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/* Copyright (C) 2007-2011 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 Victor Julien <victor@inliniac.net>
*/
#ifndef __STREAM_TCP_SACK_H__
#define __STREAM_TCP_SACK_H__
#include "suricata-common.h"
#include "util-optimize.h"
/**
* \brief Get the size of the SACKed ranges
*
* \param stream Stream to get the size for.
*
* \retval size the size
*
* Optimized for case where SACK is not in use in the
* stream, as it *should* only be used in case of packet
* loss.
*/
static inline uint32_t StreamTcpSackedSize(TcpStream *stream)
{
if (likely(stream->sack_head == NULL)) {
SCReturnUInt(0U);
} else {
uint32_t size = 0;
StreamTcpSackRecord *rec = NULL;
for (rec = stream->sack_head; rec != NULL; rec = rec->next) {
size += (rec->re - rec->le);
}
SCReturnUInt(size);
}
}
int StreamTcpSackUpdatePacket(TcpStream *, Packet *);
void StreamTcpSackPruneList(TcpStream *);
void StreamTcpSackFreeList(TcpStream *);
void StreamTcpSackRegisterTests (void);
#endif /* __STREAM_TCP_SACK_H__*/
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