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
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 * @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)
36 #define ATS_MAX_EXEC_DURATION GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_MILLISECONDS, 500)
40 struct GNUNET_CONTAINER_MultiHashMap * peers;
42 * Time of last execution
44 struct GNUNET_TIME_Absolute last;
46 * Minimum intervall between two executions
48 struct GNUNET_TIME_Relative min_delta;
50 * Regular intervall when execution is triggered
52 struct GNUNET_TIME_Relative exec_intervall;
54 * Maximum execution time per calculation
56 struct GNUNET_TIME_Relative max_exec_duration;
58 GNUNET_SCHEDULER_TaskIdentifier ats_task;
63 struct GNUNET_PeerIdentity peer;
64 struct NeighbourList * n;
69 #define DEBUG_TRANSPORT GNUNET_NO
70 #define DEBUG_TRANSPORT_TIMEOUT GNUNET_NO
71 #define DEBUG_TRANSPORT_DISCONNECT GNUNET_NO
74 * For how long do we allow unused bandwidth
75 * from the past to carry over into the future? (in seconds)
77 #define MAX_BANDWIDTH_CARRY_S 5
80 * How often do we (at most) do a full quota
81 * recalculation? (in ms)
83 #define MIN_QUOTA_REFRESH_TIME 2000
86 * Message from the transport service to the library
87 * asking to check if both processes agree about this
94 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_START
96 struct GNUNET_MessageHeader header;
99 * Should the 'self' field be checked?
104 * Identity we think we have. If it does not match, the
105 * receiver should print out an error message and disconnect.
107 struct GNUNET_PeerIdentity self;
113 * Message from the transport service to the library
114 * informing about neighbors.
116 struct ConnectInfoMessage
120 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_CONNECT
122 struct GNUNET_MessageHeader header;
125 * Number of ATS key-value pairs that follow this struct
126 * (excluding the 0-terminator).
128 uint32_t ats_count GNUNET_PACKED;
131 * Identity of the new neighbour.
133 struct GNUNET_PeerIdentity id;
136 * First of the ATS information blocks (we must have at least
137 * one due to the 0-termination requirement).
139 struct GNUNET_TRANSPORT_ATS_Information ats;
144 * Message from the transport service to the library
145 * informing about disconnects.
147 struct DisconnectInfoMessage
151 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT
153 struct GNUNET_MessageHeader header;
156 * Reserved, always zero.
158 uint32_t reserved GNUNET_PACKED;
161 * Who got disconnected?
163 struct GNUNET_PeerIdentity peer;
168 * Message type for sending a request connect message
169 * to the transport service. Must be done before transport
170 * api will allow messages to be queued/sent to transport
171 * service for transmission to a peer.
173 struct TransportRequestConnectMessage
178 struct GNUNET_MessageHeader header;
181 * Identity of the peer we would like to connect to.
183 struct GNUNET_PeerIdentity peer;
187 * Message used to set a particular bandwidth quota. Send TO the
188 * service to set an incoming quota, send FROM the service to update
191 struct QuotaSetMessage
195 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_NEIGHBOUR_INFO
197 struct GNUNET_MessageHeader header;
202 struct GNUNET_BANDWIDTH_Value32NBO quota;
205 * About which peer are we talking here?
207 struct GNUNET_PeerIdentity peer;
213 * Message used to notify the transport API about a message
214 * received from the network. The actual message follows.
216 struct InboundMessage
220 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_RECV
222 struct GNUNET_MessageHeader header;
227 uint32_t reserved GNUNET_PACKED;
230 * Number of ATS key-value pairs that follow this struct
231 * (excluding the 0-terminator).
233 uint32_t ats_count GNUNET_PACKED;
236 * Which peer sent the message?
238 struct GNUNET_PeerIdentity peer;
241 * First of the ATS information blocks (we must have at least
242 * one due to the 0-termination requirement).
244 struct GNUNET_TRANSPORT_ATS_Information ats;
249 * Message used to notify the transport API that it can
250 * send another message to the transport service.
256 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_OK
258 struct GNUNET_MessageHeader header;
261 * GNUNET_OK if the transmission succeeded,
262 * GNUNET_SYSERR if it failed (i.e. network disconnect);
263 * in either case, it is now OK for this client to
264 * send us another message for the given peer.
266 uint32_t success GNUNET_PACKED;
271 struct GNUNET_TIME_RelativeNBO latency;
274 * Which peer can send more now?
276 struct GNUNET_PeerIdentity peer;
282 * Message used to notify the transport service about a message
283 * to be transmitted to another peer. The actual message follows.
285 struct OutboundMessage
289 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_SEND
291 struct GNUNET_MessageHeader header;
296 uint32_t priority GNUNET_PACKED;
301 struct GNUNET_TIME_RelativeNBO timeout;
304 * Which peer should receive the message?
306 struct GNUNET_PeerIdentity peer;
312 * Message from the library to the transport service
313 * asking for converting a transport address to a
314 * human-readable UTF-8 string.
316 struct AddressLookupMessage
320 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_LOOKUP
322 struct GNUNET_MessageHeader header;
325 * Should the conversion use numeric IP addresses (otherwise
326 * a reverse DNS lookup is OK -- if applicable).
328 int32_t numeric_only GNUNET_PACKED;
331 * timeout to give up.
333 struct GNUNET_TIME_AbsoluteNBO timeout;
336 * Length of the (binary) address in bytes, in big-endian.
338 uint32_t addrlen GNUNET_PACKED;
340 /* followed by 'addrlen' bytes of the actual address, then
341 followed by the 0-terminated name of the transport */
347 * Change in blacklisting (either request or notification,
348 * depending on which direction it is going).
350 struct BlacklistMessage
354 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_BLACKLIST_QUERY or
355 * GNUNET_MESSAGE_TYPE_TRANSPORT_BLACKLIST_REPLY.
357 struct GNUNET_MessageHeader header;
360 * 0 for the query, GNUNET_OK (allowed) or GNUNET_SYSERR (disallowed)
363 uint32_t is_allowed GNUNET_PACKED;
366 * Which peer is being blacklisted or queried?
368 struct GNUNET_PeerIdentity peer;
373 /* end of transport.h */