ipsecdoi_ident(id_b->type));
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return NULL;
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}
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/* check response */
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if (res->ci_next == NULL) {
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plog(LLV_WARNING, LOCATION, NULL,
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"not supported multiple CERT RR.\n");
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}
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switch (res->ci_type) {
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case DNSSEC_TYPE_PKIX:
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/* XXX is it enough condition to set this type ? */
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type = ISAKMP_CERT_X509SIGN;
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break;
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default:
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plog(LLV_ERROR, LOCATION, NULL,
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"not supported CERT RR type %d.\n", res->ci_type);
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goto err;
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}
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/* create cert holder */
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cert = oakley_newcert();
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if (cert == NULL) {
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plog(LLV_ERROR, LOCATION, NULL,
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"failed to get cert buffer.\n");
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goto err;
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}
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cert->pl = vmalloc(res->ci_certlen + 1);
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if (cert->pl == NULL) {
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plog(LLV_ERROR, LOCATION, NULL,
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"failed to get cert buffer.\n");
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goto err;
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}
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memcpy(cert->pl->v + 1, res->ci_cert, res->ci_certlen);
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cert->pl->v[0] = type;
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cert->cert.v = cert->pl->v + 1;
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cert->cert.l = cert->pl->l - 1;
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plog(LLV_DEBUG, LOCATION, NULL, "created CERT payload:\n");
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plogdump(LLV_DEBUG, cert->pl->v, cert->pl->l);
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end:
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if (res)
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freecertinfo(res);
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return cert;
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err:
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if (name)
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racoon_free(name);
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if (cert)
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oakley_delcert(cert);
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goto end;
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}
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