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diff --git a/src/core/gnunet-service-core_kx.h b/src/core/gnunet-service-core_kx.h
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1/*
2 This file is part of GNUnet.
3 Copyright (C) 2009, 2010, 2011 GNUnet e.V.
4
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.
9
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.
14
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/>.
17
18 SPDX-License-Identifier: AGPL3.0-or-later
19 */
20
21/**
22 * @file core/gnunet-service-core_kx.h
23 * @brief code for managing the key exchange (SET_KEY, PING, PONG) with other peers
24 * @author Christian Grothoff
25 */
26#ifndef GNUNET_SERVICE_CORE_KX_H
27#define GNUNET_SERVICE_CORE_KX_H
28
29#include "gnunet_util_lib.h"
30#include "gnunet_transport_service.h"
31
32
33/**
34 * Information about the status of a key exchange with another peer.
35 */
36struct GSC_KeyExchangeInfo;
37
38
39/**
40 * Encrypt and transmit a message with the given payload.
41 *
42 * @param kx key exchange context
43 * @param payload payload of the message
44 * @param payload_size number of bytes in 'payload'
45 */
46void
47GSC_KX_encrypt_and_transmit (struct GSC_KeyExchangeInfo *kx,
48 const void *payload,
49 size_t payload_size);
50
51
52/**
53 * Initialize KX subsystem.
54 *
55 * @param pk private key to use for the peer
56 * @return #GNUNET_OK on success, #GNUNET_SYSERR on failure
57 */
58int
59GSC_KX_init (struct GNUNET_CRYPTO_EddsaPrivateKey *pk);
60
61
62/**
63 * Shutdown KX subsystem.
64 */
65void
66GSC_KX_done (void);
67
68
69/**
70 * Check if the given neighbour has excess bandwidth available.
71 *
72 * @param target neighbour to check
73 * @return #GNUNET_YES if excess bandwidth is available, #GNUNET_NO if not
74 */
75int
76GSC_NEIGHBOURS_check_excess_bandwidth (const struct
77 GSC_KeyExchangeInfo *target);
78
79
80/**
81 * Check how many messages are queued for the given neighbour.
82 *
83 * @param target neighbour to check
84 * @return number of items in the message queue
85 */
86unsigned int
87GSC_NEIGHBOURS_get_queue_length (const struct GSC_KeyExchangeInfo *target);
88
89
90/**
91 * Handle #GNUNET_MESSAGE_TYPE_CORE_MONITOR_PEERS request. For this
92 * request type, the client does not have to have transmitted an INIT
93 * request. All current peers are returned, regardless of which
94 * message types they accept.
95 *
96 * @param mq message queue to add for monitoring
97 */
98void
99GSC_KX_handle_client_monitor_peers (struct GNUNET_MQ_Handle *mq);
100
101
102#endif
103/* end of gnunet-service-core_kx.h */