#include "decode.h"
#include "util-storage.h"

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Data Structures
struct	Host_

struct	HostHashRow_

struct	HostConfig_

Macros
#define	HRLOCK_MUTEX

#define	HRLOCK_TYPE SCMutex

#define	HRLOCK_INIT(fb) SCMutexInit(&(fb)->lock, NULL)

#define	HRLOCK_DESTROY(fb) SCMutexDestroy(&(fb)->lock)

#define	HRLOCK_LOCK(fb) SCMutexLock(&(fb)->lock)

#define	HRLOCK_TRYLOCK(fb) SCMutexTrylock(&(fb)->lock)

#define	HRLOCK_UNLOCK(fb) SCMutexUnlock(&(fb)->lock)

#define	HOST_VERBOSE 0

#define	HOST_QUIET 1

#define	HOST_CHECK_MEMCAP(size) ((((uint64_t)SC_ATOMIC_GET(host_memuse) + (uint64_t)(size)) <= SC_ATOMIC_GET(host_config.memcap)))
	check if a memory alloc would fit in the memcap More...

#define	HostIncrUsecnt(h) (void)SC_ATOMIC_ADD((h)->use_cnt, 1)

#define	HostDecrUsecnt(h) (void)SC_ATOMIC_SUB((h)->use_cnt, 1)

#define	HostReference(dst_h_ptr, h)

#define	HostDeReference(src_h_ptr)

Typedefs
typedef struct Host_	Host

typedef struct HostConfig_	HostConfig

Functions
struct HostHashRow_	__attribute__ ((aligned(CLS))) HostHashRow

	SC_ATOMIC_DECLARE (uint64_t, host_memuse)

	SC_ATOMIC_DECLARE (uint32_t, host_counter)

	SC_ATOMIC_DECLARE (uint32_t, host_prune_idx)

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

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

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

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

Host *	HostGetHostFromHash (Address *)

void	HostRelease (Host *)

void	HostLock (Host *)

void	HostClearMemory (Host *)

void	HostMoveToSpare (Host *)

uint32_t	HostSpareQueueGetSize (void)

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

void	HostRegisterUnittests (void)

Host *	HostAlloc (void)

void	HostFree (Host *)

void	HostUnlock (Host *h)

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

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

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

Variables
HRLOCK_TYPE	lock

Host *	head

Host *	tail

HostHashRow *	host_hash

HostConfig	host_config

Detailed Description

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

Definition in file host.h.

Macro Definition Documentation

#define HOST_CHECK_MEMCAP ( size ) ((((uint64_t)SC_ATOMIC_GET(host_memuse) + (uint64_t)(size)) <= SC_ATOMIC_GET(host_config.memcap)))

check if a memory alloc would fit in the memcap

Parameters

size	memory allocation size to check

Return values

1	it fits
0	no fit

Definition at line 109 of file host.h.

Referenced by HostAlloc(), and HostInitConfig().

#define HOST_QUIET 1

Definition at line 93 of file host.h.

Referenced by DetectDetectionFilterRegister(), DetectIPRepFree(), DetectThresholdRegister(), and SCThresholdConfParseFile().

#define HOST_VERBOSE 0

Definition at line 92 of file host.h.

Referenced by PostRunDeinit().

#define HostDecrUsecnt ( h ) (void)SC_ATOMIC_SUB((h)->use_cnt, 1)

Definition at line 114 of file host.h.

Referenced by HostRelease(), and SRepHostTimedOut().

#define HostDeReference ( src_h_ptr )

Value:

do {               \
        if (*(src_h_ptr) != NULL) {                   \
            HostDecrUsecnt(*(src_h_ptr));             \
            *(src_h_ptr) = NULL;                      \
        }                                             \
    } while (0)

Definition at line 124 of file host.h.

#define HostIncrUsecnt ( h ) (void)SC_ATOMIC_ADD((h)->use_cnt, 1)

Definition at line 112 of file host.h.

Referenced by HostGetHostFromHash(), HostLookupHostFromHash(), and SRepLoadFileFromFD().

#define HostReference	(	dst_h_ptr,
		h
	)

Value:

do {            \
        if ((h) != NULL) {                          \
            HostIncrUsecnt((h));                    \
            *(dst_h_ptr) = h;                       \
        }                                           \
    } while (0)

Definition at line 117 of file host.h.

Referenced by DetectIPRepRegister().

#define HRLOCK_DESTROY ( fb ) SCMutexDestroy(&(fb)->lock)

Definition at line 50 of file host.h.

Referenced by HostShutdown(), IPPairShutdown(), and THashShutdown().

#define HRLOCK_INIT ( fb ) SCMutexInit(&(fb)->lock, NULL)

Definition at line 49 of file host.h.

Referenced by HostInitConfig(), and IPPairInitConfig().

#define HRLOCK_LOCK ( fb ) SCMutexLock(&(fb)->lock)

Definition at line 51 of file host.h.

Referenced by HostCleanup(), HostGetHostFromHash(), HostLookupHostFromHash(), IPPairCleanup(), IPPairGetIPPairFromHash(), IPPairLookupIPPairFromHash(), THashCleanup(), THashGetFromHash(), THashLookupFromHash(), and THashWalk().

#define HRLOCK_MUTEX

Spinlocks or Mutex for the flow buckets.

Definition at line 32 of file host.h.

#define HRLOCK_TRYLOCK ( fb ) SCMutexTrylock(&(fb)->lock)

Definition at line 52 of file host.h.

Referenced by HostLookupHostFromHash(), HostTimeoutHash(), IPPairLookupIPPairFromHash(), IPPairTimeoutHash(), and THashLookupFromHash().

#define HRLOCK_TYPE SCMutex

Definition at line 48 of file host.h.

#define HRLOCK_UNLOCK ( fb ) SCMutexUnlock(&(fb)->lock)

Definition at line 53 of file host.h.

Referenced by HostCleanup(), HostGetHostFromHash(), HostLookupHostFromHash(), HostTimeoutHash(), IPPairCleanup(), IPPairGetIPPairFromHash(), IPPairLookupIPPairFromHash(), IPPairTimeoutHash(), THashCleanup(), THashGetFromHash(), THashLookupFromHash(), and THashWalk().

Typedef Documentation

typedef struct Host_ Host

typedef struct HostConfig_ HostConfig

Function Documentation

struct HostHashRow_ __attribute__ ( (aligned(CLS)) )

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 * )

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 * )

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 * )

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 * )

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 * )

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 * )

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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SC_ATOMIC_DECLARE	(	uint64_t	,
		host_memuse
	)

SC_ATOMIC_DECLARE	(	uint32_t	,
		host_counter
	)

SC_ATOMIC_DECLARE	(	uint32_t	,
		host_prune_idx
	)

Variable Documentation

Host* head

Definition at line 733 of file host.h.

HostConfig host_config

Definition at line 131 of file host.h.

Referenced by HostCleanup(), HostGetMemcap(), HostInitConfig(), HostLookupHostFromHash(), HostPrintStats(), HostSetMemcap(), HostShutdown(), and HostTimeoutHash().

HostHashRow* host_hash

host hash table

Definition at line 90 of file host.h.

Referenced by HostCleanup(), HostGetHostFromHash(), HostInitConfig(), HostLookupHostFromHash(), HostShutdown(), and HostTimeoutHash().

HRLOCK_TYPE lock

Definition at line 732 of file host.h.

Host* tail

Definition at line 734 of file host.h.

Data Structures

Macros

Typedefs

Functions

Variables

Detailed Description

Macro Definition Documentation

Typedef Documentation

Function Documentation

Variable Documentation