2 This file is part of GNUnet
3 Copyright (C) 2012 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
23 * @file consensus/consensus_protocol.h
24 * @brief p2p message definitions for consensus
25 * @author Florian Dold
28 #ifndef GNUNET_CONSENSUS_PROTOCOL_H
29 #define GNUNET_CONSENSUS_PROTOCOL_H
32 #include "gnunet_util_lib.h"
33 #include "gnunet_common.h"
34 #include "gnunet_protocols.h"
37 GNUNET_NETWORK_STRUCT_BEGIN
40 * Sent as context message for set reconciliation.
42 * Essentially contains all the fields
43 * from 'struct TaskKey', but in NBO.
45 struct GNUNET_CONSENSUS_RoundContextMessage {
47 * Type: #GNUNET_MESSAGE_TYPE_CONSENSUS_P2P_ROUND_CONTEXT
49 struct GNUNET_MessageHeader header;
52 * A value from 'enum PhaseKind'.
54 uint16_t kind GNUNET_PACKED;
57 * Number of the first peer
60 int16_t peer1 GNUNET_PACKED;
63 * Number of the second peer in canonical order.
65 int16_t peer2 GNUNET_PACKED;
68 * Repetition of the gradecast phase.
70 int16_t repetition GNUNET_PACKED;
73 * Leader in the gradecast phase.
75 * Can be different from both peer1 and peer2.
77 int16_t leader GNUNET_PACKED;
80 * Non-zero if this set reconciliation
81 * had elements removed because they were contested.
83 * Will be considered when grading broadcasts.
85 * Ignored for set operations that are not within gradecasts.
87 uint16_t is_contested GNUNET_PACKED;
92 CONSENSUS_MARKER_CONTESTED = 1,
93 CONSENSUS_MARKER_SIZE = 2,
98 * Consensus element, either marker or payload.
100 struct ConsensusElement {
102 * Payload element_type, only valid
103 * if this is not a marker element.
105 uint16_t payload_type GNUNET_PACKED;
108 * Is this a marker element?
112 /* rest: element data */
116 struct ConsensusSizeElement {
117 struct ConsensusElement ce;
119 uint64_t size GNUNET_PACKED;
120 uint8_t sender_index;
123 struct ConsensusStuffedElement {
124 struct ConsensusElement ce;
125 struct GNUNET_HashCode rand GNUNET_PACKED;
129 GNUNET_NETWORK_STRUCT_END