2 This file is part of GNUnet.
3 Copyright (C) 2011 GNUnet e.V.
5 GNUnet is free software: you can redistribute it and/or modify it
6 under the terms of the GNU Affero General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
8 or (at your 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 Affero General Public License for more details.
15 You should have received a copy of the GNU Affero General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
18 SPDX-License-Identifier: AGPL3.0-or-later
22 * @file dht/gnunet-service-dht_routing.h
23 * @brief GNUnet DHT tracking of requests for routing replies
24 * @author Christian Grothoff
26 #ifndef GNUNET_SERVICE_DHT_ROUTING_H
27 #define GNUNET_SERVICE_DHT_ROUTING_H
29 #include "gnunet_util_lib.h"
30 #include "gnunet_block_lib.h"
31 #include "gnunet_dht_service.h"
35 * Handle a reply (route to origin). Only forwards the reply back to
36 * other peers waiting for it. Does not do local caching or
37 * forwarding to local clients. Essentially calls
38 * #GDS_NEIGHBOURS_handle_reply() for all peers that sent us a matching
41 * @param type type of the block
42 * @param expiration_time when does the content expire
43 * @param key key for the content
44 * @param put_path_length number of entries in @a put_path
45 * @param put_path peers the original PUT traversed (if tracked)
46 * @param get_path_length number of entries in @a get_path
47 * @param get_path peers this reply has traversed so far (if tracked)
48 * @param data payload of the reply
49 * @param data_size number of bytes in @a data
52 GDS_ROUTING_process (enum GNUNET_BLOCK_Type type,
53 struct GNUNET_TIME_Absolute expiration_time,
54 const struct GNUNET_HashCode *key,
55 unsigned int put_path_length,
56 const struct GNUNET_PeerIdentity *put_path,
57 unsigned int get_path_length,
58 const struct GNUNET_PeerIdentity *get_path,
64 * Add a new entry to our routing table.
66 * @param sender peer that originated the request
67 * @param type type of the block
68 * @param bg block group to evaluate replies, henceforth owned by routing
69 * @param options options for processing
70 * @param key key for the content
71 * @param xquery extended query
72 * @param xquery_size number of bytes in @a xquery
75 GDS_ROUTING_add (const struct GNUNET_PeerIdentity *sender,
76 enum GNUNET_BLOCK_Type type,
77 struct GNUNET_BLOCK_Group *bg,
78 enum GNUNET_DHT_RouteOption options,
79 const struct GNUNET_HashCode *key,
85 * Initialize routing subsystem.
88 GDS_ROUTING_init (void);
92 * Shutdown routing subsystem.
95 GDS_ROUTING_done (void);