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authorEric W. Biederman <ebiederm@xmission.com>2010-05-04 17:36:47 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2010-05-21 09:37:32 -0700
commit5f71a29629b4717445f8b7f5fb8f50c2d262b68e (patch)
tree75884ccf4d2ea28407643742742b0ccab5c74292 /lib
parent910a7e905f36e51a17d6e8bb4ad6dcd5ac5f1d53 (diff)
downloadlinux-2.6.34-ux500-5f71a29629b4717445f8b7f5fb8f50c2d262b68e.tar.gz
kobj: Send hotplug events in the proper namespace.
Utilize netlink_broacast_filtered to allow sending hotplug events in the proper namespace. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'lib')
-rw-r--r--lib/kobject_uevent.c22
1 files changed, 20 insertions, 2 deletions
diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c
index 9084f2550c2..239c8e83fc2 100644
--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -83,6 +83,22 @@ out:
return ret;
}
+static int kobj_bcast_filter(struct sock *dsk, struct sk_buff *skb, void *data)
+{
+ struct kobject *kobj = data;
+ const struct kobj_ns_type_operations *ops;
+
+ ops = kobj_ns_ops(kobj);
+ if (ops) {
+ const void *sock_ns, *ns;
+ ns = kobj->ktype->namespace(kobj);
+ sock_ns = ops->netlink_ns(dsk);
+ return sock_ns != ns;
+ }
+
+ return 0;
+}
+
/**
* kobject_uevent_env - send an uevent with environmental data
*
@@ -244,8 +260,10 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
}
NETLINK_CB(skb).dst_group = 1;
- retval = netlink_broadcast(uevent_sock, skb, 0, 1,
- GFP_KERNEL);
+ retval = netlink_broadcast_filtered(uevent_sock, skb,
+ 0, 1, GFP_KERNEL,
+ kobj_bcast_filter,
+ kobj);
/* ENOBUFS should be handled in userspace */
if (retval == -ENOBUFS)
retval = 0;