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authorRene Mayrhofer <rene@mayrhofer.eu.org>2010-11-28 11:42:20 +0000
committerRene Mayrhofer <rene@mayrhofer.eu.org>2010-11-28 11:42:20 +0000
commitf73fba54dc8b30c6482e1e8abf15bbf455592fcd (patch)
treea449515607c5e51a5c703d7a9b1149c9e4a11560 /src/libcharon/kernel/kernel_net.h
parentb8064f4099997a9e2179f3ad4ace605f5ccac3a1 (diff)
downloadvyos-strongswan-f73fba54dc8b30c6482e1e8abf15bbf455592fcd.tar.gz
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[svn-upgrade] new version strongswan (4.5.0)
Diffstat (limited to 'src/libcharon/kernel/kernel_net.h')
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diff --git a/src/libcharon/kernel/kernel_net.h b/src/libcharon/kernel/kernel_net.h
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-/*
- * Copyright (C) 2008 Tobias Brunner
- * Copyright (C) 2007 Martin Willi
- * Hochschule fuer Technik Rapperswil
- *
- * This program 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. See <http://www.fsf.org/copyleft/gpl.txt>.
- *
- * 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.
- */
-
-/**
- * @defgroup kernel_net kernel_net
- * @{ @ingroup kernel
- */
-
-#ifndef KERNEL_NET_H_
-#define KERNEL_NET_H_
-
-typedef struct kernel_net_t kernel_net_t;
-
-#include <utils/enumerator.h>
-#include <utils/host.h>
-
-/**
- * Interface to the network subsystem of the kernel.
- *
- * The kernel network interface handles the communication with the kernel
- * for interface and IP address management.
- */
-struct kernel_net_t {
-
- /**
- * Get our outgoing source address for a destination.
- *
- * Does a route lookup to get the source address used to reach dest.
- * The returned host is allocated and must be destroyed.
- * An optional src address can be used to check if a route is available
- * for given source to dest.
- *
- * @param dest target destination address
- * @param src source address to check, or NULL
- * @return outgoing source address, NULL if unreachable
- */
- host_t* (*get_source_addr)(kernel_net_t *this, host_t *dest, host_t *src);
-
- /**
- * Get the next hop for a destination.
- *
- * Does a route lookup to get the next hop used to reach dest.
- * The returned host is allocated and must be destroyed.
- *
- * @param dest target destination address
- * @return next hop address, NULL if unreachable
- */
- host_t* (*get_nexthop)(kernel_net_t *this, host_t *dest);
-
- /**
- * Get the interface name of a local address.
- *
- * @param host address to get interface name from
- * @return allocated interface name, or NULL if not found
- */
- char* (*get_interface) (kernel_net_t *this, host_t *host);
-
- /**
- * Creates an enumerator over all local addresses.
- *
- * This function blocks an internal cached address list until the
- * enumerator gets destroyed.
- * The hosts are read-only, do not modify of free.
- *
- * @param include_down_ifaces TRUE to enumerate addresses from down interfaces
- * @param include_virtual_ips TRUE to enumerate virtual ip addresses
- * @return enumerator over host_t's
- */
- enumerator_t *(*create_address_enumerator) (kernel_net_t *this,
- bool include_down_ifaces, bool include_virtual_ips);
-
- /**
- * Add a virtual IP to an interface.
- *
- * Virtual IPs are attached to an interface. If an IP is added multiple
- * times, the IP is refcounted and not removed until del_ip() was called
- * as many times as add_ip().
- * The virtual IP is attached to the interface where the iface_ip is found.
- *
- * @param virtual_ip virtual ip address to assign
- * @param iface_ip IP of an interface to attach virtual IP
- * @return SUCCESS if operation completed
- */
- status_t (*add_ip) (kernel_net_t *this, host_t *virtual_ip,
- host_t *iface_ip);
-
- /**
- * Remove a virtual IP from an interface.
- *
- * The kernel interface uses refcounting, see add_ip().
- *
- * @param virtual_ip virtual ip address to assign
- * @return SUCCESS if operation completed
- */
- status_t (*del_ip) (kernel_net_t *this, host_t *virtual_ip);
-
- /**
- * Add a route.
- *
- * @param dst_net destination net
- * @param prefixlen destination net prefix length
- * @param gateway gateway for this route
- * @param src_ip sourc ip of the route
- * @param if_name name of the interface the route is bound to
- * @return SUCCESS if operation completed
- * ALREADY_DONE if the route already exists
- */
- status_t (*add_route) (kernel_net_t *this, chunk_t dst_net, u_int8_t prefixlen,
- host_t *gateway, host_t *src_ip, char *if_name);
-
- /**
- * Delete a route.
- *
- * @param dst_net destination net
- * @param prefixlen destination net prefix length
- * @param gateway gateway for this route
- * @param src_ip sourc ip of the route
- * @param if_name name of the interface the route is bound to
- * @return SUCCESS if operation completed
- */
- status_t (*del_route) (kernel_net_t *this, chunk_t dst_net, u_int8_t prefixlen,
- host_t *gateway, host_t *src_ip, char *if_name);
-
- /**
- * Destroy the implementation.
- */
- void (*destroy) (kernel_net_t *this);
-};
-
-#endif /** KERNEL_NET_H_ @}*/