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>
This commit is contained in:
Greg Kroah-Hartman 2011-05-10 15:34:16 -07:00 committed by Eric Paris
parent 2875fa0083
commit 7a627e3b9a

View File

@ -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 @@ static struct file_system_type sel_fs_type = {
};
struct vfsmount *selinuxfs_mount;
static struct kobject *selinuxfs_kobj;
static int __init init_sel_fs(void)
{
@ -1916,9 +1918,16 @@ static int __init init_sel_fs(void)
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 @@ __initcall(init_sel_fs);
#ifdef CONFIG_SECURITY_SELINUX_DISABLE
void exit_sel_fs(void)
{
kobject_put(selinuxfs_kobj);
unregister_filesystem(&sel_fs_type);
}
#endif