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| author | Eric W. Biederman <ebiederm@xmission.com> | 2010-05-05 02:36:47 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-05-21 18:37:32 +0200 |
| commit | 5f71a29629b4717445f8b7f5fb8f50c2d262b68e (patch) | |
| tree | 75884ccf4d2ea28407643742742b0ccab5c74292 | |
| parent | netlink: Implment netlink_broadcast_filtered (diff) | |
| download | linux-5f71a29629b4717445f8b7f5fb8f50c2d262b68e.tar.xz linux-5f71a29629b4717445f8b7f5fb8f50c2d262b68e.zip | |
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>
| -rw-r--r-- | lib/kobject_uevent.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c index 9084f2550c2a..239c8e83fc28 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; |