2 This file is part of GNUnet
3 Copyright (C) 2009, 2011 GNUnet e.V.
5 GNUnet is free software: you can redistribute it and/or modify it
6 under the terms of the GNU Affero General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
8 or (at your option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Affero General Public License for more details.
15 You should have received a copy of the GNU Affero General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
19 * @file src/fragmentation/fragmentation.h
20 * @brief library to help fragment messages
21 * @author Christian Grothoff
23 #ifndef FRAGMENTATION_H
24 #define FRAGMENTATION_H
26 #include "gnunet_fragmentation_lib.h"
28 GNUNET_NETWORK_STRUCT_BEGIN
31 * Header for a message fragment. Followed by the
40 struct GNUNET_MessageHeader header;
45 uint32_t fragment_id GNUNET_PACKED;
48 * Total message size of the original message.
50 uint16_t total_size GNUNET_PACKED;
53 * Absolute offset (in bytes) of this fragment in the original
54 * message. Will be a multiple of the MTU.
56 uint16_t offset GNUNET_PACKED;
62 * Message fragment acknowledgement.
64 struct FragmentAcknowledgement
70 struct GNUNET_MessageHeader header;
75 uint32_t fragment_id GNUNET_PACKED;
78 * Bits that are being acknowledged, in big-endian.
79 * (bits that are set correspond to fragments that
80 * have not yet been received).
82 uint64_t bits GNUNET_PACKED;
85 GNUNET_NETWORK_STRUCT_END