crc32-tvb.h File Reference

#include "ws_symbol_export.h"

Go to the source code of this file.

Functions
WS_DLL_PUBLIC uint32_t	crc32_ccitt_tvb (tvbuff_t *tvb, unsigned len)
WS_DLL_PUBLIC uint32_t	crc32_ccitt_tvb_offset (tvbuff_t *tvb, unsigned offset, unsigned len)
WS_DLL_PUBLIC uint32_t	crc32_ccitt_tvb_seed (tvbuff_t *tvb, unsigned len, uint32_t seed)
WS_DLL_PUBLIC uint32_t	crc32c_tvb_offset_calculate (tvbuff_t *tvb, unsigned offset, unsigned len, uint32_t seed)
WS_DLL_PUBLIC uint32_t	crc32_ccitt_tvb_offset_seed (tvbuff_t *tvb, unsigned offset, unsigned len, uint32_t seed)
WS_DLL_PUBLIC uint32_t	crc32_802_tvb (tvbuff_t *tvb, unsigned len)
WS_DLL_PUBLIC uint32_t	crc32_mpeg2_tvb (tvbuff_t *tvb, unsigned len)
WS_DLL_PUBLIC uint32_t	crc32_mpeg2_tvb_offset (tvbuff_t *tvb, unsigned offset, unsigned len)
WS_DLL_PUBLIC uint32_t	crc32_mpeg2_tvb_seed (tvbuff_t *tvb, unsigned len, uint32_t seed)
WS_DLL_PUBLIC uint32_t	crc32_mpeg2_tvb_offset_seed (tvbuff_t *tvb, unsigned offset, unsigned len, uint32_t seed)
WS_DLL_PUBLIC uint32_t	crc32_0x0AA725CF_tvb_offset_seed (tvbuff_t *tvb, unsigned offset, unsigned len, uint32_t seed)

Detailed Description

Declaration of CRC-32 tvbuff routines

Wireshark - Network traffic analyzer By Gerald Combs geral.nosp@m.d@wi.nosp@m.resha.nosp@m.rk.o.nosp@m.rg Copyright 1998 Gerald Combs

SPDX-License-Identifier: GPL-2.0-or-later

Function Documentation

crc32_0x0AA725CF_tvb_offset_seed()

WS_DLL_PUBLIC uint32_t crc32_0x0AA725CF_tvb_offset_seed	(	tvbuff_t *	tvb,
		unsigned	offset,
		unsigned	len,
		uint32_t	seed
	)

Compute CRC32 checksum of a tv buffer using the parameters Width = 32 bits Poly = 0x0AA725CF Reflection = true Algorithm = table-driven

Parameters

tvb	The tv buffer containing the data.
offset	The offset into the tv buffer.
len	The number of bytes to include in the computation.
seed	The seed to use.

Returns

The CRC32 checksum.

crc32_802_tvb()

WS_DLL_PUBLIC uint32_t crc32_802_tvb	(	tvbuff_t *	tvb,
		unsigned	len
	)

Compute IEEE 802.x CRC32 checksum of a tv buffer.

Parameters

tvb	The tv buffer containing the data.
len	The number of bytes to include in the computation.

Returns

The IEEE 802.x CRC32 checksum.

crc32_ccitt_tvb()

WS_DLL_PUBLIC uint32_t crc32_ccitt_tvb	(	tvbuff_t *	tvb,
		unsigned	len
	)

Compute CRC32 CCITT checksum of a tv buffer.

Parameters

tvb	The tv buffer containing the data.
len	The number of bytes to include in the computation.

Returns

The CRC32 CCITT checksum.

crc32_ccitt_tvb_offset()

WS_DLL_PUBLIC uint32_t crc32_ccitt_tvb_offset	(	tvbuff_t *	tvb,
		unsigned	offset,
		unsigned	len
	)

Compute CRC32 CCITT checksum of a tv buffer.

Parameters

tvb	The tv buffer containing the data.
offset	The offset into the tv buffer.
len	The number of bytes to include in the computation.

Returns

The CRC32 CCITT checksum.

crc32_ccitt_tvb_offset_seed()

WS_DLL_PUBLIC uint32_t crc32_ccitt_tvb_offset_seed	(	tvbuff_t *	tvb,
		unsigned	offset,
		unsigned	len,
		uint32_t	seed
	)

Compute CRC32 CCITT checksum of a tv buffer. If computing the checksum over multiple tv buffers and you want to feed the partial CRC32 back in, remember to take the 1's complement of the partial CRC32 first.

Parameters

tvb	The tv buffer containing the data.
offset	The offset into the tv buffer.
len	The number of bytes to include in the computation.
seed	The seed to use.

Returns

The CRC32 CCITT checksum (using the given seed).

crc32_ccitt_tvb_seed()

WS_DLL_PUBLIC uint32_t crc32_ccitt_tvb_seed	(	tvbuff_t *	tvb,
		unsigned	len,
		uint32_t	seed
	)

Compute CRC32 CCITT checksum of a tv buffer. If computing the checksum over multiple tv buffers and you want to feed the partial CRC32 back in, remember to take the 1's complement of the partial CRC32 first.

Parameters

tvb	The tv buffer containing the data.
len	The number of bytes to include in the computation.
seed	The seed to use.

Returns

The CRC32 CCITT checksum (using the given seed).

crc32_mpeg2_tvb()

WS_DLL_PUBLIC uint32_t crc32_mpeg2_tvb	(	tvbuff_t *	tvb,
		unsigned	len
	)

Compute MPEG-2 CRC32 checksum of a tv buffer.

Parameters

tvb	The tv buffer containing the data.
len	The number of bytes to include in the computation.

Returns

The MPEG-2 CRC32 checksum.

crc32_mpeg2_tvb_offset()

WS_DLL_PUBLIC uint32_t crc32_mpeg2_tvb_offset	(	tvbuff_t *	tvb,
		unsigned	offset,
		unsigned	len
	)

Compute MPEG-2 CRC32 checksum of a tv buffer.

Parameters

tvb	The tv buffer containing the data.
offset	The offset into the tv buffer.
len	The number of bytes to include in the computation.

Returns

The MPEG-2 CRC32 checksum.

crc32_mpeg2_tvb_offset_seed()

WS_DLL_PUBLIC uint32_t crc32_mpeg2_tvb_offset_seed	(	tvbuff_t *	tvb,
		unsigned	offset,
		unsigned	len,
		uint32_t	seed
	)

Compute MPEG-2 CRC32 checksum of a buffer of data.

Parameters

tvb	The tv buffer containing the data.
offset	The offset into the tv buffer.
len	The number of bytes to include in the computation.
seed	The seed to use.

Returns

The CRC32 MPEG-2 checksum (using the given seed).

crc32_mpeg2_tvb_seed()

WS_DLL_PUBLIC uint32_t crc32_mpeg2_tvb_seed	(	tvbuff_t *	tvb,
		unsigned	len,
		uint32_t	seed
	)

Compute MPEG-2 CRC32 checksum of a buffer of data.

Parameters

tvb	The tv buffer containing the data.
len	The number of bytes to include in the computation.
seed	The seed to use.

Returns

The CRC32 MPEG-2 checksum (using the given seed).

crc32c_tvb_offset_calculate()

WS_DLL_PUBLIC uint32_t crc32c_tvb_offset_calculate	(	tvbuff_t *	tvb,
		unsigned	offset,
		unsigned	len,
		uint32_t	seed
	)

Compute CRC32C checksum of a tv buffer. If computing the checksum over multiple tv buffers and you want to feed the partial CRC32 back in, remember to take the 1's complement of the partial CRC32 first.

Parameters

tvb	The tv buffer containing the data.
offset	The offset into the tv buffer.
len	The number of bytes to include in the computation.
seed	The seed to use.

Returns

The CRC32C checksum (using the given seed).