1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
/*
This file is part of GNUnet.
Copyright (C) 2009, 2010, 2011 GNUnet e.V.
GNUnet is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License,
or (at your option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file core/gnunet-service-core_kx.h
* @brief code for managing the key exchange (SET_KEY, PING, PONG) with other peers
* @author Christian Grothoff
*/
#ifndef GNUNET_SERVICE_CORE_KX_H
#define GNUNET_SERVICE_CORE_KX_H
#include "gnunet_util_lib.h"
#include "gnunet_transport_service.h"
/**
* Information about the status of a key exchange with another peer.
*/
struct GSC_KeyExchangeInfo;
/**
* Encrypt and transmit a message with the given payload.
*
* @param kx key exchange context
* @param payload payload of the message
* @param payload_size number of bytes in 'payload'
*/
void
GSC_KX_encrypt_and_transmit (struct GSC_KeyExchangeInfo *kx,
const void *payload,
size_t payload_size);
/**
* Initialize KX subsystem.
*
* @param pk private key to use for the peer
* @return #GNUNET_OK on success, #GNUNET_SYSERR on failure
*/
int
GSC_KX_init (struct GNUNET_CRYPTO_EddsaPrivateKey *pk);
/**
* Shutdown KX subsystem.
*/
void
GSC_KX_done (void);
/**
* Check if the given neighbour has excess bandwidth available.
*
* @param target neighbour to check
* @return #GNUNET_YES if excess bandwidth is available, #GNUNET_NO if not
*/
int
GSC_NEIGHBOURS_check_excess_bandwidth (const struct GSC_KeyExchangeInfo *target);
/**
* Check how many messages are queued for the given neighbour.
*
* @param target neighbour to check
* @return number of items in the message queue
*/
unsigned int
GSC_NEIGHBOURS_get_queue_length (const struct GSC_KeyExchangeInfo *target);
/**
* Handle #GNUNET_MESSAGE_TYPE_CORE_MONITOR_PEERS request. For this
* request type, the client does not have to have transmitted an INIT
* request. All current peers are returned, regardless of which
* message types they accept.
*
* @param mq message queue to add for monitoring
*/
void
GSC_KX_handle_client_monitor_peers (struct GNUNET_MQ_Handle *mq);
#endif
/* end of gnunet-service-core_kx.h */
|
