New: mac80211 stack from the wireless-dev tree

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7692 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/mac80211/src/wireless/sysfs.c

@@ -0,0 +1,130 @@
+/*
+ * This file provides /sys/class/ieee80211/<wiphy name>/
+ * and some default attributes.
+ *
+ * Copyright 2005-2006	Jiri Benc <jbenc@suse.cz>
+ * Copyright 2006	Johannes Berg <johannes@sipsolutions.net>
+ *
+ * This file is GPLv2 as found in COPYING.
+ */
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/nl80211.h>
+#include <linux/rtnetlink.h>
+#include <net/cfg80211.h>
+#include "sysfs.h"
+#include "core.h"
+
+static inline struct cfg80211_registered_device *dev_to_rdev(
+	struct device *dev)
+{
+	return container_of(dev, struct cfg80211_registered_device, wiphy.dev);
+}
+
+static ssize_t _show_index(struct device *dev, struct device_attribute *attr,
+			   char *buf)
+{
+	return sprintf(buf, "%d\n", dev_to_rdev(dev)->idx);
+}
+
+static ssize_t _show_permaddr(struct device *dev,
+			      struct device_attribute *attr,
+			      char *buf)
+{
+	unsigned char *addr = dev_to_rdev(dev)->wiphy.perm_addr;
+
+	return sprintf(buf, "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
+		       addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
+}
+
+static ssize_t _store_add_iface(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t len)
+{
+	struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
+	int res;
+
+	if (len > IFNAMSIZ)
+		return -EINVAL;
+
+	if (!rdev->ops->add_virtual_intf)
+		return -ENOSYS;
+
+	rtnl_lock();
+	res = rdev->ops->add_virtual_intf(&rdev->wiphy, (char*)buf,
+					  NL80211_IFTYPE_UNSPECIFIED);
+	rtnl_unlock();
+
+	return res ? res : len;
+}
+
+static ssize_t _store_remove_iface(struct device *dev,
+				   struct device_attribute *attr,
+				   const char *buf, size_t len)
+{
+	struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
+	int res, ifidx;
+	struct net_device *netdev;
+
+	if (len > IFNAMSIZ)
+		return -EINVAL;
+
+	if (!rdev->ops->del_virtual_intf)
+		return -ENOSYS;
+
+	netdev = dev_get_by_name(buf);
+	if (!netdev)
+		return -ENODEV;
+	ifidx = netdev->ifindex;
+	dev_put(netdev);
+
+	rtnl_lock();
+	res = rdev->ops->del_virtual_intf(&rdev->wiphy, ifidx);
+	rtnl_unlock();
+
+	return res ? res : len;
+}
+
+static struct device_attribute ieee80211_dev_attrs[] = {
+	__ATTR(index, S_IRUGO, _show_index, NULL),
+	__ATTR(macaddress, S_IRUGO, _show_permaddr, NULL),
+	__ATTR(add_iface, S_IWUGO, NULL, _store_add_iface),
+	__ATTR(remove_iface, S_IWUGO, NULL, _store_remove_iface),
+	{}
+};
+
+static void wiphy_dev_release(struct device *dev)
+{
+	struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
+
+	cfg80211_dev_free(rdev);
+}
+
+static int wiphy_uevent(struct device *dev, char **envp,
+			int num_envp, char *buf, int size)
+{
+	/* TODO, we probably need stuff here */
+	return 0;
+}
+
+struct class ieee80211_class = {
+	.name = "ieee80211",
+	.owner = THIS_MODULE,
+	.dev_release = wiphy_dev_release,
+	.dev_attrs = ieee80211_dev_attrs,
+#ifdef CONFIG_HOTPLUG
+	.dev_uevent = wiphy_uevent,
+#endif
+};
+
+int wiphy_sysfs_init(void)
+{
+	return class_register(&ieee80211_class);
+}
+
+void wiphy_sysfs_exit(void)
+{
+	class_unregister(&ieee80211_class);
+}