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Diffstat (limited to 'src/openvpn/sitnl.h')
| -rw-r--r-- | src/openvpn/sitnl.h | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/src/openvpn/sitnl.h b/src/openvpn/sitnl.h new file mode 100644 index 0000000..937522f --- /dev/null +++ b/src/openvpn/sitnl.h @@ -0,0 +1,217 @@ +/* + * 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_ */ |