net/wan/hdlc_ppp.c

66 	u16 pid;		/* protocol ID */
110 static inline struct proto *get_proto(struct net_device *dev, u16 pid)
114 	switch (pid) {
126 static inline const char *proto_name(u16 pid)
128 	switch (pid) {
204 static void ppp_tx_cp(struct net_device *dev, u16 pid, u8 code,
217 	if (pid == PID_LCP && (code == LCP_ECHO_REQ || code == LCP_ECHO_REPLY))
246 	       proto_name(pid), code_names[code], id, debug_buffer);
249 	ppp_hard_header(skb, dev, pid, NULL, NULL, 0);
299 static void ppp_cp_event(struct net_device *dev, u16 pid, u16 event, u8 code,
304 	struct proto *proto = get_proto(dev, pid);
312 	       proto_name(pid), event_names[event], state_names[proto->state]);
328 		ppp_tx_cp(dev, pid, CP_CONF_REQ, proto->cr_id = ++ppp->seq,
331 		ppp_tx_cp(dev, pid, CP_CONF_ACK, id, len, data);
333 		ppp_tx_cp(dev, pid, code, id, len, data);
335 		ppp_tx_cp(dev, pid, CP_TERM_REQ, ++ppp->seq, 0, NULL);
337 		ppp_tx_cp(dev, pid, CP_TERM_ACK, id, 0, NULL);
339 		ppp_tx_cp(dev, pid, CP_CODE_REJ, ++ppp->seq, len, data);
342 		netdev_info(dev, "%s up\n", proto_name(pid));
343 		if (pid == PID_LCP) {
353 		netdev_info(dev, "%s down\n", proto_name(pid));
354 		if (pid == PID_LCP) {
365 	       proto_name(pid), event_names[event], state_names[proto->state]);
369 static void ppp_cp_parse_cr(struct net_device *dev, u16 pid, u8 id,
387 		if (pid == PID_LCP)
419 		ppp_cp_event(dev, pid, RCR_BAD, CP_CONF_REJ, id, rej_len, out);
421 		ppp_cp_event(dev, pid, RCR_BAD, CP_CONF_NAK, id, nak_len, out);
423 		ppp_cp_event(dev, pid, RCR_GOOD, CP_CONF_ACK, id, req_len, data);
442 	u16 pid;
457 	pid = ntohs(hdr->protocol);
458 	proto = get_proto(dev, pid);
485 	printk(KERN_DEBUG "%s: RX %s %s\n", dev->name, proto_name(pid),
490 	if (pid == PID_LCP)
493 			pid = ntohs(*(__be16 *)skb->data);
494 			if (pid == PID_LCP || pid == PID_IPCP ||
495 			    pid == PID_IPV6CP)
496 				ppp_cp_event(dev, pid, RXJ_BAD, 0, 0,
518 		ppp_cp_parse_cr(dev, pid, cp->id, len, skb->data);
523 			ppp_cp_event(dev, pid, RCA, 0, 0, 0, NULL);
529 			ppp_cp_event(dev, pid, RCN, 0, 0, 0, NULL);
533 		ppp_cp_event(dev, pid, RTR, 0, cp->id, 0, NULL);
537 		ppp_cp_event(dev, pid, RTA, 0, 0, 0, NULL);
541 		ppp_cp_event(dev, pid, RXJ_BAD, 0, 0, 0, NULL);
548 		ppp_cp_event(dev, pid, RUC, 0, 0, len, cp);
582 			ppp_cp_event(proto->dev, proto->pid, TO_GOOD, 0, 0,
586 			ppp_cp_event(proto->dev, proto->pid, TO_GOOD, 0, 0,
589 			ppp_cp_event(proto->dev, proto->pid, TO_BAD, 0, 0,
594 		if (proto->pid != PID_LCP)
627 	ppp->protos[IDX_LCP].pid = PID_LCP;
628 	ppp->protos[IDX_IPCP].pid = PID_IPCP;
629 	ppp->protos[IDX_IPV6CP].pid = PID_IPV6CP;