/*
 * interfaces.h
 * This file is part of Network-inador
 *
 * Copyright (C) 2019, 2020 - 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 __INTERFACES_H__
#define __INTERFACES_H__

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

#include <linux/ipv6.h>
#include <linux/if_link.h>

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

#include "dhcpc_defs.h"
#include "wireless_struct.h"

/* Información extra de IPv6 para la interfaz */
struct inet6_data {
	uint32_t		i6_flags;
	struct ifla_cacheinfo	i6_cacheinfo;
	uint32_t		i6_conf[DEVCONF_MAX];
	uint8_t			i6_addr_gen_mode;
};

typedef struct {
	NetworkInadorHandle *handle;
	uint32_t index;
	char name[IFNAMSIZ];
	uint32_t link_type;
	uint16_t arp_type;
	unsigned char real_hw[ETHER_ADDR_LEN * 2 + 1];
	
	/* Para las interfaces dentro de un bridge */
	uint32_t master_index;
	
	uint32_t mtu;
	
	/* Para las interfaces vlan */
	unsigned int vlan_parent;
	
	/* Banderas estilo ioctl */
	short flags;
	
	int is_wireless;
	
	char wireless_protocol[IFNAMSIZ];
	
	/* Tipo */
	char rtnl_type[IFNAMSIZ];
	
	/* Para los parámetros de IPv4 e IPv6 */
	struct inet6_data inet6_data;
	
	/* La lista de direcciones IP, ambas */
	FList *address;
	
	InterfaceDHCPClientInfo dhcpc;
	
	/* Información wireless */
	WirelessInfo *wireless;
} Interface;

void interfaces_init (NetworkInadorHandle *handle);
int interface_receive_message_newlink (struct nl_msg *msg, void *arg);
int interface_receive_message_dellink (struct nl_msg *msg, void *arg);

int _interfaces_wait_ack_or_error (struct nl_msg *msg, void *arg);
int _interfaces_wait_error (struct sockaddr_nl *nla, struct nlmsgerr *l_err, void *arg);

Interface * _interfaces_locate_by_index (FList *list, int index);
Interface * _interfaces_locate_by_name (FList *list, const char *name);

int interfaces_change_mac_address (NetworkInadorHandle *handle, int index, void *new_mac);
int interfaces_change_mtu (NetworkInadorHandle *handle, int index, uint32_t new_mtu);
int interfaces_change_set_up (NetworkInadorHandle *handle, int index);
int interfaces_change_set_down (NetworkInadorHandle *handle, int index);
int interfaces_change_name (NetworkInadorHandle *handle, int index, char * new_name);

//int interfaces_set_sysctl_ipv6_params (NetworkInadorHandle *handle, int index, int param, ...);

void interfaces_clean_up (NetworkInadorHandle *handle);

#endif