2 This file is part of GNUnet.
3 (C) 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
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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.
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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 * @file transport/transport.h
23 * @brief common internal definitions for transport service
24 * @author Christian Grothoff
29 #include "gnunet_crypto_lib.h"
30 #include "gnunet_time_lib.h"
31 #include "gnunet_transport_service.h"
33 #define DEBUG_TRANSPORT GNUNET_NO
34 #define DEBUG_TRANSPORT_TIMEOUT GNUNET_NO
35 #define DEBUG_TRANSPORT_DISCONNECT GNUNET_NO
38 * For how long do we allow unused bandwidth
39 * from the past to carry over into the future? (in ms)
41 #define MAX_BANDWIDTH_CARRY 5000
44 * How often do we (at most) do a full quota
45 * recalculation? (in ms)
47 #define MIN_QUOTA_REFRESH_TIME 2000
50 * Message from the transport service to the library
51 * informing about neighbors.
53 struct ConnectInfoMessage
57 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_CONNECT
59 struct GNUNET_MessageHeader header;
62 * Transport distance metric (i.e. hops for DV)
69 struct GNUNET_TIME_RelativeNBO latency;
72 * Identity of the new neighbour.
74 struct GNUNET_PeerIdentity id;
80 * Message from the transport service to the library
81 * informing about disconnects.
83 struct DisconnectInfoMessage
87 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT
89 struct GNUNET_MessageHeader header;
92 * Reserved, always zero.
94 uint32_t reserved GNUNET_PACKED;
97 * Who got disconnected?
99 struct GNUNET_PeerIdentity peer;
105 * Message used to set a particular bandwidth quota. Send
106 * TO the service to set an incoming quota, send FROM the
107 * service to update an outgoing quota.
109 struct QuotaSetMessage
113 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_NEIGHBOUR_INFO
115 struct GNUNET_MessageHeader header;
118 * Quota in bytes per ms, 0 to drop everything;
119 * in network byte order.
121 uint32_t quota_in GNUNET_PACKED;
124 * About which peer are we talking here?
126 struct GNUNET_PeerIdentity peer;
132 * Message used to notify the transport API about a message
133 * received from the network. The actual message follows.
135 struct InboundMessage
139 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_RECV
141 struct GNUNET_MessageHeader header;
146 uint32_t reserved GNUNET_PACKED;
151 struct GNUNET_TIME_RelativeNBO latency;
154 * Which peer sent the message?
156 struct GNUNET_PeerIdentity peer;
167 * Message used to notify the transport API that it can
168 * send another message to the transport service.
174 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_OK
176 struct GNUNET_MessageHeader header;
179 * GNUNET_OK if the transmission succeeded,
180 * GNUNET_SYSERR if it failed (i.e. network disconnect);
181 * in either case, it is now OK for this client to
182 * send us another message for the given peer.
184 uint32_t success GNUNET_PACKED;
189 struct GNUNET_TIME_RelativeNBO latency;
192 * Which peer can send more now?
194 struct GNUNET_PeerIdentity peer;
200 * Message used to notify the transport service about a message
201 * to be transmitted to another peer. The actual message follows.
203 struct OutboundMessage
207 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_SEND
209 struct GNUNET_MessageHeader header;
214 uint32_t priority GNUNET_PACKED;
219 struct GNUNET_TIME_RelativeNBO timeout;
222 * Which peer should receive the message?
224 struct GNUNET_PeerIdentity peer;
230 * Message from the library to the transport service
231 * asking for converting a transport address to a
232 * human-readable UTF-8 string.
234 struct AddressLookupMessage
238 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_LOOKUP
240 struct GNUNET_MessageHeader header;
243 * Should the conversion use numeric IP addresses (otherwise
244 * a reverse DNS lookup is OK -- if applicable).
246 int32_t numeric_only GNUNET_PACKED;
249 * timeout to give up.
251 struct GNUNET_TIME_AbsoluteNBO timeout;
254 * Length of the (binary) address in bytes, in big-endian.
256 uint32_t addrlen GNUNET_PACKED;
258 /* followed by 'addrlen' bytes of the actual address, then
259 followed by the 0-terminated name of the transport */
265 * Change in blacklisting (either request or notification,
266 * depending on which direction it is going).
268 struct BlacklistMessage
272 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_BLACKLIST
274 struct GNUNET_MessageHeader header;
277 * Reserved (for alignment).
279 uint32_t reserved GNUNET_PACKED;
282 * Which peer is being blacklisted (or has seen its
283 * blacklisting expire)?
285 struct GNUNET_PeerIdentity peer;
288 * Until what time is this peer blacklisted (zero for
289 * no longer blacklisted).
291 struct GNUNET_TIME_AbsoluteNBO until;
296 /* end of transport.h */