51 	struct sk_buff *skb;  in llc_alloc_frame()  local
54 	skb = alloc_skb(hlen + data_size, GFP_ATOMIC);  in llc_alloc_frame()
56 	if (skb) {  in llc_alloc_frame()
57 		skb_reset_mac_header(skb);  in llc_alloc_frame()
58 		skb_reserve(skb, hlen);  in llc_alloc_frame()
59 		skb_reset_network_header(skb);  in llc_alloc_frame()
60 		skb_reset_transport_header(skb);  in llc_alloc_frame()
61 		skb->protocol = htons(ETH_P_802_2);  in llc_alloc_frame()
62 		skb->dev      = dev;  in llc_alloc_frame()
64 			skb_set_owner_w(skb, sk);  in llc_alloc_frame()
66 	return skb;  in llc_alloc_frame()
69 void llc_save_primitive(struct sock *sk, struct sk_buff *skb, u8 prim)  in llc_save_primitive()  argument
74 	addr		  = llc_ui_skb_cb(skb);  in llc_save_primitive()
78 	addr->sllc_arphrd = skb->dev->type;  in llc_save_primitive()
82 	llc_pdu_decode_sa(skb, addr->sllc_mac);  in llc_save_primitive()
83 	llc_pdu_decode_ssap(skb, &addr->sllc_sap);  in llc_save_primitive()
91 void llc_sap_rtn_pdu(struct llc_sap *sap, struct sk_buff *skb)  in llc_sap_rtn_pdu()  argument
93 	struct llc_sap_state_ev *ev = llc_sap_ev(skb);  in llc_sap_rtn_pdu()
94 	struct llc_pdu_un *pdu = llc_pdu_un_hdr(skb);  in llc_sap_rtn_pdu()
117 						      struct sk_buff *skb)  in llc_find_sap_trans()  argument
128 		if (!next_trans[i]->ev(sap, skb)) {  in llc_find_sap_trans()
146 				      struct sk_buff *skb)  in llc_exec_sap_trans_actions()  argument
152 		if ((*next_action)(sap, skb))  in llc_exec_sap_trans_actions()
166 static int llc_sap_next_state(struct llc_sap *sap, struct sk_buff *skb)  in llc_sap_next_state()  argument
173 	trans = llc_find_sap_trans(sap, skb);  in llc_sap_next_state()
181 	rc = llc_exec_sap_trans_actions(sap, trans, skb);  in llc_sap_next_state()
201 static void llc_sap_state_process(struct llc_sap *sap, struct sk_buff *skb)  in llc_sap_state_process()  argument
203 	struct llc_sap_state_ev *ev = llc_sap_ev(skb);  in llc_sap_state_process()
210 	skb_get(skb);  in llc_sap_state_process()
212 	llc_sap_next_state(sap, skb);  in llc_sap_state_process()
214 		if (skb->sk->sk_state == TCP_LISTEN)  in llc_sap_state_process()
215 			kfree_skb(skb);  in llc_sap_state_process()
217 			llc_save_primitive(skb->sk, skb, ev->prim);  in llc_sap_state_process()
220 			if (sock_queue_rcv_skb(skb->sk, skb))  in llc_sap_state_process()
221 				kfree_skb(skb);  in llc_sap_state_process()
224 	kfree_skb(skb);  in llc_sap_state_process()
238 				 struct sk_buff *skb, u8 *dmac, u8 dsap)  in llc_build_and_send_test_pkt()  argument
240 	struct llc_sap_state_ev *ev = llc_sap_ev(skb);  in llc_build_and_send_test_pkt()
244 	memcpy(ev->saddr.mac, skb->dev->dev_addr, IFHWADDRLEN);  in llc_build_and_send_test_pkt()
250 	llc_sap_state_process(sap, skb);  in llc_build_and_send_test_pkt()
263 void llc_build_and_send_xid_pkt(struct llc_sap *sap, struct sk_buff *skb,  in llc_build_and_send_xid_pkt()  argument
266 	struct llc_sap_state_ev *ev = llc_sap_ev(skb);  in llc_build_and_send_xid_pkt()
270 	memcpy(ev->saddr.mac, skb->dev->dev_addr, IFHWADDRLEN);  in llc_build_and_send_xid_pkt()
276 	llc_sap_state_process(sap, skb);  in llc_build_and_send_xid_pkt()
286 static void llc_sap_rcv(struct llc_sap *sap, struct sk_buff *skb,  in llc_sap_rcv()  argument
289 	struct llc_sap_state_ev *ev = llc_sap_ev(skb);  in llc_sap_rcv()
293 	skb->sk = sk;  in llc_sap_rcv()
294 	llc_sap_state_process(sap, skb);  in llc_sap_rcv()
354 				   const struct sk_buff *skb,  in llc_mcast_match()  argument
361 	  llc->dev == skb->dev;  in llc_mcast_match()
364 static void llc_do_mcast(struct llc_sap *sap, struct sk_buff *skb,  in llc_do_mcast()  argument
371 		skb1 = skb_clone(skb, GFP_ATOMIC);  in llc_do_mcast()
392 			  struct sk_buff *skb)  in llc_sap_mcast()  argument
397 	struct hlist_head *dev_hb = llc_sk_dev_hash(sap, skb->dev->ifindex);  in llc_sap_mcast()
404 		if (!llc_mcast_match(sap, laddr, skb, sk))  in llc_sap_mcast()
411 			llc_do_mcast(sap, skb, stack, i);  in llc_sap_mcast()
417 	llc_do_mcast(sap, skb, stack, i);  in llc_sap_mcast()
421 void llc_sap_handler(struct llc_sap *sap, struct sk_buff *skb)  in llc_sap_handler()  argument
425 	llc_pdu_decode_da(skb, laddr.mac);  in llc_sap_handler()
426 	llc_pdu_decode_dsap(skb, &laddr.lsap);  in llc_sap_handler()
429 		llc_sap_mcast(sap, &laddr, skb);  in llc_sap_handler()
430 		kfree_skb(skb);  in llc_sap_handler()
434 			llc_sap_rcv(sap, skb, sk);  in llc_sap_handler()
437 			kfree_skb(skb);  in llc_sap_handler()