SELINUX: add /sys/fs/selinux mount point to put selinuxfs
In the interest of keeping userspace from having to create new root
filesystems all the time, let's follow the lead of the other in-kernel
filesystems and provide a proper mount point for it in sysfs.
For selinuxfs, this mount point should be in /sys/fs/selinux/
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: James Morris <jmorris@namei.org>
Cc: Eric Paris <eparis@parisplace.org>
Cc: Lennart Poettering <mzerqung@0pointer.de>
Cc: Daniel J Walsh <dwalsh@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
[include kobject.h - Eric Paris]
[use selinuxfs_obj throughout - Eric Paris]
Signed-off-by: Eric Paris <eparis@redhat.com>
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index 973f5a4..fde4e9d 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -28,6 +28,7 @@
#include <linux/percpu.h>
#include <linux/audit.h>
#include <linux/uaccess.h>
+#include <linux/kobject.h>
/* selinuxfs pseudo filesystem for exporting the security policy API.
Based on the proc code and the fs/nfsd/nfsctl.c code. */
@@ -1909,6 +1910,7 @@
};
struct vfsmount *selinuxfs_mount;
+static struct kobject *selinuxfs_kobj;
static int __init init_sel_fs(void)
{
@@ -1916,9 +1918,16 @@
if (!selinux_enabled)
return 0;
+
+ selinuxfs_kobj = kobject_create_and_add("selinux", fs_kobj);
+ if (!selinuxfs_kobj)
+ return -ENOMEM;
+
err = register_filesystem(&sel_fs_type);
- if (err)
+ if (err) {
+ kobject_put(selinuxfs_kobj);
return err;
+ }
selinuxfs_mount = kern_mount(&sel_fs_type);
if (IS_ERR(selinuxfs_mount)) {
@@ -1935,6 +1944,7 @@
#ifdef CONFIG_SECURITY_SELINUX_DISABLE
void exit_sel_fs(void)
{
+ kobject_put(selinuxfs_kobj);
unregister_filesystem(&sel_fs_type);
}
#endif