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/* Copyright (C) 2007-2012 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 __FLOW_PRIVATE_H__
#define __FLOW_PRIVATE_H__
#include "flow-hash.h"
#include "flow-queue.h"
#include "util-atomic.h"
/* global flow flags */
/** Flow engine is in emergency mode. This means it doesn't have enough spare
* flows for new flows and/or it's memcap limit it reached. In this state the
* flow engine with evaluate flows with lower timeout settings. */
#define FLOW_EMERGENCY 0x01
/* Flow Time out values */
#define FLOW_DEFAULT_NEW_TIMEOUT 30
#define FLOW_DEFAULT_EST_TIMEOUT 300
#define FLOW_DEFAULT_CLOSED_TIMEOUT 0
#define FLOW_IPPROTO_TCP_NEW_TIMEOUT 30
#define FLOW_IPPROTO_TCP_EST_TIMEOUT 300
#define FLOW_IPPROTO_UDP_NEW_TIMEOUT 30
#define FLOW_IPPROTO_UDP_EST_TIMEOUT 300
#define FLOW_IPPROTO_ICMP_NEW_TIMEOUT 30
#define FLOW_IPPROTO_ICMP_EST_TIMEOUT 300
#define FLOW_DEFAULT_EMERG_NEW_TIMEOUT 10
#define FLOW_DEFAULT_EMERG_EST_TIMEOUT 100
#define FLOW_DEFAULT_EMERG_CLOSED_TIMEOUT 0
#define FLOW_IPPROTO_TCP_EMERG_NEW_TIMEOUT 10
#define FLOW_IPPROTO_TCP_EMERG_EST_TIMEOUT 100
#define FLOW_IPPROTO_UDP_EMERG_NEW_TIMEOUT 10
#define FLOW_IPPROTO_UDP_EMERG_EST_TIMEOUT 100
#define FLOW_IPPROTO_ICMP_EMERG_NEW_TIMEOUT 10
#define FLOW_IPPROTO_ICMP_EMERG_EST_TIMEOUT 100
enum {
FLOW_PROTO_TCP = 0,
FLOW_PROTO_UDP,
FLOW_PROTO_ICMP,
FLOW_PROTO_SCTP,
FLOW_PROTO_DEFAULT,
/* should be last */
FLOW_PROTO_MAX,
};
/*
* Variables
*/
/** FlowProto specific timeouts and free/state functions */
FlowProto flow_proto[FLOW_PROTO_MAX];
/** spare/unused/prealloced flows live here */
FlowQueue flow_spare_q;
/** queue to pass flows to cleanup/log thread(s) */
FlowQueue flow_recycle_q;
FlowBucket *flow_hash;
FlowConfig flow_config;
/** flow memuse counter (atomic), for enforcing memcap limit */
SC_ATOMIC_DECLARE(long long unsigned int, flow_memuse);
//#define FLOWBITS_STATS
#ifdef FLOWBITS_STATS
uint64_t flowbits_memuse;
uint64_t flowbits_memuse_max;
uint32_t flowbits_added;
uint32_t flowbits_removed;
SCMutex flowbits_mutex;
#endif /* FLOWBITS_STATS */
#endif /* __FLOW_PRIVATE_H__ */
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