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)
37 #define DEBUG_ATS GNUNET_YES
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;
52 struct NeighbourList * n;
57 #define DEBUG_TRANSPORT GNUNET_NO
58 #define DEBUG_TRANSPORT_TIMEOUT GNUNET_NO
59 #define DEBUG_TRANSPORT_DISCONNECT GNUNET_NO
62 * For how long do we allow unused bandwidth
63 * from the past to carry over into the future? (in seconds)
65 #define MAX_BANDWIDTH_CARRY_S 5
68 * How often do we (at most) do a full quota
69 * recalculation? (in ms)
71 #define MIN_QUOTA_REFRESH_TIME 2000
74 * Message from the transport service to the library
75 * asking to check if both processes agree about this
82 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_START
84 struct GNUNET_MessageHeader header;
87 * Should the 'self' field be checked?
92 * Identity we think we have. If it does not match, the
93 * receiver should print out an error message and disconnect.
95 struct GNUNET_PeerIdentity self;
101 * Message from the transport service to the library
102 * informing about neighbors.
104 struct ConnectInfoMessage
108 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_CONNECT
110 struct GNUNET_MessageHeader header;
113 * Number of ATS key-value pairs that follow this struct
114 * (excluding the 0-terminator).
116 uint32_t ats_count GNUNET_PACKED;
119 * Identity of the new neighbour.
121 struct GNUNET_PeerIdentity id;
124 * First of the ATS information blocks (we must have at least
125 * one due to the 0-termination requirement).
127 struct GNUNET_TRANSPORT_ATS_Information ats;
132 * Message from the transport service to the library
133 * informing about disconnects.
135 struct DisconnectInfoMessage
139 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT
141 struct GNUNET_MessageHeader header;
144 * Reserved, always zero.
146 uint32_t reserved GNUNET_PACKED;
149 * Who got disconnected?
151 struct GNUNET_PeerIdentity peer;
156 * Message type for sending a request connect message
157 * to the transport service. Must be done before transport
158 * api will allow messages to be queued/sent to transport
159 * service for transmission to a peer.
161 struct TransportRequestConnectMessage
166 struct GNUNET_MessageHeader header;
169 * Identity of the peer we would like to connect to.
171 struct GNUNET_PeerIdentity peer;
175 * Message used to set a particular bandwidth quota. Send TO the
176 * service to set an incoming quota, send FROM the service to update
179 struct QuotaSetMessage
183 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_NEIGHBOUR_INFO
185 struct GNUNET_MessageHeader header;
190 struct GNUNET_BANDWIDTH_Value32NBO quota;
193 * About which peer are we talking here?
195 struct GNUNET_PeerIdentity peer;
201 * Message used to notify the transport API about a message
202 * received from the network. The actual message follows.
204 struct InboundMessage
208 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_RECV
210 struct GNUNET_MessageHeader header;
215 uint32_t reserved GNUNET_PACKED;
218 * Number of ATS key-value pairs that follow this struct
219 * (excluding the 0-terminator).
221 uint32_t ats_count GNUNET_PACKED;
224 * Which peer sent the message?
226 struct GNUNET_PeerIdentity peer;
229 * First of the ATS information blocks (we must have at least
230 * one due to the 0-termination requirement).
232 struct GNUNET_TRANSPORT_ATS_Information ats;
237 * Message used to notify the transport API that it can
238 * send another message to the transport service.
244 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_OK
246 struct GNUNET_MessageHeader header;
249 * GNUNET_OK if the transmission succeeded,
250 * GNUNET_SYSERR if it failed (i.e. network disconnect);
251 * in either case, it is now OK for this client to
252 * send us another message for the given peer.
254 uint32_t success GNUNET_PACKED;
259 struct GNUNET_TIME_RelativeNBO latency;
262 * Which peer can send more now?
264 struct GNUNET_PeerIdentity peer;
270 * Message used to notify the transport service about a message
271 * to be transmitted to another peer. The actual message follows.
273 struct OutboundMessage
277 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_SEND
279 struct GNUNET_MessageHeader header;
284 uint32_t priority GNUNET_PACKED;
289 struct GNUNET_TIME_RelativeNBO timeout;
292 * Which peer should receive the message?
294 struct GNUNET_PeerIdentity peer;
300 * Message from the library to the transport service
301 * asking for converting a transport address to a
302 * human-readable UTF-8 string.
304 struct AddressLookupMessage
308 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_LOOKUP
310 struct GNUNET_MessageHeader header;
313 * Should the conversion use numeric IP addresses (otherwise
314 * a reverse DNS lookup is OK -- if applicable).
316 int32_t numeric_only GNUNET_PACKED;
319 * timeout to give up.
321 struct GNUNET_TIME_AbsoluteNBO timeout;
324 * Length of the (binary) address in bytes, in big-endian.
326 uint32_t addrlen GNUNET_PACKED;
328 /* followed by 'addrlen' bytes of the actual address, then
329 followed by the 0-terminated name of the transport */
335 * Change in blacklisting (either request or notification,
336 * depending on which direction it is going).
338 struct BlacklistMessage
342 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_BLACKLIST_QUERY or
343 * GNUNET_MESSAGE_TYPE_TRANSPORT_BLACKLIST_REPLY.
345 struct GNUNET_MessageHeader header;
348 * 0 for the query, GNUNET_OK (allowed) or GNUNET_SYSERR (disallowed)
351 uint32_t is_allowed GNUNET_PACKED;
354 * Which peer is being blacklisted or queried?
356 struct GNUNET_PeerIdentity peer;
361 /* end of transport.h */