/*
* Simplified Interface To NetLink
*
* Copyright (C) 2016-2018 Antonio Quartulli <a@unstable.cc>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program 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 this program (see the file COPYING included with this
* distribution); if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef SITNL_H_
#define SITNL_H_
#ifdef TARGET_LINUX
#include <stdbool.h>
#include <netinet/in.h>
/**
* Bring interface up or down.
*
* @param iface the interface to modify
* @param up true if the interface has to be brought up, false otherwise
*
* @return 0 on success, a negative error code otherwise
*/
int sitnl_iface_up(const char *iface, bool up);
/**
* Set the MTU for an interface
*
* @param iface the interface to modify
* @param mtru the new MTU
*
* @return 0 on success, a negative error code otherwise
*/
int sitnl_iface_mtu_set(const char *iface, uint32_t mtu);
/**
* Add an IPv4 address to an interface
*
* @param iface the interface where the address has to be added
* @param addr the address to add
* @param prefixlen the prefix length of the network associated with the address
* @param broadcast the broadcast address to configure on the interface
*
* @return 0 on success, a negative error code otherwise
*/
int sitnl_addr_v4_add(const char *iface, const in_addr_t *addr, int prefixlen,
const in_addr_t *broadcast);
/**
* Add an IPv6 address to an interface
*
* @param iface the interface where the address has to be added
* @param addr the address to add
* @param prefixlen the prefix length of the network associated with the address
*
* @return 0 on success, a negative error code otherwise
*/
int sitnl_addr_v6_add(const char *iface, const struct in6_addr *addr,
int prefixlen);
/**
* Remove an IPv4 from an interface
*
* @param iface the interface to remove the address from
* @param prefixlen the prefix length of the network associated with the address
*
* @return 0 on success, a negative error code otherwise
*/
int sitnl_addr_v4_del(const char *iface, const in_addr_t *addr, int prefixlen);
/**
* Remove an IPv6 from an interface
*
* @param iface the interface to remove the address from
* @param prefixlen the prefix length of the network associated with the address
*
* @return 0 on success, a negative error code otherwise
*/
int sitnl_addr_v6_del(const char *iface, const struct in6_addr *addr,
int prefixlen);
/**
* Add a point-to-point IPv4 address to an interface
*
* @param iface the interface where the address has to be added
* @param local the address to add
* @param remote the associated p-t-p remote address
*
* @return 0 on success, a negative error code otherwise
*/
int sitnl_addr_ptp_v4_add(const char *iface, const in_addr_t *local,
const in_addr_t *remote);
/**
* Remove a point-to-point IPv4 address from an interface
*
* @param iface the interface to remove the address from
* @param local the address to remove
*
* @return 0 on success, a negative error code otherwise
*/
int sitnl_addr_ptp_v4_del(const char *iface, const in_addr_t *local);
/**
* Add a route for an IPv4 address/network
*
* @param dst the destination of the route
* @param prefixlen the length of the prefix of the destination
* @param gw the gateway for this route
* @param iface the interface for this route (can be NULL)
* @param table the table to add this route to (if 0, will be added to the
* main table)
* @param metric the metric associated with the route
*
* @return 0 on success, a negative error code otherwise
*/
int sitnl_route_v4_add(const in_addr_t *dst, int prefixlen,
const in_addr_t *gw, const char *iface, uint32_t table,
int metric);
/**
* Add a route for an IPv6 address/network
*
* @param dst the destination of the route
* @param prefixlen the length of the prefix of the destination
* @param gw the gateway for this route
* @param iface the interface for this route (can be NULL)
* @param table the table to add this route to (if 0, will be added to the
* main table)
* @param metric the metric associated with the route
*
* @return 0 on success, a negative error code otherwise
*/
int sitnl_route_v6_add(const struct in6_addr *dst, int prefixlen,
const struct in6_addr *gw, const char *iface,
uint32_t table, int metric);
/**
* Delete a route for an IPv4 address/network
*
* @param dst the destination of the route
* @param prefixlen the length of the prefix of the destination
* @param gw the gateway for this route
* @param iface the interface for this route (can be NULL)
* @param table the table to add this route to (if 0, will be added to the
* main table)
* @param metric the metric associated with the route
*
* @return 0 on success, a negative error code otherwise
*/
int sitnl_route_v4_del(const in_addr_t *dst, int prefixlen,
const in_addr_t *gw, const char *iface, uint32_t table,
int metric);
/**
* Delete a route for an IPv4 address/network
*
* @param dst the destination of the route
* @param prefixlen the length of the prefix of the destination
* @param gw the gateway for this route
* @param iface the interface for this route (can be NULL)
* @param table the table to add this route to (if 0, will be added to the
* main table)
* @param metric the metric associated with the route
*
* @return 0 on success, a negative error code otherwise
*/
int sitnl_route_v6_del(const struct in6_addr *dst, int prefixlen,
const struct in6_addr *gw, const char *iface,
uint32_t table, int metric);
/**
* Retrieve the gateway and outgoing interface for the specified IPv4
* address/network
*
* @param dst The destination to lookup
* @param prefixlen The length of the prefix of the destination
* @param best_gw Location where the retrieved GW has to be stored
* @param best_iface Location where the retrieved interface has to be stored
*
* @return 0 on success, a negative error code otherwise
*/
int sitnl_route_v4_best_gw(const in_addr_t *dst, int prefixlen,
in_addr_t *best_gw, char *best_iface);
/**
* Retrieve the gateway and outgoing interface for the specified IPv6
* address/network
*
* @param dst The destination to lookup
* @param prefixlen The length of the prefix of the destination
* @param best_gw Location where the retrieved GW has to be stored
* @param best_iface Location where the retrieved interface has to be stored
*
* @return 0 on success, a negative error code otherwise
*/
int sitnl_route_v6_best_gw(const struct in6_addr *dst, int prefixlen,
struct in6_addr *best_gw, char *best_iface);
#endif /* TARGET_LINUX */
#endif /* SITNL_H_ */