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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.
+ */
+
+/**
+ * \file
+ *
+ * \author Victor Julien <victor@inliniac.net>
+ */
+
+#ifndef __SOURCE_NFQ_H__
+#define __SOURCE_NFQ_H__
+
+#ifdef NFQ
+
+#include "threads.h"
+#include <linux/netfilter.h> /* for NF_ACCEPT */
+#include <libnetfilter_queue/libnetfilter_queue.h>
+
+// Netfilter's limit
+#define NFQ_MAX_QUEUE 65535
+
+/* idea: set the recv-thread id in the packet to
+ * select an verdict-queue */
+
+typedef struct NFQPacketVars_
+{
+ int id; /* this nfq packets id */
+ uint16_t nfq_index; /* index in NFQ array */
+ uint8_t verdicted;
+
+ uint32_t mark;
+ uint32_t ifi;
+ uint32_t ifo;
+ uint16_t hw_protocol;
+} NFQPacketVars;
+
+typedef struct NFQQueueVars_
+{
+ struct nfq_handle *h;
+ struct nfnl_handle *nh;
+ int fd;
+ uint8_t use_mutex;
+ /* 2 threads deal with the queue handle, so add a mutex */
+ struct nfq_q_handle *qh;
+ SCMutex mutex_qh;
+ /* this one should be not changing after init */
+ uint16_t queue_num;
+ /* position into the NFQ queue var array */
+ uint16_t nfq_index;
+
+#ifdef DBG_PERF
+ int dbg_maxreadsize;
+#endif /* DBG_PERF */
+
+ /* counters */
+ uint32_t pkts;
+ uint64_t bytes;
+ uint32_t errs;
+ uint32_t accepted;
+ uint32_t dropped;
+ uint32_t replaced;
+ struct {
+ uint32_t packet_id; /* id of last processed packet */
+ uint32_t verdict;
+ uint32_t mark;
+ uint8_t mark_valid:1;
+ uint8_t len;
+ uint8_t maxlen;
+ } verdict_cache;
+
+} NFQQueueVars;
+
+typedef struct NFQGlobalVars_
+{
+ char unbind;
+} NFQGlobalVars;
+
+void NFQInitConfig(bool quiet);
+int NFQRegisterQueue(const uint16_t number);
+int NFQParseAndRegisterQueues(const char *queues);
+void *NFQGetQueue(int number);
+void *NFQGetThread(int number);
+void NFQContextsClean(void);
+#endif /* NFQ */
+#endif /* __SOURCE_NFQ_H__ */
+