diff options
Diffstat (limited to 'net/wireless/core.h')
| -rw-r--r-- | net/wireless/core.h | 64 |
1 files changed, 59 insertions, 5 deletions
diff --git a/net/wireless/core.h b/net/wireless/core.h index f7fb9f413028..d43daa236ef9 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -8,6 +8,9 @@ #include <linux/mutex.h> #include <linux/list.h> #include <linux/netdevice.h> +#include <linux/kref.h> +#include <linux/rbtree.h> +#include <linux/mutex.h> #include <net/genetlink.h> #include <net/wireless.h> #include <net/cfg80211.h> @@ -35,12 +38,20 @@ struct cfg80211_registered_device { enum environment_cap env; /* wiphy index, internal only */ - int idx; + int wiphy_idx; /* associate netdev list */ struct mutex devlist_mtx; struct list_head netdev_list; + /* BSSes/scanning */ + spinlock_t bss_lock; + struct list_head bss_list; + struct rb_root bss_tree; + u32 bss_generation; + struct cfg80211_scan_request *scan_req; /* protected by RTNL */ + unsigned long suspend_at; + /* must be last because of the way we do wiphy_priv(), * and it should at least be aligned to NETDEV_ALIGN */ struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN))); @@ -53,9 +64,44 @@ struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy) return container_of(wiphy, struct cfg80211_registered_device, wiphy); } -extern struct mutex cfg80211_drv_mutex; +/* Note 0 is valid, hence phy0 */ +static inline +bool wiphy_idx_valid(int wiphy_idx) +{ + return (wiphy_idx >= 0); +} + +extern struct mutex cfg80211_mutex; extern struct list_head cfg80211_drv_list; +static inline void assert_cfg80211_lock(void) +{ + WARN_ON(!mutex_is_locked(&cfg80211_mutex)); +} + +/* + * You can use this to mark a wiphy_idx as not having an associated wiphy. + * It guarantees cfg80211_drv_by_wiphy_idx(wiphy_idx) will return NULL + */ +#define WIPHY_IDX_STALE -1 + +struct cfg80211_internal_bss { + struct list_head list; + struct rb_node rbn; + unsigned long ts; + struct kref ref; + bool hold; + + /* must be last because of priv member */ + struct cfg80211_bss pub; +}; + +struct cfg80211_registered_device *cfg80211_drv_by_wiphy_idx(int wiphy_idx); +int get_wiphy_idx(struct wiphy *wiphy); + +struct cfg80211_registered_device * +__cfg80211_drv_from_info(struct genl_info *info); + /* * This function returns a pointer to the driver * that the genl_info item that is passed refers to. @@ -63,13 +109,13 @@ extern struct list_head cfg80211_drv_list; * the driver's mutex! * * This means that you need to call cfg80211_put_dev() - * before being allowed to acquire &cfg80211_drv_mutex! + * before being allowed to acquire &cfg80211_mutex! * * This is necessary because we need to lock the global * mutex to get an item off the list safely, and then * we lock the drv mutex so it doesn't go away under us. * - * We don't want to keep cfg80211_drv_mutex locked + * We don't want to keep cfg80211_mutex locked * for all the time in order to allow requests on * other interfaces to go through at the same time. * @@ -79,6 +125,9 @@ extern struct list_head cfg80211_drv_list; extern struct cfg80211_registered_device * cfg80211_get_dev_from_info(struct genl_info *info); +/* requires cfg80211_drv_mutex to be held! */ +struct wiphy *wiphy_idx_to_wiphy(int wiphy_idx); + /* identical to cfg80211_get_dev_from_info but only operate on ifindex */ extern struct cfg80211_registered_device * cfg80211_get_dev_from_ifindex(int ifindex); @@ -92,6 +141,11 @@ extern int cfg80211_dev_rename(struct cfg80211_registered_device *drv, char *newname); void ieee80211_set_bitrate_flags(struct wiphy *wiphy); -void wiphy_update_regulatory(struct wiphy *wiphy, enum reg_set_by setby); +void wiphy_update_regulatory(struct wiphy *wiphy, + enum nl80211_reg_initiator setby); + +void cfg80211_bss_expire(struct cfg80211_registered_device *dev); +void cfg80211_bss_age(struct cfg80211_registered_device *dev, + unsigned long age_secs); #endif /* __NET_WIRELESS_CORE_H */ |