blob: 2f3ea67bb25c2fe8fb36ca2d54ecb5adb4ba7000 (
plain)
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
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/*
This file is part of GNUnet
(C) 2009, 2011 Christian Grothoff (and other contributing authors)
GNUnet is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published
by the Free Software Foundation; either version 3, or (at your
option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNUnet; see the file COPYING. If not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
/**
* @file src/fragmentation/fragmentation.h
* @brief library to help fragment messages
* @author Christian Grothoff
*/
#ifndef FRAGMENTATION_H
#define FRAGMENTATION_H
#include "platform.h"
#include "gnunet_fragmentation_lib.h"
GNUNET_NETWORK_STRUCT_BEGIN
/**
* Header for a message fragment. Followed by the
* original message.
*/
struct FragmentHeader
{
/**
* Message header.
*/
struct GNUNET_MessageHeader header;
/**
* Unique fragment ID.
*/
uint32_t fragment_id;
/**
* Total message size of the original message.
*/
uint16_t total_size;
/**
* Absolute offset (in bytes) of this fragment in the original
* message. Will be a multiple of the MTU.
*/
uint16_t offset;
};
/**
* Message fragment acknowledgement.
*/
struct FragmentAcknowledgement
{
/**
* Message header.
*/
struct GNUNET_MessageHeader header;
/**
* Unique fragment ID.
*/
uint32_t fragment_id;
/**
* Bits that are being acknowledged, in big-endian.
* (bits that are set correspond to fragments that
* have not yet been received).
*/
uint64_t bits;
};
GNUNET_NETWORK_STRUCT_END
#endif
|
