Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (867 commits)
  [SKY2]: status polling loop (post merge)
  [NET]: Fix NAPI completion handling in some drivers.
  [TCP]: Limit processing lost_retrans loop to work-to-do cases
  [TCP]: Fix lost_retrans loop vs fastpath problems
  [TCP]: No need to re-count fackets_out/sacked_out at RTO
  [TCP]: Extract tcp_match_queue_to_sack from sacktag code
  [TCP]: Kill almost unused variable pcount from sacktag
  [TCP]: Fix mark_head_lost to ignore R-bit when trying to mark L
  [TCP]: Add bytes_acked (ABC) clearing to FRTO too
  [IPv6]: Update setsockopt(IPV6_MULTICAST_IF) to support RFC 3493, try2
  [NETFILTER]: x_tables: add missing ip6t_modulename aliases
  [NETFILTER]: nf_conntrack_tcp: fix connection reopening
  [QETH]: fix qeth_main.c
  [NETLINK]: fib_frontend build fixes
  [IPv6]: Export userland ND options through netlink (RDNSS support)
  [9P]: build fix with !CONFIG_SYSCTL
  [NET]: Fix dev_put() and dev_hold() comments
  [NET]: make netlink user -> kernel interface synchronious
  [NET]: unify netlink kernel socket recognition
  [NET]: cleanup 3rd argument in netlink_sendskb
  ...

Fix up conflicts manually in Documentation/feature-removal-schedule.txt
and my new least favourite crap, the "mod_devicetable" support in the
files include/linux/mod_devicetable.h and scripts/mod/file2alias.c.

(The latter files seem to be explicitly _designed_ to get conflicts when
different subsystems work with them - that have an absolutely horrid
lack of subsystem separation!)

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

8 files changed, 707 insertions, 25 deletions

diff --git a/net/wireless/Kconfig b/net/wireless/Kconfig
index a228d56a91b8..6426055a8be0 100644
--- a/net/wireless/Kconfig
+++ b/net/wireless/Kconfig
@@ -1,6 +1,19 @@
 config CFG80211
         tristate "Improved wireless configuration API"
 
+config NL80211
+	bool "nl80211 new netlink interface support"
+	depends on CFG80211
+	default y
+	---help---
+         This option turns on the new netlink interface
+         (nl80211) support in cfg80211.
+
+         If =n, drivers using mac80211 will be configured via
+         wireless extension support provided by that subsystem.
+
+         If unsure, say Y.
+
 config WIRELESS_EXT
 	bool "Wireless extensions"
 	default n
@@ -10,7 +23,9 @@ config WIRELESS_EXT
 
 	  Wireless extensions will be replaced by cfg80211 and
 	  will be required only by legacy drivers that implement
-	  wireless extension handlers.
+	  wireless extension handlers. This option does not
+	  affect the wireless-extension backward compatibility
+	  code in cfg80211.
 
 	  Say N (if you can) unless you know you need wireless
 	  extensions for external modules.
diff --git a/net/wireless/Makefile b/net/wireless/Makefile
index 092116e390b6..65710a42e5a7 100644
--- a/net/wireless/Makefile
+++ b/net/wireless/Makefile
@@ -2,3 +2,4 @@ obj-$(CONFIG_WIRELESS_EXT) += wext.o
 obj-$(CONFIG_CFG80211) += cfg80211.o
 
 cfg80211-y += core.o sysfs.o radiotap.o
+cfg80211-$(CONFIG_NL80211) += nl80211.o
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 9771451eae21..febc33bc9c09 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -16,6 +16,7 @@
 #include <net/genetlink.h>
 #include <net/cfg80211.h>
 #include <net/wireless.h>
+#include "nl80211.h"
 #include "core.h"
 #include "sysfs.h"
 
@@ -36,6 +37,146 @@ static int wiphy_counter;
 /* for debugfs */
 static struct dentry *ieee80211_debugfs_dir;
 
+/* requires cfg80211_drv_mutex to be held! */
+static struct cfg80211_registered_device *cfg80211_drv_by_wiphy(int wiphy)
+{
+	struct cfg80211_registered_device *result = NULL, *drv;
+
+	list_for_each_entry(drv, &cfg80211_drv_list, list) {
+		if (drv->idx == wiphy) {
+			result = drv;
+			break;
+		}
+	}
+
+	return result;
+}
+
+/* requires cfg80211_drv_mutex to be held! */
+static struct cfg80211_registered_device *
+__cfg80211_drv_from_info(struct genl_info *info)
+{
+	int ifindex;
+	struct cfg80211_registered_device *bywiphy = NULL, *byifidx = NULL;
+	struct net_device *dev;
+	int err = -EINVAL;
+
+	if (info->attrs[NL80211_ATTR_WIPHY]) {
+		bywiphy = cfg80211_drv_by_wiphy(
+				nla_get_u32(info->attrs[NL80211_ATTR_WIPHY]));
+		err = -ENODEV;
+	}
+
+	if (info->attrs[NL80211_ATTR_IFINDEX]) {
+		ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
+		dev = dev_get_by_index(&init_net, ifindex);
+		if (dev) {
+			if (dev->ieee80211_ptr)
+				byifidx =
+					wiphy_to_dev(dev->ieee80211_ptr->wiphy);
+			dev_put(dev);
+		}
+		err = -ENODEV;
+	}
+
+	if (bywiphy && byifidx) {
+		if (bywiphy != byifidx)
+			return ERR_PTR(-EINVAL);
+		else
+			return bywiphy; /* == byifidx */
+	}
+	if (bywiphy)
+		return bywiphy;
+
+	if (byifidx)
+		return byifidx;
+
+	return ERR_PTR(err);
+}
+
+struct cfg80211_registered_device *
+cfg80211_get_dev_from_info(struct genl_info *info)
+{
+	struct cfg80211_registered_device *drv;
+
+	mutex_lock(&cfg80211_drv_mutex);
+	drv = __cfg80211_drv_from_info(info);
+
+	/* if it is not an error we grab the lock on
+	 * it to assure it won't be going away while
+	 * we operate on it */
+	if (!IS_ERR(drv))
+		mutex_lock(&drv->mtx);
+
+	mutex_unlock(&cfg80211_drv_mutex);
+
+	return drv;
+}
+
+struct cfg80211_registered_device *
+cfg80211_get_dev_from_ifindex(int ifindex)
+{
+	struct cfg80211_registered_device *drv = ERR_PTR(-ENODEV);
+	struct net_device *dev;
+
+	mutex_lock(&cfg80211_drv_mutex);
+	dev = dev_get_by_index(&init_net, ifindex);
+	if (!dev)
+		goto out;
+	if (dev->ieee80211_ptr) {
+		drv = wiphy_to_dev(dev->ieee80211_ptr->wiphy);
+		mutex_lock(&drv->mtx);
+	} else
+		drv = ERR_PTR(-ENODEV);
+	dev_put(dev);
+ out:
+	mutex_unlock(&cfg80211_drv_mutex);
+	return drv;
+}
+
+void cfg80211_put_dev(struct cfg80211_registered_device *drv)
+{
+	BUG_ON(IS_ERR(drv));
+	mutex_unlock(&drv->mtx);
+}
+
+int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
+			char *newname)
+{
+	int idx, taken = -1, result, digits;
+
+	/* prohibit calling the thing phy%d when %d is not its number */
+	sscanf(newname, PHY_NAME "%d%n", &idx, &taken);
+	if (taken == strlen(newname) && idx != rdev->idx) {
+		/* count number of places needed to print idx */
+		digits = 1;
+		while (idx /= 10)
+			digits++;
+		/*
+		 * deny the name if it is phy<idx> where <idx> is printed
+		 * without leading zeroes. taken == strlen(newname) here
+		 */
+		if (taken == strlen(PHY_NAME) + digits)
+			return -EINVAL;
+	}
+
+	/* this will check for collisions */
+	result = device_rename(&rdev->wiphy.dev, newname);
+	if (result)
+		return result;
+
+	if (!debugfs_rename(rdev->wiphy.debugfsdir->d_parent,
+			    rdev->wiphy.debugfsdir,
+			    rdev->wiphy.debugfsdir->d_parent,
+			    newname))
+		printk(KERN_ERR "cfg80211: failed to rename debugfs dir to %s!\n",
+		       newname);
+
+	nl80211_notify_dev_rename(rdev);
+
+	return 0;
+}
+
 /* exported functions */
 
 struct wiphy *wiphy_new(struct cfg80211_ops *ops, int sizeof_priv)
@@ -204,10 +345,16 @@ static int cfg80211_init(void)
 	if (err)
 		goto out_fail_notifier;
 
+	err = nl80211_init();
+	if (err)
+		goto out_fail_nl80211;
+
 	ieee80211_debugfs_dir = debugfs_create_dir("ieee80211", NULL);
 
 	return 0;
 
+out_fail_nl80211:
+	unregister_netdevice_notifier(&cfg80211_netdev_notifier);
 out_fail_notifier:
 	wiphy_sysfs_exit();
 out_fail_sysfs:
@@ -218,6 +365,7 @@ subsys_initcall(cfg80211_init);
 static void cfg80211_exit(void)
 {
 	debugfs_remove(ieee80211_debugfs_dir);
+	nl80211_exit();
 	unregister_netdevice_notifier(&cfg80211_netdev_notifier);
 	wiphy_sysfs_exit();
 }
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 158db1edb92a..eb0f846b40df 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -43,7 +43,39 @@ struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *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 */
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
new file mode 100644
index 000000000000..48b0d453e4e1
--- /dev/null
+++ b/net/wireless/nl80211.c
@@ -0,0 +1,431 @@
+/*
+ * This is the new netlink-based wireless configuration interface.
+ *
+ * Copyright 2006, 2007	Johannes Berg <johannes@sipsolutions.net>
+ */
+
+#include <linux/if.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/mutex.h>
+#include <linux/list.h>
+#include <linux/if_ether.h>
+#include <linux/ieee80211.h>
+#include <linux/nl80211.h>
+#include <linux/rtnetlink.h>
+#include <linux/netlink.h>
+#include <net/genetlink.h>
+#include <net/cfg80211.h>
+#include "core.h"
+#include "nl80211.h"
+
+/* the netlink family */
+static struct genl_family nl80211_fam = {
+	.id = GENL_ID_GENERATE,	/* don't bother with a hardcoded ID */
+	.name = "nl80211",	/* have users key off the name instead */
+	.hdrsize = 0,		/* no private header */
+	.version = 1,		/* no particular meaning now */
+	.maxattr = NL80211_ATTR_MAX,
+};
+
+/* internal helper: get drv and dev */
+static int get_drv_dev_by_info_ifindex(struct genl_info *info,
+				       struct cfg80211_registered_device **drv,
+				       struct net_device **dev)
+{
+	int ifindex;
+
+	if (!info->attrs[NL80211_ATTR_IFINDEX])
+		return -EINVAL;
+
+	ifindex = nla_get_u32(info->attrs[NL80211_ATTR_IFINDEX]);
+	*dev = dev_get_by_index(&init_net, ifindex);
+	if (!*dev)
+		return -ENODEV;
+
+	*drv = cfg80211_get_dev_from_ifindex(ifindex);
+	if (IS_ERR(*drv)) {
+		dev_put(*dev);
+		return PTR_ERR(*drv);
+	}
+
+	return 0;
+}
+
+/* policy for the attributes */
+static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
+	[NL80211_ATTR_WIPHY] = { .type = NLA_U32 },
+	[NL80211_ATTR_WIPHY_NAME] = { .type = NLA_NUL_STRING,
+				      .len = BUS_ID_SIZE-1 },
+
+	[NL80211_ATTR_IFTYPE] = { .type = NLA_U32 },
+	[NL80211_ATTR_IFINDEX] = { .type = NLA_U32 },
+	[NL80211_ATTR_IFNAME] = { .type = NLA_NUL_STRING, .len = IFNAMSIZ-1 },
+};
+
+/* message building helper */
+static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
+				   int flags, u8 cmd)
+{
+	/* since there is no private header just add the generic one */
+	return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
+}
+
+/* netlink command implementations */
+
+static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
+			      struct cfg80211_registered_device *dev)
+{
+	void *hdr;
+
+	hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_WIPHY);
+	if (!hdr)
+		return -1;
+
+	NLA_PUT_U32(msg, NL80211_ATTR_WIPHY, dev->idx);
+	NLA_PUT_STRING(msg, NL80211_ATTR_WIPHY_NAME, wiphy_name(&dev->wiphy));
+	return genlmsg_end(msg, hdr);
+
+ nla_put_failure:
+	return genlmsg_cancel(msg, hdr);
+}
+
+static int nl80211_dump_wiphy(struct sk_buff *skb, struct netlink_callback *cb)
+{
+	int idx = 0;
+	int start = cb->args[0];
+	struct cfg80211_registered_device *dev;
+
+	mutex_lock(&cfg80211_drv_mutex);
+	list_for_each_entry(dev, &cfg80211_drv_list, list) {
+		if (++idx < start)
+			continue;
+		if (nl80211_send_wiphy(skb, NETLINK_CB(cb->skb).pid,
+				       cb->nlh->nlmsg_seq, NLM_F_MULTI,
+				       dev) < 0)
+			break;
+	}
+	mutex_unlock(&cfg80211_drv_mutex);
+
+	cb->args[0] = idx;
+
+	return skb->len;
+}
+
+static int nl80211_get_wiphy(struct sk_buff *skb, struct genl_info *info)
+{
+	struct sk_buff *msg;
+	struct cfg80211_registered_device *dev;
+
+	dev = cfg80211_get_dev_from_info(info);
+	if (IS_ERR(dev))
+		return PTR_ERR(dev);
+
+	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	if (!msg)
+		goto out_err;
+
+	if (nl80211_send_wiphy(msg, info->snd_pid, info->snd_seq, 0, dev) < 0)
+		goto out_free;
+
+	cfg80211_put_dev(dev);
+
+	return genlmsg_unicast(msg, info->snd_pid);
+
+ out_free:
+	nlmsg_free(msg);
+ out_err:
+	cfg80211_put_dev(dev);
+	return -ENOBUFS;
+}
+
+static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info)
+{
+	struct cfg80211_registered_device *rdev;
+	int result;
+
+	if (!info->attrs[NL80211_ATTR_WIPHY_NAME])
+		return -EINVAL;
+
+	rdev = cfg80211_get_dev_from_info(info);
+	if (IS_ERR(rdev))
+		return PTR_ERR(rdev);
+
+	result = cfg80211_dev_rename(rdev, nla_data(info->attrs[NL80211_ATTR_WIPHY_NAME]));
+
+	cfg80211_put_dev(rdev);
+	return result;
+}
+
+
+static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
+			      struct net_device *dev)
+{
+	void *hdr;
+
+	hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_INTERFACE);
+	if (!hdr)
+		return -1;
+
+	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex);
+	NLA_PUT_STRING(msg, NL80211_ATTR_IFNAME, dev->name);
+	/* TODO: interface type */
+	return genlmsg_end(msg, hdr);
+
+ nla_put_failure:
+	return genlmsg_cancel(msg, hdr);
+}
+
+static int nl80211_dump_interface(struct sk_buff *skb, struct netlink_callback *cb)
+{
+	int wp_idx = 0;
+	int if_idx = 0;
+	int wp_start = cb->args[0];
+	int if_start = cb->args[1];
+	struct cfg80211_registered_device *dev;
+	struct wireless_dev *wdev;
+
+	mutex_lock(&cfg80211_drv_mutex);
+	list_for_each_entry(dev, &cfg80211_drv_list, list) {
+		if (++wp_idx < wp_start)
+			continue;
+		if_idx = 0;
+
+		mutex_lock(&dev->devlist_mtx);
+		list_for_each_entry(wdev, &dev->netdev_list, list) {
+			if (++if_idx < if_start)
+				continue;
+			if (nl80211_send_iface(skb, NETLINK_CB(cb->skb).pid,
+					       cb->nlh->nlmsg_seq, NLM_F_MULTI,
+					       wdev->netdev) < 0)
+				break;
+		}
+		mutex_unlock(&dev->devlist_mtx);
+	}
+	mutex_unlock(&cfg80211_drv_mutex);
+
+	cb->args[0] = wp_idx;
+	cb->args[1] = if_idx;
+
+	return skb->len;
+}
+
+static int nl80211_get_interface(struct sk_buff *skb, struct genl_info *info)
+{
+	struct sk_buff *msg;
+	struct cfg80211_registered_device *dev;
+	struct net_device *netdev;
+	int err;
+
+	err = get_drv_dev_by_info_ifindex(info, &dev, &netdev);
+	if (err)
+		return err;
+
+	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	if (!msg)
+		goto out_err;
+
+	if (nl80211_send_iface(msg, info->snd_pid, info->snd_seq, 0, netdev) < 0)
+		goto out_free;
+
+	dev_put(netdev);
+	cfg80211_put_dev(dev);
+
+	return genlmsg_unicast(msg, info->snd_pid);
+
+ out_free:
+	nlmsg_free(msg);
+ out_err:
+	dev_put(netdev);
+	cfg80211_put_dev(dev);
+	return -ENOBUFS;
+}
+
+static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info)
+{
+	struct cfg80211_registered_device *drv;
+	int err, ifindex;
+	enum nl80211_iftype type;
+	struct net_device *dev;
+
+	if (info->attrs[NL80211_ATTR_IFTYPE]) {
+		type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
+		if (type > NL80211_IFTYPE_MAX)
+			return -EINVAL;
+	} else
+		return -EINVAL;
+
+	err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
+	if (err)
+		return err;
+	ifindex = dev->ifindex;
+	dev_put(dev);
+
+	if (!drv->ops->change_virtual_intf) {
+		err = -EOPNOTSUPP;
+		goto unlock;
+	}
+
+	rtnl_lock();
+	err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex, type);
+	rtnl_unlock();
+
+ unlock:
+	cfg80211_put_dev(drv);
+	return err;
+}
+
+static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info)
+{
+	struct cfg80211_registered_device *drv;
+	int err;
+	enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED;
+
+	if (!info->attrs[NL80211_ATTR_IFNAME])
+		return -EINVAL;
+
+	if (info->attrs[NL80211_ATTR_IFTYPE]) {
+		type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]);
+		if (type > NL80211_IFTYPE_MAX)
+			return -EINVAL;
+	}
+
+	drv = cfg80211_get_dev_from_info(info);
+	if (IS_ERR(drv))
+		return PTR_ERR(drv);
+
+	if (!drv->ops->add_virtual_intf) {
+		err = -EOPNOTSUPP;
+		goto unlock;
+	}
+
+	rtnl_lock();
+	err = drv->ops->add_virtual_intf(&drv->wiphy,
+		nla_data(info->attrs[NL80211_ATTR_IFNAME]), type);
+	rtnl_unlock();
+
+ unlock:
+	cfg80211_put_dev(drv);
+	return err;
+}
+
+static int nl80211_del_interface(struct sk_buff *skb, struct genl_info *info)
+{
+	struct cfg80211_registered_device *drv;
+	int ifindex, err;
+	struct net_device *dev;
+
+	err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
+	if (err)
+		return err;
+	ifindex = dev->ifindex;
+	dev_put(dev);
+
+	if (!drv->ops->del_virtual_intf) {
+		err = -EOPNOTSUPP;
+		goto out;
+	}
+
+	rtnl_lock();
+	err = drv->ops->del_virtual_intf(&drv->wiphy, ifindex);
+	rtnl_unlock();
+
+ out:
+	cfg80211_put_dev(drv);
+	return err;
+}
+
+static struct genl_ops nl80211_ops[] = {
+	{
+		.cmd = NL80211_CMD_GET_WIPHY,
+		.doit = nl80211_get_wiphy,
+		.dumpit = nl80211_dump_wiphy,
+		.policy = nl80211_policy,
+		/* can be retrieved by unprivileged users */
+	},
+	{
+		.cmd = NL80211_CMD_SET_WIPHY,
+		.doit = nl80211_set_wiphy,
+		.policy = nl80211_policy,
+		.flags = GENL_ADMIN_PERM,
+	},
+	{
+		.cmd = NL80211_CMD_GET_INTERFACE,
+		.doit = nl80211_get_interface,
+		.dumpit = nl80211_dump_interface,
+		.policy = nl80211_policy,
+		/* can be retrieved by unprivileged users */
+	},
+	{
+		.cmd = NL80211_CMD_SET_INTERFACE,
+		.doit = nl80211_set_interface,
+		.policy = nl80211_policy,
+		.flags = GENL_ADMIN_PERM,
+	},
+	{
+		.cmd = NL80211_CMD_NEW_INTERFACE,
+		.doit = nl80211_new_interface,
+		.policy = nl80211_policy,
+		.flags = GENL_ADMIN_PERM,
+	},
+	{
+		.cmd = NL80211_CMD_DEL_INTERFACE,
+		.doit = nl80211_del_interface,
+		.policy = nl80211_policy,
+		.flags = GENL_ADMIN_PERM,
+	},
+};
+
+/* multicast groups */
+static struct genl_multicast_group nl80211_config_mcgrp = {
+	.name = "config",
+};
+
+/* notification functions */
+
+void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
+{
+	struct sk_buff *msg;
+
+	msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	if (!msg)
+		return;
+
+	if (nl80211_send_wiphy(msg, 0, 0, 0, rdev) < 0) {
+		nlmsg_free(msg);
+		return;
+	}
+
+	genlmsg_multicast(msg, 0, nl80211_config_mcgrp.id, GFP_KERNEL);
+}
+
+/* initialisation/exit functions */
+
+int nl80211_init(void)
+{
+	int err, i;
+
+	err = genl_register_family(&nl80211_fam);
+	if (err)
+		return err;
+
+	for (i = 0; i < ARRAY_SIZE(nl80211_ops); i++) {
+		err = genl_register_ops(&nl80211_fam, &nl80211_ops[i]);
+		if (err)
+			goto err_out;
+	}
+
+	err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
+	if (err)
+		goto err_out;
+
+	return 0;
+ err_out:
+	genl_unregister_family(&nl80211_fam);
+	return err;
+}
+
+void nl80211_exit(void)
+{
+	genl_unregister_family(&nl80211_fam);
+}
diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h
new file mode 100644
index 000000000000..f3ea5c029aee
--- /dev/null
+++ b/net/wireless/nl80211.h
@@ -0,0 +1,24 @@
+#ifndef __NET_WIRELESS_NL80211_H
+#define __NET_WIRELESS_NL80211_H
+
+#include "core.h"
+
+#ifdef CONFIG_NL80211
+extern int nl80211_init(void);
+extern void nl80211_exit(void);
+extern void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev);
+#else
+static inline int nl80211_init(void)
+{
+	return 0;
+}
+static inline void nl80211_exit(void)
+{
+}
+static inline void nl80211_notify_dev_rename(
+	struct cfg80211_registered_device *rdev)
+{
+}
+#endif /* CONFIG_NL80211 */
+
+#endif /* __NET_WIRELESS_NL80211_H */
diff --git a/net/wireless/radiotap.c b/net/wireless/radiotap.c
index 68c11d099917..28fbd0b0b568 100644
--- a/net/wireless/radiotap.c
+++ b/net/wireless/radiotap.c
@@ -161,7 +161,11 @@ int ieee80211_radiotap_iterator_next(
 		[IEEE80211_RADIOTAP_DBM_TX_POWER] = 0x11,
 		[IEEE80211_RADIOTAP_ANTENNA] = 0x11,
 		[IEEE80211_RADIOTAP_DB_ANTSIGNAL] = 0x11,
-		[IEEE80211_RADIOTAP_DB_ANTNOISE] = 0x11
+		[IEEE80211_RADIOTAP_DB_ANTNOISE] = 0x11,
+		[IEEE80211_RADIOTAP_RX_FLAGS] = 0x22,
+		[IEEE80211_RADIOTAP_TX_FLAGS] = 0x22,
+		[IEEE80211_RADIOTAP_RTS_RETRIES] = 0x11,
+		[IEEE80211_RADIOTAP_DATA_RETRIES] = 0x11,
 		/*
 		 * add more here as they are defined in
 		 * include/net/ieee80211_radiotap.h
diff --git a/net/wireless/wext.c b/net/wireless/wext.c
index d6aaf65192e9..85e5f9dd0d8e 100644
--- a/net/wireless/wext.c
+++ b/net/wireless/wext.c
@@ -93,6 +93,7 @@
 #include <linux/if_arp.h>		/* ARPHRD_ETHER */
 #include <linux/etherdevice.h>		/* compare_ether_addr */
 #include <linux/interrupt.h>
+#include <net/net_namespace.h>
 
 #include <linux/wireless.h>		/* Pretty obvious */
 #include <net/iw_handler.h>		/* New driver API */
@@ -672,7 +673,26 @@ static const struct seq_operations wireless_seq_ops = {
 
 static int wireless_seq_open(struct inode *inode, struct file *file)
 {
-	return seq_open(file, &wireless_seq_ops);
+	struct seq_file *seq;
+	int res;
+	res = seq_open(file, &wireless_seq_ops);
+	if (!res) {
+		seq = file->private_data;
+		seq->private = get_proc_net(inode);
+		if (!seq->private) {
+			seq_release(inode, file);
+			res = -ENXIO;
+		}
+	}
+	return res;
+}
+
+static int wireless_seq_release(struct inode *inode, struct file *file)
+{
+	struct seq_file *seq = file->private_data;
+	struct net *net = seq->private;
+	put_net(net);
+	return seq_release(inode, file);
 }
 
 static const struct file_operations wireless_seq_fops = {
@@ -680,17 +700,22 @@ static const struct file_operations wireless_seq_fops = {
 	.open    = wireless_seq_open,
 	.read    = seq_read,
 	.llseek  = seq_lseek,
-	.release = seq_release,
+	.release = wireless_seq_release,
 };
 
-int __init wext_proc_init(void)
+int wext_proc_init(struct net *net)
 {
 	/* Create /proc/net/wireless entry */
-	if (!proc_net_fops_create("wireless", S_IRUGO, &wireless_seq_fops))
+	if (!proc_net_fops_create(net, "wireless", S_IRUGO, &wireless_seq_fops))
 		return -ENOMEM;
 
 	return 0;
 }
+
+void wext_proc_exit(struct net *net)
+{
+	proc_net_remove(net, "wireless");
+}
 #endif	/* CONFIG_PROC_FS */
 
 /************************** IOCTL SUPPORT **************************/
@@ -1010,7 +1035,7 @@ static int ioctl_private_call(struct net_device *dev, struct ifreq *ifr,
  * Main IOCTl dispatcher.
  * Check the type of IOCTL and call the appropriate wrapper...
  */
-static int wireless_process_ioctl(struct ifreq *ifr, unsigned int cmd)
+static int wireless_process_ioctl(struct net *net, struct ifreq *ifr, unsigned int cmd)
 {
 	struct net_device *dev;
 	iw_handler	handler;
@@ -1019,7 +1044,7 @@ static int wireless_process_ioctl(struct ifreq *ifr, unsigned int cmd)
 	 * The copy_to/from_user() of ifr is also dealt with in there */
 
 	/* Make sure the device exist */
-	if ((dev = __dev_get_by_name(ifr->ifr_name)) == NULL)
+	if ((dev = __dev_get_by_name(net, ifr->ifr_name)) == NULL)
 		return -ENODEV;
 
 	/* A bunch of special cases, then the generic case...
@@ -1053,7 +1078,7 @@ static int wireless_process_ioctl(struct ifreq *ifr, unsigned int cmd)
 }
 
 /* entry point from dev ioctl */
-int wext_handle_ioctl(struct ifreq *ifr, unsigned int cmd,
+int wext_handle_ioctl(struct net *net, struct ifreq *ifr, unsigned int cmd,
 		      void __user *arg)
 {
 	int ret;
@@ -1065,9 +1090,9 @@ int wext_handle_ioctl(struct ifreq *ifr, unsigned int cmd,
 	    && !capable(CAP_NET_ADMIN))
 		return -EPERM;
 
-	dev_load(ifr->ifr_name);
+	dev_load(net, ifr->ifr_name);
 	rtnl_lock();
-	ret = wireless_process_ioctl(ifr, cmd);
+	ret = wireless_process_ioctl(net, ifr, cmd);
 	rtnl_unlock();
 	if (IW_IS_GET(cmd) && copy_to_user(arg, ifr, sizeof(struct ifreq)))
 		return -EFAULT;
@@ -1129,10 +1154,12 @@ static int rtnetlink_fill_iwinfo(struct sk_buff *skb, struct net_device *dev,
 {
 	struct ifinfomsg *r;
 	struct nlmsghdr  *nlh;
-	unsigned char	 *b = skb_tail_pointer(skb);
 
-	nlh = NLMSG_PUT(skb, 0, 0, type, sizeof(*r));
-	r = NLMSG_DATA(nlh);
+	nlh = nlmsg_put(skb, 0, 0, type, sizeof(*r), 0);
+	if (nlh == NULL)
+		return -EMSGSIZE;
+
+	r = nlmsg_data(nlh);
 	r->ifi_family = AF_UNSPEC;
 	r->__ifi_pad = 0;
 	r->ifi_type = dev->type;
@@ -1141,15 +1168,13 @@ static int rtnetlink_fill_iwinfo(struct sk_buff *skb, struct net_device *dev,
 	r->ifi_change = 0;	/* Wireless changes don't affect those flags */
 
 	/* Add the wireless events in the netlink packet */
-	RTA_PUT(skb, IFLA_WIRELESS, event_len, event);
+	NLA_PUT(skb, IFLA_WIRELESS, event_len, event);
 
-	nlh->nlmsg_len = skb_tail_pointer(skb) - b;
-	return skb->len;
+	return nlmsg_end(skb, nlh);
 
-nlmsg_failure:
-rtattr_failure:
-	nlmsg_trim(skb, b);
-	return -1;
+nla_put_failure:
+	nlmsg_cancel(skb, nlh);
+	return -EMSGSIZE;
 }
 
 /* ---------------------------------------------------------------- */
@@ -1162,17 +1187,19 @@ rtattr_failure:
 static void rtmsg_iwinfo(struct net_device *dev, char *event, int event_len)
 {
 	struct sk_buff *skb;
-	int size = NLMSG_GOODSIZE;
+	int err;
 
-	skb = alloc_skb(size, GFP_ATOMIC);
+	skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
 	if (!skb)
 		return;
 
-	if (rtnetlink_fill_iwinfo(skb, dev, RTM_NEWLINK,
-				  event, event_len) < 0) {
+	err = rtnetlink_fill_iwinfo(skb, dev, RTM_NEWLINK, event, event_len);
+	if (err < 0) {
+		WARN_ON(err == -EMSGSIZE);
 		kfree_skb(skb);
 		return;
 	}
+
 	NETLINK_CB(skb).dst_group = RTNLGRP_LINK;
 	skb_queue_tail(&wireless_nlevent_queue, skb);
 	tasklet_schedule(&wireless_nlevent_tasklet);