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author | Christian Grothoff <christian@grothoff.org> | 2017-01-05 18:51:02 +0100 |
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committer | Christian Grothoff <christian@grothoff.org> | 2017-01-05 18:51:02 +0100 |
commit | 8c1ee5dd1319bcd9ddb6c55d2104c286b61b2e99 (patch) | |
tree | 704449a28ae0249ca3a3bd2789c2cbadb8171230 /src/nat/gnunet-service-nat_externalip.h | |
parent | 3c31d74877c1243b98e7b31a0d5acab91fc5795e (diff) | |
download | gnunet-8c1ee5dd1319bcd9ddb6c55d2104c286b61b2e99.tar.gz gnunet-8c1ee5dd1319bcd9ddb6c55d2104c286b61b2e99.zip |
move external IP logic to separate file
Diffstat (limited to 'src/nat/gnunet-service-nat_externalip.h')
-rw-r--r-- | src/nat/gnunet-service-nat_externalip.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/src/nat/gnunet-service-nat_externalip.h b/src/nat/gnunet-service-nat_externalip.h new file mode 100644 index 000000000..31910555d --- /dev/null +++ b/src/nat/gnunet-service-nat_externalip.h | |||
@@ -0,0 +1,92 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2009, 2015, 2016, 2017 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software; you can redistribute it and/or modify | ||
6 | it under the terms of the GNU General Public License as published | ||
7 | by the Free Software Foundation; either version 3, or (at your | ||
8 | 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 | General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU General Public License | ||
16 | along with GNUnet; see the file COPYING. If not, write to the | ||
17 | Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | ||
18 | Boston, MA 02110-1301, USA. | ||
19 | */ | ||
20 | /** | ||
21 | * Code to figure out what our external IPv4 address(es) might | ||
22 | * be (external IPv4s are what is seen on the rest of the Internet). | ||
23 | * | ||
24 | * This can be implemented using different methods, and we allow | ||
25 | * the main service to be notified about changes to what we believe | ||
26 | * is our external IPv4 address. | ||
27 | * | ||
28 | * Note that this is explicitly only about NATed systems; if one | ||
29 | * of our network interfaces has a global IP address this does | ||
30 | * not count as "external". | ||
31 | * | ||
32 | * @file nat/gnunet-service-nat_externalip.h | ||
33 | * @brief Functions for monitoring external IPv4 addresses | ||
34 | * @author Christian Grothoff | ||
35 | */ | ||
36 | #ifndef GNUNET_SERVICE_NAT_EXTERNALIP_H | ||
37 | #define GNUNET_SERVICE_NAT_EXTERNALIP_H | ||
38 | |||
39 | #include "platform.h" | ||
40 | |||
41 | |||
42 | /** | ||
43 | * We have changed our opinion about being NATed in the first | ||
44 | * place. Adapt our probing. | ||
45 | * | ||
46 | * @param have_nat #GNUNET_YES if we believe we are behind NAT | ||
47 | */ | ||
48 | void | ||
49 | GN_nat_status_changed (int have_nat); | ||
50 | |||
51 | |||
52 | /** | ||
53 | * Function we call when we believe our external IPv4 address changed. | ||
54 | * | ||
55 | * @param cls closure | ||
56 | * @param ip address to add/remove | ||
57 | * @param add_remove #GNUNET_YES to add, #GNUNET_NO to remove | ||
58 | */ | ||
59 | typedef void | ||
60 | (*GN_NotifyExternalIPv4Change)(void *cls, | ||
61 | const struct in_addr *ip, | ||
62 | int add_remove); | ||
63 | |||
64 | |||
65 | /** | ||
66 | * Handle to monitor for external IP changes. | ||
67 | */ | ||
68 | struct GN_ExternalIPMonitor; | ||
69 | |||
70 | |||
71 | /** | ||
72 | * Start monitoring external IPv4 addresses. | ||
73 | * | ||
74 | * @param cb function to call on changes | ||
75 | * @param cb_cls closure for @a cb | ||
76 | * @return handle to cancel | ||
77 | */ | ||
78 | struct GN_ExternalIPMonitor * | ||
79 | GN_external_ipv4_monitor_start (GN_NotifyExternalIPv4Change cb, | ||
80 | void *cb_cls); | ||
81 | |||
82 | |||
83 | /** | ||
84 | * Stop calling monitor. | ||
85 | * | ||
86 | * @param mon monitor to call | ||
87 | */ | ||
88 | void | ||
89 | GN_external_ipv4_monitor_stop (struct GN_ExternalIPMonitor *mon); | ||
90 | |||
91 | |||
92 | #endif | ||