/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright 2011-2014 Autronica Fire and Security AS
 *
 * Author(s):
 *	2011-2014 Arvid Brodin, arvid.brodin@alten.se
 */

#ifndef __HSR_FRAMEREG_H
#define __HSR_FRAMEREG_H

#include "hsr_main.h"

struct hsr_node;

void hsr_del_self_node(struct list_head *self_node_db);
void hsr_del_nodes(struct list_head *node_db);
struct hsr_node *hsr_add_node(struct list_head *node_db, unsigned char addr[],
			      u16 seq_out);
struct hsr_node *hsr_get_node(struct hsr_port *port, struct sk_buff *skb,
			      bool is_sup);
void hsr_handle_sup_frame(struct sk_buff *skb, struct hsr_node *node_curr,
			  struct hsr_port *port);
bool hsr_addr_is_self(struct hsr_priv *hsr, unsigned char *addr);

void hsr_addr_subst_source(struct hsr_node *node, struct sk_buff *skb);
void hsr_addr_subst_dest(struct hsr_node *node_src, struct sk_buff *skb,
			 struct hsr_port *port);

void hsr_register_frame_in(struct hsr_node *node, struct hsr_port *port,
			   u16 sequence_nr);
int hsr_register_frame_out(struct hsr_port *port, struct hsr_node *node,
			   u16 sequence_nr);

void hsr_prune_nodes(struct timer_list *t);

int hsr_create_self_node(struct list_head *self_node_db,
			 unsigned char addr_a[ETH_ALEN],
			 unsigned char addr_b[ETH_ALEN]);

void *hsr_get_next_node(struct hsr_priv *hsr, void *_pos,
			unsigned char addr[ETH_ALEN]);

int hsr_get_node_data(struct hsr_priv *hsr,
		      const unsigned char *addr,
		      unsigned char addr_b[ETH_ALEN],
		      unsigned int *addr_b_ifindex,
		      int *if1_age,
		      u16 *if1_seq,
		      int *if2_age,
		      u16 *if2_seq);

struct hsr_node {
	struct list_head	mac_list;
	unsigned char		macaddress_A[ETH_ALEN];
	unsigned char		macaddress_B[ETH_ALEN];
	/* Local slave through which AddrB frames are received from this node */
	enum hsr_port_type	addr_B_port;
	unsigned long		time_in[HSR_PT_PORTS];
	bool			time_in_stale[HSR_PT_PORTS];
	u16			seq_out[HSR_PT_PORTS];
	struct rcu_head		rcu_head;
};

#endif /* __HSR_FRAMEREG_H */