crc8-tvb.h File Reference

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Functions
bool	check_fcs (tvbuff_t *p, uint8_t len, uint8_t offset, uint8_t received_fcs)
uint8_t	get_crc8_ieee8023_epon (tvbuff_t *p, uint8_t len, uint8_t offset)

Detailed Description

Checks the checksum (FCS) of the 3G TS 27.010 Multiplexing protocol. The algorithm to check the FCS is described in "3G TS 27.010 V2.0.0 (1999-06)" See: www.3gpp.org/ftp/tsg_t/TSG_T/TSGT_04/docs/PDFs/TP-99119.pdf or: http://www.3gpp.org/ftp/Specs/html-info/27010.htm

Polynom: (x^8 + x^2 + x^1 + 1)

2011 Hans-Christoph Schemmel <hans-christoph.schemmel[AT]cinterion.com> 2014 Philip Rosenberg-Watt <p.rosenberg-watt[at]cablelabs.com>

• Added CRC-8 for IEEE 802.3 EPON, with shift register initialized to 0x00 See IEEE Std 802.3-2012 Section 5, Clause 65.1.3.2.3.

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

check_fcs()

bool check_fcs ( tvbuff_t *  p, uint8_t  len, uint8_t  offset, uint8_t  received_fcs  )

extern

Check the final crc value(Receiver code)

Parameters

p	The tv buffer containing the data.
len	Number of bytes in the message.
offset	Offset in the message.
received_fcs	The received FCS.

Returns

Returns true if the checksum is correct, false if it is not correct