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22 * @file mesh/gnunet-service-mesh_peer.h
23 * @brief mesh service; dealing with remote peers
24 * @author Bartlomiej Polot
26 * All functions in this file should use the prefix GMP (Gnunet Mesh Peer)
29 #ifndef GNUNET_SERVICE_MESH_PEER_H
30 #define GNUNET_SERVICE_MESH_PEER_H
35 #if 0 /* keep Emacsens' auto-indent happy */
41 #include "gnunet_util_lib.h"
44 * Struct containing all information regarding a given peer
49 * Callback called when a queued message is sent.
52 * @param c Connection this message was on.
53 * @param type Type of message sent.
54 * @param fwd Was this a FWD going message?
55 * @param size Size of the message.
56 * @param wait Time spent waiting for core (only the time for THIS message)
58 typedef void (*GMP_sent) (void *cls,
59 struct MeshConnection *c, uint16_t type,
61 struct GNUNET_TIME_Relative wait);
63 #include "gnunet-service-mesh_connection.h"
66 /******************************************************************************/
67 /******************************** API ***********************************/
68 /******************************************************************************/
71 * Initialize peer subsystem.
73 * @param c Configuration.
76 GMP_init (const struct GNUNET_CONFIGURATION_Handle *c);
79 * Shut down the peer subsystem.
86 * Retrieve the MeshPeer stucture associated with the peer, create one
87 * and insert it in the appropriate structures if the peer is not known yet.
89 * @param peer Full identity of the peer.
91 * @return Existing or newly created peer structure.
94 GMP_get (const struct GNUNET_PeerIdentity *peer_id);
98 * Retrieve the MeshPeer stucture associated with the peer, create one
99 * and insert it in the appropriate structures if the peer is not known yet.
101 * @param peer Short identity of the peer.
103 * @return Existing or newly created peer structure.
106 GMP_get_short (const GNUNET_PEER_Id peer);
109 * Try to establish a new connection to this peer (in its tunnel).
110 * If the peer doesn't have any path to it yet, try to get one.
111 * If the peer already has some path, send a CREATE CONNECTION towards it.
113 * @param peer Peer to connect to.
116 GMP_connect (struct MeshPeer *peer);
119 * @brief Queue and pass message to core when possible.
121 * @param peer Peer towards which to queue the message.
122 * @param cls Closure (@c type dependant). It will be used by queue_send to
123 * build the message to be sent if not already prebuilt.
124 * @param type Type of the message, 0 for a raw message.
125 * @param size Size of the message.
126 * @param c Connection this message belongs to (cannot be NULL).
127 * @param ch Channel this message belongs to, if applicable (otherwise NULL).
128 * @param fwd Is this a message going root->dest? (FWD ACK are NOT FWD!)
129 * @param cont Continuation to be called once CORE has taken the message.
130 * @param cont_cls Closure for @c cont.
133 GMP_queue_add (struct MeshPeer *peer, void *cls, uint16_t type, size_t size,
134 struct MeshConnection *c, struct MeshChannel *ch, int fwd,
135 GMP_sent cont, void *cont_cls);
138 * Cancel all queued messages to a peer that belong to a certain connection.
140 * @param peer Peer towards whom to cancel.
141 * @param c Connection whose queued messages to cancel.
144 GMP_queue_cancel (struct MeshPeer *peer, struct MeshConnection *c);
147 GMP_queue_unlock (struct MeshPeer *peer, struct MeshConnection *c);
156 GMP_set_tunnel (struct MeshPeer *peer, struct MeshTunnel3 *t);
159 * Check whether there is a direct (core level) connection to peer.
161 * @param peer Peer to check.
163 * @return GNUNET_YES if there is a direct connection.
166 GMP_is_neighbor (const struct MeshPeer *peer);
169 * Create and initialize a new tunnel towards a peer, in case it has none.
171 * Does not generate any traffic, just creates the local data structures.
173 * @param peer Peer towards which to create the tunnel.
176 GMP_add_tunnel (struct MeshPeer *peer);
179 * Add a connection to a neighboring peer.
181 * Store that the peer is the first hop of the connection in one
182 * direction and that on peer disconnect the connection must be
183 * notified and destroyed, for it will no longer be valid.
185 * @param peer Peer to add connection to.
186 * @param c Connection to add.
188 * @return GNUNET_OK on success.
191 GMP_add_connection (struct MeshPeer *peer, struct MeshConnection *c);
194 * Add the path to the peer and update the path used to reach it in case this
197 * @param peer_info Destination peer to add the path to.
198 * @param path New path to add. Last peer must be the peer in arg 1.
199 * Path will be either used of freed if already known.
200 * @param trusted Do we trust that this path is real?
203 GMP_add_path (struct MeshPeer *peer, struct MeshPeerPath *p, int trusted);
206 * Add the path to the origin peer and update the path used to reach it in case
207 * this is the shortest.
208 * The path is given in peer_info -> destination, therefore we turn the path
211 * @param peer_info Peer to add the path to, being the origin of the path.
212 * @param path New path to add after being inversed.
213 * Path will be either used or freed.
214 * @param trusted Do we trust that this path is real?
217 GMP_add_path_to_origin (struct MeshPeer *peer_info,
218 struct MeshPeerPath *path,
222 * Adds a path to the info of all the peers in the path
224 * @param p Path to process.
225 * @param confirmed Whether we know if the path works or not.
228 GMP_add_path_to_all (struct MeshPeerPath *p, int confirmed);
231 * Remove a connection from a neighboring peer.
233 * @param peer Peer to remove connection from.
234 * @param c Connection to remove.
236 * @return GNUNET_OK on success.
239 GMP_remove_connection (struct MeshPeer *peer, const struct MeshConnection *c);
242 GMP_start_search (struct MeshPeer *peer);
245 GMP_stop_search (struct MeshPeer *peer);
248 * Get the Full ID of a peer.
250 * @param peer Peer to get from.
252 * @return Full ID of peer.
254 const struct GNUNET_PeerIdentity *
255 GMP_get_id (const struct MeshPeer *peer);
258 * Get the Short ID of a peer.
260 * @param peer Peer to get from.
262 * @return Short ID of peer.
265 GMP_get_short_id (const struct MeshPeer *peer);
268 * Get the static string for a peer ID.
272 * @return Static string for it's ID.
275 GMP_2s (const struct MeshPeer *peer);
278 #if 0 /* keep Emacsens' auto-indent happy */
285 /* ifndef GNUNET_MESH_SERVICE_PEER_H */
287 /* end of gnunet-mesh-service_peer.h */