1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
/* in_cksum.h
* 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(const vec_t *vec, int veclen);
guint16 in_cksum_shouldbe(guint16 sum, guint16 computed_sum);
#endif /* __IN_CKSUM_H__ */
|
