2 This file is part of GNUnet.
3 (C) 2013 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 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 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
22 * @author Florian Dold
23 * @file set/set_protocol.h
24 * @brief Peer-to-Peer messages for gnunet set
26 #ifndef SET_PROTOCOL_H
27 #define SET_PROTOCOL_H
30 #include "gnunet_common.h"
33 GNUNET_NETWORK_STRUCT_BEGIN
35 struct OperationRequestMessage
38 * Type: #GNUNET_MESSAGE_TYPE_SET_P2P_OPERATION_REQUEST
40 struct GNUNET_MessageHeader header;
43 * Operation to request, values from `enum GNUNET_SET_OperationType`
45 uint32_t operation GNUNET_PACKED;
48 * Salt to use for this operation.
50 uint32_t salt GNUNET_PACKED;
53 * For Intersection: my element count
55 uint32_t element_count GNUNET_PACKED;
58 * Application-specific identifier of the request.
60 struct GNUNET_HashCode app_id;
62 /* rest: optional message */
69 * Type: #GNUNET_MESSAGE_TYPE_SET_P2P_IBF
71 struct GNUNET_MessageHeader header;
74 * Order of the whole ibf, where
75 * num_buckets = 2^order
85 * Offset of the strata in the rest of the message
87 uint16_t offset GNUNET_PACKED;
90 * Salt used when hashing elements for this IBF.
92 uint32_t salt GNUNET_PACKED;
99 * During intersection, the first (and possibly second) message
100 * send it the number of elements in the set, to allow the peers
101 * to decide who should start with the Bloom filter.
103 struct IntersectionElementInfoMessage
106 * Type: #GNUNET_MESSAGE_TYPE_SET_INTERSECTION_P2P_ELEMENT_INFO
108 struct GNUNET_MessageHeader header;
111 * mutator used with this bloomfilter.
113 uint32_t sender_element_count GNUNET_PACKED;
119 * Bloom filter messages exchanged for set intersection calculation.
124 * Type: #GNUNET_MESSAGE_TYPE_SET_INTERSECTION_P2P_BF
126 struct GNUNET_MessageHeader header;
129 * mutator used with this bloomfilter.
131 uint32_t sender_element_count GNUNET_PACKED;
134 * mutator used with this bloomfilter.
136 uint32_t sender_mutator GNUNET_PACKED;
139 * Length of the bloomfilter data
141 uint32_t bloomfilter_total_length GNUNET_PACKED;
144 * Length of the appended bloomfilter data block
146 uint32_t bloomfilter_length GNUNET_PACKED;
149 * Length of the bloomfilter data
151 uint32_t bits_per_element GNUNET_PACKED;
154 * rest: the sender's bloomfilter
162 * Type: #GNUNET_MESSAGE_TYPE_SET_INTERSECTION_P2P_BF
164 struct GNUNET_MessageHeader header;
167 * Length of the appended bloomfilter data block
169 uint32_t chunk_length GNUNET_PACKED;
172 * offset in the bloolfilter data block, if multipart message
174 uint32_t chunk_offset GNUNET_PACKED;
177 * rest: the sender's bloomfilter
181 GNUNET_NETWORK_STRUCT_END