#include "tlv_p.h"
#include <gwenhywfar/debug.h>
#include <gwenhywfar/inherit.h>
#include <gwenhywfar/misc.h>
#include <gwenhywfar/text.h>
#include <stdlib.h>
#include <assert.h>
#include <string.h>

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Macros
#define	BER_TLV_TAG_FIRST_BYTE_BYTE_FOLLOWS 0b00011111
#define	BER_TLV_TAG_IS_CONSTRUCTED 0b00100000
#define	BER_TLV_TAG_SECOND_BYTE_BYTE_FOLLOWS 0b10000000
#define	DISABLE_DEBUGLOG

Functions
int	GWEN_TLV_Buffer_To_DB (GWEN_DB_NODE dbRecord, GWEN_BUFFER mbuf, int len)
GWEN_TLV *	GWEN_TLV_create (unsigned int tagType, unsigned int tagMode, const void *p, unsigned int dlen, int isBerTlv)
int	GWEN_TLV_DirectlyToBuffer (unsigned int tagType, unsigned int tagMode, const void tagData, int tagLength, int isBerTlv, GWEN_BUFFER mbuf)
void	GWEN_TLV_free (GWEN_TLV *tlv)
GWEN_TLV *	GWEN_TLV_fromBuffer (GWEN_BUFFER *mbuf, int isBerTlv)
unsigned int	GWEN_TLV_GetClass (const GWEN_TLV *tlv)
const void *	GWEN_TLV_GetTagData (const GWEN_TLV *tlv)
unsigned int	GWEN_TLV_GetTagLength (const GWEN_TLV *tlv)
unsigned int	GWEN_TLV_GetTagSize (const GWEN_TLV *tlv)
unsigned int	GWEN_TLV_GetTagType (const GWEN_TLV *tlv)
int	GWEN_TLV_IsBerTlv (const GWEN_TLV *tlv)
int	GWEN_TLV_IsContructed (const GWEN_TLV *tlv)
GWEN_TLV *	GWEN_TLV_new (void)
uint32_t	GWEN_TLV_ParseLength (GWEN_BUFFER mbuf, uint32_t tag_len_len)
int	GWEN_TLV_ReadHeader (GWEN_TLV tlv, const uint8_t p, uint32_t size, int isBerTlv)
int	GWEN_TLV_toBuffer (GWEN_TLV tlv, GWEN_BUFFER mbuf)
int	GWEN_TLV_WriteHeader (unsigned int tagType, unsigned int tagMode, uint64_t tagLength, int isBerTlv, GWEN_BUFFER *mbuf)
static void	hex2char (char byte, char *character)

Macro Definition Documentation

◆ BER_TLV_TAG_FIRST_BYTE_BYTE_FOLLOWS

#define BER_TLV_TAG_FIRST_BYTE_BYTE_FOLLOWS 0b00011111

Definition at line 28 of file tlv.c.

Referenced by GWEN_TLV_Buffer_To_DB(), and GWEN_TLV_ParseLength().

◆ BER_TLV_TAG_IS_CONSTRUCTED

#define BER_TLV_TAG_IS_CONSTRUCTED 0b00100000

Definition at line 30 of file tlv.c.

Referenced by GWEN_TLV_Buffer_To_DB().

◆ BER_TLV_TAG_SECOND_BYTE_BYTE_FOLLOWS

#define BER_TLV_TAG_SECOND_BYTE_BYTE_FOLLOWS 0b10000000

Definition at line 29 of file tlv.c.

◆ DISABLE_DEBUGLOG

#define DISABLE_DEBUGLOG

Definition at line 15 of file tlv.c.

Function Documentation

◆ GWEN_TLV_Buffer_To_DB()

int GWEN_TLV_Buffer_To_DB	(	GWEN_DB_NODE *	dbRecord,
		GWEN_BUFFER *	mbuf,
		int	len )

Directly parses a BER-TLV structure do a DB.

Returns: number of bytes parsed

Parameters

dbRecord	GWEN_DB database with the parsed TLV structure
mbuf	buffer holding the TLV data
len	length of the data in the buffer

Definition at line 629 of file tlv.c.

References BER_TLV_TAG_FIRST_BYTE_BYTE_FOLLOWS, BER_TLV_TAG_IS_CONSTRUCTED, GWEN_Buffer_GetPosPointer(), GWEN_Buffer_IncrementPos(), GWEN_Buffer_ReadByte(), GWEN_DB_AddGroup(), GWEN_DB_Group_new(), GWEN_DB_SetBinValue(), GWEN_DB_SetCharValue(), GWEN_DB_SetIntValue(), GWEN_Memory_dealloc(), GWEN_Memory_malloc(), GWEN_Text_ToHex(), GWEN_TLV_Buffer_To_DB(), and hex2char().

Referenced by GWEN_TLV_Buffer_To_DB().

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◆ GWEN_TLV_create()

GWEN_TLV * GWEN_TLV_create	(	unsigned int	tagType,
		unsigned int	tagMode,
		const void *	p,
		unsigned int	dlen,
		int	isBerTlv )

Definition at line 58 of file tlv.c.

References DBG_ERROR, GWEN_LOGDOMAIN, and GWEN_TLV_new().

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◆ GWEN_TLV_DirectlyToBuffer()

int GWEN_TLV_DirectlyToBuffer	(	unsigned int	tagType,
		unsigned int	tagMode,
		const void *	tagData,
		int	tagLength,
		int	isBerTlv,
		GWEN_BUFFER *	mbuf )

Definition at line 294 of file tlv.c.

References GWEN_Buffer_AppendByte(), and GWEN_Buffer_AppendBytes().

Referenced by GWEN_Sar_AddAndDigestFileLink(), GWEN_Sar_AddFile(), GWEN_Sar_FileHeaderToTlv(), GWEN_Sar_Sign(), and GWEN_TLV_toBuffer().

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◆ GWEN_TLV_free()

void GWEN_TLV_free ( GWEN_TLV * tlv )

Definition at line 47 of file tlv.c.

References GWEN_FREE_OBJECT, and GWEN_LIST_FINI.

Referenced by GWEN_Sar_ScanFile().

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◆ GWEN_TLV_fromBuffer()

GWEN_TLV * GWEN_TLV_fromBuffer	(	GWEN_BUFFER *	mbuf,
		int	isBerTlv )

Definition at line 142 of file tlv.c.

References DBG_DEBUG, DBG_ERROR, GWEN_Buffer_GetBytesLeft(), GWEN_Buffer_GetPos(), GWEN_Buffer_GetPosPointer(), GWEN_Buffer_IncrementPos(), GWEN_LOGDOMAIN, and GWEN_TLV_new().

Referenced by GWEN_Sar_TlvToFileHeader().

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◆ GWEN_TLV_GetClass()

unsigned int GWEN_TLV_GetClass ( const GWEN_TLV * tlv )

Definition at line 273 of file tlv.c.

◆ GWEN_TLV_GetTagData()

const void * GWEN_TLV_GetTagData ( const GWEN_TLV * tlv )

Definition at line 134 of file tlv.c.

Referenced by GWEN_Sar_TlvToFileHeader().

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◆ GWEN_TLV_GetTagLength()

unsigned int GWEN_TLV_GetTagLength ( const GWEN_TLV * tlv )

Definition at line 118 of file tlv.c.

Referenced by GWEN_Sar_ScanFile(), and GWEN_Sar_TlvToFileHeader().

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◆ GWEN_TLV_GetTagSize()

unsigned int GWEN_TLV_GetTagSize ( const GWEN_TLV * tlv )

Definition at line 126 of file tlv.c.

Referenced by GWEN_Sar_ScanFile().

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◆ GWEN_TLV_GetTagType()

unsigned int GWEN_TLV_GetTagType ( const GWEN_TLV * tlv )

Definition at line 110 of file tlv.c.

Referenced by GWEN_Sar_ScanFile(), and GWEN_Sar_TlvToFileHeader().

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◆ GWEN_TLV_IsBerTlv()

int GWEN_TLV_IsBerTlv ( const GWEN_TLV * tlv )

Definition at line 102 of file tlv.c.

◆ GWEN_TLV_IsContructed()

int GWEN_TLV_IsContructed ( const GWEN_TLV * tlv )

Definition at line 265 of file tlv.c.

◆ GWEN_TLV_new()

GWEN_TLV * GWEN_TLV_new ( void )

Definition at line 35 of file tlv.c.

References GWEN_LIST_INIT, GWEN_NEW_OBJECT, and GWEN_TLV_new().

Referenced by GWEN_Sar_ScanFile(), GWEN_TLV_create(), GWEN_TLV_fromBuffer(), and GWEN_TLV_new().

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◆ GWEN_TLV_ParseLength()

uint32_t GWEN_TLV_ParseLength	(	GWEN_BUFFER *	mbuf,
		uint32_t *	tag_len_len )

Parses length of a BER-TLV structure.

Returns: number of bytes including the tag itself

Parameters

mbuf	buffer holding the TLV data
tag_len_len	number of bytes used for tag identifier octets and length octets

Definition at line 699 of file tlv.c.

References BER_TLV_TAG_FIRST_BYTE_BYTE_FOLLOWS, DBG_INFO, GWEN_Buffer_ReadByte(), and GWEN_LOGDOMAIN.

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◆ GWEN_TLV_ReadHeader()

int GWEN_TLV_ReadHeader	(	GWEN_TLV *	tlv,
		const uint8_t *	p,
		uint32_t	size,
		int	isBerTlv )

Reads a TLV header from a buffer (tag and length) and returns the number of bytes used by the header.

Returns: number of bytes used to specify tag and length (i.e. TLV size without the data part)

Parameters

tlv	TLV to read the header into
p	pointer to a buffer containing at least the header
size	siez of the buffer pointed to by p
isBerTlv	if !=0 then the TLV is supposed to be a BER-TLV object

Definition at line 356 of file tlv.c.

References DBG_DEBUG, DBG_ERROR, GWEN_ERROR_BAD_DATA, and GWEN_LOGDOMAIN.

Referenced by GWEN_Sar_ScanFile().

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◆ GWEN_TLV_toBuffer()

int GWEN_TLV_toBuffer	(	GWEN_TLV *	tlv,
		GWEN_BUFFER *	mbuf )

Definition at line 281 of file tlv.c.

References GWEN_TLV_DirectlyToBuffer().

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◆ GWEN_TLV_WriteHeader()

int GWEN_TLV_WriteHeader	(	unsigned int	tagType,
		unsigned int	tagMode,
		uint64_t	tagLength,
		int	isBerTlv,
		GWEN_BUFFER *	mbuf )

Directly writes a TLV header (tag and length) to the given buffer.

Returns: 0 if ok, error code otherwise

Parameters

tagType	tag id
tagMode	bits 5, 6 and 7 of the first TLV byte (bits 6/7: class, bit 5: constructed)
tagLength	length of the data part introduced by the TLV header
isBerTlv	if !=0 then the TLV is supposed to be a BER-TLV object
mbuf	buffer to receive the TLV header

Definition at line 494 of file tlv.c.

References GWEN_Buffer_AppendByte().

Referenced by GWEN_Sar_AddAndDigestFileReg(), and GWEN_Sar_AddFile().

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◆ hex2char()

void hex2char	(	char	byte,
		char *	character )

static

Definition at line 566 of file tlv.c.

Referenced by GWEN_TLV_Buffer_To_DB().

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Macros

Functions

Macro Definition Documentation

◆ BER_TLV_TAG_FIRST_BYTE_BYTE_FOLLOWS

◆ BER_TLV_TAG_IS_CONSTRUCTED

◆ BER_TLV_TAG_SECOND_BYTE_BYTE_FOLLOWS

◆ DISABLE_DEBUGLOG

Function Documentation

◆ GWEN_TLV_Buffer_To_DB()

◆ GWEN_TLV_create()

◆ GWEN_TLV_DirectlyToBuffer()

◆ GWEN_TLV_free()

◆ GWEN_TLV_fromBuffer()

◆ GWEN_TLV_GetClass()

◆ GWEN_TLV_GetTagData()

◆ GWEN_TLV_GetTagLength()

◆ GWEN_TLV_GetTagSize()

◆ GWEN_TLV_GetTagType()

◆ GWEN_TLV_IsBerTlv()

◆ GWEN_TLV_IsContructed()

◆ GWEN_TLV_new()

◆ GWEN_TLV_ParseLength()

◆ GWEN_TLV_ReadHeader()

◆ GWEN_TLV_toBuffer()

◆ GWEN_TLV_WriteHeader()

◆ hex2char()