| 1 |
62 |
marcus.erl |
/*
|
| 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 |
|
|
|
| 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 |
|
|
|
| 75 |
|
|
/* free object */
|
| 76 |
|
|
extern void cfg80211_dev_free(struct cfg80211_registered_device *drv);
|
| 77 |
|
|
|
| 78 |
|
|
extern int cfg80211_dev_rename(struct cfg80211_registered_device *drv,
|
| 79 |
|
|
char *newname);
|
| 80 |
|
|
|
| 81 |
|
|
#endif /* __NET_WIRELESS_CORE_H */
|
