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suricata/src/detect-krb5-sname.c

73 lines
2.3 KiB
C

/* 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-sname.h"
#include "rust.h"
#include "util-profiling.h"
static int g_krb5_sname_buffer_id = 0;
static int DetectKrb5SNameSetup(DetectEngineCtx *de_ctx, Signature *s, const char *arg)
{
if (SCDetectBufferSetActiveList(de_ctx, s, g_krb5_sname_buffer_id) < 0)
return -1;
if (SCDetectSignatureSetAppProto(s, ALPROTO_KRB5) != 0)
return -1;
return 0;
}
void DetectKrb5SNameRegister(void)
{
sigmatch_table[DETECT_KRB5_SNAME].name = "krb5.sname";
sigmatch_table[DETECT_KRB5_SNAME].alias = "krb5_sname";
sigmatch_table[DETECT_KRB5_SNAME].url = "/rules/kerberos-keywords.html#krb5-sname";
sigmatch_table[DETECT_KRB5_SNAME].Setup = DetectKrb5SNameSetup;
sigmatch_table[DETECT_KRB5_SNAME].flags =
SIGMATCH_NOOPT | SIGMATCH_INFO_STICKY_BUFFER | SIGMATCH_INFO_MULTI_BUFFER;
sigmatch_table[DETECT_KRB5_SNAME].desc = "sticky buffer to match on Kerberos 5 server name";
DetectAppLayerMultiRegister(
"krb5_sname", ALPROTO_KRB5, SIG_FLAG_TOCLIENT, 1, SCKrb5TxGetSname, 2);
DetectBufferTypeSetDescriptionByName("krb5_sname",
"Kerberos 5 ticket server name");
g_krb5_sname_buffer_id = DetectBufferTypeGetByName("krb5_sname");
DetectBufferTypeSupportsMultiInstance("krb5_sname");
}