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103 lines
2.5 KiB
C
103 lines
2.5 KiB
C
/* Copyright (C) 2007-2010 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 __SOURCE_NFQ_H__
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#define __SOURCE_NFQ_H__
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#ifdef NFQ
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#include "threads.h"
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#include <linux/netfilter.h> /* for NF_ACCEPT */
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#include <libnetfilter_queue/libnetfilter_queue.h>
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// Netfilter's limit
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#define NFQ_MAX_QUEUE 65535
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/* idea: set the recv-thread id in the packet to
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* select an verdict-queue */
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typedef struct NFQPacketVars_
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{
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int id; /* this nfq packets id */
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uint16_t nfq_index; /* index in NFQ array */
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uint8_t verdicted;
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uint32_t mark;
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uint32_t ifi;
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uint32_t ifo;
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uint16_t hw_protocol;
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} NFQPacketVars;
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typedef struct NFQQueueVars_
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{
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struct nfq_handle *h;
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struct nfnl_handle *nh;
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int fd;
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uint8_t use_mutex;
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/* 2 threads deal with the queue handle, so add a mutex */
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struct nfq_q_handle *qh;
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SCMutex mutex_qh;
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/* this one should be not changing after init */
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uint16_t queue_num;
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/* position into the NFQ queue var array */
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uint16_t nfq_index;
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#ifdef DBG_PERF
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int dbg_maxreadsize;
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#endif /* DBG_PERF */
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/* counters */
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uint32_t pkts;
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uint64_t bytes;
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uint32_t errs;
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uint32_t accepted;
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uint32_t dropped;
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uint32_t replaced;
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struct {
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uint32_t packet_id; /* id of last processed packet */
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uint32_t verdict;
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uint32_t mark;
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uint8_t mark_valid:1;
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uint8_t len;
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uint8_t maxlen;
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} verdict_cache;
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} NFQQueueVars;
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typedef struct NFQGlobalVars_
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{
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char unbind;
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} NFQGlobalVars;
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void NFQInitConfig(bool quiet);
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int NFQRegisterQueue(const uint16_t number);
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int NFQParseAndRegisterQueues(const char *queues);
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int NFQGetQueueCount(void);
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void *NFQGetQueue(int number);
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int NFQGetQueueNum(int number);
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void *NFQGetThread(int number);
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void NFQContextsClean(void);
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#endif /* NFQ */
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#endif /* __SOURCE_NFQ_H__ */
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