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/* $NetBSD: dnssec.c,v 1.5 2009/03/12 10:57:26 tteras Exp $ */
/* $KAME: dnssec.c,v 1.2 2001/08/05 18:46:07 itojun Exp $ */
/*
* Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the project nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "config.h"
#include <sys/types.h>
#include <sys/param.h>
#include <stdlib.h>
#include <string.h>
#include "var.h"
#include "vmbuf.h"
#include "misc.h"
#include "plog.h"
#include "debug.h"
#include "isakmp_var.h"
#include "isakmp.h"
#include "ipsec_doi.h"
#include "oakley.h"
#include "netdb_dnssec.h"
#include "strnames.h"
#include "dnssec.h"
#include "gcmalloc.h"
extern int h_errno;
vchar_t *
dnssec_getcert(id)
vchar_t *id;
{
vchar_t *cert = NULL;
struct certinfo *res = NULL;
struct ipsecdoi_id_b *id_b;
int type;
char *name = NULL;
int namelen;
int error;
id_b = (struct ipsecdoi_id_b *)id->v;
namelen = id->l - sizeof(*id_b);
name = racoon_malloc(namelen + 1);
if (!name) {
plog(LLV_ERROR, LOCATION, NULL,
"failed to get buffer.\n");
return NULL;
}
memcpy(name, id_b + 1, namelen);
name[namelen] = '\0';
switch (id_b->type) {
case IPSECDOI_ID_FQDN:
error = getcertsbyname(name, &res);
if (error != 0) {
plog(LLV_ERROR, LOCATION, NULL,
"getcertsbyname(\"%s\") failed.\n", name);
goto err;
}
break;
case IPSECDOI_ID_IPV4_ADDR:
case IPSECDOI_ID_IPV6_ADDR:
/* XXX should be processed to query PTR ? */
default:
plog(LLV_ERROR, LOCATION, NULL,
"inpropper ID type passed %s "
"though getcert method is dnssec.\n",
s_ipsecdoi_ident(id_b->type));
goto err;
}
/* check response */
if (res->ci_next != NULL) {
plog(LLV_WARNING, LOCATION, NULL,
"not supported multiple CERT RR.\n");
}
switch (res->ci_type) {
case DNSSEC_TYPE_PKIX:
/* XXX is it enough condition to set this type ? */
type = ISAKMP_CERT_X509SIGN;
break;
default:
plog(LLV_ERROR, LOCATION, NULL,
"not supported CERT RR type %d.\n", res->ci_type);
goto err;
}
/* create cert holder */
cert = vmalloc(res->ci_certlen + 1);
if (cert == NULL) {
plog(LLV_ERROR, LOCATION, NULL,
"failed to get cert buffer.\n");
goto err;
}
cert->v[0] = type;
memcpy(&cert->v[1], res->ci_cert, res->ci_certlen);
plog(LLV_DEBUG, LOCATION, NULL, "created CERT payload:\n");
plogdump(LLV_DEBUG, cert->v, cert->l);
err:
if (name)
racoon_free(name);
if (res)
freecertinfo(res);
return cert;
}
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