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>
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@ -28,6 +28,7 @@
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#include <linux/percpu.h>
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#include <linux/audit.h>
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#include <linux/uaccess.h>
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#include <linux/kobject.h>
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/* selinuxfs pseudo filesystem for exporting the security policy API.
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Based on the proc code and the fs/nfsd/nfsctl.c code. */
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@ -1909,6 +1910,7 @@ static struct file_system_type sel_fs_type = {
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};
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struct vfsmount *selinuxfs_mount;
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static struct kobject *selinuxfs_kobj;
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static int __init init_sel_fs(void)
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{
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@ -1916,9 +1918,16 @@ static int __init init_sel_fs(void)
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if (!selinux_enabled)
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return 0;
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selinuxfs_kobj = kobject_create_and_add("selinux", fs_kobj);
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if (!selinuxfs_kobj)
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return -ENOMEM;
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err = register_filesystem(&sel_fs_type);
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if (err)
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if (err) {
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kobject_put(selinuxfs_kobj);
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return err;
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}
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selinuxfs_mount = kern_mount(&sel_fs_type);
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if (IS_ERR(selinuxfs_mount)) {
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@ -1935,6 +1944,7 @@ __initcall(init_sel_fs);
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#ifdef CONFIG_SECURITY_SELINUX_DISABLE
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void exit_sel_fs(void)
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{
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kobject_put(selinuxfs_kobj);
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unregister_filesystem(&sel_fs_type);
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}
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#endif
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