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/* Certificate support for IKE authentication
* Copyright (C) 2002-2004 Andreas Steffen, Zuercher Hochschule Winterthur
* Copyright (C) 2003-2006 Michael Richardson <mcr@xelerance.com>
* Copyright (C) 2009 Paul Wouters <paul@xelerance.com>
* Copyright (C) 2009 Avesh Agarwal <avagarwa@redhat.com>
* Copyright (C) 2012-2013 Paul Wouters <paul@libreswan.org>
* Copyright (C) 2017 Paul Wouters <pwouters@redhat.com>
* Copyright (C) 2013 Tuomo Soini <tis@foobar.fi>
* Copyright (C) 2013 Matt Rogers <mrogers@redhat.com>
* Copyright (C) 2019 Andrew Cagney <cagney@gnu.org>
* Copyright (C) 2019 D. Hugh Redelmeier <hugh@mimosa.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <https://www.gnu.org/licenses/gpl2.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#include "certs.h"
#include "lswalloc.h"
#include "passert.h"
#include "lswnss.h" /* for same_secitem_as_shunk() */
void release_certs(struct certs **head)
{
while (*head != NULL) {
struct certs *old = *head;
*head = old->next;
CERT_DestroyCertificate(old->cert);
pfree(old);
}
}
void add_cert(struct certs **head, CERTCertificate *cert)
{
passert(cert != NULL);
struct certs *new = alloc_thing(struct certs, __func__);
new->cert = cert;
new->next = *head;
*head = new;
}
CERTCertificate *make_end_cert_first(struct certs **head)
{
for (struct certs *entry = *head; entry != NULL;
entry = entry->next) {
if (!CERT_IsCACert(entry->cert, NULL)) {
/*
* Swap .cert values of entry and *head.
* This will work even if entry == *head.
*/
CERTCertificate *end_cert = entry->cert;
entry->cert = (*head)->cert;
(*head)->cert = end_cert;
return end_cert;
}
}
return NULL;
}
enum ike_cert_type cert_ike_type(const struct cert *cert UNUSED)
{
if (cert == NULL || cert->nss_cert == NULL) {
return CERT_NONE;
} else {
return CERT_X509_SIGNATURE;
}
}
shunk_t cert_der(const struct cert *cert)
{
if (cert == NULL || cert->nss_cert == NULL) {
return null_shunk;
} else {
return same_secitem_as_shunk(cert->nss_cert->derCert);
}
}
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