util-var-name.c File Reference

#include "suricata-common.h"
#include "detect.h"
#include "util-hash-string.h"
#include "util-hashlist.h"
#include "util-var-name.h"
#include "util-validate.h"

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Data Structures
struct	VarNameStore_
struct	VariableName_
	Name2idx mapping structure for flowbits, flowvars and pktvars. More...

Macros
#define	VARNAME_HASHSIZE   0x1000
#define	VARID_HASHSIZE   0x1000

Typedefs
typedef struct VarNameStore_	VarNameStore
typedef VarNameStore *	VarNameStorePtr
typedef struct VariableName_	VariableName
	Name2idx mapping structure for flowbits, flowvars and pktvars.

Functions
void	VarNameStoreDestroy (void)
uint32_t	VarNameStoreRegister (const char *name, const enum VarTypes type)
const char *	VarNameStoreSetupLookup (const uint32_t id, const enum VarTypes type)
void	VarNameStoreUnregister (const uint32_t id, const enum VarTypes type)
int	VarNameStoreActivate (void)
const char *	VarNameStoreLookupById (const uint32_t id, const enum VarTypes type)
	find name for id+type at packet time. As the active store won't be modified, we don't need locks.
uint32_t	VarNameStoreLookupByName (const char *name, const enum VarTypes type)
	find name for id+type at packet time. As the active store won't be modified, we don't need locks.

Detailed Description

Author

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

Generic variable name utility functions

Definition in file util-var-name.c.

Macro Definition Documentation

VARID_HASHSIZE

#define VARID_HASHSIZE   0x1000

Definition at line 85 of file util-var-name.c.

VARNAME_HASHSIZE

#define VARNAME_HASHSIZE   0x1000

Definition at line 84 of file util-var-name.c.

Typedef Documentation

VariableName

typedef struct VariableName_ VariableName

Name2idx mapping structure for flowbits, flowvars and pktvars.

VarNameStore

typedef struct VarNameStore_ VarNameStore

VarNameStorePtr

typedef VarNameStore* VarNameStorePtr

Definition at line 74 of file util-var-name.c.

Function Documentation

VarNameStoreActivate()

int VarNameStoreActivate

(

void

)

Definition at line 214 of file util-var-name.c.

References BUG_ON, CreateIsoTimeString(), VarNameStore_::free_after, HashListTableAdd(), HashListTableFree(), HashListTableGetListData, HashListTableGetListHead(), HashListTableGetListNext, HashListTableInit(), VariableName_::id, VarNameStore_::ids, VariableName_::name, VarNameStore_::names, next, VariableName_::ref_cnt, SC_ATOMIC_GET, SC_ATOMIC_SET, SCCalloc, SCFree, SCLogDebug, SCMutexLock, SCMutexUnlock, SCTIME_ADD_SECS, SCTIME_CMP_LTE, TAILQ_FIRST, TAILQ_INSERT_TAIL, TAILQ_REMOVE, VARID_HASHSIZE, and VARNAME_HASHSIZE.

Referenced by DetectEngineMultiTenantSetup(), and SigGroupBuild().

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VarNameStoreDestroy()

void VarNameStoreDestroy

(

void

)

Definition at line 116 of file util-var-name.c.

References DEBUG_VALIDATE_BUG_ON, HashListTableFree(), HashListTableGetListData, HashListTableGetListHead(), HashListTableGetListNext, VariableName_::id, VarNameStore_::ids, VarNameStore_::max_id, VariableName_::name, VarNameStore_::names, next, VariableName_::ref_cnt, SC_ATOMIC_GET, SC_ATOMIC_SET, SCFree, SCLogWarning, SCMutexLock, SCMutexUnlock, TAILQ_FIRST, TAILQ_REMOVE, and VariableName_::type.

Referenced by GlobalsDestroy().

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VarNameStoreLookupById()

const char * VarNameStoreLookupById	(	const uint32_t	id,
		const enum VarTypes	type
	)

find name for id+type at packet time. As the active store won't be modified, we don't need locks.

Definition at line 299 of file util-var-name.c.

References HashListTableLookup(), VarNameStore_::ids, name, VariableName_::name, SC_ATOMIC_GET, type, and VariableName_::type.

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VarNameStoreLookupByName()

uint32_t VarNameStoreLookupByName	(	const char *	name,
		const enum VarTypes	type
	)

find name for id+type at packet time. As the active store won't be modified, we don't need locks.

Definition at line 319 of file util-var-name.c.

References HashListTableLookup(), VariableName_::id, name, VariableName_::name, VarNameStore_::names, SC_ATOMIC_GET, and type.

Referenced by DetectFlowintMatch().

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VarNameStoreRegister()

uint32_t VarNameStoreRegister	(	const char *	name,
		const enum VarTypes	type
	)

Return values

id	or 0 on error

Definition at line 155 of file util-var-name.c.

References HashListTableAdd(), HashListTableLookup(), id, VariableName_::id, VarNameStore_::ids, likely, VarNameStore_::max_id, name, VariableName_::name, VarNameStore_::names, VariableName_::ref_cnt, SCCalloc, SCFree, SCLogDebug, SCMutexLock, SCMutexUnlock, SCStrdup, type, and VariableName_::type.

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VarNameStoreSetupLookup()

const char * VarNameStoreSetupLookup	(	const uint32_t	id,
		const enum VarTypes	type
	)

Definition at line 188 of file util-var-name.c.

References HashListTableLookup(), VarNameStore_::ids, name, VariableName_::name, SCMutexLock, SCMutexUnlock, type, and VariableName_::type.

Referenced by DetectFlowbitsAnalyze(), and EngineAnalysisRules2().

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VarNameStoreUnregister()

void VarNameStoreUnregister	(	const uint32_t	id,
		const enum VarTypes	type
	)

Definition at line 201 of file util-var-name.c.

References DEBUG_VALIDATE_BUG_ON, HashListTableLookup(), VarNameStore_::ids, VariableName_::name, VariableName_::ref_cnt, SCLogDebug, SCMutexLock, SCMutexUnlock, type, and VariableName_::type.

Referenced by DetectFlowbitFree(), DetectFlowintFree(), and DetectHostbitFree().

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