1 files changed, 42 insertions, 0 deletions
diff --git a/epan/in_cksum.h b/epan/in_cksum.h
new file mode 100644
index 00000000..d0f6fdd6
--- /dev/null
+++ b/epan/in_cksum.h
@@ -0,0 +1,42 @@
+/** @file
+ * Declaration of Internet checksum routine.
+ *
+ * Copyright (c) 1988, 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef __IN_CKSUM_H__
+#define __IN_CKSUM_H__
+
+#include "ws_symbol_export.h"
+
+typedef struct {
+	const guint8 *ptr;
+	int	len;
+} vec_t;
+
+#define SET_CKSUM_VEC_PTR(vecelem, data, length) \
+	G_STMT_START { \
+		vecelem.ptr = (data); \
+		vecelem.len = (length); \
+	} G_STMT_END
+
+#define SET_CKSUM_VEC_TVB(vecelem, tvb, offset, length) \
+	G_STMT_START { \
+		vecelem.len = (length); \
+		vecelem.ptr = tvb_get_ptr((tvb), (offset), vecelem.len); \
+	} G_STMT_END
+
+WS_DLL_PUBLIC guint16 ip_checksum(const guint8 *ptr, int len);
+
+WS_DLL_PUBLIC guint16 ip_checksum_tvb(tvbuff_t *tvb, int offset, int len);
+
+WS_DLL_PUBLIC int in_cksum_ret_partial(const vec_t *vec, int veclen, uint16_t *partial);
+
+WS_DLL_PUBLIC int in_cksum(const vec_t *vec, int veclen);
+
+guint16 in_cksum_shouldbe(guint16 sum, guint16 computed_sum);
+
+#endif /* __IN_CKSUM_H__ */