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/>.
18 SPDX-License-Identifier: AGPL3.0-or-later
21 * @file src/fragmentation/fragmentation.h
22 * @brief library to help fragment messages
23 * @author Christian Grothoff
25 #ifndef FRAGMENTATION_H
26 #define FRAGMENTATION_H
28 #include "gnunet_fragmentation_lib.h"
30 GNUNET_NETWORK_STRUCT_BEGIN
33 * Header for a message fragment. Followed by the
42 struct GNUNET_MessageHeader header;
47 uint32_t fragment_id GNUNET_PACKED;
50 * Total message size of the original message.
52 uint16_t total_size GNUNET_PACKED;
55 * Absolute offset (in bytes) of this fragment in the original
56 * message. Will be a multiple of the MTU.
58 uint16_t offset GNUNET_PACKED;
64 * Message fragment acknowledgement.
66 struct FragmentAcknowledgement
72 struct GNUNET_MessageHeader header;
77 uint32_t fragment_id GNUNET_PACKED;
80 * Bits that are being acknowledged, in big-endian.
81 * (bits that are set correspond to fragments that
82 * have not yet been received).
84 uint64_t bits GNUNET_PACKED;
87 GNUNET_NETWORK_STRUCT_END