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_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;
43 struct GNUNET_TIME_Relative min_delta;
44 struct GNUNET_TIME_Relative reg_delta;
46 GNUNET_SCHEDULER_TaskIdentifier ats_task;
51 struct GNUNET_PeerIdentity peer;
54 #define DEBUG_TRANSPORT GNUNET_NO
55 #define DEBUG_TRANSPORT_TIMEOUT GNUNET_NO
56 #define DEBUG_TRANSPORT_DISCONNECT GNUNET_NO
59 * For how long do we allow unused bandwidth
60 * from the past to carry over into the future? (in seconds)
62 #define MAX_BANDWIDTH_CARRY_S 5
65 * How often do we (at most) do a full quota
66 * recalculation? (in ms)
68 #define MIN_QUOTA_REFRESH_TIME 2000
71 * Message from the transport service to the library
72 * asking to check if both processes agree about this
79 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_START
81 struct GNUNET_MessageHeader header;
84 * Should the 'self' field be checked?
89 * Identity we think we have. If it does not match, the
90 * receiver should print out an error message and disconnect.
92 struct GNUNET_PeerIdentity self;
98 * Message from the transport service to the library
99 * informing about neighbors.
101 struct ConnectInfoMessage
105 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_CONNECT
107 struct GNUNET_MessageHeader header;
110 * Number of ATS key-value pairs that follow this struct
111 * (excluding the 0-terminator).
113 uint32_t ats_count GNUNET_PACKED;
116 * Identity of the new neighbour.
118 struct GNUNET_PeerIdentity id;
121 * First of the ATS information blocks (we must have at least
122 * one due to the 0-termination requirement).
124 struct GNUNET_TRANSPORT_ATS_Information ats;
129 * Message from the transport service to the library
130 * informing about disconnects.
132 struct DisconnectInfoMessage
136 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT
138 struct GNUNET_MessageHeader header;
141 * Reserved, always zero.
143 uint32_t reserved GNUNET_PACKED;
146 * Who got disconnected?
148 struct GNUNET_PeerIdentity peer;
153 * Message type for sending a request connect message
154 * to the transport service. Must be done before transport
155 * api will allow messages to be queued/sent to transport
156 * service for transmission to a peer.
158 struct TransportRequestConnectMessage
163 struct GNUNET_MessageHeader header;
166 * Identity of the peer we would like to connect to.
168 struct GNUNET_PeerIdentity peer;
172 * Message used to set a particular bandwidth quota. Send TO the
173 * service to set an incoming quota, send FROM the service to update
176 struct QuotaSetMessage
180 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_NEIGHBOUR_INFO
182 struct GNUNET_MessageHeader header;
187 struct GNUNET_BANDWIDTH_Value32NBO quota;
190 * About which peer are we talking here?
192 struct GNUNET_PeerIdentity peer;
198 * Message used to notify the transport API about a message
199 * received from the network. The actual message follows.
201 struct InboundMessage
205 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_RECV
207 struct GNUNET_MessageHeader header;
212 uint32_t reserved GNUNET_PACKED;
215 * Number of ATS key-value pairs that follow this struct
216 * (excluding the 0-terminator).
218 uint32_t ats_count GNUNET_PACKED;
221 * Which peer sent the message?
223 struct GNUNET_PeerIdentity peer;
226 * First of the ATS information blocks (we must have at least
227 * one due to the 0-termination requirement).
229 struct GNUNET_TRANSPORT_ATS_Information ats;
234 * Message used to notify the transport API that it can
235 * send another message to the transport service.
241 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_OK
243 struct GNUNET_MessageHeader header;
246 * GNUNET_OK if the transmission succeeded,
247 * GNUNET_SYSERR if it failed (i.e. network disconnect);
248 * in either case, it is now OK for this client to
249 * send us another message for the given peer.
251 uint32_t success GNUNET_PACKED;
256 struct GNUNET_TIME_RelativeNBO latency;
259 * Which peer can send more now?
261 struct GNUNET_PeerIdentity peer;
267 * Message used to notify the transport service about a message
268 * to be transmitted to another peer. The actual message follows.
270 struct OutboundMessage
274 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_SEND
276 struct GNUNET_MessageHeader header;
281 uint32_t priority GNUNET_PACKED;
286 struct GNUNET_TIME_RelativeNBO timeout;
289 * Which peer should receive the message?
291 struct GNUNET_PeerIdentity peer;
297 * Message from the library to the transport service
298 * asking for converting a transport address to a
299 * human-readable UTF-8 string.
301 struct AddressLookupMessage
305 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_LOOKUP
307 struct GNUNET_MessageHeader header;
310 * Should the conversion use numeric IP addresses (otherwise
311 * a reverse DNS lookup is OK -- if applicable).
313 int32_t numeric_only GNUNET_PACKED;
316 * timeout to give up.
318 struct GNUNET_TIME_AbsoluteNBO timeout;
321 * Length of the (binary) address in bytes, in big-endian.
323 uint32_t addrlen GNUNET_PACKED;
325 /* followed by 'addrlen' bytes of the actual address, then
326 followed by the 0-terminated name of the transport */
332 * Change in blacklisting (either request or notification,
333 * depending on which direction it is going).
335 struct BlacklistMessage
339 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_BLACKLIST_QUERY or
340 * GNUNET_MESSAGE_TYPE_TRANSPORT_BLACKLIST_REPLY.
342 struct GNUNET_MessageHeader header;
345 * 0 for the query, GNUNET_OK (allowed) or GNUNET_SYSERR (disallowed)
348 uint32_t is_allowed GNUNET_PACKED;
351 * Which peer is being blacklisted or queried?
353 struct GNUNET_PeerIdentity peer;
358 /* end of transport.h */