struct sockaddr_llc *addr = llc_ui_skb_cb(skb);
struct sockaddr_llc *addr;
void llc_save_primitive(struct sock *sk, struct sk_buff* skb, u8 prim){	struct sockaddr_llc *addr = llc_ui_skb_cb(skb);       /* save primitive for use by the user. */	addr->sllc_family = sk->sk_family;	addr->sllc_arphrd = skb->dev->type;	addr->sllc_test   = prim == LLC_TEST_PRIM;	addr->sllc_xid    = prim == LLC_XID_PRIM;	addr->sllc_ua     = prim == LLC_DATAUNIT_PRIM;	llc_pdu_decode_sa(skb, addr->sllc_mac);	llc_pdu_decode_ssap(skb, &addr->sllc_sap);}