ReactOS 0.4.16-dev-297-gc569aee
inet_chksum.h
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1
6/*
7 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without modification,
11 * are permitted provided that the following conditions are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright notice,
14 * this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright notice,
16 * this list of conditions and the following disclaimer in the documentation
17 * and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
22 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
23 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
24 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
26 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
29 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
30 * OF SUCH DAMAGE.
31 *
32 * This file is part of the lwIP TCP/IP stack.
33 *
34 * Author: Adam Dunkels <adam@sics.se>
35 *
36 */
37#ifndef LWIP_HDR_INET_CHKSUM_H
38#define LWIP_HDR_INET_CHKSUM_H
39
40#include "lwip/opt.h"
41
42#include "lwip/pbuf.h"
43#include "lwip/ip_addr.h"
44
46#ifndef SWAP_BYTES_IN_WORD
47#define SWAP_BYTES_IN_WORD(w) (((w) & 0xff) << 8) | (((w) & 0xff00) >> 8)
48#endif /* SWAP_BYTES_IN_WORD */
49
51#ifndef FOLD_U32T
52#define FOLD_U32T(u) ((u32_t)(((u) >> 16) + ((u) & 0x0000ffffUL)))
53#endif
54
55#if LWIP_CHECKSUM_ON_COPY
58# ifndef LWIP_CHKSUM_COPY
59# define LWIP_CHKSUM_COPY(dst, src, len) lwip_chksum_copy(dst, src, len)
60# ifndef LWIP_CHKSUM_COPY_ALGORITHM
61# define LWIP_CHKSUM_COPY_ALGORITHM 1
62# endif /* LWIP_CHKSUM_COPY_ALGORITHM */
63# else /* LWIP_CHKSUM_COPY */
64# define LWIP_CHKSUM_COPY_ALGORITHM 0
65# endif /* LWIP_CHKSUM_COPY */
66#else /* LWIP_CHECKSUM_ON_COPY */
67# define LWIP_CHKSUM_COPY_ALGORITHM 0
68#endif /* LWIP_CHECKSUM_ON_COPY */
69
70#ifdef __cplusplus
71extern "C" {
72#endif
73
74u16_t inet_chksum(const void *dataptr, u16_t len);
76#if LWIP_CHKSUM_COPY_ALGORITHM
77u16_t lwip_chksum_copy(void *dst, const void *src, u16_t len);
78#endif /* LWIP_CHKSUM_COPY_ALGORITHM */
79
80#if LWIP_IPV4
81u16_t inet_chksum_pseudo(struct pbuf *p, u8_t proto, u16_t proto_len,
82 const ip4_addr_t *src, const ip4_addr_t *dest);
83u16_t inet_chksum_pseudo_partial(struct pbuf *p, u8_t proto,
84 u16_t proto_len, u16_t chksum_len, const ip4_addr_t *src, const ip4_addr_t *dest);
85#endif /* LWIP_IPV4 */
86
87#if LWIP_IPV6
88u16_t ip6_chksum_pseudo(struct pbuf *p, u8_t proto, u16_t proto_len,
89 const ip6_addr_t *src, const ip6_addr_t *dest);
90u16_t ip6_chksum_pseudo_partial(struct pbuf *p, u8_t proto, u16_t proto_len,
91 u16_t chksum_len, const ip6_addr_t *src, const ip6_addr_t *dest);
92#endif /* LWIP_IPV6 */
93
94
95u16_t ip_chksum_pseudo(struct pbuf *p, u8_t proto, u16_t proto_len,
96 const ip_addr_t *src, const ip_addr_t *dest);
98 u16_t chksum_len, const ip_addr_t *src, const ip_addr_t *dest);
99
100#ifdef __cplusplus
101}
102#endif
103
104#endif /* LWIP_HDR_INET_H */
GLenum src
Definition: glext.h:6340
GLenum GLenum dst
Definition: glext.h:6340
GLfloat GLfloat p
Definition: glext.h:8902
GLenum GLsizei len
Definition: glext.h:6722
uint8_t u8_t
Definition: arch.h:125
uint16_t u16_t
Definition: arch.h:127
u16_t inet_chksum(const void *dataptr, u16_t len)
Definition: inet_chksum.c:555
u16_t ip_chksum_pseudo(struct pbuf *p, u8_t proto, u16_t proto_len, const ip_addr_t *src, const ip_addr_t *dest)
Definition: inet_chksum.c:379
u16_t inet_chksum_pbuf(struct pbuf *p)
Definition: inet_chksum.c:568
u16_t ip_chksum_pseudo_partial(struct pbuf *p, u8_t proto, u16_t proto_len, u16_t chksum_len, const ip_addr_t *src, const ip_addr_t *dest)
Definition: inet_chksum.c:526
ip6_addr_t ip_addr_t
Definition: ip_addr.h:344
int const JOCTET * dataptr
Definition: jpeglib.h:1031
static char * dest
Definition: rtl.c:135
Definition: pbuf.h:186