2 This file is part of GNUnet.
3 (C) 2009 Christian Grothoff (and other contributing authors)
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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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17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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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_YES
36 * For how long do we allow unused bandwidth
37 * from the past to carry over into the future? (in ms)
39 #define MAX_BANDWIDTH_CARRY 5000
42 * How often do we (at most) do a full quota
43 * recalculation? (in ms)
45 #define MIN_QUOTA_REFRESH_TIME 2000
48 * Message from the transport service to the library
49 * informing about neighbors.
51 struct ConnectInfoMessage
55 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_CONNECT
57 struct GNUNET_MessageHeader header;
60 * Transport distance metric (i.e. hops for DV)
67 struct GNUNET_TIME_RelativeNBO latency;
70 * Identity of the new neighbour.
72 struct GNUNET_PeerIdentity id;
78 * Message from the transport service to the library
79 * informing about disconnects.
81 struct DisconnectInfoMessage
85 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT
87 struct GNUNET_MessageHeader header;
90 * Reserved, always zero.
92 uint32_t reserved GNUNET_PACKED;
95 * Who got disconnected?
97 struct GNUNET_PeerIdentity peer;
103 * Message used to set a particular bandwidth quota. Send
104 * TO the service to set an incoming quota, send FROM the
105 * service to update an outgoing quota.
107 struct QuotaSetMessage
111 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_NEIGHBOUR_INFO
113 struct GNUNET_MessageHeader header;
116 * Quota in bytes per ms, 0 to drop everything;
117 * in network byte order.
119 uint32_t quota_in GNUNET_PACKED;
122 * About which peer are we talking here?
124 struct GNUNET_PeerIdentity peer;
130 * Message used to notify the transport API about a message
131 * received from the network. The actual message follows.
133 struct InboundMessage
137 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_RECV
139 struct GNUNET_MessageHeader header;
144 uint32_t reserved GNUNET_PACKED;
149 struct GNUNET_TIME_RelativeNBO latency;
152 * Which peer sent the message?
154 struct GNUNET_PeerIdentity peer;
165 * Message used to notify the transport API that it can
166 * send another message to the transport service.
172 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_OK
174 struct GNUNET_MessageHeader header;
177 * GNUNET_OK if the transmission succeeded,
178 * GNUNET_SYSERR if it failed (i.e. network disconnect);
179 * in either case, it is now OK for this client to
180 * send us another message for the given peer.
182 uint32_t success GNUNET_PACKED;
187 struct GNUNET_TIME_RelativeNBO latency;
190 * Which peer can send more now?
192 struct GNUNET_PeerIdentity peer;
198 * Message used to notify the transport service about a message
199 * to be transmitted to another peer. The actual message follows.
201 struct OutboundMessage
205 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_SEND
207 struct GNUNET_MessageHeader header;
212 uint32_t priority GNUNET_PACKED;
217 struct GNUNET_TIME_RelativeNBO timeout;
220 * Which peer should receive the message?
222 struct GNUNET_PeerIdentity peer;
228 * Message from the library to the transport service
229 * asking for converting a transport address to a
230 * human-readable UTF-8 string.
232 struct AddressLookupMessage
236 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_LOOKUP
238 struct GNUNET_MessageHeader header;
241 * Should the conversion use numeric IP addresses (otherwise
242 * a reverse DNS lookup is OK -- if applicable).
244 int32_t numeric_only GNUNET_PACKED;
247 * timeout to give up.
249 struct GNUNET_TIME_AbsoluteNBO timeout;
252 * Length of the (binary) address in bytes, in big-endian.
254 uint32_t addrlen GNUNET_PACKED;
256 /* followed by 'addrlen' bytes of the actual address, then
257 followed by the 0-terminated name of the transport */
263 * Change in blacklisting (either request or notification,
264 * depending on which direction it is going).
266 struct BlacklistMessage
270 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_BLACKLIST
272 struct GNUNET_MessageHeader header;
275 * Reserved (for alignment).
277 uint32_t reserved GNUNET_PACKED;
280 * Which peer is being blacklisted (or has seen its
281 * blacklisting expire)?
283 struct GNUNET_PeerIdentity peer;
286 * Until what time is this peer blacklisted (zero for
287 * no longer blacklisted).
289 struct GNUNET_TIME_AbsoluteNBO until;
294 /* end of transport.h */