@@ -19,7 +19,7 @@
#include <linux/kobject.h>
#include <linux/module.h>
#include <linux/slab.h>
-
+#include <linux/user_namespace.h>
#include <linux/socket.h>
#include <linux/skbuff.h>
#include <linux/netlink.h>
@@ -99,6 +99,21 @@ static int kobj_bcast_filter(struct sock
return 0;
}
+static int kobj_usermode_filter(struct kobject *kobj)
+{
+ const struct kobj_ns_type_operations *ops;
+
+ ops = kobj_ns_ops(kobj);
+ if (ops) {
+ const void *init_ns, *ns;
+ ns = kobj->ktype->namespace(kobj);
+ init_ns = ops->initial_ns();
+ return ns != init_ns;
+ }
+
+ return 0;
+}
+
/**
* kobject_uevent_env - send an uevent with environmental data
*
@@ -274,7 +289,7 @@ int kobject_uevent_env(struct kobject *k
#endif
/* call uevent_helper, usually only enabled during early boot */
- if (uevent_helper[0]) {
+ if (uevent_helper[0] && !kobj_usermode_filter(kobj)) {
char *argv [3];
argv [0] = uevent_helper;
This is a note to let you know that I've just added the patch titled Subject: hotplug: netns aware uevent_helper to my gregkh-2.6 tree. Its filename is hotplug-netns-aware-uevent_helper.patch This tree can be found at http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/patches/ From ebiederm@xmission.com Thu May 20 10:45:13 2010 From: "Eric W. Biederman" <ebiederm@xmission.com> Date: Tue, 4 May 2010 17:36:48 -0700 Subject: hotplug: netns aware uevent_helper To: Greg Kroah-Hartman <gregkh@suse.de> Cc: Kay Sievers <kay.sievers@vrfy.org>, linux-kernel@vger.kernel.org, Tejun Heo <tj@kernel.org>, Cornelia Huck <cornelia.huck@de.ibm.com>, Eric Dumazet <eric.dumazet@gmail.com>, Benjamin LaHaise <bcrl@lhnet.ca>, Serge Hallyn <serue@us.ibm.com>, <netdev@vger.kernel.org>, David Miller <davem@davemloft.net>, "Eric W. Biederman" <ebiederm@xmission.com> Message-ID: <1273019809-16472-5-git-send-email-ebiederm@xmission.com> From: Eric W. Biederman <ebiederm@xmission.com> It only makes sense for uevent_helper to get events in the intial namespaces. It's invocation is not per namespace and it is not clear how we could make it's invocation namespace aware. 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> --- lib/kobject_uevent.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html