Simplify the locking and remove some deadlocks
[platform/upstream/connman.git] / plugins / ipv4.c
1 /*
2  *
3  *  Connection Manager
4  *
5  *  Copyright (C) 2007-2008  Intel Corporation. All rights reserved.
6  *
7  *  This program is free software; you can redistribute it and/or modify
8  *  it under the terms of the GNU General Public License version 2 as
9  *  published by the Free Software Foundation.
10  *
11  *  This program is distributed in the hope that it will be useful,
12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  *  GNU General Public License for more details.
15  *
16  *  You should have received a copy of the GNU General Public License
17  *  along with this program; if not, write to the Free Software
18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
19  *
20  */
21
22 #ifdef HAVE_CONFIG_H
23 #include <config.h>
24 #endif
25
26 #include <connman/plugin.h>
27 #include <connman/driver.h>
28 #include <connman/log.h>
29
30 static int ipv4_probe(struct connman_element *element)
31 {
32         struct connman_element *resolver;
33         const char *address = NULL, *netmask = NULL, *gateway = NULL;
34
35         DBG("element %p name %s", element, element->name);
36
37         connman_element_get_value(element,
38                                 CONNMAN_PROPERTY_TYPE_IPV4_ADDRESS, &address);
39         connman_element_get_value(element,
40                                 CONNMAN_PROPERTY_TYPE_IPV4_NETMASK, &netmask);
41         connman_element_get_value(element,
42                                 CONNMAN_PROPERTY_TYPE_IPV4_GATEWAY, &gateway);
43
44         DBG("address %s", address);
45         DBG("netmask %s", netmask);
46         DBG("gateway %s", gateway);
47
48         resolver = connman_element_create();
49
50         resolver->type = CONNMAN_ELEMENT_TYPE_RESOLVER;
51         resolver->netdev.name = g_strdup(element->netdev.name);
52
53         connman_element_set_data(element, resolver);
54
55         connman_element_register(resolver, element);
56
57         return 0;
58 }
59
60 static void ipv4_remove(struct connman_element *element)
61 {
62         struct connman_element *resolver = connman_element_get_data(element);
63
64         DBG("element %p name %s", element, element->name);
65
66         connman_element_set_data(element, NULL);
67
68         connman_element_unregister(resolver);
69
70         connman_element_unref(resolver);
71 }
72
73 static struct connman_driver ipv4_driver = {
74         .name           = "ipv4",
75         .type           = CONNMAN_ELEMENT_TYPE_IPV4,
76         .probe          = ipv4_probe,
77         .remove         = ipv4_remove,
78 };
79
80 static int ipv4_init(void)
81 {
82         return connman_driver_register(&ipv4_driver);
83 }
84
85 static void ipv4_exit(void)
86 {
87         connman_driver_unregister(&ipv4_driver);
88 }
89
90 CONNMAN_PLUGIN_DEFINE("ipv4", "IPv4 configuration plugin", VERSION,
91                                                         ipv4_init, ipv4_exit)