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/* Copyright (C) 2007-2010 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>
*
* Decodes Sll
*/
#include "suricata-common.h"
#include "decode.h"
#include "decode-sll.h"
#include "decode-events.h"
#include "util-debug.h"
int DecodeSll(ThreadVars *tv, DecodeThreadVars *dtv, Packet *p, uint8_t *pkt, uint16_t len, PacketQueue *pq)
{
StatsIncr(tv, dtv->counter_sll);
if (unlikely(len < SLL_HEADER_LEN)) {
ENGINE_SET_INVALID_EVENT(p, SLL_PKT_TOO_SMALL);
return TM_ECODE_FAILED;
}
SllHdr *sllh = (SllHdr *)pkt;
if (unlikely(sllh == NULL))
return TM_ECODE_FAILED;
SCLogDebug("p %p pkt %p sll_protocol %04x", p, pkt, ntohs(sllh->sll_protocol));
switch (ntohs(sllh->sll_protocol)) {
case ETHERNET_TYPE_IP:
DecodeIPV4(tv, dtv, p, pkt + SLL_HEADER_LEN,
len - SLL_HEADER_LEN, pq);
break;
case ETHERNET_TYPE_IPV6:
DecodeIPV6(tv, dtv, p, pkt + SLL_HEADER_LEN,
len - SLL_HEADER_LEN, pq);
break;
case ETHERNET_TYPE_VLAN:
DecodeVLAN(tv, dtv, p, pkt + SLL_HEADER_LEN,
len - SLL_HEADER_LEN, pq);
break;
default:
SCLogDebug("p %p pkt %p sll type %04x not supported", p,
pkt, ntohs(sllh->sll_protocol));
}
return TM_ECODE_OK;
}
/**
* @}
*/
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