aboutsummaryrefslogtreecommitdiff
path: root/src/include/gnunet_nat_auto_service.h
blob: a588343353b4d9c5068ea9d5d72bde3dc666cedc (plain)
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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
/*
     This file is part of GNUnet.
     Copyright (C) 2007-2017 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/>.
*/

/**
 * @author Christian Grothoff
 * @author Milan Bouchet-Valat
 *
 * @file
 * Service for testing and autoconfiguration of
 * NAT traversal functionality
 *
 * @defgroup nat  NAT testing library
 *
 * @{
 */

#ifndef GNUNET_NAT_AUTO_SERVICE_H
#define GNUNET_NAT_AUTO_SERVICE_H

#include "gnunet_util_lib.h"
#include "gnunet_nat_service.h"


/**
 * Handle to a NAT test.
 */
struct GNUNET_NAT_AUTO_Test;


/**
 * Start testing if NAT traversal works using the given configuration.
 *  The transport adapters should be down while using this function.
 *
 * @param cfg configuration for the NAT traversal
 * @param proto protocol to test, i.e. IPPROTO_TCP or IPPROTO_UDP
 * @param section_name configuration section to use for configuration
 * @param report function to call with the result of the test
 * @param report_cls closure for @a report
 * @return handle to cancel NAT test
 */
struct GNUNET_NAT_AUTO_Test *
GNUNET_NAT_AUTO_test_start (const struct GNUNET_CONFIGURATION_Handle *cfg,
			    uint8_t proto,
			    const char *section_name,
			    GNUNET_NAT_TestCallback report,
			    void *report_cls);


/**
 * Stop an active NAT test.
 *
 * @param tst test to stop.
 */
void
GNUNET_NAT_AUTO_test_stop (struct GNUNET_NAT_AUTO_Test *tst);


/**
 * Handle to auto-configuration in progress.
 */
struct GNUNET_NAT_AUTO_AutoHandle;


/**
 * Converts `enum GNUNET_NAT_StatusCode` to string
 *
 * @param err error code to resolve to a string
 * @return point to a static string containing the error code
 */
const char *
GNUNET_NAT_AUTO_status2string (enum GNUNET_NAT_StatusCode err);


/**
 * Function called with the result from the autoconfiguration.
 *
 * @param cls closure
 * @param diff minimal suggested changes to the original configuration
 *             to make it work (as best as we can)
 * @param result #GNUNET_NAT_ERROR_SUCCESS on success, otherwise the specific error code
 * @param type what the situation of the NAT
 */
typedef void
(*GNUNET_NAT_AUTO_AutoResultCallback)(void *cls,
				      const struct GNUNET_CONFIGURATION_Handle *diff,
				      enum GNUNET_NAT_StatusCode result,
				      enum GNUNET_NAT_Type type);


/**
 * Start auto-configuration routine.  The transport adapters should
 * be stopped while this function is called.
 *
 * @param cfg initial configuration
 * @param cb function to call with autoconfiguration result
 * @param cb_cls closure for @a cb
 * @return handle to cancel operation
 */
struct GNUNET_NAT_AUTO_AutoHandle *
GNUNET_NAT_AUTO_autoconfig_start (const struct GNUNET_CONFIGURATION_Handle *cfg,
				  GNUNET_NAT_AUTO_AutoResultCallback cb,
				  void *cb_cls);


/**
 * Abort autoconfiguration.
 *
 * @param ah handle for operation to abort
 */
void
GNUNET_NAT_AUTO_autoconfig_cancel (struct GNUNET_NAT_AUTO_AutoHandle *ah);


#endif

/** @} */  /* end of group */

/* end of gnunet_nat_auto_service.h */