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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.
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11 WITHOUT ANY WARRANTY; without even the implied warranty of
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17 * @file core/gnunet-service-core_kx.h
18 * @brief code for managing the key exchange (SET_KEY, PING, PONG) with other peers
19 * @author Christian Grothoff
21 #ifndef GNUNET_SERVICE_CORE_KX_H
22 #define GNUNET_SERVICE_CORE_KX_H
24 #include "gnunet_util_lib.h"
25 #include "gnunet_transport_service.h"
29 * Information about the status of a key exchange with another peer.
31 struct GSC_KeyExchangeInfo;
35 * Encrypt and transmit a message with the given payload.
37 * @param kx key exchange context
38 * @param payload payload of the message
39 * @param payload_size number of bytes in 'payload'
42 GSC_KX_encrypt_and_transmit (struct GSC_KeyExchangeInfo *kx,
48 * Initialize KX subsystem.
50 * @param pk private key to use for the peer
51 * @return #GNUNET_OK on success, #GNUNET_SYSERR on failure
54 GSC_KX_init (struct GNUNET_CRYPTO_EddsaPrivateKey *pk);
58 * Shutdown KX subsystem.
65 * Check if the given neighbour has excess bandwidth available.
67 * @param target neighbour to check
68 * @return #GNUNET_YES if excess bandwidth is available, #GNUNET_NO if not
71 GSC_NEIGHBOURS_check_excess_bandwidth (const struct GSC_KeyExchangeInfo *target);
75 * Check how many messages are queued for the given neighbour.
77 * @param target neighbour to check
78 * @return number of items in the message queue
81 GSC_NEIGHBOURS_get_queue_length (const struct GSC_KeyExchangeInfo *target);
85 * Handle #GNUNET_MESSAGE_TYPE_CORE_MONITOR_PEERS request. For this
86 * request type, the client does not have to have transmitted an INIT
87 * request. All current peers are returned, regardless of which
88 * message types they accept.
90 * @param mq message queue to add for monitoring
93 GSC_KX_handle_client_monitor_peers (struct GNUNET_MQ_Handle *mq);
97 /* end of gnunet-service-core_kx.h */