Commit | Line | Data |
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704232c2 JB |
1 | /* |
2 | * Wireless configuration interface internals. | |
3 | * | |
4 | * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net> | |
5 | */ | |
6 | #ifndef __NET_WIRELESS_CORE_H | |
7 | #define __NET_WIRELESS_CORE_H | |
8 | #include <linux/mutex.h> | |
9 | #include <linux/list.h> | |
10 | #include <linux/netdevice.h> | |
11 | #include <net/genetlink.h> | |
12 | #include <net/wireless.h> | |
13 | #include <net/cfg80211.h> | |
14 | ||
15 | struct cfg80211_registered_device { | |
16 | struct cfg80211_ops *ops; | |
17 | struct list_head list; | |
18 | /* we hold this mutex during any call so that | |
19 | * we cannot do multiple calls at once, and also | |
20 | * to avoid the deregister call to proceed while | |
21 | * any call is in progress */ | |
22 | struct mutex mtx; | |
23 | ||
24 | /* wiphy index, internal only */ | |
25 | int idx; | |
26 | ||
27 | /* associate netdev list */ | |
28 | struct mutex devlist_mtx; | |
29 | struct list_head netdev_list; | |
30 | ||
31 | /* must be last because of the way we do wiphy_priv(), | |
32 | * and it should at least be aligned to NETDEV_ALIGN */ | |
33 | struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN))); | |
34 | }; | |
35 | ||
36 | static inline | |
37 | struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy) | |
38 | { | |
39 | BUG_ON(!wiphy); | |
40 | return container_of(wiphy, struct cfg80211_registered_device, wiphy); | |
41 | } | |
42 | ||
43 | extern struct mutex cfg80211_drv_mutex; | |
44 | extern struct list_head cfg80211_drv_list; | |
45 | ||
55682965 JB |
46 | /* |
47 | * This function returns a pointer to the driver | |
48 | * that the genl_info item that is passed refers to. | |
49 | * If successful, it returns non-NULL and also locks | |
50 | * the driver's mutex! | |
51 | * | |
52 | * This means that you need to call cfg80211_put_dev() | |
53 | * before being allowed to acquire &cfg80211_drv_mutex! | |
54 | * | |
55 | * This is necessary because we need to lock the global | |
56 | * mutex to get an item off the list safely, and then | |
57 | * we lock the drv mutex so it doesn't go away under us. | |
58 | * | |
59 | * We don't want to keep cfg80211_drv_mutex locked | |
60 | * for all the time in order to allow requests on | |
61 | * other interfaces to go through at the same time. | |
62 | * | |
63 | * The result of this can be a PTR_ERR and hence must | |
64 | * be checked with IS_ERR() for errors. | |
65 | */ | |
66 | extern struct cfg80211_registered_device * | |
67 | cfg80211_get_dev_from_info(struct genl_info *info); | |
68 | ||
69 | /* identical to cfg80211_get_dev_from_info but only operate on ifindex */ | |
70 | extern struct cfg80211_registered_device * | |
71 | cfg80211_get_dev_from_ifindex(int ifindex); | |
72 | ||
73 | extern void cfg80211_put_dev(struct cfg80211_registered_device *drv); | |
74 | ||
704232c2 JB |
75 | /* free object */ |
76 | extern void cfg80211_dev_free(struct cfg80211_registered_device *drv); | |
77 | ||
55682965 JB |
78 | extern int cfg80211_dev_rename(struct cfg80211_registered_device *drv, |
79 | char *newname); | |
80 | ||
8318d78a JB |
81 | void ieee80211_set_bitrate_flags(struct wiphy *wiphy); |
82 | void wiphy_update_regulatory(struct wiphy *wiphy); | |
83 | ||
704232c2 | 84 | #endif /* __NET_WIRELESS_CORE_H */ |