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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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.
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17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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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"
33 #define DEBUG_TRANSPORT GNUNET_NO
34 #define DEBUG_TRANSPORT_TIMEOUT GNUNET_NO
35 #define DEBUG_TRANSPORT_DISCONNECT GNUNET_NO
38 * For how long do we allow unused bandwidth
39 * from the past to carry over into the future? (in seconds)
41 #define MAX_BANDWIDTH_CARRY_S 5
44 * How often do we (at most) do a full quota
45 * recalculation? (in ms)
47 #define MIN_QUOTA_REFRESH_TIME 2000
50 * Message from the transport service to the library
51 * asking to check if both processes agree about this
58 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_START
60 struct GNUNET_MessageHeader header;
63 * Should the 'self' field be checked?
68 * Identity we think we have. If it does not match, the
69 * receiver should print out an error message and disconnect.
71 struct GNUNET_PeerIdentity self;
77 * Message from the transport service to the library
78 * informing about neighbors.
80 struct ConnectInfoMessage
84 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_CONNECT
86 struct GNUNET_MessageHeader header;
89 * Number of ATS key-value pairs that follow this struct
90 * (excluding the 0-terminator).
92 uint32_t ats_count GNUNET_PACKED;
95 * Transport distance metric (i.e. hops for DV)
102 struct GNUNET_TIME_RelativeNBO latency;
105 * Identity of the new neighbour.
107 struct GNUNET_PeerIdentity id;
110 * First of the ATS information blocks (we must have at least
111 * one due to the 0-termination requirement).
113 struct GNUNET_TRANSPORT_ATS_Information ats;
118 * Message from the transport service to the library
119 * informing about disconnects.
121 struct DisconnectInfoMessage
125 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_DISCONNECT
127 struct GNUNET_MessageHeader header;
130 * Reserved, always zero.
132 uint32_t reserved GNUNET_PACKED;
135 * Who got disconnected?
137 struct GNUNET_PeerIdentity peer;
142 * Message type for sending a request connect message
143 * to the transport service. Must be done before transport
144 * api will allow messages to be queued/sent to transport
145 * service for transmission to a peer.
147 struct TransportRequestConnectMessage
152 struct GNUNET_MessageHeader header;
155 * Identity of the peer we would like to connect to.
157 struct GNUNET_PeerIdentity peer;
161 * Message used to set a particular bandwidth quota. Send TO the
162 * service to set an incoming quota, send FROM the service to update
165 struct QuotaSetMessage
169 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_NEIGHBOUR_INFO
171 struct GNUNET_MessageHeader header;
176 struct GNUNET_BANDWIDTH_Value32NBO quota;
179 * About which peer are we talking here?
181 struct GNUNET_PeerIdentity peer;
187 * Message used to notify the transport API about a message
188 * received from the network. The actual message follows.
190 struct InboundMessage
194 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_RECV
196 struct GNUNET_MessageHeader header;
201 uint32_t reserved GNUNET_PACKED;
204 * Number of ATS key-value pairs that follow this struct
205 * (excluding the 0-terminator).
207 uint32_t ats_count GNUNET_PACKED;
212 //struct GNUNET_TIME_RelativeNBO latency;
215 * Which peer sent the message?
217 struct GNUNET_PeerIdentity peer;
225 * First of the ATS information blocks (we must have at least
226 * one due to the 0-termination requirement).
228 struct GNUNET_TRANSPORT_ATS_Information ats;
233 * Message used to notify the transport API that it can
234 * send another message to the transport service.
240 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_SEND_OK
242 struct GNUNET_MessageHeader header;
245 * GNUNET_OK if the transmission succeeded,
246 * GNUNET_SYSERR if it failed (i.e. network disconnect);
247 * in either case, it is now OK for this client to
248 * send us another message for the given peer.
250 uint32_t success GNUNET_PACKED;
255 struct GNUNET_TIME_RelativeNBO latency;
258 * Which peer can send more now?
260 struct GNUNET_PeerIdentity peer;
266 * Message used to notify the transport service about a message
267 * to be transmitted to another peer. The actual message follows.
269 struct OutboundMessage
273 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_SEND
275 struct GNUNET_MessageHeader header;
280 uint32_t priority GNUNET_PACKED;
285 struct GNUNET_TIME_RelativeNBO timeout;
288 * Which peer should receive the message?
290 struct GNUNET_PeerIdentity peer;
296 * Message from the library to the transport service
297 * asking for converting a transport address to a
298 * human-readable UTF-8 string.
300 struct AddressLookupMessage
304 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_ADDRESS_LOOKUP
306 struct GNUNET_MessageHeader header;
309 * Should the conversion use numeric IP addresses (otherwise
310 * a reverse DNS lookup is OK -- if applicable).
312 int32_t numeric_only GNUNET_PACKED;
315 * timeout to give up.
317 struct GNUNET_TIME_AbsoluteNBO timeout;
320 * Length of the (binary) address in bytes, in big-endian.
322 uint32_t addrlen GNUNET_PACKED;
324 /* followed by 'addrlen' bytes of the actual address, then
325 followed by the 0-terminated name of the transport */
331 * Change in blacklisting (either request or notification,
332 * depending on which direction it is going).
334 struct BlacklistMessage
338 * Type will be GNUNET_MESSAGE_TYPE_TRANSPORT_BLACKLIST_QUERY or
339 * GNUNET_MESSAGE_TYPE_TRANSPORT_BLACKLIST_REPLY.
341 struct GNUNET_MessageHeader header;
344 * 0 for the query, GNUNET_OK (allowed) or GNUNET_SYSERR (disallowed)
347 uint32_t is_allowed GNUNET_PACKED;
350 * Which peer is being blacklisted or queried?
352 struct GNUNET_PeerIdentity peer;
357 /* end of transport.h */