Imported Upstream version 5.4.0

1 files changed, 0 insertions, 655 deletions

diff --git a/src/libhydra/kernel/kernel_interface.h b/src/libhydra/kernel/kernel_interface.h
deleted file mode 100644
index 45efe8946..000000000
--- a/src/libhydra/kernel/kernel_interface.h
+++ /dev/null
@@ -1,655 +0,0 @@
-/*
- * Copyright (C) 2006-2015 Tobias Brunner
- * Copyright (C) 2006 Daniel Roethlisberger
- * Copyright (C) 2005-2006 Martin Willi
- * Copyright (C) 2005 Jan Hutter
- * 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.
- */
-
-/*
- * Copyright (c) 2012 Nanoteq Pty Ltd
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-/**
- * @defgroup kernel_interface kernel_interface
- * @{ @ingroup hkernel
- */
-
-#ifndef KERNEL_INTERFACE_H_
-#define KERNEL_INTERFACE_H_
-
-typedef struct kernel_interface_t kernel_interface_t;
-typedef enum kernel_feature_t kernel_feature_t;
-
-#include <networking/host.h>
-#include <crypto/prf_plus.h>
-
-#include <kernel/kernel_listener.h>
-#include <kernel/kernel_ipsec.h>
-#include <kernel/kernel_net.h>
-
-/**
- * Bitfield of optional features a kernel backend supports.
- *
- * This feature-set is for both, kernel_ipsec_t and kernel_net_t. Each
- * backend returns a subset of these features.
- */
-enum kernel_feature_t {
-	/** IPsec can process ESPv3 (RFC 4303) TFC padded packets */
-	KERNEL_ESP_V3_TFC = (1<<0),
-	/** Networking requires an "exclude" route for IKE/ESP packets */
-	KERNEL_REQUIRE_EXCLUDE_ROUTE = (1<<1),
-	/** IPsec implementation requires UDP encapsulation of ESP packets */
-	KERNEL_REQUIRE_UDP_ENCAPSULATION = (1<<2),
-	/** IPsec backend does not require a policy reinstall on SA updates */
-	KERNEL_NO_POLICY_UPDATES = (1<<3),
-};
-
-/**
- * Constructor function for ipsec kernel interface
- */
-typedef kernel_ipsec_t* (*kernel_ipsec_constructor_t)(void);
-
-/**
- * Constructor function for network kernel interface
- */
-typedef kernel_net_t* (*kernel_net_constructor_t)(void);
-
-/**
- * Manager and wrapper for different kernel interfaces.
- *
- * The kernel interface handles the communication with the kernel
- * for SA and policy management and interface and IP address management.
- */
-struct kernel_interface_t {
-
-	/**
-	 * Get the feature set supported by the net and ipsec kernel backends.
-	 *
-	 * @return				ORed feature-set of backends
-	 */
-	kernel_feature_t (*get_features)(kernel_interface_t *this);
-
-	/**
-	 * Get a SPI from the kernel.
-	 *
-	 * @param src		source address of SA
-	 * @param dst		destination address of SA
-	 * @param protocol	protocol for SA (ESP/AH)
-	 * @param spi		allocated spi
-	 * @return			SUCCESS if operation completed
-	 */
-	status_t (*get_spi)(kernel_interface_t *this, host_t *src, host_t *dst,
-						u_int8_t protocol, u_int32_t *spi);
-
-	/**
-	 * Get a Compression Parameter Index (CPI) from the kernel.
-	 *
-	 * @param src		source address of SA
-	 * @param dst		destination address of SA
-	 * @param cpi		allocated cpi
-	 * @return			SUCCESS if operation completed
-	 */
-	status_t (*get_cpi)(kernel_interface_t *this, host_t *src, host_t *dst,
-						u_int16_t *cpi);
-
-	/**
-	 * Allocate or confirm a reqid to use for a given SA pair.
-	 *
-	 * Each returned reqid by a successful call to alloc_reqid() must be
-	 * released using release_reqid().
-	 *
-	 * The reqid parameter is an in/out parameter. If it points to non-zero,
-	 * the reqid is confirmed and registered for use. If it points to zero,
-	 * a reqid is allocated for the given selectors, and returned to reqid.
-	 *
-	 * @param local_ts	traffic selectors of local side for SA
-	 * @param remote_ts	traffic selectors of remote side for SA
-	 * @param mark_in	inbound mark on SA
-	 * @param mark_out	outbound mark on SA
-	 * @param reqid		allocated reqid
-	 * @return			SUCCESS if reqid allocated
-	 */
-	status_t (*alloc_reqid)(kernel_interface_t *this,
-							linked_list_t *local_ts, linked_list_t *remote_ts,
-							mark_t mark_in, mark_t mark_out,
-							u_int32_t *reqid);
-
-	/**
-	 * Release a previously allocated reqid.
-	 *
-	 * @param reqid		reqid to release
-	 * @param mark_in	inbound mark on SA
-	 * @param mark_out	outbound mark on SA
-	 * @return			SUCCESS if reqid released
-	 */
-	status_t (*release_reqid)(kernel_interface_t *this, u_int32_t reqid,
-							  mark_t mark_in, mark_t mark_out);
-
-	/**
-	 * Add an SA to the SAD.
-	 *
-	 * This function does install a single SA for a single protocol in one
-	 * direction.
-	 *
-	 * @param src			source address for this SA
-	 * @param dst			destination address for this SA
-	 * @param spi			SPI allocated by us or remote peer
-	 * @param protocol		protocol for this SA (ESP/AH)
-	 * @param reqid			reqid for this SA
-	 * @param mark			optional mark for this SA
-	 * @param tfc			Traffic Flow Confidentiality padding for this SA
-	 * @param lifetime		lifetime_cfg_t for this SA
-	 * @param enc_alg		Algorithm to use for encryption (ESP only)
-	 * @param enc_key		key to use for encryption
-	 * @param int_alg		Algorithm to use for integrity protection
-	 * @param int_key		key to use for integrity protection
-	 * @param mode			mode of the SA (tunnel, transport)
-	 * @param ipcomp		IPComp transform to use
-	 * @param cpi			CPI for IPComp
-	 * @param replay_window	anti-replay window size
-	 * @param initiator		TRUE if initiator of the exchange creating this SA
-	 * @param encap			enable UDP encapsulation for NAT traversal
-	 * @param esn			TRUE to use Extended Sequence Numbers
-	 * @param inbound		TRUE if this is an inbound SA
-	 * @param update		TRUE if an SPI has already been allocated for SA
-	 * @param src_ts		list of source traffic selectors
-	 * @param dst_ts		list of destination traffic selectors
-	 * @return				SUCCESS if operation completed
-	 */
-	status_t (*add_sa) (kernel_interface_t *this,
-						host_t *src, host_t *dst, u_int32_t spi,
-						u_int8_t protocol, u_int32_t reqid, mark_t mark,
-						u_int32_t tfc, lifetime_cfg_t *lifetime,
-						u_int16_t enc_alg, chunk_t enc_key,
-						u_int16_t int_alg, chunk_t int_key,
-						ipsec_mode_t mode, u_int16_t ipcomp, u_int16_t cpi,
-						u_int32_t replay_window, bool initiator, bool encap,
-						bool esn, bool inbound, bool update,
-						linked_list_t *src_ts, linked_list_t *dst_ts);
-
-	/**
-	 * Update the hosts on an installed SA.
-	 *
-	 * We cannot directly update the destination address as the kernel
-	 * requires the spi, the protocol AND the destination address (and family)
-	 * to identify SAs. Therefore if the destination address changed we
-	 * create a new SA and delete the old one.
-	 *
-	 * @param spi			SPI of the SA
-	 * @param protocol		protocol for this SA (ESP/AH)
-	 * @param cpi			CPI for IPComp, 0 if no IPComp is used
-	 * @param src			current source address
-	 * @param dst			current destination address
-	 * @param new_src		new source address
-	 * @param new_dst		new destination address
-	 * @param encap			current use of UDP encapsulation
-	 * @param new_encap		new use of UDP encapsulation
-	 * @param mark			optional mark for this SA
-	 * @return				SUCCESS if operation completed, NOT_SUPPORTED if
-	 *					  the kernel interface can't update the SA
-	 */
-	status_t (*update_sa)(kernel_interface_t *this,
-						  u_int32_t spi, u_int8_t protocol, u_int16_t cpi,
-						  host_t *src, host_t *dst,
-						  host_t *new_src, host_t *new_dst,
-						  bool encap, bool new_encap, mark_t mark);
-
-	/**
-	 * Query the number of bytes processed by an SA from the SAD.
-	 *
-	 * @param src			source address for this SA
-	 * @param dst			destination address for this SA
-	 * @param spi			SPI allocated by us or remote peer
-	 * @param protocol		protocol for this SA (ESP/AH)
-	 * @param mark			optional mark for this SA
-	 * @param[out] bytes	the number of bytes processed by SA
-	 * @param[out] packets	number of packets processed by SA
-	 * @param[out] time		last (monotonic) time of SA use
-	 * @return				SUCCESS if operation completed
-	 */
-	status_t (*query_sa) (kernel_interface_t *this, host_t *src, host_t *dst,
-						  u_int32_t spi, u_int8_t protocol, mark_t mark,
-						  u_int64_t *bytes, u_int64_t *packets, time_t *time);
-
-	/**
-	 * Delete a previously installed SA from the SAD.
-	 *
-	 * @param src			source address for this SA
-	 * @param dst			destination address for this SA
-	 * @param spi			SPI allocated by us or remote peer
-	 * @param protocol		protocol for this SA (ESP/AH)
-	 * @param cpi			CPI for IPComp or 0
-	 * @param mark			optional mark for this SA
-	 * @return				SUCCESS if operation completed
-	 */
-	status_t (*del_sa) (kernel_interface_t *this, host_t *src, host_t *dst,
-						u_int32_t spi, u_int8_t protocol, u_int16_t cpi,
-						mark_t mark);
-
-	/**
-	 * Flush all SAs from the SAD.
-	 *
-	 * @return				SUCCESS if operation completed
-	 */
-	status_t (*flush_sas) (kernel_interface_t *this);
-
-	/**
-	 * Add a policy to the SPD.
-	 *
-	 * @param src			source address of SA
-	 * @param dst			dest address of SA
-	 * @param src_ts		traffic selector to match traffic source
-	 * @param dst_ts		traffic selector to match traffic dest
-	 * @param direction		direction of traffic, POLICY_(IN|OUT|FWD)
-	 * @param type			type of policy, POLICY_(IPSEC|PASS|DROP)
-	 * @param sa			details about the SA(s) tied to this policy
-	 * @param mark			mark for this policy
-	 * @param priority		priority of this policy
-	 * @return				SUCCESS if operation completed
-	 */
-	status_t (*add_policy) (kernel_interface_t *this,
-							host_t *src, host_t *dst,
-							traffic_selector_t *src_ts,
-							traffic_selector_t *dst_ts,
-							policy_dir_t direction, policy_type_t type,
-							ipsec_sa_cfg_t *sa, mark_t mark,
-							policy_priority_t priority);
-
-	/**
-	 * Query the use time of a policy.
-	 *
-	 * The use time of a policy is the time the policy was used
-	 * for the last time.
-	 *
-	 * @param src_ts		traffic selector to match traffic source
-	 * @param dst_ts		traffic selector to match traffic dest
-	 * @param direction		direction of traffic, POLICY_(IN|OUT|FWD)
-	 * @param mark			optional mark
-	 * @param[out] use_time	the (monotonic) time of this SA's last use
-	 * @return				SUCCESS if operation completed
-	 */
-	status_t (*query_policy) (kernel_interface_t *this,
-							  traffic_selector_t *src_ts,
-							  traffic_selector_t *dst_ts,
-							  policy_dir_t direction, mark_t mark,
-							  time_t *use_time);
-
-	/**
-	 * Remove a policy from the SPD.
-	 *
-	 * @param src			source address of SA
-	 * @param dst			dest address of SA
-	 * @param src_ts		traffic selector to match traffic source
-	 * @param dst_ts		traffic selector to match traffic dest
-	 * @param direction		direction of traffic, POLICY_(IN|OUT|FWD)
-	 * @param type			type of policy, POLICY_(IPSEC|PASS|DROP)
-	 * @param sa			details about the SA(s) tied to this policy
-	 * @param mark			mark for this policy
-	 * @param priority		priority of the policy
-	 * @return				SUCCESS if operation completed
-	 */
-	status_t (*del_policy) (kernel_interface_t *this,
-							host_t *src, host_t *dst,
-							traffic_selector_t *src_ts,
-							traffic_selector_t *dst_ts,
-							policy_dir_t direction, policy_type_t type,
-							ipsec_sa_cfg_t *sa, mark_t mark,
-							policy_priority_t priority);
-
-	/**
-	 * Flush all policies from the SPD.
-	 *
-	 * @return				SUCCESS if operation completed
-	 */
-	status_t (*flush_policies) (kernel_interface_t *this);
-
-	/**
-	 * 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 the 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_interface_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.
-	 * An optional src address can be used to check if a route is available
-	 * for the given source to dest.
-	 *
-	 * @param dest			target destination address
-	 * @param prefix		prefix length if dest is a subnet, -1 for auto
-	 * @param src			source address to check, or NULL
-	 * @return				next hop address, NULL if unreachable
-	 */
-	host_t* (*get_nexthop)(kernel_interface_t *this, host_t *dest,
-						   int prefix, host_t *src);
-
-	/**
-	 * Get the interface name of a local address. Interfaces that are down or
-	 * ignored by config are not considered.
-	 *
-	 * @param host			address to get interface name from
-	 * @param name			allocated interface name (optional)
-	 * @return				TRUE if interface found and usable
-	 */
-	bool (*get_interface)(kernel_interface_t *this, host_t *host, char **name);
-
-	/**
-	 * 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 which			a combination of address types to enumerate
-	 * @return				enumerator over host_t's
-	 */
-	enumerator_t *(*create_address_enumerator) (kernel_interface_t *this,
-												kernel_address_type_t which);
-
-	/**
-	 * 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().
-	 *
-	 * @param virtual_ip	virtual ip address to assign
-	 * @param prefix		prefix length to install IP with, -1 for auto
-	 * @param iface			interface to install virtual IP on
-	 * @return				SUCCESS if operation completed
-	 */
-	status_t (*add_ip) (kernel_interface_t *this, host_t *virtual_ip, int prefix,
-						char *iface);
-
-	/**
-	 * Remove a virtual IP from an interface.
-	 *
-	 * The kernel interface uses refcounting, see add_ip().
-	 *
-	 * @param virtual_ip	virtual ip address to remove
-	 * @param prefix		prefix length of the IP to uninstall, -1 for auto
-	 * @param wait			TRUE to wait untily IP is gone
-	 * @return				SUCCESS if operation completed
-	 */
-	status_t (*del_ip) (kernel_interface_t *this, host_t *virtual_ip,
-						int prefix, bool wait);
-
-	/**
-	 * Add a route.
-	 *
-	 * @param dst_net		destination net
-	 * @param prefixlen		destination net prefix length
-	 * @param gateway		gateway for this route
-	 * @param src_ip		source 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_interface_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		source 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_interface_t *this, chunk_t dst_net,
-						   u_int8_t prefixlen, host_t *gateway, host_t *src_ip,
-						   char *if_name);
-
-	/**
-	 * Set up a bypass policy for a given socket.
-	 *
-	 * @param fd			socket file descriptor to setup policy for
-	 * @param family		protocol family of the socket
-	 * @return				TRUE if policy set up successfully
-	 */
-	bool (*bypass_socket)(kernel_interface_t *this, int fd, int family);
-
-	/**
-	 * Enable decapsulation of ESP-in-UDP packets for the given port/socket.
-	 *
-	 * @param fd			socket file descriptor
-	 * @param family		protocol family of the socket
-	 * @param port			the UDP port
-	 * @return				TRUE if UDP decapsulation was enabled successfully
-	 */
-	bool (*enable_udp_decap)(kernel_interface_t *this, int fd, int family,
-							 u_int16_t port);
-
-
-	/**
-	 * manager methods
-	 */
-
-	/**
-	 * Verifies that the given interface is usable and not excluded by
-	 * configuration.
-	 *
-	 * @param iface			interface name
-	 * @return				TRUE if usable
-	 */
-	bool (*is_interface_usable)(kernel_interface_t *this, const char *iface);
-
-	/**
-	 * Check if interfaces are excluded by config.
-	 *
-	 * @return				TRUE if no interfaces are exclued by config
-	 */
-	bool (*all_interfaces_usable)(kernel_interface_t *this);
-
-	/**
-	 * Tries to find an IP address of a local interface that is included in the
-	 * supplied traffic selector.
-	 *
-	 * @param ts			traffic selector
-	 * @param ip			returned IP address (has to be destroyed)
-	 * @param vip			set to TRUE if returned address is a virtual IP
-	 * @return				SUCCESS if address found
-	 */
-	status_t (*get_address_by_ts)(kernel_interface_t *this,
-								  traffic_selector_t *ts, host_t **ip, bool *vip);
-
-	/**
-	 * Register an ipsec kernel interface constructor on the manager.
-	 *
-	 * @param create		constructor to register
-	 * @return				TRUE if the ipsec kernel interface was registered
-	 *						successfully, FALSE if an interface was already
-	 *						registered or the registration failed
-	 */
-	bool (*add_ipsec_interface)(kernel_interface_t *this,
-								kernel_ipsec_constructor_t create);
-
-	/**
-	 * Unregister an ipsec kernel interface constructor.
-	 *
-	 * @param create		constructor to unregister
-	 * @return				TRUE if the ipsec kernel interface was unregistered
-	 *						successfully, FALSE otherwise
-	 */
-	bool (*remove_ipsec_interface)(kernel_interface_t *this,
-								   kernel_ipsec_constructor_t create);
-
-	/**
-	 * Register a network kernel interface constructor on the manager.
-	 *
-	 * @param create		constructor to register
-	 * @return				TRUE if the kernel net interface was registered
-	 *						successfully, FALSE if an interface was already
-	 *						registered or the registration failed
-	 */
-	bool (*add_net_interface)(kernel_interface_t *this,
-							  kernel_net_constructor_t create);
-
-	/**
-	 * Unregister a network kernel interface constructor.
-	 *
-	 * @param create		constructor to unregister
-	 * @return				TRUE if the kernel net interface was unregistered
-	 *						successfully, FALSE otherwise
-	 */
-	bool (*remove_net_interface)(kernel_interface_t *this,
-								 kernel_net_constructor_t create);
-
-	/**
-	 * Add a listener to the kernel interface.
-	 *
-	 * @param listener		listener to add
-	 */
-	void (*add_listener)(kernel_interface_t *this,
-						 kernel_listener_t *listener);
-
-	/**
-	 * Remove a listener from the kernel interface.
-	 *
-	 * @param listener		listener to remove
-	 */
-	void (*remove_listener)(kernel_interface_t *this,
-							kernel_listener_t *listener);
-
-	/**
-	 * Raise an acquire event.
-	 *
-	 * @param reqid			reqid of the policy to acquire
-	 * @param src_ts		source traffic selector
-	 * @param dst_ts		destination traffic selector
-	 */
-	void (*acquire)(kernel_interface_t *this, u_int32_t reqid,
-					traffic_selector_t *src_ts, traffic_selector_t *dst_ts);
-
-	/**
-	 * Raise an expire event.
-	 *
-	 * @param protocol		protocol of the expired SA
-	 * @param spi			spi of the expired SA
-	 * @param dst			destination address of expired SA
-	 * @param hard			TRUE if it is a hard expire, FALSE otherwise
-	 */
-	void (*expire)(kernel_interface_t *this, u_int8_t protocol, u_int32_t spi,
-				   host_t *dst, bool hard);
-
-	/**
-	 * Raise a mapping event.
-	 *
-	 * @param protocol		protocol of affected SA
-	 * @param spi			spi of the SA
-	 * @param dst			original destination address of SA
-	 * @param remote		new remote host
-	 */
-	void (*mapping)(kernel_interface_t *this, u_int8_t protocol, u_int32_t spi,
-					host_t *dst, host_t *remote);
-
-	/**
-	 * Raise a migrate event.
-	 *
-	 * @param reqid			reqid of the policy
-	 * @param src_ts		source traffic selector
-	 * @param dst_ts		destination traffic selector
-	 * @param direction		direction of the policy (in|out)
-	 * @param local			local host address to be used in the IKE_SA
-	 * @param remote		remote host address to be used in the IKE_SA
-	 */
-	void (*migrate)(kernel_interface_t *this, u_int32_t reqid,
-					traffic_selector_t *src_ts, traffic_selector_t *dst_ts,
-					policy_dir_t direction, host_t *local, host_t *remote);
-
-	/**
-	 * Raise a roam event.
-	 *
-	 * @param address		TRUE if address list, FALSE if routing changed
-	 */
-	void (*roam)(kernel_interface_t *this, bool address);
-
-	/**
-	 * Raise a tun event.
-	 *
-	 * @param tun			TUN device
-	 * @param created		TRUE if created, FALSE if going to be destroyed
-	 */
-	void (*tun)(kernel_interface_t *this, tun_device_t *tun, bool created);
-
-	/**
-	 * Register a new algorithm with the kernel interface.
-	 *
-	 * @param alg_id			the IKE id of the algorithm
-	 * @param type				the transform type of the algorithm
-	 * @param kernel_id			the kernel id of the algorithm
-	 * @param kernel_name		the kernel name of the algorithm
-	 */
-	void (*register_algorithm)(kernel_interface_t *this, u_int16_t alg_id,
-							   transform_type_t type, u_int16_t kernel_id,
-							   char *kernel_name);
-
-	/**
-	 * Return the kernel-specific id and/or name for an algorithms depending on
-	 * the arguments specified.
-	 *
-	 * @param alg_id			the IKE id of the algorithm
-	 * @param type				the transform type of the algorithm
-	 * @param kernel_id			the kernel id of the algorithm (optional)
-	 * @param kernel_name		the kernel name of the algorithm (optional)
-	 * @return					TRUE if algorithm was found
-	 */
-	bool (*lookup_algorithm)(kernel_interface_t *this, u_int16_t alg_id,
-							 transform_type_t type, u_int16_t *kernel_id,
-							 char **kernel_name);
-
-	/**
-	 * Destroys a kernel_interface_t object.
-	 */
-	void (*destroy) (kernel_interface_t *this);
-};
-
-/**
- * Creates an object of type kernel_interface_t.
- */
-kernel_interface_t *kernel_interface_create(void);
-
-#endif /** KERNEL_INTERFACE_H_ @}*/