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 3, 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 /* Minimum time between to calculations*/
34 #define ATS_MIN_INTERVAL GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS,250)
35 #define ATS_EXEC_INTERVAL GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS,1)
37 #define DEBUG_ATS GNUNET_NO
41 struct GNUNET_CONTAINER_MultiHashMap * peers;
42 struct GNUNET_TIME_Absolute last;
44 * Minimum intervall between two executions
46 struct GNUNET_TIME_Relative min_delta;
48 * Regular intervall when execution is triggered
50 struct GNUNET_TIME_Relative exec_intervall;
52 * Maximum execution time per calculation
54 struct GNUNET_TIME_Relative max_exec_duration;
56 GNUNET_SCHEDULER_TaskIdentifier ats_task;
61 struct GNUNET_PeerIdentity peer;
62 struct NeighbourList * n;
67 #define DEBUG_TRANSPORT GNUNET_NO
68 #define DEBUG_TRANSPORT_TIMEOUT GNUNET_NO
69 #define DEBUG_TRANSPORT_DISCONNECT GNUNET_NO
72 * For how long do we allow unused bandwidth
73 * from the past to carry over into the future? (in seconds)
75 #define MAX_BANDWIDTH_CARRY_S 5
78 * How often do we (at most) do a full quota
79 * recalculation? (in ms)
81 #define MIN_QUOTA_REFRESH_TIME 2000
84 * Message from the transport service to the library
85 * asking to check if both processes agree about this
92 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_START
94 struct GNUNET_MessageHeader header;
97 * Should the 'self' field be checked?
102 * Identity we think we have. If it does not match, the
103 * receiver should print out an error message and disconnect.
105 struct GNUNET_PeerIdentity self;
111 * Message from the transport service to the library
112 * informing about neighbors.
114 struct ConnectInfoMessage
118 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_CONNECT
120 struct GNUNET_MessageHeader header;
123 * Number of ATS key-value pairs that follow this struct
124 * (excluding the 0-terminator).
126 uint32_t ats_count GNUNET_PACKED;
129 * Identity of the new neighbour.
131 struct GNUNET_PeerIdentity id;
134 * First of the ATS information blocks (we must have at least
135 * one due to the 0-termination requirement).
137 struct GNUNET_TRANSPORT_ATS_Information ats;
142 * Message from the transport service to the library
143 * informing about disconnects.
145 struct DisconnectInfoMessage
149 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT
151 struct GNUNET_MessageHeader header;
154 * Reserved, always zero.
156 uint32_t reserved GNUNET_PACKED;
159 * Who got disconnected?
161 struct GNUNET_PeerIdentity peer;
166 * Message type for sending a request connect message
167 * to the transport service. Must be done before transport
168 * api will allow messages to be queued/sent to transport
169 * service for transmission to a peer.
171 struct TransportRequestConnectMessage
176 struct GNUNET_MessageHeader header;
179 * Identity of the peer we would like to connect to.
181 struct GNUNET_PeerIdentity peer;
185 * Message used to set a particular bandwidth quota. Send TO the
186 * service to set an incoming quota, send FROM the service to update
189 struct QuotaSetMessage
193 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_NEIGHBOUR_INFO
195 struct GNUNET_MessageHeader header;
200 struct GNUNET_BANDWIDTH_Value32NBO quota;
203 * About which peer are we talking here?
205 struct GNUNET_PeerIdentity peer;
211 * Message used to notify the transport API about a message
212 * received from the network. The actual message follows.
214 struct InboundMessage
218 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_RECV
220 struct GNUNET_MessageHeader header;
225 uint32_t reserved GNUNET_PACKED;
228 * Number of ATS key-value pairs that follow this struct
229 * (excluding the 0-terminator).
231 uint32_t ats_count GNUNET_PACKED;
234 * Which peer sent the message?
236 struct GNUNET_PeerIdentity peer;
239 * First of the ATS information blocks (we must have at least
240 * one due to the 0-termination requirement).
242 struct GNUNET_TRANSPORT_ATS_Information ats;
247 * Message used to notify the transport API that it can
248 * send another message to the transport service.
254 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_OK
256 struct GNUNET_MessageHeader header;
259 * GNUNET_OK if the transmission succeeded,
260 * GNUNET_SYSERR if it failed (i.e. network disconnect);
261 * in either case, it is now OK for this client to
262 * send us another message for the given peer.
264 uint32_t success GNUNET_PACKED;
269 struct GNUNET_TIME_RelativeNBO latency;
272 * Which peer can send more now?
274 struct GNUNET_PeerIdentity peer;
280 * Message used to notify the transport service about a message
281 * to be transmitted to another peer. The actual message follows.
283 struct OutboundMessage
287 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_SEND
289 struct GNUNET_MessageHeader header;
294 uint32_t priority GNUNET_PACKED;
299 struct GNUNET_TIME_RelativeNBO timeout;
302 * Which peer should receive the message?
304 struct GNUNET_PeerIdentity peer;
310 * Message from the library to the transport service
311 * asking for converting a transport address to a
312 * human-readable UTF-8 string.
314 struct AddressLookupMessage
318 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_LOOKUP
320 struct GNUNET_MessageHeader header;
323 * Should the conversion use numeric IP addresses (otherwise
324 * a reverse DNS lookup is OK -- if applicable).
326 int32_t numeric_only GNUNET_PACKED;
329 * timeout to give up.
331 struct GNUNET_TIME_AbsoluteNBO timeout;
334 * Length of the (binary) address in bytes, in big-endian.
336 uint32_t addrlen GNUNET_PACKED;
338 /* followed by 'addrlen' bytes of the actual address, then
339 followed by the 0-terminated name of the transport */
345 * Change in blacklisting (either request or notification,
346 * depending on which direction it is going).
348 struct BlacklistMessage
352 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_BLACKLIST_QUERY or
353 * GNUNET_MESSAGE_TYPE_TRANSPORT_BLACKLIST_REPLY.
355 struct GNUNET_MessageHeader header;
358 * 0 for the query, GNUNET_OK (allowed) or GNUNET_SYSERR (disallowed)
361 uint32_t is_allowed GNUNET_PACKED;
364 * Which peer is being blacklisted or queried?
366 struct GNUNET_PeerIdentity peer;
371 /* end of transport.h */