Adding upstream version 4.2.2.upstream/4.2.2

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

1 files changed, 53 insertions, 0 deletions

diff --git a/wsutil/crc8.h b/wsutil/crc8.h
new file mode 100644
index 00000000..8695640b
--- /dev/null
+++ b/wsutil/crc8.h
@@ -0,0 +1,53 @@
+/** @file
+ * Declaration of CRC-8 routine and tables
+ *
+ * 2011 Roland Knall <rknall@gmail.com>
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#ifndef __CRC8_H__
+#define __CRC8_H__
+
+#include <wireshark.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/** Calculates a CRC8 checksum for the given buffer with the polynom
+ *  0x2F using the 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 CRC8 checksum for the buffer
+ */
+WS_DLL_PUBLIC uint8_t crc8_0x2F(const uint8_t *buf, uint32_t len, uint8_t seed);
+
+/** Calculates a CRC8 checksum for the given buffer with the polynom
+ *  0x37 using the 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 CRC8 checksum for the buffer
+ */
+WS_DLL_PUBLIC uint8_t crc8_0x37(const uint8_t *buf, uint32_t len, uint8_t seed);
+
+/** Calculates a CRC8 checksum for the given buffer with the polynom
+ *  0x3B using the 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 CRC8 checksum for the buffer
+ */
+WS_DLL_PUBLIC uint8_t crc8_0x3B(const uint8_t *buf, uint32_t len, uint8_t seed);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* crc8.h */