Adding upstream version 4.2.2.upstream/4.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 143 insertions, 0 deletions

diff --git a/epan/crc16-tvb.h b/epan/crc16-tvb.h
new file mode 100644
index 00000000..2e85dd79
--- /dev/null
+++ b/epan/crc16-tvb.h
@@ -0,0 +1,143 @@
+/** @file
+ * Declaration of CRC-16 tvbuff routines
+ *
+ * 2004 Richard van der Hoff <richardv@mxtelecom.com>
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+*/
+
+#ifndef __CRC16_TVB_H__
+#define __CRC16_TVB_H__
+
+#include "ws_symbol_export.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/** Compute CRC16 CCITT checksum of a tv buffer.
+ @param tvb The tv buffer containing the data.
+ @param len The number of bytes to include in the computation.
+ @return The CRC16 CCITT checksum. */
+WS_DLL_PUBLIC guint16 crc16_ccitt_tvb(tvbuff_t *tvb, guint len);
+
+/** Compute CRC16 X.25 CCITT checksum of a tv buffer.
+ @param tvb The tv 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_tvb(tvbuff_t *tvb, guint len);
+
+/** Compute CRC16 ASSA R3 CCITT checksum of a tv buffer.
+ @param tvb The tv buffer containing the data.
+ @param offset The offset into tv 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_r3_ccitt_tvb(tvbuff_t *tvb, int offset, guint len);
+
+/** Compute CRC16 CCITT checksum of a tv buffer.
+ @param tvb The tv buffer containing the data.
+ @param offset The offset into the tv buffer.
+ @param len The number of bytes to include in the computation.
+ @return The CRC16 CCITT checksum. */
+WS_DLL_PUBLIC guint16 crc16_ccitt_tvb_offset(tvbuff_t *tvb, guint offset, guint len);
+
+/** Compute CRC16 CCITT checksum of a tv buffer.  If computing the
+ *  checksum over multiple tv buffers and you want to feed the partial CRC16
+ *  back in, remember to take the 1's complement of the partial CRC16 first.
+ @param tvb The tv buffer containing the data.
+ @param len The number of bytes to include in the computation.
+ @param seed The seed to use.
+ @return The CRC16 CCITT checksum (using the given seed). */
+WS_DLL_PUBLIC guint16 crc16_ccitt_tvb_seed(tvbuff_t *tvb, guint len, guint16 seed);
+
+/** Compute CRC16 CCITT checksum of a tv buffer.  If computing the
+ *  checksum over multiple tv buffers and you want to feed the partial CRC16
+ *  back in, remember to take the 1's complement of the partial CRC16 first.
+ @param tvb The tv buffer containing the data.
+ @param offset The offset into the tv buffer.
+ @param len The number of bytes to include in the computation.
+ @param seed The seed to use.
+ @return The CRC16 CCITT checksum (using the given seed). */
+WS_DLL_PUBLIC guint16 crc16_ccitt_tvb_offset_seed(tvbuff_t *tvb, guint offset,
+                                           guint len, guint16 seed);
+
+/** Compute the 16bit CRC_A value of a tv buffer as defined in ISO14443-3.
+ @param tvb The tv buffer containing the data.
+ @param offset The offset into the tv buffer.
+ @param len The number of bytes to include in the computation.
+ @return The calculated CRC_A. */
+WS_DLL_PUBLIC guint16 crc16_iso14443a_tvb_offset(tvbuff_t *tvb, guint offset, guint len);
+
+/** Compute the 16bit CRC value of a tv buffer as defined in USB Standard.
+ @param tvb The tv buffer containing the data.
+ @param offset The offset into the tv buffer.
+ @param len The number of bytes to include in the computation.
+ @return The calculated CRC. */
+WS_DLL_PUBLIC guint16 crc16_usb_tvb_offset(tvbuff_t *tvb, guint offset, guint len);
+
+/** Compute the "plain" CRC16 checksum of a tv buffer using the following
+ * parameters:
+ *    Width        = 16
+ *    Poly         = 0x8005
+ *    XorIn        = 0x0000
+ *    ReflectIn    = True
+ *    XorOut       = 0x0000
+ *    ReflectOut   = True
+ *    Algorithm    = table-driven
+ *    Direct       = True
+ @param tvb The tv buffer containing the data.
+ @param offset The offset into the tv buffer.
+ @param len The number of bytes to include in the computation.
+ @return The CRC16 checksum. */
+WS_DLL_PUBLIC guint16 crc16_plain_tvb_offset(tvbuff_t *tvb, guint offset, guint len);
+
+/** Compute the "plain" CRC16 checksum of a tv buffer using the following
+ * parameters:
+ *    Width        = 16
+ *    Poly         = 0x8005
+ *    XorIn        = 0x0000
+ *    ReflectIn    = True
+ *    XorOut       = 0x0000
+ *    ReflectOut   = True
+ *    Algorithm    = table-driven
+ *    Direct       = True
+ @param tvb The tv buffer containing the data.
+ @param offset The offset into the tv buffer.
+ @param len The number of bytes to include in the computation.
+ @param crc Starting CRC value
+ @return The CRC16 checksum. */
+WS_DLL_PUBLIC guint16 crc16_plain_tvb_offset_seed(tvbuff_t *tvb, guint offset, guint len, guint16 crc);
+
+/** Compute CRC16 checksum of a tv buffer using the parameters
+ *    Width        = 16 bits
+ *    Poly         = 0x9949
+ *    Reflection   = true
+ *    Algorithm    = table-driven
+ @param tvb The tv buffer containing the data.
+ @param offset The offset into the tv buffer.
+ @param len The number of bytes to include in the computation.
+ @param seed The seed to use.
+ @return The CRC16 checksum. */
+WS_DLL_PUBLIC guint16 crc16_0x9949_tvb_offset_seed(tvbuff_t *tvb, guint offset, guint len, guint16 seed);
+
+/** Compute CRC16 checksum of a tv buffer using the parameters
+ *    Width        = 16 bits
+ *    Poly         = 0x3D65
+ *    Reflection   = true
+ *    Algorithm    = table-driven
+ @param tvb The tv buffer containing the data.
+ @param offset The offset into the tv buffer.
+ @param len The number of bytes to include in the computation.
+ @param seed The seed to use.
+ @return The CRC16 checksum. */
+WS_DLL_PUBLIC guint16 crc16_0x3D65_tvb_offset_seed(tvbuff_t *tvb, guint offset, guint len, guint16 seed);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* crc16-tvb.h */