suricata checkin based on commit id a4bce14770beee46a537eda3c3f6e8e8565d5d0a

Change-Id: I9a214fa0ee95e58fc640e50bd604dac7f42db48f

1 files changed, 63 insertions, 0 deletions

diff --git a/framework/src/suricata/src/stream-tcp-sack.h b/framework/src/suricata/src/stream-tcp-sack.h
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+++ b/framework/src/suricata/src/stream-tcp-sack.h
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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__*/