/* l2tp_peer.h
 */
#include "sockaddr_union.h"
#include "timer.h"

class l2tpd_t;
class l2tp_tunnel_t;
class ctrlfd_t;
class dfs_object_t;
class bvirt_ns_t;

class l2tp_peer_t : public PacketHandler_t  {
public:
	l2tp_tunnel_t		**l2tp_tunnels;
	l2tpd_t			*l2tpd;
	l2tp_peer_t		*next;

	union sockaddr_union	local_sau;
	union sockaddr_union	remote_sau;

	int			m_udp_connect_failed;

	const char		*m_secret;
	int			m_secret_len;
	bvirt_ns_t		*m_netns;

	const char		*m_hw_dev;
	u8			m_hw_mac[6];
	bool			m_hw_valid;
	CTimer			m_hw_timer;

	l2tp_peer_t(l2tpd_t *parent, union sockaddr_union *local, union sockaddr_union *remote, const char *secret = NULL, bvirt_ns_t *netns = NULL);
	void dump_sessions(ctrlfd_t *cfd, int verbose);
	int alloc_tunnel_id(l2tp_tunnel_t *tunnel, u16 local_tunnel = 0, u16 peer_tunnel = 0);
	void remove_tunnel_id(int id, l2tp_tunnel_t *tunnel);
	void handle_packet(char *buf, unsigned len, union sockaddr_union *sin);

	l2tp_tunnel_t *make_tunnel(void);
	l2tp_tunnel_t *find_next_tunnel(l2tp_tunnel_t *tunnel);
	l2tp_tunnel_t *find_avail_tunnel(void);
	void update_secret(const char *new_secret);

	const char *peer_ip(void);
	const char *local_ip(void);

	int dfs_restore(dfs_object_t *obj);
	void show_running_config(ctrlfd_t *cfd, int verbose);

	void update_hw_dev(const char *dev);
	void update_hw_arp(void);
	bool get_hw_info(struct l2tp_hardwire_info *info);
};