#include "suricata-common.h"
#include "conf.h"
#include "util-debug.h"
#include "host.h"
#include "host-storage.h"
#include "host-bit.h"
#include "util-random.h"
#include "util-misc.h"
#include "util-byte.h"
#include "host-queue.h"
#include "detect-tag.h"
#include "detect-engine-tag.h"
#include "detect-engine-threshold.h"
#include "util-hash-lookup3.h"

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Macros
#define	HOST_DEFAULT_HASHSIZE 4096

#define	HOST_DEFAULT_MEMCAP 16777216

#define	HOST_DEFAULT_PREALLOC 1000

#define	CMP_HOST(h, a) (CMP_ADDR(&(h)->a, (a)))

Functions
int	HostSetMemcap (uint64_t size)
	Update memcap value. More...

uint64_t	HostGetMemcap (void)
	Return memcap value. More...

uint64_t	HostGetMemuse (void)
	Return memuse value. More...

uint32_t	HostSpareQueueGetSize (void)

void	HostMoveToSpare (Host *h)

Host *	HostAlloc (void)

void	HostFree (Host *h)

void	HostClearMemory (Host *h)

void	HostInitConfig (char quiet)
	initialize the configuration More...

void	HostPrintStats (void)
	print some host stats More...

void	HostShutdown (void)
	shutdown the flow engine More...

void	HostCleanup (void)
	Cleanup the host engine. More...

void	HostRelease (Host *h)

void	HostLock (Host *h)

void	HostUnlock (Host *h)

Host *	HostGetHostFromHash (Address *a)

Host *	HostLookupHostFromHash (Address *a)
	look up a host in the hash More...

void	HostRegisterUnittests (void)

Detailed Description

Author: Victor Julien victo.nosp@m.r@in.nosp@m.linia.nosp@m.c.ne.nosp@m.t

Information about hosts.

Definition in file host.c.

Macro Definition Documentation

#define CMP_HOST	(	h,
		a
	)	(CMP_ADDR(&(h)->a, (a)))

Definition at line 408 of file host.c.

#define HOST_DEFAULT_HASHSIZE 4096

Definition at line 162 of file host.c.

Referenced by HostInitConfig().

#define HOST_DEFAULT_MEMCAP 16777216

Definition at line 163 of file host.c.

Referenced by HostInitConfig().

#define HOST_DEFAULT_PREALLOC 1000

Definition at line 164 of file host.c.

Referenced by HostInitConfig().

Function Documentation

Host* HostAlloc ( void )

Definition at line 103 of file host.c.

References HOST_CHECK_MEMCAP, Host_::m, SC_ATOMIC_ADD, SC_ATOMIC_INIT, SCMalloc, SCMutexInit, and unlikely.

Referenced by HostBitList(), HostFree(), and HostInitConfig().

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void HostCleanup ( void )

Cleanup the host engine.

Cleanup the host engine from tag and threshold.

Definition at line 344 of file host.c.

References Address_::family, HostConfig_::hash_rand, HostConfig_::hash_size, hashword(), Host_::hnext, host_config, host_hash, HostClearMemory(), HostFreeStorage(), HostMoveToSpare(), Host_::hprev, HRLOCK_LOCK, HRLOCK_UNLOCK, Host_::iprep, and SC_ATOMIC_GET.

Referenced by DetectHostbitFree(), DetectXbitFree(), HostBitList(), and PostRunDeinit().

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void HostClearMemory ( Host * h )

Definition at line 151 of file host.c.

References HostFreeStorage(), HostStorageSize(), Host_::iprep, and SCFree.

Referenced by HostCleanup(), HostFree(), HostGetActiveCount(), and HostLookupHostFromHash().

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void HostFree ( Host * h )

Definition at line 124 of file host.c.

References Host_::a, COPY_ADDRESS, HostAlloc(), HostClearMemory(), Host_::m, SC_ATOMIC_DESTROY, SC_ATOMIC_SUB, SCFree, and SCMutexDestroy.

Referenced by HostBitList(), and HostShutdown().

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Host* HostGetHostFromHash ( Address * a )

Definition at line 500 of file host.c.

References Host_::hnext, host_hash, HostIncrUsecnt, Host_::hprev, HRLOCK_LOCK, HRLOCK_UNLOCK, Host_::m, and SCMutexLock.

Referenced by DetectHostbitsRegister(), HostFreeStorage(), PacketAlertThreshold(), SRepLoadFileFromFD(), TagHashAddTag(), and UnixSocketPcapFile().

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uint64_t HostGetMemcap ( void )

Return memcap value.

Return values

memcap value

Definition at line 75 of file host.c.

References host_config, and SC_ATOMIC_GET.

Referenced by RunModeUnixSocketGetDefaultMode().

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uint64_t HostGetMemuse ( void )

Return memuse value.

Return values

memuse value

Definition at line 86 of file host.c.

References SC_ATOMIC_GET.

Referenced by RunModeUnixSocketGetDefaultMode().

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void HostInitConfig ( char quiet )

initialize the configuration

Warning: Not thread safe

set config values for memcap, prealloc and hash_size

Definition at line 168 of file host.c.

References ByteExtractStringUint32(), CLS, ConfGetValue(), FALSE, HostConfig_::hash_rand, HostConfig_::hash_size, HOST_CHECK_MEMCAP, host_config, HOST_DEFAULT_HASHSIZE, HOST_DEFAULT_MEMCAP, HOST_DEFAULT_PREALLOC, host_hash, HostAlloc(), HostEnqueue(), HostQueueInit(), HostStorageSize(), HRLOCK_INIT, HostQueue_::len, ParseSizeStringU64(), HostConfig_::prealloc, RandomGet(), SC_ATOMIC_ADD, SC_ATOMIC_GET, SC_ATOMIC_INIT, SC_ATOMIC_SET, SC_ERR_FATAL, SC_ERR_HOST_INIT, SC_ERR_SIZE_PARSE, SCLogDebug, SCLogError, SCMallocAligned, unlikely, and WarnInvalidConfEntry.

Referenced by DetectDetectionFilterRegister(), DetectHostbitFree(), DetectIPRepFree(), DetectThresholdRegister(), DetectXbitFree(), HostBitList(), HostFreeStorage(), PostRunDeinit(), SCThresholdConfParseFile(), and TagTimeoutCheck().

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void HostLock ( Host * h )

Definition at line 481 of file host.c.

References Host_::m, and SCMutexLock.

Referenced by DetectHostbitsRegister(), and DetectIPRepRegister().

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Host* HostLookupHostFromHash ( Address * a )

look up a host in the hash

Parameters

a	address to look up

Return values

h	LOCKED host or NULL

Definition at line 599 of file host.c.

References HostConfig_::hash_size, Host_::hnext, host_config, host_hash, HostClearMemory(), HostIncrUsecnt, Host_::hprev, HRLOCK_LOCK, HRLOCK_TRYLOCK, HRLOCK_UNLOCK, Host_::m, SC_ATOMIC_ADD, SC_ATOMIC_GET, SCMutexLock, SCMutexTrylock, and SCMutexUnlock.

Referenced by DetectHostbitsRegister(), DetectIPRepRegister(), DetectThresholdRegister(), TagHandlePacket(), TagTimeoutCheck(), and UnixSocketPcapFile().

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void HostMoveToSpare ( Host * h )

Definition at line 97 of file host.c.

References HostEnqueue(), and SC_ATOMIC_SUB.

Referenced by HostCleanup(), and HostGetActiveCount().

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void HostPrintStats ( void )

print some host stats

Warning: Not thread safe

Definition at line 287 of file host.c.

References host_config, SC_ATOMIC_GET, and SCLogPerf.

Referenced by HostShutdown(), and SRepInit().

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void HostRegisterUnittests ( void )

Definition at line 731 of file host.c.

References RegisterHostStorageTests().

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void HostRelease ( Host * h )

Definition at line 475 of file host.c.

References HostDecrUsecnt, Host_::m, and SCMutexUnlock.

Referenced by DetectIPRepRegister(), DetectThresholdRegister(), HostFreeStorage(), PacketAlertThreshold(), SRepLoadFileFromFD(), TagHandlePacket(), TagHashAddTag(), and TagTimeoutCheck().

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int HostSetMemcap ( uint64_t size )

Update memcap value.

Parameters

size	new memcap value

Definition at line 60 of file host.c.

References host_config, SC_ATOMIC_GET, and SC_ATOMIC_SET.

Referenced by RunModeUnixSocketGetDefaultMode().

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void HostShutdown ( void )

shutdown the flow engine

Warning: Not thread safe

Definition at line 300 of file host.c.

References BUG_ON, HostConfig_::hash_size, Host_::hnext, host_config, host_hash, HostDequeue(), HostFree(), HostPrintStats(), HostQueueDestroy(), HRLOCK_DESTROY, SC_ATOMIC_DESTROY, SC_ATOMIC_GET, SC_ATOMIC_SUB, and SCFreeAligned.

Referenced by DetectDetectionFilterRegister(), DetectIPRepFree(), DetectThresholdRegister(), GlobalsInitPreConfig(), HostFreeStorage(), SCThresholdConfParseFile(), and TagTimeoutCheck().

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uint32_t HostSpareQueueGetSize ( void )

Definition at line 92 of file host.c.

References HostQueueLen().

Referenced by HostGetSpareCount().

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void HostUnlock ( Host * h )

Definition at line 486 of file host.c.

References Host_::m, and SCMutexUnlock.

Referenced by DetectHostbitsRegister(), and UnixSocketPcapFile().

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Macros

Functions

Detailed Description

Macro Definition Documentation

Function Documentation