2 This file is part of GNUnet.
3 Copyright (C) 2009, 2010, 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/>.
20 * @file core/gnunet-service-core_kx.h
21 * @brief code for managing the key exchange (SET_KEY, PING, PONG) with other peers
22 * @author Christian Grothoff
24 #ifndef GNUNET_SERVICE_CORE_KX_H
25 #define GNUNET_SERVICE_CORE_KX_H
27 #include "gnunet_util_lib.h"
28 #include "gnunet_transport_service.h"
32 * Information about the status of a key exchange with another peer.
34 struct GSC_KeyExchangeInfo;
38 * Encrypt and transmit a message with the given payload.
40 * @param kx key exchange context
41 * @param payload payload of the message
42 * @param payload_size number of bytes in 'payload'
45 GSC_KX_encrypt_and_transmit (struct GSC_KeyExchangeInfo *kx,
51 * Initialize KX subsystem.
53 * @param pk private key to use for the peer
54 * @return #GNUNET_OK on success, #GNUNET_SYSERR on failure
57 GSC_KX_init (struct GNUNET_CRYPTO_EddsaPrivateKey *pk);
61 * Shutdown KX subsystem.
68 * Check if the given neighbour has excess bandwidth available.
70 * @param target neighbour to check
71 * @return #GNUNET_YES if excess bandwidth is available, #GNUNET_NO if not
74 GSC_NEIGHBOURS_check_excess_bandwidth (const struct GSC_KeyExchangeInfo *target);
78 * Check how many messages are queued for the given neighbour.
80 * @param target neighbour to check
81 * @return number of items in the message queue
84 GSC_NEIGHBOURS_get_queue_length (const struct GSC_KeyExchangeInfo *target);
88 * Handle #GNUNET_MESSAGE_TYPE_CORE_MONITOR_PEERS request. For this
89 * request type, the client does not have to have transmitted an INIT
90 * request. All current peers are returned, regardless of which
91 * message types they accept.
93 * @param mq message queue to add for monitoring
96 GSC_KX_handle_client_monitor_peers (struct GNUNET_MQ_Handle *mq);
100 /* end of gnunet-service-core_kx.h */