54 	struct sk_buff *skb;  in llc_alloc_frame()  local
57 	skb = alloc_skb(hlen + data_size, GFP_ATOMIC);  in llc_alloc_frame()
59 	if (skb) {  in llc_alloc_frame()
60 		skb_reset_mac_header(skb);  in llc_alloc_frame()
61 		skb_reserve(skb, hlen);  in llc_alloc_frame()
62 		skb_reset_network_header(skb);  in llc_alloc_frame()
63 		skb_reset_transport_header(skb);  in llc_alloc_frame()
64 		skb->protocol = htons(ETH_P_802_2);  in llc_alloc_frame()
65 		skb->dev      = dev;  in llc_alloc_frame()
67 			skb_set_owner_w(skb, sk);  in llc_alloc_frame()
69 	return skb;  in llc_alloc_frame()
72 void llc_save_primitive(struct sock *sk, struct sk_buff* skb, u8 prim)  in llc_save_primitive()  argument
77 	addr		  = llc_ui_skb_cb(skb);  in llc_save_primitive()
81 	addr->sllc_arphrd = skb->dev->type;  in llc_save_primitive()
85 	llc_pdu_decode_sa(skb, addr->sllc_mac);  in llc_save_primitive()
86 	llc_pdu_decode_ssap(skb, &addr->sllc_sap);  in llc_save_primitive()
94 void llc_sap_rtn_pdu(struct llc_sap *sap, struct sk_buff *skb)  in llc_sap_rtn_pdu()  argument
96 	struct llc_sap_state_ev *ev = llc_sap_ev(skb);  in llc_sap_rtn_pdu()
97 	struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);  in llc_sap_rtn_pdu()
120 						      struct sk_buff* skb)  in llc_find_sap_trans()  argument
131 		if (!next_trans[i]->ev(sap, skb)) {  in llc_find_sap_trans()
149 				      struct sk_buff *skb)  in llc_exec_sap_trans_actions()  argument
155 		if ((*next_action)(sap, skb))  in llc_exec_sap_trans_actions()
169 static int llc_sap_next_state(struct llc_sap *sap, struct sk_buff *skb)  in llc_sap_next_state()  argument
176 	trans = llc_find_sap_trans(sap, skb);  in llc_sap_next_state()
184 	rc = llc_exec_sap_trans_actions(sap, trans, skb);  in llc_sap_next_state()
204 static void llc_sap_state_process(struct llc_sap *sap, struct sk_buff *skb)  in llc_sap_state_process()  argument
206 	struct llc_sap_state_ev *ev = llc_sap_ev(skb);  in llc_sap_state_process()
213 	skb_get(skb);  in llc_sap_state_process()
215 	llc_sap_next_state(sap, skb);  in llc_sap_state_process()
217 		if (skb->sk->sk_state == TCP_LISTEN)  in llc_sap_state_process()
218 			kfree_skb(skb);  in llc_sap_state_process()
220 			llc_save_primitive(skb->sk, skb, ev->prim);  in llc_sap_state_process()
223 			if (sock_queue_rcv_skb(skb->sk, skb))  in llc_sap_state_process()
224 				kfree_skb(skb);  in llc_sap_state_process()
227 	kfree_skb(skb);  in llc_sap_state_process()
241 				 struct sk_buff *skb, u8 *dmac, u8 dsap)  in llc_build_and_send_test_pkt()  argument
243 	struct llc_sap_state_ev *ev = llc_sap_ev(skb);  in llc_build_and_send_test_pkt()
247 	memcpy(ev->saddr.mac, skb->dev->dev_addr, IFHWADDRLEN);  in llc_build_and_send_test_pkt()
253 	llc_sap_state_process(sap, skb);  in llc_build_and_send_test_pkt()
266 void llc_build_and_send_xid_pkt(struct llc_sap *sap, struct sk_buff *skb,  in llc_build_and_send_xid_pkt()  argument
269 	struct llc_sap_state_ev *ev = llc_sap_ev(skb);  in llc_build_and_send_xid_pkt()
273 	memcpy(ev->saddr.mac, skb->dev->dev_addr, IFHWADDRLEN);  in llc_build_and_send_xid_pkt()
279 	llc_sap_state_process(sap, skb);  in llc_build_and_send_xid_pkt()
289 static void llc_sap_rcv(struct llc_sap *sap, struct sk_buff *skb,  in llc_sap_rcv()  argument
292 	struct llc_sap_state_ev *ev = llc_sap_ev(skb);  in llc_sap_rcv()
296 	skb->sk = sk;  in llc_sap_rcv()
297 	llc_sap_state_process(sap, skb);  in llc_sap_rcv()
341 			  struct sk_buff *skb)  in llc_sap_mcast()  argument
357 		if (llc->dev != skb->dev)  in llc_sap_mcast()
360 		skb1 = skb_clone(skb, GFP_ATOMIC);  in llc_sap_mcast()
372 void llc_sap_handler(struct llc_sap *sap, struct sk_buff *skb)  in llc_sap_handler()  argument
376 	llc_pdu_decode_da(skb, laddr.mac);  in llc_sap_handler()
377 	llc_pdu_decode_dsap(skb, &laddr.lsap);  in llc_sap_handler()
380 		llc_sap_mcast(sap, &laddr, skb);  in llc_sap_handler()
381 		kfree_skb(skb);  in llc_sap_handler()
385 			llc_sap_rcv(sap, skb, sk);  in llc_sap_handler()
388 			kfree_skb(skb);  in llc_sap_handler()