This patch contains SELinux changes which add support for extended Netlink
socket classes and the associated permissions nlmsg_read and nlmsg_write.

Cc: David S. Miller <davem@redhat.com>
Signed-off-by: James Morris <jmorris@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>