2 This file is part of GNUnet.
3 (C) 2009 Christian Grothoff (and other contributing authors)
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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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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
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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"
32 #include "gnunet_constants.h"
34 #define DEBUG_TRANSPORT GNUNET_EXTRA_LOGGING
36 #define DEBUG_TRANSPORT_TIMEOUT GNUNET_EXTRA_LOGGING
38 #define DEBUG_TRANSPORT_DISCONNECT GNUNET_EXTRA_LOGGING
40 #define DEBUG_TRANSPORT_API GNUNET_EXTRA_LOGGING
43 * For how long do we allow unused bandwidth
44 * from the past to carry over into the future? (in seconds)
46 #define MAX_BANDWIDTH_CARRY_S GNUNET_CONSTANTS_MAX_BANDWIDTH_CARRY_S
49 * How often do we (at most) do a full quota
50 * recalculation? (in ms)
52 #define MIN_QUOTA_REFRESH_TIME 2000
55 * Maximum frequency for re-evaluating latencies for all transport addresses.
57 #define LATENCY_EVALUATION_MAX_DELAY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 1)
60 * Maximum frequency for re-evaluating latencies for connected addresses.
62 #define CONNECTED_LATENCY_EVALUATION_MAX_DELAY GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MINUTES, 1)
65 * Message from the transport service to the library
66 * asking to check if both processes agree about this
73 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_START
75 struct GNUNET_MessageHeader header;
78 * Should the 'self' field be checked?
83 * Identity we think we have. If it does not match, the
84 * receiver should print out an error message and disconnect.
86 struct GNUNET_PeerIdentity self;
92 * Message from the transport service to the library
93 * informing about neighbors.
95 struct ConnectInfoMessage
99 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_CONNECT
101 struct GNUNET_MessageHeader header;
104 * Number of ATS key-value pairs that follow this struct
105 * (excluding the 0-terminator).
107 uint32_t ats_count GNUNET_PACKED;
110 * Identity of the new neighbour.
112 struct GNUNET_PeerIdentity id;
115 * First of the ATS information blocks (we must have at least
116 * one due to the 0-termination requirement).
118 struct GNUNET_ATS_Information ats;
123 * Message from the transport service to the library
124 * informing about disconnects.
126 struct DisconnectInfoMessage
130 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT
132 struct GNUNET_MessageHeader header;
135 * Reserved, always zero.
137 uint32_t reserved GNUNET_PACKED;
140 * Who got disconnected?
142 struct GNUNET_PeerIdentity peer;
147 * Message type for sending a request connect message
148 * to the transport service. Must be done before transport
149 * api will allow messages to be queued/sent to transport
150 * service for transmission to a peer.
152 struct TransportRequestConnectMessage
157 struct GNUNET_MessageHeader header;
165 * Identity of the peer we would like to connect to.
167 struct GNUNET_PeerIdentity peer;
171 * Message used to set a particular bandwidth quota. Sent TO the
172 * service to set an incoming quota, sent FROM the service to update
175 struct QuotaSetMessage
179 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_SET_QUOTA
181 struct GNUNET_MessageHeader header;
186 struct GNUNET_BANDWIDTH_Value32NBO quota;
189 * About which peer are we talking here?
191 struct GNUNET_PeerIdentity peer;
197 * Message used to notify the transport API about a message
198 * received from the network. The actual message follows.
200 struct InboundMessage
204 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_RECV
206 struct GNUNET_MessageHeader header;
209 * Number of ATS key-value pairs that follow this struct
210 * (excluding the 0-terminator).
212 uint32_t ats_count GNUNET_PACKED;
215 * Which peer sent the message?
217 struct GNUNET_PeerIdentity peer;
220 * First of the ATS information blocks (we must have at least
221 * one due to the 0-termination requirement).
223 struct GNUNET_ATS_Information ats;
228 * Message used to notify the transport API that it can
229 * send another message to the transport service.
235 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_OK
237 struct GNUNET_MessageHeader header;
240 * GNUNET_OK if the transmission succeeded,
241 * GNUNET_SYSERR if it failed (i.e. network disconnect);
242 * in either case, it is now OK for this client to
243 * send us another message for the given peer.
245 uint32_t success GNUNET_PACKED;
250 struct GNUNET_TIME_RelativeNBO latency;
253 * Which peer can send more now?
255 struct GNUNET_PeerIdentity peer;
261 * Message used to notify the transport service about a message
262 * to be transmitted to another peer. The actual message follows.
264 struct OutboundMessage
268 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_SEND
270 struct GNUNET_MessageHeader header;
275 uint32_t priority GNUNET_PACKED;
280 struct GNUNET_TIME_RelativeNBO timeout;
283 * Which peer should receive the message?
285 struct GNUNET_PeerIdentity peer;
291 * Message from the library to the transport service
292 * asking for converting a transport address to a
293 * human-readable UTF-8 string.
295 struct AddressLookupMessage
299 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_LOOKUP
301 struct GNUNET_MessageHeader header;
304 * Should the conversion use numeric IP addresses (otherwise
305 * a reverse DNS lookup is OK -- if applicable).
307 int32_t numeric_only GNUNET_PACKED;
310 * timeout to give up.
312 struct GNUNET_TIME_RelativeNBO timeout;
315 * Length of the (binary) address in bytes, in big-endian.
317 uint32_t addrlen GNUNET_PACKED;
319 /* followed by 'addrlen' bytes of the actual address, then
320 * followed by the 0-terminated name of the transport */
325 * Message from the library to the transport service
326 * asking for human readable addresses known for a peer.
328 struct PeerAddressLookupMessage
331 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_PEER_ADDRESS_LOOKUP
333 struct GNUNET_MessageHeader header;
341 * timeout to give up. FIXME: remove in the future.
343 struct GNUNET_TIME_RelativeNBO timeout;
346 * The identity of the peer to look up.
348 struct GNUNET_PeerIdentity peer;
353 * Message from the library to the transport service
354 * asking for binary addresses known for a peer.
356 struct AddressIterateMessage
359 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_ITERATE
361 struct GNUNET_MessageHeader header;
369 * timeout to give up. FIXME: remove in the future
371 struct GNUNET_TIME_AbsoluteNBO timeout;
375 * Message from the library to the transport service
376 * asking for human readable addresses known for a peer.
378 struct AddressIterateResponseMessage
381 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_REPLY
383 struct GNUNET_MessageHeader header;
393 struct GNUNET_PeerIdentity peer;
398 uint32_t addrlen GNUNET_PACKED;
401 * length of the plugin name
403 uint32_t pluginlen GNUNET_PACKED;
408 * Change in blacklisting (either request or notification,
409 * depending on which direction it is going).
411 struct BlacklistMessage
415 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_BLACKLIST_QUERY or
416 * GNUNET_MESSAGE_TYPE_TRANSPORT_BLACKLIST_REPLY.
418 struct GNUNET_MessageHeader header;
421 * 0 for the query, GNUNET_OK (allowed) or GNUNET_SYSERR (disallowed)
424 uint32_t is_allowed GNUNET_PACKED;
427 * Which peer is being blacklisted or queried?
429 struct GNUNET_PeerIdentity peer;
434 /* end of transport.h */