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-rw-r--r--src/consensus/consensus_protocol.h137
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diff --git a/src/consensus/consensus_protocol.h b/src/consensus/consensus_protocol.h
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1/*
2 This file is part of GNUnet
3 Copyright (C) 2012 GNUnet e.V.
4
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.
9
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.
14
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/>.
17
18 SPDX-License-Identifier: AGPL3.0-or-later
19 */
20
21
22/**
23 * @file consensus/consensus_protocol.h
24 * @brief p2p message definitions for consensus
25 * @author Florian Dold
26 */
27
28#ifndef GNUNET_CONSENSUS_PROTOCOL_H
29#define GNUNET_CONSENSUS_PROTOCOL_H
30
31#include "platform.h"
32#include "gnunet_util_lib.h"
33#include "gnunet_common.h"
34#include "gnunet_protocols.h"
35
36
37GNUNET_NETWORK_STRUCT_BEGIN
38
39/**
40 * Sent as context message for set reconciliation.
41 *
42 * Essentially contains all the fields
43 * from 'struct TaskKey', but in NBO.
44 */
45struct GNUNET_CONSENSUS_RoundContextMessage
46{
47 /**
48 * Type: #GNUNET_MESSAGE_TYPE_CONSENSUS_P2P_ROUND_CONTEXT
49 */
50 struct GNUNET_MessageHeader header;
51
52 /**
53 * A value from 'enum PhaseKind'.
54 */
55 uint16_t kind GNUNET_PACKED;
56
57 /**
58 * Number of the first peer
59 * in canonical order.
60 */
61 int16_t peer1 GNUNET_PACKED;
62
63 /**
64 * Number of the second peer in canonical order.
65 */
66 int16_t peer2 GNUNET_PACKED;
67
68 /**
69 * Repetition of the gradecast phase.
70 */
71 int16_t repetition GNUNET_PACKED;
72
73 /**
74 * Leader in the gradecast phase.
75 *
76 * Can be different from both peer1 and peer2.
77 */
78 int16_t leader GNUNET_PACKED;
79
80 /**
81 * Non-zero if this set reconciliation
82 * had elements removed because they were contested.
83 *
84 * Will be considered when grading broadcasts.
85 *
86 * Ignored for set operations that are not within gradecasts.
87 */
88 uint16_t is_contested GNUNET_PACKED;
89};
90
91
92enum
93{
94 CONSENSUS_MARKER_CONTESTED = 1,
95 CONSENSUS_MARKER_SIZE = 2,
96};
97
98
99/**
100 * Consensus element, either marker or payload.
101 */
102struct ConsensusElement
103{
104 /**
105 * Payload element_type, only valid
106 * if this is not a marker element.
107 */
108 uint16_t payload_type GNUNET_PACKED;
109
110 /**
111 * Is this a marker element?
112 */
113 uint8_t marker;
114
115 /* rest: element data */
116};
117
118
119struct ConsensusSizeElement
120{
121 struct ConsensusElement ce;
122
123 uint64_t size GNUNET_PACKED;
124 uint8_t sender_index;
125};
126
127
128struct ConsensusStuffedElement
129{
130 struct ConsensusElement ce;
131 struct GNUNET_HashCode rand GNUNET_PACKED;
132};
133
134
135GNUNET_NETWORK_STRUCT_END
136
137#endif