/* Copyright (C) 2018-2022 Open Information Security Foundation

 *

 * You can copy, redistribute or modify this Program under the terms of

 * the GNU General Public License version 2 as published by the Free

 * Software Foundation.

 *

 * 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.

 *

 * You should have received a copy of the GNU General Public License

 * version 2 along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA

 * 02110-1301, USA.

 */

/**

 * \file

 *

 * \author Pierre Chifflier <chifflier@wzdftpd.net>

 */

#include "suricata-common.h"

#include "util-unittest.h"

#include "detect-parse.h"

#include "detect-engine.h"

#include "detect-engine-buffer.h"

#include "detect-engine-mpm.h"

#include "detect-engine-state.h"

#include "detect-engine-prefilter.h"

#include "detect-engine-content-inspection.h"

#include "detect-krb5-cname.h"

#include "rust.h"

#include "util-profiling.h"

static int g_krb5_cname_buffer_id = 0;

static int DetectKrb5CNameSetup(DetectEngineCtx *de_ctx, Signature *s, const char *arg)

{

    if (SCDetectBufferSetActiveList(de_ctx, s, g_krb5_cname_buffer_id) < 0)

        return -1;

    if (SCDetectSignatureSetAppProto(s, ALPROTO_KRB5) != 0)

        return -1;

    return 0;

}

void DetectKrb5CNameRegister(void)

{

    sigmatch_table[DETECT_KRB5_CNAME].name = "krb5.cname";

    sigmatch_table[DETECT_KRB5_CNAME].alias = "krb5_cname";

    sigmatch_table[DETECT_KRB5_CNAME].url = "/rules/kerberos-keywords.html#krb5-cname";

    sigmatch_table[DETECT_KRB5_CNAME].Setup = DetectKrb5CNameSetup;

    sigmatch_table[DETECT_KRB5_CNAME].flags |= SIGMATCH_NOOPT | SIGMATCH_INFO_STICKY_BUFFER;

    sigmatch_table[DETECT_KRB5_CNAME].desc = "sticky buffer to match on Kerberos 5 client name";

    DetectAppLayerMultiRegister(

            "krb5_cname", ALPROTO_KRB5, SIG_FLAG_TOCLIENT, 1, SCKrb5TxGetCname, 2);

    DetectBufferTypeSetDescriptionByName("krb5_cname",

            "Kerberos 5 ticket client name");

    g_krb5_cname_buffer_id = DetectBufferTypeGetByName("krb5_cname");

    DetectBufferTypeSupportsMultiInstance("krb5_cname");

}