/*
 * routes.h
 * This file is part of Network-inador
 *
 * Copyright (C) 2022 - Félix Arreola Rodríguez
 *
 * Network-inador is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Network-inador is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Network-inador; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, 
 * Boston, MA  02110-1301  USA
 */

#ifndef __ROUTES_H__
#define __ROUTES_H__

#include <stdint.h>

#include <netlink/socket.h>
#include <netlink/msg.h>

#include "network-inador-private.h"
#include "struct_addr_union.h"
#include "flist.h"

/* Un Next-hop */
typedef struct {
	struct_addr gw;
	uint32_t out_index;
	uint8_t nh_weight;
	uint8_t nh_flags;
} RouteNH;

/* La tabla de ruteo */
typedef struct {
	sa_family_t family; /* AF_INET, AF_INET6 */
	
	uint8_t type; /* Unicast, local, broadcast, etc... */
	uint32_t table;
	struct_addr dest;
	uint8_t prefix;
	uint8_t tos;
	
	uint8_t protocol;
	uint8_t scope;
	
	struct_addr prefsrc;
	uint32_t priority;
	
	/* Los brincos */
	FList *nexthops;
	
	/* Variable usada para determinar si debemos eliminar la ruta */
	int for_delete;
} Route;

typedef struct {
	uint32_t table;
	char name[256];
	
	int for_delete, was_new;
} RouteTable;

void routes_init (NetworkInadorHandle *handle);
void routes_ask (NetworkInadorHandle *handle);
int routes_receive_message_newroute (struct nl_msg *msg, void *arg);
int routes_receive_message_delroute (struct nl_msg *msg, void *arg);
int routes_add (NetworkInadorHandle *handle, Route *route);
int routes_del (NetworkInadorHandle *handle, Route *route);

void route_ask_delayed_delroute (NetworkInadorHandle *handle);

void routes_clean_up (NetworkInadorHandle *handle);

#endif /* __ROUTES_H__ */