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.
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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.
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_SECONDS, 20)
35 #define ATS_EXEC_INTERVAL GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 60)
36 #define ATS_MAX_EXEC_DURATION GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 500)
37 #define ATS_MAX_ITERATIONS INT_MAX
41 struct GNUNET_CONTAINER_MultiHashMap * peers;
43 * Time of last execution
45 struct GNUNET_TIME_Absolute last;
47 * Minimum intervall between two executions
49 struct GNUNET_TIME_Relative min_delta;
51 * Regular intervall when execution is triggered
53 struct GNUNET_TIME_Relative exec_intervall;
55 * Maximum execution time per calculation
57 struct GNUNET_TIME_Relative max_exec_duration;
59 * Maximum number of LP iterations per calculation
63 GNUNET_SCHEDULER_TaskIdentifier ats_task;
68 struct GNUNET_PeerIdentity peer;
69 struct NeighbourList * n;
74 #define DEBUG_TRANSPORT GNUNET_NO
75 #define DEBUG_TRANSPORT_TIMEOUT GNUNET_NO
76 #define DEBUG_TRANSPORT_DISCONNECT GNUNET_NO
79 * For how long do we allow unused bandwidth
80 * from the past to carry over into the future? (in seconds)
82 #define MAX_BANDWIDTH_CARRY_S 5
85 * How often do we (at most) do a full quota
86 * recalculation? (in ms)
88 #define MIN_QUOTA_REFRESH_TIME 2000
91 * Message from the transport service to the library
92 * asking to check if both processes agree about this
99 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_START
101 struct GNUNET_MessageHeader header;
104 * Should the 'self' field be checked?
109 * Identity we think we have. If it does not match, the
110 * receiver should print out an error message and disconnect.
112 struct GNUNET_PeerIdentity self;
118 * Message from the transport service to the library
119 * informing about neighbors.
121 struct ConnectInfoMessage
125 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_CONNECT
127 struct GNUNET_MessageHeader header;
130 * Number of ATS key-value pairs that follow this struct
131 * (excluding the 0-terminator).
133 uint32_t ats_count GNUNET_PACKED;
136 * Identity of the new neighbour.
138 struct GNUNET_PeerIdentity id;
141 * First of the ATS information blocks (we must have at least
142 * one due to the 0-termination requirement).
144 struct GNUNET_TRANSPORT_ATS_Information ats;
149 * Message from the transport service to the library
150 * informing about disconnects.
152 struct DisconnectInfoMessage
156 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT
158 struct GNUNET_MessageHeader header;
161 * Reserved, always zero.
163 uint32_t reserved GNUNET_PACKED;
166 * Who got disconnected?
168 struct GNUNET_PeerIdentity peer;
173 * Message type for sending a request connect message
174 * to the transport service. Must be done before transport
175 * api will allow messages to be queued/sent to transport
176 * service for transmission to a peer.
178 struct TransportRequestConnectMessage
183 struct GNUNET_MessageHeader header;
186 * Identity of the peer we would like to connect to.
188 struct GNUNET_PeerIdentity peer;
192 * Message used to set a particular bandwidth quota. Send TO the
193 * service to set an incoming quota, send FROM the service to update
196 struct QuotaSetMessage
200 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_NEIGHBOUR_INFO
202 struct GNUNET_MessageHeader header;
207 struct GNUNET_BANDWIDTH_Value32NBO quota;
210 * About which peer are we talking here?
212 struct GNUNET_PeerIdentity peer;
218 * Message used to notify the transport API about a message
219 * received from the network. The actual message follows.
221 struct InboundMessage
225 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_RECV
227 struct GNUNET_MessageHeader header;
232 uint32_t reserved GNUNET_PACKED;
235 * Number of ATS key-value pairs that follow this struct
236 * (excluding the 0-terminator).
238 uint32_t ats_count GNUNET_PACKED;
241 * Which peer sent the message?
243 struct GNUNET_PeerIdentity peer;
246 * First of the ATS information blocks (we must have at least
247 * one due to the 0-termination requirement).
249 struct GNUNET_TRANSPORT_ATS_Information ats;
254 * Message used to notify the transport API that it can
255 * send another message to the transport service.
261 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_OK
263 struct GNUNET_MessageHeader header;
266 * GNUNET_OK if the transmission succeeded,
267 * GNUNET_SYSERR if it failed (i.e. network disconnect);
268 * in either case, it is now OK for this client to
269 * send us another message for the given peer.
271 uint32_t success GNUNET_PACKED;
276 struct GNUNET_TIME_RelativeNBO latency;
279 * Which peer can send more now?
281 struct GNUNET_PeerIdentity peer;
287 * Message used to notify the transport service about a message
288 * to be transmitted to another peer. The actual message follows.
290 struct OutboundMessage
294 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_SEND
296 struct GNUNET_MessageHeader header;
301 uint32_t priority GNUNET_PACKED;
306 struct GNUNET_TIME_RelativeNBO timeout;
309 * Which peer should receive the message?
311 struct GNUNET_PeerIdentity peer;
317 * Message from the library to the transport service
318 * asking for converting a transport address to a
319 * human-readable UTF-8 string.
321 struct AddressLookupMessage
325 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_LOOKUP
327 struct GNUNET_MessageHeader header;
330 * Should the conversion use numeric IP addresses (otherwise
331 * a reverse DNS lookup is OK -- if applicable).
333 int32_t numeric_only GNUNET_PACKED;
336 * timeout to give up.
338 struct GNUNET_TIME_AbsoluteNBO timeout;
341 * Length of the (binary) address in bytes, in big-endian.
343 uint32_t addrlen GNUNET_PACKED;
345 /* followed by 'addrlen' bytes of the actual address, then
346 followed by the 0-terminated name of the transport */
352 * Change in blacklisting (either request or notification,
353 * depending on which direction it is going).
355 struct BlacklistMessage
359 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_BLACKLIST_QUERY or
360 * GNUNET_MESSAGE_TYPE_TRANSPORT_BLACKLIST_REPLY.
362 struct GNUNET_MessageHeader header;
365 * 0 for the query, GNUNET_OK (allowed) or GNUNET_SYSERR (disallowed)
368 uint32_t is_allowed GNUNET_PACKED;
371 * Which peer is being blacklisted or queried?
373 struct GNUNET_PeerIdentity peer;
378 /* end of transport.h */