NetworkInador/lib/network-inador-public.h

/*
 * main.c
 * This file is part of Network-inador
 *
 * Copyright (C) 2024 - 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 __NETWORK_INADOR_H__
#define __NETWORK_INADOR_H__

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>

#include <sys/types.h>
#include <unistd.h>

#include <linux/if_addr.h>

#ifndef FALSE
#define FALSE 0
#endif

#ifndef TRUE
#define TRUE !FALSE
#endif

/* Función que define una lectura desde un FD */
typedef void (*NetworkInadorInputFunc) (void *, int, int);
typedef void (*NetworkInadorChildWatchFunc) (void *, pid_t, int);

struct NetworkInadorOps {
	/* Vigilar FDs */
	unsigned int (*input_add) (int fd, int cond, NetworkInadorInputFunc func, void *user_data);
	void (*input_remove) (unsigned int);
	
	/* Vigilar procesos */
	unsigned int (*process_watch) (pid_t pid, NetworkInadorChildWatchFunc, void *user_data);
	void (*process_unwatch) (unsigned int);
	
	/* Ver si agregamos timers aquí */
};

typedef struct _NetworkInadorHandle NetworkInadorHandle;
typedef struct _Interface Interface;
typedef struct _IPAddr IPAddr;
typedef struct _Route Route;
typedef struct _RouteNH RouteNH;

NetworkInadorHandle * network_inador_init_handle (struct NetworkInadorOps *network_inador_ops);
void network_inador_destroy_handle (NetworkInadorHandle *handle);

void network_inador_setup_child_handler (NetworkInadorHandle *handle);

/* Funciones básicas de interfaces */
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_delete (NetworkInadorHandle *handle, int index);

/* Funciones básicas de IP */
int ip_address_del_ip (NetworkInadorHandle *handle, int index, uint8_t ip_family, uint8_t ip_prefix, uint8_t ip_has_local, void *ip_addr, void *ip_local_addr);
int ip_address_add_ip (NetworkInadorHandle *handle, int index, uint8_t ip_family, uint8_t ip_prefix, uint8_t ip_has_local, uint8_t ip_has_brd, uint8_t ip_scope, uint32_t ip_flags, struct ifa_cacheinfo *ip_cacheinfo, void *ip_addr, void *ip_local_addr, void *ip_brd_addr);

/* Funciones de bridge */
int interfaces_bridge_create (NetworkInadorHandle *handle, const char *name);
int interfaces_bridge_set_master_interface (NetworkInadorHandle *handle, int master_index, int index);
int interfaces_bridge_remove_master_interface (NetworkInadorHandle *handle, int index);

/* Funciones básicas de dhcp */
int interfaces_dhcp_client_run (NetworkInadorHandle *handle, int index, int type, uint32_t flags);
int interfaces_dhcp_client_stop (NetworkInadorHandle *handle, int index);

/* Funciones de Rutas */
int routes_add (NetworkInadorHandle *handle, uint8_t route_family, uint8_t route_prefix, uint8_t route_tos, uint32_t route_table, uint8_t route_protocol, uint8_t route_scope, uint8_t route_type, void *dest, void *prefsrc, uint32_t route_priority, void *route_nexthops);
int routes_del (NetworkInadorHandle *handle, uint8_t route_family, uint8_t route_prefix, uint8_t route_tos, uint32_t route_table, uint32_t route_priority, void *dest);

/* Funciones de tablas de ruteo */


/* Funciones de resolvconf */
void resolv_manager_process_resolvconf_entries (NetworkInadorHandle *handle, void *entries);
void resolv_manager_clear_entries_by_prog (NetworkInadorHandle *handle, const uint32_t iface_index, const char *prog);

/* Lista de getters */
uint32_t *network_inador_list_ifaces (NetworkInadorHandle *handle);
Interface * network_inador_get_iface (NetworkInadorHandle *handle, uint32_t index);
Interface *network_inador_get_iface_by_name (NetworkInadorHandle *handle, const char *name);
const unsigned char *network_inador_iface_get_name (Interface *iface);
uint32_t network_inador_iface_get_index (Interface *iface);
uint32_t network_inador_iface_get_link_type (Interface *iface);
uint32_t network_inador_iface_get_master_index (Interface *iface);
uint32_t network_inador_iface_get_mtu (Interface *iface);
uint16_t network_inador_iface_get_flags (Interface *iface);
uint8_t network_inador_iface_get_is_wireless (Interface *iface);
uint8_t network_inador_iface_get_num_ips (Interface *iface);
IPAddr *network_inador_iface_get_ipaddr_by_index (Interface *iface, int index);
Interface *network_inador_ipaddr_get_iface (IPAddr *ip_addr);
uint8_t network_inador_ipaddr_get_family (IPAddr *ip_addr);
uint8_t network_inador_ipaddr_get_prefix (IPAddr *ip_addr);
uint8_t network_inador_ipaddr_has_local (IPAddr *ip_addr);
uint8_t network_inador_ipaddr_has_brd (IPAddr *ip_addr);
uint8_t network_inador_ipaddr_get_scope (IPAddr *ip_addr);
uint32_t network_inador_ipaddr_get_flags (IPAddr *ip_addr);
void network_inador_ipaddr_get_cacheinfo (IPAddr *ip_addr, struct ifa_cacheinfo *cacheinfo);
void network_inador_ipaddr_get_addr (IPAddr *ip_addr, void *addr, int *addr_size);
void network_inador_ipaddr_get_local_addr (IPAddr *ip_addr, void *addr, int *addr_size);
void network_inador_ipaddr_get_brd_addr (IPAddr *ip_addr, void *addr, int *addr_size);
const unsigned char *network_inador_ipaddr_get_label (IPAddr *ip_addr);

int network_inador_get_routes_count (NetworkInadorHandle *handle, int family);
Route *network_inador_get_route_by_index (NetworkInadorHandle *handle, int family, int index);

uint8_t network_inador_route_get_family (Route *route);
uint8_t network_inador_route_get_type (Route *route);
uint32_t network_inador_route_get_table (Route *route);
uint8_t network_inador_route_get_prefix (Route *route);
uint8_t network_inador_route_get_protocol (Route *route);
uint8_t network_inador_route_get_tos (Route *route);
uint8_t network_inador_route_get_scope (Route *route);
uint8_t network_inador_route_has_prefsrc (Route *route);
uint32_t network_inador_route_get_priority (Route *route);
void network_inador_route_get_dest (Route *route, void *dest, int *addr_size);
void network_inador_route_get_prefsrc (Route *route, void *prefsrc, int *addr_size);
int network_inador_route_get_num_nexthops (Route *route);
RouteNH *network_inador_route_get_nexthop_by_index (Route *route, int index);
uint8_t network_inador_nexthop_has_gw (RouteNH *nexthop);
void network_inador_nexthop_get_gw (RouteNH *nexthop, void *gw, int *addr_size);
uint8_t network_inador_nexthop_get_flags (RouteNH *nexthop);
uint8_t network_inador_nexthop_get_weight (RouteNH *nexthop);
uint32_t network_inador_nexthop_get_out_index (RouteNH *nexthop);

int network_inador_rtables_get_count_tables (NetworkInadorHandle *handle);
void network_inador_rtables_get_table_by_index (NetworkInadorHandle *handle, uint32_t nth, uint32_t *table_index, unsigned char *table_name, size_t table_name_size);

void *network_inador_route_append_nexthop (void *list, uint8_t family, void *gw, uint32_t out_iface, uint8_t weight, uint8_t flags);
void network_inador_route_free_all_nexthops (void *list);

void *network_inador_resolvconf_append_ns_entry (void *list, int family, void *addr, int iface_index, const char *owner_prog);
void network_inador_resolvconf_free_all_entries (void *list);

#endif /* __NETWORK_INADOR_H__ */