libhydra: Move kernel interface to libcharon
[strongswan.git] / src / libcharon / plugins / kernel_netlink / kernel_netlink_plugin.c
1 /*
2 * Copyright (C) 2008 Tobias Brunner
3 * Hochschule fuer Technik Rapperswil
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * for more details.
14 */
15
16
17 #include "kernel_netlink_plugin.h"
18
19 #include "kernel_netlink_ipsec.h"
20 #include "kernel_netlink_net.h"
21
22 typedef struct private_kernel_netlink_plugin_t private_kernel_netlink_plugin_t;
23
24 /**
25 * private data of kernel netlink plugin
26 */
27 struct private_kernel_netlink_plugin_t {
28 /**
29 * implements plugin interface
30 */
31 kernel_netlink_plugin_t public;
32 };
33
34 METHOD(plugin_t, get_name, char*,
35 private_kernel_netlink_plugin_t *this)
36 {
37 return "kernel-netlink";
38 }
39
40 METHOD(plugin_t, get_features, int,
41 private_kernel_netlink_plugin_t *this, plugin_feature_t *features[])
42 {
43 static plugin_feature_t f[] = {
44 PLUGIN_CALLBACK(kernel_ipsec_register, kernel_netlink_ipsec_create),
45 PLUGIN_PROVIDE(CUSTOM, "kernel-ipsec"),
46 PLUGIN_CALLBACK(kernel_net_register, kernel_netlink_net_create),
47 PLUGIN_PROVIDE(CUSTOM, "kernel-net"),
48 };
49 *features = f;
50 return countof(f);
51 }
52
53 METHOD(plugin_t, destroy, void,
54 private_kernel_netlink_plugin_t *this)
55 {
56 free(this);
57 }
58
59 /*
60 * see header file
61 */
62 plugin_t *kernel_netlink_plugin_create()
63 {
64 private_kernel_netlink_plugin_t *this;
65
66 if (!lib->caps->keep(lib->caps, CAP_NET_ADMIN))
67 { /* required to bind/use XFRM sockets / create/modify routing tables, but
68 * not if only the read-only parts of kernel-netlink-net are used, so
69 * we don't fail here */
70 DBG1(DBG_KNL, "kernel-netlink plugin might require CAP_NET_ADMIN "
71 "capability");
72 }
73
74 INIT(this,
75 .public = {
76 .plugin = {
77 .get_name = _get_name,
78 .get_features = _get_features,
79 .destroy = _destroy,
80 },
81 },
82 );
83
84 return &this->public.plugin;
85 }