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/** @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 uint8_t *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 uint16_t ip_checksum(const uint8_t *ptr, int len);
WS_DLL_PUBLIC uint16_t 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);
uint16_t in_cksum_shouldbe(uint16_t sum, uint16_t computed_sum);
#endif /* __IN_CKSUM_H__ */
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