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
26 #include "gnunet_crypto_lib.h"
27 #include "gnunet_time_lib.h"
28 #include "gnunet_transport_service.h"
30 #define DEBUG_TRANSPORT GNUNET_YES
33 * For how long do we allow unused bandwidth
34 * from the past to carry over into the future? (in ms)
36 #define MAX_BANDWIDTH_CARRY 5000
39 * How often do we (at most) do a full quota
40 * recalculation? (in ms)
42 #define MIN_QUOTA_REFRESH_TIME 2000
45 * Message from the transport service to the library
46 * informing about neighbors.
48 struct ConnectInfoMessage
52 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_CONNECT
54 struct GNUNET_MessageHeader header;
57 * Current quota for outbound traffic in bytes/ms.
58 * (should be equal to system default)
60 uint32_t quota_out GNUNET_PACKED;
65 struct GNUNET_TIME_RelativeNBO latency;
68 * Transport distance metric (i.e. hops for DV)
73 * Identity of the new neighbour.
75 struct GNUNET_PeerIdentity id;
81 * Message from the transport service to the library
82 * informing about disconnects.
84 struct DisconnectInfoMessage
88 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT
90 struct GNUNET_MessageHeader header;
93 * Reserved, always zero.
95 uint32_t reserved GNUNET_PACKED;
98 * Who got disconnected?
100 struct GNUNET_PeerIdentity peer;
106 * Message used to set a particular bandwidth quota. Send
107 * TO the service to set an incoming quota, send FROM the
108 * service to update an outgoing quota.
110 struct QuotaSetMessage
114 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_NEIGHBOUR_INFO
116 struct GNUNET_MessageHeader header;
119 * Quota in bytes per ms, 0 to drop everything;
120 * in network byte order.
122 uint32_t quota_in GNUNET_PACKED;
125 * About which peer are we talking here?
127 struct GNUNET_PeerIdentity peer;
133 * Message used to ask the transport service to connect
134 * to a particular peer.
136 struct TryConnectMessage
140 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_TRY_CONNECT.
142 struct GNUNET_MessageHeader header;
147 uint32_t reserved GNUNET_PACKED;
150 * About which peer are we talking here?
152 struct GNUNET_PeerIdentity peer;
157 * Message used to notify the transport API about a message
158 * received from the network. The actual message follows.
160 struct InboundMessage
164 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_RECV
166 struct GNUNET_MessageHeader header;
171 uint32_t reserved GNUNET_PACKED;
176 struct GNUNET_TIME_RelativeNBO latency;
179 * Which peer sent the message?
181 struct GNUNET_PeerIdentity peer;
192 * Message used to notify the transport API that it can
193 * send another message to the transport service.
199 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_OK
201 struct GNUNET_MessageHeader header;
204 * GNUNET_OK if the transmission succeeded,
205 * GNUNET_SYSERR if it failed (i.e. network disconnect);
206 * in either case, it is now OK for this client to
207 * send us another message for the given peer.
209 uint32_t success GNUNET_PACKED;
212 * Which peer can send more now?
214 struct GNUNET_PeerIdentity peer;
220 * Message used to notify the transport service about a message
221 * to be transmitted to another peer. The actual message follows.
223 struct OutboundMessage
227 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_SEND
229 struct GNUNET_MessageHeader header;
234 uint32_t priority GNUNET_PACKED;
237 * Which peer should receive the message?
239 struct GNUNET_PeerIdentity peer;
245 * Message from the library to the transport service
246 * asking for converting a transport address to a
247 * human-readable UTF-8 string.
249 struct AddressLookupMessage
253 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_LOOKUP
255 struct GNUNET_MessageHeader header;
258 * Should the conversion use numeric IP addresses (otherwise
259 * a reverse DNS lookup is OK -- if applicable).
261 int32_t numeric_only GNUNET_PACKED;
264 * timeout to give up.
266 struct GNUNET_TIME_AbsoluteNBO timeout;
269 * Length of the (binary) address in bytes, in big-endian.
271 uint32_t addrlen GNUNET_PACKED;
273 /* followed by 'addrlen' bytes of the actual address, then
274 followed by the 0-terminated name of the transport */
280 * Change in blacklisting (either request or notification,
281 * depending on which direction it is going).
283 struct BlacklistMessage
287 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_BLACKLIST
289 struct GNUNET_MessageHeader header;
292 * Reserved (for alignment).
294 uint32_t reserved GNUNET_PACKED;
297 * Which peer is being blacklisted (or has seen its
298 * blacklisting expire)?
300 struct GNUNET_PeerIdentity peer;
303 * Until what time is this peer blacklisted (zero for
304 * no longer blacklisted).
306 struct GNUNET_TIME_AbsoluteNBO until;
311 /* end of transport.h */