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Message-ID: <1281023115.4058.11.camel@jlt3.sipsolutions.net>
Date: Thu, 05 Aug 2010 17:45:15 +0200
From: Johannes Berg <johannes@...solutions.net>
To: John Linville <linville@...driver.com>
Cc: linux-wireless <linux-wireless@...r.kernel.org>,
netdev <netdev@...r.kernel.org>,
"Eric W. Biederman" <ebiederm@...ssion.com>
Subject: [PATCH] cfg80211: support sysfs namespaces
From: Johannes Berg <johannes.berg@...el.com>
Enable using network namespaces with
wireless devices even when sysfs is
enabled using the same infrastructure
that was built for netdevs.
Signed-off-by: Johannes Berg <johannes.berg@...el.com>
---
NB: This generates a harmless gcc warning, I submitted
a patch to fix it here:
http://thread.gmane.org/gmane.linux.kernel/1019330
include/linux/netdevice.h | 2 ++
net/core/net-sysfs.c | 3 ++-
net/wireless/core.c | 7 ++++++-
net/wireless/sysfs.c | 9 +++++++++
4 files changed, 19 insertions(+), 2 deletions(-)
--- wireless-testing.orig/net/core/net-sysfs.c 2010-08-05 17:33:47.000000000 +0200
+++ wireless-testing/net/core/net-sysfs.c 2010-08-05 17:38:27.000000000 +0200
@@ -789,12 +789,13 @@ static const void *net_netlink_ns(struct
return sock_net(sk);
}
-static struct kobj_ns_type_operations net_ns_type_operations = {
+struct kobj_ns_type_operations net_ns_type_operations = {
.type = KOBJ_NS_TYPE_NET,
.current_ns = net_current_ns,
.netlink_ns = net_netlink_ns,
.initial_ns = net_initial_ns,
};
+EXPORT_SYMBOL_GPL(net_ns_type_operations);
static void net_kobj_ns_exit(struct net *net)
{
--- wireless-testing.orig/net/wireless/sysfs.c 2010-08-05 17:33:47.000000000 +0200
+++ wireless-testing/net/wireless/sysfs.c 2010-08-05 17:39:11.000000000 +0200
@@ -110,6 +110,13 @@ static int wiphy_resume(struct device *d
return ret;
}
+static const void *wiphy_namespace(struct device *d)
+{
+ struct wiphy *wiphy = container_of(d, struct wiphy, dev);
+
+ return wiphy_net(wiphy);
+}
+
struct class ieee80211_class = {
.name = "ieee80211",
.owner = THIS_MODULE,
@@ -120,6 +127,8 @@ struct class ieee80211_class = {
#endif
.suspend = wiphy_suspend,
.resume = wiphy_resume,
+ .ns_type = &net_ns_type_operations,
+ .namespace = wiphy_namespace,
};
int wiphy_sysfs_init(void)
--- wireless-testing.orig/net/wireless/core.c 2010-08-05 17:33:47.000000000 +0200
+++ wireless-testing/net/wireless/core.c 2010-08-05 17:38:27.000000000 +0200
@@ -253,11 +253,16 @@ int cfg80211_switch_netns(struct cfg8021
WARN_ON(err);
wdev->netdev->features |= NETIF_F_NETNS_LOCAL;
}
+
+ return err;
}
wiphy_net_set(&rdev->wiphy, net);
- return err;
+ err = device_rename(&rdev->wiphy.dev, dev_name(&rdev->wiphy.dev));
+ WARN_ON(err);
+
+ return 0;
}
static void cfg80211_rfkill_poll(struct rfkill *rfkill, void *data)
--- wireless-testing.orig/include/linux/netdevice.h 2010-08-05 17:13:50.000000000 +0200
+++ wireless-testing/include/linux/netdevice.h 2010-08-05 17:39:02.000000000 +0200
@@ -2171,6 +2171,8 @@ extern void dev_seq_stop(struct seq_file
extern int netdev_class_create_file(struct class_attribute *class_attr);
extern void netdev_class_remove_file(struct class_attribute *class_attr);
+extern struct kobj_ns_type_operations net_ns_type_operations;
+
extern char *netdev_drivername(const struct net_device *dev, char *buffer, int len);
extern void linkwatch_run_queue(void);
--
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