add git checkout support
[openwrt/openwrt.git] / package / mac80211 / src / mac80211 / cfg.c
1 /*
2 * mac80211 configuration hooks for cfg80211
3 *
4 * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * This file is GPLv2 as found in COPYING.
7 */
8
9 #include <linux/nl80211.h>
10 #include <linux/rtnetlink.h>
11 #include <net/cfg80211.h>
12 #include "ieee80211_i.h"
13 #include "cfg.h"
14
15 static enum ieee80211_if_types
16 nl80211_type_to_mac80211_type(enum nl80211_iftype type)
17 {
18 switch (type) {
19 case NL80211_IFTYPE_UNSPECIFIED:
20 return IEEE80211_IF_TYPE_STA;
21 case NL80211_IFTYPE_ADHOC:
22 return IEEE80211_IF_TYPE_IBSS;
23 case NL80211_IFTYPE_STATION:
24 return IEEE80211_IF_TYPE_STA;
25 case NL80211_IFTYPE_MONITOR:
26 return IEEE80211_IF_TYPE_MNTR;
27 default:
28 return IEEE80211_IF_TYPE_INVALID;
29 }
30 }
31
32 static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
33 enum nl80211_iftype type)
34 {
35 struct ieee80211_local *local = wiphy_priv(wiphy);
36 enum ieee80211_if_types itype;
37
38 if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
39 return -ENODEV;
40
41 itype = nl80211_type_to_mac80211_type(type);
42 if (itype == IEEE80211_IF_TYPE_INVALID)
43 return -EINVAL;
44
45 return ieee80211_if_add(local->mdev, name, NULL, itype);
46 }
47
48 static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex)
49 {
50 struct ieee80211_local *local = wiphy_priv(wiphy);
51 struct net_device *dev;
52 char *name;
53
54 if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
55 return -ENODEV;
56
57 /* we're under RTNL */
58 dev = __dev_get_by_index(ifindex);
59 if (!dev)
60 return 0;
61
62 name = dev->name;
63
64 return ieee80211_if_remove(local->mdev, name, -1);
65 }
66
67 static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
68 enum nl80211_iftype type)
69 {
70 struct ieee80211_local *local = wiphy_priv(wiphy);
71 struct net_device *dev;
72 enum ieee80211_if_types itype;
73 struct ieee80211_sub_if_data *sdata;
74
75 if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
76 return -ENODEV;
77
78 /* we're under RTNL */
79 dev = __dev_get_by_index(ifindex);
80 if (!dev)
81 return -ENODEV;
82
83 if (netif_running(dev))
84 return -EBUSY;
85
86 itype = nl80211_type_to_mac80211_type(type);
87 if (itype == IEEE80211_IF_TYPE_INVALID)
88 return -EINVAL;
89
90 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
91
92 if (sdata->type == IEEE80211_IF_TYPE_VLAN)
93 return -EOPNOTSUPP;
94
95 ieee80211_if_reinit(dev);
96 ieee80211_if_set_type(dev, itype);
97
98 return 0;
99 }
100
101 struct cfg80211_ops mac80211_config_ops = {
102 .add_virtual_intf = ieee80211_add_iface,
103 .del_virtual_intf = ieee80211_del_iface,
104 .change_virtual_intf = ieee80211_change_iface,
105 };