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64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
/* Copyright (C) 2007-2011 Open Information Security Foundation
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*
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* You can copy, redistribute or modify this Program under the terms of
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* the GNU General Public License version 2 as published by the Free
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* Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* version 2 along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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/**
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* \file
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*
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* \author Victor Julien <victor@inliniac.net>
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*/
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#ifndef __STREAM_TCP_SACK_H__
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#define __STREAM_TCP_SACK_H__
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#include "suricata-common.h"
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#include "util-optimize.h"
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/**
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* \brief Get the size of the SACKed ranges
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*
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* \param stream Stream to get the size for.
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*
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* \retval size the size
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*
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* Optimized for case where SACK is not in use in the
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* stream, as it *should* only be used in case of packet
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* loss.
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*/
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static inline uint32_t StreamTcpSackedSize(TcpStream *stream)
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{
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if (likely(stream->sack_head == NULL)) {
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SCReturnUInt(0U);
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} else {
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uint32_t size = 0;
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StreamTcpSackRecord *rec = NULL;
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for (rec = stream->sack_head; rec != NULL; rec = rec->next) {
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size += (rec->re - rec->le);
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}
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SCReturnUInt(size);
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}
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}
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int StreamTcpSackUpdatePacket(TcpStream *, Packet *);
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void StreamTcpSackPruneList(TcpStream *);
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void StreamTcpSackFreeList(TcpStream *);
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void StreamTcpSackRegisterTests (void);
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#endif /* __STREAM_TCP_SACK_H__*/
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