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/* Copyright (C) 2015 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.
*/
/**
* \ingroup decode
*
* @{
*/
/**
* \file
*
* \author Victor Julien <victor@inliniac.net>
*
* Decode linkype null:
* http://www.tcpdump.org/linktypes.html
*/
#include "suricata-common.h"
#include "decode.h"
#include "decode-raw.h"
#include "decode-events.h"
#include "util-unittest.h"
#include "util-debug.h"
#include "pkt-var.h"
#include "util-profiling.h"
#include "host.h"
#define HDR_SIZE 4
int DecodeNull(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p, uint8_t *pkt, uint16_t len, PacketQueue *pq)
{
StatsIncr(tv, dtv->counter_null);
if (unlikely(len < HDR_SIZE)) {
ENGINE_SET_INVALID_EVENT(p, LTNULL_PKT_TOO_SMALL);
return TM_ECODE_FAILED;
}
uint32_t type = *((uint32_t *)pkt);
switch(type) {
case AF_INET:
SCLogDebug("IPV4 Packet");
DecodeIPV4(tv, dtv, p, GET_PKT_DATA(p)+HDR_SIZE, GET_PKT_LEN(p)-HDR_SIZE, pq);
break;
case AF_INET6:
SCLogDebug("IPV6 Packet");
DecodeIPV6(tv, dtv, p, GET_PKT_DATA(p)+HDR_SIZE, GET_PKT_LEN(p)-HDR_SIZE, pq);
break;
default:
SCLogDebug("Unknown Null packet type version %" PRIu32 "", type);
ENGINE_SET_EVENT(p, LTNULL_UNSUPPORTED_TYPE);
break;
}
return TM_ECODE_OK;
}
#ifdef UNITTESTS
#endif /* UNITTESTS */
/**
* \brief Registers Null unit tests
*/
void DecodeNullRegisterTests(void)
{
#ifdef UNITTESTS
#endif /* UNITTESTS */
}
/**
* @}
*/
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