2 This file is part of GNUnet.
3 (C) 2009, 2010, 2011 Christian Grothoff (and other contributing authors)
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13 General Public License for more details.
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22 * @file core/gnunet-service-core_neighbours.h
23 * @brief code for managing of 'encrypted' sessions (key exchange done)
24 * @author Christian Grothoff
26 #ifndef GNUNET_SERVICE_CORE_SESSIONS_H
27 #define GNUNET_SERVICE_CORE_SESSIONS_H
29 #include "gnunet-service-core.h"
30 #include "gnunet-service-core_kx.h"
34 * Create a session, a key exchange was just completed.
36 * @param peer peer that is now connected
37 * @param kx key exchange that completed
40 GSC_SESSIONS_create (const struct GNUNET_PeerIdentity *peer,
41 struct GSC_KeyExchangeInfo *kx);
45 * Update information about a session.
47 * @param peer peer who's session should be updated
48 * @param bw_out new outbound bandwidth limit for the peer
51 GSC_SESSIONS_update (const struct GNUNET_PeerIdentity *peer,
52 struct GNUNET_BANDWIDTH_Value32NBO bw_out);
56 * End the session with the given peer (we are no longer
59 * @param pid identity of peer to kill session with
62 GSC_SESSIONS_end (const struct GNUNET_PeerIdentity *pid);
66 * Traffic is being solicited for the given peer. This means that the
67 * message queue on the transport-level (NEIGHBOURS subsystem) is now
68 * empty and it is now OK to transmit another (non-control) message.
70 * @param pid identity of peer ready to receive data
73 GSC_SESSIONS_solicit (const struct GNUNET_PeerIdentity *pid);
77 * Queue a request from a client for transmission to a particular peer.
79 * @param car request to queue; this handle is then shared between
80 * the caller (CLIENTS subsystem) and SESSIONS and must not
81 * be released by either until either 'GNUNET_SESSIONS_dequeue',
82 * or 'GNUNET_CLIENTS_failed'
83 * have been invoked on it
86 GSC_SESSIONS_queue_request (struct GSC_ClientActiveRequest *car);
90 * Dequeue a request from a client from transmission to a particular peer.
92 * @param car request to dequeue; this handle will then be 'owned' by
93 * the caller (CLIENTS sysbsystem)
96 GSC_SESSIONS_dequeue_request (struct GSC_ClientActiveRequest *car);
100 * Transmit a message to a particular peer.
102 * @param car original request that was queued and then solicited,
103 * ownership does not change (dequeue will be called soon).
104 * @param msg message to transmit
105 * @param cork is corking allowed?
108 GSC_SESSIONS_transmit (struct GSC_ClientActiveRequest *car,
109 const struct GNUNET_MessageHeader *msg,
114 * Broadcast a message to all neighbours.
116 * @param msg message to transmit
119 GSC_SESSIONS_broadcast (const struct GNUNET_MessageHeader *msg);
123 * We have a new client, notify it about all current sessions.
125 * @param client the new client
128 GSC_SESSIONS_notify_client_about_sessions (struct GSC_Client *client);
132 * Handle CORE_ITERATE_PEERS request. For this request type, the client
133 * does not have to have transmitted an INIT request. All current peers
134 * are returned, regardless of which message types they accept.
137 * @param client client sending the iteration request
138 * @param message iteration request message
141 GSC_SESSIONS_handle_client_iterate_peers (void *cls, struct GNUNET_SERVER_Client *client,
142 const struct GNUNET_MessageHeader *message);
146 * Handle CORE_PEER_CONNECTED request. Notify client about connection
147 * to the given neighbour. For this request type, the client does not
148 * have to have transmitted an INIT request. All current peers are
149 * returned, regardless of which message types they accept.
152 * @param client client sending the iteration request
153 * @param message iteration request message
156 GSC_SESSIONS_handle_client_have_peer (void *cls, struct GNUNET_SERVER_Client *client,
157 const struct GNUNET_MessageHeader *message);
162 * Initialize sessions subsystem.
165 GSC_SESSIONS_init (void);
169 * Shutdown sessions subsystem.
172 GSC_SESSIONS_done (void);