fix up hostapd for mac80211

[openwrt/svn-archive/archive.git] / package / mac80211 / src / net / wireless / core.h

diff --git a/package/mac80211/src/net/wireless/core.h b/package/mac80211/src/net/wireless/core.h
new file mode 100644 (file)
index 0000000..eb0f846
--- /dev/null
+++ b/package/mac80211/src/net/wireless/core.h
@@ -0,0 +1,81 @@
+/*
+ * Wireless configuration interface internals.
+ *
+ * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
+ */
+#ifndef __NET_WIRELESS_CORE_H
+#define __NET_WIRELESS_CORE_H
+#include <linux/mutex.h>
+#include <linux/list.h>
+#include <linux/netdevice.h>
+#include <net/genetlink.h>
+#include <net/wireless.h>
+#include <net/cfg80211.h>
+
+struct cfg80211_registered_device {
+       struct cfg80211_ops *ops;
+       struct list_head list;
+       /* we hold this mutex during any call so that
+        * we cannot do multiple calls at once, and also
+        * to avoid the deregister call to proceed while
+        * any call is in progress */
+       struct mutex mtx;
+
+       /* wiphy index, internal only */
+       int idx;
+
+       /* associate netdev list */
+       struct mutex devlist_mtx;
+       struct list_head netdev_list;
+
+       /* 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)));
+};
+
+static inline
+struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy)
+{
+       BUG_ON(!wiphy);
+       return container_of(wiphy, struct cfg80211_registered_device, wiphy);
+}
+
+extern struct mutex cfg80211_drv_mutex;
+extern struct list_head cfg80211_drv_list;
+
+/*
+ * This function returns a pointer to the driver
+ * that the genl_info item that is passed refers to.
+ * If successful, it returns non-NULL and also locks
+ * the driver's mutex!
+ *
+ * This means that you need to call cfg80211_put_dev()
+ * before being allowed to acquire &cfg80211_drv_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
+ * for all the time in order to allow requests on
+ * other interfaces to go through at the same time.
+ *
+ * The result of this can be a PTR_ERR and hence must
+ * be checked with IS_ERR() for errors.
+ */
+extern struct cfg80211_registered_device *
+cfg80211_get_dev_from_info(struct genl_info *info);
+
+/* identical to cfg80211_get_dev_from_info but only operate on ifindex */
+extern struct cfg80211_registered_device *
+cfg80211_get_dev_from_ifindex(int ifindex);
+
+extern void cfg80211_put_dev(struct cfg80211_registered_device *drv);
+
+/* free object */
+extern void cfg80211_dev_free(struct cfg80211_registered_device *drv);
+
+extern int cfg80211_dev_rename(struct cfg80211_registered_device *drv,
+                              char *newname);
+
+#endif /* __NET_WIRELESS_CORE_H */