2 This file is part of GNUnet.
3 (C) 2001, 2002, 2003, 2004, 2009 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 2, 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 Christian Grothoff
23 * @author NOT Nathan Evans
29 #include "gnunet_common.h"
31 #define DEBUG_DV_GOSSIP GNUNET_NO
32 #define DEBUG_DV_GOSSIP_SEND GNUNET_NO
33 #define DEBUG_DV_GOSSIP_RECEIPT GNUNET_NO
34 #define DEBUG_DV_MESSAGES GNUNET_NO
35 #define DEBUG_DV GNUNET_NO
36 #define DEBUG_DV_PEER_NUMBERS GNUNET_NO
37 #define DEBUG_MESSAGE_DROP GNUNET_YES
39 typedef void (*GNUNET_DV_MessageReceivedHandler) (void *cls,
40 struct GNUNET_PeerIdentity *sender,
45 size_t sender_address_len);
48 * DV Message, contains a message that was received
49 * via DV for this peer!
51 * Sender address is copied to the end of this struct,
52 * followed by the actual message received.
54 struct GNUNET_DV_MessageReceived
57 * Type: GNUNET_MESSAGE_TYPE_TRANSPORT_DV_MESSAGE
59 struct GNUNET_MessageHeader header;
62 * The sender of the message
64 struct GNUNET_PeerIdentity sender;
67 * The message that was sent
72 * The distance to the peer that we received the message from
77 * Length of the sender address, appended to end of this message
79 uint32_t sender_address_len;
85 * DV Message, indicates that we have learned of a new DV level peer.
87 * Sender address is copied to the end of this struct.
89 struct GNUNET_DV_ConnectMessage
92 * Type: GNUNET_MESSAGE_TYPE_TRANSPORT_DV_MESSAGE
94 struct GNUNET_MessageHeader header;
97 * The sender of the message
99 struct GNUNET_PeerIdentity *sender;
102 * The message that was sent
104 struct GNUNET_MessageHeader *msg;
107 * The distance to the peer that we received the message from
112 * Length of the sender address, appended to end of this message
114 uint32_t sender_address_len;
119 * Message to return result from a send attempt
121 struct GNUNET_DV_SendResultMessage
124 * Type: GNUNET_MESSAGE_TYPE_DV_SEND_RESULT
126 struct GNUNET_MessageHeader header;
129 * Unique ID for attempted sent message.
134 * Result of attempted send, 0 for send okay,
135 * 1 for failure of any reason.
141 * Message to send a message over DV via a specific peer
143 struct GNUNET_DV_SendMessage
146 * Type: GNUNET_MESSAGE_TYPE_DV_SEND
148 struct GNUNET_MessageHeader header;
151 * Intended final recipient of this message
153 struct GNUNET_PeerIdentity target;
156 * The size of the msgbuf
158 uint32_t msgbuf_size;
166 * Unique ID for this message, for confirm callback.
171 * How long can we delay sending?
173 struct GNUNET_TIME_Relative timeout;
176 * Size of the address (appended to end of struct)
181 * The message(s) to be sent.
186 * Sender, appended to end of struct tells via whom
187 * to send this message.
193 * Message that gets sent between nodes updating dv infos
198 struct GNUNET_MessageHeader header;
201 * Cost from received from node to neighbor node, takes distance into account
203 unsigned int cost GNUNET_PACKED;
206 * Identity of neighbor we learned information about
208 struct GNUNET_PeerIdentity neighbor;
211 * PublicKey of neighbor.
213 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pkey;
216 * Neighbor ID to use when sending to this peer
218 uint32_t neighbor_id GNUNET_PACKED;
220 } p2p_dv_MESSAGE_NeighborInfo;
223 * Message that gets sent between nodes carrying information
227 struct GNUNET_MessageHeader header;
230 * Identity of peer that ultimately sent the message.
231 * Should be looked up in the set of 'neighbor_id's of
232 * the referring peer.
234 unsigned int sender GNUNET_PACKED;
237 * Identity of neighbor this message is going to. Should
238 * be looked up in the set of our own identifiers for
241 unsigned int recipient GNUNET_PACKED;
245 * Unique ID for this message.
247 unsigned int uid GNUNET_PACKED;
250 } p2p_dv_MESSAGE_Data;
253 * Message that gets sent between nodes indicating a peer
258 struct GNUNET_MessageHeader header;
261 * Identity of neighbor that was disconnected.
263 uint32_t peer_id GNUNET_PACKED;
265 } p2p_dv_MESSAGE_Disconnect;
268 struct GNUNET_DV_Handle *
269 GNUNET_DV_connect (struct GNUNET_SCHEDULER_Handle *sched,
270 const struct GNUNET_CONFIGURATION_Handle *cfg,
271 GNUNET_DV_MessageReceivedHandler receive_handler,
272 void *receive_handler_cls);