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Examples
ip6_frag.h
Go to the documentation of this file.
1
7
/*
8
* Copyright (c) 2010 Inico Technologies Ltd.
9
* All rights reserved.
10
*
11
* Redistribution and use in source and binary forms, with or without modification,
12
* are permitted provided that the following conditions are met:
13
*
14
* 1. Redistributions of source code must retain the above copyright notice,
15
* this list of conditions and the following disclaimer.
16
* 2. Redistributions in binary form must reproduce the above copyright notice,
17
* this list of conditions and the following disclaimer in the documentation
18
* and/or other materials provided with the distribution.
19
* 3. The name of the author may not be used to endorse or promote products
20
* derived from this software without specific prior written permission.
21
*
22
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
23
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
24
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
25
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
26
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
27
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
30
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
31
* OF SUCH DAMAGE.
32
*
33
* This file is part of the lwIP TCP/IP stack.
34
*
35
* Author: Ivan Delamer <delamer@inicotech.com>
36
*
37
*
38
* Please coordinate changes and requests with Ivan Delamer
39
* <delamer@inicotech.com>
40
*/
41
#ifndef LWIP_HDR_IP6_FRAG_H
42
#define LWIP_HDR_IP6_FRAG_H
43
44
#include "
lwip/opt.h
"
45
#include "
lwip/pbuf.h
"
46
#include "
lwip/ip6_addr.h
"
47
#include "
lwip/ip6.h
"
48
#include "
lwip/netif.h
"
49
50
#ifdef __cplusplus
51
extern
"C"
{
52
#endif
53
54
55
#if LWIP_IPV6 && LWIP_IPV6_REASS
/* don't build if not configured for use in lwipopts.h */
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58
#define IP6_REASS_TMR_INTERVAL 1000
59
70
#ifndef IPV6_FRAG_COPYHEADER
71
#define IPV6_FRAG_COPYHEADER 0
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#endif
73
74
/* With IPV6_FRAG_COPYHEADER==1, a helper structure may (or, depending on the
75
* presence of extensions, may not) overwrite part of the IP header. Therefore,
76
* we copy the fields that we need from the IP header for as long as the helper
77
* structure may still be in place. This is easier than temporarily restoring
78
* those fields in the IP header each time we need to perform checks on them. */
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#if IPV6_FRAG_COPYHEADER
80
#define IPV6_FRAG_SRC(ipr) ((ipr)->src)
81
#define IPV6_FRAG_DEST(ipr) ((ipr)->dest)
82
#else
/* IPV6_FRAG_COPYHEADER */
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#define IPV6_FRAG_SRC(ipr) ((ipr)->iphdr->src)
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#define IPV6_FRAG_DEST(ipr) ((ipr)->iphdr->dest)
85
#endif
/* IPV6_FRAG_COPYHEADER */
86
90
struct
ip6_reassdata {
91
struct
ip6_reassdata *
next
;
92
struct
pbuf
*
p
;
93
struct
ip6_hdr
*iphdr;
/* pointer to the first (original) IPv6 header */
94
#if IPV6_FRAG_COPYHEADER
95
ip6_addr_p_t
src
;
/* copy of the source address in the IP header */
96
ip6_addr_p_t
dest
;
/* copy of the destination address in the IP header */
97
/* This buffer (for the part of the original header that we overwrite) will
98
* be slightly oversized, but we cannot compute the exact size from here. */
99
u8_t
orig_hdr[
sizeof
(
struct
ip6_frag_hdr
) +
sizeof
(
void
*)];
100
#else
/* IPV6_FRAG_COPYHEADER */
101
/* In this case we still need the buffer, for sending ICMPv6 replies. */
102
u8_t
orig_hdr[
sizeof
(
struct
ip6_frag_hdr
)];
103
#endif
/* IPV6_FRAG_COPYHEADER */
104
u32_t
identification;
105
u16_t
datagram_len;
106
u8_t
nexth;
107
u8_t
timer;
108
#if LWIP_IPV6_SCOPES
109
u8_t
src_zone;
/* zone of original packet's source address */
110
u8_t
dest_zone;
/* zone of original packet's destination address */
111
#endif
/* LWIP_IPV6_SCOPES */
112
};
113
114
#define ip6_reass_init()
/* Compatibility define */
115
void
ip6_reass_tmr(
void
);
116
struct
pbuf
*ip6_reass(
struct
pbuf
*
p
);
117
118
#endif
/* LWIP_IPV6 && LWIP_IPV6_REASS */
119
120
#if LWIP_IPV6 && LWIP_IPV6_FRAG
/* don't build if not configured for use in lwipopts.h */
121
122
#ifndef LWIP_PBUF_CUSTOM_REF_DEFINED
123
#define LWIP_PBUF_CUSTOM_REF_DEFINED
127
struct
pbuf_custom_ref {
129
struct
pbuf_custom pc;
131
struct
pbuf
*original;
132
};
133
#endif
/* LWIP_PBUF_CUSTOM_REF_DEFINED */
134
135
err_t
ip6_frag
(
struct
pbuf
*
p
,
struct
netif
*
netif
,
const
ip6_addr_t *
dest
);
136
137
#endif
/* LWIP_IPV6 && LWIP_IPV6_FRAG */
138
139
140
#ifdef __cplusplus
141
}
142
#endif
143
144
#endif
/* LWIP_HDR_IP6_FRAG_H */
src
GLenum src
Definition:
glext.h:6340
p
GLfloat GLfloat p
Definition:
glext.h:8902
u32_t
uint32_t u32_t
Definition:
arch.h:129
u8_t
uint8_t u8_t
Definition:
arch.h:125
u16_t
uint16_t u16_t
Definition:
arch.h:127
err_t
s8_t err_t
Definition:
err.h:96
void
Definition:
nsiface.idl:2307
ip6.h
ip6_addr.h
dest
static char * dest
Definition:
rtl.c:135
netif.h
ip6_frag
#define ip6_frag
Definition:
netiodef.h:210
opt.h
pbuf.h
ip6_addr_p_t
typedefPACK_STRUCT_END struct ip6_addr_packed ip6_addr_p_t
Definition:
ip6.h:62
next
static unsigned __int64 next
Definition:
rand_nt.c:6
ip6_frag_hdr
Definition:
ip6.h:213
ip6_hdr
Definition:
ip6.h:82
netif
Definition:
netif.h:269
pbuf
Definition:
pbuf.h:186
sizeof
ActualNumberDriverObjects * sizeof(PDRIVER_OBJECT)) PDRIVER_OBJECT *DriverObjectList
drivers
network
tcpip
lwip
src
include
lwip
ip6_frag.h
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