/usr/include/wireshark/epan/crc8-tvb.h is in libwireshark-dev 2.0.2+ga16e22e-1.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | /* crc8.h
*
* 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 <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/**
* Check the final crc value(Receiver code)
*
* \param p The tv buffer containing the data.
* \param len Number of bytes in the message.
* \param offset Offset in the message.
* \param received_fcs The received FCS.
* \return Returns TRUE if the checksum is correct, FALSE if it is not correct
*****************************************************************************/
#ifndef __CRC8_TVB_H__
#define __CRC8_TVB_H__
extern gboolean check_fcs(tvbuff_t *p, guint8 len, guint8 offset, guint8 received_fcs);
extern guint8 get_crc8_ieee8023_epon(tvbuff_t *p, guint8 len, guint8 offset);
#endif /* __CRC8_TVB_H__ */
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