*
* 2004 Richard van der Hoff <richardv@mxtelecom.com>
*
- * $Id$
- *
* 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.
+ * SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef __CRC16_H__
@param buf The buffer containing the data.
@param len The number of bytes to include in the computation.
@return The CRC16 X.25 CCITT checksum. */
-WS_DLL_PUBLIC guint16 crc16_x25_ccitt(const guint8 *buf, guint len);
+WS_DLL_PUBLIC guint16 crc16_x25_ccitt_seed(const guint8 *buf, guint len, guint16 seed);
/** Compute CRC16 CCITT checksum of a buffer of data. If computing the
* checksum over multiple buffers and you want to feed the partial CRC16
@return The CRC16 CCITT checksum (using the given seed). */
WS_DLL_PUBLIC guint16 crc16_ccitt_seed(const guint8 *buf, guint len, guint16 seed);
+/** Compute the 16bit CRC_A value of a buffer as defined in ISO14443-3.
+ @param buf The buffer containing the data.
+ @param len The number of bytes to include in the computation.
+ @return the CRC16 checksum for the buffer */
+WS_DLL_PUBLIC guint16 crc16_iso14443a(const guint8 *buf, guint len);
+
/** Calculates a CRC16 checksum for the given buffer with the polynom
* 0x5935 using a precompiled CRC table
* @param buf a pointer to a buffer of the given length
*/
WS_DLL_PUBLIC guint16 crc16_0x755B(const guint8 *buf, guint32 len, guint16 seed);
+/** Computes CRC16 checksum for the given data with the polynom 0x9949 using
+ * precompiled CRC table
+ * @param buf a pointer to a buffer of the given length
+ * @param len the length of the given buffer
+ * @param seed The seed to use.
+ * @return the CRC16 checksum for the buffer
+ */
+WS_DLL_PUBLIC guint16 crc16_0x9949_seed(const guint8 *buf, guint len, guint16 seed);
+
+/** Computes CRC16 checksum for the given data with the polynom 0x3D65 using
+ * precompiled CRC table
+ * @param buf a pointer to a buffer of the given length
+ * @param len the length of the given buffer
+ * @param seed The seed to use.
+ * @return the CRC16 checksum for the buffer
+ */
+WS_DLL_PUBLIC guint16 crc16_0x3D65_seed(const guint8 *buf, guint len, guint16 seed);
+
+/** Computes CRC16 checksum for the given data with the polynom 0x080F using
+ * precompiled CRC table
+ * @param buf a pointer to a buffer of the given length
+ * @param len the length of the given buffer
+ * @param seed The seed to use.
+ * @return the CRC16 checksum for the buffer
+ */
+WS_DLL_PUBLIC guint16 crc16_0x080F_seed(const guint8 *buf, guint len, guint16 seed);
+
#ifdef __cplusplus
}
#endif /* __cplusplus */